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Commit | Line | Data |
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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant / Configuration parser and common functions | |
56586197 | 3 | * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi> |
6fc6879b | 4 | * |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
6fc6879b JM |
7 | */ |
8 | ||
9 | #include "includes.h" | |
10 | ||
11 | #include "common.h" | |
121adf9c | 12 | #include "utils/uuid.h" |
03da66bd | 13 | #include "crypto/sha1.h" |
3acb5005 | 14 | #include "rsn_supp/wpa.h" |
6fc6879b JM |
15 | #include "eap_peer/eap.h" |
16 | #include "config.h" | |
17 | ||
18 | ||
19 | #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE) | |
20 | #define NO_CONFIG_WRITE | |
21 | #endif | |
22 | ||
23 | /* | |
24 | * Structure for network configuration parsing. This data is used to implement | |
25 | * a generic parser for each network block variable. The table of configuration | |
26 | * variables is defined below in this file (ssid_fields[]). | |
27 | */ | |
28 | struct parse_data { | |
29 | /* Configuration variable name */ | |
30 | char *name; | |
31 | ||
32 | /* Parser function for this variable */ | |
33 | int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid, | |
34 | int line, const char *value); | |
35 | ||
36 | #ifndef NO_CONFIG_WRITE | |
37 | /* Writer function (i.e., to get the variable in text format from | |
38 | * internal presentation). */ | |
39 | char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid); | |
40 | #endif /* NO_CONFIG_WRITE */ | |
41 | ||
42 | /* Variable specific parameters for the parser. */ | |
43 | void *param1, *param2, *param3, *param4; | |
44 | ||
45 | /* 0 = this variable can be included in debug output and ctrl_iface | |
46 | * 1 = this variable contains key/private data and it must not be | |
47 | * included in debug output unless explicitly requested. In | |
48 | * addition, this variable will not be readable through the | |
49 | * ctrl_iface. | |
50 | */ | |
51 | int key_data; | |
52 | }; | |
53 | ||
54 | ||
55 | static char * wpa_config_parse_string(const char *value, size_t *len) | |
56 | { | |
57 | if (*value == '"') { | |
e237a6b0 JM |
58 | const char *pos; |
59 | char *str; | |
6fc6879b JM |
60 | value++; |
61 | pos = os_strrchr(value, '"'); | |
62 | if (pos == NULL || pos[1] != '\0') | |
63 | return NULL; | |
e237a6b0 JM |
64 | *len = pos - value; |
65 | str = os_malloc(*len + 1); | |
66 | if (str == NULL) | |
67 | return NULL; | |
68 | os_memcpy(str, value, *len); | |
69 | str[*len] = '\0'; | |
70 | return str; | |
6fc6879b JM |
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 | ||
b56c0546 JM |
98 | if (os_strcmp(value, "NULL") == 0) { |
99 | wpa_printf(MSG_DEBUG, "Unset configuration string '%s'", | |
100 | data->name); | |
101 | tmp = NULL; | |
102 | res_len = 0; | |
103 | goto set; | |
104 | } | |
105 | ||
6fc6879b JM |
106 | tmp = wpa_config_parse_string(value, &res_len); |
107 | if (tmp == NULL) { | |
108 | wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.", | |
109 | line, data->name, | |
110 | data->key_data ? "[KEY DATA REMOVED]" : value); | |
111 | return -1; | |
112 | } | |
113 | ||
114 | if (data->key_data) { | |
115 | wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name, | |
116 | (u8 *) tmp, res_len); | |
117 | } else { | |
118 | wpa_hexdump_ascii(MSG_MSGDUMP, data->name, | |
119 | (u8 *) tmp, res_len); | |
120 | } | |
121 | ||
122 | if (data->param3 && res_len < (size_t) data->param3) { | |
123 | wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu " | |
124 | "min_len=%ld)", line, data->name, | |
125 | (unsigned long) res_len, (long) data->param3); | |
126 | os_free(tmp); | |
127 | return -1; | |
128 | } | |
129 | ||
130 | if (data->param4 && res_len > (size_t) data->param4) { | |
131 | wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu " | |
132 | "max_len=%ld)", line, data->name, | |
133 | (unsigned long) res_len, (long) data->param4); | |
134 | os_free(tmp); | |
135 | return -1; | |
136 | } | |
137 | ||
b56c0546 | 138 | set: |
6fc6879b JM |
139 | dst = (char **) (((u8 *) ssid) + (long) data->param1); |
140 | dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2); | |
141 | os_free(*dst); | |
142 | *dst = tmp; | |
143 | if (data->param2) | |
144 | *dst_len = res_len; | |
145 | ||
146 | return 0; | |
147 | } | |
148 | ||
149 | ||
150 | #ifndef NO_CONFIG_WRITE | |
151 | static int is_hex(const u8 *data, size_t len) | |
152 | { | |
153 | size_t i; | |
154 | ||
155 | for (i = 0; i < len; i++) { | |
156 | if (data[i] < 32 || data[i] >= 127) | |
157 | return 1; | |
158 | } | |
159 | return 0; | |
160 | } | |
161 | ||
162 | ||
163 | static char * wpa_config_write_string_ascii(const u8 *value, size_t len) | |
164 | { | |
165 | char *buf; | |
166 | ||
167 | buf = os_malloc(len + 3); | |
168 | if (buf == NULL) | |
169 | return NULL; | |
170 | buf[0] = '"'; | |
171 | os_memcpy(buf + 1, value, len); | |
172 | buf[len + 1] = '"'; | |
173 | buf[len + 2] = '\0'; | |
174 | ||
175 | return buf; | |
176 | } | |
177 | ||
178 | ||
179 | static char * wpa_config_write_string_hex(const u8 *value, size_t len) | |
180 | { | |
181 | char *buf; | |
182 | ||
183 | buf = os_zalloc(2 * len + 1); | |
184 | if (buf == NULL) | |
185 | return NULL; | |
186 | wpa_snprintf_hex(buf, 2 * len + 1, value, len); | |
187 | ||
188 | return buf; | |
189 | } | |
190 | ||
191 | ||
192 | static char * wpa_config_write_string(const u8 *value, size_t len) | |
193 | { | |
194 | if (value == NULL) | |
195 | return NULL; | |
196 | ||
197 | if (is_hex(value, len)) | |
198 | return wpa_config_write_string_hex(value, len); | |
199 | else | |
200 | return wpa_config_write_string_ascii(value, len); | |
201 | } | |
202 | ||
203 | ||
204 | static char * wpa_config_write_str(const struct parse_data *data, | |
205 | struct wpa_ssid *ssid) | |
206 | { | |
207 | size_t len; | |
208 | char **src; | |
209 | ||
210 | src = (char **) (((u8 *) ssid) + (long) data->param1); | |
211 | if (*src == NULL) | |
212 | return NULL; | |
213 | ||
214 | if (data->param2) | |
215 | len = *((size_t *) (((u8 *) ssid) + (long) data->param2)); | |
216 | else | |
217 | len = os_strlen(*src); | |
218 | ||
219 | return wpa_config_write_string((const u8 *) *src, len); | |
220 | } | |
221 | #endif /* NO_CONFIG_WRITE */ | |
222 | ||
223 | ||
224 | static int wpa_config_parse_int(const struct parse_data *data, | |
225 | struct wpa_ssid *ssid, | |
226 | int line, const char *value) | |
227 | { | |
228 | int *dst; | |
229 | ||
230 | dst = (int *) (((u8 *) ssid) + (long) data->param1); | |
231 | *dst = atoi(value); | |
232 | wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst); | |
233 | ||
234 | if (data->param3 && *dst < (long) data->param3) { | |
235 | wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d " | |
236 | "min_value=%ld)", line, data->name, *dst, | |
237 | (long) data->param3); | |
238 | *dst = (long) data->param3; | |
239 | return -1; | |
240 | } | |
241 | ||
242 | if (data->param4 && *dst > (long) data->param4) { | |
243 | wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d " | |
244 | "max_value=%ld)", line, data->name, *dst, | |
245 | (long) data->param4); | |
246 | *dst = (long) data->param4; | |
247 | return -1; | |
248 | } | |
249 | ||
250 | return 0; | |
251 | } | |
252 | ||
253 | ||
254 | #ifndef NO_CONFIG_WRITE | |
255 | static char * wpa_config_write_int(const struct parse_data *data, | |
256 | struct wpa_ssid *ssid) | |
257 | { | |
258 | int *src, res; | |
259 | char *value; | |
260 | ||
261 | src = (int *) (((u8 *) ssid) + (long) data->param1); | |
262 | ||
263 | value = os_malloc(20); | |
264 | if (value == NULL) | |
265 | return NULL; | |
266 | res = os_snprintf(value, 20, "%d", *src); | |
267 | if (res < 0 || res >= 20) { | |
268 | os_free(value); | |
269 | return NULL; | |
270 | } | |
271 | value[20 - 1] = '\0'; | |
272 | return value; | |
273 | } | |
274 | #endif /* NO_CONFIG_WRITE */ | |
275 | ||
276 | ||
277 | static int wpa_config_parse_bssid(const struct parse_data *data, | |
278 | struct wpa_ssid *ssid, int line, | |
279 | const char *value) | |
280 | { | |
c0a321c5 WJL |
281 | if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 || |
282 | os_strcmp(value, "any") == 0) { | |
283 | ssid->bssid_set = 0; | |
284 | wpa_printf(MSG_MSGDUMP, "BSSID any"); | |
285 | return 0; | |
286 | } | |
6fc6879b JM |
287 | if (hwaddr_aton(value, ssid->bssid)) { |
288 | wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.", | |
289 | line, value); | |
290 | return -1; | |
291 | } | |
292 | ssid->bssid_set = 1; | |
293 | wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN); | |
294 | return 0; | |
295 | } | |
296 | ||
297 | ||
298 | #ifndef NO_CONFIG_WRITE | |
299 | static char * wpa_config_write_bssid(const struct parse_data *data, | |
300 | struct wpa_ssid *ssid) | |
301 | { | |
302 | char *value; | |
303 | int res; | |
304 | ||
305 | if (!ssid->bssid_set) | |
306 | return NULL; | |
307 | ||
308 | value = os_malloc(20); | |
309 | if (value == NULL) | |
310 | return NULL; | |
311 | res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid)); | |
312 | if (res < 0 || res >= 20) { | |
313 | os_free(value); | |
314 | return NULL; | |
315 | } | |
316 | value[20 - 1] = '\0'; | |
317 | return value; | |
318 | } | |
319 | #endif /* NO_CONFIG_WRITE */ | |
320 | ||
321 | ||
322 | static int wpa_config_parse_psk(const struct parse_data *data, | |
323 | struct wpa_ssid *ssid, int line, | |
324 | const char *value) | |
325 | { | |
326 | if (*value == '"') { | |
327 | #ifndef CONFIG_NO_PBKDF2 | |
328 | const char *pos; | |
329 | size_t len; | |
330 | ||
331 | value++; | |
332 | pos = os_strrchr(value, '"'); | |
333 | if (pos) | |
334 | len = pos - value; | |
335 | else | |
336 | len = os_strlen(value); | |
337 | if (len < 8 || len > 63) { | |
338 | wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase " | |
339 | "length %lu (expected: 8..63) '%s'.", | |
340 | line, (unsigned long) len, value); | |
341 | return -1; | |
342 | } | |
343 | wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)", | |
344 | (u8 *) value, len); | |
345 | if (ssid->passphrase && os_strlen(ssid->passphrase) == len && | |
346 | os_memcmp(ssid->passphrase, value, len) == 0) | |
347 | return 0; | |
348 | ssid->psk_set = 0; | |
349 | os_free(ssid->passphrase); | |
350 | ssid->passphrase = os_malloc(len + 1); | |
351 | if (ssid->passphrase == NULL) | |
352 | return -1; | |
353 | os_memcpy(ssid->passphrase, value, len); | |
354 | ssid->passphrase[len] = '\0'; | |
355 | return 0; | |
356 | #else /* CONFIG_NO_PBKDF2 */ | |
357 | wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not " | |
358 | "supported.", line); | |
359 | return -1; | |
360 | #endif /* CONFIG_NO_PBKDF2 */ | |
361 | } | |
362 | ||
363 | if (hexstr2bin(value, ssid->psk, PMK_LEN) || | |
364 | value[PMK_LEN * 2] != '\0') { | |
365 | wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.", | |
366 | line, value); | |
367 | return -1; | |
368 | } | |
369 | ||
370 | os_free(ssid->passphrase); | |
371 | ssid->passphrase = NULL; | |
372 | ||
373 | ssid->psk_set = 1; | |
374 | wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN); | |
375 | return 0; | |
376 | } | |
377 | ||
378 | ||
379 | #ifndef NO_CONFIG_WRITE | |
380 | static char * wpa_config_write_psk(const struct parse_data *data, | |
381 | struct wpa_ssid *ssid) | |
382 | { | |
383 | if (ssid->passphrase) | |
384 | return wpa_config_write_string_ascii( | |
385 | (const u8 *) ssid->passphrase, | |
386 | os_strlen(ssid->passphrase)); | |
387 | ||
388 | if (ssid->psk_set) | |
389 | return wpa_config_write_string_hex(ssid->psk, PMK_LEN); | |
390 | ||
391 | return NULL; | |
392 | } | |
393 | #endif /* NO_CONFIG_WRITE */ | |
394 | ||
395 | ||
396 | static int wpa_config_parse_proto(const struct parse_data *data, | |
397 | struct wpa_ssid *ssid, int line, | |
398 | const char *value) | |
399 | { | |
400 | int val = 0, last, errors = 0; | |
401 | char *start, *end, *buf; | |
402 | ||
403 | buf = os_strdup(value); | |
404 | if (buf == NULL) | |
405 | return -1; | |
406 | start = buf; | |
407 | ||
408 | while (*start != '\0') { | |
409 | while (*start == ' ' || *start == '\t') | |
410 | start++; | |
411 | if (*start == '\0') | |
412 | break; | |
413 | end = start; | |
414 | while (*end != ' ' && *end != '\t' && *end != '\0') | |
415 | end++; | |
416 | last = *end == '\0'; | |
417 | *end = '\0'; | |
418 | if (os_strcmp(start, "WPA") == 0) | |
419 | val |= WPA_PROTO_WPA; | |
420 | else if (os_strcmp(start, "RSN") == 0 || | |
421 | os_strcmp(start, "WPA2") == 0) | |
422 | val |= WPA_PROTO_RSN; | |
423 | else { | |
424 | wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'", | |
425 | line, start); | |
426 | errors++; | |
427 | } | |
428 | ||
429 | if (last) | |
430 | break; | |
431 | start = end + 1; | |
432 | } | |
433 | os_free(buf); | |
434 | ||
435 | if (val == 0) { | |
436 | wpa_printf(MSG_ERROR, | |
437 | "Line %d: no proto values configured.", line); | |
438 | errors++; | |
439 | } | |
440 | ||
441 | wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val); | |
442 | ssid->proto = val; | |
443 | return errors ? -1 : 0; | |
444 | } | |
445 | ||
446 | ||
447 | #ifndef NO_CONFIG_WRITE | |
448 | static char * wpa_config_write_proto(const struct parse_data *data, | |
449 | struct wpa_ssid *ssid) | |
450 | { | |
451 | int first = 1, ret; | |
452 | char *buf, *pos, *end; | |
453 | ||
454 | pos = buf = os_zalloc(10); | |
455 | if (buf == NULL) | |
456 | return NULL; | |
457 | end = buf + 10; | |
458 | ||
459 | if (ssid->proto & WPA_PROTO_WPA) { | |
460 | ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " "); | |
461 | if (ret < 0 || ret >= end - pos) | |
462 | return buf; | |
463 | pos += ret; | |
464 | first = 0; | |
465 | } | |
466 | ||
467 | if (ssid->proto & WPA_PROTO_RSN) { | |
468 | ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " "); | |
469 | if (ret < 0 || ret >= end - pos) | |
470 | return buf; | |
471 | pos += ret; | |
472 | first = 0; | |
473 | } | |
474 | ||
475 | return buf; | |
476 | } | |
477 | #endif /* NO_CONFIG_WRITE */ | |
478 | ||
479 | ||
480 | static int wpa_config_parse_key_mgmt(const struct parse_data *data, | |
481 | struct wpa_ssid *ssid, int line, | |
482 | const char *value) | |
483 | { | |
484 | int val = 0, last, errors = 0; | |
485 | char *start, *end, *buf; | |
486 | ||
487 | buf = os_strdup(value); | |
488 | if (buf == NULL) | |
489 | return -1; | |
490 | start = buf; | |
491 | ||
492 | while (*start != '\0') { | |
493 | while (*start == ' ' || *start == '\t') | |
494 | start++; | |
495 | if (*start == '\0') | |
496 | break; | |
497 | end = start; | |
498 | while (*end != ' ' && *end != '\t' && *end != '\0') | |
499 | end++; | |
500 | last = *end == '\0'; | |
501 | *end = '\0'; | |
502 | if (os_strcmp(start, "WPA-PSK") == 0) | |
503 | val |= WPA_KEY_MGMT_PSK; | |
504 | else if (os_strcmp(start, "WPA-EAP") == 0) | |
505 | val |= WPA_KEY_MGMT_IEEE8021X; | |
506 | else if (os_strcmp(start, "IEEE8021X") == 0) | |
507 | val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA; | |
508 | else if (os_strcmp(start, "NONE") == 0) | |
509 | val |= WPA_KEY_MGMT_NONE; | |
510 | else if (os_strcmp(start, "WPA-NONE") == 0) | |
511 | val |= WPA_KEY_MGMT_WPA_NONE; | |
512 | #ifdef CONFIG_IEEE80211R | |
513 | else if (os_strcmp(start, "FT-PSK") == 0) | |
514 | val |= WPA_KEY_MGMT_FT_PSK; | |
515 | else if (os_strcmp(start, "FT-EAP") == 0) | |
516 | val |= WPA_KEY_MGMT_FT_IEEE8021X; | |
517 | #endif /* CONFIG_IEEE80211R */ | |
56586197 JM |
518 | #ifdef CONFIG_IEEE80211W |
519 | else if (os_strcmp(start, "WPA-PSK-SHA256") == 0) | |
520 | val |= WPA_KEY_MGMT_PSK_SHA256; | |
521 | else if (os_strcmp(start, "WPA-EAP-SHA256") == 0) | |
522 | val |= WPA_KEY_MGMT_IEEE8021X_SHA256; | |
523 | #endif /* CONFIG_IEEE80211W */ | |
ad08c363 JM |
524 | #ifdef CONFIG_WPS |
525 | else if (os_strcmp(start, "WPS") == 0) | |
526 | val |= WPA_KEY_MGMT_WPS; | |
527 | #endif /* CONFIG_WPS */ | |
6fc6879b JM |
528 | else { |
529 | wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'", | |
530 | line, start); | |
531 | errors++; | |
532 | } | |
533 | ||
534 | if (last) | |
535 | break; | |
536 | start = end + 1; | |
537 | } | |
538 | os_free(buf); | |
539 | ||
540 | if (val == 0) { | |
541 | wpa_printf(MSG_ERROR, | |
542 | "Line %d: no key_mgmt values configured.", line); | |
543 | errors++; | |
544 | } | |
545 | ||
546 | wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val); | |
547 | ssid->key_mgmt = val; | |
548 | return errors ? -1 : 0; | |
549 | } | |
550 | ||
551 | ||
552 | #ifndef NO_CONFIG_WRITE | |
553 | static char * wpa_config_write_key_mgmt(const struct parse_data *data, | |
554 | struct wpa_ssid *ssid) | |
555 | { | |
556 | char *buf, *pos, *end; | |
557 | int ret; | |
558 | ||
559 | pos = buf = os_zalloc(50); | |
560 | if (buf == NULL) | |
561 | return NULL; | |
562 | end = buf + 50; | |
563 | ||
564 | if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { | |
565 | ret = os_snprintf(pos, end - pos, "%sWPA-PSK", | |
566 | pos == buf ? "" : " "); | |
567 | if (ret < 0 || ret >= end - pos) { | |
568 | end[-1] = '\0'; | |
569 | return buf; | |
570 | } | |
571 | pos += ret; | |
572 | } | |
573 | ||
574 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) { | |
575 | ret = os_snprintf(pos, end - pos, "%sWPA-EAP", | |
576 | pos == buf ? "" : " "); | |
577 | if (ret < 0 || ret >= end - pos) { | |
578 | end[-1] = '\0'; | |
579 | return buf; | |
580 | } | |
581 | pos += ret; | |
582 | } | |
583 | ||
584 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { | |
585 | ret = os_snprintf(pos, end - pos, "%sIEEE8021X", | |
586 | pos == buf ? "" : " "); | |
587 | if (ret < 0 || ret >= end - pos) { | |
588 | end[-1] = '\0'; | |
589 | return buf; | |
590 | } | |
591 | pos += ret; | |
592 | } | |
593 | ||
594 | if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) { | |
595 | ret = os_snprintf(pos, end - pos, "%sNONE", | |
596 | pos == buf ? "" : " "); | |
597 | if (ret < 0 || ret >= end - pos) { | |
598 | end[-1] = '\0'; | |
599 | return buf; | |
600 | } | |
601 | pos += ret; | |
602 | } | |
603 | ||
604 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) { | |
605 | ret = os_snprintf(pos, end - pos, "%sWPA-NONE", | |
606 | pos == buf ? "" : " "); | |
607 | if (ret < 0 || ret >= end - pos) { | |
608 | end[-1] = '\0'; | |
609 | return buf; | |
610 | } | |
611 | pos += ret; | |
612 | } | |
613 | ||
614 | #ifdef CONFIG_IEEE80211R | |
615 | if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) | |
616 | pos += os_snprintf(pos, end - pos, "%sFT-PSK", | |
617 | pos == buf ? "" : " "); | |
618 | ||
619 | if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) | |
620 | pos += os_snprintf(pos, end - pos, "%sFT-EAP", | |
621 | pos == buf ? "" : " "); | |
622 | #endif /* CONFIG_IEEE80211R */ | |
623 | ||
56586197 JM |
624 | #ifdef CONFIG_IEEE80211W |
625 | if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) | |
626 | pos += os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256", | |
627 | pos == buf ? "" : " "); | |
628 | ||
629 | if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) | |
630 | pos += os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256", | |
631 | pos == buf ? "" : " "); | |
632 | #endif /* CONFIG_IEEE80211W */ | |
633 | ||
728fae16 JM |
634 | #ifdef CONFIG_WPS |
635 | if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) | |
636 | pos += os_snprintf(pos, end - pos, "%sWPS", | |
637 | pos == buf ? "" : " "); | |
638 | #endif /* CONFIG_WPS */ | |
639 | ||
6fc6879b JM |
640 | return buf; |
641 | } | |
642 | #endif /* NO_CONFIG_WRITE */ | |
643 | ||
644 | ||
645 | static int wpa_config_parse_cipher(int line, const char *value) | |
646 | { | |
647 | int val = 0, last; | |
648 | char *start, *end, *buf; | |
649 | ||
650 | buf = os_strdup(value); | |
651 | if (buf == NULL) | |
652 | return -1; | |
653 | start = buf; | |
654 | ||
655 | while (*start != '\0') { | |
656 | while (*start == ' ' || *start == '\t') | |
657 | start++; | |
658 | if (*start == '\0') | |
659 | break; | |
660 | end = start; | |
661 | while (*end != ' ' && *end != '\t' && *end != '\0') | |
662 | end++; | |
663 | last = *end == '\0'; | |
664 | *end = '\0'; | |
665 | if (os_strcmp(start, "CCMP") == 0) | |
666 | val |= WPA_CIPHER_CCMP; | |
667 | else if (os_strcmp(start, "TKIP") == 0) | |
668 | val |= WPA_CIPHER_TKIP; | |
669 | else if (os_strcmp(start, "WEP104") == 0) | |
670 | val |= WPA_CIPHER_WEP104; | |
671 | else if (os_strcmp(start, "WEP40") == 0) | |
672 | val |= WPA_CIPHER_WEP40; | |
673 | else if (os_strcmp(start, "NONE") == 0) | |
674 | val |= WPA_CIPHER_NONE; | |
675 | else { | |
676 | wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.", | |
677 | line, start); | |
678 | os_free(buf); | |
679 | return -1; | |
680 | } | |
681 | ||
682 | if (last) | |
683 | break; | |
684 | start = end + 1; | |
685 | } | |
686 | os_free(buf); | |
687 | ||
688 | if (val == 0) { | |
689 | wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.", | |
690 | line); | |
691 | return -1; | |
692 | } | |
693 | return val; | |
694 | } | |
695 | ||
696 | ||
697 | #ifndef NO_CONFIG_WRITE | |
698 | static char * wpa_config_write_cipher(int cipher) | |
699 | { | |
700 | char *buf, *pos, *end; | |
701 | int ret; | |
702 | ||
703 | pos = buf = os_zalloc(50); | |
704 | if (buf == NULL) | |
705 | return NULL; | |
706 | end = buf + 50; | |
707 | ||
708 | if (cipher & WPA_CIPHER_CCMP) { | |
709 | ret = os_snprintf(pos, end - pos, "%sCCMP", | |
710 | pos == buf ? "" : " "); | |
711 | if (ret < 0 || ret >= end - pos) { | |
712 | end[-1] = '\0'; | |
713 | return buf; | |
714 | } | |
715 | pos += ret; | |
716 | } | |
717 | ||
718 | if (cipher & WPA_CIPHER_TKIP) { | |
719 | ret = os_snprintf(pos, end - pos, "%sTKIP", | |
720 | pos == buf ? "" : " "); | |
721 | if (ret < 0 || ret >= end - pos) { | |
722 | end[-1] = '\0'; | |
723 | return buf; | |
724 | } | |
725 | pos += ret; | |
726 | } | |
727 | ||
728 | if (cipher & WPA_CIPHER_WEP104) { | |
729 | ret = os_snprintf(pos, end - pos, "%sWEP104", | |
730 | pos == buf ? "" : " "); | |
731 | if (ret < 0 || ret >= end - pos) { | |
732 | end[-1] = '\0'; | |
733 | return buf; | |
734 | } | |
735 | pos += ret; | |
736 | } | |
737 | ||
738 | if (cipher & WPA_CIPHER_WEP40) { | |
739 | ret = os_snprintf(pos, end - pos, "%sWEP40", | |
740 | pos == buf ? "" : " "); | |
741 | if (ret < 0 || ret >= end - pos) { | |
742 | end[-1] = '\0'; | |
743 | return buf; | |
744 | } | |
745 | pos += ret; | |
746 | } | |
747 | ||
748 | if (cipher & WPA_CIPHER_NONE) { | |
749 | ret = os_snprintf(pos, end - pos, "%sNONE", | |
750 | pos == buf ? "" : " "); | |
751 | if (ret < 0 || ret >= end - pos) { | |
752 | end[-1] = '\0'; | |
753 | return buf; | |
754 | } | |
755 | pos += ret; | |
756 | } | |
757 | ||
758 | return buf; | |
759 | } | |
760 | #endif /* NO_CONFIG_WRITE */ | |
761 | ||
762 | ||
763 | static int wpa_config_parse_pairwise(const struct parse_data *data, | |
764 | struct wpa_ssid *ssid, int line, | |
765 | const char *value) | |
766 | { | |
767 | int val; | |
768 | val = wpa_config_parse_cipher(line, value); | |
769 | if (val == -1) | |
770 | return -1; | |
771 | if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_NONE)) { | |
772 | wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher " | |
773 | "(0x%x).", line, val); | |
774 | return -1; | |
775 | } | |
776 | ||
777 | wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val); | |
778 | ssid->pairwise_cipher = val; | |
779 | return 0; | |
780 | } | |
781 | ||
782 | ||
783 | #ifndef NO_CONFIG_WRITE | |
784 | static char * wpa_config_write_pairwise(const struct parse_data *data, | |
785 | struct wpa_ssid *ssid) | |
786 | { | |
787 | return wpa_config_write_cipher(ssid->pairwise_cipher); | |
788 | } | |
789 | #endif /* NO_CONFIG_WRITE */ | |
790 | ||
791 | ||
792 | static int wpa_config_parse_group(const struct parse_data *data, | |
793 | struct wpa_ssid *ssid, int line, | |
794 | const char *value) | |
795 | { | |
796 | int val; | |
797 | val = wpa_config_parse_cipher(line, value); | |
798 | if (val == -1) | |
799 | return -1; | |
800 | if (val & ~(WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | WPA_CIPHER_WEP104 | | |
801 | WPA_CIPHER_WEP40)) { | |
802 | wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher " | |
803 | "(0x%x).", line, val); | |
804 | return -1; | |
805 | } | |
806 | ||
807 | wpa_printf(MSG_MSGDUMP, "group: 0x%x", val); | |
808 | ssid->group_cipher = val; | |
809 | return 0; | |
810 | } | |
811 | ||
812 | ||
813 | #ifndef NO_CONFIG_WRITE | |
814 | static char * wpa_config_write_group(const struct parse_data *data, | |
815 | struct wpa_ssid *ssid) | |
816 | { | |
817 | return wpa_config_write_cipher(ssid->group_cipher); | |
818 | } | |
819 | #endif /* NO_CONFIG_WRITE */ | |
820 | ||
821 | ||
822 | static int wpa_config_parse_auth_alg(const struct parse_data *data, | |
823 | struct wpa_ssid *ssid, int line, | |
824 | const char *value) | |
825 | { | |
826 | int val = 0, last, errors = 0; | |
827 | char *start, *end, *buf; | |
828 | ||
829 | buf = os_strdup(value); | |
830 | if (buf == NULL) | |
831 | return -1; | |
832 | start = buf; | |
833 | ||
834 | while (*start != '\0') { | |
835 | while (*start == ' ' || *start == '\t') | |
836 | start++; | |
837 | if (*start == '\0') | |
838 | break; | |
839 | end = start; | |
840 | while (*end != ' ' && *end != '\t' && *end != '\0') | |
841 | end++; | |
842 | last = *end == '\0'; | |
843 | *end = '\0'; | |
844 | if (os_strcmp(start, "OPEN") == 0) | |
845 | val |= WPA_AUTH_ALG_OPEN; | |
846 | else if (os_strcmp(start, "SHARED") == 0) | |
847 | val |= WPA_AUTH_ALG_SHARED; | |
848 | else if (os_strcmp(start, "LEAP") == 0) | |
849 | val |= WPA_AUTH_ALG_LEAP; | |
850 | else { | |
851 | wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'", | |
852 | line, start); | |
853 | errors++; | |
854 | } | |
855 | ||
856 | if (last) | |
857 | break; | |
858 | start = end + 1; | |
859 | } | |
860 | os_free(buf); | |
861 | ||
862 | if (val == 0) { | |
863 | wpa_printf(MSG_ERROR, | |
864 | "Line %d: no auth_alg values configured.", line); | |
865 | errors++; | |
866 | } | |
867 | ||
868 | wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val); | |
869 | ssid->auth_alg = val; | |
870 | return errors ? -1 : 0; | |
871 | } | |
872 | ||
873 | ||
874 | #ifndef NO_CONFIG_WRITE | |
875 | static char * wpa_config_write_auth_alg(const struct parse_data *data, | |
876 | struct wpa_ssid *ssid) | |
877 | { | |
878 | char *buf, *pos, *end; | |
879 | int ret; | |
880 | ||
881 | pos = buf = os_zalloc(30); | |
882 | if (buf == NULL) | |
883 | return NULL; | |
884 | end = buf + 30; | |
885 | ||
886 | if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) { | |
887 | ret = os_snprintf(pos, end - pos, "%sOPEN", | |
888 | pos == buf ? "" : " "); | |
889 | if (ret < 0 || ret >= end - pos) { | |
890 | end[-1] = '\0'; | |
891 | return buf; | |
892 | } | |
893 | pos += ret; | |
894 | } | |
895 | ||
896 | if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) { | |
897 | ret = os_snprintf(pos, end - pos, "%sSHARED", | |
898 | pos == buf ? "" : " "); | |
899 | if (ret < 0 || ret >= end - pos) { | |
900 | end[-1] = '\0'; | |
901 | return buf; | |
902 | } | |
903 | pos += ret; | |
904 | } | |
905 | ||
906 | if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) { | |
907 | ret = os_snprintf(pos, end - pos, "%sLEAP", | |
908 | pos == buf ? "" : " "); | |
909 | if (ret < 0 || ret >= end - pos) { | |
910 | end[-1] = '\0'; | |
911 | return buf; | |
912 | } | |
913 | pos += ret; | |
914 | } | |
915 | ||
916 | return buf; | |
917 | } | |
918 | #endif /* NO_CONFIG_WRITE */ | |
919 | ||
920 | ||
b766a9a2 JM |
921 | static int * wpa_config_parse_freqs(const struct parse_data *data, |
922 | struct wpa_ssid *ssid, int line, | |
923 | const char *value) | |
d3a98225 JM |
924 | { |
925 | int *freqs; | |
926 | size_t used, len; | |
927 | const char *pos; | |
928 | ||
929 | used = 0; | |
930 | len = 10; | |
931 | freqs = os_zalloc((len + 1) * sizeof(int)); | |
932 | if (freqs == NULL) | |
b766a9a2 | 933 | return NULL; |
d3a98225 JM |
934 | |
935 | pos = value; | |
936 | while (pos) { | |
937 | while (*pos == ' ') | |
938 | pos++; | |
939 | if (used == len) { | |
940 | int *n; | |
941 | size_t i; | |
942 | n = os_realloc(freqs, (len * 2 + 1) * sizeof(int)); | |
943 | if (n == NULL) { | |
944 | os_free(freqs); | |
b766a9a2 | 945 | return NULL; |
d3a98225 JM |
946 | } |
947 | for (i = len; i <= len * 2; i++) | |
948 | n[i] = 0; | |
949 | freqs = n; | |
950 | len *= 2; | |
951 | } | |
952 | ||
953 | freqs[used] = atoi(pos); | |
954 | if (freqs[used] == 0) | |
955 | break; | |
956 | used++; | |
957 | pos = os_strchr(pos + 1, ' '); | |
958 | } | |
959 | ||
b766a9a2 JM |
960 | return freqs; |
961 | } | |
962 | ||
963 | ||
964 | static int wpa_config_parse_scan_freq(const struct parse_data *data, | |
965 | struct wpa_ssid *ssid, int line, | |
966 | const char *value) | |
967 | { | |
968 | int *freqs; | |
969 | ||
970 | freqs = wpa_config_parse_freqs(data, ssid, line, value); | |
971 | if (freqs == NULL) | |
972 | return -1; | |
d3a98225 JM |
973 | os_free(ssid->scan_freq); |
974 | ssid->scan_freq = freqs; | |
975 | ||
976 | return 0; | |
977 | } | |
978 | ||
979 | ||
b766a9a2 JM |
980 | static int wpa_config_parse_freq_list(const struct parse_data *data, |
981 | struct wpa_ssid *ssid, int line, | |
982 | const char *value) | |
983 | { | |
984 | int *freqs; | |
985 | ||
986 | freqs = wpa_config_parse_freqs(data, ssid, line, value); | |
987 | if (freqs == NULL) | |
988 | return -1; | |
989 | os_free(ssid->freq_list); | |
990 | ssid->freq_list = freqs; | |
991 | ||
992 | return 0; | |
993 | } | |
994 | ||
995 | ||
d3a98225 | 996 | #ifndef NO_CONFIG_WRITE |
b766a9a2 JM |
997 | static char * wpa_config_write_freqs(const struct parse_data *data, |
998 | const int *freqs) | |
d3a98225 JM |
999 | { |
1000 | char *buf, *pos, *end; | |
1001 | int i, ret; | |
1002 | size_t count; | |
1003 | ||
b766a9a2 | 1004 | if (freqs == NULL) |
d3a98225 JM |
1005 | return NULL; |
1006 | ||
1007 | count = 0; | |
b766a9a2 | 1008 | for (i = 0; freqs[i]; i++) |
d3a98225 JM |
1009 | count++; |
1010 | ||
1011 | pos = buf = os_zalloc(10 * count + 1); | |
1012 | if (buf == NULL) | |
1013 | return NULL; | |
1014 | end = buf + 10 * count + 1; | |
1015 | ||
b766a9a2 | 1016 | for (i = 0; freqs[i]; i++) { |
d3a98225 | 1017 | ret = os_snprintf(pos, end - pos, "%s%u", |
b766a9a2 | 1018 | i == 0 ? "" : " ", freqs[i]); |
d3a98225 JM |
1019 | if (ret < 0 || ret >= end - pos) { |
1020 | end[-1] = '\0'; | |
1021 | return buf; | |
1022 | } | |
1023 | pos += ret; | |
1024 | } | |
1025 | ||
1026 | return buf; | |
1027 | } | |
b766a9a2 JM |
1028 | |
1029 | ||
1030 | static char * wpa_config_write_scan_freq(const struct parse_data *data, | |
1031 | struct wpa_ssid *ssid) | |
1032 | { | |
1033 | return wpa_config_write_freqs(data, ssid->scan_freq); | |
1034 | } | |
1035 | ||
1036 | ||
1037 | static char * wpa_config_write_freq_list(const struct parse_data *data, | |
1038 | struct wpa_ssid *ssid) | |
1039 | { | |
1040 | return wpa_config_write_freqs(data, ssid->freq_list); | |
1041 | } | |
d3a98225 JM |
1042 | #endif /* NO_CONFIG_WRITE */ |
1043 | ||
1044 | ||
6fc6879b JM |
1045 | #ifdef IEEE8021X_EAPOL |
1046 | static int wpa_config_parse_eap(const struct parse_data *data, | |
1047 | struct wpa_ssid *ssid, int line, | |
1048 | const char *value) | |
1049 | { | |
1050 | int last, errors = 0; | |
1051 | char *start, *end, *buf; | |
1052 | struct eap_method_type *methods = NULL, *tmp; | |
1053 | size_t num_methods = 0; | |
1054 | ||
1055 | buf = os_strdup(value); | |
1056 | if (buf == NULL) | |
1057 | return -1; | |
1058 | start = buf; | |
1059 | ||
1060 | while (*start != '\0') { | |
1061 | while (*start == ' ' || *start == '\t') | |
1062 | start++; | |
1063 | if (*start == '\0') | |
1064 | break; | |
1065 | end = start; | |
1066 | while (*end != ' ' && *end != '\t' && *end != '\0') | |
1067 | end++; | |
1068 | last = *end == '\0'; | |
1069 | *end = '\0'; | |
1070 | tmp = methods; | |
1071 | methods = os_realloc(methods, | |
1072 | (num_methods + 1) * sizeof(*methods)); | |
1073 | if (methods == NULL) { | |
1074 | os_free(tmp); | |
1075 | os_free(buf); | |
1076 | return -1; | |
1077 | } | |
1078 | methods[num_methods].method = eap_peer_get_type( | |
1079 | start, &methods[num_methods].vendor); | |
1080 | if (methods[num_methods].vendor == EAP_VENDOR_IETF && | |
1081 | methods[num_methods].method == EAP_TYPE_NONE) { | |
1082 | wpa_printf(MSG_ERROR, "Line %d: unknown EAP method " | |
1083 | "'%s'", line, start); | |
1084 | wpa_printf(MSG_ERROR, "You may need to add support for" | |
1085 | " this EAP method during wpa_supplicant\n" | |
1086 | "build time configuration.\n" | |
1087 | "See README for more information."); | |
1088 | errors++; | |
1089 | } else if (methods[num_methods].vendor == EAP_VENDOR_IETF && | |
1090 | methods[num_methods].method == EAP_TYPE_LEAP) | |
1091 | ssid->leap++; | |
1092 | else | |
1093 | ssid->non_leap++; | |
1094 | num_methods++; | |
1095 | if (last) | |
1096 | break; | |
1097 | start = end + 1; | |
1098 | } | |
1099 | os_free(buf); | |
1100 | ||
1101 | tmp = methods; | |
1102 | methods = os_realloc(methods, (num_methods + 1) * sizeof(*methods)); | |
1103 | if (methods == NULL) { | |
1104 | os_free(tmp); | |
1105 | return -1; | |
1106 | } | |
1107 | methods[num_methods].vendor = EAP_VENDOR_IETF; | |
1108 | methods[num_methods].method = EAP_TYPE_NONE; | |
1109 | num_methods++; | |
1110 | ||
1111 | wpa_hexdump(MSG_MSGDUMP, "eap methods", | |
1112 | (u8 *) methods, num_methods * sizeof(*methods)); | |
1113 | ssid->eap.eap_methods = methods; | |
1114 | return errors ? -1 : 0; | |
1115 | } | |
1116 | ||
1117 | ||
1118 | static char * wpa_config_write_eap(const struct parse_data *data, | |
1119 | struct wpa_ssid *ssid) | |
1120 | { | |
1121 | int i, ret; | |
1122 | char *buf, *pos, *end; | |
1123 | const struct eap_method_type *eap_methods = ssid->eap.eap_methods; | |
1124 | const char *name; | |
1125 | ||
1126 | if (eap_methods == NULL) | |
1127 | return NULL; | |
1128 | ||
1129 | pos = buf = os_zalloc(100); | |
1130 | if (buf == NULL) | |
1131 | return NULL; | |
1132 | end = buf + 100; | |
1133 | ||
1134 | for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF || | |
1135 | eap_methods[i].method != EAP_TYPE_NONE; i++) { | |
1136 | name = eap_get_name(eap_methods[i].vendor, | |
1137 | eap_methods[i].method); | |
1138 | if (name) { | |
1139 | ret = os_snprintf(pos, end - pos, "%s%s", | |
1140 | pos == buf ? "" : " ", name); | |
1141 | if (ret < 0 || ret >= end - pos) | |
1142 | break; | |
1143 | pos += ret; | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | end[-1] = '\0'; | |
1148 | ||
1149 | return buf; | |
1150 | } | |
1151 | ||
1152 | ||
1153 | static int wpa_config_parse_password(const struct parse_data *data, | |
1154 | struct wpa_ssid *ssid, int line, | |
1155 | const char *value) | |
1156 | { | |
1157 | u8 *hash; | |
1158 | ||
b56c0546 JM |
1159 | if (os_strcmp(value, "NULL") == 0) { |
1160 | wpa_printf(MSG_DEBUG, "Unset configuration string 'password'"); | |
1161 | os_free(ssid->eap.password); | |
1162 | ssid->eap.password = NULL; | |
1163 | ssid->eap.password_len = 0; | |
1164 | return 0; | |
1165 | } | |
1166 | ||
6fc6879b JM |
1167 | if (os_strncmp(value, "hash:", 5) != 0) { |
1168 | char *tmp; | |
1169 | size_t res_len; | |
1170 | ||
1171 | tmp = wpa_config_parse_string(value, &res_len); | |
1172 | if (tmp == NULL) { | |
1173 | wpa_printf(MSG_ERROR, "Line %d: failed to parse " | |
1174 | "password.", line); | |
1175 | return -1; | |
1176 | } | |
556f5a2a HS |
1177 | wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name, |
1178 | (u8 *) tmp, res_len); | |
6fc6879b JM |
1179 | |
1180 | os_free(ssid->eap.password); | |
1181 | ssid->eap.password = (u8 *) tmp; | |
1182 | ssid->eap.password_len = res_len; | |
1183 | ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH; | |
1184 | ||
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | ||
1189 | /* NtPasswordHash: hash:<32 hex digits> */ | |
1190 | if (os_strlen(value + 5) != 2 * 16) { | |
1191 | wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length " | |
1192 | "(expected 32 hex digits)", line); | |
1193 | return -1; | |
1194 | } | |
1195 | ||
1196 | hash = os_malloc(16); | |
1197 | if (hash == NULL) | |
1198 | return -1; | |
1199 | ||
1200 | if (hexstr2bin(value + 5, hash, 16)) { | |
1201 | os_free(hash); | |
1202 | wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line); | |
1203 | return -1; | |
1204 | } | |
1205 | ||
1206 | wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16); | |
1207 | ||
1208 | os_free(ssid->eap.password); | |
1209 | ssid->eap.password = hash; | |
1210 | ssid->eap.password_len = 16; | |
1211 | ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH; | |
1212 | ||
1213 | return 0; | |
1214 | } | |
1215 | ||
1216 | ||
1217 | static char * wpa_config_write_password(const struct parse_data *data, | |
1218 | struct wpa_ssid *ssid) | |
1219 | { | |
1220 | char *buf; | |
1221 | ||
1222 | if (ssid->eap.password == NULL) | |
1223 | return NULL; | |
1224 | ||
1225 | if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) { | |
1226 | return wpa_config_write_string( | |
1227 | ssid->eap.password, ssid->eap.password_len); | |
1228 | } | |
1229 | ||
1230 | buf = os_malloc(5 + 32 + 1); | |
1231 | if (buf == NULL) | |
1232 | return NULL; | |
1233 | ||
1234 | os_memcpy(buf, "hash:", 5); | |
1235 | wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16); | |
1236 | ||
1237 | return buf; | |
1238 | } | |
1239 | #endif /* IEEE8021X_EAPOL */ | |
1240 | ||
1241 | ||
1242 | static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line, | |
1243 | const char *value, int idx) | |
1244 | { | |
1245 | char *buf, title[20]; | |
1246 | int res; | |
1247 | ||
1248 | buf = wpa_config_parse_string(value, len); | |
1249 | if (buf == NULL) { | |
1250 | wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.", | |
1251 | line, idx, value); | |
1252 | return -1; | |
1253 | } | |
1254 | if (*len > MAX_WEP_KEY_LEN) { | |
1255 | wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.", | |
1256 | line, idx, value); | |
1257 | os_free(buf); | |
1258 | return -1; | |
1259 | } | |
1260 | os_memcpy(key, buf, *len); | |
1261 | os_free(buf); | |
1262 | res = os_snprintf(title, sizeof(title), "wep_key%d", idx); | |
1263 | if (res >= 0 && (size_t) res < sizeof(title)) | |
1264 | wpa_hexdump_key(MSG_MSGDUMP, title, key, *len); | |
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | ||
1269 | static int wpa_config_parse_wep_key0(const struct parse_data *data, | |
1270 | struct wpa_ssid *ssid, int line, | |
1271 | const char *value) | |
1272 | { | |
1273 | return wpa_config_parse_wep_key(ssid->wep_key[0], | |
1274 | &ssid->wep_key_len[0], line, | |
1275 | value, 0); | |
1276 | } | |
1277 | ||
1278 | ||
1279 | static int wpa_config_parse_wep_key1(const struct parse_data *data, | |
1280 | struct wpa_ssid *ssid, int line, | |
1281 | const char *value) | |
1282 | { | |
1283 | return wpa_config_parse_wep_key(ssid->wep_key[1], | |
1284 | &ssid->wep_key_len[1], line, | |
1285 | value, 1); | |
1286 | } | |
1287 | ||
1288 | ||
1289 | static int wpa_config_parse_wep_key2(const struct parse_data *data, | |
1290 | struct wpa_ssid *ssid, int line, | |
1291 | const char *value) | |
1292 | { | |
1293 | return wpa_config_parse_wep_key(ssid->wep_key[2], | |
1294 | &ssid->wep_key_len[2], line, | |
1295 | value, 2); | |
1296 | } | |
1297 | ||
1298 | ||
1299 | static int wpa_config_parse_wep_key3(const struct parse_data *data, | |
1300 | struct wpa_ssid *ssid, int line, | |
1301 | const char *value) | |
1302 | { | |
1303 | return wpa_config_parse_wep_key(ssid->wep_key[3], | |
1304 | &ssid->wep_key_len[3], line, | |
1305 | value, 3); | |
1306 | } | |
1307 | ||
1308 | ||
1309 | #ifndef NO_CONFIG_WRITE | |
1310 | static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx) | |
1311 | { | |
1312 | if (ssid->wep_key_len[idx] == 0) | |
1313 | return NULL; | |
1314 | return wpa_config_write_string(ssid->wep_key[idx], | |
1315 | ssid->wep_key_len[idx]); | |
1316 | } | |
1317 | ||
1318 | ||
1319 | static char * wpa_config_write_wep_key0(const struct parse_data *data, | |
1320 | struct wpa_ssid *ssid) | |
1321 | { | |
1322 | return wpa_config_write_wep_key(ssid, 0); | |
1323 | } | |
1324 | ||
1325 | ||
1326 | static char * wpa_config_write_wep_key1(const struct parse_data *data, | |
1327 | struct wpa_ssid *ssid) | |
1328 | { | |
1329 | return wpa_config_write_wep_key(ssid, 1); | |
1330 | } | |
1331 | ||
1332 | ||
1333 | static char * wpa_config_write_wep_key2(const struct parse_data *data, | |
1334 | struct wpa_ssid *ssid) | |
1335 | { | |
1336 | return wpa_config_write_wep_key(ssid, 2); | |
1337 | } | |
1338 | ||
1339 | ||
1340 | static char * wpa_config_write_wep_key3(const struct parse_data *data, | |
1341 | struct wpa_ssid *ssid) | |
1342 | { | |
1343 | return wpa_config_write_wep_key(ssid, 3); | |
1344 | } | |
1345 | #endif /* NO_CONFIG_WRITE */ | |
1346 | ||
1347 | ||
fbdcfd57 JM |
1348 | #ifdef CONFIG_P2P |
1349 | ||
1350 | static int wpa_config_parse_p2p_client_list(const struct parse_data *data, | |
1351 | struct wpa_ssid *ssid, int line, | |
1352 | const char *value) | |
1353 | { | |
1354 | const char *pos; | |
1355 | u8 *buf, *n, addr[ETH_ALEN]; | |
1356 | size_t count; | |
1357 | ||
1358 | buf = NULL; | |
1359 | count = 0; | |
1360 | ||
1361 | pos = value; | |
1362 | while (pos && *pos) { | |
1363 | while (*pos == ' ') | |
1364 | pos++; | |
1365 | ||
1366 | if (hwaddr_aton(pos, addr)) { | |
1367 | wpa_printf(MSG_ERROR, "Line %d: Invalid " | |
1368 | "p2p_client_list address '%s'.", | |
1369 | line, value); | |
1370 | /* continue anyway */ | |
1371 | } else { | |
1372 | n = os_realloc(buf, (count + 1) * ETH_ALEN); | |
1373 | if (n == NULL) { | |
1374 | os_free(buf); | |
1375 | return -1; | |
1376 | } | |
1377 | buf = n; | |
1378 | os_memcpy(buf + count * ETH_ALEN, addr, ETH_ALEN); | |
1379 | count++; | |
1380 | wpa_hexdump(MSG_MSGDUMP, "p2p_client_list", | |
1381 | addr, ETH_ALEN); | |
1382 | } | |
1383 | ||
1384 | pos = os_strchr(pos, ' '); | |
1385 | } | |
1386 | ||
1387 | os_free(ssid->p2p_client_list); | |
1388 | ssid->p2p_client_list = buf; | |
1389 | ssid->num_p2p_clients = count; | |
1390 | ||
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | ||
1395 | #ifndef NO_CONFIG_WRITE | |
1396 | static char * wpa_config_write_p2p_client_list(const struct parse_data *data, | |
1397 | struct wpa_ssid *ssid) | |
1398 | { | |
1399 | char *value, *end, *pos; | |
1400 | int res; | |
1401 | size_t i; | |
1402 | ||
1403 | if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0) | |
1404 | return NULL; | |
1405 | ||
1406 | value = os_malloc(20 * ssid->num_p2p_clients); | |
1407 | if (value == NULL) | |
1408 | return NULL; | |
1409 | pos = value; | |
1410 | end = value + 20 * ssid->num_p2p_clients; | |
1411 | ||
1412 | for (i = 0; i < ssid->num_p2p_clients; i++) { | |
1413 | res = os_snprintf(pos, end - pos, MACSTR " ", | |
1414 | MAC2STR(ssid->p2p_client_list + | |
1415 | i * ETH_ALEN)); | |
1416 | if (res < 0 || res >= end - pos) { | |
1417 | os_free(value); | |
1418 | return NULL; | |
1419 | } | |
1420 | pos += res; | |
1421 | } | |
1422 | ||
1423 | if (pos > value) | |
1424 | pos[-1] = '\0'; | |
1425 | ||
1426 | return value; | |
1427 | } | |
1428 | #endif /* NO_CONFIG_WRITE */ | |
1429 | ||
1430 | #endif /* CONFIG_P2P */ | |
1431 | ||
6fc6879b JM |
1432 | /* Helper macros for network block parser */ |
1433 | ||
1434 | #ifdef OFFSET | |
1435 | #undef OFFSET | |
1436 | #endif /* OFFSET */ | |
1437 | /* OFFSET: Get offset of a variable within the wpa_ssid structure */ | |
1438 | #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v) | |
1439 | ||
1440 | /* STR: Define a string variable for an ASCII string; f = field name */ | |
1441 | #ifdef NO_CONFIG_WRITE | |
1442 | #define _STR(f) #f, wpa_config_parse_str, OFFSET(f) | |
1443 | #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f) | |
1444 | #else /* NO_CONFIG_WRITE */ | |
1445 | #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f) | |
1446 | #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f) | |
1447 | #endif /* NO_CONFIG_WRITE */ | |
1448 | #define STR(f) _STR(f), NULL, NULL, NULL, 0 | |
1449 | #define STRe(f) _STRe(f), NULL, NULL, NULL, 0 | |
1450 | #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1 | |
1451 | #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1 | |
1452 | ||
1453 | /* STR_LEN: Define a string variable with a separate variable for storing the | |
1454 | * data length. Unlike STR(), this can be used to store arbitrary binary data | |
1455 | * (i.e., even nul termination character). */ | |
1456 | #define _STR_LEN(f) _STR(f), OFFSET(f ## _len) | |
1457 | #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len) | |
1458 | #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0 | |
1459 | #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0 | |
1460 | #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1 | |
1461 | ||
1462 | /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length | |
1463 | * explicitly specified. */ | |
1464 | #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max) | |
1465 | #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0 | |
1466 | #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1 | |
1467 | ||
1468 | #ifdef NO_CONFIG_WRITE | |
1469 | #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0 | |
1470 | #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0 | |
1471 | #else /* NO_CONFIG_WRITE */ | |
1472 | #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \ | |
1473 | OFFSET(f), (void *) 0 | |
1474 | #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \ | |
1475 | OFFSET(eap.f), (void *) 0 | |
1476 | #endif /* NO_CONFIG_WRITE */ | |
1477 | ||
1478 | /* INT: Define an integer variable */ | |
1479 | #define INT(f) _INT(f), NULL, NULL, 0 | |
1480 | #define INTe(f) _INTe(f), NULL, NULL, 0 | |
1481 | ||
1482 | /* INT_RANGE: Define an integer variable with allowed value range */ | |
1483 | #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0 | |
1484 | ||
1485 | /* FUNC: Define a configuration variable that uses a custom function for | |
1486 | * parsing and writing the value. */ | |
1487 | #ifdef NO_CONFIG_WRITE | |
1488 | #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL | |
1489 | #else /* NO_CONFIG_WRITE */ | |
1490 | #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \ | |
1491 | NULL, NULL, NULL, NULL | |
1492 | #endif /* NO_CONFIG_WRITE */ | |
1493 | #define FUNC(f) _FUNC(f), 0 | |
1494 | #define FUNC_KEY(f) _FUNC(f), 1 | |
1495 | ||
1496 | /* | |
1497 | * Table of network configuration variables. This table is used to parse each | |
1498 | * network configuration variable, e.g., each line in wpa_supplicant.conf file | |
1499 | * that is inside a network block. | |
1500 | * | |
1501 | * This table is generated using the helper macros defined above and with | |
1502 | * generous help from the C pre-processor. The field name is stored as a string | |
1503 | * into .name and for STR and INT types, the offset of the target buffer within | |
1504 | * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar | |
1505 | * offset to the field containing the length of the configuration variable. | |
1506 | * .param3 and .param4 can be used to mark the allowed range (length for STR | |
1507 | * and value for INT). | |
1508 | * | |
1509 | * For each configuration line in wpa_supplicant.conf, the parser goes through | |
1510 | * this table and select the entry that matches with the field name. The parser | |
1511 | * function (.parser) is then called to parse the actual value of the field. | |
1512 | * | |
1513 | * This kind of mechanism makes it easy to add new configuration parameters, | |
1514 | * since only one line needs to be added into this table and into the | |
1515 | * struct wpa_ssid definition if the new variable is either a string or | |
1516 | * integer. More complex types will need to use their own parser and writer | |
1517 | * functions. | |
1518 | */ | |
1519 | static const struct parse_data ssid_fields[] = { | |
1520 | { STR_RANGE(ssid, 0, MAX_SSID_LEN) }, | |
1521 | { INT_RANGE(scan_ssid, 0, 1) }, | |
1522 | { FUNC(bssid) }, | |
1523 | { FUNC_KEY(psk) }, | |
1524 | { FUNC(proto) }, | |
1525 | { FUNC(key_mgmt) }, | |
1526 | { FUNC(pairwise) }, | |
1527 | { FUNC(group) }, | |
1528 | { FUNC(auth_alg) }, | |
d3a98225 | 1529 | { FUNC(scan_freq) }, |
b766a9a2 | 1530 | { FUNC(freq_list) }, |
6fc6879b JM |
1531 | #ifdef IEEE8021X_EAPOL |
1532 | { FUNC(eap) }, | |
1533 | { STR_LENe(identity) }, | |
1534 | { STR_LENe(anonymous_identity) }, | |
556f5a2a | 1535 | { FUNC_KEY(password) }, |
6fc6879b JM |
1536 | { STRe(ca_cert) }, |
1537 | { STRe(ca_path) }, | |
1538 | { STRe(client_cert) }, | |
1539 | { STRe(private_key) }, | |
1540 | { STR_KEYe(private_key_passwd) }, | |
1541 | { STRe(dh_file) }, | |
1542 | { STRe(subject_match) }, | |
1543 | { STRe(altsubject_match) }, | |
1544 | { STRe(ca_cert2) }, | |
1545 | { STRe(ca_path2) }, | |
1546 | { STRe(client_cert2) }, | |
1547 | { STRe(private_key2) }, | |
1548 | { STR_KEYe(private_key2_passwd) }, | |
1549 | { STRe(dh_file2) }, | |
1550 | { STRe(subject_match2) }, | |
1551 | { STRe(altsubject_match2) }, | |
1552 | { STRe(phase1) }, | |
1553 | { STRe(phase2) }, | |
1554 | { STRe(pcsc) }, | |
1555 | { STR_KEYe(pin) }, | |
1556 | { STRe(engine_id) }, | |
1557 | { STRe(key_id) }, | |
61ee0f71 DS |
1558 | { STRe(cert_id) }, |
1559 | { STRe(ca_cert_id) }, | |
98842d51 CL |
1560 | { STR_KEYe(pin2) }, |
1561 | { STRe(engine2_id) }, | |
61ee0f71 DS |
1562 | { STRe(key2_id) }, |
1563 | { STRe(cert2_id) }, | |
1564 | { STRe(ca_cert2_id) }, | |
6fc6879b | 1565 | { INTe(engine) }, |
98842d51 | 1566 | { INTe(engine2) }, |
6fc6879b JM |
1567 | { INT(eapol_flags) }, |
1568 | #endif /* IEEE8021X_EAPOL */ | |
1569 | { FUNC_KEY(wep_key0) }, | |
1570 | { FUNC_KEY(wep_key1) }, | |
1571 | { FUNC_KEY(wep_key2) }, | |
1572 | { FUNC_KEY(wep_key3) }, | |
1573 | { INT(wep_tx_keyidx) }, | |
1574 | { INT(priority) }, | |
1575 | #ifdef IEEE8021X_EAPOL | |
1576 | { INT(eap_workaround) }, | |
1577 | { STRe(pac_file) }, | |
1578 | { INTe(fragment_size) }, | |
1579 | #endif /* IEEE8021X_EAPOL */ | |
2c5d725c | 1580 | { INT_RANGE(mode, 0, 4) }, |
6fc6879b | 1581 | { INT_RANGE(proactive_key_caching, 0, 1) }, |
4dac0245 | 1582 | { INT_RANGE(disabled, 0, 2) }, |
6fc6879b JM |
1583 | { STR(id_str) }, |
1584 | #ifdef CONFIG_IEEE80211W | |
1585 | { INT_RANGE(ieee80211w, 0, 2) }, | |
1586 | #endif /* CONFIG_IEEE80211W */ | |
1587 | { INT_RANGE(peerkey, 0, 1) }, | |
1588 | { INT_RANGE(mixed_cell, 0, 1) }, | |
581a8cde | 1589 | { INT_RANGE(frequency, 0, 10000) }, |
60b94c98 JM |
1590 | { INT(wpa_ptk_rekey) }, |
1591 | { STR(bgscan) }, | |
fbdcfd57 JM |
1592 | #ifdef CONFIG_P2P |
1593 | { FUNC(p2p_client_list) }, | |
1594 | #endif /* CONFIG_P2P */ | |
80e8a5ee BG |
1595 | #ifdef CONFIG_HT_OVERRIDES |
1596 | { INT_RANGE(disable_ht, 0, 1) }, | |
1597 | { INT_RANGE(disable_ht40, -1, 1) }, | |
1598 | { INT_RANGE(disable_max_amsdu, -1, 1) }, | |
1599 | { INT_RANGE(ampdu_factor, -1, 3) }, | |
1600 | { INT_RANGE(ampdu_density, -1, 7) }, | |
1601 | { STR(ht_mcs) }, | |
1602 | #endif /* CONFIG_HT_OVERRIDES */ | |
6fc6879b JM |
1603 | }; |
1604 | ||
1605 | #undef OFFSET | |
1606 | #undef _STR | |
1607 | #undef STR | |
1608 | #undef STR_KEY | |
1609 | #undef _STR_LEN | |
1610 | #undef STR_LEN | |
1611 | #undef STR_LEN_KEY | |
1612 | #undef _STR_RANGE | |
1613 | #undef STR_RANGE | |
1614 | #undef STR_RANGE_KEY | |
1615 | #undef _INT | |
1616 | #undef INT | |
1617 | #undef INT_RANGE | |
1618 | #undef _FUNC | |
1619 | #undef FUNC | |
1620 | #undef FUNC_KEY | |
1621 | #define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0])) | |
1622 | ||
1623 | ||
1624 | /** | |
1625 | * wpa_config_add_prio_network - Add a network to priority lists | |
1626 | * @config: Configuration data from wpa_config_read() | |
1627 | * @ssid: Pointer to the network configuration to be added to the list | |
1628 | * Returns: 0 on success, -1 on failure | |
1629 | * | |
1630 | * This function is used to add a network block to the priority list of | |
1631 | * networks. This must be called for each network when reading in the full | |
1632 | * configuration. In addition, this can be used indirectly when updating | |
1633 | * priorities by calling wpa_config_update_prio_list(). | |
1634 | */ | |
1635 | int wpa_config_add_prio_network(struct wpa_config *config, | |
1636 | struct wpa_ssid *ssid) | |
1637 | { | |
1638 | int prio; | |
1639 | struct wpa_ssid *prev, **nlist; | |
1640 | ||
1641 | /* | |
1642 | * Add to an existing priority list if one is available for the | |
1643 | * configured priority level for this network. | |
1644 | */ | |
1645 | for (prio = 0; prio < config->num_prio; prio++) { | |
1646 | prev = config->pssid[prio]; | |
1647 | if (prev->priority == ssid->priority) { | |
1648 | while (prev->pnext) | |
1649 | prev = prev->pnext; | |
1650 | prev->pnext = ssid; | |
1651 | return 0; | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | /* First network for this priority - add a new priority list */ | |
1656 | nlist = os_realloc(config->pssid, | |
1657 | (config->num_prio + 1) * sizeof(struct wpa_ssid *)); | |
1658 | if (nlist == NULL) | |
1659 | return -1; | |
1660 | ||
1661 | for (prio = 0; prio < config->num_prio; prio++) { | |
1662 | if (nlist[prio]->priority < ssid->priority) | |
1663 | break; | |
1664 | } | |
1665 | ||
1666 | os_memmove(&nlist[prio + 1], &nlist[prio], | |
1667 | (config->num_prio - prio) * sizeof(struct wpa_ssid *)); | |
1668 | ||
1669 | nlist[prio] = ssid; | |
1670 | config->num_prio++; | |
1671 | config->pssid = nlist; | |
1672 | ||
1673 | return 0; | |
1674 | } | |
1675 | ||
1676 | ||
1677 | /** | |
1678 | * wpa_config_update_prio_list - Update network priority list | |
1679 | * @config: Configuration data from wpa_config_read() | |
1680 | * Returns: 0 on success, -1 on failure | |
1681 | * | |
1682 | * This function is called to update the priority list of networks in the | |
1683 | * configuration when a network is being added or removed. This is also called | |
1684 | * if a priority for a network is changed. | |
1685 | */ | |
aa53509f | 1686 | int wpa_config_update_prio_list(struct wpa_config *config) |
6fc6879b JM |
1687 | { |
1688 | struct wpa_ssid *ssid; | |
1689 | int ret = 0; | |
1690 | ||
1691 | os_free(config->pssid); | |
1692 | config->pssid = NULL; | |
1693 | config->num_prio = 0; | |
1694 | ||
1695 | ssid = config->ssid; | |
1696 | while (ssid) { | |
1697 | ssid->pnext = NULL; | |
1698 | if (wpa_config_add_prio_network(config, ssid) < 0) | |
1699 | ret = -1; | |
1700 | ssid = ssid->next; | |
1701 | } | |
1702 | ||
1703 | return ret; | |
1704 | } | |
1705 | ||
1706 | ||
1707 | #ifdef IEEE8021X_EAPOL | |
1708 | static void eap_peer_config_free(struct eap_peer_config *eap) | |
1709 | { | |
1710 | os_free(eap->eap_methods); | |
1711 | os_free(eap->identity); | |
1712 | os_free(eap->anonymous_identity); | |
1713 | os_free(eap->password); | |
1714 | os_free(eap->ca_cert); | |
1715 | os_free(eap->ca_path); | |
1716 | os_free(eap->client_cert); | |
1717 | os_free(eap->private_key); | |
1718 | os_free(eap->private_key_passwd); | |
1719 | os_free(eap->dh_file); | |
1720 | os_free(eap->subject_match); | |
1721 | os_free(eap->altsubject_match); | |
1722 | os_free(eap->ca_cert2); | |
1723 | os_free(eap->ca_path2); | |
1724 | os_free(eap->client_cert2); | |
1725 | os_free(eap->private_key2); | |
1726 | os_free(eap->private_key2_passwd); | |
1727 | os_free(eap->dh_file2); | |
1728 | os_free(eap->subject_match2); | |
1729 | os_free(eap->altsubject_match2); | |
1730 | os_free(eap->phase1); | |
1731 | os_free(eap->phase2); | |
1732 | os_free(eap->pcsc); | |
1733 | os_free(eap->pin); | |
1734 | os_free(eap->engine_id); | |
1735 | os_free(eap->key_id); | |
61ee0f71 DS |
1736 | os_free(eap->cert_id); |
1737 | os_free(eap->ca_cert_id); | |
1738 | os_free(eap->key2_id); | |
1739 | os_free(eap->cert2_id); | |
1740 | os_free(eap->ca_cert2_id); | |
98842d51 CL |
1741 | os_free(eap->pin2); |
1742 | os_free(eap->engine2_id); | |
6fc6879b JM |
1743 | os_free(eap->otp); |
1744 | os_free(eap->pending_req_otp); | |
1745 | os_free(eap->pac_file); | |
1746 | os_free(eap->new_password); | |
1747 | } | |
1748 | #endif /* IEEE8021X_EAPOL */ | |
1749 | ||
1750 | ||
1751 | /** | |
1752 | * wpa_config_free_ssid - Free network/ssid configuration data | |
1753 | * @ssid: Configuration data for the network | |
1754 | * | |
1755 | * This function frees all resources allocated for the network configuration | |
1756 | * data. | |
1757 | */ | |
1758 | void wpa_config_free_ssid(struct wpa_ssid *ssid) | |
1759 | { | |
1760 | os_free(ssid->ssid); | |
1761 | os_free(ssid->passphrase); | |
1762 | #ifdef IEEE8021X_EAPOL | |
1763 | eap_peer_config_free(&ssid->eap); | |
1764 | #endif /* IEEE8021X_EAPOL */ | |
1765 | os_free(ssid->id_str); | |
d3a98225 | 1766 | os_free(ssid->scan_freq); |
b766a9a2 | 1767 | os_free(ssid->freq_list); |
60b94c98 | 1768 | os_free(ssid->bgscan); |
fbdcfd57 | 1769 | os_free(ssid->p2p_client_list); |
80e8a5ee BG |
1770 | #ifdef CONFIG_HT_OVERRIDES |
1771 | os_free(ssid->ht_mcs); | |
1772 | #endif /* CONFIG_HT_OVERRIDES */ | |
6fc6879b JM |
1773 | os_free(ssid); |
1774 | } | |
1775 | ||
1776 | ||
1bb7b8e8 JM |
1777 | void wpa_config_free_cred(struct wpa_cred *cred) |
1778 | { | |
1779 | os_free(cred->realm); | |
1780 | os_free(cred->username); | |
1781 | os_free(cred->password); | |
1782 | os_free(cred->ca_cert); | |
1783 | os_free(cred->imsi); | |
1784 | os_free(cred->milenage); | |
1785 | os_free(cred->domain); | |
1786 | os_free(cred); | |
1787 | } | |
1788 | ||
1789 | ||
6fc6879b JM |
1790 | /** |
1791 | * wpa_config_free - Free configuration data | |
1792 | * @config: Configuration data from wpa_config_read() | |
1793 | * | |
1794 | * This function frees all resources allocated for the configuration data by | |
1795 | * wpa_config_read(). | |
1796 | */ | |
1797 | void wpa_config_free(struct wpa_config *config) | |
1798 | { | |
1799 | #ifndef CONFIG_NO_CONFIG_BLOBS | |
1800 | struct wpa_config_blob *blob, *prevblob; | |
1801 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
1802 | struct wpa_ssid *ssid, *prev = NULL; | |
1bb7b8e8 | 1803 | struct wpa_cred *cred, *cprev; |
e3768e7c | 1804 | |
6fc6879b JM |
1805 | ssid = config->ssid; |
1806 | while (ssid) { | |
1807 | prev = ssid; | |
1808 | ssid = ssid->next; | |
1809 | wpa_config_free_ssid(prev); | |
1810 | } | |
1811 | ||
1bb7b8e8 JM |
1812 | cred = config->cred; |
1813 | while (cred) { | |
1814 | cprev = cred; | |
1815 | cred = cred->next; | |
1816 | wpa_config_free_cred(cprev); | |
1817 | } | |
1818 | ||
6fc6879b JM |
1819 | #ifndef CONFIG_NO_CONFIG_BLOBS |
1820 | blob = config->blobs; | |
1821 | prevblob = NULL; | |
1822 | while (blob) { | |
1823 | prevblob = blob; | |
1824 | blob = blob->next; | |
1825 | wpa_config_free_blob(prevblob); | |
1826 | } | |
1827 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
1828 | ||
1829 | os_free(config->ctrl_interface); | |
1830 | os_free(config->ctrl_interface_group); | |
6fc6879b JM |
1831 | os_free(config->opensc_engine_path); |
1832 | os_free(config->pkcs11_engine_path); | |
1833 | os_free(config->pkcs11_module_path); | |
6fc6879b | 1834 | os_free(config->driver_param); |
3c0b7aa4 JM |
1835 | os_free(config->device_name); |
1836 | os_free(config->manufacturer); | |
1837 | os_free(config->model_name); | |
1838 | os_free(config->model_number); | |
1839 | os_free(config->serial_number); | |
c0e4dd9e | 1840 | os_free(config->config_methods); |
e3768e7c | 1841 | os_free(config->p2p_ssid_postfix); |
6fc6879b JM |
1842 | os_free(config->pssid); |
1843 | os_free(config); | |
1844 | } | |
1845 | ||
1846 | ||
7c49fdd0 SL |
1847 | /** |
1848 | * wpa_config_foreach_network - Iterate over each configured network | |
1849 | * @config: Configuration data from wpa_config_read() | |
1850 | * @func: Callback function to process each network | |
1851 | * @arg: Opaque argument to pass to callback function | |
1852 | * | |
1853 | * Iterate over the set of configured networks calling the specified | |
1854 | * function for each item. We guard against callbacks removing the | |
1855 | * supplied network. | |
1856 | */ | |
1857 | void wpa_config_foreach_network(struct wpa_config *config, | |
1858 | void (*func)(void *, struct wpa_ssid *), | |
1859 | void *arg) | |
1860 | { | |
1861 | struct wpa_ssid *ssid, *next; | |
1862 | ||
1863 | ssid = config->ssid; | |
1864 | while (ssid) { | |
1865 | next = ssid->next; | |
1866 | func(arg, ssid); | |
1867 | ssid = next; | |
1868 | } | |
1869 | } | |
1870 | ||
1871 | ||
6fc6879b JM |
1872 | /** |
1873 | * wpa_config_get_network - Get configured network based on id | |
1874 | * @config: Configuration data from wpa_config_read() | |
1875 | * @id: Unique network id to search for | |
1876 | * Returns: Network configuration or %NULL if not found | |
1877 | */ | |
1878 | struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id) | |
1879 | { | |
1880 | struct wpa_ssid *ssid; | |
1881 | ||
1882 | ssid = config->ssid; | |
1883 | while (ssid) { | |
1884 | if (id == ssid->id) | |
1885 | break; | |
1886 | ssid = ssid->next; | |
1887 | } | |
1888 | ||
1889 | return ssid; | |
1890 | } | |
1891 | ||
1892 | ||
1893 | /** | |
1894 | * wpa_config_add_network - Add a new network with empty configuration | |
1895 | * @config: Configuration data from wpa_config_read() | |
1896 | * Returns: The new network configuration or %NULL if operation failed | |
1897 | */ | |
1898 | struct wpa_ssid * wpa_config_add_network(struct wpa_config *config) | |
1899 | { | |
1900 | int id; | |
1901 | struct wpa_ssid *ssid, *last = NULL; | |
1902 | ||
1903 | id = -1; | |
1904 | ssid = config->ssid; | |
1905 | while (ssid) { | |
1906 | if (ssid->id > id) | |
1907 | id = ssid->id; | |
1908 | last = ssid; | |
1909 | ssid = ssid->next; | |
1910 | } | |
1911 | id++; | |
1912 | ||
1913 | ssid = os_zalloc(sizeof(*ssid)); | |
1914 | if (ssid == NULL) | |
1915 | return NULL; | |
1916 | ssid->id = id; | |
1917 | if (last) | |
1918 | last->next = ssid; | |
1919 | else | |
1920 | config->ssid = ssid; | |
1921 | ||
1922 | wpa_config_update_prio_list(config); | |
1923 | ||
1924 | return ssid; | |
1925 | } | |
1926 | ||
1927 | ||
1928 | /** | |
1929 | * wpa_config_remove_network - Remove a configured network based on id | |
1930 | * @config: Configuration data from wpa_config_read() | |
1931 | * @id: Unique network id to search for | |
1932 | * Returns: 0 on success, or -1 if the network was not found | |
1933 | */ | |
1934 | int wpa_config_remove_network(struct wpa_config *config, int id) | |
1935 | { | |
1936 | struct wpa_ssid *ssid, *prev = NULL; | |
1937 | ||
1938 | ssid = config->ssid; | |
1939 | while (ssid) { | |
1940 | if (id == ssid->id) | |
1941 | break; | |
1942 | prev = ssid; | |
1943 | ssid = ssid->next; | |
1944 | } | |
1945 | ||
1946 | if (ssid == NULL) | |
1947 | return -1; | |
1948 | ||
1949 | if (prev) | |
1950 | prev->next = ssid->next; | |
1951 | else | |
1952 | config->ssid = ssid->next; | |
1953 | ||
1954 | wpa_config_update_prio_list(config); | |
1955 | wpa_config_free_ssid(ssid); | |
1956 | return 0; | |
1957 | } | |
1958 | ||
1959 | ||
1960 | /** | |
1961 | * wpa_config_set_network_defaults - Set network default values | |
1962 | * @ssid: Pointer to network configuration data | |
1963 | */ | |
1964 | void wpa_config_set_network_defaults(struct wpa_ssid *ssid) | |
1965 | { | |
1966 | ssid->proto = DEFAULT_PROTO; | |
1967 | ssid->pairwise_cipher = DEFAULT_PAIRWISE; | |
1968 | ssid->group_cipher = DEFAULT_GROUP; | |
1969 | ssid->key_mgmt = DEFAULT_KEY_MGMT; | |
1970 | #ifdef IEEE8021X_EAPOL | |
1971 | ssid->eapol_flags = DEFAULT_EAPOL_FLAGS; | |
1972 | ssid->eap_workaround = DEFAULT_EAP_WORKAROUND; | |
1973 | ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE; | |
1974 | #endif /* IEEE8021X_EAPOL */ | |
80e8a5ee BG |
1975 | #ifdef CONFIG_HT_OVERRIDES |
1976 | ssid->disable_ht = DEFAULT_DISABLE_HT; | |
1977 | ssid->disable_ht40 = DEFAULT_DISABLE_HT40; | |
1978 | ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU; | |
1979 | ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR; | |
1980 | ssid->ampdu_density = DEFAULT_AMPDU_DENSITY; | |
1981 | #endif /* CONFIG_HT_OVERRIDES */ | |
6fc6879b JM |
1982 | } |
1983 | ||
1984 | ||
1985 | /** | |
1986 | * wpa_config_set - Set a variable in network configuration | |
1987 | * @ssid: Pointer to network configuration data | |
1988 | * @var: Variable name, e.g., "ssid" | |
1989 | * @value: Variable value | |
1990 | * @line: Line number in configuration file or 0 if not used | |
1991 | * Returns: 0 on success, -1 on failure | |
1992 | * | |
1993 | * This function can be used to set network configuration variables based on | |
1994 | * both the configuration file and management interface input. The value | |
1995 | * parameter must be in the same format as the text-based configuration file is | |
1996 | * using. For example, strings are using double quotation marks. | |
1997 | */ | |
1998 | int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value, | |
1999 | int line) | |
2000 | { | |
2001 | size_t i; | |
2002 | int ret = 0; | |
2003 | ||
2004 | if (ssid == NULL || var == NULL || value == NULL) | |
2005 | return -1; | |
2006 | ||
2007 | for (i = 0; i < NUM_SSID_FIELDS; i++) { | |
2008 | const struct parse_data *field = &ssid_fields[i]; | |
2009 | if (os_strcmp(var, field->name) != 0) | |
2010 | continue; | |
2011 | ||
2012 | if (field->parser(field, ssid, line, value)) { | |
2013 | if (line) { | |
2014 | wpa_printf(MSG_ERROR, "Line %d: failed to " | |
2015 | "parse %s '%s'.", line, var, value); | |
2016 | } | |
2017 | ret = -1; | |
2018 | } | |
2019 | break; | |
2020 | } | |
2021 | if (i == NUM_SSID_FIELDS) { | |
2022 | if (line) { | |
2023 | wpa_printf(MSG_ERROR, "Line %d: unknown network field " | |
2024 | "'%s'.", line, var); | |
2025 | } | |
2026 | ret = -1; | |
2027 | } | |
2028 | ||
2029 | return ret; | |
2030 | } | |
2031 | ||
2032 | ||
67e1b984 JM |
2033 | int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var, |
2034 | const char *value) | |
2035 | { | |
2036 | size_t len; | |
2037 | char *buf; | |
2038 | int ret; | |
2039 | ||
2040 | len = os_strlen(value); | |
2041 | buf = os_malloc(len + 3); | |
2042 | if (buf == NULL) | |
2043 | return -1; | |
2044 | buf[0] = '"'; | |
2045 | os_memcpy(buf + 1, value, len); | |
2046 | buf[len + 1] = '"'; | |
2047 | buf[len + 2] = '\0'; | |
2048 | ret = wpa_config_set(ssid, var, buf, 0); | |
2049 | os_free(buf); | |
2050 | return ret; | |
2051 | } | |
2052 | ||
2053 | ||
3d3d3056 WS |
2054 | /** |
2055 | * wpa_config_get_all - Get all options from network configuration | |
2056 | * @ssid: Pointer to network configuration data | |
2057 | * @get_keys: Determines if keys/passwords will be included in returned list | |
d1c8ac88 | 2058 | * (if they may be exported) |
3d3d3056 WS |
2059 | * Returns: %NULL terminated list of all set keys and their values in the form |
2060 | * of [key1, val1, key2, val2, ... , NULL] | |
2061 | * | |
2062 | * This function can be used to get list of all configured network properties. | |
2063 | * The caller is responsible for freeing the returned list and all its | |
2064 | * elements. | |
2065 | */ | |
2066 | char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys) | |
2067 | { | |
2068 | const struct parse_data *field; | |
2069 | char *key, *value; | |
2070 | size_t i; | |
2071 | char **props; | |
2072 | int fields_num; | |
2073 | ||
d1c8ac88 JB |
2074 | get_keys = get_keys && ssid->export_keys; |
2075 | ||
3d3d3056 WS |
2076 | props = os_zalloc(sizeof(char *) * ((2 * NUM_SSID_FIELDS) + 1)); |
2077 | if (!props) | |
2078 | return NULL; | |
2079 | ||
2080 | fields_num = 0; | |
2081 | for (i = 0; i < NUM_SSID_FIELDS; i++) { | |
2082 | field = &ssid_fields[i]; | |
2083 | if (field->key_data && !get_keys) | |
2084 | continue; | |
2085 | value = field->writer(field, ssid); | |
04746865 | 2086 | if (value == NULL) |
3d3d3056 | 2087 | continue; |
04746865 JM |
2088 | if (os_strlen(value) == 0) { |
2089 | os_free(value); | |
2090 | continue; | |
2091 | } | |
3d3d3056 WS |
2092 | |
2093 | key = os_strdup(field->name); | |
04746865 JM |
2094 | if (key == NULL) { |
2095 | os_free(value); | |
3d3d3056 | 2096 | goto err; |
04746865 | 2097 | } |
3d3d3056 WS |
2098 | |
2099 | props[fields_num * 2] = key; | |
2100 | props[fields_num * 2 + 1] = value; | |
2101 | ||
2102 | fields_num++; | |
2103 | } | |
2104 | ||
2105 | return props; | |
2106 | ||
2107 | err: | |
2108 | value = *props; | |
2109 | while (value) | |
2110 | os_free(value++); | |
2111 | os_free(props); | |
2112 | return NULL; | |
2113 | } | |
2114 | ||
2115 | ||
6fc6879b JM |
2116 | #ifndef NO_CONFIG_WRITE |
2117 | /** | |
2118 | * wpa_config_get - Get a variable in network configuration | |
2119 | * @ssid: Pointer to network configuration data | |
2120 | * @var: Variable name, e.g., "ssid" | |
2121 | * Returns: Value of the variable or %NULL on failure | |
2122 | * | |
2123 | * This function can be used to get network configuration variables. The | |
2124 | * returned value is a copy of the configuration variable in text format, i.e,. | |
2125 | * the same format that the text-based configuration file and wpa_config_set() | |
2126 | * are using for the value. The caller is responsible for freeing the returned | |
2127 | * value. | |
2128 | */ | |
2129 | char * wpa_config_get(struct wpa_ssid *ssid, const char *var) | |
2130 | { | |
2131 | size_t i; | |
2132 | ||
2133 | if (ssid == NULL || var == NULL) | |
2134 | return NULL; | |
2135 | ||
2136 | for (i = 0; i < NUM_SSID_FIELDS; i++) { | |
2137 | const struct parse_data *field = &ssid_fields[i]; | |
2138 | if (os_strcmp(var, field->name) == 0) | |
2139 | return field->writer(field, ssid); | |
2140 | } | |
2141 | ||
2142 | return NULL; | |
2143 | } | |
2144 | ||
2145 | ||
2146 | /** | |
2147 | * wpa_config_get_no_key - Get a variable in network configuration (no keys) | |
2148 | * @ssid: Pointer to network configuration data | |
2149 | * @var: Variable name, e.g., "ssid" | |
2150 | * Returns: Value of the variable or %NULL on failure | |
2151 | * | |
2152 | * This function can be used to get network configuration variable like | |
2153 | * wpa_config_get(). The only difference is that this functions does not expose | |
2154 | * key/password material from the configuration. In case a key/password field | |
2155 | * is requested, the returned value is an empty string or %NULL if the variable | |
2156 | * is not set or "*" if the variable is set (regardless of its value). The | |
2157 | * returned value is a copy of the configuration variable in text format, i.e,. | |
2158 | * the same format that the text-based configuration file and wpa_config_set() | |
2159 | * are using for the value. The caller is responsible for freeing the returned | |
2160 | * value. | |
2161 | */ | |
2162 | char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var) | |
2163 | { | |
2164 | size_t i; | |
2165 | ||
2166 | if (ssid == NULL || var == NULL) | |
2167 | return NULL; | |
2168 | ||
2169 | for (i = 0; i < NUM_SSID_FIELDS; i++) { | |
2170 | const struct parse_data *field = &ssid_fields[i]; | |
2171 | if (os_strcmp(var, field->name) == 0) { | |
2172 | char *res = field->writer(field, ssid); | |
2173 | if (field->key_data) { | |
2174 | if (res && res[0]) { | |
2175 | wpa_printf(MSG_DEBUG, "Do not allow " | |
2176 | "key_data field to be " | |
2177 | "exposed"); | |
2178 | os_free(res); | |
2179 | return os_strdup("*"); | |
2180 | } | |
2181 | ||
2182 | os_free(res); | |
2183 | return NULL; | |
2184 | } | |
2185 | return res; | |
2186 | } | |
2187 | } | |
2188 | ||
2189 | return NULL; | |
2190 | } | |
2191 | #endif /* NO_CONFIG_WRITE */ | |
2192 | ||
2193 | ||
2194 | /** | |
2195 | * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID | |
2196 | * @ssid: Pointer to network configuration data | |
2197 | * | |
2198 | * This function must be called to update WPA PSK when either SSID or the | |
2199 | * passphrase has changed for the network configuration. | |
2200 | */ | |
2201 | void wpa_config_update_psk(struct wpa_ssid *ssid) | |
2202 | { | |
2203 | #ifndef CONFIG_NO_PBKDF2 | |
2204 | pbkdf2_sha1(ssid->passphrase, | |
2205 | (char *) ssid->ssid, ssid->ssid_len, 4096, | |
2206 | ssid->psk, PMK_LEN); | |
2207 | wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", | |
2208 | ssid->psk, PMK_LEN); | |
2209 | ssid->psk_set = 1; | |
2210 | #endif /* CONFIG_NO_PBKDF2 */ | |
2211 | } | |
2212 | ||
2213 | ||
1bb7b8e8 JM |
2214 | int wpa_config_set_cred(struct wpa_cred *cred, const char *var, |
2215 | const char *value, int line) | |
2216 | { | |
2217 | char *val; | |
2218 | size_t len; | |
2219 | ||
2220 | val = wpa_config_parse_string(value, &len); | |
2221 | if (val == NULL) | |
2222 | return -1; | |
2223 | ||
2224 | if (os_strcmp(var, "realm") == 0) { | |
2225 | os_free(cred->realm); | |
2226 | cred->realm = val; | |
2227 | return 0; | |
2228 | } | |
2229 | ||
2230 | if (os_strcmp(var, "username") == 0) { | |
2231 | os_free(cred->username); | |
2232 | cred->username = val; | |
2233 | return 0; | |
2234 | } | |
2235 | ||
2236 | if (os_strcmp(var, "password") == 0) { | |
2237 | os_free(cred->password); | |
2238 | cred->password = val; | |
2239 | return 0; | |
2240 | } | |
2241 | ||
2242 | if (os_strcmp(var, "ca_cert") == 0) { | |
2243 | os_free(cred->ca_cert); | |
2244 | cred->ca_cert = val; | |
2245 | return 0; | |
2246 | } | |
2247 | ||
2248 | if (os_strcmp(var, "imsi") == 0) { | |
2249 | os_free(cred->imsi); | |
2250 | cred->imsi = val; | |
2251 | return 0; | |
2252 | } | |
2253 | ||
2254 | if (os_strcmp(var, "milenage") == 0) { | |
2255 | os_free(cred->milenage); | |
2256 | cred->milenage = val; | |
2257 | return 0; | |
2258 | } | |
2259 | ||
2260 | if (os_strcmp(var, "domain") == 0) { | |
2261 | os_free(cred->domain); | |
2262 | cred->domain = val; | |
2263 | return 0; | |
2264 | } | |
2265 | ||
2266 | if (line) { | |
2267 | wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.", | |
2268 | line, var); | |
2269 | } | |
2270 | ||
2271 | return -1; | |
2272 | } | |
2273 | ||
2274 | ||
d94c9ee6 JM |
2275 | struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id) |
2276 | { | |
2277 | struct wpa_cred *cred; | |
2278 | ||
2279 | cred = config->cred; | |
2280 | while (cred) { | |
2281 | if (id == cred->id) | |
2282 | break; | |
2283 | cred = cred->next; | |
2284 | } | |
2285 | ||
2286 | return cred; | |
2287 | } | |
2288 | ||
2289 | ||
2290 | struct wpa_cred * wpa_config_add_cred(struct wpa_config *config) | |
2291 | { | |
2292 | int id; | |
2293 | struct wpa_cred *cred, *last = NULL; | |
2294 | ||
2295 | id = -1; | |
2296 | cred = config->cred; | |
2297 | while (cred) { | |
2298 | if (cred->id > id) | |
2299 | id = cred->id; | |
2300 | last = cred; | |
2301 | cred = cred->next; | |
2302 | } | |
2303 | id++; | |
2304 | ||
2305 | cred = os_zalloc(sizeof(*cred)); | |
2306 | if (cred == NULL) | |
2307 | return NULL; | |
2308 | cred->id = id; | |
2309 | if (last) | |
2310 | last->next = cred; | |
2311 | else | |
2312 | config->cred = cred; | |
2313 | ||
2314 | return cred; | |
2315 | } | |
2316 | ||
2317 | ||
2318 | int wpa_config_remove_cred(struct wpa_config *config, int id) | |
2319 | { | |
2320 | struct wpa_cred *cred, *prev = NULL; | |
2321 | ||
2322 | cred = config->cred; | |
2323 | while (cred) { | |
2324 | if (id == cred->id) | |
2325 | break; | |
2326 | prev = cred; | |
2327 | cred = cred->next; | |
2328 | } | |
2329 | ||
2330 | if (cred == NULL) | |
2331 | return -1; | |
2332 | ||
2333 | if (prev) | |
2334 | prev->next = cred->next; | |
2335 | else | |
2336 | config->cred = cred->next; | |
2337 | ||
2338 | wpa_config_free_cred(cred); | |
2339 | return 0; | |
2340 | } | |
2341 | ||
2342 | ||
6fc6879b JM |
2343 | #ifndef CONFIG_NO_CONFIG_BLOBS |
2344 | /** | |
2345 | * wpa_config_get_blob - Get a named configuration blob | |
2346 | * @config: Configuration data from wpa_config_read() | |
2347 | * @name: Name of the blob | |
2348 | * Returns: Pointer to blob data or %NULL if not found | |
2349 | */ | |
2350 | const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config, | |
2351 | const char *name) | |
2352 | { | |
2353 | struct wpa_config_blob *blob = config->blobs; | |
2354 | ||
2355 | while (blob) { | |
2356 | if (os_strcmp(blob->name, name) == 0) | |
2357 | return blob; | |
2358 | blob = blob->next; | |
2359 | } | |
2360 | return NULL; | |
2361 | } | |
2362 | ||
2363 | ||
2364 | /** | |
2365 | * wpa_config_set_blob - Set or add a named configuration blob | |
2366 | * @config: Configuration data from wpa_config_read() | |
2367 | * @blob: New value for the blob | |
2368 | * | |
2369 | * Adds a new configuration blob or replaces the current value of an existing | |
2370 | * blob. | |
2371 | */ | |
2372 | void wpa_config_set_blob(struct wpa_config *config, | |
2373 | struct wpa_config_blob *blob) | |
2374 | { | |
2375 | wpa_config_remove_blob(config, blob->name); | |
2376 | blob->next = config->blobs; | |
2377 | config->blobs = blob; | |
2378 | } | |
2379 | ||
2380 | ||
2381 | /** | |
2382 | * wpa_config_free_blob - Free blob data | |
2383 | * @blob: Pointer to blob to be freed | |
2384 | */ | |
2385 | void wpa_config_free_blob(struct wpa_config_blob *blob) | |
2386 | { | |
2387 | if (blob) { | |
2388 | os_free(blob->name); | |
2389 | os_free(blob->data); | |
2390 | os_free(blob); | |
2391 | } | |
2392 | } | |
2393 | ||
2394 | ||
2395 | /** | |
2396 | * wpa_config_remove_blob - Remove a named configuration blob | |
2397 | * @config: Configuration data from wpa_config_read() | |
2398 | * @name: Name of the blob to remove | |
2399 | * Returns: 0 if blob was removed or -1 if blob was not found | |
2400 | */ | |
2401 | int wpa_config_remove_blob(struct wpa_config *config, const char *name) | |
2402 | { | |
2403 | struct wpa_config_blob *pos = config->blobs, *prev = NULL; | |
2404 | ||
2405 | while (pos) { | |
2406 | if (os_strcmp(pos->name, name) == 0) { | |
2407 | if (prev) | |
2408 | prev->next = pos->next; | |
2409 | else | |
2410 | config->blobs = pos->next; | |
2411 | wpa_config_free_blob(pos); | |
2412 | return 0; | |
2413 | } | |
2414 | prev = pos; | |
2415 | pos = pos->next; | |
2416 | } | |
2417 | ||
2418 | return -1; | |
2419 | } | |
2420 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
2421 | ||
2422 | ||
2423 | /** | |
2424 | * wpa_config_alloc_empty - Allocate an empty configuration | |
2425 | * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain | |
2426 | * socket | |
2427 | * @driver_param: Driver parameters | |
2428 | * Returns: Pointer to allocated configuration data or %NULL on failure | |
2429 | */ | |
2430 | struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface, | |
2431 | const char *driver_param) | |
2432 | { | |
2433 | struct wpa_config *config; | |
2434 | ||
2435 | config = os_zalloc(sizeof(*config)); | |
2436 | if (config == NULL) | |
2437 | return NULL; | |
2438 | config->eapol_version = DEFAULT_EAPOL_VERSION; | |
2439 | config->ap_scan = DEFAULT_AP_SCAN; | |
2440 | config->fast_reauth = DEFAULT_FAST_REAUTH; | |
e3768e7c | 2441 | config->p2p_go_intent = DEFAULT_P2P_GO_INTENT; |
0f66abd2 | 2442 | config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS; |
c9c38b09 | 2443 | config->bss_max_count = DEFAULT_BSS_MAX_COUNT; |
78633c37 SL |
2444 | config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE; |
2445 | config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT; | |
dae608d5 | 2446 | config->max_num_sta = DEFAULT_MAX_NUM_STA; |
11540c0b | 2447 | config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE; |
6fc6879b JM |
2448 | |
2449 | if (ctrl_interface) | |
2450 | config->ctrl_interface = os_strdup(ctrl_interface); | |
2451 | if (driver_param) | |
2452 | config->driver_param = os_strdup(driver_param); | |
2453 | ||
2454 | return config; | |
2455 | } | |
2456 | ||
2457 | ||
2458 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
2459 | /** | |
2460 | * wpa_config_debug_dump_networks - Debug dump of configured networks | |
2461 | * @config: Configuration data from wpa_config_read() | |
2462 | */ | |
2463 | void wpa_config_debug_dump_networks(struct wpa_config *config) | |
2464 | { | |
2465 | int prio; | |
2466 | struct wpa_ssid *ssid; | |
2467 | ||
2468 | for (prio = 0; prio < config->num_prio; prio++) { | |
2469 | ssid = config->pssid[prio]; | |
2470 | wpa_printf(MSG_DEBUG, "Priority group %d", | |
2471 | ssid->priority); | |
2472 | while (ssid) { | |
2473 | wpa_printf(MSG_DEBUG, " id=%d ssid='%s'", | |
2474 | ssid->id, | |
2475 | wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); | |
2476 | ssid = ssid->pnext; | |
2477 | } | |
2478 | } | |
2479 | } | |
2480 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
121adf9c JM |
2481 | |
2482 | ||
2483 | struct global_parse_data { | |
2484 | char *name; | |
2485 | int (*parser)(const struct global_parse_data *data, | |
2486 | struct wpa_config *config, int line, const char *value); | |
2487 | void *param1, *param2, *param3; | |
1d47214a | 2488 | unsigned int changed_flag; |
121adf9c JM |
2489 | }; |
2490 | ||
2491 | ||
2492 | static int wpa_global_config_parse_int(const struct global_parse_data *data, | |
2493 | struct wpa_config *config, int line, | |
2494 | const char *pos) | |
2495 | { | |
2496 | int *dst; | |
2497 | dst = (int *) (((u8 *) config) + (long) data->param1); | |
2498 | *dst = atoi(pos); | |
2499 | wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst); | |
2500 | ||
2501 | if (data->param2 && *dst < (long) data->param2) { | |
2502 | wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d " | |
2503 | "min_value=%ld)", line, data->name, *dst, | |
2504 | (long) data->param2); | |
2505 | *dst = (long) data->param2; | |
2506 | return -1; | |
2507 | } | |
2508 | ||
2509 | if (data->param3 && *dst > (long) data->param3) { | |
2510 | wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d " | |
2511 | "max_value=%ld)", line, data->name, *dst, | |
2512 | (long) data->param3); | |
2513 | *dst = (long) data->param3; | |
2514 | return -1; | |
2515 | } | |
2516 | ||
2517 | return 0; | |
2518 | } | |
2519 | ||
2520 | ||
2521 | static int wpa_global_config_parse_str(const struct global_parse_data *data, | |
2522 | struct wpa_config *config, int line, | |
2523 | const char *pos) | |
2524 | { | |
2525 | size_t len; | |
2526 | char **dst, *tmp; | |
2527 | ||
2528 | len = os_strlen(pos); | |
2529 | if (data->param2 && len < (size_t) data->param2) { | |
2530 | wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu " | |
2531 | "min_len=%ld)", line, data->name, | |
2532 | (unsigned long) len, (long) data->param2); | |
2533 | return -1; | |
2534 | } | |
2535 | ||
2536 | if (data->param3 && len > (size_t) data->param3) { | |
2537 | wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu " | |
2538 | "max_len=%ld)", line, data->name, | |
2539 | (unsigned long) len, (long) data->param3); | |
2540 | return -1; | |
2541 | } | |
2542 | ||
2543 | tmp = os_strdup(pos); | |
2544 | if (tmp == NULL) | |
2545 | return -1; | |
2546 | ||
2547 | dst = (char **) (((u8 *) config) + (long) data->param1); | |
2548 | os_free(*dst); | |
2549 | *dst = tmp; | |
2550 | wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst); | |
2551 | ||
2552 | return 0; | |
2553 | } | |
2554 | ||
2555 | ||
2556 | static int wpa_config_process_country(const struct global_parse_data *data, | |
2557 | struct wpa_config *config, int line, | |
2558 | const char *pos) | |
2559 | { | |
2560 | if (!pos[0] || !pos[1]) { | |
2561 | wpa_printf(MSG_DEBUG, "Invalid country set"); | |
2562 | return -1; | |
2563 | } | |
2564 | config->country[0] = pos[0]; | |
2565 | config->country[1] = pos[1]; | |
2566 | wpa_printf(MSG_DEBUG, "country='%c%c'", | |
2567 | config->country[0], config->country[1]); | |
2568 | return 0; | |
2569 | } | |
2570 | ||
2571 | ||
2572 | static int wpa_config_process_load_dynamic_eap( | |
2573 | const struct global_parse_data *data, struct wpa_config *config, | |
2574 | int line, const char *so) | |
2575 | { | |
2576 | int ret; | |
2577 | wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so); | |
2578 | ret = eap_peer_method_load(so); | |
2579 | if (ret == -2) { | |
2580 | wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not " | |
2581 | "reloading."); | |
2582 | } else if (ret) { | |
2583 | wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP " | |
2584 | "method '%s'.", line, so); | |
2585 | return -1; | |
2586 | } | |
2587 | ||
2588 | return 0; | |
2589 | } | |
2590 | ||
2591 | ||
2592 | #ifdef CONFIG_WPS | |
2593 | ||
2594 | static int wpa_config_process_uuid(const struct global_parse_data *data, | |
2595 | struct wpa_config *config, int line, | |
2596 | const char *pos) | |
2597 | { | |
2598 | char buf[40]; | |
2599 | if (uuid_str2bin(pos, config->uuid)) { | |
2600 | wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line); | |
2601 | return -1; | |
2602 | } | |
2603 | uuid_bin2str(config->uuid, buf, sizeof(buf)); | |
2604 | wpa_printf(MSG_DEBUG, "uuid=%s", buf); | |
2605 | return 0; | |
2606 | } | |
2607 | ||
2608 | ||
2f646b6e JB |
2609 | static int wpa_config_process_device_type( |
2610 | const struct global_parse_data *data, | |
2611 | struct wpa_config *config, int line, const char *pos) | |
2612 | { | |
2613 | return wps_dev_type_str2bin(pos, config->device_type); | |
2614 | } | |
2615 | ||
2616 | ||
121adf9c JM |
2617 | static int wpa_config_process_os_version(const struct global_parse_data *data, |
2618 | struct wpa_config *config, int line, | |
2619 | const char *pos) | |
2620 | { | |
2621 | if (hexstr2bin(pos, config->os_version, 4)) { | |
2622 | wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line); | |
2623 | return -1; | |
2624 | } | |
2625 | wpa_printf(MSG_DEBUG, "os_version=%08x", | |
2626 | WPA_GET_BE32(config->os_version)); | |
2627 | return 0; | |
2628 | } | |
2629 | ||
2630 | #endif /* CONFIG_WPS */ | |
2631 | ||
e3768e7c JM |
2632 | #ifdef CONFIG_P2P |
2633 | static int wpa_config_process_sec_device_type( | |
2634 | const struct global_parse_data *data, | |
2635 | struct wpa_config *config, int line, const char *pos) | |
2636 | { | |
2637 | int idx; | |
2638 | ||
2f646b6e | 2639 | if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) { |
e3768e7c JM |
2640 | wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type " |
2641 | "items", line); | |
2642 | return -1; | |
2643 | } | |
2644 | ||
2f646b6e JB |
2645 | idx = config->num_sec_device_types; |
2646 | ||
2647 | if (wps_dev_type_str2bin(pos, config->sec_device_type[idx])) | |
e3768e7c | 2648 | return -1; |
2f646b6e JB |
2649 | |
2650 | config->num_sec_device_types++; | |
e3768e7c JM |
2651 | return 0; |
2652 | } | |
2653 | #endif /* CONFIG_P2P */ | |
2654 | ||
121adf9c | 2655 | |
46ee0427 JM |
2656 | static int wpa_config_process_hessid( |
2657 | const struct global_parse_data *data, | |
2658 | struct wpa_config *config, int line, const char *pos) | |
2659 | { | |
2660 | if (hwaddr_aton2(pos, config->hessid) < 0) { | |
2661 | wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'", | |
2662 | line, pos); | |
2663 | return -1; | |
2664 | } | |
2665 | ||
2666 | return 0; | |
2667 | } | |
2668 | ||
2669 | ||
121adf9c JM |
2670 | #ifdef OFFSET |
2671 | #undef OFFSET | |
2672 | #endif /* OFFSET */ | |
2673 | /* OFFSET: Get offset of a variable within the wpa_config structure */ | |
2674 | #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v) | |
2675 | ||
2676 | #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL | |
2677 | #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL | |
2678 | #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f) | |
2679 | #define INT(f) _INT(f), NULL, NULL | |
2680 | #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max | |
2681 | #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f) | |
2682 | #define STR(f) _STR(f), NULL, NULL | |
2683 | #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max | |
2684 | ||
2685 | static const struct global_parse_data global_fields[] = { | |
2686 | #ifdef CONFIG_CTRL_IFACE | |
1d47214a JM |
2687 | { STR(ctrl_interface), 0 }, |
2688 | { STR(ctrl_interface_group), 0 } /* deprecated */, | |
121adf9c | 2689 | #endif /* CONFIG_CTRL_IFACE */ |
1d47214a JM |
2690 | { INT_RANGE(eapol_version, 1, 2), 0 }, |
2691 | { INT(ap_scan), 0 }, | |
2692 | { INT(fast_reauth), 0 }, | |
2693 | { STR(opensc_engine_path), 0 }, | |
2694 | { STR(pkcs11_engine_path), 0 }, | |
2695 | { STR(pkcs11_module_path), 0 }, | |
2696 | { STR(driver_param), 0 }, | |
2697 | { INT(dot11RSNAConfigPMKLifetime), 0 }, | |
2698 | { INT(dot11RSNAConfigPMKReauthThreshold), 0 }, | |
2699 | { INT(dot11RSNAConfigSATimeout), 0 }, | |
121adf9c | 2700 | #ifndef CONFIG_NO_CONFIG_WRITE |
1d47214a | 2701 | { INT(update_config), 0 }, |
121adf9c | 2702 | #endif /* CONFIG_NO_CONFIG_WRITE */ |
1d47214a | 2703 | { FUNC_NO_VAR(load_dynamic_eap), 0 }, |
121adf9c | 2704 | #ifdef CONFIG_WPS |
1d47214a JM |
2705 | { FUNC(uuid), CFG_CHANGED_UUID }, |
2706 | { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME }, | |
1c9cb49f JM |
2707 | { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING }, |
2708 | { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING }, | |
2709 | { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING }, | |
2710 | { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING }, | |
2f646b6e | 2711 | { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE }, |
1d47214a JM |
2712 | { FUNC(os_version), CFG_CHANGED_OS_VERSION }, |
2713 | { STR(config_methods), CFG_CHANGED_CONFIG_METHODS }, | |
2714 | { INT_RANGE(wps_cred_processing, 0, 2), 0 }, | |
121adf9c | 2715 | #endif /* CONFIG_WPS */ |
e3768e7c JM |
2716 | #ifdef CONFIG_P2P |
2717 | { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE }, | |
2718 | { INT(p2p_listen_reg_class), 0 }, | |
2719 | { INT(p2p_listen_channel), 0 }, | |
2720 | { INT(p2p_oper_reg_class), 0 }, | |
2721 | { INT(p2p_oper_channel), 0 }, | |
2722 | { INT_RANGE(p2p_go_intent, 0, 15), 0 }, | |
2723 | { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX }, | |
2724 | { INT_RANGE(persistent_reconnect, 0, 1), 0 }, | |
0f66abd2 | 2725 | { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS }, |
3071e181 | 2726 | { INT(p2p_group_idle), 0 }, |
e3768e7c | 2727 | #endif /* CONFIG_P2P */ |
1d47214a JM |
2728 | { FUNC(country), CFG_CHANGED_COUNTRY }, |
2729 | { INT(bss_max_count), 0 }, | |
78633c37 SL |
2730 | { INT(bss_expiration_age), 0 }, |
2731 | { INT(bss_expiration_scan_count), 0 }, | |
dae608d5 | 2732 | { INT_RANGE(filter_ssids, 0, 1), 0 }, |
0d7e5a3a | 2733 | { INT(max_num_sta), 0 }, |
46ee0427 JM |
2734 | { INT_RANGE(disassoc_low_ack, 0, 1), 0 }, |
2735 | { INT_RANGE(interworking, 0, 1), 0 }, | |
11540c0b JM |
2736 | { FUNC(hessid), 0 }, |
2737 | { INT_RANGE(access_network_type, 0, 15), 0 } | |
121adf9c JM |
2738 | }; |
2739 | ||
2740 | #undef FUNC | |
2741 | #undef _INT | |
2742 | #undef INT | |
2743 | #undef INT_RANGE | |
2744 | #undef _STR | |
2745 | #undef STR | |
2746 | #undef STR_RANGE | |
2747 | #define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0])) | |
2748 | ||
2749 | ||
2750 | int wpa_config_process_global(struct wpa_config *config, char *pos, int line) | |
2751 | { | |
2752 | size_t i; | |
2753 | int ret = 0; | |
2754 | ||
2755 | for (i = 0; i < NUM_GLOBAL_FIELDS; i++) { | |
2756 | const struct global_parse_data *field = &global_fields[i]; | |
2757 | size_t flen = os_strlen(field->name); | |
2758 | if (os_strncmp(pos, field->name, flen) != 0 || | |
2759 | pos[flen] != '=') | |
2760 | continue; | |
2761 | ||
2762 | if (field->parser(field, config, line, pos + flen + 1)) { | |
2763 | wpa_printf(MSG_ERROR, "Line %d: failed to " | |
2764 | "parse '%s'.", line, pos); | |
2765 | ret = -1; | |
2766 | } | |
1d47214a | 2767 | config->changed_parameters |= field->changed_flag; |
121adf9c JM |
2768 | break; |
2769 | } | |
2770 | if (i == NUM_GLOBAL_FIELDS) { | |
1d47214a JM |
2771 | if (line < 0) |
2772 | return -1; | |
121adf9c JM |
2773 | wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.", |
2774 | line, pos); | |
2775 | ret = -1; | |
2776 | } | |
2777 | ||
2778 | return ret; | |
2779 | } |