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