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