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Commit | Line | Data |
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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant / Configuration backend: text file | |
f64adcd7 | 3 | * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> |
6fc6879b | 4 | * |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
6fc6879b JM |
7 | * |
8 | * This file implements a configuration backend for text files. All the | |
9 | * configuration information is stored in a text file that uses a format | |
10 | * described in the sample configuration file, wpa_supplicant.conf. | |
11 | */ | |
12 | ||
13 | #include "includes.h" | |
14 | ||
15 | #include "common.h" | |
16 | #include "config.h" | |
17 | #include "base64.h" | |
f855f923 | 18 | #include "uuid.h" |
21d996f7 | 19 | #include "p2p/p2p.h" |
9aae09f1 JM |
20 | #include "eap_peer/eap_methods.h" |
21 | #include "eap_peer/eap.h" | |
6fc6879b JM |
22 | |
23 | ||
d42bc5e1 JM |
24 | static int newline_terminated(const char *buf, size_t buflen) |
25 | { | |
26 | size_t len = os_strlen(buf); | |
27 | if (len == 0) | |
28 | return 0; | |
29 | if (len == buflen - 1 && buf[buflen - 1] != '\r' && | |
30 | buf[len - 1] != '\n') | |
31 | return 0; | |
32 | return 1; | |
33 | } | |
34 | ||
35 | ||
36 | static void skip_line_end(FILE *stream) | |
37 | { | |
38 | char buf[100]; | |
39 | while (fgets(buf, sizeof(buf), stream)) { | |
40 | buf[sizeof(buf) - 1] = '\0'; | |
41 | if (newline_terminated(buf, sizeof(buf))) | |
42 | return; | |
43 | } | |
44 | } | |
45 | ||
46 | ||
6fc6879b JM |
47 | /** |
48 | * wpa_config_get_line - Read the next configuration file line | |
49 | * @s: Buffer for the line | |
50 | * @size: The buffer length | |
51 | * @stream: File stream to read from | |
52 | * @line: Pointer to a variable storing the file line number | |
53 | * @_pos: Buffer for the pointer to the beginning of data on the text line or | |
54 | * %NULL if not needed (returned value used instead) | |
55 | * Returns: Pointer to the beginning of data on the text line or %NULL if no | |
56 | * more text lines are available. | |
57 | * | |
58 | * This function reads the next non-empty line from the configuration file and | |
59 | * removes comments. The returned string is guaranteed to be null-terminated. | |
60 | */ | |
61 | static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line, | |
62 | char **_pos) | |
63 | { | |
64 | char *pos, *end, *sstart; | |
65 | ||
66 | while (fgets(s, size, stream)) { | |
67 | (*line)++; | |
68 | s[size - 1] = '\0'; | |
d42bc5e1 JM |
69 | if (!newline_terminated(s, size)) { |
70 | /* | |
71 | * The line was truncated - skip rest of it to avoid | |
72 | * confusing error messages. | |
73 | */ | |
74 | wpa_printf(MSG_INFO, "Long line in configuration file " | |
75 | "truncated"); | |
76 | skip_line_end(stream); | |
77 | } | |
6fc6879b JM |
78 | pos = s; |
79 | ||
80 | /* Skip white space from the beginning of line. */ | |
81 | while (*pos == ' ' || *pos == '\t' || *pos == '\r') | |
82 | pos++; | |
83 | ||
84 | /* Skip comment lines and empty lines */ | |
85 | if (*pos == '#' || *pos == '\n' || *pos == '\0') | |
86 | continue; | |
87 | ||
88 | /* | |
89 | * Remove # comments unless they are within a double quoted | |
90 | * string. | |
91 | */ | |
92 | sstart = os_strchr(pos, '"'); | |
93 | if (sstart) | |
94 | sstart = os_strrchr(sstart + 1, '"'); | |
95 | if (!sstart) | |
96 | sstart = pos; | |
97 | end = os_strchr(sstart, '#'); | |
98 | if (end) | |
99 | *end-- = '\0'; | |
100 | else | |
101 | end = pos + os_strlen(pos) - 1; | |
102 | ||
103 | /* Remove trailing white space. */ | |
104 | while (end > pos && | |
105 | (*end == '\n' || *end == ' ' || *end == '\t' || | |
106 | *end == '\r')) | |
107 | *end-- = '\0'; | |
108 | ||
109 | if (*pos == '\0') | |
110 | continue; | |
111 | ||
112 | if (_pos) | |
113 | *_pos = pos; | |
114 | return pos; | |
115 | } | |
116 | ||
117 | if (_pos) | |
118 | *_pos = NULL; | |
119 | return NULL; | |
120 | } | |
121 | ||
122 | ||
123 | static int wpa_config_validate_network(struct wpa_ssid *ssid, int line) | |
124 | { | |
125 | int errors = 0; | |
126 | ||
127 | if (ssid->passphrase) { | |
128 | if (ssid->psk_set) { | |
129 | wpa_printf(MSG_ERROR, "Line %d: both PSK and " | |
130 | "passphrase configured.", line); | |
131 | errors++; | |
132 | } | |
133 | wpa_config_update_psk(ssid); | |
134 | } | |
135 | ||
6fc6879b JM |
136 | if ((ssid->group_cipher & WPA_CIPHER_CCMP) && |
137 | !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) && | |
138 | !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) { | |
139 | /* Group cipher cannot be stronger than the pairwise cipher. */ | |
140 | wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher" | |
141 | " list since it was not allowed for pairwise " | |
142 | "cipher", line); | |
143 | ssid->group_cipher &= ~WPA_CIPHER_CCMP; | |
144 | } | |
145 | ||
146 | return errors; | |
147 | } | |
148 | ||
149 | ||
150 | static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id) | |
151 | { | |
152 | struct wpa_ssid *ssid; | |
153 | int errors = 0, end = 0; | |
d42bc5e1 | 154 | char buf[2000], *pos, *pos2; |
6fc6879b JM |
155 | |
156 | wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block", | |
157 | *line); | |
158 | ssid = os_zalloc(sizeof(*ssid)); | |
159 | if (ssid == NULL) | |
160 | return NULL; | |
161 | ssid->id = id; | |
162 | ||
163 | wpa_config_set_network_defaults(ssid); | |
164 | ||
165 | while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) { | |
166 | if (os_strcmp(pos, "}") == 0) { | |
167 | end = 1; | |
168 | break; | |
169 | } | |
170 | ||
171 | pos2 = os_strchr(pos, '='); | |
172 | if (pos2 == NULL) { | |
173 | wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line " | |
174 | "'%s'.", *line, pos); | |
175 | errors++; | |
176 | continue; | |
177 | } | |
178 | ||
179 | *pos2++ = '\0'; | |
180 | if (*pos2 == '"') { | |
181 | if (os_strchr(pos2 + 1, '"') == NULL) { | |
182 | wpa_printf(MSG_ERROR, "Line %d: invalid " | |
183 | "quotation '%s'.", *line, pos2); | |
184 | errors++; | |
185 | continue; | |
186 | } | |
187 | } | |
188 | ||
189 | if (wpa_config_set(ssid, pos, pos2, *line) < 0) | |
190 | errors++; | |
191 | } | |
192 | ||
193 | if (!end) { | |
194 | wpa_printf(MSG_ERROR, "Line %d: network block was not " | |
195 | "terminated properly.", *line); | |
196 | errors++; | |
197 | } | |
198 | ||
199 | errors += wpa_config_validate_network(ssid, *line); | |
200 | ||
201 | if (errors) { | |
202 | wpa_config_free_ssid(ssid); | |
203 | ssid = NULL; | |
204 | } | |
205 | ||
206 | return ssid; | |
207 | } | |
208 | ||
209 | ||
1bb7b8e8 JM |
210 | static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id) |
211 | { | |
212 | struct wpa_cred *cred; | |
213 | int errors = 0, end = 0; | |
214 | char buf[256], *pos, *pos2; | |
215 | ||
216 | wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line); | |
217 | cred = os_zalloc(sizeof(*cred)); | |
218 | if (cred == NULL) | |
219 | return NULL; | |
220 | cred->id = id; | |
221 | ||
222 | while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) { | |
223 | if (os_strcmp(pos, "}") == 0) { | |
224 | end = 1; | |
225 | break; | |
226 | } | |
227 | ||
228 | pos2 = os_strchr(pos, '='); | |
229 | if (pos2 == NULL) { | |
230 | wpa_printf(MSG_ERROR, "Line %d: Invalid cred line " | |
231 | "'%s'.", *line, pos); | |
232 | errors++; | |
233 | continue; | |
234 | } | |
235 | ||
236 | *pos2++ = '\0'; | |
237 | if (*pos2 == '"') { | |
238 | if (os_strchr(pos2 + 1, '"') == NULL) { | |
239 | wpa_printf(MSG_ERROR, "Line %d: invalid " | |
240 | "quotation '%s'.", *line, pos2); | |
241 | errors++; | |
242 | continue; | |
243 | } | |
244 | } | |
245 | ||
246 | if (wpa_config_set_cred(cred, pos, pos2, *line) < 0) | |
247 | errors++; | |
248 | } | |
249 | ||
250 | if (!end) { | |
251 | wpa_printf(MSG_ERROR, "Line %d: cred block was not " | |
252 | "terminated properly.", *line); | |
253 | errors++; | |
254 | } | |
255 | ||
256 | if (errors) { | |
257 | wpa_config_free_cred(cred); | |
258 | cred = NULL; | |
259 | } | |
260 | ||
261 | return cred; | |
262 | } | |
263 | ||
264 | ||
6fc6879b JM |
265 | #ifndef CONFIG_NO_CONFIG_BLOBS |
266 | static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line, | |
267 | const char *name) | |
268 | { | |
269 | struct wpa_config_blob *blob; | |
270 | char buf[256], *pos; | |
271 | unsigned char *encoded = NULL, *nencoded; | |
272 | int end = 0; | |
273 | size_t encoded_len = 0, len; | |
274 | ||
275 | wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'", | |
276 | *line, name); | |
277 | ||
278 | while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) { | |
279 | if (os_strcmp(pos, "}") == 0) { | |
280 | end = 1; | |
281 | break; | |
282 | } | |
283 | ||
284 | len = os_strlen(pos); | |
285 | nencoded = os_realloc(encoded, encoded_len + len); | |
286 | if (nencoded == NULL) { | |
287 | wpa_printf(MSG_ERROR, "Line %d: not enough memory for " | |
288 | "blob", *line); | |
289 | os_free(encoded); | |
290 | return NULL; | |
291 | } | |
292 | encoded = nencoded; | |
293 | os_memcpy(encoded + encoded_len, pos, len); | |
294 | encoded_len += len; | |
295 | } | |
296 | ||
297 | if (!end) { | |
298 | wpa_printf(MSG_ERROR, "Line %d: blob was not terminated " | |
299 | "properly", *line); | |
300 | os_free(encoded); | |
301 | return NULL; | |
302 | } | |
303 | ||
304 | blob = os_zalloc(sizeof(*blob)); | |
305 | if (blob == NULL) { | |
306 | os_free(encoded); | |
307 | return NULL; | |
308 | } | |
309 | blob->name = os_strdup(name); | |
310 | blob->data = base64_decode(encoded, encoded_len, &blob->len); | |
311 | os_free(encoded); | |
312 | ||
313 | if (blob->name == NULL || blob->data == NULL) { | |
314 | wpa_config_free_blob(blob); | |
315 | return NULL; | |
316 | } | |
317 | ||
318 | return blob; | |
319 | } | |
320 | ||
321 | ||
322 | static int wpa_config_process_blob(struct wpa_config *config, FILE *f, | |
323 | int *line, char *bname) | |
324 | { | |
325 | char *name_end; | |
326 | struct wpa_config_blob *blob; | |
327 | ||
328 | name_end = os_strchr(bname, '='); | |
329 | if (name_end == NULL) { | |
330 | wpa_printf(MSG_ERROR, "Line %d: no blob name terminator", | |
331 | *line); | |
332 | return -1; | |
333 | } | |
334 | *name_end = '\0'; | |
335 | ||
336 | blob = wpa_config_read_blob(f, line, bname); | |
337 | if (blob == NULL) { | |
338 | wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s", | |
339 | *line, bname); | |
340 | return -1; | |
341 | } | |
342 | wpa_config_set_blob(config, blob); | |
343 | return 0; | |
344 | } | |
345 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
346 | ||
347 | ||
6fc6879b JM |
348 | struct wpa_config * wpa_config_read(const char *name) |
349 | { | |
350 | FILE *f; | |
3f2c8ba6 | 351 | char buf[512], *pos; |
6fc6879b JM |
352 | int errors = 0, line = 0; |
353 | struct wpa_ssid *ssid, *tail = NULL, *head = NULL; | |
1bb7b8e8 | 354 | struct wpa_cred *cred, *cred_tail = NULL, *cred_head = NULL; |
6fc6879b JM |
355 | struct wpa_config *config; |
356 | int id = 0; | |
1bb7b8e8 | 357 | int cred_id = 0; |
6fc6879b JM |
358 | |
359 | config = wpa_config_alloc_empty(NULL, NULL); | |
481cac21 BG |
360 | if (config == NULL) { |
361 | wpa_printf(MSG_ERROR, "Failed to allocate config file " | |
362 | "structure"); | |
6fc6879b | 363 | return NULL; |
481cac21 BG |
364 | } |
365 | ||
6fc6879b JM |
366 | wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name); |
367 | f = fopen(name, "r"); | |
368 | if (f == NULL) { | |
481cac21 BG |
369 | wpa_printf(MSG_ERROR, "Failed to open config file '%s', " |
370 | "error: %s", name, strerror(errno)); | |
6fc6879b JM |
371 | os_free(config); |
372 | return NULL; | |
373 | } | |
374 | ||
375 | while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) { | |
376 | if (os_strcmp(pos, "network={") == 0) { | |
377 | ssid = wpa_config_read_network(f, &line, id++); | |
378 | if (ssid == NULL) { | |
379 | wpa_printf(MSG_ERROR, "Line %d: failed to " | |
380 | "parse network block.", line); | |
381 | errors++; | |
382 | continue; | |
383 | } | |
384 | if (head == NULL) { | |
385 | head = tail = ssid; | |
386 | } else { | |
387 | tail->next = ssid; | |
388 | tail = ssid; | |
389 | } | |
390 | if (wpa_config_add_prio_network(config, ssid)) { | |
391 | wpa_printf(MSG_ERROR, "Line %d: failed to add " | |
392 | "network block to priority list.", | |
393 | line); | |
394 | errors++; | |
395 | continue; | |
396 | } | |
1bb7b8e8 JM |
397 | } else if (os_strcmp(pos, "cred={") == 0) { |
398 | cred = wpa_config_read_cred(f, &line, cred_id++); | |
399 | if (cred == NULL) { | |
400 | wpa_printf(MSG_ERROR, "Line %d: failed to " | |
401 | "parse cred block.", line); | |
402 | errors++; | |
403 | continue; | |
404 | } | |
405 | if (cred_head == NULL) { | |
406 | cred_head = cred_tail = cred; | |
407 | } else { | |
408 | cred_tail->next = cred; | |
409 | cred_tail = cred; | |
410 | } | |
6fc6879b JM |
411 | #ifndef CONFIG_NO_CONFIG_BLOBS |
412 | } else if (os_strncmp(pos, "blob-base64-", 12) == 0) { | |
413 | if (wpa_config_process_blob(config, f, &line, pos + 12) | |
414 | < 0) { | |
481cac21 BG |
415 | wpa_printf(MSG_ERROR, "Line %d: failed to " |
416 | "process blob.", line); | |
6fc6879b JM |
417 | errors++; |
418 | continue; | |
419 | } | |
420 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
421 | } else if (wpa_config_process_global(config, pos, line) < 0) { | |
422 | wpa_printf(MSG_ERROR, "Line %d: Invalid configuration " | |
423 | "line '%s'.", line, pos); | |
424 | errors++; | |
425 | continue; | |
426 | } | |
427 | } | |
428 | ||
429 | fclose(f); | |
430 | ||
431 | config->ssid = head; | |
432 | wpa_config_debug_dump_networks(config); | |
1bb7b8e8 | 433 | config->cred = cred_head; |
6fc6879b | 434 | |
ae6e1bee | 435 | #ifndef WPA_IGNORE_CONFIG_ERRORS |
6fc6879b JM |
436 | if (errors) { |
437 | wpa_config_free(config); | |
438 | config = NULL; | |
439 | head = NULL; | |
440 | } | |
ae6e1bee | 441 | #endif /* WPA_IGNORE_CONFIG_ERRORS */ |
6fc6879b JM |
442 | |
443 | return config; | |
444 | } | |
445 | ||
446 | ||
447 | #ifndef CONFIG_NO_CONFIG_WRITE | |
448 | ||
449 | static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid) | |
450 | { | |
451 | char *value = wpa_config_get(ssid, field); | |
452 | if (value == NULL) | |
453 | return; | |
454 | fprintf(f, "\t%s=%s\n", field, value); | |
455 | os_free(value); | |
456 | } | |
457 | ||
458 | ||
459 | static void write_int(FILE *f, const char *field, int value, int def) | |
460 | { | |
461 | if (value == def) | |
462 | return; | |
463 | fprintf(f, "\t%s=%d\n", field, value); | |
464 | } | |
465 | ||
466 | ||
467 | static void write_bssid(FILE *f, struct wpa_ssid *ssid) | |
468 | { | |
469 | char *value = wpa_config_get(ssid, "bssid"); | |
470 | if (value == NULL) | |
471 | return; | |
472 | fprintf(f, "\tbssid=%s\n", value); | |
473 | os_free(value); | |
474 | } | |
475 | ||
476 | ||
477 | static void write_psk(FILE *f, struct wpa_ssid *ssid) | |
478 | { | |
479 | char *value = wpa_config_get(ssid, "psk"); | |
480 | if (value == NULL) | |
481 | return; | |
482 | fprintf(f, "\tpsk=%s\n", value); | |
483 | os_free(value); | |
484 | } | |
485 | ||
486 | ||
487 | static void write_proto(FILE *f, struct wpa_ssid *ssid) | |
488 | { | |
489 | char *value; | |
490 | ||
491 | if (ssid->proto == DEFAULT_PROTO) | |
492 | return; | |
493 | ||
494 | value = wpa_config_get(ssid, "proto"); | |
495 | if (value == NULL) | |
496 | return; | |
497 | if (value[0]) | |
498 | fprintf(f, "\tproto=%s\n", value); | |
499 | os_free(value); | |
500 | } | |
501 | ||
502 | ||
503 | static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid) | |
504 | { | |
505 | char *value; | |
506 | ||
507 | if (ssid->key_mgmt == DEFAULT_KEY_MGMT) | |
508 | return; | |
509 | ||
510 | value = wpa_config_get(ssid, "key_mgmt"); | |
511 | if (value == NULL) | |
512 | return; | |
513 | if (value[0]) | |
514 | fprintf(f, "\tkey_mgmt=%s\n", value); | |
515 | os_free(value); | |
516 | } | |
517 | ||
518 | ||
519 | static void write_pairwise(FILE *f, struct wpa_ssid *ssid) | |
520 | { | |
521 | char *value; | |
522 | ||
523 | if (ssid->pairwise_cipher == DEFAULT_PAIRWISE) | |
524 | return; | |
525 | ||
526 | value = wpa_config_get(ssid, "pairwise"); | |
527 | if (value == NULL) | |
528 | return; | |
529 | if (value[0]) | |
530 | fprintf(f, "\tpairwise=%s\n", value); | |
531 | os_free(value); | |
532 | } | |
533 | ||
534 | ||
535 | static void write_group(FILE *f, struct wpa_ssid *ssid) | |
536 | { | |
537 | char *value; | |
538 | ||
539 | if (ssid->group_cipher == DEFAULT_GROUP) | |
540 | return; | |
541 | ||
542 | value = wpa_config_get(ssid, "group"); | |
543 | if (value == NULL) | |
544 | return; | |
545 | if (value[0]) | |
546 | fprintf(f, "\tgroup=%s\n", value); | |
547 | os_free(value); | |
548 | } | |
549 | ||
550 | ||
551 | static void write_auth_alg(FILE *f, struct wpa_ssid *ssid) | |
552 | { | |
553 | char *value; | |
554 | ||
555 | if (ssid->auth_alg == 0) | |
556 | return; | |
557 | ||
558 | value = wpa_config_get(ssid, "auth_alg"); | |
559 | if (value == NULL) | |
560 | return; | |
561 | if (value[0]) | |
562 | fprintf(f, "\tauth_alg=%s\n", value); | |
563 | os_free(value); | |
564 | } | |
565 | ||
566 | ||
567 | #ifdef IEEE8021X_EAPOL | |
568 | static void write_eap(FILE *f, struct wpa_ssid *ssid) | |
569 | { | |
570 | char *value; | |
571 | ||
572 | value = wpa_config_get(ssid, "eap"); | |
573 | if (value == NULL) | |
574 | return; | |
575 | ||
576 | if (value[0]) | |
577 | fprintf(f, "\teap=%s\n", value); | |
578 | os_free(value); | |
579 | } | |
580 | #endif /* IEEE8021X_EAPOL */ | |
581 | ||
582 | ||
583 | static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid) | |
584 | { | |
585 | char field[20], *value; | |
586 | int res; | |
587 | ||
588 | res = os_snprintf(field, sizeof(field), "wep_key%d", idx); | |
589 | if (res < 0 || (size_t) res >= sizeof(field)) | |
590 | return; | |
591 | value = wpa_config_get(ssid, field); | |
592 | if (value) { | |
593 | fprintf(f, "\t%s=%s\n", field, value); | |
594 | os_free(value); | |
595 | } | |
596 | } | |
597 | ||
598 | ||
fbdcfd57 JM |
599 | #ifdef CONFIG_P2P |
600 | static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid) | |
601 | { | |
602 | char *value = wpa_config_get(ssid, "p2p_client_list"); | |
603 | if (value == NULL) | |
604 | return; | |
605 | fprintf(f, "\tp2p_client_list=%s\n", value); | |
606 | os_free(value); | |
607 | } | |
608 | #endif /* CONFIG_P2P */ | |
609 | ||
610 | ||
6fc6879b JM |
611 | static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid) |
612 | { | |
613 | int i; | |
614 | ||
615 | #define STR(t) write_str(f, #t, ssid) | |
616 | #define INT(t) write_int(f, #t, ssid->t, 0) | |
617 | #define INTe(t) write_int(f, #t, ssid->eap.t, 0) | |
618 | #define INT_DEF(t, def) write_int(f, #t, ssid->t, def) | |
619 | #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def) | |
620 | ||
621 | STR(ssid); | |
622 | INT(scan_ssid); | |
623 | write_bssid(f, ssid); | |
624 | write_psk(f, ssid); | |
625 | write_proto(f, ssid); | |
626 | write_key_mgmt(f, ssid); | |
4f920dc6 | 627 | INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD); |
6fc6879b JM |
628 | write_pairwise(f, ssid); |
629 | write_group(f, ssid); | |
630 | write_auth_alg(f, ssid); | |
af548f53 | 631 | STR(bgscan); |
1aea2ca3 | 632 | STR(autoscan); |
6fc6879b JM |
633 | #ifdef IEEE8021X_EAPOL |
634 | write_eap(f, ssid); | |
635 | STR(identity); | |
636 | STR(anonymous_identity); | |
637 | STR(password); | |
638 | STR(ca_cert); | |
639 | STR(ca_path); | |
640 | STR(client_cert); | |
641 | STR(private_key); | |
642 | STR(private_key_passwd); | |
643 | STR(dh_file); | |
644 | STR(subject_match); | |
645 | STR(altsubject_match); | |
646 | STR(ca_cert2); | |
647 | STR(ca_path2); | |
648 | STR(client_cert2); | |
649 | STR(private_key2); | |
650 | STR(private_key2_passwd); | |
651 | STR(dh_file2); | |
652 | STR(subject_match2); | |
653 | STR(altsubject_match2); | |
654 | STR(phase1); | |
655 | STR(phase2); | |
656 | STR(pcsc); | |
657 | STR(pin); | |
658 | STR(engine_id); | |
659 | STR(key_id); | |
61ee0f71 DS |
660 | STR(cert_id); |
661 | STR(ca_cert_id); | |
662 | STR(key2_id); | |
98842d51 CL |
663 | STR(pin2); |
664 | STR(engine2_id); | |
61ee0f71 DS |
665 | STR(cert2_id); |
666 | STR(ca_cert2_id); | |
6fc6879b | 667 | INTe(engine); |
98842d51 | 668 | INTe(engine2); |
6fc6879b JM |
669 | INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS); |
670 | #endif /* IEEE8021X_EAPOL */ | |
671 | for (i = 0; i < 4; i++) | |
672 | write_wep_key(f, i, ssid); | |
673 | INT(wep_tx_keyidx); | |
674 | INT(priority); | |
675 | #ifdef IEEE8021X_EAPOL | |
676 | INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND); | |
677 | STR(pac_file); | |
678 | INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE); | |
679 | #endif /* IEEE8021X_EAPOL */ | |
680 | INT(mode); | |
bca06366 | 681 | INT(frequency); |
6e202021 | 682 | write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1); |
6fc6879b JM |
683 | INT(disabled); |
684 | INT(peerkey); | |
685 | #ifdef CONFIG_IEEE80211W | |
62d49803 JM |
686 | write_int(f, "ieee80211w", ssid->ieee80211w, |
687 | MGMT_FRAME_PROTECTION_DEFAULT); | |
6fc6879b JM |
688 | #endif /* CONFIG_IEEE80211W */ |
689 | STR(id_str); | |
fbdcfd57 JM |
690 | #ifdef CONFIG_P2P |
691 | write_p2p_client_list(f, ssid); | |
692 | #endif /* CONFIG_P2P */ | |
18206e02 JM |
693 | INT(dtim_period); |
694 | INT(beacon_int); | |
6fc6879b JM |
695 | |
696 | #undef STR | |
697 | #undef INT | |
698 | #undef INT_DEF | |
699 | } | |
700 | ||
701 | ||
f2c20751 JM |
702 | static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred) |
703 | { | |
1a712d2f JM |
704 | if (cred->priority) |
705 | fprintf(f, "\tpriority=%d\n", cred->priority); | |
d7b01abd JM |
706 | if (cred->pcsc) |
707 | fprintf(f, "\tpcsc=%d\n", cred->pcsc); | |
f2c20751 JM |
708 | if (cred->realm) |
709 | fprintf(f, "\trealm=\"%s\"\n", cred->realm); | |
710 | if (cred->username) | |
711 | fprintf(f, "\tusername=\"%s\"\n", cred->username); | |
9aae09f1 JM |
712 | if (cred->password && cred->ext_password) |
713 | fprintf(f, "\tpassword=ext:%s\n", cred->password); | |
714 | else if (cred->password) | |
f2c20751 JM |
715 | fprintf(f, "\tpassword=\"%s\"\n", cred->password); |
716 | if (cred->ca_cert) | |
717 | fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert); | |
9aae09f1 JM |
718 | if (cred->client_cert) |
719 | fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert); | |
720 | if (cred->private_key) | |
721 | fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key); | |
722 | if (cred->private_key_passwd) | |
723 | fprintf(f, "\tprivate_key_passwd=\"%s\"\n", | |
724 | cred->private_key_passwd); | |
f2c20751 JM |
725 | if (cred->imsi) |
726 | fprintf(f, "\timsi=\"%s\"\n", cred->imsi); | |
727 | if (cred->milenage) | |
728 | fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage); | |
729 | if (cred->domain) | |
730 | fprintf(f, "\tdomain=\"%s\"\n", cred->domain); | |
9aae09f1 JM |
731 | if (cred->roaming_consortium_len) { |
732 | size_t i; | |
733 | fprintf(f, "\troaming_consortium="); | |
734 | for (i = 0; i < cred->roaming_consortium_len; i++) | |
735 | fprintf(f, "%02x", cred->roaming_consortium[i]); | |
736 | fprintf(f, "\n"); | |
737 | } | |
738 | if (cred->eap_method) { | |
739 | const char *name; | |
740 | name = eap_get_name(cred->eap_method[0].vendor, | |
741 | cred->eap_method[0].method); | |
742 | fprintf(f, "\teap=%s\n", name); | |
743 | } | |
744 | if (cred->phase1) | |
745 | fprintf(f, "\tphase1=\"%s\"\n", cred->phase1); | |
746 | if (cred->phase2) | |
747 | fprintf(f, "\tphase2=\"%s\"\n", cred->phase2); | |
dbea8ac7 JM |
748 | if (cred->excluded_ssid) { |
749 | size_t i, j; | |
750 | for (i = 0; i < cred->num_excluded_ssid; i++) { | |
751 | struct excluded_ssid *e = &cred->excluded_ssid[i]; | |
752 | fprintf(f, "\texcluded_ssid="); | |
753 | for (j = 0; j < e->ssid_len; j++) | |
754 | fprintf(f, "%02x", e->ssid[j]); | |
755 | fprintf(f, "\n"); | |
756 | } | |
757 | } | |
f2c20751 JM |
758 | } |
759 | ||
760 | ||
6fc6879b JM |
761 | #ifndef CONFIG_NO_CONFIG_BLOBS |
762 | static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob) | |
763 | { | |
764 | unsigned char *encoded; | |
765 | ||
766 | encoded = base64_encode(blob->data, blob->len, NULL); | |
767 | if (encoded == NULL) | |
768 | return -1; | |
769 | ||
770 | fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded); | |
771 | os_free(encoded); | |
772 | return 0; | |
773 | } | |
774 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
775 | ||
776 | ||
3f2c8ba6 JM |
777 | static void write_global_bin(FILE *f, const char *field, |
778 | const struct wpabuf *val) | |
779 | { | |
780 | size_t i; | |
781 | const u8 *pos; | |
782 | ||
783 | if (val == NULL) | |
784 | return; | |
785 | ||
786 | fprintf(f, "%s=", field); | |
787 | pos = wpabuf_head(val); | |
788 | for (i = 0; i < wpabuf_len(val); i++) | |
789 | fprintf(f, "%02X", *pos++); | |
790 | fprintf(f, "\n"); | |
791 | } | |
792 | ||
793 | ||
6fc6879b JM |
794 | static void wpa_config_write_global(FILE *f, struct wpa_config *config) |
795 | { | |
796 | #ifdef CONFIG_CTRL_IFACE | |
797 | if (config->ctrl_interface) | |
798 | fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface); | |
799 | if (config->ctrl_interface_group) | |
800 | fprintf(f, "ctrl_interface_group=%s\n", | |
801 | config->ctrl_interface_group); | |
802 | #endif /* CONFIG_CTRL_IFACE */ | |
803 | if (config->eapol_version != DEFAULT_EAPOL_VERSION) | |
804 | fprintf(f, "eapol_version=%d\n", config->eapol_version); | |
805 | if (config->ap_scan != DEFAULT_AP_SCAN) | |
806 | fprintf(f, "ap_scan=%d\n", config->ap_scan); | |
54ddd743 JM |
807 | if (config->disable_scan_offload) |
808 | fprintf(f, "disable_scan_offload=%d\n", | |
809 | config->disable_scan_offload); | |
6fc6879b JM |
810 | if (config->fast_reauth != DEFAULT_FAST_REAUTH) |
811 | fprintf(f, "fast_reauth=%d\n", config->fast_reauth); | |
6fc6879b JM |
812 | if (config->opensc_engine_path) |
813 | fprintf(f, "opensc_engine_path=%s\n", | |
814 | config->opensc_engine_path); | |
815 | if (config->pkcs11_engine_path) | |
816 | fprintf(f, "pkcs11_engine_path=%s\n", | |
817 | config->pkcs11_engine_path); | |
818 | if (config->pkcs11_module_path) | |
819 | fprintf(f, "pkcs11_module_path=%s\n", | |
820 | config->pkcs11_module_path); | |
f64adcd7 JM |
821 | if (config->pcsc_reader) |
822 | fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader); | |
823 | if (config->pcsc_pin) | |
824 | fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin); | |
6fc6879b JM |
825 | if (config->driver_param) |
826 | fprintf(f, "driver_param=%s\n", config->driver_param); | |
827 | if (config->dot11RSNAConfigPMKLifetime) | |
828 | fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n", | |
829 | config->dot11RSNAConfigPMKLifetime); | |
830 | if (config->dot11RSNAConfigPMKReauthThreshold) | |
831 | fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n", | |
832 | config->dot11RSNAConfigPMKReauthThreshold); | |
833 | if (config->dot11RSNAConfigSATimeout) | |
834 | fprintf(f, "dot11RSNAConfigSATimeout=%d\n", | |
835 | config->dot11RSNAConfigSATimeout); | |
836 | if (config->update_config) | |
837 | fprintf(f, "update_config=%d\n", config->update_config); | |
f855f923 | 838 | #ifdef CONFIG_WPS |
9be09636 | 839 | if (!is_nil_uuid(config->uuid)) { |
f855f923 JM |
840 | char buf[40]; |
841 | uuid_bin2str(config->uuid, buf, sizeof(buf)); | |
842 | fprintf(f, "uuid=%s\n", buf); | |
843 | } | |
3c0b7aa4 JM |
844 | if (config->device_name) |
845 | fprintf(f, "device_name=%s\n", config->device_name); | |
846 | if (config->manufacturer) | |
847 | fprintf(f, "manufacturer=%s\n", config->manufacturer); | |
848 | if (config->model_name) | |
849 | fprintf(f, "model_name=%s\n", config->model_name); | |
850 | if (config->model_number) | |
851 | fprintf(f, "model_number=%s\n", config->model_number); | |
852 | if (config->serial_number) | |
853 | fprintf(f, "serial_number=%s\n", config->serial_number); | |
2f646b6e JB |
854 | { |
855 | char _buf[WPS_DEV_TYPE_BUFSIZE], *buf; | |
856 | buf = wps_dev_type_bin2str(config->device_type, | |
857 | _buf, sizeof(_buf)); | |
a769b094 JM |
858 | if (os_strcmp(buf, "0-00000000-0") != 0) |
859 | fprintf(f, "device_type=%s\n", buf); | |
2f646b6e | 860 | } |
9be09636 | 861 | if (WPA_GET_BE32(config->os_version)) |
3c0b7aa4 JM |
862 | fprintf(f, "os_version=%08x\n", |
863 | WPA_GET_BE32(config->os_version)); | |
c0e4dd9e JM |
864 | if (config->config_methods) |
865 | fprintf(f, "config_methods=%s\n", config->config_methods); | |
47662164 JM |
866 | if (config->wps_cred_processing) |
867 | fprintf(f, "wps_cred_processing=%d\n", | |
868 | config->wps_cred_processing); | |
71dd3b78 AS |
869 | if (config->wps_vendor_ext_m1) { |
870 | int i, len = wpabuf_len(config->wps_vendor_ext_m1); | |
871 | const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1); | |
872 | if (len > 0) { | |
873 | fprintf(f, "wps_vendor_ext_m1="); | |
874 | for (i = 0; i < len; i++) | |
875 | fprintf(f, "%02x", *p++); | |
876 | fprintf(f, "\n"); | |
877 | } | |
878 | } | |
f855f923 | 879 | #endif /* CONFIG_WPS */ |
e3768e7c JM |
880 | #ifdef CONFIG_P2P |
881 | if (config->p2p_listen_reg_class) | |
882 | fprintf(f, "p2p_listen_reg_class=%u\n", | |
883 | config->p2p_listen_reg_class); | |
884 | if (config->p2p_listen_channel) | |
885 | fprintf(f, "p2p_listen_channel=%u\n", | |
886 | config->p2p_listen_channel); | |
887 | if (config->p2p_oper_reg_class) | |
888 | fprintf(f, "p2p_oper_reg_class=%u\n", | |
889 | config->p2p_oper_reg_class); | |
890 | if (config->p2p_oper_channel) | |
891 | fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel); | |
892 | if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT) | |
893 | fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent); | |
894 | if (config->p2p_ssid_postfix) | |
895 | fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix); | |
896 | if (config->persistent_reconnect) | |
897 | fprintf(f, "persistent_reconnect=%u\n", | |
898 | config->persistent_reconnect); | |
0f66abd2 SS |
899 | if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS) |
900 | fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss); | |
3071e181 JM |
901 | if (config->p2p_group_idle) |
902 | fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle); | |
21d996f7 JM |
903 | if (config->p2p_pref_chan) { |
904 | unsigned int i; | |
905 | fprintf(f, "p2p_pref_chan="); | |
906 | for (i = 0; i < config->num_p2p_pref_chan; i++) { | |
907 | fprintf(f, "%s%u:%u", i > 0 ? "," : "", | |
908 | config->p2p_pref_chan[i].op_class, | |
909 | config->p2p_pref_chan[i].chan); | |
910 | } | |
911 | fprintf(f, "\n"); | |
912 | } | |
a93a15bb AN |
913 | if (config->p2p_go_ht40) |
914 | fprintf(f, "p2p_go_ht40=%u\n", config->p2p_go_ht40); | |
7a808c7e JM |
915 | if (config->p2p_disabled) |
916 | fprintf(f, "p2p_disabled=%u\n", config->p2p_disabled); | |
d76cd41a JM |
917 | if (config->p2p_no_group_iface) |
918 | fprintf(f, "p2p_no_group_iface=%u\n", | |
919 | config->p2p_no_group_iface); | |
e3768e7c | 920 | #endif /* CONFIG_P2P */ |
315ce40a | 921 | if (config->country[0] && config->country[1]) { |
6d158490 | 922 | fprintf(f, "country=%c%c\n", |
315ce40a | 923 | config->country[0], config->country[1]); |
6d158490 | 924 | } |
c9c38b09 JM |
925 | if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT) |
926 | fprintf(f, "bss_max_count=%u\n", config->bss_max_count); | |
78633c37 SL |
927 | if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE) |
928 | fprintf(f, "bss_expiration_age=%u\n", | |
929 | config->bss_expiration_age); | |
930 | if (config->bss_expiration_scan_count != | |
931 | DEFAULT_BSS_EXPIRATION_SCAN_COUNT) | |
932 | fprintf(f, "bss_expiration_scan_count=%u\n", | |
933 | config->bss_expiration_scan_count); | |
3812464c JM |
934 | if (config->filter_ssids) |
935 | fprintf(f, "filter_ssids=%d\n", config->filter_ssids); | |
dae608d5 JM |
936 | if (config->max_num_sta != DEFAULT_MAX_NUM_STA) |
937 | fprintf(f, "max_num_sta=%u\n", config->max_num_sta); | |
0d7e5a3a JB |
938 | if (config->disassoc_low_ack) |
939 | fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack); | |
66aadbd7 JK |
940 | #ifdef CONFIG_HS20 |
941 | if (config->hs20) | |
942 | fprintf(f, "hs20=1\n"); | |
943 | #endif /* CONFIG_HS20 */ | |
67e1b984 | 944 | #ifdef CONFIG_INTERWORKING |
46ee0427 JM |
945 | if (config->interworking) |
946 | fprintf(f, "interworking=%u\n", config->interworking); | |
947 | if (!is_zero_ether_addr(config->hessid)) | |
948 | fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid)); | |
11540c0b JM |
949 | if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE) |
950 | fprintf(f, "access_network_type=%d\n", | |
951 | config->access_network_type); | |
67e1b984 | 952 | #endif /* CONFIG_INTERWORKING */ |
1298c145 WJL |
953 | if (config->pbc_in_m1) |
954 | fprintf(f, "pbc_in_m1=%u\n", config->pbc_in_m1); | |
042ec551 JM |
955 | if (config->wps_nfc_pw_from_config) { |
956 | if (config->wps_nfc_dev_pw_id) | |
957 | fprintf(f, "wps_nfc_dev_pw_id=%d\n", | |
958 | config->wps_nfc_dev_pw_id); | |
959 | write_global_bin(f, "wps_nfc_dh_pubkey", | |
960 | config->wps_nfc_dh_pubkey); | |
961 | write_global_bin(f, "wps_nfc_dh_privkey", | |
962 | config->wps_nfc_dh_privkey); | |
963 | write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw); | |
964 | } | |
306ae225 JM |
965 | |
966 | if (config->ext_password_backend) | |
967 | fprintf(f, "ext_password_backend=%s\n", | |
968 | config->ext_password_backend); | |
462a7439 ES |
969 | if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY) |
970 | fprintf(f, "p2p_go_max_inactivity=%d\n", | |
971 | config->p2p_go_max_inactivity); | |
4d5bda5f JM |
972 | if (config->auto_interworking) |
973 | fprintf(f, "auto_interworking=%d\n", | |
974 | config->auto_interworking); | |
6e202021 JM |
975 | if (config->okc) |
976 | fprintf(f, "okc=%d\n", config->okc); | |
62d49803 JM |
977 | if (config->pmf) |
978 | fprintf(f, "pmf=%d\n", config->pmf); | |
18206e02 JM |
979 | if (config->dtim_period) |
980 | fprintf(f, "dtim_period=%d\n", config->dtim_period); | |
981 | if (config->beacon_int) | |
982 | fprintf(f, "beacon_int=%d\n", config->beacon_int); | |
625f202a JM |
983 | |
984 | if (config->sae_groups) { | |
985 | int i; | |
986 | fprintf(f, "sae_groups="); | |
987 | for (i = 0; config->sae_groups[i] >= 0; i++) { | |
988 | fprintf(f, "%s%d", i > 0 ? " " : "", | |
989 | config->sae_groups[i]); | |
990 | } | |
991 | fprintf(f, "\n"); | |
992 | } | |
6fc6879b JM |
993 | } |
994 | ||
995 | #endif /* CONFIG_NO_CONFIG_WRITE */ | |
996 | ||
997 | ||
998 | int wpa_config_write(const char *name, struct wpa_config *config) | |
999 | { | |
1000 | #ifndef CONFIG_NO_CONFIG_WRITE | |
1001 | FILE *f; | |
1002 | struct wpa_ssid *ssid; | |
f2c20751 | 1003 | struct wpa_cred *cred; |
6fc6879b JM |
1004 | #ifndef CONFIG_NO_CONFIG_BLOBS |
1005 | struct wpa_config_blob *blob; | |
1006 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
1007 | int ret = 0; | |
1008 | ||
1009 | wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name); | |
1010 | ||
1011 | f = fopen(name, "w"); | |
1012 | if (f == NULL) { | |
1013 | wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name); | |
1014 | return -1; | |
1015 | } | |
1016 | ||
1017 | wpa_config_write_global(f, config); | |
1018 | ||
f2c20751 JM |
1019 | for (cred = config->cred; cred; cred = cred->next) { |
1020 | fprintf(f, "\ncred={\n"); | |
1021 | wpa_config_write_cred(f, cred); | |
1022 | fprintf(f, "}\n"); | |
1023 | } | |
1024 | ||
6fc6879b | 1025 | for (ssid = config->ssid; ssid; ssid = ssid->next) { |
2ff99b3c JM |
1026 | if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary) |
1027 | continue; /* do not save temporary networks */ | |
8e8280bd JM |
1028 | if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set && |
1029 | !ssid->passphrase) | |
1030 | continue; /* do not save invalid network */ | |
6fc6879b JM |
1031 | fprintf(f, "\nnetwork={\n"); |
1032 | wpa_config_write_network(f, ssid); | |
1033 | fprintf(f, "}\n"); | |
1034 | } | |
1035 | ||
1036 | #ifndef CONFIG_NO_CONFIG_BLOBS | |
1037 | for (blob = config->blobs; blob; blob = blob->next) { | |
1038 | ret = wpa_config_write_blob(f, blob); | |
1039 | if (ret) | |
1040 | break; | |
1041 | } | |
1042 | #endif /* CONFIG_NO_CONFIG_BLOBS */ | |
1043 | ||
1044 | fclose(f); | |
1045 | ||
1046 | wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully", | |
1047 | name, ret ? "un" : ""); | |
1048 | return ret; | |
1049 | #else /* CONFIG_NO_CONFIG_WRITE */ | |
1050 | return -1; | |
1051 | #endif /* CONFIG_NO_CONFIG_WRITE */ | |
1052 | } |