1 /*
2 * wpa_supplicant / WPS integration
3 * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "eloop.h"
13 #include "uuid.h"
14 #include "crypto/dh_group5.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/ieee802_11_common.h"
17 #include "common/wpa_common.h"
18 #include "common/wpa_ctrl.h"
19 #include "eap_common/eap_wsc_common.h"
20 #include "eap_peer/eap.h"
21 #include "eapol_supp/eapol_supp_sm.h"
22 #include "rsn_supp/wpa.h"
23 #include "config.h"
24 #include "wpa_supplicant_i.h"
25 #include "driver_i.h"
26 #include "notify.h"
27 #include "blacklist.h"
28 #include "bss.h"
29 #include "scan.h"
30 #include "ap.h"
31 #include "p2p/p2p.h"
32 #include "p2p_supplicant.h"
33 #include "wps_supplicant.h"
34
35
36 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
37 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
38 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
39
40 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
41 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
42
43
wpas_wps_eapol_cb(struct wpa_supplicant * wpa_s)44 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
45 {
46 if (!wpa_s->wps_success &&
47 wpa_s->current_ssid &&
48 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
49 const u8 *bssid = wpa_s->bssid;
50 if (is_zero_ether_addr(bssid))
51 bssid = wpa_s->pending_bssid;
52
53 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
54 " did not succeed - continue trying to find "
55 "suitable AP", MAC2STR(bssid));
56 wpa_blacklist_add(wpa_s, bssid);
57
58 wpa_supplicant_deauthenticate(wpa_s,
59 WLAN_REASON_DEAUTH_LEAVING);
60 wpa_s->reassociate = 1;
61 wpa_supplicant_req_scan(wpa_s,
62 wpa_s->blacklist_cleared ? 5 : 0, 0);
63 wpa_s->blacklist_cleared = 0;
64 return 1;
65 }
66
67 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
68 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
69 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
70
71 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
72 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
73 int disabled = wpa_s->current_ssid->disabled;
74 unsigned int freq = wpa_s->assoc_freq;
75 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
76 "try to associate with the received credential "
77 "(freq=%u)", freq);
78 wpa_supplicant_deauthenticate(wpa_s,
79 WLAN_REASON_DEAUTH_LEAVING);
80 if (disabled) {
81 wpa_printf(MSG_DEBUG, "WPS: Current network is "
82 "disabled - wait for user to enable");
83 return 1;
84 }
85 wpa_s->after_wps = 5;
86 wpa_s->wps_freq = freq;
87 wpa_s->normal_scans = 0;
88 wpa_s->reassociate = 1;
89 wpa_supplicant_req_scan(wpa_s, 0, 0);
90 return 1;
91 }
92
93 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
94 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
95 "for external credential processing");
96 wpas_clear_wps(wpa_s);
97 wpa_supplicant_deauthenticate(wpa_s,
98 WLAN_REASON_DEAUTH_LEAVING);
99 return 1;
100 }
101
102 return 0;
103 }
104
105
wpas_wps_security_workaround(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,const struct wps_credential * cred)106 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
107 struct wpa_ssid *ssid,
108 const struct wps_credential *cred)
109 {
110 struct wpa_driver_capa capa;
111 struct wpa_bss *bss;
112 const u8 *ie;
113 struct wpa_ie_data adv;
114 int wpa2 = 0, ccmp = 0;
115
116 /*
117 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
118 * case they are configured for mixed mode operation (WPA+WPA2 and
119 * TKIP+CCMP). Try to use scan results to figure out whether the AP
120 * actually supports stronger security and select that if the client
121 * has support for it, too.
122 */
123
124 if (wpa_drv_get_capa(wpa_s, &capa))
125 return; /* Unknown what driver supports */
126
127 if (ssid->ssid == NULL)
128 return;
129 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
130 if (bss == NULL) {
131 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
132 "table - use credential as-is");
133 return;
134 }
135
136 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
137
138 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
139 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
140 wpa2 = 1;
141 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
142 ccmp = 1;
143 } else {
144 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
145 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
146 adv.pairwise_cipher & WPA_CIPHER_CCMP)
147 ccmp = 1;
148 }
149
150 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
151 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
152 /*
153 * TODO: This could be the initial AP configuration and the
154 * Beacon contents could change shortly. Should request a new
155 * scan and delay addition of the network until the updated
156 * scan results are available.
157 */
158 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
159 "support - use credential as-is");
160 return;
161 }
162
163 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
164 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
165 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
166 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
167 "based on scan results");
168 if (wpa_s->conf->ap_scan == 1)
169 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
170 else
171 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
172 }
173
174 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
175 (ssid->proto & WPA_PROTO_WPA) &&
176 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
177 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
178 "based on scan results");
179 if (wpa_s->conf->ap_scan == 1)
180 ssid->proto |= WPA_PROTO_RSN;
181 else
182 ssid->proto = WPA_PROTO_RSN;
183 }
184 }
185
186
wpa_supplicant_wps_cred(void * ctx,const struct wps_credential * cred)187 static int wpa_supplicant_wps_cred(void *ctx,
188 const struct wps_credential *cred)
189 {
190 struct wpa_supplicant *wpa_s = ctx;
191 struct wpa_ssid *ssid = wpa_s->current_ssid;
192 u8 key_idx = 0;
193 u16 auth_type;
194 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
195 int registrar = 0;
196 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
197
198 if ((wpa_s->conf->wps_cred_processing == 1 ||
199 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
200 size_t blen = cred->cred_attr_len * 2 + 1;
201 char *buf = os_malloc(blen);
202 if (buf) {
203 wpa_snprintf_hex(buf, blen,
204 cred->cred_attr, cred->cred_attr_len);
205 wpa_msg(wpa_s, MSG_INFO, "%s%s",
206 WPS_EVENT_CRED_RECEIVED, buf);
207 os_free(buf);
208 }
209
210 wpas_notify_wps_credential(wpa_s, cred);
211 } else
212 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
213
214 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
215 cred->cred_attr, cred->cred_attr_len);
216
217 if (wpa_s->conf->wps_cred_processing == 1)
218 return 0;
219
220 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
221 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
222 cred->auth_type);
223 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
224 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
225 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
226 cred->key, cred->key_len);
227 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
228 MAC2STR(cred->mac_addr));
229
230 auth_type = cred->auth_type;
231 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
232 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
233 "auth_type into WPA2PSK");
234 auth_type = WPS_AUTH_WPA2PSK;
235 }
236
237 if (auth_type != WPS_AUTH_OPEN &&
238 auth_type != WPS_AUTH_SHARED &&
239 auth_type != WPS_AUTH_WPAPSK &&
240 auth_type != WPS_AUTH_WPA2PSK) {
241 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
242 "unsupported authentication type 0x%x",
243 auth_type);
244 return 0;
245 }
246
247 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
248 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
249 "on the received credential");
250 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
251 if (ssid->eap.identity &&
252 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
253 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
254 WSC_ID_REGISTRAR_LEN) == 0)
255 registrar = 1;
256 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
257 os_free(ssid->eap.identity);
258 ssid->eap.identity = NULL;
259 ssid->eap.identity_len = 0;
260 os_free(ssid->eap.phase1);
261 ssid->eap.phase1 = NULL;
262 os_free(ssid->eap.eap_methods);
263 ssid->eap.eap_methods = NULL;
264 if (!ssid->p2p_group)
265 ssid->temporary = 0;
266 } else {
267 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
268 "received credential");
269 ssid = wpa_config_add_network(wpa_s->conf);
270 if (ssid == NULL)
271 return -1;
272 wpas_notify_network_added(wpa_s, ssid);
273 }
274
275 wpa_config_set_network_defaults(ssid);
276
277 os_free(ssid->ssid);
278 ssid->ssid = os_malloc(cred->ssid_len);
279 if (ssid->ssid) {
280 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
281 ssid->ssid_len = cred->ssid_len;
282 }
283
284 switch (cred->encr_type) {
285 case WPS_ENCR_NONE:
286 break;
287 case WPS_ENCR_WEP:
288 if (cred->key_len <= 0)
289 break;
290 if (cred->key_len != 5 && cred->key_len != 13 &&
291 cred->key_len != 10 && cred->key_len != 26) {
292 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
293 "%lu", (unsigned long) cred->key_len);
294 return -1;
295 }
296 if (cred->key_idx > NUM_WEP_KEYS) {
297 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
298 cred->key_idx);
299 return -1;
300 }
301 if (cred->key_idx)
302 key_idx = cred->key_idx - 1;
303 if (cred->key_len == 10 || cred->key_len == 26) {
304 if (hexstr2bin((char *) cred->key,
305 ssid->wep_key[key_idx],
306 cred->key_len / 2) < 0) {
307 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
308 "%d", key_idx);
309 return -1;
310 }
311 ssid->wep_key_len[key_idx] = cred->key_len / 2;
312 } else {
313 os_memcpy(ssid->wep_key[key_idx], cred->key,
314 cred->key_len);
315 ssid->wep_key_len[key_idx] = cred->key_len;
316 }
317 ssid->wep_tx_keyidx = key_idx;
318 break;
319 case WPS_ENCR_TKIP:
320 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
321 break;
322 case WPS_ENCR_AES:
323 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
324 break;
325 }
326
327 switch (auth_type) {
328 case WPS_AUTH_OPEN:
329 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
330 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
331 ssid->proto = 0;
332 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
333 if (registrar) {
334 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
335 "id=%d - Credentials for an open "
336 "network disabled by default - use "
337 "'select_network %d' to enable",
338 ssid->id, ssid->id);
339 ssid->disabled = 1;
340 }
341 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
342 break;
343 case WPS_AUTH_SHARED:
344 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
345 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
346 ssid->proto = 0;
347 break;
348 case WPS_AUTH_WPAPSK:
349 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
350 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
351 ssid->proto = WPA_PROTO_WPA;
352 break;
353 case WPS_AUTH_WPA:
354 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
355 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
356 ssid->proto = WPA_PROTO_WPA;
357 break;
358 case WPS_AUTH_WPA2:
359 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
360 ssid->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
361 ssid->proto = WPA_PROTO_RSN;
362 break;
363 case WPS_AUTH_WPA2PSK:
364 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
365 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
366 ssid->proto = WPA_PROTO_RSN;
367 break;
368 }
369
370 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
371 if (cred->key_len == 2 * PMK_LEN) {
372 if (hexstr2bin((const char *) cred->key, ssid->psk,
373 PMK_LEN)) {
374 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
375 "Key");
376 return -1;
377 }
378 ssid->psk_set = 1;
379 ssid->export_keys = 1;
380 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
381 os_free(ssid->passphrase);
382 ssid->passphrase = os_malloc(cred->key_len + 1);
383 if (ssid->passphrase == NULL)
384 return -1;
385 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
386 ssid->passphrase[cred->key_len] = '\0';
387 wpa_config_update_psk(ssid);
388 ssid->export_keys = 1;
389 } else {
390 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
391 "length %lu",
392 (unsigned long) cred->key_len);
393 return -1;
394 }
395 }
396
397 wpas_wps_security_workaround(wpa_s, ssid, cred);
398
399 #ifndef CONFIG_NO_CONFIG_WRITE
400 if (wpa_s->conf->update_config &&
401 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
402 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
403 return -1;
404 }
405 #endif /* CONFIG_NO_CONFIG_WRITE */
406
407 return 0;
408 }
409
410
411 #ifdef CONFIG_P2P
wpas_wps_pbc_overlap_cb(void * eloop_ctx,void * timeout_ctx)412 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
413 {
414 struct wpa_supplicant *wpa_s = eloop_ctx;
415 wpas_p2p_notif_pbc_overlap(wpa_s);
416 }
417 #endif /* CONFIG_P2P */
418
419
wpa_supplicant_wps_event_m2d(struct wpa_supplicant * wpa_s,struct wps_event_m2d * m2d)420 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
421 struct wps_event_m2d *m2d)
422 {
423 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
424 "dev_password_id=%d config_error=%d",
425 m2d->dev_password_id, m2d->config_error);
426 wpas_notify_wps_event_m2d(wpa_s, m2d);
427 #ifdef CONFIG_P2P
428 if (wpa_s->parent && wpa_s->parent != wpa_s) {
429 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
430 "dev_password_id=%d config_error=%d",
431 m2d->dev_password_id, m2d->config_error);
432 }
433 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
434 /*
435 * Notify P2P from eloop timeout to avoid issues with the
436 * interface getting removed while processing a message.
437 */
438 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
439 NULL);
440 }
441 #endif /* CONFIG_P2P */
442 }
443
444
445 static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
446 "No Error", /* WPS_EI_NO_ERROR */
447 "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
448 "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
449 };
450
wpa_supplicant_wps_event_fail(struct wpa_supplicant * wpa_s,struct wps_event_fail * fail)451 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
452 struct wps_event_fail *fail)
453 {
454 if (fail->error_indication > 0 &&
455 fail->error_indication < NUM_WPS_EI_VALUES) {
456 wpa_msg(wpa_s, MSG_INFO,
457 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
458 fail->msg, fail->config_error, fail->error_indication,
459 wps_event_fail_reason[fail->error_indication]);
460 if (wpa_s->parent && wpa_s->parent != wpa_s)
461 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
462 "msg=%d config_error=%d reason=%d (%s)",
463 fail->msg, fail->config_error,
464 fail->error_indication,
465 wps_event_fail_reason[fail->error_indication]);
466 } else {
467 wpa_msg(wpa_s, MSG_INFO,
468 WPS_EVENT_FAIL "msg=%d config_error=%d",
469 fail->msg, fail->config_error);
470 if (wpa_s->parent && wpa_s->parent != wpa_s)
471 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
472 "msg=%d config_error=%d",
473 fail->msg, fail->config_error);
474 }
475 wpas_clear_wps(wpa_s);
476 wpas_notify_wps_event_fail(wpa_s, fail);
477 #ifdef CONFIG_P2P
478 wpas_p2p_wps_failed(wpa_s, fail);
479 #endif /* CONFIG_P2P */
480 }
481
482
wpa_supplicant_wps_event_success(struct wpa_supplicant * wpa_s)483 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
484 {
485 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
486 wpa_s->wps_success = 1;
487 wpas_notify_wps_event_success(wpa_s);
488 #ifdef CONFIG_P2P
489 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
490 #endif /* CONFIG_P2P */
491 }
492
493
wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant * wpa_s,struct wps_event_er_ap * ap)494 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
495 struct wps_event_er_ap *ap)
496 {
497 char uuid_str[100];
498 char dev_type[WPS_DEV_TYPE_BUFSIZE];
499
500 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
501 if (ap->pri_dev_type)
502 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
503 sizeof(dev_type));
504 else
505 dev_type[0] = '\0';
506
507 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
508 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
509 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
510 ap->friendly_name ? ap->friendly_name : "",
511 ap->manufacturer ? ap->manufacturer : "",
512 ap->model_description ? ap->model_description : "",
513 ap->model_name ? ap->model_name : "",
514 ap->manufacturer_url ? ap->manufacturer_url : "",
515 ap->model_url ? ap->model_url : "");
516 }
517
518
wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant * wpa_s,struct wps_event_er_ap * ap)519 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
520 struct wps_event_er_ap *ap)
521 {
522 char uuid_str[100];
523 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
524 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
525 }
526
527
wpa_supplicant_wps_event_er_enrollee_add(struct wpa_supplicant * wpa_s,struct wps_event_er_enrollee * enrollee)528 static void wpa_supplicant_wps_event_er_enrollee_add(
529 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
530 {
531 char uuid_str[100];
532 char dev_type[WPS_DEV_TYPE_BUFSIZE];
533
534 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
535 if (enrollee->pri_dev_type)
536 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
537 sizeof(dev_type));
538 else
539 dev_type[0] = '\0';
540
541 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
542 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
543 "|%s|%s|%s|%s|%s|",
544 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
545 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
546 enrollee->dev_name ? enrollee->dev_name : "",
547 enrollee->manufacturer ? enrollee->manufacturer : "",
548 enrollee->model_name ? enrollee->model_name : "",
549 enrollee->model_number ? enrollee->model_number : "",
550 enrollee->serial_number ? enrollee->serial_number : "");
551 }
552
553
wpa_supplicant_wps_event_er_enrollee_remove(struct wpa_supplicant * wpa_s,struct wps_event_er_enrollee * enrollee)554 static void wpa_supplicant_wps_event_er_enrollee_remove(
555 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
556 {
557 char uuid_str[100];
558 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
559 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
560 uuid_str, MAC2STR(enrollee->mac_addr));
561 }
562
563
wpa_supplicant_wps_event_er_ap_settings(struct wpa_supplicant * wpa_s,struct wps_event_er_ap_settings * ap_settings)564 static void wpa_supplicant_wps_event_er_ap_settings(
565 struct wpa_supplicant *wpa_s,
566 struct wps_event_er_ap_settings *ap_settings)
567 {
568 char uuid_str[100];
569 char key_str[65];
570 const struct wps_credential *cred = ap_settings->cred;
571
572 key_str[0] = '\0';
573 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
574 if (cred->key_len >= 8 && cred->key_len <= 64) {
575 os_memcpy(key_str, cred->key, cred->key_len);
576 key_str[cred->key_len] = '\0';
577 }
578 }
579
580 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
581 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
582 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
583 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
584 "key=%s",
585 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
586 cred->auth_type, cred->encr_type, key_str);
587 }
588
589
wpa_supplicant_wps_event_er_set_sel_reg(struct wpa_supplicant * wpa_s,struct wps_event_er_set_selected_registrar * ev)590 static void wpa_supplicant_wps_event_er_set_sel_reg(
591 struct wpa_supplicant *wpa_s,
592 struct wps_event_er_set_selected_registrar *ev)
593 {
594 char uuid_str[100];
595
596 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
597 switch (ev->state) {
598 case WPS_ER_SET_SEL_REG_START:
599 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
600 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
601 "sel_reg_config_methods=0x%x",
602 uuid_str, ev->sel_reg, ev->dev_passwd_id,
603 ev->sel_reg_config_methods);
604 break;
605 case WPS_ER_SET_SEL_REG_DONE:
606 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
607 "uuid=%s state=DONE", uuid_str);
608 break;
609 case WPS_ER_SET_SEL_REG_FAILED:
610 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
611 "uuid=%s state=FAILED", uuid_str);
612 break;
613 }
614 }
615
616
wpa_supplicant_wps_event(void * ctx,enum wps_event event,union wps_event_data * data)617 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
618 union wps_event_data *data)
619 {
620 struct wpa_supplicant *wpa_s = ctx;
621 switch (event) {
622 case WPS_EV_M2D:
623 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
624 break;
625 case WPS_EV_FAIL:
626 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
627 break;
628 case WPS_EV_SUCCESS:
629 wpa_supplicant_wps_event_success(wpa_s);
630 break;
631 case WPS_EV_PWD_AUTH_FAIL:
632 #ifdef CONFIG_AP
633 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
634 wpa_supplicant_ap_pwd_auth_fail(wpa_s);
635 #endif /* CONFIG_AP */
636 break;
637 case WPS_EV_PBC_OVERLAP:
638 break;
639 case WPS_EV_PBC_TIMEOUT:
640 break;
641 case WPS_EV_ER_AP_ADD:
642 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
643 break;
644 case WPS_EV_ER_AP_REMOVE:
645 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
646 break;
647 case WPS_EV_ER_ENROLLEE_ADD:
648 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
649 &data->enrollee);
650 break;
651 case WPS_EV_ER_ENROLLEE_REMOVE:
652 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
653 &data->enrollee);
654 break;
655 case WPS_EV_ER_AP_SETTINGS:
656 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
657 &data->ap_settings);
658 break;
659 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
660 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
661 &data->set_sel_reg);
662 break;
663 case WPS_EV_AP_PIN_SUCCESS:
664 break;
665 }
666 }
667
668
wpas_wps_get_req_type(struct wpa_ssid * ssid)669 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
670 {
671 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
672 eap_is_wps_pin_enrollee(&ssid->eap))
673 return WPS_REQ_ENROLLEE;
674 else
675 return WPS_REQ_REGISTRAR;
676 }
677
678
wpas_clear_wps(struct wpa_supplicant * wpa_s)679 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
680 {
681 int id;
682 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
683
684 prev_current = wpa_s->current_ssid;
685
686 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
687
688 /* Remove any existing WPS network from configuration */
689 ssid = wpa_s->conf->ssid;
690 while (ssid) {
691 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
692 if (ssid == wpa_s->current_ssid) {
693 wpa_s->current_ssid = NULL;
694 if (ssid != NULL)
695 wpas_notify_network_changed(wpa_s);
696 }
697 id = ssid->id;
698 remove_ssid = ssid;
699 } else
700 id = -1;
701 ssid = ssid->next;
702 if (id >= 0) {
703 if (prev_current == remove_ssid) {
704 wpa_sm_set_config(wpa_s->wpa, NULL);
705 eapol_sm_notify_config(wpa_s->eapol, NULL,
706 NULL);
707 }
708 wpas_notify_network_removed(wpa_s, remove_ssid);
709 wpa_config_remove_network(wpa_s->conf, id);
710 }
711 }
712 }
713
714
wpas_wps_timeout(void * eloop_ctx,void * timeout_ctx)715 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
716 {
717 struct wpa_supplicant *wpa_s = eloop_ctx;
718 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
719 "out");
720 wpas_clear_wps(wpa_s);
721 }
722
723
wpas_wps_add_network(struct wpa_supplicant * wpa_s,int registrar,const u8 * bssid)724 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
725 int registrar, const u8 *bssid)
726 {
727 struct wpa_ssid *ssid;
728
729 ssid = wpa_config_add_network(wpa_s->conf);
730 if (ssid == NULL)
731 return NULL;
732 wpas_notify_network_added(wpa_s, ssid);
733 wpa_config_set_network_defaults(ssid);
734 ssid->temporary = 1;
735 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
736 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
737 wpa_config_set(ssid, "identity", registrar ?
738 "\"" WSC_ID_REGISTRAR "\"" :
739 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
740 wpas_notify_network_removed(wpa_s, ssid);
741 wpa_config_remove_network(wpa_s->conf, ssid->id);
742 return NULL;
743 }
744
745 if (bssid) {
746 #ifndef CONFIG_P2P
747 struct wpa_bss *bss;
748 int count = 0;
749 #endif /* CONFIG_P2P */
750
751 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
752 ssid->bssid_set = 1;
753
754 /*
755 * Note: With P2P, the SSID may change at the time the WPS
756 * provisioning is started, so better not filter the AP based
757 * on the current SSID in the scan results.
758 */
759 #ifndef CONFIG_P2P
760 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
761 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
762 continue;
763
764 os_free(ssid->ssid);
765 ssid->ssid = os_malloc(bss->ssid_len);
766 if (ssid->ssid == NULL)
767 break;
768 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
769 ssid->ssid_len = bss->ssid_len;
770 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
771 "scan results",
772 ssid->ssid, ssid->ssid_len);
773 count++;
774 }
775
776 if (count > 1) {
777 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
778 "for the AP; use wildcard");
779 os_free(ssid->ssid);
780 ssid->ssid = NULL;
781 ssid->ssid_len = 0;
782 }
783 #endif /* CONFIG_P2P */
784 }
785
786 return ssid;
787 }
788
789
wpas_wps_reassoc(struct wpa_supplicant * wpa_s,struct wpa_ssid * selected,const u8 * bssid)790 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
791 struct wpa_ssid *selected, const u8 *bssid)
792 {
793 struct wpa_ssid *ssid;
794 struct wpa_bss *bss;
795
796 wpa_s->known_wps_freq = 0;
797 if (bssid) {
798 bss = wpa_bss_get_bssid(wpa_s, bssid);
799 if (bss && bss->freq > 0) {
800 wpa_s->known_wps_freq = 1;
801 wpa_s->wps_freq = bss->freq;
802 }
803 }
804
805 if (wpa_s->current_ssid)
806 wpa_supplicant_deauthenticate(
807 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
808
809 /* Mark all other networks disabled and trigger reassociation */
810 ssid = wpa_s->conf->ssid;
811 while (ssid) {
812 int was_disabled = ssid->disabled;
813 /*
814 * In case the network object corresponds to a persistent group
815 * then do not send out network disabled signal. In addition,
816 * do not change disabled status of persistent network objects
817 * from 2 to 1 should we connect to another network.
818 */
819 if (was_disabled != 2) {
820 ssid->disabled = ssid != selected;
821 if (was_disabled != ssid->disabled)
822 wpas_notify_network_enabled_changed(wpa_s,
823 ssid);
824 }
825 ssid = ssid->next;
826 }
827 wpa_s->disconnected = 0;
828 wpa_s->reassociate = 1;
829 wpa_s->scan_runs = 0;
830 wpa_s->normal_scans = 0;
831 wpa_s->wps_success = 0;
832 wpa_s->blacklist_cleared = 0;
833 wpa_supplicant_req_scan(wpa_s, 0, 0);
834 }
835
836
wpas_wps_start_pbc(struct wpa_supplicant * wpa_s,const u8 * bssid,int p2p_group)837 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
838 int p2p_group)
839 {
840 struct wpa_ssid *ssid;
841 wpas_clear_wps(wpa_s);
842 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
843 if (ssid == NULL)
844 return -1;
845 ssid->temporary = 1;
846 ssid->p2p_group = p2p_group;
847 #ifdef CONFIG_P2P
848 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
849 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
850 if (ssid->ssid) {
851 ssid->ssid_len = wpa_s->go_params->ssid_len;
852 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
853 ssid->ssid_len);
854 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
855 "SSID", ssid->ssid, ssid->ssid_len);
856 }
857 }
858 #endif /* CONFIG_P2P */
859 wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0);
860 if (wpa_s->wps_fragment_size)
861 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
862 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
863 wpa_s, NULL);
864 wpas_wps_reassoc(wpa_s, ssid, bssid);
865 return 0;
866 }
867
868
wpas_wps_start_pin(struct wpa_supplicant * wpa_s,const u8 * bssid,const char * pin,int p2p_group,u16 dev_pw_id)869 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
870 const char *pin, int p2p_group, u16 dev_pw_id)
871 {
872 struct wpa_ssid *ssid;
873 char val[128];
874 unsigned int rpin = 0;
875
876 wpas_clear_wps(wpa_s);
877 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
878 if (ssid == NULL)
879 return -1;
880 ssid->temporary = 1;
881 ssid->p2p_group = p2p_group;
882 #ifdef CONFIG_P2P
883 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
884 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
885 if (ssid->ssid) {
886 ssid->ssid_len = wpa_s->go_params->ssid_len;
887 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
888 ssid->ssid_len);
889 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
890 "SSID", ssid->ssid, ssid->ssid_len);
891 }
892 }
893 #endif /* CONFIG_P2P */
894 if (pin)
895 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
896 pin, dev_pw_id);
897 else {
898 rpin = wps_generate_pin();
899 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
900 rpin, dev_pw_id);
901 }
902 wpa_config_set(ssid, "phase1", val, 0);
903 if (wpa_s->wps_fragment_size)
904 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
905 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
906 wpa_s, NULL);
907 wpas_wps_reassoc(wpa_s, ssid, bssid);
908 return rpin;
909 }
910
911
912 /* Cancel the wps pbc/pin requests */
wpas_wps_cancel(struct wpa_supplicant * wpa_s)913 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
914 {
915 #ifdef CONFIG_AP
916 if (wpa_s->ap_iface) {
917 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
918 return wpa_supplicant_ap_wps_cancel(wpa_s);
919 }
920 #endif /* CONFIG_AP */
921
922 if (wpa_s->wpa_state == WPA_SCANNING) {
923 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
924 wpa_supplicant_cancel_scan(wpa_s);
925 wpas_clear_wps(wpa_s);
926 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
927 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
928 "deauthenticate");
929 wpa_supplicant_deauthenticate(wpa_s,
930 WLAN_REASON_DEAUTH_LEAVING);
931 wpas_clear_wps(wpa_s);
932 }
933
934 return 0;
935 }
936
937
938 #ifdef CONFIG_WPS_OOB
wpas_wps_start_oob(struct wpa_supplicant * wpa_s,char * device_type,char * path,char * method,char * name)939 int wpas_wps_start_oob(struct wpa_supplicant *wpa_s, char *device_type,
940 char *path, char *method, char *name)
941 {
942 struct wps_context *wps = wpa_s->wps;
943 struct oob_device_data *oob_dev;
944
945 oob_dev = wps_get_oob_device(device_type);
946 if (oob_dev == NULL)
947 return -1;
948 oob_dev->device_path = path;
949 oob_dev->device_name = name;
950 wps->oob_conf.oob_method = wps_get_oob_method(method);
951
952 if (wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E) {
953 /*
954 * Use pre-configured DH keys in order to be able to write the
955 * key hash into the OOB file.
956 */
957 wpabuf_free(wps->dh_pubkey);
958 wpabuf_free(wps->dh_privkey);
959 wps->dh_privkey = NULL;
960 wps->dh_pubkey = NULL;
961 dh5_free(wps->dh_ctx);
962 wps->dh_ctx = dh5_init(&wps->dh_privkey, &wps->dh_pubkey);
963 wps->dh_pubkey = wpabuf_zeropad(wps->dh_pubkey, 192);
964 if (wps->dh_ctx == NULL || wps->dh_pubkey == NULL) {
965 wpa_printf(MSG_ERROR, "WPS: Failed to initialize "
966 "Diffie-Hellman handshake");
967 return -1;
968 }
969 }
970
971 if (wps->oob_conf.oob_method == OOB_METHOD_CRED)
972 wpas_clear_wps(wpa_s);
973
974 if (wps_process_oob(wps, oob_dev, 0) < 0)
975 return -1;
976
977 if ((wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ||
978 wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_R) &&
979 wpas_wps_start_pin(wpa_s, NULL,
980 wpabuf_head(wps->oob_conf.dev_password), 0,
981 DEV_PW_DEFAULT) < 0)
982 return -1;
983
984 return 0;
985 }
986 #endif /* CONFIG_WPS_OOB */
987
988
wpas_wps_start_reg(struct wpa_supplicant * wpa_s,const u8 * bssid,const char * pin,struct wps_new_ap_settings * settings)989 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
990 const char *pin, struct wps_new_ap_settings *settings)
991 {
992 struct wpa_ssid *ssid;
993 char val[200];
994 char *pos, *end;
995 int res;
996
997 if (!pin)
998 return -1;
999 wpas_clear_wps(wpa_s);
1000 ssid = wpas_wps_add_network(wpa_s, 1, bssid);
1001 if (ssid == NULL)
1002 return -1;
1003 ssid->temporary = 1;
1004 pos = val;
1005 end = pos + sizeof(val);
1006 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1007 if (res < 0 || res >= end - pos)
1008 return -1;
1009 pos += res;
1010 if (settings) {
1011 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1012 "new_encr=%s new_key=%s",
1013 settings->ssid_hex, settings->auth,
1014 settings->encr, settings->key_hex);
1015 if (res < 0 || res >= end - pos)
1016 return -1;
1017 pos += res;
1018 }
1019 res = os_snprintf(pos, end - pos, "\"");
1020 if (res < 0 || res >= end - pos)
1021 return -1;
1022 wpa_config_set(ssid, "phase1", val, 0);
1023 if (wpa_s->wps_fragment_size)
1024 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1025 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1026 wpa_s, NULL);
1027 wpas_wps_reassoc(wpa_s, ssid, bssid);
1028 return 0;
1029 }
1030
1031
wpas_wps_new_psk_cb(void * ctx,const u8 * mac_addr,const u8 * psk,size_t psk_len)1032 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1033 size_t psk_len)
1034 {
1035 wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1036 "STA " MACSTR, MAC2STR(mac_addr));
1037 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1038
1039 /* TODO */
1040
1041 return 0;
1042 }
1043
1044
wpas_wps_pin_needed_cb(void * ctx,const u8 * uuid_e,const struct wps_device_data * dev)1045 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1046 const struct wps_device_data *dev)
1047 {
1048 char uuid[40], txt[400];
1049 int len;
1050 char devtype[WPS_DEV_TYPE_BUFSIZE];
1051 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1052 return;
1053 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1054 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1055 " [%s|%s|%s|%s|%s|%s]",
1056 uuid, MAC2STR(dev->mac_addr), dev->device_name,
1057 dev->manufacturer, dev->model_name,
1058 dev->model_number, dev->serial_number,
1059 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1060 sizeof(devtype)));
1061 if (len > 0 && len < (int) sizeof(txt))
1062 wpa_printf(MSG_INFO, "%s", txt);
1063 }
1064
1065
wpas_wps_set_sel_reg_cb(void * ctx,int sel_reg,u16 dev_passwd_id,u16 sel_reg_config_methods)1066 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1067 u16 sel_reg_config_methods)
1068 {
1069 #ifdef CONFIG_WPS_ER
1070 struct wpa_supplicant *wpa_s = ctx;
1071
1072 if (wpa_s->wps_er == NULL)
1073 return;
1074 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1075 "dev_password_id=%u sel_reg_config_methods=0x%x",
1076 sel_reg, dev_passwd_id, sel_reg_config_methods);
1077 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1078 sel_reg_config_methods);
1079 #endif /* CONFIG_WPS_ER */
1080 }
1081
1082
wps_fix_config_methods(u16 config_methods)1083 static u16 wps_fix_config_methods(u16 config_methods)
1084 {
1085 #ifdef CONFIG_WPS2
1086 if ((config_methods &
1087 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1088 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1089 wpa_printf(MSG_INFO, "WPS: Converting display to "
1090 "virtual_display for WPS 2.0 compliance");
1091 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1092 }
1093 if ((config_methods &
1094 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1095 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1096 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1097 "virtual_push_button for WPS 2.0 compliance");
1098 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1099 }
1100 #endif /* CONFIG_WPS2 */
1101
1102 return config_methods;
1103 }
1104
1105
wpas_wps_set_uuid(struct wpa_supplicant * wpa_s,struct wps_context * wps)1106 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1107 struct wps_context *wps)
1108 {
1109 wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1110 if (is_nil_uuid(wpa_s->conf->uuid)) {
1111 struct wpa_supplicant *first;
1112 first = wpa_s->global->ifaces;
1113 while (first && first->next)
1114 first = first->next;
1115 if (first && first != wpa_s) {
1116 os_memcpy(wps->uuid, wpa_s->global->ifaces->wps->uuid,
1117 WPS_UUID_LEN);
1118 wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1119 "interface", wps->uuid, WPS_UUID_LEN);
1120 } else {
1121 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1122 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1123 "address", wps->uuid, WPS_UUID_LEN);
1124 }
1125 } else {
1126 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1127 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1128 wps->uuid, WPS_UUID_LEN);
1129 }
1130 }
1131
1132
wpas_wps_init(struct wpa_supplicant * wpa_s)1133 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1134 {
1135 struct wps_context *wps;
1136 struct wps_registrar_config rcfg;
1137 struct hostapd_hw_modes *modes;
1138 u16 m;
1139
1140 wps = os_zalloc(sizeof(*wps));
1141 if (wps == NULL)
1142 return -1;
1143
1144 wps->cred_cb = wpa_supplicant_wps_cred;
1145 wps->event_cb = wpa_supplicant_wps_event;
1146 wps->cb_ctx = wpa_s;
1147
1148 wps->dev.device_name = wpa_s->conf->device_name;
1149 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1150 wps->dev.model_name = wpa_s->conf->model_name;
1151 wps->dev.model_number = wpa_s->conf->model_number;
1152 wps->dev.serial_number = wpa_s->conf->serial_number;
1153 wps->config_methods =
1154 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1155 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1156 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1157 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1158 "methods are not allowed at the same time");
1159 os_free(wps);
1160 return -1;
1161 }
1162 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1163 wps->dev.config_methods = wps->config_methods;
1164 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1165 WPS_DEV_TYPE_LEN);
1166
1167 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1168 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1169 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1170
1171 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1172 modes = wpa_s->hw.modes;
1173 if (modes) {
1174 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1175 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1176 modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1177 wps->dev.rf_bands |= WPS_RF_24GHZ;
1178 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1179 wps->dev.rf_bands |= WPS_RF_50GHZ;
1180 }
1181 }
1182 if (wps->dev.rf_bands == 0) {
1183 /*
1184 * Default to claiming support for both bands if the driver
1185 * does not provide support for fetching supported bands.
1186 */
1187 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1188 }
1189 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1190 wpas_wps_set_uuid(wpa_s, wps);
1191
1192 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1193 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1194
1195 os_memset(&rcfg, 0, sizeof(rcfg));
1196 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1197 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1198 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1199 rcfg.cb_ctx = wpa_s;
1200
1201 wps->registrar = wps_registrar_init(wps, &rcfg);
1202 if (wps->registrar == NULL) {
1203 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1204 os_free(wps);
1205 return -1;
1206 }
1207
1208 wpa_s->wps = wps;
1209
1210 return 0;
1211 }
1212
1213
wpas_wps_deinit(struct wpa_supplicant * wpa_s)1214 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1215 {
1216 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1217
1218 if (wpa_s->wps == NULL)
1219 return;
1220
1221 #ifdef CONFIG_WPS_ER
1222 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1223 wpa_s->wps_er = NULL;
1224 #endif /* CONFIG_WPS_ER */
1225
1226 wps_registrar_deinit(wpa_s->wps->registrar);
1227 wpabuf_free(wpa_s->wps->dh_pubkey);
1228 wpabuf_free(wpa_s->wps->dh_privkey);
1229 wpabuf_free(wpa_s->wps->oob_conf.pubkey_hash);
1230 wpabuf_free(wpa_s->wps->oob_conf.dev_password);
1231 os_free(wpa_s->wps->network_key);
1232 os_free(wpa_s->wps);
1233 wpa_s->wps = NULL;
1234 }
1235
1236
wpas_wps_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_scan_res * bss)1237 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1238 struct wpa_ssid *ssid, struct wpa_scan_res *bss)
1239 {
1240 struct wpabuf *wps_ie;
1241
1242 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1243 return -1;
1244
1245 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1246 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1247 if (!wps_ie) {
1248 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1249 return 0;
1250 }
1251
1252 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1253 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1254 "without active PBC Registrar");
1255 wpabuf_free(wps_ie);
1256 return 0;
1257 }
1258
1259 /* TODO: overlap detection */
1260 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1261 "(Active PBC)");
1262 wpabuf_free(wps_ie);
1263 return 1;
1264 }
1265
1266 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1267 if (!wps_ie) {
1268 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1269 return 0;
1270 }
1271
1272 /*
1273 * Start with WPS APs that advertise our address as an
1274 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1275 * allow any WPS AP after couple of scans since some APs do not
1276 * set Selected Registrar attribute properly when using
1277 * external Registrar.
1278 */
1279 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1280 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1281 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1282 "without active PIN Registrar");
1283 wpabuf_free(wps_ie);
1284 return 0;
1285 }
1286 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1287 } else {
1288 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1289 "(Authorized MAC or Active PIN)");
1290 }
1291 wpabuf_free(wps_ie);
1292 return 1;
1293 }
1294
1295 if (wps_ie) {
1296 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1297 wpabuf_free(wps_ie);
1298 return 1;
1299 }
1300
1301 return -1;
1302 }
1303
1304
wpas_wps_ssid_wildcard_ok(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_scan_res * bss)1305 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1306 struct wpa_ssid *ssid,
1307 struct wpa_scan_res *bss)
1308 {
1309 struct wpabuf *wps_ie = NULL;
1310 int ret = 0;
1311
1312 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1313 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1314 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1315 /* allow wildcard SSID for WPS PBC */
1316 ret = 1;
1317 }
1318 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1319 wps_ie = wpa_scan_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1320 if (wps_ie &&
1321 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1322 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1323 /* allow wildcard SSID for WPS PIN */
1324 ret = 1;
1325 }
1326 }
1327
1328 if (!ret && ssid->bssid_set &&
1329 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1330 /* allow wildcard SSID due to hardcoded BSSID match */
1331 ret = 1;
1332 }
1333
1334 #ifdef CONFIG_WPS_STRICT
1335 if (wps_ie) {
1336 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1337 0, bss->bssid) < 0)
1338 ret = 0;
1339 if (bss->beacon_ie_len) {
1340 struct wpabuf *bcn_wps;
1341 bcn_wps = wpa_scan_get_vendor_ie_multi_beacon(
1342 bss, WPS_IE_VENDOR_TYPE);
1343 if (bcn_wps == NULL) {
1344 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1345 "missing from AP Beacon");
1346 ret = 0;
1347 } else {
1348 if (wps_validate_beacon(wps_ie) < 0)
1349 ret = 0;
1350 wpabuf_free(bcn_wps);
1351 }
1352 }
1353 }
1354 #endif /* CONFIG_WPS_STRICT */
1355
1356 wpabuf_free(wps_ie);
1357
1358 return ret;
1359 }
1360
1361
wpas_wps_scan_pbc_overlap(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1362 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1363 struct wpa_bss *selected, struct wpa_ssid *ssid)
1364 {
1365 const u8 *sel_uuid, *uuid;
1366 struct wpabuf *wps_ie;
1367 int ret = 0;
1368 struct wpa_bss *bss;
1369
1370 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1371 return 0;
1372
1373 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1374 "present in scan results; selected BSSID " MACSTR,
1375 MAC2STR(selected->bssid));
1376
1377 /* Make sure that only one AP is in active PBC mode */
1378 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1379 if (wps_ie) {
1380 sel_uuid = wps_get_uuid_e(wps_ie);
1381 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1382 sel_uuid, UUID_LEN);
1383 } else {
1384 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1385 "WPS IE?!");
1386 sel_uuid = NULL;
1387 }
1388
1389 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1390 struct wpabuf *ie;
1391 if (bss == selected)
1392 continue;
1393 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1394 if (!ie)
1395 continue;
1396 if (!wps_is_selected_pbc_registrar(ie)) {
1397 wpabuf_free(ie);
1398 continue;
1399 }
1400 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1401 MACSTR, MAC2STR(bss->bssid));
1402 uuid = wps_get_uuid_e(ie);
1403 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1404 uuid, UUID_LEN);
1405 if (sel_uuid == NULL || uuid == NULL ||
1406 os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
1407 ret = 1; /* PBC overlap */
1408 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1409 MACSTR " and " MACSTR,
1410 MAC2STR(selected->bssid),
1411 MAC2STR(bss->bssid));
1412 wpabuf_free(ie);
1413 break;
1414 }
1415
1416 /* TODO: verify that this is reasonable dual-band situation */
1417
1418 wpabuf_free(ie);
1419 }
1420
1421 wpabuf_free(wps_ie);
1422
1423 return ret;
1424 }
1425
1426
wpas_wps_notify_scan_results(struct wpa_supplicant * wpa_s)1427 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1428 {
1429 struct wpa_bss *bss;
1430 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1431
1432 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1433 return;
1434
1435 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1436 struct wpabuf *ie;
1437 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1438 if (!ie)
1439 continue;
1440 if (wps_is_selected_pbc_registrar(ie))
1441 pbc++;
1442 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1443 auth++;
1444 else if (wps_is_selected_pin_registrar(ie))
1445 pin++;
1446 else
1447 wps++;
1448 wpabuf_free(ie);
1449 }
1450
1451 if (pbc)
1452 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1453 else if (auth)
1454 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1455 else if (pin)
1456 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1457 else if (wps)
1458 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1459 }
1460
1461
wpas_wps_searching(struct wpa_supplicant * wpa_s)1462 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1463 {
1464 struct wpa_ssid *ssid;
1465
1466 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1467 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1468 return 1;
1469 }
1470
1471 return 0;
1472 }
1473
1474
wpas_wps_scan_result_text(const u8 * ies,size_t ies_len,char * buf,char * end)1475 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1476 char *end)
1477 {
1478 struct wpabuf *wps_ie;
1479 int ret;
1480
1481 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1482 if (wps_ie == NULL)
1483 return 0;
1484
1485 ret = wps_attr_text(wps_ie, buf, end);
1486 wpabuf_free(wps_ie);
1487 return ret;
1488 }
1489
1490
wpas_wps_er_start(struct wpa_supplicant * wpa_s,const char * filter)1491 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1492 {
1493 #ifdef CONFIG_WPS_ER
1494 if (wpa_s->wps_er) {
1495 wps_er_refresh(wpa_s->wps_er);
1496 return 0;
1497 }
1498 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1499 if (wpa_s->wps_er == NULL)
1500 return -1;
1501 return 0;
1502 #else /* CONFIG_WPS_ER */
1503 return 0;
1504 #endif /* CONFIG_WPS_ER */
1505 }
1506
1507
wpas_wps_er_stop(struct wpa_supplicant * wpa_s)1508 int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1509 {
1510 #ifdef CONFIG_WPS_ER
1511 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1512 wpa_s->wps_er = NULL;
1513 #endif /* CONFIG_WPS_ER */
1514 return 0;
1515 }
1516
1517
1518 #ifdef CONFIG_WPS_ER
wpas_wps_er_add_pin(struct wpa_supplicant * wpa_s,const u8 * addr,const char * uuid,const char * pin)1519 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1520 const char *uuid, const char *pin)
1521 {
1522 u8 u[UUID_LEN];
1523 int any = 0;
1524
1525 if (os_strcmp(uuid, "any") == 0)
1526 any = 1;
1527 else if (uuid_str2bin(uuid, u))
1528 return -1;
1529 return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1530 any ? NULL : u,
1531 (const u8 *) pin, os_strlen(pin), 300);
1532 }
1533
1534
wpas_wps_er_pbc(struct wpa_supplicant * wpa_s,const char * uuid)1535 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1536 {
1537 u8 u[UUID_LEN];
1538
1539 if (uuid_str2bin(uuid, u))
1540 return -1;
1541 return wps_er_pbc(wpa_s->wps_er, u);
1542 }
1543
1544
wpas_wps_er_learn(struct wpa_supplicant * wpa_s,const char * uuid,const char * pin)1545 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1546 const char *pin)
1547 {
1548 u8 u[UUID_LEN];
1549
1550 if (uuid_str2bin(uuid, u))
1551 return -1;
1552 return wps_er_learn(wpa_s->wps_er, u, (const u8 *) pin,
1553 os_strlen(pin));
1554 }
1555
1556
wpas_wps_er_set_config(struct wpa_supplicant * wpa_s,const char * uuid,int id)1557 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1558 int id)
1559 {
1560 u8 u[UUID_LEN];
1561 struct wpa_ssid *ssid;
1562 struct wps_credential cred;
1563
1564 if (uuid_str2bin(uuid, u))
1565 return -1;
1566 ssid = wpa_config_get_network(wpa_s->conf, id);
1567 if (ssid == NULL || ssid->ssid == NULL)
1568 return -1;
1569
1570 os_memset(&cred, 0, sizeof(cred));
1571 if (ssid->ssid_len > 32)
1572 return -1;
1573 os_memcpy(cred.ssid, ssid->ssid, ssid->ssid_len);
1574 cred.ssid_len = ssid->ssid_len;
1575 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1576 cred.auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1577 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1578 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1579 cred.encr_type = WPS_ENCR_AES;
1580 else
1581 cred.encr_type = WPS_ENCR_TKIP;
1582 if (ssid->passphrase) {
1583 cred.key_len = os_strlen(ssid->passphrase);
1584 if (cred.key_len >= 64)
1585 return -1;
1586 os_memcpy(cred.key, ssid->passphrase, cred.key_len);
1587 } else if (ssid->psk_set) {
1588 cred.key_len = 32;
1589 os_memcpy(cred.key, ssid->psk, 32);
1590 } else
1591 return -1;
1592 } else {
1593 cred.auth_type = WPS_AUTH_OPEN;
1594 cred.encr_type = WPS_ENCR_NONE;
1595 }
1596 return wps_er_set_config(wpa_s->wps_er, u, &cred);
1597 }
1598
1599
wpas_wps_er_config(struct wpa_supplicant * wpa_s,const char * uuid,const char * pin,struct wps_new_ap_settings * settings)1600 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1601 const char *pin, struct wps_new_ap_settings *settings)
1602 {
1603 u8 u[UUID_LEN];
1604 struct wps_credential cred;
1605 size_t len;
1606
1607 if (uuid_str2bin(uuid, u))
1608 return -1;
1609 if (settings->ssid_hex == NULL || settings->auth == NULL ||
1610 settings->encr == NULL || settings->key_hex == NULL)
1611 return -1;
1612
1613 os_memset(&cred, 0, sizeof(cred));
1614 len = os_strlen(settings->ssid_hex);
1615 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1616 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1617 return -1;
1618 cred.ssid_len = len / 2;
1619
1620 len = os_strlen(settings->key_hex);
1621 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1622 hexstr2bin(settings->key_hex, cred.key, len / 2))
1623 return -1;
1624 cred.key_len = len / 2;
1625
1626 if (os_strcmp(settings->auth, "OPEN") == 0)
1627 cred.auth_type = WPS_AUTH_OPEN;
1628 else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1629 cred.auth_type = WPS_AUTH_WPAPSK;
1630 else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1631 cred.auth_type = WPS_AUTH_WPA2PSK;
1632 else
1633 return -1;
1634
1635 if (os_strcmp(settings->encr, "NONE") == 0)
1636 cred.encr_type = WPS_ENCR_NONE;
1637 else if (os_strcmp(settings->encr, "WEP") == 0)
1638 cred.encr_type = WPS_ENCR_WEP;
1639 else if (os_strcmp(settings->encr, "TKIP") == 0)
1640 cred.encr_type = WPS_ENCR_TKIP;
1641 else if (os_strcmp(settings->encr, "CCMP") == 0)
1642 cred.encr_type = WPS_ENCR_AES;
1643 else
1644 return -1;
1645
1646 return wps_er_config(wpa_s->wps_er, u, (const u8 *) pin,
1647 os_strlen(pin), &cred);
1648 }
1649
1650
1651 static int callbacks_pending = 0;
1652
wpas_wps_terminate_cb(void * ctx)1653 static void wpas_wps_terminate_cb(void *ctx)
1654 {
1655 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
1656 if (--callbacks_pending <= 0)
1657 eloop_terminate();
1658 }
1659 #endif /* CONFIG_WPS_ER */
1660
1661
wpas_wps_terminate_pending(struct wpa_supplicant * wpa_s)1662 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1663 {
1664 #ifdef CONFIG_WPS_ER
1665 if (wpa_s->wps_er) {
1666 callbacks_pending++;
1667 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1668 wpa_s->wps_er = NULL;
1669 return 1;
1670 }
1671 #endif /* CONFIG_WPS_ER */
1672 return 0;
1673 }
1674
1675
wpas_wps_in_progress(struct wpa_supplicant * wpa_s)1676 int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1677 {
1678 struct wpa_ssid *ssid;
1679
1680 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1681 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1682 return 1;
1683 }
1684
1685 return 0;
1686 }
1687
1688
wpas_wps_update_config(struct wpa_supplicant * wpa_s)1689 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1690 {
1691 struct wps_context *wps = wpa_s->wps;
1692
1693 if (wps == NULL)
1694 return;
1695
1696 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1697 wps->config_methods = wps_config_methods_str2bin(
1698 wpa_s->conf->config_methods);
1699 if ((wps->config_methods &
1700 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1701 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1702 wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1703 "config methods are not allowed at the "
1704 "same time");
1705 wps->config_methods &= ~WPS_CONFIG_LABEL;
1706 }
1707 }
1708 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1709
1710 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1711 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1712 WPS_DEV_TYPE_LEN);
1713
1714 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
1715 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1716 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1717 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
1718 }
1719
1720 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1721 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1722
1723 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1724 wpas_wps_set_uuid(wpa_s, wps);
1725
1726 if (wpa_s->conf->changed_parameters &
1727 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
1728 /* Update pointers to make sure they refer current values */
1729 wps->dev.device_name = wpa_s->conf->device_name;
1730 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1731 wps->dev.model_name = wpa_s->conf->model_name;
1732 wps->dev.model_number = wpa_s->conf->model_number;
1733 wps->dev.serial_number = wpa_s->conf->serial_number;
1734 }
1735 }
1736