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)
2044 if (hostapd_set_freq_params(&vht_freq, mode->mode, freq->freq,
2045 freq->channel, freq->ht_enabled,
2046 vht_freq.vht_enabled,
2047 freq->sec_channel_offset,
2048 chwidth, seg0, seg1, vht_caps) != 0)
2053 wpa_printf(MSG_DEBUG, "IBSS: VHT setup freq cf1 %d, cf2 %d, bw %d",
2054 freq->center_freq1, freq->center_freq2, freq->bandwidth);
2058 static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
2060 struct wpa_connect_work *cwork = work->ctx;
2061 struct wpa_bss *bss = cwork->bss;
2062 struct wpa_ssid *ssid = cwork->ssid;
2063 struct wpa_supplicant *wpa_s = work->wpa_s;
2066 int use_crypt, ret, i, bssid_changed;
2067 int algs = WPA_AUTH_ALG_OPEN;
2068 unsigned int cipher_pairwise, cipher_group;
2069 struct wpa_driver_associate_params params;
2070 int wep_keys_set = 0;
2071 int assoc_failed = 0;
2072 struct wpa_ssid *old_ssid;
2073 u8 prev_bssid[ETH_ALEN];
2074 #ifdef CONFIG_HT_OVERRIDES
2075 struct ieee80211_ht_capabilities htcaps;
2076 struct ieee80211_ht_capabilities htcaps_mask;
2077 #endif /* CONFIG_HT_OVERRIDES */
2078 #ifdef CONFIG_VHT_OVERRIDES
2079 struct ieee80211_vht_capabilities vhtcaps;
2080 struct ieee80211_vht_capabilities vhtcaps_mask;
2081 #endif /* CONFIG_VHT_OVERRIDES */
2083 const u8 *mbo = NULL;
2084 #endif /* CONFIG_MBO */
2087 if (work->started) {
2088 wpa_s->connect_work = NULL;
2090 /* cancel possible auth. timeout */
2091 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s,
2094 wpas_connect_work_free(cwork);
2098 wpa_s->connect_work = work;
2100 if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid) ||
2101 wpas_network_disabled(wpa_s, ssid)) {
2102 wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt");
2103 wpas_connect_work_done(wpa_s);
2107 os_memcpy(prev_bssid, wpa_s->bssid, ETH_ALEN);
2108 os_memset(¶ms, 0, sizeof(params));
2109 wpa_s->reassociate = 0;
2110 wpa_s->eap_expected_failure = 0;
2112 (!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) {
2113 #ifdef CONFIG_IEEE80211R
2114 const u8 *ie, *md = NULL;
2115 #endif /* CONFIG_IEEE80211R */
2116 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
2117 " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
2118 wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
2119 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
2120 os_memset(wpa_s->bssid, 0, ETH_ALEN);
2121 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
2123 wpas_notify_bssid_changed(wpa_s);
2124 #ifdef CONFIG_IEEE80211R
2125 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
2126 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
2128 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
2130 /* Prepare for the next transition */
2131 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
2133 #endif /* CONFIG_IEEE80211R */
2135 } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
2136 wpa_s->conf->ap_scan == 2 &&
2137 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
2138 /* Use ap_scan==1 style network selection to find the network
2140 wpas_connect_work_done(wpa_s);
2141 wpa_s->scan_req = MANUAL_SCAN_REQ;
2142 wpa_s->reassociate = 1;
2143 wpa_supplicant_req_scan(wpa_s, 0, 0);
2145 #endif /* CONFIG_WPS */
2147 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
2148 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2149 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2152 wpa_supplicant_cancel_sched_scan(wpa_s);
2154 wpa_supplicant_cancel_scan(wpa_s);
2156 /* Starting new association, so clear the possibly used WPA IE from the
2157 * previous association. */
2158 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2160 #ifdef IEEE8021X_EAPOL
2161 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2163 if (ssid->non_leap == 0)
2164 algs = WPA_AUTH_ALG_LEAP;
2166 algs |= WPA_AUTH_ALG_LEAP;
2169 #endif /* IEEE8021X_EAPOL */
2170 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs);
2171 if (ssid->auth_alg) {
2172 algs = ssid->auth_alg;
2173 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
2177 if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
2178 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
2179 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
2180 int try_opportunistic;
2181 try_opportunistic = (ssid->proactive_key_caching < 0 ?
2183 ssid->proactive_key_caching) &&
2184 (ssid->proto & WPA_PROTO_RSN);
2185 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
2186 ssid, try_opportunistic) == 0)
2187 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
2188 wpa_ie_len = sizeof(wpa_ie);
2189 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
2190 wpa_ie, &wpa_ie_len)) {
2191 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2192 "key management and encryption suites");
2193 wpas_connect_work_done(wpa_s);
2196 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss &&
2197 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
2199 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
2200 * use non-WPA since the scan results did not indicate that the
2201 * AP is using WPA or WPA2.
2203 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2205 wpa_s->wpa_proto = 0;
2206 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
2207 wpa_ie_len = sizeof(wpa_ie);
2208 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
2209 wpa_ie, &wpa_ie_len)) {
2210 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2211 "key management and encryption suites (no "
2213 wpas_connect_work_done(wpa_s);
2217 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2218 struct wpabuf *wps_ie;
2219 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
2220 if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) {
2221 wpa_ie_len = wpabuf_len(wps_ie);
2222 os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len);
2225 wpabuf_free(wps_ie);
2226 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2227 if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY))
2228 params.wps = WPS_MODE_PRIVACY;
2230 params.wps = WPS_MODE_OPEN;
2231 wpa_s->wpa_proto = 0;
2232 #endif /* CONFIG_WPS */
2234 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2236 wpa_s->wpa_proto = 0;
2240 if (wpa_s->global->p2p) {
2244 pos = wpa_ie + wpa_ie_len;
2245 len = sizeof(wpa_ie) - wpa_ie_len;
2246 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
2252 wpa_s->cross_connect_disallowed = 0;
2255 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
2257 wpa_s->cross_connect_disallowed =
2258 p2p_get_cross_connect_disallowed(p2p);
2260 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross "
2262 wpa_s->cross_connect_disallowed ?
2263 "disallows" : "allows");
2267 os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info));
2268 #endif /* CONFIG_P2P */
2272 mbo = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE);
2276 len = wpas_mbo_supp_op_class_ie(wpa_s, bss->freq,
2277 wpa_ie + wpa_ie_len,
2284 #endif /* CONFIG_MBO */
2287 * Workaround: Add Extended Capabilities element only if the AP
2288 * included this element in Beacon/Probe Response frames. Some older
2289 * APs seem to have interoperability issues if this element is
2290 * included, so while the standard may require us to include the
2291 * element in all cases, it is justifiable to skip it to avoid
2292 * interoperability issues.
2294 if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) {
2297 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
2299 if (ext_capab_len > 0) {
2301 if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN)
2303 os_memmove(pos + ext_capab_len, pos,
2304 wpa_ie_len - (pos - wpa_ie));
2305 wpa_ie_len += ext_capab_len;
2306 os_memcpy(pos, ext_capab, ext_capab_len);
2311 if (is_hs20_network(wpa_s, ssid, bss)) {
2312 struct wpabuf *hs20;
2314 hs20 = wpabuf_alloc(20);
2316 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
2319 wpas_hs20_add_indication(hs20, pps_mo_id);
2320 len = sizeof(wpa_ie) - wpa_ie_len;
2321 if (wpabuf_len(hs20) <= len) {
2322 os_memcpy(wpa_ie + wpa_ie_len,
2323 wpabuf_head(hs20), wpabuf_len(hs20));
2324 wpa_ie_len += wpabuf_len(hs20);
2328 hs20_configure_frame_filters(wpa_s);
2331 #endif /* CONFIG_HS20 */
2333 if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
2334 struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
2337 len = sizeof(wpa_ie) - wpa_ie_len;
2338 if (wpabuf_len(buf) <= len) {
2339 os_memcpy(wpa_ie + wpa_ie_len,
2340 wpabuf_head(buf), wpabuf_len(buf));
2341 wpa_ie_len += wpabuf_len(buf);
2346 if (wpa_s->fst_ies) {
2347 int fst_ies_len = wpabuf_len(wpa_s->fst_ies);
2349 if (wpa_ie_len + fst_ies_len <= sizeof(wpa_ie)) {
2350 os_memcpy(wpa_ie + wpa_ie_len,
2351 wpabuf_head(wpa_s->fst_ies), fst_ies_len);
2352 wpa_ie_len += fst_ies_len;
2355 #endif /* CONFIG_FST */
2361 len = wpas_mbo_ie(wpa_s, wpa_ie + wpa_ie_len,
2362 sizeof(wpa_ie) - wpa_ie_len);
2366 #endif /* CONFIG_MBO */
2368 wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
2370 cipher_pairwise = wpa_s->pairwise_cipher;
2371 cipher_group = wpa_s->group_cipher;
2372 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2373 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2374 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE)
2376 if (wpa_set_wep_keys(wpa_s, ssid)) {
2381 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)
2384 #ifdef IEEE8021X_EAPOL
2385 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2386 if ((ssid->eapol_flags &
2387 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
2388 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 &&
2392 /* Assume that dynamic WEP-104 keys will be used and
2393 * set cipher suites in order for drivers to expect
2395 cipher_pairwise = cipher_group = WPA_CIPHER_WEP104;
2398 #endif /* IEEE8021X_EAPOL */
2400 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2401 /* Set the key before (and later after) association */
2402 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2405 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
2407 params.ssid = bss->ssid;
2408 params.ssid_len = bss->ssid_len;
2409 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2410 wpa_printf(MSG_DEBUG, "Limit connection to BSSID "
2411 MACSTR " freq=%u MHz based on scan results "
2413 MAC2STR(bss->bssid), bss->freq,
2415 params.bssid = bss->bssid;
2416 params.freq.freq = bss->freq;
2418 params.bssid_hint = bss->bssid;
2419 params.freq_hint = bss->freq;
2420 params.pbss = bss_is_pbss(bss);
2422 params.ssid = ssid->ssid;
2423 params.ssid_len = ssid->ssid_len;
2424 params.pbss = (ssid->pbss != 2) ? ssid->pbss : 0;
2427 if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set &&
2428 wpa_s->conf->ap_scan == 2) {
2429 params.bssid = ssid->bssid;
2430 params.fixed_bssid = 1;
2433 /* Initial frequency for IBSS/mesh */
2434 if ((ssid->mode == WPAS_MODE_IBSS || ssid->mode == WPAS_MODE_MESH) &&
2435 ssid->frequency > 0 && params.freq.freq == 0)
2436 ibss_mesh_setup_freq(wpa_s, ssid, ¶ms.freq);
2438 if (ssid->mode == WPAS_MODE_IBSS) {
2439 params.fixed_freq = ssid->fixed_freq;
2440 if (ssid->beacon_int)
2441 params.beacon_int = ssid->beacon_int;
2443 params.beacon_int = wpa_s->conf->beacon_int;
2446 params.wpa_ie = wpa_ie;
2447 params.wpa_ie_len = wpa_ie_len;
2448 params.pairwise_suite = cipher_pairwise;
2449 params.group_suite = cipher_group;
2450 params.key_mgmt_suite = wpa_s->key_mgmt;
2451 params.wpa_proto = wpa_s->wpa_proto;
2452 params.auth_alg = algs;
2453 params.mode = ssid->mode;
2454 params.bg_scan_period = ssid->bg_scan_period;
2455 for (i = 0; i < NUM_WEP_KEYS; i++) {
2456 if (ssid->wep_key_len[i])
2457 params.wep_key[i] = ssid->wep_key[i];
2458 params.wep_key_len[i] = ssid->wep_key_len[i];
2460 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
2462 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2463 (params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2464 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
2465 params.passphrase = ssid->passphrase;
2467 params.psk = ssid->psk;
2470 if (wpa_s->conf->key_mgmt_offload) {
2471 if (params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
2472 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
2473 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
2474 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
2475 params.req_key_mgmt_offload =
2476 ssid->proactive_key_caching < 0 ?
2477 wpa_s->conf->okc : ssid->proactive_key_caching;
2479 params.req_key_mgmt_offload = 1;
2481 if ((params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2482 params.key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
2483 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK) &&
2485 params.psk = ssid->psk;
2488 params.drop_unencrypted = use_crypt;
2490 #ifdef CONFIG_IEEE80211W
2491 params.mgmt_frame_protection = wpas_get_ssid_pmf(wpa_s, ssid);
2492 if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) {
2493 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
2494 struct wpa_ie_data ie;
2495 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 &&
2497 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
2498 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports "
2499 "MFP: require MFP");
2500 params.mgmt_frame_protection =
2501 MGMT_FRAME_PROTECTION_REQUIRED;
2504 #endif /* CONFIG_IEEE80211W */
2506 params.p2p = ssid->p2p_group;
2508 if (wpa_s->p2pdev->set_sta_uapsd)
2509 params.uapsd = wpa_s->p2pdev->sta_uapsd;
2513 #ifdef CONFIG_HT_OVERRIDES
2514 os_memset(&htcaps, 0, sizeof(htcaps));
2515 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
2516 params.htcaps = (u8 *) &htcaps;
2517 params.htcaps_mask = (u8 *) &htcaps_mask;
2518 wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms);
2519 #endif /* CONFIG_HT_OVERRIDES */
2520 #ifdef CONFIG_VHT_OVERRIDES
2521 os_memset(&vhtcaps, 0, sizeof(vhtcaps));
2522 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
2523 params.vhtcaps = &vhtcaps;
2524 params.vhtcaps_mask = &vhtcaps_mask;
2525 wpa_supplicant_apply_vht_overrides(wpa_s, ssid, ¶ms);
2526 #endif /* CONFIG_VHT_OVERRIDES */
2530 * If multi-channel concurrency is not supported, check for any
2531 * frequency conflict. In case of any frequency conflict, remove the
2532 * least prioritized connection.
2534 if (wpa_s->num_multichan_concurrent < 2) {
2536 num = get_shared_radio_freqs(wpa_s, &freq, 1);
2537 if (num > 0 && freq > 0 && freq != params.freq.freq) {
2538 wpa_printf(MSG_DEBUG,
2539 "Assoc conflicting freq found (%d != %d)",
2540 freq, params.freq.freq);
2541 if (wpas_p2p_handle_frequency_conflicts(
2542 wpa_s, params.freq.freq, ssid) < 0) {
2543 wpas_connect_work_done(wpa_s);
2548 #endif /* CONFIG_P2P */
2550 if (wpa_s->reassoc_same_ess && !is_zero_ether_addr(prev_bssid) &&
2551 wpa_s->current_ssid)
2552 params.prev_bssid = prev_bssid;
2554 ret = wpa_drv_associate(wpa_s, ¶ms);
2556 wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
2558 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) {
2560 * The driver is known to mean what is saying, so we
2561 * can stop right here; the association will not
2564 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
2565 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2566 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2569 /* try to continue anyway; new association will be tried again
2574 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2575 /* Set the key after the association just in case association
2576 * cleared the previously configured key. */
2577 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2578 /* No need to timeout authentication since there is no key
2580 wpa_supplicant_cancel_auth_timeout(wpa_s);
2581 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2582 #ifdef CONFIG_IBSS_RSN
2583 } else if (ssid->mode == WPAS_MODE_IBSS &&
2584 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2585 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
2587 * RSN IBSS authentication is per-STA and we can disable the
2588 * per-BSSID authentication.
2590 wpa_supplicant_cancel_auth_timeout(wpa_s);
2591 #endif /* CONFIG_IBSS_RSN */
2593 /* Timeout for IEEE 802.11 authentication and association */
2597 /* give IBSS a bit more time */
2598 timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5;
2599 } else if (wpa_s->conf->ap_scan == 1) {
2600 /* give IBSS a bit more time */
2601 timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10;
2603 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
2607 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) {
2608 /* Set static WEP keys again */
2609 wpa_set_wep_keys(wpa_s, ssid);
2612 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) {
2614 * Do not allow EAP session resumption between different
2615 * network configurations.
2617 eapol_sm_invalidate_cached_session(wpa_s->eapol);
2619 old_ssid = wpa_s->current_ssid;
2620 wpa_s->current_ssid = ssid;
2622 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2623 wpa_s->current_bss = bss;
2625 hs20_configure_frame_filters(wpa_s);
2626 #endif /* CONFIG_HS20 */
2629 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
2630 wpa_supplicant_initiate_eapol(wpa_s);
2631 if (old_ssid != wpa_s->current_ssid)
2632 wpas_notify_network_changed(wpa_s);
2636 static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s,
2639 struct wpa_ssid *old_ssid;
2641 wpas_connect_work_done(wpa_s);
2642 wpa_clear_keys(wpa_s, addr);
2643 old_ssid = wpa_s->current_ssid;
2644 wpa_supplicant_mark_disassoc(wpa_s);
2645 wpa_sm_set_config(wpa_s->wpa, NULL);
2646 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2647 if (old_ssid != wpa_s->current_ssid)
2648 wpas_notify_network_changed(wpa_s);
2649 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
2654 * wpa_supplicant_deauthenticate - Deauthenticate the current connection
2655 * @wpa_s: Pointer to wpa_supplicant data
2656 * @reason_code: IEEE 802.11 reason code for the deauthenticate frame
2658 * This function is used to request %wpa_supplicant to deauthenticate from the
2661 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
2665 union wpa_event_data event;
2668 wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR
2669 " pending_bssid=" MACSTR " reason=%d state=%s",
2670 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
2671 reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state));
2673 if (!is_zero_ether_addr(wpa_s->bssid))
2674 addr = wpa_s->bssid;
2675 else if (!is_zero_ether_addr(wpa_s->pending_bssid) &&
2676 (wpa_s->wpa_state == WPA_AUTHENTICATING ||
2677 wpa_s->wpa_state == WPA_ASSOCIATING))
2678 addr = wpa_s->pending_bssid;
2679 else if (wpa_s->wpa_state == WPA_ASSOCIATING) {
2681 * When using driver-based BSS selection, we may not know the
2682 * BSSID with which we are currently trying to associate. We
2683 * need to notify the driver of this disconnection even in such
2684 * a case, so use the all zeros address here.
2686 addr = wpa_s->bssid;
2691 wpa_tdls_teardown_peers(wpa_s->wpa);
2692 #endif /* CONFIG_TDLS */
2696 wpa_msg(wpa_s, MSG_INFO, MESH_GROUP_REMOVED "%s",
2698 wpa_supplicant_leave_mesh(wpa_s);
2700 #endif /* CONFIG_MESH */
2703 wpa_drv_deauthenticate(wpa_s, addr, reason_code);
2704 os_memset(&event, 0, sizeof(event));
2705 event.deauth_info.reason_code = (u16) reason_code;
2706 event.deauth_info.locally_generated = 1;
2707 wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event);
2712 wpa_supplicant_clear_connection(wpa_s, addr);
2715 static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s,
2716 struct wpa_ssid *ssid)
2718 if (!ssid || !ssid->disabled || ssid->disabled == 2)
2722 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2723 wpas_notify_network_enabled_changed(wpa_s, ssid);
2726 * Try to reassociate since there is no current configuration and a new
2727 * network was made available.
2729 if (!wpa_s->current_ssid && !wpa_s->disconnected)
2730 wpa_s->reassociate = 1;
2735 * wpa_supplicant_enable_network - Mark a configured network as enabled
2736 * @wpa_s: wpa_supplicant structure for a network interface
2737 * @ssid: wpa_ssid structure for a configured network or %NULL
2739 * Enables the specified network or all networks if no network specified.
2741 void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
2742 struct wpa_ssid *ssid)
2745 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
2746 wpa_supplicant_enable_one_network(wpa_s, ssid);
2748 wpa_supplicant_enable_one_network(wpa_s, ssid);
2750 if (wpa_s->reassociate && !wpa_s->disconnected &&
2751 (!wpa_s->current_ssid ||
2752 wpa_s->wpa_state == WPA_DISCONNECTED ||
2753 wpa_s->wpa_state == WPA_SCANNING)) {
2754 if (wpa_s->sched_scanning) {
2755 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add "
2756 "new network to scan filters");
2757 wpa_supplicant_cancel_sched_scan(wpa_s);
2760 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
2761 wpa_s->scan_req = NORMAL_SCAN_REQ;
2762 wpa_supplicant_req_scan(wpa_s, 0, 0);
2769 * wpa_supplicant_disable_network - Mark a configured network as disabled
2770 * @wpa_s: wpa_supplicant structure for a network interface
2771 * @ssid: wpa_ssid structure for a configured network or %NULL
2773 * Disables the specified network or all networks if no network specified.
2775 void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
2776 struct wpa_ssid *ssid)
2778 struct wpa_ssid *other_ssid;
2782 if (wpa_s->sched_scanning)
2783 wpa_supplicant_cancel_sched_scan(wpa_s);
2785 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2786 other_ssid = other_ssid->next) {
2787 was_disabled = other_ssid->disabled;
2788 if (was_disabled == 2)
2789 continue; /* do not change persistent P2P group
2792 other_ssid->disabled = 1;
2794 if (was_disabled != other_ssid->disabled)
2795 wpas_notify_network_enabled_changed(
2798 if (wpa_s->current_ssid)
2799 wpa_supplicant_deauthenticate(
2800 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2801 } else if (ssid->disabled != 2) {
2802 if (ssid == wpa_s->current_ssid)
2803 wpa_supplicant_deauthenticate(
2804 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2806 was_disabled = ssid->disabled;
2810 if (was_disabled != ssid->disabled) {
2811 wpas_notify_network_enabled_changed(wpa_s, ssid);
2812 if (wpa_s->sched_scanning) {
2813 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan "
2814 "to remove network from filters");
2815 wpa_supplicant_cancel_sched_scan(wpa_s);
2816 wpa_supplicant_req_scan(wpa_s, 0, 0);
2824 * wpa_supplicant_select_network - Attempt association with a network
2825 * @wpa_s: wpa_supplicant structure for a network interface
2826 * @ssid: wpa_ssid structure for a configured network or %NULL for any network
2828 void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
2829 struct wpa_ssid *ssid)
2832 struct wpa_ssid *other_ssid;
2833 int disconnected = 0;
2835 if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) {
2836 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2837 wpa_s->own_disconnect_req = 1;
2838 wpa_supplicant_deauthenticate(
2839 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2844 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2847 * Mark all other networks disabled or mark all networks enabled if no
2848 * network specified.
2850 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2851 other_ssid = other_ssid->next) {
2852 int was_disabled = other_ssid->disabled;
2853 if (was_disabled == 2)
2854 continue; /* do not change persistent P2P group data */
2856 other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0;
2857 if (was_disabled && !other_ssid->disabled)
2858 wpas_clear_temp_disabled(wpa_s, other_ssid, 0);
2860 if (was_disabled != other_ssid->disabled)
2861 wpas_notify_network_enabled_changed(wpa_s, other_ssid);
2864 if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid &&
2865 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2866 /* We are already associated with the selected network */
2867 wpa_printf(MSG_DEBUG, "Already associated with the "
2868 "selected network - do nothing");
2873 wpa_s->current_ssid = ssid;
2874 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2875 wpa_s->connect_without_scan =
2876 (ssid->mode == WPAS_MODE_MESH) ? ssid : NULL;
2879 * Don't optimize next scan freqs since a new ESS has been
2882 os_free(wpa_s->next_scan_freqs);
2883 wpa_s->next_scan_freqs = NULL;
2885 wpa_s->connect_without_scan = NULL;
2888 wpa_s->disconnected = 0;
2889 wpa_s->reassociate = 1;
2891 if (wpa_s->connect_without_scan ||
2892 wpa_supplicant_fast_associate(wpa_s) != 1) {
2893 wpa_s->scan_req = NORMAL_SCAN_REQ;
2894 wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0);
2898 wpas_notify_network_selected(wpa_s, ssid);
2903 * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path
2904 * @wpa_s: wpa_supplicant structure for a network interface
2905 * @pkcs11_engine_path: PKCS #11 engine path or NULL
2906 * @pkcs11_module_path: PKCS #11 module path or NULL
2907 * Returns: 0 on success; -1 on failure
2909 * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid
2910 * path. If resetting the EAPOL state machine with the new PKCS #11 engine and
2911 * module path fails the paths will be reset to the default value (NULL).
2913 int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant *wpa_s,
2914 const char *pkcs11_engine_path,
2915 const char *pkcs11_module_path)
2917 char *pkcs11_engine_path_copy = NULL;
2918 char *pkcs11_module_path_copy = NULL;
2920 if (pkcs11_engine_path != NULL) {
2921 pkcs11_engine_path_copy = os_strdup(pkcs11_engine_path);
2922 if (pkcs11_engine_path_copy == NULL)
2925 if (pkcs11_module_path != NULL) {
2926 pkcs11_module_path_copy = os_strdup(pkcs11_module_path);
2927 if (pkcs11_module_path_copy == NULL) {
2928 os_free(pkcs11_engine_path_copy);
2933 os_free(wpa_s->conf->pkcs11_engine_path);
2934 os_free(wpa_s->conf->pkcs11_module_path);
2935 wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path_copy;
2936 wpa_s->conf->pkcs11_module_path = pkcs11_module_path_copy;
2938 wpa_sm_set_eapol(wpa_s->wpa, NULL);
2939 eapol_sm_deinit(wpa_s->eapol);
2940 wpa_s->eapol = NULL;
2941 if (wpa_supplicant_init_eapol(wpa_s)) {
2942 /* Error -> Reset paths to the default value (NULL) once. */
2943 if (pkcs11_engine_path != NULL && pkcs11_module_path != NULL)
2944 wpas_set_pkcs11_engine_and_module_path(wpa_s, NULL,
2949 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
2956 * wpa_supplicant_set_ap_scan - Set AP scan mode for interface
2957 * @wpa_s: wpa_supplicant structure for a network interface
2958 * @ap_scan: AP scan mode
2959 * Returns: 0 if succeed or -1 if ap_scan has an invalid value
2962 int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan)
2967 if (ap_scan < 0 || ap_scan > 2)
2970 if (ap_scan == 2 && os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
2971 wpa_printf(MSG_INFO,
2972 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
2976 if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan &&
2977 wpa_s->wpa_state >= WPA_ASSOCIATING &&
2978 wpa_s->wpa_state < WPA_COMPLETED) {
2979 wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while "
2980 "associating", wpa_s->conf->ap_scan, ap_scan);
2983 #endif /* ANDROID */
2985 old_ap_scan = wpa_s->conf->ap_scan;
2986 wpa_s->conf->ap_scan = ap_scan;
2988 if (old_ap_scan != wpa_s->conf->ap_scan)
2989 wpas_notify_ap_scan_changed(wpa_s);
2996 * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age
2997 * @wpa_s: wpa_supplicant structure for a network interface
2998 * @expire_age: Expiration age in seconds
2999 * Returns: 0 if succeed or -1 if expire_age has an invalid value
3002 int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s,
3003 unsigned int bss_expire_age)
3005 if (bss_expire_age < 10) {
3006 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u",
3010 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec",
3012 wpa_s->conf->bss_expiration_age = bss_expire_age;
3019 * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count
3020 * @wpa_s: wpa_supplicant structure for a network interface
3021 * @expire_count: number of scans after which an unseen BSS is reclaimed
3022 * Returns: 0 if succeed or -1 if expire_count has an invalid value
3025 int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s,
3026 unsigned int bss_expire_count)
3028 if (bss_expire_count < 1) {
3029 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u",
3033 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u",
3035 wpa_s->conf->bss_expiration_scan_count = bss_expire_count;
3042 * wpa_supplicant_set_scan_interval - Set scan interval
3043 * @wpa_s: wpa_supplicant structure for a network interface
3044 * @scan_interval: scan interval in seconds
3045 * Returns: 0 if succeed or -1 if scan_interval has an invalid value
3048 int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s,
3051 if (scan_interval < 0) {
3052 wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d",
3056 wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec",
3058 wpa_supplicant_update_scan_int(wpa_s, scan_interval);
3065 * wpa_supplicant_set_debug_params - Set global debug params
3066 * @global: wpa_global structure
3067 * @debug_level: debug level
3068 * @debug_timestamp: determines if show timestamp in debug data
3069 * @debug_show_keys: determines if show keys in debug data
3070 * Returns: 0 if succeed or -1 if debug_level has wrong value
3072 int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level,
3073 int debug_timestamp, int debug_show_keys)
3076 int old_level, old_timestamp, old_show_keys;
3078 /* check for allowed debuglevels */
3079 if (debug_level != MSG_EXCESSIVE &&
3080 debug_level != MSG_MSGDUMP &&
3081 debug_level != MSG_DEBUG &&
3082 debug_level != MSG_INFO &&
3083 debug_level != MSG_WARNING &&
3084 debug_level != MSG_ERROR)
3087 old_level = wpa_debug_level;
3088 old_timestamp = wpa_debug_timestamp;
3089 old_show_keys = wpa_debug_show_keys;
3091 wpa_debug_level = debug_level;
3092 wpa_debug_timestamp = debug_timestamp ? 1 : 0;
3093 wpa_debug_show_keys = debug_show_keys ? 1 : 0;
3095 if (wpa_debug_level != old_level)
3096 wpas_notify_debug_level_changed(global);
3097 if (wpa_debug_timestamp != old_timestamp)
3098 wpas_notify_debug_timestamp_changed(global);
3099 if (wpa_debug_show_keys != old_show_keys)
3100 wpas_notify_debug_show_keys_changed(global);
3107 * wpa_supplicant_get_ssid - Get a pointer to the current network structure
3108 * @wpa_s: Pointer to wpa_supplicant data
3109 * Returns: A pointer to the current network structure or %NULL on failure
3111 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
3113 struct wpa_ssid *entry;
3114 u8 ssid[SSID_MAX_LEN];
3120 res = wpa_drv_get_ssid(wpa_s, ssid);
3122 wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from "
3128 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
3129 wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from "
3134 wired = wpa_s->conf->ap_scan == 0 &&
3135 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED);
3137 entry = wpa_s->conf->ssid;
3139 if (!wpas_network_disabled(wpa_s, entry) &&
3140 ((ssid_len == entry->ssid_len &&
3141 os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) &&
3142 (!entry->bssid_set ||
3143 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
3146 if (!wpas_network_disabled(wpa_s, entry) &&
3147 (entry->key_mgmt & WPA_KEY_MGMT_WPS) &&
3148 (entry->ssid == NULL || entry->ssid_len == 0) &&
3149 (!entry->bssid_set ||
3150 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
3152 #endif /* CONFIG_WPS */
3154 if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set &&
3155 entry->ssid_len == 0 &&
3156 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)
3159 entry = entry->next;
3166 static int select_driver(struct wpa_supplicant *wpa_s, int i)
3168 struct wpa_global *global = wpa_s->global;
3170 if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) {
3171 global->drv_priv[i] = wpa_drivers[i]->global_init(global);
3172 if (global->drv_priv[i] == NULL) {
3173 wpa_printf(MSG_ERROR, "Failed to initialize driver "
3174 "'%s'", wpa_drivers[i]->name);
3179 wpa_s->driver = wpa_drivers[i];
3180 wpa_s->global_drv_priv = global->drv_priv[i];
3186 static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s,
3191 const char *pos, *driver = name;
3196 if (wpa_drivers[0] == NULL) {
3197 wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into "
3203 /* default to first driver in the list */
3204 return select_driver(wpa_s, 0);
3208 pos = os_strchr(driver, ',');
3212 len = os_strlen(driver);
3214 for (i = 0; wpa_drivers[i]; i++) {
3215 if (os_strlen(wpa_drivers[i]->name) == len &&
3216 os_strncmp(driver, wpa_drivers[i]->name, len) ==
3218 /* First driver that succeeds wins */
3219 if (select_driver(wpa_s, i) == 0)
3227 wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name);
3233 * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant
3234 * @ctx: Context pointer (wpa_s); this is the ctx variable registered
3235 * with struct wpa_driver_ops::init()
3236 * @src_addr: Source address of the EAPOL frame
3237 * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header)
3238 * @len: Length of the EAPOL data
3240 * This function is called for each received EAPOL frame. Most driver
3241 * interfaces rely on more generic OS mechanism for receiving frames through
3242 * l2_packet, but if such a mechanism is not available, the driver wrapper may
3243 * take care of received EAPOL frames and deliver them to the core supplicant
3244 * code by calling this function.
3246 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
3247 const u8 *buf, size_t len)
3249 struct wpa_supplicant *wpa_s = ctx;
3251 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr));
3252 wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len);
3254 #ifdef CONFIG_PEERKEY
3255 if (wpa_s->wpa_state > WPA_ASSOCIATED && wpa_s->current_ssid &&
3256 wpa_s->current_ssid->peerkey &&
3257 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
3258 wpa_sm_rx_eapol_peerkey(wpa_s->wpa, src_addr, buf, len) == 1) {
3259 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: Processed PeerKey EAPOL-Key");
3262 #endif /* CONFIG_PEERKEY */
3264 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3265 (wpa_s->last_eapol_matches_bssid &&
3268 #endif /* CONFIG_AP */
3269 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) {
3271 * There is possible race condition between receiving the
3272 * association event and the EAPOL frame since they are coming
3273 * through different paths from the driver. In order to avoid
3274 * issues in trying to process the EAPOL frame before receiving
3275 * association information, lets queue it for processing until
3276 * the association event is received. This may also be needed in
3277 * driver-based roaming case, so also use src_addr != BSSID as a
3278 * trigger if we have previously confirmed that the
3279 * Authenticator uses BSSID as the src_addr (which is not the
3280 * case with wired IEEE 802.1X).
3282 wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing "
3283 "of received EAPOL frame (state=%s bssid=" MACSTR ")",
3284 wpa_supplicant_state_txt(wpa_s->wpa_state),
3285 MAC2STR(wpa_s->bssid));
3286 wpabuf_free(wpa_s->pending_eapol_rx);
3287 wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len);
3288 if (wpa_s->pending_eapol_rx) {
3289 os_get_reltime(&wpa_s->pending_eapol_rx_time);
3290 os_memcpy(wpa_s->pending_eapol_rx_src, src_addr,
3296 wpa_s->last_eapol_matches_bssid =
3297 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0;
3300 if (wpa_s->ap_iface) {
3301 wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len);
3304 #endif /* CONFIG_AP */
3306 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
3307 wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since "
3308 "no key management is configured");
3312 if (wpa_s->eapol_received == 0 &&
3313 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) ||
3314 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3315 wpa_s->wpa_state != WPA_COMPLETED) &&
3316 (wpa_s->current_ssid == NULL ||
3317 wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) {
3318 /* Timeout for completing IEEE 802.1X and WPA authentication */
3321 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3322 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA ||
3323 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
3324 /* Use longer timeout for IEEE 802.1X/EAP */
3329 if (wpa_s->current_ssid && wpa_s->current_bss &&
3330 (wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
3331 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
3333 * Use shorter timeout if going through WPS AP iteration
3334 * for PIN config method with an AP that does not
3335 * advertise Selected Registrar.
3337 struct wpabuf *wps_ie;
3339 wps_ie = wpa_bss_get_vendor_ie_multi(
3340 wpa_s->current_bss, WPS_IE_VENDOR_TYPE);
3342 !wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1))
3344 wpabuf_free(wps_ie);
3346 #endif /* CONFIG_WPS */
3348 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
3350 wpa_s->eapol_received++;
3352 if (wpa_s->countermeasures) {
3353 wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped "
3358 #ifdef CONFIG_IBSS_RSN
3359 if (wpa_s->current_ssid &&
3360 wpa_s->current_ssid->mode == WPAS_MODE_IBSS) {
3361 ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len);
3364 #endif /* CONFIG_IBSS_RSN */
3366 /* Source address of the incoming EAPOL frame could be compared to the
3367 * current BSSID. However, it is possible that a centralized
3368 * Authenticator could be using another MAC address than the BSSID of
3369 * an AP, so just allow any address to be used for now. The replies are
3370 * still sent to the current BSSID (if available), though. */
3372 os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN);
3373 if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) &&
3374 eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0)
3376 wpa_drv_poll(wpa_s);
3377 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
3378 wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len);
3379 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3381 * Set portValid = TRUE here since we are going to skip 4-way
3382 * handshake processing which would normally set portValid. We
3383 * need this to allow the EAPOL state machines to be completed
3384 * without going through EAPOL-Key handshake.
3386 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3391 int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s)
3393 if ((!wpa_s->p2p_mgmt ||
3394 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
3395 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) {
3396 l2_packet_deinit(wpa_s->l2);
3397 wpa_s->l2 = l2_packet_init(wpa_s->ifname,
3398 wpa_drv_get_mac_addr(wpa_s),
3400 wpa_supplicant_rx_eapol, wpa_s, 0);
3401 if (wpa_s->l2 == NULL)
3404 const u8 *addr = wpa_drv_get_mac_addr(wpa_s);
3406 os_memcpy(wpa_s->own_addr, addr, ETH_ALEN);
3409 if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) {
3410 wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address");
3414 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3420 static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr,
3421 const u8 *buf, size_t len)
3423 struct wpa_supplicant *wpa_s = ctx;
3424 const struct l2_ethhdr *eth;
3426 if (len < sizeof(*eth))
3428 eth = (const struct l2_ethhdr *) buf;
3430 if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 &&
3431 !(eth->h_dest[0] & 0x01)) {
3432 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3433 " (bridge - not for this interface - ignore)",
3434 MAC2STR(src_addr), MAC2STR(eth->h_dest));
3438 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3439 " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest));
3440 wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth),
3441 len - sizeof(*eth));
3446 * wpa_supplicant_driver_init - Initialize driver interface parameters
3447 * @wpa_s: Pointer to wpa_supplicant data
3448 * Returns: 0 on success, -1 on failure
3450 * This function is called to initialize driver interface parameters.
3451 * wpa_drv_init() must have been called before this function to initialize the
3454 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
3456 static int interface_count = 0;
3458 if (wpa_supplicant_update_mac_addr(wpa_s) < 0)
3461 wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR,
3462 MAC2STR(wpa_s->own_addr));
3463 os_memcpy(wpa_s->perm_addr, wpa_s->own_addr, ETH_ALEN);
3464 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3466 if (wpa_s->bridge_ifname[0]) {
3467 wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge "
3468 "interface '%s'", wpa_s->bridge_ifname);
3469 wpa_s->l2_br = l2_packet_init_bridge(
3470 wpa_s->bridge_ifname, wpa_s->ifname, wpa_s->own_addr,
3471 ETH_P_EAPOL, wpa_supplicant_rx_eapol_bridge, wpa_s, 1);
3472 if (wpa_s->l2_br == NULL) {
3473 wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet "
3474 "connection for the bridge interface '%s'",
3475 wpa_s->bridge_ifname);
3480 if (wpa_s->conf->ap_scan == 2 &&
3481 os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
3482 wpa_printf(MSG_INFO,
3483 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
3486 wpa_clear_keys(wpa_s, NULL);
3488 /* Make sure that TKIP countermeasures are not left enabled (could
3489 * happen if wpa_supplicant is killed during countermeasures. */
3490 wpa_drv_set_countermeasures(wpa_s, 0);
3492 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver");
3493 wpa_drv_flush_pmkid(wpa_s);
3495 wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
3496 wpa_s->prev_scan_wildcard = 0;
3498 if (wpa_supplicant_enabled_networks(wpa_s)) {
3499 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3500 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3501 interface_count = 0;
3504 if (!wpa_s->p2p_mgmt &&
3505 wpa_supplicant_delayed_sched_scan(wpa_s,
3506 interface_count % 3,
3508 wpa_supplicant_req_scan(wpa_s, interface_count % 3,
3510 #endif /* ANDROID */
3513 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
3519 static int wpa_supplicant_daemon(const char *pid_file)
3521 wpa_printf(MSG_DEBUG, "Daemonize..");
3522 return os_daemonize(pid_file);
3526 static struct wpa_supplicant *
3527 wpa_supplicant_alloc(struct wpa_supplicant *parent)
3529 struct wpa_supplicant *wpa_s;
3531 wpa_s = os_zalloc(sizeof(*wpa_s));
3534 wpa_s->scan_req = INITIAL_SCAN_REQ;
3535 wpa_s->scan_interval = 5;
3536 wpa_s->new_connection = 1;
3537 wpa_s->parent = parent ? parent : wpa_s;
3538 wpa_s->p2pdev = wpa_s->parent;
3539 wpa_s->sched_scanning = 0;
3541 dl_list_init(&wpa_s->bss_tmp_disallowed);
3547 #ifdef CONFIG_HT_OVERRIDES
3549 static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s,
3550 struct ieee80211_ht_capabilities *htcaps,
3551 struct ieee80211_ht_capabilities *htcaps_mask,
3554 /* parse ht_mcs into hex array */
3556 const char *tmp = ht_mcs;
3559 /* If ht_mcs is null, do not set anything */
3563 /* This is what we are setting in the kernel */
3564 os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN);
3566 wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs);
3568 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3570 long v = strtol(tmp, &end, 16);
3572 wpa_msg(wpa_s, MSG_DEBUG,
3573 "htcap value[%i]: %ld end: %p tmp: %p",
3578 htcaps->supported_mcs_set[i] = v;
3581 wpa_msg(wpa_s, MSG_ERROR,
3582 "Failed to parse ht-mcs: %s, error: %s\n",
3583 ht_mcs, strerror(errno));
3589 * If we were able to parse any values, then set mask for the MCS set.
3592 os_memset(&htcaps_mask->supported_mcs_set, 0xff,
3593 IEEE80211_HT_MCS_MASK_LEN - 1);
3594 /* skip the 3 reserved bits */
3595 htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] =
3603 static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s,
3604 struct ieee80211_ht_capabilities *htcaps,
3605 struct ieee80211_ht_capabilities *htcaps_mask,
3610 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled);
3615 msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE);
3616 htcaps_mask->ht_capabilities_info |= msk;
3618 htcaps->ht_capabilities_info &= msk;
3620 htcaps->ht_capabilities_info |= msk;
3626 static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s,
3627 struct ieee80211_ht_capabilities *htcaps,
3628 struct ieee80211_ht_capabilities *htcaps_mask,
3631 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor);
3636 if (factor < 0 || factor > 3) {
3637 wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. "
3638 "Must be 0-3 or -1", factor);
3642 htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */
3643 htcaps->a_mpdu_params &= ~0x3;
3644 htcaps->a_mpdu_params |= factor & 0x3;
3650 static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s,
3651 struct ieee80211_ht_capabilities *htcaps,
3652 struct ieee80211_ht_capabilities *htcaps_mask,
3655 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density);
3660 if (density < 0 || density > 7) {
3661 wpa_msg(wpa_s, MSG_ERROR,
3662 "ampdu_density: %d out of range. Must be 0-7 or -1.",
3667 htcaps_mask->a_mpdu_params |= 0x1C;
3668 htcaps->a_mpdu_params &= ~(0x1C);
3669 htcaps->a_mpdu_params |= (density << 2) & 0x1C;
3675 static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s,
3676 struct ieee80211_ht_capabilities *htcaps,
3677 struct ieee80211_ht_capabilities *htcaps_mask,
3680 /* Masking these out disables HT40 */
3681 le16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET |
3682 HT_CAP_INFO_SHORT_GI40MHZ);
3684 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled);
3687 htcaps->ht_capabilities_info &= ~msk;
3689 htcaps->ht_capabilities_info |= msk;
3691 htcaps_mask->ht_capabilities_info |= msk;
3697 static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s,
3698 struct ieee80211_ht_capabilities *htcaps,
3699 struct ieee80211_ht_capabilities *htcaps_mask,
3702 /* Masking these out disables SGI */
3703 le16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ |
3704 HT_CAP_INFO_SHORT_GI40MHZ);
3706 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled);
3709 htcaps->ht_capabilities_info &= ~msk;
3711 htcaps->ht_capabilities_info |= msk;
3713 htcaps_mask->ht_capabilities_info |= msk;
3719 static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s,
3720 struct ieee80211_ht_capabilities *htcaps,
3721 struct ieee80211_ht_capabilities *htcaps_mask,
3724 /* Masking these out disables LDPC */
3725 le16 msk = host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP);
3727 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ldpc: %d", disabled);
3730 htcaps->ht_capabilities_info &= ~msk;
3732 htcaps->ht_capabilities_info |= msk;
3734 htcaps_mask->ht_capabilities_info |= msk;
3740 void wpa_supplicant_apply_ht_overrides(
3741 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3742 struct wpa_driver_associate_params *params)
3744 struct ieee80211_ht_capabilities *htcaps;
3745 struct ieee80211_ht_capabilities *htcaps_mask;
3750 params->disable_ht = ssid->disable_ht;
3751 if (!params->htcaps || !params->htcaps_mask)
3754 htcaps = (struct ieee80211_ht_capabilities *) params->htcaps;
3755 htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask;
3756 wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs);
3757 wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask,
3758 ssid->disable_max_amsdu);
3759 wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor);
3760 wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density);
3761 wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40);
3762 wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi);
3763 wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc);
3765 if (ssid->ht40_intolerant) {
3766 le16 bit = host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT);
3767 htcaps->ht_capabilities_info |= bit;
3768 htcaps_mask->ht_capabilities_info |= bit;
3772 #endif /* CONFIG_HT_OVERRIDES */
3775 #ifdef CONFIG_VHT_OVERRIDES
3776 void wpa_supplicant_apply_vht_overrides(
3777 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3778 struct wpa_driver_associate_params *params)
3780 struct ieee80211_vht_capabilities *vhtcaps;
3781 struct ieee80211_vht_capabilities *vhtcaps_mask;
3786 params->disable_vht = ssid->disable_vht;
3788 vhtcaps = (void *) params->vhtcaps;
3789 vhtcaps_mask = (void *) params->vhtcaps_mask;
3791 if (!vhtcaps || !vhtcaps_mask)
3794 vhtcaps->vht_capabilities_info = ssid->vht_capa;
3795 vhtcaps_mask->vht_capabilities_info = ssid->vht_capa_mask;
3797 #ifdef CONFIG_HT_OVERRIDES
3798 /* if max ampdu is <= 3, we have to make the HT cap the same */
3799 if (ssid->vht_capa_mask & VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) {
3802 max_ampdu = (ssid->vht_capa &
3803 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) >>
3804 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX_SHIFT;
3806 max_ampdu = max_ampdu < 3 ? max_ampdu : 3;
3807 wpa_set_ampdu_factor(wpa_s,
3808 (void *) params->htcaps,
3809 (void *) params->htcaps_mask,
3812 #endif /* CONFIG_HT_OVERRIDES */
3814 #define OVERRIDE_MCS(i) \
3815 if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \
3816 vhtcaps_mask->vht_supported_mcs_set.tx_map |= \
3818 vhtcaps->vht_supported_mcs_set.tx_map |= \
3819 ssid->vht_tx_mcs_nss_ ##i << 2 * (i - 1); \
3821 if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \
3822 vhtcaps_mask->vht_supported_mcs_set.rx_map |= \
3824 vhtcaps->vht_supported_mcs_set.rx_map |= \
3825 ssid->vht_rx_mcs_nss_ ##i << 2 * (i - 1); \
3837 #endif /* CONFIG_VHT_OVERRIDES */
3840 static int pcsc_reader_init(struct wpa_supplicant *wpa_s)
3845 if (!wpa_s->conf->pcsc_reader)
3848 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
3852 if (wpa_s->conf->pcsc_pin &&
3853 scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) {
3854 scard_deinit(wpa_s->scard);
3855 wpa_s->scard = NULL;
3856 wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed");
3860 len = sizeof(wpa_s->imsi) - 1;
3861 if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) {
3862 scard_deinit(wpa_s->scard);
3863 wpa_s->scard = NULL;
3864 wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI");
3867 wpa_s->imsi[len] = '\0';
3869 wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard);
3871 wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)",
3872 wpa_s->imsi, wpa_s->mnc_len);
3874 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
3875 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
3876 #endif /* PCSC_FUNCS */
3882 int wpas_init_ext_pw(struct wpa_supplicant *wpa_s)
3886 ext_password_deinit(wpa_s->ext_pw);
3887 wpa_s->ext_pw = NULL;
3888 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL);
3890 if (!wpa_s->conf->ext_password_backend)
3893 val = os_strdup(wpa_s->conf->ext_password_backend);
3896 pos = os_strchr(val, ':');
3900 wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val);
3902 wpa_s->ext_pw = ext_password_init(val, pos);
3904 if (wpa_s->ext_pw == NULL) {
3905 wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend");
3908 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw);
3916 static const u8 * wpas_fst_get_bssid_cb(void *ctx)
3918 struct wpa_supplicant *wpa_s = ctx;
3920 return (is_zero_ether_addr(wpa_s->bssid) ||
3921 wpa_s->wpa_state != WPA_COMPLETED) ? NULL : wpa_s->bssid;
3925 static void wpas_fst_get_channel_info_cb(void *ctx,
3926 enum hostapd_hw_mode *hw_mode,
3929 struct wpa_supplicant *wpa_s = ctx;
3931 if (wpa_s->current_bss) {
3932 *hw_mode = ieee80211_freq_to_chan(wpa_s->current_bss->freq,
3934 } else if (wpa_s->hw.num_modes) {
3935 *hw_mode = wpa_s->hw.modes[0].mode;
3943 static int wpas_fst_get_hw_modes(void *ctx, struct hostapd_hw_modes **modes)
3945 struct wpa_supplicant *wpa_s = ctx;
3947 *modes = wpa_s->hw.modes;
3948 return wpa_s->hw.num_modes;
3952 static void wpas_fst_set_ies_cb(void *ctx, const struct wpabuf *fst_ies)
3954 struct wpa_supplicant *wpa_s = ctx;
3956 wpa_hexdump_buf(MSG_DEBUG, "FST: Set IEs", fst_ies);
3957 wpa_s->fst_ies = fst_ies;
3961 static int wpas_fst_send_action_cb(void *ctx, const u8 *da, struct wpabuf *data)
3963 struct wpa_supplicant *wpa_s = ctx;
3965 WPA_ASSERT(os_memcmp(wpa_s->bssid, da, ETH_ALEN) == 0);
3966 return wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
3967 wpa_s->own_addr, wpa_s->bssid,
3968 wpabuf_head(data), wpabuf_len(data),
3973 static const struct wpabuf * wpas_fst_get_mb_ie_cb(void *ctx, const u8 *addr)
3975 struct wpa_supplicant *wpa_s = ctx;
3977 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
3978 return wpa_s->received_mb_ies;
3982 static void wpas_fst_update_mb_ie_cb(void *ctx, const u8 *addr,
3983 const u8 *buf, size_t size)
3985 struct wpa_supplicant *wpa_s = ctx;
3986 struct mb_ies_info info;
3988 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
3990 if (!mb_ies_info_by_ies(&info, buf, size)) {
3991 wpabuf_free(wpa_s->received_mb_ies);
3992 wpa_s->received_mb_ies = mb_ies_by_info(&info);
3997 const u8 * wpas_fst_get_peer_first(void *ctx, struct fst_get_peer_ctx **get_ctx,
4000 struct wpa_supplicant *wpa_s = ctx;
4003 if (!is_zero_ether_addr(wpa_s->bssid))
4004 return (wpa_s->received_mb_ies || !mb_only) ?
4005 wpa_s->bssid : NULL;
4010 const u8 * wpas_fst_get_peer_next(void *ctx, struct fst_get_peer_ctx **get_ctx,
4016 void fst_wpa_supplicant_fill_iface_obj(struct wpa_supplicant *wpa_s,
4017 struct fst_wpa_obj *iface_obj)
4019 iface_obj->ctx = wpa_s;
4020 iface_obj->get_bssid = wpas_fst_get_bssid_cb;
4021 iface_obj->get_channel_info = wpas_fst_get_channel_info_cb;
4022 iface_obj->get_hw_modes = wpas_fst_get_hw_modes;
4023 iface_obj->set_ies = wpas_fst_set_ies_cb;
4024 iface_obj->send_action = wpas_fst_send_action_cb;
4025 iface_obj->get_mb_ie = wpas_fst_get_mb_ie_cb;
4026 iface_obj->update_mb_ie = wpas_fst_update_mb_ie_cb;
4027 iface_obj->get_peer_first = wpas_fst_get_peer_first;
4028 iface_obj->get_peer_next = wpas_fst_get_peer_next;
4030 #endif /* CONFIG_FST */
4032 static int wpas_set_wowlan_triggers(struct wpa_supplicant *wpa_s,
4033 const struct wpa_driver_capa *capa)
4035 struct wowlan_triggers *triggers;
4038 if (!wpa_s->conf->wowlan_triggers)
4041 triggers = wpa_get_wowlan_triggers(wpa_s->conf->wowlan_triggers, capa);
4043 ret = wpa_drv_wowlan(wpa_s, triggers);
4050 enum wpa_radio_work_band wpas_freq_to_band(int freq)
4053 return BAND_2_4_GHZ;
4060 unsigned int wpas_get_bands(struct wpa_supplicant *wpa_s, const int *freqs)
4063 unsigned int band = 0;
4066 /* freqs are specified for the radio work */
4067 for (i = 0; freqs[i]; i++)
4068 band |= wpas_freq_to_band(freqs[i]);
4071 * freqs are not specified, implies all
4072 * the supported freqs by HW
4074 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4075 if (wpa_s->hw.modes[i].num_channels != 0) {
4076 if (wpa_s->hw.modes[i].mode ==
4077 HOSTAPD_MODE_IEEE80211B ||
4078 wpa_s->hw.modes[i].mode ==
4079 HOSTAPD_MODE_IEEE80211G)
4080 band |= BAND_2_4_GHZ;
4081 else if (wpa_s->hw.modes[i].mode ==
4082 HOSTAPD_MODE_IEEE80211A)
4084 else if (wpa_s->hw.modes[i].mode ==
4085 HOSTAPD_MODE_IEEE80211AD)
4086 band |= BAND_60_GHZ;
4087 else if (wpa_s->hw.modes[i].mode ==
4088 HOSTAPD_MODE_IEEE80211ANY)
4089 band = BAND_2_4_GHZ | BAND_5_GHZ |
4099 static struct wpa_radio * radio_add_interface(struct wpa_supplicant *wpa_s,
4102 struct wpa_supplicant *iface = wpa_s->global->ifaces;
4103 struct wpa_radio *radio;
4105 while (rn && iface) {
4106 radio = iface->radio;
4107 if (radio && os_strcmp(rn, radio->name) == 0) {
4108 wpa_printf(MSG_DEBUG, "Add interface %s to existing radio %s",
4110 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
4114 iface = iface->next;
4117 wpa_printf(MSG_DEBUG, "Add interface %s to a new radio %s",
4118 wpa_s->ifname, rn ? rn : "N/A");
4119 radio = os_zalloc(sizeof(*radio));
4124 os_strlcpy(radio->name, rn, sizeof(radio->name));
4125 dl_list_init(&radio->ifaces);
4126 dl_list_init(&radio->work);
4127 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
4133 static void radio_work_free(struct wpa_radio_work *work)
4135 if (work->wpa_s->scan_work == work) {
4136 /* This should not really happen. */
4137 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work",
4138 work->type, work, work->started);
4139 work->wpa_s->scan_work = NULL;
4143 if (work->wpa_s->p2p_scan_work == work) {
4144 /* This should not really happen. */
4145 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work",
4146 work->type, work, work->started);
4147 work->wpa_s->p2p_scan_work = NULL;
4149 #endif /* CONFIG_P2P */
4151 if (work->started) {
4152 work->wpa_s->radio->num_active_works--;
4153 wpa_dbg(work->wpa_s, MSG_DEBUG,
4154 "radio_work_free('%s'@%p: num_active_works --> %u",
4156 work->wpa_s->radio->num_active_works);
4159 dl_list_del(&work->list);
4164 static struct wpa_radio_work * radio_work_get_next_work(struct wpa_radio *radio)
4166 struct wpa_radio_work *active_work = NULL;
4167 struct wpa_radio_work *tmp;
4169 /* Get the active work to know the type and band. */
4170 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) {
4178 /* No active work, start one */
4179 radio->num_active_works = 0;
4180 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work,
4182 if (os_strcmp(tmp->type, "scan") == 0 &&
4183 radio->external_scan_running &&
4184 (((struct wpa_driver_scan_params *)
4185 tmp->ctx)->only_new_results ||
4186 tmp->wpa_s->clear_driver_scan_cache))
4193 if (os_strcmp(active_work->type, "sme-connect") == 0 ||
4194 os_strcmp(active_work->type, "connect") == 0) {
4196 * If the active work is either connect or sme-connect,
4197 * do not parallelize them with other radio works.
4199 wpa_dbg(active_work->wpa_s, MSG_DEBUG,
4200 "Do not parallelize radio work with %s",
4205 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) {
4210 * If connect or sme-connect are enqueued, parallelize only
4211 * those operations ahead of them in the queue.
4213 if (os_strcmp(tmp->type, "connect") == 0 ||
4214 os_strcmp(tmp->type, "sme-connect") == 0)
4218 * Check that the radio works are distinct and
4219 * on different bands.
4221 if (os_strcmp(active_work->type, tmp->type) != 0 &&
4222 (active_work->bands != tmp->bands)) {
4224 * If a scan has to be scheduled through nl80211 scan
4225 * interface and if an external scan is already running,
4226 * do not schedule the scan since it is likely to get
4227 * rejected by kernel.
4229 if (os_strcmp(tmp->type, "scan") == 0 &&
4230 radio->external_scan_running &&
4231 (((struct wpa_driver_scan_params *)
4232 tmp->ctx)->only_new_results ||
4233 tmp->wpa_s->clear_driver_scan_cache))
4236 wpa_dbg(active_work->wpa_s, MSG_DEBUG,
4237 "active_work:%s new_work:%s",
4238 active_work->type, tmp->type);
4243 /* Did not find a radio work to schedule in parallel. */
4248 static void radio_start_next_work(void *eloop_ctx, void *timeout_ctx)
4250 struct wpa_radio *radio = eloop_ctx;
4251 struct wpa_radio_work *work;
4252 struct os_reltime now, diff;
4253 struct wpa_supplicant *wpa_s;
4255 work = dl_list_first(&radio->work, struct wpa_radio_work, list);
4257 radio->num_active_works = 0;
4261 wpa_s = dl_list_first(&radio->ifaces, struct wpa_supplicant,
4265 wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)) {
4267 return; /* already started and still in progress */
4269 if (wpa_s && wpa_s->radio->external_scan_running) {
4270 wpa_printf(MSG_DEBUG, "Delay radio work start until externally triggered scan completes");
4275 if (radio->num_active_works < MAX_ACTIVE_WORKS) {
4276 /* get the work to schedule next */
4277 work = radio_work_get_next_work(radio);
4283 wpa_s = work->wpa_s;
4284 os_get_reltime(&now);
4285 os_reltime_sub(&now, &work->time, &diff);
4286 wpa_dbg(wpa_s, MSG_DEBUG,
4287 "Starting radio work '%s'@%p after %ld.%06ld second wait",
4288 work->type, work, diff.sec, diff.usec);
4291 radio->num_active_works++;
4295 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS) &&
4296 radio->num_active_works < MAX_ACTIVE_WORKS)
4297 radio_work_check_next(wpa_s);
4302 * This function removes both started and pending radio works running on
4303 * the provided interface's radio.
4304 * Prior to the removal of the radio work, its callback (cb) is called with
4305 * deinit set to be 1. Each work's callback is responsible for clearing its
4306 * internal data and restoring to a correct state.
4307 * @wpa_s: wpa_supplicant data
4308 * @type: type of works to be removed
4309 * @remove_all: 1 to remove all the works on this radio, 0 to remove only
4310 * this interface's works.
4312 void radio_remove_works(struct wpa_supplicant *wpa_s,
4313 const char *type, int remove_all)
4315 struct wpa_radio_work *work, *tmp;
4316 struct wpa_radio *radio = wpa_s->radio;
4318 dl_list_for_each_safe(work, tmp, &radio->work, struct wpa_radio_work,
4320 if (type && os_strcmp(type, work->type) != 0)
4323 /* skip other ifaces' works */
4324 if (!remove_all && work->wpa_s != wpa_s)
4327 wpa_dbg(wpa_s, MSG_DEBUG, "Remove radio work '%s'@%p%s",
4328 work->type, work, work->started ? " (started)" : "");
4330 radio_work_free(work);
4333 /* in case we removed the started work */
4334 radio_work_check_next(wpa_s);
4338 static void radio_remove_interface(struct wpa_supplicant *wpa_s)
4340 struct wpa_radio *radio = wpa_s->radio;
4345 wpa_printf(MSG_DEBUG, "Remove interface %s from radio %s",
4346 wpa_s->ifname, radio->name);
4347 dl_list_del(&wpa_s->radio_list);
4348 radio_remove_works(wpa_s, NULL, 0);
4349 wpa_s->radio = NULL;
4350 if (!dl_list_empty(&radio->ifaces))
4351 return; /* Interfaces remain for this radio */
4353 wpa_printf(MSG_DEBUG, "Remove radio %s", radio->name);
4354 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4359 void radio_work_check_next(struct wpa_supplicant *wpa_s)
4361 struct wpa_radio *radio = wpa_s->radio;
4363 if (dl_list_empty(&radio->work))
4365 if (wpa_s->ext_work_in_progress) {
4366 wpa_printf(MSG_DEBUG,
4367 "External radio work in progress - delay start of pending item");
4370 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4371 eloop_register_timeout(0, 0, radio_start_next_work, radio, NULL);
4376 * radio_add_work - Add a radio work item
4377 * @wpa_s: Pointer to wpa_supplicant data
4378 * @freq: Frequency of the offchannel operation in MHz or 0
4379 * @type: Unique identifier for each type of work
4380 * @next: Force as the next work to be executed
4381 * @cb: Callback function for indicating when radio is available
4382 * @ctx: Context pointer for the work (work->ctx in cb())
4383 * Returns: 0 on success, -1 on failure
4385 * This function is used to request time for an operation that requires
4386 * exclusive radio control. Once the radio is available, the registered callback
4387 * function will be called. radio_work_done() must be called once the exclusive
4388 * radio operation has been completed, so that the radio is freed for other
4389 * operations. The special case of deinit=1 is used to free the context data
4390 * during interface removal. That does not allow the callback function to start
4391 * the radio operation, i.e., it must free any resources allocated for the radio
4394 * The @freq parameter can be used to indicate a single channel on which the
4395 * offchannel operation will occur. This may allow multiple radio work
4396 * operations to be performed in parallel if they apply for the same channel.
4397 * Setting this to 0 indicates that the work item may use multiple channels or
4398 * requires exclusive control of the radio.
4400 int radio_add_work(struct wpa_supplicant *wpa_s, unsigned int freq,
4401 const char *type, int next,
4402 void (*cb)(struct wpa_radio_work *work, int deinit),
4405 struct wpa_radio *radio = wpa_s->radio;
4406 struct wpa_radio_work *work;
4409 work = os_zalloc(sizeof(*work));
4412 wpa_dbg(wpa_s, MSG_DEBUG, "Add radio work '%s'@%p", type, work);
4413 os_get_reltime(&work->time);
4416 work->wpa_s = wpa_s;
4421 work->bands = wpas_freq_to_band(freq);
4422 else if (os_strcmp(type, "scan") == 0 ||
4423 os_strcmp(type, "p2p-scan") == 0)
4424 work->bands = wpas_get_bands(wpa_s,
4425 ((struct wpa_driver_scan_params *)
4428 work->bands = wpas_get_bands(wpa_s, NULL);
4430 was_empty = dl_list_empty(&wpa_s->radio->work);
4432 dl_list_add(&wpa_s->radio->work, &work->list);
4434 dl_list_add_tail(&wpa_s->radio->work, &work->list);
4436 wpa_dbg(wpa_s, MSG_DEBUG, "First radio work item in the queue - schedule start immediately");
4437 radio_work_check_next(wpa_s);
4438 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)
4439 && radio->num_active_works < MAX_ACTIVE_WORKS) {
4440 wpa_dbg(wpa_s, MSG_DEBUG,
4441 "Try to schedule a radio work (num_active_works=%u)",
4442 radio->num_active_works);
4443 radio_work_check_next(wpa_s);
4451 * radio_work_done - Indicate that a radio work item has been completed
4452 * @work: Completed work
4454 * This function is called once the callback function registered with
4455 * radio_add_work() has completed its work.
4457 void radio_work_done(struct wpa_radio_work *work)
4459 struct wpa_supplicant *wpa_s = work->wpa_s;
4460 struct os_reltime now, diff;
4461 unsigned int started = work->started;
4463 os_get_reltime(&now);
4464 os_reltime_sub(&now, &work->time, &diff);
4465 wpa_dbg(wpa_s, MSG_DEBUG, "Radio work '%s'@%p %s in %ld.%06ld seconds",
4466 work->type, work, started ? "done" : "canceled",
4467 diff.sec, diff.usec);
4468 radio_work_free(work);
4470 radio_work_check_next(wpa_s);
4474 struct wpa_radio_work *
4475 radio_work_pending(struct wpa_supplicant *wpa_s, const char *type)
4477 struct wpa_radio_work *work;
4478 struct wpa_radio *radio = wpa_s->radio;
4480 dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) {
4481 if (work->wpa_s == wpa_s && os_strcmp(work->type, type) == 0)
4489 static int wpas_init_driver(struct wpa_supplicant *wpa_s,
4490 struct wpa_interface *iface)
4492 const char *ifname, *driver, *rn;
4494 driver = iface->driver;
4496 if (wpa_supplicant_set_driver(wpa_s, driver) < 0)
4499 wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname);
4500 if (wpa_s->drv_priv == NULL) {
4502 pos = driver ? os_strchr(driver, ',') : NULL;
4504 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
4505 "driver interface - try next driver wrapper");
4509 wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver "
4513 if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) {
4514 wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected "
4515 "driver_param '%s'", wpa_s->conf->driver_param);
4519 ifname = wpa_drv_get_ifname(wpa_s);
4520 if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) {
4521 wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced "
4522 "interface name with '%s'", ifname);
4523 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
4526 rn = wpa_driver_get_radio_name(wpa_s);
4527 if (rn && rn[0] == '\0')
4530 wpa_s->radio = radio_add_interface(wpa_s, rn);
4531 if (wpa_s->radio == NULL)
4538 static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
4539 struct wpa_interface *iface)
4541 struct wpa_driver_capa capa;
4544 wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver "
4545 "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname,
4546 iface->confname ? iface->confname : "N/A",
4547 iface->driver ? iface->driver : "default",
4548 iface->ctrl_interface ? iface->ctrl_interface : "N/A",
4549 iface->bridge_ifname ? iface->bridge_ifname : "N/A");
4551 if (iface->confname) {
4552 #ifdef CONFIG_BACKEND_FILE
4553 wpa_s->confname = os_rel2abs_path(iface->confname);
4554 if (wpa_s->confname == NULL) {
4555 wpa_printf(MSG_ERROR, "Failed to get absolute path "
4556 "for configuration file '%s'.",
4560 wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'",
4561 iface->confname, wpa_s->confname);
4562 #else /* CONFIG_BACKEND_FILE */
4563 wpa_s->confname = os_strdup(iface->confname);
4564 #endif /* CONFIG_BACKEND_FILE */
4565 wpa_s->conf = wpa_config_read(wpa_s->confname, NULL);
4566 if (wpa_s->conf == NULL) {
4567 wpa_printf(MSG_ERROR, "Failed to read or parse "
4568 "configuration '%s'.", wpa_s->confname);
4571 wpa_s->confanother = os_rel2abs_path(iface->confanother);
4572 wpa_config_read(wpa_s->confanother, wpa_s->conf);
4575 * Override ctrl_interface and driver_param if set on command
4578 if (iface->ctrl_interface) {
4579 os_free(wpa_s->conf->ctrl_interface);
4580 wpa_s->conf->ctrl_interface =
4581 os_strdup(iface->ctrl_interface);
4584 if (iface->driver_param) {
4585 os_free(wpa_s->conf->driver_param);
4586 wpa_s->conf->driver_param =
4587 os_strdup(iface->driver_param);
4590 if (iface->p2p_mgmt && !iface->ctrl_interface) {
4591 os_free(wpa_s->conf->ctrl_interface);
4592 wpa_s->conf->ctrl_interface = NULL;
4595 wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface,
4596 iface->driver_param);
4598 if (wpa_s->conf == NULL) {
4599 wpa_printf(MSG_ERROR, "\nNo configuration found.");
4603 if (iface->ifname == NULL) {
4604 wpa_printf(MSG_ERROR, "\nInterface name is required.");
4607 if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) {
4608 wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.",
4612 os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname));
4614 if (iface->bridge_ifname) {
4615 if (os_strlen(iface->bridge_ifname) >=
4616 sizeof(wpa_s->bridge_ifname)) {
4617 wpa_printf(MSG_ERROR, "\nToo long bridge interface "
4618 "name '%s'.", iface->bridge_ifname);
4621 os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname,
4622 sizeof(wpa_s->bridge_ifname));
4625 /* RSNA Supplicant Key Management - INITIALIZE */
4626 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
4627 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
4629 /* Initialize driver interface and register driver event handler before
4630 * L2 receive handler so that association events are processed before
4631 * EAPOL-Key packets if both become available for the same select()
4633 if (wpas_init_driver(wpa_s, iface) < 0)
4636 if (wpa_supplicant_init_wpa(wpa_s) < 0)
4639 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname,
4640 wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname :
4642 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
4644 if (wpa_s->conf->dot11RSNAConfigPMKLifetime &&
4645 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
4646 wpa_s->conf->dot11RSNAConfigPMKLifetime)) {
4647 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4648 "dot11RSNAConfigPMKLifetime");
4652 if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold &&
4653 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
4654 wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) {
4655 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4656 "dot11RSNAConfigPMKReauthThreshold");
4660 if (wpa_s->conf->dot11RSNAConfigSATimeout &&
4661 wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT,
4662 wpa_s->conf->dot11RSNAConfigSATimeout)) {
4663 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4664 "dot11RSNAConfigSATimeout");
4668 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s,
4669 &wpa_s->hw.num_modes,
4671 if (wpa_s->hw.modes) {
4674 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4675 if (wpa_s->hw.modes[i].vht_capab) {
4676 wpa_s->hw_capab = CAPAB_VHT;
4680 if (wpa_s->hw.modes[i].ht_capab &
4681 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)
4682 wpa_s->hw_capab = CAPAB_HT40;
4683 else if (wpa_s->hw.modes[i].ht_capab &&
4684 wpa_s->hw_capab == CAPAB_NO_HT_VHT)
4685 wpa_s->hw_capab = CAPAB_HT;
4689 capa_res = wpa_drv_get_capa(wpa_s, &capa);
4690 if (capa_res == 0) {
4691 wpa_s->drv_capa_known = 1;
4692 wpa_s->drv_flags = capa.flags;
4693 wpa_s->drv_enc = capa.enc;
4694 wpa_s->drv_smps_modes = capa.smps_modes;
4695 wpa_s->drv_rrm_flags = capa.rrm_flags;
4696 wpa_s->probe_resp_offloads = capa.probe_resp_offloads;
4697 wpa_s->max_scan_ssids = capa.max_scan_ssids;
4698 wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids;
4699 wpa_s->max_sched_scan_plans = capa.max_sched_scan_plans;
4700 wpa_s->max_sched_scan_plan_interval =
4701 capa.max_sched_scan_plan_interval;
4702 wpa_s->max_sched_scan_plan_iterations =
4703 capa.max_sched_scan_plan_iterations;
4704 wpa_s->sched_scan_supported = capa.sched_scan_supported;
4705 wpa_s->max_match_sets = capa.max_match_sets;
4706 wpa_s->max_remain_on_chan = capa.max_remain_on_chan;
4707 wpa_s->max_stations = capa.max_stations;
4708 wpa_s->extended_capa = capa.extended_capa;
4709 wpa_s->extended_capa_mask = capa.extended_capa_mask;
4710 wpa_s->extended_capa_len = capa.extended_capa_len;
4711 wpa_s->num_multichan_concurrent =
4712 capa.num_multichan_concurrent;
4713 wpa_s->wmm_ac_supported = capa.wmm_ac_supported;
4715 if (capa.mac_addr_rand_scan_supported)
4716 wpa_s->mac_addr_rand_supported |= MAC_ADDR_RAND_SCAN;
4717 if (wpa_s->sched_scan_supported &&
4718 capa.mac_addr_rand_sched_scan_supported)
4719 wpa_s->mac_addr_rand_supported |=
4720 (MAC_ADDR_RAND_SCHED_SCAN | MAC_ADDR_RAND_PNO);
4722 if (wpa_s->max_remain_on_chan == 0)
4723 wpa_s->max_remain_on_chan = 1000;
4726 * Only take p2p_mgmt parameters when P2P Device is supported.
4727 * Doing it here as it determines whether l2_packet_init() will be done
4728 * during wpa_supplicant_driver_init().
4730 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
4731 wpa_s->p2p_mgmt = iface->p2p_mgmt;
4733 iface->p2p_mgmt = 1;
4735 if (wpa_s->num_multichan_concurrent == 0)
4736 wpa_s->num_multichan_concurrent = 1;
4738 if (wpa_supplicant_driver_init(wpa_s) < 0)
4742 if ((!iface->p2p_mgmt ||
4743 !(wpa_s->drv_flags &
4744 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
4745 wpa_tdls_init(wpa_s->wpa))
4747 #endif /* CONFIG_TDLS */
4749 if (wpa_s->conf->country[0] && wpa_s->conf->country[1] &&
4750 wpa_drv_set_country(wpa_s, wpa_s->conf->country)) {
4751 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country");
4756 if (wpa_s->conf->fst_group_id) {
4757 struct fst_iface_cfg cfg;
4758 struct fst_wpa_obj iface_obj;
4760 fst_wpa_supplicant_fill_iface_obj(wpa_s, &iface_obj);
4761 os_strlcpy(cfg.group_id, wpa_s->conf->fst_group_id,
4762 sizeof(cfg.group_id));
4763 cfg.priority = wpa_s->conf->fst_priority;
4764 cfg.llt = wpa_s->conf->fst_llt;
4766 wpa_s->fst = fst_attach(wpa_s->ifname, wpa_s->own_addr,
4769 wpa_msg(wpa_s, MSG_ERROR,
4770 "FST: Cannot attach iface %s to group %s",
4771 wpa_s->ifname, cfg.group_id);
4775 #endif /* CONFIG_FST */
4777 if (wpas_wps_init(wpa_s))
4780 if (wpa_supplicant_init_eapol(wpa_s) < 0)
4782 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
4784 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
4785 if (wpa_s->ctrl_iface == NULL) {
4786 wpa_printf(MSG_ERROR,
4787 "Failed to initialize control interface '%s'.\n"
4788 "You may have another wpa_supplicant process "
4789 "already running or the file was\n"
4790 "left by an unclean termination of wpa_supplicant "
4791 "in which case you will need\n"
4792 "to manually remove this file before starting "
4793 "wpa_supplicant again.\n",
4794 wpa_s->conf->ctrl_interface);
4798 wpa_s->gas = gas_query_init(wpa_s);
4799 if (wpa_s->gas == NULL) {
4800 wpa_printf(MSG_ERROR, "Failed to initialize GAS query");
4804 if (iface->p2p_mgmt && wpas_p2p_init(wpa_s->global, wpa_s) < 0) {
4805 wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P");
4809 if (wpa_bss_init(wpa_s) < 0)
4813 * Set Wake-on-WLAN triggers, if configured.
4814 * Note: We don't restore/remove the triggers on shutdown (it doesn't
4815 * have effect anyway when the interface is down).
4817 if (capa_res == 0 && wpas_set_wowlan_triggers(wpa_s, &capa) < 0)
4820 #ifdef CONFIG_EAP_PROXY
4823 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, wpa_s->imsi,
4825 if (wpa_s->mnc_len > 0) {
4826 wpa_s->imsi[len] = '\0';
4827 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
4828 wpa_s->imsi, wpa_s->mnc_len);
4830 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
4833 #endif /* CONFIG_EAP_PROXY */
4835 if (pcsc_reader_init(wpa_s) < 0)
4838 if (wpas_init_ext_pw(wpa_s) < 0)
4841 wpas_rrm_reset(wpa_s);
4843 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
4847 #endif /* CONFIG_HS20 */
4849 wpas_mbo_update_non_pref_chan(wpa_s, wpa_s->conf->non_pref_chan);
4850 #endif /* CONFIG_MBO */
4856 static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s,
4857 int notify, int terminate)
4859 struct wpa_global *global = wpa_s->global;
4860 struct wpa_supplicant *iface, *prev;
4862 if (wpa_s == wpa_s->parent)
4863 wpas_p2p_group_remove(wpa_s, "*");
4865 iface = global->ifaces;
4867 if (iface->p2pdev == wpa_s)
4868 iface->p2pdev = iface->parent;
4869 if (iface == wpa_s || iface->parent != wpa_s) {
4870 iface = iface->next;
4873 wpa_printf(MSG_DEBUG,
4874 "Remove remaining child interface %s from parent %s",
4875 iface->ifname, wpa_s->ifname);
4877 iface = iface->next;
4878 wpa_supplicant_remove_iface(global, prev, terminate);
4881 wpa_s->disconnected = 1;
4882 if (wpa_s->drv_priv) {
4883 wpa_supplicant_deauthenticate(wpa_s,
4884 WLAN_REASON_DEAUTH_LEAVING);
4886 wpa_drv_set_countermeasures(wpa_s, 0);
4887 wpa_clear_keys(wpa_s, NULL);
4890 wpa_supplicant_cleanup(wpa_s);
4891 wpas_p2p_deinit_iface(wpa_s);
4893 wpas_ctrl_radio_work_flush(wpa_s);
4894 radio_remove_interface(wpa_s);
4898 fst_detach(wpa_s->fst);
4901 if (wpa_s->received_mb_ies) {
4902 wpabuf_free(wpa_s->received_mb_ies);
4903 wpa_s->received_mb_ies = NULL;
4905 #endif /* CONFIG_FST */
4907 if (wpa_s->drv_priv)
4908 wpa_drv_deinit(wpa_s);
4911 wpas_notify_iface_removed(wpa_s);
4914 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING);
4916 if (wpa_s->ctrl_iface) {
4917 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
4918 wpa_s->ctrl_iface = NULL;
4923 wpa_supplicant_mesh_iface_deinit(wpa_s, wpa_s->ifmsh);
4924 wpa_s->ifmsh = NULL;
4926 #endif /* CONFIG_MESH */
4928 if (wpa_s->conf != NULL) {
4929 wpa_config_free(wpa_s->conf);
4933 os_free(wpa_s->ssids_from_scan_req);
4939 #ifdef CONFIG_MATCH_IFACE
4942 * wpa_supplicant_match_iface - Match an interface description to a name
4943 * @global: Pointer to global data from wpa_supplicant_init()
4944 * @ifname: Name of the interface to match
4945 * Returns: Pointer to the created interface description or %NULL on failure
4947 struct wpa_interface * wpa_supplicant_match_iface(struct wpa_global *global,
4951 struct wpa_interface *iface, *miface;
4953 for (i = 0; i < global->params.match_iface_count; i++) {
4954 miface = &global->params.match_ifaces[i];
4955 if (!miface->ifname ||
4956 fnmatch(miface->ifname, ifname, 0) == 0) {
4957 iface = os_zalloc(sizeof(*iface));
4961 iface->ifname = ifname;
4971 * wpa_supplicant_match_existing - Match existing interfaces
4972 * @global: Pointer to global data from wpa_supplicant_init()
4973 * Returns: 0 on success, -1 on failure
4975 static int wpa_supplicant_match_existing(struct wpa_global *global)
4977 struct if_nameindex *ifi, *ifp;
4978 struct wpa_supplicant *wpa_s;
4979 struct wpa_interface *iface;
4981 ifp = if_nameindex();
4983 wpa_printf(MSG_ERROR, "if_nameindex: %s", strerror(errno));
4987 for (ifi = ifp; ifi->if_name; ifi++) {
4988 wpa_s = wpa_supplicant_get_iface(global, ifi->if_name);
4991 iface = wpa_supplicant_match_iface(global, ifi->if_name);
4993 wpa_s = wpa_supplicant_add_iface(global, iface, NULL);
5000 if_freenameindex(ifp);
5004 #endif /* CONFIG_MATCH_IFACE */
5008 * wpa_supplicant_add_iface - Add a new network interface
5009 * @global: Pointer to global data from wpa_supplicant_init()
5010 * @iface: Interface configuration options
5011 * @parent: Parent interface or %NULL to assign new interface as parent
5012 * Returns: Pointer to the created interface or %NULL on failure
5014 * This function is used to add new network interfaces for %wpa_supplicant.
5015 * This can be called before wpa_supplicant_run() to add interfaces before the
5016 * main event loop has been started. In addition, new interfaces can be added
5017 * dynamically while %wpa_supplicant is already running. This could happen,
5018 * e.g., when a hotplug network adapter is inserted.
5020 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
5021 struct wpa_interface *iface,
5022 struct wpa_supplicant *parent)
5024 struct wpa_supplicant *wpa_s;
5025 struct wpa_interface t_iface;
5026 struct wpa_ssid *ssid;
5028 if (global == NULL || iface == NULL)
5031 wpa_s = wpa_supplicant_alloc(parent);
5035 wpa_s->global = global;
5038 if (global->params.override_driver) {
5039 wpa_printf(MSG_DEBUG, "Override interface parameter: driver "
5041 iface->driver, global->params.override_driver);
5042 t_iface.driver = global->params.override_driver;
5044 if (global->params.override_ctrl_interface) {
5045 wpa_printf(MSG_DEBUG, "Override interface parameter: "
5046 "ctrl_interface ('%s' -> '%s')",
5047 iface->ctrl_interface,
5048 global->params.override_ctrl_interface);
5049 t_iface.ctrl_interface =
5050 global->params.override_ctrl_interface;
5052 if (wpa_supplicant_init_iface(wpa_s, &t_iface)) {
5053 wpa_printf(MSG_DEBUG, "Failed to add interface %s",
5055 wpa_supplicant_deinit_iface(wpa_s, 0, 0);
5059 if (iface->p2p_mgmt == 0) {
5060 /* Notify the control interfaces about new iface */
5061 if (wpas_notify_iface_added(wpa_s)) {
5062 wpa_supplicant_deinit_iface(wpa_s, 1, 0);
5066 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
5067 wpas_notify_network_added(wpa_s, ssid);
5070 wpa_s->next = global->ifaces;
5071 global->ifaces = wpa_s;
5073 wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname);
5074 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5077 if (wpa_s->global->p2p == NULL &&
5078 !wpa_s->global->p2p_disabled && !wpa_s->conf->p2p_disabled &&
5079 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
5080 wpas_p2p_add_p2pdev_interface(
5081 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
5082 wpa_printf(MSG_INFO,
5083 "P2P: Failed to enable P2P Device interface");
5084 /* Try to continue without. P2P will be disabled. */
5086 #endif /* CONFIG_P2P */
5093 * wpa_supplicant_remove_iface - Remove a network interface
5094 * @global: Pointer to global data from wpa_supplicant_init()
5095 * @wpa_s: Pointer to the network interface to be removed
5096 * Returns: 0 if interface was removed, -1 if interface was not found
5098 * This function can be used to dynamically remove network interfaces from
5099 * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In
5100 * addition, this function is used to remove all remaining interfaces when
5101 * %wpa_supplicant is terminated.
5103 int wpa_supplicant_remove_iface(struct wpa_global *global,
5104 struct wpa_supplicant *wpa_s,
5107 struct wpa_supplicant *prev;
5109 unsigned int mesh_if_created = wpa_s->mesh_if_created;
5110 char *ifname = NULL;
5111 #endif /* CONFIG_MESH */
5113 /* Remove interface from the global list of interfaces */
5114 prev = global->ifaces;
5115 if (prev == wpa_s) {
5116 global->ifaces = wpa_s->next;
5118 while (prev && prev->next != wpa_s)
5122 prev->next = wpa_s->next;
5125 wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname);
5128 if (mesh_if_created) {
5129 ifname = os_strdup(wpa_s->ifname);
5130 if (ifname == NULL) {
5131 wpa_dbg(wpa_s, MSG_ERROR,
5132 "mesh: Failed to malloc ifname");
5136 #endif /* CONFIG_MESH */
5138 if (global->p2p_group_formation == wpa_s)
5139 global->p2p_group_formation = NULL;
5140 if (global->p2p_invite_group == wpa_s)
5141 global->p2p_invite_group = NULL;
5142 wpa_supplicant_deinit_iface(wpa_s, 1, terminate);
5145 if (mesh_if_created) {
5146 wpa_drv_if_remove(global->ifaces, WPA_IF_MESH, ifname);
5149 #endif /* CONFIG_MESH */
5156 * wpa_supplicant_get_eap_mode - Get the current EAP mode
5157 * @wpa_s: Pointer to the network interface
5158 * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found
5160 const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s)
5162 const char *eapol_method;
5164 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 &&
5165 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
5169 eapol_method = eapol_sm_get_method_name(wpa_s->eapol);
5170 if (eapol_method == NULL)
5171 return "UNKNOWN-EAP";
5173 return eapol_method;
5178 * wpa_supplicant_get_iface - Get a new network interface
5179 * @global: Pointer to global data from wpa_supplicant_init()
5180 * @ifname: Interface name
5181 * Returns: Pointer to the interface or %NULL if not found
5183 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
5186 struct wpa_supplicant *wpa_s;
5188 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5189 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5196 #ifndef CONFIG_NO_WPA_MSG
5197 static const char * wpa_supplicant_msg_ifname_cb(void *ctx)
5199 struct wpa_supplicant *wpa_s = ctx;
5202 return wpa_s->ifname;
5204 #endif /* CONFIG_NO_WPA_MSG */
5207 #ifndef WPA_SUPPLICANT_CLEANUP_INTERVAL
5208 #define WPA_SUPPLICANT_CLEANUP_INTERVAL 10
5209 #endif /* WPA_SUPPLICANT_CLEANUP_INTERVAL */
5211 /* Periodic cleanup tasks */
5212 static void wpas_periodic(void *eloop_ctx, void *timeout_ctx)
5214 struct wpa_global *global = eloop_ctx;
5215 struct wpa_supplicant *wpa_s;
5217 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
5218 wpas_periodic, global, NULL);
5222 p2p_expire_peers(global->p2p);
5223 #endif /* CONFIG_P2P */
5225 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5226 wpa_bss_flush_by_age(wpa_s, wpa_s->conf->bss_expiration_age);
5229 #endif /* CONFIG_AP */
5235 * wpa_supplicant_init - Initialize %wpa_supplicant
5236 * @params: Parameters for %wpa_supplicant
5237 * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure
5239 * This function is used to initialize %wpa_supplicant. After successful
5240 * initialization, the returned data pointer can be used to add and remove
5241 * network interfaces, and eventually, to deinitialize %wpa_supplicant.
5243 struct wpa_global * wpa_supplicant_init(struct wpa_params *params)
5245 struct wpa_global *global;
5251 #ifdef CONFIG_DRIVER_NDIS
5253 void driver_ndis_init_ops(void);
5254 driver_ndis_init_ops();
5256 #endif /* CONFIG_DRIVER_NDIS */
5258 #ifndef CONFIG_NO_WPA_MSG
5259 wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb);
5260 #endif /* CONFIG_NO_WPA_MSG */
5262 if (params->wpa_debug_file_path)
5263 wpa_debug_open_file(params->wpa_debug_file_path);
5265 wpa_debug_setup_stdout();
5266 if (params->wpa_debug_syslog)
5267 wpa_debug_open_syslog();
5268 if (params->wpa_debug_tracing) {
5269 ret = wpa_debug_open_linux_tracing();
5271 wpa_printf(MSG_ERROR,
5272 "Failed to enable trace logging");
5277 ret = eap_register_methods();
5279 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
5281 wpa_printf(MSG_ERROR, "Two or more EAP methods used "
5282 "the same EAP type.");
5286 global = os_zalloc(sizeof(*global));
5289 dl_list_init(&global->p2p_srv_bonjour);
5290 dl_list_init(&global->p2p_srv_upnp);
5291 global->params.daemonize = params->daemonize;
5292 global->params.wait_for_monitor = params->wait_for_monitor;
5293 global->params.dbus_ctrl_interface = params->dbus_ctrl_interface;
5294 if (params->pid_file)
5295 global->params.pid_file = os_strdup(params->pid_file);
5296 if (params->ctrl_interface)
5297 global->params.ctrl_interface =
5298 os_strdup(params->ctrl_interface);
5299 if (params->ctrl_interface_group)
5300 global->params.ctrl_interface_group =
5301 os_strdup(params->ctrl_interface_group);
5302 if (params->override_driver)
5303 global->params.override_driver =
5304 os_strdup(params->override_driver);
5305 if (params->override_ctrl_interface)
5306 global->params.override_ctrl_interface =
5307 os_strdup(params->override_ctrl_interface);
5308 #ifdef CONFIG_MATCH_IFACE
5309 global->params.match_iface_count = params->match_iface_count;
5310 if (params->match_iface_count) {
5311 global->params.match_ifaces =
5312 os_calloc(params->match_iface_count,
5313 sizeof(struct wpa_interface));
5314 os_memcpy(global->params.match_ifaces,
5315 params->match_ifaces,
5316 params->match_iface_count *
5317 sizeof(struct wpa_interface));
5319 #endif /* CONFIG_MATCH_IFACE */
5321 if (params->conf_p2p_dev)
5322 global->params.conf_p2p_dev =
5323 os_strdup(params->conf_p2p_dev);
5324 #endif /* CONFIG_P2P */
5325 wpa_debug_level = global->params.wpa_debug_level =
5326 params->wpa_debug_level;
5327 wpa_debug_show_keys = global->params.wpa_debug_show_keys =
5328 params->wpa_debug_show_keys;
5329 wpa_debug_timestamp = global->params.wpa_debug_timestamp =
5330 params->wpa_debug_timestamp;
5332 wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR);
5335 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
5336 wpa_supplicant_deinit(global);
5340 random_init(params->entropy_file);
5342 global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global);
5343 if (global->ctrl_iface == NULL) {
5344 wpa_supplicant_deinit(global);
5348 if (wpas_notify_supplicant_initialized(global)) {
5349 wpa_supplicant_deinit(global);
5353 for (i = 0; wpa_drivers[i]; i++)
5354 global->drv_count++;
5355 if (global->drv_count == 0) {
5356 wpa_printf(MSG_ERROR, "No drivers enabled");
5357 wpa_supplicant_deinit(global);
5360 global->drv_priv = os_calloc(global->drv_count, sizeof(void *));
5361 if (global->drv_priv == NULL) {
5362 wpa_supplicant_deinit(global);
5366 #ifdef CONFIG_WIFI_DISPLAY
5367 if (wifi_display_init(global) < 0) {
5368 wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display");
5369 wpa_supplicant_deinit(global);
5372 #endif /* CONFIG_WIFI_DISPLAY */
5374 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
5375 wpas_periodic, global, NULL);
5382 * wpa_supplicant_run - Run the %wpa_supplicant main event loop
5383 * @global: Pointer to global data from wpa_supplicant_init()
5384 * Returns: 0 after successful event loop run, -1 on failure
5386 * This function starts the main event loop and continues running as long as
5387 * there are any remaining events. In most cases, this function is running as
5388 * long as the %wpa_supplicant process in still in use.
5390 int wpa_supplicant_run(struct wpa_global *global)
5392 struct wpa_supplicant *wpa_s;
5394 if (global->params.daemonize &&
5395 (wpa_supplicant_daemon(global->params.pid_file) ||
5396 eloop_sock_requeue()))
5399 #ifdef CONFIG_MATCH_IFACE
5400 if (wpa_supplicant_match_existing(global))
5404 if (global->params.wait_for_monitor) {
5405 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
5406 if (wpa_s->ctrl_iface && !wpa_s->p2p_mgmt)
5407 wpa_supplicant_ctrl_iface_wait(
5411 eloop_register_signal_terminate(wpa_supplicant_terminate, global);
5412 eloop_register_signal_reconfig(wpa_supplicant_reconfig, global);
5421 * wpa_supplicant_deinit - Deinitialize %wpa_supplicant
5422 * @global: Pointer to global data from wpa_supplicant_init()
5424 * This function is called to deinitialize %wpa_supplicant and to free all
5425 * allocated resources. Remaining network interfaces will also be removed.
5427 void wpa_supplicant_deinit(struct wpa_global *global)
5434 eloop_cancel_timeout(wpas_periodic, global, NULL);
5436 #ifdef CONFIG_WIFI_DISPLAY
5437 wifi_display_deinit(global);
5438 #endif /* CONFIG_WIFI_DISPLAY */
5440 while (global->ifaces)
5441 wpa_supplicant_remove_iface(global, global->ifaces, 1);
5443 if (global->ctrl_iface)
5444 wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface);
5446 wpas_notify_supplicant_deinitialized(global);
5448 eap_peer_unregister_methods();
5450 eap_server_unregister_methods();
5451 #endif /* CONFIG_AP */
5453 for (i = 0; wpa_drivers[i] && global->drv_priv; i++) {
5454 if (!global->drv_priv[i])
5456 wpa_drivers[i]->global_deinit(global->drv_priv[i]);
5458 os_free(global->drv_priv);
5464 if (global->params.pid_file) {
5465 os_daemonize_terminate(global->params.pid_file);
5466 os_free(global->params.pid_file);
5468 os_free(global->params.ctrl_interface);
5469 os_free(global->params.ctrl_interface_group);
5470 os_free(global->params.override_driver);
5471 os_free(global->params.override_ctrl_interface);
5472 #ifdef CONFIG_MATCH_IFACE
5473 os_free(global->params.match_ifaces);
5474 #endif /* CONFIG_MATCH_IFACE */
5476 os_free(global->params.conf_p2p_dev);
5477 #endif /* CONFIG_P2P */
5479 os_free(global->p2p_disallow_freq.range);
5480 os_free(global->p2p_go_avoid_freq.range);
5481 os_free(global->add_psk);
5484 wpa_debug_close_syslog();
5485 wpa_debug_close_file();
5486 wpa_debug_close_linux_tracing();
5490 void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s)
5492 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
5493 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
5495 country[0] = wpa_s->conf->country[0];
5496 country[1] = wpa_s->conf->country[1];
5498 if (wpa_drv_set_country(wpa_s, country) < 0) {
5499 wpa_printf(MSG_ERROR, "Failed to set country code "
5504 if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND)
5505 wpas_init_ext_pw(wpa_s);
5507 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SCHED_SCAN_PLANS)
5508 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
5511 wpas_wps_update_config(wpa_s);
5512 #endif /* CONFIG_WPS */
5513 wpas_p2p_update_config(wpa_s);
5514 wpa_s->conf->changed_parameters = 0;
5518 void add_freq(int *freqs, int *num_freqs, int freq)
5522 for (i = 0; i < *num_freqs; i++) {
5523 if (freqs[i] == freq)
5527 freqs[*num_freqs] = freq;
5532 static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s)
5534 struct wpa_bss *bss, *cbss;
5535 const int max_freqs = 10;
5539 freqs = os_calloc(max_freqs + 1, sizeof(int));
5543 cbss = wpa_s->current_bss;
5545 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
5548 if (bss->ssid_len == cbss->ssid_len &&
5549 os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 &&
5550 wpa_blacklist_get(wpa_s, bss->bssid) == NULL) {
5551 add_freq(freqs, &num_freqs, bss->freq);
5552 if (num_freqs == max_freqs)
5557 if (num_freqs == 0) {
5566 void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid)
5572 wpas_connect_work_done(wpa_s);
5575 * Remove possible authentication timeout since the connection failed.
5577 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
5580 * There is no point in blacklisting the AP if this event is
5581 * generated based on local request to disconnect.
5583 if (wpa_s->own_disconnect_req) {
5584 wpa_s->own_disconnect_req = 0;
5585 wpa_dbg(wpa_s, MSG_DEBUG,
5586 "Ignore connection failure due to local request to disconnect");
5589 if (wpa_s->disconnected) {
5590 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure "
5591 "indication since interface has been put into "
5592 "disconnected state");
5597 * Add the failed BSSID into the blacklist and speed up next scan
5598 * attempt if there could be other APs that could accept association.
5599 * The current blacklist count indicates how many times we have tried
5600 * connecting to this AP and multiple attempts mean that other APs are
5601 * either not available or has already been tried, so that we can start
5602 * increasing the delay here to avoid constant scanning.
5604 count = wpa_blacklist_add(wpa_s, bssid);
5605 if (count == 1 && wpa_s->current_bss) {
5607 * This BSS was not in the blacklist before. If there is
5608 * another BSS available for the same ESS, we should try that
5609 * next. Otherwise, we may as well try this one once more
5610 * before allowing other, likely worse, ESSes to be considered.
5612 freqs = get_bss_freqs_in_ess(wpa_s);
5614 wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS "
5615 "has been seen; try it next");
5616 wpa_blacklist_add(wpa_s, bssid);
5618 * On the next scan, go through only the known channels
5619 * used in this ESS based on previous scans to speed up
5620 * common load balancing use case.
5622 os_free(wpa_s->next_scan_freqs);
5623 wpa_s->next_scan_freqs = freqs;
5628 * Add previous failure count in case the temporary blacklist was
5629 * cleared due to no other BSSes being available.
5631 count += wpa_s->extra_blacklist_count;
5633 if (count > 3 && wpa_s->current_ssid) {
5634 wpa_printf(MSG_DEBUG, "Continuous association failures - "
5635 "consider temporary network disabling");
5636 wpas_auth_failed(wpa_s, "CONN_FAILED");
5657 wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d "
5658 "ms", count, timeout);
5661 * TODO: if more than one possible AP is available in scan results,
5662 * could try the other ones before requesting a new scan.
5664 wpa_supplicant_req_scan(wpa_s, timeout / 1000,
5665 1000 * (timeout % 1000));
5669 int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s)
5671 return wpa_s->conf->ap_scan == 2 ||
5672 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION);
5676 #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW)
5677 int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s,
5678 struct wpa_ssid *ssid,
5682 #ifdef IEEE8021X_EAPOL
5683 struct eap_peer_config *eap = &ssid->eap;
5685 wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field);
5686 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value",
5687 (const u8 *) value, os_strlen(value));
5689 switch (wpa_supplicant_ctrl_req_from_string(field)) {
5690 case WPA_CTRL_REQ_EAP_IDENTITY:
5691 os_free(eap->identity);
5692 eap->identity = (u8 *) os_strdup(value);
5693 eap->identity_len = os_strlen(value);
5694 eap->pending_req_identity = 0;
5695 if (ssid == wpa_s->current_ssid)
5696 wpa_s->reassociate = 1;
5698 case WPA_CTRL_REQ_EAP_PASSWORD:
5699 bin_clear_free(eap->password, eap->password_len);
5700 eap->password = (u8 *) os_strdup(value);
5701 eap->password_len = os_strlen(value);
5702 eap->pending_req_password = 0;
5703 if (ssid == wpa_s->current_ssid)
5704 wpa_s->reassociate = 1;
5706 case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
5707 bin_clear_free(eap->new_password, eap->new_password_len);
5708 eap->new_password = (u8 *) os_strdup(value);
5709 eap->new_password_len = os_strlen(value);
5710 eap->pending_req_new_password = 0;
5711 if (ssid == wpa_s->current_ssid)
5712 wpa_s->reassociate = 1;
5714 case WPA_CTRL_REQ_EAP_PIN:
5715 str_clear_free(eap->pin);
5716 eap->pin = os_strdup(value);
5717 eap->pending_req_pin = 0;
5718 if (ssid == wpa_s->current_ssid)
5719 wpa_s->reassociate = 1;
5721 case WPA_CTRL_REQ_EAP_OTP:
5722 bin_clear_free(eap->otp, eap->otp_len);
5723 eap->otp = (u8 *) os_strdup(value);
5724 eap->otp_len = os_strlen(value);
5725 os_free(eap->pending_req_otp);
5726 eap->pending_req_otp = NULL;
5727 eap->pending_req_otp_len = 0;
5729 case WPA_CTRL_REQ_EAP_PASSPHRASE:
5730 str_clear_free(eap->private_key_passwd);
5731 eap->private_key_passwd = os_strdup(value);
5732 eap->pending_req_passphrase = 0;
5733 if (ssid == wpa_s->current_ssid)
5734 wpa_s->reassociate = 1;
5736 case WPA_CTRL_REQ_SIM:
5737 str_clear_free(eap->external_sim_resp);
5738 eap->external_sim_resp = os_strdup(value);
5740 case WPA_CTRL_REQ_PSK_PASSPHRASE:
5741 if (wpa_config_set(ssid, "psk", value, 0) < 0)
5743 ssid->mem_only_psk = 1;
5744 if (ssid->passphrase)
5745 wpa_config_update_psk(ssid);
5746 if (wpa_s->wpa_state == WPA_SCANNING && !wpa_s->scanning)
5747 wpa_supplicant_req_scan(wpa_s, 0, 0);
5749 case WPA_CTRL_REQ_EXT_CERT_CHECK:
5750 if (eap->pending_ext_cert_check != PENDING_CHECK)
5752 if (os_strcmp(value, "good") == 0)
5753 eap->pending_ext_cert_check = EXT_CERT_CHECK_GOOD;
5754 else if (os_strcmp(value, "bad") == 0)
5755 eap->pending_ext_cert_check = EXT_CERT_CHECK_BAD;
5760 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field);
5765 #else /* IEEE8021X_EAPOL */
5766 wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included");
5768 #endif /* IEEE8021X_EAPOL */
5770 #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */
5773 int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5776 unsigned int drv_enc;
5778 if (wpa_s->p2p_mgmt)
5779 return 1; /* no normal network profiles on p2p_mgmt interface */
5787 if (wpa_s->drv_capa_known)
5788 drv_enc = wpa_s->drv_enc;
5790 drv_enc = (unsigned int) -1;
5792 for (i = 0; i < NUM_WEP_KEYS; i++) {
5793 size_t len = ssid->wep_key_len[i];
5796 if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40))
5798 if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104))
5800 if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128))
5802 return 1; /* invalid WEP key */
5805 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
5806 (!ssid->passphrase || ssid->ssid_len != 0) && !ssid->ext_psk &&
5807 !ssid->mem_only_psk)
5814 int wpas_get_ssid_pmf(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5816 #ifdef CONFIG_IEEE80211W
5817 if (ssid == NULL || ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT) {
5818 if (wpa_s->conf->pmf == MGMT_FRAME_PROTECTION_OPTIONAL &&
5819 !(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_BIP)) {
5821 * Driver does not support BIP -- ignore pmf=1 default
5822 * since the connection with PMF would fail and the
5823 * configuration does not require PMF to be enabled.
5825 return NO_MGMT_FRAME_PROTECTION;
5828 return wpa_s->conf->pmf;
5831 return ssid->ieee80211w;
5832 #else /* CONFIG_IEEE80211W */
5833 return NO_MGMT_FRAME_PROTECTION;
5834 #endif /* CONFIG_IEEE80211W */
5838 int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s)
5840 if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P)
5842 if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA)
5848 void wpas_auth_failed(struct wpa_supplicant *wpa_s, char *reason)
5850 struct wpa_ssid *ssid = wpa_s->current_ssid;
5852 struct os_reltime now;
5855 wpa_printf(MSG_DEBUG, "Authentication failure but no known "
5860 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
5863 ssid->auth_failures++;
5866 if (ssid->p2p_group &&
5867 (wpa_s->p2p_in_provisioning || wpa_s->show_group_started)) {
5869 * Skip the wait time since there is a short timeout on the
5870 * connection to a P2P group.
5874 #endif /* CONFIG_P2P */
5876 if (ssid->auth_failures > 50)
5878 else if (ssid->auth_failures > 10)
5880 else if (ssid->auth_failures > 5)
5882 else if (ssid->auth_failures > 3)
5884 else if (ssid->auth_failures > 2)
5886 else if (ssid->auth_failures > 1)
5891 if (ssid->auth_failures > 1 &&
5892 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt))
5893 dur += os_random() % (ssid->auth_failures * 10);
5895 os_get_reltime(&now);
5896 if (now.sec + dur <= ssid->disabled_until.sec)
5899 ssid->disabled_until.sec = now.sec + dur;
5901 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED
5902 "id=%d ssid=\"%s\" auth_failures=%u duration=%d reason=%s",
5903 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
5904 ssid->auth_failures, dur, reason);
5908 void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s,
5909 struct wpa_ssid *ssid, int clear_failures)
5914 if (ssid->disabled_until.sec) {
5915 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED
5916 "id=%d ssid=\"%s\"",
5917 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
5919 ssid->disabled_until.sec = 0;
5920 ssid->disabled_until.usec = 0;
5922 ssid->auth_failures = 0;
5926 int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid)
5930 if (wpa_s->disallow_aps_bssid == NULL)
5933 for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) {
5934 if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN,
5935 bssid, ETH_ALEN) == 0)
5943 int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid,
5948 if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL)
5951 for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) {
5952 struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i];
5953 if (ssid_len == s->ssid_len &&
5954 os_memcmp(ssid, s->ssid, ssid_len) == 0)
5963 * wpas_request_connection - Request a new connection
5964 * @wpa_s: Pointer to the network interface
5966 * This function is used to request a new connection to be found. It will mark
5967 * the interface to allow reassociation and request a new scan to find a
5968 * suitable network to connect to.
5970 void wpas_request_connection(struct wpa_supplicant *wpa_s)
5972 wpa_s->normal_scans = 0;
5973 wpa_s->scan_req = NORMAL_SCAN_REQ;
5974 wpa_supplicant_reinit_autoscan(wpa_s);
5975 wpa_s->extra_blacklist_count = 0;
5976 wpa_s->disconnected = 0;
5977 wpa_s->reassociate = 1;
5979 if (wpa_supplicant_fast_associate(wpa_s) != 1)
5980 wpa_supplicant_req_scan(wpa_s, 0, 0);
5982 wpa_s->reattach = 0;
5986 void dump_freq_data(struct wpa_supplicant *wpa_s, const char *title,
5987 struct wpa_used_freq_data *freqs_data,
5992 wpa_dbg(wpa_s, MSG_DEBUG, "Shared frequencies (len=%u): %s",
5994 for (i = 0; i < len; i++) {
5995 struct wpa_used_freq_data *cur = &freqs_data[i];
5996 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d, flags=0x%X",
5997 i, cur->freq, cur->flags);
6003 * Find the operating frequencies of any of the virtual interfaces that
6004 * are using the same radio as the current interface, and in addition, get
6005 * information about the interface types that are using the frequency.
6007 int get_shared_radio_freqs_data(struct wpa_supplicant *wpa_s,
6008 struct wpa_used_freq_data *freqs_data,
6011 struct wpa_supplicant *ifs;
6014 unsigned int idx = 0, i;
6016 wpa_dbg(wpa_s, MSG_DEBUG,
6017 "Determining shared radio frequencies (max len %u)", len);
6018 os_memset(freqs_data, 0, sizeof(struct wpa_used_freq_data) * len);
6020 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6025 if (ifs->current_ssid == NULL || ifs->assoc_freq == 0)
6028 if (ifs->current_ssid->mode == WPAS_MODE_AP ||
6029 ifs->current_ssid->mode == WPAS_MODE_P2P_GO ||
6030 ifs->current_ssid->mode == WPAS_MODE_MESH)
6031 freq = ifs->current_ssid->frequency;
6032 else if (wpa_drv_get_bssid(ifs, bssid) == 0)
6033 freq = ifs->assoc_freq;
6037 /* Hold only distinct freqs */
6038 for (i = 0; i < idx; i++)
6039 if (freqs_data[i].freq == freq)
6043 freqs_data[idx++].freq = freq;
6045 if (ifs->current_ssid->mode == WPAS_MODE_INFRA) {
6046 freqs_data[i].flags |= ifs->current_ssid->p2p_group ?
6047 WPA_FREQ_USED_BY_P2P_CLIENT :
6048 WPA_FREQ_USED_BY_INFRA_STATION;
6052 dump_freq_data(wpa_s, "completed iteration", freqs_data, idx);
6058 * Find the operating frequencies of any of the virtual interfaces that
6059 * are using the same radio as the current interface.
6061 int get_shared_radio_freqs(struct wpa_supplicant *wpa_s,
6062 int *freq_array, unsigned int len)
6064 struct wpa_used_freq_data *freqs_data;
6067 os_memset(freq_array, 0, sizeof(int) * len);
6069 freqs_data = os_calloc(len, sizeof(struct wpa_used_freq_data));
6073 num = get_shared_radio_freqs_data(wpa_s, freqs_data, len);
6074 for (i = 0; i < num; i++)
6075 freq_array[i] = freqs_data[i].freq;
6077 os_free(freqs_data);
6083 static void wpas_rrm_neighbor_rep_timeout_handler(void *data, void *user_ctx)
6085 struct rrm_data *rrm = data;
6087 if (!rrm->notify_neighbor_rep) {
6088 wpa_printf(MSG_ERROR,
6089 "RRM: Unexpected neighbor report timeout");
6093 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report - NONE");
6094 rrm->notify_neighbor_rep(rrm->neighbor_rep_cb_ctx, NULL);
6096 rrm->notify_neighbor_rep = NULL;
6097 rrm->neighbor_rep_cb_ctx = NULL;
6102 * wpas_rrm_reset - Clear and reset all RRM data in wpa_supplicant
6103 * @wpa_s: Pointer to wpa_supplicant
6105 void wpas_rrm_reset(struct wpa_supplicant *wpa_s)
6107 wpa_s->rrm.rrm_used = 0;
6109 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
6111 if (wpa_s->rrm.notify_neighbor_rep)
6112 wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL);
6113 wpa_s->rrm.next_neighbor_rep_token = 1;
6118 * wpas_rrm_process_neighbor_rep - Handle incoming neighbor report
6119 * @wpa_s: Pointer to wpa_supplicant
6120 * @report: Neighbor report buffer, prefixed by a 1-byte dialog token
6121 * @report_len: Length of neighbor report buffer
6123 void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
6124 const u8 *report, size_t report_len)
6126 struct wpabuf *neighbor_rep;
6128 wpa_hexdump(MSG_DEBUG, "RRM: New Neighbor Report", report, report_len);
6132 if (report[0] != wpa_s->rrm.next_neighbor_rep_token - 1) {
6133 wpa_printf(MSG_DEBUG,
6134 "RRM: Discarding neighbor report with token %d (expected %d)",
6135 report[0], wpa_s->rrm.next_neighbor_rep_token - 1);
6139 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
6142 if (!wpa_s->rrm.notify_neighbor_rep) {
6143 wpa_printf(MSG_ERROR, "RRM: Unexpected neighbor report");
6147 /* skipping the first byte, which is only an id (dialog token) */
6148 neighbor_rep = wpabuf_alloc(report_len - 1);
6149 if (neighbor_rep == NULL)
6151 wpabuf_put_data(neighbor_rep, report + 1, report_len - 1);
6152 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report (token = %d)",
6154 wpa_s->rrm.notify_neighbor_rep(wpa_s->rrm.neighbor_rep_cb_ctx,
6156 wpa_s->rrm.notify_neighbor_rep = NULL;
6157 wpa_s->rrm.neighbor_rep_cb_ctx = NULL;
6161 #if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
6162 /* Workaround different, undefined for Windows, error codes used here */
6164 #define EOPNOTSUPP -1
6165 #define ECANCELED -1
6168 /* Measurement Request element + Location Subject + Maximum Age subelement */
6169 #define MEASURE_REQUEST_LCI_LEN (3 + 1 + 4)
6170 /* Measurement Request element + Location Civic Request */
6171 #define MEASURE_REQUEST_CIVIC_LEN (3 + 5)
6175 * wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP
6176 * @wpa_s: Pointer to wpa_supplicant
6177 * @ssid: if not null, this is sent in the request. Otherwise, no SSID IE
6178 * is sent in the request.
6179 * @lci: if set, neighbor request will include LCI request
6180 * @civic: if set, neighbor request will include civic location request
6181 * @cb: Callback function to be called once the requested report arrives, or
6182 * timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds.
6183 * In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's
6184 * the requester's responsibility to free it.
6185 * In the latter case NULL will be sent in 'neighbor_rep'.
6186 * @cb_ctx: Context value to send the callback function
6187 * Returns: 0 in case of success, negative error code otherwise
6189 * In case there is a previous request which has not been answered yet, the
6190 * new request fails. The caller may retry after RRM_NEIGHBOR_REPORT_TIMEOUT.
6191 * Request must contain a callback function.
6193 int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
6194 const struct wpa_ssid_value *ssid,
6196 void (*cb)(void *ctx,
6197 struct wpabuf *neighbor_rep),
6203 if (wpa_s->wpa_state != WPA_COMPLETED || wpa_s->current_ssid == NULL) {
6204 wpa_printf(MSG_DEBUG, "RRM: No connection, no RRM.");
6208 if (!wpa_s->rrm.rrm_used) {
6209 wpa_printf(MSG_DEBUG, "RRM: No RRM in current connection.");
6213 rrm_ie = wpa_bss_get_ie(wpa_s->current_bss,
6214 WLAN_EID_RRM_ENABLED_CAPABILITIES);
6215 if (!rrm_ie || !(wpa_s->current_bss->caps & IEEE80211_CAP_RRM) ||
6216 !(rrm_ie[2] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
6217 wpa_printf(MSG_DEBUG,
6218 "RRM: No network support for Neighbor Report.");
6223 wpa_printf(MSG_DEBUG,
6224 "RRM: Neighbor Report request must provide a callback.");
6228 /* Refuse if there's a live request */
6229 if (wpa_s->rrm.notify_neighbor_rep) {
6230 wpa_printf(MSG_DEBUG,
6231 "RRM: Currently handling previous Neighbor Report.");
6235 /* 3 = action category + action code + dialog token */
6236 buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0) +
6237 (lci ? 2 + MEASURE_REQUEST_LCI_LEN : 0) +
6238 (civic ? 2 + MEASURE_REQUEST_CIVIC_LEN : 0));
6240 wpa_printf(MSG_DEBUG,
6241 "RRM: Failed to allocate Neighbor Report Request");
6245 wpa_printf(MSG_DEBUG, "RRM: Neighbor report request (for %s), token=%d",
6246 (ssid ? wpa_ssid_txt(ssid->ssid, ssid->ssid_len) : ""),
6247 wpa_s->rrm.next_neighbor_rep_token);
6249 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6250 wpabuf_put_u8(buf, WLAN_RRM_NEIGHBOR_REPORT_REQUEST);
6251 wpabuf_put_u8(buf, wpa_s->rrm.next_neighbor_rep_token);
6253 wpabuf_put_u8(buf, WLAN_EID_SSID);
6254 wpabuf_put_u8(buf, ssid->ssid_len);
6255 wpabuf_put_data(buf, ssid->ssid, ssid->ssid_len);
6259 /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
6260 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
6261 wpabuf_put_u8(buf, MEASURE_REQUEST_LCI_LEN);
6264 * Measurement token; nonzero number that is unique among the
6265 * Measurement Request elements in a particular frame.
6267 wpabuf_put_u8(buf, 1); /* Measurement Token */
6270 * Parallel, Enable, Request, and Report bits are 0, Duration is
6273 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
6274 wpabuf_put_u8(buf, MEASURE_TYPE_LCI); /* Measurement Type */
6276 /* IEEE P802.11-REVmc/D5.0 9.4.2.21.10 - LCI request */
6277 /* Location Subject */
6278 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
6280 /* Optional Subelements */
6282 * IEEE P802.11-REVmc/D5.0 Figure 9-170
6283 * The Maximum Age subelement is required, otherwise the AP can
6284 * send only data that was determined after receiving the
6285 * request. Setting it here to unlimited age.
6287 wpabuf_put_u8(buf, LCI_REQ_SUBELEM_MAX_AGE);
6288 wpabuf_put_u8(buf, 2);
6289 wpabuf_put_le16(buf, 0xffff);
6293 /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
6294 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
6295 wpabuf_put_u8(buf, MEASURE_REQUEST_CIVIC_LEN);
6298 * Measurement token; nonzero number that is unique among the
6299 * Measurement Request elements in a particular frame.
6301 wpabuf_put_u8(buf, 2); /* Measurement Token */
6304 * Parallel, Enable, Request, and Report bits are 0, Duration is
6307 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
6308 /* Measurement Type */
6309 wpabuf_put_u8(buf, MEASURE_TYPE_LOCATION_CIVIC);
6311 /* IEEE P802.11-REVmc/D5.0 9.4.2.21.14:
6312 * Location Civic request */
6313 /* Location Subject */
6314 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
6315 wpabuf_put_u8(buf, 0); /* Civic Location Type: IETF RFC 4776 */
6316 /* Location Service Interval Units: Seconds */
6317 wpabuf_put_u8(buf, 0);
6318 /* Location Service Interval: 0 - Only one report is requested
6320 wpabuf_put_le16(buf, 0);
6321 /* No optional subelements */
6324 wpa_s->rrm.next_neighbor_rep_token++;
6326 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
6327 wpa_s->own_addr, wpa_s->bssid,
6328 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
6329 wpa_printf(MSG_DEBUG,
6330 "RRM: Failed to send Neighbor Report Request");
6335 wpa_s->rrm.neighbor_rep_cb_ctx = cb_ctx;
6336 wpa_s->rrm.notify_neighbor_rep = cb;
6337 eloop_register_timeout(RRM_NEIGHBOR_REPORT_TIMEOUT, 0,
6338 wpas_rrm_neighbor_rep_timeout_handler,
6346 static struct wpabuf * wpas_rrm_build_lci_report(struct wpa_supplicant *wpa_s,
6347 const u8 *request, size_t len,
6348 struct wpabuf *report)
6350 u8 token, type, subject;
6352 struct os_reltime t, diff;
6353 unsigned long diff_l;
6357 if (!wpa_s->lci || len < 3 + 4)
6361 /* Measurement request mode isn't used */
6364 subject = *request++;
6366 wpa_printf(MSG_DEBUG,
6367 "Measurement request token %u type %u location subject %u",
6368 token, type, subject);
6370 if (type != MEASURE_TYPE_LCI || subject != LOCATION_SUBJECT_REMOTE) {
6371 wpa_printf(MSG_INFO,
6372 "Not building LCI report - bad type or location subject");
6376 /* Subelements are formatted exactly like elements */
6377 subelem = get_ie(request, len, LCI_REQ_SUBELEM_MAX_AGE);
6378 if (subelem && subelem[1] == 2)
6379 max_age = WPA_GET_LE16(subelem + 2);
6381 if (os_get_reltime(&t))
6384 os_reltime_sub(&t, &wpa_s->lci_time, &diff);
6385 /* LCI age is calculated in 10th of a second units. */
6386 diff_l = diff.sec * 10 + diff.usec / 100000;
6388 if (max_age != 0xffff && max_age < diff_l)
6391 if (wpabuf_resize(&report, 2 + wpabuf_len(wpa_s->lci)))
6394 wpabuf_put_u8(report, WLAN_EID_MEASURE_REPORT);
6395 wpabuf_put_u8(report, wpabuf_len(wpa_s->lci));
6396 /* We'll override user's measurement token */
6397 ptoken = wpabuf_put(report, 0);
6398 wpabuf_put_buf(report, wpa_s->lci);
6405 void wpas_rrm_handle_radio_measurement_request(struct wpa_supplicant *wpa_s,
6407 const u8 *frame, size_t len)
6409 struct wpabuf *buf, *report;
6413 if (wpa_s->wpa_state != WPA_COMPLETED) {
6414 wpa_printf(MSG_INFO,
6415 "RRM: Ignoring radio measurement request: Not associated");
6419 if (!wpa_s->rrm.rrm_used) {
6420 wpa_printf(MSG_INFO,
6421 "RRM: Ignoring radio measurement request: Not RRM network");
6426 wpa_printf(MSG_INFO,
6427 "RRM: Ignoring too short radio measurement request");
6435 /* Ignore number of repetitions because it's not used in LCI request */
6439 while ((ie = get_ie(frame, end - frame, WLAN_EID_MEASURE_REQUEST)) &&
6444 wpa_printf(MSG_DEBUG, "RRM request %d", msmt_type);
6446 switch (msmt_type) {
6447 case MEASURE_TYPE_LCI:
6448 report = wpas_rrm_build_lci_report(wpa_s, ie + 2, ie[1],
6452 wpa_printf(MSG_INFO,
6453 "RRM: Unsupported radio measurement request %d",
6458 frame = ie + ie[1] + 2;
6464 buf = wpabuf_alloc(3 + wpabuf_len(report));
6466 wpabuf_free(report);
6470 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6471 wpabuf_put_u8(buf, WLAN_RRM_RADIO_MEASUREMENT_REPORT);
6472 wpabuf_put_u8(buf, token);
6474 wpabuf_put_buf(buf, report);
6475 wpabuf_free(report);
6477 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
6478 wpa_s->own_addr, wpa_s->bssid,
6479 wpabuf_head(buf), wpabuf_len(buf), 0)) {
6480 wpa_printf(MSG_ERROR,
6481 "RRM: Radio measurement report failed: Sending Action frame failed");
6487 void wpas_rrm_handle_link_measurement_request(struct wpa_supplicant *wpa_s,
6489 const u8 *frame, size_t len,
6493 const struct rrm_link_measurement_request *req;
6494 struct rrm_link_measurement_report report;
6496 if (wpa_s->wpa_state != WPA_COMPLETED) {
6497 wpa_printf(MSG_INFO,
6498 "RRM: Ignoring link measurement request. Not associated");
6502 if (!wpa_s->rrm.rrm_used) {
6503 wpa_printf(MSG_INFO,
6504 "RRM: Ignoring link measurement request. Not RRM network");
6508 if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)) {
6509 wpa_printf(MSG_INFO,
6510 "RRM: Measurement report failed. TX power insertion not supported");
6514 req = (const struct rrm_link_measurement_request *) frame;
6515 if (len < sizeof(*req)) {
6516 wpa_printf(MSG_INFO,
6517 "RRM: Link measurement report failed. Request too short");
6521 os_memset(&report, 0, sizeof(report));
6522 report.tpc.eid = WLAN_EID_TPC_REPORT;
6524 report.rsni = 255; /* 255 indicates that RSNI is not available */
6525 report.dialog_token = req->dialog_token;
6528 * It's possible to estimate RCPI based on RSSI in dBm. This
6529 * calculation will not reflect the correct value for high rates,
6530 * but it's good enough for Action frames which are transmitted
6531 * with up to 24 Mbps rates.
6534 report.rcpi = 255; /* not available */
6535 else if (rssi < -110)
6540 report.rcpi = (rssi + 110) * 2;
6542 /* action_category + action_code */
6543 buf = wpabuf_alloc(2 + sizeof(report));
6545 wpa_printf(MSG_ERROR,
6546 "RRM: Link measurement report failed. Buffer allocation failed");
6550 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6551 wpabuf_put_u8(buf, WLAN_RRM_LINK_MEASUREMENT_REPORT);
6552 wpabuf_put_data(buf, &report, sizeof(report));
6553 wpa_hexdump(MSG_DEBUG, "RRM: Link measurement report:",
6554 wpabuf_head(buf), wpabuf_len(buf));
6556 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
6557 wpa_s->own_addr, wpa_s->bssid,
6558 wpabuf_head(buf), wpabuf_len(buf), 0)) {
6559 wpa_printf(MSG_ERROR,
6560 "RRM: Link measurement report failed. Send action failed");
6566 struct wpa_supplicant *
6567 wpas_vendor_elem(struct wpa_supplicant *wpa_s, enum wpa_vendor_elem_frame frame)
6571 case VENDOR_ELEM_PROBE_REQ_P2P:
6572 case VENDOR_ELEM_PROBE_RESP_P2P:
6573 case VENDOR_ELEM_PROBE_RESP_P2P_GO:
6574 case VENDOR_ELEM_BEACON_P2P_GO:
6575 case VENDOR_ELEM_P2P_PD_REQ:
6576 case VENDOR_ELEM_P2P_PD_RESP:
6577 case VENDOR_ELEM_P2P_GO_NEG_REQ:
6578 case VENDOR_ELEM_P2P_GO_NEG_RESP:
6579 case VENDOR_ELEM_P2P_GO_NEG_CONF:
6580 case VENDOR_ELEM_P2P_INV_REQ:
6581 case VENDOR_ELEM_P2P_INV_RESP:
6582 case VENDOR_ELEM_P2P_ASSOC_REQ:
6583 case VENDOR_ELEM_P2P_ASSOC_RESP:
6584 return wpa_s->p2pdev;
6585 #endif /* CONFIG_P2P */
6592 void wpas_vendor_elem_update(struct wpa_supplicant *wpa_s)
6597 wpa_printf(MSG_DEBUG, "Update vendor elements");
6599 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) {
6600 if (wpa_s->vendor_elem[i]) {
6603 res = os_snprintf(buf, sizeof(buf), "frame[%u]", i);
6604 if (!os_snprintf_error(sizeof(buf), res)) {
6605 wpa_hexdump_buf(MSG_DEBUG, buf,
6606 wpa_s->vendor_elem[i]);
6612 if (wpa_s->parent == wpa_s &&
6613 wpa_s->global->p2p &&
6614 !wpa_s->global->p2p_disabled)
6615 p2p_set_vendor_elems(wpa_s->global->p2p, wpa_s->vendor_elem);
6616 #endif /* CONFIG_P2P */
6620 int wpas_vendor_elem_remove(struct wpa_supplicant *wpa_s, int frame,
6621 const u8 *elem, size_t len)
6625 ie = wpabuf_mhead_u8(wpa_s->vendor_elem[frame]);
6626 end = ie + wpabuf_len(wpa_s->vendor_elem[frame]);
6628 for (; ie + 1 < end; ie += 2 + ie[1]) {
6631 if (os_memcmp(ie, elem, len) != 0)
6634 if (wpabuf_len(wpa_s->vendor_elem[frame]) == len) {
6635 wpabuf_free(wpa_s->vendor_elem[frame]);
6636 wpa_s->vendor_elem[frame] = NULL;
6638 os_memmove(ie, ie + len, end - (ie + len));
6639 wpa_s->vendor_elem[frame]->used -= len;
6641 wpas_vendor_elem_update(wpa_s);
6649 struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
6650 u16 num_modes, enum hostapd_hw_mode mode)
6654 for (i = 0; i < num_modes; i++) {
6655 if (modes[i].mode == mode)
6664 wpa_bss_tmp_disallowed * wpas_get_disallowed_bss(struct wpa_supplicant *wpa_s,
6667 struct wpa_bss_tmp_disallowed *bss;
6669 dl_list_for_each(bss, &wpa_s->bss_tmp_disallowed,
6670 struct wpa_bss_tmp_disallowed, list) {
6671 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) == 0)
6679 void wpa_bss_tmp_disallow(struct wpa_supplicant *wpa_s, const u8 *bssid,
6682 struct wpa_bss_tmp_disallowed *bss;
6683 struct os_reltime until;
6685 os_get_reltime(&until);
6688 bss = wpas_get_disallowed_bss(wpa_s, bssid);
6690 bss->disallowed_until = until;
6694 bss = os_malloc(sizeof(*bss));
6696 wpa_printf(MSG_DEBUG,
6697 "Failed to allocate memory for temp disallow BSS");
6701 bss->disallowed_until = until;
6702 os_memcpy(bss->bssid, bssid, ETH_ALEN);
6703 dl_list_add(&wpa_s->bss_tmp_disallowed, &bss->list);
6707 int wpa_is_bss_tmp_disallowed(struct wpa_supplicant *wpa_s, const u8 *bssid)
6709 struct wpa_bss_tmp_disallowed *bss = NULL, *tmp, *prev;
6710 struct os_reltime now, age;
6712 os_get_reltime(&now);
6714 dl_list_for_each_safe(tmp, prev, &wpa_s->bss_tmp_disallowed,
6715 struct wpa_bss_tmp_disallowed, list) {
6716 if (!os_reltime_before(&now, &tmp->disallowed_until)) {
6717 /* This BSS is not disallowed anymore */
6718 dl_list_del(&tmp->list);
6722 if (os_memcmp(bssid, tmp->bssid, ETH_ALEN) == 0) {
6730 os_reltime_sub(&bss->disallowed_until, &now, &age);
6731 wpa_printf(MSG_DEBUG,
6732 "BSS " MACSTR " disabled for %ld.%0ld seconds",
6733 MAC2STR(bss->bssid), age.sec, age.usec);