1 /*
2 * wpa_supplicant / WPS integration
3 * Copyright (c) 2008-2014, 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/random.h"
15 #include "crypto/dh_group5.h"
16 #include "common/ieee802_11_defs.h"
17 #include "common/ieee802_11_common.h"
18 #include "common/wpa_common.h"
19 #include "common/wpa_ctrl.h"
20 #include "eap_common/eap_wsc_common.h"
21 #include "eap_peer/eap.h"
22 #include "eapol_supp/eapol_supp_sm.h"
23 #include "rsn_supp/wpa.h"
24 #include "wps/wps_attr_parse.h"
25 #include "config.h"
26 #include "wpa_supplicant_i.h"
27 #include "driver_i.h"
28 #include "notify.h"
29 #include "blacklist.h"
30 #include "bss.h"
31 #include "scan.h"
32 #include "ap.h"
33 #include "p2p/p2p.h"
34 #include "p2p_supplicant.h"
35 #include "wps_supplicant.h"
36
37
38 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
39 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
40 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
41
42 /*
43 * The minimum time in seconds before trying to associate to a WPS PIN AP that
44 * does not have Selected Registrar TRUE.
45 */
46 #ifndef WPS_PIN_TIME_IGNORE_SEL_REG
47 #define WPS_PIN_TIME_IGNORE_SEL_REG 5
48 #endif /* WPS_PIN_TIME_IGNORE_SEL_REG */
49
50 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
51 static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
52
53
wpas_wps_clear_ap_info(struct wpa_supplicant * wpa_s)54 static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s)
55 {
56 os_free(wpa_s->wps_ap);
57 wpa_s->wps_ap = NULL;
58 wpa_s->num_wps_ap = 0;
59 wpa_s->wps_ap_iter = 0;
60 }
61
62
wpas_wps_assoc_with_cred(void * eloop_ctx,void * timeout_ctx)63 static void wpas_wps_assoc_with_cred(void *eloop_ctx, void *timeout_ctx)
64 {
65 struct wpa_supplicant *wpa_s = eloop_ctx;
66 int use_fast_assoc = timeout_ctx != NULL;
67
68 wpa_printf(MSG_DEBUG, "WPS: Continuing association after eapol_cb");
69 if (!use_fast_assoc ||
70 wpa_supplicant_fast_associate(wpa_s) != 1)
71 wpa_supplicant_req_scan(wpa_s, 0, 0);
72 }
73
74
wpas_wps_assoc_with_cred_cancel(struct wpa_supplicant * wpa_s)75 static void wpas_wps_assoc_with_cred_cancel(struct wpa_supplicant *wpa_s)
76 {
77 eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 0);
78 eloop_cancel_timeout(wpas_wps_assoc_with_cred, wpa_s, (void *) 1);
79 }
80
81
wpas_wps_eapol_cb(struct wpa_supplicant * wpa_s)82 int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
83 {
84 if (wpas_p2p_wps_eapol_cb(wpa_s) > 0)
85 return 1;
86
87 if (!wpa_s->wps_success &&
88 wpa_s->current_ssid &&
89 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
90 const u8 *bssid = wpa_s->bssid;
91 if (is_zero_ether_addr(bssid))
92 bssid = wpa_s->pending_bssid;
93
94 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
95 " did not succeed - continue trying to find "
96 "suitable AP", MAC2STR(bssid));
97 wpa_blacklist_add(wpa_s, bssid);
98
99 wpa_supplicant_deauthenticate(wpa_s,
100 WLAN_REASON_DEAUTH_LEAVING);
101 wpa_s->reassociate = 1;
102 wpa_supplicant_req_scan(wpa_s,
103 wpa_s->blacklist_cleared ? 5 : 0, 0);
104 wpa_s->blacklist_cleared = 0;
105 return 1;
106 }
107
108 wpas_wps_clear_ap_info(wpa_s);
109 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
110 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
111 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
112
113 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
114 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
115 int disabled = wpa_s->current_ssid->disabled;
116 unsigned int freq = wpa_s->assoc_freq;
117 struct wpa_bss *bss;
118 struct wpa_ssid *ssid = NULL;
119 int use_fast_assoc = 0;
120
121 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
122 "try to associate with the received credential "
123 "(freq=%u)", freq);
124 wpa_s->own_disconnect_req = 1;
125 wpa_supplicant_deauthenticate(wpa_s,
126 WLAN_REASON_DEAUTH_LEAVING);
127 if (disabled) {
128 wpa_printf(MSG_DEBUG, "WPS: Current network is "
129 "disabled - wait for user to enable");
130 return 1;
131 }
132 wpa_s->after_wps = 5;
133 wpa_s->wps_freq = freq;
134 wpa_s->normal_scans = 0;
135 wpa_s->reassociate = 1;
136
137 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association "
138 "without a new scan can be used");
139 bss = wpa_supplicant_pick_network(wpa_s, &ssid);
140 if (bss) {
141 struct wpabuf *wps;
142 struct wps_parse_attr attr;
143
144 wps = wpa_bss_get_vendor_ie_multi(bss,
145 WPS_IE_VENDOR_TYPE);
146 if (wps && wps_parse_msg(wps, &attr) == 0 &&
147 attr.wps_state &&
148 *attr.wps_state == WPS_STATE_CONFIGURED)
149 use_fast_assoc = 1;
150 wpabuf_free(wps);
151 }
152
153 /*
154 * Complete the next step from an eloop timeout to allow pending
155 * driver events related to the disconnection to be processed
156 * first. This makes it less likely for disconnection event to
157 * cause problems with the following connection.
158 */
159 wpa_printf(MSG_DEBUG, "WPS: Continue association from timeout");
160 wpas_wps_assoc_with_cred_cancel(wpa_s);
161 eloop_register_timeout(0, 10000,
162 wpas_wps_assoc_with_cred, wpa_s,
163 use_fast_assoc ? (void *) 1 :
164 (void *) 0);
165 return 1;
166 }
167
168 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
169 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
170 "for external credential processing");
171 wpas_clear_wps(wpa_s);
172 wpa_s->own_disconnect_req = 1;
173 wpa_supplicant_deauthenticate(wpa_s,
174 WLAN_REASON_DEAUTH_LEAVING);
175 return 1;
176 }
177
178 return 0;
179 }
180
181
wpas_wps_security_workaround(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,const struct wps_credential * cred)182 static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
183 struct wpa_ssid *ssid,
184 const struct wps_credential *cred)
185 {
186 struct wpa_driver_capa capa;
187 struct wpa_bss *bss;
188 const u8 *ie;
189 struct wpa_ie_data adv;
190 int wpa2 = 0, ccmp = 0;
191
192 /*
193 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
194 * case they are configured for mixed mode operation (WPA+WPA2 and
195 * TKIP+CCMP). Try to use scan results to figure out whether the AP
196 * actually supports stronger security and select that if the client
197 * has support for it, too.
198 */
199
200 if (wpa_drv_get_capa(wpa_s, &capa))
201 return; /* Unknown what driver supports */
202
203 if (ssid->ssid == NULL)
204 return;
205 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
206 if (!bss)
207 bss = wpa_bss_get(wpa_s, wpa_s->bssid,
208 ssid->ssid, ssid->ssid_len);
209 if (bss == NULL) {
210 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
211 "table - use credential as-is");
212 return;
213 }
214
215 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
216
217 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
218 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
219 wpa2 = 1;
220 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
221 ccmp = 1;
222 } else {
223 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
224 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
225 adv.pairwise_cipher & WPA_CIPHER_CCMP)
226 ccmp = 1;
227 }
228
229 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
230 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
231 /*
232 * TODO: This could be the initial AP configuration and the
233 * Beacon contents could change shortly. Should request a new
234 * scan and delay addition of the network until the updated
235 * scan results are available.
236 */
237 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
238 "support - use credential as-is");
239 return;
240 }
241
242 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
243 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
244 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
245 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
246 "based on scan results");
247 if (wpa_s->conf->ap_scan == 1)
248 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
249 else
250 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
251 }
252
253 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
254 (ssid->proto & WPA_PROTO_WPA) &&
255 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
256 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
257 "based on scan results");
258 if (wpa_s->conf->ap_scan == 1)
259 ssid->proto |= WPA_PROTO_RSN;
260 else
261 ssid->proto = WPA_PROTO_RSN;
262 }
263 }
264
265
wpas_wps_remove_dup_network(struct wpa_supplicant * wpa_s,struct wpa_ssid * new_ssid)266 static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s,
267 struct wpa_ssid *new_ssid)
268 {
269 struct wpa_ssid *ssid, *next;
270
271 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid;
272 ssid = next, next = ssid ? ssid->next : NULL) {
273 /*
274 * new_ssid has already been added to the list in
275 * wpas_wps_add_network(), so skip it.
276 */
277 if (ssid == new_ssid)
278 continue;
279
280 if (ssid->bssid_set || new_ssid->bssid_set) {
281 if (ssid->bssid_set != new_ssid->bssid_set)
282 continue;
283 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) !=
284 0)
285 continue;
286 }
287
288 /* compare SSID */
289 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len)
290 continue;
291
292 if (ssid->ssid && new_ssid->ssid) {
293 if (os_memcmp(ssid->ssid, new_ssid->ssid,
294 ssid->ssid_len) != 0)
295 continue;
296 } else if (ssid->ssid || new_ssid->ssid)
297 continue;
298
299 /* compare security parameters */
300 if (ssid->auth_alg != new_ssid->auth_alg ||
301 ssid->key_mgmt != new_ssid->key_mgmt ||
302 (ssid->group_cipher != new_ssid->group_cipher &&
303 !(ssid->group_cipher & new_ssid->group_cipher &
304 WPA_CIPHER_CCMP)))
305 continue;
306
307 /*
308 * Some existing WPS APs will send two creds in case they are
309 * configured for mixed mode operation (WPA+WPA2 and TKIP+CCMP).
310 * Try to merge these two creds if they are received in the same
311 * M8 message.
312 */
313 if (ssid->wps_run && ssid->wps_run == new_ssid->wps_run &&
314 wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) {
315 if (new_ssid->passphrase && ssid->passphrase &&
316 os_strcmp(new_ssid->passphrase, ssid->passphrase) !=
317 0) {
318 wpa_printf(MSG_DEBUG,
319 "WPS: M8 Creds with different passphrase - do not merge");
320 continue;
321 }
322
323 if (new_ssid->psk_set &&
324 (!ssid->psk_set ||
325 os_memcmp(new_ssid->psk, ssid->psk, 32) != 0)) {
326 wpa_printf(MSG_DEBUG,
327 "WPS: M8 Creds with different PSK - do not merge");
328 continue;
329 }
330
331 if ((new_ssid->passphrase && !ssid->passphrase) ||
332 (!new_ssid->passphrase && ssid->passphrase)) {
333 wpa_printf(MSG_DEBUG,
334 "WPS: M8 Creds with different passphrase/PSK type - do not merge");
335 continue;
336 }
337
338 wpa_printf(MSG_DEBUG,
339 "WPS: Workaround - merge likely WPA/WPA2-mixed mode creds in same M8 message");
340 new_ssid->proto |= ssid->proto;
341 new_ssid->pairwise_cipher |= ssid->pairwise_cipher;
342 } else {
343 /*
344 * proto and pairwise_cipher difference matter for
345 * non-mixed-mode creds.
346 */
347 if (ssid->proto != new_ssid->proto ||
348 ssid->pairwise_cipher != new_ssid->pairwise_cipher)
349 continue;
350 }
351
352 /* Remove the duplicated older network entry. */
353 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id);
354 wpas_notify_network_removed(wpa_s, ssid);
355 if (wpa_s->current_ssid == ssid)
356 wpa_s->current_ssid = NULL;
357 wpa_config_remove_network(wpa_s->conf, ssid->id);
358 }
359 }
360
361
wpa_supplicant_wps_cred(void * ctx,const struct wps_credential * cred)362 static int wpa_supplicant_wps_cred(void *ctx,
363 const struct wps_credential *cred)
364 {
365 struct wpa_supplicant *wpa_s = ctx;
366 struct wpa_ssid *ssid = wpa_s->current_ssid;
367 u16 auth_type;
368 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
369 int registrar = 0;
370 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
371
372 if ((wpa_s->conf->wps_cred_processing == 1 ||
373 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
374 size_t blen = cred->cred_attr_len * 2 + 1;
375 char *buf = os_malloc(blen);
376 if (buf) {
377 wpa_snprintf_hex(buf, blen,
378 cred->cred_attr, cred->cred_attr_len);
379 wpa_msg(wpa_s, MSG_INFO, "%s%s",
380 WPS_EVENT_CRED_RECEIVED, buf);
381 os_free(buf);
382 }
383
384 wpas_notify_wps_credential(wpa_s, cred);
385 } else
386 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
387
388 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
389 cred->cred_attr, cred->cred_attr_len);
390
391 if (wpa_s->conf->wps_cred_processing == 1)
392 return 0;
393
394 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
395 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
396 cred->auth_type);
397 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
398 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
399 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
400 cred->key, cred->key_len);
401 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
402 MAC2STR(cred->mac_addr));
403
404 auth_type = cred->auth_type;
405 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
406 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
407 "auth_type into WPA2PSK");
408 auth_type = WPS_AUTH_WPA2PSK;
409 }
410
411 if (auth_type != WPS_AUTH_OPEN &&
412 auth_type != WPS_AUTH_WPAPSK &&
413 auth_type != WPS_AUTH_WPA2PSK) {
414 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
415 "unsupported authentication type 0x%x",
416 auth_type);
417 return 0;
418 }
419
420 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
421 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
422 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
423 "invalid Network Key length %lu",
424 (unsigned long) cred->key_len);
425 return -1;
426 }
427 }
428
429 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
430 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
431 "on the received credential");
432 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
433 if (ssid->eap.identity &&
434 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
435 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
436 WSC_ID_REGISTRAR_LEN) == 0)
437 registrar = 1;
438 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
439 os_free(ssid->eap.identity);
440 ssid->eap.identity = NULL;
441 ssid->eap.identity_len = 0;
442 os_free(ssid->eap.phase1);
443 ssid->eap.phase1 = NULL;
444 os_free(ssid->eap.eap_methods);
445 ssid->eap.eap_methods = NULL;
446 if (!ssid->p2p_group) {
447 ssid->temporary = 0;
448 ssid->bssid_set = 0;
449 }
450 ssid->disabled_until.sec = 0;
451 ssid->disabled_until.usec = 0;
452 ssid->auth_failures = 0;
453 } else {
454 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
455 "received credential");
456 ssid = wpa_config_add_network(wpa_s->conf);
457 if (ssid == NULL)
458 return -1;
459 if (wpa_s->current_ssid) {
460 /*
461 * Should the GO issue multiple credentials for some
462 * reason, each credential should be marked as a
463 * temporary P2P group similarly to the one that gets
464 * marked as such based on the pre-configured values
465 * used for the WPS network block.
466 */
467 ssid->p2p_group = wpa_s->current_ssid->p2p_group;
468 ssid->temporary = wpa_s->current_ssid->temporary;
469 }
470 wpas_notify_network_added(wpa_s, ssid);
471 }
472
473 wpa_config_set_network_defaults(ssid);
474 ssid->wps_run = wpa_s->wps_run;
475
476 os_free(ssid->ssid);
477 ssid->ssid = os_malloc(cred->ssid_len);
478 if (ssid->ssid) {
479 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
480 ssid->ssid_len = cred->ssid_len;
481 }
482
483 switch (cred->encr_type) {
484 case WPS_ENCR_NONE:
485 break;
486 case WPS_ENCR_TKIP:
487 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
488 break;
489 case WPS_ENCR_AES:
490 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
491 if (wpa_s->drv_capa_known &&
492 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP)) {
493 ssid->pairwise_cipher |= WPA_CIPHER_GCMP;
494 ssid->group_cipher |= WPA_CIPHER_GCMP;
495 }
496 if (wpa_s->drv_capa_known &&
497 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_GCMP_256)) {
498 ssid->pairwise_cipher |= WPA_CIPHER_GCMP_256;
499 ssid->group_cipher |= WPA_CIPHER_GCMP_256;
500 }
501 if (wpa_s->drv_capa_known &&
502 (wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_CCMP_256)) {
503 ssid->pairwise_cipher |= WPA_CIPHER_CCMP_256;
504 ssid->group_cipher |= WPA_CIPHER_CCMP_256;
505 }
506 break;
507 }
508
509 switch (auth_type) {
510 case WPS_AUTH_OPEN:
511 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
512 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
513 ssid->proto = 0;
514 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
515 if (registrar) {
516 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
517 "id=%d - Credentials for an open "
518 "network disabled by default - use "
519 "'select_network %d' to enable",
520 ssid->id, ssid->id);
521 ssid->disabled = 1;
522 }
523 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
524 break;
525 case WPS_AUTH_WPAPSK:
526 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
527 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
528 ssid->proto = WPA_PROTO_WPA;
529 break;
530 case WPS_AUTH_WPA2PSK:
531 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
532 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
533 if (wpa_s->conf->wps_cred_add_sae &&
534 cred->key_len != 2 * PMK_LEN) {
535 ssid->key_mgmt |= WPA_KEY_MGMT_SAE;
536 #ifdef CONFIG_IEEE80211W
537 ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
538 #endif /* CONFIG_IEEE80211W */
539 }
540 ssid->proto = WPA_PROTO_RSN;
541 break;
542 }
543
544 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
545 if (cred->key_len == 2 * PMK_LEN) {
546 if (hexstr2bin((const char *) cred->key, ssid->psk,
547 PMK_LEN)) {
548 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
549 "Key");
550 return -1;
551 }
552 ssid->psk_set = 1;
553 ssid->export_keys = 1;
554 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
555 os_free(ssid->passphrase);
556 ssid->passphrase = os_malloc(cred->key_len + 1);
557 if (ssid->passphrase == NULL)
558 return -1;
559 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
560 ssid->passphrase[cred->key_len] = '\0';
561 wpa_config_update_psk(ssid);
562 ssid->export_keys = 1;
563 } else {
564 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
565 "length %lu",
566 (unsigned long) cred->key_len);
567 return -1;
568 }
569 }
570 ssid->priority = wpa_s->conf->wps_priority;
571
572 wpas_wps_security_workaround(wpa_s, ssid, cred);
573
574 wpas_wps_remove_dup_network(wpa_s, ssid);
575
576 #ifndef CONFIG_NO_CONFIG_WRITE
577 if (wpa_s->conf->update_config &&
578 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
579 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
580 return -1;
581 }
582 #endif /* CONFIG_NO_CONFIG_WRITE */
583
584 if (ssid->priority)
585 wpa_config_update_prio_list(wpa_s->conf);
586
587 /*
588 * Optimize the post-WPS scan based on the channel used during
589 * the provisioning in case EAP-Failure is not received.
590 */
591 wpa_s->after_wps = 5;
592 wpa_s->wps_freq = wpa_s->assoc_freq;
593
594 return 0;
595 }
596
597
wpa_supplicant_wps_event_m2d(struct wpa_supplicant * wpa_s,struct wps_event_m2d * m2d)598 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
599 struct wps_event_m2d *m2d)
600 {
601 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
602 "dev_password_id=%d config_error=%d",
603 m2d->dev_password_id, m2d->config_error);
604 wpas_notify_wps_event_m2d(wpa_s, m2d);
605 #ifdef CONFIG_P2P
606 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s) {
607 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_M2D
608 "dev_password_id=%d config_error=%d",
609 m2d->dev_password_id, m2d->config_error);
610 }
611 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
612 /*
613 * Notify P2P from eloop timeout to avoid issues with the
614 * interface getting removed while processing a message.
615 */
616 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, wpa_s,
617 NULL);
618 }
619 #endif /* CONFIG_P2P */
620 }
621
622
wpas_wps_clear_timeout(void * eloop_ctx,void * timeout_ctx)623 static void wpas_wps_clear_timeout(void *eloop_ctx, void *timeout_ctx)
624 {
625 struct wpa_supplicant *wpa_s = eloop_ctx;
626 wpa_printf(MSG_DEBUG, "WPS: Clear WPS network from timeout");
627 wpas_clear_wps(wpa_s);
628 }
629
630
wpa_supplicant_wps_event_fail(struct wpa_supplicant * wpa_s,struct wps_event_fail * fail)631 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
632 struct wps_event_fail *fail)
633 {
634 if (fail->error_indication > 0 &&
635 fail->error_indication < NUM_WPS_EI_VALUES) {
636 wpa_msg(wpa_s, MSG_INFO,
637 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
638 fail->msg, fail->config_error, fail->error_indication,
639 wps_ei_str(fail->error_indication));
640 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s)
641 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL
642 "msg=%d config_error=%d reason=%d (%s)",
643 fail->msg, fail->config_error,
644 fail->error_indication,
645 wps_ei_str(fail->error_indication));
646 } else {
647 wpa_msg(wpa_s, MSG_INFO,
648 WPS_EVENT_FAIL "msg=%d config_error=%d",
649 fail->msg, fail->config_error);
650 if (wpa_s->p2pdev && wpa_s->p2pdev != wpa_s)
651 wpa_msg(wpa_s->p2pdev, MSG_INFO, WPS_EVENT_FAIL
652 "msg=%d config_error=%d",
653 fail->msg, fail->config_error);
654 }
655
656 /*
657 * Need to allow WPS processing to complete, e.g., by sending WSC_NACK.
658 */
659 wpa_printf(MSG_DEBUG, "WPS: Register timeout to clear WPS network");
660 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
661 eloop_register_timeout(0, 100000, wpas_wps_clear_timeout, wpa_s, NULL);
662
663 wpas_notify_wps_event_fail(wpa_s, fail);
664 wpas_p2p_wps_failed(wpa_s, fail);
665 }
666
667
668 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
669
wpas_wps_reenable_networks(struct wpa_supplicant * wpa_s)670 static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
671 {
672 struct wpa_ssid *ssid;
673 int changed = 0;
674
675 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
676
677 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
678 if (ssid->disabled_for_connect && ssid->disabled) {
679 ssid->disabled_for_connect = 0;
680 ssid->disabled = 0;
681 wpas_notify_network_enabled_changed(wpa_s, ssid);
682 changed++;
683 }
684 }
685
686 if (changed) {
687 #ifndef CONFIG_NO_CONFIG_WRITE
688 if (wpa_s->conf->update_config &&
689 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
690 wpa_printf(MSG_DEBUG, "WPS: Failed to update "
691 "configuration");
692 }
693 #endif /* CONFIG_NO_CONFIG_WRITE */
694 }
695 }
696
697
wpas_wps_reenable_networks_cb(void * eloop_ctx,void * timeout_ctx)698 static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
699 {
700 struct wpa_supplicant *wpa_s = eloop_ctx;
701 /* Enable the networks disabled during wpas_wps_reassoc */
702 wpas_wps_reenable_networks(wpa_s);
703 }
704
705
wpas_wps_reenable_networks_pending(struct wpa_supplicant * wpa_s)706 int wpas_wps_reenable_networks_pending(struct wpa_supplicant *wpa_s)
707 {
708 return eloop_is_timeout_registered(wpas_wps_reenable_networks_cb,
709 wpa_s, NULL);
710 }
711
712
wpa_supplicant_wps_event_success(struct wpa_supplicant * wpa_s)713 static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
714 {
715 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
716 wpa_s->wps_success = 1;
717 wpas_notify_wps_event_success(wpa_s);
718 if (wpa_s->current_ssid)
719 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1);
720 wpa_s->extra_blacklist_count = 0;
721
722 /*
723 * Enable the networks disabled during wpas_wps_reassoc after 10
724 * seconds. The 10 seconds timer is to allow the data connection to be
725 * formed before allowing other networks to be selected.
726 */
727 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
728 NULL);
729
730 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
731 }
732
733
wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant * wpa_s,struct wps_event_er_ap * ap)734 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
735 struct wps_event_er_ap *ap)
736 {
737 char uuid_str[100];
738 char dev_type[WPS_DEV_TYPE_BUFSIZE];
739
740 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
741 if (ap->pri_dev_type)
742 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
743 sizeof(dev_type));
744 else
745 dev_type[0] = '\0';
746
747 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
748 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
749 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
750 ap->friendly_name ? ap->friendly_name : "",
751 ap->manufacturer ? ap->manufacturer : "",
752 ap->model_description ? ap->model_description : "",
753 ap->model_name ? ap->model_name : "",
754 ap->manufacturer_url ? ap->manufacturer_url : "",
755 ap->model_url ? ap->model_url : "");
756 }
757
758
wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant * wpa_s,struct wps_event_er_ap * ap)759 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
760 struct wps_event_er_ap *ap)
761 {
762 char uuid_str[100];
763 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
764 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
765 }
766
767
wpa_supplicant_wps_event_er_enrollee_add(struct wpa_supplicant * wpa_s,struct wps_event_er_enrollee * enrollee)768 static void wpa_supplicant_wps_event_er_enrollee_add(
769 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
770 {
771 char uuid_str[100];
772 char dev_type[WPS_DEV_TYPE_BUFSIZE];
773
774 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
775 if (enrollee->pri_dev_type)
776 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
777 sizeof(dev_type));
778 else
779 dev_type[0] = '\0';
780
781 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
782 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
783 "|%s|%s|%s|%s|%s|",
784 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
785 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
786 enrollee->dev_name ? enrollee->dev_name : "",
787 enrollee->manufacturer ? enrollee->manufacturer : "",
788 enrollee->model_name ? enrollee->model_name : "",
789 enrollee->model_number ? enrollee->model_number : "",
790 enrollee->serial_number ? enrollee->serial_number : "");
791 }
792
793
wpa_supplicant_wps_event_er_enrollee_remove(struct wpa_supplicant * wpa_s,struct wps_event_er_enrollee * enrollee)794 static void wpa_supplicant_wps_event_er_enrollee_remove(
795 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
796 {
797 char uuid_str[100];
798 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
799 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
800 uuid_str, MAC2STR(enrollee->mac_addr));
801 }
802
803
wpa_supplicant_wps_event_er_ap_settings(struct wpa_supplicant * wpa_s,struct wps_event_er_ap_settings * ap_settings)804 static void wpa_supplicant_wps_event_er_ap_settings(
805 struct wpa_supplicant *wpa_s,
806 struct wps_event_er_ap_settings *ap_settings)
807 {
808 char uuid_str[100];
809 char key_str[65];
810 const struct wps_credential *cred = ap_settings->cred;
811
812 key_str[0] = '\0';
813 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
814 if (cred->key_len >= 8 && cred->key_len <= 64) {
815 os_memcpy(key_str, cred->key, cred->key_len);
816 key_str[cred->key_len] = '\0';
817 }
818 }
819
820 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
821 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
822 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
823 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
824 "key=%s",
825 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
826 cred->auth_type, cred->encr_type, key_str);
827 }
828
829
wpa_supplicant_wps_event_er_set_sel_reg(struct wpa_supplicant * wpa_s,struct wps_event_er_set_selected_registrar * ev)830 static void wpa_supplicant_wps_event_er_set_sel_reg(
831 struct wpa_supplicant *wpa_s,
832 struct wps_event_er_set_selected_registrar *ev)
833 {
834 char uuid_str[100];
835
836 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
837 switch (ev->state) {
838 case WPS_ER_SET_SEL_REG_START:
839 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
840 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
841 "sel_reg_config_methods=0x%x",
842 uuid_str, ev->sel_reg, ev->dev_passwd_id,
843 ev->sel_reg_config_methods);
844 break;
845 case WPS_ER_SET_SEL_REG_DONE:
846 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
847 "uuid=%s state=DONE", uuid_str);
848 break;
849 case WPS_ER_SET_SEL_REG_FAILED:
850 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
851 "uuid=%s state=FAILED", uuid_str);
852 break;
853 }
854 }
855
856
wpa_supplicant_wps_event(void * ctx,enum wps_event event,union wps_event_data * data)857 static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
858 union wps_event_data *data)
859 {
860 struct wpa_supplicant *wpa_s = ctx;
861 switch (event) {
862 case WPS_EV_M2D:
863 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
864 break;
865 case WPS_EV_FAIL:
866 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
867 break;
868 case WPS_EV_SUCCESS:
869 wpa_supplicant_wps_event_success(wpa_s);
870 break;
871 case WPS_EV_PWD_AUTH_FAIL:
872 #ifdef CONFIG_AP
873 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
874 wpa_supplicant_ap_pwd_auth_fail(wpa_s);
875 #endif /* CONFIG_AP */
876 break;
877 case WPS_EV_PBC_OVERLAP:
878 break;
879 case WPS_EV_PBC_TIMEOUT:
880 break;
881 case WPS_EV_PBC_ACTIVE:
882 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ACTIVE);
883 break;
884 case WPS_EV_PBC_DISABLE:
885 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_DISABLE);
886 break;
887 case WPS_EV_ER_AP_ADD:
888 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
889 break;
890 case WPS_EV_ER_AP_REMOVE:
891 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
892 break;
893 case WPS_EV_ER_ENROLLEE_ADD:
894 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
895 &data->enrollee);
896 break;
897 case WPS_EV_ER_ENROLLEE_REMOVE:
898 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
899 &data->enrollee);
900 break;
901 case WPS_EV_ER_AP_SETTINGS:
902 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
903 &data->ap_settings);
904 break;
905 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
906 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
907 &data->set_sel_reg);
908 break;
909 case WPS_EV_AP_PIN_SUCCESS:
910 break;
911 }
912 }
913
914
wpa_supplicant_wps_rf_band(void * ctx)915 static int wpa_supplicant_wps_rf_band(void *ctx)
916 {
917 struct wpa_supplicant *wpa_s = ctx;
918
919 if (!wpa_s->current_ssid || !wpa_s->assoc_freq)
920 return 0;
921
922 return (wpa_s->assoc_freq > 50000) ? WPS_RF_60GHZ :
923 (wpa_s->assoc_freq > 2484) ? WPS_RF_50GHZ : WPS_RF_24GHZ;
924 }
925
926
wpas_wps_get_req_type(struct wpa_ssid * ssid)927 enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
928 {
929 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
930 eap_is_wps_pin_enrollee(&ssid->eap))
931 return WPS_REQ_ENROLLEE;
932 else
933 return WPS_REQ_REGISTRAR;
934 }
935
936
wpas_clear_wps(struct wpa_supplicant * wpa_s)937 static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
938 {
939 int id;
940 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
941
942 wpa_s->after_wps = 0;
943 wpa_s->known_wps_freq = 0;
944
945 prev_current = wpa_s->current_ssid;
946
947 /* Enable the networks disabled during wpas_wps_reassoc */
948 wpas_wps_reenable_networks(wpa_s);
949
950 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
951 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
952
953 /* Remove any existing WPS network from configuration */
954 ssid = wpa_s->conf->ssid;
955 while (ssid) {
956 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
957 if (ssid == wpa_s->current_ssid) {
958 wpa_s->own_disconnect_req = 1;
959 wpa_supplicant_deauthenticate(
960 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
961 }
962 id = ssid->id;
963 remove_ssid = ssid;
964 } else
965 id = -1;
966 ssid = ssid->next;
967 if (id >= 0) {
968 if (prev_current == remove_ssid) {
969 wpa_sm_set_config(wpa_s->wpa, NULL);
970 eapol_sm_notify_config(wpa_s->eapol, NULL,
971 NULL);
972 }
973 wpas_notify_network_removed(wpa_s, remove_ssid);
974 wpa_config_remove_network(wpa_s->conf, id);
975 }
976 }
977
978 wpas_wps_clear_ap_info(wpa_s);
979 }
980
981
wpas_wps_timeout(void * eloop_ctx,void * timeout_ctx)982 static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
983 {
984 struct wpa_supplicant *wpa_s = eloop_ctx;
985 union wps_event_data data;
986
987 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
988 "out");
989 os_memset(&data, 0, sizeof(data));
990 data.fail.config_error = WPS_CFG_MSG_TIMEOUT;
991 data.fail.error_indication = WPS_EI_NO_ERROR;
992 /*
993 * Call wpas_notify_wps_event_fail() directly instead of through
994 * wpa_supplicant_wps_event() which would end up registering unnecessary
995 * timeouts (those are only for the case where the failure happens
996 * during an EAP-WSC exchange).
997 */
998 wpas_notify_wps_event_fail(wpa_s, &data.fail);
999 wpas_clear_wps(wpa_s);
1000 }
1001
1002
wpas_wps_add_network(struct wpa_supplicant * wpa_s,int registrar,const u8 * dev_addr,const u8 * bssid)1003 static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
1004 int registrar, const u8 *dev_addr,
1005 const u8 *bssid)
1006 {
1007 struct wpa_ssid *ssid;
1008
1009 ssid = wpa_config_add_network(wpa_s->conf);
1010 if (ssid == NULL)
1011 return NULL;
1012 wpas_notify_network_added(wpa_s, ssid);
1013 wpa_config_set_network_defaults(ssid);
1014 ssid->temporary = 1;
1015 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
1016 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
1017 wpa_config_set(ssid, "identity", registrar ?
1018 "\"" WSC_ID_REGISTRAR "\"" :
1019 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
1020 wpas_notify_network_removed(wpa_s, ssid);
1021 wpa_config_remove_network(wpa_s->conf, ssid->id);
1022 return NULL;
1023 }
1024
1025 #ifdef CONFIG_P2P
1026 if (dev_addr)
1027 os_memcpy(ssid->go_p2p_dev_addr, dev_addr, ETH_ALEN);
1028 #endif /* CONFIG_P2P */
1029
1030 if (bssid) {
1031 #ifndef CONFIG_P2P
1032 struct wpa_bss *bss;
1033 int count = 0;
1034 #endif /* CONFIG_P2P */
1035
1036 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
1037 ssid->bssid_set = 1;
1038
1039 /*
1040 * Note: With P2P, the SSID may change at the time the WPS
1041 * provisioning is started, so better not filter the AP based
1042 * on the current SSID in the scan results.
1043 */
1044 #ifndef CONFIG_P2P
1045 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1046 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
1047 continue;
1048
1049 os_free(ssid->ssid);
1050 ssid->ssid = os_memdup(bss->ssid, bss->ssid_len);
1051 if (ssid->ssid == NULL)
1052 break;
1053 ssid->ssid_len = bss->ssid_len;
1054 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
1055 "scan results",
1056 ssid->ssid, ssid->ssid_len);
1057 count++;
1058 }
1059
1060 if (count > 1) {
1061 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
1062 "for the AP; use wildcard");
1063 os_free(ssid->ssid);
1064 ssid->ssid = NULL;
1065 ssid->ssid_len = 0;
1066 }
1067 #endif /* CONFIG_P2P */
1068 }
1069
1070 return ssid;
1071 }
1072
1073
wpas_wps_temp_disable(struct wpa_supplicant * wpa_s,struct wpa_ssid * selected)1074 static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s,
1075 struct wpa_ssid *selected)
1076 {
1077 struct wpa_ssid *ssid;
1078
1079 if (wpa_s->current_ssid) {
1080 wpa_s->own_disconnect_req = 1;
1081 wpa_supplicant_deauthenticate(
1082 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1083 }
1084
1085 /* Mark all other networks disabled and trigger reassociation */
1086 ssid = wpa_s->conf->ssid;
1087 while (ssid) {
1088 int was_disabled = ssid->disabled;
1089 ssid->disabled_for_connect = 0;
1090 /*
1091 * In case the network object corresponds to a persistent group
1092 * then do not send out network disabled signal. In addition,
1093 * do not change disabled status of persistent network objects
1094 * from 2 to 1 should we connect to another network.
1095 */
1096 if (was_disabled != 2) {
1097 ssid->disabled = ssid != selected;
1098 if (was_disabled != ssid->disabled) {
1099 if (ssid->disabled)
1100 ssid->disabled_for_connect = 1;
1101 wpas_notify_network_enabled_changed(wpa_s,
1102 ssid);
1103 }
1104 }
1105 ssid = ssid->next;
1106 }
1107 }
1108
1109
wpas_wps_reassoc(struct wpa_supplicant * wpa_s,struct wpa_ssid * selected,const u8 * bssid,int freq)1110 static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
1111 struct wpa_ssid *selected, const u8 *bssid,
1112 int freq)
1113 {
1114 struct wpa_bss *bss;
1115
1116 wpa_s->wps_run++;
1117 if (wpa_s->wps_run == 0)
1118 wpa_s->wps_run++;
1119 wpa_s->after_wps = 0;
1120 wpa_s->known_wps_freq = 0;
1121 if (freq) {
1122 wpa_s->after_wps = 5;
1123 wpa_s->wps_freq = freq;
1124 } else if (bssid) {
1125 bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1126 if (bss && bss->freq > 0) {
1127 wpa_s->known_wps_freq = 1;
1128 wpa_s->wps_freq = bss->freq;
1129 }
1130 }
1131
1132 wpas_wps_temp_disable(wpa_s, selected);
1133
1134 wpa_s->disconnected = 0;
1135 wpa_s->reassociate = 1;
1136 wpa_s->scan_runs = 0;
1137 wpa_s->normal_scans = 0;
1138 wpa_s->wps_success = 0;
1139 wpa_s->blacklist_cleared = 0;
1140
1141 wpa_supplicant_cancel_sched_scan(wpa_s);
1142 wpa_supplicant_req_scan(wpa_s, 0, 0);
1143 }
1144
1145
wpas_wps_start_pbc(struct wpa_supplicant * wpa_s,const u8 * bssid,int p2p_group,int multi_ap_backhaul_sta)1146 int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
1147 int p2p_group, int multi_ap_backhaul_sta)
1148 {
1149 struct wpa_ssid *ssid;
1150 char phase1[32];
1151
1152 #ifdef CONFIG_AP
1153 if (wpa_s->ap_iface) {
1154 wpa_printf(MSG_DEBUG,
1155 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
1156 return -1;
1157 }
1158 #endif /* CONFIG_AP */
1159 wpas_clear_wps(wpa_s);
1160 ssid = wpas_wps_add_network(wpa_s, 0, NULL, bssid);
1161 if (ssid == NULL)
1162 return -1;
1163 ssid->temporary = 1;
1164 ssid->p2p_group = p2p_group;
1165 /*
1166 * When starting a regular WPS process (not P2P group formation)
1167 * the registrar/final station can be either AP or PCP
1168 * so use a "don't care" value for the pbss flag.
1169 */
1170 if (!p2p_group)
1171 ssid->pbss = 2;
1172 #ifdef CONFIG_P2P
1173 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1174 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1175 if (ssid->ssid) {
1176 ssid->ssid_len = wpa_s->go_params->ssid_len;
1177 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1178 ssid->ssid_len);
1179 if (wpa_s->go_params->freq > 56160) {
1180 /* P2P in 60 GHz uses PBSS */
1181 ssid->pbss = 1;
1182 }
1183 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1184 "SSID", ssid->ssid, ssid->ssid_len);
1185 }
1186 }
1187 #endif /* CONFIG_P2P */
1188 os_snprintf(phase1, sizeof(phase1), "pbc=1%s",
1189 multi_ap_backhaul_sta ? " multi_ap=1" : "");
1190 if (wpa_config_set_quoted(ssid, "phase1", phase1) < 0)
1191 return -1;
1192 if (wpa_s->wps_fragment_size)
1193 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1194 if (multi_ap_backhaul_sta)
1195 ssid->multi_ap_backhaul_sta = 1;
1196 wpa_supplicant_wps_event(wpa_s, WPS_EV_PBC_ACTIVE, NULL);
1197 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1198 wpa_s, NULL);
1199 wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
1200 return 0;
1201 }
1202
1203
wpas_wps_start_dev_pw(struct wpa_supplicant * wpa_s,const u8 * dev_addr,const u8 * bssid,const char * pin,int p2p_group,u16 dev_pw_id,const u8 * peer_pubkey_hash,const u8 * ssid_val,size_t ssid_len,int freq)1204 static int wpas_wps_start_dev_pw(struct wpa_supplicant *wpa_s,
1205 const u8 *dev_addr, const u8 *bssid,
1206 const char *pin, int p2p_group, u16 dev_pw_id,
1207 const u8 *peer_pubkey_hash,
1208 const u8 *ssid_val, size_t ssid_len, int freq)
1209 {
1210 struct wpa_ssid *ssid;
1211 char val[128 + 2 * WPS_OOB_PUBKEY_HASH_LEN];
1212 unsigned int rpin = 0;
1213 char hash[2 * WPS_OOB_PUBKEY_HASH_LEN + 10];
1214
1215 #ifdef CONFIG_AP
1216 if (wpa_s->ap_iface) {
1217 wpa_printf(MSG_DEBUG,
1218 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
1219 return -1;
1220 }
1221 #endif /* CONFIG_AP */
1222 wpas_clear_wps(wpa_s);
1223 if (bssid && is_zero_ether_addr(bssid))
1224 bssid = NULL;
1225 ssid = wpas_wps_add_network(wpa_s, 0, dev_addr, bssid);
1226 if (ssid == NULL) {
1227 wpa_printf(MSG_DEBUG, "WPS: Could not add network");
1228 return -1;
1229 }
1230 ssid->temporary = 1;
1231 ssid->p2p_group = p2p_group;
1232 /*
1233 * When starting a regular WPS process (not P2P group formation)
1234 * the registrar/final station can be either AP or PCP
1235 * so use a "don't care" value for the pbss flag.
1236 */
1237 if (!p2p_group)
1238 ssid->pbss = 2;
1239 if (ssid_val) {
1240 ssid->ssid = os_malloc(ssid_len);
1241 if (ssid->ssid) {
1242 os_memcpy(ssid->ssid, ssid_val, ssid_len);
1243 ssid->ssid_len = ssid_len;
1244 }
1245 }
1246 if (peer_pubkey_hash) {
1247 os_memcpy(hash, " pkhash=", 8);
1248 wpa_snprintf_hex_uppercase(hash + 8, sizeof(hash) - 8,
1249 peer_pubkey_hash,
1250 WPS_OOB_PUBKEY_HASH_LEN);
1251 } else {
1252 hash[0] = '\0';
1253 }
1254 #ifdef CONFIG_P2P
1255 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1256 os_free(ssid->ssid);
1257 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1258 if (ssid->ssid) {
1259 ssid->ssid_len = wpa_s->go_params->ssid_len;
1260 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1261 ssid->ssid_len);
1262 if (wpa_s->go_params->freq > 56160) {
1263 /* P2P in 60 GHz uses PBSS */
1264 ssid->pbss = 1;
1265 }
1266 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1267 "SSID", ssid->ssid, ssid->ssid_len);
1268 }
1269 }
1270 #endif /* CONFIG_P2P */
1271 if (pin)
1272 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u%s\"",
1273 pin, dev_pw_id, hash);
1274 else if (pin == NULL && dev_pw_id == DEV_PW_NFC_CONNECTION_HANDOVER) {
1275 os_snprintf(val, sizeof(val), "\"dev_pw_id=%u%s\"",
1276 dev_pw_id, hash);
1277 } else {
1278 if (wps_generate_pin(&rpin) < 0) {
1279 wpa_printf(MSG_DEBUG, "WPS: Could not generate PIN");
1280 return -1;
1281 }
1282 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u%s\"",
1283 rpin, dev_pw_id, hash);
1284 }
1285 if (wpa_config_set(ssid, "phase1", val, 0) < 0) {
1286 wpa_printf(MSG_DEBUG, "WPS: Failed to set phase1 '%s'", val);
1287 return -1;
1288 }
1289 if (wpa_s->wps_fragment_size)
1290 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1291 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1292 wpa_s, NULL);
1293 wpa_s->wps_ap_iter = 1;
1294 wpas_wps_reassoc(wpa_s, ssid, bssid, freq);
1295 return rpin;
1296 }
1297
1298
wpas_wps_start_pin(struct wpa_supplicant * wpa_s,const u8 * bssid,const char * pin,int p2p_group,u16 dev_pw_id)1299 int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
1300 const char *pin, int p2p_group, u16 dev_pw_id)
1301 {
1302 os_get_reltime(&wpa_s->wps_pin_start_time);
1303 return wpas_wps_start_dev_pw(wpa_s, NULL, bssid, pin, p2p_group,
1304 dev_pw_id, NULL, NULL, 0, 0);
1305 }
1306
1307
wpas_wps_pbc_overlap(struct wpa_supplicant * wpa_s)1308 void wpas_wps_pbc_overlap(struct wpa_supplicant *wpa_s)
1309 {
1310 union wps_event_data data;
1311
1312 os_memset(&data, 0, sizeof(data));
1313 data.fail.config_error = WPS_CFG_MULTIPLE_PBC_DETECTED;
1314 data.fail.error_indication = WPS_EI_NO_ERROR;
1315 /*
1316 * Call wpas_notify_wps_event_fail() directly instead of through
1317 * wpa_supplicant_wps_event() which would end up registering unnecessary
1318 * timeouts (those are only for the case where the failure happens
1319 * during an EAP-WSC exchange).
1320 */
1321 wpas_notify_wps_event_fail(wpa_s, &data.fail);
1322 }
1323
1324 /* Cancel the wps pbc/pin requests */
wpas_wps_cancel(struct wpa_supplicant * wpa_s)1325 int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
1326 {
1327 #ifdef CONFIG_AP
1328 if (wpa_s->ap_iface) {
1329 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
1330 return wpa_supplicant_ap_wps_cancel(wpa_s);
1331 }
1332 #endif /* CONFIG_AP */
1333
1334 if (wpa_s->wpa_state == WPA_SCANNING ||
1335 wpa_s->wpa_state == WPA_DISCONNECTED) {
1336 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
1337 wpa_supplicant_cancel_scan(wpa_s);
1338 wpas_clear_wps(wpa_s);
1339 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
1340 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
1341 "deauthenticate");
1342 wpa_s->own_disconnect_req = 1;
1343 wpa_supplicant_deauthenticate(wpa_s,
1344 WLAN_REASON_DEAUTH_LEAVING);
1345 wpas_clear_wps(wpa_s);
1346 } else {
1347 wpas_wps_reenable_networks(wpa_s);
1348 wpas_wps_clear_ap_info(wpa_s);
1349 if (eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL) >
1350 0)
1351 wpas_clear_wps(wpa_s);
1352 }
1353
1354 wpa_s->after_wps = 0;
1355
1356 return 0;
1357 }
1358
1359
wpas_wps_start_reg(struct wpa_supplicant * wpa_s,const u8 * bssid,const char * pin,struct wps_new_ap_settings * settings)1360 int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
1361 const char *pin, struct wps_new_ap_settings *settings)
1362 {
1363 struct wpa_ssid *ssid;
1364 char val[200];
1365 char *pos, *end;
1366 int res;
1367
1368 #ifdef CONFIG_AP
1369 if (wpa_s->ap_iface) {
1370 wpa_printf(MSG_DEBUG,
1371 "WPS: Reject request to start Registrar(as station) operation while AP mode is enabled");
1372 return -1;
1373 }
1374 #endif /* CONFIG_AP */
1375 if (!pin)
1376 return -1;
1377 wpas_clear_wps(wpa_s);
1378 ssid = wpas_wps_add_network(wpa_s, 1, NULL, bssid);
1379 if (ssid == NULL)
1380 return -1;
1381 ssid->temporary = 1;
1382 pos = val;
1383 end = pos + sizeof(val);
1384 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1385 if (os_snprintf_error(end - pos, res))
1386 return -1;
1387 pos += res;
1388 if (settings) {
1389 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1390 "new_encr=%s new_key=%s",
1391 settings->ssid_hex, settings->auth,
1392 settings->encr, settings->key_hex);
1393 if (os_snprintf_error(end - pos, res))
1394 return -1;
1395 pos += res;
1396 }
1397 res = os_snprintf(pos, end - pos, "\"");
1398 if (os_snprintf_error(end - pos, res))
1399 return -1;
1400 if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1401 return -1;
1402 if (wpa_s->wps_fragment_size)
1403 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
1404 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1405 wpa_s, NULL);
1406 wpas_wps_reassoc(wpa_s, ssid, bssid, 0);
1407 return 0;
1408 }
1409
1410
wpas_wps_new_psk_cb(void * ctx,const u8 * mac_addr,const u8 * p2p_dev_addr,const u8 * psk,size_t psk_len)1411 static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr,
1412 const u8 *p2p_dev_addr, const u8 *psk,
1413 size_t psk_len)
1414 {
1415 if (is_zero_ether_addr(p2p_dev_addr)) {
1416 wpa_printf(MSG_DEBUG,
1417 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR,
1418 MAC2STR(mac_addr));
1419 } else {
1420 wpa_printf(MSG_DEBUG,
1421 "Received new WPA/WPA2-PSK from WPS for STA " MACSTR
1422 " P2P Device Addr " MACSTR,
1423 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
1424 }
1425 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1426
1427 /* TODO */
1428
1429 return 0;
1430 }
1431
1432
wpas_wps_pin_needed_cb(void * ctx,const u8 * uuid_e,const struct wps_device_data * dev)1433 static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1434 const struct wps_device_data *dev)
1435 {
1436 char uuid[40], txt[400];
1437 int len;
1438 char devtype[WPS_DEV_TYPE_BUFSIZE];
1439 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1440 return;
1441 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1442 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1443 " [%s|%s|%s|%s|%s|%s]",
1444 uuid, MAC2STR(dev->mac_addr), dev->device_name,
1445 dev->manufacturer, dev->model_name,
1446 dev->model_number, dev->serial_number,
1447 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1448 sizeof(devtype)));
1449 if (!os_snprintf_error(sizeof(txt), len))
1450 wpa_printf(MSG_INFO, "%s", txt);
1451 }
1452
1453
wpas_wps_set_sel_reg_cb(void * ctx,int sel_reg,u16 dev_passwd_id,u16 sel_reg_config_methods)1454 static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1455 u16 sel_reg_config_methods)
1456 {
1457 #ifdef CONFIG_WPS_ER
1458 struct wpa_supplicant *wpa_s = ctx;
1459
1460 if (wpa_s->wps_er == NULL)
1461 return;
1462 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1463 "dev_password_id=%u sel_reg_config_methods=0x%x",
1464 sel_reg, dev_passwd_id, sel_reg_config_methods);
1465 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1466 sel_reg_config_methods);
1467 #endif /* CONFIG_WPS_ER */
1468 }
1469
1470
wps_fix_config_methods(u16 config_methods)1471 static u16 wps_fix_config_methods(u16 config_methods)
1472 {
1473 if ((config_methods &
1474 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1475 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1476 wpa_printf(MSG_INFO, "WPS: Converting display to "
1477 "virtual_display for WPS 2.0 compliance");
1478 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1479 }
1480 if ((config_methods &
1481 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1482 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1483 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1484 "virtual_push_button for WPS 2.0 compliance");
1485 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1486 }
1487
1488 return config_methods;
1489 }
1490
1491
wpas_wps_set_uuid(struct wpa_supplicant * wpa_s,struct wps_context * wps)1492 static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1493 struct wps_context *wps)
1494 {
1495 char buf[50];
1496 const char *src;
1497
1498 if (is_nil_uuid(wpa_s->conf->uuid)) {
1499 struct wpa_supplicant *first;
1500 first = wpa_s->global->ifaces;
1501 while (first && first->next)
1502 first = first->next;
1503 if (first && first != wpa_s) {
1504 if (wps != wpa_s->global->ifaces->wps)
1505 os_memcpy(wps->uuid,
1506 wpa_s->global->ifaces->wps->uuid,
1507 WPS_UUID_LEN);
1508 src = "from the first interface";
1509 } else if (wpa_s->conf->auto_uuid == 1) {
1510 uuid_random(wps->uuid);
1511 src = "based on random data";
1512 } else {
1513 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1514 src = "based on MAC address";
1515 }
1516 } else {
1517 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1518 src = "based on configuration";
1519 }
1520
1521 uuid_bin2str(wps->uuid, buf, sizeof(buf));
1522 wpa_dbg(wpa_s, MSG_DEBUG, "WPS: UUID %s: %s", src, buf);
1523 }
1524
1525
wpas_wps_set_vendor_ext_m1(struct wpa_supplicant * wpa_s,struct wps_context * wps)1526 static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1527 struct wps_context *wps)
1528 {
1529 wpabuf_free(wps->dev.vendor_ext_m1);
1530 wps->dev.vendor_ext_m1 = NULL;
1531
1532 if (wpa_s->conf->wps_vendor_ext_m1) {
1533 wps->dev.vendor_ext_m1 =
1534 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1535 if (!wps->dev.vendor_ext_m1) {
1536 wpa_printf(MSG_ERROR, "WPS: Cannot "
1537 "allocate memory for vendor_ext_m1");
1538 }
1539 }
1540 }
1541
1542
wpas_wps_init(struct wpa_supplicant * wpa_s)1543 int wpas_wps_init(struct wpa_supplicant *wpa_s)
1544 {
1545 struct wps_context *wps;
1546 struct wps_registrar_config rcfg;
1547 struct hostapd_hw_modes *modes;
1548 u16 m;
1549
1550 wps = os_zalloc(sizeof(*wps));
1551 if (wps == NULL)
1552 return -1;
1553
1554 wps->cred_cb = wpa_supplicant_wps_cred;
1555 wps->event_cb = wpa_supplicant_wps_event;
1556 wps->rf_band_cb = wpa_supplicant_wps_rf_band;
1557 wps->cb_ctx = wpa_s;
1558
1559 wps->dev.device_name = wpa_s->conf->device_name;
1560 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1561 wps->dev.model_name = wpa_s->conf->model_name;
1562 wps->dev.model_number = wpa_s->conf->model_number;
1563 wps->dev.serial_number = wpa_s->conf->serial_number;
1564 wps->config_methods =
1565 wps_config_methods_str2bin(wpa_s->conf->config_methods);
1566 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1567 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1568 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1569 "methods are not allowed at the same time");
1570 os_free(wps);
1571 return -1;
1572 }
1573 wps->config_methods = wps_fix_config_methods(wps->config_methods);
1574 wps->dev.config_methods = wps->config_methods;
1575 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1576 WPS_DEV_TYPE_LEN);
1577
1578 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1579 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1580 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
1581
1582 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1583
1584 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1585 modes = wpa_s->hw.modes;
1586 if (modes) {
1587 for (m = 0; m < wpa_s->hw.num_modes; m++) {
1588 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1589 modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1590 wps->dev.rf_bands |= WPS_RF_24GHZ;
1591 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1592 wps->dev.rf_bands |= WPS_RF_50GHZ;
1593 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211AD)
1594 wps->dev.rf_bands |= WPS_RF_60GHZ;
1595 }
1596 }
1597 if (wps->dev.rf_bands == 0) {
1598 /*
1599 * Default to claiming support for both bands if the driver
1600 * does not provide support for fetching supported bands.
1601 */
1602 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1603 }
1604 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
1605 wpas_wps_set_uuid(wpa_s, wps);
1606
1607 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1608 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1609
1610 os_memset(&rcfg, 0, sizeof(rcfg));
1611 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1612 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
1613 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
1614 rcfg.cb_ctx = wpa_s;
1615
1616 wps->registrar = wps_registrar_init(wps, &rcfg);
1617 if (wps->registrar == NULL) {
1618 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1619 os_free(wps);
1620 return -1;
1621 }
1622
1623 wpa_s->wps = wps;
1624
1625 return 0;
1626 }
1627
1628
1629 #ifdef CONFIG_WPS_ER
wpas_wps_nfc_clear(struct wps_context * wps)1630 static void wpas_wps_nfc_clear(struct wps_context *wps)
1631 {
1632 wps->ap_nfc_dev_pw_id = 0;
1633 wpabuf_free(wps->ap_nfc_dh_pubkey);
1634 wps->ap_nfc_dh_pubkey = NULL;
1635 wpabuf_free(wps->ap_nfc_dh_privkey);
1636 wps->ap_nfc_dh_privkey = NULL;
1637 wpabuf_free(wps->ap_nfc_dev_pw);
1638 wps->ap_nfc_dev_pw = NULL;
1639 }
1640 #endif /* CONFIG_WPS_ER */
1641
1642
wpas_wps_deinit(struct wpa_supplicant * wpa_s)1643 void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1644 {
1645 wpas_wps_assoc_with_cred_cancel(wpa_s);
1646 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
1647 eloop_cancel_timeout(wpas_wps_clear_timeout, wpa_s, NULL);
1648 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
1649 wpas_wps_clear_ap_info(wpa_s);
1650
1651 #ifdef CONFIG_P2P
1652 eloop_cancel_timeout(wpas_p2p_pbc_overlap_cb, wpa_s, NULL);
1653 #endif /* CONFIG_P2P */
1654
1655 if (wpa_s->wps == NULL)
1656 return;
1657
1658 #ifdef CONFIG_WPS_ER
1659 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1660 wpa_s->wps_er = NULL;
1661 wpas_wps_nfc_clear(wpa_s->wps);
1662 #endif /* CONFIG_WPS_ER */
1663
1664 wps_registrar_deinit(wpa_s->wps->registrar);
1665 wpabuf_free(wpa_s->wps->dh_pubkey);
1666 wpabuf_free(wpa_s->wps->dh_privkey);
1667 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
1668 os_free(wpa_s->wps->network_key);
1669 os_free(wpa_s->wps);
1670 wpa_s->wps = NULL;
1671 }
1672
1673
wpas_wps_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss)1674 int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
1675 struct wpa_ssid *ssid, struct wpa_bss *bss)
1676 {
1677 struct wpabuf *wps_ie;
1678
1679 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1680 return -1;
1681
1682 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1683 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1684 if (!wps_ie) {
1685 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1686 return 0;
1687 }
1688
1689 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1690 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1691 "without active PBC Registrar");
1692 wpabuf_free(wps_ie);
1693 return 0;
1694 }
1695
1696 /* TODO: overlap detection */
1697 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1698 "(Active PBC)");
1699 wpabuf_free(wps_ie);
1700 return 1;
1701 }
1702
1703 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1704 if (!wps_ie) {
1705 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1706 return 0;
1707 }
1708
1709 /*
1710 * Start with WPS APs that advertise our address as an
1711 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1712 * allow any WPS AP after couple of scans since some APs do not
1713 * set Selected Registrar attribute properly when using
1714 * external Registrar.
1715 */
1716 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
1717 struct os_reltime age;
1718
1719 os_reltime_age(&wpa_s->wps_pin_start_time, &age);
1720
1721 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG ||
1722 age.sec < WPS_PIN_TIME_IGNORE_SEL_REG) {
1723 wpa_printf(MSG_DEBUG,
1724 " skip - WPS AP without active PIN Registrar (scan_runs=%d age=%d)",
1725 wpa_s->scan_runs, (int) age.sec);
1726 wpabuf_free(wps_ie);
1727 return 0;
1728 }
1729 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1730 } else {
1731 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1732 "(Authorized MAC or Active PIN)");
1733 }
1734 wpabuf_free(wps_ie);
1735 return 1;
1736 }
1737
1738 if (wps_ie) {
1739 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1740 wpabuf_free(wps_ie);
1741 return 1;
1742 }
1743
1744 return -1;
1745 }
1746
1747
wpas_wps_ssid_wildcard_ok(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss)1748 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1749 struct wpa_ssid *ssid,
1750 struct wpa_bss *bss)
1751 {
1752 struct wpabuf *wps_ie = NULL;
1753 int ret = 0;
1754
1755 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1756 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1757 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1758 /* allow wildcard SSID for WPS PBC */
1759 ret = 1;
1760 }
1761 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1762 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1763 if (wps_ie &&
1764 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
1765 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
1766 /* allow wildcard SSID for WPS PIN */
1767 ret = 1;
1768 }
1769 }
1770
1771 if (!ret && ssid->bssid_set &&
1772 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1773 /* allow wildcard SSID due to hardcoded BSSID match */
1774 ret = 1;
1775 }
1776
1777 #ifdef CONFIG_WPS_STRICT
1778 if (wps_ie) {
1779 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
1780 0, bss->bssid) < 0)
1781 ret = 0;
1782 if (bss->beacon_ie_len) {
1783 struct wpabuf *bcn_wps;
1784 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
1785 bss, WPS_IE_VENDOR_TYPE);
1786 if (bcn_wps == NULL) {
1787 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1788 "missing from AP Beacon");
1789 ret = 0;
1790 } else {
1791 if (wps_validate_beacon(wps_ie) < 0)
1792 ret = 0;
1793 wpabuf_free(bcn_wps);
1794 }
1795 }
1796 }
1797 #endif /* CONFIG_WPS_STRICT */
1798
1799 wpabuf_free(wps_ie);
1800
1801 return ret;
1802 }
1803
1804
wpas_wps_scan_pbc_overlap(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1805 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
1806 struct wpa_bss *selected, struct wpa_ssid *ssid)
1807 {
1808 const u8 *sel_uuid;
1809 struct wpabuf *wps_ie;
1810 int ret = 0;
1811 size_t i;
1812
1813 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1814 return 0;
1815
1816 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1817 "present in scan results; selected BSSID " MACSTR,
1818 MAC2STR(selected->bssid));
1819
1820 /* Make sure that only one AP is in active PBC mode */
1821 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
1822 if (wps_ie) {
1823 sel_uuid = wps_get_uuid_e(wps_ie);
1824 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1825 sel_uuid, UUID_LEN);
1826 } else {
1827 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1828 "WPS IE?!");
1829 sel_uuid = NULL;
1830 }
1831
1832 for (i = 0; i < wpa_s->num_wps_ap; i++) {
1833 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
1834
1835 if (!ap->pbc_active ||
1836 os_memcmp(selected->bssid, ap->bssid, ETH_ALEN) == 0)
1837 continue;
1838
1839 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1840 MACSTR, MAC2STR(ap->bssid));
1841 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1842 ap->uuid, UUID_LEN);
1843 if (sel_uuid == NULL ||
1844 os_memcmp(sel_uuid, ap->uuid, UUID_LEN) != 0) {
1845 ret = 1; /* PBC overlap */
1846 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1847 MACSTR " and " MACSTR,
1848 MAC2STR(selected->bssid),
1849 MAC2STR(ap->bssid));
1850 break;
1851 }
1852
1853 /* TODO: verify that this is reasonable dual-band situation */
1854 }
1855
1856 wpabuf_free(wps_ie);
1857
1858 return ret;
1859 }
1860
1861
wpas_wps_notify_scan_results(struct wpa_supplicant * wpa_s)1862 void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1863 {
1864 struct wpa_bss *bss;
1865 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
1866
1867 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1868 return;
1869
1870 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1871 struct wpabuf *ie;
1872 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
1873 if (!ie)
1874 continue;
1875 if (wps_is_selected_pbc_registrar(ie))
1876 pbc++;
1877 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
1878 auth++;
1879 else if (wps_is_selected_pin_registrar(ie))
1880 pin++;
1881 else
1882 wps++;
1883 wpabuf_free(ie);
1884 }
1885
1886 if (pbc)
1887 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1888 else if (auth)
1889 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1890 else if (pin)
1891 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1892 else if (wps)
1893 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
1894 }
1895
1896
wpas_wps_searching(struct wpa_supplicant * wpa_s)1897 int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1898 {
1899 struct wpa_ssid *ssid;
1900
1901 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1902 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1903 return 1;
1904 }
1905
1906 return 0;
1907 }
1908
1909
wpas_wps_scan_result_text(const u8 * ies,size_t ies_len,char * buf,char * end)1910 int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1911 char *end)
1912 {
1913 struct wpabuf *wps_ie;
1914 int ret;
1915
1916 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1917 if (wps_ie == NULL)
1918 return 0;
1919
1920 ret = wps_attr_text(wps_ie, buf, end);
1921 wpabuf_free(wps_ie);
1922 return ret;
1923 }
1924
1925
wpas_wps_er_start(struct wpa_supplicant * wpa_s,const char * filter)1926 int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
1927 {
1928 #ifdef CONFIG_WPS_ER
1929 if (wpa_s->wps_er) {
1930 wps_er_refresh(wpa_s->wps_er);
1931 return 0;
1932 }
1933 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
1934 if (wpa_s->wps_er == NULL)
1935 return -1;
1936 return 0;
1937 #else /* CONFIG_WPS_ER */
1938 return 0;
1939 #endif /* CONFIG_WPS_ER */
1940 }
1941
1942
wpas_wps_er_stop(struct wpa_supplicant * wpa_s)1943 void wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1944 {
1945 #ifdef CONFIG_WPS_ER
1946 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
1947 wpa_s->wps_er = NULL;
1948 #endif /* CONFIG_WPS_ER */
1949 }
1950
1951
1952 #ifdef CONFIG_WPS_ER
wpas_wps_er_add_pin(struct wpa_supplicant * wpa_s,const u8 * addr,const char * uuid,const char * pin)1953 int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1954 const char *uuid, const char *pin)
1955 {
1956 u8 u[UUID_LEN];
1957 const u8 *use_uuid = NULL;
1958 u8 addr_buf[ETH_ALEN];
1959
1960 if (os_strcmp(uuid, "any") == 0) {
1961 } else if (uuid_str2bin(uuid, u) == 0) {
1962 use_uuid = u;
1963 } else if (hwaddr_aton(uuid, addr_buf) == 0) {
1964 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf);
1965 if (use_uuid == NULL)
1966 return -1;
1967 } else
1968 return -1;
1969 return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
1970 use_uuid,
1971 (const u8 *) pin, os_strlen(pin), 300);
1972 }
1973
1974
wpas_wps_er_pbc(struct wpa_supplicant * wpa_s,const char * uuid)1975 int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1976 {
1977 u8 u[UUID_LEN], *use_uuid = NULL;
1978 u8 addr[ETH_ALEN], *use_addr = NULL;
1979
1980 if (uuid_str2bin(uuid, u) == 0)
1981 use_uuid = u;
1982 else if (hwaddr_aton(uuid, addr) == 0)
1983 use_addr = addr;
1984 else
1985 return -1;
1986 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr);
1987 }
1988
1989
wpas_wps_er_learn(struct wpa_supplicant * wpa_s,const char * uuid,const char * pin)1990 int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1991 const char *pin)
1992 {
1993 u8 u[UUID_LEN], *use_uuid = NULL;
1994 u8 addr[ETH_ALEN], *use_addr = NULL;
1995
1996 if (uuid_str2bin(uuid, u) == 0)
1997 use_uuid = u;
1998 else if (hwaddr_aton(uuid, addr) == 0)
1999 use_addr = addr;
2000 else
2001 return -1;
2002
2003 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin,
2004 os_strlen(pin));
2005 }
2006
2007
wpas_wps_network_to_cred(struct wpa_ssid * ssid,struct wps_credential * cred)2008 static int wpas_wps_network_to_cred(struct wpa_ssid *ssid,
2009 struct wps_credential *cred)
2010 {
2011 os_memset(cred, 0, sizeof(*cred));
2012 if (ssid->ssid_len > SSID_MAX_LEN)
2013 return -1;
2014 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len);
2015 cred->ssid_len = ssid->ssid_len;
2016 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
2017 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ?
2018 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
2019 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
2020 cred->encr_type = WPS_ENCR_AES;
2021 else
2022 cred->encr_type = WPS_ENCR_TKIP;
2023 if (ssid->passphrase) {
2024 cred->key_len = os_strlen(ssid->passphrase);
2025 if (cred->key_len >= 64)
2026 return -1;
2027 os_memcpy(cred->key, ssid->passphrase, cred->key_len);
2028 } else if (ssid->psk_set) {
2029 cred->key_len = 32;
2030 os_memcpy(cred->key, ssid->psk, 32);
2031 } else
2032 return -1;
2033 } else {
2034 cred->auth_type = WPS_AUTH_OPEN;
2035 cred->encr_type = WPS_ENCR_NONE;
2036 }
2037
2038 return 0;
2039 }
2040
2041
wpas_wps_er_set_config(struct wpa_supplicant * wpa_s,const char * uuid,int id)2042 int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
2043 int id)
2044 {
2045 u8 u[UUID_LEN], *use_uuid = NULL;
2046 u8 addr[ETH_ALEN], *use_addr = NULL;
2047 struct wpa_ssid *ssid;
2048 struct wps_credential cred;
2049 int ret;
2050
2051 if (uuid_str2bin(uuid, u) == 0)
2052 use_uuid = u;
2053 else if (hwaddr_aton(uuid, addr) == 0)
2054 use_addr = addr;
2055 else
2056 return -1;
2057 ssid = wpa_config_get_network(wpa_s->conf, id);
2058 if (ssid == NULL || ssid->ssid == NULL)
2059 return -1;
2060
2061 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
2062 return -1;
2063 ret = wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred);
2064 os_memset(&cred, 0, sizeof(cred));
2065 return ret;
2066 }
2067
2068
wpas_wps_er_config(struct wpa_supplicant * wpa_s,const char * uuid,const char * pin,struct wps_new_ap_settings * settings)2069 int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
2070 const char *pin, struct wps_new_ap_settings *settings)
2071 {
2072 u8 u[UUID_LEN], *use_uuid = NULL;
2073 u8 addr[ETH_ALEN], *use_addr = NULL;
2074 struct wps_credential cred;
2075 size_t len;
2076
2077 if (uuid_str2bin(uuid, u) == 0)
2078 use_uuid = u;
2079 else if (hwaddr_aton(uuid, addr) == 0)
2080 use_addr = addr;
2081 else
2082 return -1;
2083 if (settings->ssid_hex == NULL || settings->auth == NULL ||
2084 settings->encr == NULL || settings->key_hex == NULL)
2085 return -1;
2086
2087 os_memset(&cred, 0, sizeof(cred));
2088 len = os_strlen(settings->ssid_hex);
2089 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
2090 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
2091 return -1;
2092 cred.ssid_len = len / 2;
2093
2094 len = os_strlen(settings->key_hex);
2095 if ((len & 1) || len > 2 * sizeof(cred.key) ||
2096 hexstr2bin(settings->key_hex, cred.key, len / 2))
2097 return -1;
2098 cred.key_len = len / 2;
2099
2100 if (os_strcmp(settings->auth, "OPEN") == 0)
2101 cred.auth_type = WPS_AUTH_OPEN;
2102 else if (os_strcmp(settings->auth, "WPAPSK") == 0)
2103 cred.auth_type = WPS_AUTH_WPAPSK;
2104 else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
2105 cred.auth_type = WPS_AUTH_WPA2PSK;
2106 else
2107 return -1;
2108
2109 if (os_strcmp(settings->encr, "NONE") == 0)
2110 cred.encr_type = WPS_ENCR_NONE;
2111 #ifdef CONFIG_TESTING_OPTIONS
2112 else if (os_strcmp(settings->encr, "WEP") == 0)
2113 cred.encr_type = WPS_ENCR_WEP;
2114 #endif /* CONFIG_TESTING_OPTIONS */
2115 else if (os_strcmp(settings->encr, "TKIP") == 0)
2116 cred.encr_type = WPS_ENCR_TKIP;
2117 else if (os_strcmp(settings->encr, "CCMP") == 0)
2118 cred.encr_type = WPS_ENCR_AES;
2119 else
2120 return -1;
2121
2122 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr,
2123 (const u8 *) pin, os_strlen(pin), &cred);
2124 }
2125
2126
2127 #ifdef CONFIG_WPS_NFC
wpas_wps_er_nfc_config_token(struct wpa_supplicant * wpa_s,int ndef,const char * uuid)2128 struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
2129 int ndef, const char *uuid)
2130 {
2131 struct wpabuf *ret;
2132 u8 u[UUID_LEN], *use_uuid = NULL;
2133 u8 addr[ETH_ALEN], *use_addr = NULL;
2134
2135 if (!wpa_s->wps_er)
2136 return NULL;
2137
2138 if (uuid_str2bin(uuid, u) == 0)
2139 use_uuid = u;
2140 else if (hwaddr_aton(uuid, addr) == 0)
2141 use_addr = addr;
2142 else
2143 return NULL;
2144
2145 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
2146 if (ndef && ret) {
2147 struct wpabuf *tmp;
2148 tmp = ndef_build_wifi(ret);
2149 wpabuf_free(ret);
2150 if (tmp == NULL)
2151 return NULL;
2152 ret = tmp;
2153 }
2154
2155 return ret;
2156 }
2157 #endif /* CONFIG_WPS_NFC */
2158
2159
2160 static int callbacks_pending = 0;
2161
wpas_wps_terminate_cb(void * ctx)2162 static void wpas_wps_terminate_cb(void *ctx)
2163 {
2164 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
2165 if (--callbacks_pending <= 0)
2166 eloop_terminate();
2167 }
2168 #endif /* CONFIG_WPS_ER */
2169
2170
wpas_wps_terminate_pending(struct wpa_supplicant * wpa_s)2171 int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
2172 {
2173 #ifdef CONFIG_WPS_ER
2174 if (wpa_s->wps_er) {
2175 callbacks_pending++;
2176 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
2177 wpa_s->wps_er = NULL;
2178 return 1;
2179 }
2180 #endif /* CONFIG_WPS_ER */
2181 return 0;
2182 }
2183
2184
wpas_wps_update_config(struct wpa_supplicant * wpa_s)2185 void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
2186 {
2187 struct wps_context *wps = wpa_s->wps;
2188
2189 if (wps == NULL)
2190 return;
2191
2192 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
2193 wps->config_methods = wps_config_methods_str2bin(
2194 wpa_s->conf->config_methods);
2195 if ((wps->config_methods &
2196 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
2197 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
2198 wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
2199 "config methods are not allowed at the "
2200 "same time");
2201 wps->config_methods &= ~WPS_CONFIG_LABEL;
2202 }
2203 }
2204 wps->config_methods = wps_fix_config_methods(wps->config_methods);
2205 wps->dev.config_methods = wps->config_methods;
2206
2207 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
2208 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
2209 WPS_DEV_TYPE_LEN);
2210
2211 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
2212 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2213 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
2214 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2215 }
2216
2217 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
2218 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
2219
2220 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
2221 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
2222
2223 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
2224 wpas_wps_set_uuid(wpa_s, wps);
2225
2226 if (wpa_s->conf->changed_parameters &
2227 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
2228 /* Update pointers to make sure they refer current values */
2229 wps->dev.device_name = wpa_s->conf->device_name;
2230 wps->dev.manufacturer = wpa_s->conf->manufacturer;
2231 wps->dev.model_name = wpa_s->conf->model_name;
2232 wps->dev.model_number = wpa_s->conf->model_number;
2233 wps->dev.serial_number = wpa_s->conf->serial_number;
2234 }
2235 }
2236
2237
2238 #ifdef CONFIG_WPS_NFC
2239
2240 #ifdef CONFIG_WPS_ER
2241 static struct wpabuf *
wpas_wps_network_config_token(struct wpa_supplicant * wpa_s,int ndef,struct wpa_ssid * ssid)2242 wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef,
2243 struct wpa_ssid *ssid)
2244 {
2245 struct wpabuf *ret;
2246 struct wps_credential cred;
2247
2248 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
2249 return NULL;
2250
2251 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred);
2252
2253 if (ndef && ret) {
2254 struct wpabuf *tmp;
2255 tmp = ndef_build_wifi(ret);
2256 wpabuf_free(ret);
2257 if (tmp == NULL)
2258 return NULL;
2259 ret = tmp;
2260 }
2261
2262 return ret;
2263 }
2264 #endif /* CONFIG_WPS_ER */
2265
2266
wpas_wps_nfc_config_token(struct wpa_supplicant * wpa_s,int ndef,const char * id_str)2267 struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
2268 int ndef, const char *id_str)
2269 {
2270 #ifdef CONFIG_WPS_ER
2271 if (id_str) {
2272 int id;
2273 char *end = NULL;
2274 struct wpa_ssid *ssid;
2275
2276 id = strtol(id_str, &end, 10);
2277 if (end && *end)
2278 return NULL;
2279
2280 ssid = wpa_config_get_network(wpa_s->conf, id);
2281 if (ssid == NULL)
2282 return NULL;
2283 return wpas_wps_network_config_token(wpa_s, ndef, ssid);
2284 }
2285 #endif /* CONFIG_WPS_ER */
2286 #ifdef CONFIG_AP
2287 if (wpa_s->ap_iface)
2288 return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
2289 #endif /* CONFIG_AP */
2290 return NULL;
2291 }
2292
2293
wpas_wps_nfc_token(struct wpa_supplicant * wpa_s,int ndef)2294 struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
2295 {
2296 if (wpa_s->conf->wps_nfc_pw_from_config) {
2297 return wps_nfc_token_build(ndef,
2298 wpa_s->conf->wps_nfc_dev_pw_id,
2299 wpa_s->conf->wps_nfc_dh_pubkey,
2300 wpa_s->conf->wps_nfc_dev_pw);
2301 }
2302
2303 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
2304 &wpa_s->conf->wps_nfc_dh_pubkey,
2305 &wpa_s->conf->wps_nfc_dh_privkey,
2306 &wpa_s->conf->wps_nfc_dev_pw);
2307 }
2308
2309
wpas_wps_start_nfc(struct wpa_supplicant * wpa_s,const u8 * go_dev_addr,const u8 * bssid,const struct wpabuf * dev_pw,u16 dev_pw_id,int p2p_group,const u8 * peer_pubkey_hash,const u8 * ssid,size_t ssid_len,int freq)2310 int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *go_dev_addr,
2311 const u8 *bssid,
2312 const struct wpabuf *dev_pw, u16 dev_pw_id,
2313 int p2p_group, const u8 *peer_pubkey_hash,
2314 const u8 *ssid, size_t ssid_len, int freq)
2315 {
2316 struct wps_context *wps = wpa_s->wps;
2317 char pw[32 * 2 + 1];
2318
2319 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) {
2320 dev_pw = wpa_s->conf->wps_nfc_dev_pw;
2321 dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
2322 }
2323
2324 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
2325 wpa_s->conf->wps_nfc_dh_privkey == NULL) {
2326 wpa_printf(MSG_DEBUG, "WPS: Missing DH params - "
2327 "cannot start NFC-triggered connection");
2328 return -1;
2329 }
2330
2331 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER && dev_pw == NULL) {
2332 wpa_printf(MSG_DEBUG, "WPS: Missing Device Password (id=%u) - "
2333 "cannot start NFC-triggered connection", dev_pw_id);
2334 return -1;
2335 }
2336
2337 dh5_free(wps->dh_ctx);
2338 wpabuf_free(wps->dh_pubkey);
2339 wpabuf_free(wps->dh_privkey);
2340 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2341 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2342 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
2343 wps->dh_ctx = NULL;
2344 wpabuf_free(wps->dh_pubkey);
2345 wps->dh_pubkey = NULL;
2346 wpabuf_free(wps->dh_privkey);
2347 wps->dh_privkey = NULL;
2348 wpa_printf(MSG_DEBUG, "WPS: Failed to get DH priv/pub key");
2349 return -1;
2350 }
2351 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
2352 if (wps->dh_ctx == NULL) {
2353 wpabuf_free(wps->dh_pubkey);
2354 wps->dh_pubkey = NULL;
2355 wpabuf_free(wps->dh_privkey);
2356 wps->dh_privkey = NULL;
2357 wpa_printf(MSG_DEBUG, "WPS: Failed to initialize DH context");
2358 return -1;
2359 }
2360
2361 if (dev_pw) {
2362 wpa_snprintf_hex_uppercase(pw, sizeof(pw),
2363 wpabuf_head(dev_pw),
2364 wpabuf_len(dev_pw));
2365 }
2366 return wpas_wps_start_dev_pw(wpa_s, go_dev_addr, bssid,
2367 dev_pw ? pw : NULL,
2368 p2p_group, dev_pw_id, peer_pubkey_hash,
2369 ssid, ssid_len, freq);
2370 }
2371
2372
wpas_wps_use_cred(struct wpa_supplicant * wpa_s,struct wps_parse_attr * attr)2373 static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
2374 struct wps_parse_attr *attr)
2375 {
2376 /*
2377 * Disable existing networks temporarily to allow the newly learned
2378 * credential to be preferred. Enable the temporarily disabled networks
2379 * after 10 seconds.
2380 */
2381 wpas_wps_temp_disable(wpa_s, NULL);
2382 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
2383 NULL);
2384
2385 if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
2386 return -1;
2387
2388 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2389 return 0;
2390
2391 if (attr->ap_channel) {
2392 u16 chan = WPA_GET_BE16(attr->ap_channel);
2393 int freq = 0;
2394
2395 if (chan >= 1 && chan <= 13)
2396 freq = 2407 + 5 * chan;
2397 else if (chan == 14)
2398 freq = 2484;
2399 else if (chan >= 30)
2400 freq = 5000 + 5 * chan;
2401
2402 if (freq) {
2403 wpa_printf(MSG_DEBUG, "WPS: Credential container indicated AP channel %u -> %u MHz",
2404 chan, freq);
2405 wpa_s->after_wps = 5;
2406 wpa_s->wps_freq = freq;
2407 }
2408 }
2409
2410 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
2411 "based on the received credential added");
2412 wpa_s->normal_scans = 0;
2413 wpa_supplicant_reinit_autoscan(wpa_s);
2414 wpa_s->disconnected = 0;
2415 wpa_s->reassociate = 1;
2416
2417 wpa_supplicant_cancel_sched_scan(wpa_s);
2418 wpa_supplicant_req_scan(wpa_s, 0, 0);
2419
2420 return 0;
2421 }
2422
2423
2424 #ifdef CONFIG_WPS_ER
wpas_wps_add_nfc_password_token(struct wpa_supplicant * wpa_s,struct wps_parse_attr * attr)2425 static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
2426 struct wps_parse_attr *attr)
2427 {
2428 return wps_registrar_add_nfc_password_token(
2429 wpa_s->wps->registrar, attr->oob_dev_password,
2430 attr->oob_dev_password_len);
2431 }
2432 #endif /* CONFIG_WPS_ER */
2433
2434
wpas_wps_nfc_tag_process(struct wpa_supplicant * wpa_s,const struct wpabuf * wps)2435 static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
2436 const struct wpabuf *wps)
2437 {
2438 struct wps_parse_attr attr;
2439
2440 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
2441
2442 if (wps_parse_msg(wps, &attr)) {
2443 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
2444 return -1;
2445 }
2446
2447 if (attr.num_cred)
2448 return wpas_wps_use_cred(wpa_s, &attr);
2449
2450 #ifdef CONFIG_WPS_ER
2451 if (attr.oob_dev_password)
2452 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
2453 #endif /* CONFIG_WPS_ER */
2454
2455 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
2456 return -1;
2457 }
2458
2459
wpas_wps_nfc_tag_read(struct wpa_supplicant * wpa_s,const struct wpabuf * data,int forced_freq)2460 int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
2461 const struct wpabuf *data, int forced_freq)
2462 {
2463 const struct wpabuf *wps = data;
2464 struct wpabuf *tmp = NULL;
2465 int ret;
2466
2467 if (wpabuf_len(data) < 4)
2468 return -1;
2469
2470 if (*wpabuf_head_u8(data) != 0x10) {
2471 /* Assume this contains full NDEF record */
2472 tmp = ndef_parse_wifi(data);
2473 if (tmp == NULL) {
2474 #ifdef CONFIG_P2P
2475 tmp = ndef_parse_p2p(data);
2476 if (tmp) {
2477 ret = wpas_p2p_nfc_tag_process(wpa_s, tmp,
2478 forced_freq);
2479 wpabuf_free(tmp);
2480 return ret;
2481 }
2482 #endif /* CONFIG_P2P */
2483 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
2484 return -1;
2485 }
2486 wps = tmp;
2487 }
2488
2489 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2490 wpabuf_free(tmp);
2491 return ret;
2492 }
2493
2494
wpas_wps_nfc_handover_req(struct wpa_supplicant * wpa_s,int ndef)2495 struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s,
2496 int ndef)
2497 {
2498 struct wpabuf *ret;
2499
2500 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
2501 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
2502 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
2503 return NULL;
2504
2505 ret = wps_build_nfc_handover_req(wpa_s->wps,
2506 wpa_s->conf->wps_nfc_dh_pubkey);
2507
2508 if (ndef && ret) {
2509 struct wpabuf *tmp;
2510 tmp = ndef_build_wifi(ret);
2511 wpabuf_free(ret);
2512 if (tmp == NULL)
2513 return NULL;
2514 ret = tmp;
2515 }
2516
2517 return ret;
2518 }
2519
2520
2521 #ifdef CONFIG_WPS_NFC
2522
2523 static struct wpabuf *
wpas_wps_er_nfc_handover_sel(struct wpa_supplicant * wpa_s,int ndef,const char * uuid)2524 wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s, int ndef,
2525 const char *uuid)
2526 {
2527 #ifdef CONFIG_WPS_ER
2528 struct wpabuf *ret;
2529 u8 u[UUID_LEN], *use_uuid = NULL;
2530 u8 addr[ETH_ALEN], *use_addr = NULL;
2531 struct wps_context *wps = wpa_s->wps;
2532
2533 if (wps == NULL)
2534 return NULL;
2535
2536 if (uuid == NULL)
2537 return NULL;
2538 if (uuid_str2bin(uuid, u) == 0)
2539 use_uuid = u;
2540 else if (hwaddr_aton(uuid, addr) == 0)
2541 use_addr = addr;
2542 else
2543 return NULL;
2544
2545 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL) {
2546 if (wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
2547 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
2548 return NULL;
2549 }
2550
2551 wpas_wps_nfc_clear(wps);
2552 wps->ap_nfc_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
2553 wps->ap_nfc_dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2554 wps->ap_nfc_dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2555 if (!wps->ap_nfc_dh_pubkey || !wps->ap_nfc_dh_privkey) {
2556 wpas_wps_nfc_clear(wps);
2557 return NULL;
2558 }
2559
2560 ret = wps_er_nfc_handover_sel(wpa_s->wps_er, wpa_s->wps, use_uuid,
2561 use_addr, wpa_s->conf->wps_nfc_dh_pubkey);
2562 if (ndef && ret) {
2563 struct wpabuf *tmp;
2564 tmp = ndef_build_wifi(ret);
2565 wpabuf_free(ret);
2566 if (tmp == NULL)
2567 return NULL;
2568 ret = tmp;
2569 }
2570
2571 return ret;
2572 #else /* CONFIG_WPS_ER */
2573 return NULL;
2574 #endif /* CONFIG_WPS_ER */
2575 }
2576 #endif /* CONFIG_WPS_NFC */
2577
2578
wpas_wps_nfc_handover_sel(struct wpa_supplicant * wpa_s,int ndef,int cr,const char * uuid)2579 struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2580 int ndef, int cr, const char *uuid)
2581 {
2582 struct wpabuf *ret;
2583 if (!cr)
2584 return NULL;
2585 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
2586 if (ret)
2587 return ret;
2588 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
2589 }
2590
2591
wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant * wpa_s,const struct wpabuf * data)2592 static int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
2593 const struct wpabuf *data)
2594 {
2595 struct wpabuf *wps;
2596 int ret = -1;
2597 u16 wsc_len;
2598 const u8 *pos;
2599 struct wpabuf msg;
2600 struct wps_parse_attr attr;
2601 u16 dev_pw_id;
2602 const u8 *bssid = NULL;
2603 int freq = 0;
2604
2605 wps = ndef_parse_wifi(data);
2606 if (wps == NULL)
2607 return -1;
2608 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2609 "payload from NFC connection handover");
2610 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
2611 if (wpabuf_len(wps) < 2) {
2612 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Select "
2613 "Message");
2614 goto out;
2615 }
2616 pos = wpabuf_head(wps);
2617 wsc_len = WPA_GET_BE16(pos);
2618 if (wsc_len > wpabuf_len(wps) - 2) {
2619 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
2620 "in Wi-Fi Handover Select Message", wsc_len);
2621 goto out;
2622 }
2623 pos += 2;
2624
2625 wpa_hexdump(MSG_DEBUG,
2626 "WPS: WSC attributes in Wi-Fi Handover Select Message",
2627 pos, wsc_len);
2628 if (wsc_len < wpabuf_len(wps) - 2) {
2629 wpa_hexdump(MSG_DEBUG,
2630 "WPS: Ignore extra data after WSC attributes",
2631 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
2632 }
2633
2634 wpabuf_set(&msg, pos, wsc_len);
2635 ret = wps_parse_msg(&msg, &attr);
2636 if (ret < 0) {
2637 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
2638 "Wi-Fi Handover Select Message");
2639 goto out;
2640 }
2641
2642 if (attr.oob_dev_password == NULL ||
2643 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
2644 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
2645 "included in Wi-Fi Handover Select Message");
2646 ret = -1;
2647 goto out;
2648 }
2649
2650 if (attr.ssid == NULL) {
2651 wpa_printf(MSG_DEBUG, "WPS: No SSID included in Wi-Fi Handover "
2652 "Select Message");
2653 ret = -1;
2654 goto out;
2655 }
2656
2657 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", attr.ssid, attr.ssid_len);
2658
2659 if (attr.mac_addr) {
2660 bssid = attr.mac_addr;
2661 wpa_printf(MSG_DEBUG, "WPS: MAC Address (BSSID): " MACSTR,
2662 MAC2STR(bssid));
2663 }
2664
2665 if (attr.rf_bands)
2666 wpa_printf(MSG_DEBUG, "WPS: RF Bands: %d", *attr.rf_bands);
2667
2668 if (attr.ap_channel) {
2669 u16 chan = WPA_GET_BE16(attr.ap_channel);
2670
2671 wpa_printf(MSG_DEBUG, "WPS: AP Channel: %d", chan);
2672
2673 if (chan >= 1 && chan <= 13 &&
2674 (attr.rf_bands == NULL || *attr.rf_bands & WPS_RF_24GHZ))
2675 freq = 2407 + 5 * chan;
2676 else if (chan == 14 &&
2677 (attr.rf_bands == NULL ||
2678 *attr.rf_bands & WPS_RF_24GHZ))
2679 freq = 2484;
2680 else if (chan >= 30 &&
2681 (attr.rf_bands == NULL ||
2682 *attr.rf_bands & WPS_RF_50GHZ))
2683 freq = 5000 + 5 * chan;
2684 else if (chan >= 1 && chan <= 4 &&
2685 (attr.rf_bands == NULL ||
2686 *attr.rf_bands & WPS_RF_60GHZ))
2687 freq = 56160 + 2160 * chan;
2688
2689 if (freq) {
2690 wpa_printf(MSG_DEBUG,
2691 "WPS: AP indicated channel %u -> %u MHz",
2692 chan, freq);
2693 }
2694 }
2695
2696 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
2697 attr.oob_dev_password, attr.oob_dev_password_len);
2698 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
2699 WPS_OOB_PUBKEY_HASH_LEN);
2700 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
2701 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
2702 "%u in Wi-Fi Handover Select Message", dev_pw_id);
2703 ret = -1;
2704 goto out;
2705 }
2706 wpa_hexdump(MSG_DEBUG, "WPS: AP Public Key hash",
2707 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
2708
2709 ret = wpas_wps_start_nfc(wpa_s, NULL, bssid, NULL, dev_pw_id, 0,
2710 attr.oob_dev_password,
2711 attr.ssid, attr.ssid_len, freq);
2712
2713 out:
2714 wpabuf_free(wps);
2715 return ret;
2716 }
2717
2718
wpas_wps_nfc_report_handover(struct wpa_supplicant * wpa_s,const struct wpabuf * req,const struct wpabuf * sel)2719 int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2720 const struct wpabuf *req,
2721 const struct wpabuf *sel)
2722 {
2723 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
2724 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
2725 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
2726 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
2727 }
2728
2729
wpas_er_wps_nfc_report_handover(struct wpa_supplicant * wpa_s,const struct wpabuf * req,const struct wpabuf * sel)2730 int wpas_er_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2731 const struct wpabuf *req,
2732 const struct wpabuf *sel)
2733 {
2734 struct wpabuf *wps;
2735 int ret = -1;
2736 u16 wsc_len;
2737 const u8 *pos;
2738 struct wpabuf msg;
2739 struct wps_parse_attr attr;
2740 u16 dev_pw_id;
2741
2742 /*
2743 * Enrollee/station is always initiator of the NFC connection handover,
2744 * so use the request message here to find Enrollee public key hash.
2745 */
2746 wps = ndef_parse_wifi(req);
2747 if (wps == NULL)
2748 return -1;
2749 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2750 "payload from NFC connection handover");
2751 wpa_hexdump_buf(MSG_DEBUG, "WPS: NFC payload", wps);
2752 if (wpabuf_len(wps) < 2) {
2753 wpa_printf(MSG_DEBUG, "WPS: Too short Wi-Fi Handover Request "
2754 "Message");
2755 goto out;
2756 }
2757 pos = wpabuf_head(wps);
2758 wsc_len = WPA_GET_BE16(pos);
2759 if (wsc_len > wpabuf_len(wps) - 2) {
2760 wpa_printf(MSG_DEBUG, "WPS: Invalid WSC attribute length (%u) "
2761 "in rt Wi-Fi Handover Request Message", wsc_len);
2762 goto out;
2763 }
2764 pos += 2;
2765
2766 wpa_hexdump(MSG_DEBUG,
2767 "WPS: WSC attributes in Wi-Fi Handover Request Message",
2768 pos, wsc_len);
2769 if (wsc_len < wpabuf_len(wps) - 2) {
2770 wpa_hexdump(MSG_DEBUG,
2771 "WPS: Ignore extra data after WSC attributes",
2772 pos + wsc_len, wpabuf_len(wps) - 2 - wsc_len);
2773 }
2774
2775 wpabuf_set(&msg, pos, wsc_len);
2776 ret = wps_parse_msg(&msg, &attr);
2777 if (ret < 0) {
2778 wpa_printf(MSG_DEBUG, "WPS: Could not parse WSC attributes in "
2779 "Wi-Fi Handover Request Message");
2780 goto out;
2781 }
2782
2783 if (attr.oob_dev_password == NULL ||
2784 attr.oob_dev_password_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
2785 wpa_printf(MSG_DEBUG, "WPS: No Out-of-Band Device Password "
2786 "included in Wi-Fi Handover Request Message");
2787 ret = -1;
2788 goto out;
2789 }
2790
2791 if (attr.uuid_e == NULL) {
2792 wpa_printf(MSG_DEBUG, "WPS: No UUID-E included in Wi-Fi "
2793 "Handover Request Message");
2794 ret = -1;
2795 goto out;
2796 }
2797
2798 wpa_hexdump(MSG_DEBUG, "WPS: UUID-E", attr.uuid_e, WPS_UUID_LEN);
2799
2800 wpa_hexdump(MSG_DEBUG, "WPS: Out-of-Band Device Password",
2801 attr.oob_dev_password, attr.oob_dev_password_len);
2802 dev_pw_id = WPA_GET_BE16(attr.oob_dev_password +
2803 WPS_OOB_PUBKEY_HASH_LEN);
2804 if (dev_pw_id != DEV_PW_NFC_CONNECTION_HANDOVER) {
2805 wpa_printf(MSG_DEBUG, "WPS: Unexpected OOB Device Password ID "
2806 "%u in Wi-Fi Handover Request Message", dev_pw_id);
2807 ret = -1;
2808 goto out;
2809 }
2810 wpa_hexdump(MSG_DEBUG, "WPS: Enrollee Public Key hash",
2811 attr.oob_dev_password, WPS_OOB_PUBKEY_HASH_LEN);
2812
2813 ret = wps_registrar_add_nfc_pw_token(wpa_s->wps->registrar,
2814 attr.oob_dev_password,
2815 DEV_PW_NFC_CONNECTION_HANDOVER,
2816 NULL, 0, 1);
2817
2818 out:
2819 wpabuf_free(wps);
2820 return ret;
2821 }
2822
2823 #endif /* CONFIG_WPS_NFC */
2824
2825
wpas_wps_dump_ap_info(struct wpa_supplicant * wpa_s)2826 static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
2827 {
2828 size_t i;
2829 struct os_reltime now;
2830
2831 if (wpa_debug_level > MSG_DEBUG)
2832 return;
2833
2834 if (wpa_s->wps_ap == NULL)
2835 return;
2836
2837 os_get_reltime(&now);
2838
2839 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2840 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2841 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
2842
2843 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
2844 "tries=%d last_attempt=%d sec ago blacklist=%d",
2845 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
2846 ap->last_attempt.sec > 0 ?
2847 (int) now.sec - (int) ap->last_attempt.sec : -1,
2848 e ? e->count : 0);
2849 }
2850 }
2851
2852
wpas_wps_get_ap_info(struct wpa_supplicant * wpa_s,const u8 * bssid)2853 static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
2854 const u8 *bssid)
2855 {
2856 size_t i;
2857
2858 if (wpa_s->wps_ap == NULL)
2859 return NULL;
2860
2861 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2862 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2863 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
2864 return ap;
2865 }
2866
2867 return NULL;
2868 }
2869
2870
wpas_wps_update_ap_info_bss(struct wpa_supplicant * wpa_s,struct wpa_scan_res * res)2871 static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
2872 struct wpa_scan_res *res)
2873 {
2874 struct wpabuf *wps;
2875 enum wps_ap_info_type type;
2876 struct wps_ap_info *ap;
2877 int r, pbc_active;
2878 const u8 *uuid;
2879
2880 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
2881 return;
2882
2883 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
2884 if (wps == NULL)
2885 return;
2886
2887 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
2888 if (r == 2)
2889 type = WPS_AP_SEL_REG_OUR;
2890 else if (r == 1)
2891 type = WPS_AP_SEL_REG;
2892 else
2893 type = WPS_AP_NOT_SEL_REG;
2894
2895 uuid = wps_get_uuid_e(wps);
2896 pbc_active = wps_is_selected_pbc_registrar(wps);
2897
2898 ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
2899 if (ap) {
2900 if (ap->type != type) {
2901 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
2902 " changed type %d -> %d",
2903 MAC2STR(res->bssid), ap->type, type);
2904 ap->type = type;
2905 if (type != WPS_AP_NOT_SEL_REG)
2906 wpa_blacklist_del(wpa_s, ap->bssid);
2907 }
2908 ap->pbc_active = pbc_active;
2909 if (uuid)
2910 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN);
2911 goto out;
2912 }
2913
2914 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
2915 sizeof(struct wps_ap_info));
2916 if (ap == NULL)
2917 goto out;
2918
2919 wpa_s->wps_ap = ap;
2920 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
2921 wpa_s->num_wps_ap++;
2922
2923 os_memset(ap, 0, sizeof(*ap));
2924 os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
2925 ap->type = type;
2926 ap->pbc_active = pbc_active;
2927 if (uuid)
2928 os_memcpy(ap->uuid, uuid, WPS_UUID_LEN);
2929 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
2930 MAC2STR(ap->bssid), ap->type);
2931
2932 out:
2933 wpabuf_free(wps);
2934 }
2935
2936
wpas_wps_update_ap_info(struct wpa_supplicant * wpa_s,struct wpa_scan_results * scan_res)2937 void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
2938 struct wpa_scan_results *scan_res)
2939 {
2940 size_t i;
2941
2942 for (i = 0; i < scan_res->num; i++)
2943 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
2944
2945 wpas_wps_dump_ap_info(wpa_s);
2946 }
2947
2948
wpas_wps_notify_assoc(struct wpa_supplicant * wpa_s,const u8 * bssid)2949 void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2950 {
2951 struct wps_ap_info *ap;
2952
2953 wpa_s->after_wps = 0;
2954
2955 if (!wpa_s->wps_ap_iter)
2956 return;
2957 ap = wpas_wps_get_ap_info(wpa_s, bssid);
2958 if (ap == NULL)
2959 return;
2960 ap->tries++;
2961 os_get_reltime(&ap->last_attempt);
2962 }
2963