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54f489be JM |
1 | /* |
2 | * Wi-Fi Protected Setup - Strict protocol validation routines | |
3 | * Copyright (c) 2010, Atheros Communications, Inc. | |
4 | * | |
e22d4d95 JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
54f489be JM |
7 | */ |
8 | ||
9 | #include "utils/includes.h" | |
10 | ||
11 | #include "utils/common.h" | |
12 | #include "wps_i.h" | |
13 | #include "wps.h" | |
14 | ||
15 | ||
e69b86b7 JM |
16 | #ifndef WPS_STRICT_ALL |
17 | #define WPS_STRICT_WPS2 | |
18 | #endif /* WPS_STRICT_ALL */ | |
19 | ||
20 | ||
54f489be JM |
21 | static int wps_validate_version(const u8 *version, int mandatory) |
22 | { | |
23 | if (version == NULL) { | |
24 | if (mandatory) { | |
25 | wpa_printf(MSG_INFO, "WPS-STRICT: Version attribute " | |
26 | "missing"); | |
27 | return -1; | |
28 | } | |
29 | return 0; | |
30 | } | |
31 | if (*version != 0x10) { | |
32 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Version attribute " | |
33 | "value 0x%x", *version); | |
34 | return -1; | |
35 | } | |
36 | return 0; | |
37 | } | |
38 | ||
39 | ||
40 | static int wps_validate_version2(const u8 *version2, int mandatory) | |
41 | { | |
42 | if (version2 == NULL) { | |
43 | if (mandatory) { | |
44 | wpa_printf(MSG_INFO, "WPS-STRICT: Version2 attribute " | |
45 | "missing"); | |
46 | return -1; | |
47 | } | |
48 | return 0; | |
49 | } | |
50 | if (*version2 < 0x20) { | |
51 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Version2 attribute " | |
52 | "value 0x%x", *version2); | |
53 | return -1; | |
54 | } | |
55 | return 0; | |
56 | } | |
57 | ||
58 | ||
59 | static int wps_validate_request_type(const u8 *request_type, int mandatory) | |
60 | { | |
61 | if (request_type == NULL) { | |
62 | if (mandatory) { | |
63 | wpa_printf(MSG_INFO, "WPS-STRICT: Request Type " | |
64 | "attribute missing"); | |
65 | return -1; | |
66 | } | |
67 | return 0; | |
68 | } | |
69 | if (*request_type > 0x03) { | |
70 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Request Type " | |
71 | "attribute value 0x%x", *request_type); | |
72 | return -1; | |
73 | } | |
74 | return 0; | |
75 | } | |
76 | ||
77 | ||
78 | static int wps_validate_response_type(const u8 *response_type, int mandatory) | |
79 | { | |
80 | if (response_type == NULL) { | |
81 | if (mandatory) { | |
82 | wpa_printf(MSG_INFO, "WPS-STRICT: Response Type " | |
83 | "attribute missing"); | |
84 | return -1; | |
85 | } | |
86 | return 0; | |
87 | } | |
88 | if (*response_type > 0x03) { | |
89 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Response Type " | |
90 | "attribute value 0x%x", *response_type); | |
91 | return -1; | |
92 | } | |
93 | return 0; | |
94 | } | |
95 | ||
96 | ||
97 | static int valid_config_methods(u16 val, int wps2) | |
98 | { | |
99 | if (wps2) { | |
100 | if ((val & 0x6000) && !(val & WPS_CONFIG_DISPLAY)) { | |
101 | wpa_printf(MSG_INFO, "WPS-STRICT: Physical/Virtual " | |
102 | "Display flag without old Display flag " | |
103 | "set"); | |
104 | return 0; | |
105 | } | |
106 | if (!(val & 0x6000) && (val & WPS_CONFIG_DISPLAY)) { | |
107 | wpa_printf(MSG_INFO, "WPS-STRICT: Display flag " | |
108 | "without Physical/Virtual Display flag"); | |
109 | return 0; | |
110 | } | |
111 | if ((val & 0x0600) && !(val & WPS_CONFIG_PUSHBUTTON)) { | |
112 | wpa_printf(MSG_INFO, "WPS-STRICT: Physical/Virtual " | |
113 | "PushButton flag without old PushButton " | |
114 | "flag set"); | |
115 | return 0; | |
116 | } | |
117 | if (!(val & 0x0600) && (val & WPS_CONFIG_PUSHBUTTON)) { | |
118 | wpa_printf(MSG_INFO, "WPS-STRICT: PushButton flag " | |
119 | "without Physical/Virtual PushButton flag"); | |
120 | return 0; | |
121 | } | |
122 | } | |
123 | ||
124 | return 1; | |
125 | } | |
126 | ||
127 | ||
128 | static int wps_validate_config_methods(const u8 *config_methods, int wps2, | |
129 | int mandatory) | |
130 | { | |
131 | u16 val; | |
132 | ||
133 | if (config_methods == NULL) { | |
134 | if (mandatory) { | |
135 | wpa_printf(MSG_INFO, "WPS-STRICT: Configuration " | |
136 | "Methods attribute missing"); | |
137 | return -1; | |
138 | } | |
139 | return 0; | |
140 | } | |
141 | ||
142 | val = WPA_GET_BE16(config_methods); | |
143 | if (!valid_config_methods(val, wps2)) { | |
144 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Configuration " | |
145 | "Methods attribute value 0x%04x", val); | |
146 | return -1; | |
147 | } | |
148 | return 0; | |
149 | } | |
150 | ||
151 | ||
152 | static int wps_validate_ap_config_methods(const u8 *config_methods, int wps2, | |
153 | int mandatory) | |
154 | { | |
155 | u16 val; | |
156 | ||
157 | if (wps_validate_config_methods(config_methods, wps2, mandatory) < 0) | |
158 | return -1; | |
159 | if (config_methods == NULL) | |
160 | return 0; | |
161 | val = WPA_GET_BE16(config_methods); | |
162 | if (val & WPS_CONFIG_PUSHBUTTON) { | |
163 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Configuration " | |
164 | "Methods attribute value 0x%04x in AP info " | |
165 | "(PushButton not allowed for registering new ER)", | |
166 | val); | |
167 | return -1; | |
168 | } | |
169 | return 0; | |
170 | } | |
171 | ||
172 | ||
173 | static int wps_validate_uuid_e(const u8 *uuid_e, int mandatory) | |
174 | { | |
175 | if (uuid_e == NULL) { | |
176 | if (mandatory) { | |
177 | wpa_printf(MSG_INFO, "WPS-STRICT: UUID-E " | |
178 | "attribute missing"); | |
179 | return -1; | |
180 | } | |
181 | return 0; | |
182 | } | |
183 | return 0; | |
184 | } | |
185 | ||
186 | ||
187 | static int wps_validate_uuid_r(const u8 *uuid_r, int mandatory) | |
188 | { | |
189 | if (uuid_r == NULL) { | |
190 | if (mandatory) { | |
191 | wpa_printf(MSG_INFO, "WPS-STRICT: UUID-R " | |
192 | "attribute missing"); | |
193 | return -1; | |
194 | } | |
195 | return 0; | |
196 | } | |
197 | return 0; | |
198 | } | |
199 | ||
200 | ||
201 | static int wps_validate_primary_dev_type(const u8 *primary_dev_type, | |
202 | int mandatory) | |
203 | { | |
204 | if (primary_dev_type == NULL) { | |
205 | if (mandatory) { | |
206 | wpa_printf(MSG_INFO, "WPS-STRICT: Primary Device Type " | |
207 | "attribute missing"); | |
208 | return -1; | |
209 | } | |
210 | return 0; | |
211 | } | |
212 | return 0; | |
213 | } | |
214 | ||
215 | ||
216 | static int wps_validate_rf_bands(const u8 *rf_bands, int mandatory) | |
217 | { | |
218 | if (rf_bands == NULL) { | |
219 | if (mandatory) { | |
220 | wpa_printf(MSG_INFO, "WPS-STRICT: RF Bands " | |
221 | "attribute missing"); | |
222 | return -1; | |
223 | } | |
224 | return 0; | |
225 | } | |
226 | if (*rf_bands != WPS_RF_24GHZ && *rf_bands != WPS_RF_50GHZ && | |
01a02593 HK |
227 | *rf_bands != WPS_RF_60GHZ && |
228 | *rf_bands != (WPS_RF_24GHZ | WPS_RF_50GHZ | WPS_RF_60GHZ) && | |
54f489be JM |
229 | *rf_bands != (WPS_RF_24GHZ | WPS_RF_50GHZ)) { |
230 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Rf Bands " | |
231 | "attribute value 0x%x", *rf_bands); | |
232 | return -1; | |
233 | } | |
234 | return 0; | |
235 | } | |
236 | ||
237 | ||
238 | static int wps_validate_assoc_state(const u8 *assoc_state, int mandatory) | |
239 | { | |
240 | u16 val; | |
241 | if (assoc_state == NULL) { | |
242 | if (mandatory) { | |
243 | wpa_printf(MSG_INFO, "WPS-STRICT: Association State " | |
244 | "attribute missing"); | |
245 | return -1; | |
246 | } | |
247 | return 0; | |
248 | } | |
249 | val = WPA_GET_BE16(assoc_state); | |
250 | if (val > 4) { | |
251 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Association State " | |
252 | "attribute value 0x%04x", val); | |
253 | return -1; | |
254 | } | |
255 | return 0; | |
256 | } | |
257 | ||
258 | ||
259 | static int wps_validate_config_error(const u8 *config_error, int mandatory) | |
260 | { | |
261 | u16 val; | |
262 | ||
263 | if (config_error == NULL) { | |
264 | if (mandatory) { | |
265 | wpa_printf(MSG_INFO, "WPS-STRICT: Configuration Error " | |
266 | "attribute missing"); | |
267 | return -1; | |
268 | } | |
269 | return 0; | |
270 | } | |
271 | val = WPA_GET_BE16(config_error); | |
75dbf981 | 272 | if (val > 20) { |
54f489be JM |
273 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Configuration Error " |
274 | "attribute value 0x%04x", val); | |
275 | return -1; | |
276 | } | |
277 | return 0; | |
278 | } | |
279 | ||
280 | ||
281 | static int wps_validate_dev_password_id(const u8 *dev_password_id, | |
282 | int mandatory) | |
283 | { | |
284 | u16 val; | |
285 | ||
286 | if (dev_password_id == NULL) { | |
287 | if (mandatory) { | |
288 | wpa_printf(MSG_INFO, "WPS-STRICT: Device Password ID " | |
289 | "attribute missing"); | |
290 | return -1; | |
291 | } | |
292 | return 0; | |
293 | } | |
294 | val = WPA_GET_BE16(dev_password_id); | |
75dbf981 | 295 | if (val >= 0x0008 && val <= 0x000f) { |
54f489be JM |
296 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Device Password ID " |
297 | "attribute value 0x%04x", val); | |
298 | return -1; | |
299 | } | |
300 | return 0; | |
301 | } | |
302 | ||
303 | ||
304 | static int wps_validate_manufacturer(const u8 *manufacturer, size_t len, | |
305 | int mandatory) | |
306 | { | |
307 | if (manufacturer == NULL) { | |
308 | if (mandatory) { | |
309 | wpa_printf(MSG_INFO, "WPS-STRICT: Manufacturer " | |
310 | "attribute missing"); | |
311 | return -1; | |
312 | } | |
313 | return 0; | |
314 | } | |
315 | if (len > 0 && manufacturer[len - 1] == 0) { | |
316 | wpa_hexdump_ascii(MSG_INFO, "WPS-STRICT: Invalid Manufacturer " | |
317 | "attribute value", manufacturer, len); | |
318 | return -1; | |
319 | } | |
320 | return 0; | |
321 | } | |
322 | ||
323 | ||
324 | static int wps_validate_model_name(const u8 *model_name, size_t len, | |
325 | int mandatory) | |
326 | { | |
327 | if (model_name == NULL) { | |
328 | if (mandatory) { | |
329 | wpa_printf(MSG_INFO, "WPS-STRICT: Model Name " | |
330 | "attribute missing"); | |
331 | return -1; | |
332 | } | |
333 | return 0; | |
334 | } | |
335 | if (len > 0 && model_name[len - 1] == 0) { | |
336 | wpa_hexdump_ascii(MSG_INFO, "WPS-STRICT: Invalid Model Name " | |
337 | "attribute value", model_name, len); | |
338 | return -1; | |
339 | } | |
340 | return 0; | |
341 | } | |
342 | ||
343 | ||
344 | static int wps_validate_model_number(const u8 *model_number, size_t len, | |
345 | int mandatory) | |
346 | { | |
347 | if (model_number == NULL) { | |
348 | if (mandatory) { | |
349 | wpa_printf(MSG_INFO, "WPS-STRICT: Model Number " | |
350 | "attribute missing"); | |
351 | return -1; | |
352 | } | |
353 | return 0; | |
354 | } | |
355 | if (len > 0 && model_number[len - 1] == 0) { | |
356 | wpa_hexdump_ascii(MSG_INFO, "WPS-STRICT: Invalid Model Number " | |
357 | "attribute value", model_number, len); | |
358 | return -1; | |
359 | } | |
360 | return 0; | |
361 | } | |
362 | ||
363 | ||
364 | static int wps_validate_serial_number(const u8 *serial_number, size_t len, | |
365 | int mandatory) | |
366 | { | |
367 | if (serial_number == NULL) { | |
368 | if (mandatory) { | |
369 | wpa_printf(MSG_INFO, "WPS-STRICT: Serial Number " | |
370 | "attribute missing"); | |
371 | return -1; | |
372 | } | |
373 | return 0; | |
374 | } | |
375 | if (len > 0 && serial_number[len - 1] == 0) { | |
376 | wpa_hexdump_ascii(MSG_INFO, "WPS-STRICT: Invalid Serial " | |
377 | "Number attribute value", | |
378 | serial_number, len); | |
379 | return -1; | |
380 | } | |
381 | return 0; | |
382 | } | |
383 | ||
384 | ||
385 | static int wps_validate_dev_name(const u8 *dev_name, size_t len, | |
386 | int mandatory) | |
387 | { | |
388 | if (dev_name == NULL) { | |
389 | if (mandatory) { | |
390 | wpa_printf(MSG_INFO, "WPS-STRICT: Device Name " | |
391 | "attribute missing"); | |
392 | return -1; | |
393 | } | |
394 | return 0; | |
395 | } | |
396 | if (len > 0 && dev_name[len - 1] == 0) { | |
397 | wpa_hexdump_ascii(MSG_INFO, "WPS-STRICT: Invalid Device Name " | |
398 | "attribute value", dev_name, len); | |
399 | return -1; | |
400 | } | |
401 | return 0; | |
402 | } | |
403 | ||
404 | ||
405 | static int wps_validate_request_to_enroll(const u8 *request_to_enroll, | |
406 | int mandatory) | |
407 | { | |
408 | if (request_to_enroll == NULL) { | |
409 | if (mandatory) { | |
410 | wpa_printf(MSG_INFO, "WPS-STRICT: Request to Enroll " | |
411 | "attribute missing"); | |
412 | return -1; | |
413 | } | |
414 | return 0; | |
415 | } | |
416 | if (*request_to_enroll > 0x01) { | |
417 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Request to Enroll " | |
418 | "attribute value 0x%x", *request_to_enroll); | |
419 | return -1; | |
420 | } | |
421 | return 0; | |
422 | } | |
423 | ||
424 | ||
425 | static int wps_validate_req_dev_type(const u8 *req_dev_type[], size_t num, | |
426 | int mandatory) | |
427 | { | |
428 | if (num == 0) { | |
429 | if (mandatory) { | |
430 | wpa_printf(MSG_INFO, "WPS-STRICT: Requested Device " | |
431 | "Type attribute missing"); | |
432 | return -1; | |
433 | } | |
434 | return 0; | |
435 | } | |
436 | return 0; | |
437 | } | |
438 | ||
439 | ||
440 | static int wps_validate_wps_state(const u8 *wps_state, int mandatory) | |
441 | { | |
442 | if (wps_state == NULL) { | |
443 | if (mandatory) { | |
444 | wpa_printf(MSG_INFO, "WPS-STRICT: Wi-Fi Protected " | |
445 | "Setup State attribute missing"); | |
446 | return -1; | |
447 | } | |
448 | return 0; | |
449 | } | |
450 | if (*wps_state != WPS_STATE_NOT_CONFIGURED && | |
451 | *wps_state != WPS_STATE_CONFIGURED) { | |
452 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Wi-Fi Protected " | |
453 | "Setup State attribute value 0x%x", *wps_state); | |
454 | return -1; | |
455 | } | |
456 | return 0; | |
457 | } | |
458 | ||
459 | ||
460 | static int wps_validate_ap_setup_locked(const u8 *ap_setup_locked, | |
461 | int mandatory) | |
462 | { | |
463 | if (ap_setup_locked == NULL) { | |
464 | if (mandatory) { | |
465 | wpa_printf(MSG_INFO, "WPS-STRICT: AP Setup Locked " | |
466 | "attribute missing"); | |
467 | return -1; | |
468 | } | |
469 | return 0; | |
470 | } | |
471 | if (*ap_setup_locked > 1) { | |
472 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid AP Setup Locked " | |
473 | "attribute value 0x%x", *ap_setup_locked); | |
474 | return -1; | |
475 | } | |
476 | return 0; | |
477 | } | |
478 | ||
479 | ||
480 | static int wps_validate_selected_registrar(const u8 *selected_registrar, | |
481 | int mandatory) | |
482 | { | |
483 | if (selected_registrar == NULL) { | |
484 | if (mandatory) { | |
485 | wpa_printf(MSG_INFO, "WPS-STRICT: Selected Registrar " | |
486 | "attribute missing"); | |
487 | return -1; | |
488 | } | |
489 | return 0; | |
490 | } | |
491 | if (*selected_registrar > 1) { | |
492 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Selected Registrar " | |
493 | "attribute value 0x%x", *selected_registrar); | |
494 | return -1; | |
495 | } | |
496 | return 0; | |
497 | } | |
498 | ||
499 | ||
500 | static int wps_validate_sel_reg_config_methods(const u8 *config_methods, | |
501 | int wps2, int mandatory) | |
502 | { | |
503 | u16 val; | |
504 | ||
505 | if (config_methods == NULL) { | |
506 | if (mandatory) { | |
507 | wpa_printf(MSG_INFO, "WPS-STRICT: Selected Registrar " | |
508 | "Configuration Methods attribute missing"); | |
509 | return -1; | |
510 | } | |
511 | return 0; | |
512 | } | |
513 | ||
514 | val = WPA_GET_BE16(config_methods); | |
515 | if (!valid_config_methods(val, wps2)) { | |
516 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Selected Registrar " | |
517 | "Configuration Methods attribute value 0x%04x", | |
518 | val); | |
519 | return -1; | |
520 | } | |
521 | return 0; | |
522 | } | |
523 | ||
524 | ||
525 | static int wps_validate_authorized_macs(const u8 *authorized_macs, size_t len, | |
526 | int mandatory) | |
527 | { | |
528 | if (authorized_macs == NULL) { | |
529 | if (mandatory) { | |
530 | wpa_printf(MSG_INFO, "WPS-STRICT: Authorized MACs " | |
531 | "attribute missing"); | |
532 | return -1; | |
533 | } | |
534 | return 0; | |
535 | } | |
536 | if (len > 30 && (len % ETH_ALEN) != 0) { | |
537 | wpa_hexdump(MSG_INFO, "WPS-STRICT: Invalid Authorized " | |
538 | "MACs attribute value", authorized_macs, len); | |
539 | return -1; | |
540 | } | |
541 | return 0; | |
542 | } | |
543 | ||
544 | ||
545 | static int wps_validate_msg_type(const u8 *msg_type, int mandatory) | |
546 | { | |
547 | if (msg_type == NULL) { | |
548 | if (mandatory) { | |
549 | wpa_printf(MSG_INFO, "WPS-STRICT: Message Type " | |
550 | "attribute missing"); | |
551 | return -1; | |
552 | } | |
553 | return 0; | |
554 | } | |
555 | if (*msg_type < WPS_Beacon || *msg_type > WPS_WSC_DONE) { | |
556 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Message Type " | |
557 | "attribute value 0x%x", *msg_type); | |
558 | return -1; | |
559 | } | |
560 | return 0; | |
561 | } | |
562 | ||
563 | ||
564 | static int wps_validate_mac_addr(const u8 *mac_addr, int mandatory) | |
565 | { | |
566 | if (mac_addr == NULL) { | |
567 | if (mandatory) { | |
568 | wpa_printf(MSG_INFO, "WPS-STRICT: MAC Address " | |
569 | "attribute missing"); | |
570 | return -1; | |
571 | } | |
572 | return 0; | |
573 | } | |
574 | if (mac_addr[0] & 0x01) { | |
575 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid MAC Address " | |
576 | "attribute value " MACSTR, MAC2STR(mac_addr)); | |
577 | return -1; | |
578 | } | |
579 | return 0; | |
580 | } | |
581 | ||
582 | ||
583 | static int wps_validate_enrollee_nonce(const u8 *enrollee_nonce, int mandatory) | |
584 | { | |
585 | if (enrollee_nonce == NULL) { | |
586 | if (mandatory) { | |
587 | wpa_printf(MSG_INFO, "WPS-STRICT: Enrollee Nonce " | |
588 | "attribute missing"); | |
589 | return -1; | |
590 | } | |
591 | return 0; | |
592 | } | |
593 | return 0; | |
594 | } | |
595 | ||
596 | ||
597 | static int wps_validate_registrar_nonce(const u8 *registrar_nonce, | |
598 | int mandatory) | |
599 | { | |
600 | if (registrar_nonce == NULL) { | |
601 | if (mandatory) { | |
602 | wpa_printf(MSG_INFO, "WPS-STRICT: Registrar Nonce " | |
603 | "attribute missing"); | |
604 | return -1; | |
605 | } | |
606 | return 0; | |
607 | } | |
608 | return 0; | |
609 | } | |
610 | ||
611 | ||
612 | static int wps_validate_public_key(const u8 *public_key, size_t len, | |
613 | int mandatory) | |
614 | { | |
615 | if (public_key == NULL) { | |
616 | if (mandatory) { | |
617 | wpa_printf(MSG_INFO, "WPS-STRICT: Public Key " | |
618 | "attribute missing"); | |
619 | return -1; | |
620 | } | |
621 | return 0; | |
622 | } | |
623 | if (len != 192) { | |
624 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Public Key " | |
625 | "attribute length %d", (int) len); | |
626 | return -1; | |
627 | } | |
628 | return 0; | |
629 | } | |
630 | ||
631 | ||
632 | static int num_bits_set(u16 val) | |
633 | { | |
634 | int c; | |
635 | for (c = 0; val; c++) | |
636 | val &= val - 1; | |
637 | return c; | |
638 | } | |
639 | ||
640 | ||
641 | static int wps_validate_auth_type_flags(const u8 *flags, int mandatory) | |
642 | { | |
643 | u16 val; | |
644 | ||
645 | if (flags == NULL) { | |
646 | if (mandatory) { | |
647 | wpa_printf(MSG_INFO, "WPS-STRICT: Authentication Type " | |
648 | "Flags attribute missing"); | |
649 | return -1; | |
650 | } | |
651 | return 0; | |
652 | } | |
653 | val = WPA_GET_BE16(flags); | |
654 | if ((val & ~WPS_AUTH_TYPES) || !(val & WPS_AUTH_WPA2PSK)) { | |
655 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Authentication Type " | |
656 | "Flags attribute value 0x%04x", val); | |
657 | return -1; | |
658 | } | |
659 | return 0; | |
660 | } | |
661 | ||
662 | ||
663 | static int wps_validate_auth_type(const u8 *type, int mandatory) | |
664 | { | |
665 | u16 val; | |
666 | ||
667 | if (type == NULL) { | |
668 | if (mandatory) { | |
669 | wpa_printf(MSG_INFO, "WPS-STRICT: Authentication Type " | |
670 | "attribute missing"); | |
671 | return -1; | |
672 | } | |
673 | return 0; | |
674 | } | |
675 | val = WPA_GET_BE16(type); | |
676 | if ((val & ~WPS_AUTH_TYPES) || val == 0 || | |
677 | (num_bits_set(val) > 1 && | |
678 | val != (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK))) { | |
679 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Authentication Type " | |
680 | "attribute value 0x%04x", val); | |
681 | return -1; | |
682 | } | |
683 | return 0; | |
684 | } | |
685 | ||
686 | ||
687 | static int wps_validate_encr_type_flags(const u8 *flags, int mandatory) | |
688 | { | |
689 | u16 val; | |
690 | ||
691 | if (flags == NULL) { | |
692 | if (mandatory) { | |
693 | wpa_printf(MSG_INFO, "WPS-STRICT: Encryption Type " | |
694 | "Flags attribute missing"); | |
695 | return -1; | |
696 | } | |
697 | return 0; | |
698 | } | |
699 | val = WPA_GET_BE16(flags); | |
700 | if ((val & ~WPS_ENCR_TYPES) || !(val & WPS_ENCR_AES)) { | |
701 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Encryption Type " | |
702 | "Flags attribute value 0x%04x", val); | |
703 | return -1; | |
704 | } | |
705 | return 0; | |
706 | } | |
707 | ||
708 | ||
709 | static int wps_validate_encr_type(const u8 *type, int mandatory) | |
710 | { | |
711 | u16 val; | |
712 | ||
713 | if (type == NULL) { | |
714 | if (mandatory) { | |
715 | wpa_printf(MSG_INFO, "WPS-STRICT: Encryption Type " | |
716 | "attribute missing"); | |
717 | return -1; | |
718 | } | |
719 | return 0; | |
720 | } | |
721 | val = WPA_GET_BE16(type); | |
722 | if ((val & ~WPS_ENCR_TYPES) || val == 0 || | |
723 | (num_bits_set(val) > 1 && val != (WPS_ENCR_TKIP | WPS_ENCR_AES))) { | |
724 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Encryption Type " | |
725 | "attribute value 0x%04x", val); | |
726 | return -1; | |
727 | } | |
728 | return 0; | |
729 | } | |
730 | ||
731 | ||
732 | static int wps_validate_conn_type_flags(const u8 *flags, int mandatory) | |
733 | { | |
734 | if (flags == NULL) { | |
735 | if (mandatory) { | |
736 | wpa_printf(MSG_INFO, "WPS-STRICT: Connection Type " | |
737 | "Flags attribute missing"); | |
738 | return -1; | |
739 | } | |
740 | return 0; | |
741 | } | |
742 | if ((*flags & ~(WPS_CONN_ESS | WPS_CONN_IBSS)) || | |
743 | !(*flags & WPS_CONN_ESS)) { | |
744 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Connection Type " | |
745 | "Flags attribute value 0x%02x", *flags); | |
746 | return -1; | |
747 | } | |
748 | return 0; | |
749 | } | |
750 | ||
751 | ||
752 | static int wps_validate_os_version(const u8 *os_version, int mandatory) | |
753 | { | |
754 | if (os_version == NULL) { | |
755 | if (mandatory) { | |
756 | wpa_printf(MSG_INFO, "WPS-STRICT: OS Version " | |
757 | "attribute missing"); | |
758 | return -1; | |
759 | } | |
760 | return 0; | |
761 | } | |
762 | return 0; | |
763 | } | |
764 | ||
765 | ||
766 | static int wps_validate_authenticator(const u8 *authenticator, int mandatory) | |
767 | { | |
768 | if (authenticator == NULL) { | |
769 | if (mandatory) { | |
770 | wpa_printf(MSG_INFO, "WPS-STRICT: Authenticator " | |
771 | "attribute missing"); | |
772 | return -1; | |
773 | } | |
774 | return 0; | |
775 | } | |
776 | return 0; | |
777 | } | |
778 | ||
779 | ||
780 | static int wps_validate_e_hash1(const u8 *hash, int mandatory) | |
781 | { | |
782 | if (hash == NULL) { | |
783 | if (mandatory) { | |
784 | wpa_printf(MSG_INFO, "WPS-STRICT: E-Hash1 " | |
785 | "attribute missing"); | |
786 | return -1; | |
787 | } | |
788 | return 0; | |
789 | } | |
790 | return 0; | |
791 | } | |
792 | ||
793 | ||
794 | static int wps_validate_e_hash2(const u8 *hash, int mandatory) | |
795 | { | |
796 | if (hash == NULL) { | |
797 | if (mandatory) { | |
798 | wpa_printf(MSG_INFO, "WPS-STRICT: E-Hash2 " | |
799 | "attribute missing"); | |
800 | return -1; | |
801 | } | |
802 | return 0; | |
803 | } | |
804 | return 0; | |
805 | } | |
806 | ||
807 | ||
808 | static int wps_validate_r_hash1(const u8 *hash, int mandatory) | |
809 | { | |
810 | if (hash == NULL) { | |
811 | if (mandatory) { | |
812 | wpa_printf(MSG_INFO, "WPS-STRICT: R-Hash1 " | |
813 | "attribute missing"); | |
814 | return -1; | |
815 | } | |
816 | return 0; | |
817 | } | |
818 | return 0; | |
819 | } | |
820 | ||
821 | ||
822 | static int wps_validate_r_hash2(const u8 *hash, int mandatory) | |
823 | { | |
824 | if (hash == NULL) { | |
825 | if (mandatory) { | |
826 | wpa_printf(MSG_INFO, "WPS-STRICT: R-Hash2 " | |
827 | "attribute missing"); | |
828 | return -1; | |
829 | } | |
830 | return 0; | |
831 | } | |
832 | return 0; | |
833 | } | |
834 | ||
835 | ||
836 | static int wps_validate_encr_settings(const u8 *encr_settings, size_t len, | |
837 | int mandatory) | |
838 | { | |
839 | if (encr_settings == NULL) { | |
840 | if (mandatory) { | |
841 | wpa_printf(MSG_INFO, "WPS-STRICT: Encrypted Settings " | |
842 | "attribute missing"); | |
843 | return -1; | |
844 | } | |
845 | return 0; | |
846 | } | |
847 | if (len < 16) { | |
848 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Encrypted Settings " | |
849 | "attribute length %d", (int) len); | |
850 | return -1; | |
851 | } | |
852 | return 0; | |
853 | } | |
854 | ||
855 | ||
856 | static int wps_validate_settings_delay_time(const u8 *delay, int mandatory) | |
857 | { | |
858 | if (delay == NULL) { | |
859 | if (mandatory) { | |
860 | wpa_printf(MSG_INFO, "WPS-STRICT: Settings Delay Time " | |
861 | "attribute missing"); | |
862 | return -1; | |
863 | } | |
864 | return 0; | |
865 | } | |
866 | return 0; | |
867 | } | |
868 | ||
869 | ||
870 | static int wps_validate_r_snonce1(const u8 *nonce, int mandatory) | |
871 | { | |
872 | if (nonce == NULL) { | |
873 | if (mandatory) { | |
874 | wpa_printf(MSG_INFO, "WPS-STRICT: R-SNonce1 " | |
875 | "attribute missing"); | |
876 | return -1; | |
877 | } | |
878 | return 0; | |
879 | } | |
880 | return 0; | |
881 | } | |
882 | ||
883 | ||
884 | static int wps_validate_r_snonce2(const u8 *nonce, int mandatory) | |
885 | { | |
886 | if (nonce == NULL) { | |
887 | if (mandatory) { | |
888 | wpa_printf(MSG_INFO, "WPS-STRICT: R-SNonce2 " | |
889 | "attribute missing"); | |
890 | return -1; | |
891 | } | |
892 | return 0; | |
893 | } | |
894 | return 0; | |
895 | } | |
896 | ||
897 | ||
898 | static int wps_validate_e_snonce1(const u8 *nonce, int mandatory) | |
899 | { | |
900 | if (nonce == NULL) { | |
901 | if (mandatory) { | |
902 | wpa_printf(MSG_INFO, "WPS-STRICT: E-SNonce1 " | |
903 | "attribute missing"); | |
904 | return -1; | |
905 | } | |
906 | return 0; | |
907 | } | |
908 | return 0; | |
909 | } | |
910 | ||
911 | ||
912 | static int wps_validate_e_snonce2(const u8 *nonce, int mandatory) | |
913 | { | |
914 | if (nonce == NULL) { | |
915 | if (mandatory) { | |
916 | wpa_printf(MSG_INFO, "WPS-STRICT: E-SNonce2 " | |
917 | "attribute missing"); | |
918 | return -1; | |
919 | } | |
920 | return 0; | |
921 | } | |
922 | return 0; | |
923 | } | |
924 | ||
925 | ||
926 | static int wps_validate_key_wrap_auth(const u8 *auth, int mandatory) | |
927 | { | |
928 | if (auth == NULL) { | |
929 | if (mandatory) { | |
930 | wpa_printf(MSG_INFO, "WPS-STRICT: Key Wrap " | |
931 | "Authenticator attribute missing"); | |
932 | return -1; | |
933 | } | |
934 | return 0; | |
935 | } | |
936 | return 0; | |
937 | } | |
938 | ||
939 | ||
940 | static int wps_validate_ssid(const u8 *ssid, size_t ssid_len, int mandatory) | |
941 | { | |
942 | if (ssid == NULL) { | |
943 | if (mandatory) { | |
944 | wpa_printf(MSG_INFO, "WPS-STRICT: SSID " | |
945 | "attribute missing"); | |
946 | return -1; | |
947 | } | |
948 | return 0; | |
949 | } | |
950 | if (ssid_len == 0 || ssid[ssid_len - 1] == 0) { | |
951 | wpa_hexdump_ascii(MSG_INFO, "WPS-STRICT: Invalid SSID " | |
952 | "attribute value", ssid, ssid_len); | |
953 | return -1; | |
954 | } | |
955 | return 0; | |
956 | } | |
957 | ||
958 | ||
959 | static int wps_validate_network_key_index(const u8 *idx, int mandatory) | |
960 | { | |
961 | if (idx == NULL) { | |
962 | if (mandatory) { | |
963 | wpa_printf(MSG_INFO, "WPS-STRICT: Network Key Index " | |
964 | "attribute missing"); | |
965 | return -1; | |
966 | } | |
967 | return 0; | |
968 | } | |
969 | return 0; | |
970 | } | |
971 | ||
972 | ||
973 | static int wps_validate_network_idx(const u8 *idx, int mandatory) | |
974 | { | |
975 | if (idx == NULL) { | |
976 | if (mandatory) { | |
977 | wpa_printf(MSG_INFO, "WPS-STRICT: Network Index " | |
978 | "attribute missing"); | |
979 | return -1; | |
980 | } | |
981 | return 0; | |
982 | } | |
983 | return 0; | |
984 | } | |
985 | ||
986 | ||
987 | static int wps_validate_network_key(const u8 *key, size_t key_len, | |
988 | const u8 *encr_type, int mandatory) | |
989 | { | |
990 | if (key == NULL) { | |
991 | if (mandatory) { | |
992 | wpa_printf(MSG_INFO, "WPS-STRICT: Network Key " | |
993 | "attribute missing"); | |
994 | return -1; | |
995 | } | |
996 | return 0; | |
997 | } | |
998 | if (((encr_type == NULL || WPA_GET_BE16(encr_type) != WPS_ENCR_WEP) && | |
999 | key_len > 8 && key_len < 64 && key[key_len - 1] == 0) || | |
1000 | key_len > 64) { | |
1001 | wpa_hexdump_ascii_key(MSG_INFO, "WPS-STRICT: Invalid Network " | |
1002 | "Key attribute value", key, key_len); | |
1003 | return -1; | |
1004 | } | |
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | ||
1009 | static int wps_validate_network_key_shareable(const u8 *val, int mandatory) | |
1010 | { | |
1011 | if (val == NULL) { | |
1012 | if (mandatory) { | |
1013 | wpa_printf(MSG_INFO, "WPS-STRICT: Network Key " | |
1014 | "Shareable attribute missing"); | |
1015 | return -1; | |
1016 | } | |
1017 | return 0; | |
1018 | } | |
1019 | if (*val > 1) { | |
1020 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Network Key " | |
1021 | "Shareable attribute value 0x%x", *val); | |
1022 | return -1; | |
1023 | } | |
1024 | return 0; | |
1025 | } | |
1026 | ||
1027 | ||
1028 | static int wps_validate_cred(const u8 *cred, size_t len) | |
1029 | { | |
1030 | struct wps_parse_attr attr; | |
1031 | struct wpabuf buf; | |
1032 | ||
1033 | if (cred == NULL) | |
1034 | return -1; | |
1035 | wpabuf_set(&buf, cred, len); | |
1036 | if (wps_parse_msg(&buf, &attr) < 0) { | |
1037 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse Credential"); | |
1038 | return -1; | |
1039 | } | |
1040 | ||
5fabd9fe | 1041 | if (wps_validate_network_idx(attr.network_idx, 1) || |
54f489be JM |
1042 | wps_validate_ssid(attr.ssid, attr.ssid_len, 1) || |
1043 | wps_validate_auth_type(attr.auth_type, 1) || | |
1044 | wps_validate_encr_type(attr.encr_type, 1) || | |
1045 | wps_validate_network_key_index(attr.network_key_idx, 0) || | |
1046 | wps_validate_network_key(attr.network_key, attr.network_key_len, | |
1047 | attr.encr_type, 1) || | |
1048 | wps_validate_mac_addr(attr.mac_addr, 1) || | |
1049 | wps_validate_network_key_shareable(attr.network_key_shareable, 0)) | |
1050 | { | |
1051 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Credential"); | |
1052 | return -1; | |
1053 | } | |
1054 | ||
1055 | ||
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | ||
1060 | static int wps_validate_credential(const u8 *cred[], size_t len[], size_t num, | |
1061 | int mandatory) | |
1062 | { | |
1063 | size_t i; | |
1064 | ||
1065 | if (num == 0) { | |
1066 | if (mandatory) { | |
1067 | wpa_printf(MSG_INFO, "WPS-STRICT: Credential " | |
1068 | "attribute missing"); | |
1069 | return -1; | |
1070 | } | |
1071 | return 0; | |
1072 | } | |
1073 | ||
1074 | for (i = 0; i < num; i++) { | |
1075 | if (wps_validate_cred(cred[i], len[i]) < 0) | |
1076 | return -1; | |
1077 | } | |
1078 | ||
1079 | return 0; | |
1080 | } | |
1081 | ||
1082 | ||
1083 | int wps_validate_beacon(const struct wpabuf *wps_ie) | |
1084 | { | |
1085 | struct wps_parse_attr attr; | |
1086 | int wps2, sel_reg; | |
1087 | ||
1088 | if (wps_ie == NULL) { | |
1089 | wpa_printf(MSG_INFO, "WPS-STRICT: No WPS IE in Beacon frame"); | |
1090 | return -1; | |
1091 | } | |
1092 | if (wps_parse_msg(wps_ie, &attr) < 0) { | |
1093 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse WPS IE in " | |
1094 | "Beacon frame"); | |
1095 | return -1; | |
1096 | } | |
1097 | ||
1098 | wps2 = attr.version2 != NULL; | |
1099 | sel_reg = attr.selected_registrar != NULL && | |
1100 | *attr.selected_registrar != 0; | |
1101 | if (wps_validate_version(attr.version, 1) || | |
1102 | wps_validate_wps_state(attr.wps_state, 1) || | |
1103 | wps_validate_ap_setup_locked(attr.ap_setup_locked, 0) || | |
1104 | wps_validate_selected_registrar(attr.selected_registrar, 0) || | |
1105 | wps_validate_dev_password_id(attr.dev_password_id, sel_reg) || | |
1106 | wps_validate_sel_reg_config_methods(attr.sel_reg_config_methods, | |
1107 | wps2, sel_reg) || | |
1108 | wps_validate_uuid_e(attr.uuid_e, 0) || | |
1109 | wps_validate_rf_bands(attr.rf_bands, 0) || | |
1110 | wps_validate_version2(attr.version2, wps2) || | |
1111 | wps_validate_authorized_macs(attr.authorized_macs, | |
1112 | attr.authorized_macs_len, 0)) { | |
1113 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Beacon frame"); | |
1114 | return -1; | |
1115 | } | |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | ||
ff28ccaf JM |
1121 | int wps_validate_beacon_probe_resp(const struct wpabuf *wps_ie, int probe, |
1122 | const u8 *addr) | |
54f489be JM |
1123 | { |
1124 | struct wps_parse_attr attr; | |
1125 | int wps2, sel_reg; | |
1126 | ||
1127 | if (wps_ie == NULL) { | |
1128 | wpa_printf(MSG_INFO, "WPS-STRICT: No WPS IE in " | |
1129 | "%sProbe Response frame", probe ? "" : "Beacon/"); | |
1130 | return -1; | |
1131 | } | |
1132 | if (wps_parse_msg(wps_ie, &attr) < 0) { | |
1133 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse WPS IE in " | |
1134 | "%sProbe Response frame", probe ? "" : "Beacon/"); | |
1135 | return -1; | |
1136 | } | |
1137 | ||
1138 | wps2 = attr.version2 != NULL; | |
1139 | sel_reg = attr.selected_registrar != NULL && | |
1140 | *attr.selected_registrar != 0; | |
1141 | if (wps_validate_version(attr.version, 1) || | |
1142 | wps_validate_wps_state(attr.wps_state, 1) || | |
1143 | wps_validate_ap_setup_locked(attr.ap_setup_locked, 0) || | |
1144 | wps_validate_selected_registrar(attr.selected_registrar, 0) || | |
1145 | wps_validate_dev_password_id(attr.dev_password_id, sel_reg) || | |
1146 | wps_validate_sel_reg_config_methods(attr.sel_reg_config_methods, | |
1147 | wps2, sel_reg) || | |
1148 | wps_validate_response_type(attr.response_type, probe) || | |
1149 | wps_validate_uuid_e(attr.uuid_e, probe) || | |
1150 | wps_validate_manufacturer(attr.manufacturer, attr.manufacturer_len, | |
1151 | probe) || | |
1152 | wps_validate_model_name(attr.model_name, attr.model_name_len, | |
1153 | probe) || | |
1154 | wps_validate_model_number(attr.model_number, attr.model_number_len, | |
1155 | probe) || | |
1156 | wps_validate_serial_number(attr.serial_number, | |
1157 | attr.serial_number_len, probe) || | |
1158 | wps_validate_primary_dev_type(attr.primary_dev_type, probe) || | |
1159 | wps_validate_dev_name(attr.dev_name, attr.dev_name_len, probe) || | |
1160 | wps_validate_ap_config_methods(attr.config_methods, wps2, probe) || | |
1161 | wps_validate_rf_bands(attr.rf_bands, 0) || | |
1162 | wps_validate_version2(attr.version2, wps2) || | |
1163 | wps_validate_authorized_macs(attr.authorized_macs, | |
1164 | attr.authorized_macs_len, 0)) { | |
1165 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid %sProbe Response " | |
ff28ccaf JM |
1166 | "frame from " MACSTR, probe ? "" : "Beacon/", |
1167 | MAC2STR(addr)); | |
6a447723 JM |
1168 | #ifdef WPS_STRICT_WPS2 |
1169 | if (wps2) | |
1170 | return -1; | |
1171 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1172 | return -1; |
6a447723 | 1173 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1174 | } |
1175 | ||
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | ||
baf7081c | 1180 | int wps_validate_probe_req(const struct wpabuf *wps_ie, const u8 *addr) |
54f489be JM |
1181 | { |
1182 | struct wps_parse_attr attr; | |
1183 | int wps2; | |
1184 | ||
1185 | if (wps_ie == NULL) { | |
1186 | wpa_printf(MSG_INFO, "WPS-STRICT: No WPS IE in " | |
1187 | "Probe Request frame"); | |
1188 | return -1; | |
1189 | } | |
1190 | if (wps_parse_msg(wps_ie, &attr) < 0) { | |
1191 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse WPS IE in " | |
1192 | "Probe Request frame"); | |
1193 | return -1; | |
1194 | } | |
1195 | ||
1196 | wps2 = attr.version2 != NULL; | |
1197 | if (wps_validate_version(attr.version, 1) || | |
1198 | wps_validate_request_type(attr.request_type, 1) || | |
1199 | wps_validate_config_methods(attr.config_methods, wps2, 1) || | |
1200 | wps_validate_uuid_e(attr.uuid_e, attr.uuid_r == NULL) || | |
1201 | wps_validate_uuid_r(attr.uuid_r, attr.uuid_e == NULL) || | |
1202 | wps_validate_primary_dev_type(attr.primary_dev_type, 1) || | |
1203 | wps_validate_rf_bands(attr.rf_bands, 1) || | |
1204 | wps_validate_assoc_state(attr.assoc_state, 1) || | |
1205 | wps_validate_config_error(attr.config_error, 1) || | |
1206 | wps_validate_dev_password_id(attr.dev_password_id, 1) || | |
1207 | wps_validate_version2(attr.version2, wps2) || | |
1208 | wps_validate_manufacturer(attr.manufacturer, attr.manufacturer_len, | |
1209 | wps2) || | |
1210 | wps_validate_model_name(attr.model_name, attr.model_name_len, | |
1211 | wps2) || | |
1212 | wps_validate_model_number(attr.model_number, attr.model_number_len, | |
1213 | wps2) || | |
1214 | wps_validate_dev_name(attr.dev_name, attr.dev_name_len, wps2) || | |
1215 | wps_validate_request_to_enroll(attr.request_to_enroll, 0) || | |
1216 | wps_validate_req_dev_type(attr.req_dev_type, attr.num_req_dev_type, | |
1217 | 0)) { | |
1218 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid Probe Request " | |
baf7081c | 1219 | "frame from " MACSTR, MAC2STR(addr)); |
54f489be JM |
1220 | return -1; |
1221 | } | |
1222 | ||
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | ||
1227 | int wps_validate_assoc_req(const struct wpabuf *wps_ie) | |
1228 | { | |
1229 | struct wps_parse_attr attr; | |
1230 | int wps2; | |
1231 | ||
1232 | if (wps_ie == NULL) { | |
1233 | wpa_printf(MSG_INFO, "WPS-STRICT: No WPS IE in " | |
1234 | "(Re)Association Request frame"); | |
1235 | return -1; | |
1236 | } | |
1237 | if (wps_parse_msg(wps_ie, &attr) < 0) { | |
1238 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse WPS IE in " | |
1239 | "(Re)Association Request frame"); | |
1240 | return -1; | |
1241 | } | |
1242 | ||
1243 | wps2 = attr.version2 != NULL; | |
1244 | if (wps_validate_version(attr.version, 1) || | |
1245 | wps_validate_request_type(attr.request_type, 1) || | |
1246 | wps_validate_version2(attr.version2, wps2)) { | |
1247 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid (Re)Association " | |
1248 | "Request frame"); | |
1249 | return -1; | |
1250 | } | |
1251 | ||
1252 | return 0; | |
1253 | } | |
1254 | ||
1255 | ||
1256 | int wps_validate_assoc_resp(const struct wpabuf *wps_ie) | |
1257 | { | |
1258 | struct wps_parse_attr attr; | |
1259 | int wps2; | |
1260 | ||
1261 | if (wps_ie == NULL) { | |
1262 | wpa_printf(MSG_INFO, "WPS-STRICT: No WPS IE in " | |
1263 | "(Re)Association Response frame"); | |
1264 | return -1; | |
1265 | } | |
1266 | if (wps_parse_msg(wps_ie, &attr) < 0) { | |
1267 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse WPS IE in " | |
1268 | "(Re)Association Response frame"); | |
1269 | return -1; | |
1270 | } | |
1271 | ||
1272 | wps2 = attr.version2 != NULL; | |
1273 | if (wps_validate_version(attr.version, 1) || | |
82fb1847 | 1274 | wps_validate_response_type(attr.response_type, 1) || |
54f489be JM |
1275 | wps_validate_version2(attr.version2, wps2)) { |
1276 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid (Re)Association " | |
1277 | "Response frame"); | |
1278 | return -1; | |
1279 | } | |
1280 | ||
1281 | return 0; | |
1282 | } | |
1283 | ||
1284 | ||
1285 | int wps_validate_m1(const struct wpabuf *tlvs) | |
1286 | { | |
1287 | struct wps_parse_attr attr; | |
1288 | int wps2; | |
1289 | ||
1290 | if (tlvs == NULL) { | |
1291 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M1"); | |
1292 | return -1; | |
1293 | } | |
1294 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1295 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1296 | "in M1"); | |
1297 | return -1; | |
1298 | } | |
1299 | ||
1300 | wps2 = attr.version2 != NULL; | |
1301 | if (wps_validate_version(attr.version, 1) || | |
1302 | wps_validate_msg_type(attr.msg_type, 1) || | |
1303 | wps_validate_uuid_e(attr.uuid_e, 1) || | |
1304 | wps_validate_mac_addr(attr.mac_addr, 1) || | |
1305 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1306 | wps_validate_public_key(attr.public_key, attr.public_key_len, 1) || | |
1307 | wps_validate_auth_type_flags(attr.auth_type_flags, 1) || | |
1308 | wps_validate_encr_type_flags(attr.encr_type_flags, 1) || | |
1309 | wps_validate_conn_type_flags(attr.conn_type_flags, 1) || | |
1310 | wps_validate_config_methods(attr.config_methods, wps2, 1) || | |
1311 | wps_validate_wps_state(attr.wps_state, 1) || | |
1312 | wps_validate_manufacturer(attr.manufacturer, attr.manufacturer_len, | |
1313 | 1) || | |
1314 | wps_validate_model_name(attr.model_name, attr.model_name_len, 1) || | |
1315 | wps_validate_model_number(attr.model_number, attr.model_number_len, | |
1316 | 1) || | |
1317 | wps_validate_serial_number(attr.serial_number, | |
1318 | attr.serial_number_len, 1) || | |
1319 | wps_validate_primary_dev_type(attr.primary_dev_type, 1) || | |
1320 | wps_validate_dev_name(attr.dev_name, attr.dev_name_len, 1) || | |
1321 | wps_validate_rf_bands(attr.rf_bands, 1) || | |
1322 | wps_validate_assoc_state(attr.assoc_state, 1) || | |
1323 | wps_validate_dev_password_id(attr.dev_password_id, 1) || | |
1324 | wps_validate_config_error(attr.config_error, 1) || | |
1325 | wps_validate_os_version(attr.os_version, 1) || | |
1326 | wps_validate_version2(attr.version2, wps2) || | |
1327 | wps_validate_request_to_enroll(attr.request_to_enroll, 0)) { | |
1328 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M1"); | |
e69b86b7 JM |
1329 | #ifdef WPS_STRICT_WPS2 |
1330 | if (wps2) | |
1331 | return -1; | |
1332 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1333 | return -1; |
e69b86b7 | 1334 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1335 | } |
1336 | ||
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | ||
1341 | int wps_validate_m2(const struct wpabuf *tlvs) | |
1342 | { | |
1343 | struct wps_parse_attr attr; | |
1344 | int wps2; | |
1345 | ||
1346 | if (tlvs == NULL) { | |
1347 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M2"); | |
1348 | return -1; | |
1349 | } | |
1350 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1351 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1352 | "in M2"); | |
1353 | return -1; | |
1354 | } | |
1355 | ||
1356 | wps2 = attr.version2 != NULL; | |
1357 | if (wps_validate_version(attr.version, 1) || | |
1358 | wps_validate_msg_type(attr.msg_type, 1) || | |
1359 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1360 | wps_validate_registrar_nonce(attr.registrar_nonce, 1) || | |
1361 | wps_validate_uuid_r(attr.uuid_r, 1) || | |
1362 | wps_validate_public_key(attr.public_key, attr.public_key_len, 1) || | |
1363 | wps_validate_auth_type_flags(attr.auth_type_flags, 1) || | |
1364 | wps_validate_encr_type_flags(attr.encr_type_flags, 1) || | |
1365 | wps_validate_conn_type_flags(attr.conn_type_flags, 1) || | |
1366 | wps_validate_config_methods(attr.config_methods, wps2, 1) || | |
1367 | wps_validate_manufacturer(attr.manufacturer, attr.manufacturer_len, | |
1368 | 1) || | |
1369 | wps_validate_model_name(attr.model_name, attr.model_name_len, 1) || | |
1370 | wps_validate_model_number(attr.model_number, attr.model_number_len, | |
1371 | 1) || | |
1372 | wps_validate_serial_number(attr.serial_number, | |
1373 | attr.serial_number_len, 1) || | |
1374 | wps_validate_primary_dev_type(attr.primary_dev_type, 1) || | |
1375 | wps_validate_dev_name(attr.dev_name, attr.dev_name_len, 1) || | |
1376 | wps_validate_rf_bands(attr.rf_bands, 1) || | |
1377 | wps_validate_assoc_state(attr.assoc_state, 1) || | |
1378 | wps_validate_config_error(attr.config_error, 1) || | |
1379 | wps_validate_dev_password_id(attr.dev_password_id, 1) || | |
1380 | wps_validate_os_version(attr.os_version, 1) || | |
1381 | wps_validate_version2(attr.version2, wps2) || | |
1382 | wps_validate_authenticator(attr.authenticator, 1)) { | |
1383 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M2"); | |
e69b86b7 JM |
1384 | #ifdef WPS_STRICT_WPS2 |
1385 | if (wps2) | |
1386 | return -1; | |
1387 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1388 | return -1; |
e69b86b7 | 1389 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1390 | } |
1391 | ||
1392 | return 0; | |
1393 | } | |
1394 | ||
1395 | ||
1396 | int wps_validate_m2d(const struct wpabuf *tlvs) | |
1397 | { | |
1398 | struct wps_parse_attr attr; | |
1399 | int wps2; | |
1400 | ||
1401 | if (tlvs == NULL) { | |
1402 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M2D"); | |
1403 | return -1; | |
1404 | } | |
1405 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1406 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1407 | "in M2D"); | |
1408 | return -1; | |
1409 | } | |
1410 | ||
1411 | wps2 = attr.version2 != NULL; | |
1412 | if (wps_validate_version(attr.version, 1) || | |
1413 | wps_validate_msg_type(attr.msg_type, 1) || | |
1414 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1415 | wps_validate_registrar_nonce(attr.registrar_nonce, 1) || | |
1416 | wps_validate_uuid_r(attr.uuid_r, 1) || | |
1417 | wps_validate_auth_type_flags(attr.auth_type_flags, 1) || | |
1418 | wps_validate_encr_type_flags(attr.encr_type_flags, 1) || | |
1419 | wps_validate_conn_type_flags(attr.conn_type_flags, 1) || | |
1420 | wps_validate_config_methods(attr.config_methods, wps2, 1) || | |
1421 | wps_validate_manufacturer(attr.manufacturer, attr.manufacturer_len, | |
1422 | 1) || | |
1423 | wps_validate_model_name(attr.model_name, attr.model_name_len, 1) || | |
1424 | wps_validate_model_number(attr.model_number, attr.model_number_len, | |
1425 | 1) || | |
1426 | wps_validate_serial_number(attr.serial_number, | |
1427 | attr.serial_number_len, 1) || | |
1428 | wps_validate_primary_dev_type(attr.primary_dev_type, 1) || | |
1429 | wps_validate_dev_name(attr.dev_name, attr.dev_name_len, 1) || | |
1430 | wps_validate_rf_bands(attr.rf_bands, 1) || | |
1431 | wps_validate_assoc_state(attr.assoc_state, 1) || | |
1432 | wps_validate_config_error(attr.config_error, 1) || | |
1433 | wps_validate_os_version(attr.os_version, 1) || | |
1434 | wps_validate_version2(attr.version2, wps2)) { | |
1435 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M2D"); | |
e69b86b7 JM |
1436 | #ifdef WPS_STRICT_WPS2 |
1437 | if (wps2) | |
1438 | return -1; | |
1439 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1440 | return -1; |
e69b86b7 | 1441 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1442 | } |
1443 | ||
1444 | return 0; | |
1445 | } | |
1446 | ||
1447 | ||
1448 | int wps_validate_m3(const struct wpabuf *tlvs) | |
1449 | { | |
1450 | struct wps_parse_attr attr; | |
1451 | int wps2; | |
1452 | ||
1453 | if (tlvs == NULL) { | |
1454 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M3"); | |
1455 | return -1; | |
1456 | } | |
1457 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1458 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1459 | "in M3"); | |
1460 | return -1; | |
1461 | } | |
1462 | ||
1463 | wps2 = attr.version2 != NULL; | |
1464 | if (wps_validate_version(attr.version, 1) || | |
1465 | wps_validate_msg_type(attr.msg_type, 1) || | |
1466 | wps_validate_registrar_nonce(attr.registrar_nonce, 1) || | |
1467 | wps_validate_e_hash1(attr.e_hash1, 1) || | |
1468 | wps_validate_e_hash2(attr.e_hash2, 1) || | |
1469 | wps_validate_version2(attr.version2, wps2) || | |
1470 | wps_validate_authenticator(attr.authenticator, 1)) { | |
1471 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M3"); | |
e69b86b7 JM |
1472 | #ifdef WPS_STRICT_WPS2 |
1473 | if (wps2) | |
1474 | return -1; | |
1475 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1476 | return -1; |
e69b86b7 | 1477 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1478 | } |
1479 | ||
1480 | return 0; | |
1481 | } | |
1482 | ||
1483 | ||
1484 | int wps_validate_m4(const struct wpabuf *tlvs) | |
1485 | { | |
1486 | struct wps_parse_attr attr; | |
1487 | int wps2; | |
1488 | ||
1489 | if (tlvs == NULL) { | |
1490 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M4"); | |
1491 | return -1; | |
1492 | } | |
1493 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1494 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1495 | "in M4"); | |
1496 | return -1; | |
1497 | } | |
1498 | ||
1499 | wps2 = attr.version2 != NULL; | |
1500 | if (wps_validate_version(attr.version, 1) || | |
1501 | wps_validate_msg_type(attr.msg_type, 1) || | |
1502 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1503 | wps_validate_r_hash1(attr.r_hash1, 1) || | |
1504 | wps_validate_r_hash2(attr.r_hash2, 1) || | |
1505 | wps_validate_encr_settings(attr.encr_settings, | |
1506 | attr.encr_settings_len, 1) || | |
1507 | wps_validate_version2(attr.version2, wps2) || | |
1508 | wps_validate_authenticator(attr.authenticator, 1)) { | |
1509 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M4"); | |
e69b86b7 JM |
1510 | #ifdef WPS_STRICT_WPS2 |
1511 | if (wps2) | |
1512 | return -1; | |
1513 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1514 | return -1; |
e69b86b7 | 1515 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1516 | } |
1517 | ||
1518 | return 0; | |
1519 | } | |
1520 | ||
1521 | ||
3237bfb1 | 1522 | int wps_validate_m4_encr(const struct wpabuf *tlvs, int wps2) |
54f489be JM |
1523 | { |
1524 | struct wps_parse_attr attr; | |
54f489be JM |
1525 | |
1526 | if (tlvs == NULL) { | |
1527 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M4 encrypted " | |
1528 | "settings"); | |
1529 | return -1; | |
1530 | } | |
1531 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1532 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1533 | "in M4 encrypted settings"); | |
1534 | return -1; | |
1535 | } | |
1536 | ||
54f489be JM |
1537 | if (wps_validate_r_snonce1(attr.r_snonce1, 1) || |
1538 | wps_validate_key_wrap_auth(attr.key_wrap_auth, 1)) { | |
1539 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M4 encrypted " | |
1540 | "settings"); | |
e69b86b7 JM |
1541 | #ifdef WPS_STRICT_WPS2 |
1542 | if (wps2) | |
1543 | return -1; | |
1544 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1545 | return -1; |
e69b86b7 | 1546 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1547 | } |
1548 | ||
1549 | return 0; | |
1550 | } | |
1551 | ||
1552 | ||
1553 | int wps_validate_m5(const struct wpabuf *tlvs) | |
1554 | { | |
1555 | struct wps_parse_attr attr; | |
1556 | int wps2; | |
1557 | ||
1558 | if (tlvs == NULL) { | |
1559 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M5"); | |
1560 | return -1; | |
1561 | } | |
1562 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1563 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1564 | "in M5"); | |
1565 | return -1; | |
1566 | } | |
1567 | ||
1568 | wps2 = attr.version2 != NULL; | |
1569 | if (wps_validate_version(attr.version, 1) || | |
1570 | wps_validate_msg_type(attr.msg_type, 1) || | |
1571 | wps_validate_registrar_nonce(attr.registrar_nonce, 1) || | |
1572 | wps_validate_encr_settings(attr.encr_settings, | |
1573 | attr.encr_settings_len, 1) || | |
1574 | wps_validate_version2(attr.version2, wps2) || | |
1575 | wps_validate_authenticator(attr.authenticator, 1)) { | |
1576 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M5"); | |
e69b86b7 JM |
1577 | #ifdef WPS_STRICT_WPS2 |
1578 | if (wps2) | |
1579 | return -1; | |
1580 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1581 | return -1; |
e69b86b7 | 1582 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1583 | } |
1584 | ||
1585 | return 0; | |
1586 | } | |
1587 | ||
1588 | ||
3237bfb1 | 1589 | int wps_validate_m5_encr(const struct wpabuf *tlvs, int wps2) |
54f489be JM |
1590 | { |
1591 | struct wps_parse_attr attr; | |
54f489be JM |
1592 | |
1593 | if (tlvs == NULL) { | |
1594 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M5 encrypted " | |
1595 | "settings"); | |
1596 | return -1; | |
1597 | } | |
1598 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1599 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1600 | "in M5 encrypted settings"); | |
1601 | return -1; | |
1602 | } | |
1603 | ||
54f489be JM |
1604 | if (wps_validate_e_snonce1(attr.e_snonce1, 1) || |
1605 | wps_validate_key_wrap_auth(attr.key_wrap_auth, 1)) { | |
1606 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M5 encrypted " | |
1607 | "settings"); | |
e69b86b7 JM |
1608 | #ifdef WPS_STRICT_WPS2 |
1609 | if (wps2) | |
1610 | return -1; | |
1611 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1612 | return -1; |
e69b86b7 | 1613 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1614 | } |
1615 | ||
1616 | return 0; | |
1617 | } | |
1618 | ||
1619 | ||
1620 | int wps_validate_m6(const struct wpabuf *tlvs) | |
1621 | { | |
1622 | struct wps_parse_attr attr; | |
1623 | int wps2; | |
1624 | ||
1625 | if (tlvs == NULL) { | |
1626 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M6"); | |
1627 | return -1; | |
1628 | } | |
1629 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1630 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1631 | "in M6"); | |
1632 | return -1; | |
1633 | } | |
1634 | ||
1635 | wps2 = attr.version2 != NULL; | |
1636 | if (wps_validate_version(attr.version, 1) || | |
1637 | wps_validate_msg_type(attr.msg_type, 1) || | |
1638 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1639 | wps_validate_encr_settings(attr.encr_settings, | |
1640 | attr.encr_settings_len, 1) || | |
1641 | wps_validate_version2(attr.version2, wps2) || | |
1642 | wps_validate_authenticator(attr.authenticator, 1)) { | |
1643 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M6"); | |
e69b86b7 JM |
1644 | #ifdef WPS_STRICT_WPS2 |
1645 | if (wps2) | |
1646 | return -1; | |
1647 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1648 | return -1; |
e69b86b7 | 1649 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1650 | } |
1651 | ||
1652 | return 0; | |
1653 | } | |
1654 | ||
1655 | ||
3237bfb1 | 1656 | int wps_validate_m6_encr(const struct wpabuf *tlvs, int wps2) |
54f489be JM |
1657 | { |
1658 | struct wps_parse_attr attr; | |
54f489be JM |
1659 | |
1660 | if (tlvs == NULL) { | |
1661 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M6 encrypted " | |
1662 | "settings"); | |
1663 | return -1; | |
1664 | } | |
1665 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1666 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1667 | "in M6 encrypted settings"); | |
1668 | return -1; | |
1669 | } | |
1670 | ||
54f489be JM |
1671 | if (wps_validate_r_snonce2(attr.r_snonce2, 1) || |
1672 | wps_validate_key_wrap_auth(attr.key_wrap_auth, 1)) { | |
1673 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M6 encrypted " | |
1674 | "settings"); | |
e69b86b7 JM |
1675 | #ifdef WPS_STRICT_WPS2 |
1676 | if (wps2) | |
1677 | return -1; | |
1678 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1679 | return -1; |
e69b86b7 | 1680 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1681 | } |
1682 | ||
1683 | return 0; | |
1684 | } | |
1685 | ||
1686 | ||
1687 | int wps_validate_m7(const struct wpabuf *tlvs) | |
1688 | { | |
1689 | struct wps_parse_attr attr; | |
1690 | int wps2; | |
1691 | ||
1692 | if (tlvs == NULL) { | |
1693 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M7"); | |
1694 | return -1; | |
1695 | } | |
1696 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1697 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1698 | "in M7"); | |
1699 | return -1; | |
1700 | } | |
1701 | ||
1702 | wps2 = attr.version2 != NULL; | |
1703 | if (wps_validate_version(attr.version, 1) || | |
1704 | wps_validate_msg_type(attr.msg_type, 1) || | |
1705 | wps_validate_registrar_nonce(attr.registrar_nonce, 1) || | |
1706 | wps_validate_encr_settings(attr.encr_settings, | |
1707 | attr.encr_settings_len, 1) || | |
1708 | wps_validate_settings_delay_time(attr.settings_delay_time, 0) || | |
1709 | wps_validate_version2(attr.version2, wps2) || | |
1710 | wps_validate_authenticator(attr.authenticator, 1)) { | |
1711 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M7"); | |
e69b86b7 JM |
1712 | #ifdef WPS_STRICT_WPS2 |
1713 | if (wps2) | |
1714 | return -1; | |
1715 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1716 | return -1; |
e69b86b7 | 1717 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1718 | } |
1719 | ||
1720 | return 0; | |
1721 | } | |
1722 | ||
1723 | ||
3237bfb1 | 1724 | int wps_validate_m7_encr(const struct wpabuf *tlvs, int ap, int wps2) |
54f489be JM |
1725 | { |
1726 | struct wps_parse_attr attr; | |
54f489be JM |
1727 | |
1728 | if (tlvs == NULL) { | |
1729 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M7 encrypted " | |
1730 | "settings"); | |
1731 | return -1; | |
1732 | } | |
1733 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1734 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1735 | "in M7 encrypted settings"); | |
1736 | return -1; | |
1737 | } | |
1738 | ||
54f489be JM |
1739 | if (wps_validate_e_snonce2(attr.e_snonce2, 1) || |
1740 | wps_validate_ssid(attr.ssid, attr.ssid_len, !ap) || | |
1741 | wps_validate_mac_addr(attr.mac_addr, !ap) || | |
1742 | wps_validate_auth_type(attr.auth_type, !ap) || | |
1743 | wps_validate_encr_type(attr.encr_type, !ap) || | |
1744 | wps_validate_network_key_index(attr.network_key_idx, 0) || | |
1745 | wps_validate_network_key(attr.network_key, attr.network_key_len, | |
1746 | attr.encr_type, !ap) || | |
1747 | wps_validate_key_wrap_auth(attr.key_wrap_auth, 1)) { | |
1748 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M7 encrypted " | |
1749 | "settings"); | |
e69b86b7 JM |
1750 | #ifdef WPS_STRICT_WPS2 |
1751 | if (wps2) | |
1752 | return -1; | |
1753 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1754 | return -1; |
e69b86b7 | 1755 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1756 | } |
1757 | ||
1758 | return 0; | |
1759 | } | |
1760 | ||
1761 | ||
1762 | int wps_validate_m8(const struct wpabuf *tlvs) | |
1763 | { | |
1764 | struct wps_parse_attr attr; | |
1765 | int wps2; | |
1766 | ||
1767 | if (tlvs == NULL) { | |
1768 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M8"); | |
1769 | return -1; | |
1770 | } | |
1771 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1772 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1773 | "in M8"); | |
1774 | return -1; | |
1775 | } | |
1776 | ||
1777 | wps2 = attr.version2 != NULL; | |
1778 | if (wps_validate_version(attr.version, 1) || | |
1779 | wps_validate_msg_type(attr.msg_type, 1) || | |
1780 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1781 | wps_validate_encr_settings(attr.encr_settings, | |
1782 | attr.encr_settings_len, 1) || | |
1783 | wps_validate_version2(attr.version2, wps2) || | |
1784 | wps_validate_authenticator(attr.authenticator, 1)) { | |
1785 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M8"); | |
e69b86b7 JM |
1786 | #ifdef WPS_STRICT_WPS2 |
1787 | if (wps2) | |
1788 | return -1; | |
1789 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1790 | return -1; |
e69b86b7 | 1791 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1792 | } |
1793 | ||
1794 | return 0; | |
1795 | } | |
1796 | ||
1797 | ||
3237bfb1 | 1798 | int wps_validate_m8_encr(const struct wpabuf *tlvs, int ap, int wps2) |
54f489be JM |
1799 | { |
1800 | struct wps_parse_attr attr; | |
54f489be JM |
1801 | |
1802 | if (tlvs == NULL) { | |
1803 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in M8 encrypted " | |
1804 | "settings"); | |
1805 | return -1; | |
1806 | } | |
1807 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1808 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1809 | "in M8 encrypted settings"); | |
1810 | return -1; | |
1811 | } | |
1812 | ||
54f489be JM |
1813 | if (wps_validate_ssid(attr.ssid, attr.ssid_len, ap) || |
1814 | wps_validate_auth_type(attr.auth_type, ap) || | |
1815 | wps_validate_encr_type(attr.encr_type, ap) || | |
1816 | wps_validate_network_key_index(attr.network_key_idx, 0) || | |
1817 | wps_validate_mac_addr(attr.mac_addr, ap) || | |
1818 | wps_validate_credential(attr.cred, attr.cred_len, attr.num_cred, | |
1819 | !ap) || | |
1820 | wps_validate_key_wrap_auth(attr.key_wrap_auth, 1)) { | |
1821 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid M8 encrypted " | |
1822 | "settings"); | |
e69b86b7 JM |
1823 | #ifdef WPS_STRICT_WPS2 |
1824 | if (wps2) | |
1825 | return -1; | |
1826 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1827 | return -1; |
e69b86b7 | 1828 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1829 | } |
1830 | ||
1831 | return 0; | |
1832 | } | |
1833 | ||
1834 | ||
1835 | int wps_validate_wsc_ack(const struct wpabuf *tlvs) | |
1836 | { | |
1837 | struct wps_parse_attr attr; | |
1838 | int wps2; | |
1839 | ||
1840 | if (tlvs == NULL) { | |
1841 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in WSC_ACK"); | |
1842 | return -1; | |
1843 | } | |
1844 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1845 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1846 | "in WSC_ACK"); | |
1847 | return -1; | |
1848 | } | |
1849 | ||
1850 | wps2 = attr.version2 != NULL; | |
1851 | if (wps_validate_version(attr.version, 1) || | |
1852 | wps_validate_msg_type(attr.msg_type, 1) || | |
1853 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1854 | wps_validate_registrar_nonce(attr.registrar_nonce, 1) || | |
1855 | wps_validate_version2(attr.version2, wps2)) { | |
1856 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid WSC_ACK"); | |
e69b86b7 JM |
1857 | #ifdef WPS_STRICT_WPS2 |
1858 | if (wps2) | |
1859 | return -1; | |
1860 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1861 | return -1; |
e69b86b7 | 1862 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1863 | } |
1864 | ||
1865 | return 0; | |
1866 | } | |
1867 | ||
1868 | ||
1869 | int wps_validate_wsc_nack(const struct wpabuf *tlvs) | |
1870 | { | |
1871 | struct wps_parse_attr attr; | |
1872 | int wps2; | |
1873 | ||
1874 | if (tlvs == NULL) { | |
1875 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in WSC_NACK"); | |
1876 | return -1; | |
1877 | } | |
1878 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1879 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1880 | "in WSC_NACK"); | |
1881 | return -1; | |
1882 | } | |
1883 | ||
1884 | wps2 = attr.version2 != NULL; | |
1885 | if (wps_validate_version(attr.version, 1) || | |
1886 | wps_validate_msg_type(attr.msg_type, 1) || | |
1887 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1888 | wps_validate_registrar_nonce(attr.registrar_nonce, 1) || | |
1889 | wps_validate_config_error(attr.config_error, 1) || | |
1890 | wps_validate_version2(attr.version2, wps2)) { | |
1891 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid WSC_NACK"); | |
e69b86b7 JM |
1892 | #ifdef WPS_STRICT_WPS2 |
1893 | if (wps2) | |
1894 | return -1; | |
1895 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1896 | return -1; |
e69b86b7 | 1897 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1898 | } |
1899 | ||
1900 | return 0; | |
1901 | } | |
1902 | ||
1903 | ||
1904 | int wps_validate_wsc_done(const struct wpabuf *tlvs) | |
1905 | { | |
1906 | struct wps_parse_attr attr; | |
1907 | int wps2; | |
1908 | ||
1909 | if (tlvs == NULL) { | |
1910 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in WSC_Done"); | |
1911 | return -1; | |
1912 | } | |
1913 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1914 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1915 | "in WSC_Done"); | |
1916 | return -1; | |
1917 | } | |
1918 | ||
1919 | wps2 = attr.version2 != NULL; | |
1920 | if (wps_validate_version(attr.version, 1) || | |
1921 | wps_validate_msg_type(attr.msg_type, 1) || | |
1922 | wps_validate_enrollee_nonce(attr.enrollee_nonce, 1) || | |
1923 | wps_validate_registrar_nonce(attr.registrar_nonce, 1) || | |
1924 | wps_validate_version2(attr.version2, wps2)) { | |
1925 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid WSC_Done"); | |
e69b86b7 JM |
1926 | #ifdef WPS_STRICT_WPS2 |
1927 | if (wps2) | |
1928 | return -1; | |
1929 | #else /* WPS_STRICT_WPS2 */ | |
54f489be | 1930 | return -1; |
e69b86b7 | 1931 | #endif /* WPS_STRICT_WPS2 */ |
54f489be JM |
1932 | } |
1933 | ||
1934 | return 0; | |
1935 | } | |
168f8401 JM |
1936 | |
1937 | ||
1938 | int wps_validate_upnp_set_selected_registrar(const struct wpabuf *tlvs) | |
1939 | { | |
1940 | struct wps_parse_attr attr; | |
1941 | int wps2; | |
1942 | int sel_reg; | |
1943 | ||
1944 | if (tlvs == NULL) { | |
1945 | wpa_printf(MSG_INFO, "WPS-STRICT: No TLVs in " | |
1946 | "SetSelectedRegistrar"); | |
1947 | return -1; | |
1948 | } | |
1949 | if (wps_parse_msg(tlvs, &attr) < 0) { | |
1950 | wpa_printf(MSG_INFO, "WPS-STRICT: Failed to parse attributes " | |
1951 | "in SetSelectedRegistrar"); | |
1952 | return -1; | |
1953 | } | |
1954 | ||
1955 | wps2 = attr.version2 != NULL; | |
1956 | sel_reg = attr.selected_registrar != NULL && | |
1957 | *attr.selected_registrar != 0; | |
1958 | if (wps_validate_version(attr.version, 1) || | |
1959 | wps_validate_dev_password_id(attr.dev_password_id, sel_reg) || | |
1960 | wps_validate_sel_reg_config_methods(attr.sel_reg_config_methods, | |
1961 | wps2, sel_reg) || | |
1962 | wps_validate_version2(attr.version2, wps2) || | |
1963 | wps_validate_authorized_macs(attr.authorized_macs, | |
1964 | attr.authorized_macs_len, wps2) || | |
1965 | wps_validate_uuid_r(attr.uuid_r, wps2)) { | |
1966 | wpa_printf(MSG_INFO, "WPS-STRICT: Invalid " | |
1967 | "SetSelectedRegistrar"); | |
e69b86b7 JM |
1968 | #ifdef WPS_STRICT_WPS2 |
1969 | if (wps2) | |
1970 | return -1; | |
1971 | #else /* WPS_STRICT_WPS2 */ | |
168f8401 | 1972 | return -1; |
e69b86b7 | 1973 | #endif /* WPS_STRICT_WPS2 */ |
168f8401 JM |
1974 | } |
1975 | ||
1976 | return 0; | |
1977 | } |