3 * Copyright (c) 2003-2016, 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.
14 #ifdef CONFIG_MATCH_IFACE
17 #endif /* CONFIG_MATCH_IFACE */
20 #include "crypto/random.h"
21 #include "crypto/sha1.h"
22 #include "eapol_supp/eapol_supp_sm.h"
23 #include "eap_peer/eap.h"
24 #include "eap_peer/eap_proxy.h"
25 #include "eap_server/eap_methods.h"
26 #include "rsn_supp/wpa.h"
29 #include "utils/ext_password.h"
30 #include "l2_packet/l2_packet.h"
31 #include "wpa_supplicant_i.h"
33 #include "ctrl_iface.h"
34 #include "pcsc_funcs.h"
35 #include "common/version.h"
36 #include "rsn_supp/preauth.h"
37 #include "rsn_supp/pmksa_cache.h"
38 #include "common/wpa_ctrl.h"
39 #include "common/ieee802_11_defs.h"
40 #include "common/hw_features_common.h"
43 #include "blacklist.h"
44 #include "wpas_glue.h"
45 #include "wps_supplicant.h"
48 #include "gas_query.h"
50 #include "p2p_supplicant.h"
51 #include "wifi_display.h"
57 #include "offchannel.h"
58 #include "hs20_supplicant.h"
63 const char *const wpa_supplicant_version =
64 "wpa_supplicant v" VERSION_STR "\n"
65 "Copyright (c) 2003-2016, Jouni Malinen <j@w1.fi> and contributors";
67 const char *const wpa_supplicant_license =
68 "This software may be distributed under the terms of the BSD license.\n"
69 "See README for more details.\n"
70 #ifdef EAP_TLS_OPENSSL
71 "\nThis product includes software developed by the OpenSSL Project\n"
72 "for use in the OpenSSL Toolkit (http://www.openssl.org/)\n"
73 #endif /* EAP_TLS_OPENSSL */
76 #ifndef CONFIG_NO_STDOUT_DEBUG
77 /* Long text divided into parts in order to fit in C89 strings size limits. */
78 const char *const wpa_supplicant_full_license1 =
80 const char *const wpa_supplicant_full_license2 =
81 "This software may be distributed under the terms of the BSD license.\n"
83 "Redistribution and use in source and binary forms, with or without\n"
84 "modification, are permitted provided that the following conditions are\n"
87 const char *const wpa_supplicant_full_license3 =
88 "1. Redistributions of source code must retain the above copyright\n"
89 " notice, this list of conditions and the following disclaimer.\n"
91 "2. Redistributions in binary form must reproduce the above copyright\n"
92 " notice, this list of conditions and the following disclaimer in the\n"
93 " documentation and/or other materials provided with the distribution.\n"
95 const char *const wpa_supplicant_full_license4 =
96 "3. Neither the name(s) of the above-listed copyright holder(s) nor the\n"
97 " names of its contributors may be used to endorse or promote products\n"
98 " derived from this software without specific prior written permission.\n"
100 "THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"
101 "\"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"
102 "LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"
103 "A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n";
104 const char *const wpa_supplicant_full_license5 =
105 "OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"
106 "SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"
107 "LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"
108 "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"
109 "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
110 "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"
111 "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
113 #endif /* CONFIG_NO_STDOUT_DEBUG */
115 /* Configure default/group WEP keys for static WEP */
116 int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
120 for (i = 0; i < NUM_WEP_KEYS; i++) {
121 if (ssid->wep_key_len[i] == 0)
125 wpa_drv_set_key(wpa_s, WPA_ALG_WEP, NULL,
126 i, i == ssid->wep_tx_keyidx, NULL, 0,
127 ssid->wep_key[i], ssid->wep_key_len[i]);
134 int wpa_supplicant_set_wpa_none_key(struct wpa_supplicant *wpa_s,
135 struct wpa_ssid *ssid)
143 /* IBSS/WPA-None uses only one key (Group) for both receiving and
144 * sending unicast and multicast packets. */
146 if (ssid->mode != WPAS_MODE_IBSS) {
147 wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid mode %d (not "
148 "IBSS/ad-hoc) for WPA-None", ssid->mode);
152 if (!ssid->psk_set) {
153 wpa_msg(wpa_s, MSG_INFO, "WPA: No PSK configured for "
158 switch (wpa_s->group_cipher) {
159 case WPA_CIPHER_CCMP:
160 os_memcpy(key, ssid->psk, 16);
164 case WPA_CIPHER_GCMP:
165 os_memcpy(key, ssid->psk, 16);
169 case WPA_CIPHER_TKIP:
170 /* WPA-None uses the same Michael MIC key for both TX and RX */
171 os_memcpy(key, ssid->psk, 16 + 8);
172 os_memcpy(key + 16 + 8, ssid->psk + 16, 8);
177 wpa_msg(wpa_s, MSG_INFO, "WPA: Invalid group cipher %d for "
178 "WPA-None", wpa_s->group_cipher);
182 /* TODO: should actually remember the previously used seq#, both for TX
183 * and RX from each STA.. */
185 ret = wpa_drv_set_key(wpa_s, alg, NULL, 0, 1, seq, 6, key, keylen);
186 os_memset(key, 0, sizeof(key));
191 static void wpa_supplicant_timeout(void *eloop_ctx, void *timeout_ctx)
193 struct wpa_supplicant *wpa_s = eloop_ctx;
194 const u8 *bssid = wpa_s->bssid;
195 if (!is_zero_ether_addr(wpa_s->pending_bssid) &&
196 (wpa_s->wpa_state == WPA_AUTHENTICATING ||
197 wpa_s->wpa_state == WPA_ASSOCIATING))
198 bssid = wpa_s->pending_bssid;
199 wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.",
201 wpa_blacklist_add(wpa_s, bssid);
202 wpa_sm_notify_disassoc(wpa_s->wpa);
203 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
204 wpa_s->reassociate = 1;
207 * If we timed out, the AP or the local radio may be busy.
208 * So, wait a second until scanning again.
210 wpa_supplicant_req_scan(wpa_s, 1, 0);
215 * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication
216 * @wpa_s: Pointer to wpa_supplicant data
217 * @sec: Number of seconds after which to time out authentication
218 * @usec: Number of microseconds after which to time out authentication
220 * This function is used to schedule a timeout for the current authentication
223 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
226 if (wpa_s->conf->ap_scan == 0 &&
227 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED))
230 wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec "
231 "%d usec", sec, usec);
232 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
233 eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL);
238 * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout
239 * @wpa_s: Pointer to wpa_supplicant data
241 * This function is used to cancel authentication timeout scheduled with
242 * wpa_supplicant_req_auth_timeout() and it is called when authentication has
245 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s)
247 wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout");
248 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
249 wpa_blacklist_del(wpa_s, wpa_s->bssid);
254 * wpa_supplicant_initiate_eapol - Configure EAPOL state machine
255 * @wpa_s: Pointer to wpa_supplicant data
257 * This function is used to configure EAPOL state machine based on the selected
258 * authentication mode.
260 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s)
262 #ifdef IEEE8021X_EAPOL
263 struct eapol_config eapol_conf;
264 struct wpa_ssid *ssid = wpa_s->current_ssid;
266 #ifdef CONFIG_IBSS_RSN
267 if (ssid->mode == WPAS_MODE_IBSS &&
268 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
269 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
271 * RSN IBSS authentication is per-STA and we can disable the
272 * per-BSSID EAPOL authentication.
274 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
275 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
276 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
279 #endif /* CONFIG_IBSS_RSN */
281 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
282 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
284 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
285 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
286 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
288 eapol_sm_notify_portControl(wpa_s->eapol, Auto);
290 os_memset(&eapol_conf, 0, sizeof(eapol_conf));
291 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
292 eapol_conf.accept_802_1x_keys = 1;
293 eapol_conf.required_keys = 0;
294 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) {
295 eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST;
297 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) {
298 eapol_conf.required_keys |=
299 EAPOL_REQUIRE_KEY_BROADCAST;
302 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)
303 eapol_conf.required_keys = 0;
305 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
306 eapol_conf.workaround = ssid->eap_workaround;
307 eapol_conf.eap_disabled =
308 !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
309 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
310 wpa_s->key_mgmt != WPA_KEY_MGMT_WPS;
311 eapol_conf.external_sim = wpa_s->conf->external_sim;
314 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
315 eapol_conf.wps |= EAPOL_LOCAL_WPS_IN_USE;
316 if (wpa_s->current_bss) {
318 ie = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
323 EAPOL_PEER_IS_WPS20_AP;
328 #endif /* CONFIG_WPS */
330 eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
332 ieee802_1x_alloc_kay_sm(wpa_s, ssid);
333 #endif /* IEEE8021X_EAPOL */
338 * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode
339 * @wpa_s: Pointer to wpa_supplicant data
340 * @ssid: Configuration data for the network
342 * This function is used to configure WPA state machine and related parameters
343 * to a mode where WPA is not enabled. This is called as part of the
344 * authentication configuration when the selected network does not use WPA.
346 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
347 struct wpa_ssid *ssid)
351 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
352 wpa_s->key_mgmt = WPA_KEY_MGMT_WPS;
353 else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)
354 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
356 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
357 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
358 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
359 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
360 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
361 wpa_s->group_cipher = WPA_CIPHER_NONE;
362 wpa_s->mgmt_group_cipher = 0;
364 for (i = 0; i < NUM_WEP_KEYS; i++) {
365 if (ssid->wep_key_len[i] > 5) {
366 wpa_s->pairwise_cipher = WPA_CIPHER_WEP104;
367 wpa_s->group_cipher = WPA_CIPHER_WEP104;
369 } else if (ssid->wep_key_len[i] > 0) {
370 wpa_s->pairwise_cipher = WPA_CIPHER_WEP40;
371 wpa_s->group_cipher = WPA_CIPHER_WEP40;
376 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0);
377 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
378 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
379 wpa_s->pairwise_cipher);
380 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
381 #ifdef CONFIG_IEEE80211W
382 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
383 wpa_s->mgmt_group_cipher);
384 #endif /* CONFIG_IEEE80211W */
386 pmksa_cache_clear_current(wpa_s->wpa);
390 void free_hw_features(struct wpa_supplicant *wpa_s)
393 if (wpa_s->hw.modes == NULL)
396 for (i = 0; i < wpa_s->hw.num_modes; i++) {
397 os_free(wpa_s->hw.modes[i].channels);
398 os_free(wpa_s->hw.modes[i].rates);
401 os_free(wpa_s->hw.modes);
402 wpa_s->hw.modes = NULL;
406 static void free_bss_tmp_disallowed(struct wpa_supplicant *wpa_s)
408 struct wpa_bss_tmp_disallowed *bss, *prev;
410 dl_list_for_each_safe(bss, prev, &wpa_s->bss_tmp_disallowed,
411 struct wpa_bss_tmp_disallowed, list) {
412 dl_list_del(&bss->list);
418 static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
422 bgscan_deinit(wpa_s);
423 autoscan_deinit(wpa_s);
424 scard_deinit(wpa_s->scard);
426 wpa_sm_set_scard_ctx(wpa_s->wpa, NULL);
427 eapol_sm_register_scard_ctx(wpa_s->eapol, NULL);
428 l2_packet_deinit(wpa_s->l2);
431 l2_packet_deinit(wpa_s->l2_br);
434 #ifdef CONFIG_TESTING_OPTIONS
435 l2_packet_deinit(wpa_s->l2_test);
436 wpa_s->l2_test = NULL;
437 #endif /* CONFIG_TESTING_OPTIONS */
439 if (wpa_s->conf != NULL) {
440 struct wpa_ssid *ssid;
441 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
442 wpas_notify_network_removed(wpa_s, ssid);
445 os_free(wpa_s->confname);
446 wpa_s->confname = NULL;
448 os_free(wpa_s->confanother);
449 wpa_s->confanother = NULL;
451 wpa_sm_set_eapol(wpa_s->wpa, NULL);
452 eapol_sm_deinit(wpa_s->eapol);
455 rsn_preauth_deinit(wpa_s->wpa);
458 wpa_tdls_deinit(wpa_s->wpa);
459 #endif /* CONFIG_TDLS */
461 wmm_ac_clear_saved_tspecs(wpa_s);
462 pmksa_candidate_free(wpa_s->wpa);
463 wpa_sm_deinit(wpa_s->wpa);
465 wpa_blacklist_clear(wpa_s);
467 wpa_bss_deinit(wpa_s);
469 wpa_supplicant_cancel_delayed_sched_scan(wpa_s);
470 wpa_supplicant_cancel_scan(wpa_s);
471 wpa_supplicant_cancel_auth_timeout(wpa_s);
472 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL);
473 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
474 eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report,
476 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
478 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
480 wpas_wps_deinit(wpa_s);
482 wpabuf_free(wpa_s->pending_eapol_rx);
483 wpa_s->pending_eapol_rx = NULL;
485 #ifdef CONFIG_IBSS_RSN
486 ibss_rsn_deinit(wpa_s->ibss_rsn);
487 wpa_s->ibss_rsn = NULL;
488 #endif /* CONFIG_IBSS_RSN */
493 wpa_supplicant_ap_deinit(wpa_s);
494 #endif /* CONFIG_AP */
496 wpas_p2p_deinit(wpa_s);
498 #ifdef CONFIG_OFFCHANNEL
499 offchannel_deinit(wpa_s);
500 #endif /* CONFIG_OFFCHANNEL */
502 wpa_supplicant_cancel_sched_scan(wpa_s);
504 os_free(wpa_s->next_scan_freqs);
505 wpa_s->next_scan_freqs = NULL;
507 os_free(wpa_s->manual_scan_freqs);
508 wpa_s->manual_scan_freqs = NULL;
510 os_free(wpa_s->manual_sched_scan_freqs);
511 wpa_s->manual_sched_scan_freqs = NULL;
513 wpas_mac_addr_rand_scan_clear(wpa_s, MAC_ADDR_RAND_ALL);
516 * Need to remove any pending gas-query radio work before the
517 * gas_query_deinit() call because gas_query::work has not yet been set
518 * for works that have not been started. gas_query_free() will be unable
519 * to cancel such pending radio works and once the pending gas-query
520 * radio work eventually gets removed, the deinit notification call to
521 * gas_query_start_cb() would result in dereferencing freed memory.
524 radio_remove_works(wpa_s, "gas-query", 0);
525 gas_query_deinit(wpa_s->gas);
528 free_hw_features(wpa_s);
530 ieee802_1x_dealloc_kay_sm(wpa_s);
532 os_free(wpa_s->bssid_filter);
533 wpa_s->bssid_filter = NULL;
535 os_free(wpa_s->disallow_aps_bssid);
536 wpa_s->disallow_aps_bssid = NULL;
537 os_free(wpa_s->disallow_aps_ssid);
538 wpa_s->disallow_aps_ssid = NULL;
540 wnm_bss_keep_alive_deinit(wpa_s);
542 wnm_deallocate_memory(wpa_s);
543 #endif /* CONFIG_WNM */
545 ext_password_deinit(wpa_s->ext_pw);
546 wpa_s->ext_pw = NULL;
548 wpabuf_free(wpa_s->last_gas_resp);
549 wpa_s->last_gas_resp = NULL;
550 wpabuf_free(wpa_s->prev_gas_resp);
551 wpa_s->prev_gas_resp = NULL;
553 os_free(wpa_s->last_scan_res);
554 wpa_s->last_scan_res = NULL;
558 wpa_drv_configure_frame_filters(wpa_s, 0);
560 #endif /* CONFIG_HS20 */
562 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) {
563 wpabuf_free(wpa_s->vendor_elem[i]);
564 wpa_s->vendor_elem[i] = NULL;
567 wmm_ac_notify_disassoc(wpa_s);
569 wpa_s->sched_scan_plans_num = 0;
570 os_free(wpa_s->sched_scan_plans);
571 wpa_s->sched_scan_plans = NULL;
574 wpa_s->non_pref_chan_num = 0;
575 os_free(wpa_s->non_pref_chan);
576 wpa_s->non_pref_chan = NULL;
577 #endif /* CONFIG_MBO */
579 free_bss_tmp_disallowed(wpa_s);
581 wpabuf_free(wpa_s->lci);
587 * wpa_clear_keys - Clear keys configured for the driver
588 * @wpa_s: Pointer to wpa_supplicant data
589 * @addr: Previously used BSSID or %NULL if not available
591 * This function clears the encryption keys that has been previously configured
594 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr)
598 #ifdef CONFIG_IEEE80211W
600 #else /* CONFIG_IEEE80211W */
602 #endif /* CONFIG_IEEE80211W */
604 /* MLME-DELETEKEYS.request */
605 for (i = 0; i < max; i++) {
606 if (wpa_s->keys_cleared & BIT(i))
608 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, i, 0, NULL, 0,
611 if (!(wpa_s->keys_cleared & BIT(0)) && addr &&
612 !is_zero_ether_addr(addr)) {
613 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL,
615 /* MLME-SETPROTECTION.request(None) */
616 wpa_drv_mlme_setprotection(
618 MLME_SETPROTECTION_PROTECT_TYPE_NONE,
619 MLME_SETPROTECTION_KEY_TYPE_PAIRWISE);
621 wpa_s->keys_cleared = (u32) -1;
626 * wpa_supplicant_state_txt - Get the connection state name as a text string
627 * @state: State (wpa_state; WPA_*)
628 * Returns: The state name as a printable text string
630 const char * wpa_supplicant_state_txt(enum wpa_states state)
633 case WPA_DISCONNECTED:
634 return "DISCONNECTED";
637 case WPA_INTERFACE_DISABLED:
638 return "INTERFACE_DISABLED";
641 case WPA_AUTHENTICATING:
642 return "AUTHENTICATING";
643 case WPA_ASSOCIATING:
644 return "ASSOCIATING";
647 case WPA_4WAY_HANDSHAKE:
648 return "4WAY_HANDSHAKE";
649 case WPA_GROUP_HANDSHAKE:
650 return "GROUP_HANDSHAKE";
661 static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s)
665 if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan)
666 name = wpa_s->current_ssid->bgscan;
668 name = wpa_s->conf->bgscan;
669 if (name == NULL || name[0] == '\0')
671 if (wpas_driver_bss_selection(wpa_s))
673 if (wpa_s->current_ssid == wpa_s->bgscan_ssid)
676 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
678 #endif /* CONFIG_P2P */
680 bgscan_deinit(wpa_s);
681 if (wpa_s->current_ssid) {
682 if (bgscan_init(wpa_s, wpa_s->current_ssid, name)) {
683 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
686 * Live without bgscan; it is only used as a roaming
687 * optimization, so the initial connection is not
691 struct wpa_scan_results *scan_res;
692 wpa_s->bgscan_ssid = wpa_s->current_ssid;
693 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL,
696 bgscan_notify_scan(wpa_s, scan_res);
697 wpa_scan_results_free(scan_res);
701 wpa_s->bgscan_ssid = NULL;
705 static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s)
707 if (wpa_s->bgscan_ssid != NULL) {
708 bgscan_deinit(wpa_s);
709 wpa_s->bgscan_ssid = NULL;
713 #endif /* CONFIG_BGSCAN */
716 static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s)
718 if (autoscan_init(wpa_s, 0))
719 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan");
723 static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s)
725 autoscan_deinit(wpa_s);
729 void wpa_supplicant_reinit_autoscan(struct wpa_supplicant *wpa_s)
731 if (wpa_s->wpa_state == WPA_DISCONNECTED ||
732 wpa_s->wpa_state == WPA_SCANNING) {
733 autoscan_deinit(wpa_s);
734 wpa_supplicant_start_autoscan(wpa_s);
740 * wpa_supplicant_set_state - Set current connection state
741 * @wpa_s: Pointer to wpa_supplicant data
742 * @state: The new connection state
744 * This function is called whenever the connection state changes, e.g.,
745 * association is completed for WPA/WPA2 4-Way Handshake is started.
747 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
748 enum wpa_states state)
750 enum wpa_states old_state = wpa_s->wpa_state;
752 wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s",
753 wpa_supplicant_state_txt(wpa_s->wpa_state),
754 wpa_supplicant_state_txt(state));
756 if (state == WPA_INTERFACE_DISABLED) {
757 /* Assure normal scan when interface is restored */
758 wpa_s->normal_scans = 0;
761 if (state == WPA_COMPLETED) {
762 wpas_connect_work_done(wpa_s);
763 /* Reinitialize normal_scan counter */
764 wpa_s->normal_scans = 0;
769 * P2PS client has to reply to Probe Request frames received on the
770 * group operating channel. Enable Probe Request frame reporting for
771 * P2P connected client in case p2p_cli_probe configuration property is
774 if (wpa_s->conf->p2p_cli_probe && wpa_s->current_ssid &&
775 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
776 wpa_s->current_ssid->p2p_group) {
777 if (state == WPA_COMPLETED && !wpa_s->p2p_cli_probe) {
778 wpa_dbg(wpa_s, MSG_DEBUG,
779 "P2P: Enable CLI Probe Request RX reporting");
780 wpa_s->p2p_cli_probe =
781 wpa_drv_probe_req_report(wpa_s, 1) >= 0;
782 } else if (state != WPA_COMPLETED && wpa_s->p2p_cli_probe) {
783 wpa_dbg(wpa_s, MSG_DEBUG,
784 "P2P: Disable CLI Probe Request RX reporting");
785 wpa_s->p2p_cli_probe = 0;
786 wpa_drv_probe_req_report(wpa_s, 0);
789 #endif /* CONFIG_P2P */
791 if (state != WPA_SCANNING)
792 wpa_supplicant_notify_scanning(wpa_s, 0);
794 if (state == WPA_COMPLETED && wpa_s->new_connection) {
795 struct wpa_ssid *ssid = wpa_s->current_ssid;
796 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
797 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to "
798 MACSTR " completed [id=%d id_str=%s]",
799 MAC2STR(wpa_s->bssid),
800 ssid ? ssid->id : -1,
801 ssid && ssid->id_str ? ssid->id_str : "");
802 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
803 wpas_clear_temp_disabled(wpa_s, ssid, 1);
804 wpa_blacklist_clear(wpa_s);
805 wpa_s->extra_blacklist_count = 0;
806 wpa_s->new_connection = 0;
807 wpa_drv_set_operstate(wpa_s, 1);
808 #ifndef IEEE8021X_EAPOL
809 wpa_drv_set_supp_port(wpa_s, 1);
810 #endif /* IEEE8021X_EAPOL */
811 wpa_s->after_wps = 0;
812 wpa_s->known_wps_freq = 0;
813 wpas_p2p_completed(wpa_s);
815 sme_sched_obss_scan(wpa_s, 1);
816 } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
817 state == WPA_ASSOCIATED) {
818 wpa_s->new_connection = 1;
819 wpa_drv_set_operstate(wpa_s, 0);
820 #ifndef IEEE8021X_EAPOL
821 wpa_drv_set_supp_port(wpa_s, 0);
822 #endif /* IEEE8021X_EAPOL */
823 sme_sched_obss_scan(wpa_s, 0);
825 wpa_s->wpa_state = state;
828 if (state == WPA_COMPLETED)
829 wpa_supplicant_start_bgscan(wpa_s);
830 else if (state < WPA_ASSOCIATED)
831 wpa_supplicant_stop_bgscan(wpa_s);
832 #endif /* CONFIG_BGSCAN */
834 if (state == WPA_AUTHENTICATING)
835 wpa_supplicant_stop_autoscan(wpa_s);
837 if (state == WPA_DISCONNECTED || state == WPA_INACTIVE)
838 wpa_supplicant_start_autoscan(wpa_s);
840 if (old_state >= WPA_ASSOCIATED && wpa_s->wpa_state < WPA_ASSOCIATED)
841 wmm_ac_notify_disassoc(wpa_s);
843 if (wpa_s->wpa_state != old_state) {
844 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
847 * Notify the P2P Device interface about a state change in one
850 wpas_p2p_indicate_state_change(wpa_s);
852 if (wpa_s->wpa_state == WPA_COMPLETED ||
853 old_state == WPA_COMPLETED)
854 wpas_notify_auth_changed(wpa_s);
859 void wpa_supplicant_terminate_proc(struct wpa_global *global)
863 struct wpa_supplicant *wpa_s = global->ifaces;
865 struct wpa_supplicant *next = wpa_s->next;
866 if (wpas_wps_terminate_pending(wpa_s) == 1)
869 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE ||
870 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group))
871 wpas_p2p_disconnect(wpa_s);
872 #endif /* CONFIG_P2P */
875 #endif /* CONFIG_WPS */
882 static void wpa_supplicant_terminate(int sig, void *signal_ctx)
884 struct wpa_global *global = signal_ctx;
885 wpa_supplicant_terminate_proc(global);
889 void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s)
891 enum wpa_states old_state = wpa_s->wpa_state;
893 wpa_s->pairwise_cipher = 0;
894 wpa_s->group_cipher = 0;
895 wpa_s->mgmt_group_cipher = 0;
897 if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED)
898 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
900 if (wpa_s->wpa_state != old_state)
901 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
906 * wpa_supplicant_reload_configuration - Reload configuration data
907 * @wpa_s: Pointer to wpa_supplicant data
908 * Returns: 0 on success or -1 if configuration parsing failed
910 * This function can be used to request that the configuration data is reloaded
911 * (e.g., after configuration file change). This function is reloading
912 * configuration only for one interface, so this may need to be called multiple
913 * times if %wpa_supplicant is controlling multiple interfaces and all
914 * interfaces need reconfiguration.
916 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s)
918 struct wpa_config *conf;
922 if (wpa_s->confname == NULL)
924 conf = wpa_config_read(wpa_s->confname, NULL);
926 wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration "
927 "file '%s' - exiting", wpa_s->confname);
930 wpa_config_read(wpa_s->confanother, conf);
932 conf->changed_parameters = (unsigned int) -1;
934 reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface
935 || (conf->ctrl_interface && wpa_s->conf->ctrl_interface &&
936 os_strcmp(conf->ctrl_interface,
937 wpa_s->conf->ctrl_interface) != 0);
939 if (reconf_ctrl && wpa_s->ctrl_iface) {
940 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
941 wpa_s->ctrl_iface = NULL;
944 eapol_sm_invalidate_cached_session(wpa_s->eapol);
945 if (wpa_s->current_ssid) {
946 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
947 wpa_s->own_disconnect_req = 1;
948 wpa_supplicant_deauthenticate(wpa_s,
949 WLAN_REASON_DEAUTH_LEAVING);
953 * TODO: should notify EAPOL SM about changes in opensc_engine_path,
954 * pkcs11_engine_path, pkcs11_module_path, openssl_ciphers.
956 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
958 * Clear forced success to clear EAP state for next
961 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
963 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
964 wpa_sm_set_config(wpa_s->wpa, NULL);
965 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
966 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
967 rsn_preauth_deinit(wpa_s->wpa);
969 old_ap_scan = wpa_s->conf->ap_scan;
970 wpa_config_free(wpa_s->conf);
972 if (old_ap_scan != wpa_s->conf->ap_scan)
973 wpas_notify_ap_scan_changed(wpa_s);
976 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
978 wpa_supplicant_update_config(wpa_s);
980 wpa_supplicant_clear_status(wpa_s);
981 if (wpa_supplicant_enabled_networks(wpa_s)) {
982 wpa_s->reassociate = 1;
983 wpa_supplicant_req_scan(wpa_s, 0, 0);
985 wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed");
990 static void wpa_supplicant_reconfig(int sig, void *signal_ctx)
992 struct wpa_global *global = signal_ctx;
993 struct wpa_supplicant *wpa_s;
994 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
995 wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring",
997 if (wpa_supplicant_reload_configuration(wpa_s) < 0) {
998 wpa_supplicant_terminate_proc(global);
1002 if (wpa_debug_reopen_file() < 0) {
1003 /* Ignore errors since we cannot really do much to fix this */
1004 wpa_printf(MSG_DEBUG, "Could not reopen debug log file");
1009 static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s,
1010 struct wpa_ssid *ssid,
1011 struct wpa_ie_data *ie)
1013 int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie);
1016 wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE "
1017 "from association info");
1022 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set "
1024 if (!(ie->group_cipher & ssid->group_cipher)) {
1025 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group "
1026 "cipher 0x%x (mask 0x%x) - reject",
1027 ie->group_cipher, ssid->group_cipher);
1030 if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) {
1031 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise "
1032 "cipher 0x%x (mask 0x%x) - reject",
1033 ie->pairwise_cipher, ssid->pairwise_cipher);
1036 if (!(ie->key_mgmt & ssid->key_mgmt)) {
1037 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key "
1038 "management 0x%x (mask 0x%x) - reject",
1039 ie->key_mgmt, ssid->key_mgmt);
1043 #ifdef CONFIG_IEEE80211W
1044 if (!(ie->capabilities & WPA_CAPABILITY_MFPC) &&
1045 wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) {
1046 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP "
1047 "that does not support management frame protection - "
1051 #endif /* CONFIG_IEEE80211W */
1058 * wpa_supplicant_set_suites - Set authentication and encryption parameters
1059 * @wpa_s: Pointer to wpa_supplicant data
1060 * @bss: Scan results for the selected BSS, or %NULL if not available
1061 * @ssid: Configuration data for the selected network
1062 * @wpa_ie: Buffer for the WPA/RSN IE
1063 * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the
1064 * used buffer length in case the functions returns success.
1065 * Returns: 0 on success or -1 on failure
1067 * This function is used to configure authentication and encryption parameters
1068 * based on the network configuration and scan result for the selected BSS (if
1071 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
1072 struct wpa_bss *bss, struct wpa_ssid *ssid,
1073 u8 *wpa_ie, size_t *wpa_ie_len)
1075 struct wpa_ie_data ie;
1077 const u8 *bss_wpa, *bss_rsn, *bss_osen;
1080 bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1081 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1082 bss_osen = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1084 bss_wpa = bss_rsn = bss_osen = NULL;
1086 if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) &&
1087 wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 &&
1088 (ie.group_cipher & ssid->group_cipher) &&
1089 (ie.pairwise_cipher & ssid->pairwise_cipher) &&
1090 (ie.key_mgmt & ssid->key_mgmt)) {
1091 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0");
1092 proto = WPA_PROTO_RSN;
1093 } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) &&
1094 wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie) == 0 &&
1095 (ie.group_cipher & ssid->group_cipher) &&
1096 (ie.pairwise_cipher & ssid->pairwise_cipher) &&
1097 (ie.key_mgmt & ssid->key_mgmt)) {
1098 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0");
1099 proto = WPA_PROTO_WPA;
1101 } else if (bss_osen && (ssid->proto & WPA_PROTO_OSEN)) {
1102 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using OSEN");
1103 /* TODO: parse OSEN element */
1104 os_memset(&ie, 0, sizeof(ie));
1105 ie.group_cipher = WPA_CIPHER_CCMP;
1106 ie.pairwise_cipher = WPA_CIPHER_CCMP;
1107 ie.key_mgmt = WPA_KEY_MGMT_OSEN;
1108 proto = WPA_PROTO_OSEN;
1109 #endif /* CONFIG_HS20 */
1111 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN");
1112 wpa_dbg(wpa_s, MSG_DEBUG,
1113 "WPA: ssid proto=0x%x pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1114 ssid->proto, ssid->pairwise_cipher, ssid->group_cipher,
1116 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: BSS " MACSTR " ssid='%s'%s%s%s",
1117 MAC2STR(bss->bssid),
1118 wpa_ssid_txt(bss->ssid, bss->ssid_len),
1119 bss_wpa ? " WPA" : "",
1120 bss_rsn ? " RSN" : "",
1121 bss_osen ? " OSEN" : "");
1123 wpa_hexdump(MSG_DEBUG, "RSN", bss_rsn, 2 + bss_rsn[1]);
1124 if (wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie)) {
1125 wpa_dbg(wpa_s, MSG_DEBUG,
1126 "Could not parse RSN element");
1128 wpa_dbg(wpa_s, MSG_DEBUG,
1129 "RSN: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1130 ie.pairwise_cipher, ie.group_cipher,
1135 wpa_hexdump(MSG_DEBUG, "WPA", bss_wpa, 2 + bss_wpa[1]);
1136 if (wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie)) {
1137 wpa_dbg(wpa_s, MSG_DEBUG,
1138 "Could not parse WPA element");
1140 wpa_dbg(wpa_s, MSG_DEBUG,
1141 "WPA: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1142 ie.pairwise_cipher, ie.group_cipher,
1148 if (ssid->proto & WPA_PROTO_OSEN)
1149 proto = WPA_PROTO_OSEN;
1150 else if (ssid->proto & WPA_PROTO_RSN)
1151 proto = WPA_PROTO_RSN;
1153 proto = WPA_PROTO_WPA;
1154 if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) {
1155 os_memset(&ie, 0, sizeof(ie));
1156 ie.group_cipher = ssid->group_cipher;
1157 ie.pairwise_cipher = ssid->pairwise_cipher;
1158 ie.key_mgmt = ssid->key_mgmt;
1159 #ifdef CONFIG_IEEE80211W
1160 ie.mgmt_group_cipher =
1161 ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ?
1162 WPA_CIPHER_AES_128_CMAC : 0;
1163 #endif /* CONFIG_IEEE80211W */
1164 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites "
1165 "based on configuration");
1170 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d "
1171 "pairwise %d key_mgmt %d proto %d",
1172 ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto);
1173 #ifdef CONFIG_IEEE80211W
1174 if (ssid->ieee80211w) {
1175 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d",
1176 ie.mgmt_group_cipher);
1178 #endif /* CONFIG_IEEE80211W */
1180 wpa_s->wpa_proto = proto;
1181 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto);
1182 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
1183 !!(ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)));
1185 if (bss || !wpa_s->ap_ies_from_associnfo) {
1186 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1187 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1188 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1189 bss_rsn ? 2 + bss_rsn[1] : 0))
1193 #ifdef CONFIG_NO_WPA
1194 wpa_s->group_cipher = WPA_CIPHER_NONE;
1195 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
1196 #else /* CONFIG_NO_WPA */
1197 sel = ie.group_cipher & ssid->group_cipher;
1198 wpa_s->group_cipher = wpa_pick_group_cipher(sel);
1199 if (wpa_s->group_cipher < 0) {
1200 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group "
1204 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
1205 wpa_cipher_txt(wpa_s->group_cipher));
1207 sel = ie.pairwise_cipher & ssid->pairwise_cipher;
1208 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(sel, 1);
1209 if (wpa_s->pairwise_cipher < 0) {
1210 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise "
1214 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
1215 wpa_cipher_txt(wpa_s->pairwise_cipher));
1216 #endif /* CONFIG_NO_WPA */
1218 sel = ie.key_mgmt & ssid->key_mgmt;
1220 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE))
1221 sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE);
1222 #endif /* CONFIG_SAE */
1224 #ifdef CONFIG_SUITEB192
1225 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
1226 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
1227 wpa_dbg(wpa_s, MSG_DEBUG,
1228 "WPA: using KEY_MGMT 802.1X with Suite B (192-bit)");
1229 #endif /* CONFIG_SUITEB192 */
1230 #ifdef CONFIG_SUITEB
1231 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
1232 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B;
1233 wpa_dbg(wpa_s, MSG_DEBUG,
1234 "WPA: using KEY_MGMT 802.1X with Suite B");
1235 #endif /* CONFIG_SUITEB */
1236 #ifdef CONFIG_IEEE80211R
1237 } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) {
1238 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X;
1239 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X");
1240 } else if (sel & WPA_KEY_MGMT_FT_PSK) {
1241 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK;
1242 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK");
1243 #endif /* CONFIG_IEEE80211R */
1245 } else if (sel & WPA_KEY_MGMT_SAE) {
1246 wpa_s->key_mgmt = WPA_KEY_MGMT_SAE;
1247 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT SAE");
1248 } else if (sel & WPA_KEY_MGMT_FT_SAE) {
1249 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_SAE;
1250 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT FT/SAE");
1251 #endif /* CONFIG_SAE */
1252 #ifdef CONFIG_IEEE80211W
1253 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) {
1254 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256;
1255 wpa_dbg(wpa_s, MSG_DEBUG,
1256 "WPA: using KEY_MGMT 802.1X with SHA256");
1257 } else if (sel & WPA_KEY_MGMT_PSK_SHA256) {
1258 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256;
1259 wpa_dbg(wpa_s, MSG_DEBUG,
1260 "WPA: using KEY_MGMT PSK with SHA256");
1261 #endif /* CONFIG_IEEE80211W */
1262 } else if (sel & WPA_KEY_MGMT_IEEE8021X) {
1263 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
1264 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X");
1265 } else if (sel & WPA_KEY_MGMT_PSK) {
1266 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
1267 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK");
1268 } else if (sel & WPA_KEY_MGMT_WPA_NONE) {
1269 wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE;
1270 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE");
1272 } else if (sel & WPA_KEY_MGMT_OSEN) {
1273 wpa_s->key_mgmt = WPA_KEY_MGMT_OSEN;
1274 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using KEY_MGMT OSEN");
1275 #endif /* CONFIG_HS20 */
1277 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select "
1278 "authenticated key management type");
1282 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
1283 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
1284 wpa_s->pairwise_cipher);
1285 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
1287 #ifdef CONFIG_IEEE80211W
1288 sel = ie.mgmt_group_cipher;
1289 if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION ||
1290 !(ie.capabilities & WPA_CAPABILITY_MFPC))
1292 if (sel & WPA_CIPHER_AES_128_CMAC) {
1293 wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC;
1294 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1296 } else if (sel & WPA_CIPHER_BIP_GMAC_128) {
1297 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_128;
1298 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1300 } else if (sel & WPA_CIPHER_BIP_GMAC_256) {
1301 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_256;
1302 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1304 } else if (sel & WPA_CIPHER_BIP_CMAC_256) {
1305 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_CMAC_256;
1306 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1309 wpa_s->mgmt_group_cipher = 0;
1310 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
1312 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
1313 wpa_s->mgmt_group_cipher);
1314 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP,
1315 wpas_get_ssid_pmf(wpa_s, ssid));
1316 #endif /* CONFIG_IEEE80211W */
1318 if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) {
1319 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE");
1323 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) {
1326 if (ssid->psk_set) {
1327 wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL,
1331 #ifndef CONFIG_NO_PBKDF2
1332 if (bss && ssid->bssid_set && ssid->ssid_len == 0 &&
1335 pbkdf2_sha1(ssid->passphrase, bss->ssid, bss->ssid_len,
1336 4096, psk, PMK_LEN);
1337 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
1339 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL, NULL);
1341 os_memset(psk, 0, sizeof(psk));
1343 #endif /* CONFIG_NO_PBKDF2 */
1344 #ifdef CONFIG_EXT_PASSWORD
1345 if (ssid->ext_psk) {
1346 struct wpabuf *pw = ext_password_get(wpa_s->ext_pw,
1348 char pw_str[64 + 1];
1352 wpa_msg(wpa_s, MSG_INFO, "EXT PW: No PSK "
1353 "found from external storage");
1357 if (wpabuf_len(pw) < 8 || wpabuf_len(pw) > 64) {
1358 wpa_msg(wpa_s, MSG_INFO, "EXT PW: Unexpected "
1359 "PSK length %d in external storage",
1360 (int) wpabuf_len(pw));
1361 ext_password_free(pw);
1365 os_memcpy(pw_str, wpabuf_head(pw), wpabuf_len(pw));
1366 pw_str[wpabuf_len(pw)] = '\0';
1368 #ifndef CONFIG_NO_PBKDF2
1369 if (wpabuf_len(pw) >= 8 && wpabuf_len(pw) < 64 && bss)
1371 pbkdf2_sha1(pw_str, bss->ssid, bss->ssid_len,
1372 4096, psk, PMK_LEN);
1373 os_memset(pw_str, 0, sizeof(pw_str));
1374 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from "
1375 "external passphrase)",
1377 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL,
1380 os_memset(psk, 0, sizeof(psk));
1382 #endif /* CONFIG_NO_PBKDF2 */
1383 if (wpabuf_len(pw) == 2 * PMK_LEN) {
1384 if (hexstr2bin(pw_str, psk, PMK_LEN) < 0) {
1385 wpa_msg(wpa_s, MSG_INFO, "EXT PW: "
1386 "Invalid PSK hex string");
1387 os_memset(pw_str, 0, sizeof(pw_str));
1388 ext_password_free(pw);
1391 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL,
1394 os_memset(psk, 0, sizeof(psk));
1396 wpa_msg(wpa_s, MSG_INFO, "EXT PW: No suitable "
1398 os_memset(pw_str, 0, sizeof(pw_str));
1399 ext_password_free(pw);
1403 os_memset(pw_str, 0, sizeof(pw_str));
1404 ext_password_free(pw);
1406 #endif /* CONFIG_EXT_PASSWORD */
1409 wpa_msg(wpa_s, MSG_INFO,
1410 "No PSK available for association");
1414 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
1420 static void wpas_ext_capab_byte(struct wpa_supplicant *wpa_s, u8 *pos, int idx)
1425 case 0: /* Bits 0-7 */
1427 case 1: /* Bits 8-15 */
1429 case 2: /* Bits 16-23 */
1431 *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */
1432 *pos |= 0x08; /* Bit 19 - BSS Transition */
1433 #endif /* CONFIG_WNM */
1435 case 3: /* Bits 24-31 */
1437 *pos |= 0x02; /* Bit 25 - SSID List */
1438 #endif /* CONFIG_WNM */
1439 #ifdef CONFIG_INTERWORKING
1440 if (wpa_s->conf->interworking)
1441 *pos |= 0x80; /* Bit 31 - Interworking */
1442 #endif /* CONFIG_INTERWORKING */
1444 case 4: /* Bits 32-39 */
1445 #ifdef CONFIG_INTERWORKING
1446 if (wpa_s->drv_flags / WPA_DRIVER_FLAGS_QOS_MAPPING)
1447 *pos |= 0x01; /* Bit 32 - QoS Map */
1448 #endif /* CONFIG_INTERWORKING */
1450 case 5: /* Bits 40-47 */
1452 if (wpa_s->conf->hs20)
1453 *pos |= 0x40; /* Bit 46 - WNM-Notification */
1454 #endif /* CONFIG_HS20 */
1456 *pos |= 0x40; /* Bit 46 - WNM-Notification */
1457 #endif /* CONFIG_MBO */
1459 case 6: /* Bits 48-55 */
1461 case 7: /* Bits 56-63 */
1463 case 8: /* Bits 64-71 */
1464 if (wpa_s->conf->ftm_responder)
1465 *pos |= 0x40; /* Bit 70 - FTM responder */
1466 if (wpa_s->conf->ftm_initiator)
1467 *pos |= 0x80; /* Bit 71 - FTM initiator */
1473 int wpas_build_ext_capab(struct wpa_supplicant *wpa_s, u8 *buf, size_t buflen)
1479 (wpa_s->conf->ftm_initiator || wpa_s->conf->ftm_responder))
1481 if (len < wpa_s->extended_capa_len)
1482 len = wpa_s->extended_capa_len;
1483 if (buflen < (size_t) len + 2) {
1484 wpa_printf(MSG_INFO,
1485 "Not enough room for building extended capabilities element");
1489 *pos++ = WLAN_EID_EXT_CAPAB;
1491 for (i = 0; i < len; i++, pos++) {
1492 wpas_ext_capab_byte(wpa_s, pos, i);
1494 if (i < wpa_s->extended_capa_len) {
1495 *pos &= ~wpa_s->extended_capa_mask[i];
1496 *pos |= wpa_s->extended_capa[i];
1500 while (len > 0 && buf[1 + len] == 0) {
1511 static int wpas_valid_bss(struct wpa_supplicant *wpa_s,
1512 struct wpa_bss *test_bss)
1514 struct wpa_bss *bss;
1516 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1517 if (bss == test_bss)
1525 static int wpas_valid_ssid(struct wpa_supplicant *wpa_s,
1526 struct wpa_ssid *test_ssid)
1528 struct wpa_ssid *ssid;
1530 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1531 if (ssid == test_ssid)
1539 int wpas_valid_bss_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *test_bss,
1540 struct wpa_ssid *test_ssid)
1542 if (test_bss && !wpas_valid_bss(wpa_s, test_bss))
1545 return test_ssid == NULL || wpas_valid_ssid(wpa_s, test_ssid);
1549 void wpas_connect_work_free(struct wpa_connect_work *cwork)
1557 void wpas_connect_work_done(struct wpa_supplicant *wpa_s)
1559 struct wpa_connect_work *cwork;
1560 struct wpa_radio_work *work = wpa_s->connect_work;
1565 wpa_s->connect_work = NULL;
1568 wpas_connect_work_free(cwork);
1569 radio_work_done(work);
1573 int wpas_update_random_addr(struct wpa_supplicant *wpa_s, int style)
1575 struct os_reltime now;
1578 os_get_reltime(&now);
1579 if (wpa_s->last_mac_addr_style == style &&
1580 wpa_s->last_mac_addr_change.sec != 0 &&
1581 !os_reltime_expired(&now, &wpa_s->last_mac_addr_change,
1582 wpa_s->conf->rand_addr_lifetime)) {
1583 wpa_msg(wpa_s, MSG_DEBUG,
1584 "Previously selected random MAC address has not yet expired");
1590 if (random_mac_addr(addr) < 0)
1594 os_memcpy(addr, wpa_s->perm_addr, ETH_ALEN);
1595 if (random_mac_addr_keep_oui(addr) < 0)
1602 if (wpa_drv_set_mac_addr(wpa_s, addr) < 0) {
1603 wpa_msg(wpa_s, MSG_INFO,
1604 "Failed to set random MAC address");
1608 os_get_reltime(&wpa_s->last_mac_addr_change);
1609 wpa_s->mac_addr_changed = 1;
1610 wpa_s->last_mac_addr_style = style;
1612 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
1613 wpa_msg(wpa_s, MSG_INFO,
1614 "Could not update MAC address information");
1618 wpa_msg(wpa_s, MSG_DEBUG, "Using random MAC address " MACSTR,
1625 int wpas_update_random_addr_disassoc(struct wpa_supplicant *wpa_s)
1627 if (wpa_s->wpa_state >= WPA_AUTHENTICATING ||
1628 !wpa_s->conf->preassoc_mac_addr)
1631 return wpas_update_random_addr(wpa_s, wpa_s->conf->preassoc_mac_addr);
1635 static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit);
1638 * wpa_supplicant_associate - Request association
1639 * @wpa_s: Pointer to wpa_supplicant data
1640 * @bss: Scan results for the selected BSS, or %NULL if not available
1641 * @ssid: Configuration data for the selected network
1643 * This function is used to request %wpa_supplicant to associate with a BSS.
1645 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
1646 struct wpa_bss *bss, struct wpa_ssid *ssid)
1648 struct wpa_connect_work *cwork;
1651 wpa_s->own_disconnect_req = 0;
1654 * If we are starting a new connection, any previously pending EAPOL
1655 * RX cannot be valid anymore.
1657 wpabuf_free(wpa_s->pending_eapol_rx);
1658 wpa_s->pending_eapol_rx = NULL;
1660 if (ssid->mac_addr == -1)
1661 rand_style = wpa_s->conf->mac_addr;
1663 rand_style = ssid->mac_addr;
1665 wmm_ac_clear_saved_tspecs(wpa_s);
1666 wpa_s->reassoc_same_bss = 0;
1667 wpa_s->reassoc_same_ess = 0;
1669 if (wpa_s->last_ssid == ssid) {
1670 wpa_dbg(wpa_s, MSG_DEBUG, "Re-association to the same ESS");
1671 wpa_s->reassoc_same_ess = 1;
1672 if (wpa_s->current_bss && wpa_s->current_bss == bss) {
1673 wmm_ac_save_tspecs(wpa_s);
1674 wpa_s->reassoc_same_bss = 1;
1676 } else if (rand_style > 0) {
1677 if (wpas_update_random_addr(wpa_s, rand_style) < 0)
1679 wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
1680 } else if (wpa_s->mac_addr_changed) {
1681 if (wpa_drv_set_mac_addr(wpa_s, NULL) < 0) {
1682 wpa_msg(wpa_s, MSG_INFO,
1683 "Could not restore permanent MAC address");
1686 wpa_s->mac_addr_changed = 0;
1687 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
1688 wpa_msg(wpa_s, MSG_INFO,
1689 "Could not update MAC address information");
1692 wpa_msg(wpa_s, MSG_DEBUG, "Using permanent MAC address");
1694 wpa_s->last_ssid = ssid;
1696 #ifdef CONFIG_IBSS_RSN
1697 ibss_rsn_deinit(wpa_s->ibss_rsn);
1698 wpa_s->ibss_rsn = NULL;
1699 #endif /* CONFIG_IBSS_RSN */
1701 if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO ||
1702 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1704 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) {
1705 wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP "
1709 if (wpa_supplicant_create_ap(wpa_s, ssid) < 0) {
1710 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1711 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1712 wpas_p2p_ap_setup_failed(wpa_s);
1715 wpa_s->current_bss = bss;
1716 #else /* CONFIG_AP */
1717 wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in "
1719 #endif /* CONFIG_AP */
1723 if (ssid->mode == WPAS_MODE_MESH) {
1725 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MESH)) {
1726 wpa_msg(wpa_s, MSG_INFO,
1727 "Driver does not support mesh mode");
1731 ssid->frequency = bss->freq;
1732 if (wpa_supplicant_join_mesh(wpa_s, ssid) < 0) {
1733 wpa_msg(wpa_s, MSG_ERROR, "Could not join mesh");
1736 wpa_s->current_bss = bss;
1737 wpa_msg(wpa_s, MSG_INFO, MESH_GROUP_STARTED "ssid=\"%s\" id=%d",
1738 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1740 #else /* CONFIG_MESH */
1741 wpa_msg(wpa_s, MSG_ERROR,
1742 "mesh mode support not included in the build");
1743 #endif /* CONFIG_MESH */
1749 wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1),
1751 #endif /* CONFIG_TDLS */
1753 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1754 ssid->mode == IEEE80211_MODE_INFRA) {
1755 sme_authenticate(wpa_s, bss, ssid);
1759 if (wpa_s->connect_work) {
1760 wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since connect_work exist");
1764 if (radio_work_pending(wpa_s, "connect")) {
1765 wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since pending work exist");
1769 wpas_abort_ongoing_scan(wpa_s);
1771 cwork = os_zalloc(sizeof(*cwork));
1778 if (radio_add_work(wpa_s, bss ? bss->freq : 0, "connect", 1,
1779 wpas_start_assoc_cb, cwork) < 0) {
1785 static int bss_is_ibss(struct wpa_bss *bss)
1787 return (bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
1792 static int drv_supports_vht(struct wpa_supplicant *wpa_s,
1793 const struct wpa_ssid *ssid)
1795 enum hostapd_hw_mode hw_mode;
1796 struct hostapd_hw_modes *mode = NULL;
1800 #ifdef CONFIG_HT_OVERRIDES
1801 if (ssid->disable_ht)
1803 #endif /* CONFIG_HT_OVERRIDES */
1805 hw_mode = ieee80211_freq_to_chan(ssid->frequency, &channel);
1806 if (hw_mode == NUM_HOSTAPD_MODES)
1808 for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) {
1809 if (wpa_s->hw.modes[i].mode == hw_mode) {
1810 mode = &wpa_s->hw.modes[i];
1818 return mode->vht_capab != 0;
1822 void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
1823 const struct wpa_ssid *ssid,
1824 struct hostapd_freq_params *freq)
1826 enum hostapd_hw_mode hw_mode;
1827 struct hostapd_hw_modes *mode = NULL;
1828 int ht40plus[] = { 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157,
1830 int vht80[] = { 36, 52, 100, 116, 132, 149 };
1831 struct hostapd_channel_data *pri_chan = NULL, *sec_chan = NULL;
1833 int i, chan_idx, ht40 = -1, res, obss_scan = 1;
1835 struct hostapd_freq_params vht_freq;
1836 int chwidth, seg0, seg1;
1839 freq->freq = ssid->frequency;
1841 for (j = 0; j < wpa_s->last_scan_res_used; j++) {
1842 struct wpa_bss *bss = wpa_s->last_scan_res[j];
1844 if (ssid->mode != WPAS_MODE_IBSS)
1847 /* Don't adjust control freq in case of fixed_freq */
1848 if (ssid->fixed_freq)
1851 if (!bss_is_ibss(bss))
1854 if (ssid->ssid_len == bss->ssid_len &&
1855 os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) == 0) {
1856 wpa_printf(MSG_DEBUG,
1857 "IBSS already found in scan results, adjust control freq: %d",
1859 freq->freq = bss->freq;
1865 /* For IBSS check HT_IBSS flag */
1866 if (ssid->mode == WPAS_MODE_IBSS &&
1867 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_HT_IBSS))
1870 if (wpa_s->group_cipher == WPA_CIPHER_WEP40 ||
1871 wpa_s->group_cipher == WPA_CIPHER_WEP104 ||
1872 wpa_s->pairwise_cipher == WPA_CIPHER_TKIP) {
1873 wpa_printf(MSG_DEBUG,
1874 "IBSS: WEP/TKIP detected, do not try to enable HT");
1878 hw_mode = ieee80211_freq_to_chan(freq->freq, &channel);
1879 for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) {
1880 if (wpa_s->hw.modes[i].mode == hw_mode) {
1881 mode = &wpa_s->hw.modes[i];
1889 #ifdef CONFIG_HT_OVERRIDES
1890 if (ssid->disable_ht) {
1891 freq->ht_enabled = 0;
1894 #endif /* CONFIG_HT_OVERRIDES */
1896 freq->ht_enabled = ht_supported(mode);
1897 if (!freq->ht_enabled)
1900 /* Setup higher BW only for 5 GHz */
1901 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
1904 for (chan_idx = 0; chan_idx < mode->num_channels; chan_idx++) {
1905 pri_chan = &mode->channels[chan_idx];
1906 if (pri_chan->chan == channel)
1913 /* Check primary channel flags */
1914 if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1917 #ifdef CONFIG_HT_OVERRIDES
1918 if (ssid->disable_ht40)
1920 #endif /* CONFIG_HT_OVERRIDES */
1922 /* Check/setup HT40+/HT40- */
1923 for (j = 0; j < ARRAY_SIZE(ht40plus); j++) {
1924 if (ht40plus[j] == channel) {
1930 /* Find secondary channel */
1931 for (i = 0; i < mode->num_channels; i++) {
1932 sec_chan = &mode->channels[i];
1933 if (sec_chan->chan == channel + ht40 * 4)
1940 /* Check secondary channel flags */
1941 if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1944 freq->channel = pri_chan->chan;
1947 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS))
1950 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40PLUS))
1953 freq->sec_channel_offset = ht40;
1956 struct wpa_scan_results *scan_res;
1958 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, 0);
1959 if (scan_res == NULL) {
1961 freq->sec_channel_offset = 0;
1965 res = check_40mhz_5g(mode, scan_res, pri_chan->chan,
1970 freq->sec_channel_offset = 0;
1973 /* Configuration allowed */
1976 /* Switch pri/sec channels */
1977 freq->freq = hw_get_freq(mode, sec_chan->chan);
1978 freq->sec_channel_offset = -freq->sec_channel_offset;
1979 freq->channel = sec_chan->chan;
1982 freq->sec_channel_offset = 0;
1986 wpa_scan_results_free(scan_res);
1989 wpa_printf(MSG_DEBUG,
1990 "IBSS/mesh: setup freq channel %d, sec_channel_offset %d",
1991 freq->channel, freq->sec_channel_offset);
1993 if (!drv_supports_vht(wpa_s, ssid))
1996 /* For IBSS check VHT_IBSS flag */
1997 if (ssid->mode == WPAS_MODE_IBSS &&
1998 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_VHT_IBSS))
2003 vht_freq.vht_enabled = vht_supported(mode);
2004 if (!vht_freq.vht_enabled)
2007 /* setup center_freq1, bandwidth */
2008 for (j = 0; j < ARRAY_SIZE(vht80); j++) {
2009 if (freq->channel >= vht80[j] &&
2010 freq->channel < vht80[j] + 16)
2014 if (j == ARRAY_SIZE(vht80))
2017 for (i = vht80[j]; i < vht80[j] + 16; i += 4) {
2018 struct hostapd_channel_data *chan;
2020 chan = hw_get_channel_chan(mode, i, NULL);
2024 /* Back to HT configuration if channel not usable */
2025 if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
2029 chwidth = VHT_CHANWIDTH_80MHZ;
2030 seg0 = vht80[j] + 6;
2033 if (ssid->max_oper_chwidth == VHT_CHANWIDTH_80P80MHZ) {
2034 /* setup center_freq2, bandwidth */
2035 for (k = 0; k < ARRAY_SIZE(vht80); k++) {
2036 /* Only accept 80 MHz segments separated by a gap */
2037 if (j == k || abs(vht80[j] - vht80[k]) == 16)
2039 for (i = vht80[k]; i < vht80[k] + 16; i += 4) {
2040 struct hostapd_channel_data *chan;
2042 chan = hw_get_channel_chan(mode, i, NULL);
2046 if (chan->flag & (HOSTAPD_CHAN_DISABLED |
2047 HOSTAPD_CHAN_NO_IR |
2048 HOSTAPD_CHAN_RADAR))
2051 /* Found a suitable second segment for 80+80 */
2052 chwidth = VHT_CHANWIDTH_80P80MHZ;
2054 VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
2055 seg1 = vht80[k] + 6;
2058 if (chwidth == VHT_CHANWIDTH_80P80MHZ)
2061 } else if (ssid->max_oper_chwidth == VHT_CHANWIDTH_160MHZ) {
2062 if (freq->freq == 5180) {
2063 chwidth = VHT_CHANWIDTH_160MHZ;
2064 vht_caps |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
2066 } else if (freq->freq == 5520) {
2067 chwidth = VHT_CHANWIDTH_160MHZ;
2068 vht_caps |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
2073 if (hostapd_set_freq_params(&vht_freq, mode->mode, freq->freq,
2074 freq->channel, freq->ht_enabled,
2075 vht_freq.vht_enabled,
2076 freq->sec_channel_offset,
2077 chwidth, seg0, seg1, vht_caps) != 0)
2082 wpa_printf(MSG_DEBUG, "IBSS: VHT setup freq cf1 %d, cf2 %d, bw %d",
2083 freq->center_freq1, freq->center_freq2, freq->bandwidth);
2087 static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
2089 struct wpa_connect_work *cwork = work->ctx;
2090 struct wpa_bss *bss = cwork->bss;
2091 struct wpa_ssid *ssid = cwork->ssid;
2092 struct wpa_supplicant *wpa_s = work->wpa_s;
2095 int use_crypt, ret, i, bssid_changed;
2096 int algs = WPA_AUTH_ALG_OPEN;
2097 unsigned int cipher_pairwise, cipher_group;
2098 struct wpa_driver_associate_params params;
2099 int wep_keys_set = 0;
2100 int assoc_failed = 0;
2101 struct wpa_ssid *old_ssid;
2102 u8 prev_bssid[ETH_ALEN];
2103 #ifdef CONFIG_HT_OVERRIDES
2104 struct ieee80211_ht_capabilities htcaps;
2105 struct ieee80211_ht_capabilities htcaps_mask;
2106 #endif /* CONFIG_HT_OVERRIDES */
2107 #ifdef CONFIG_VHT_OVERRIDES
2108 struct ieee80211_vht_capabilities vhtcaps;
2109 struct ieee80211_vht_capabilities vhtcaps_mask;
2110 #endif /* CONFIG_VHT_OVERRIDES */
2112 const u8 *mbo = NULL;
2113 #endif /* CONFIG_MBO */
2116 if (work->started) {
2117 wpa_s->connect_work = NULL;
2119 /* cancel possible auth. timeout */
2120 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s,
2123 wpas_connect_work_free(cwork);
2127 wpa_s->connect_work = work;
2129 if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid) ||
2130 wpas_network_disabled(wpa_s, ssid)) {
2131 wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt");
2132 wpas_connect_work_done(wpa_s);
2136 os_memcpy(prev_bssid, wpa_s->bssid, ETH_ALEN);
2137 os_memset(¶ms, 0, sizeof(params));
2138 wpa_s->reassociate = 0;
2139 wpa_s->eap_expected_failure = 0;
2141 (!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) {
2142 #ifdef CONFIG_IEEE80211R
2143 const u8 *ie, *md = NULL;
2144 #endif /* CONFIG_IEEE80211R */
2145 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
2146 " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
2147 wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
2148 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
2149 os_memset(wpa_s->bssid, 0, ETH_ALEN);
2150 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
2152 wpas_notify_bssid_changed(wpa_s);
2153 #ifdef CONFIG_IEEE80211R
2154 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
2155 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
2157 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
2159 /* Prepare for the next transition */
2160 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
2162 #endif /* CONFIG_IEEE80211R */
2164 } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
2165 wpa_s->conf->ap_scan == 2 &&
2166 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
2167 /* Use ap_scan==1 style network selection to find the network
2169 wpas_connect_work_done(wpa_s);
2170 wpa_s->scan_req = MANUAL_SCAN_REQ;
2171 wpa_s->reassociate = 1;
2172 wpa_supplicant_req_scan(wpa_s, 0, 0);
2174 #endif /* CONFIG_WPS */
2176 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
2177 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2179 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
2181 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2184 wpa_supplicant_cancel_sched_scan(wpa_s);
2186 wpa_supplicant_cancel_scan(wpa_s);
2188 /* Starting new association, so clear the possibly used WPA IE from the
2189 * previous association. */
2190 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2192 #ifdef IEEE8021X_EAPOL
2193 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2195 if (ssid->non_leap == 0)
2196 algs = WPA_AUTH_ALG_LEAP;
2198 algs |= WPA_AUTH_ALG_LEAP;
2201 #endif /* IEEE8021X_EAPOL */
2202 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs);
2203 if (ssid->auth_alg) {
2204 algs = ssid->auth_alg;
2205 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
2209 if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
2210 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
2211 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
2212 int try_opportunistic;
2213 try_opportunistic = (ssid->proactive_key_caching < 0 ?
2215 ssid->proactive_key_caching) &&
2216 (ssid->proto & WPA_PROTO_RSN);
2217 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
2218 ssid, try_opportunistic) == 0)
2219 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
2220 wpa_ie_len = sizeof(wpa_ie);
2221 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
2222 wpa_ie, &wpa_ie_len)) {
2223 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2224 "key management and encryption suites");
2225 wpas_connect_work_done(wpa_s);
2228 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss &&
2229 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
2231 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
2232 * use non-WPA since the scan results did not indicate that the
2233 * AP is using WPA or WPA2.
2235 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2237 wpa_s->wpa_proto = 0;
2238 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
2239 wpa_ie_len = sizeof(wpa_ie);
2240 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
2241 wpa_ie, &wpa_ie_len)) {
2242 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2243 "key management and encryption suites (no "
2245 wpas_connect_work_done(wpa_s);
2249 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2250 struct wpabuf *wps_ie;
2251 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
2252 if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) {
2253 wpa_ie_len = wpabuf_len(wps_ie);
2254 os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len);
2257 wpabuf_free(wps_ie);
2258 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2259 if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY))
2260 params.wps = WPS_MODE_PRIVACY;
2262 params.wps = WPS_MODE_OPEN;
2263 wpa_s->wpa_proto = 0;
2264 #endif /* CONFIG_WPS */
2266 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2268 wpa_s->wpa_proto = 0;
2272 if (wpa_s->global->p2p) {
2276 pos = wpa_ie + wpa_ie_len;
2277 len = sizeof(wpa_ie) - wpa_ie_len;
2278 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
2284 wpa_s->cross_connect_disallowed = 0;
2287 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
2289 wpa_s->cross_connect_disallowed =
2290 p2p_get_cross_connect_disallowed(p2p);
2292 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross "
2294 wpa_s->cross_connect_disallowed ?
2295 "disallows" : "allows");
2299 os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info));
2300 #endif /* CONFIG_P2P */
2304 mbo = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE);
2308 len = wpas_mbo_supp_op_class_ie(wpa_s, bss->freq,
2309 wpa_ie + wpa_ie_len,
2316 #endif /* CONFIG_MBO */
2319 * Workaround: Add Extended Capabilities element only if the AP
2320 * included this element in Beacon/Probe Response frames. Some older
2321 * APs seem to have interoperability issues if this element is
2322 * included, so while the standard may require us to include the
2323 * element in all cases, it is justifiable to skip it to avoid
2324 * interoperability issues.
2326 if (ssid->p2p_group)
2327 wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_CLIENT);
2329 wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION);
2331 if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) {
2334 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
2336 if (ext_capab_len > 0) {
2338 if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN)
2340 os_memmove(pos + ext_capab_len, pos,
2341 wpa_ie_len - (pos - wpa_ie));
2342 wpa_ie_len += ext_capab_len;
2343 os_memcpy(pos, ext_capab, ext_capab_len);
2348 if (is_hs20_network(wpa_s, ssid, bss)) {
2349 struct wpabuf *hs20;
2351 hs20 = wpabuf_alloc(20);
2353 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
2356 wpas_hs20_add_indication(hs20, pps_mo_id);
2357 len = sizeof(wpa_ie) - wpa_ie_len;
2358 if (wpabuf_len(hs20) <= len) {
2359 os_memcpy(wpa_ie + wpa_ie_len,
2360 wpabuf_head(hs20), wpabuf_len(hs20));
2361 wpa_ie_len += wpabuf_len(hs20);
2365 hs20_configure_frame_filters(wpa_s);
2368 #endif /* CONFIG_HS20 */
2370 if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
2371 struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
2374 len = sizeof(wpa_ie) - wpa_ie_len;
2375 if (wpabuf_len(buf) <= len) {
2376 os_memcpy(wpa_ie + wpa_ie_len,
2377 wpabuf_head(buf), wpabuf_len(buf));
2378 wpa_ie_len += wpabuf_len(buf);
2383 if (wpa_s->fst_ies) {
2384 int fst_ies_len = wpabuf_len(wpa_s->fst_ies);
2386 if (wpa_ie_len + fst_ies_len <= sizeof(wpa_ie)) {
2387 os_memcpy(wpa_ie + wpa_ie_len,
2388 wpabuf_head(wpa_s->fst_ies), fst_ies_len);
2389 wpa_ie_len += fst_ies_len;
2392 #endif /* CONFIG_FST */
2398 len = wpas_mbo_ie(wpa_s, wpa_ie + wpa_ie_len,
2399 sizeof(wpa_ie) - wpa_ie_len);
2403 #endif /* CONFIG_MBO */
2405 wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
2407 cipher_pairwise = wpa_s->pairwise_cipher;
2408 cipher_group = wpa_s->group_cipher;
2409 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2410 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2411 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE)
2413 if (wpa_set_wep_keys(wpa_s, ssid)) {
2418 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)
2421 #ifdef IEEE8021X_EAPOL
2422 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2423 if ((ssid->eapol_flags &
2424 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
2425 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 &&
2429 /* Assume that dynamic WEP-104 keys will be used and
2430 * set cipher suites in order for drivers to expect
2432 cipher_pairwise = cipher_group = WPA_CIPHER_WEP104;
2435 #endif /* IEEE8021X_EAPOL */
2437 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2438 /* Set the key before (and later after) association */
2439 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2442 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
2444 params.ssid = bss->ssid;
2445 params.ssid_len = bss->ssid_len;
2446 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2447 wpa_printf(MSG_DEBUG, "Limit connection to BSSID "
2448 MACSTR " freq=%u MHz based on scan results "
2450 MAC2STR(bss->bssid), bss->freq,
2452 params.bssid = bss->bssid;
2453 params.freq.freq = bss->freq;
2455 params.bssid_hint = bss->bssid;
2456 params.freq_hint = bss->freq;
2457 params.pbss = bss_is_pbss(bss);
2459 params.ssid = ssid->ssid;
2460 params.ssid_len = ssid->ssid_len;
2461 params.pbss = (ssid->pbss != 2) ? ssid->pbss : 0;
2464 if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set &&
2465 wpa_s->conf->ap_scan == 2) {
2466 params.bssid = ssid->bssid;
2467 params.fixed_bssid = 1;
2470 /* Initial frequency for IBSS/mesh */
2471 if ((ssid->mode == WPAS_MODE_IBSS || ssid->mode == WPAS_MODE_MESH) &&
2472 ssid->frequency > 0 && params.freq.freq == 0)
2473 ibss_mesh_setup_freq(wpa_s, ssid, ¶ms.freq);
2475 if (ssid->mode == WPAS_MODE_IBSS) {
2476 params.fixed_freq = ssid->fixed_freq;
2477 if (ssid->beacon_int)
2478 params.beacon_int = ssid->beacon_int;
2480 params.beacon_int = wpa_s->conf->beacon_int;
2483 params.wpa_ie = wpa_ie;
2484 params.wpa_ie_len = wpa_ie_len;
2485 params.pairwise_suite = cipher_pairwise;
2486 params.group_suite = cipher_group;
2487 params.key_mgmt_suite = wpa_s->key_mgmt;
2488 params.wpa_proto = wpa_s->wpa_proto;
2489 params.auth_alg = algs;
2490 params.mode = ssid->mode;
2491 params.bg_scan_period = ssid->bg_scan_period;
2492 for (i = 0; i < NUM_WEP_KEYS; i++) {
2493 if (ssid->wep_key_len[i])
2494 params.wep_key[i] = ssid->wep_key[i];
2495 params.wep_key_len[i] = ssid->wep_key_len[i];
2497 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
2499 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2500 (params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2501 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
2502 params.passphrase = ssid->passphrase;
2504 params.psk = ssid->psk;
2507 if (wpa_s->conf->key_mgmt_offload) {
2508 if (params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
2509 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
2510 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
2511 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
2512 params.req_key_mgmt_offload =
2513 ssid->proactive_key_caching < 0 ?
2514 wpa_s->conf->okc : ssid->proactive_key_caching;
2516 params.req_key_mgmt_offload = 1;
2518 if ((params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2519 params.key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
2520 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK) &&
2522 params.psk = ssid->psk;
2525 params.drop_unencrypted = use_crypt;
2527 #ifdef CONFIG_IEEE80211W
2528 params.mgmt_frame_protection = wpas_get_ssid_pmf(wpa_s, ssid);
2529 if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) {
2530 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
2531 struct wpa_ie_data ie;
2532 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 &&
2534 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
2535 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports "
2536 "MFP: require MFP");
2537 params.mgmt_frame_protection =
2538 MGMT_FRAME_PROTECTION_REQUIRED;
2541 #endif /* CONFIG_IEEE80211W */
2543 params.p2p = ssid->p2p_group;
2545 if (wpa_s->p2pdev->set_sta_uapsd)
2546 params.uapsd = wpa_s->p2pdev->sta_uapsd;
2550 #ifdef CONFIG_HT_OVERRIDES
2551 os_memset(&htcaps, 0, sizeof(htcaps));
2552 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
2553 params.htcaps = (u8 *) &htcaps;
2554 params.htcaps_mask = (u8 *) &htcaps_mask;
2555 wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms);
2556 #endif /* CONFIG_HT_OVERRIDES */
2557 #ifdef CONFIG_VHT_OVERRIDES
2558 os_memset(&vhtcaps, 0, sizeof(vhtcaps));
2559 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
2560 params.vhtcaps = &vhtcaps;
2561 params.vhtcaps_mask = &vhtcaps_mask;
2562 wpa_supplicant_apply_vht_overrides(wpa_s, ssid, ¶ms);
2563 #endif /* CONFIG_VHT_OVERRIDES */
2567 * If multi-channel concurrency is not supported, check for any
2568 * frequency conflict. In case of any frequency conflict, remove the
2569 * least prioritized connection.
2571 if (wpa_s->num_multichan_concurrent < 2) {
2573 num = get_shared_radio_freqs(wpa_s, &freq, 1);
2574 if (num > 0 && freq > 0 && freq != params.freq.freq) {
2575 wpa_printf(MSG_DEBUG,
2576 "Assoc conflicting freq found (%d != %d)",
2577 freq, params.freq.freq);
2578 if (wpas_p2p_handle_frequency_conflicts(
2579 wpa_s, params.freq.freq, ssid) < 0) {
2580 wpas_connect_work_done(wpa_s);
2585 #endif /* CONFIG_P2P */
2587 if (wpa_s->reassoc_same_ess && !is_zero_ether_addr(prev_bssid) &&
2588 wpa_s->current_ssid)
2589 params.prev_bssid = prev_bssid;
2591 ret = wpa_drv_associate(wpa_s, ¶ms);
2593 wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
2595 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) {
2597 * The driver is known to mean what is saying, so we
2598 * can stop right here; the association will not
2601 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
2602 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2603 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2606 /* try to continue anyway; new association will be tried again
2611 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2612 /* Set the key after the association just in case association
2613 * cleared the previously configured key. */
2614 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2615 /* No need to timeout authentication since there is no key
2617 wpa_supplicant_cancel_auth_timeout(wpa_s);
2618 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2619 #ifdef CONFIG_IBSS_RSN
2620 } else if (ssid->mode == WPAS_MODE_IBSS &&
2621 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2622 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
2624 * RSN IBSS authentication is per-STA and we can disable the
2625 * per-BSSID authentication.
2627 wpa_supplicant_cancel_auth_timeout(wpa_s);
2628 #endif /* CONFIG_IBSS_RSN */
2630 /* Timeout for IEEE 802.11 authentication and association */
2634 /* give IBSS a bit more time */
2635 timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5;
2636 } else if (wpa_s->conf->ap_scan == 1) {
2637 /* give IBSS a bit more time */
2638 timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10;
2640 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
2644 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) {
2645 /* Set static WEP keys again */
2646 wpa_set_wep_keys(wpa_s, ssid);
2649 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) {
2651 * Do not allow EAP session resumption between different
2652 * network configurations.
2654 eapol_sm_invalidate_cached_session(wpa_s->eapol);
2656 old_ssid = wpa_s->current_ssid;
2657 wpa_s->current_ssid = ssid;
2659 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2660 wpa_s->current_bss = bss;
2662 hs20_configure_frame_filters(wpa_s);
2663 #endif /* CONFIG_HS20 */
2666 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
2667 wpa_supplicant_initiate_eapol(wpa_s);
2668 if (old_ssid != wpa_s->current_ssid)
2669 wpas_notify_network_changed(wpa_s);
2673 static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s,
2676 struct wpa_ssid *old_ssid;
2678 wpas_connect_work_done(wpa_s);
2679 wpa_clear_keys(wpa_s, addr);
2680 old_ssid = wpa_s->current_ssid;
2681 wpa_supplicant_mark_disassoc(wpa_s);
2682 wpa_sm_set_config(wpa_s->wpa, NULL);
2683 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2684 if (old_ssid != wpa_s->current_ssid)
2685 wpas_notify_network_changed(wpa_s);
2686 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
2691 * wpa_supplicant_deauthenticate - Deauthenticate the current connection
2692 * @wpa_s: Pointer to wpa_supplicant data
2693 * @reason_code: IEEE 802.11 reason code for the deauthenticate frame
2695 * This function is used to request %wpa_supplicant to deauthenticate from the
2698 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
2702 union wpa_event_data event;
2705 wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR
2706 " pending_bssid=" MACSTR " reason=%d state=%s",
2707 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
2708 reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state));
2710 if (!is_zero_ether_addr(wpa_s->pending_bssid) &&
2711 (wpa_s->wpa_state == WPA_AUTHENTICATING ||
2712 wpa_s->wpa_state == WPA_ASSOCIATING))
2713 addr = wpa_s->pending_bssid;
2714 else if (!is_zero_ether_addr(wpa_s->bssid))
2715 addr = wpa_s->bssid;
2716 else if (wpa_s->wpa_state == WPA_ASSOCIATING) {
2718 * When using driver-based BSS selection, we may not know the
2719 * BSSID with which we are currently trying to associate. We
2720 * need to notify the driver of this disconnection even in such
2721 * a case, so use the all zeros address here.
2723 addr = wpa_s->bssid;
2728 wpa_tdls_teardown_peers(wpa_s->wpa);
2729 #endif /* CONFIG_TDLS */
2733 wpa_msg(wpa_s, MSG_INFO, MESH_GROUP_REMOVED "%s",
2735 wpa_supplicant_leave_mesh(wpa_s);
2737 #endif /* CONFIG_MESH */
2740 wpa_drv_deauthenticate(wpa_s, addr, reason_code);
2741 os_memset(&event, 0, sizeof(event));
2742 event.deauth_info.reason_code = (u16) reason_code;
2743 event.deauth_info.locally_generated = 1;
2744 wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event);
2749 wpa_supplicant_clear_connection(wpa_s, addr);
2752 static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s,
2753 struct wpa_ssid *ssid)
2755 if (!ssid || !ssid->disabled || ssid->disabled == 2)
2759 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2760 wpas_notify_network_enabled_changed(wpa_s, ssid);
2763 * Try to reassociate since there is no current configuration and a new
2764 * network was made available.
2766 if (!wpa_s->current_ssid && !wpa_s->disconnected)
2767 wpa_s->reassociate = 1;
2772 * wpa_supplicant_add_network - Add a new network
2773 * @wpa_s: wpa_supplicant structure for a network interface
2774 * Returns: The new network configuration or %NULL if operation failed
2776 * This function performs the following operations:
2777 * 1. Adds a new network.
2778 * 2. Send network addition notification.
2779 * 3. Marks the network disabled.
2780 * 4. Set network default parameters.
2782 struct wpa_ssid * wpa_supplicant_add_network(struct wpa_supplicant *wpa_s)
2784 struct wpa_ssid *ssid;
2786 ssid = wpa_config_add_network(wpa_s->conf);
2789 wpas_notify_network_added(wpa_s, ssid);
2791 wpa_config_set_network_defaults(ssid);
2798 * wpa_supplicant_remove_network - Remove a configured network based on id
2799 * @wpa_s: wpa_supplicant structure for a network interface
2800 * @id: Unique network id to search for
2801 * Returns: 0 on success, or -1 if the network was not found, -2 if the network
2802 * could not be removed
2804 * This function performs the following operations:
2805 * 1. Removes the network.
2806 * 2. Send network removal notification.
2807 * 3. Update internal state machines.
2808 * 4. Stop any running sched scans.
2810 int wpa_supplicant_remove_network(struct wpa_supplicant *wpa_s, int id)
2812 struct wpa_ssid *ssid;
2815 ssid = wpa_config_get_network(wpa_s->conf, id);
2818 wpas_notify_network_removed(wpa_s, ssid);
2820 if (wpa_s->last_ssid == ssid)
2821 wpa_s->last_ssid = NULL;
2823 if (ssid == wpa_s->current_ssid || !wpa_s->current_ssid) {
2825 wpa_s->sme.prev_bssid_set = 0;
2826 #endif /* CONFIG_SME */
2828 * Invalidate the EAP session cache if the current or
2829 * previously used network is removed.
2831 eapol_sm_invalidate_cached_session(wpa_s->eapol);
2834 if (ssid == wpa_s->current_ssid) {
2835 wpa_sm_set_config(wpa_s->wpa, NULL);
2836 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2838 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2839 wpa_s->own_disconnect_req = 1;
2840 wpa_supplicant_deauthenticate(wpa_s,
2841 WLAN_REASON_DEAUTH_LEAVING);
2844 was_disabled = ssid->disabled;
2846 if (wpa_config_remove_network(wpa_s->conf, id) < 0)
2849 if (!was_disabled && wpa_s->sched_scanning) {
2850 wpa_printf(MSG_DEBUG,
2851 "Stop ongoing sched_scan to remove network from filters");
2852 wpa_supplicant_cancel_sched_scan(wpa_s);
2853 wpa_supplicant_req_scan(wpa_s, 0, 0);
2861 * wpa_supplicant_enable_network - Mark a configured network as enabled
2862 * @wpa_s: wpa_supplicant structure for a network interface
2863 * @ssid: wpa_ssid structure for a configured network or %NULL
2865 * Enables the specified network or all networks if no network specified.
2867 void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
2868 struct wpa_ssid *ssid)
2871 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
2872 wpa_supplicant_enable_one_network(wpa_s, ssid);
2874 wpa_supplicant_enable_one_network(wpa_s, ssid);
2876 if (wpa_s->reassociate && !wpa_s->disconnected &&
2877 (!wpa_s->current_ssid ||
2878 wpa_s->wpa_state == WPA_DISCONNECTED ||
2879 wpa_s->wpa_state == WPA_SCANNING)) {
2880 if (wpa_s->sched_scanning) {
2881 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add "
2882 "new network to scan filters");
2883 wpa_supplicant_cancel_sched_scan(wpa_s);
2886 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
2887 wpa_s->scan_req = NORMAL_SCAN_REQ;
2888 wpa_supplicant_req_scan(wpa_s, 0, 0);
2895 * wpa_supplicant_disable_network - Mark a configured network as disabled
2896 * @wpa_s: wpa_supplicant structure for a network interface
2897 * @ssid: wpa_ssid structure for a configured network or %NULL
2899 * Disables the specified network or all networks if no network specified.
2901 void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
2902 struct wpa_ssid *ssid)
2904 struct wpa_ssid *other_ssid;
2908 if (wpa_s->sched_scanning)
2909 wpa_supplicant_cancel_sched_scan(wpa_s);
2911 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2912 other_ssid = other_ssid->next) {
2913 was_disabled = other_ssid->disabled;
2914 if (was_disabled == 2)
2915 continue; /* do not change persistent P2P group
2918 other_ssid->disabled = 1;
2920 if (was_disabled != other_ssid->disabled)
2921 wpas_notify_network_enabled_changed(
2924 if (wpa_s->current_ssid)
2925 wpa_supplicant_deauthenticate(
2926 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2927 } else if (ssid->disabled != 2) {
2928 if (ssid == wpa_s->current_ssid)
2929 wpa_supplicant_deauthenticate(
2930 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2932 was_disabled = ssid->disabled;
2936 if (was_disabled != ssid->disabled) {
2937 wpas_notify_network_enabled_changed(wpa_s, ssid);
2938 if (wpa_s->sched_scanning) {
2939 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan "
2940 "to remove network from filters");
2941 wpa_supplicant_cancel_sched_scan(wpa_s);
2942 wpa_supplicant_req_scan(wpa_s, 0, 0);
2950 * wpa_supplicant_select_network - Attempt association with a network
2951 * @wpa_s: wpa_supplicant structure for a network interface
2952 * @ssid: wpa_ssid structure for a configured network or %NULL for any network
2954 void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
2955 struct wpa_ssid *ssid)
2958 struct wpa_ssid *other_ssid;
2959 int disconnected = 0;
2961 if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) {
2962 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2963 wpa_s->own_disconnect_req = 1;
2964 wpa_supplicant_deauthenticate(
2965 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2970 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2973 * Mark all other networks disabled or mark all networks enabled if no
2974 * network specified.
2976 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2977 other_ssid = other_ssid->next) {
2978 int was_disabled = other_ssid->disabled;
2979 if (was_disabled == 2)
2980 continue; /* do not change persistent P2P group data */
2982 other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0;
2983 if (was_disabled && !other_ssid->disabled)
2984 wpas_clear_temp_disabled(wpa_s, other_ssid, 0);
2986 if (was_disabled != other_ssid->disabled)
2987 wpas_notify_network_enabled_changed(wpa_s, other_ssid);
2990 if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid &&
2991 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2992 /* We are already associated with the selected network */
2993 wpa_printf(MSG_DEBUG, "Already associated with the "
2994 "selected network - do nothing");
2999 wpa_s->current_ssid = ssid;
3000 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
3001 wpa_s->connect_without_scan =
3002 (ssid->mode == WPAS_MODE_MESH) ? ssid : NULL;
3005 * Don't optimize next scan freqs since a new ESS has been
3008 os_free(wpa_s->next_scan_freqs);
3009 wpa_s->next_scan_freqs = NULL;
3011 wpa_s->connect_without_scan = NULL;
3014 wpa_s->disconnected = 0;
3015 wpa_s->reassociate = 1;
3017 if (wpa_s->connect_without_scan ||
3018 wpa_supplicant_fast_associate(wpa_s) != 1) {
3019 wpa_s->scan_req = NORMAL_SCAN_REQ;
3020 wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0);
3024 wpas_notify_network_selected(wpa_s, ssid);
3029 * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path
3030 * @wpa_s: wpa_supplicant structure for a network interface
3031 * @pkcs11_engine_path: PKCS #11 engine path or NULL
3032 * @pkcs11_module_path: PKCS #11 module path or NULL
3033 * Returns: 0 on success; -1 on failure
3035 * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid
3036 * path. If resetting the EAPOL state machine with the new PKCS #11 engine and
3037 * module path fails the paths will be reset to the default value (NULL).
3039 int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant *wpa_s,
3040 const char *pkcs11_engine_path,
3041 const char *pkcs11_module_path)
3043 char *pkcs11_engine_path_copy = NULL;
3044 char *pkcs11_module_path_copy = NULL;
3046 if (pkcs11_engine_path != NULL) {
3047 pkcs11_engine_path_copy = os_strdup(pkcs11_engine_path);
3048 if (pkcs11_engine_path_copy == NULL)
3051 if (pkcs11_module_path != NULL) {
3052 pkcs11_module_path_copy = os_strdup(pkcs11_module_path);
3053 if (pkcs11_module_path_copy == NULL) {
3054 os_free(pkcs11_engine_path_copy);
3059 os_free(wpa_s->conf->pkcs11_engine_path);
3060 os_free(wpa_s->conf->pkcs11_module_path);
3061 wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path_copy;
3062 wpa_s->conf->pkcs11_module_path = pkcs11_module_path_copy;
3064 wpa_sm_set_eapol(wpa_s->wpa, NULL);
3065 eapol_sm_deinit(wpa_s->eapol);
3066 wpa_s->eapol = NULL;
3067 if (wpa_supplicant_init_eapol(wpa_s)) {
3068 /* Error -> Reset paths to the default value (NULL) once. */
3069 if (pkcs11_engine_path != NULL && pkcs11_module_path != NULL)
3070 wpas_set_pkcs11_engine_and_module_path(wpa_s, NULL,
3075 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
3082 * wpa_supplicant_set_ap_scan - Set AP scan mode for interface
3083 * @wpa_s: wpa_supplicant structure for a network interface
3084 * @ap_scan: AP scan mode
3085 * Returns: 0 if succeed or -1 if ap_scan has an invalid value
3088 int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan)
3093 if (ap_scan < 0 || ap_scan > 2)
3096 if (ap_scan == 2 && os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
3097 wpa_printf(MSG_INFO,
3098 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
3102 if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan &&
3103 wpa_s->wpa_state >= WPA_ASSOCIATING &&
3104 wpa_s->wpa_state < WPA_COMPLETED) {
3105 wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while "
3106 "associating", wpa_s->conf->ap_scan, ap_scan);
3109 #endif /* ANDROID */
3111 old_ap_scan = wpa_s->conf->ap_scan;
3112 wpa_s->conf->ap_scan = ap_scan;
3114 if (old_ap_scan != wpa_s->conf->ap_scan)
3115 wpas_notify_ap_scan_changed(wpa_s);
3122 * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age
3123 * @wpa_s: wpa_supplicant structure for a network interface
3124 * @expire_age: Expiration age in seconds
3125 * Returns: 0 if succeed or -1 if expire_age has an invalid value
3128 int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s,
3129 unsigned int bss_expire_age)
3131 if (bss_expire_age < 10) {
3132 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u",
3136 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec",
3138 wpa_s->conf->bss_expiration_age = bss_expire_age;
3145 * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count
3146 * @wpa_s: wpa_supplicant structure for a network interface
3147 * @expire_count: number of scans after which an unseen BSS is reclaimed
3148 * Returns: 0 if succeed or -1 if expire_count has an invalid value
3151 int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s,
3152 unsigned int bss_expire_count)
3154 if (bss_expire_count < 1) {
3155 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u",
3159 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u",
3161 wpa_s->conf->bss_expiration_scan_count = bss_expire_count;
3168 * wpa_supplicant_set_scan_interval - Set scan interval
3169 * @wpa_s: wpa_supplicant structure for a network interface
3170 * @scan_interval: scan interval in seconds
3171 * Returns: 0 if succeed or -1 if scan_interval has an invalid value
3174 int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s,
3177 if (scan_interval < 0) {
3178 wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d",
3182 wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec",
3184 wpa_supplicant_update_scan_int(wpa_s, scan_interval);
3191 * wpa_supplicant_set_debug_params - Set global debug params
3192 * @global: wpa_global structure
3193 * @debug_level: debug level
3194 * @debug_timestamp: determines if show timestamp in debug data
3195 * @debug_show_keys: determines if show keys in debug data
3196 * Returns: 0 if succeed or -1 if debug_level has wrong value
3198 int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level,
3199 int debug_timestamp, int debug_show_keys)
3202 int old_level, old_timestamp, old_show_keys;
3204 /* check for allowed debuglevels */
3205 if (debug_level != MSG_EXCESSIVE &&
3206 debug_level != MSG_MSGDUMP &&
3207 debug_level != MSG_DEBUG &&
3208 debug_level != MSG_INFO &&
3209 debug_level != MSG_WARNING &&
3210 debug_level != MSG_ERROR)
3213 old_level = wpa_debug_level;
3214 old_timestamp = wpa_debug_timestamp;
3215 old_show_keys = wpa_debug_show_keys;
3217 wpa_debug_level = debug_level;
3218 wpa_debug_timestamp = debug_timestamp ? 1 : 0;
3219 wpa_debug_show_keys = debug_show_keys ? 1 : 0;
3221 if (wpa_debug_level != old_level)
3222 wpas_notify_debug_level_changed(global);
3223 if (wpa_debug_timestamp != old_timestamp)
3224 wpas_notify_debug_timestamp_changed(global);
3225 if (wpa_debug_show_keys != old_show_keys)
3226 wpas_notify_debug_show_keys_changed(global);
3233 * wpa_supplicant_get_ssid - Get a pointer to the current network structure
3234 * @wpa_s: Pointer to wpa_supplicant data
3235 * Returns: A pointer to the current network structure or %NULL on failure
3237 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
3239 struct wpa_ssid *entry;
3240 u8 ssid[SSID_MAX_LEN];
3246 res = wpa_drv_get_ssid(wpa_s, ssid);
3248 wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from "
3254 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
3255 wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from "
3260 wired = wpa_s->conf->ap_scan == 0 &&
3261 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED);
3263 entry = wpa_s->conf->ssid;
3265 if (!wpas_network_disabled(wpa_s, entry) &&
3266 ((ssid_len == entry->ssid_len &&
3267 os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) &&
3268 (!entry->bssid_set ||
3269 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
3272 if (!wpas_network_disabled(wpa_s, entry) &&
3273 (entry->key_mgmt & WPA_KEY_MGMT_WPS) &&
3274 (entry->ssid == NULL || entry->ssid_len == 0) &&
3275 (!entry->bssid_set ||
3276 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
3278 #endif /* CONFIG_WPS */
3280 if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set &&
3281 entry->ssid_len == 0 &&
3282 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)
3285 entry = entry->next;
3292 static int select_driver(struct wpa_supplicant *wpa_s, int i)
3294 struct wpa_global *global = wpa_s->global;
3296 if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) {
3297 global->drv_priv[i] = wpa_drivers[i]->global_init(global);
3298 if (global->drv_priv[i] == NULL) {
3299 wpa_printf(MSG_ERROR, "Failed to initialize driver "
3300 "'%s'", wpa_drivers[i]->name);
3305 wpa_s->driver = wpa_drivers[i];
3306 wpa_s->global_drv_priv = global->drv_priv[i];
3312 static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s,
3317 const char *pos, *driver = name;
3322 if (wpa_drivers[0] == NULL) {
3323 wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into "
3329 /* default to first driver in the list */
3330 return select_driver(wpa_s, 0);
3334 pos = os_strchr(driver, ',');
3338 len = os_strlen(driver);
3340 for (i = 0; wpa_drivers[i]; i++) {
3341 if (os_strlen(wpa_drivers[i]->name) == len &&
3342 os_strncmp(driver, wpa_drivers[i]->name, len) ==
3344 /* First driver that succeeds wins */
3345 if (select_driver(wpa_s, i) == 0)
3353 wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name);
3359 * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant
3360 * @ctx: Context pointer (wpa_s); this is the ctx variable registered
3361 * with struct wpa_driver_ops::init()
3362 * @src_addr: Source address of the EAPOL frame
3363 * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header)
3364 * @len: Length of the EAPOL data
3366 * This function is called for each received EAPOL frame. Most driver
3367 * interfaces rely on more generic OS mechanism for receiving frames through
3368 * l2_packet, but if such a mechanism is not available, the driver wrapper may
3369 * take care of received EAPOL frames and deliver them to the core supplicant
3370 * code by calling this function.
3372 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
3373 const u8 *buf, size_t len)
3375 struct wpa_supplicant *wpa_s = ctx;
3377 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr));
3378 wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len);
3380 #ifdef CONFIG_TESTING_OPTIONS
3381 if (wpa_s->ignore_auth_resp) {
3382 wpa_printf(MSG_INFO, "RX EAPOL - ignore_auth_resp active!");
3385 #endif /* CONFIG_TESTING_OPTIONS */
3387 #ifdef CONFIG_PEERKEY
3388 if (wpa_s->wpa_state > WPA_ASSOCIATED && wpa_s->current_ssid &&
3389 wpa_s->current_ssid->peerkey &&
3390 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
3391 wpa_sm_rx_eapol_peerkey(wpa_s->wpa, src_addr, buf, len) == 1) {
3392 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: Processed PeerKey EAPOL-Key");
3395 #endif /* CONFIG_PEERKEY */
3397 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3398 (wpa_s->last_eapol_matches_bssid &&
3401 #endif /* CONFIG_AP */
3402 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) {
3404 * There is possible race condition between receiving the
3405 * association event and the EAPOL frame since they are coming
3406 * through different paths from the driver. In order to avoid
3407 * issues in trying to process the EAPOL frame before receiving
3408 * association information, lets queue it for processing until
3409 * the association event is received. This may also be needed in
3410 * driver-based roaming case, so also use src_addr != BSSID as a
3411 * trigger if we have previously confirmed that the
3412 * Authenticator uses BSSID as the src_addr (which is not the
3413 * case with wired IEEE 802.1X).
3415 wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing "
3416 "of received EAPOL frame (state=%s bssid=" MACSTR ")",
3417 wpa_supplicant_state_txt(wpa_s->wpa_state),
3418 MAC2STR(wpa_s->bssid));
3419 wpabuf_free(wpa_s->pending_eapol_rx);
3420 wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len);
3421 if (wpa_s->pending_eapol_rx) {
3422 os_get_reltime(&wpa_s->pending_eapol_rx_time);
3423 os_memcpy(wpa_s->pending_eapol_rx_src, src_addr,
3429 wpa_s->last_eapol_matches_bssid =
3430 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0;
3433 if (wpa_s->ap_iface) {
3434 wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len);
3437 #endif /* CONFIG_AP */
3439 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
3440 wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since "
3441 "no key management is configured");
3445 if (wpa_s->eapol_received == 0 &&
3446 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) ||
3447 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3448 wpa_s->wpa_state != WPA_COMPLETED) &&
3449 (wpa_s->current_ssid == NULL ||
3450 wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) {
3451 /* Timeout for completing IEEE 802.1X and WPA authentication */
3454 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3455 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA ||
3456 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
3457 /* Use longer timeout for IEEE 802.1X/EAP */
3462 if (wpa_s->current_ssid && wpa_s->current_bss &&
3463 (wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
3464 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
3466 * Use shorter timeout if going through WPS AP iteration
3467 * for PIN config method with an AP that does not
3468 * advertise Selected Registrar.
3470 struct wpabuf *wps_ie;
3472 wps_ie = wpa_bss_get_vendor_ie_multi(
3473 wpa_s->current_bss, WPS_IE_VENDOR_TYPE);
3475 !wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1))
3477 wpabuf_free(wps_ie);
3479 #endif /* CONFIG_WPS */
3481 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
3483 wpa_s->eapol_received++;
3485 if (wpa_s->countermeasures) {
3486 wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped "
3491 #ifdef CONFIG_IBSS_RSN
3492 if (wpa_s->current_ssid &&
3493 wpa_s->current_ssid->mode == WPAS_MODE_IBSS) {
3494 ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len);
3497 #endif /* CONFIG_IBSS_RSN */
3499 /* Source address of the incoming EAPOL frame could be compared to the
3500 * current BSSID. However, it is possible that a centralized
3501 * Authenticator could be using another MAC address than the BSSID of
3502 * an AP, so just allow any address to be used for now. The replies are
3503 * still sent to the current BSSID (if available), though. */
3505 os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN);
3506 if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) &&
3507 eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0)
3509 wpa_drv_poll(wpa_s);
3510 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
3511 wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len);
3512 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3514 * Set portValid = TRUE here since we are going to skip 4-way
3515 * handshake processing which would normally set portValid. We
3516 * need this to allow the EAPOL state machines to be completed
3517 * without going through EAPOL-Key handshake.
3519 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3524 int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s)
3526 if ((!wpa_s->p2p_mgmt ||
3527 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
3528 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) {
3529 l2_packet_deinit(wpa_s->l2);
3530 wpa_s->l2 = l2_packet_init(wpa_s->ifname,
3531 wpa_drv_get_mac_addr(wpa_s),
3533 wpa_supplicant_rx_eapol, wpa_s, 0);
3534 if (wpa_s->l2 == NULL)
3537 const u8 *addr = wpa_drv_get_mac_addr(wpa_s);
3539 os_memcpy(wpa_s->own_addr, addr, ETH_ALEN);
3542 if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) {
3543 wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address");
3547 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3553 static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr,
3554 const u8 *buf, size_t len)
3556 struct wpa_supplicant *wpa_s = ctx;
3557 const struct l2_ethhdr *eth;
3559 if (len < sizeof(*eth))
3561 eth = (const struct l2_ethhdr *) buf;
3563 if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 &&
3564 !(eth->h_dest[0] & 0x01)) {
3565 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3566 " (bridge - not for this interface - ignore)",
3567 MAC2STR(src_addr), MAC2STR(eth->h_dest));
3571 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3572 " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest));
3573 wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth),
3574 len - sizeof(*eth));
3579 * wpa_supplicant_driver_init - Initialize driver interface parameters
3580 * @wpa_s: Pointer to wpa_supplicant data
3581 * Returns: 0 on success, -1 on failure
3583 * This function is called to initialize driver interface parameters.
3584 * wpa_drv_init() must have been called before this function to initialize the
3587 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
3589 static int interface_count = 0;
3591 if (wpa_supplicant_update_mac_addr(wpa_s) < 0)
3594 wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR,
3595 MAC2STR(wpa_s->own_addr));
3596 os_memcpy(wpa_s->perm_addr, wpa_s->own_addr, ETH_ALEN);
3597 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3599 if (wpa_s->bridge_ifname[0]) {
3600 wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge "
3601 "interface '%s'", wpa_s->bridge_ifname);
3602 wpa_s->l2_br = l2_packet_init_bridge(
3603 wpa_s->bridge_ifname, wpa_s->ifname, wpa_s->own_addr,
3604 ETH_P_EAPOL, wpa_supplicant_rx_eapol_bridge, wpa_s, 1);
3605 if (wpa_s->l2_br == NULL) {
3606 wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet "
3607 "connection for the bridge interface '%s'",
3608 wpa_s->bridge_ifname);
3613 if (wpa_s->conf->ap_scan == 2 &&
3614 os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
3615 wpa_printf(MSG_INFO,
3616 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
3619 wpa_clear_keys(wpa_s, NULL);
3621 /* Make sure that TKIP countermeasures are not left enabled (could
3622 * happen if wpa_supplicant is killed during countermeasures. */
3623 wpa_drv_set_countermeasures(wpa_s, 0);
3625 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver");
3626 wpa_drv_flush_pmkid(wpa_s);
3628 wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
3629 wpa_s->prev_scan_wildcard = 0;
3631 if (wpa_supplicant_enabled_networks(wpa_s)) {
3632 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3633 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3634 interface_count = 0;
3637 if (!wpa_s->p2p_mgmt &&
3638 wpa_supplicant_delayed_sched_scan(wpa_s,
3639 interface_count % 3,
3641 wpa_supplicant_req_scan(wpa_s, interface_count % 3,
3643 #endif /* ANDROID */
3646 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
3652 static int wpa_supplicant_daemon(const char *pid_file)
3654 wpa_printf(MSG_DEBUG, "Daemonize..");
3655 return os_daemonize(pid_file);
3659 static struct wpa_supplicant *
3660 wpa_supplicant_alloc(struct wpa_supplicant *parent)
3662 struct wpa_supplicant *wpa_s;
3664 wpa_s = os_zalloc(sizeof(*wpa_s));
3667 wpa_s->scan_req = INITIAL_SCAN_REQ;
3668 wpa_s->scan_interval = 5;
3669 wpa_s->new_connection = 1;
3670 wpa_s->parent = parent ? parent : wpa_s;
3671 wpa_s->p2pdev = wpa_s->parent;
3672 wpa_s->sched_scanning = 0;
3674 dl_list_init(&wpa_s->bss_tmp_disallowed);
3680 #ifdef CONFIG_HT_OVERRIDES
3682 static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s,
3683 struct ieee80211_ht_capabilities *htcaps,
3684 struct ieee80211_ht_capabilities *htcaps_mask,
3687 /* parse ht_mcs into hex array */
3689 const char *tmp = ht_mcs;
3692 /* If ht_mcs is null, do not set anything */
3696 /* This is what we are setting in the kernel */
3697 os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN);
3699 wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs);
3701 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3703 long v = strtol(tmp, &end, 16);
3705 wpa_msg(wpa_s, MSG_DEBUG,
3706 "htcap value[%i]: %ld end: %p tmp: %p",
3711 htcaps->supported_mcs_set[i] = v;
3714 wpa_msg(wpa_s, MSG_ERROR,
3715 "Failed to parse ht-mcs: %s, error: %s\n",
3716 ht_mcs, strerror(errno));
3722 * If we were able to parse any values, then set mask for the MCS set.
3725 os_memset(&htcaps_mask->supported_mcs_set, 0xff,
3726 IEEE80211_HT_MCS_MASK_LEN - 1);
3727 /* skip the 3 reserved bits */
3728 htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] =
3736 static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s,
3737 struct ieee80211_ht_capabilities *htcaps,
3738 struct ieee80211_ht_capabilities *htcaps_mask,
3743 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled);
3748 msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE);
3749 htcaps_mask->ht_capabilities_info |= msk;
3751 htcaps->ht_capabilities_info &= msk;
3753 htcaps->ht_capabilities_info |= msk;
3759 static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s,
3760 struct ieee80211_ht_capabilities *htcaps,
3761 struct ieee80211_ht_capabilities *htcaps_mask,
3764 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor);
3769 if (factor < 0 || factor > 3) {
3770 wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. "
3771 "Must be 0-3 or -1", factor);
3775 htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */
3776 htcaps->a_mpdu_params &= ~0x3;
3777 htcaps->a_mpdu_params |= factor & 0x3;
3783 static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s,
3784 struct ieee80211_ht_capabilities *htcaps,
3785 struct ieee80211_ht_capabilities *htcaps_mask,
3788 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density);
3793 if (density < 0 || density > 7) {
3794 wpa_msg(wpa_s, MSG_ERROR,
3795 "ampdu_density: %d out of range. Must be 0-7 or -1.",
3800 htcaps_mask->a_mpdu_params |= 0x1C;
3801 htcaps->a_mpdu_params &= ~(0x1C);
3802 htcaps->a_mpdu_params |= (density << 2) & 0x1C;
3808 static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s,
3809 struct ieee80211_ht_capabilities *htcaps,
3810 struct ieee80211_ht_capabilities *htcaps_mask,
3813 /* Masking these out disables HT40 */
3814 le16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET |
3815 HT_CAP_INFO_SHORT_GI40MHZ);
3817 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled);
3820 htcaps->ht_capabilities_info &= ~msk;
3822 htcaps->ht_capabilities_info |= msk;
3824 htcaps_mask->ht_capabilities_info |= msk;
3830 static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s,
3831 struct ieee80211_ht_capabilities *htcaps,
3832 struct ieee80211_ht_capabilities *htcaps_mask,
3835 /* Masking these out disables SGI */
3836 le16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ |
3837 HT_CAP_INFO_SHORT_GI40MHZ);
3839 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled);
3842 htcaps->ht_capabilities_info &= ~msk;
3844 htcaps->ht_capabilities_info |= msk;
3846 htcaps_mask->ht_capabilities_info |= msk;
3852 static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s,
3853 struct ieee80211_ht_capabilities *htcaps,
3854 struct ieee80211_ht_capabilities *htcaps_mask,
3857 /* Masking these out disables LDPC */
3858 le16 msk = host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP);
3860 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ldpc: %d", disabled);
3863 htcaps->ht_capabilities_info &= ~msk;
3865 htcaps->ht_capabilities_info |= msk;
3867 htcaps_mask->ht_capabilities_info |= msk;
3873 void wpa_supplicant_apply_ht_overrides(
3874 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3875 struct wpa_driver_associate_params *params)
3877 struct ieee80211_ht_capabilities *htcaps;
3878 struct ieee80211_ht_capabilities *htcaps_mask;
3883 params->disable_ht = ssid->disable_ht;
3884 if (!params->htcaps || !params->htcaps_mask)
3887 htcaps = (struct ieee80211_ht_capabilities *) params->htcaps;
3888 htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask;
3889 wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs);
3890 wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask,
3891 ssid->disable_max_amsdu);
3892 wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor);
3893 wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density);
3894 wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40);
3895 wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi);
3896 wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc);
3898 if (ssid->ht40_intolerant) {
3899 le16 bit = host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT);
3900 htcaps->ht_capabilities_info |= bit;
3901 htcaps_mask->ht_capabilities_info |= bit;
3905 #endif /* CONFIG_HT_OVERRIDES */
3908 #ifdef CONFIG_VHT_OVERRIDES
3909 void wpa_supplicant_apply_vht_overrides(
3910 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3911 struct wpa_driver_associate_params *params)
3913 struct ieee80211_vht_capabilities *vhtcaps;
3914 struct ieee80211_vht_capabilities *vhtcaps_mask;
3919 params->disable_vht = ssid->disable_vht;
3921 vhtcaps = (void *) params->vhtcaps;
3922 vhtcaps_mask = (void *) params->vhtcaps_mask;
3924 if (!vhtcaps || !vhtcaps_mask)
3927 vhtcaps->vht_capabilities_info = host_to_le32(ssid->vht_capa);
3928 vhtcaps_mask->vht_capabilities_info = host_to_le32(ssid->vht_capa_mask);
3930 #ifdef CONFIG_HT_OVERRIDES
3931 /* if max ampdu is <= 3, we have to make the HT cap the same */
3932 if (ssid->vht_capa_mask & VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) {
3935 max_ampdu = (ssid->vht_capa &
3936 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) >>
3937 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX_SHIFT;
3939 max_ampdu = max_ampdu < 3 ? max_ampdu : 3;
3940 wpa_set_ampdu_factor(wpa_s,
3941 (void *) params->htcaps,
3942 (void *) params->htcaps_mask,
3945 #endif /* CONFIG_HT_OVERRIDES */
3947 #define OVERRIDE_MCS(i) \
3948 if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \
3949 vhtcaps_mask->vht_supported_mcs_set.tx_map |= \
3950 host_to_le16(3 << 2 * (i - 1)); \
3951 vhtcaps->vht_supported_mcs_set.tx_map |= \
3952 host_to_le16(ssid->vht_tx_mcs_nss_ ##i << \
3955 if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \
3956 vhtcaps_mask->vht_supported_mcs_set.rx_map |= \
3957 host_to_le16(3 << 2 * (i - 1)); \
3958 vhtcaps->vht_supported_mcs_set.rx_map |= \
3959 host_to_le16(ssid->vht_rx_mcs_nss_ ##i << \
3972 #endif /* CONFIG_VHT_OVERRIDES */
3975 static int pcsc_reader_init(struct wpa_supplicant *wpa_s)
3980 if (!wpa_s->conf->pcsc_reader)
3983 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
3987 if (wpa_s->conf->pcsc_pin &&
3988 scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) {
3989 scard_deinit(wpa_s->scard);
3990 wpa_s->scard = NULL;
3991 wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed");
3995 len = sizeof(wpa_s->imsi) - 1;
3996 if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) {
3997 scard_deinit(wpa_s->scard);
3998 wpa_s->scard = NULL;
3999 wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI");
4002 wpa_s->imsi[len] = '\0';
4004 wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard);
4006 wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)",
4007 wpa_s->imsi, wpa_s->mnc_len);
4009 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
4010 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
4011 #endif /* PCSC_FUNCS */
4017 int wpas_init_ext_pw(struct wpa_supplicant *wpa_s)
4021 ext_password_deinit(wpa_s->ext_pw);
4022 wpa_s->ext_pw = NULL;
4023 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL);
4025 if (!wpa_s->conf->ext_password_backend)
4028 val = os_strdup(wpa_s->conf->ext_password_backend);
4031 pos = os_strchr(val, ':');
4035 wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val);
4037 wpa_s->ext_pw = ext_password_init(val, pos);
4039 if (wpa_s->ext_pw == NULL) {
4040 wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend");
4043 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw);
4051 static const u8 * wpas_fst_get_bssid_cb(void *ctx)
4053 struct wpa_supplicant *wpa_s = ctx;
4055 return (is_zero_ether_addr(wpa_s->bssid) ||
4056 wpa_s->wpa_state != WPA_COMPLETED) ? NULL : wpa_s->bssid;
4060 static void wpas_fst_get_channel_info_cb(void *ctx,
4061 enum hostapd_hw_mode *hw_mode,
4064 struct wpa_supplicant *wpa_s = ctx;
4066 if (wpa_s->current_bss) {
4067 *hw_mode = ieee80211_freq_to_chan(wpa_s->current_bss->freq,
4069 } else if (wpa_s->hw.num_modes) {
4070 *hw_mode = wpa_s->hw.modes[0].mode;
4078 static int wpas_fst_get_hw_modes(void *ctx, struct hostapd_hw_modes **modes)
4080 struct wpa_supplicant *wpa_s = ctx;
4082 *modes = wpa_s->hw.modes;
4083 return wpa_s->hw.num_modes;
4087 static void wpas_fst_set_ies_cb(void *ctx, const struct wpabuf *fst_ies)
4089 struct wpa_supplicant *wpa_s = ctx;
4091 wpa_hexdump_buf(MSG_DEBUG, "FST: Set IEs", fst_ies);
4092 wpa_s->fst_ies = fst_ies;
4096 static int wpas_fst_send_action_cb(void *ctx, const u8 *da, struct wpabuf *data)
4098 struct wpa_supplicant *wpa_s = ctx;
4100 WPA_ASSERT(os_memcmp(wpa_s->bssid, da, ETH_ALEN) == 0);
4101 return wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
4102 wpa_s->own_addr, wpa_s->bssid,
4103 wpabuf_head(data), wpabuf_len(data),
4108 static const struct wpabuf * wpas_fst_get_mb_ie_cb(void *ctx, const u8 *addr)
4110 struct wpa_supplicant *wpa_s = ctx;
4112 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
4113 return wpa_s->received_mb_ies;
4117 static void wpas_fst_update_mb_ie_cb(void *ctx, const u8 *addr,
4118 const u8 *buf, size_t size)
4120 struct wpa_supplicant *wpa_s = ctx;
4121 struct mb_ies_info info;
4123 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
4125 if (!mb_ies_info_by_ies(&info, buf, size)) {
4126 wpabuf_free(wpa_s->received_mb_ies);
4127 wpa_s->received_mb_ies = mb_ies_by_info(&info);
4132 static const u8 * wpas_fst_get_peer_first(void *ctx,
4133 struct fst_get_peer_ctx **get_ctx,
4136 struct wpa_supplicant *wpa_s = ctx;
4139 if (!is_zero_ether_addr(wpa_s->bssid))
4140 return (wpa_s->received_mb_ies || !mb_only) ?
4141 wpa_s->bssid : NULL;
4146 static const u8 * wpas_fst_get_peer_next(void *ctx,
4147 struct fst_get_peer_ctx **get_ctx,
4153 void fst_wpa_supplicant_fill_iface_obj(struct wpa_supplicant *wpa_s,
4154 struct fst_wpa_obj *iface_obj)
4156 iface_obj->ctx = wpa_s;
4157 iface_obj->get_bssid = wpas_fst_get_bssid_cb;
4158 iface_obj->get_channel_info = wpas_fst_get_channel_info_cb;
4159 iface_obj->get_hw_modes = wpas_fst_get_hw_modes;
4160 iface_obj->set_ies = wpas_fst_set_ies_cb;
4161 iface_obj->send_action = wpas_fst_send_action_cb;
4162 iface_obj->get_mb_ie = wpas_fst_get_mb_ie_cb;
4163 iface_obj->update_mb_ie = wpas_fst_update_mb_ie_cb;
4164 iface_obj->get_peer_first = wpas_fst_get_peer_first;
4165 iface_obj->get_peer_next = wpas_fst_get_peer_next;
4167 #endif /* CONFIG_FST */
4169 static int wpas_set_wowlan_triggers(struct wpa_supplicant *wpa_s,
4170 const struct wpa_driver_capa *capa)
4172 struct wowlan_triggers *triggers;
4175 if (!wpa_s->conf->wowlan_triggers)
4178 triggers = wpa_get_wowlan_triggers(wpa_s->conf->wowlan_triggers, capa);
4180 ret = wpa_drv_wowlan(wpa_s, triggers);
4187 enum wpa_radio_work_band wpas_freq_to_band(int freq)
4190 return BAND_2_4_GHZ;
4197 unsigned int wpas_get_bands(struct wpa_supplicant *wpa_s, const int *freqs)
4200 unsigned int band = 0;
4203 /* freqs are specified for the radio work */
4204 for (i = 0; freqs[i]; i++)
4205 band |= wpas_freq_to_band(freqs[i]);
4208 * freqs are not specified, implies all
4209 * the supported freqs by HW
4211 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4212 if (wpa_s->hw.modes[i].num_channels != 0) {
4213 if (wpa_s->hw.modes[i].mode ==
4214 HOSTAPD_MODE_IEEE80211B ||
4215 wpa_s->hw.modes[i].mode ==
4216 HOSTAPD_MODE_IEEE80211G)
4217 band |= BAND_2_4_GHZ;
4218 else if (wpa_s->hw.modes[i].mode ==
4219 HOSTAPD_MODE_IEEE80211A)
4221 else if (wpa_s->hw.modes[i].mode ==
4222 HOSTAPD_MODE_IEEE80211AD)
4223 band |= BAND_60_GHZ;
4224 else if (wpa_s->hw.modes[i].mode ==
4225 HOSTAPD_MODE_IEEE80211ANY)
4226 band = BAND_2_4_GHZ | BAND_5_GHZ |
4236 static struct wpa_radio * radio_add_interface(struct wpa_supplicant *wpa_s,
4239 struct wpa_supplicant *iface = wpa_s->global->ifaces;
4240 struct wpa_radio *radio;
4242 while (rn && iface) {
4243 radio = iface->radio;
4244 if (radio && os_strcmp(rn, radio->name) == 0) {
4245 wpa_printf(MSG_DEBUG, "Add interface %s to existing radio %s",
4247 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
4251 iface = iface->next;
4254 wpa_printf(MSG_DEBUG, "Add interface %s to a new radio %s",
4255 wpa_s->ifname, rn ? rn : "N/A");
4256 radio = os_zalloc(sizeof(*radio));
4261 os_strlcpy(radio->name, rn, sizeof(radio->name));
4262 dl_list_init(&radio->ifaces);
4263 dl_list_init(&radio->work);
4264 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
4270 static void radio_work_free(struct wpa_radio_work *work)
4272 if (work->wpa_s->scan_work == work) {
4273 /* This should not really happen. */
4274 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work",
4275 work->type, work, work->started);
4276 work->wpa_s->scan_work = NULL;
4280 if (work->wpa_s->p2p_scan_work == work) {
4281 /* This should not really happen. */
4282 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work",
4283 work->type, work, work->started);
4284 work->wpa_s->p2p_scan_work = NULL;
4286 #endif /* CONFIG_P2P */
4288 if (work->started) {
4289 work->wpa_s->radio->num_active_works--;
4290 wpa_dbg(work->wpa_s, MSG_DEBUG,
4291 "radio_work_free('%s'@%p: num_active_works --> %u",
4293 work->wpa_s->radio->num_active_works);
4296 dl_list_del(&work->list);
4301 static struct wpa_radio_work * radio_work_get_next_work(struct wpa_radio *radio)
4303 struct wpa_radio_work *active_work = NULL;
4304 struct wpa_radio_work *tmp;
4306 /* Get the active work to know the type and band. */
4307 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) {
4315 /* No active work, start one */
4316 radio->num_active_works = 0;
4317 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work,
4319 if (os_strcmp(tmp->type, "scan") == 0 &&
4320 radio->external_scan_running &&
4321 (((struct wpa_driver_scan_params *)
4322 tmp->ctx)->only_new_results ||
4323 tmp->wpa_s->clear_driver_scan_cache))
4330 if (os_strcmp(active_work->type, "sme-connect") == 0 ||
4331 os_strcmp(active_work->type, "connect") == 0) {
4333 * If the active work is either connect or sme-connect,
4334 * do not parallelize them with other radio works.
4336 wpa_dbg(active_work->wpa_s, MSG_DEBUG,
4337 "Do not parallelize radio work with %s",
4342 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) {
4347 * If connect or sme-connect are enqueued, parallelize only
4348 * those operations ahead of them in the queue.
4350 if (os_strcmp(tmp->type, "connect") == 0 ||
4351 os_strcmp(tmp->type, "sme-connect") == 0)
4355 * Check that the radio works are distinct and
4356 * on different bands.
4358 if (os_strcmp(active_work->type, tmp->type) != 0 &&
4359 (active_work->bands != tmp->bands)) {
4361 * If a scan has to be scheduled through nl80211 scan
4362 * interface and if an external scan is already running,
4363 * do not schedule the scan since it is likely to get
4364 * rejected by kernel.
4366 if (os_strcmp(tmp->type, "scan") == 0 &&
4367 radio->external_scan_running &&
4368 (((struct wpa_driver_scan_params *)
4369 tmp->ctx)->only_new_results ||
4370 tmp->wpa_s->clear_driver_scan_cache))
4373 wpa_dbg(active_work->wpa_s, MSG_DEBUG,
4374 "active_work:%s new_work:%s",
4375 active_work->type, tmp->type);
4380 /* Did not find a radio work to schedule in parallel. */
4385 static void radio_start_next_work(void *eloop_ctx, void *timeout_ctx)
4387 struct wpa_radio *radio = eloop_ctx;
4388 struct wpa_radio_work *work;
4389 struct os_reltime now, diff;
4390 struct wpa_supplicant *wpa_s;
4392 work = dl_list_first(&radio->work, struct wpa_radio_work, list);
4394 radio->num_active_works = 0;
4398 wpa_s = dl_list_first(&radio->ifaces, struct wpa_supplicant,
4402 wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)) {
4404 return; /* already started and still in progress */
4406 if (wpa_s && wpa_s->radio->external_scan_running) {
4407 wpa_printf(MSG_DEBUG, "Delay radio work start until externally triggered scan completes");
4412 if (radio->num_active_works < MAX_ACTIVE_WORKS) {
4413 /* get the work to schedule next */
4414 work = radio_work_get_next_work(radio);
4420 wpa_s = work->wpa_s;
4421 os_get_reltime(&now);
4422 os_reltime_sub(&now, &work->time, &diff);
4423 wpa_dbg(wpa_s, MSG_DEBUG,
4424 "Starting radio work '%s'@%p after %ld.%06ld second wait",
4425 work->type, work, diff.sec, diff.usec);
4428 radio->num_active_works++;
4432 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS) &&
4433 radio->num_active_works < MAX_ACTIVE_WORKS)
4434 radio_work_check_next(wpa_s);
4439 * This function removes both started and pending radio works running on
4440 * the provided interface's radio.
4441 * Prior to the removal of the radio work, its callback (cb) is called with
4442 * deinit set to be 1. Each work's callback is responsible for clearing its
4443 * internal data and restoring to a correct state.
4444 * @wpa_s: wpa_supplicant data
4445 * @type: type of works to be removed
4446 * @remove_all: 1 to remove all the works on this radio, 0 to remove only
4447 * this interface's works.
4449 void radio_remove_works(struct wpa_supplicant *wpa_s,
4450 const char *type, int remove_all)
4452 struct wpa_radio_work *work, *tmp;
4453 struct wpa_radio *radio = wpa_s->radio;
4455 dl_list_for_each_safe(work, tmp, &radio->work, struct wpa_radio_work,
4457 if (type && os_strcmp(type, work->type) != 0)
4460 /* skip other ifaces' works */
4461 if (!remove_all && work->wpa_s != wpa_s)
4464 wpa_dbg(wpa_s, MSG_DEBUG, "Remove radio work '%s'@%p%s",
4465 work->type, work, work->started ? " (started)" : "");
4467 radio_work_free(work);
4470 /* in case we removed the started work */
4471 radio_work_check_next(wpa_s);
4475 static void radio_remove_interface(struct wpa_supplicant *wpa_s)
4477 struct wpa_radio *radio = wpa_s->radio;
4482 wpa_printf(MSG_DEBUG, "Remove interface %s from radio %s",
4483 wpa_s->ifname, radio->name);
4484 dl_list_del(&wpa_s->radio_list);
4485 radio_remove_works(wpa_s, NULL, 0);
4486 wpa_s->radio = NULL;
4487 if (!dl_list_empty(&radio->ifaces))
4488 return; /* Interfaces remain for this radio */
4490 wpa_printf(MSG_DEBUG, "Remove radio %s", radio->name);
4491 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4496 void radio_work_check_next(struct wpa_supplicant *wpa_s)
4498 struct wpa_radio *radio = wpa_s->radio;
4500 if (dl_list_empty(&radio->work))
4502 if (wpa_s->ext_work_in_progress) {
4503 wpa_printf(MSG_DEBUG,
4504 "External radio work in progress - delay start of pending item");
4507 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4508 eloop_register_timeout(0, 0, radio_start_next_work, radio, NULL);
4513 * radio_add_work - Add a radio work item
4514 * @wpa_s: Pointer to wpa_supplicant data
4515 * @freq: Frequency of the offchannel operation in MHz or 0
4516 * @type: Unique identifier for each type of work
4517 * @next: Force as the next work to be executed
4518 * @cb: Callback function for indicating when radio is available
4519 * @ctx: Context pointer for the work (work->ctx in cb())
4520 * Returns: 0 on success, -1 on failure
4522 * This function is used to request time for an operation that requires
4523 * exclusive radio control. Once the radio is available, the registered callback
4524 * function will be called. radio_work_done() must be called once the exclusive
4525 * radio operation has been completed, so that the radio is freed for other
4526 * operations. The special case of deinit=1 is used to free the context data
4527 * during interface removal. That does not allow the callback function to start
4528 * the radio operation, i.e., it must free any resources allocated for the radio
4531 * The @freq parameter can be used to indicate a single channel on which the
4532 * offchannel operation will occur. This may allow multiple radio work
4533 * operations to be performed in parallel if they apply for the same channel.
4534 * Setting this to 0 indicates that the work item may use multiple channels or
4535 * requires exclusive control of the radio.
4537 int radio_add_work(struct wpa_supplicant *wpa_s, unsigned int freq,
4538 const char *type, int next,
4539 void (*cb)(struct wpa_radio_work *work, int deinit),
4542 struct wpa_radio *radio = wpa_s->radio;
4543 struct wpa_radio_work *work;
4546 work = os_zalloc(sizeof(*work));
4549 wpa_dbg(wpa_s, MSG_DEBUG, "Add radio work '%s'@%p", type, work);
4550 os_get_reltime(&work->time);
4553 work->wpa_s = wpa_s;
4558 work->bands = wpas_freq_to_band(freq);
4559 else if (os_strcmp(type, "scan") == 0 ||
4560 os_strcmp(type, "p2p-scan") == 0)
4561 work->bands = wpas_get_bands(wpa_s,
4562 ((struct wpa_driver_scan_params *)
4565 work->bands = wpas_get_bands(wpa_s, NULL);
4567 was_empty = dl_list_empty(&wpa_s->radio->work);
4569 dl_list_add(&wpa_s->radio->work, &work->list);
4571 dl_list_add_tail(&wpa_s->radio->work, &work->list);
4573 wpa_dbg(wpa_s, MSG_DEBUG, "First radio work item in the queue - schedule start immediately");
4574 radio_work_check_next(wpa_s);
4575 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)
4576 && radio->num_active_works < MAX_ACTIVE_WORKS) {
4577 wpa_dbg(wpa_s, MSG_DEBUG,
4578 "Try to schedule a radio work (num_active_works=%u)",
4579 radio->num_active_works);
4580 radio_work_check_next(wpa_s);
4588 * radio_work_done - Indicate that a radio work item has been completed
4589 * @work: Completed work
4591 * This function is called once the callback function registered with
4592 * radio_add_work() has completed its work.
4594 void radio_work_done(struct wpa_radio_work *work)
4596 struct wpa_supplicant *wpa_s = work->wpa_s;
4597 struct os_reltime now, diff;
4598 unsigned int started = work->started;
4600 os_get_reltime(&now);
4601 os_reltime_sub(&now, &work->time, &diff);
4602 wpa_dbg(wpa_s, MSG_DEBUG, "Radio work '%s'@%p %s in %ld.%06ld seconds",
4603 work->type, work, started ? "done" : "canceled",
4604 diff.sec, diff.usec);
4605 radio_work_free(work);
4607 radio_work_check_next(wpa_s);
4611 struct wpa_radio_work *
4612 radio_work_pending(struct wpa_supplicant *wpa_s, const char *type)
4614 struct wpa_radio_work *work;
4615 struct wpa_radio *radio = wpa_s->radio;
4617 dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) {
4618 if (work->wpa_s == wpa_s && os_strcmp(work->type, type) == 0)
4626 static int wpas_init_driver(struct wpa_supplicant *wpa_s,
4627 struct wpa_interface *iface)
4629 const char *ifname, *driver, *rn;
4631 driver = iface->driver;
4633 if (wpa_supplicant_set_driver(wpa_s, driver) < 0)
4636 wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname);
4637 if (wpa_s->drv_priv == NULL) {
4639 pos = driver ? os_strchr(driver, ',') : NULL;
4641 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
4642 "driver interface - try next driver wrapper");
4646 wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver "
4650 if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) {
4651 wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected "
4652 "driver_param '%s'", wpa_s->conf->driver_param);
4656 ifname = wpa_drv_get_ifname(wpa_s);
4657 if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) {
4658 wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced "
4659 "interface name with '%s'", ifname);
4660 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
4663 rn = wpa_driver_get_radio_name(wpa_s);
4664 if (rn && rn[0] == '\0')
4667 wpa_s->radio = radio_add_interface(wpa_s, rn);
4668 if (wpa_s->radio == NULL)
4675 static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
4676 struct wpa_interface *iface)
4678 struct wpa_driver_capa capa;
4681 wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver "
4682 "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname,
4683 iface->confname ? iface->confname : "N/A",
4684 iface->driver ? iface->driver : "default",
4685 iface->ctrl_interface ? iface->ctrl_interface : "N/A",
4686 iface->bridge_ifname ? iface->bridge_ifname : "N/A");
4688 if (iface->confname) {
4689 #ifdef CONFIG_BACKEND_FILE
4690 wpa_s->confname = os_rel2abs_path(iface->confname);
4691 if (wpa_s->confname == NULL) {
4692 wpa_printf(MSG_ERROR, "Failed to get absolute path "
4693 "for configuration file '%s'.",
4697 wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'",
4698 iface->confname, wpa_s->confname);
4699 #else /* CONFIG_BACKEND_FILE */
4700 wpa_s->confname = os_strdup(iface->confname);
4701 #endif /* CONFIG_BACKEND_FILE */
4702 wpa_s->conf = wpa_config_read(wpa_s->confname, NULL);
4703 if (wpa_s->conf == NULL) {
4704 wpa_printf(MSG_ERROR, "Failed to read or parse "
4705 "configuration '%s'.", wpa_s->confname);
4708 wpa_s->confanother = os_rel2abs_path(iface->confanother);
4709 wpa_config_read(wpa_s->confanother, wpa_s->conf);
4712 * Override ctrl_interface and driver_param if set on command
4715 if (iface->ctrl_interface) {
4716 os_free(wpa_s->conf->ctrl_interface);
4717 wpa_s->conf->ctrl_interface =
4718 os_strdup(iface->ctrl_interface);
4721 if (iface->driver_param) {
4722 os_free(wpa_s->conf->driver_param);
4723 wpa_s->conf->driver_param =
4724 os_strdup(iface->driver_param);
4727 if (iface->p2p_mgmt && !iface->ctrl_interface) {
4728 os_free(wpa_s->conf->ctrl_interface);
4729 wpa_s->conf->ctrl_interface = NULL;
4732 wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface,
4733 iface->driver_param);
4735 if (wpa_s->conf == NULL) {
4736 wpa_printf(MSG_ERROR, "\nNo configuration found.");
4740 if (iface->ifname == NULL) {
4741 wpa_printf(MSG_ERROR, "\nInterface name is required.");
4744 if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) {
4745 wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.",
4749 os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname));
4751 if (iface->bridge_ifname) {
4752 if (os_strlen(iface->bridge_ifname) >=
4753 sizeof(wpa_s->bridge_ifname)) {
4754 wpa_printf(MSG_ERROR, "\nToo long bridge interface "
4755 "name '%s'.", iface->bridge_ifname);
4758 os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname,
4759 sizeof(wpa_s->bridge_ifname));
4762 /* RSNA Supplicant Key Management - INITIALIZE */
4763 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
4764 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
4766 /* Initialize driver interface and register driver event handler before
4767 * L2 receive handler so that association events are processed before
4768 * EAPOL-Key packets if both become available for the same select()
4770 if (wpas_init_driver(wpa_s, iface) < 0)
4773 if (wpa_supplicant_init_wpa(wpa_s) < 0)
4776 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname,
4777 wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname :
4779 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
4781 if (wpa_s->conf->dot11RSNAConfigPMKLifetime &&
4782 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
4783 wpa_s->conf->dot11RSNAConfigPMKLifetime)) {
4784 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4785 "dot11RSNAConfigPMKLifetime");
4789 if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold &&
4790 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
4791 wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) {
4792 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4793 "dot11RSNAConfigPMKReauthThreshold");
4797 if (wpa_s->conf->dot11RSNAConfigSATimeout &&
4798 wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT,
4799 wpa_s->conf->dot11RSNAConfigSATimeout)) {
4800 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4801 "dot11RSNAConfigSATimeout");
4805 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s,
4806 &wpa_s->hw.num_modes,
4808 if (wpa_s->hw.modes) {
4811 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4812 if (wpa_s->hw.modes[i].vht_capab) {
4813 wpa_s->hw_capab = CAPAB_VHT;
4817 if (wpa_s->hw.modes[i].ht_capab &
4818 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)
4819 wpa_s->hw_capab = CAPAB_HT40;
4820 else if (wpa_s->hw.modes[i].ht_capab &&
4821 wpa_s->hw_capab == CAPAB_NO_HT_VHT)
4822 wpa_s->hw_capab = CAPAB_HT;
4826 capa_res = wpa_drv_get_capa(wpa_s, &capa);
4827 if (capa_res == 0) {
4828 wpa_s->drv_capa_known = 1;
4829 wpa_s->drv_flags = capa.flags;
4830 wpa_s->drv_enc = capa.enc;
4831 wpa_s->drv_smps_modes = capa.smps_modes;
4832 wpa_s->drv_rrm_flags = capa.rrm_flags;
4833 wpa_s->probe_resp_offloads = capa.probe_resp_offloads;
4834 wpa_s->max_scan_ssids = capa.max_scan_ssids;
4835 wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids;
4836 wpa_s->max_sched_scan_plans = capa.max_sched_scan_plans;
4837 wpa_s->max_sched_scan_plan_interval =
4838 capa.max_sched_scan_plan_interval;
4839 wpa_s->max_sched_scan_plan_iterations =
4840 capa.max_sched_scan_plan_iterations;
4841 wpa_s->sched_scan_supported = capa.sched_scan_supported;
4842 wpa_s->max_match_sets = capa.max_match_sets;
4843 wpa_s->max_remain_on_chan = capa.max_remain_on_chan;
4844 wpa_s->max_stations = capa.max_stations;
4845 wpa_s->extended_capa = capa.extended_capa;
4846 wpa_s->extended_capa_mask = capa.extended_capa_mask;
4847 wpa_s->extended_capa_len = capa.extended_capa_len;
4848 wpa_s->num_multichan_concurrent =
4849 capa.num_multichan_concurrent;
4850 wpa_s->wmm_ac_supported = capa.wmm_ac_supported;
4852 if (capa.mac_addr_rand_scan_supported)
4853 wpa_s->mac_addr_rand_supported |= MAC_ADDR_RAND_SCAN;
4854 if (wpa_s->sched_scan_supported &&
4855 capa.mac_addr_rand_sched_scan_supported)
4856 wpa_s->mac_addr_rand_supported |=
4857 (MAC_ADDR_RAND_SCHED_SCAN | MAC_ADDR_RAND_PNO);
4859 if (wpa_s->max_remain_on_chan == 0)
4860 wpa_s->max_remain_on_chan = 1000;
4863 * Only take p2p_mgmt parameters when P2P Device is supported.
4864 * Doing it here as it determines whether l2_packet_init() will be done
4865 * during wpa_supplicant_driver_init().
4867 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
4868 wpa_s->p2p_mgmt = iface->p2p_mgmt;
4870 iface->p2p_mgmt = 1;
4872 if (wpa_s->num_multichan_concurrent == 0)
4873 wpa_s->num_multichan_concurrent = 1;
4875 if (wpa_supplicant_driver_init(wpa_s) < 0)
4879 if ((!iface->p2p_mgmt ||
4880 !(wpa_s->drv_flags &
4881 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
4882 wpa_tdls_init(wpa_s->wpa))
4884 #endif /* CONFIG_TDLS */
4886 if (wpa_s->conf->country[0] && wpa_s->conf->country[1] &&
4887 wpa_drv_set_country(wpa_s, wpa_s->conf->country)) {
4888 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country");
4893 if (wpa_s->conf->fst_group_id) {
4894 struct fst_iface_cfg cfg;
4895 struct fst_wpa_obj iface_obj;
4897 fst_wpa_supplicant_fill_iface_obj(wpa_s, &iface_obj);
4898 os_strlcpy(cfg.group_id, wpa_s->conf->fst_group_id,
4899 sizeof(cfg.group_id));
4900 cfg.priority = wpa_s->conf->fst_priority;
4901 cfg.llt = wpa_s->conf->fst_llt;
4903 wpa_s->fst = fst_attach(wpa_s->ifname, wpa_s->own_addr,
4906 wpa_msg(wpa_s, MSG_ERROR,
4907 "FST: Cannot attach iface %s to group %s",
4908 wpa_s->ifname, cfg.group_id);
4912 #endif /* CONFIG_FST */
4914 if (wpas_wps_init(wpa_s))
4917 if (wpa_supplicant_init_eapol(wpa_s) < 0)
4919 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
4921 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
4922 if (wpa_s->ctrl_iface == NULL) {
4923 wpa_printf(MSG_ERROR,
4924 "Failed to initialize control interface '%s'.\n"
4925 "You may have another wpa_supplicant process "
4926 "already running or the file was\n"
4927 "left by an unclean termination of wpa_supplicant "
4928 "in which case you will need\n"
4929 "to manually remove this file before starting "
4930 "wpa_supplicant again.\n",
4931 wpa_s->conf->ctrl_interface);
4935 wpa_s->gas = gas_query_init(wpa_s);
4936 if (wpa_s->gas == NULL) {
4937 wpa_printf(MSG_ERROR, "Failed to initialize GAS query");
4941 if (iface->p2p_mgmt && wpas_p2p_init(wpa_s->global, wpa_s) < 0) {
4942 wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P");
4946 if (wpa_bss_init(wpa_s) < 0)
4950 * Set Wake-on-WLAN triggers, if configured.
4951 * Note: We don't restore/remove the triggers on shutdown (it doesn't
4952 * have effect anyway when the interface is down).
4954 if (capa_res == 0 && wpas_set_wowlan_triggers(wpa_s, &capa) < 0)
4957 #ifdef CONFIG_EAP_PROXY
4960 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, wpa_s->imsi,
4962 if (wpa_s->mnc_len > 0) {
4963 wpa_s->imsi[len] = '\0';
4964 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
4965 wpa_s->imsi, wpa_s->mnc_len);
4967 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
4970 #endif /* CONFIG_EAP_PROXY */
4972 if (pcsc_reader_init(wpa_s) < 0)
4975 if (wpas_init_ext_pw(wpa_s) < 0)
4978 wpas_rrm_reset(wpa_s);
4980 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
4984 #endif /* CONFIG_HS20 */
4986 wpas_mbo_update_non_pref_chan(wpa_s, wpa_s->conf->non_pref_chan);
4987 #endif /* CONFIG_MBO */
4989 wpa_supplicant_set_default_scan_ies(wpa_s);
4995 static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s,
4996 int notify, int terminate)
4998 struct wpa_global *global = wpa_s->global;
4999 struct wpa_supplicant *iface, *prev;
5001 if (wpa_s == wpa_s->parent)
5002 wpas_p2p_group_remove(wpa_s, "*");
5004 iface = global->ifaces;
5006 if (iface->p2pdev == wpa_s)
5007 iface->p2pdev = iface->parent;
5008 if (iface == wpa_s || iface->parent != wpa_s) {
5009 iface = iface->next;
5012 wpa_printf(MSG_DEBUG,
5013 "Remove remaining child interface %s from parent %s",
5014 iface->ifname, wpa_s->ifname);
5016 iface = iface->next;
5017 wpa_supplicant_remove_iface(global, prev, terminate);
5020 wpa_s->disconnected = 1;
5021 if (wpa_s->drv_priv) {
5022 wpa_supplicant_deauthenticate(wpa_s,
5023 WLAN_REASON_DEAUTH_LEAVING);
5025 wpa_drv_set_countermeasures(wpa_s, 0);
5026 wpa_clear_keys(wpa_s, NULL);
5029 wpa_supplicant_cleanup(wpa_s);
5030 wpas_p2p_deinit_iface(wpa_s);
5032 wpas_ctrl_radio_work_flush(wpa_s);
5033 radio_remove_interface(wpa_s);
5037 fst_detach(wpa_s->fst);
5040 if (wpa_s->received_mb_ies) {
5041 wpabuf_free(wpa_s->received_mb_ies);
5042 wpa_s->received_mb_ies = NULL;
5044 #endif /* CONFIG_FST */
5046 if (wpa_s->drv_priv)
5047 wpa_drv_deinit(wpa_s);
5050 wpas_notify_iface_removed(wpa_s);
5053 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING);
5055 if (wpa_s->ctrl_iface) {
5056 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
5057 wpa_s->ctrl_iface = NULL;
5062 wpa_supplicant_mesh_iface_deinit(wpa_s, wpa_s->ifmsh);
5063 wpa_s->ifmsh = NULL;
5065 #endif /* CONFIG_MESH */
5067 if (wpa_s->conf != NULL) {
5068 wpa_config_free(wpa_s->conf);
5072 os_free(wpa_s->ssids_from_scan_req);
5078 #ifdef CONFIG_MATCH_IFACE
5081 * wpa_supplicant_match_iface - Match an interface description to a name
5082 * @global: Pointer to global data from wpa_supplicant_init()
5083 * @ifname: Name of the interface to match
5084 * Returns: Pointer to the created interface description or %NULL on failure
5086 struct wpa_interface * wpa_supplicant_match_iface(struct wpa_global *global,
5090 struct wpa_interface *iface, *miface;
5092 for (i = 0; i < global->params.match_iface_count; i++) {
5093 miface = &global->params.match_ifaces[i];
5094 if (!miface->ifname ||
5095 fnmatch(miface->ifname, ifname, 0) == 0) {
5096 iface = os_zalloc(sizeof(*iface));
5100 iface->ifname = ifname;
5110 * wpa_supplicant_match_existing - Match existing interfaces
5111 * @global: Pointer to global data from wpa_supplicant_init()
5112 * Returns: 0 on success, -1 on failure
5114 static int wpa_supplicant_match_existing(struct wpa_global *global)
5116 struct if_nameindex *ifi, *ifp;
5117 struct wpa_supplicant *wpa_s;
5118 struct wpa_interface *iface;
5120 ifp = if_nameindex();
5122 wpa_printf(MSG_ERROR, "if_nameindex: %s", strerror(errno));
5126 for (ifi = ifp; ifi->if_name; ifi++) {
5127 wpa_s = wpa_supplicant_get_iface(global, ifi->if_name);
5130 iface = wpa_supplicant_match_iface(global, ifi->if_name);
5132 wpa_s = wpa_supplicant_add_iface(global, iface, NULL);
5139 if_freenameindex(ifp);
5143 #endif /* CONFIG_MATCH_IFACE */
5147 * wpa_supplicant_add_iface - Add a new network interface
5148 * @global: Pointer to global data from wpa_supplicant_init()
5149 * @iface: Interface configuration options
5150 * @parent: Parent interface or %NULL to assign new interface as parent
5151 * Returns: Pointer to the created interface or %NULL on failure
5153 * This function is used to add new network interfaces for %wpa_supplicant.
5154 * This can be called before wpa_supplicant_run() to add interfaces before the
5155 * main event loop has been started. In addition, new interfaces can be added
5156 * dynamically while %wpa_supplicant is already running. This could happen,
5157 * e.g., when a hotplug network adapter is inserted.
5159 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
5160 struct wpa_interface *iface,
5161 struct wpa_supplicant *parent)
5163 struct wpa_supplicant *wpa_s;
5164 struct wpa_interface t_iface;
5165 struct wpa_ssid *ssid;
5167 if (global == NULL || iface == NULL)
5170 wpa_s = wpa_supplicant_alloc(parent);
5174 wpa_s->global = global;
5177 if (global->params.override_driver) {
5178 wpa_printf(MSG_DEBUG, "Override interface parameter: driver "
5180 iface->driver, global->params.override_driver);
5181 t_iface.driver = global->params.override_driver;
5183 if (global->params.override_ctrl_interface) {
5184 wpa_printf(MSG_DEBUG, "Override interface parameter: "
5185 "ctrl_interface ('%s' -> '%s')",
5186 iface->ctrl_interface,
5187 global->params.override_ctrl_interface);
5188 t_iface.ctrl_interface =
5189 global->params.override_ctrl_interface;
5191 if (wpa_supplicant_init_iface(wpa_s, &t_iface)) {
5192 wpa_printf(MSG_DEBUG, "Failed to add interface %s",
5194 wpa_supplicant_deinit_iface(wpa_s, 0, 0);
5198 if (iface->p2p_mgmt == 0) {
5199 /* Notify the control interfaces about new iface */
5200 if (wpas_notify_iface_added(wpa_s)) {
5201 wpa_supplicant_deinit_iface(wpa_s, 1, 0);
5205 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
5206 wpas_notify_network_added(wpa_s, ssid);
5209 wpa_s->next = global->ifaces;
5210 global->ifaces = wpa_s;
5212 wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname);
5213 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5216 if (wpa_s->global->p2p == NULL &&
5217 !wpa_s->global->p2p_disabled && !wpa_s->conf->p2p_disabled &&
5218 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
5219 wpas_p2p_add_p2pdev_interface(
5220 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
5221 wpa_printf(MSG_INFO,
5222 "P2P: Failed to enable P2P Device interface");
5223 /* Try to continue without. P2P will be disabled. */
5225 #endif /* CONFIG_P2P */
5232 * wpa_supplicant_remove_iface - Remove a network interface
5233 * @global: Pointer to global data from wpa_supplicant_init()
5234 * @wpa_s: Pointer to the network interface to be removed
5235 * Returns: 0 if interface was removed, -1 if interface was not found
5237 * This function can be used to dynamically remove network interfaces from
5238 * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In
5239 * addition, this function is used to remove all remaining interfaces when
5240 * %wpa_supplicant is terminated.
5242 int wpa_supplicant_remove_iface(struct wpa_global *global,
5243 struct wpa_supplicant *wpa_s,
5246 struct wpa_supplicant *prev;
5248 unsigned int mesh_if_created = wpa_s->mesh_if_created;
5249 char *ifname = NULL;
5250 #endif /* CONFIG_MESH */
5252 /* Remove interface from the global list of interfaces */
5253 prev = global->ifaces;
5254 if (prev == wpa_s) {
5255 global->ifaces = wpa_s->next;
5257 while (prev && prev->next != wpa_s)
5261 prev->next = wpa_s->next;
5264 wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname);
5267 if (mesh_if_created) {
5268 ifname = os_strdup(wpa_s->ifname);
5269 if (ifname == NULL) {
5270 wpa_dbg(wpa_s, MSG_ERROR,
5271 "mesh: Failed to malloc ifname");
5275 #endif /* CONFIG_MESH */
5277 if (global->p2p_group_formation == wpa_s)
5278 global->p2p_group_formation = NULL;
5279 if (global->p2p_invite_group == wpa_s)
5280 global->p2p_invite_group = NULL;
5281 wpa_supplicant_deinit_iface(wpa_s, 1, terminate);
5284 if (mesh_if_created) {
5285 wpa_drv_if_remove(global->ifaces, WPA_IF_MESH, ifname);
5288 #endif /* CONFIG_MESH */
5295 * wpa_supplicant_get_eap_mode - Get the current EAP mode
5296 * @wpa_s: Pointer to the network interface
5297 * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found
5299 const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s)
5301 const char *eapol_method;
5303 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 &&
5304 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
5308 eapol_method = eapol_sm_get_method_name(wpa_s->eapol);
5309 if (eapol_method == NULL)
5310 return "UNKNOWN-EAP";
5312 return eapol_method;
5317 * wpa_supplicant_get_iface - Get a new network interface
5318 * @global: Pointer to global data from wpa_supplicant_init()
5319 * @ifname: Interface name
5320 * Returns: Pointer to the interface or %NULL if not found
5322 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
5325 struct wpa_supplicant *wpa_s;
5327 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5328 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5335 #ifndef CONFIG_NO_WPA_MSG
5336 static const char * wpa_supplicant_msg_ifname_cb(void *ctx)
5338 struct wpa_supplicant *wpa_s = ctx;
5341 return wpa_s->ifname;
5343 #endif /* CONFIG_NO_WPA_MSG */
5346 #ifndef WPA_SUPPLICANT_CLEANUP_INTERVAL
5347 #define WPA_SUPPLICANT_CLEANUP_INTERVAL 10
5348 #endif /* WPA_SUPPLICANT_CLEANUP_INTERVAL */
5350 /* Periodic cleanup tasks */
5351 static void wpas_periodic(void *eloop_ctx, void *timeout_ctx)
5353 struct wpa_global *global = eloop_ctx;
5354 struct wpa_supplicant *wpa_s;
5356 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
5357 wpas_periodic, global, NULL);
5361 p2p_expire_peers(global->p2p);
5362 #endif /* CONFIG_P2P */
5364 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5365 wpa_bss_flush_by_age(wpa_s, wpa_s->conf->bss_expiration_age);
5368 #endif /* CONFIG_AP */
5374 * wpa_supplicant_init - Initialize %wpa_supplicant
5375 * @params: Parameters for %wpa_supplicant
5376 * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure
5378 * This function is used to initialize %wpa_supplicant. After successful
5379 * initialization, the returned data pointer can be used to add and remove
5380 * network interfaces, and eventually, to deinitialize %wpa_supplicant.
5382 struct wpa_global * wpa_supplicant_init(struct wpa_params *params)
5384 struct wpa_global *global;
5390 #ifdef CONFIG_DRIVER_NDIS
5392 void driver_ndis_init_ops(void);
5393 driver_ndis_init_ops();
5395 #endif /* CONFIG_DRIVER_NDIS */
5397 #ifndef CONFIG_NO_WPA_MSG
5398 wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb);
5399 #endif /* CONFIG_NO_WPA_MSG */
5401 if (params->wpa_debug_file_path)
5402 wpa_debug_open_file(params->wpa_debug_file_path);
5404 wpa_debug_setup_stdout();
5405 if (params->wpa_debug_syslog)
5406 wpa_debug_open_syslog();
5407 if (params->wpa_debug_tracing) {
5408 ret = wpa_debug_open_linux_tracing();
5410 wpa_printf(MSG_ERROR,
5411 "Failed to enable trace logging");
5416 ret = eap_register_methods();
5418 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
5420 wpa_printf(MSG_ERROR, "Two or more EAP methods used "
5421 "the same EAP type.");
5425 global = os_zalloc(sizeof(*global));
5428 dl_list_init(&global->p2p_srv_bonjour);
5429 dl_list_init(&global->p2p_srv_upnp);
5430 global->params.daemonize = params->daemonize;
5431 global->params.wait_for_monitor = params->wait_for_monitor;
5432 global->params.dbus_ctrl_interface = params->dbus_ctrl_interface;
5433 if (params->pid_file)
5434 global->params.pid_file = os_strdup(params->pid_file);
5435 if (params->ctrl_interface)
5436 global->params.ctrl_interface =
5437 os_strdup(params->ctrl_interface);
5438 if (params->ctrl_interface_group)
5439 global->params.ctrl_interface_group =
5440 os_strdup(params->ctrl_interface_group);
5441 if (params->override_driver)
5442 global->params.override_driver =
5443 os_strdup(params->override_driver);
5444 if (params->override_ctrl_interface)
5445 global->params.override_ctrl_interface =
5446 os_strdup(params->override_ctrl_interface);
5447 #ifdef CONFIG_MATCH_IFACE
5448 global->params.match_iface_count = params->match_iface_count;
5449 if (params->match_iface_count) {
5450 global->params.match_ifaces =
5451 os_calloc(params->match_iface_count,
5452 sizeof(struct wpa_interface));
5453 os_memcpy(global->params.match_ifaces,
5454 params->match_ifaces,
5455 params->match_iface_count *
5456 sizeof(struct wpa_interface));
5458 #endif /* CONFIG_MATCH_IFACE */
5460 if (params->conf_p2p_dev)
5461 global->params.conf_p2p_dev =
5462 os_strdup(params->conf_p2p_dev);
5463 #endif /* CONFIG_P2P */
5464 wpa_debug_level = global->params.wpa_debug_level =
5465 params->wpa_debug_level;
5466 wpa_debug_show_keys = global->params.wpa_debug_show_keys =
5467 params->wpa_debug_show_keys;
5468 wpa_debug_timestamp = global->params.wpa_debug_timestamp =
5469 params->wpa_debug_timestamp;
5471 wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR);
5474 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
5475 wpa_supplicant_deinit(global);
5479 random_init(params->entropy_file);
5481 global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global);
5482 if (global->ctrl_iface == NULL) {
5483 wpa_supplicant_deinit(global);
5487 if (wpas_notify_supplicant_initialized(global)) {
5488 wpa_supplicant_deinit(global);
5492 for (i = 0; wpa_drivers[i]; i++)
5493 global->drv_count++;
5494 if (global->drv_count == 0) {
5495 wpa_printf(MSG_ERROR, "No drivers enabled");
5496 wpa_supplicant_deinit(global);
5499 global->drv_priv = os_calloc(global->drv_count, sizeof(void *));
5500 if (global->drv_priv == NULL) {
5501 wpa_supplicant_deinit(global);
5505 #ifdef CONFIG_WIFI_DISPLAY
5506 if (wifi_display_init(global) < 0) {
5507 wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display");
5508 wpa_supplicant_deinit(global);
5511 #endif /* CONFIG_WIFI_DISPLAY */
5513 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
5514 wpas_periodic, global, NULL);
5521 * wpa_supplicant_run - Run the %wpa_supplicant main event loop
5522 * @global: Pointer to global data from wpa_supplicant_init()
5523 * Returns: 0 after successful event loop run, -1 on failure
5525 * This function starts the main event loop and continues running as long as
5526 * there are any remaining events. In most cases, this function is running as
5527 * long as the %wpa_supplicant process in still in use.
5529 int wpa_supplicant_run(struct wpa_global *global)
5531 struct wpa_supplicant *wpa_s;
5533 if (global->params.daemonize &&
5534 (wpa_supplicant_daemon(global->params.pid_file) ||
5535 eloop_sock_requeue()))
5538 #ifdef CONFIG_MATCH_IFACE
5539 if (wpa_supplicant_match_existing(global))
5543 if (global->params.wait_for_monitor) {
5544 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
5545 if (wpa_s->ctrl_iface && !wpa_s->p2p_mgmt)
5546 wpa_supplicant_ctrl_iface_wait(
5550 eloop_register_signal_terminate(wpa_supplicant_terminate, global);
5551 eloop_register_signal_reconfig(wpa_supplicant_reconfig, global);
5560 * wpa_supplicant_deinit - Deinitialize %wpa_supplicant
5561 * @global: Pointer to global data from wpa_supplicant_init()
5563 * This function is called to deinitialize %wpa_supplicant and to free all
5564 * allocated resources. Remaining network interfaces will also be removed.
5566 void wpa_supplicant_deinit(struct wpa_global *global)
5573 eloop_cancel_timeout(wpas_periodic, global, NULL);
5575 #ifdef CONFIG_WIFI_DISPLAY
5576 wifi_display_deinit(global);
5577 #endif /* CONFIG_WIFI_DISPLAY */
5579 while (global->ifaces)
5580 wpa_supplicant_remove_iface(global, global->ifaces, 1);
5582 if (global->ctrl_iface)
5583 wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface);
5585 wpas_notify_supplicant_deinitialized(global);
5587 eap_peer_unregister_methods();
5589 eap_server_unregister_methods();
5590 #endif /* CONFIG_AP */
5592 for (i = 0; wpa_drivers[i] && global->drv_priv; i++) {
5593 if (!global->drv_priv[i])
5595 wpa_drivers[i]->global_deinit(global->drv_priv[i]);
5597 os_free(global->drv_priv);
5603 if (global->params.pid_file) {
5604 os_daemonize_terminate(global->params.pid_file);
5605 os_free(global->params.pid_file);
5607 os_free(global->params.ctrl_interface);
5608 os_free(global->params.ctrl_interface_group);
5609 os_free(global->params.override_driver);
5610 os_free(global->params.override_ctrl_interface);
5611 #ifdef CONFIG_MATCH_IFACE
5612 os_free(global->params.match_ifaces);
5613 #endif /* CONFIG_MATCH_IFACE */
5615 os_free(global->params.conf_p2p_dev);
5616 #endif /* CONFIG_P2P */
5618 os_free(global->p2p_disallow_freq.range);
5619 os_free(global->p2p_go_avoid_freq.range);
5620 os_free(global->add_psk);
5623 wpa_debug_close_syslog();
5624 wpa_debug_close_file();
5625 wpa_debug_close_linux_tracing();
5629 void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s)
5631 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
5632 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
5634 country[0] = wpa_s->conf->country[0];
5635 country[1] = wpa_s->conf->country[1];
5637 if (wpa_drv_set_country(wpa_s, country) < 0) {
5638 wpa_printf(MSG_ERROR, "Failed to set country code "
5643 if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND)
5644 wpas_init_ext_pw(wpa_s);
5646 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SCHED_SCAN_PLANS)
5647 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
5650 wpas_wps_update_config(wpa_s);
5651 #endif /* CONFIG_WPS */
5652 wpas_p2p_update_config(wpa_s);
5653 wpa_s->conf->changed_parameters = 0;
5657 void add_freq(int *freqs, int *num_freqs, int freq)
5661 for (i = 0; i < *num_freqs; i++) {
5662 if (freqs[i] == freq)
5666 freqs[*num_freqs] = freq;
5671 static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s)
5673 struct wpa_bss *bss, *cbss;
5674 const int max_freqs = 10;
5678 freqs = os_calloc(max_freqs + 1, sizeof(int));
5682 cbss = wpa_s->current_bss;
5684 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
5687 if (bss->ssid_len == cbss->ssid_len &&
5688 os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 &&
5689 wpa_blacklist_get(wpa_s, bss->bssid) == NULL) {
5690 add_freq(freqs, &num_freqs, bss->freq);
5691 if (num_freqs == max_freqs)
5696 if (num_freqs == 0) {
5705 void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid)
5711 wpas_connect_work_done(wpa_s);
5714 * Remove possible authentication timeout since the connection failed.
5716 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
5719 * There is no point in blacklisting the AP if this event is
5720 * generated based on local request to disconnect.
5722 if (wpa_s->own_disconnect_req) {
5723 wpa_s->own_disconnect_req = 0;
5724 wpa_dbg(wpa_s, MSG_DEBUG,
5725 "Ignore connection failure due to local request to disconnect");
5728 if (wpa_s->disconnected) {
5729 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure "
5730 "indication since interface has been put into "
5731 "disconnected state");
5736 * Add the failed BSSID into the blacklist and speed up next scan
5737 * attempt if there could be other APs that could accept association.
5738 * The current blacklist count indicates how many times we have tried
5739 * connecting to this AP and multiple attempts mean that other APs are
5740 * either not available or has already been tried, so that we can start
5741 * increasing the delay here to avoid constant scanning.
5743 count = wpa_blacklist_add(wpa_s, bssid);
5744 if (count == 1 && wpa_s->current_bss) {
5746 * This BSS was not in the blacklist before. If there is
5747 * another BSS available for the same ESS, we should try that
5748 * next. Otherwise, we may as well try this one once more
5749 * before allowing other, likely worse, ESSes to be considered.
5751 freqs = get_bss_freqs_in_ess(wpa_s);
5753 wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS "
5754 "has been seen; try it next");
5755 wpa_blacklist_add(wpa_s, bssid);
5757 * On the next scan, go through only the known channels
5758 * used in this ESS based on previous scans to speed up
5759 * common load balancing use case.
5761 os_free(wpa_s->next_scan_freqs);
5762 wpa_s->next_scan_freqs = freqs;
5767 * Add previous failure count in case the temporary blacklist was
5768 * cleared due to no other BSSes being available.
5770 count += wpa_s->extra_blacklist_count;
5772 if (count > 3 && wpa_s->current_ssid) {
5773 wpa_printf(MSG_DEBUG, "Continuous association failures - "
5774 "consider temporary network disabling");
5775 wpas_auth_failed(wpa_s, "CONN_FAILED");
5796 wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d "
5797 "ms", count, timeout);
5800 * TODO: if more than one possible AP is available in scan results,
5801 * could try the other ones before requesting a new scan.
5803 wpa_supplicant_req_scan(wpa_s, timeout / 1000,
5804 1000 * (timeout % 1000));
5808 int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s)
5810 return wpa_s->conf->ap_scan == 2 ||
5811 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION);
5815 #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW)
5816 int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s,
5817 struct wpa_ssid *ssid,
5821 #ifdef IEEE8021X_EAPOL
5822 struct eap_peer_config *eap = &ssid->eap;
5824 wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field);
5825 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value",
5826 (const u8 *) value, os_strlen(value));
5828 switch (wpa_supplicant_ctrl_req_from_string(field)) {
5829 case WPA_CTRL_REQ_EAP_IDENTITY:
5830 os_free(eap->identity);
5831 eap->identity = (u8 *) os_strdup(value);
5832 eap->identity_len = os_strlen(value);
5833 eap->pending_req_identity = 0;
5834 if (ssid == wpa_s->current_ssid)
5835 wpa_s->reassociate = 1;
5837 case WPA_CTRL_REQ_EAP_PASSWORD:
5838 bin_clear_free(eap->password, eap->password_len);
5839 eap->password = (u8 *) os_strdup(value);
5840 eap->password_len = os_strlen(value);
5841 eap->pending_req_password = 0;
5842 if (ssid == wpa_s->current_ssid)
5843 wpa_s->reassociate = 1;
5845 case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
5846 bin_clear_free(eap->new_password, eap->new_password_len);
5847 eap->new_password = (u8 *) os_strdup(value);
5848 eap->new_password_len = os_strlen(value);
5849 eap->pending_req_new_password = 0;
5850 if (ssid == wpa_s->current_ssid)
5851 wpa_s->reassociate = 1;
5853 case WPA_CTRL_REQ_EAP_PIN:
5854 str_clear_free(eap->pin);
5855 eap->pin = os_strdup(value);
5856 eap->pending_req_pin = 0;
5857 if (ssid == wpa_s->current_ssid)
5858 wpa_s->reassociate = 1;
5860 case WPA_CTRL_REQ_EAP_OTP:
5861 bin_clear_free(eap->otp, eap->otp_len);
5862 eap->otp = (u8 *) os_strdup(value);
5863 eap->otp_len = os_strlen(value);
5864 os_free(eap->pending_req_otp);
5865 eap->pending_req_otp = NULL;
5866 eap->pending_req_otp_len = 0;
5868 case WPA_CTRL_REQ_EAP_PASSPHRASE:
5869 str_clear_free(eap->private_key_passwd);
5870 eap->private_key_passwd = os_strdup(value);
5871 eap->pending_req_passphrase = 0;
5872 if (ssid == wpa_s->current_ssid)
5873 wpa_s->reassociate = 1;
5875 case WPA_CTRL_REQ_SIM:
5876 str_clear_free(eap->external_sim_resp);
5877 eap->external_sim_resp = os_strdup(value);
5879 case WPA_CTRL_REQ_PSK_PASSPHRASE:
5880 if (wpa_config_set(ssid, "psk", value, 0) < 0)
5882 ssid->mem_only_psk = 1;
5883 if (ssid->passphrase)
5884 wpa_config_update_psk(ssid);
5885 if (wpa_s->wpa_state == WPA_SCANNING && !wpa_s->scanning)
5886 wpa_supplicant_req_scan(wpa_s, 0, 0);
5888 case WPA_CTRL_REQ_EXT_CERT_CHECK:
5889 if (eap->pending_ext_cert_check != PENDING_CHECK)
5891 if (os_strcmp(value, "good") == 0)
5892 eap->pending_ext_cert_check = EXT_CERT_CHECK_GOOD;
5893 else if (os_strcmp(value, "bad") == 0)
5894 eap->pending_ext_cert_check = EXT_CERT_CHECK_BAD;
5899 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field);
5904 #else /* IEEE8021X_EAPOL */
5905 wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included");
5907 #endif /* IEEE8021X_EAPOL */
5909 #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */
5912 int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5915 unsigned int drv_enc;
5917 if (wpa_s->p2p_mgmt)
5918 return 1; /* no normal network profiles on p2p_mgmt interface */
5926 if (wpa_s->drv_capa_known)
5927 drv_enc = wpa_s->drv_enc;
5929 drv_enc = (unsigned int) -1;
5931 for (i = 0; i < NUM_WEP_KEYS; i++) {
5932 size_t len = ssid->wep_key_len[i];
5935 if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40))
5937 if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104))
5939 if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128))
5941 return 1; /* invalid WEP key */
5944 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
5945 (!ssid->passphrase || ssid->ssid_len != 0) && !ssid->ext_psk &&
5946 !ssid->mem_only_psk)
5953 int wpas_get_ssid_pmf(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5955 #ifdef CONFIG_IEEE80211W
5956 if (ssid == NULL || ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT) {
5957 if (wpa_s->conf->pmf == MGMT_FRAME_PROTECTION_OPTIONAL &&
5958 !(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_BIP)) {
5960 * Driver does not support BIP -- ignore pmf=1 default
5961 * since the connection with PMF would fail and the
5962 * configuration does not require PMF to be enabled.
5964 return NO_MGMT_FRAME_PROTECTION;
5969 ~(WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPS |
5970 WPA_KEY_MGMT_IEEE8021X_NO_WPA)) == 0) {
5972 * Do not use the default PMF value for non-RSN networks
5973 * since PMF is available only with RSN and pmf=2
5974 * configuration would otherwise prevent connections to
5975 * all open networks.
5977 return NO_MGMT_FRAME_PROTECTION;
5980 return wpa_s->conf->pmf;
5983 return ssid->ieee80211w;
5984 #else /* CONFIG_IEEE80211W */
5985 return NO_MGMT_FRAME_PROTECTION;
5986 #endif /* CONFIG_IEEE80211W */
5990 int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s)
5992 if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P)
5994 if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA)
6000 void wpas_auth_failed(struct wpa_supplicant *wpa_s, char *reason)
6002 struct wpa_ssid *ssid = wpa_s->current_ssid;
6004 struct os_reltime now;
6007 wpa_printf(MSG_DEBUG, "Authentication failure but no known "
6012 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
6015 ssid->auth_failures++;
6018 if (ssid->p2p_group &&
6019 (wpa_s->p2p_in_provisioning || wpa_s->show_group_started)) {
6021 * Skip the wait time since there is a short timeout on the
6022 * connection to a P2P group.
6026 #endif /* CONFIG_P2P */
6028 if (ssid->auth_failures > 50)
6030 else if (ssid->auth_failures > 10)
6032 else if (ssid->auth_failures > 5)
6034 else if (ssid->auth_failures > 3)
6036 else if (ssid->auth_failures > 2)
6038 else if (ssid->auth_failures > 1)
6043 if (ssid->auth_failures > 1 &&
6044 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt))
6045 dur += os_random() % (ssid->auth_failures * 10);
6047 os_get_reltime(&now);
6048 if (now.sec + dur <= ssid->disabled_until.sec)
6051 ssid->disabled_until.sec = now.sec + dur;
6053 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED
6054 "id=%d ssid=\"%s\" auth_failures=%u duration=%d reason=%s",
6055 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
6056 ssid->auth_failures, dur, reason);
6060 void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s,
6061 struct wpa_ssid *ssid, int clear_failures)
6066 if (ssid->disabled_until.sec) {
6067 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED
6068 "id=%d ssid=\"%s\"",
6069 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
6071 ssid->disabled_until.sec = 0;
6072 ssid->disabled_until.usec = 0;
6074 ssid->auth_failures = 0;
6078 int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid)
6082 if (wpa_s->disallow_aps_bssid == NULL)
6085 for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) {
6086 if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN,
6087 bssid, ETH_ALEN) == 0)
6095 int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid,
6100 if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL)
6103 for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) {
6104 struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i];
6105 if (ssid_len == s->ssid_len &&
6106 os_memcmp(ssid, s->ssid, ssid_len) == 0)
6115 * wpas_request_connection - Request a new connection
6116 * @wpa_s: Pointer to the network interface
6118 * This function is used to request a new connection to be found. It will mark
6119 * the interface to allow reassociation and request a new scan to find a
6120 * suitable network to connect to.
6122 void wpas_request_connection(struct wpa_supplicant *wpa_s)
6124 wpa_s->normal_scans = 0;
6125 wpa_s->scan_req = NORMAL_SCAN_REQ;
6126 wpa_supplicant_reinit_autoscan(wpa_s);
6127 wpa_s->extra_blacklist_count = 0;
6128 wpa_s->disconnected = 0;
6129 wpa_s->reassociate = 1;
6131 if (wpa_supplicant_fast_associate(wpa_s) != 1)
6132 wpa_supplicant_req_scan(wpa_s, 0, 0);
6134 wpa_s->reattach = 0;
6139 * wpas_request_disconnection - Request disconnection
6140 * @wpa_s: Pointer to the network interface
6142 * This function is used to request disconnection from the currently connected
6143 * network. This will stop any ongoing scans and initiate deauthentication.
6145 void wpas_request_disconnection(struct wpa_supplicant *wpa_s)
6148 wpa_s->sme.prev_bssid_set = 0;
6149 #endif /* CONFIG_SME */
6150 wpa_s->reassociate = 0;
6151 wpa_s->disconnected = 1;
6152 wpa_supplicant_cancel_sched_scan(wpa_s);
6153 wpa_supplicant_cancel_scan(wpa_s);
6154 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
6155 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
6159 void dump_freq_data(struct wpa_supplicant *wpa_s, const char *title,
6160 struct wpa_used_freq_data *freqs_data,
6165 wpa_dbg(wpa_s, MSG_DEBUG, "Shared frequencies (len=%u): %s",
6167 for (i = 0; i < len; i++) {
6168 struct wpa_used_freq_data *cur = &freqs_data[i];
6169 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d, flags=0x%X",
6170 i, cur->freq, cur->flags);
6176 * Find the operating frequencies of any of the virtual interfaces that
6177 * are using the same radio as the current interface, and in addition, get
6178 * information about the interface types that are using the frequency.
6180 int get_shared_radio_freqs_data(struct wpa_supplicant *wpa_s,
6181 struct wpa_used_freq_data *freqs_data,
6184 struct wpa_supplicant *ifs;
6187 unsigned int idx = 0, i;
6189 wpa_dbg(wpa_s, MSG_DEBUG,
6190 "Determining shared radio frequencies (max len %u)", len);
6191 os_memset(freqs_data, 0, sizeof(struct wpa_used_freq_data) * len);
6193 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6198 if (ifs->current_ssid == NULL || ifs->assoc_freq == 0)
6201 if (ifs->current_ssid->mode == WPAS_MODE_AP ||
6202 ifs->current_ssid->mode == WPAS_MODE_P2P_GO ||
6203 ifs->current_ssid->mode == WPAS_MODE_MESH)
6204 freq = ifs->current_ssid->frequency;
6205 else if (wpa_drv_get_bssid(ifs, bssid) == 0)
6206 freq = ifs->assoc_freq;
6210 /* Hold only distinct freqs */
6211 for (i = 0; i < idx; i++)
6212 if (freqs_data[i].freq == freq)
6216 freqs_data[idx++].freq = freq;
6218 if (ifs->current_ssid->mode == WPAS_MODE_INFRA) {
6219 freqs_data[i].flags |= ifs->current_ssid->p2p_group ?
6220 WPA_FREQ_USED_BY_P2P_CLIENT :
6221 WPA_FREQ_USED_BY_INFRA_STATION;
6225 dump_freq_data(wpa_s, "completed iteration", freqs_data, idx);
6231 * Find the operating frequencies of any of the virtual interfaces that
6232 * are using the same radio as the current interface.
6234 int get_shared_radio_freqs(struct wpa_supplicant *wpa_s,
6235 int *freq_array, unsigned int len)
6237 struct wpa_used_freq_data *freqs_data;
6240 os_memset(freq_array, 0, sizeof(int) * len);
6242 freqs_data = os_calloc(len, sizeof(struct wpa_used_freq_data));
6246 num = get_shared_radio_freqs_data(wpa_s, freqs_data, len);
6247 for (i = 0; i < num; i++)
6248 freq_array[i] = freqs_data[i].freq;
6250 os_free(freqs_data);
6256 static void wpas_rrm_neighbor_rep_timeout_handler(void *data, void *user_ctx)
6258 struct rrm_data *rrm = data;
6260 if (!rrm->notify_neighbor_rep) {
6261 wpa_printf(MSG_ERROR,
6262 "RRM: Unexpected neighbor report timeout");
6266 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report - NONE");
6267 rrm->notify_neighbor_rep(rrm->neighbor_rep_cb_ctx, NULL);
6269 rrm->notify_neighbor_rep = NULL;
6270 rrm->neighbor_rep_cb_ctx = NULL;
6275 * wpas_rrm_reset - Clear and reset all RRM data in wpa_supplicant
6276 * @wpa_s: Pointer to wpa_supplicant
6278 void wpas_rrm_reset(struct wpa_supplicant *wpa_s)
6280 wpa_s->rrm.rrm_used = 0;
6282 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
6284 if (wpa_s->rrm.notify_neighbor_rep)
6285 wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL);
6286 wpa_s->rrm.next_neighbor_rep_token = 1;
6291 * wpas_rrm_process_neighbor_rep - Handle incoming neighbor report
6292 * @wpa_s: Pointer to wpa_supplicant
6293 * @report: Neighbor report buffer, prefixed by a 1-byte dialog token
6294 * @report_len: Length of neighbor report buffer
6296 void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
6297 const u8 *report, size_t report_len)
6299 struct wpabuf *neighbor_rep;
6301 wpa_hexdump(MSG_DEBUG, "RRM: New Neighbor Report", report, report_len);
6305 if (report[0] != wpa_s->rrm.next_neighbor_rep_token - 1) {
6306 wpa_printf(MSG_DEBUG,
6307 "RRM: Discarding neighbor report with token %d (expected %d)",
6308 report[0], wpa_s->rrm.next_neighbor_rep_token - 1);
6312 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
6315 if (!wpa_s->rrm.notify_neighbor_rep) {
6316 wpa_printf(MSG_ERROR, "RRM: Unexpected neighbor report");
6320 /* skipping the first byte, which is only an id (dialog token) */
6321 neighbor_rep = wpabuf_alloc(report_len - 1);
6322 if (neighbor_rep == NULL)
6324 wpabuf_put_data(neighbor_rep, report + 1, report_len - 1);
6325 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report (token = %d)",
6327 wpa_s->rrm.notify_neighbor_rep(wpa_s->rrm.neighbor_rep_cb_ctx,
6329 wpa_s->rrm.notify_neighbor_rep = NULL;
6330 wpa_s->rrm.neighbor_rep_cb_ctx = NULL;
6334 #if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
6335 /* Workaround different, undefined for Windows, error codes used here */
6337 #define EOPNOTSUPP -1
6338 #define ECANCELED -1
6341 /* Measurement Request element + Location Subject + Maximum Age subelement */
6342 #define MEASURE_REQUEST_LCI_LEN (3 + 1 + 4)
6343 /* Measurement Request element + Location Civic Request */
6344 #define MEASURE_REQUEST_CIVIC_LEN (3 + 5)
6348 * wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP
6349 * @wpa_s: Pointer to wpa_supplicant
6350 * @ssid: if not null, this is sent in the request. Otherwise, no SSID IE
6351 * is sent in the request.
6352 * @lci: if set, neighbor request will include LCI request
6353 * @civic: if set, neighbor request will include civic location request
6354 * @cb: Callback function to be called once the requested report arrives, or
6355 * timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds.
6356 * In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's
6357 * the requester's responsibility to free it.
6358 * In the latter case NULL will be sent in 'neighbor_rep'.
6359 * @cb_ctx: Context value to send the callback function
6360 * Returns: 0 in case of success, negative error code otherwise
6362 * In case there is a previous request which has not been answered yet, the
6363 * new request fails. The caller may retry after RRM_NEIGHBOR_REPORT_TIMEOUT.
6364 * Request must contain a callback function.
6366 int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
6367 const struct wpa_ssid_value *ssid,
6369 void (*cb)(void *ctx,
6370 struct wpabuf *neighbor_rep),
6376 if (wpa_s->wpa_state != WPA_COMPLETED || wpa_s->current_ssid == NULL) {
6377 wpa_printf(MSG_DEBUG, "RRM: No connection, no RRM.");
6381 if (!wpa_s->rrm.rrm_used) {
6382 wpa_printf(MSG_DEBUG, "RRM: No RRM in current connection.");
6386 rrm_ie = wpa_bss_get_ie(wpa_s->current_bss,
6387 WLAN_EID_RRM_ENABLED_CAPABILITIES);
6388 if (!rrm_ie || !(wpa_s->current_bss->caps & IEEE80211_CAP_RRM) ||
6389 !(rrm_ie[2] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
6390 wpa_printf(MSG_DEBUG,
6391 "RRM: No network support for Neighbor Report.");
6396 wpa_printf(MSG_DEBUG,
6397 "RRM: Neighbor Report request must provide a callback.");
6401 /* Refuse if there's a live request */
6402 if (wpa_s->rrm.notify_neighbor_rep) {
6403 wpa_printf(MSG_DEBUG,
6404 "RRM: Currently handling previous Neighbor Report.");
6408 /* 3 = action category + action code + dialog token */
6409 buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0) +
6410 (lci ? 2 + MEASURE_REQUEST_LCI_LEN : 0) +
6411 (civic ? 2 + MEASURE_REQUEST_CIVIC_LEN : 0));
6413 wpa_printf(MSG_DEBUG,
6414 "RRM: Failed to allocate Neighbor Report Request");
6418 wpa_printf(MSG_DEBUG, "RRM: Neighbor report request (for %s), token=%d",
6419 (ssid ? wpa_ssid_txt(ssid->ssid, ssid->ssid_len) : ""),
6420 wpa_s->rrm.next_neighbor_rep_token);
6422 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6423 wpabuf_put_u8(buf, WLAN_RRM_NEIGHBOR_REPORT_REQUEST);
6424 wpabuf_put_u8(buf, wpa_s->rrm.next_neighbor_rep_token);
6426 wpabuf_put_u8(buf, WLAN_EID_SSID);
6427 wpabuf_put_u8(buf, ssid->ssid_len);
6428 wpabuf_put_data(buf, ssid->ssid, ssid->ssid_len);
6432 /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
6433 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
6434 wpabuf_put_u8(buf, MEASURE_REQUEST_LCI_LEN);
6437 * Measurement token; nonzero number that is unique among the
6438 * Measurement Request elements in a particular frame.
6440 wpabuf_put_u8(buf, 1); /* Measurement Token */
6443 * Parallel, Enable, Request, and Report bits are 0, Duration is
6446 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
6447 wpabuf_put_u8(buf, MEASURE_TYPE_LCI); /* Measurement Type */
6449 /* IEEE P802.11-REVmc/D5.0 9.4.2.21.10 - LCI request */
6450 /* Location Subject */
6451 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
6453 /* Optional Subelements */
6455 * IEEE P802.11-REVmc/D5.0 Figure 9-170
6456 * The Maximum Age subelement is required, otherwise the AP can
6457 * send only data that was determined after receiving the
6458 * request. Setting it here to unlimited age.
6460 wpabuf_put_u8(buf, LCI_REQ_SUBELEM_MAX_AGE);
6461 wpabuf_put_u8(buf, 2);
6462 wpabuf_put_le16(buf, 0xffff);
6466 /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
6467 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
6468 wpabuf_put_u8(buf, MEASURE_REQUEST_CIVIC_LEN);
6471 * Measurement token; nonzero number that is unique among the
6472 * Measurement Request elements in a particular frame.
6474 wpabuf_put_u8(buf, 2); /* Measurement Token */
6477 * Parallel, Enable, Request, and Report bits are 0, Duration is
6480 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
6481 /* Measurement Type */
6482 wpabuf_put_u8(buf, MEASURE_TYPE_LOCATION_CIVIC);
6484 /* IEEE P802.11-REVmc/D5.0 9.4.2.21.14:
6485 * Location Civic request */
6486 /* Location Subject */
6487 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
6488 wpabuf_put_u8(buf, 0); /* Civic Location Type: IETF RFC 4776 */
6489 /* Location Service Interval Units: Seconds */
6490 wpabuf_put_u8(buf, 0);
6491 /* Location Service Interval: 0 - Only one report is requested
6493 wpabuf_put_le16(buf, 0);
6494 /* No optional subelements */
6497 wpa_s->rrm.next_neighbor_rep_token++;
6499 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
6500 wpa_s->own_addr, wpa_s->bssid,
6501 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
6502 wpa_printf(MSG_DEBUG,
6503 "RRM: Failed to send Neighbor Report Request");
6508 wpa_s->rrm.neighbor_rep_cb_ctx = cb_ctx;
6509 wpa_s->rrm.notify_neighbor_rep = cb;
6510 eloop_register_timeout(RRM_NEIGHBOR_REPORT_TIMEOUT, 0,
6511 wpas_rrm_neighbor_rep_timeout_handler,
6519 static struct wpabuf * wpas_rrm_build_lci_report(struct wpa_supplicant *wpa_s,
6520 const u8 *request, size_t len,
6521 struct wpabuf *report)
6523 u8 token, type, subject;
6525 struct os_reltime t, diff;
6526 unsigned long diff_l;
6530 if (!wpa_s->lci || len < 3 + 4)
6534 /* Measurement request mode isn't used */
6537 subject = *request++;
6539 wpa_printf(MSG_DEBUG,
6540 "Measurement request token %u type %u location subject %u",
6541 token, type, subject);
6543 if (type != MEASURE_TYPE_LCI || subject != LOCATION_SUBJECT_REMOTE) {
6544 wpa_printf(MSG_INFO,
6545 "Not building LCI report - bad type or location subject");
6549 /* Subelements are formatted exactly like elements */
6550 subelem = get_ie(request, len, LCI_REQ_SUBELEM_MAX_AGE);
6551 if (subelem && subelem[1] == 2)
6552 max_age = WPA_GET_LE16(subelem + 2);
6554 if (os_get_reltime(&t))
6557 os_reltime_sub(&t, &wpa_s->lci_time, &diff);
6558 /* LCI age is calculated in 10th of a second units. */
6559 diff_l = diff.sec * 10 + diff.usec / 100000;
6561 if (max_age != 0xffff && max_age < diff_l)
6564 if (wpabuf_resize(&report, 2 + wpabuf_len(wpa_s->lci)))
6567 wpabuf_put_u8(report, WLAN_EID_MEASURE_REPORT);
6568 wpabuf_put_u8(report, wpabuf_len(wpa_s->lci));
6569 /* We'll override user's measurement token */
6570 ptoken = wpabuf_put(report, 0);
6571 wpabuf_put_buf(report, wpa_s->lci);
6578 void wpas_rrm_handle_radio_measurement_request(struct wpa_supplicant *wpa_s,
6580 const u8 *frame, size_t len)
6582 struct wpabuf *buf, *report;
6586 if (wpa_s->wpa_state != WPA_COMPLETED) {
6587 wpa_printf(MSG_INFO,
6588 "RRM: Ignoring radio measurement request: Not associated");
6592 if (!wpa_s->rrm.rrm_used) {
6593 wpa_printf(MSG_INFO,
6594 "RRM: Ignoring radio measurement request: Not RRM network");
6599 wpa_printf(MSG_INFO,
6600 "RRM: Ignoring too short radio measurement request");
6608 /* Ignore number of repetitions because it's not used in LCI request */
6612 while ((ie = get_ie(frame, end - frame, WLAN_EID_MEASURE_REQUEST)) &&
6617 wpa_printf(MSG_DEBUG, "RRM request %d", msmt_type);
6619 switch (msmt_type) {
6620 case MEASURE_TYPE_LCI:
6621 report = wpas_rrm_build_lci_report(wpa_s, ie + 2, ie[1],
6625 wpa_printf(MSG_INFO,
6626 "RRM: Unsupported radio measurement request %d",
6631 frame = ie + ie[1] + 2;
6637 buf = wpabuf_alloc(3 + wpabuf_len(report));
6639 wpabuf_free(report);
6643 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6644 wpabuf_put_u8(buf, WLAN_RRM_RADIO_MEASUREMENT_REPORT);
6645 wpabuf_put_u8(buf, token);
6647 wpabuf_put_buf(buf, report);
6648 wpabuf_free(report);
6650 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
6651 wpa_s->own_addr, wpa_s->bssid,
6652 wpabuf_head(buf), wpabuf_len(buf), 0)) {
6653 wpa_printf(MSG_ERROR,
6654 "RRM: Radio measurement report failed: Sending Action frame failed");
6660 void wpas_rrm_handle_link_measurement_request(struct wpa_supplicant *wpa_s,
6662 const u8 *frame, size_t len,
6666 const struct rrm_link_measurement_request *req;
6667 struct rrm_link_measurement_report report;
6669 if (wpa_s->wpa_state != WPA_COMPLETED) {
6670 wpa_printf(MSG_INFO,
6671 "RRM: Ignoring link measurement request. Not associated");
6675 if (!wpa_s->rrm.rrm_used) {
6676 wpa_printf(MSG_INFO,
6677 "RRM: Ignoring link measurement request. Not RRM network");
6681 if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)) {
6682 wpa_printf(MSG_INFO,
6683 "RRM: Measurement report failed. TX power insertion not supported");
6687 req = (const struct rrm_link_measurement_request *) frame;
6688 if (len < sizeof(*req)) {
6689 wpa_printf(MSG_INFO,
6690 "RRM: Link measurement report failed. Request too short");
6694 os_memset(&report, 0, sizeof(report));
6695 report.tpc.eid = WLAN_EID_TPC_REPORT;
6697 report.rsni = 255; /* 255 indicates that RSNI is not available */
6698 report.dialog_token = req->dialog_token;
6701 * It's possible to estimate RCPI based on RSSI in dBm. This
6702 * calculation will not reflect the correct value for high rates,
6703 * but it's good enough for Action frames which are transmitted
6704 * with up to 24 Mbps rates.
6707 report.rcpi = 255; /* not available */
6708 else if (rssi < -110)
6713 report.rcpi = (rssi + 110) * 2;
6715 /* action_category + action_code */
6716 buf = wpabuf_alloc(2 + sizeof(report));
6718 wpa_printf(MSG_ERROR,
6719 "RRM: Link measurement report failed. Buffer allocation failed");
6723 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6724 wpabuf_put_u8(buf, WLAN_RRM_LINK_MEASUREMENT_REPORT);
6725 wpabuf_put_data(buf, &report, sizeof(report));
6726 wpa_hexdump(MSG_DEBUG, "RRM: Link measurement report:",
6727 wpabuf_head(buf), wpabuf_len(buf));
6729 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
6730 wpa_s->own_addr, wpa_s->bssid,
6731 wpabuf_head(buf), wpabuf_len(buf), 0)) {
6732 wpa_printf(MSG_ERROR,
6733 "RRM: Link measurement report failed. Send action failed");
6739 struct wpa_supplicant *
6740 wpas_vendor_elem(struct wpa_supplicant *wpa_s, enum wpa_vendor_elem_frame frame)
6744 case VENDOR_ELEM_PROBE_REQ_P2P:
6745 case VENDOR_ELEM_PROBE_RESP_P2P:
6746 case VENDOR_ELEM_PROBE_RESP_P2P_GO:
6747 case VENDOR_ELEM_BEACON_P2P_GO:
6748 case VENDOR_ELEM_P2P_PD_REQ:
6749 case VENDOR_ELEM_P2P_PD_RESP:
6750 case VENDOR_ELEM_P2P_GO_NEG_REQ:
6751 case VENDOR_ELEM_P2P_GO_NEG_RESP:
6752 case VENDOR_ELEM_P2P_GO_NEG_CONF:
6753 case VENDOR_ELEM_P2P_INV_REQ:
6754 case VENDOR_ELEM_P2P_INV_RESP:
6755 case VENDOR_ELEM_P2P_ASSOC_REQ:
6756 case VENDOR_ELEM_P2P_ASSOC_RESP:
6757 return wpa_s->p2pdev;
6758 #endif /* CONFIG_P2P */
6765 void wpas_vendor_elem_update(struct wpa_supplicant *wpa_s)
6770 wpa_printf(MSG_DEBUG, "Update vendor elements");
6772 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) {
6773 if (wpa_s->vendor_elem[i]) {
6776 res = os_snprintf(buf, sizeof(buf), "frame[%u]", i);
6777 if (!os_snprintf_error(sizeof(buf), res)) {
6778 wpa_hexdump_buf(MSG_DEBUG, buf,
6779 wpa_s->vendor_elem[i]);
6785 if (wpa_s->parent == wpa_s &&
6786 wpa_s->global->p2p &&
6787 !wpa_s->global->p2p_disabled)
6788 p2p_set_vendor_elems(wpa_s->global->p2p, wpa_s->vendor_elem);
6789 #endif /* CONFIG_P2P */
6793 int wpas_vendor_elem_remove(struct wpa_supplicant *wpa_s, int frame,
6794 const u8 *elem, size_t len)
6798 ie = wpabuf_mhead_u8(wpa_s->vendor_elem[frame]);
6799 end = ie + wpabuf_len(wpa_s->vendor_elem[frame]);
6801 for (; ie + 1 < end; ie += 2 + ie[1]) {
6804 if (os_memcmp(ie, elem, len) != 0)
6807 if (wpabuf_len(wpa_s->vendor_elem[frame]) == len) {
6808 wpabuf_free(wpa_s->vendor_elem[frame]);
6809 wpa_s->vendor_elem[frame] = NULL;
6811 os_memmove(ie, ie + len, end - (ie + len));
6812 wpa_s->vendor_elem[frame]->used -= len;
6814 wpas_vendor_elem_update(wpa_s);
6822 struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
6823 u16 num_modes, enum hostapd_hw_mode mode)
6827 for (i = 0; i < num_modes; i++) {
6828 if (modes[i].mode == mode)
6837 wpa_bss_tmp_disallowed * wpas_get_disallowed_bss(struct wpa_supplicant *wpa_s,
6840 struct wpa_bss_tmp_disallowed *bss;
6842 dl_list_for_each(bss, &wpa_s->bss_tmp_disallowed,
6843 struct wpa_bss_tmp_disallowed, list) {
6844 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) == 0)
6852 void wpa_bss_tmp_disallow(struct wpa_supplicant *wpa_s, const u8 *bssid,
6855 struct wpa_bss_tmp_disallowed *bss;
6856 struct os_reltime until;
6858 os_get_reltime(&until);
6861 bss = wpas_get_disallowed_bss(wpa_s, bssid);
6863 bss->disallowed_until = until;
6867 bss = os_malloc(sizeof(*bss));
6869 wpa_printf(MSG_DEBUG,
6870 "Failed to allocate memory for temp disallow BSS");
6874 bss->disallowed_until = until;
6875 os_memcpy(bss->bssid, bssid, ETH_ALEN);
6876 dl_list_add(&wpa_s->bss_tmp_disallowed, &bss->list);
6880 int wpa_is_bss_tmp_disallowed(struct wpa_supplicant *wpa_s, const u8 *bssid)
6882 struct wpa_bss_tmp_disallowed *bss = NULL, *tmp, *prev;
6883 struct os_reltime now, age;
6885 os_get_reltime(&now);
6887 dl_list_for_each_safe(tmp, prev, &wpa_s->bss_tmp_disallowed,
6888 struct wpa_bss_tmp_disallowed, list) {
6889 if (!os_reltime_before(&now, &tmp->disallowed_until)) {
6890 /* This BSS is not disallowed anymore */
6891 dl_list_del(&tmp->list);
6895 if (os_memcmp(bssid, tmp->bssid, ETH_ALEN) == 0) {
6903 os_reltime_sub(&bss->disallowed_until, &now, &age);
6904 wpa_printf(MSG_DEBUG,
6905 "BSS " MACSTR " disabled for %ld.%0ld seconds",
6906 MAC2STR(bss->bssid), age.sec, age.usec);