3 * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
8 * This file implements functions for registering and unregistering
9 * %wpa_supplicant interfaces. In addition, this file contains number of
10 * functions for managing network connections.
16 #include "crypto/random.h"
17 #include "crypto/sha1.h"
18 #include "eapol_supp/eapol_supp_sm.h"
19 #include "eap_peer/eap.h"
20 #include "eap_peer/eap_proxy.h"
21 #include "eap_server/eap_methods.h"
22 #include "rsn_supp/wpa.h"
25 #include "utils/ext_password.h"
26 #include "l2_packet/l2_packet.h"
27 #include "wpa_supplicant_i.h"
29 #include "ctrl_iface.h"
30 #include "pcsc_funcs.h"
31 #include "common/version.h"
32 #include "rsn_supp/preauth.h"
33 #include "rsn_supp/pmksa_cache.h"
34 #include "common/wpa_ctrl.h"
35 #include "common/ieee802_11_defs.h"
36 #include "common/hw_features_common.h"
39 #include "blacklist.h"
40 #include "wpas_glue.h"
41 #include "wps_supplicant.h"
44 #include "gas_query.h"
46 #include "p2p_supplicant.h"
47 #include "wifi_display.h"
53 #include "offchannel.h"
54 #include "hs20_supplicant.h"
59 const char *const wpa_supplicant_version =
60 "wpa_supplicant v" VERSION_STR "\n"
61 "Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi> and contributors";
63 const char *const wpa_supplicant_license =
64 "This software may be distributed under the terms of the BSD license.\n"
65 "See README for more details.\n"
66 #ifdef EAP_TLS_OPENSSL
67 "\nThis product includes software developed by the OpenSSL Project\n"
68 "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n"
69 #endif /* EAP_TLS_OPENSSL */
72 #ifndef CONFIG_NO_STDOUT_DEBUG
73 /* Long text divided into parts in order to fit in C89 strings size limits. */
74 const char *const wpa_supplicant_full_license1 =
76 const char *const wpa_supplicant_full_license2 =
77 "This software may be distributed under the terms of the BSD license.\n"
79 "Redistribution and use in source and binary forms, with or without\n"
80 "modification, are permitted provided that the following conditions are\n"
83 const char *const wpa_supplicant_full_license3 =
84 "1. Redistributions of source code must retain the above copyright\n"
85 " notice, this list of conditions and the following disclaimer.\n"
87 "2. Redistributions in binary form must reproduce the above copyright\n"
88 " notice, this list of conditions and the following disclaimer in the\n"
89 " documentation and/or other materials provided with the distribution.\n"
91 const char *const wpa_supplicant_full_license4 =
92 "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n"
93 " names of its contributors may be used to endorse or promote products\n"
94 " derived from this software without specific prior written permission.\n"
96 "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"
97 "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"
98 "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"
99 "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n";
100 const char *const wpa_supplicant_full_license5 =
101 "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"
102 "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"
103 "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"
104 "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"
105 "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
106 "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"
107 "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
109 #endif /* CONFIG_NO_STDOUT_DEBUG */
111 /* Configure default/group WEP keys for static WEP */
112 int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
116 for (i = 0; i < NUM_WEP_KEYS; i++) {
117 if (ssid->wep_key_len[i] == 0)
121 wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL,
122 i, i == ssid->wep_tx_keyidx, NULL, 0,
123 ssid->wep_key[i], ssid->wep_key_len[i]);
130 int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s,
131 struct wpa_ssid *ssid)
139 /* IBSS/WPA-None uses only one key (Group) for both receiving and
140 * sending unicast and multicast packets. */
142 if (ssid->mode != WPAS_MODE_IBSS) {
143 wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not "
144 "IBSS/ad-hoc) for WPA-None", ssid->mode);
148 if (!ssid->psk_set) {
149 wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for "
154 switch (wpa_s->group_cipher) {
155 case WPA_CIPHER_CCMP:
156 os_memcpy(key, ssid->psk, 16);
160 case WPA_CIPHER_GCMP:
161 os_memcpy(key, ssid->psk, 16);
165 case WPA_CIPHER_TKIP:
166 /* WPA-None uses the same Michael MIC key for both TX and RX */
167 os_memcpy(key, ssid->psk, 16 + 8);
168 os_memcpy(key + 16 + 8, ssid->psk + 16, 8);
173 wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for "
174 "WPA-None", wpa_s->group_cipher);
178 /* TODO: should actually remember the previously used seq#, both for TX
179 * and RX from each STA.. */
181 ret = wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen);
182 os_memset(key, 0, sizeof(key));
187 static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx)
189 struct wpa_supplicant *wpa_s = eloop_ctx;
190 const u8 *bssid = wpa_s->bssid;
191 if (is_zero_ether_addr(bssid))
192 bssid = wpa_s->pending_bssid;
193 wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.",
195 wpa_blacklist_add(wpa_s, bssid);
196 wpa_sm_notify_disassoc(wpa_s->wpa);
197 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
198 wpa_s->reassociate = 1;
201 * If we timed out, the AP or the local radio may be busy.
202 * So, wait a second until scanning again.
204 wpa_supplicant_req_scan(wpa_s, 1, 0);
209 * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication
210 * @wpa_s: Pointer to wpa_supplicant data
211 * @sec: Number of seconds after which to time out authentication
212 * @usec: Number of microseconds after which to time out authentication
214 * This function is used to schedule a timeout for the current authentication
217 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
220 if (wpa_s->conf->ap_scan == 0 &&
221 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED))
224 wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec "
225 "%d usec", sec, usec);
226 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
227 eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL);
232 * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout
233 * @wpa_s: Pointer to wpa_supplicant data
235 * This function is used to cancel authentication timeout scheduled with
236 * wpa_supplicant_req_auth_timeout() and it is called when authentication has
239 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s)
241 wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout");
242 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
243 wpa_blacklist_del(wpa_s, wpa_s->bssid);
248 * wpa_supplicant_initiate_eapol - Configure EAPOL state machine
249 * @wpa_s: Pointer to wpa_supplicant data
251 * This function is used to configure EAPOL state machine based on the selected
252 * authentication mode.
254 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s)
256 #ifdef IEEE8021X_EAPOL
257 struct eapol_config eapol_conf;
258 struct wpa_ssid *ssid = wpa_s->current_ssid;
260 #ifdef CONFIG_IBSS_RSN
261 if (ssid->mode == WPAS_MODE_IBSS &&
262 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
263 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
265 * RSN IBSS authentication is per-STA and we can disable the
266 * per-BSSID EAPOL authentication.
268 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
269 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
270 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
273 #endif /* CONFIG_IBSS_RSN */
275 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
276 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
278 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
279 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
280 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
282 eapol_sm_notify_portControl(wpa_s->eapol, Auto);
284 os_memset(&eapol_conf, 0, sizeof(eapol_conf));
285 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
286 eapol_conf.accept_802_1x_keys = 1;
287 eapol_conf.required_keys = 0;
288 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) {
289 eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST;
291 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) {
292 eapol_conf.required_keys |=
293 EAPOL_REQUIRE_KEY_BROADCAST;
296 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)
297 eapol_conf.required_keys = 0;
299 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
300 eapol_conf.workaround = ssid->eap_workaround;
301 eapol_conf.eap_disabled =
302 !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
303 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
304 wpa_s->key_mgmt != WPA_KEY_MGMT_WPS;
305 eapol_conf.external_sim = wpa_s->conf->external_sim;
308 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
309 eapol_conf.wps |= EAPOL_LOCAL_WPS_IN_USE;
310 if (wpa_s->current_bss) {
312 ie = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
317 EAPOL_PEER_IS_WPS20_AP;
322 #endif /* CONFIG_WPS */
324 eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
326 ieee802_1x_alloc_kay_sm(wpa_s, ssid);
327 #endif /* IEEE8021X_EAPOL */
332 * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode
333 * @wpa_s: Pointer to wpa_supplicant data
334 * @ssid: Configuration data for the network
336 * This function is used to configure WPA state machine and related parameters
337 * to a mode where WPA is not enabled. This is called as part of the
338 * authentication configuration when the selected network does not use WPA.
340 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
341 struct wpa_ssid *ssid)
345 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
346 wpa_s->key_mgmt = WPA_KEY_MGMT_WPS;
347 else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)
348 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
350 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
351 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
352 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
353 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
354 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
355 wpa_s->group_cipher = WPA_CIPHER_NONE;
356 wpa_s->mgmt_group_cipher = 0;
358 for (i = 0; i < NUM_WEP_KEYS; i++) {
359 if (ssid->wep_key_len[i] > 5) {
360 wpa_s->pairwise_cipher = WPA_CIPHER_WEP104;
361 wpa_s->group_cipher = WPA_CIPHER_WEP104;
363 } else if (ssid->wep_key_len[i] > 0) {
364 wpa_s->pairwise_cipher = WPA_CIPHER_WEP40;
365 wpa_s->group_cipher = WPA_CIPHER_WEP40;
370 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0);
371 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
372 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
373 wpa_s->pairwise_cipher);
374 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
375 #ifdef CONFIG_IEEE80211W
376 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
377 wpa_s->mgmt_group_cipher);
378 #endif /* CONFIG_IEEE80211W */
380 pmksa_cache_clear_current(wpa_s->wpa);
384 void free_hw_features(struct wpa_supplicant *wpa_s)
387 if (wpa_s->hw.modes == NULL)
390 for (i = 0; i < wpa_s->hw.num_modes; i++) {
391 os_free(wpa_s->hw.modes[i].channels);
392 os_free(wpa_s->hw.modes[i].rates);
395 os_free(wpa_s->hw.modes);
396 wpa_s->hw.modes = NULL;
400 static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
404 bgscan_deinit(wpa_s);
405 autoscan_deinit(wpa_s);
406 scard_deinit(wpa_s->scard);
408 wpa_sm_set_scard_ctx(wpa_s->wpa, NULL);
409 eapol_sm_register_scard_ctx(wpa_s->eapol, NULL);
410 l2_packet_deinit(wpa_s->l2);
413 l2_packet_deinit(wpa_s->l2_br);
416 #ifdef CONFIG_TESTING_OPTIONS
417 l2_packet_deinit(wpa_s->l2_test);
418 wpa_s->l2_test = NULL;
419 #endif /* CONFIG_TESTING_OPTIONS */
421 if (wpa_s->conf != NULL) {
422 struct wpa_ssid *ssid;
423 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
424 wpas_notify_network_removed(wpa_s, ssid);
427 os_free(wpa_s->confname);
428 wpa_s->confname = NULL;
430 os_free(wpa_s->confanother);
431 wpa_s->confanother = NULL;
433 wpa_sm_set_eapol(wpa_s->wpa, NULL);
434 eapol_sm_deinit(wpa_s->eapol);
437 rsn_preauth_deinit(wpa_s->wpa);
440 wpa_tdls_deinit(wpa_s->wpa);
441 #endif /* CONFIG_TDLS */
443 wmm_ac_clear_saved_tspecs(wpa_s);
444 pmksa_candidate_free(wpa_s->wpa);
445 wpa_sm_deinit(wpa_s->wpa);
447 wpa_blacklist_clear(wpa_s);
449 wpa_bss_deinit(wpa_s);
451 wpa_supplicant_cancel_delayed_sched_scan(wpa_s);
452 wpa_supplicant_cancel_scan(wpa_s);
453 wpa_supplicant_cancel_auth_timeout(wpa_s);
454 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL);
455 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
456 eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report,
458 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
460 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
462 wpas_wps_deinit(wpa_s);
464 wpabuf_free(wpa_s->pending_eapol_rx);
465 wpa_s->pending_eapol_rx = NULL;
467 #ifdef CONFIG_IBSS_RSN
468 ibss_rsn_deinit(wpa_s->ibss_rsn);
469 wpa_s->ibss_rsn = NULL;
470 #endif /* CONFIG_IBSS_RSN */
475 wpa_supplicant_ap_deinit(wpa_s);
476 #endif /* CONFIG_AP */
478 wpas_p2p_deinit(wpa_s);
480 #ifdef CONFIG_OFFCHANNEL
481 offchannel_deinit(wpa_s);
482 #endif /* CONFIG_OFFCHANNEL */
484 wpa_supplicant_cancel_sched_scan(wpa_s);
486 os_free(wpa_s->next_scan_freqs);
487 wpa_s->next_scan_freqs = NULL;
489 os_free(wpa_s->manual_scan_freqs);
490 wpa_s->manual_scan_freqs = NULL;
492 os_free(wpa_s->manual_sched_scan_freqs);
493 wpa_s->manual_sched_scan_freqs = NULL;
495 wpas_mac_addr_rand_scan_clear(wpa_s, MAC_ADDR_RAND_ALL);
498 * Need to remove any pending gas-query radio work before the
499 * gas_query_deinit() call because gas_query::work has not yet been set
500 * for works that have not been started. gas_query_free() will be unable
501 * to cancel such pending radio works and once the pending gas-query
502 * radio work eventually gets removed, the deinit notification call to
503 * gas_query_start_cb() would result in dereferencing freed memory.
506 radio_remove_works(wpa_s, "gas-query", 0);
507 gas_query_deinit(wpa_s->gas);
510 free_hw_features(wpa_s);
512 ieee802_1x_dealloc_kay_sm(wpa_s);
514 os_free(wpa_s->bssid_filter);
515 wpa_s->bssid_filter = NULL;
517 os_free(wpa_s->disallow_aps_bssid);
518 wpa_s->disallow_aps_bssid = NULL;
519 os_free(wpa_s->disallow_aps_ssid);
520 wpa_s->disallow_aps_ssid = NULL;
522 wnm_bss_keep_alive_deinit(wpa_s);
524 wnm_deallocate_memory(wpa_s);
525 #endif /* CONFIG_WNM */
527 ext_password_deinit(wpa_s->ext_pw);
528 wpa_s->ext_pw = NULL;
530 wpabuf_free(wpa_s->last_gas_resp);
531 wpa_s->last_gas_resp = NULL;
532 wpabuf_free(wpa_s->prev_gas_resp);
533 wpa_s->prev_gas_resp = NULL;
535 os_free(wpa_s->last_scan_res);
536 wpa_s->last_scan_res = NULL;
540 #endif /* CONFIG_HS20 */
542 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) {
543 wpabuf_free(wpa_s->vendor_elem[i]);
544 wpa_s->vendor_elem[i] = NULL;
547 wmm_ac_notify_disassoc(wpa_s);
552 * wpa_clear_keys - Clear keys configured for the driver
553 * @wpa_s: Pointer to wpa_supplicant data
554 * @addr: Previously used BSSID or %NULL if not available
556 * This function clears the encryption keys that has been previously configured
559 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr)
563 #ifdef CONFIG_IEEE80211W
565 #else /* CONFIG_IEEE80211W */
567 #endif /* CONFIG_IEEE80211W */
569 /* MLME-DELETEKEYS.request */
570 for (i = 0; i < max; i++) {
571 if (wpa_s->keys_cleared & BIT(i))
573 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, i, 0, NULL, 0,
576 if (!(wpa_s->keys_cleared & BIT(0)) && addr &&
577 !is_zero_ether_addr(addr)) {
578 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL,
580 /* MLME-SETPROTECTION.request(None) */
581 wpa_drv_mlme_setprotection(
583 MLME_SETPROTECTION_PROTECT_TYPE_NONE,
584 MLME_SETPROTECTION_KEY_TYPE_PAIRWISE);
586 wpa_s->keys_cleared = (u32) -1;
591 * wpa_supplicant_state_txt - Get the connection state name as a text string
592 * @state: State (wpa_state; WPA_*)
593 * Returns: The state name as a printable text string
595 const char * wpa_supplicant_state_txt(enum wpa_states state)
598 case WPA_DISCONNECTED:
599 return "DISCONNECTED";
602 case WPA_INTERFACE_DISABLED:
603 return "INTERFACE_DISABLED";
606 case WPA_AUTHENTICATING:
607 return "AUTHENTICATING";
608 case WPA_ASSOCIATING:
609 return "ASSOCIATING";
612 case WPA_4WAY_HANDSHAKE:
613 return "4WAY_HANDSHAKE";
614 case WPA_GROUP_HANDSHAKE:
615 return "GROUP_HANDSHAKE";
626 static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s)
630 if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan)
631 name = wpa_s->current_ssid->bgscan;
633 name = wpa_s->conf->bgscan;
634 if (name == NULL || name[0] == '\0')
636 if (wpas_driver_bss_selection(wpa_s))
638 if (wpa_s->current_ssid == wpa_s->bgscan_ssid)
641 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
643 #endif /* CONFIG_P2P */
645 bgscan_deinit(wpa_s);
646 if (wpa_s->current_ssid) {
647 if (bgscan_init(wpa_s, wpa_s->current_ssid, name)) {
648 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
651 * Live without bgscan; it is only used as a roaming
652 * optimization, so the initial connection is not
656 struct wpa_scan_results *scan_res;
657 wpa_s->bgscan_ssid = wpa_s->current_ssid;
658 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL,
661 bgscan_notify_scan(wpa_s, scan_res);
662 wpa_scan_results_free(scan_res);
666 wpa_s->bgscan_ssid = NULL;
670 static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s)
672 if (wpa_s->bgscan_ssid != NULL) {
673 bgscan_deinit(wpa_s);
674 wpa_s->bgscan_ssid = NULL;
678 #endif /* CONFIG_BGSCAN */
681 static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s)
683 if (autoscan_init(wpa_s, 0))
684 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan");
688 static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s)
690 autoscan_deinit(wpa_s);
694 void wpa_supplicant_reinit_autoscan(struct wpa_supplicant *wpa_s)
696 if (wpa_s->wpa_state == WPA_DISCONNECTED ||
697 wpa_s->wpa_state == WPA_SCANNING) {
698 autoscan_deinit(wpa_s);
699 wpa_supplicant_start_autoscan(wpa_s);
705 * wpa_supplicant_set_state - Set current connection state
706 * @wpa_s: Pointer to wpa_supplicant data
707 * @state: The new connection state
709 * This function is called whenever the connection state changes, e.g.,
710 * association is completed for WPA/WPA2 4-Way Handshake is started.
712 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
713 enum wpa_states state)
715 enum wpa_states old_state = wpa_s->wpa_state;
717 wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s",
718 wpa_supplicant_state_txt(wpa_s->wpa_state),
719 wpa_supplicant_state_txt(state));
721 if (state == WPA_INTERFACE_DISABLED) {
722 /* Assure normal scan when interface is restored */
723 wpa_s->normal_scans = 0;
726 if (state == WPA_COMPLETED) {
727 wpas_connect_work_done(wpa_s);
728 /* Reinitialize normal_scan counter */
729 wpa_s->normal_scans = 0;
734 * P2PS client has to reply to Probe Request frames received on the
735 * group operating channel. Enable Probe Request frame reporting for
736 * P2P connected client in case p2p_cli_probe configuration property is
739 if (wpa_s->conf->p2p_cli_probe && wpa_s->current_ssid &&
740 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
741 wpa_s->current_ssid->p2p_group) {
742 if (state == WPA_COMPLETED && !wpa_s->p2p_cli_probe) {
743 wpa_dbg(wpa_s, MSG_DEBUG,
744 "P2P: Enable CLI Probe Request RX reporting");
745 wpa_s->p2p_cli_probe =
746 wpa_drv_probe_req_report(wpa_s, 1) >= 0;
747 } else if (state != WPA_COMPLETED && wpa_s->p2p_cli_probe) {
748 wpa_dbg(wpa_s, MSG_DEBUG,
749 "P2P: Disable CLI Probe Request RX reporting");
750 wpa_s->p2p_cli_probe = 0;
751 wpa_drv_probe_req_report(wpa_s, 0);
754 #endif /* CONFIG_P2P */
756 if (state != WPA_SCANNING)
757 wpa_supplicant_notify_scanning(wpa_s, 0);
759 if (state == WPA_COMPLETED && wpa_s->new_connection) {
760 struct wpa_ssid *ssid = wpa_s->current_ssid;
761 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
762 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to "
763 MACSTR " completed [id=%d id_str=%s]",
764 MAC2STR(wpa_s->bssid),
765 ssid ? ssid->id : -1,
766 ssid && ssid->id_str ? ssid->id_str : "");
767 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
768 wpas_clear_temp_disabled(wpa_s, ssid, 1);
769 wpa_blacklist_clear(wpa_s);
770 wpa_s->extra_blacklist_count = 0;
771 wpa_s->new_connection = 0;
772 wpa_drv_set_operstate(wpa_s, 1);
773 #ifndef IEEE8021X_EAPOL
774 wpa_drv_set_supp_port(wpa_s, 1);
775 #endif /* IEEE8021X_EAPOL */
776 wpa_s->after_wps = 0;
777 wpa_s->known_wps_freq = 0;
778 wpas_p2p_completed(wpa_s);
780 sme_sched_obss_scan(wpa_s, 1);
781 } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
782 state == WPA_ASSOCIATED) {
783 wpa_s->new_connection = 1;
784 wpa_drv_set_operstate(wpa_s, 0);
785 #ifndef IEEE8021X_EAPOL
786 wpa_drv_set_supp_port(wpa_s, 0);
787 #endif /* IEEE8021X_EAPOL */
788 sme_sched_obss_scan(wpa_s, 0);
790 wpa_s->wpa_state = state;
793 if (state == WPA_COMPLETED)
794 wpa_supplicant_start_bgscan(wpa_s);
795 else if (state < WPA_ASSOCIATED)
796 wpa_supplicant_stop_bgscan(wpa_s);
797 #endif /* CONFIG_BGSCAN */
799 if (state == WPA_AUTHENTICATING)
800 wpa_supplicant_stop_autoscan(wpa_s);
802 if (state == WPA_DISCONNECTED || state == WPA_INACTIVE)
803 wpa_supplicant_start_autoscan(wpa_s);
805 if (old_state >= WPA_ASSOCIATED && wpa_s->wpa_state < WPA_ASSOCIATED)
806 wmm_ac_notify_disassoc(wpa_s);
808 if (wpa_s->wpa_state != old_state) {
809 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
812 * Notify the P2P Device interface about a state change in one
815 wpas_p2p_indicate_state_change(wpa_s);
817 if (wpa_s->wpa_state == WPA_COMPLETED ||
818 old_state == WPA_COMPLETED)
819 wpas_notify_auth_changed(wpa_s);
824 void wpa_supplicant_terminate_proc(struct wpa_global *global)
828 struct wpa_supplicant *wpa_s = global->ifaces;
830 struct wpa_supplicant *next = wpa_s->next;
831 if (wpas_wps_terminate_pending(wpa_s) == 1)
834 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE ||
835 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group))
836 wpas_p2p_disconnect(wpa_s);
837 #endif /* CONFIG_P2P */
840 #endif /* CONFIG_WPS */
847 static void wpa_supplicant_terminate(int sig, void *signal_ctx)
849 struct wpa_global *global = signal_ctx;
850 wpa_supplicant_terminate_proc(global);
854 void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s)
856 enum wpa_states old_state = wpa_s->wpa_state;
858 wpa_s->pairwise_cipher = 0;
859 wpa_s->group_cipher = 0;
860 wpa_s->mgmt_group_cipher = 0;
862 if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED)
863 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
865 if (wpa_s->wpa_state != old_state)
866 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
871 * wpa_supplicant_reload_configuration - Reload configuration data
872 * @wpa_s: Pointer to wpa_supplicant data
873 * Returns: 0 on success or -1 if configuration parsing failed
875 * This function can be used to request that the configuration data is reloaded
876 * (e.g., after configuration file change). This function is reloading
877 * configuration only for one interface, so this may need to be called multiple
878 * times if %wpa_supplicant is controlling multiple interfaces and all
879 * interfaces need reconfiguration.
881 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s)
883 struct wpa_config *conf;
887 if (wpa_s->confname == NULL)
889 conf = wpa_config_read(wpa_s->confname, NULL);
891 wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration "
892 "file '%s' - exiting", wpa_s->confname);
895 wpa_config_read(wpa_s->confanother, conf);
897 conf->changed_parameters = (unsigned int) -1;
899 reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface
900 || (conf->ctrl_interface && wpa_s->conf->ctrl_interface &&
901 os_strcmp(conf->ctrl_interface,
902 wpa_s->conf->ctrl_interface) != 0);
904 if (reconf_ctrl && wpa_s->ctrl_iface) {
905 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
906 wpa_s->ctrl_iface = NULL;
909 eapol_sm_invalidate_cached_session(wpa_s->eapol);
910 if (wpa_s->current_ssid) {
911 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
912 wpa_s->own_disconnect_req = 1;
913 wpa_supplicant_deauthenticate(wpa_s,
914 WLAN_REASON_DEAUTH_LEAVING);
918 * TODO: should notify EAPOL SM about changes in opensc_engine_path,
919 * pkcs11_engine_path, pkcs11_module_path, openssl_ciphers.
921 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
923 * Clear forced success to clear EAP state for next
926 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
928 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
929 wpa_sm_set_config(wpa_s->wpa, NULL);
930 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
931 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
932 rsn_preauth_deinit(wpa_s->wpa);
934 old_ap_scan = wpa_s->conf->ap_scan;
935 wpa_config_free(wpa_s->conf);
937 if (old_ap_scan != wpa_s->conf->ap_scan)
938 wpas_notify_ap_scan_changed(wpa_s);
941 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
943 wpa_supplicant_update_config(wpa_s);
945 wpa_supplicant_clear_status(wpa_s);
946 if (wpa_supplicant_enabled_networks(wpa_s)) {
947 wpa_s->reassociate = 1;
948 wpa_supplicant_req_scan(wpa_s, 0, 0);
950 wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed");
955 static void wpa_supplicant_reconfig(int sig, void *signal_ctx)
957 struct wpa_global *global = signal_ctx;
958 struct wpa_supplicant *wpa_s;
959 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
960 wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring",
962 if (wpa_supplicant_reload_configuration(wpa_s) < 0) {
963 wpa_supplicant_terminate_proc(global);
969 static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s,
970 struct wpa_ssid *ssid,
971 struct wpa_ie_data *ie)
973 int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie);
976 wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE "
977 "from association info");
982 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set "
984 if (!(ie->group_cipher & ssid->group_cipher)) {
985 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group "
986 "cipher 0x%x (mask 0x%x) - reject",
987 ie->group_cipher, ssid->group_cipher);
990 if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) {
991 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise "
992 "cipher 0x%x (mask 0x%x) - reject",
993 ie->pairwise_cipher, ssid->pairwise_cipher);
996 if (!(ie->key_mgmt & ssid->key_mgmt)) {
997 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key "
998 "management 0x%x (mask 0x%x) - reject",
999 ie->key_mgmt, ssid->key_mgmt);
1003 #ifdef CONFIG_IEEE80211W
1004 if (!(ie->capabilities & WPA_CAPABILITY_MFPC) &&
1005 wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) {
1006 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP "
1007 "that does not support management frame protection - "
1011 #endif /* CONFIG_IEEE80211W */
1018 * wpa_supplicant_set_suites - Set authentication and encryption parameters
1019 * @wpa_s: Pointer to wpa_supplicant data
1020 * @bss: Scan results for the selected BSS, or %NULL if not available
1021 * @ssid: Configuration data for the selected network
1022 * @wpa_ie: Buffer for the WPA/RSN IE
1023 * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the
1024 * used buffer length in case the functions returns success.
1025 * Returns: 0 on success or -1 on failure
1027 * This function is used to configure authentication and encryption parameters
1028 * based on the network configuration and scan result for the selected BSS (if
1031 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
1032 struct wpa_bss *bss, struct wpa_ssid *ssid,
1033 u8 *wpa_ie, size_t *wpa_ie_len)
1035 struct wpa_ie_data ie;
1037 const u8 *bss_wpa, *bss_rsn, *bss_osen;
1040 bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1041 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1042 bss_osen = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1044 bss_wpa = bss_rsn = bss_osen = NULL;
1046 if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) &&
1047 wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 &&
1048 (ie.group_cipher & ssid->group_cipher) &&
1049 (ie.pairwise_cipher & ssid->pairwise_cipher) &&
1050 (ie.key_mgmt & ssid->key_mgmt)) {
1051 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0");
1052 proto = WPA_PROTO_RSN;
1053 } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) &&
1054 wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie) == 0 &&
1055 (ie.group_cipher & ssid->group_cipher) &&
1056 (ie.pairwise_cipher & ssid->pairwise_cipher) &&
1057 (ie.key_mgmt & ssid->key_mgmt)) {
1058 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0");
1059 proto = WPA_PROTO_WPA;
1061 } else if (bss_osen && (ssid->proto & WPA_PROTO_OSEN)) {
1062 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using OSEN");
1063 /* TODO: parse OSEN element */
1064 os_memset(&ie, 0, sizeof(ie));
1065 ie.group_cipher = WPA_CIPHER_CCMP;
1066 ie.pairwise_cipher = WPA_CIPHER_CCMP;
1067 ie.key_mgmt = WPA_KEY_MGMT_OSEN;
1068 proto = WPA_PROTO_OSEN;
1069 #endif /* CONFIG_HS20 */
1071 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN");
1072 wpa_dbg(wpa_s, MSG_DEBUG,
1073 "WPA: ssid proto=0x%x pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1074 ssid->proto, ssid->pairwise_cipher, ssid->group_cipher,
1076 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: BSS " MACSTR " ssid='%s'%s%s%s",
1077 MAC2STR(bss->bssid),
1078 wpa_ssid_txt(bss->ssid, bss->ssid_len),
1079 bss_wpa ? " WPA" : "",
1080 bss_rsn ? " RSN" : "",
1081 bss_osen ? " OSEN" : "");
1083 wpa_hexdump(MSG_DEBUG, "RSN", bss_rsn, 2 + bss_rsn[1]);
1084 if (wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie)) {
1085 wpa_dbg(wpa_s, MSG_DEBUG,
1086 "Could not parse RSN element");
1088 wpa_dbg(wpa_s, MSG_DEBUG,
1089 "RSN: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1090 ie.pairwise_cipher, ie.group_cipher,
1095 wpa_hexdump(MSG_DEBUG, "WPA", bss_wpa, 2 + bss_wpa[1]);
1096 if (wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie)) {
1097 wpa_dbg(wpa_s, MSG_DEBUG,
1098 "Could not parse WPA element");
1100 wpa_dbg(wpa_s, MSG_DEBUG,
1101 "WPA: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1102 ie.pairwise_cipher, ie.group_cipher,
1108 if (ssid->proto & WPA_PROTO_OSEN)
1109 proto = WPA_PROTO_OSEN;
1110 else if (ssid->proto & WPA_PROTO_RSN)
1111 proto = WPA_PROTO_RSN;
1113 proto = WPA_PROTO_WPA;
1114 if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) {
1115 os_memset(&ie, 0, sizeof(ie));
1116 ie.group_cipher = ssid->group_cipher;
1117 ie.pairwise_cipher = ssid->pairwise_cipher;
1118 ie.key_mgmt = ssid->key_mgmt;
1119 #ifdef CONFIG_IEEE80211W
1120 ie.mgmt_group_cipher =
1121 ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ?
1122 WPA_CIPHER_AES_128_CMAC : 0;
1123 #endif /* CONFIG_IEEE80211W */
1124 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites "
1125 "based on configuration");
1130 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d "
1131 "pairwise %d key_mgmt %d proto %d",
1132 ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto);
1133 #ifdef CONFIG_IEEE80211W
1134 if (ssid->ieee80211w) {
1135 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d",
1136 ie.mgmt_group_cipher);
1138 #endif /* CONFIG_IEEE80211W */
1140 wpa_s->wpa_proto = proto;
1141 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto);
1142 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
1143 !!(ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)));
1145 if (bss || !wpa_s->ap_ies_from_associnfo) {
1146 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1147 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1148 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1149 bss_rsn ? 2 + bss_rsn[1] : 0))
1153 sel = ie.group_cipher & ssid->group_cipher;
1154 wpa_s->group_cipher = wpa_pick_group_cipher(sel);
1155 if (wpa_s->group_cipher < 0) {
1156 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group "
1160 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
1161 wpa_cipher_txt(wpa_s->group_cipher));
1163 sel = ie.pairwise_cipher & ssid->pairwise_cipher;
1164 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(sel, 1);
1165 if (wpa_s->pairwise_cipher < 0) {
1166 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise "
1170 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
1171 wpa_cipher_txt(wpa_s->pairwise_cipher));
1173 sel = ie.key_mgmt & ssid->key_mgmt;
1175 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE))
1176 sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE);
1177 #endif /* CONFIG_SAE */
1179 #ifdef CONFIG_SUITEB192
1180 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
1181 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
1182 wpa_dbg(wpa_s, MSG_DEBUG,
1183 "WPA: using KEY_MGMT 802.1X with Suite B (192-bit)");
1184 #endif /* CONFIG_SUITEB192 */
1185 #ifdef CONFIG_SUITEB
1186 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
1187 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B;
1188 wpa_dbg(wpa_s, MSG_DEBUG,
1189 "WPA: using KEY_MGMT 802.1X with Suite B");
1190 #endif /* CONFIG_SUITEB */
1191 #ifdef CONFIG_IEEE80211R
1192 } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) {
1193 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X;
1194 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X");
1195 } else if (sel & WPA_KEY_MGMT_FT_PSK) {
1196 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK;
1197 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK");
1198 #endif /* CONFIG_IEEE80211R */
1200 } else if (sel & WPA_KEY_MGMT_SAE) {
1201 wpa_s->key_mgmt = WPA_KEY_MGMT_SAE;
1202 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT SAE");
1203 } else if (sel & WPA_KEY_MGMT_FT_SAE) {
1204 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_SAE;
1205 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT FT/SAE");
1206 #endif /* CONFIG_SAE */
1207 #ifdef CONFIG_IEEE80211W
1208 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) {
1209 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256;
1210 wpa_dbg(wpa_s, MSG_DEBUG,
1211 "WPA: using KEY_MGMT 802.1X with SHA256");
1212 } else if (sel & WPA_KEY_MGMT_PSK_SHA256) {
1213 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256;
1214 wpa_dbg(wpa_s, MSG_DEBUG,
1215 "WPA: using KEY_MGMT PSK with SHA256");
1216 #endif /* CONFIG_IEEE80211W */
1217 } else if (sel & WPA_KEY_MGMT_IEEE8021X) {
1218 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
1219 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X");
1220 } else if (sel & WPA_KEY_MGMT_PSK) {
1221 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
1222 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK");
1223 } else if (sel & WPA_KEY_MGMT_WPA_NONE) {
1224 wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE;
1225 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE");
1227 } else if (sel & WPA_KEY_MGMT_OSEN) {
1228 wpa_s->key_mgmt = WPA_KEY_MGMT_OSEN;
1229 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using KEY_MGMT OSEN");
1230 #endif /* CONFIG_HS20 */
1232 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select "
1233 "authenticated key management type");
1237 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
1238 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
1239 wpa_s->pairwise_cipher);
1240 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
1242 #ifdef CONFIG_IEEE80211W
1243 sel = ie.mgmt_group_cipher;
1244 if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION ||
1245 !(ie.capabilities & WPA_CAPABILITY_MFPC))
1247 if (sel & WPA_CIPHER_AES_128_CMAC) {
1248 wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC;
1249 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1251 } else if (sel & WPA_CIPHER_BIP_GMAC_128) {
1252 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_128;
1253 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1255 } else if (sel & WPA_CIPHER_BIP_GMAC_256) {
1256 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_256;
1257 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1259 } else if (sel & WPA_CIPHER_BIP_CMAC_256) {
1260 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_CMAC_256;
1261 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1264 wpa_s->mgmt_group_cipher = 0;
1265 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
1267 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
1268 wpa_s->mgmt_group_cipher);
1269 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP,
1270 wpas_get_ssid_pmf(wpa_s, ssid));
1271 #endif /* CONFIG_IEEE80211W */
1273 if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) {
1274 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE");
1278 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) {
1281 if (ssid->psk_set) {
1282 wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL);
1285 #ifndef CONFIG_NO_PBKDF2
1286 if (bss && ssid->bssid_set && ssid->ssid_len == 0 &&
1289 pbkdf2_sha1(ssid->passphrase, bss->ssid, bss->ssid_len,
1290 4096, psk, PMK_LEN);
1291 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
1293 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL);
1295 os_memset(psk, 0, sizeof(psk));
1297 #endif /* CONFIG_NO_PBKDF2 */
1298 #ifdef CONFIG_EXT_PASSWORD
1299 if (ssid->ext_psk) {
1300 struct wpabuf *pw = ext_password_get(wpa_s->ext_pw,
1302 char pw_str[64 + 1];
1306 wpa_msg(wpa_s, MSG_INFO, "EXT PW: No PSK "
1307 "found from external storage");
1311 if (wpabuf_len(pw) < 8 || wpabuf_len(pw) > 64) {
1312 wpa_msg(wpa_s, MSG_INFO, "EXT PW: Unexpected "
1313 "PSK length %d in external storage",
1314 (int) wpabuf_len(pw));
1315 ext_password_free(pw);
1319 os_memcpy(pw_str, wpabuf_head(pw), wpabuf_len(pw));
1320 pw_str[wpabuf_len(pw)] = '\0';
1322 #ifndef CONFIG_NO_PBKDF2
1323 if (wpabuf_len(pw) >= 8 && wpabuf_len(pw) < 64 && bss)
1325 pbkdf2_sha1(pw_str, bss->ssid, bss->ssid_len,
1326 4096, psk, PMK_LEN);
1327 os_memset(pw_str, 0, sizeof(pw_str));
1328 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from "
1329 "external passphrase)",
1331 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL);
1333 os_memset(psk, 0, sizeof(psk));
1335 #endif /* CONFIG_NO_PBKDF2 */
1336 if (wpabuf_len(pw) == 2 * PMK_LEN) {
1337 if (hexstr2bin(pw_str, psk, PMK_LEN) < 0) {
1338 wpa_msg(wpa_s, MSG_INFO, "EXT PW: "
1339 "Invalid PSK hex string");
1340 os_memset(pw_str, 0, sizeof(pw_str));
1341 ext_password_free(pw);
1344 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL);
1346 os_memset(psk, 0, sizeof(psk));
1348 wpa_msg(wpa_s, MSG_INFO, "EXT PW: No suitable "
1350 os_memset(pw_str, 0, sizeof(pw_str));
1351 ext_password_free(pw);
1355 os_memset(pw_str, 0, sizeof(pw_str));
1356 ext_password_free(pw);
1358 #endif /* CONFIG_EXT_PASSWORD */
1361 wpa_msg(wpa_s, MSG_INFO,
1362 "No PSK available for association");
1366 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
1372 static void wpas_ext_capab_byte(struct wpa_supplicant *wpa_s, u8 *pos, int idx)
1377 case 0: /* Bits 0-7 */
1379 case 1: /* Bits 8-15 */
1381 case 2: /* Bits 16-23 */
1383 *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */
1384 *pos |= 0x08; /* Bit 19 - BSS Transition */
1385 #endif /* CONFIG_WNM */
1387 case 3: /* Bits 24-31 */
1389 *pos |= 0x02; /* Bit 25 - SSID List */
1390 #endif /* CONFIG_WNM */
1391 #ifdef CONFIG_INTERWORKING
1392 if (wpa_s->conf->interworking)
1393 *pos |= 0x80; /* Bit 31 - Interworking */
1394 #endif /* CONFIG_INTERWORKING */
1396 case 4: /* Bits 32-39 */
1397 #ifdef CONFIG_INTERWORKING
1398 if (wpa_s->drv_flags / WPA_DRIVER_FLAGS_QOS_MAPPING)
1399 *pos |= 0x01; /* Bit 32 - QoS Map */
1400 #endif /* CONFIG_INTERWORKING */
1402 case 5: /* Bits 40-47 */
1404 if (wpa_s->conf->hs20)
1405 *pos |= 0x40; /* Bit 46 - WNM-Notification */
1406 #endif /* CONFIG_HS20 */
1408 case 6: /* Bits 48-55 */
1414 int wpas_build_ext_capab(struct wpa_supplicant *wpa_s, u8 *buf, size_t buflen)
1419 if (len < wpa_s->extended_capa_len)
1420 len = wpa_s->extended_capa_len;
1421 if (buflen < (size_t) len + 2) {
1422 wpa_printf(MSG_INFO,
1423 "Not enough room for building extended capabilities element");
1427 *pos++ = WLAN_EID_EXT_CAPAB;
1429 for (i = 0; i < len; i++, pos++) {
1430 wpas_ext_capab_byte(wpa_s, pos, i);
1432 if (i < wpa_s->extended_capa_len) {
1433 *pos &= ~wpa_s->extended_capa_mask[i];
1434 *pos |= wpa_s->extended_capa[i];
1438 while (len > 0 && buf[1 + len] == 0) {
1449 static int wpas_valid_bss(struct wpa_supplicant *wpa_s,
1450 struct wpa_bss *test_bss)
1452 struct wpa_bss *bss;
1454 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1455 if (bss == test_bss)
1463 static int wpas_valid_ssid(struct wpa_supplicant *wpa_s,
1464 struct wpa_ssid *test_ssid)
1466 struct wpa_ssid *ssid;
1468 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1469 if (ssid == test_ssid)
1477 int wpas_valid_bss_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *test_bss,
1478 struct wpa_ssid *test_ssid)
1480 if (test_bss && !wpas_valid_bss(wpa_s, test_bss))
1483 return test_ssid == NULL || wpas_valid_ssid(wpa_s, test_ssid);
1487 void wpas_connect_work_free(struct wpa_connect_work *cwork)
1495 void wpas_connect_work_done(struct wpa_supplicant *wpa_s)
1497 struct wpa_connect_work *cwork;
1498 struct wpa_radio_work *work = wpa_s->connect_work;
1503 wpa_s->connect_work = NULL;
1506 wpas_connect_work_free(cwork);
1507 radio_work_done(work);
1511 int wpas_update_random_addr(struct wpa_supplicant *wpa_s, int style)
1513 struct os_reltime now;
1516 os_get_reltime(&now);
1517 if (wpa_s->last_mac_addr_style == style &&
1518 wpa_s->last_mac_addr_change.sec != 0 &&
1519 !os_reltime_expired(&now, &wpa_s->last_mac_addr_change,
1520 wpa_s->conf->rand_addr_lifetime)) {
1521 wpa_msg(wpa_s, MSG_DEBUG,
1522 "Previously selected random MAC address has not yet expired");
1528 if (random_mac_addr(addr) < 0)
1532 os_memcpy(addr, wpa_s->perm_addr, ETH_ALEN);
1533 if (random_mac_addr_keep_oui(addr) < 0)
1540 if (wpa_drv_set_mac_addr(wpa_s, addr) < 0) {
1541 wpa_msg(wpa_s, MSG_INFO,
1542 "Failed to set random MAC address");
1546 os_get_reltime(&wpa_s->last_mac_addr_change);
1547 wpa_s->mac_addr_changed = 1;
1548 wpa_s->last_mac_addr_style = style;
1550 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
1551 wpa_msg(wpa_s, MSG_INFO,
1552 "Could not update MAC address information");
1556 wpa_msg(wpa_s, MSG_DEBUG, "Using random MAC address " MACSTR,
1563 int wpas_update_random_addr_disassoc(struct wpa_supplicant *wpa_s)
1565 if (wpa_s->wpa_state >= WPA_AUTHENTICATING ||
1566 !wpa_s->conf->preassoc_mac_addr)
1569 return wpas_update_random_addr(wpa_s, wpa_s->conf->preassoc_mac_addr);
1573 static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit);
1576 * wpa_supplicant_associate - Request association
1577 * @wpa_s: Pointer to wpa_supplicant data
1578 * @bss: Scan results for the selected BSS, or %NULL if not available
1579 * @ssid: Configuration data for the selected network
1581 * This function is used to request %wpa_supplicant to associate with a BSS.
1583 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
1584 struct wpa_bss *bss, struct wpa_ssid *ssid)
1586 struct wpa_connect_work *cwork;
1589 if (ssid->mac_addr == -1)
1590 rand_style = wpa_s->conf->mac_addr;
1592 rand_style = ssid->mac_addr;
1594 wmm_ac_clear_saved_tspecs(wpa_s);
1595 wpa_s->reassoc_same_bss = 0;
1597 if (wpa_s->last_ssid == ssid) {
1598 wpa_dbg(wpa_s, MSG_DEBUG, "Re-association to the same ESS");
1599 if (wpa_s->current_bss && wpa_s->current_bss == bss) {
1600 wmm_ac_save_tspecs(wpa_s);
1601 wpa_s->reassoc_same_bss = 1;
1603 } else if (rand_style > 0) {
1604 if (wpas_update_random_addr(wpa_s, rand_style) < 0)
1606 wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
1607 } else if (wpa_s->mac_addr_changed) {
1608 if (wpa_drv_set_mac_addr(wpa_s, NULL) < 0) {
1609 wpa_msg(wpa_s, MSG_INFO,
1610 "Could not restore permanent MAC address");
1613 wpa_s->mac_addr_changed = 0;
1614 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
1615 wpa_msg(wpa_s, MSG_INFO,
1616 "Could not update MAC address information");
1619 wpa_msg(wpa_s, MSG_DEBUG, "Using permanent MAC address");
1621 wpa_s->last_ssid = ssid;
1623 #ifdef CONFIG_IBSS_RSN
1624 ibss_rsn_deinit(wpa_s->ibss_rsn);
1625 wpa_s->ibss_rsn = NULL;
1626 #endif /* CONFIG_IBSS_RSN */
1628 if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO ||
1629 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1631 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) {
1632 wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP "
1636 if (wpa_supplicant_create_ap(wpa_s, ssid) < 0) {
1637 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1638 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1639 wpas_p2p_ap_setup_failed(wpa_s);
1642 wpa_s->current_bss = bss;
1643 #else /* CONFIG_AP */
1644 wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in "
1646 #endif /* CONFIG_AP */
1650 if (ssid->mode == WPAS_MODE_MESH) {
1652 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MESH)) {
1653 wpa_msg(wpa_s, MSG_INFO,
1654 "Driver does not support mesh mode");
1658 ssid->frequency = bss->freq;
1659 if (wpa_supplicant_join_mesh(wpa_s, ssid) < 0) {
1660 wpa_msg(wpa_s, MSG_ERROR, "Could not join mesh");
1663 wpa_s->current_bss = bss;
1664 wpa_msg_ctrl(wpa_s, MSG_INFO, MESH_GROUP_STARTED
1665 "ssid=\"%s\" id=%d",
1666 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1668 #else /* CONFIG_MESH */
1669 wpa_msg(wpa_s, MSG_ERROR,
1670 "mesh mode support not included in the build");
1671 #endif /* CONFIG_MESH */
1677 wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1),
1679 #endif /* CONFIG_TDLS */
1681 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1682 ssid->mode == IEEE80211_MODE_INFRA) {
1683 sme_authenticate(wpa_s, bss, ssid);
1687 if (wpa_s->connect_work) {
1688 wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since connect_work exist");
1692 if (radio_work_pending(wpa_s, "connect")) {
1693 wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since pending work exist");
1697 cwork = os_zalloc(sizeof(*cwork));
1704 if (radio_add_work(wpa_s, bss ? bss->freq : 0, "connect", 1,
1705 wpas_start_assoc_cb, cwork) < 0) {
1711 static int bss_is_ibss(struct wpa_bss *bss)
1713 return (bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
1718 void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
1719 const struct wpa_ssid *ssid,
1720 struct hostapd_freq_params *freq)
1722 enum hostapd_hw_mode hw_mode;
1723 struct hostapd_hw_modes *mode = NULL;
1724 int ht40plus[] = { 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157,
1726 int vht80[] = { 36, 52, 100, 116, 132, 149 };
1727 struct hostapd_channel_data *pri_chan = NULL, *sec_chan = NULL;
1729 int i, chan_idx, ht40 = -1, res, obss_scan = 1;
1731 struct hostapd_freq_params vht_freq;
1733 freq->freq = ssid->frequency;
1735 for (j = 0; j < wpa_s->last_scan_res_used; j++) {
1736 struct wpa_bss *bss = wpa_s->last_scan_res[j];
1738 if (ssid->mode != WPAS_MODE_IBSS)
1741 /* Don't adjust control freq in case of fixed_freq */
1742 if (ssid->fixed_freq)
1745 if (!bss_is_ibss(bss))
1748 if (ssid->ssid_len == bss->ssid_len &&
1749 os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) == 0) {
1750 wpa_printf(MSG_DEBUG,
1751 "IBSS already found in scan results, adjust control freq: %d",
1753 freq->freq = bss->freq;
1759 /* For IBSS check HT_IBSS flag */
1760 if (ssid->mode == WPAS_MODE_IBSS &&
1761 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_HT_IBSS))
1764 if (wpa_s->group_cipher == WPA_CIPHER_WEP40 ||
1765 wpa_s->group_cipher == WPA_CIPHER_WEP104 ||
1766 wpa_s->pairwise_cipher == WPA_CIPHER_TKIP) {
1767 wpa_printf(MSG_DEBUG,
1768 "IBSS: WEP/TKIP detected, do not try to enable HT");
1772 hw_mode = ieee80211_freq_to_chan(freq->freq, &channel);
1773 for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) {
1774 if (wpa_s->hw.modes[i].mode == hw_mode) {
1775 mode = &wpa_s->hw.modes[i];
1783 freq->ht_enabled = ht_supported(mode);
1784 if (!freq->ht_enabled)
1787 /* Setup higher BW only for 5 GHz */
1788 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
1791 for (chan_idx = 0; chan_idx < mode->num_channels; chan_idx++) {
1792 pri_chan = &mode->channels[chan_idx];
1793 if (pri_chan->chan == channel)
1800 /* Check primary channel flags */
1801 if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1804 /* Check/setup HT40+/HT40- */
1805 for (j = 0; j < ARRAY_SIZE(ht40plus); j++) {
1806 if (ht40plus[j] == channel) {
1812 /* Find secondary channel */
1813 for (i = 0; i < mode->num_channels; i++) {
1814 sec_chan = &mode->channels[i];
1815 if (sec_chan->chan == channel + ht40 * 4)
1822 /* Check secondary channel flags */
1823 if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1826 freq->channel = pri_chan->chan;
1830 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS))
1832 freq->sec_channel_offset = -1;
1835 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40PLUS))
1837 freq->sec_channel_offset = 1;
1843 if (freq->sec_channel_offset && obss_scan) {
1844 struct wpa_scan_results *scan_res;
1846 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, 0);
1847 if (scan_res == NULL) {
1849 freq->sec_channel_offset = 0;
1853 res = check_40mhz_5g(mode, scan_res, pri_chan->chan,
1858 freq->sec_channel_offset = 0;
1861 /* Configuration allowed */
1864 /* Switch pri/sec channels */
1865 freq->freq = hw_get_freq(mode, sec_chan->chan);
1866 freq->sec_channel_offset = -freq->sec_channel_offset;
1867 freq->channel = sec_chan->chan;
1870 freq->sec_channel_offset = 0;
1874 wpa_scan_results_free(scan_res);
1877 wpa_printf(MSG_DEBUG,
1878 "IBSS/mesh: setup freq channel %d, sec_channel_offset %d",
1879 freq->channel, freq->sec_channel_offset);
1881 /* Not sure if mesh is ready for VHT */
1882 if (ssid->mode != WPAS_MODE_IBSS)
1885 /* For IBSS check VHT_IBSS flag */
1886 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_VHT_IBSS))
1891 vht_freq.vht_enabled = vht_supported(mode);
1892 if (!vht_freq.vht_enabled)
1895 /* setup center_freq1, bandwidth */
1896 for (j = 0; j < ARRAY_SIZE(vht80); j++) {
1897 if (freq->channel >= vht80[j] &&
1898 freq->channel < vht80[j] + 16)
1902 if (j == ARRAY_SIZE(vht80))
1905 for (i = vht80[j]; i < vht80[j] + 16; i += 4) {
1906 struct hostapd_channel_data *chan;
1908 chan = hw_get_channel_chan(mode, i, NULL);
1912 /* Back to HT configuration if channel not usable */
1913 if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1917 if (hostapd_set_freq_params(&vht_freq, mode->mode, freq->freq,
1918 freq->channel, freq->ht_enabled,
1919 vht_freq.vht_enabled,
1920 freq->sec_channel_offset,
1921 VHT_CHANWIDTH_80MHZ,
1922 vht80[j] + 6, 0, 0) != 0)
1927 wpa_printf(MSG_DEBUG, "IBSS: VHT setup freq cf1 %d, cf2 %d, bw %d",
1928 freq->center_freq1, freq->center_freq2, freq->bandwidth);
1932 static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
1934 struct wpa_connect_work *cwork = work->ctx;
1935 struct wpa_bss *bss = cwork->bss;
1936 struct wpa_ssid *ssid = cwork->ssid;
1937 struct wpa_supplicant *wpa_s = work->wpa_s;
1940 int use_crypt, ret, i, bssid_changed;
1941 int algs = WPA_AUTH_ALG_OPEN;
1942 unsigned int cipher_pairwise, cipher_group;
1943 struct wpa_driver_associate_params params;
1944 int wep_keys_set = 0;
1945 int assoc_failed = 0;
1946 struct wpa_ssid *old_ssid;
1947 #ifdef CONFIG_HT_OVERRIDES
1948 struct ieee80211_ht_capabilities htcaps;
1949 struct ieee80211_ht_capabilities htcaps_mask;
1950 #endif /* CONFIG_HT_OVERRIDES */
1951 #ifdef CONFIG_VHT_OVERRIDES
1952 struct ieee80211_vht_capabilities vhtcaps;
1953 struct ieee80211_vht_capabilities vhtcaps_mask;
1954 #endif /* CONFIG_VHT_OVERRIDES */
1957 if (work->started) {
1958 wpa_s->connect_work = NULL;
1960 /* cancel possible auth. timeout */
1961 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s,
1964 wpas_connect_work_free(cwork);
1968 wpa_s->connect_work = work;
1970 if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid) ||
1971 wpas_network_disabled(wpa_s, ssid)) {
1972 wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt");
1973 wpas_connect_work_done(wpa_s);
1977 os_memset(¶ms, 0, sizeof(params));
1978 wpa_s->reassociate = 0;
1979 wpa_s->eap_expected_failure = 0;
1981 (!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) {
1982 #ifdef CONFIG_IEEE80211R
1983 const u8 *ie, *md = NULL;
1984 #endif /* CONFIG_IEEE80211R */
1985 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
1986 " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
1987 wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
1988 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
1989 os_memset(wpa_s->bssid, 0, ETH_ALEN);
1990 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
1992 wpas_notify_bssid_changed(wpa_s);
1993 #ifdef CONFIG_IEEE80211R
1994 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
1995 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
1997 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
1999 /* Prepare for the next transition */
2000 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
2002 #endif /* CONFIG_IEEE80211R */
2004 } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
2005 wpa_s->conf->ap_scan == 2 &&
2006 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
2007 /* Use ap_scan==1 style network selection to find the network
2009 wpas_connect_work_done(wpa_s);
2010 wpa_s->scan_req = MANUAL_SCAN_REQ;
2011 wpa_s->reassociate = 1;
2012 wpa_supplicant_req_scan(wpa_s, 0, 0);
2014 #endif /* CONFIG_WPS */
2016 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
2017 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2018 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2021 wpa_supplicant_cancel_sched_scan(wpa_s);
2023 wpa_supplicant_cancel_scan(wpa_s);
2025 /* Starting new association, so clear the possibly used WPA IE from the
2026 * previous association. */
2027 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2029 #ifdef IEEE8021X_EAPOL
2030 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2032 if (ssid->non_leap == 0)
2033 algs = WPA_AUTH_ALG_LEAP;
2035 algs |= WPA_AUTH_ALG_LEAP;
2038 #endif /* IEEE8021X_EAPOL */
2039 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs);
2040 if (ssid->auth_alg) {
2041 algs = ssid->auth_alg;
2042 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
2046 if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
2047 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
2048 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
2049 int try_opportunistic;
2050 try_opportunistic = (ssid->proactive_key_caching < 0 ?
2052 ssid->proactive_key_caching) &&
2053 (ssid->proto & WPA_PROTO_RSN);
2054 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
2055 ssid, try_opportunistic) == 0)
2056 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
2057 wpa_ie_len = sizeof(wpa_ie);
2058 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
2059 wpa_ie, &wpa_ie_len)) {
2060 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2061 "key management and encryption suites");
2062 wpas_connect_work_done(wpa_s);
2065 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss &&
2066 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
2068 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
2069 * use non-WPA since the scan results did not indicate that the
2070 * AP is using WPA or WPA2.
2072 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2074 wpa_s->wpa_proto = 0;
2075 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
2076 wpa_ie_len = sizeof(wpa_ie);
2077 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
2078 wpa_ie, &wpa_ie_len)) {
2079 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2080 "key management and encryption suites (no "
2082 wpas_connect_work_done(wpa_s);
2086 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2087 struct wpabuf *wps_ie;
2088 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
2089 if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) {
2090 wpa_ie_len = wpabuf_len(wps_ie);
2091 os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len);
2094 wpabuf_free(wps_ie);
2095 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2096 if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY))
2097 params.wps = WPS_MODE_PRIVACY;
2099 params.wps = WPS_MODE_OPEN;
2100 wpa_s->wpa_proto = 0;
2101 #endif /* CONFIG_WPS */
2103 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2105 wpa_s->wpa_proto = 0;
2109 if (wpa_s->global->p2p) {
2113 pos = wpa_ie + wpa_ie_len;
2114 len = sizeof(wpa_ie) - wpa_ie_len;
2115 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
2121 wpa_s->cross_connect_disallowed = 0;
2124 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
2126 wpa_s->cross_connect_disallowed =
2127 p2p_get_cross_connect_disallowed(p2p);
2129 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross "
2131 wpa_s->cross_connect_disallowed ?
2132 "disallows" : "allows");
2136 os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info));
2137 #endif /* CONFIG_P2P */
2140 if (is_hs20_network(wpa_s, ssid, bss)) {
2141 struct wpabuf *hs20;
2142 hs20 = wpabuf_alloc(20);
2144 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
2147 wpas_hs20_add_indication(hs20, pps_mo_id);
2148 len = sizeof(wpa_ie) - wpa_ie_len;
2149 if (wpabuf_len(hs20) <= len) {
2150 os_memcpy(wpa_ie + wpa_ie_len,
2151 wpabuf_head(hs20), wpabuf_len(hs20));
2152 wpa_ie_len += wpabuf_len(hs20);
2157 #endif /* CONFIG_HS20 */
2160 * Workaround: Add Extended Capabilities element only if the AP
2161 * included this element in Beacon/Probe Response frames. Some older
2162 * APs seem to have interoperability issues if this element is
2163 * included, so while the standard may require us to include the
2164 * element in all cases, it is justifiable to skip it to avoid
2165 * interoperability issues.
2167 if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) {
2170 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
2172 if (ext_capab_len > 0) {
2174 if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN)
2176 os_memmove(pos + ext_capab_len, pos,
2177 wpa_ie_len - (pos - wpa_ie));
2178 wpa_ie_len += ext_capab_len;
2179 os_memcpy(pos, ext_capab, ext_capab_len);
2183 if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
2184 struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
2187 len = sizeof(wpa_ie) - wpa_ie_len;
2188 if (wpabuf_len(buf) <= len) {
2189 os_memcpy(wpa_ie + wpa_ie_len,
2190 wpabuf_head(buf), wpabuf_len(buf));
2191 wpa_ie_len += wpabuf_len(buf);
2196 if (wpa_s->fst_ies) {
2197 int fst_ies_len = wpabuf_len(wpa_s->fst_ies);
2199 if (wpa_ie_len + fst_ies_len <= sizeof(wpa_ie)) {
2200 os_memcpy(wpa_ie + wpa_ie_len,
2201 wpabuf_head(wpa_s->fst_ies), fst_ies_len);
2202 wpa_ie_len += fst_ies_len;
2205 #endif /* CONFIG_FST */
2207 wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
2209 cipher_pairwise = wpa_s->pairwise_cipher;
2210 cipher_group = wpa_s->group_cipher;
2211 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2212 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2213 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE)
2215 if (wpa_set_wep_keys(wpa_s, ssid)) {
2220 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)
2223 #ifdef IEEE8021X_EAPOL
2224 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2225 if ((ssid->eapol_flags &
2226 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
2227 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 &&
2231 /* Assume that dynamic WEP-104 keys will be used and
2232 * set cipher suites in order for drivers to expect
2234 cipher_pairwise = cipher_group = WPA_CIPHER_WEP104;
2237 #endif /* IEEE8021X_EAPOL */
2239 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2240 /* Set the key before (and later after) association */
2241 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2244 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
2246 params.ssid = bss->ssid;
2247 params.ssid_len = bss->ssid_len;
2248 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2249 wpa_printf(MSG_DEBUG, "Limit connection to BSSID "
2250 MACSTR " freq=%u MHz based on scan results "
2252 MAC2STR(bss->bssid), bss->freq,
2254 params.bssid = bss->bssid;
2255 params.freq.freq = bss->freq;
2257 params.bssid_hint = bss->bssid;
2258 params.freq_hint = bss->freq;
2260 params.ssid = ssid->ssid;
2261 params.ssid_len = ssid->ssid_len;
2264 if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set &&
2265 wpa_s->conf->ap_scan == 2) {
2266 params.bssid = ssid->bssid;
2267 params.fixed_bssid = 1;
2270 /* Initial frequency for IBSS/mesh */
2271 if ((ssid->mode == WPAS_MODE_IBSS || ssid->mode == WPAS_MODE_MESH) &&
2272 ssid->frequency > 0 && params.freq.freq == 0)
2273 ibss_mesh_setup_freq(wpa_s, ssid, ¶ms.freq);
2275 if (ssid->mode == WPAS_MODE_IBSS) {
2276 params.fixed_freq = ssid->fixed_freq;
2277 if (ssid->beacon_int)
2278 params.beacon_int = ssid->beacon_int;
2280 params.beacon_int = wpa_s->conf->beacon_int;
2283 params.wpa_ie = wpa_ie;
2284 params.wpa_ie_len = wpa_ie_len;
2285 params.pairwise_suite = cipher_pairwise;
2286 params.group_suite = cipher_group;
2287 params.key_mgmt_suite = wpa_s->key_mgmt;
2288 params.wpa_proto = wpa_s->wpa_proto;
2289 params.auth_alg = algs;
2290 params.mode = ssid->mode;
2291 params.bg_scan_period = ssid->bg_scan_period;
2292 for (i = 0; i < NUM_WEP_KEYS; i++) {
2293 if (ssid->wep_key_len[i])
2294 params.wep_key[i] = ssid->wep_key[i];
2295 params.wep_key_len[i] = ssid->wep_key_len[i];
2297 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
2299 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2300 (params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2301 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
2302 params.passphrase = ssid->passphrase;
2304 params.psk = ssid->psk;
2307 if (wpa_s->conf->key_mgmt_offload) {
2308 if (params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
2309 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
2310 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
2311 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
2312 params.req_key_mgmt_offload =
2313 ssid->proactive_key_caching < 0 ?
2314 wpa_s->conf->okc : ssid->proactive_key_caching;
2316 params.req_key_mgmt_offload = 1;
2318 if ((params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2319 params.key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
2320 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK) &&
2322 params.psk = ssid->psk;
2325 params.drop_unencrypted = use_crypt;
2327 #ifdef CONFIG_IEEE80211W
2328 params.mgmt_frame_protection = wpas_get_ssid_pmf(wpa_s, ssid);
2329 if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) {
2330 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
2331 struct wpa_ie_data ie;
2332 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 &&
2334 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
2335 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports "
2336 "MFP: require MFP");
2337 params.mgmt_frame_protection =
2338 MGMT_FRAME_PROTECTION_REQUIRED;
2341 #endif /* CONFIG_IEEE80211W */
2343 params.p2p = ssid->p2p_group;
2345 if (wpa_s->parent->set_sta_uapsd)
2346 params.uapsd = wpa_s->parent->sta_uapsd;
2350 #ifdef CONFIG_HT_OVERRIDES
2351 os_memset(&htcaps, 0, sizeof(htcaps));
2352 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
2353 params.htcaps = (u8 *) &htcaps;
2354 params.htcaps_mask = (u8 *) &htcaps_mask;
2355 wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms);
2356 #endif /* CONFIG_HT_OVERRIDES */
2357 #ifdef CONFIG_VHT_OVERRIDES
2358 os_memset(&vhtcaps, 0, sizeof(vhtcaps));
2359 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
2360 params.vhtcaps = &vhtcaps;
2361 params.vhtcaps_mask = &vhtcaps_mask;
2362 wpa_supplicant_apply_vht_overrides(wpa_s, ssid, ¶ms);
2363 #endif /* CONFIG_VHT_OVERRIDES */
2367 * If multi-channel concurrency is not supported, check for any
2368 * frequency conflict. In case of any frequency conflict, remove the
2369 * least prioritized connection.
2371 if (wpa_s->num_multichan_concurrent < 2) {
2373 num = get_shared_radio_freqs(wpa_s, &freq, 1);
2374 if (num > 0 && freq > 0 && freq != params.freq.freq) {
2375 wpa_printf(MSG_DEBUG,
2376 "Assoc conflicting freq found (%d != %d)",
2377 freq, params.freq.freq);
2378 if (wpas_p2p_handle_frequency_conflicts(
2379 wpa_s, params.freq.freq, ssid) < 0) {
2380 wpas_connect_work_done(wpa_s);
2385 #endif /* CONFIG_P2P */
2387 ret = wpa_drv_associate(wpa_s, ¶ms);
2389 wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
2391 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) {
2393 * The driver is known to mean what is saying, so we
2394 * can stop right here; the association will not
2397 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
2398 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2399 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2402 /* try to continue anyway; new association will be tried again
2407 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2408 /* Set the key after the association just in case association
2409 * cleared the previously configured key. */
2410 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2411 /* No need to timeout authentication since there is no key
2413 wpa_supplicant_cancel_auth_timeout(wpa_s);
2414 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2415 #ifdef CONFIG_IBSS_RSN
2416 } else if (ssid->mode == WPAS_MODE_IBSS &&
2417 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2418 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
2420 * RSN IBSS authentication is per-STA and we can disable the
2421 * per-BSSID authentication.
2423 wpa_supplicant_cancel_auth_timeout(wpa_s);
2424 #endif /* CONFIG_IBSS_RSN */
2426 /* Timeout for IEEE 802.11 authentication and association */
2430 /* give IBSS a bit more time */
2431 timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5;
2432 } else if (wpa_s->conf->ap_scan == 1) {
2433 /* give IBSS a bit more time */
2434 timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10;
2436 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
2440 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) {
2441 /* Set static WEP keys again */
2442 wpa_set_wep_keys(wpa_s, ssid);
2445 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) {
2447 * Do not allow EAP session resumption between different
2448 * network configurations.
2450 eapol_sm_invalidate_cached_session(wpa_s->eapol);
2452 old_ssid = wpa_s->current_ssid;
2453 wpa_s->current_ssid = ssid;
2454 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set)
2455 wpa_s->current_bss = bss;
2456 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
2457 wpa_supplicant_initiate_eapol(wpa_s);
2458 if (old_ssid != wpa_s->current_ssid)
2459 wpas_notify_network_changed(wpa_s);
2463 static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s,
2466 struct wpa_ssid *old_ssid;
2468 wpas_connect_work_done(wpa_s);
2469 wpa_clear_keys(wpa_s, addr);
2470 old_ssid = wpa_s->current_ssid;
2471 wpa_supplicant_mark_disassoc(wpa_s);
2472 wpa_sm_set_config(wpa_s->wpa, NULL);
2473 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2474 if (old_ssid != wpa_s->current_ssid)
2475 wpas_notify_network_changed(wpa_s);
2476 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
2481 * wpa_supplicant_deauthenticate - Deauthenticate the current connection
2482 * @wpa_s: Pointer to wpa_supplicant data
2483 * @reason_code: IEEE 802.11 reason code for the deauthenticate frame
2485 * This function is used to request %wpa_supplicant to deauthenticate from the
2488 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
2492 union wpa_event_data event;
2495 wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR
2496 " pending_bssid=" MACSTR " reason=%d state=%s",
2497 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
2498 reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state));
2500 if (!is_zero_ether_addr(wpa_s->bssid))
2501 addr = wpa_s->bssid;
2502 else if (!is_zero_ether_addr(wpa_s->pending_bssid) &&
2503 (wpa_s->wpa_state == WPA_AUTHENTICATING ||
2504 wpa_s->wpa_state == WPA_ASSOCIATING))
2505 addr = wpa_s->pending_bssid;
2506 else if (wpa_s->wpa_state == WPA_ASSOCIATING) {
2508 * When using driver-based BSS selection, we may not know the
2509 * BSSID with which we are currently trying to associate. We
2510 * need to notify the driver of this disconnection even in such
2511 * a case, so use the all zeros address here.
2513 addr = wpa_s->bssid;
2518 wpa_tdls_teardown_peers(wpa_s->wpa);
2519 #endif /* CONFIG_TDLS */
2523 wpa_msg_ctrl(wpa_s, MSG_INFO, MESH_GROUP_REMOVED "%s",
2525 wpa_supplicant_leave_mesh(wpa_s);
2527 #endif /* CONFIG_MESH */
2530 wpa_drv_deauthenticate(wpa_s, addr, reason_code);
2531 os_memset(&event, 0, sizeof(event));
2532 event.deauth_info.reason_code = (u16) reason_code;
2533 event.deauth_info.locally_generated = 1;
2534 wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event);
2539 wpa_supplicant_clear_connection(wpa_s, addr);
2542 static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s,
2543 struct wpa_ssid *ssid)
2545 if (!ssid || !ssid->disabled || ssid->disabled == 2)
2549 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2550 wpas_notify_network_enabled_changed(wpa_s, ssid);
2553 * Try to reassociate since there is no current configuration and a new
2554 * network was made available.
2556 if (!wpa_s->current_ssid && !wpa_s->disconnected)
2557 wpa_s->reassociate = 1;
2562 * wpa_supplicant_enable_network - Mark a configured network as enabled
2563 * @wpa_s: wpa_supplicant structure for a network interface
2564 * @ssid: wpa_ssid structure for a configured network or %NULL
2566 * Enables the specified network or all networks if no network specified.
2568 void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
2569 struct wpa_ssid *ssid)
2572 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
2573 wpa_supplicant_enable_one_network(wpa_s, ssid);
2575 wpa_supplicant_enable_one_network(wpa_s, ssid);
2577 if (wpa_s->reassociate && !wpa_s->disconnected) {
2578 if (wpa_s->sched_scanning) {
2579 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add "
2580 "new network to scan filters");
2581 wpa_supplicant_cancel_sched_scan(wpa_s);
2584 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
2585 wpa_s->scan_req = NORMAL_SCAN_REQ;
2586 wpa_supplicant_req_scan(wpa_s, 0, 0);
2593 * wpa_supplicant_disable_network - Mark a configured network as disabled
2594 * @wpa_s: wpa_supplicant structure for a network interface
2595 * @ssid: wpa_ssid structure for a configured network or %NULL
2597 * Disables the specified network or all networks if no network specified.
2599 void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
2600 struct wpa_ssid *ssid)
2602 struct wpa_ssid *other_ssid;
2606 if (wpa_s->sched_scanning)
2607 wpa_supplicant_cancel_sched_scan(wpa_s);
2609 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2610 other_ssid = other_ssid->next) {
2611 was_disabled = other_ssid->disabled;
2612 if (was_disabled == 2)
2613 continue; /* do not change persistent P2P group
2616 other_ssid->disabled = 1;
2618 if (was_disabled != other_ssid->disabled)
2619 wpas_notify_network_enabled_changed(
2622 if (wpa_s->current_ssid)
2623 wpa_supplicant_deauthenticate(
2624 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2625 } else if (ssid->disabled != 2) {
2626 if (ssid == wpa_s->current_ssid)
2627 wpa_supplicant_deauthenticate(
2628 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2630 was_disabled = ssid->disabled;
2634 if (was_disabled != ssid->disabled) {
2635 wpas_notify_network_enabled_changed(wpa_s, ssid);
2636 if (wpa_s->sched_scanning) {
2637 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan "
2638 "to remove network from filters");
2639 wpa_supplicant_cancel_sched_scan(wpa_s);
2640 wpa_supplicant_req_scan(wpa_s, 0, 0);
2648 * wpa_supplicant_select_network - Attempt association with a network
2649 * @wpa_s: wpa_supplicant structure for a network interface
2650 * @ssid: wpa_ssid structure for a configured network or %NULL for any network
2652 void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
2653 struct wpa_ssid *ssid)
2656 struct wpa_ssid *other_ssid;
2657 int disconnected = 0;
2659 if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) {
2660 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2661 wpa_s->own_disconnect_req = 1;
2662 wpa_supplicant_deauthenticate(
2663 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2668 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2671 * Mark all other networks disabled or mark all networks enabled if no
2672 * network specified.
2674 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2675 other_ssid = other_ssid->next) {
2676 int was_disabled = other_ssid->disabled;
2677 if (was_disabled == 2)
2678 continue; /* do not change persistent P2P group data */
2680 other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0;
2681 if (was_disabled && !other_ssid->disabled)
2682 wpas_clear_temp_disabled(wpa_s, other_ssid, 0);
2684 if (was_disabled != other_ssid->disabled)
2685 wpas_notify_network_enabled_changed(wpa_s, other_ssid);
2688 if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid) {
2689 /* We are already associated with the selected network */
2690 wpa_printf(MSG_DEBUG, "Already associated with the "
2691 "selected network - do nothing");
2696 wpa_s->current_ssid = ssid;
2697 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2698 wpa_s->connect_without_scan =
2699 (ssid->mode == WPAS_MODE_MESH) ? ssid : NULL;
2702 * Don't optimize next scan freqs since a new ESS has been
2705 os_free(wpa_s->next_scan_freqs);
2706 wpa_s->next_scan_freqs = NULL;
2708 wpa_s->connect_without_scan = NULL;
2711 wpa_s->disconnected = 0;
2712 wpa_s->reassociate = 1;
2714 if (wpa_s->connect_without_scan ||
2715 wpa_supplicant_fast_associate(wpa_s) != 1) {
2716 wpa_s->scan_req = NORMAL_SCAN_REQ;
2717 wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0);
2721 wpas_notify_network_selected(wpa_s, ssid);
2726 * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path
2727 * @wpa_s: wpa_supplicant structure for a network interface
2728 * @pkcs11_engine_path: PKCS #11 engine path or NULL
2729 * @pkcs11_module_path: PKCS #11 module path or NULL
2730 * Returns: 0 on success; -1 on failure
2732 * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid
2733 * path. If resetting the EAPOL state machine with the new PKCS #11 engine and
2734 * module path fails the paths will be reset to the default value (NULL).
2736 int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant *wpa_s,
2737 const char *pkcs11_engine_path,
2738 const char *pkcs11_module_path)
2740 char *pkcs11_engine_path_copy = NULL;
2741 char *pkcs11_module_path_copy = NULL;
2743 if (pkcs11_engine_path != NULL) {
2744 pkcs11_engine_path_copy = os_strdup(pkcs11_engine_path);
2745 if (pkcs11_engine_path_copy == NULL)
2748 if (pkcs11_module_path != NULL) {
2749 pkcs11_module_path_copy = os_strdup(pkcs11_module_path);
2750 if (pkcs11_module_path_copy == NULL) {
2751 os_free(pkcs11_engine_path_copy);
2756 os_free(wpa_s->conf->pkcs11_engine_path);
2757 os_free(wpa_s->conf->pkcs11_module_path);
2758 wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path_copy;
2759 wpa_s->conf->pkcs11_module_path = pkcs11_module_path_copy;
2761 wpa_sm_set_eapol(wpa_s->wpa, NULL);
2762 eapol_sm_deinit(wpa_s->eapol);
2763 wpa_s->eapol = NULL;
2764 if (wpa_supplicant_init_eapol(wpa_s)) {
2765 /* Error -> Reset paths to the default value (NULL) once. */
2766 if (pkcs11_engine_path != NULL && pkcs11_module_path != NULL)
2767 wpas_set_pkcs11_engine_and_module_path(wpa_s, NULL,
2772 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
2779 * wpa_supplicant_set_ap_scan - Set AP scan mode for interface
2780 * @wpa_s: wpa_supplicant structure for a network interface
2781 * @ap_scan: AP scan mode
2782 * Returns: 0 if succeed or -1 if ap_scan has an invalid value
2785 int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan)
2790 if (ap_scan < 0 || ap_scan > 2)
2793 if (ap_scan == 2 && os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
2794 wpa_printf(MSG_INFO,
2795 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
2799 if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan &&
2800 wpa_s->wpa_state >= WPA_ASSOCIATING &&
2801 wpa_s->wpa_state < WPA_COMPLETED) {
2802 wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while "
2803 "associating", wpa_s->conf->ap_scan, ap_scan);
2806 #endif /* ANDROID */
2808 old_ap_scan = wpa_s->conf->ap_scan;
2809 wpa_s->conf->ap_scan = ap_scan;
2811 if (old_ap_scan != wpa_s->conf->ap_scan)
2812 wpas_notify_ap_scan_changed(wpa_s);
2819 * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age
2820 * @wpa_s: wpa_supplicant structure for a network interface
2821 * @expire_age: Expiration age in seconds
2822 * Returns: 0 if succeed or -1 if expire_age has an invalid value
2825 int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s,
2826 unsigned int bss_expire_age)
2828 if (bss_expire_age < 10) {
2829 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u",
2833 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec",
2835 wpa_s->conf->bss_expiration_age = bss_expire_age;
2842 * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count
2843 * @wpa_s: wpa_supplicant structure for a network interface
2844 * @expire_count: number of scans after which an unseen BSS is reclaimed
2845 * Returns: 0 if succeed or -1 if expire_count has an invalid value
2848 int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s,
2849 unsigned int bss_expire_count)
2851 if (bss_expire_count < 1) {
2852 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u",
2856 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u",
2858 wpa_s->conf->bss_expiration_scan_count = bss_expire_count;
2865 * wpa_supplicant_set_scan_interval - Set scan interval
2866 * @wpa_s: wpa_supplicant structure for a network interface
2867 * @scan_interval: scan interval in seconds
2868 * Returns: 0 if succeed or -1 if scan_interval has an invalid value
2871 int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s,
2874 if (scan_interval < 0) {
2875 wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d",
2879 wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec",
2881 wpa_supplicant_update_scan_int(wpa_s, scan_interval);
2888 * wpa_supplicant_set_debug_params - Set global debug params
2889 * @global: wpa_global structure
2890 * @debug_level: debug level
2891 * @debug_timestamp: determines if show timestamp in debug data
2892 * @debug_show_keys: determines if show keys in debug data
2893 * Returns: 0 if succeed or -1 if debug_level has wrong value
2895 int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level,
2896 int debug_timestamp, int debug_show_keys)
2899 int old_level, old_timestamp, old_show_keys;
2901 /* check for allowed debuglevels */
2902 if (debug_level != MSG_EXCESSIVE &&
2903 debug_level != MSG_MSGDUMP &&
2904 debug_level != MSG_DEBUG &&
2905 debug_level != MSG_INFO &&
2906 debug_level != MSG_WARNING &&
2907 debug_level != MSG_ERROR)
2910 old_level = wpa_debug_level;
2911 old_timestamp = wpa_debug_timestamp;
2912 old_show_keys = wpa_debug_show_keys;
2914 wpa_debug_level = debug_level;
2915 wpa_debug_timestamp = debug_timestamp ? 1 : 0;
2916 wpa_debug_show_keys = debug_show_keys ? 1 : 0;
2918 if (wpa_debug_level != old_level)
2919 wpas_notify_debug_level_changed(global);
2920 if (wpa_debug_timestamp != old_timestamp)
2921 wpas_notify_debug_timestamp_changed(global);
2922 if (wpa_debug_show_keys != old_show_keys)
2923 wpas_notify_debug_show_keys_changed(global);
2930 * wpa_supplicant_get_ssid - Get a pointer to the current network structure
2931 * @wpa_s: Pointer to wpa_supplicant data
2932 * Returns: A pointer to the current network structure or %NULL on failure
2934 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
2936 struct wpa_ssid *entry;
2937 u8 ssid[SSID_MAX_LEN];
2943 res = wpa_drv_get_ssid(wpa_s, ssid);
2945 wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from "
2951 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2952 wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from "
2957 wired = wpa_s->conf->ap_scan == 0 &&
2958 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED);
2960 entry = wpa_s->conf->ssid;
2962 if (!wpas_network_disabled(wpa_s, entry) &&
2963 ((ssid_len == entry->ssid_len &&
2964 os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) &&
2965 (!entry->bssid_set ||
2966 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
2969 if (!wpas_network_disabled(wpa_s, entry) &&
2970 (entry->key_mgmt & WPA_KEY_MGMT_WPS) &&
2971 (entry->ssid == NULL || entry->ssid_len == 0) &&
2972 (!entry->bssid_set ||
2973 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
2975 #endif /* CONFIG_WPS */
2977 if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set &&
2978 entry->ssid_len == 0 &&
2979 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)
2982 entry = entry->next;
2989 static int select_driver(struct wpa_supplicant *wpa_s, int i)
2991 struct wpa_global *global = wpa_s->global;
2993 if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) {
2994 global->drv_priv[i] = wpa_drivers[i]->global_init();
2995 if (global->drv_priv[i] == NULL) {
2996 wpa_printf(MSG_ERROR, "Failed to initialize driver "
2997 "'%s'", wpa_drivers[i]->name);
3002 wpa_s->driver = wpa_drivers[i];
3003 wpa_s->global_drv_priv = global->drv_priv[i];
3009 static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s,
3014 const char *pos, *driver = name;
3019 if (wpa_drivers[0] == NULL) {
3020 wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into "
3026 /* default to first driver in the list */
3027 return select_driver(wpa_s, 0);
3031 pos = os_strchr(driver, ',');
3035 len = os_strlen(driver);
3037 for (i = 0; wpa_drivers[i]; i++) {
3038 if (os_strlen(wpa_drivers[i]->name) == len &&
3039 os_strncmp(driver, wpa_drivers[i]->name, len) ==
3041 /* First driver that succeeds wins */
3042 if (select_driver(wpa_s, i) == 0)
3050 wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name);
3056 * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant
3057 * @ctx: Context pointer (wpa_s); this is the ctx variable registered
3058 * with struct wpa_driver_ops::init()
3059 * @src_addr: Source address of the EAPOL frame
3060 * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header)
3061 * @len: Length of the EAPOL data
3063 * This function is called for each received EAPOL frame. Most driver
3064 * interfaces rely on more generic OS mechanism for receiving frames through
3065 * l2_packet, but if such a mechanism is not available, the driver wrapper may
3066 * take care of received EAPOL frames and deliver them to the core supplicant
3067 * code by calling this function.
3069 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
3070 const u8 *buf, size_t len)
3072 struct wpa_supplicant *wpa_s = ctx;
3074 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr));
3075 wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len);
3077 #ifdef CONFIG_PEERKEY
3078 if (wpa_s->wpa_state > WPA_ASSOCIATED && wpa_s->current_ssid &&
3079 wpa_s->current_ssid->peerkey &&
3080 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
3081 wpa_sm_rx_eapol_peerkey(wpa_s->wpa, src_addr, buf, len) == 1) {
3082 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: Processed PeerKey EAPOL-Key");
3085 #endif /* CONFIG_PEERKEY */
3087 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3088 (wpa_s->last_eapol_matches_bssid &&
3091 #endif /* CONFIG_AP */
3092 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) {
3094 * There is possible race condition between receiving the
3095 * association event and the EAPOL frame since they are coming
3096 * through different paths from the driver. In order to avoid
3097 * issues in trying to process the EAPOL frame before receiving
3098 * association information, lets queue it for processing until
3099 * the association event is received. This may also be needed in
3100 * driver-based roaming case, so also use src_addr != BSSID as a
3101 * trigger if we have previously confirmed that the
3102 * Authenticator uses BSSID as the src_addr (which is not the
3103 * case with wired IEEE 802.1X).
3105 wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing "
3106 "of received EAPOL frame (state=%s bssid=" MACSTR ")",
3107 wpa_supplicant_state_txt(wpa_s->wpa_state),
3108 MAC2STR(wpa_s->bssid));
3109 wpabuf_free(wpa_s->pending_eapol_rx);
3110 wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len);
3111 if (wpa_s->pending_eapol_rx) {
3112 os_get_reltime(&wpa_s->pending_eapol_rx_time);
3113 os_memcpy(wpa_s->pending_eapol_rx_src, src_addr,
3119 wpa_s->last_eapol_matches_bssid =
3120 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0;
3123 if (wpa_s->ap_iface) {
3124 wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len);
3127 #endif /* CONFIG_AP */
3129 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
3130 wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since "
3131 "no key management is configured");
3135 if (wpa_s->eapol_received == 0 &&
3136 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) ||
3137 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3138 wpa_s->wpa_state != WPA_COMPLETED) &&
3139 (wpa_s->current_ssid == NULL ||
3140 wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) {
3141 /* Timeout for completing IEEE 802.1X and WPA authentication */
3144 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3145 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA ||
3146 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
3147 /* Use longer timeout for IEEE 802.1X/EAP */
3152 if (wpa_s->current_ssid && wpa_s->current_bss &&
3153 (wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
3154 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
3156 * Use shorter timeout if going through WPS AP iteration
3157 * for PIN config method with an AP that does not
3158 * advertise Selected Registrar.
3160 struct wpabuf *wps_ie;
3162 wps_ie = wpa_bss_get_vendor_ie_multi(
3163 wpa_s->current_bss, WPS_IE_VENDOR_TYPE);
3165 !wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1))
3167 wpabuf_free(wps_ie);
3169 #endif /* CONFIG_WPS */
3171 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
3173 wpa_s->eapol_received++;
3175 if (wpa_s->countermeasures) {
3176 wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped "
3181 #ifdef CONFIG_IBSS_RSN
3182 if (wpa_s->current_ssid &&
3183 wpa_s->current_ssid->mode == WPAS_MODE_IBSS) {
3184 ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len);
3187 #endif /* CONFIG_IBSS_RSN */
3189 /* Source address of the incoming EAPOL frame could be compared to the
3190 * current BSSID. However, it is possible that a centralized
3191 * Authenticator could be using another MAC address than the BSSID of
3192 * an AP, so just allow any address to be used for now. The replies are
3193 * still sent to the current BSSID (if available), though. */
3195 os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN);
3196 if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) &&
3197 eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0)
3199 wpa_drv_poll(wpa_s);
3200 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
3201 wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len);
3202 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3204 * Set portValid = TRUE here since we are going to skip 4-way
3205 * handshake processing which would normally set portValid. We
3206 * need this to allow the EAPOL state machines to be completed
3207 * without going through EAPOL-Key handshake.
3209 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3214 int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s)
3216 if ((!wpa_s->p2p_mgmt ||
3217 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
3218 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) {
3219 l2_packet_deinit(wpa_s->l2);
3220 wpa_s->l2 = l2_packet_init(wpa_s->ifname,
3221 wpa_drv_get_mac_addr(wpa_s),
3223 wpa_supplicant_rx_eapol, wpa_s, 0);
3224 if (wpa_s->l2 == NULL)
3227 const u8 *addr = wpa_drv_get_mac_addr(wpa_s);
3229 os_memcpy(wpa_s->own_addr, addr, ETH_ALEN);
3232 if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) {
3233 wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address");
3237 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3243 static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr,
3244 const u8 *buf, size_t len)
3246 struct wpa_supplicant *wpa_s = ctx;
3247 const struct l2_ethhdr *eth;
3249 if (len < sizeof(*eth))
3251 eth = (const struct l2_ethhdr *) buf;
3253 if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 &&
3254 !(eth->h_dest[0] & 0x01)) {
3255 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3256 " (bridge - not for this interface - ignore)",
3257 MAC2STR(src_addr), MAC2STR(eth->h_dest));
3261 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3262 " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest));
3263 wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth),
3264 len - sizeof(*eth));
3269 * wpa_supplicant_driver_init - Initialize driver interface parameters
3270 * @wpa_s: Pointer to wpa_supplicant data
3271 * Returns: 0 on success, -1 on failure
3273 * This function is called to initialize driver interface parameters.
3274 * wpa_drv_init() must have been called before this function to initialize the
3277 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
3279 static int interface_count = 0;
3281 if (wpa_supplicant_update_mac_addr(wpa_s) < 0)
3284 wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR,
3285 MAC2STR(wpa_s->own_addr));
3286 os_memcpy(wpa_s->perm_addr, wpa_s->own_addr, ETH_ALEN);
3287 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3289 if (wpa_s->bridge_ifname[0]) {
3290 wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge "
3291 "interface '%s'", wpa_s->bridge_ifname);
3292 wpa_s->l2_br = l2_packet_init_bridge(
3293 wpa_s->bridge_ifname, wpa_s->ifname, wpa_s->own_addr,
3294 ETH_P_EAPOL, wpa_supplicant_rx_eapol_bridge, wpa_s, 1);
3295 if (wpa_s->l2_br == NULL) {
3296 wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet "
3297 "connection for the bridge interface '%s'",
3298 wpa_s->bridge_ifname);
3303 if (wpa_s->conf->ap_scan == 2 &&
3304 os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
3305 wpa_printf(MSG_INFO,
3306 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
3309 wpa_clear_keys(wpa_s, NULL);
3311 /* Make sure that TKIP countermeasures are not left enabled (could
3312 * happen if wpa_supplicant is killed during countermeasures. */
3313 wpa_drv_set_countermeasures(wpa_s, 0);
3315 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver");
3316 wpa_drv_flush_pmkid(wpa_s);
3318 wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
3319 wpa_s->prev_scan_wildcard = 0;
3321 if (wpa_supplicant_enabled_networks(wpa_s)) {
3322 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3323 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3324 interface_count = 0;
3327 if (!wpa_s->p2p_mgmt &&
3328 wpa_supplicant_delayed_sched_scan(wpa_s,
3329 interface_count % 3,
3331 wpa_supplicant_req_scan(wpa_s, interface_count % 3,
3333 #endif /* ANDROID */
3336 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
3342 static int wpa_supplicant_daemon(const char *pid_file)
3344 wpa_printf(MSG_DEBUG, "Daemonize..");
3345 return os_daemonize(pid_file);
3349 static struct wpa_supplicant *
3350 wpa_supplicant_alloc(struct wpa_supplicant *parent)
3352 struct wpa_supplicant *wpa_s;
3354 wpa_s = os_zalloc(sizeof(*wpa_s));
3357 wpa_s->scan_req = INITIAL_SCAN_REQ;
3358 wpa_s->scan_interval = 5;
3359 wpa_s->new_connection = 1;
3360 wpa_s->parent = parent ? parent : wpa_s;
3361 wpa_s->sched_scanning = 0;
3367 #ifdef CONFIG_HT_OVERRIDES
3369 static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s,
3370 struct ieee80211_ht_capabilities *htcaps,
3371 struct ieee80211_ht_capabilities *htcaps_mask,
3374 /* parse ht_mcs into hex array */
3376 const char *tmp = ht_mcs;
3379 /* If ht_mcs is null, do not set anything */
3383 /* This is what we are setting in the kernel */
3384 os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN);
3386 wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs);
3388 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3390 long v = strtol(tmp, &end, 16);
3392 wpa_msg(wpa_s, MSG_DEBUG,
3393 "htcap value[%i]: %ld end: %p tmp: %p",
3398 htcaps->supported_mcs_set[i] = v;
3401 wpa_msg(wpa_s, MSG_ERROR,
3402 "Failed to parse ht-mcs: %s, error: %s\n",
3403 ht_mcs, strerror(errno));
3409 * If we were able to parse any values, then set mask for the MCS set.
3412 os_memset(&htcaps_mask->supported_mcs_set, 0xff,
3413 IEEE80211_HT_MCS_MASK_LEN - 1);
3414 /* skip the 3 reserved bits */
3415 htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] =
3423 static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s,
3424 struct ieee80211_ht_capabilities *htcaps,
3425 struct ieee80211_ht_capabilities *htcaps_mask,
3430 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled);
3435 msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE);
3436 htcaps_mask->ht_capabilities_info |= msk;
3438 htcaps->ht_capabilities_info &= msk;
3440 htcaps->ht_capabilities_info |= msk;
3446 static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s,
3447 struct ieee80211_ht_capabilities *htcaps,
3448 struct ieee80211_ht_capabilities *htcaps_mask,
3451 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor);
3456 if (factor < 0 || factor > 3) {
3457 wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. "
3458 "Must be 0-3 or -1", factor);
3462 htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */
3463 htcaps->a_mpdu_params &= ~0x3;
3464 htcaps->a_mpdu_params |= factor & 0x3;
3470 static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s,
3471 struct ieee80211_ht_capabilities *htcaps,
3472 struct ieee80211_ht_capabilities *htcaps_mask,
3475 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density);
3480 if (density < 0 || density > 7) {
3481 wpa_msg(wpa_s, MSG_ERROR,
3482 "ampdu_density: %d out of range. Must be 0-7 or -1.",
3487 htcaps_mask->a_mpdu_params |= 0x1C;
3488 htcaps->a_mpdu_params &= ~(0x1C);
3489 htcaps->a_mpdu_params |= (density << 2) & 0x1C;
3495 static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s,
3496 struct ieee80211_ht_capabilities *htcaps,
3497 struct ieee80211_ht_capabilities *htcaps_mask,
3500 /* Masking these out disables HT40 */
3501 le16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET |
3502 HT_CAP_INFO_SHORT_GI40MHZ);
3504 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled);
3507 htcaps->ht_capabilities_info &= ~msk;
3509 htcaps->ht_capabilities_info |= msk;
3511 htcaps_mask->ht_capabilities_info |= msk;
3517 static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s,
3518 struct ieee80211_ht_capabilities *htcaps,
3519 struct ieee80211_ht_capabilities *htcaps_mask,
3522 /* Masking these out disables SGI */
3523 le16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ |
3524 HT_CAP_INFO_SHORT_GI40MHZ);
3526 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled);
3529 htcaps->ht_capabilities_info &= ~msk;
3531 htcaps->ht_capabilities_info |= msk;
3533 htcaps_mask->ht_capabilities_info |= msk;
3539 static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s,
3540 struct ieee80211_ht_capabilities *htcaps,
3541 struct ieee80211_ht_capabilities *htcaps_mask,
3544 /* Masking these out disables LDPC */
3545 le16 msk = host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP);
3547 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ldpc: %d", disabled);
3550 htcaps->ht_capabilities_info &= ~msk;
3552 htcaps->ht_capabilities_info |= msk;
3554 htcaps_mask->ht_capabilities_info |= msk;
3560 void wpa_supplicant_apply_ht_overrides(
3561 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3562 struct wpa_driver_associate_params *params)
3564 struct ieee80211_ht_capabilities *htcaps;
3565 struct ieee80211_ht_capabilities *htcaps_mask;
3570 params->disable_ht = ssid->disable_ht;
3571 if (!params->htcaps || !params->htcaps_mask)
3574 htcaps = (struct ieee80211_ht_capabilities *) params->htcaps;
3575 htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask;
3576 wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs);
3577 wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask,
3578 ssid->disable_max_amsdu);
3579 wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor);
3580 wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density);
3581 wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40);
3582 wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi);
3583 wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc);
3585 if (ssid->ht40_intolerant) {
3586 le16 bit = host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT);
3587 htcaps->ht_capabilities_info |= bit;
3588 htcaps_mask->ht_capabilities_info |= bit;
3592 #endif /* CONFIG_HT_OVERRIDES */
3595 #ifdef CONFIG_VHT_OVERRIDES
3596 void wpa_supplicant_apply_vht_overrides(
3597 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3598 struct wpa_driver_associate_params *params)
3600 struct ieee80211_vht_capabilities *vhtcaps;
3601 struct ieee80211_vht_capabilities *vhtcaps_mask;
3606 params->disable_vht = ssid->disable_vht;
3608 vhtcaps = (void *) params->vhtcaps;
3609 vhtcaps_mask = (void *) params->vhtcaps_mask;
3611 if (!vhtcaps || !vhtcaps_mask)
3614 vhtcaps->vht_capabilities_info = ssid->vht_capa;
3615 vhtcaps_mask->vht_capabilities_info = ssid->vht_capa_mask;
3617 #ifdef CONFIG_HT_OVERRIDES
3618 /* if max ampdu is <= 3, we have to make the HT cap the same */
3619 if (ssid->vht_capa_mask & VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) {
3622 max_ampdu = (ssid->vht_capa &
3623 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) >>
3624 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX_SHIFT;
3626 max_ampdu = max_ampdu < 3 ? max_ampdu : 3;
3627 wpa_set_ampdu_factor(wpa_s,
3628 (void *) params->htcaps,
3629 (void *) params->htcaps_mask,
3632 #endif /* CONFIG_HT_OVERRIDES */
3634 #define OVERRIDE_MCS(i) \
3635 if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \
3636 vhtcaps_mask->vht_supported_mcs_set.tx_map |= \
3638 vhtcaps->vht_supported_mcs_set.tx_map |= \
3639 ssid->vht_tx_mcs_nss_ ##i << 2 * (i - 1); \
3641 if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \
3642 vhtcaps_mask->vht_supported_mcs_set.rx_map |= \
3644 vhtcaps->vht_supported_mcs_set.rx_map |= \
3645 ssid->vht_rx_mcs_nss_ ##i << 2 * (i - 1); \
3657 #endif /* CONFIG_VHT_OVERRIDES */
3660 static int pcsc_reader_init(struct wpa_supplicant *wpa_s)
3665 if (!wpa_s->conf->pcsc_reader)
3668 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
3672 if (wpa_s->conf->pcsc_pin &&
3673 scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) {
3674 scard_deinit(wpa_s->scard);
3675 wpa_s->scard = NULL;
3676 wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed");
3680 len = sizeof(wpa_s->imsi) - 1;
3681 if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) {
3682 scard_deinit(wpa_s->scard);
3683 wpa_s->scard = NULL;
3684 wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI");
3687 wpa_s->imsi[len] = '\0';
3689 wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard);
3691 wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)",
3692 wpa_s->imsi, wpa_s->mnc_len);
3694 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
3695 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
3696 #endif /* PCSC_FUNCS */
3702 int wpas_init_ext_pw(struct wpa_supplicant *wpa_s)
3706 ext_password_deinit(wpa_s->ext_pw);
3707 wpa_s->ext_pw = NULL;
3708 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL);
3710 if (!wpa_s->conf->ext_password_backend)
3713 val = os_strdup(wpa_s->conf->ext_password_backend);
3716 pos = os_strchr(val, ':');
3720 wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val);
3722 wpa_s->ext_pw = ext_password_init(val, pos);
3724 if (wpa_s->ext_pw == NULL) {
3725 wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend");
3728 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw);
3736 static const u8 * wpas_fst_get_bssid_cb(void *ctx)
3738 struct wpa_supplicant *wpa_s = ctx;
3740 return (is_zero_ether_addr(wpa_s->bssid) ||
3741 wpa_s->wpa_state != WPA_COMPLETED) ? NULL : wpa_s->bssid;
3745 static void wpas_fst_get_channel_info_cb(void *ctx,
3746 enum hostapd_hw_mode *hw_mode,
3749 struct wpa_supplicant *wpa_s = ctx;
3751 if (wpa_s->current_bss) {
3752 *hw_mode = ieee80211_freq_to_chan(wpa_s->current_bss->freq,
3754 } else if (wpa_s->hw.num_modes) {
3755 *hw_mode = wpa_s->hw.modes[0].mode;
3763 static int wpas_fst_get_hw_modes(void *ctx, struct hostapd_hw_modes **modes)
3765 struct wpa_supplicant *wpa_s = ctx;
3767 *modes = wpa_s->hw.modes;
3768 return wpa_s->hw.num_modes;
3772 static void wpas_fst_set_ies_cb(void *ctx, const struct wpabuf *fst_ies)
3774 struct wpa_supplicant *wpa_s = ctx;
3776 wpa_hexdump_buf(MSG_DEBUG, "FST: Set IEs", fst_ies);
3777 wpa_s->fst_ies = fst_ies;
3781 static int wpas_fst_send_action_cb(void *ctx, const u8 *da, struct wpabuf *data)
3783 struct wpa_supplicant *wpa_s = ctx;
3785 WPA_ASSERT(os_memcmp(wpa_s->bssid, da, ETH_ALEN) == 0);
3786 return wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
3787 wpa_s->own_addr, wpa_s->bssid,
3788 wpabuf_head(data), wpabuf_len(data),
3793 static const struct wpabuf * wpas_fst_get_mb_ie_cb(void *ctx, const u8 *addr)
3795 struct wpa_supplicant *wpa_s = ctx;
3797 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
3798 return wpa_s->received_mb_ies;
3802 static void wpas_fst_update_mb_ie_cb(void *ctx, const u8 *addr,
3803 const u8 *buf, size_t size)
3805 struct wpa_supplicant *wpa_s = ctx;
3806 struct mb_ies_info info;
3808 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
3810 if (!mb_ies_info_by_ies(&info, buf, size)) {
3811 wpabuf_free(wpa_s->received_mb_ies);
3812 wpa_s->received_mb_ies = mb_ies_by_info(&info);
3817 const u8 * wpas_fst_get_peer_first(void *ctx, struct fst_get_peer_ctx **get_ctx,
3820 struct wpa_supplicant *wpa_s = ctx;
3823 if (!is_zero_ether_addr(wpa_s->bssid))
3824 return (wpa_s->received_mb_ies || !mb_only) ?
3825 wpa_s->bssid : NULL;
3830 const u8 * wpas_fst_get_peer_next(void *ctx, struct fst_get_peer_ctx **get_ctx,
3836 void fst_wpa_supplicant_fill_iface_obj(struct wpa_supplicant *wpa_s,
3837 struct fst_wpa_obj *iface_obj)
3839 iface_obj->ctx = wpa_s;
3840 iface_obj->get_bssid = wpas_fst_get_bssid_cb;
3841 iface_obj->get_channel_info = wpas_fst_get_channel_info_cb;
3842 iface_obj->get_hw_modes = wpas_fst_get_hw_modes;
3843 iface_obj->set_ies = wpas_fst_set_ies_cb;
3844 iface_obj->send_action = wpas_fst_send_action_cb;
3845 iface_obj->get_mb_ie = wpas_fst_get_mb_ie_cb;
3846 iface_obj->update_mb_ie = wpas_fst_update_mb_ie_cb;
3847 iface_obj->get_peer_first = wpas_fst_get_peer_first;
3848 iface_obj->get_peer_next = wpas_fst_get_peer_next;
3850 #endif /* CONFIG_FST */
3852 static int wpas_set_wowlan_triggers(struct wpa_supplicant *wpa_s,
3853 const struct wpa_driver_capa *capa)
3855 struct wowlan_triggers *triggers;
3858 if (!wpa_s->conf->wowlan_triggers)
3861 triggers = wpa_get_wowlan_triggers(wpa_s->conf->wowlan_triggers, capa);
3863 ret = wpa_drv_wowlan(wpa_s, triggers);
3870 static struct wpa_radio * radio_add_interface(struct wpa_supplicant *wpa_s,
3873 struct wpa_supplicant *iface = wpa_s->global->ifaces;
3874 struct wpa_radio *radio;
3876 while (rn && iface) {
3877 radio = iface->radio;
3878 if (radio && os_strcmp(rn, radio->name) == 0) {
3879 wpa_printf(MSG_DEBUG, "Add interface %s to existing radio %s",
3881 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
3885 iface = iface->next;
3888 wpa_printf(MSG_DEBUG, "Add interface %s to a new radio %s",
3889 wpa_s->ifname, rn ? rn : "N/A");
3890 radio = os_zalloc(sizeof(*radio));
3895 os_strlcpy(radio->name, rn, sizeof(radio->name));
3896 dl_list_init(&radio->ifaces);
3897 dl_list_init(&radio->work);
3898 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
3904 static void radio_work_free(struct wpa_radio_work *work)
3906 if (work->wpa_s->scan_work == work) {
3907 /* This should not really happen. */
3908 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work",
3909 work->type, work, work->started);
3910 work->wpa_s->scan_work = NULL;
3914 if (work->wpa_s->p2p_scan_work == work) {
3915 /* This should not really happen. */
3916 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work",
3917 work->type, work, work->started);
3918 work->wpa_s->p2p_scan_work = NULL;
3920 #endif /* CONFIG_P2P */
3922 dl_list_del(&work->list);
3927 static void radio_start_next_work(void *eloop_ctx, void *timeout_ctx)
3929 struct wpa_radio *radio = eloop_ctx;
3930 struct wpa_radio_work *work;
3931 struct os_reltime now, diff;
3932 struct wpa_supplicant *wpa_s;
3934 work = dl_list_first(&radio->work, struct wpa_radio_work, list);
3939 return; /* already started and still in progress */
3941 wpa_s = dl_list_first(&radio->ifaces, struct wpa_supplicant,
3943 if (wpa_s && wpa_s->radio->external_scan_running) {
3944 wpa_printf(MSG_DEBUG, "Delay radio work start until externally triggered scan completes");
3948 os_get_reltime(&now);
3949 os_reltime_sub(&now, &work->time, &diff);
3950 wpa_dbg(work->wpa_s, MSG_DEBUG, "Starting radio work '%s'@%p after %ld.%06ld second wait",
3951 work->type, work, diff.sec, diff.usec);
3959 * This function removes both started and pending radio works running on
3960 * the provided interface's radio.
3961 * Prior to the removal of the radio work, its callback (cb) is called with
3962 * deinit set to be 1. Each work's callback is responsible for clearing its
3963 * internal data and restoring to a correct state.
3964 * @wpa_s: wpa_supplicant data
3965 * @type: type of works to be removed
3966 * @remove_all: 1 to remove all the works on this radio, 0 to remove only
3967 * this interface's works.
3969 void radio_remove_works(struct wpa_supplicant *wpa_s,
3970 const char *type, int remove_all)
3972 struct wpa_radio_work *work, *tmp;
3973 struct wpa_radio *radio = wpa_s->radio;
3975 dl_list_for_each_safe(work, tmp, &radio->work, struct wpa_radio_work,
3977 if (type && os_strcmp(type, work->type) != 0)
3980 /* skip other ifaces' works */
3981 if (!remove_all && work->wpa_s != wpa_s)
3984 wpa_dbg(wpa_s, MSG_DEBUG, "Remove radio work '%s'@%p%s",
3985 work->type, work, work->started ? " (started)" : "");
3987 radio_work_free(work);
3990 /* in case we removed the started work */
3991 radio_work_check_next(wpa_s);
3995 static void radio_remove_interface(struct wpa_supplicant *wpa_s)
3997 struct wpa_radio *radio = wpa_s->radio;
4002 wpa_printf(MSG_DEBUG, "Remove interface %s from radio %s",
4003 wpa_s->ifname, radio->name);
4004 dl_list_del(&wpa_s->radio_list);
4005 radio_remove_works(wpa_s, NULL, 0);
4006 wpa_s->radio = NULL;
4007 if (!dl_list_empty(&radio->ifaces))
4008 return; /* Interfaces remain for this radio */
4010 wpa_printf(MSG_DEBUG, "Remove radio %s", radio->name);
4011 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4016 void radio_work_check_next(struct wpa_supplicant *wpa_s)
4018 struct wpa_radio *radio = wpa_s->radio;
4020 if (dl_list_empty(&radio->work))
4022 if (wpa_s->ext_work_in_progress) {
4023 wpa_printf(MSG_DEBUG,
4024 "External radio work in progress - delay start of pending item");
4027 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4028 eloop_register_timeout(0, 0, radio_start_next_work, radio, NULL);
4033 * radio_add_work - Add a radio work item
4034 * @wpa_s: Pointer to wpa_supplicant data
4035 * @freq: Frequency of the offchannel operation in MHz or 0
4036 * @type: Unique identifier for each type of work
4037 * @next: Force as the next work to be executed
4038 * @cb: Callback function for indicating when radio is available
4039 * @ctx: Context pointer for the work (work->ctx in cb())
4040 * Returns: 0 on success, -1 on failure
4042 * This function is used to request time for an operation that requires
4043 * exclusive radio control. Once the radio is available, the registered callback
4044 * function will be called. radio_work_done() must be called once the exclusive
4045 * radio operation has been completed, so that the radio is freed for other
4046 * operations. The special case of deinit=1 is used to free the context data
4047 * during interface removal. That does not allow the callback function to start
4048 * the radio operation, i.e., it must free any resources allocated for the radio
4051 * The @freq parameter can be used to indicate a single channel on which the
4052 * offchannel operation will occur. This may allow multiple radio work
4053 * operations to be performed in parallel if they apply for the same channel.
4054 * Setting this to 0 indicates that the work item may use multiple channels or
4055 * requires exclusive control of the radio.
4057 int radio_add_work(struct wpa_supplicant *wpa_s, unsigned int freq,
4058 const char *type, int next,
4059 void (*cb)(struct wpa_radio_work *work, int deinit),
4062 struct wpa_radio_work *work;
4065 work = os_zalloc(sizeof(*work));
4068 wpa_dbg(wpa_s, MSG_DEBUG, "Add radio work '%s'@%p", type, work);
4069 os_get_reltime(&work->time);
4072 work->wpa_s = wpa_s;
4076 was_empty = dl_list_empty(&wpa_s->radio->work);
4078 dl_list_add(&wpa_s->radio->work, &work->list);
4080 dl_list_add_tail(&wpa_s->radio->work, &work->list);
4082 wpa_dbg(wpa_s, MSG_DEBUG, "First radio work item in the queue - schedule start immediately");
4083 radio_work_check_next(wpa_s);
4091 * radio_work_done - Indicate that a radio work item has been completed
4092 * @work: Completed work
4094 * This function is called once the callback function registered with
4095 * radio_add_work() has completed its work.
4097 void radio_work_done(struct wpa_radio_work *work)
4099 struct wpa_supplicant *wpa_s = work->wpa_s;
4100 struct os_reltime now, diff;
4101 unsigned int started = work->started;
4103 os_get_reltime(&now);
4104 os_reltime_sub(&now, &work->time, &diff);
4105 wpa_dbg(wpa_s, MSG_DEBUG, "Radio work '%s'@%p %s in %ld.%06ld seconds",
4106 work->type, work, started ? "done" : "canceled",
4107 diff.sec, diff.usec);
4108 radio_work_free(work);
4110 radio_work_check_next(wpa_s);
4114 struct wpa_radio_work *
4115 radio_work_pending(struct wpa_supplicant *wpa_s, const char *type)
4117 struct wpa_radio_work *work;
4118 struct wpa_radio *radio = wpa_s->radio;
4120 dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) {
4121 if (work->wpa_s == wpa_s && os_strcmp(work->type, type) == 0)
4129 static int wpas_init_driver(struct wpa_supplicant *wpa_s,
4130 struct wpa_interface *iface)
4132 const char *ifname, *driver, *rn;
4134 driver = iface->driver;
4136 if (wpa_supplicant_set_driver(wpa_s, driver) < 0)
4139 wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname);
4140 if (wpa_s->drv_priv == NULL) {
4142 pos = driver ? os_strchr(driver, ',') : NULL;
4144 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
4145 "driver interface - try next driver wrapper");
4149 wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver "
4153 if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) {
4154 wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected "
4155 "driver_param '%s'", wpa_s->conf->driver_param);
4159 ifname = wpa_drv_get_ifname(wpa_s);
4160 if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) {
4161 wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced "
4162 "interface name with '%s'", ifname);
4163 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
4166 rn = wpa_driver_get_radio_name(wpa_s);
4167 if (rn && rn[0] == '\0')
4170 wpa_s->radio = radio_add_interface(wpa_s, rn);
4171 if (wpa_s->radio == NULL)
4178 static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
4179 struct wpa_interface *iface)
4181 struct wpa_driver_capa capa;
4184 wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver "
4185 "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname,
4186 iface->confname ? iface->confname : "N/A",
4187 iface->driver ? iface->driver : "default",
4188 iface->ctrl_interface ? iface->ctrl_interface : "N/A",
4189 iface->bridge_ifname ? iface->bridge_ifname : "N/A");
4191 if (iface->confname) {
4192 #ifdef CONFIG_BACKEND_FILE
4193 wpa_s->confname = os_rel2abs_path(iface->confname);
4194 if (wpa_s->confname == NULL) {
4195 wpa_printf(MSG_ERROR, "Failed to get absolute path "
4196 "for configuration file '%s'.",
4200 wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'",
4201 iface->confname, wpa_s->confname);
4202 #else /* CONFIG_BACKEND_FILE */
4203 wpa_s->confname = os_strdup(iface->confname);
4204 #endif /* CONFIG_BACKEND_FILE */
4205 wpa_s->conf = wpa_config_read(wpa_s->confname, NULL);
4206 if (wpa_s->conf == NULL) {
4207 wpa_printf(MSG_ERROR, "Failed to read or parse "
4208 "configuration '%s'.", wpa_s->confname);
4211 wpa_s->confanother = os_rel2abs_path(iface->confanother);
4212 wpa_config_read(wpa_s->confanother, wpa_s->conf);
4215 * Override ctrl_interface and driver_param if set on command
4218 if (iface->ctrl_interface) {
4219 os_free(wpa_s->conf->ctrl_interface);
4220 wpa_s->conf->ctrl_interface =
4221 os_strdup(iface->ctrl_interface);
4224 if (iface->driver_param) {
4225 os_free(wpa_s->conf->driver_param);
4226 wpa_s->conf->driver_param =
4227 os_strdup(iface->driver_param);
4230 if (iface->p2p_mgmt && !iface->ctrl_interface) {
4231 os_free(wpa_s->conf->ctrl_interface);
4232 wpa_s->conf->ctrl_interface = NULL;
4235 wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface,
4236 iface->driver_param);
4238 if (wpa_s->conf == NULL) {
4239 wpa_printf(MSG_ERROR, "\nNo configuration found.");
4243 if (iface->ifname == NULL) {
4244 wpa_printf(MSG_ERROR, "\nInterface name is required.");
4247 if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) {
4248 wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.",
4252 os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname));
4254 if (iface->bridge_ifname) {
4255 if (os_strlen(iface->bridge_ifname) >=
4256 sizeof(wpa_s->bridge_ifname)) {
4257 wpa_printf(MSG_ERROR, "\nToo long bridge interface "
4258 "name '%s'.", iface->bridge_ifname);
4261 os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname,
4262 sizeof(wpa_s->bridge_ifname));
4265 /* RSNA Supplicant Key Management - INITIALIZE */
4266 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
4267 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
4269 /* Initialize driver interface and register driver event handler before
4270 * L2 receive handler so that association events are processed before
4271 * EAPOL-Key packets if both become available for the same select()
4273 if (wpas_init_driver(wpa_s, iface) < 0)
4276 if (wpa_supplicant_init_wpa(wpa_s) < 0)
4279 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname,
4280 wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname :
4282 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
4284 if (wpa_s->conf->dot11RSNAConfigPMKLifetime &&
4285 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
4286 wpa_s->conf->dot11RSNAConfigPMKLifetime)) {
4287 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4288 "dot11RSNAConfigPMKLifetime");
4292 if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold &&
4293 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
4294 wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) {
4295 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4296 "dot11RSNAConfigPMKReauthThreshold");
4300 if (wpa_s->conf->dot11RSNAConfigSATimeout &&
4301 wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT,
4302 wpa_s->conf->dot11RSNAConfigSATimeout)) {
4303 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4304 "dot11RSNAConfigSATimeout");
4308 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s,
4309 &wpa_s->hw.num_modes,
4311 if (wpa_s->hw.modes) {
4314 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4315 if (wpa_s->hw.modes[i].vht_capab) {
4316 wpa_s->hw_capab = CAPAB_VHT;
4320 if (wpa_s->hw.modes[i].ht_capab &
4321 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)
4322 wpa_s->hw_capab = CAPAB_HT40;
4323 else if (wpa_s->hw.modes[i].ht_capab &&
4324 wpa_s->hw_capab == CAPAB_NO_HT_VHT)
4325 wpa_s->hw_capab = CAPAB_HT;
4329 capa_res = wpa_drv_get_capa(wpa_s, &capa);
4330 if (capa_res == 0) {
4331 wpa_s->drv_capa_known = 1;
4332 wpa_s->drv_flags = capa.flags;
4333 wpa_s->drv_enc = capa.enc;
4334 wpa_s->drv_smps_modes = capa.smps_modes;
4335 wpa_s->drv_rrm_flags = capa.rrm_flags;
4336 wpa_s->probe_resp_offloads = capa.probe_resp_offloads;
4337 wpa_s->max_scan_ssids = capa.max_scan_ssids;
4338 wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids;
4339 wpa_s->sched_scan_supported = capa.sched_scan_supported;
4340 wpa_s->max_match_sets = capa.max_match_sets;
4341 wpa_s->max_remain_on_chan = capa.max_remain_on_chan;
4342 wpa_s->max_stations = capa.max_stations;
4343 wpa_s->extended_capa = capa.extended_capa;
4344 wpa_s->extended_capa_mask = capa.extended_capa_mask;
4345 wpa_s->extended_capa_len = capa.extended_capa_len;
4346 wpa_s->num_multichan_concurrent =
4347 capa.num_multichan_concurrent;
4348 wpa_s->wmm_ac_supported = capa.wmm_ac_supported;
4350 if (capa.mac_addr_rand_scan_supported)
4351 wpa_s->mac_addr_rand_supported |= MAC_ADDR_RAND_SCAN;
4352 if (wpa_s->sched_scan_supported &&
4353 capa.mac_addr_rand_sched_scan_supported)
4354 wpa_s->mac_addr_rand_supported |=
4355 (MAC_ADDR_RAND_SCHED_SCAN | MAC_ADDR_RAND_PNO);
4357 if (wpa_s->max_remain_on_chan == 0)
4358 wpa_s->max_remain_on_chan = 1000;
4361 * Only take p2p_mgmt parameters when P2P Device is supported.
4362 * Doing it here as it determines whether l2_packet_init() will be done
4363 * during wpa_supplicant_driver_init().
4365 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
4366 wpa_s->p2p_mgmt = iface->p2p_mgmt;
4368 iface->p2p_mgmt = 1;
4370 if (wpa_s->num_multichan_concurrent == 0)
4371 wpa_s->num_multichan_concurrent = 1;
4373 if (wpa_supplicant_driver_init(wpa_s) < 0)
4377 if ((!iface->p2p_mgmt ||
4378 !(wpa_s->drv_flags &
4379 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
4380 wpa_tdls_init(wpa_s->wpa))
4382 #endif /* CONFIG_TDLS */
4384 if (wpa_s->conf->country[0] && wpa_s->conf->country[1] &&
4385 wpa_drv_set_country(wpa_s, wpa_s->conf->country)) {
4386 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country");
4391 if (wpa_s->conf->fst_group_id) {
4392 struct fst_iface_cfg cfg;
4393 struct fst_wpa_obj iface_obj;
4395 fst_wpa_supplicant_fill_iface_obj(wpa_s, &iface_obj);
4396 os_strlcpy(cfg.group_id, wpa_s->conf->fst_group_id,
4397 sizeof(cfg.group_id));
4398 cfg.priority = wpa_s->conf->fst_priority;
4399 cfg.llt = wpa_s->conf->fst_llt;
4401 wpa_s->fst = fst_attach(wpa_s->ifname, wpa_s->own_addr,
4404 wpa_msg(wpa_s, MSG_ERROR,
4405 "FST: Cannot attach iface %s to group %s",
4406 wpa_s->ifname, cfg.group_id);
4410 #endif /* CONFIG_FST */
4412 if (wpas_wps_init(wpa_s))
4415 if (wpa_supplicant_init_eapol(wpa_s) < 0)
4417 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
4419 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
4420 if (wpa_s->ctrl_iface == NULL) {
4421 wpa_printf(MSG_ERROR,
4422 "Failed to initialize control interface '%s'.\n"
4423 "You may have another wpa_supplicant process "
4424 "already running or the file was\n"
4425 "left by an unclean termination of wpa_supplicant "
4426 "in which case you will need\n"
4427 "to manually remove this file before starting "
4428 "wpa_supplicant again.\n",
4429 wpa_s->conf->ctrl_interface);
4433 wpa_s->gas = gas_query_init(wpa_s);
4434 if (wpa_s->gas == NULL) {
4435 wpa_printf(MSG_ERROR, "Failed to initialize GAS query");
4439 if (iface->p2p_mgmt && wpas_p2p_init(wpa_s->global, wpa_s) < 0) {
4440 wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P");
4444 if (wpa_bss_init(wpa_s) < 0)
4448 * Set Wake-on-WLAN triggers, if configured.
4449 * Note: We don't restore/remove the triggers on shutdown (it doesn't
4450 * have effect anyway when the interface is down).
4452 if (capa_res == 0 && wpas_set_wowlan_triggers(wpa_s, &capa) < 0)
4455 #ifdef CONFIG_EAP_PROXY
4458 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, wpa_s->imsi,
4460 if (wpa_s->mnc_len > 0) {
4461 wpa_s->imsi[len] = '\0';
4462 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
4463 wpa_s->imsi, wpa_s->mnc_len);
4465 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
4468 #endif /* CONFIG_EAP_PROXY */
4470 if (pcsc_reader_init(wpa_s) < 0)
4473 if (wpas_init_ext_pw(wpa_s) < 0)
4476 wpas_rrm_reset(wpa_s);
4482 static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s,
4483 int notify, int terminate)
4485 struct wpa_global *global = wpa_s->global;
4486 struct wpa_supplicant *iface, *prev;
4488 if (wpa_s == wpa_s->parent)
4489 wpas_p2p_group_remove(wpa_s, "*");
4491 iface = global->ifaces;
4493 if (iface == wpa_s || iface->parent != wpa_s) {
4494 iface = iface->next;
4497 wpa_printf(MSG_DEBUG,
4498 "Remove remaining child interface %s from parent %s",
4499 iface->ifname, wpa_s->ifname);
4501 iface = iface->next;
4502 wpa_supplicant_remove_iface(global, prev, terminate);
4505 wpa_s->disconnected = 1;
4506 if (wpa_s->drv_priv) {
4507 wpa_supplicant_deauthenticate(wpa_s,
4508 WLAN_REASON_DEAUTH_LEAVING);
4510 wpa_drv_set_countermeasures(wpa_s, 0);
4511 wpa_clear_keys(wpa_s, NULL);
4514 wpa_supplicant_cleanup(wpa_s);
4515 wpas_p2p_deinit_iface(wpa_s);
4517 wpas_ctrl_radio_work_flush(wpa_s);
4518 radio_remove_interface(wpa_s);
4522 fst_detach(wpa_s->fst);
4525 if (wpa_s->received_mb_ies) {
4526 wpabuf_free(wpa_s->received_mb_ies);
4527 wpa_s->received_mb_ies = NULL;
4529 #endif /* CONFIG_FST */
4531 if (wpa_s->drv_priv)
4532 wpa_drv_deinit(wpa_s);
4535 wpas_notify_iface_removed(wpa_s);
4538 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING);
4540 if (wpa_s->ctrl_iface) {
4541 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
4542 wpa_s->ctrl_iface = NULL;
4547 wpa_supplicant_mesh_iface_deinit(wpa_s, wpa_s->ifmsh);
4548 wpa_s->ifmsh = NULL;
4550 #endif /* CONFIG_MESH */
4552 if (wpa_s->conf != NULL) {
4553 wpa_config_free(wpa_s->conf);
4557 os_free(wpa_s->ssids_from_scan_req);
4564 * wpa_supplicant_add_iface - Add a new network interface
4565 * @global: Pointer to global data from wpa_supplicant_init()
4566 * @iface: Interface configuration options
4567 * @parent: Parent interface or %NULL to assign new interface as parent
4568 * Returns: Pointer to the created interface or %NULL on failure
4570 * This function is used to add new network interfaces for %wpa_supplicant.
4571 * This can be called before wpa_supplicant_run() to add interfaces before the
4572 * main event loop has been started. In addition, new interfaces can be added
4573 * dynamically while %wpa_supplicant is already running. This could happen,
4574 * e.g., when a hotplug network adapter is inserted.
4576 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
4577 struct wpa_interface *iface,
4578 struct wpa_supplicant *parent)
4580 struct wpa_supplicant *wpa_s;
4581 struct wpa_interface t_iface;
4582 struct wpa_ssid *ssid;
4584 if (global == NULL || iface == NULL)
4587 wpa_s = wpa_supplicant_alloc(parent);
4591 wpa_s->global = global;
4594 if (global->params.override_driver) {
4595 wpa_printf(MSG_DEBUG, "Override interface parameter: driver "
4597 iface->driver, global->params.override_driver);
4598 t_iface.driver = global->params.override_driver;
4600 if (global->params.override_ctrl_interface) {
4601 wpa_printf(MSG_DEBUG, "Override interface parameter: "
4602 "ctrl_interface ('%s' -> '%s')",
4603 iface->ctrl_interface,
4604 global->params.override_ctrl_interface);
4605 t_iface.ctrl_interface =
4606 global->params.override_ctrl_interface;
4608 if (wpa_supplicant_init_iface(wpa_s, &t_iface)) {
4609 wpa_printf(MSG_DEBUG, "Failed to add interface %s",
4611 wpa_supplicant_deinit_iface(wpa_s, 0, 0);
4615 if (iface->p2p_mgmt == 0) {
4616 /* Notify the control interfaces about new iface */
4617 if (wpas_notify_iface_added(wpa_s)) {
4618 wpa_supplicant_deinit_iface(wpa_s, 1, 0);
4622 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
4623 wpas_notify_network_added(wpa_s, ssid);
4626 wpa_s->next = global->ifaces;
4627 global->ifaces = wpa_s;
4629 wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname);
4630 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
4633 if (wpa_s->global->p2p == NULL &&
4634 !wpa_s->global->p2p_disabled && !wpa_s->conf->p2p_disabled &&
4635 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4636 wpas_p2p_add_p2pdev_interface(
4637 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
4638 wpa_printf(MSG_INFO,
4639 "P2P: Failed to enable P2P Device interface");
4640 /* Try to continue without. P2P will be disabled. */
4642 #endif /* CONFIG_P2P */
4649 * wpa_supplicant_remove_iface - Remove a network interface
4650 * @global: Pointer to global data from wpa_supplicant_init()
4651 * @wpa_s: Pointer to the network interface to be removed
4652 * Returns: 0 if interface was removed, -1 if interface was not found
4654 * This function can be used to dynamically remove network interfaces from
4655 * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In
4656 * addition, this function is used to remove all remaining interfaces when
4657 * %wpa_supplicant is terminated.
4659 int wpa_supplicant_remove_iface(struct wpa_global *global,
4660 struct wpa_supplicant *wpa_s,
4663 struct wpa_supplicant *prev;
4665 unsigned int mesh_if_created = wpa_s->mesh_if_created;
4666 char *ifname = NULL;
4667 #endif /* CONFIG_MESH */
4669 /* Remove interface from the global list of interfaces */
4670 prev = global->ifaces;
4671 if (prev == wpa_s) {
4672 global->ifaces = wpa_s->next;
4674 while (prev && prev->next != wpa_s)
4678 prev->next = wpa_s->next;
4681 wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname);
4684 if (mesh_if_created) {
4685 ifname = os_strdup(wpa_s->ifname);
4686 if (ifname == NULL) {
4687 wpa_dbg(wpa_s, MSG_ERROR,
4688 "mesh: Failed to malloc ifname");
4692 #endif /* CONFIG_MESH */
4694 if (global->p2p_group_formation == wpa_s)
4695 global->p2p_group_formation = NULL;
4696 if (global->p2p_invite_group == wpa_s)
4697 global->p2p_invite_group = NULL;
4698 wpa_supplicant_deinit_iface(wpa_s, 1, terminate);
4701 if (mesh_if_created) {
4702 wpa_drv_if_remove(global->ifaces, WPA_IF_MESH, ifname);
4705 #endif /* CONFIG_MESH */
4712 * wpa_supplicant_get_eap_mode - Get the current EAP mode
4713 * @wpa_s: Pointer to the network interface
4714 * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found
4716 const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s)
4718 const char *eapol_method;
4720 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 &&
4721 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
4725 eapol_method = eapol_sm_get_method_name(wpa_s->eapol);
4726 if (eapol_method == NULL)
4727 return "UNKNOWN-EAP";
4729 return eapol_method;
4734 * wpa_supplicant_get_iface - Get a new network interface
4735 * @global: Pointer to global data from wpa_supplicant_init()
4736 * @ifname: Interface name
4737 * Returns: Pointer to the interface or %NULL if not found
4739 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
4742 struct wpa_supplicant *wpa_s;
4744 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4745 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4752 #ifndef CONFIG_NO_WPA_MSG
4753 static const char * wpa_supplicant_msg_ifname_cb(void *ctx)
4755 struct wpa_supplicant *wpa_s = ctx;
4758 return wpa_s->ifname;
4760 #endif /* CONFIG_NO_WPA_MSG */
4763 #ifndef WPA_SUPPLICANT_CLEANUP_INTERVAL
4764 #define WPA_SUPPLICANT_CLEANUP_INTERVAL 10
4765 #endif /* WPA_SUPPLICANT_CLEANUP_INTERVAL */
4767 /* Periodic cleanup tasks */
4768 static void wpas_periodic(void *eloop_ctx, void *timeout_ctx)
4770 struct wpa_global *global = eloop_ctx;
4771 struct wpa_supplicant *wpa_s;
4773 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
4774 wpas_periodic, global, NULL);
4778 p2p_expire_peers(global->p2p);
4779 #endif /* CONFIG_P2P */
4781 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4782 wpa_bss_flush_by_age(wpa_s, wpa_s->conf->bss_expiration_age);
4785 #endif /* CONFIG_AP */
4791 * wpa_supplicant_init - Initialize %wpa_supplicant
4792 * @params: Parameters for %wpa_supplicant
4793 * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure
4795 * This function is used to initialize %wpa_supplicant. After successful
4796 * initialization, the returned data pointer can be used to add and remove
4797 * network interfaces, and eventually, to deinitialize %wpa_supplicant.
4799 struct wpa_global * wpa_supplicant_init(struct wpa_params *params)
4801 struct wpa_global *global;
4807 #ifdef CONFIG_DRIVER_NDIS
4809 void driver_ndis_init_ops(void);
4810 driver_ndis_init_ops();
4812 #endif /* CONFIG_DRIVER_NDIS */
4814 #ifndef CONFIG_NO_WPA_MSG
4815 wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb);
4816 #endif /* CONFIG_NO_WPA_MSG */
4818 if (params->wpa_debug_file_path)
4819 wpa_debug_open_file(params->wpa_debug_file_path);
4821 wpa_debug_setup_stdout();
4822 if (params->wpa_debug_syslog)
4823 wpa_debug_open_syslog();
4824 if (params->wpa_debug_tracing) {
4825 ret = wpa_debug_open_linux_tracing();
4827 wpa_printf(MSG_ERROR,
4828 "Failed to enable trace logging");
4833 ret = eap_register_methods();
4835 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
4837 wpa_printf(MSG_ERROR, "Two or more EAP methods used "
4838 "the same EAP type.");
4842 global = os_zalloc(sizeof(*global));
4845 dl_list_init(&global->p2p_srv_bonjour);
4846 dl_list_init(&global->p2p_srv_upnp);
4847 global->params.daemonize = params->daemonize;
4848 global->params.wait_for_monitor = params->wait_for_monitor;
4849 global->params.dbus_ctrl_interface = params->dbus_ctrl_interface;
4850 if (params->pid_file)
4851 global->params.pid_file = os_strdup(params->pid_file);
4852 if (params->ctrl_interface)
4853 global->params.ctrl_interface =
4854 os_strdup(params->ctrl_interface);
4855 if (params->ctrl_interface_group)
4856 global->params.ctrl_interface_group =
4857 os_strdup(params->ctrl_interface_group);
4858 if (params->override_driver)
4859 global->params.override_driver =
4860 os_strdup(params->override_driver);
4861 if (params->override_ctrl_interface)
4862 global->params.override_ctrl_interface =
4863 os_strdup(params->override_ctrl_interface);
4865 if (params->conf_p2p_dev)
4866 global->params.conf_p2p_dev =
4867 os_strdup(params->conf_p2p_dev);
4868 #endif /* CONFIG_P2P */
4869 wpa_debug_level = global->params.wpa_debug_level =
4870 params->wpa_debug_level;
4871 wpa_debug_show_keys = global->params.wpa_debug_show_keys =
4872 params->wpa_debug_show_keys;
4873 wpa_debug_timestamp = global->params.wpa_debug_timestamp =
4874 params->wpa_debug_timestamp;
4876 wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR);
4879 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
4880 wpa_supplicant_deinit(global);
4884 random_init(params->entropy_file);
4886 global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global);
4887 if (global->ctrl_iface == NULL) {
4888 wpa_supplicant_deinit(global);
4892 if (wpas_notify_supplicant_initialized(global)) {
4893 wpa_supplicant_deinit(global);
4897 for (i = 0; wpa_drivers[i]; i++)
4898 global->drv_count++;
4899 if (global->drv_count == 0) {
4900 wpa_printf(MSG_ERROR, "No drivers enabled");
4901 wpa_supplicant_deinit(global);
4904 global->drv_priv = os_calloc(global->drv_count, sizeof(void *));
4905 if (global->drv_priv == NULL) {
4906 wpa_supplicant_deinit(global);
4910 #ifdef CONFIG_WIFI_DISPLAY
4911 if (wifi_display_init(global) < 0) {
4912 wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display");
4913 wpa_supplicant_deinit(global);
4916 #endif /* CONFIG_WIFI_DISPLAY */
4918 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
4919 wpas_periodic, global, NULL);
4926 * wpa_supplicant_run - Run the %wpa_supplicant main event loop
4927 * @global: Pointer to global data from wpa_supplicant_init()
4928 * Returns: 0 after successful event loop run, -1 on failure
4930 * This function starts the main event loop and continues running as long as
4931 * there are any remaining events. In most cases, this function is running as
4932 * long as the %wpa_supplicant process in still in use.
4934 int wpa_supplicant_run(struct wpa_global *global)
4936 struct wpa_supplicant *wpa_s;
4938 if (global->params.daemonize &&
4939 wpa_supplicant_daemon(global->params.pid_file))
4942 if (global->params.wait_for_monitor) {
4943 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
4944 if (wpa_s->ctrl_iface)
4945 wpa_supplicant_ctrl_iface_wait(
4949 eloop_register_signal_terminate(wpa_supplicant_terminate, global);
4950 eloop_register_signal_reconfig(wpa_supplicant_reconfig, global);
4959 * wpa_supplicant_deinit - Deinitialize %wpa_supplicant
4960 * @global: Pointer to global data from wpa_supplicant_init()
4962 * This function is called to deinitialize %wpa_supplicant and to free all
4963 * allocated resources. Remaining network interfaces will also be removed.
4965 void wpa_supplicant_deinit(struct wpa_global *global)
4972 eloop_cancel_timeout(wpas_periodic, global, NULL);
4974 #ifdef CONFIG_WIFI_DISPLAY
4975 wifi_display_deinit(global);
4976 #endif /* CONFIG_WIFI_DISPLAY */
4978 while (global->ifaces)
4979 wpa_supplicant_remove_iface(global, global->ifaces, 1);
4981 if (global->ctrl_iface)
4982 wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface);
4984 wpas_notify_supplicant_deinitialized(global);
4986 eap_peer_unregister_methods();
4988 eap_server_unregister_methods();
4989 #endif /* CONFIG_AP */
4991 for (i = 0; wpa_drivers[i] && global->drv_priv; i++) {
4992 if (!global->drv_priv[i])
4994 wpa_drivers[i]->global_deinit(global->drv_priv[i]);
4996 os_free(global->drv_priv);
5002 if (global->params.pid_file) {
5003 os_daemonize_terminate(global->params.pid_file);
5004 os_free(global->params.pid_file);
5006 os_free(global->params.ctrl_interface);
5007 os_free(global->params.ctrl_interface_group);
5008 os_free(global->params.override_driver);
5009 os_free(global->params.override_ctrl_interface);
5011 os_free(global->params.conf_p2p_dev);
5012 #endif /* CONFIG_P2P */
5014 os_free(global->p2p_disallow_freq.range);
5015 os_free(global->p2p_go_avoid_freq.range);
5016 os_free(global->add_psk);
5019 wpa_debug_close_syslog();
5020 wpa_debug_close_file();
5021 wpa_debug_close_linux_tracing();
5025 void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s)
5027 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
5028 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
5030 country[0] = wpa_s->conf->country[0];
5031 country[1] = wpa_s->conf->country[1];
5033 if (wpa_drv_set_country(wpa_s, country) < 0) {
5034 wpa_printf(MSG_ERROR, "Failed to set country code "
5039 if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND)
5040 wpas_init_ext_pw(wpa_s);
5043 wpas_wps_update_config(wpa_s);
5044 #endif /* CONFIG_WPS */
5045 wpas_p2p_update_config(wpa_s);
5046 wpa_s->conf->changed_parameters = 0;
5050 void add_freq(int *freqs, int *num_freqs, int freq)
5054 for (i = 0; i < *num_freqs; i++) {
5055 if (freqs[i] == freq)
5059 freqs[*num_freqs] = freq;
5064 static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s)
5066 struct wpa_bss *bss, *cbss;
5067 const int max_freqs = 10;
5071 freqs = os_calloc(max_freqs + 1, sizeof(int));
5075 cbss = wpa_s->current_bss;
5077 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
5080 if (bss->ssid_len == cbss->ssid_len &&
5081 os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 &&
5082 wpa_blacklist_get(wpa_s, bss->bssid) == NULL) {
5083 add_freq(freqs, &num_freqs, bss->freq);
5084 if (num_freqs == max_freqs)
5089 if (num_freqs == 0) {
5098 void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid)
5104 wpas_connect_work_done(wpa_s);
5107 * Remove possible authentication timeout since the connection failed.
5109 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
5112 * There is no point in blacklisting the AP if this event is
5113 * generated based on local request to disconnect.
5115 if (wpa_s->own_disconnect_req) {
5116 wpa_s->own_disconnect_req = 0;
5117 wpa_dbg(wpa_s, MSG_DEBUG,
5118 "Ignore connection failure due to local request to disconnect");
5121 if (wpa_s->disconnected) {
5122 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure "
5123 "indication since interface has been put into "
5124 "disconnected state");
5129 * Add the failed BSSID into the blacklist and speed up next scan
5130 * attempt if there could be other APs that could accept association.
5131 * The current blacklist count indicates how many times we have tried
5132 * connecting to this AP and multiple attempts mean that other APs are
5133 * either not available or has already been tried, so that we can start
5134 * increasing the delay here to avoid constant scanning.
5136 count = wpa_blacklist_add(wpa_s, bssid);
5137 if (count == 1 && wpa_s->current_bss) {
5139 * This BSS was not in the blacklist before. If there is
5140 * another BSS available for the same ESS, we should try that
5141 * next. Otherwise, we may as well try this one once more
5142 * before allowing other, likely worse, ESSes to be considered.
5144 freqs = get_bss_freqs_in_ess(wpa_s);
5146 wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS "
5147 "has been seen; try it next");
5148 wpa_blacklist_add(wpa_s, bssid);
5150 * On the next scan, go through only the known channels
5151 * used in this ESS based on previous scans to speed up
5152 * common load balancing use case.
5154 os_free(wpa_s->next_scan_freqs);
5155 wpa_s->next_scan_freqs = freqs;
5160 * Add previous failure count in case the temporary blacklist was
5161 * cleared due to no other BSSes being available.
5163 count += wpa_s->extra_blacklist_count;
5165 if (count > 3 && wpa_s->current_ssid) {
5166 wpa_printf(MSG_DEBUG, "Continuous association failures - "
5167 "consider temporary network disabling");
5168 wpas_auth_failed(wpa_s, "CONN_FAILED");
5189 wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d "
5190 "ms", count, timeout);
5193 * TODO: if more than one possible AP is available in scan results,
5194 * could try the other ones before requesting a new scan.
5196 wpa_supplicant_req_scan(wpa_s, timeout / 1000,
5197 1000 * (timeout % 1000));
5201 int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s)
5203 return wpa_s->conf->ap_scan == 2 ||
5204 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION);
5208 #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW)
5209 int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s,
5210 struct wpa_ssid *ssid,
5214 #ifdef IEEE8021X_EAPOL
5215 struct eap_peer_config *eap = &ssid->eap;
5217 wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field);
5218 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value",
5219 (const u8 *) value, os_strlen(value));
5221 switch (wpa_supplicant_ctrl_req_from_string(field)) {
5222 case WPA_CTRL_REQ_EAP_IDENTITY:
5223 os_free(eap->identity);
5224 eap->identity = (u8 *) os_strdup(value);
5225 eap->identity_len = os_strlen(value);
5226 eap->pending_req_identity = 0;
5227 if (ssid == wpa_s->current_ssid)
5228 wpa_s->reassociate = 1;
5230 case WPA_CTRL_REQ_EAP_PASSWORD:
5231 bin_clear_free(eap->password, eap->password_len);
5232 eap->password = (u8 *) os_strdup(value);
5233 eap->password_len = os_strlen(value);
5234 eap->pending_req_password = 0;
5235 if (ssid == wpa_s->current_ssid)
5236 wpa_s->reassociate = 1;
5238 case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
5239 bin_clear_free(eap->new_password, eap->new_password_len);
5240 eap->new_password = (u8 *) os_strdup(value);
5241 eap->new_password_len = os_strlen(value);
5242 eap->pending_req_new_password = 0;
5243 if (ssid == wpa_s->current_ssid)
5244 wpa_s->reassociate = 1;
5246 case WPA_CTRL_REQ_EAP_PIN:
5247 str_clear_free(eap->pin);
5248 eap->pin = os_strdup(value);
5249 eap->pending_req_pin = 0;
5250 if (ssid == wpa_s->current_ssid)
5251 wpa_s->reassociate = 1;
5253 case WPA_CTRL_REQ_EAP_OTP:
5254 bin_clear_free(eap->otp, eap->otp_len);
5255 eap->otp = (u8 *) os_strdup(value);
5256 eap->otp_len = os_strlen(value);
5257 os_free(eap->pending_req_otp);
5258 eap->pending_req_otp = NULL;
5259 eap->pending_req_otp_len = 0;
5261 case WPA_CTRL_REQ_EAP_PASSPHRASE:
5262 str_clear_free(eap->private_key_passwd);
5263 eap->private_key_passwd = os_strdup(value);
5264 eap->pending_req_passphrase = 0;
5265 if (ssid == wpa_s->current_ssid)
5266 wpa_s->reassociate = 1;
5268 case WPA_CTRL_REQ_SIM:
5269 str_clear_free(eap->external_sim_resp);
5270 eap->external_sim_resp = os_strdup(value);
5272 case WPA_CTRL_REQ_PSK_PASSPHRASE:
5273 if (wpa_config_set(ssid, "psk", value, 0) < 0)
5275 ssid->mem_only_psk = 1;
5276 if (ssid->passphrase)
5277 wpa_config_update_psk(ssid);
5278 if (wpa_s->wpa_state == WPA_SCANNING && !wpa_s->scanning)
5279 wpa_supplicant_req_scan(wpa_s, 0, 0);
5282 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field);
5287 #else /* IEEE8021X_EAPOL */
5288 wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included");
5290 #endif /* IEEE8021X_EAPOL */
5292 #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */
5295 int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5298 unsigned int drv_enc;
5300 if (wpa_s->p2p_mgmt)
5301 return 1; /* no normal network profiles on p2p_mgmt interface */
5309 if (wpa_s->drv_capa_known)
5310 drv_enc = wpa_s->drv_enc;
5312 drv_enc = (unsigned int) -1;
5314 for (i = 0; i < NUM_WEP_KEYS; i++) {
5315 size_t len = ssid->wep_key_len[i];
5318 if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40))
5320 if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104))
5322 if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128))
5324 return 1; /* invalid WEP key */
5327 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
5328 (!ssid->passphrase || ssid->ssid_len != 0) && !ssid->ext_psk &&
5329 !ssid->mem_only_psk)
5336 int wpas_get_ssid_pmf(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5338 #ifdef CONFIG_IEEE80211W
5339 if (ssid == NULL || ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT) {
5340 if (wpa_s->conf->pmf == MGMT_FRAME_PROTECTION_OPTIONAL &&
5341 !(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_BIP)) {
5343 * Driver does not support BIP -- ignore pmf=1 default
5344 * since the connection with PMF would fail and the
5345 * configuration does not require PMF to be enabled.
5347 return NO_MGMT_FRAME_PROTECTION;
5350 return wpa_s->conf->pmf;
5353 return ssid->ieee80211w;
5354 #else /* CONFIG_IEEE80211W */
5355 return NO_MGMT_FRAME_PROTECTION;
5356 #endif /* CONFIG_IEEE80211W */
5360 int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s)
5362 if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P)
5364 if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA)
5370 void wpas_auth_failed(struct wpa_supplicant *wpa_s, char *reason)
5372 struct wpa_ssid *ssid = wpa_s->current_ssid;
5374 struct os_reltime now;
5377 wpa_printf(MSG_DEBUG, "Authentication failure but no known "
5382 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
5385 ssid->auth_failures++;
5388 if (ssid->p2p_group &&
5389 (wpa_s->p2p_in_provisioning || wpa_s->show_group_started)) {
5391 * Skip the wait time since there is a short timeout on the
5392 * connection to a P2P group.
5396 #endif /* CONFIG_P2P */
5398 if (ssid->auth_failures > 50)
5400 else if (ssid->auth_failures > 10)
5402 else if (ssid->auth_failures > 5)
5404 else if (ssid->auth_failures > 3)
5406 else if (ssid->auth_failures > 2)
5408 else if (ssid->auth_failures > 1)
5413 if (ssid->auth_failures > 1 &&
5414 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt))
5415 dur += os_random() % (ssid->auth_failures * 10);
5417 os_get_reltime(&now);
5418 if (now.sec + dur <= ssid->disabled_until.sec)
5421 ssid->disabled_until.sec = now.sec + dur;
5423 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED
5424 "id=%d ssid=\"%s\" auth_failures=%u duration=%d reason=%s",
5425 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
5426 ssid->auth_failures, dur, reason);
5430 void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s,
5431 struct wpa_ssid *ssid, int clear_failures)
5436 if (ssid->disabled_until.sec) {
5437 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED
5438 "id=%d ssid=\"%s\"",
5439 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
5441 ssid->disabled_until.sec = 0;
5442 ssid->disabled_until.usec = 0;
5444 ssid->auth_failures = 0;
5448 int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid)
5452 if (wpa_s->disallow_aps_bssid == NULL)
5455 for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) {
5456 if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN,
5457 bssid, ETH_ALEN) == 0)
5465 int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid,
5470 if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL)
5473 for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) {
5474 struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i];
5475 if (ssid_len == s->ssid_len &&
5476 os_memcmp(ssid, s->ssid, ssid_len) == 0)
5485 * wpas_request_connection - Request a new connection
5486 * @wpa_s: Pointer to the network interface
5488 * This function is used to request a new connection to be found. It will mark
5489 * the interface to allow reassociation and request a new scan to find a
5490 * suitable network to connect to.
5492 void wpas_request_connection(struct wpa_supplicant *wpa_s)
5494 wpa_s->normal_scans = 0;
5495 wpa_s->scan_req = NORMAL_SCAN_REQ;
5496 wpa_supplicant_reinit_autoscan(wpa_s);
5497 wpa_s->extra_blacklist_count = 0;
5498 wpa_s->disconnected = 0;
5499 wpa_s->reassociate = 1;
5501 if (wpa_supplicant_fast_associate(wpa_s) != 1)
5502 wpa_supplicant_req_scan(wpa_s, 0, 0);
5504 wpa_s->reattach = 0;
5508 void dump_freq_data(struct wpa_supplicant *wpa_s, const char *title,
5509 struct wpa_used_freq_data *freqs_data,
5514 wpa_dbg(wpa_s, MSG_DEBUG, "Shared frequencies (len=%u): %s",
5516 for (i = 0; i < len; i++) {
5517 struct wpa_used_freq_data *cur = &freqs_data[i];
5518 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d, flags=0x%X",
5519 i, cur->freq, cur->flags);
5525 * Find the operating frequencies of any of the virtual interfaces that
5526 * are using the same radio as the current interface, and in addition, get
5527 * information about the interface types that are using the frequency.
5529 int get_shared_radio_freqs_data(struct wpa_supplicant *wpa_s,
5530 struct wpa_used_freq_data *freqs_data,
5533 struct wpa_supplicant *ifs;
5536 unsigned int idx = 0, i;
5538 wpa_dbg(wpa_s, MSG_DEBUG,
5539 "Determining shared radio frequencies (max len %u)", len);
5540 os_memset(freqs_data, 0, sizeof(struct wpa_used_freq_data) * len);
5542 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
5547 if (ifs->current_ssid == NULL || ifs->assoc_freq == 0)
5550 if (ifs->current_ssid->mode == WPAS_MODE_AP ||
5551 ifs->current_ssid->mode == WPAS_MODE_P2P_GO)
5552 freq = ifs->current_ssid->frequency;
5553 else if (wpa_drv_get_bssid(ifs, bssid) == 0)
5554 freq = ifs->assoc_freq;
5558 /* Hold only distinct freqs */
5559 for (i = 0; i < idx; i++)
5560 if (freqs_data[i].freq == freq)
5564 freqs_data[idx++].freq = freq;
5566 if (ifs->current_ssid->mode == WPAS_MODE_INFRA) {
5567 freqs_data[i].flags = ifs->current_ssid->p2p_group ?
5568 WPA_FREQ_USED_BY_P2P_CLIENT :
5569 WPA_FREQ_USED_BY_INFRA_STATION;
5573 dump_freq_data(wpa_s, "completed iteration", freqs_data, idx);
5579 * Find the operating frequencies of any of the virtual interfaces that
5580 * are using the same radio as the current interface.
5582 int get_shared_radio_freqs(struct wpa_supplicant *wpa_s,
5583 int *freq_array, unsigned int len)
5585 struct wpa_used_freq_data *freqs_data;
5588 os_memset(freq_array, 0, sizeof(int) * len);
5590 freqs_data = os_calloc(len, sizeof(struct wpa_used_freq_data));
5594 num = get_shared_radio_freqs_data(wpa_s, freqs_data, len);
5595 for (i = 0; i < num; i++)
5596 freq_array[i] = freqs_data[i].freq;
5598 os_free(freqs_data);
5604 static void wpas_rrm_neighbor_rep_timeout_handler(void *data, void *user_ctx)
5606 struct rrm_data *rrm = data;
5608 if (!rrm->notify_neighbor_rep) {
5609 wpa_printf(MSG_ERROR,
5610 "RRM: Unexpected neighbor report timeout");
5614 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report - NONE");
5615 rrm->notify_neighbor_rep(rrm->neighbor_rep_cb_ctx, NULL);
5617 rrm->notify_neighbor_rep = NULL;
5618 rrm->neighbor_rep_cb_ctx = NULL;
5623 * wpas_rrm_reset - Clear and reset all RRM data in wpa_supplicant
5624 * @wpa_s: Pointer to wpa_supplicant
5626 void wpas_rrm_reset(struct wpa_supplicant *wpa_s)
5628 wpa_s->rrm.rrm_used = 0;
5630 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
5632 if (wpa_s->rrm.notify_neighbor_rep)
5633 wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL);
5634 wpa_s->rrm.next_neighbor_rep_token = 1;
5639 * wpas_rrm_process_neighbor_rep - Handle incoming neighbor report
5640 * @wpa_s: Pointer to wpa_supplicant
5641 * @report: Neighbor report buffer, prefixed by a 1-byte dialog token
5642 * @report_len: Length of neighbor report buffer
5644 void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
5645 const u8 *report, size_t report_len)
5647 struct wpabuf *neighbor_rep;
5649 wpa_hexdump(MSG_DEBUG, "RRM: New Neighbor Report", report, report_len);
5653 if (report[0] != wpa_s->rrm.next_neighbor_rep_token - 1) {
5654 wpa_printf(MSG_DEBUG,
5655 "RRM: Discarding neighbor report with token %d (expected %d)",
5656 report[0], wpa_s->rrm.next_neighbor_rep_token - 1);
5660 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
5663 if (!wpa_s->rrm.notify_neighbor_rep) {
5664 wpa_printf(MSG_ERROR, "RRM: Unexpected neighbor report");
5668 /* skipping the first byte, which is only an id (dialog token) */
5669 neighbor_rep = wpabuf_alloc(report_len - 1);
5670 if (neighbor_rep == NULL)
5672 wpabuf_put_data(neighbor_rep, report + 1, report_len - 1);
5673 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report (token = %d)",
5675 wpa_s->rrm.notify_neighbor_rep(wpa_s->rrm.neighbor_rep_cb_ctx,
5677 wpa_s->rrm.notify_neighbor_rep = NULL;
5678 wpa_s->rrm.neighbor_rep_cb_ctx = NULL;
5682 #if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
5683 /* Workaround different, undefined for Windows, error codes used here */
5685 #define EOPNOTSUPP -1
5686 #define ECANCELED -1
5690 * wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP
5691 * @wpa_s: Pointer to wpa_supplicant
5692 * @ssid: if not null, this is sent in the request. Otherwise, no SSID IE
5693 * is sent in the request.
5694 * @cb: Callback function to be called once the requested report arrives, or
5695 * timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds.
5696 * In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's
5697 * the requester's responsibility to free it.
5698 * In the latter case NULL will be sent in 'neighbor_rep'.
5699 * @cb_ctx: Context value to send the callback function
5700 * Returns: 0 in case of success, negative error code otherwise
5702 * In case there is a previous request which has not been answered yet, the
5703 * new request fails. The caller may retry after RRM_NEIGHBOR_REPORT_TIMEOUT.
5704 * Request must contain a callback function.
5706 int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
5707 const struct wpa_ssid *ssid,
5708 void (*cb)(void *ctx,
5709 struct wpabuf *neighbor_rep),
5715 if (wpa_s->wpa_state != WPA_COMPLETED || wpa_s->current_ssid == NULL) {
5716 wpa_printf(MSG_DEBUG, "RRM: No connection, no RRM.");
5720 if (!wpa_s->rrm.rrm_used) {
5721 wpa_printf(MSG_DEBUG, "RRM: No RRM in current connection.");
5725 rrm_ie = wpa_bss_get_ie(wpa_s->current_bss,
5726 WLAN_EID_RRM_ENABLED_CAPABILITIES);
5727 if (!rrm_ie || !(wpa_s->current_bss->caps & IEEE80211_CAP_RRM) ||
5728 !(rrm_ie[2] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
5729 wpa_printf(MSG_DEBUG,
5730 "RRM: No network support for Neighbor Report.");
5735 wpa_printf(MSG_DEBUG,
5736 "RRM: Neighbor Report request must provide a callback.");
5740 /* Refuse if there's a live request */
5741 if (wpa_s->rrm.notify_neighbor_rep) {
5742 wpa_printf(MSG_DEBUG,
5743 "RRM: Currently handling previous Neighbor Report.");
5747 /* 3 = action category + action code + dialog token */
5748 buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0));
5750 wpa_printf(MSG_DEBUG,
5751 "RRM: Failed to allocate Neighbor Report Request");
5755 wpa_printf(MSG_DEBUG, "RRM: Neighbor report request (for %s), token=%d",
5756 (ssid ? wpa_ssid_txt(ssid->ssid, ssid->ssid_len) : ""),
5757 wpa_s->rrm.next_neighbor_rep_token);
5759 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
5760 wpabuf_put_u8(buf, WLAN_RRM_NEIGHBOR_REPORT_REQUEST);
5761 wpabuf_put_u8(buf, wpa_s->rrm.next_neighbor_rep_token);
5763 wpabuf_put_u8(buf, WLAN_EID_SSID);
5764 wpabuf_put_u8(buf, ssid->ssid_len);
5765 wpabuf_put_data(buf, ssid->ssid, ssid->ssid_len);
5768 wpa_s->rrm.next_neighbor_rep_token++;
5770 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
5771 wpa_s->own_addr, wpa_s->bssid,
5772 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
5773 wpa_printf(MSG_DEBUG,
5774 "RRM: Failed to send Neighbor Report Request");
5779 wpa_s->rrm.neighbor_rep_cb_ctx = cb_ctx;
5780 wpa_s->rrm.notify_neighbor_rep = cb;
5781 eloop_register_timeout(RRM_NEIGHBOR_REPORT_TIMEOUT, 0,
5782 wpas_rrm_neighbor_rep_timeout_handler,
5790 void wpas_rrm_handle_link_measurement_request(struct wpa_supplicant *wpa_s,
5792 const u8 *frame, size_t len,
5796 const struct rrm_link_measurement_request *req;
5797 struct rrm_link_measurement_report report;
5799 if (wpa_s->wpa_state != WPA_COMPLETED) {
5800 wpa_printf(MSG_INFO,
5801 "RRM: Ignoring link measurement request. Not associated");
5805 if (!wpa_s->rrm.rrm_used) {
5806 wpa_printf(MSG_INFO,
5807 "RRM: Ignoring link measurement request. Not RRM network");
5811 if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)) {
5812 wpa_printf(MSG_INFO,
5813 "RRM: Measurement report failed. TX power insertion not supported");
5817 req = (const struct rrm_link_measurement_request *) frame;
5818 if (len < sizeof(*req)) {
5819 wpa_printf(MSG_INFO,
5820 "RRM: Link measurement report failed. Request too short");
5824 os_memset(&report, 0, sizeof(report));
5825 report.tpc.eid = WLAN_EID_TPC_REPORT;
5827 report.rsni = 255; /* 255 indicates that RSNI is not available */
5828 report.dialog_token = req->dialog_token;
5831 * It's possible to estimate RCPI based on RSSI in dBm. This
5832 * calculation will not reflect the correct value for high rates,
5833 * but it's good enough for Action frames which are transmitted
5834 * with up to 24 Mbps rates.
5837 report.rcpi = 255; /* not available */
5838 else if (rssi < -110)
5843 report.rcpi = (rssi + 110) * 2;
5845 /* action_category + action_code */
5846 buf = wpabuf_alloc(2 + sizeof(report));
5848 wpa_printf(MSG_ERROR,
5849 "RRM: Link measurement report failed. Buffer allocation failed");
5853 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
5854 wpabuf_put_u8(buf, WLAN_RRM_LINK_MEASUREMENT_REPORT);
5855 wpabuf_put_data(buf, &report, sizeof(report));
5856 wpa_hexdump(MSG_DEBUG, "RRM: Link measurement report:",
5857 wpabuf_head(buf), wpabuf_len(buf));
5859 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
5860 wpa_s->own_addr, wpa_s->bssid,
5861 wpabuf_head(buf), wpabuf_len(buf), 0)) {
5862 wpa_printf(MSG_ERROR,
5863 "RRM: Link measurement report failed. Send action failed");