1 /*
2 * Wi-Fi Protected Setup - Strict protocol validation routines
3 * Copyright (c) 2010, Atheros Communications, Inc.
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "utils/includes.h"
10
11 #include "utils/common.h"
12 #include "wps_i.h"
13 #include "wps.h"
14
15
16 #ifndef WPS_STRICT_ALL
17 #define WPS_STRICT_WPS2
18 #endif /* WPS_STRICT_ALL */
19
20
wps_validate_version(const u8 * version,int mandatory)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
wps_validate_version2(const u8 * version2,int mandatory)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
wps_validate_request_type(const u8 * request_type,int mandatory)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
wps_validate_response_type(const u8 * response_type,int mandatory)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
valid_config_methods(u16 val,int wps2)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
wps_validate_config_methods(const u8 * config_methods,int wps2,int mandatory)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
wps_validate_ap_config_methods(const u8 * config_methods,int wps2,int mandatory)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
wps_validate_uuid_e(const u8 * uuid_e,int mandatory)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
wps_validate_uuid_r(const u8 * uuid_r,int mandatory)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
wps_validate_primary_dev_type(const u8 * primary_dev_type,int mandatory)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
wps_validate_rf_bands(const u8 * rf_bands,int mandatory)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 &&
227 *rf_bands != WPS_RF_60GHZ &&
228 *rf_bands != (WPS_RF_24GHZ | WPS_RF_50GHZ | WPS_RF_60GHZ) &&
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
wps_validate_assoc_state(const u8 * assoc_state,int mandatory)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
wps_validate_config_error(const u8 * config_error,int mandatory)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);
272 if (val > 20) {
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
wps_validate_dev_password_id(const u8 * dev_password_id,int mandatory)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);
295 if (val >= 0x0008 && val <= 0x000f) {
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
wps_validate_manufacturer(const u8 * manufacturer,size_t len,int mandatory)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
wps_validate_model_name(const u8 * model_name,size_t len,int mandatory)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
wps_validate_model_number(const u8 * model_number,size_t len,int mandatory)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
wps_validate_serial_number(const u8 * serial_number,size_t len,int mandatory)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
wps_validate_dev_name(const u8 * dev_name,size_t len,int mandatory)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
wps_validate_request_to_enroll(const u8 * request_to_enroll,int mandatory)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
wps_validate_req_dev_type(const u8 * req_dev_type[],size_t num,int mandatory)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
wps_validate_wps_state(const u8 * wps_state,int mandatory)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
wps_validate_ap_setup_locked(const u8 * ap_setup_locked,int mandatory)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
wps_validate_selected_registrar(const u8 * selected_registrar,int mandatory)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
wps_validate_sel_reg_config_methods(const u8 * config_methods,int wps2,int mandatory)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
wps_validate_authorized_macs(const u8 * authorized_macs,size_t len,int mandatory)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
wps_validate_msg_type(const u8 * msg_type,int mandatory)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
wps_validate_mac_addr(const u8 * mac_addr,int mandatory)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
wps_validate_enrollee_nonce(const u8 * enrollee_nonce,int mandatory)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
wps_validate_registrar_nonce(const u8 * registrar_nonce,int mandatory)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
wps_validate_public_key(const u8 * public_key,size_t len,int mandatory)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
num_bits_set(u16 val)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
wps_validate_auth_type_flags(const u8 * flags,int mandatory)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
wps_validate_auth_type(const u8 * type,int mandatory)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
wps_validate_encr_type_flags(const u8 * flags,int mandatory)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
wps_validate_encr_type(const u8 * type,int mandatory)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
wps_validate_conn_type_flags(const u8 * flags,int mandatory)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
wps_validate_os_version(const u8 * os_version,int mandatory)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
wps_validate_authenticator(const u8 * authenticator,int mandatory)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
wps_validate_e_hash1(const u8 * hash,int mandatory)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
wps_validate_e_hash2(const u8 * hash,int mandatory)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
wps_validate_r_hash1(const u8 * hash,int mandatory)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
wps_validate_r_hash2(const u8 * hash,int mandatory)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
wps_validate_encr_settings(const u8 * encr_settings,size_t len,int mandatory)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
wps_validate_settings_delay_time(const u8 * delay,int mandatory)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
wps_validate_r_snonce1(const u8 * nonce,int mandatory)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
wps_validate_r_snonce2(const u8 * nonce,int mandatory)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
wps_validate_e_snonce1(const u8 * nonce,int mandatory)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
wps_validate_e_snonce2(const u8 * nonce,int mandatory)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
wps_validate_key_wrap_auth(const u8 * auth,int mandatory)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
wps_validate_ssid(const u8 * ssid,size_t ssid_len,int mandatory)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
wps_validate_network_key_index(const u8 * idx,int mandatory)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
wps_validate_network_idx(const u8 * idx,int mandatory)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
wps_validate_network_key(const u8 * key,size_t key_len,const u8 * encr_type,int mandatory)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
wps_validate_network_key_shareable(const u8 * val,int mandatory)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
wps_validate_cred(const u8 * cred,size_t len)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
1041 if (wps_validate_network_idx(attr.network_idx, 1) ||
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
wps_validate_credential(const u8 * cred[],u16 len[],size_t num,int mandatory)1060 static int wps_validate_credential(const u8 *cred[], u16 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
wps_validate_beacon(const struct wpabuf * wps_ie)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
wps_validate_beacon_probe_resp(const struct wpabuf * wps_ie,int probe,const u8 * addr)1121 int wps_validate_beacon_probe_resp(const struct wpabuf *wps_ie, int probe,
1122 const u8 *addr)
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 "
1166 "frame from " MACSTR, probe ? "" : "Beacon/",
1167 MAC2STR(addr));
1168 #ifdef WPS_STRICT_WPS2
1169 if (wps2)
1170 return -1;
1171 #else /* WPS_STRICT_WPS2 */
1172 return -1;
1173 #endif /* WPS_STRICT_WPS2 */
1174 }
1175
1176 return 0;
1177 }
1178
1179
wps_validate_probe_req(const struct wpabuf * wps_ie,const u8 * addr)1180 int wps_validate_probe_req(const struct wpabuf *wps_ie, const u8 *addr)
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 "
1219 "frame from " MACSTR, MAC2STR(addr));
1220 return -1;
1221 }
1222
1223 return 0;
1224 }
1225
1226
wps_validate_assoc_req(const struct wpabuf * wps_ie)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
wps_validate_assoc_resp(const struct wpabuf * wps_ie)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) ||
1274 wps_validate_response_type(attr.response_type, 1) ||
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
wps_validate_m1(const struct wpabuf * tlvs)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");
1329 #ifdef WPS_STRICT_WPS2
1330 if (wps2)
1331 return -1;
1332 #else /* WPS_STRICT_WPS2 */
1333 return -1;
1334 #endif /* WPS_STRICT_WPS2 */
1335 }
1336
1337 return 0;
1338 }
1339
1340
wps_validate_m2(const struct wpabuf * tlvs)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");
1384 #ifdef WPS_STRICT_WPS2
1385 if (wps2)
1386 return -1;
1387 #else /* WPS_STRICT_WPS2 */
1388 return -1;
1389 #endif /* WPS_STRICT_WPS2 */
1390 }
1391
1392 return 0;
1393 }
1394
1395
wps_validate_m2d(const struct wpabuf * tlvs)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");
1436 #ifdef WPS_STRICT_WPS2
1437 if (wps2)
1438 return -1;
1439 #else /* WPS_STRICT_WPS2 */
1440 return -1;
1441 #endif /* WPS_STRICT_WPS2 */
1442 }
1443
1444 return 0;
1445 }
1446
1447
wps_validate_m3(const struct wpabuf * tlvs)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");
1472 #ifdef WPS_STRICT_WPS2
1473 if (wps2)
1474 return -1;
1475 #else /* WPS_STRICT_WPS2 */
1476 return -1;
1477 #endif /* WPS_STRICT_WPS2 */
1478 }
1479
1480 return 0;
1481 }
1482
1483
wps_validate_m4(const struct wpabuf * tlvs)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");
1510 #ifdef WPS_STRICT_WPS2
1511 if (wps2)
1512 return -1;
1513 #else /* WPS_STRICT_WPS2 */
1514 return -1;
1515 #endif /* WPS_STRICT_WPS2 */
1516 }
1517
1518 return 0;
1519 }
1520
1521
wps_validate_m4_encr(const struct wpabuf * tlvs,int wps2)1522 int wps_validate_m4_encr(const struct wpabuf *tlvs, int wps2)
1523 {
1524 struct wps_parse_attr attr;
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
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");
1541 #ifdef WPS_STRICT_WPS2
1542 if (wps2)
1543 return -1;
1544 #else /* WPS_STRICT_WPS2 */
1545 return -1;
1546 #endif /* WPS_STRICT_WPS2 */
1547 }
1548
1549 return 0;
1550 }
1551
1552
wps_validate_m5(const struct wpabuf * tlvs)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");
1577 #ifdef WPS_STRICT_WPS2
1578 if (wps2)
1579 return -1;
1580 #else /* WPS_STRICT_WPS2 */
1581 return -1;
1582 #endif /* WPS_STRICT_WPS2 */
1583 }
1584
1585 return 0;
1586 }
1587
1588
wps_validate_m5_encr(const struct wpabuf * tlvs,int wps2)1589 int wps_validate_m5_encr(const struct wpabuf *tlvs, int wps2)
1590 {
1591 struct wps_parse_attr attr;
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
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");
1608 #ifdef WPS_STRICT_WPS2
1609 if (wps2)
1610 return -1;
1611 #else /* WPS_STRICT_WPS2 */
1612 return -1;
1613 #endif /* WPS_STRICT_WPS2 */
1614 }
1615
1616 return 0;
1617 }
1618
1619
wps_validate_m6(const struct wpabuf * tlvs)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");
1644 #ifdef WPS_STRICT_WPS2
1645 if (wps2)
1646 return -1;
1647 #else /* WPS_STRICT_WPS2 */
1648 return -1;
1649 #endif /* WPS_STRICT_WPS2 */
1650 }
1651
1652 return 0;
1653 }
1654
1655
wps_validate_m6_encr(const struct wpabuf * tlvs,int wps2)1656 int wps_validate_m6_encr(const struct wpabuf *tlvs, int wps2)
1657 {
1658 struct wps_parse_attr attr;
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
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");
1675 #ifdef WPS_STRICT_WPS2
1676 if (wps2)
1677 return -1;
1678 #else /* WPS_STRICT_WPS2 */
1679 return -1;
1680 #endif /* WPS_STRICT_WPS2 */
1681 }
1682
1683 return 0;
1684 }
1685
1686
wps_validate_m7(const struct wpabuf * tlvs)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");
1712 #ifdef WPS_STRICT_WPS2
1713 if (wps2)
1714 return -1;
1715 #else /* WPS_STRICT_WPS2 */
1716 return -1;
1717 #endif /* WPS_STRICT_WPS2 */
1718 }
1719
1720 return 0;
1721 }
1722
1723
wps_validate_m7_encr(const struct wpabuf * tlvs,int ap,int wps2)1724 int wps_validate_m7_encr(const struct wpabuf *tlvs, int ap, int wps2)
1725 {
1726 struct wps_parse_attr attr;
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
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");
1750 #ifdef WPS_STRICT_WPS2
1751 if (wps2)
1752 return -1;
1753 #else /* WPS_STRICT_WPS2 */
1754 return -1;
1755 #endif /* WPS_STRICT_WPS2 */
1756 }
1757
1758 return 0;
1759 }
1760
1761
wps_validate_m8(const struct wpabuf * tlvs)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");
1786 #ifdef WPS_STRICT_WPS2
1787 if (wps2)
1788 return -1;
1789 #else /* WPS_STRICT_WPS2 */
1790 return -1;
1791 #endif /* WPS_STRICT_WPS2 */
1792 }
1793
1794 return 0;
1795 }
1796
1797
wps_validate_m8_encr(const struct wpabuf * tlvs,int ap,int wps2)1798 int wps_validate_m8_encr(const struct wpabuf *tlvs, int ap, int wps2)
1799 {
1800 struct wps_parse_attr attr;
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
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");
1823 #ifdef WPS_STRICT_WPS2
1824 if (wps2)
1825 return -1;
1826 #else /* WPS_STRICT_WPS2 */
1827 return -1;
1828 #endif /* WPS_STRICT_WPS2 */
1829 }
1830
1831 return 0;
1832 }
1833
1834
wps_validate_wsc_ack(const struct wpabuf * tlvs)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");
1857 #ifdef WPS_STRICT_WPS2
1858 if (wps2)
1859 return -1;
1860 #else /* WPS_STRICT_WPS2 */
1861 return -1;
1862 #endif /* WPS_STRICT_WPS2 */
1863 }
1864
1865 return 0;
1866 }
1867
1868
wps_validate_wsc_nack(const struct wpabuf * tlvs)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");
1892 #ifdef WPS_STRICT_WPS2
1893 if (wps2)
1894 return -1;
1895 #else /* WPS_STRICT_WPS2 */
1896 return -1;
1897 #endif /* WPS_STRICT_WPS2 */
1898 }
1899
1900 return 0;
1901 }
1902
1903
wps_validate_wsc_done(const struct wpabuf * tlvs)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");
1926 #ifdef WPS_STRICT_WPS2
1927 if (wps2)
1928 return -1;
1929 #else /* WPS_STRICT_WPS2 */
1930 return -1;
1931 #endif /* WPS_STRICT_WPS2 */
1932 }
1933
1934 return 0;
1935 }
1936
1937
wps_validate_upnp_set_selected_registrar(const struct wpabuf * tlvs)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");
1968 #ifdef WPS_STRICT_WPS2
1969 if (wps2)
1970 return -1;
1971 #else /* WPS_STRICT_WPS2 */
1972 return -1;
1973 #endif /* WPS_STRICT_WPS2 */
1974 }
1975
1976 return 0;
1977 }
1978