3 * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
8 * This file implements functions for registering and unregistering
9 * %wpa_supplicant interfaces. In addition, this file contains number of
10 * functions for managing network connections.
16 #include "crypto/random.h"
17 #include "crypto/sha1.h"
18 #include "eapol_supp/eapol_supp_sm.h"
19 #include "eap_peer/eap.h"
20 #include "eap_peer/eap_proxy.h"
21 #include "eap_server/eap_methods.h"
22 #include "rsn_supp/wpa.h"
25 #include "utils/ext_password.h"
26 #include "l2_packet/l2_packet.h"
27 #include "wpa_supplicant_i.h"
29 #include "ctrl_iface.h"
30 #include "pcsc_funcs.h"
31 #include "common/version.h"
32 #include "rsn_supp/preauth.h"
33 #include "rsn_supp/pmksa_cache.h"
34 #include "common/wpa_ctrl.h"
35 #include "common/ieee802_11_defs.h"
36 #include "common/hw_features_common.h"
38 #include "blacklist.h"
39 #include "wpas_glue.h"
40 #include "wps_supplicant.h"
43 #include "gas_query.h"
45 #include "p2p_supplicant.h"
46 #include "wifi_display.h"
52 #include "offchannel.h"
53 #include "hs20_supplicant.h"
58 const char *wpa_supplicant_version
=
59 "wpa_supplicant v" VERSION_STR
"\n"
60 "Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi> and contributors";
62 const char *wpa_supplicant_license
=
63 "This software may be distributed under the terms of the BSD license.\n"
64 "See README for more details.\n"
65 #ifdef EAP_TLS_OPENSSL
66 "\nThis product includes software developed by the OpenSSL Project\n"
67 "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n"
68 #endif /* EAP_TLS_OPENSSL */
71 #ifndef CONFIG_NO_STDOUT_DEBUG
72 /* Long text divided into parts in order to fit in C89 strings size limits. */
73 const char *wpa_supplicant_full_license1
=
75 const char *wpa_supplicant_full_license2
=
76 "This software may be distributed under the terms of the BSD license.\n"
78 "Redistribution and use in source and binary forms, with or without\n"
79 "modification, are permitted provided that the following conditions are\n"
82 const char *wpa_supplicant_full_license3
=
83 "1. Redistributions of source code must retain the above copyright\n"
84 " notice, this list of conditions and the following disclaimer.\n"
86 "2. Redistributions in binary form must reproduce the above copyright\n"
87 " notice, this list of conditions and the following disclaimer in the\n"
88 " documentation and/or other materials provided with the distribution.\n"
90 const char *wpa_supplicant_full_license4
=
91 "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n"
92 " names of its contributors may be used to endorse or promote products\n"
93 " derived from this software without specific prior written permission.\n"
95 "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"
96 "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"
97 "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"
98 "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n";
99 const char *wpa_supplicant_full_license5
=
100 "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"
101 "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"
102 "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"
103 "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"
104 "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
105 "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"
106 "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
108 #endif /* CONFIG_NO_STDOUT_DEBUG */
110 /* Configure default/group WEP keys for static WEP */
111 int wpa_set_wep_keys(struct wpa_supplicant
*wpa_s
, struct wpa_ssid
*ssid
)
115 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
116 if (ssid
->wep_key_len
[i
] == 0)
120 wpa_drv_set_key(wpa_s
, WPA_ALG_WEP
, NULL
,
121 i
, i
== ssid
->wep_tx_keyidx
, NULL
, 0,
122 ssid
->wep_key
[i
], ssid
->wep_key_len
[i
]);
129 int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant
*wpa_s
,
130 struct wpa_ssid
*ssid
)
138 /* IBSS/WPA-None uses only one key (Group) for both receiving and
139 * sending unicast and multicast packets. */
141 if (ssid
->mode
!= WPAS_MODE_IBSS
) {
142 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Invalid mode %d (not "
143 "IBSS/ad-hoc) for WPA-None", ssid
->mode
);
147 if (!ssid
->psk_set
) {
148 wpa_msg(wpa_s
, MSG_INFO
, "WPA: No PSK configured for "
153 switch (wpa_s
->group_cipher
) {
154 case WPA_CIPHER_CCMP
:
155 os_memcpy(key
, ssid
->psk
, 16);
159 case WPA_CIPHER_GCMP
:
160 os_memcpy(key
, ssid
->psk
, 16);
164 case WPA_CIPHER_TKIP
:
165 /* WPA-None uses the same Michael MIC key for both TX and RX */
166 os_memcpy(key
, ssid
->psk
, 16 + 8);
167 os_memcpy(key
+ 16 + 8, ssid
->psk
+ 16, 8);
172 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Invalid group cipher %d for "
173 "WPA-None", wpa_s
->group_cipher
);
177 /* TODO: should actually remember the previously used seq#, both for TX
178 * and RX from each STA.. */
180 ret
= wpa_drv_set_key(wpa_s
, alg
, NULL
, 0, 1, seq
, 6, key
, keylen
);
181 os_memset(key
, 0, sizeof(key
));
186 static void wpa_supplicant_timeout(void *eloop_ctx
, void *timeout_ctx
)
188 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
189 const u8
*bssid
= wpa_s
->bssid
;
190 if (is_zero_ether_addr(bssid
))
191 bssid
= wpa_s
->pending_bssid
;
192 wpa_msg(wpa_s
, MSG_INFO
, "Authentication with " MACSTR
" timed out.",
194 wpa_blacklist_add(wpa_s
, bssid
);
195 wpa_sm_notify_disassoc(wpa_s
->wpa
);
196 wpa_supplicant_deauthenticate(wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
197 wpa_s
->reassociate
= 1;
200 * If we timed out, the AP or the local radio may be busy.
201 * So, wait a second until scanning again.
203 wpa_supplicant_req_scan(wpa_s
, 1, 0);
208 * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication
209 * @wpa_s: Pointer to wpa_supplicant data
210 * @sec: Number of seconds after which to time out authentication
211 * @usec: Number of microseconds after which to time out authentication
213 * This function is used to schedule a timeout for the current authentication
216 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant
*wpa_s
,
219 if (wpa_s
->conf
->ap_scan
== 0 &&
220 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_WIRED
))
223 wpa_dbg(wpa_s
, MSG_DEBUG
, "Setting authentication timeout: %d sec "
224 "%d usec", sec
, usec
);
225 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
, NULL
);
226 eloop_register_timeout(sec
, usec
, wpa_supplicant_timeout
, wpa_s
, NULL
);
231 * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout
232 * @wpa_s: Pointer to wpa_supplicant data
234 * This function is used to cancel authentication timeout scheduled with
235 * wpa_supplicant_req_auth_timeout() and it is called when authentication has
238 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant
*wpa_s
)
240 wpa_dbg(wpa_s
, MSG_DEBUG
, "Cancelling authentication timeout");
241 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
, NULL
);
242 wpa_blacklist_del(wpa_s
, wpa_s
->bssid
);
247 * wpa_supplicant_initiate_eapol - Configure EAPOL state machine
248 * @wpa_s: Pointer to wpa_supplicant data
250 * This function is used to configure EAPOL state machine based on the selected
251 * authentication mode.
253 void wpa_supplicant_initiate_eapol(struct wpa_supplicant
*wpa_s
)
255 #ifdef IEEE8021X_EAPOL
256 struct eapol_config eapol_conf
;
257 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
259 #ifdef CONFIG_IBSS_RSN
260 if (ssid
->mode
== WPAS_MODE_IBSS
&&
261 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_NONE
&&
262 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_WPA_NONE
) {
264 * RSN IBSS authentication is per-STA and we can disable the
265 * per-BSSID EAPOL authentication.
267 eapol_sm_notify_portControl(wpa_s
->eapol
, ForceAuthorized
);
268 eapol_sm_notify_eap_success(wpa_s
->eapol
, TRUE
);
269 eapol_sm_notify_eap_fail(wpa_s
->eapol
, FALSE
);
272 #endif /* CONFIG_IBSS_RSN */
274 eapol_sm_notify_eap_success(wpa_s
->eapol
, FALSE
);
275 eapol_sm_notify_eap_fail(wpa_s
->eapol
, FALSE
);
277 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_NONE
||
278 wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPA_NONE
)
279 eapol_sm_notify_portControl(wpa_s
->eapol
, ForceAuthorized
);
281 eapol_sm_notify_portControl(wpa_s
->eapol
, Auto
);
283 os_memset(&eapol_conf
, 0, sizeof(eapol_conf
));
284 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
285 eapol_conf
.accept_802_1x_keys
= 1;
286 eapol_conf
.required_keys
= 0;
287 if (ssid
->eapol_flags
& EAPOL_FLAG_REQUIRE_KEY_UNICAST
) {
288 eapol_conf
.required_keys
|= EAPOL_REQUIRE_KEY_UNICAST
;
290 if (ssid
->eapol_flags
& EAPOL_FLAG_REQUIRE_KEY_BROADCAST
) {
291 eapol_conf
.required_keys
|=
292 EAPOL_REQUIRE_KEY_BROADCAST
;
295 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_WIRED
)
296 eapol_conf
.required_keys
= 0;
298 eapol_conf
.fast_reauth
= wpa_s
->conf
->fast_reauth
;
299 eapol_conf
.workaround
= ssid
->eap_workaround
;
300 eapol_conf
.eap_disabled
=
301 !wpa_key_mgmt_wpa_ieee8021x(wpa_s
->key_mgmt
) &&
302 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_IEEE8021X_NO_WPA
&&
303 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_WPS
;
304 eapol_conf
.external_sim
= wpa_s
->conf
->external_sim
;
307 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPS
) {
308 eapol_conf
.wps
|= EAPOL_LOCAL_WPS_IN_USE
;
309 if (wpa_s
->current_bss
) {
311 ie
= wpa_bss_get_vendor_ie_multi(wpa_s
->current_bss
,
316 EAPOL_PEER_IS_WPS20_AP
;
321 #endif /* CONFIG_WPS */
323 eapol_sm_notify_config(wpa_s
->eapol
, &ssid
->eap
, &eapol_conf
);
325 ieee802_1x_alloc_kay_sm(wpa_s
, ssid
);
326 #endif /* IEEE8021X_EAPOL */
331 * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode
332 * @wpa_s: Pointer to wpa_supplicant data
333 * @ssid: Configuration data for the network
335 * This function is used to configure WPA state machine and related parameters
336 * to a mode where WPA is not enabled. This is called as part of the
337 * authentication configuration when the selected network does not use WPA.
339 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant
*wpa_s
,
340 struct wpa_ssid
*ssid
)
344 if (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
)
345 wpa_s
->key_mgmt
= WPA_KEY_MGMT_WPS
;
346 else if (ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_NO_WPA
)
347 wpa_s
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X_NO_WPA
;
349 wpa_s
->key_mgmt
= WPA_KEY_MGMT_NONE
;
350 wpa_sm_set_ap_wpa_ie(wpa_s
->wpa
, NULL
, 0);
351 wpa_sm_set_ap_rsn_ie(wpa_s
->wpa
, NULL
, 0);
352 wpa_sm_set_assoc_wpa_ie(wpa_s
->wpa
, NULL
, 0);
353 wpa_s
->pairwise_cipher
= WPA_CIPHER_NONE
;
354 wpa_s
->group_cipher
= WPA_CIPHER_NONE
;
355 wpa_s
->mgmt_group_cipher
= 0;
357 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
358 if (ssid
->wep_key_len
[i
] > 5) {
359 wpa_s
->pairwise_cipher
= WPA_CIPHER_WEP104
;
360 wpa_s
->group_cipher
= WPA_CIPHER_WEP104
;
362 } else if (ssid
->wep_key_len
[i
] > 0) {
363 wpa_s
->pairwise_cipher
= WPA_CIPHER_WEP40
;
364 wpa_s
->group_cipher
= WPA_CIPHER_WEP40
;
369 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_RSN_ENABLED
, 0);
370 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_KEY_MGMT
, wpa_s
->key_mgmt
);
371 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_PAIRWISE
,
372 wpa_s
->pairwise_cipher
);
373 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_GROUP
, wpa_s
->group_cipher
);
374 #ifdef CONFIG_IEEE80211W
375 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_MGMT_GROUP
,
376 wpa_s
->mgmt_group_cipher
);
377 #endif /* CONFIG_IEEE80211W */
379 pmksa_cache_clear_current(wpa_s
->wpa
);
383 void free_hw_features(struct wpa_supplicant
*wpa_s
)
386 if (wpa_s
->hw
.modes
== NULL
)
389 for (i
= 0; i
< wpa_s
->hw
.num_modes
; i
++) {
390 os_free(wpa_s
->hw
.modes
[i
].channels
);
391 os_free(wpa_s
->hw
.modes
[i
].rates
);
394 os_free(wpa_s
->hw
.modes
);
395 wpa_s
->hw
.modes
= NULL
;
399 static void wpa_supplicant_cleanup(struct wpa_supplicant
*wpa_s
)
403 bgscan_deinit(wpa_s
);
404 autoscan_deinit(wpa_s
);
405 scard_deinit(wpa_s
->scard
);
407 wpa_sm_set_scard_ctx(wpa_s
->wpa
, NULL
);
408 eapol_sm_register_scard_ctx(wpa_s
->eapol
, NULL
);
409 l2_packet_deinit(wpa_s
->l2
);
412 l2_packet_deinit(wpa_s
->l2_br
);
415 #ifdef CONFIG_TESTING_OPTIONS
416 l2_packet_deinit(wpa_s
->l2_test
);
417 wpa_s
->l2_test
= NULL
;
418 #endif /* CONFIG_TESTING_OPTIONS */
420 if (wpa_s
->conf
!= NULL
) {
421 struct wpa_ssid
*ssid
;
422 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
)
423 wpas_notify_network_removed(wpa_s
, ssid
);
426 os_free(wpa_s
->confname
);
427 wpa_s
->confname
= NULL
;
429 os_free(wpa_s
->confanother
);
430 wpa_s
->confanother
= NULL
;
432 wpa_sm_set_eapol(wpa_s
->wpa
, NULL
);
433 eapol_sm_deinit(wpa_s
->eapol
);
436 rsn_preauth_deinit(wpa_s
->wpa
);
439 wpa_tdls_deinit(wpa_s
->wpa
);
440 #endif /* CONFIG_TDLS */
442 wmm_ac_clear_saved_tspecs(wpa_s
);
443 pmksa_candidate_free(wpa_s
->wpa
);
444 wpa_sm_deinit(wpa_s
->wpa
);
446 wpa_blacklist_clear(wpa_s
);
448 wpa_bss_deinit(wpa_s
);
450 wpa_supplicant_cancel_delayed_sched_scan(wpa_s
);
451 wpa_supplicant_cancel_scan(wpa_s
);
452 wpa_supplicant_cancel_auth_timeout(wpa_s
);
453 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures
, wpa_s
, NULL
);
454 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
455 eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report
,
457 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
459 wpas_wps_deinit(wpa_s
);
461 wpabuf_free(wpa_s
->pending_eapol_rx
);
462 wpa_s
->pending_eapol_rx
= NULL
;
464 #ifdef CONFIG_IBSS_RSN
465 ibss_rsn_deinit(wpa_s
->ibss_rsn
);
466 wpa_s
->ibss_rsn
= NULL
;
467 #endif /* CONFIG_IBSS_RSN */
472 wpa_supplicant_ap_deinit(wpa_s
);
473 #endif /* CONFIG_AP */
475 wpas_p2p_deinit(wpa_s
);
477 #ifdef CONFIG_OFFCHANNEL
478 offchannel_deinit(wpa_s
);
479 #endif /* CONFIG_OFFCHANNEL */
481 wpa_supplicant_cancel_sched_scan(wpa_s
);
483 os_free(wpa_s
->next_scan_freqs
);
484 wpa_s
->next_scan_freqs
= NULL
;
486 os_free(wpa_s
->manual_scan_freqs
);
487 wpa_s
->manual_scan_freqs
= NULL
;
489 os_free(wpa_s
->manual_sched_scan_freqs
);
490 wpa_s
->manual_sched_scan_freqs
= NULL
;
492 wpas_mac_addr_rand_scan_clear(wpa_s
, MAC_ADDR_RAND_ALL
);
494 gas_query_deinit(wpa_s
->gas
);
497 free_hw_features(wpa_s
);
499 ieee802_1x_dealloc_kay_sm(wpa_s
);
501 os_free(wpa_s
->bssid_filter
);
502 wpa_s
->bssid_filter
= NULL
;
504 os_free(wpa_s
->disallow_aps_bssid
);
505 wpa_s
->disallow_aps_bssid
= NULL
;
506 os_free(wpa_s
->disallow_aps_ssid
);
507 wpa_s
->disallow_aps_ssid
= NULL
;
509 wnm_bss_keep_alive_deinit(wpa_s
);
511 wnm_deallocate_memory(wpa_s
);
512 #endif /* CONFIG_WNM */
514 ext_password_deinit(wpa_s
->ext_pw
);
515 wpa_s
->ext_pw
= NULL
;
517 wpabuf_free(wpa_s
->last_gas_resp
);
518 wpa_s
->last_gas_resp
= NULL
;
519 wpabuf_free(wpa_s
->prev_gas_resp
);
520 wpa_s
->prev_gas_resp
= NULL
;
522 os_free(wpa_s
->last_scan_res
);
523 wpa_s
->last_scan_res
= NULL
;
527 #endif /* CONFIG_HS20 */
529 for (i
= 0; i
< NUM_VENDOR_ELEM_FRAMES
; i
++) {
530 wpabuf_free(wpa_s
->vendor_elem
[i
]);
531 wpa_s
->vendor_elem
[i
] = NULL
;
534 wmm_ac_notify_disassoc(wpa_s
);
539 * wpa_clear_keys - Clear keys configured for the driver
540 * @wpa_s: Pointer to wpa_supplicant data
541 * @addr: Previously used BSSID or %NULL if not available
543 * This function clears the encryption keys that has been previously configured
546 void wpa_clear_keys(struct wpa_supplicant
*wpa_s
, const u8
*addr
)
550 #ifdef CONFIG_IEEE80211W
552 #else /* CONFIG_IEEE80211W */
554 #endif /* CONFIG_IEEE80211W */
556 /* MLME-DELETEKEYS.request */
557 for (i
= 0; i
< max
; i
++) {
558 if (wpa_s
->keys_cleared
& BIT(i
))
560 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, NULL
, i
, 0, NULL
, 0,
563 if (!(wpa_s
->keys_cleared
& BIT(0)) && addr
&&
564 !is_zero_ether_addr(addr
)) {
565 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, addr
, 0, 0, NULL
, 0, NULL
,
567 /* MLME-SETPROTECTION.request(None) */
568 wpa_drv_mlme_setprotection(
570 MLME_SETPROTECTION_PROTECT_TYPE_NONE
,
571 MLME_SETPROTECTION_KEY_TYPE_PAIRWISE
);
573 wpa_s
->keys_cleared
= (u32
) -1;
578 * wpa_supplicant_state_txt - Get the connection state name as a text string
579 * @state: State (wpa_state; WPA_*)
580 * Returns: The state name as a printable text string
582 const char * wpa_supplicant_state_txt(enum wpa_states state
)
585 case WPA_DISCONNECTED
:
586 return "DISCONNECTED";
589 case WPA_INTERFACE_DISABLED
:
590 return "INTERFACE_DISABLED";
593 case WPA_AUTHENTICATING
:
594 return "AUTHENTICATING";
595 case WPA_ASSOCIATING
:
596 return "ASSOCIATING";
599 case WPA_4WAY_HANDSHAKE
:
600 return "4WAY_HANDSHAKE";
601 case WPA_GROUP_HANDSHAKE
:
602 return "GROUP_HANDSHAKE";
613 static void wpa_supplicant_start_bgscan(struct wpa_supplicant
*wpa_s
)
617 if (wpa_s
->current_ssid
&& wpa_s
->current_ssid
->bgscan
)
618 name
= wpa_s
->current_ssid
->bgscan
;
620 name
= wpa_s
->conf
->bgscan
;
621 if (name
== NULL
|| name
[0] == '\0')
623 if (wpas_driver_bss_selection(wpa_s
))
625 if (wpa_s
->current_ssid
== wpa_s
->bgscan_ssid
)
628 if (wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
)
630 #endif /* CONFIG_P2P */
632 bgscan_deinit(wpa_s
);
633 if (wpa_s
->current_ssid
) {
634 if (bgscan_init(wpa_s
, wpa_s
->current_ssid
, name
)) {
635 wpa_dbg(wpa_s
, MSG_DEBUG
, "Failed to initialize "
638 * Live without bgscan; it is only used as a roaming
639 * optimization, so the initial connection is not
643 struct wpa_scan_results
*scan_res
;
644 wpa_s
->bgscan_ssid
= wpa_s
->current_ssid
;
645 scan_res
= wpa_supplicant_get_scan_results(wpa_s
, NULL
,
648 bgscan_notify_scan(wpa_s
, scan_res
);
649 wpa_scan_results_free(scan_res
);
653 wpa_s
->bgscan_ssid
= NULL
;
657 static void wpa_supplicant_stop_bgscan(struct wpa_supplicant
*wpa_s
)
659 if (wpa_s
->bgscan_ssid
!= NULL
) {
660 bgscan_deinit(wpa_s
);
661 wpa_s
->bgscan_ssid
= NULL
;
665 #endif /* CONFIG_BGSCAN */
668 static void wpa_supplicant_start_autoscan(struct wpa_supplicant
*wpa_s
)
670 if (autoscan_init(wpa_s
, 0))
671 wpa_dbg(wpa_s
, MSG_DEBUG
, "Failed to initialize autoscan");
675 static void wpa_supplicant_stop_autoscan(struct wpa_supplicant
*wpa_s
)
677 autoscan_deinit(wpa_s
);
681 void wpa_supplicant_reinit_autoscan(struct wpa_supplicant
*wpa_s
)
683 if (wpa_s
->wpa_state
== WPA_DISCONNECTED
||
684 wpa_s
->wpa_state
== WPA_SCANNING
) {
685 autoscan_deinit(wpa_s
);
686 wpa_supplicant_start_autoscan(wpa_s
);
692 * wpa_supplicant_set_state - Set current connection state
693 * @wpa_s: Pointer to wpa_supplicant data
694 * @state: The new connection state
696 * This function is called whenever the connection state changes, e.g.,
697 * association is completed for WPA/WPA2 4-Way Handshake is started.
699 void wpa_supplicant_set_state(struct wpa_supplicant
*wpa_s
,
700 enum wpa_states state
)
702 enum wpa_states old_state
= wpa_s
->wpa_state
;
704 wpa_dbg(wpa_s
, MSG_DEBUG
, "State: %s -> %s",
705 wpa_supplicant_state_txt(wpa_s
->wpa_state
),
706 wpa_supplicant_state_txt(state
));
708 if (state
== WPA_INTERFACE_DISABLED
) {
709 /* Assure normal scan when interface is restored */
710 wpa_s
->normal_scans
= 0;
713 if (state
== WPA_COMPLETED
) {
714 wpas_connect_work_done(wpa_s
);
715 /* Reinitialize normal_scan counter */
716 wpa_s
->normal_scans
= 0;
719 if (state
!= WPA_SCANNING
)
720 wpa_supplicant_notify_scanning(wpa_s
, 0);
722 if (state
== WPA_COMPLETED
&& wpa_s
->new_connection
) {
723 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
724 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
725 wpa_msg(wpa_s
, MSG_INFO
, WPA_EVENT_CONNECTED
"- Connection to "
726 MACSTR
" completed [id=%d id_str=%s]",
727 MAC2STR(wpa_s
->bssid
),
728 ssid
? ssid
->id
: -1,
729 ssid
&& ssid
->id_str
? ssid
->id_str
: "");
730 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
731 wpas_clear_temp_disabled(wpa_s
, ssid
, 1);
732 wpa_s
->extra_blacklist_count
= 0;
733 wpa_s
->new_connection
= 0;
734 wpa_drv_set_operstate(wpa_s
, 1);
735 #ifndef IEEE8021X_EAPOL
736 wpa_drv_set_supp_port(wpa_s
, 1);
737 #endif /* IEEE8021X_EAPOL */
738 wpa_s
->after_wps
= 0;
739 wpa_s
->known_wps_freq
= 0;
740 wpas_p2p_completed(wpa_s
);
742 sme_sched_obss_scan(wpa_s
, 1);
743 } else if (state
== WPA_DISCONNECTED
|| state
== WPA_ASSOCIATING
||
744 state
== WPA_ASSOCIATED
) {
745 wpa_s
->new_connection
= 1;
746 wpa_drv_set_operstate(wpa_s
, 0);
747 #ifndef IEEE8021X_EAPOL
748 wpa_drv_set_supp_port(wpa_s
, 0);
749 #endif /* IEEE8021X_EAPOL */
750 sme_sched_obss_scan(wpa_s
, 0);
752 wpa_s
->wpa_state
= state
;
755 if (state
== WPA_COMPLETED
)
756 wpa_supplicant_start_bgscan(wpa_s
);
757 else if (state
< WPA_ASSOCIATED
)
758 wpa_supplicant_stop_bgscan(wpa_s
);
759 #endif /* CONFIG_BGSCAN */
761 if (state
== WPA_AUTHENTICATING
)
762 wpa_supplicant_stop_autoscan(wpa_s
);
764 if (state
== WPA_DISCONNECTED
|| state
== WPA_INACTIVE
)
765 wpa_supplicant_start_autoscan(wpa_s
);
767 if (old_state
>= WPA_ASSOCIATED
&& wpa_s
->wpa_state
< WPA_ASSOCIATED
)
768 wmm_ac_notify_disassoc(wpa_s
);
770 if (wpa_s
->wpa_state
!= old_state
) {
771 wpas_notify_state_changed(wpa_s
, wpa_s
->wpa_state
, old_state
);
774 * Notify the P2P Device interface about a state change in one
777 wpas_p2p_indicate_state_change(wpa_s
);
779 if (wpa_s
->wpa_state
== WPA_COMPLETED
||
780 old_state
== WPA_COMPLETED
)
781 wpas_notify_auth_changed(wpa_s
);
786 void wpa_supplicant_terminate_proc(struct wpa_global
*global
)
790 struct wpa_supplicant
*wpa_s
= global
->ifaces
;
792 struct wpa_supplicant
*next
= wpa_s
->next
;
793 if (wpas_wps_terminate_pending(wpa_s
) == 1)
796 if (wpa_s
->p2p_group_interface
!= NOT_P2P_GROUP_INTERFACE
||
797 (wpa_s
->current_ssid
&& wpa_s
->current_ssid
->p2p_group
))
798 wpas_p2p_disconnect(wpa_s
);
799 #endif /* CONFIG_P2P */
802 #endif /* CONFIG_WPS */
809 static void wpa_supplicant_terminate(int sig
, void *signal_ctx
)
811 struct wpa_global
*global
= signal_ctx
;
812 wpa_supplicant_terminate_proc(global
);
816 void wpa_supplicant_clear_status(struct wpa_supplicant
*wpa_s
)
818 enum wpa_states old_state
= wpa_s
->wpa_state
;
820 wpa_s
->pairwise_cipher
= 0;
821 wpa_s
->group_cipher
= 0;
822 wpa_s
->mgmt_group_cipher
= 0;
824 if (wpa_s
->wpa_state
!= WPA_INTERFACE_DISABLED
)
825 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
827 if (wpa_s
->wpa_state
!= old_state
)
828 wpas_notify_state_changed(wpa_s
, wpa_s
->wpa_state
, old_state
);
833 * wpa_supplicant_reload_configuration - Reload configuration data
834 * @wpa_s: Pointer to wpa_supplicant data
835 * Returns: 0 on success or -1 if configuration parsing failed
837 * This function can be used to request that the configuration data is reloaded
838 * (e.g., after configuration file change). This function is reloading
839 * configuration only for one interface, so this may need to be called multiple
840 * times if %wpa_supplicant is controlling multiple interfaces and all
841 * interfaces need reconfiguration.
843 int wpa_supplicant_reload_configuration(struct wpa_supplicant
*wpa_s
)
845 struct wpa_config
*conf
;
849 if (wpa_s
->confname
== NULL
)
851 conf
= wpa_config_read(wpa_s
->confname
, NULL
);
853 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to parse the configuration "
854 "file '%s' - exiting", wpa_s
->confname
);
857 wpa_config_read(wpa_s
->confanother
, conf
);
859 conf
->changed_parameters
= (unsigned int) -1;
861 reconf_ctrl
= !!conf
->ctrl_interface
!= !!wpa_s
->conf
->ctrl_interface
862 || (conf
->ctrl_interface
&& wpa_s
->conf
->ctrl_interface
&&
863 os_strcmp(conf
->ctrl_interface
,
864 wpa_s
->conf
->ctrl_interface
) != 0);
866 if (reconf_ctrl
&& wpa_s
->ctrl_iface
) {
867 wpa_supplicant_ctrl_iface_deinit(wpa_s
->ctrl_iface
);
868 wpa_s
->ctrl_iface
= NULL
;
871 eapol_sm_invalidate_cached_session(wpa_s
->eapol
);
872 if (wpa_s
->current_ssid
) {
873 wpa_supplicant_deauthenticate(wpa_s
,
874 WLAN_REASON_DEAUTH_LEAVING
);
878 * TODO: should notify EAPOL SM about changes in opensc_engine_path,
879 * pkcs11_engine_path, pkcs11_module_path, openssl_ciphers.
881 if (wpa_key_mgmt_wpa_psk(wpa_s
->key_mgmt
)) {
883 * Clear forced success to clear EAP state for next
886 eapol_sm_notify_eap_success(wpa_s
->eapol
, FALSE
);
888 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
889 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
890 wpa_sm_pmksa_cache_flush(wpa_s
->wpa
, NULL
);
891 wpa_sm_set_fast_reauth(wpa_s
->wpa
, wpa_s
->conf
->fast_reauth
);
892 rsn_preauth_deinit(wpa_s
->wpa
);
894 old_ap_scan
= wpa_s
->conf
->ap_scan
;
895 wpa_config_free(wpa_s
->conf
);
897 if (old_ap_scan
!= wpa_s
->conf
->ap_scan
)
898 wpas_notify_ap_scan_changed(wpa_s
);
901 wpa_s
->ctrl_iface
= wpa_supplicant_ctrl_iface_init(wpa_s
);
903 wpa_supplicant_update_config(wpa_s
);
905 wpa_supplicant_clear_status(wpa_s
);
906 if (wpa_supplicant_enabled_networks(wpa_s
)) {
907 wpa_s
->reassociate
= 1;
908 wpa_supplicant_req_scan(wpa_s
, 0, 0);
910 wpa_dbg(wpa_s
, MSG_DEBUG
, "Reconfiguration completed");
915 static void wpa_supplicant_reconfig(int sig
, void *signal_ctx
)
917 struct wpa_global
*global
= signal_ctx
;
918 struct wpa_supplicant
*wpa_s
;
919 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
920 wpa_dbg(wpa_s
, MSG_DEBUG
, "Signal %d received - reconfiguring",
922 if (wpa_supplicant_reload_configuration(wpa_s
) < 0) {
923 wpa_supplicant_terminate_proc(global
);
929 static int wpa_supplicant_suites_from_ai(struct wpa_supplicant
*wpa_s
,
930 struct wpa_ssid
*ssid
,
931 struct wpa_ie_data
*ie
)
933 int ret
= wpa_sm_parse_own_wpa_ie(wpa_s
->wpa
, ie
);
936 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Failed to parse WPA IE "
937 "from association info");
942 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Using WPA IE from AssocReq to set "
944 if (!(ie
->group_cipher
& ssid
->group_cipher
)) {
945 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Driver used disabled group "
946 "cipher 0x%x (mask 0x%x) - reject",
947 ie
->group_cipher
, ssid
->group_cipher
);
950 if (!(ie
->pairwise_cipher
& ssid
->pairwise_cipher
)) {
951 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Driver used disabled pairwise "
952 "cipher 0x%x (mask 0x%x) - reject",
953 ie
->pairwise_cipher
, ssid
->pairwise_cipher
);
956 if (!(ie
->key_mgmt
& ssid
->key_mgmt
)) {
957 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Driver used disabled key "
958 "management 0x%x (mask 0x%x) - reject",
959 ie
->key_mgmt
, ssid
->key_mgmt
);
963 #ifdef CONFIG_IEEE80211W
964 if (!(ie
->capabilities
& WPA_CAPABILITY_MFPC
) &&
965 (ssid
->ieee80211w
== MGMT_FRAME_PROTECTION_DEFAULT
?
966 wpa_s
->conf
->pmf
: ssid
->ieee80211w
) ==
967 MGMT_FRAME_PROTECTION_REQUIRED
) {
968 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Driver associated with an AP "
969 "that does not support management frame protection - "
973 #endif /* CONFIG_IEEE80211W */
980 * wpa_supplicant_set_suites - Set authentication and encryption parameters
981 * @wpa_s: Pointer to wpa_supplicant data
982 * @bss: Scan results for the selected BSS, or %NULL if not available
983 * @ssid: Configuration data for the selected network
984 * @wpa_ie: Buffer for the WPA/RSN IE
985 * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the
986 * used buffer length in case the functions returns success.
987 * Returns: 0 on success or -1 on failure
989 * This function is used to configure authentication and encryption parameters
990 * based on the network configuration and scan result for the selected BSS (if
993 int wpa_supplicant_set_suites(struct wpa_supplicant
*wpa_s
,
994 struct wpa_bss
*bss
, struct wpa_ssid
*ssid
,
995 u8
*wpa_ie
, size_t *wpa_ie_len
)
997 struct wpa_ie_data ie
;
999 const u8
*bss_wpa
, *bss_rsn
, *bss_osen
;
1002 bss_wpa
= wpa_bss_get_vendor_ie(bss
, WPA_IE_VENDOR_TYPE
);
1003 bss_rsn
= wpa_bss_get_ie(bss
, WLAN_EID_RSN
);
1004 bss_osen
= wpa_bss_get_vendor_ie(bss
, OSEN_IE_VENDOR_TYPE
);
1006 bss_wpa
= bss_rsn
= bss_osen
= NULL
;
1008 if (bss_rsn
&& (ssid
->proto
& WPA_PROTO_RSN
) &&
1009 wpa_parse_wpa_ie(bss_rsn
, 2 + bss_rsn
[1], &ie
) == 0 &&
1010 (ie
.group_cipher
& ssid
->group_cipher
) &&
1011 (ie
.pairwise_cipher
& ssid
->pairwise_cipher
) &&
1012 (ie
.key_mgmt
& ssid
->key_mgmt
)) {
1013 wpa_dbg(wpa_s
, MSG_DEBUG
, "RSN: using IEEE 802.11i/D9.0");
1014 proto
= WPA_PROTO_RSN
;
1015 } else if (bss_wpa
&& (ssid
->proto
& WPA_PROTO_WPA
) &&
1016 wpa_parse_wpa_ie(bss_wpa
, 2 + bss_wpa
[1], &ie
) == 0 &&
1017 (ie
.group_cipher
& ssid
->group_cipher
) &&
1018 (ie
.pairwise_cipher
& ssid
->pairwise_cipher
) &&
1019 (ie
.key_mgmt
& ssid
->key_mgmt
)) {
1020 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using IEEE 802.11i/D3.0");
1021 proto
= WPA_PROTO_WPA
;
1023 } else if (bss_osen
&& (ssid
->proto
& WPA_PROTO_OSEN
)) {
1024 wpa_dbg(wpa_s
, MSG_DEBUG
, "HS 2.0: using OSEN");
1025 /* TODO: parse OSEN element */
1026 os_memset(&ie
, 0, sizeof(ie
));
1027 ie
.group_cipher
= WPA_CIPHER_CCMP
;
1028 ie
.pairwise_cipher
= WPA_CIPHER_CCMP
;
1029 ie
.key_mgmt
= WPA_KEY_MGMT_OSEN
;
1030 proto
= WPA_PROTO_OSEN
;
1031 #endif /* CONFIG_HS20 */
1033 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to select WPA/RSN");
1034 wpa_dbg(wpa_s
, MSG_DEBUG
,
1035 "WPA: ssid proto=0x%x pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1036 ssid
->proto
, ssid
->pairwise_cipher
, ssid
->group_cipher
,
1038 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: BSS " MACSTR
" ssid='%s'%s%s%s",
1039 MAC2STR(bss
->bssid
),
1040 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
),
1041 bss_wpa
? " WPA" : "",
1042 bss_rsn
? " RSN" : "",
1043 bss_osen
? " OSEN" : "");
1045 wpa_hexdump(MSG_DEBUG
, "RSN", bss_rsn
, 2 + bss_rsn
[1]);
1046 if (wpa_parse_wpa_ie(bss_rsn
, 2 + bss_rsn
[1], &ie
)) {
1047 wpa_dbg(wpa_s
, MSG_DEBUG
,
1048 "Could not parse RSN element");
1050 wpa_dbg(wpa_s
, MSG_DEBUG
,
1051 "RSN: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1052 ie
.pairwise_cipher
, ie
.group_cipher
,
1057 wpa_hexdump(MSG_DEBUG
, "WPA", bss_wpa
, 2 + bss_wpa
[1]);
1058 if (wpa_parse_wpa_ie(bss_wpa
, 2 + bss_wpa
[1], &ie
)) {
1059 wpa_dbg(wpa_s
, MSG_DEBUG
,
1060 "Could not parse WPA element");
1062 wpa_dbg(wpa_s
, MSG_DEBUG
,
1063 "WPA: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1064 ie
.pairwise_cipher
, ie
.group_cipher
,
1070 if (ssid
->proto
& WPA_PROTO_OSEN
)
1071 proto
= WPA_PROTO_OSEN
;
1072 else if (ssid
->proto
& WPA_PROTO_RSN
)
1073 proto
= WPA_PROTO_RSN
;
1075 proto
= WPA_PROTO_WPA
;
1076 if (wpa_supplicant_suites_from_ai(wpa_s
, ssid
, &ie
) < 0) {
1077 os_memset(&ie
, 0, sizeof(ie
));
1078 ie
.group_cipher
= ssid
->group_cipher
;
1079 ie
.pairwise_cipher
= ssid
->pairwise_cipher
;
1080 ie
.key_mgmt
= ssid
->key_mgmt
;
1081 #ifdef CONFIG_IEEE80211W
1082 ie
.mgmt_group_cipher
=
1083 ssid
->ieee80211w
!= NO_MGMT_FRAME_PROTECTION
?
1084 WPA_CIPHER_AES_128_CMAC
: 0;
1085 #endif /* CONFIG_IEEE80211W */
1086 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Set cipher suites "
1087 "based on configuration");
1092 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Selected cipher suites: group %d "
1093 "pairwise %d key_mgmt %d proto %d",
1094 ie
.group_cipher
, ie
.pairwise_cipher
, ie
.key_mgmt
, proto
);
1095 #ifdef CONFIG_IEEE80211W
1096 if (ssid
->ieee80211w
) {
1097 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Selected mgmt group cipher %d",
1098 ie
.mgmt_group_cipher
);
1100 #endif /* CONFIG_IEEE80211W */
1102 wpa_s
->wpa_proto
= proto
;
1103 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_PROTO
, proto
);
1104 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_RSN_ENABLED
,
1105 !!(ssid
->proto
& (WPA_PROTO_RSN
| WPA_PROTO_OSEN
)));
1107 if (bss
|| !wpa_s
->ap_ies_from_associnfo
) {
1108 if (wpa_sm_set_ap_wpa_ie(wpa_s
->wpa
, bss_wpa
,
1109 bss_wpa
? 2 + bss_wpa
[1] : 0) ||
1110 wpa_sm_set_ap_rsn_ie(wpa_s
->wpa
, bss_rsn
,
1111 bss_rsn
? 2 + bss_rsn
[1] : 0))
1115 sel
= ie
.group_cipher
& ssid
->group_cipher
;
1116 wpa_s
->group_cipher
= wpa_pick_group_cipher(sel
);
1117 if (wpa_s
->group_cipher
< 0) {
1118 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to select group "
1122 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using GTK %s",
1123 wpa_cipher_txt(wpa_s
->group_cipher
));
1125 sel
= ie
.pairwise_cipher
& ssid
->pairwise_cipher
;
1126 wpa_s
->pairwise_cipher
= wpa_pick_pairwise_cipher(sel
, 1);
1127 if (wpa_s
->pairwise_cipher
< 0) {
1128 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to select pairwise "
1132 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using PTK %s",
1133 wpa_cipher_txt(wpa_s
->pairwise_cipher
));
1135 sel
= ie
.key_mgmt
& ssid
->key_mgmt
;
1137 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_SAE
))
1138 sel
&= ~(WPA_KEY_MGMT_SAE
| WPA_KEY_MGMT_FT_SAE
);
1139 #endif /* CONFIG_SAE */
1141 #ifdef CONFIG_SUITEB192
1142 } else if (sel
& WPA_KEY_MGMT_IEEE8021X_SUITE_B_192
) {
1143 wpa_s
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X_SUITE_B_192
;
1144 wpa_dbg(wpa_s
, MSG_DEBUG
,
1145 "WPA: using KEY_MGMT 802.1X with Suite B (192-bit)");
1146 #endif /* CONFIG_SUITEB192 */
1147 #ifdef CONFIG_SUITEB
1148 } else if (sel
& WPA_KEY_MGMT_IEEE8021X_SUITE_B
) {
1149 wpa_s
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X_SUITE_B
;
1150 wpa_dbg(wpa_s
, MSG_DEBUG
,
1151 "WPA: using KEY_MGMT 802.1X with Suite B");
1152 #endif /* CONFIG_SUITEB */
1153 #ifdef CONFIG_IEEE80211R
1154 } else if (sel
& WPA_KEY_MGMT_FT_IEEE8021X
) {
1155 wpa_s
->key_mgmt
= WPA_KEY_MGMT_FT_IEEE8021X
;
1156 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT FT/802.1X");
1157 } else if (sel
& WPA_KEY_MGMT_FT_PSK
) {
1158 wpa_s
->key_mgmt
= WPA_KEY_MGMT_FT_PSK
;
1159 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT FT/PSK");
1160 #endif /* CONFIG_IEEE80211R */
1162 } else if (sel
& WPA_KEY_MGMT_SAE
) {
1163 wpa_s
->key_mgmt
= WPA_KEY_MGMT_SAE
;
1164 wpa_dbg(wpa_s
, MSG_DEBUG
, "RSN: using KEY_MGMT SAE");
1165 } else if (sel
& WPA_KEY_MGMT_FT_SAE
) {
1166 wpa_s
->key_mgmt
= WPA_KEY_MGMT_FT_SAE
;
1167 wpa_dbg(wpa_s
, MSG_DEBUG
, "RSN: using KEY_MGMT FT/SAE");
1168 #endif /* CONFIG_SAE */
1169 #ifdef CONFIG_IEEE80211W
1170 } else if (sel
& WPA_KEY_MGMT_IEEE8021X_SHA256
) {
1171 wpa_s
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X_SHA256
;
1172 wpa_dbg(wpa_s
, MSG_DEBUG
,
1173 "WPA: using KEY_MGMT 802.1X with SHA256");
1174 } else if (sel
& WPA_KEY_MGMT_PSK_SHA256
) {
1175 wpa_s
->key_mgmt
= WPA_KEY_MGMT_PSK_SHA256
;
1176 wpa_dbg(wpa_s
, MSG_DEBUG
,
1177 "WPA: using KEY_MGMT PSK with SHA256");
1178 #endif /* CONFIG_IEEE80211W */
1179 } else if (sel
& WPA_KEY_MGMT_IEEE8021X
) {
1180 wpa_s
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X
;
1181 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT 802.1X");
1182 } else if (sel
& WPA_KEY_MGMT_PSK
) {
1183 wpa_s
->key_mgmt
= WPA_KEY_MGMT_PSK
;
1184 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT WPA-PSK");
1185 } else if (sel
& WPA_KEY_MGMT_WPA_NONE
) {
1186 wpa_s
->key_mgmt
= WPA_KEY_MGMT_WPA_NONE
;
1187 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT WPA-NONE");
1189 } else if (sel
& WPA_KEY_MGMT_OSEN
) {
1190 wpa_s
->key_mgmt
= WPA_KEY_MGMT_OSEN
;
1191 wpa_dbg(wpa_s
, MSG_DEBUG
, "HS 2.0: using KEY_MGMT OSEN");
1192 #endif /* CONFIG_HS20 */
1194 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to select "
1195 "authenticated key management type");
1199 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_KEY_MGMT
, wpa_s
->key_mgmt
);
1200 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_PAIRWISE
,
1201 wpa_s
->pairwise_cipher
);
1202 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_GROUP
, wpa_s
->group_cipher
);
1204 #ifdef CONFIG_IEEE80211W
1205 sel
= ie
.mgmt_group_cipher
;
1206 if ((ssid
->ieee80211w
== MGMT_FRAME_PROTECTION_DEFAULT
?
1207 wpa_s
->conf
->pmf
: ssid
->ieee80211w
) == NO_MGMT_FRAME_PROTECTION
||
1208 !(ie
.capabilities
& WPA_CAPABILITY_MFPC
))
1210 if (sel
& WPA_CIPHER_AES_128_CMAC
) {
1211 wpa_s
->mgmt_group_cipher
= WPA_CIPHER_AES_128_CMAC
;
1212 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using MGMT group cipher "
1214 } else if (sel
& WPA_CIPHER_BIP_GMAC_128
) {
1215 wpa_s
->mgmt_group_cipher
= WPA_CIPHER_BIP_GMAC_128
;
1216 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using MGMT group cipher "
1218 } else if (sel
& WPA_CIPHER_BIP_GMAC_256
) {
1219 wpa_s
->mgmt_group_cipher
= WPA_CIPHER_BIP_GMAC_256
;
1220 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using MGMT group cipher "
1222 } else if (sel
& WPA_CIPHER_BIP_CMAC_256
) {
1223 wpa_s
->mgmt_group_cipher
= WPA_CIPHER_BIP_CMAC_256
;
1224 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using MGMT group cipher "
1227 wpa_s
->mgmt_group_cipher
= 0;
1228 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: not using MGMT group cipher");
1230 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_MGMT_GROUP
,
1231 wpa_s
->mgmt_group_cipher
);
1232 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_MFP
,
1233 (ssid
->ieee80211w
== MGMT_FRAME_PROTECTION_DEFAULT
?
1234 wpa_s
->conf
->pmf
: ssid
->ieee80211w
));
1235 #endif /* CONFIG_IEEE80211W */
1237 if (wpa_sm_set_assoc_wpa_ie_default(wpa_s
->wpa
, wpa_ie
, wpa_ie_len
)) {
1238 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to generate WPA IE");
1242 if (wpa_key_mgmt_wpa_psk(ssid
->key_mgmt
)) {
1243 wpa_sm_set_pmk(wpa_s
->wpa
, ssid
->psk
, PMK_LEN
, NULL
);
1244 #ifndef CONFIG_NO_PBKDF2
1245 if (bss
&& ssid
->bssid_set
&& ssid
->ssid_len
== 0 &&
1248 pbkdf2_sha1(ssid
->passphrase
, bss
->ssid
, bss
->ssid_len
,
1249 4096, psk
, PMK_LEN
);
1250 wpa_hexdump_key(MSG_MSGDUMP
, "PSK (from passphrase)",
1252 wpa_sm_set_pmk(wpa_s
->wpa
, psk
, PMK_LEN
, NULL
);
1253 os_memset(psk
, 0, sizeof(psk
));
1255 #endif /* CONFIG_NO_PBKDF2 */
1256 #ifdef CONFIG_EXT_PASSWORD
1257 if (ssid
->ext_psk
) {
1258 struct wpabuf
*pw
= ext_password_get(wpa_s
->ext_pw
,
1260 char pw_str
[64 + 1];
1264 wpa_msg(wpa_s
, MSG_INFO
, "EXT PW: No PSK "
1265 "found from external storage");
1269 if (wpabuf_len(pw
) < 8 || wpabuf_len(pw
) > 64) {
1270 wpa_msg(wpa_s
, MSG_INFO
, "EXT PW: Unexpected "
1271 "PSK length %d in external storage",
1272 (int) wpabuf_len(pw
));
1273 ext_password_free(pw
);
1277 os_memcpy(pw_str
, wpabuf_head(pw
), wpabuf_len(pw
));
1278 pw_str
[wpabuf_len(pw
)] = '\0';
1280 #ifndef CONFIG_NO_PBKDF2
1281 if (wpabuf_len(pw
) >= 8 && wpabuf_len(pw
) < 64 && bss
)
1283 pbkdf2_sha1(pw_str
, bss
->ssid
, bss
->ssid_len
,
1284 4096, psk
, PMK_LEN
);
1285 os_memset(pw_str
, 0, sizeof(pw_str
));
1286 wpa_hexdump_key(MSG_MSGDUMP
, "PSK (from "
1287 "external passphrase)",
1289 wpa_sm_set_pmk(wpa_s
->wpa
, psk
, PMK_LEN
, NULL
);
1290 os_memset(psk
, 0, sizeof(psk
));
1292 #endif /* CONFIG_NO_PBKDF2 */
1293 if (wpabuf_len(pw
) == 2 * PMK_LEN
) {
1294 if (hexstr2bin(pw_str
, psk
, PMK_LEN
) < 0) {
1295 wpa_msg(wpa_s
, MSG_INFO
, "EXT PW: "
1296 "Invalid PSK hex string");
1297 os_memset(pw_str
, 0, sizeof(pw_str
));
1298 ext_password_free(pw
);
1301 wpa_sm_set_pmk(wpa_s
->wpa
, psk
, PMK_LEN
, NULL
);
1302 os_memset(psk
, 0, sizeof(psk
));
1304 wpa_msg(wpa_s
, MSG_INFO
, "EXT PW: No suitable "
1306 os_memset(pw_str
, 0, sizeof(pw_str
));
1307 ext_password_free(pw
);
1311 os_memset(pw_str
, 0, sizeof(pw_str
));
1312 ext_password_free(pw
);
1314 #endif /* CONFIG_EXT_PASSWORD */
1316 wpa_sm_set_pmk_from_pmksa(wpa_s
->wpa
);
1322 static void wpas_ext_capab_byte(struct wpa_supplicant
*wpa_s
, u8
*pos
, int idx
)
1327 case 0: /* Bits 0-7 */
1329 case 1: /* Bits 8-15 */
1331 case 2: /* Bits 16-23 */
1333 *pos
|= 0x02; /* Bit 17 - WNM-Sleep Mode */
1334 *pos
|= 0x08; /* Bit 19 - BSS Transition */
1335 #endif /* CONFIG_WNM */
1337 case 3: /* Bits 24-31 */
1339 *pos
|= 0x02; /* Bit 25 - SSID List */
1340 #endif /* CONFIG_WNM */
1341 #ifdef CONFIG_INTERWORKING
1342 if (wpa_s
->conf
->interworking
)
1343 *pos
|= 0x80; /* Bit 31 - Interworking */
1344 #endif /* CONFIG_INTERWORKING */
1346 case 4: /* Bits 32-39 */
1347 #ifdef CONFIG_INTERWORKING
1348 if (wpa_s
->drv_flags
/ WPA_DRIVER_FLAGS_QOS_MAPPING
)
1349 *pos
|= 0x01; /* Bit 32 - QoS Map */
1350 #endif /* CONFIG_INTERWORKING */
1352 case 5: /* Bits 40-47 */
1354 if (wpa_s
->conf
->hs20
)
1355 *pos
|= 0x40; /* Bit 46 - WNM-Notification */
1356 #endif /* CONFIG_HS20 */
1358 case 6: /* Bits 48-55 */
1364 int wpas_build_ext_capab(struct wpa_supplicant
*wpa_s
, u8
*buf
, size_t buflen
)
1369 if (len
< wpa_s
->extended_capa_len
)
1370 len
= wpa_s
->extended_capa_len
;
1371 if (buflen
< (size_t) len
+ 2) {
1372 wpa_printf(MSG_INFO
,
1373 "Not enough room for building extended capabilities element");
1377 *pos
++ = WLAN_EID_EXT_CAPAB
;
1379 for (i
= 0; i
< len
; i
++, pos
++) {
1380 wpas_ext_capab_byte(wpa_s
, pos
, i
);
1382 if (i
< wpa_s
->extended_capa_len
) {
1383 *pos
&= ~wpa_s
->extended_capa_mask
[i
];
1384 *pos
|= wpa_s
->extended_capa
[i
];
1388 while (len
> 0 && buf
[1 + len
] == 0) {
1399 static int wpas_valid_bss(struct wpa_supplicant
*wpa_s
,
1400 struct wpa_bss
*test_bss
)
1402 struct wpa_bss
*bss
;
1404 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
1405 if (bss
== test_bss
)
1413 static int wpas_valid_ssid(struct wpa_supplicant
*wpa_s
,
1414 struct wpa_ssid
*test_ssid
)
1416 struct wpa_ssid
*ssid
;
1418 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
) {
1419 if (ssid
== test_ssid
)
1427 int wpas_valid_bss_ssid(struct wpa_supplicant
*wpa_s
, struct wpa_bss
*test_bss
,
1428 struct wpa_ssid
*test_ssid
)
1430 if (test_bss
&& !wpas_valid_bss(wpa_s
, test_bss
))
1433 return test_ssid
== NULL
|| wpas_valid_ssid(wpa_s
, test_ssid
);
1437 void wpas_connect_work_free(struct wpa_connect_work
*cwork
)
1445 void wpas_connect_work_done(struct wpa_supplicant
*wpa_s
)
1447 struct wpa_connect_work
*cwork
;
1448 struct wpa_radio_work
*work
= wpa_s
->connect_work
;
1453 wpa_s
->connect_work
= NULL
;
1456 wpas_connect_work_free(cwork
);
1457 radio_work_done(work
);
1461 int wpas_update_random_addr(struct wpa_supplicant
*wpa_s
, int style
)
1463 struct os_reltime now
;
1466 os_get_reltime(&now
);
1467 if (wpa_s
->last_mac_addr_style
== style
&&
1468 wpa_s
->last_mac_addr_change
.sec
!= 0 &&
1469 !os_reltime_expired(&now
, &wpa_s
->last_mac_addr_change
,
1470 wpa_s
->conf
->rand_addr_lifetime
)) {
1471 wpa_msg(wpa_s
, MSG_DEBUG
,
1472 "Previously selected random MAC address has not yet expired");
1478 if (random_mac_addr(addr
) < 0)
1482 os_memcpy(addr
, wpa_s
->perm_addr
, ETH_ALEN
);
1483 if (random_mac_addr_keep_oui(addr
) < 0)
1490 if (wpa_drv_set_mac_addr(wpa_s
, addr
) < 0) {
1491 wpa_msg(wpa_s
, MSG_INFO
,
1492 "Failed to set random MAC address");
1496 os_get_reltime(&wpa_s
->last_mac_addr_change
);
1497 wpa_s
->mac_addr_changed
= 1;
1498 wpa_s
->last_mac_addr_style
= style
;
1500 if (wpa_supplicant_update_mac_addr(wpa_s
) < 0) {
1501 wpa_msg(wpa_s
, MSG_INFO
,
1502 "Could not update MAC address information");
1506 wpa_msg(wpa_s
, MSG_DEBUG
, "Using random MAC address " MACSTR
,
1513 int wpas_update_random_addr_disassoc(struct wpa_supplicant
*wpa_s
)
1515 if (wpa_s
->wpa_state
>= WPA_AUTHENTICATING
||
1516 !wpa_s
->conf
->preassoc_mac_addr
)
1519 return wpas_update_random_addr(wpa_s
, wpa_s
->conf
->preassoc_mac_addr
);
1523 static void wpas_start_assoc_cb(struct wpa_radio_work
*work
, int deinit
);
1526 * wpa_supplicant_associate - Request association
1527 * @wpa_s: Pointer to wpa_supplicant data
1528 * @bss: Scan results for the selected BSS, or %NULL if not available
1529 * @ssid: Configuration data for the selected network
1531 * This function is used to request %wpa_supplicant to associate with a BSS.
1533 void wpa_supplicant_associate(struct wpa_supplicant
*wpa_s
,
1534 struct wpa_bss
*bss
, struct wpa_ssid
*ssid
)
1536 struct wpa_connect_work
*cwork
;
1539 if (ssid
->mac_addr
== -1)
1540 rand_style
= wpa_s
->conf
->mac_addr
;
1542 rand_style
= ssid
->mac_addr
;
1544 wmm_ac_clear_saved_tspecs(wpa_s
);
1545 wpa_s
->reassoc_same_bss
= 0;
1547 if (wpa_s
->last_ssid
== ssid
) {
1548 wpa_dbg(wpa_s
, MSG_DEBUG
, "Re-association to the same ESS");
1549 if (wpa_s
->current_bss
&& wpa_s
->current_bss
== bss
) {
1550 wmm_ac_save_tspecs(wpa_s
);
1551 wpa_s
->reassoc_same_bss
= 1;
1553 } else if (rand_style
> 0) {
1554 if (wpas_update_random_addr(wpa_s
, rand_style
) < 0)
1556 wpa_sm_pmksa_cache_flush(wpa_s
->wpa
, ssid
);
1557 } else if (wpa_s
->mac_addr_changed
) {
1558 if (wpa_drv_set_mac_addr(wpa_s
, NULL
) < 0) {
1559 wpa_msg(wpa_s
, MSG_INFO
,
1560 "Could not restore permanent MAC address");
1563 wpa_s
->mac_addr_changed
= 0;
1564 if (wpa_supplicant_update_mac_addr(wpa_s
) < 0) {
1565 wpa_msg(wpa_s
, MSG_INFO
,
1566 "Could not update MAC address information");
1569 wpa_msg(wpa_s
, MSG_DEBUG
, "Using permanent MAC address");
1571 wpa_s
->last_ssid
= ssid
;
1573 #ifdef CONFIG_IBSS_RSN
1574 ibss_rsn_deinit(wpa_s
->ibss_rsn
);
1575 wpa_s
->ibss_rsn
= NULL
;
1576 #endif /* CONFIG_IBSS_RSN */
1578 if (ssid
->mode
== WPAS_MODE_AP
|| ssid
->mode
== WPAS_MODE_P2P_GO
||
1579 ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
1581 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_AP
)) {
1582 wpa_msg(wpa_s
, MSG_INFO
, "Driver does not support AP "
1586 if (wpa_supplicant_create_ap(wpa_s
, ssid
) < 0) {
1587 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
1588 if (ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
)
1589 wpas_p2p_ap_setup_failed(wpa_s
);
1592 wpa_s
->current_bss
= bss
;
1593 #else /* CONFIG_AP */
1594 wpa_msg(wpa_s
, MSG_ERROR
, "AP mode support not included in "
1596 #endif /* CONFIG_AP */
1600 if (ssid
->mode
== WPAS_MODE_MESH
) {
1602 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_MESH
)) {
1603 wpa_msg(wpa_s
, MSG_INFO
,
1604 "Driver does not support mesh mode");
1608 ssid
->frequency
= bss
->freq
;
1609 if (wpa_supplicant_join_mesh(wpa_s
, ssid
) < 0) {
1610 wpa_msg(wpa_s
, MSG_ERROR
, "Could not join mesh");
1613 wpa_s
->current_bss
= bss
;
1614 wpa_msg_ctrl(wpa_s
, MSG_INFO
, MESH_GROUP_STARTED
1615 "ssid=\"%s\" id=%d",
1616 wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
),
1618 #else /* CONFIG_MESH */
1619 wpa_msg(wpa_s
, MSG_ERROR
,
1620 "mesh mode support not included in the build");
1621 #endif /* CONFIG_MESH */
1627 wpa_tdls_ap_ies(wpa_s
->wpa
, (const u8
*) (bss
+ 1),
1629 #endif /* CONFIG_TDLS */
1631 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_SME
) &&
1632 ssid
->mode
== IEEE80211_MODE_INFRA
) {
1633 sme_authenticate(wpa_s
, bss
, ssid
);
1637 if (wpa_s
->connect_work
) {
1638 wpa_dbg(wpa_s
, MSG_DEBUG
, "Reject wpa_supplicant_associate() call since connect_work exist");
1642 if (radio_work_pending(wpa_s
, "connect")) {
1643 wpa_dbg(wpa_s
, MSG_DEBUG
, "Reject wpa_supplicant_associate() call since pending work exist");
1647 cwork
= os_zalloc(sizeof(*cwork
));
1654 if (radio_add_work(wpa_s
, bss
? bss
->freq
: 0, "connect", 1,
1655 wpas_start_assoc_cb
, cwork
) < 0) {
1661 void ibss_mesh_setup_freq(struct wpa_supplicant
*wpa_s
,
1662 const struct wpa_ssid
*ssid
,
1663 struct hostapd_freq_params
*freq
)
1665 enum hostapd_hw_mode hw_mode
;
1666 struct hostapd_hw_modes
*mode
= NULL
;
1667 int ht40plus
[] = { 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157,
1669 struct hostapd_channel_data
*pri_chan
= NULL
, *sec_chan
= NULL
;
1671 int i
, chan_idx
, ht40
= -1, res
;
1674 freq
->freq
= ssid
->frequency
;
1676 /* For IBSS check HT_IBSS flag */
1677 if (ssid
->mode
== WPAS_MODE_IBSS
&&
1678 !(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_HT_IBSS
))
1681 hw_mode
= ieee80211_freq_to_chan(ssid
->frequency
, &channel
);
1682 for (i
= 0; wpa_s
->hw
.modes
&& i
< wpa_s
->hw
.num_modes
; i
++) {
1683 if (wpa_s
->hw
.modes
[i
].mode
== hw_mode
) {
1684 mode
= &wpa_s
->hw
.modes
[i
];
1692 freq
->ht_enabled
= ht_supported(mode
);
1693 if (!freq
->ht_enabled
)
1696 /* Setup higher BW only for 5 GHz */
1697 if (mode
->mode
!= HOSTAPD_MODE_IEEE80211A
)
1700 for (chan_idx
= 0; chan_idx
< mode
->num_channels
; chan_idx
++) {
1701 pri_chan
= &mode
->channels
[chan_idx
];
1702 if (pri_chan
->chan
== channel
)
1709 /* Check primary channel flags */
1710 if (pri_chan
->flag
& (HOSTAPD_CHAN_DISABLED
| HOSTAPD_CHAN_NO_IR
))
1713 /* Check/setup HT40+/HT40- */
1714 for (j
= 0; j
< ARRAY_SIZE(ht40plus
); j
++) {
1715 if (ht40plus
[j
] == channel
) {
1721 /* Find secondary channel */
1722 for (i
= 0; i
< mode
->num_channels
; i
++) {
1723 sec_chan
= &mode
->channels
[i
];
1724 if (sec_chan
->chan
== channel
+ ht40
* 4)
1731 /* Check secondary channel flags */
1732 if (sec_chan
->flag
& (HOSTAPD_CHAN_DISABLED
| HOSTAPD_CHAN_NO_IR
))
1735 freq
->channel
= pri_chan
->chan
;
1739 if (!(pri_chan
->flag
& HOSTAPD_CHAN_HT40MINUS
))
1741 freq
->sec_channel_offset
= -1;
1744 if (!(pri_chan
->flag
& HOSTAPD_CHAN_HT40PLUS
))
1746 freq
->sec_channel_offset
= 1;
1752 if (freq
->sec_channel_offset
) {
1753 struct wpa_scan_results
*scan_res
;
1755 scan_res
= wpa_supplicant_get_scan_results(wpa_s
, NULL
, 0);
1756 if (scan_res
== NULL
) {
1758 freq
->sec_channel_offset
= 0;
1762 res
= check_40mhz_5g(mode
, scan_res
, pri_chan
->chan
,
1767 freq
->sec_channel_offset
= 0;
1770 /* Configuration allowed */
1773 /* Switch pri/sec channels */
1774 freq
->freq
= hw_get_freq(mode
, sec_chan
->chan
);
1775 freq
->sec_channel_offset
= -freq
->sec_channel_offset
;
1776 freq
->channel
= sec_chan
->chan
;
1779 freq
->sec_channel_offset
= 0;
1783 wpa_scan_results_free(scan_res
);
1786 wpa_printf(MSG_DEBUG
,
1787 "IBSS/mesh: setup freq channel %d, sec_channel_offset %d",
1788 freq
->channel
, freq
->sec_channel_offset
);
1792 static void wpas_start_assoc_cb(struct wpa_radio_work
*work
, int deinit
)
1794 struct wpa_connect_work
*cwork
= work
->ctx
;
1795 struct wpa_bss
*bss
= cwork
->bss
;
1796 struct wpa_ssid
*ssid
= cwork
->ssid
;
1797 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
1800 int use_crypt
, ret
, i
, bssid_changed
;
1801 int algs
= WPA_AUTH_ALG_OPEN
;
1802 unsigned int cipher_pairwise
, cipher_group
;
1803 struct wpa_driver_associate_params params
;
1804 int wep_keys_set
= 0;
1805 int assoc_failed
= 0;
1806 struct wpa_ssid
*old_ssid
;
1807 #ifdef CONFIG_HT_OVERRIDES
1808 struct ieee80211_ht_capabilities htcaps
;
1809 struct ieee80211_ht_capabilities htcaps_mask
;
1810 #endif /* CONFIG_HT_OVERRIDES */
1811 #ifdef CONFIG_VHT_OVERRIDES
1812 struct ieee80211_vht_capabilities vhtcaps
;
1813 struct ieee80211_vht_capabilities vhtcaps_mask
;
1814 #endif /* CONFIG_VHT_OVERRIDES */
1817 if (work
->started
) {
1818 wpa_s
->connect_work
= NULL
;
1820 /* cancel possible auth. timeout */
1821 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
,
1824 wpas_connect_work_free(cwork
);
1828 wpa_s
->connect_work
= work
;
1830 if (cwork
->bss_removed
|| !wpas_valid_bss_ssid(wpa_s
, bss
, ssid
)) {
1831 wpa_dbg(wpa_s
, MSG_DEBUG
, "BSS/SSID entry for association not valid anymore - drop connection attempt");
1832 wpas_connect_work_done(wpa_s
);
1836 os_memset(¶ms
, 0, sizeof(params
));
1837 wpa_s
->reassociate
= 0;
1838 wpa_s
->eap_expected_failure
= 0;
1840 (!wpas_driver_bss_selection(wpa_s
) || wpas_wps_searching(wpa_s
))) {
1841 #ifdef CONFIG_IEEE80211R
1842 const u8
*ie
, *md
= NULL
;
1843 #endif /* CONFIG_IEEE80211R */
1844 wpa_msg(wpa_s
, MSG_INFO
, "Trying to associate with " MACSTR
1845 " (SSID='%s' freq=%d MHz)", MAC2STR(bss
->bssid
),
1846 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
), bss
->freq
);
1847 bssid_changed
= !is_zero_ether_addr(wpa_s
->bssid
);
1848 os_memset(wpa_s
->bssid
, 0, ETH_ALEN
);
1849 os_memcpy(wpa_s
->pending_bssid
, bss
->bssid
, ETH_ALEN
);
1851 wpas_notify_bssid_changed(wpa_s
);
1852 #ifdef CONFIG_IEEE80211R
1853 ie
= wpa_bss_get_ie(bss
, WLAN_EID_MOBILITY_DOMAIN
);
1854 if (ie
&& ie
[1] >= MOBILITY_DOMAIN_ID_LEN
)
1856 wpa_sm_set_ft_params(wpa_s
->wpa
, ie
, ie
? 2 + ie
[1] : 0);
1858 /* Prepare for the next transition */
1859 wpa_ft_prepare_auth_request(wpa_s
->wpa
, ie
);
1861 #endif /* CONFIG_IEEE80211R */
1863 } else if ((ssid
->ssid
== NULL
|| ssid
->ssid_len
== 0) &&
1864 wpa_s
->conf
->ap_scan
== 2 &&
1865 (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
)) {
1866 /* Use ap_scan==1 style network selection to find the network
1868 wpas_connect_work_done(wpa_s
);
1869 wpa_s
->scan_req
= MANUAL_SCAN_REQ
;
1870 wpa_s
->reassociate
= 1;
1871 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1873 #endif /* CONFIG_WPS */
1875 wpa_msg(wpa_s
, MSG_INFO
, "Trying to associate with SSID '%s'",
1876 wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
));
1877 os_memset(wpa_s
->pending_bssid
, 0, ETH_ALEN
);
1879 wpa_supplicant_cancel_sched_scan(wpa_s
);
1880 wpa_supplicant_cancel_scan(wpa_s
);
1882 /* Starting new association, so clear the possibly used WPA IE from the
1883 * previous association. */
1884 wpa_sm_set_assoc_wpa_ie(wpa_s
->wpa
, NULL
, 0);
1886 #ifdef IEEE8021X_EAPOL
1887 if (ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
1889 if (ssid
->non_leap
== 0)
1890 algs
= WPA_AUTH_ALG_LEAP
;
1892 algs
|= WPA_AUTH_ALG_LEAP
;
1895 #endif /* IEEE8021X_EAPOL */
1896 wpa_dbg(wpa_s
, MSG_DEBUG
, "Automatic auth_alg selection: 0x%x", algs
);
1897 if (ssid
->auth_alg
) {
1898 algs
= ssid
->auth_alg
;
1899 wpa_dbg(wpa_s
, MSG_DEBUG
, "Overriding auth_alg selection: "
1903 if (bss
&& (wpa_bss_get_vendor_ie(bss
, WPA_IE_VENDOR_TYPE
) ||
1904 wpa_bss_get_ie(bss
, WLAN_EID_RSN
)) &&
1905 wpa_key_mgmt_wpa(ssid
->key_mgmt
)) {
1906 int try_opportunistic
;
1907 try_opportunistic
= (ssid
->proactive_key_caching
< 0 ?
1909 ssid
->proactive_key_caching
) &&
1910 (ssid
->proto
& WPA_PROTO_RSN
);
1911 if (pmksa_cache_set_current(wpa_s
->wpa
, NULL
, bss
->bssid
,
1912 ssid
, try_opportunistic
) == 0)
1913 eapol_sm_notify_pmkid_attempt(wpa_s
->eapol
, 1);
1914 wpa_ie_len
= sizeof(wpa_ie
);
1915 if (wpa_supplicant_set_suites(wpa_s
, bss
, ssid
,
1916 wpa_ie
, &wpa_ie_len
)) {
1917 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to set WPA "
1918 "key management and encryption suites");
1919 wpas_connect_work_done(wpa_s
);
1922 } else if ((ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_NO_WPA
) && bss
&&
1923 wpa_key_mgmt_wpa_ieee8021x(ssid
->key_mgmt
)) {
1925 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
1926 * use non-WPA since the scan results did not indicate that the
1927 * AP is using WPA or WPA2.
1929 wpa_supplicant_set_non_wpa_policy(wpa_s
, ssid
);
1931 wpa_s
->wpa_proto
= 0;
1932 } else if (wpa_key_mgmt_wpa_any(ssid
->key_mgmt
)) {
1933 wpa_ie_len
= sizeof(wpa_ie
);
1934 if (wpa_supplicant_set_suites(wpa_s
, NULL
, ssid
,
1935 wpa_ie
, &wpa_ie_len
)) {
1936 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to set WPA "
1937 "key management and encryption suites (no "
1939 wpas_connect_work_done(wpa_s
);
1943 } else if (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
) {
1944 struct wpabuf
*wps_ie
;
1945 wps_ie
= wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid
));
1946 if (wps_ie
&& wpabuf_len(wps_ie
) <= sizeof(wpa_ie
)) {
1947 wpa_ie_len
= wpabuf_len(wps_ie
);
1948 os_memcpy(wpa_ie
, wpabuf_head(wps_ie
), wpa_ie_len
);
1951 wpabuf_free(wps_ie
);
1952 wpa_supplicant_set_non_wpa_policy(wpa_s
, ssid
);
1953 if (!bss
|| (bss
->caps
& IEEE80211_CAP_PRIVACY
))
1954 params
.wps
= WPS_MODE_PRIVACY
;
1956 params
.wps
= WPS_MODE_OPEN
;
1957 wpa_s
->wpa_proto
= 0;
1958 #endif /* CONFIG_WPS */
1960 wpa_supplicant_set_non_wpa_policy(wpa_s
, ssid
);
1962 wpa_s
->wpa_proto
= 0;
1966 if (wpa_s
->global
->p2p
) {
1970 pos
= wpa_ie
+ wpa_ie_len
;
1971 len
= sizeof(wpa_ie
) - wpa_ie_len
;
1972 res
= wpas_p2p_assoc_req_ie(wpa_s
, bss
, pos
, len
,
1978 wpa_s
->cross_connect_disallowed
= 0;
1981 p2p
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
1983 wpa_s
->cross_connect_disallowed
=
1984 p2p_get_cross_connect_disallowed(p2p
);
1986 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: WLAN AP %s cross "
1988 wpa_s
->cross_connect_disallowed
?
1989 "disallows" : "allows");
1993 os_memset(wpa_s
->p2p_ip_addr_info
, 0, sizeof(wpa_s
->p2p_ip_addr_info
));
1994 #endif /* CONFIG_P2P */
1997 if (is_hs20_network(wpa_s
, ssid
, bss
)) {
1998 struct wpabuf
*hs20
;
1999 hs20
= wpabuf_alloc(20);
2001 int pps_mo_id
= hs20_get_pps_mo_id(wpa_s
, ssid
);
2004 wpas_hs20_add_indication(hs20
, pps_mo_id
);
2005 len
= sizeof(wpa_ie
) - wpa_ie_len
;
2006 if (wpabuf_len(hs20
) <= len
) {
2007 os_memcpy(wpa_ie
+ wpa_ie_len
,
2008 wpabuf_head(hs20
), wpabuf_len(hs20
));
2009 wpa_ie_len
+= wpabuf_len(hs20
);
2014 #endif /* CONFIG_HS20 */
2017 * Workaround: Add Extended Capabilities element only if the AP
2018 * included this element in Beacon/Probe Response frames. Some older
2019 * APs seem to have interoperability issues if this element is
2020 * included, so while the standard may require us to include the
2021 * element in all cases, it is justifiable to skip it to avoid
2022 * interoperability issues.
2024 if (!bss
|| wpa_bss_get_ie(bss
, WLAN_EID_EXT_CAPAB
)) {
2027 ext_capab_len
= wpas_build_ext_capab(wpa_s
, ext_capab
,
2029 if (ext_capab_len
> 0) {
2031 if (wpa_ie_len
> 0 && pos
[0] == WLAN_EID_RSN
)
2033 os_memmove(pos
+ ext_capab_len
, pos
,
2034 wpa_ie_len
- (pos
- wpa_ie
));
2035 wpa_ie_len
+= ext_capab_len
;
2036 os_memcpy(pos
, ext_capab
, ext_capab_len
);
2040 if (wpa_s
->vendor_elem
[VENDOR_ELEM_ASSOC_REQ
]) {
2041 struct wpabuf
*buf
= wpa_s
->vendor_elem
[VENDOR_ELEM_ASSOC_REQ
];
2044 len
= sizeof(wpa_ie
) - wpa_ie_len
;
2045 if (wpabuf_len(buf
) <= len
) {
2046 os_memcpy(wpa_ie
+ wpa_ie_len
,
2047 wpabuf_head(buf
), wpabuf_len(buf
));
2048 wpa_ie_len
+= wpabuf_len(buf
);
2052 wpa_clear_keys(wpa_s
, bss
? bss
->bssid
: NULL
);
2054 cipher_pairwise
= wpa_s
->pairwise_cipher
;
2055 cipher_group
= wpa_s
->group_cipher
;
2056 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_NONE
||
2057 wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
2058 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_NONE
)
2060 if (wpa_set_wep_keys(wpa_s
, ssid
)) {
2065 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPS
)
2068 #ifdef IEEE8021X_EAPOL
2069 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
2070 if ((ssid
->eapol_flags
&
2071 (EAPOL_FLAG_REQUIRE_KEY_UNICAST
|
2072 EAPOL_FLAG_REQUIRE_KEY_BROADCAST
)) == 0 &&
2076 /* Assume that dynamic WEP-104 keys will be used and
2077 * set cipher suites in order for drivers to expect
2079 cipher_pairwise
= cipher_group
= WPA_CIPHER_WEP104
;
2082 #endif /* IEEE8021X_EAPOL */
2084 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPA_NONE
) {
2085 /* Set the key before (and later after) association */
2086 wpa_supplicant_set_wpa_none_key(wpa_s
, ssid
);
2089 wpa_supplicant_set_state(wpa_s
, WPA_ASSOCIATING
);
2091 params
.ssid
= bss
->ssid
;
2092 params
.ssid_len
= bss
->ssid_len
;
2093 if (!wpas_driver_bss_selection(wpa_s
) || ssid
->bssid_set
) {
2094 wpa_printf(MSG_DEBUG
, "Limit connection to BSSID "
2095 MACSTR
" freq=%u MHz based on scan results "
2097 MAC2STR(bss
->bssid
), bss
->freq
,
2099 params
.bssid
= bss
->bssid
;
2100 params
.freq
.freq
= bss
->freq
;
2102 params
.bssid_hint
= bss
->bssid
;
2103 params
.freq_hint
= bss
->freq
;
2105 params
.ssid
= ssid
->ssid
;
2106 params
.ssid_len
= ssid
->ssid_len
;
2109 if (ssid
->mode
== WPAS_MODE_IBSS
&& ssid
->bssid_set
&&
2110 wpa_s
->conf
->ap_scan
== 2) {
2111 params
.bssid
= ssid
->bssid
;
2112 params
.fixed_bssid
= 1;
2115 /* Initial frequency for IBSS/mesh */
2116 if ((ssid
->mode
== WPAS_MODE_IBSS
|| ssid
->mode
== WPAS_MODE_MESH
) &&
2117 ssid
->frequency
> 0 && params
.freq
.freq
== 0)
2118 ibss_mesh_setup_freq(wpa_s
, ssid
, ¶ms
.freq
);
2120 if (ssid
->mode
== WPAS_MODE_IBSS
) {
2121 if (ssid
->beacon_int
)
2122 params
.beacon_int
= ssid
->beacon_int
;
2124 params
.beacon_int
= wpa_s
->conf
->beacon_int
;
2127 params
.wpa_ie
= wpa_ie
;
2128 params
.wpa_ie_len
= wpa_ie_len
;
2129 params
.pairwise_suite
= cipher_pairwise
;
2130 params
.group_suite
= cipher_group
;
2131 params
.key_mgmt_suite
= wpa_s
->key_mgmt
;
2132 params
.wpa_proto
= wpa_s
->wpa_proto
;
2133 params
.auth_alg
= algs
;
2134 params
.mode
= ssid
->mode
;
2135 params
.bg_scan_period
= ssid
->bg_scan_period
;
2136 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
2137 if (ssid
->wep_key_len
[i
])
2138 params
.wep_key
[i
] = ssid
->wep_key
[i
];
2139 params
.wep_key_len
[i
] = ssid
->wep_key_len
[i
];
2141 params
.wep_tx_keyidx
= ssid
->wep_tx_keyidx
;
2143 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_4WAY_HANDSHAKE
) &&
2144 (params
.key_mgmt_suite
== WPA_KEY_MGMT_PSK
||
2145 params
.key_mgmt_suite
== WPA_KEY_MGMT_FT_PSK
)) {
2146 params
.passphrase
= ssid
->passphrase
;
2148 params
.psk
= ssid
->psk
;
2151 if (wpa_s
->conf
->key_mgmt_offload
) {
2152 if (params
.key_mgmt_suite
== WPA_KEY_MGMT_IEEE8021X
||
2153 params
.key_mgmt_suite
== WPA_KEY_MGMT_IEEE8021X_SHA256
||
2154 params
.key_mgmt_suite
== WPA_KEY_MGMT_IEEE8021X_SUITE_B
||
2155 params
.key_mgmt_suite
== WPA_KEY_MGMT_IEEE8021X_SUITE_B_192
)
2156 params
.req_key_mgmt_offload
=
2157 ssid
->proactive_key_caching
< 0 ?
2158 wpa_s
->conf
->okc
: ssid
->proactive_key_caching
;
2160 params
.req_key_mgmt_offload
= 1;
2162 if ((params
.key_mgmt_suite
== WPA_KEY_MGMT_PSK
||
2163 params
.key_mgmt_suite
== WPA_KEY_MGMT_PSK_SHA256
||
2164 params
.key_mgmt_suite
== WPA_KEY_MGMT_FT_PSK
) &&
2166 params
.psk
= ssid
->psk
;
2169 params
.drop_unencrypted
= use_crypt
;
2171 #ifdef CONFIG_IEEE80211W
2172 params
.mgmt_frame_protection
=
2173 ssid
->ieee80211w
== MGMT_FRAME_PROTECTION_DEFAULT
?
2174 wpa_s
->conf
->pmf
: ssid
->ieee80211w
;
2175 if (params
.mgmt_frame_protection
!= NO_MGMT_FRAME_PROTECTION
&& bss
) {
2176 const u8
*rsn
= wpa_bss_get_ie(bss
, WLAN_EID_RSN
);
2177 struct wpa_ie_data ie
;
2178 if (rsn
&& wpa_parse_wpa_ie(rsn
, 2 + rsn
[1], &ie
) == 0 &&
2180 (WPA_CAPABILITY_MFPC
| WPA_CAPABILITY_MFPR
)) {
2181 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Selected AP supports "
2182 "MFP: require MFP");
2183 params
.mgmt_frame_protection
=
2184 MGMT_FRAME_PROTECTION_REQUIRED
;
2187 #endif /* CONFIG_IEEE80211W */
2189 params
.p2p
= ssid
->p2p_group
;
2191 if (wpa_s
->parent
->set_sta_uapsd
)
2192 params
.uapsd
= wpa_s
->parent
->sta_uapsd
;
2196 #ifdef CONFIG_HT_OVERRIDES
2197 os_memset(&htcaps
, 0, sizeof(htcaps
));
2198 os_memset(&htcaps_mask
, 0, sizeof(htcaps_mask
));
2199 params
.htcaps
= (u8
*) &htcaps
;
2200 params
.htcaps_mask
= (u8
*) &htcaps_mask
;
2201 wpa_supplicant_apply_ht_overrides(wpa_s
, ssid
, ¶ms
);
2202 #endif /* CONFIG_HT_OVERRIDES */
2203 #ifdef CONFIG_VHT_OVERRIDES
2204 os_memset(&vhtcaps
, 0, sizeof(vhtcaps
));
2205 os_memset(&vhtcaps_mask
, 0, sizeof(vhtcaps_mask
));
2206 params
.vhtcaps
= &vhtcaps
;
2207 params
.vhtcaps_mask
= &vhtcaps_mask
;
2208 wpa_supplicant_apply_vht_overrides(wpa_s
, ssid
, ¶ms
);
2209 #endif /* CONFIG_VHT_OVERRIDES */
2213 * If multi-channel concurrency is not supported, check for any
2214 * frequency conflict. In case of any frequency conflict, remove the
2215 * least prioritized connection.
2217 if (wpa_s
->num_multichan_concurrent
< 2) {
2219 num
= get_shared_radio_freqs(wpa_s
, &freq
, 1);
2220 if (num
> 0 && freq
> 0 && freq
!= params
.freq
.freq
) {
2221 wpa_printf(MSG_DEBUG
,
2222 "Assoc conflicting freq found (%d != %d)",
2223 freq
, params
.freq
.freq
);
2224 if (wpas_p2p_handle_frequency_conflicts(
2225 wpa_s
, params
.freq
.freq
, ssid
) < 0) {
2226 wpas_connect_work_done(wpa_s
);
2231 #endif /* CONFIG_P2P */
2233 ret
= wpa_drv_associate(wpa_s
, ¶ms
);
2235 wpa_msg(wpa_s
, MSG_INFO
, "Association request to the driver "
2237 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_SANE_ERROR_CODES
) {
2239 * The driver is known to mean what is saying, so we
2240 * can stop right here; the association will not
2243 wpas_connection_failed(wpa_s
, wpa_s
->pending_bssid
);
2244 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
2245 os_memset(wpa_s
->pending_bssid
, 0, ETH_ALEN
);
2248 /* try to continue anyway; new association will be tried again
2253 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPA_NONE
) {
2254 /* Set the key after the association just in case association
2255 * cleared the previously configured key. */
2256 wpa_supplicant_set_wpa_none_key(wpa_s
, ssid
);
2257 /* No need to timeout authentication since there is no key
2259 wpa_supplicant_cancel_auth_timeout(wpa_s
);
2260 wpa_supplicant_set_state(wpa_s
, WPA_COMPLETED
);
2261 #ifdef CONFIG_IBSS_RSN
2262 } else if (ssid
->mode
== WPAS_MODE_IBSS
&&
2263 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_NONE
&&
2264 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_WPA_NONE
) {
2266 * RSN IBSS authentication is per-STA and we can disable the
2267 * per-BSSID authentication.
2269 wpa_supplicant_cancel_auth_timeout(wpa_s
);
2270 #endif /* CONFIG_IBSS_RSN */
2272 /* Timeout for IEEE 802.11 authentication and association */
2276 /* give IBSS a bit more time */
2277 timeout
= ssid
->mode
== WPAS_MODE_IBSS
? 10 : 5;
2278 } else if (wpa_s
->conf
->ap_scan
== 1) {
2279 /* give IBSS a bit more time */
2280 timeout
= ssid
->mode
== WPAS_MODE_IBSS
? 20 : 10;
2282 wpa_supplicant_req_auth_timeout(wpa_s
, timeout
, 0);
2286 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC
)) {
2287 /* Set static WEP keys again */
2288 wpa_set_wep_keys(wpa_s
, ssid
);
2291 if (wpa_s
->current_ssid
&& wpa_s
->current_ssid
!= ssid
) {
2293 * Do not allow EAP session resumption between different
2294 * network configurations.
2296 eapol_sm_invalidate_cached_session(wpa_s
->eapol
);
2298 old_ssid
= wpa_s
->current_ssid
;
2299 wpa_s
->current_ssid
= ssid
;
2300 wpa_s
->current_bss
= bss
;
2301 wpa_supplicant_rsn_supp_set_config(wpa_s
, wpa_s
->current_ssid
);
2302 wpa_supplicant_initiate_eapol(wpa_s
);
2303 if (old_ssid
!= wpa_s
->current_ssid
)
2304 wpas_notify_network_changed(wpa_s
);
2308 static void wpa_supplicant_clear_connection(struct wpa_supplicant
*wpa_s
,
2311 struct wpa_ssid
*old_ssid
;
2313 wpas_connect_work_done(wpa_s
);
2314 wpa_clear_keys(wpa_s
, addr
);
2315 old_ssid
= wpa_s
->current_ssid
;
2316 wpa_supplicant_mark_disassoc(wpa_s
);
2317 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
2318 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
2319 if (old_ssid
!= wpa_s
->current_ssid
)
2320 wpas_notify_network_changed(wpa_s
);
2321 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
, NULL
);
2326 * wpa_supplicant_deauthenticate - Deauthenticate the current connection
2327 * @wpa_s: Pointer to wpa_supplicant data
2328 * @reason_code: IEEE 802.11 reason code for the deauthenticate frame
2330 * This function is used to request %wpa_supplicant to deauthenticate from the
2333 void wpa_supplicant_deauthenticate(struct wpa_supplicant
*wpa_s
,
2337 union wpa_event_data event
;
2340 wpa_dbg(wpa_s
, MSG_DEBUG
, "Request to deauthenticate - bssid=" MACSTR
2341 " pending_bssid=" MACSTR
" reason=%d state=%s",
2342 MAC2STR(wpa_s
->bssid
), MAC2STR(wpa_s
->pending_bssid
),
2343 reason_code
, wpa_supplicant_state_txt(wpa_s
->wpa_state
));
2345 if (!is_zero_ether_addr(wpa_s
->bssid
))
2346 addr
= wpa_s
->bssid
;
2347 else if (!is_zero_ether_addr(wpa_s
->pending_bssid
) &&
2348 (wpa_s
->wpa_state
== WPA_AUTHENTICATING
||
2349 wpa_s
->wpa_state
== WPA_ASSOCIATING
))
2350 addr
= wpa_s
->pending_bssid
;
2351 else if (wpa_s
->wpa_state
== WPA_ASSOCIATING
) {
2353 * When using driver-based BSS selection, we may not know the
2354 * BSSID with which we are currently trying to associate. We
2355 * need to notify the driver of this disconnection even in such
2356 * a case, so use the all zeros address here.
2358 addr
= wpa_s
->bssid
;
2363 wpa_tdls_teardown_peers(wpa_s
->wpa
);
2364 #endif /* CONFIG_TDLS */
2368 wpa_msg_ctrl(wpa_s
, MSG_INFO
, MESH_GROUP_REMOVED
"%s",
2370 wpa_supplicant_leave_mesh(wpa_s
);
2372 #endif /* CONFIG_MESH */
2375 wpa_drv_deauthenticate(wpa_s
, addr
, reason_code
);
2376 os_memset(&event
, 0, sizeof(event
));
2377 event
.deauth_info
.reason_code
= (u16
) reason_code
;
2378 event
.deauth_info
.locally_generated
= 1;
2379 wpa_supplicant_event(wpa_s
, EVENT_DEAUTH
, &event
);
2384 wpa_supplicant_clear_connection(wpa_s
, addr
);
2387 static void wpa_supplicant_enable_one_network(struct wpa_supplicant
*wpa_s
,
2388 struct wpa_ssid
*ssid
)
2390 if (!ssid
|| !ssid
->disabled
|| ssid
->disabled
== 2)
2394 wpas_clear_temp_disabled(wpa_s
, ssid
, 1);
2395 wpas_notify_network_enabled_changed(wpa_s
, ssid
);
2398 * Try to reassociate since there is no current configuration and a new
2399 * network was made available.
2401 if (!wpa_s
->current_ssid
&& !wpa_s
->disconnected
)
2402 wpa_s
->reassociate
= 1;
2407 * wpa_supplicant_enable_network - Mark a configured network as enabled
2408 * @wpa_s: wpa_supplicant structure for a network interface
2409 * @ssid: wpa_ssid structure for a configured network or %NULL
2411 * Enables the specified network or all networks if no network specified.
2413 void wpa_supplicant_enable_network(struct wpa_supplicant
*wpa_s
,
2414 struct wpa_ssid
*ssid
)
2417 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
)
2418 wpa_supplicant_enable_one_network(wpa_s
, ssid
);
2420 wpa_supplicant_enable_one_network(wpa_s
, ssid
);
2422 if (wpa_s
->reassociate
&& !wpa_s
->disconnected
) {
2423 if (wpa_s
->sched_scanning
) {
2424 wpa_printf(MSG_DEBUG
, "Stop ongoing sched_scan to add "
2425 "new network to scan filters");
2426 wpa_supplicant_cancel_sched_scan(wpa_s
);
2429 if (wpa_supplicant_fast_associate(wpa_s
) != 1)
2430 wpa_supplicant_req_scan(wpa_s
, 0, 0);
2436 * wpa_supplicant_disable_network - Mark a configured network as disabled
2437 * @wpa_s: wpa_supplicant structure for a network interface
2438 * @ssid: wpa_ssid structure for a configured network or %NULL
2440 * Disables the specified network or all networks if no network specified.
2442 void wpa_supplicant_disable_network(struct wpa_supplicant
*wpa_s
,
2443 struct wpa_ssid
*ssid
)
2445 struct wpa_ssid
*other_ssid
;
2449 if (wpa_s
->sched_scanning
)
2450 wpa_supplicant_cancel_sched_scan(wpa_s
);
2452 for (other_ssid
= wpa_s
->conf
->ssid
; other_ssid
;
2453 other_ssid
= other_ssid
->next
) {
2454 was_disabled
= other_ssid
->disabled
;
2455 if (was_disabled
== 2)
2456 continue; /* do not change persistent P2P group
2459 other_ssid
->disabled
= 1;
2461 if (was_disabled
!= other_ssid
->disabled
)
2462 wpas_notify_network_enabled_changed(
2465 if (wpa_s
->current_ssid
)
2466 wpa_supplicant_deauthenticate(
2467 wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
2468 } else if (ssid
->disabled
!= 2) {
2469 if (ssid
== wpa_s
->current_ssid
)
2470 wpa_supplicant_deauthenticate(
2471 wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
2473 was_disabled
= ssid
->disabled
;
2477 if (was_disabled
!= ssid
->disabled
) {
2478 wpas_notify_network_enabled_changed(wpa_s
, ssid
);
2479 if (wpa_s
->sched_scanning
) {
2480 wpa_printf(MSG_DEBUG
, "Stop ongoing sched_scan "
2481 "to remove network from filters");
2482 wpa_supplicant_cancel_sched_scan(wpa_s
);
2483 wpa_supplicant_req_scan(wpa_s
, 0, 0);
2491 * wpa_supplicant_select_network - Attempt association with a network
2492 * @wpa_s: wpa_supplicant structure for a network interface
2493 * @ssid: wpa_ssid structure for a configured network or %NULL for any network
2495 void wpa_supplicant_select_network(struct wpa_supplicant
*wpa_s
,
2496 struct wpa_ssid
*ssid
)
2499 struct wpa_ssid
*other_ssid
;
2500 int disconnected
= 0;
2502 if (ssid
&& ssid
!= wpa_s
->current_ssid
&& wpa_s
->current_ssid
) {
2503 wpa_supplicant_deauthenticate(
2504 wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
2509 wpas_clear_temp_disabled(wpa_s
, ssid
, 1);
2512 * Mark all other networks disabled or mark all networks enabled if no
2513 * network specified.
2515 for (other_ssid
= wpa_s
->conf
->ssid
; other_ssid
;
2516 other_ssid
= other_ssid
->next
) {
2517 int was_disabled
= other_ssid
->disabled
;
2518 if (was_disabled
== 2)
2519 continue; /* do not change persistent P2P group data */
2521 other_ssid
->disabled
= ssid
? (ssid
->id
!= other_ssid
->id
) : 0;
2522 if (was_disabled
&& !other_ssid
->disabled
)
2523 wpas_clear_temp_disabled(wpa_s
, other_ssid
, 0);
2525 if (was_disabled
!= other_ssid
->disabled
)
2526 wpas_notify_network_enabled_changed(wpa_s
, other_ssid
);
2529 if (ssid
&& ssid
== wpa_s
->current_ssid
&& wpa_s
->current_ssid
) {
2530 /* We are already associated with the selected network */
2531 wpa_printf(MSG_DEBUG
, "Already associated with the "
2532 "selected network - do nothing");
2537 wpa_s
->current_ssid
= ssid
;
2538 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
2539 wpa_s
->connect_without_scan
=
2540 (ssid
->mode
== WPAS_MODE_MESH
) ? ssid
: NULL
;
2542 wpa_s
->connect_without_scan
= NULL
;
2545 wpa_s
->disconnected
= 0;
2546 wpa_s
->reassociate
= 1;
2548 if (wpa_s
->connect_without_scan
||
2549 wpa_supplicant_fast_associate(wpa_s
) != 1)
2550 wpa_supplicant_req_scan(wpa_s
, 0, disconnected
? 100000 : 0);
2553 wpas_notify_network_selected(wpa_s
, ssid
);
2558 * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path
2559 * @wpa_s: wpa_supplicant structure for a network interface
2560 * @pkcs11_engine_path: PKCS #11 engine path or NULL
2561 * @pkcs11_module_path: PKCS #11 module path or NULL
2562 * Returns: 0 on success; -1 on failure
2564 * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid
2565 * path. If resetting the EAPOL state machine with the new PKCS #11 engine and
2566 * module path fails the paths will be reset to the default value (NULL).
2568 int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant
*wpa_s
,
2569 const char *pkcs11_engine_path
,
2570 const char *pkcs11_module_path
)
2572 char *pkcs11_engine_path_copy
= NULL
;
2573 char *pkcs11_module_path_copy
= NULL
;
2575 if (pkcs11_engine_path
!= NULL
) {
2576 pkcs11_engine_path_copy
= os_strdup(pkcs11_engine_path
);
2577 if (pkcs11_engine_path_copy
== NULL
)
2580 if (pkcs11_module_path
!= NULL
) {
2581 pkcs11_module_path_copy
= os_strdup(pkcs11_module_path
);
2582 if (pkcs11_module_path_copy
== NULL
) {
2583 os_free(pkcs11_engine_path_copy
);
2588 os_free(wpa_s
->conf
->pkcs11_engine_path
);
2589 os_free(wpa_s
->conf
->pkcs11_module_path
);
2590 wpa_s
->conf
->pkcs11_engine_path
= pkcs11_engine_path_copy
;
2591 wpa_s
->conf
->pkcs11_module_path
= pkcs11_module_path_copy
;
2593 wpa_sm_set_eapol(wpa_s
->wpa
, NULL
);
2594 eapol_sm_deinit(wpa_s
->eapol
);
2595 wpa_s
->eapol
= NULL
;
2596 if (wpa_supplicant_init_eapol(wpa_s
)) {
2597 /* Error -> Reset paths to the default value (NULL) once. */
2598 if (pkcs11_engine_path
!= NULL
&& pkcs11_module_path
!= NULL
)
2599 wpas_set_pkcs11_engine_and_module_path(wpa_s
, NULL
,
2604 wpa_sm_set_eapol(wpa_s
->wpa
, wpa_s
->eapol
);
2611 * wpa_supplicant_set_ap_scan - Set AP scan mode for interface
2612 * @wpa_s: wpa_supplicant structure for a network interface
2613 * @ap_scan: AP scan mode
2614 * Returns: 0 if succeed or -1 if ap_scan has an invalid value
2617 int wpa_supplicant_set_ap_scan(struct wpa_supplicant
*wpa_s
, int ap_scan
)
2622 if (ap_scan
< 0 || ap_scan
> 2)
2626 if (ap_scan
== 2 && ap_scan
!= wpa_s
->conf
->ap_scan
&&
2627 wpa_s
->wpa_state
>= WPA_ASSOCIATING
&&
2628 wpa_s
->wpa_state
< WPA_COMPLETED
) {
2629 wpa_printf(MSG_ERROR
, "ap_scan = %d (%d) rejected while "
2630 "associating", wpa_s
->conf
->ap_scan
, ap_scan
);
2633 #endif /* ANDROID */
2635 old_ap_scan
= wpa_s
->conf
->ap_scan
;
2636 wpa_s
->conf
->ap_scan
= ap_scan
;
2638 if (old_ap_scan
!= wpa_s
->conf
->ap_scan
)
2639 wpas_notify_ap_scan_changed(wpa_s
);
2646 * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age
2647 * @wpa_s: wpa_supplicant structure for a network interface
2648 * @expire_age: Expiration age in seconds
2649 * Returns: 0 if succeed or -1 if expire_age has an invalid value
2652 int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant
*wpa_s
,
2653 unsigned int bss_expire_age
)
2655 if (bss_expire_age
< 10) {
2656 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid bss expiration age %u",
2660 wpa_msg(wpa_s
, MSG_DEBUG
, "Setting bss expiration age: %d sec",
2662 wpa_s
->conf
->bss_expiration_age
= bss_expire_age
;
2669 * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count
2670 * @wpa_s: wpa_supplicant structure for a network interface
2671 * @expire_count: number of scans after which an unseen BSS is reclaimed
2672 * Returns: 0 if succeed or -1 if expire_count has an invalid value
2675 int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant
*wpa_s
,
2676 unsigned int bss_expire_count
)
2678 if (bss_expire_count
< 1) {
2679 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid bss expiration count %u",
2683 wpa_msg(wpa_s
, MSG_DEBUG
, "Setting bss expiration scan count: %u",
2685 wpa_s
->conf
->bss_expiration_scan_count
= bss_expire_count
;
2692 * wpa_supplicant_set_scan_interval - Set scan interval
2693 * @wpa_s: wpa_supplicant structure for a network interface
2694 * @scan_interval: scan interval in seconds
2695 * Returns: 0 if succeed or -1 if scan_interval has an invalid value
2698 int wpa_supplicant_set_scan_interval(struct wpa_supplicant
*wpa_s
,
2701 if (scan_interval
< 0) {
2702 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid scan interval %d",
2706 wpa_msg(wpa_s
, MSG_DEBUG
, "Setting scan interval: %d sec",
2708 wpa_supplicant_update_scan_int(wpa_s
, scan_interval
);
2715 * wpa_supplicant_set_debug_params - Set global debug params
2716 * @global: wpa_global structure
2717 * @debug_level: debug level
2718 * @debug_timestamp: determines if show timestamp in debug data
2719 * @debug_show_keys: determines if show keys in debug data
2720 * Returns: 0 if succeed or -1 if debug_level has wrong value
2722 int wpa_supplicant_set_debug_params(struct wpa_global
*global
, int debug_level
,
2723 int debug_timestamp
, int debug_show_keys
)
2726 int old_level
, old_timestamp
, old_show_keys
;
2728 /* check for allowed debuglevels */
2729 if (debug_level
!= MSG_EXCESSIVE
&&
2730 debug_level
!= MSG_MSGDUMP
&&
2731 debug_level
!= MSG_DEBUG
&&
2732 debug_level
!= MSG_INFO
&&
2733 debug_level
!= MSG_WARNING
&&
2734 debug_level
!= MSG_ERROR
)
2737 old_level
= wpa_debug_level
;
2738 old_timestamp
= wpa_debug_timestamp
;
2739 old_show_keys
= wpa_debug_show_keys
;
2741 wpa_debug_level
= debug_level
;
2742 wpa_debug_timestamp
= debug_timestamp
? 1 : 0;
2743 wpa_debug_show_keys
= debug_show_keys
? 1 : 0;
2745 if (wpa_debug_level
!= old_level
)
2746 wpas_notify_debug_level_changed(global
);
2747 if (wpa_debug_timestamp
!= old_timestamp
)
2748 wpas_notify_debug_timestamp_changed(global
);
2749 if (wpa_debug_show_keys
!= old_show_keys
)
2750 wpas_notify_debug_show_keys_changed(global
);
2757 * wpa_supplicant_get_ssid - Get a pointer to the current network structure
2758 * @wpa_s: Pointer to wpa_supplicant data
2759 * Returns: A pointer to the current network structure or %NULL on failure
2761 struct wpa_ssid
* wpa_supplicant_get_ssid(struct wpa_supplicant
*wpa_s
)
2763 struct wpa_ssid
*entry
;
2764 u8 ssid
[MAX_SSID_LEN
];
2770 res
= wpa_drv_get_ssid(wpa_s
, ssid
);
2772 wpa_msg(wpa_s
, MSG_WARNING
, "Could not read SSID from "
2778 if (wpa_drv_get_bssid(wpa_s
, bssid
) < 0) {
2779 wpa_msg(wpa_s
, MSG_WARNING
, "Could not read BSSID from "
2784 wired
= wpa_s
->conf
->ap_scan
== 0 &&
2785 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_WIRED
);
2787 entry
= wpa_s
->conf
->ssid
;
2789 if (!wpas_network_disabled(wpa_s
, entry
) &&
2790 ((ssid_len
== entry
->ssid_len
&&
2791 os_memcmp(ssid
, entry
->ssid
, ssid_len
) == 0) || wired
) &&
2792 (!entry
->bssid_set
||
2793 os_memcmp(bssid
, entry
->bssid
, ETH_ALEN
) == 0))
2796 if (!wpas_network_disabled(wpa_s
, entry
) &&
2797 (entry
->key_mgmt
& WPA_KEY_MGMT_WPS
) &&
2798 (entry
->ssid
== NULL
|| entry
->ssid_len
== 0) &&
2799 (!entry
->bssid_set
||
2800 os_memcmp(bssid
, entry
->bssid
, ETH_ALEN
) == 0))
2802 #endif /* CONFIG_WPS */
2804 if (!wpas_network_disabled(wpa_s
, entry
) && entry
->bssid_set
&&
2805 entry
->ssid_len
== 0 &&
2806 os_memcmp(bssid
, entry
->bssid
, ETH_ALEN
) == 0)
2809 entry
= entry
->next
;
2816 static int select_driver(struct wpa_supplicant
*wpa_s
, int i
)
2818 struct wpa_global
*global
= wpa_s
->global
;
2820 if (wpa_drivers
[i
]->global_init
&& global
->drv_priv
[i
] == NULL
) {
2821 global
->drv_priv
[i
] = wpa_drivers
[i
]->global_init();
2822 if (global
->drv_priv
[i
] == NULL
) {
2823 wpa_printf(MSG_ERROR
, "Failed to initialize driver "
2824 "'%s'", wpa_drivers
[i
]->name
);
2829 wpa_s
->driver
= wpa_drivers
[i
];
2830 wpa_s
->global_drv_priv
= global
->drv_priv
[i
];
2836 static int wpa_supplicant_set_driver(struct wpa_supplicant
*wpa_s
,
2841 const char *pos
, *driver
= name
;
2846 if (wpa_drivers
[0] == NULL
) {
2847 wpa_msg(wpa_s
, MSG_ERROR
, "No driver interfaces build into "
2853 /* default to first driver in the list */
2854 return select_driver(wpa_s
, 0);
2858 pos
= os_strchr(driver
, ',');
2862 len
= os_strlen(driver
);
2864 for (i
= 0; wpa_drivers
[i
]; i
++) {
2865 if (os_strlen(wpa_drivers
[i
]->name
) == len
&&
2866 os_strncmp(driver
, wpa_drivers
[i
]->name
, len
) ==
2868 /* First driver that succeeds wins */
2869 if (select_driver(wpa_s
, i
) == 0)
2877 wpa_msg(wpa_s
, MSG_ERROR
, "Unsupported driver '%s'", name
);
2883 * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant
2884 * @ctx: Context pointer (wpa_s); this is the ctx variable registered
2885 * with struct wpa_driver_ops::init()
2886 * @src_addr: Source address of the EAPOL frame
2887 * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header)
2888 * @len: Length of the EAPOL data
2890 * This function is called for each received EAPOL frame. Most driver
2891 * interfaces rely on more generic OS mechanism for receiving frames through
2892 * l2_packet, but if such a mechanism is not available, the driver wrapper may
2893 * take care of received EAPOL frames and deliver them to the core supplicant
2894 * code by calling this function.
2896 void wpa_supplicant_rx_eapol(void *ctx
, const u8
*src_addr
,
2897 const u8
*buf
, size_t len
)
2899 struct wpa_supplicant
*wpa_s
= ctx
;
2901 wpa_dbg(wpa_s
, MSG_DEBUG
, "RX EAPOL from " MACSTR
, MAC2STR(src_addr
));
2902 wpa_hexdump(MSG_MSGDUMP
, "RX EAPOL", buf
, len
);
2904 #ifdef CONFIG_PEERKEY
2905 if (wpa_s
->wpa_state
> WPA_ASSOCIATED
&& wpa_s
->current_ssid
&&
2906 wpa_s
->current_ssid
->peerkey
&&
2907 !(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_4WAY_HANDSHAKE
) &&
2908 wpa_sm_rx_eapol_peerkey(wpa_s
->wpa
, src_addr
, buf
, len
) == 1) {
2909 wpa_dbg(wpa_s
, MSG_DEBUG
, "RSN: Processed PeerKey EAPOL-Key");
2912 #endif /* CONFIG_PEERKEY */
2914 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
||
2915 (wpa_s
->last_eapol_matches_bssid
&&
2918 #endif /* CONFIG_AP */
2919 os_memcmp(src_addr
, wpa_s
->bssid
, ETH_ALEN
) != 0)) {
2921 * There is possible race condition between receiving the
2922 * association event and the EAPOL frame since they are coming
2923 * through different paths from the driver. In order to avoid
2924 * issues in trying to process the EAPOL frame before receiving
2925 * association information, lets queue it for processing until
2926 * the association event is received. This may also be needed in
2927 * driver-based roaming case, so also use src_addr != BSSID as a
2928 * trigger if we have previously confirmed that the
2929 * Authenticator uses BSSID as the src_addr (which is not the
2930 * case with wired IEEE 802.1X).
2932 wpa_dbg(wpa_s
, MSG_DEBUG
, "Not associated - Delay processing "
2933 "of received EAPOL frame (state=%s bssid=" MACSTR
")",
2934 wpa_supplicant_state_txt(wpa_s
->wpa_state
),
2935 MAC2STR(wpa_s
->bssid
));
2936 wpabuf_free(wpa_s
->pending_eapol_rx
);
2937 wpa_s
->pending_eapol_rx
= wpabuf_alloc_copy(buf
, len
);
2938 if (wpa_s
->pending_eapol_rx
) {
2939 os_get_reltime(&wpa_s
->pending_eapol_rx_time
);
2940 os_memcpy(wpa_s
->pending_eapol_rx_src
, src_addr
,
2946 wpa_s
->last_eapol_matches_bssid
=
2947 os_memcmp(src_addr
, wpa_s
->bssid
, ETH_ALEN
) == 0;
2950 if (wpa_s
->ap_iface
) {
2951 wpa_supplicant_ap_rx_eapol(wpa_s
, src_addr
, buf
, len
);
2954 #endif /* CONFIG_AP */
2956 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_NONE
) {
2957 wpa_dbg(wpa_s
, MSG_DEBUG
, "Ignored received EAPOL frame since "
2958 "no key management is configured");
2962 if (wpa_s
->eapol_received
== 0 &&
2963 (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_4WAY_HANDSHAKE
) ||
2964 !wpa_key_mgmt_wpa_psk(wpa_s
->key_mgmt
) ||
2965 wpa_s
->wpa_state
!= WPA_COMPLETED
) &&
2966 (wpa_s
->current_ssid
== NULL
||
2967 wpa_s
->current_ssid
->mode
!= IEEE80211_MODE_IBSS
)) {
2968 /* Timeout for completing IEEE 802.1X and WPA authentication */
2969 wpa_supplicant_req_auth_timeout(
2971 (wpa_key_mgmt_wpa_ieee8021x(wpa_s
->key_mgmt
) ||
2972 wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
||
2973 wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPS
) ?
2976 wpa_s
->eapol_received
++;
2978 if (wpa_s
->countermeasures
) {
2979 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Countermeasures - dropped "
2984 #ifdef CONFIG_IBSS_RSN
2985 if (wpa_s
->current_ssid
&&
2986 wpa_s
->current_ssid
->mode
== WPAS_MODE_IBSS
) {
2987 ibss_rsn_rx_eapol(wpa_s
->ibss_rsn
, src_addr
, buf
, len
);
2990 #endif /* CONFIG_IBSS_RSN */
2992 /* Source address of the incoming EAPOL frame could be compared to the
2993 * current BSSID. However, it is possible that a centralized
2994 * Authenticator could be using another MAC address than the BSSID of
2995 * an AP, so just allow any address to be used for now. The replies are
2996 * still sent to the current BSSID (if available), though. */
2998 os_memcpy(wpa_s
->last_eapol_src
, src_addr
, ETH_ALEN
);
2999 if (!wpa_key_mgmt_wpa_psk(wpa_s
->key_mgmt
) &&
3000 eapol_sm_rx_eapol(wpa_s
->eapol
, src_addr
, buf
, len
) > 0)
3002 wpa_drv_poll(wpa_s
);
3003 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_4WAY_HANDSHAKE
))
3004 wpa_sm_rx_eapol(wpa_s
->wpa
, src_addr
, buf
, len
);
3005 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s
->key_mgmt
)) {
3007 * Set portValid = TRUE here since we are going to skip 4-way
3008 * handshake processing which would normally set portValid. We
3009 * need this to allow the EAPOL state machines to be completed
3010 * without going through EAPOL-Key handshake.
3012 eapol_sm_notify_portValid(wpa_s
->eapol
, TRUE
);
3017 int wpa_supplicant_update_mac_addr(struct wpa_supplicant
*wpa_s
)
3019 if ((!wpa_s
->p2p_mgmt
||
3020 !(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
)) &&
3021 !(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
)) {
3022 l2_packet_deinit(wpa_s
->l2
);
3023 wpa_s
->l2
= l2_packet_init(wpa_s
->ifname
,
3024 wpa_drv_get_mac_addr(wpa_s
),
3026 wpa_supplicant_rx_eapol
, wpa_s
, 0);
3027 if (wpa_s
->l2
== NULL
)
3030 const u8
*addr
= wpa_drv_get_mac_addr(wpa_s
);
3032 os_memcpy(wpa_s
->own_addr
, addr
, ETH_ALEN
);
3035 if (wpa_s
->l2
&& l2_packet_get_own_addr(wpa_s
->l2
, wpa_s
->own_addr
)) {
3036 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to get own L2 address");
3040 wpa_sm_set_own_addr(wpa_s
->wpa
, wpa_s
->own_addr
);
3046 static void wpa_supplicant_rx_eapol_bridge(void *ctx
, const u8
*src_addr
,
3047 const u8
*buf
, size_t len
)
3049 struct wpa_supplicant
*wpa_s
= ctx
;
3050 const struct l2_ethhdr
*eth
;
3052 if (len
< sizeof(*eth
))
3054 eth
= (const struct l2_ethhdr
*) buf
;
3056 if (os_memcmp(eth
->h_dest
, wpa_s
->own_addr
, ETH_ALEN
) != 0 &&
3057 !(eth
->h_dest
[0] & 0x01)) {
3058 wpa_dbg(wpa_s
, MSG_DEBUG
, "RX EAPOL from " MACSTR
" to " MACSTR
3059 " (bridge - not for this interface - ignore)",
3060 MAC2STR(src_addr
), MAC2STR(eth
->h_dest
));
3064 wpa_dbg(wpa_s
, MSG_DEBUG
, "RX EAPOL from " MACSTR
" to " MACSTR
3065 " (bridge)", MAC2STR(src_addr
), MAC2STR(eth
->h_dest
));
3066 wpa_supplicant_rx_eapol(wpa_s
, src_addr
, buf
+ sizeof(*eth
),
3067 len
- sizeof(*eth
));
3072 * wpa_supplicant_driver_init - Initialize driver interface parameters
3073 * @wpa_s: Pointer to wpa_supplicant data
3074 * Returns: 0 on success, -1 on failure
3076 * This function is called to initialize driver interface parameters.
3077 * wpa_drv_init() must have been called before this function to initialize the
3080 int wpa_supplicant_driver_init(struct wpa_supplicant
*wpa_s
)
3082 static int interface_count
= 0;
3084 if (wpa_supplicant_update_mac_addr(wpa_s
) < 0)
3087 wpa_dbg(wpa_s
, MSG_DEBUG
, "Own MAC address: " MACSTR
,
3088 MAC2STR(wpa_s
->own_addr
));
3089 os_memcpy(wpa_s
->perm_addr
, wpa_s
->own_addr
, ETH_ALEN
);
3090 wpa_sm_set_own_addr(wpa_s
->wpa
, wpa_s
->own_addr
);
3092 if (wpa_s
->bridge_ifname
[0]) {
3093 wpa_dbg(wpa_s
, MSG_DEBUG
, "Receiving packets from bridge "
3094 "interface '%s'", wpa_s
->bridge_ifname
);
3095 wpa_s
->l2_br
= l2_packet_init(wpa_s
->bridge_ifname
,
3098 wpa_supplicant_rx_eapol_bridge
,
3100 if (wpa_s
->l2_br
== NULL
) {
3101 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to open l2_packet "
3102 "connection for the bridge interface '%s'",
3103 wpa_s
->bridge_ifname
);
3108 wpa_clear_keys(wpa_s
, NULL
);
3110 /* Make sure that TKIP countermeasures are not left enabled (could
3111 * happen if wpa_supplicant is killed during countermeasures. */
3112 wpa_drv_set_countermeasures(wpa_s
, 0);
3114 wpa_dbg(wpa_s
, MSG_DEBUG
, "RSN: flushing PMKID list in the driver");
3115 wpa_drv_flush_pmkid(wpa_s
);
3117 wpa_s
->prev_scan_ssid
= WILDCARD_SSID_SCAN
;
3118 wpa_s
->prev_scan_wildcard
= 0;
3120 if (wpa_supplicant_enabled_networks(wpa_s
)) {
3121 if (wpa_s
->wpa_state
== WPA_INTERFACE_DISABLED
) {
3122 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
3123 interface_count
= 0;
3126 if (!wpa_s
->p2p_mgmt
&&
3127 wpa_supplicant_delayed_sched_scan(wpa_s
,
3128 interface_count
% 3,
3130 wpa_supplicant_req_scan(wpa_s
, interface_count
% 3,
3132 #endif /* ANDROID */
3135 wpa_supplicant_set_state(wpa_s
, WPA_INACTIVE
);
3141 static int wpa_supplicant_daemon(const char *pid_file
)
3143 wpa_printf(MSG_DEBUG
, "Daemonize..");
3144 return os_daemonize(pid_file
);
3148 static struct wpa_supplicant
* wpa_supplicant_alloc(void)
3150 struct wpa_supplicant
*wpa_s
;
3152 wpa_s
= os_zalloc(sizeof(*wpa_s
));
3155 wpa_s
->scan_req
= INITIAL_SCAN_REQ
;
3156 wpa_s
->scan_interval
= 5;
3157 wpa_s
->new_connection
= 1;
3158 wpa_s
->parent
= wpa_s
;
3159 wpa_s
->sched_scanning
= 0;
3165 #ifdef CONFIG_HT_OVERRIDES
3167 static int wpa_set_htcap_mcs(struct wpa_supplicant
*wpa_s
,
3168 struct ieee80211_ht_capabilities
*htcaps
,
3169 struct ieee80211_ht_capabilities
*htcaps_mask
,
3172 /* parse ht_mcs into hex array */
3174 const char *tmp
= ht_mcs
;
3177 /* If ht_mcs is null, do not set anything */
3181 /* This is what we are setting in the kernel */
3182 os_memset(&htcaps
->supported_mcs_set
, 0, IEEE80211_HT_MCS_MASK_LEN
);
3184 wpa_msg(wpa_s
, MSG_DEBUG
, "set_htcap, ht_mcs -:%s:-", ht_mcs
);
3186 for (i
= 0; i
< IEEE80211_HT_MCS_MASK_LEN
; i
++) {
3188 long v
= strtol(tmp
, &end
, 16);
3190 wpa_msg(wpa_s
, MSG_DEBUG
,
3191 "htcap value[%i]: %ld end: %p tmp: %p",
3196 htcaps
->supported_mcs_set
[i
] = v
;
3199 wpa_msg(wpa_s
, MSG_ERROR
,
3200 "Failed to parse ht-mcs: %s, error: %s\n",
3201 ht_mcs
, strerror(errno
));
3207 * If we were able to parse any values, then set mask for the MCS set.
3210 os_memset(&htcaps_mask
->supported_mcs_set
, 0xff,
3211 IEEE80211_HT_MCS_MASK_LEN
- 1);
3212 /* skip the 3 reserved bits */
3213 htcaps_mask
->supported_mcs_set
[IEEE80211_HT_MCS_MASK_LEN
- 1] =
3221 static int wpa_disable_max_amsdu(struct wpa_supplicant
*wpa_s
,
3222 struct ieee80211_ht_capabilities
*htcaps
,
3223 struct ieee80211_ht_capabilities
*htcaps_mask
,
3228 wpa_msg(wpa_s
, MSG_DEBUG
, "set_disable_max_amsdu: %d", disabled
);
3233 msk
= host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE
);
3234 htcaps_mask
->ht_capabilities_info
|= msk
;
3236 htcaps
->ht_capabilities_info
&= msk
;
3238 htcaps
->ht_capabilities_info
|= msk
;
3244 static int wpa_set_ampdu_factor(struct wpa_supplicant
*wpa_s
,
3245 struct ieee80211_ht_capabilities
*htcaps
,
3246 struct ieee80211_ht_capabilities
*htcaps_mask
,
3249 wpa_msg(wpa_s
, MSG_DEBUG
, "set_ampdu_factor: %d", factor
);
3254 if (factor
< 0 || factor
> 3) {
3255 wpa_msg(wpa_s
, MSG_ERROR
, "ampdu_factor: %d out of range. "
3256 "Must be 0-3 or -1", factor
);
3260 htcaps_mask
->a_mpdu_params
|= 0x3; /* 2 bits for factor */
3261 htcaps
->a_mpdu_params
&= ~0x3;
3262 htcaps
->a_mpdu_params
|= factor
& 0x3;
3268 static int wpa_set_ampdu_density(struct wpa_supplicant
*wpa_s
,
3269 struct ieee80211_ht_capabilities
*htcaps
,
3270 struct ieee80211_ht_capabilities
*htcaps_mask
,
3273 wpa_msg(wpa_s
, MSG_DEBUG
, "set_ampdu_density: %d", density
);
3278 if (density
< 0 || density
> 7) {
3279 wpa_msg(wpa_s
, MSG_ERROR
,
3280 "ampdu_density: %d out of range. Must be 0-7 or -1.",
3285 htcaps_mask
->a_mpdu_params
|= 0x1C;
3286 htcaps
->a_mpdu_params
&= ~(0x1C);
3287 htcaps
->a_mpdu_params
|= (density
<< 2) & 0x1C;
3293 static int wpa_set_disable_ht40(struct wpa_supplicant
*wpa_s
,
3294 struct ieee80211_ht_capabilities
*htcaps
,
3295 struct ieee80211_ht_capabilities
*htcaps_mask
,
3298 /* Masking these out disables HT40 */
3299 le16 msk
= host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET
|
3300 HT_CAP_INFO_SHORT_GI40MHZ
);
3302 wpa_msg(wpa_s
, MSG_DEBUG
, "set_disable_ht40: %d", disabled
);
3305 htcaps
->ht_capabilities_info
&= ~msk
;
3307 htcaps
->ht_capabilities_info
|= msk
;
3309 htcaps_mask
->ht_capabilities_info
|= msk
;
3315 static int wpa_set_disable_sgi(struct wpa_supplicant
*wpa_s
,
3316 struct ieee80211_ht_capabilities
*htcaps
,
3317 struct ieee80211_ht_capabilities
*htcaps_mask
,
3320 /* Masking these out disables SGI */
3321 le16 msk
= host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ
|
3322 HT_CAP_INFO_SHORT_GI40MHZ
);
3324 wpa_msg(wpa_s
, MSG_DEBUG
, "set_disable_sgi: %d", disabled
);
3327 htcaps
->ht_capabilities_info
&= ~msk
;
3329 htcaps
->ht_capabilities_info
|= msk
;
3331 htcaps_mask
->ht_capabilities_info
|= msk
;
3337 static int wpa_set_disable_ldpc(struct wpa_supplicant
*wpa_s
,
3338 struct ieee80211_ht_capabilities
*htcaps
,
3339 struct ieee80211_ht_capabilities
*htcaps_mask
,
3342 /* Masking these out disables LDPC */
3343 le16 msk
= host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP
);
3345 wpa_msg(wpa_s
, MSG_DEBUG
, "set_disable_ldpc: %d", disabled
);
3348 htcaps
->ht_capabilities_info
&= ~msk
;
3350 htcaps
->ht_capabilities_info
|= msk
;
3352 htcaps_mask
->ht_capabilities_info
|= msk
;
3358 void wpa_supplicant_apply_ht_overrides(
3359 struct wpa_supplicant
*wpa_s
, struct wpa_ssid
*ssid
,
3360 struct wpa_driver_associate_params
*params
)
3362 struct ieee80211_ht_capabilities
*htcaps
;
3363 struct ieee80211_ht_capabilities
*htcaps_mask
;
3368 params
->disable_ht
= ssid
->disable_ht
;
3369 if (!params
->htcaps
|| !params
->htcaps_mask
)
3372 htcaps
= (struct ieee80211_ht_capabilities
*) params
->htcaps
;
3373 htcaps_mask
= (struct ieee80211_ht_capabilities
*) params
->htcaps_mask
;
3374 wpa_set_htcap_mcs(wpa_s
, htcaps
, htcaps_mask
, ssid
->ht_mcs
);
3375 wpa_disable_max_amsdu(wpa_s
, htcaps
, htcaps_mask
,
3376 ssid
->disable_max_amsdu
);
3377 wpa_set_ampdu_factor(wpa_s
, htcaps
, htcaps_mask
, ssid
->ampdu_factor
);
3378 wpa_set_ampdu_density(wpa_s
, htcaps
, htcaps_mask
, ssid
->ampdu_density
);
3379 wpa_set_disable_ht40(wpa_s
, htcaps
, htcaps_mask
, ssid
->disable_ht40
);
3380 wpa_set_disable_sgi(wpa_s
, htcaps
, htcaps_mask
, ssid
->disable_sgi
);
3381 wpa_set_disable_ldpc(wpa_s
, htcaps
, htcaps_mask
, ssid
->disable_ldpc
);
3383 if (ssid
->ht40_intolerant
) {
3384 le16 bit
= host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT
);
3385 htcaps
->ht_capabilities_info
|= bit
;
3386 htcaps_mask
->ht_capabilities_info
|= bit
;
3390 #endif /* CONFIG_HT_OVERRIDES */
3393 #ifdef CONFIG_VHT_OVERRIDES
3394 void wpa_supplicant_apply_vht_overrides(
3395 struct wpa_supplicant
*wpa_s
, struct wpa_ssid
*ssid
,
3396 struct wpa_driver_associate_params
*params
)
3398 struct ieee80211_vht_capabilities
*vhtcaps
;
3399 struct ieee80211_vht_capabilities
*vhtcaps_mask
;
3404 params
->disable_vht
= ssid
->disable_vht
;
3406 vhtcaps
= (void *) params
->vhtcaps
;
3407 vhtcaps_mask
= (void *) params
->vhtcaps_mask
;
3409 if (!vhtcaps
|| !vhtcaps_mask
)
3412 vhtcaps
->vht_capabilities_info
= ssid
->vht_capa
;
3413 vhtcaps_mask
->vht_capabilities_info
= ssid
->vht_capa_mask
;
3415 #ifdef CONFIG_HT_OVERRIDES
3416 /* if max ampdu is <= 3, we have to make the HT cap the same */
3417 if (ssid
->vht_capa_mask
& VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX
) {
3420 max_ampdu
= (ssid
->vht_capa
&
3421 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX
) >>
3422 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX_SHIFT
;
3424 max_ampdu
= max_ampdu
< 3 ? max_ampdu
: 3;
3425 wpa_set_ampdu_factor(wpa_s
,
3426 (void *) params
->htcaps
,
3427 (void *) params
->htcaps_mask
,
3430 #endif /* CONFIG_HT_OVERRIDES */
3432 #define OVERRIDE_MCS(i) \
3433 if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \
3434 vhtcaps_mask->vht_supported_mcs_set.tx_map |= \
3436 vhtcaps->vht_supported_mcs_set.tx_map |= \
3437 ssid->vht_tx_mcs_nss_ ##i << 2 * (i - 1); \
3439 if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \
3440 vhtcaps_mask->vht_supported_mcs_set.rx_map |= \
3442 vhtcaps->vht_supported_mcs_set.rx_map |= \
3443 ssid->vht_rx_mcs_nss_ ##i << 2 * (i - 1); \
3455 #endif /* CONFIG_VHT_OVERRIDES */
3458 static int pcsc_reader_init(struct wpa_supplicant
*wpa_s
)
3463 if (!wpa_s
->conf
->pcsc_reader
)
3466 wpa_s
->scard
= scard_init(wpa_s
->conf
->pcsc_reader
);
3470 if (wpa_s
->conf
->pcsc_pin
&&
3471 scard_set_pin(wpa_s
->scard
, wpa_s
->conf
->pcsc_pin
) < 0) {
3472 scard_deinit(wpa_s
->scard
);
3473 wpa_s
->scard
= NULL
;
3474 wpa_msg(wpa_s
, MSG_ERROR
, "PC/SC PIN validation failed");
3478 len
= sizeof(wpa_s
->imsi
) - 1;
3479 if (scard_get_imsi(wpa_s
->scard
, wpa_s
->imsi
, &len
)) {
3480 scard_deinit(wpa_s
->scard
);
3481 wpa_s
->scard
= NULL
;
3482 wpa_msg(wpa_s
, MSG_ERROR
, "Could not read IMSI");
3485 wpa_s
->imsi
[len
] = '\0';
3487 wpa_s
->mnc_len
= scard_get_mnc_len(wpa_s
->scard
);
3489 wpa_printf(MSG_DEBUG
, "SCARD: IMSI %s (MNC length %d)",
3490 wpa_s
->imsi
, wpa_s
->mnc_len
);
3492 wpa_sm_set_scard_ctx(wpa_s
->wpa
, wpa_s
->scard
);
3493 eapol_sm_register_scard_ctx(wpa_s
->eapol
, wpa_s
->scard
);
3494 #endif /* PCSC_FUNCS */
3500 int wpas_init_ext_pw(struct wpa_supplicant
*wpa_s
)
3504 ext_password_deinit(wpa_s
->ext_pw
);
3505 wpa_s
->ext_pw
= NULL
;
3506 eapol_sm_set_ext_pw_ctx(wpa_s
->eapol
, NULL
);
3508 if (!wpa_s
->conf
->ext_password_backend
)
3511 val
= os_strdup(wpa_s
->conf
->ext_password_backend
);
3514 pos
= os_strchr(val
, ':');
3518 wpa_printf(MSG_DEBUG
, "EXT PW: Initialize backend '%s'", val
);
3520 wpa_s
->ext_pw
= ext_password_init(val
, pos
);
3522 if (wpa_s
->ext_pw
== NULL
) {
3523 wpa_printf(MSG_DEBUG
, "EXT PW: Failed to initialize backend");
3526 eapol_sm_set_ext_pw_ctx(wpa_s
->eapol
, wpa_s
->ext_pw
);
3532 static int wpas_set_wowlan_triggers(struct wpa_supplicant
*wpa_s
,
3533 const struct wpa_driver_capa
*capa
)
3535 struct wowlan_triggers
*triggers
;
3538 if (!wpa_s
->conf
->wowlan_triggers
)
3541 triggers
= wpa_get_wowlan_triggers(wpa_s
->conf
->wowlan_triggers
, capa
);
3543 ret
= wpa_drv_wowlan(wpa_s
, triggers
);
3550 static struct wpa_radio
* radio_add_interface(struct wpa_supplicant
*wpa_s
,
3553 struct wpa_supplicant
*iface
= wpa_s
->global
->ifaces
;
3554 struct wpa_radio
*radio
;
3556 while (rn
&& iface
) {
3557 radio
= iface
->radio
;
3558 if (radio
&& os_strcmp(rn
, radio
->name
) == 0) {
3559 wpa_printf(MSG_DEBUG
, "Add interface %s to existing radio %s",
3561 dl_list_add(&radio
->ifaces
, &wpa_s
->radio_list
);
3565 iface
= iface
->next
;
3568 wpa_printf(MSG_DEBUG
, "Add interface %s to a new radio %s",
3569 wpa_s
->ifname
, rn
? rn
: "N/A");
3570 radio
= os_zalloc(sizeof(*radio
));
3575 os_strlcpy(radio
->name
, rn
, sizeof(radio
->name
));
3576 dl_list_init(&radio
->ifaces
);
3577 dl_list_init(&radio
->work
);
3578 dl_list_add(&radio
->ifaces
, &wpa_s
->radio_list
);
3584 static void radio_work_free(struct wpa_radio_work
*work
)
3586 if (work
->wpa_s
->scan_work
== work
) {
3587 /* This should not really happen. */
3588 wpa_dbg(work
->wpa_s
, MSG_INFO
, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work",
3589 work
->type
, work
, work
->started
);
3590 work
->wpa_s
->scan_work
= NULL
;
3594 if (work
->wpa_s
->p2p_scan_work
== work
) {
3595 /* This should not really happen. */
3596 wpa_dbg(work
->wpa_s
, MSG_INFO
, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work",
3597 work
->type
, work
, work
->started
);
3598 work
->wpa_s
->p2p_scan_work
= NULL
;
3600 #endif /* CONFIG_P2P */
3602 dl_list_del(&work
->list
);
3607 static void radio_start_next_work(void *eloop_ctx
, void *timeout_ctx
)
3609 struct wpa_radio
*radio
= eloop_ctx
;
3610 struct wpa_radio_work
*work
;
3611 struct os_reltime now
, diff
;
3612 struct wpa_supplicant
*wpa_s
;
3614 work
= dl_list_first(&radio
->work
, struct wpa_radio_work
, list
);
3619 return; /* already started and still in progress */
3621 wpa_s
= dl_list_first(&radio
->ifaces
, struct wpa_supplicant
,
3623 if (wpa_s
&& wpa_s
->radio
->external_scan_running
) {
3624 wpa_printf(MSG_DEBUG
, "Delay radio work start until externally triggered scan completes");
3628 os_get_reltime(&now
);
3629 os_reltime_sub(&now
, &work
->time
, &diff
);
3630 wpa_dbg(work
->wpa_s
, MSG_DEBUG
, "Starting radio work '%s'@%p after %ld.%06ld second wait",
3631 work
->type
, work
, diff
.sec
, diff
.usec
);
3639 * This function removes both started and pending radio works running on
3640 * the provided interface's radio.
3641 * Prior to the removal of the radio work, its callback (cb) is called with
3642 * deinit set to be 1. Each work's callback is responsible for clearing its
3643 * internal data and restoring to a correct state.
3644 * @wpa_s: wpa_supplicant data
3645 * @type: type of works to be removed
3646 * @remove_all: 1 to remove all the works on this radio, 0 to remove only
3647 * this interface's works.
3649 void radio_remove_works(struct wpa_supplicant
*wpa_s
,
3650 const char *type
, int remove_all
)
3652 struct wpa_radio_work
*work
, *tmp
;
3653 struct wpa_radio
*radio
= wpa_s
->radio
;
3655 dl_list_for_each_safe(work
, tmp
, &radio
->work
, struct wpa_radio_work
,
3657 if (type
&& os_strcmp(type
, work
->type
) != 0)
3660 /* skip other ifaces' works */
3661 if (!remove_all
&& work
->wpa_s
!= wpa_s
)
3664 wpa_dbg(wpa_s
, MSG_DEBUG
, "Remove radio work '%s'@%p%s",
3665 work
->type
, work
, work
->started
? " (started)" : "");
3667 radio_work_free(work
);
3670 /* in case we removed the started work */
3671 radio_work_check_next(wpa_s
);
3675 static void radio_remove_interface(struct wpa_supplicant
*wpa_s
)
3677 struct wpa_radio
*radio
= wpa_s
->radio
;
3682 wpa_printf(MSG_DEBUG
, "Remove interface %s from radio %s",
3683 wpa_s
->ifname
, radio
->name
);
3684 dl_list_del(&wpa_s
->radio_list
);
3685 radio_remove_works(wpa_s
, NULL
, 0);
3686 wpa_s
->radio
= NULL
;
3687 if (!dl_list_empty(&radio
->ifaces
))
3688 return; /* Interfaces remain for this radio */
3690 wpa_printf(MSG_DEBUG
, "Remove radio %s", radio
->name
);
3691 eloop_cancel_timeout(radio_start_next_work
, radio
, NULL
);
3696 void radio_work_check_next(struct wpa_supplicant
*wpa_s
)
3698 struct wpa_radio
*radio
= wpa_s
->radio
;
3700 if (dl_list_empty(&radio
->work
))
3702 if (wpa_s
->ext_work_in_progress
) {
3703 wpa_printf(MSG_DEBUG
,
3704 "External radio work in progress - delay start of pending item");
3707 eloop_cancel_timeout(radio_start_next_work
, radio
, NULL
);
3708 eloop_register_timeout(0, 0, radio_start_next_work
, radio
, NULL
);
3713 * radio_add_work - Add a radio work item
3714 * @wpa_s: Pointer to wpa_supplicant data
3715 * @freq: Frequency of the offchannel operation in MHz or 0
3716 * @type: Unique identifier for each type of work
3717 * @next: Force as the next work to be executed
3718 * @cb: Callback function for indicating when radio is available
3719 * @ctx: Context pointer for the work (work->ctx in cb())
3720 * Returns: 0 on success, -1 on failure
3722 * This function is used to request time for an operation that requires
3723 * exclusive radio control. Once the radio is available, the registered callback
3724 * function will be called. radio_work_done() must be called once the exclusive
3725 * radio operation has been completed, so that the radio is freed for other
3726 * operations. The special case of deinit=1 is used to free the context data
3727 * during interface removal. That does not allow the callback function to start
3728 * the radio operation, i.e., it must free any resources allocated for the radio
3731 * The @freq parameter can be used to indicate a single channel on which the
3732 * offchannel operation will occur. This may allow multiple radio work
3733 * operations to be performed in parallel if they apply for the same channel.
3734 * Setting this to 0 indicates that the work item may use multiple channels or
3735 * requires exclusive control of the radio.
3737 int radio_add_work(struct wpa_supplicant
*wpa_s
, unsigned int freq
,
3738 const char *type
, int next
,
3739 void (*cb
)(struct wpa_radio_work
*work
, int deinit
),
3742 struct wpa_radio_work
*work
;
3745 work
= os_zalloc(sizeof(*work
));
3748 wpa_dbg(wpa_s
, MSG_DEBUG
, "Add radio work '%s'@%p", type
, work
);
3749 os_get_reltime(&work
->time
);
3752 work
->wpa_s
= wpa_s
;
3756 was_empty
= dl_list_empty(&wpa_s
->radio
->work
);
3758 dl_list_add(&wpa_s
->radio
->work
, &work
->list
);
3760 dl_list_add_tail(&wpa_s
->radio
->work
, &work
->list
);
3762 wpa_dbg(wpa_s
, MSG_DEBUG
, "First radio work item in the queue - schedule start immediately");
3763 radio_work_check_next(wpa_s
);
3771 * radio_work_done - Indicate that a radio work item has been completed
3772 * @work: Completed work
3774 * This function is called once the callback function registered with
3775 * radio_add_work() has completed its work.
3777 void radio_work_done(struct wpa_radio_work
*work
)
3779 struct wpa_supplicant
*wpa_s
= work
->wpa_s
;
3780 struct os_reltime now
, diff
;
3781 unsigned int started
= work
->started
;
3783 os_get_reltime(&now
);
3784 os_reltime_sub(&now
, &work
->time
, &diff
);
3785 wpa_dbg(wpa_s
, MSG_DEBUG
, "Radio work '%s'@%p %s in %ld.%06ld seconds",
3786 work
->type
, work
, started
? "done" : "canceled",
3787 diff
.sec
, diff
.usec
);
3788 radio_work_free(work
);
3790 radio_work_check_next(wpa_s
);
3794 struct wpa_radio_work
*
3795 radio_work_pending(struct wpa_supplicant
*wpa_s
, const char *type
)
3797 struct wpa_radio_work
*work
;
3798 struct wpa_radio
*radio
= wpa_s
->radio
;
3800 dl_list_for_each(work
, &radio
->work
, struct wpa_radio_work
, list
) {
3801 if (work
->wpa_s
== wpa_s
&& os_strcmp(work
->type
, type
) == 0)
3809 static int wpas_init_driver(struct wpa_supplicant
*wpa_s
,
3810 struct wpa_interface
*iface
)
3812 const char *ifname
, *driver
, *rn
;
3814 driver
= iface
->driver
;
3816 if (wpa_supplicant_set_driver(wpa_s
, driver
) < 0)
3819 wpa_s
->drv_priv
= wpa_drv_init(wpa_s
, wpa_s
->ifname
);
3820 if (wpa_s
->drv_priv
== NULL
) {
3822 pos
= driver
? os_strchr(driver
, ',') : NULL
;
3824 wpa_dbg(wpa_s
, MSG_DEBUG
, "Failed to initialize "
3825 "driver interface - try next driver wrapper");
3829 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to initialize driver "
3833 if (wpa_drv_set_param(wpa_s
, wpa_s
->conf
->driver_param
) < 0) {
3834 wpa_msg(wpa_s
, MSG_ERROR
, "Driver interface rejected "
3835 "driver_param '%s'", wpa_s
->conf
->driver_param
);
3839 ifname
= wpa_drv_get_ifname(wpa_s
);
3840 if (ifname
&& os_strcmp(ifname
, wpa_s
->ifname
) != 0) {
3841 wpa_dbg(wpa_s
, MSG_DEBUG
, "Driver interface replaced "
3842 "interface name with '%s'", ifname
);
3843 os_strlcpy(wpa_s
->ifname
, ifname
, sizeof(wpa_s
->ifname
));
3846 rn
= wpa_driver_get_radio_name(wpa_s
);
3847 if (rn
&& rn
[0] == '\0')
3850 wpa_s
->radio
= radio_add_interface(wpa_s
, rn
);
3851 if (wpa_s
->radio
== NULL
)
3858 static int wpa_supplicant_init_iface(struct wpa_supplicant
*wpa_s
,
3859 struct wpa_interface
*iface
)
3861 struct wpa_driver_capa capa
;
3864 wpa_printf(MSG_DEBUG
, "Initializing interface '%s' conf '%s' driver "
3865 "'%s' ctrl_interface '%s' bridge '%s'", iface
->ifname
,
3866 iface
->confname
? iface
->confname
: "N/A",
3867 iface
->driver
? iface
->driver
: "default",
3868 iface
->ctrl_interface
? iface
->ctrl_interface
: "N/A",
3869 iface
->bridge_ifname
? iface
->bridge_ifname
: "N/A");
3871 if (iface
->confname
) {
3872 #ifdef CONFIG_BACKEND_FILE
3873 wpa_s
->confname
= os_rel2abs_path(iface
->confname
);
3874 if (wpa_s
->confname
== NULL
) {
3875 wpa_printf(MSG_ERROR
, "Failed to get absolute path "
3876 "for configuration file '%s'.",
3880 wpa_printf(MSG_DEBUG
, "Configuration file '%s' -> '%s'",
3881 iface
->confname
, wpa_s
->confname
);
3882 #else /* CONFIG_BACKEND_FILE */
3883 wpa_s
->confname
= os_strdup(iface
->confname
);
3884 #endif /* CONFIG_BACKEND_FILE */
3885 wpa_s
->conf
= wpa_config_read(wpa_s
->confname
, NULL
);
3886 if (wpa_s
->conf
== NULL
) {
3887 wpa_printf(MSG_ERROR
, "Failed to read or parse "
3888 "configuration '%s'.", wpa_s
->confname
);
3891 wpa_s
->confanother
= os_rel2abs_path(iface
->confanother
);
3892 wpa_config_read(wpa_s
->confanother
, wpa_s
->conf
);
3895 * Override ctrl_interface and driver_param if set on command
3898 if (iface
->ctrl_interface
) {
3899 os_free(wpa_s
->conf
->ctrl_interface
);
3900 wpa_s
->conf
->ctrl_interface
=
3901 os_strdup(iface
->ctrl_interface
);
3904 if (iface
->driver_param
) {
3905 os_free(wpa_s
->conf
->driver_param
);
3906 wpa_s
->conf
->driver_param
=
3907 os_strdup(iface
->driver_param
);
3910 if (iface
->p2p_mgmt
&& !iface
->ctrl_interface
) {
3911 os_free(wpa_s
->conf
->ctrl_interface
);
3912 wpa_s
->conf
->ctrl_interface
= NULL
;
3915 wpa_s
->conf
= wpa_config_alloc_empty(iface
->ctrl_interface
,
3916 iface
->driver_param
);
3918 if (wpa_s
->conf
== NULL
) {
3919 wpa_printf(MSG_ERROR
, "\nNo configuration found.");
3923 if (iface
->ifname
== NULL
) {
3924 wpa_printf(MSG_ERROR
, "\nInterface name is required.");
3927 if (os_strlen(iface
->ifname
) >= sizeof(wpa_s
->ifname
)) {
3928 wpa_printf(MSG_ERROR
, "\nToo long interface name '%s'.",
3932 os_strlcpy(wpa_s
->ifname
, iface
->ifname
, sizeof(wpa_s
->ifname
));
3934 if (iface
->bridge_ifname
) {
3935 if (os_strlen(iface
->bridge_ifname
) >=
3936 sizeof(wpa_s
->bridge_ifname
)) {
3937 wpa_printf(MSG_ERROR
, "\nToo long bridge interface "
3938 "name '%s'.", iface
->bridge_ifname
);
3941 os_strlcpy(wpa_s
->bridge_ifname
, iface
->bridge_ifname
,
3942 sizeof(wpa_s
->bridge_ifname
));
3945 /* RSNA Supplicant Key Management - INITIALIZE */
3946 eapol_sm_notify_portEnabled(wpa_s
->eapol
, FALSE
);
3947 eapol_sm_notify_portValid(wpa_s
->eapol
, FALSE
);
3949 /* Initialize driver interface and register driver event handler before
3950 * L2 receive handler so that association events are processed before
3951 * EAPOL-Key packets if both become available for the same select()
3953 if (wpas_init_driver(wpa_s
, iface
) < 0)
3956 if (wpa_supplicant_init_wpa(wpa_s
) < 0)
3959 wpa_sm_set_ifname(wpa_s
->wpa
, wpa_s
->ifname
,
3960 wpa_s
->bridge_ifname
[0] ? wpa_s
->bridge_ifname
:
3962 wpa_sm_set_fast_reauth(wpa_s
->wpa
, wpa_s
->conf
->fast_reauth
);
3964 if (wpa_s
->conf
->dot11RSNAConfigPMKLifetime
&&
3965 wpa_sm_set_param(wpa_s
->wpa
, RSNA_PMK_LIFETIME
,
3966 wpa_s
->conf
->dot11RSNAConfigPMKLifetime
)) {
3967 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid WPA parameter value for "
3968 "dot11RSNAConfigPMKLifetime");
3972 if (wpa_s
->conf
->dot11RSNAConfigPMKReauthThreshold
&&
3973 wpa_sm_set_param(wpa_s
->wpa
, RSNA_PMK_REAUTH_THRESHOLD
,
3974 wpa_s
->conf
->dot11RSNAConfigPMKReauthThreshold
)) {
3975 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid WPA parameter value for "
3976 "dot11RSNAConfigPMKReauthThreshold");
3980 if (wpa_s
->conf
->dot11RSNAConfigSATimeout
&&
3981 wpa_sm_set_param(wpa_s
->wpa
, RSNA_SA_TIMEOUT
,
3982 wpa_s
->conf
->dot11RSNAConfigSATimeout
)) {
3983 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid WPA parameter value for "
3984 "dot11RSNAConfigSATimeout");
3988 wpa_s
->hw
.modes
= wpa_drv_get_hw_feature_data(wpa_s
,
3989 &wpa_s
->hw
.num_modes
,
3992 capa_res
= wpa_drv_get_capa(wpa_s
, &capa
);
3993 if (capa_res
== 0) {
3994 wpa_s
->drv_capa_known
= 1;
3995 wpa_s
->drv_flags
= capa
.flags
;
3996 wpa_s
->drv_enc
= capa
.enc
;
3997 wpa_s
->drv_smps_modes
= capa
.smps_modes
;
3998 wpa_s
->drv_rrm_flags
= capa
.rrm_flags
;
3999 wpa_s
->probe_resp_offloads
= capa
.probe_resp_offloads
;
4000 wpa_s
->max_scan_ssids
= capa
.max_scan_ssids
;
4001 wpa_s
->max_sched_scan_ssids
= capa
.max_sched_scan_ssids
;
4002 wpa_s
->sched_scan_supported
= capa
.sched_scan_supported
;
4003 wpa_s
->max_match_sets
= capa
.max_match_sets
;
4004 wpa_s
->max_remain_on_chan
= capa
.max_remain_on_chan
;
4005 wpa_s
->max_stations
= capa
.max_stations
;
4006 wpa_s
->extended_capa
= capa
.extended_capa
;
4007 wpa_s
->extended_capa_mask
= capa
.extended_capa_mask
;
4008 wpa_s
->extended_capa_len
= capa
.extended_capa_len
;
4009 wpa_s
->num_multichan_concurrent
=
4010 capa
.num_multichan_concurrent
;
4011 wpa_s
->wmm_ac_supported
= capa
.wmm_ac_supported
;
4013 if (capa
.mac_addr_rand_scan_supported
)
4014 wpa_s
->mac_addr_rand_supported
|= MAC_ADDR_RAND_SCAN
;
4015 if (wpa_s
->sched_scan_supported
&&
4016 capa
.mac_addr_rand_sched_scan_supported
)
4017 wpa_s
->mac_addr_rand_supported
|=
4018 (MAC_ADDR_RAND_SCHED_SCAN
| MAC_ADDR_RAND_PNO
);
4020 if (wpa_s
->max_remain_on_chan
== 0)
4021 wpa_s
->max_remain_on_chan
= 1000;
4024 * Only take p2p_mgmt parameters when P2P Device is supported.
4025 * Doing it here as it determines whether l2_packet_init() will be done
4026 * during wpa_supplicant_driver_init().
4028 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
)
4029 wpa_s
->p2p_mgmt
= iface
->p2p_mgmt
;
4031 iface
->p2p_mgmt
= 1;
4033 if (wpa_s
->num_multichan_concurrent
== 0)
4034 wpa_s
->num_multichan_concurrent
= 1;
4036 if (wpa_supplicant_driver_init(wpa_s
) < 0)
4040 if ((!iface
->p2p_mgmt
||
4041 !(wpa_s
->drv_flags
&
4042 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
)) &&
4043 wpa_tdls_init(wpa_s
->wpa
))
4045 #endif /* CONFIG_TDLS */
4047 if (wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1] &&
4048 wpa_drv_set_country(wpa_s
, wpa_s
->conf
->country
)) {
4049 wpa_dbg(wpa_s
, MSG_DEBUG
, "Failed to set country");
4053 if (wpas_wps_init(wpa_s
))
4056 if (wpa_supplicant_init_eapol(wpa_s
) < 0)
4058 wpa_sm_set_eapol(wpa_s
->wpa
, wpa_s
->eapol
);
4060 wpa_s
->ctrl_iface
= wpa_supplicant_ctrl_iface_init(wpa_s
);
4061 if (wpa_s
->ctrl_iface
== NULL
) {
4062 wpa_printf(MSG_ERROR
,
4063 "Failed to initialize control interface '%s'.\n"
4064 "You may have another wpa_supplicant process "
4065 "already running or the file was\n"
4066 "left by an unclean termination of wpa_supplicant "
4067 "in which case you will need\n"
4068 "to manually remove this file before starting "
4069 "wpa_supplicant again.\n",
4070 wpa_s
->conf
->ctrl_interface
);
4074 wpa_s
->gas
= gas_query_init(wpa_s
);
4075 if (wpa_s
->gas
== NULL
) {
4076 wpa_printf(MSG_ERROR
, "Failed to initialize GAS query");
4080 if (iface
->p2p_mgmt
&& wpas_p2p_init(wpa_s
->global
, wpa_s
) < 0) {
4081 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to init P2P");
4085 if (wpa_bss_init(wpa_s
) < 0)
4089 * Set Wake-on-WLAN triggers, if configured.
4090 * Note: We don't restore/remove the triggers on shutdown (it doesn't
4091 * have effect anyway when the interface is down).
4093 if (capa_res
== 0 && wpas_set_wowlan_triggers(wpa_s
, &capa
) < 0)
4096 #ifdef CONFIG_EAP_PROXY
4099 wpa_s
->mnc_len
= eapol_sm_get_eap_proxy_imsi(wpa_s
->eapol
, wpa_s
->imsi
,
4101 if (wpa_s
->mnc_len
> 0) {
4102 wpa_s
->imsi
[len
] = '\0';
4103 wpa_printf(MSG_DEBUG
, "eap_proxy: IMSI %s (MNC length %d)",
4104 wpa_s
->imsi
, wpa_s
->mnc_len
);
4106 wpa_printf(MSG_DEBUG
, "eap_proxy: IMSI not available");
4109 #endif /* CONFIG_EAP_PROXY */
4111 if (pcsc_reader_init(wpa_s
) < 0)
4114 if (wpas_init_ext_pw(wpa_s
) < 0)
4117 wpas_rrm_reset(wpa_s
);
4123 static void wpa_supplicant_deinit_iface(struct wpa_supplicant
*wpa_s
,
4124 int notify
, int terminate
)
4126 struct wpa_global
*global
= wpa_s
->global
;
4127 struct wpa_supplicant
*iface
, *prev
;
4129 if (wpa_s
== wpa_s
->parent
)
4130 wpas_p2p_group_remove(wpa_s
, "*");
4132 iface
= global
->ifaces
;
4134 if (iface
== wpa_s
|| iface
->parent
!= wpa_s
) {
4135 iface
= iface
->next
;
4138 wpa_printf(MSG_DEBUG
,
4139 "Remove remaining child interface %s from parent %s",
4140 iface
->ifname
, wpa_s
->ifname
);
4142 iface
= iface
->next
;
4143 wpa_supplicant_remove_iface(global
, prev
, terminate
);
4146 wpa_s
->disconnected
= 1;
4147 if (wpa_s
->drv_priv
) {
4148 wpa_supplicant_deauthenticate(wpa_s
,
4149 WLAN_REASON_DEAUTH_LEAVING
);
4151 wpa_drv_set_countermeasures(wpa_s
, 0);
4152 wpa_clear_keys(wpa_s
, NULL
);
4155 wpa_supplicant_cleanup(wpa_s
);
4156 wpas_p2p_deinit_iface(wpa_s
);
4158 wpas_ctrl_radio_work_flush(wpa_s
);
4159 radio_remove_interface(wpa_s
);
4161 if (wpa_s
->drv_priv
)
4162 wpa_drv_deinit(wpa_s
);
4165 wpas_notify_iface_removed(wpa_s
);
4168 wpa_msg(wpa_s
, MSG_INFO
, WPA_EVENT_TERMINATING
);
4170 if (wpa_s
->ctrl_iface
) {
4171 wpa_supplicant_ctrl_iface_deinit(wpa_s
->ctrl_iface
);
4172 wpa_s
->ctrl_iface
= NULL
;
4177 wpa_supplicant_mesh_iface_deinit(wpa_s
, wpa_s
->ifmsh
);
4178 wpa_s
->ifmsh
= NULL
;
4180 #endif /* CONFIG_MESH */
4182 if (wpa_s
->conf
!= NULL
) {
4183 wpa_config_free(wpa_s
->conf
);
4192 * wpa_supplicant_add_iface - Add a new network interface
4193 * @global: Pointer to global data from wpa_supplicant_init()
4194 * @iface: Interface configuration options
4195 * Returns: Pointer to the created interface or %NULL on failure
4197 * This function is used to add new network interfaces for %wpa_supplicant.
4198 * This can be called before wpa_supplicant_run() to add interfaces before the
4199 * main event loop has been started. In addition, new interfaces can be added
4200 * dynamically while %wpa_supplicant is already running. This could happen,
4201 * e.g., when a hotplug network adapter is inserted.
4203 struct wpa_supplicant
* wpa_supplicant_add_iface(struct wpa_global
*global
,
4204 struct wpa_interface
*iface
)
4206 struct wpa_supplicant
*wpa_s
;
4207 struct wpa_interface t_iface
;
4208 struct wpa_ssid
*ssid
;
4210 if (global
== NULL
|| iface
== NULL
)
4213 wpa_s
= wpa_supplicant_alloc();
4217 wpa_s
->global
= global
;
4220 if (global
->params
.override_driver
) {
4221 wpa_printf(MSG_DEBUG
, "Override interface parameter: driver "
4223 iface
->driver
, global
->params
.override_driver
);
4224 t_iface
.driver
= global
->params
.override_driver
;
4226 if (global
->params
.override_ctrl_interface
) {
4227 wpa_printf(MSG_DEBUG
, "Override interface parameter: "
4228 "ctrl_interface ('%s' -> '%s')",
4229 iface
->ctrl_interface
,
4230 global
->params
.override_ctrl_interface
);
4231 t_iface
.ctrl_interface
=
4232 global
->params
.override_ctrl_interface
;
4234 if (wpa_supplicant_init_iface(wpa_s
, &t_iface
)) {
4235 wpa_printf(MSG_DEBUG
, "Failed to add interface %s",
4237 wpa_supplicant_deinit_iface(wpa_s
, 0, 0);
4241 if (iface
->p2p_mgmt
== 0) {
4242 /* Notify the control interfaces about new iface */
4243 if (wpas_notify_iface_added(wpa_s
)) {
4244 wpa_supplicant_deinit_iface(wpa_s
, 1, 0);
4248 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
)
4249 wpas_notify_network_added(wpa_s
, ssid
);
4252 wpa_s
->next
= global
->ifaces
;
4253 global
->ifaces
= wpa_s
;
4255 wpa_dbg(wpa_s
, MSG_DEBUG
, "Added interface %s", wpa_s
->ifname
);
4256 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
4259 if (wpa_s
->global
->p2p
== NULL
&&
4260 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE
) &&
4261 wpas_p2p_add_p2pdev_interface(wpa_s
, iface
->conf_p2p_dev
) < 0) {
4262 wpa_printf(MSG_INFO
,
4263 "P2P: Failed to enable P2P Device interface");
4264 /* Try to continue without. P2P will be disabled. */
4266 #endif /* CONFIG_P2P */
4273 * wpa_supplicant_remove_iface - Remove a network interface
4274 * @global: Pointer to global data from wpa_supplicant_init()
4275 * @wpa_s: Pointer to the network interface to be removed
4276 * Returns: 0 if interface was removed, -1 if interface was not found
4278 * This function can be used to dynamically remove network interfaces from
4279 * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In
4280 * addition, this function is used to remove all remaining interfaces when
4281 * %wpa_supplicant is terminated.
4283 int wpa_supplicant_remove_iface(struct wpa_global
*global
,
4284 struct wpa_supplicant
*wpa_s
,
4287 struct wpa_supplicant
*prev
;
4289 unsigned int mesh_if_created
= wpa_s
->mesh_if_created
;
4290 char *ifname
= NULL
;
4291 #endif /* CONFIG_MESH */
4293 /* Remove interface from the global list of interfaces */
4294 prev
= global
->ifaces
;
4295 if (prev
== wpa_s
) {
4296 global
->ifaces
= wpa_s
->next
;
4298 while (prev
&& prev
->next
!= wpa_s
)
4302 prev
->next
= wpa_s
->next
;
4305 wpa_dbg(wpa_s
, MSG_DEBUG
, "Removing interface %s", wpa_s
->ifname
);
4308 if (mesh_if_created
) {
4309 ifname
= os_strdup(wpa_s
->ifname
);
4310 if (ifname
== NULL
) {
4311 wpa_dbg(wpa_s
, MSG_ERROR
,
4312 "mesh: Failed to malloc ifname");
4316 #endif /* CONFIG_MESH */
4318 if (global
->p2p_group_formation
== wpa_s
)
4319 global
->p2p_group_formation
= NULL
;
4320 if (global
->p2p_invite_group
== wpa_s
)
4321 global
->p2p_invite_group
= NULL
;
4322 wpa_supplicant_deinit_iface(wpa_s
, 1, terminate
);
4325 if (mesh_if_created
) {
4326 wpa_drv_if_remove(global
->ifaces
, WPA_IF_MESH
, ifname
);
4329 #endif /* CONFIG_MESH */
4336 * wpa_supplicant_get_eap_mode - Get the current EAP mode
4337 * @wpa_s: Pointer to the network interface
4338 * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found
4340 const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant
*wpa_s
)
4342 const char *eapol_method
;
4344 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s
->key_mgmt
) == 0 &&
4345 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
4349 eapol_method
= eapol_sm_get_method_name(wpa_s
->eapol
);
4350 if (eapol_method
== NULL
)
4351 return "UNKNOWN-EAP";
4353 return eapol_method
;
4358 * wpa_supplicant_get_iface - Get a new network interface
4359 * @global: Pointer to global data from wpa_supplicant_init()
4360 * @ifname: Interface name
4361 * Returns: Pointer to the interface or %NULL if not found
4363 struct wpa_supplicant
* wpa_supplicant_get_iface(struct wpa_global
*global
,
4366 struct wpa_supplicant
*wpa_s
;
4368 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
4369 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
4376 #ifndef CONFIG_NO_WPA_MSG
4377 static const char * wpa_supplicant_msg_ifname_cb(void *ctx
)
4379 struct wpa_supplicant
*wpa_s
= ctx
;
4382 return wpa_s
->ifname
;
4384 #endif /* CONFIG_NO_WPA_MSG */
4388 * wpa_supplicant_init - Initialize %wpa_supplicant
4389 * @params: Parameters for %wpa_supplicant
4390 * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure
4392 * This function is used to initialize %wpa_supplicant. After successful
4393 * initialization, the returned data pointer can be used to add and remove
4394 * network interfaces, and eventually, to deinitialize %wpa_supplicant.
4396 struct wpa_global
* wpa_supplicant_init(struct wpa_params
*params
)
4398 struct wpa_global
*global
;
4404 #ifdef CONFIG_DRIVER_NDIS
4406 void driver_ndis_init_ops(void);
4407 driver_ndis_init_ops();
4409 #endif /* CONFIG_DRIVER_NDIS */
4411 #ifndef CONFIG_NO_WPA_MSG
4412 wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb
);
4413 #endif /* CONFIG_NO_WPA_MSG */
4415 if (params
->wpa_debug_file_path
)
4416 wpa_debug_open_file(params
->wpa_debug_file_path
);
4418 wpa_debug_setup_stdout();
4419 if (params
->wpa_debug_syslog
)
4420 wpa_debug_open_syslog();
4421 if (params
->wpa_debug_tracing
) {
4422 ret
= wpa_debug_open_linux_tracing();
4424 wpa_printf(MSG_ERROR
,
4425 "Failed to enable trace logging");
4430 ret
= eap_register_methods();
4432 wpa_printf(MSG_ERROR
, "Failed to register EAP methods");
4434 wpa_printf(MSG_ERROR
, "Two or more EAP methods used "
4435 "the same EAP type.");
4439 global
= os_zalloc(sizeof(*global
));
4442 dl_list_init(&global
->p2p_srv_bonjour
);
4443 dl_list_init(&global
->p2p_srv_upnp
);
4444 global
->params
.daemonize
= params
->daemonize
;
4445 global
->params
.wait_for_monitor
= params
->wait_for_monitor
;
4446 global
->params
.dbus_ctrl_interface
= params
->dbus_ctrl_interface
;
4447 if (params
->pid_file
)
4448 global
->params
.pid_file
= os_strdup(params
->pid_file
);
4449 if (params
->ctrl_interface
)
4450 global
->params
.ctrl_interface
=
4451 os_strdup(params
->ctrl_interface
);
4452 if (params
->ctrl_interface_group
)
4453 global
->params
.ctrl_interface_group
=
4454 os_strdup(params
->ctrl_interface_group
);
4455 if (params
->override_driver
)
4456 global
->params
.override_driver
=
4457 os_strdup(params
->override_driver
);
4458 if (params
->override_ctrl_interface
)
4459 global
->params
.override_ctrl_interface
=
4460 os_strdup(params
->override_ctrl_interface
);
4461 wpa_debug_level
= global
->params
.wpa_debug_level
=
4462 params
->wpa_debug_level
;
4463 wpa_debug_show_keys
= global
->params
.wpa_debug_show_keys
=
4464 params
->wpa_debug_show_keys
;
4465 wpa_debug_timestamp
= global
->params
.wpa_debug_timestamp
=
4466 params
->wpa_debug_timestamp
;
4468 wpa_printf(MSG_DEBUG
, "wpa_supplicant v" VERSION_STR
);
4471 wpa_printf(MSG_ERROR
, "Failed to initialize event loop");
4472 wpa_supplicant_deinit(global
);
4476 random_init(params
->entropy_file
);
4478 global
->ctrl_iface
= wpa_supplicant_global_ctrl_iface_init(global
);
4479 if (global
->ctrl_iface
== NULL
) {
4480 wpa_supplicant_deinit(global
);
4484 if (wpas_notify_supplicant_initialized(global
)) {
4485 wpa_supplicant_deinit(global
);
4489 for (i
= 0; wpa_drivers
[i
]; i
++)
4490 global
->drv_count
++;
4491 if (global
->drv_count
== 0) {
4492 wpa_printf(MSG_ERROR
, "No drivers enabled");
4493 wpa_supplicant_deinit(global
);
4496 global
->drv_priv
= os_calloc(global
->drv_count
, sizeof(void *));
4497 if (global
->drv_priv
== NULL
) {
4498 wpa_supplicant_deinit(global
);
4502 #ifdef CONFIG_WIFI_DISPLAY
4503 if (wifi_display_init(global
) < 0) {
4504 wpa_printf(MSG_ERROR
, "Failed to initialize Wi-Fi Display");
4505 wpa_supplicant_deinit(global
);
4508 #endif /* CONFIG_WIFI_DISPLAY */
4515 * wpa_supplicant_run - Run the %wpa_supplicant main event loop
4516 * @global: Pointer to global data from wpa_supplicant_init()
4517 * Returns: 0 after successful event loop run, -1 on failure
4519 * This function starts the main event loop and continues running as long as
4520 * there are any remaining events. In most cases, this function is running as
4521 * long as the %wpa_supplicant process in still in use.
4523 int wpa_supplicant_run(struct wpa_global
*global
)
4525 struct wpa_supplicant
*wpa_s
;
4527 if (global
->params
.daemonize
&&
4528 wpa_supplicant_daemon(global
->params
.pid_file
))
4531 if (global
->params
.wait_for_monitor
) {
4532 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
)
4533 if (wpa_s
->ctrl_iface
)
4534 wpa_supplicant_ctrl_iface_wait(
4538 eloop_register_signal_terminate(wpa_supplicant_terminate
, global
);
4539 eloop_register_signal_reconfig(wpa_supplicant_reconfig
, global
);
4548 * wpa_supplicant_deinit - Deinitialize %wpa_supplicant
4549 * @global: Pointer to global data from wpa_supplicant_init()
4551 * This function is called to deinitialize %wpa_supplicant and to free all
4552 * allocated resources. Remaining network interfaces will also be removed.
4554 void wpa_supplicant_deinit(struct wpa_global
*global
)
4561 #ifdef CONFIG_WIFI_DISPLAY
4562 wifi_display_deinit(global
);
4563 #endif /* CONFIG_WIFI_DISPLAY */
4565 while (global
->ifaces
)
4566 wpa_supplicant_remove_iface(global
, global
->ifaces
, 1);
4568 if (global
->ctrl_iface
)
4569 wpa_supplicant_global_ctrl_iface_deinit(global
->ctrl_iface
);
4571 wpas_notify_supplicant_deinitialized(global
);
4573 eap_peer_unregister_methods();
4575 eap_server_unregister_methods();
4576 #endif /* CONFIG_AP */
4578 for (i
= 0; wpa_drivers
[i
] && global
->drv_priv
; i
++) {
4579 if (!global
->drv_priv
[i
])
4581 wpa_drivers
[i
]->global_deinit(global
->drv_priv
[i
]);
4583 os_free(global
->drv_priv
);
4589 if (global
->params
.pid_file
) {
4590 os_daemonize_terminate(global
->params
.pid_file
);
4591 os_free(global
->params
.pid_file
);
4593 os_free(global
->params
.ctrl_interface
);
4594 os_free(global
->params
.ctrl_interface_group
);
4595 os_free(global
->params
.override_driver
);
4596 os_free(global
->params
.override_ctrl_interface
);
4598 os_free(global
->p2p_disallow_freq
.range
);
4599 os_free(global
->p2p_go_avoid_freq
.range
);
4600 os_free(global
->add_psk
);
4603 wpa_debug_close_syslog();
4604 wpa_debug_close_file();
4605 wpa_debug_close_linux_tracing();
4609 void wpa_supplicant_update_config(struct wpa_supplicant
*wpa_s
)
4611 if ((wpa_s
->conf
->changed_parameters
& CFG_CHANGED_COUNTRY
) &&
4612 wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
4614 country
[0] = wpa_s
->conf
->country
[0];
4615 country
[1] = wpa_s
->conf
->country
[1];
4617 if (wpa_drv_set_country(wpa_s
, country
) < 0) {
4618 wpa_printf(MSG_ERROR
, "Failed to set country code "
4623 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_EXT_PW_BACKEND
)
4624 wpas_init_ext_pw(wpa_s
);
4627 wpas_wps_update_config(wpa_s
);
4628 #endif /* CONFIG_WPS */
4629 wpas_p2p_update_config(wpa_s
);
4630 wpa_s
->conf
->changed_parameters
= 0;
4634 void add_freq(int *freqs
, int *num_freqs
, int freq
)
4638 for (i
= 0; i
< *num_freqs
; i
++) {
4639 if (freqs
[i
] == freq
)
4643 freqs
[*num_freqs
] = freq
;
4648 static int * get_bss_freqs_in_ess(struct wpa_supplicant
*wpa_s
)
4650 struct wpa_bss
*bss
, *cbss
;
4651 const int max_freqs
= 10;
4655 freqs
= os_calloc(max_freqs
+ 1, sizeof(int));
4659 cbss
= wpa_s
->current_bss
;
4661 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
4664 if (bss
->ssid_len
== cbss
->ssid_len
&&
4665 os_memcmp(bss
->ssid
, cbss
->ssid
, bss
->ssid_len
) == 0 &&
4666 wpa_blacklist_get(wpa_s
, bss
->bssid
) == NULL
) {
4667 add_freq(freqs
, &num_freqs
, bss
->freq
);
4668 if (num_freqs
== max_freqs
)
4673 if (num_freqs
== 0) {
4682 void wpas_connection_failed(struct wpa_supplicant
*wpa_s
, const u8
*bssid
)
4688 wpas_connect_work_done(wpa_s
);
4691 * Remove possible authentication timeout since the connection failed.
4693 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
, NULL
);
4695 if (wpa_s
->disconnected
) {
4697 * There is no point in blacklisting the AP if this event is
4698 * generated based on local request to disconnect.
4700 wpa_dbg(wpa_s
, MSG_DEBUG
, "Ignore connection failure "
4701 "indication since interface has been put into "
4702 "disconnected state");
4707 * Add the failed BSSID into the blacklist and speed up next scan
4708 * attempt if there could be other APs that could accept association.
4709 * The current blacklist count indicates how many times we have tried
4710 * connecting to this AP and multiple attempts mean that other APs are
4711 * either not available or has already been tried, so that we can start
4712 * increasing the delay here to avoid constant scanning.
4714 count
= wpa_blacklist_add(wpa_s
, bssid
);
4715 if (count
== 1 && wpa_s
->current_bss
) {
4717 * This BSS was not in the blacklist before. If there is
4718 * another BSS available for the same ESS, we should try that
4719 * next. Otherwise, we may as well try this one once more
4720 * before allowing other, likely worse, ESSes to be considered.
4722 freqs
= get_bss_freqs_in_ess(wpa_s
);
4724 wpa_dbg(wpa_s
, MSG_DEBUG
, "Another BSS in this ESS "
4725 "has been seen; try it next");
4726 wpa_blacklist_add(wpa_s
, bssid
);
4728 * On the next scan, go through only the known channels
4729 * used in this ESS based on previous scans to speed up
4730 * common load balancing use case.
4732 os_free(wpa_s
->next_scan_freqs
);
4733 wpa_s
->next_scan_freqs
= freqs
;
4738 * Add previous failure count in case the temporary blacklist was
4739 * cleared due to no other BSSes being available.
4741 count
+= wpa_s
->extra_blacklist_count
;
4743 if (count
> 3 && wpa_s
->current_ssid
) {
4744 wpa_printf(MSG_DEBUG
, "Continuous association failures - "
4745 "consider temporary network disabling");
4746 wpas_auth_failed(wpa_s
, "CONN_FAILED");
4767 wpa_dbg(wpa_s
, MSG_DEBUG
, "Blacklist count %d --> request scan in %d "
4768 "ms", count
, timeout
);
4771 * TODO: if more than one possible AP is available in scan results,
4772 * could try the other ones before requesting a new scan.
4774 wpa_supplicant_req_scan(wpa_s
, timeout
/ 1000,
4775 1000 * (timeout
% 1000));
4779 int wpas_driver_bss_selection(struct wpa_supplicant
*wpa_s
)
4781 return wpa_s
->conf
->ap_scan
== 2 ||
4782 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_BSS_SELECTION
);
4786 #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW)
4787 int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant
*wpa_s
,
4788 struct wpa_ssid
*ssid
,
4792 #ifdef IEEE8021X_EAPOL
4793 struct eap_peer_config
*eap
= &ssid
->eap
;
4795 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: response handle field=%s", field
);
4796 wpa_hexdump_ascii_key(MSG_DEBUG
, "CTRL_IFACE: response value",
4797 (const u8
*) value
, os_strlen(value
));
4799 switch (wpa_supplicant_ctrl_req_from_string(field
)) {
4800 case WPA_CTRL_REQ_EAP_IDENTITY
:
4801 os_free(eap
->identity
);
4802 eap
->identity
= (u8
*) os_strdup(value
);
4803 eap
->identity_len
= os_strlen(value
);
4804 eap
->pending_req_identity
= 0;
4805 if (ssid
== wpa_s
->current_ssid
)
4806 wpa_s
->reassociate
= 1;
4808 case WPA_CTRL_REQ_EAP_PASSWORD
:
4809 bin_clear_free(eap
->password
, eap
->password_len
);
4810 eap
->password
= (u8
*) os_strdup(value
);
4811 eap
->password_len
= os_strlen(value
);
4812 eap
->pending_req_password
= 0;
4813 if (ssid
== wpa_s
->current_ssid
)
4814 wpa_s
->reassociate
= 1;
4816 case WPA_CTRL_REQ_EAP_NEW_PASSWORD
:
4817 bin_clear_free(eap
->new_password
, eap
->new_password_len
);
4818 eap
->new_password
= (u8
*) os_strdup(value
);
4819 eap
->new_password_len
= os_strlen(value
);
4820 eap
->pending_req_new_password
= 0;
4821 if (ssid
== wpa_s
->current_ssid
)
4822 wpa_s
->reassociate
= 1;
4824 case WPA_CTRL_REQ_EAP_PIN
:
4825 str_clear_free(eap
->pin
);
4826 eap
->pin
= os_strdup(value
);
4827 eap
->pending_req_pin
= 0;
4828 if (ssid
== wpa_s
->current_ssid
)
4829 wpa_s
->reassociate
= 1;
4831 case WPA_CTRL_REQ_EAP_OTP
:
4832 bin_clear_free(eap
->otp
, eap
->otp_len
);
4833 eap
->otp
= (u8
*) os_strdup(value
);
4834 eap
->otp_len
= os_strlen(value
);
4835 os_free(eap
->pending_req_otp
);
4836 eap
->pending_req_otp
= NULL
;
4837 eap
->pending_req_otp_len
= 0;
4839 case WPA_CTRL_REQ_EAP_PASSPHRASE
:
4840 str_clear_free(eap
->private_key_passwd
);
4841 eap
->private_key_passwd
= os_strdup(value
);
4842 eap
->pending_req_passphrase
= 0;
4843 if (ssid
== wpa_s
->current_ssid
)
4844 wpa_s
->reassociate
= 1;
4846 case WPA_CTRL_REQ_SIM
:
4847 str_clear_free(eap
->external_sim_resp
);
4848 eap
->external_sim_resp
= os_strdup(value
);
4851 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Unknown field '%s'", field
);
4856 #else /* IEEE8021X_EAPOL */
4857 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: IEEE 802.1X not included");
4859 #endif /* IEEE8021X_EAPOL */
4861 #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */
4864 int wpas_network_disabled(struct wpa_supplicant
*wpa_s
, struct wpa_ssid
*ssid
)
4867 unsigned int drv_enc
;
4875 if (wpa_s
&& wpa_s
->drv_capa_known
)
4876 drv_enc
= wpa_s
->drv_enc
;
4878 drv_enc
= (unsigned int) -1;
4880 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
4881 size_t len
= ssid
->wep_key_len
[i
];
4884 if (len
== 5 && (drv_enc
& WPA_DRIVER_CAPA_ENC_WEP40
))
4886 if (len
== 13 && (drv_enc
& WPA_DRIVER_CAPA_ENC_WEP104
))
4888 if (len
== 16 && (drv_enc
& WPA_DRIVER_CAPA_ENC_WEP128
))
4890 return 1; /* invalid WEP key */
4893 if (wpa_key_mgmt_wpa_psk(ssid
->key_mgmt
) && !ssid
->psk_set
&&
4894 (!ssid
->passphrase
|| ssid
->ssid_len
!= 0) && !ssid
->ext_psk
)
4901 int wpas_is_p2p_prioritized(struct wpa_supplicant
*wpa_s
)
4903 if (wpa_s
->global
->conc_pref
== WPA_CONC_PREF_P2P
)
4905 if (wpa_s
->global
->conc_pref
== WPA_CONC_PREF_STA
)
4911 void wpas_auth_failed(struct wpa_supplicant
*wpa_s
, char *reason
)
4913 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
4915 struct os_reltime now
;
4918 wpa_printf(MSG_DEBUG
, "Authentication failure but no known "
4923 if (ssid
->key_mgmt
== WPA_KEY_MGMT_WPS
)
4926 ssid
->auth_failures
++;
4929 if (ssid
->p2p_group
&&
4930 (wpa_s
->p2p_in_provisioning
|| wpa_s
->show_group_started
)) {
4932 * Skip the wait time since there is a short timeout on the
4933 * connection to a P2P group.
4937 #endif /* CONFIG_P2P */
4939 if (ssid
->auth_failures
> 50)
4941 else if (ssid
->auth_failures
> 10)
4943 else if (ssid
->auth_failures
> 5)
4945 else if (ssid
->auth_failures
> 3)
4947 else if (ssid
->auth_failures
> 2)
4949 else if (ssid
->auth_failures
> 1)
4954 if (ssid
->auth_failures
> 1 &&
4955 wpa_key_mgmt_wpa_ieee8021x(ssid
->key_mgmt
))
4956 dur
+= os_random() % (ssid
->auth_failures
* 10);
4958 os_get_reltime(&now
);
4959 if (now
.sec
+ dur
<= ssid
->disabled_until
.sec
)
4962 ssid
->disabled_until
.sec
= now
.sec
+ dur
;
4964 wpa_msg(wpa_s
, MSG_INFO
, WPA_EVENT_TEMP_DISABLED
4965 "id=%d ssid=\"%s\" auth_failures=%u duration=%d reason=%s",
4966 ssid
->id
, wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
),
4967 ssid
->auth_failures
, dur
, reason
);
4971 void wpas_clear_temp_disabled(struct wpa_supplicant
*wpa_s
,
4972 struct wpa_ssid
*ssid
, int clear_failures
)
4977 if (ssid
->disabled_until
.sec
) {
4978 wpa_msg(wpa_s
, MSG_INFO
, WPA_EVENT_REENABLED
4979 "id=%d ssid=\"%s\"",
4980 ssid
->id
, wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
));
4982 ssid
->disabled_until
.sec
= 0;
4983 ssid
->disabled_until
.usec
= 0;
4985 ssid
->auth_failures
= 0;
4989 int disallowed_bssid(struct wpa_supplicant
*wpa_s
, const u8
*bssid
)
4993 if (wpa_s
->disallow_aps_bssid
== NULL
)
4996 for (i
= 0; i
< wpa_s
->disallow_aps_bssid_count
; i
++) {
4997 if (os_memcmp(wpa_s
->disallow_aps_bssid
+ i
* ETH_ALEN
,
4998 bssid
, ETH_ALEN
) == 0)
5006 int disallowed_ssid(struct wpa_supplicant
*wpa_s
, const u8
*ssid
,
5011 if (wpa_s
->disallow_aps_ssid
== NULL
|| ssid
== NULL
)
5014 for (i
= 0; i
< wpa_s
->disallow_aps_ssid_count
; i
++) {
5015 struct wpa_ssid_value
*s
= &wpa_s
->disallow_aps_ssid
[i
];
5016 if (ssid_len
== s
->ssid_len
&&
5017 os_memcmp(ssid
, s
->ssid
, ssid_len
) == 0)
5026 * wpas_request_connection - Request a new connection
5027 * @wpa_s: Pointer to the network interface
5029 * This function is used to request a new connection to be found. It will mark
5030 * the interface to allow reassociation and request a new scan to find a
5031 * suitable network to connect to.
5033 void wpas_request_connection(struct wpa_supplicant
*wpa_s
)
5035 wpa_s
->normal_scans
= 0;
5036 wpa_s
->scan_req
= NORMAL_SCAN_REQ
;
5037 wpa_supplicant_reinit_autoscan(wpa_s
);
5038 wpa_s
->extra_blacklist_count
= 0;
5039 wpa_s
->disconnected
= 0;
5040 wpa_s
->reassociate
= 1;
5042 if (wpa_supplicant_fast_associate(wpa_s
) != 1)
5043 wpa_supplicant_req_scan(wpa_s
, 0, 0);
5045 wpa_s
->reattach
= 0;
5049 void dump_freq_data(struct wpa_supplicant
*wpa_s
, const char *title
,
5050 struct wpa_used_freq_data
*freqs_data
,
5055 wpa_dbg(wpa_s
, MSG_DEBUG
, "Shared frequencies (len=%u): %s",
5057 for (i
= 0; i
< len
; i
++) {
5058 struct wpa_used_freq_data
*cur
= &freqs_data
[i
];
5059 wpa_dbg(wpa_s
, MSG_DEBUG
, "freq[%u]: %d, flags=0x%X",
5060 i
, cur
->freq
, cur
->flags
);
5066 * Find the operating frequencies of any of the virtual interfaces that
5067 * are using the same radio as the current interface, and in addition, get
5068 * information about the interface types that are using the frequency.
5070 int get_shared_radio_freqs_data(struct wpa_supplicant
*wpa_s
,
5071 struct wpa_used_freq_data
*freqs_data
,
5074 struct wpa_supplicant
*ifs
;
5077 unsigned int idx
= 0, i
;
5079 wpa_dbg(wpa_s
, MSG_DEBUG
,
5080 "Determining shared radio frequencies (max len %u)", len
);
5081 os_memset(freqs_data
, 0, sizeof(struct wpa_used_freq_data
) * len
);
5083 dl_list_for_each(ifs
, &wpa_s
->radio
->ifaces
, struct wpa_supplicant
,
5088 if (ifs
->current_ssid
== NULL
|| ifs
->assoc_freq
== 0)
5091 if (ifs
->current_ssid
->mode
== WPAS_MODE_AP
||
5092 ifs
->current_ssid
->mode
== WPAS_MODE_P2P_GO
)
5093 freq
= ifs
->current_ssid
->frequency
;
5094 else if (wpa_drv_get_bssid(ifs
, bssid
) == 0)
5095 freq
= ifs
->assoc_freq
;
5099 /* Hold only distinct freqs */
5100 for (i
= 0; i
< idx
; i
++)
5101 if (freqs_data
[i
].freq
== freq
)
5105 freqs_data
[idx
++].freq
= freq
;
5107 if (ifs
->current_ssid
->mode
== WPAS_MODE_INFRA
) {
5108 freqs_data
[i
].flags
= ifs
->current_ssid
->p2p_group
?
5109 WPA_FREQ_USED_BY_P2P_CLIENT
:
5110 WPA_FREQ_USED_BY_INFRA_STATION
;
5114 dump_freq_data(wpa_s
, "completed iteration", freqs_data
, idx
);
5120 * Find the operating frequencies of any of the virtual interfaces that
5121 * are using the same radio as the current interface.
5123 int get_shared_radio_freqs(struct wpa_supplicant
*wpa_s
,
5124 int *freq_array
, unsigned int len
)
5126 struct wpa_used_freq_data
*freqs_data
;
5129 os_memset(freq_array
, 0, sizeof(int) * len
);
5131 freqs_data
= os_calloc(len
, sizeof(struct wpa_used_freq_data
));
5135 num
= get_shared_radio_freqs_data(wpa_s
, freqs_data
, len
);
5136 for (i
= 0; i
< num
; i
++)
5137 freq_array
[i
] = freqs_data
[i
].freq
;
5139 os_free(freqs_data
);
5145 static void wpas_rrm_neighbor_rep_timeout_handler(void *data
, void *user_ctx
)
5147 struct rrm_data
*rrm
= data
;
5149 if (!rrm
->notify_neighbor_rep
) {
5150 wpa_printf(MSG_ERROR
,
5151 "RRM: Unexpected neighbor report timeout");
5155 wpa_printf(MSG_DEBUG
, "RRM: Notifying neighbor report - NONE");
5156 rrm
->notify_neighbor_rep(rrm
->neighbor_rep_cb_ctx
, NULL
);
5158 rrm
->notify_neighbor_rep
= NULL
;
5159 rrm
->neighbor_rep_cb_ctx
= NULL
;
5164 * wpas_rrm_reset - Clear and reset all RRM data in wpa_supplicant
5165 * @wpa_s: Pointer to wpa_supplicant
5167 void wpas_rrm_reset(struct wpa_supplicant
*wpa_s
)
5169 wpa_s
->rrm
.rrm_used
= 0;
5171 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler
, &wpa_s
->rrm
,
5173 if (wpa_s
->rrm
.notify_neighbor_rep
)
5174 wpas_rrm_neighbor_rep_timeout_handler(&wpa_s
->rrm
, NULL
);
5175 wpa_s
->rrm
.next_neighbor_rep_token
= 1;
5180 * wpas_rrm_process_neighbor_rep - Handle incoming neighbor report
5181 * @wpa_s: Pointer to wpa_supplicant
5182 * @report: Neighbor report buffer, prefixed by a 1-byte dialog token
5183 * @report_len: Length of neighbor report buffer
5185 void wpas_rrm_process_neighbor_rep(struct wpa_supplicant
*wpa_s
,
5186 const u8
*report
, size_t report_len
)
5188 struct wpabuf
*neighbor_rep
;
5190 wpa_hexdump(MSG_DEBUG
, "RRM: New Neighbor Report", report
, report_len
);
5194 if (report
[0] != wpa_s
->rrm
.next_neighbor_rep_token
- 1) {
5195 wpa_printf(MSG_DEBUG
,
5196 "RRM: Discarding neighbor report with token %d (expected %d)",
5197 report
[0], wpa_s
->rrm
.next_neighbor_rep_token
- 1);
5201 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler
, &wpa_s
->rrm
,
5204 if (!wpa_s
->rrm
.notify_neighbor_rep
) {
5205 wpa_printf(MSG_ERROR
, "RRM: Unexpected neighbor report");
5209 /* skipping the first byte, which is only an id (dialog token) */
5210 neighbor_rep
= wpabuf_alloc(report_len
- 1);
5211 if (neighbor_rep
== NULL
)
5213 wpabuf_put_data(neighbor_rep
, report
+ 1, report_len
- 1);
5214 wpa_printf(MSG_DEBUG
, "RRM: Notifying neighbor report (token = %d)",
5216 wpa_s
->rrm
.notify_neighbor_rep(wpa_s
->rrm
.neighbor_rep_cb_ctx
,
5218 wpa_s
->rrm
.notify_neighbor_rep
= NULL
;
5219 wpa_s
->rrm
.neighbor_rep_cb_ctx
= NULL
;
5223 #if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
5224 /* Workaround different, undefined for Windows, error codes used here */
5226 #define EOPNOTSUPP -1
5227 #define ECANCELED -1
5231 * wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP
5232 * @wpa_s: Pointer to wpa_supplicant
5233 * @ssid: if not null, this is sent in the request. Otherwise, no SSID IE
5234 * is sent in the request.
5235 * @cb: Callback function to be called once the requested report arrives, or
5236 * timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds.
5237 * In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's
5238 * the requester's responsibility to free it.
5239 * In the latter case NULL will be sent in 'neighbor_rep'.
5240 * @cb_ctx: Context value to send the callback function
5241 * Returns: 0 in case of success, negative error code otherwise
5243 * In case there is a previous request which has not been answered yet, the
5244 * new request fails. The caller may retry after RRM_NEIGHBOR_REPORT_TIMEOUT.
5245 * Request must contain a callback function.
5247 int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant
*wpa_s
,
5248 const struct wpa_ssid
*ssid
,
5249 void (*cb
)(void *ctx
,
5250 struct wpabuf
*neighbor_rep
),
5256 if (wpa_s
->wpa_state
!= WPA_COMPLETED
|| wpa_s
->current_ssid
== NULL
) {
5257 wpa_printf(MSG_DEBUG
, "RRM: No connection, no RRM.");
5261 if (!wpa_s
->rrm
.rrm_used
) {
5262 wpa_printf(MSG_DEBUG
, "RRM: No RRM in current connection.");
5266 rrm_ie
= wpa_bss_get_ie(wpa_s
->current_bss
,
5267 WLAN_EID_RRM_ENABLED_CAPABILITIES
);
5268 if (!rrm_ie
|| !(wpa_s
->current_bss
->caps
& IEEE80211_CAP_RRM
) ||
5269 !(rrm_ie
[2] & WLAN_RRM_CAPS_NEIGHBOR_REPORT
)) {
5270 wpa_printf(MSG_DEBUG
,
5271 "RRM: No network support for Neighbor Report.");
5276 wpa_printf(MSG_DEBUG
,
5277 "RRM: Neighbor Report request must provide a callback.");
5281 /* Refuse if there's a live request */
5282 if (wpa_s
->rrm
.notify_neighbor_rep
) {
5283 wpa_printf(MSG_DEBUG
,
5284 "RRM: Currently handling previous Neighbor Report.");
5288 /* 3 = action category + action code + dialog token */
5289 buf
= wpabuf_alloc(3 + (ssid
? 2 + ssid
->ssid_len
: 0));
5291 wpa_printf(MSG_DEBUG
,
5292 "RRM: Failed to allocate Neighbor Report Request");
5296 wpa_printf(MSG_DEBUG
, "RRM: Neighbor report request (for %s), token=%d",
5297 (ssid
? wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
) : ""),
5298 wpa_s
->rrm
.next_neighbor_rep_token
);
5300 wpabuf_put_u8(buf
, WLAN_ACTION_RADIO_MEASUREMENT
);
5301 wpabuf_put_u8(buf
, WLAN_RRM_NEIGHBOR_REPORT_REQUEST
);
5302 wpabuf_put_u8(buf
, wpa_s
->rrm
.next_neighbor_rep_token
);
5304 wpabuf_put_u8(buf
, WLAN_EID_SSID
);
5305 wpabuf_put_u8(buf
, ssid
->ssid_len
);
5306 wpabuf_put_data(buf
, ssid
->ssid
, ssid
->ssid_len
);
5309 wpa_s
->rrm
.next_neighbor_rep_token
++;
5311 if (wpa_drv_send_action(wpa_s
, wpa_s
->assoc_freq
, 0, wpa_s
->bssid
,
5312 wpa_s
->own_addr
, wpa_s
->bssid
,
5313 wpabuf_head(buf
), wpabuf_len(buf
), 0) < 0) {
5314 wpa_printf(MSG_DEBUG
,
5315 "RRM: Failed to send Neighbor Report Request");
5320 wpa_s
->rrm
.neighbor_rep_cb_ctx
= cb_ctx
;
5321 wpa_s
->rrm
.notify_neighbor_rep
= cb
;
5322 eloop_register_timeout(RRM_NEIGHBOR_REPORT_TIMEOUT
, 0,
5323 wpas_rrm_neighbor_rep_timeout_handler
,
5331 void wpas_rrm_handle_link_measurement_request(struct wpa_supplicant
*wpa_s
,
5333 const u8
*frame
, size_t len
,
5337 const struct rrm_link_measurement_request
*req
;
5338 struct rrm_link_measurement_report report
;
5340 if (wpa_s
->wpa_state
!= WPA_COMPLETED
) {
5341 wpa_printf(MSG_INFO
,
5342 "RRM: Ignoring link measurement request. Not associated");
5346 if (!wpa_s
->rrm
.rrm_used
) {
5347 wpa_printf(MSG_INFO
,
5348 "RRM: Ignoring link measurement request. Not RRM network");
5352 if (!(wpa_s
->drv_rrm_flags
& WPA_DRIVER_FLAGS_TX_POWER_INSERTION
)) {
5353 wpa_printf(MSG_INFO
,
5354 "RRM: Measurement report failed. TX power insertion not supported");
5358 req
= (const struct rrm_link_measurement_request
*) frame
;
5359 if (len
< sizeof(*req
)) {
5360 wpa_printf(MSG_INFO
,
5361 "RRM: Link measurement report failed. Request too short");
5365 os_memset(&report
, 0, sizeof(report
));
5366 report
.tpc
.eid
= WLAN_EID_TPC_REPORT
;
5368 report
.rsni
= 255; /* 255 indicates that RSNI is not available */
5369 report
.dialog_token
= req
->dialog_token
;
5372 * It's possible to estimate RCPI based on RSSI in dBm. This
5373 * calculation will not reflect the correct value for high rates,
5374 * but it's good enough for Action frames which are transmitted
5375 * with up to 24 Mbps rates.
5378 report
.rcpi
= 255; /* not available */
5379 else if (rssi
< -110)
5384 report
.rcpi
= (rssi
+ 110) * 2;
5386 /* action_category + action_code */
5387 buf
= wpabuf_alloc(2 + sizeof(report
));
5389 wpa_printf(MSG_ERROR
,
5390 "RRM: Link measurement report failed. Buffer allocation failed");
5394 wpabuf_put_u8(buf
, WLAN_ACTION_RADIO_MEASUREMENT
);
5395 wpabuf_put_u8(buf
, WLAN_RRM_LINK_MEASUREMENT_REPORT
);
5396 wpabuf_put_data(buf
, &report
, sizeof(report
));
5397 wpa_hexdump(MSG_DEBUG
, "RRM: Link measurement report:",
5398 wpabuf_head(buf
), wpabuf_len(buf
));
5400 if (wpa_drv_send_action(wpa_s
, wpa_s
->assoc_freq
, 0, src
,
5401 wpa_s
->own_addr
, wpa_s
->bssid
,
5402 wpabuf_head(buf
), wpabuf_len(buf
), 0)) {
5403 wpa_printf(MSG_ERROR
,
5404 "RRM: Link measurement report failed. Send action failed");