2 * wpa_supplicant / WPS integration
3 * Copyright (c) 2008-2010, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
14 #include "crypto/dh_group5.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/ieee802_11_common.h"
17 #include "common/wpa_common.h"
18 #include "common/wpa_ctrl.h"
19 #include "eap_common/eap_wsc_common.h"
20 #include "eap_peer/eap.h"
21 #include "eapol_supp/eapol_supp_sm.h"
22 #include "rsn_supp/wpa.h"
24 #include "wpa_supplicant_i.h"
27 #include "blacklist.h"
32 #include "p2p_supplicant.h"
33 #include "wps_supplicant.h"
36 #ifndef WPS_PIN_SCAN_IGNORE_SEL_REG
37 #define WPS_PIN_SCAN_IGNORE_SEL_REG 3
38 #endif /* WPS_PIN_SCAN_IGNORE_SEL_REG */
40 static void wpas_wps_timeout(void *eloop_ctx
, void *timeout_ctx
);
41 static void wpas_clear_wps(struct wpa_supplicant
*wpa_s
);
44 int wpas_wps_eapol_cb(struct wpa_supplicant
*wpa_s
)
46 if (!wpa_s
->wps_success
&&
47 wpa_s
->current_ssid
&&
48 eap_is_wps_pin_enrollee(&wpa_s
->current_ssid
->eap
)) {
49 const u8
*bssid
= wpa_s
->bssid
;
50 if (is_zero_ether_addr(bssid
))
51 bssid
= wpa_s
->pending_bssid
;
53 wpa_printf(MSG_DEBUG
, "WPS: PIN registration with " MACSTR
54 " did not succeed - continue trying to find "
55 "suitable AP", MAC2STR(bssid
));
56 wpa_blacklist_add(wpa_s
, bssid
);
58 wpa_supplicant_deauthenticate(wpa_s
,
59 WLAN_REASON_DEAUTH_LEAVING
);
60 wpa_s
->reassociate
= 1;
61 wpa_supplicant_req_scan(wpa_s
,
62 wpa_s
->blacklist_cleared
? 5 : 0, 0);
63 wpa_s
->blacklist_cleared
= 0;
67 eloop_cancel_timeout(wpas_wps_timeout
, wpa_s
, NULL
);
68 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPS
&& !wpa_s
->wps_success
)
69 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_FAIL
);
71 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPS
&& wpa_s
->current_ssid
&&
72 !(wpa_s
->current_ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
)) {
73 int disabled
= wpa_s
->current_ssid
->disabled
;
74 unsigned int freq
= wpa_s
->assoc_freq
;
75 wpa_printf(MSG_DEBUG
, "WPS: Network configuration replaced - "
76 "try to associate with the received credential "
78 wpa_supplicant_deauthenticate(wpa_s
,
79 WLAN_REASON_DEAUTH_LEAVING
);
81 wpa_printf(MSG_DEBUG
, "WPS: Current network is "
82 "disabled - wait for user to enable");
86 wpa_s
->wps_freq
= freq
;
87 wpa_s
->normal_scans
= 0;
88 wpa_s
->reassociate
= 1;
89 wpa_supplicant_req_scan(wpa_s
, 0, 0);
93 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPS
&& wpa_s
->current_ssid
) {
94 wpa_printf(MSG_DEBUG
, "WPS: Registration completed - waiting "
95 "for external credential processing");
96 wpas_clear_wps(wpa_s
);
97 wpa_supplicant_deauthenticate(wpa_s
,
98 WLAN_REASON_DEAUTH_LEAVING
);
106 static void wpas_wps_security_workaround(struct wpa_supplicant
*wpa_s
,
107 struct wpa_ssid
*ssid
,
108 const struct wps_credential
*cred
)
110 struct wpa_driver_capa capa
;
113 struct wpa_ie_data adv
;
114 int wpa2
= 0, ccmp
= 0;
117 * Many existing WPS APs do not know how to negotiate WPA2 or CCMP in
118 * case they are configured for mixed mode operation (WPA+WPA2 and
119 * TKIP+CCMP). Try to use scan results to figure out whether the AP
120 * actually supports stronger security and select that if the client
121 * has support for it, too.
124 if (wpa_drv_get_capa(wpa_s
, &capa
))
125 return; /* Unknown what driver supports */
127 if (ssid
->ssid
== NULL
)
129 bss
= wpa_bss_get(wpa_s
, cred
->mac_addr
, ssid
->ssid
, ssid
->ssid_len
);
131 wpa_printf(MSG_DEBUG
, "WPS: The AP was not found from BSS "
132 "table - use credential as-is");
136 wpa_printf(MSG_DEBUG
, "WPS: AP found from BSS table");
138 ie
= wpa_bss_get_ie(bss
, WLAN_EID_RSN
);
139 if (ie
&& wpa_parse_wpa_ie(ie
, 2 + ie
[1], &adv
) == 0) {
141 if (adv
.pairwise_cipher
& WPA_CIPHER_CCMP
)
144 ie
= wpa_bss_get_vendor_ie(bss
, WPA_IE_VENDOR_TYPE
);
145 if (ie
&& wpa_parse_wpa_ie(ie
, 2 + ie
[1], &adv
) == 0 &&
146 adv
.pairwise_cipher
& WPA_CIPHER_CCMP
)
150 if (ie
== NULL
&& (ssid
->proto
& WPA_PROTO_WPA
) &&
151 (ssid
->pairwise_cipher
& WPA_CIPHER_TKIP
)) {
153 * TODO: This could be the initial AP configuration and the
154 * Beacon contents could change shortly. Should request a new
155 * scan and delay addition of the network until the updated
156 * scan results are available.
158 wpa_printf(MSG_DEBUG
, "WPS: The AP did not yet advertise WPA "
159 "support - use credential as-is");
163 if (ccmp
&& !(ssid
->pairwise_cipher
& WPA_CIPHER_CCMP
) &&
164 (ssid
->pairwise_cipher
& WPA_CIPHER_TKIP
) &&
165 (capa
.key_mgmt
& WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK
)) {
166 wpa_printf(MSG_DEBUG
, "WPS: Add CCMP into the credential "
167 "based on scan results");
168 if (wpa_s
->conf
->ap_scan
== 1)
169 ssid
->pairwise_cipher
|= WPA_CIPHER_CCMP
;
171 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
174 if (wpa2
&& !(ssid
->proto
& WPA_PROTO_RSN
) &&
175 (ssid
->proto
& WPA_PROTO_WPA
) &&
176 (capa
.enc
& WPA_DRIVER_CAPA_ENC_CCMP
)) {
177 wpa_printf(MSG_DEBUG
, "WPS: Add WPA2 into the credential "
178 "based on scan results");
179 if (wpa_s
->conf
->ap_scan
== 1)
180 ssid
->proto
|= WPA_PROTO_RSN
;
182 ssid
->proto
= WPA_PROTO_RSN
;
187 static int wpa_supplicant_wps_cred(void *ctx
,
188 const struct wps_credential
*cred
)
190 struct wpa_supplicant
*wpa_s
= ctx
;
191 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
194 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
196 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
198 if ((wpa_s
->conf
->wps_cred_processing
== 1 ||
199 wpa_s
->conf
->wps_cred_processing
== 2) && cred
->cred_attr
) {
200 size_t blen
= cred
->cred_attr_len
* 2 + 1;
201 char *buf
= os_malloc(blen
);
203 wpa_snprintf_hex(buf
, blen
,
204 cred
->cred_attr
, cred
->cred_attr_len
);
205 wpa_msg(wpa_s
, MSG_INFO
, "%s%s",
206 WPS_EVENT_CRED_RECEIVED
, buf
);
210 wpas_notify_wps_credential(wpa_s
, cred
);
212 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_CRED_RECEIVED
);
214 wpa_hexdump_key(MSG_DEBUG
, "WPS: Received Credential attribute",
215 cred
->cred_attr
, cred
->cred_attr_len
);
217 if (wpa_s
->conf
->wps_cred_processing
== 1)
220 wpa_hexdump_ascii(MSG_DEBUG
, "WPS: SSID", cred
->ssid
, cred
->ssid_len
);
221 wpa_printf(MSG_DEBUG
, "WPS: Authentication Type 0x%x",
223 wpa_printf(MSG_DEBUG
, "WPS: Encryption Type 0x%x", cred
->encr_type
);
224 wpa_printf(MSG_DEBUG
, "WPS: Network Key Index %d", cred
->key_idx
);
225 wpa_hexdump_key(MSG_DEBUG
, "WPS: Network Key",
226 cred
->key
, cred
->key_len
);
227 wpa_printf(MSG_DEBUG
, "WPS: MAC Address " MACSTR
,
228 MAC2STR(cred
->mac_addr
));
230 auth_type
= cred
->auth_type
;
231 if (auth_type
== (WPS_AUTH_WPAPSK
| WPS_AUTH_WPA2PSK
)) {
232 wpa_printf(MSG_DEBUG
, "WPS: Workaround - convert mixed-mode "
233 "auth_type into WPA2PSK");
234 auth_type
= WPS_AUTH_WPA2PSK
;
237 if (auth_type
!= WPS_AUTH_OPEN
&&
238 auth_type
!= WPS_AUTH_SHARED
&&
239 auth_type
!= WPS_AUTH_WPAPSK
&&
240 auth_type
!= WPS_AUTH_WPA2PSK
) {
241 wpa_printf(MSG_DEBUG
, "WPS: Ignored credentials for "
242 "unsupported authentication type 0x%x",
247 if (ssid
&& (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
)) {
248 wpa_printf(MSG_DEBUG
, "WPS: Replace WPS network block based "
249 "on the received credential");
250 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
251 if (ssid
->eap
.identity
&&
252 ssid
->eap
.identity_len
== WSC_ID_REGISTRAR_LEN
&&
253 os_memcmp(ssid
->eap
.identity
, WSC_ID_REGISTRAR
,
254 WSC_ID_REGISTRAR_LEN
) == 0)
256 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
257 os_free(ssid
->eap
.identity
);
258 ssid
->eap
.identity
= NULL
;
259 ssid
->eap
.identity_len
= 0;
260 os_free(ssid
->eap
.phase1
);
261 ssid
->eap
.phase1
= NULL
;
262 os_free(ssid
->eap
.eap_methods
);
263 ssid
->eap
.eap_methods
= NULL
;
264 if (!ssid
->p2p_group
)
267 wpa_printf(MSG_DEBUG
, "WPS: Create a new network based on the "
268 "received credential");
269 ssid
= wpa_config_add_network(wpa_s
->conf
);
272 wpas_notify_network_added(wpa_s
, ssid
);
275 wpa_config_set_network_defaults(ssid
);
278 ssid
->ssid
= os_malloc(cred
->ssid_len
);
280 os_memcpy(ssid
->ssid
, cred
->ssid
, cred
->ssid_len
);
281 ssid
->ssid_len
= cred
->ssid_len
;
284 switch (cred
->encr_type
) {
288 if (cred
->key_len
<= 0)
290 if (cred
->key_len
!= 5 && cred
->key_len
!= 13 &&
291 cred
->key_len
!= 10 && cred
->key_len
!= 26) {
292 wpa_printf(MSG_ERROR
, "WPS: Invalid WEP Key length "
293 "%lu", (unsigned long) cred
->key_len
);
296 if (cred
->key_idx
> NUM_WEP_KEYS
) {
297 wpa_printf(MSG_ERROR
, "WPS: Invalid WEP Key index %d",
302 key_idx
= cred
->key_idx
- 1;
303 if (cred
->key_len
== 10 || cred
->key_len
== 26) {
304 if (hexstr2bin((char *) cred
->key
,
305 ssid
->wep_key
[key_idx
],
306 cred
->key_len
/ 2) < 0) {
307 wpa_printf(MSG_ERROR
, "WPS: Invalid WEP Key "
311 ssid
->wep_key_len
[key_idx
] = cred
->key_len
/ 2;
313 os_memcpy(ssid
->wep_key
[key_idx
], cred
->key
,
315 ssid
->wep_key_len
[key_idx
] = cred
->key_len
;
317 ssid
->wep_tx_keyidx
= key_idx
;
320 ssid
->pairwise_cipher
= WPA_CIPHER_TKIP
;
323 ssid
->pairwise_cipher
= WPA_CIPHER_CCMP
;
329 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
330 ssid
->key_mgmt
= WPA_KEY_MGMT_NONE
;
332 #ifdef CONFIG_WPS_REG_DISABLE_OPEN
334 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_OPEN_NETWORK
335 "id=%d - Credentials for an open "
336 "network disabled by default - use "
337 "'select_network %d' to enable",
341 #endif /* CONFIG_WPS_REG_DISABLE_OPEN */
343 case WPS_AUTH_SHARED
:
344 ssid
->auth_alg
= WPA_AUTH_ALG_SHARED
;
345 ssid
->key_mgmt
= WPA_KEY_MGMT_NONE
;
348 case WPS_AUTH_WPAPSK
:
349 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
350 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
351 ssid
->proto
= WPA_PROTO_WPA
;
354 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
355 ssid
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X
;
356 ssid
->proto
= WPA_PROTO_WPA
;
359 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
360 ssid
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X
;
361 ssid
->proto
= WPA_PROTO_RSN
;
363 case WPS_AUTH_WPA2PSK
:
364 ssid
->auth_alg
= WPA_AUTH_ALG_OPEN
;
365 ssid
->key_mgmt
= WPA_KEY_MGMT_PSK
;
366 ssid
->proto
= WPA_PROTO_RSN
;
370 if (ssid
->key_mgmt
== WPA_KEY_MGMT_PSK
) {
371 if (cred
->key_len
== 2 * PMK_LEN
) {
372 if (hexstr2bin((const char *) cred
->key
, ssid
->psk
,
374 wpa_printf(MSG_ERROR
, "WPS: Invalid Network "
379 ssid
->export_keys
= 1;
380 } else if (cred
->key_len
>= 8 && cred
->key_len
< 2 * PMK_LEN
) {
381 os_free(ssid
->passphrase
);
382 ssid
->passphrase
= os_malloc(cred
->key_len
+ 1);
383 if (ssid
->passphrase
== NULL
)
385 os_memcpy(ssid
->passphrase
, cred
->key
, cred
->key_len
);
386 ssid
->passphrase
[cred
->key_len
] = '\0';
387 wpa_config_update_psk(ssid
);
388 ssid
->export_keys
= 1;
390 wpa_printf(MSG_ERROR
, "WPS: Invalid Network Key "
392 (unsigned long) cred
->key_len
);
397 wpas_wps_security_workaround(wpa_s
, ssid
, cred
);
399 #ifndef CONFIG_NO_CONFIG_WRITE
400 if (wpa_s
->conf
->update_config
&&
401 wpa_config_write(wpa_s
->confname
, wpa_s
->conf
)) {
402 wpa_printf(MSG_DEBUG
, "WPS: Failed to update configuration");
405 #endif /* CONFIG_NO_CONFIG_WRITE */
412 static void wpas_wps_pbc_overlap_cb(void *eloop_ctx
, void *timeout_ctx
)
414 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
415 wpas_p2p_notif_pbc_overlap(wpa_s
);
417 #endif /* CONFIG_P2P */
420 static void wpa_supplicant_wps_event_m2d(struct wpa_supplicant
*wpa_s
,
421 struct wps_event_m2d
*m2d
)
423 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_M2D
424 "dev_password_id=%d config_error=%d",
425 m2d
->dev_password_id
, m2d
->config_error
);
426 wpas_notify_wps_event_m2d(wpa_s
, m2d
);
428 if (wpa_s
->parent
&& wpa_s
->parent
!= wpa_s
) {
429 wpa_msg(wpa_s
->parent
, MSG_INFO
, WPS_EVENT_M2D
430 "dev_password_id=%d config_error=%d",
431 m2d
->dev_password_id
, m2d
->config_error
);
433 if (m2d
->config_error
== WPS_CFG_MULTIPLE_PBC_DETECTED
) {
435 * Notify P2P from eloop timeout to avoid issues with the
436 * interface getting removed while processing a message.
438 eloop_register_timeout(0, 0, wpas_wps_pbc_overlap_cb
, wpa_s
,
441 #endif /* CONFIG_P2P */
445 static const char * wps_event_fail_reason
[NUM_WPS_EI_VALUES
] = {
446 "No Error", /* WPS_EI_NO_ERROR */
447 "TKIP Only Prohibited", /* WPS_EI_SECURITY_TKIP_ONLY_PROHIBITED */
448 "WEP Prohibited" /* WPS_EI_SECURITY_WEP_PROHIBITED */
451 static void wpa_supplicant_wps_event_fail(struct wpa_supplicant
*wpa_s
,
452 struct wps_event_fail
*fail
)
454 if (fail
->error_indication
> 0 &&
455 fail
->error_indication
< NUM_WPS_EI_VALUES
) {
456 wpa_msg(wpa_s
, MSG_INFO
,
457 WPS_EVENT_FAIL
"msg=%d config_error=%d reason=%d (%s)",
458 fail
->msg
, fail
->config_error
, fail
->error_indication
,
459 wps_event_fail_reason
[fail
->error_indication
]);
460 if (wpa_s
->parent
&& wpa_s
->parent
!= wpa_s
)
461 wpa_msg(wpa_s
->parent
, MSG_INFO
, WPS_EVENT_FAIL
462 "msg=%d config_error=%d reason=%d (%s)",
463 fail
->msg
, fail
->config_error
,
464 fail
->error_indication
,
465 wps_event_fail_reason
[fail
->error_indication
]);
467 wpa_msg(wpa_s
, MSG_INFO
,
468 WPS_EVENT_FAIL
"msg=%d config_error=%d",
469 fail
->msg
, fail
->config_error
);
470 if (wpa_s
->parent
&& wpa_s
->parent
!= wpa_s
)
471 wpa_msg(wpa_s
->parent
, MSG_INFO
, WPS_EVENT_FAIL
472 "msg=%d config_error=%d",
473 fail
->msg
, fail
->config_error
);
475 wpas_clear_wps(wpa_s
);
476 wpas_notify_wps_event_fail(wpa_s
, fail
);
478 wpas_p2p_wps_failed(wpa_s
, fail
);
479 #endif /* CONFIG_P2P */
483 static void wpa_supplicant_wps_event_success(struct wpa_supplicant
*wpa_s
)
485 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_SUCCESS
);
486 wpa_s
->wps_success
= 1;
487 wpas_notify_wps_event_success(wpa_s
);
489 wpas_p2p_wps_success(wpa_s
, wpa_s
->bssid
, 0);
490 #endif /* CONFIG_P2P */
494 static void wpa_supplicant_wps_event_er_ap_add(struct wpa_supplicant
*wpa_s
,
495 struct wps_event_er_ap
*ap
)
498 char dev_type
[WPS_DEV_TYPE_BUFSIZE
];
500 uuid_bin2str(ap
->uuid
, uuid_str
, sizeof(uuid_str
));
501 if (ap
->pri_dev_type
)
502 wps_dev_type_bin2str(ap
->pri_dev_type
, dev_type
,
507 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_ER_AP_ADD
"%s " MACSTR
508 " pri_dev_type=%s wps_state=%d |%s|%s|%s|%s|%s|%s|",
509 uuid_str
, MAC2STR(ap
->mac_addr
), dev_type
, ap
->wps_state
,
510 ap
->friendly_name
? ap
->friendly_name
: "",
511 ap
->manufacturer
? ap
->manufacturer
: "",
512 ap
->model_description
? ap
->model_description
: "",
513 ap
->model_name
? ap
->model_name
: "",
514 ap
->manufacturer_url
? ap
->manufacturer_url
: "",
515 ap
->model_url
? ap
->model_url
: "");
519 static void wpa_supplicant_wps_event_er_ap_remove(struct wpa_supplicant
*wpa_s
,
520 struct wps_event_er_ap
*ap
)
523 uuid_bin2str(ap
->uuid
, uuid_str
, sizeof(uuid_str
));
524 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_ER_AP_REMOVE
"%s", uuid_str
);
528 static void wpa_supplicant_wps_event_er_enrollee_add(
529 struct wpa_supplicant
*wpa_s
, struct wps_event_er_enrollee
*enrollee
)
532 char dev_type
[WPS_DEV_TYPE_BUFSIZE
];
534 uuid_bin2str(enrollee
->uuid
, uuid_str
, sizeof(uuid_str
));
535 if (enrollee
->pri_dev_type
)
536 wps_dev_type_bin2str(enrollee
->pri_dev_type
, dev_type
,
541 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_ER_ENROLLEE_ADD
"%s " MACSTR
542 " M1=%d config_methods=0x%x dev_passwd_id=%d pri_dev_type=%s "
544 uuid_str
, MAC2STR(enrollee
->mac_addr
), enrollee
->m1_received
,
545 enrollee
->config_methods
, enrollee
->dev_passwd_id
, dev_type
,
546 enrollee
->dev_name
? enrollee
->dev_name
: "",
547 enrollee
->manufacturer
? enrollee
->manufacturer
: "",
548 enrollee
->model_name
? enrollee
->model_name
: "",
549 enrollee
->model_number
? enrollee
->model_number
: "",
550 enrollee
->serial_number
? enrollee
->serial_number
: "");
554 static void wpa_supplicant_wps_event_er_enrollee_remove(
555 struct wpa_supplicant
*wpa_s
, struct wps_event_er_enrollee
*enrollee
)
558 uuid_bin2str(enrollee
->uuid
, uuid_str
, sizeof(uuid_str
));
559 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_ER_ENROLLEE_REMOVE
"%s " MACSTR
,
560 uuid_str
, MAC2STR(enrollee
->mac_addr
));
564 static void wpa_supplicant_wps_event_er_ap_settings(
565 struct wpa_supplicant
*wpa_s
,
566 struct wps_event_er_ap_settings
*ap_settings
)
570 const struct wps_credential
*cred
= ap_settings
->cred
;
573 if (cred
->auth_type
& (WPS_AUTH_WPAPSK
| WPS_AUTH_WPA2PSK
)) {
574 if (cred
->key_len
>= 8 && cred
->key_len
<= 64) {
575 os_memcpy(key_str
, cred
->key
, cred
->key_len
);
576 key_str
[cred
->key_len
] = '\0';
580 uuid_bin2str(ap_settings
->uuid
, uuid_str
, sizeof(uuid_str
));
581 /* Use wpa_msg_ctrl to avoid showing the key in debug log */
582 wpa_msg_ctrl(wpa_s
, MSG_INFO
, WPS_EVENT_ER_AP_SETTINGS
583 "uuid=%s ssid=%s auth_type=0x%04x encr_type=0x%04x "
585 uuid_str
, wpa_ssid_txt(cred
->ssid
, cred
->ssid_len
),
586 cred
->auth_type
, cred
->encr_type
, key_str
);
590 static void wpa_supplicant_wps_event_er_set_sel_reg(
591 struct wpa_supplicant
*wpa_s
,
592 struct wps_event_er_set_selected_registrar
*ev
)
596 uuid_bin2str(ev
->uuid
, uuid_str
, sizeof(uuid_str
));
598 case WPS_ER_SET_SEL_REG_START
:
599 wpa_msg(wpa_s
, MSG_DEBUG
, WPS_EVENT_ER_SET_SEL_REG
600 "uuid=%s state=START sel_reg=%d dev_passwd_id=%u "
601 "sel_reg_config_methods=0x%x",
602 uuid_str
, ev
->sel_reg
, ev
->dev_passwd_id
,
603 ev
->sel_reg_config_methods
);
605 case WPS_ER_SET_SEL_REG_DONE
:
606 wpa_msg(wpa_s
, MSG_DEBUG
, WPS_EVENT_ER_SET_SEL_REG
607 "uuid=%s state=DONE", uuid_str
);
609 case WPS_ER_SET_SEL_REG_FAILED
:
610 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_ER_SET_SEL_REG
611 "uuid=%s state=FAILED", uuid_str
);
617 static void wpa_supplicant_wps_event(void *ctx
, enum wps_event event
,
618 union wps_event_data
*data
)
620 struct wpa_supplicant
*wpa_s
= ctx
;
623 wpa_supplicant_wps_event_m2d(wpa_s
, &data
->m2d
);
626 wpa_supplicant_wps_event_fail(wpa_s
, &data
->fail
);
629 wpa_supplicant_wps_event_success(wpa_s
);
631 case WPS_EV_PWD_AUTH_FAIL
:
633 if (wpa_s
->ap_iface
&& data
->pwd_auth_fail
.enrollee
)
634 wpa_supplicant_ap_pwd_auth_fail(wpa_s
);
635 #endif /* CONFIG_AP */
637 case WPS_EV_PBC_OVERLAP
:
639 case WPS_EV_PBC_TIMEOUT
:
641 case WPS_EV_ER_AP_ADD
:
642 wpa_supplicant_wps_event_er_ap_add(wpa_s
, &data
->ap
);
644 case WPS_EV_ER_AP_REMOVE
:
645 wpa_supplicant_wps_event_er_ap_remove(wpa_s
, &data
->ap
);
647 case WPS_EV_ER_ENROLLEE_ADD
:
648 wpa_supplicant_wps_event_er_enrollee_add(wpa_s
,
651 case WPS_EV_ER_ENROLLEE_REMOVE
:
652 wpa_supplicant_wps_event_er_enrollee_remove(wpa_s
,
655 case WPS_EV_ER_AP_SETTINGS
:
656 wpa_supplicant_wps_event_er_ap_settings(wpa_s
,
659 case WPS_EV_ER_SET_SELECTED_REGISTRAR
:
660 wpa_supplicant_wps_event_er_set_sel_reg(wpa_s
,
663 case WPS_EV_AP_PIN_SUCCESS
:
669 enum wps_request_type
wpas_wps_get_req_type(struct wpa_ssid
*ssid
)
671 if (eap_is_wps_pbc_enrollee(&ssid
->eap
) ||
672 eap_is_wps_pin_enrollee(&ssid
->eap
))
673 return WPS_REQ_ENROLLEE
;
675 return WPS_REQ_REGISTRAR
;
679 static void wpas_clear_wps(struct wpa_supplicant
*wpa_s
)
682 struct wpa_ssid
*ssid
, *remove_ssid
= NULL
, *prev_current
;
684 prev_current
= wpa_s
->current_ssid
;
686 eloop_cancel_timeout(wpas_wps_timeout
, wpa_s
, NULL
);
688 /* Remove any existing WPS network from configuration */
689 ssid
= wpa_s
->conf
->ssid
;
691 if (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
) {
692 if (ssid
== wpa_s
->current_ssid
) {
693 wpa_s
->current_ssid
= NULL
;
695 wpas_notify_network_changed(wpa_s
);
703 if (prev_current
== remove_ssid
) {
704 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
705 eapol_sm_notify_config(wpa_s
->eapol
, NULL
,
708 wpas_notify_network_removed(wpa_s
, remove_ssid
);
709 wpa_config_remove_network(wpa_s
->conf
, id
);
715 static void wpas_wps_timeout(void *eloop_ctx
, void *timeout_ctx
)
717 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
718 wpa_msg(wpa_s
, MSG_INFO
, WPS_EVENT_TIMEOUT
"Requested operation timed "
720 wpas_clear_wps(wpa_s
);
724 static struct wpa_ssid
* wpas_wps_add_network(struct wpa_supplicant
*wpa_s
,
725 int registrar
, const u8
*bssid
)
727 struct wpa_ssid
*ssid
;
729 ssid
= wpa_config_add_network(wpa_s
->conf
);
732 wpas_notify_network_added(wpa_s
, ssid
);
733 wpa_config_set_network_defaults(ssid
);
735 if (wpa_config_set(ssid
, "key_mgmt", "WPS", 0) < 0 ||
736 wpa_config_set(ssid
, "eap", "WSC", 0) < 0 ||
737 wpa_config_set(ssid
, "identity", registrar
?
738 "\"" WSC_ID_REGISTRAR
"\"" :
739 "\"" WSC_ID_ENROLLEE
"\"", 0) < 0) {
740 wpas_notify_network_removed(wpa_s
, ssid
);
741 wpa_config_remove_network(wpa_s
->conf
, ssid
->id
);
749 #endif /* CONFIG_P2P */
751 os_memcpy(ssid
->bssid
, bssid
, ETH_ALEN
);
755 * Note: With P2P, the SSID may change at the time the WPS
756 * provisioning is started, so better not filter the AP based
757 * on the current SSID in the scan results.
760 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
761 if (os_memcmp(bssid
, bss
->bssid
, ETH_ALEN
) != 0)
765 ssid
->ssid
= os_malloc(bss
->ssid_len
);
766 if (ssid
->ssid
== NULL
)
768 os_memcpy(ssid
->ssid
, bss
->ssid
, bss
->ssid_len
);
769 ssid
->ssid_len
= bss
->ssid_len
;
770 wpa_hexdump_ascii(MSG_DEBUG
, "WPS: Picked SSID from "
772 ssid
->ssid
, ssid
->ssid_len
);
777 wpa_printf(MSG_DEBUG
, "WPS: More than one SSID found "
778 "for the AP; use wildcard");
783 #endif /* CONFIG_P2P */
790 static void wpas_wps_reassoc(struct wpa_supplicant
*wpa_s
,
791 struct wpa_ssid
*selected
, const u8
*bssid
)
793 struct wpa_ssid
*ssid
;
796 wpa_s
->known_wps_freq
= 0;
798 bss
= wpa_bss_get_bssid(wpa_s
, bssid
);
799 if (bss
&& bss
->freq
> 0) {
800 wpa_s
->known_wps_freq
= 1;
801 wpa_s
->wps_freq
= bss
->freq
;
805 if (wpa_s
->current_ssid
)
806 wpa_supplicant_deauthenticate(
807 wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
809 /* Mark all other networks disabled and trigger reassociation */
810 ssid
= wpa_s
->conf
->ssid
;
812 int was_disabled
= ssid
->disabled
;
814 * In case the network object corresponds to a persistent group
815 * then do not send out network disabled signal. In addition,
816 * do not change disabled status of persistent network objects
817 * from 2 to 1 should we connect to another network.
819 if (was_disabled
!= 2) {
820 ssid
->disabled
= ssid
!= selected
;
821 if (was_disabled
!= ssid
->disabled
)
822 wpas_notify_network_enabled_changed(wpa_s
,
827 wpa_s
->disconnected
= 0;
828 wpa_s
->reassociate
= 1;
829 wpa_s
->scan_runs
= 0;
830 wpa_s
->normal_scans
= 0;
831 wpa_s
->wps_success
= 0;
832 wpa_s
->blacklist_cleared
= 0;
833 wpa_supplicant_req_scan(wpa_s
, 0, 0);
837 int wpas_wps_start_pbc(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
840 struct wpa_ssid
*ssid
;
841 wpas_clear_wps(wpa_s
);
842 ssid
= wpas_wps_add_network(wpa_s
, 0, bssid
);
846 ssid
->p2p_group
= p2p_group
;
848 if (p2p_group
&& wpa_s
->go_params
&& wpa_s
->go_params
->ssid_len
) {
849 ssid
->ssid
= os_zalloc(wpa_s
->go_params
->ssid_len
+ 1);
851 ssid
->ssid_len
= wpa_s
->go_params
->ssid_len
;
852 os_memcpy(ssid
->ssid
, wpa_s
->go_params
->ssid
,
854 wpa_hexdump_ascii(MSG_DEBUG
, "WPS: Use specific AP "
855 "SSID", ssid
->ssid
, ssid
->ssid_len
);
858 #endif /* CONFIG_P2P */
859 wpa_config_set(ssid
, "phase1", "\"pbc=1\"", 0);
860 if (wpa_s
->wps_fragment_size
)
861 ssid
->eap
.fragment_size
= wpa_s
->wps_fragment_size
;
862 eloop_register_timeout(WPS_PBC_WALK_TIME
, 0, wpas_wps_timeout
,
864 wpas_wps_reassoc(wpa_s
, ssid
, bssid
);
869 int wpas_wps_start_pin(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
870 const char *pin
, int p2p_group
, u16 dev_pw_id
)
872 struct wpa_ssid
*ssid
;
874 unsigned int rpin
= 0;
876 wpas_clear_wps(wpa_s
);
877 ssid
= wpas_wps_add_network(wpa_s
, 0, bssid
);
881 ssid
->p2p_group
= p2p_group
;
883 if (p2p_group
&& wpa_s
->go_params
&& wpa_s
->go_params
->ssid_len
) {
884 ssid
->ssid
= os_zalloc(wpa_s
->go_params
->ssid_len
+ 1);
886 ssid
->ssid_len
= wpa_s
->go_params
->ssid_len
;
887 os_memcpy(ssid
->ssid
, wpa_s
->go_params
->ssid
,
889 wpa_hexdump_ascii(MSG_DEBUG
, "WPS: Use specific AP "
890 "SSID", ssid
->ssid
, ssid
->ssid_len
);
893 #endif /* CONFIG_P2P */
895 os_snprintf(val
, sizeof(val
), "\"pin=%s dev_pw_id=%u\"",
898 rpin
= wps_generate_pin();
899 os_snprintf(val
, sizeof(val
), "\"pin=%08d dev_pw_id=%u\"",
902 wpa_config_set(ssid
, "phase1", val
, 0);
903 if (wpa_s
->wps_fragment_size
)
904 ssid
->eap
.fragment_size
= wpa_s
->wps_fragment_size
;
905 eloop_register_timeout(WPS_PBC_WALK_TIME
, 0, wpas_wps_timeout
,
907 wpas_wps_reassoc(wpa_s
, ssid
, bssid
);
912 /* Cancel the wps pbc/pin requests */
913 int wpas_wps_cancel(struct wpa_supplicant
*wpa_s
)
916 if (wpa_s
->ap_iface
) {
917 wpa_printf(MSG_DEBUG
, "WPS: Cancelling in AP mode");
918 return wpa_supplicant_ap_wps_cancel(wpa_s
);
920 #endif /* CONFIG_AP */
922 if (wpa_s
->wpa_state
== WPA_SCANNING
) {
923 wpa_printf(MSG_DEBUG
, "WPS: Cancel operation - cancel scan");
924 wpa_supplicant_cancel_scan(wpa_s
);
925 wpas_clear_wps(wpa_s
);
926 } else if (wpa_s
->wpa_state
>= WPA_ASSOCIATED
) {
927 wpa_printf(MSG_DEBUG
, "WPS: Cancel operation - "
929 wpa_supplicant_deauthenticate(wpa_s
,
930 WLAN_REASON_DEAUTH_LEAVING
);
931 wpas_clear_wps(wpa_s
);
938 #ifdef CONFIG_WPS_OOB
939 int wpas_wps_start_oob(struct wpa_supplicant
*wpa_s
, char *device_type
,
940 char *path
, char *method
, char *name
)
942 struct wps_context
*wps
= wpa_s
->wps
;
943 struct oob_device_data
*oob_dev
;
945 oob_dev
= wps_get_oob_device(device_type
);
948 oob_dev
->device_path
= path
;
949 oob_dev
->device_name
= name
;
950 wps
->oob_conf
.oob_method
= wps_get_oob_method(method
);
952 if (wps
->oob_conf
.oob_method
== OOB_METHOD_DEV_PWD_E
) {
954 * Use pre-configured DH keys in order to be able to write the
955 * key hash into the OOB file.
957 wpabuf_free(wps
->dh_pubkey
);
958 wpabuf_free(wps
->dh_privkey
);
959 wps
->dh_privkey
= NULL
;
960 wps
->dh_pubkey
= NULL
;
961 dh5_free(wps
->dh_ctx
);
962 wps
->dh_ctx
= dh5_init(&wps
->dh_privkey
, &wps
->dh_pubkey
);
963 wps
->dh_pubkey
= wpabuf_zeropad(wps
->dh_pubkey
, 192);
964 if (wps
->dh_ctx
== NULL
|| wps
->dh_pubkey
== NULL
) {
965 wpa_printf(MSG_ERROR
, "WPS: Failed to initialize "
966 "Diffie-Hellman handshake");
971 if (wps
->oob_conf
.oob_method
== OOB_METHOD_CRED
)
972 wpas_clear_wps(wpa_s
);
974 if (wps_process_oob(wps
, oob_dev
, 0) < 0)
977 if ((wps
->oob_conf
.oob_method
== OOB_METHOD_DEV_PWD_E
||
978 wps
->oob_conf
.oob_method
== OOB_METHOD_DEV_PWD_R
) &&
979 wpas_wps_start_pin(wpa_s
, NULL
,
980 wpabuf_head(wps
->oob_conf
.dev_password
), 0,
986 #endif /* CONFIG_WPS_OOB */
989 int wpas_wps_start_reg(struct wpa_supplicant
*wpa_s
, const u8
*bssid
,
990 const char *pin
, struct wps_new_ap_settings
*settings
)
992 struct wpa_ssid
*ssid
;
999 wpas_clear_wps(wpa_s
);
1000 ssid
= wpas_wps_add_network(wpa_s
, 1, bssid
);
1003 ssid
->temporary
= 1;
1005 end
= pos
+ sizeof(val
);
1006 res
= os_snprintf(pos
, end
- pos
, "\"pin=%s", pin
);
1007 if (res
< 0 || res
>= end
- pos
)
1011 res
= os_snprintf(pos
, end
- pos
, " new_ssid=%s new_auth=%s "
1012 "new_encr=%s new_key=%s",
1013 settings
->ssid_hex
, settings
->auth
,
1014 settings
->encr
, settings
->key_hex
);
1015 if (res
< 0 || res
>= end
- pos
)
1019 res
= os_snprintf(pos
, end
- pos
, "\"");
1020 if (res
< 0 || res
>= end
- pos
)
1022 wpa_config_set(ssid
, "phase1", val
, 0);
1023 if (wpa_s
->wps_fragment_size
)
1024 ssid
->eap
.fragment_size
= wpa_s
->wps_fragment_size
;
1025 eloop_register_timeout(WPS_PBC_WALK_TIME
, 0, wpas_wps_timeout
,
1027 wpas_wps_reassoc(wpa_s
, ssid
, bssid
);
1032 static int wpas_wps_new_psk_cb(void *ctx
, const u8
*mac_addr
, const u8
*psk
,
1035 wpa_printf(MSG_DEBUG
, "WPS: Received new WPA/WPA2-PSK from WPS for "
1036 "STA " MACSTR
, MAC2STR(mac_addr
));
1037 wpa_hexdump_key(MSG_DEBUG
, "Per-device PSK", psk
, psk_len
);
1045 static void wpas_wps_pin_needed_cb(void *ctx
, const u8
*uuid_e
,
1046 const struct wps_device_data
*dev
)
1048 char uuid
[40], txt
[400];
1050 char devtype
[WPS_DEV_TYPE_BUFSIZE
];
1051 if (uuid_bin2str(uuid_e
, uuid
, sizeof(uuid
)))
1053 wpa_printf(MSG_DEBUG
, "WPS: PIN needed for UUID-E %s", uuid
);
1054 len
= os_snprintf(txt
, sizeof(txt
), "WPS-EVENT-PIN-NEEDED %s " MACSTR
1055 " [%s|%s|%s|%s|%s|%s]",
1056 uuid
, MAC2STR(dev
->mac_addr
), dev
->device_name
,
1057 dev
->manufacturer
, dev
->model_name
,
1058 dev
->model_number
, dev
->serial_number
,
1059 wps_dev_type_bin2str(dev
->pri_dev_type
, devtype
,
1061 if (len
> 0 && len
< (int) sizeof(txt
))
1062 wpa_printf(MSG_INFO
, "%s", txt
);
1066 static void wpas_wps_set_sel_reg_cb(void *ctx
, int sel_reg
, u16 dev_passwd_id
,
1067 u16 sel_reg_config_methods
)
1069 #ifdef CONFIG_WPS_ER
1070 struct wpa_supplicant
*wpa_s
= ctx
;
1072 if (wpa_s
->wps_er
== NULL
)
1074 wpa_printf(MSG_DEBUG
, "WPS ER: SetSelectedRegistrar - sel_reg=%d "
1075 "dev_password_id=%u sel_reg_config_methods=0x%x",
1076 sel_reg
, dev_passwd_id
, sel_reg_config_methods
);
1077 wps_er_set_sel_reg(wpa_s
->wps_er
, sel_reg
, dev_passwd_id
,
1078 sel_reg_config_methods
);
1079 #endif /* CONFIG_WPS_ER */
1083 static u16
wps_fix_config_methods(u16 config_methods
)
1086 if ((config_methods
&
1087 (WPS_CONFIG_DISPLAY
| WPS_CONFIG_VIRT_DISPLAY
|
1088 WPS_CONFIG_PHY_DISPLAY
)) == WPS_CONFIG_DISPLAY
) {
1089 wpa_printf(MSG_INFO
, "WPS: Converting display to "
1090 "virtual_display for WPS 2.0 compliance");
1091 config_methods
|= WPS_CONFIG_VIRT_DISPLAY
;
1093 if ((config_methods
&
1094 (WPS_CONFIG_PUSHBUTTON
| WPS_CONFIG_VIRT_PUSHBUTTON
|
1095 WPS_CONFIG_PHY_PUSHBUTTON
)) == WPS_CONFIG_PUSHBUTTON
) {
1096 wpa_printf(MSG_INFO
, "WPS: Converting push_button to "
1097 "virtual_push_button for WPS 2.0 compliance");
1098 config_methods
|= WPS_CONFIG_VIRT_PUSHBUTTON
;
1100 #endif /* CONFIG_WPS2 */
1102 return config_methods
;
1106 static void wpas_wps_set_uuid(struct wpa_supplicant
*wpa_s
,
1107 struct wps_context
*wps
)
1109 wpa_printf(MSG_DEBUG
, "WPS: Set UUID for interface %s", wpa_s
->ifname
);
1110 if (is_nil_uuid(wpa_s
->conf
->uuid
)) {
1111 struct wpa_supplicant
*first
;
1112 first
= wpa_s
->global
->ifaces
;
1113 while (first
&& first
->next
)
1114 first
= first
->next
;
1115 if (first
&& first
!= wpa_s
) {
1116 os_memcpy(wps
->uuid
, wpa_s
->global
->ifaces
->wps
->uuid
,
1118 wpa_hexdump(MSG_DEBUG
, "WPS: UUID from the first "
1119 "interface", wps
->uuid
, WPS_UUID_LEN
);
1121 uuid_gen_mac_addr(wpa_s
->own_addr
, wps
->uuid
);
1122 wpa_hexdump(MSG_DEBUG
, "WPS: UUID based on MAC "
1123 "address", wps
->uuid
, WPS_UUID_LEN
);
1126 os_memcpy(wps
->uuid
, wpa_s
->conf
->uuid
, WPS_UUID_LEN
);
1127 wpa_hexdump(MSG_DEBUG
, "WPS: UUID based on configuration",
1128 wps
->uuid
, WPS_UUID_LEN
);
1133 int wpas_wps_init(struct wpa_supplicant
*wpa_s
)
1135 struct wps_context
*wps
;
1136 struct wps_registrar_config rcfg
;
1137 struct hostapd_hw_modes
*modes
;
1140 wps
= os_zalloc(sizeof(*wps
));
1144 wps
->cred_cb
= wpa_supplicant_wps_cred
;
1145 wps
->event_cb
= wpa_supplicant_wps_event
;
1146 wps
->cb_ctx
= wpa_s
;
1148 wps
->dev
.device_name
= wpa_s
->conf
->device_name
;
1149 wps
->dev
.manufacturer
= wpa_s
->conf
->manufacturer
;
1150 wps
->dev
.model_name
= wpa_s
->conf
->model_name
;
1151 wps
->dev
.model_number
= wpa_s
->conf
->model_number
;
1152 wps
->dev
.serial_number
= wpa_s
->conf
->serial_number
;
1153 wps
->config_methods
=
1154 wps_config_methods_str2bin(wpa_s
->conf
->config_methods
);
1155 if ((wps
->config_methods
& (WPS_CONFIG_DISPLAY
| WPS_CONFIG_LABEL
)) ==
1156 (WPS_CONFIG_DISPLAY
| WPS_CONFIG_LABEL
)) {
1157 wpa_printf(MSG_ERROR
, "WPS: Both Label and Display config "
1158 "methods are not allowed at the same time");
1162 wps
->config_methods
= wps_fix_config_methods(wps
->config_methods
);
1163 wps
->dev
.config_methods
= wps
->config_methods
;
1164 os_memcpy(wps
->dev
.pri_dev_type
, wpa_s
->conf
->device_type
,
1167 wps
->dev
.num_sec_dev_types
= wpa_s
->conf
->num_sec_device_types
;
1168 os_memcpy(wps
->dev
.sec_dev_type
, wpa_s
->conf
->sec_device_type
,
1169 WPS_DEV_TYPE_LEN
* wps
->dev
.num_sec_dev_types
);
1171 wps
->dev
.os_version
= WPA_GET_BE32(wpa_s
->conf
->os_version
);
1172 modes
= wpa_s
->hw
.modes
;
1174 for (m
= 0; m
< wpa_s
->hw
.num_modes
; m
++) {
1175 if (modes
[m
].mode
== HOSTAPD_MODE_IEEE80211B
||
1176 modes
[m
].mode
== HOSTAPD_MODE_IEEE80211G
)
1177 wps
->dev
.rf_bands
|= WPS_RF_24GHZ
;
1178 else if (modes
[m
].mode
== HOSTAPD_MODE_IEEE80211A
)
1179 wps
->dev
.rf_bands
|= WPS_RF_50GHZ
;
1182 if (wps
->dev
.rf_bands
== 0) {
1184 * Default to claiming support for both bands if the driver
1185 * does not provide support for fetching supported bands.
1187 wps
->dev
.rf_bands
= WPS_RF_24GHZ
| WPS_RF_50GHZ
;
1189 os_memcpy(wps
->dev
.mac_addr
, wpa_s
->own_addr
, ETH_ALEN
);
1190 wpas_wps_set_uuid(wpa_s
, wps
);
1192 wps
->auth_types
= WPS_AUTH_WPA2PSK
| WPS_AUTH_WPAPSK
;
1193 wps
->encr_types
= WPS_ENCR_AES
| WPS_ENCR_TKIP
;
1195 os_memset(&rcfg
, 0, sizeof(rcfg
));
1196 rcfg
.new_psk_cb
= wpas_wps_new_psk_cb
;
1197 rcfg
.pin_needed_cb
= wpas_wps_pin_needed_cb
;
1198 rcfg
.set_sel_reg_cb
= wpas_wps_set_sel_reg_cb
;
1199 rcfg
.cb_ctx
= wpa_s
;
1201 wps
->registrar
= wps_registrar_init(wps
, &rcfg
);
1202 if (wps
->registrar
== NULL
) {
1203 wpa_printf(MSG_DEBUG
, "Failed to initialize WPS Registrar");
1214 void wpas_wps_deinit(struct wpa_supplicant
*wpa_s
)
1216 eloop_cancel_timeout(wpas_wps_timeout
, wpa_s
, NULL
);
1218 if (wpa_s
->wps
== NULL
)
1221 #ifdef CONFIG_WPS_ER
1222 wps_er_deinit(wpa_s
->wps_er
, NULL
, NULL
);
1223 wpa_s
->wps_er
= NULL
;
1224 #endif /* CONFIG_WPS_ER */
1226 wps_registrar_deinit(wpa_s
->wps
->registrar
);
1227 wpabuf_free(wpa_s
->wps
->dh_pubkey
);
1228 wpabuf_free(wpa_s
->wps
->dh_privkey
);
1229 wpabuf_free(wpa_s
->wps
->oob_conf
.pubkey_hash
);
1230 wpabuf_free(wpa_s
->wps
->oob_conf
.dev_password
);
1231 os_free(wpa_s
->wps
->network_key
);
1232 os_free(wpa_s
->wps
);
1237 int wpas_wps_ssid_bss_match(struct wpa_supplicant
*wpa_s
,
1238 struct wpa_ssid
*ssid
, struct wpa_scan_res
*bss
)
1240 struct wpabuf
*wps_ie
;
1242 if (!(ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
))
1245 wps_ie
= wpa_scan_get_vendor_ie_multi(bss
, WPS_IE_VENDOR_TYPE
);
1246 if (eap_is_wps_pbc_enrollee(&ssid
->eap
)) {
1248 wpa_printf(MSG_DEBUG
, " skip - non-WPS AP");
1252 if (!wps_is_selected_pbc_registrar(wps_ie
)) {
1253 wpa_printf(MSG_DEBUG
, " skip - WPS AP "
1254 "without active PBC Registrar");
1255 wpabuf_free(wps_ie
);
1259 /* TODO: overlap detection */
1260 wpa_printf(MSG_DEBUG
, " selected based on WPS IE "
1262 wpabuf_free(wps_ie
);
1266 if (eap_is_wps_pin_enrollee(&ssid
->eap
)) {
1268 wpa_printf(MSG_DEBUG
, " skip - non-WPS AP");
1273 * Start with WPS APs that advertise our address as an
1274 * authorized MAC (v2.0) or active PIN Registrar (v1.0) and
1275 * allow any WPS AP after couple of scans since some APs do not
1276 * set Selected Registrar attribute properly when using
1277 * external Registrar.
1279 if (!wps_is_addr_authorized(wps_ie
, wpa_s
->own_addr
, 1)) {
1280 if (wpa_s
->scan_runs
< WPS_PIN_SCAN_IGNORE_SEL_REG
) {
1281 wpa_printf(MSG_DEBUG
, " skip - WPS AP "
1282 "without active PIN Registrar");
1283 wpabuf_free(wps_ie
);
1286 wpa_printf(MSG_DEBUG
, " selected based on WPS IE");
1288 wpa_printf(MSG_DEBUG
, " selected based on WPS IE "
1289 "(Authorized MAC or Active PIN)");
1291 wpabuf_free(wps_ie
);
1296 wpa_printf(MSG_DEBUG
, " selected based on WPS IE");
1297 wpabuf_free(wps_ie
);
1305 int wpas_wps_ssid_wildcard_ok(struct wpa_supplicant
*wpa_s
,
1306 struct wpa_ssid
*ssid
,
1307 struct wpa_scan_res
*bss
)
1309 struct wpabuf
*wps_ie
= NULL
;
1312 if (eap_is_wps_pbc_enrollee(&ssid
->eap
)) {
1313 wps_ie
= wpa_scan_get_vendor_ie_multi(bss
, WPS_IE_VENDOR_TYPE
);
1314 if (wps_ie
&& wps_is_selected_pbc_registrar(wps_ie
)) {
1315 /* allow wildcard SSID for WPS PBC */
1318 } else if (eap_is_wps_pin_enrollee(&ssid
->eap
)) {
1319 wps_ie
= wpa_scan_get_vendor_ie_multi(bss
, WPS_IE_VENDOR_TYPE
);
1321 (wps_is_addr_authorized(wps_ie
, wpa_s
->own_addr
, 1) ||
1322 wpa_s
->scan_runs
>= WPS_PIN_SCAN_IGNORE_SEL_REG
)) {
1323 /* allow wildcard SSID for WPS PIN */
1328 if (!ret
&& ssid
->bssid_set
&&
1329 os_memcmp(ssid
->bssid
, bss
->bssid
, ETH_ALEN
) == 0) {
1330 /* allow wildcard SSID due to hardcoded BSSID match */
1334 #ifdef CONFIG_WPS_STRICT
1336 if (wps_validate_beacon_probe_resp(wps_ie
, bss
->beacon_ie_len
>
1339 if (bss
->beacon_ie_len
) {
1340 struct wpabuf
*bcn_wps
;
1341 bcn_wps
= wpa_scan_get_vendor_ie_multi_beacon(
1342 bss
, WPS_IE_VENDOR_TYPE
);
1343 if (bcn_wps
== NULL
) {
1344 wpa_printf(MSG_DEBUG
, "WPS: Mandatory WPS IE "
1345 "missing from AP Beacon");
1348 if (wps_validate_beacon(wps_ie
) < 0)
1350 wpabuf_free(bcn_wps
);
1354 #endif /* CONFIG_WPS_STRICT */
1356 wpabuf_free(wps_ie
);
1362 int wpas_wps_scan_pbc_overlap(struct wpa_supplicant
*wpa_s
,
1363 struct wpa_bss
*selected
, struct wpa_ssid
*ssid
)
1365 const u8
*sel_uuid
, *uuid
;
1366 struct wpabuf
*wps_ie
;
1368 struct wpa_bss
*bss
;
1370 if (!eap_is_wps_pbc_enrollee(&ssid
->eap
))
1373 wpa_printf(MSG_DEBUG
, "WPS: Check whether PBC session overlap is "
1374 "present in scan results; selected BSSID " MACSTR
,
1375 MAC2STR(selected
->bssid
));
1377 /* Make sure that only one AP is in active PBC mode */
1378 wps_ie
= wpa_bss_get_vendor_ie_multi(selected
, WPS_IE_VENDOR_TYPE
);
1380 sel_uuid
= wps_get_uuid_e(wps_ie
);
1381 wpa_hexdump(MSG_DEBUG
, "WPS: UUID of the selected BSS",
1382 sel_uuid
, UUID_LEN
);
1384 wpa_printf(MSG_DEBUG
, "WPS: Selected BSS does not include "
1389 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
1391 if (bss
== selected
)
1393 ie
= wpa_bss_get_vendor_ie_multi(bss
, WPS_IE_VENDOR_TYPE
);
1396 if (!wps_is_selected_pbc_registrar(ie
)) {
1400 wpa_printf(MSG_DEBUG
, "WPS: Another BSS in active PBC mode: "
1401 MACSTR
, MAC2STR(bss
->bssid
));
1402 uuid
= wps_get_uuid_e(ie
);
1403 wpa_hexdump(MSG_DEBUG
, "WPS: UUID of the other BSS",
1405 if (sel_uuid
== NULL
|| uuid
== NULL
||
1406 os_memcmp(sel_uuid
, uuid
, UUID_LEN
) != 0) {
1407 ret
= 1; /* PBC overlap */
1408 wpa_msg(wpa_s
, MSG_INFO
, "WPS: PBC overlap detected: "
1409 MACSTR
" and " MACSTR
,
1410 MAC2STR(selected
->bssid
),
1411 MAC2STR(bss
->bssid
));
1416 /* TODO: verify that this is reasonable dual-band situation */
1421 wpabuf_free(wps_ie
);
1427 void wpas_wps_notify_scan_results(struct wpa_supplicant
*wpa_s
)
1429 struct wpa_bss
*bss
;
1430 unsigned int pbc
= 0, auth
= 0, pin
= 0, wps
= 0;
1432 if (wpa_s
->disconnected
|| wpa_s
->wpa_state
>= WPA_ASSOCIATED
)
1435 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
1437 ie
= wpa_bss_get_vendor_ie_multi(bss
, WPS_IE_VENDOR_TYPE
);
1440 if (wps_is_selected_pbc_registrar(ie
))
1442 else if (wps_is_addr_authorized(ie
, wpa_s
->own_addr
, 0))
1444 else if (wps_is_selected_pin_registrar(ie
))
1452 wpa_msg_ctrl(wpa_s
, MSG_INFO
, WPS_EVENT_AP_AVAILABLE_PBC
);
1454 wpa_msg_ctrl(wpa_s
, MSG_INFO
, WPS_EVENT_AP_AVAILABLE_AUTH
);
1456 wpa_msg_ctrl(wpa_s
, MSG_INFO
, WPS_EVENT_AP_AVAILABLE_PIN
);
1458 wpa_msg_ctrl(wpa_s
, MSG_INFO
, WPS_EVENT_AP_AVAILABLE
);
1462 int wpas_wps_searching(struct wpa_supplicant
*wpa_s
)
1464 struct wpa_ssid
*ssid
;
1466 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
) {
1467 if ((ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
) && !ssid
->disabled
)
1475 int wpas_wps_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
,
1478 struct wpabuf
*wps_ie
;
1481 wps_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
, WPS_DEV_OUI_WFA
);
1485 ret
= wps_attr_text(wps_ie
, buf
, end
);
1486 wpabuf_free(wps_ie
);
1491 int wpas_wps_er_start(struct wpa_supplicant
*wpa_s
, const char *filter
)
1493 #ifdef CONFIG_WPS_ER
1494 if (wpa_s
->wps_er
) {
1495 wps_er_refresh(wpa_s
->wps_er
);
1498 wpa_s
->wps_er
= wps_er_init(wpa_s
->wps
, wpa_s
->ifname
, filter
);
1499 if (wpa_s
->wps_er
== NULL
)
1502 #else /* CONFIG_WPS_ER */
1504 #endif /* CONFIG_WPS_ER */
1508 int wpas_wps_er_stop(struct wpa_supplicant
*wpa_s
)
1510 #ifdef CONFIG_WPS_ER
1511 wps_er_deinit(wpa_s
->wps_er
, NULL
, NULL
);
1512 wpa_s
->wps_er
= NULL
;
1513 #endif /* CONFIG_WPS_ER */
1518 #ifdef CONFIG_WPS_ER
1519 int wpas_wps_er_add_pin(struct wpa_supplicant
*wpa_s
, const u8
*addr
,
1520 const char *uuid
, const char *pin
)
1525 if (os_strcmp(uuid
, "any") == 0)
1527 else if (uuid_str2bin(uuid
, u
))
1529 return wps_registrar_add_pin(wpa_s
->wps
->registrar
, addr
,
1531 (const u8
*) pin
, os_strlen(pin
), 300);
1535 int wpas_wps_er_pbc(struct wpa_supplicant
*wpa_s
, const char *uuid
)
1539 if (uuid_str2bin(uuid
, u
))
1541 return wps_er_pbc(wpa_s
->wps_er
, u
);
1545 int wpas_wps_er_learn(struct wpa_supplicant
*wpa_s
, const char *uuid
,
1550 if (uuid_str2bin(uuid
, u
))
1552 return wps_er_learn(wpa_s
->wps_er
, u
, (const u8
*) pin
,
1557 int wpas_wps_er_set_config(struct wpa_supplicant
*wpa_s
, const char *uuid
,
1561 struct wpa_ssid
*ssid
;
1562 struct wps_credential cred
;
1564 if (uuid_str2bin(uuid
, u
))
1566 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
1567 if (ssid
== NULL
|| ssid
->ssid
== NULL
)
1570 os_memset(&cred
, 0, sizeof(cred
));
1571 if (ssid
->ssid_len
> 32)
1573 os_memcpy(cred
.ssid
, ssid
->ssid
, ssid
->ssid_len
);
1574 cred
.ssid_len
= ssid
->ssid_len
;
1575 if (ssid
->key_mgmt
& WPA_KEY_MGMT_PSK
) {
1576 cred
.auth_type
= (ssid
->proto
& WPA_PROTO_RSN
) ?
1577 WPS_AUTH_WPA2PSK
: WPS_AUTH_WPAPSK
;
1578 if (ssid
->pairwise_cipher
& WPA_CIPHER_CCMP
)
1579 cred
.encr_type
= WPS_ENCR_AES
;
1581 cred
.encr_type
= WPS_ENCR_TKIP
;
1582 if (ssid
->passphrase
) {
1583 cred
.key_len
= os_strlen(ssid
->passphrase
);
1584 if (cred
.key_len
>= 64)
1586 os_memcpy(cred
.key
, ssid
->passphrase
, cred
.key_len
);
1587 } else if (ssid
->psk_set
) {
1589 os_memcpy(cred
.key
, ssid
->psk
, 32);
1593 cred
.auth_type
= WPS_AUTH_OPEN
;
1594 cred
.encr_type
= WPS_ENCR_NONE
;
1596 return wps_er_set_config(wpa_s
->wps_er
, u
, &cred
);
1600 int wpas_wps_er_config(struct wpa_supplicant
*wpa_s
, const char *uuid
,
1601 const char *pin
, struct wps_new_ap_settings
*settings
)
1604 struct wps_credential cred
;
1607 if (uuid_str2bin(uuid
, u
))
1609 if (settings
->ssid_hex
== NULL
|| settings
->auth
== NULL
||
1610 settings
->encr
== NULL
|| settings
->key_hex
== NULL
)
1613 os_memset(&cred
, 0, sizeof(cred
));
1614 len
= os_strlen(settings
->ssid_hex
);
1615 if ((len
& 1) || len
> 2 * sizeof(cred
.ssid
) ||
1616 hexstr2bin(settings
->ssid_hex
, cred
.ssid
, len
/ 2))
1618 cred
.ssid_len
= len
/ 2;
1620 len
= os_strlen(settings
->key_hex
);
1621 if ((len
& 1) || len
> 2 * sizeof(cred
.key
) ||
1622 hexstr2bin(settings
->key_hex
, cred
.key
, len
/ 2))
1624 cred
.key_len
= len
/ 2;
1626 if (os_strcmp(settings
->auth
, "OPEN") == 0)
1627 cred
.auth_type
= WPS_AUTH_OPEN
;
1628 else if (os_strcmp(settings
->auth
, "WPAPSK") == 0)
1629 cred
.auth_type
= WPS_AUTH_WPAPSK
;
1630 else if (os_strcmp(settings
->auth
, "WPA2PSK") == 0)
1631 cred
.auth_type
= WPS_AUTH_WPA2PSK
;
1635 if (os_strcmp(settings
->encr
, "NONE") == 0)
1636 cred
.encr_type
= WPS_ENCR_NONE
;
1637 else if (os_strcmp(settings
->encr
, "WEP") == 0)
1638 cred
.encr_type
= WPS_ENCR_WEP
;
1639 else if (os_strcmp(settings
->encr
, "TKIP") == 0)
1640 cred
.encr_type
= WPS_ENCR_TKIP
;
1641 else if (os_strcmp(settings
->encr
, "CCMP") == 0)
1642 cred
.encr_type
= WPS_ENCR_AES
;
1646 return wps_er_config(wpa_s
->wps_er
, u
, (const u8
*) pin
,
1647 os_strlen(pin
), &cred
);
1651 static int callbacks_pending
= 0;
1653 static void wpas_wps_terminate_cb(void *ctx
)
1655 wpa_printf(MSG_DEBUG
, "WPS ER: Terminated");
1656 if (--callbacks_pending
<= 0)
1659 #endif /* CONFIG_WPS_ER */
1662 int wpas_wps_terminate_pending(struct wpa_supplicant
*wpa_s
)
1664 #ifdef CONFIG_WPS_ER
1665 if (wpa_s
->wps_er
) {
1666 callbacks_pending
++;
1667 wps_er_deinit(wpa_s
->wps_er
, wpas_wps_terminate_cb
, wpa_s
);
1668 wpa_s
->wps_er
= NULL
;
1671 #endif /* CONFIG_WPS_ER */
1676 int wpas_wps_in_progress(struct wpa_supplicant
*wpa_s
)
1678 struct wpa_ssid
*ssid
;
1680 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
) {
1681 if (!ssid
->disabled
&& ssid
->key_mgmt
== WPA_KEY_MGMT_WPS
)
1689 void wpas_wps_update_config(struct wpa_supplicant
*wpa_s
)
1691 struct wps_context
*wps
= wpa_s
->wps
;
1696 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_CONFIG_METHODS
) {
1697 wps
->config_methods
= wps_config_methods_str2bin(
1698 wpa_s
->conf
->config_methods
);
1699 if ((wps
->config_methods
&
1700 (WPS_CONFIG_DISPLAY
| WPS_CONFIG_LABEL
)) ==
1701 (WPS_CONFIG_DISPLAY
| WPS_CONFIG_LABEL
)) {
1702 wpa_printf(MSG_ERROR
, "WPS: Both Label and Display "
1703 "config methods are not allowed at the "
1705 wps
->config_methods
&= ~WPS_CONFIG_LABEL
;
1708 wps
->config_methods
= wps_fix_config_methods(wps
->config_methods
);
1710 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_DEVICE_TYPE
)
1711 os_memcpy(wps
->dev
.pri_dev_type
, wpa_s
->conf
->device_type
,
1714 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_SEC_DEVICE_TYPE
) {
1715 wps
->dev
.num_sec_dev_types
= wpa_s
->conf
->num_sec_device_types
;
1716 os_memcpy(wps
->dev
.sec_dev_type
, wpa_s
->conf
->sec_device_type
,
1717 wps
->dev
.num_sec_dev_types
* WPS_DEV_TYPE_LEN
);
1720 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_OS_VERSION
)
1721 wps
->dev
.os_version
= WPA_GET_BE32(wpa_s
->conf
->os_version
);
1723 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_UUID
)
1724 wpas_wps_set_uuid(wpa_s
, wps
);
1726 if (wpa_s
->conf
->changed_parameters
&
1727 (CFG_CHANGED_DEVICE_NAME
| CFG_CHANGED_WPS_STRING
)) {
1728 /* Update pointers to make sure they refer current values */
1729 wps
->dev
.device_name
= wpa_s
->conf
->device_name
;
1730 wps
->dev
.manufacturer
= wpa_s
->conf
->manufacturer
;
1731 wps
->dev
.model_name
= wpa_s
->conf
->model_name
;
1732 wps
->dev
.model_number
= wpa_s
->conf
->model_number
;
1733 wps
->dev
.serial_number
= wpa_s
->conf
->serial_number
;