2 * wpa_supplicant / WPS integration
3 * Copyright (c) 2008-2012, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
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"
26 #include "wpa_supplicant_i.h"
29 #include "blacklist.h"
34 #include "p2p_supplicant.h"
35 #include "wps_supplicant.h"
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 */
42 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
43 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
46 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
48 if (!wpa_s->wps_success &&
49 wpa_s->current_ssid &&
50 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
51 const u8 *bssid = wpa_s->bssid;
52 if (is_zero_ether_addr(bssid))
53 bssid = wpa_s->pending_bssid;
55 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
56 " did not succeed - continue trying to find "
57 "suitable AP", MAC2STR(bssid));
58 wpa_blacklist_add(wpa_s, bssid);
60 wpa_supplicant_deauthenticate(wpa_s,
61 WLAN_REASON_DEAUTH_LEAVING);
62 wpa_s->reassociate = 1;
63 wpa_supplicant_req_scan(wpa_s,
64 wpa_s->blacklist_cleared ? 5 : 0, 0);
65 wpa_s->blacklist_cleared = 0;
69 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
70 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
71 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
73 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
74 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
75 int disabled = wpa_s->current_ssid->disabled;
76 unsigned int freq = wpa_s->assoc_freq;
77 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
78 "try to associate with the received credential "
80 wpa_supplicant_deauthenticate(wpa_s,
81 WLAN_REASON_DEAUTH_LEAVING);
83 wpa_printf(MSG_DEBUG, "WPS: Current network is "
84 "disabled - wait for user to enable");
88 wpa_s->wps_freq = freq;
89 wpa_s->normal_scans = 0;
90 wpa_s->reassociate = 1;
91 wpa_supplicant_req_scan(wpa_s, 0, 0);
95 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
96 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
97 "for external credential processing");
98 wpas_clear_wps(wpa_s);
99 wpa_supplicant_deauthenticate(wpa_s,
100 WLAN_REASON_DEAUTH_LEAVING);
108 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
109 struct wpa_ssid *ssid,
110 const struct wps_credential *cred)
112 struct wpa_driver_capa capa;
115 struct wpa_ie_data adv;
116 int wpa2 = 0, ccmp = 0;
119 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
120 * case they are configured for mixed mode operation (WPA+WPA2 and
121 * TKIP+CCMP). Try to use scan results to figure out whether the AP
122 * actually supports stronger security and select that if the client
123 * has support for it, too.
126 if (wpa_drv_get_capa(wpa_s, &capa))
127 return; /* Unknown what driver supports */
129 if (ssid->ssid == NULL)
131 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
133 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
134 "table - use credential as-is");
138 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
140 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
141 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
143 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
146 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
147 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
148 adv.pairwise_cipher & WPA_CIPHER_CCMP)
152 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
153 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
155 * TODO: This could be the initial AP configuration and the
156 * Beacon contents could change shortly. Should request a new
157 * scan and delay addition of the network until the updated
158 * scan results are available.
160 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
161 "support - use credential as-is");
165 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
166 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
167 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
168 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
169 "based on scan results");
170 if (wpa_s->conf->ap_scan == 1)
171 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
173 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
176 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
177 (ssid->proto & WPA_PROTO_WPA) &&
178 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
179 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
180 "based on scan results");
181 if (wpa_s->conf->ap_scan == 1)
182 ssid->proto |= WPA_PROTO_RSN;
184 ssid->proto = WPA_PROTO_RSN;
189 static int wpa_supplicant_wps_cred(void *ctx,
190 const struct wps_credential *cred)
192 struct wpa_supplicant *wpa_s = ctx;
193 struct wpa_ssid *ssid = wpa_s->current_ssid;
196 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
198 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
200 if ((wpa_s->conf->wps_cred_processing == 1 ||
201 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
202 size_t blen = cred->cred_attr_len * 2 + 1;
203 char *buf = os_malloc(blen);
205 wpa_snprintf_hex(buf, blen,
206 cred->cred_attr, cred->cred_attr_len);
207 wpa_msg(wpa_s, MSG_INFO, "%s%s",
208 WPS_EVENT_CRED_RECEIVED, buf);
212 wpas_notify_wps_credential(wpa_s, cred);
214 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
216 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
217 cred->cred_attr, cred->cred_attr_len);
219 if (wpa_s->conf->wps_cred_processing == 1)
222 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
223 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
225 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
226 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
227 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
228 cred->key, cred->key_len);
229 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
230 MAC2STR(cred->mac_addr));
232 auth_type = cred->auth_type;
233 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
234 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
235 "auth_type into WPA2PSK");
236 auth_type = WPS_AUTH_WPA2PSK;
239 if (auth_type != WPS_AUTH_OPEN &&
240 auth_type != WPS_AUTH_SHARED &&
241 auth_type != WPS_AUTH_WPAPSK &&
242 auth_type != WPS_AUTH_WPA2PSK) {
243 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
244 "unsupported authentication type 0x%x",
249 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
250 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
251 "on the received credential");
252 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
253 if (ssid->eap.identity &&
254 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
255 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
256 WSC_ID_REGISTRAR_LEN) == 0)
258 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
259 os_free(ssid->eap.identity);
260 ssid->eap.identity = NULL;
261 ssid->eap.identity_len = 0;
262 os_free(ssid->eap.phase1);
263 ssid->eap.phase1 = NULL;
264 os_free(ssid->eap.eap_methods);
265 ssid->eap.eap_methods = NULL;
266 if (!ssid->p2p_group) {
270 ssid->disabled_until.sec = 0;
271 ssid->disabled_until.usec = 0;
272 ssid->auth_failures = 0;
274 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
275 "received credential");
276 ssid = wpa_config_add_network(wpa_s->conf);
279 wpas_notify_network_added(wpa_s, ssid);
282 wpa_config_set_network_defaults(ssid);
285 ssid->ssid = os_malloc(cred->ssid_len);
287 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
288 ssid->ssid_len = cred->ssid_len;
291 switch (cred->encr_type) {
295 if (cred->key_len <= 0)
297 if (cred->key_len != 5 && cred->key_len != 13 &&
298 cred->key_len != 10 && cred->key_len != 26) {
299 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
300 "%lu", (unsigned long) cred->key_len);
303 if (cred->key_idx > NUM_WEP_KEYS) {
304 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
309 key_idx = cred->key_idx - 1;
310 if (cred->key_len == 10 || cred->key_len == 26) {
311 if (hexstr2bin((char *) cred->key,
312 ssid->wep_key[key_idx],
313 cred->key_len / 2) < 0) {
314 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
318 ssid->wep_key_len[key_idx] = cred->key_len / 2;
320 os_memcpy(ssid->wep_key[key_idx], cred->key,
322 ssid->wep_key_len[key_idx] = cred->key_len;
324 ssid->wep_tx_keyidx = key_idx;
327 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
330 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
336 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
337 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
339 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
341 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
342 "id=%d - Credentials for an open "
343 "network disabled by default - use "
344 "'select_network %d' to enable",
348 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
350 case WPS_AUTH_SHARED:
351 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
352 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
355 case WPS_AUTH_WPAPSK:
356 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
357 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
358 ssid->proto = WPA_PROTO_WPA;
360 case WPS_AUTH_WPA2PSK:
361 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
362 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
363 ssid->proto = WPA_PROTO_RSN;
367 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
368 if (cred->key_len == 2 * PMK_LEN) {
369 if (hexstr2bin((const char *) cred->key, ssid->psk,
371 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
376 ssid->export_keys = 1;
377 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
378 os_free(ssid->passphrase);
379 ssid->passphrase = os_malloc(cred->key_len + 1);
380 if (ssid->passphrase == NULL)
382 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
383 ssid->passphrase[cred->key_len] = '\0';
384 wpa_config_update_psk(ssid);
385 ssid->export_keys = 1;
387 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
389 (unsigned long) cred->key_len);
394 wpas_wps_security_workaround(wpa_s, ssid, cred);
396 #ifndef CONFIG_NO_CONFIG_WRITE
397 if (wpa_s->conf->update_config &&
398 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
399 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
402 #endif /* CONFIG_NO_CONFIG_WRITE */
409 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
411 struct wpa_supplicant *wpa_s = eloop_ctx;
412 wpas_p2p_notif_pbc_overlap(wpa_s);
414 #endif /* CONFIG_P2P */
417 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
418 struct wps_event_m2d *m2d)
420 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
421 "dev_password_id=%d config_error=%d",
422 m2d->dev_password_id, m2d->config_error);
423 wpas_notify_wps_event_m2d(wpa_s, m2d);
425 if (wpa_s->parent && wpa_s->parent != wpa_s) {
426 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
427 "dev_password_id=%d config_error=%d",
428 m2d->dev_password_id, m2d->config_error);
430 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
432 * Notify P2P from eloop timeout to avoid issues with the
433 * interface getting removed while processing a message.
435 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
438 #endif /* CONFIG_P2P */
442 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
443 "No Error", /* WPS_EI_NO_ERROR */
444 "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
445 "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
448 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
449 struct wps_event_fail *fail)
451 if (fail->error_indication > 0 &&
452 fail->error_indication < NUM_WPS_EI_VALUES) {
453 wpa_msg(wpa_s, MSG_INFO,
454 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
455 fail->msg, fail->config_error, fail->error_indication,
456 wps_event_fail_reason[fail->error_indication]);
457 if (wpa_s->parent && wpa_s->parent != wpa_s)
458 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
459 "msg=%d config_error=%d reason=%d (%s)",
460 fail->msg, fail->config_error,
461 fail->error_indication,
462 wps_event_fail_reason[fail->error_indication]);
464 wpa_msg(wpa_s, MSG_INFO,
465 WPS_EVENT_FAIL "msg=%d config_error=%d",
466 fail->msg, fail->config_error);
467 if (wpa_s->parent && wpa_s->parent != wpa_s)
468 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
469 "msg=%d config_error=%d",
470 fail->msg, fail->config_error);
472 wpas_clear_wps(wpa_s);
473 wpas_notify_wps_event_fail(wpa_s, fail);
475 wpas_p2p_wps_failed(wpa_s, fail);
476 #endif /* CONFIG_P2P */
480 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
482 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
483 wpa_s->wps_success = 1;
484 wpas_notify_wps_event_success(wpa_s);
486 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
487 #endif /* CONFIG_P2P */
491 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
492 struct wps_event_er_ap *ap)
495 char dev_type[WPS_DEV_TYPE_BUFSIZE];
497 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
498 if (ap->pri_dev_type)
499 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
504 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
505 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
506 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
507 ap->friendly_name ? ap->friendly_name : "",
508 ap->manufacturer ? ap->manufacturer : "",
509 ap->model_description ? ap->model_description : "",
510 ap->model_name ? ap->model_name : "",
511 ap->manufacturer_url ? ap->manufacturer_url : "",
512 ap->model_url ? ap->model_url : "");
516 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
517 struct wps_event_er_ap *ap)
520 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
521 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
525 static void wpa_supplicant_wps_event_er_enrollee_add(
526 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
529 char dev_type[WPS_DEV_TYPE_BUFSIZE];
531 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
532 if (enrollee->pri_dev_type)
533 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
538 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
539 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
541 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
542 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
543 enrollee->dev_name ? enrollee->dev_name : "",
544 enrollee->manufacturer ? enrollee->manufacturer : "",
545 enrollee->model_name ? enrollee->model_name : "",
546 enrollee->model_number ? enrollee->model_number : "",
547 enrollee->serial_number ? enrollee->serial_number : "");
551 static void wpa_supplicant_wps_event_er_enrollee_remove(
552 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
555 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
556 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
557 uuid_str, MAC2STR(enrollee->mac_addr));
561 static void wpa_supplicant_wps_event_er_ap_settings(
562 struct wpa_supplicant *wpa_s,
563 struct wps_event_er_ap_settings *ap_settings)
567 const struct wps_credential *cred = ap_settings->cred;
570 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
571 if (cred->key_len >= 8 && cred->key_len <= 64) {
572 os_memcpy(key_str, cred->key, cred->key_len);
573 key_str[cred->key_len] = '\0';
577 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
578 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
579 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
580 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
582 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
583 cred->auth_type, cred->encr_type, key_str);
587 static void wpa_supplicant_wps_event_er_set_sel_reg(
588 struct wpa_supplicant *wpa_s,
589 struct wps_event_er_set_selected_registrar *ev)
593 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
595 case WPS_ER_SET_SEL_REG_START:
596 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
597 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
598 "sel_reg_config_methods=0x%x",
599 uuid_str, ev->sel_reg, ev->dev_passwd_id,
600 ev->sel_reg_config_methods);
602 case WPS_ER_SET_SEL_REG_DONE:
603 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
604 "uuid=%s state=DONE", uuid_str);
606 case WPS_ER_SET_SEL_REG_FAILED:
607 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
608 "uuid=%s state=FAILED", uuid_str);
614 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
615 union wps_event_data *data)
617 struct wpa_supplicant *wpa_s = ctx;
620 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
623 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
626 wpa_supplicant_wps_event_success(wpa_s);
628 case WPS_EV_PWD_AUTH_FAIL:
630 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
631 wpa_supplicant_ap_pwd_auth_fail(wpa_s);
632 #endif /* CONFIG_AP */
634 case WPS_EV_PBC_OVERLAP:
636 case WPS_EV_PBC_TIMEOUT:
638 case WPS_EV_ER_AP_ADD:
639 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
641 case WPS_EV_ER_AP_REMOVE:
642 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
644 case WPS_EV_ER_ENROLLEE_ADD:
645 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
648 case WPS_EV_ER_ENROLLEE_REMOVE:
649 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
652 case WPS_EV_ER_AP_SETTINGS:
653 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
656 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
657 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
660 case WPS_EV_AP_PIN_SUCCESS:
666 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
668 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
669 eap_is_wps_pin_enrollee(&ssid->eap))
670 return WPS_REQ_ENROLLEE;
672 return WPS_REQ_REGISTRAR;
676 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
679 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
681 prev_current = wpa_s->current_ssid;
683 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
685 /* Remove any existing WPS network from configuration */
686 ssid = wpa_s->conf->ssid;
688 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
689 if (ssid == wpa_s->current_ssid) {
690 wpa_s->current_ssid = NULL;
692 wpas_notify_network_changed(wpa_s);
700 if (prev_current == remove_ssid) {
701 wpa_sm_set_config(wpa_s->wpa, NULL);
702 eapol_sm_notify_config(wpa_s->eapol, NULL,
705 wpas_notify_network_removed(wpa_s, remove_ssid);
706 wpa_config_remove_network(wpa_s->conf, id);
712 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
714 struct wpa_supplicant *wpa_s = eloop_ctx;
715 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
717 wpas_clear_wps(wpa_s);
721 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
722 int registrar, const u8 *bssid)
724 struct wpa_ssid *ssid;
726 ssid = wpa_config_add_network(wpa_s->conf);
729 wpas_notify_network_added(wpa_s, ssid);
730 wpa_config_set_network_defaults(ssid);
732 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
733 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
734 wpa_config_set(ssid, "identity", registrar ?
735 "\"" WSC_ID_REGISTRAR "\"" :
736 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
737 wpas_notify_network_removed(wpa_s, ssid);
738 wpa_config_remove_network(wpa_s->conf, ssid->id);
746 #endif /* CONFIG_P2P */
748 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
752 * Note: With P2P, the SSID may change at the time the WPS
753 * provisioning is started, so better not filter the AP based
754 * on the current SSID in the scan results.
757 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
758 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
762 ssid->ssid = os_malloc(bss->ssid_len);
763 if (ssid->ssid == NULL)
765 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
766 ssid->ssid_len = bss->ssid_len;
767 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
769 ssid->ssid, ssid->ssid_len);
774 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
775 "for the AP; use wildcard");
780 #endif /* CONFIG_P2P */
787 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
788 struct wpa_ssid *selected, const u8 *bssid)
790 struct wpa_ssid *ssid;
793 wpa_s->known_wps_freq = 0;
795 bss = wpa_bss_get_bssid(wpa_s, bssid);
796 if (bss && bss->freq > 0) {
797 wpa_s->known_wps_freq = 1;
798 wpa_s->wps_freq = bss->freq;
802 if (wpa_s->current_ssid)
803 wpa_supplicant_deauthenticate(
804 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
806 /* Mark all other networks disabled and trigger reassociation */
807 ssid = wpa_s->conf->ssid;
809 int was_disabled = ssid->disabled;
811 * In case the network object corresponds to a persistent group
812 * then do not send out network disabled signal. In addition,
813 * do not change disabled status of persistent network objects
814 * from 2 to 1 should we connect to another network.
816 if (was_disabled != 2) {
817 ssid->disabled = ssid != selected;
818 if (was_disabled != ssid->disabled)
819 wpas_notify_network_enabled_changed(wpa_s,
824 wpa_s->disconnected = 0;
825 wpa_s->reassociate = 1;
826 wpa_s->scan_runs = 0;
827 wpa_s->normal_scans = 0;
828 wpa_s->wps_success = 0;
829 wpa_s->blacklist_cleared = 0;
830 wpa_supplicant_req_scan(wpa_s, 0, 0);
834 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
837 struct wpa_ssid *ssid;
838 wpas_clear_wps(wpa_s);
839 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
843 ssid->p2p_group = p2p_group;
845 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
846 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
848 ssid->ssid_len = wpa_s->go_params->ssid_len;
849 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
851 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
852 "SSID", ssid->ssid, ssid->ssid_len);
855 #endif /* CONFIG_P2P */
856 wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
857 if (wpa_s->wps_fragment_size)
858 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
859 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
861 wpas_wps_reassoc(wpa_s, ssid, bssid);
866 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
867 const char *pin, int p2p_group, u16 dev_pw_id)
869 struct wpa_ssid *ssid;
871 unsigned int rpin = 0;
873 wpas_clear_wps(wpa_s);
874 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
878 ssid->p2p_group = p2p_group;
880 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
881 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
883 ssid->ssid_len = wpa_s->go_params->ssid_len;
884 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
886 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
887 "SSID", ssid->ssid, ssid->ssid_len);
890 #endif /* CONFIG_P2P */
892 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
895 rpin = wps_generate_pin();
896 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
899 wpa_config_set(ssid, "phase1", val, 0);
900 if (wpa_s->wps_fragment_size)
901 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
902 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
904 wpas_wps_reassoc(wpa_s, ssid, bssid);
909 /* Cancel the wps pbc/pin requests */
910 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
913 if (wpa_s->ap_iface) {
914 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
915 return wpa_supplicant_ap_wps_cancel(wpa_s);
917 #endif /* CONFIG_AP */
919 if (wpa_s->wpa_state == WPA_SCANNING ||
920 wpa_s->wpa_state == WPA_DISCONNECTED) {
921 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
922 wpa_supplicant_cancel_scan(wpa_s);
923 wpas_clear_wps(wpa_s);
924 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
925 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
927 wpa_supplicant_deauthenticate(wpa_s,
928 WLAN_REASON_DEAUTH_LEAVING);
929 wpas_clear_wps(wpa_s);
936 #ifdef CONFIG_WPS_OOB
937 int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
938 char *path, char *method, char *name)
940 struct wps_context *wps = wpa_s->wps;
941 struct oob_device_data *oob_dev;
943 oob_dev = wps_get_oob_device(device_type);
946 oob_dev->device_path = path;
947 oob_dev->device_name = name;
948 wps->oob_conf.oob_method = wps_get_oob_method(method);
950 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
952 * Use pre-configured DH keys in order to be able to write the
953 * key hash into the OOB file.
955 wpabuf_free(wps->dh_pubkey);
956 wpabuf_free(wps->dh_privkey);
957 wps->dh_privkey = NULL;
958 wps->dh_pubkey = NULL;
959 dh5_free(wps->dh_ctx);
960 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
961 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
962 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
963 wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
964 "Diffie-Hellman handshake");
969 if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
970 wpas_clear_wps(wpa_s);
972 if (wps_process_oob(wps, oob_dev, 0) < 0)
975 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
976 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
977 wpas_wps_start_pin(wpa_s, NULL,
978 wpabuf_head(wps->oob_conf.dev_password), 0,
984 #endif /* CONFIG_WPS_OOB */
987 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
988 const char *pin, struct wps_new_ap_settings *settings)
990 struct wpa_ssid *ssid;
997 wpas_clear_wps(wpa_s);
998 ssid = wpas_wps_add_network(wpa_s, 1, bssid);
1001 ssid->temporary = 1;
1003 end = pos + sizeof(val);
1004 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1005 if (res < 0 || res >= end - pos)
1009 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1010 "new_encr=%s new_key=%s",
1011 settings->ssid_hex, settings->auth,
1012 settings->encr, settings->key_hex);
1013 if (res < 0 || res >= end - pos)
1017 res = os_snprintf(pos, end - pos, "\"");
1018 if (res < 0 || res >= end - pos)
1020 wpa_config_set(ssid, "phase1", val, 0);
1021 if (wpa_s->wps_fragment_size)
1022 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1023 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1025 wpas_wps_reassoc(wpa_s, ssid, bssid);
1030 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1033 wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1034 "STA " MACSTR, MAC2STR(mac_addr));
1035 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1043 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1044 const struct wps_device_data *dev)
1046 char uuid[40], txt[400];
1048 char devtype[WPS_DEV_TYPE_BUFSIZE];
1049 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1051 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1052 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1053 " [%s|%s|%s|%s|%s|%s]",
1054 uuid, MAC2STR(dev->mac_addr), dev->device_name,
1055 dev->manufacturer, dev->model_name,
1056 dev->model_number, dev->serial_number,
1057 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1059 if (len > 0 && len < (int) sizeof(txt))
1060 wpa_printf(MSG_INFO, "%s", txt);
1064 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1065 u16 sel_reg_config_methods)
1067 #ifdef CONFIG_WPS_ER
1068 struct wpa_supplicant *wpa_s = ctx;
1070 if (wpa_s->wps_er == NULL)
1072 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1073 "dev_password_id=%u sel_reg_config_methods=0x%x",
1074 sel_reg, dev_passwd_id, sel_reg_config_methods);
1075 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1076 sel_reg_config_methods);
1077 #endif /* CONFIG_WPS_ER */
1081 static u16 wps_fix_config_methods(u16 config_methods)
1084 if ((config_methods &
1085 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1086 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1087 wpa_printf(MSG_INFO, "WPS: Converting display to "
1088 "virtual_display for WPS 2.0 compliance");
1089 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1091 if ((config_methods &
1092 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1093 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1094 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1095 "virtual_push_button for WPS 2.0 compliance");
1096 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1098 #endif /* CONFIG_WPS2 */
1100 return config_methods;
1104 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1105 struct wps_context *wps)
1107 wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1108 if (is_nil_uuid(wpa_s->conf->uuid)) {
1109 struct wpa_supplicant *first;
1110 first = wpa_s->global->ifaces;
1111 while (first && first->next)
1112 first = first->next;
1113 if (first && first != wpa_s) {
1114 if (wps != wpa_s->global->ifaces->wps)
1115 os_memcpy(wps->uuid,
1116 wpa_s->global->ifaces->wps->uuid,
1118 wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1119 "interface", wps->uuid, WPS_UUID_LEN);
1121 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1122 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1123 "address", wps->uuid, WPS_UUID_LEN);
1126 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1127 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1128 wps->uuid, WPS_UUID_LEN);
1133 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1134 struct wps_context *wps)
1136 wpabuf_free(wps->dev.vendor_ext_m1);
1137 wps->dev.vendor_ext_m1 = NULL;
1139 if (wpa_s->conf->wps_vendor_ext_m1) {
1140 wps->dev.vendor_ext_m1 =
1141 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1142 if (!wps->dev.vendor_ext_m1) {
1143 wpa_printf(MSG_ERROR, "WPS: Cannot "
1144 "allocate memory for vendor_ext_m1");
1150 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1152 struct wps_context *wps;
1153 struct wps_registrar_config rcfg;
1154 struct hostapd_hw_modes *modes;
1157 wps = os_zalloc(sizeof(*wps));
1161 wps->cred_cb = wpa_supplicant_wps_cred;
1162 wps->event_cb = wpa_supplicant_wps_event;
1163 wps->cb_ctx = wpa_s;
1165 wps->dev.device_name = wpa_s->conf->device_name;
1166 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1167 wps->dev.model_name = wpa_s->conf->model_name;
1168 wps->dev.model_number = wpa_s->conf->model_number;
1169 wps->dev.serial_number = wpa_s->conf->serial_number;
1170 wps->config_methods =
1171 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1172 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1173 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1174 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1175 "methods are not allowed at the same time");
1179 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1180 wps->dev.config_methods = wps->config_methods;
1181 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1184 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1185 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1186 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1188 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1190 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1191 modes = wpa_s->hw.modes;
1193 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1194 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1195 modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1196 wps->dev.rf_bands |= WPS_RF_24GHZ;
1197 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1198 wps->dev.rf_bands |= WPS_RF_50GHZ;
1201 if (wps->dev.rf_bands == 0) {
1203 * Default to claiming support for both bands if the driver
1204 * does not provide support for fetching supported bands.
1206 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1208 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1209 wpas_wps_set_uuid(wpa_s, wps);
1211 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1212 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1214 os_memset(&rcfg, 0, sizeof(rcfg));
1215 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1216 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1217 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1218 rcfg.cb_ctx = wpa_s;
1220 wps->registrar = wps_registrar_init(wps, &rcfg);
1221 if (wps->registrar == NULL) {
1222 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1233 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1235 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1237 if (wpa_s->wps == NULL)
1240 #ifdef CONFIG_WPS_ER
1241 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1242 wpa_s->wps_er = NULL;
1243 #endif /* CONFIG_WPS_ER */
1245 wps_registrar_deinit(wpa_s->wps->registrar);
1246 wpabuf_free(wpa_s->wps->dh_pubkey);
1247 wpabuf_free(wpa_s->wps->dh_privkey);
1248 wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
1249 wpabuf_free(wpa_s->wps->oob_conf.dev_password);
1250 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
1251 os_free(wpa_s->wps->network_key);
1252 os_free(wpa_s->wps);
1257 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1258 struct wpa_ssid *ssid, struct wpa_scan_res *bss)
1260 struct wpabuf *wps_ie;
1262 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1265 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1266 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1268 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1272 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1273 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1274 "without active PBC Registrar");
1275 wpabuf_free(wps_ie);
1279 /* TODO: overlap detection */
1280 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1282 wpabuf_free(wps_ie);
1286 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1288 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1293 * Start with WPS APs that advertise our address as an
1294 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1295 * allow any WPS AP after couple of scans since some APs do not
1296 * set Selected Registrar attribute properly when using
1297 * external Registrar.
1299 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1300 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1301 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1302 "without active PIN Registrar");
1303 wpabuf_free(wps_ie);
1306 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1308 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1309 "(Authorized MAC or Active PIN)");
1311 wpabuf_free(wps_ie);
1316 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1317 wpabuf_free(wps_ie);
1325 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1326 struct wpa_ssid *ssid,
1327 struct wpa_scan_res *bss)
1329 struct wpabuf *wps_ie = NULL;
1332 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1333 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1334 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1335 /* allow wildcard SSID for WPS PBC */
1338 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1339 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1341 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1342 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1343 /* allow wildcard SSID for WPS PIN */
1348 if (!ret && ssid->bssid_set &&
1349 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1350 /* allow wildcard SSID due to hardcoded BSSID match */
1354 #ifdef CONFIG_WPS_STRICT
1356 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1359 if (bss->beacon_ie_len) {
1360 struct wpabuf *bcn_wps;
1361 bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
1362 bss, WPS_IE_VENDOR_TYPE);
1363 if (bcn_wps == NULL) {
1364 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1365 "missing from AP Beacon");
1368 if (wps_validate_beacon(wps_ie) < 0)
1370 wpabuf_free(bcn_wps);
1374 #endif /* CONFIG_WPS_STRICT */
1376 wpabuf_free(wps_ie);
1382 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1383 struct wpa_bss *selected, struct wpa_ssid *ssid)
1385 const u8 *sel_uuid, *uuid;
1386 struct wpabuf *wps_ie;
1388 struct wpa_bss *bss;
1390 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1393 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1394 "present in scan results; selected BSSID " MACSTR,
1395 MAC2STR(selected->bssid));
1397 /* Make sure that only one AP is in active PBC mode */
1398 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1400 sel_uuid = wps_get_uuid_e(wps_ie);
1401 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1402 sel_uuid, UUID_LEN);
1404 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1409 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1411 if (bss == selected)
1413 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1416 if (!wps_is_selected_pbc_registrar(ie)) {
1420 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1421 MACSTR, MAC2STR(bss->bssid));
1422 uuid = wps_get_uuid_e(ie);
1423 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1425 if (sel_uuid == NULL || uuid == NULL ||
1426 os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1427 ret = 1; /* PBC overlap */
1428 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1429 MACSTR " and " MACSTR,
1430 MAC2STR(selected->bssid),
1431 MAC2STR(bss->bssid));
1436 /* TODO: verify that this is reasonable dual-band situation */
1441 wpabuf_free(wps_ie);
1447 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1449 struct wpa_bss *bss;
1450 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1452 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1455 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1457 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1460 if (wps_is_selected_pbc_registrar(ie))
1462 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1464 else if (wps_is_selected_pin_registrar(ie))
1472 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1474 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1476 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1478 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1482 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1484 struct wpa_ssid *ssid;
1486 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1487 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1495 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1498 struct wpabuf *wps_ie;
1501 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1505 ret = wps_attr_text(wps_ie, buf, end);
1506 wpabuf_free(wps_ie);
1511 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1513 #ifdef CONFIG_WPS_ER
1514 if (wpa_s->wps_er) {
1515 wps_er_refresh(wpa_s->wps_er);
1518 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1519 if (wpa_s->wps_er == NULL)
1522 #else /* CONFIG_WPS_ER */
1524 #endif /* CONFIG_WPS_ER */
1528 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1530 #ifdef CONFIG_WPS_ER
1531 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1532 wpa_s->wps_er = NULL;
1533 #endif /* CONFIG_WPS_ER */
1538 #ifdef CONFIG_WPS_ER
1539 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1540 const char *uuid, const char *pin)
1545 if (os_strcmp(uuid, "any") == 0)
1547 else if (uuid_str2bin(uuid, u))
1549 return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1551 (const u8 *) pin, os_strlen(pin), 300);
1555 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1559 if (uuid_str2bin(uuid, u))
1561 return wps_er_pbc(wpa_s->wps_er, u);
1565 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1570 if (uuid_str2bin(uuid, u))
1572 return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1577 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1581 struct wpa_ssid *ssid;
1582 struct wps_credential cred;
1584 if (uuid_str2bin(uuid, u))
1586 ssid = wpa_config_get_network(wpa_s->conf, id);
1587 if (ssid == NULL || ssid->ssid == NULL)
1590 os_memset(&cred, 0, sizeof(cred));
1591 if (ssid->ssid_len > 32)
1593 os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len);
1594 cred.ssid_len = ssid->ssid_len;
1595 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1596 cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1597 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1598 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1599 cred.encr_type = WPS_ENCR_AES;
1601 cred.encr_type = WPS_ENCR_TKIP;
1602 if (ssid->passphrase) {
1603 cred.key_len = os_strlen(ssid->passphrase);
1604 if (cred.key_len >= 64)
1606 os_memcpy(cred.key, ssid->passphrase, cred.key_len);
1607 } else if (ssid->psk_set) {
1609 os_memcpy(cred.key, ssid->psk, 32);
1613 cred.auth_type = WPS_AUTH_OPEN;
1614 cred.encr_type = WPS_ENCR_NONE;
1616 return wps_er_set_config(wpa_s->wps_er, u, &cred);
1620 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1621 const char *pin, struct wps_new_ap_settings *settings)
1624 struct wps_credential cred;
1627 if (uuid_str2bin(uuid, u))
1629 if (settings->ssid_hex == NULL || settings->auth == NULL ||
1630 settings->encr == NULL || settings->key_hex == NULL)
1633 os_memset(&cred, 0, sizeof(cred));
1634 len = os_strlen(settings->ssid_hex);
1635 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1636 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1638 cred.ssid_len = len / 2;
1640 len = os_strlen(settings->key_hex);
1641 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1642 hexstr2bin(settings->key_hex, cred.key, len / 2))
1644 cred.key_len = len / 2;
1646 if (os_strcmp(settings->auth, "OPEN") == 0)
1647 cred.auth_type = WPS_AUTH_OPEN;
1648 else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1649 cred.auth_type = WPS_AUTH_WPAPSK;
1650 else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1651 cred.auth_type = WPS_AUTH_WPA2PSK;
1655 if (os_strcmp(settings->encr, "NONE") == 0)
1656 cred.encr_type = WPS_ENCR_NONE;
1657 else if (os_strcmp(settings->encr, "WEP") == 0)
1658 cred.encr_type = WPS_ENCR_WEP;
1659 else if (os_strcmp(settings->encr, "TKIP") == 0)
1660 cred.encr_type = WPS_ENCR_TKIP;
1661 else if (os_strcmp(settings->encr, "CCMP") == 0)
1662 cred.encr_type = WPS_ENCR_AES;
1666 return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
1667 os_strlen(pin), &cred);
1671 #ifdef CONFIG_WPS_NFC
1672 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
1673 int ndef, const char *uuid)
1681 if (uuid_str2bin(uuid, u))
1684 ret = wps_er_nfc_config_token(wpa_s->wps_er, u);
1687 tmp = ndef_build_wifi(ret);
1696 #endif /* CONFIG_WPS_NFC */
1699 static int callbacks_pending = 0;
1701 static void wpas_wps_terminate_cb(void *ctx)
1703 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1704 if (--callbacks_pending <= 0)
1707 #endif /* CONFIG_WPS_ER */
1710 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1712 #ifdef CONFIG_WPS_ER
1713 if (wpa_s->wps_er) {
1714 callbacks_pending++;
1715 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1716 wpa_s->wps_er = NULL;
1719 #endif /* CONFIG_WPS_ER */
1724 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1726 struct wpa_ssid *ssid;
1728 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1729 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1737 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1739 struct wps_context *wps = wpa_s->wps;
1744 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1745 wps->config_methods = wps_config_methods_str2bin(
1746 wpa_s->conf->config_methods);
1747 if ((wps->config_methods &
1748 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1749 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1750 wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1751 "config methods are not allowed at the "
1753 wps->config_methods &= ~WPS_CONFIG_LABEL;
1756 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1757 wps->dev.config_methods = wps->config_methods;
1759 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1760 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1763 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
1764 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1765 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1766 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
1769 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
1770 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1772 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1773 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1775 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1776 wpas_wps_set_uuid(wpa_s, wps);
1778 if (wpa_s->conf->changed_parameters &
1779 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
1780 /* Update pointers to make sure they refer current values */
1781 wps->dev.device_name = wpa_s->conf->device_name;
1782 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1783 wps->dev.model_name = wpa_s->conf->model_name;
1784 wps->dev.model_number = wpa_s->conf->model_number;
1785 wps->dev.serial_number = wpa_s->conf->serial_number;
1790 #ifdef CONFIG_WPS_NFC
1792 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
1794 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
1795 &wpa_s->conf->wps_nfc_dh_pubkey,
1796 &wpa_s->conf->wps_nfc_dh_privkey,
1797 &wpa_s->conf->wps_nfc_dev_pw);
1801 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *bssid)
1803 struct wps_context *wps = wpa_s->wps;
1804 char pw[32 * 2 + 1];
1806 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
1807 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
1808 wpa_s->conf->wps_nfc_dev_pw == NULL)
1811 dh5_free(wps->dh_ctx);
1812 wpabuf_free(wps->dh_pubkey);
1813 wpabuf_free(wps->dh_privkey);
1814 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
1815 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
1816 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
1818 wpabuf_free(wps->dh_pubkey);
1819 wps->dh_pubkey = NULL;
1820 wpabuf_free(wps->dh_privkey);
1821 wps->dh_privkey = NULL;
1824 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
1825 if (wps->dh_ctx == NULL)
1828 wpa_snprintf_hex_uppercase(pw, sizeof(pw),
1829 wpabuf_head(wpa_s->conf->wps_nfc_dev_pw),
1830 wpabuf_len(wpa_s->conf->wps_nfc_dev_pw));
1831 return wpas_wps_start_pin(wpa_s, bssid, pw, 0,
1832 wpa_s->conf->wps_nfc_dev_pw_id);
1836 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
1837 struct wps_parse_attr *attr)
1839 if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
1842 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
1845 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
1846 "based on the received credential added");
1847 wpa_s->normal_scans = 0;
1848 wpa_supplicant_reinit_autoscan(wpa_s);
1849 wpa_s->disconnected = 0;
1850 wpa_s->reassociate = 1;
1851 wpa_supplicant_req_scan(wpa_s, 0, 0);
1857 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
1858 struct wps_parse_attr *attr)
1860 return wps_registrar_add_nfc_password_token(
1861 wpa_s->wps->registrar, attr->oob_dev_password,
1862 attr->oob_dev_password_len);
1866 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
1867 const struct wpabuf *wps)
1869 struct wps_parse_attr attr;
1871 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
1873 if (wps_parse_msg(wps, &attr)) {
1874 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
1879 return wpas_wps_use_cred(wpa_s, &attr);
1881 #ifdef CONFIG_WPS_ER
1882 if (attr.oob_dev_password)
1883 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
1884 #endif /* CONFIG_WPS_ER */
1886 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
1891 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
1892 const struct wpabuf *data)
1894 const struct wpabuf *wps = data;
1895 struct wpabuf *tmp = NULL;
1898 if (wpabuf_len(data) < 4)
1901 if (*wpabuf_head_u8(data) != 0x10) {
1902 /* Assume this contains full NDEF record */
1903 tmp = ndef_parse_wifi(data);
1905 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
1911 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
1916 #endif /* CONFIG_WPS_NFC */