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 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
271 "received credential");
272 ssid = wpa_config_add_network(wpa_s->conf);
275 wpas_notify_network_added(wpa_s, ssid);
278 wpa_config_set_network_defaults(ssid);
281 ssid->ssid = os_malloc(cred->ssid_len);
283 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
284 ssid->ssid_len = cred->ssid_len;
287 switch (cred->encr_type) {
291 if (cred->key_len <= 0)
293 if (cred->key_len != 5 && cred->key_len != 13 &&
294 cred->key_len != 10 && cred->key_len != 26) {
295 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
296 "%lu", (unsigned long) cred->key_len);
299 if (cred->key_idx > NUM_WEP_KEYS) {
300 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
305 key_idx = cred->key_idx - 1;
306 if (cred->key_len == 10 || cred->key_len == 26) {
307 if (hexstr2bin((char *) cred->key,
308 ssid->wep_key[key_idx],
309 cred->key_len / 2) < 0) {
310 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
314 ssid->wep_key_len[key_idx] = cred->key_len / 2;
316 os_memcpy(ssid->wep_key[key_idx], cred->key,
318 ssid->wep_key_len[key_idx] = cred->key_len;
320 ssid->wep_tx_keyidx = key_idx;
323 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
326 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
332 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
333 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
335 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
337 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
338 "id=%d - Credentials for an open "
339 "network disabled by default - use "
340 "'select_network %d' to enable",
344 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
346 case WPS_AUTH_SHARED:
347 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
348 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
351 case WPS_AUTH_WPAPSK:
352 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
353 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
354 ssid->proto = WPA_PROTO_WPA;
357 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
358 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
359 ssid->proto = WPA_PROTO_WPA;
362 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
363 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
364 ssid->proto = WPA_PROTO_RSN;
366 case WPS_AUTH_WPA2PSK:
367 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
368 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
369 ssid->proto = WPA_PROTO_RSN;
373 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
374 if (cred->key_len == 2 * PMK_LEN) {
375 if (hexstr2bin((const char *) cred->key, ssid->psk,
377 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
382 ssid->export_keys = 1;
383 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
384 os_free(ssid->passphrase);
385 ssid->passphrase = os_malloc(cred->key_len + 1);
386 if (ssid->passphrase == NULL)
388 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
389 ssid->passphrase[cred->key_len] = '\0';
390 wpa_config_update_psk(ssid);
391 ssid->export_keys = 1;
393 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
395 (unsigned long) cred->key_len);
400 wpas_wps_security_workaround(wpa_s, ssid, cred);
402 #ifndef CONFIG_NO_CONFIG_WRITE
403 if (wpa_s->conf->update_config &&
404 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
405 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
408 #endif /* CONFIG_NO_CONFIG_WRITE */
415 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
417 struct wpa_supplicant *wpa_s = eloop_ctx;
418 wpas_p2p_notif_pbc_overlap(wpa_s);
420 #endif /* CONFIG_P2P */
423 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
424 struct wps_event_m2d *m2d)
426 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
427 "dev_password_id=%d config_error=%d",
428 m2d->dev_password_id, m2d->config_error);
429 wpas_notify_wps_event_m2d(wpa_s, m2d);
431 if (wpa_s->parent && wpa_s->parent != wpa_s) {
432 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
433 "dev_password_id=%d config_error=%d",
434 m2d->dev_password_id, m2d->config_error);
436 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
438 * Notify P2P from eloop timeout to avoid issues with the
439 * interface getting removed while processing a message.
441 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
444 #endif /* CONFIG_P2P */
448 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
449 "No Error", /* WPS_EI_NO_ERROR */
450 "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
451 "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
454 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
455 struct wps_event_fail *fail)
457 if (fail->error_indication > 0 &&
458 fail->error_indication < NUM_WPS_EI_VALUES) {
459 wpa_msg(wpa_s, MSG_INFO,
460 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
461 fail->msg, fail->config_error, fail->error_indication,
462 wps_event_fail_reason[fail->error_indication]);
463 if (wpa_s->parent && wpa_s->parent != wpa_s)
464 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
465 "msg=%d config_error=%d reason=%d (%s)",
466 fail->msg, fail->config_error,
467 fail->error_indication,
468 wps_event_fail_reason[fail->error_indication]);
470 wpa_msg(wpa_s, MSG_INFO,
471 WPS_EVENT_FAIL "msg=%d config_error=%d",
472 fail->msg, fail->config_error);
473 if (wpa_s->parent && wpa_s->parent != wpa_s)
474 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
475 "msg=%d config_error=%d",
476 fail->msg, fail->config_error);
478 wpas_clear_wps(wpa_s);
479 wpas_notify_wps_event_fail(wpa_s, fail);
481 wpas_p2p_wps_failed(wpa_s, fail);
482 #endif /* CONFIG_P2P */
486 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
488 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
489 wpa_s->wps_success = 1;
490 wpas_notify_wps_event_success(wpa_s);
492 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
493 #endif /* CONFIG_P2P */
497 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
498 struct wps_event_er_ap *ap)
501 char dev_type[WPS_DEV_TYPE_BUFSIZE];
503 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
504 if (ap->pri_dev_type)
505 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
510 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
511 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
512 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
513 ap->friendly_name ? ap->friendly_name : "",
514 ap->manufacturer ? ap->manufacturer : "",
515 ap->model_description ? ap->model_description : "",
516 ap->model_name ? ap->model_name : "",
517 ap->manufacturer_url ? ap->manufacturer_url : "",
518 ap->model_url ? ap->model_url : "");
522 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
523 struct wps_event_er_ap *ap)
526 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
527 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
531 static void wpa_supplicant_wps_event_er_enrollee_add(
532 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
535 char dev_type[WPS_DEV_TYPE_BUFSIZE];
537 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
538 if (enrollee->pri_dev_type)
539 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
544 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
545 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
547 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
548 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
549 enrollee->dev_name ? enrollee->dev_name : "",
550 enrollee->manufacturer ? enrollee->manufacturer : "",
551 enrollee->model_name ? enrollee->model_name : "",
552 enrollee->model_number ? enrollee->model_number : "",
553 enrollee->serial_number ? enrollee->serial_number : "");
557 static void wpa_supplicant_wps_event_er_enrollee_remove(
558 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
561 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
562 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
563 uuid_str, MAC2STR(enrollee->mac_addr));
567 static void wpa_supplicant_wps_event_er_ap_settings(
568 struct wpa_supplicant *wpa_s,
569 struct wps_event_er_ap_settings *ap_settings)
573 const struct wps_credential *cred = ap_settings->cred;
576 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
577 if (cred->key_len >= 8 && cred->key_len <= 64) {
578 os_memcpy(key_str, cred->key, cred->key_len);
579 key_str[cred->key_len] = '\0';
583 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
584 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
585 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
586 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
588 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
589 cred->auth_type, cred->encr_type, key_str);
593 static void wpa_supplicant_wps_event_er_set_sel_reg(
594 struct wpa_supplicant *wpa_s,
595 struct wps_event_er_set_selected_registrar *ev)
599 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
601 case WPS_ER_SET_SEL_REG_START:
602 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
603 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
604 "sel_reg_config_methods=0x%x",
605 uuid_str, ev->sel_reg, ev->dev_passwd_id,
606 ev->sel_reg_config_methods);
608 case WPS_ER_SET_SEL_REG_DONE:
609 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
610 "uuid=%s state=DONE", uuid_str);
612 case WPS_ER_SET_SEL_REG_FAILED:
613 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
614 "uuid=%s state=FAILED", uuid_str);
620 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
621 union wps_event_data *data)
623 struct wpa_supplicant *wpa_s = ctx;
626 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
629 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
632 wpa_supplicant_wps_event_success(wpa_s);
634 case WPS_EV_PWD_AUTH_FAIL:
636 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
637 wpa_supplicant_ap_pwd_auth_fail(wpa_s);
638 #endif /* CONFIG_AP */
640 case WPS_EV_PBC_OVERLAP:
642 case WPS_EV_PBC_TIMEOUT:
644 case WPS_EV_ER_AP_ADD:
645 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
647 case WPS_EV_ER_AP_REMOVE:
648 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
650 case WPS_EV_ER_ENROLLEE_ADD:
651 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
654 case WPS_EV_ER_ENROLLEE_REMOVE:
655 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
658 case WPS_EV_ER_AP_SETTINGS:
659 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
662 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
663 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
666 case WPS_EV_AP_PIN_SUCCESS:
672 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
674 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
675 eap_is_wps_pin_enrollee(&ssid->eap))
676 return WPS_REQ_ENROLLEE;
678 return WPS_REQ_REGISTRAR;
682 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
685 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
687 prev_current = wpa_s->current_ssid;
689 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
691 /* Remove any existing WPS network from configuration */
692 ssid = wpa_s->conf->ssid;
694 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
695 if (ssid == wpa_s->current_ssid) {
696 wpa_s->current_ssid = NULL;
698 wpas_notify_network_changed(wpa_s);
706 if (prev_current == remove_ssid) {
707 wpa_sm_set_config(wpa_s->wpa, NULL);
708 eapol_sm_notify_config(wpa_s->eapol, NULL,
711 wpas_notify_network_removed(wpa_s, remove_ssid);
712 wpa_config_remove_network(wpa_s->conf, id);
718 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
720 struct wpa_supplicant *wpa_s = eloop_ctx;
721 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
723 wpas_clear_wps(wpa_s);
727 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
728 int registrar, const u8 *bssid)
730 struct wpa_ssid *ssid;
732 ssid = wpa_config_add_network(wpa_s->conf);
735 wpas_notify_network_added(wpa_s, ssid);
736 wpa_config_set_network_defaults(ssid);
738 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
739 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
740 wpa_config_set(ssid, "identity", registrar ?
741 "\"" WSC_ID_REGISTRAR "\"" :
742 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
743 wpas_notify_network_removed(wpa_s, ssid);
744 wpa_config_remove_network(wpa_s->conf, ssid->id);
752 #endif /* CONFIG_P2P */
754 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
758 * Note: With P2P, the SSID may change at the time the WPS
759 * provisioning is started, so better not filter the AP based
760 * on the current SSID in the scan results.
763 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
764 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
768 ssid->ssid = os_malloc(bss->ssid_len);
769 if (ssid->ssid == NULL)
771 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
772 ssid->ssid_len = bss->ssid_len;
773 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
775 ssid->ssid, ssid->ssid_len);
780 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
781 "for the AP; use wildcard");
786 #endif /* CONFIG_P2P */
793 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
794 struct wpa_ssid *selected, const u8 *bssid)
796 struct wpa_ssid *ssid;
799 wpa_s->known_wps_freq = 0;
801 bss = wpa_bss_get_bssid(wpa_s, bssid);
802 if (bss && bss->freq > 0) {
803 wpa_s->known_wps_freq = 1;
804 wpa_s->wps_freq = bss->freq;
808 if (wpa_s->current_ssid)
809 wpa_supplicant_deauthenticate(
810 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
812 /* Mark all other networks disabled and trigger reassociation */
813 ssid = wpa_s->conf->ssid;
815 int was_disabled = ssid->disabled;
817 * In case the network object corresponds to a persistent group
818 * then do not send out network disabled signal. In addition,
819 * do not change disabled status of persistent network objects
820 * from 2 to 1 should we connect to another network.
822 if (was_disabled != 2) {
823 ssid->disabled = ssid != selected;
824 if (was_disabled != ssid->disabled)
825 wpas_notify_network_enabled_changed(wpa_s,
830 wpa_s->disconnected = 0;
831 wpa_s->reassociate = 1;
832 wpa_s->scan_runs = 0;
833 wpa_s->normal_scans = 0;
834 wpa_s->wps_success = 0;
835 wpa_s->blacklist_cleared = 0;
836 wpa_supplicant_req_scan(wpa_s, 0, 0);
840 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
843 struct wpa_ssid *ssid;
844 wpas_clear_wps(wpa_s);
845 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
849 ssid->p2p_group = p2p_group;
851 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
852 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
854 ssid->ssid_len = wpa_s->go_params->ssid_len;
855 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
857 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
858 "SSID", ssid->ssid, ssid->ssid_len);
861 #endif /* CONFIG_P2P */
862 wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
863 if (wpa_s->wps_fragment_size)
864 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
865 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
867 wpas_wps_reassoc(wpa_s, ssid, bssid);
872 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
873 const char *pin, int p2p_group, u16 dev_pw_id)
875 struct wpa_ssid *ssid;
877 unsigned int rpin = 0;
879 wpas_clear_wps(wpa_s);
880 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
884 ssid->p2p_group = p2p_group;
886 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
887 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
889 ssid->ssid_len = wpa_s->go_params->ssid_len;
890 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
892 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
893 "SSID", ssid->ssid, ssid->ssid_len);
896 #endif /* CONFIG_P2P */
898 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
901 rpin = wps_generate_pin();
902 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
905 wpa_config_set(ssid, "phase1", val, 0);
906 if (wpa_s->wps_fragment_size)
907 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
908 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
910 wpas_wps_reassoc(wpa_s, ssid, bssid);
915 /* Cancel the wps pbc/pin requests */
916 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
919 if (wpa_s->ap_iface) {
920 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
921 return wpa_supplicant_ap_wps_cancel(wpa_s);
923 #endif /* CONFIG_AP */
925 if (wpa_s->wpa_state == WPA_SCANNING ||
926 wpa_s->wpa_state == WPA_DISCONNECTED) {
927 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
928 wpa_supplicant_cancel_scan(wpa_s);
929 wpas_clear_wps(wpa_s);
930 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
931 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
933 wpa_supplicant_deauthenticate(wpa_s,
934 WLAN_REASON_DEAUTH_LEAVING);
935 wpas_clear_wps(wpa_s);
942 #ifdef CONFIG_WPS_OOB
943 int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
944 char *path, char *method, char *name)
946 struct wps_context *wps = wpa_s->wps;
947 struct oob_device_data *oob_dev;
949 oob_dev = wps_get_oob_device(device_type);
952 oob_dev->device_path = path;
953 oob_dev->device_name = name;
954 wps->oob_conf.oob_method = wps_get_oob_method(method);
956 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
958 * Use pre-configured DH keys in order to be able to write the
959 * key hash into the OOB file.
961 wpabuf_free(wps->dh_pubkey);
962 wpabuf_free(wps->dh_privkey);
963 wps->dh_privkey = NULL;
964 wps->dh_pubkey = NULL;
965 dh5_free(wps->dh_ctx);
966 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
967 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
968 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
969 wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
970 "Diffie-Hellman handshake");
975 if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
976 wpas_clear_wps(wpa_s);
978 if (wps_process_oob(wps, oob_dev, 0) < 0)
981 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
982 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
983 wpas_wps_start_pin(wpa_s, NULL,
984 wpabuf_head(wps->oob_conf.dev_password), 0,
990 #endif /* CONFIG_WPS_OOB */
993 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
994 const char *pin, struct wps_new_ap_settings *settings)
996 struct wpa_ssid *ssid;
1003 wpas_clear_wps(wpa_s);
1004 ssid = wpas_wps_add_network(wpa_s, 1, bssid);
1007 ssid->temporary = 1;
1009 end = pos + sizeof(val);
1010 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1011 if (res < 0 || res >= end - pos)
1015 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1016 "new_encr=%s new_key=%s",
1017 settings->ssid_hex, settings->auth,
1018 settings->encr, settings->key_hex);
1019 if (res < 0 || res >= end - pos)
1023 res = os_snprintf(pos, end - pos, "\"");
1024 if (res < 0 || res >= end - pos)
1026 wpa_config_set(ssid, "phase1", val, 0);
1027 if (wpa_s->wps_fragment_size)
1028 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1029 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1031 wpas_wps_reassoc(wpa_s, ssid, bssid);
1036 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1039 wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1040 "STA " MACSTR, MAC2STR(mac_addr));
1041 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1049 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1050 const struct wps_device_data *dev)
1052 char uuid[40], txt[400];
1054 char devtype[WPS_DEV_TYPE_BUFSIZE];
1055 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1057 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1058 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1059 " [%s|%s|%s|%s|%s|%s]",
1060 uuid, MAC2STR(dev->mac_addr), dev->device_name,
1061 dev->manufacturer, dev->model_name,
1062 dev->model_number, dev->serial_number,
1063 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1065 if (len > 0 && len < (int) sizeof(txt))
1066 wpa_printf(MSG_INFO, "%s", txt);
1070 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1071 u16 sel_reg_config_methods)
1073 #ifdef CONFIG_WPS_ER
1074 struct wpa_supplicant *wpa_s = ctx;
1076 if (wpa_s->wps_er == NULL)
1078 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1079 "dev_password_id=%u sel_reg_config_methods=0x%x",
1080 sel_reg, dev_passwd_id, sel_reg_config_methods);
1081 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1082 sel_reg_config_methods);
1083 #endif /* CONFIG_WPS_ER */
1087 static u16 wps_fix_config_methods(u16 config_methods)
1090 if ((config_methods &
1091 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1092 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1093 wpa_printf(MSG_INFO, "WPS: Converting display to "
1094 "virtual_display for WPS 2.0 compliance");
1095 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1097 if ((config_methods &
1098 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1099 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1100 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1101 "virtual_push_button for WPS 2.0 compliance");
1102 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1104 #endif /* CONFIG_WPS2 */
1106 return config_methods;
1110 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1111 struct wps_context *wps)
1113 wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1114 if (is_nil_uuid(wpa_s->conf->uuid)) {
1115 struct wpa_supplicant *first;
1116 first = wpa_s->global->ifaces;
1117 while (first && first->next)
1118 first = first->next;
1119 if (first && first != wpa_s) {
1120 if (wps != wpa_s->global->ifaces->wps)
1121 os_memcpy(wps->uuid,
1122 wpa_s->global->ifaces->wps->uuid,
1124 wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1125 "interface", wps->uuid, WPS_UUID_LEN);
1127 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1128 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1129 "address", wps->uuid, WPS_UUID_LEN);
1132 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1133 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1134 wps->uuid, WPS_UUID_LEN);
1139 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1140 struct wps_context *wps)
1142 wpabuf_free(wps->dev.vendor_ext_m1);
1143 wps->dev.vendor_ext_m1 = NULL;
1145 if (wpa_s->conf->wps_vendor_ext_m1) {
1146 wps->dev.vendor_ext_m1 =
1147 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1148 if (!wps->dev.vendor_ext_m1) {
1149 wpa_printf(MSG_ERROR, "WPS: Cannot "
1150 "allocate memory for vendor_ext_m1");
1156 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1158 struct wps_context *wps;
1159 struct wps_registrar_config rcfg;
1160 struct hostapd_hw_modes *modes;
1163 wps = os_zalloc(sizeof(*wps));
1167 wps->cred_cb = wpa_supplicant_wps_cred;
1168 wps->event_cb = wpa_supplicant_wps_event;
1169 wps->cb_ctx = wpa_s;
1171 wps->dev.device_name = wpa_s->conf->device_name;
1172 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1173 wps->dev.model_name = wpa_s->conf->model_name;
1174 wps->dev.model_number = wpa_s->conf->model_number;
1175 wps->dev.serial_number = wpa_s->conf->serial_number;
1176 wps->config_methods =
1177 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1178 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1179 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1180 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1181 "methods are not allowed at the same time");
1185 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1186 wps->dev.config_methods = wps->config_methods;
1187 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1190 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1191 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1192 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1194 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1196 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1197 modes = wpa_s->hw.modes;
1199 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1200 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1201 modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1202 wps->dev.rf_bands |= WPS_RF_24GHZ;
1203 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1204 wps->dev.rf_bands |= WPS_RF_50GHZ;
1207 if (wps->dev.rf_bands == 0) {
1209 * Default to claiming support for both bands if the driver
1210 * does not provide support for fetching supported bands.
1212 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1214 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1215 wpas_wps_set_uuid(wpa_s, wps);
1217 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1218 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1220 os_memset(&rcfg, 0, sizeof(rcfg));
1221 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1222 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1223 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1224 rcfg.cb_ctx = wpa_s;
1226 wps->registrar = wps_registrar_init(wps, &rcfg);
1227 if (wps->registrar == NULL) {
1228 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1239 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1241 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1243 if (wpa_s->wps == NULL)
1246 #ifdef CONFIG_WPS_ER
1247 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1248 wpa_s->wps_er = NULL;
1249 #endif /* CONFIG_WPS_ER */
1251 wps_registrar_deinit(wpa_s->wps->registrar);
1252 wpabuf_free(wpa_s->wps->dh_pubkey);
1253 wpabuf_free(wpa_s->wps->dh_privkey);
1254 wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
1255 wpabuf_free(wpa_s->wps->oob_conf.dev_password);
1256 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
1257 os_free(wpa_s->wps->network_key);
1258 os_free(wpa_s->wps);
1263 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1264 struct wpa_ssid *ssid, struct wpa_scan_res *bss)
1266 struct wpabuf *wps_ie;
1268 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1271 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1272 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1274 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1278 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1279 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1280 "without active PBC Registrar");
1281 wpabuf_free(wps_ie);
1285 /* TODO: overlap detection */
1286 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1288 wpabuf_free(wps_ie);
1292 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1294 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1299 * Start with WPS APs that advertise our address as an
1300 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1301 * allow any WPS AP after couple of scans since some APs do not
1302 * set Selected Registrar attribute properly when using
1303 * external Registrar.
1305 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1306 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1307 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1308 "without active PIN Registrar");
1309 wpabuf_free(wps_ie);
1312 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1314 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1315 "(Authorized MAC or Active PIN)");
1317 wpabuf_free(wps_ie);
1322 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1323 wpabuf_free(wps_ie);
1331 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1332 struct wpa_ssid *ssid,
1333 struct wpa_scan_res *bss)
1335 struct wpabuf *wps_ie = NULL;
1338 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1339 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1340 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1341 /* allow wildcard SSID for WPS PBC */
1344 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1345 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1347 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1348 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1349 /* allow wildcard SSID for WPS PIN */
1354 if (!ret && ssid->bssid_set &&
1355 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1356 /* allow wildcard SSID due to hardcoded BSSID match */
1360 #ifdef CONFIG_WPS_STRICT
1362 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1365 if (bss->beacon_ie_len) {
1366 struct wpabuf *bcn_wps;
1367 bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
1368 bss, WPS_IE_VENDOR_TYPE);
1369 if (bcn_wps == NULL) {
1370 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1371 "missing from AP Beacon");
1374 if (wps_validate_beacon(wps_ie) < 0)
1376 wpabuf_free(bcn_wps);
1380 #endif /* CONFIG_WPS_STRICT */
1382 wpabuf_free(wps_ie);
1388 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1389 struct wpa_bss *selected, struct wpa_ssid *ssid)
1391 const u8 *sel_uuid, *uuid;
1392 struct wpabuf *wps_ie;
1394 struct wpa_bss *bss;
1396 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1399 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1400 "present in scan results; selected BSSID " MACSTR,
1401 MAC2STR(selected->bssid));
1403 /* Make sure that only one AP is in active PBC mode */
1404 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1406 sel_uuid = wps_get_uuid_e(wps_ie);
1407 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1408 sel_uuid, UUID_LEN);
1410 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1415 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1417 if (bss == selected)
1419 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1422 if (!wps_is_selected_pbc_registrar(ie)) {
1426 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1427 MACSTR, MAC2STR(bss->bssid));
1428 uuid = wps_get_uuid_e(ie);
1429 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1431 if (sel_uuid == NULL || uuid == NULL ||
1432 os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1433 ret = 1; /* PBC overlap */
1434 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1435 MACSTR " and " MACSTR,
1436 MAC2STR(selected->bssid),
1437 MAC2STR(bss->bssid));
1442 /* TODO: verify that this is reasonable dual-band situation */
1447 wpabuf_free(wps_ie);
1453 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1455 struct wpa_bss *bss;
1456 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1458 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1461 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1463 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1466 if (wps_is_selected_pbc_registrar(ie))
1468 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1470 else if (wps_is_selected_pin_registrar(ie))
1478 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1480 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1482 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1484 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1488 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1490 struct wpa_ssid *ssid;
1492 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1493 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1501 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1504 struct wpabuf *wps_ie;
1507 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1511 ret = wps_attr_text(wps_ie, buf, end);
1512 wpabuf_free(wps_ie);
1517 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1519 #ifdef CONFIG_WPS_ER
1520 if (wpa_s->wps_er) {
1521 wps_er_refresh(wpa_s->wps_er);
1524 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1525 if (wpa_s->wps_er == NULL)
1528 #else /* CONFIG_WPS_ER */
1530 #endif /* CONFIG_WPS_ER */
1534 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1536 #ifdef CONFIG_WPS_ER
1537 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1538 wpa_s->wps_er = NULL;
1539 #endif /* CONFIG_WPS_ER */
1544 #ifdef CONFIG_WPS_ER
1545 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1546 const char *uuid, const char *pin)
1551 if (os_strcmp(uuid, "any") == 0)
1553 else if (uuid_str2bin(uuid, u))
1555 return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1557 (const u8 *) pin, os_strlen(pin), 300);
1561 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1565 if (uuid_str2bin(uuid, u))
1567 return wps_er_pbc(wpa_s->wps_er, u);
1571 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1576 if (uuid_str2bin(uuid, u))
1578 return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1583 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1587 struct wpa_ssid *ssid;
1588 struct wps_credential cred;
1590 if (uuid_str2bin(uuid, u))
1592 ssid = wpa_config_get_network(wpa_s->conf, id);
1593 if (ssid == NULL || ssid->ssid == NULL)
1596 os_memset(&cred, 0, sizeof(cred));
1597 if (ssid->ssid_len > 32)
1599 os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len);
1600 cred.ssid_len = ssid->ssid_len;
1601 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1602 cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1603 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1604 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1605 cred.encr_type = WPS_ENCR_AES;
1607 cred.encr_type = WPS_ENCR_TKIP;
1608 if (ssid->passphrase) {
1609 cred.key_len = os_strlen(ssid->passphrase);
1610 if (cred.key_len >= 64)
1612 os_memcpy(cred.key, ssid->passphrase, cred.key_len);
1613 } else if (ssid->psk_set) {
1615 os_memcpy(cred.key, ssid->psk, 32);
1619 cred.auth_type = WPS_AUTH_OPEN;
1620 cred.encr_type = WPS_ENCR_NONE;
1622 return wps_er_set_config(wpa_s->wps_er, u, &cred);
1626 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1627 const char *pin, struct wps_new_ap_settings *settings)
1630 struct wps_credential cred;
1633 if (uuid_str2bin(uuid, u))
1635 if (settings->ssid_hex == NULL || settings->auth == NULL ||
1636 settings->encr == NULL || settings->key_hex == NULL)
1639 os_memset(&cred, 0, sizeof(cred));
1640 len = os_strlen(settings->ssid_hex);
1641 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1642 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1644 cred.ssid_len = len / 2;
1646 len = os_strlen(settings->key_hex);
1647 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1648 hexstr2bin(settings->key_hex, cred.key, len / 2))
1650 cred.key_len = len / 2;
1652 if (os_strcmp(settings->auth, "OPEN") == 0)
1653 cred.auth_type = WPS_AUTH_OPEN;
1654 else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1655 cred.auth_type = WPS_AUTH_WPAPSK;
1656 else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1657 cred.auth_type = WPS_AUTH_WPA2PSK;
1661 if (os_strcmp(settings->encr, "NONE") == 0)
1662 cred.encr_type = WPS_ENCR_NONE;
1663 else if (os_strcmp(settings->encr, "WEP") == 0)
1664 cred.encr_type = WPS_ENCR_WEP;
1665 else if (os_strcmp(settings->encr, "TKIP") == 0)
1666 cred.encr_type = WPS_ENCR_TKIP;
1667 else if (os_strcmp(settings->encr, "CCMP") == 0)
1668 cred.encr_type = WPS_ENCR_AES;
1672 return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
1673 os_strlen(pin), &cred);
1677 #ifdef CONFIG_WPS_NFC
1678 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
1679 int ndef, const char *uuid)
1687 if (uuid_str2bin(uuid, u))
1690 ret = wps_er_nfc_config_token(wpa_s->wps_er, u);
1693 tmp = ndef_build_wifi(ret);
1702 #endif /* CONFIG_WPS_NFC */
1705 static int callbacks_pending = 0;
1707 static void wpas_wps_terminate_cb(void *ctx)
1709 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1710 if (--callbacks_pending <= 0)
1713 #endif /* CONFIG_WPS_ER */
1716 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1718 #ifdef CONFIG_WPS_ER
1719 if (wpa_s->wps_er) {
1720 callbacks_pending++;
1721 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1722 wpa_s->wps_er = NULL;
1725 #endif /* CONFIG_WPS_ER */
1730 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1732 struct wpa_ssid *ssid;
1734 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1735 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1743 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1745 struct wps_context *wps = wpa_s->wps;
1750 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1751 wps->config_methods = wps_config_methods_str2bin(
1752 wpa_s->conf->config_methods);
1753 if ((wps->config_methods &
1754 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1755 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1756 wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1757 "config methods are not allowed at the "
1759 wps->config_methods &= ~WPS_CONFIG_LABEL;
1762 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1764 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1765 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1768 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
1769 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1770 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1771 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
1774 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
1775 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1777 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1778 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1780 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1781 wpas_wps_set_uuid(wpa_s, wps);
1783 if (wpa_s->conf->changed_parameters &
1784 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
1785 /* Update pointers to make sure they refer current values */
1786 wps->dev.device_name = wpa_s->conf->device_name;
1787 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1788 wps->dev.model_name = wpa_s->conf->model_name;
1789 wps->dev.model_number = wpa_s->conf->model_number;
1790 wps->dev.serial_number = wpa_s->conf->serial_number;
1795 #ifdef CONFIG_WPS_NFC
1797 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
1799 struct wpabuf *priv = NULL, *pub = NULL, *pw;
1803 pw = wpabuf_alloc(WPS_OOB_DEVICE_PASSWORD_LEN);
1807 if (random_get_bytes(wpabuf_put(pw, WPS_OOB_DEVICE_PASSWORD_LEN),
1808 WPS_OOB_DEVICE_PASSWORD_LEN)) {
1813 dh_ctx = dh5_init(&priv, &pub);
1814 if (dh_ctx == NULL) {
1820 wpa_s->conf->wps_nfc_dev_pw_id = 0x10 + os_random() % 0xfff0;
1821 wpabuf_free(wpa_s->conf->wps_nfc_dh_pubkey);
1822 wpa_s->conf->wps_nfc_dh_pubkey = pub;
1823 wpabuf_free(wpa_s->conf->wps_nfc_dh_privkey);
1824 wpa_s->conf->wps_nfc_dh_privkey = priv;
1825 wpabuf_free(wpa_s->conf->wps_nfc_dev_pw);
1826 wpa_s->conf->wps_nfc_dev_pw = pw;
1828 ret = wps_build_nfc_pw_token(wpa_s->conf->wps_nfc_dev_pw_id,
1829 wpa_s->conf->wps_nfc_dh_pubkey,
1830 wpa_s->conf->wps_nfc_dev_pw);
1833 tmp = ndef_build_wifi(ret);
1844 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *bssid)
1846 struct wps_context *wps = wpa_s->wps;
1847 char pw[32 * 2 + 1];
1849 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
1850 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
1851 wpa_s->conf->wps_nfc_dev_pw == NULL)
1854 dh5_free(wps->dh_ctx);
1855 wpabuf_free(wps->dh_pubkey);
1856 wpabuf_free(wps->dh_privkey);
1857 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
1858 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
1859 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
1861 wpabuf_free(wps->dh_pubkey);
1862 wps->dh_pubkey = NULL;
1863 wpabuf_free(wps->dh_privkey);
1864 wps->dh_privkey = NULL;
1867 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
1868 if (wps->dh_ctx == NULL)
1871 wpa_snprintf_hex_uppercase(pw, sizeof(pw),
1872 wpabuf_head(wpa_s->conf->wps_nfc_dev_pw),
1873 wpabuf_len(wpa_s->conf->wps_nfc_dev_pw));
1874 return wpas_wps_start_pin(wpa_s, bssid, pw, 0,
1875 wpa_s->conf->wps_nfc_dev_pw_id);
1879 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
1880 struct wps_parse_attr *attr)
1882 if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
1885 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
1888 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
1889 "based on the received credential added");
1890 wpa_s->normal_scans = 0;
1891 wpa_supplicant_reinit_autoscan(wpa_s);
1892 wpa_s->disconnected = 0;
1893 wpa_s->reassociate = 1;
1894 wpa_supplicant_req_scan(wpa_s, 0, 0);
1900 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
1901 struct wps_parse_attr *attr)
1903 return wps_registrar_add_nfc_password_token(
1904 wpa_s->wps->registrar, attr->oob_dev_password,
1905 attr->oob_dev_password_len);
1909 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
1910 const struct wpabuf *wps)
1912 struct wps_parse_attr attr;
1914 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
1916 if (wps_parse_msg(wps, &attr)) {
1917 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
1922 return wpas_wps_use_cred(wpa_s, &attr);
1924 #ifdef CONFIG_WPS_ER
1925 if (attr.oob_dev_password)
1926 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
1927 #endif /* CONFIG_WPS_ER */
1929 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
1934 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
1935 const struct wpabuf *data)
1937 const struct wpabuf *wps = data;
1938 struct wpabuf *tmp = NULL;
1941 if (wpabuf_len(data) < 4)
1944 if (*wpabuf_head_u8(data) != 0x10) {
1945 /* Assume this contains full NDEF record */
1946 tmp = ndef_parse_wifi(data);
1948 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
1954 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
1959 #endif /* CONFIG_WPS_NFC */