1 /*
2 * WPA Supplicant / Configuration parser and common functions
3 * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "utils/uuid.h"
13 #include "utils/ip_addr.h"
14 #include "crypto/sha1.h"
15 #include "rsn_supp/wpa.h"
16 #include "eap_peer/eap.h"
17 #include "p2p/p2p.h"
18 #include "config.h"
19
20
21 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
22 #define NO_CONFIG_WRITE
23 #endif
24
25 /*
26 * Structure for network configuration parsing. This data is used to implement
27 * a generic parser for each network block variable. The table of configuration
28 * variables is defined below in this file (ssid_fields[]).
29 */
30 struct parse_data {
31 /* Configuration variable name */
32 char *name;
33
34 /* Parser function for this variable */
35 int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
36 int line, const char *value);
37
38 #ifndef NO_CONFIG_WRITE
39 /* Writer function (i.e., to get the variable in text format from
40 * internal presentation). */
41 char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
42 #endif /* NO_CONFIG_WRITE */
43
44 /* Variable specific parameters for the parser. */
45 void *param1, *param2, *param3, *param4;
46
47 /* 0 = this variable can be included in debug output and ctrl_iface
48 * 1 = this variable contains key/private data and it must not be
49 * included in debug output unless explicitly requested. In
50 * addition, this variable will not be readable through the
51 * ctrl_iface.
52 */
53 int key_data;
54 };
55
56
wpa_config_parse_str(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)57 static int wpa_config_parse_str(const struct parse_data *data,
58 struct wpa_ssid *ssid,
59 int line, const char *value)
60 {
61 size_t res_len, *dst_len;
62 char **dst, *tmp;
63
64 if (os_strcmp(value, "NULL") == 0) {
65 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
66 data->name);
67 tmp = NULL;
68 res_len = 0;
69 goto set;
70 }
71
72 tmp = wpa_config_parse_string(value, &res_len);
73 if (tmp == NULL) {
74 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
75 line, data->name,
76 data->key_data ? "[KEY DATA REMOVED]" : value);
77 return -1;
78 }
79
80 if (data->key_data) {
81 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
82 (u8 *) tmp, res_len);
83 } else {
84 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
85 (u8 *) tmp, res_len);
86 }
87
88 if (data->param3 && res_len < (size_t) data->param3) {
89 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
90 "min_len=%ld)", line, data->name,
91 (unsigned long) res_len, (long) data->param3);
92 os_free(tmp);
93 return -1;
94 }
95
96 if (data->param4 && res_len > (size_t) data->param4) {
97 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
98 "max_len=%ld)", line, data->name,
99 (unsigned long) res_len, (long) data->param4);
100 os_free(tmp);
101 return -1;
102 }
103
104 set:
105 dst = (char **) (((u8 *) ssid) + (long) data->param1);
106 dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
107 os_free(*dst);
108 *dst = tmp;
109 if (data->param2)
110 *dst_len = res_len;
111
112 return 0;
113 }
114
115
116 #ifndef NO_CONFIG_WRITE
wpa_config_write_string_ascii(const u8 * value,size_t len)117 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
118 {
119 char *buf;
120
121 buf = os_malloc(len + 3);
122 if (buf == NULL)
123 return NULL;
124 buf[0] = '"';
125 os_memcpy(buf + 1, value, len);
126 buf[len + 1] = '"';
127 buf[len + 2] = '\0';
128
129 return buf;
130 }
131
132
wpa_config_write_string_hex(const u8 * value,size_t len)133 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
134 {
135 char *buf;
136
137 buf = os_zalloc(2 * len + 1);
138 if (buf == NULL)
139 return NULL;
140 wpa_snprintf_hex(buf, 2 * len + 1, value, len);
141
142 return buf;
143 }
144
145
wpa_config_write_string(const u8 * value,size_t len)146 static char * wpa_config_write_string(const u8 *value, size_t len)
147 {
148 if (value == NULL)
149 return NULL;
150
151 if (is_hex(value, len))
152 return wpa_config_write_string_hex(value, len);
153 else
154 return wpa_config_write_string_ascii(value, len);
155 }
156
157
wpa_config_write_str(const struct parse_data * data,struct wpa_ssid * ssid)158 static char * wpa_config_write_str(const struct parse_data *data,
159 struct wpa_ssid *ssid)
160 {
161 size_t len;
162 char **src;
163
164 src = (char **) (((u8 *) ssid) + (long) data->param1);
165 if (*src == NULL)
166 return NULL;
167
168 if (data->param2)
169 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
170 else
171 len = os_strlen(*src);
172
173 return wpa_config_write_string((const u8 *) *src, len);
174 }
175 #endif /* NO_CONFIG_WRITE */
176
177
wpa_config_parse_int(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)178 static int wpa_config_parse_int(const struct parse_data *data,
179 struct wpa_ssid *ssid,
180 int line, const char *value)
181 {
182 int val, *dst;
183 char *end;
184
185 dst = (int *) (((u8 *) ssid) + (long) data->param1);
186 val = strtol(value, &end, 0);
187 if (*end) {
188 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
189 line, value);
190 return -1;
191 }
192 *dst = val;
193 wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
194
195 if (data->param3 && *dst < (long) data->param3) {
196 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
197 "min_value=%ld)", line, data->name, *dst,
198 (long) data->param3);
199 *dst = (long) data->param3;
200 return -1;
201 }
202
203 if (data->param4 && *dst > (long) data->param4) {
204 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
205 "max_value=%ld)", line, data->name, *dst,
206 (long) data->param4);
207 *dst = (long) data->param4;
208 return -1;
209 }
210
211 return 0;
212 }
213
214
215 #ifndef NO_CONFIG_WRITE
wpa_config_write_int(const struct parse_data * data,struct wpa_ssid * ssid)216 static char * wpa_config_write_int(const struct parse_data *data,
217 struct wpa_ssid *ssid)
218 {
219 int *src, res;
220 char *value;
221
222 src = (int *) (((u8 *) ssid) + (long) data->param1);
223
224 value = os_malloc(20);
225 if (value == NULL)
226 return NULL;
227 res = os_snprintf(value, 20, "%d", *src);
228 if (os_snprintf_error(20, res)) {
229 os_free(value);
230 return NULL;
231 }
232 value[20 - 1] = '\0';
233 return value;
234 }
235 #endif /* NO_CONFIG_WRITE */
236
237
wpa_config_parse_addr_list(const struct parse_data * data,int line,const char * value,u8 ** list,size_t * num,char * name,u8 abort_on_error,u8 masked)238 static int wpa_config_parse_addr_list(const struct parse_data *data,
239 int line, const char *value,
240 u8 **list, size_t *num, char *name,
241 u8 abort_on_error, u8 masked)
242 {
243 const char *pos;
244 u8 *buf, *n, addr[2 * ETH_ALEN];
245 size_t count;
246
247 buf = NULL;
248 count = 0;
249
250 pos = value;
251 while (pos && *pos) {
252 while (*pos == ' ')
253 pos++;
254
255 if (hwaddr_masked_aton(pos, addr, &addr[ETH_ALEN], masked)) {
256 if (abort_on_error || count == 0) {
257 wpa_printf(MSG_ERROR,
258 "Line %d: Invalid %s address '%s'",
259 line, name, value);
260 os_free(buf);
261 return -1;
262 }
263 /* continue anyway since this could have been from a
264 * truncated configuration file line */
265 wpa_printf(MSG_INFO,
266 "Line %d: Ignore likely truncated %s address '%s'",
267 line, name, pos);
268 } else {
269 n = os_realloc_array(buf, count + 1, 2 * ETH_ALEN);
270 if (n == NULL) {
271 os_free(buf);
272 return -1;
273 }
274 buf = n;
275 os_memmove(buf + 2 * ETH_ALEN, buf,
276 count * 2 * ETH_ALEN);
277 os_memcpy(buf, addr, 2 * ETH_ALEN);
278 count++;
279 wpa_printf(MSG_MSGDUMP,
280 "%s: addr=" MACSTR " mask=" MACSTR,
281 name, MAC2STR(addr),
282 MAC2STR(&addr[ETH_ALEN]));
283 }
284
285 pos = os_strchr(pos, ' ');
286 }
287
288 os_free(*list);
289 *list = buf;
290 *num = count;
291
292 return 0;
293 }
294
295
296 #ifndef NO_CONFIG_WRITE
wpa_config_write_addr_list(const struct parse_data * data,const u8 * list,size_t num,char * name)297 static char * wpa_config_write_addr_list(const struct parse_data *data,
298 const u8 *list, size_t num, char *name)
299 {
300 char *value, *end, *pos;
301 int res;
302 size_t i;
303
304 if (list == NULL || num == 0)
305 return NULL;
306
307 value = os_malloc(2 * 20 * num);
308 if (value == NULL)
309 return NULL;
310 pos = value;
311 end = value + 2 * 20 * num;
312
313 for (i = num; i > 0; i--) {
314 const u8 *a = list + (i - 1) * 2 * ETH_ALEN;
315 const u8 *m = a + ETH_ALEN;
316
317 if (i < num)
318 *pos++ = ' ';
319 res = hwaddr_mask_txt(pos, end - pos, a, m);
320 if (res < 0) {
321 os_free(value);
322 return NULL;
323 }
324 pos += res;
325 }
326
327 return value;
328 }
329 #endif /* NO_CONFIG_WRITE */
330
wpa_config_parse_bssid(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)331 static int wpa_config_parse_bssid(const struct parse_data *data,
332 struct wpa_ssid *ssid, int line,
333 const char *value)
334 {
335 if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
336 os_strcmp(value, "any") == 0) {
337 ssid->bssid_set = 0;
338 wpa_printf(MSG_MSGDUMP, "BSSID any");
339 return 0;
340 }
341 if (hwaddr_aton(value, ssid->bssid)) {
342 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
343 line, value);
344 return -1;
345 }
346 ssid->bssid_set = 1;
347 wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
348 return 0;
349 }
350
351
352 #ifndef NO_CONFIG_WRITE
wpa_config_write_bssid(const struct parse_data * data,struct wpa_ssid * ssid)353 static char * wpa_config_write_bssid(const struct parse_data *data,
354 struct wpa_ssid *ssid)
355 {
356 char *value;
357 int res;
358
359 if (!ssid->bssid_set)
360 return NULL;
361
362 value = os_malloc(20);
363 if (value == NULL)
364 return NULL;
365 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
366 if (os_snprintf_error(20, res)) {
367 os_free(value);
368 return NULL;
369 }
370 value[20 - 1] = '\0';
371 return value;
372 }
373 #endif /* NO_CONFIG_WRITE */
374
375
wpa_config_parse_bssid_blacklist(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)376 static int wpa_config_parse_bssid_blacklist(const struct parse_data *data,
377 struct wpa_ssid *ssid, int line,
378 const char *value)
379 {
380 return wpa_config_parse_addr_list(data, line, value,
381 &ssid->bssid_blacklist,
382 &ssid->num_bssid_blacklist,
383 "bssid_blacklist", 1, 1);
384 }
385
386
387 #ifndef NO_CONFIG_WRITE
wpa_config_write_bssid_blacklist(const struct parse_data * data,struct wpa_ssid * ssid)388 static char * wpa_config_write_bssid_blacklist(const struct parse_data *data,
389 struct wpa_ssid *ssid)
390 {
391 return wpa_config_write_addr_list(data, ssid->bssid_blacklist,
392 ssid->num_bssid_blacklist,
393 "bssid_blacklist");
394 }
395 #endif /* NO_CONFIG_WRITE */
396
397
wpa_config_parse_bssid_whitelist(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)398 static int wpa_config_parse_bssid_whitelist(const struct parse_data *data,
399 struct wpa_ssid *ssid, int line,
400 const char *value)
401 {
402 return wpa_config_parse_addr_list(data, line, value,
403 &ssid->bssid_whitelist,
404 &ssid->num_bssid_whitelist,
405 "bssid_whitelist", 1, 1);
406 }
407
408
409 #ifndef NO_CONFIG_WRITE
wpa_config_write_bssid_whitelist(const struct parse_data * data,struct wpa_ssid * ssid)410 static char * wpa_config_write_bssid_whitelist(const struct parse_data *data,
411 struct wpa_ssid *ssid)
412 {
413 return wpa_config_write_addr_list(data, ssid->bssid_whitelist,
414 ssid->num_bssid_whitelist,
415 "bssid_whitelist");
416 }
417 #endif /* NO_CONFIG_WRITE */
418
419
wpa_config_parse_psk(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)420 static int wpa_config_parse_psk(const struct parse_data *data,
421 struct wpa_ssid *ssid, int line,
422 const char *value)
423 {
424 #ifdef CONFIG_EXT_PASSWORD
425 if (os_strncmp(value, "ext:", 4) == 0) {
426 str_clear_free(ssid->passphrase);
427 ssid->passphrase = NULL;
428 ssid->psk_set = 0;
429 os_free(ssid->ext_psk);
430 ssid->ext_psk = os_strdup(value + 4);
431 if (ssid->ext_psk == NULL)
432 return -1;
433 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
434 ssid->ext_psk);
435 return 0;
436 }
437 #endif /* CONFIG_EXT_PASSWORD */
438
439 if (*value == '"') {
440 #ifndef CONFIG_NO_PBKDF2
441 const char *pos;
442 size_t len;
443
444 value++;
445 pos = os_strrchr(value, '"');
446 if (pos)
447 len = pos - value;
448 else
449 len = os_strlen(value);
450 if (len < 8 || len > 63) {
451 wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
452 "length %lu (expected: 8..63) '%s'.",
453 line, (unsigned long) len, value);
454 return -1;
455 }
456 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
457 (u8 *) value, len);
458 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
459 os_memcmp(ssid->passphrase, value, len) == 0)
460 return 0;
461 ssid->psk_set = 0;
462 str_clear_free(ssid->passphrase);
463 ssid->passphrase = dup_binstr(value, len);
464 if (ssid->passphrase == NULL)
465 return -1;
466 return 0;
467 #else /* CONFIG_NO_PBKDF2 */
468 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
469 "supported.", line);
470 return -1;
471 #endif /* CONFIG_NO_PBKDF2 */
472 }
473
474 if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
475 value[PMK_LEN * 2] != '\0') {
476 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
477 line, value);
478 return -1;
479 }
480
481 str_clear_free(ssid->passphrase);
482 ssid->passphrase = NULL;
483
484 ssid->psk_set = 1;
485 wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
486 return 0;
487 }
488
489
490 #ifndef NO_CONFIG_WRITE
wpa_config_write_psk(const struct parse_data * data,struct wpa_ssid * ssid)491 static char * wpa_config_write_psk(const struct parse_data *data,
492 struct wpa_ssid *ssid)
493 {
494 #ifdef CONFIG_EXT_PASSWORD
495 if (ssid->ext_psk) {
496 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
497 char *buf = os_malloc(len);
498 int res;
499
500 if (buf == NULL)
501 return NULL;
502 res = os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
503 if (os_snprintf_error(len, res)) {
504 os_free(buf);
505 buf = NULL;
506 }
507 return buf;
508 }
509 #endif /* CONFIG_EXT_PASSWORD */
510
511 if (ssid->passphrase)
512 return wpa_config_write_string_ascii(
513 (const u8 *) ssid->passphrase,
514 os_strlen(ssid->passphrase));
515
516 if (ssid->psk_set)
517 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
518
519 return NULL;
520 }
521 #endif /* NO_CONFIG_WRITE */
522
523
wpa_config_parse_proto(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)524 static int wpa_config_parse_proto(const struct parse_data *data,
525 struct wpa_ssid *ssid, int line,
526 const char *value)
527 {
528 int val = 0, last, errors = 0;
529 char *start, *end, *buf;
530
531 buf = os_strdup(value);
532 if (buf == NULL)
533 return -1;
534 start = buf;
535
536 while (*start != '\0') {
537 while (*start == ' ' || *start == '\t')
538 start++;
539 if (*start == '\0')
540 break;
541 end = start;
542 while (*end != ' ' && *end != '\t' && *end != '\0')
543 end++;
544 last = *end == '\0';
545 *end = '\0';
546 if (os_strcmp(start, "WPA") == 0)
547 val |= WPA_PROTO_WPA;
548 else if (os_strcmp(start, "RSN") == 0 ||
549 os_strcmp(start, "WPA2") == 0)
550 val |= WPA_PROTO_RSN;
551 else if (os_strcmp(start, "OSEN") == 0)
552 val |= WPA_PROTO_OSEN;
553 else {
554 wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
555 line, start);
556 errors++;
557 }
558
559 if (last)
560 break;
561 start = end + 1;
562 }
563 os_free(buf);
564
565 if (val == 0) {
566 wpa_printf(MSG_ERROR,
567 "Line %d: no proto values configured.", line);
568 errors++;
569 }
570
571 wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
572 ssid->proto = val;
573 return errors ? -1 : 0;
574 }
575
576
577 #ifndef NO_CONFIG_WRITE
wpa_config_write_proto(const struct parse_data * data,struct wpa_ssid * ssid)578 static char * wpa_config_write_proto(const struct parse_data *data,
579 struct wpa_ssid *ssid)
580 {
581 int ret;
582 char *buf, *pos, *end;
583
584 pos = buf = os_zalloc(20);
585 if (buf == NULL)
586 return NULL;
587 end = buf + 20;
588
589 if (ssid->proto & WPA_PROTO_WPA) {
590 ret = os_snprintf(pos, end - pos, "%sWPA",
591 pos == buf ? "" : " ");
592 if (os_snprintf_error(end - pos, ret))
593 return buf;
594 pos += ret;
595 }
596
597 if (ssid->proto & WPA_PROTO_RSN) {
598 ret = os_snprintf(pos, end - pos, "%sRSN",
599 pos == buf ? "" : " ");
600 if (os_snprintf_error(end - pos, ret))
601 return buf;
602 pos += ret;
603 }
604
605 if (ssid->proto & WPA_PROTO_OSEN) {
606 ret = os_snprintf(pos, end - pos, "%sOSEN",
607 pos == buf ? "" : " ");
608 if (os_snprintf_error(end - pos, ret))
609 return buf;
610 pos += ret;
611 }
612
613 if (pos == buf) {
614 os_free(buf);
615 buf = NULL;
616 }
617
618 return buf;
619 }
620 #endif /* NO_CONFIG_WRITE */
621
622
wpa_config_parse_key_mgmt(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)623 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
624 struct wpa_ssid *ssid, int line,
625 const char *value)
626 {
627 int val = 0, last, errors = 0;
628 char *start, *end, *buf;
629
630 buf = os_strdup(value);
631 if (buf == NULL)
632 return -1;
633 start = buf;
634
635 while (*start != '\0') {
636 while (*start == ' ' || *start == '\t')
637 start++;
638 if (*start == '\0')
639 break;
640 end = start;
641 while (*end != ' ' && *end != '\t' && *end != '\0')
642 end++;
643 last = *end == '\0';
644 *end = '\0';
645 if (os_strcmp(start, "WPA-PSK") == 0)
646 val |= WPA_KEY_MGMT_PSK;
647 else if (os_strcmp(start, "WPA-EAP") == 0)
648 val |= WPA_KEY_MGMT_IEEE8021X;
649 else if (os_strcmp(start, "IEEE8021X") == 0)
650 val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
651 else if (os_strcmp(start, "NONE") == 0)
652 val |= WPA_KEY_MGMT_NONE;
653 else if (os_strcmp(start, "WPA-NONE") == 0)
654 val |= WPA_KEY_MGMT_WPA_NONE;
655 #ifdef CONFIG_IEEE80211R
656 else if (os_strcmp(start, "FT-PSK") == 0)
657 val |= WPA_KEY_MGMT_FT_PSK;
658 else if (os_strcmp(start, "FT-EAP") == 0)
659 val |= WPA_KEY_MGMT_FT_IEEE8021X;
660 #endif /* CONFIG_IEEE80211R */
661 #ifdef CONFIG_IEEE80211W
662 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
663 val |= WPA_KEY_MGMT_PSK_SHA256;
664 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
665 val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
666 #endif /* CONFIG_IEEE80211W */
667 #ifdef CONFIG_WPS
668 else if (os_strcmp(start, "WPS") == 0)
669 val |= WPA_KEY_MGMT_WPS;
670 #endif /* CONFIG_WPS */
671 #ifdef CONFIG_SAE
672 else if (os_strcmp(start, "SAE") == 0)
673 val |= WPA_KEY_MGMT_SAE;
674 else if (os_strcmp(start, "FT-SAE") == 0)
675 val |= WPA_KEY_MGMT_FT_SAE;
676 #endif /* CONFIG_SAE */
677 #ifdef CONFIG_HS20
678 else if (os_strcmp(start, "OSEN") == 0)
679 val |= WPA_KEY_MGMT_OSEN;
680 #endif /* CONFIG_HS20 */
681 #ifdef CONFIG_SUITEB
682 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
683 val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
684 #endif /* CONFIG_SUITEB */
685 #ifdef CONFIG_SUITEB192
686 else if (os_strcmp(start, "WPA-EAP-SUITE-B-192") == 0)
687 val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
688 #endif /* CONFIG_SUITEB192 */
689 else {
690 wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
691 line, start);
692 errors++;
693 }
694
695 if (last)
696 break;
697 start = end + 1;
698 }
699 os_free(buf);
700
701 if (val == 0) {
702 wpa_printf(MSG_ERROR,
703 "Line %d: no key_mgmt values configured.", line);
704 errors++;
705 }
706
707 wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
708 ssid->key_mgmt = val;
709 return errors ? -1 : 0;
710 }
711
712
713 #ifndef NO_CONFIG_WRITE
wpa_config_write_key_mgmt(const struct parse_data * data,struct wpa_ssid * ssid)714 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
715 struct wpa_ssid *ssid)
716 {
717 char *buf, *pos, *end;
718 int ret;
719
720 pos = buf = os_zalloc(100);
721 if (buf == NULL)
722 return NULL;
723 end = buf + 100;
724
725 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
726 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
727 pos == buf ? "" : " ");
728 if (os_snprintf_error(end - pos, ret)) {
729 end[-1] = '\0';
730 return buf;
731 }
732 pos += ret;
733 }
734
735 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
736 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
737 pos == buf ? "" : " ");
738 if (os_snprintf_error(end - pos, ret)) {
739 end[-1] = '\0';
740 return buf;
741 }
742 pos += ret;
743 }
744
745 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
746 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
747 pos == buf ? "" : " ");
748 if (os_snprintf_error(end - pos, ret)) {
749 end[-1] = '\0';
750 return buf;
751 }
752 pos += ret;
753 }
754
755 if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
756 ret = os_snprintf(pos, end - pos, "%sNONE",
757 pos == buf ? "" : " ");
758 if (os_snprintf_error(end - pos, ret)) {
759 end[-1] = '\0';
760 return buf;
761 }
762 pos += ret;
763 }
764
765 if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
766 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
767 pos == buf ? "" : " ");
768 if (os_snprintf_error(end - pos, ret)) {
769 end[-1] = '\0';
770 return buf;
771 }
772 pos += ret;
773 }
774
775 #ifdef CONFIG_IEEE80211R
776 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
777 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
778 pos == buf ? "" : " ");
779 if (os_snprintf_error(end - pos, ret)) {
780 end[-1] = '\0';
781 return buf;
782 }
783 pos += ret;
784 }
785
786 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
787 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
788 pos == buf ? "" : " ");
789 if (os_snprintf_error(end - pos, ret)) {
790 end[-1] = '\0';
791 return buf;
792 }
793 pos += ret;
794 }
795 #endif /* CONFIG_IEEE80211R */
796
797 #ifdef CONFIG_IEEE80211W
798 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
799 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
800 pos == buf ? "" : " ");
801 if (os_snprintf_error(end - pos, ret)) {
802 end[-1] = '\0';
803 return buf;
804 }
805 pos += ret;
806 }
807
808 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
809 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
810 pos == buf ? "" : " ");
811 if (os_snprintf_error(end - pos, ret)) {
812 end[-1] = '\0';
813 return buf;
814 }
815 pos += ret;
816 }
817 #endif /* CONFIG_IEEE80211W */
818
819 #ifdef CONFIG_WPS
820 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
821 ret = os_snprintf(pos, end - pos, "%sWPS",
822 pos == buf ? "" : " ");
823 if (os_snprintf_error(end - pos, ret)) {
824 end[-1] = '\0';
825 return buf;
826 }
827 pos += ret;
828 }
829 #endif /* CONFIG_WPS */
830
831 #ifdef CONFIG_SAE
832 if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
833 ret = os_snprintf(pos, end - pos, "%sSAE",
834 pos == buf ? "" : " ");
835 if (os_snprintf_error(end - pos, ret)) {
836 end[-1] = '\0';
837 return buf;
838 }
839 pos += ret;
840 }
841
842 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
843 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
844 pos == buf ? "" : " ");
845 if (os_snprintf_error(end - pos, ret)) {
846 end[-1] = '\0';
847 return buf;
848 }
849 pos += ret;
850 }
851 #endif /* CONFIG_SAE */
852
853 #ifdef CONFIG_HS20
854 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
855 ret = os_snprintf(pos, end - pos, "%sOSEN",
856 pos == buf ? "" : " ");
857 if (os_snprintf_error(end - pos, ret)) {
858 end[-1] = '\0';
859 return buf;
860 }
861 pos += ret;
862 }
863 #endif /* CONFIG_HS20 */
864
865 #ifdef CONFIG_SUITEB
866 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
867 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
868 pos == buf ? "" : " ");
869 if (os_snprintf_error(end - pos, ret)) {
870 end[-1] = '\0';
871 return buf;
872 }
873 pos += ret;
874 }
875 #endif /* CONFIG_SUITEB */
876
877 #ifdef CONFIG_SUITEB192
878 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
879 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B-192",
880 pos == buf ? "" : " ");
881 if (os_snprintf_error(end - pos, ret)) {
882 end[-1] = '\0';
883 return buf;
884 }
885 pos += ret;
886 }
887 #endif /* CONFIG_SUITEB192 */
888
889 if (pos == buf) {
890 os_free(buf);
891 buf = NULL;
892 }
893
894 return buf;
895 }
896 #endif /* NO_CONFIG_WRITE */
897
898
wpa_config_parse_cipher(int line,const char * value)899 static int wpa_config_parse_cipher(int line, const char *value)
900 {
901 int val = wpa_parse_cipher(value);
902 if (val < 0) {
903 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
904 line, value);
905 return -1;
906 }
907 if (val == 0) {
908 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
909 line);
910 return -1;
911 }
912 return val;
913 }
914
915
916 #ifndef NO_CONFIG_WRITE
wpa_config_write_cipher(int cipher)917 static char * wpa_config_write_cipher(int cipher)
918 {
919 char *buf = os_zalloc(50);
920 if (buf == NULL)
921 return NULL;
922
923 if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
924 os_free(buf);
925 return NULL;
926 }
927
928 return buf;
929 }
930 #endif /* NO_CONFIG_WRITE */
931
932
wpa_config_parse_pairwise(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)933 static int wpa_config_parse_pairwise(const struct parse_data *data,
934 struct wpa_ssid *ssid, int line,
935 const char *value)
936 {
937 int val;
938 val = wpa_config_parse_cipher(line, value);
939 if (val == -1)
940 return -1;
941 if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
942 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
943 "(0x%x).", line, val);
944 return -1;
945 }
946
947 wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
948 ssid->pairwise_cipher = val;
949 return 0;
950 }
951
952
953 #ifndef NO_CONFIG_WRITE
wpa_config_write_pairwise(const struct parse_data * data,struct wpa_ssid * ssid)954 static char * wpa_config_write_pairwise(const struct parse_data *data,
955 struct wpa_ssid *ssid)
956 {
957 return wpa_config_write_cipher(ssid->pairwise_cipher);
958 }
959 #endif /* NO_CONFIG_WRITE */
960
961
wpa_config_parse_group(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)962 static int wpa_config_parse_group(const struct parse_data *data,
963 struct wpa_ssid *ssid, int line,
964 const char *value)
965 {
966 int val;
967 val = wpa_config_parse_cipher(line, value);
968 if (val == -1)
969 return -1;
970
971 /*
972 * Backwards compatibility - filter out WEP ciphers that were previously
973 * allowed.
974 */
975 val &= ~(WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40);
976
977 if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
978 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
979 "(0x%x).", line, val);
980 return -1;
981 }
982
983 wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
984 ssid->group_cipher = val;
985 return 0;
986 }
987
988
989 #ifndef NO_CONFIG_WRITE
wpa_config_write_group(const struct parse_data * data,struct wpa_ssid * ssid)990 static char * wpa_config_write_group(const struct parse_data *data,
991 struct wpa_ssid *ssid)
992 {
993 return wpa_config_write_cipher(ssid->group_cipher);
994 }
995 #endif /* NO_CONFIG_WRITE */
996
997
wpa_config_parse_auth_alg(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)998 static int wpa_config_parse_auth_alg(const struct parse_data *data,
999 struct wpa_ssid *ssid, int line,
1000 const char *value)
1001 {
1002 int val = 0, last, errors = 0;
1003 char *start, *end, *buf;
1004
1005 buf = os_strdup(value);
1006 if (buf == NULL)
1007 return -1;
1008 start = buf;
1009
1010 while (*start != '\0') {
1011 while (*start == ' ' || *start == '\t')
1012 start++;
1013 if (*start == '\0')
1014 break;
1015 end = start;
1016 while (*end != ' ' && *end != '\t' && *end != '\0')
1017 end++;
1018 last = *end == '\0';
1019 *end = '\0';
1020 if (os_strcmp(start, "OPEN") == 0)
1021 val |= WPA_AUTH_ALG_OPEN;
1022 else if (os_strcmp(start, "SHARED") == 0)
1023 val |= WPA_AUTH_ALG_SHARED;
1024 else if (os_strcmp(start, "LEAP") == 0)
1025 val |= WPA_AUTH_ALG_LEAP;
1026 else {
1027 wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1028 line, start);
1029 errors++;
1030 }
1031
1032 if (last)
1033 break;
1034 start = end + 1;
1035 }
1036 os_free(buf);
1037
1038 if (val == 0) {
1039 wpa_printf(MSG_ERROR,
1040 "Line %d: no auth_alg values configured.", line);
1041 errors++;
1042 }
1043
1044 wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1045 ssid->auth_alg = val;
1046 return errors ? -1 : 0;
1047 }
1048
1049
1050 #ifndef NO_CONFIG_WRITE
wpa_config_write_auth_alg(const struct parse_data * data,struct wpa_ssid * ssid)1051 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1052 struct wpa_ssid *ssid)
1053 {
1054 char *buf, *pos, *end;
1055 int ret;
1056
1057 pos = buf = os_zalloc(30);
1058 if (buf == NULL)
1059 return NULL;
1060 end = buf + 30;
1061
1062 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1063 ret = os_snprintf(pos, end - pos, "%sOPEN",
1064 pos == buf ? "" : " ");
1065 if (os_snprintf_error(end - pos, ret)) {
1066 end[-1] = '\0';
1067 return buf;
1068 }
1069 pos += ret;
1070 }
1071
1072 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1073 ret = os_snprintf(pos, end - pos, "%sSHARED",
1074 pos == buf ? "" : " ");
1075 if (os_snprintf_error(end - pos, ret)) {
1076 end[-1] = '\0';
1077 return buf;
1078 }
1079 pos += ret;
1080 }
1081
1082 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1083 ret = os_snprintf(pos, end - pos, "%sLEAP",
1084 pos == buf ? "" : " ");
1085 if (os_snprintf_error(end - pos, ret)) {
1086 end[-1] = '\0';
1087 return buf;
1088 }
1089 pos += ret;
1090 }
1091
1092 if (pos == buf) {
1093 os_free(buf);
1094 buf = NULL;
1095 }
1096
1097 return buf;
1098 }
1099 #endif /* NO_CONFIG_WRITE */
1100
1101
wpa_config_parse_int_array(const char * value)1102 static int * wpa_config_parse_int_array(const char *value)
1103 {
1104 int *freqs;
1105 size_t used, len;
1106 const char *pos;
1107
1108 used = 0;
1109 len = 10;
1110 freqs = os_calloc(len + 1, sizeof(int));
1111 if (freqs == NULL)
1112 return NULL;
1113
1114 pos = value;
1115 while (pos) {
1116 while (*pos == ' ')
1117 pos++;
1118 if (used == len) {
1119 int *n;
1120 size_t i;
1121 n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1122 if (n == NULL) {
1123 os_free(freqs);
1124 return NULL;
1125 }
1126 for (i = len; i <= len * 2; i++)
1127 n[i] = 0;
1128 freqs = n;
1129 len *= 2;
1130 }
1131
1132 freqs[used] = atoi(pos);
1133 if (freqs[used] == 0)
1134 break;
1135 used++;
1136 pos = os_strchr(pos + 1, ' ');
1137 }
1138
1139 return freqs;
1140 }
1141
1142
wpa_config_parse_scan_freq(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1143 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1144 struct wpa_ssid *ssid, int line,
1145 const char *value)
1146 {
1147 int *freqs;
1148
1149 freqs = wpa_config_parse_int_array(value);
1150 if (freqs == NULL)
1151 return -1;
1152 if (freqs[0] == 0) {
1153 os_free(freqs);
1154 freqs = NULL;
1155 }
1156 os_free(ssid->scan_freq);
1157 ssid->scan_freq = freqs;
1158
1159 return 0;
1160 }
1161
1162
wpa_config_parse_freq_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1163 static int wpa_config_parse_freq_list(const struct parse_data *data,
1164 struct wpa_ssid *ssid, int line,
1165 const char *value)
1166 {
1167 int *freqs;
1168
1169 freqs = wpa_config_parse_int_array(value);
1170 if (freqs == NULL)
1171 return -1;
1172 if (freqs[0] == 0) {
1173 os_free(freqs);
1174 freqs = NULL;
1175 }
1176 os_free(ssid->freq_list);
1177 ssid->freq_list = freqs;
1178
1179 return 0;
1180 }
1181
1182
1183 #ifndef NO_CONFIG_WRITE
wpa_config_write_freqs(const struct parse_data * data,const int * freqs)1184 static char * wpa_config_write_freqs(const struct parse_data *data,
1185 const int *freqs)
1186 {
1187 char *buf, *pos, *end;
1188 int i, ret;
1189 size_t count;
1190
1191 if (freqs == NULL)
1192 return NULL;
1193
1194 count = 0;
1195 for (i = 0; freqs[i]; i++)
1196 count++;
1197
1198 pos = buf = os_zalloc(10 * count + 1);
1199 if (buf == NULL)
1200 return NULL;
1201 end = buf + 10 * count + 1;
1202
1203 for (i = 0; freqs[i]; i++) {
1204 ret = os_snprintf(pos, end - pos, "%s%u",
1205 i == 0 ? "" : " ", freqs[i]);
1206 if (os_snprintf_error(end - pos, ret)) {
1207 end[-1] = '\0';
1208 return buf;
1209 }
1210 pos += ret;
1211 }
1212
1213 return buf;
1214 }
1215
1216
wpa_config_write_scan_freq(const struct parse_data * data,struct wpa_ssid * ssid)1217 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1218 struct wpa_ssid *ssid)
1219 {
1220 return wpa_config_write_freqs(data, ssid->scan_freq);
1221 }
1222
1223
wpa_config_write_freq_list(const struct parse_data * data,struct wpa_ssid * ssid)1224 static char * wpa_config_write_freq_list(const struct parse_data *data,
1225 struct wpa_ssid *ssid)
1226 {
1227 return wpa_config_write_freqs(data, ssid->freq_list);
1228 }
1229 #endif /* NO_CONFIG_WRITE */
1230
1231
1232 #ifdef IEEE8021X_EAPOL
wpa_config_parse_eap(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1233 static int wpa_config_parse_eap(const struct parse_data *data,
1234 struct wpa_ssid *ssid, int line,
1235 const char *value)
1236 {
1237 int last, errors = 0;
1238 char *start, *end, *buf;
1239 struct eap_method_type *methods = NULL, *tmp;
1240 size_t num_methods = 0;
1241
1242 buf = os_strdup(value);
1243 if (buf == NULL)
1244 return -1;
1245 start = buf;
1246
1247 while (*start != '\0') {
1248 while (*start == ' ' || *start == '\t')
1249 start++;
1250 if (*start == '\0')
1251 break;
1252 end = start;
1253 while (*end != ' ' && *end != '\t' && *end != '\0')
1254 end++;
1255 last = *end == '\0';
1256 *end = '\0';
1257 tmp = methods;
1258 methods = os_realloc_array(methods, num_methods + 1,
1259 sizeof(*methods));
1260 if (methods == NULL) {
1261 os_free(tmp);
1262 os_free(buf);
1263 return -1;
1264 }
1265 methods[num_methods].method = eap_peer_get_type(
1266 start, &methods[num_methods].vendor);
1267 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1268 methods[num_methods].method == EAP_TYPE_NONE) {
1269 wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1270 "'%s'", line, start);
1271 wpa_printf(MSG_ERROR, "You may need to add support for"
1272 " this EAP method during wpa_supplicant\n"
1273 "build time configuration.\n"
1274 "See README for more information.");
1275 errors++;
1276 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1277 methods[num_methods].method == EAP_TYPE_LEAP)
1278 ssid->leap++;
1279 else
1280 ssid->non_leap++;
1281 num_methods++;
1282 if (last)
1283 break;
1284 start = end + 1;
1285 }
1286 os_free(buf);
1287
1288 tmp = methods;
1289 methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1290 if (methods == NULL) {
1291 os_free(tmp);
1292 return -1;
1293 }
1294 methods[num_methods].vendor = EAP_VENDOR_IETF;
1295 methods[num_methods].method = EAP_TYPE_NONE;
1296 num_methods++;
1297
1298 wpa_hexdump(MSG_MSGDUMP, "eap methods",
1299 (u8 *) methods, num_methods * sizeof(*methods));
1300 os_free(ssid->eap.eap_methods);
1301 ssid->eap.eap_methods = methods;
1302 return errors ? -1 : 0;
1303 }
1304
1305
1306 #ifndef NO_CONFIG_WRITE
wpa_config_write_eap(const struct parse_data * data,struct wpa_ssid * ssid)1307 static char * wpa_config_write_eap(const struct parse_data *data,
1308 struct wpa_ssid *ssid)
1309 {
1310 int i, ret;
1311 char *buf, *pos, *end;
1312 const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1313 const char *name;
1314
1315 if (eap_methods == NULL)
1316 return NULL;
1317
1318 pos = buf = os_zalloc(100);
1319 if (buf == NULL)
1320 return NULL;
1321 end = buf + 100;
1322
1323 for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1324 eap_methods[i].method != EAP_TYPE_NONE; i++) {
1325 name = eap_get_name(eap_methods[i].vendor,
1326 eap_methods[i].method);
1327 if (name) {
1328 ret = os_snprintf(pos, end - pos, "%s%s",
1329 pos == buf ? "" : " ", name);
1330 if (os_snprintf_error(end - pos, ret))
1331 break;
1332 pos += ret;
1333 }
1334 }
1335
1336 end[-1] = '\0';
1337
1338 return buf;
1339 }
1340 #endif /* NO_CONFIG_WRITE */
1341
1342
wpa_config_parse_password(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1343 static int wpa_config_parse_password(const struct parse_data *data,
1344 struct wpa_ssid *ssid, int line,
1345 const char *value)
1346 {
1347 u8 *hash;
1348
1349 if (os_strcmp(value, "NULL") == 0) {
1350 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1351 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1352 ssid->eap.password = NULL;
1353 ssid->eap.password_len = 0;
1354 return 0;
1355 }
1356
1357 #ifdef CONFIG_EXT_PASSWORD
1358 if (os_strncmp(value, "ext:", 4) == 0) {
1359 char *name = os_strdup(value + 4);
1360 if (name == NULL)
1361 return -1;
1362 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1363 ssid->eap.password = (u8 *) name;
1364 ssid->eap.password_len = os_strlen(name);
1365 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1366 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1367 return 0;
1368 }
1369 #endif /* CONFIG_EXT_PASSWORD */
1370
1371 if (os_strncmp(value, "hash:", 5) != 0) {
1372 char *tmp;
1373 size_t res_len;
1374
1375 tmp = wpa_config_parse_string(value, &res_len);
1376 if (tmp == NULL) {
1377 wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1378 "password.", line);
1379 return -1;
1380 }
1381 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1382 (u8 *) tmp, res_len);
1383
1384 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1385 ssid->eap.password = (u8 *) tmp;
1386 ssid->eap.password_len = res_len;
1387 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1388 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1389
1390 return 0;
1391 }
1392
1393
1394 /* NtPasswordHash: hash:<32 hex digits> */
1395 if (os_strlen(value + 5) != 2 * 16) {
1396 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1397 "(expected 32 hex digits)", line);
1398 return -1;
1399 }
1400
1401 hash = os_malloc(16);
1402 if (hash == NULL)
1403 return -1;
1404
1405 if (hexstr2bin(value + 5, hash, 16)) {
1406 os_free(hash);
1407 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1408 return -1;
1409 }
1410
1411 wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1412
1413 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1414 ssid->eap.password = hash;
1415 ssid->eap.password_len = 16;
1416 ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1417 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1418
1419 return 0;
1420 }
1421
1422
1423 #ifndef NO_CONFIG_WRITE
wpa_config_write_password(const struct parse_data * data,struct wpa_ssid * ssid)1424 static char * wpa_config_write_password(const struct parse_data *data,
1425 struct wpa_ssid *ssid)
1426 {
1427 char *buf;
1428
1429 if (ssid->eap.password == NULL)
1430 return NULL;
1431
1432 #ifdef CONFIG_EXT_PASSWORD
1433 if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1434 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1435 if (buf == NULL)
1436 return NULL;
1437 os_memcpy(buf, "ext:", 4);
1438 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1439 return buf;
1440 }
1441 #endif /* CONFIG_EXT_PASSWORD */
1442
1443 if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1444 return wpa_config_write_string(
1445 ssid->eap.password, ssid->eap.password_len);
1446 }
1447
1448 buf = os_malloc(5 + 32 + 1);
1449 if (buf == NULL)
1450 return NULL;
1451
1452 os_memcpy(buf, "hash:", 5);
1453 wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1454
1455 return buf;
1456 }
1457 #endif /* NO_CONFIG_WRITE */
1458 #endif /* IEEE8021X_EAPOL */
1459
1460
wpa_config_parse_wep_key(u8 * key,size_t * len,int line,const char * value,int idx)1461 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1462 const char *value, int idx)
1463 {
1464 char *buf, title[20];
1465 int res;
1466
1467 buf = wpa_config_parse_string(value, len);
1468 if (buf == NULL) {
1469 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1470 line, idx, value);
1471 return -1;
1472 }
1473 if (*len > MAX_WEP_KEY_LEN) {
1474 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1475 line, idx, value);
1476 os_free(buf);
1477 return -1;
1478 }
1479 if (*len && *len != 5 && *len != 13 && *len != 16) {
1480 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1481 "this network block will be ignored",
1482 line, (unsigned int) *len);
1483 }
1484 os_memcpy(key, buf, *len);
1485 str_clear_free(buf);
1486 res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1487 if (!os_snprintf_error(sizeof(title), res))
1488 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1489 return 0;
1490 }
1491
1492
wpa_config_parse_wep_key0(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1493 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1494 struct wpa_ssid *ssid, int line,
1495 const char *value)
1496 {
1497 return wpa_config_parse_wep_key(ssid->wep_key[0],
1498 &ssid->wep_key_len[0], line,
1499 value, 0);
1500 }
1501
1502
wpa_config_parse_wep_key1(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1503 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1504 struct wpa_ssid *ssid, int line,
1505 const char *value)
1506 {
1507 return wpa_config_parse_wep_key(ssid->wep_key[1],
1508 &ssid->wep_key_len[1], line,
1509 value, 1);
1510 }
1511
1512
wpa_config_parse_wep_key2(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1513 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1514 struct wpa_ssid *ssid, int line,
1515 const char *value)
1516 {
1517 return wpa_config_parse_wep_key(ssid->wep_key[2],
1518 &ssid->wep_key_len[2], line,
1519 value, 2);
1520 }
1521
1522
wpa_config_parse_wep_key3(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1523 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1524 struct wpa_ssid *ssid, int line,
1525 const char *value)
1526 {
1527 return wpa_config_parse_wep_key(ssid->wep_key[3],
1528 &ssid->wep_key_len[3], line,
1529 value, 3);
1530 }
1531
1532
1533 #ifndef NO_CONFIG_WRITE
wpa_config_write_wep_key(struct wpa_ssid * ssid,int idx)1534 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1535 {
1536 if (ssid->wep_key_len[idx] == 0)
1537 return NULL;
1538 return wpa_config_write_string(ssid->wep_key[idx],
1539 ssid->wep_key_len[idx]);
1540 }
1541
1542
wpa_config_write_wep_key0(const struct parse_data * data,struct wpa_ssid * ssid)1543 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1544 struct wpa_ssid *ssid)
1545 {
1546 return wpa_config_write_wep_key(ssid, 0);
1547 }
1548
1549
wpa_config_write_wep_key1(const struct parse_data * data,struct wpa_ssid * ssid)1550 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1551 struct wpa_ssid *ssid)
1552 {
1553 return wpa_config_write_wep_key(ssid, 1);
1554 }
1555
1556
wpa_config_write_wep_key2(const struct parse_data * data,struct wpa_ssid * ssid)1557 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1558 struct wpa_ssid *ssid)
1559 {
1560 return wpa_config_write_wep_key(ssid, 2);
1561 }
1562
1563
wpa_config_write_wep_key3(const struct parse_data * data,struct wpa_ssid * ssid)1564 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1565 struct wpa_ssid *ssid)
1566 {
1567 return wpa_config_write_wep_key(ssid, 3);
1568 }
1569 #endif /* NO_CONFIG_WRITE */
1570
1571
1572 #ifdef CONFIG_P2P
1573
wpa_config_parse_go_p2p_dev_addr(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1574 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1575 struct wpa_ssid *ssid, int line,
1576 const char *value)
1577 {
1578 if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1579 os_strcmp(value, "any") == 0) {
1580 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1581 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1582 return 0;
1583 }
1584 if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1585 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1586 line, value);
1587 return -1;
1588 }
1589 ssid->bssid_set = 1;
1590 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1591 MAC2STR(ssid->go_p2p_dev_addr));
1592 return 0;
1593 }
1594
1595
1596 #ifndef NO_CONFIG_WRITE
wpa_config_write_go_p2p_dev_addr(const struct parse_data * data,struct wpa_ssid * ssid)1597 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1598 struct wpa_ssid *ssid)
1599 {
1600 char *value;
1601 int res;
1602
1603 if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1604 return NULL;
1605
1606 value = os_malloc(20);
1607 if (value == NULL)
1608 return NULL;
1609 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1610 if (os_snprintf_error(20, res)) {
1611 os_free(value);
1612 return NULL;
1613 }
1614 value[20 - 1] = '\0';
1615 return value;
1616 }
1617 #endif /* NO_CONFIG_WRITE */
1618
1619
wpa_config_parse_p2p_client_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1620 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1621 struct wpa_ssid *ssid, int line,
1622 const char *value)
1623 {
1624 return wpa_config_parse_addr_list(data, line, value,
1625 &ssid->p2p_client_list,
1626 &ssid->num_p2p_clients,
1627 "p2p_client_list", 0, 0);
1628 }
1629
1630
1631 #ifndef NO_CONFIG_WRITE
wpa_config_write_p2p_client_list(const struct parse_data * data,struct wpa_ssid * ssid)1632 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1633 struct wpa_ssid *ssid)
1634 {
1635 return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1636 ssid->num_p2p_clients,
1637 "p2p_client_list");
1638 }
1639 #endif /* NO_CONFIG_WRITE */
1640
1641
wpa_config_parse_psk_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1642 static int wpa_config_parse_psk_list(const struct parse_data *data,
1643 struct wpa_ssid *ssid, int line,
1644 const char *value)
1645 {
1646 struct psk_list_entry *p;
1647 const char *pos;
1648
1649 p = os_zalloc(sizeof(*p));
1650 if (p == NULL)
1651 return -1;
1652
1653 pos = value;
1654 if (os_strncmp(pos, "P2P-", 4) == 0) {
1655 p->p2p = 1;
1656 pos += 4;
1657 }
1658
1659 if (hwaddr_aton(pos, p->addr)) {
1660 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1661 line, pos);
1662 os_free(p);
1663 return -1;
1664 }
1665 pos += 17;
1666 if (*pos != '-') {
1667 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1668 line, pos);
1669 os_free(p);
1670 return -1;
1671 }
1672 pos++;
1673
1674 if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1675 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1676 line, pos);
1677 os_free(p);
1678 return -1;
1679 }
1680
1681 dl_list_add(&ssid->psk_list, &p->list);
1682
1683 return 0;
1684 }
1685
1686
1687 #ifndef NO_CONFIG_WRITE
wpa_config_write_psk_list(const struct parse_data * data,struct wpa_ssid * ssid)1688 static char * wpa_config_write_psk_list(const struct parse_data *data,
1689 struct wpa_ssid *ssid)
1690 {
1691 return NULL;
1692 }
1693 #endif /* NO_CONFIG_WRITE */
1694
1695 #endif /* CONFIG_P2P */
1696
1697
1698 #ifdef CONFIG_MESH
1699
wpa_config_parse_mesh_basic_rates(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1700 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1701 struct wpa_ssid *ssid, int line,
1702 const char *value)
1703 {
1704 int *rates = wpa_config_parse_int_array(value);
1705
1706 if (rates == NULL) {
1707 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1708 line, value);
1709 return -1;
1710 }
1711 if (rates[0] == 0) {
1712 os_free(rates);
1713 rates = NULL;
1714 }
1715
1716 os_free(ssid->mesh_basic_rates);
1717 ssid->mesh_basic_rates = rates;
1718
1719 return 0;
1720 }
1721
1722
1723 #ifndef NO_CONFIG_WRITE
1724
wpa_config_write_mesh_basic_rates(const struct parse_data * data,struct wpa_ssid * ssid)1725 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1726 struct wpa_ssid *ssid)
1727 {
1728 return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1729 }
1730
1731 #endif /* NO_CONFIG_WRITE */
1732
1733 #endif /* CONFIG_MESH */
1734
1735
1736 /* Helper macros for network block parser */
1737
1738 #ifdef OFFSET
1739 #undef OFFSET
1740 #endif /* OFFSET */
1741 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1742 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1743
1744 /* STR: Define a string variable for an ASCII string; f = field name */
1745 #ifdef NO_CONFIG_WRITE
1746 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1747 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1748 #else /* NO_CONFIG_WRITE */
1749 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1750 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1751 #endif /* NO_CONFIG_WRITE */
1752 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1753 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1754 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1755 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1756
1757 /* STR_LEN: Define a string variable with a separate variable for storing the
1758 * data length. Unlike STR(), this can be used to store arbitrary binary data
1759 * (i.e., even nul termination character). */
1760 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1761 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1762 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1763 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1764 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1765
1766 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1767 * explicitly specified. */
1768 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1769 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1770 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1771
1772 #ifdef NO_CONFIG_WRITE
1773 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1774 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1775 #else /* NO_CONFIG_WRITE */
1776 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1777 OFFSET(f), (void *) 0
1778 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1779 OFFSET(eap.f), (void *) 0
1780 #endif /* NO_CONFIG_WRITE */
1781
1782 /* INT: Define an integer variable */
1783 #define INT(f) _INT(f), NULL, NULL, 0
1784 #define INTe(f) _INTe(f), NULL, NULL, 0
1785
1786 /* INT_RANGE: Define an integer variable with allowed value range */
1787 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1788
1789 /* FUNC: Define a configuration variable that uses a custom function for
1790 * parsing and writing the value. */
1791 #ifdef NO_CONFIG_WRITE
1792 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1793 #else /* NO_CONFIG_WRITE */
1794 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1795 NULL, NULL, NULL, NULL
1796 #endif /* NO_CONFIG_WRITE */
1797 #define FUNC(f) _FUNC(f), 0
1798 #define FUNC_KEY(f) _FUNC(f), 1
1799
1800 /*
1801 * Table of network configuration variables. This table is used to parse each
1802 * network configuration variable, e.g., each line in wpa_supplicant.conf file
1803 * that is inside a network block.
1804 *
1805 * This table is generated using the helper macros defined above and with
1806 * generous help from the C pre-processor. The field name is stored as a string
1807 * into .name and for STR and INT types, the offset of the target buffer within
1808 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1809 * offset to the field containing the length of the configuration variable.
1810 * .param3 and .param4 can be used to mark the allowed range (length for STR
1811 * and value for INT).
1812 *
1813 * For each configuration line in wpa_supplicant.conf, the parser goes through
1814 * this table and select the entry that matches with the field name. The parser
1815 * function (.parser) is then called to parse the actual value of the field.
1816 *
1817 * This kind of mechanism makes it easy to add new configuration parameters,
1818 * since only one line needs to be added into this table and into the
1819 * struct wpa_ssid definition if the new variable is either a string or
1820 * integer. More complex types will need to use their own parser and writer
1821 * functions.
1822 */
1823 static const struct parse_data ssid_fields[] = {
1824 { STR_RANGE(ssid, 0, SSID_MAX_LEN) },
1825 { INT_RANGE(scan_ssid, 0, 1) },
1826 { FUNC(bssid) },
1827 { FUNC(bssid_blacklist) },
1828 { FUNC(bssid_whitelist) },
1829 { FUNC_KEY(psk) },
1830 { INT(mem_only_psk) },
1831 { FUNC(proto) },
1832 { FUNC(key_mgmt) },
1833 { INT(bg_scan_period) },
1834 { FUNC(pairwise) },
1835 { FUNC(group) },
1836 { FUNC(auth_alg) },
1837 { FUNC(scan_freq) },
1838 { FUNC(freq_list) },
1839 #ifdef IEEE8021X_EAPOL
1840 { FUNC(eap) },
1841 { STR_LENe(identity) },
1842 { STR_LENe(anonymous_identity) },
1843 { FUNC_KEY(password) },
1844 { STRe(ca_cert) },
1845 { STRe(ca_path) },
1846 { STRe(client_cert) },
1847 { STRe(private_key) },
1848 { STR_KEYe(private_key_passwd) },
1849 { STRe(dh_file) },
1850 { STRe(subject_match) },
1851 { STRe(altsubject_match) },
1852 { STRe(domain_suffix_match) },
1853 { STRe(domain_match) },
1854 { STRe(ca_cert2) },
1855 { STRe(ca_path2) },
1856 { STRe(client_cert2) },
1857 { STRe(private_key2) },
1858 { STR_KEYe(private_key2_passwd) },
1859 { STRe(dh_file2) },
1860 { STRe(subject_match2) },
1861 { STRe(altsubject_match2) },
1862 { STRe(domain_suffix_match2) },
1863 { STRe(domain_match2) },
1864 { STRe(phase1) },
1865 { STRe(phase2) },
1866 { STRe(pcsc) },
1867 { STR_KEYe(pin) },
1868 { STRe(engine_id) },
1869 { STRe(key_id) },
1870 { STRe(cert_id) },
1871 { STRe(ca_cert_id) },
1872 { STR_KEYe(pin2) },
1873 { STRe(engine2_id) },
1874 { STRe(key2_id) },
1875 { STRe(cert2_id) },
1876 { STRe(ca_cert2_id) },
1877 { INTe(engine) },
1878 { INTe(engine2) },
1879 { INT(eapol_flags) },
1880 { INTe(sim_num) },
1881 { STRe(openssl_ciphers) },
1882 { INTe(erp) },
1883 #endif /* IEEE8021X_EAPOL */
1884 { FUNC_KEY(wep_key0) },
1885 { FUNC_KEY(wep_key1) },
1886 { FUNC_KEY(wep_key2) },
1887 { FUNC_KEY(wep_key3) },
1888 { INT(wep_tx_keyidx) },
1889 { INT(priority) },
1890 #ifdef IEEE8021X_EAPOL
1891 { INT(eap_workaround) },
1892 { STRe(pac_file) },
1893 { INTe(fragment_size) },
1894 { INTe(ocsp) },
1895 #endif /* IEEE8021X_EAPOL */
1896 #ifdef CONFIG_MESH
1897 { INT_RANGE(mode, 0, 5) },
1898 { INT_RANGE(no_auto_peer, 0, 1) },
1899 #else /* CONFIG_MESH */
1900 { INT_RANGE(mode, 0, 4) },
1901 #endif /* CONFIG_MESH */
1902 { INT_RANGE(proactive_key_caching, 0, 1) },
1903 { INT_RANGE(disabled, 0, 2) },
1904 { STR(id_str) },
1905 #ifdef CONFIG_IEEE80211W
1906 { INT_RANGE(ieee80211w, 0, 2) },
1907 #endif /* CONFIG_IEEE80211W */
1908 { INT_RANGE(peerkey, 0, 1) },
1909 { INT_RANGE(mixed_cell, 0, 1) },
1910 { INT_RANGE(frequency, 0, 65000) },
1911 { INT_RANGE(fixed_freq, 0, 1) },
1912 #ifdef CONFIG_MESH
1913 { FUNC(mesh_basic_rates) },
1914 { INT(dot11MeshMaxRetries) },
1915 { INT(dot11MeshRetryTimeout) },
1916 { INT(dot11MeshConfirmTimeout) },
1917 { INT(dot11MeshHoldingTimeout) },
1918 #endif /* CONFIG_MESH */
1919 { INT(wpa_ptk_rekey) },
1920 { STR(bgscan) },
1921 { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1922 #ifdef CONFIG_P2P
1923 { FUNC(go_p2p_dev_addr) },
1924 { FUNC(p2p_client_list) },
1925 { FUNC(psk_list) },
1926 #endif /* CONFIG_P2P */
1927 #ifdef CONFIG_HT_OVERRIDES
1928 { INT_RANGE(disable_ht, 0, 1) },
1929 { INT_RANGE(disable_ht40, -1, 1) },
1930 { INT_RANGE(disable_sgi, 0, 1) },
1931 { INT_RANGE(disable_ldpc, 0, 1) },
1932 { INT_RANGE(ht40_intolerant, 0, 1) },
1933 { INT_RANGE(disable_max_amsdu, -1, 1) },
1934 { INT_RANGE(ampdu_factor, -1, 3) },
1935 { INT_RANGE(ampdu_density, -1, 7) },
1936 { STR(ht_mcs) },
1937 #endif /* CONFIG_HT_OVERRIDES */
1938 #ifdef CONFIG_VHT_OVERRIDES
1939 { INT_RANGE(disable_vht, 0, 1) },
1940 { INT(vht_capa) },
1941 { INT(vht_capa_mask) },
1942 { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1943 { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1944 { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1945 { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1946 { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1947 { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1948 { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1949 { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1950 { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1951 { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1952 { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1953 { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1954 { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1955 { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1956 { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1957 { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1958 #endif /* CONFIG_VHT_OVERRIDES */
1959 { INT(ap_max_inactivity) },
1960 { INT(dtim_period) },
1961 { INT(beacon_int) },
1962 #ifdef CONFIG_MACSEC
1963 { INT_RANGE(macsec_policy, 0, 1) },
1964 #endif /* CONFIG_MACSEC */
1965 #ifdef CONFIG_HS20
1966 { INT(update_identifier) },
1967 #endif /* CONFIG_HS20 */
1968 { INT_RANGE(mac_addr, 0, 2) },
1969 };
1970
1971 #undef OFFSET
1972 #undef _STR
1973 #undef STR
1974 #undef STR_KEY
1975 #undef _STR_LEN
1976 #undef STR_LEN
1977 #undef STR_LEN_KEY
1978 #undef _STR_RANGE
1979 #undef STR_RANGE
1980 #undef STR_RANGE_KEY
1981 #undef _INT
1982 #undef INT
1983 #undef INT_RANGE
1984 #undef _FUNC
1985 #undef FUNC
1986 #undef FUNC_KEY
1987 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1988
1989
1990 /**
1991 * wpa_config_add_prio_network - Add a network to priority lists
1992 * @config: Configuration data from wpa_config_read()
1993 * @ssid: Pointer to the network configuration to be added to the list
1994 * Returns: 0 on success, -1 on failure
1995 *
1996 * This function is used to add a network block to the priority list of
1997 * networks. This must be called for each network when reading in the full
1998 * configuration. In addition, this can be used indirectly when updating
1999 * priorities by calling wpa_config_update_prio_list().
2000 */
wpa_config_add_prio_network(struct wpa_config * config,struct wpa_ssid * ssid)2001 int wpa_config_add_prio_network(struct wpa_config *config,
2002 struct wpa_ssid *ssid)
2003 {
2004 int prio;
2005 struct wpa_ssid *prev, **nlist;
2006
2007 /*
2008 * Add to an existing priority list if one is available for the
2009 * configured priority level for this network.
2010 */
2011 for (prio = 0; prio < config->num_prio; prio++) {
2012 prev = config->pssid[prio];
2013 if (prev->priority == ssid->priority) {
2014 while (prev->pnext)
2015 prev = prev->pnext;
2016 prev->pnext = ssid;
2017 return 0;
2018 }
2019 }
2020
2021 /* First network for this priority - add a new priority list */
2022 nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2023 sizeof(struct wpa_ssid *));
2024 if (nlist == NULL)
2025 return -1;
2026
2027 for (prio = 0; prio < config->num_prio; prio++) {
2028 if (nlist[prio]->priority < ssid->priority) {
2029 os_memmove(&nlist[prio + 1], &nlist[prio],
2030 (config->num_prio - prio) *
2031 sizeof(struct wpa_ssid *));
2032 break;
2033 }
2034 }
2035
2036 nlist[prio] = ssid;
2037 config->num_prio++;
2038 config->pssid = nlist;
2039
2040 return 0;
2041 }
2042
2043
2044 /**
2045 * wpa_config_update_prio_list - Update network priority list
2046 * @config: Configuration data from wpa_config_read()
2047 * Returns: 0 on success, -1 on failure
2048 *
2049 * This function is called to update the priority list of networks in the
2050 * configuration when a network is being added or removed. This is also called
2051 * if a priority for a network is changed.
2052 */
wpa_config_update_prio_list(struct wpa_config * config)2053 int wpa_config_update_prio_list(struct wpa_config *config)
2054 {
2055 struct wpa_ssid *ssid;
2056 int ret = 0;
2057
2058 os_free(config->pssid);
2059 config->pssid = NULL;
2060 config->num_prio = 0;
2061
2062 ssid = config->ssid;
2063 while (ssid) {
2064 ssid->pnext = NULL;
2065 if (wpa_config_add_prio_network(config, ssid) < 0)
2066 ret = -1;
2067 ssid = ssid->next;
2068 }
2069
2070 return ret;
2071 }
2072
2073
2074 #ifdef IEEE8021X_EAPOL
eap_peer_config_free(struct eap_peer_config * eap)2075 static void eap_peer_config_free(struct eap_peer_config *eap)
2076 {
2077 os_free(eap->eap_methods);
2078 bin_clear_free(eap->identity, eap->identity_len);
2079 os_free(eap->anonymous_identity);
2080 bin_clear_free(eap->password, eap->password_len);
2081 os_free(eap->ca_cert);
2082 os_free(eap->ca_path);
2083 os_free(eap->client_cert);
2084 os_free(eap->private_key);
2085 str_clear_free(eap->private_key_passwd);
2086 os_free(eap->dh_file);
2087 os_free(eap->subject_match);
2088 os_free(eap->altsubject_match);
2089 os_free(eap->domain_suffix_match);
2090 os_free(eap->domain_match);
2091 os_free(eap->ca_cert2);
2092 os_free(eap->ca_path2);
2093 os_free(eap->client_cert2);
2094 os_free(eap->private_key2);
2095 str_clear_free(eap->private_key2_passwd);
2096 os_free(eap->dh_file2);
2097 os_free(eap->subject_match2);
2098 os_free(eap->altsubject_match2);
2099 os_free(eap->domain_suffix_match2);
2100 os_free(eap->domain_match2);
2101 os_free(eap->phase1);
2102 os_free(eap->phase2);
2103 os_free(eap->pcsc);
2104 str_clear_free(eap->pin);
2105 os_free(eap->engine_id);
2106 os_free(eap->key_id);
2107 os_free(eap->cert_id);
2108 os_free(eap->ca_cert_id);
2109 os_free(eap->key2_id);
2110 os_free(eap->cert2_id);
2111 os_free(eap->ca_cert2_id);
2112 str_clear_free(eap->pin2);
2113 os_free(eap->engine2_id);
2114 os_free(eap->otp);
2115 os_free(eap->pending_req_otp);
2116 os_free(eap->pac_file);
2117 bin_clear_free(eap->new_password, eap->new_password_len);
2118 str_clear_free(eap->external_sim_resp);
2119 os_free(eap->openssl_ciphers);
2120 }
2121 #endif /* IEEE8021X_EAPOL */
2122
2123
2124 /**
2125 * wpa_config_free_ssid - Free network/ssid configuration data
2126 * @ssid: Configuration data for the network
2127 *
2128 * This function frees all resources allocated for the network configuration
2129 * data.
2130 */
wpa_config_free_ssid(struct wpa_ssid * ssid)2131 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2132 {
2133 struct psk_list_entry *psk;
2134
2135 os_free(ssid->ssid);
2136 str_clear_free(ssid->passphrase);
2137 os_free(ssid->ext_psk);
2138 #ifdef IEEE8021X_EAPOL
2139 eap_peer_config_free(&ssid->eap);
2140 #endif /* IEEE8021X_EAPOL */
2141 os_free(ssid->id_str);
2142 os_free(ssid->scan_freq);
2143 os_free(ssid->freq_list);
2144 os_free(ssid->bgscan);
2145 os_free(ssid->p2p_client_list);
2146 os_free(ssid->bssid_blacklist);
2147 os_free(ssid->bssid_whitelist);
2148 #ifdef CONFIG_HT_OVERRIDES
2149 os_free(ssid->ht_mcs);
2150 #endif /* CONFIG_HT_OVERRIDES */
2151 #ifdef CONFIG_MESH
2152 os_free(ssid->mesh_basic_rates);
2153 #endif /* CONFIG_MESH */
2154 while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2155 list))) {
2156 dl_list_del(&psk->list);
2157 bin_clear_free(psk, sizeof(*psk));
2158 }
2159 bin_clear_free(ssid, sizeof(*ssid));
2160 }
2161
2162
wpa_config_free_cred(struct wpa_cred * cred)2163 void wpa_config_free_cred(struct wpa_cred *cred)
2164 {
2165 size_t i;
2166
2167 os_free(cred->realm);
2168 str_clear_free(cred->username);
2169 str_clear_free(cred->password);
2170 os_free(cred->ca_cert);
2171 os_free(cred->client_cert);
2172 os_free(cred->private_key);
2173 str_clear_free(cred->private_key_passwd);
2174 os_free(cred->imsi);
2175 str_clear_free(cred->milenage);
2176 for (i = 0; i < cred->num_domain; i++)
2177 os_free(cred->domain[i]);
2178 os_free(cred->domain);
2179 os_free(cred->domain_suffix_match);
2180 os_free(cred->eap_method);
2181 os_free(cred->phase1);
2182 os_free(cred->phase2);
2183 os_free(cred->excluded_ssid);
2184 os_free(cred->roaming_partner);
2185 os_free(cred->provisioning_sp);
2186 for (i = 0; i < cred->num_req_conn_capab; i++)
2187 os_free(cred->req_conn_capab_port[i]);
2188 os_free(cred->req_conn_capab_port);
2189 os_free(cred->req_conn_capab_proto);
2190 os_free(cred);
2191 }
2192
2193
wpa_config_flush_blobs(struct wpa_config * config)2194 void wpa_config_flush_blobs(struct wpa_config *config)
2195 {
2196 #ifndef CONFIG_NO_CONFIG_BLOBS
2197 struct wpa_config_blob *blob, *prev;
2198
2199 blob = config->blobs;
2200 config->blobs = NULL;
2201 while (blob) {
2202 prev = blob;
2203 blob = blob->next;
2204 wpa_config_free_blob(prev);
2205 }
2206 #endif /* CONFIG_NO_CONFIG_BLOBS */
2207 }
2208
2209
2210 /**
2211 * wpa_config_free - Free configuration data
2212 * @config: Configuration data from wpa_config_read()
2213 *
2214 * This function frees all resources allocated for the configuration data by
2215 * wpa_config_read().
2216 */
wpa_config_free(struct wpa_config * config)2217 void wpa_config_free(struct wpa_config *config)
2218 {
2219 struct wpa_ssid *ssid, *prev = NULL;
2220 struct wpa_cred *cred, *cprev;
2221 int i;
2222
2223 ssid = config->ssid;
2224 while (ssid) {
2225 prev = ssid;
2226 ssid = ssid->next;
2227 wpa_config_free_ssid(prev);
2228 }
2229
2230 cred = config->cred;
2231 while (cred) {
2232 cprev = cred;
2233 cred = cred->next;
2234 wpa_config_free_cred(cprev);
2235 }
2236
2237 wpa_config_flush_blobs(config);
2238
2239 wpabuf_free(config->wps_vendor_ext_m1);
2240 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2241 wpabuf_free(config->wps_vendor_ext[i]);
2242 os_free(config->ctrl_interface);
2243 os_free(config->ctrl_interface_group);
2244 os_free(config->opensc_engine_path);
2245 os_free(config->pkcs11_engine_path);
2246 os_free(config->pkcs11_module_path);
2247 os_free(config->openssl_ciphers);
2248 os_free(config->pcsc_reader);
2249 str_clear_free(config->pcsc_pin);
2250 os_free(config->driver_param);
2251 os_free(config->device_name);
2252 os_free(config->manufacturer);
2253 os_free(config->model_name);
2254 os_free(config->model_number);
2255 os_free(config->serial_number);
2256 os_free(config->config_methods);
2257 os_free(config->p2p_ssid_postfix);
2258 os_free(config->pssid);
2259 os_free(config->p2p_pref_chan);
2260 os_free(config->p2p_no_go_freq.range);
2261 os_free(config->autoscan);
2262 os_free(config->freq_list);
2263 wpabuf_free(config->wps_nfc_dh_pubkey);
2264 wpabuf_free(config->wps_nfc_dh_privkey);
2265 wpabuf_free(config->wps_nfc_dev_pw);
2266 os_free(config->ext_password_backend);
2267 os_free(config->sae_groups);
2268 wpabuf_free(config->ap_vendor_elements);
2269 os_free(config->osu_dir);
2270 os_free(config->bgscan);
2271 os_free(config->wowlan_triggers);
2272 os_free(config);
2273 }
2274
2275
2276 /**
2277 * wpa_config_foreach_network - Iterate over each configured network
2278 * @config: Configuration data from wpa_config_read()
2279 * @func: Callback function to process each network
2280 * @arg: Opaque argument to pass to callback function
2281 *
2282 * Iterate over the set of configured networks calling the specified
2283 * function for each item. We guard against callbacks removing the
2284 * supplied network.
2285 */
wpa_config_foreach_network(struct wpa_config * config,void (* func)(void *,struct wpa_ssid *),void * arg)2286 void wpa_config_foreach_network(struct wpa_config *config,
2287 void (*func)(void *, struct wpa_ssid *),
2288 void *arg)
2289 {
2290 struct wpa_ssid *ssid, *next;
2291
2292 ssid = config->ssid;
2293 while (ssid) {
2294 next = ssid->next;
2295 func(arg, ssid);
2296 ssid = next;
2297 }
2298 }
2299
2300
2301 /**
2302 * wpa_config_get_network - Get configured network based on id
2303 * @config: Configuration data from wpa_config_read()
2304 * @id: Unique network id to search for
2305 * Returns: Network configuration or %NULL if not found
2306 */
wpa_config_get_network(struct wpa_config * config,int id)2307 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2308 {
2309 struct wpa_ssid *ssid;
2310
2311 ssid = config->ssid;
2312 while (ssid) {
2313 if (id == ssid->id)
2314 break;
2315 ssid = ssid->next;
2316 }
2317
2318 return ssid;
2319 }
2320
2321
2322 /**
2323 * wpa_config_add_network - Add a new network with empty configuration
2324 * @config: Configuration data from wpa_config_read()
2325 * Returns: The new network configuration or %NULL if operation failed
2326 */
wpa_config_add_network(struct wpa_config * config)2327 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2328 {
2329 int id;
2330 struct wpa_ssid *ssid, *last = NULL;
2331
2332 id = -1;
2333 ssid = config->ssid;
2334 while (ssid) {
2335 if (ssid->id > id)
2336 id = ssid->id;
2337 last = ssid;
2338 ssid = ssid->next;
2339 }
2340 id++;
2341
2342 ssid = os_zalloc(sizeof(*ssid));
2343 if (ssid == NULL)
2344 return NULL;
2345 ssid->id = id;
2346 dl_list_init(&ssid->psk_list);
2347 if (last)
2348 last->next = ssid;
2349 else
2350 config->ssid = ssid;
2351
2352 wpa_config_update_prio_list(config);
2353
2354 return ssid;
2355 }
2356
2357
2358 /**
2359 * wpa_config_remove_network - Remove a configured network based on id
2360 * @config: Configuration data from wpa_config_read()
2361 * @id: Unique network id to search for
2362 * Returns: 0 on success, or -1 if the network was not found
2363 */
wpa_config_remove_network(struct wpa_config * config,int id)2364 int wpa_config_remove_network(struct wpa_config *config, int id)
2365 {
2366 struct wpa_ssid *ssid, *prev = NULL;
2367
2368 ssid = config->ssid;
2369 while (ssid) {
2370 if (id == ssid->id)
2371 break;
2372 prev = ssid;
2373 ssid = ssid->next;
2374 }
2375
2376 if (ssid == NULL)
2377 return -1;
2378
2379 if (prev)
2380 prev->next = ssid->next;
2381 else
2382 config->ssid = ssid->next;
2383
2384 wpa_config_update_prio_list(config);
2385 wpa_config_free_ssid(ssid);
2386 return 0;
2387 }
2388
2389
2390 /**
2391 * wpa_config_set_network_defaults - Set network default values
2392 * @ssid: Pointer to network configuration data
2393 */
wpa_config_set_network_defaults(struct wpa_ssid * ssid)2394 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2395 {
2396 ssid->proto = DEFAULT_PROTO;
2397 ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2398 ssid->group_cipher = DEFAULT_GROUP;
2399 ssid->key_mgmt = DEFAULT_KEY_MGMT;
2400 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2401 #ifdef IEEE8021X_EAPOL
2402 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2403 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2404 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2405 ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2406 #endif /* IEEE8021X_EAPOL */
2407 #ifdef CONFIG_MESH
2408 ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2409 ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2410 ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2411 ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2412 #endif /* CONFIG_MESH */
2413 #ifdef CONFIG_HT_OVERRIDES
2414 ssid->disable_ht = DEFAULT_DISABLE_HT;
2415 ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2416 ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2417 ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2418 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2419 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2420 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2421 #endif /* CONFIG_HT_OVERRIDES */
2422 #ifdef CONFIG_VHT_OVERRIDES
2423 ssid->vht_rx_mcs_nss_1 = -1;
2424 ssid->vht_rx_mcs_nss_2 = -1;
2425 ssid->vht_rx_mcs_nss_3 = -1;
2426 ssid->vht_rx_mcs_nss_4 = -1;
2427 ssid->vht_rx_mcs_nss_5 = -1;
2428 ssid->vht_rx_mcs_nss_6 = -1;
2429 ssid->vht_rx_mcs_nss_7 = -1;
2430 ssid->vht_rx_mcs_nss_8 = -1;
2431 ssid->vht_tx_mcs_nss_1 = -1;
2432 ssid->vht_tx_mcs_nss_2 = -1;
2433 ssid->vht_tx_mcs_nss_3 = -1;
2434 ssid->vht_tx_mcs_nss_4 = -1;
2435 ssid->vht_tx_mcs_nss_5 = -1;
2436 ssid->vht_tx_mcs_nss_6 = -1;
2437 ssid->vht_tx_mcs_nss_7 = -1;
2438 ssid->vht_tx_mcs_nss_8 = -1;
2439 #endif /* CONFIG_VHT_OVERRIDES */
2440 ssid->proactive_key_caching = -1;
2441 #ifdef CONFIG_IEEE80211W
2442 ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2443 #endif /* CONFIG_IEEE80211W */
2444 ssid->mac_addr = -1;
2445 }
2446
2447
2448 /**
2449 * wpa_config_set - Set a variable in network configuration
2450 * @ssid: Pointer to network configuration data
2451 * @var: Variable name, e.g., "ssid"
2452 * @value: Variable value
2453 * @line: Line number in configuration file or 0 if not used
2454 * Returns: 0 on success, -1 on failure
2455 *
2456 * This function can be used to set network configuration variables based on
2457 * both the configuration file and management interface input. The value
2458 * parameter must be in the same format as the text-based configuration file is
2459 * using. For example, strings are using double quotation marks.
2460 */
wpa_config_set(struct wpa_ssid * ssid,const char * var,const char * value,int line)2461 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2462 int line)
2463 {
2464 size_t i;
2465 int ret = 0;
2466
2467 if (ssid == NULL || var == NULL || value == NULL)
2468 return -1;
2469
2470 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2471 const struct parse_data *field = &ssid_fields[i];
2472 if (os_strcmp(var, field->name) != 0)
2473 continue;
2474
2475 if (field->parser(field, ssid, line, value)) {
2476 if (line) {
2477 wpa_printf(MSG_ERROR, "Line %d: failed to "
2478 "parse %s '%s'.", line, var, value);
2479 }
2480 ret = -1;
2481 }
2482 break;
2483 }
2484 if (i == NUM_SSID_FIELDS) {
2485 if (line) {
2486 wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2487 "'%s'.", line, var);
2488 }
2489 ret = -1;
2490 }
2491
2492 return ret;
2493 }
2494
2495
wpa_config_set_quoted(struct wpa_ssid * ssid,const char * var,const char * value)2496 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2497 const char *value)
2498 {
2499 size_t len;
2500 char *buf;
2501 int ret;
2502
2503 len = os_strlen(value);
2504 buf = os_malloc(len + 3);
2505 if (buf == NULL)
2506 return -1;
2507 buf[0] = '"';
2508 os_memcpy(buf + 1, value, len);
2509 buf[len + 1] = '"';
2510 buf[len + 2] = '\0';
2511 ret = wpa_config_set(ssid, var, buf, 0);
2512 os_free(buf);
2513 return ret;
2514 }
2515
2516
2517 /**
2518 * wpa_config_get_all - Get all options from network configuration
2519 * @ssid: Pointer to network configuration data
2520 * @get_keys: Determines if keys/passwords will be included in returned list
2521 * (if they may be exported)
2522 * Returns: %NULL terminated list of all set keys and their values in the form
2523 * of [key1, val1, key2, val2, ... , NULL]
2524 *
2525 * This function can be used to get list of all configured network properties.
2526 * The caller is responsible for freeing the returned list and all its
2527 * elements.
2528 */
wpa_config_get_all(struct wpa_ssid * ssid,int get_keys)2529 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2530 {
2531 #ifdef NO_CONFIG_WRITE
2532 return NULL;
2533 #else /* NO_CONFIG_WRITE */
2534 const struct parse_data *field;
2535 char *key, *value;
2536 size_t i;
2537 char **props;
2538 int fields_num;
2539
2540 get_keys = get_keys && ssid->export_keys;
2541
2542 props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2543 if (!props)
2544 return NULL;
2545
2546 fields_num = 0;
2547 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2548 field = &ssid_fields[i];
2549 if (field->key_data && !get_keys)
2550 continue;
2551 value = field->writer(field, ssid);
2552 if (value == NULL)
2553 continue;
2554 if (os_strlen(value) == 0) {
2555 os_free(value);
2556 continue;
2557 }
2558
2559 key = os_strdup(field->name);
2560 if (key == NULL) {
2561 os_free(value);
2562 goto err;
2563 }
2564
2565 props[fields_num * 2] = key;
2566 props[fields_num * 2 + 1] = value;
2567
2568 fields_num++;
2569 }
2570
2571 return props;
2572
2573 err:
2574 value = *props;
2575 while (value)
2576 os_free(value++);
2577 os_free(props);
2578 return NULL;
2579 #endif /* NO_CONFIG_WRITE */
2580 }
2581
2582
2583 #ifndef NO_CONFIG_WRITE
2584 /**
2585 * wpa_config_get - Get a variable in network configuration
2586 * @ssid: Pointer to network configuration data
2587 * @var: Variable name, e.g., "ssid"
2588 * Returns: Value of the variable or %NULL on failure
2589 *
2590 * This function can be used to get network configuration variables. The
2591 * returned value is a copy of the configuration variable in text format, i.e,.
2592 * the same format that the text-based configuration file and wpa_config_set()
2593 * are using for the value. The caller is responsible for freeing the returned
2594 * value.
2595 */
wpa_config_get(struct wpa_ssid * ssid,const char * var)2596 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2597 {
2598 size_t i;
2599
2600 if (ssid == NULL || var == NULL)
2601 return NULL;
2602
2603 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2604 const struct parse_data *field = &ssid_fields[i];
2605 if (os_strcmp(var, field->name) == 0) {
2606 char *ret = field->writer(field, ssid);
2607 if (ret != NULL && (os_strchr(ret, '\r') != NULL ||
2608 os_strchr(ret, '\n') != NULL)) {
2609 wpa_printf(MSG_ERROR,
2610 "Found newline in value for %s; "
2611 "not returning it", var);
2612 os_free(ret);
2613 ret = NULL;
2614 }
2615 return ret;
2616 }
2617 }
2618
2619 return NULL;
2620 }
2621
2622
2623 /**
2624 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2625 * @ssid: Pointer to network configuration data
2626 * @var: Variable name, e.g., "ssid"
2627 * Returns: Value of the variable or %NULL on failure
2628 *
2629 * This function can be used to get network configuration variable like
2630 * wpa_config_get(). The only difference is that this functions does not expose
2631 * key/password material from the configuration. In case a key/password field
2632 * is requested, the returned value is an empty string or %NULL if the variable
2633 * is not set or "*" if the variable is set (regardless of its value). The
2634 * returned value is a copy of the configuration variable in text format, i.e,.
2635 * the same format that the text-based configuration file and wpa_config_set()
2636 * are using for the value. The caller is responsible for freeing the returned
2637 * value.
2638 */
wpa_config_get_no_key(struct wpa_ssid * ssid,const char * var)2639 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2640 {
2641 size_t i;
2642
2643 if (ssid == NULL || var == NULL)
2644 return NULL;
2645
2646 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2647 const struct parse_data *field = &ssid_fields[i];
2648 if (os_strcmp(var, field->name) == 0) {
2649 char *res = field->writer(field, ssid);
2650 if (field->key_data) {
2651 if (res && res[0]) {
2652 wpa_printf(MSG_DEBUG, "Do not allow "
2653 "key_data field to be "
2654 "exposed");
2655 str_clear_free(res);
2656 return os_strdup("*");
2657 }
2658
2659 os_free(res);
2660 return NULL;
2661 }
2662 return res;
2663 }
2664 }
2665
2666 return NULL;
2667 }
2668 #endif /* NO_CONFIG_WRITE */
2669
2670
2671 /**
2672 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2673 * @ssid: Pointer to network configuration data
2674 *
2675 * This function must be called to update WPA PSK when either SSID or the
2676 * passphrase has changed for the network configuration.
2677 */
wpa_config_update_psk(struct wpa_ssid * ssid)2678 void wpa_config_update_psk(struct wpa_ssid *ssid)
2679 {
2680 #ifndef CONFIG_NO_PBKDF2
2681 pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2682 ssid->psk, PMK_LEN);
2683 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2684 ssid->psk, PMK_LEN);
2685 ssid->psk_set = 1;
2686 #endif /* CONFIG_NO_PBKDF2 */
2687 }
2688
2689
wpa_config_set_cred_req_conn_capab(struct wpa_cred * cred,const char * value)2690 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2691 const char *value)
2692 {
2693 u8 *proto;
2694 int **port;
2695 int *ports, *nports;
2696 const char *pos;
2697 unsigned int num_ports;
2698
2699 proto = os_realloc_array(cred->req_conn_capab_proto,
2700 cred->num_req_conn_capab + 1, sizeof(u8));
2701 if (proto == NULL)
2702 return -1;
2703 cred->req_conn_capab_proto = proto;
2704
2705 port = os_realloc_array(cred->req_conn_capab_port,
2706 cred->num_req_conn_capab + 1, sizeof(int *));
2707 if (port == NULL)
2708 return -1;
2709 cred->req_conn_capab_port = port;
2710
2711 proto[cred->num_req_conn_capab] = atoi(value);
2712
2713 pos = os_strchr(value, ':');
2714 if (pos == NULL) {
2715 port[cred->num_req_conn_capab] = NULL;
2716 cred->num_req_conn_capab++;
2717 return 0;
2718 }
2719 pos++;
2720
2721 ports = NULL;
2722 num_ports = 0;
2723
2724 while (*pos) {
2725 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2726 if (nports == NULL) {
2727 os_free(ports);
2728 return -1;
2729 }
2730 ports = nports;
2731 ports[num_ports++] = atoi(pos);
2732
2733 pos = os_strchr(pos, ',');
2734 if (pos == NULL)
2735 break;
2736 pos++;
2737 }
2738
2739 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2740 if (nports == NULL) {
2741 os_free(ports);
2742 return -1;
2743 }
2744 ports = nports;
2745 ports[num_ports] = -1;
2746
2747 port[cred->num_req_conn_capab] = ports;
2748 cred->num_req_conn_capab++;
2749 return 0;
2750 }
2751
2752
wpa_config_set_cred(struct wpa_cred * cred,const char * var,const char * value,int line)2753 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2754 const char *value, int line)
2755 {
2756 char *val;
2757 size_t len;
2758
2759 if (os_strcmp(var, "temporary") == 0) {
2760 cred->temporary = atoi(value);
2761 return 0;
2762 }
2763
2764 if (os_strcmp(var, "priority") == 0) {
2765 cred->priority = atoi(value);
2766 return 0;
2767 }
2768
2769 if (os_strcmp(var, "sp_priority") == 0) {
2770 int prio = atoi(value);
2771 if (prio < 0 || prio > 255)
2772 return -1;
2773 cred->sp_priority = prio;
2774 return 0;
2775 }
2776
2777 if (os_strcmp(var, "pcsc") == 0) {
2778 cred->pcsc = atoi(value);
2779 return 0;
2780 }
2781
2782 if (os_strcmp(var, "eap") == 0) {
2783 struct eap_method_type method;
2784 method.method = eap_peer_get_type(value, &method.vendor);
2785 if (method.vendor == EAP_VENDOR_IETF &&
2786 method.method == EAP_TYPE_NONE) {
2787 wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2788 "for a credential", line, value);
2789 return -1;
2790 }
2791 os_free(cred->eap_method);
2792 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2793 if (cred->eap_method == NULL)
2794 return -1;
2795 os_memcpy(cred->eap_method, &method, sizeof(method));
2796 return 0;
2797 }
2798
2799 if (os_strcmp(var, "password") == 0 &&
2800 os_strncmp(value, "ext:", 4) == 0) {
2801 str_clear_free(cred->password);
2802 cred->password = os_strdup(value);
2803 cred->ext_password = 1;
2804 return 0;
2805 }
2806
2807 if (os_strcmp(var, "update_identifier") == 0) {
2808 cred->update_identifier = atoi(value);
2809 return 0;
2810 }
2811
2812 if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2813 cred->min_dl_bandwidth_home = atoi(value);
2814 return 0;
2815 }
2816
2817 if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2818 cred->min_ul_bandwidth_home = atoi(value);
2819 return 0;
2820 }
2821
2822 if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2823 cred->min_dl_bandwidth_roaming = atoi(value);
2824 return 0;
2825 }
2826
2827 if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2828 cred->min_ul_bandwidth_roaming = atoi(value);
2829 return 0;
2830 }
2831
2832 if (os_strcmp(var, "max_bss_load") == 0) {
2833 cred->max_bss_load = atoi(value);
2834 return 0;
2835 }
2836
2837 if (os_strcmp(var, "req_conn_capab") == 0)
2838 return wpa_config_set_cred_req_conn_capab(cred, value);
2839
2840 if (os_strcmp(var, "ocsp") == 0) {
2841 cred->ocsp = atoi(value);
2842 return 0;
2843 }
2844
2845 if (os_strcmp(var, "sim_num") == 0) {
2846 cred->sim_num = atoi(value);
2847 return 0;
2848 }
2849
2850 val = wpa_config_parse_string(value, &len);
2851 if (val == NULL) {
2852 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2853 "value '%s'.", line, var, value);
2854 return -1;
2855 }
2856
2857 if (os_strcmp(var, "realm") == 0) {
2858 os_free(cred->realm);
2859 cred->realm = val;
2860 return 0;
2861 }
2862
2863 if (os_strcmp(var, "username") == 0) {
2864 str_clear_free(cred->username);
2865 cred->username = val;
2866 return 0;
2867 }
2868
2869 if (os_strcmp(var, "password") == 0) {
2870 str_clear_free(cred->password);
2871 cred->password = val;
2872 cred->ext_password = 0;
2873 return 0;
2874 }
2875
2876 if (os_strcmp(var, "ca_cert") == 0) {
2877 os_free(cred->ca_cert);
2878 cred->ca_cert = val;
2879 return 0;
2880 }
2881
2882 if (os_strcmp(var, "client_cert") == 0) {
2883 os_free(cred->client_cert);
2884 cred->client_cert = val;
2885 return 0;
2886 }
2887
2888 if (os_strcmp(var, "private_key") == 0) {
2889 os_free(cred->private_key);
2890 cred->private_key = val;
2891 return 0;
2892 }
2893
2894 if (os_strcmp(var, "private_key_passwd") == 0) {
2895 str_clear_free(cred->private_key_passwd);
2896 cred->private_key_passwd = val;
2897 return 0;
2898 }
2899
2900 if (os_strcmp(var, "imsi") == 0) {
2901 os_free(cred->imsi);
2902 cred->imsi = val;
2903 return 0;
2904 }
2905
2906 if (os_strcmp(var, "milenage") == 0) {
2907 str_clear_free(cred->milenage);
2908 cred->milenage = val;
2909 return 0;
2910 }
2911
2912 if (os_strcmp(var, "domain_suffix_match") == 0) {
2913 os_free(cred->domain_suffix_match);
2914 cred->domain_suffix_match = val;
2915 return 0;
2916 }
2917
2918 if (os_strcmp(var, "domain") == 0) {
2919 char **new_domain;
2920 new_domain = os_realloc_array(cred->domain,
2921 cred->num_domain + 1,
2922 sizeof(char *));
2923 if (new_domain == NULL) {
2924 os_free(val);
2925 return -1;
2926 }
2927 new_domain[cred->num_domain++] = val;
2928 cred->domain = new_domain;
2929 return 0;
2930 }
2931
2932 if (os_strcmp(var, "phase1") == 0) {
2933 os_free(cred->phase1);
2934 cred->phase1 = val;
2935 return 0;
2936 }
2937
2938 if (os_strcmp(var, "phase2") == 0) {
2939 os_free(cred->phase2);
2940 cred->phase2 = val;
2941 return 0;
2942 }
2943
2944 if (os_strcmp(var, "roaming_consortium") == 0) {
2945 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2946 wpa_printf(MSG_ERROR, "Line %d: invalid "
2947 "roaming_consortium length %d (3..15 "
2948 "expected)", line, (int) len);
2949 os_free(val);
2950 return -1;
2951 }
2952 os_memcpy(cred->roaming_consortium, val, len);
2953 cred->roaming_consortium_len = len;
2954 os_free(val);
2955 return 0;
2956 }
2957
2958 if (os_strcmp(var, "required_roaming_consortium") == 0) {
2959 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2960 {
2961 wpa_printf(MSG_ERROR, "Line %d: invalid "
2962 "required_roaming_consortium length %d "
2963 "(3..15 expected)", line, (int) len);
2964 os_free(val);
2965 return -1;
2966 }
2967 os_memcpy(cred->required_roaming_consortium, val, len);
2968 cred->required_roaming_consortium_len = len;
2969 os_free(val);
2970 return 0;
2971 }
2972
2973 if (os_strcmp(var, "excluded_ssid") == 0) {
2974 struct excluded_ssid *e;
2975
2976 if (len > SSID_MAX_LEN) {
2977 wpa_printf(MSG_ERROR, "Line %d: invalid "
2978 "excluded_ssid length %d", line, (int) len);
2979 os_free(val);
2980 return -1;
2981 }
2982
2983 e = os_realloc_array(cred->excluded_ssid,
2984 cred->num_excluded_ssid + 1,
2985 sizeof(struct excluded_ssid));
2986 if (e == NULL) {
2987 os_free(val);
2988 return -1;
2989 }
2990 cred->excluded_ssid = e;
2991
2992 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2993 os_memcpy(e->ssid, val, len);
2994 e->ssid_len = len;
2995
2996 os_free(val);
2997
2998 return 0;
2999 }
3000
3001 if (os_strcmp(var, "roaming_partner") == 0) {
3002 struct roaming_partner *p;
3003 char *pos;
3004
3005 p = os_realloc_array(cred->roaming_partner,
3006 cred->num_roaming_partner + 1,
3007 sizeof(struct roaming_partner));
3008 if (p == NULL) {
3009 os_free(val);
3010 return -1;
3011 }
3012 cred->roaming_partner = p;
3013
3014 p = &cred->roaming_partner[cred->num_roaming_partner];
3015
3016 pos = os_strchr(val, ',');
3017 if (pos == NULL) {
3018 os_free(val);
3019 return -1;
3020 }
3021 *pos++ = '\0';
3022 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3023 os_free(val);
3024 return -1;
3025 }
3026 os_memcpy(p->fqdn, val, pos - val);
3027
3028 p->exact_match = atoi(pos);
3029
3030 pos = os_strchr(pos, ',');
3031 if (pos == NULL) {
3032 os_free(val);
3033 return -1;
3034 }
3035 *pos++ = '\0';
3036
3037 p->priority = atoi(pos);
3038
3039 pos = os_strchr(pos, ',');
3040 if (pos == NULL) {
3041 os_free(val);
3042 return -1;
3043 }
3044 *pos++ = '\0';
3045
3046 if (os_strlen(pos) >= sizeof(p->country)) {
3047 os_free(val);
3048 return -1;
3049 }
3050 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3051
3052 cred->num_roaming_partner++;
3053 os_free(val);
3054
3055 return 0;
3056 }
3057
3058 if (os_strcmp(var, "provisioning_sp") == 0) {
3059 os_free(cred->provisioning_sp);
3060 cred->provisioning_sp = val;
3061 return 0;
3062 }
3063
3064 if (line) {
3065 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3066 line, var);
3067 }
3068
3069 os_free(val);
3070
3071 return -1;
3072 }
3073
3074
alloc_int_str(int val)3075 static char * alloc_int_str(int val)
3076 {
3077 const unsigned int bufsize = 20;
3078 char *buf;
3079 int res;
3080
3081 buf = os_malloc(bufsize);
3082 if (buf == NULL)
3083 return NULL;
3084 res = os_snprintf(buf, bufsize, "%d", val);
3085 if (os_snprintf_error(bufsize, res)) {
3086 os_free(buf);
3087 buf = NULL;
3088 }
3089 return buf;
3090 }
3091
3092
alloc_strdup(const char * str)3093 static char * alloc_strdup(const char *str)
3094 {
3095 if (str == NULL)
3096 return NULL;
3097 return os_strdup(str);
3098 }
3099
3100
wpa_config_get_cred_no_key(struct wpa_cred * cred,const char * var)3101 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3102 {
3103 if (os_strcmp(var, "temporary") == 0)
3104 return alloc_int_str(cred->temporary);
3105
3106 if (os_strcmp(var, "priority") == 0)
3107 return alloc_int_str(cred->priority);
3108
3109 if (os_strcmp(var, "sp_priority") == 0)
3110 return alloc_int_str(cred->sp_priority);
3111
3112 if (os_strcmp(var, "pcsc") == 0)
3113 return alloc_int_str(cred->pcsc);
3114
3115 if (os_strcmp(var, "eap") == 0) {
3116 if (!cred->eap_method)
3117 return NULL;
3118 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3119 cred->eap_method[0].method));
3120 }
3121
3122 if (os_strcmp(var, "update_identifier") == 0)
3123 return alloc_int_str(cred->update_identifier);
3124
3125 if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3126 return alloc_int_str(cred->min_dl_bandwidth_home);
3127
3128 if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3129 return alloc_int_str(cred->min_ul_bandwidth_home);
3130
3131 if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3132 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3133
3134 if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3135 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3136
3137 if (os_strcmp(var, "max_bss_load") == 0)
3138 return alloc_int_str(cred->max_bss_load);
3139
3140 if (os_strcmp(var, "req_conn_capab") == 0) {
3141 unsigned int i;
3142 char *buf, *end, *pos;
3143 int ret;
3144
3145 if (!cred->num_req_conn_capab)
3146 return NULL;
3147
3148 buf = os_malloc(4000);
3149 if (buf == NULL)
3150 return NULL;
3151 pos = buf;
3152 end = pos + 4000;
3153 for (i = 0; i < cred->num_req_conn_capab; i++) {
3154 int *ports;
3155
3156 ret = os_snprintf(pos, end - pos, "%s%u",
3157 i > 0 ? "\n" : "",
3158 cred->req_conn_capab_proto[i]);
3159 if (os_snprintf_error(end - pos, ret))
3160 return buf;
3161 pos += ret;
3162
3163 ports = cred->req_conn_capab_port[i];
3164 if (ports) {
3165 int j;
3166 for (j = 0; ports[j] != -1; j++) {
3167 ret = os_snprintf(pos, end - pos,
3168 "%s%d",
3169 j > 0 ? "," : ":",
3170 ports[j]);
3171 if (os_snprintf_error(end - pos, ret))
3172 return buf;
3173 pos += ret;
3174 }
3175 }
3176 }
3177
3178 return buf;
3179 }
3180
3181 if (os_strcmp(var, "ocsp") == 0)
3182 return alloc_int_str(cred->ocsp);
3183
3184 if (os_strcmp(var, "realm") == 0)
3185 return alloc_strdup(cred->realm);
3186
3187 if (os_strcmp(var, "username") == 0)
3188 return alloc_strdup(cred->username);
3189
3190 if (os_strcmp(var, "password") == 0) {
3191 if (!cred->password)
3192 return NULL;
3193 return alloc_strdup("*");
3194 }
3195
3196 if (os_strcmp(var, "ca_cert") == 0)
3197 return alloc_strdup(cred->ca_cert);
3198
3199 if (os_strcmp(var, "client_cert") == 0)
3200 return alloc_strdup(cred->client_cert);
3201
3202 if (os_strcmp(var, "private_key") == 0)
3203 return alloc_strdup(cred->private_key);
3204
3205 if (os_strcmp(var, "private_key_passwd") == 0) {
3206 if (!cred->private_key_passwd)
3207 return NULL;
3208 return alloc_strdup("*");
3209 }
3210
3211 if (os_strcmp(var, "imsi") == 0)
3212 return alloc_strdup(cred->imsi);
3213
3214 if (os_strcmp(var, "milenage") == 0) {
3215 if (!(cred->milenage))
3216 return NULL;
3217 return alloc_strdup("*");
3218 }
3219
3220 if (os_strcmp(var, "domain_suffix_match") == 0)
3221 return alloc_strdup(cred->domain_suffix_match);
3222
3223 if (os_strcmp(var, "domain") == 0) {
3224 unsigned int i;
3225 char *buf, *end, *pos;
3226 int ret;
3227
3228 if (!cred->num_domain)
3229 return NULL;
3230
3231 buf = os_malloc(4000);
3232 if (buf == NULL)
3233 return NULL;
3234 pos = buf;
3235 end = pos + 4000;
3236
3237 for (i = 0; i < cred->num_domain; i++) {
3238 ret = os_snprintf(pos, end - pos, "%s%s",
3239 i > 0 ? "\n" : "", cred->domain[i]);
3240 if (os_snprintf_error(end - pos, ret))
3241 return buf;
3242 pos += ret;
3243 }
3244
3245 return buf;
3246 }
3247
3248 if (os_strcmp(var, "phase1") == 0)
3249 return alloc_strdup(cred->phase1);
3250
3251 if (os_strcmp(var, "phase2") == 0)
3252 return alloc_strdup(cred->phase2);
3253
3254 if (os_strcmp(var, "roaming_consortium") == 0) {
3255 size_t buflen;
3256 char *buf;
3257
3258 if (!cred->roaming_consortium_len)
3259 return NULL;
3260 buflen = cred->roaming_consortium_len * 2 + 1;
3261 buf = os_malloc(buflen);
3262 if (buf == NULL)
3263 return NULL;
3264 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3265 cred->roaming_consortium_len);
3266 return buf;
3267 }
3268
3269 if (os_strcmp(var, "required_roaming_consortium") == 0) {
3270 size_t buflen;
3271 char *buf;
3272
3273 if (!cred->required_roaming_consortium_len)
3274 return NULL;
3275 buflen = cred->required_roaming_consortium_len * 2 + 1;
3276 buf = os_malloc(buflen);
3277 if (buf == NULL)
3278 return NULL;
3279 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3280 cred->required_roaming_consortium_len);
3281 return buf;
3282 }
3283
3284 if (os_strcmp(var, "excluded_ssid") == 0) {
3285 unsigned int i;
3286 char *buf, *end, *pos;
3287
3288 if (!cred->num_excluded_ssid)
3289 return NULL;
3290
3291 buf = os_malloc(4000);
3292 if (buf == NULL)
3293 return NULL;
3294 pos = buf;
3295 end = pos + 4000;
3296
3297 for (i = 0; i < cred->num_excluded_ssid; i++) {
3298 struct excluded_ssid *e;
3299 int ret;
3300
3301 e = &cred->excluded_ssid[i];
3302 ret = os_snprintf(pos, end - pos, "%s%s",
3303 i > 0 ? "\n" : "",
3304 wpa_ssid_txt(e->ssid, e->ssid_len));
3305 if (os_snprintf_error(end - pos, ret))
3306 return buf;
3307 pos += ret;
3308 }
3309
3310 return buf;
3311 }
3312
3313 if (os_strcmp(var, "roaming_partner") == 0) {
3314 unsigned int i;
3315 char *buf, *end, *pos;
3316
3317 if (!cred->num_roaming_partner)
3318 return NULL;
3319
3320 buf = os_malloc(4000);
3321 if (buf == NULL)
3322 return NULL;
3323 pos = buf;
3324 end = pos + 4000;
3325
3326 for (i = 0; i < cred->num_roaming_partner; i++) {
3327 struct roaming_partner *p;
3328 int ret;
3329
3330 p = &cred->roaming_partner[i];
3331 ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3332 i > 0 ? "\n" : "",
3333 p->fqdn, p->exact_match, p->priority,
3334 p->country);
3335 if (os_snprintf_error(end - pos, ret))
3336 return buf;
3337 pos += ret;
3338 }
3339
3340 return buf;
3341 }
3342
3343 if (os_strcmp(var, "provisioning_sp") == 0)
3344 return alloc_strdup(cred->provisioning_sp);
3345
3346 return NULL;
3347 }
3348
3349
wpa_config_get_cred(struct wpa_config * config,int id)3350 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3351 {
3352 struct wpa_cred *cred;
3353
3354 cred = config->cred;
3355 while (cred) {
3356 if (id == cred->id)
3357 break;
3358 cred = cred->next;
3359 }
3360
3361 return cred;
3362 }
3363
3364
wpa_config_add_cred(struct wpa_config * config)3365 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3366 {
3367 int id;
3368 struct wpa_cred *cred, *last = NULL;
3369
3370 id = -1;
3371 cred = config->cred;
3372 while (cred) {
3373 if (cred->id > id)
3374 id = cred->id;
3375 last = cred;
3376 cred = cred->next;
3377 }
3378 id++;
3379
3380 cred = os_zalloc(sizeof(*cred));
3381 if (cred == NULL)
3382 return NULL;
3383 cred->id = id;
3384 cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3385 if (last)
3386 last->next = cred;
3387 else
3388 config->cred = cred;
3389
3390 return cred;
3391 }
3392
3393
wpa_config_remove_cred(struct wpa_config * config,int id)3394 int wpa_config_remove_cred(struct wpa_config *config, int id)
3395 {
3396 struct wpa_cred *cred, *prev = NULL;
3397
3398 cred = config->cred;
3399 while (cred) {
3400 if (id == cred->id)
3401 break;
3402 prev = cred;
3403 cred = cred->next;
3404 }
3405
3406 if (cred == NULL)
3407 return -1;
3408
3409 if (prev)
3410 prev->next = cred->next;
3411 else
3412 config->cred = cred->next;
3413
3414 wpa_config_free_cred(cred);
3415 return 0;
3416 }
3417
3418
3419 #ifndef CONFIG_NO_CONFIG_BLOBS
3420 /**
3421 * wpa_config_get_blob - Get a named configuration blob
3422 * @config: Configuration data from wpa_config_read()
3423 * @name: Name of the blob
3424 * Returns: Pointer to blob data or %NULL if not found
3425 */
wpa_config_get_blob(struct wpa_config * config,const char * name)3426 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3427 const char *name)
3428 {
3429 struct wpa_config_blob *blob = config->blobs;
3430
3431 while (blob) {
3432 if (os_strcmp(blob->name, name) == 0)
3433 return blob;
3434 blob = blob->next;
3435 }
3436 return NULL;
3437 }
3438
3439
3440 /**
3441 * wpa_config_set_blob - Set or add a named configuration blob
3442 * @config: Configuration data from wpa_config_read()
3443 * @blob: New value for the blob
3444 *
3445 * Adds a new configuration blob or replaces the current value of an existing
3446 * blob.
3447 */
wpa_config_set_blob(struct wpa_config * config,struct wpa_config_blob * blob)3448 void wpa_config_set_blob(struct wpa_config *config,
3449 struct wpa_config_blob *blob)
3450 {
3451 wpa_config_remove_blob(config, blob->name);
3452 blob->next = config->blobs;
3453 config->blobs = blob;
3454 }
3455
3456
3457 /**
3458 * wpa_config_free_blob - Free blob data
3459 * @blob: Pointer to blob to be freed
3460 */
wpa_config_free_blob(struct wpa_config_blob * blob)3461 void wpa_config_free_blob(struct wpa_config_blob *blob)
3462 {
3463 if (blob) {
3464 os_free(blob->name);
3465 bin_clear_free(blob->data, blob->len);
3466 os_free(blob);
3467 }
3468 }
3469
3470
3471 /**
3472 * wpa_config_remove_blob - Remove a named configuration blob
3473 * @config: Configuration data from wpa_config_read()
3474 * @name: Name of the blob to remove
3475 * Returns: 0 if blob was removed or -1 if blob was not found
3476 */
wpa_config_remove_blob(struct wpa_config * config,const char * name)3477 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3478 {
3479 struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3480
3481 while (pos) {
3482 if (os_strcmp(pos->name, name) == 0) {
3483 if (prev)
3484 prev->next = pos->next;
3485 else
3486 config->blobs = pos->next;
3487 wpa_config_free_blob(pos);
3488 return 0;
3489 }
3490 prev = pos;
3491 pos = pos->next;
3492 }
3493
3494 return -1;
3495 }
3496 #endif /* CONFIG_NO_CONFIG_BLOBS */
3497
3498
3499 /**
3500 * wpa_config_alloc_empty - Allocate an empty configuration
3501 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3502 * socket
3503 * @driver_param: Driver parameters
3504 * Returns: Pointer to allocated configuration data or %NULL on failure
3505 */
wpa_config_alloc_empty(const char * ctrl_interface,const char * driver_param)3506 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3507 const char *driver_param)
3508 {
3509 struct wpa_config *config;
3510 const int aCWmin = 4, aCWmax = 10;
3511 const struct hostapd_wmm_ac_params ac_bk =
3512 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3513 const struct hostapd_wmm_ac_params ac_be =
3514 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3515 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3516 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3517 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3518 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3519
3520 config = os_zalloc(sizeof(*config));
3521 if (config == NULL)
3522 return NULL;
3523 config->eapol_version = DEFAULT_EAPOL_VERSION;
3524 config->ap_scan = DEFAULT_AP_SCAN;
3525 config->user_mpm = DEFAULT_USER_MPM;
3526 config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3527 config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
3528 config->fast_reauth = DEFAULT_FAST_REAUTH;
3529 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3530 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3531 config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3532 config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3533 config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
3534 config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3535 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3536 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3537 config->max_num_sta = DEFAULT_MAX_NUM_STA;
3538 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3539 config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3540 config->wmm_ac_params[0] = ac_be;
3541 config->wmm_ac_params[1] = ac_bk;
3542 config->wmm_ac_params[2] = ac_vi;
3543 config->wmm_ac_params[3] = ac_vo;
3544 config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3545 config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3546 config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3547 config->cert_in_cb = DEFAULT_CERT_IN_CB;
3548
3549 if (ctrl_interface)
3550 config->ctrl_interface = os_strdup(ctrl_interface);
3551 if (driver_param)
3552 config->driver_param = os_strdup(driver_param);
3553
3554 return config;
3555 }
3556
3557
3558 #ifndef CONFIG_NO_STDOUT_DEBUG
3559 /**
3560 * wpa_config_debug_dump_networks - Debug dump of configured networks
3561 * @config: Configuration data from wpa_config_read()
3562 */
wpa_config_debug_dump_networks(struct wpa_config * config)3563 void wpa_config_debug_dump_networks(struct wpa_config *config)
3564 {
3565 int prio;
3566 struct wpa_ssid *ssid;
3567
3568 for (prio = 0; prio < config->num_prio; prio++) {
3569 ssid = config->pssid[prio];
3570 wpa_printf(MSG_DEBUG, "Priority group %d",
3571 ssid->priority);
3572 while (ssid) {
3573 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
3574 ssid->id,
3575 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3576 ssid = ssid->pnext;
3577 }
3578 }
3579 }
3580 #endif /* CONFIG_NO_STDOUT_DEBUG */
3581
3582
3583 struct global_parse_data {
3584 char *name;
3585 int (*parser)(const struct global_parse_data *data,
3586 struct wpa_config *config, int line, const char *value);
3587 int (*get)(const char *name, struct wpa_config *config, long offset,
3588 char *buf, size_t buflen, int pretty_print);
3589 void *param1, *param2, *param3;
3590 unsigned int changed_flag;
3591 };
3592
3593
wpa_global_config_parse_int(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3594 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3595 struct wpa_config *config, int line,
3596 const char *pos)
3597 {
3598 int val, *dst;
3599 char *end;
3600
3601 dst = (int *) (((u8 *) config) + (long) data->param1);
3602 val = strtol(pos, &end, 0);
3603 if (*end) {
3604 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3605 line, pos);
3606 return -1;
3607 }
3608 *dst = val;
3609
3610 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3611
3612 if (data->param2 && *dst < (long) data->param2) {
3613 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3614 "min_value=%ld)", line, data->name, *dst,
3615 (long) data->param2);
3616 *dst = (long) data->param2;
3617 return -1;
3618 }
3619
3620 if (data->param3 && *dst > (long) data->param3) {
3621 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3622 "max_value=%ld)", line, data->name, *dst,
3623 (long) data->param3);
3624 *dst = (long) data->param3;
3625 return -1;
3626 }
3627
3628 return 0;
3629 }
3630
3631
wpa_global_config_parse_str(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3632 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3633 struct wpa_config *config, int line,
3634 const char *pos)
3635 {
3636 size_t len;
3637 char **dst, *tmp;
3638
3639 len = os_strlen(pos);
3640 if (data->param2 && len < (size_t) data->param2) {
3641 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3642 "min_len=%ld)", line, data->name,
3643 (unsigned long) len, (long) data->param2);
3644 return -1;
3645 }
3646
3647 if (data->param3 && len > (size_t) data->param3) {
3648 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3649 "max_len=%ld)", line, data->name,
3650 (unsigned long) len, (long) data->param3);
3651 return -1;
3652 }
3653
3654 tmp = os_strdup(pos);
3655 if (tmp == NULL)
3656 return -1;
3657
3658 dst = (char **) (((u8 *) config) + (long) data->param1);
3659 os_free(*dst);
3660 *dst = tmp;
3661 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3662
3663 return 0;
3664 }
3665
3666
wpa_config_process_bgscan(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3667 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3668 struct wpa_config *config, int line,
3669 const char *pos)
3670 {
3671 size_t len;
3672 char *tmp;
3673 int res;
3674
3675 tmp = wpa_config_parse_string(pos, &len);
3676 if (tmp == NULL) {
3677 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3678 line, data->name);
3679 return -1;
3680 }
3681
3682 res = wpa_global_config_parse_str(data, config, line, tmp);
3683 os_free(tmp);
3684 return res;
3685 }
3686
3687
wpa_global_config_parse_bin(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3688 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3689 struct wpa_config *config, int line,
3690 const char *pos)
3691 {
3692 size_t len;
3693 struct wpabuf **dst, *tmp;
3694
3695 len = os_strlen(pos);
3696 if (len & 0x01)
3697 return -1;
3698
3699 tmp = wpabuf_alloc(len / 2);
3700 if (tmp == NULL)
3701 return -1;
3702
3703 if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3704 wpabuf_free(tmp);
3705 return -1;
3706 }
3707
3708 dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3709 wpabuf_free(*dst);
3710 *dst = tmp;
3711 wpa_printf(MSG_DEBUG, "%s", data->name);
3712
3713 return 0;
3714 }
3715
3716
wpa_config_process_freq_list(const struct global_parse_data * data,struct wpa_config * config,int line,const char * value)3717 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3718 struct wpa_config *config, int line,
3719 const char *value)
3720 {
3721 int *freqs;
3722
3723 freqs = wpa_config_parse_int_array(value);
3724 if (freqs == NULL)
3725 return -1;
3726 if (freqs[0] == 0) {
3727 os_free(freqs);
3728 freqs = NULL;
3729 }
3730 os_free(config->freq_list);
3731 config->freq_list = freqs;
3732 return 0;
3733 }
3734
3735
3736 #ifdef CONFIG_P2P
wpa_global_config_parse_ipv4(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3737 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3738 struct wpa_config *config, int line,
3739 const char *pos)
3740 {
3741 u32 *dst;
3742 struct hostapd_ip_addr addr;
3743
3744 if (hostapd_parse_ip_addr(pos, &addr) < 0)
3745 return -1;
3746 if (addr.af != AF_INET)
3747 return -1;
3748
3749 dst = (u32 *) (((u8 *) config) + (long) data->param1);
3750 os_memcpy(dst, &addr.u.v4.s_addr, 4);
3751 wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3752 WPA_GET_BE32((u8 *) dst));
3753
3754 return 0;
3755 }
3756 #endif /* CONFIG_P2P */
3757
3758
wpa_config_process_country(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3759 static int wpa_config_process_country(const struct global_parse_data *data,
3760 struct wpa_config *config, int line,
3761 const char *pos)
3762 {
3763 if (!pos[0] || !pos[1]) {
3764 wpa_printf(MSG_DEBUG, "Invalid country set");
3765 return -1;
3766 }
3767 config->country[0] = pos[0];
3768 config->country[1] = pos[1];
3769 wpa_printf(MSG_DEBUG, "country='%c%c'",
3770 config->country[0], config->country[1]);
3771 return 0;
3772 }
3773
3774
wpa_config_process_load_dynamic_eap(const struct global_parse_data * data,struct wpa_config * config,int line,const char * so)3775 static int wpa_config_process_load_dynamic_eap(
3776 const struct global_parse_data *data, struct wpa_config *config,
3777 int line, const char *so)
3778 {
3779 int ret;
3780 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3781 ret = eap_peer_method_load(so);
3782 if (ret == -2) {
3783 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3784 "reloading.");
3785 } else if (ret) {
3786 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3787 "method '%s'.", line, so);
3788 return -1;
3789 }
3790
3791 return 0;
3792 }
3793
3794
3795 #ifdef CONFIG_WPS
3796
wpa_config_process_uuid(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3797 static int wpa_config_process_uuid(const struct global_parse_data *data,
3798 struct wpa_config *config, int line,
3799 const char *pos)
3800 {
3801 char buf[40];
3802 if (uuid_str2bin(pos, config->uuid)) {
3803 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3804 return -1;
3805 }
3806 uuid_bin2str(config->uuid, buf, sizeof(buf));
3807 wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3808 return 0;
3809 }
3810
3811
wpa_config_process_device_type(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3812 static int wpa_config_process_device_type(
3813 const struct global_parse_data *data,
3814 struct wpa_config *config, int line, const char *pos)
3815 {
3816 return wps_dev_type_str2bin(pos, config->device_type);
3817 }
3818
3819
wpa_config_process_os_version(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3820 static int wpa_config_process_os_version(const struct global_parse_data *data,
3821 struct wpa_config *config, int line,
3822 const char *pos)
3823 {
3824 if (hexstr2bin(pos, config->os_version, 4)) {
3825 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3826 return -1;
3827 }
3828 wpa_printf(MSG_DEBUG, "os_version=%08x",
3829 WPA_GET_BE32(config->os_version));
3830 return 0;
3831 }
3832
3833
wpa_config_process_wps_vendor_ext_m1(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3834 static int wpa_config_process_wps_vendor_ext_m1(
3835 const struct global_parse_data *data,
3836 struct wpa_config *config, int line, const char *pos)
3837 {
3838 struct wpabuf *tmp;
3839 int len = os_strlen(pos) / 2;
3840 u8 *p;
3841
3842 if (!len) {
3843 wpa_printf(MSG_ERROR, "Line %d: "
3844 "invalid wps_vendor_ext_m1", line);
3845 return -1;
3846 }
3847
3848 tmp = wpabuf_alloc(len);
3849 if (tmp) {
3850 p = wpabuf_put(tmp, len);
3851
3852 if (hexstr2bin(pos, p, len)) {
3853 wpa_printf(MSG_ERROR, "Line %d: "
3854 "invalid wps_vendor_ext_m1", line);
3855 wpabuf_free(tmp);
3856 return -1;
3857 }
3858
3859 wpabuf_free(config->wps_vendor_ext_m1);
3860 config->wps_vendor_ext_m1 = tmp;
3861 } else {
3862 wpa_printf(MSG_ERROR, "Can not allocate "
3863 "memory for wps_vendor_ext_m1");
3864 return -1;
3865 }
3866
3867 return 0;
3868 }
3869
3870 #endif /* CONFIG_WPS */
3871
3872 #ifdef CONFIG_P2P
wpa_config_process_sec_device_type(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3873 static int wpa_config_process_sec_device_type(
3874 const struct global_parse_data *data,
3875 struct wpa_config *config, int line, const char *pos)
3876 {
3877 int idx;
3878
3879 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3880 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3881 "items", line);
3882 return -1;
3883 }
3884
3885 idx = config->num_sec_device_types;
3886
3887 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3888 return -1;
3889
3890 config->num_sec_device_types++;
3891 return 0;
3892 }
3893
3894
wpa_config_process_p2p_pref_chan(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3895 static int wpa_config_process_p2p_pref_chan(
3896 const struct global_parse_data *data,
3897 struct wpa_config *config, int line, const char *pos)
3898 {
3899 struct p2p_channel *pref = NULL, *n;
3900 unsigned int num = 0;
3901 const char *pos2;
3902 u8 op_class, chan;
3903
3904 /* format: class:chan,class:chan,... */
3905
3906 while (*pos) {
3907 op_class = atoi(pos);
3908 pos2 = os_strchr(pos, ':');
3909 if (pos2 == NULL)
3910 goto fail;
3911 pos2++;
3912 chan = atoi(pos2);
3913
3914 n = os_realloc_array(pref, num + 1,
3915 sizeof(struct p2p_channel));
3916 if (n == NULL)
3917 goto fail;
3918 pref = n;
3919 pref[num].op_class = op_class;
3920 pref[num].chan = chan;
3921 num++;
3922
3923 pos = os_strchr(pos2, ',');
3924 if (pos == NULL)
3925 break;
3926 pos++;
3927 }
3928
3929 os_free(config->p2p_pref_chan);
3930 config->p2p_pref_chan = pref;
3931 config->num_p2p_pref_chan = num;
3932 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3933 (u8 *) config->p2p_pref_chan,
3934 config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3935
3936 return 0;
3937
3938 fail:
3939 os_free(pref);
3940 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3941 return -1;
3942 }
3943
3944
wpa_config_process_p2p_no_go_freq(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3945 static int wpa_config_process_p2p_no_go_freq(
3946 const struct global_parse_data *data,
3947 struct wpa_config *config, int line, const char *pos)
3948 {
3949 int ret;
3950
3951 ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3952 if (ret < 0) {
3953 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3954 return -1;
3955 }
3956
3957 wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3958 config->p2p_no_go_freq.num);
3959
3960 return 0;
3961 }
3962
3963 #endif /* CONFIG_P2P */
3964
3965
wpa_config_process_hessid(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3966 static int wpa_config_process_hessid(
3967 const struct global_parse_data *data,
3968 struct wpa_config *config, int line, const char *pos)
3969 {
3970 if (hwaddr_aton2(pos, config->hessid) < 0) {
3971 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3972 line, pos);
3973 return -1;
3974 }
3975
3976 return 0;
3977 }
3978
3979
wpa_config_process_sae_groups(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3980 static int wpa_config_process_sae_groups(
3981 const struct global_parse_data *data,
3982 struct wpa_config *config, int line, const char *pos)
3983 {
3984 int *groups = wpa_config_parse_int_array(pos);
3985 if (groups == NULL) {
3986 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3987 line, pos);
3988 return -1;
3989 }
3990
3991 os_free(config->sae_groups);
3992 config->sae_groups = groups;
3993
3994 return 0;
3995 }
3996
3997
wpa_config_process_ap_vendor_elements(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)3998 static int wpa_config_process_ap_vendor_elements(
3999 const struct global_parse_data *data,
4000 struct wpa_config *config, int line, const char *pos)
4001 {
4002 struct wpabuf *tmp;
4003 int len = os_strlen(pos) / 2;
4004 u8 *p;
4005
4006 if (!len) {
4007 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4008 line);
4009 return -1;
4010 }
4011
4012 tmp = wpabuf_alloc(len);
4013 if (tmp) {
4014 p = wpabuf_put(tmp, len);
4015
4016 if (hexstr2bin(pos, p, len)) {
4017 wpa_printf(MSG_ERROR, "Line %d: invalid "
4018 "ap_vendor_elements", line);
4019 wpabuf_free(tmp);
4020 return -1;
4021 }
4022
4023 wpabuf_free(config->ap_vendor_elements);
4024 config->ap_vendor_elements = tmp;
4025 } else {
4026 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4027 "ap_vendor_elements");
4028 return -1;
4029 }
4030
4031 return 0;
4032 }
4033
4034
4035 #ifdef CONFIG_CTRL_IFACE
wpa_config_process_no_ctrl_interface(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4036 static int wpa_config_process_no_ctrl_interface(
4037 const struct global_parse_data *data,
4038 struct wpa_config *config, int line, const char *pos)
4039 {
4040 wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4041 os_free(config->ctrl_interface);
4042 config->ctrl_interface = NULL;
4043 return 0;
4044 }
4045 #endif /* CONFIG_CTRL_IFACE */
4046
4047
wpa_config_get_int(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4048 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4049 long offset, char *buf, size_t buflen,
4050 int pretty_print)
4051 {
4052 int *val = (int *) (((u8 *) config) + (long) offset);
4053
4054 if (pretty_print)
4055 return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4056 return os_snprintf(buf, buflen, "%d", *val);
4057 }
4058
4059
wpa_config_get_str(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4060 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4061 long offset, char *buf, size_t buflen,
4062 int pretty_print)
4063 {
4064 char **val = (char **) (((u8 *) config) + (long) offset);
4065 int res;
4066
4067 if (pretty_print)
4068 res = os_snprintf(buf, buflen, "%s=%s\n", name,
4069 *val ? *val : "null");
4070 else if (!*val)
4071 return -1;
4072 else
4073 res = os_snprintf(buf, buflen, "%s", *val);
4074 if (os_snprintf_error(buflen, res))
4075 res = -1;
4076
4077 return res;
4078 }
4079
4080
4081 #ifdef CONFIG_P2P
wpa_config_get_ipv4(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4082 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4083 long offset, char *buf, size_t buflen,
4084 int pretty_print)
4085 {
4086 void *val = ((u8 *) config) + (long) offset;
4087 int res;
4088 char addr[INET_ADDRSTRLEN];
4089
4090 if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4091 return -1;
4092
4093 if (pretty_print)
4094 res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4095 else
4096 res = os_snprintf(buf, buflen, "%s", addr);
4097
4098 if (os_snprintf_error(buflen, res))
4099 res = -1;
4100
4101 return res;
4102 }
4103 #endif /* CONFIG_P2P */
4104
4105
4106 #ifdef OFFSET
4107 #undef OFFSET
4108 #endif /* OFFSET */
4109 /* OFFSET: Get offset of a variable within the wpa_config structure */
4110 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4111
4112 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4113 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4114 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4115 #define INT(f) _INT(f), NULL, NULL
4116 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4117 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4118 #define STR(f) _STR(f), NULL, NULL
4119 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4120 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4121 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4, \
4122 OFFSET(f), NULL, NULL
4123
4124 static const struct global_parse_data global_fields[] = {
4125 #ifdef CONFIG_CTRL_IFACE
4126 { STR(ctrl_interface), 0 },
4127 { FUNC_NO_VAR(no_ctrl_interface), 0 },
4128 { STR(ctrl_interface_group), 0 } /* deprecated */,
4129 #endif /* CONFIG_CTRL_IFACE */
4130 #ifdef CONFIG_MACSEC
4131 { INT_RANGE(eapol_version, 1, 3), 0 },
4132 #else /* CONFIG_MACSEC */
4133 { INT_RANGE(eapol_version, 1, 2), 0 },
4134 #endif /* CONFIG_MACSEC */
4135 { INT(ap_scan), 0 },
4136 { FUNC(bgscan), 0 },
4137 #ifdef CONFIG_MESH
4138 { INT(user_mpm), 0 },
4139 { INT_RANGE(max_peer_links, 0, 255), 0 },
4140 { INT(mesh_max_inactivity), 0 },
4141 #endif /* CONFIG_MESH */
4142 { INT(disable_scan_offload), 0 },
4143 { INT(fast_reauth), 0 },
4144 { STR(opensc_engine_path), 0 },
4145 { STR(pkcs11_engine_path), 0 },
4146 { STR(pkcs11_module_path), 0 },
4147 { STR(openssl_ciphers), 0 },
4148 { STR(pcsc_reader), 0 },
4149 { STR(pcsc_pin), 0 },
4150 { INT(external_sim), 0 },
4151 { STR(driver_param), 0 },
4152 { INT(dot11RSNAConfigPMKLifetime), 0 },
4153 { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4154 { INT(dot11RSNAConfigSATimeout), 0 },
4155 #ifndef CONFIG_NO_CONFIG_WRITE
4156 { INT(update_config), 0 },
4157 #endif /* CONFIG_NO_CONFIG_WRITE */
4158 { FUNC_NO_VAR(load_dynamic_eap), 0 },
4159 #ifdef CONFIG_WPS
4160 { FUNC(uuid), CFG_CHANGED_UUID },
4161 { STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4162 CFG_CHANGED_DEVICE_NAME },
4163 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4164 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4165 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4166 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4167 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4168 { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4169 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4170 { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4171 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4172 #endif /* CONFIG_WPS */
4173 #ifdef CONFIG_P2P
4174 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4175 { INT(p2p_listen_reg_class), 0 },
4176 { INT(p2p_listen_channel), 0 },
4177 { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4178 { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4179 { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4180 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4181 { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4182 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4183 { INT(p2p_group_idle), 0 },
4184 { INT_RANGE(p2p_passphrase_len, 8, 63),
4185 CFG_CHANGED_P2P_PASSPHRASE_LEN },
4186 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4187 { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4188 { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4189 { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4190 { INT(p2p_go_ht40), 0 },
4191 { INT(p2p_go_vht), 0 },
4192 { INT(p2p_disabled), 0 },
4193 { INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4194 { INT(p2p_no_group_iface), 0 },
4195 { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4196 { IPV4(ip_addr_go), 0 },
4197 { IPV4(ip_addr_mask), 0 },
4198 { IPV4(ip_addr_start), 0 },
4199 { IPV4(ip_addr_end), 0 },
4200 { INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4201 #endif /* CONFIG_P2P */
4202 { FUNC(country), CFG_CHANGED_COUNTRY },
4203 { INT(bss_max_count), 0 },
4204 { INT(bss_expiration_age), 0 },
4205 { INT(bss_expiration_scan_count), 0 },
4206 { INT_RANGE(filter_ssids, 0, 1), 0 },
4207 { INT_RANGE(filter_rssi, -100, 0), 0 },
4208 { INT(max_num_sta), 0 },
4209 { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4210 #ifdef CONFIG_HS20
4211 { INT_RANGE(hs20, 0, 1), 0 },
4212 #endif /* CONFIG_HS20 */
4213 { INT_RANGE(interworking, 0, 1), 0 },
4214 { FUNC(hessid), 0 },
4215 { INT_RANGE(access_network_type, 0, 15), 0 },
4216 { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4217 { STR(autoscan), 0 },
4218 { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4219 CFG_CHANGED_NFC_PASSWORD_TOKEN },
4220 { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4221 { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4222 { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4223 { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4224 { INT(p2p_go_max_inactivity), 0 },
4225 { INT_RANGE(auto_interworking, 0, 1), 0 },
4226 { INT(okc), 0 },
4227 { INT(pmf), 0 },
4228 { FUNC(sae_groups), 0 },
4229 { INT(dtim_period), 0 },
4230 { INT(beacon_int), 0 },
4231 { FUNC(ap_vendor_elements), 0 },
4232 { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4233 { FUNC(freq_list), 0 },
4234 { INT(scan_cur_freq), 0 },
4235 { INT(sched_scan_interval), 0 },
4236 { INT(tdls_external_control), 0},
4237 { STR(osu_dir), 0 },
4238 { STR(wowlan_triggers), 0 },
4239 { INT(p2p_search_delay), 0},
4240 { INT(mac_addr), 0 },
4241 { INT(rand_addr_lifetime), 0 },
4242 { INT(preassoc_mac_addr), 0 },
4243 { INT(key_mgmt_offload), 0},
4244 { INT(passive_scan), 0 },
4245 { INT(reassoc_same_bss_optim), 0 },
4246 { INT(wps_priority), 0},
4247 };
4248
4249 #undef FUNC
4250 #undef _INT
4251 #undef INT
4252 #undef INT_RANGE
4253 #undef _STR
4254 #undef STR
4255 #undef STR_RANGE
4256 #undef BIN
4257 #undef IPV4
4258 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4259
4260
wpa_config_dump_values(struct wpa_config * config,char * buf,size_t buflen)4261 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4262 {
4263 int result = 0;
4264 size_t i;
4265
4266 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4267 const struct global_parse_data *field = &global_fields[i];
4268 int tmp;
4269
4270 if (!field->get)
4271 continue;
4272
4273 tmp = field->get(field->name, config, (long) field->param1,
4274 buf, buflen, 1);
4275 if (tmp < 0)
4276 return -1;
4277 buf += tmp;
4278 buflen -= tmp;
4279 result += tmp;
4280 }
4281 return result;
4282 }
4283
4284
wpa_config_get_value(const char * name,struct wpa_config * config,char * buf,size_t buflen)4285 int wpa_config_get_value(const char *name, struct wpa_config *config,
4286 char *buf, size_t buflen)
4287 {
4288 size_t i;
4289
4290 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4291 const struct global_parse_data *field = &global_fields[i];
4292
4293 if (os_strcmp(name, field->name) != 0)
4294 continue;
4295 if (!field->get)
4296 break;
4297 return field->get(name, config, (long) field->param1,
4298 buf, buflen, 0);
4299 }
4300
4301 return -1;
4302 }
4303
4304
wpa_config_process_global(struct wpa_config * config,char * pos,int line)4305 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4306 {
4307 size_t i;
4308 int ret = 0;
4309
4310 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4311 const struct global_parse_data *field = &global_fields[i];
4312 size_t flen = os_strlen(field->name);
4313 if (os_strncmp(pos, field->name, flen) != 0 ||
4314 pos[flen] != '=')
4315 continue;
4316
4317 if (field->parser(field, config, line, pos + flen + 1)) {
4318 wpa_printf(MSG_ERROR, "Line %d: failed to "
4319 "parse '%s'.", line, pos);
4320 ret = -1;
4321 }
4322 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4323 config->wps_nfc_pw_from_config = 1;
4324 config->changed_parameters |= field->changed_flag;
4325 break;
4326 }
4327 if (i == NUM_GLOBAL_FIELDS) {
4328 #ifdef CONFIG_AP
4329 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4330 char *tmp = os_strchr(pos, '=');
4331 if (tmp == NULL) {
4332 if (line < 0)
4333 return -1;
4334 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4335 "'%s'", line, pos);
4336 return -1;
4337 }
4338 *tmp++ = '\0';
4339 if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4340 tmp)) {
4341 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4342 "AC item", line);
4343 return -1;
4344 }
4345 }
4346 #endif /* CONFIG_AP */
4347 if (line < 0)
4348 return -1;
4349 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4350 line, pos);
4351 ret = -1;
4352 }
4353
4354 return ret;
4355 }
4356