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