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[thirdparty/hostap.git] / wpa_supplicant / wps_supplicant.c
CommitLineData
fa201b69
JM		 1/*
2 * wpa_supplicant / WPS integration
6fa81a3b 3 * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
fa201b69
JM		 4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#include "includes.h"
16
17#include "common.h"
03da66bd
JM		 18#include "eloop.h"
19#include "uuid.h"
20#include "crypto/dh_group5.h"
90973fb2
JM		 21#include "common/ieee802_11_defs.h"
22#include "common/ieee802_11_common.h"
23#include "common/wpa_common.h"
03da66bd
JM		 24#include "common/wpa_ctrl.h"
25#include "eap_common/eap_wsc_common.h"
b01c18a8 26#include "eap_peer/eap.h"
03da66bd
JM		 27#include "rsn_supp/wpa.h"
28#include "config.h"
fa201b69 29#include "wpa_supplicant_i.h"
2d5b792d 30#include "driver_i.h"
8bac466b 31#include "notify.h"
a6099152 32#include "blacklist.h"
59f2caa9 33#include "bss.h"
fa201b69
JM		 34#include "wps_supplicant.h"
35
f7e54365 36
a6099152 37#define WPS_PIN_SCAN_IGNORE_SEL_REG 3
fa201b69 38
fcc60db4 39static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
469fc3a4 40static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
fcc60db4
JM		 41
42
fa201b69
JM		 43int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
44{
a6099152
JM		 45 if (!wpa_s->wps_success &&
46 wpa_s->current_ssid &&
47 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
48 const u8 *bssid = wpa_s->bssid;
49 if (is_zero_ether_addr(bssid))
50 bssid = wpa_s->pending_bssid;
51
52 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
53 " did not succeed - continue trying to find "
54 "suitable AP", MAC2STR(bssid));
55 wpa_blacklist_add(wpa_s, bssid);
56
57 wpa_supplicant_deauthenticate(wpa_s,
58 WLAN_REASON_DEAUTH_LEAVING);
59 wpa_s->reassociate = 1;
60 wpa_supplicant_req_scan(wpa_s,
61 wpa_s->blacklist_cleared ? 5 : 0, 0);
62 wpa_s->blacklist_cleared = 0;
63 return 1;
64 }
65
fcc60db4
JM		 66 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
67
fa201b69
JM		 68 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
69 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
70 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
71 "try to associate with the received credential");
72 wpa_supplicant_deauthenticate(wpa_s,
73 WLAN_REASON_DEAUTH_LEAVING);
74 wpa_s->reassociate = 1;
75 wpa_supplicant_req_scan(wpa_s, 0, 0);
76 return 1;
77 }
78
47662164
JM		 79 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
80 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
81 "for external credential processing");
82 wpas_clear_wps(wpa_s);
83 wpa_supplicant_deauthenticate(wpa_s,
84 WLAN_REASON_DEAUTH_LEAVING);
85 return 1;
86 }
87
fa201b69
JM		 88 return 0;
89}
90
91
7cc1b6c9
JM		 92static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
93 struct wpa_ssid *ssid,
94 const struct wps_credential *cred)
95{
96 struct wpa_driver_capa capa;
59f2caa9 97 struct wpa_bss *bss;
7cc1b6c9
JM		 98 const u8 *ie;
99 struct wpa_ie_data adv;
100 int wpa2 = 0, ccmp = 0;
101
102 /*
103 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
104 * case they are configured for mixed mode operation (WPA+WPA2 and
105 * TKIP+CCMP). Try to use scan results to figure out whether the AP
106 * actually supports stronger security and select that if the client
107 * has support for it, too.
108 */
109
110 if (wpa_drv_get_capa(wpa_s, &capa))
111 return; /* Unknown what driver supports */
112
59f2caa9
JM		 113 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
114 if (bss == NULL) {
115 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
116 "table - use credential as-is");
7cc1b6c9
JM		 117 return;
118 }
119
59f2caa9
JM		 120 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
121
122 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
7cc1b6c9
JM		 123 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
124 wpa2 = 1;
125 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
126 ccmp = 1;
127 } else {
59f2caa9 128 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
7cc1b6c9
JM		 129 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
130 adv.pairwise_cipher & WPA_CIPHER_CCMP)
131 ccmp = 1;
132 }
133
134 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
135 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
136 /*
137 * TODO: This could be the initial AP configuration and the
138 * Beacon contents could change shortly. Should request a new
139 * scan and delay addition of the network until the updated
140 * scan results are available.
141 */
142 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
143 "support - use credential as-is");
144 return;
145 }
146
147 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
148 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
149 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
150 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
151 "based on scan results");
152 if (wpa_s->conf->ap_scan == 1)
153 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
154 else
155 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
156 }
157
158 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
159 (ssid->proto & WPA_PROTO_WPA) &&
160 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
161 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
162 "based on scan results");
163 if (wpa_s->conf->ap_scan == 1)
164 ssid->proto |= WPA_PROTO_RSN;
165 else
166 ssid->proto = WPA_PROTO_RSN;
167 }
168}
169
170
bcbbc7af
JM		 171static int wpa_supplicant_wps_cred(void *ctx,
172 const struct wps_credential *cred)
fa201b69
JM		 173{
174 struct wpa_supplicant *wpa_s = ctx;
175 struct wpa_ssid *ssid = wpa_s->current_ssid;
522b5b6e 176 u8 key_idx = 0;
49eba5f8 177 u16 auth_type;
fa201b69 178
47662164
JM		 179 if ((wpa_s->conf->wps_cred_processing == 1 ||
180 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
181 size_t blen = cred->cred_attr_len * 2 + 1;
182 char *buf = os_malloc(blen);
183 if (buf) {
184 wpa_snprintf_hex(buf, blen,
185 cred->cred_attr, cred->cred_attr_len);
186 wpa_msg(wpa_s, MSG_INFO, "%s%s",
187 WPS_EVENT_CRED_RECEIVED, buf);
188 os_free(buf);
189 }
8bac466b
JM		 190
191 wpas_notify_wps_credential(wpa_s, cred);
47662164
JM		 192 } else
193 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
fa201b69 194
eca6e0a9
JM		 195 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
196 cred->cred_attr, cred->cred_attr_len);
197
47662164
JM		 198 if (wpa_s->conf->wps_cred_processing == 1)
199 return 0;
200
73267b9c
JM		 201 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
202 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
203 cred->auth_type);
204 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
205 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
206 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
207 cred->key, cred->key_len);
208 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
209 MAC2STR(cred->mac_addr));
210
49eba5f8
JM		 211 auth_type = cred->auth_type;
212 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
213 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
214 "auth_type into WPA2PSK");
215 auth_type = WPS_AUTH_WPA2PSK;
216 }
217
218 if (auth_type != WPS_AUTH_OPEN &&
219 auth_type != WPS_AUTH_SHARED &&
220 auth_type != WPS_AUTH_WPAPSK &&
221 auth_type != WPS_AUTH_WPA2PSK) {
f286077d 222 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
49eba5f8
JM		 223 "unsupported authentication type 0x%x",
224 auth_type);
f286077d
JM		 225 return 0;
226 }
227
fa201b69
JM		 228 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
229 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
230 "on the received credential");
231 os_free(ssid->eap.identity);
232 ssid->eap.identity = NULL;
233 ssid->eap.identity_len = 0;
234 os_free(ssid->eap.phase1);
235 ssid->eap.phase1 = NULL;
236 os_free(ssid->eap.eap_methods);
237 ssid->eap.eap_methods = NULL;
238 } else {
239 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
240 "received credential");
241 ssid = wpa_config_add_network(wpa_s->conf);
242 if (ssid == NULL)
243 return -1;
8bac466b 244 wpas_notify_network_added(wpa_s, ssid);
fa201b69
JM		 245 }
246
247 wpa_config_set_network_defaults(ssid);
248
249 os_free(ssid->ssid);
250 ssid->ssid = os_malloc(cred->ssid_len);
251 if (ssid->ssid) {
252 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
253 ssid->ssid_len = cred->ssid_len;
254 }
255
256 switch (cred->encr_type) {
257 case WPS_ENCR_NONE:
fa201b69
JM		 258 break;
259 case WPS_ENCR_WEP:
4b195a1b
AT		 260 if (cred->key_len <= 0)
261 break;
262 if (cred->key_len != 5 && cred->key_len != 13 &&
263 cred->key_len != 10 && cred->key_len != 26) {
264 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
265 "%lu", (unsigned long) cred->key_len);
266 return -1;
267 }
522b5b6e 268 if (cred->key_idx > NUM_WEP_KEYS) {
4b195a1b
AT		 269 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
270 cred->key_idx);
271 return -1;
272 }
522b5b6e
AT		 273 if (cred->key_idx)
274 key_idx = cred->key_idx - 1;
4b195a1b
AT		 275 if (cred->key_len == 10 || cred->key_len == 26) {
276 if (hexstr2bin((char *) cred->key,
277 ssid->wep_key[key_idx],
278 cred->key_len / 2) < 0) {
279 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
280 "%d", key_idx);
281 return -1;
282 }
283 ssid->wep_key_len[key_idx] = cred->key_len / 2;
284 } else {
285 os_memcpy(ssid->wep_key[key_idx], cred->key,
fa201b69 286 cred->key_len);
4b195a1b 287 ssid->wep_key_len[key_idx] = cred->key_len;
fa201b69 288 }
4b195a1b 289 ssid->wep_tx_keyidx = key_idx;
fa201b69
JM		 290 break;
291 case WPS_ENCR_TKIP:
292 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
fa201b69
JM		 293 break;
294 case WPS_ENCR_AES:
295 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
fa201b69
JM		 296 break;
297 }
298
49eba5f8 299 switch (auth_type) {
fa201b69
JM		 300 case WPS_AUTH_OPEN:
301 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
302 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
303 ssid->proto = 0;
304 break;
305 case WPS_AUTH_SHARED:
306 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
307 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
308 ssid->proto = 0;
309 break;
310 case WPS_AUTH_WPAPSK:
311 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
312 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
313 ssid->proto = WPA_PROTO_WPA;
314 break;
315 case WPS_AUTH_WPA:
316 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
317 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
318 ssid->proto = WPA_PROTO_WPA;
319 break;
320 case WPS_AUTH_WPA2:
321 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
322 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
323 ssid->proto = WPA_PROTO_RSN;
324 break;
325 case WPS_AUTH_WPA2PSK:
326 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
327 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
328 ssid->proto = WPA_PROTO_RSN;
329 break;
330 }
331
332 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
333 if (cred->key_len == 2 * PMK_LEN) {
334 if (hexstr2bin((const char *) cred->key, ssid->psk,
335 PMK_LEN)) {
336 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
337 "Key");
338 return -1;
339 }
340 ssid->psk_set = 1;
341 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
342 os_free(ssid->passphrase);
343 ssid->passphrase = os_malloc(cred->key_len + 1);
344 if (ssid->passphrase == NULL)
345 return -1;
346 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
347 ssid->passphrase[cred->key_len] = '\0';
348 wpa_config_update_psk(ssid);
349 } else {
350 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
351 "length %lu",
352 (unsigned long) cred->key_len);
353 return -1;
354 }
355 }
356
7cc1b6c9
JM		 357 wpas_wps_security_workaround(wpa_s, ssid, cred);
358
fa201b69
JM		 359#ifndef CONFIG_NO_CONFIG_WRITE
360 if (wpa_s->conf->update_config &&
361 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
362 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
363 return -1;
364 }
365#endif /* CONFIG_NO_CONFIG_WRITE */
366
367 return 0;
368}
369
370
4b68290e
JM		 371static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
372 struct wps_event_m2d *m2d)
373{
374 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
375 "dev_password_id=%d config_error=%d",
376 m2d->dev_password_id, m2d->config_error);
8bac466b 377 wpas_notify_wps_event_m2d(wpa_s, m2d);
4b68290e
JM		 378}
379
380
469fc3a4
JM		 381static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
382 struct wps_event_fail *fail)
383{
384 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL "msg=%d", fail->msg);
385 wpas_clear_wps(wpa_s);
8bac466b 386 wpas_notify_wps_event_fail(wpa_s, fail);
469fc3a4
JM		 387}
388
389
ad5302a1
JM		 390static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
391{
392 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
a6099152 393 wpa_s->wps_success = 1;
8bac466b 394 wpas_notify_wps_event_success(wpa_s);
ad5302a1
JM		 395}
396
397
b78bc3a3
JM		 398static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
399 struct wps_event_er_ap *ap)
400{
401 char uuid_str[100];
ed45947e 402 char dev_type[WPS_DEV_TYPE_BUFSIZE];
e694b344 403
b78bc3a3 404 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
e694b344 405 if (ap->pri_dev_type)
ed45947e
JM		 406 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
407 sizeof(dev_type));
e694b344
JM		 408 else
409 dev_type[0] = '\0';
410
411 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
412 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
413 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
b78bc3a3
JM		 414 ap->friendly_name ? ap->friendly_name : "",
415 ap->manufacturer ? ap->manufacturer : "",
416 ap->model_description ? ap->model_description : "",
417 ap->model_name ? ap->model_name : "",
418 ap->manufacturer_url ? ap->manufacturer_url : "",
419 ap->model_url ? ap->model_url : "");
420}
421
422
423static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
424 struct wps_event_er_ap *ap)
425{
426 char uuid_str[100];
427 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
428 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
429}
430
431
432static void wpa_supplicant_wps_event_er_enrollee_add(
433 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
434{
435 char uuid_str[100];
ed45947e 436 char dev_type[WPS_DEV_TYPE_BUFSIZE];
b78bc3a3
JM		 437
438 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
439 if (enrollee->pri_dev_type)
ed45947e
JM		 440 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
441 sizeof(dev_type));
b78bc3a3
JM		 442 else
443 dev_type[0] = '\0';
444
445 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
446 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
447 "|%s|%s|%s|%s|%s|",
448 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
449 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
450 enrollee->dev_name ? enrollee->dev_name : "",
451 enrollee->manufacturer ? enrollee->manufacturer : "",
452 enrollee->model_name ? enrollee->model_name : "",
453 enrollee->model_number ? enrollee->model_number : "",
454 enrollee->serial_number ? enrollee->serial_number : "");
455}
456
457
458static void wpa_supplicant_wps_event_er_enrollee_remove(
459 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
460{
461 char uuid_str[100];
462 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
463 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
464 uuid_str, MAC2STR(enrollee->mac_addr));
465}
466
467
4b68290e
JM		 468static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
469 union wps_event_data *data)
470{
471 struct wpa_supplicant *wpa_s = ctx;
472 switch (event) {
473 case WPS_EV_M2D:
474 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
475 break;
469fc3a4
JM		 476 case WPS_EV_FAIL:
477 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
478 break;
ad5302a1
JM		 479 case WPS_EV_SUCCESS:
480 wpa_supplicant_wps_event_success(wpa_s);
481 break;
3b2cf800
JM		 482 case WPS_EV_PWD_AUTH_FAIL:
483 break;
63330c68
OK		 484 case WPS_EV_PBC_OVERLAP:
485 break;
486 case WPS_EV_PBC_TIMEOUT:
487 break;
b78bc3a3
JM		 488 case WPS_EV_ER_AP_ADD:
489 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
490 break;
491 case WPS_EV_ER_AP_REMOVE:
492 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
493 break;
494 case WPS_EV_ER_ENROLLEE_ADD:
495 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
496 &data->enrollee);
497 break;
498 case WPS_EV_ER_ENROLLEE_REMOVE:
499 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
500 &data->enrollee);
501 break;
4b68290e
JM		 502 }
503}
504
505
f90c86d4 506enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
fa201b69 507{
b01c18a8
JM		 508 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
509 eap_is_wps_pin_enrollee(&ssid->eap))
510 return WPS_REQ_ENROLLEE;
511 else
512 return WPS_REQ_REGISTRAR;
fa201b69 513}
116654ce
JM		 514
515
fcc60db4
JM		 516static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
517{
518 int id;
8bac466b 519 struct wpa_ssid *ssid, *remove_ssid = NULL;
fcc60db4
JM		 520
521 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
522
523 /* Remove any existing WPS network from configuration */
524 ssid = wpa_s->conf->ssid;
525 while (ssid) {
f0477201 526 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
8bac466b 527 if (ssid == wpa_s->current_ssid) {
f0477201 528 wpa_s->current_ssid = NULL;
8bac466b
JM		 529 if (ssid != NULL)
530 wpas_notify_network_changed(wpa_s);
531 }
fcc60db4 532 id = ssid->id;
8bac466b 533 remove_ssid = ssid;
f0477201 534 } else
fcc60db4
JM		 535 id = -1;
536 ssid = ssid->next;
8bac466b
JM		 537 if (id >= 0) {
538 wpas_notify_network_removed(wpa_s, remove_ssid);
fcc60db4 539 wpa_config_remove_network(wpa_s->conf, id);
8bac466b 540 }
fcc60db4
JM		 541 }
542}
543
544
545static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
546{
547 struct wpa_supplicant *wpa_s = eloop_ctx;
a6099152
JM		 548 wpa_printf(MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
549 "out");
fcc60db4
JM		 550 wpas_clear_wps(wpa_s);
551}
552
553
554static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
555 int registrar, const u8 *bssid)
556{
557 struct wpa_ssid *ssid;
558
559 ssid = wpa_config_add_network(wpa_s->conf);
560 if (ssid == NULL)
561 return NULL;
8bac466b 562 wpas_notify_network_added(wpa_s, ssid);
fcc60db4
JM		 563 wpa_config_set_network_defaults(ssid);
564 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
565 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
566 wpa_config_set(ssid, "identity", registrar ?
567 "\"" WSC_ID_REGISTRAR "\"" :
568 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
8bac466b 569 wpas_notify_network_removed(wpa_s, ssid);
fcc60db4
JM		 570 wpa_config_remove_network(wpa_s->conf, ssid->id);
571 return NULL;
572 }
573
574 if (bssid) {
59f2caa9 575 struct wpa_bss *bss;
f7e54365 576 int count = 0;
fcc60db4
JM		 577
578 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
24c23d1b 579 ssid->bssid_set = 1;
fcc60db4 580
59f2caa9
JM		 581 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
582 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
fcc60db4
JM		 583 continue;
584
fcc60db4 585 os_free(ssid->ssid);
59f2caa9 586 ssid->ssid = os_malloc(bss->ssid_len);
fcc60db4
JM		 587 if (ssid->ssid == NULL)
588 break;
59f2caa9
JM		 589 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
590 ssid->ssid_len = bss->ssid_len;
f7e54365
JM		 591 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
592 "scan results",
593 ssid->ssid, ssid->ssid_len);
594 count++;
595 }
596
597 if (count > 1) {
598 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
599 "for the AP; use wildcard");
600 os_free(ssid->ssid);
601 ssid->ssid = NULL;
602 ssid->ssid_len = 0;
fcc60db4
JM		 603 }
604 }
605
606 return ssid;
607}
608
609
610static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
611 struct wpa_ssid *selected)
612{
613 struct wpa_ssid *ssid;
614
615 /* Mark all other networks disabled and trigger reassociation */
616 ssid = wpa_s->conf->ssid;
617 while (ssid) {
8bac466b 618 int was_disabled = ssid->disabled;
fcc60db4 619 ssid->disabled = ssid != selected;
8bac466b
JM		 620 if (was_disabled != ssid->disabled)
621 wpas_notify_network_enabled_changed(wpa_s, ssid);
fcc60db4
JM		 622 ssid = ssid->next;
623 }
624 wpa_s->disconnected = 0;
625 wpa_s->reassociate = 1;
a6099152
JM		 626 wpa_s->scan_runs = 0;
627 wpa_s->wps_success = 0;
628 wpa_s->blacklist_cleared = 0;
fcc60db4
JM		 629 wpa_supplicant_req_scan(wpa_s, 0, 0);
630}
631
632
633int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
634{
635 struct wpa_ssid *ssid;
636 wpas_clear_wps(wpa_s);
637 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
638 if (ssid == NULL)
639 return -1;
640 wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
641 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
642 wpa_s, NULL);
643 wpas_wps_reassoc(wpa_s, ssid);
644 return 0;
645}
646
647
648int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
649 const char *pin)
650{
651 struct wpa_ssid *ssid;
46bdb83a 652 char val[128];
fcc60db4
JM		 653 unsigned int rpin = 0;
654
655 wpas_clear_wps(wpa_s);
656 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
657 if (ssid == NULL)
658 return -1;
659 if (pin)
660 os_snprintf(val, sizeof(val), "\"pin=%s\"", pin);
661 else {
662 rpin = wps_generate_pin();
663 os_snprintf(val, sizeof(val), "\"pin=%08d\"", rpin);
664 }
665 wpa_config_set(ssid, "phase1", val, 0);
666 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
667 wpa_s, NULL);
668 wpas_wps_reassoc(wpa_s, ssid);
669 return rpin;
670}
671
672
116f7bb0 673#ifdef CONFIG_WPS_OOB
46bdb83a 674int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
e1ee6b60 675 char *path, char *method, char *name)
46bdb83a
MH		 676{
677 struct wps_context *wps = wpa_s->wps;
7cbf51bb 678 struct oob_device_data *oob_dev;
46bdb83a 679
7cbf51bb
JM		 680 oob_dev = wps_get_oob_device(device_type);
681 if (oob_dev == NULL)
46bdb83a 682 return -1;
7cbf51bb 683 oob_dev->device_path = path;
e1ee6b60 684 oob_dev->device_name = name;
46bdb83a
MH		 685 wps->oob_conf.oob_method = wps_get_oob_method(method);
686
d5e2b2d2
JM		 687 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
688 /*
689 * Use pre-configured DH keys in order to be able to write the
690 * key hash into the OOB file.
691 */
692 wpabuf_free(wps->dh_pubkey);
693 wpabuf_free(wps->dh_privkey);
694 wps->dh_privkey = NULL;
f042122a
JM		 695 wps->dh_pubkey = NULL;
696 dh5_free(wps->dh_ctx);
697 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
d5e2b2d2 698 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
f042122a 699 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
d5e2b2d2
JM		 700 wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
701 "Diffie-Hellman handshake");
702 return -1;
703 }
704 }
705
46bdb83a
MH		 706 if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
707 wpas_clear_wps(wpa_s);
708
7cbf51bb 709 if (wps_process_oob(wps, oob_dev, 0) < 0)
46bdb83a
MH		 710 return -1;
711
712 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
713 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
714 wpas_wps_start_pin(wpa_s, NULL,
715 wpabuf_head(wps->oob_conf.dev_password)) < 0)
716 return -1;
717
718 return 0;
719}
116f7bb0 720#endif /* CONFIG_WPS_OOB */
46bdb83a
MH		 721
722
fcc60db4 723int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
52eb293d 724 const char *pin, struct wps_new_ap_settings *settings)
fcc60db4
JM		 725{
726 struct wpa_ssid *ssid;
52eb293d
JM		 727 char val[200];
728 char *pos, *end;
729 int res;
fcc60db4
JM		 730
731 if (!pin)
732 return -1;
733 wpas_clear_wps(wpa_s);
734 ssid = wpas_wps_add_network(wpa_s, 1, bssid);
735 if (ssid == NULL)
736 return -1;
52eb293d
JM		 737 pos = val;
738 end = pos + sizeof(val);
739 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
740 if (res < 0 || res >= end - pos)
741 return -1;
742 pos += res;
743 if (settings) {
744 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
745 "new_encr=%s new_key=%s",
746 settings->ssid_hex, settings->auth,
747 settings->encr, settings->key_hex);
748 if (res < 0 || res >= end - pos)
749 return -1;
750 pos += res;
751 }
752 res = os_snprintf(pos, end - pos, "\"");
753 if (res < 0 || res >= end - pos)
754 return -1;
fcc60db4
JM		 755 wpa_config_set(ssid, "phase1", val, 0);
756 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
757 wpa_s, NULL);
758 wpas_wps_reassoc(wpa_s, ssid);
759 return 0;
760}
761
762
c5adf528
JM		 763static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
764 size_t psk_len)
765{
766 wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
767 "STA " MACSTR, MAC2STR(mac_addr));
768 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
769
770 /* TODO */
771
772 return 0;
773}
774
775
776static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
777 const struct wps_device_data *dev)
778{
779 char uuid[40], txt[400];
780 int len;
96750ea5 781 char devtype[WPS_DEV_TYPE_BUFSIZE];
c5adf528
JM		 782 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
783 return;
784 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
785 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
96750ea5 786 " [%s|%s|%s|%s|%s|%s]",
c5adf528
JM		 787 uuid, MAC2STR(dev->mac_addr), dev->device_name,
788 dev->manufacturer, dev->model_name,
789 dev->model_number, dev->serial_number,
96750ea5
JM		 790 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
791 sizeof(devtype)));
c5adf528
JM		 792 if (len > 0 && len < (int) sizeof(txt))
793 wpa_printf(MSG_INFO, "%s", txt);
794}
795
796
72df2f5f
JM		 797static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
798 u16 sel_reg_config_methods)
799{
800#ifdef CONFIG_WPS_ER
801 struct wpa_supplicant *wpa_s = ctx;
802
803 if (wpa_s->wps_er == NULL)
804 return;
805 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
806 sel_reg_config_methods);
807#endif /* CONFIG_WPS_ER */
808}
809
810
116654ce
JM		 811int wpas_wps_init(struct wpa_supplicant *wpa_s)
812{
813 struct wps_context *wps;
c5adf528 814 struct wps_registrar_config rcfg;
116654ce
JM		 815
816 wps = os_zalloc(sizeof(*wps));
817 if (wps == NULL)
818 return -1;
819
820 wps->cred_cb = wpa_supplicant_wps_cred;
4b68290e 821 wps->event_cb = wpa_supplicant_wps_event;
116654ce
JM		 822 wps->cb_ctx = wpa_s;
823
3c0b7aa4
JM		 824 wps->dev.device_name = wpa_s->conf->device_name;
825 wps->dev.manufacturer = wpa_s->conf->manufacturer;
826 wps->dev.model_name = wpa_s->conf->model_name;
827 wps->dev.model_number = wpa_s->conf->model_number;
828 wps->dev.serial_number = wpa_s->conf->serial_number;
c0e4dd9e
JM		 829 wps->config_methods =
830 wps_config_methods_str2bin(wpa_s->conf->config_methods);
96750ea5
JM		 831 if (wpa_s->conf->device_type &&
832 wps_dev_type_str2bin(wpa_s->conf->device_type,
833 wps->dev.pri_dev_type) < 0) {
834 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
835 os_free(wps);
836 return -1;
3c0b7aa4
JM		 837 }
838 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
839 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */
398cfbf6 840 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
79da74a2
JM		 841 if (is_nil_uuid(wpa_s->conf->uuid)) {
842 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
843 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
844 wps->uuid, WPS_UUID_LEN);
845 } else
846 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
116654ce 847
c5adf528
JM		 848 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
849 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
850
851 os_memset(&rcfg, 0, sizeof(rcfg));
852 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
853 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
72df2f5f 854 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
c5adf528
JM		 855 rcfg.cb_ctx = wpa_s;
856
857 wps->registrar = wps_registrar_init(wps, &rcfg);
858 if (wps->registrar == NULL) {
859 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
860 os_free(wps);
861 return -1;
862 }
863
116654ce
JM		 864 wpa_s->wps = wps;
865
866 return 0;
867}
868
869
870void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
871{
fcc60db4
JM		 872 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
873
116654ce
JM		 874 if (wpa_s->wps == NULL)
875 return;
876
a6b63078 877#ifdef CONFIG_WPS_ER
1a1bf008 878 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
a6b63078
JM		 879 wpa_s->wps_er = NULL;
880#endif /* CONFIG_WPS_ER */
881
c5adf528 882 wps_registrar_deinit(wpa_s->wps->registrar);
46bdb83a
MH		 883 wpabuf_free(wpa_s->wps->dh_pubkey);
884 wpabuf_free(wpa_s->wps->dh_privkey);
885 wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
886 wpabuf_free(wpa_s->wps->oob_conf.dev_password);
116654ce
JM		 887 os_free(wpa_s->wps->network_key);
888 os_free(wpa_s->wps);
889 wpa_s->wps = NULL;
890}
351f09a2
JM		 891
892
a6099152
JM		 893int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
894 struct wpa_ssid *ssid, struct wpa_scan_res *bss)
351f09a2
JM		 895{
896 struct wpabuf *wps_ie;
897
898 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
899 return -1;
900
901 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
902 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
903 if (!wps_ie) {
904 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
905 return 0;
906 }
907
908 if (!wps_is_selected_pbc_registrar(wps_ie)) {
909 wpa_printf(MSG_DEBUG, " skip - WPS AP "
910 "without active PBC Registrar");
911 wpabuf_free(wps_ie);
912 return 0;
913 }
914
915 /* TODO: overlap detection */
916 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
917 "(Active PBC)");
918 wpabuf_free(wps_ie);
919 return 1;
920 }
921
922 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
923 if (!wps_ie) {
924 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
925 return 0;
926 }
927
a6099152
JM		 928 /*
929 * Start with WPS APs that advertise active PIN Registrar and
930 * allow any WPS AP after third scan since some APs do not set
931 * Selected Registrar attribute properly when using external
932 * Registrar.
933 */
351f09a2 934 if (!wps_is_selected_pin_registrar(wps_ie)) {
a6099152
JM		 935 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
936 wpa_printf(MSG_DEBUG, " skip - WPS AP "
937 "without active PIN Registrar");
938 wpabuf_free(wps_ie);
939 return 0;
940 }
941 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
942 } else {
943 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
944 "(Active PIN)");
351f09a2 945 }
351f09a2
JM		 946 wpabuf_free(wps_ie);
947 return 1;
948 }
949
950 if (wps_ie) {
951 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
952 wpabuf_free(wps_ie);
953 return 1;
954 }
955
956 return -1;
957}
958
959
a6099152
JM		 960int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
961 struct wpa_ssid *ssid,
351f09a2
JM		 962 struct wpa_scan_res *bss)
963{
964 struct wpabuf *wps_ie = NULL;
965 int ret = 0;
966
967 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
968 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
969 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
970 /* allow wildcard SSID for WPS PBC */
971 ret = 1;
972 }
973 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
974 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
a6099152
JM		 975 if (wps_ie &&
976 (wps_is_selected_pin_registrar(wps_ie) ||
977 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
351f09a2
JM		 978 /* allow wildcard SSID for WPS PIN */
979 ret = 1;
980 }
981 }
982
24c23d1b
JM		 983 if (!ret && ssid->bssid_set &&
984 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
985 /* allow wildcard SSID due to hardcoded BSSID match */
986 ret = 1;
987 }
988
351f09a2
JM		 989 wpabuf_free(wps_ie);
990
991 return ret;
992}
993
994
995int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
6fa81a3b 996 struct wpa_bss *selected, struct wpa_ssid *ssid)
351f09a2
JM		 997{
998 const u8 *sel_uuid, *uuid;
351f09a2
JM		 999 struct wpabuf *wps_ie;
1000 int ret = 0;
6fa81a3b 1001 struct wpa_bss *bss;
351f09a2
JM		 1002
1003 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1004 return 0;
1005
1006 /* Make sure that only one AP is in active PBC mode */
6fa81a3b 1007 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
351f09a2
JM		 1008 if (wps_ie)
1009 sel_uuid = wps_get_uuid_e(wps_ie);
1010 else
1011 sel_uuid = NULL;
351f09a2 1012
6fa81a3b 1013 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
351f09a2
JM		 1014 struct wpabuf *ie;
1015 if (bss == selected)
1016 continue;
6fa81a3b 1017 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
351f09a2
JM		 1018 if (!ie)
1019 continue;
1020 if (!wps_is_selected_pbc_registrar(ie)) {
1021 wpabuf_free(ie);
1022 continue;
1023 }
1024 uuid = wps_get_uuid_e(ie);
44cd430f
JM		 1025 if (sel_uuid == NULL || uuid == NULL ||
1026 os_memcmp(sel_uuid, uuid, 16) != 0) {
351f09a2
JM		 1027 ret = 1; /* PBC overlap */
1028 wpabuf_free(ie);
1029 break;
1030 }
1031
1032 /* TODO: verify that this is reasonable dual-band situation */
484957ae
JM		 1033
1034 wpabuf_free(ie);
351f09a2
JM		 1035 }
1036
1037 wpabuf_free(wps_ie);
1038
1039 return ret;
1040}
a524f05e
JM		 1041
1042
1043void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1044{
6fa81a3b 1045 struct wpa_bss *bss;
a524f05e
JM		 1046
1047 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1048 return;
1049
6fa81a3b 1050 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
a524f05e 1051 struct wpabuf *ie;
6fa81a3b 1052 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
a524f05e
JM		 1053 if (!ie)
1054 continue;
1055 if (wps_is_selected_pbc_registrar(ie))
332d630a
JM		 1056 wpa_msg_ctrl(wpa_s, MSG_INFO,
1057 WPS_EVENT_AP_AVAILABLE_PBC);
a524f05e 1058 else if (wps_is_selected_pin_registrar(ie))
332d630a
JM		 1059 wpa_msg_ctrl(wpa_s, MSG_INFO,
1060 WPS_EVENT_AP_AVAILABLE_PIN);
a524f05e 1061 else
332d630a
JM		 1062 wpa_msg_ctrl(wpa_s, MSG_INFO,
1063 WPS_EVENT_AP_AVAILABLE);
a524f05e
JM		 1064 wpabuf_free(ie);
1065 break;
1066 }
1067}
24c23d1b
JM		 1068
1069
1070int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1071{
1072 struct wpa_ssid *ssid;
1073
1074 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1075 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1076 return 1;
1077 }
1078
1079 return 0;
1080}
611ed491
JM		 1081
1082
1083int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1084 char *end)
1085{
1086 struct wpabuf *wps_ie;
1087 int ret;
1088
1089 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1090 if (wps_ie == NULL)
1091 return 0;
1092
1093 ret = wps_attr_text(wps_ie, buf, end);
1094 wpabuf_free(wps_ie);
1095 return ret;
1096}
e9bcfebf
JM		 1097
1098
1099int wpas_wps_er_start(struct wpa_supplicant *wpa_s)
1100{
1101#ifdef CONFIG_WPS_ER
1102 if (wpa_s->wps_er) {
b3f371ca 1103 wps_er_refresh(wpa_s->wps_er);
e9bcfebf
JM		 1104 return 0;
1105 }
1106 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname);
1107 if (wpa_s->wps_er == NULL)
1108 return -1;
1109 return 0;
1110#else /* CONFIG_WPS_ER */
1111 return 0;
1112#endif /* CONFIG_WPS_ER */
1113}
1114
1115
1116int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1117{
1118#ifdef CONFIG_WPS_ER
1a1bf008 1119 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
e9bcfebf
JM		 1120 wpa_s->wps_er = NULL;
1121#endif /* CONFIG_WPS_ER */
1122 return 0;
1123}
72df2f5f
JM		 1124
1125
1126#ifdef CONFIG_WPS_ER
1127int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const char *uuid,
1128 const char *pin)
1129{
1130 u8 u[UUID_LEN];
1131 int any = 0;
1132
1133 if (os_strcmp(uuid, "any") == 0)
1134 any = 1;
1135 else if (uuid_str2bin(uuid, u))
1136 return -1;
1137 return wps_registrar_add_pin(wpa_s->wps->registrar, any ? NULL : u,
1138 (const u8 *) pin, os_strlen(pin), 300);
1139}
564cd7fa
JM		 1140
1141
1142int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1143{
1144 u8 u[UUID_LEN];
1145
1146 if (uuid_str2bin(uuid, u))
1147 return -1;
1148 return wps_er_pbc(wpa_s->wps_er, u);
1149}
e64dcfd5
JM		 1150
1151
1152int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1153 const char *pin)
1154{
1155 u8 u[UUID_LEN];
1156
1157 if (uuid_str2bin(uuid, u))
1158 return -1;
1159 return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1160 os_strlen(pin));
1161}
1a1bf008
JM		 1162
1163
1164static void wpas_wps_terminate_cb(void *ctx)
1165{
1166 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1167 eloop_terminate();
1168}
1169#endif /* CONFIG_WPS_ER */
1170
1171
1172int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1173{
1174#ifdef CONFIG_WPS_ER
1175 if (wpa_s->wps_er) {
1176 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1177 wpa_s->wps_er = NULL;
1178 return 1;
1179 }
72df2f5f 1180#endif /* CONFIG_WPS_ER */
1a1bf008
JM		 1181 return 0;
1182}
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