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WPS: Clear connection failure counts on WPS success
[thirdparty/hostap.git] / wpa_supplicant / wps_supplicant.c
CommitLineData
fa201b69
JM		 1/*
2 * wpa_supplicant / WPS integration
59307b30 3 * Copyright (c) 2008-2013, Jouni Malinen <j@w1.fi>
fa201b69 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
fa201b69
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
03da66bd
JM		 12#include "eloop.h"
13#include "uuid.h"
3f2c8ba6 14#include "crypto/random.h"
03da66bd 15#include "crypto/dh_group5.h"
90973fb2
JM		 16#include "common/ieee802_11_defs.h"
17#include "common/ieee802_11_common.h"
18#include "common/wpa_common.h"
03da66bd
JM		 19#include "common/wpa_ctrl.h"
20#include "eap_common/eap_wsc_common.h"
b01c18a8 21#include "eap_peer/eap.h"
20a0b03d 22#include "eapol_supp/eapol_supp_sm.h"
03da66bd 23#include "rsn_supp/wpa.h"
d7645d23 24#include "wps/wps_attr_parse.h"
03da66bd 25#include "config.h"
fa201b69 26#include "wpa_supplicant_i.h"
2d5b792d 27#include "driver_i.h"
8bac466b 28#include "notify.h"
a6099152 29#include "blacklist.h"
59f2caa9 30#include "bss.h"
9ba9fa07 31#include "scan.h"
2f9929ff 32#include "ap.h"
e9a7ae41 33#include "p2p/p2p.h"
b22128ef 34#include "p2p_supplicant.h"
fa201b69
JM		 35#include "wps_supplicant.h"
36
f7e54365 37
31fcea93 38#ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
a6099152 39#define WPS_PIN_SCAN_IGNORE_SEL_REG 3
31fcea93 40#endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
fa201b69 41
fcc60db4 42static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx);
469fc3a4 43static void wpas_clear_wps(struct wpa_supplicant *wpa_s);
fcc60db4
JM		 44
45
f9f0526b
JM		 46static void wpas_wps_clear_ap_info(struct wpa_supplicant *wpa_s)
47{
48 os_free(wpa_s->wps_ap);
49 wpa_s->wps_ap = NULL;
50 wpa_s->num_wps_ap = 0;
51 wpa_s->wps_ap_iter = 0;
52}
53
54
fa201b69
JM		 55int wpas_wps_eapol_cb(struct wpa_supplicant *wpa_s)
56{
a6099152
JM		 57 if (!wpa_s->wps_success &&
58 wpa_s->current_ssid &&
59 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
60 const u8 *bssid = wpa_s->bssid;
61 if (is_zero_ether_addr(bssid))
62 bssid = wpa_s->pending_bssid;
63
64 wpa_printf(MSG_DEBUG, "WPS: PIN registration with " MACSTR
65 " did not succeed - continue trying to find "
66 "suitable AP", MAC2STR(bssid));
67 wpa_blacklist_add(wpa_s, bssid);
68
69 wpa_supplicant_deauthenticate(wpa_s,
70 WLAN_REASON_DEAUTH_LEAVING);
71 wpa_s->reassociate = 1;
72 wpa_supplicant_req_scan(wpa_s,
73 wpa_s->blacklist_cleared ? 5 : 0, 0);
74 wpa_s->blacklist_cleared = 0;
75 return 1;
76 }
77
f9f0526b 78 wpas_wps_clear_ap_info(wpa_s);
fcc60db4 79 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
449adbac
CWY		 80 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && !wpa_s->wps_success)
81 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_FAIL);
fcc60db4 82
fa201b69
JM		 83 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid &&
84 !(wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
f981eabc 85 int disabled = wpa_s->current_ssid->disabled;
a565c23b 86 unsigned int freq = wpa_s->assoc_freq;
97236cee
MH		 87 struct wpa_bss *bss;
88 struct wpa_ssid *ssid = NULL;
89 int use_fast_assoc = 0;
90
fa201b69 91 wpa_printf(MSG_DEBUG, "WPS: Network configuration replaced - "
a565c23b
JM		 92 "try to associate with the received credential "
93 "(freq=%u)", freq);
fa201b69
JM		 94 wpa_supplicant_deauthenticate(wpa_s,
95 WLAN_REASON_DEAUTH_LEAVING);
f981eabc
JM		 96 if (disabled) {
97 wpa_printf(MSG_DEBUG, "WPS: Current network is "
98 "disabled - wait for user to enable");
99 return 1;
100 }
17a4734d 101 wpa_s->after_wps = 5;
a565c23b 102 wpa_s->wps_freq = freq;
0b7a25c0 103 wpa_s->normal_scans = 0;
fa201b69 104 wpa_s->reassociate = 1;
97236cee
MH		 105
106 wpa_printf(MSG_DEBUG, "WPS: Checking whether fast association "
107 "without a new scan can be used");
108 bss = wpa_supplicant_pick_network(wpa_s, &ssid);
109 if (bss) {
110 struct wpabuf *wps;
111 struct wps_parse_attr attr;
112
113 wps = wpa_bss_get_vendor_ie_multi(bss,
114 WPS_IE_VENDOR_TYPE);
115 if (wps && wps_parse_msg(wps, &attr) == 0 &&
116 attr.wps_state &&
117 *attr.wps_state == WPS_STATE_CONFIGURED)
118 use_fast_assoc = 1;
119 wpabuf_free(wps);
120 }
121
122 if (!use_fast_assoc ||
123 wpa_supplicant_fast_associate(wpa_s) != 1)
124 wpa_supplicant_req_scan(wpa_s, 0, 0);
fa201b69
JM		 125 return 1;
126 }
127
47662164
JM		 128 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS && wpa_s->current_ssid) {
129 wpa_printf(MSG_DEBUG, "WPS: Registration completed - waiting "
130 "for external credential processing");
131 wpas_clear_wps(wpa_s);
132 wpa_supplicant_deauthenticate(wpa_s,
133 WLAN_REASON_DEAUTH_LEAVING);
134 return 1;
135 }
136
fa201b69
JM		 137 return 0;
138}
139
140
7cc1b6c9
JM		 141static void wpas_wps_security_workaround(struct wpa_supplicant *wpa_s,
142 struct wpa_ssid *ssid,
143 const struct wps_credential *cred)
144{
145 struct wpa_driver_capa capa;
59f2caa9 146 struct wpa_bss *bss;
7cc1b6c9
JM		 147 const u8 *ie;
148 struct wpa_ie_data adv;
149 int wpa2 = 0, ccmp = 0;
150
151 /*
152 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
153 * case they are configured for mixed mode operation (WPA+WPA2 and
154 * TKIP+CCMP). Try to use scan results to figure out whether the AP
155 * actually supports stronger security and select that if the client
156 * has support for it, too.
157 */
158
159 if (wpa_drv_get_capa(wpa_s, &capa))
160 return; /* Unknown what driver supports */
161
d87e90b6
JM		 162 if (ssid->ssid == NULL)
163 return;
59f2caa9
JM		 164 bss = wpa_bss_get(wpa_s, cred->mac_addr, ssid->ssid, ssid->ssid_len);
165 if (bss == NULL) {
166 wpa_printf(MSG_DEBUG, "WPS: The AP was not found from BSS "
167 "table - use credential as-is");
7cc1b6c9
JM		 168 return;
169 }
170
59f2caa9
JM		 171 wpa_printf(MSG_DEBUG, "WPS: AP found from BSS table");
172
173 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
7cc1b6c9
JM		 174 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0) {
175 wpa2 = 1;
176 if (adv.pairwise_cipher & WPA_CIPHER_CCMP)
177 ccmp = 1;
178 } else {
59f2caa9 179 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
7cc1b6c9
JM		 180 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &adv) == 0 &&
181 adv.pairwise_cipher & WPA_CIPHER_CCMP)
182 ccmp = 1;
183 }
184
185 if (ie == NULL && (ssid->proto & WPA_PROTO_WPA) &&
186 (ssid->pairwise_cipher & WPA_CIPHER_TKIP)) {
187 /*
188 * TODO: This could be the initial AP configuration and the
189 * Beacon contents could change shortly. Should request a new
190 * scan and delay addition of the network until the updated
191 * scan results are available.
192 */
193 wpa_printf(MSG_DEBUG, "WPS: The AP did not yet advertise WPA "
194 "support - use credential as-is");
195 return;
196 }
197
198 if (ccmp && !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
199 (ssid->pairwise_cipher & WPA_CIPHER_TKIP) &&
200 (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
201 wpa_printf(MSG_DEBUG, "WPS: Add CCMP into the credential "
202 "based on scan results");
203 if (wpa_s->conf->ap_scan == 1)
204 ssid->pairwise_cipher |= WPA_CIPHER_CCMP;
205 else
206 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
207 }
208
209 if (wpa2 && !(ssid->proto & WPA_PROTO_RSN) &&
210 (ssid->proto & WPA_PROTO_WPA) &&
211 (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP)) {
212 wpa_printf(MSG_DEBUG, "WPS: Add WPA2 into the credential "
213 "based on scan results");
214 if (wpa_s->conf->ap_scan == 1)
215 ssid->proto |= WPA_PROTO_RSN;
216 else
217 ssid->proto = WPA_PROTO_RSN;
218 }
219}
220
221
741ed9fc
VK		 222static void wpas_wps_remove_dup_network(struct wpa_supplicant *wpa_s,
223 struct wpa_ssid *new_ssid)
224{
225 struct wpa_ssid *ssid, *next;
226
227 for (ssid = wpa_s->conf->ssid, next = ssid ? ssid->next : NULL; ssid;
228 ssid = next, next = ssid ? ssid->next : NULL) {
229 /*
230 * new_ssid has already been added to the list in
231 * wpas_wps_add_network(), so skip it.
232 */
233 if (ssid == new_ssid)
234 continue;
235
236 if (ssid->bssid_set || new_ssid->bssid_set) {
237 if (ssid->bssid_set != new_ssid->bssid_set)
238 continue;
239 if (os_memcmp(ssid->bssid, new_ssid->bssid, ETH_ALEN) !=
240 0)
241 continue;
242 }
243
244 /* compare SSID */
245 if (ssid->ssid_len == 0 || ssid->ssid_len != new_ssid->ssid_len)
246 continue;
247
248 if (ssid->ssid && new_ssid->ssid) {
249 if (os_memcmp(ssid->ssid, new_ssid->ssid,
250 ssid->ssid_len) != 0)
251 continue;
252 } else if (ssid->ssid || new_ssid->ssid)
253 continue;
254
255 /* compare security parameters */
256 if (ssid->auth_alg != new_ssid->auth_alg ||
257 ssid->key_mgmt != new_ssid->key_mgmt ||
258 ssid->proto != new_ssid->proto ||
259 ssid->pairwise_cipher != new_ssid->pairwise_cipher ||
260 ssid->group_cipher != new_ssid->group_cipher)
261 continue;
262
263 if (ssid->passphrase && new_ssid->passphrase) {
264 if (os_strlen(ssid->passphrase) !=
265 os_strlen(new_ssid->passphrase))
266 continue;
267 if (os_strcmp(ssid->passphrase, new_ssid->passphrase) !=
268 0)
269 continue;
270 } else if (ssid->passphrase || new_ssid->passphrase)
271 continue;
272
273 if ((ssid->psk_set || new_ssid->psk_set) &&
274 os_memcmp(ssid->psk, new_ssid->psk, sizeof(ssid->psk)) != 0)
275 continue;
276
277 if (ssid->auth_alg == WPA_ALG_WEP) {
278 if (ssid->wep_tx_keyidx != new_ssid->wep_tx_keyidx)
279 continue;
280 if (os_memcmp(ssid->wep_key, new_ssid->wep_key,
281 sizeof(ssid->wep_key)))
282 continue;
283 if (os_memcmp(ssid->wep_key_len, new_ssid->wep_key_len,
284 sizeof(ssid->wep_key_len)))
285 continue;
286 }
287
288 /* Remove the duplicated older network entry. */
289 wpa_printf(MSG_DEBUG, "Remove duplicate network %d", ssid->id);
290 wpas_notify_network_removed(wpa_s, ssid);
291 wpa_config_remove_network(wpa_s->conf, ssid->id);
292 }
293}
294
295
bcbbc7af
JM		 296static int wpa_supplicant_wps_cred(void *ctx,
297 const struct wps_credential *cred)
fa201b69
JM		 298{
299 struct wpa_supplicant *wpa_s = ctx;
300 struct wpa_ssid *ssid = wpa_s->current_ssid;
522b5b6e 301 u8 key_idx = 0;
49eba5f8 302 u16 auth_type;
2c4f80d5 303#ifdef CONFIG_WPS_REG_DISABLE_OPEN
f981eabc 304 int registrar = 0;
2c4f80d5 305#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
fa201b69 306
47662164
JM		 307 if ((wpa_s->conf->wps_cred_processing == 1 ||
308 wpa_s->conf->wps_cred_processing == 2) && cred->cred_attr) {
309 size_t blen = cred->cred_attr_len * 2 + 1;
310 char *buf = os_malloc(blen);
311 if (buf) {
312 wpa_snprintf_hex(buf, blen,
313 cred->cred_attr, cred->cred_attr_len);
314 wpa_msg(wpa_s, MSG_INFO, "%s%s",
315 WPS_EVENT_CRED_RECEIVED, buf);
316 os_free(buf);
317 }
8bac466b
JM		 318
319 wpas_notify_wps_credential(wpa_s, cred);
47662164
JM		 320 } else
321 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_CRED_RECEIVED);
fa201b69 322
eca6e0a9
JM		 323 wpa_hexdump_key(MSG_DEBUG, "WPS: Received Credential attribute",
324 cred->cred_attr, cred->cred_attr_len);
325
47662164
JM		 326 if (wpa_s->conf->wps_cred_processing == 1)
327 return 0;
328
73267b9c
JM		 329 wpa_hexdump_ascii(MSG_DEBUG, "WPS: SSID", cred->ssid, cred->ssid_len);
330 wpa_printf(MSG_DEBUG, "WPS: Authentication Type 0x%x",
331 cred->auth_type);
332 wpa_printf(MSG_DEBUG, "WPS: Encryption Type 0x%x", cred->encr_type);
333 wpa_printf(MSG_DEBUG, "WPS: Network Key Index %d", cred->key_idx);
334 wpa_hexdump_key(MSG_DEBUG, "WPS: Network Key",
335 cred->key, cred->key_len);
336 wpa_printf(MSG_DEBUG, "WPS: MAC Address " MACSTR,
337 MAC2STR(cred->mac_addr));
338
49eba5f8
JM		 339 auth_type = cred->auth_type;
340 if (auth_type == (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
341 wpa_printf(MSG_DEBUG, "WPS: Workaround - convert mixed-mode "
342 "auth_type into WPA2PSK");
343 auth_type = WPS_AUTH_WPA2PSK;
344 }
345
346 if (auth_type != WPS_AUTH_OPEN &&
347 auth_type != WPS_AUTH_SHARED &&
348 auth_type != WPS_AUTH_WPAPSK &&
349 auth_type != WPS_AUTH_WPA2PSK) {
f286077d 350 wpa_printf(MSG_DEBUG, "WPS: Ignored credentials for "
49eba5f8
JM		 351 "unsupported authentication type 0x%x",
352 auth_type);
f286077d
JM		 353 return 0;
354 }
355
b363121a
JM		 356 if (auth_type == WPS_AUTH_WPAPSK || auth_type == WPS_AUTH_WPA2PSK) {
357 if (cred->key_len < 8 || cred->key_len > 2 * PMK_LEN) {
358 wpa_printf(MSG_ERROR, "WPS: Reject PSK credential with "
359 "invalid Network Key length %lu",
360 (unsigned long) cred->key_len);
361 return -1;
362 }
363 }
364
fa201b69
JM		 365 if (ssid && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
366 wpa_printf(MSG_DEBUG, "WPS: Replace WPS network block based "
367 "on the received credential");
2c4f80d5 368#ifdef CONFIG_WPS_REG_DISABLE_OPEN
f981eabc
JM		 369 if (ssid->eap.identity &&
370 ssid->eap.identity_len == WSC_ID_REGISTRAR_LEN &&
371 os_memcmp(ssid->eap.identity, WSC_ID_REGISTRAR,
372 WSC_ID_REGISTRAR_LEN) == 0)
373 registrar = 1;
2c4f80d5 374#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
fa201b69
JM		 375 os_free(ssid->eap.identity);
376 ssid->eap.identity = NULL;
377 ssid->eap.identity_len = 0;
378 os_free(ssid->eap.phase1);
379 ssid->eap.phase1 = NULL;
380 os_free(ssid->eap.eap_methods);
381 ssid->eap.eap_methods = NULL;
cae2119c 382 if (!ssid->p2p_group) {
2ff99b3c 383 ssid->temporary = 0;
cae2119c
JM		 384 ssid->bssid_set = 0;
385 }
00e5e3d5
JM		 386 ssid->disabled_until.sec = 0;
387 ssid->disabled_until.usec = 0;
388 ssid->auth_failures = 0;
fa201b69
JM		 389 } else {
390 wpa_printf(MSG_DEBUG, "WPS: Create a new network based on the "
391 "received credential");
392 ssid = wpa_config_add_network(wpa_s->conf);
393 if (ssid == NULL)
394 return -1;
8bac466b 395 wpas_notify_network_added(wpa_s, ssid);
fa201b69
JM		 396 }
397
398 wpa_config_set_network_defaults(ssid);
399
400 os_free(ssid->ssid);
401 ssid->ssid = os_malloc(cred->ssid_len);
402 if (ssid->ssid) {
403 os_memcpy(ssid->ssid, cred->ssid, cred->ssid_len);
404 ssid->ssid_len = cred->ssid_len;
405 }
406
407 switch (cred->encr_type) {
408 case WPS_ENCR_NONE:
fa201b69
JM		 409 break;
410 case WPS_ENCR_WEP:
4b195a1b
AT		 411 if (cred->key_len <= 0)
412 break;
413 if (cred->key_len != 5 && cred->key_len != 13 &&
414 cred->key_len != 10 && cred->key_len != 26) {
415 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key length "
416 "%lu", (unsigned long) cred->key_len);
417 return -1;
418 }
522b5b6e 419 if (cred->key_idx > NUM_WEP_KEYS) {
4b195a1b
AT		 420 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key index %d",
421 cred->key_idx);
422 return -1;
423 }
522b5b6e
AT		 424 if (cred->key_idx)
425 key_idx = cred->key_idx - 1;
4b195a1b
AT		 426 if (cred->key_len == 10 || cred->key_len == 26) {
427 if (hexstr2bin((char *) cred->key,
428 ssid->wep_key[key_idx],
429 cred->key_len / 2) < 0) {
430 wpa_printf(MSG_ERROR, "WPS: Invalid WEP Key "
431 "%d", key_idx);
432 return -1;
433 }
434 ssid->wep_key_len[key_idx] = cred->key_len / 2;
435 } else {
436 os_memcpy(ssid->wep_key[key_idx], cred->key,
fa201b69 437 cred->key_len);
4b195a1b 438 ssid->wep_key_len[key_idx] = cred->key_len;
fa201b69 439 }
4b195a1b 440 ssid->wep_tx_keyidx = key_idx;
fa201b69
JM		 441 break;
442 case WPS_ENCR_TKIP:
443 ssid->pairwise_cipher = WPA_CIPHER_TKIP;
fa201b69
JM		 444 break;
445 case WPS_ENCR_AES:
446 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
fa201b69
JM		 447 break;
448 }
449
49eba5f8 450 switch (auth_type) {
fa201b69
JM		 451 case WPS_AUTH_OPEN:
452 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
453 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
454 ssid->proto = 0;
f981eabc
JM		 455#ifdef CONFIG_WPS_REG_DISABLE_OPEN
456 if (registrar) {
457 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OPEN_NETWORK
458 "id=%d - Credentials for an open "
459 "network disabled by default - use "
460 "'select_network %d' to enable",
461 ssid->id, ssid->id);
462 ssid->disabled = 1;
463 }
464#endif /* CONFIG_WPS_REG_DISABLE_OPEN */
fa201b69
JM		 465 break;
466 case WPS_AUTH_SHARED:
467 ssid->auth_alg = WPA_AUTH_ALG_SHARED;
468 ssid->key_mgmt = WPA_KEY_MGMT_NONE;
469 ssid->proto = 0;
470 break;
471 case WPS_AUTH_WPAPSK:
472 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
473 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
474 ssid->proto = WPA_PROTO_WPA;
475 break;
fa201b69
JM		 476 case WPS_AUTH_WPA2PSK:
477 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
478 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
479 ssid->proto = WPA_PROTO_RSN;
480 break;
481 }
482
483 if (ssid->key_mgmt == WPA_KEY_MGMT_PSK) {
484 if (cred->key_len == 2 * PMK_LEN) {
485 if (hexstr2bin((const char *) cred->key, ssid->psk,
486 PMK_LEN)) {
487 wpa_printf(MSG_ERROR, "WPS: Invalid Network "
488 "Key");
489 return -1;
490 }
491 ssid->psk_set = 1;
d1c8ac88 492 ssid->export_keys = 1;
fa201b69
JM		 493 } else if (cred->key_len >= 8 && cred->key_len < 2 * PMK_LEN) {
494 os_free(ssid->passphrase);
495 ssid->passphrase = os_malloc(cred->key_len + 1);
496 if (ssid->passphrase == NULL)
497 return -1;
498 os_memcpy(ssid->passphrase, cred->key, cred->key_len);
499 ssid->passphrase[cred->key_len] = '\0';
500 wpa_config_update_psk(ssid);
d1c8ac88 501 ssid->export_keys = 1;
fa201b69
JM		 502 } else {
503 wpa_printf(MSG_ERROR, "WPS: Invalid Network Key "
504 "length %lu",
505 (unsigned long) cred->key_len);
506 return -1;
507 }
508 }
509
7cc1b6c9
JM		 510 wpas_wps_security_workaround(wpa_s, ssid, cred);
511
bd3a3737
JM		 512 if (cred->ap_channel)
513 wpa_s->wps_ap_channel = cred->ap_channel;
514
741ed9fc
VK		 515 wpas_wps_remove_dup_network(wpa_s, ssid);
516
fa201b69
JM		 517#ifndef CONFIG_NO_CONFIG_WRITE
518 if (wpa_s->conf->update_config &&
519 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
520 wpa_printf(MSG_DEBUG, "WPS: Failed to update configuration");
521 return -1;
522 }
523#endif /* CONFIG_NO_CONFIG_WRITE */
524
6fbcbc07
SD		 525 /*
526 * Optimize the post-WPS scan based on the channel used during
527 * the provisioning in case EAP-Failure is not received.
528 */
529 wpa_s->after_wps = 5;
530 wpa_s->wps_freq = wpa_s->assoc_freq;
531
fa201b69
JM		 532 return 0;
533}
534
535
b89883a4
JM		 536#ifdef CONFIG_P2P
537static void wpas_wps_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
538{
539 struct wpa_supplicant *wpa_s = eloop_ctx;
540 wpas_p2p_notif_pbc_overlap(wpa_s);
541}
542#endif /* CONFIG_P2P */
543
544
4b68290e
JM		 545static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant *wpa_s,
546 struct wps_event_m2d *m2d)
547{
548 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_M2D
549 "dev_password_id=%d config_error=%d",
550 m2d->dev_password_id, m2d->config_error);
8bac466b 551 wpas_notify_wps_event_m2d(wpa_s, m2d);
b89883a4
JM		 552#ifdef CONFIG_P2P
553 if (wpa_s->parent && wpa_s->parent != wpa_s) {
554 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_M2D
555 "dev_password_id=%d config_error=%d",
556 m2d->dev_password_id, m2d->config_error);
557 }
558 if (m2d->config_error == WPS_CFG_MULTIPLE_PBC_DETECTED) {
559 /*
560 * Notify P2P from eloop timeout to avoid issues with the
561 * interface getting removed while processing a message.
562 */
563 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb, wpa_s,
564 NULL);
565 }
566#endif /* CONFIG_P2P */
4b68290e
JM		 567}
568
569
c5cf0a18
CWY		 570static const char * wps_event_fail_reason[NUM_WPS_EI_VALUES] = {
571 "No Error", /* WPS_EI_NO_ERROR */
572 "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
573 "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
574};
575
469fc3a4
JM		 576static void wpa_supplicant_wps_event_fail(struct wpa_supplicant *wpa_s,
577 struct wps_event_fail *fail)
578{
c5cf0a18
CWY		 579 if (fail->error_indication > 0 &&
580 fail->error_indication < NUM_WPS_EI_VALUES) {
581 wpa_msg(wpa_s, MSG_INFO,
582 WPS_EVENT_FAIL "msg=%d config_error=%d reason=%d (%s)",
583 fail->msg, fail->config_error, fail->error_indication,
584 wps_event_fail_reason[fail->error_indication]);
585 if (wpa_s->parent && wpa_s->parent != wpa_s)
586 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
587 "msg=%d config_error=%d reason=%d (%s)",
588 fail->msg, fail->config_error,
589 fail->error_indication,
590 wps_event_fail_reason[fail->error_indication]);
591 } else {
592 wpa_msg(wpa_s, MSG_INFO,
593 WPS_EVENT_FAIL "msg=%d config_error=%d",
545cc6af 594 fail->msg, fail->config_error);
c5cf0a18
CWY		 595 if (wpa_s->parent && wpa_s->parent != wpa_s)
596 wpa_msg(wpa_s->parent, MSG_INFO, WPS_EVENT_FAIL
597 "msg=%d config_error=%d",
598 fail->msg, fail->config_error);
599 }
469fc3a4 600 wpas_clear_wps(wpa_s);
8bac466b 601 wpas_notify_wps_event_fail(wpa_s, fail);
3734552f
JS		 602#ifdef CONFIG_P2P
603 wpas_p2p_wps_failed(wpa_s, fail);
604#endif /* CONFIG_P2P */
469fc3a4
JM		 605}
606
607
ec947ffc
SD		 608static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx);
609
610static void wpas_wps_reenable_networks(struct wpa_supplicant *wpa_s)
611{
612 struct wpa_ssid *ssid;
318e772a 613 int changed = 0;
ec947ffc
SD		 614
615 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
616
617 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
618 if (ssid->disabled_for_connect && ssid->disabled) {
619 ssid->disabled_for_connect = 0;
620 ssid->disabled = 0;
621 wpas_notify_network_enabled_changed(wpa_s, ssid);
318e772a 622 changed++;
ec947ffc
SD		 623 }
624 }
318e772a
JM		 625
626 if (changed) {
627#ifndef CONFIG_NO_CONFIG_WRITE
628 if (wpa_s->conf->update_config &&
629 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
630 wpa_printf(MSG_DEBUG, "WPS: Failed to update "
631 "configuration");
632 }
633#endif /* CONFIG_NO_CONFIG_WRITE */
634 }
ec947ffc
SD		 635}
636
637
638static void wpas_wps_reenable_networks_cb(void *eloop_ctx, void *timeout_ctx)
639{
640 struct wpa_supplicant *wpa_s = eloop_ctx;
641 /* Enable the networks disabled during wpas_wps_reassoc */
642 wpas_wps_reenable_networks(wpa_s);
643}
644
645
ad5302a1
JM		 646static void wpa_supplicant_wps_event_success(struct wpa_supplicant *wpa_s)
647{
648 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_SUCCESS);
a6099152 649 wpa_s->wps_success = 1;
8bac466b 650 wpas_notify_wps_event_success(wpa_s);
f3e907a7
JM		 651 if (wpa_s->current_ssid)
652 wpas_clear_temp_disabled(wpa_s, wpa_s->current_ssid, 1);
653 wpa_s->extra_blacklist_count = 0;
ec947ffc
SD		 654
655 /*
656 * Enable the networks disabled during wpas_wps_reassoc after 10
657 * seconds. The 10 seconds timer is to allow the data connection to be
658 * formed before allowing other networks to be selected.
659 */
660 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
661 NULL);
662
b22128ef
JM		 663#ifdef CONFIG_P2P
664 wpas_p2p_wps_success(wpa_s, wpa_s->bssid, 0);
665#endif /* CONFIG_P2P */
ad5302a1
JM		 666}
667
668
b78bc3a3
JM		 669static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant *wpa_s,
670 struct wps_event_er_ap *ap)
671{
672 char uuid_str[100];
ed45947e 673 char dev_type[WPS_DEV_TYPE_BUFSIZE];
e694b344 674
b78bc3a3 675 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
e694b344 676 if (ap->pri_dev_type)
ed45947e
JM		 677 wps_dev_type_bin2str(ap->pri_dev_type, dev_type,
678 sizeof(dev_type));
e694b344
JM		 679 else
680 dev_type[0] = '\0';
681
682 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_ADD "%s " MACSTR
683 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
684 uuid_str, MAC2STR(ap->mac_addr), dev_type, ap->wps_state,
b78bc3a3
JM		 685 ap->friendly_name ? ap->friendly_name : "",
686 ap->manufacturer ? ap->manufacturer : "",
687 ap->model_description ? ap->model_description : "",
688 ap->model_name ? ap->model_name : "",
689 ap->manufacturer_url ? ap->manufacturer_url : "",
690 ap->model_url ? ap->model_url : "");
691}
692
693
694static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant *wpa_s,
695 struct wps_event_er_ap *ap)
696{
697 char uuid_str[100];
698 uuid_bin2str(ap->uuid, uuid_str, sizeof(uuid_str));
699 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_REMOVE "%s", uuid_str);
700}
701
702
703static void wpa_supplicant_wps_event_er_enrollee_add(
704 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
705{
706 char uuid_str[100];
ed45947e 707 char dev_type[WPS_DEV_TYPE_BUFSIZE];
b78bc3a3
JM		 708
709 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
710 if (enrollee->pri_dev_type)
ed45947e
JM		 711 wps_dev_type_bin2str(enrollee->pri_dev_type, dev_type,
712 sizeof(dev_type));
b78bc3a3
JM		 713 else
714 dev_type[0] = '\0';
715
716 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_ADD "%s " MACSTR
717 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
718 "|%s|%s|%s|%s|%s|",
719 uuid_str, MAC2STR(enrollee->mac_addr), enrollee->m1_received,
720 enrollee->config_methods, enrollee->dev_passwd_id, dev_type,
721 enrollee->dev_name ? enrollee->dev_name : "",
722 enrollee->manufacturer ? enrollee->manufacturer : "",
723 enrollee->model_name ? enrollee->model_name : "",
724 enrollee->model_number ? enrollee->model_number : "",
725 enrollee->serial_number ? enrollee->serial_number : "");
726}
727
728
729static void wpa_supplicant_wps_event_er_enrollee_remove(
730 struct wpa_supplicant *wpa_s, struct wps_event_er_enrollee *enrollee)
731{
732 char uuid_str[100];
733 uuid_bin2str(enrollee->uuid, uuid_str, sizeof(uuid_str));
734 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_ENROLLEE_REMOVE "%s " MACSTR,
735 uuid_str, MAC2STR(enrollee->mac_addr));
736}
737
738
15dbf129
JM		 739static void wpa_supplicant_wps_event_er_ap_settings(
740 struct wpa_supplicant *wpa_s,
741 struct wps_event_er_ap_settings *ap_settings)
742{
743 char uuid_str[100];
744 char key_str[65];
745 const struct wps_credential *cred = ap_settings->cred;
746
747 key_str[0] = '\0';
748 if (cred->auth_type & (WPS_AUTH_WPAPSK | WPS_AUTH_WPA2PSK)) {
749 if (cred->key_len >= 8 && cred->key_len <= 64) {
750 os_memcpy(key_str, cred->key, cred->key_len);
751 key_str[cred->key_len] = '\0';
752 }
753 }
754
755 uuid_bin2str(ap_settings->uuid, uuid_str, sizeof(uuid_str));
756 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
757 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_ER_AP_SETTINGS
758 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
759 "key=%s",
760 uuid_str, wpa_ssid_txt(cred->ssid, cred->ssid_len),
761 cred->auth_type, cred->encr_type, key_str);
762}
763
764
3e7533b3
JM		 765static void wpa_supplicant_wps_event_er_set_sel_reg(
766 struct wpa_supplicant *wpa_s,
767 struct wps_event_er_set_selected_registrar *ev)
768{
769 char uuid_str[100];
770
771 uuid_bin2str(ev->uuid, uuid_str, sizeof(uuid_str));
772 switch (ev->state) {
773 case WPS_ER_SET_SEL_REG_START:
774 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
775 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
776 "sel_reg_config_methods=0x%x",
777 uuid_str, ev->sel_reg, ev->dev_passwd_id,
778 ev->sel_reg_config_methods);
779 break;
780 case WPS_ER_SET_SEL_REG_DONE:
781 wpa_msg(wpa_s, MSG_DEBUG, WPS_EVENT_ER_SET_SEL_REG
782 "uuid=%s state=DONE", uuid_str);
783 break;
784 case WPS_ER_SET_SEL_REG_FAILED:
785 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_ER_SET_SEL_REG
786 "uuid=%s state=FAILED", uuid_str);
787 break;
788 }
789}
790
791
4b68290e
JM		 792static void wpa_supplicant_wps_event(void *ctx, enum wps_event event,
793 union wps_event_data *data)
794{
795 struct wpa_supplicant *wpa_s = ctx;
796 switch (event) {
797 case WPS_EV_M2D:
798 wpa_supplicant_wps_event_m2d(wpa_s, &data->m2d);
799 break;
469fc3a4
JM		 800 case WPS_EV_FAIL:
801 wpa_supplicant_wps_event_fail(wpa_s, &data->fail);
802 break;
ad5302a1
JM		 803 case WPS_EV_SUCCESS:
804 wpa_supplicant_wps_event_success(wpa_s);
805 break;
3b2cf800 806 case WPS_EV_PWD_AUTH_FAIL:
70d84f11
JM		 807#ifdef CONFIG_AP
808 if (wpa_s->ap_iface && data->pwd_auth_fail.enrollee)
809 wpa_supplicant_ap_pwd_auth_fail(wpa_s);
810#endif /* CONFIG_AP */
3b2cf800 811 break;
63330c68
OK		 812 case WPS_EV_PBC_OVERLAP:
813 break;
814 case WPS_EV_PBC_TIMEOUT:
815 break;
b78bc3a3
JM		 816 case WPS_EV_ER_AP_ADD:
817 wpa_supplicant_wps_event_er_ap_add(wpa_s, &data->ap);
818 break;
819 case WPS_EV_ER_AP_REMOVE:
820 wpa_supplicant_wps_event_er_ap_remove(wpa_s, &data->ap);
821 break;
822 case WPS_EV_ER_ENROLLEE_ADD:
823 wpa_supplicant_wps_event_er_enrollee_add(wpa_s,
824 &data->enrollee);
825 break;
826 case WPS_EV_ER_ENROLLEE_REMOVE:
827 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s,
828 &data->enrollee);
829 break;
15dbf129
JM		 830 case WPS_EV_ER_AP_SETTINGS:
831 wpa_supplicant_wps_event_er_ap_settings(wpa_s,
832 &data->ap_settings);
833 break;
3e7533b3
JM		 834 case WPS_EV_ER_SET_SELECTED_REGISTRAR:
835 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s,
836 &data->set_sel_reg);
837 break;
32cdcf15
JM		 838 case WPS_EV_AP_PIN_SUCCESS:
839 break;
4b68290e
JM		 840 }
841}
842
843
f90c86d4 844enum wps_request_type wpas_wps_get_req_type(struct wpa_ssid *ssid)
fa201b69 845{
b01c18a8
JM		 846 if (eap_is_wps_pbc_enrollee(&ssid->eap) ||
847 eap_is_wps_pin_enrollee(&ssid->eap))
848 return WPS_REQ_ENROLLEE;
849 else
850 return WPS_REQ_REGISTRAR;
fa201b69 851}
116654ce
JM		 852
853
fcc60db4
JM		 854static void wpas_clear_wps(struct wpa_supplicant *wpa_s)
855{
856 int id;
20a0b03d
JM		 857 struct wpa_ssid *ssid, *remove_ssid = NULL, *prev_current;
858
859 prev_current = wpa_s->current_ssid;
fcc60db4 860
ec947ffc
SD		 861 /* Enable the networks disabled during wpas_wps_reassoc */
862 wpas_wps_reenable_networks(wpa_s);
863
fcc60db4
JM		 864 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
865
866 /* Remove any existing WPS network from configuration */
867 ssid = wpa_s->conf->ssid;
868 while (ssid) {
f0477201 869 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
8bac466b 870 if (ssid == wpa_s->current_ssid) {
f0477201 871 wpa_s->current_ssid = NULL;
8bac466b
JM		 872 if (ssid != NULL)
873 wpas_notify_network_changed(wpa_s);
874 }
fcc60db4 875 id = ssid->id;
8bac466b 876 remove_ssid = ssid;
f0477201 877 } else
fcc60db4
JM		 878 id = -1;
879 ssid = ssid->next;
8bac466b 880 if (id >= 0) {
20a0b03d
JM		 881 if (prev_current == remove_ssid) {
882 wpa_sm_set_config(wpa_s->wpa, NULL);
883 eapol_sm_notify_config(wpa_s->eapol, NULL,
884 NULL);
885 }
8bac466b 886 wpas_notify_network_removed(wpa_s, remove_ssid);
fcc60db4 887 wpa_config_remove_network(wpa_s->conf, id);
8bac466b 888 }
fcc60db4 889 }
f9f0526b
JM		 890
891 wpas_wps_clear_ap_info(wpa_s);
fcc60db4
JM		 892}
893
894
895static void wpas_wps_timeout(void *eloop_ctx, void *timeout_ctx)
896{
897 struct wpa_supplicant *wpa_s = eloop_ctx;
014732ea
AC		 898 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_TIMEOUT "Requested operation timed "
899 "out");
fcc60db4
JM		 900 wpas_clear_wps(wpa_s);
901}
902
903
904static struct wpa_ssid * wpas_wps_add_network(struct wpa_supplicant *wpa_s,
905 int registrar, const u8 *bssid)
906{
907 struct wpa_ssid *ssid;
908
909 ssid = wpa_config_add_network(wpa_s->conf);
910 if (ssid == NULL)
911 return NULL;
8bac466b 912 wpas_notify_network_added(wpa_s, ssid);
fcc60db4 913 wpa_config_set_network_defaults(ssid);
2ff99b3c 914 ssid->temporary = 1;
fcc60db4
JM		 915 if (wpa_config_set(ssid, "key_mgmt", "WPS", 0) < 0 ||
916 wpa_config_set(ssid, "eap", "WSC", 0) < 0 ||
917 wpa_config_set(ssid, "identity", registrar ?
918 "\"" WSC_ID_REGISTRAR "\"" :
919 "\"" WSC_ID_ENROLLEE "\"", 0) < 0) {
8bac466b 920 wpas_notify_network_removed(wpa_s, ssid);
fcc60db4
JM		 921 wpa_config_remove_network(wpa_s->conf, ssid->id);
922 return NULL;
923 }
924
925 if (bssid) {
b2c5a4a3 926#ifndef CONFIG_P2P
59f2caa9 927 struct wpa_bss *bss;
f7e54365 928 int count = 0;
b2c5a4a3 929#endif /* CONFIG_P2P */
fcc60db4
JM		 930
931 os_memcpy(ssid->bssid, bssid, ETH_ALEN);
24c23d1b 932 ssid->bssid_set = 1;
fcc60db4 933
b2c5a4a3
JM		 934 /*
935 * Note: With P2P, the SSID may change at the time the WPS
936 * provisioning is started, so better not filter the AP based
937 * on the current SSID in the scan results.
938 */
939#ifndef CONFIG_P2P
59f2caa9
JM		 940 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
941 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) != 0)
fcc60db4
JM		 942 continue;
943
fcc60db4 944 os_free(ssid->ssid);
59f2caa9 945 ssid->ssid = os_malloc(bss->ssid_len);
fcc60db4
JM		 946 if (ssid->ssid == NULL)
947 break;
59f2caa9
JM		 948 os_memcpy(ssid->ssid, bss->ssid, bss->ssid_len);
949 ssid->ssid_len = bss->ssid_len;
f7e54365
JM		 950 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Picked SSID from "
951 "scan results",
952 ssid->ssid, ssid->ssid_len);
953 count++;
954 }
955
956 if (count > 1) {
957 wpa_printf(MSG_DEBUG, "WPS: More than one SSID found "
958 "for the AP; use wildcard");
959 os_free(ssid->ssid);
960 ssid->ssid = NULL;
961 ssid->ssid_len = 0;
fcc60db4 962 }
b2c5a4a3 963#endif /* CONFIG_P2P */
fcc60db4
JM		 964 }
965
966 return ssid;
967}
968
969
170f5663
JM		 970static void wpas_wps_temp_disable(struct wpa_supplicant *wpa_s,
971 struct wpa_ssid *selected)
fcc60db4
JM		 972{
973 struct wpa_ssid *ssid;
974
d9d87c33
JM		 975 if (wpa_s->current_ssid)
976 wpa_supplicant_deauthenticate(
977 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
978
fcc60db4
JM		 979 /* Mark all other networks disabled and trigger reassociation */
980 ssid = wpa_s->conf->ssid;
981 while (ssid) {
8bac466b 982 int was_disabled = ssid->disabled;
ec947ffc 983 ssid->disabled_for_connect = 0;
c2762e41
JS		 984 /*
985 * In case the network object corresponds to a persistent group
986 * then do not send out network disabled signal. In addition,
987 * do not change disabled status of persistent network objects
988 * from 2 to 1 should we connect to another network.
989 */
990 if (was_disabled != 2) {
991 ssid->disabled = ssid != selected;
ec947ffc
SD		 992 if (was_disabled != ssid->disabled) {
993 if (ssid->disabled)
994 ssid->disabled_for_connect = 1;
c2762e41
JS		 995 wpas_notify_network_enabled_changed(wpa_s,
996 ssid);
ec947ffc 997 }
c2762e41 998 }
fcc60db4
JM		 999 ssid = ssid->next;
1000 }
170f5663
JM		 1001}
1002
1003
1004static void wpas_wps_reassoc(struct wpa_supplicant *wpa_s,
1005 struct wpa_ssid *selected, const u8 *bssid)
1006{
1007 struct wpa_bss *bss;
1008
1009 wpa_s->after_wps = 0;
1010 wpa_s->known_wps_freq = 0;
1011 if (bssid) {
1012 bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1013 if (bss && bss->freq > 0) {
1014 wpa_s->known_wps_freq = 1;
1015 wpa_s->wps_freq = bss->freq;
1016 }
1017 }
1018
1019 wpas_wps_temp_disable(wpa_s, selected);
1020
fcc60db4
JM		 1021 wpa_s->disconnected = 0;
1022 wpa_s->reassociate = 1;
a6099152 1023 wpa_s->scan_runs = 0;
0b7a25c0 1024 wpa_s->normal_scans = 0;
a6099152
JM		 1025 wpa_s->wps_success = 0;
1026 wpa_s->blacklist_cleared = 0;
fcc60db4
JM		 1027 wpa_supplicant_req_scan(wpa_s, 0, 0);
1028}
1029
1030
9fa243b2
JM		 1031int wpas_wps_start_pbc(struct wpa_supplicant *wpa_s, const u8 *bssid,
1032 int p2p_group)
fcc60db4
JM		 1033{
1034 struct wpa_ssid *ssid;
1035 wpas_clear_wps(wpa_s);
1036 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
1037 if (ssid == NULL)
1038 return -1;
9fa243b2
JM		 1039 ssid->temporary = 1;
1040 ssid->p2p_group = p2p_group;
812bf56a 1041#ifdef CONFIG_P2P
e9a7ae41
JM		 1042 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1043 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1044 if (ssid->ssid) {
1045 ssid->ssid_len = wpa_s->go_params->ssid_len;
1046 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1047 ssid->ssid_len);
1048 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1049 "SSID", ssid->ssid, ssid->ssid_len);
1050 }
1051 }
812bf56a 1052#endif /* CONFIG_P2P */
9c75e9fb
JM		 1053 if (wpa_config_set(ssid, "phase1", "\"pbc=1\"", 0) < 0)
1054 return -1;
42f50264
JM		 1055 if (wpa_s->wps_fragment_size)
1056 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
fcc60db4
JM		 1057 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1058 wpa_s, NULL);
1e7fb4f1 1059 wpas_wps_reassoc(wpa_s, ssid, bssid);
fcc60db4
JM		 1060 return 0;
1061}
1062
1063
1064int wpas_wps_start_pin(struct wpa_supplicant *wpa_s, const u8 *bssid,
3c5126a4 1065 const char *pin, int p2p_group, u16 dev_pw_id)
fcc60db4
JM		 1066{
1067 struct wpa_ssid *ssid;
46bdb83a 1068 char val[128];
fcc60db4
JM		 1069 unsigned int rpin = 0;
1070
1071 wpas_clear_wps(wpa_s);
1072 ssid = wpas_wps_add_network(wpa_s, 0, bssid);
1073 if (ssid == NULL)
1074 return -1;
9fa243b2
JM		 1075 ssid->temporary = 1;
1076 ssid->p2p_group = p2p_group;
812bf56a 1077#ifdef CONFIG_P2P
e9a7ae41
JM		 1078 if (p2p_group && wpa_s->go_params && wpa_s->go_params->ssid_len) {
1079 ssid->ssid = os_zalloc(wpa_s->go_params->ssid_len + 1);
1080 if (ssid->ssid) {
1081 ssid->ssid_len = wpa_s->go_params->ssid_len;
1082 os_memcpy(ssid->ssid, wpa_s->go_params->ssid,
1083 ssid->ssid_len);
1084 wpa_hexdump_ascii(MSG_DEBUG, "WPS: Use specific AP "
1085 "SSID", ssid->ssid, ssid->ssid_len);
1086 }
1087 }
812bf56a 1088#endif /* CONFIG_P2P */
fcc60db4 1089 if (pin)
3c5126a4
JM		 1090 os_snprintf(val, sizeof(val), "\"pin=%s dev_pw_id=%u\"",
1091 pin, dev_pw_id);
fcc60db4
JM		 1092 else {
1093 rpin = wps_generate_pin();
3c5126a4
JM		 1094 os_snprintf(val, sizeof(val), "\"pin=%08d dev_pw_id=%u\"",
1095 rpin, dev_pw_id);
fcc60db4 1096 }
9c75e9fb
JM		 1097 if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1098 return -1;
42f50264
JM		 1099 if (wpa_s->wps_fragment_size)
1100 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
fcc60db4
JM		 1101 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1102 wpa_s, NULL);
f9f0526b 1103 wpa_s->wps_ap_iter = 1;
1e7fb4f1 1104 wpas_wps_reassoc(wpa_s, ssid, bssid);
fcc60db4
JM		 1105 return rpin;
1106}
1107
1108
2f9929ff
AC		 1109/* Cancel the wps pbc/pin requests */
1110int wpas_wps_cancel(struct wpa_supplicant *wpa_s)
1111{
1112#ifdef CONFIG_AP
1113 if (wpa_s->ap_iface) {
1114 wpa_printf(MSG_DEBUG, "WPS: Cancelling in AP mode");
1115 return wpa_supplicant_ap_wps_cancel(wpa_s);
1116 }
1117#endif /* CONFIG_AP */
1118
476dea24
JM		 1119 if (wpa_s->wpa_state == WPA_SCANNING ||
1120 wpa_s->wpa_state == WPA_DISCONNECTED) {
2f9929ff
AC		 1121 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - cancel scan");
1122 wpa_supplicant_cancel_scan(wpa_s);
1123 wpas_clear_wps(wpa_s);
1124 } else if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
1125 wpa_printf(MSG_DEBUG, "WPS: Cancel operation - "
1126 "deauthenticate");
1127 wpa_supplicant_deauthenticate(wpa_s,
1128 WLAN_REASON_DEAUTH_LEAVING);
1129 wpas_clear_wps(wpa_s);
ec947ffc
SD		 1130 } else {
1131 wpas_wps_reenable_networks(wpa_s);
f9f0526b 1132 wpas_wps_clear_ap_info(wpa_s);
ec947ffc 1133 }
2f9929ff
AC		 1134
1135 return 0;
1136}
1137
1138
fcc60db4 1139int wpas_wps_start_reg(struct wpa_supplicant *wpa_s, const u8 *bssid,
52eb293d 1140 const char *pin, struct wps_new_ap_settings *settings)
fcc60db4
JM		 1141{
1142 struct wpa_ssid *ssid;
52eb293d
JM		 1143 char val[200];
1144 char *pos, *end;
1145 int res;
fcc60db4
JM		 1146
1147 if (!pin)
1148 return -1;
1149 wpas_clear_wps(wpa_s);
1150 ssid = wpas_wps_add_network(wpa_s, 1, bssid);
1151 if (ssid == NULL)
1152 return -1;
2ff99b3c 1153 ssid->temporary = 1;
52eb293d
JM		 1154 pos = val;
1155 end = pos + sizeof(val);
1156 res = os_snprintf(pos, end - pos, "\"pin=%s", pin);
1157 if (res < 0 || res >= end - pos)
1158 return -1;
1159 pos += res;
1160 if (settings) {
1161 res = os_snprintf(pos, end - pos, " new_ssid=%s new_auth=%s "
1162 "new_encr=%s new_key=%s",
1163 settings->ssid_hex, settings->auth,
1164 settings->encr, settings->key_hex);
1165 if (res < 0 || res >= end - pos)
1166 return -1;
1167 pos += res;
1168 }
1169 res = os_snprintf(pos, end - pos, "\"");
1170 if (res < 0 || res >= end - pos)
1171 return -1;
9c75e9fb
JM		 1172 if (wpa_config_set(ssid, "phase1", val, 0) < 0)
1173 return -1;
42f50264
JM		 1174 if (wpa_s->wps_fragment_size)
1175 ssid->eap.fragment_size = wpa_s->wps_fragment_size;
fcc60db4
JM		 1176 eloop_register_timeout(WPS_PBC_WALK_TIME, 0, wpas_wps_timeout,
1177 wpa_s, NULL);
1e7fb4f1 1178 wpas_wps_reassoc(wpa_s, ssid, bssid);
fcc60db4
JM		 1179 return 0;
1180}
1181
1182
c5adf528
JM		 1183static int wpas_wps_new_psk_cb(void *ctx, const u8 *mac_addr, const u8 *psk,
1184 size_t psk_len)
1185{
1186 wpa_printf(MSG_DEBUG, "WPS: Received new WPA/WPA2-PSK from WPS for "
1187 "STA " MACSTR, MAC2STR(mac_addr));
1188 wpa_hexdump_key(MSG_DEBUG, "Per-device PSK", psk, psk_len);
1189
1190 /* TODO */
1191
1192 return 0;
1193}
1194
1195
1196static void wpas_wps_pin_needed_cb(void *ctx, const u8 *uuid_e,
1197 const struct wps_device_data *dev)
1198{
1199 char uuid[40], txt[400];
1200 int len;
96750ea5 1201 char devtype[WPS_DEV_TYPE_BUFSIZE];
c5adf528
JM		 1202 if (uuid_bin2str(uuid_e, uuid, sizeof(uuid)))
1203 return;
1204 wpa_printf(MSG_DEBUG, "WPS: PIN needed for UUID-E %s", uuid);
1205 len = os_snprintf(txt, sizeof(txt), "WPS-EVENT-PIN-NEEDED %s " MACSTR
96750ea5 1206 " [%s|%s|%s|%s|%s|%s]",
c5adf528
JM		 1207 uuid, MAC2STR(dev->mac_addr), dev->device_name,
1208 dev->manufacturer, dev->model_name,
1209 dev->model_number, dev->serial_number,
96750ea5
JM		 1210 wps_dev_type_bin2str(dev->pri_dev_type, devtype,
1211 sizeof(devtype)));
c5adf528
JM		 1212 if (len > 0 && len < (int) sizeof(txt))
1213 wpa_printf(MSG_INFO, "%s", txt);
1214}
1215
1216
72df2f5f
JM		 1217static void wpas_wps_set_sel_reg_cb(void *ctx, int sel_reg, u16 dev_passwd_id,
1218 u16 sel_reg_config_methods)
1219{
1220#ifdef CONFIG_WPS_ER
1221 struct wpa_supplicant *wpa_s = ctx;
1222
1223 if (wpa_s->wps_er == NULL)
1224 return;
ad474118
JM		 1225 wpa_printf(MSG_DEBUG, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1226 "dev_password_id=%u sel_reg_config_methods=0x%x",
1227 sel_reg, dev_passwd_id, sel_reg_config_methods);
72df2f5f
JM		 1228 wps_er_set_sel_reg(wpa_s->wps_er, sel_reg, dev_passwd_id,
1229 sel_reg_config_methods);
1230#endif /* CONFIG_WPS_ER */
1231}
1232
1233
092acb54
JM		 1234static u16 wps_fix_config_methods(u16 config_methods)
1235{
1236#ifdef CONFIG_WPS2
1237 if ((config_methods &
1238 (WPS_CONFIG_DISPLAY | WPS_CONFIG_VIRT_DISPLAY |
1239 WPS_CONFIG_PHY_DISPLAY)) == WPS_CONFIG_DISPLAY) {
1240 wpa_printf(MSG_INFO, "WPS: Converting display to "
1241 "virtual_display for WPS 2.0 compliance");
1242 config_methods |= WPS_CONFIG_VIRT_DISPLAY;
1243 }
1244 if ((config_methods &
1245 (WPS_CONFIG_PUSHBUTTON | WPS_CONFIG_VIRT_PUSHBUTTON |
1246 WPS_CONFIG_PHY_PUSHBUTTON)) == WPS_CONFIG_PUSHBUTTON) {
1247 wpa_printf(MSG_INFO, "WPS: Converting push_button to "
1248 "virtual_push_button for WPS 2.0 compliance");
1249 config_methods |= WPS_CONFIG_VIRT_PUSHBUTTON;
1250 }
1251#endif /* CONFIG_WPS2 */
1252
1253 return config_methods;
1254}
1255
1256
85a821d6
JM		 1257static void wpas_wps_set_uuid(struct wpa_supplicant *wpa_s,
1258 struct wps_context *wps)
1259{
1260 wpa_printf(MSG_DEBUG, "WPS: Set UUID for interface %s", wpa_s->ifname);
1261 if (is_nil_uuid(wpa_s->conf->uuid)) {
1262 struct wpa_supplicant *first;
1263 first = wpa_s->global->ifaces;
1264 while (first && first->next)
1265 first = first->next;
1266 if (first && first != wpa_s) {
157cdad5
BG		 1267 if (wps != wpa_s->global->ifaces->wps)
1268 os_memcpy(wps->uuid,
1269 wpa_s->global->ifaces->wps->uuid,
1270 WPS_UUID_LEN);
85a821d6
JM		 1271 wpa_hexdump(MSG_DEBUG, "WPS: UUID from the first "
1272 "interface", wps->uuid, WPS_UUID_LEN);
1273 } else {
1274 uuid_gen_mac_addr(wpa_s->own_addr, wps->uuid);
1275 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on MAC "
1276 "address", wps->uuid, WPS_UUID_LEN);
1277 }
1278 } else {
1279 os_memcpy(wps->uuid, wpa_s->conf->uuid, WPS_UUID_LEN);
1280 wpa_hexdump(MSG_DEBUG, "WPS: UUID based on configuration",
1281 wps->uuid, WPS_UUID_LEN);
1282 }
1283}
1284
1285
71dd3b78
AS		 1286static void wpas_wps_set_vendor_ext_m1(struct wpa_supplicant *wpa_s,
1287 struct wps_context *wps)
1288{
1289 wpabuf_free(wps->dev.vendor_ext_m1);
1290 wps->dev.vendor_ext_m1 = NULL;
1291
1292 if (wpa_s->conf->wps_vendor_ext_m1) {
1293 wps->dev.vendor_ext_m1 =
1294 wpabuf_dup(wpa_s->conf->wps_vendor_ext_m1);
1295 if (!wps->dev.vendor_ext_m1) {
1296 wpa_printf(MSG_ERROR, "WPS: Cannot "
1297 "allocate memory for vendor_ext_m1");
1298 }
1299 }
1300}
1301
1302
116654ce
JM		 1303int wpas_wps_init(struct wpa_supplicant *wpa_s)
1304{
1305 struct wps_context *wps;
c5adf528 1306 struct wps_registrar_config rcfg;
6fb6d842 1307 struct hostapd_hw_modes *modes;
6bf731e8 1308 u16 m;
116654ce
JM		 1309
1310 wps = os_zalloc(sizeof(*wps));
1311 if (wps == NULL)
1312 return -1;
1313
1314 wps->cred_cb = wpa_supplicant_wps_cred;
4b68290e 1315 wps->event_cb = wpa_supplicant_wps_event;
116654ce
JM		 1316 wps->cb_ctx = wpa_s;
1317
3c0b7aa4
JM		 1318 wps->dev.device_name = wpa_s->conf->device_name;
1319 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1320 wps->dev.model_name = wpa_s->conf->model_name;
1321 wps->dev.model_number = wpa_s->conf->model_number;
1322 wps->dev.serial_number = wpa_s->conf->serial_number;
c0e4dd9e
JM		 1323 wps->config_methods =
1324 wps_config_methods_str2bin(wpa_s->conf->config_methods);
979b988e
JM		 1325 if ((wps->config_methods & (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1326 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1327 wpa_printf(MSG_ERROR, "WPS: Both Label and Display config "
1328 "methods are not allowed at the same time");
1329 os_free(wps);
1330 return -1;
1331 }
092acb54 1332 wps->config_methods = wps_fix_config_methods(wps->config_methods);
a9355fac 1333 wps->dev.config_methods = wps->config_methods;
2f646b6e
JB		 1334 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1335 WPS_DEV_TYPE_LEN);
a9e86bfb 1336
2f646b6e
JB		 1337 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1338 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1339 WPS_DEV_TYPE_LEN * wps->dev.num_sec_dev_types);
a9e86bfb 1340
71dd3b78
AS		 1341 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1342
3c0b7aa4 1343 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
6bf731e8 1344 modes = wpa_s->hw.modes;
6fb6d842 1345 if (modes) {
6bf731e8 1346 for (m = 0; m < wpa_s->hw.num_modes; m++) {
6fb6d842
BC		 1347 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B ||
1348 modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1349 wps->dev.rf_bands |= WPS_RF_24GHZ;
1350 else if (modes[m].mode == HOSTAPD_MODE_IEEE80211A)
1351 wps->dev.rf_bands |= WPS_RF_50GHZ;
1352 }
6fb6d842
BC		 1353 }
1354 if (wps->dev.rf_bands == 0) {
1355 /*
1356 * Default to claiming support for both bands if the driver
1357 * does not provide support for fetching supported bands.
1358 */
1359 wps->dev.rf_bands = WPS_RF_24GHZ | WPS_RF_50GHZ;
1360 }
398cfbf6 1361 os_memcpy(wps->dev.mac_addr, wpa_s->own_addr, ETH_ALEN);
85a821d6 1362 wpas_wps_set_uuid(wpa_s, wps);
116654ce 1363
c5adf528
JM		 1364 wps->auth_types = WPS_AUTH_WPA2PSK | WPS_AUTH_WPAPSK;
1365 wps->encr_types = WPS_ENCR_AES | WPS_ENCR_TKIP;
1366
1367 os_memset(&rcfg, 0, sizeof(rcfg));
1368 rcfg.new_psk_cb = wpas_wps_new_psk_cb;
1369 rcfg.pin_needed_cb = wpas_wps_pin_needed_cb;
72df2f5f 1370 rcfg.set_sel_reg_cb = wpas_wps_set_sel_reg_cb;
c5adf528
JM		 1371 rcfg.cb_ctx = wpa_s;
1372
1373 wps->registrar = wps_registrar_init(wps, &rcfg);
1374 if (wps->registrar == NULL) {
1375 wpa_printf(MSG_DEBUG, "Failed to initialize WPS Registrar");
1376 os_free(wps);
1377 return -1;
1378 }
1379
116654ce
JM		 1380 wpa_s->wps = wps;
1381
1382 return 0;
1383}
1384
1385
1386void wpas_wps_deinit(struct wpa_supplicant *wpa_s)
1387{
fcc60db4 1388 eloop_cancel_timeout(wpas_wps_timeout, wpa_s, NULL);
ec947ffc 1389 eloop_cancel_timeout(wpas_wps_reenable_networks_cb, wpa_s, NULL);
f9f0526b 1390 wpas_wps_clear_ap_info(wpa_s);
fcc60db4 1391
116654ce
JM		 1392 if (wpa_s->wps == NULL)
1393 return;
1394
a6b63078 1395#ifdef CONFIG_WPS_ER
1a1bf008 1396 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
a6b63078
JM		 1397 wpa_s->wps_er = NULL;
1398#endif /* CONFIG_WPS_ER */
1399
c5adf528 1400 wps_registrar_deinit(wpa_s->wps->registrar);
46bdb83a
MH		 1401 wpabuf_free(wpa_s->wps->dh_pubkey);
1402 wpabuf_free(wpa_s->wps->dh_privkey);
71dd3b78 1403 wpabuf_free(wpa_s->wps->dev.vendor_ext_m1);
116654ce
JM		 1404 os_free(wpa_s->wps->network_key);
1405 os_free(wpa_s->wps);
1406 wpa_s->wps = NULL;
1407}
351f09a2
JM		 1408
1409
a6099152 1410int wpas_wps_ssid_bss_match(struct wpa_supplicant *wpa_s,
620c7837 1411 struct wpa_ssid *ssid, struct wpa_bss *bss)
351f09a2
JM		 1412{
1413 struct wpabuf *wps_ie;
1414
1415 if (!(ssid->key_mgmt & WPA_KEY_MGMT_WPS))
1416 return -1;
1417
620c7837 1418 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
351f09a2
JM		 1419 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
1420 if (!wps_ie) {
1421 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1422 return 0;
1423 }
1424
1425 if (!wps_is_selected_pbc_registrar(wps_ie)) {
1426 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1427 "without active PBC Registrar");
1428 wpabuf_free(wps_ie);
1429 return 0;
1430 }
1431
1432 /* TODO: overlap detection */
1433 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
1434 "(Active PBC)");
1435 wpabuf_free(wps_ie);
1436 return 1;
1437 }
1438
1439 if (eap_is_wps_pin_enrollee(&ssid->eap)) {
1440 if (!wps_ie) {
1441 wpa_printf(MSG_DEBUG, " skip - non-WPS AP");
1442 return 0;
1443 }
1444
a6099152 1445 /*
31fcea93
JM		 1446 * Start with WPS APs that advertise our address as an
1447 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1448 * allow any WPS AP after couple of scans since some APs do not
1449 * set Selected Registrar attribute properly when using
1450 * external Registrar.
a6099152 1451 */
31fcea93 1452 if (!wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1)) {
a6099152
JM		 1453 if (wpa_s->scan_runs < WPS_PIN_SCAN_IGNORE_SEL_REG) {
1454 wpa_printf(MSG_DEBUG, " skip - WPS AP "
1455 "without active PIN Registrar");
1456 wpabuf_free(wps_ie);
1457 return 0;
1458 }
1459 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1460 } else {
1461 wpa_printf(MSG_DEBUG, " selected based on WPS IE "
31fcea93 1462 "(Authorized MAC or Active PIN)");
351f09a2 1463 }
351f09a2
JM		 1464 wpabuf_free(wps_ie);
1465 return 1;
1466 }
1467
1468 if (wps_ie) {
1469 wpa_printf(MSG_DEBUG, " selected based on WPS IE");
1470 wpabuf_free(wps_ie);
1471 return 1;
1472 }
1473
1474 return -1;
1475}
1476
1477
a6099152
JM		 1478int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant *wpa_s,
1479 struct wpa_ssid *ssid,
620c7837 1480 struct wpa_bss *bss)
351f09a2
JM		 1481{
1482 struct wpabuf *wps_ie = NULL;
1483 int ret = 0;
1484
1485 if (eap_is_wps_pbc_enrollee(&ssid->eap)) {
620c7837 1486 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
351f09a2
JM		 1487 if (wps_ie && wps_is_selected_pbc_registrar(wps_ie)) {
1488 /* allow wildcard SSID for WPS PBC */
1489 ret = 1;
1490 }
1491 } else if (eap_is_wps_pin_enrollee(&ssid->eap)) {
620c7837 1492 wps_ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
a6099152 1493 if (wps_ie &&
31fcea93 1494 (wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1) ||
a6099152 1495 wpa_s->scan_runs >= WPS_PIN_SCAN_IGNORE_SEL_REG)) {
351f09a2
JM		 1496 /* allow wildcard SSID for WPS PIN */
1497 ret = 1;
1498 }
1499 }
1500
24c23d1b
JM		 1501 if (!ret && ssid->bssid_set &&
1502 os_memcmp(ssid->bssid, bss->bssid, ETH_ALEN) == 0) {
1503 /* allow wildcard SSID due to hardcoded BSSID match */
1504 ret = 1;
1505 }
1506
54f489be
JM		 1507#ifdef CONFIG_WPS_STRICT
1508 if (wps_ie) {
1509 if (wps_validate_beacon_probe_resp(wps_ie, bss->beacon_ie_len >
ff28ccaf 1510 0, bss->bssid) < 0)
54f489be
JM		 1511 ret = 0;
1512 if (bss->beacon_ie_len) {
1513 struct wpabuf *bcn_wps;
620c7837 1514 bcn_wps = wpa_bss_get_vendor_ie_multi_beacon(
54f489be
JM		 1515 bss, WPS_IE_VENDOR_TYPE);
1516 if (bcn_wps == NULL) {
1517 wpa_printf(MSG_DEBUG, "WPS: Mandatory WPS IE "
1518 "missing from AP Beacon");
1519 ret = 0;
1520 } else {
1521 if (wps_validate_beacon(wps_ie) < 0)
1522 ret = 0;
1523 wpabuf_free(bcn_wps);
1524 }
1525 }
1526 }
1527#endif /* CONFIG_WPS_STRICT */
1528
351f09a2
JM		 1529 wpabuf_free(wps_ie);
1530
1531 return ret;
1532}
1533
1534
1535int wpas_wps_scan_pbc_overlap(struct wpa_supplicant *wpa_s,
6fa81a3b 1536 struct wpa_bss *selected, struct wpa_ssid *ssid)
351f09a2
JM		 1537{
1538 const u8 *sel_uuid, *uuid;
351f09a2
JM		 1539 struct wpabuf *wps_ie;
1540 int ret = 0;
6fa81a3b 1541 struct wpa_bss *bss;
351f09a2
JM		 1542
1543 if (!eap_is_wps_pbc_enrollee(&ssid->eap))
1544 return 0;
1545
9647120b
JM		 1546 wpa_printf(MSG_DEBUG, "WPS: Check whether PBC session overlap is "
1547 "present in scan results; selected BSSID " MACSTR,
1548 MAC2STR(selected->bssid));
1549
351f09a2 1550 /* Make sure that only one AP is in active PBC mode */
6fa81a3b 1551 wps_ie = wpa_bss_get_vendor_ie_multi(selected, WPS_IE_VENDOR_TYPE);
9647120b 1552 if (wps_ie) {
351f09a2 1553 sel_uuid = wps_get_uuid_e(wps_ie);
9647120b
JM		 1554 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the selected BSS",
1555 sel_uuid, UUID_LEN);
1556 } else {
1557 wpa_printf(MSG_DEBUG, "WPS: Selected BSS does not include "
1558 "WPS IE?!");
351f09a2 1559 sel_uuid = NULL;
9647120b 1560 }
351f09a2 1561
6fa81a3b 1562 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
351f09a2
JM		 1563 struct wpabuf *ie;
1564 if (bss == selected)
1565 continue;
6fa81a3b 1566 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
351f09a2
JM		 1567 if (!ie)
1568 continue;
1569 if (!wps_is_selected_pbc_registrar(ie)) {
1570 wpabuf_free(ie);
1571 continue;
1572 }
9647120b
JM		 1573 wpa_printf(MSG_DEBUG, "WPS: Another BSS in active PBC mode: "
1574 MACSTR, MAC2STR(bss->bssid));
351f09a2 1575 uuid = wps_get_uuid_e(ie);
9647120b
JM		 1576 wpa_hexdump(MSG_DEBUG, "WPS: UUID of the other BSS",
1577 uuid, UUID_LEN);
44cd430f 1578 if (sel_uuid == NULL || uuid == NULL ||
9647120b 1579 os_memcmp(sel_uuid, uuid, UUID_LEN) != 0) {
351f09a2 1580 ret = 1; /* PBC overlap */
9647120b
JM		 1581 wpa_msg(wpa_s, MSG_INFO, "WPS: PBC overlap detected: "
1582 MACSTR " and " MACSTR,
1583 MAC2STR(selected->bssid),
1584 MAC2STR(bss->bssid));
351f09a2
JM		 1585 wpabuf_free(ie);
1586 break;
1587 }
1588
1589 /* TODO: verify that this is reasonable dual-band situation */
484957ae
JM		 1590
1591 wpabuf_free(ie);
351f09a2
JM		 1592 }
1593
1594 wpabuf_free(wps_ie);
1595
1596 return ret;
1597}
a524f05e
JM		 1598
1599
1600void wpas_wps_notify_scan_results(struct wpa_supplicant *wpa_s)
1601{
6fa81a3b 1602 struct wpa_bss *bss;
6c6ad81f 1603 unsigned int pbc = 0, auth = 0, pin = 0, wps = 0;
a524f05e
JM		 1604
1605 if (wpa_s->disconnected || wpa_s->wpa_state >= WPA_ASSOCIATED)
1606 return;
1607
6fa81a3b 1608 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
a524f05e 1609 struct wpabuf *ie;
6fa81a3b 1610 ie = wpa_bss_get_vendor_ie_multi(bss, WPS_IE_VENDOR_TYPE);
a524f05e
JM		 1611 if (!ie)
1612 continue;
1613 if (wps_is_selected_pbc_registrar(ie))
6c6ad81f 1614 pbc++;
31fcea93 1615 else if (wps_is_addr_authorized(ie, wpa_s->own_addr, 0))
6c6ad81f 1616 auth++;
a524f05e 1617 else if (wps_is_selected_pin_registrar(ie))
6c6ad81f 1618 pin++;
a524f05e 1619 else
6c6ad81f 1620 wps++;
a524f05e 1621 wpabuf_free(ie);
a524f05e 1622 }
6c6ad81f
JM		 1623
1624 if (pbc)
1625 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PBC);
1626 else if (auth)
1627 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_AUTH);
1628 else if (pin)
1629 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE_PIN);
1630 else if (wps)
1631 wpa_msg_ctrl(wpa_s, MSG_INFO, WPS_EVENT_AP_AVAILABLE);
a524f05e 1632}
24c23d1b
JM		 1633
1634
1635int wpas_wps_searching(struct wpa_supplicant *wpa_s)
1636{
1637 struct wpa_ssid *ssid;
1638
1639 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1640 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && !ssid->disabled)
1641 return 1;
1642 }
1643
1644 return 0;
1645}
611ed491
JM		 1646
1647
1648int wpas_wps_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
1649 char *end)
1650{
1651 struct wpabuf *wps_ie;
1652 int ret;
1653
1654 wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len, WPS_DEV_OUI_WFA);
1655 if (wps_ie == NULL)
1656 return 0;
1657
1658 ret = wps_attr_text(wps_ie, buf, end);
1659 wpabuf_free(wps_ie);
1660 return ret;
1661}
e9bcfebf
JM		 1662
1663
08486685 1664int wpas_wps_er_start(struct wpa_supplicant *wpa_s, const char *filter)
e9bcfebf
JM		 1665{
1666#ifdef CONFIG_WPS_ER
1667 if (wpa_s->wps_er) {
b3f371ca 1668 wps_er_refresh(wpa_s->wps_er);
e9bcfebf
JM		 1669 return 0;
1670 }
08486685 1671 wpa_s->wps_er = wps_er_init(wpa_s->wps, wpa_s->ifname, filter);
e9bcfebf
JM		 1672 if (wpa_s->wps_er == NULL)
1673 return -1;
1674 return 0;
1675#else /* CONFIG_WPS_ER */
1676 return 0;
1677#endif /* CONFIG_WPS_ER */
1678}
1679
1680
1681int wpas_wps_er_stop(struct wpa_supplicant *wpa_s)
1682{
1683#ifdef CONFIG_WPS_ER
1a1bf008 1684 wps_er_deinit(wpa_s->wps_er, NULL, NULL);
e9bcfebf
JM		 1685 wpa_s->wps_er = NULL;
1686#endif /* CONFIG_WPS_ER */
1687 return 0;
1688}
72df2f5f
JM		 1689
1690
1691#ifdef CONFIG_WPS_ER
31fcea93
JM		 1692int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
1693 const char *uuid, const char *pin)
72df2f5f
JM		 1694{
1695 u8 u[UUID_LEN];
e205401c
JM		 1696 const u8 *use_uuid = NULL;
1697 u8 addr_buf[ETH_ALEN];
72df2f5f 1698
e205401c
JM		 1699 if (os_strcmp(uuid, "any") == 0) {
1700 } else if (uuid_str2bin(uuid, u) == 0) {
1701 use_uuid = u;
1702 } else if (hwaddr_aton(uuid, addr_buf) == 0) {
1703 use_uuid = wps_er_get_sta_uuid(wpa_s->wps_er, addr_buf);
1704 if (use_uuid == NULL)
1705 return -1;
1706 } else
72df2f5f 1707 return -1;
31fcea93 1708 return wps_registrar_add_pin(wpa_s->wps->registrar, addr,
e205401c 1709 use_uuid,
72df2f5f
JM		 1710 (const u8 *) pin, os_strlen(pin), 300);
1711}
564cd7fa
JM		 1712
1713
1714int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid)
1715{
e205401c
JM		 1716 u8 u[UUID_LEN], *use_uuid = NULL;
1717 u8 addr[ETH_ALEN], *use_addr = NULL;
564cd7fa 1718
e205401c
JM		 1719 if (uuid_str2bin(uuid, u) == 0)
1720 use_uuid = u;
1721 else if (hwaddr_aton(uuid, addr) == 0)
1722 use_addr = addr;
1723 else
564cd7fa 1724 return -1;
e205401c 1725 return wps_er_pbc(wpa_s->wps_er, use_uuid, use_addr);
564cd7fa 1726}
e64dcfd5
JM		 1727
1728
1729int wpas_wps_er_learn(struct wpa_supplicant *wpa_s, const char *uuid,
1730 const char *pin)
1731{
59307b30
JM		 1732 u8 u[UUID_LEN], *use_uuid = NULL;
1733 u8 addr[ETH_ALEN], *use_addr = NULL;
e64dcfd5 1734
59307b30
JM		 1735 if (uuid_str2bin(uuid, u) == 0)
1736 use_uuid = u;
1737 else if (hwaddr_aton(uuid, addr) == 0)
1738 use_addr = addr;
1739 else
e64dcfd5 1740 return -1;
59307b30
JM		 1741
1742 return wps_er_learn(wpa_s->wps_er, use_uuid, use_addr, (const u8 *) pin,
e64dcfd5
JM		 1743 os_strlen(pin));
1744}
1a1bf008
JM		 1745
1746
88c8bf31
JM		 1747static int wpas_wps_network_to_cred(struct wpa_ssid *ssid,
1748 struct wps_credential *cred)
1749{
1750 os_memset(cred, 0, sizeof(*cred));
1751 if (ssid->ssid_len > 32)
1752 return -1;
1753 os_memcpy(cred->ssid, ssid->ssid, ssid->ssid_len);
1754 cred->ssid_len = ssid->ssid_len;
1755 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
1756 cred->auth_type = (ssid->proto & WPA_PROTO_RSN) ?
1757 WPS_AUTH_WPA2PSK : WPS_AUTH_WPAPSK;
1758 if (ssid->pairwise_cipher & WPA_CIPHER_CCMP)
1759 cred->encr_type = WPS_ENCR_AES;
1760 else
1761 cred->encr_type = WPS_ENCR_TKIP;
1762 if (ssid->passphrase) {
1763 cred->key_len = os_strlen(ssid->passphrase);
1764 if (cred->key_len >= 64)
1765 return -1;
1766 os_memcpy(cred->key, ssid->passphrase, cred->key_len);
1767 } else if (ssid->psk_set) {
1768 cred->key_len = 32;
1769 os_memcpy(cred->key, ssid->psk, 32);
1770 } else
1771 return -1;
1772 } else {
1773 cred->auth_type = WPS_AUTH_OPEN;
1774 cred->encr_type = WPS_ENCR_NONE;
1775 }
1776
1777 return 0;
1778}
1779
1780
ef10f473
JM		 1781int wpas_wps_er_set_config(struct wpa_supplicant *wpa_s, const char *uuid,
1782 int id)
1783{
59307b30
JM		 1784 u8 u[UUID_LEN], *use_uuid = NULL;
1785 u8 addr[ETH_ALEN], *use_addr = NULL;
ef10f473
JM		 1786 struct wpa_ssid *ssid;
1787 struct wps_credential cred;
1788
59307b30
JM		 1789 if (uuid_str2bin(uuid, u) == 0)
1790 use_uuid = u;
1791 else if (hwaddr_aton(uuid, addr) == 0)
1792 use_addr = addr;
1793 else
ef10f473
JM		 1794 return -1;
1795 ssid = wpa_config_get_network(wpa_s->conf, id);
1796 if (ssid == NULL || ssid->ssid == NULL)
1797 return -1;
1798
88c8bf31 1799 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
ef10f473 1800 return -1;
59307b30 1801 return wps_er_set_config(wpa_s->wps_er, use_uuid, use_addr, &cred);
ef10f473
JM		 1802}
1803
1804
7d6640a6
JM		 1805int wpas_wps_er_config(struct wpa_supplicant *wpa_s, const char *uuid,
1806 const char *pin, struct wps_new_ap_settings *settings)
1807{
59307b30
JM		 1808 u8 u[UUID_LEN], *use_uuid = NULL;
1809 u8 addr[ETH_ALEN], *use_addr = NULL;
7d6640a6
JM		 1810 struct wps_credential cred;
1811 size_t len;
1812
59307b30
JM		 1813 if (uuid_str2bin(uuid, u) == 0)
1814 use_uuid = u;
1815 else if (hwaddr_aton(uuid, addr) == 0)
1816 use_addr = addr;
1817 else
7d6640a6
JM		 1818 return -1;
1819 if (settings->ssid_hex == NULL || settings->auth == NULL ||
1820 settings->encr == NULL || settings->key_hex == NULL)
1821 return -1;
1822
1823 os_memset(&cred, 0, sizeof(cred));
1824 len = os_strlen(settings->ssid_hex);
1825 if ((len & 1) || len > 2 * sizeof(cred.ssid) ||
1826 hexstr2bin(settings->ssid_hex, cred.ssid, len / 2))
1827 return -1;
1828 cred.ssid_len = len / 2;
1829
1830 len = os_strlen(settings->key_hex);
1831 if ((len & 1) || len > 2 * sizeof(cred.key) ||
1832 hexstr2bin(settings->key_hex, cred.key, len / 2))
1833 return -1;
1834 cred.key_len = len / 2;
1835
1836 if (os_strcmp(settings->auth, "OPEN") == 0)
1837 cred.auth_type = WPS_AUTH_OPEN;
1838 else if (os_strcmp(settings->auth, "WPAPSK") == 0)
1839 cred.auth_type = WPS_AUTH_WPAPSK;
1840 else if (os_strcmp(settings->auth, "WPA2PSK") == 0)
1841 cred.auth_type = WPS_AUTH_WPA2PSK;
1842 else
1843 return -1;
1844
1845 if (os_strcmp(settings->encr, "NONE") == 0)
1846 cred.encr_type = WPS_ENCR_NONE;
1847 else if (os_strcmp(settings->encr, "WEP") == 0)
1848 cred.encr_type = WPS_ENCR_WEP;
1849 else if (os_strcmp(settings->encr, "TKIP") == 0)
1850 cred.encr_type = WPS_ENCR_TKIP;
1851 else if (os_strcmp(settings->encr, "CCMP") == 0)
1852 cred.encr_type = WPS_ENCR_AES;
1853 else
1854 return -1;
1855
59307b30
JM		 1856 return wps_er_config(wpa_s->wps_er, use_uuid, use_addr,
1857 (const u8 *) pin, os_strlen(pin), &cred);
7d6640a6
JM		 1858}
1859
1860
1cea09a9
JM		 1861#ifdef CONFIG_WPS_NFC
1862struct wpabuf * wpas_wps_er_nfc_config_token(struct wpa_supplicant *wpa_s,
1863 int ndef, const char *uuid)
1864{
1865 struct wpabuf *ret;
59307b30
JM		 1866 u8 u[UUID_LEN], *use_uuid = NULL;
1867 u8 addr[ETH_ALEN], *use_addr = NULL;
1cea09a9
JM		 1868
1869 if (!wpa_s->wps_er)
1870 return NULL;
1871
59307b30
JM		 1872 if (uuid_str2bin(uuid, u) == 0)
1873 use_uuid = u;
1874 else if (hwaddr_aton(uuid, addr) == 0)
1875 use_addr = addr;
1876 else
1cea09a9
JM		 1877 return NULL;
1878
59307b30 1879 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
1cea09a9
JM		 1880 if (ndef && ret) {
1881 struct wpabuf *tmp;
1882 tmp = ndef_build_wifi(ret);
1883 wpabuf_free(ret);
1884 if (tmp == NULL)
1885 return NULL;
1886 ret = tmp;
1887 }
1888
1889 return ret;
1890}
1891#endif /* CONFIG_WPS_NFC */
1892
1893
4c9695be
BG		 1894static int callbacks_pending = 0;
1895
1a1bf008
JM		 1896static void wpas_wps_terminate_cb(void *ctx)
1897{
1898 wpa_printf(MSG_DEBUG, "WPS ER: Terminated");
4c9695be
BG		 1899 if (--callbacks_pending <= 0)
1900 eloop_terminate();
1a1bf008
JM		 1901}
1902#endif /* CONFIG_WPS_ER */
1903
1904
1905int wpas_wps_terminate_pending(struct wpa_supplicant *wpa_s)
1906{
1907#ifdef CONFIG_WPS_ER
1908 if (wpa_s->wps_er) {
4c9695be 1909 callbacks_pending++;
1a1bf008
JM		 1910 wps_er_deinit(wpa_s->wps_er, wpas_wps_terminate_cb, wpa_s);
1911 wpa_s->wps_er = NULL;
1912 return 1;
1913 }
72df2f5f 1914#endif /* CONFIG_WPS_ER */
1a1bf008
JM		 1915 return 0;
1916}
41e650ae
JM		 1917
1918
1919int wpas_wps_in_progress(struct wpa_supplicant *wpa_s)
1920{
1921 struct wpa_ssid *ssid;
1922
1923 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1924 if (!ssid->disabled && ssid->key_mgmt == WPA_KEY_MGMT_WPS)
1925 return 1;
1926 }
1927
1928 return 0;
1929}
611aea7d
JM		 1930
1931
1932void wpas_wps_update_config(struct wpa_supplicant *wpa_s)
1933{
1934 struct wps_context *wps = wpa_s->wps;
1935
1936 if (wps == NULL)
1937 return;
1938
1939 if (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS) {
1940 wps->config_methods = wps_config_methods_str2bin(
1941 wpa_s->conf->config_methods);
1942 if ((wps->config_methods &
1943 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) ==
1944 (WPS_CONFIG_DISPLAY | WPS_CONFIG_LABEL)) {
1945 wpa_printf(MSG_ERROR, "WPS: Both Label and Display "
1946 "config methods are not allowed at the "
1947 "same time");
1948 wps->config_methods &= ~WPS_CONFIG_LABEL;
1949 }
1950 }
092acb54 1951 wps->config_methods = wps_fix_config_methods(wps->config_methods);
c8b245b6 1952 wps->dev.config_methods = wps->config_methods;
611aea7d 1953
2f646b6e
JB		 1954 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
1955 os_memcpy(wps->dev.pri_dev_type, wpa_s->conf->device_type,
1956 WPS_DEV_TYPE_LEN);
611aea7d 1957
a9e86bfb 1958 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
2f646b6e
JB		 1959 wps->dev.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
1960 os_memcpy(wps->dev.sec_dev_type, wpa_s->conf->sec_device_type,
1961 wps->dev.num_sec_dev_types * WPS_DEV_TYPE_LEN);
a9e86bfb
JMB		 1962 }
1963
71dd3b78
AS		 1964 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION)
1965 wpas_wps_set_vendor_ext_m1(wpa_s, wps);
1966
611aea7d
JM		 1967 if (wpa_s->conf->changed_parameters & CFG_CHANGED_OS_VERSION)
1968 wps->dev.os_version = WPA_GET_BE32(wpa_s->conf->os_version);
1969
85a821d6
JM		 1970 if (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID)
1971 wpas_wps_set_uuid(wpa_s, wps);
dcf788d1 1972
1c9cb49f
JM		 1973 if (wpa_s->conf->changed_parameters &
1974 (CFG_CHANGED_DEVICE_NAME | CFG_CHANGED_WPS_STRING)) {
dcf788d1
JM		 1975 /* Update pointers to make sure they refer current values */
1976 wps->dev.device_name = wpa_s->conf->device_name;
1977 wps->dev.manufacturer = wpa_s->conf->manufacturer;
1978 wps->dev.model_name = wpa_s->conf->model_name;
1979 wps->dev.model_number = wpa_s->conf->model_number;
1980 wps->dev.serial_number = wpa_s->conf->serial_number;
1981 }
611aea7d 1982}
3f2c8ba6
JM		 1983
1984
1985#ifdef CONFIG_WPS_NFC
1986
88c8bf31
JM		 1987#ifdef CONFIG_WPS_ER
1988static struct wpabuf *
1989wpas_wps_network_config_token(struct wpa_supplicant *wpa_s, int ndef,
1990 struct wpa_ssid *ssid)
1991{
1992 struct wpabuf *ret;
1993 struct wps_credential cred;
1994
1995 if (wpas_wps_network_to_cred(ssid, &cred) < 0)
1996 return NULL;
1997
1998 ret = wps_er_config_token_from_cred(wpa_s->wps, &cred);
1999
2000 if (ndef && ret) {
2001 struct wpabuf *tmp;
2002 tmp = ndef_build_wifi(ret);
2003 wpabuf_free(ret);
2004 if (tmp == NULL)
2005 return NULL;
2006 ret = tmp;
2007 }
2008
2009 return ret;
2010}
2011#endif /* CONFIG_WPS_ER */
2012
2013
bbf41865 2014struct wpabuf * wpas_wps_nfc_config_token(struct wpa_supplicant *wpa_s,
88c8bf31 2015 int ndef, const char *id_str)
bbf41865 2016{
88c8bf31
JM		 2017#ifdef CONFIG_WPS_ER
2018 if (id_str) {
2019 int id;
2020 char *end = NULL;
2021 struct wpa_ssid *ssid;
2022
2023 id = strtol(id_str, &end, 10);
2024 if (end && *end)
2025 return NULL;
2026
2027 ssid = wpa_config_get_network(wpa_s->conf, id);
2028 if (ssid == NULL)
2029 return NULL;
2030 return wpas_wps_network_config_token(wpa_s, ndef, ssid);
2031 }
2032#endif /* CONFIG_WPS_ER */
bbf41865
JM		 2033#ifdef CONFIG_AP
2034 if (wpa_s->ap_iface)
2035 return wpas_ap_wps_nfc_config_token(wpa_s, ndef);
2036#endif /* CONFIG_AP */
2037 return NULL;
2038}
2039
2040
3f2c8ba6
JM		 2041struct wpabuf * wpas_wps_nfc_token(struct wpa_supplicant *wpa_s, int ndef)
2042{
042ec551
JM		 2043 if (wpa_s->conf->wps_nfc_pw_from_config) {
2044 return wps_nfc_token_build(ndef,
2045 wpa_s->conf->wps_nfc_dev_pw_id,
2046 wpa_s->conf->wps_nfc_dh_pubkey,
2047 wpa_s->conf->wps_nfc_dev_pw);
2048 }
2049
bfc62fe1
JM		 2050 return wps_nfc_token_gen(ndef, &wpa_s->conf->wps_nfc_dev_pw_id,
2051 &wpa_s->conf->wps_nfc_dh_pubkey,
2052 &wpa_s->conf->wps_nfc_dh_privkey,
2053 &wpa_s->conf->wps_nfc_dev_pw);
3f2c8ba6
JM		 2054}
2055
2056
2057int wpas_wps_start_nfc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2058{
2059 struct wps_context *wps = wpa_s->wps;
2060 char pw[32 * 2 + 1];
2061
2062 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
2063 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
2064 wpa_s->conf->wps_nfc_dev_pw == NULL)
2065 return -1;
2066
2067 dh5_free(wps->dh_ctx);
2068 wpabuf_free(wps->dh_pubkey);
2069 wpabuf_free(wps->dh_privkey);
2070 wps->dh_privkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
2071 wps->dh_pubkey = wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
2072 if (wps->dh_privkey == NULL || wps->dh_pubkey == NULL) {
2073 wps->dh_ctx = NULL;
2074 wpabuf_free(wps->dh_pubkey);
2075 wps->dh_pubkey = NULL;
2076 wpabuf_free(wps->dh_privkey);
2077 wps->dh_privkey = NULL;
2078 return -1;
2079 }
2080 wps->dh_ctx = dh5_init_fixed(wps->dh_privkey, wps->dh_pubkey);
5c9d63d4
JM		 2081 if (wps->dh_ctx == NULL) {
2082 wpabuf_free(wps->dh_pubkey);
2083 wps->dh_pubkey = NULL;
2084 wpabuf_free(wps->dh_privkey);
2085 wps->dh_privkey = NULL;
3f2c8ba6 2086 return -1;
5c9d63d4 2087 }
3f2c8ba6
JM		 2088
2089 wpa_snprintf_hex_uppercase(pw, sizeof(pw),
2090 wpabuf_head(wpa_s->conf->wps_nfc_dev_pw),
2091 wpabuf_len(wpa_s->conf->wps_nfc_dev_pw));
2092 return wpas_wps_start_pin(wpa_s, bssid, pw, 0,
2093 wpa_s->conf->wps_nfc_dev_pw_id);
2094}
2095
d7645d23
JM		 2096
2097static int wpas_wps_use_cred(struct wpa_supplicant *wpa_s,
2098 struct wps_parse_attr *attr)
2099{
bd3a3737
JM		 2100 wpa_s->wps_ap_channel = 0;
2101
170f5663
JM		 2102 /*
2103 * Disable existing networks temporarily to allow the newly learned
2104 * credential to be preferred. Enable the temporarily disabled networks
2105 * after 10 seconds.
2106 */
2107 wpas_wps_temp_disable(wpa_s, NULL);
2108 eloop_register_timeout(10, 0, wpas_wps_reenable_networks_cb, wpa_s,
2109 NULL);
2110
d7645d23
JM		 2111 if (wps_oob_use_cred(wpa_s->wps, attr) < 0)
2112 return -1;
2113
2114 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2115 return 0;
2116
2117 wpa_printf(MSG_DEBUG, "WPS: Request reconnection with new network "
2118 "based on the received credential added");
2119 wpa_s->normal_scans = 0;
2120 wpa_supplicant_reinit_autoscan(wpa_s);
bd3a3737
JM		 2121 if (wpa_s->wps_ap_channel) {
2122 u16 chan = wpa_s->wps_ap_channel;
2123 int freq = 0;
2124
2125 if (chan >= 1 && chan <= 13)
2126 freq = 2407 + 5 * chan;
2127 else if (chan == 14)
2128 freq = 2484;
2129 else if (chan >= 30)
2130 freq = 5000 + 5 * chan;
2131
2132 if (freq) {
2133 wpa_printf(MSG_DEBUG, "WPS: Credential indicated "
2134 "AP channel %u -> %u MHz", chan, freq);
2135 wpa_s->after_wps = 5;
2136 wpa_s->wps_freq = freq;
2137 }
2138 }
d7645d23
JM		 2139 wpa_s->disconnected = 0;
2140 wpa_s->reassociate = 1;
2141 wpa_supplicant_req_scan(wpa_s, 0, 0);
2142
2143 return 0;
2144}
2145
2146
6df865fa 2147#ifdef CONFIG_WPS_ER
e6ea2a45
JM		 2148static int wpas_wps_add_nfc_password_token(struct wpa_supplicant *wpa_s,
2149 struct wps_parse_attr *attr)
2150{
e6ea2a45
JM		 2151 return wps_registrar_add_nfc_password_token(
2152 wpa_s->wps->registrar, attr->oob_dev_password,
2153 attr->oob_dev_password_len);
2154}
6df865fa 2155#endif /* CONFIG_WPS_ER */
e6ea2a45
JM		 2156
2157
d7645d23
JM		 2158static int wpas_wps_nfc_tag_process(struct wpa_supplicant *wpa_s,
2159 const struct wpabuf *wps)
2160{
2161 struct wps_parse_attr attr;
2162
2163 wpa_hexdump_buf(MSG_DEBUG, "WPS: Received NFC tag payload", wps);
2164
2165 if (wps_parse_msg(wps, &attr)) {
2166 wpa_printf(MSG_DEBUG, "WPS: Ignore invalid data from NFC tag");
2167 return -1;
2168 }
2169
2170 if (attr.num_cred)
2171 return wpas_wps_use_cred(wpa_s, &attr);
2172
e6ea2a45
JM		 2173#ifdef CONFIG_WPS_ER
2174 if (attr.oob_dev_password)
2175 return wpas_wps_add_nfc_password_token(wpa_s, &attr);
2176#endif /* CONFIG_WPS_ER */
2177
d7645d23
JM		 2178 wpa_printf(MSG_DEBUG, "WPS: Ignore unrecognized NFC tag");
2179 return -1;
2180}
2181
2182
2183int wpas_wps_nfc_tag_read(struct wpa_supplicant *wpa_s,
2184 const struct wpabuf *data)
2185{
2186 const struct wpabuf *wps = data;
2187 struct wpabuf *tmp = NULL;
2188 int ret;
2189
2190 if (wpabuf_len(data) < 4)
2191 return -1;
2192
2193 if (*wpabuf_head_u8(data) != 0x10) {
2194 /* Assume this contains full NDEF record */
2195 tmp = ndef_parse_wifi(data);
2196 if (tmp == NULL) {
2197 wpa_printf(MSG_DEBUG, "WPS: Could not parse NDEF");
2198 return -1;
2199 }
2200 wps = tmp;
2201 }
2202
2203 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2204 wpabuf_free(tmp);
2205 return ret;
2206}
2207
e65552dd 2208
bbaaaee1 2209struct wpabuf * wpas_wps_nfc_handover_req(struct wpa_supplicant *wpa_s, int cr)
e65552dd 2210{
bbaaaee1
JM		 2211 if (cr)
2212 return ndef_build_wifi_hc(1);
e65552dd
JM		 2213 return ndef_build_wifi_hr();
2214}
2215
2216
f3f2ba2e
JM		 2217#ifdef CONFIG_WPS_NFC
2218struct wpabuf * wpas_wps_er_nfc_handover_sel(struct wpa_supplicant *wpa_s,
2219 int ndef, const char *uuid)
2220{
94d7acf3 2221#ifdef CONFIG_WPS_ER
f3f2ba2e 2222 struct wpabuf *ret;
59307b30
JM		 2223 u8 u[UUID_LEN], *use_uuid = NULL;
2224 u8 addr[ETH_ALEN], *use_addr = NULL;
f3f2ba2e
JM		 2225
2226 if (!wpa_s->wps_er)
2227 return NULL;
2228
59307b30
JM		 2229 if (uuid == NULL)
2230 return NULL;
2231 if (uuid_str2bin(uuid, u) == 0)
2232 use_uuid = u;
2233 else if (hwaddr_aton(uuid, addr) == 0)
2234 use_addr = addr;
2235 else
f3f2ba2e
JM		 2236 return NULL;
2237
2238 /*
2239 * Handover Select carrier record for WPS uses the same format as
2240 * configuration token.
2241 */
59307b30 2242 ret = wps_er_nfc_config_token(wpa_s->wps_er, use_uuid, use_addr);
f3f2ba2e
JM		 2243 if (ndef && ret) {
2244 struct wpabuf *tmp;
2245 tmp = ndef_build_wifi(ret);
2246 wpabuf_free(ret);
2247 if (tmp == NULL)
2248 return NULL;
2249 ret = tmp;
2250 }
2251
2252 return ret;
94d7acf3
JM		 2253#else /* CONFIG_WPS_ER */
2254 return NULL;
2255#endif /* CONFIG_WPS_ER */
f3f2ba2e
JM		 2256}
2257#endif /* CONFIG_WPS_NFC */
2258
2259
5ab9a6a5 2260struct wpabuf * wpas_wps_nfc_handover_sel(struct wpa_supplicant *wpa_s,
f3f2ba2e 2261 int ndef, int cr, const char *uuid)
e65552dd 2262{
f3f2ba2e 2263 struct wpabuf *ret;
5ab9a6a5
JM		 2264 if (!cr)
2265 return NULL;
f3f2ba2e
JM		 2266 ret = wpas_ap_wps_nfc_handover_sel(wpa_s, ndef);
2267 if (ret)
2268 return ret;
2269 return wpas_wps_er_nfc_handover_sel(wpa_s, ndef, uuid);
e65552dd
JM		 2270}
2271
2272
2273int wpas_wps_nfc_rx_handover_req(struct wpa_supplicant *wpa_s,
2274 const struct wpabuf *data)
2275{
2276 /* TODO */
2277 return -1;
2278}
2279
2280
2281int wpas_wps_nfc_rx_handover_sel(struct wpa_supplicant *wpa_s,
2282 const struct wpabuf *data)
2283{
2284 struct wpabuf *wps;
2285 int ret;
2286
2287 wps = ndef_parse_wifi(data);
2288 if (wps == NULL)
2289 return -1;
2290 wpa_printf(MSG_DEBUG, "WPS: Received application/vnd.wfa.wsc "
2291 "payload from NFC connection handover");
2292 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: NFC payload", wps);
2293 ret = wpas_wps_nfc_tag_process(wpa_s, wps);
2294 wpabuf_free(wps);
2295
2296 return ret;
2297}
2298
e4758827
JM		 2299
2300int wpas_wps_nfc_report_handover(struct wpa_supplicant *wpa_s,
2301 const struct wpabuf *req,
2302 const struct wpabuf *sel)
2303{
2304 wpa_printf(MSG_DEBUG, "NFC: WPS connection handover reported");
2305 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in request", req);
2306 wpa_hexdump_buf_key(MSG_DEBUG, "WPS: Carrier record in select", sel);
2307 return wpas_wps_nfc_rx_handover_sel(wpa_s, sel);
2308}
2309
3f2c8ba6 2310#endif /* CONFIG_WPS_NFC */
f9f0526b
JM		 2311
2312
2313extern int wpa_debug_level;
2314
2315static void wpas_wps_dump_ap_info(struct wpa_supplicant *wpa_s)
2316{
2317 size_t i;
2318 struct os_time now;
2319
2320 if (wpa_debug_level > MSG_DEBUG)
2321 return;
2322
2323 if (wpa_s->wps_ap == NULL)
2324 return;
2325
2326 os_get_time(&now);
2327
2328 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2329 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2330 struct wpa_blacklist *e = wpa_blacklist_get(wpa_s, ap->bssid);
2331
2332 wpa_printf(MSG_DEBUG, "WPS: AP[%d] " MACSTR " type=%d "
2333 "tries=%d last_attempt=%d sec ago blacklist=%d",
2334 (int) i, MAC2STR(ap->bssid), ap->type, ap->tries,
2335 ap->last_attempt.sec > 0 ?
2336 (int) now.sec - (int) ap->last_attempt.sec : -1,
2337 e ? e->count : 0);
2338 }
2339}
2340
2341
2342static struct wps_ap_info * wpas_wps_get_ap_info(struct wpa_supplicant *wpa_s,
2343 const u8 *bssid)
2344{
2345 size_t i;
2346
2347 if (wpa_s->wps_ap == NULL)
2348 return NULL;
2349
2350 for (i = 0; i < wpa_s->num_wps_ap; i++) {
2351 struct wps_ap_info *ap = &wpa_s->wps_ap[i];
2352 if (os_memcmp(ap->bssid, bssid, ETH_ALEN) == 0)
2353 return ap;
2354 }
2355
2356 return NULL;
2357}
2358
2359
2360static void wpas_wps_update_ap_info_bss(struct wpa_supplicant *wpa_s,
2361 struct wpa_scan_res *res)
2362{
2363 struct wpabuf *wps;
2364 enum wps_ap_info_type type;
2365 struct wps_ap_info *ap;
2366 int r;
2367
2368 if (wpa_scan_get_vendor_ie(res, WPS_IE_VENDOR_TYPE) == NULL)
2369 return;
2370
2371 wps = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
2372 if (wps == NULL)
2373 return;
2374
2375 r = wps_is_addr_authorized(wps, wpa_s->own_addr, 1);
2376 if (r == 2)
2377 type = WPS_AP_SEL_REG_OUR;
2378 else if (r == 1)
2379 type = WPS_AP_SEL_REG;
2380 else
2381 type = WPS_AP_NOT_SEL_REG;
2382
2383 wpabuf_free(wps);
2384
2385 ap = wpas_wps_get_ap_info(wpa_s, res->bssid);
2386 if (ap) {
2387 if (ap->type != type) {
2388 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR
2389 " changed type %d -> %d",
2390 MAC2STR(res->bssid), ap->type, type);
2391 ap->type = type;
a462036a
JM		 2392 if (type != WPS_AP_NOT_SEL_REG)
2393 wpa_blacklist_del(wpa_s, ap->bssid);
f9f0526b
JM		 2394 }
2395 return;
2396 }
2397
2398 ap = os_realloc_array(wpa_s->wps_ap, wpa_s->num_wps_ap + 1,
2399 sizeof(struct wps_ap_info));
2400 if (ap == NULL)
2401 return;
2402
2403 wpa_s->wps_ap = ap;
2404 ap = &wpa_s->wps_ap[wpa_s->num_wps_ap];
2405 wpa_s->num_wps_ap++;
2406
2407 os_memset(ap, 0, sizeof(*ap));
2408 os_memcpy(ap->bssid, res->bssid, ETH_ALEN);
2409 ap->type = type;
2410 wpa_printf(MSG_DEBUG, "WPS: AP " MACSTR " type %d added",
2411 MAC2STR(ap->bssid), ap->type);
2412}
2413
2414
2415void wpas_wps_update_ap_info(struct wpa_supplicant *wpa_s,
2416 struct wpa_scan_results *scan_res)
2417{
2418 size_t i;
2419
2420 for (i = 0; i < scan_res->num; i++)
2421 wpas_wps_update_ap_info_bss(wpa_s, scan_res->res[i]);
2422
2423 wpas_wps_dump_ap_info(wpa_s);
2424}
2425
2426
2427void wpas_wps_notify_assoc(struct wpa_supplicant *wpa_s, const u8 *bssid)
2428{
2429 struct wps_ap_info *ap;
2430 if (!wpa_s->wps_ap_iter)
2431 return;
2432 ap = wpas_wps_get_ap_info(wpa_s, bssid);
2433 if (ap == NULL)
2434 return;
2435 ap->tries++;
2436 os_get_time(&ap->last_attempt);
2437}
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