3 * Copyright (c) 2003-2012, 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_server/eap_methods.h"
21 #include "rsn_supp/wpa.h"
24 #include "utils/ext_password.h"
25 #include "l2_packet/l2_packet.h"
26 #include "wpa_supplicant_i.h"
28 #include "ctrl_iface.h"
29 #include "pcsc_funcs.h"
30 #include "common/version.h"
31 #include "rsn_supp/preauth.h"
32 #include "rsn_supp/pmksa_cache.h"
33 #include "common/wpa_ctrl.h"
34 #include "common/ieee802_11_defs.h"
36 #include "blacklist.h"
37 #include "wpas_glue.h"
38 #include "wps_supplicant.h"
41 #include "gas_query.h"
43 #include "p2p_supplicant.h"
49 #include "offchannel.h"
50 #include "hs20_supplicant.h"
52 const char *wpa_supplicant_version
=
53 "wpa_supplicant v" VERSION_STR
"\n"
54 "Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> and contributors";
56 const char *wpa_supplicant_license
=
57 "This software may be distributed under the terms of the BSD license.\n"
58 "See README for more details.\n"
59 #ifdef EAP_TLS_OPENSSL
60 "\nThis product includes software developed by the OpenSSL Project\n"
61 "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n"
62 #endif /* EAP_TLS_OPENSSL */
65 #ifndef CONFIG_NO_STDOUT_DEBUG
66 /* Long text divided into parts in order to fit in C89 strings size limits. */
67 const char *wpa_supplicant_full_license1
=
69 const char *wpa_supplicant_full_license2
=
70 "This software may be distributed under the terms of the BSD license.\n"
72 "Redistribution and use in source and binary forms, with or without\n"
73 "modification, are permitted provided that the following conditions are\n"
76 const char *wpa_supplicant_full_license3
=
77 "1. Redistributions of source code must retain the above copyright\n"
78 " notice, this list of conditions and the following disclaimer.\n"
80 "2. Redistributions in binary form must reproduce the above copyright\n"
81 " notice, this list of conditions and the following disclaimer in the\n"
82 " documentation and/or other materials provided with the distribution.\n"
84 const char *wpa_supplicant_full_license4
=
85 "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n"
86 " names of its contributors may be used to endorse or promote products\n"
87 " derived from this software without specific prior written permission.\n"
89 "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"
90 "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"
91 "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"
92 "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n";
93 const char *wpa_supplicant_full_license5
=
94 "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"
95 "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"
96 "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"
97 "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"
98 "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
99 "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"
100 "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
102 #endif /* CONFIG_NO_STDOUT_DEBUG */
104 extern int wpa_debug_level
;
105 extern int wpa_debug_show_keys
;
106 extern int wpa_debug_timestamp
;
107 extern struct wpa_driver_ops
*wpa_drivers
[];
109 /* Configure default/group WEP keys for static WEP */
110 int wpa_set_wep_keys(struct wpa_supplicant
*wpa_s
, struct wpa_ssid
*ssid
)
114 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
115 if (ssid
->wep_key_len
[i
] == 0)
119 wpa_drv_set_key(wpa_s
, WPA_ALG_WEP
, NULL
,
120 i
, i
== ssid
->wep_tx_keyidx
, NULL
, 0,
121 ssid
->wep_key
[i
], ssid
->wep_key_len
[i
]);
128 static int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant
*wpa_s
,
129 struct wpa_ssid
*ssid
)
136 /* IBSS/WPA-None uses only one key (Group) for both receiving and
137 * sending unicast and multicast packets. */
139 if (ssid
->mode
!= WPAS_MODE_IBSS
) {
140 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Invalid mode %d (not "
141 "IBSS/ad-hoc) for WPA-None", ssid
->mode
);
145 if (!ssid
->psk_set
) {
146 wpa_msg(wpa_s
, MSG_INFO
, "WPA: No PSK configured for "
151 switch (wpa_s
->group_cipher
) {
152 case WPA_CIPHER_CCMP
:
153 os_memcpy(key
, ssid
->psk
, 16);
157 case WPA_CIPHER_TKIP
:
158 /* WPA-None uses the same Michael MIC key for both TX and RX */
159 os_memcpy(key
, ssid
->psk
, 16 + 8);
160 os_memcpy(key
+ 16 + 8, ssid
->psk
+ 16, 8);
165 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Invalid group cipher %d for "
166 "WPA-None", wpa_s
->group_cipher
);
170 /* TODO: should actually remember the previously used seq#, both for TX
171 * and RX from each STA.. */
173 return wpa_drv_set_key(wpa_s
, alg
, NULL
, 0, 1, seq
, 6, key
, keylen
);
177 static void wpa_supplicant_timeout(void *eloop_ctx
, void *timeout_ctx
)
179 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
180 const u8
*bssid
= wpa_s
->bssid
;
181 if (is_zero_ether_addr(bssid
))
182 bssid
= wpa_s
->pending_bssid
;
183 wpa_msg(wpa_s
, MSG_INFO
, "Authentication with " MACSTR
" timed out.",
185 wpa_blacklist_add(wpa_s
, bssid
);
186 wpa_sm_notify_disassoc(wpa_s
->wpa
);
187 wpa_supplicant_disassociate(wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
188 wpa_s
->reassociate
= 1;
191 * If we timed out, the AP or the local radio may be busy.
192 * So, wait a second until scanning again.
194 wpa_supplicant_req_scan(wpa_s
, 1, 0);
199 * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication
200 * @wpa_s: Pointer to wpa_supplicant data
201 * @sec: Number of seconds after which to time out authentication
202 * @usec: Number of microseconds after which to time out authentication
204 * This function is used to schedule a timeout for the current authentication
207 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant
*wpa_s
,
210 if (wpa_s
->conf
&& wpa_s
->conf
->ap_scan
== 0 &&
211 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_WIRED
))
214 wpa_dbg(wpa_s
, MSG_DEBUG
, "Setting authentication timeout: %d sec "
215 "%d usec", sec
, usec
);
216 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
, NULL
);
217 eloop_register_timeout(sec
, usec
, wpa_supplicant_timeout
, wpa_s
, NULL
);
222 * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout
223 * @wpa_s: Pointer to wpa_supplicant data
225 * This function is used to cancel authentication timeout scheduled with
226 * wpa_supplicant_req_auth_timeout() and it is called when authentication has
229 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant
*wpa_s
)
231 wpa_dbg(wpa_s
, MSG_DEBUG
, "Cancelling authentication timeout");
232 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
, NULL
);
233 wpa_blacklist_del(wpa_s
, wpa_s
->bssid
);
238 * wpa_supplicant_initiate_eapol - Configure EAPOL state machine
239 * @wpa_s: Pointer to wpa_supplicant data
241 * This function is used to configure EAPOL state machine based on the selected
242 * authentication mode.
244 void wpa_supplicant_initiate_eapol(struct wpa_supplicant
*wpa_s
)
246 #ifdef IEEE8021X_EAPOL
247 struct eapol_config eapol_conf
;
248 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
250 #ifdef CONFIG_IBSS_RSN
251 if (ssid
->mode
== WPAS_MODE_IBSS
&&
252 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_NONE
&&
253 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_WPA_NONE
) {
255 * RSN IBSS authentication is per-STA and we can disable the
256 * per-BSSID EAPOL authentication.
258 eapol_sm_notify_portControl(wpa_s
->eapol
, ForceAuthorized
);
259 eapol_sm_notify_eap_success(wpa_s
->eapol
, TRUE
);
260 eapol_sm_notify_eap_fail(wpa_s
->eapol
, FALSE
);
263 #endif /* CONFIG_IBSS_RSN */
265 eapol_sm_notify_eap_success(wpa_s
->eapol
, FALSE
);
266 eapol_sm_notify_eap_fail(wpa_s
->eapol
, FALSE
);
268 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_NONE
||
269 wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPA_NONE
)
270 eapol_sm_notify_portControl(wpa_s
->eapol
, ForceAuthorized
);
272 eapol_sm_notify_portControl(wpa_s
->eapol
, Auto
);
274 os_memset(&eapol_conf
, 0, sizeof(eapol_conf
));
275 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
276 eapol_conf
.accept_802_1x_keys
= 1;
277 eapol_conf
.required_keys
= 0;
278 if (ssid
->eapol_flags
& EAPOL_FLAG_REQUIRE_KEY_UNICAST
) {
279 eapol_conf
.required_keys
|= EAPOL_REQUIRE_KEY_UNICAST
;
281 if (ssid
->eapol_flags
& EAPOL_FLAG_REQUIRE_KEY_BROADCAST
) {
282 eapol_conf
.required_keys
|=
283 EAPOL_REQUIRE_KEY_BROADCAST
;
286 if (wpa_s
->conf
&& (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_WIRED
))
287 eapol_conf
.required_keys
= 0;
290 eapol_conf
.fast_reauth
= wpa_s
->conf
->fast_reauth
;
291 eapol_conf
.workaround
= ssid
->eap_workaround
;
292 eapol_conf
.eap_disabled
=
293 !wpa_key_mgmt_wpa_ieee8021x(wpa_s
->key_mgmt
) &&
294 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_IEEE8021X_NO_WPA
&&
295 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_WPS
;
296 eapol_sm_notify_config(wpa_s
->eapol
, &ssid
->eap
, &eapol_conf
);
297 #endif /* IEEE8021X_EAPOL */
302 * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode
303 * @wpa_s: Pointer to wpa_supplicant data
304 * @ssid: Configuration data for the network
306 * This function is used to configure WPA state machine and related parameters
307 * to a mode where WPA is not enabled. This is called as part of the
308 * authentication configuration when the selected network does not use WPA.
310 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant
*wpa_s
,
311 struct wpa_ssid
*ssid
)
315 if (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
)
316 wpa_s
->key_mgmt
= WPA_KEY_MGMT_WPS
;
317 else if (ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_NO_WPA
)
318 wpa_s
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X_NO_WPA
;
320 wpa_s
->key_mgmt
= WPA_KEY_MGMT_NONE
;
321 wpa_sm_set_ap_wpa_ie(wpa_s
->wpa
, NULL
, 0);
322 wpa_sm_set_ap_rsn_ie(wpa_s
->wpa
, NULL
, 0);
323 wpa_sm_set_assoc_wpa_ie(wpa_s
->wpa
, NULL
, 0);
324 wpa_s
->pairwise_cipher
= WPA_CIPHER_NONE
;
325 wpa_s
->group_cipher
= WPA_CIPHER_NONE
;
326 wpa_s
->mgmt_group_cipher
= 0;
328 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
329 if (ssid
->wep_key_len
[i
] > 5) {
330 wpa_s
->pairwise_cipher
= WPA_CIPHER_WEP104
;
331 wpa_s
->group_cipher
= WPA_CIPHER_WEP104
;
333 } else if (ssid
->wep_key_len
[i
] > 0) {
334 wpa_s
->pairwise_cipher
= WPA_CIPHER_WEP40
;
335 wpa_s
->group_cipher
= WPA_CIPHER_WEP40
;
340 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_RSN_ENABLED
, 0);
341 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_KEY_MGMT
, wpa_s
->key_mgmt
);
342 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_PAIRWISE
,
343 wpa_s
->pairwise_cipher
);
344 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_GROUP
, wpa_s
->group_cipher
);
345 #ifdef CONFIG_IEEE80211W
346 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_MGMT_GROUP
,
347 wpa_s
->mgmt_group_cipher
);
348 #endif /* CONFIG_IEEE80211W */
350 pmksa_cache_clear_current(wpa_s
->wpa
);
354 void free_hw_features(struct wpa_supplicant
*wpa_s
)
357 if (wpa_s
->hw
.modes
== NULL
)
360 for (i
= 0; i
< wpa_s
->hw
.num_modes
; i
++) {
361 os_free(wpa_s
->hw
.modes
[i
].channels
);
362 os_free(wpa_s
->hw
.modes
[i
].rates
);
365 os_free(wpa_s
->hw
.modes
);
366 wpa_s
->hw
.modes
= NULL
;
370 static void wpa_supplicant_cleanup(struct wpa_supplicant
*wpa_s
)
372 bgscan_deinit(wpa_s
);
373 autoscan_deinit(wpa_s
);
374 scard_deinit(wpa_s
->scard
);
376 wpa_sm_set_scard_ctx(wpa_s
->wpa
, NULL
);
377 eapol_sm_register_scard_ctx(wpa_s
->eapol
, NULL
);
378 l2_packet_deinit(wpa_s
->l2
);
381 l2_packet_deinit(wpa_s
->l2_br
);
385 if (wpa_s
->conf
!= NULL
) {
386 struct wpa_ssid
*ssid
;
387 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
)
388 wpas_notify_network_removed(wpa_s
, ssid
);
391 os_free(wpa_s
->confname
);
392 wpa_s
->confname
= NULL
;
394 wpa_sm_set_eapol(wpa_s
->wpa
, NULL
);
395 eapol_sm_deinit(wpa_s
->eapol
);
398 rsn_preauth_deinit(wpa_s
->wpa
);
401 wpa_tdls_deinit(wpa_s
->wpa
);
402 #endif /* CONFIG_TDLS */
404 pmksa_candidate_free(wpa_s
->wpa
);
405 wpa_sm_deinit(wpa_s
->wpa
);
407 wpa_blacklist_clear(wpa_s
);
409 wpa_bss_deinit(wpa_s
);
411 wpa_supplicant_cancel_scan(wpa_s
);
412 wpa_supplicant_cancel_auth_timeout(wpa_s
);
413 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures
, wpa_s
, NULL
);
414 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
415 eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report
,
417 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
419 wpas_wps_deinit(wpa_s
);
421 wpabuf_free(wpa_s
->pending_eapol_rx
);
422 wpa_s
->pending_eapol_rx
= NULL
;
424 #ifdef CONFIG_IBSS_RSN
425 ibss_rsn_deinit(wpa_s
->ibss_rsn
);
426 wpa_s
->ibss_rsn
= NULL
;
427 #endif /* CONFIG_IBSS_RSN */
432 wpa_supplicant_ap_deinit(wpa_s
);
433 #endif /* CONFIG_AP */
436 wpas_p2p_deinit(wpa_s
);
437 #endif /* CONFIG_P2P */
439 #ifdef CONFIG_OFFCHANNEL
440 offchannel_deinit(wpa_s
);
441 #endif /* CONFIG_OFFCHANNEL */
443 wpa_supplicant_cancel_sched_scan(wpa_s
);
445 os_free(wpa_s
->next_scan_freqs
);
446 wpa_s
->next_scan_freqs
= NULL
;
448 gas_query_deinit(wpa_s
->gas
);
451 free_hw_features(wpa_s
);
453 os_free(wpa_s
->bssid_filter
);
454 wpa_s
->bssid_filter
= NULL
;
456 wnm_bss_keep_alive_deinit(wpa_s
);
458 ext_password_deinit(wpa_s
->ext_pw
);
459 wpa_s
->ext_pw
= NULL
;
464 * wpa_clear_keys - Clear keys configured for the driver
465 * @wpa_s: Pointer to wpa_supplicant data
466 * @addr: Previously used BSSID or %NULL if not available
468 * This function clears the encryption keys that has been previously configured
471 void wpa_clear_keys(struct wpa_supplicant
*wpa_s
, const u8
*addr
)
473 if (wpa_s
->keys_cleared
) {
474 /* Some drivers (e.g., ndiswrapper & NDIS drivers) seem to have
475 * timing issues with keys being cleared just before new keys
476 * are set or just after association or something similar. This
477 * shows up in group key handshake failing often because of the
478 * client not receiving the first encrypted packets correctly.
479 * Skipping some of the extra key clearing steps seems to help
480 * in completing group key handshake more reliably. */
481 wpa_dbg(wpa_s
, MSG_DEBUG
, "No keys have been configured - "
482 "skip key clearing");
486 /* MLME-DELETEKEYS.request */
487 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, NULL
, 0, 0, NULL
, 0, NULL
, 0);
488 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, NULL
, 1, 0, NULL
, 0, NULL
, 0);
489 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, NULL
, 2, 0, NULL
, 0, NULL
, 0);
490 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, NULL
, 3, 0, NULL
, 0, NULL
, 0);
491 #ifdef CONFIG_IEEE80211W
492 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, NULL
, 4, 0, NULL
, 0, NULL
, 0);
493 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, NULL
, 5, 0, NULL
, 0, NULL
, 0);
494 #endif /* CONFIG_IEEE80211W */
496 wpa_drv_set_key(wpa_s
, WPA_ALG_NONE
, addr
, 0, 0, NULL
, 0, NULL
,
498 /* MLME-SETPROTECTION.request(None) */
499 wpa_drv_mlme_setprotection(
501 MLME_SETPROTECTION_PROTECT_TYPE_NONE
,
502 MLME_SETPROTECTION_KEY_TYPE_PAIRWISE
);
504 wpa_s
->keys_cleared
= 1;
509 * wpa_supplicant_state_txt - Get the connection state name as a text string
510 * @state: State (wpa_state; WPA_*)
511 * Returns: The state name as a printable text string
513 const char * wpa_supplicant_state_txt(enum wpa_states state
)
516 case WPA_DISCONNECTED
:
517 return "DISCONNECTED";
520 case WPA_INTERFACE_DISABLED
:
521 return "INTERFACE_DISABLED";
524 case WPA_AUTHENTICATING
:
525 return "AUTHENTICATING";
526 case WPA_ASSOCIATING
:
527 return "ASSOCIATING";
530 case WPA_4WAY_HANDSHAKE
:
531 return "4WAY_HANDSHAKE";
532 case WPA_GROUP_HANDSHAKE
:
533 return "GROUP_HANDSHAKE";
544 static void wpa_supplicant_start_bgscan(struct wpa_supplicant
*wpa_s
)
546 if (wpas_driver_bss_selection(wpa_s
))
548 if (wpa_s
->current_ssid
== wpa_s
->bgscan_ssid
)
551 bgscan_deinit(wpa_s
);
552 if (wpa_s
->current_ssid
&& wpa_s
->current_ssid
->bgscan
) {
553 if (bgscan_init(wpa_s
, wpa_s
->current_ssid
)) {
554 wpa_dbg(wpa_s
, MSG_DEBUG
, "Failed to initialize "
557 * Live without bgscan; it is only used as a roaming
558 * optimization, so the initial connection is not
562 wpa_s
->bgscan_ssid
= wpa_s
->current_ssid
;
564 wpa_s
->bgscan_ssid
= NULL
;
568 static void wpa_supplicant_stop_bgscan(struct wpa_supplicant
*wpa_s
)
570 if (wpa_s
->bgscan_ssid
!= NULL
) {
571 bgscan_deinit(wpa_s
);
572 wpa_s
->bgscan_ssid
= NULL
;
576 #endif /* CONFIG_BGSCAN */
579 static void wpa_supplicant_start_autoscan(struct wpa_supplicant
*wpa_s
)
581 if (autoscan_init(wpa_s
, 0))
582 wpa_dbg(wpa_s
, MSG_DEBUG
, "Failed to initialize autoscan");
586 static void wpa_supplicant_stop_autoscan(struct wpa_supplicant
*wpa_s
)
588 autoscan_deinit(wpa_s
);
592 void wpa_supplicant_reinit_autoscan(struct wpa_supplicant
*wpa_s
)
594 if (wpa_s
->wpa_state
== WPA_DISCONNECTED
||
595 wpa_s
->wpa_state
== WPA_SCANNING
) {
596 autoscan_deinit(wpa_s
);
597 wpa_supplicant_start_autoscan(wpa_s
);
603 * wpa_supplicant_set_state - Set current connection state
604 * @wpa_s: Pointer to wpa_supplicant data
605 * @state: The new connection state
607 * This function is called whenever the connection state changes, e.g.,
608 * association is completed for WPA/WPA2 4-Way Handshake is started.
610 void wpa_supplicant_set_state(struct wpa_supplicant
*wpa_s
,
611 enum wpa_states state
)
613 enum wpa_states old_state
= wpa_s
->wpa_state
;
615 wpa_dbg(wpa_s
, MSG_DEBUG
, "State: %s -> %s",
616 wpa_supplicant_state_txt(wpa_s
->wpa_state
),
617 wpa_supplicant_state_txt(state
));
619 if (state
!= WPA_SCANNING
)
620 wpa_supplicant_notify_scanning(wpa_s
, 0);
622 if (state
== WPA_COMPLETED
&& wpa_s
->new_connection
) {
623 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
624 struct wpa_ssid
*ssid
= wpa_s
->current_ssid
;
625 wpa_msg(wpa_s
, MSG_INFO
, WPA_EVENT_CONNECTED
"- Connection to "
626 MACSTR
" completed %s [id=%d id_str=%s]",
627 MAC2STR(wpa_s
->bssid
), wpa_s
->reassociated_connection
?
628 "(reauth)" : "(auth)",
629 ssid
? ssid
->id
: -1,
630 ssid
&& ssid
->id_str
? ssid
->id_str
: "");
631 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
632 wpa_s
->new_connection
= 0;
633 wpa_s
->reassociated_connection
= 1;
634 wpa_drv_set_operstate(wpa_s
, 1);
635 #ifndef IEEE8021X_EAPOL
636 wpa_drv_set_supp_port(wpa_s
, 1);
637 #endif /* IEEE8021X_EAPOL */
638 wpa_s
->after_wps
= 0;
640 wpas_p2p_completed(wpa_s
);
641 #endif /* CONFIG_P2P */
643 sme_sched_obss_scan(wpa_s
, 1);
644 } else if (state
== WPA_DISCONNECTED
|| state
== WPA_ASSOCIATING
||
645 state
== WPA_ASSOCIATED
) {
646 wpa_s
->new_connection
= 1;
647 wpa_drv_set_operstate(wpa_s
, 0);
648 #ifndef IEEE8021X_EAPOL
649 wpa_drv_set_supp_port(wpa_s
, 0);
650 #endif /* IEEE8021X_EAPOL */
651 sme_sched_obss_scan(wpa_s
, 0);
653 wpa_s
->wpa_state
= state
;
656 if (state
== WPA_COMPLETED
)
657 wpa_supplicant_start_bgscan(wpa_s
);
659 wpa_supplicant_stop_bgscan(wpa_s
);
660 #endif /* CONFIG_BGSCAN */
662 if (state
== WPA_AUTHENTICATING
)
663 wpa_supplicant_stop_autoscan(wpa_s
);
665 if (state
== WPA_DISCONNECTED
|| state
== WPA_INACTIVE
)
666 wpa_supplicant_start_autoscan(wpa_s
);
668 if (wpa_s
->wpa_state
!= old_state
) {
669 wpas_notify_state_changed(wpa_s
, wpa_s
->wpa_state
, old_state
);
671 if (wpa_s
->wpa_state
== WPA_COMPLETED
||
672 old_state
== WPA_COMPLETED
)
673 wpas_notify_auth_changed(wpa_s
);
678 void wpa_supplicant_terminate_proc(struct wpa_global
*global
)
682 struct wpa_supplicant
*wpa_s
= global
->ifaces
;
684 if (wpas_wps_terminate_pending(wpa_s
) == 1)
688 #endif /* CONFIG_WPS */
695 static void wpa_supplicant_terminate(int sig
, void *signal_ctx
)
697 struct wpa_global
*global
= signal_ctx
;
698 wpa_supplicant_terminate_proc(global
);
702 void wpa_supplicant_clear_status(struct wpa_supplicant
*wpa_s
)
704 enum wpa_states old_state
= wpa_s
->wpa_state
;
706 wpa_s
->pairwise_cipher
= 0;
707 wpa_s
->group_cipher
= 0;
708 wpa_s
->mgmt_group_cipher
= 0;
710 if (wpa_s
->wpa_state
!= WPA_INTERFACE_DISABLED
)
711 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
713 if (wpa_s
->wpa_state
!= old_state
)
714 wpas_notify_state_changed(wpa_s
, wpa_s
->wpa_state
, old_state
);
719 * wpa_supplicant_reload_configuration - Reload configuration data
720 * @wpa_s: Pointer to wpa_supplicant data
721 * Returns: 0 on success or -1 if configuration parsing failed
723 * This function can be used to request that the configuration data is reloaded
724 * (e.g., after configuration file change). This function is reloading
725 * configuration only for one interface, so this may need to be called multiple
726 * times if %wpa_supplicant is controlling multiple interfaces and all
727 * interfaces need reconfiguration.
729 int wpa_supplicant_reload_configuration(struct wpa_supplicant
*wpa_s
)
731 struct wpa_config
*conf
;
735 if (wpa_s
->confname
== NULL
)
737 conf
= wpa_config_read(wpa_s
->confname
);
739 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to parse the configuration "
740 "file '%s' - exiting", wpa_s
->confname
);
743 conf
->changed_parameters
= (unsigned int) -1;
745 reconf_ctrl
= !!conf
->ctrl_interface
!= !!wpa_s
->conf
->ctrl_interface
746 || (conf
->ctrl_interface
&& wpa_s
->conf
->ctrl_interface
&&
747 os_strcmp(conf
->ctrl_interface
,
748 wpa_s
->conf
->ctrl_interface
) != 0);
750 if (reconf_ctrl
&& wpa_s
->ctrl_iface
) {
751 wpa_supplicant_ctrl_iface_deinit(wpa_s
->ctrl_iface
);
752 wpa_s
->ctrl_iface
= NULL
;
755 eapol_sm_invalidate_cached_session(wpa_s
->eapol
);
756 if (wpa_s
->current_ssid
) {
757 wpa_supplicant_deauthenticate(wpa_s
,
758 WLAN_REASON_DEAUTH_LEAVING
);
762 * TODO: should notify EAPOL SM about changes in opensc_engine_path,
763 * pkcs11_engine_path, pkcs11_module_path.
765 if (wpa_key_mgmt_wpa_psk(wpa_s
->key_mgmt
)) {
767 * Clear forced success to clear EAP state for next
770 eapol_sm_notify_eap_success(wpa_s
->eapol
, FALSE
);
772 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
773 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
774 wpa_sm_pmksa_cache_flush(wpa_s
->wpa
, NULL
);
775 wpa_sm_set_fast_reauth(wpa_s
->wpa
, wpa_s
->conf
->fast_reauth
);
776 rsn_preauth_deinit(wpa_s
->wpa
);
778 old_ap_scan
= wpa_s
->conf
->ap_scan
;
779 wpa_config_free(wpa_s
->conf
);
781 if (old_ap_scan
!= wpa_s
->conf
->ap_scan
)
782 wpas_notify_ap_scan_changed(wpa_s
);
785 wpa_s
->ctrl_iface
= wpa_supplicant_ctrl_iface_init(wpa_s
);
787 wpa_supplicant_update_config(wpa_s
);
789 wpa_supplicant_clear_status(wpa_s
);
790 if (wpa_supplicant_enabled_networks(wpa_s
)) {
791 wpa_s
->reassociate
= 1;
792 wpa_supplicant_req_scan(wpa_s
, 0, 0);
794 wpa_dbg(wpa_s
, MSG_DEBUG
, "Reconfiguration completed");
799 static void wpa_supplicant_reconfig(int sig
, void *signal_ctx
)
801 struct wpa_global
*global
= signal_ctx
;
802 struct wpa_supplicant
*wpa_s
;
803 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
804 wpa_dbg(wpa_s
, MSG_DEBUG
, "Signal %d received - reconfiguring",
806 if (wpa_supplicant_reload_configuration(wpa_s
) < 0) {
807 wpa_supplicant_terminate_proc(global
);
813 enum wpa_cipher
cipher_suite2driver(int cipher
)
816 case WPA_CIPHER_NONE
:
818 case WPA_CIPHER_WEP40
:
820 case WPA_CIPHER_WEP104
:
821 return CIPHER_WEP104
;
822 case WPA_CIPHER_CCMP
:
824 case WPA_CIPHER_TKIP
:
831 enum wpa_key_mgmt
key_mgmt2driver(int key_mgmt
)
834 case WPA_KEY_MGMT_NONE
:
835 return KEY_MGMT_NONE
;
836 case WPA_KEY_MGMT_IEEE8021X_NO_WPA
:
837 return KEY_MGMT_802_1X_NO_WPA
;
838 case WPA_KEY_MGMT_IEEE8021X
:
839 return KEY_MGMT_802_1X
;
840 case WPA_KEY_MGMT_WPA_NONE
:
841 return KEY_MGMT_WPA_NONE
;
842 case WPA_KEY_MGMT_FT_IEEE8021X
:
843 return KEY_MGMT_FT_802_1X
;
844 case WPA_KEY_MGMT_FT_PSK
:
845 return KEY_MGMT_FT_PSK
;
846 case WPA_KEY_MGMT_IEEE8021X_SHA256
:
847 return KEY_MGMT_802_1X_SHA256
;
848 case WPA_KEY_MGMT_PSK_SHA256
:
849 return KEY_MGMT_PSK_SHA256
;
850 case WPA_KEY_MGMT_WPS
:
852 case WPA_KEY_MGMT_PSK
:
859 static int wpa_supplicant_suites_from_ai(struct wpa_supplicant
*wpa_s
,
860 struct wpa_ssid
*ssid
,
861 struct wpa_ie_data
*ie
)
863 int ret
= wpa_sm_parse_own_wpa_ie(wpa_s
->wpa
, ie
);
866 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Failed to parse WPA IE "
867 "from association info");
872 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Using WPA IE from AssocReq to set "
874 if (!(ie
->group_cipher
& ssid
->group_cipher
)) {
875 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Driver used disabled group "
876 "cipher 0x%x (mask 0x%x) - reject",
877 ie
->group_cipher
, ssid
->group_cipher
);
880 if (!(ie
->pairwise_cipher
& ssid
->pairwise_cipher
)) {
881 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Driver used disabled pairwise "
882 "cipher 0x%x (mask 0x%x) - reject",
883 ie
->pairwise_cipher
, ssid
->pairwise_cipher
);
886 if (!(ie
->key_mgmt
& ssid
->key_mgmt
)) {
887 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Driver used disabled key "
888 "management 0x%x (mask 0x%x) - reject",
889 ie
->key_mgmt
, ssid
->key_mgmt
);
893 #ifdef CONFIG_IEEE80211W
894 if (!(ie
->capabilities
& WPA_CAPABILITY_MFPC
) &&
895 ssid
->ieee80211w
== MGMT_FRAME_PROTECTION_REQUIRED
) {
896 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Driver associated with an AP "
897 "that does not support management frame protection - "
901 #endif /* CONFIG_IEEE80211W */
908 * wpa_supplicant_set_suites - Set authentication and encryption parameters
909 * @wpa_s: Pointer to wpa_supplicant data
910 * @bss: Scan results for the selected BSS, or %NULL if not available
911 * @ssid: Configuration data for the selected network
912 * @wpa_ie: Buffer for the WPA/RSN IE
913 * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the
914 * used buffer length in case the functions returns success.
915 * Returns: 0 on success or -1 on failure
917 * This function is used to configure authentication and encryption parameters
918 * based on the network configuration and scan result for the selected BSS (if
921 int wpa_supplicant_set_suites(struct wpa_supplicant
*wpa_s
,
922 struct wpa_bss
*bss
, struct wpa_ssid
*ssid
,
923 u8
*wpa_ie
, size_t *wpa_ie_len
)
925 struct wpa_ie_data ie
;
927 const u8
*bss_wpa
, *bss_rsn
;
930 bss_wpa
= wpa_bss_get_vendor_ie(bss
, WPA_IE_VENDOR_TYPE
);
931 bss_rsn
= wpa_bss_get_ie(bss
, WLAN_EID_RSN
);
933 bss_wpa
= bss_rsn
= NULL
;
935 if (bss_rsn
&& (ssid
->proto
& WPA_PROTO_RSN
) &&
936 wpa_parse_wpa_ie(bss_rsn
, 2 + bss_rsn
[1], &ie
) == 0 &&
937 (ie
.group_cipher
& ssid
->group_cipher
) &&
938 (ie
.pairwise_cipher
& ssid
->pairwise_cipher
) &&
939 (ie
.key_mgmt
& ssid
->key_mgmt
)) {
940 wpa_dbg(wpa_s
, MSG_DEBUG
, "RSN: using IEEE 802.11i/D9.0");
941 proto
= WPA_PROTO_RSN
;
942 } else if (bss_wpa
&& (ssid
->proto
& WPA_PROTO_WPA
) &&
943 wpa_parse_wpa_ie(bss_wpa
, 2 +bss_wpa
[1], &ie
) == 0 &&
944 (ie
.group_cipher
& ssid
->group_cipher
) &&
945 (ie
.pairwise_cipher
& ssid
->pairwise_cipher
) &&
946 (ie
.key_mgmt
& ssid
->key_mgmt
)) {
947 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using IEEE 802.11i/D3.0");
948 proto
= WPA_PROTO_WPA
;
950 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to select WPA/RSN");
953 if (ssid
->proto
& WPA_PROTO_RSN
)
954 proto
= WPA_PROTO_RSN
;
956 proto
= WPA_PROTO_WPA
;
957 if (wpa_supplicant_suites_from_ai(wpa_s
, ssid
, &ie
) < 0) {
958 os_memset(&ie
, 0, sizeof(ie
));
959 ie
.group_cipher
= ssid
->group_cipher
;
960 ie
.pairwise_cipher
= ssid
->pairwise_cipher
;
961 ie
.key_mgmt
= ssid
->key_mgmt
;
962 #ifdef CONFIG_IEEE80211W
963 ie
.mgmt_group_cipher
=
964 ssid
->ieee80211w
!= NO_MGMT_FRAME_PROTECTION
?
965 WPA_CIPHER_AES_128_CMAC
: 0;
966 #endif /* CONFIG_IEEE80211W */
967 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Set cipher suites "
968 "based on configuration");
973 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Selected cipher suites: group %d "
974 "pairwise %d key_mgmt %d proto %d",
975 ie
.group_cipher
, ie
.pairwise_cipher
, ie
.key_mgmt
, proto
);
976 #ifdef CONFIG_IEEE80211W
977 if (ssid
->ieee80211w
) {
978 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Selected mgmt group cipher %d",
979 ie
.mgmt_group_cipher
);
981 #endif /* CONFIG_IEEE80211W */
983 wpa_s
->wpa_proto
= proto
;
984 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_PROTO
, proto
);
985 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_RSN_ENABLED
,
986 !!(ssid
->proto
& WPA_PROTO_RSN
));
988 if (bss
|| !wpa_s
->ap_ies_from_associnfo
) {
989 if (wpa_sm_set_ap_wpa_ie(wpa_s
->wpa
, bss_wpa
,
990 bss_wpa
? 2 + bss_wpa
[1] : 0) ||
991 wpa_sm_set_ap_rsn_ie(wpa_s
->wpa
, bss_rsn
,
992 bss_rsn
? 2 + bss_rsn
[1] : 0))
996 sel
= ie
.group_cipher
& ssid
->group_cipher
;
997 if (sel
& WPA_CIPHER_CCMP
) {
998 wpa_s
->group_cipher
= WPA_CIPHER_CCMP
;
999 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using GTK CCMP");
1000 } else if (sel
& WPA_CIPHER_TKIP
) {
1001 wpa_s
->group_cipher
= WPA_CIPHER_TKIP
;
1002 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using GTK TKIP");
1003 } else if (sel
& WPA_CIPHER_WEP104
) {
1004 wpa_s
->group_cipher
= WPA_CIPHER_WEP104
;
1005 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using GTK WEP104");
1006 } else if (sel
& WPA_CIPHER_WEP40
) {
1007 wpa_s
->group_cipher
= WPA_CIPHER_WEP40
;
1008 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using GTK WEP40");
1010 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to select group "
1015 sel
= ie
.pairwise_cipher
& ssid
->pairwise_cipher
;
1016 if (sel
& WPA_CIPHER_CCMP
) {
1017 wpa_s
->pairwise_cipher
= WPA_CIPHER_CCMP
;
1018 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using PTK CCMP");
1019 } else if (sel
& WPA_CIPHER_TKIP
) {
1020 wpa_s
->pairwise_cipher
= WPA_CIPHER_TKIP
;
1021 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using PTK TKIP");
1022 } else if (sel
& WPA_CIPHER_NONE
) {
1023 wpa_s
->pairwise_cipher
= WPA_CIPHER_NONE
;
1024 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using PTK NONE");
1026 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to select pairwise "
1031 sel
= ie
.key_mgmt
& ssid
->key_mgmt
;
1033 #ifdef CONFIG_IEEE80211R
1034 } else if (sel
& WPA_KEY_MGMT_FT_IEEE8021X
) {
1035 wpa_s
->key_mgmt
= WPA_KEY_MGMT_FT_IEEE8021X
;
1036 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT FT/802.1X");
1037 } else if (sel
& WPA_KEY_MGMT_FT_PSK
) {
1038 wpa_s
->key_mgmt
= WPA_KEY_MGMT_FT_PSK
;
1039 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT FT/PSK");
1040 #endif /* CONFIG_IEEE80211R */
1041 #ifdef CONFIG_IEEE80211W
1042 } else if (sel
& WPA_KEY_MGMT_IEEE8021X_SHA256
) {
1043 wpa_s
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X_SHA256
;
1044 wpa_dbg(wpa_s
, MSG_DEBUG
,
1045 "WPA: using KEY_MGMT 802.1X with SHA256");
1046 } else if (sel
& WPA_KEY_MGMT_PSK_SHA256
) {
1047 wpa_s
->key_mgmt
= WPA_KEY_MGMT_PSK_SHA256
;
1048 wpa_dbg(wpa_s
, MSG_DEBUG
,
1049 "WPA: using KEY_MGMT PSK with SHA256");
1050 #endif /* CONFIG_IEEE80211W */
1051 } else if (sel
& WPA_KEY_MGMT_IEEE8021X
) {
1052 wpa_s
->key_mgmt
= WPA_KEY_MGMT_IEEE8021X
;
1053 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT 802.1X");
1054 } else if (sel
& WPA_KEY_MGMT_PSK
) {
1055 wpa_s
->key_mgmt
= WPA_KEY_MGMT_PSK
;
1056 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT WPA-PSK");
1057 } else if (sel
& WPA_KEY_MGMT_WPA_NONE
) {
1058 wpa_s
->key_mgmt
= WPA_KEY_MGMT_WPA_NONE
;
1059 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using KEY_MGMT WPA-NONE");
1061 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to select "
1062 "authenticated key management type");
1066 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_KEY_MGMT
, wpa_s
->key_mgmt
);
1067 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_PAIRWISE
,
1068 wpa_s
->pairwise_cipher
);
1069 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_GROUP
, wpa_s
->group_cipher
);
1071 #ifdef CONFIG_IEEE80211W
1072 sel
= ie
.mgmt_group_cipher
;
1073 if (ssid
->ieee80211w
== NO_MGMT_FRAME_PROTECTION
||
1074 !(ie
.capabilities
& WPA_CAPABILITY_MFPC
))
1076 if (sel
& WPA_CIPHER_AES_128_CMAC
) {
1077 wpa_s
->mgmt_group_cipher
= WPA_CIPHER_AES_128_CMAC
;
1078 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: using MGMT group cipher "
1081 wpa_s
->mgmt_group_cipher
= 0;
1082 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: not using MGMT group cipher");
1084 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_MGMT_GROUP
,
1085 wpa_s
->mgmt_group_cipher
);
1086 wpa_sm_set_param(wpa_s
->wpa
, WPA_PARAM_MFP
, ssid
->ieee80211w
);
1087 #endif /* CONFIG_IEEE80211W */
1089 if (wpa_sm_set_assoc_wpa_ie_default(wpa_s
->wpa
, wpa_ie
, wpa_ie_len
)) {
1090 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to generate WPA IE");
1094 if (wpa_key_mgmt_wpa_psk(ssid
->key_mgmt
)) {
1095 wpa_sm_set_pmk(wpa_s
->wpa
, ssid
->psk
, PMK_LEN
);
1096 #ifndef CONFIG_NO_PBKDF2
1097 if (bss
&& ssid
->bssid_set
&& ssid
->ssid_len
== 0 &&
1100 pbkdf2_sha1(ssid
->passphrase
, (char *) bss
->ssid
,
1101 bss
->ssid_len
, 4096, psk
, PMK_LEN
);
1102 wpa_hexdump_key(MSG_MSGDUMP
, "PSK (from passphrase)",
1104 wpa_sm_set_pmk(wpa_s
->wpa
, psk
, PMK_LEN
);
1106 #endif /* CONFIG_NO_PBKDF2 */
1107 #ifdef CONFIG_EXT_PASSWORD
1108 if (ssid
->ext_psk
) {
1109 struct wpabuf
*pw
= ext_password_get(wpa_s
->ext_pw
,
1111 char pw_str
[64 + 1];
1115 wpa_msg(wpa_s
, MSG_INFO
, "EXT PW: No PSK "
1116 "found from external storage");
1120 if (wpabuf_len(pw
) < 8 || wpabuf_len(pw
) > 64) {
1121 wpa_msg(wpa_s
, MSG_INFO
, "EXT PW: Unexpected "
1122 "PSK length %d in external storage",
1123 (int) wpabuf_len(pw
));
1124 ext_password_free(pw
);
1128 os_memcpy(pw_str
, wpabuf_head(pw
), wpabuf_len(pw
));
1129 pw_str
[wpabuf_len(pw
)] = '\0';
1131 #ifndef CONFIG_NO_PBKDF2
1132 if (wpabuf_len(pw
) >= 8 && wpabuf_len(pw
) < 64 && bss
)
1134 pbkdf2_sha1(pw_str
, (char *) bss
->ssid
,
1135 bss
->ssid_len
, 4096, psk
, PMK_LEN
);
1136 os_memset(pw_str
, 0, sizeof(pw_str
));
1137 wpa_hexdump_key(MSG_MSGDUMP
, "PSK (from "
1138 "external passphrase)",
1140 wpa_sm_set_pmk(wpa_s
->wpa
, psk
, PMK_LEN
);
1142 #endif /* CONFIG_NO_PBKDF2 */
1143 if (wpabuf_len(pw
) == 2 * PMK_LEN
) {
1144 if (hexstr2bin(pw_str
, psk
, PMK_LEN
) < 0) {
1145 wpa_msg(wpa_s
, MSG_INFO
, "EXT PW: "
1146 "Invalid PSK hex string");
1147 os_memset(pw_str
, 0, sizeof(pw_str
));
1148 ext_password_free(pw
);
1151 wpa_sm_set_pmk(wpa_s
->wpa
, psk
, PMK_LEN
);
1153 wpa_msg(wpa_s
, MSG_INFO
, "EXT PW: No suitable "
1155 os_memset(pw_str
, 0, sizeof(pw_str
));
1156 ext_password_free(pw
);
1160 os_memset(pw_str
, 0, sizeof(pw_str
));
1161 ext_password_free(pw
);
1163 #endif /* CONFIG_EXT_PASSWORD */
1165 wpa_sm_set_pmk_from_pmksa(wpa_s
->wpa
);
1172 * wpa_supplicant_associate - Request association
1173 * @wpa_s: Pointer to wpa_supplicant data
1174 * @bss: Scan results for the selected BSS, or %NULL if not available
1175 * @ssid: Configuration data for the selected network
1177 * This function is used to request %wpa_supplicant to associate with a BSS.
1179 void wpa_supplicant_associate(struct wpa_supplicant
*wpa_s
,
1180 struct wpa_bss
*bss
, struct wpa_ssid
*ssid
)
1184 int use_crypt
, ret
, i
, bssid_changed
;
1185 int algs
= WPA_AUTH_ALG_OPEN
;
1186 enum wpa_cipher cipher_pairwise
, cipher_group
;
1187 struct wpa_driver_associate_params params
;
1188 int wep_keys_set
= 0;
1189 struct wpa_driver_capa capa
;
1190 int assoc_failed
= 0;
1191 struct wpa_ssid
*old_ssid
;
1192 #ifdef CONFIG_HT_OVERRIDES
1193 struct ieee80211_ht_capabilities htcaps
;
1194 struct ieee80211_ht_capabilities htcaps_mask
;
1195 #endif /* CONFIG_HT_OVERRIDES */
1197 #ifdef CONFIG_IBSS_RSN
1198 ibss_rsn_deinit(wpa_s
->ibss_rsn
);
1199 wpa_s
->ibss_rsn
= NULL
;
1200 #endif /* CONFIG_IBSS_RSN */
1202 if (ssid
->mode
== WPAS_MODE_AP
|| ssid
->mode
== WPAS_MODE_P2P_GO
||
1203 ssid
->mode
== WPAS_MODE_P2P_GROUP_FORMATION
) {
1205 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_AP
)) {
1206 wpa_msg(wpa_s
, MSG_INFO
, "Driver does not support AP "
1210 wpa_supplicant_create_ap(wpa_s
, ssid
);
1211 wpa_s
->current_bss
= bss
;
1212 #else /* CONFIG_AP */
1213 wpa_msg(wpa_s
, MSG_ERROR
, "AP mode support not included in "
1215 #endif /* CONFIG_AP */
1221 wpa_tdls_ap_ies(wpa_s
->wpa
, (const u8
*) (bss
+ 1),
1223 #endif /* CONFIG_TDLS */
1225 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_SME
) &&
1226 ssid
->mode
== IEEE80211_MODE_INFRA
) {
1227 sme_authenticate(wpa_s
, bss
, ssid
);
1231 os_memset(¶ms
, 0, sizeof(params
));
1232 wpa_s
->reassociate
= 0;
1233 if (bss
&& !wpas_driver_bss_selection(wpa_s
)) {
1234 #ifdef CONFIG_IEEE80211R
1235 const u8
*ie
, *md
= NULL
;
1236 #endif /* CONFIG_IEEE80211R */
1237 wpa_msg(wpa_s
, MSG_INFO
, "Trying to associate with " MACSTR
1238 " (SSID='%s' freq=%d MHz)", MAC2STR(bss
->bssid
),
1239 wpa_ssid_txt(bss
->ssid
, bss
->ssid_len
), bss
->freq
);
1240 bssid_changed
= !is_zero_ether_addr(wpa_s
->bssid
);
1241 os_memset(wpa_s
->bssid
, 0, ETH_ALEN
);
1242 os_memcpy(wpa_s
->pending_bssid
, bss
->bssid
, ETH_ALEN
);
1244 wpas_notify_bssid_changed(wpa_s
);
1245 #ifdef CONFIG_IEEE80211R
1246 ie
= wpa_bss_get_ie(bss
, WLAN_EID_MOBILITY_DOMAIN
);
1247 if (ie
&& ie
[1] >= MOBILITY_DOMAIN_ID_LEN
)
1249 wpa_sm_set_ft_params(wpa_s
->wpa
, ie
, ie
? 2 + ie
[1] : 0);
1251 /* Prepare for the next transition */
1252 wpa_ft_prepare_auth_request(wpa_s
->wpa
, ie
);
1254 #endif /* CONFIG_IEEE80211R */
1256 } else if ((ssid
->ssid
== NULL
|| ssid
->ssid_len
== 0) &&
1257 wpa_s
->conf
->ap_scan
== 2 &&
1258 (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
)) {
1259 /* Use ap_scan==1 style network selection to find the network
1261 wpa_s
->scan_req
= 2;
1262 wpa_s
->reassociate
= 1;
1263 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1265 #endif /* CONFIG_WPS */
1267 wpa_msg(wpa_s
, MSG_INFO
, "Trying to associate with SSID '%s'",
1268 wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
));
1269 os_memset(wpa_s
->pending_bssid
, 0, ETH_ALEN
);
1271 wpa_supplicant_cancel_sched_scan(wpa_s
);
1272 wpa_supplicant_cancel_scan(wpa_s
);
1274 /* Starting new association, so clear the possibly used WPA IE from the
1275 * previous association. */
1276 wpa_sm_set_assoc_wpa_ie(wpa_s
->wpa
, NULL
, 0);
1278 #ifdef IEEE8021X_EAPOL
1279 if (ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
1281 if (ssid
->non_leap
== 0)
1282 algs
= WPA_AUTH_ALG_LEAP
;
1284 algs
|= WPA_AUTH_ALG_LEAP
;
1287 #endif /* IEEE8021X_EAPOL */
1288 wpa_dbg(wpa_s
, MSG_DEBUG
, "Automatic auth_alg selection: 0x%x", algs
);
1289 if (ssid
->auth_alg
) {
1290 algs
= ssid
->auth_alg
;
1291 wpa_dbg(wpa_s
, MSG_DEBUG
, "Overriding auth_alg selection: "
1295 if (bss
&& (wpa_bss_get_vendor_ie(bss
, WPA_IE_VENDOR_TYPE
) ||
1296 wpa_bss_get_ie(bss
, WLAN_EID_RSN
)) &&
1297 wpa_key_mgmt_wpa(ssid
->key_mgmt
)) {
1298 int try_opportunistic
;
1299 try_opportunistic
= ssid
->proactive_key_caching
&&
1300 (ssid
->proto
& WPA_PROTO_RSN
);
1301 if (pmksa_cache_set_current(wpa_s
->wpa
, NULL
, bss
->bssid
,
1302 wpa_s
->current_ssid
,
1303 try_opportunistic
) == 0)
1304 eapol_sm_notify_pmkid_attempt(wpa_s
->eapol
, 1);
1305 wpa_ie_len
= sizeof(wpa_ie
);
1306 if (wpa_supplicant_set_suites(wpa_s
, bss
, ssid
,
1307 wpa_ie
, &wpa_ie_len
)) {
1308 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to set WPA "
1309 "key management and encryption suites");
1312 } else if (wpa_key_mgmt_wpa_any(ssid
->key_mgmt
)) {
1313 wpa_ie_len
= sizeof(wpa_ie
);
1314 if (wpa_supplicant_set_suites(wpa_s
, NULL
, ssid
,
1315 wpa_ie
, &wpa_ie_len
)) {
1316 wpa_msg(wpa_s
, MSG_WARNING
, "WPA: Failed to set WPA "
1317 "key management and encryption suites (no "
1322 } else if (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
) {
1323 struct wpabuf
*wps_ie
;
1324 wps_ie
= wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid
));
1325 if (wps_ie
&& wpabuf_len(wps_ie
) <= sizeof(wpa_ie
)) {
1326 wpa_ie_len
= wpabuf_len(wps_ie
);
1327 os_memcpy(wpa_ie
, wpabuf_head(wps_ie
), wpa_ie_len
);
1330 wpabuf_free(wps_ie
);
1331 wpa_supplicant_set_non_wpa_policy(wpa_s
, ssid
);
1332 if (!bss
|| (bss
->caps
& IEEE80211_CAP_PRIVACY
))
1333 params
.wps
= WPS_MODE_PRIVACY
;
1335 params
.wps
= WPS_MODE_OPEN
;
1336 wpa_s
->wpa_proto
= 0;
1337 #endif /* CONFIG_WPS */
1339 wpa_supplicant_set_non_wpa_policy(wpa_s
, ssid
);
1341 wpa_s
->wpa_proto
= 0;
1345 if (wpa_s
->global
->p2p
) {
1349 pos
= wpa_ie
+ wpa_ie_len
;
1350 len
= sizeof(wpa_ie
) - wpa_ie_len
;
1351 res
= wpas_p2p_assoc_req_ie(wpa_s
, bss
, pos
, len
,
1357 wpa_s
->cross_connect_disallowed
= 0;
1360 p2p
= wpa_bss_get_vendor_ie_multi(bss
, P2P_IE_VENDOR_TYPE
);
1362 wpa_s
->cross_connect_disallowed
=
1363 p2p_get_cross_connect_disallowed(p2p
);
1365 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: WLAN AP %s cross "
1367 wpa_s
->cross_connect_disallowed
?
1368 "disallows" : "allows");
1371 #endif /* CONFIG_P2P */
1374 if (wpa_s
->conf
->hs20
) {
1375 struct wpabuf
*hs20
;
1376 hs20
= wpabuf_alloc(20);
1378 wpas_hs20_add_indication(hs20
);
1379 os_memcpy(wpa_ie
+ wpa_ie_len
, wpabuf_head(hs20
),
1381 wpa_ie_len
+= wpabuf_len(hs20
);
1385 #endif /* CONFIG_HS20 */
1387 #ifdef CONFIG_INTERWORKING
1388 if (wpa_s
->conf
->interworking
) {
1390 if (wpa_ie_len
> 0 && pos
[0] == WLAN_EID_RSN
)
1392 os_memmove(pos
+ 6, pos
, wpa_ie_len
- (pos
- wpa_ie
));
1394 *pos
++ = WLAN_EID_EXT_CAPAB
;
1399 *pos
++ = 0x80; /* Bit 31 - Interworking */
1401 #endif /* CONFIG_INTERWORKING */
1403 wpa_clear_keys(wpa_s
, bss
? bss
->bssid
: NULL
);
1405 cipher_pairwise
= cipher_suite2driver(wpa_s
->pairwise_cipher
);
1406 cipher_group
= cipher_suite2driver(wpa_s
->group_cipher
);
1407 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_NONE
||
1408 wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
1409 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_NONE
)
1411 if (wpa_set_wep_keys(wpa_s
, ssid
)) {
1416 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPS
)
1419 #ifdef IEEE8021X_EAPOL
1420 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
1421 if ((ssid
->eapol_flags
&
1422 (EAPOL_FLAG_REQUIRE_KEY_UNICAST
|
1423 EAPOL_FLAG_REQUIRE_KEY_BROADCAST
)) == 0 &&
1427 /* Assume that dynamic WEP-104 keys will be used and
1428 * set cipher suites in order for drivers to expect
1430 cipher_pairwise
= cipher_group
= CIPHER_WEP104
;
1433 #endif /* IEEE8021X_EAPOL */
1435 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPA_NONE
) {
1436 /* Set the key before (and later after) association */
1437 wpa_supplicant_set_wpa_none_key(wpa_s
, ssid
);
1440 wpa_supplicant_set_state(wpa_s
, WPA_ASSOCIATING
);
1442 params
.ssid
= bss
->ssid
;
1443 params
.ssid_len
= bss
->ssid_len
;
1444 if (!wpas_driver_bss_selection(wpa_s
) || ssid
->bssid_set
) {
1445 wpa_printf(MSG_DEBUG
, "Limit connection to BSSID "
1446 MACSTR
" freq=%u MHz based on scan results "
1448 MAC2STR(bss
->bssid
), bss
->freq
,
1450 params
.bssid
= bss
->bssid
;
1451 params
.freq
= bss
->freq
;
1454 params
.ssid
= ssid
->ssid
;
1455 params
.ssid_len
= ssid
->ssid_len
;
1458 if (ssid
->mode
== WPAS_MODE_IBSS
&& ssid
->bssid_set
&&
1459 wpa_s
->conf
->ap_scan
== 2) {
1460 params
.bssid
= ssid
->bssid
;
1461 params
.fixed_bssid
= 1;
1464 if (ssid
->mode
== WPAS_MODE_IBSS
&& ssid
->frequency
> 0 &&
1466 params
.freq
= ssid
->frequency
; /* Initial channel for IBSS */
1467 params
.wpa_ie
= wpa_ie
;
1468 params
.wpa_ie_len
= wpa_ie_len
;
1469 params
.pairwise_suite
= cipher_pairwise
;
1470 params
.group_suite
= cipher_group
;
1471 params
.key_mgmt_suite
= key_mgmt2driver(wpa_s
->key_mgmt
);
1472 params
.wpa_proto
= wpa_s
->wpa_proto
;
1473 params
.auth_alg
= algs
;
1474 params
.mode
= ssid
->mode
;
1475 params
.bg_scan_period
= ssid
->bg_scan_period
;
1476 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
1477 if (ssid
->wep_key_len
[i
])
1478 params
.wep_key
[i
] = ssid
->wep_key
[i
];
1479 params
.wep_key_len
[i
] = ssid
->wep_key_len
[i
];
1481 params
.wep_tx_keyidx
= ssid
->wep_tx_keyidx
;
1483 if ((wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_4WAY_HANDSHAKE
) &&
1484 (params
.key_mgmt_suite
== KEY_MGMT_PSK
||
1485 params
.key_mgmt_suite
== KEY_MGMT_FT_PSK
)) {
1486 params
.passphrase
= ssid
->passphrase
;
1488 params
.psk
= ssid
->psk
;
1491 params
.drop_unencrypted
= use_crypt
;
1493 #ifdef CONFIG_IEEE80211W
1494 params
.mgmt_frame_protection
= ssid
->ieee80211w
;
1495 if (ssid
->ieee80211w
!= NO_MGMT_FRAME_PROTECTION
&& bss
) {
1496 const u8
*rsn
= wpa_bss_get_ie(bss
, WLAN_EID_RSN
);
1497 struct wpa_ie_data ie
;
1498 if (rsn
&& wpa_parse_wpa_ie(rsn
, 2 + rsn
[1], &ie
) == 0 &&
1500 (WPA_CAPABILITY_MFPC
| WPA_CAPABILITY_MFPR
)) {
1501 wpa_dbg(wpa_s
, MSG_DEBUG
, "WPA: Selected AP supports "
1502 "MFP: require MFP");
1503 params
.mgmt_frame_protection
=
1504 MGMT_FRAME_PROTECTION_REQUIRED
;
1507 #endif /* CONFIG_IEEE80211W */
1509 params
.p2p
= ssid
->p2p_group
;
1511 if (wpa_s
->parent
->set_sta_uapsd
)
1512 params
.uapsd
= wpa_s
->parent
->sta_uapsd
;
1516 #ifdef CONFIG_HT_OVERRIDES
1517 os_memset(&htcaps
, 0, sizeof(htcaps
));
1518 os_memset(&htcaps_mask
, 0, sizeof(htcaps_mask
));
1519 params
.htcaps
= (u8
*) &htcaps
;
1520 params
.htcaps_mask
= (u8
*) &htcaps_mask
;
1521 wpa_supplicant_apply_ht_overrides(wpa_s
, ssid
, ¶ms
);
1522 #endif /* CONFIG_HT_OVERRIDES */
1524 ret
= wpa_drv_associate(wpa_s
, ¶ms
);
1526 wpa_msg(wpa_s
, MSG_INFO
, "Association request to the driver "
1528 if (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_SANE_ERROR_CODES
) {
1530 * The driver is known to mean what is saying, so we
1531 * can stop right here; the association will not
1534 wpas_connection_failed(wpa_s
, wpa_s
->pending_bssid
);
1535 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
1536 os_memset(wpa_s
->pending_bssid
, 0, ETH_ALEN
);
1539 /* try to continue anyway; new association will be tried again
1544 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPA_NONE
) {
1545 /* Set the key after the association just in case association
1546 * cleared the previously configured key. */
1547 wpa_supplicant_set_wpa_none_key(wpa_s
, ssid
);
1548 /* No need to timeout authentication since there is no key
1550 wpa_supplicant_cancel_auth_timeout(wpa_s
);
1551 wpa_supplicant_set_state(wpa_s
, WPA_COMPLETED
);
1552 #ifdef CONFIG_IBSS_RSN
1553 } else if (ssid
->mode
== WPAS_MODE_IBSS
&&
1554 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_NONE
&&
1555 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_WPA_NONE
) {
1557 * RSN IBSS authentication is per-STA and we can disable the
1558 * per-BSSID authentication.
1560 wpa_supplicant_cancel_auth_timeout(wpa_s
);
1561 #endif /* CONFIG_IBSS_RSN */
1563 /* Timeout for IEEE 802.11 authentication and association */
1567 /* give IBSS a bit more time */
1568 timeout
= ssid
->mode
== WPAS_MODE_IBSS
? 10 : 5;
1569 } else if (wpa_s
->conf
->ap_scan
== 1) {
1570 /* give IBSS a bit more time */
1571 timeout
= ssid
->mode
== WPAS_MODE_IBSS
? 20 : 10;
1573 wpa_supplicant_req_auth_timeout(wpa_s
, timeout
, 0);
1576 if (wep_keys_set
&& wpa_drv_get_capa(wpa_s
, &capa
) == 0 &&
1577 capa
.flags
& WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC
) {
1578 /* Set static WEP keys again */
1579 wpa_set_wep_keys(wpa_s
, ssid
);
1582 if (wpa_s
->current_ssid
&& wpa_s
->current_ssid
!= ssid
) {
1584 * Do not allow EAP session resumption between different
1585 * network configurations.
1587 eapol_sm_invalidate_cached_session(wpa_s
->eapol
);
1589 old_ssid
= wpa_s
->current_ssid
;
1590 wpa_s
->current_ssid
= ssid
;
1591 wpa_s
->current_bss
= bss
;
1592 wpa_supplicant_rsn_supp_set_config(wpa_s
, wpa_s
->current_ssid
);
1593 wpa_supplicant_initiate_eapol(wpa_s
);
1594 if (old_ssid
!= wpa_s
->current_ssid
)
1595 wpas_notify_network_changed(wpa_s
);
1599 static void wpa_supplicant_clear_connection(struct wpa_supplicant
*wpa_s
,
1602 struct wpa_ssid
*old_ssid
;
1604 wpa_clear_keys(wpa_s
, addr
);
1605 wpa_supplicant_mark_disassoc(wpa_s
);
1606 old_ssid
= wpa_s
->current_ssid
;
1607 wpa_s
->current_ssid
= NULL
;
1608 wpa_s
->current_bss
= NULL
;
1609 wpa_sm_set_config(wpa_s
->wpa
, NULL
);
1610 eapol_sm_notify_config(wpa_s
->eapol
, NULL
, NULL
);
1611 if (old_ssid
!= wpa_s
->current_ssid
)
1612 wpas_notify_network_changed(wpa_s
);
1613 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
, NULL
);
1618 * wpa_supplicant_disassociate - Disassociate the current connection
1619 * @wpa_s: Pointer to wpa_supplicant data
1620 * @reason_code: IEEE 802.11 reason code for the disassociate frame
1622 * This function is used to request %wpa_supplicant to disassociate with the
1625 void wpa_supplicant_disassociate(struct wpa_supplicant
*wpa_s
,
1629 union wpa_event_data event
;
1631 if (!is_zero_ether_addr(wpa_s
->bssid
)) {
1632 wpa_drv_disassociate(wpa_s
, wpa_s
->bssid
, reason_code
);
1633 addr
= wpa_s
->bssid
;
1634 os_memset(&event
, 0, sizeof(event
));
1635 event
.disassoc_info
.reason_code
= (u16
) reason_code
;
1636 event
.disassoc_info
.locally_generated
= 1;
1637 wpa_supplicant_event(wpa_s
, EVENT_DISASSOC
, &event
);
1640 wpa_supplicant_clear_connection(wpa_s
, addr
);
1645 * wpa_supplicant_deauthenticate - Deauthenticate the current connection
1646 * @wpa_s: Pointer to wpa_supplicant data
1647 * @reason_code: IEEE 802.11 reason code for the deauthenticate frame
1649 * This function is used to request %wpa_supplicant to deauthenticate from the
1652 void wpa_supplicant_deauthenticate(struct wpa_supplicant
*wpa_s
,
1656 union wpa_event_data event
;
1658 if (!is_zero_ether_addr(wpa_s
->bssid
)) {
1659 wpa_drv_deauthenticate(wpa_s
, wpa_s
->bssid
, reason_code
);
1660 addr
= wpa_s
->bssid
;
1661 os_memset(&event
, 0, sizeof(event
));
1662 event
.deauth_info
.reason_code
= (u16
) reason_code
;
1663 event
.deauth_info
.locally_generated
= 1;
1664 wpa_supplicant_event(wpa_s
, EVENT_DEAUTH
, &event
);
1667 wpa_supplicant_clear_connection(wpa_s
, addr
);
1672 * wpa_supplicant_enable_network - Mark a configured network as enabled
1673 * @wpa_s: wpa_supplicant structure for a network interface
1674 * @ssid: wpa_ssid structure for a configured network or %NULL
1676 * Enables the specified network or all networks if no network specified.
1678 void wpa_supplicant_enable_network(struct wpa_supplicant
*wpa_s
,
1679 struct wpa_ssid
*ssid
)
1681 struct wpa_ssid
*other_ssid
;
1685 for (other_ssid
= wpa_s
->conf
->ssid
; other_ssid
;
1686 other_ssid
= other_ssid
->next
) {
1687 if (other_ssid
->disabled
== 2)
1688 continue; /* do not change persistent P2P group
1690 if (other_ssid
== wpa_s
->current_ssid
&&
1691 other_ssid
->disabled
)
1692 wpa_s
->reassociate
= 1;
1694 was_disabled
= other_ssid
->disabled
;
1696 other_ssid
->disabled
= 0;
1698 if (was_disabled
!= other_ssid
->disabled
)
1699 wpas_notify_network_enabled_changed(
1702 if (wpa_s
->reassociate
)
1703 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1704 } else if (ssid
->disabled
&& ssid
->disabled
!= 2) {
1705 if (wpa_s
->current_ssid
== NULL
) {
1707 * Try to reassociate since there is no current
1708 * configuration and a new network was made available.
1710 wpa_s
->reassociate
= 1;
1711 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1714 was_disabled
= ssid
->disabled
;
1718 if (was_disabled
!= ssid
->disabled
)
1719 wpas_notify_network_enabled_changed(wpa_s
, ssid
);
1725 * wpa_supplicant_disable_network - Mark a configured network as disabled
1726 * @wpa_s: wpa_supplicant structure for a network interface
1727 * @ssid: wpa_ssid structure for a configured network or %NULL
1729 * Disables the specified network or all networks if no network specified.
1731 void wpa_supplicant_disable_network(struct wpa_supplicant
*wpa_s
,
1732 struct wpa_ssid
*ssid
)
1734 struct wpa_ssid
*other_ssid
;
1738 for (other_ssid
= wpa_s
->conf
->ssid
; other_ssid
;
1739 other_ssid
= other_ssid
->next
) {
1740 was_disabled
= other_ssid
->disabled
;
1741 if (was_disabled
== 2)
1742 continue; /* do not change persistent P2P group
1745 other_ssid
->disabled
= 1;
1747 if (was_disabled
!= other_ssid
->disabled
)
1748 wpas_notify_network_enabled_changed(
1751 if (wpa_s
->current_ssid
)
1752 wpa_supplicant_disassociate(
1753 wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
1754 } else if (ssid
->disabled
!= 2) {
1755 if (ssid
== wpa_s
->current_ssid
)
1756 wpa_supplicant_disassociate(
1757 wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
1759 was_disabled
= ssid
->disabled
;
1763 if (was_disabled
!= ssid
->disabled
)
1764 wpas_notify_network_enabled_changed(wpa_s
, ssid
);
1770 * wpa_supplicant_select_network - Attempt association with a network
1771 * @wpa_s: wpa_supplicant structure for a network interface
1772 * @ssid: wpa_ssid structure for a configured network or %NULL for any network
1774 void wpa_supplicant_select_network(struct wpa_supplicant
*wpa_s
,
1775 struct wpa_ssid
*ssid
)
1778 struct wpa_ssid
*other_ssid
;
1779 int disconnected
= 0;
1781 if (ssid
&& ssid
!= wpa_s
->current_ssid
&& wpa_s
->current_ssid
) {
1782 wpa_supplicant_disassociate(
1783 wpa_s
, WLAN_REASON_DEAUTH_LEAVING
);
1788 * Mark all other networks disabled or mark all networks enabled if no
1789 * network specified.
1791 for (other_ssid
= wpa_s
->conf
->ssid
; other_ssid
;
1792 other_ssid
= other_ssid
->next
) {
1793 int was_disabled
= other_ssid
->disabled
;
1794 if (was_disabled
== 2)
1795 continue; /* do not change persistent P2P group data */
1797 other_ssid
->disabled
= ssid
? (ssid
->id
!= other_ssid
->id
) : 0;
1799 if (was_disabled
!= other_ssid
->disabled
)
1800 wpas_notify_network_enabled_changed(wpa_s
, other_ssid
);
1803 if (ssid
&& ssid
== wpa_s
->current_ssid
&& wpa_s
->current_ssid
) {
1804 /* We are already associated with the selected network */
1805 wpa_printf(MSG_DEBUG
, "Already associated with the "
1806 "selected network - do nothing");
1811 wpa_s
->current_ssid
= ssid
;
1812 wpa_s
->connect_without_scan
= NULL
;
1813 wpa_s
->disconnected
= 0;
1814 wpa_s
->reassociate
= 1;
1815 wpa_supplicant_req_scan(wpa_s
, 0, disconnected
? 100000 : 0);
1818 wpas_notify_network_selected(wpa_s
, ssid
);
1823 * wpa_supplicant_set_ap_scan - Set AP scan mode for interface
1824 * @wpa_s: wpa_supplicant structure for a network interface
1825 * @ap_scan: AP scan mode
1826 * Returns: 0 if succeed or -1 if ap_scan has an invalid value
1829 int wpa_supplicant_set_ap_scan(struct wpa_supplicant
*wpa_s
, int ap_scan
)
1834 if (ap_scan
< 0 || ap_scan
> 2)
1838 if (ap_scan
== 2 && ap_scan
!= wpa_s
->conf
->ap_scan
&&
1839 wpa_s
->wpa_state
>= WPA_ASSOCIATING
&&
1840 wpa_s
->wpa_state
< WPA_COMPLETED
) {
1841 wpa_printf(MSG_ERROR
, "ap_scan = %d (%d) rejected while "
1842 "associating", wpa_s
->conf
->ap_scan
, ap_scan
);
1845 #endif /* ANDROID */
1847 old_ap_scan
= wpa_s
->conf
->ap_scan
;
1848 wpa_s
->conf
->ap_scan
= ap_scan
;
1850 if (old_ap_scan
!= wpa_s
->conf
->ap_scan
)
1851 wpas_notify_ap_scan_changed(wpa_s
);
1858 * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age
1859 * @wpa_s: wpa_supplicant structure for a network interface
1860 * @expire_age: Expiration age in seconds
1861 * Returns: 0 if succeed or -1 if expire_age has an invalid value
1864 int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant
*wpa_s
,
1865 unsigned int bss_expire_age
)
1867 if (bss_expire_age
< 10) {
1868 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid bss expiration age %u",
1872 wpa_msg(wpa_s
, MSG_DEBUG
, "Setting bss expiration age: %d sec",
1874 wpa_s
->conf
->bss_expiration_age
= bss_expire_age
;
1881 * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count
1882 * @wpa_s: wpa_supplicant structure for a network interface
1883 * @expire_count: number of scans after which an unseen BSS is reclaimed
1884 * Returns: 0 if succeed or -1 if expire_count has an invalid value
1887 int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant
*wpa_s
,
1888 unsigned int bss_expire_count
)
1890 if (bss_expire_count
< 1) {
1891 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid bss expiration count %u",
1895 wpa_msg(wpa_s
, MSG_DEBUG
, "Setting bss expiration scan count: %u",
1897 wpa_s
->conf
->bss_expiration_scan_count
= bss_expire_count
;
1904 * wpa_supplicant_set_scan_interval - Set scan interval
1905 * @wpa_s: wpa_supplicant structure for a network interface
1906 * @scan_interval: scan interval in seconds
1907 * Returns: 0 if succeed or -1 if scan_interval has an invalid value
1910 int wpa_supplicant_set_scan_interval(struct wpa_supplicant
*wpa_s
,
1913 if (scan_interval
< 0) {
1914 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid scan interval %d",
1918 wpa_msg(wpa_s
, MSG_DEBUG
, "Setting scan interval: %d sec",
1920 wpa_s
->scan_interval
= scan_interval
;
1927 * wpa_supplicant_set_debug_params - Set global debug params
1928 * @global: wpa_global structure
1929 * @debug_level: debug level
1930 * @debug_timestamp: determines if show timestamp in debug data
1931 * @debug_show_keys: determines if show keys in debug data
1932 * Returns: 0 if succeed or -1 if debug_level has wrong value
1934 int wpa_supplicant_set_debug_params(struct wpa_global
*global
, int debug_level
,
1935 int debug_timestamp
, int debug_show_keys
)
1938 int old_level
, old_timestamp
, old_show_keys
;
1940 /* check for allowed debuglevels */
1941 if (debug_level
!= MSG_EXCESSIVE
&&
1942 debug_level
!= MSG_MSGDUMP
&&
1943 debug_level
!= MSG_DEBUG
&&
1944 debug_level
!= MSG_INFO
&&
1945 debug_level
!= MSG_WARNING
&&
1946 debug_level
!= MSG_ERROR
)
1949 old_level
= wpa_debug_level
;
1950 old_timestamp
= wpa_debug_timestamp
;
1951 old_show_keys
= wpa_debug_show_keys
;
1953 wpa_debug_level
= debug_level
;
1954 wpa_debug_timestamp
= debug_timestamp
? 1 : 0;
1955 wpa_debug_show_keys
= debug_show_keys
? 1 : 0;
1957 if (wpa_debug_level
!= old_level
)
1958 wpas_notify_debug_level_changed(global
);
1959 if (wpa_debug_timestamp
!= old_timestamp
)
1960 wpas_notify_debug_timestamp_changed(global
);
1961 if (wpa_debug_show_keys
!= old_show_keys
)
1962 wpas_notify_debug_show_keys_changed(global
);
1969 * wpa_supplicant_get_ssid - Get a pointer to the current network structure
1970 * @wpa_s: Pointer to wpa_supplicant data
1971 * Returns: A pointer to the current network structure or %NULL on failure
1973 struct wpa_ssid
* wpa_supplicant_get_ssid(struct wpa_supplicant
*wpa_s
)
1975 struct wpa_ssid
*entry
;
1976 u8 ssid
[MAX_SSID_LEN
];
1982 res
= wpa_drv_get_ssid(wpa_s
, ssid
);
1984 wpa_msg(wpa_s
, MSG_WARNING
, "Could not read SSID from "
1990 if (wpa_drv_get_bssid(wpa_s
, bssid
) < 0) {
1991 wpa_msg(wpa_s
, MSG_WARNING
, "Could not read BSSID from "
1996 wired
= wpa_s
->conf
->ap_scan
== 0 &&
1997 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_WIRED
);
1999 entry
= wpa_s
->conf
->ssid
;
2001 if (!wpas_network_disabled(wpa_s
, entry
) &&
2002 ((ssid_len
== entry
->ssid_len
&&
2003 os_memcmp(ssid
, entry
->ssid
, ssid_len
) == 0) || wired
) &&
2004 (!entry
->bssid_set
||
2005 os_memcmp(bssid
, entry
->bssid
, ETH_ALEN
) == 0))
2008 if (!wpas_network_disabled(wpa_s
, entry
) &&
2009 (entry
->key_mgmt
& WPA_KEY_MGMT_WPS
) &&
2010 (entry
->ssid
== NULL
|| entry
->ssid_len
== 0) &&
2011 (!entry
->bssid_set
||
2012 os_memcmp(bssid
, entry
->bssid
, ETH_ALEN
) == 0))
2014 #endif /* CONFIG_WPS */
2016 if (!wpas_network_disabled(wpa_s
, entry
) && entry
->bssid_set
&&
2017 entry
->ssid_len
== 0 &&
2018 os_memcmp(bssid
, entry
->bssid
, ETH_ALEN
) == 0)
2021 entry
= entry
->next
;
2028 static int select_driver(struct wpa_supplicant
*wpa_s
, int i
)
2030 struct wpa_global
*global
= wpa_s
->global
;
2032 if (wpa_drivers
[i
]->global_init
&& global
->drv_priv
[i
] == NULL
) {
2033 global
->drv_priv
[i
] = wpa_drivers
[i
]->global_init();
2034 if (global
->drv_priv
[i
] == NULL
) {
2035 wpa_printf(MSG_ERROR
, "Failed to initialize driver "
2036 "'%s'", wpa_drivers
[i
]->name
);
2041 wpa_s
->driver
= wpa_drivers
[i
];
2042 wpa_s
->global_drv_priv
= global
->drv_priv
[i
];
2048 static int wpa_supplicant_set_driver(struct wpa_supplicant
*wpa_s
,
2053 const char *pos
, *driver
= name
;
2058 if (wpa_drivers
[0] == NULL
) {
2059 wpa_msg(wpa_s
, MSG_ERROR
, "No driver interfaces build into "
2065 /* default to first driver in the list */
2066 return select_driver(wpa_s
, 0);
2070 pos
= os_strchr(driver
, ',');
2074 len
= os_strlen(driver
);
2076 for (i
= 0; wpa_drivers
[i
]; i
++) {
2077 if (os_strlen(wpa_drivers
[i
]->name
) == len
&&
2078 os_strncmp(driver
, wpa_drivers
[i
]->name
, len
) ==
2080 /* First driver that succeeds wins */
2081 if (select_driver(wpa_s
, i
) == 0)
2089 wpa_msg(wpa_s
, MSG_ERROR
, "Unsupported driver '%s'", name
);
2095 * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant
2096 * @ctx: Context pointer (wpa_s); this is the ctx variable registered
2097 * with struct wpa_driver_ops::init()
2098 * @src_addr: Source address of the EAPOL frame
2099 * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header)
2100 * @len: Length of the EAPOL data
2102 * This function is called for each received EAPOL frame. Most driver
2103 * interfaces rely on more generic OS mechanism for receiving frames through
2104 * l2_packet, but if such a mechanism is not available, the driver wrapper may
2105 * take care of received EAPOL frames and deliver them to the core supplicant
2106 * code by calling this function.
2108 void wpa_supplicant_rx_eapol(void *ctx
, const u8
*src_addr
,
2109 const u8
*buf
, size_t len
)
2111 struct wpa_supplicant
*wpa_s
= ctx
;
2113 wpa_dbg(wpa_s
, MSG_DEBUG
, "RX EAPOL from " MACSTR
, MAC2STR(src_addr
));
2114 wpa_hexdump(MSG_MSGDUMP
, "RX EAPOL", buf
, len
);
2116 if (wpa_s
->wpa_state
< WPA_ASSOCIATED
) {
2118 * There is possible race condition between receiving the
2119 * association event and the EAPOL frame since they are coming
2120 * through different paths from the driver. In order to avoid
2121 * issues in trying to process the EAPOL frame before receiving
2122 * association information, lets queue it for processing until
2123 * the association event is received.
2125 wpa_dbg(wpa_s
, MSG_DEBUG
, "Not associated - Delay processing "
2126 "of received EAPOL frame");
2127 wpabuf_free(wpa_s
->pending_eapol_rx
);
2128 wpa_s
->pending_eapol_rx
= wpabuf_alloc_copy(buf
, len
);
2129 if (wpa_s
->pending_eapol_rx
) {
2130 os_get_time(&wpa_s
->pending_eapol_rx_time
);
2131 os_memcpy(wpa_s
->pending_eapol_rx_src
, src_addr
,
2138 if (wpa_s
->ap_iface
) {
2139 wpa_supplicant_ap_rx_eapol(wpa_s
, src_addr
, buf
, len
);
2142 #endif /* CONFIG_AP */
2144 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_NONE
) {
2145 wpa_dbg(wpa_s
, MSG_DEBUG
, "Ignored received EAPOL frame since "
2146 "no key management is configured");
2150 if (wpa_s
->eapol_received
== 0 &&
2151 (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_4WAY_HANDSHAKE
) ||
2152 !wpa_key_mgmt_wpa_psk(wpa_s
->key_mgmt
) ||
2153 wpa_s
->wpa_state
!= WPA_COMPLETED
) &&
2154 (wpa_s
->current_ssid
== NULL
||
2155 wpa_s
->current_ssid
->mode
!= IEEE80211_MODE_IBSS
)) {
2156 /* Timeout for completing IEEE 802.1X and WPA authentication */
2157 wpa_supplicant_req_auth_timeout(
2159 (wpa_key_mgmt_wpa_ieee8021x(wpa_s
->key_mgmt
) ||
2160 wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
||
2161 wpa_s
->key_mgmt
== WPA_KEY_MGMT_WPS
) ?
2164 wpa_s
->eapol_received
++;
2166 if (wpa_s
->countermeasures
) {
2167 wpa_msg(wpa_s
, MSG_INFO
, "WPA: Countermeasures - dropped "
2172 #ifdef CONFIG_IBSS_RSN
2173 if (wpa_s
->current_ssid
&&
2174 wpa_s
->current_ssid
->mode
== WPAS_MODE_IBSS
) {
2175 ibss_rsn_rx_eapol(wpa_s
->ibss_rsn
, src_addr
, buf
, len
);
2178 #endif /* CONFIG_IBSS_RSN */
2180 /* Source address of the incoming EAPOL frame could be compared to the
2181 * current BSSID. However, it is possible that a centralized
2182 * Authenticator could be using another MAC address than the BSSID of
2183 * an AP, so just allow any address to be used for now. The replies are
2184 * still sent to the current BSSID (if available), though. */
2186 os_memcpy(wpa_s
->last_eapol_src
, src_addr
, ETH_ALEN
);
2187 if (!wpa_key_mgmt_wpa_psk(wpa_s
->key_mgmt
) &&
2188 eapol_sm_rx_eapol(wpa_s
->eapol
, src_addr
, buf
, len
) > 0)
2190 wpa_drv_poll(wpa_s
);
2191 if (!(wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_4WAY_HANDSHAKE
))
2192 wpa_sm_rx_eapol(wpa_s
->wpa
, src_addr
, buf
, len
);
2193 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s
->key_mgmt
)) {
2195 * Set portValid = TRUE here since we are going to skip 4-way
2196 * handshake processing which would normally set portValid. We
2197 * need this to allow the EAPOL state machines to be completed
2198 * without going through EAPOL-Key handshake.
2200 eapol_sm_notify_portValid(wpa_s
->eapol
, TRUE
);
2205 int wpa_supplicant_update_mac_addr(struct wpa_supplicant
*wpa_s
)
2207 if (wpa_s
->driver
->send_eapol
) {
2208 const u8
*addr
= wpa_drv_get_mac_addr(wpa_s
);
2210 os_memcpy(wpa_s
->own_addr
, addr
, ETH_ALEN
);
2211 } else if (!(wpa_s
->drv_flags
&
2212 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE
)) {
2213 l2_packet_deinit(wpa_s
->l2
);
2214 wpa_s
->l2
= l2_packet_init(wpa_s
->ifname
,
2215 wpa_drv_get_mac_addr(wpa_s
),
2217 wpa_supplicant_rx_eapol
, wpa_s
, 0);
2218 if (wpa_s
->l2
== NULL
)
2221 const u8
*addr
= wpa_drv_get_mac_addr(wpa_s
);
2223 os_memcpy(wpa_s
->own_addr
, addr
, ETH_ALEN
);
2226 if (wpa_s
->l2
&& l2_packet_get_own_addr(wpa_s
->l2
, wpa_s
->own_addr
)) {
2227 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to get own L2 address");
2231 wpa_dbg(wpa_s
, MSG_DEBUG
, "Own MAC address: " MACSTR
,
2232 MAC2STR(wpa_s
->own_addr
));
2233 wpa_sm_set_own_addr(wpa_s
->wpa
, wpa_s
->own_addr
);
2239 static void wpa_supplicant_rx_eapol_bridge(void *ctx
, const u8
*src_addr
,
2240 const u8
*buf
, size_t len
)
2242 struct wpa_supplicant
*wpa_s
= ctx
;
2243 const struct l2_ethhdr
*eth
;
2245 if (len
< sizeof(*eth
))
2247 eth
= (const struct l2_ethhdr
*) buf
;
2249 if (os_memcmp(eth
->h_dest
, wpa_s
->own_addr
, ETH_ALEN
) != 0 &&
2250 !(eth
->h_dest
[0] & 0x01)) {
2251 wpa_dbg(wpa_s
, MSG_DEBUG
, "RX EAPOL from " MACSTR
" to " MACSTR
2252 " (bridge - not for this interface - ignore)",
2253 MAC2STR(src_addr
), MAC2STR(eth
->h_dest
));
2257 wpa_dbg(wpa_s
, MSG_DEBUG
, "RX EAPOL from " MACSTR
" to " MACSTR
2258 " (bridge)", MAC2STR(src_addr
), MAC2STR(eth
->h_dest
));
2259 wpa_supplicant_rx_eapol(wpa_s
, src_addr
, buf
+ sizeof(*eth
),
2260 len
- sizeof(*eth
));
2265 * wpa_supplicant_driver_init - Initialize driver interface parameters
2266 * @wpa_s: Pointer to wpa_supplicant data
2267 * Returns: 0 on success, -1 on failure
2269 * This function is called to initialize driver interface parameters.
2270 * wpa_drv_init() must have been called before this function to initialize the
2273 int wpa_supplicant_driver_init(struct wpa_supplicant
*wpa_s
)
2275 static int interface_count
= 0;
2277 if (wpa_supplicant_update_mac_addr(wpa_s
) < 0)
2280 if (wpa_s
->bridge_ifname
[0]) {
2281 wpa_dbg(wpa_s
, MSG_DEBUG
, "Receiving packets from bridge "
2282 "interface '%s'", wpa_s
->bridge_ifname
);
2283 wpa_s
->l2_br
= l2_packet_init(wpa_s
->bridge_ifname
,
2286 wpa_supplicant_rx_eapol_bridge
,
2288 if (wpa_s
->l2_br
== NULL
) {
2289 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to open l2_packet "
2290 "connection for the bridge interface '%s'",
2291 wpa_s
->bridge_ifname
);
2296 wpa_clear_keys(wpa_s
, NULL
);
2298 /* Make sure that TKIP countermeasures are not left enabled (could
2299 * happen if wpa_supplicant is killed during countermeasures. */
2300 wpa_drv_set_countermeasures(wpa_s
, 0);
2302 wpa_dbg(wpa_s
, MSG_DEBUG
, "RSN: flushing PMKID list in the driver");
2303 wpa_drv_flush_pmkid(wpa_s
);
2305 wpa_s
->prev_scan_ssid
= WILDCARD_SSID_SCAN
;
2306 wpa_s
->prev_scan_wildcard
= 0;
2308 if (wpa_supplicant_enabled_networks(wpa_s
)) {
2309 if (wpa_supplicant_delayed_sched_scan(wpa_s
, interface_count
,
2311 wpa_supplicant_req_scan(wpa_s
, interface_count
,
2315 wpa_supplicant_set_state(wpa_s
, WPA_INACTIVE
);
2321 static int wpa_supplicant_daemon(const char *pid_file
)
2323 wpa_printf(MSG_DEBUG
, "Daemonize..");
2324 return os_daemonize(pid_file
);
2328 static struct wpa_supplicant
* wpa_supplicant_alloc(void)
2330 struct wpa_supplicant
*wpa_s
;
2332 wpa_s
= os_zalloc(sizeof(*wpa_s
));
2335 wpa_s
->scan_req
= 1;
2336 wpa_s
->scan_interval
= 5;
2337 wpa_s
->new_connection
= 1;
2338 wpa_s
->parent
= wpa_s
;
2339 wpa_s
->sched_scanning
= 0;
2345 #ifdef CONFIG_HT_OVERRIDES
2347 static int wpa_set_htcap_mcs(struct wpa_supplicant
*wpa_s
,
2348 struct ieee80211_ht_capabilities
*htcaps
,
2349 struct ieee80211_ht_capabilities
*htcaps_mask
,
2352 /* parse ht_mcs into hex array */
2354 const char *tmp
= ht_mcs
;
2357 /* If ht_mcs is null, do not set anything */
2361 /* This is what we are setting in the kernel */
2362 os_memset(&htcaps
->supported_mcs_set
, 0, IEEE80211_HT_MCS_MASK_LEN
);
2364 wpa_msg(wpa_s
, MSG_DEBUG
, "set_htcap, ht_mcs -:%s:-", ht_mcs
);
2366 for (i
= 0; i
< IEEE80211_HT_MCS_MASK_LEN
; i
++) {
2368 long v
= strtol(tmp
, &end
, 16);
2370 wpa_msg(wpa_s
, MSG_DEBUG
,
2371 "htcap value[%i]: %ld end: %p tmp: %p",
2376 htcaps
->supported_mcs_set
[i
] = v
;
2379 wpa_msg(wpa_s
, MSG_ERROR
,
2380 "Failed to parse ht-mcs: %s, error: %s\n",
2381 ht_mcs
, strerror(errno
));
2387 * If we were able to parse any values, then set mask for the MCS set.
2390 os_memset(&htcaps_mask
->supported_mcs_set
, 0xff,
2391 IEEE80211_HT_MCS_MASK_LEN
- 1);
2392 /* skip the 3 reserved bits */
2393 htcaps_mask
->supported_mcs_set
[IEEE80211_HT_MCS_MASK_LEN
- 1] =
2401 static int wpa_disable_max_amsdu(struct wpa_supplicant
*wpa_s
,
2402 struct ieee80211_ht_capabilities
*htcaps
,
2403 struct ieee80211_ht_capabilities
*htcaps_mask
,
2408 wpa_msg(wpa_s
, MSG_DEBUG
, "set_disable_max_amsdu: %d", disabled
);
2413 msk
= host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE
);
2414 htcaps_mask
->ht_capabilities_info
|= msk
;
2416 htcaps
->ht_capabilities_info
&= msk
;
2418 htcaps
->ht_capabilities_info
|= msk
;
2424 static int wpa_set_ampdu_factor(struct wpa_supplicant
*wpa_s
,
2425 struct ieee80211_ht_capabilities
*htcaps
,
2426 struct ieee80211_ht_capabilities
*htcaps_mask
,
2429 wpa_msg(wpa_s
, MSG_DEBUG
, "set_ampdu_factor: %d", factor
);
2434 if (factor
< 0 || factor
> 3) {
2435 wpa_msg(wpa_s
, MSG_ERROR
, "ampdu_factor: %d out of range. "
2436 "Must be 0-3 or -1", factor
);
2440 htcaps_mask
->a_mpdu_params
|= 0x3; /* 2 bits for factor */
2441 htcaps
->a_mpdu_params
&= ~0x3;
2442 htcaps
->a_mpdu_params
|= factor
& 0x3;
2448 static int wpa_set_ampdu_density(struct wpa_supplicant
*wpa_s
,
2449 struct ieee80211_ht_capabilities
*htcaps
,
2450 struct ieee80211_ht_capabilities
*htcaps_mask
,
2453 wpa_msg(wpa_s
, MSG_DEBUG
, "set_ampdu_density: %d", density
);
2458 if (density
< 0 || density
> 7) {
2459 wpa_msg(wpa_s
, MSG_ERROR
,
2460 "ampdu_density: %d out of range. Must be 0-7 or -1.",
2465 htcaps_mask
->a_mpdu_params
|= 0x1C;
2466 htcaps
->a_mpdu_params
&= ~(0x1C);
2467 htcaps
->a_mpdu_params
|= (density
<< 2) & 0x1C;
2473 static int wpa_set_disable_ht40(struct wpa_supplicant
*wpa_s
,
2474 struct ieee80211_ht_capabilities
*htcaps
,
2475 struct ieee80211_ht_capabilities
*htcaps_mask
,
2478 /* Masking these out disables HT40 */
2479 u16 msk
= host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET
|
2480 HT_CAP_INFO_SHORT_GI40MHZ
);
2482 wpa_msg(wpa_s
, MSG_DEBUG
, "set_disable_ht40: %d", disabled
);
2485 htcaps
->ht_capabilities_info
&= ~msk
;
2487 htcaps
->ht_capabilities_info
|= msk
;
2489 htcaps_mask
->ht_capabilities_info
|= msk
;
2495 void wpa_supplicant_apply_ht_overrides(
2496 struct wpa_supplicant
*wpa_s
, struct wpa_ssid
*ssid
,
2497 struct wpa_driver_associate_params
*params
)
2499 struct ieee80211_ht_capabilities
*htcaps
;
2500 struct ieee80211_ht_capabilities
*htcaps_mask
;
2505 params
->disable_ht
= ssid
->disable_ht
;
2506 if (!params
->htcaps
|| !params
->htcaps_mask
)
2509 htcaps
= (struct ieee80211_ht_capabilities
*) params
->htcaps
;
2510 htcaps_mask
= (struct ieee80211_ht_capabilities
*) params
->htcaps_mask
;
2511 wpa_set_htcap_mcs(wpa_s
, htcaps
, htcaps_mask
, ssid
->ht_mcs
);
2512 wpa_disable_max_amsdu(wpa_s
, htcaps
, htcaps_mask
,
2513 ssid
->disable_max_amsdu
);
2514 wpa_set_ampdu_factor(wpa_s
, htcaps
, htcaps_mask
, ssid
->ampdu_factor
);
2515 wpa_set_ampdu_density(wpa_s
, htcaps
, htcaps_mask
, ssid
->ampdu_density
);
2516 wpa_set_disable_ht40(wpa_s
, htcaps
, htcaps_mask
, ssid
->disable_ht40
);
2519 #endif /* CONFIG_HT_OVERRIDES */
2522 static int pcsc_reader_init(struct wpa_supplicant
*wpa_s
)
2527 if (!wpa_s
->conf
->pcsc_reader
)
2530 wpa_s
->scard
= scard_init(SCARD_TRY_BOTH
, wpa_s
->conf
->pcsc_reader
);
2534 if (wpa_s
->conf
->pcsc_pin
&&
2535 scard_set_pin(wpa_s
->scard
, wpa_s
->conf
->pcsc_pin
) < 0) {
2536 scard_deinit(wpa_s
->scard
);
2537 wpa_s
->scard
= NULL
;
2538 wpa_msg(wpa_s
, MSG_ERROR
, "PC/SC PIN validation failed");
2542 len
= sizeof(wpa_s
->imsi
) - 1;
2543 if (scard_get_imsi(wpa_s
->scard
, wpa_s
->imsi
, &len
)) {
2544 scard_deinit(wpa_s
->scard
);
2545 wpa_s
->scard
= NULL
;
2546 wpa_msg(wpa_s
, MSG_ERROR
, "Could not read IMSI");
2549 wpa_s
->imsi
[len
] = '\0';
2551 wpa_s
->mnc_len
= scard_get_mnc_len(wpa_s
->scard
);
2553 wpa_printf(MSG_DEBUG
, "SCARD: IMSI %s (MNC length %d)",
2554 wpa_s
->imsi
, wpa_s
->mnc_len
);
2556 wpa_sm_set_scard_ctx(wpa_s
->wpa
, wpa_s
->scard
);
2557 eapol_sm_register_scard_ctx(wpa_s
->eapol
, wpa_s
->scard
);
2558 #endif /* PCSC_FUNCS */
2564 int wpas_init_ext_pw(struct wpa_supplicant
*wpa_s
)
2568 ext_password_deinit(wpa_s
->ext_pw
);
2569 wpa_s
->ext_pw
= NULL
;
2570 eapol_sm_set_ext_pw_ctx(wpa_s
->eapol
, NULL
);
2572 if (!wpa_s
->conf
->ext_password_backend
)
2575 val
= os_strdup(wpa_s
->conf
->ext_password_backend
);
2578 pos
= os_strchr(val
, ':');
2582 wpa_printf(MSG_DEBUG
, "EXT PW: Initialize backend '%s'", val
);
2584 wpa_s
->ext_pw
= ext_password_init(val
, pos
);
2586 if (wpa_s
->ext_pw
== NULL
) {
2587 wpa_printf(MSG_DEBUG
, "EXT PW: Failed to initialize backend");
2590 eapol_sm_set_ext_pw_ctx(wpa_s
->eapol
, wpa_s
->ext_pw
);
2596 static int wpa_supplicant_init_iface(struct wpa_supplicant
*wpa_s
,
2597 struct wpa_interface
*iface
)
2599 const char *ifname
, *driver
;
2600 struct wpa_driver_capa capa
;
2602 wpa_printf(MSG_DEBUG
, "Initializing interface '%s' conf '%s' driver "
2603 "'%s' ctrl_interface '%s' bridge '%s'", iface
->ifname
,
2604 iface
->confname
? iface
->confname
: "N/A",
2605 iface
->driver
? iface
->driver
: "default",
2606 iface
->ctrl_interface
? iface
->ctrl_interface
: "N/A",
2607 iface
->bridge_ifname
? iface
->bridge_ifname
: "N/A");
2609 if (iface
->confname
) {
2610 #ifdef CONFIG_BACKEND_FILE
2611 wpa_s
->confname
= os_rel2abs_path(iface
->confname
);
2612 if (wpa_s
->confname
== NULL
) {
2613 wpa_printf(MSG_ERROR
, "Failed to get absolute path "
2614 "for configuration file '%s'.",
2618 wpa_printf(MSG_DEBUG
, "Configuration file '%s' -> '%s'",
2619 iface
->confname
, wpa_s
->confname
);
2620 #else /* CONFIG_BACKEND_FILE */
2621 wpa_s
->confname
= os_strdup(iface
->confname
);
2622 #endif /* CONFIG_BACKEND_FILE */
2623 wpa_s
->conf
= wpa_config_read(wpa_s
->confname
);
2624 if (wpa_s
->conf
== NULL
) {
2625 wpa_printf(MSG_ERROR
, "Failed to read or parse "
2626 "configuration '%s'.", wpa_s
->confname
);
2631 * Override ctrl_interface and driver_param if set on command
2634 if (iface
->ctrl_interface
) {
2635 os_free(wpa_s
->conf
->ctrl_interface
);
2636 wpa_s
->conf
->ctrl_interface
=
2637 os_strdup(iface
->ctrl_interface
);
2640 if (iface
->driver_param
) {
2641 os_free(wpa_s
->conf
->driver_param
);
2642 wpa_s
->conf
->driver_param
=
2643 os_strdup(iface
->driver_param
);
2646 wpa_s
->conf
= wpa_config_alloc_empty(iface
->ctrl_interface
,
2647 iface
->driver_param
);
2649 if (wpa_s
->conf
== NULL
) {
2650 wpa_printf(MSG_ERROR
, "\nNo configuration found.");
2654 if (iface
->ifname
== NULL
) {
2655 wpa_printf(MSG_ERROR
, "\nInterface name is required.");
2658 if (os_strlen(iface
->ifname
) >= sizeof(wpa_s
->ifname
)) {
2659 wpa_printf(MSG_ERROR
, "\nToo long interface name '%s'.",
2663 os_strlcpy(wpa_s
->ifname
, iface
->ifname
, sizeof(wpa_s
->ifname
));
2665 if (iface
->bridge_ifname
) {
2666 if (os_strlen(iface
->bridge_ifname
) >=
2667 sizeof(wpa_s
->bridge_ifname
)) {
2668 wpa_printf(MSG_ERROR
, "\nToo long bridge interface "
2669 "name '%s'.", iface
->bridge_ifname
);
2672 os_strlcpy(wpa_s
->bridge_ifname
, iface
->bridge_ifname
,
2673 sizeof(wpa_s
->bridge_ifname
));
2676 /* RSNA Supplicant Key Management - INITIALIZE */
2677 eapol_sm_notify_portEnabled(wpa_s
->eapol
, FALSE
);
2678 eapol_sm_notify_portValid(wpa_s
->eapol
, FALSE
);
2680 /* Initialize driver interface and register driver event handler before
2681 * L2 receive handler so that association events are processed before
2682 * EAPOL-Key packets if both become available for the same select()
2684 driver
= iface
->driver
;
2686 if (wpa_supplicant_set_driver(wpa_s
, driver
) < 0)
2689 wpa_s
->drv_priv
= wpa_drv_init(wpa_s
, wpa_s
->ifname
);
2690 if (wpa_s
->drv_priv
== NULL
) {
2692 pos
= driver
? os_strchr(driver
, ',') : NULL
;
2694 wpa_dbg(wpa_s
, MSG_DEBUG
, "Failed to initialize "
2695 "driver interface - try next driver wrapper");
2699 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to initialize driver "
2703 if (wpa_drv_set_param(wpa_s
, wpa_s
->conf
->driver_param
) < 0) {
2704 wpa_msg(wpa_s
, MSG_ERROR
, "Driver interface rejected "
2705 "driver_param '%s'", wpa_s
->conf
->driver_param
);
2709 ifname
= wpa_drv_get_ifname(wpa_s
);
2710 if (ifname
&& os_strcmp(ifname
, wpa_s
->ifname
) != 0) {
2711 wpa_dbg(wpa_s
, MSG_DEBUG
, "Driver interface replaced "
2712 "interface name with '%s'", ifname
);
2713 os_strlcpy(wpa_s
->ifname
, ifname
, sizeof(wpa_s
->ifname
));
2716 if (wpa_supplicant_init_wpa(wpa_s
) < 0)
2719 wpa_sm_set_ifname(wpa_s
->wpa
, wpa_s
->ifname
,
2720 wpa_s
->bridge_ifname
[0] ? wpa_s
->bridge_ifname
:
2722 wpa_sm_set_fast_reauth(wpa_s
->wpa
, wpa_s
->conf
->fast_reauth
);
2724 if (wpa_s
->conf
->dot11RSNAConfigPMKLifetime
&&
2725 wpa_sm_set_param(wpa_s
->wpa
, RSNA_PMK_LIFETIME
,
2726 wpa_s
->conf
->dot11RSNAConfigPMKLifetime
)) {
2727 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid WPA parameter value for "
2728 "dot11RSNAConfigPMKLifetime");
2732 if (wpa_s
->conf
->dot11RSNAConfigPMKReauthThreshold
&&
2733 wpa_sm_set_param(wpa_s
->wpa
, RSNA_PMK_REAUTH_THRESHOLD
,
2734 wpa_s
->conf
->dot11RSNAConfigPMKReauthThreshold
)) {
2735 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid WPA parameter value for "
2736 "dot11RSNAConfigPMKReauthThreshold");
2740 if (wpa_s
->conf
->dot11RSNAConfigSATimeout
&&
2741 wpa_sm_set_param(wpa_s
->wpa
, RSNA_SA_TIMEOUT
,
2742 wpa_s
->conf
->dot11RSNAConfigSATimeout
)) {
2743 wpa_msg(wpa_s
, MSG_ERROR
, "Invalid WPA parameter value for "
2744 "dot11RSNAConfigSATimeout");
2748 wpa_s
->hw
.modes
= wpa_drv_get_hw_feature_data(wpa_s
,
2749 &wpa_s
->hw
.num_modes
,
2752 if (wpa_drv_get_capa(wpa_s
, &capa
) == 0) {
2753 wpa_s
->drv_capa_known
= 1;
2754 wpa_s
->drv_flags
= capa
.flags
;
2755 wpa_s
->drv_enc
= capa
.enc
;
2756 wpa_s
->probe_resp_offloads
= capa
.probe_resp_offloads
;
2757 wpa_s
->max_scan_ssids
= capa
.max_scan_ssids
;
2758 wpa_s
->max_sched_scan_ssids
= capa
.max_sched_scan_ssids
;
2759 wpa_s
->sched_scan_supported
= capa
.sched_scan_supported
;
2760 wpa_s
->max_match_sets
= capa
.max_match_sets
;
2761 wpa_s
->max_remain_on_chan
= capa
.max_remain_on_chan
;
2762 wpa_s
->max_stations
= capa
.max_stations
;
2764 if (wpa_s
->max_remain_on_chan
== 0)
2765 wpa_s
->max_remain_on_chan
= 1000;
2767 if (wpa_supplicant_driver_init(wpa_s
) < 0)
2771 if (wpa_tdls_init(wpa_s
->wpa
))
2773 #endif /* CONFIG_TDLS */
2775 if (wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1] &&
2776 wpa_drv_set_country(wpa_s
, wpa_s
->conf
->country
)) {
2777 wpa_dbg(wpa_s
, MSG_DEBUG
, "Failed to set country");
2781 if (wpas_wps_init(wpa_s
))
2784 if (wpa_supplicant_init_eapol(wpa_s
) < 0)
2786 wpa_sm_set_eapol(wpa_s
->wpa
, wpa_s
->eapol
);
2788 wpa_s
->ctrl_iface
= wpa_supplicant_ctrl_iface_init(wpa_s
);
2789 if (wpa_s
->ctrl_iface
== NULL
) {
2790 wpa_printf(MSG_ERROR
,
2791 "Failed to initialize control interface '%s'.\n"
2792 "You may have another wpa_supplicant process "
2793 "already running or the file was\n"
2794 "left by an unclean termination of wpa_supplicant "
2795 "in which case you will need\n"
2796 "to manually remove this file before starting "
2797 "wpa_supplicant again.\n",
2798 wpa_s
->conf
->ctrl_interface
);
2802 wpa_s
->gas
= gas_query_init(wpa_s
);
2803 if (wpa_s
->gas
== NULL
) {
2804 wpa_printf(MSG_ERROR
, "Failed to initialize GAS query");
2809 if (wpas_p2p_init(wpa_s
->global
, wpa_s
) < 0) {
2810 wpa_msg(wpa_s
, MSG_ERROR
, "Failed to init P2P");
2813 #endif /* CONFIG_P2P */
2815 if (wpa_bss_init(wpa_s
) < 0)
2818 if (pcsc_reader_init(wpa_s
) < 0)
2821 if (wpas_init_ext_pw(wpa_s
) < 0)
2828 static void wpa_supplicant_deinit_iface(struct wpa_supplicant
*wpa_s
,
2829 int notify
, int terminate
)
2831 if (wpa_s
->drv_priv
) {
2832 wpa_supplicant_deauthenticate(wpa_s
,
2833 WLAN_REASON_DEAUTH_LEAVING
);
2835 wpa_drv_set_countermeasures(wpa_s
, 0);
2836 wpa_clear_keys(wpa_s
, NULL
);
2839 wpa_supplicant_cleanup(wpa_s
);
2842 if (wpa_s
== wpa_s
->global
->p2p_init_wpa_s
&& wpa_s
->global
->p2p
) {
2843 wpa_dbg(wpa_s
, MSG_DEBUG
, "P2P: Disable P2P since removing "
2844 "the management interface is being removed");
2845 wpas_p2p_deinit_global(wpa_s
->global
);
2847 #endif /* CONFIG_P2P */
2849 if (wpa_s
->drv_priv
)
2850 wpa_drv_deinit(wpa_s
);
2853 wpas_notify_iface_removed(wpa_s
);
2856 wpa_msg(wpa_s
, MSG_INFO
, WPA_EVENT_TERMINATING
);
2858 if (wpa_s
->ctrl_iface
) {
2859 wpa_supplicant_ctrl_iface_deinit(wpa_s
->ctrl_iface
);
2860 wpa_s
->ctrl_iface
= NULL
;
2863 if (wpa_s
->conf
!= NULL
) {
2864 wpa_config_free(wpa_s
->conf
);
2871 * wpa_supplicant_add_iface - Add a new network interface
2872 * @global: Pointer to global data from wpa_supplicant_init()
2873 * @iface: Interface configuration options
2874 * Returns: Pointer to the created interface or %NULL on failure
2876 * This function is used to add new network interfaces for %wpa_supplicant.
2877 * This can be called before wpa_supplicant_run() to add interfaces before the
2878 * main event loop has been started. In addition, new interfaces can be added
2879 * dynamically while %wpa_supplicant is already running. This could happen,
2880 * e.g., when a hotplug network adapter is inserted.
2882 struct wpa_supplicant
* wpa_supplicant_add_iface(struct wpa_global
*global
,
2883 struct wpa_interface
*iface
)
2885 struct wpa_supplicant
*wpa_s
;
2886 struct wpa_interface t_iface
;
2887 struct wpa_ssid
*ssid
;
2889 if (global
== NULL
|| iface
== NULL
)
2892 wpa_s
= wpa_supplicant_alloc();
2896 wpa_s
->global
= global
;
2899 if (global
->params
.override_driver
) {
2900 wpa_printf(MSG_DEBUG
, "Override interface parameter: driver "
2902 iface
->driver
, global
->params
.override_driver
);
2903 t_iface
.driver
= global
->params
.override_driver
;
2905 if (global
->params
.override_ctrl_interface
) {
2906 wpa_printf(MSG_DEBUG
, "Override interface parameter: "
2907 "ctrl_interface ('%s' -> '%s')",
2908 iface
->ctrl_interface
,
2909 global
->params
.override_ctrl_interface
);
2910 t_iface
.ctrl_interface
=
2911 global
->params
.override_ctrl_interface
;
2913 if (wpa_supplicant_init_iface(wpa_s
, &t_iface
)) {
2914 wpa_printf(MSG_DEBUG
, "Failed to add interface %s",
2916 wpa_supplicant_deinit_iface(wpa_s
, 0, 0);
2921 /* Notify the control interfaces about new iface */
2922 if (wpas_notify_iface_added(wpa_s
)) {
2923 wpa_supplicant_deinit_iface(wpa_s
, 1, 0);
2928 for (ssid
= wpa_s
->conf
->ssid
; ssid
; ssid
= ssid
->next
)
2929 wpas_notify_network_added(wpa_s
, ssid
);
2931 wpa_s
->next
= global
->ifaces
;
2932 global
->ifaces
= wpa_s
;
2934 wpa_dbg(wpa_s
, MSG_DEBUG
, "Added interface %s", wpa_s
->ifname
);
2935 wpa_supplicant_set_state(wpa_s
, WPA_DISCONNECTED
);
2942 * wpa_supplicant_remove_iface - Remove a network interface
2943 * @global: Pointer to global data from wpa_supplicant_init()
2944 * @wpa_s: Pointer to the network interface to be removed
2945 * Returns: 0 if interface was removed, -1 if interface was not found
2947 * This function can be used to dynamically remove network interfaces from
2948 * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In
2949 * addition, this function is used to remove all remaining interfaces when
2950 * %wpa_supplicant is terminated.
2952 int wpa_supplicant_remove_iface(struct wpa_global
*global
,
2953 struct wpa_supplicant
*wpa_s
,
2956 struct wpa_supplicant
*prev
;
2958 /* Remove interface from the global list of interfaces */
2959 prev
= global
->ifaces
;
2960 if (prev
== wpa_s
) {
2961 global
->ifaces
= wpa_s
->next
;
2963 while (prev
&& prev
->next
!= wpa_s
)
2967 prev
->next
= wpa_s
->next
;
2970 wpa_dbg(wpa_s
, MSG_DEBUG
, "Removing interface %s", wpa_s
->ifname
);
2972 if (global
->p2p_group_formation
== wpa_s
)
2973 global
->p2p_group_formation
= NULL
;
2974 wpa_supplicant_deinit_iface(wpa_s
, 1, terminate
);
2982 * wpa_supplicant_get_eap_mode - Get the current EAP mode
2983 * @wpa_s: Pointer to the network interface
2984 * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found
2986 const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant
*wpa_s
)
2988 const char *eapol_method
;
2990 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s
->key_mgmt
) == 0 &&
2991 wpa_s
->key_mgmt
!= WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
2995 eapol_method
= eapol_sm_get_method_name(wpa_s
->eapol
);
2996 if (eapol_method
== NULL
)
2997 return "UNKNOWN-EAP";
2999 return eapol_method
;
3004 * wpa_supplicant_get_iface - Get a new network interface
3005 * @global: Pointer to global data from wpa_supplicant_init()
3006 * @ifname: Interface name
3007 * Returns: Pointer to the interface or %NULL if not found
3009 struct wpa_supplicant
* wpa_supplicant_get_iface(struct wpa_global
*global
,
3012 struct wpa_supplicant
*wpa_s
;
3014 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
) {
3015 if (os_strcmp(wpa_s
->ifname
, ifname
) == 0)
3022 #ifndef CONFIG_NO_WPA_MSG
3023 static const char * wpa_supplicant_msg_ifname_cb(void *ctx
)
3025 struct wpa_supplicant
*wpa_s
= ctx
;
3028 return wpa_s
->ifname
;
3030 #endif /* CONFIG_NO_WPA_MSG */
3034 * wpa_supplicant_init - Initialize %wpa_supplicant
3035 * @params: Parameters for %wpa_supplicant
3036 * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure
3038 * This function is used to initialize %wpa_supplicant. After successful
3039 * initialization, the returned data pointer can be used to add and remove
3040 * network interfaces, and eventually, to deinitialize %wpa_supplicant.
3042 struct wpa_global
* wpa_supplicant_init(struct wpa_params
*params
)
3044 struct wpa_global
*global
;
3050 #ifdef CONFIG_DRIVER_NDIS
3052 void driver_ndis_init_ops(void);
3053 driver_ndis_init_ops();
3055 #endif /* CONFIG_DRIVER_NDIS */
3057 #ifndef CONFIG_NO_WPA_MSG
3058 wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb
);
3059 #endif /* CONFIG_NO_WPA_MSG */
3061 wpa_debug_open_file(params
->wpa_debug_file_path
);
3062 if (params
->wpa_debug_syslog
)
3063 wpa_debug_open_syslog();
3064 if (params
->wpa_debug_tracing
) {
3065 ret
= wpa_debug_open_linux_tracing();
3067 wpa_printf(MSG_ERROR
,
3068 "Failed to enable trace logging");
3073 ret
= eap_register_methods();
3075 wpa_printf(MSG_ERROR
, "Failed to register EAP methods");
3077 wpa_printf(MSG_ERROR
, "Two or more EAP methods used "
3078 "the same EAP type.");
3082 global
= os_zalloc(sizeof(*global
));
3085 dl_list_init(&global
->p2p_srv_bonjour
);
3086 dl_list_init(&global
->p2p_srv_upnp
);
3087 global
->params
.daemonize
= params
->daemonize
;
3088 global
->params
.wait_for_monitor
= params
->wait_for_monitor
;
3089 global
->params
.dbus_ctrl_interface
= params
->dbus_ctrl_interface
;
3090 if (params
->pid_file
)
3091 global
->params
.pid_file
= os_strdup(params
->pid_file
);
3092 if (params
->ctrl_interface
)
3093 global
->params
.ctrl_interface
=
3094 os_strdup(params
->ctrl_interface
);
3095 if (params
->override_driver
)
3096 global
->params
.override_driver
=
3097 os_strdup(params
->override_driver
);
3098 if (params
->override_ctrl_interface
)
3099 global
->params
.override_ctrl_interface
=
3100 os_strdup(params
->override_ctrl_interface
);
3101 wpa_debug_level
= global
->params
.wpa_debug_level
=
3102 params
->wpa_debug_level
;
3103 wpa_debug_show_keys
= global
->params
.wpa_debug_show_keys
=
3104 params
->wpa_debug_show_keys
;
3105 wpa_debug_timestamp
= global
->params
.wpa_debug_timestamp
=
3106 params
->wpa_debug_timestamp
;
3108 wpa_printf(MSG_DEBUG
, "wpa_supplicant v" VERSION_STR
);
3111 wpa_printf(MSG_ERROR
, "Failed to initialize event loop");
3112 wpa_supplicant_deinit(global
);
3116 random_init(params
->entropy_file
);
3118 global
->ctrl_iface
= wpa_supplicant_global_ctrl_iface_init(global
);
3119 if (global
->ctrl_iface
== NULL
) {
3120 wpa_supplicant_deinit(global
);
3124 if (wpas_notify_supplicant_initialized(global
)) {
3125 wpa_supplicant_deinit(global
);
3129 for (i
= 0; wpa_drivers
[i
]; i
++)
3130 global
->drv_count
++;
3131 if (global
->drv_count
== 0) {
3132 wpa_printf(MSG_ERROR
, "No drivers enabled");
3133 wpa_supplicant_deinit(global
);
3136 global
->drv_priv
= os_zalloc(global
->drv_count
* sizeof(void *));
3137 if (global
->drv_priv
== NULL
) {
3138 wpa_supplicant_deinit(global
);
3147 * wpa_supplicant_run - Run the %wpa_supplicant main event loop
3148 * @global: Pointer to global data from wpa_supplicant_init()
3149 * Returns: 0 after successful event loop run, -1 on failure
3151 * This function starts the main event loop and continues running as long as
3152 * there are any remaining events. In most cases, this function is running as
3153 * long as the %wpa_supplicant process in still in use.
3155 int wpa_supplicant_run(struct wpa_global
*global
)
3157 struct wpa_supplicant
*wpa_s
;
3159 if (global
->params
.daemonize
&&
3160 wpa_supplicant_daemon(global
->params
.pid_file
))
3163 if (global
->params
.wait_for_monitor
) {
3164 for (wpa_s
= global
->ifaces
; wpa_s
; wpa_s
= wpa_s
->next
)
3165 if (wpa_s
->ctrl_iface
)
3166 wpa_supplicant_ctrl_iface_wait(
3170 eloop_register_signal_terminate(wpa_supplicant_terminate
, global
);
3171 eloop_register_signal_reconfig(wpa_supplicant_reconfig
, global
);
3180 * wpa_supplicant_deinit - Deinitialize %wpa_supplicant
3181 * @global: Pointer to global data from wpa_supplicant_init()
3183 * This function is called to deinitialize %wpa_supplicant and to free all
3184 * allocated resources. Remaining network interfaces will also be removed.
3186 void wpa_supplicant_deinit(struct wpa_global
*global
)
3194 wpas_p2p_deinit_global(global
);
3195 #endif /* CONFIG_P2P */
3197 while (global
->ifaces
)
3198 wpa_supplicant_remove_iface(global
, global
->ifaces
, 1);
3200 if (global
->ctrl_iface
)
3201 wpa_supplicant_global_ctrl_iface_deinit(global
->ctrl_iface
);
3203 wpas_notify_supplicant_deinitialized(global
);
3205 eap_peer_unregister_methods();
3207 eap_server_unregister_methods();
3208 #endif /* CONFIG_AP */
3210 for (i
= 0; wpa_drivers
[i
] && global
->drv_priv
; i
++) {
3211 if (!global
->drv_priv
[i
])
3213 wpa_drivers
[i
]->global_deinit(global
->drv_priv
[i
]);
3215 os_free(global
->drv_priv
);
3221 if (global
->params
.pid_file
) {
3222 os_daemonize_terminate(global
->params
.pid_file
);
3223 os_free(global
->params
.pid_file
);
3225 os_free(global
->params
.ctrl_interface
);
3226 os_free(global
->params
.override_driver
);
3227 os_free(global
->params
.override_ctrl_interface
);
3229 os_free(global
->p2p_disallow_freq
);
3232 wpa_debug_close_syslog();
3233 wpa_debug_close_file();
3234 wpa_debug_close_linux_tracing();
3238 void wpa_supplicant_update_config(struct wpa_supplicant
*wpa_s
)
3240 if ((wpa_s
->conf
->changed_parameters
& CFG_CHANGED_COUNTRY
) &&
3241 wpa_s
->conf
->country
[0] && wpa_s
->conf
->country
[1]) {
3243 country
[0] = wpa_s
->conf
->country
[0];
3244 country
[1] = wpa_s
->conf
->country
[1];
3246 if (wpa_drv_set_country(wpa_s
, country
) < 0) {
3247 wpa_printf(MSG_ERROR
, "Failed to set country code "
3252 if (wpa_s
->conf
->changed_parameters
& CFG_CHANGED_EXT_PW_BACKEND
)
3253 wpas_init_ext_pw(wpa_s
);
3256 wpas_wps_update_config(wpa_s
);
3257 #endif /* CONFIG_WPS */
3260 wpas_p2p_update_config(wpa_s
);
3261 #endif /* CONFIG_P2P */
3263 wpa_s
->conf
->changed_parameters
= 0;
3267 static void add_freq(int *freqs
, int *num_freqs
, int freq
)
3271 for (i
= 0; i
< *num_freqs
; i
++) {
3272 if (freqs
[i
] == freq
)
3276 freqs
[*num_freqs
] = freq
;
3281 static int * get_bss_freqs_in_ess(struct wpa_supplicant
*wpa_s
)
3283 struct wpa_bss
*bss
, *cbss
;
3284 const int max_freqs
= 10;
3288 freqs
= os_zalloc(sizeof(int) * (max_freqs
+ 1));
3292 cbss
= wpa_s
->current_bss
;
3294 dl_list_for_each(bss
, &wpa_s
->bss
, struct wpa_bss
, list
) {
3297 if (bss
->ssid_len
== cbss
->ssid_len
&&
3298 os_memcmp(bss
->ssid
, cbss
->ssid
, bss
->ssid_len
) == 0 &&
3299 wpa_blacklist_get(wpa_s
, bss
->bssid
) == NULL
) {
3300 add_freq(freqs
, &num_freqs
, bss
->freq
);
3301 if (num_freqs
== max_freqs
)
3306 if (num_freqs
== 0) {
3315 void wpas_connection_failed(struct wpa_supplicant
*wpa_s
, const u8
*bssid
)
3322 * Remove possible authentication timeout since the connection failed.
3324 eloop_cancel_timeout(wpa_supplicant_timeout
, wpa_s
, NULL
);
3327 * Add the failed BSSID into the blacklist and speed up next scan
3328 * attempt if there could be other APs that could accept association.
3329 * The current blacklist count indicates how many times we have tried
3330 * connecting to this AP and multiple attempts mean that other APs are
3331 * either not available or has already been tried, so that we can start
3332 * increasing the delay here to avoid constant scanning.
3334 count
= wpa_blacklist_add(wpa_s
, bssid
);
3335 if (count
== 1 && wpa_s
->current_bss
) {
3337 * This BSS was not in the blacklist before. If there is
3338 * another BSS available for the same ESS, we should try that
3339 * next. Otherwise, we may as well try this one once more
3340 * before allowing other, likely worse, ESSes to be considered.
3342 freqs
= get_bss_freqs_in_ess(wpa_s
);
3344 wpa_dbg(wpa_s
, MSG_DEBUG
, "Another BSS in this ESS "
3345 "has been seen; try it next");
3346 wpa_blacklist_add(wpa_s
, bssid
);
3348 * On the next scan, go through only the known channels
3349 * used in this ESS based on previous scans to speed up
3350 * common load balancing use case.
3352 os_free(wpa_s
->next_scan_freqs
);
3353 wpa_s
->next_scan_freqs
= freqs
;
3372 * TODO: if more than one possible AP is available in scan results,
3373 * could try the other ones before requesting a new scan.
3375 wpa_supplicant_req_scan(wpa_s
, timeout
/ 1000,
3376 1000 * (timeout
% 1000));
3380 int wpas_driver_bss_selection(struct wpa_supplicant
*wpa_s
)
3382 return wpa_s
->conf
->ap_scan
== 2 ||
3383 (wpa_s
->drv_flags
& WPA_DRIVER_FLAGS_BSS_SELECTION
);
3387 #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW)
3388 int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant
*wpa_s
,
3389 struct wpa_ssid
*ssid
,
3393 #ifdef IEEE8021X_EAPOL
3394 struct eap_peer_config
*eap
= &ssid
->eap
;
3396 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: response handle field=%s", field
);
3397 wpa_hexdump_ascii_key(MSG_DEBUG
, "CTRL_IFACE: response value",
3398 (const u8
*) value
, os_strlen(value
));
3400 switch (wpa_supplicant_ctrl_req_from_string(field
)) {
3401 case WPA_CTRL_REQ_EAP_IDENTITY
:
3402 os_free(eap
->identity
);
3403 eap
->identity
= (u8
*) os_strdup(value
);
3404 eap
->identity_len
= os_strlen(value
);
3405 eap
->pending_req_identity
= 0;
3406 if (ssid
== wpa_s
->current_ssid
)
3407 wpa_s
->reassociate
= 1;
3409 case WPA_CTRL_REQ_EAP_PASSWORD
:
3410 os_free(eap
->password
);
3411 eap
->password
= (u8
*) os_strdup(value
);
3412 eap
->password_len
= os_strlen(value
);
3413 eap
->pending_req_password
= 0;
3414 if (ssid
== wpa_s
->current_ssid
)
3415 wpa_s
->reassociate
= 1;
3417 case WPA_CTRL_REQ_EAP_NEW_PASSWORD
:
3418 os_free(eap
->new_password
);
3419 eap
->new_password
= (u8
*) os_strdup(value
);
3420 eap
->new_password_len
= os_strlen(value
);
3421 eap
->pending_req_new_password
= 0;
3422 if (ssid
== wpa_s
->current_ssid
)
3423 wpa_s
->reassociate
= 1;
3425 case WPA_CTRL_REQ_EAP_PIN
:
3427 eap
->pin
= os_strdup(value
);
3428 eap
->pending_req_pin
= 0;
3429 if (ssid
== wpa_s
->current_ssid
)
3430 wpa_s
->reassociate
= 1;
3432 case WPA_CTRL_REQ_EAP_OTP
:
3434 eap
->otp
= (u8
*) os_strdup(value
);
3435 eap
->otp_len
= os_strlen(value
);
3436 os_free(eap
->pending_req_otp
);
3437 eap
->pending_req_otp
= NULL
;
3438 eap
->pending_req_otp_len
= 0;
3440 case WPA_CTRL_REQ_EAP_PASSPHRASE
:
3441 os_free(eap
->private_key_passwd
);
3442 eap
->private_key_passwd
= (u8
*) os_strdup(value
);
3443 eap
->pending_req_passphrase
= 0;
3444 if (ssid
== wpa_s
->current_ssid
)
3445 wpa_s
->reassociate
= 1;
3448 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Unknown field '%s'", field
);
3453 #else /* IEEE8021X_EAPOL */
3454 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: IEEE 802.1X not included");
3456 #endif /* IEEE8021X_EAPOL */
3458 #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */
3461 int wpas_network_disabled(struct wpa_supplicant
*wpa_s
, struct wpa_ssid
*ssid
)
3464 unsigned int drv_enc
;
3472 if (wpa_s
&& wpa_s
->drv_capa_known
)
3473 drv_enc
= wpa_s
->drv_enc
;
3475 drv_enc
= (unsigned int) -1;
3477 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
3478 size_t len
= ssid
->wep_key_len
[i
];
3481 if (len
== 5 && (drv_enc
& WPA_DRIVER_CAPA_ENC_WEP40
))
3483 if (len
== 13 && (drv_enc
& WPA_DRIVER_CAPA_ENC_WEP104
))
3485 if (len
== 16 && (drv_enc
& WPA_DRIVER_CAPA_ENC_WEP128
))
3487 return 1; /* invalid WEP key */
3490 if (wpa_key_mgmt_wpa_psk(ssid
->key_mgmt
) && !ssid
->psk_set
&&
3498 int wpas_is_p2p_prioritized(struct wpa_supplicant
*wpa_s
)
3500 if (wpa_s
->global
->conc_pref
== WPA_CONC_PREF_P2P
)
3502 if (wpa_s
->global
->conc_pref
== WPA_CONC_PREF_STA
)