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Use os_zalloc() instead of os_malloc() + os_memset()
[thirdparty/hostap.git] / wpa_supplicant / config.c
CommitLineData
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);
325 ssid->passphrase = os_malloc(len + 1);
326 if (ssid->passphrase == NULL)
327 return -1;
328 os_memcpy(ssid->passphrase, value, len);
329 ssid->passphrase[len] = '\0';
330 return 0;
331#else /* CONFIG_NO_PBKDF2 */
332 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
333 "supported.", line);
334 return -1;
335#endif /* CONFIG_NO_PBKDF2 */
336 }
337
338 if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
339 value[PMK_LEN * 2] != '\0') {
340 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
341 line, value);
342 return -1;
343 }
344
345 os_free(ssid->passphrase);
346 ssid->passphrase = NULL;
347
348 ssid->psk_set = 1;
349 wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
350 return 0;
351}
352
353
354#ifndef NO_CONFIG_WRITE
355static char * wpa_config_write_psk(const struct parse_data *data,
356 struct wpa_ssid *ssid)
357{
9173b16f
JM		 358#ifdef CONFIG_EXT_PASSWORD
359 if (ssid->ext_psk) {
360 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
361 char *buf = os_malloc(len);
362 if (buf == NULL)
363 return NULL;
364 os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
365 return buf;
366 }
367#endif /* CONFIG_EXT_PASSWORD */
368
6fc6879b
JM		 369 if (ssid->passphrase)
370 return wpa_config_write_string_ascii(
371 (const u8 *) ssid->passphrase,
372 os_strlen(ssid->passphrase));
373
374 if (ssid->psk_set)
375 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
376
377 return NULL;
378}
379#endif /* NO_CONFIG_WRITE */
380
381
382static int wpa_config_parse_proto(const struct parse_data *data,
383 struct wpa_ssid *ssid, int line,
384 const char *value)
385{
386 int val = 0, last, errors = 0;
387 char *start, *end, *buf;
388
389 buf = os_strdup(value);
390 if (buf == NULL)
391 return -1;
392 start = buf;
393
394 while (*start != '\0') {
395 while (*start == ' ' || *start == '\t')
396 start++;
397 if (*start == '\0')
398 break;
399 end = start;
400 while (*end != ' ' && *end != '\t' && *end != '\0')
401 end++;
402 last = *end == '\0';
403 *end = '\0';
404 if (os_strcmp(start, "WPA") == 0)
405 val |= WPA_PROTO_WPA;
406 else if (os_strcmp(start, "RSN") == 0 ||
407 os_strcmp(start, "WPA2") == 0)
408 val |= WPA_PROTO_RSN;
409 else {
410 wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
411 line, start);
412 errors++;
413 }
414
415 if (last)
416 break;
417 start = end + 1;
418 }
419 os_free(buf);
420
421 if (val == 0) {
422 wpa_printf(MSG_ERROR,
423 "Line %d: no proto values configured.", line);
424 errors++;
425 }
426
427 wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
428 ssid->proto = val;
429 return errors ? -1 : 0;
430}
431
432
433#ifndef NO_CONFIG_WRITE
434static char * wpa_config_write_proto(const struct parse_data *data,
435 struct wpa_ssid *ssid)
436{
437 int first = 1, ret;
438 char *buf, *pos, *end;
439
440 pos = buf = os_zalloc(10);
441 if (buf == NULL)
442 return NULL;
443 end = buf + 10;
444
445 if (ssid->proto & WPA_PROTO_WPA) {
446 ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " ");
447 if (ret < 0 || ret >= end - pos)
448 return buf;
449 pos += ret;
450 first = 0;
451 }
452
453 if (ssid->proto & WPA_PROTO_RSN) {
454 ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " ");
455 if (ret < 0 || ret >= end - pos)
456 return buf;
457 pos += ret;
458 first = 0;
459 }
460
461 return buf;
462}
463#endif /* NO_CONFIG_WRITE */
464
465
466static int wpa_config_parse_key_mgmt(const struct parse_data *data,
467 struct wpa_ssid *ssid, int line,
468 const char *value)
469{
470 int val = 0, last, errors = 0;
471 char *start, *end, *buf;
472
473 buf = os_strdup(value);
474 if (buf == NULL)
475 return -1;
476 start = buf;
477
478 while (*start != '\0') {
479 while (*start == ' ' || *start == '\t')
480 start++;
481 if (*start == '\0')
482 break;
483 end = start;
484 while (*end != ' ' && *end != '\t' && *end != '\0')
485 end++;
486 last = *end == '\0';
487 *end = '\0';
488 if (os_strcmp(start, "WPA-PSK") == 0)
489 val |= WPA_KEY_MGMT_PSK;
490 else if (os_strcmp(start, "WPA-EAP") == 0)
491 val |= WPA_KEY_MGMT_IEEE8021X;
492 else if (os_strcmp(start, "IEEE8021X") == 0)
493 val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
494 else if (os_strcmp(start, "NONE") == 0)
495 val |= WPA_KEY_MGMT_NONE;
496 else if (os_strcmp(start, "WPA-NONE") == 0)
497 val |= WPA_KEY_MGMT_WPA_NONE;
498#ifdef CONFIG_IEEE80211R
499 else if (os_strcmp(start, "FT-PSK") == 0)
500 val |= WPA_KEY_MGMT_FT_PSK;
501 else if (os_strcmp(start, "FT-EAP") == 0)
502 val |= WPA_KEY_MGMT_FT_IEEE8021X;
503#endif /* CONFIG_IEEE80211R */
56586197
JM		 504#ifdef CONFIG_IEEE80211W
505 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
506 val |= WPA_KEY_MGMT_PSK_SHA256;
507 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
508 val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
509#endif /* CONFIG_IEEE80211W */
ad08c363
JM		 510#ifdef CONFIG_WPS
511 else if (os_strcmp(start, "WPS") == 0)
512 val |= WPA_KEY_MGMT_WPS;
513#endif /* CONFIG_WPS */
c10347f2
JM		 514#ifdef CONFIG_SAE
515 else if (os_strcmp(start, "SAE") == 0)
516 val |= WPA_KEY_MGMT_SAE;
517 else if (os_strcmp(start, "FT-SAE") == 0)
518 val |= WPA_KEY_MGMT_FT_SAE;
519#endif /* CONFIG_SAE */
6fc6879b
JM		 520 else {
521 wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
522 line, start);
523 errors++;
524 }
525
526 if (last)
527 break;
528 start = end + 1;
529 }
530 os_free(buf);
531
532 if (val == 0) {
533 wpa_printf(MSG_ERROR,
534 "Line %d: no key_mgmt values configured.", line);
535 errors++;
536 }
537
538 wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
539 ssid->key_mgmt = val;
540 return errors ? -1 : 0;
541}
542
543
544#ifndef NO_CONFIG_WRITE
545static char * wpa_config_write_key_mgmt(const struct parse_data *data,
546 struct wpa_ssid *ssid)
547{
548 char *buf, *pos, *end;
549 int ret;
550
551 pos = buf = os_zalloc(50);
552 if (buf == NULL)
553 return NULL;
554 end = buf + 50;
555
556 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
557 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
558 pos == buf ? "" : " ");
559 if (ret < 0 || ret >= end - pos) {
560 end[-1] = '\0';
561 return buf;
562 }
563 pos += ret;
564 }
565
566 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
567 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
568 pos == buf ? "" : " ");
569 if (ret < 0 || ret >= end - pos) {
570 end[-1] = '\0';
571 return buf;
572 }
573 pos += ret;
574 }
575
576 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
577 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
578 pos == buf ? "" : " ");
579 if (ret < 0 || ret >= end - pos) {
580 end[-1] = '\0';
581 return buf;
582 }
583 pos += ret;
584 }
585
586 if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
587 ret = os_snprintf(pos, end - pos, "%sNONE",
588 pos == buf ? "" : " ");
589 if (ret < 0 || ret >= end - pos) {
590 end[-1] = '\0';
591 return buf;
592 }
593 pos += ret;
594 }
595
596 if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
597 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
598 pos == buf ? "" : " ");
599 if (ret < 0 || ret >= end - pos) {
600 end[-1] = '\0';
601 return buf;
602 }
603 pos += ret;
604 }
605
606#ifdef CONFIG_IEEE80211R
607 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK)
608 pos += os_snprintf(pos, end - pos, "%sFT-PSK",
609 pos == buf ? "" : " ");
610
611 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
612 pos += os_snprintf(pos, end - pos, "%sFT-EAP",
613 pos == buf ? "" : " ");
614#endif /* CONFIG_IEEE80211R */
615
56586197
JM		 616#ifdef CONFIG_IEEE80211W
617 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
618 pos += os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
619 pos == buf ? "" : " ");
620
621 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
622 pos += os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
623 pos == buf ? "" : " ");
624#endif /* CONFIG_IEEE80211W */
625
728fae16
JM		 626#ifdef CONFIG_WPS
627 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
628 pos += os_snprintf(pos, end - pos, "%sWPS",
629 pos == buf ? "" : " ");
630#endif /* CONFIG_WPS */
631
6fc6879b
JM		 632 return buf;
633}
634#endif /* NO_CONFIG_WRITE */
635
636
637static int wpa_config_parse_cipher(int line, const char *value)
638{
a39c78be
JM		 639 int val = wpa_parse_cipher(value);
640 if (val < 0) {
641 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
642 line, value);
6fc6879b 643 return -1;
6fc6879b 644 }
6fc6879b
JM		 645 if (val == 0) {
646 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
647 line);
648 return -1;
649 }
650 return val;
651}
652
653
654#ifndef NO_CONFIG_WRITE
655static char * wpa_config_write_cipher(int cipher)
656{
0282a8c4 657 char *buf = os_zalloc(50);
6fc6879b
JM		 658 if (buf == NULL)
659 return NULL;
6fc6879b 660
0282a8c4
JM		 661 if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
662 os_free(buf);
663 return NULL;
6fc6879b
JM		 664 }
665
666 return buf;
667}
668#endif /* NO_CONFIG_WRITE */
669
670
671static int wpa_config_parse_pairwise(const struct parse_data *data,
672 struct wpa_ssid *ssid, int line,
673 const char *value)
674{
675 int val;
676 val = wpa_config_parse_cipher(line, value);
677 if (val == -1)
678 return -1;
03145326 679 if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
6fc6879b
JM		 680 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
681 "(0x%x).", line, val);
682 return -1;
683 }
684
685 wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
686 ssid->pairwise_cipher = val;
687 return 0;
688}
689
690
691#ifndef NO_CONFIG_WRITE
692static char * wpa_config_write_pairwise(const struct parse_data *data,
693 struct wpa_ssid *ssid)
694{
695 return wpa_config_write_cipher(ssid->pairwise_cipher);
696}
697#endif /* NO_CONFIG_WRITE */
698
699
700static int wpa_config_parse_group(const struct parse_data *data,
701 struct wpa_ssid *ssid, int line,
702 const char *value)
703{
704 int val;
705 val = wpa_config_parse_cipher(line, value);
706 if (val == -1)
707 return -1;
03145326 708 if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
6fc6879b
JM		 709 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
710 "(0x%x).", line, val);
711 return -1;
712 }
713
714 wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
715 ssid->group_cipher = val;
716 return 0;
717}
718
719
720#ifndef NO_CONFIG_WRITE
721static char * wpa_config_write_group(const struct parse_data *data,
722 struct wpa_ssid *ssid)
723{
724 return wpa_config_write_cipher(ssid->group_cipher);
725}
726#endif /* NO_CONFIG_WRITE */
727
728
729static int wpa_config_parse_auth_alg(const struct parse_data *data,
730 struct wpa_ssid *ssid, int line,
731 const char *value)
732{
733 int val = 0, last, errors = 0;
734 char *start, *end, *buf;
735
736 buf = os_strdup(value);
737 if (buf == NULL)
738 return -1;
739 start = buf;
740
741 while (*start != '\0') {
742 while (*start == ' ' || *start == '\t')
743 start++;
744 if (*start == '\0')
745 break;
746 end = start;
747 while (*end != ' ' && *end != '\t' && *end != '\0')
748 end++;
749 last = *end == '\0';
750 *end = '\0';
751 if (os_strcmp(start, "OPEN") == 0)
752 val |= WPA_AUTH_ALG_OPEN;
753 else if (os_strcmp(start, "SHARED") == 0)
754 val |= WPA_AUTH_ALG_SHARED;
755 else if (os_strcmp(start, "LEAP") == 0)
756 val |= WPA_AUTH_ALG_LEAP;
757 else {
758 wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
759 line, start);
760 errors++;
761 }
762
763 if (last)
764 break;
765 start = end + 1;
766 }
767 os_free(buf);
768
769 if (val == 0) {
770 wpa_printf(MSG_ERROR,
771 "Line %d: no auth_alg values configured.", line);
772 errors++;
773 }
774
775 wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
776 ssid->auth_alg = val;
777 return errors ? -1 : 0;
778}
779
780
781#ifndef NO_CONFIG_WRITE
782static char * wpa_config_write_auth_alg(const struct parse_data *data,
783 struct wpa_ssid *ssid)
784{
785 char *buf, *pos, *end;
786 int ret;
787
788 pos = buf = os_zalloc(30);
789 if (buf == NULL)
790 return NULL;
791 end = buf + 30;
792
793 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
794 ret = os_snprintf(pos, end - pos, "%sOPEN",
795 pos == buf ? "" : " ");
796 if (ret < 0 || ret >= end - pos) {
797 end[-1] = '\0';
798 return buf;
799 }
800 pos += ret;
801 }
802
803 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
804 ret = os_snprintf(pos, end - pos, "%sSHARED",
805 pos == buf ? "" : " ");
806 if (ret < 0 || ret >= end - pos) {
807 end[-1] = '\0';
808 return buf;
809 }
810 pos += ret;
811 }
812
813 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
814 ret = os_snprintf(pos, end - pos, "%sLEAP",
815 pos == buf ? "" : " ");
816 if (ret < 0 || ret >= end - pos) {
817 end[-1] = '\0';
818 return buf;
819 }
820 pos += ret;
821 }
822
823 return buf;
824}
825#endif /* NO_CONFIG_WRITE */
826
827
625f202a 828static int * wpa_config_parse_int_array(const char *value)
d3a98225
JM		 829{
830 int *freqs;
831 size_t used, len;
832 const char *pos;
833
834 used = 0;
835 len = 10;
f9884c09 836 freqs = os_calloc(len + 1, sizeof(int));
d3a98225 837 if (freqs == NULL)
b766a9a2 838 return NULL;
d3a98225
JM		 839
840 pos = value;
841 while (pos) {
842 while (*pos == ' ')
843 pos++;
844 if (used == len) {
845 int *n;
846 size_t i;
067ffa26 847 n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
d3a98225
JM		 848 if (n == NULL) {
849 os_free(freqs);
b766a9a2 850 return NULL;
d3a98225
JM		 851 }
852 for (i = len; i <= len * 2; i++)
853 n[i] = 0;
854 freqs = n;
855 len *= 2;
856 }
857
858 freqs[used] = atoi(pos);
859 if (freqs[used] == 0)
860 break;
861 used++;
862 pos = os_strchr(pos + 1, ' ');
863 }
864
b766a9a2
JM		 865 return freqs;
866}
867
868
869static int wpa_config_parse_scan_freq(const struct parse_data *data,
870 struct wpa_ssid *ssid, int line,
871 const char *value)
872{
873 int *freqs;
874
625f202a 875 freqs = wpa_config_parse_int_array(value);
b766a9a2
JM		 876 if (freqs == NULL)
877 return -1;
d3a98225
JM		 878 os_free(ssid->scan_freq);
879 ssid->scan_freq = freqs;
880
881 return 0;
882}
883
884
b766a9a2
JM		 885static int wpa_config_parse_freq_list(const struct parse_data *data,
886 struct wpa_ssid *ssid, int line,
887 const char *value)
888{
889 int *freqs;
890
625f202a 891 freqs = wpa_config_parse_int_array(value);
b766a9a2
JM		 892 if (freqs == NULL)
893 return -1;
894 os_free(ssid->freq_list);
895 ssid->freq_list = freqs;
896
897 return 0;
898}
899
900
d3a98225 901#ifndef NO_CONFIG_WRITE
b766a9a2
JM		 902static char * wpa_config_write_freqs(const struct parse_data *data,
903 const int *freqs)
d3a98225
JM		 904{
905 char *buf, *pos, *end;
906 int i, ret;
907 size_t count;
908
b766a9a2 909 if (freqs == NULL)
d3a98225
JM		 910 return NULL;
911
912 count = 0;
b766a9a2 913 for (i = 0; freqs[i]; i++)
d3a98225
JM		 914 count++;
915
916 pos = buf = os_zalloc(10 * count + 1);
917 if (buf == NULL)
918 return NULL;
919 end = buf + 10 * count + 1;
920
b766a9a2 921 for (i = 0; freqs[i]; i++) {
d3a98225 922 ret = os_snprintf(pos, end - pos, "%s%u",
b766a9a2 923 i == 0 ? "" : " ", freqs[i]);
d3a98225
JM		 924 if (ret < 0 || ret >= end - pos) {
925 end[-1] = '\0';
926 return buf;
927 }
928 pos += ret;
929 }
930
931 return buf;
932}
b766a9a2
JM		 933
934
935static char * wpa_config_write_scan_freq(const struct parse_data *data,
936 struct wpa_ssid *ssid)
937{
938 return wpa_config_write_freqs(data, ssid->scan_freq);
939}
940
941
942static char * wpa_config_write_freq_list(const struct parse_data *data,
943 struct wpa_ssid *ssid)
944{
945 return wpa_config_write_freqs(data, ssid->freq_list);
946}
d3a98225
JM		 947#endif /* NO_CONFIG_WRITE */
948
949
6fc6879b
JM		 950#ifdef IEEE8021X_EAPOL
951static int wpa_config_parse_eap(const struct parse_data *data,
952 struct wpa_ssid *ssid, int line,
953 const char *value)
954{
955 int last, errors = 0;
956 char *start, *end, *buf;
957 struct eap_method_type *methods = NULL, *tmp;
958 size_t num_methods = 0;
959
960 buf = os_strdup(value);
961 if (buf == NULL)
962 return -1;
963 start = buf;
964
965 while (*start != '\0') {
966 while (*start == ' ' || *start == '\t')
967 start++;
968 if (*start == '\0')
969 break;
970 end = start;
971 while (*end != ' ' && *end != '\t' && *end != '\0')
972 end++;
973 last = *end == '\0';
974 *end = '\0';
975 tmp = methods;
067ffa26
JM		 976 methods = os_realloc_array(methods, num_methods + 1,
977 sizeof(*methods));
6fc6879b
JM		 978 if (methods == NULL) {
979 os_free(tmp);
980 os_free(buf);
981 return -1;
982 }
983 methods[num_methods].method = eap_peer_get_type(
984 start, &methods[num_methods].vendor);
985 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
986 methods[num_methods].method == EAP_TYPE_NONE) {
987 wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
988 "'%s'", line, start);
989 wpa_printf(MSG_ERROR, "You may need to add support for"
990 " this EAP method during wpa_supplicant\n"
991 "build time configuration.\n"
992 "See README for more information.");
993 errors++;
994 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
995 methods[num_methods].method == EAP_TYPE_LEAP)
996 ssid->leap++;
997 else
998 ssid->non_leap++;
999 num_methods++;
1000 if (last)
1001 break;
1002 start = end + 1;
1003 }
1004 os_free(buf);
1005
1006 tmp = methods;
067ffa26 1007 methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
6fc6879b
JM		 1008 if (methods == NULL) {
1009 os_free(tmp);
1010 return -1;
1011 }
1012 methods[num_methods].vendor = EAP_VENDOR_IETF;
1013 methods[num_methods].method = EAP_TYPE_NONE;
1014 num_methods++;
1015
1016 wpa_hexdump(MSG_MSGDUMP, "eap methods",
1017 (u8 *) methods, num_methods * sizeof(*methods));
bb8b1bb0 1018 os_free(ssid->eap.eap_methods);
6fc6879b
JM		 1019 ssid->eap.eap_methods = methods;
1020 return errors ? -1 : 0;
1021}
1022
1023
1024static char * wpa_config_write_eap(const struct parse_data *data,
1025 struct wpa_ssid *ssid)
1026{
1027 int i, ret;
1028 char *buf, *pos, *end;
1029 const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1030 const char *name;
1031
1032 if (eap_methods == NULL)
1033 return NULL;
1034
1035 pos = buf = os_zalloc(100);
1036 if (buf == NULL)
1037 return NULL;
1038 end = buf + 100;
1039
1040 for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1041 eap_methods[i].method != EAP_TYPE_NONE; i++) {
1042 name = eap_get_name(eap_methods[i].vendor,
1043 eap_methods[i].method);
1044 if (name) {
1045 ret = os_snprintf(pos, end - pos, "%s%s",
1046 pos == buf ? "" : " ", name);
1047 if (ret < 0 || ret >= end - pos)
1048 break;
1049 pos += ret;
1050 }
1051 }
1052
1053 end[-1] = '\0';
1054
1055 return buf;
1056}
1057
1058
1059static int wpa_config_parse_password(const struct parse_data *data,
1060 struct wpa_ssid *ssid, int line,
1061 const char *value)
1062{
1063 u8 *hash;
1064
b56c0546
JM		 1065 if (os_strcmp(value, "NULL") == 0) {
1066 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1067 os_free(ssid->eap.password);
1068 ssid->eap.password = NULL;
1069 ssid->eap.password_len = 0;
1070 return 0;
1071 }
1072
0ebb23e3
JM		 1073#ifdef CONFIG_EXT_PASSWORD
1074 if (os_strncmp(value, "ext:", 4) == 0) {
1075 char *name = os_strdup(value + 4);
1076 if (name == NULL)
1077 return -1;
1078 os_free(ssid->eap.password);
1079 ssid->eap.password = (u8 *) name;
1080 ssid->eap.password_len = os_strlen(name);
1081 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1082 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1083 return 0;
1084 }
1085#endif /* CONFIG_EXT_PASSWORD */
1086
6fc6879b
JM		 1087 if (os_strncmp(value, "hash:", 5) != 0) {
1088 char *tmp;
1089 size_t res_len;
1090
1091 tmp = wpa_config_parse_string(value, &res_len);
1092 if (tmp == NULL) {
1093 wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1094 "password.", line);
1095 return -1;
1096 }
556f5a2a
HS		 1097 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1098 (u8 *) tmp, res_len);
6fc6879b
JM		 1099
1100 os_free(ssid->eap.password);
1101 ssid->eap.password = (u8 *) tmp;
1102 ssid->eap.password_len = res_len;
1103 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
0ebb23e3 1104 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
6fc6879b
JM		 1105
1106 return 0;
1107 }
1108
1109
1110 /* NtPasswordHash: hash:<32 hex digits> */
1111 if (os_strlen(value + 5) != 2 * 16) {
1112 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1113 "(expected 32 hex digits)", line);
1114 return -1;
1115 }
1116
1117 hash = os_malloc(16);
1118 if (hash == NULL)
1119 return -1;
1120
1121 if (hexstr2bin(value + 5, hash, 16)) {
1122 os_free(hash);
1123 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1124 return -1;
1125 }
1126
1127 wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1128
1129 os_free(ssid->eap.password);
1130 ssid->eap.password = hash;
1131 ssid->eap.password_len = 16;
1132 ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
0ebb23e3 1133 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
6fc6879b
JM		 1134
1135 return 0;
1136}
1137
1138
1139static char * wpa_config_write_password(const struct parse_data *data,
1140 struct wpa_ssid *ssid)
1141{
1142 char *buf;
1143
1144 if (ssid->eap.password == NULL)
1145 return NULL;
1146
0ebb23e3
JM		 1147#ifdef CONFIG_EXT_PASSWORD
1148 if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1149 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1150 if (buf == NULL)
1151 return NULL;
1152 os_memcpy(buf, "ext:", 4);
1153 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1154 return buf;
1155 }
1156#endif /* CONFIG_EXT_PASSWORD */
1157
6fc6879b
JM		 1158 if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1159 return wpa_config_write_string(
1160 ssid->eap.password, ssid->eap.password_len);
1161 }
1162
1163 buf = os_malloc(5 + 32 + 1);
1164 if (buf == NULL)
1165 return NULL;
1166
1167 os_memcpy(buf, "hash:", 5);
1168 wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1169
1170 return buf;
1171}
1172#endif /* IEEE8021X_EAPOL */
1173
1174
1175static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1176 const char *value, int idx)
1177{
1178 char *buf, title[20];
1179 int res;
1180
1181 buf = wpa_config_parse_string(value, len);
1182 if (buf == NULL) {
1183 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1184 line, idx, value);
1185 return -1;
1186 }
1187 if (*len > MAX_WEP_KEY_LEN) {
1188 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1189 line, idx, value);
1190 os_free(buf);
1191 return -1;
1192 }
fea7c3a0
JM		 1193 if (*len && *len != 5 && *len != 13 && *len != 16) {
1194 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1195 "this network block will be ignored",
1196 line, (unsigned int) *len);
1197 }
6fc6879b
JM		 1198 os_memcpy(key, buf, *len);
1199 os_free(buf);
1200 res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1201 if (res >= 0 && (size_t) res < sizeof(title))
1202 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1203 return 0;
1204}
1205
1206
1207static int wpa_config_parse_wep_key0(const struct parse_data *data,
1208 struct wpa_ssid *ssid, int line,
1209 const char *value)
1210{
1211 return wpa_config_parse_wep_key(ssid->wep_key[0],
1212 &ssid->wep_key_len[0], line,
1213 value, 0);
1214}
1215
1216
1217static int wpa_config_parse_wep_key1(const struct parse_data *data,
1218 struct wpa_ssid *ssid, int line,
1219 const char *value)
1220{
1221 return wpa_config_parse_wep_key(ssid->wep_key[1],
1222 &ssid->wep_key_len[1], line,
1223 value, 1);
1224}
1225
1226
1227static int wpa_config_parse_wep_key2(const struct parse_data *data,
1228 struct wpa_ssid *ssid, int line,
1229 const char *value)
1230{
1231 return wpa_config_parse_wep_key(ssid->wep_key[2],
1232 &ssid->wep_key_len[2], line,
1233 value, 2);
1234}
1235
1236
1237static int wpa_config_parse_wep_key3(const struct parse_data *data,
1238 struct wpa_ssid *ssid, int line,
1239 const char *value)
1240{
1241 return wpa_config_parse_wep_key(ssid->wep_key[3],
1242 &ssid->wep_key_len[3], line,
1243 value, 3);
1244}
1245
1246
1247#ifndef NO_CONFIG_WRITE
1248static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1249{
1250 if (ssid->wep_key_len[idx] == 0)
1251 return NULL;
1252 return wpa_config_write_string(ssid->wep_key[idx],
1253 ssid->wep_key_len[idx]);
1254}
1255
1256
1257static char * wpa_config_write_wep_key0(const struct parse_data *data,
1258 struct wpa_ssid *ssid)
1259{
1260 return wpa_config_write_wep_key(ssid, 0);
1261}
1262
1263
1264static char * wpa_config_write_wep_key1(const struct parse_data *data,
1265 struct wpa_ssid *ssid)
1266{
1267 return wpa_config_write_wep_key(ssid, 1);
1268}
1269
1270
1271static char * wpa_config_write_wep_key2(const struct parse_data *data,
1272 struct wpa_ssid *ssid)
1273{
1274 return wpa_config_write_wep_key(ssid, 2);
1275}
1276
1277
1278static char * wpa_config_write_wep_key3(const struct parse_data *data,
1279 struct wpa_ssid *ssid)
1280{
1281 return wpa_config_write_wep_key(ssid, 3);
1282}
1283#endif /* NO_CONFIG_WRITE */
1284
1285
fbdcfd57
JM		 1286#ifdef CONFIG_P2P
1287
1288static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1289 struct wpa_ssid *ssid, int line,
1290 const char *value)
1291{
1292 const char *pos;
1293 u8 *buf, *n, addr[ETH_ALEN];
1294 size_t count;
1295
1296 buf = NULL;
1297 count = 0;
1298
1299 pos = value;
1300 while (pos && *pos) {
1301 while (*pos == ' ')
1302 pos++;
1303
1304 if (hwaddr_aton(pos, addr)) {
22316795
JM		 1305 if (count == 0) {
1306 wpa_printf(MSG_ERROR, "Line %d: Invalid "
1307 "p2p_client_list address '%s'.",
1308 line, value);
1309 os_free(buf);
1310 return -1;
1311 }
1312 /* continue anyway since this could have been from a
1313 * truncated configuration file line */
1314 wpa_printf(MSG_INFO, "Line %d: Ignore likely "
1315 "truncated p2p_client_list address '%s'",
1316 line, pos);
fbdcfd57 1317 } else {
067ffa26 1318 n = os_realloc_array(buf, count + 1, ETH_ALEN);
fbdcfd57
JM		 1319 if (n == NULL) {
1320 os_free(buf);
1321 return -1;
1322 }
1323 buf = n;
22316795
JM		 1324 os_memmove(buf + ETH_ALEN, buf, count * ETH_ALEN);
1325 os_memcpy(buf, addr, ETH_ALEN);
fbdcfd57
JM		 1326 count++;
1327 wpa_hexdump(MSG_MSGDUMP, "p2p_client_list",
1328 addr, ETH_ALEN);
1329 }
1330
1331 pos = os_strchr(pos, ' ');
1332 }
1333
1334 os_free(ssid->p2p_client_list);
1335 ssid->p2p_client_list = buf;
1336 ssid->num_p2p_clients = count;
1337
1338 return 0;
1339}
1340
1341
1342#ifndef NO_CONFIG_WRITE
1343static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1344 struct wpa_ssid *ssid)
1345{
1346 char *value, *end, *pos;
1347 int res;
1348 size_t i;
1349
1350 if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0)
1351 return NULL;
1352
1353 value = os_malloc(20 * ssid->num_p2p_clients);
1354 if (value == NULL)
1355 return NULL;
1356 pos = value;
1357 end = value + 20 * ssid->num_p2p_clients;
1358
22316795 1359 for (i = ssid->num_p2p_clients; i > 0; i--) {
fbdcfd57
JM		 1360 res = os_snprintf(pos, end - pos, MACSTR " ",
1361 MAC2STR(ssid->p2p_client_list +
22316795 1362 (i - 1) * ETH_ALEN));
fbdcfd57
JM		 1363 if (res < 0 || res >= end - pos) {
1364 os_free(value);
1365 return NULL;
1366 }
1367 pos += res;
1368 }
1369
1370 if (pos > value)
1371 pos[-1] = '\0';
1372
1373 return value;
1374}
1375#endif /* NO_CONFIG_WRITE */
1376
1377#endif /* CONFIG_P2P */
1378
6fc6879b
JM		 1379/* Helper macros for network block parser */
1380
1381#ifdef OFFSET
1382#undef OFFSET
1383#endif /* OFFSET */
1384/* OFFSET: Get offset of a variable within the wpa_ssid structure */
1385#define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1386
1387/* STR: Define a string variable for an ASCII string; f = field name */
1388#ifdef NO_CONFIG_WRITE
1389#define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1390#define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1391#else /* NO_CONFIG_WRITE */
1392#define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1393#define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1394#endif /* NO_CONFIG_WRITE */
1395#define STR(f) _STR(f), NULL, NULL, NULL, 0
1396#define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1397#define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1398#define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1399
1400/* STR_LEN: Define a string variable with a separate variable for storing the
1401 * data length. Unlike STR(), this can be used to store arbitrary binary data
1402 * (i.e., even nul termination character). */
1403#define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1404#define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1405#define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1406#define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1407#define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1408
1409/* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1410 * explicitly specified. */
1411#define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1412#define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1413#define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1414
1415#ifdef NO_CONFIG_WRITE
1416#define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1417#define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1418#else /* NO_CONFIG_WRITE */
1419#define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1420 OFFSET(f), (void *) 0
1421#define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1422 OFFSET(eap.f), (void *) 0
1423#endif /* NO_CONFIG_WRITE */
1424
1425/* INT: Define an integer variable */
1426#define INT(f) _INT(f), NULL, NULL, 0
1427#define INTe(f) _INTe(f), NULL, NULL, 0
1428
1429/* INT_RANGE: Define an integer variable with allowed value range */
1430#define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1431
1432/* FUNC: Define a configuration variable that uses a custom function for
1433 * parsing and writing the value. */
1434#ifdef NO_CONFIG_WRITE
1435#define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1436#else /* NO_CONFIG_WRITE */
1437#define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1438 NULL, NULL, NULL, NULL
1439#endif /* NO_CONFIG_WRITE */
1440#define FUNC(f) _FUNC(f), 0
1441#define FUNC_KEY(f) _FUNC(f), 1
1442
1443/*
1444 * Table of network configuration variables. This table is used to parse each
1445 * network configuration variable, e.g., each line in wpa_supplicant.conf file
1446 * that is inside a network block.
1447 *
1448 * This table is generated using the helper macros defined above and with
1449 * generous help from the C pre-processor. The field name is stored as a string
1450 * into .name and for STR and INT types, the offset of the target buffer within
1451 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1452 * offset to the field containing the length of the configuration variable.
1453 * .param3 and .param4 can be used to mark the allowed range (length for STR
1454 * and value for INT).
1455 *
1456 * For each configuration line in wpa_supplicant.conf, the parser goes through
1457 * this table and select the entry that matches with the field name. The parser
1458 * function (.parser) is then called to parse the actual value of the field.
1459 *
1460 * This kind of mechanism makes it easy to add new configuration parameters,
1461 * since only one line needs to be added into this table and into the
1462 * struct wpa_ssid definition if the new variable is either a string or
1463 * integer. More complex types will need to use their own parser and writer
1464 * functions.
1465 */
1466static const struct parse_data ssid_fields[] = {
1467 { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1468 { INT_RANGE(scan_ssid, 0, 1) },
1469 { FUNC(bssid) },
1470 { FUNC_KEY(psk) },
1471 { FUNC(proto) },
1472 { FUNC(key_mgmt) },
1f6c0ab8 1473 { INT(bg_scan_period) },
6fc6879b
JM		 1474 { FUNC(pairwise) },
1475 { FUNC(group) },
1476 { FUNC(auth_alg) },
d3a98225 1477 { FUNC(scan_freq) },
b766a9a2 1478 { FUNC(freq_list) },
6fc6879b
JM		 1479#ifdef IEEE8021X_EAPOL
1480 { FUNC(eap) },
1481 { STR_LENe(identity) },
1482 { STR_LENe(anonymous_identity) },
556f5a2a 1483 { FUNC_KEY(password) },
6fc6879b
JM		 1484 { STRe(ca_cert) },
1485 { STRe(ca_path) },
1486 { STRe(client_cert) },
1487 { STRe(private_key) },
1488 { STR_KEYe(private_key_passwd) },
1489 { STRe(dh_file) },
1490 { STRe(subject_match) },
1491 { STRe(altsubject_match) },
1492 { STRe(ca_cert2) },
1493 { STRe(ca_path2) },
1494 { STRe(client_cert2) },
1495 { STRe(private_key2) },
1496 { STR_KEYe(private_key2_passwd) },
1497 { STRe(dh_file2) },
1498 { STRe(subject_match2) },
1499 { STRe(altsubject_match2) },
1500 { STRe(phase1) },
1501 { STRe(phase2) },
1502 { STRe(pcsc) },
1503 { STR_KEYe(pin) },
1504 { STRe(engine_id) },
1505 { STRe(key_id) },
61ee0f71
DS		 1506 { STRe(cert_id) },
1507 { STRe(ca_cert_id) },
98842d51
CL		 1508 { STR_KEYe(pin2) },
1509 { STRe(engine2_id) },
61ee0f71
DS		 1510 { STRe(key2_id) },
1511 { STRe(cert2_id) },
1512 { STRe(ca_cert2_id) },
6fc6879b 1513 { INTe(engine) },
98842d51 1514 { INTe(engine2) },
6fc6879b
JM		 1515 { INT(eapol_flags) },
1516#endif /* IEEE8021X_EAPOL */
1517 { FUNC_KEY(wep_key0) },
1518 { FUNC_KEY(wep_key1) },
1519 { FUNC_KEY(wep_key2) },
1520 { FUNC_KEY(wep_key3) },
1521 { INT(wep_tx_keyidx) },
1522 { INT(priority) },
1523#ifdef IEEE8021X_EAPOL
1524 { INT(eap_workaround) },
1525 { STRe(pac_file) },
1526 { INTe(fragment_size) },
1527#endif /* IEEE8021X_EAPOL */
2c5d725c 1528 { INT_RANGE(mode, 0, 4) },
6fc6879b 1529 { INT_RANGE(proactive_key_caching, 0, 1) },
4dac0245 1530 { INT_RANGE(disabled, 0, 2) },
6fc6879b
JM		 1531 { STR(id_str) },
1532#ifdef CONFIG_IEEE80211W
1533 { INT_RANGE(ieee80211w, 0, 2) },
1534#endif /* CONFIG_IEEE80211W */
1535 { INT_RANGE(peerkey, 0, 1) },
1536 { INT_RANGE(mixed_cell, 0, 1) },
7829894c 1537 { INT_RANGE(frequency, 0, 65000) },
60b94c98
JM		 1538 { INT(wpa_ptk_rekey) },
1539 { STR(bgscan) },
e62f4ed0 1540 { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
fbdcfd57
JM		 1541#ifdef CONFIG_P2P
1542 { FUNC(p2p_client_list) },
1543#endif /* CONFIG_P2P */
80e8a5ee
BG		 1544#ifdef CONFIG_HT_OVERRIDES
1545 { INT_RANGE(disable_ht, 0, 1) },
1546 { INT_RANGE(disable_ht40, -1, 1) },
a90497f8 1547 { INT_RANGE(disable_sgi, 0, 1) },
80e8a5ee
BG		 1548 { INT_RANGE(disable_max_amsdu, -1, 1) },
1549 { INT_RANGE(ampdu_factor, -1, 3) },
1550 { INT_RANGE(ampdu_density, -1, 7) },
1551 { STR(ht_mcs) },
1552#endif /* CONFIG_HT_OVERRIDES */
e9ee8dc3
JB		 1553#ifdef CONFIG_VHT_OVERRIDES
1554 { INT_RANGE(disable_vht, 0, 1) },
1555 { INT(vht_capa) },
1556 { INT(vht_capa_mask) },
1557 { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1558 { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1559 { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1560 { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1561 { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1562 { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1563 { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1564 { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1565 { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1566 { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1567 { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1568 { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1569 { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1570 { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1571 { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1572 { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1573#endif /* CONFIG_VHT_OVERRIDES */
07f53b8c 1574 { INT(ap_max_inactivity) },
fdfb1c8b 1575 { INT(dtim_period) },
18206e02 1576 { INT(beacon_int) },
6fc6879b
JM		 1577};
1578
1579#undef OFFSET
1580#undef _STR
1581#undef STR
1582#undef STR_KEY
1583#undef _STR_LEN
1584#undef STR_LEN
1585#undef STR_LEN_KEY
1586#undef _STR_RANGE
1587#undef STR_RANGE
1588#undef STR_RANGE_KEY
1589#undef _INT
1590#undef INT
1591#undef INT_RANGE
1592#undef _FUNC
1593#undef FUNC
1594#undef FUNC_KEY
1595#define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0]))
1596
1597
1598/**
1599 * wpa_config_add_prio_network - Add a network to priority lists
1600 * @config: Configuration data from wpa_config_read()
1601 * @ssid: Pointer to the network configuration to be added to the list
1602 * Returns: 0 on success, -1 on failure
1603 *
1604 * This function is used to add a network block to the priority list of
1605 * networks. This must be called for each network when reading in the full
1606 * configuration. In addition, this can be used indirectly when updating
1607 * priorities by calling wpa_config_update_prio_list().
1608 */
1609int wpa_config_add_prio_network(struct wpa_config *config,
1610 struct wpa_ssid *ssid)
1611{
1612 int prio;
1613 struct wpa_ssid *prev, **nlist;
1614
1615 /*
1616 * Add to an existing priority list if one is available for the
1617 * configured priority level for this network.
1618 */
1619 for (prio = 0; prio < config->num_prio; prio++) {
1620 prev = config->pssid[prio];
1621 if (prev->priority == ssid->priority) {
1622 while (prev->pnext)
1623 prev = prev->pnext;
1624 prev->pnext = ssid;
1625 return 0;
1626 }
1627 }
1628
1629 /* First network for this priority - add a new priority list */
067ffa26
JM		 1630 nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1631 sizeof(struct wpa_ssid *));
6fc6879b
JM		 1632 if (nlist == NULL)
1633 return -1;
1634
1635 for (prio = 0; prio < config->num_prio; prio++) {
2c60ca73
JM		 1636 if (nlist[prio]->priority < ssid->priority) {
1637 os_memmove(&nlist[prio + 1], &nlist[prio],
1638 (config->num_prio - prio) *
1639 sizeof(struct wpa_ssid *));
6fc6879b 1640 break;
2c60ca73 1641 }
6fc6879b
JM		 1642 }
1643
6fc6879b
JM		 1644 nlist[prio] = ssid;
1645 config->num_prio++;
1646 config->pssid = nlist;
1647
1648 return 0;
1649}
1650
1651
1652/**
1653 * wpa_config_update_prio_list - Update network priority list
1654 * @config: Configuration data from wpa_config_read()
1655 * Returns: 0 on success, -1 on failure
1656 *
1657 * This function is called to update the priority list of networks in the
1658 * configuration when a network is being added or removed. This is also called
1659 * if a priority for a network is changed.
1660 */
aa53509f 1661int wpa_config_update_prio_list(struct wpa_config *config)
6fc6879b
JM		 1662{
1663 struct wpa_ssid *ssid;
1664 int ret = 0;
1665
1666 os_free(config->pssid);
1667 config->pssid = NULL;
1668 config->num_prio = 0;
1669
1670 ssid = config->ssid;
1671 while (ssid) {
1672 ssid->pnext = NULL;
1673 if (wpa_config_add_prio_network(config, ssid) < 0)
1674 ret = -1;
1675 ssid = ssid->next;
1676 }
1677
1678 return ret;
1679}
1680
1681
1682#ifdef IEEE8021X_EAPOL
1683static void eap_peer_config_free(struct eap_peer_config *eap)
1684{
1685 os_free(eap->eap_methods);
1686 os_free(eap->identity);
1687 os_free(eap->anonymous_identity);
1688 os_free(eap->password);
1689 os_free(eap->ca_cert);
1690 os_free(eap->ca_path);
1691 os_free(eap->client_cert);
1692 os_free(eap->private_key);
1693 os_free(eap->private_key_passwd);
1694 os_free(eap->dh_file);
1695 os_free(eap->subject_match);
1696 os_free(eap->altsubject_match);
1697 os_free(eap->ca_cert2);
1698 os_free(eap->ca_path2);
1699 os_free(eap->client_cert2);
1700 os_free(eap->private_key2);
1701 os_free(eap->private_key2_passwd);
1702 os_free(eap->dh_file2);
1703 os_free(eap->subject_match2);
1704 os_free(eap->altsubject_match2);
1705 os_free(eap->phase1);
1706 os_free(eap->phase2);
1707 os_free(eap->pcsc);
1708 os_free(eap->pin);
1709 os_free(eap->engine_id);
1710 os_free(eap->key_id);
61ee0f71
DS		 1711 os_free(eap->cert_id);
1712 os_free(eap->ca_cert_id);
1713 os_free(eap->key2_id);
1714 os_free(eap->cert2_id);
1715 os_free(eap->ca_cert2_id);
98842d51
CL		 1716 os_free(eap->pin2);
1717 os_free(eap->engine2_id);
6fc6879b
JM		 1718 os_free(eap->otp);
1719 os_free(eap->pending_req_otp);
1720 os_free(eap->pac_file);
1721 os_free(eap->new_password);
1722}
1723#endif /* IEEE8021X_EAPOL */
1724
1725
1726/**
1727 * wpa_config_free_ssid - Free network/ssid configuration data
1728 * @ssid: Configuration data for the network
1729 *
1730 * This function frees all resources allocated for the network configuration
1731 * data.
1732 */
1733void wpa_config_free_ssid(struct wpa_ssid *ssid)
1734{
1735 os_free(ssid->ssid);
1736 os_free(ssid->passphrase);
9173b16f 1737 os_free(ssid->ext_psk);
6fc6879b
JM		 1738#ifdef IEEE8021X_EAPOL
1739 eap_peer_config_free(&ssid->eap);
1740#endif /* IEEE8021X_EAPOL */
1741 os_free(ssid->id_str);
d3a98225 1742 os_free(ssid->scan_freq);
b766a9a2 1743 os_free(ssid->freq_list);
60b94c98 1744 os_free(ssid->bgscan);
fbdcfd57 1745 os_free(ssid->p2p_client_list);
80e8a5ee
BG		 1746#ifdef CONFIG_HT_OVERRIDES
1747 os_free(ssid->ht_mcs);
1748#endif /* CONFIG_HT_OVERRIDES */
6fc6879b
JM		 1749 os_free(ssid);
1750}
1751
1752
1bb7b8e8
JM		 1753void wpa_config_free_cred(struct wpa_cred *cred)
1754{
1755 os_free(cred->realm);
1756 os_free(cred->username);
1757 os_free(cred->password);
1758 os_free(cred->ca_cert);
11e4f46a
JM		 1759 os_free(cred->client_cert);
1760 os_free(cred->private_key);
1761 os_free(cred->private_key_passwd);
1bb7b8e8
JM		 1762 os_free(cred->imsi);
1763 os_free(cred->milenage);
1764 os_free(cred->domain);
8ca93c59
JM		 1765 os_free(cred->eap_method);
1766 os_free(cred->phase1);
1767 os_free(cred->phase2);
dbea8ac7 1768 os_free(cred->excluded_ssid);
1bb7b8e8
JM		 1769 os_free(cred);
1770}
1771
1772
6fc6879b
JM		 1773/**
1774 * wpa_config_free - Free configuration data
1775 * @config: Configuration data from wpa_config_read()
1776 *
1777 * This function frees all resources allocated for the configuration data by
1778 * wpa_config_read().
1779 */
1780void wpa_config_free(struct wpa_config *config)
1781{
1782#ifndef CONFIG_NO_CONFIG_BLOBS
1783 struct wpa_config_blob *blob, *prevblob;
1784#endif /* CONFIG_NO_CONFIG_BLOBS */
1785 struct wpa_ssid *ssid, *prev = NULL;
1bb7b8e8 1786 struct wpa_cred *cred, *cprev;
e3768e7c 1787
6fc6879b
JM		 1788 ssid = config->ssid;
1789 while (ssid) {
1790 prev = ssid;
1791 ssid = ssid->next;
1792 wpa_config_free_ssid(prev);
1793 }
1794
1bb7b8e8
JM		 1795 cred = config->cred;
1796 while (cred) {
1797 cprev = cred;
1798 cred = cred->next;
1799 wpa_config_free_cred(cprev);
1800 }
1801
6fc6879b
JM		 1802#ifndef CONFIG_NO_CONFIG_BLOBS
1803 blob = config->blobs;
1804 prevblob = NULL;
1805 while (blob) {
1806 prevblob = blob;
1807 blob = blob->next;
1808 wpa_config_free_blob(prevblob);
1809 }
1810#endif /* CONFIG_NO_CONFIG_BLOBS */
1811
71dd3b78 1812 wpabuf_free(config->wps_vendor_ext_m1);
6fc6879b
JM		 1813 os_free(config->ctrl_interface);
1814 os_free(config->ctrl_interface_group);
6fc6879b
JM		 1815 os_free(config->opensc_engine_path);
1816 os_free(config->pkcs11_engine_path);
1817 os_free(config->pkcs11_module_path);
f64adcd7
JM		 1818 os_free(config->pcsc_reader);
1819 os_free(config->pcsc_pin);
6fc6879b 1820 os_free(config->driver_param);
3c0b7aa4
JM		 1821 os_free(config->device_name);
1822 os_free(config->manufacturer);
1823 os_free(config->model_name);
1824 os_free(config->model_number);
1825 os_free(config->serial_number);
c0e4dd9e 1826 os_free(config->config_methods);
e3768e7c 1827 os_free(config->p2p_ssid_postfix);
6fc6879b 1828 os_free(config->pssid);
21d996f7 1829 os_free(config->p2p_pref_chan);
b0786fba 1830 os_free(config->autoscan);
3f2c8ba6
JM		 1831 wpabuf_free(config->wps_nfc_dh_pubkey);
1832 wpabuf_free(config->wps_nfc_dh_privkey);
1833 wpabuf_free(config->wps_nfc_dev_pw);
306ae225 1834 os_free(config->ext_password_backend);
625f202a 1835 os_free(config->sae_groups);
18a2eaab 1836 wpabuf_free(config->ap_vendor_elements);
6fc6879b
JM		 1837 os_free(config);
1838}
1839
1840
7c49fdd0
SL		 1841/**
1842 * wpa_config_foreach_network - Iterate over each configured network
1843 * @config: Configuration data from wpa_config_read()
1844 * @func: Callback function to process each network
1845 * @arg: Opaque argument to pass to callback function
1846 *
1847 * Iterate over the set of configured networks calling the specified
1848 * function for each item. We guard against callbacks removing the
1849 * supplied network.
1850 */
1851void wpa_config_foreach_network(struct wpa_config *config,
1852 void (*func)(void *, struct wpa_ssid *),
1853 void *arg)
1854{
1855 struct wpa_ssid *ssid, *next;
1856
1857 ssid = config->ssid;
1858 while (ssid) {
1859 next = ssid->next;
1860 func(arg, ssid);
1861 ssid = next;
1862 }
1863}
1864
1865
6fc6879b
JM		 1866/**
1867 * wpa_config_get_network - Get configured network based on id
1868 * @config: Configuration data from wpa_config_read()
1869 * @id: Unique network id to search for
1870 * Returns: Network configuration or %NULL if not found
1871 */
1872struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
1873{
1874 struct wpa_ssid *ssid;
1875
1876 ssid = config->ssid;
1877 while (ssid) {
1878 if (id == ssid->id)
1879 break;
1880 ssid = ssid->next;
1881 }
1882
1883 return ssid;
1884}
1885
1886
1887/**
1888 * wpa_config_add_network - Add a new network with empty configuration
1889 * @config: Configuration data from wpa_config_read()
1890 * Returns: The new network configuration or %NULL if operation failed
1891 */
1892struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
1893{
1894 int id;
1895 struct wpa_ssid *ssid, *last = NULL;
1896
1897 id = -1;
1898 ssid = config->ssid;
1899 while (ssid) {
1900 if (ssid->id > id)
1901 id = ssid->id;
1902 last = ssid;
1903 ssid = ssid->next;
1904 }
1905 id++;
1906
1907 ssid = os_zalloc(sizeof(*ssid));
1908 if (ssid == NULL)
1909 return NULL;
1910 ssid->id = id;
1911 if (last)
1912 last->next = ssid;
1913 else
1914 config->ssid = ssid;
1915
1916 wpa_config_update_prio_list(config);
1917
1918 return ssid;
1919}
1920
1921
1922/**
1923 * wpa_config_remove_network - Remove a configured network based on id
1924 * @config: Configuration data from wpa_config_read()
1925 * @id: Unique network id to search for
1926 * Returns: 0 on success, or -1 if the network was not found
1927 */
1928int wpa_config_remove_network(struct wpa_config *config, int id)
1929{
1930 struct wpa_ssid *ssid, *prev = NULL;
1931
1932 ssid = config->ssid;
1933 while (ssid) {
1934 if (id == ssid->id)
1935 break;
1936 prev = ssid;
1937 ssid = ssid->next;
1938 }
1939
1940 if (ssid == NULL)
1941 return -1;
1942
1943 if (prev)
1944 prev->next = ssid->next;
1945 else
1946 config->ssid = ssid->next;
1947
1948 wpa_config_update_prio_list(config);
1949 wpa_config_free_ssid(ssid);
1950 return 0;
1951}
1952
1953
1954/**
1955 * wpa_config_set_network_defaults - Set network default values
1956 * @ssid: Pointer to network configuration data
1957 */
1958void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
1959{
1960 ssid->proto = DEFAULT_PROTO;
1961 ssid->pairwise_cipher = DEFAULT_PAIRWISE;
1962 ssid->group_cipher = DEFAULT_GROUP;
1963 ssid->key_mgmt = DEFAULT_KEY_MGMT;
1f6c0ab8 1964 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
6fc6879b
JM		 1965#ifdef IEEE8021X_EAPOL
1966 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
1967 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
1968 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
1969#endif /* IEEE8021X_EAPOL */
80e8a5ee
BG		 1970#ifdef CONFIG_HT_OVERRIDES
1971 ssid->disable_ht = DEFAULT_DISABLE_HT;
1972 ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
a90497f8 1973 ssid->disable_sgi = DEFAULT_DISABLE_SGI;
80e8a5ee
BG		 1974 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
1975 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
1976 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
1977#endif /* CONFIG_HT_OVERRIDES */
e9ee8dc3
JB		 1978#ifdef CONFIG_VHT_OVERRIDES
1979 ssid->vht_rx_mcs_nss_1 = -1;
1980 ssid->vht_rx_mcs_nss_2 = -1;
1981 ssid->vht_rx_mcs_nss_3 = -1;
1982 ssid->vht_rx_mcs_nss_4 = -1;
1983 ssid->vht_rx_mcs_nss_5 = -1;
1984 ssid->vht_rx_mcs_nss_6 = -1;
1985 ssid->vht_rx_mcs_nss_7 = -1;
1986 ssid->vht_rx_mcs_nss_8 = -1;
1987 ssid->vht_tx_mcs_nss_1 = -1;
1988 ssid->vht_tx_mcs_nss_2 = -1;
1989 ssid->vht_tx_mcs_nss_3 = -1;
1990 ssid->vht_tx_mcs_nss_4 = -1;
1991 ssid->vht_tx_mcs_nss_5 = -1;
1992 ssid->vht_tx_mcs_nss_6 = -1;
1993 ssid->vht_tx_mcs_nss_7 = -1;
1994 ssid->vht_tx_mcs_nss_8 = -1;
1995#endif /* CONFIG_VHT_OVERRIDES */
6e202021 1996 ssid->proactive_key_caching = -1;
62d49803
JM		 1997#ifdef CONFIG_IEEE80211W
1998 ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
1999#endif /* CONFIG_IEEE80211W */
6fc6879b
JM		 2000}
2001
2002
2003/**
2004 * wpa_config_set - Set a variable in network configuration
2005 * @ssid: Pointer to network configuration data
2006 * @var: Variable name, e.g., "ssid"
2007 * @value: Variable value
2008 * @line: Line number in configuration file or 0 if not used
2009 * Returns: 0 on success, -1 on failure
2010 *
2011 * This function can be used to set network configuration variables based on
2012 * both the configuration file and management interface input. The value
2013 * parameter must be in the same format as the text-based configuration file is
2014 * using. For example, strings are using double quotation marks.
2015 */
2016int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2017 int line)
2018{
2019 size_t i;
2020 int ret = 0;
2021
2022 if (ssid == NULL || var == NULL || value == NULL)
2023 return -1;
2024
2025 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2026 const struct parse_data *field = &ssid_fields[i];
2027 if (os_strcmp(var, field->name) != 0)
2028 continue;
2029
2030 if (field->parser(field, ssid, line, value)) {
2031 if (line) {
2032 wpa_printf(MSG_ERROR, "Line %d: failed to "
2033 "parse %s '%s'.", line, var, value);
2034 }
2035 ret = -1;
2036 }
2037 break;
2038 }
2039 if (i == NUM_SSID_FIELDS) {
2040 if (line) {
2041 wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2042 "'%s'.", line, var);
2043 }
2044 ret = -1;
2045 }
2046
2047 return ret;
2048}
2049
2050
67e1b984
JM		 2051int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2052 const char *value)
2053{
2054 size_t len;
2055 char *buf;
2056 int ret;
2057
2058 len = os_strlen(value);
2059 buf = os_malloc(len + 3);
2060 if (buf == NULL)
2061 return -1;
2062 buf[0] = '"';
2063 os_memcpy(buf + 1, value, len);
2064 buf[len + 1] = '"';
2065 buf[len + 2] = '\0';
2066 ret = wpa_config_set(ssid, var, buf, 0);
2067 os_free(buf);
2068 return ret;
2069}
2070
2071
3d3d3056
WS		 2072/**
2073 * wpa_config_get_all - Get all options from network configuration
2074 * @ssid: Pointer to network configuration data
2075 * @get_keys: Determines if keys/passwords will be included in returned list
d1c8ac88 2076 * (if they may be exported)
3d3d3056
WS		 2077 * Returns: %NULL terminated list of all set keys and their values in the form
2078 * of [key1, val1, key2, val2, ... , NULL]
2079 *
2080 * This function can be used to get list of all configured network properties.
2081 * The caller is responsible for freeing the returned list and all its
2082 * elements.
2083 */
2084char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2085{
2086 const struct parse_data *field;
2087 char *key, *value;
2088 size_t i;
2089 char **props;
2090 int fields_num;
2091
d1c8ac88
JB		 2092 get_keys = get_keys && ssid->export_keys;
2093
f9884c09 2094 props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
3d3d3056
WS		 2095 if (!props)
2096 return NULL;
2097
2098 fields_num = 0;
2099 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2100 field = &ssid_fields[i];
2101 if (field->key_data && !get_keys)
2102 continue;
2103 value = field->writer(field, ssid);
04746865 2104 if (value == NULL)
3d3d3056 2105 continue;
04746865
JM		 2106 if (os_strlen(value) == 0) {
2107 os_free(value);
2108 continue;
2109 }
3d3d3056
WS		 2110
2111 key = os_strdup(field->name);
04746865
JM		 2112 if (key == NULL) {
2113 os_free(value);
3d3d3056 2114 goto err;
04746865 2115 }
3d3d3056
WS		 2116
2117 props[fields_num * 2] = key;
2118 props[fields_num * 2 + 1] = value;
2119
2120 fields_num++;
2121 }
2122
2123 return props;
2124
2125err:
2126 value = *props;
2127 while (value)
2128 os_free(value++);
2129 os_free(props);
2130 return NULL;
2131}
2132
2133
6fc6879b
JM		 2134#ifndef NO_CONFIG_WRITE
2135/**
2136 * wpa_config_get - Get a variable in network configuration
2137 * @ssid: Pointer to network configuration data
2138 * @var: Variable name, e.g., "ssid"
2139 * Returns: Value of the variable or %NULL on failure
2140 *
2141 * This function can be used to get network configuration variables. The
2142 * returned value is a copy of the configuration variable in text format, i.e,.
2143 * the same format that the text-based configuration file and wpa_config_set()
2144 * are using for the value. The caller is responsible for freeing the returned
2145 * value.
2146 */
2147char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2148{
2149 size_t i;
2150
2151 if (ssid == NULL || var == NULL)
2152 return NULL;
2153
2154 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2155 const struct parse_data *field = &ssid_fields[i];
2156 if (os_strcmp(var, field->name) == 0)
2157 return field->writer(field, ssid);
2158 }
2159
2160 return NULL;
2161}
2162
2163
2164/**
2165 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2166 * @ssid: Pointer to network configuration data
2167 * @var: Variable name, e.g., "ssid"
2168 * Returns: Value of the variable or %NULL on failure
2169 *
2170 * This function can be used to get network configuration variable like
2171 * wpa_config_get(). The only difference is that this functions does not expose
2172 * key/password material from the configuration. In case a key/password field
2173 * is requested, the returned value is an empty string or %NULL if the variable
2174 * is not set or "*" if the variable is set (regardless of its value). The
2175 * returned value is a copy of the configuration variable in text format, i.e,.
2176 * the same format that the text-based configuration file and wpa_config_set()
2177 * are using for the value. The caller is responsible for freeing the returned
2178 * value.
2179 */
2180char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2181{
2182 size_t i;
2183
2184 if (ssid == NULL || var == NULL)
2185 return NULL;
2186
2187 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2188 const struct parse_data *field = &ssid_fields[i];
2189 if (os_strcmp(var, field->name) == 0) {
2190 char *res = field->writer(field, ssid);
2191 if (field->key_data) {
2192 if (res && res[0]) {
2193 wpa_printf(MSG_DEBUG, "Do not allow "
2194 "key_data field to be "
2195 "exposed");
2196 os_free(res);
2197 return os_strdup("*");
2198 }
2199
2200 os_free(res);
2201 return NULL;
2202 }
2203 return res;
2204 }
2205 }
2206
2207 return NULL;
2208}
2209#endif /* NO_CONFIG_WRITE */
2210
2211
2212/**
2213 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2214 * @ssid: Pointer to network configuration data
2215 *
2216 * This function must be called to update WPA PSK when either SSID or the
2217 * passphrase has changed for the network configuration.
2218 */
2219void wpa_config_update_psk(struct wpa_ssid *ssid)
2220{
2221#ifndef CONFIG_NO_PBKDF2
986de33d 2222 pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
6fc6879b
JM		 2223 ssid->psk, PMK_LEN);
2224 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2225 ssid->psk, PMK_LEN);
2226 ssid->psk_set = 1;
2227#endif /* CONFIG_NO_PBKDF2 */
2228}
2229
2230
1bb7b8e8
JM		 2231int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2232 const char *value, int line)
2233{
2234 char *val;
2235 size_t len;
2236
1a712d2f
JM		 2237 if (os_strcmp(var, "priority") == 0) {
2238 cred->priority = atoi(value);
2239 return 0;
2240 }
2241
d7b01abd
JM		 2242 if (os_strcmp(var, "pcsc") == 0) {
2243 cred->pcsc = atoi(value);
2244 return 0;
2245 }
2246
8ca93c59
JM		 2247 if (os_strcmp(var, "eap") == 0) {
2248 struct eap_method_type method;
2249 method.method = eap_peer_get_type(value, &method.vendor);
2250 if (method.vendor == EAP_VENDOR_IETF &&
2251 method.method == EAP_TYPE_NONE) {
2252 wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2253 "for a credential", line, value);
2254 return -1;
2255 }
2256 os_free(cred->eap_method);
2257 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2258 if (cred->eap_method == NULL)
2259 return -1;
2260 os_memcpy(cred->eap_method, &method, sizeof(method));
2261 return 0;
2262 }
2263
02af9c90
JM		 2264 if (os_strcmp(var, "password") == 0 &&
2265 os_strncmp(value, "ext:", 4) == 0) {
2266 os_free(cred->password);
2267 cred->password = os_strdup(value);
2268 cred->ext_password = 1;
2269 return 0;
2270 }
2271
1bb7b8e8 2272 val = wpa_config_parse_string(value, &len);
7d86e537
JM		 2273 if (val == NULL) {
2274 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2275 "value '%s'.", line, var, value);
1bb7b8e8 2276 return -1;
7d86e537 2277 }
1bb7b8e8
JM		 2278
2279 if (os_strcmp(var, "realm") == 0) {
2280 os_free(cred->realm);
2281 cred->realm = val;
2282 return 0;
2283 }
2284
2285 if (os_strcmp(var, "username") == 0) {
2286 os_free(cred->username);
2287 cred->username = val;
2288 return 0;
2289 }
2290
2291 if (os_strcmp(var, "password") == 0) {
2292 os_free(cred->password);
2293 cred->password = val;
02af9c90 2294 cred->ext_password = 0;
1bb7b8e8
JM		 2295 return 0;
2296 }
2297
2298 if (os_strcmp(var, "ca_cert") == 0) {
2299 os_free(cred->ca_cert);
2300 cred->ca_cert = val;
2301 return 0;
2302 }
2303
11e4f46a
JM		 2304 if (os_strcmp(var, "client_cert") == 0) {
2305 os_free(cred->client_cert);
2306 cred->client_cert = val;
2307 return 0;
2308 }
2309
2310 if (os_strcmp(var, "private_key") == 0) {
2311 os_free(cred->private_key);
2312 cred->private_key = val;
2313 return 0;
2314 }
2315
2316 if (os_strcmp(var, "private_key_passwd") == 0) {
2317 os_free(cred->private_key_passwd);
2318 cred->private_key_passwd = val;
2319 return 0;
2320 }
2321
1bb7b8e8
JM		 2322 if (os_strcmp(var, "imsi") == 0) {
2323 os_free(cred->imsi);
2324 cred->imsi = val;
2325 return 0;
2326 }
2327
2328 if (os_strcmp(var, "milenage") == 0) {
2329 os_free(cred->milenage);
2330 cred->milenage = val;
2331 return 0;
2332 }
2333
2334 if (os_strcmp(var, "domain") == 0) {
2335 os_free(cred->domain);
2336 cred->domain = val;
2337 return 0;
2338 }
2339
8ca93c59
JM		 2340 if (os_strcmp(var, "phase1") == 0) {
2341 os_free(cred->phase1);
2342 cred->phase1 = val;
2343 return 0;
2344 }
2345
2346 if (os_strcmp(var, "phase2") == 0) {
2347 os_free(cred->phase2);
2348 cred->phase2 = val;
2349 return 0;
2350 }
2351
955567bc
JM		 2352 if (os_strcmp(var, "roaming_consortium") == 0) {
2353 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2354 wpa_printf(MSG_ERROR, "Line %d: invalid "
2355 "roaming_consortium length %d (3..15 "
2356 "expected)", line, (int) len);
2357 os_free(val);
2358 return -1;
2359 }
2360 os_memcpy(cred->roaming_consortium, val, len);
2361 cred->roaming_consortium_len = len;
2362 os_free(val);
2363 return 0;
2364 }
2365
dbea8ac7
JM		 2366 if (os_strcmp(var, "excluded_ssid") == 0) {
2367 struct excluded_ssid *e;
2368
2369 if (len > MAX_SSID_LEN) {
2370 wpa_printf(MSG_ERROR, "Line %d: invalid "
2371 "excluded_ssid length %d", line, (int) len);
2372 os_free(val);
2373 return -1;
2374 }
2375
2376 e = os_realloc_array(cred->excluded_ssid,
2377 cred->num_excluded_ssid + 1,
2378 sizeof(struct excluded_ssid));
2379 if (e == NULL) {
2380 os_free(val);
2381 return -1;
2382 }
2383 cred->excluded_ssid = e;
2384
2385 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2386 os_memcpy(e->ssid, val, len);
2387 e->ssid_len = len;
2388
2389 os_free(val);
2390
2391 return 0;
2392 }
2393
1bb7b8e8
JM		 2394 if (line) {
2395 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2396 line, var);
2397 }
2398
f4b2d69b
JM		 2399 os_free(val);
2400
1bb7b8e8
JM		 2401 return -1;
2402}
2403
2404
d94c9ee6
JM		 2405struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
2406{
2407 struct wpa_cred *cred;
2408
2409 cred = config->cred;
2410 while (cred) {
2411 if (id == cred->id)
2412 break;
2413 cred = cred->next;
2414 }
2415
2416 return cred;
2417}
2418
2419
2420struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
2421{
2422 int id;
2423 struct wpa_cred *cred, *last = NULL;
2424
2425 id = -1;
2426 cred = config->cred;
2427 while (cred) {
2428 if (cred->id > id)
2429 id = cred->id;
2430 last = cred;
2431 cred = cred->next;
2432 }
2433 id++;
2434
2435 cred = os_zalloc(sizeof(*cred));
2436 if (cred == NULL)
2437 return NULL;
2438 cred->id = id;
2439 if (last)
2440 last->next = cred;
2441 else
2442 config->cred = cred;
2443
2444 return cred;
2445}
2446
2447
2448int wpa_config_remove_cred(struct wpa_config *config, int id)
2449{
2450 struct wpa_cred *cred, *prev = NULL;
2451
2452 cred = config->cred;
2453 while (cred) {
2454 if (id == cred->id)
2455 break;
2456 prev = cred;
2457 cred = cred->next;
2458 }
2459
2460 if (cred == NULL)
2461 return -1;
2462
2463 if (prev)
2464 prev->next = cred->next;
2465 else
2466 config->cred = cred->next;
2467
2468 wpa_config_free_cred(cred);
2469 return 0;
2470}
2471
2472
6fc6879b
JM		 2473#ifndef CONFIG_NO_CONFIG_BLOBS
2474/**
2475 * wpa_config_get_blob - Get a named configuration blob
2476 * @config: Configuration data from wpa_config_read()
2477 * @name: Name of the blob
2478 * Returns: Pointer to blob data or %NULL if not found
2479 */
2480const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
2481 const char *name)
2482{
2483 struct wpa_config_blob *blob = config->blobs;
2484
2485 while (blob) {
2486 if (os_strcmp(blob->name, name) == 0)
2487 return blob;
2488 blob = blob->next;
2489 }
2490 return NULL;
2491}
2492
2493
2494/**
2495 * wpa_config_set_blob - Set or add a named configuration blob
2496 * @config: Configuration data from wpa_config_read()
2497 * @blob: New value for the blob
2498 *
2499 * Adds a new configuration blob or replaces the current value of an existing
2500 * blob.
2501 */
2502void wpa_config_set_blob(struct wpa_config *config,
2503 struct wpa_config_blob *blob)
2504{
2505 wpa_config_remove_blob(config, blob->name);
2506 blob->next = config->blobs;
2507 config->blobs = blob;
2508}
2509
2510
2511/**
2512 * wpa_config_free_blob - Free blob data
2513 * @blob: Pointer to blob to be freed
2514 */
2515void wpa_config_free_blob(struct wpa_config_blob *blob)
2516{
2517 if (blob) {
2518 os_free(blob->name);
2519 os_free(blob->data);
2520 os_free(blob);
2521 }
2522}
2523
2524
2525/**
2526 * wpa_config_remove_blob - Remove a named configuration blob
2527 * @config: Configuration data from wpa_config_read()
2528 * @name: Name of the blob to remove
2529 * Returns: 0 if blob was removed or -1 if blob was not found
2530 */
2531int wpa_config_remove_blob(struct wpa_config *config, const char *name)
2532{
2533 struct wpa_config_blob *pos = config->blobs, *prev = NULL;
2534
2535 while (pos) {
2536 if (os_strcmp(pos->name, name) == 0) {
2537 if (prev)
2538 prev->next = pos->next;
2539 else
2540 config->blobs = pos->next;
2541 wpa_config_free_blob(pos);
2542 return 0;
2543 }
2544 prev = pos;
2545 pos = pos->next;
2546 }
2547
2548 return -1;
2549}
2550#endif /* CONFIG_NO_CONFIG_BLOBS */
2551
2552
2553/**
2554 * wpa_config_alloc_empty - Allocate an empty configuration
2555 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
2556 * socket
2557 * @driver_param: Driver parameters
2558 * Returns: Pointer to allocated configuration data or %NULL on failure
2559 */
2560struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
2561 const char *driver_param)
2562{
2563 struct wpa_config *config;
c26effe1
YD		 2564 const int aCWmin = 4, aCWmax = 10;
2565 const struct hostapd_wmm_ac_params ac_bk =
2566 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
2567 const struct hostapd_wmm_ac_params ac_be =
2568 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
2569 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
623ecdd5 2570 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
c26effe1 2571 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
623ecdd5 2572 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
6fc6879b
JM		 2573
2574 config = os_zalloc(sizeof(*config));
2575 if (config == NULL)
2576 return NULL;
2577 config->eapol_version = DEFAULT_EAPOL_VERSION;
2578 config->ap_scan = DEFAULT_AP_SCAN;
2579 config->fast_reauth = DEFAULT_FAST_REAUTH;
e3768e7c 2580 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
0f66abd2 2581 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
462a7439 2582 config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
c9c38b09 2583 config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
78633c37
SL		 2584 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
2585 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
dae608d5 2586 config->max_num_sta = DEFAULT_MAX_NUM_STA;
11540c0b 2587 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
c26effe1
YD		 2588 config->wmm_ac_params[0] = ac_be;
2589 config->wmm_ac_params[1] = ac_bk;
2590 config->wmm_ac_params[2] = ac_vi;
2591 config->wmm_ac_params[3] = ac_vo;
6fc6879b
JM		 2592
2593 if (ctrl_interface)
2594 config->ctrl_interface = os_strdup(ctrl_interface);
2595 if (driver_param)
2596 config->driver_param = os_strdup(driver_param);
2597
2598 return config;
2599}
2600
2601
2602#ifndef CONFIG_NO_STDOUT_DEBUG
2603/**
2604 * wpa_config_debug_dump_networks - Debug dump of configured networks
2605 * @config: Configuration data from wpa_config_read()
2606 */
2607void wpa_config_debug_dump_networks(struct wpa_config *config)
2608{
2609 int prio;
2610 struct wpa_ssid *ssid;
2611
2612 for (prio = 0; prio < config->num_prio; prio++) {
2613 ssid = config->pssid[prio];
2614 wpa_printf(MSG_DEBUG, "Priority group %d",
2615 ssid->priority);
2616 while (ssid) {
2617 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
2618 ssid->id,
2619 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2620 ssid = ssid->pnext;
2621 }
2622 }
2623}
2624#endif /* CONFIG_NO_STDOUT_DEBUG */
121adf9c
JM		 2625
2626
2627struct global_parse_data {
2628 char *name;
2629 int (*parser)(const struct global_parse_data *data,
2630 struct wpa_config *config, int line, const char *value);
2631 void *param1, *param2, *param3;
1d47214a 2632 unsigned int changed_flag;
121adf9c
JM		 2633};
2634
2635
2636static int wpa_global_config_parse_int(const struct global_parse_data *data,
2637 struct wpa_config *config, int line,
2638 const char *pos)
2639{
eae3a584
JB		 2640 int val, *dst;
2641 char *end;
2642
121adf9c 2643 dst = (int *) (((u8 *) config) + (long) data->param1);
eae3a584
JB		 2644 val = strtol(pos, &end, 0);
2645 if (*end) {
2646 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
2647 line, pos);
2648 return -1;
2649 }
2650 *dst = val;
2651
121adf9c
JM		 2652 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
2653
2654 if (data->param2 && *dst < (long) data->param2) {
2655 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
2656 "min_value=%ld)", line, data->name, *dst,
2657 (long) data->param2);
2658 *dst = (long) data->param2;
2659 return -1;
2660 }
2661
2662 if (data->param3 && *dst > (long) data->param3) {
2663 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
2664 "max_value=%ld)", line, data->name, *dst,
2665 (long) data->param3);
2666 *dst = (long) data->param3;
2667 return -1;
2668 }
2669
2670 return 0;
2671}
2672
2673
2674static int wpa_global_config_parse_str(const struct global_parse_data *data,
2675 struct wpa_config *config, int line,
2676 const char *pos)
2677{
2678 size_t len;
2679 char **dst, *tmp;
2680
2681 len = os_strlen(pos);
2682 if (data->param2 && len < (size_t) data->param2) {
2683 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
2684 "min_len=%ld)", line, data->name,
2685 (unsigned long) len, (long) data->param2);
2686 return -1;
2687 }
2688
2689 if (data->param3 && len > (size_t) data->param3) {
2690 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
2691 "max_len=%ld)", line, data->name,
2692 (unsigned long) len, (long) data->param3);
2693 return -1;
2694 }
2695
2696 tmp = os_strdup(pos);
2697 if (tmp == NULL)
2698 return -1;
2699
2700 dst = (char **) (((u8 *) config) + (long) data->param1);
2701 os_free(*dst);
2702 *dst = tmp;
2703 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
2704
2705 return 0;
2706}
2707
2708
3f2c8ba6
JM		 2709static int wpa_global_config_parse_bin(const struct global_parse_data *data,
2710 struct wpa_config *config, int line,
2711 const char *pos)
2712{
2713 size_t len;
2714 struct wpabuf **dst, *tmp;
2715
2716 len = os_strlen(pos);
2717 if (len & 0x01)
2718 return -1;
2719
2720 tmp = wpabuf_alloc(len / 2);
2721 if (tmp == NULL)
2722 return -1;
2723
2724 if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
2725 wpabuf_free(tmp);
2726 return -1;
2727 }
2728
2729 dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
2730 wpabuf_free(*dst);
2731 *dst = tmp;
2732 wpa_printf(MSG_DEBUG, "%s", data->name);
2733
2734 return 0;
2735}
2736
2737
121adf9c
JM		 2738static int wpa_config_process_country(const struct global_parse_data *data,
2739 struct wpa_config *config, int line,
2740 const char *pos)
2741{
2742 if (!pos[0] || !pos[1]) {
2743 wpa_printf(MSG_DEBUG, "Invalid country set");
2744 return -1;
2745 }
2746 config->country[0] = pos[0];
2747 config->country[1] = pos[1];
2748 wpa_printf(MSG_DEBUG, "country='%c%c'",
2749 config->country[0], config->country[1]);
2750 return 0;
2751}
2752
2753
2754static int wpa_config_process_load_dynamic_eap(
2755 const struct global_parse_data *data, struct wpa_config *config,
2756 int line, const char *so)
2757{
2758 int ret;
2759 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
2760 ret = eap_peer_method_load(so);
2761 if (ret == -2) {
2762 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
2763 "reloading.");
2764 } else if (ret) {
2765 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
2766 "method '%s'.", line, so);
2767 return -1;
2768 }
2769
2770 return 0;
2771}
2772
2773
2774#ifdef CONFIG_WPS
2775
2776static int wpa_config_process_uuid(const struct global_parse_data *data,
2777 struct wpa_config *config, int line,
2778 const char *pos)
2779{
2780 char buf[40];
2781 if (uuid_str2bin(pos, config->uuid)) {
2782 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
2783 return -1;
2784 }
2785 uuid_bin2str(config->uuid, buf, sizeof(buf));
2786 wpa_printf(MSG_DEBUG, "uuid=%s", buf);
2787 return 0;
2788}
2789
2790
2f646b6e
JB		 2791static int wpa_config_process_device_type(
2792 const struct global_parse_data *data,
2793 struct wpa_config *config, int line, const char *pos)
2794{
2795 return wps_dev_type_str2bin(pos, config->device_type);
2796}
2797
2798
121adf9c
JM		 2799static int wpa_config_process_os_version(const struct global_parse_data *data,
2800 struct wpa_config *config, int line,
2801 const char *pos)
2802{
2803 if (hexstr2bin(pos, config->os_version, 4)) {
2804 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
2805 return -1;
2806 }
2807 wpa_printf(MSG_DEBUG, "os_version=%08x",
2808 WPA_GET_BE32(config->os_version));
2809 return 0;
2810}
2811
71dd3b78
AS		 2812
2813static int wpa_config_process_wps_vendor_ext_m1(
2814 const struct global_parse_data *data,
2815 struct wpa_config *config, int line, const char *pos)
2816{
2817 struct wpabuf *tmp;
2818 int len = os_strlen(pos) / 2;
2819 u8 *p;
2820
2821 if (!len) {
2822 wpa_printf(MSG_ERROR, "Line %d: "
2823 "invalid wps_vendor_ext_m1", line);
2824 return -1;
2825 }
2826
2827 tmp = wpabuf_alloc(len);
2828 if (tmp) {
2829 p = wpabuf_put(tmp, len);
2830
2831 if (hexstr2bin(pos, p, len)) {
2832 wpa_printf(MSG_ERROR, "Line %d: "
2833 "invalid wps_vendor_ext_m1", line);
2834 wpabuf_free(tmp);
2835 return -1;
2836 }
2837
2838 wpabuf_free(config->wps_vendor_ext_m1);
2839 config->wps_vendor_ext_m1 = tmp;
2840 } else {
2841 wpa_printf(MSG_ERROR, "Can not allocate "
2842 "memory for wps_vendor_ext_m1");
2843 return -1;
2844 }
2845
2846 return 0;
2847}
2848
121adf9c
JM		 2849#endif /* CONFIG_WPS */
2850
e3768e7c
JM		 2851#ifdef CONFIG_P2P
2852static int wpa_config_process_sec_device_type(
2853 const struct global_parse_data *data,
2854 struct wpa_config *config, int line, const char *pos)
2855{
2856 int idx;
2857
2f646b6e 2858 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
e3768e7c
JM		 2859 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
2860 "items", line);
2861 return -1;
2862 }
2863
2f646b6e
JB		 2864 idx = config->num_sec_device_types;
2865
2866 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
e3768e7c 2867 return -1;
2f646b6e
JB		 2868
2869 config->num_sec_device_types++;
e3768e7c
JM		 2870 return 0;
2871}
21d996f7
JM		 2872
2873
2874static int wpa_config_process_p2p_pref_chan(
2875 const struct global_parse_data *data,
2876 struct wpa_config *config, int line, const char *pos)
2877{
2878 struct p2p_channel *pref = NULL, *n;
2879 unsigned int num = 0;
2880 const char *pos2;
2881 u8 op_class, chan;
2882
2883 /* format: class:chan,class:chan,... */
2884
2885 while (*pos) {
2886 op_class = atoi(pos);
2887 pos2 = os_strchr(pos, ':');
2888 if (pos2 == NULL)
2889 goto fail;
2890 pos2++;
2891 chan = atoi(pos2);
2892
067ffa26
JM		 2893 n = os_realloc_array(pref, num + 1,
2894 sizeof(struct p2p_channel));
21d996f7
JM		 2895 if (n == NULL)
2896 goto fail;
2897 pref = n;
2898 pref[num].op_class = op_class;
2899 pref[num].chan = chan;
2900 num++;
2901
2902 pos = os_strchr(pos2, ',');
2903 if (pos == NULL)
2904 break;
2905 pos++;
2906 }
2907
2908 os_free(config->p2p_pref_chan);
2909 config->p2p_pref_chan = pref;
2910 config->num_p2p_pref_chan = num;
2911 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
2912 (u8 *) config->p2p_pref_chan,
2913 config->num_p2p_pref_chan * sizeof(struct p2p_channel));
2914
2915 return 0;
2916
2917fail:
2918 os_free(pref);
2919 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
2920 return -1;
2921}
e3768e7c
JM		 2922#endif /* CONFIG_P2P */
2923
121adf9c 2924
46ee0427
JM		 2925static int wpa_config_process_hessid(
2926 const struct global_parse_data *data,
2927 struct wpa_config *config, int line, const char *pos)
2928{
2929 if (hwaddr_aton2(pos, config->hessid) < 0) {
2930 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
2931 line, pos);
2932 return -1;
2933 }
2934
2935 return 0;
2936}
2937
2938
625f202a
JM		 2939static int wpa_config_process_sae_groups(
2940 const struct global_parse_data *data,
2941 struct wpa_config *config, int line, const char *pos)
2942{
2943 int *groups = wpa_config_parse_int_array(pos);
2944 if (groups == NULL) {
2945 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
2946 line, pos);
2947 return -1;
2948 }
2949
2950 os_free(config->sae_groups);
2951 config->sae_groups = groups;
2952
2953 return 0;
2954}
2955
2956
18a2eaab
JM		 2957static int wpa_config_process_ap_vendor_elements(
2958 const struct global_parse_data *data,
2959 struct wpa_config *config, int line, const char *pos)
2960{
2961 struct wpabuf *tmp;
2962 int len = os_strlen(pos) / 2;
2963 u8 *p;
2964
2965 if (!len) {
2966 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
2967 line);
2968 return -1;
2969 }
2970
2971 tmp = wpabuf_alloc(len);
2972 if (tmp) {
2973 p = wpabuf_put(tmp, len);
2974
2975 if (hexstr2bin(pos, p, len)) {
2976 wpa_printf(MSG_ERROR, "Line %d: invalid "
2977 "ap_vendor_elements", line);
2978 wpabuf_free(tmp);
2979 return -1;
2980 }
2981
2982 wpabuf_free(config->ap_vendor_elements);
2983 config->ap_vendor_elements = tmp;
2984 } else {
2985 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
2986 "ap_vendor_elements");
2987 return -1;
2988 }
2989
2990 return 0;
2991}
2992
2993
121adf9c
JM		 2994#ifdef OFFSET
2995#undef OFFSET
2996#endif /* OFFSET */
2997/* OFFSET: Get offset of a variable within the wpa_config structure */
2998#define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
2999
3000#define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
3001#define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
3002#define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
3003#define INT(f) _INT(f), NULL, NULL
3004#define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
3005#define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
3006#define STR(f) _STR(f), NULL, NULL
3007#define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
3f2c8ba6 3008#define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
121adf9c
JM		 3009
3010static const struct global_parse_data global_fields[] = {
3011#ifdef CONFIG_CTRL_IFACE
1d47214a
JM		 3012 { STR(ctrl_interface), 0 },
3013 { STR(ctrl_interface_group), 0 } /* deprecated */,
121adf9c 3014#endif /* CONFIG_CTRL_IFACE */
1d47214a
JM		 3015 { INT_RANGE(eapol_version, 1, 2), 0 },
3016 { INT(ap_scan), 0 },
54ddd743 3017 { INT(disable_scan_offload), 0 },
1d47214a
JM		 3018 { INT(fast_reauth), 0 },
3019 { STR(opensc_engine_path), 0 },
3020 { STR(pkcs11_engine_path), 0 },
3021 { STR(pkcs11_module_path), 0 },
f64adcd7
JM		 3022 { STR(pcsc_reader), 0 },
3023 { STR(pcsc_pin), 0 },
1d47214a
JM		 3024 { STR(driver_param), 0 },
3025 { INT(dot11RSNAConfigPMKLifetime), 0 },
3026 { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
3027 { INT(dot11RSNAConfigSATimeout), 0 },
121adf9c 3028#ifndef CONFIG_NO_CONFIG_WRITE
1d47214a 3029 { INT(update_config), 0 },
121adf9c 3030#endif /* CONFIG_NO_CONFIG_WRITE */
1d47214a 3031 { FUNC_NO_VAR(load_dynamic_eap), 0 },
121adf9c 3032#ifdef CONFIG_WPS
1d47214a
JM		 3033 { FUNC(uuid), CFG_CHANGED_UUID },
3034 { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
1c9cb49f
JM		 3035 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
3036 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
3037 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
3038 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
2f646b6e 3039 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
1d47214a
JM		 3040 { FUNC(os_version), CFG_CHANGED_OS_VERSION },
3041 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
3042 { INT_RANGE(wps_cred_processing, 0, 2), 0 },
71dd3b78 3043 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
121adf9c 3044#endif /* CONFIG_WPS */
e3768e7c
JM		 3045#ifdef CONFIG_P2P
3046 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
3047 { INT(p2p_listen_reg_class), 0 },
3048 { INT(p2p_listen_channel), 0 },
3049 { INT(p2p_oper_reg_class), 0 },
3050 { INT(p2p_oper_channel), 0 },
3051 { INT_RANGE(p2p_go_intent, 0, 15), 0 },
3052 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
3053 { INT_RANGE(persistent_reconnect, 0, 1), 0 },
0f66abd2 3054 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
3071e181 3055 { INT(p2p_group_idle), 0 },
21d996f7 3056 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
a93a15bb 3057 { INT(p2p_go_ht40), 0 },
7a808c7e 3058 { INT(p2p_disabled), 0 },
d76cd41a 3059 { INT(p2p_no_group_iface), 0 },
b277a2be 3060 { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
e3768e7c 3061#endif /* CONFIG_P2P */
1d47214a
JM		 3062 { FUNC(country), CFG_CHANGED_COUNTRY },
3063 { INT(bss_max_count), 0 },
78633c37
SL		 3064 { INT(bss_expiration_age), 0 },
3065 { INT(bss_expiration_scan_count), 0 },
dae608d5 3066 { INT_RANGE(filter_ssids, 0, 1), 0 },
bf8d6d24 3067 { INT_RANGE(filter_rssi, -100, 0), 0 },
0d7e5a3a 3068 { INT(max_num_sta), 0 },
46ee0427 3069 { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
66aadbd7
JK		 3070#ifdef CONFIG_HS20
3071 { INT_RANGE(hs20, 0, 1), 0 },
3072#endif /* CONFIG_HS20 */
46ee0427 3073 { INT_RANGE(interworking, 0, 1), 0 },
11540c0b 3074 { FUNC(hessid), 0 },
1298c145 3075 { INT_RANGE(access_network_type, 0, 15), 0 },
b0786fba 3076 { INT_RANGE(pbc_in_m1, 0, 1), 0 },
3f2c8ba6 3077 { STR(autoscan), 0 },
042ec551
JM		 3078 { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
3079 CFG_CHANGED_NFC_PASSWORD_TOKEN },
3080 { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3081 { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
3082 { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
462a7439
ES		 3083 { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
3084 { INT(p2p_go_max_inactivity), 0 },
4d5bda5f 3085 { INT_RANGE(auto_interworking, 0, 1), 0 },
6e202021 3086 { INT(okc), 0 },
62d49803 3087 { INT(pmf), 0 },
625f202a 3088 { FUNC(sae_groups), 0 },
18206e02
JM		 3089 { INT(dtim_period), 0 },
3090 { INT(beacon_int), 0 },
18a2eaab 3091 { FUNC(ap_vendor_elements), 0 },
4342326f 3092 { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
121adf9c
JM		 3093};
3094
3095#undef FUNC
3096#undef _INT
3097#undef INT
3098#undef INT_RANGE
3099#undef _STR
3100#undef STR
3101#undef STR_RANGE
3f2c8ba6 3102#undef BIN
121adf9c
JM		 3103#define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0]))
3104
3105
3106int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
3107{
3108 size_t i;
3109 int ret = 0;
3110
3111 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
3112 const struct global_parse_data *field = &global_fields[i];
3113 size_t flen = os_strlen(field->name);
3114 if (os_strncmp(pos, field->name, flen) != 0 ||
3115 pos[flen] != '=')
3116 continue;
3117
3118 if (field->parser(field, config, line, pos + flen + 1)) {
3119 wpa_printf(MSG_ERROR, "Line %d: failed to "
3120 "parse '%s'.", line, pos);
3121 ret = -1;
3122 }
042ec551
JM		 3123 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
3124 config->wps_nfc_pw_from_config = 1;
1d47214a 3125 config->changed_parameters |= field->changed_flag;
121adf9c
JM		 3126 break;
3127 }
3128 if (i == NUM_GLOBAL_FIELDS) {
c26effe1
YD		 3129#ifdef CONFIG_AP
3130 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
3131 char *tmp = os_strchr(pos, '=');
3132 if (tmp == NULL) {
3133 if (line < 0)
3134 return -1;
3135 wpa_printf(MSG_ERROR, "Line %d: invalid line "
3136 "'%s'", line, pos);
3137 return -1;
3138 }
3139 *tmp++ = '\0';
3140 if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
3141 tmp)) {
3142 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
3143 "AC item", line);
3144 return -1;
3145 }
3146 }
3147#endif /* CONFIG_AP */
1d47214a
JM		 3148 if (line < 0)
3149 return -1;
121adf9c
JM		 3150 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
3151 line, pos);
3152 ret = -1;
3153 }
3154
3155 return ret;
3156}
Unnamed repository; edit this file 'description' to name the repository.