1 /*
2 * WPA Supplicant / Configuration parser and common functions
3 * Copyright (c) 2003-2018, 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 "common/ieee802_1x_defs.h"
15 #include "crypto/sha1.h"
16 #include "rsn_supp/wpa.h"
17 #include "eap_peer/eap.h"
18 #include "p2p/p2p.h"
19 #include "fst/fst.h"
20 #include "config.h"
21
22
23 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
24 #define NO_CONFIG_WRITE
25 #endif
26
27 /*
28 * Structure for network configuration parsing. This data is used to implement
29 * a generic parser for each network block variable. The table of configuration
30 * variables is defined below in this file (ssid_fields[]).
31 */
32 struct parse_data {
33 /* Configuration variable name */
34 char *name;
35
36 /* Parser function for this variable. The parser functions return 0 or 1
37 * to indicate success. Value 0 indicates that the parameter value may
38 * have changed while value 1 means that the value did not change.
39 * Error cases (failure to parse the string) are indicated by returning
40 * -1. */
41 int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
42 int line, const char *value);
43
44 #ifndef NO_CONFIG_WRITE
45 /* Writer function (i.e., to get the variable in text format from
46 * internal presentation). */
47 char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
48 #endif /* NO_CONFIG_WRITE */
49
50 /* Variable specific parameters for the parser. */
51 void *param1, *param2, *param3, *param4;
52
53 /* 0 = this variable can be included in debug output and ctrl_iface
54 * 1 = this variable contains key/private data and it must not be
55 * included in debug output unless explicitly requested. In
56 * addition, this variable will not be readable through the
57 * ctrl_iface.
58 */
59 int key_data;
60 };
61
62
wpa_config_parse_str(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)63 static int wpa_config_parse_str(const struct parse_data *data,
64 struct wpa_ssid *ssid,
65 int line, const char *value)
66 {
67 size_t res_len, *dst_len, prev_len;
68 char **dst, *tmp;
69
70 if (os_strcmp(value, "NULL") == 0) {
71 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
72 data->name);
73 tmp = NULL;
74 res_len = 0;
75 goto set;
76 }
77
78 tmp = wpa_config_parse_string(value, &res_len);
79 if (tmp == NULL) {
80 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
81 line, data->name,
82 data->key_data ? "[KEY DATA REMOVED]" : value);
83 return -1;
84 }
85
86 if (data->key_data) {
87 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
88 (u8 *) tmp, res_len);
89 } else {
90 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
91 (u8 *) tmp, res_len);
92 }
93
94 if (data->param3 && res_len < (size_t) data->param3) {
95 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
96 "min_len=%ld)", line, data->name,
97 (unsigned long) res_len, (long) data->param3);
98 os_free(tmp);
99 return -1;
100 }
101
102 if (data->param4 && res_len > (size_t) data->param4) {
103 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
104 "max_len=%ld)", line, data->name,
105 (unsigned long) res_len, (long) data->param4);
106 os_free(tmp);
107 return -1;
108 }
109
110 set:
111 dst = (char **) (((u8 *) ssid) + (long) data->param1);
112 dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
113
114 if (data->param2)
115 prev_len = *dst_len;
116 else if (*dst)
117 prev_len = os_strlen(*dst);
118 else
119 prev_len = 0;
120 if ((*dst == NULL && tmp == NULL) ||
121 (*dst && tmp && prev_len == res_len &&
122 os_memcmp(*dst, tmp, res_len) == 0)) {
123 /* No change to the previously configured value */
124 os_free(tmp);
125 return 1;
126 }
127
128 os_free(*dst);
129 *dst = tmp;
130 if (data->param2)
131 *dst_len = res_len;
132
133 return 0;
134 }
135
136
137 #ifndef NO_CONFIG_WRITE
wpa_config_write_string_ascii(const u8 * value,size_t len)138 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
139 {
140 char *buf;
141
142 buf = os_malloc(len + 3);
143 if (buf == NULL)
144 return NULL;
145 buf[0] = '"';
146 os_memcpy(buf + 1, value, len);
147 buf[len + 1] = '"';
148 buf[len + 2] = '\0';
149
150 return buf;
151 }
152
153
wpa_config_write_string_hex(const u8 * value,size_t len)154 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
155 {
156 char *buf;
157
158 buf = os_zalloc(2 * len + 1);
159 if (buf == NULL)
160 return NULL;
161 wpa_snprintf_hex(buf, 2 * len + 1, value, len);
162
163 return buf;
164 }
165
166
wpa_config_write_string(const u8 * value,size_t len)167 static char * wpa_config_write_string(const u8 *value, size_t len)
168 {
169 if (value == NULL)
170 return NULL;
171
172 if (is_hex(value, len))
173 return wpa_config_write_string_hex(value, len);
174 else
175 return wpa_config_write_string_ascii(value, len);
176 }
177
178
wpa_config_write_str(const struct parse_data * data,struct wpa_ssid * ssid)179 static char * wpa_config_write_str(const struct parse_data *data,
180 struct wpa_ssid *ssid)
181 {
182 size_t len;
183 char **src;
184
185 src = (char **) (((u8 *) ssid) + (long) data->param1);
186 if (*src == NULL)
187 return NULL;
188
189 if (data->param2)
190 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
191 else
192 len = os_strlen(*src);
193
194 return wpa_config_write_string((const u8 *) *src, len);
195 }
196 #endif /* NO_CONFIG_WRITE */
197
198
wpa_config_parse_int(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)199 static int wpa_config_parse_int(const struct parse_data *data,
200 struct wpa_ssid *ssid,
201 int line, const char *value)
202 {
203 int val, *dst;
204 char *end;
205
206 dst = (int *) (((u8 *) ssid) + (long) data->param1);
207 val = strtol(value, &end, 0);
208 if (*end) {
209 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
210 line, value);
211 return -1;
212 }
213
214 if (*dst == val)
215 return 1;
216 *dst = val;
217 wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
218
219 if (data->param3 && *dst < (long) data->param3) {
220 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
221 "min_value=%ld)", line, data->name, *dst,
222 (long) data->param3);
223 *dst = (long) data->param3;
224 return -1;
225 }
226
227 if (data->param4 && *dst > (long) data->param4) {
228 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
229 "max_value=%ld)", line, data->name, *dst,
230 (long) data->param4);
231 *dst = (long) data->param4;
232 return -1;
233 }
234
235 return 0;
236 }
237
238
239 #ifndef NO_CONFIG_WRITE
wpa_config_write_int(const struct parse_data * data,struct wpa_ssid * ssid)240 static char * wpa_config_write_int(const struct parse_data *data,
241 struct wpa_ssid *ssid)
242 {
243 int *src, res;
244 char *value;
245
246 src = (int *) (((u8 *) ssid) + (long) data->param1);
247
248 value = os_malloc(20);
249 if (value == NULL)
250 return NULL;
251 res = os_snprintf(value, 20, "%d", *src);
252 if (os_snprintf_error(20, res)) {
253 os_free(value);
254 return NULL;
255 }
256 value[20 - 1] = '\0';
257 return value;
258 }
259 #endif /* NO_CONFIG_WRITE */
260
261
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)262 static int wpa_config_parse_addr_list(const struct parse_data *data,
263 int line, const char *value,
264 u8 **list, size_t *num, char *name,
265 u8 abort_on_error, u8 masked)
266 {
267 const char *pos;
268 u8 *buf, *n, addr[2 * ETH_ALEN];
269 size_t count;
270
271 buf = NULL;
272 count = 0;
273
274 pos = value;
275 while (pos && *pos) {
276 while (*pos == ' ')
277 pos++;
278
279 if (hwaddr_masked_aton(pos, addr, &addr[ETH_ALEN], masked)) {
280 if (abort_on_error || count == 0) {
281 wpa_printf(MSG_ERROR,
282 "Line %d: Invalid %s address '%s'",
283 line, name, value);
284 os_free(buf);
285 return -1;
286 }
287 /* continue anyway since this could have been from a
288 * truncated configuration file line */
289 wpa_printf(MSG_INFO,
290 "Line %d: Ignore likely truncated %s address '%s'",
291 line, name, pos);
292 } else {
293 n = os_realloc_array(buf, count + 1, 2 * ETH_ALEN);
294 if (n == NULL) {
295 os_free(buf);
296 return -1;
297 }
298 buf = n;
299 os_memmove(buf + 2 * ETH_ALEN, buf,
300 count * 2 * ETH_ALEN);
301 os_memcpy(buf, addr, 2 * ETH_ALEN);
302 count++;
303 wpa_printf(MSG_MSGDUMP,
304 "%s: addr=" MACSTR " mask=" MACSTR,
305 name, MAC2STR(addr),
306 MAC2STR(&addr[ETH_ALEN]));
307 }
308
309 pos = os_strchr(pos, ' ');
310 }
311
312 os_free(*list);
313 *list = buf;
314 *num = count;
315
316 return 0;
317 }
318
319
320 #ifndef NO_CONFIG_WRITE
wpa_config_write_addr_list(const struct parse_data * data,const u8 * list,size_t num,char * name)321 static char * wpa_config_write_addr_list(const struct parse_data *data,
322 const u8 *list, size_t num, char *name)
323 {
324 char *value, *end, *pos;
325 int res;
326 size_t i;
327
328 if (list == NULL || num == 0)
329 return NULL;
330
331 value = os_malloc(2 * 20 * num);
332 if (value == NULL)
333 return NULL;
334 pos = value;
335 end = value + 2 * 20 * num;
336
337 for (i = num; i > 0; i--) {
338 const u8 *a = list + (i - 1) * 2 * ETH_ALEN;
339 const u8 *m = a + ETH_ALEN;
340
341 if (i < num)
342 *pos++ = ' ';
343 res = hwaddr_mask_txt(pos, end - pos, a, m);
344 if (res < 0) {
345 os_free(value);
346 return NULL;
347 }
348 pos += res;
349 }
350
351 return value;
352 }
353 #endif /* NO_CONFIG_WRITE */
354
wpa_config_parse_bssid(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)355 static int wpa_config_parse_bssid(const struct parse_data *data,
356 struct wpa_ssid *ssid, int line,
357 const char *value)
358 {
359 if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
360 os_strcmp(value, "any") == 0) {
361 ssid->bssid_set = 0;
362 wpa_printf(MSG_MSGDUMP, "BSSID any");
363 return 0;
364 }
365 if (hwaddr_aton(value, ssid->bssid)) {
366 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
367 line, value);
368 return -1;
369 }
370 ssid->bssid_set = 1;
371 wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
372 return 0;
373 }
374
375
376 #ifndef NO_CONFIG_WRITE
wpa_config_write_bssid(const struct parse_data * data,struct wpa_ssid * ssid)377 static char * wpa_config_write_bssid(const struct parse_data *data,
378 struct wpa_ssid *ssid)
379 {
380 char *value;
381 int res;
382
383 if (!ssid->bssid_set)
384 return NULL;
385
386 value = os_malloc(20);
387 if (value == NULL)
388 return NULL;
389 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
390 if (os_snprintf_error(20, res)) {
391 os_free(value);
392 return NULL;
393 }
394 value[20 - 1] = '\0';
395 return value;
396 }
397 #endif /* NO_CONFIG_WRITE */
398
399
wpa_config_parse_bssid_hint(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)400 static int wpa_config_parse_bssid_hint(const struct parse_data *data,
401 struct wpa_ssid *ssid, int line,
402 const char *value)
403 {
404 if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
405 os_strcmp(value, "any") == 0) {
406 ssid->bssid_hint_set = 0;
407 wpa_printf(MSG_MSGDUMP, "BSSID hint any");
408 return 0;
409 }
410 if (hwaddr_aton(value, ssid->bssid_hint)) {
411 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID hint '%s'.",
412 line, value);
413 return -1;
414 }
415 ssid->bssid_hint_set = 1;
416 wpa_hexdump(MSG_MSGDUMP, "BSSID hint", ssid->bssid_hint, ETH_ALEN);
417 return 0;
418 }
419
420
421 #ifndef NO_CONFIG_WRITE
wpa_config_write_bssid_hint(const struct parse_data * data,struct wpa_ssid * ssid)422 static char * wpa_config_write_bssid_hint(const struct parse_data *data,
423 struct wpa_ssid *ssid)
424 {
425 char *value;
426 int res;
427
428 if (!ssid->bssid_hint_set)
429 return NULL;
430
431 value = os_malloc(20);
432 if (!value)
433 return NULL;
434 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid_hint));
435 if (os_snprintf_error(20, res)) {
436 os_free(value);
437 return NULL;
438 }
439 return value;
440 }
441 #endif /* NO_CONFIG_WRITE */
442
443
wpa_config_parse_bssid_blacklist(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)444 static int wpa_config_parse_bssid_blacklist(const struct parse_data *data,
445 struct wpa_ssid *ssid, int line,
446 const char *value)
447 {
448 return wpa_config_parse_addr_list(data, line, value,
449 &ssid->bssid_blacklist,
450 &ssid->num_bssid_blacklist,
451 "bssid_blacklist", 1, 1);
452 }
453
454
455 #ifndef NO_CONFIG_WRITE
wpa_config_write_bssid_blacklist(const struct parse_data * data,struct wpa_ssid * ssid)456 static char * wpa_config_write_bssid_blacklist(const struct parse_data *data,
457 struct wpa_ssid *ssid)
458 {
459 return wpa_config_write_addr_list(data, ssid->bssid_blacklist,
460 ssid->num_bssid_blacklist,
461 "bssid_blacklist");
462 }
463 #endif /* NO_CONFIG_WRITE */
464
465
wpa_config_parse_bssid_whitelist(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)466 static int wpa_config_parse_bssid_whitelist(const struct parse_data *data,
467 struct wpa_ssid *ssid, int line,
468 const char *value)
469 {
470 return wpa_config_parse_addr_list(data, line, value,
471 &ssid->bssid_whitelist,
472 &ssid->num_bssid_whitelist,
473 "bssid_whitelist", 1, 1);
474 }
475
476
477 #ifndef NO_CONFIG_WRITE
wpa_config_write_bssid_whitelist(const struct parse_data * data,struct wpa_ssid * ssid)478 static char * wpa_config_write_bssid_whitelist(const struct parse_data *data,
479 struct wpa_ssid *ssid)
480 {
481 return wpa_config_write_addr_list(data, ssid->bssid_whitelist,
482 ssid->num_bssid_whitelist,
483 "bssid_whitelist");
484 }
485 #endif /* NO_CONFIG_WRITE */
486
487
wpa_config_parse_psk(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)488 static int wpa_config_parse_psk(const struct parse_data *data,
489 struct wpa_ssid *ssid, int line,
490 const char *value)
491 {
492 #ifdef CONFIG_EXT_PASSWORD
493 if (os_strncmp(value, "ext:", 4) == 0) {
494 str_clear_free(ssid->passphrase);
495 ssid->passphrase = NULL;
496 ssid->psk_set = 0;
497 os_free(ssid->ext_psk);
498 ssid->ext_psk = os_strdup(value + 4);
499 if (ssid->ext_psk == NULL)
500 return -1;
501 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
502 ssid->ext_psk);
503 return 0;
504 }
505 #endif /* CONFIG_EXT_PASSWORD */
506
507 if (*value == '"') {
508 #ifndef CONFIG_NO_PBKDF2
509 const char *pos;
510 size_t len;
511
512 value++;
513 pos = os_strrchr(value, '"');
514 if (pos)
515 len = pos - value;
516 else
517 len = os_strlen(value);
518 if (len < 8 || len > 63) {
519 wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
520 "length %lu (expected: 8..63) '%s'.",
521 line, (unsigned long) len, value);
522 return -1;
523 }
524 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
525 (u8 *) value, len);
526 if (has_ctrl_char((u8 *) value, len)) {
527 wpa_printf(MSG_ERROR,
528 "Line %d: Invalid passphrase character",
529 line);
530 return -1;
531 }
532 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
533 os_memcmp(ssid->passphrase, value, len) == 0) {
534 /* No change to the previously configured value */
535 return 1;
536 }
537 ssid->psk_set = 0;
538 str_clear_free(ssid->passphrase);
539 ssid->passphrase = dup_binstr(value, len);
540 if (ssid->passphrase == NULL)
541 return -1;
542 return 0;
543 #else /* CONFIG_NO_PBKDF2 */
544 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
545 "supported.", line);
546 return -1;
547 #endif /* CONFIG_NO_PBKDF2 */
548 }
549
550 if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
551 value[PMK_LEN * 2] != '\0') {
552 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
553 line, value);
554 return -1;
555 }
556
557 str_clear_free(ssid->passphrase);
558 ssid->passphrase = NULL;
559
560 ssid->psk_set = 1;
561 wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
562 return 0;
563 }
564
565
566 #ifndef NO_CONFIG_WRITE
wpa_config_write_psk(const struct parse_data * data,struct wpa_ssid * ssid)567 static char * wpa_config_write_psk(const struct parse_data *data,
568 struct wpa_ssid *ssid)
569 {
570 #ifdef CONFIG_EXT_PASSWORD
571 if (ssid->ext_psk) {
572 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
573 char *buf = os_malloc(len);
574 int res;
575
576 if (buf == NULL)
577 return NULL;
578 res = os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
579 if (os_snprintf_error(len, res)) {
580 os_free(buf);
581 buf = NULL;
582 }
583 return buf;
584 }
585 #endif /* CONFIG_EXT_PASSWORD */
586
587 if (ssid->passphrase)
588 return wpa_config_write_string_ascii(
589 (const u8 *) ssid->passphrase,
590 os_strlen(ssid->passphrase));
591
592 if (ssid->psk_set)
593 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
594
595 return NULL;
596 }
597 #endif /* NO_CONFIG_WRITE */
598
599
wpa_config_parse_proto(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)600 static int wpa_config_parse_proto(const struct parse_data *data,
601 struct wpa_ssid *ssid, int line,
602 const char *value)
603 {
604 int val = 0, last, errors = 0;
605 char *start, *end, *buf;
606
607 buf = os_strdup(value);
608 if (buf == NULL)
609 return -1;
610 start = buf;
611
612 while (*start != '\0') {
613 while (*start == ' ' || *start == '\t')
614 start++;
615 if (*start == '\0')
616 break;
617 end = start;
618 while (*end != ' ' && *end != '\t' && *end != '\0')
619 end++;
620 last = *end == '\0';
621 *end = '\0';
622 if (os_strcmp(start, "WPA") == 0)
623 val |= WPA_PROTO_WPA;
624 else if (os_strcmp(start, "RSN") == 0 ||
625 os_strcmp(start, "WPA2") == 0)
626 val |= WPA_PROTO_RSN;
627 else if (os_strcmp(start, "OSEN") == 0)
628 val |= WPA_PROTO_OSEN;
629 else {
630 wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
631 line, start);
632 errors++;
633 }
634
635 if (last)
636 break;
637 start = end + 1;
638 }
639 os_free(buf);
640
641 if (val == 0) {
642 wpa_printf(MSG_ERROR,
643 "Line %d: no proto values configured.", line);
644 errors++;
645 }
646
647 if (!errors && ssid->proto == val)
648 return 1;
649 wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
650 ssid->proto = val;
651 return errors ? -1 : 0;
652 }
653
654
655 #ifndef NO_CONFIG_WRITE
wpa_config_write_proto(const struct parse_data * data,struct wpa_ssid * ssid)656 static char * wpa_config_write_proto(const struct parse_data *data,
657 struct wpa_ssid *ssid)
658 {
659 int ret;
660 char *buf, *pos, *end;
661
662 pos = buf = os_zalloc(20);
663 if (buf == NULL)
664 return NULL;
665 end = buf + 20;
666
667 if (ssid->proto & WPA_PROTO_WPA) {
668 ret = os_snprintf(pos, end - pos, "%sWPA",
669 pos == buf ? "" : " ");
670 if (os_snprintf_error(end - pos, ret))
671 return buf;
672 pos += ret;
673 }
674
675 if (ssid->proto & WPA_PROTO_RSN) {
676 ret = os_snprintf(pos, end - pos, "%sRSN",
677 pos == buf ? "" : " ");
678 if (os_snprintf_error(end - pos, ret))
679 return buf;
680 pos += ret;
681 }
682
683 if (ssid->proto & WPA_PROTO_OSEN) {
684 ret = os_snprintf(pos, end - pos, "%sOSEN",
685 pos == buf ? "" : " ");
686 if (os_snprintf_error(end - pos, ret))
687 return buf;
688 pos += ret;
689 }
690
691 if (pos == buf) {
692 os_free(buf);
693 buf = NULL;
694 }
695
696 return buf;
697 }
698 #endif /* NO_CONFIG_WRITE */
699
700
wpa_config_parse_key_mgmt(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)701 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
702 struct wpa_ssid *ssid, int line,
703 const char *value)
704 {
705 int val = 0, last, errors = 0;
706 char *start, *end, *buf;
707
708 buf = os_strdup(value);
709 if (buf == NULL)
710 return -1;
711 start = buf;
712
713 while (*start != '\0') {
714 while (*start == ' ' || *start == '\t')
715 start++;
716 if (*start == '\0')
717 break;
718 end = start;
719 while (*end != ' ' && *end != '\t' && *end != '\0')
720 end++;
721 last = *end == '\0';
722 *end = '\0';
723 if (os_strcmp(start, "WPA-PSK") == 0)
724 val |= WPA_KEY_MGMT_PSK;
725 else if (os_strcmp(start, "WPA-EAP") == 0)
726 val |= WPA_KEY_MGMT_IEEE8021X;
727 else if (os_strcmp(start, "IEEE8021X") == 0)
728 val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
729 else if (os_strcmp(start, "NONE") == 0)
730 val |= WPA_KEY_MGMT_NONE;
731 else if (os_strcmp(start, "WPA-NONE") == 0)
732 val |= WPA_KEY_MGMT_WPA_NONE;
733 #ifdef CONFIG_IEEE80211R
734 else if (os_strcmp(start, "FT-PSK") == 0)
735 val |= WPA_KEY_MGMT_FT_PSK;
736 else if (os_strcmp(start, "FT-EAP") == 0)
737 val |= WPA_KEY_MGMT_FT_IEEE8021X;
738 #ifdef CONFIG_SHA384
739 else if (os_strcmp(start, "FT-EAP-SHA384") == 0)
740 val |= WPA_KEY_MGMT_FT_IEEE8021X_SHA384;
741 #endif /* CONFIG_SHA384 */
742 #endif /* CONFIG_IEEE80211R */
743 #ifdef CONFIG_IEEE80211W
744 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
745 val |= WPA_KEY_MGMT_PSK_SHA256;
746 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
747 val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
748 #endif /* CONFIG_IEEE80211W */
749 #ifdef CONFIG_WPS
750 else if (os_strcmp(start, "WPS") == 0)
751 val |= WPA_KEY_MGMT_WPS;
752 #endif /* CONFIG_WPS */
753 #ifdef CONFIG_SAE
754 else if (os_strcmp(start, "SAE") == 0)
755 val |= WPA_KEY_MGMT_SAE;
756 else if (os_strcmp(start, "FT-SAE") == 0)
757 val |= WPA_KEY_MGMT_FT_SAE;
758 #endif /* CONFIG_SAE */
759 #ifdef CONFIG_HS20
760 else if (os_strcmp(start, "OSEN") == 0)
761 val |= WPA_KEY_MGMT_OSEN;
762 #endif /* CONFIG_HS20 */
763 #ifdef CONFIG_SUITEB
764 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
765 val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
766 #endif /* CONFIG_SUITEB */
767 #ifdef CONFIG_SUITEB192
768 else if (os_strcmp(start, "WPA-EAP-SUITE-B-192") == 0)
769 val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
770 #endif /* CONFIG_SUITEB192 */
771 #ifdef CONFIG_FILS
772 else if (os_strcmp(start, "FILS-SHA256") == 0)
773 val |= WPA_KEY_MGMT_FILS_SHA256;
774 else if (os_strcmp(start, "FILS-SHA384") == 0)
775 val |= WPA_KEY_MGMT_FILS_SHA384;
776 #ifdef CONFIG_IEEE80211R
777 else if (os_strcmp(start, "FT-FILS-SHA256") == 0)
778 val |= WPA_KEY_MGMT_FT_FILS_SHA256;
779 else if (os_strcmp(start, "FT-FILS-SHA384") == 0)
780 val |= WPA_KEY_MGMT_FT_FILS_SHA384;
781 #endif /* CONFIG_IEEE80211R */
782 #endif /* CONFIG_FILS */
783 #ifdef CONFIG_OWE
784 else if (os_strcmp(start, "OWE") == 0)
785 val |= WPA_KEY_MGMT_OWE;
786 #endif /* CONFIG_OWE */
787 #ifdef CONFIG_DPP
788 else if (os_strcmp(start, "DPP") == 0)
789 val |= WPA_KEY_MGMT_DPP;
790 #endif /* CONFIG_DPP */
791 else {
792 wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
793 line, start);
794 errors++;
795 }
796
797 if (last)
798 break;
799 start = end + 1;
800 }
801 os_free(buf);
802
803 if (val == 0) {
804 wpa_printf(MSG_ERROR,
805 "Line %d: no key_mgmt values configured.", line);
806 errors++;
807 }
808
809 if (!errors && ssid->key_mgmt == val)
810 return 1;
811 wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
812 ssid->key_mgmt = val;
813 return errors ? -1 : 0;
814 }
815
816
817 #ifndef NO_CONFIG_WRITE
wpa_config_write_key_mgmt(const struct parse_data * data,struct wpa_ssid * ssid)818 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
819 struct wpa_ssid *ssid)
820 {
821 char *buf, *pos, *end;
822 int ret;
823
824 pos = buf = os_zalloc(100);
825 if (buf == NULL)
826 return NULL;
827 end = buf + 100;
828
829 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
830 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
831 pos == buf ? "" : " ");
832 if (os_snprintf_error(end - pos, ret)) {
833 end[-1] = '\0';
834 return buf;
835 }
836 pos += ret;
837 }
838
839 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
840 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
841 pos == buf ? "" : " ");
842 if (os_snprintf_error(end - pos, ret)) {
843 end[-1] = '\0';
844 return buf;
845 }
846 pos += ret;
847 }
848
849 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
850 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
851 pos == buf ? "" : " ");
852 if (os_snprintf_error(end - pos, ret)) {
853 end[-1] = '\0';
854 return buf;
855 }
856 pos += ret;
857 }
858
859 if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
860 ret = os_snprintf(pos, end - pos, "%sNONE",
861 pos == buf ? "" : " ");
862 if (os_snprintf_error(end - pos, ret)) {
863 end[-1] = '\0';
864 return buf;
865 }
866 pos += ret;
867 }
868
869 if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
870 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
871 pos == buf ? "" : " ");
872 if (os_snprintf_error(end - pos, ret)) {
873 end[-1] = '\0';
874 return buf;
875 }
876 pos += ret;
877 }
878
879 #ifdef CONFIG_IEEE80211R
880 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
881 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
882 pos == buf ? "" : " ");
883 if (os_snprintf_error(end - pos, ret)) {
884 end[-1] = '\0';
885 return buf;
886 }
887 pos += ret;
888 }
889
890 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
891 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
892 pos == buf ? "" : " ");
893 if (os_snprintf_error(end - pos, ret)) {
894 end[-1] = '\0';
895 return buf;
896 }
897 pos += ret;
898 }
899
900 #ifdef CONFIG_SHA384
901 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X_SHA384) {
902 ret = os_snprintf(pos, end - pos, "%sFT-EAP-SHA384",
903 pos == buf ? "" : " ");
904 if (os_snprintf_error(end - pos, ret)) {
905 end[-1] = '\0';
906 return buf;
907 }
908 pos += ret;
909 }
910 #endif /* CONFIG_SHA384 */
911 #endif /* CONFIG_IEEE80211R */
912
913 #ifdef CONFIG_IEEE80211W
914 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
915 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
916 pos == buf ? "" : " ");
917 if (os_snprintf_error(end - pos, ret)) {
918 end[-1] = '\0';
919 return buf;
920 }
921 pos += ret;
922 }
923
924 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
925 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
926 pos == buf ? "" : " ");
927 if (os_snprintf_error(end - pos, ret)) {
928 end[-1] = '\0';
929 return buf;
930 }
931 pos += ret;
932 }
933 #endif /* CONFIG_IEEE80211W */
934
935 #ifdef CONFIG_WPS
936 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
937 ret = os_snprintf(pos, end - pos, "%sWPS",
938 pos == buf ? "" : " ");
939 if (os_snprintf_error(end - pos, ret)) {
940 end[-1] = '\0';
941 return buf;
942 }
943 pos += ret;
944 }
945 #endif /* CONFIG_WPS */
946
947 #ifdef CONFIG_SAE
948 if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
949 ret = os_snprintf(pos, end - pos, "%sSAE",
950 pos == buf ? "" : " ");
951 if (os_snprintf_error(end - pos, ret)) {
952 end[-1] = '\0';
953 return buf;
954 }
955 pos += ret;
956 }
957
958 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
959 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
960 pos == buf ? "" : " ");
961 if (os_snprintf_error(end - pos, ret)) {
962 end[-1] = '\0';
963 return buf;
964 }
965 pos += ret;
966 }
967 #endif /* CONFIG_SAE */
968
969 #ifdef CONFIG_HS20
970 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
971 ret = os_snprintf(pos, end - pos, "%sOSEN",
972 pos == buf ? "" : " ");
973 if (os_snprintf_error(end - pos, ret)) {
974 end[-1] = '\0';
975 return buf;
976 }
977 pos += ret;
978 }
979 #endif /* CONFIG_HS20 */
980
981 #ifdef CONFIG_SUITEB
982 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
983 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
984 pos == buf ? "" : " ");
985 if (os_snprintf_error(end - pos, ret)) {
986 end[-1] = '\0';
987 return buf;
988 }
989 pos += ret;
990 }
991 #endif /* CONFIG_SUITEB */
992
993 #ifdef CONFIG_SUITEB192
994 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
995 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B-192",
996 pos == buf ? "" : " ");
997 if (os_snprintf_error(end - pos, ret)) {
998 end[-1] = '\0';
999 return buf;
1000 }
1001 pos += ret;
1002 }
1003 #endif /* CONFIG_SUITEB192 */
1004
1005 #ifdef CONFIG_FILS
1006 if (ssid->key_mgmt & WPA_KEY_MGMT_FILS_SHA256) {
1007 ret = os_snprintf(pos, end - pos, "%sFILS-SHA256",
1008 pos == buf ? "" : " ");
1009 if (os_snprintf_error(end - pos, ret)) {
1010 end[-1] = '\0';
1011 return buf;
1012 }
1013 pos += ret;
1014 }
1015 if (ssid->key_mgmt & WPA_KEY_MGMT_FILS_SHA384) {
1016 ret = os_snprintf(pos, end - pos, "%sFILS-SHA384",
1017 pos == buf ? "" : " ");
1018 if (os_snprintf_error(end - pos, ret)) {
1019 end[-1] = '\0';
1020 return buf;
1021 }
1022 pos += ret;
1023 }
1024 #ifdef CONFIG_IEEE80211R
1025 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA256) {
1026 ret = os_snprintf(pos, end - pos, "%sFT-FILS-SHA256",
1027 pos == buf ? "" : " ");
1028 if (os_snprintf_error(end - pos, ret)) {
1029 end[-1] = '\0';
1030 return buf;
1031 }
1032 pos += ret;
1033 }
1034 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA384) {
1035 ret = os_snprintf(pos, end - pos, "%sFT-FILS-SHA384",
1036 pos == buf ? "" : " ");
1037 if (os_snprintf_error(end - pos, ret)) {
1038 end[-1] = '\0';
1039 return buf;
1040 }
1041 pos += ret;
1042 }
1043 #endif /* CONFIG_IEEE80211R */
1044 #endif /* CONFIG_FILS */
1045
1046 #ifdef CONFIG_DPP
1047 if (ssid->key_mgmt & WPA_KEY_MGMT_DPP) {
1048 ret = os_snprintf(pos, end - pos, "%sDPP",
1049 pos == buf ? "" : " ");
1050 if (os_snprintf_error(end - pos, ret)) {
1051 end[-1] = '\0';
1052 return buf;
1053 }
1054 pos += ret;
1055 }
1056 #endif /* CONFIG_DPP */
1057
1058 #ifdef CONFIG_OWE
1059 if (ssid->key_mgmt & WPA_KEY_MGMT_OWE) {
1060 ret = os_snprintf(pos, end - pos, "%sOWE",
1061 pos == buf ? "" : " ");
1062 if (os_snprintf_error(end - pos, ret)) {
1063 end[-1] = '\0';
1064 return buf;
1065 }
1066 pos += ret;
1067 }
1068 #endif /* CONFIG_OWE */
1069
1070 if (pos == buf) {
1071 os_free(buf);
1072 buf = NULL;
1073 }
1074
1075 return buf;
1076 }
1077 #endif /* NO_CONFIG_WRITE */
1078
1079
wpa_config_parse_cipher(int line,const char * value)1080 static int wpa_config_parse_cipher(int line, const char *value)
1081 {
1082 #ifdef CONFIG_NO_WPA
1083 return -1;
1084 #else /* CONFIG_NO_WPA */
1085 int val = wpa_parse_cipher(value);
1086 if (val < 0) {
1087 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
1088 line, value);
1089 return -1;
1090 }
1091 if (val == 0) {
1092 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
1093 line);
1094 return -1;
1095 }
1096 return val;
1097 #endif /* CONFIG_NO_WPA */
1098 }
1099
1100
1101 #ifndef NO_CONFIG_WRITE
wpa_config_write_cipher(int cipher)1102 static char * wpa_config_write_cipher(int cipher)
1103 {
1104 #ifdef CONFIG_NO_WPA
1105 return NULL;
1106 #else /* CONFIG_NO_WPA */
1107 char *buf = os_zalloc(50);
1108 if (buf == NULL)
1109 return NULL;
1110
1111 if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
1112 os_free(buf);
1113 return NULL;
1114 }
1115
1116 return buf;
1117 #endif /* CONFIG_NO_WPA */
1118 }
1119 #endif /* NO_CONFIG_WRITE */
1120
1121
wpa_config_parse_pairwise(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1122 static int wpa_config_parse_pairwise(const struct parse_data *data,
1123 struct wpa_ssid *ssid, int line,
1124 const char *value)
1125 {
1126 int val;
1127 val = wpa_config_parse_cipher(line, value);
1128 if (val == -1)
1129 return -1;
1130 if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
1131 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
1132 "(0x%x).", line, val);
1133 return -1;
1134 }
1135
1136 if (ssid->pairwise_cipher == val)
1137 return 1;
1138 wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
1139 ssid->pairwise_cipher = val;
1140 return 0;
1141 }
1142
1143
1144 #ifndef NO_CONFIG_WRITE
wpa_config_write_pairwise(const struct parse_data * data,struct wpa_ssid * ssid)1145 static char * wpa_config_write_pairwise(const struct parse_data *data,
1146 struct wpa_ssid *ssid)
1147 {
1148 return wpa_config_write_cipher(ssid->pairwise_cipher);
1149 }
1150 #endif /* NO_CONFIG_WRITE */
1151
1152
wpa_config_parse_group(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1153 static int wpa_config_parse_group(const struct parse_data *data,
1154 struct wpa_ssid *ssid, int line,
1155 const char *value)
1156 {
1157 int val;
1158 val = wpa_config_parse_cipher(line, value);
1159 if (val == -1)
1160 return -1;
1161
1162 /*
1163 * Backwards compatibility - filter out WEP ciphers that were previously
1164 * allowed.
1165 */
1166 val &= ~(WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40);
1167
1168 if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
1169 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
1170 "(0x%x).", line, val);
1171 return -1;
1172 }
1173
1174 if (ssid->group_cipher == val)
1175 return 1;
1176 wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
1177 ssid->group_cipher = val;
1178 return 0;
1179 }
1180
1181
1182 #ifndef NO_CONFIG_WRITE
wpa_config_write_group(const struct parse_data * data,struct wpa_ssid * ssid)1183 static char * wpa_config_write_group(const struct parse_data *data,
1184 struct wpa_ssid *ssid)
1185 {
1186 return wpa_config_write_cipher(ssid->group_cipher);
1187 }
1188 #endif /* NO_CONFIG_WRITE */
1189
1190
wpa_config_parse_group_mgmt(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1191 static int wpa_config_parse_group_mgmt(const struct parse_data *data,
1192 struct wpa_ssid *ssid, int line,
1193 const char *value)
1194 {
1195 int val;
1196
1197 val = wpa_config_parse_cipher(line, value);
1198 if (val == -1)
1199 return -1;
1200
1201 if (val & ~WPA_ALLOWED_GROUP_MGMT_CIPHERS) {
1202 wpa_printf(MSG_ERROR,
1203 "Line %d: not allowed group management cipher (0x%x).",
1204 line, val);
1205 return -1;
1206 }
1207
1208 if (ssid->group_mgmt_cipher == val)
1209 return 1;
1210 wpa_printf(MSG_MSGDUMP, "group_mgmt: 0x%x", val);
1211 ssid->group_mgmt_cipher = val;
1212 return 0;
1213 }
1214
1215
1216 #ifndef NO_CONFIG_WRITE
wpa_config_write_group_mgmt(const struct parse_data * data,struct wpa_ssid * ssid)1217 static char * wpa_config_write_group_mgmt(const struct parse_data *data,
1218 struct wpa_ssid *ssid)
1219 {
1220 return wpa_config_write_cipher(ssid->group_mgmt_cipher);
1221 }
1222 #endif /* NO_CONFIG_WRITE */
1223
1224
wpa_config_parse_auth_alg(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1225 static int wpa_config_parse_auth_alg(const struct parse_data *data,
1226 struct wpa_ssid *ssid, int line,
1227 const char *value)
1228 {
1229 int val = 0, last, errors = 0;
1230 char *start, *end, *buf;
1231
1232 buf = os_strdup(value);
1233 if (buf == NULL)
1234 return -1;
1235 start = buf;
1236
1237 while (*start != '\0') {
1238 while (*start == ' ' || *start == '\t')
1239 start++;
1240 if (*start == '\0')
1241 break;
1242 end = start;
1243 while (*end != ' ' && *end != '\t' && *end != '\0')
1244 end++;
1245 last = *end == '\0';
1246 *end = '\0';
1247 if (os_strcmp(start, "OPEN") == 0)
1248 val |= WPA_AUTH_ALG_OPEN;
1249 else if (os_strcmp(start, "SHARED") == 0)
1250 val |= WPA_AUTH_ALG_SHARED;
1251 else if (os_strcmp(start, "LEAP") == 0)
1252 val |= WPA_AUTH_ALG_LEAP;
1253 else {
1254 wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1255 line, start);
1256 errors++;
1257 }
1258
1259 if (last)
1260 break;
1261 start = end + 1;
1262 }
1263 os_free(buf);
1264
1265 if (val == 0) {
1266 wpa_printf(MSG_ERROR,
1267 "Line %d: no auth_alg values configured.", line);
1268 errors++;
1269 }
1270
1271 if (!errors && ssid->auth_alg == val)
1272 return 1;
1273 wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1274 ssid->auth_alg = val;
1275 return errors ? -1 : 0;
1276 }
1277
1278
1279 #ifndef NO_CONFIG_WRITE
wpa_config_write_auth_alg(const struct parse_data * data,struct wpa_ssid * ssid)1280 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1281 struct wpa_ssid *ssid)
1282 {
1283 char *buf, *pos, *end;
1284 int ret;
1285
1286 pos = buf = os_zalloc(30);
1287 if (buf == NULL)
1288 return NULL;
1289 end = buf + 30;
1290
1291 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1292 ret = os_snprintf(pos, end - pos, "%sOPEN",
1293 pos == buf ? "" : " ");
1294 if (os_snprintf_error(end - pos, ret)) {
1295 end[-1] = '\0';
1296 return buf;
1297 }
1298 pos += ret;
1299 }
1300
1301 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1302 ret = os_snprintf(pos, end - pos, "%sSHARED",
1303 pos == buf ? "" : " ");
1304 if (os_snprintf_error(end - pos, ret)) {
1305 end[-1] = '\0';
1306 return buf;
1307 }
1308 pos += ret;
1309 }
1310
1311 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1312 ret = os_snprintf(pos, end - pos, "%sLEAP",
1313 pos == buf ? "" : " ");
1314 if (os_snprintf_error(end - pos, ret)) {
1315 end[-1] = '\0';
1316 return buf;
1317 }
1318 pos += ret;
1319 }
1320
1321 if (pos == buf) {
1322 os_free(buf);
1323 buf = NULL;
1324 }
1325
1326 return buf;
1327 }
1328 #endif /* NO_CONFIG_WRITE */
1329
1330
wpa_config_parse_int_array(const char * value)1331 static int * wpa_config_parse_int_array(const char *value)
1332 {
1333 int *freqs;
1334 size_t used, len;
1335 const char *pos;
1336
1337 used = 0;
1338 len = 10;
1339 freqs = os_calloc(len + 1, sizeof(int));
1340 if (freqs == NULL)
1341 return NULL;
1342
1343 pos = value;
1344 while (pos) {
1345 while (*pos == ' ')
1346 pos++;
1347 if (used == len) {
1348 int *n;
1349 size_t i;
1350 n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1351 if (n == NULL) {
1352 os_free(freqs);
1353 return NULL;
1354 }
1355 for (i = len; i <= len * 2; i++)
1356 n[i] = 0;
1357 freqs = n;
1358 len *= 2;
1359 }
1360
1361 freqs[used] = atoi(pos);
1362 if (freqs[used] == 0)
1363 break;
1364 used++;
1365 pos = os_strchr(pos + 1, ' ');
1366 }
1367
1368 return freqs;
1369 }
1370
1371
wpa_config_parse_scan_freq(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1372 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1373 struct wpa_ssid *ssid, int line,
1374 const char *value)
1375 {
1376 int *freqs;
1377
1378 freqs = wpa_config_parse_int_array(value);
1379 if (freqs == NULL)
1380 return -1;
1381 if (freqs[0] == 0) {
1382 os_free(freqs);
1383 freqs = NULL;
1384 }
1385 os_free(ssid->scan_freq);
1386 ssid->scan_freq = freqs;
1387
1388 return 0;
1389 }
1390
1391
wpa_config_parse_freq_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1392 static int wpa_config_parse_freq_list(const struct parse_data *data,
1393 struct wpa_ssid *ssid, int line,
1394 const char *value)
1395 {
1396 int *freqs;
1397
1398 freqs = wpa_config_parse_int_array(value);
1399 if (freqs == NULL)
1400 return -1;
1401 if (freqs[0] == 0) {
1402 os_free(freqs);
1403 freqs = NULL;
1404 }
1405 os_free(ssid->freq_list);
1406 ssid->freq_list = freqs;
1407
1408 return 0;
1409 }
1410
1411
1412 #ifndef NO_CONFIG_WRITE
wpa_config_write_freqs(const struct parse_data * data,const int * freqs)1413 static char * wpa_config_write_freqs(const struct parse_data *data,
1414 const int *freqs)
1415 {
1416 char *buf, *pos, *end;
1417 int i, ret;
1418 size_t count;
1419
1420 if (freqs == NULL)
1421 return NULL;
1422
1423 count = 0;
1424 for (i = 0; freqs[i]; i++)
1425 count++;
1426
1427 pos = buf = os_zalloc(10 * count + 1);
1428 if (buf == NULL)
1429 return NULL;
1430 end = buf + 10 * count + 1;
1431
1432 for (i = 0; freqs[i]; i++) {
1433 ret = os_snprintf(pos, end - pos, "%s%u",
1434 i == 0 ? "" : " ", freqs[i]);
1435 if (os_snprintf_error(end - pos, ret)) {
1436 end[-1] = '\0';
1437 return buf;
1438 }
1439 pos += ret;
1440 }
1441
1442 return buf;
1443 }
1444
1445
wpa_config_write_scan_freq(const struct parse_data * data,struct wpa_ssid * ssid)1446 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1447 struct wpa_ssid *ssid)
1448 {
1449 return wpa_config_write_freqs(data, ssid->scan_freq);
1450 }
1451
1452
wpa_config_write_freq_list(const struct parse_data * data,struct wpa_ssid * ssid)1453 static char * wpa_config_write_freq_list(const struct parse_data *data,
1454 struct wpa_ssid *ssid)
1455 {
1456 return wpa_config_write_freqs(data, ssid->freq_list);
1457 }
1458 #endif /* NO_CONFIG_WRITE */
1459
1460
1461 #ifdef IEEE8021X_EAPOL
wpa_config_parse_eap(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1462 static int wpa_config_parse_eap(const struct parse_data *data,
1463 struct wpa_ssid *ssid, int line,
1464 const char *value)
1465 {
1466 int last, errors = 0;
1467 char *start, *end, *buf;
1468 struct eap_method_type *methods = NULL, *tmp;
1469 size_t num_methods = 0;
1470
1471 buf = os_strdup(value);
1472 if (buf == NULL)
1473 return -1;
1474 start = buf;
1475
1476 while (*start != '\0') {
1477 while (*start == ' ' || *start == '\t')
1478 start++;
1479 if (*start == '\0')
1480 break;
1481 end = start;
1482 while (*end != ' ' && *end != '\t' && *end != '\0')
1483 end++;
1484 last = *end == '\0';
1485 *end = '\0';
1486 tmp = methods;
1487 methods = os_realloc_array(methods, num_methods + 1,
1488 sizeof(*methods));
1489 if (methods == NULL) {
1490 os_free(tmp);
1491 os_free(buf);
1492 return -1;
1493 }
1494 methods[num_methods].method = eap_peer_get_type(
1495 start, &methods[num_methods].vendor);
1496 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1497 methods[num_methods].method == EAP_TYPE_NONE) {
1498 wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1499 "'%s'", line, start);
1500 wpa_printf(MSG_ERROR, "You may need to add support for"
1501 " this EAP method during wpa_supplicant\n"
1502 "build time configuration.\n"
1503 "See README for more information.");
1504 errors++;
1505 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1506 methods[num_methods].method == EAP_TYPE_LEAP)
1507 ssid->leap++;
1508 else
1509 ssid->non_leap++;
1510 num_methods++;
1511 if (last)
1512 break;
1513 start = end + 1;
1514 }
1515 os_free(buf);
1516
1517 tmp = methods;
1518 methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1519 if (methods == NULL) {
1520 os_free(tmp);
1521 return -1;
1522 }
1523 methods[num_methods].vendor = EAP_VENDOR_IETF;
1524 methods[num_methods].method = EAP_TYPE_NONE;
1525 num_methods++;
1526
1527 if (!errors && ssid->eap.eap_methods) {
1528 struct eap_method_type *prev_m;
1529 size_t i, j, prev_methods, match = 0;
1530
1531 prev_m = ssid->eap.eap_methods;
1532 for (i = 0; prev_m[i].vendor != EAP_VENDOR_IETF ||
1533 prev_m[i].method != EAP_TYPE_NONE; i++) {
1534 /* Count the methods */
1535 }
1536 prev_methods = i + 1;
1537
1538 for (i = 0; prev_methods == num_methods && i < prev_methods;
1539 i++) {
1540 for (j = 0; j < num_methods; j++) {
1541 if (prev_m[i].vendor == methods[j].vendor &&
1542 prev_m[i].method == methods[j].method) {
1543 match++;
1544 break;
1545 }
1546 }
1547 }
1548 if (match == num_methods) {
1549 os_free(methods);
1550 return 1;
1551 }
1552 }
1553 wpa_hexdump(MSG_MSGDUMP, "eap methods",
1554 (u8 *) methods, num_methods * sizeof(*methods));
1555 os_free(ssid->eap.eap_methods);
1556 ssid->eap.eap_methods = methods;
1557 return errors ? -1 : 0;
1558 }
1559
1560
1561 #ifndef NO_CONFIG_WRITE
wpa_config_write_eap(const struct parse_data * data,struct wpa_ssid * ssid)1562 static char * wpa_config_write_eap(const struct parse_data *data,
1563 struct wpa_ssid *ssid)
1564 {
1565 int i, ret;
1566 char *buf, *pos, *end;
1567 const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1568 const char *name;
1569
1570 if (eap_methods == NULL)
1571 return NULL;
1572
1573 pos = buf = os_zalloc(100);
1574 if (buf == NULL)
1575 return NULL;
1576 end = buf + 100;
1577
1578 for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1579 eap_methods[i].method != EAP_TYPE_NONE; i++) {
1580 name = eap_get_name(eap_methods[i].vendor,
1581 eap_methods[i].method);
1582 if (name) {
1583 ret = os_snprintf(pos, end - pos, "%s%s",
1584 pos == buf ? "" : " ", name);
1585 if (os_snprintf_error(end - pos, ret))
1586 break;
1587 pos += ret;
1588 }
1589 }
1590
1591 end[-1] = '\0';
1592
1593 return buf;
1594 }
1595 #endif /* NO_CONFIG_WRITE */
1596
1597
wpa_config_parse_password(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1598 static int wpa_config_parse_password(const struct parse_data *data,
1599 struct wpa_ssid *ssid, int line,
1600 const char *value)
1601 {
1602 u8 *hash;
1603
1604 if (os_strcmp(value, "NULL") == 0) {
1605 if (!ssid->eap.password)
1606 return 1; /* Already unset */
1607 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1608 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1609 ssid->eap.password = NULL;
1610 ssid->eap.password_len = 0;
1611 return 0;
1612 }
1613
1614 #ifdef CONFIG_EXT_PASSWORD
1615 if (os_strncmp(value, "ext:", 4) == 0) {
1616 char *name = os_strdup(value + 4);
1617 if (name == NULL)
1618 return -1;
1619 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1620 ssid->eap.password = (u8 *) name;
1621 ssid->eap.password_len = os_strlen(name);
1622 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1623 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1624 return 0;
1625 }
1626 #endif /* CONFIG_EXT_PASSWORD */
1627
1628 if (os_strncmp(value, "hash:", 5) != 0) {
1629 char *tmp;
1630 size_t res_len;
1631
1632 tmp = wpa_config_parse_string(value, &res_len);
1633 if (tmp == NULL) {
1634 wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1635 "password.", line);
1636 return -1;
1637 }
1638 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1639 (u8 *) tmp, res_len);
1640
1641 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1642 ssid->eap.password = (u8 *) tmp;
1643 ssid->eap.password_len = res_len;
1644 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1645 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1646
1647 return 0;
1648 }
1649
1650
1651 /* NtPasswordHash: hash:<32 hex digits> */
1652 if (os_strlen(value + 5) != 2 * 16) {
1653 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1654 "(expected 32 hex digits)", line);
1655 return -1;
1656 }
1657
1658 hash = os_malloc(16);
1659 if (hash == NULL)
1660 return -1;
1661
1662 if (hexstr2bin(value + 5, hash, 16)) {
1663 os_free(hash);
1664 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1665 return -1;
1666 }
1667
1668 wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1669
1670 if (ssid->eap.password && ssid->eap.password_len == 16 &&
1671 os_memcmp(ssid->eap.password, hash, 16) == 0 &&
1672 (ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1673 bin_clear_free(hash, 16);
1674 return 1;
1675 }
1676 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1677 ssid->eap.password = hash;
1678 ssid->eap.password_len = 16;
1679 ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1680 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1681
1682 return 0;
1683 }
1684
1685
1686 #ifndef NO_CONFIG_WRITE
wpa_config_write_password(const struct parse_data * data,struct wpa_ssid * ssid)1687 static char * wpa_config_write_password(const struct parse_data *data,
1688 struct wpa_ssid *ssid)
1689 {
1690 char *buf;
1691
1692 if (ssid->eap.password == NULL)
1693 return NULL;
1694
1695 #ifdef CONFIG_EXT_PASSWORD
1696 if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1697 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1698 if (buf == NULL)
1699 return NULL;
1700 os_memcpy(buf, "ext:", 4);
1701 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1702 return buf;
1703 }
1704 #endif /* CONFIG_EXT_PASSWORD */
1705
1706 if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1707 return wpa_config_write_string(
1708 ssid->eap.password, ssid->eap.password_len);
1709 }
1710
1711 buf = os_malloc(5 + 32 + 1);
1712 if (buf == NULL)
1713 return NULL;
1714
1715 os_memcpy(buf, "hash:", 5);
1716 wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1717
1718 return buf;
1719 }
1720 #endif /* NO_CONFIG_WRITE */
1721 #endif /* IEEE8021X_EAPOL */
1722
1723
wpa_config_parse_wep_key(u8 * key,size_t * len,int line,const char * value,int idx)1724 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1725 const char *value, int idx)
1726 {
1727 char *buf, title[20];
1728 int res;
1729
1730 buf = wpa_config_parse_string(value, len);
1731 if (buf == NULL) {
1732 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1733 line, idx, value);
1734 return -1;
1735 }
1736 if (*len > MAX_WEP_KEY_LEN) {
1737 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1738 line, idx, value);
1739 os_free(buf);
1740 return -1;
1741 }
1742 if (*len && *len != 5 && *len != 13 && *len != 16) {
1743 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1744 "this network block will be ignored",
1745 line, (unsigned int) *len);
1746 }
1747 os_memcpy(key, buf, *len);
1748 str_clear_free(buf);
1749 res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1750 if (!os_snprintf_error(sizeof(title), res))
1751 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1752 return 0;
1753 }
1754
1755
wpa_config_parse_wep_key0(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1756 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1757 struct wpa_ssid *ssid, int line,
1758 const char *value)
1759 {
1760 return wpa_config_parse_wep_key(ssid->wep_key[0],
1761 &ssid->wep_key_len[0], line,
1762 value, 0);
1763 }
1764
1765
wpa_config_parse_wep_key1(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1766 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1767 struct wpa_ssid *ssid, int line,
1768 const char *value)
1769 {
1770 return wpa_config_parse_wep_key(ssid->wep_key[1],
1771 &ssid->wep_key_len[1], line,
1772 value, 1);
1773 }
1774
1775
wpa_config_parse_wep_key2(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1776 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1777 struct wpa_ssid *ssid, int line,
1778 const char *value)
1779 {
1780 return wpa_config_parse_wep_key(ssid->wep_key[2],
1781 &ssid->wep_key_len[2], line,
1782 value, 2);
1783 }
1784
1785
wpa_config_parse_wep_key3(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1786 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1787 struct wpa_ssid *ssid, int line,
1788 const char *value)
1789 {
1790 return wpa_config_parse_wep_key(ssid->wep_key[3],
1791 &ssid->wep_key_len[3], line,
1792 value, 3);
1793 }
1794
1795
1796 #ifndef NO_CONFIG_WRITE
wpa_config_write_wep_key(struct wpa_ssid * ssid,int idx)1797 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1798 {
1799 if (ssid->wep_key_len[idx] == 0)
1800 return NULL;
1801 return wpa_config_write_string(ssid->wep_key[idx],
1802 ssid->wep_key_len[idx]);
1803 }
1804
1805
wpa_config_write_wep_key0(const struct parse_data * data,struct wpa_ssid * ssid)1806 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1807 struct wpa_ssid *ssid)
1808 {
1809 return wpa_config_write_wep_key(ssid, 0);
1810 }
1811
1812
wpa_config_write_wep_key1(const struct parse_data * data,struct wpa_ssid * ssid)1813 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1814 struct wpa_ssid *ssid)
1815 {
1816 return wpa_config_write_wep_key(ssid, 1);
1817 }
1818
1819
wpa_config_write_wep_key2(const struct parse_data * data,struct wpa_ssid * ssid)1820 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1821 struct wpa_ssid *ssid)
1822 {
1823 return wpa_config_write_wep_key(ssid, 2);
1824 }
1825
1826
wpa_config_write_wep_key3(const struct parse_data * data,struct wpa_ssid * ssid)1827 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1828 struct wpa_ssid *ssid)
1829 {
1830 return wpa_config_write_wep_key(ssid, 3);
1831 }
1832 #endif /* NO_CONFIG_WRITE */
1833
1834
1835 #ifdef CONFIG_P2P
1836
wpa_config_parse_go_p2p_dev_addr(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1837 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1838 struct wpa_ssid *ssid, int line,
1839 const char *value)
1840 {
1841 if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1842 os_strcmp(value, "any") == 0) {
1843 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1844 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1845 return 0;
1846 }
1847 if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1848 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1849 line, value);
1850 return -1;
1851 }
1852 ssid->bssid_set = 1;
1853 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1854 MAC2STR(ssid->go_p2p_dev_addr));
1855 return 0;
1856 }
1857
1858
1859 #ifndef NO_CONFIG_WRITE
wpa_config_write_go_p2p_dev_addr(const struct parse_data * data,struct wpa_ssid * ssid)1860 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1861 struct wpa_ssid *ssid)
1862 {
1863 char *value;
1864 int res;
1865
1866 if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1867 return NULL;
1868
1869 value = os_malloc(20);
1870 if (value == NULL)
1871 return NULL;
1872 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1873 if (os_snprintf_error(20, res)) {
1874 os_free(value);
1875 return NULL;
1876 }
1877 value[20 - 1] = '\0';
1878 return value;
1879 }
1880 #endif /* NO_CONFIG_WRITE */
1881
1882
wpa_config_parse_p2p_client_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1883 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1884 struct wpa_ssid *ssid, int line,
1885 const char *value)
1886 {
1887 return wpa_config_parse_addr_list(data, line, value,
1888 &ssid->p2p_client_list,
1889 &ssid->num_p2p_clients,
1890 "p2p_client_list", 0, 0);
1891 }
1892
1893
1894 #ifndef NO_CONFIG_WRITE
wpa_config_write_p2p_client_list(const struct parse_data * data,struct wpa_ssid * ssid)1895 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1896 struct wpa_ssid *ssid)
1897 {
1898 return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1899 ssid->num_p2p_clients,
1900 "p2p_client_list");
1901 }
1902 #endif /* NO_CONFIG_WRITE */
1903
1904
wpa_config_parse_psk_list(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1905 static int wpa_config_parse_psk_list(const struct parse_data *data,
1906 struct wpa_ssid *ssid, int line,
1907 const char *value)
1908 {
1909 struct psk_list_entry *p;
1910 const char *pos;
1911
1912 p = os_zalloc(sizeof(*p));
1913 if (p == NULL)
1914 return -1;
1915
1916 pos = value;
1917 if (os_strncmp(pos, "P2P-", 4) == 0) {
1918 p->p2p = 1;
1919 pos += 4;
1920 }
1921
1922 if (hwaddr_aton(pos, p->addr)) {
1923 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1924 line, pos);
1925 os_free(p);
1926 return -1;
1927 }
1928 pos += 17;
1929 if (*pos != '-') {
1930 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1931 line, pos);
1932 os_free(p);
1933 return -1;
1934 }
1935 pos++;
1936
1937 if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1938 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1939 line, pos);
1940 os_free(p);
1941 return -1;
1942 }
1943
1944 dl_list_add(&ssid->psk_list, &p->list);
1945
1946 return 0;
1947 }
1948
1949
1950 #ifndef NO_CONFIG_WRITE
wpa_config_write_psk_list(const struct parse_data * data,struct wpa_ssid * ssid)1951 static char * wpa_config_write_psk_list(const struct parse_data *data,
1952 struct wpa_ssid *ssid)
1953 {
1954 return NULL;
1955 }
1956 #endif /* NO_CONFIG_WRITE */
1957
1958 #endif /* CONFIG_P2P */
1959
1960
1961 #ifdef CONFIG_MESH
1962
wpa_config_parse_mesh_basic_rates(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)1963 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1964 struct wpa_ssid *ssid, int line,
1965 const char *value)
1966 {
1967 int *rates = wpa_config_parse_int_array(value);
1968
1969 if (rates == NULL) {
1970 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1971 line, value);
1972 return -1;
1973 }
1974 if (rates[0] == 0) {
1975 os_free(rates);
1976 rates = NULL;
1977 }
1978
1979 os_free(ssid->mesh_basic_rates);
1980 ssid->mesh_basic_rates = rates;
1981
1982 return 0;
1983 }
1984
1985
1986 #ifndef NO_CONFIG_WRITE
1987
wpa_config_write_mesh_basic_rates(const struct parse_data * data,struct wpa_ssid * ssid)1988 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1989 struct wpa_ssid *ssid)
1990 {
1991 return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1992 }
1993
1994 #endif /* NO_CONFIG_WRITE */
1995
1996 #endif /* CONFIG_MESH */
1997
1998
1999 #ifdef CONFIG_MACSEC
2000
wpa_config_parse_mka_cak(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)2001 static int wpa_config_parse_mka_cak(const struct parse_data *data,
2002 struct wpa_ssid *ssid, int line,
2003 const char *value)
2004 {
2005 size_t len;
2006
2007 len = os_strlen(value);
2008 if (len > 2 * MACSEC_CAK_MAX_LEN ||
2009 (len != 2 * 16 && len != 2 * 32) ||
2010 hexstr2bin(value, ssid->mka_cak, len / 2)) {
2011 wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CAK '%s'.",
2012 line, value);
2013 return -1;
2014 }
2015 ssid->mka_cak_len = len / 2;
2016 ssid->mka_psk_set |= MKA_PSK_SET_CAK;
2017
2018 wpa_hexdump_key(MSG_MSGDUMP, "MKA-CAK", ssid->mka_cak,
2019 ssid->mka_cak_len);
2020 return 0;
2021 }
2022
2023
wpa_config_parse_mka_ckn(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)2024 static int wpa_config_parse_mka_ckn(const struct parse_data *data,
2025 struct wpa_ssid *ssid, int line,
2026 const char *value)
2027 {
2028 size_t len;
2029
2030 len = os_strlen(value);
2031 if (len > 2 * MACSEC_CKN_MAX_LEN || /* too long */
2032 len < 2 || /* too short */
2033 len % 2 != 0 /* not an integral number of bytes */) {
2034 wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CKN '%s'.",
2035 line, value);
2036 return -1;
2037 }
2038 ssid->mka_ckn_len = len / 2;
2039 if (hexstr2bin(value, ssid->mka_ckn, ssid->mka_ckn_len)) {
2040 wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CKN '%s'.",
2041 line, value);
2042 return -1;
2043 }
2044
2045 ssid->mka_psk_set |= MKA_PSK_SET_CKN;
2046
2047 wpa_hexdump_key(MSG_MSGDUMP, "MKA-CKN", ssid->mka_ckn,
2048 ssid->mka_ckn_len);
2049 return 0;
2050 }
2051
2052
2053 #ifndef NO_CONFIG_WRITE
2054
wpa_config_write_mka_cak(const struct parse_data * data,struct wpa_ssid * ssid)2055 static char * wpa_config_write_mka_cak(const struct parse_data *data,
2056 struct wpa_ssid *ssid)
2057 {
2058 if (!(ssid->mka_psk_set & MKA_PSK_SET_CAK))
2059 return NULL;
2060
2061 return wpa_config_write_string_hex(ssid->mka_cak, ssid->mka_cak_len);
2062 }
2063
2064
wpa_config_write_mka_ckn(const struct parse_data * data,struct wpa_ssid * ssid)2065 static char * wpa_config_write_mka_ckn(const struct parse_data *data,
2066 struct wpa_ssid *ssid)
2067 {
2068 if (!(ssid->mka_psk_set & MKA_PSK_SET_CKN))
2069 return NULL;
2070 return wpa_config_write_string_hex(ssid->mka_ckn, ssid->mka_ckn_len);
2071 }
2072
2073 #endif /* NO_CONFIG_WRITE */
2074
2075 #endif /* CONFIG_MACSEC */
2076
2077
2078 #ifdef CONFIG_OCV
2079
wpa_config_parse_ocv(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)2080 static int wpa_config_parse_ocv(const struct parse_data *data,
2081 struct wpa_ssid *ssid, int line,
2082 const char *value)
2083 {
2084 char *end;
2085
2086 ssid->ocv = strtol(value, &end, 0);
2087 if (*end || ssid->ocv < 0 || ssid->ocv > 1) {
2088 wpa_printf(MSG_ERROR, "Line %d: Invalid ocv value '%s'.",
2089 line, value);
2090 return -1;
2091 }
2092 if (ssid->ocv && ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION)
2093 ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
2094 return 0;
2095 }
2096
2097
2098 #ifndef NO_CONFIG_WRITE
wpa_config_write_ocv(const struct parse_data * data,struct wpa_ssid * ssid)2099 static char * wpa_config_write_ocv(const struct parse_data *data,
2100 struct wpa_ssid *ssid)
2101 {
2102 char *value = os_malloc(20);
2103
2104 if (!value)
2105 return NULL;
2106 os_snprintf(value, 20, "%d", ssid->ocv);
2107 value[20 - 1] = '\0';
2108 return value;
2109 }
2110 #endif /* NO_CONFIG_WRITE */
2111
2112 #endif /* CONFIG_OCV */
2113
2114
wpa_config_parse_peerkey(const struct parse_data * data,struct wpa_ssid * ssid,int line,const char * value)2115 static int wpa_config_parse_peerkey(const struct parse_data *data,
2116 struct wpa_ssid *ssid, int line,
2117 const char *value)
2118 {
2119 wpa_printf(MSG_INFO, "NOTE: Obsolete peerkey parameter ignored");
2120 return 0;
2121 }
2122
2123
2124 #ifndef NO_CONFIG_WRITE
wpa_config_write_peerkey(const struct parse_data * data,struct wpa_ssid * ssid)2125 static char * wpa_config_write_peerkey(const struct parse_data *data,
2126 struct wpa_ssid *ssid)
2127 {
2128 return NULL;
2129 }
2130 #endif /* NO_CONFIG_WRITE */
2131
2132
2133 /* Helper macros for network block parser */
2134
2135 #ifdef OFFSET
2136 #undef OFFSET
2137 #endif /* OFFSET */
2138 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
2139 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
2140
2141 /* STR: Define a string variable for an ASCII string; f = field name */
2142 #ifdef NO_CONFIG_WRITE
2143 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
2144 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
2145 #else /* NO_CONFIG_WRITE */
2146 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
2147 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
2148 #endif /* NO_CONFIG_WRITE */
2149 #define STR(f) _STR(f), NULL, NULL, NULL, 0
2150 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
2151 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
2152 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
2153
2154 /* STR_LEN: Define a string variable with a separate variable for storing the
2155 * data length. Unlike STR(), this can be used to store arbitrary binary data
2156 * (i.e., even nul termination character). */
2157 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
2158 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
2159 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
2160 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
2161 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
2162
2163 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
2164 * explicitly specified. */
2165 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
2166 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
2167 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
2168
2169 #ifdef NO_CONFIG_WRITE
2170 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
2171 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
2172 #else /* NO_CONFIG_WRITE */
2173 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2174 OFFSET(f), (void *) 0
2175 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2176 OFFSET(eap.f), (void *) 0
2177 #endif /* NO_CONFIG_WRITE */
2178
2179 /* INT: Define an integer variable */
2180 #define INT(f) _INT(f), NULL, NULL, 0
2181 #define INTe(f) _INTe(f), NULL, NULL, 0
2182
2183 /* INT_RANGE: Define an integer variable with allowed value range */
2184 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
2185
2186 /* FUNC: Define a configuration variable that uses a custom function for
2187 * parsing and writing the value. */
2188 #ifdef NO_CONFIG_WRITE
2189 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
2190 #else /* NO_CONFIG_WRITE */
2191 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
2192 NULL, NULL, NULL, NULL
2193 #endif /* NO_CONFIG_WRITE */
2194 #define FUNC(f) _FUNC(f), 0
2195 #define FUNC_KEY(f) _FUNC(f), 1
2196
2197 /*
2198 * Table of network configuration variables. This table is used to parse each
2199 * network configuration variable, e.g., each line in wpa_supplicant.conf file
2200 * that is inside a network block.
2201 *
2202 * This table is generated using the helper macros defined above and with
2203 * generous help from the C pre-processor. The field name is stored as a string
2204 * into .name and for STR and INT types, the offset of the target buffer within
2205 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
2206 * offset to the field containing the length of the configuration variable.
2207 * .param3 and .param4 can be used to mark the allowed range (length for STR
2208 * and value for INT).
2209 *
2210 * For each configuration line in wpa_supplicant.conf, the parser goes through
2211 * this table and select the entry that matches with the field name. The parser
2212 * function (.parser) is then called to parse the actual value of the field.
2213 *
2214 * This kind of mechanism makes it easy to add new configuration parameters,
2215 * since only one line needs to be added into this table and into the
2216 * struct wpa_ssid definition if the new variable is either a string or
2217 * integer. More complex types will need to use their own parser and writer
2218 * functions.
2219 */
2220 static const struct parse_data ssid_fields[] = {
2221 { STR_RANGE(ssid, 0, SSID_MAX_LEN) },
2222 { INT_RANGE(scan_ssid, 0, 1) },
2223 { FUNC(bssid) },
2224 { FUNC(bssid_hint) },
2225 { FUNC(bssid_blacklist) },
2226 { FUNC(bssid_whitelist) },
2227 { FUNC_KEY(psk) },
2228 { INT(mem_only_psk) },
2229 { STR_KEY(sae_password) },
2230 { STR(sae_password_id) },
2231 { FUNC(proto) },
2232 { FUNC(key_mgmt) },
2233 { INT(bg_scan_period) },
2234 { FUNC(pairwise) },
2235 { FUNC(group) },
2236 { FUNC(group_mgmt) },
2237 { FUNC(auth_alg) },
2238 { FUNC(scan_freq) },
2239 { FUNC(freq_list) },
2240 { INT_RANGE(ht, 0, 1) },
2241 { INT_RANGE(vht, 0, 1) },
2242 { INT_RANGE(ht40, -1, 1) },
2243 { INT_RANGE(max_oper_chwidth, VHT_CHANWIDTH_USE_HT,
2244 VHT_CHANWIDTH_80P80MHZ) },
2245 { INT(vht_center_freq1) },
2246 { INT(vht_center_freq2) },
2247 #ifdef IEEE8021X_EAPOL
2248 { FUNC(eap) },
2249 { STR_LENe(identity) },
2250 { STR_LENe(anonymous_identity) },
2251 { STR_LENe(imsi_identity) },
2252 { FUNC_KEY(password) },
2253 { STRe(ca_cert) },
2254 { STRe(ca_path) },
2255 { STRe(client_cert) },
2256 { STRe(private_key) },
2257 { STR_KEYe(private_key_passwd) },
2258 { STRe(dh_file) },
2259 { STRe(subject_match) },
2260 { STRe(check_cert_subject) },
2261 { STRe(altsubject_match) },
2262 { STRe(domain_suffix_match) },
2263 { STRe(domain_match) },
2264 { STRe(ca_cert2) },
2265 { STRe(ca_path2) },
2266 { STRe(client_cert2) },
2267 { STRe(private_key2) },
2268 { STR_KEYe(private_key2_passwd) },
2269 { STRe(dh_file2) },
2270 { STRe(subject_match2) },
2271 { STRe(check_cert_subject2) },
2272 { STRe(altsubject_match2) },
2273 { STRe(domain_suffix_match2) },
2274 { STRe(domain_match2) },
2275 { STRe(phase1) },
2276 { STRe(phase2) },
2277 { STRe(pcsc) },
2278 { STR_KEYe(pin) },
2279 { STRe(engine_id) },
2280 { STRe(key_id) },
2281 { STRe(cert_id) },
2282 { STRe(ca_cert_id) },
2283 { STR_KEYe(pin2) },
2284 { STRe(engine2_id) },
2285 { STRe(key2_id) },
2286 { STRe(cert2_id) },
2287 { STRe(ca_cert2_id) },
2288 { INTe(engine) },
2289 { INTe(engine2) },
2290 { INT(eapol_flags) },
2291 { INTe(sim_num) },
2292 { STRe(openssl_ciphers) },
2293 { INTe(erp) },
2294 #endif /* IEEE8021X_EAPOL */
2295 { FUNC_KEY(wep_key0) },
2296 { FUNC_KEY(wep_key1) },
2297 { FUNC_KEY(wep_key2) },
2298 { FUNC_KEY(wep_key3) },
2299 { INT(wep_tx_keyidx) },
2300 { INT(priority) },
2301 #ifdef IEEE8021X_EAPOL
2302 { INT(eap_workaround) },
2303 { STRe(pac_file) },
2304 { INTe(fragment_size) },
2305 { INTe(ocsp) },
2306 #endif /* IEEE8021X_EAPOL */
2307 #ifdef CONFIG_MESH
2308 { INT_RANGE(mode, 0, 5) },
2309 { INT_RANGE(no_auto_peer, 0, 1) },
2310 { INT_RANGE(mesh_rssi_threshold, -255, 1) },
2311 #else /* CONFIG_MESH */
2312 { INT_RANGE(mode, 0, 4) },
2313 #endif /* CONFIG_MESH */
2314 { INT_RANGE(proactive_key_caching, 0, 1) },
2315 { INT_RANGE(disabled, 0, 2) },
2316 { STR(id_str) },
2317 #ifdef CONFIG_IEEE80211W
2318 { INT_RANGE(ieee80211w, 0, 2) },
2319 #endif /* CONFIG_IEEE80211W */
2320 #ifdef CONFIG_OCV
2321 { FUNC(ocv) },
2322 #endif /* CONFIG_OCV */
2323 { FUNC(peerkey) /* obsolete - removed */ },
2324 { INT_RANGE(mixed_cell, 0, 1) },
2325 { INT_RANGE(frequency, 0, 65000) },
2326 { INT_RANGE(fixed_freq, 0, 1) },
2327 #ifdef CONFIG_ACS
2328 { INT_RANGE(acs, 0, 1) },
2329 #endif /* CONFIG_ACS */
2330 #ifdef CONFIG_MESH
2331 { FUNC(mesh_basic_rates) },
2332 { INT(dot11MeshMaxRetries) },
2333 { INT(dot11MeshRetryTimeout) },
2334 { INT(dot11MeshConfirmTimeout) },
2335 { INT(dot11MeshHoldingTimeout) },
2336 #endif /* CONFIG_MESH */
2337 { INT(wpa_ptk_rekey) },
2338 { INT(group_rekey) },
2339 { STR(bgscan) },
2340 { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
2341 #ifdef CONFIG_P2P
2342 { FUNC(go_p2p_dev_addr) },
2343 { FUNC(p2p_client_list) },
2344 { FUNC(psk_list) },
2345 #endif /* CONFIG_P2P */
2346 #ifdef CONFIG_HT_OVERRIDES
2347 { INT_RANGE(disable_ht, 0, 1) },
2348 { INT_RANGE(disable_ht40, -1, 1) },
2349 { INT_RANGE(disable_sgi, 0, 1) },
2350 { INT_RANGE(disable_ldpc, 0, 1) },
2351 { INT_RANGE(ht40_intolerant, 0, 1) },
2352 { INT_RANGE(tx_stbc, -1, 1) },
2353 { INT_RANGE(rx_stbc, -1, 3) },
2354 { INT_RANGE(disable_max_amsdu, -1, 1) },
2355 { INT_RANGE(ampdu_factor, -1, 3) },
2356 { INT_RANGE(ampdu_density, -1, 7) },
2357 { STR(ht_mcs) },
2358 #endif /* CONFIG_HT_OVERRIDES */
2359 #ifdef CONFIG_VHT_OVERRIDES
2360 { INT_RANGE(disable_vht, 0, 1) },
2361 { INT(vht_capa) },
2362 { INT(vht_capa_mask) },
2363 { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
2364 { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
2365 { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
2366 { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
2367 { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
2368 { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
2369 { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
2370 { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
2371 { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
2372 { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
2373 { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
2374 { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
2375 { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
2376 { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
2377 { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
2378 { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
2379 #endif /* CONFIG_VHT_OVERRIDES */
2380 { INT(ap_max_inactivity) },
2381 { INT(dtim_period) },
2382 { INT(beacon_int) },
2383 #ifdef CONFIG_MACSEC
2384 { INT_RANGE(macsec_policy, 0, 1) },
2385 { INT_RANGE(macsec_integ_only, 0, 1) },
2386 { INT_RANGE(macsec_replay_protect, 0, 1) },
2387 { INT(macsec_replay_window) },
2388 { INT_RANGE(macsec_port, 1, 65534) },
2389 { INT_RANGE(mka_priority, 0, 255) },
2390 { FUNC_KEY(mka_cak) },
2391 { FUNC_KEY(mka_ckn) },
2392 #endif /* CONFIG_MACSEC */
2393 #ifdef CONFIG_HS20
2394 { INT(update_identifier) },
2395 { STR_RANGE(roaming_consortium_selection, 0, MAX_ROAMING_CONS_OI_LEN) },
2396 #endif /* CONFIG_HS20 */
2397 { INT_RANGE(mac_addr, 0, 2) },
2398 { INT_RANGE(pbss, 0, 2) },
2399 { INT_RANGE(wps_disabled, 0, 1) },
2400 { INT_RANGE(fils_dh_group, 0, 65535) },
2401 #ifdef CONFIG_DPP
2402 { STR(dpp_connector) },
2403 { STR_LEN(dpp_netaccesskey) },
2404 { INT(dpp_netaccesskey_expiry) },
2405 { STR_LEN(dpp_csign) },
2406 #endif /* CONFIG_DPP */
2407 { INT_RANGE(owe_group, 0, 65535) },
2408 { INT_RANGE(owe_only, 0, 1) },
2409 { INT_RANGE(multi_ap_backhaul_sta, 0, 1) },
2410 };
2411
2412 #undef OFFSET
2413 #undef _STR
2414 #undef STR
2415 #undef STR_KEY
2416 #undef _STR_LEN
2417 #undef STR_LEN
2418 #undef STR_LEN_KEY
2419 #undef _STR_RANGE
2420 #undef STR_RANGE
2421 #undef STR_RANGE_KEY
2422 #undef _INT
2423 #undef INT
2424 #undef INT_RANGE
2425 #undef _FUNC
2426 #undef FUNC
2427 #undef FUNC_KEY
2428 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
2429
2430
2431 /**
2432 * wpa_config_add_prio_network - Add a network to priority lists
2433 * @config: Configuration data from wpa_config_read()
2434 * @ssid: Pointer to the network configuration to be added to the list
2435 * Returns: 0 on success, -1 on failure
2436 *
2437 * This function is used to add a network block to the priority list of
2438 * networks. This must be called for each network when reading in the full
2439 * configuration. In addition, this can be used indirectly when updating
2440 * priorities by calling wpa_config_update_prio_list().
2441 */
wpa_config_add_prio_network(struct wpa_config * config,struct wpa_ssid * ssid)2442 int wpa_config_add_prio_network(struct wpa_config *config,
2443 struct wpa_ssid *ssid)
2444 {
2445 int prio;
2446 struct wpa_ssid *prev, **nlist;
2447
2448 /*
2449 * Add to an existing priority list if one is available for the
2450 * configured priority level for this network.
2451 */
2452 for (prio = 0; prio < config->num_prio; prio++) {
2453 prev = config->pssid[prio];
2454 if (prev->priority == ssid->priority) {
2455 while (prev->pnext)
2456 prev = prev->pnext;
2457 prev->pnext = ssid;
2458 return 0;
2459 }
2460 }
2461
2462 /* First network for this priority - add a new priority list */
2463 nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2464 sizeof(struct wpa_ssid *));
2465 if (nlist == NULL)
2466 return -1;
2467
2468 for (prio = 0; prio < config->num_prio; prio++) {
2469 if (nlist[prio]->priority < ssid->priority) {
2470 os_memmove(&nlist[prio + 1], &nlist[prio],
2471 (config->num_prio - prio) *
2472 sizeof(struct wpa_ssid *));
2473 break;
2474 }
2475 }
2476
2477 nlist[prio] = ssid;
2478 config->num_prio++;
2479 config->pssid = nlist;
2480
2481 return 0;
2482 }
2483
2484
2485 /**
2486 * wpa_config_update_prio_list - Update network priority list
2487 * @config: Configuration data from wpa_config_read()
2488 * Returns: 0 on success, -1 on failure
2489 *
2490 * This function is called to update the priority list of networks in the
2491 * configuration when a network is being added or removed. This is also called
2492 * if a priority for a network is changed.
2493 */
wpa_config_update_prio_list(struct wpa_config * config)2494 int wpa_config_update_prio_list(struct wpa_config *config)
2495 {
2496 struct wpa_ssid *ssid;
2497 int ret = 0;
2498
2499 os_free(config->pssid);
2500 config->pssid = NULL;
2501 config->num_prio = 0;
2502
2503 ssid = config->ssid;
2504 while (ssid) {
2505 ssid->pnext = NULL;
2506 if (wpa_config_add_prio_network(config, ssid) < 0)
2507 ret = -1;
2508 ssid = ssid->next;
2509 }
2510
2511 return ret;
2512 }
2513
2514
2515 #ifdef IEEE8021X_EAPOL
eap_peer_config_free(struct eap_peer_config * eap)2516 static void eap_peer_config_free(struct eap_peer_config *eap)
2517 {
2518 os_free(eap->eap_methods);
2519 bin_clear_free(eap->identity, eap->identity_len);
2520 os_free(eap->anonymous_identity);
2521 os_free(eap->imsi_identity);
2522 bin_clear_free(eap->password, eap->password_len);
2523 os_free(eap->ca_cert);
2524 os_free(eap->ca_path);
2525 os_free(eap->client_cert);
2526 os_free(eap->private_key);
2527 str_clear_free(eap->private_key_passwd);
2528 os_free(eap->dh_file);
2529 os_free(eap->subject_match);
2530 os_free(eap->check_cert_subject);
2531 os_free(eap->altsubject_match);
2532 os_free(eap->domain_suffix_match);
2533 os_free(eap->domain_match);
2534 os_free(eap->ca_cert2);
2535 os_free(eap->ca_path2);
2536 os_free(eap->client_cert2);
2537 os_free(eap->private_key2);
2538 str_clear_free(eap->private_key2_passwd);
2539 os_free(eap->dh_file2);
2540 os_free(eap->subject_match2);
2541 os_free(eap->check_cert_subject2);
2542 os_free(eap->altsubject_match2);
2543 os_free(eap->domain_suffix_match2);
2544 os_free(eap->domain_match2);
2545 os_free(eap->phase1);
2546 os_free(eap->phase2);
2547 os_free(eap->pcsc);
2548 str_clear_free(eap->pin);
2549 os_free(eap->engine_id);
2550 os_free(eap->key_id);
2551 os_free(eap->cert_id);
2552 os_free(eap->ca_cert_id);
2553 os_free(eap->key2_id);
2554 os_free(eap->cert2_id);
2555 os_free(eap->ca_cert2_id);
2556 str_clear_free(eap->pin2);
2557 os_free(eap->engine2_id);
2558 os_free(eap->otp);
2559 os_free(eap->pending_req_otp);
2560 os_free(eap->pac_file);
2561 bin_clear_free(eap->new_password, eap->new_password_len);
2562 str_clear_free(eap->external_sim_resp);
2563 os_free(eap->openssl_ciphers);
2564 }
2565 #endif /* IEEE8021X_EAPOL */
2566
2567
2568 /**
2569 * wpa_config_free_ssid - Free network/ssid configuration data
2570 * @ssid: Configuration data for the network
2571 *
2572 * This function frees all resources allocated for the network configuration
2573 * data.
2574 */
wpa_config_free_ssid(struct wpa_ssid * ssid)2575 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2576 {
2577 struct psk_list_entry *psk;
2578
2579 os_free(ssid->ssid);
2580 str_clear_free(ssid->passphrase);
2581 os_free(ssid->ext_psk);
2582 str_clear_free(ssid->sae_password);
2583 os_free(ssid->sae_password_id);
2584 #ifdef IEEE8021X_EAPOL
2585 eap_peer_config_free(&ssid->eap);
2586 #endif /* IEEE8021X_EAPOL */
2587 os_free(ssid->id_str);
2588 os_free(ssid->scan_freq);
2589 os_free(ssid->freq_list);
2590 os_free(ssid->bgscan);
2591 os_free(ssid->p2p_client_list);
2592 os_free(ssid->bssid_blacklist);
2593 os_free(ssid->bssid_whitelist);
2594 #ifdef CONFIG_HT_OVERRIDES
2595 os_free(ssid->ht_mcs);
2596 #endif /* CONFIG_HT_OVERRIDES */
2597 #ifdef CONFIG_MESH
2598 os_free(ssid->mesh_basic_rates);
2599 #endif /* CONFIG_MESH */
2600 #ifdef CONFIG_HS20
2601 os_free(ssid->roaming_consortium_selection);
2602 #endif /* CONFIG_HS20 */
2603 os_free(ssid->dpp_connector);
2604 bin_clear_free(ssid->dpp_netaccesskey, ssid->dpp_netaccesskey_len);
2605 os_free(ssid->dpp_csign);
2606 while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2607 list))) {
2608 dl_list_del(&psk->list);
2609 bin_clear_free(psk, sizeof(*psk));
2610 }
2611 bin_clear_free(ssid, sizeof(*ssid));
2612 }
2613
2614
wpa_config_free_cred(struct wpa_cred * cred)2615 void wpa_config_free_cred(struct wpa_cred *cred)
2616 {
2617 size_t i;
2618
2619 os_free(cred->realm);
2620 str_clear_free(cred->username);
2621 str_clear_free(cred->password);
2622 os_free(cred->ca_cert);
2623 os_free(cred->client_cert);
2624 os_free(cred->private_key);
2625 str_clear_free(cred->private_key_passwd);
2626 os_free(cred->imsi);
2627 str_clear_free(cred->milenage);
2628 for (i = 0; i < cred->num_domain; i++)
2629 os_free(cred->domain[i]);
2630 os_free(cred->domain);
2631 os_free(cred->domain_suffix_match);
2632 os_free(cred->eap_method);
2633 os_free(cred->phase1);
2634 os_free(cred->phase2);
2635 os_free(cred->excluded_ssid);
2636 os_free(cred->roaming_partner);
2637 os_free(cred->provisioning_sp);
2638 for (i = 0; i < cred->num_req_conn_capab; i++)
2639 os_free(cred->req_conn_capab_port[i]);
2640 os_free(cred->req_conn_capab_port);
2641 os_free(cred->req_conn_capab_proto);
2642 os_free(cred);
2643 }
2644
2645
wpa_config_flush_blobs(struct wpa_config * config)2646 void wpa_config_flush_blobs(struct wpa_config *config)
2647 {
2648 #ifndef CONFIG_NO_CONFIG_BLOBS
2649 struct wpa_config_blob *blob, *prev;
2650
2651 blob = config->blobs;
2652 config->blobs = NULL;
2653 while (blob) {
2654 prev = blob;
2655 blob = blob->next;
2656 wpa_config_free_blob(prev);
2657 }
2658 #endif /* CONFIG_NO_CONFIG_BLOBS */
2659 }
2660
2661
2662 /**
2663 * wpa_config_free - Free configuration data
2664 * @config: Configuration data from wpa_config_read()
2665 *
2666 * This function frees all resources allocated for the configuration data by
2667 * wpa_config_read().
2668 */
wpa_config_free(struct wpa_config * config)2669 void wpa_config_free(struct wpa_config *config)
2670 {
2671 struct wpa_ssid *ssid, *prev = NULL;
2672 struct wpa_cred *cred, *cprev;
2673 int i;
2674
2675 ssid = config->ssid;
2676 while (ssid) {
2677 prev = ssid;
2678 ssid = ssid->next;
2679 wpa_config_free_ssid(prev);
2680 }
2681
2682 cred = config->cred;
2683 while (cred) {
2684 cprev = cred;
2685 cred = cred->next;
2686 wpa_config_free_cred(cprev);
2687 }
2688
2689 wpa_config_flush_blobs(config);
2690
2691 wpabuf_free(config->wps_vendor_ext_m1);
2692 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2693 wpabuf_free(config->wps_vendor_ext[i]);
2694 os_free(config->ctrl_interface);
2695 os_free(config->ctrl_interface_group);
2696 os_free(config->opensc_engine_path);
2697 os_free(config->pkcs11_engine_path);
2698 os_free(config->pkcs11_module_path);
2699 os_free(config->openssl_ciphers);
2700 os_free(config->pcsc_reader);
2701 str_clear_free(config->pcsc_pin);
2702 os_free(config->driver_param);
2703 os_free(config->device_name);
2704 os_free(config->manufacturer);
2705 os_free(config->model_name);
2706 os_free(config->model_number);
2707 os_free(config->serial_number);
2708 os_free(config->config_methods);
2709 os_free(config->p2p_ssid_postfix);
2710 os_free(config->pssid);
2711 os_free(config->p2p_pref_chan);
2712 os_free(config->p2p_no_go_freq.range);
2713 os_free(config->autoscan);
2714 os_free(config->freq_list);
2715 wpabuf_free(config->wps_nfc_dh_pubkey);
2716 wpabuf_free(config->wps_nfc_dh_privkey);
2717 wpabuf_free(config->wps_nfc_dev_pw);
2718 os_free(config->ext_password_backend);
2719 os_free(config->sae_groups);
2720 wpabuf_free(config->ap_vendor_elements);
2721 os_free(config->osu_dir);
2722 os_free(config->bgscan);
2723 os_free(config->wowlan_triggers);
2724 os_free(config->fst_group_id);
2725 os_free(config->sched_scan_plans);
2726 #ifdef CONFIG_MBO
2727 os_free(config->non_pref_chan);
2728 #endif /* CONFIG_MBO */
2729
2730 os_free(config);
2731 }
2732
2733
2734 /**
2735 * wpa_config_foreach_network - Iterate over each configured network
2736 * @config: Configuration data from wpa_config_read()
2737 * @func: Callback function to process each network
2738 * @arg: Opaque argument to pass to callback function
2739 *
2740 * Iterate over the set of configured networks calling the specified
2741 * function for each item. We guard against callbacks removing the
2742 * supplied network.
2743 */
wpa_config_foreach_network(struct wpa_config * config,void (* func)(void *,struct wpa_ssid *),void * arg)2744 void wpa_config_foreach_network(struct wpa_config *config,
2745 void (*func)(void *, struct wpa_ssid *),
2746 void *arg)
2747 {
2748 struct wpa_ssid *ssid, *next;
2749
2750 ssid = config->ssid;
2751 while (ssid) {
2752 next = ssid->next;
2753 func(arg, ssid);
2754 ssid = next;
2755 }
2756 }
2757
2758
2759 /**
2760 * wpa_config_get_network - Get configured network based on id
2761 * @config: Configuration data from wpa_config_read()
2762 * @id: Unique network id to search for
2763 * Returns: Network configuration or %NULL if not found
2764 */
wpa_config_get_network(struct wpa_config * config,int id)2765 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2766 {
2767 struct wpa_ssid *ssid;
2768
2769 ssid = config->ssid;
2770 while (ssid) {
2771 if (id == ssid->id)
2772 break;
2773 ssid = ssid->next;
2774 }
2775
2776 return ssid;
2777 }
2778
2779
2780 /**
2781 * wpa_config_add_network - Add a new network with empty configuration
2782 * @config: Configuration data from wpa_config_read()
2783 * Returns: The new network configuration or %NULL if operation failed
2784 */
wpa_config_add_network(struct wpa_config * config)2785 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2786 {
2787 int id;
2788 struct wpa_ssid *ssid, *last = NULL;
2789
2790 id = -1;
2791 ssid = config->ssid;
2792 while (ssid) {
2793 if (ssid->id > id)
2794 id = ssid->id;
2795 last = ssid;
2796 ssid = ssid->next;
2797 }
2798 id++;
2799
2800 ssid = os_zalloc(sizeof(*ssid));
2801 if (ssid == NULL)
2802 return NULL;
2803 ssid->id = id;
2804 dl_list_init(&ssid->psk_list);
2805 if (last)
2806 last->next = ssid;
2807 else
2808 config->ssid = ssid;
2809
2810 wpa_config_update_prio_list(config);
2811
2812 return ssid;
2813 }
2814
2815
2816 /**
2817 * wpa_config_remove_network - Remove a configured network based on id
2818 * @config: Configuration data from wpa_config_read()
2819 * @id: Unique network id to search for
2820 * Returns: 0 on success, or -1 if the network was not found
2821 */
wpa_config_remove_network(struct wpa_config * config,int id)2822 int wpa_config_remove_network(struct wpa_config *config, int id)
2823 {
2824 struct wpa_ssid *ssid, *prev = NULL;
2825
2826 ssid = config->ssid;
2827 while (ssid) {
2828 if (id == ssid->id)
2829 break;
2830 prev = ssid;
2831 ssid = ssid->next;
2832 }
2833
2834 if (ssid == NULL)
2835 return -1;
2836
2837 if (prev)
2838 prev->next = ssid->next;
2839 else
2840 config->ssid = ssid->next;
2841
2842 wpa_config_update_prio_list(config);
2843 wpa_config_free_ssid(ssid);
2844 return 0;
2845 }
2846
2847
2848 /**
2849 * wpa_config_set_network_defaults - Set network default values
2850 * @ssid: Pointer to network configuration data
2851 */
wpa_config_set_network_defaults(struct wpa_ssid * ssid)2852 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2853 {
2854 ssid->proto = DEFAULT_PROTO;
2855 ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2856 ssid->group_cipher = DEFAULT_GROUP;
2857 ssid->key_mgmt = DEFAULT_KEY_MGMT;
2858 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2859 ssid->ht = 1;
2860 #ifdef IEEE8021X_EAPOL
2861 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2862 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2863 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2864 ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2865 #endif /* IEEE8021X_EAPOL */
2866 #ifdef CONFIG_MESH
2867 ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2868 ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2869 ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2870 ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2871 ssid->mesh_rssi_threshold = DEFAULT_MESH_RSSI_THRESHOLD;
2872 #endif /* CONFIG_MESH */
2873 #ifdef CONFIG_HT_OVERRIDES
2874 ssid->disable_ht = DEFAULT_DISABLE_HT;
2875 ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2876 ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2877 ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2878 ssid->tx_stbc = DEFAULT_TX_STBC;
2879 ssid->rx_stbc = DEFAULT_RX_STBC;
2880 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2881 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2882 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2883 #endif /* CONFIG_HT_OVERRIDES */
2884 #ifdef CONFIG_VHT_OVERRIDES
2885 ssid->vht_rx_mcs_nss_1 = -1;
2886 ssid->vht_rx_mcs_nss_2 = -1;
2887 ssid->vht_rx_mcs_nss_3 = -1;
2888 ssid->vht_rx_mcs_nss_4 = -1;
2889 ssid->vht_rx_mcs_nss_5 = -1;
2890 ssid->vht_rx_mcs_nss_6 = -1;
2891 ssid->vht_rx_mcs_nss_7 = -1;
2892 ssid->vht_rx_mcs_nss_8 = -1;
2893 ssid->vht_tx_mcs_nss_1 = -1;
2894 ssid->vht_tx_mcs_nss_2 = -1;
2895 ssid->vht_tx_mcs_nss_3 = -1;
2896 ssid->vht_tx_mcs_nss_4 = -1;
2897 ssid->vht_tx_mcs_nss_5 = -1;
2898 ssid->vht_tx_mcs_nss_6 = -1;
2899 ssid->vht_tx_mcs_nss_7 = -1;
2900 ssid->vht_tx_mcs_nss_8 = -1;
2901 #endif /* CONFIG_VHT_OVERRIDES */
2902 ssid->proactive_key_caching = -1;
2903 #ifdef CONFIG_IEEE80211W
2904 ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2905 #endif /* CONFIG_IEEE80211W */
2906 #ifdef CONFIG_MACSEC
2907 ssid->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
2908 #endif /* CONFIG_MACSEC */
2909 ssid->mac_addr = -1;
2910 ssid->max_oper_chwidth = DEFAULT_MAX_OPER_CHWIDTH;
2911 }
2912
2913
2914 /**
2915 * wpa_config_set - Set a variable in network configuration
2916 * @ssid: Pointer to network configuration data
2917 * @var: Variable name, e.g., "ssid"
2918 * @value: Variable value
2919 * @line: Line number in configuration file or 0 if not used
2920 * Returns: 0 on success with possible change in the value, 1 on success with
2921 * no change to previously configured value, or -1 on failure
2922 *
2923 * This function can be used to set network configuration variables based on
2924 * both the configuration file and management interface input. The value
2925 * parameter must be in the same format as the text-based configuration file is
2926 * using. For example, strings are using double quotation marks.
2927 */
wpa_config_set(struct wpa_ssid * ssid,const char * var,const char * value,int line)2928 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2929 int line)
2930 {
2931 size_t i;
2932 int ret = 0;
2933
2934 if (ssid == NULL || var == NULL || value == NULL)
2935 return -1;
2936
2937 for (i = 0; i < NUM_SSID_FIELDS; i++) {
2938 const struct parse_data *field = &ssid_fields[i];
2939 if (os_strcmp(var, field->name) != 0)
2940 continue;
2941
2942 ret = field->parser(field, ssid, line, value);
2943 if (ret < 0) {
2944 if (line) {
2945 wpa_printf(MSG_ERROR, "Line %d: failed to "
2946 "parse %s '%s'.", line, var, value);
2947 }
2948 ret = -1;
2949 }
2950 break;
2951 }
2952 if (i == NUM_SSID_FIELDS) {
2953 if (line) {
2954 wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2955 "'%s'.", line, var);
2956 }
2957 ret = -1;
2958 }
2959
2960 return ret;
2961 }
2962
2963
wpa_config_set_quoted(struct wpa_ssid * ssid,const char * var,const char * value)2964 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2965 const char *value)
2966 {
2967 size_t len;
2968 char *buf;
2969 int ret;
2970
2971 len = os_strlen(value);
2972 buf = os_malloc(len + 3);
2973 if (buf == NULL)
2974 return -1;
2975 buf[0] = '"';
2976 os_memcpy(buf + 1, value, len);
2977 buf[len + 1] = '"';
2978 buf[len + 2] = '\0';
2979 ret = wpa_config_set(ssid, var, buf, 0);
2980 os_free(buf);
2981 return ret;
2982 }
2983
2984
2985 /**
2986 * wpa_config_get_all - Get all options from network configuration
2987 * @ssid: Pointer to network configuration data
2988 * @get_keys: Determines if keys/passwords will be included in returned list
2989 * (if they may be exported)
2990 * Returns: %NULL terminated list of all set keys and their values in the form
2991 * of [key1, val1, key2, val2, ... , NULL]
2992 *
2993 * This function can be used to get list of all configured network properties.
2994 * The caller is responsible for freeing the returned list and all its
2995 * elements.
2996 */
wpa_config_get_all(struct wpa_ssid * ssid,int get_keys)2997 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2998 {
2999 #ifdef NO_CONFIG_WRITE
3000 return NULL;
3001 #else /* NO_CONFIG_WRITE */
3002 const struct parse_data *field;
3003 char *key, *value;
3004 size_t i;
3005 char **props;
3006 int fields_num;
3007
3008 get_keys = get_keys && ssid->export_keys;
3009
3010 props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
3011 if (!props)
3012 return NULL;
3013
3014 fields_num = 0;
3015 for (i = 0; i < NUM_SSID_FIELDS; i++) {
3016 field = &ssid_fields[i];
3017 if (field->key_data && !get_keys)
3018 continue;
3019 value = field->writer(field, ssid);
3020 if (value == NULL)
3021 continue;
3022 if (os_strlen(value) == 0) {
3023 os_free(value);
3024 continue;
3025 }
3026
3027 key = os_strdup(field->name);
3028 if (key == NULL) {
3029 os_free(value);
3030 goto err;
3031 }
3032
3033 props[fields_num * 2] = key;
3034 props[fields_num * 2 + 1] = value;
3035
3036 fields_num++;
3037 }
3038
3039 return props;
3040
3041 err:
3042 for (i = 0; props[i]; i++)
3043 os_free(props[i]);
3044 os_free(props);
3045 return NULL;
3046 #endif /* NO_CONFIG_WRITE */
3047 }
3048
3049
3050 #ifndef NO_CONFIG_WRITE
3051 /**
3052 * wpa_config_get - Get a variable in network configuration
3053 * @ssid: Pointer to network configuration data
3054 * @var: Variable name, e.g., "ssid"
3055 * Returns: Value of the variable or %NULL on failure
3056 *
3057 * This function can be used to get network configuration variables. The
3058 * returned value is a copy of the configuration variable in text format, i.e,.
3059 * the same format that the text-based configuration file and wpa_config_set()
3060 * are using for the value. The caller is responsible for freeing the returned
3061 * value.
3062 */
wpa_config_get(struct wpa_ssid * ssid,const char * var)3063 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
3064 {
3065 size_t i;
3066
3067 if (ssid == NULL || var == NULL)
3068 return NULL;
3069
3070 for (i = 0; i < NUM_SSID_FIELDS; i++) {
3071 const struct parse_data *field = &ssid_fields[i];
3072 if (os_strcmp(var, field->name) == 0) {
3073 char *ret = field->writer(field, ssid);
3074
3075 if (ret && has_newline(ret)) {
3076 wpa_printf(MSG_ERROR,
3077 "Found newline in value for %s; not returning it",
3078 var);
3079 os_free(ret);
3080 ret = NULL;
3081 }
3082
3083 return ret;
3084 }
3085 }
3086
3087 return NULL;
3088 }
3089
3090
3091 /**
3092 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
3093 * @ssid: Pointer to network configuration data
3094 * @var: Variable name, e.g., "ssid"
3095 * Returns: Value of the variable or %NULL on failure
3096 *
3097 * This function can be used to get network configuration variable like
3098 * wpa_config_get(). The only difference is that this functions does not expose
3099 * key/password material from the configuration. In case a key/password field
3100 * is requested, the returned value is an empty string or %NULL if the variable
3101 * is not set or "*" if the variable is set (regardless of its value). The
3102 * returned value is a copy of the configuration variable in text format, i.e,.
3103 * the same format that the text-based configuration file and wpa_config_set()
3104 * are using for the value. The caller is responsible for freeing the returned
3105 * value.
3106 */
wpa_config_get_no_key(struct wpa_ssid * ssid,const char * var)3107 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
3108 {
3109 size_t i;
3110
3111 if (ssid == NULL || var == NULL)
3112 return NULL;
3113
3114 for (i = 0; i < NUM_SSID_FIELDS; i++) {
3115 const struct parse_data *field = &ssid_fields[i];
3116 if (os_strcmp(var, field->name) == 0) {
3117 char *res = field->writer(field, ssid);
3118 if (field->key_data) {
3119 if (res && res[0]) {
3120 wpa_printf(MSG_DEBUG, "Do not allow "
3121 "key_data field to be "
3122 "exposed");
3123 str_clear_free(res);
3124 return os_strdup("*");
3125 }
3126
3127 os_free(res);
3128 return NULL;
3129 }
3130 return res;
3131 }
3132 }
3133
3134 return NULL;
3135 }
3136 #endif /* NO_CONFIG_WRITE */
3137
3138
3139 /**
3140 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
3141 * @ssid: Pointer to network configuration data
3142 *
3143 * This function must be called to update WPA PSK when either SSID or the
3144 * passphrase has changed for the network configuration.
3145 */
wpa_config_update_psk(struct wpa_ssid * ssid)3146 void wpa_config_update_psk(struct wpa_ssid *ssid)
3147 {
3148 #ifndef CONFIG_NO_PBKDF2
3149 pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
3150 ssid->psk, PMK_LEN);
3151 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
3152 ssid->psk, PMK_LEN);
3153 ssid->psk_set = 1;
3154 #endif /* CONFIG_NO_PBKDF2 */
3155 }
3156
3157
wpa_config_set_cred_req_conn_capab(struct wpa_cred * cred,const char * value)3158 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
3159 const char *value)
3160 {
3161 u8 *proto;
3162 int **port;
3163 int *ports, *nports;
3164 const char *pos;
3165 unsigned int num_ports;
3166
3167 proto = os_realloc_array(cred->req_conn_capab_proto,
3168 cred->num_req_conn_capab + 1, sizeof(u8));
3169 if (proto == NULL)
3170 return -1;
3171 cred->req_conn_capab_proto = proto;
3172
3173 port = os_realloc_array(cred->req_conn_capab_port,
3174 cred->num_req_conn_capab + 1, sizeof(int *));
3175 if (port == NULL)
3176 return -1;
3177 cred->req_conn_capab_port = port;
3178
3179 proto[cred->num_req_conn_capab] = atoi(value);
3180
3181 pos = os_strchr(value, ':');
3182 if (pos == NULL) {
3183 port[cred->num_req_conn_capab] = NULL;
3184 cred->num_req_conn_capab++;
3185 return 0;
3186 }
3187 pos++;
3188
3189 ports = NULL;
3190 num_ports = 0;
3191
3192 while (*pos) {
3193 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3194 if (nports == NULL) {
3195 os_free(ports);
3196 return -1;
3197 }
3198 ports = nports;
3199 ports[num_ports++] = atoi(pos);
3200
3201 pos = os_strchr(pos, ',');
3202 if (pos == NULL)
3203 break;
3204 pos++;
3205 }
3206
3207 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3208 if (nports == NULL) {
3209 os_free(ports);
3210 return -1;
3211 }
3212 ports = nports;
3213 ports[num_ports] = -1;
3214
3215 port[cred->num_req_conn_capab] = ports;
3216 cred->num_req_conn_capab++;
3217 return 0;
3218 }
3219
3220
wpa_config_set_cred_roaming_consortiums(struct wpa_cred * cred,const char * value)3221 static int wpa_config_set_cred_roaming_consortiums(struct wpa_cred *cred,
3222 const char *value)
3223 {
3224 u8 roaming_consortiums[MAX_ROAMING_CONS][MAX_ROAMING_CONS_OI_LEN];
3225 size_t roaming_consortiums_len[MAX_ROAMING_CONS];
3226 unsigned int num_roaming_consortiums = 0;
3227 const char *pos, *end;
3228 size_t len;
3229
3230 os_memset(roaming_consortiums, 0, sizeof(roaming_consortiums));
3231 os_memset(roaming_consortiums_len, 0, sizeof(roaming_consortiums_len));
3232
3233 for (pos = value;;) {
3234 end = os_strchr(pos, ',');
3235 len = end ? (size_t) (end - pos) : os_strlen(pos);
3236 if (!end && len == 0)
3237 break;
3238 if (len == 0 || (len & 1) != 0 ||
3239 len / 2 > MAX_ROAMING_CONS_OI_LEN ||
3240 hexstr2bin(pos,
3241 roaming_consortiums[num_roaming_consortiums],
3242 len / 2) < 0) {
3243 wpa_printf(MSG_INFO,
3244 "Invalid roaming_consortiums entry: %s",
3245 pos);
3246 return -1;
3247 }
3248 roaming_consortiums_len[num_roaming_consortiums] = len / 2;
3249 num_roaming_consortiums++;
3250
3251 if (!end)
3252 break;
3253
3254 if (num_roaming_consortiums >= MAX_ROAMING_CONS) {
3255 wpa_printf(MSG_INFO,
3256 "Too many roaming_consortiums OIs");
3257 return -1;
3258 }
3259
3260 pos = end + 1;
3261 }
3262
3263 os_memcpy(cred->roaming_consortiums, roaming_consortiums,
3264 sizeof(roaming_consortiums));
3265 os_memcpy(cred->roaming_consortiums_len, roaming_consortiums_len,
3266 sizeof(roaming_consortiums_len));
3267 cred->num_roaming_consortiums = num_roaming_consortiums;
3268
3269 return 0;
3270 }
3271
3272
wpa_config_set_cred(struct wpa_cred * cred,const char * var,const char * value,int line)3273 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
3274 const char *value, int line)
3275 {
3276 char *val;
3277 size_t len;
3278 int res;
3279
3280 if (os_strcmp(var, "temporary") == 0) {
3281 cred->temporary = atoi(value);
3282 return 0;
3283 }
3284
3285 if (os_strcmp(var, "priority") == 0) {
3286 cred->priority = atoi(value);
3287 return 0;
3288 }
3289
3290 if (os_strcmp(var, "sp_priority") == 0) {
3291 int prio = atoi(value);
3292 if (prio < 0 || prio > 255)
3293 return -1;
3294 cred->sp_priority = prio;
3295 return 0;
3296 }
3297
3298 if (os_strcmp(var, "pcsc") == 0) {
3299 cred->pcsc = atoi(value);
3300 return 0;
3301 }
3302
3303 if (os_strcmp(var, "eap") == 0) {
3304 struct eap_method_type method;
3305 method.method = eap_peer_get_type(value, &method.vendor);
3306 if (method.vendor == EAP_VENDOR_IETF &&
3307 method.method == EAP_TYPE_NONE) {
3308 wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
3309 "for a credential", line, value);
3310 return -1;
3311 }
3312 os_free(cred->eap_method);
3313 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
3314 if (cred->eap_method == NULL)
3315 return -1;
3316 os_memcpy(cred->eap_method, &method, sizeof(method));
3317 return 0;
3318 }
3319
3320 if (os_strcmp(var, "password") == 0 &&
3321 os_strncmp(value, "ext:", 4) == 0) {
3322 if (has_newline(value))
3323 return -1;
3324 str_clear_free(cred->password);
3325 cred->password = os_strdup(value);
3326 cred->ext_password = 1;
3327 return 0;
3328 }
3329
3330 if (os_strcmp(var, "update_identifier") == 0) {
3331 cred->update_identifier = atoi(value);
3332 return 0;
3333 }
3334
3335 if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
3336 cred->min_dl_bandwidth_home = atoi(value);
3337 return 0;
3338 }
3339
3340 if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
3341 cred->min_ul_bandwidth_home = atoi(value);
3342 return 0;
3343 }
3344
3345 if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
3346 cred->min_dl_bandwidth_roaming = atoi(value);
3347 return 0;
3348 }
3349
3350 if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
3351 cred->min_ul_bandwidth_roaming = atoi(value);
3352 return 0;
3353 }
3354
3355 if (os_strcmp(var, "max_bss_load") == 0) {
3356 cred->max_bss_load = atoi(value);
3357 return 0;
3358 }
3359
3360 if (os_strcmp(var, "req_conn_capab") == 0)
3361 return wpa_config_set_cred_req_conn_capab(cred, value);
3362
3363 if (os_strcmp(var, "ocsp") == 0) {
3364 cred->ocsp = atoi(value);
3365 return 0;
3366 }
3367
3368 if (os_strcmp(var, "sim_num") == 0) {
3369 cred->sim_num = atoi(value);
3370 return 0;
3371 }
3372
3373 val = wpa_config_parse_string(value, &len);
3374 if (val == NULL ||
3375 (os_strcmp(var, "excluded_ssid") != 0 &&
3376 os_strcmp(var, "roaming_consortium") != 0 &&
3377 os_strcmp(var, "required_roaming_consortium") != 0 &&
3378 has_newline(val))) {
3379 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
3380 "value '%s'.", line, var, value);
3381 os_free(val);
3382 return -1;
3383 }
3384
3385 if (os_strcmp(var, "realm") == 0) {
3386 os_free(cred->realm);
3387 cred->realm = val;
3388 return 0;
3389 }
3390
3391 if (os_strcmp(var, "username") == 0) {
3392 str_clear_free(cred->username);
3393 cred->username = val;
3394 return 0;
3395 }
3396
3397 if (os_strcmp(var, "password") == 0) {
3398 str_clear_free(cred->password);
3399 cred->password = val;
3400 cred->ext_password = 0;
3401 return 0;
3402 }
3403
3404 if (os_strcmp(var, "ca_cert") == 0) {
3405 os_free(cred->ca_cert);
3406 cred->ca_cert = val;
3407 return 0;
3408 }
3409
3410 if (os_strcmp(var, "client_cert") == 0) {
3411 os_free(cred->client_cert);
3412 cred->client_cert = val;
3413 return 0;
3414 }
3415
3416 if (os_strcmp(var, "private_key") == 0) {
3417 os_free(cred->private_key);
3418 cred->private_key = val;
3419 return 0;
3420 }
3421
3422 if (os_strcmp(var, "private_key_passwd") == 0) {
3423 str_clear_free(cred->private_key_passwd);
3424 cred->private_key_passwd = val;
3425 return 0;
3426 }
3427
3428 if (os_strcmp(var, "imsi") == 0) {
3429 os_free(cred->imsi);
3430 cred->imsi = val;
3431 return 0;
3432 }
3433
3434 if (os_strcmp(var, "milenage") == 0) {
3435 str_clear_free(cred->milenage);
3436 cred->milenage = val;
3437 return 0;
3438 }
3439
3440 if (os_strcmp(var, "domain_suffix_match") == 0) {
3441 os_free(cred->domain_suffix_match);
3442 cred->domain_suffix_match = val;
3443 return 0;
3444 }
3445
3446 if (os_strcmp(var, "domain") == 0) {
3447 char **new_domain;
3448 new_domain = os_realloc_array(cred->domain,
3449 cred->num_domain + 1,
3450 sizeof(char *));
3451 if (new_domain == NULL) {
3452 os_free(val);
3453 return -1;
3454 }
3455 new_domain[cred->num_domain++] = val;
3456 cred->domain = new_domain;
3457 return 0;
3458 }
3459
3460 if (os_strcmp(var, "phase1") == 0) {
3461 os_free(cred->phase1);
3462 cred->phase1 = val;
3463 return 0;
3464 }
3465
3466 if (os_strcmp(var, "phase2") == 0) {
3467 os_free(cred->phase2);
3468 cred->phase2 = val;
3469 return 0;
3470 }
3471
3472 if (os_strcmp(var, "roaming_consortium") == 0) {
3473 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
3474 wpa_printf(MSG_ERROR, "Line %d: invalid "
3475 "roaming_consortium length %d (3..15 "
3476 "expected)", line, (int) len);
3477 os_free(val);
3478 return -1;
3479 }
3480 os_memcpy(cred->roaming_consortium, val, len);
3481 cred->roaming_consortium_len = len;
3482 os_free(val);
3483 return 0;
3484 }
3485
3486 if (os_strcmp(var, "required_roaming_consortium") == 0) {
3487 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
3488 {
3489 wpa_printf(MSG_ERROR, "Line %d: invalid "
3490 "required_roaming_consortium length %d "
3491 "(3..15 expected)", line, (int) len);
3492 os_free(val);
3493 return -1;
3494 }
3495 os_memcpy(cred->required_roaming_consortium, val, len);
3496 cred->required_roaming_consortium_len = len;
3497 os_free(val);
3498 return 0;
3499 }
3500
3501 if (os_strcmp(var, "roaming_consortiums") == 0) {
3502 res = wpa_config_set_cred_roaming_consortiums(cred, val);
3503 if (res < 0)
3504 wpa_printf(MSG_ERROR,
3505 "Line %d: invalid roaming_consortiums",
3506 line);
3507 os_free(val);
3508 return res;
3509 }
3510
3511 if (os_strcmp(var, "excluded_ssid") == 0) {
3512 struct excluded_ssid *e;
3513
3514 if (len > SSID_MAX_LEN) {
3515 wpa_printf(MSG_ERROR, "Line %d: invalid "
3516 "excluded_ssid length %d", line, (int) len);
3517 os_free(val);
3518 return -1;
3519 }
3520
3521 e = os_realloc_array(cred->excluded_ssid,
3522 cred->num_excluded_ssid + 1,
3523 sizeof(struct excluded_ssid));
3524 if (e == NULL) {
3525 os_free(val);
3526 return -1;
3527 }
3528 cred->excluded_ssid = e;
3529
3530 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
3531 os_memcpy(e->ssid, val, len);
3532 e->ssid_len = len;
3533
3534 os_free(val);
3535
3536 return 0;
3537 }
3538
3539 if (os_strcmp(var, "roaming_partner") == 0) {
3540 struct roaming_partner *p;
3541 char *pos;
3542
3543 p = os_realloc_array(cred->roaming_partner,
3544 cred->num_roaming_partner + 1,
3545 sizeof(struct roaming_partner));
3546 if (p == NULL) {
3547 os_free(val);
3548 return -1;
3549 }
3550 cred->roaming_partner = p;
3551
3552 p = &cred->roaming_partner[cred->num_roaming_partner];
3553
3554 pos = os_strchr(val, ',');
3555 if (pos == NULL) {
3556 os_free(val);
3557 return -1;
3558 }
3559 *pos++ = '\0';
3560 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3561 os_free(val);
3562 return -1;
3563 }
3564 os_memcpy(p->fqdn, val, pos - val);
3565
3566 p->exact_match = atoi(pos);
3567
3568 pos = os_strchr(pos, ',');
3569 if (pos == NULL) {
3570 os_free(val);
3571 return -1;
3572 }
3573 *pos++ = '\0';
3574
3575 p->priority = atoi(pos);
3576
3577 pos = os_strchr(pos, ',');
3578 if (pos == NULL) {
3579 os_free(val);
3580 return -1;
3581 }
3582 *pos++ = '\0';
3583
3584 if (os_strlen(pos) >= sizeof(p->country)) {
3585 os_free(val);
3586 return -1;
3587 }
3588 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3589
3590 cred->num_roaming_partner++;
3591 os_free(val);
3592
3593 return 0;
3594 }
3595
3596 if (os_strcmp(var, "provisioning_sp") == 0) {
3597 os_free(cred->provisioning_sp);
3598 cred->provisioning_sp = val;
3599 return 0;
3600 }
3601
3602 if (line) {
3603 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3604 line, var);
3605 }
3606
3607 os_free(val);
3608
3609 return -1;
3610 }
3611
3612
alloc_int_str(int val)3613 static char * alloc_int_str(int val)
3614 {
3615 const unsigned int bufsize = 20;
3616 char *buf;
3617 int res;
3618
3619 buf = os_malloc(bufsize);
3620 if (buf == NULL)
3621 return NULL;
3622 res = os_snprintf(buf, bufsize, "%d", val);
3623 if (os_snprintf_error(bufsize, res)) {
3624 os_free(buf);
3625 buf = NULL;
3626 }
3627 return buf;
3628 }
3629
3630
alloc_strdup(const char * str)3631 static char * alloc_strdup(const char *str)
3632 {
3633 if (str == NULL)
3634 return NULL;
3635 return os_strdup(str);
3636 }
3637
3638
wpa_config_get_cred_no_key(struct wpa_cred * cred,const char * var)3639 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3640 {
3641 if (os_strcmp(var, "temporary") == 0)
3642 return alloc_int_str(cred->temporary);
3643
3644 if (os_strcmp(var, "priority") == 0)
3645 return alloc_int_str(cred->priority);
3646
3647 if (os_strcmp(var, "sp_priority") == 0)
3648 return alloc_int_str(cred->sp_priority);
3649
3650 if (os_strcmp(var, "pcsc") == 0)
3651 return alloc_int_str(cred->pcsc);
3652
3653 if (os_strcmp(var, "eap") == 0) {
3654 if (!cred->eap_method)
3655 return NULL;
3656 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3657 cred->eap_method[0].method));
3658 }
3659
3660 if (os_strcmp(var, "update_identifier") == 0)
3661 return alloc_int_str(cred->update_identifier);
3662
3663 if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3664 return alloc_int_str(cred->min_dl_bandwidth_home);
3665
3666 if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3667 return alloc_int_str(cred->min_ul_bandwidth_home);
3668
3669 if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3670 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3671
3672 if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3673 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3674
3675 if (os_strcmp(var, "max_bss_load") == 0)
3676 return alloc_int_str(cred->max_bss_load);
3677
3678 if (os_strcmp(var, "req_conn_capab") == 0) {
3679 unsigned int i;
3680 char *buf, *end, *pos;
3681 int ret;
3682
3683 if (!cred->num_req_conn_capab)
3684 return NULL;
3685
3686 buf = os_malloc(4000);
3687 if (buf == NULL)
3688 return NULL;
3689 pos = buf;
3690 end = pos + 4000;
3691 for (i = 0; i < cred->num_req_conn_capab; i++) {
3692 int *ports;
3693
3694 ret = os_snprintf(pos, end - pos, "%s%u",
3695 i > 0 ? "\n" : "",
3696 cred->req_conn_capab_proto[i]);
3697 if (os_snprintf_error(end - pos, ret))
3698 return buf;
3699 pos += ret;
3700
3701 ports = cred->req_conn_capab_port[i];
3702 if (ports) {
3703 int j;
3704 for (j = 0; ports[j] != -1; j++) {
3705 ret = os_snprintf(pos, end - pos,
3706 "%s%d",
3707 j > 0 ? "," : ":",
3708 ports[j]);
3709 if (os_snprintf_error(end - pos, ret))
3710 return buf;
3711 pos += ret;
3712 }
3713 }
3714 }
3715
3716 return buf;
3717 }
3718
3719 if (os_strcmp(var, "ocsp") == 0)
3720 return alloc_int_str(cred->ocsp);
3721
3722 if (os_strcmp(var, "realm") == 0)
3723 return alloc_strdup(cred->realm);
3724
3725 if (os_strcmp(var, "username") == 0)
3726 return alloc_strdup(cred->username);
3727
3728 if (os_strcmp(var, "password") == 0) {
3729 if (!cred->password)
3730 return NULL;
3731 return alloc_strdup("*");
3732 }
3733
3734 if (os_strcmp(var, "ca_cert") == 0)
3735 return alloc_strdup(cred->ca_cert);
3736
3737 if (os_strcmp(var, "client_cert") == 0)
3738 return alloc_strdup(cred->client_cert);
3739
3740 if (os_strcmp(var, "private_key") == 0)
3741 return alloc_strdup(cred->private_key);
3742
3743 if (os_strcmp(var, "private_key_passwd") == 0) {
3744 if (!cred->private_key_passwd)
3745 return NULL;
3746 return alloc_strdup("*");
3747 }
3748
3749 if (os_strcmp(var, "imsi") == 0)
3750 return alloc_strdup(cred->imsi);
3751
3752 if (os_strcmp(var, "milenage") == 0) {
3753 if (!(cred->milenage))
3754 return NULL;
3755 return alloc_strdup("*");
3756 }
3757
3758 if (os_strcmp(var, "domain_suffix_match") == 0)
3759 return alloc_strdup(cred->domain_suffix_match);
3760
3761 if (os_strcmp(var, "domain") == 0) {
3762 unsigned int i;
3763 char *buf, *end, *pos;
3764 int ret;
3765
3766 if (!cred->num_domain)
3767 return NULL;
3768
3769 buf = os_malloc(4000);
3770 if (buf == NULL)
3771 return NULL;
3772 pos = buf;
3773 end = pos + 4000;
3774
3775 for (i = 0; i < cred->num_domain; i++) {
3776 ret = os_snprintf(pos, end - pos, "%s%s",
3777 i > 0 ? "\n" : "", cred->domain[i]);
3778 if (os_snprintf_error(end - pos, ret))
3779 return buf;
3780 pos += ret;
3781 }
3782
3783 return buf;
3784 }
3785
3786 if (os_strcmp(var, "phase1") == 0)
3787 return alloc_strdup(cred->phase1);
3788
3789 if (os_strcmp(var, "phase2") == 0)
3790 return alloc_strdup(cred->phase2);
3791
3792 if (os_strcmp(var, "roaming_consortium") == 0) {
3793 size_t buflen;
3794 char *buf;
3795
3796 if (!cred->roaming_consortium_len)
3797 return NULL;
3798 buflen = cred->roaming_consortium_len * 2 + 1;
3799 buf = os_malloc(buflen);
3800 if (buf == NULL)
3801 return NULL;
3802 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3803 cred->roaming_consortium_len);
3804 return buf;
3805 }
3806
3807 if (os_strcmp(var, "required_roaming_consortium") == 0) {
3808 size_t buflen;
3809 char *buf;
3810
3811 if (!cred->required_roaming_consortium_len)
3812 return NULL;
3813 buflen = cred->required_roaming_consortium_len * 2 + 1;
3814 buf = os_malloc(buflen);
3815 if (buf == NULL)
3816 return NULL;
3817 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3818 cred->required_roaming_consortium_len);
3819 return buf;
3820 }
3821
3822 if (os_strcmp(var, "roaming_consortiums") == 0) {
3823 size_t buflen;
3824 char *buf, *pos;
3825 size_t i;
3826
3827 if (!cred->num_roaming_consortiums)
3828 return NULL;
3829 buflen = cred->num_roaming_consortiums *
3830 MAX_ROAMING_CONS_OI_LEN * 2 + 1;
3831 buf = os_malloc(buflen);
3832 if (!buf)
3833 return NULL;
3834 pos = buf;
3835 for (i = 0; i < cred->num_roaming_consortiums; i++) {
3836 if (i > 0)
3837 *pos++ = ',';
3838 pos += wpa_snprintf_hex(
3839 pos, buf + buflen - pos,
3840 cred->roaming_consortiums[i],
3841 cred->roaming_consortiums_len[i]);
3842 }
3843 *pos = '\0';
3844 return buf;
3845 }
3846
3847 if (os_strcmp(var, "excluded_ssid") == 0) {
3848 unsigned int i;
3849 char *buf, *end, *pos;
3850
3851 if (!cred->num_excluded_ssid)
3852 return NULL;
3853
3854 buf = os_malloc(4000);
3855 if (buf == NULL)
3856 return NULL;
3857 pos = buf;
3858 end = pos + 4000;
3859
3860 for (i = 0; i < cred->num_excluded_ssid; i++) {
3861 struct excluded_ssid *e;
3862 int ret;
3863
3864 e = &cred->excluded_ssid[i];
3865 ret = os_snprintf(pos, end - pos, "%s%s",
3866 i > 0 ? "\n" : "",
3867 wpa_ssid_txt(e->ssid, e->ssid_len));
3868 if (os_snprintf_error(end - pos, ret))
3869 return buf;
3870 pos += ret;
3871 }
3872
3873 return buf;
3874 }
3875
3876 if (os_strcmp(var, "roaming_partner") == 0) {
3877 unsigned int i;
3878 char *buf, *end, *pos;
3879
3880 if (!cred->num_roaming_partner)
3881 return NULL;
3882
3883 buf = os_malloc(4000);
3884 if (buf == NULL)
3885 return NULL;
3886 pos = buf;
3887 end = pos + 4000;
3888
3889 for (i = 0; i < cred->num_roaming_partner; i++) {
3890 struct roaming_partner *p;
3891 int ret;
3892
3893 p = &cred->roaming_partner[i];
3894 ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3895 i > 0 ? "\n" : "",
3896 p->fqdn, p->exact_match, p->priority,
3897 p->country);
3898 if (os_snprintf_error(end - pos, ret))
3899 return buf;
3900 pos += ret;
3901 }
3902
3903 return buf;
3904 }
3905
3906 if (os_strcmp(var, "provisioning_sp") == 0)
3907 return alloc_strdup(cred->provisioning_sp);
3908
3909 return NULL;
3910 }
3911
3912
wpa_config_get_cred(struct wpa_config * config,int id)3913 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3914 {
3915 struct wpa_cred *cred;
3916
3917 cred = config->cred;
3918 while (cred) {
3919 if (id == cred->id)
3920 break;
3921 cred = cred->next;
3922 }
3923
3924 return cred;
3925 }
3926
3927
wpa_config_add_cred(struct wpa_config * config)3928 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3929 {
3930 int id;
3931 struct wpa_cred *cred, *last = NULL;
3932
3933 id = -1;
3934 cred = config->cred;
3935 while (cred) {
3936 if (cred->id > id)
3937 id = cred->id;
3938 last = cred;
3939 cred = cred->next;
3940 }
3941 id++;
3942
3943 cred = os_zalloc(sizeof(*cred));
3944 if (cred == NULL)
3945 return NULL;
3946 cred->id = id;
3947 cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3948 if (last)
3949 last->next = cred;
3950 else
3951 config->cred = cred;
3952
3953 return cred;
3954 }
3955
3956
wpa_config_remove_cred(struct wpa_config * config,int id)3957 int wpa_config_remove_cred(struct wpa_config *config, int id)
3958 {
3959 struct wpa_cred *cred, *prev = NULL;
3960
3961 cred = config->cred;
3962 while (cred) {
3963 if (id == cred->id)
3964 break;
3965 prev = cred;
3966 cred = cred->next;
3967 }
3968
3969 if (cred == NULL)
3970 return -1;
3971
3972 if (prev)
3973 prev->next = cred->next;
3974 else
3975 config->cred = cred->next;
3976
3977 wpa_config_free_cred(cred);
3978 return 0;
3979 }
3980
3981
3982 #ifndef CONFIG_NO_CONFIG_BLOBS
3983 /**
3984 * wpa_config_get_blob - Get a named configuration blob
3985 * @config: Configuration data from wpa_config_read()
3986 * @name: Name of the blob
3987 * Returns: Pointer to blob data or %NULL if not found
3988 */
wpa_config_get_blob(struct wpa_config * config,const char * name)3989 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3990 const char *name)
3991 {
3992 struct wpa_config_blob *blob = config->blobs;
3993
3994 while (blob) {
3995 if (os_strcmp(blob->name, name) == 0)
3996 return blob;
3997 blob = blob->next;
3998 }
3999 return NULL;
4000 }
4001
4002
4003 /**
4004 * wpa_config_set_blob - Set or add a named configuration blob
4005 * @config: Configuration data from wpa_config_read()
4006 * @blob: New value for the blob
4007 *
4008 * Adds a new configuration blob or replaces the current value of an existing
4009 * blob.
4010 */
wpa_config_set_blob(struct wpa_config * config,struct wpa_config_blob * blob)4011 void wpa_config_set_blob(struct wpa_config *config,
4012 struct wpa_config_blob *blob)
4013 {
4014 wpa_config_remove_blob(config, blob->name);
4015 blob->next = config->blobs;
4016 config->blobs = blob;
4017 }
4018
4019
4020 /**
4021 * wpa_config_free_blob - Free blob data
4022 * @blob: Pointer to blob to be freed
4023 */
wpa_config_free_blob(struct wpa_config_blob * blob)4024 void wpa_config_free_blob(struct wpa_config_blob *blob)
4025 {
4026 if (blob) {
4027 os_free(blob->name);
4028 bin_clear_free(blob->data, blob->len);
4029 os_free(blob);
4030 }
4031 }
4032
4033
4034 /**
4035 * wpa_config_remove_blob - Remove a named configuration blob
4036 * @config: Configuration data from wpa_config_read()
4037 * @name: Name of the blob to remove
4038 * Returns: 0 if blob was removed or -1 if blob was not found
4039 */
wpa_config_remove_blob(struct wpa_config * config,const char * name)4040 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
4041 {
4042 struct wpa_config_blob *pos = config->blobs, *prev = NULL;
4043
4044 while (pos) {
4045 if (os_strcmp(pos->name, name) == 0) {
4046 if (prev)
4047 prev->next = pos->next;
4048 else
4049 config->blobs = pos->next;
4050 wpa_config_free_blob(pos);
4051 return 0;
4052 }
4053 prev = pos;
4054 pos = pos->next;
4055 }
4056
4057 return -1;
4058 }
4059 #endif /* CONFIG_NO_CONFIG_BLOBS */
4060
4061
4062 /**
4063 * wpa_config_alloc_empty - Allocate an empty configuration
4064 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
4065 * socket
4066 * @driver_param: Driver parameters
4067 * Returns: Pointer to allocated configuration data or %NULL on failure
4068 */
wpa_config_alloc_empty(const char * ctrl_interface,const char * driver_param)4069 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
4070 const char *driver_param)
4071 {
4072 struct wpa_config *config;
4073 const int aCWmin = 4, aCWmax = 10;
4074 const struct hostapd_wmm_ac_params ac_bk =
4075 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
4076 const struct hostapd_wmm_ac_params ac_be =
4077 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
4078 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
4079 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
4080 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
4081 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
4082
4083 config = os_zalloc(sizeof(*config));
4084 if (config == NULL)
4085 return NULL;
4086 config->eapol_version = DEFAULT_EAPOL_VERSION;
4087 config->ap_scan = DEFAULT_AP_SCAN;
4088 config->user_mpm = DEFAULT_USER_MPM;
4089 config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
4090 config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
4091 config->dot11RSNASAERetransPeriod =
4092 DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
4093 config->fast_reauth = DEFAULT_FAST_REAUTH;
4094 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
4095 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
4096 config->p2p_go_freq_change_policy = DEFAULT_P2P_GO_FREQ_MOVE;
4097 config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
4098 config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
4099 config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
4100 config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
4101 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
4102 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
4103 config->max_num_sta = DEFAULT_MAX_NUM_STA;
4104 config->ap_isolate = DEFAULT_AP_ISOLATE;
4105 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
4106 config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
4107 config->wmm_ac_params[0] = ac_be;
4108 config->wmm_ac_params[1] = ac_bk;
4109 config->wmm_ac_params[2] = ac_vi;
4110 config->wmm_ac_params[3] = ac_vo;
4111 config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
4112 config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4113 config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
4114 config->cert_in_cb = DEFAULT_CERT_IN_CB;
4115 config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
4116
4117 #ifdef CONFIG_MBO
4118 config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
4119 config->disassoc_imminent_rssi_threshold =
4120 DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD;
4121 config->oce = DEFAULT_OCE_SUPPORT;
4122 #endif /* CONFIG_MBO */
4123
4124 if (ctrl_interface)
4125 config->ctrl_interface = os_strdup(ctrl_interface);
4126 if (driver_param)
4127 config->driver_param = os_strdup(driver_param);
4128 config->gas_rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4129
4130 return config;
4131 }
4132
4133
4134 #ifndef CONFIG_NO_STDOUT_DEBUG
4135 /**
4136 * wpa_config_debug_dump_networks - Debug dump of configured networks
4137 * @config: Configuration data from wpa_config_read()
4138 */
wpa_config_debug_dump_networks(struct wpa_config * config)4139 void wpa_config_debug_dump_networks(struct wpa_config *config)
4140 {
4141 int prio;
4142 struct wpa_ssid *ssid;
4143
4144 for (prio = 0; prio < config->num_prio; prio++) {
4145 ssid = config->pssid[prio];
4146 wpa_printf(MSG_DEBUG, "Priority group %d",
4147 ssid->priority);
4148 while (ssid) {
4149 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'",
4150 ssid->id,
4151 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
4152 ssid = ssid->pnext;
4153 }
4154 }
4155 }
4156 #endif /* CONFIG_NO_STDOUT_DEBUG */
4157
4158
4159 struct global_parse_data {
4160 char *name;
4161 int (*parser)(const struct global_parse_data *data,
4162 struct wpa_config *config, int line, const char *value);
4163 int (*get)(const char *name, struct wpa_config *config, long offset,
4164 char *buf, size_t buflen, int pretty_print);
4165 void *param1, *param2, *param3;
4166 unsigned int changed_flag;
4167 };
4168
4169
wpa_global_config_parse_int(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4170 static int wpa_global_config_parse_int(const struct global_parse_data *data,
4171 struct wpa_config *config, int line,
4172 const char *pos)
4173 {
4174 int val, *dst;
4175 char *end;
4176
4177 dst = (int *) (((u8 *) config) + (long) data->param1);
4178 val = strtol(pos, &end, 0);
4179 if (*end) {
4180 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
4181 line, pos);
4182 return -1;
4183 }
4184 *dst = val;
4185
4186 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
4187
4188 if (data->param2 && *dst < (long) data->param2) {
4189 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
4190 "min_value=%ld)", line, data->name, *dst,
4191 (long) data->param2);
4192 *dst = (long) data->param2;
4193 return -1;
4194 }
4195
4196 if (data->param3 && *dst > (long) data->param3) {
4197 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
4198 "max_value=%ld)", line, data->name, *dst,
4199 (long) data->param3);
4200 *dst = (long) data->param3;
4201 return -1;
4202 }
4203
4204 return 0;
4205 }
4206
4207
wpa_global_config_parse_str(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4208 static int wpa_global_config_parse_str(const struct global_parse_data *data,
4209 struct wpa_config *config, int line,
4210 const char *pos)
4211 {
4212 size_t len;
4213 char **dst, *tmp;
4214
4215 len = os_strlen(pos);
4216 if (data->param2 && len < (size_t) data->param2) {
4217 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
4218 "min_len=%ld)", line, data->name,
4219 (unsigned long) len, (long) data->param2);
4220 return -1;
4221 }
4222
4223 if (data->param3 && len > (size_t) data->param3) {
4224 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
4225 "max_len=%ld)", line, data->name,
4226 (unsigned long) len, (long) data->param3);
4227 return -1;
4228 }
4229
4230 if (has_newline(pos)) {
4231 wpa_printf(MSG_ERROR, "Line %d: invalid %s value with newline",
4232 line, data->name);
4233 return -1;
4234 }
4235
4236 tmp = os_strdup(pos);
4237 if (tmp == NULL)
4238 return -1;
4239
4240 dst = (char **) (((u8 *) config) + (long) data->param1);
4241 os_free(*dst);
4242 *dst = tmp;
4243 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
4244
4245 return 0;
4246 }
4247
4248
wpa_config_process_bgscan(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4249 static int wpa_config_process_bgscan(const struct global_parse_data *data,
4250 struct wpa_config *config, int line,
4251 const char *pos)
4252 {
4253 size_t len;
4254 char *tmp;
4255 int res;
4256
4257 tmp = wpa_config_parse_string(pos, &len);
4258 if (tmp == NULL) {
4259 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
4260 line, data->name);
4261 return -1;
4262 }
4263
4264 res = wpa_global_config_parse_str(data, config, line, tmp);
4265 os_free(tmp);
4266 return res;
4267 }
4268
4269
wpa_global_config_parse_bin(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4270 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
4271 struct wpa_config *config, int line,
4272 const char *pos)
4273 {
4274 struct wpabuf **dst, *tmp;
4275
4276 tmp = wpabuf_parse_bin(pos);
4277 if (!tmp)
4278 return -1;
4279
4280 dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
4281 wpabuf_free(*dst);
4282 *dst = tmp;
4283 wpa_printf(MSG_DEBUG, "%s", data->name);
4284
4285 return 0;
4286 }
4287
4288
wpa_config_process_freq_list(const struct global_parse_data * data,struct wpa_config * config,int line,const char * value)4289 static int wpa_config_process_freq_list(const struct global_parse_data *data,
4290 struct wpa_config *config, int line,
4291 const char *value)
4292 {
4293 int *freqs;
4294
4295 freqs = wpa_config_parse_int_array(value);
4296 if (freqs == NULL)
4297 return -1;
4298 if (freqs[0] == 0) {
4299 os_free(freqs);
4300 freqs = NULL;
4301 }
4302 os_free(config->freq_list);
4303 config->freq_list = freqs;
4304 return 0;
4305 }
4306
4307
4308 #ifdef CONFIG_P2P
wpa_global_config_parse_ipv4(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4309 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
4310 struct wpa_config *config, int line,
4311 const char *pos)
4312 {
4313 u32 *dst;
4314 struct hostapd_ip_addr addr;
4315
4316 if (hostapd_parse_ip_addr(pos, &addr) < 0)
4317 return -1;
4318 if (addr.af != AF_INET)
4319 return -1;
4320
4321 dst = (u32 *) (((u8 *) config) + (long) data->param1);
4322 os_memcpy(dst, &addr.u.v4.s_addr, 4);
4323 wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
4324 WPA_GET_BE32((u8 *) dst));
4325
4326 return 0;
4327 }
4328 #endif /* CONFIG_P2P */
4329
4330
wpa_config_process_country(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4331 static int wpa_config_process_country(const struct global_parse_data *data,
4332 struct wpa_config *config, int line,
4333 const char *pos)
4334 {
4335 if (!pos[0] || !pos[1]) {
4336 wpa_printf(MSG_DEBUG, "Invalid country set");
4337 return -1;
4338 }
4339 config->country[0] = pos[0];
4340 config->country[1] = pos[1];
4341 wpa_printf(MSG_DEBUG, "country='%c%c'",
4342 config->country[0], config->country[1]);
4343 return 0;
4344 }
4345
4346
wpa_config_process_load_dynamic_eap(const struct global_parse_data * data,struct wpa_config * config,int line,const char * so)4347 static int wpa_config_process_load_dynamic_eap(
4348 const struct global_parse_data *data, struct wpa_config *config,
4349 int line, const char *so)
4350 {
4351 int ret;
4352 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
4353 ret = eap_peer_method_load(so);
4354 if (ret == -2) {
4355 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
4356 "reloading.");
4357 } else if (ret) {
4358 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
4359 "method '%s'.", line, so);
4360 return -1;
4361 }
4362
4363 return 0;
4364 }
4365
4366
4367 #ifdef CONFIG_WPS
4368
wpa_config_process_uuid(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4369 static int wpa_config_process_uuid(const struct global_parse_data *data,
4370 struct wpa_config *config, int line,
4371 const char *pos)
4372 {
4373 char buf[40];
4374 if (uuid_str2bin(pos, config->uuid)) {
4375 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
4376 return -1;
4377 }
4378 uuid_bin2str(config->uuid, buf, sizeof(buf));
4379 wpa_printf(MSG_DEBUG, "uuid=%s", buf);
4380 return 0;
4381 }
4382
4383
wpa_config_process_device_type(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4384 static int wpa_config_process_device_type(
4385 const struct global_parse_data *data,
4386 struct wpa_config *config, int line, const char *pos)
4387 {
4388 return wps_dev_type_str2bin(pos, config->device_type);
4389 }
4390
4391
wpa_config_process_os_version(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4392 static int wpa_config_process_os_version(const struct global_parse_data *data,
4393 struct wpa_config *config, int line,
4394 const char *pos)
4395 {
4396 if (hexstr2bin(pos, config->os_version, 4)) {
4397 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
4398 return -1;
4399 }
4400 wpa_printf(MSG_DEBUG, "os_version=%08x",
4401 WPA_GET_BE32(config->os_version));
4402 return 0;
4403 }
4404
4405
wpa_config_process_wps_vendor_ext_m1(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4406 static int wpa_config_process_wps_vendor_ext_m1(
4407 const struct global_parse_data *data,
4408 struct wpa_config *config, int line, const char *pos)
4409 {
4410 struct wpabuf *tmp;
4411 int len = os_strlen(pos) / 2;
4412 u8 *p;
4413
4414 if (!len) {
4415 wpa_printf(MSG_ERROR, "Line %d: "
4416 "invalid wps_vendor_ext_m1", line);
4417 return -1;
4418 }
4419
4420 tmp = wpabuf_alloc(len);
4421 if (tmp) {
4422 p = wpabuf_put(tmp, len);
4423
4424 if (hexstr2bin(pos, p, len)) {
4425 wpa_printf(MSG_ERROR, "Line %d: "
4426 "invalid wps_vendor_ext_m1", line);
4427 wpabuf_free(tmp);
4428 return -1;
4429 }
4430
4431 wpabuf_free(config->wps_vendor_ext_m1);
4432 config->wps_vendor_ext_m1 = tmp;
4433 } else {
4434 wpa_printf(MSG_ERROR, "Can not allocate "
4435 "memory for wps_vendor_ext_m1");
4436 return -1;
4437 }
4438
4439 return 0;
4440 }
4441
4442 #endif /* CONFIG_WPS */
4443
4444 #ifdef CONFIG_P2P
wpa_config_process_sec_device_type(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4445 static int wpa_config_process_sec_device_type(
4446 const struct global_parse_data *data,
4447 struct wpa_config *config, int line, const char *pos)
4448 {
4449 int idx;
4450
4451 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
4452 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
4453 "items", line);
4454 return -1;
4455 }
4456
4457 idx = config->num_sec_device_types;
4458
4459 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
4460 return -1;
4461
4462 config->num_sec_device_types++;
4463 return 0;
4464 }
4465
4466
wpa_config_process_p2p_pref_chan(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4467 static int wpa_config_process_p2p_pref_chan(
4468 const struct global_parse_data *data,
4469 struct wpa_config *config, int line, const char *pos)
4470 {
4471 struct p2p_channel *pref = NULL, *n;
4472 unsigned int num = 0;
4473 const char *pos2;
4474 u8 op_class, chan;
4475
4476 /* format: class:chan,class:chan,... */
4477
4478 while (*pos) {
4479 op_class = atoi(pos);
4480 pos2 = os_strchr(pos, ':');
4481 if (pos2 == NULL)
4482 goto fail;
4483 pos2++;
4484 chan = atoi(pos2);
4485
4486 n = os_realloc_array(pref, num + 1,
4487 sizeof(struct p2p_channel));
4488 if (n == NULL)
4489 goto fail;
4490 pref = n;
4491 pref[num].op_class = op_class;
4492 pref[num].chan = chan;
4493 num++;
4494
4495 pos = os_strchr(pos2, ',');
4496 if (pos == NULL)
4497 break;
4498 pos++;
4499 }
4500
4501 os_free(config->p2p_pref_chan);
4502 config->p2p_pref_chan = pref;
4503 config->num_p2p_pref_chan = num;
4504 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
4505 (u8 *) config->p2p_pref_chan,
4506 config->num_p2p_pref_chan * sizeof(struct p2p_channel));
4507
4508 return 0;
4509
4510 fail:
4511 os_free(pref);
4512 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
4513 return -1;
4514 }
4515
4516
wpa_config_process_p2p_no_go_freq(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4517 static int wpa_config_process_p2p_no_go_freq(
4518 const struct global_parse_data *data,
4519 struct wpa_config *config, int line, const char *pos)
4520 {
4521 int ret;
4522
4523 ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
4524 if (ret < 0) {
4525 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
4526 return -1;
4527 }
4528
4529 wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
4530 config->p2p_no_go_freq.num);
4531
4532 return 0;
4533 }
4534
wpa_config_process_p2p_device_persistent_mac_addr(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4535 static int wpa_config_process_p2p_device_persistent_mac_addr(
4536 const struct global_parse_data *data,
4537 struct wpa_config *config, int line, const char *pos)
4538 {
4539 if (hwaddr_aton2(pos, config->p2p_device_persistent_mac_addr) < 0) {
4540 wpa_printf(MSG_ERROR,
4541 "Line %d: Invalid p2p_device_persistent_mac_addr '%s'",
4542 line, pos);
4543 return -1;
4544 }
4545
4546 return 0;
4547 }
4548
4549 #endif /* CONFIG_P2P */
4550
4551
wpa_config_process_hessid(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4552 static int wpa_config_process_hessid(
4553 const struct global_parse_data *data,
4554 struct wpa_config *config, int line, const char *pos)
4555 {
4556 if (hwaddr_aton2(pos, config->hessid) < 0) {
4557 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
4558 line, pos);
4559 return -1;
4560 }
4561
4562 return 0;
4563 }
4564
4565
wpa_config_process_sae_groups(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4566 static int wpa_config_process_sae_groups(
4567 const struct global_parse_data *data,
4568 struct wpa_config *config, int line, const char *pos)
4569 {
4570 int *groups = wpa_config_parse_int_array(pos);
4571 if (groups == NULL) {
4572 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
4573 line, pos);
4574 return -1;
4575 }
4576
4577 os_free(config->sae_groups);
4578 config->sae_groups = groups;
4579
4580 return 0;
4581 }
4582
4583
wpa_config_process_ap_vendor_elements(const struct global_parse_data * data,struct wpa_config * config,int line,const char * pos)4584 static int wpa_config_process_ap_vendor_elements(
4585 const struct global_parse_data *data,
4586 struct wpa_config *config, int line, const char *pos)
4587 {
4588 struct wpabuf *tmp;
4589 int len = os_strlen(pos) / 2;
4590 u8 *p;
4591
4592 if (!len) {
4593 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4594 line);
4595 return -1;
4596 }
4597
4598 tmp = wpabuf_alloc(len);
4599 if (tmp) {
4600 p = wpabuf_put(tmp, len);
4601
4602 if (hexstr2bin(pos, p, len)) {
4603 wpa_printf(MSG_ERROR, "Line %d: invalid "
4604 "ap_vendor_elements", line);
4605 wpabuf_free(tmp);
4606 return -1;
4607 }
4608
4609 wpabuf_free(config->ap_vendor_elements);
4610 config->ap_vendor_elements = tmp;
4611 } else {
4612 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4613 "ap_vendor_elements");
4614 return -1;
4615 }
4616
4617 return 0;
4618 }
4619
4620
4621 #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)4622 static int wpa_config_process_no_ctrl_interface(
4623 const struct global_parse_data *data,
4624 struct wpa_config *config, int line, const char *pos)
4625 {
4626 wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4627 os_free(config->ctrl_interface);
4628 config->ctrl_interface = NULL;
4629 return 0;
4630 }
4631 #endif /* CONFIG_CTRL_IFACE */
4632
4633
wpa_config_get_int(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4634 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4635 long offset, char *buf, size_t buflen,
4636 int pretty_print)
4637 {
4638 int *val = (int *) (((u8 *) config) + (long) offset);
4639
4640 if (pretty_print)
4641 return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4642 return os_snprintf(buf, buflen, "%d", *val);
4643 }
4644
4645
wpa_config_get_str(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4646 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4647 long offset, char *buf, size_t buflen,
4648 int pretty_print)
4649 {
4650 char **val = (char **) (((u8 *) config) + (long) offset);
4651 int res;
4652
4653 if (pretty_print)
4654 res = os_snprintf(buf, buflen, "%s=%s\n", name,
4655 *val ? *val : "null");
4656 else if (!*val)
4657 return -1;
4658 else
4659 res = os_snprintf(buf, buflen, "%s", *val);
4660 if (os_snprintf_error(buflen, res))
4661 res = -1;
4662
4663 return res;
4664 }
4665
4666
4667 #ifdef CONFIG_P2P
wpa_config_get_ipv4(const char * name,struct wpa_config * config,long offset,char * buf,size_t buflen,int pretty_print)4668 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4669 long offset, char *buf, size_t buflen,
4670 int pretty_print)
4671 {
4672 void *val = ((u8 *) config) + (long) offset;
4673 int res;
4674 char addr[INET_ADDRSTRLEN];
4675
4676 if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4677 return -1;
4678
4679 if (pretty_print)
4680 res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4681 else
4682 res = os_snprintf(buf, buflen, "%s", addr);
4683
4684 if (os_snprintf_error(buflen, res))
4685 res = -1;
4686
4687 return res;
4688 }
4689 #endif /* CONFIG_P2P */
4690
4691
4692 #ifdef OFFSET
4693 #undef OFFSET
4694 #endif /* OFFSET */
4695 /* OFFSET: Get offset of a variable within the wpa_config structure */
4696 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4697
4698 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4699 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4700 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4701 #define INT(f) _INT(f), NULL, NULL
4702 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4703 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4704 #define STR(f) _STR(f), NULL, NULL
4705 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4706 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4707 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4, \
4708 OFFSET(f), NULL, NULL
4709
4710 static const struct global_parse_data global_fields[] = {
4711 #ifdef CONFIG_CTRL_IFACE
4712 { STR(ctrl_interface), 0 },
4713 { FUNC_NO_VAR(no_ctrl_interface), 0 },
4714 { STR(ctrl_interface_group), 0 } /* deprecated */,
4715 #endif /* CONFIG_CTRL_IFACE */
4716 #ifdef CONFIG_MACSEC
4717 { INT_RANGE(eapol_version, 1, 3), 0 },
4718 #else /* CONFIG_MACSEC */
4719 { INT_RANGE(eapol_version, 1, 2), 0 },
4720 #endif /* CONFIG_MACSEC */
4721 { INT(ap_scan), 0 },
4722 { FUNC(bgscan), 0 },
4723 #ifdef CONFIG_MESH
4724 { INT(user_mpm), 0 },
4725 { INT_RANGE(max_peer_links, 0, 255), 0 },
4726 { INT(mesh_max_inactivity), 0 },
4727 { INT(dot11RSNASAERetransPeriod), 0 },
4728 #endif /* CONFIG_MESH */
4729 { INT(disable_scan_offload), 0 },
4730 { INT(fast_reauth), 0 },
4731 { STR(opensc_engine_path), 0 },
4732 { STR(pkcs11_engine_path), 0 },
4733 { STR(pkcs11_module_path), 0 },
4734 { STR(openssl_ciphers), 0 },
4735 { STR(pcsc_reader), 0 },
4736 { STR(pcsc_pin), 0 },
4737 { INT(external_sim), 0 },
4738 { STR(driver_param), 0 },
4739 { INT(dot11RSNAConfigPMKLifetime), 0 },
4740 { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4741 { INT(dot11RSNAConfigSATimeout), 0 },
4742 #ifndef CONFIG_NO_CONFIG_WRITE
4743 { INT(update_config), 0 },
4744 #endif /* CONFIG_NO_CONFIG_WRITE */
4745 { FUNC_NO_VAR(load_dynamic_eap), 0 },
4746 #ifdef CONFIG_WPS
4747 { FUNC(uuid), CFG_CHANGED_UUID },
4748 { INT_RANGE(auto_uuid, 0, 1), 0 },
4749 { STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4750 CFG_CHANGED_DEVICE_NAME },
4751 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4752 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4753 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4754 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4755 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4756 { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4757 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4758 { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4759 { INT_RANGE(wps_cred_add_sae, 0, 1), 0 },
4760 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4761 #endif /* CONFIG_WPS */
4762 #ifdef CONFIG_P2P
4763 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4764 { INT(p2p_listen_reg_class), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4765 { INT(p2p_listen_channel), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4766 { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4767 { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4768 { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4769 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4770 { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4771 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4772 { INT(p2p_group_idle), 0 },
4773 { INT_RANGE(p2p_go_freq_change_policy, 0, P2P_GO_FREQ_MOVE_MAX), 0 },
4774 { INT_RANGE(p2p_passphrase_len, 8, 63),
4775 CFG_CHANGED_P2P_PASSPHRASE_LEN },
4776 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4777 { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4778 { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4779 { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4780 { INT(p2p_go_ht40), 0 },
4781 { INT(p2p_go_vht), 0 },
4782 { INT(p2p_go_he), 0 },
4783 { INT(p2p_disabled), 0 },
4784 { INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4785 { INT(p2p_no_group_iface), 0 },
4786 { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4787 { IPV4(ip_addr_go), 0 },
4788 { IPV4(ip_addr_mask), 0 },
4789 { IPV4(ip_addr_start), 0 },
4790 { IPV4(ip_addr_end), 0 },
4791 { INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4792 { INT(p2p_device_random_mac_addr), 0 },
4793 { FUNC(p2p_device_persistent_mac_addr), 0 },
4794 { INT(p2p_interface_random_mac_addr), 0 },
4795 #endif /* CONFIG_P2P */
4796 { FUNC(country), CFG_CHANGED_COUNTRY },
4797 { INT(bss_max_count), 0 },
4798 { INT(bss_expiration_age), 0 },
4799 { INT(bss_expiration_scan_count), 0 },
4800 { INT_RANGE(filter_ssids, 0, 1), 0 },
4801 { INT_RANGE(filter_rssi, -100, 0), 0 },
4802 { INT(max_num_sta), 0 },
4803 { INT_RANGE(ap_isolate, 0, 1), 0 },
4804 { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4805 #ifdef CONFIG_HS20
4806 { INT_RANGE(hs20, 0, 1), 0 },
4807 #endif /* CONFIG_HS20 */
4808 { INT_RANGE(interworking, 0, 1), 0 },
4809 { FUNC(hessid), 0 },
4810 { INT_RANGE(access_network_type, 0, 15), 0 },
4811 { INT_RANGE(go_interworking, 0, 1), 0 },
4812 { INT_RANGE(go_access_network_type, 0, 15), 0 },
4813 { INT_RANGE(go_internet, 0, 1), 0 },
4814 { INT_RANGE(go_venue_group, 0, 255), 0 },
4815 { INT_RANGE(go_venue_type, 0, 255), 0 },
4816 { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4817 { STR(autoscan), 0 },
4818 { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4819 CFG_CHANGED_NFC_PASSWORD_TOKEN },
4820 { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4821 { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4822 { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4823 { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4824 { INT(p2p_go_max_inactivity), 0 },
4825 { INT_RANGE(auto_interworking, 0, 1), 0 },
4826 { INT(okc), 0 },
4827 { INT(pmf), 0 },
4828 { FUNC(sae_groups), 0 },
4829 { INT(dtim_period), 0 },
4830 { INT(beacon_int), 0 },
4831 { FUNC(ap_vendor_elements), 0 },
4832 { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4833 { FUNC(freq_list), 0 },
4834 { INT(scan_cur_freq), 0 },
4835 { INT(sched_scan_interval), 0 },
4836 { INT(sched_scan_start_delay), 0 },
4837 { INT(tdls_external_control), 0},
4838 { STR(osu_dir), 0 },
4839 { STR(wowlan_triggers), CFG_CHANGED_WOWLAN_TRIGGERS },
4840 { INT(p2p_search_delay), 0},
4841 { INT(mac_addr), 0 },
4842 { INT(rand_addr_lifetime), 0 },
4843 { INT(preassoc_mac_addr), 0 },
4844 { INT(key_mgmt_offload), 0},
4845 { INT(passive_scan), 0 },
4846 { INT(reassoc_same_bss_optim), 0 },
4847 { INT(wps_priority), 0},
4848 #ifdef CONFIG_FST
4849 { STR_RANGE(fst_group_id, 1, FST_MAX_GROUP_ID_LEN), 0 },
4850 { INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
4851 { INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
4852 #endif /* CONFIG_FST */
4853 { INT_RANGE(cert_in_cb, 0, 1), 0 },
4854 { INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
4855 { STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
4856 #ifdef CONFIG_MBO
4857 { STR(non_pref_chan), 0 },
4858 { INT_RANGE(mbo_cell_capa, MBO_CELL_CAPA_AVAILABLE,
4859 MBO_CELL_CAPA_NOT_SUPPORTED), 0 },
4860 { INT_RANGE(disassoc_imminent_rssi_threshold, -120, 0), 0 },
4861 { INT_RANGE(oce, 0, 3), 0 },
4862 #endif /* CONFIG_MBO */
4863 { INT(gas_address3), 0 },
4864 { INT_RANGE(ftm_responder, 0, 1), 0 },
4865 { INT_RANGE(ftm_initiator, 0, 1), 0 },
4866 { INT(gas_rand_addr_lifetime), 0 },
4867 { INT_RANGE(gas_rand_mac_addr, 0, 2), 0 },
4868 { INT_RANGE(dpp_config_processing, 0, 2), 0 },
4869 { INT_RANGE(coloc_intf_reporting, 0, 1), 0 },
4870 { INT_RANGE(bss_no_flush_when_down, 0, 1), 0 },
4871 };
4872
4873 #undef FUNC
4874 #undef _INT
4875 #undef INT
4876 #undef INT_RANGE
4877 #undef _STR
4878 #undef STR
4879 #undef STR_RANGE
4880 #undef BIN
4881 #undef IPV4
4882 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4883
4884
wpa_config_dump_values(struct wpa_config * config,char * buf,size_t buflen)4885 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4886 {
4887 int result = 0;
4888 size_t i;
4889
4890 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4891 const struct global_parse_data *field = &global_fields[i];
4892 int tmp;
4893
4894 if (!field->get)
4895 continue;
4896
4897 tmp = field->get(field->name, config, (long) field->param1,
4898 buf, buflen, 1);
4899 if (tmp < 0)
4900 return -1;
4901 buf += tmp;
4902 buflen -= tmp;
4903 result += tmp;
4904 }
4905 return result;
4906 }
4907
4908
wpa_config_get_value(const char * name,struct wpa_config * config,char * buf,size_t buflen)4909 int wpa_config_get_value(const char *name, struct wpa_config *config,
4910 char *buf, size_t buflen)
4911 {
4912 size_t i;
4913
4914 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4915 const struct global_parse_data *field = &global_fields[i];
4916
4917 if (os_strcmp(name, field->name) != 0)
4918 continue;
4919 if (!field->get)
4920 break;
4921 return field->get(name, config, (long) field->param1,
4922 buf, buflen, 0);
4923 }
4924
4925 return -1;
4926 }
4927
4928
wpa_config_get_num_global_field_names(void)4929 int wpa_config_get_num_global_field_names(void)
4930 {
4931 return NUM_GLOBAL_FIELDS;
4932 }
4933
4934
wpa_config_get_global_field_name(unsigned int i,int * no_var)4935 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var)
4936 {
4937 if (i >= NUM_GLOBAL_FIELDS)
4938 return NULL;
4939
4940 if (no_var)
4941 *no_var = !global_fields[i].param1;
4942 return global_fields[i].name;
4943 }
4944
4945
wpa_config_process_global(struct wpa_config * config,char * pos,int line)4946 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4947 {
4948 size_t i;
4949 int ret = 0;
4950
4951 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4952 const struct global_parse_data *field = &global_fields[i];
4953 size_t flen = os_strlen(field->name);
4954 if (os_strncmp(pos, field->name, flen) != 0 ||
4955 pos[flen] != '=')
4956 continue;
4957
4958 if (field->parser(field, config, line, pos + flen + 1)) {
4959 wpa_printf(MSG_ERROR, "Line %d: failed to "
4960 "parse '%s'.", line, pos);
4961 ret = -1;
4962 }
4963 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4964 config->wps_nfc_pw_from_config = 1;
4965 config->changed_parameters |= field->changed_flag;
4966 break;
4967 }
4968 if (i == NUM_GLOBAL_FIELDS) {
4969 #ifdef CONFIG_AP
4970 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4971 char *tmp = os_strchr(pos, '=');
4972 if (tmp == NULL) {
4973 if (line < 0)
4974 return -1;
4975 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4976 "'%s'", line, pos);
4977 return -1;
4978 }
4979 *tmp++ = '\0';
4980 if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4981 tmp)) {
4982 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4983 "AC item", line);
4984 return -1;
4985 }
4986 }
4987 #endif /* CONFIG_AP */
4988 if (line < 0)
4989 return -1;
4990 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4991 line, pos);
4992 ret = -1;
4993 }
4994
4995 return ret;
4996 }
4997