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(bssid))
196 bssid = wpa_s->pending_bssid;
197 wpa_msg(wpa_s, MSG_INFO, "Authentication with " MACSTR " timed out.",
199 wpa_blacklist_add(wpa_s, bssid);
200 wpa_sm_notify_disassoc(wpa_s->wpa);
201 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
202 wpa_s->reassociate = 1;
205 * If we timed out, the AP or the local radio may be busy.
206 * So, wait a second until scanning again.
208 wpa_supplicant_req_scan(wpa_s, 1, 0);
213 * wpa_supplicant_req_auth_timeout - Schedule a timeout for authentication
214 * @wpa_s: Pointer to wpa_supplicant data
215 * @sec: Number of seconds after which to time out authentication
216 * @usec: Number of microseconds after which to time out authentication
218 * This function is used to schedule a timeout for the current authentication
221 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
224 if (wpa_s->conf->ap_scan == 0 &&
225 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED))
228 wpa_dbg(wpa_s, MSG_DEBUG, "Setting authentication timeout: %d sec "
229 "%d usec", sec, usec);
230 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
231 eloop_register_timeout(sec, usec, wpa_supplicant_timeout, wpa_s, NULL);
236 * wpa_supplicant_cancel_auth_timeout - Cancel authentication timeout
237 * @wpa_s: Pointer to wpa_supplicant data
239 * This function is used to cancel authentication timeout scheduled with
240 * wpa_supplicant_req_auth_timeout() and it is called when authentication has
243 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s)
245 wpa_dbg(wpa_s, MSG_DEBUG, "Cancelling authentication timeout");
246 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
247 wpa_blacklist_del(wpa_s, wpa_s->bssid);
252 * wpa_supplicant_initiate_eapol - Configure EAPOL state machine
253 * @wpa_s: Pointer to wpa_supplicant data
255 * This function is used to configure EAPOL state machine based on the selected
256 * authentication mode.
258 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s)
260 #ifdef IEEE8021X_EAPOL
261 struct eapol_config eapol_conf;
262 struct wpa_ssid *ssid = wpa_s->current_ssid;
264 #ifdef CONFIG_IBSS_RSN
265 if (ssid->mode == WPAS_MODE_IBSS &&
266 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
267 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
269 * RSN IBSS authentication is per-STA and we can disable the
270 * per-BSSID EAPOL authentication.
272 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
273 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
274 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
277 #endif /* CONFIG_IBSS_RSN */
279 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
280 eapol_sm_notify_eap_fail(wpa_s->eapol, FALSE);
282 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
283 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
284 eapol_sm_notify_portControl(wpa_s->eapol, ForceAuthorized);
286 eapol_sm_notify_portControl(wpa_s->eapol, Auto);
288 os_memset(&eapol_conf, 0, sizeof(eapol_conf));
289 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
290 eapol_conf.accept_802_1x_keys = 1;
291 eapol_conf.required_keys = 0;
292 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_UNICAST) {
293 eapol_conf.required_keys |= EAPOL_REQUIRE_KEY_UNICAST;
295 if (ssid->eapol_flags & EAPOL_FLAG_REQUIRE_KEY_BROADCAST) {
296 eapol_conf.required_keys |=
297 EAPOL_REQUIRE_KEY_BROADCAST;
300 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED)
301 eapol_conf.required_keys = 0;
303 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
304 eapol_conf.workaround = ssid->eap_workaround;
305 eapol_conf.eap_disabled =
306 !wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) &&
307 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
308 wpa_s->key_mgmt != WPA_KEY_MGMT_WPS;
309 eapol_conf.external_sim = wpa_s->conf->external_sim;
312 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
313 eapol_conf.wps |= EAPOL_LOCAL_WPS_IN_USE;
314 if (wpa_s->current_bss) {
316 ie = wpa_bss_get_vendor_ie_multi(wpa_s->current_bss,
321 EAPOL_PEER_IS_WPS20_AP;
326 #endif /* CONFIG_WPS */
328 eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
330 ieee802_1x_alloc_kay_sm(wpa_s, ssid);
331 #endif /* IEEE8021X_EAPOL */
336 * wpa_supplicant_set_non_wpa_policy - Set WPA parameters to non-WPA mode
337 * @wpa_s: Pointer to wpa_supplicant data
338 * @ssid: Configuration data for the network
340 * This function is used to configure WPA state machine and related parameters
341 * to a mode where WPA is not enabled. This is called as part of the
342 * authentication configuration when the selected network does not use WPA.
344 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
345 struct wpa_ssid *ssid)
349 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
350 wpa_s->key_mgmt = WPA_KEY_MGMT_WPS;
351 else if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)
352 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
354 wpa_s->key_mgmt = WPA_KEY_MGMT_NONE;
355 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
356 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
357 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
358 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
359 wpa_s->group_cipher = WPA_CIPHER_NONE;
360 wpa_s->mgmt_group_cipher = 0;
362 for (i = 0; i < NUM_WEP_KEYS; i++) {
363 if (ssid->wep_key_len[i] > 5) {
364 wpa_s->pairwise_cipher = WPA_CIPHER_WEP104;
365 wpa_s->group_cipher = WPA_CIPHER_WEP104;
367 } else if (ssid->wep_key_len[i] > 0) {
368 wpa_s->pairwise_cipher = WPA_CIPHER_WEP40;
369 wpa_s->group_cipher = WPA_CIPHER_WEP40;
374 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED, 0);
375 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
376 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
377 wpa_s->pairwise_cipher);
378 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
379 #ifdef CONFIG_IEEE80211W
380 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
381 wpa_s->mgmt_group_cipher);
382 #endif /* CONFIG_IEEE80211W */
384 pmksa_cache_clear_current(wpa_s->wpa);
388 void free_hw_features(struct wpa_supplicant *wpa_s)
391 if (wpa_s->hw.modes == NULL)
394 for (i = 0; i < wpa_s->hw.num_modes; i++) {
395 os_free(wpa_s->hw.modes[i].channels);
396 os_free(wpa_s->hw.modes[i].rates);
399 os_free(wpa_s->hw.modes);
400 wpa_s->hw.modes = NULL;
404 static void free_bss_tmp_disallowed(struct wpa_supplicant *wpa_s)
406 struct wpa_bss_tmp_disallowed *bss, *prev;
408 dl_list_for_each_safe(bss, prev, &wpa_s->bss_tmp_disallowed,
409 struct wpa_bss_tmp_disallowed, list) {
410 dl_list_del(&bss->list);
416 static void wpa_supplicant_cleanup(struct wpa_supplicant *wpa_s)
420 bgscan_deinit(wpa_s);
421 autoscan_deinit(wpa_s);
422 scard_deinit(wpa_s->scard);
424 wpa_sm_set_scard_ctx(wpa_s->wpa, NULL);
425 eapol_sm_register_scard_ctx(wpa_s->eapol, NULL);
426 l2_packet_deinit(wpa_s->l2);
429 l2_packet_deinit(wpa_s->l2_br);
432 #ifdef CONFIG_TESTING_OPTIONS
433 l2_packet_deinit(wpa_s->l2_test);
434 wpa_s->l2_test = NULL;
435 #endif /* CONFIG_TESTING_OPTIONS */
437 if (wpa_s->conf != NULL) {
438 struct wpa_ssid *ssid;
439 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
440 wpas_notify_network_removed(wpa_s, ssid);
443 os_free(wpa_s->confname);
444 wpa_s->confname = NULL;
446 os_free(wpa_s->confanother);
447 wpa_s->confanother = NULL;
449 wpa_sm_set_eapol(wpa_s->wpa, NULL);
450 eapol_sm_deinit(wpa_s->eapol);
453 rsn_preauth_deinit(wpa_s->wpa);
456 wpa_tdls_deinit(wpa_s->wpa);
457 #endif /* CONFIG_TDLS */
459 wmm_ac_clear_saved_tspecs(wpa_s);
460 pmksa_candidate_free(wpa_s->wpa);
461 wpa_sm_deinit(wpa_s->wpa);
463 wpa_blacklist_clear(wpa_s);
465 wpa_bss_deinit(wpa_s);
467 wpa_supplicant_cancel_delayed_sched_scan(wpa_s);
468 wpa_supplicant_cancel_scan(wpa_s);
469 wpa_supplicant_cancel_auth_timeout(wpa_s);
470 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, wpa_s, NULL);
471 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
472 eloop_cancel_timeout(wpa_supplicant_delayed_mic_error_report,
474 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
476 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
478 wpas_wps_deinit(wpa_s);
480 wpabuf_free(wpa_s->pending_eapol_rx);
481 wpa_s->pending_eapol_rx = NULL;
483 #ifdef CONFIG_IBSS_RSN
484 ibss_rsn_deinit(wpa_s->ibss_rsn);
485 wpa_s->ibss_rsn = NULL;
486 #endif /* CONFIG_IBSS_RSN */
491 wpa_supplicant_ap_deinit(wpa_s);
492 #endif /* CONFIG_AP */
494 wpas_p2p_deinit(wpa_s);
496 #ifdef CONFIG_OFFCHANNEL
497 offchannel_deinit(wpa_s);
498 #endif /* CONFIG_OFFCHANNEL */
500 wpa_supplicant_cancel_sched_scan(wpa_s);
502 os_free(wpa_s->next_scan_freqs);
503 wpa_s->next_scan_freqs = NULL;
505 os_free(wpa_s->manual_scan_freqs);
506 wpa_s->manual_scan_freqs = NULL;
508 os_free(wpa_s->manual_sched_scan_freqs);
509 wpa_s->manual_sched_scan_freqs = NULL;
511 wpas_mac_addr_rand_scan_clear(wpa_s, MAC_ADDR_RAND_ALL);
514 * Need to remove any pending gas-query radio work before the
515 * gas_query_deinit() call because gas_query::work has not yet been set
516 * for works that have not been started. gas_query_free() will be unable
517 * to cancel such pending radio works and once the pending gas-query
518 * radio work eventually gets removed, the deinit notification call to
519 * gas_query_start_cb() would result in dereferencing freed memory.
522 radio_remove_works(wpa_s, "gas-query", 0);
523 gas_query_deinit(wpa_s->gas);
526 free_hw_features(wpa_s);
528 ieee802_1x_dealloc_kay_sm(wpa_s);
530 os_free(wpa_s->bssid_filter);
531 wpa_s->bssid_filter = NULL;
533 os_free(wpa_s->disallow_aps_bssid);
534 wpa_s->disallow_aps_bssid = NULL;
535 os_free(wpa_s->disallow_aps_ssid);
536 wpa_s->disallow_aps_ssid = NULL;
538 wnm_bss_keep_alive_deinit(wpa_s);
540 wnm_deallocate_memory(wpa_s);
541 #endif /* CONFIG_WNM */
543 ext_password_deinit(wpa_s->ext_pw);
544 wpa_s->ext_pw = NULL;
546 wpabuf_free(wpa_s->last_gas_resp);
547 wpa_s->last_gas_resp = NULL;
548 wpabuf_free(wpa_s->prev_gas_resp);
549 wpa_s->prev_gas_resp = NULL;
551 os_free(wpa_s->last_scan_res);
552 wpa_s->last_scan_res = NULL;
556 wpa_drv_configure_frame_filters(wpa_s, 0);
558 #endif /* CONFIG_HS20 */
560 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) {
561 wpabuf_free(wpa_s->vendor_elem[i]);
562 wpa_s->vendor_elem[i] = NULL;
565 wmm_ac_notify_disassoc(wpa_s);
567 wpa_s->sched_scan_plans_num = 0;
568 os_free(wpa_s->sched_scan_plans);
569 wpa_s->sched_scan_plans = NULL;
572 wpa_s->non_pref_chan_num = 0;
573 os_free(wpa_s->non_pref_chan);
574 wpa_s->non_pref_chan = NULL;
575 #endif /* CONFIG_MBO */
577 free_bss_tmp_disallowed(wpa_s);
579 wpabuf_free(wpa_s->lci);
585 * wpa_clear_keys - Clear keys configured for the driver
586 * @wpa_s: Pointer to wpa_supplicant data
587 * @addr: Previously used BSSID or %NULL if not available
589 * This function clears the encryption keys that has been previously configured
592 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr)
596 #ifdef CONFIG_IEEE80211W
598 #else /* CONFIG_IEEE80211W */
600 #endif /* CONFIG_IEEE80211W */
602 /* MLME-DELETEKEYS.request */
603 for (i = 0; i < max; i++) {
604 if (wpa_s->keys_cleared & BIT(i))
606 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, i, 0, NULL, 0,
609 if (!(wpa_s->keys_cleared & BIT(0)) && addr &&
610 !is_zero_ether_addr(addr)) {
611 wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL,
613 /* MLME-SETPROTECTION.request(None) */
614 wpa_drv_mlme_setprotection(
616 MLME_SETPROTECTION_PROTECT_TYPE_NONE,
617 MLME_SETPROTECTION_KEY_TYPE_PAIRWISE);
619 wpa_s->keys_cleared = (u32) -1;
624 * wpa_supplicant_state_txt - Get the connection state name as a text string
625 * @state: State (wpa_state; WPA_*)
626 * Returns: The state name as a printable text string
628 const char * wpa_supplicant_state_txt(enum wpa_states state)
631 case WPA_DISCONNECTED:
632 return "DISCONNECTED";
635 case WPA_INTERFACE_DISABLED:
636 return "INTERFACE_DISABLED";
639 case WPA_AUTHENTICATING:
640 return "AUTHENTICATING";
641 case WPA_ASSOCIATING:
642 return "ASSOCIATING";
645 case WPA_4WAY_HANDSHAKE:
646 return "4WAY_HANDSHAKE";
647 case WPA_GROUP_HANDSHAKE:
648 return "GROUP_HANDSHAKE";
659 static void wpa_supplicant_start_bgscan(struct wpa_supplicant *wpa_s)
663 if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan)
664 name = wpa_s->current_ssid->bgscan;
666 name = wpa_s->conf->bgscan;
667 if (name == NULL || name[0] == '\0')
669 if (wpas_driver_bss_selection(wpa_s))
671 if (wpa_s->current_ssid == wpa_s->bgscan_ssid)
674 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
676 #endif /* CONFIG_P2P */
678 bgscan_deinit(wpa_s);
679 if (wpa_s->current_ssid) {
680 if (bgscan_init(wpa_s, wpa_s->current_ssid, name)) {
681 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
684 * Live without bgscan; it is only used as a roaming
685 * optimization, so the initial connection is not
689 struct wpa_scan_results *scan_res;
690 wpa_s->bgscan_ssid = wpa_s->current_ssid;
691 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL,
694 bgscan_notify_scan(wpa_s, scan_res);
695 wpa_scan_results_free(scan_res);
699 wpa_s->bgscan_ssid = NULL;
703 static void wpa_supplicant_stop_bgscan(struct wpa_supplicant *wpa_s)
705 if (wpa_s->bgscan_ssid != NULL) {
706 bgscan_deinit(wpa_s);
707 wpa_s->bgscan_ssid = NULL;
711 #endif /* CONFIG_BGSCAN */
714 static void wpa_supplicant_start_autoscan(struct wpa_supplicant *wpa_s)
716 if (autoscan_init(wpa_s, 0))
717 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize autoscan");
721 static void wpa_supplicant_stop_autoscan(struct wpa_supplicant *wpa_s)
723 autoscan_deinit(wpa_s);
727 void wpa_supplicant_reinit_autoscan(struct wpa_supplicant *wpa_s)
729 if (wpa_s->wpa_state == WPA_DISCONNECTED ||
730 wpa_s->wpa_state == WPA_SCANNING) {
731 autoscan_deinit(wpa_s);
732 wpa_supplicant_start_autoscan(wpa_s);
738 * wpa_supplicant_set_state - Set current connection state
739 * @wpa_s: Pointer to wpa_supplicant data
740 * @state: The new connection state
742 * This function is called whenever the connection state changes, e.g.,
743 * association is completed for WPA/WPA2 4-Way Handshake is started.
745 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
746 enum wpa_states state)
748 enum wpa_states old_state = wpa_s->wpa_state;
750 wpa_dbg(wpa_s, MSG_DEBUG, "State: %s -> %s",
751 wpa_supplicant_state_txt(wpa_s->wpa_state),
752 wpa_supplicant_state_txt(state));
754 if (state == WPA_INTERFACE_DISABLED) {
755 /* Assure normal scan when interface is restored */
756 wpa_s->normal_scans = 0;
759 if (state == WPA_COMPLETED) {
760 wpas_connect_work_done(wpa_s);
761 /* Reinitialize normal_scan counter */
762 wpa_s->normal_scans = 0;
767 * P2PS client has to reply to Probe Request frames received on the
768 * group operating channel. Enable Probe Request frame reporting for
769 * P2P connected client in case p2p_cli_probe configuration property is
772 if (wpa_s->conf->p2p_cli_probe && wpa_s->current_ssid &&
773 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
774 wpa_s->current_ssid->p2p_group) {
775 if (state == WPA_COMPLETED && !wpa_s->p2p_cli_probe) {
776 wpa_dbg(wpa_s, MSG_DEBUG,
777 "P2P: Enable CLI Probe Request RX reporting");
778 wpa_s->p2p_cli_probe =
779 wpa_drv_probe_req_report(wpa_s, 1) >= 0;
780 } else if (state != WPA_COMPLETED && wpa_s->p2p_cli_probe) {
781 wpa_dbg(wpa_s, MSG_DEBUG,
782 "P2P: Disable CLI Probe Request RX reporting");
783 wpa_s->p2p_cli_probe = 0;
784 wpa_drv_probe_req_report(wpa_s, 0);
787 #endif /* CONFIG_P2P */
789 if (state != WPA_SCANNING)
790 wpa_supplicant_notify_scanning(wpa_s, 0);
792 if (state == WPA_COMPLETED && wpa_s->new_connection) {
793 struct wpa_ssid *ssid = wpa_s->current_ssid;
794 #if defined(CONFIG_CTRL_IFACE) || !defined(CONFIG_NO_STDOUT_DEBUG)
795 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CONNECTED "- Connection to "
796 MACSTR " completed [id=%d id_str=%s]",
797 MAC2STR(wpa_s->bssid),
798 ssid ? ssid->id : -1,
799 ssid && ssid->id_str ? ssid->id_str : "");
800 #endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
801 wpas_clear_temp_disabled(wpa_s, ssid, 1);
802 wpa_blacklist_clear(wpa_s);
803 wpa_s->extra_blacklist_count = 0;
804 wpa_s->new_connection = 0;
805 wpa_drv_set_operstate(wpa_s, 1);
806 #ifndef IEEE8021X_EAPOL
807 wpa_drv_set_supp_port(wpa_s, 1);
808 #endif /* IEEE8021X_EAPOL */
809 wpa_s->after_wps = 0;
810 wpa_s->known_wps_freq = 0;
811 wpas_p2p_completed(wpa_s);
813 sme_sched_obss_scan(wpa_s, 1);
814 } else if (state == WPA_DISCONNECTED || state == WPA_ASSOCIATING ||
815 state == WPA_ASSOCIATED) {
816 wpa_s->new_connection = 1;
817 wpa_drv_set_operstate(wpa_s, 0);
818 #ifndef IEEE8021X_EAPOL
819 wpa_drv_set_supp_port(wpa_s, 0);
820 #endif /* IEEE8021X_EAPOL */
821 sme_sched_obss_scan(wpa_s, 0);
823 wpa_s->wpa_state = state;
826 if (state == WPA_COMPLETED)
827 wpa_supplicant_start_bgscan(wpa_s);
828 else if (state < WPA_ASSOCIATED)
829 wpa_supplicant_stop_bgscan(wpa_s);
830 #endif /* CONFIG_BGSCAN */
832 if (state == WPA_AUTHENTICATING)
833 wpa_supplicant_stop_autoscan(wpa_s);
835 if (state == WPA_DISCONNECTED || state == WPA_INACTIVE)
836 wpa_supplicant_start_autoscan(wpa_s);
838 if (old_state >= WPA_ASSOCIATED && wpa_s->wpa_state < WPA_ASSOCIATED)
839 wmm_ac_notify_disassoc(wpa_s);
841 if (wpa_s->wpa_state != old_state) {
842 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
845 * Notify the P2P Device interface about a state change in one
848 wpas_p2p_indicate_state_change(wpa_s);
850 if (wpa_s->wpa_state == WPA_COMPLETED ||
851 old_state == WPA_COMPLETED)
852 wpas_notify_auth_changed(wpa_s);
857 void wpa_supplicant_terminate_proc(struct wpa_global *global)
861 struct wpa_supplicant *wpa_s = global->ifaces;
863 struct wpa_supplicant *next = wpa_s->next;
864 if (wpas_wps_terminate_pending(wpa_s) == 1)
867 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE ||
868 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group))
869 wpas_p2p_disconnect(wpa_s);
870 #endif /* CONFIG_P2P */
873 #endif /* CONFIG_WPS */
880 static void wpa_supplicant_terminate(int sig, void *signal_ctx)
882 struct wpa_global *global = signal_ctx;
883 wpa_supplicant_terminate_proc(global);
887 void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s)
889 enum wpa_states old_state = wpa_s->wpa_state;
891 wpa_s->pairwise_cipher = 0;
892 wpa_s->group_cipher = 0;
893 wpa_s->mgmt_group_cipher = 0;
895 if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED)
896 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
898 if (wpa_s->wpa_state != old_state)
899 wpas_notify_state_changed(wpa_s, wpa_s->wpa_state, old_state);
904 * wpa_supplicant_reload_configuration - Reload configuration data
905 * @wpa_s: Pointer to wpa_supplicant data
906 * Returns: 0 on success or -1 if configuration parsing failed
908 * This function can be used to request that the configuration data is reloaded
909 * (e.g., after configuration file change). This function is reloading
910 * configuration only for one interface, so this may need to be called multiple
911 * times if %wpa_supplicant is controlling multiple interfaces and all
912 * interfaces need reconfiguration.
914 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s)
916 struct wpa_config *conf;
920 if (wpa_s->confname == NULL)
922 conf = wpa_config_read(wpa_s->confname, NULL);
924 wpa_msg(wpa_s, MSG_ERROR, "Failed to parse the configuration "
925 "file '%s' - exiting", wpa_s->confname);
928 wpa_config_read(wpa_s->confanother, conf);
930 conf->changed_parameters = (unsigned int) -1;
932 reconf_ctrl = !!conf->ctrl_interface != !!wpa_s->conf->ctrl_interface
933 || (conf->ctrl_interface && wpa_s->conf->ctrl_interface &&
934 os_strcmp(conf->ctrl_interface,
935 wpa_s->conf->ctrl_interface) != 0);
937 if (reconf_ctrl && wpa_s->ctrl_iface) {
938 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
939 wpa_s->ctrl_iface = NULL;
942 eapol_sm_invalidate_cached_session(wpa_s->eapol);
943 if (wpa_s->current_ssid) {
944 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
945 wpa_s->own_disconnect_req = 1;
946 wpa_supplicant_deauthenticate(wpa_s,
947 WLAN_REASON_DEAUTH_LEAVING);
951 * TODO: should notify EAPOL SM about changes in opensc_engine_path,
952 * pkcs11_engine_path, pkcs11_module_path, openssl_ciphers.
954 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
956 * Clear forced success to clear EAP state for next
959 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
961 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
962 wpa_sm_set_config(wpa_s->wpa, NULL);
963 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
964 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
965 rsn_preauth_deinit(wpa_s->wpa);
967 old_ap_scan = wpa_s->conf->ap_scan;
968 wpa_config_free(wpa_s->conf);
970 if (old_ap_scan != wpa_s->conf->ap_scan)
971 wpas_notify_ap_scan_changed(wpa_s);
974 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
976 wpa_supplicant_update_config(wpa_s);
978 wpa_supplicant_clear_status(wpa_s);
979 if (wpa_supplicant_enabled_networks(wpa_s)) {
980 wpa_s->reassociate = 1;
981 wpa_supplicant_req_scan(wpa_s, 0, 0);
983 wpa_dbg(wpa_s, MSG_DEBUG, "Reconfiguration completed");
988 static void wpa_supplicant_reconfig(int sig, void *signal_ctx)
990 struct wpa_global *global = signal_ctx;
991 struct wpa_supplicant *wpa_s;
992 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
993 wpa_dbg(wpa_s, MSG_DEBUG, "Signal %d received - reconfiguring",
995 if (wpa_supplicant_reload_configuration(wpa_s) < 0) {
996 wpa_supplicant_terminate_proc(global);
1000 if (wpa_debug_reopen_file() < 0) {
1001 /* Ignore errors since we cannot really do much to fix this */
1002 wpa_printf(MSG_DEBUG, "Could not reopen debug log file");
1007 static int wpa_supplicant_suites_from_ai(struct wpa_supplicant *wpa_s,
1008 struct wpa_ssid *ssid,
1009 struct wpa_ie_data *ie)
1011 int ret = wpa_sm_parse_own_wpa_ie(wpa_s->wpa, ie);
1014 wpa_msg(wpa_s, MSG_INFO, "WPA: Failed to parse WPA IE "
1015 "from association info");
1020 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Using WPA IE from AssocReq to set "
1022 if (!(ie->group_cipher & ssid->group_cipher)) {
1023 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled group "
1024 "cipher 0x%x (mask 0x%x) - reject",
1025 ie->group_cipher, ssid->group_cipher);
1028 if (!(ie->pairwise_cipher & ssid->pairwise_cipher)) {
1029 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled pairwise "
1030 "cipher 0x%x (mask 0x%x) - reject",
1031 ie->pairwise_cipher, ssid->pairwise_cipher);
1034 if (!(ie->key_mgmt & ssid->key_mgmt)) {
1035 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver used disabled key "
1036 "management 0x%x (mask 0x%x) - reject",
1037 ie->key_mgmt, ssid->key_mgmt);
1041 #ifdef CONFIG_IEEE80211W
1042 if (!(ie->capabilities & WPA_CAPABILITY_MFPC) &&
1043 wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) {
1044 wpa_msg(wpa_s, MSG_INFO, "WPA: Driver associated with an AP "
1045 "that does not support management frame protection - "
1049 #endif /* CONFIG_IEEE80211W */
1056 * wpa_supplicant_set_suites - Set authentication and encryption parameters
1057 * @wpa_s: Pointer to wpa_supplicant data
1058 * @bss: Scan results for the selected BSS, or %NULL if not available
1059 * @ssid: Configuration data for the selected network
1060 * @wpa_ie: Buffer for the WPA/RSN IE
1061 * @wpa_ie_len: Maximum wpa_ie buffer size on input. This is changed to be the
1062 * used buffer length in case the functions returns success.
1063 * Returns: 0 on success or -1 on failure
1065 * This function is used to configure authentication and encryption parameters
1066 * based on the network configuration and scan result for the selected BSS (if
1069 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
1070 struct wpa_bss *bss, struct wpa_ssid *ssid,
1071 u8 *wpa_ie, size_t *wpa_ie_len)
1073 struct wpa_ie_data ie;
1075 const u8 *bss_wpa, *bss_rsn, *bss_osen;
1078 bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1079 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1080 bss_osen = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1082 bss_wpa = bss_rsn = bss_osen = NULL;
1084 if (bss_rsn && (ssid->proto & WPA_PROTO_RSN) &&
1085 wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie) == 0 &&
1086 (ie.group_cipher & ssid->group_cipher) &&
1087 (ie.pairwise_cipher & ssid->pairwise_cipher) &&
1088 (ie.key_mgmt & ssid->key_mgmt)) {
1089 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using IEEE 802.11i/D9.0");
1090 proto = WPA_PROTO_RSN;
1091 } else if (bss_wpa && (ssid->proto & WPA_PROTO_WPA) &&
1092 wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie) == 0 &&
1093 (ie.group_cipher & ssid->group_cipher) &&
1094 (ie.pairwise_cipher & ssid->pairwise_cipher) &&
1095 (ie.key_mgmt & ssid->key_mgmt)) {
1096 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using IEEE 802.11i/D3.0");
1097 proto = WPA_PROTO_WPA;
1099 } else if (bss_osen && (ssid->proto & WPA_PROTO_OSEN)) {
1100 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using OSEN");
1101 /* TODO: parse OSEN element */
1102 os_memset(&ie, 0, sizeof(ie));
1103 ie.group_cipher = WPA_CIPHER_CCMP;
1104 ie.pairwise_cipher = WPA_CIPHER_CCMP;
1105 ie.key_mgmt = WPA_KEY_MGMT_OSEN;
1106 proto = WPA_PROTO_OSEN;
1107 #endif /* CONFIG_HS20 */
1109 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select WPA/RSN");
1110 wpa_dbg(wpa_s, MSG_DEBUG,
1111 "WPA: ssid proto=0x%x pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1112 ssid->proto, ssid->pairwise_cipher, ssid->group_cipher,
1114 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: BSS " MACSTR " ssid='%s'%s%s%s",
1115 MAC2STR(bss->bssid),
1116 wpa_ssid_txt(bss->ssid, bss->ssid_len),
1117 bss_wpa ? " WPA" : "",
1118 bss_rsn ? " RSN" : "",
1119 bss_osen ? " OSEN" : "");
1121 wpa_hexdump(MSG_DEBUG, "RSN", bss_rsn, 2 + bss_rsn[1]);
1122 if (wpa_parse_wpa_ie(bss_rsn, 2 + bss_rsn[1], &ie)) {
1123 wpa_dbg(wpa_s, MSG_DEBUG,
1124 "Could not parse RSN element");
1126 wpa_dbg(wpa_s, MSG_DEBUG,
1127 "RSN: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1128 ie.pairwise_cipher, ie.group_cipher,
1133 wpa_hexdump(MSG_DEBUG, "WPA", bss_wpa, 2 + bss_wpa[1]);
1134 if (wpa_parse_wpa_ie(bss_wpa, 2 + bss_wpa[1], &ie)) {
1135 wpa_dbg(wpa_s, MSG_DEBUG,
1136 "Could not parse WPA element");
1138 wpa_dbg(wpa_s, MSG_DEBUG,
1139 "WPA: pairwise_cipher=0x%x group_cipher=0x%x key_mgmt=0x%x",
1140 ie.pairwise_cipher, ie.group_cipher,
1146 if (ssid->proto & WPA_PROTO_OSEN)
1147 proto = WPA_PROTO_OSEN;
1148 else if (ssid->proto & WPA_PROTO_RSN)
1149 proto = WPA_PROTO_RSN;
1151 proto = WPA_PROTO_WPA;
1152 if (wpa_supplicant_suites_from_ai(wpa_s, ssid, &ie) < 0) {
1153 os_memset(&ie, 0, sizeof(ie));
1154 ie.group_cipher = ssid->group_cipher;
1155 ie.pairwise_cipher = ssid->pairwise_cipher;
1156 ie.key_mgmt = ssid->key_mgmt;
1157 #ifdef CONFIG_IEEE80211W
1158 ie.mgmt_group_cipher =
1159 ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION ?
1160 WPA_CIPHER_AES_128_CMAC : 0;
1161 #endif /* CONFIG_IEEE80211W */
1162 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Set cipher suites "
1163 "based on configuration");
1168 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected cipher suites: group %d "
1169 "pairwise %d key_mgmt %d proto %d",
1170 ie.group_cipher, ie.pairwise_cipher, ie.key_mgmt, proto);
1171 #ifdef CONFIG_IEEE80211W
1172 if (ssid->ieee80211w) {
1173 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected mgmt group cipher %d",
1174 ie.mgmt_group_cipher);
1176 #endif /* CONFIG_IEEE80211W */
1178 wpa_s->wpa_proto = proto;
1179 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, proto);
1180 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
1181 !!(ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)));
1183 if (bss || !wpa_s->ap_ies_from_associnfo) {
1184 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1185 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1186 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1187 bss_rsn ? 2 + bss_rsn[1] : 0))
1191 #ifdef CONFIG_NO_WPA
1192 wpa_s->group_cipher = WPA_CIPHER_NONE;
1193 wpa_s->pairwise_cipher = WPA_CIPHER_NONE;
1194 #else /* CONFIG_NO_WPA */
1195 sel = ie.group_cipher & ssid->group_cipher;
1196 wpa_s->group_cipher = wpa_pick_group_cipher(sel);
1197 if (wpa_s->group_cipher < 0) {
1198 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select group "
1202 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
1203 wpa_cipher_txt(wpa_s->group_cipher));
1205 sel = ie.pairwise_cipher & ssid->pairwise_cipher;
1206 wpa_s->pairwise_cipher = wpa_pick_pairwise_cipher(sel, 1);
1207 if (wpa_s->pairwise_cipher < 0) {
1208 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select pairwise "
1212 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
1213 wpa_cipher_txt(wpa_s->pairwise_cipher));
1214 #endif /* CONFIG_NO_WPA */
1216 sel = ie.key_mgmt & ssid->key_mgmt;
1218 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE))
1219 sel &= ~(WPA_KEY_MGMT_SAE | WPA_KEY_MGMT_FT_SAE);
1220 #endif /* CONFIG_SAE */
1222 #ifdef CONFIG_SUITEB192
1223 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
1224 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
1225 wpa_dbg(wpa_s, MSG_DEBUG,
1226 "WPA: using KEY_MGMT 802.1X with Suite B (192-bit)");
1227 #endif /* CONFIG_SUITEB192 */
1228 #ifdef CONFIG_SUITEB
1229 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
1230 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SUITE_B;
1231 wpa_dbg(wpa_s, MSG_DEBUG,
1232 "WPA: using KEY_MGMT 802.1X with Suite B");
1233 #endif /* CONFIG_SUITEB */
1234 #ifdef CONFIG_IEEE80211R
1235 } else if (sel & WPA_KEY_MGMT_FT_IEEE8021X) {
1236 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_IEEE8021X;
1237 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/802.1X");
1238 } else if (sel & WPA_KEY_MGMT_FT_PSK) {
1239 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_PSK;
1240 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT FT/PSK");
1241 #endif /* CONFIG_IEEE80211R */
1243 } else if (sel & WPA_KEY_MGMT_SAE) {
1244 wpa_s->key_mgmt = WPA_KEY_MGMT_SAE;
1245 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT SAE");
1246 } else if (sel & WPA_KEY_MGMT_FT_SAE) {
1247 wpa_s->key_mgmt = WPA_KEY_MGMT_FT_SAE;
1248 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: using KEY_MGMT FT/SAE");
1249 #endif /* CONFIG_SAE */
1250 #ifdef CONFIG_IEEE80211W
1251 } else if (sel & WPA_KEY_MGMT_IEEE8021X_SHA256) {
1252 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X_SHA256;
1253 wpa_dbg(wpa_s, MSG_DEBUG,
1254 "WPA: using KEY_MGMT 802.1X with SHA256");
1255 } else if (sel & WPA_KEY_MGMT_PSK_SHA256) {
1256 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK_SHA256;
1257 wpa_dbg(wpa_s, MSG_DEBUG,
1258 "WPA: using KEY_MGMT PSK with SHA256");
1259 #endif /* CONFIG_IEEE80211W */
1260 } else if (sel & WPA_KEY_MGMT_IEEE8021X) {
1261 wpa_s->key_mgmt = WPA_KEY_MGMT_IEEE8021X;
1262 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT 802.1X");
1263 } else if (sel & WPA_KEY_MGMT_PSK) {
1264 wpa_s->key_mgmt = WPA_KEY_MGMT_PSK;
1265 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-PSK");
1266 } else if (sel & WPA_KEY_MGMT_WPA_NONE) {
1267 wpa_s->key_mgmt = WPA_KEY_MGMT_WPA_NONE;
1268 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT WPA-NONE");
1270 } else if (sel & WPA_KEY_MGMT_OSEN) {
1271 wpa_s->key_mgmt = WPA_KEY_MGMT_OSEN;
1272 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: using KEY_MGMT OSEN");
1273 #endif /* CONFIG_HS20 */
1275 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to select "
1276 "authenticated key management type");
1280 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
1281 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
1282 wpa_s->pairwise_cipher);
1283 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
1285 #ifdef CONFIG_IEEE80211W
1286 sel = ie.mgmt_group_cipher;
1287 if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION ||
1288 !(ie.capabilities & WPA_CAPABILITY_MFPC))
1290 if (sel & WPA_CIPHER_AES_128_CMAC) {
1291 wpa_s->mgmt_group_cipher = WPA_CIPHER_AES_128_CMAC;
1292 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1294 } else if (sel & WPA_CIPHER_BIP_GMAC_128) {
1295 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_128;
1296 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1298 } else if (sel & WPA_CIPHER_BIP_GMAC_256) {
1299 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_GMAC_256;
1300 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1302 } else if (sel & WPA_CIPHER_BIP_CMAC_256) {
1303 wpa_s->mgmt_group_cipher = WPA_CIPHER_BIP_CMAC_256;
1304 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher "
1307 wpa_s->mgmt_group_cipher = 0;
1308 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
1310 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
1311 wpa_s->mgmt_group_cipher);
1312 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP,
1313 wpas_get_ssid_pmf(wpa_s, ssid));
1314 #endif /* CONFIG_IEEE80211W */
1316 if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) {
1317 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE");
1321 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt)) {
1324 if (ssid->psk_set) {
1325 wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL,
1329 #ifndef CONFIG_NO_PBKDF2
1330 if (bss && ssid->bssid_set && ssid->ssid_len == 0 &&
1333 pbkdf2_sha1(ssid->passphrase, bss->ssid, bss->ssid_len,
1334 4096, psk, PMK_LEN);
1335 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
1337 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL, NULL);
1339 os_memset(psk, 0, sizeof(psk));
1341 #endif /* CONFIG_NO_PBKDF2 */
1342 #ifdef CONFIG_EXT_PASSWORD
1343 if (ssid->ext_psk) {
1344 struct wpabuf *pw = ext_password_get(wpa_s->ext_pw,
1346 char pw_str[64 + 1];
1350 wpa_msg(wpa_s, MSG_INFO, "EXT PW: No PSK "
1351 "found from external storage");
1355 if (wpabuf_len(pw) < 8 || wpabuf_len(pw) > 64) {
1356 wpa_msg(wpa_s, MSG_INFO, "EXT PW: Unexpected "
1357 "PSK length %d in external storage",
1358 (int) wpabuf_len(pw));
1359 ext_password_free(pw);
1363 os_memcpy(pw_str, wpabuf_head(pw), wpabuf_len(pw));
1364 pw_str[wpabuf_len(pw)] = '\0';
1366 #ifndef CONFIG_NO_PBKDF2
1367 if (wpabuf_len(pw) >= 8 && wpabuf_len(pw) < 64 && bss)
1369 pbkdf2_sha1(pw_str, bss->ssid, bss->ssid_len,
1370 4096, psk, PMK_LEN);
1371 os_memset(pw_str, 0, sizeof(pw_str));
1372 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from "
1373 "external passphrase)",
1375 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL,
1378 os_memset(psk, 0, sizeof(psk));
1380 #endif /* CONFIG_NO_PBKDF2 */
1381 if (wpabuf_len(pw) == 2 * PMK_LEN) {
1382 if (hexstr2bin(pw_str, psk, PMK_LEN) < 0) {
1383 wpa_msg(wpa_s, MSG_INFO, "EXT PW: "
1384 "Invalid PSK hex string");
1385 os_memset(pw_str, 0, sizeof(pw_str));
1386 ext_password_free(pw);
1389 wpa_sm_set_pmk(wpa_s->wpa, psk, PMK_LEN, NULL,
1392 os_memset(psk, 0, sizeof(psk));
1394 wpa_msg(wpa_s, MSG_INFO, "EXT PW: No suitable "
1396 os_memset(pw_str, 0, sizeof(pw_str));
1397 ext_password_free(pw);
1401 os_memset(pw_str, 0, sizeof(pw_str));
1402 ext_password_free(pw);
1404 #endif /* CONFIG_EXT_PASSWORD */
1407 wpa_msg(wpa_s, MSG_INFO,
1408 "No PSK available for association");
1412 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
1418 static void wpas_ext_capab_byte(struct wpa_supplicant *wpa_s, u8 *pos, int idx)
1423 case 0: /* Bits 0-7 */
1425 case 1: /* Bits 8-15 */
1427 case 2: /* Bits 16-23 */
1429 *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */
1430 *pos |= 0x08; /* Bit 19 - BSS Transition */
1431 #endif /* CONFIG_WNM */
1433 case 3: /* Bits 24-31 */
1435 *pos |= 0x02; /* Bit 25 - SSID List */
1436 #endif /* CONFIG_WNM */
1437 #ifdef CONFIG_INTERWORKING
1438 if (wpa_s->conf->interworking)
1439 *pos |= 0x80; /* Bit 31 - Interworking */
1440 #endif /* CONFIG_INTERWORKING */
1442 case 4: /* Bits 32-39 */
1443 #ifdef CONFIG_INTERWORKING
1444 if (wpa_s->drv_flags / WPA_DRIVER_FLAGS_QOS_MAPPING)
1445 *pos |= 0x01; /* Bit 32 - QoS Map */
1446 #endif /* CONFIG_INTERWORKING */
1448 case 5: /* Bits 40-47 */
1450 if (wpa_s->conf->hs20)
1451 *pos |= 0x40; /* Bit 46 - WNM-Notification */
1452 #endif /* CONFIG_HS20 */
1454 *pos |= 0x40; /* Bit 46 - WNM-Notification */
1455 #endif /* CONFIG_MBO */
1457 case 6: /* Bits 48-55 */
1463 int wpas_build_ext_capab(struct wpa_supplicant *wpa_s, u8 *buf, size_t buflen)
1468 if (len < wpa_s->extended_capa_len)
1469 len = wpa_s->extended_capa_len;
1470 if (buflen < (size_t) len + 2) {
1471 wpa_printf(MSG_INFO,
1472 "Not enough room for building extended capabilities element");
1476 *pos++ = WLAN_EID_EXT_CAPAB;
1478 for (i = 0; i < len; i++, pos++) {
1479 wpas_ext_capab_byte(wpa_s, pos, i);
1481 if (i < wpa_s->extended_capa_len) {
1482 *pos &= ~wpa_s->extended_capa_mask[i];
1483 *pos |= wpa_s->extended_capa[i];
1487 while (len > 0 && buf[1 + len] == 0) {
1498 static int wpas_valid_bss(struct wpa_supplicant *wpa_s,
1499 struct wpa_bss *test_bss)
1501 struct wpa_bss *bss;
1503 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1504 if (bss == test_bss)
1512 static int wpas_valid_ssid(struct wpa_supplicant *wpa_s,
1513 struct wpa_ssid *test_ssid)
1515 struct wpa_ssid *ssid;
1517 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1518 if (ssid == test_ssid)
1526 int wpas_valid_bss_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *test_bss,
1527 struct wpa_ssid *test_ssid)
1529 if (test_bss && !wpas_valid_bss(wpa_s, test_bss))
1532 return test_ssid == NULL || wpas_valid_ssid(wpa_s, test_ssid);
1536 void wpas_connect_work_free(struct wpa_connect_work *cwork)
1544 void wpas_connect_work_done(struct wpa_supplicant *wpa_s)
1546 struct wpa_connect_work *cwork;
1547 struct wpa_radio_work *work = wpa_s->connect_work;
1552 wpa_s->connect_work = NULL;
1555 wpas_connect_work_free(cwork);
1556 radio_work_done(work);
1560 int wpas_update_random_addr(struct wpa_supplicant *wpa_s, int style)
1562 struct os_reltime now;
1565 os_get_reltime(&now);
1566 if (wpa_s->last_mac_addr_style == style &&
1567 wpa_s->last_mac_addr_change.sec != 0 &&
1568 !os_reltime_expired(&now, &wpa_s->last_mac_addr_change,
1569 wpa_s->conf->rand_addr_lifetime)) {
1570 wpa_msg(wpa_s, MSG_DEBUG,
1571 "Previously selected random MAC address has not yet expired");
1577 if (random_mac_addr(addr) < 0)
1581 os_memcpy(addr, wpa_s->perm_addr, ETH_ALEN);
1582 if (random_mac_addr_keep_oui(addr) < 0)
1589 if (wpa_drv_set_mac_addr(wpa_s, addr) < 0) {
1590 wpa_msg(wpa_s, MSG_INFO,
1591 "Failed to set random MAC address");
1595 os_get_reltime(&wpa_s->last_mac_addr_change);
1596 wpa_s->mac_addr_changed = 1;
1597 wpa_s->last_mac_addr_style = style;
1599 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
1600 wpa_msg(wpa_s, MSG_INFO,
1601 "Could not update MAC address information");
1605 wpa_msg(wpa_s, MSG_DEBUG, "Using random MAC address " MACSTR,
1612 int wpas_update_random_addr_disassoc(struct wpa_supplicant *wpa_s)
1614 if (wpa_s->wpa_state >= WPA_AUTHENTICATING ||
1615 !wpa_s->conf->preassoc_mac_addr)
1618 return wpas_update_random_addr(wpa_s, wpa_s->conf->preassoc_mac_addr);
1622 static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit);
1625 * wpa_supplicant_associate - Request association
1626 * @wpa_s: Pointer to wpa_supplicant data
1627 * @bss: Scan results for the selected BSS, or %NULL if not available
1628 * @ssid: Configuration data for the selected network
1630 * This function is used to request %wpa_supplicant to associate with a BSS.
1632 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
1633 struct wpa_bss *bss, struct wpa_ssid *ssid)
1635 struct wpa_connect_work *cwork;
1638 wpa_s->own_disconnect_req = 0;
1641 * If we are starting a new connection, any previously pending EAPOL
1642 * RX cannot be valid anymore.
1644 wpabuf_free(wpa_s->pending_eapol_rx);
1645 wpa_s->pending_eapol_rx = NULL;
1647 if (ssid->mac_addr == -1)
1648 rand_style = wpa_s->conf->mac_addr;
1650 rand_style = ssid->mac_addr;
1652 wmm_ac_clear_saved_tspecs(wpa_s);
1653 wpa_s->reassoc_same_bss = 0;
1654 wpa_s->reassoc_same_ess = 0;
1656 if (wpa_s->last_ssid == ssid) {
1657 wpa_dbg(wpa_s, MSG_DEBUG, "Re-association to the same ESS");
1658 wpa_s->reassoc_same_ess = 1;
1659 if (wpa_s->current_bss && wpa_s->current_bss == bss) {
1660 wmm_ac_save_tspecs(wpa_s);
1661 wpa_s->reassoc_same_bss = 1;
1663 } else if (rand_style > 0) {
1664 if (wpas_update_random_addr(wpa_s, rand_style) < 0)
1666 wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
1667 } else if (wpa_s->mac_addr_changed) {
1668 if (wpa_drv_set_mac_addr(wpa_s, NULL) < 0) {
1669 wpa_msg(wpa_s, MSG_INFO,
1670 "Could not restore permanent MAC address");
1673 wpa_s->mac_addr_changed = 0;
1674 if (wpa_supplicant_update_mac_addr(wpa_s) < 0) {
1675 wpa_msg(wpa_s, MSG_INFO,
1676 "Could not update MAC address information");
1679 wpa_msg(wpa_s, MSG_DEBUG, "Using permanent MAC address");
1681 wpa_s->last_ssid = ssid;
1683 #ifdef CONFIG_IBSS_RSN
1684 ibss_rsn_deinit(wpa_s->ibss_rsn);
1685 wpa_s->ibss_rsn = NULL;
1686 #endif /* CONFIG_IBSS_RSN */
1688 if (ssid->mode == WPAS_MODE_AP || ssid->mode == WPAS_MODE_P2P_GO ||
1689 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1691 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP)) {
1692 wpa_msg(wpa_s, MSG_INFO, "Driver does not support AP "
1696 if (wpa_supplicant_create_ap(wpa_s, ssid) < 0) {
1697 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1698 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION)
1699 wpas_p2p_ap_setup_failed(wpa_s);
1702 wpa_s->current_bss = bss;
1703 #else /* CONFIG_AP */
1704 wpa_msg(wpa_s, MSG_ERROR, "AP mode support not included in "
1706 #endif /* CONFIG_AP */
1710 if (ssid->mode == WPAS_MODE_MESH) {
1712 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MESH)) {
1713 wpa_msg(wpa_s, MSG_INFO,
1714 "Driver does not support mesh mode");
1718 ssid->frequency = bss->freq;
1719 if (wpa_supplicant_join_mesh(wpa_s, ssid) < 0) {
1720 wpa_msg(wpa_s, MSG_ERROR, "Could not join mesh");
1723 wpa_s->current_bss = bss;
1724 wpa_msg(wpa_s, MSG_INFO, MESH_GROUP_STARTED "ssid=\"%s\" id=%d",
1725 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1727 #else /* CONFIG_MESH */
1728 wpa_msg(wpa_s, MSG_ERROR,
1729 "mesh mode support not included in the build");
1730 #endif /* CONFIG_MESH */
1736 wpa_tdls_ap_ies(wpa_s->wpa, (const u8 *) (bss + 1),
1738 #endif /* CONFIG_TDLS */
1740 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1741 ssid->mode == IEEE80211_MODE_INFRA) {
1742 sme_authenticate(wpa_s, bss, ssid);
1746 if (wpa_s->connect_work) {
1747 wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since connect_work exist");
1751 if (radio_work_pending(wpa_s, "connect")) {
1752 wpa_dbg(wpa_s, MSG_DEBUG, "Reject wpa_supplicant_associate() call since pending work exist");
1756 wpas_abort_ongoing_scan(wpa_s);
1758 cwork = os_zalloc(sizeof(*cwork));
1765 if (radio_add_work(wpa_s, bss ? bss->freq : 0, "connect", 1,
1766 wpas_start_assoc_cb, cwork) < 0) {
1772 static int bss_is_ibss(struct wpa_bss *bss)
1774 return (bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
1779 static int drv_supports_vht(struct wpa_supplicant *wpa_s,
1780 const struct wpa_ssid *ssid)
1782 enum hostapd_hw_mode hw_mode;
1783 struct hostapd_hw_modes *mode = NULL;
1787 #ifdef CONFIG_HT_OVERRIDES
1788 if (ssid->disable_ht)
1790 #endif /* CONFIG_HT_OVERRIDES */
1792 hw_mode = ieee80211_freq_to_chan(ssid->frequency, &channel);
1793 if (hw_mode == NUM_HOSTAPD_MODES)
1795 for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) {
1796 if (wpa_s->hw.modes[i].mode == hw_mode) {
1797 mode = &wpa_s->hw.modes[i];
1805 return mode->vht_capab != 0;
1809 void ibss_mesh_setup_freq(struct wpa_supplicant *wpa_s,
1810 const struct wpa_ssid *ssid,
1811 struct hostapd_freq_params *freq)
1813 enum hostapd_hw_mode hw_mode;
1814 struct hostapd_hw_modes *mode = NULL;
1815 int ht40plus[] = { 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157,
1817 int vht80[] = { 36, 52, 100, 116, 132, 149 };
1818 struct hostapd_channel_data *pri_chan = NULL, *sec_chan = NULL;
1820 int i, chan_idx, ht40 = -1, res, obss_scan = 1;
1822 struct hostapd_freq_params vht_freq;
1823 int chwidth, seg0, seg1;
1826 freq->freq = ssid->frequency;
1828 for (j = 0; j < wpa_s->last_scan_res_used; j++) {
1829 struct wpa_bss *bss = wpa_s->last_scan_res[j];
1831 if (ssid->mode != WPAS_MODE_IBSS)
1834 /* Don't adjust control freq in case of fixed_freq */
1835 if (ssid->fixed_freq)
1838 if (!bss_is_ibss(bss))
1841 if (ssid->ssid_len == bss->ssid_len &&
1842 os_memcmp(ssid->ssid, bss->ssid, bss->ssid_len) == 0) {
1843 wpa_printf(MSG_DEBUG,
1844 "IBSS already found in scan results, adjust control freq: %d",
1846 freq->freq = bss->freq;
1852 /* For IBSS check HT_IBSS flag */
1853 if (ssid->mode == WPAS_MODE_IBSS &&
1854 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_HT_IBSS))
1857 if (wpa_s->group_cipher == WPA_CIPHER_WEP40 ||
1858 wpa_s->group_cipher == WPA_CIPHER_WEP104 ||
1859 wpa_s->pairwise_cipher == WPA_CIPHER_TKIP) {
1860 wpa_printf(MSG_DEBUG,
1861 "IBSS: WEP/TKIP detected, do not try to enable HT");
1865 hw_mode = ieee80211_freq_to_chan(freq->freq, &channel);
1866 for (i = 0; wpa_s->hw.modes && i < wpa_s->hw.num_modes; i++) {
1867 if (wpa_s->hw.modes[i].mode == hw_mode) {
1868 mode = &wpa_s->hw.modes[i];
1876 freq->ht_enabled = ht_supported(mode);
1877 if (!freq->ht_enabled)
1880 /* Setup higher BW only for 5 GHz */
1881 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
1884 for (chan_idx = 0; chan_idx < mode->num_channels; chan_idx++) {
1885 pri_chan = &mode->channels[chan_idx];
1886 if (pri_chan->chan == channel)
1893 /* Check primary channel flags */
1894 if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1897 /* Check/setup HT40+/HT40- */
1898 for (j = 0; j < ARRAY_SIZE(ht40plus); j++) {
1899 if (ht40plus[j] == channel) {
1905 /* Find secondary channel */
1906 for (i = 0; i < mode->num_channels; i++) {
1907 sec_chan = &mode->channels[i];
1908 if (sec_chan->chan == channel + ht40 * 4)
1915 /* Check secondary channel flags */
1916 if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1919 freq->channel = pri_chan->chan;
1923 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS))
1925 freq->sec_channel_offset = -1;
1928 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40PLUS))
1930 freq->sec_channel_offset = 1;
1936 if (freq->sec_channel_offset && obss_scan) {
1937 struct wpa_scan_results *scan_res;
1939 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, 0);
1940 if (scan_res == NULL) {
1942 freq->sec_channel_offset = 0;
1946 res = check_40mhz_5g(mode, scan_res, pri_chan->chan,
1951 freq->sec_channel_offset = 0;
1954 /* Configuration allowed */
1957 /* Switch pri/sec channels */
1958 freq->freq = hw_get_freq(mode, sec_chan->chan);
1959 freq->sec_channel_offset = -freq->sec_channel_offset;
1960 freq->channel = sec_chan->chan;
1963 freq->sec_channel_offset = 0;
1967 wpa_scan_results_free(scan_res);
1970 wpa_printf(MSG_DEBUG,
1971 "IBSS/mesh: setup freq channel %d, sec_channel_offset %d",
1972 freq->channel, freq->sec_channel_offset);
1974 if (!drv_supports_vht(wpa_s, ssid))
1977 /* For IBSS check VHT_IBSS flag */
1978 if (ssid->mode == WPAS_MODE_IBSS &&
1979 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_VHT_IBSS))
1984 vht_freq.vht_enabled = vht_supported(mode);
1985 if (!vht_freq.vht_enabled)
1988 /* setup center_freq1, bandwidth */
1989 for (j = 0; j < ARRAY_SIZE(vht80); j++) {
1990 if (freq->channel >= vht80[j] &&
1991 freq->channel < vht80[j] + 16)
1995 if (j == ARRAY_SIZE(vht80))
1998 for (i = vht80[j]; i < vht80[j] + 16; i += 4) {
1999 struct hostapd_channel_data *chan;
2001 chan = hw_get_channel_chan(mode, i, NULL);
2005 /* Back to HT configuration if channel not usable */
2006 if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
2010 chwidth = VHT_CHANWIDTH_80MHZ;
2011 seg0 = vht80[j] + 6;
2014 if (ssid->max_oper_chwidth == VHT_CHANWIDTH_80P80MHZ) {
2015 /* setup center_freq2, bandwidth */
2016 for (k = 0; k < ARRAY_SIZE(vht80); k++) {
2017 /* Only accept 80 MHz segments separated by a gap */
2018 if (j == k || abs(vht80[j] - vht80[k]) == 16)
2020 for (i = vht80[k]; i < vht80[k] + 16; i += 4) {
2021 struct hostapd_channel_data *chan;
2023 chan = hw_get_channel_chan(mode, i, NULL);
2027 if (chan->flag & (HOSTAPD_CHAN_DISABLED |
2028 HOSTAPD_CHAN_NO_IR |
2029 HOSTAPD_CHAN_RADAR))
2032 /* Found a suitable second segment for 80+80 */
2033 chwidth = VHT_CHANWIDTH_80P80MHZ;
2035 VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
2036 seg1 = vht80[k] + 6;
2039 if (chwidth == VHT_CHANWIDTH_80P80MHZ)
2042 } else if (ssid->max_oper_chwidth == VHT_CHANWIDTH_160MHZ) {
2043 if (freq->freq == 5180) {
2044 chwidth = VHT_CHANWIDTH_160MHZ;
2045 vht_caps |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
2047 } else if (freq->freq == 5520) {
2048 chwidth = VHT_CHANWIDTH_160MHZ;
2049 vht_caps |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
2054 if (hostapd_set_freq_params(&vht_freq, mode->mode, freq->freq,
2055 freq->channel, freq->ht_enabled,
2056 vht_freq.vht_enabled,
2057 freq->sec_channel_offset,
2058 chwidth, seg0, seg1, vht_caps) != 0)
2063 wpa_printf(MSG_DEBUG, "IBSS: VHT setup freq cf1 %d, cf2 %d, bw %d",
2064 freq->center_freq1, freq->center_freq2, freq->bandwidth);
2068 static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
2070 struct wpa_connect_work *cwork = work->ctx;
2071 struct wpa_bss *bss = cwork->bss;
2072 struct wpa_ssid *ssid = cwork->ssid;
2073 struct wpa_supplicant *wpa_s = work->wpa_s;
2076 int use_crypt, ret, i, bssid_changed;
2077 int algs = WPA_AUTH_ALG_OPEN;
2078 unsigned int cipher_pairwise, cipher_group;
2079 struct wpa_driver_associate_params params;
2080 int wep_keys_set = 0;
2081 int assoc_failed = 0;
2082 struct wpa_ssid *old_ssid;
2083 u8 prev_bssid[ETH_ALEN];
2084 #ifdef CONFIG_HT_OVERRIDES
2085 struct ieee80211_ht_capabilities htcaps;
2086 struct ieee80211_ht_capabilities htcaps_mask;
2087 #endif /* CONFIG_HT_OVERRIDES */
2088 #ifdef CONFIG_VHT_OVERRIDES
2089 struct ieee80211_vht_capabilities vhtcaps;
2090 struct ieee80211_vht_capabilities vhtcaps_mask;
2091 #endif /* CONFIG_VHT_OVERRIDES */
2093 const u8 *mbo = NULL;
2094 #endif /* CONFIG_MBO */
2097 if (work->started) {
2098 wpa_s->connect_work = NULL;
2100 /* cancel possible auth. timeout */
2101 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s,
2104 wpas_connect_work_free(cwork);
2108 wpa_s->connect_work = work;
2110 if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid) ||
2111 wpas_network_disabled(wpa_s, ssid)) {
2112 wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt");
2113 wpas_connect_work_done(wpa_s);
2117 os_memcpy(prev_bssid, wpa_s->bssid, ETH_ALEN);
2118 os_memset(¶ms, 0, sizeof(params));
2119 wpa_s->reassociate = 0;
2120 wpa_s->eap_expected_failure = 0;
2122 (!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) {
2123 #ifdef CONFIG_IEEE80211R
2124 const u8 *ie, *md = NULL;
2125 #endif /* CONFIG_IEEE80211R */
2126 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
2127 " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
2128 wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
2129 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
2130 os_memset(wpa_s->bssid, 0, ETH_ALEN);
2131 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
2133 wpas_notify_bssid_changed(wpa_s);
2134 #ifdef CONFIG_IEEE80211R
2135 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
2136 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
2138 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
2140 /* Prepare for the next transition */
2141 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
2143 #endif /* CONFIG_IEEE80211R */
2145 } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
2146 wpa_s->conf->ap_scan == 2 &&
2147 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
2148 /* Use ap_scan==1 style network selection to find the network
2150 wpas_connect_work_done(wpa_s);
2151 wpa_s->scan_req = MANUAL_SCAN_REQ;
2152 wpa_s->reassociate = 1;
2153 wpa_supplicant_req_scan(wpa_s, 0, 0);
2155 #endif /* CONFIG_WPS */
2157 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
2158 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2159 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2162 wpa_supplicant_cancel_sched_scan(wpa_s);
2164 wpa_supplicant_cancel_scan(wpa_s);
2166 /* Starting new association, so clear the possibly used WPA IE from the
2167 * previous association. */
2168 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2170 #ifdef IEEE8021X_EAPOL
2171 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2173 if (ssid->non_leap == 0)
2174 algs = WPA_AUTH_ALG_LEAP;
2176 algs |= WPA_AUTH_ALG_LEAP;
2179 #endif /* IEEE8021X_EAPOL */
2180 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs);
2181 if (ssid->auth_alg) {
2182 algs = ssid->auth_alg;
2183 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
2187 if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
2188 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
2189 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
2190 int try_opportunistic;
2191 try_opportunistic = (ssid->proactive_key_caching < 0 ?
2193 ssid->proactive_key_caching) &&
2194 (ssid->proto & WPA_PROTO_RSN);
2195 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
2196 ssid, try_opportunistic) == 0)
2197 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
2198 wpa_ie_len = sizeof(wpa_ie);
2199 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
2200 wpa_ie, &wpa_ie_len)) {
2201 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2202 "key management and encryption suites");
2203 wpas_connect_work_done(wpa_s);
2206 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss &&
2207 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
2209 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
2210 * use non-WPA since the scan results did not indicate that the
2211 * AP is using WPA or WPA2.
2213 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2215 wpa_s->wpa_proto = 0;
2216 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
2217 wpa_ie_len = sizeof(wpa_ie);
2218 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
2219 wpa_ie, &wpa_ie_len)) {
2220 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2221 "key management and encryption suites (no "
2223 wpas_connect_work_done(wpa_s);
2227 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2228 struct wpabuf *wps_ie;
2229 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
2230 if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) {
2231 wpa_ie_len = wpabuf_len(wps_ie);
2232 os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len);
2235 wpabuf_free(wps_ie);
2236 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2237 if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY))
2238 params.wps = WPS_MODE_PRIVACY;
2240 params.wps = WPS_MODE_OPEN;
2241 wpa_s->wpa_proto = 0;
2242 #endif /* CONFIG_WPS */
2244 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2246 wpa_s->wpa_proto = 0;
2250 if (wpa_s->global->p2p) {
2254 pos = wpa_ie + wpa_ie_len;
2255 len = sizeof(wpa_ie) - wpa_ie_len;
2256 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
2262 wpa_s->cross_connect_disallowed = 0;
2265 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
2267 wpa_s->cross_connect_disallowed =
2268 p2p_get_cross_connect_disallowed(p2p);
2270 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross "
2272 wpa_s->cross_connect_disallowed ?
2273 "disallows" : "allows");
2277 os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info));
2278 #endif /* CONFIG_P2P */
2282 mbo = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE);
2286 len = wpas_mbo_supp_op_class_ie(wpa_s, bss->freq,
2287 wpa_ie + wpa_ie_len,
2294 #endif /* CONFIG_MBO */
2297 * Workaround: Add Extended Capabilities element only if the AP
2298 * included this element in Beacon/Probe Response frames. Some older
2299 * APs seem to have interoperability issues if this element is
2300 * included, so while the standard may require us to include the
2301 * element in all cases, it is justifiable to skip it to avoid
2302 * interoperability issues.
2304 if (ssid->p2p_group)
2305 wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_CLIENT);
2307 wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION);
2309 if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) {
2312 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
2314 if (ext_capab_len > 0) {
2316 if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN)
2318 os_memmove(pos + ext_capab_len, pos,
2319 wpa_ie_len - (pos - wpa_ie));
2320 wpa_ie_len += ext_capab_len;
2321 os_memcpy(pos, ext_capab, ext_capab_len);
2326 if (is_hs20_network(wpa_s, ssid, bss)) {
2327 struct wpabuf *hs20;
2329 hs20 = wpabuf_alloc(20);
2331 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
2334 wpas_hs20_add_indication(hs20, pps_mo_id);
2335 len = sizeof(wpa_ie) - wpa_ie_len;
2336 if (wpabuf_len(hs20) <= len) {
2337 os_memcpy(wpa_ie + wpa_ie_len,
2338 wpabuf_head(hs20), wpabuf_len(hs20));
2339 wpa_ie_len += wpabuf_len(hs20);
2343 hs20_configure_frame_filters(wpa_s);
2346 #endif /* CONFIG_HS20 */
2348 if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
2349 struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
2352 len = sizeof(wpa_ie) - wpa_ie_len;
2353 if (wpabuf_len(buf) <= len) {
2354 os_memcpy(wpa_ie + wpa_ie_len,
2355 wpabuf_head(buf), wpabuf_len(buf));
2356 wpa_ie_len += wpabuf_len(buf);
2361 if (wpa_s->fst_ies) {
2362 int fst_ies_len = wpabuf_len(wpa_s->fst_ies);
2364 if (wpa_ie_len + fst_ies_len <= sizeof(wpa_ie)) {
2365 os_memcpy(wpa_ie + wpa_ie_len,
2366 wpabuf_head(wpa_s->fst_ies), fst_ies_len);
2367 wpa_ie_len += fst_ies_len;
2370 #endif /* CONFIG_FST */
2376 len = wpas_mbo_ie(wpa_s, wpa_ie + wpa_ie_len,
2377 sizeof(wpa_ie) - wpa_ie_len);
2381 #endif /* CONFIG_MBO */
2383 wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
2385 cipher_pairwise = wpa_s->pairwise_cipher;
2386 cipher_group = wpa_s->group_cipher;
2387 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2388 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2389 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE)
2391 if (wpa_set_wep_keys(wpa_s, ssid)) {
2396 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)
2399 #ifdef IEEE8021X_EAPOL
2400 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2401 if ((ssid->eapol_flags &
2402 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
2403 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 &&
2407 /* Assume that dynamic WEP-104 keys will be used and
2408 * set cipher suites in order for drivers to expect
2410 cipher_pairwise = cipher_group = WPA_CIPHER_WEP104;
2413 #endif /* IEEE8021X_EAPOL */
2415 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2416 /* Set the key before (and later after) association */
2417 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2420 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
2422 params.ssid = bss->ssid;
2423 params.ssid_len = bss->ssid_len;
2424 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2425 wpa_printf(MSG_DEBUG, "Limit connection to BSSID "
2426 MACSTR " freq=%u MHz based on scan results "
2428 MAC2STR(bss->bssid), bss->freq,
2430 params.bssid = bss->bssid;
2431 params.freq.freq = bss->freq;
2433 params.bssid_hint = bss->bssid;
2434 params.freq_hint = bss->freq;
2435 params.pbss = bss_is_pbss(bss);
2437 params.ssid = ssid->ssid;
2438 params.ssid_len = ssid->ssid_len;
2439 params.pbss = (ssid->pbss != 2) ? ssid->pbss : 0;
2442 if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set &&
2443 wpa_s->conf->ap_scan == 2) {
2444 params.bssid = ssid->bssid;
2445 params.fixed_bssid = 1;
2448 /* Initial frequency for IBSS/mesh */
2449 if ((ssid->mode == WPAS_MODE_IBSS || ssid->mode == WPAS_MODE_MESH) &&
2450 ssid->frequency > 0 && params.freq.freq == 0)
2451 ibss_mesh_setup_freq(wpa_s, ssid, ¶ms.freq);
2453 if (ssid->mode == WPAS_MODE_IBSS) {
2454 params.fixed_freq = ssid->fixed_freq;
2455 if (ssid->beacon_int)
2456 params.beacon_int = ssid->beacon_int;
2458 params.beacon_int = wpa_s->conf->beacon_int;
2461 params.wpa_ie = wpa_ie;
2462 params.wpa_ie_len = wpa_ie_len;
2463 params.pairwise_suite = cipher_pairwise;
2464 params.group_suite = cipher_group;
2465 params.key_mgmt_suite = wpa_s->key_mgmt;
2466 params.wpa_proto = wpa_s->wpa_proto;
2467 params.auth_alg = algs;
2468 params.mode = ssid->mode;
2469 params.bg_scan_period = ssid->bg_scan_period;
2470 for (i = 0; i < NUM_WEP_KEYS; i++) {
2471 if (ssid->wep_key_len[i])
2472 params.wep_key[i] = ssid->wep_key[i];
2473 params.wep_key_len[i] = ssid->wep_key_len[i];
2475 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
2477 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2478 (params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2479 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
2480 params.passphrase = ssid->passphrase;
2482 params.psk = ssid->psk;
2485 if (wpa_s->conf->key_mgmt_offload) {
2486 if (params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
2487 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
2488 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
2489 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
2490 params.req_key_mgmt_offload =
2491 ssid->proactive_key_caching < 0 ?
2492 wpa_s->conf->okc : ssid->proactive_key_caching;
2494 params.req_key_mgmt_offload = 1;
2496 if ((params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2497 params.key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
2498 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK) &&
2500 params.psk = ssid->psk;
2503 params.drop_unencrypted = use_crypt;
2505 #ifdef CONFIG_IEEE80211W
2506 params.mgmt_frame_protection = wpas_get_ssid_pmf(wpa_s, ssid);
2507 if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) {
2508 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
2509 struct wpa_ie_data ie;
2510 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 &&
2512 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
2513 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports "
2514 "MFP: require MFP");
2515 params.mgmt_frame_protection =
2516 MGMT_FRAME_PROTECTION_REQUIRED;
2519 #endif /* CONFIG_IEEE80211W */
2521 params.p2p = ssid->p2p_group;
2523 if (wpa_s->p2pdev->set_sta_uapsd)
2524 params.uapsd = wpa_s->p2pdev->sta_uapsd;
2528 #ifdef CONFIG_HT_OVERRIDES
2529 os_memset(&htcaps, 0, sizeof(htcaps));
2530 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
2531 params.htcaps = (u8 *) &htcaps;
2532 params.htcaps_mask = (u8 *) &htcaps_mask;
2533 wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms);
2534 #endif /* CONFIG_HT_OVERRIDES */
2535 #ifdef CONFIG_VHT_OVERRIDES
2536 os_memset(&vhtcaps, 0, sizeof(vhtcaps));
2537 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
2538 params.vhtcaps = &vhtcaps;
2539 params.vhtcaps_mask = &vhtcaps_mask;
2540 wpa_supplicant_apply_vht_overrides(wpa_s, ssid, ¶ms);
2541 #endif /* CONFIG_VHT_OVERRIDES */
2545 * If multi-channel concurrency is not supported, check for any
2546 * frequency conflict. In case of any frequency conflict, remove the
2547 * least prioritized connection.
2549 if (wpa_s->num_multichan_concurrent < 2) {
2551 num = get_shared_radio_freqs(wpa_s, &freq, 1);
2552 if (num > 0 && freq > 0 && freq != params.freq.freq) {
2553 wpa_printf(MSG_DEBUG,
2554 "Assoc conflicting freq found (%d != %d)",
2555 freq, params.freq.freq);
2556 if (wpas_p2p_handle_frequency_conflicts(
2557 wpa_s, params.freq.freq, ssid) < 0) {
2558 wpas_connect_work_done(wpa_s);
2563 #endif /* CONFIG_P2P */
2565 if (wpa_s->reassoc_same_ess && !is_zero_ether_addr(prev_bssid) &&
2566 wpa_s->current_ssid)
2567 params.prev_bssid = prev_bssid;
2569 ret = wpa_drv_associate(wpa_s, ¶ms);
2571 wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
2573 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) {
2575 * The driver is known to mean what is saying, so we
2576 * can stop right here; the association will not
2579 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
2580 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2581 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2584 /* try to continue anyway; new association will be tried again
2589 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2590 /* Set the key after the association just in case association
2591 * cleared the previously configured key. */
2592 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2593 /* No need to timeout authentication since there is no key
2595 wpa_supplicant_cancel_auth_timeout(wpa_s);
2596 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2597 #ifdef CONFIG_IBSS_RSN
2598 } else if (ssid->mode == WPAS_MODE_IBSS &&
2599 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2600 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
2602 * RSN IBSS authentication is per-STA and we can disable the
2603 * per-BSSID authentication.
2605 wpa_supplicant_cancel_auth_timeout(wpa_s);
2606 #endif /* CONFIG_IBSS_RSN */
2608 /* Timeout for IEEE 802.11 authentication and association */
2612 /* give IBSS a bit more time */
2613 timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5;
2614 } else if (wpa_s->conf->ap_scan == 1) {
2615 /* give IBSS a bit more time */
2616 timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10;
2618 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
2622 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) {
2623 /* Set static WEP keys again */
2624 wpa_set_wep_keys(wpa_s, ssid);
2627 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) {
2629 * Do not allow EAP session resumption between different
2630 * network configurations.
2632 eapol_sm_invalidate_cached_session(wpa_s->eapol);
2634 old_ssid = wpa_s->current_ssid;
2635 wpa_s->current_ssid = ssid;
2637 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2638 wpa_s->current_bss = bss;
2640 hs20_configure_frame_filters(wpa_s);
2641 #endif /* CONFIG_HS20 */
2644 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
2645 wpa_supplicant_initiate_eapol(wpa_s);
2646 if (old_ssid != wpa_s->current_ssid)
2647 wpas_notify_network_changed(wpa_s);
2651 static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s,
2654 struct wpa_ssid *old_ssid;
2656 wpas_connect_work_done(wpa_s);
2657 wpa_clear_keys(wpa_s, addr);
2658 old_ssid = wpa_s->current_ssid;
2659 wpa_supplicant_mark_disassoc(wpa_s);
2660 wpa_sm_set_config(wpa_s->wpa, NULL);
2661 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2662 if (old_ssid != wpa_s->current_ssid)
2663 wpas_notify_network_changed(wpa_s);
2664 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
2669 * wpa_supplicant_deauthenticate - Deauthenticate the current connection
2670 * @wpa_s: Pointer to wpa_supplicant data
2671 * @reason_code: IEEE 802.11 reason code for the deauthenticate frame
2673 * This function is used to request %wpa_supplicant to deauthenticate from the
2676 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
2680 union wpa_event_data event;
2683 wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR
2684 " pending_bssid=" MACSTR " reason=%d state=%s",
2685 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
2686 reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state));
2688 if (!is_zero_ether_addr(wpa_s->bssid))
2689 addr = wpa_s->bssid;
2690 else if (!is_zero_ether_addr(wpa_s->pending_bssid) &&
2691 (wpa_s->wpa_state == WPA_AUTHENTICATING ||
2692 wpa_s->wpa_state == WPA_ASSOCIATING))
2693 addr = wpa_s->pending_bssid;
2694 else if (wpa_s->wpa_state == WPA_ASSOCIATING) {
2696 * When using driver-based BSS selection, we may not know the
2697 * BSSID with which we are currently trying to associate. We
2698 * need to notify the driver of this disconnection even in such
2699 * a case, so use the all zeros address here.
2701 addr = wpa_s->bssid;
2706 wpa_tdls_teardown_peers(wpa_s->wpa);
2707 #endif /* CONFIG_TDLS */
2711 wpa_msg(wpa_s, MSG_INFO, MESH_GROUP_REMOVED "%s",
2713 wpa_supplicant_leave_mesh(wpa_s);
2715 #endif /* CONFIG_MESH */
2718 wpa_drv_deauthenticate(wpa_s, addr, reason_code);
2719 os_memset(&event, 0, sizeof(event));
2720 event.deauth_info.reason_code = (u16) reason_code;
2721 event.deauth_info.locally_generated = 1;
2722 wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event);
2727 wpa_supplicant_clear_connection(wpa_s, addr);
2730 static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s,
2731 struct wpa_ssid *ssid)
2733 if (!ssid || !ssid->disabled || ssid->disabled == 2)
2737 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2738 wpas_notify_network_enabled_changed(wpa_s, ssid);
2741 * Try to reassociate since there is no current configuration and a new
2742 * network was made available.
2744 if (!wpa_s->current_ssid && !wpa_s->disconnected)
2745 wpa_s->reassociate = 1;
2750 * wpa_supplicant_enable_network - Mark a configured network as enabled
2751 * @wpa_s: wpa_supplicant structure for a network interface
2752 * @ssid: wpa_ssid structure for a configured network or %NULL
2754 * Enables the specified network or all networks if no network specified.
2756 void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
2757 struct wpa_ssid *ssid)
2760 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
2761 wpa_supplicant_enable_one_network(wpa_s, ssid);
2763 wpa_supplicant_enable_one_network(wpa_s, ssid);
2765 if (wpa_s->reassociate && !wpa_s->disconnected &&
2766 (!wpa_s->current_ssid ||
2767 wpa_s->wpa_state == WPA_DISCONNECTED ||
2768 wpa_s->wpa_state == WPA_SCANNING)) {
2769 if (wpa_s->sched_scanning) {
2770 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add "
2771 "new network to scan filters");
2772 wpa_supplicant_cancel_sched_scan(wpa_s);
2775 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
2776 wpa_s->scan_req = NORMAL_SCAN_REQ;
2777 wpa_supplicant_req_scan(wpa_s, 0, 0);
2784 * wpa_supplicant_disable_network - Mark a configured network as disabled
2785 * @wpa_s: wpa_supplicant structure for a network interface
2786 * @ssid: wpa_ssid structure for a configured network or %NULL
2788 * Disables the specified network or all networks if no network specified.
2790 void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
2791 struct wpa_ssid *ssid)
2793 struct wpa_ssid *other_ssid;
2797 if (wpa_s->sched_scanning)
2798 wpa_supplicant_cancel_sched_scan(wpa_s);
2800 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2801 other_ssid = other_ssid->next) {
2802 was_disabled = other_ssid->disabled;
2803 if (was_disabled == 2)
2804 continue; /* do not change persistent P2P group
2807 other_ssid->disabled = 1;
2809 if (was_disabled != other_ssid->disabled)
2810 wpas_notify_network_enabled_changed(
2813 if (wpa_s->current_ssid)
2814 wpa_supplicant_deauthenticate(
2815 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2816 } else if (ssid->disabled != 2) {
2817 if (ssid == wpa_s->current_ssid)
2818 wpa_supplicant_deauthenticate(
2819 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2821 was_disabled = ssid->disabled;
2825 if (was_disabled != ssid->disabled) {
2826 wpas_notify_network_enabled_changed(wpa_s, ssid);
2827 if (wpa_s->sched_scanning) {
2828 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan "
2829 "to remove network from filters");
2830 wpa_supplicant_cancel_sched_scan(wpa_s);
2831 wpa_supplicant_req_scan(wpa_s, 0, 0);
2839 * wpa_supplicant_select_network - Attempt association with a network
2840 * @wpa_s: wpa_supplicant structure for a network interface
2841 * @ssid: wpa_ssid structure for a configured network or %NULL for any network
2843 void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
2844 struct wpa_ssid *ssid)
2847 struct wpa_ssid *other_ssid;
2848 int disconnected = 0;
2850 if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) {
2851 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2852 wpa_s->own_disconnect_req = 1;
2853 wpa_supplicant_deauthenticate(
2854 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2859 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2862 * Mark all other networks disabled or mark all networks enabled if no
2863 * network specified.
2865 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2866 other_ssid = other_ssid->next) {
2867 int was_disabled = other_ssid->disabled;
2868 if (was_disabled == 2)
2869 continue; /* do not change persistent P2P group data */
2871 other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0;
2872 if (was_disabled && !other_ssid->disabled)
2873 wpas_clear_temp_disabled(wpa_s, other_ssid, 0);
2875 if (was_disabled != other_ssid->disabled)
2876 wpas_notify_network_enabled_changed(wpa_s, other_ssid);
2879 if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid &&
2880 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2881 /* We are already associated with the selected network */
2882 wpa_printf(MSG_DEBUG, "Already associated with the "
2883 "selected network - do nothing");
2888 wpa_s->current_ssid = ssid;
2889 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2890 wpa_s->connect_without_scan =
2891 (ssid->mode == WPAS_MODE_MESH) ? ssid : NULL;
2894 * Don't optimize next scan freqs since a new ESS has been
2897 os_free(wpa_s->next_scan_freqs);
2898 wpa_s->next_scan_freqs = NULL;
2900 wpa_s->connect_without_scan = NULL;
2903 wpa_s->disconnected = 0;
2904 wpa_s->reassociate = 1;
2906 if (wpa_s->connect_without_scan ||
2907 wpa_supplicant_fast_associate(wpa_s) != 1) {
2908 wpa_s->scan_req = NORMAL_SCAN_REQ;
2909 wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0);
2913 wpas_notify_network_selected(wpa_s, ssid);
2918 * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path
2919 * @wpa_s: wpa_supplicant structure for a network interface
2920 * @pkcs11_engine_path: PKCS #11 engine path or NULL
2921 * @pkcs11_module_path: PKCS #11 module path or NULL
2922 * Returns: 0 on success; -1 on failure
2924 * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid
2925 * path. If resetting the EAPOL state machine with the new PKCS #11 engine and
2926 * module path fails the paths will be reset to the default value (NULL).
2928 int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant *wpa_s,
2929 const char *pkcs11_engine_path,
2930 const char *pkcs11_module_path)
2932 char *pkcs11_engine_path_copy = NULL;
2933 char *pkcs11_module_path_copy = NULL;
2935 if (pkcs11_engine_path != NULL) {
2936 pkcs11_engine_path_copy = os_strdup(pkcs11_engine_path);
2937 if (pkcs11_engine_path_copy == NULL)
2940 if (pkcs11_module_path != NULL) {
2941 pkcs11_module_path_copy = os_strdup(pkcs11_module_path);
2942 if (pkcs11_module_path_copy == NULL) {
2943 os_free(pkcs11_engine_path_copy);
2948 os_free(wpa_s->conf->pkcs11_engine_path);
2949 os_free(wpa_s->conf->pkcs11_module_path);
2950 wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path_copy;
2951 wpa_s->conf->pkcs11_module_path = pkcs11_module_path_copy;
2953 wpa_sm_set_eapol(wpa_s->wpa, NULL);
2954 eapol_sm_deinit(wpa_s->eapol);
2955 wpa_s->eapol = NULL;
2956 if (wpa_supplicant_init_eapol(wpa_s)) {
2957 /* Error -> Reset paths to the default value (NULL) once. */
2958 if (pkcs11_engine_path != NULL && pkcs11_module_path != NULL)
2959 wpas_set_pkcs11_engine_and_module_path(wpa_s, NULL,
2964 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
2971 * wpa_supplicant_set_ap_scan - Set AP scan mode for interface
2972 * @wpa_s: wpa_supplicant structure for a network interface
2973 * @ap_scan: AP scan mode
2974 * Returns: 0 if succeed or -1 if ap_scan has an invalid value
2977 int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan)
2982 if (ap_scan < 0 || ap_scan > 2)
2985 if (ap_scan == 2 && os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
2986 wpa_printf(MSG_INFO,
2987 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
2991 if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan &&
2992 wpa_s->wpa_state >= WPA_ASSOCIATING &&
2993 wpa_s->wpa_state < WPA_COMPLETED) {
2994 wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while "
2995 "associating", wpa_s->conf->ap_scan, ap_scan);
2998 #endif /* ANDROID */
3000 old_ap_scan = wpa_s->conf->ap_scan;
3001 wpa_s->conf->ap_scan = ap_scan;
3003 if (old_ap_scan != wpa_s->conf->ap_scan)
3004 wpas_notify_ap_scan_changed(wpa_s);
3011 * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age
3012 * @wpa_s: wpa_supplicant structure for a network interface
3013 * @expire_age: Expiration age in seconds
3014 * Returns: 0 if succeed or -1 if expire_age has an invalid value
3017 int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s,
3018 unsigned int bss_expire_age)
3020 if (bss_expire_age < 10) {
3021 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u",
3025 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec",
3027 wpa_s->conf->bss_expiration_age = bss_expire_age;
3034 * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count
3035 * @wpa_s: wpa_supplicant structure for a network interface
3036 * @expire_count: number of scans after which an unseen BSS is reclaimed
3037 * Returns: 0 if succeed or -1 if expire_count has an invalid value
3040 int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s,
3041 unsigned int bss_expire_count)
3043 if (bss_expire_count < 1) {
3044 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u",
3048 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u",
3050 wpa_s->conf->bss_expiration_scan_count = bss_expire_count;
3057 * wpa_supplicant_set_scan_interval - Set scan interval
3058 * @wpa_s: wpa_supplicant structure for a network interface
3059 * @scan_interval: scan interval in seconds
3060 * Returns: 0 if succeed or -1 if scan_interval has an invalid value
3063 int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s,
3066 if (scan_interval < 0) {
3067 wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d",
3071 wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec",
3073 wpa_supplicant_update_scan_int(wpa_s, scan_interval);
3080 * wpa_supplicant_set_debug_params - Set global debug params
3081 * @global: wpa_global structure
3082 * @debug_level: debug level
3083 * @debug_timestamp: determines if show timestamp in debug data
3084 * @debug_show_keys: determines if show keys in debug data
3085 * Returns: 0 if succeed or -1 if debug_level has wrong value
3087 int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level,
3088 int debug_timestamp, int debug_show_keys)
3091 int old_level, old_timestamp, old_show_keys;
3093 /* check for allowed debuglevels */
3094 if (debug_level != MSG_EXCESSIVE &&
3095 debug_level != MSG_MSGDUMP &&
3096 debug_level != MSG_DEBUG &&
3097 debug_level != MSG_INFO &&
3098 debug_level != MSG_WARNING &&
3099 debug_level != MSG_ERROR)
3102 old_level = wpa_debug_level;
3103 old_timestamp = wpa_debug_timestamp;
3104 old_show_keys = wpa_debug_show_keys;
3106 wpa_debug_level = debug_level;
3107 wpa_debug_timestamp = debug_timestamp ? 1 : 0;
3108 wpa_debug_show_keys = debug_show_keys ? 1 : 0;
3110 if (wpa_debug_level != old_level)
3111 wpas_notify_debug_level_changed(global);
3112 if (wpa_debug_timestamp != old_timestamp)
3113 wpas_notify_debug_timestamp_changed(global);
3114 if (wpa_debug_show_keys != old_show_keys)
3115 wpas_notify_debug_show_keys_changed(global);
3122 * wpa_supplicant_get_ssid - Get a pointer to the current network structure
3123 * @wpa_s: Pointer to wpa_supplicant data
3124 * Returns: A pointer to the current network structure or %NULL on failure
3126 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
3128 struct wpa_ssid *entry;
3129 u8 ssid[SSID_MAX_LEN];
3135 res = wpa_drv_get_ssid(wpa_s, ssid);
3137 wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from "
3143 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
3144 wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from "
3149 wired = wpa_s->conf->ap_scan == 0 &&
3150 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED);
3152 entry = wpa_s->conf->ssid;
3154 if (!wpas_network_disabled(wpa_s, entry) &&
3155 ((ssid_len == entry->ssid_len &&
3156 os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) &&
3157 (!entry->bssid_set ||
3158 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
3161 if (!wpas_network_disabled(wpa_s, entry) &&
3162 (entry->key_mgmt & WPA_KEY_MGMT_WPS) &&
3163 (entry->ssid == NULL || entry->ssid_len == 0) &&
3164 (!entry->bssid_set ||
3165 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
3167 #endif /* CONFIG_WPS */
3169 if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set &&
3170 entry->ssid_len == 0 &&
3171 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)
3174 entry = entry->next;
3181 static int select_driver(struct wpa_supplicant *wpa_s, int i)
3183 struct wpa_global *global = wpa_s->global;
3185 if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) {
3186 global->drv_priv[i] = wpa_drivers[i]->global_init(global);
3187 if (global->drv_priv[i] == NULL) {
3188 wpa_printf(MSG_ERROR, "Failed to initialize driver "
3189 "'%s'", wpa_drivers[i]->name);
3194 wpa_s->driver = wpa_drivers[i];
3195 wpa_s->global_drv_priv = global->drv_priv[i];
3201 static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s,
3206 const char *pos, *driver = name;
3211 if (wpa_drivers[0] == NULL) {
3212 wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into "
3218 /* default to first driver in the list */
3219 return select_driver(wpa_s, 0);
3223 pos = os_strchr(driver, ',');
3227 len = os_strlen(driver);
3229 for (i = 0; wpa_drivers[i]; i++) {
3230 if (os_strlen(wpa_drivers[i]->name) == len &&
3231 os_strncmp(driver, wpa_drivers[i]->name, len) ==
3233 /* First driver that succeeds wins */
3234 if (select_driver(wpa_s, i) == 0)
3242 wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name);
3248 * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant
3249 * @ctx: Context pointer (wpa_s); this is the ctx variable registered
3250 * with struct wpa_driver_ops::init()
3251 * @src_addr: Source address of the EAPOL frame
3252 * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header)
3253 * @len: Length of the EAPOL data
3255 * This function is called for each received EAPOL frame. Most driver
3256 * interfaces rely on more generic OS mechanism for receiving frames through
3257 * l2_packet, but if such a mechanism is not available, the driver wrapper may
3258 * take care of received EAPOL frames and deliver them to the core supplicant
3259 * code by calling this function.
3261 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
3262 const u8 *buf, size_t len)
3264 struct wpa_supplicant *wpa_s = ctx;
3266 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr));
3267 wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len);
3269 #ifdef CONFIG_PEERKEY
3270 if (wpa_s->wpa_state > WPA_ASSOCIATED && wpa_s->current_ssid &&
3271 wpa_s->current_ssid->peerkey &&
3272 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
3273 wpa_sm_rx_eapol_peerkey(wpa_s->wpa, src_addr, buf, len) == 1) {
3274 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: Processed PeerKey EAPOL-Key");
3277 #endif /* CONFIG_PEERKEY */
3279 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3280 (wpa_s->last_eapol_matches_bssid &&
3283 #endif /* CONFIG_AP */
3284 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) {
3286 * There is possible race condition between receiving the
3287 * association event and the EAPOL frame since they are coming
3288 * through different paths from the driver. In order to avoid
3289 * issues in trying to process the EAPOL frame before receiving
3290 * association information, lets queue it for processing until
3291 * the association event is received. This may also be needed in
3292 * driver-based roaming case, so also use src_addr != BSSID as a
3293 * trigger if we have previously confirmed that the
3294 * Authenticator uses BSSID as the src_addr (which is not the
3295 * case with wired IEEE 802.1X).
3297 wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing "
3298 "of received EAPOL frame (state=%s bssid=" MACSTR ")",
3299 wpa_supplicant_state_txt(wpa_s->wpa_state),
3300 MAC2STR(wpa_s->bssid));
3301 wpabuf_free(wpa_s->pending_eapol_rx);
3302 wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len);
3303 if (wpa_s->pending_eapol_rx) {
3304 os_get_reltime(&wpa_s->pending_eapol_rx_time);
3305 os_memcpy(wpa_s->pending_eapol_rx_src, src_addr,
3311 wpa_s->last_eapol_matches_bssid =
3312 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0;
3315 if (wpa_s->ap_iface) {
3316 wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len);
3319 #endif /* CONFIG_AP */
3321 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
3322 wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since "
3323 "no key management is configured");
3327 if (wpa_s->eapol_received == 0 &&
3328 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) ||
3329 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3330 wpa_s->wpa_state != WPA_COMPLETED) &&
3331 (wpa_s->current_ssid == NULL ||
3332 wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) {
3333 /* Timeout for completing IEEE 802.1X and WPA authentication */
3336 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3337 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA ||
3338 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
3339 /* Use longer timeout for IEEE 802.1X/EAP */
3344 if (wpa_s->current_ssid && wpa_s->current_bss &&
3345 (wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
3346 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
3348 * Use shorter timeout if going through WPS AP iteration
3349 * for PIN config method with an AP that does not
3350 * advertise Selected Registrar.
3352 struct wpabuf *wps_ie;
3354 wps_ie = wpa_bss_get_vendor_ie_multi(
3355 wpa_s->current_bss, WPS_IE_VENDOR_TYPE);
3357 !wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1))
3359 wpabuf_free(wps_ie);
3361 #endif /* CONFIG_WPS */
3363 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
3365 wpa_s->eapol_received++;
3367 if (wpa_s->countermeasures) {
3368 wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped "
3373 #ifdef CONFIG_IBSS_RSN
3374 if (wpa_s->current_ssid &&
3375 wpa_s->current_ssid->mode == WPAS_MODE_IBSS) {
3376 ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len);
3379 #endif /* CONFIG_IBSS_RSN */
3381 /* Source address of the incoming EAPOL frame could be compared to the
3382 * current BSSID. However, it is possible that a centralized
3383 * Authenticator could be using another MAC address than the BSSID of
3384 * an AP, so just allow any address to be used for now. The replies are
3385 * still sent to the current BSSID (if available), though. */
3387 os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN);
3388 if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) &&
3389 eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0)
3391 wpa_drv_poll(wpa_s);
3392 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
3393 wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len);
3394 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3396 * Set portValid = TRUE here since we are going to skip 4-way
3397 * handshake processing which would normally set portValid. We
3398 * need this to allow the EAPOL state machines to be completed
3399 * without going through EAPOL-Key handshake.
3401 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3406 int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s)
3408 if ((!wpa_s->p2p_mgmt ||
3409 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
3410 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) {
3411 l2_packet_deinit(wpa_s->l2);
3412 wpa_s->l2 = l2_packet_init(wpa_s->ifname,
3413 wpa_drv_get_mac_addr(wpa_s),
3415 wpa_supplicant_rx_eapol, wpa_s, 0);
3416 if (wpa_s->l2 == NULL)
3419 const u8 *addr = wpa_drv_get_mac_addr(wpa_s);
3421 os_memcpy(wpa_s->own_addr, addr, ETH_ALEN);
3424 if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) {
3425 wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address");
3429 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3435 static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr,
3436 const u8 *buf, size_t len)
3438 struct wpa_supplicant *wpa_s = ctx;
3439 const struct l2_ethhdr *eth;
3441 if (len < sizeof(*eth))
3443 eth = (const struct l2_ethhdr *) buf;
3445 if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 &&
3446 !(eth->h_dest[0] & 0x01)) {
3447 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3448 " (bridge - not for this interface - ignore)",
3449 MAC2STR(src_addr), MAC2STR(eth->h_dest));
3453 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3454 " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest));
3455 wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth),
3456 len - sizeof(*eth));
3461 * wpa_supplicant_driver_init - Initialize driver interface parameters
3462 * @wpa_s: Pointer to wpa_supplicant data
3463 * Returns: 0 on success, -1 on failure
3465 * This function is called to initialize driver interface parameters.
3466 * wpa_drv_init() must have been called before this function to initialize the
3469 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
3471 static int interface_count = 0;
3473 if (wpa_supplicant_update_mac_addr(wpa_s) < 0)
3476 wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR,
3477 MAC2STR(wpa_s->own_addr));
3478 os_memcpy(wpa_s->perm_addr, wpa_s->own_addr, ETH_ALEN);
3479 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3481 if (wpa_s->bridge_ifname[0]) {
3482 wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge "
3483 "interface '%s'", wpa_s->bridge_ifname);
3484 wpa_s->l2_br = l2_packet_init_bridge(
3485 wpa_s->bridge_ifname, wpa_s->ifname, wpa_s->own_addr,
3486 ETH_P_EAPOL, wpa_supplicant_rx_eapol_bridge, wpa_s, 1);
3487 if (wpa_s->l2_br == NULL) {
3488 wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet "
3489 "connection for the bridge interface '%s'",
3490 wpa_s->bridge_ifname);
3495 if (wpa_s->conf->ap_scan == 2 &&
3496 os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
3497 wpa_printf(MSG_INFO,
3498 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
3501 wpa_clear_keys(wpa_s, NULL);
3503 /* Make sure that TKIP countermeasures are not left enabled (could
3504 * happen if wpa_supplicant is killed during countermeasures. */
3505 wpa_drv_set_countermeasures(wpa_s, 0);
3507 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver");
3508 wpa_drv_flush_pmkid(wpa_s);
3510 wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
3511 wpa_s->prev_scan_wildcard = 0;
3513 if (wpa_supplicant_enabled_networks(wpa_s)) {
3514 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3515 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3516 interface_count = 0;
3519 if (!wpa_s->p2p_mgmt &&
3520 wpa_supplicant_delayed_sched_scan(wpa_s,
3521 interface_count % 3,
3523 wpa_supplicant_req_scan(wpa_s, interface_count % 3,
3525 #endif /* ANDROID */
3528 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
3534 static int wpa_supplicant_daemon(const char *pid_file)
3536 wpa_printf(MSG_DEBUG, "Daemonize..");
3537 return os_daemonize(pid_file);
3541 static struct wpa_supplicant *
3542 wpa_supplicant_alloc(struct wpa_supplicant *parent)
3544 struct wpa_supplicant *wpa_s;
3546 wpa_s = os_zalloc(sizeof(*wpa_s));
3549 wpa_s->scan_req = INITIAL_SCAN_REQ;
3550 wpa_s->scan_interval = 5;
3551 wpa_s->new_connection = 1;
3552 wpa_s->parent = parent ? parent : wpa_s;
3553 wpa_s->p2pdev = wpa_s->parent;
3554 wpa_s->sched_scanning = 0;
3556 dl_list_init(&wpa_s->bss_tmp_disallowed);
3562 #ifdef CONFIG_HT_OVERRIDES
3564 static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s,
3565 struct ieee80211_ht_capabilities *htcaps,
3566 struct ieee80211_ht_capabilities *htcaps_mask,
3569 /* parse ht_mcs into hex array */
3571 const char *tmp = ht_mcs;
3574 /* If ht_mcs is null, do not set anything */
3578 /* This is what we are setting in the kernel */
3579 os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN);
3581 wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs);
3583 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3585 long v = strtol(tmp, &end, 16);
3587 wpa_msg(wpa_s, MSG_DEBUG,
3588 "htcap value[%i]: %ld end: %p tmp: %p",
3593 htcaps->supported_mcs_set[i] = v;
3596 wpa_msg(wpa_s, MSG_ERROR,
3597 "Failed to parse ht-mcs: %s, error: %s\n",
3598 ht_mcs, strerror(errno));
3604 * If we were able to parse any values, then set mask for the MCS set.
3607 os_memset(&htcaps_mask->supported_mcs_set, 0xff,
3608 IEEE80211_HT_MCS_MASK_LEN - 1);
3609 /* skip the 3 reserved bits */
3610 htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] =
3618 static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s,
3619 struct ieee80211_ht_capabilities *htcaps,
3620 struct ieee80211_ht_capabilities *htcaps_mask,
3625 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled);
3630 msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE);
3631 htcaps_mask->ht_capabilities_info |= msk;
3633 htcaps->ht_capabilities_info &= msk;
3635 htcaps->ht_capabilities_info |= msk;
3641 static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s,
3642 struct ieee80211_ht_capabilities *htcaps,
3643 struct ieee80211_ht_capabilities *htcaps_mask,
3646 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor);
3651 if (factor < 0 || factor > 3) {
3652 wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. "
3653 "Must be 0-3 or -1", factor);
3657 htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */
3658 htcaps->a_mpdu_params &= ~0x3;
3659 htcaps->a_mpdu_params |= factor & 0x3;
3665 static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s,
3666 struct ieee80211_ht_capabilities *htcaps,
3667 struct ieee80211_ht_capabilities *htcaps_mask,
3670 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density);
3675 if (density < 0 || density > 7) {
3676 wpa_msg(wpa_s, MSG_ERROR,
3677 "ampdu_density: %d out of range. Must be 0-7 or -1.",
3682 htcaps_mask->a_mpdu_params |= 0x1C;
3683 htcaps->a_mpdu_params &= ~(0x1C);
3684 htcaps->a_mpdu_params |= (density << 2) & 0x1C;
3690 static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s,
3691 struct ieee80211_ht_capabilities *htcaps,
3692 struct ieee80211_ht_capabilities *htcaps_mask,
3695 /* Masking these out disables HT40 */
3696 le16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET |
3697 HT_CAP_INFO_SHORT_GI40MHZ);
3699 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled);
3702 htcaps->ht_capabilities_info &= ~msk;
3704 htcaps->ht_capabilities_info |= msk;
3706 htcaps_mask->ht_capabilities_info |= msk;
3712 static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s,
3713 struct ieee80211_ht_capabilities *htcaps,
3714 struct ieee80211_ht_capabilities *htcaps_mask,
3717 /* Masking these out disables SGI */
3718 le16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ |
3719 HT_CAP_INFO_SHORT_GI40MHZ);
3721 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled);
3724 htcaps->ht_capabilities_info &= ~msk;
3726 htcaps->ht_capabilities_info |= msk;
3728 htcaps_mask->ht_capabilities_info |= msk;
3734 static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s,
3735 struct ieee80211_ht_capabilities *htcaps,
3736 struct ieee80211_ht_capabilities *htcaps_mask,
3739 /* Masking these out disables LDPC */
3740 le16 msk = host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP);
3742 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ldpc: %d", disabled);
3745 htcaps->ht_capabilities_info &= ~msk;
3747 htcaps->ht_capabilities_info |= msk;
3749 htcaps_mask->ht_capabilities_info |= msk;
3755 void wpa_supplicant_apply_ht_overrides(
3756 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3757 struct wpa_driver_associate_params *params)
3759 struct ieee80211_ht_capabilities *htcaps;
3760 struct ieee80211_ht_capabilities *htcaps_mask;
3765 params->disable_ht = ssid->disable_ht;
3766 if (!params->htcaps || !params->htcaps_mask)
3769 htcaps = (struct ieee80211_ht_capabilities *) params->htcaps;
3770 htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask;
3771 wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs);
3772 wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask,
3773 ssid->disable_max_amsdu);
3774 wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor);
3775 wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density);
3776 wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40);
3777 wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi);
3778 wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc);
3780 if (ssid->ht40_intolerant) {
3781 le16 bit = host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT);
3782 htcaps->ht_capabilities_info |= bit;
3783 htcaps_mask->ht_capabilities_info |= bit;
3787 #endif /* CONFIG_HT_OVERRIDES */
3790 #ifdef CONFIG_VHT_OVERRIDES
3791 void wpa_supplicant_apply_vht_overrides(
3792 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3793 struct wpa_driver_associate_params *params)
3795 struct ieee80211_vht_capabilities *vhtcaps;
3796 struct ieee80211_vht_capabilities *vhtcaps_mask;
3801 params->disable_vht = ssid->disable_vht;
3803 vhtcaps = (void *) params->vhtcaps;
3804 vhtcaps_mask = (void *) params->vhtcaps_mask;
3806 if (!vhtcaps || !vhtcaps_mask)
3809 vhtcaps->vht_capabilities_info = ssid->vht_capa;
3810 vhtcaps_mask->vht_capabilities_info = ssid->vht_capa_mask;
3812 #ifdef CONFIG_HT_OVERRIDES
3813 /* if max ampdu is <= 3, we have to make the HT cap the same */
3814 if (ssid->vht_capa_mask & VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) {
3817 max_ampdu = (ssid->vht_capa &
3818 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) >>
3819 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX_SHIFT;
3821 max_ampdu = max_ampdu < 3 ? max_ampdu : 3;
3822 wpa_set_ampdu_factor(wpa_s,
3823 (void *) params->htcaps,
3824 (void *) params->htcaps_mask,
3827 #endif /* CONFIG_HT_OVERRIDES */
3829 #define OVERRIDE_MCS(i) \
3830 if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \
3831 vhtcaps_mask->vht_supported_mcs_set.tx_map |= \
3833 vhtcaps->vht_supported_mcs_set.tx_map |= \
3834 ssid->vht_tx_mcs_nss_ ##i << 2 * (i - 1); \
3836 if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \
3837 vhtcaps_mask->vht_supported_mcs_set.rx_map |= \
3839 vhtcaps->vht_supported_mcs_set.rx_map |= \
3840 ssid->vht_rx_mcs_nss_ ##i << 2 * (i - 1); \
3852 #endif /* CONFIG_VHT_OVERRIDES */
3855 static int pcsc_reader_init(struct wpa_supplicant *wpa_s)
3860 if (!wpa_s->conf->pcsc_reader)
3863 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
3867 if (wpa_s->conf->pcsc_pin &&
3868 scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) {
3869 scard_deinit(wpa_s->scard);
3870 wpa_s->scard = NULL;
3871 wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed");
3875 len = sizeof(wpa_s->imsi) - 1;
3876 if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) {
3877 scard_deinit(wpa_s->scard);
3878 wpa_s->scard = NULL;
3879 wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI");
3882 wpa_s->imsi[len] = '\0';
3884 wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard);
3886 wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)",
3887 wpa_s->imsi, wpa_s->mnc_len);
3889 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
3890 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
3891 #endif /* PCSC_FUNCS */
3897 int wpas_init_ext_pw(struct wpa_supplicant *wpa_s)
3901 ext_password_deinit(wpa_s->ext_pw);
3902 wpa_s->ext_pw = NULL;
3903 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL);
3905 if (!wpa_s->conf->ext_password_backend)
3908 val = os_strdup(wpa_s->conf->ext_password_backend);
3911 pos = os_strchr(val, ':');
3915 wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val);
3917 wpa_s->ext_pw = ext_password_init(val, pos);
3919 if (wpa_s->ext_pw == NULL) {
3920 wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend");
3923 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw);
3931 static const u8 * wpas_fst_get_bssid_cb(void *ctx)
3933 struct wpa_supplicant *wpa_s = ctx;
3935 return (is_zero_ether_addr(wpa_s->bssid) ||
3936 wpa_s->wpa_state != WPA_COMPLETED) ? NULL : wpa_s->bssid;
3940 static void wpas_fst_get_channel_info_cb(void *ctx,
3941 enum hostapd_hw_mode *hw_mode,
3944 struct wpa_supplicant *wpa_s = ctx;
3946 if (wpa_s->current_bss) {
3947 *hw_mode = ieee80211_freq_to_chan(wpa_s->current_bss->freq,
3949 } else if (wpa_s->hw.num_modes) {
3950 *hw_mode = wpa_s->hw.modes[0].mode;
3958 static int wpas_fst_get_hw_modes(void *ctx, struct hostapd_hw_modes **modes)
3960 struct wpa_supplicant *wpa_s = ctx;
3962 *modes = wpa_s->hw.modes;
3963 return wpa_s->hw.num_modes;
3967 static void wpas_fst_set_ies_cb(void *ctx, const struct wpabuf *fst_ies)
3969 struct wpa_supplicant *wpa_s = ctx;
3971 wpa_hexdump_buf(MSG_DEBUG, "FST: Set IEs", fst_ies);
3972 wpa_s->fst_ies = fst_ies;
3976 static int wpas_fst_send_action_cb(void *ctx, const u8 *da, struct wpabuf *data)
3978 struct wpa_supplicant *wpa_s = ctx;
3980 WPA_ASSERT(os_memcmp(wpa_s->bssid, da, ETH_ALEN) == 0);
3981 return wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
3982 wpa_s->own_addr, wpa_s->bssid,
3983 wpabuf_head(data), wpabuf_len(data),
3988 static const struct wpabuf * wpas_fst_get_mb_ie_cb(void *ctx, const u8 *addr)
3990 struct wpa_supplicant *wpa_s = ctx;
3992 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
3993 return wpa_s->received_mb_ies;
3997 static void wpas_fst_update_mb_ie_cb(void *ctx, const u8 *addr,
3998 const u8 *buf, size_t size)
4000 struct wpa_supplicant *wpa_s = ctx;
4001 struct mb_ies_info info;
4003 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
4005 if (!mb_ies_info_by_ies(&info, buf, size)) {
4006 wpabuf_free(wpa_s->received_mb_ies);
4007 wpa_s->received_mb_ies = mb_ies_by_info(&info);
4012 static const u8 * wpas_fst_get_peer_first(void *ctx,
4013 struct fst_get_peer_ctx **get_ctx,
4016 struct wpa_supplicant *wpa_s = ctx;
4019 if (!is_zero_ether_addr(wpa_s->bssid))
4020 return (wpa_s->received_mb_ies || !mb_only) ?
4021 wpa_s->bssid : NULL;
4026 static const u8 * wpas_fst_get_peer_next(void *ctx,
4027 struct fst_get_peer_ctx **get_ctx,
4033 void fst_wpa_supplicant_fill_iface_obj(struct wpa_supplicant *wpa_s,
4034 struct fst_wpa_obj *iface_obj)
4036 iface_obj->ctx = wpa_s;
4037 iface_obj->get_bssid = wpas_fst_get_bssid_cb;
4038 iface_obj->get_channel_info = wpas_fst_get_channel_info_cb;
4039 iface_obj->get_hw_modes = wpas_fst_get_hw_modes;
4040 iface_obj->set_ies = wpas_fst_set_ies_cb;
4041 iface_obj->send_action = wpas_fst_send_action_cb;
4042 iface_obj->get_mb_ie = wpas_fst_get_mb_ie_cb;
4043 iface_obj->update_mb_ie = wpas_fst_update_mb_ie_cb;
4044 iface_obj->get_peer_first = wpas_fst_get_peer_first;
4045 iface_obj->get_peer_next = wpas_fst_get_peer_next;
4047 #endif /* CONFIG_FST */
4049 static int wpas_set_wowlan_triggers(struct wpa_supplicant *wpa_s,
4050 const struct wpa_driver_capa *capa)
4052 struct wowlan_triggers *triggers;
4055 if (!wpa_s->conf->wowlan_triggers)
4058 triggers = wpa_get_wowlan_triggers(wpa_s->conf->wowlan_triggers, capa);
4060 ret = wpa_drv_wowlan(wpa_s, triggers);
4067 enum wpa_radio_work_band wpas_freq_to_band(int freq)
4070 return BAND_2_4_GHZ;
4077 unsigned int wpas_get_bands(struct wpa_supplicant *wpa_s, const int *freqs)
4080 unsigned int band = 0;
4083 /* freqs are specified for the radio work */
4084 for (i = 0; freqs[i]; i++)
4085 band |= wpas_freq_to_band(freqs[i]);
4088 * freqs are not specified, implies all
4089 * the supported freqs by HW
4091 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4092 if (wpa_s->hw.modes[i].num_channels != 0) {
4093 if (wpa_s->hw.modes[i].mode ==
4094 HOSTAPD_MODE_IEEE80211B ||
4095 wpa_s->hw.modes[i].mode ==
4096 HOSTAPD_MODE_IEEE80211G)
4097 band |= BAND_2_4_GHZ;
4098 else if (wpa_s->hw.modes[i].mode ==
4099 HOSTAPD_MODE_IEEE80211A)
4101 else if (wpa_s->hw.modes[i].mode ==
4102 HOSTAPD_MODE_IEEE80211AD)
4103 band |= BAND_60_GHZ;
4104 else if (wpa_s->hw.modes[i].mode ==
4105 HOSTAPD_MODE_IEEE80211ANY)
4106 band = BAND_2_4_GHZ | BAND_5_GHZ |
4116 static struct wpa_radio * radio_add_interface(struct wpa_supplicant *wpa_s,
4119 struct wpa_supplicant *iface = wpa_s->global->ifaces;
4120 struct wpa_radio *radio;
4122 while (rn && iface) {
4123 radio = iface->radio;
4124 if (radio && os_strcmp(rn, radio->name) == 0) {
4125 wpa_printf(MSG_DEBUG, "Add interface %s to existing radio %s",
4127 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
4131 iface = iface->next;
4134 wpa_printf(MSG_DEBUG, "Add interface %s to a new radio %s",
4135 wpa_s->ifname, rn ? rn : "N/A");
4136 radio = os_zalloc(sizeof(*radio));
4141 os_strlcpy(radio->name, rn, sizeof(radio->name));
4142 dl_list_init(&radio->ifaces);
4143 dl_list_init(&radio->work);
4144 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
4150 static void radio_work_free(struct wpa_radio_work *work)
4152 if (work->wpa_s->scan_work == work) {
4153 /* This should not really happen. */
4154 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work",
4155 work->type, work, work->started);
4156 work->wpa_s->scan_work = NULL;
4160 if (work->wpa_s->p2p_scan_work == work) {
4161 /* This should not really happen. */
4162 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work",
4163 work->type, work, work->started);
4164 work->wpa_s->p2p_scan_work = NULL;
4166 #endif /* CONFIG_P2P */
4168 if (work->started) {
4169 work->wpa_s->radio->num_active_works--;
4170 wpa_dbg(work->wpa_s, MSG_DEBUG,
4171 "radio_work_free('%s'@%p: num_active_works --> %u",
4173 work->wpa_s->radio->num_active_works);
4176 dl_list_del(&work->list);
4181 static struct wpa_radio_work * radio_work_get_next_work(struct wpa_radio *radio)
4183 struct wpa_radio_work *active_work = NULL;
4184 struct wpa_radio_work *tmp;
4186 /* Get the active work to know the type and band. */
4187 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) {
4195 /* No active work, start one */
4196 radio->num_active_works = 0;
4197 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work,
4199 if (os_strcmp(tmp->type, "scan") == 0 &&
4200 radio->external_scan_running &&
4201 (((struct wpa_driver_scan_params *)
4202 tmp->ctx)->only_new_results ||
4203 tmp->wpa_s->clear_driver_scan_cache))
4210 if (os_strcmp(active_work->type, "sme-connect") == 0 ||
4211 os_strcmp(active_work->type, "connect") == 0) {
4213 * If the active work is either connect or sme-connect,
4214 * do not parallelize them with other radio works.
4216 wpa_dbg(active_work->wpa_s, MSG_DEBUG,
4217 "Do not parallelize radio work with %s",
4222 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) {
4227 * If connect or sme-connect are enqueued, parallelize only
4228 * those operations ahead of them in the queue.
4230 if (os_strcmp(tmp->type, "connect") == 0 ||
4231 os_strcmp(tmp->type, "sme-connect") == 0)
4235 * Check that the radio works are distinct and
4236 * on different bands.
4238 if (os_strcmp(active_work->type, tmp->type) != 0 &&
4239 (active_work->bands != tmp->bands)) {
4241 * If a scan has to be scheduled through nl80211 scan
4242 * interface and if an external scan is already running,
4243 * do not schedule the scan since it is likely to get
4244 * rejected by kernel.
4246 if (os_strcmp(tmp->type, "scan") == 0 &&
4247 radio->external_scan_running &&
4248 (((struct wpa_driver_scan_params *)
4249 tmp->ctx)->only_new_results ||
4250 tmp->wpa_s->clear_driver_scan_cache))
4253 wpa_dbg(active_work->wpa_s, MSG_DEBUG,
4254 "active_work:%s new_work:%s",
4255 active_work->type, tmp->type);
4260 /* Did not find a radio work to schedule in parallel. */
4265 static void radio_start_next_work(void *eloop_ctx, void *timeout_ctx)
4267 struct wpa_radio *radio = eloop_ctx;
4268 struct wpa_radio_work *work;
4269 struct os_reltime now, diff;
4270 struct wpa_supplicant *wpa_s;
4272 work = dl_list_first(&radio->work, struct wpa_radio_work, list);
4274 radio->num_active_works = 0;
4278 wpa_s = dl_list_first(&radio->ifaces, struct wpa_supplicant,
4282 wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)) {
4284 return; /* already started and still in progress */
4286 if (wpa_s && wpa_s->radio->external_scan_running) {
4287 wpa_printf(MSG_DEBUG, "Delay radio work start until externally triggered scan completes");
4292 if (radio->num_active_works < MAX_ACTIVE_WORKS) {
4293 /* get the work to schedule next */
4294 work = radio_work_get_next_work(radio);
4300 wpa_s = work->wpa_s;
4301 os_get_reltime(&now);
4302 os_reltime_sub(&now, &work->time, &diff);
4303 wpa_dbg(wpa_s, MSG_DEBUG,
4304 "Starting radio work '%s'@%p after %ld.%06ld second wait",
4305 work->type, work, diff.sec, diff.usec);
4308 radio->num_active_works++;
4312 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS) &&
4313 radio->num_active_works < MAX_ACTIVE_WORKS)
4314 radio_work_check_next(wpa_s);
4319 * This function removes both started and pending radio works running on
4320 * the provided interface's radio.
4321 * Prior to the removal of the radio work, its callback (cb) is called with
4322 * deinit set to be 1. Each work's callback is responsible for clearing its
4323 * internal data and restoring to a correct state.
4324 * @wpa_s: wpa_supplicant data
4325 * @type: type of works to be removed
4326 * @remove_all: 1 to remove all the works on this radio, 0 to remove only
4327 * this interface's works.
4329 void radio_remove_works(struct wpa_supplicant *wpa_s,
4330 const char *type, int remove_all)
4332 struct wpa_radio_work *work, *tmp;
4333 struct wpa_radio *radio = wpa_s->radio;
4335 dl_list_for_each_safe(work, tmp, &radio->work, struct wpa_radio_work,
4337 if (type && os_strcmp(type, work->type) != 0)
4340 /* skip other ifaces' works */
4341 if (!remove_all && work->wpa_s != wpa_s)
4344 wpa_dbg(wpa_s, MSG_DEBUG, "Remove radio work '%s'@%p%s",
4345 work->type, work, work->started ? " (started)" : "");
4347 radio_work_free(work);
4350 /* in case we removed the started work */
4351 radio_work_check_next(wpa_s);
4355 static void radio_remove_interface(struct wpa_supplicant *wpa_s)
4357 struct wpa_radio *radio = wpa_s->radio;
4362 wpa_printf(MSG_DEBUG, "Remove interface %s from radio %s",
4363 wpa_s->ifname, radio->name);
4364 dl_list_del(&wpa_s->radio_list);
4365 radio_remove_works(wpa_s, NULL, 0);
4366 wpa_s->radio = NULL;
4367 if (!dl_list_empty(&radio->ifaces))
4368 return; /* Interfaces remain for this radio */
4370 wpa_printf(MSG_DEBUG, "Remove radio %s", radio->name);
4371 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4376 void radio_work_check_next(struct wpa_supplicant *wpa_s)
4378 struct wpa_radio *radio = wpa_s->radio;
4380 if (dl_list_empty(&radio->work))
4382 if (wpa_s->ext_work_in_progress) {
4383 wpa_printf(MSG_DEBUG,
4384 "External radio work in progress - delay start of pending item");
4387 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4388 eloop_register_timeout(0, 0, radio_start_next_work, radio, NULL);
4393 * radio_add_work - Add a radio work item
4394 * @wpa_s: Pointer to wpa_supplicant data
4395 * @freq: Frequency of the offchannel operation in MHz or 0
4396 * @type: Unique identifier for each type of work
4397 * @next: Force as the next work to be executed
4398 * @cb: Callback function for indicating when radio is available
4399 * @ctx: Context pointer for the work (work->ctx in cb())
4400 * Returns: 0 on success, -1 on failure
4402 * This function is used to request time for an operation that requires
4403 * exclusive radio control. Once the radio is available, the registered callback
4404 * function will be called. radio_work_done() must be called once the exclusive
4405 * radio operation has been completed, so that the radio is freed for other
4406 * operations. The special case of deinit=1 is used to free the context data
4407 * during interface removal. That does not allow the callback function to start
4408 * the radio operation, i.e., it must free any resources allocated for the radio
4411 * The @freq parameter can be used to indicate a single channel on which the
4412 * offchannel operation will occur. This may allow multiple radio work
4413 * operations to be performed in parallel if they apply for the same channel.
4414 * Setting this to 0 indicates that the work item may use multiple channels or
4415 * requires exclusive control of the radio.
4417 int radio_add_work(struct wpa_supplicant *wpa_s, unsigned int freq,
4418 const char *type, int next,
4419 void (*cb)(struct wpa_radio_work *work, int deinit),
4422 struct wpa_radio *radio = wpa_s->radio;
4423 struct wpa_radio_work *work;
4426 work = os_zalloc(sizeof(*work));
4429 wpa_dbg(wpa_s, MSG_DEBUG, "Add radio work '%s'@%p", type, work);
4430 os_get_reltime(&work->time);
4433 work->wpa_s = wpa_s;
4438 work->bands = wpas_freq_to_band(freq);
4439 else if (os_strcmp(type, "scan") == 0 ||
4440 os_strcmp(type, "p2p-scan") == 0)
4441 work->bands = wpas_get_bands(wpa_s,
4442 ((struct wpa_driver_scan_params *)
4445 work->bands = wpas_get_bands(wpa_s, NULL);
4447 was_empty = dl_list_empty(&wpa_s->radio->work);
4449 dl_list_add(&wpa_s->radio->work, &work->list);
4451 dl_list_add_tail(&wpa_s->radio->work, &work->list);
4453 wpa_dbg(wpa_s, MSG_DEBUG, "First radio work item in the queue - schedule start immediately");
4454 radio_work_check_next(wpa_s);
4455 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)
4456 && radio->num_active_works < MAX_ACTIVE_WORKS) {
4457 wpa_dbg(wpa_s, MSG_DEBUG,
4458 "Try to schedule a radio work (num_active_works=%u)",
4459 radio->num_active_works);
4460 radio_work_check_next(wpa_s);
4468 * radio_work_done - Indicate that a radio work item has been completed
4469 * @work: Completed work
4471 * This function is called once the callback function registered with
4472 * radio_add_work() has completed its work.
4474 void radio_work_done(struct wpa_radio_work *work)
4476 struct wpa_supplicant *wpa_s = work->wpa_s;
4477 struct os_reltime now, diff;
4478 unsigned int started = work->started;
4480 os_get_reltime(&now);
4481 os_reltime_sub(&now, &work->time, &diff);
4482 wpa_dbg(wpa_s, MSG_DEBUG, "Radio work '%s'@%p %s in %ld.%06ld seconds",
4483 work->type, work, started ? "done" : "canceled",
4484 diff.sec, diff.usec);
4485 radio_work_free(work);
4487 radio_work_check_next(wpa_s);
4491 struct wpa_radio_work *
4492 radio_work_pending(struct wpa_supplicant *wpa_s, const char *type)
4494 struct wpa_radio_work *work;
4495 struct wpa_radio *radio = wpa_s->radio;
4497 dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) {
4498 if (work->wpa_s == wpa_s && os_strcmp(work->type, type) == 0)
4506 static int wpas_init_driver(struct wpa_supplicant *wpa_s,
4507 struct wpa_interface *iface)
4509 const char *ifname, *driver, *rn;
4511 driver = iface->driver;
4513 if (wpa_supplicant_set_driver(wpa_s, driver) < 0)
4516 wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname);
4517 if (wpa_s->drv_priv == NULL) {
4519 pos = driver ? os_strchr(driver, ',') : NULL;
4521 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
4522 "driver interface - try next driver wrapper");
4526 wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver "
4530 if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) {
4531 wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected "
4532 "driver_param '%s'", wpa_s->conf->driver_param);
4536 ifname = wpa_drv_get_ifname(wpa_s);
4537 if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) {
4538 wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced "
4539 "interface name with '%s'", ifname);
4540 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
4543 rn = wpa_driver_get_radio_name(wpa_s);
4544 if (rn && rn[0] == '\0')
4547 wpa_s->radio = radio_add_interface(wpa_s, rn);
4548 if (wpa_s->radio == NULL)
4555 static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
4556 struct wpa_interface *iface)
4558 struct wpa_driver_capa capa;
4561 wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver "
4562 "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname,
4563 iface->confname ? iface->confname : "N/A",
4564 iface->driver ? iface->driver : "default",
4565 iface->ctrl_interface ? iface->ctrl_interface : "N/A",
4566 iface->bridge_ifname ? iface->bridge_ifname : "N/A");
4568 if (iface->confname) {
4569 #ifdef CONFIG_BACKEND_FILE
4570 wpa_s->confname = os_rel2abs_path(iface->confname);
4571 if (wpa_s->confname == NULL) {
4572 wpa_printf(MSG_ERROR, "Failed to get absolute path "
4573 "for configuration file '%s'.",
4577 wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'",
4578 iface->confname, wpa_s->confname);
4579 #else /* CONFIG_BACKEND_FILE */
4580 wpa_s->confname = os_strdup(iface->confname);
4581 #endif /* CONFIG_BACKEND_FILE */
4582 wpa_s->conf = wpa_config_read(wpa_s->confname, NULL);
4583 if (wpa_s->conf == NULL) {
4584 wpa_printf(MSG_ERROR, "Failed to read or parse "
4585 "configuration '%s'.", wpa_s->confname);
4588 wpa_s->confanother = os_rel2abs_path(iface->confanother);
4589 wpa_config_read(wpa_s->confanother, wpa_s->conf);
4592 * Override ctrl_interface and driver_param if set on command
4595 if (iface->ctrl_interface) {
4596 os_free(wpa_s->conf->ctrl_interface);
4597 wpa_s->conf->ctrl_interface =
4598 os_strdup(iface->ctrl_interface);
4601 if (iface->driver_param) {
4602 os_free(wpa_s->conf->driver_param);
4603 wpa_s->conf->driver_param =
4604 os_strdup(iface->driver_param);
4607 if (iface->p2p_mgmt && !iface->ctrl_interface) {
4608 os_free(wpa_s->conf->ctrl_interface);
4609 wpa_s->conf->ctrl_interface = NULL;
4612 wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface,
4613 iface->driver_param);
4615 if (wpa_s->conf == NULL) {
4616 wpa_printf(MSG_ERROR, "\nNo configuration found.");
4620 if (iface->ifname == NULL) {
4621 wpa_printf(MSG_ERROR, "\nInterface name is required.");
4624 if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) {
4625 wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.",
4629 os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname));
4631 if (iface->bridge_ifname) {
4632 if (os_strlen(iface->bridge_ifname) >=
4633 sizeof(wpa_s->bridge_ifname)) {
4634 wpa_printf(MSG_ERROR, "\nToo long bridge interface "
4635 "name '%s'.", iface->bridge_ifname);
4638 os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname,
4639 sizeof(wpa_s->bridge_ifname));
4642 /* RSNA Supplicant Key Management - INITIALIZE */
4643 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
4644 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
4646 /* Initialize driver interface and register driver event handler before
4647 * L2 receive handler so that association events are processed before
4648 * EAPOL-Key packets if both become available for the same select()
4650 if (wpas_init_driver(wpa_s, iface) < 0)
4653 if (wpa_supplicant_init_wpa(wpa_s) < 0)
4656 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname,
4657 wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname :
4659 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
4661 if (wpa_s->conf->dot11RSNAConfigPMKLifetime &&
4662 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
4663 wpa_s->conf->dot11RSNAConfigPMKLifetime)) {
4664 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4665 "dot11RSNAConfigPMKLifetime");
4669 if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold &&
4670 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
4671 wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) {
4672 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4673 "dot11RSNAConfigPMKReauthThreshold");
4677 if (wpa_s->conf->dot11RSNAConfigSATimeout &&
4678 wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT,
4679 wpa_s->conf->dot11RSNAConfigSATimeout)) {
4680 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4681 "dot11RSNAConfigSATimeout");
4685 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s,
4686 &wpa_s->hw.num_modes,
4688 if (wpa_s->hw.modes) {
4691 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4692 if (wpa_s->hw.modes[i].vht_capab) {
4693 wpa_s->hw_capab = CAPAB_VHT;
4697 if (wpa_s->hw.modes[i].ht_capab &
4698 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)
4699 wpa_s->hw_capab = CAPAB_HT40;
4700 else if (wpa_s->hw.modes[i].ht_capab &&
4701 wpa_s->hw_capab == CAPAB_NO_HT_VHT)
4702 wpa_s->hw_capab = CAPAB_HT;
4706 capa_res = wpa_drv_get_capa(wpa_s, &capa);
4707 if (capa_res == 0) {
4708 wpa_s->drv_capa_known = 1;
4709 wpa_s->drv_flags = capa.flags;
4710 wpa_s->drv_enc = capa.enc;
4711 wpa_s->drv_smps_modes = capa.smps_modes;
4712 wpa_s->drv_rrm_flags = capa.rrm_flags;
4713 wpa_s->probe_resp_offloads = capa.probe_resp_offloads;
4714 wpa_s->max_scan_ssids = capa.max_scan_ssids;
4715 wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids;
4716 wpa_s->max_sched_scan_plans = capa.max_sched_scan_plans;
4717 wpa_s->max_sched_scan_plan_interval =
4718 capa.max_sched_scan_plan_interval;
4719 wpa_s->max_sched_scan_plan_iterations =
4720 capa.max_sched_scan_plan_iterations;
4721 wpa_s->sched_scan_supported = capa.sched_scan_supported;
4722 wpa_s->max_match_sets = capa.max_match_sets;
4723 wpa_s->max_remain_on_chan = capa.max_remain_on_chan;
4724 wpa_s->max_stations = capa.max_stations;
4725 wpa_s->extended_capa = capa.extended_capa;
4726 wpa_s->extended_capa_mask = capa.extended_capa_mask;
4727 wpa_s->extended_capa_len = capa.extended_capa_len;
4728 wpa_s->num_multichan_concurrent =
4729 capa.num_multichan_concurrent;
4730 wpa_s->wmm_ac_supported = capa.wmm_ac_supported;
4732 if (capa.mac_addr_rand_scan_supported)
4733 wpa_s->mac_addr_rand_supported |= MAC_ADDR_RAND_SCAN;
4734 if (wpa_s->sched_scan_supported &&
4735 capa.mac_addr_rand_sched_scan_supported)
4736 wpa_s->mac_addr_rand_supported |=
4737 (MAC_ADDR_RAND_SCHED_SCAN | MAC_ADDR_RAND_PNO);
4739 if (wpa_s->max_remain_on_chan == 0)
4740 wpa_s->max_remain_on_chan = 1000;
4743 * Only take p2p_mgmt parameters when P2P Device is supported.
4744 * Doing it here as it determines whether l2_packet_init() will be done
4745 * during wpa_supplicant_driver_init().
4747 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
4748 wpa_s->p2p_mgmt = iface->p2p_mgmt;
4750 iface->p2p_mgmt = 1;
4752 if (wpa_s->num_multichan_concurrent == 0)
4753 wpa_s->num_multichan_concurrent = 1;
4755 if (wpa_supplicant_driver_init(wpa_s) < 0)
4759 if ((!iface->p2p_mgmt ||
4760 !(wpa_s->drv_flags &
4761 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
4762 wpa_tdls_init(wpa_s->wpa))
4764 #endif /* CONFIG_TDLS */
4766 if (wpa_s->conf->country[0] && wpa_s->conf->country[1] &&
4767 wpa_drv_set_country(wpa_s, wpa_s->conf->country)) {
4768 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country");
4773 if (wpa_s->conf->fst_group_id) {
4774 struct fst_iface_cfg cfg;
4775 struct fst_wpa_obj iface_obj;
4777 fst_wpa_supplicant_fill_iface_obj(wpa_s, &iface_obj);
4778 os_strlcpy(cfg.group_id, wpa_s->conf->fst_group_id,
4779 sizeof(cfg.group_id));
4780 cfg.priority = wpa_s->conf->fst_priority;
4781 cfg.llt = wpa_s->conf->fst_llt;
4783 wpa_s->fst = fst_attach(wpa_s->ifname, wpa_s->own_addr,
4786 wpa_msg(wpa_s, MSG_ERROR,
4787 "FST: Cannot attach iface %s to group %s",
4788 wpa_s->ifname, cfg.group_id);
4792 #endif /* CONFIG_FST */
4794 if (wpas_wps_init(wpa_s))
4797 if (wpa_supplicant_init_eapol(wpa_s) < 0)
4799 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
4801 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
4802 if (wpa_s->ctrl_iface == NULL) {
4803 wpa_printf(MSG_ERROR,
4804 "Failed to initialize control interface '%s'.\n"
4805 "You may have another wpa_supplicant process "
4806 "already running or the file was\n"
4807 "left by an unclean termination of wpa_supplicant "
4808 "in which case you will need\n"
4809 "to manually remove this file before starting "
4810 "wpa_supplicant again.\n",
4811 wpa_s->conf->ctrl_interface);
4815 wpa_s->gas = gas_query_init(wpa_s);
4816 if (wpa_s->gas == NULL) {
4817 wpa_printf(MSG_ERROR, "Failed to initialize GAS query");
4821 if (iface->p2p_mgmt && wpas_p2p_init(wpa_s->global, wpa_s) < 0) {
4822 wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P");
4826 if (wpa_bss_init(wpa_s) < 0)
4830 * Set Wake-on-WLAN triggers, if configured.
4831 * Note: We don't restore/remove the triggers on shutdown (it doesn't
4832 * have effect anyway when the interface is down).
4834 if (capa_res == 0 && wpas_set_wowlan_triggers(wpa_s, &capa) < 0)
4837 #ifdef CONFIG_EAP_PROXY
4840 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, wpa_s->imsi,
4842 if (wpa_s->mnc_len > 0) {
4843 wpa_s->imsi[len] = '\0';
4844 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
4845 wpa_s->imsi, wpa_s->mnc_len);
4847 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
4850 #endif /* CONFIG_EAP_PROXY */
4852 if (pcsc_reader_init(wpa_s) < 0)
4855 if (wpas_init_ext_pw(wpa_s) < 0)
4858 wpas_rrm_reset(wpa_s);
4860 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
4864 #endif /* CONFIG_HS20 */
4866 wpas_mbo_update_non_pref_chan(wpa_s, wpa_s->conf->non_pref_chan);
4867 #endif /* CONFIG_MBO */
4873 static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s,
4874 int notify, int terminate)
4876 struct wpa_global *global = wpa_s->global;
4877 struct wpa_supplicant *iface, *prev;
4879 if (wpa_s == wpa_s->parent)
4880 wpas_p2p_group_remove(wpa_s, "*");
4882 iface = global->ifaces;
4884 if (iface->p2pdev == wpa_s)
4885 iface->p2pdev = iface->parent;
4886 if (iface == wpa_s || iface->parent != wpa_s) {
4887 iface = iface->next;
4890 wpa_printf(MSG_DEBUG,
4891 "Remove remaining child interface %s from parent %s",
4892 iface->ifname, wpa_s->ifname);
4894 iface = iface->next;
4895 wpa_supplicant_remove_iface(global, prev, terminate);
4898 wpa_s->disconnected = 1;
4899 if (wpa_s->drv_priv) {
4900 wpa_supplicant_deauthenticate(wpa_s,
4901 WLAN_REASON_DEAUTH_LEAVING);
4903 wpa_drv_set_countermeasures(wpa_s, 0);
4904 wpa_clear_keys(wpa_s, NULL);
4907 wpa_supplicant_cleanup(wpa_s);
4908 wpas_p2p_deinit_iface(wpa_s);
4910 wpas_ctrl_radio_work_flush(wpa_s);
4911 radio_remove_interface(wpa_s);
4915 fst_detach(wpa_s->fst);
4918 if (wpa_s->received_mb_ies) {
4919 wpabuf_free(wpa_s->received_mb_ies);
4920 wpa_s->received_mb_ies = NULL;
4922 #endif /* CONFIG_FST */
4924 if (wpa_s->drv_priv)
4925 wpa_drv_deinit(wpa_s);
4928 wpas_notify_iface_removed(wpa_s);
4931 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING);
4933 if (wpa_s->ctrl_iface) {
4934 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
4935 wpa_s->ctrl_iface = NULL;
4940 wpa_supplicant_mesh_iface_deinit(wpa_s, wpa_s->ifmsh);
4941 wpa_s->ifmsh = NULL;
4943 #endif /* CONFIG_MESH */
4945 if (wpa_s->conf != NULL) {
4946 wpa_config_free(wpa_s->conf);
4950 os_free(wpa_s->ssids_from_scan_req);
4956 #ifdef CONFIG_MATCH_IFACE
4959 * wpa_supplicant_match_iface - Match an interface description to a name
4960 * @global: Pointer to global data from wpa_supplicant_init()
4961 * @ifname: Name of the interface to match
4962 * Returns: Pointer to the created interface description or %NULL on failure
4964 struct wpa_interface * wpa_supplicant_match_iface(struct wpa_global *global,
4968 struct wpa_interface *iface, *miface;
4970 for (i = 0; i < global->params.match_iface_count; i++) {
4971 miface = &global->params.match_ifaces[i];
4972 if (!miface->ifname ||
4973 fnmatch(miface->ifname, ifname, 0) == 0) {
4974 iface = os_zalloc(sizeof(*iface));
4978 iface->ifname = ifname;
4988 * wpa_supplicant_match_existing - Match existing interfaces
4989 * @global: Pointer to global data from wpa_supplicant_init()
4990 * Returns: 0 on success, -1 on failure
4992 static int wpa_supplicant_match_existing(struct wpa_global *global)
4994 struct if_nameindex *ifi, *ifp;
4995 struct wpa_supplicant *wpa_s;
4996 struct wpa_interface *iface;
4998 ifp = if_nameindex();
5000 wpa_printf(MSG_ERROR, "if_nameindex: %s", strerror(errno));
5004 for (ifi = ifp; ifi->if_name; ifi++) {
5005 wpa_s = wpa_supplicant_get_iface(global, ifi->if_name);
5008 iface = wpa_supplicant_match_iface(global, ifi->if_name);
5010 wpa_s = wpa_supplicant_add_iface(global, iface, NULL);
5017 if_freenameindex(ifp);
5021 #endif /* CONFIG_MATCH_IFACE */
5025 * wpa_supplicant_add_iface - Add a new network interface
5026 * @global: Pointer to global data from wpa_supplicant_init()
5027 * @iface: Interface configuration options
5028 * @parent: Parent interface or %NULL to assign new interface as parent
5029 * Returns: Pointer to the created interface or %NULL on failure
5031 * This function is used to add new network interfaces for %wpa_supplicant.
5032 * This can be called before wpa_supplicant_run() to add interfaces before the
5033 * main event loop has been started. In addition, new interfaces can be added
5034 * dynamically while %wpa_supplicant is already running. This could happen,
5035 * e.g., when a hotplug network adapter is inserted.
5037 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
5038 struct wpa_interface *iface,
5039 struct wpa_supplicant *parent)
5041 struct wpa_supplicant *wpa_s;
5042 struct wpa_interface t_iface;
5043 struct wpa_ssid *ssid;
5045 if (global == NULL || iface == NULL)
5048 wpa_s = wpa_supplicant_alloc(parent);
5052 wpa_s->global = global;
5055 if (global->params.override_driver) {
5056 wpa_printf(MSG_DEBUG, "Override interface parameter: driver "
5058 iface->driver, global->params.override_driver);
5059 t_iface.driver = global->params.override_driver;
5061 if (global->params.override_ctrl_interface) {
5062 wpa_printf(MSG_DEBUG, "Override interface parameter: "
5063 "ctrl_interface ('%s' -> '%s')",
5064 iface->ctrl_interface,
5065 global->params.override_ctrl_interface);
5066 t_iface.ctrl_interface =
5067 global->params.override_ctrl_interface;
5069 if (wpa_supplicant_init_iface(wpa_s, &t_iface)) {
5070 wpa_printf(MSG_DEBUG, "Failed to add interface %s",
5072 wpa_supplicant_deinit_iface(wpa_s, 0, 0);
5076 if (iface->p2p_mgmt == 0) {
5077 /* Notify the control interfaces about new iface */
5078 if (wpas_notify_iface_added(wpa_s)) {
5079 wpa_supplicant_deinit_iface(wpa_s, 1, 0);
5083 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
5084 wpas_notify_network_added(wpa_s, ssid);
5087 wpa_s->next = global->ifaces;
5088 global->ifaces = wpa_s;
5090 wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname);
5091 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5094 if (wpa_s->global->p2p == NULL &&
5095 !wpa_s->global->p2p_disabled && !wpa_s->conf->p2p_disabled &&
5096 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
5097 wpas_p2p_add_p2pdev_interface(
5098 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
5099 wpa_printf(MSG_INFO,
5100 "P2P: Failed to enable P2P Device interface");
5101 /* Try to continue without. P2P will be disabled. */
5103 #endif /* CONFIG_P2P */
5110 * wpa_supplicant_remove_iface - Remove a network interface
5111 * @global: Pointer to global data from wpa_supplicant_init()
5112 * @wpa_s: Pointer to the network interface to be removed
5113 * Returns: 0 if interface was removed, -1 if interface was not found
5115 * This function can be used to dynamically remove network interfaces from
5116 * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In
5117 * addition, this function is used to remove all remaining interfaces when
5118 * %wpa_supplicant is terminated.
5120 int wpa_supplicant_remove_iface(struct wpa_global *global,
5121 struct wpa_supplicant *wpa_s,
5124 struct wpa_supplicant *prev;
5126 unsigned int mesh_if_created = wpa_s->mesh_if_created;
5127 char *ifname = NULL;
5128 #endif /* CONFIG_MESH */
5130 /* Remove interface from the global list of interfaces */
5131 prev = global->ifaces;
5132 if (prev == wpa_s) {
5133 global->ifaces = wpa_s->next;
5135 while (prev && prev->next != wpa_s)
5139 prev->next = wpa_s->next;
5142 wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname);
5145 if (mesh_if_created) {
5146 ifname = os_strdup(wpa_s->ifname);
5147 if (ifname == NULL) {
5148 wpa_dbg(wpa_s, MSG_ERROR,
5149 "mesh: Failed to malloc ifname");
5153 #endif /* CONFIG_MESH */
5155 if (global->p2p_group_formation == wpa_s)
5156 global->p2p_group_formation = NULL;
5157 if (global->p2p_invite_group == wpa_s)
5158 global->p2p_invite_group = NULL;
5159 wpa_supplicant_deinit_iface(wpa_s, 1, terminate);
5162 if (mesh_if_created) {
5163 wpa_drv_if_remove(global->ifaces, WPA_IF_MESH, ifname);
5166 #endif /* CONFIG_MESH */
5173 * wpa_supplicant_get_eap_mode - Get the current EAP mode
5174 * @wpa_s: Pointer to the network interface
5175 * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found
5177 const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s)
5179 const char *eapol_method;
5181 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 &&
5182 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
5186 eapol_method = eapol_sm_get_method_name(wpa_s->eapol);
5187 if (eapol_method == NULL)
5188 return "UNKNOWN-EAP";
5190 return eapol_method;
5195 * wpa_supplicant_get_iface - Get a new network interface
5196 * @global: Pointer to global data from wpa_supplicant_init()
5197 * @ifname: Interface name
5198 * Returns: Pointer to the interface or %NULL if not found
5200 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
5203 struct wpa_supplicant *wpa_s;
5205 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5206 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5213 #ifndef CONFIG_NO_WPA_MSG
5214 static const char * wpa_supplicant_msg_ifname_cb(void *ctx)
5216 struct wpa_supplicant *wpa_s = ctx;
5219 return wpa_s->ifname;
5221 #endif /* CONFIG_NO_WPA_MSG */
5224 #ifndef WPA_SUPPLICANT_CLEANUP_INTERVAL
5225 #define WPA_SUPPLICANT_CLEANUP_INTERVAL 10
5226 #endif /* WPA_SUPPLICANT_CLEANUP_INTERVAL */
5228 /* Periodic cleanup tasks */
5229 static void wpas_periodic(void *eloop_ctx, void *timeout_ctx)
5231 struct wpa_global *global = eloop_ctx;
5232 struct wpa_supplicant *wpa_s;
5234 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
5235 wpas_periodic, global, NULL);
5239 p2p_expire_peers(global->p2p);
5240 #endif /* CONFIG_P2P */
5242 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5243 wpa_bss_flush_by_age(wpa_s, wpa_s->conf->bss_expiration_age);
5246 #endif /* CONFIG_AP */
5252 * wpa_supplicant_init - Initialize %wpa_supplicant
5253 * @params: Parameters for %wpa_supplicant
5254 * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure
5256 * This function is used to initialize %wpa_supplicant. After successful
5257 * initialization, the returned data pointer can be used to add and remove
5258 * network interfaces, and eventually, to deinitialize %wpa_supplicant.
5260 struct wpa_global * wpa_supplicant_init(struct wpa_params *params)
5262 struct wpa_global *global;
5268 #ifdef CONFIG_DRIVER_NDIS
5270 void driver_ndis_init_ops(void);
5271 driver_ndis_init_ops();
5273 #endif /* CONFIG_DRIVER_NDIS */
5275 #ifndef CONFIG_NO_WPA_MSG
5276 wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb);
5277 #endif /* CONFIG_NO_WPA_MSG */
5279 if (params->wpa_debug_file_path)
5280 wpa_debug_open_file(params->wpa_debug_file_path);
5282 wpa_debug_setup_stdout();
5283 if (params->wpa_debug_syslog)
5284 wpa_debug_open_syslog();
5285 if (params->wpa_debug_tracing) {
5286 ret = wpa_debug_open_linux_tracing();
5288 wpa_printf(MSG_ERROR,
5289 "Failed to enable trace logging");
5294 ret = eap_register_methods();
5296 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
5298 wpa_printf(MSG_ERROR, "Two or more EAP methods used "
5299 "the same EAP type.");
5303 global = os_zalloc(sizeof(*global));
5306 dl_list_init(&global->p2p_srv_bonjour);
5307 dl_list_init(&global->p2p_srv_upnp);
5308 global->params.daemonize = params->daemonize;
5309 global->params.wait_for_monitor = params->wait_for_monitor;
5310 global->params.dbus_ctrl_interface = params->dbus_ctrl_interface;
5311 if (params->pid_file)
5312 global->params.pid_file = os_strdup(params->pid_file);
5313 if (params->ctrl_interface)
5314 global->params.ctrl_interface =
5315 os_strdup(params->ctrl_interface);
5316 if (params->ctrl_interface_group)
5317 global->params.ctrl_interface_group =
5318 os_strdup(params->ctrl_interface_group);
5319 if (params->override_driver)
5320 global->params.override_driver =
5321 os_strdup(params->override_driver);
5322 if (params->override_ctrl_interface)
5323 global->params.override_ctrl_interface =
5324 os_strdup(params->override_ctrl_interface);
5325 #ifdef CONFIG_MATCH_IFACE
5326 global->params.match_iface_count = params->match_iface_count;
5327 if (params->match_iface_count) {
5328 global->params.match_ifaces =
5329 os_calloc(params->match_iface_count,
5330 sizeof(struct wpa_interface));
5331 os_memcpy(global->params.match_ifaces,
5332 params->match_ifaces,
5333 params->match_iface_count *
5334 sizeof(struct wpa_interface));
5336 #endif /* CONFIG_MATCH_IFACE */
5338 if (params->conf_p2p_dev)
5339 global->params.conf_p2p_dev =
5340 os_strdup(params->conf_p2p_dev);
5341 #endif /* CONFIG_P2P */
5342 wpa_debug_level = global->params.wpa_debug_level =
5343 params->wpa_debug_level;
5344 wpa_debug_show_keys = global->params.wpa_debug_show_keys =
5345 params->wpa_debug_show_keys;
5346 wpa_debug_timestamp = global->params.wpa_debug_timestamp =
5347 params->wpa_debug_timestamp;
5349 wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR);
5352 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
5353 wpa_supplicant_deinit(global);
5357 random_init(params->entropy_file);
5359 global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global);
5360 if (global->ctrl_iface == NULL) {
5361 wpa_supplicant_deinit(global);
5365 if (wpas_notify_supplicant_initialized(global)) {
5366 wpa_supplicant_deinit(global);
5370 for (i = 0; wpa_drivers[i]; i++)
5371 global->drv_count++;
5372 if (global->drv_count == 0) {
5373 wpa_printf(MSG_ERROR, "No drivers enabled");
5374 wpa_supplicant_deinit(global);
5377 global->drv_priv = os_calloc(global->drv_count, sizeof(void *));
5378 if (global->drv_priv == NULL) {
5379 wpa_supplicant_deinit(global);
5383 #ifdef CONFIG_WIFI_DISPLAY
5384 if (wifi_display_init(global) < 0) {
5385 wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display");
5386 wpa_supplicant_deinit(global);
5389 #endif /* CONFIG_WIFI_DISPLAY */
5391 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
5392 wpas_periodic, global, NULL);
5399 * wpa_supplicant_run - Run the %wpa_supplicant main event loop
5400 * @global: Pointer to global data from wpa_supplicant_init()
5401 * Returns: 0 after successful event loop run, -1 on failure
5403 * This function starts the main event loop and continues running as long as
5404 * there are any remaining events. In most cases, this function is running as
5405 * long as the %wpa_supplicant process in still in use.
5407 int wpa_supplicant_run(struct wpa_global *global)
5409 struct wpa_supplicant *wpa_s;
5411 if (global->params.daemonize &&
5412 (wpa_supplicant_daemon(global->params.pid_file) ||
5413 eloop_sock_requeue()))
5416 #ifdef CONFIG_MATCH_IFACE
5417 if (wpa_supplicant_match_existing(global))
5421 if (global->params.wait_for_monitor) {
5422 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
5423 if (wpa_s->ctrl_iface && !wpa_s->p2p_mgmt)
5424 wpa_supplicant_ctrl_iface_wait(
5428 eloop_register_signal_terminate(wpa_supplicant_terminate, global);
5429 eloop_register_signal_reconfig(wpa_supplicant_reconfig, global);
5438 * wpa_supplicant_deinit - Deinitialize %wpa_supplicant
5439 * @global: Pointer to global data from wpa_supplicant_init()
5441 * This function is called to deinitialize %wpa_supplicant and to free all
5442 * allocated resources. Remaining network interfaces will also be removed.
5444 void wpa_supplicant_deinit(struct wpa_global *global)
5451 eloop_cancel_timeout(wpas_periodic, global, NULL);
5453 #ifdef CONFIG_WIFI_DISPLAY
5454 wifi_display_deinit(global);
5455 #endif /* CONFIG_WIFI_DISPLAY */
5457 while (global->ifaces)
5458 wpa_supplicant_remove_iface(global, global->ifaces, 1);
5460 if (global->ctrl_iface)
5461 wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface);
5463 wpas_notify_supplicant_deinitialized(global);
5465 eap_peer_unregister_methods();
5467 eap_server_unregister_methods();
5468 #endif /* CONFIG_AP */
5470 for (i = 0; wpa_drivers[i] && global->drv_priv; i++) {
5471 if (!global->drv_priv[i])
5473 wpa_drivers[i]->global_deinit(global->drv_priv[i]);
5475 os_free(global->drv_priv);
5481 if (global->params.pid_file) {
5482 os_daemonize_terminate(global->params.pid_file);
5483 os_free(global->params.pid_file);
5485 os_free(global->params.ctrl_interface);
5486 os_free(global->params.ctrl_interface_group);
5487 os_free(global->params.override_driver);
5488 os_free(global->params.override_ctrl_interface);
5489 #ifdef CONFIG_MATCH_IFACE
5490 os_free(global->params.match_ifaces);
5491 #endif /* CONFIG_MATCH_IFACE */
5493 os_free(global->params.conf_p2p_dev);
5494 #endif /* CONFIG_P2P */
5496 os_free(global->p2p_disallow_freq.range);
5497 os_free(global->p2p_go_avoid_freq.range);
5498 os_free(global->add_psk);
5501 wpa_debug_close_syslog();
5502 wpa_debug_close_file();
5503 wpa_debug_close_linux_tracing();
5507 void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s)
5509 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
5510 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
5512 country[0] = wpa_s->conf->country[0];
5513 country[1] = wpa_s->conf->country[1];
5515 if (wpa_drv_set_country(wpa_s, country) < 0) {
5516 wpa_printf(MSG_ERROR, "Failed to set country code "
5521 if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND)
5522 wpas_init_ext_pw(wpa_s);
5524 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SCHED_SCAN_PLANS)
5525 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
5528 wpas_wps_update_config(wpa_s);
5529 #endif /* CONFIG_WPS */
5530 wpas_p2p_update_config(wpa_s);
5531 wpa_s->conf->changed_parameters = 0;
5535 void add_freq(int *freqs, int *num_freqs, int freq)
5539 for (i = 0; i < *num_freqs; i++) {
5540 if (freqs[i] == freq)
5544 freqs[*num_freqs] = freq;
5549 static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s)
5551 struct wpa_bss *bss, *cbss;
5552 const int max_freqs = 10;
5556 freqs = os_calloc(max_freqs + 1, sizeof(int));
5560 cbss = wpa_s->current_bss;
5562 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
5565 if (bss->ssid_len == cbss->ssid_len &&
5566 os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 &&
5567 wpa_blacklist_get(wpa_s, bss->bssid) == NULL) {
5568 add_freq(freqs, &num_freqs, bss->freq);
5569 if (num_freqs == max_freqs)
5574 if (num_freqs == 0) {
5583 void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid)
5589 wpas_connect_work_done(wpa_s);
5592 * Remove possible authentication timeout since the connection failed.
5594 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
5597 * There is no point in blacklisting the AP if this event is
5598 * generated based on local request to disconnect.
5600 if (wpa_s->own_disconnect_req) {
5601 wpa_s->own_disconnect_req = 0;
5602 wpa_dbg(wpa_s, MSG_DEBUG,
5603 "Ignore connection failure due to local request to disconnect");
5606 if (wpa_s->disconnected) {
5607 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure "
5608 "indication since interface has been put into "
5609 "disconnected state");
5614 * Add the failed BSSID into the blacklist and speed up next scan
5615 * attempt if there could be other APs that could accept association.
5616 * The current blacklist count indicates how many times we have tried
5617 * connecting to this AP and multiple attempts mean that other APs are
5618 * either not available or has already been tried, so that we can start
5619 * increasing the delay here to avoid constant scanning.
5621 count = wpa_blacklist_add(wpa_s, bssid);
5622 if (count == 1 && wpa_s->current_bss) {
5624 * This BSS was not in the blacklist before. If there is
5625 * another BSS available for the same ESS, we should try that
5626 * next. Otherwise, we may as well try this one once more
5627 * before allowing other, likely worse, ESSes to be considered.
5629 freqs = get_bss_freqs_in_ess(wpa_s);
5631 wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS "
5632 "has been seen; try it next");
5633 wpa_blacklist_add(wpa_s, bssid);
5635 * On the next scan, go through only the known channels
5636 * used in this ESS based on previous scans to speed up
5637 * common load balancing use case.
5639 os_free(wpa_s->next_scan_freqs);
5640 wpa_s->next_scan_freqs = freqs;
5645 * Add previous failure count in case the temporary blacklist was
5646 * cleared due to no other BSSes being available.
5648 count += wpa_s->extra_blacklist_count;
5650 if (count > 3 && wpa_s->current_ssid) {
5651 wpa_printf(MSG_DEBUG, "Continuous association failures - "
5652 "consider temporary network disabling");
5653 wpas_auth_failed(wpa_s, "CONN_FAILED");
5674 wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d "
5675 "ms", count, timeout);
5678 * TODO: if more than one possible AP is available in scan results,
5679 * could try the other ones before requesting a new scan.
5681 wpa_supplicant_req_scan(wpa_s, timeout / 1000,
5682 1000 * (timeout % 1000));
5686 int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s)
5688 return wpa_s->conf->ap_scan == 2 ||
5689 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION);
5693 #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW)
5694 int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s,
5695 struct wpa_ssid *ssid,
5699 #ifdef IEEE8021X_EAPOL
5700 struct eap_peer_config *eap = &ssid->eap;
5702 wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field);
5703 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value",
5704 (const u8 *) value, os_strlen(value));
5706 switch (wpa_supplicant_ctrl_req_from_string(field)) {
5707 case WPA_CTRL_REQ_EAP_IDENTITY:
5708 os_free(eap->identity);
5709 eap->identity = (u8 *) os_strdup(value);
5710 eap->identity_len = os_strlen(value);
5711 eap->pending_req_identity = 0;
5712 if (ssid == wpa_s->current_ssid)
5713 wpa_s->reassociate = 1;
5715 case WPA_CTRL_REQ_EAP_PASSWORD:
5716 bin_clear_free(eap->password, eap->password_len);
5717 eap->password = (u8 *) os_strdup(value);
5718 eap->password_len = os_strlen(value);
5719 eap->pending_req_password = 0;
5720 if (ssid == wpa_s->current_ssid)
5721 wpa_s->reassociate = 1;
5723 case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
5724 bin_clear_free(eap->new_password, eap->new_password_len);
5725 eap->new_password = (u8 *) os_strdup(value);
5726 eap->new_password_len = os_strlen(value);
5727 eap->pending_req_new_password = 0;
5728 if (ssid == wpa_s->current_ssid)
5729 wpa_s->reassociate = 1;
5731 case WPA_CTRL_REQ_EAP_PIN:
5732 str_clear_free(eap->pin);
5733 eap->pin = os_strdup(value);
5734 eap->pending_req_pin = 0;
5735 if (ssid == wpa_s->current_ssid)
5736 wpa_s->reassociate = 1;
5738 case WPA_CTRL_REQ_EAP_OTP:
5739 bin_clear_free(eap->otp, eap->otp_len);
5740 eap->otp = (u8 *) os_strdup(value);
5741 eap->otp_len = os_strlen(value);
5742 os_free(eap->pending_req_otp);
5743 eap->pending_req_otp = NULL;
5744 eap->pending_req_otp_len = 0;
5746 case WPA_CTRL_REQ_EAP_PASSPHRASE:
5747 str_clear_free(eap->private_key_passwd);
5748 eap->private_key_passwd = os_strdup(value);
5749 eap->pending_req_passphrase = 0;
5750 if (ssid == wpa_s->current_ssid)
5751 wpa_s->reassociate = 1;
5753 case WPA_CTRL_REQ_SIM:
5754 str_clear_free(eap->external_sim_resp);
5755 eap->external_sim_resp = os_strdup(value);
5757 case WPA_CTRL_REQ_PSK_PASSPHRASE:
5758 if (wpa_config_set(ssid, "psk", value, 0) < 0)
5760 ssid->mem_only_psk = 1;
5761 if (ssid->passphrase)
5762 wpa_config_update_psk(ssid);
5763 if (wpa_s->wpa_state == WPA_SCANNING && !wpa_s->scanning)
5764 wpa_supplicant_req_scan(wpa_s, 0, 0);
5766 case WPA_CTRL_REQ_EXT_CERT_CHECK:
5767 if (eap->pending_ext_cert_check != PENDING_CHECK)
5769 if (os_strcmp(value, "good") == 0)
5770 eap->pending_ext_cert_check = EXT_CERT_CHECK_GOOD;
5771 else if (os_strcmp(value, "bad") == 0)
5772 eap->pending_ext_cert_check = EXT_CERT_CHECK_BAD;
5777 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field);
5782 #else /* IEEE8021X_EAPOL */
5783 wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included");
5785 #endif /* IEEE8021X_EAPOL */
5787 #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */
5790 int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5793 unsigned int drv_enc;
5795 if (wpa_s->p2p_mgmt)
5796 return 1; /* no normal network profiles on p2p_mgmt interface */
5804 if (wpa_s->drv_capa_known)
5805 drv_enc = wpa_s->drv_enc;
5807 drv_enc = (unsigned int) -1;
5809 for (i = 0; i < NUM_WEP_KEYS; i++) {
5810 size_t len = ssid->wep_key_len[i];
5813 if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40))
5815 if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104))
5817 if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128))
5819 return 1; /* invalid WEP key */
5822 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
5823 (!ssid->passphrase || ssid->ssid_len != 0) && !ssid->ext_psk &&
5824 !ssid->mem_only_psk)
5831 int wpas_get_ssid_pmf(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5833 #ifdef CONFIG_IEEE80211W
5834 if (ssid == NULL || ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT) {
5835 if (wpa_s->conf->pmf == MGMT_FRAME_PROTECTION_OPTIONAL &&
5836 !(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_BIP)) {
5838 * Driver does not support BIP -- ignore pmf=1 default
5839 * since the connection with PMF would fail and the
5840 * configuration does not require PMF to be enabled.
5842 return NO_MGMT_FRAME_PROTECTION;
5847 ~(WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPS |
5848 WPA_KEY_MGMT_IEEE8021X_NO_WPA)) == 0) {
5850 * Do not use the default PMF value for non-RSN networks
5851 * since PMF is available only with RSN and pmf=2
5852 * configuration would otherwise prevent connections to
5853 * all open networks.
5855 return NO_MGMT_FRAME_PROTECTION;
5858 return wpa_s->conf->pmf;
5861 return ssid->ieee80211w;
5862 #else /* CONFIG_IEEE80211W */
5863 return NO_MGMT_FRAME_PROTECTION;
5864 #endif /* CONFIG_IEEE80211W */
5868 int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s)
5870 if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P)
5872 if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA)
5878 void wpas_auth_failed(struct wpa_supplicant *wpa_s, char *reason)
5880 struct wpa_ssid *ssid = wpa_s->current_ssid;
5882 struct os_reltime now;
5885 wpa_printf(MSG_DEBUG, "Authentication failure but no known "
5890 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
5893 ssid->auth_failures++;
5896 if (ssid->p2p_group &&
5897 (wpa_s->p2p_in_provisioning || wpa_s->show_group_started)) {
5899 * Skip the wait time since there is a short timeout on the
5900 * connection to a P2P group.
5904 #endif /* CONFIG_P2P */
5906 if (ssid->auth_failures > 50)
5908 else if (ssid->auth_failures > 10)
5910 else if (ssid->auth_failures > 5)
5912 else if (ssid->auth_failures > 3)
5914 else if (ssid->auth_failures > 2)
5916 else if (ssid->auth_failures > 1)
5921 if (ssid->auth_failures > 1 &&
5922 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt))
5923 dur += os_random() % (ssid->auth_failures * 10);
5925 os_get_reltime(&now);
5926 if (now.sec + dur <= ssid->disabled_until.sec)
5929 ssid->disabled_until.sec = now.sec + dur;
5931 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED
5932 "id=%d ssid=\"%s\" auth_failures=%u duration=%d reason=%s",
5933 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
5934 ssid->auth_failures, dur, reason);
5938 void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s,
5939 struct wpa_ssid *ssid, int clear_failures)
5944 if (ssid->disabled_until.sec) {
5945 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED
5946 "id=%d ssid=\"%s\"",
5947 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
5949 ssid->disabled_until.sec = 0;
5950 ssid->disabled_until.usec = 0;
5952 ssid->auth_failures = 0;
5956 int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid)
5960 if (wpa_s->disallow_aps_bssid == NULL)
5963 for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) {
5964 if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN,
5965 bssid, ETH_ALEN) == 0)
5973 int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid,
5978 if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL)
5981 for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) {
5982 struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i];
5983 if (ssid_len == s->ssid_len &&
5984 os_memcmp(ssid, s->ssid, ssid_len) == 0)
5993 * wpas_request_connection - Request a new connection
5994 * @wpa_s: Pointer to the network interface
5996 * This function is used to request a new connection to be found. It will mark
5997 * the interface to allow reassociation and request a new scan to find a
5998 * suitable network to connect to.
6000 void wpas_request_connection(struct wpa_supplicant *wpa_s)
6002 wpa_s->normal_scans = 0;
6003 wpa_s->scan_req = NORMAL_SCAN_REQ;
6004 wpa_supplicant_reinit_autoscan(wpa_s);
6005 wpa_s->extra_blacklist_count = 0;
6006 wpa_s->disconnected = 0;
6007 wpa_s->reassociate = 1;
6009 if (wpa_supplicant_fast_associate(wpa_s) != 1)
6010 wpa_supplicant_req_scan(wpa_s, 0, 0);
6012 wpa_s->reattach = 0;
6016 void dump_freq_data(struct wpa_supplicant *wpa_s, const char *title,
6017 struct wpa_used_freq_data *freqs_data,
6022 wpa_dbg(wpa_s, MSG_DEBUG, "Shared frequencies (len=%u): %s",
6024 for (i = 0; i < len; i++) {
6025 struct wpa_used_freq_data *cur = &freqs_data[i];
6026 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d, flags=0x%X",
6027 i, cur->freq, cur->flags);
6033 * Find the operating frequencies of any of the virtual interfaces that
6034 * are using the same radio as the current interface, and in addition, get
6035 * information about the interface types that are using the frequency.
6037 int get_shared_radio_freqs_data(struct wpa_supplicant *wpa_s,
6038 struct wpa_used_freq_data *freqs_data,
6041 struct wpa_supplicant *ifs;
6044 unsigned int idx = 0, i;
6046 wpa_dbg(wpa_s, MSG_DEBUG,
6047 "Determining shared radio frequencies (max len %u)", len);
6048 os_memset(freqs_data, 0, sizeof(struct wpa_used_freq_data) * len);
6050 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6055 if (ifs->current_ssid == NULL || ifs->assoc_freq == 0)
6058 if (ifs->current_ssid->mode == WPAS_MODE_AP ||
6059 ifs->current_ssid->mode == WPAS_MODE_P2P_GO ||
6060 ifs->current_ssid->mode == WPAS_MODE_MESH)
6061 freq = ifs->current_ssid->frequency;
6062 else if (wpa_drv_get_bssid(ifs, bssid) == 0)
6063 freq = ifs->assoc_freq;
6067 /* Hold only distinct freqs */
6068 for (i = 0; i < idx; i++)
6069 if (freqs_data[i].freq == freq)
6073 freqs_data[idx++].freq = freq;
6075 if (ifs->current_ssid->mode == WPAS_MODE_INFRA) {
6076 freqs_data[i].flags |= ifs->current_ssid->p2p_group ?
6077 WPA_FREQ_USED_BY_P2P_CLIENT :
6078 WPA_FREQ_USED_BY_INFRA_STATION;
6082 dump_freq_data(wpa_s, "completed iteration", freqs_data, idx);
6088 * Find the operating frequencies of any of the virtual interfaces that
6089 * are using the same radio as the current interface.
6091 int get_shared_radio_freqs(struct wpa_supplicant *wpa_s,
6092 int *freq_array, unsigned int len)
6094 struct wpa_used_freq_data *freqs_data;
6097 os_memset(freq_array, 0, sizeof(int) * len);
6099 freqs_data = os_calloc(len, sizeof(struct wpa_used_freq_data));
6103 num = get_shared_radio_freqs_data(wpa_s, freqs_data, len);
6104 for (i = 0; i < num; i++)
6105 freq_array[i] = freqs_data[i].freq;
6107 os_free(freqs_data);
6113 static void wpas_rrm_neighbor_rep_timeout_handler(void *data, void *user_ctx)
6115 struct rrm_data *rrm = data;
6117 if (!rrm->notify_neighbor_rep) {
6118 wpa_printf(MSG_ERROR,
6119 "RRM: Unexpected neighbor report timeout");
6123 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report - NONE");
6124 rrm->notify_neighbor_rep(rrm->neighbor_rep_cb_ctx, NULL);
6126 rrm->notify_neighbor_rep = NULL;
6127 rrm->neighbor_rep_cb_ctx = NULL;
6132 * wpas_rrm_reset - Clear and reset all RRM data in wpa_supplicant
6133 * @wpa_s: Pointer to wpa_supplicant
6135 void wpas_rrm_reset(struct wpa_supplicant *wpa_s)
6137 wpa_s->rrm.rrm_used = 0;
6139 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
6141 if (wpa_s->rrm.notify_neighbor_rep)
6142 wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL);
6143 wpa_s->rrm.next_neighbor_rep_token = 1;
6148 * wpas_rrm_process_neighbor_rep - Handle incoming neighbor report
6149 * @wpa_s: Pointer to wpa_supplicant
6150 * @report: Neighbor report buffer, prefixed by a 1-byte dialog token
6151 * @report_len: Length of neighbor report buffer
6153 void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
6154 const u8 *report, size_t report_len)
6156 struct wpabuf *neighbor_rep;
6158 wpa_hexdump(MSG_DEBUG, "RRM: New Neighbor Report", report, report_len);
6162 if (report[0] != wpa_s->rrm.next_neighbor_rep_token - 1) {
6163 wpa_printf(MSG_DEBUG,
6164 "RRM: Discarding neighbor report with token %d (expected %d)",
6165 report[0], wpa_s->rrm.next_neighbor_rep_token - 1);
6169 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
6172 if (!wpa_s->rrm.notify_neighbor_rep) {
6173 wpa_printf(MSG_ERROR, "RRM: Unexpected neighbor report");
6177 /* skipping the first byte, which is only an id (dialog token) */
6178 neighbor_rep = wpabuf_alloc(report_len - 1);
6179 if (neighbor_rep == NULL)
6181 wpabuf_put_data(neighbor_rep, report + 1, report_len - 1);
6182 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report (token = %d)",
6184 wpa_s->rrm.notify_neighbor_rep(wpa_s->rrm.neighbor_rep_cb_ctx,
6186 wpa_s->rrm.notify_neighbor_rep = NULL;
6187 wpa_s->rrm.neighbor_rep_cb_ctx = NULL;
6191 #if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
6192 /* Workaround different, undefined for Windows, error codes used here */
6194 #define EOPNOTSUPP -1
6195 #define ECANCELED -1
6198 /* Measurement Request element + Location Subject + Maximum Age subelement */
6199 #define MEASURE_REQUEST_LCI_LEN (3 + 1 + 4)
6200 /* Measurement Request element + Location Civic Request */
6201 #define MEASURE_REQUEST_CIVIC_LEN (3 + 5)
6205 * wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP
6206 * @wpa_s: Pointer to wpa_supplicant
6207 * @ssid: if not null, this is sent in the request. Otherwise, no SSID IE
6208 * is sent in the request.
6209 * @lci: if set, neighbor request will include LCI request
6210 * @civic: if set, neighbor request will include civic location request
6211 * @cb: Callback function to be called once the requested report arrives, or
6212 * timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds.
6213 * In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's
6214 * the requester's responsibility to free it.
6215 * In the latter case NULL will be sent in 'neighbor_rep'.
6216 * @cb_ctx: Context value to send the callback function
6217 * Returns: 0 in case of success, negative error code otherwise
6219 * In case there is a previous request which has not been answered yet, the
6220 * new request fails. The caller may retry after RRM_NEIGHBOR_REPORT_TIMEOUT.
6221 * Request must contain a callback function.
6223 int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
6224 const struct wpa_ssid_value *ssid,
6226 void (*cb)(void *ctx,
6227 struct wpabuf *neighbor_rep),
6233 if (wpa_s->wpa_state != WPA_COMPLETED || wpa_s->current_ssid == NULL) {
6234 wpa_printf(MSG_DEBUG, "RRM: No connection, no RRM.");
6238 if (!wpa_s->rrm.rrm_used) {
6239 wpa_printf(MSG_DEBUG, "RRM: No RRM in current connection.");
6243 rrm_ie = wpa_bss_get_ie(wpa_s->current_bss,
6244 WLAN_EID_RRM_ENABLED_CAPABILITIES);
6245 if (!rrm_ie || !(wpa_s->current_bss->caps & IEEE80211_CAP_RRM) ||
6246 !(rrm_ie[2] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
6247 wpa_printf(MSG_DEBUG,
6248 "RRM: No network support for Neighbor Report.");
6253 wpa_printf(MSG_DEBUG,
6254 "RRM: Neighbor Report request must provide a callback.");
6258 /* Refuse if there's a live request */
6259 if (wpa_s->rrm.notify_neighbor_rep) {
6260 wpa_printf(MSG_DEBUG,
6261 "RRM: Currently handling previous Neighbor Report.");
6265 /* 3 = action category + action code + dialog token */
6266 buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0) +
6267 (lci ? 2 + MEASURE_REQUEST_LCI_LEN : 0) +
6268 (civic ? 2 + MEASURE_REQUEST_CIVIC_LEN : 0));
6270 wpa_printf(MSG_DEBUG,
6271 "RRM: Failed to allocate Neighbor Report Request");
6275 wpa_printf(MSG_DEBUG, "RRM: Neighbor report request (for %s), token=%d",
6276 (ssid ? wpa_ssid_txt(ssid->ssid, ssid->ssid_len) : ""),
6277 wpa_s->rrm.next_neighbor_rep_token);
6279 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6280 wpabuf_put_u8(buf, WLAN_RRM_NEIGHBOR_REPORT_REQUEST);
6281 wpabuf_put_u8(buf, wpa_s->rrm.next_neighbor_rep_token);
6283 wpabuf_put_u8(buf, WLAN_EID_SSID);
6284 wpabuf_put_u8(buf, ssid->ssid_len);
6285 wpabuf_put_data(buf, ssid->ssid, ssid->ssid_len);
6289 /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
6290 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
6291 wpabuf_put_u8(buf, MEASURE_REQUEST_LCI_LEN);
6294 * Measurement token; nonzero number that is unique among the
6295 * Measurement Request elements in a particular frame.
6297 wpabuf_put_u8(buf, 1); /* Measurement Token */
6300 * Parallel, Enable, Request, and Report bits are 0, Duration is
6303 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
6304 wpabuf_put_u8(buf, MEASURE_TYPE_LCI); /* Measurement Type */
6306 /* IEEE P802.11-REVmc/D5.0 9.4.2.21.10 - LCI request */
6307 /* Location Subject */
6308 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
6310 /* Optional Subelements */
6312 * IEEE P802.11-REVmc/D5.0 Figure 9-170
6313 * The Maximum Age subelement is required, otherwise the AP can
6314 * send only data that was determined after receiving the
6315 * request. Setting it here to unlimited age.
6317 wpabuf_put_u8(buf, LCI_REQ_SUBELEM_MAX_AGE);
6318 wpabuf_put_u8(buf, 2);
6319 wpabuf_put_le16(buf, 0xffff);
6323 /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
6324 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
6325 wpabuf_put_u8(buf, MEASURE_REQUEST_CIVIC_LEN);
6328 * Measurement token; nonzero number that is unique among the
6329 * Measurement Request elements in a particular frame.
6331 wpabuf_put_u8(buf, 2); /* Measurement Token */
6334 * Parallel, Enable, Request, and Report bits are 0, Duration is
6337 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
6338 /* Measurement Type */
6339 wpabuf_put_u8(buf, MEASURE_TYPE_LOCATION_CIVIC);
6341 /* IEEE P802.11-REVmc/D5.0 9.4.2.21.14:
6342 * Location Civic request */
6343 /* Location Subject */
6344 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
6345 wpabuf_put_u8(buf, 0); /* Civic Location Type: IETF RFC 4776 */
6346 /* Location Service Interval Units: Seconds */
6347 wpabuf_put_u8(buf, 0);
6348 /* Location Service Interval: 0 - Only one report is requested
6350 wpabuf_put_le16(buf, 0);
6351 /* No optional subelements */
6354 wpa_s->rrm.next_neighbor_rep_token++;
6356 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
6357 wpa_s->own_addr, wpa_s->bssid,
6358 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
6359 wpa_printf(MSG_DEBUG,
6360 "RRM: Failed to send Neighbor Report Request");
6365 wpa_s->rrm.neighbor_rep_cb_ctx = cb_ctx;
6366 wpa_s->rrm.notify_neighbor_rep = cb;
6367 eloop_register_timeout(RRM_NEIGHBOR_REPORT_TIMEOUT, 0,
6368 wpas_rrm_neighbor_rep_timeout_handler,
6376 static struct wpabuf * wpas_rrm_build_lci_report(struct wpa_supplicant *wpa_s,
6377 const u8 *request, size_t len,
6378 struct wpabuf *report)
6380 u8 token, type, subject;
6382 struct os_reltime t, diff;
6383 unsigned long diff_l;
6387 if (!wpa_s->lci || len < 3 + 4)
6391 /* Measurement request mode isn't used */
6394 subject = *request++;
6396 wpa_printf(MSG_DEBUG,
6397 "Measurement request token %u type %u location subject %u",
6398 token, type, subject);
6400 if (type != MEASURE_TYPE_LCI || subject != LOCATION_SUBJECT_REMOTE) {
6401 wpa_printf(MSG_INFO,
6402 "Not building LCI report - bad type or location subject");
6406 /* Subelements are formatted exactly like elements */
6407 subelem = get_ie(request, len, LCI_REQ_SUBELEM_MAX_AGE);
6408 if (subelem && subelem[1] == 2)
6409 max_age = WPA_GET_LE16(subelem + 2);
6411 if (os_get_reltime(&t))
6414 os_reltime_sub(&t, &wpa_s->lci_time, &diff);
6415 /* LCI age is calculated in 10th of a second units. */
6416 diff_l = diff.sec * 10 + diff.usec / 100000;
6418 if (max_age != 0xffff && max_age < diff_l)
6421 if (wpabuf_resize(&report, 2 + wpabuf_len(wpa_s->lci)))
6424 wpabuf_put_u8(report, WLAN_EID_MEASURE_REPORT);
6425 wpabuf_put_u8(report, wpabuf_len(wpa_s->lci));
6426 /* We'll override user's measurement token */
6427 ptoken = wpabuf_put(report, 0);
6428 wpabuf_put_buf(report, wpa_s->lci);
6435 void wpas_rrm_handle_radio_measurement_request(struct wpa_supplicant *wpa_s,
6437 const u8 *frame, size_t len)
6439 struct wpabuf *buf, *report;
6443 if (wpa_s->wpa_state != WPA_COMPLETED) {
6444 wpa_printf(MSG_INFO,
6445 "RRM: Ignoring radio measurement request: Not associated");
6449 if (!wpa_s->rrm.rrm_used) {
6450 wpa_printf(MSG_INFO,
6451 "RRM: Ignoring radio measurement request: Not RRM network");
6456 wpa_printf(MSG_INFO,
6457 "RRM: Ignoring too short radio measurement request");
6465 /* Ignore number of repetitions because it's not used in LCI request */
6469 while ((ie = get_ie(frame, end - frame, WLAN_EID_MEASURE_REQUEST)) &&
6474 wpa_printf(MSG_DEBUG, "RRM request %d", msmt_type);
6476 switch (msmt_type) {
6477 case MEASURE_TYPE_LCI:
6478 report = wpas_rrm_build_lci_report(wpa_s, ie + 2, ie[1],
6482 wpa_printf(MSG_INFO,
6483 "RRM: Unsupported radio measurement request %d",
6488 frame = ie + ie[1] + 2;
6494 buf = wpabuf_alloc(3 + wpabuf_len(report));
6496 wpabuf_free(report);
6500 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6501 wpabuf_put_u8(buf, WLAN_RRM_RADIO_MEASUREMENT_REPORT);
6502 wpabuf_put_u8(buf, token);
6504 wpabuf_put_buf(buf, report);
6505 wpabuf_free(report);
6507 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
6508 wpa_s->own_addr, wpa_s->bssid,
6509 wpabuf_head(buf), wpabuf_len(buf), 0)) {
6510 wpa_printf(MSG_ERROR,
6511 "RRM: Radio measurement report failed: Sending Action frame failed");
6517 void wpas_rrm_handle_link_measurement_request(struct wpa_supplicant *wpa_s,
6519 const u8 *frame, size_t len,
6523 const struct rrm_link_measurement_request *req;
6524 struct rrm_link_measurement_report report;
6526 if (wpa_s->wpa_state != WPA_COMPLETED) {
6527 wpa_printf(MSG_INFO,
6528 "RRM: Ignoring link measurement request. Not associated");
6532 if (!wpa_s->rrm.rrm_used) {
6533 wpa_printf(MSG_INFO,
6534 "RRM: Ignoring link measurement request. Not RRM network");
6538 if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)) {
6539 wpa_printf(MSG_INFO,
6540 "RRM: Measurement report failed. TX power insertion not supported");
6544 req = (const struct rrm_link_measurement_request *) frame;
6545 if (len < sizeof(*req)) {
6546 wpa_printf(MSG_INFO,
6547 "RRM: Link measurement report failed. Request too short");
6551 os_memset(&report, 0, sizeof(report));
6552 report.tpc.eid = WLAN_EID_TPC_REPORT;
6554 report.rsni = 255; /* 255 indicates that RSNI is not available */
6555 report.dialog_token = req->dialog_token;
6558 * It's possible to estimate RCPI based on RSSI in dBm. This
6559 * calculation will not reflect the correct value for high rates,
6560 * but it's good enough for Action frames which are transmitted
6561 * with up to 24 Mbps rates.
6564 report.rcpi = 255; /* not available */
6565 else if (rssi < -110)
6570 report.rcpi = (rssi + 110) * 2;
6572 /* action_category + action_code */
6573 buf = wpabuf_alloc(2 + sizeof(report));
6575 wpa_printf(MSG_ERROR,
6576 "RRM: Link measurement report failed. Buffer allocation failed");
6580 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6581 wpabuf_put_u8(buf, WLAN_RRM_LINK_MEASUREMENT_REPORT);
6582 wpabuf_put_data(buf, &report, sizeof(report));
6583 wpa_hexdump(MSG_DEBUG, "RRM: Link measurement report:",
6584 wpabuf_head(buf), wpabuf_len(buf));
6586 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
6587 wpa_s->own_addr, wpa_s->bssid,
6588 wpabuf_head(buf), wpabuf_len(buf), 0)) {
6589 wpa_printf(MSG_ERROR,
6590 "RRM: Link measurement report failed. Send action failed");
6596 struct wpa_supplicant *
6597 wpas_vendor_elem(struct wpa_supplicant *wpa_s, enum wpa_vendor_elem_frame frame)
6601 case VENDOR_ELEM_PROBE_REQ_P2P:
6602 case VENDOR_ELEM_PROBE_RESP_P2P:
6603 case VENDOR_ELEM_PROBE_RESP_P2P_GO:
6604 case VENDOR_ELEM_BEACON_P2P_GO:
6605 case VENDOR_ELEM_P2P_PD_REQ:
6606 case VENDOR_ELEM_P2P_PD_RESP:
6607 case VENDOR_ELEM_P2P_GO_NEG_REQ:
6608 case VENDOR_ELEM_P2P_GO_NEG_RESP:
6609 case VENDOR_ELEM_P2P_GO_NEG_CONF:
6610 case VENDOR_ELEM_P2P_INV_REQ:
6611 case VENDOR_ELEM_P2P_INV_RESP:
6612 case VENDOR_ELEM_P2P_ASSOC_REQ:
6613 case VENDOR_ELEM_P2P_ASSOC_RESP:
6614 return wpa_s->p2pdev;
6615 #endif /* CONFIG_P2P */
6622 void wpas_vendor_elem_update(struct wpa_supplicant *wpa_s)
6627 wpa_printf(MSG_DEBUG, "Update vendor elements");
6629 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) {
6630 if (wpa_s->vendor_elem[i]) {
6633 res = os_snprintf(buf, sizeof(buf), "frame[%u]", i);
6634 if (!os_snprintf_error(sizeof(buf), res)) {
6635 wpa_hexdump_buf(MSG_DEBUG, buf,
6636 wpa_s->vendor_elem[i]);
6642 if (wpa_s->parent == wpa_s &&
6643 wpa_s->global->p2p &&
6644 !wpa_s->global->p2p_disabled)
6645 p2p_set_vendor_elems(wpa_s->global->p2p, wpa_s->vendor_elem);
6646 #endif /* CONFIG_P2P */
6650 int wpas_vendor_elem_remove(struct wpa_supplicant *wpa_s, int frame,
6651 const u8 *elem, size_t len)
6655 ie = wpabuf_mhead_u8(wpa_s->vendor_elem[frame]);
6656 end = ie + wpabuf_len(wpa_s->vendor_elem[frame]);
6658 for (; ie + 1 < end; ie += 2 + ie[1]) {
6661 if (os_memcmp(ie, elem, len) != 0)
6664 if (wpabuf_len(wpa_s->vendor_elem[frame]) == len) {
6665 wpabuf_free(wpa_s->vendor_elem[frame]);
6666 wpa_s->vendor_elem[frame] = NULL;
6668 os_memmove(ie, ie + len, end - (ie + len));
6669 wpa_s->vendor_elem[frame]->used -= len;
6671 wpas_vendor_elem_update(wpa_s);
6679 struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
6680 u16 num_modes, enum hostapd_hw_mode mode)
6684 for (i = 0; i < num_modes; i++) {
6685 if (modes[i].mode == mode)
6694 wpa_bss_tmp_disallowed * wpas_get_disallowed_bss(struct wpa_supplicant *wpa_s,
6697 struct wpa_bss_tmp_disallowed *bss;
6699 dl_list_for_each(bss, &wpa_s->bss_tmp_disallowed,
6700 struct wpa_bss_tmp_disallowed, list) {
6701 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) == 0)
6709 void wpa_bss_tmp_disallow(struct wpa_supplicant *wpa_s, const u8 *bssid,
6712 struct wpa_bss_tmp_disallowed *bss;
6713 struct os_reltime until;
6715 os_get_reltime(&until);
6718 bss = wpas_get_disallowed_bss(wpa_s, bssid);
6720 bss->disallowed_until = until;
6724 bss = os_malloc(sizeof(*bss));
6726 wpa_printf(MSG_DEBUG,
6727 "Failed to allocate memory for temp disallow BSS");
6731 bss->disallowed_until = until;
6732 os_memcpy(bss->bssid, bssid, ETH_ALEN);
6733 dl_list_add(&wpa_s->bss_tmp_disallowed, &bss->list);
6737 int wpa_is_bss_tmp_disallowed(struct wpa_supplicant *wpa_s, const u8 *bssid)
6739 struct wpa_bss_tmp_disallowed *bss = NULL, *tmp, *prev;
6740 struct os_reltime now, age;
6742 os_get_reltime(&now);
6744 dl_list_for_each_safe(tmp, prev, &wpa_s->bss_tmp_disallowed,
6745 struct wpa_bss_tmp_disallowed, list) {
6746 if (!os_reltime_before(&now, &tmp->disallowed_until)) {
6747 /* This BSS is not disallowed anymore */
6748 dl_list_del(&tmp->list);
6752 if (os_memcmp(bssid, tmp->bssid, ETH_ALEN) == 0) {
6760 os_reltime_sub(&bss->disallowed_until, &now, &age);
6761 wpa_printf(MSG_DEBUG,
6762 "BSS " MACSTR " disabled for %ld.%0ld seconds",
6763 MAC2STR(bss->bssid), age.sec, age.usec);