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WPS: Preparations for allowing SSID filtering for provisioning step
[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 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
43 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
44
45
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
55 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
56 {
57 #ifdef CONFIG_P2P
58 if (wpas_p2p_wps_eapol_cb(wpa_s) > 0)
59 return 1;
60 #endif /* CONFIG_P2P */
61
62 if (!wpa_s->wps_success &&
63 wpa_s->current_ssid &&
64 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
65 const u8 *bssid = wpa_s->bssid;
66 if (is_zero_ether_addr(bssid))
67 bssid = wpa_s->pending_bssid;
68
69 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
70 " did not succeed - continue trying to find "
71 "suitable AP", MAC2STR(bssid));
72 wpa_blacklist_add(wpa_s, bssid);
73
74 wpa_supplicant_deauthenticate(wpa_s,
75 WLAN_REASON_DEAUTH_LEAVING);
76 wpa_s->reassociate = 1;
77 wpa_supplicant_req_scan(wpa_s,
78 wpa_s->blacklist_cleared ? 5 : 0, 0);
79 wpa_s->blacklist_cleared = 0;
80 return 1;
81 }
82
83 wpas_wps_clear_ap_info(wpa_s);
84 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
85 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
86 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
87
88 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
89 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
90 int disabled = wpa_s->current_ssid->disabled;
91 unsigned int freq = wpa_s->assoc_freq;
92 struct wpa_bss *bss;
93 struct wpa_ssid *ssid = NULL;
94 int use_fast_assoc = 0;
95
96 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
97 "try to associate with the received credential "
98 "(freq=%u)", freq);
99 wpa_supplicant_deauthenticate(wpa_s,
100 WLAN_REASON_DEAUTH_LEAVING);
101 if (disabled) {
102 wpa_printf(MSG_DEBUG, "WPS: Current network is "
103 "disabled - wait for user to enable");
104 return 1;
105 }
106 wpa_s->after_wps = 5;
107 wpa_s->wps_freq = freq;
108 wpa_s->normal_scans = 0;
109 wpa_s->reassociate = 1;
110
111 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association "
112 "without a new scan can be used");
113 bss = wpa_supplicant_pick_network(wpa_s, &ssid);
114 if (bss) {
115 struct wpabuf *wps;
116 struct wps_parse_attr attr;
117
118 wps = wpa_bss_get_vendor_ie_multi(bss,
119 WPS_IE_VENDOR_TYPE);
120 if (wps && wps_parse_msg(wps, &attr) == 0 &&
121 attr.wps_state &&
122 *attr.wps_state == WPS_STATE_CONFIGURED)
123 use_fast_assoc = 1;
124 wpabuf_free(wps);
125 }
126
127 if (!use_fast_assoc ||
128 wpa_supplicant_fast_associate(wpa_s) != 1)
129 wpa_supplicant_req_scan(wpa_s, 0, 0);
130 return 1;
131 }
132
133 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
134 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
135 "for external credential processing");
136 wpas_clear_wps(wpa_s);
137 wpa_supplicant_deauthenticate(wpa_s,
138 WLAN_REASON_DEAUTH_LEAVING);
139 return 1;
140 }
141
142 return 0;
143 }
144
145
146 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
147 struct wpa_ssid *ssid,
148 const struct wps_credential *cred)
149 {
150 struct wpa_driver_capa capa;
151 struct wpa_bss *bss;
152 const u8 *ie;
153 struct wpa_ie_data adv;
154 int wpa2 = 0, ccmp = 0;
155
156 /*
157 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
158 * case they are configured for mixed mode operation (WPA+WPA2 and
159 * TKIP+CCMP). Try to use scan results to figure out whether the AP
160 * actually supports stronger security and select that if the client
161 * has support for it, too.
162 */
163
164 if (wpa_drv_get_capa(wpa_s, &capa))
165 return; /* Unknown what driver supports */
166
167 if (ssid->ssid == NULL)
168 return;
169 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
170 if (bss == NULL) {
171 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
172 "table - use credential as-is");
173 return;
174 }
175
176 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
177
178 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
179 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
180 wpa2 = 1;
181 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
182 ccmp = 1;
183 } else {
184 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
185 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
186 adv.pairwise_cipher & WPA_CIPHER_CCMP)
187 ccmp = 1;
188 }
189
190 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
191 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
192 /*
193 * TODO: This could be the initial AP configuration and the
194 * Beacon contents could change shortly. Should request a new
195 * scan and delay addition of the network until the updated
196 * scan results are available.
197 */
198 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
199 "support - use credential as-is");
200 return;
201 }
202
203 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
204 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
205 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
206 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
207 "based on scan results");
208 if (wpa_s->conf->ap_scan == 1)
209 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
210 else
211 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
212 }
213
214 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
215 (ssid->proto & WPA_PROTO_WPA) &&
216 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
217 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
218 "based on scan results");
219 if (wpa_s->conf->ap_scan == 1)
220 ssid->proto |= WPA_PROTO_RSN;
221 else
222 ssid->proto = WPA_PROTO_RSN;
223 }
224 }
225
226
227 static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s,
228 struct wpa_ssid *new_ssid)
229 {
230 struct wpa_ssid *ssid, *next;
231
232 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid;
233 ssid = next, next = ssid ? ssid->next : NULL) {
234 /*
235 * new_ssid has already been added to the list in
236 * wpas_wps_add_network(), so skip it.
237 */
238 if (ssid == new_ssid)
239 continue;
240
241 if (ssid->bssid_set || new_ssid->bssid_set) {
242 if (ssid->bssid_set != new_ssid->bssid_set)
243 continue;
244 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) !=
245 0)
246 continue;
247 }
248
249 /* compare SSID */
250 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len)
251 continue;
252
253 if (ssid->ssid && new_ssid->ssid) {
254 if (os_memcmp(ssid->ssid, new_ssid->ssid,
255 ssid->ssid_len) != 0)
256 continue;
257 } else if (ssid->ssid || new_ssid->ssid)
258 continue;
259
260 /* compare security parameters */
261 if (ssid->auth_alg != new_ssid->auth_alg ||
262 ssid->key_mgmt != new_ssid->key_mgmt ||
263 ssid->proto != new_ssid->proto ||
264 ssid->pairwise_cipher != new_ssid->pairwise_cipher ||
265 ssid->group_cipher != new_ssid->group_cipher)
266 continue;
267
268 /* Remove the duplicated older network entry. */
269 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id);
270 wpas_notify_network_removed(wpa_s, ssid);
271 wpa_config_remove_network(wpa_s->conf, ssid->id);
272 }
273 }
274
275
276 static int wpa_supplicant_wps_cred(void *ctx,
277 const struct wps_credential *cred)
278 {
279 struct wpa_supplicant *wpa_s = ctx;
280 struct wpa_ssid *ssid = wpa_s->current_ssid;
281 u8 key_idx = 0;
282 u16 auth_type;
283 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
284 int registrar = 0;
285 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
286
287 if ((wpa_s->conf->wps_cred_processing == 1 ||
288 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
289 size_t blen = cred->cred_attr_len * 2 + 1;
290 char *buf = os_malloc(blen);
291 if (buf) {
292 wpa_snprintf_hex(buf, blen,
293 cred->cred_attr, cred->cred_attr_len);
294 wpa_msg(wpa_s, MSG_INFO, "%s%s",
295 WPS_EVENT_CRED_RECEIVED, buf);
296 os_free(buf);
297 }
298
299 wpas_notify_wps_credential(wpa_s, cred);
300 } else
301 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
302
303 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
304 cred->cred_attr, cred->cred_attr_len);
305
306 if (wpa_s->conf->wps_cred_processing == 1)
307 return 0;
308
309 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
310 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
311 cred->auth_type);
312 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
313 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
314 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
315 cred->key, cred->key_len);
316 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
317 MAC2STR(cred->mac_addr));
318
319 auth_type = cred->auth_type;
320 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
321 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
322 "auth_type into WPA2PSK");
323 auth_type = WPS_AUTH_WPA2PSK;
324 }
325
326 if (auth_type != WPS_AUTH_OPEN &&
327 auth_type != WPS_AUTH_SHARED &&
328 auth_type != WPS_AUTH_WPAPSK &&
329 auth_type != WPS_AUTH_WPA2PSK) {
330 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
331 "unsupported authentication type 0x%x",
332 auth_type);
333 return 0;
334 }
335
336 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
337 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
338 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
339 "invalid Network Key length %lu",
340 (unsigned long) cred->key_len);
341 return -1;
342 }
343 }
344
345 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
346 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
347 "on the received credential");
348 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
349 if (ssid->eap.identity &&
350 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
351 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
352 WSC_ID_REGISTRAR_LEN) == 0)
353 registrar = 1;
354 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
355 os_free(ssid->eap.identity);
356 ssid->eap.identity = NULL;
357 ssid->eap.identity_len = 0;
358 os_free(ssid->eap.phase1);
359 ssid->eap.phase1 = NULL;
360 os_free(ssid->eap.eap_methods);
361 ssid->eap.eap_methods = NULL;
362 if (!ssid->p2p_group) {
363 ssid->temporary = 0;
364 ssid->bssid_set = 0;
365 }
366 ssid->disabled_until.sec = 0;
367 ssid->disabled_until.usec = 0;
368 ssid->auth_failures = 0;
369 } else {
370 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
371 "received credential");
372 ssid = wpa_config_add_network(wpa_s->conf);
373 if (ssid == NULL)
374 return -1;
375 wpas_notify_network_added(wpa_s, ssid);
376 }
377
378 wpa_config_set_network_defaults(ssid);
379
380 os_free(ssid->ssid);
381 ssid->ssid = os_malloc(cred->ssid_len);
382 if (ssid->ssid) {
383 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
384 ssid->ssid_len = cred->ssid_len;
385 }
386
387 switch (cred->encr_type) {
388 case WPS_ENCR_NONE:
389 break;
390 case WPS_ENCR_WEP:
391 if (cred->key_len <= 0)
392 break;
393 if (cred->key_len != 5 && cred->key_len != 13 &&
394 cred->key_len != 10 && cred->key_len != 26) {
395 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
396 "%lu", (unsigned long) cred->key_len);
397 return -1;
398 }
399 if (cred->key_idx > NUM_WEP_KEYS) {
400 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
401 cred->key_idx);
402 return -1;
403 }
404 if (cred->key_idx)
405 key_idx = cred->key_idx - 1;
406 if (cred->key_len == 10 || cred->key_len == 26) {
407 if (hexstr2bin((char *) cred->key,
408 ssid->wep_key[key_idx],
409 cred->key_len / 2) < 0) {
410 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
411 "%d", key_idx);
412 return -1;
413 }
414 ssid->wep_key_len[key_idx] = cred->key_len / 2;
415 } else {
416 os_memcpy(ssid->wep_key[key_idx], cred->key,
417 cred->key_len);
418 ssid->wep_key_len[key_idx] = cred->key_len;
419 }
420 ssid->wep_tx_keyidx = key_idx;
421 break;
422 case WPS_ENCR_TKIP:
423 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
424 break;
425 case WPS_ENCR_AES:
426 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
427 break;
428 }
429
430 switch (auth_type) {
431 case WPS_AUTH_OPEN:
432 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
433 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
434 ssid->proto = 0;
435 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
436 if (registrar) {
437 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
438 "id=%d - Credentials for an open "
439 "network disabled by default - use "
440 "'select_network %d' to enable",
441 ssid->id, ssid->id);
442 ssid->disabled = 1;
443 }
444 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
445 break;
446 case WPS_AUTH_SHARED:
447 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
448 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
449 ssid->proto = 0;
450 break;
451 case WPS_AUTH_WPAPSK:
452 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
453 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
454 ssid->proto = WPA_PROTO_WPA;
455 break;
456 case WPS_AUTH_WPA2PSK:
457 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
458 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
459 ssid->proto = WPA_PROTO_RSN;
460 break;
461 }
462
463 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
464 if (cred->key_len == 2 * PMK_LEN) {
465 if (hexstr2bin((const char *) cred->key, ssid->psk,
466 PMK_LEN)) {
467 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
468 "Key");
469 return -1;
470 }
471 ssid->psk_set = 1;
472 ssid->export_keys = 1;
473 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
474 os_free(ssid->passphrase);
475 ssid->passphrase = os_malloc(cred->key_len + 1);
476 if (ssid->passphrase == NULL)
477 return -1;
478 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
479 ssid->passphrase[cred->key_len] = '\0';
480 wpa_config_update_psk(ssid);
481 ssid->export_keys = 1;
482 } else {
483 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
484 "length %lu",
485 (unsigned long) cred->key_len);
486 return -1;
487 }
488 }
489
490 wpas_wps_security_workaround(wpa_s, ssid, cred);
491
492 if (cred->ap_channel)
493 wpa_s->wps_ap_channel = cred->ap_channel;
494
495 wpas_wps_remove_dup_network(wpa_s, ssid);
496
497 #ifndef CONFIG_NO_CONFIG_WRITE
498 if (wpa_s->conf->update_config &&
499 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
500 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
501 return -1;
502 }
503 #endif /* CONFIG_NO_CONFIG_WRITE */
504
505 /*
506 * Optimize the post-WPS scan based on the channel used during
507 * the provisioning in case EAP-Failure is not received.
508 */
509 wpa_s->after_wps = 5;
510 wpa_s->wps_freq = wpa_s->assoc_freq;
511
512 return 0;
513 }
514
515
516 #ifdef CONFIG_P2P
517 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
518 {
519 struct wpa_supplicant *wpa_s = eloop_ctx;
520 wpas_p2p_notif_pbc_overlap(wpa_s);
521 }
522 #endif /* CONFIG_P2P */
523
524
525 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
526 struct wps_event_m2d *m2d)
527 {
528 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
529 "dev_password_id=%d config_error=%d",
530 m2d->dev_password_id, m2d->config_error);
531 wpas_notify_wps_event_m2d(wpa_s, m2d);
532 #ifdef CONFIG_P2P
533 if (wpa_s->parent && wpa_s->parent != wpa_s) {
534 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
535 "dev_password_id=%d config_error=%d",
536 m2d->dev_password_id, m2d->config_error);
537 }
538 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
539 /*
540 * Notify P2P from eloop timeout to avoid issues with the
541 * interface getting removed while processing a message.
542 */
543 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
544 NULL);
545 }
546 #endif /* CONFIG_P2P */
547 }
548
549
550 static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx)
551 {
552 struct wpa_supplicant *wpa_s = eloop_ctx;
553 wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout");
554 wpas_clear_wps(wpa_s);
555 }
556
557
558 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
559 struct wps_event_fail *fail)
560 {
561 if (fail->error_indication > 0 &&
562 fail->error_indication < NUM_WPS_EI_VALUES) {
563 wpa_msg(wpa_s, MSG_INFO,
564 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
565 fail->msg, fail->config_error, fail->error_indication,
566 wps_ei_str(fail->error_indication));
567 if (wpa_s->parent && wpa_s->parent != wpa_s)
568 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
569 "msg=%d config_error=%d reason=%d (%s)",
570 fail->msg, fail->config_error,
571 fail->error_indication,
572 wps_ei_str(fail->error_indication));
573 } else {
574 wpa_msg(wpa_s, MSG_INFO,
575 WPS_EVENT_FAIL "msg=%d config_error=%d",
576 fail->msg, fail->config_error);
577 if (wpa_s->parent && wpa_s->parent != wpa_s)
578 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
579 "msg=%d config_error=%d",
580 fail->msg, fail->config_error);
581 }
582
583 /*
584 * Need to allow WPS processing to complete, e.g., by sending WSC_NACK.
585 */
586 wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network");
587 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
588 eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL);
589
590 wpas_notify_wps_event_fail(wpa_s, fail);
591 #ifdef CONFIG_P2P
592 wpas_p2p_wps_failed(wpa_s, fail);
593 #endif /* CONFIG_P2P */
594 }
595
596
597 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
598
599 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
600 {
601 struct wpa_ssid *ssid;
602 int changed = 0;
603
604 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
605
606 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
607 if (ssid->disabled_for_connect && ssid->disabled) {
608 ssid->disabled_for_connect = 0;
609 ssid->disabled = 0;
610 wpas_notify_network_enabled_changed(wpa_s, ssid);
611 changed++;
612 }
613 }
614
615 if (changed) {
616 #ifndef CONFIG_NO_CONFIG_WRITE
617 if (wpa_s->conf->update_config &&
618 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
619 wpa_printf(MSG_DEBUG, "WPS: Failed to update "
620 "configuration");
621 }
622 #endif /* CONFIG_NO_CONFIG_WRITE */
623 }
624 }
625
626
627 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
628 {
629 struct wpa_supplicant *wpa_s = eloop_ctx;
630 /* Enable the networks disabled during wpas_wps_reassoc */
631 wpas_wps_reenable_networks(wpa_s);
632 }
633
634
635 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
636 {
637 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
638 wpa_s->wps_success = 1;
639 wpas_notify_wps_event_success(wpa_s);
640 if (wpa_s->current_ssid)
641 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1);
642 wpa_s->extra_blacklist_count = 0;
643
644 /*
645 * Enable the networks disabled during wpas_wps_reassoc after 10
646 * seconds. The 10 seconds timer is to allow the data connection to be
647 * formed before allowing other networks to be selected.
648 */
649 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
650 NULL);
651
652 #ifdef CONFIG_P2P
653 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
654 #endif /* CONFIG_P2P */
655 }
656
657
658 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
659 struct wps_event_er_ap *ap)
660 {
661 char uuid_str[100];
662 char dev_type[WPS_DEV_TYPE_BUFSIZE];
663
664 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
665 if (ap->pri_dev_type)
666 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
667 sizeof(dev_type));
668 else
669 dev_type[0] = '\0';
670
671 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
672 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
673 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
674 ap->friendly_name ? ap->friendly_name : "",
675 ap->manufacturer ? ap->manufacturer : "",
676 ap->model_description ? ap->model_description : "",
677 ap->model_name ? ap->model_name : "",
678 ap->manufacturer_url ? ap->manufacturer_url : "",
679 ap->model_url ? ap->model_url : "");
680 }
681
682
683 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
684 struct wps_event_er_ap *ap)
685 {
686 char uuid_str[100];
687 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
688 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
689 }
690
691
692 static void wpa_supplicant_wps_event_er_enrollee_add(
693 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
694 {
695 char uuid_str[100];
696 char dev_type[WPS_DEV_TYPE_BUFSIZE];
697
698 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
699 if (enrollee->pri_dev_type)
700 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
701 sizeof(dev_type));
702 else
703 dev_type[0] = '\0';
704
705 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
706 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
707 "|%s|%s|%s|%s|%s|",
708 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
709 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
710 enrollee->dev_name ? enrollee->dev_name : "",
711 enrollee->manufacturer ? enrollee->manufacturer : "",
712 enrollee->model_name ? enrollee->model_name : "",
713 enrollee->model_number ? enrollee->model_number : "",
714 enrollee->serial_number ? enrollee->serial_number : "");
715 }
716
717
718 static void wpa_supplicant_wps_event_er_enrollee_remove(
719 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
720 {
721 char uuid_str[100];
722 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
723 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
724 uuid_str, MAC2STR(enrollee->mac_addr));
725 }
726
727
728 static void wpa_supplicant_wps_event_er_ap_settings(
729 struct wpa_supplicant *wpa_s,
730 struct wps_event_er_ap_settings *ap_settings)
731 {
732 char uuid_str[100];
733 char key_str[65];
734 const struct wps_credential *cred = ap_settings->cred;
735
736 key_str[0] = '\0';
737 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
738 if (cred->key_len >= 8 && cred->key_len <= 64) {
739 os_memcpy(key_str, cred->key, cred->key_len);
740 key_str[cred->key_len] = '\0';
741 }
742 }
743
744 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
745 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
746 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
747 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
748 "key=%s",
749 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
750 cred->auth_type, cred->encr_type, key_str);
751 }
752
753
754 static void wpa_supplicant_wps_event_er_set_sel_reg(
755 struct wpa_supplicant *wpa_s,
756 struct wps_event_er_set_selected_registrar *ev)
757 {
758 char uuid_str[100];
759
760 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
761 switch (ev->state) {
762 case WPS_ER_SET_SEL_REG_START:
763 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
764 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
765 "sel_reg_config_methods=0x%x",
766 uuid_str, ev->sel_reg, ev->dev_passwd_id,
767 ev->sel_reg_config_methods);
768 break;
769 case WPS_ER_SET_SEL_REG_DONE:
770 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
771 "uuid=%s state=DONE", uuid_str);
772 break;
773 case WPS_ER_SET_SEL_REG_FAILED:
774 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
775 "uuid=%s state=FAILED", uuid_str);
776 break;
777 }
778 }
779
780
781 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
782 union wps_event_data *data)
783 {
784 struct wpa_supplicant *wpa_s = ctx;
785 switch (event) {
786 case WPS_EV_M2D:
787 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
788 break;
789 case WPS_EV_FAIL:
790 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
791 break;
792 case WPS_EV_SUCCESS:
793 wpa_supplicant_wps_event_success(wpa_s);
794 break;
795 case WPS_EV_PWD_AUTH_FAIL:
796 #ifdef CONFIG_AP
797 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
798 wpa_supplicant_ap_pwd_auth_fail(wpa_s);
799 #endif /* CONFIG_AP */
800 break;
801 case WPS_EV_PBC_OVERLAP:
802 break;
803 case WPS_EV_PBC_TIMEOUT:
804 break;
805 case WPS_EV_PBC_ACTIVE:
806 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE);
807 break;
808 case WPS_EV_PBC_DISABLE:
809 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE);
810 break;
811 case WPS_EV_ER_AP_ADD:
812 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
813 break;
814 case WPS_EV_ER_AP_REMOVE:
815 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
816 break;
817 case WPS_EV_ER_ENROLLEE_ADD:
818 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
819 &data->enrollee);
820 break;
821 case WPS_EV_ER_ENROLLEE_REMOVE:
822 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
823 &data->enrollee);
824 break;
825 case WPS_EV_ER_AP_SETTINGS:
826 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
827 &data->ap_settings);
828 break;
829 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
830 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
831 &data->set_sel_reg);
832 break;
833 case WPS_EV_AP_PIN_SUCCESS:
834 break;
835 }
836 }
837
838
839 static int wpa_supplicant_wps_rf_band(void *ctx)
840 {
841 struct wpa_supplicant *wpa_s = ctx;
842
843 if (!wpa_s->current_ssid || !wpa_s->assoc_freq)
844 return 0;
845
846 return (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ;
847 }
848
849
850 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
851 {
852 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
853 eap_is_wps_pin_enrollee(&ssid->eap))
854 return WPS_REQ_ENROLLEE;
855 else
856 return WPS_REQ_REGISTRAR;
857 }
858
859
860 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
861 {
862 int id;
863 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
864
865 wpa_s->after_wps = 0;
866 wpa_s->known_wps_freq = 0;
867
868 prev_current = wpa_s->current_ssid;
869
870 /* Enable the networks disabled during wpas_wps_reassoc */
871 wpas_wps_reenable_networks(wpa_s);
872
873 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
874 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
875
876 /* Remove any existing WPS network from configuration */
877 ssid = wpa_s->conf->ssid;
878 while (ssid) {
879 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
880 if (ssid == wpa_s->current_ssid) {
881 wpa_supplicant_deauthenticate(
882 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
883 }
884 id = ssid->id;
885 remove_ssid = ssid;
886 } else
887 id = -1;
888 ssid = ssid->next;
889 if (id >= 0) {
890 if (prev_current == remove_ssid) {
891 wpa_sm_set_config(wpa_s->wpa, NULL);
892 eapol_sm_notify_config(wpa_s->eapol, NULL,
893 NULL);
894 }
895 wpas_notify_network_removed(wpa_s, remove_ssid);
896 wpa_config_remove_network(wpa_s->conf, id);
897 }
898 }
899
900 wpas_wps_clear_ap_info(wpa_s);
901 }
902
903
904 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
905 {
906 struct wpa_supplicant *wpa_s = eloop_ctx;
907 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
908 "out");
909 wpas_clear_wps(wpa_s);
910 }
911
912
913 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
914 int registrar, const u8 *bssid)
915 {
916 struct wpa_ssid *ssid;
917
918 ssid = wpa_config_add_network(wpa_s->conf);
919 if (ssid == NULL)
920 return NULL;
921 wpas_notify_network_added(wpa_s, ssid);
922 wpa_config_set_network_defaults(ssid);
923 ssid->temporary = 1;
924 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
925 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
926 wpa_config_set(ssid, "identity", registrar ?
927 "\"" WSC_ID_REGISTRAR "\"" :
928 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
929 wpas_notify_network_removed(wpa_s, ssid);
930 wpa_config_remove_network(wpa_s->conf, ssid->id);
931 return NULL;
932 }
933
934 if (bssid) {
935 #ifndef CONFIG_P2P
936 struct wpa_bss *bss;
937 int count = 0;
938 #endif /* CONFIG_P2P */
939
940 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
941 ssid->bssid_set = 1;
942
943 /*
944 * Note: With P2P, the SSID may change at the time the WPS
945 * provisioning is started, so better not filter the AP based
946 * on the current SSID in the scan results.
947 */
948 #ifndef CONFIG_P2P
949 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
950 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
951 continue;
952
953 os_free(ssid->ssid);
954 ssid->ssid = os_malloc(bss->ssid_len);
955 if (ssid->ssid == NULL)
956 break;
957 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
958 ssid->ssid_len = bss->ssid_len;
959 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
960 "scan results",
961 ssid->ssid, ssid->ssid_len);
962 count++;
963 }
964
965 if (count > 1) {
966 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
967 "for the AP; use wildcard");
968 os_free(ssid->ssid);
969 ssid->ssid = NULL;
970 ssid->ssid_len = 0;
971 }
972 #endif /* CONFIG_P2P */
973 }
974
975 return ssid;
976 }
977
978
979 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s,
980 struct wpa_ssid *selected)
981 {
982 struct wpa_ssid *ssid;
983
984 if (wpa_s->current_ssid)
985 wpa_supplicant_deauthenticate(
986 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
987
988 /* Mark all other networks disabled and trigger reassociation */
989 ssid = wpa_s->conf->ssid;
990 while (ssid) {
991 int was_disabled = ssid->disabled;
992 ssid->disabled_for_connect = 0;
993 /*
994 * In case the network object corresponds to a persistent group
995 * then do not send out network disabled signal. In addition,
996 * do not change disabled status of persistent network objects
997 * from 2 to 1 should we connect to another network.
998 */
999 if (was_disabled != 2) {
1000 ssid->disabled = ssid != selected;
1001 if (was_disabled != ssid->disabled) {
1002 if (ssid->disabled)
1003 ssid->disabled_for_connect = 1;
1004 wpas_notify_network_enabled_changed(wpa_s,
1005 ssid);
1006 }
1007 }
1008 ssid = ssid->next;
1009 }
1010 }
1011
1012
1013 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
1014 struct wpa_ssid *selected, const u8 *bssid)
1015 {
1016 struct wpa_bss *bss;
1017
1018 wpa_s->after_wps = 0;
1019 wpa_s->known_wps_freq = 0;
1020 if (bssid) {
1021 bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1022 if (bss && bss->freq > 0) {
1023 wpa_s->known_wps_freq = 1;
1024 wpa_s->wps_freq = bss->freq;
1025 }
1026 }
1027
1028 wpas_wps_temp_disable(wpa_s, selected);
1029
1030 wpa_s->disconnected = 0;
1031 wpa_s->reassociate = 1;
1032 wpa_s->scan_runs = 0;
1033 wpa_s->normal_scans = 0;
1034 wpa_s->wps_success = 0;
1035 wpa_s->blacklist_cleared = 0;
1036
1037 wpa_supplicant_cancel_sched_scan(wpa_s);
1038 wpa_supplicant_req_scan(wpa_s, 0, 0);
1039 }
1040
1041
1042 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
1043 int p2p_group)
1044 {
1045 struct wpa_ssid *ssid;
1046 wpas_clear_wps(wpa_s);
1047 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
1048 if (ssid == NULL)
1049 return -1;
1050 ssid->temporary = 1;
1051 ssid->p2p_group = p2p_group;
1052 #ifdef CONFIG_P2P
1053 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1054 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1055 if (ssid->ssid) {
1056 ssid->ssid_len = wpa_s->go_params->ssid_len;
1057 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1058 ssid->ssid_len);
1059 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1060 "SSID", ssid->ssid, ssid->ssid_len);
1061 }
1062 }
1063 #endif /* CONFIG_P2P */
1064 if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0)
1065 return -1;
1066 if (wpa_s->wps_fragment_size)
1067 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1068 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1069 wpa_s, NULL);
1070 wpas_wps_reassoc(wpa_s, ssid, bssid);
1071 return 0;
1072 }
1073
1074
1075 static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s, const u8 *bssid,
1076 const char *pin, int p2p_group, u16 dev_pw_id,
1077 const u8 *peer_pubkey_hash,
1078 const u8 *ssid_val, size_t ssid_len)
1079 {
1080 struct wpa_ssid *ssid;
1081 char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN];
1082 unsigned int rpin = 0;
1083 char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10];
1084
1085 wpas_clear_wps(wpa_s);
1086 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
1087 if (ssid == NULL) {
1088 wpa_printf(MSG_DEBUG, "WPS: Could not add network");
1089 return -1;
1090 }
1091 ssid->temporary = 1;
1092 ssid->p2p_group = p2p_group;
1093 if (ssid_val) {
1094 ssid->ssid = os_malloc(ssid_len);
1095 if (ssid->ssid) {
1096 os_memcpy(ssid->ssid, ssid_val, ssid_len);
1097 ssid->ssid_len = ssid_len;
1098 }
1099 }
1100 if (peer_pubkey_hash) {
1101 os_memcpy(hash, " pkhash=", 8);
1102 wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8,
1103 peer_pubkey_hash,
1104 WPS_OOB_PUBKEY_HASH_LEN);
1105 } else {
1106 hash[0] = '\0';
1107 }
1108 #ifdef CONFIG_P2P
1109 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1110 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1111 if (ssid->ssid) {
1112 ssid->ssid_len = wpa_s->go_params->ssid_len;
1113 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1114 ssid->ssid_len);
1115 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1116 "SSID", ssid->ssid, ssid->ssid_len);
1117 }
1118 }
1119 #endif /* CONFIG_P2P */
1120 if (pin)
1121 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"",
1122 pin, dev_pw_id, hash);
1123 else {
1124 rpin = wps_generate_pin();
1125 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"",
1126 rpin, dev_pw_id, hash);
1127 }
1128 if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1129 return -1;
1130 if (wpa_s->wps_fragment_size)
1131 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1132 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1133 wpa_s, NULL);
1134 wpa_s->wps_ap_iter = 1;
1135 wpas_wps_reassoc(wpa_s, ssid, bssid);
1136 return rpin;
1137 }
1138
1139
1140 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
1141 const char *pin, int p2p_group, u16 dev_pw_id)
1142 {
1143 return wpas_wps_start_dev_pw(wpa_s, bssid, pin, p2p_group, dev_pw_id,
1144 NULL, NULL, 0);
1145 }
1146
1147
1148 /* Cancel the wps pbc/pin requests */
1149 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
1150 {
1151 #ifdef CONFIG_AP
1152 if (wpa_s->ap_iface) {
1153 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
1154 return wpa_supplicant_ap_wps_cancel(wpa_s);
1155 }
1156 #endif /* CONFIG_AP */
1157
1158 if (wpa_s->wpa_state == WPA_SCANNING ||
1159 wpa_s->wpa_state == WPA_DISCONNECTED) {
1160 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
1161 wpa_supplicant_cancel_scan(wpa_s);
1162 wpas_clear_wps(wpa_s);
1163 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
1164 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
1165 "deauthenticate");
1166 wpa_supplicant_deauthenticate(wpa_s,
1167 WLAN_REASON_DEAUTH_LEAVING);
1168 wpas_clear_wps(wpa_s);
1169 } else {
1170 wpas_wps_reenable_networks(wpa_s);
1171 wpas_wps_clear_ap_info(wpa_s);
1172 if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) >
1173 0)
1174 wpas_clear_wps(wpa_s);
1175 }
1176
1177 wpa_s->after_wps = 0;
1178
1179 return 0;
1180 }
1181
1182
1183 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
1184 const char *pin, struct wps_new_ap_settings *settings)
1185 {
1186 struct wpa_ssid *ssid;
1187 char val[200];
1188 char *pos, *end;
1189 int res;
1190
1191 if (!pin)
1192 return -1;
1193 wpas_clear_wps(wpa_s);
1194 ssid = wpas_wps_add_network(wpa_s, 1, bssid);
1195 if (ssid == NULL)
1196 return -1;
1197 ssid->temporary = 1;
1198 pos = val;
1199 end = pos + sizeof(val);
1200 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1201 if (res < 0 || res >= end - pos)
1202 return -1;
1203 pos += res;
1204 if (settings) {
1205 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1206 "new_encr=%s new_key=%s",
1207 settings->ssid_hex, settings->auth,
1208 settings->encr, settings->key_hex);
1209 if (res < 0 || res >= end - pos)
1210 return -1;
1211 pos += res;
1212 }
1213 res = os_snprintf(pos, end - pos, "\"");
1214 if (res < 0 || res >= end - pos)
1215 return -1;
1216 if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1217 return -1;
1218 if (wpa_s->wps_fragment_size)
1219 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1220 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1221 wpa_s, NULL);
1222 wpas_wps_reassoc(wpa_s, ssid, bssid);
1223 return 0;
1224 }
1225
1226
1227 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr,
1228 const u8 *p2p_dev_addr, const u8 *psk,
1229 size_t psk_len)
1230 {
1231 if (is_zero_ether_addr(p2p_dev_addr)) {
1232 wpa_printf(MSG_DEBUG,
1233 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
1234 MAC2STR(mac_addr));
1235 } else {
1236 wpa_printf(MSG_DEBUG,
1237 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR
1238 " P2P Device Addr " MACSTR,
1239 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
1240 }
1241 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1242
1243 /* TODO */
1244
1245 return 0;
1246 }
1247
1248
1249 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1250 const struct wps_device_data *dev)
1251 {
1252 char uuid[40], txt[400];
1253 int len;
1254 char devtype[WPS_DEV_TYPE_BUFSIZE];
1255 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1256 return;
1257 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1258 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1259 " [%s|%s|%s|%s|%s|%s]",
1260 uuid, MAC2STR(dev->mac_addr), dev->device_name,
1261 dev->manufacturer, dev->model_name,
1262 dev->model_number, dev->serial_number,
1263 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1264 sizeof(devtype)));
1265 if (len > 0 && len < (int) sizeof(txt))
1266 wpa_printf(MSG_INFO, "%s", txt);
1267 }
1268
1269
1270 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1271 u16 sel_reg_config_methods)
1272 {
1273 #ifdef CONFIG_WPS_ER
1274 struct wpa_supplicant *wpa_s = ctx;
1275
1276 if (wpa_s->wps_er == NULL)
1277 return;
1278 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1279 "dev_password_id=%u sel_reg_config_methods=0x%x",
1280 sel_reg, dev_passwd_id, sel_reg_config_methods);
1281 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1282 sel_reg_config_methods);
1283 #endif /* CONFIG_WPS_ER */
1284 }
1285
1286
1287 static u16 wps_fix_config_methods(u16 config_methods)
1288 {
1289 #ifdef CONFIG_WPS2
1290 if ((config_methods &
1291 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1292 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1293 wpa_printf(MSG_INFO, "WPS: Converting display to "
1294 "virtual_display for WPS 2.0 compliance");
1295 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1296 }
1297 if ((config_methods &
1298 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1299 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1300 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1301 "virtual_push_button for WPS 2.0 compliance");
1302 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1303 }
1304 #endif /* CONFIG_WPS2 */
1305
1306 return config_methods;
1307 }
1308
1309
1310 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1311 struct wps_context *wps)
1312 {
1313 char buf[50];
1314 const char *src;
1315
1316 if (is_nil_uuid(wpa_s->conf->uuid)) {
1317 struct wpa_supplicant *first;
1318 first = wpa_s->global->ifaces;
1319 while (first && first->next)
1320 first = first->next;
1321 if (first && first != wpa_s) {
1322 if (wps != wpa_s->global->ifaces->wps)
1323 os_memcpy(wps->uuid,
1324 wpa_s->global->ifaces->wps->uuid,
1325 WPS_UUID_LEN);
1326 src = "from the first interface";
1327 } else {
1328 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1329 src = "based on MAC address";
1330 }
1331 } else {
1332 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1333 src = "based on configuration";
1334 }
1335
1336 uuid_bin2str(wps->uuid, buf, sizeof(buf));
1337 wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf);
1338 }
1339
1340
1341 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1342 struct wps_context *wps)
1343 {
1344 wpabuf_free(wps->dev.vendor_ext_m1);
1345 wps->dev.vendor_ext_m1 = NULL;
1346
1347 if (wpa_s->conf->wps_vendor_ext_m1) {
1348 wps->dev.vendor_ext_m1 =
1349 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1350 if (!wps->dev.vendor_ext_m1) {
1351 wpa_printf(MSG_ERROR, "WPS: Cannot "
1352 "allocate memory for vendor_ext_m1");
1353 }
1354 }
1355 }
1356
1357
1358 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1359 {
1360 struct wps_context *wps;
1361 struct wps_registrar_config rcfg;
1362 struct hostapd_hw_modes *modes;
1363 u16 m;
1364
1365 wps = os_zalloc(sizeof(*wps));
1366 if (wps == NULL)
1367 return -1;
1368
1369 wps->cred_cb = wpa_supplicant_wps_cred;
1370 wps->event_cb = wpa_supplicant_wps_event;
1371 wps->rf_band_cb = wpa_supplicant_wps_rf_band;
1372 wps->cb_ctx = wpa_s;
1373
1374 wps->dev.device_name = wpa_s->conf->device_name;
1375 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1376 wps->dev.model_name = wpa_s->conf->model_name;
1377 wps->dev.model_number = wpa_s->conf->model_number;
1378 wps->dev.serial_number = wpa_s->conf->serial_number;
1379 wps->config_methods =
1380 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1381 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1382 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1383 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1384 "methods are not allowed at the same time");
1385 os_free(wps);
1386 return -1;
1387 }
1388 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1389 wps->dev.config_methods = wps->config_methods;
1390 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1391 WPS_DEV_TYPE_LEN);
1392
1393 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1394 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1395 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1396
1397 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1398
1399 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1400 modes = wpa_s->hw.modes;
1401 if (modes) {
1402 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1403 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1404 modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1405 wps->dev.rf_bands |= WPS_RF_24GHZ;
1406 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1407 wps->dev.rf_bands |= WPS_RF_50GHZ;
1408 }
1409 }
1410 if (wps->dev.rf_bands == 0) {
1411 /*
1412 * Default to claiming support for both bands if the driver
1413 * does not provide support for fetching supported bands.
1414 */
1415 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1416 }
1417 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1418 wpas_wps_set_uuid(wpa_s, wps);
1419
1420 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1421 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1422
1423 os_memset(&rcfg, 0, sizeof(rcfg));
1424 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1425 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1426 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1427 rcfg.cb_ctx = wpa_s;
1428
1429 wps->registrar = wps_registrar_init(wps, &rcfg);
1430 if (wps->registrar == NULL) {
1431 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1432 os_free(wps);
1433 return -1;
1434 }
1435
1436 wpa_s->wps = wps;
1437
1438 return 0;
1439 }
1440
1441
1442 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1443 {
1444 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1445 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
1446 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
1447 wpas_wps_clear_ap_info(wpa_s);
1448
1449 if (wpa_s->wps == NULL)
1450 return;
1451
1452 #ifdef CONFIG_WPS_ER
1453 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1454 wpa_s->wps_er = NULL;
1455 #endif /* CONFIG_WPS_ER */
1456
1457 wps_registrar_deinit(wpa_s->wps->registrar);
1458 wpabuf_free(wpa_s->wps->dh_pubkey);
1459 wpabuf_free(wpa_s->wps->dh_privkey);
1460 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
1461 os_free(wpa_s->wps->network_key);
1462 os_free(wpa_s->wps);
1463 wpa_s->wps = NULL;
1464 }
1465
1466
1467 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1468 struct wpa_ssid *ssid, struct wpa_bss *bss)
1469 {
1470 struct wpabuf *wps_ie;
1471
1472 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1473 return -1;
1474
1475 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1476 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1477 if (!wps_ie) {
1478 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1479 return 0;
1480 }
1481
1482 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1483 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1484 "without active PBC Registrar");
1485 wpabuf_free(wps_ie);
1486 return 0;
1487 }
1488
1489 /* TODO: overlap detection */
1490 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1491 "(Active PBC)");
1492 wpabuf_free(wps_ie);
1493 return 1;
1494 }
1495
1496 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1497 if (!wps_ie) {
1498 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1499 return 0;
1500 }
1501
1502 /*
1503 * Start with WPS APs that advertise our address as an
1504 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1505 * allow any WPS AP after couple of scans since some APs do not
1506 * set Selected Registrar attribute properly when using
1507 * external Registrar.
1508 */
1509 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1510 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1511 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1512 "without active PIN Registrar");
1513 wpabuf_free(wps_ie);
1514 return 0;
1515 }
1516 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1517 } else {
1518 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1519 "(Authorized MAC or Active PIN)");
1520 }
1521 wpabuf_free(wps_ie);
1522 return 1;
1523 }
1524
1525 if (wps_ie) {
1526 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1527 wpabuf_free(wps_ie);
1528 return 1;
1529 }
1530
1531 return -1;
1532 }
1533
1534
1535 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1536 struct wpa_ssid *ssid,
1537 struct wpa_bss *bss)
1538 {
1539 struct wpabuf *wps_ie = NULL;
1540 int ret = 0;
1541
1542 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1543 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1544 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1545 /* allow wildcard SSID for WPS PBC */
1546 ret = 1;
1547 }
1548 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1549 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1550 if (wps_ie &&
1551 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1552 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1553 /* allow wildcard SSID for WPS PIN */
1554 ret = 1;
1555 }
1556 }
1557
1558 if (!ret && ssid->bssid_set &&
1559 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1560 /* allow wildcard SSID due to hardcoded BSSID match */
1561 ret = 1;
1562 }
1563
1564 #ifdef CONFIG_WPS_STRICT
1565 if (wps_ie) {
1566 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1567 0, bss->bssid) < 0)
1568 ret = 0;
1569 if (bss->beacon_ie_len) {
1570 struct wpabuf *bcn_wps;
1571 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
1572 bss, WPS_IE_VENDOR_TYPE);
1573 if (bcn_wps == NULL) {
1574 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1575 "missing from AP Beacon");
1576 ret = 0;
1577 } else {
1578 if (wps_validate_beacon(wps_ie) < 0)
1579 ret = 0;
1580 wpabuf_free(bcn_wps);
1581 }
1582 }
1583 }
1584 #endif /* CONFIG_WPS_STRICT */
1585
1586 wpabuf_free(wps_ie);
1587
1588 return ret;
1589 }
1590
1591
1592 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1593 struct wpa_bss *selected, struct wpa_ssid *ssid)
1594 {
1595 const u8 *sel_uuid, *uuid;
1596 struct wpabuf *wps_ie;
1597 int ret = 0;
1598 struct wpa_bss *bss;
1599
1600 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1601 return 0;
1602
1603 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1604 "present in scan results; selected BSSID " MACSTR,
1605 MAC2STR(selected->bssid));
1606
1607 /* Make sure that only one AP is in active PBC mode */
1608 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1609 if (wps_ie) {
1610 sel_uuid = wps_get_uuid_e(wps_ie);
1611 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1612 sel_uuid, UUID_LEN);
1613 } else {
1614 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1615 "WPS IE?!");
1616 sel_uuid = NULL;
1617 }
1618
1619 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1620 struct wpabuf *ie;
1621 if (bss == selected)
1622 continue;
1623 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1624 if (!ie)
1625 continue;
1626 if (!wps_is_selected_pbc_registrar(ie)) {
1627 wpabuf_free(ie);
1628 continue;
1629 }
1630 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1631 MACSTR, MAC2STR(bss->bssid));
1632 uuid = wps_get_uuid_e(ie);
1633 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1634 uuid, UUID_LEN);
1635 if (sel_uuid == NULL || uuid == NULL ||
1636 os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1637 ret = 1; /* PBC overlap */
1638 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1639 MACSTR " and " MACSTR,
1640 MAC2STR(selected->bssid),
1641 MAC2STR(bss->bssid));
1642 wpabuf_free(ie);
1643 break;
1644 }
1645
1646 /* TODO: verify that this is reasonable dual-band situation */
1647
1648 wpabuf_free(ie);
1649 }
1650
1651 wpabuf_free(wps_ie);
1652
1653 return ret;
1654 }
1655
1656
1657 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1658 {
1659 struct wpa_bss *bss;
1660 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1661
1662 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1663 return;
1664
1665 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1666 struct wpabuf *ie;
1667 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1668 if (!ie)
1669 continue;
1670 if (wps_is_selected_pbc_registrar(ie))
1671 pbc++;
1672 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1673 auth++;
1674 else if (wps_is_selected_pin_registrar(ie))
1675 pin++;
1676 else
1677 wps++;
1678 wpabuf_free(ie);
1679 }
1680
1681 if (pbc)
1682 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1683 else if (auth)
1684 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1685 else if (pin)
1686 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1687 else if (wps)
1688 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1689 }
1690
1691
1692 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1693 {
1694 struct wpa_ssid *ssid;
1695
1696 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1697 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1698 return 1;
1699 }
1700
1701 return 0;
1702 }
1703
1704
1705 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1706 char *end)
1707 {
1708 struct wpabuf *wps_ie;
1709 int ret;
1710
1711 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1712 if (wps_ie == NULL)
1713 return 0;
1714
1715 ret = wps_attr_text(wps_ie, buf, end);
1716 wpabuf_free(wps_ie);
1717 return ret;
1718 }
1719
1720
1721 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1722 {
1723 #ifdef CONFIG_WPS_ER
1724 if (wpa_s->wps_er) {
1725 wps_er_refresh(wpa_s->wps_er);
1726 return 0;
1727 }
1728 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1729 if (wpa_s->wps_er == NULL)
1730 return -1;
1731 return 0;
1732 #else /* CONFIG_WPS_ER */
1733 return 0;
1734 #endif /* CONFIG_WPS_ER */
1735 }
1736
1737
1738 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1739 {
1740 #ifdef CONFIG_WPS_ER
1741 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1742 wpa_s->wps_er = NULL;
1743 #endif /* CONFIG_WPS_ER */
1744 return 0;
1745 }
1746
1747
1748 #ifdef CONFIG_WPS_ER
1749 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1750 const char *uuid, const char *pin)
1751 {
1752 u8 u[UUID_LEN];
1753 const u8 *use_uuid = NULL;
1754 u8 addr_buf[ETH_ALEN];
1755
1756 if (os_strcmp(uuid, "any") == 0) {
1757 } else if (uuid_str2bin(uuid, u) == 0) {
1758 use_uuid = u;
1759 } else if (hwaddr_aton(uuid, addr_buf) == 0) {
1760 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf);
1761 if (use_uuid == NULL)
1762 return -1;
1763 } else
1764 return -1;
1765 return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1766 use_uuid,
1767 (const u8 *) pin, os_strlen(pin), 300);
1768 }
1769
1770
1771 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1772 {
1773 u8 u[UUID_LEN], *use_uuid = NULL;
1774 u8 addr[ETH_ALEN], *use_addr = NULL;
1775
1776 if (uuid_str2bin(uuid, u) == 0)
1777 use_uuid = u;
1778 else if (hwaddr_aton(uuid, addr) == 0)
1779 use_addr = addr;
1780 else
1781 return -1;
1782 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr);
1783 }
1784
1785
1786 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1787 const char *pin)
1788 {
1789 u8 u[UUID_LEN], *use_uuid = NULL;
1790 u8 addr[ETH_ALEN], *use_addr = NULL;
1791
1792 if (uuid_str2bin(uuid, u) == 0)
1793 use_uuid = u;
1794 else if (hwaddr_aton(uuid, addr) == 0)
1795 use_addr = addr;
1796 else
1797 return -1;
1798
1799 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin,
1800 os_strlen(pin));
1801 }
1802
1803
1804 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid,
1805 struct wps_credential *cred)
1806 {
1807 os_memset(cred, 0, sizeof(*cred));
1808 if (ssid->ssid_len > 32)
1809 return -1;
1810 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len);
1811 cred->ssid_len = ssid->ssid_len;
1812 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1813 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1814 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1815 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1816 cred->encr_type = WPS_ENCR_AES;
1817 else
1818 cred->encr_type = WPS_ENCR_TKIP;
1819 if (ssid->passphrase) {
1820 cred->key_len = os_strlen(ssid->passphrase);
1821 if (cred->key_len >= 64)
1822 return -1;
1823 os_memcpy(cred->key, ssid->passphrase, cred->key_len);
1824 } else if (ssid->psk_set) {
1825 cred->key_len = 32;
1826 os_memcpy(cred->key, ssid->psk, 32);
1827 } else
1828 return -1;
1829 } else {
1830 cred->auth_type = WPS_AUTH_OPEN;
1831 cred->encr_type = WPS_ENCR_NONE;
1832 }
1833
1834 return 0;
1835 }
1836
1837
1838 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1839 int id)
1840 {
1841 u8 u[UUID_LEN], *use_uuid = NULL;
1842 u8 addr[ETH_ALEN], *use_addr = NULL;
1843 struct wpa_ssid *ssid;
1844 struct wps_credential cred;
1845
1846 if (uuid_str2bin(uuid, u) == 0)
1847 use_uuid = u;
1848 else if (hwaddr_aton(uuid, addr) == 0)
1849 use_addr = addr;
1850 else
1851 return -1;
1852 ssid = wpa_config_get_network(wpa_s->conf, id);
1853 if (ssid == NULL || ssid->ssid == NULL)
1854 return -1;
1855
1856 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
1857 return -1;
1858 return wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred);
1859 }
1860
1861
1862 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1863 const char *pin, struct wps_new_ap_settings *settings)
1864 {
1865 u8 u[UUID_LEN], *use_uuid = NULL;
1866 u8 addr[ETH_ALEN], *use_addr = NULL;
1867 struct wps_credential cred;
1868 size_t len;
1869
1870 if (uuid_str2bin(uuid, u) == 0)
1871 use_uuid = u;
1872 else if (hwaddr_aton(uuid, addr) == 0)
1873 use_addr = addr;
1874 else
1875 return -1;
1876 if (settings->ssid_hex == NULL || settings->auth == NULL ||
1877 settings->encr == NULL || settings->key_hex == NULL)
1878 return -1;
1879
1880 os_memset(&cred, 0, sizeof(cred));
1881 len = os_strlen(settings->ssid_hex);
1882 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1883 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1884 return -1;
1885 cred.ssid_len = len / 2;
1886
1887 len = os_strlen(settings->key_hex);
1888 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1889 hexstr2bin(settings->key_hex, cred.key, len / 2))
1890 return -1;
1891 cred.key_len = len / 2;
1892
1893 if (os_strcmp(settings->auth, "OPEN") == 0)
1894 cred.auth_type = WPS_AUTH_OPEN;
1895 else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1896 cred.auth_type = WPS_AUTH_WPAPSK;
1897 else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1898 cred.auth_type = WPS_AUTH_WPA2PSK;
1899 else
1900 return -1;
1901
1902 if (os_strcmp(settings->encr, "NONE") == 0)
1903 cred.encr_type = WPS_ENCR_NONE;
1904 else if (os_strcmp(settings->encr, "WEP") == 0)
1905 cred.encr_type = WPS_ENCR_WEP;
1906 else if (os_strcmp(settings->encr, "TKIP") == 0)
1907 cred.encr_type = WPS_ENCR_TKIP;
1908 else if (os_strcmp(settings->encr, "CCMP") == 0)
1909 cred.encr_type = WPS_ENCR_AES;
1910 else
1911 return -1;
1912
1913 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr,
1914 (const u8 *) pin, os_strlen(pin), &cred);
1915 }
1916
1917
1918 #ifdef CONFIG_WPS_NFC
1919 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
1920 int ndef, const char *uuid)
1921 {
1922 struct wpabuf *ret;
1923 u8 u[UUID_LEN], *use_uuid = NULL;
1924 u8 addr[ETH_ALEN], *use_addr = NULL;
1925
1926 if (!wpa_s->wps_er)
1927 return NULL;
1928
1929 if (uuid_str2bin(uuid, u) == 0)
1930 use_uuid = u;
1931 else if (hwaddr_aton(uuid, addr) == 0)
1932 use_addr = addr;
1933 else
1934 return NULL;
1935
1936 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
1937 if (ndef && ret) {
1938 struct wpabuf *tmp;
1939 tmp = ndef_build_wifi(ret);
1940 wpabuf_free(ret);
1941 if (tmp == NULL)
1942 return NULL;
1943 ret = tmp;
1944 }
1945
1946 return ret;
1947 }
1948 #endif /* CONFIG_WPS_NFC */
1949
1950
1951 static int callbacks_pending = 0;
1952
1953 static void wpas_wps_terminate_cb(void *ctx)
1954 {
1955 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1956 if (--callbacks_pending <= 0)
1957 eloop_terminate();
1958 }
1959 #endif /* CONFIG_WPS_ER */
1960
1961
1962 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1963 {
1964 #ifdef CONFIG_WPS_ER
1965 if (wpa_s->wps_er) {
1966 callbacks_pending++;
1967 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1968 wpa_s->wps_er = NULL;
1969 return 1;
1970 }
1971 #endif /* CONFIG_WPS_ER */
1972 return 0;
1973 }
1974
1975
1976 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1977 {
1978 struct wps_context *wps = wpa_s->wps;
1979
1980 if (wps == NULL)
1981 return;
1982
1983 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1984 wps->config_methods = wps_config_methods_str2bin(
1985 wpa_s->conf->config_methods);
1986 if ((wps->config_methods &
1987 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1988 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1989 wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1990 "config methods are not allowed at the "
1991 "same time");
1992 wps->config_methods &= ~WPS_CONFIG_LABEL;
1993 }
1994 }
1995 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1996 wps->dev.config_methods = wps->config_methods;
1997
1998 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1999 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
2000 WPS_DEV_TYPE_LEN);
2001
2002 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
2003 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2004 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
2005 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2006 }
2007
2008 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
2009 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
2010
2011 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
2012 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
2013
2014 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
2015 wpas_wps_set_uuid(wpa_s, wps);
2016
2017 if (wpa_s->conf->changed_parameters &
2018 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
2019 /* Update pointers to make sure they refer current values */
2020 wps->dev.device_name = wpa_s->conf->device_name;
2021 wps->dev.manufacturer = wpa_s->conf->manufacturer;
2022 wps->dev.model_name = wpa_s->conf->model_name;
2023 wps->dev.model_number = wpa_s->conf->model_number;
2024 wps->dev.serial_number = wpa_s->conf->serial_number;
2025 }
2026 }
2027
2028
2029 #ifdef CONFIG_WPS_NFC
2030
2031 #ifdef CONFIG_WPS_ER
2032 static struct wpabuf *
2033 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef,
2034 struct wpa_ssid *ssid)
2035 {
2036 struct wpabuf *ret;
2037 struct wps_credential cred;
2038
2039 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
2040 return NULL;
2041
2042 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred);
2043
2044 if (ndef && ret) {
2045 struct wpabuf *tmp;
2046 tmp = ndef_build_wifi(ret);
2047 wpabuf_free(ret);
2048 if (tmp == NULL)
2049 return NULL;
2050 ret = tmp;
2051 }
2052
2053 return ret;
2054 }
2055 #endif /* CONFIG_WPS_ER */
2056
2057
2058 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
2059 int ndef, const char *id_str)
2060 {
2061 #ifdef CONFIG_WPS_ER
2062 if (id_str) {
2063 int id;
2064 char *end = NULL;
2065 struct wpa_ssid *ssid;
2066
2067 id = strtol(id_str, &end, 10);
2068 if (end && *end)
2069 return NULL;
2070
2071 ssid = wpa_config_get_network(wpa_s->conf, id);
2072 if (ssid == NULL)
2073 return NULL;
2074 return wpas_wps_network_config_token(wpa_s, ndef, ssid);
2075 }
2076 #endif /* CONFIG_WPS_ER */
2077 #ifdef CONFIG_AP
2078 if (wpa_s->ap_iface)
2079 return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
2080 #endif /* CONFIG_AP */
2081 return NULL;
2082 }
2083
2084
2085 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
2086 {
2087 if (wpa_s->conf->wps_nfc_pw_from_config) {
2088 return wps_nfc_token_build(ndef,
2089 wpa_s->conf->wps_nfc_dev_pw_id,
2090 wpa_s->conf->wps_nfc_dh_pubkey,
2091 wpa_s->conf->wps_nfc_dev_pw);
2092 }
2093
2094 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
2095 &wpa_s->conf->wps_nfc_dh_pubkey,
2096 &wpa_s->conf->wps_nfc_dh_privkey,
2097 &wpa_s->conf->wps_nfc_dev_pw);
2098 }
2099
2100
2101 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *bssid,
2102 const struct wpabuf *dev_pw, u16 dev_pw_id,
2103 int p2p_group, const u8 *peer_pubkey_hash,
2104 const u8 *ssid, size_t ssid_len)
2105 {
2106 struct wps_context *wps = wpa_s->wps;
2107 char pw[32 * 2 + 1];
2108
2109 if (dev_pw == NULL) {
2110 dev_pw = wpa_s->conf->wps_nfc_dev_pw;
2111 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
2112 }
2113
2114 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
2115 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
2116 dev_pw == NULL)
2117 return -1;
2118
2119 dh5_free(wps->dh_ctx);
2120 wpabuf_free(wps->dh_pubkey);
2121 wpabuf_free(wps->dh_privkey);
2122 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2123 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2124 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
2125 wps->dh_ctx = NULL;
2126 wpabuf_free(wps->dh_pubkey);
2127 wps->dh_pubkey = NULL;
2128 wpabuf_free(wps->dh_privkey);
2129 wps->dh_privkey = NULL;
2130 return -1;
2131 }
2132 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
2133 if (wps->dh_ctx == NULL) {
2134 wpabuf_free(wps->dh_pubkey);
2135 wps->dh_pubkey = NULL;
2136 wpabuf_free(wps->dh_privkey);
2137 wps->dh_privkey = NULL;
2138 return -1;
2139 }
2140
2141 wpa_snprintf_hex_uppercase(pw, sizeof(pw),
2142 wpabuf_head(dev_pw), wpabuf_len(dev_pw));
2143 return wpas_wps_start_dev_pw(wpa_s, bssid, pw, p2p_group, dev_pw_id,
2144 peer_pubkey_hash, ssid, ssid_len);
2145 }
2146
2147
2148 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
2149 struct wps_parse_attr *attr)
2150 {
2151 wpa_s->wps_ap_channel = 0;
2152
2153 /*
2154 * Disable existing networks temporarily to allow the newly learned
2155 * credential to be preferred. Enable the temporarily disabled networks
2156 * after 10 seconds.
2157 */
2158 wpas_wps_temp_disable(wpa_s, NULL);
2159 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
2160 NULL);
2161
2162 if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
2163 return -1;
2164
2165 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2166 return 0;
2167
2168 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
2169 "based on the received credential added");
2170 wpa_s->normal_scans = 0;
2171 wpa_supplicant_reinit_autoscan(wpa_s);
2172 if (wpa_s->wps_ap_channel) {
2173 u16 chan = wpa_s->wps_ap_channel;
2174 int freq = 0;
2175
2176 if (chan >= 1 && chan <= 13)
2177 freq = 2407 + 5 * chan;
2178 else if (chan == 14)
2179 freq = 2484;
2180 else if (chan >= 30)
2181 freq = 5000 + 5 * chan;
2182
2183 if (freq) {
2184 wpa_printf(MSG_DEBUG, "WPS: Credential indicated "
2185 "AP channel %u -> %u MHz", chan, freq);
2186 wpa_s->after_wps = 5;
2187 wpa_s->wps_freq = freq;
2188 }
2189 }
2190 wpa_s->disconnected = 0;
2191 wpa_s->reassociate = 1;
2192
2193 wpa_supplicant_cancel_sched_scan(wpa_s);
2194 wpa_supplicant_req_scan(wpa_s, 0, 0);
2195
2196 return 0;
2197 }
2198
2199
2200 #ifdef CONFIG_WPS_ER
2201 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
2202 struct wps_parse_attr *attr)
2203 {
2204 return wps_registrar_add_nfc_password_token(
2205 wpa_s->wps->registrar, attr->oob_dev_password,
2206 attr->oob_dev_password_len);
2207 }
2208 #endif /* CONFIG_WPS_ER */
2209
2210
2211 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
2212 const struct wpabuf *wps)
2213 {
2214 struct wps_parse_attr attr;
2215
2216 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
2217
2218 if (wps_parse_msg(wps, &attr)) {
2219 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
2220 return -1;
2221 }
2222
2223 if (attr.num_cred)
2224 return wpas_wps_use_cred(wpa_s, &attr);
2225
2226 #ifdef CONFIG_WPS_ER
2227 if (attr.oob_dev_password)
2228 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
2229 #endif /* CONFIG_WPS_ER */
2230
2231 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
2232 return -1;
2233 }
2234
2235
2236 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
2237 const struct wpabuf *data)
2238 {
2239 const struct wpabuf *wps = data;
2240 struct wpabuf *tmp = NULL;
2241 int ret;
2242
2243 if (wpabuf_len(data) < 4)
2244 return -1;
2245
2246 if (*wpabuf_head_u8(data) != 0x10) {
2247 /* Assume this contains full NDEF record */
2248 tmp = ndef_parse_wifi(data);
2249 if (tmp == NULL) {
2250 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
2251 return -1;
2252 }
2253 wps = tmp;
2254 }
2255
2256 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2257 wpabuf_free(tmp);
2258 return ret;
2259 }
2260
2261
2262 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, int cr)
2263 {
2264 if (cr)
2265 return ndef_build_wifi_hc(1);
2266 return ndef_build_wifi_hr();
2267 }
2268
2269
2270 #ifdef CONFIG_WPS_NFC
2271 static struct wpabuf *
2272 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef,
2273 const char *uuid)
2274 {
2275 #ifdef CONFIG_WPS_ER
2276 struct wpabuf *ret;
2277 u8 u[UUID_LEN], *use_uuid = NULL;
2278 u8 addr[ETH_ALEN], *use_addr = NULL;
2279
2280 if (!wpa_s->wps_er)
2281 return NULL;
2282
2283 if (uuid == NULL)
2284 return NULL;
2285 if (uuid_str2bin(uuid, u) == 0)
2286 use_uuid = u;
2287 else if (hwaddr_aton(uuid, addr) == 0)
2288 use_addr = addr;
2289 else
2290 return NULL;
2291
2292 /*
2293 * Handover Select carrier record for WPS uses the same format as
2294 * configuration token.
2295 */
2296 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
2297 if (ndef && ret) {
2298 struct wpabuf *tmp;
2299 tmp = ndef_build_wifi(ret);
2300 wpabuf_free(ret);
2301 if (tmp == NULL)
2302 return NULL;
2303 ret = tmp;
2304 }
2305
2306 return ret;
2307 #else /* CONFIG_WPS_ER */
2308 return NULL;
2309 #endif /* CONFIG_WPS_ER */
2310 }
2311 #endif /* CONFIG_WPS_NFC */
2312
2313
2314 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2315 int ndef, int cr, const char *uuid)
2316 {
2317 struct wpabuf *ret;
2318 if (!cr)
2319 return NULL;
2320 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
2321 if (ret)
2322 return ret;
2323 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
2324 }
2325
2326
2327 int wpas_wps_nfc_rx_handover_req(struct wpa_supplicant *wpa_s,
2328 const struct wpabuf *data)
2329 {
2330 /* TODO */
2331 return -1;
2332 }
2333
2334
2335 int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
2336 const struct wpabuf *data)
2337 {
2338 struct wpabuf *wps;
2339 int ret;
2340
2341 wps = ndef_parse_wifi(data);
2342 if (wps == NULL)
2343 return -1;
2344 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2345 "payload from NFC connection handover");
2346 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: NFC payload", wps);
2347 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2348 wpabuf_free(wps);
2349
2350 return ret;
2351 }
2352
2353
2354 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2355 const struct wpabuf *req,
2356 const struct wpabuf *sel)
2357 {
2358 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
2359 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
2360 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
2361 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
2362 }
2363
2364 #endif /* CONFIG_WPS_NFC */
2365
2366
2367 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
2368 {
2369 size_t i;
2370 struct os_reltime now;
2371
2372 if (wpa_debug_level > MSG_DEBUG)
2373 return;
2374
2375 if (wpa_s->wps_ap == NULL)
2376 return;
2377
2378 os_get_reltime(&now);
2379
2380 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2381 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2382 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
2383
2384 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
2385 "tries=%d last_attempt=%d sec ago blacklist=%d",
2386 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
2387 ap->last_attempt.sec > 0 ?
2388 (int) now.sec - (int) ap->last_attempt.sec : -1,
2389 e ? e->count : 0);
2390 }
2391 }
2392
2393
2394 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
2395 const u8 *bssid)
2396 {
2397 size_t i;
2398
2399 if (wpa_s->wps_ap == NULL)
2400 return NULL;
2401
2402 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2403 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2404 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
2405 return ap;
2406 }
2407
2408 return NULL;
2409 }
2410
2411
2412 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
2413 struct wpa_scan_res *res)
2414 {
2415 struct wpabuf *wps;
2416 enum wps_ap_info_type type;
2417 struct wps_ap_info *ap;
2418 int r;
2419
2420 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
2421 return;
2422
2423 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
2424 if (wps == NULL)
2425 return;
2426
2427 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
2428 if (r == 2)
2429 type = WPS_AP_SEL_REG_OUR;
2430 else if (r == 1)
2431 type = WPS_AP_SEL_REG;
2432 else
2433 type = WPS_AP_NOT_SEL_REG;
2434
2435 wpabuf_free(wps);
2436
2437 ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
2438 if (ap) {
2439 if (ap->type != type) {
2440 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
2441 " changed type %d -> %d",
2442 MAC2STR(res->bssid), ap->type, type);
2443 ap->type = type;
2444 if (type != WPS_AP_NOT_SEL_REG)
2445 wpa_blacklist_del(wpa_s, ap->bssid);
2446 }
2447 return;
2448 }
2449
2450 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
2451 sizeof(struct wps_ap_info));
2452 if (ap == NULL)
2453 return;
2454
2455 wpa_s->wps_ap = ap;
2456 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
2457 wpa_s->num_wps_ap++;
2458
2459 os_memset(ap, 0, sizeof(*ap));
2460 os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
2461 ap->type = type;
2462 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
2463 MAC2STR(ap->bssid), ap->type);
2464 }
2465
2466
2467 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
2468 struct wpa_scan_results *scan_res)
2469 {
2470 size_t i;
2471
2472 for (i = 0; i < scan_res->num; i++)
2473 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
2474
2475 wpas_wps_dump_ap_info(wpa_s);
2476 }
2477
2478
2479 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2480 {
2481 struct wps_ap_info *ap;
2482
2483 wpa_s->after_wps = 0;
2484
2485 if (!wpa_s->wps_ap_iter)
2486 return;
2487 ap = wpas_wps_get_ap_info(wpa_s, bssid);
2488 if (ap == NULL)
2489 return;
2490 ap->tries++;
2491 os_get_reltime(&ap->last_attempt);
2492 }
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