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[thirdparty/hostap.git] / wpa_supplicant / wps_supplicant.c
1 /*
2 * wpa_supplicant / WPS integration
3 * Copyright (c) 2008-2014, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "eloop.h"
13 #include "uuid.h"
14 #include "crypto/random.h"
15 #include "crypto/dh_group5.h"
16 #include "common/ieee802_11_defs.h"
17 #include "common/ieee802_11_common.h"
18 #include "common/wpa_common.h"
19 #include "common/wpa_ctrl.h"
20 #include "eap_common/eap_wsc_common.h"
21 #include "eap_peer/eap.h"
22 #include "eapol_supp/eapol_supp_sm.h"
23 #include "rsn_supp/wpa.h"
24 #include "wps/wps_attr_parse.h"
25 #include "config.h"
26 #include "wpa_supplicant_i.h"
27 #include "driver_i.h"
28 #include "notify.h"
29 #include "blacklist.h"
30 #include "bss.h"
31 #include "scan.h"
32 #include "ap.h"
33 #include "p2p/p2p.h"
34 #include "p2p_supplicant.h"
35 #include "wps_supplicant.h"
36
37
38 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
39 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
40 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
41
42 /*
43 * The minimum time in seconds before trying to associate to a WPS PIN AP that
44 * does not have Selected Registrar TRUE.
45 */
46 #ifndef WPS_PIN_TIME_IGNORE_SEL_REG
47 #define WPS_PIN_TIME_IGNORE_SEL_REG 5
48 #endif /* WPS_PIN_TIME_IGNORE_SEL_REG */
49
50 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
51 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
52
53
54 static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s)
55 {
56 os_free(wpa_s->wps_ap);
57 wpa_s->wps_ap = NULL;
58 wpa_s->num_wps_ap = 0;
59 wpa_s->wps_ap_iter = 0;
60 }
61
62
63 static void wpas_wps_assoc_with_cred(void *eloop_ctx, void *timeout_ctx)
64 {
65 struct wpa_supplicant *wpa_s = eloop_ctx;
66 int use_fast_assoc = timeout_ctx != NULL;
67
68 wpa_printf(MSG_DEBUG, "WPS: Continuing association after eapol_cb");
69 if (!use_fast_assoc ||
70 wpa_supplicant_fast_associate(wpa_s) != 1)
71 wpa_supplicant_req_scan(wpa_s, 0, 0);
72 }
73
74
75 static void wpas_wps_assoc_with_cred_cancel(struct wpa_supplicant *wpa_s)
76 {
77 eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 0);
78 eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 1);
79 }
80
81
82 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
83 {
84 if (wpas_p2p_wps_eapol_cb(wpa_s) > 0)
85 return 1;
86
87 if (!wpa_s->wps_success &&
88 wpa_s->current_ssid &&
89 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
90 const u8 *bssid = wpa_s->bssid;
91 if (is_zero_ether_addr(bssid))
92 bssid = wpa_s->pending_bssid;
93
94 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
95 " did not succeed - continue trying to find "
96 "suitable AP", MAC2STR(bssid));
97 wpa_blacklist_add(wpa_s, bssid);
98
99 wpa_supplicant_deauthenticate(wpa_s,
100 WLAN_REASON_DEAUTH_LEAVING);
101 wpa_s->reassociate = 1;
102 wpa_supplicant_req_scan(wpa_s,
103 wpa_s->blacklist_cleared ? 5 : 0, 0);
104 wpa_s->blacklist_cleared = 0;
105 return 1;
106 }
107
108 wpas_wps_clear_ap_info(wpa_s);
109 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
110 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
111 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
112
113 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
114 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
115 int disabled = wpa_s->current_ssid->disabled;
116 unsigned int freq = wpa_s->assoc_freq;
117 struct wpa_bss *bss;
118 struct wpa_ssid *ssid = NULL;
119 int use_fast_assoc = 0;
120
121 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
122 "try to associate with the received credential "
123 "(freq=%u)", freq);
124 wpa_s->own_disconnect_req = 1;
125 wpa_supplicant_deauthenticate(wpa_s,
126 WLAN_REASON_DEAUTH_LEAVING);
127 if (disabled) {
128 wpa_printf(MSG_DEBUG, "WPS: Current network is "
129 "disabled - wait for user to enable");
130 return 1;
131 }
132 wpa_s->after_wps = 5;
133 wpa_s->wps_freq = freq;
134 wpa_s->normal_scans = 0;
135 wpa_s->reassociate = 1;
136
137 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association "
138 "without a new scan can be used");
139 bss = wpa_supplicant_pick_network(wpa_s, &ssid);
140 if (bss) {
141 struct wpabuf *wps;
142 struct wps_parse_attr attr;
143
144 wps = wpa_bss_get_vendor_ie_multi(bss,
145 WPS_IE_VENDOR_TYPE);
146 if (wps && wps_parse_msg(wps, &attr) == 0 &&
147 attr.wps_state &&
148 *attr.wps_state == WPS_STATE_CONFIGURED)
149 use_fast_assoc = 1;
150 wpabuf_free(wps);
151 }
152
153 /*
154 * Complete the next step from an eloop timeout to allow pending
155 * driver events related to the disconnection to be processed
156 * first. This makes it less likely for disconnection event to
157 * cause problems with the following connection.
158 */
159 wpa_printf(MSG_DEBUG, "WPS: Continue association from timeout");
160 wpas_wps_assoc_with_cred_cancel(wpa_s);
161 eloop_register_timeout(0, 10000,
162 wpas_wps_assoc_with_cred, wpa_s,
163 use_fast_assoc ? (void *) 1 :
164 (void *) 0);
165 return 1;
166 }
167
168 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
169 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
170 "for external credential processing");
171 wpas_clear_wps(wpa_s);
172 wpa_s->own_disconnect_req = 1;
173 wpa_supplicant_deauthenticate(wpa_s,
174 WLAN_REASON_DEAUTH_LEAVING);
175 return 1;
176 }
177
178 return 0;
179 }
180
181
182 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
183 struct wpa_ssid *ssid,
184 const struct wps_credential *cred)
185 {
186 struct wpa_driver_capa capa;
187 struct wpa_bss *bss;
188 const u8 *ie;
189 struct wpa_ie_data adv;
190 int wpa2 = 0, ccmp = 0;
191
192 /*
193 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
194 * case they are configured for mixed mode operation (WPA+WPA2 and
195 * TKIP+CCMP). Try to use scan results to figure out whether the AP
196 * actually supports stronger security and select that if the client
197 * has support for it, too.
198 */
199
200 if (wpa_drv_get_capa(wpa_s, &capa))
201 return; /* Unknown what driver supports */
202
203 if (ssid->ssid == NULL)
204 return;
205 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
206 if (bss == NULL) {
207 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
208 "table - use credential as-is");
209 return;
210 }
211
212 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
213
214 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
215 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
216 wpa2 = 1;
217 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
218 ccmp = 1;
219 } else {
220 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
221 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
222 adv.pairwise_cipher & WPA_CIPHER_CCMP)
223 ccmp = 1;
224 }
225
226 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
227 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
228 /*
229 * TODO: This could be the initial AP configuration and the
230 * Beacon contents could change shortly. Should request a new
231 * scan and delay addition of the network until the updated
232 * scan results are available.
233 */
234 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
235 "support - use credential as-is");
236 return;
237 }
238
239 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
240 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
241 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
242 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
243 "based on scan results");
244 if (wpa_s->conf->ap_scan == 1)
245 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
246 else
247 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
248 }
249
250 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
251 (ssid->proto & WPA_PROTO_WPA) &&
252 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
253 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
254 "based on scan results");
255 if (wpa_s->conf->ap_scan == 1)
256 ssid->proto |= WPA_PROTO_RSN;
257 else
258 ssid->proto = WPA_PROTO_RSN;
259 }
260 }
261
262
263 static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s,
264 struct wpa_ssid *new_ssid)
265 {
266 struct wpa_ssid *ssid, *next;
267
268 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid;
269 ssid = next, next = ssid ? ssid->next : NULL) {
270 /*
271 * new_ssid has already been added to the list in
272 * wpas_wps_add_network(), so skip it.
273 */
274 if (ssid == new_ssid)
275 continue;
276
277 if (ssid->bssid_set || new_ssid->bssid_set) {
278 if (ssid->bssid_set != new_ssid->bssid_set)
279 continue;
280 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) !=
281 0)
282 continue;
283 }
284
285 /* compare SSID */
286 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len)
287 continue;
288
289 if (ssid->ssid && new_ssid->ssid) {
290 if (os_memcmp(ssid->ssid, new_ssid->ssid,
291 ssid->ssid_len) != 0)
292 continue;
293 } else if (ssid->ssid || new_ssid->ssid)
294 continue;
295
296 /* compare security parameters */
297 if (ssid->auth_alg != new_ssid->auth_alg ||
298 ssid->key_mgmt != new_ssid->key_mgmt ||
299 (ssid->group_cipher != new_ssid->group_cipher &&
300 !(ssid->group_cipher & new_ssid->group_cipher &
301 WPA_CIPHER_CCMP)))
302 continue;
303
304 /*
305 * Some existing WPS APs will send two creds in case they are
306 * configured for mixed mode operation (WPA+WPA2 and TKIP+CCMP).
307 * Try to merge these two creds if they are received in the same
308 * M8 message.
309 */
310 if (ssid->wps_run && ssid->wps_run == new_ssid->wps_run &&
311 wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) {
312 if (new_ssid->passphrase && ssid->passphrase &&
313 os_strcmp(new_ssid->passphrase, ssid->passphrase) !=
314 0) {
315 wpa_printf(MSG_DEBUG,
316 "WPS: M8 Creds with different passphrase - do not merge");
317 continue;
318 }
319
320 if (new_ssid->psk_set &&
321 (!ssid->psk_set ||
322 os_memcmp(new_ssid->psk, ssid->psk, 32) != 0)) {
323 wpa_printf(MSG_DEBUG,
324 "WPS: M8 Creds with different PSK - do not merge");
325 continue;
326 }
327
328 if ((new_ssid->passphrase && !ssid->passphrase) ||
329 (!new_ssid->passphrase && ssid->passphrase)) {
330 wpa_printf(MSG_DEBUG,
331 "WPS: M8 Creds with different passphrase/PSK type - do not merge");
332 continue;
333 }
334
335 wpa_printf(MSG_DEBUG,
336 "WPS: Workaround - merge likely WPA/WPA2-mixed mode creds in same M8 message");
337 new_ssid->proto |= ssid->proto;
338 new_ssid->pairwise_cipher |= ssid->pairwise_cipher;
339 } else {
340 /*
341 * proto and pairwise_cipher difference matter for
342 * non-mixed-mode creds.
343 */
344 if (ssid->proto != new_ssid->proto ||
345 ssid->pairwise_cipher != new_ssid->pairwise_cipher)
346 continue;
347 }
348
349 /* Remove the duplicated older network entry. */
350 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id);
351 wpas_notify_network_removed(wpa_s, ssid);
352 if (wpa_s->current_ssid == ssid)
353 wpa_s->current_ssid = NULL;
354 wpa_config_remove_network(wpa_s->conf, ssid->id);
355 }
356 }
357
358
359 static int wpa_supplicant_wps_cred(void *ctx,
360 const struct wps_credential *cred)
361 {
362 struct wpa_supplicant *wpa_s = ctx;
363 struct wpa_ssid *ssid = wpa_s->current_ssid;
364 u16 auth_type;
365 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
366 int registrar = 0;
367 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
368
369 if ((wpa_s->conf->wps_cred_processing == 1 ||
370 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
371 size_t blen = cred->cred_attr_len * 2 + 1;
372 char *buf = os_malloc(blen);
373 if (buf) {
374 wpa_snprintf_hex(buf, blen,
375 cred->cred_attr, cred->cred_attr_len);
376 wpa_msg(wpa_s, MSG_INFO, "%s%s",
377 WPS_EVENT_CRED_RECEIVED, buf);
378 os_free(buf);
379 }
380
381 wpas_notify_wps_credential(wpa_s, cred);
382 } else
383 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
384
385 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
386 cred->cred_attr, cred->cred_attr_len);
387
388 if (wpa_s->conf->wps_cred_processing == 1)
389 return 0;
390
391 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
392 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
393 cred->auth_type);
394 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
395 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
396 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
397 cred->key, cred->key_len);
398 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
399 MAC2STR(cred->mac_addr));
400
401 auth_type = cred->auth_type;
402 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
403 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
404 "auth_type into WPA2PSK");
405 auth_type = WPS_AUTH_WPA2PSK;
406 }
407
408 if (auth_type != WPS_AUTH_OPEN &&
409 auth_type != WPS_AUTH_WPAPSK &&
410 auth_type != WPS_AUTH_WPA2PSK) {
411 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
412 "unsupported authentication type 0x%x",
413 auth_type);
414 return 0;
415 }
416
417 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
418 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
419 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
420 "invalid Network Key length %lu",
421 (unsigned long) cred->key_len);
422 return -1;
423 }
424 }
425
426 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
427 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
428 "on the received credential");
429 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
430 if (ssid->eap.identity &&
431 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
432 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
433 WSC_ID_REGISTRAR_LEN) == 0)
434 registrar = 1;
435 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
436 os_free(ssid->eap.identity);
437 ssid->eap.identity = NULL;
438 ssid->eap.identity_len = 0;
439 os_free(ssid->eap.phase1);
440 ssid->eap.phase1 = NULL;
441 os_free(ssid->eap.eap_methods);
442 ssid->eap.eap_methods = NULL;
443 if (!ssid->p2p_group) {
444 ssid->temporary = 0;
445 ssid->bssid_set = 0;
446 }
447 ssid->disabled_until.sec = 0;
448 ssid->disabled_until.usec = 0;
449 ssid->auth_failures = 0;
450 } else {
451 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
452 "received credential");
453 ssid = wpa_config_add_network(wpa_s->conf);
454 if (ssid == NULL)
455 return -1;
456 if (wpa_s->current_ssid) {
457 /*
458 * Should the GO issue multiple credentials for some
459 * reason, each credential should be marked as a
460 * temporary P2P group similarly to the one that gets
461 * marked as such based on the pre-configured values
462 * used for the WPS network block.
463 */
464 ssid->p2p_group = wpa_s->current_ssid->p2p_group;
465 ssid->temporary = wpa_s->current_ssid->temporary;
466 }
467 wpas_notify_network_added(wpa_s, ssid);
468 }
469
470 wpa_config_set_network_defaults(ssid);
471 ssid->wps_run = wpa_s->wps_run;
472
473 os_free(ssid->ssid);
474 ssid->ssid = os_malloc(cred->ssid_len);
475 if (ssid->ssid) {
476 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
477 ssid->ssid_len = cred->ssid_len;
478 }
479
480 switch (cred->encr_type) {
481 case WPS_ENCR_NONE:
482 break;
483 case WPS_ENCR_TKIP:
484 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
485 break;
486 case WPS_ENCR_AES:
487 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
488 if (wpa_s->drv_capa_known &&
489 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP)) {
490 ssid->pairwise_cipher |= WPA_CIPHER_GCMP;
491 ssid->group_cipher |= WPA_CIPHER_GCMP;
492 }
493 break;
494 }
495
496 switch (auth_type) {
497 case WPS_AUTH_OPEN:
498 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
499 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
500 ssid->proto = 0;
501 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
502 if (registrar) {
503 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
504 "id=%d - Credentials for an open "
505 "network disabled by default - use "
506 "'select_network %d' to enable",
507 ssid->id, ssid->id);
508 ssid->disabled = 1;
509 }
510 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
511 break;
512 case WPS_AUTH_WPAPSK:
513 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
514 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
515 ssid->proto = WPA_PROTO_WPA;
516 break;
517 case WPS_AUTH_WPA2PSK:
518 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
519 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
520 ssid->proto = WPA_PROTO_RSN;
521 break;
522 }
523
524 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
525 if (cred->key_len == 2 * PMK_LEN) {
526 if (hexstr2bin((const char *) cred->key, ssid->psk,
527 PMK_LEN)) {
528 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
529 "Key");
530 return -1;
531 }
532 ssid->psk_set = 1;
533 ssid->export_keys = 1;
534 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
535 os_free(ssid->passphrase);
536 ssid->passphrase = os_malloc(cred->key_len + 1);
537 if (ssid->passphrase == NULL)
538 return -1;
539 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
540 ssid->passphrase[cred->key_len] = '\0';
541 wpa_config_update_psk(ssid);
542 ssid->export_keys = 1;
543 } else {
544 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
545 "length %lu",
546 (unsigned long) cred->key_len);
547 return -1;
548 }
549 }
550 ssid->priority = wpa_s->conf->wps_priority;
551
552 wpas_wps_security_workaround(wpa_s, ssid, cred);
553
554 wpas_wps_remove_dup_network(wpa_s, ssid);
555
556 #ifndef CONFIG_NO_CONFIG_WRITE
557 if (wpa_s->conf->update_config &&
558 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
559 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
560 return -1;
561 }
562 #endif /* CONFIG_NO_CONFIG_WRITE */
563
564 if (ssid->priority)
565 wpa_config_update_prio_list(wpa_s->conf);
566
567 /*
568 * Optimize the post-WPS scan based on the channel used during
569 * the provisioning in case EAP-Failure is not received.
570 */
571 wpa_s->after_wps = 5;
572 wpa_s->wps_freq = wpa_s->assoc_freq;
573
574 return 0;
575 }
576
577
578 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
579 struct wps_event_m2d *m2d)
580 {
581 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
582 "dev_password_id=%d config_error=%d",
583 m2d->dev_password_id, m2d->config_error);
584 wpas_notify_wps_event_m2d(wpa_s, m2d);
585 #ifdef CONFIG_P2P
586 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) {
587 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_M2D
588 "dev_password_id=%d config_error=%d",
589 m2d->dev_password_id, m2d->config_error);
590 }
591 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
592 /*
593 * Notify P2P from eloop timeout to avoid issues with the
594 * interface getting removed while processing a message.
595 */
596 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, wpa_s,
597 NULL);
598 }
599 #endif /* CONFIG_P2P */
600 }
601
602
603 static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx)
604 {
605 struct wpa_supplicant *wpa_s = eloop_ctx;
606 wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout");
607 wpas_clear_wps(wpa_s);
608 }
609
610
611 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
612 struct wps_event_fail *fail)
613 {
614 if (fail->error_indication > 0 &&
615 fail->error_indication < NUM_WPS_EI_VALUES) {
616 wpa_msg(wpa_s, MSG_INFO,
617 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
618 fail->msg, fail->config_error, fail->error_indication,
619 wps_ei_str(fail->error_indication));
620 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s)
621 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL
622 "msg=%d config_error=%d reason=%d (%s)",
623 fail->msg, fail->config_error,
624 fail->error_indication,
625 wps_ei_str(fail->error_indication));
626 } else {
627 wpa_msg(wpa_s, MSG_INFO,
628 WPS_EVENT_FAIL "msg=%d config_error=%d",
629 fail->msg, fail->config_error);
630 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s)
631 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL
632 "msg=%d config_error=%d",
633 fail->msg, fail->config_error);
634 }
635
636 /*
637 * Need to allow WPS processing to complete, e.g., by sending WSC_NACK.
638 */
639 wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network");
640 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
641 eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL);
642
643 wpas_notify_wps_event_fail(wpa_s, fail);
644 wpas_p2p_wps_failed(wpa_s, fail);
645 }
646
647
648 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
649
650 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
651 {
652 struct wpa_ssid *ssid;
653 int changed = 0;
654
655 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
656
657 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
658 if (ssid->disabled_for_connect && ssid->disabled) {
659 ssid->disabled_for_connect = 0;
660 ssid->disabled = 0;
661 wpas_notify_network_enabled_changed(wpa_s, ssid);
662 changed++;
663 }
664 }
665
666 if (changed) {
667 #ifndef CONFIG_NO_CONFIG_WRITE
668 if (wpa_s->conf->update_config &&
669 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
670 wpa_printf(MSG_DEBUG, "WPS: Failed to update "
671 "configuration");
672 }
673 #endif /* CONFIG_NO_CONFIG_WRITE */
674 }
675 }
676
677
678 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
679 {
680 struct wpa_supplicant *wpa_s = eloop_ctx;
681 /* Enable the networks disabled during wpas_wps_reassoc */
682 wpas_wps_reenable_networks(wpa_s);
683 }
684
685
686 int wpas_wps_reenable_networks_pending(struct wpa_supplicant *wpa_s)
687 {
688 return eloop_is_timeout_registered(wpas_wps_reenable_networks_cb,
689 wpa_s, NULL);
690 }
691
692
693 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
694 {
695 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
696 wpa_s->wps_success = 1;
697 wpas_notify_wps_event_success(wpa_s);
698 if (wpa_s->current_ssid)
699 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1);
700 wpa_s->extra_blacklist_count = 0;
701
702 /*
703 * Enable the networks disabled during wpas_wps_reassoc after 10
704 * seconds. The 10 seconds timer is to allow the data connection to be
705 * formed before allowing other networks to be selected.
706 */
707 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
708 NULL);
709
710 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
711 }
712
713
714 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
715 struct wps_event_er_ap *ap)
716 {
717 char uuid_str[100];
718 char dev_type[WPS_DEV_TYPE_BUFSIZE];
719
720 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
721 if (ap->pri_dev_type)
722 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
723 sizeof(dev_type));
724 else
725 dev_type[0] = '\0';
726
727 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
728 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
729 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
730 ap->friendly_name ? ap->friendly_name : "",
731 ap->manufacturer ? ap->manufacturer : "",
732 ap->model_description ? ap->model_description : "",
733 ap->model_name ? ap->model_name : "",
734 ap->manufacturer_url ? ap->manufacturer_url : "",
735 ap->model_url ? ap->model_url : "");
736 }
737
738
739 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
740 struct wps_event_er_ap *ap)
741 {
742 char uuid_str[100];
743 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
744 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
745 }
746
747
748 static void wpa_supplicant_wps_event_er_enrollee_add(
749 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
750 {
751 char uuid_str[100];
752 char dev_type[WPS_DEV_TYPE_BUFSIZE];
753
754 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
755 if (enrollee->pri_dev_type)
756 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
757 sizeof(dev_type));
758 else
759 dev_type[0] = '\0';
760
761 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
762 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
763 "|%s|%s|%s|%s|%s|",
764 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
765 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
766 enrollee->dev_name ? enrollee->dev_name : "",
767 enrollee->manufacturer ? enrollee->manufacturer : "",
768 enrollee->model_name ? enrollee->model_name : "",
769 enrollee->model_number ? enrollee->model_number : "",
770 enrollee->serial_number ? enrollee->serial_number : "");
771 }
772
773
774 static void wpa_supplicant_wps_event_er_enrollee_remove(
775 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
776 {
777 char uuid_str[100];
778 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
779 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
780 uuid_str, MAC2STR(enrollee->mac_addr));
781 }
782
783
784 static void wpa_supplicant_wps_event_er_ap_settings(
785 struct wpa_supplicant *wpa_s,
786 struct wps_event_er_ap_settings *ap_settings)
787 {
788 char uuid_str[100];
789 char key_str[65];
790 const struct wps_credential *cred = ap_settings->cred;
791
792 key_str[0] = '\0';
793 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
794 if (cred->key_len >= 8 && cred->key_len <= 64) {
795 os_memcpy(key_str, cred->key, cred->key_len);
796 key_str[cred->key_len] = '\0';
797 }
798 }
799
800 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
801 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
802 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
803 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
804 "key=%s",
805 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
806 cred->auth_type, cred->encr_type, key_str);
807 }
808
809
810 static void wpa_supplicant_wps_event_er_set_sel_reg(
811 struct wpa_supplicant *wpa_s,
812 struct wps_event_er_set_selected_registrar *ev)
813 {
814 char uuid_str[100];
815
816 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
817 switch (ev->state) {
818 case WPS_ER_SET_SEL_REG_START:
819 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
820 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
821 "sel_reg_config_methods=0x%x",
822 uuid_str, ev->sel_reg, ev->dev_passwd_id,
823 ev->sel_reg_config_methods);
824 break;
825 case WPS_ER_SET_SEL_REG_DONE:
826 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
827 "uuid=%s state=DONE", uuid_str);
828 break;
829 case WPS_ER_SET_SEL_REG_FAILED:
830 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
831 "uuid=%s state=FAILED", uuid_str);
832 break;
833 }
834 }
835
836
837 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
838 union wps_event_data *data)
839 {
840 struct wpa_supplicant *wpa_s = ctx;
841 switch (event) {
842 case WPS_EV_M2D:
843 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
844 break;
845 case WPS_EV_FAIL:
846 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
847 break;
848 case WPS_EV_SUCCESS:
849 wpa_supplicant_wps_event_success(wpa_s);
850 break;
851 case WPS_EV_PWD_AUTH_FAIL:
852 #ifdef CONFIG_AP
853 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
854 wpa_supplicant_ap_pwd_auth_fail(wpa_s);
855 #endif /* CONFIG_AP */
856 break;
857 case WPS_EV_PBC_OVERLAP:
858 break;
859 case WPS_EV_PBC_TIMEOUT:
860 break;
861 case WPS_EV_PBC_ACTIVE:
862 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE);
863 break;
864 case WPS_EV_PBC_DISABLE:
865 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE);
866 break;
867 case WPS_EV_ER_AP_ADD:
868 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
869 break;
870 case WPS_EV_ER_AP_REMOVE:
871 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
872 break;
873 case WPS_EV_ER_ENROLLEE_ADD:
874 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
875 &data->enrollee);
876 break;
877 case WPS_EV_ER_ENROLLEE_REMOVE:
878 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
879 &data->enrollee);
880 break;
881 case WPS_EV_ER_AP_SETTINGS:
882 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
883 &data->ap_settings);
884 break;
885 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
886 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
887 &data->set_sel_reg);
888 break;
889 case WPS_EV_AP_PIN_SUCCESS:
890 break;
891 }
892 }
893
894
895 static int wpa_supplicant_wps_rf_band(void *ctx)
896 {
897 struct wpa_supplicant *wpa_s = ctx;
898
899 if (!wpa_s->current_ssid || !wpa_s->assoc_freq)
900 return 0;
901
902 return (wpa_s->assoc_freq > 50000) ? WPS_RF_60GHZ :
903 (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ;
904 }
905
906
907 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
908 {
909 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
910 eap_is_wps_pin_enrollee(&ssid->eap))
911 return WPS_REQ_ENROLLEE;
912 else
913 return WPS_REQ_REGISTRAR;
914 }
915
916
917 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
918 {
919 int id;
920 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
921
922 wpa_s->after_wps = 0;
923 wpa_s->known_wps_freq = 0;
924
925 prev_current = wpa_s->current_ssid;
926
927 /* Enable the networks disabled during wpas_wps_reassoc */
928 wpas_wps_reenable_networks(wpa_s);
929
930 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
931 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
932
933 /* Remove any existing WPS network from configuration */
934 ssid = wpa_s->conf->ssid;
935 while (ssid) {
936 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
937 if (ssid == wpa_s->current_ssid) {
938 wpa_s->own_disconnect_req = 1;
939 wpa_supplicant_deauthenticate(
940 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
941 }
942 id = ssid->id;
943 remove_ssid = ssid;
944 } else
945 id = -1;
946 ssid = ssid->next;
947 if (id >= 0) {
948 if (prev_current == remove_ssid) {
949 wpa_sm_set_config(wpa_s->wpa, NULL);
950 eapol_sm_notify_config(wpa_s->eapol, NULL,
951 NULL);
952 }
953 wpas_notify_network_removed(wpa_s, remove_ssid);
954 wpa_config_remove_network(wpa_s->conf, id);
955 }
956 }
957
958 wpas_wps_clear_ap_info(wpa_s);
959 }
960
961
962 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
963 {
964 struct wpa_supplicant *wpa_s = eloop_ctx;
965 union wps_event_data data;
966
967 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
968 "out");
969 os_memset(&data, 0, sizeof(data));
970 data.fail.config_error = WPS_CFG_MSG_TIMEOUT;
971 data.fail.error_indication = WPS_EI_NO_ERROR;
972 /*
973 * Call wpas_notify_wps_event_fail() directly instead of through
974 * wpa_supplicant_wps_event() which would end up registering unnecessary
975 * timeouts (those are only for the case where the failure happens
976 * during an EAP-WSC exchange).
977 */
978 wpas_notify_wps_event_fail(wpa_s, &data.fail);
979 wpas_clear_wps(wpa_s);
980 }
981
982
983 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
984 int registrar, const u8 *dev_addr,
985 const u8 *bssid)
986 {
987 struct wpa_ssid *ssid;
988
989 ssid = wpa_config_add_network(wpa_s->conf);
990 if (ssid == NULL)
991 return NULL;
992 wpas_notify_network_added(wpa_s, ssid);
993 wpa_config_set_network_defaults(ssid);
994 ssid->temporary = 1;
995 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
996 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
997 wpa_config_set(ssid, "identity", registrar ?
998 "\"" WSC_ID_REGISTRAR "\"" :
999 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
1000 wpas_notify_network_removed(wpa_s, ssid);
1001 wpa_config_remove_network(wpa_s->conf, ssid->id);
1002 return NULL;
1003 }
1004
1005 #ifdef CONFIG_P2P
1006 if (dev_addr)
1007 os_memcpy(ssid->go_p2p_dev_addr, dev_addr, ETH_ALEN);
1008 #endif /* CONFIG_P2P */
1009
1010 if (bssid) {
1011 #ifndef CONFIG_P2P
1012 struct wpa_bss *bss;
1013 int count = 0;
1014 #endif /* CONFIG_P2P */
1015
1016 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
1017 ssid->bssid_set = 1;
1018
1019 /*
1020 * Note: With P2P, the SSID may change at the time the WPS
1021 * provisioning is started, so better not filter the AP based
1022 * on the current SSID in the scan results.
1023 */
1024 #ifndef CONFIG_P2P
1025 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1026 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
1027 continue;
1028
1029 os_free(ssid->ssid);
1030 ssid->ssid = os_malloc(bss->ssid_len);
1031 if (ssid->ssid == NULL)
1032 break;
1033 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
1034 ssid->ssid_len = bss->ssid_len;
1035 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
1036 "scan results",
1037 ssid->ssid, ssid->ssid_len);
1038 count++;
1039 }
1040
1041 if (count > 1) {
1042 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
1043 "for the AP; use wildcard");
1044 os_free(ssid->ssid);
1045 ssid->ssid = NULL;
1046 ssid->ssid_len = 0;
1047 }
1048 #endif /* CONFIG_P2P */
1049 }
1050
1051 return ssid;
1052 }
1053
1054
1055 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s,
1056 struct wpa_ssid *selected)
1057 {
1058 struct wpa_ssid *ssid;
1059
1060 if (wpa_s->current_ssid) {
1061 wpa_s->own_disconnect_req = 1;
1062 wpa_supplicant_deauthenticate(
1063 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1064 }
1065
1066 /* Mark all other networks disabled and trigger reassociation */
1067 ssid = wpa_s->conf->ssid;
1068 while (ssid) {
1069 int was_disabled = ssid->disabled;
1070 ssid->disabled_for_connect = 0;
1071 /*
1072 * In case the network object corresponds to a persistent group
1073 * then do not send out network disabled signal. In addition,
1074 * do not change disabled status of persistent network objects
1075 * from 2 to 1 should we connect to another network.
1076 */
1077 if (was_disabled != 2) {
1078 ssid->disabled = ssid != selected;
1079 if (was_disabled != ssid->disabled) {
1080 if (ssid->disabled)
1081 ssid->disabled_for_connect = 1;
1082 wpas_notify_network_enabled_changed(wpa_s,
1083 ssid);
1084 }
1085 }
1086 ssid = ssid->next;
1087 }
1088 }
1089
1090
1091 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
1092 struct wpa_ssid *selected, const u8 *bssid,
1093 int freq)
1094 {
1095 struct wpa_bss *bss;
1096
1097 wpa_s->wps_run++;
1098 if (wpa_s->wps_run == 0)
1099 wpa_s->wps_run++;
1100 wpa_s->after_wps = 0;
1101 wpa_s->known_wps_freq = 0;
1102 if (freq) {
1103 wpa_s->after_wps = 5;
1104 wpa_s->wps_freq = freq;
1105 } else if (bssid) {
1106 bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1107 if (bss && bss->freq > 0) {
1108 wpa_s->known_wps_freq = 1;
1109 wpa_s->wps_freq = bss->freq;
1110 }
1111 }
1112
1113 wpas_wps_temp_disable(wpa_s, selected);
1114
1115 wpa_s->disconnected = 0;
1116 wpa_s->reassociate = 1;
1117 wpa_s->scan_runs = 0;
1118 wpa_s->normal_scans = 0;
1119 wpa_s->wps_success = 0;
1120 wpa_s->blacklist_cleared = 0;
1121
1122 wpa_supplicant_cancel_sched_scan(wpa_s);
1123 wpa_supplicant_req_scan(wpa_s, 0, 0);
1124 }
1125
1126
1127 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
1128 int p2p_group)
1129 {
1130 struct wpa_ssid *ssid;
1131
1132 #ifdef CONFIG_AP
1133 if (wpa_s->ap_iface) {
1134 wpa_printf(MSG_DEBUG,
1135 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
1136 return -1;
1137 }
1138 #endif /* CONFIG_AP */
1139 wpas_clear_wps(wpa_s);
1140 ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid);
1141 if (ssid == NULL)
1142 return -1;
1143 ssid->temporary = 1;
1144 ssid->p2p_group = p2p_group;
1145 /*
1146 * When starting a regular WPS process (not P2P group formation)
1147 * the registrar/final station can be either AP or PCP
1148 * so use a "don't care" value for the pbss flag.
1149 */
1150 if (!p2p_group)
1151 ssid->pbss = 2;
1152 #ifdef CONFIG_P2P
1153 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1154 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1155 if (ssid->ssid) {
1156 ssid->ssid_len = wpa_s->go_params->ssid_len;
1157 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1158 ssid->ssid_len);
1159 if (wpa_s->go_params->freq > 56160) {
1160 /* P2P in 60 GHz uses PBSS */
1161 ssid->pbss = 1;
1162 }
1163 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1164 "SSID", ssid->ssid, ssid->ssid_len);
1165 }
1166 }
1167 #endif /* CONFIG_P2P */
1168 if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0)
1169 return -1;
1170 if (wpa_s->wps_fragment_size)
1171 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1172 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1173 wpa_s, NULL);
1174 wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
1175 return 0;
1176 }
1177
1178
1179 static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s,
1180 const u8 *dev_addr, const u8 *bssid,
1181 const char *pin, int p2p_group, u16 dev_pw_id,
1182 const u8 *peer_pubkey_hash,
1183 const u8 *ssid_val, size_t ssid_len, int freq)
1184 {
1185 struct wpa_ssid *ssid;
1186 char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN];
1187 unsigned int rpin = 0;
1188 char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10];
1189
1190 #ifdef CONFIG_AP
1191 if (wpa_s->ap_iface) {
1192 wpa_printf(MSG_DEBUG,
1193 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
1194 return -1;
1195 }
1196 #endif /* CONFIG_AP */
1197 wpas_clear_wps(wpa_s);
1198 if (bssid && is_zero_ether_addr(bssid))
1199 bssid = NULL;
1200 ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid);
1201 if (ssid == NULL) {
1202 wpa_printf(MSG_DEBUG, "WPS: Could not add network");
1203 return -1;
1204 }
1205 ssid->temporary = 1;
1206 ssid->p2p_group = p2p_group;
1207 /*
1208 * When starting a regular WPS process (not P2P group formation)
1209 * the registrar/final station can be either AP or PCP
1210 * so use a "don't care" value for the pbss flag.
1211 */
1212 if (!p2p_group)
1213 ssid->pbss = 2;
1214 if (ssid_val) {
1215 ssid->ssid = os_malloc(ssid_len);
1216 if (ssid->ssid) {
1217 os_memcpy(ssid->ssid, ssid_val, ssid_len);
1218 ssid->ssid_len = ssid_len;
1219 }
1220 }
1221 if (peer_pubkey_hash) {
1222 os_memcpy(hash, " pkhash=", 8);
1223 wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8,
1224 peer_pubkey_hash,
1225 WPS_OOB_PUBKEY_HASH_LEN);
1226 } else {
1227 hash[0] = '\0';
1228 }
1229 #ifdef CONFIG_P2P
1230 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1231 os_free(ssid->ssid);
1232 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1233 if (ssid->ssid) {
1234 ssid->ssid_len = wpa_s->go_params->ssid_len;
1235 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1236 ssid->ssid_len);
1237 if (wpa_s->go_params->freq > 56160) {
1238 /* P2P in 60 GHz uses PBSS */
1239 ssid->pbss = 1;
1240 }
1241 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1242 "SSID", ssid->ssid, ssid->ssid_len);
1243 }
1244 }
1245 #endif /* CONFIG_P2P */
1246 if (pin)
1247 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"",
1248 pin, dev_pw_id, hash);
1249 else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) {
1250 os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"",
1251 dev_pw_id, hash);
1252 } else {
1253 if (wps_generate_pin(&rpin) < 0) {
1254 wpa_printf(MSG_DEBUG, "WPS: Could not generate PIN");
1255 return -1;
1256 }
1257 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"",
1258 rpin, dev_pw_id, hash);
1259 }
1260 if (wpa_config_set(ssid, "phase1", val, 0) < 0) {
1261 wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val);
1262 return -1;
1263 }
1264 if (wpa_s->wps_fragment_size)
1265 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1266 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1267 wpa_s, NULL);
1268 wpa_s->wps_ap_iter = 1;
1269 wpas_wps_reassoc(wpa_s, ssid, bssid, freq);
1270 return rpin;
1271 }
1272
1273
1274 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
1275 const char *pin, int p2p_group, u16 dev_pw_id)
1276 {
1277 os_get_reltime(&wpa_s->wps_pin_start_time);
1278 return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group,
1279 dev_pw_id, NULL, NULL, 0, 0);
1280 }
1281
1282
1283 void wpas_wps_pbc_overlap(struct wpa_supplicant *wpa_s)
1284 {
1285 union wps_event_data data;
1286
1287 os_memset(&data, 0, sizeof(data));
1288 data.fail.config_error = WPS_CFG_MULTIPLE_PBC_DETECTED;
1289 data.fail.error_indication = WPS_EI_NO_ERROR;
1290 /*
1291 * Call wpas_notify_wps_event_fail() directly instead of through
1292 * wpa_supplicant_wps_event() which would end up registering unnecessary
1293 * timeouts (those are only for the case where the failure happens
1294 * during an EAP-WSC exchange).
1295 */
1296 wpas_notify_wps_event_fail(wpa_s, &data.fail);
1297 }
1298
1299 /* Cancel the wps pbc/pin requests */
1300 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
1301 {
1302 #ifdef CONFIG_AP
1303 if (wpa_s->ap_iface) {
1304 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
1305 return wpa_supplicant_ap_wps_cancel(wpa_s);
1306 }
1307 #endif /* CONFIG_AP */
1308
1309 if (wpa_s->wpa_state == WPA_SCANNING ||
1310 wpa_s->wpa_state == WPA_DISCONNECTED) {
1311 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
1312 wpa_supplicant_cancel_scan(wpa_s);
1313 wpas_clear_wps(wpa_s);
1314 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
1315 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
1316 "deauthenticate");
1317 wpa_s->own_disconnect_req = 1;
1318 wpa_supplicant_deauthenticate(wpa_s,
1319 WLAN_REASON_DEAUTH_LEAVING);
1320 wpas_clear_wps(wpa_s);
1321 } else {
1322 wpas_wps_reenable_networks(wpa_s);
1323 wpas_wps_clear_ap_info(wpa_s);
1324 if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) >
1325 0)
1326 wpas_clear_wps(wpa_s);
1327 }
1328
1329 wpa_s->after_wps = 0;
1330
1331 return 0;
1332 }
1333
1334
1335 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
1336 const char *pin, struct wps_new_ap_settings *settings)
1337 {
1338 struct wpa_ssid *ssid;
1339 char val[200];
1340 char *pos, *end;
1341 int res;
1342
1343 #ifdef CONFIG_AP
1344 if (wpa_s->ap_iface) {
1345 wpa_printf(MSG_DEBUG,
1346 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
1347 return -1;
1348 }
1349 #endif /* CONFIG_AP */
1350 if (!pin)
1351 return -1;
1352 wpas_clear_wps(wpa_s);
1353 ssid = wpas_wps_add_network(wpa_s, 1, NULL, bssid);
1354 if (ssid == NULL)
1355 return -1;
1356 ssid->temporary = 1;
1357 pos = val;
1358 end = pos + sizeof(val);
1359 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1360 if (os_snprintf_error(end - pos, res))
1361 return -1;
1362 pos += res;
1363 if (settings) {
1364 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1365 "new_encr=%s new_key=%s",
1366 settings->ssid_hex, settings->auth,
1367 settings->encr, settings->key_hex);
1368 if (os_snprintf_error(end - pos, res))
1369 return -1;
1370 pos += res;
1371 }
1372 res = os_snprintf(pos, end - pos, "\"");
1373 if (os_snprintf_error(end - pos, res))
1374 return -1;
1375 if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1376 return -1;
1377 if (wpa_s->wps_fragment_size)
1378 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1379 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1380 wpa_s, NULL);
1381 wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
1382 return 0;
1383 }
1384
1385
1386 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr,
1387 const u8 *p2p_dev_addr, const u8 *psk,
1388 size_t psk_len)
1389 {
1390 if (is_zero_ether_addr(p2p_dev_addr)) {
1391 wpa_printf(MSG_DEBUG,
1392 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
1393 MAC2STR(mac_addr));
1394 } else {
1395 wpa_printf(MSG_DEBUG,
1396 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR
1397 " P2P Device Addr " MACSTR,
1398 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
1399 }
1400 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1401
1402 /* TODO */
1403
1404 return 0;
1405 }
1406
1407
1408 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1409 const struct wps_device_data *dev)
1410 {
1411 char uuid[40], txt[400];
1412 int len;
1413 char devtype[WPS_DEV_TYPE_BUFSIZE];
1414 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1415 return;
1416 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1417 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1418 " [%s|%s|%s|%s|%s|%s]",
1419 uuid, MAC2STR(dev->mac_addr), dev->device_name,
1420 dev->manufacturer, dev->model_name,
1421 dev->model_number, dev->serial_number,
1422 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1423 sizeof(devtype)));
1424 if (!os_snprintf_error(sizeof(txt), len))
1425 wpa_printf(MSG_INFO, "%s", txt);
1426 }
1427
1428
1429 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1430 u16 sel_reg_config_methods)
1431 {
1432 #ifdef CONFIG_WPS_ER
1433 struct wpa_supplicant *wpa_s = ctx;
1434
1435 if (wpa_s->wps_er == NULL)
1436 return;
1437 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1438 "dev_password_id=%u sel_reg_config_methods=0x%x",
1439 sel_reg, dev_passwd_id, sel_reg_config_methods);
1440 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1441 sel_reg_config_methods);
1442 #endif /* CONFIG_WPS_ER */
1443 }
1444
1445
1446 static u16 wps_fix_config_methods(u16 config_methods)
1447 {
1448 if ((config_methods &
1449 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1450 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1451 wpa_printf(MSG_INFO, "WPS: Converting display to "
1452 "virtual_display for WPS 2.0 compliance");
1453 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1454 }
1455 if ((config_methods &
1456 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1457 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1458 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1459 "virtual_push_button for WPS 2.0 compliance");
1460 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1461 }
1462
1463 return config_methods;
1464 }
1465
1466
1467 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1468 struct wps_context *wps)
1469 {
1470 char buf[50];
1471 const char *src;
1472
1473 if (is_nil_uuid(wpa_s->conf->uuid)) {
1474 struct wpa_supplicant *first;
1475 first = wpa_s->global->ifaces;
1476 while (first && first->next)
1477 first = first->next;
1478 if (first && first != wpa_s) {
1479 if (wps != wpa_s->global->ifaces->wps)
1480 os_memcpy(wps->uuid,
1481 wpa_s->global->ifaces->wps->uuid,
1482 WPS_UUID_LEN);
1483 src = "from the first interface";
1484 } else {
1485 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1486 src = "based on MAC address";
1487 }
1488 } else {
1489 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1490 src = "based on configuration";
1491 }
1492
1493 uuid_bin2str(wps->uuid, buf, sizeof(buf));
1494 wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf);
1495 }
1496
1497
1498 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1499 struct wps_context *wps)
1500 {
1501 wpabuf_free(wps->dev.vendor_ext_m1);
1502 wps->dev.vendor_ext_m1 = NULL;
1503
1504 if (wpa_s->conf->wps_vendor_ext_m1) {
1505 wps->dev.vendor_ext_m1 =
1506 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1507 if (!wps->dev.vendor_ext_m1) {
1508 wpa_printf(MSG_ERROR, "WPS: Cannot "
1509 "allocate memory for vendor_ext_m1");
1510 }
1511 }
1512 }
1513
1514
1515 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1516 {
1517 struct wps_context *wps;
1518 struct wps_registrar_config rcfg;
1519 struct hostapd_hw_modes *modes;
1520 u16 m;
1521
1522 wps = os_zalloc(sizeof(*wps));
1523 if (wps == NULL)
1524 return -1;
1525
1526 wps->cred_cb = wpa_supplicant_wps_cred;
1527 wps->event_cb = wpa_supplicant_wps_event;
1528 wps->rf_band_cb = wpa_supplicant_wps_rf_band;
1529 wps->cb_ctx = wpa_s;
1530
1531 wps->dev.device_name = wpa_s->conf->device_name;
1532 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1533 wps->dev.model_name = wpa_s->conf->model_name;
1534 wps->dev.model_number = wpa_s->conf->model_number;
1535 wps->dev.serial_number = wpa_s->conf->serial_number;
1536 wps->config_methods =
1537 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1538 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1539 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1540 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1541 "methods are not allowed at the same time");
1542 os_free(wps);
1543 return -1;
1544 }
1545 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1546 wps->dev.config_methods = wps->config_methods;
1547 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1548 WPS_DEV_TYPE_LEN);
1549
1550 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1551 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1552 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1553
1554 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1555
1556 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1557 modes = wpa_s->hw.modes;
1558 if (modes) {
1559 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1560 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1561 modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1562 wps->dev.rf_bands |= WPS_RF_24GHZ;
1563 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1564 wps->dev.rf_bands |= WPS_RF_50GHZ;
1565 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD)
1566 wps->dev.rf_bands |= WPS_RF_60GHZ;
1567 }
1568 }
1569 if (wps->dev.rf_bands == 0) {
1570 /*
1571 * Default to claiming support for both bands if the driver
1572 * does not provide support for fetching supported bands.
1573 */
1574 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1575 }
1576 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1577 wpas_wps_set_uuid(wpa_s, wps);
1578
1579 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1580 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1581
1582 os_memset(&rcfg, 0, sizeof(rcfg));
1583 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1584 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1585 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1586 rcfg.cb_ctx = wpa_s;
1587
1588 wps->registrar = wps_registrar_init(wps, &rcfg);
1589 if (wps->registrar == NULL) {
1590 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1591 os_free(wps);
1592 return -1;
1593 }
1594
1595 wpa_s->wps = wps;
1596
1597 return 0;
1598 }
1599
1600
1601 #ifdef CONFIG_WPS_ER
1602 static void wpas_wps_nfc_clear(struct wps_context *wps)
1603 {
1604 wps->ap_nfc_dev_pw_id = 0;
1605 wpabuf_free(wps->ap_nfc_dh_pubkey);
1606 wps->ap_nfc_dh_pubkey = NULL;
1607 wpabuf_free(wps->ap_nfc_dh_privkey);
1608 wps->ap_nfc_dh_privkey = NULL;
1609 wpabuf_free(wps->ap_nfc_dev_pw);
1610 wps->ap_nfc_dev_pw = NULL;
1611 }
1612 #endif /* CONFIG_WPS_ER */
1613
1614
1615 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1616 {
1617 wpas_wps_assoc_with_cred_cancel(wpa_s);
1618 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1619 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
1620 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
1621 wpas_wps_clear_ap_info(wpa_s);
1622
1623 #ifdef CONFIG_P2P
1624 eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL);
1625 #endif /* CONFIG_P2P */
1626
1627 if (wpa_s->wps == NULL)
1628 return;
1629
1630 #ifdef CONFIG_WPS_ER
1631 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1632 wpa_s->wps_er = NULL;
1633 wpas_wps_nfc_clear(wpa_s->wps);
1634 #endif /* CONFIG_WPS_ER */
1635
1636 wps_registrar_deinit(wpa_s->wps->registrar);
1637 wpabuf_free(wpa_s->wps->dh_pubkey);
1638 wpabuf_free(wpa_s->wps->dh_privkey);
1639 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
1640 os_free(wpa_s->wps->network_key);
1641 os_free(wpa_s->wps);
1642 wpa_s->wps = NULL;
1643 }
1644
1645
1646 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1647 struct wpa_ssid *ssid, struct wpa_bss *bss)
1648 {
1649 struct wpabuf *wps_ie;
1650
1651 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1652 return -1;
1653
1654 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1655 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1656 if (!wps_ie) {
1657 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1658 return 0;
1659 }
1660
1661 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1662 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1663 "without active PBC Registrar");
1664 wpabuf_free(wps_ie);
1665 return 0;
1666 }
1667
1668 /* TODO: overlap detection */
1669 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1670 "(Active PBC)");
1671 wpabuf_free(wps_ie);
1672 return 1;
1673 }
1674
1675 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1676 if (!wps_ie) {
1677 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1678 return 0;
1679 }
1680
1681 /*
1682 * Start with WPS APs that advertise our address as an
1683 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1684 * allow any WPS AP after couple of scans since some APs do not
1685 * set Selected Registrar attribute properly when using
1686 * external Registrar.
1687 */
1688 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1689 struct os_reltime age;
1690
1691 os_reltime_age(&wpa_s->wps_pin_start_time, &age);
1692
1693 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG ||
1694 age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) {
1695 wpa_printf(MSG_DEBUG,
1696 " skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)",
1697 wpa_s->scan_runs, (int) age.sec);
1698 wpabuf_free(wps_ie);
1699 return 0;
1700 }
1701 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1702 } else {
1703 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1704 "(Authorized MAC or Active PIN)");
1705 }
1706 wpabuf_free(wps_ie);
1707 return 1;
1708 }
1709
1710 if (wps_ie) {
1711 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1712 wpabuf_free(wps_ie);
1713 return 1;
1714 }
1715
1716 return -1;
1717 }
1718
1719
1720 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1721 struct wpa_ssid *ssid,
1722 struct wpa_bss *bss)
1723 {
1724 struct wpabuf *wps_ie = NULL;
1725 int ret = 0;
1726
1727 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1728 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1729 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1730 /* allow wildcard SSID for WPS PBC */
1731 ret = 1;
1732 }
1733 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1734 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1735 if (wps_ie &&
1736 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1737 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1738 /* allow wildcard SSID for WPS PIN */
1739 ret = 1;
1740 }
1741 }
1742
1743 if (!ret && ssid->bssid_set &&
1744 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1745 /* allow wildcard SSID due to hardcoded BSSID match */
1746 ret = 1;
1747 }
1748
1749 #ifdef CONFIG_WPS_STRICT
1750 if (wps_ie) {
1751 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1752 0, bss->bssid) < 0)
1753 ret = 0;
1754 if (bss->beacon_ie_len) {
1755 struct wpabuf *bcn_wps;
1756 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
1757 bss, WPS_IE_VENDOR_TYPE);
1758 if (bcn_wps == NULL) {
1759 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1760 "missing from AP Beacon");
1761 ret = 0;
1762 } else {
1763 if (wps_validate_beacon(wps_ie) < 0)
1764 ret = 0;
1765 wpabuf_free(bcn_wps);
1766 }
1767 }
1768 }
1769 #endif /* CONFIG_WPS_STRICT */
1770
1771 wpabuf_free(wps_ie);
1772
1773 return ret;
1774 }
1775
1776
1777 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1778 struct wpa_bss *selected, struct wpa_ssid *ssid)
1779 {
1780 const u8 *sel_uuid;
1781 struct wpabuf *wps_ie;
1782 int ret = 0;
1783 size_t i;
1784
1785 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1786 return 0;
1787
1788 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1789 "present in scan results; selected BSSID " MACSTR,
1790 MAC2STR(selected->bssid));
1791
1792 /* Make sure that only one AP is in active PBC mode */
1793 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1794 if (wps_ie) {
1795 sel_uuid = wps_get_uuid_e(wps_ie);
1796 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1797 sel_uuid, UUID_LEN);
1798 } else {
1799 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1800 "WPS IE?!");
1801 sel_uuid = NULL;
1802 }
1803
1804 for (i = 0; i < wpa_s->num_wps_ap; i++) {
1805 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
1806
1807 if (!ap->pbc_active ||
1808 os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0)
1809 continue;
1810
1811 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1812 MACSTR, MAC2STR(ap->bssid));
1813 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1814 ap->uuid, UUID_LEN);
1815 if (sel_uuid == NULL ||
1816 os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) {
1817 ret = 1; /* PBC overlap */
1818 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1819 MACSTR " and " MACSTR,
1820 MAC2STR(selected->bssid),
1821 MAC2STR(ap->bssid));
1822 break;
1823 }
1824
1825 /* TODO: verify that this is reasonable dual-band situation */
1826 }
1827
1828 wpabuf_free(wps_ie);
1829
1830 return ret;
1831 }
1832
1833
1834 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1835 {
1836 struct wpa_bss *bss;
1837 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1838
1839 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1840 return;
1841
1842 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1843 struct wpabuf *ie;
1844 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1845 if (!ie)
1846 continue;
1847 if (wps_is_selected_pbc_registrar(ie))
1848 pbc++;
1849 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1850 auth++;
1851 else if (wps_is_selected_pin_registrar(ie))
1852 pin++;
1853 else
1854 wps++;
1855 wpabuf_free(ie);
1856 }
1857
1858 if (pbc)
1859 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1860 else if (auth)
1861 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1862 else if (pin)
1863 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1864 else if (wps)
1865 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1866 }
1867
1868
1869 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1870 {
1871 struct wpa_ssid *ssid;
1872
1873 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1874 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1875 return 1;
1876 }
1877
1878 return 0;
1879 }
1880
1881
1882 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1883 char *end)
1884 {
1885 struct wpabuf *wps_ie;
1886 int ret;
1887
1888 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1889 if (wps_ie == NULL)
1890 return 0;
1891
1892 ret = wps_attr_text(wps_ie, buf, end);
1893 wpabuf_free(wps_ie);
1894 return ret;
1895 }
1896
1897
1898 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1899 {
1900 #ifdef CONFIG_WPS_ER
1901 if (wpa_s->wps_er) {
1902 wps_er_refresh(wpa_s->wps_er);
1903 return 0;
1904 }
1905 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1906 if (wpa_s->wps_er == NULL)
1907 return -1;
1908 return 0;
1909 #else /* CONFIG_WPS_ER */
1910 return 0;
1911 #endif /* CONFIG_WPS_ER */
1912 }
1913
1914
1915 void wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1916 {
1917 #ifdef CONFIG_WPS_ER
1918 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1919 wpa_s->wps_er = NULL;
1920 #endif /* CONFIG_WPS_ER */
1921 }
1922
1923
1924 #ifdef CONFIG_WPS_ER
1925 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1926 const char *uuid, const char *pin)
1927 {
1928 u8 u[UUID_LEN];
1929 const u8 *use_uuid = NULL;
1930 u8 addr_buf[ETH_ALEN];
1931
1932 if (os_strcmp(uuid, "any") == 0) {
1933 } else if (uuid_str2bin(uuid, u) == 0) {
1934 use_uuid = u;
1935 } else if (hwaddr_aton(uuid, addr_buf) == 0) {
1936 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf);
1937 if (use_uuid == NULL)
1938 return -1;
1939 } else
1940 return -1;
1941 return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1942 use_uuid,
1943 (const u8 *) pin, os_strlen(pin), 300);
1944 }
1945
1946
1947 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1948 {
1949 u8 u[UUID_LEN], *use_uuid = NULL;
1950 u8 addr[ETH_ALEN], *use_addr = NULL;
1951
1952 if (uuid_str2bin(uuid, u) == 0)
1953 use_uuid = u;
1954 else if (hwaddr_aton(uuid, addr) == 0)
1955 use_addr = addr;
1956 else
1957 return -1;
1958 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr);
1959 }
1960
1961
1962 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1963 const char *pin)
1964 {
1965 u8 u[UUID_LEN], *use_uuid = NULL;
1966 u8 addr[ETH_ALEN], *use_addr = NULL;
1967
1968 if (uuid_str2bin(uuid, u) == 0)
1969 use_uuid = u;
1970 else if (hwaddr_aton(uuid, addr) == 0)
1971 use_addr = addr;
1972 else
1973 return -1;
1974
1975 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin,
1976 os_strlen(pin));
1977 }
1978
1979
1980 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid,
1981 struct wps_credential *cred)
1982 {
1983 os_memset(cred, 0, sizeof(*cred));
1984 if (ssid->ssid_len > SSID_MAX_LEN)
1985 return -1;
1986 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len);
1987 cred->ssid_len = ssid->ssid_len;
1988 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1989 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1990 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1991 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1992 cred->encr_type = WPS_ENCR_AES;
1993 else
1994 cred->encr_type = WPS_ENCR_TKIP;
1995 if (ssid->passphrase) {
1996 cred->key_len = os_strlen(ssid->passphrase);
1997 if (cred->key_len >= 64)
1998 return -1;
1999 os_memcpy(cred->key, ssid->passphrase, cred->key_len);
2000 } else if (ssid->psk_set) {
2001 cred->key_len = 32;
2002 os_memcpy(cred->key, ssid->psk, 32);
2003 } else
2004 return -1;
2005 } else {
2006 cred->auth_type = WPS_AUTH_OPEN;
2007 cred->encr_type = WPS_ENCR_NONE;
2008 }
2009
2010 return 0;
2011 }
2012
2013
2014 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
2015 int id)
2016 {
2017 u8 u[UUID_LEN], *use_uuid = NULL;
2018 u8 addr[ETH_ALEN], *use_addr = NULL;
2019 struct wpa_ssid *ssid;
2020 struct wps_credential cred;
2021 int ret;
2022
2023 if (uuid_str2bin(uuid, u) == 0)
2024 use_uuid = u;
2025 else if (hwaddr_aton(uuid, addr) == 0)
2026 use_addr = addr;
2027 else
2028 return -1;
2029 ssid = wpa_config_get_network(wpa_s->conf, id);
2030 if (ssid == NULL || ssid->ssid == NULL)
2031 return -1;
2032
2033 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
2034 return -1;
2035 ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred);
2036 os_memset(&cred, 0, sizeof(cred));
2037 return ret;
2038 }
2039
2040
2041 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
2042 const char *pin, struct wps_new_ap_settings *settings)
2043 {
2044 u8 u[UUID_LEN], *use_uuid = NULL;
2045 u8 addr[ETH_ALEN], *use_addr = NULL;
2046 struct wps_credential cred;
2047 size_t len;
2048
2049 if (uuid_str2bin(uuid, u) == 0)
2050 use_uuid = u;
2051 else if (hwaddr_aton(uuid, addr) == 0)
2052 use_addr = addr;
2053 else
2054 return -1;
2055 if (settings->ssid_hex == NULL || settings->auth == NULL ||
2056 settings->encr == NULL || settings->key_hex == NULL)
2057 return -1;
2058
2059 os_memset(&cred, 0, sizeof(cred));
2060 len = os_strlen(settings->ssid_hex);
2061 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
2062 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
2063 return -1;
2064 cred.ssid_len = len / 2;
2065
2066 len = os_strlen(settings->key_hex);
2067 if ((len & 1) || len > 2 * sizeof(cred.key) ||
2068 hexstr2bin(settings->key_hex, cred.key, len / 2))
2069 return -1;
2070 cred.key_len = len / 2;
2071
2072 if (os_strcmp(settings->auth, "OPEN") == 0)
2073 cred.auth_type = WPS_AUTH_OPEN;
2074 else if (os_strcmp(settings->auth, "WPAPSK") == 0)
2075 cred.auth_type = WPS_AUTH_WPAPSK;
2076 else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
2077 cred.auth_type = WPS_AUTH_WPA2PSK;
2078 else
2079 return -1;
2080
2081 if (os_strcmp(settings->encr, "NONE") == 0)
2082 cred.encr_type = WPS_ENCR_NONE;
2083 #ifdef CONFIG_TESTING_OPTIONS
2084 else if (os_strcmp(settings->encr, "WEP") == 0)
2085 cred.encr_type = WPS_ENCR_WEP;
2086 #endif /* CONFIG_TESTING_OPTIONS */
2087 else if (os_strcmp(settings->encr, "TKIP") == 0)
2088 cred.encr_type = WPS_ENCR_TKIP;
2089 else if (os_strcmp(settings->encr, "CCMP") == 0)
2090 cred.encr_type = WPS_ENCR_AES;
2091 else
2092 return -1;
2093
2094 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr,
2095 (const u8 *) pin, os_strlen(pin), &cred);
2096 }
2097
2098
2099 #ifdef CONFIG_WPS_NFC
2100 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
2101 int ndef, const char *uuid)
2102 {
2103 struct wpabuf *ret;
2104 u8 u[UUID_LEN], *use_uuid = NULL;
2105 u8 addr[ETH_ALEN], *use_addr = NULL;
2106
2107 if (!wpa_s->wps_er)
2108 return NULL;
2109
2110 if (uuid_str2bin(uuid, u) == 0)
2111 use_uuid = u;
2112 else if (hwaddr_aton(uuid, addr) == 0)
2113 use_addr = addr;
2114 else
2115 return NULL;
2116
2117 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
2118 if (ndef && ret) {
2119 struct wpabuf *tmp;
2120 tmp = ndef_build_wifi(ret);
2121 wpabuf_free(ret);
2122 if (tmp == NULL)
2123 return NULL;
2124 ret = tmp;
2125 }
2126
2127 return ret;
2128 }
2129 #endif /* CONFIG_WPS_NFC */
2130
2131
2132 static int callbacks_pending = 0;
2133
2134 static void wpas_wps_terminate_cb(void *ctx)
2135 {
2136 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
2137 if (--callbacks_pending <= 0)
2138 eloop_terminate();
2139 }
2140 #endif /* CONFIG_WPS_ER */
2141
2142
2143 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
2144 {
2145 #ifdef CONFIG_WPS_ER
2146 if (wpa_s->wps_er) {
2147 callbacks_pending++;
2148 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
2149 wpa_s->wps_er = NULL;
2150 return 1;
2151 }
2152 #endif /* CONFIG_WPS_ER */
2153 return 0;
2154 }
2155
2156
2157 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
2158 {
2159 struct wps_context *wps = wpa_s->wps;
2160
2161 if (wps == NULL)
2162 return;
2163
2164 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
2165 wps->config_methods = wps_config_methods_str2bin(
2166 wpa_s->conf->config_methods);
2167 if ((wps->config_methods &
2168 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
2169 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
2170 wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
2171 "config methods are not allowed at the "
2172 "same time");
2173 wps->config_methods &= ~WPS_CONFIG_LABEL;
2174 }
2175 }
2176 wps->config_methods = wps_fix_config_methods(wps->config_methods);
2177 wps->dev.config_methods = wps->config_methods;
2178
2179 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
2180 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
2181 WPS_DEV_TYPE_LEN);
2182
2183 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
2184 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2185 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
2186 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2187 }
2188
2189 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
2190 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
2191
2192 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
2193 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
2194
2195 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
2196 wpas_wps_set_uuid(wpa_s, wps);
2197
2198 if (wpa_s->conf->changed_parameters &
2199 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
2200 /* Update pointers to make sure they refer current values */
2201 wps->dev.device_name = wpa_s->conf->device_name;
2202 wps->dev.manufacturer = wpa_s->conf->manufacturer;
2203 wps->dev.model_name = wpa_s->conf->model_name;
2204 wps->dev.model_number = wpa_s->conf->model_number;
2205 wps->dev.serial_number = wpa_s->conf->serial_number;
2206 }
2207 }
2208
2209
2210 #ifdef CONFIG_WPS_NFC
2211
2212 #ifdef CONFIG_WPS_ER
2213 static struct wpabuf *
2214 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef,
2215 struct wpa_ssid *ssid)
2216 {
2217 struct wpabuf *ret;
2218 struct wps_credential cred;
2219
2220 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
2221 return NULL;
2222
2223 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred);
2224
2225 if (ndef && ret) {
2226 struct wpabuf *tmp;
2227 tmp = ndef_build_wifi(ret);
2228 wpabuf_free(ret);
2229 if (tmp == NULL)
2230 return NULL;
2231 ret = tmp;
2232 }
2233
2234 return ret;
2235 }
2236 #endif /* CONFIG_WPS_ER */
2237
2238
2239 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
2240 int ndef, const char *id_str)
2241 {
2242 #ifdef CONFIG_WPS_ER
2243 if (id_str) {
2244 int id;
2245 char *end = NULL;
2246 struct wpa_ssid *ssid;
2247
2248 id = strtol(id_str, &end, 10);
2249 if (end && *end)
2250 return NULL;
2251
2252 ssid = wpa_config_get_network(wpa_s->conf, id);
2253 if (ssid == NULL)
2254 return NULL;
2255 return wpas_wps_network_config_token(wpa_s, ndef, ssid);
2256 }
2257 #endif /* CONFIG_WPS_ER */
2258 #ifdef CONFIG_AP
2259 if (wpa_s->ap_iface)
2260 return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
2261 #endif /* CONFIG_AP */
2262 return NULL;
2263 }
2264
2265
2266 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
2267 {
2268 if (wpa_s->conf->wps_nfc_pw_from_config) {
2269 return wps_nfc_token_build(ndef,
2270 wpa_s->conf->wps_nfc_dev_pw_id,
2271 wpa_s->conf->wps_nfc_dh_pubkey,
2272 wpa_s->conf->wps_nfc_dev_pw);
2273 }
2274
2275 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
2276 &wpa_s->conf->wps_nfc_dh_pubkey,
2277 &wpa_s->conf->wps_nfc_dh_privkey,
2278 &wpa_s->conf->wps_nfc_dev_pw);
2279 }
2280
2281
2282 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr,
2283 const u8 *bssid,
2284 const struct wpabuf *dev_pw, u16 dev_pw_id,
2285 int p2p_group, const u8 *peer_pubkey_hash,
2286 const u8 *ssid, size_t ssid_len, int freq)
2287 {
2288 struct wps_context *wps = wpa_s->wps;
2289 char pw[32 * 2 + 1];
2290
2291 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) {
2292 dev_pw = wpa_s->conf->wps_nfc_dev_pw;
2293 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
2294 }
2295
2296 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
2297 wpa_s->conf->wps_nfc_dh_privkey == NULL) {
2298 wpa_printf(MSG_DEBUG, "WPS: Missing DH params - "
2299 "cannot start NFC-triggered connection");
2300 return -1;
2301 }
2302
2303 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) {
2304 wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - "
2305 "cannot start NFC-triggered connection", dev_pw_id);
2306 return -1;
2307 }
2308
2309 dh5_free(wps->dh_ctx);
2310 wpabuf_free(wps->dh_pubkey);
2311 wpabuf_free(wps->dh_privkey);
2312 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2313 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2314 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
2315 wps->dh_ctx = NULL;
2316 wpabuf_free(wps->dh_pubkey);
2317 wps->dh_pubkey = NULL;
2318 wpabuf_free(wps->dh_privkey);
2319 wps->dh_privkey = NULL;
2320 wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key");
2321 return -1;
2322 }
2323 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
2324 if (wps->dh_ctx == NULL) {
2325 wpabuf_free(wps->dh_pubkey);
2326 wps->dh_pubkey = NULL;
2327 wpabuf_free(wps->dh_privkey);
2328 wps->dh_privkey = NULL;
2329 wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context");
2330 return -1;
2331 }
2332
2333 if (dev_pw) {
2334 wpa_snprintf_hex_uppercase(pw, sizeof(pw),
2335 wpabuf_head(dev_pw),
2336 wpabuf_len(dev_pw));
2337 }
2338 return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid,
2339 dev_pw ? pw : NULL,
2340 p2p_group, dev_pw_id, peer_pubkey_hash,
2341 ssid, ssid_len, freq);
2342 }
2343
2344
2345 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
2346 struct wps_parse_attr *attr)
2347 {
2348 /*
2349 * Disable existing networks temporarily to allow the newly learned
2350 * credential to be preferred. Enable the temporarily disabled networks
2351 * after 10 seconds.
2352 */
2353 wpas_wps_temp_disable(wpa_s, NULL);
2354 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
2355 NULL);
2356
2357 if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
2358 return -1;
2359
2360 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2361 return 0;
2362
2363 if (attr->ap_channel) {
2364 u16 chan = WPA_GET_BE16(attr->ap_channel);
2365 int freq = 0;
2366
2367 if (chan >= 1 && chan <= 13)
2368 freq = 2407 + 5 * chan;
2369 else if (chan == 14)
2370 freq = 2484;
2371 else if (chan >= 30)
2372 freq = 5000 + 5 * chan;
2373
2374 if (freq) {
2375 wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz",
2376 chan, freq);
2377 wpa_s->after_wps = 5;
2378 wpa_s->wps_freq = freq;
2379 }
2380 }
2381
2382 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
2383 "based on the received credential added");
2384 wpa_s->normal_scans = 0;
2385 wpa_supplicant_reinit_autoscan(wpa_s);
2386 wpa_s->disconnected = 0;
2387 wpa_s->reassociate = 1;
2388
2389 wpa_supplicant_cancel_sched_scan(wpa_s);
2390 wpa_supplicant_req_scan(wpa_s, 0, 0);
2391
2392 return 0;
2393 }
2394
2395
2396 #ifdef CONFIG_WPS_ER
2397 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
2398 struct wps_parse_attr *attr)
2399 {
2400 return wps_registrar_add_nfc_password_token(
2401 wpa_s->wps->registrar, attr->oob_dev_password,
2402 attr->oob_dev_password_len);
2403 }
2404 #endif /* CONFIG_WPS_ER */
2405
2406
2407 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
2408 const struct wpabuf *wps)
2409 {
2410 struct wps_parse_attr attr;
2411
2412 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
2413
2414 if (wps_parse_msg(wps, &attr)) {
2415 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
2416 return -1;
2417 }
2418
2419 if (attr.num_cred)
2420 return wpas_wps_use_cred(wpa_s, &attr);
2421
2422 #ifdef CONFIG_WPS_ER
2423 if (attr.oob_dev_password)
2424 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
2425 #endif /* CONFIG_WPS_ER */
2426
2427 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
2428 return -1;
2429 }
2430
2431
2432 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
2433 const struct wpabuf *data, int forced_freq)
2434 {
2435 const struct wpabuf *wps = data;
2436 struct wpabuf *tmp = NULL;
2437 int ret;
2438
2439 if (wpabuf_len(data) < 4)
2440 return -1;
2441
2442 if (*wpabuf_head_u8(data) != 0x10) {
2443 /* Assume this contains full NDEF record */
2444 tmp = ndef_parse_wifi(data);
2445 if (tmp == NULL) {
2446 #ifdef CONFIG_P2P
2447 tmp = ndef_parse_p2p(data);
2448 if (tmp) {
2449 ret = wpas_p2p_nfc_tag_process(wpa_s, tmp,
2450 forced_freq);
2451 wpabuf_free(tmp);
2452 return ret;
2453 }
2454 #endif /* CONFIG_P2P */
2455 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
2456 return -1;
2457 }
2458 wps = tmp;
2459 }
2460
2461 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2462 wpabuf_free(tmp);
2463 return ret;
2464 }
2465
2466
2467 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s,
2468 int ndef)
2469 {
2470 struct wpabuf *ret;
2471
2472 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
2473 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
2474 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
2475 return NULL;
2476
2477 ret = wps_build_nfc_handover_req(wpa_s->wps,
2478 wpa_s->conf->wps_nfc_dh_pubkey);
2479
2480 if (ndef && ret) {
2481 struct wpabuf *tmp;
2482 tmp = ndef_build_wifi(ret);
2483 wpabuf_free(ret);
2484 if (tmp == NULL)
2485 return NULL;
2486 ret = tmp;
2487 }
2488
2489 return ret;
2490 }
2491
2492
2493 #ifdef CONFIG_WPS_NFC
2494
2495 static struct wpabuf *
2496 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef,
2497 const char *uuid)
2498 {
2499 #ifdef CONFIG_WPS_ER
2500 struct wpabuf *ret;
2501 u8 u[UUID_LEN], *use_uuid = NULL;
2502 u8 addr[ETH_ALEN], *use_addr = NULL;
2503 struct wps_context *wps = wpa_s->wps;
2504
2505 if (wps == NULL)
2506 return NULL;
2507
2508 if (uuid == NULL)
2509 return NULL;
2510 if (uuid_str2bin(uuid, u) == 0)
2511 use_uuid = u;
2512 else if (hwaddr_aton(uuid, addr) == 0)
2513 use_addr = addr;
2514 else
2515 return NULL;
2516
2517 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) {
2518 if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
2519 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
2520 return NULL;
2521 }
2522
2523 wpas_wps_nfc_clear(wps);
2524 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
2525 wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2526 wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2527 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
2528 wpas_wps_nfc_clear(wps);
2529 return NULL;
2530 }
2531
2532 ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid,
2533 use_addr, wpa_s->conf->wps_nfc_dh_pubkey);
2534 if (ndef && ret) {
2535 struct wpabuf *tmp;
2536 tmp = ndef_build_wifi(ret);
2537 wpabuf_free(ret);
2538 if (tmp == NULL)
2539 return NULL;
2540 ret = tmp;
2541 }
2542
2543 return ret;
2544 #else /* CONFIG_WPS_ER */
2545 return NULL;
2546 #endif /* CONFIG_WPS_ER */
2547 }
2548 #endif /* CONFIG_WPS_NFC */
2549
2550
2551 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2552 int ndef, int cr, const char *uuid)
2553 {
2554 struct wpabuf *ret;
2555 if (!cr)
2556 return NULL;
2557 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
2558 if (ret)
2559 return ret;
2560 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
2561 }
2562
2563
2564 static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
2565 const struct wpabuf *data)
2566 {
2567 struct wpabuf *wps;
2568 int ret = -1;
2569 u16 wsc_len;
2570 const u8 *pos;
2571 struct wpabuf msg;
2572 struct wps_parse_attr attr;
2573 u16 dev_pw_id;
2574 const u8 *bssid = NULL;
2575 int freq = 0;
2576
2577 wps = ndef_parse_wifi(data);
2578 if (wps == NULL)
2579 return -1;
2580 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2581 "payload from NFC connection handover");
2582 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
2583 if (wpabuf_len(wps) < 2) {
2584 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select "
2585 "Message");
2586 goto out;
2587 }
2588 pos = wpabuf_head(wps);
2589 wsc_len = WPA_GET_BE16(pos);
2590 if (wsc_len > wpabuf_len(wps) - 2) {
2591 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
2592 "in Wi-Fi Handover Select Message", wsc_len);
2593 goto out;
2594 }
2595 pos += 2;
2596
2597 wpa_hexdump(MSG_DEBUG,
2598 "WPS: WSC attributes in Wi-Fi Handover Select Message",
2599 pos, wsc_len);
2600 if (wsc_len < wpabuf_len(wps) - 2) {
2601 wpa_hexdump(MSG_DEBUG,
2602 "WPS: Ignore extra data after WSC attributes",
2603 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
2604 }
2605
2606 wpabuf_set(&msg, pos, wsc_len);
2607 ret = wps_parse_msg(&msg, &attr);
2608 if (ret < 0) {
2609 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
2610 "Wi-Fi Handover Select Message");
2611 goto out;
2612 }
2613
2614 if (attr.oob_dev_password == NULL ||
2615 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
2616 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
2617 "included in Wi-Fi Handover Select Message");
2618 ret = -1;
2619 goto out;
2620 }
2621
2622 if (attr.ssid == NULL) {
2623 wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover "
2624 "Select Message");
2625 ret = -1;
2626 goto out;
2627 }
2628
2629 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len);
2630
2631 if (attr.mac_addr) {
2632 bssid = attr.mac_addr;
2633 wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR,
2634 MAC2STR(bssid));
2635 }
2636
2637 if (attr.rf_bands)
2638 wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands);
2639
2640 if (attr.ap_channel) {
2641 u16 chan = WPA_GET_BE16(attr.ap_channel);
2642
2643 wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan);
2644
2645 if (chan >= 1 && chan <= 13 &&
2646 (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ))
2647 freq = 2407 + 5 * chan;
2648 else if (chan == 14 &&
2649 (attr.rf_bands == NULL ||
2650 *attr.rf_bands & WPS_RF_24GHZ))
2651 freq = 2484;
2652 else if (chan >= 30 &&
2653 (attr.rf_bands == NULL ||
2654 *attr.rf_bands & WPS_RF_50GHZ))
2655 freq = 5000 + 5 * chan;
2656 else if (chan >= 1 && chan <= 4 &&
2657 (attr.rf_bands == NULL ||
2658 *attr.rf_bands & WPS_RF_60GHZ))
2659 freq = 56160 + 2160 * chan;
2660
2661 if (freq) {
2662 wpa_printf(MSG_DEBUG,
2663 "WPS: AP indicated channel %u -> %u MHz",
2664 chan, freq);
2665 }
2666 }
2667
2668 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
2669 attr.oob_dev_password, attr.oob_dev_password_len);
2670 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
2671 WPS_OOB_PUBKEY_HASH_LEN);
2672 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
2673 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
2674 "%u in Wi-Fi Handover Select Message", dev_pw_id);
2675 ret = -1;
2676 goto out;
2677 }
2678 wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash",
2679 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
2680
2681 ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0,
2682 attr.oob_dev_password,
2683 attr.ssid, attr.ssid_len, freq);
2684
2685 out:
2686 wpabuf_free(wps);
2687 return ret;
2688 }
2689
2690
2691 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2692 const struct wpabuf *req,
2693 const struct wpabuf *sel)
2694 {
2695 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
2696 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
2697 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
2698 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
2699 }
2700
2701
2702 int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2703 const struct wpabuf *req,
2704 const struct wpabuf *sel)
2705 {
2706 struct wpabuf *wps;
2707 int ret = -1;
2708 u16 wsc_len;
2709 const u8 *pos;
2710 struct wpabuf msg;
2711 struct wps_parse_attr attr;
2712 u16 dev_pw_id;
2713
2714 /*
2715 * Enrollee/station is always initiator of the NFC connection handover,
2716 * so use the request message here to find Enrollee public key hash.
2717 */
2718 wps = ndef_parse_wifi(req);
2719 if (wps == NULL)
2720 return -1;
2721 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2722 "payload from NFC connection handover");
2723 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
2724 if (wpabuf_len(wps) < 2) {
2725 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
2726 "Message");
2727 goto out;
2728 }
2729 pos = wpabuf_head(wps);
2730 wsc_len = WPA_GET_BE16(pos);
2731 if (wsc_len > wpabuf_len(wps) - 2) {
2732 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
2733 "in rt Wi-Fi Handover Request Message", wsc_len);
2734 goto out;
2735 }
2736 pos += 2;
2737
2738 wpa_hexdump(MSG_DEBUG,
2739 "WPS: WSC attributes in Wi-Fi Handover Request Message",
2740 pos, wsc_len);
2741 if (wsc_len < wpabuf_len(wps) - 2) {
2742 wpa_hexdump(MSG_DEBUG,
2743 "WPS: Ignore extra data after WSC attributes",
2744 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
2745 }
2746
2747 wpabuf_set(&msg, pos, wsc_len);
2748 ret = wps_parse_msg(&msg, &attr);
2749 if (ret < 0) {
2750 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
2751 "Wi-Fi Handover Request Message");
2752 goto out;
2753 }
2754
2755 if (attr.oob_dev_password == NULL ||
2756 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
2757 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
2758 "included in Wi-Fi Handover Request Message");
2759 ret = -1;
2760 goto out;
2761 }
2762
2763 if (attr.uuid_e == NULL) {
2764 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
2765 "Handover Request Message");
2766 ret = -1;
2767 goto out;
2768 }
2769
2770 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
2771
2772 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
2773 attr.oob_dev_password, attr.oob_dev_password_len);
2774 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
2775 WPS_OOB_PUBKEY_HASH_LEN);
2776 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
2777 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
2778 "%u in Wi-Fi Handover Request Message", dev_pw_id);
2779 ret = -1;
2780 goto out;
2781 }
2782 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
2783 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
2784
2785 ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar,
2786 attr.oob_dev_password,
2787 DEV_PW_NFC_CONNECTION_HANDOVER,
2788 NULL, 0, 1);
2789
2790 out:
2791 wpabuf_free(wps);
2792 return ret;
2793 }
2794
2795 #endif /* CONFIG_WPS_NFC */
2796
2797
2798 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
2799 {
2800 size_t i;
2801 struct os_reltime now;
2802
2803 if (wpa_debug_level > MSG_DEBUG)
2804 return;
2805
2806 if (wpa_s->wps_ap == NULL)
2807 return;
2808
2809 os_get_reltime(&now);
2810
2811 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2812 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2813 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
2814
2815 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
2816 "tries=%d last_attempt=%d sec ago blacklist=%d",
2817 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
2818 ap->last_attempt.sec > 0 ?
2819 (int) now.sec - (int) ap->last_attempt.sec : -1,
2820 e ? e->count : 0);
2821 }
2822 }
2823
2824
2825 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
2826 const u8 *bssid)
2827 {
2828 size_t i;
2829
2830 if (wpa_s->wps_ap == NULL)
2831 return NULL;
2832
2833 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2834 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2835 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
2836 return ap;
2837 }
2838
2839 return NULL;
2840 }
2841
2842
2843 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
2844 struct wpa_scan_res *res)
2845 {
2846 struct wpabuf *wps;
2847 enum wps_ap_info_type type;
2848 struct wps_ap_info *ap;
2849 int r, pbc_active;
2850 const u8 *uuid;
2851
2852 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
2853 return;
2854
2855 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
2856 if (wps == NULL)
2857 return;
2858
2859 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
2860 if (r == 2)
2861 type = WPS_AP_SEL_REG_OUR;
2862 else if (r == 1)
2863 type = WPS_AP_SEL_REG;
2864 else
2865 type = WPS_AP_NOT_SEL_REG;
2866
2867 uuid = wps_get_uuid_e(wps);
2868 pbc_active = wps_is_selected_pbc_registrar(wps);
2869
2870 ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
2871 if (ap) {
2872 if (ap->type != type) {
2873 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
2874 " changed type %d -> %d",
2875 MAC2STR(res->bssid), ap->type, type);
2876 ap->type = type;
2877 if (type != WPS_AP_NOT_SEL_REG)
2878 wpa_blacklist_del(wpa_s, ap->bssid);
2879 }
2880 ap->pbc_active = pbc_active;
2881 if (uuid)
2882 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN);
2883 goto out;
2884 }
2885
2886 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
2887 sizeof(struct wps_ap_info));
2888 if (ap == NULL)
2889 goto out;
2890
2891 wpa_s->wps_ap = ap;
2892 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
2893 wpa_s->num_wps_ap++;
2894
2895 os_memset(ap, 0, sizeof(*ap));
2896 os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
2897 ap->type = type;
2898 ap->pbc_active = pbc_active;
2899 if (uuid)
2900 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN);
2901 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
2902 MAC2STR(ap->bssid), ap->type);
2903
2904 out:
2905 wpabuf_free(wps);
2906 }
2907
2908
2909 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
2910 struct wpa_scan_results *scan_res)
2911 {
2912 size_t i;
2913
2914 for (i = 0; i < scan_res->num; i++)
2915 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
2916
2917 wpas_wps_dump_ap_info(wpa_s);
2918 }
2919
2920
2921 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2922 {
2923 struct wps_ap_info *ap;
2924
2925 wpa_s->after_wps = 0;
2926
2927 if (!wpa_s->wps_ap_iter)
2928 return;
2929 ap = wpas_wps_get_ap_info(wpa_s, bssid);
2930 if (ap == NULL)
2931 return;
2932 ap->tries++;
2933 os_get_reltime(&ap->last_attempt);
2934 }
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