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P2P: Fix crash when failed to create GO interface
[thirdparty/hostap.git] / wpa_supplicant / config.c
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6fc6879b
JM		 1/*
2 * WPA Supplicant / Configuration parser and common functions
f64adcd7 3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
6fc6879b 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
6fc6879b
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
121adf9c 12#include "utils/uuid.h"
03da66bd 13#include "crypto/sha1.h"
3acb5005 14#include "rsn_supp/wpa.h"
6fc6879b 15#include "eap_peer/eap.h"
21d996f7 16#include "p2p/p2p.h"
6fc6879b
JM		 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 */
29struct 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
6fc6879b
JM		 56static int wpa_config_parse_str(const struct parse_data *data,
57 struct wpa_ssid *ssid,
58 int line, const char *value)
59{
60 size_t res_len, *dst_len;
61 char **dst, *tmp;
62
b56c0546
JM		 63 if (os_strcmp(value, "NULL") == 0) {
64 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
65 data->name);
66 tmp = NULL;
67 res_len = 0;
68 goto set;
69 }
70
6fc6879b
JM		 71 tmp = wpa_config_parse_string(value, &res_len);
72 if (tmp == NULL) {
73 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
74 line, data->name,
75 data->key_data ? "[KEY DATA REMOVED]" : value);
76 return -1;
77 }
78
79 if (data->key_data) {
80 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
81 (u8 *) tmp, res_len);
82 } else {
83 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
84 (u8 *) tmp, res_len);
85 }
86
87 if (data->param3 && res_len < (size_t) data->param3) {
88 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
89 "min_len=%ld)", line, data->name,
90 (unsigned long) res_len, (long) data->param3);
91 os_free(tmp);
92 return -1;
93 }
94
95 if (data->param4 && res_len > (size_t) data->param4) {
96 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
97 "max_len=%ld)", line, data->name,
98 (unsigned long) res_len, (long) data->param4);
99 os_free(tmp);
100 return -1;
101 }
102
b56c0546 103set:
6fc6879b
JM		 104 dst = (char **) (((u8 *) ssid) + (long) data->param1);
105 dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
106 os_free(*dst);
107 *dst = tmp;
108 if (data->param2)
109 *dst_len = res_len;
110
111 return 0;
112}
113
114
115#ifndef NO_CONFIG_WRITE
6fc6879b
JM		 116static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
117{
118 char *buf;
119
120 buf = os_malloc(len + 3);
121 if (buf == NULL)
122 return NULL;
123 buf[0] = '"';
124 os_memcpy(buf + 1, value, len);
125 buf[len + 1] = '"';
126 buf[len + 2] = '\0';
127
128 return buf;
129}
130
131
132static char * wpa_config_write_string_hex(const u8 *value, size_t len)
133{
134 char *buf;
135
136 buf = os_zalloc(2 * len + 1);
137 if (buf == NULL)
138 return NULL;
139 wpa_snprintf_hex(buf, 2 * len + 1, value, len);
140
141 return buf;
142}
143
144
145static char * wpa_config_write_string(const u8 *value, size_t len)
146{
147 if (value == NULL)
148 return NULL;
149
150 if (is_hex(value, len))
151 return wpa_config_write_string_hex(value, len);
152 else
153 return wpa_config_write_string_ascii(value, len);
154}
155
156
157static char * wpa_config_write_str(const struct parse_data *data,
158 struct wpa_ssid *ssid)
159{
160 size_t len;
161 char **src;
162
163 src = (char **) (((u8 *) ssid) + (long) data->param1);
164 if (*src == NULL)
165 return NULL;
166
167 if (data->param2)
168 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
169 else
170 len = os_strlen(*src);
171
172 return wpa_config_write_string((const u8 *) *src, len);
173}
174#endif /* NO_CONFIG_WRITE */
175
176
177static int wpa_config_parse_int(const struct parse_data *data,
178 struct wpa_ssid *ssid,
179 int line, const char *value)
180{
eae3a584
JB		 181 int val, *dst;
182 char *end;
6fc6879b
JM		 183
184 dst = (int *) (((u8 *) ssid) + (long) data->param1);
eae3a584
JB		 185 val = strtol(value, &end, 0);
186 if (*end) {
187 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
188 line, value);
189 return -1;
190 }
191 *dst = val;
6fc6879b
JM		 192 wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
193
194 if (data->param3 && *dst < (long) data->param3) {
195 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
196 "min_value=%ld)", line, data->name, *dst,
197 (long) data->param3);
198 *dst = (long) data->param3;
199 return -1;
200 }
201
202 if (data->param4 && *dst > (long) data->param4) {
203 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
204 "max_value=%ld)", line, data->name, *dst,
205 (long) data->param4);
206 *dst = (long) data->param4;
207 return -1;
208 }
209
210 return 0;
211}
212
213
214#ifndef NO_CONFIG_WRITE
215static char * wpa_config_write_int(const struct parse_data *data,
216 struct wpa_ssid *ssid)
217{
218 int *src, res;
219 char *value;
220
221 src = (int *) (((u8 *) ssid) + (long) data->param1);
222
223 value = os_malloc(20);
224 if (value == NULL)
225 return NULL;
226 res = os_snprintf(value, 20, "%d", *src);
227 if (res < 0 || res >= 20) {
228 os_free(value);
229 return NULL;
230 }
231 value[20 - 1] = '\0';
232 return value;
233}
234#endif /* NO_CONFIG_WRITE */
235
236
237static int wpa_config_parse_bssid(const struct parse_data *data,
238 struct wpa_ssid *ssid, int line,
239 const char *value)
240{
c0a321c5
WJL		 241 if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
242 os_strcmp(value, "any") == 0) {
243 ssid->bssid_set = 0;
244 wpa_printf(MSG_MSGDUMP, "BSSID any");
245 return 0;
246 }
6fc6879b
JM		 247 if (hwaddr_aton(value, ssid->bssid)) {
248 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
249 line, value);
250 return -1;
251 }
252 ssid->bssid_set = 1;
253 wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
254 return 0;
255}
256
257
258#ifndef NO_CONFIG_WRITE
259static char * wpa_config_write_bssid(const struct parse_data *data,
260 struct wpa_ssid *ssid)
261{
262 char *value;
263 int res;
264
265 if (!ssid->bssid_set)
266 return NULL;
267
268 value = os_malloc(20);
269 if (value == NULL)
270 return NULL;
271 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
272 if (res < 0 || res >= 20) {
273 os_free(value);
274 return NULL;
275 }
276 value[20 - 1] = '\0';
277 return value;
278}
279#endif /* NO_CONFIG_WRITE */
280
281
282static int wpa_config_parse_psk(const struct parse_data *data,
283 struct wpa_ssid *ssid, int line,
284 const char *value)
285{
9173b16f
JM		 286#ifdef CONFIG_EXT_PASSWORD
287 if (os_strncmp(value, "ext:", 4) == 0) {
288 os_free(ssid->passphrase);
289 ssid->passphrase = NULL;
290 ssid->psk_set = 0;
291 os_free(ssid->ext_psk);
292 ssid->ext_psk = os_strdup(value + 4);
293 if (ssid->ext_psk == NULL)
294 return -1;
295 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
296 ssid->ext_psk);
297 return 0;
298 }
299#endif /* CONFIG_EXT_PASSWORD */
300
6fc6879b
JM		 301 if (*value == '"') {
302#ifndef CONFIG_NO_PBKDF2
303 const char *pos;
304 size_t len;
305
306 value++;
307 pos = os_strrchr(value, '"');
308 if (pos)
309 len = pos - value;
310 else
311 len = os_strlen(value);
312 if (len < 8 || len > 63) {
313 wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
314 "length %lu (expected: 8..63) '%s'.",
315 line, (unsigned long) len, value);
316 return -1;
317 }
318 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
319 (u8 *) value, len);
320 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
321 os_memcmp(ssid->passphrase, value, len) == 0)
322 return 0;
323 ssid->psk_set = 0;
324 os_free(ssid->passphrase);
5e24dc8a 325 ssid->passphrase = dup_binstr(value, len);
6fc6879b
JM		 326 if (ssid->passphrase == NULL)
327 return -1;
6fc6879b
JM		 328 return 0;
329#else /* CONFIG_NO_PBKDF2 */
330 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
331 "supported.", line);
332 return -1;
333#endif /* CONFIG_NO_PBKDF2 */
334 }
335
336 if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
337 value[PMK_LEN * 2] != '\0') {
338 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
339 line, value);
340 return -1;
341 }
342
343 os_free(ssid->passphrase);
344 ssid->passphrase = NULL;
345
346 ssid->psk_set = 1;
347 wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
348 return 0;
349}
350
351
352#ifndef NO_CONFIG_WRITE
353static char * wpa_config_write_psk(const struct parse_data *data,
354 struct wpa_ssid *ssid)
355{
9173b16f
JM		 356#ifdef CONFIG_EXT_PASSWORD
357 if (ssid->ext_psk) {
358 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
359 char *buf = os_malloc(len);
360 if (buf == NULL)
361 return NULL;
362 os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
363 return buf;
364 }
365#endif /* CONFIG_EXT_PASSWORD */
366
6fc6879b
JM		 367 if (ssid->passphrase)
368 return wpa_config_write_string_ascii(
369 (const u8 *) ssid->passphrase,
370 os_strlen(ssid->passphrase));
371
372 if (ssid->psk_set)
373 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
374
375 return NULL;
376}
377#endif /* NO_CONFIG_WRITE */
378
379
380static int wpa_config_parse_proto(const struct parse_data *data,
381 struct wpa_ssid *ssid, int line,
382 const char *value)
383{
384 int val = 0, last, errors = 0;
385 char *start, *end, *buf;
386
387 buf = os_strdup(value);
388 if (buf == NULL)
389 return -1;
390 start = buf;
391
392 while (*start != '\0') {
393 while (*start == ' ' || *start == '\t')
394 start++;
395 if (*start == '\0')
396 break;
397 end = start;
398 while (*end != ' ' && *end != '\t' && *end != '\0')
399 end++;
400 last = *end == '\0';
401 *end = '\0';
402 if (os_strcmp(start, "WPA") == 0)
403 val |= WPA_PROTO_WPA;
404 else if (os_strcmp(start, "RSN") == 0 ||
405 os_strcmp(start, "WPA2") == 0)
406 val |= WPA_PROTO_RSN;
407 else {
408 wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
409 line, start);
410 errors++;
411 }
412
413 if (last)
414 break;
415 start = end + 1;
416 }
417 os_free(buf);
418
419 if (val == 0) {
420 wpa_printf(MSG_ERROR,
421 "Line %d: no proto values configured.", line);
422 errors++;
423 }
424
425 wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
426 ssid->proto = val;
427 return errors ? -1 : 0;
428}
429
430
431#ifndef NO_CONFIG_WRITE
432static char * wpa_config_write_proto(const struct parse_data *data,
433 struct wpa_ssid *ssid)
434{
435 int first = 1, ret;
436 char *buf, *pos, *end;
437
438 pos = buf = os_zalloc(10);
439 if (buf == NULL)
440 return NULL;
441 end = buf + 10;
442
443 if (ssid->proto & WPA_PROTO_WPA) {
444 ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " ");
445 if (ret < 0 || ret >= end - pos)
446 return buf;
447 pos += ret;
448 first = 0;
449 }
450
451 if (ssid->proto & WPA_PROTO_RSN) {
452 ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " ");
453 if (ret < 0 || ret >= end - pos)
454 return buf;
455 pos += ret;
456 first = 0;
457 }
458
459 return buf;
460}
461#endif /* NO_CONFIG_WRITE */
462
463
464static int wpa_config_parse_key_mgmt(const struct parse_data *data,
465 struct wpa_ssid *ssid, int line,
466 const char *value)
467{
468 int val = 0, last, errors = 0;
469 char *start, *end, *buf;
470
471 buf = os_strdup(value);
472 if (buf == NULL)
473 return -1;
474 start = buf;
475
476 while (*start != '\0') {
477 while (*start == ' ' || *start == '\t')
478 start++;
479 if (*start == '\0')
480 break;
481 end = start;
482 while (*end != ' ' && *end != '\t' && *end != '\0')
483 end++;
484 last = *end == '\0';
485 *end = '\0';
486 if (os_strcmp(start, "WPA-PSK") == 0)
487 val |= WPA_KEY_MGMT_PSK;
488 else if (os_strcmp(start, "WPA-EAP") == 0)
489 val |= WPA_KEY_MGMT_IEEE8021X;
490 else if (os_strcmp(start, "IEEE8021X") == 0)
491 val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
492 else if (os_strcmp(start, "NONE") == 0)
493 val |= WPA_KEY_MGMT_NONE;
494 else if (os_strcmp(start, "WPA-NONE") == 0)
495 val |= WPA_KEY_MGMT_WPA_NONE;
496#ifdef CONFIG_IEEE80211R
497 else if (os_strcmp(start, "FT-PSK") == 0)
498 val |= WPA_KEY_MGMT_FT_PSK;
499 else if (os_strcmp(start, "FT-EAP") == 0)
500 val |= WPA_KEY_MGMT_FT_IEEE8021X;
501#endif /* CONFIG_IEEE80211R */
56586197
JM		 502#ifdef CONFIG_IEEE80211W
503 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
504 val |= WPA_KEY_MGMT_PSK_SHA256;
505 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
506 val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
507#endif /* CONFIG_IEEE80211W */
ad08c363
JM		 508#ifdef CONFIG_WPS
509 else if (os_strcmp(start, "WPS") == 0)
510 val |= WPA_KEY_MGMT_WPS;
511#endif /* CONFIG_WPS */
c10347f2
JM		 512#ifdef CONFIG_SAE
513 else if (os_strcmp(start, "SAE") == 0)
514 val |= WPA_KEY_MGMT_SAE;
515 else if (os_strcmp(start, "FT-SAE") == 0)
516 val |= WPA_KEY_MGMT_FT_SAE;
517#endif /* CONFIG_SAE */
6fc6879b
JM		 518 else {
519 wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
520 line, start);
521 errors++;
522 }
523
524 if (last)
525 break;
526 start = end + 1;
527 }
528 os_free(buf);
529
530 if (val == 0) {
531 wpa_printf(MSG_ERROR,
532 "Line %d: no key_mgmt values configured.", line);
533 errors++;
534 }
535
536 wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
537 ssid->key_mgmt = val;
538 return errors ? -1 : 0;
539}
540
541
542#ifndef NO_CONFIG_WRITE
543static char * wpa_config_write_key_mgmt(const struct parse_data *data,
544 struct wpa_ssid *ssid)
545{
546 char *buf, *pos, *end;
547 int ret;
548
549 pos = buf = os_zalloc(50);
550 if (buf == NULL)
551 return NULL;
552 end = buf + 50;
553
554 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
555 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
556 pos == buf ? "" : " ");
557 if (ret < 0 || ret >= end - pos) {
558 end[-1] = '\0';
559 return buf;
560 }
561 pos += ret;
562 }
563
564 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
565 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
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_NO_WPA) {
575 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
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_NONE) {
585 ret = os_snprintf(pos, end - pos, "%sNONE",
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_WPA_NONE) {
595 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
596 pos == buf ? "" : " ");
597 if (ret < 0 || ret >= end - pos) {
598 end[-1] = '\0';
599 return buf;
600 }
601 pos += ret;
602 }
603
604#ifdef CONFIG_IEEE80211R
605 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK)
606 pos += os_snprintf(pos, end - pos, "%sFT-PSK",
607 pos == buf ? "" : " ");
608
609 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
610 pos += os_snprintf(pos, end - pos, "%sFT-EAP",
611 pos == buf ? "" : " ");
612#endif /* CONFIG_IEEE80211R */
613
56586197
JM		 614#ifdef CONFIG_IEEE80211W
615 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
616 pos += os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
617 pos == buf ? "" : " ");
618
619 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
620 pos += os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
621 pos == buf ? "" : " ");
622#endif /* CONFIG_IEEE80211W */
623
728fae16
JM		 624#ifdef CONFIG_WPS
625 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
626 pos += os_snprintf(pos, end - pos, "%sWPS",
627 pos == buf ? "" : " ");
628#endif /* CONFIG_WPS */
629
6fc6879b
JM		 630 return buf;
631}
632#endif /* NO_CONFIG_WRITE */
633
634
635static int wpa_config_parse_cipher(int line, const char *value)
636{
a39c78be
JM		 637 int val = wpa_parse_cipher(value);
638 if (val < 0) {
639 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
640 line, value);
6fc6879b 641 return -1;
6fc6879b 642 }
6fc6879b
JM		 643 if (val == 0) {
644 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
645 line);
646 return -1;
647 }
648 return val;
649}
650
651
652#ifndef NO_CONFIG_WRITE
653static char * wpa_config_write_cipher(int cipher)
654{
0282a8c4 655 char *buf = os_zalloc(50);
6fc6879b
JM		 656 if (buf == NULL)
657 return NULL;
6fc6879b 658
0282a8c4
JM		 659 if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
660 os_free(buf);
661 return NULL;
6fc6879b
JM		 662 }
663
664 return buf;
665}
666#endif /* NO_CONFIG_WRITE */
667
668
669static int wpa_config_parse_pairwise(const struct parse_data *data,
670 struct wpa_ssid *ssid, int line,
671 const char *value)
672{
673 int val;
674 val = wpa_config_parse_cipher(line, value);
675 if (val == -1)
676 return -1;
03145326 677 if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
6fc6879b
JM		 678 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
679 "(0x%x).", line, val);
680 return -1;
681 }
682
683 wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
684 ssid->pairwise_cipher = val;
685 return 0;
686}
687
688
689#ifndef NO_CONFIG_WRITE
690static char * wpa_config_write_pairwise(const struct parse_data *data,
691 struct wpa_ssid *ssid)
692{
693 return wpa_config_write_cipher(ssid->pairwise_cipher);
694}
695#endif /* NO_CONFIG_WRITE */
696
697
698static int wpa_config_parse_group(const struct parse_data *data,
699 struct wpa_ssid *ssid, int line,
700 const char *value)
701{
702 int val;
703 val = wpa_config_parse_cipher(line, value);
704 if (val == -1)
705 return -1;
03145326 706 if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
6fc6879b
JM		 707 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
708 "(0x%x).", line, val);
709 return -1;
710 }
711
712 wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
713 ssid->group_cipher = val;
714 return 0;
715}
716
717
718#ifndef NO_CONFIG_WRITE
719static char * wpa_config_write_group(const struct parse_data *data,
720 struct wpa_ssid *ssid)
721{
722 return wpa_config_write_cipher(ssid->group_cipher);
723}
724#endif /* NO_CONFIG_WRITE */
725
726
727static int wpa_config_parse_auth_alg(const struct parse_data *data,
728 struct wpa_ssid *ssid, int line,
729 const char *value)
730{
731 int val = 0, last, errors = 0;
732 char *start, *end, *buf;
733
734 buf = os_strdup(value);
735 if (buf == NULL)
736 return -1;
737 start = buf;
738
739 while (*start != '\0') {
740 while (*start == ' ' || *start == '\t')
741 start++;
742 if (*start == '\0')
743 break;
744 end = start;
745 while (*end != ' ' && *end != '\t' && *end != '\0')
746 end++;
747 last = *end == '\0';
748 *end = '\0';
749 if (os_strcmp(start, "OPEN") == 0)
750 val |= WPA_AUTH_ALG_OPEN;
751 else if (os_strcmp(start, "SHARED") == 0)
752 val |= WPA_AUTH_ALG_SHARED;
753 else if (os_strcmp(start, "LEAP") == 0)
754 val |= WPA_AUTH_ALG_LEAP;
755 else {
756 wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
757 line, start);
758 errors++;
759 }
760
761 if (last)
762 break;
763 start = end + 1;
764 }
765 os_free(buf);
766
767 if (val == 0) {
768 wpa_printf(MSG_ERROR,
769 "Line %d: no auth_alg values configured.", line);
770 errors++;
771 }
772
773 wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
774 ssid->auth_alg = val;
775 return errors ? -1 : 0;
776}
777
778
779#ifndef NO_CONFIG_WRITE
780static char * wpa_config_write_auth_alg(const struct parse_data *data,
781 struct wpa_ssid *ssid)
782{
783 char *buf, *pos, *end;
784 int ret;
785
786 pos = buf = os_zalloc(30);
787 if (buf == NULL)
788 return NULL;
789 end = buf + 30;
790
791 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
792 ret = os_snprintf(pos, end - pos, "%sOPEN",
793 pos == buf ? "" : " ");
794 if (ret < 0 || ret >= end - pos) {
795 end[-1] = '\0';
796 return buf;
797 }
798 pos += ret;
799 }
800
801 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
802 ret = os_snprintf(pos, end - pos, "%sSHARED",
803 pos == buf ? "" : " ");
804 if (ret < 0 || ret >= end - pos) {
805 end[-1] = '\0';
806 return buf;
807 }
808 pos += ret;
809 }
810
811 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
812 ret = os_snprintf(pos, end - pos, "%sLEAP",
813 pos == buf ? "" : " ");
814 if (ret < 0 || ret >= end - pos) {
815 end[-1] = '\0';
816 return buf;
817 }
818 pos += ret;
819 }
820
821 return buf;
822}
823#endif /* NO_CONFIG_WRITE */
824
825
625f202a 826static int * wpa_config_parse_int_array(const char *value)
d3a98225
JM		 827{
828 int *freqs;
829 size_t used, len;
830 const char *pos;
831
832 used = 0;
833 len = 10;
f9884c09 834 freqs = os_calloc(len + 1, sizeof(int));
d3a98225 835 if (freqs == NULL)
b766a9a2 836 return NULL;
d3a98225
JM		 837
838 pos = value;
839 while (pos) {
840 while (*pos == ' ')
841 pos++;
842 if (used == len) {
843 int *n;
844 size_t i;
067ffa26 845 n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
d3a98225
JM		 846 if (n == NULL) {
847 os_free(freqs);
b766a9a2 848 return NULL;
d3a98225
JM		 849 }
850 for (i = len; i <= len * 2; i++)
851 n[i] = 0;
852 freqs = n;
853 len *= 2;
854 }
855
856 freqs[used] = atoi(pos);
857 if (freqs[used] == 0)
858 break;
859 used++;
860 pos = os_strchr(pos + 1, ' ');
861 }
862
b766a9a2
JM		 863 return freqs;
864}
865
866
867static int wpa_config_parse_scan_freq(const struct parse_data *data,
868 struct wpa_ssid *ssid, int line,
869 const char *value)
870{
871 int *freqs;
872
625f202a 873 freqs = wpa_config_parse_int_array(value);
b766a9a2
JM		 874 if (freqs == NULL)
875 return -1;
d3a98225
JM		 876 os_free(ssid->scan_freq);
877 ssid->scan_freq = freqs;
878
879 return 0;
880}
881
882
b766a9a2
JM		 883static int wpa_config_parse_freq_list(const struct parse_data *data,
884 struct wpa_ssid *ssid, int line,
885 const char *value)
886{
887 int *freqs;
888
625f202a 889 freqs = wpa_config_parse_int_array(value);
b766a9a2
JM		 890 if (freqs == NULL)
891 return -1;
892 os_free(ssid->freq_list);
893 ssid->freq_list = freqs;
894
895 return 0;
896}
897
898
d3a98225 899#ifndef NO_CONFIG_WRITE
b766a9a2
JM		 900static char * wpa_config_write_freqs(const struct parse_data *data,
901 const int *freqs)
d3a98225
JM		 902{
903 char *buf, *pos, *end;
904 int i, ret;
905 size_t count;
906
b766a9a2 907 if (freqs == NULL)
d3a98225
JM		 908 return NULL;
909
910 count = 0;
b766a9a2 911 for (i = 0; freqs[i]; i++)
d3a98225
JM		 912 count++;
913
914 pos = buf = os_zalloc(10 * count + 1);
915 if (buf == NULL)
916 return NULL;
917 end = buf + 10 * count + 1;
918
b766a9a2 919 for (i = 0; freqs[i]; i++) {
d3a98225 920 ret = os_snprintf(pos, end - pos, "%s%u",
b766a9a2 921 i == 0 ? "" : " ", freqs[i]);
d3a98225
JM		 922 if (ret < 0 || ret >= end - pos) {
923 end[-1] = '\0';
924 return buf;
925 }
926 pos += ret;
927 }
928
929 return buf;
930}
b766a9a2
JM		 931
932
933static char * wpa_config_write_scan_freq(const struct parse_data *data,
934 struct wpa_ssid *ssid)
935{
936 return wpa_config_write_freqs(data, ssid->scan_freq);
937}
938
939
940static char * wpa_config_write_freq_list(const struct parse_data *data,
941 struct wpa_ssid *ssid)
942{
943 return wpa_config_write_freqs(data, ssid->freq_list);
944}
d3a98225
JM		 945#endif /* NO_CONFIG_WRITE */
946
947
6fc6879b
JM		 948#ifdef IEEE8021X_EAPOL
949static int wpa_config_parse_eap(const struct parse_data *data,
950 struct wpa_ssid *ssid, int line,
951 const char *value)
952{
953 int last, errors = 0;
954 char *start, *end, *buf;
955 struct eap_method_type *methods = NULL, *tmp;
956 size_t num_methods = 0;
957
958 buf = os_strdup(value);
959 if (buf == NULL)
960 return -1;
961 start = buf;
962
963 while (*start != '\0') {
964 while (*start == ' ' || *start == '\t')
965 start++;
966 if (*start == '\0')
967 break;
968 end = start;
969 while (*end != ' ' && *end != '\t' && *end != '\0')
970 end++;
971 last = *end == '\0';
972 *end = '\0';
973 tmp = methods;
067ffa26
JM		 974 methods = os_realloc_array(methods, num_methods + 1,
975 sizeof(*methods));
6fc6879b
JM		 976 if (methods == NULL) {
977 os_free(tmp);
978 os_free(buf);
979 return -1;
980 }
981 methods[num_methods].method = eap_peer_get_type(
982 start, &methods[num_methods].vendor);
983 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
984 methods[num_methods].method == EAP_TYPE_NONE) {
985 wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
986 "'%s'", line, start);
987 wpa_printf(MSG_ERROR, "You may need to add support for"
988 " this EAP method during wpa_supplicant\n"
989 "build time configuration.\n"
990 "See README for more information.");
991 errors++;
992 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
993 methods[num_methods].method == EAP_TYPE_LEAP)
994 ssid->leap++;
995 else
996 ssid->non_leap++;
997 num_methods++;
998 if (last)
999 break;
1000 start = end + 1;
1001 }
1002 os_free(buf);
1003
1004 tmp = methods;
067ffa26 1005 methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
6fc6879b
JM		 1006 if (methods == NULL) {
1007 os_free(tmp);
1008 return -1;
1009 }
1010 methods[num_methods].vendor = EAP_VENDOR_IETF;
1011 methods[num_methods].method = EAP_TYPE_NONE;
1012 num_methods++;
1013
1014 wpa_hexdump(MSG_MSGDUMP, "eap methods",
1015 (u8 *) methods, num_methods * sizeof(*methods));
bb8b1bb0 1016 os_free(ssid->eap.eap_methods);
6fc6879b
JM		 1017 ssid->eap.eap_methods = methods;
1018 return errors ? -1 : 0;
1019}
1020
1021
1022static char * wpa_config_write_eap(const struct parse_data *data,
1023 struct wpa_ssid *ssid)
1024{
1025 int i, ret;
1026 char *buf, *pos, *end;
1027 const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1028 const char *name;
1029
1030 if (eap_methods == NULL)
1031 return NULL;
1032
1033 pos = buf = os_zalloc(100);
1034 if (buf == NULL)
1035 return NULL;
1036 end = buf + 100;
1037
1038 for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1039 eap_methods[i].method != EAP_TYPE_NONE; i++) {
1040 name = eap_get_name(eap_methods[i].vendor,
1041 eap_methods[i].method);
1042 if (name) {
1043 ret = os_snprintf(pos, end - pos, "%s%s",
1044 pos == buf ? "" : " ", name);
1045 if (ret < 0 || ret >= end - pos)
1046 break;
1047 pos += ret;
1048 }
1049 }
1050
1051 end[-1] = '\0';
1052
1053 return buf;
1054}
1055
1056
1057static int wpa_config_parse_password(const struct parse_data *data,
1058 struct wpa_ssid *ssid, int line,
1059 const char *value)
1060{
1061 u8 *hash;
1062
b56c0546
JM		 1063 if (os_strcmp(value, "NULL") == 0) {
1064 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1065 os_free(ssid->eap.password);
1066 ssid->eap.password = NULL;
1067 ssid->eap.password_len = 0;
1068 return 0;
1069 }
1070
0ebb23e3
JM		 1071#ifdef CONFIG_EXT_PASSWORD
1072 if (os_strncmp(value, "ext:", 4) == 0) {
1073 char *name = os_strdup(value + 4);
1074 if (name == NULL)
1075 return -1;
1076 os_free(ssid->eap.password);
1077 ssid->eap.password = (u8 *) name;
1078 ssid->eap.password_len = os_strlen(name);
1079 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1080 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1081 return 0;
1082 }
1083#endif /* CONFIG_EXT_PASSWORD */
1084
6fc6879b
JM		 1085 if (os_strncmp(value, "hash:", 5) != 0) {
1086 char *tmp;
1087 size_t res_len;
1088
1089 tmp = wpa_config_parse_string(value, &res_len);
1090 if (tmp == NULL) {
1091 wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1092 "password.", line);
1093 return -1;
1094 }
556f5a2a
HS		 1095 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1096 (u8 *) tmp, res_len);
6fc6879b
JM		 1097
1098 os_free(ssid->eap.password);
1099 ssid->eap.password = (u8 *) tmp;
1100 ssid->eap.password_len = res_len;
1101 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
0ebb23e3 1102 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
6fc6879b
JM		 1103
1104 return 0;
1105 }
1106
1107
1108 /* NtPasswordHash: hash:<32 hex digits> */
1109 if (os_strlen(value + 5) != 2 * 16) {
1110 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1111 "(expected 32 hex digits)", line);
1112 return -1;
1113 }
1114
1115 hash = os_malloc(16);
1116 if (hash == NULL)
1117 return -1;
1118
1119 if (hexstr2bin(value + 5, hash, 16)) {
1120 os_free(hash);
1121 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1122 return -1;
1123 }
1124
1125 wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1126
1127 os_free(ssid->eap.password);
1128 ssid->eap.password = hash;
1129 ssid->eap.password_len = 16;
1130 ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
0ebb23e3 1131 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
6fc6879b
JM		 1132
1133 return 0;
1134}
1135
1136
1137static char * wpa_config_write_password(const struct parse_data *data,
1138 struct wpa_ssid *ssid)
1139{
1140 char *buf;
1141
1142 if (ssid->eap.password == NULL)
1143 return NULL;
1144
0ebb23e3
JM		 1145#ifdef CONFIG_EXT_PASSWORD
1146 if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1147 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1148 if (buf == NULL)
1149 return NULL;
1150 os_memcpy(buf, "ext:", 4);
1151 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1152 return buf;
1153 }
1154#endif /* CONFIG_EXT_PASSWORD */
1155
6fc6879b
JM		 1156 if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1157 return wpa_config_write_string(
1158 ssid->eap.password, ssid->eap.password_len);
1159 }
1160
1161 buf = os_malloc(5 + 32 + 1);
1162 if (buf == NULL)
1163 return NULL;
1164
1165 os_memcpy(buf, "hash:", 5);
1166 wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1167
1168 return buf;
1169}
1170#endif /* IEEE8021X_EAPOL */
1171
1172
1173static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1174 const char *value, int idx)
1175{
1176 char *buf, title[20];
1177 int res;
1178
1179 buf = wpa_config_parse_string(value, len);
1180 if (buf == NULL) {
1181 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1182 line, idx, value);
1183 return -1;
1184 }
1185 if (*len > MAX_WEP_KEY_LEN) {
1186 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1187 line, idx, value);
1188 os_free(buf);
1189 return -1;
1190 }
fea7c3a0
JM		 1191 if (*len && *len != 5 && *len != 13 && *len != 16) {
1192 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1193 "this network block will be ignored",
1194 line, (unsigned int) *len);
1195 }
6fc6879b
JM		 1196 os_memcpy(key, buf, *len);
1197 os_free(buf);
1198 res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1199 if (res >= 0 && (size_t) res < sizeof(title))
1200 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1201 return 0;
1202}
1203
1204
1205static int wpa_config_parse_wep_key0(const struct parse_data *data,
1206 struct wpa_ssid *ssid, int line,
1207 const char *value)
1208{
1209 return wpa_config_parse_wep_key(ssid->wep_key[0],
1210 &ssid->wep_key_len[0], line,
1211 value, 0);
1212}
1213
1214
1215static int wpa_config_parse_wep_key1(const struct parse_data *data,
1216 struct wpa_ssid *ssid, int line,
1217 const char *value)
1218{
1219 return wpa_config_parse_wep_key(ssid->wep_key[1],
1220 &ssid->wep_key_len[1], line,
1221 value, 1);
1222}
1223
1224
1225static int wpa_config_parse_wep_key2(const struct parse_data *data,
1226 struct wpa_ssid *ssid, int line,
1227 const char *value)
1228{
1229 return wpa_config_parse_wep_key(ssid->wep_key[2],
1230 &ssid->wep_key_len[2], line,
1231 value, 2);
1232}
1233
1234
1235static int wpa_config_parse_wep_key3(const struct parse_data *data,
1236 struct wpa_ssid *ssid, int line,
1237 const char *value)
1238{
1239 return wpa_config_parse_wep_key(ssid->wep_key[3],
1240 &ssid->wep_key_len[3], line,
1241 value, 3);
1242}
1243
1244
1245#ifndef NO_CONFIG_WRITE
1246static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1247{
1248 if (ssid->wep_key_len[idx] == 0)
1249 return NULL;
1250 return wpa_config_write_string(ssid->wep_key[idx],
1251 ssid->wep_key_len[idx]);
1252}
1253
1254
1255static char * wpa_config_write_wep_key0(const struct parse_data *data,
1256 struct wpa_ssid *ssid)
1257{
1258 return wpa_config_write_wep_key(ssid, 0);
1259}
1260
1261
1262static char * wpa_config_write_wep_key1(const struct parse_data *data,
1263 struct wpa_ssid *ssid)
1264{
1265 return wpa_config_write_wep_key(ssid, 1);
1266}
1267
1268
1269static char * wpa_config_write_wep_key2(const struct parse_data *data,
1270 struct wpa_ssid *ssid)
1271{
1272 return wpa_config_write_wep_key(ssid, 2);
1273}
1274
1275
1276static char * wpa_config_write_wep_key3(const struct parse_data *data,
1277 struct wpa_ssid *ssid)
1278{
1279 return wpa_config_write_wep_key(ssid, 3);
1280}
1281#endif /* NO_CONFIG_WRITE */
1282
1283
fbdcfd57
JM		 1284#ifdef CONFIG_P2P
1285
1286static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1287 struct wpa_ssid *ssid, int line,
1288 const char *value)
1289{
1290 const char *pos;
1291 u8 *buf, *n, addr[ETH_ALEN];
1292 size_t count;
1293
1294 buf = NULL;
1295 count = 0;
1296
1297 pos = value;
1298 while (pos && *pos) {
1299 while (*pos == ' ')
1300 pos++;
1301
1302 if (hwaddr_aton(pos, addr)) {
22316795
JM		 1303 if (count == 0) {
1304 wpa_printf(MSG_ERROR, "Line %d: Invalid "
1305 "p2p_client_list address '%s'.",
1306 line, value);
1307 os_free(buf);
1308 return -1;
1309 }
1310 /* continue anyway since this could have been from a
1311 * truncated configuration file line */
1312 wpa_printf(MSG_INFO, "Line %d: Ignore likely "
1313 "truncated p2p_client_list address '%s'",
1314 line, pos);
fbdcfd57 1315 } else {
067ffa26 1316 n = os_realloc_array(buf, count + 1, ETH_ALEN);
fbdcfd57
JM		 1317 if (n == NULL) {
1318 os_free(buf);
1319 return -1;
1320 }
1321 buf = n;
22316795
JM		 1322 os_memmove(buf + ETH_ALEN, buf, count * ETH_ALEN);
1323 os_memcpy(buf, addr, ETH_ALEN);
fbdcfd57
JM		 1324 count++;
1325 wpa_hexdump(MSG_MSGDUMP, "p2p_client_list",
1326 addr, ETH_ALEN);
1327 }
1328
1329 pos = os_strchr(pos, ' ');
1330 }
1331
1332 os_free(ssid->p2p_client_list);
1333 ssid->p2p_client_list = buf;
1334 ssid->num_p2p_clients = count;
1335
1336 return 0;
1337}
1338
1339
1340#ifndef NO_CONFIG_WRITE
1341static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1342 struct wpa_ssid *ssid)
1343{
1344 char *value, *end, *pos;
1345 int res;
1346 size_t i;
1347
1348 if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0)
1349 return NULL;
1350
1351 value = os_malloc(20 * ssid->num_p2p_clients);
1352 if (value == NULL)
1353 return NULL;
1354 pos = value;
1355 end = value + 20 * ssid->num_p2p_clients;
1356
22316795 1357 for (i = ssid->num_p2p_clients; i > 0; i--) {
fbdcfd57
JM		 1358 res = os_snprintf(pos, end - pos, MACSTR " ",
1359 MAC2STR(ssid->p2p_client_list +
22316795 1360 (i - 1) * ETH_ALEN));
fbdcfd57
JM		 1361 if (res < 0 || res >= end - pos) {
1362 os_free(value);
1363 return NULL;
1364 }
1365 pos += res;
1366 }
1367
1368 if (pos > value)
1369 pos[-1] = '\0';
1370
1371 return value;
1372}
1373#endif /* NO_CONFIG_WRITE */
1374
01a57fe4
JM		 1375
1376static int wpa_config_parse_psk_list(const struct parse_data *data,
1377 struct wpa_ssid *ssid, int line,
1378 const char *value)
1379{
1380 struct psk_list_entry *p;
1381 const char *pos;
1382
1383 p = os_zalloc(sizeof(*p));
1384 if (p == NULL)
1385 return -1;
1386
1387 pos = value;
1388 if (os_strncmp(pos, "P2P-", 4) == 0) {
1389 p->p2p = 1;
1390 pos += 4;
1391 }
1392
1393 if (hwaddr_aton(pos, p->addr)) {
1394 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1395 line, pos);
1396 os_free(p);
1397 return -1;
1398 }
1399 pos += 17;
1400 if (*pos != '-') {
1401 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1402 line, pos);
1403 os_free(p);
1404 return -1;
1405 }
1406 pos++;
1407
1408 if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1409 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1410 line, pos);
1411 os_free(p);
1412 return -1;
1413 }
1414
1415 dl_list_add(&ssid->psk_list, &p->list);
1416
1417 return 0;
1418}
1419
1420
1421#ifndef NO_CONFIG_WRITE
1422static char * wpa_config_write_psk_list(const struct parse_data *data,
1423 struct wpa_ssid *ssid)
1424{
1425 return NULL;
1426}
1427#endif /* NO_CONFIG_WRITE */
1428
fbdcfd57
JM		 1429#endif /* CONFIG_P2P */
1430
6fc6879b
JM		 1431/* Helper macros for network block parser */
1432
1433#ifdef OFFSET
1434#undef OFFSET
1435#endif /* OFFSET */
1436/* OFFSET: Get offset of a variable within the wpa_ssid structure */
1437#define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1438
1439/* STR: Define a string variable for an ASCII string; f = field name */
1440#ifdef NO_CONFIG_WRITE
1441#define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1442#define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1443#else /* NO_CONFIG_WRITE */
1444#define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1445#define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1446#endif /* NO_CONFIG_WRITE */
1447#define STR(f) _STR(f), NULL, NULL, NULL, 0
1448#define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1449#define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1450#define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1451
1452/* STR_LEN: Define a string variable with a separate variable for storing the
1453 * data length. Unlike STR(), this can be used to store arbitrary binary data
1454 * (i.e., even nul termination character). */
1455#define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1456#define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1457#define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1458#define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1459#define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1460
1461/* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1462 * explicitly specified. */
1463#define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1464#define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1465#define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1466
1467#ifdef NO_CONFIG_WRITE
1468#define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1469#define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1470#else /* NO_CONFIG_WRITE */
1471#define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1472 OFFSET(f), (void *) 0
1473#define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1474 OFFSET(eap.f), (void *) 0
1475#endif /* NO_CONFIG_WRITE */
1476
1477/* INT: Define an integer variable */
1478#define INT(f) _INT(f), NULL, NULL, 0
1479#define INTe(f) _INTe(f), NULL, NULL, 0
1480
1481/* INT_RANGE: Define an integer variable with allowed value range */
1482#define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1483
1484/* FUNC: Define a configuration variable that uses a custom function for
1485 * parsing and writing the value. */
1486#ifdef NO_CONFIG_WRITE
1487#define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1488#else /* NO_CONFIG_WRITE */
1489#define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1490 NULL, NULL, NULL, NULL
1491#endif /* NO_CONFIG_WRITE */
1492#define FUNC(f) _FUNC(f), 0
1493#define FUNC_KEY(f) _FUNC(f), 1
1494
1495/*
1496 * Table of network configuration variables. This table is used to parse each
1497 * network configuration variable, e.g., each line in wpa_supplicant.conf file
1498 * that is inside a network block.
1499 *
1500 * This table is generated using the helper macros defined above and with
1501 * generous help from the C pre-processor. The field name is stored as a string
1502 * into .name and for STR and INT types, the offset of the target buffer within
1503 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1504 * offset to the field containing the length of the configuration variable.
1505 * .param3 and .param4 can be used to mark the allowed range (length for STR
1506 * and value for INT).
1507 *
1508 * For each configuration line in wpa_supplicant.conf, the parser goes through
1509 * this table and select the entry that matches with the field name. The parser
1510 * function (.parser) is then called to parse the actual value of the field.
1511 *
1512 * This kind of mechanism makes it easy to add new configuration parameters,
1513 * since only one line needs to be added into this table and into the
1514 * struct wpa_ssid definition if the new variable is either a string or
1515 * integer. More complex types will need to use their own parser and writer
1516 * functions.
1517 */
1518static const struct parse_data ssid_fields[] = {
1519 { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1520 { INT_RANGE(scan_ssid, 0, 1) },
1521 { FUNC(bssid) },
1522 { FUNC_KEY(psk) },
1523 { FUNC(proto) },
1524 { FUNC(key_mgmt) },
1f6c0ab8 1525 { INT(bg_scan_period) },
6fc6879b
JM		 1526 { FUNC(pairwise) },
1527 { FUNC(group) },
1528 { FUNC(auth_alg) },
d3a98225 1529 { FUNC(scan_freq) },
b766a9a2 1530 { FUNC(freq_list) },
6fc6879b
JM		 1531#ifdef IEEE8021X_EAPOL
1532 { FUNC(eap) },
1533 { STR_LENe(identity) },
1534 { STR_LENe(anonymous_identity) },
556f5a2a 1535 { FUNC_KEY(password) },
6fc6879b
JM		 1536 { STRe(ca_cert) },
1537 { STRe(ca_path) },
1538 { STRe(client_cert) },
1539 { STRe(private_key) },
1540 { STR_KEYe(private_key_passwd) },
1541 { STRe(dh_file) },
1542 { STRe(subject_match) },
1543 { STRe(altsubject_match) },
1544 { STRe(ca_cert2) },
1545 { STRe(ca_path2) },
1546 { STRe(client_cert2) },
1547 { STRe(private_key2) },
1548 { STR_KEYe(private_key2_passwd) },
1549 { STRe(dh_file2) },
1550 { STRe(subject_match2) },
1551 { STRe(altsubject_match2) },
1552 { STRe(phase1) },
1553 { STRe(phase2) },
1554 { STRe(pcsc) },
1555 { STR_KEYe(pin) },
1556 { STRe(engine_id) },
1557 { STRe(key_id) },
61ee0f71
DS		 1558 { STRe(cert_id) },
1559 { STRe(ca_cert_id) },
98842d51
CL		 1560 { STR_KEYe(pin2) },
1561 { STRe(engine2_id) },
61ee0f71
DS		 1562 { STRe(key2_id) },
1563 { STRe(cert2_id) },
1564 { STRe(ca_cert2_id) },
6fc6879b 1565 { INTe(engine) },
98842d51 1566 { INTe(engine2) },
6fc6879b
JM		 1567 { INT(eapol_flags) },
1568#endif /* IEEE8021X_EAPOL */
1569 { FUNC_KEY(wep_key0) },
1570 { FUNC_KEY(wep_key1) },
1571 { FUNC_KEY(wep_key2) },
1572 { FUNC_KEY(wep_key3) },
1573 { INT(wep_tx_keyidx) },
1574 { INT(priority) },
1575#ifdef IEEE8021X_EAPOL
1576 { INT(eap_workaround) },
1577 { STRe(pac_file) },
1578 { INTe(fragment_size) },
080585c0 1579 { INTe(ocsp) },
6fc6879b 1580#endif /* IEEE8021X_EAPOL */
2c5d725c 1581 { INT_RANGE(mode, 0, 4) },
6fc6879b 1582 { INT_RANGE(proactive_key_caching, 0, 1) },
4dac0245 1583 { INT_RANGE(disabled, 0, 2) },
6fc6879b
JM		 1584 { STR(id_str) },
1585#ifdef CONFIG_IEEE80211W
1586 { INT_RANGE(ieee80211w, 0, 2) },
1587#endif /* CONFIG_IEEE80211W */
1588 { INT_RANGE(peerkey, 0, 1) },
1589 { INT_RANGE(mixed_cell, 0, 1) },
7829894c 1590 { INT_RANGE(frequency, 0, 65000) },
60b94c98
JM		 1591 { INT(wpa_ptk_rekey) },
1592 { STR(bgscan) },
e62f4ed0 1593 { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
fbdcfd57
JM		 1594#ifdef CONFIG_P2P
1595 { FUNC(p2p_client_list) },
01a57fe4 1596 { FUNC(psk_list) },
fbdcfd57 1597#endif /* CONFIG_P2P */
80e8a5ee
BG		 1598#ifdef CONFIG_HT_OVERRIDES
1599 { INT_RANGE(disable_ht, 0, 1) },
1600 { INT_RANGE(disable_ht40, -1, 1) },
a90497f8 1601 { INT_RANGE(disable_sgi, 0, 1) },
80e8a5ee
BG		 1602 { INT_RANGE(disable_max_amsdu, -1, 1) },
1603 { INT_RANGE(ampdu_factor, -1, 3) },
1604 { INT_RANGE(ampdu_density, -1, 7) },
1605 { STR(ht_mcs) },
1606#endif /* CONFIG_HT_OVERRIDES */
e9ee8dc3
JB		 1607#ifdef CONFIG_VHT_OVERRIDES
1608 { INT_RANGE(disable_vht, 0, 1) },
1609 { INT(vht_capa) },
1610 { INT(vht_capa_mask) },
1611 { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1612 { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1613 { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1614 { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1615 { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1616 { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1617 { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1618 { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1619 { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1620 { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1621 { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1622 { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1623 { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1624 { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1625 { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1626 { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1627#endif /* CONFIG_VHT_OVERRIDES */
07f53b8c 1628 { INT(ap_max_inactivity) },
fdfb1c8b 1629 { INT(dtim_period) },
18206e02 1630 { INT(beacon_int) },
6fc6879b
JM		 1631};
1632
1633#undef OFFSET
1634#undef _STR
1635#undef STR
1636#undef STR_KEY
1637#undef _STR_LEN
1638#undef STR_LEN
1639#undef STR_LEN_KEY
1640#undef _STR_RANGE
1641#undef STR_RANGE
1642#undef STR_RANGE_KEY
1643#undef _INT
1644#undef INT
1645#undef INT_RANGE
1646#undef _FUNC
1647#undef FUNC
1648#undef FUNC_KEY
1649#define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0]))
1650
1651
1652/**
1653 * wpa_config_add_prio_network - Add a network to priority lists
1654 * @config: Configuration data from wpa_config_read()
1655 * @ssid: Pointer to the network configuration to be added to the list
1656 * Returns: 0 on success, -1 on failure
1657 *
1658 * This function is used to add a network block to the priority list of
1659 * networks. This must be called for each network when reading in the full
1660 * configuration. In addition, this can be used indirectly when updating
1661 * priorities by calling wpa_config_update_prio_list().
1662 */
1663int wpa_config_add_prio_network(struct wpa_config *config,
1664 struct wpa_ssid *ssid)
1665{
1666 int prio;
1667 struct wpa_ssid *prev, **nlist;
1668
1669 /*
1670 * Add to an existing priority list if one is available for the
1671 * configured priority level for this network.
1672 */
1673 for (prio = 0; prio < config->num_prio; prio++) {
1674 prev = config->pssid[prio];
1675 if (prev->priority == ssid->priority) {
1676 while (prev->pnext)
1677 prev = prev->pnext;
1678 prev->pnext = ssid;
1679 return 0;
1680 }
1681 }
1682
1683 /* First network for this priority - add a new priority list */
067ffa26
JM		 1684 nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1685 sizeof(struct wpa_ssid *));
6fc6879b
JM		 1686 if (nlist == NULL)
1687 return -1;
1688
1689 for (prio = 0; prio < config->num_prio; prio++) {
2c60ca73
JM		 1690 if (nlist[prio]->priority < ssid->priority) {
1691 os_memmove(&nlist[prio + 1], &nlist[prio],
1692 (config->num_prio - prio) *
1693 sizeof(struct wpa_ssid *));
6fc6879b 1694 break;
2c60ca73 1695 }
6fc6879b
JM		 1696 }
1697
6fc6879b
JM		 1698 nlist[prio] = ssid;
1699 config->num_prio++;
1700 config->pssid = nlist;
1701
1702 return 0;
1703}
1704
1705
1706/**
1707 * wpa_config_update_prio_list - Update network priority list
1708 * @config: Configuration data from wpa_config_read()
1709 * Returns: 0 on success, -1 on failure
1710 *
1711 * This function is called to update the priority list of networks in the
1712 * configuration when a network is being added or removed. This is also called
1713 * if a priority for a network is changed.
1714 */
aa53509f 1715int wpa_config_update_prio_list(struct wpa_config *config)
6fc6879b
JM		 1716{
1717 struct wpa_ssid *ssid;
1718 int ret = 0;
1719
1720 os_free(config->pssid);
1721 config->pssid = NULL;
1722 config->num_prio = 0;
1723
1724 ssid = config->ssid;
1725 while (ssid) {
1726 ssid->pnext = NULL;
1727 if (wpa_config_add_prio_network(config, ssid) < 0)
1728 ret = -1;
1729 ssid = ssid->next;
1730 }
1731
1732 return ret;
1733}
1734
1735
1736#ifdef IEEE8021X_EAPOL
1737static void eap_peer_config_free(struct eap_peer_config *eap)
1738{
1739 os_free(eap->eap_methods);
1740 os_free(eap->identity);
1741 os_free(eap->anonymous_identity);
1742 os_free(eap->password);
1743 os_free(eap->ca_cert);
1744 os_free(eap->ca_path);
1745 os_free(eap->client_cert);
1746 os_free(eap->private_key);
1747 os_free(eap->private_key_passwd);
1748 os_free(eap->dh_file);
1749 os_free(eap->subject_match);
1750 os_free(eap->altsubject_match);
1751 os_free(eap->ca_cert2);
1752 os_free(eap->ca_path2);
1753 os_free(eap->client_cert2);
1754 os_free(eap->private_key2);
1755 os_free(eap->private_key2_passwd);
1756 os_free(eap->dh_file2);
1757 os_free(eap->subject_match2);
1758 os_free(eap->altsubject_match2);
1759 os_free(eap->phase1);
1760 os_free(eap->phase2);
1761 os_free(eap->pcsc);
1762 os_free(eap->pin);
1763 os_free(eap->engine_id);
1764 os_free(eap->key_id);
61ee0f71
DS		 1765 os_free(eap->cert_id);
1766 os_free(eap->ca_cert_id);
1767 os_free(eap->key2_id);
1768 os_free(eap->cert2_id);
1769 os_free(eap->ca_cert2_id);
98842d51
CL		 1770 os_free(eap->pin2);
1771 os_free(eap->engine2_id);
6fc6879b
JM		 1772 os_free(eap->otp);
1773 os_free(eap->pending_req_otp);
1774 os_free(eap->pac_file);
1775 os_free(eap->new_password);
1776}
1777#endif /* IEEE8021X_EAPOL */
1778
1779
1780/**
1781 * wpa_config_free_ssid - Free network/ssid configuration data
1782 * @ssid: Configuration data for the network
1783 *
1784 * This function frees all resources allocated for the network configuration
1785 * data.
1786 */
1787void wpa_config_free_ssid(struct wpa_ssid *ssid)
1788{
01a57fe4
JM		 1789 struct psk_list_entry *psk;
1790
6fc6879b
JM		 1791 os_free(ssid->ssid);
1792 os_free(ssid->passphrase);
9173b16f 1793 os_free(ssid->ext_psk);
6fc6879b
JM		 1794#ifdef IEEE8021X_EAPOL
1795 eap_peer_config_free(&ssid->eap);
1796#endif /* IEEE8021X_EAPOL */
1797 os_free(ssid->id_str);
d3a98225 1798 os_free(ssid->scan_freq);
b766a9a2 1799 os_free(ssid->freq_list);
60b94c98 1800 os_free(ssid->bgscan);
fbdcfd57 1801 os_free(ssid->p2p_client_list);
80e8a5ee
BG		 1802#ifdef CONFIG_HT_OVERRIDES
1803 os_free(ssid->ht_mcs);
1804#endif /* CONFIG_HT_OVERRIDES */
01a57fe4
JM		 1805 while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
1806 list))) {
1807 dl_list_del(&psk->list);
1808 os_free(psk);
1809 }
6fc6879b
JM		 1810 os_free(ssid);
1811}
1812
1813
1bb7b8e8
JM		 1814void wpa_config_free_cred(struct wpa_cred *cred)
1815{
1816 os_free(cred->realm);
1817 os_free(cred->username);
1818 os_free(cred->password);
1819 os_free(cred->ca_cert);
11e4f46a
JM		 1820 os_free(cred->client_cert);
1821 os_free(cred->private_key);
1822 os_free(cred->private_key_passwd);
1bb7b8e8
JM		 1823 os_free(cred->imsi);
1824 os_free(cred->milenage);
1825 os_free(cred->domain);
8ca93c59
JM		 1826 os_free(cred->eap_method);
1827 os_free(cred->phase1);
1828 os_free(cred->phase2);
dbea8ac7 1829 os_free(cred->excluded_ssid);
1bb7b8e8
JM		 1830 os_free(cred);
1831}
1832
1833
6fc6879b
JM		 1834/**
1835 * wpa_config_free - Free configuration data
1836 * @config: Configuration data from wpa_config_read()
1837 *
1838 * This function frees all resources allocated for the configuration data by
1839 * wpa_config_read().
1840 */
1841void wpa_config_free(struct wpa_config *config)
1842{
1843#ifndef CONFIG_NO_CONFIG_BLOBS
1844 struct wpa_config_blob *blob, *prevblob;
1845#endif /* CONFIG_NO_CONFIG_BLOBS */
1846 struct wpa_ssid *ssid, *prev = NULL;
1bb7b8e8 1847 struct wpa_cred *cred, *cprev;
e3768e7c 1848
6fc6879b
JM		 1849 ssid = config->ssid;
1850 while (ssid) {
1851 prev = ssid;
1852 ssid = ssid->next;
1853 wpa_config_free_ssid(prev);
1854 }
1855
1bb7b8e8
JM		 1856 cred = config->cred;
1857 while (cred) {
1858 cprev = cred;
1859 cred = cred->next;
1860 wpa_config_free_cred(cprev);
1861 }
1862
6fc6879b
JM		 1863#ifndef CONFIG_NO_CONFIG_BLOBS
1864 blob = config->blobs;
1865 prevblob = NULL;
1866 while (blob) {
1867 prevblob = blob;
1868 blob = blob->next;
1869 wpa_config_free_blob(prevblob);
1870 }
1871#endif /* CONFIG_NO_CONFIG_BLOBS */
1872
71dd3b78 1873 wpabuf_free(config->wps_vendor_ext_m1);
6fc6879b
JM		 1874 os_free(config->ctrl_interface);
1875 os_free(config->ctrl_interface_group);
6fc6879b
JM		 1876 os_free(config->opensc_engine_path);
1877 os_free(config->pkcs11_engine_path);
1878 os_free(config->pkcs11_module_path);
f64adcd7
JM		 1879 os_free(config->pcsc_reader);
1880 os_free(config->pcsc_pin);
6fc6879b 1881 os_free(config->driver_param);
3c0b7aa4
JM		 1882 os_free(config->device_name);
1883 os_free(config->manufacturer);
1884 os_free(config->model_name);
1885 os_free(config->model_number);
1886 os_free(config->serial_number);
c0e4dd9e 1887 os_free(config->config_methods);
e3768e7c 1888 os_free(config->p2p_ssid_postfix);
6fc6879b 1889 os_free(config->pssid);
21d996f7 1890 os_free(config->p2p_pref_chan);
b0786fba 1891 os_free(config->autoscan);
f5ffc348 1892 os_free(config->freq_list);
3f2c8ba6
JM		 1893 wpabuf_free(config->wps_nfc_dh_pubkey);
1894 wpabuf_free(config->wps_nfc_dh_privkey);
1895 wpabuf_free(config->wps_nfc_dev_pw);
306ae225 1896 os_free(config->ext_password_backend);
625f202a 1897 os_free(config->sae_groups);
18a2eaab 1898 wpabuf_free(config->ap_vendor_elements);
6fc6879b
JM		 1899 os_free(config);
1900}
1901
1902
7c49fdd0
SL		 1903/**
1904 * wpa_config_foreach_network - Iterate over each configured network
1905 * @config: Configuration data from wpa_config_read()
1906 * @func: Callback function to process each network
1907 * @arg: Opaque argument to pass to callback function
1908 *
1909 * Iterate over the set of configured networks calling the specified
1910 * function for each item. We guard against callbacks removing the
1911 * supplied network.
1912 */
1913void wpa_config_foreach_network(struct wpa_config *config,
1914 void (*func)(void *, struct wpa_ssid *),
1915 void *arg)
1916{
1917 struct wpa_ssid *ssid, *next;
1918
1919 ssid = config->ssid;
1920 while (ssid) {
1921 next = ssid->next;
1922 func(arg, ssid);
1923 ssid = next;
1924 }
1925}
1926
1927
6fc6879b
JM		 1928/**
1929 * wpa_config_get_network - Get configured network based on id
1930 * @config: Configuration data from wpa_config_read()
1931 * @id: Unique network id to search for
1932 * Returns: Network configuration or %NULL if not found
1933 */
1934struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
1935{
1936 struct wpa_ssid *ssid;
1937
1938 ssid = config->ssid;
1939 while (ssid) {
1940 if (id == ssid->id)
1941 break;
1942 ssid = ssid->next;
1943 }
1944
1945 return ssid;
1946}
1947
1948
1949/**
1950 * wpa_config_add_network - Add a new network with empty configuration
1951 * @config: Configuration data from wpa_config_read()
1952 * Returns: The new network configuration or %NULL if operation failed
1953 */
1954struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
1955{
1956 int id;
1957 struct wpa_ssid *ssid, *last = NULL;
1958
1959 id = -1;
1960 ssid = config->ssid;
1961 while (ssid) {
1962 if (ssid->id > id)
1963 id = ssid->id;
1964 last = ssid;
1965 ssid = ssid->next;
1966 }
1967 id++;
1968
1969 ssid = os_zalloc(sizeof(*ssid));
1970 if (ssid == NULL)
1971 return NULL;
1972 ssid->id = id;
01a57fe4 1973 dl_list_init(&ssid->psk_list);
6fc6879b
JM		 1974 if (last)
1975 last->next = ssid;
1976 else
1977 config->ssid = ssid;
1978
1979 wpa_config_update_prio_list(config);
1980
1981 return ssid;
1982}
1983
1984
1985/**
1986 * wpa_config_remove_network - Remove a configured network based on id
1987 * @config: Configuration data from wpa_config_read()
1988 * @id: Unique network id to search for
1989 * Returns: 0 on success, or -1 if the network was not found
1990 */
1991int wpa_config_remove_network(struct wpa_config *config, int id)
1992{
1993 struct wpa_ssid *ssid, *prev = NULL;
1994
1995 ssid = config->ssid;
1996 while (ssid) {
1997 if (id == ssid->id)
1998 break;
1999 prev = ssid;
2000 ssid = ssid->next;
2001 }
2002
2003 if (ssid == NULL)
2004 return -1;
2005
2006 if (prev)
2007 prev->next = ssid->next;
2008 else
2009 config->ssid = ssid->next;
2010
2011 wpa_config_update_prio_list(config);
2012 wpa_config_free_ssid(ssid);
2013 return 0;
2014}
2015
2016
2017/**
2018 * wpa_config_set_network_defaults - Set network default values
2019 * @ssid: Pointer to network configuration data
2020 */
2021void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2022{
2023 ssid->proto = DEFAULT_PROTO;
2024 ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2025 ssid->group_cipher = DEFAULT_GROUP;
2026 ssid->key_mgmt = DEFAULT_KEY_MGMT;
1f6c0ab8 2027 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
6fc6879b
JM		 2028#ifdef IEEE8021X_EAPOL
2029 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2030 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2031 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2032#endif /* IEEE8021X_EAPOL */
80e8a5ee
BG		 2033#ifdef CONFIG_HT_OVERRIDES
2034 ssid->disable_ht = DEFAULT_DISABLE_HT;
2035 ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
a90497f8 2036 ssid->disable_sgi = DEFAULT_DISABLE_SGI;
80e8a5ee
BG		 2037 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2038 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2039 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2040#endif /* CONFIG_HT_OVERRIDES */
e9ee8dc3
JB		 2041#ifdef CONFIG_VHT_OVERRIDES
2042 ssid->vht_rx_mcs_nss_1 = -1;
2043 ssid->vht_rx_mcs_nss_2 = -1;
2044 ssid->vht_rx_mcs_nss_3 = -1;
2045 ssid->vht_rx_mcs_nss_4 = -1;
2046 ssid->vht_rx_mcs_nss_5 = -1;
2047 ssid->vht_rx_mcs_nss_6 = -1;
2048 ssid->vht_rx_mcs_nss_7 = -1;
2049 ssid->vht_rx_mcs_nss_8 = -1;
2050 ssid->vht_tx_mcs_nss_1 = -1;
2051 ssid->vht_tx_mcs_nss_2 = -1;
2052 ssid->vht_tx_mcs_nss_3 = -1;
2053 ssid->vht_tx_mcs_nss_4 = -1;
2054 ssid->vht_tx_mcs_nss_5 = -1;
2055 ssid->vht_tx_mcs_nss_6 = -1;
2056 ssid->vht_tx_mcs_nss_7 = -1;
2057 ssid->vht_tx_mcs_nss_8 = -1;
2058#endif /* CONFIG_VHT_OVERRIDES */
6e202021 2059 ssid->proactive_key_caching = -1;
62d49803
JM		 2060#ifdef CONFIG_IEEE80211W
2061 ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2062#endif /* CONFIG_IEEE80211W */
6fc6879b
JM		 2063}
2064
2065
2066/**
2067 * wpa_config_set - Set a variable in network configuration
2068 * @ssid: Pointer to network configuration data
2069 * @var: Variable name, e.g., "ssid"
2070 * @value: Variable value
2071 * @line: Line number in configuration file or 0 if not used
2072 * Returns: 0 on success, -1 on failure
2073 *
2074 * This function can be used to set network configuration variables based on
2075 * both the configuration file and management interface input. The value
2076 * parameter must be in the same format as the text-based configuration file is
2077 * using. For example, strings are using double quotation marks.
2078 */
2079int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2080 int line)
2081{
2082 size_t i;
2083 int ret = 0;
2084
2085 if (ssid == NULL || var == NULL || value == NULL)
2086 return -1;
2087
2088 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2089 const struct parse_data *field = &ssid_fields[i];
2090 if (os_strcmp(var, field->name) != 0)
2091 continue;
2092
2093 if (field->parser(field, ssid, line, value)) {
2094 if (line) {
2095 wpa_printf(MSG_ERROR, "Line %d: failed to "
2096 "parse %s '%s'.", line, var, value);
2097 }
2098 ret = -1;
2099 }
2100 break;
2101 }
2102 if (i == NUM_SSID_FIELDS) {
2103 if (line) {
2104 wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2105 "'%s'.", line, var);
2106 }
2107 ret = -1;
2108 }
2109
2110 return ret;
2111}
2112
2113
67e1b984
JM		 2114int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2115 const char *value)
2116{
2117 size_t len;
2118 char *buf;
2119 int ret;
2120
2121 len = os_strlen(value);
2122 buf = os_malloc(len + 3);
2123 if (buf == NULL)
2124 return -1;
2125 buf[0] = '"';
2126 os_memcpy(buf + 1, value, len);
2127 buf[len + 1] = '"';
2128 buf[len + 2] = '\0';
2129 ret = wpa_config_set(ssid, var, buf, 0);
2130 os_free(buf);
2131 return ret;
2132}
2133
2134
3d3d3056
WS		 2135/**
2136 * wpa_config_get_all - Get all options from network configuration
2137 * @ssid: Pointer to network configuration data
2138 * @get_keys: Determines if keys/passwords will be included in returned list
d1c8ac88 2139 * (if they may be exported)
3d3d3056
WS		 2140 * Returns: %NULL terminated list of all set keys and their values in the form
2141 * of [key1, val1, key2, val2, ... , NULL]
2142 *
2143 * This function can be used to get list of all configured network properties.
2144 * The caller is responsible for freeing the returned list and all its
2145 * elements.
2146 */
2147char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2148{
2149 const struct parse_data *field;
2150 char *key, *value;
2151 size_t i;
2152 char **props;
2153 int fields_num;
2154
d1c8ac88
JB		 2155 get_keys = get_keys && ssid->export_keys;
2156
f9884c09 2157 props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
3d3d3056
WS		 2158 if (!props)
2159 return NULL;
2160
2161 fields_num = 0;
2162 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2163 field = &ssid_fields[i];
2164 if (field->key_data && !get_keys)
2165 continue;
2166 value = field->writer(field, ssid);
04746865 2167 if (value == NULL)
3d3d3056 2168 continue;
04746865
JM		 2169 if (os_strlen(value) == 0) {
2170 os_free(value);
2171 continue;
2172 }
3d3d3056
WS		 2173
2174 key = os_strdup(field->name);
04746865
JM		 2175 if (key == NULL) {
2176 os_free(value);
3d3d3056 2177 goto err;
04746865 2178 }
3d3d3056
WS		 2179
2180 props[fields_num * 2] = key;
2181 props[fields_num * 2 + 1] = value;
2182
2183 fields_num++;
2184 }
2185
2186 return props;
2187
2188err:
2189 value = *props;
2190 while (value)
2191 os_free(value++);
2192 os_free(props);
2193 return NULL;
2194}
2195
2196
6fc6879b
JM		 2197#ifndef NO_CONFIG_WRITE
2198/**
2199 * wpa_config_get - Get a variable in network configuration
2200 * @ssid: Pointer to network configuration data
2201 * @var: Variable name, e.g., "ssid"
2202 * Returns: Value of the variable or %NULL on failure
2203 *
2204 * This function can be used to get network configuration variables. The
2205 * returned value is a copy of the configuration variable in text format, i.e,.
2206 * the same format that the text-based configuration file and wpa_config_set()
2207 * are using for the value. The caller is responsible for freeing the returned
2208 * value.
2209 */
2210char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2211{
2212 size_t i;
2213
2214 if (ssid == NULL || var == NULL)
2215 return NULL;
2216
2217 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2218 const struct parse_data *field = &ssid_fields[i];
2219 if (os_strcmp(var, field->name) == 0)
2220 return field->writer(field, ssid);
2221 }
2222
2223 return NULL;
2224}
2225
2226
2227/**
2228 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2229 * @ssid: Pointer to network configuration data
2230 * @var: Variable name, e.g., "ssid"
2231 * Returns: Value of the variable or %NULL on failure
2232 *
2233 * This function can be used to get network configuration variable like
2234 * wpa_config_get(). The only difference is that this functions does not expose
2235 * key/password material from the configuration. In case a key/password field
2236 * is requested, the returned value is an empty string or %NULL if the variable
2237 * is not set or "*" if the variable is set (regardless of its value). The
2238 * returned value is a copy of the configuration variable in text format, i.e,.
2239 * the same format that the text-based configuration file and wpa_config_set()
2240 * are using for the value. The caller is responsible for freeing the returned
2241 * value.
2242 */
2243char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2244{
2245 size_t i;
2246
2247 if (ssid == NULL || var == NULL)
2248 return NULL;
2249
2250 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2251 const struct parse_data *field = &ssid_fields[i];
2252 if (os_strcmp(var, field->name) == 0) {
2253 char *res = field->writer(field, ssid);
2254 if (field->key_data) {
2255 if (res && res[0]) {
2256 wpa_printf(MSG_DEBUG, "Do not allow "
2257 "key_data field to be "
2258 "exposed");
2259 os_free(res);
2260 return os_strdup("*");
2261 }
2262
2263 os_free(res);
2264 return NULL;
2265 }
2266 return res;
2267 }
2268 }
2269
2270 return NULL;
2271}
2272#endif /* NO_CONFIG_WRITE */
2273
2274
2275/**
2276 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2277 * @ssid: Pointer to network configuration data
2278 *
2279 * This function must be called to update WPA PSK when either SSID or the
2280 * passphrase has changed for the network configuration.
2281 */
2282void wpa_config_update_psk(struct wpa_ssid *ssid)
2283{
2284#ifndef CONFIG_NO_PBKDF2
986de33d 2285 pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
6fc6879b
JM		 2286 ssid->psk, PMK_LEN);
2287 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2288 ssid->psk, PMK_LEN);
2289 ssid->psk_set = 1;
2290#endif /* CONFIG_NO_PBKDF2 */
2291}
2292
2293
1bb7b8e8
JM		 2294int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2295 const char *value, int line)
2296{
2297 char *val;
2298 size_t len;
2299
1a712d2f
JM		 2300 if (os_strcmp(var, "priority") == 0) {
2301 cred->priority = atoi(value);
2302 return 0;
2303 }
2304
d7b01abd
JM		 2305 if (os_strcmp(var, "pcsc") == 0) {
2306 cred->pcsc = atoi(value);
2307 return 0;
2308 }
2309
8ca93c59
JM		 2310 if (os_strcmp(var, "eap") == 0) {
2311 struct eap_method_type method;
2312 method.method = eap_peer_get_type(value, &method.vendor);
2313 if (method.vendor == EAP_VENDOR_IETF &&
2314 method.method == EAP_TYPE_NONE) {
2315 wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2316 "for a credential", line, value);
2317 return -1;
2318 }
2319 os_free(cred->eap_method);
2320 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2321 if (cred->eap_method == NULL)
2322 return -1;
2323 os_memcpy(cred->eap_method, &method, sizeof(method));
2324 return 0;
2325 }
2326
02af9c90
JM		 2327 if (os_strcmp(var, "password") == 0 &&
2328 os_strncmp(value, "ext:", 4) == 0) {
2329 os_free(cred->password);
2330 cred->password = os_strdup(value);
2331 cred->ext_password = 1;
2332 return 0;
2333 }
2334
1bb7b8e8 2335 val = wpa_config_parse_string(value, &len);
7d86e537
JM		 2336 if (val == NULL) {
2337 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2338 "value '%s'.", line, var, value);
1bb7b8e8 2339 return -1;
7d86e537 2340 }
1bb7b8e8
JM		 2341
2342 if (os_strcmp(var, "realm") == 0) {
2343 os_free(cred->realm);
2344 cred->realm = val;
2345 return 0;
2346 }
2347
2348 if (os_strcmp(var, "username") == 0) {
2349 os_free(cred->username);
2350 cred->username = val;
2351 return 0;
2352 }
2353
2354 if (os_strcmp(var, "password") == 0) {
2355 os_free(cred->password);
2356 cred->password = val;
02af9c90 2357 cred->ext_password = 0;
1bb7b8e8
JM		 2358 return 0;
2359 }
2360
2361 if (os_strcmp(var, "ca_cert") == 0) {
2362 os_free(cred->ca_cert);
2363 cred->ca_cert = val;
2364 return 0;
2365 }
2366
11e4f46a
JM		 2367 if (os_strcmp(var, "client_cert") == 0) {
2368 os_free(cred->client_cert);
2369 cred->client_cert = val;
2370 return 0;
2371 }
2372
2373 if (os_strcmp(var, "private_key") == 0) {
2374 os_free(cred->private_key);
2375 cred->private_key = val;
2376 return 0;
2377 }
2378
2379 if (os_strcmp(var, "private_key_passwd") == 0) {
2380 os_free(cred->private_key_passwd);
2381 cred->private_key_passwd = val;
2382 return 0;
2383 }
2384
1bb7b8e8
JM		 2385 if (os_strcmp(var, "imsi") == 0) {
2386 os_free(cred->imsi);
2387 cred->imsi = val;
2388 return 0;
2389 }
2390
2391 if (os_strcmp(var, "milenage") == 0) {
2392 os_free(cred->milenage);
2393 cred->milenage = val;
2394 return 0;
2395 }
2396
2397 if (os_strcmp(var, "domain") == 0) {
2398 os_free(cred->domain);
2399 cred->domain = val;
2400 return 0;
2401 }
2402
8ca93c59
JM		 2403 if (os_strcmp(var, "phase1") == 0) {
2404 os_free(cred->phase1);
2405 cred->phase1 = val;
2406 return 0;
2407 }
2408
2409 if (os_strcmp(var, "phase2") == 0) {
2410 os_free(cred->phase2);
2411 cred->phase2 = val;
2412 return 0;
2413 }
2414
955567bc
JM		 2415 if (os_strcmp(var, "roaming_consortium") == 0) {
2416 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2417 wpa_printf(MSG_ERROR, "Line %d: invalid "
2418 "roaming_consortium length %d (3..15 "
2419 "expected)", line, (int) len);
2420 os_free(val);
2421 return -1;
2422 }
2423 os_memcpy(cred->roaming_consortium, val, len);
2424 cred->roaming_consortium_len = len;
2425 os_free(val);
2426 return 0;
2427 }
2428
dbea8ac7
JM		 2429 if (os_strcmp(var, "excluded_ssid") == 0) {
2430 struct excluded_ssid *e;
2431
2432 if (len > MAX_SSID_LEN) {
2433 wpa_printf(MSG_ERROR, "Line %d: invalid "
2434 "excluded_ssid length %d", line, (int) len);
2435 os_free(val);
2436 return -1;
2437 }
2438
2439 e = os_realloc_array(cred->excluded_ssid,
2440 cred->num_excluded_ssid + 1,
2441 sizeof(struct excluded_ssid));
2442 if (e == NULL) {
2443 os_free(val);
2444 return -1;
2445 }
2446 cred->excluded_ssid = e;
2447
2448 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2449 os_memcpy(e->ssid, val, len);
2450 e->ssid_len = len;
2451
2452 os_free(val);
2453
2454 return 0;
2455 }
2456
1bb7b8e8
JM		 2457 if (line) {
2458 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2459 line, var);
2460 }
2461
f4b2d69b
JM		 2462 os_free(val);
2463
1bb7b8e8
JM		 2464 return -1;
2465}
2466
2467
d94c9ee6
JM		 2468struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
2469{
2470 struct wpa_cred *cred;
2471
2472 cred = config->cred;
2473 while (cred) {
2474 if (id == cred->id)
2475 break;
2476 cred = cred->next;
2477 }
2478
2479 return cred;
2480}
2481
2482
2483struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
2484{
2485 int id;
2486 struct wpa_cred *cred, *last = NULL;
2487
2488 id = -1;
2489 cred = config->cred;
2490 while (cred) {
2491 if (cred->id > id)
2492 id = cred->id;
2493 last = cred;
2494 cred = cred->next;
2495 }
2496 id++;
2497
2498 cred = os_zalloc(sizeof(*cred));
2499 if (cred == NULL)
2500 return NULL;
2501 cred->id = id;
2502 if (last)
2503 last->next = cred;
2504 else
2505 config->cred = cred;
2506
2507 return cred;
2508}
2509
2510
2511int wpa_config_remove_cred(struct wpa_config *config, int id)
2512{
2513 struct wpa_cred *cred, *prev = NULL;
2514
2515 cred = config->cred;
2516 while (cred) {
2517 if (id == cred->id)
2518 break;
2519 prev = cred;
2520 cred = cred->next;
2521 }
2522
2523 if (cred == NULL)
2524 return -1;
2525
2526 if (prev)
2527 prev->next = cred->next;
2528 else
2529 config->cred = cred->next;
2530
2531 wpa_config_free_cred(cred);
2532 return 0;
2533}
2534
2535
6fc6879b
JM		 2536#ifndef CONFIG_NO_CONFIG_BLOBS
2537/**
2538 * wpa_config_get_blob - Get a named configuration blob
2539 * @config: Configuration data from wpa_config_read()
2540 * @name: Name of the blob
2541 * Returns: Pointer to blob data or %NULL if not found
2542 */
2543const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
2544 const char *name)
2545{
2546 struct wpa_config_blob *blob = config->blobs;
2547
2548 while (blob) {
2549 if (os_strcmp(blob->name, name) == 0)
2550 return blob;
2551 blob = blob->next;
2552 }
2553 return NULL;
2554}
2555
2556
2557/**
2558 * wpa_config_set_blob - Set or add a named configuration blob
2559 * @config: Configuration data from wpa_config_read()
2560 * @blob: New value for the blob
2561 *
2562 * Adds a new configuration blob or replaces the current value of an existing
2563 * blob.
2564 */
2565void wpa_config_set_blob(struct wpa_config *config,
2566 struct wpa_config_blob *blob)
2567{
2568 wpa_config_remove_blob(config, blob->name);
2569 blob->next = config->blobs;
2570 config->blobs = blob;
2571}
2572
2573
2574/**
2575 * wpa_config_free_blob - Free blob data
2576 * @blob: Pointer to blob to be freed
2577 */
2578void wpa_config_free_blob(struct wpa_config_blob *blob)
2579{
2580 if (blob) {
2581 os_free(blob->name);
2582 os_free(blob->data);
2583 os_free(blob);
2584 }
2585}
2586
2587
2588/**
2589 * wpa_config_remove_blob - Remove a named configuration blob
2590 * @config: Configuration data from wpa_config_read()
2591 * @name: Name of the blob to remove
2592 * Returns: 0 if blob was removed or -1 if blob was not found
2593 */
2594int wpa_config_remove_blob(struct wpa_config *config, const char *name)
2595{
2596 struct wpa_config_blob *pos = config->blobs, *prev = NULL;
2597
2598 while (pos) {
2599 if (os_strcmp(pos->name, name) == 0) {
2600 if (prev)
2601 prev->next = pos->next;
2602 else
2603 config->blobs = pos->next;
2604 wpa_config_free_blob(pos);
2605 return 0;
2606 }
2607 prev = pos;
2608 pos = pos->next;
2609 }
2610
2611 return -1;
2612}
2613#endif /* CONFIG_NO_CONFIG_BLOBS */
2614
2615
2616/**
2617 * wpa_config_alloc_empty - Allocate an empty configuration
2618 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
2619 * socket
2620 * @driver_param: Driver parameters
2621 * Returns: Pointer to allocated configuration data or %NULL on failure
2622 */
2623struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
2624 const char *driver_param)
2625{
2626 struct wpa_config *config;
c26effe1
YD		 2627 const int aCWmin = 4, aCWmax = 10;
2628 const struct hostapd_wmm_ac_params ac_bk =
2629 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
2630 const struct hostapd_wmm_ac_params ac_be =
2631 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
2632 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
623ecdd5 2633 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
c26effe1 2634 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
623ecdd5 2635 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
6fc6879b
JM		 2636
2637 config = os_zalloc(sizeof(*config));
2638 if (config == NULL)
2639 return NULL;
2640 config->eapol_version = DEFAULT_EAPOL_VERSION;
2641 config->ap_scan = DEFAULT_AP_SCAN;
2642 config->fast_reauth = DEFAULT_FAST_REAUTH;
e3768e7c 2643 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
0f66abd2 2644 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
462a7439 2645 config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
c9c38b09 2646 config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
78633c37
SL		 2647 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
2648 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
dae608d5 2649 config->max_num_sta = DEFAULT_MAX_NUM_STA;
11540c0b 2650 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
6124e858 2651 config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
c26effe1
YD		 2652 config->wmm_ac_params[0] = ac_be;
2653 config->wmm_ac_params[1] = ac_bk;
2654 config->wmm_ac_params[2] = ac_vi;
2655 config->wmm_ac_params[3] = ac_vo;
6fc6879b
JM		 2656
2657 if (ctrl_interface)
2658 config->ctrl_interface = os_strdup(ctrl_interface);
2659 if (driver_param)
2660 config->driver_param = os_strdup(driver_param);
2661
2662 return config;
2663}
2664
2665
2666#ifndef CONFIG_NO_STDOUT_DEBUG
2667/**
2668 * wpa_config_debug_dump_networks - Debug dump of configured networks
2669 * @config: Configuration data from wpa_config_read()
2670 */
2671void wpa_config_debug_dump_networks(struct wpa_config *config)
2672{
2673 int prio;
2674 struct wpa_ssid *ssid;
2675
2676 for (prio = 0; prio < config->num_prio; prio++) {
2677 ssid = config->pssid[prio];
2678 wpa_printf(MSG_DEBUG, "Priority group %d",
2679 ssid->priority);
2680 while (ssid) {
2681 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
2682 ssid->id,
2683 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2684 ssid = ssid->pnext;
2685 }
2686 }
2687}
2688#endif /* CONFIG_NO_STDOUT_DEBUG */
121adf9c
JM		 2689
2690
2691struct global_parse_data {
2692 char *name;
2693 int (*parser)(const struct global_parse_data *data,
2694 struct wpa_config *config, int line, const char *value);
2695 void *param1, *param2, *param3;
1d47214a 2696 unsigned int changed_flag;
121adf9c
JM		 2697};
2698
2699
2700static int wpa_global_config_parse_int(const struct global_parse_data *data,
2701 struct wpa_config *config, int line,
2702 const char *pos)
2703{
eae3a584
JB		 2704 int val, *dst;
2705 char *end;
2706
121adf9c 2707 dst = (int *) (((u8 *) config) + (long) data->param1);
eae3a584
JB		 2708 val = strtol(pos, &end, 0);
2709 if (*end) {
2710 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
2711 line, pos);
2712 return -1;
2713 }
2714 *dst = val;
2715
121adf9c
JM		 2716 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
2717
2718 if (data->param2 && *dst < (long) data->param2) {
2719 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
2720 "min_value=%ld)", line, data->name, *dst,
2721 (long) data->param2);
2722 *dst = (long) data->param2;
2723 return -1;
2724 }
2725
2726 if (data->param3 && *dst > (long) data->param3) {
2727 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
2728 "max_value=%ld)", line, data->name, *dst,
2729 (long) data->param3);
2730 *dst = (long) data->param3;
2731 return -1;
2732 }
2733
2734 return 0;
2735}
2736
2737
2738static int wpa_global_config_parse_str(const struct global_parse_data *data,
2739 struct wpa_config *config, int line,
2740 const char *pos)
2741{
2742 size_t len;
2743 char **dst, *tmp;
2744
2745 len = os_strlen(pos);
2746 if (data->param2 && len < (size_t) data->param2) {
2747 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
2748 "min_len=%ld)", line, data->name,
2749 (unsigned long) len, (long) data->param2);
2750 return -1;
2751 }
2752
2753 if (data->param3 && len > (size_t) data->param3) {
2754 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
2755 "max_len=%ld)", line, data->name,
2756 (unsigned long) len, (long) data->param3);
2757 return -1;
2758 }
2759
2760 tmp = os_strdup(pos);
2761 if (tmp == NULL)
2762 return -1;
2763
2764 dst = (char **) (((u8 *) config) + (long) data->param1);
2765 os_free(*dst);
2766 *dst = tmp;
2767 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
2768
2769 return 0;
2770}
2771
2772
3f2c8ba6
JM		 2773static int wpa_global_config_parse_bin(const struct global_parse_data *data,
2774 struct wpa_config *config, int line,
2775 const char *pos)
2776{
2777 size_t len;
2778 struct wpabuf **dst, *tmp;
2779
2780 len = os_strlen(pos);
2781 if (len & 0x01)
2782 return -1;
2783
2784 tmp = wpabuf_alloc(len / 2);
2785 if (tmp == NULL)
2786 return -1;
2787
2788 if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
2789 wpabuf_free(tmp);
2790 return -1;
2791 }
2792
2793 dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
2794 wpabuf_free(*dst);
2795 *dst = tmp;
2796 wpa_printf(MSG_DEBUG, "%s", data->name);
2797
2798 return 0;
2799}
2800
2801
f5ffc348
BG		 2802static int wpa_config_process_freq_list(const struct global_parse_data *data,
2803 struct wpa_config *config, int line,
2804 const char *value)
2805{
2806 int *freqs;
2807
2808 freqs = wpa_config_parse_int_array(value);
2809 if (freqs == NULL)
2810 return -1;
2811 os_free(config->freq_list);
2812 config->freq_list = freqs;
2813 return 0;
2814}
2815
2816
121adf9c
JM		 2817static int wpa_config_process_country(const struct global_parse_data *data,
2818 struct wpa_config *config, int line,
2819 const char *pos)
2820{
2821 if (!pos[0] || !pos[1]) {
2822 wpa_printf(MSG_DEBUG, "Invalid country set");
2823 return -1;
2824 }
2825 config->country[0] = pos[0];
2826 config->country[1] = pos[1];
2827 wpa_printf(MSG_DEBUG, "country='%c%c'",
2828 config->country[0], config->country[1]);
2829 return 0;
2830}
2831
2832
2833static int wpa_config_process_load_dynamic_eap(
2834 const struct global_parse_data *data, struct wpa_config *config,
2835 int line, const char *so)
2836{
2837 int ret;
2838 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
2839 ret = eap_peer_method_load(so);
2840 if (ret == -2) {
2841 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
2842 "reloading.");
2843 } else if (ret) {
2844 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
2845 "method '%s'.", line, so);
2846 return -1;
2847 }
2848
2849 return 0;
2850}
2851
2852
2853#ifdef CONFIG_WPS
2854
2855static int wpa_config_process_uuid(const struct global_parse_data *data,
2856 struct wpa_config *config, int line,
2857 const char *pos)
2858{
2859 char buf[40];
2860 if (uuid_str2bin(pos, config->uuid)) {
2861 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
2862 return -1;
2863 }
2864 uuid_bin2str(config->uuid, buf, sizeof(buf));
2865 wpa_printf(MSG_DEBUG, "uuid=%s", buf);
2866 return 0;
2867}
2868
2869
2f646b6e
JB		 2870static int wpa_config_process_device_type(
2871 const struct global_parse_data *data,
2872 struct wpa_config *config, int line, const char *pos)
2873{
2874 return wps_dev_type_str2bin(pos, config->device_type);
2875}
2876
2877
121adf9c
JM		 2878static int wpa_config_process_os_version(const struct global_parse_data *data,
2879 struct wpa_config *config, int line,
2880 const char *pos)
2881{
2882 if (hexstr2bin(pos, config->os_version, 4)) {
2883 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
2884 return -1;
2885 }
2886 wpa_printf(MSG_DEBUG, "os_version=%08x",
2887 WPA_GET_BE32(config->os_version));
2888 return 0;
2889}
2890
71dd3b78
AS		 2891
2892static int wpa_config_process_wps_vendor_ext_m1(
2893 const struct global_parse_data *data,
2894 struct wpa_config *config, int line, const char *pos)
2895{
2896 struct wpabuf *tmp;
2897 int len = os_strlen(pos) / 2;
2898 u8 *p;
2899
2900 if (!len) {
2901 wpa_printf(MSG_ERROR, "Line %d: "
2902 "invalid wps_vendor_ext_m1", line);
2903 return -1;
2904 }
2905
2906 tmp = wpabuf_alloc(len);
2907 if (tmp) {
2908 p = wpabuf_put(tmp, len);
2909
2910 if (hexstr2bin(pos, p, len)) {
2911 wpa_printf(MSG_ERROR, "Line %d: "
2912 "invalid wps_vendor_ext_m1", line);
2913 wpabuf_free(tmp);
2914 return -1;
2915 }
2916
2917 wpabuf_free(config->wps_vendor_ext_m1);
2918 config->wps_vendor_ext_m1 = tmp;
2919 } else {
2920 wpa_printf(MSG_ERROR, "Can not allocate "
2921 "memory for wps_vendor_ext_m1");
2922 return -1;
2923 }
2924
2925 return 0;
2926}
2927
121adf9c
JM		 2928#endif /* CONFIG_WPS */
2929
e3768e7c
JM		 2930#ifdef CONFIG_P2P
2931static int wpa_config_process_sec_device_type(
2932 const struct global_parse_data *data,
2933 struct wpa_config *config, int line, const char *pos)
2934{
2935 int idx;
2936
2f646b6e 2937 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
e3768e7c
JM		 2938 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
2939 "items", line);
2940 return -1;
2941 }
2942
2f646b6e
JB		 2943 idx = config->num_sec_device_types;
2944
2945 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
e3768e7c 2946 return -1;
2f646b6e
JB		 2947
2948 config->num_sec_device_types++;
e3768e7c
JM		 2949 return 0;
2950}
21d996f7
JM		 2951
2952
2953static int wpa_config_process_p2p_pref_chan(
2954 const struct global_parse_data *data,
2955 struct wpa_config *config, int line, const char *pos)
2956{
2957 struct p2p_channel *pref = NULL, *n;
2958 unsigned int num = 0;
2959 const char *pos2;
2960 u8 op_class, chan;
2961
2962 /* format: class:chan,class:chan,... */
2963
2964 while (*pos) {
2965 op_class = atoi(pos);
2966 pos2 = os_strchr(pos, ':');
2967 if (pos2 == NULL)
2968 goto fail;
2969 pos2++;
2970 chan = atoi(pos2);
2971
067ffa26
JM		 2972 n = os_realloc_array(pref, num + 1,
2973 sizeof(struct p2p_channel));
21d996f7
JM		 2974 if (n == NULL)
2975 goto fail;
2976 pref = n;
2977 pref[num].op_class = op_class;
2978 pref[num].chan = chan;
2979 num++;
2980
2981 pos = os_strchr(pos2, ',');
2982 if (pos == NULL)
2983 break;
2984 pos++;
2985 }
2986
2987 os_free(config->p2p_pref_chan);
2988 config->p2p_pref_chan = pref;
2989 config->num_p2p_pref_chan = num;
2990 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
2991 (u8 *) config->p2p_pref_chan,
2992 config->num_p2p_pref_chan * sizeof(struct p2p_channel));
2993
2994 return 0;
2995
2996fail:
2997 os_free(pref);
2998 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
2999 return -1;
3000}
e3768e7c
JM		 3001#endif /* CONFIG_P2P */
3002
121adf9c 3003
46ee0427
JM		 3004static int wpa_config_process_hessid(
3005 const struct global_parse_data *data,
3006 struct wpa_config *config, int line, const char *pos)
3007{
3008 if (hwaddr_aton2(pos, config->hessid) < 0) {
3009 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3010 line, pos);
3011 return -1;
3012 }
3013
3014 return 0;
3015}
3016
3017
625f202a
JM		 3018static int wpa_config_process_sae_groups(
3019 const struct global_parse_data *data,
3020 struct wpa_config *config, int line, const char *pos)
3021{
3022 int *groups = wpa_config_parse_int_array(pos);
3023 if (groups == NULL) {
3024 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3025 line, pos);
3026 return -1;
3027 }
3028
3029 os_free(config->sae_groups);
3030 config->sae_groups = groups;
3031
3032 return 0;
3033}
3034
3035
18a2eaab
JM		 3036static int wpa_config_process_ap_vendor_elements(
3037 const struct global_parse_data *data,
3038 struct wpa_config *config, int line, const char *pos)
3039{
3040 struct wpabuf *tmp;
3041 int len = os_strlen(pos) / 2;
3042 u8 *p;
3043
3044 if (!len) {
3045 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3046 line);
3047 return -1;
3048 }
3049
3050 tmp = wpabuf_alloc(len);
3051 if (tmp) {
3052 p = wpabuf_put(tmp, len);
3053
3054 if (hexstr2bin(pos, p, len)) {
3055 wpa_printf(MSG_ERROR, "Line %d: invalid "
3056 "ap_vendor_elements", line);
3057 wpabuf_free(tmp);
3058 return -1;
3059 }
3060
3061 wpabuf_free(config->ap_vendor_elements);
3062 config->ap_vendor_elements = tmp;
3063 } else {
3064 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3065 "ap_vendor_elements");
3066 return -1;
3067 }
3068
3069 return 0;
3070}
3071
3072
121adf9c
JM		 3073#ifdef OFFSET
3074#undef OFFSET
3075#endif /* OFFSET */
3076/* OFFSET: Get offset of a variable within the wpa_config structure */
3077#define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
3078
3079#define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
3080#define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
3081#define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
3082#define INT(f) _INT(f), NULL, NULL
3083#define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
3084#define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
3085#define STR(f) _STR(f), NULL, NULL
3086#define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
3f2c8ba6 3087#define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
121adf9c
JM		 3088
3089static const struct global_parse_data global_fields[] = {
3090#ifdef CONFIG_CTRL_IFACE
1d47214a
JM		 3091 { STR(ctrl_interface), 0 },
3092 { STR(ctrl_interface_group), 0 } /* deprecated */,
121adf9c 3093#endif /* CONFIG_CTRL_IFACE */
1d47214a
JM		 3094 { INT_RANGE(eapol_version, 1, 2), 0 },
3095 { INT(ap_scan), 0 },
54ddd743 3096 { INT(disable_scan_offload), 0 },
1d47214a
JM		 3097 { INT(fast_reauth), 0 },
3098 { STR(opensc_engine_path), 0 },
3099 { STR(pkcs11_engine_path), 0 },
3100 { STR(pkcs11_module_path), 0 },
f64adcd7
JM		 3101 { STR(pcsc_reader), 0 },
3102 { STR(pcsc_pin), 0 },
1d47214a
JM		 3103 { STR(driver_param), 0 },
3104 { INT(dot11RSNAConfigPMKLifetime), 0 },
3105 { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
3106 { INT(dot11RSNAConfigSATimeout), 0 },
121adf9c 3107#ifndef CONFIG_NO_CONFIG_WRITE
1d47214a 3108 { INT(update_config), 0 },
121adf9c 3109#endif /* CONFIG_NO_CONFIG_WRITE */
1d47214a 3110 { FUNC_NO_VAR(load_dynamic_eap), 0 },
121adf9c 3111#ifdef CONFIG_WPS
1d47214a
JM		 3112 { FUNC(uuid), CFG_CHANGED_UUID },
3113 { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
1c9cb49f
JM		 3114 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
3115 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
3116 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
3117 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
2f646b6e 3118 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
1d47214a
JM		 3119 { FUNC(os_version), CFG_CHANGED_OS_VERSION },
3120 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
3121 { INT_RANGE(wps_cred_processing, 0, 2), 0 },
71dd3b78 3122 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
121adf9c 3123#endif /* CONFIG_WPS */
e3768e7c
JM		 3124#ifdef CONFIG_P2P
3125 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
3126 { INT(p2p_listen_reg_class), 0 },
3127 { INT(p2p_listen_channel), 0 },
3128 { INT(p2p_oper_reg_class), 0 },
3129 { INT(p2p_oper_channel), 0 },
3130 { INT_RANGE(p2p_go_intent, 0, 15), 0 },
3131 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
3132 { INT_RANGE(persistent_reconnect, 0, 1), 0 },
0f66abd2 3133 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
3071e181 3134 { INT(p2p_group_idle), 0 },
21d996f7 3135 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
a93a15bb 3136 { INT(p2p_go_ht40), 0 },
7a808c7e 3137 { INT(p2p_disabled), 0 },
d76cd41a 3138 { INT(p2p_no_group_iface), 0 },
b277a2be 3139 { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
e3768e7c 3140#endif /* CONFIG_P2P */
1d47214a
JM		 3141 { FUNC(country), CFG_CHANGED_COUNTRY },
3142 { INT(bss_max_count), 0 },
78633c37
SL		 3143 { INT(bss_expiration_age), 0 },
3144 { INT(bss_expiration_scan_count), 0 },
dae608d5 3145 { INT_RANGE(filter_ssids, 0, 1), 0 },
bf8d6d24 3146 { INT_RANGE(filter_rssi, -100, 0), 0 },
0d7e5a3a 3147 { INT(max_num_sta), 0 },
46ee0427 3148 { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
66aadbd7
JK		 3149#ifdef CONFIG_HS20
3150 { INT_RANGE(hs20, 0, 1), 0 },
3151#endif /* CONFIG_HS20 */
46ee0427 3152 { INT_RANGE(interworking, 0, 1), 0 },
11540c0b 3153 { FUNC(hessid), 0 },
1298c145 3154 { INT_RANGE(access_network_type, 0, 15), 0 },
b0786fba 3155 { INT_RANGE(pbc_in_m1, 0, 1), 0 },
3f2c8ba6 3156 { STR(autoscan), 0 },
042ec551
JM		 3157 { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
3158 CFG_CHANGED_NFC_PASSWORD_TOKEN },
3159 { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3160 { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3161 { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
462a7439
ES		 3162 { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
3163 { INT(p2p_go_max_inactivity), 0 },
4d5bda5f 3164 { INT_RANGE(auto_interworking, 0, 1), 0 },
6e202021 3165 { INT(okc), 0 },
62d49803 3166 { INT(pmf), 0 },
625f202a 3167 { FUNC(sae_groups), 0 },
18206e02
JM		 3168 { INT(dtim_period), 0 },
3169 { INT(beacon_int), 0 },
18a2eaab 3170 { FUNC(ap_vendor_elements), 0 },
4342326f 3171 { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
f5ffc348 3172 { FUNC(freq_list), 0 },
6124e858 3173 { INT(scan_cur_freq), 0 },
4aa81868 3174 { INT(sched_scan_interval), 0 },
121adf9c
JM		 3175};
3176
3177#undef FUNC
3178#undef _INT
3179#undef INT
3180#undef INT_RANGE
3181#undef _STR
3182#undef STR
3183#undef STR_RANGE
3f2c8ba6 3184#undef BIN
121adf9c
JM		 3185#define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0]))
3186
3187
3188int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
3189{
3190 size_t i;
3191 int ret = 0;
3192
3193 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
3194 const struct global_parse_data *field = &global_fields[i];
3195 size_t flen = os_strlen(field->name);
3196 if (os_strncmp(pos, field->name, flen) != 0 ||
3197 pos[flen] != '=')
3198 continue;
3199
3200 if (field->parser(field, config, line, pos + flen + 1)) {
3201 wpa_printf(MSG_ERROR, "Line %d: failed to "
3202 "parse '%s'.", line, pos);
3203 ret = -1;
3204 }
042ec551
JM		 3205 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
3206 config->wps_nfc_pw_from_config = 1;
1d47214a 3207 config->changed_parameters |= field->changed_flag;
121adf9c
JM		 3208 break;
3209 }
3210 if (i == NUM_GLOBAL_FIELDS) {
c26effe1
YD		 3211#ifdef CONFIG_AP
3212 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
3213 char *tmp = os_strchr(pos, '=');
3214 if (tmp == NULL) {
3215 if (line < 0)
3216 return -1;
3217 wpa_printf(MSG_ERROR, "Line %d: invalid line "
3218 "'%s'", line, pos);
3219 return -1;
3220 }
3221 *tmp++ = '\0';
3222 if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
3223 tmp)) {
3224 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
3225 "AC item", line);
3226 return -1;
3227 }
3228 }
3229#endif /* CONFIG_AP */
1d47214a
JM		 3230 if (line < 0)
3231 return -1;
121adf9c
JM		 3232 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
3233 line, pos);
3234 ret = -1;
3235 }
3236
3237 return ret;
3238}
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