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[thirdparty/hostap.git] / wpa_supplicant / wps_supplicant.c
CommitLineData
fa201b69
JM		 1/*
2 * wpa_supplicant / WPS integration
3 * Copyright (c) 2008, Jouni Malinen <j@w1.fi>
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"
fa201b69
JM		 33#include "wps_supplicant.h"
34
a6099152 35#define WPS_PIN_SCAN_IGNORE_SEL_REG 3
fa201b69 36
fcc60db4 37static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
469fc3a4 38static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
fcc60db4
JM		 39
40
fa201b69
JM		 41int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
42{
a6099152
JM		 43 if (!wpa_s->wps_success &&
44 wpa_s->current_ssid &&
45 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
46 const u8 *bssid = wpa_s->bssid;
47 if (is_zero_ether_addr(bssid))
48 bssid = wpa_s->pending_bssid;
49
50 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
51 " did not succeed - continue trying to find "
52 "suitable AP", MAC2STR(bssid));
53 wpa_blacklist_add(wpa_s, bssid);
54
55 wpa_supplicant_deauthenticate(wpa_s,
56 WLAN_REASON_DEAUTH_LEAVING);
57 wpa_s->reassociate = 1;
58 wpa_supplicant_req_scan(wpa_s,
59 wpa_s->blacklist_cleared ? 5 : 0, 0);
60 wpa_s->blacklist_cleared = 0;
61 return 1;
62 }
63
fcc60db4
JM		 64 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
65
fa201b69
JM		 66 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
67 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
68 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
69 "try to associate with the received credential");
70 wpa_supplicant_deauthenticate(wpa_s,
71 WLAN_REASON_DEAUTH_LEAVING);
72 wpa_s->reassociate = 1;
73 wpa_supplicant_req_scan(wpa_s, 0, 0);
74 return 1;
75 }
76
47662164
JM		 77 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
78 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
79 "for external credential processing");
80 wpas_clear_wps(wpa_s);
81 wpa_supplicant_deauthenticate(wpa_s,
82 WLAN_REASON_DEAUTH_LEAVING);
83 return 1;
84 }
85
fa201b69
JM		 86 return 0;
87}
88
89
7cc1b6c9
JM		 90static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
91 struct wpa_ssid *ssid,
92 const struct wps_credential *cred)
93{
94 struct wpa_driver_capa capa;
95 size_t i;
96 struct wpa_scan_res *bss;
97 const u8 *ie;
98 struct wpa_ie_data adv;
99 int wpa2 = 0, ccmp = 0;
100
101 /*
102 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
103 * case they are configured for mixed mode operation (WPA+WPA2 and
104 * TKIP+CCMP). Try to use scan results to figure out whether the AP
105 * actually supports stronger security and select that if the client
106 * has support for it, too.
107 */
108
109 if (wpa_drv_get_capa(wpa_s, &capa))
110 return; /* Unknown what driver supports */
111
112 if (wpa_supplicant_get_scan_results(wpa_s) || wpa_s->scan_res == NULL)
113 return; /* Could not get scan results for checking advertised
114 * parameters */
115
116 for (i = 0; i < wpa_s->scan_res->num; i++) {
117 bss = wpa_s->scan_res->res[i];
118 if (os_memcmp(bss->bssid, cred->mac_addr, ETH_ALEN) != 0)
119 continue;
120 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
121 if (ie == NULL)
122 continue;
123 if (ie[1] != ssid->ssid_len || ssid->ssid == NULL ||
124 os_memcmp(ie + 2, ssid->ssid, ssid->ssid_len) != 0)
125 continue;
126
127 wpa_printf(MSG_DEBUG, "WPS: AP found from scan results");
128 break;
129 }
130
131 if (i == wpa_s->scan_res->num) {
132 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from scan "
133 "results - use credential as-is");
134 return;
135 }
136
137 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
138 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
139 wpa2 = 1;
140 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
141 ccmp = 1;
142 } else {
143 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
144 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
145 adv.pairwise_cipher & WPA_CIPHER_CCMP)
146 ccmp = 1;
147 }
148
149 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
150 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
151 /*
152 * TODO: This could be the initial AP configuration and the
153 * Beacon contents could change shortly. Should request a new
154 * scan and delay addition of the network until the updated
155 * scan results are available.
156 */
157 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
158 "support - use credential as-is");
159 return;
160 }
161
162 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
163 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
164 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
165 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
166 "based on scan results");
167 if (wpa_s->conf->ap_scan == 1)
168 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
169 else
170 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
171 }
172
173 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
174 (ssid->proto & WPA_PROTO_WPA) &&
175 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
176 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
177 "based on scan results");
178 if (wpa_s->conf->ap_scan == 1)
179 ssid->proto |= WPA_PROTO_RSN;
180 else
181 ssid->proto = WPA_PROTO_RSN;
182 }
183}
184
185
bcbbc7af
JM		 186static int wpa_supplicant_wps_cred(void *ctx,
187 const struct wps_credential *cred)
fa201b69
JM		 188{
189 struct wpa_supplicant *wpa_s = ctx;
190 struct wpa_ssid *ssid = wpa_s->current_ssid;
522b5b6e 191 u8 key_idx = 0;
49eba5f8 192 u16 auth_type;
fa201b69 193
47662164
JM		 194 if ((wpa_s->conf->wps_cred_processing == 1 ||
195 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
196 size_t blen = cred->cred_attr_len * 2 + 1;
197 char *buf = os_malloc(blen);
198 if (buf) {
199 wpa_snprintf_hex(buf, blen,
200 cred->cred_attr, cred->cred_attr_len);
201 wpa_msg(wpa_s, MSG_INFO, "%s%s",
202 WPS_EVENT_CRED_RECEIVED, buf);
203 os_free(buf);
204 }
8bac466b
JM		 205
206 wpas_notify_wps_credential(wpa_s, cred);
47662164
JM		 207 } else
208 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
fa201b69 209
eca6e0a9
JM		 210 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
211 cred->cred_attr, cred->cred_attr_len);
212
47662164
JM		 213 if (wpa_s->conf->wps_cred_processing == 1)
214 return 0;
215
73267b9c
JM		 216 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
217 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
218 cred->auth_type);
219 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
220 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
221 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
222 cred->key, cred->key_len);
223 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
224 MAC2STR(cred->mac_addr));
225
49eba5f8
JM		 226 auth_type = cred->auth_type;
227 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
228 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
229 "auth_type into WPA2PSK");
230 auth_type = WPS_AUTH_WPA2PSK;
231 }
232
233 if (auth_type != WPS_AUTH_OPEN &&
234 auth_type != WPS_AUTH_SHARED &&
235 auth_type != WPS_AUTH_WPAPSK &&
236 auth_type != WPS_AUTH_WPA2PSK) {
f286077d 237 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
49eba5f8
JM		 238 "unsupported authentication type 0x%x",
239 auth_type);
f286077d
JM		 240 return 0;
241 }
242
fa201b69
JM		 243 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
244 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
245 "on the received credential");
246 os_free(ssid->eap.identity);
247 ssid->eap.identity = NULL;
248 ssid->eap.identity_len = 0;
249 os_free(ssid->eap.phase1);
250 ssid->eap.phase1 = NULL;
251 os_free(ssid->eap.eap_methods);
252 ssid->eap.eap_methods = NULL;
253 } else {
254 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
255 "received credential");
256 ssid = wpa_config_add_network(wpa_s->conf);
257 if (ssid == NULL)
258 return -1;
8bac466b 259 wpas_notify_network_added(wpa_s, ssid);
fa201b69
JM		 260 }
261
262 wpa_config_set_network_defaults(ssid);
263
264 os_free(ssid->ssid);
265 ssid->ssid = os_malloc(cred->ssid_len);
266 if (ssid->ssid) {
267 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
268 ssid->ssid_len = cred->ssid_len;
269 }
270
271 switch (cred->encr_type) {
272 case WPS_ENCR_NONE:
fa201b69
JM		 273 break;
274 case WPS_ENCR_WEP:
4b195a1b
AT		 275 if (cred->key_len <= 0)
276 break;
277 if (cred->key_len != 5 && cred->key_len != 13 &&
278 cred->key_len != 10 && cred->key_len != 26) {
279 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
280 "%lu", (unsigned long) cred->key_len);
281 return -1;
282 }
522b5b6e 283 if (cred->key_idx > NUM_WEP_KEYS) {
4b195a1b
AT		 284 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
285 cred->key_idx);
286 return -1;
287 }
522b5b6e
AT		 288 if (cred->key_idx)
289 key_idx = cred->key_idx - 1;
4b195a1b
AT		 290 if (cred->key_len == 10 || cred->key_len == 26) {
291 if (hexstr2bin((char *) cred->key,
292 ssid->wep_key[key_idx],
293 cred->key_len / 2) < 0) {
294 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
295 "%d", key_idx);
296 return -1;
297 }
298 ssid->wep_key_len[key_idx] = cred->key_len / 2;
299 } else {
300 os_memcpy(ssid->wep_key[key_idx], cred->key,
fa201b69 301 cred->key_len);
4b195a1b 302 ssid->wep_key_len[key_idx] = cred->key_len;
fa201b69 303 }
4b195a1b 304 ssid->wep_tx_keyidx = key_idx;
fa201b69
JM		 305 break;
306 case WPS_ENCR_TKIP:
307 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
fa201b69
JM		 308 break;
309 case WPS_ENCR_AES:
310 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
fa201b69
JM		 311 break;
312 }
313
49eba5f8 314 switch (auth_type) {
fa201b69
JM		 315 case WPS_AUTH_OPEN:
316 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
317 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
318 ssid->proto = 0;
319 break;
320 case WPS_AUTH_SHARED:
321 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
322 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
323 ssid->proto = 0;
324 break;
325 case WPS_AUTH_WPAPSK:
326 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
327 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
328 ssid->proto = WPA_PROTO_WPA;
329 break;
330 case WPS_AUTH_WPA:
331 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
332 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
333 ssid->proto = WPA_PROTO_WPA;
334 break;
335 case WPS_AUTH_WPA2:
336 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
337 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
338 ssid->proto = WPA_PROTO_RSN;
339 break;
340 case WPS_AUTH_WPA2PSK:
341 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
342 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
343 ssid->proto = WPA_PROTO_RSN;
344 break;
345 }
346
347 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
348 if (cred->key_len == 2 * PMK_LEN) {
349 if (hexstr2bin((const char *) cred->key, ssid->psk,
350 PMK_LEN)) {
351 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
352 "Key");
353 return -1;
354 }
355 ssid->psk_set = 1;
356 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
357 os_free(ssid->passphrase);
358 ssid->passphrase = os_malloc(cred->key_len + 1);
359 if (ssid->passphrase == NULL)
360 return -1;
361 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
362 ssid->passphrase[cred->key_len] = '\0';
363 wpa_config_update_psk(ssid);
364 } else {
365 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
366 "length %lu",
367 (unsigned long) cred->key_len);
368 return -1;
369 }
370 }
371
7cc1b6c9
JM		 372 wpas_wps_security_workaround(wpa_s, ssid, cred);
373
fa201b69
JM		 374#ifndef CONFIG_NO_CONFIG_WRITE
375 if (wpa_s->conf->update_config &&
376 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
377 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
378 return -1;
379 }
380#endif /* CONFIG_NO_CONFIG_WRITE */
381
382 return 0;
383}
384
385
4b68290e
JM		 386static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
387 struct wps_event_m2d *m2d)
388{
389 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
390 "dev_password_id=%d config_error=%d",
391 m2d->dev_password_id, m2d->config_error);
8bac466b 392 wpas_notify_wps_event_m2d(wpa_s, m2d);
4b68290e
JM		 393}
394
395
469fc3a4
JM		 396static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
397 struct wps_event_fail *fail)
398{
399 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL "msg=%d", fail->msg);
400 wpas_clear_wps(wpa_s);
8bac466b 401 wpas_notify_wps_event_fail(wpa_s, fail);
469fc3a4
JM		 402}
403
404
ad5302a1
JM		 405static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
406{
407 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
a6099152 408 wpa_s->wps_success = 1;
8bac466b 409 wpas_notify_wps_event_success(wpa_s);
ad5302a1
JM		 410}
411
412
b78bc3a3
JM		 413static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
414 struct wps_event_er_ap *ap)
415{
416 char uuid_str[100];
ed45947e 417 char dev_type[WPS_DEV_TYPE_BUFSIZE];
e694b344 418
b78bc3a3 419 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
e694b344 420 if (ap->pri_dev_type)
ed45947e
JM		 421 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
422 sizeof(dev_type));
e694b344
JM		 423 else
424 dev_type[0] = '\0';
425
426 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
427 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
428 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
b78bc3a3
JM		 429 ap->friendly_name ? ap->friendly_name : "",
430 ap->manufacturer ? ap->manufacturer : "",
431 ap->model_description ? ap->model_description : "",
432 ap->model_name ? ap->model_name : "",
433 ap->manufacturer_url ? ap->manufacturer_url : "",
434 ap->model_url ? ap->model_url : "");
435}
436
437
438static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
439 struct wps_event_er_ap *ap)
440{
441 char uuid_str[100];
442 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
443 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
444}
445
446
447static void wpa_supplicant_wps_event_er_enrollee_add(
448 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
449{
450 char uuid_str[100];
ed45947e 451 char dev_type[WPS_DEV_TYPE_BUFSIZE];
b78bc3a3
JM		 452
453 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
454 if (enrollee->pri_dev_type)
ed45947e
JM		 455 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
456 sizeof(dev_type));
b78bc3a3
JM		 457 else
458 dev_type[0] = '\0';
459
460 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
461 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
462 "|%s|%s|%s|%s|%s|",
463 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
464 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
465 enrollee->dev_name ? enrollee->dev_name : "",
466 enrollee->manufacturer ? enrollee->manufacturer : "",
467 enrollee->model_name ? enrollee->model_name : "",
468 enrollee->model_number ? enrollee->model_number : "",
469 enrollee->serial_number ? enrollee->serial_number : "");
470}
471
472
473static void wpa_supplicant_wps_event_er_enrollee_remove(
474 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
475{
476 char uuid_str[100];
477 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
478 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
479 uuid_str, MAC2STR(enrollee->mac_addr));
480}
481
482
4b68290e
JM		 483static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
484 union wps_event_data *data)
485{
486 struct wpa_supplicant *wpa_s = ctx;
487 switch (event) {
488 case WPS_EV_M2D:
489 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
490 break;
469fc3a4
JM		 491 case WPS_EV_FAIL:
492 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
493 break;
ad5302a1
JM		 494 case WPS_EV_SUCCESS:
495 wpa_supplicant_wps_event_success(wpa_s);
496 break;
3b2cf800
JM		 497 case WPS_EV_PWD_AUTH_FAIL:
498 break;
63330c68
OK		 499 case WPS_EV_PBC_OVERLAP:
500 break;
501 case WPS_EV_PBC_TIMEOUT:
502 break;
b78bc3a3
JM		 503 case WPS_EV_ER_AP_ADD:
504 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
505 break;
506 case WPS_EV_ER_AP_REMOVE:
507 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
508 break;
509 case WPS_EV_ER_ENROLLEE_ADD:
510 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
511 &data->enrollee);
512 break;
513 case WPS_EV_ER_ENROLLEE_REMOVE:
514 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
515 &data->enrollee);
516 break;
4b68290e
JM		 517 }
518}
519
520
f90c86d4 521enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
fa201b69 522{
b01c18a8
JM		 523 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
524 eap_is_wps_pin_enrollee(&ssid->eap))
525 return WPS_REQ_ENROLLEE;
526 else
527 return WPS_REQ_REGISTRAR;
fa201b69 528}
116654ce
JM		 529
530
fcc60db4
JM		 531static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
532{
533 int id;
8bac466b 534 struct wpa_ssid *ssid, *remove_ssid = NULL;
fcc60db4
JM		 535
536 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
537
538 /* Remove any existing WPS network from configuration */
539 ssid = wpa_s->conf->ssid;
540 while (ssid) {
f0477201 541 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
8bac466b 542 if (ssid == wpa_s->current_ssid) {
f0477201 543 wpa_s->current_ssid = NULL;
8bac466b
JM		 544 if (ssid != NULL)
545 wpas_notify_network_changed(wpa_s);
546 }
fcc60db4 547 id = ssid->id;
8bac466b 548 remove_ssid = ssid;
f0477201 549 } else
fcc60db4
JM		 550 id = -1;
551 ssid = ssid->next;
8bac466b
JM		 552 if (id >= 0) {
553 wpas_notify_network_removed(wpa_s, remove_ssid);
fcc60db4 554 wpa_config_remove_network(wpa_s->conf, id);
8bac466b 555 }
fcc60db4
JM		 556 }
557}
558
559
560static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
561{
562 struct wpa_supplicant *wpa_s = eloop_ctx;
a6099152
JM		 563 wpa_printf(MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
564 "out");
fcc60db4
JM		 565 wpas_clear_wps(wpa_s);
566}
567
568
569static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
570 int registrar, const u8 *bssid)
571{
572 struct wpa_ssid *ssid;
573
574 ssid = wpa_config_add_network(wpa_s->conf);
575 if (ssid == NULL)
576 return NULL;
8bac466b 577 wpas_notify_network_added(wpa_s, ssid);
fcc60db4
JM		 578 wpa_config_set_network_defaults(ssid);
579 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
580 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
581 wpa_config_set(ssid, "identity", registrar ?
582 "\"" WSC_ID_REGISTRAR "\"" :
583 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
8bac466b 584 wpas_notify_network_removed(wpa_s, ssid);
fcc60db4
JM		 585 wpa_config_remove_network(wpa_s->conf, ssid->id);
586 return NULL;
587 }
588
589 if (bssid) {
590 size_t i;
591 struct wpa_scan_res *res;
592
593 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
24c23d1b 594 ssid->bssid_set = 1;
fcc60db4
JM		 595
596 /* Try to get SSID from scan results */
597 if (wpa_s->scan_res == NULL &&
598 wpa_supplicant_get_scan_results(wpa_s) < 0)
599 return ssid; /* Could not find any scan results */
600
601 for (i = 0; i < wpa_s->scan_res->num; i++) {
602 const u8 *ie;
603
604 res = wpa_s->scan_res->res[i];
605 if (os_memcmp(bssid, res->bssid, ETH_ALEN) != 0)
606 continue;
607
608 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
609 if (ie == NULL)
610 break;
611 os_free(ssid->ssid);
612 ssid->ssid = os_malloc(ie[1]);
613 if (ssid->ssid == NULL)
614 break;
615 os_memcpy(ssid->ssid, ie + 2, ie[1]);
616 ssid->ssid_len = ie[1];
617 break;
618 }
619 }
620
621 return ssid;
622}
623
624
625static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
626 struct wpa_ssid *selected)
627{
628 struct wpa_ssid *ssid;
629
630 /* Mark all other networks disabled and trigger reassociation */
631 ssid = wpa_s->conf->ssid;
632 while (ssid) {
8bac466b 633 int was_disabled = ssid->disabled;
fcc60db4 634 ssid->disabled = ssid != selected;
8bac466b
JM		 635 if (was_disabled != ssid->disabled)
636 wpas_notify_network_enabled_changed(wpa_s, ssid);
fcc60db4
JM		 637 ssid = ssid->next;
638 }
639 wpa_s->disconnected = 0;
640 wpa_s->reassociate = 1;
a6099152
JM		 641 wpa_s->scan_runs = 0;
642 wpa_s->wps_success = 0;
643 wpa_s->blacklist_cleared = 0;
fcc60db4
JM		 644 wpa_supplicant_req_scan(wpa_s, 0, 0);
645}
646
647
648int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid)
649{
650 struct wpa_ssid *ssid;
651 wpas_clear_wps(wpa_s);
652 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
653 if (ssid == NULL)
654 return -1;
655 wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
656 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
657 wpa_s, NULL);
658 wpas_wps_reassoc(wpa_s, ssid);
659 return 0;
660}
661
662
663int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
664 const char *pin)
665{
666 struct wpa_ssid *ssid;
46bdb83a 667 char val[128];
fcc60db4
JM		 668 unsigned int rpin = 0;
669
670 wpas_clear_wps(wpa_s);
671 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
672 if (ssid == NULL)
673 return -1;
674 if (pin)
675 os_snprintf(val, sizeof(val), "\"pin=%s\"", pin);
676 else {
677 rpin = wps_generate_pin();
678 os_snprintf(val, sizeof(val), "\"pin=%08d\"", rpin);
679 }
680 wpa_config_set(ssid, "phase1", val, 0);
681 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
682 wpa_s, NULL);
683 wpas_wps_reassoc(wpa_s, ssid);
684 return rpin;
685}
686
687
116f7bb0 688#ifdef CONFIG_WPS_OOB
46bdb83a 689int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
e1ee6b60 690 char *path, char *method, char *name)
46bdb83a
MH		 691{
692 struct wps_context *wps = wpa_s->wps;
7cbf51bb 693 struct oob_device_data *oob_dev;
46bdb83a 694
7cbf51bb
JM		 695 oob_dev = wps_get_oob_device(device_type);
696 if (oob_dev == NULL)
46bdb83a 697 return -1;
7cbf51bb 698 oob_dev->device_path = path;
e1ee6b60 699 oob_dev->device_name = name;
46bdb83a
MH		 700 wps->oob_conf.oob_method = wps_get_oob_method(method);
701
d5e2b2d2
JM		 702 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
703 /*
704 * Use pre-configured DH keys in order to be able to write the
705 * key hash into the OOB file.
706 */
707 wpabuf_free(wps->dh_pubkey);
708 wpabuf_free(wps->dh_privkey);
709 wps->dh_privkey = NULL;
f042122a
JM		 710 wps->dh_pubkey = NULL;
711 dh5_free(wps->dh_ctx);
712 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
d5e2b2d2 713 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
f042122a 714 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
d5e2b2d2
JM		 715 wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
716 "Diffie-Hellman handshake");
717 return -1;
718 }
719 }
720
46bdb83a
MH		 721 if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
722 wpas_clear_wps(wpa_s);
723
7cbf51bb 724 if (wps_process_oob(wps, oob_dev, 0) < 0)
46bdb83a
MH		 725 return -1;
726
727 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
728 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
729 wpas_wps_start_pin(wpa_s, NULL,
730 wpabuf_head(wps->oob_conf.dev_password)) < 0)
731 return -1;
732
733 return 0;
734}
116f7bb0 735#endif /* CONFIG_WPS_OOB */
46bdb83a
MH		 736
737
fcc60db4 738int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
52eb293d 739 const char *pin, struct wps_new_ap_settings *settings)
fcc60db4
JM		 740{
741 struct wpa_ssid *ssid;
52eb293d
JM		 742 char val[200];
743 char *pos, *end;
744 int res;
fcc60db4
JM		 745
746 if (!pin)
747 return -1;
748 wpas_clear_wps(wpa_s);
749 ssid = wpas_wps_add_network(wpa_s, 1, bssid);
750 if (ssid == NULL)
751 return -1;
52eb293d
JM		 752 pos = val;
753 end = pos + sizeof(val);
754 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
755 if (res < 0 || res >= end - pos)
756 return -1;
757 pos += res;
758 if (settings) {
759 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
760 "new_encr=%s new_key=%s",
761 settings->ssid_hex, settings->auth,
762 settings->encr, settings->key_hex);
763 if (res < 0 || res >= end - pos)
764 return -1;
765 pos += res;
766 }
767 res = os_snprintf(pos, end - pos, "\"");
768 if (res < 0 || res >= end - pos)
769 return -1;
fcc60db4
JM		 770 wpa_config_set(ssid, "phase1", val, 0);
771 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
772 wpa_s, NULL);
773 wpas_wps_reassoc(wpa_s, ssid);
774 return 0;
775}
776
777
c5adf528
JM		 778static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
779 size_t psk_len)
780{
781 wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
782 "STA " MACSTR, MAC2STR(mac_addr));
783 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
784
785 /* TODO */
786
787 return 0;
788}
789
790
791static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
792 const struct wps_device_data *dev)
793{
794 char uuid[40], txt[400];
795 int len;
96750ea5 796 char devtype[WPS_DEV_TYPE_BUFSIZE];
c5adf528
JM		 797 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
798 return;
799 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
800 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
96750ea5 801 " [%s|%s|%s|%s|%s|%s]",
c5adf528
JM		 802 uuid, MAC2STR(dev->mac_addr), dev->device_name,
803 dev->manufacturer, dev->model_name,
804 dev->model_number, dev->serial_number,
96750ea5
JM		 805 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
806 sizeof(devtype)));
c5adf528
JM		 807 if (len > 0 && len < (int) sizeof(txt))
808 wpa_printf(MSG_INFO, "%s", txt);
809}
810
811
72df2f5f
JM		 812static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
813 u16 sel_reg_config_methods)
814{
815#ifdef CONFIG_WPS_ER
816 struct wpa_supplicant *wpa_s = ctx;
817
818 if (wpa_s->wps_er == NULL)
819 return;
820 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
821 sel_reg_config_methods);
822#endif /* CONFIG_WPS_ER */
823}
824
825
116654ce
JM		 826int wpas_wps_init(struct wpa_supplicant *wpa_s)
827{
828 struct wps_context *wps;
c5adf528 829 struct wps_registrar_config rcfg;
116654ce
JM		 830
831 wps = os_zalloc(sizeof(*wps));
832 if (wps == NULL)
833 return -1;
834
835 wps->cred_cb = wpa_supplicant_wps_cred;
4b68290e 836 wps->event_cb = wpa_supplicant_wps_event;
116654ce
JM		 837 wps->cb_ctx = wpa_s;
838
3c0b7aa4
JM		 839 wps->dev.device_name = wpa_s->conf->device_name;
840 wps->dev.manufacturer = wpa_s->conf->manufacturer;
841 wps->dev.model_name = wpa_s->conf->model_name;
842 wps->dev.model_number = wpa_s->conf->model_number;
843 wps->dev.serial_number = wpa_s->conf->serial_number;
c0e4dd9e
JM		 844 wps->config_methods =
845 wps_config_methods_str2bin(wpa_s->conf->config_methods);
96750ea5
JM		 846 if (wpa_s->conf->device_type &&
847 wps_dev_type_str2bin(wpa_s->conf->device_type,
848 wps->dev.pri_dev_type) < 0) {
849 wpa_printf(MSG_ERROR, "WPS: Invalid device_type");
850 os_free(wps);
851 return -1;
3c0b7aa4
JM		 852 }
853 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
854 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ; /* TODO: config */
398cfbf6 855 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
79da74a2
JM		 856 if (is_nil_uuid(wpa_s->conf->uuid)) {
857 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
858 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC address",
859 wps->uuid, WPS_UUID_LEN);
860 } else
861 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
116654ce 862
c5adf528
JM		 863 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
864 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
865
866 os_memset(&rcfg, 0, sizeof(rcfg));
867 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
868 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
72df2f5f 869 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
c5adf528
JM		 870 rcfg.cb_ctx = wpa_s;
871
872 wps->registrar = wps_registrar_init(wps, &rcfg);
873 if (wps->registrar == NULL) {
874 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
875 os_free(wps);
876 return -1;
877 }
878
116654ce
JM		 879 wpa_s->wps = wps;
880
881 return 0;
882}
883
884
885void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
886{
fcc60db4
JM		 887 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
888
116654ce
JM		 889 if (wpa_s->wps == NULL)
890 return;
891
a6b63078 892#ifdef CONFIG_WPS_ER
1a1bf008 893 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
a6b63078
JM		 894 wpa_s->wps_er = NULL;
895#endif /* CONFIG_WPS_ER */
896
c5adf528 897 wps_registrar_deinit(wpa_s->wps->registrar);
46bdb83a
MH		 898 wpabuf_free(wpa_s->wps->dh_pubkey);
899 wpabuf_free(wpa_s->wps->dh_privkey);
900 wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
901 wpabuf_free(wpa_s->wps->oob_conf.dev_password);
116654ce
JM		 902 os_free(wpa_s->wps->network_key);
903 os_free(wpa_s->wps);
904 wpa_s->wps = NULL;
905}
351f09a2
JM		 906
907
a6099152
JM		 908int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
909 struct wpa_ssid *ssid, struct wpa_scan_res *bss)
351f09a2
JM		 910{
911 struct wpabuf *wps_ie;
912
913 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
914 return -1;
915
916 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
917 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
918 if (!wps_ie) {
919 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
920 return 0;
921 }
922
923 if (!wps_is_selected_pbc_registrar(wps_ie)) {
924 wpa_printf(MSG_DEBUG, " skip - WPS AP "
925 "without active PBC Registrar");
926 wpabuf_free(wps_ie);
927 return 0;
928 }
929
930 /* TODO: overlap detection */
931 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
932 "(Active PBC)");
933 wpabuf_free(wps_ie);
934 return 1;
935 }
936
937 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
938 if (!wps_ie) {
939 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
940 return 0;
941 }
942
a6099152
JM		 943 /*
944 * Start with WPS APs that advertise active PIN Registrar and
945 * allow any WPS AP after third scan since some APs do not set
946 * Selected Registrar attribute properly when using external
947 * Registrar.
948 */
351f09a2 949 if (!wps_is_selected_pin_registrar(wps_ie)) {
a6099152
JM		 950 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
951 wpa_printf(MSG_DEBUG, " skip - WPS AP "
952 "without active PIN Registrar");
953 wpabuf_free(wps_ie);
954 return 0;
955 }
956 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
957 } else {
958 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
959 "(Active PIN)");
351f09a2 960 }
351f09a2
JM		 961 wpabuf_free(wps_ie);
962 return 1;
963 }
964
965 if (wps_ie) {
966 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
967 wpabuf_free(wps_ie);
968 return 1;
969 }
970
971 return -1;
972}
973
974
a6099152
JM		 975int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
976 struct wpa_ssid *ssid,
351f09a2
JM		 977 struct wpa_scan_res *bss)
978{
979 struct wpabuf *wps_ie = NULL;
980 int ret = 0;
981
982 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
983 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
984 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
985 /* allow wildcard SSID for WPS PBC */
986 ret = 1;
987 }
988 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
989 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
a6099152
JM		 990 if (wps_ie &&
991 (wps_is_selected_pin_registrar(wps_ie) ||
992 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
351f09a2
JM		 993 /* allow wildcard SSID for WPS PIN */
994 ret = 1;
995 }
996 }
997
24c23d1b
JM		 998 if (!ret && ssid->bssid_set &&
999 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1000 /* allow wildcard SSID due to hardcoded BSSID match */
1001 ret = 1;
1002 }
1003
351f09a2
JM		 1004 wpabuf_free(wps_ie);
1005
1006 return ret;
1007}
1008
1009
1010int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1011 struct wpa_scan_res *selected,
1012 struct wpa_ssid *ssid)
1013{
1014 const u8 *sel_uuid, *uuid;
1015 size_t i;
1016 struct wpabuf *wps_ie;
1017 int ret = 0;
1018
1019 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1020 return 0;
1021
1022 /* Make sure that only one AP is in active PBC mode */
1023 wps_ie = wpa_scan_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1024 if (wps_ie)
1025 sel_uuid = wps_get_uuid_e(wps_ie);
1026 else
1027 sel_uuid = NULL;
351f09a2
JM		 1028
1029 for (i = 0; i < wpa_s->scan_res->num; i++) {
1030 struct wpa_scan_res *bss = wpa_s->scan_res->res[i];
1031 struct wpabuf *ie;
1032 if (bss == selected)
1033 continue;
1034 ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1035 if (!ie)
1036 continue;
1037 if (!wps_is_selected_pbc_registrar(ie)) {
1038 wpabuf_free(ie);
1039 continue;
1040 }
1041 uuid = wps_get_uuid_e(ie);
44cd430f
JM		 1042 if (sel_uuid == NULL || uuid == NULL ||
1043 os_memcmp(sel_uuid, uuid, 16) != 0) {
351f09a2
JM		 1044 ret = 1; /* PBC overlap */
1045 wpabuf_free(ie);
1046 break;
1047 }
1048
1049 /* TODO: verify that this is reasonable dual-band situation */
484957ae
JM		 1050
1051 wpabuf_free(ie);
351f09a2
JM		 1052 }
1053
1054 wpabuf_free(wps_ie);
1055
1056 return ret;
1057}
a524f05e
JM		 1058
1059
1060void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1061{
1062 size_t i;
1063
1064 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1065 return;
1066
1067 for (i = 0; i < wpa_s->scan_res->num; i++) {
1068 struct wpa_scan_res *bss = wpa_s->scan_res->res[i];
1069 struct wpabuf *ie;
1070 ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1071 if (!ie)
1072 continue;
1073 if (wps_is_selected_pbc_registrar(ie))
332d630a
JM		 1074 wpa_msg_ctrl(wpa_s, MSG_INFO,
1075 WPS_EVENT_AP_AVAILABLE_PBC);
a524f05e 1076 else if (wps_is_selected_pin_registrar(ie))
332d630a
JM		 1077 wpa_msg_ctrl(wpa_s, MSG_INFO,
1078 WPS_EVENT_AP_AVAILABLE_PIN);
a524f05e 1079 else
332d630a
JM		 1080 wpa_msg_ctrl(wpa_s, MSG_INFO,
1081 WPS_EVENT_AP_AVAILABLE);
a524f05e
JM		 1082 wpabuf_free(ie);
1083 break;
1084 }
1085}
24c23d1b
JM		 1086
1087
1088int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1089{
1090 struct wpa_ssid *ssid;
1091
1092 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1093 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1094 return 1;
1095 }
1096
1097 return 0;
1098}
611ed491
JM		 1099
1100
1101int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1102 char *end)
1103{
1104 struct wpabuf *wps_ie;
1105 int ret;
1106
1107 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1108 if (wps_ie == NULL)
1109 return 0;
1110
1111 ret = wps_attr_text(wps_ie, buf, end);
1112 wpabuf_free(wps_ie);
1113 return ret;
1114}
e9bcfebf
JM		 1115
1116
1117int wpas_wps_er_start(struct wpa_supplicant *wpa_s)
1118{
1119#ifdef CONFIG_WPS_ER
1120 if (wpa_s->wps_er) {
b3f371ca 1121 wps_er_refresh(wpa_s->wps_er);
e9bcfebf
JM		 1122 return 0;
1123 }
1124 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname);
1125 if (wpa_s->wps_er == NULL)
1126 return -1;
1127 return 0;
1128#else /* CONFIG_WPS_ER */
1129 return 0;
1130#endif /* CONFIG_WPS_ER */
1131}
1132
1133
1134int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1135{
1136#ifdef CONFIG_WPS_ER
1a1bf008 1137 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
e9bcfebf
JM		 1138 wpa_s->wps_er = NULL;
1139#endif /* CONFIG_WPS_ER */
1140 return 0;
1141}
72df2f5f
JM		 1142
1143
1144#ifdef CONFIG_WPS_ER
1145int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const char *uuid,
1146 const char *pin)
1147{
1148 u8 u[UUID_LEN];
1149 int any = 0;
1150
1151 if (os_strcmp(uuid, "any") == 0)
1152 any = 1;
1153 else if (uuid_str2bin(uuid, u))
1154 return -1;
1155 return wps_registrar_add_pin(wpa_s->wps->registrar, any ? NULL : u,
1156 (const u8 *) pin, os_strlen(pin), 300);
1157}
564cd7fa
JM		 1158
1159
1160int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1161{
1162 u8 u[UUID_LEN];
1163
1164 if (uuid_str2bin(uuid, u))
1165 return -1;
1166 return wps_er_pbc(wpa_s->wps_er, u);
1167}
e64dcfd5
JM		 1168
1169
1170int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1171 const char *pin)
1172{
1173 u8 u[UUID_LEN];
1174
1175 if (uuid_str2bin(uuid, u))
1176 return -1;
1177 return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1178 os_strlen(pin));
1179}
1a1bf008
JM		 1180
1181
1182static void wpas_wps_terminate_cb(void *ctx)
1183{
1184 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1185 eloop_terminate();
1186}
1187#endif /* CONFIG_WPS_ER */
1188
1189
1190int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1191{
1192#ifdef CONFIG_WPS_ER
1193 if (wpa_s->wps_er) {
1194 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1195 wpa_s->wps_er = NULL;
1196 return 1;
1197 }
72df2f5f 1198#endif /* CONFIG_WPS_ER */
1a1bf008
JM		 1199 return 0;
1200}
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