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