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 #ifdef CONFIG_HT_OVERRIDES
1877 if (ssid->disable_ht) {
1878 freq->ht_enabled = 0;
1881 #endif /* CONFIG_HT_OVERRIDES */
1883 freq->ht_enabled = ht_supported(mode);
1884 if (!freq->ht_enabled)
1887 /* Setup higher BW only for 5 GHz */
1888 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
1891 for (chan_idx = 0; chan_idx < mode->num_channels; chan_idx++) {
1892 pri_chan = &mode->channels[chan_idx];
1893 if (pri_chan->chan == channel)
1900 /* Check primary channel flags */
1901 if (pri_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1904 #ifdef CONFIG_HT_OVERRIDES
1905 if (ssid->disable_ht40)
1907 #endif /* CONFIG_HT_OVERRIDES */
1909 /* Check/setup HT40+/HT40- */
1910 for (j = 0; j < ARRAY_SIZE(ht40plus); j++) {
1911 if (ht40plus[j] == channel) {
1917 /* Find secondary channel */
1918 for (i = 0; i < mode->num_channels; i++) {
1919 sec_chan = &mode->channels[i];
1920 if (sec_chan->chan == channel + ht40 * 4)
1927 /* Check secondary channel flags */
1928 if (sec_chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
1931 freq->channel = pri_chan->chan;
1934 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40MINUS))
1937 if (!(pri_chan->flag & HOSTAPD_CHAN_HT40PLUS))
1940 freq->sec_channel_offset = ht40;
1943 struct wpa_scan_results *scan_res;
1945 scan_res = wpa_supplicant_get_scan_results(wpa_s, NULL, 0);
1946 if (scan_res == NULL) {
1948 freq->sec_channel_offset = 0;
1952 res = check_40mhz_5g(mode, scan_res, pri_chan->chan,
1957 freq->sec_channel_offset = 0;
1960 /* Configuration allowed */
1963 /* Switch pri/sec channels */
1964 freq->freq = hw_get_freq(mode, sec_chan->chan);
1965 freq->sec_channel_offset = -freq->sec_channel_offset;
1966 freq->channel = sec_chan->chan;
1969 freq->sec_channel_offset = 0;
1973 wpa_scan_results_free(scan_res);
1976 wpa_printf(MSG_DEBUG,
1977 "IBSS/mesh: setup freq channel %d, sec_channel_offset %d",
1978 freq->channel, freq->sec_channel_offset);
1980 if (!drv_supports_vht(wpa_s, ssid))
1983 /* For IBSS check VHT_IBSS flag */
1984 if (ssid->mode == WPAS_MODE_IBSS &&
1985 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_VHT_IBSS))
1990 vht_freq.vht_enabled = vht_supported(mode);
1991 if (!vht_freq.vht_enabled)
1994 /* setup center_freq1, bandwidth */
1995 for (j = 0; j < ARRAY_SIZE(vht80); j++) {
1996 if (freq->channel >= vht80[j] &&
1997 freq->channel < vht80[j] + 16)
2001 if (j == ARRAY_SIZE(vht80))
2004 for (i = vht80[j]; i < vht80[j] + 16; i += 4) {
2005 struct hostapd_channel_data *chan;
2007 chan = hw_get_channel_chan(mode, i, NULL);
2011 /* Back to HT configuration if channel not usable */
2012 if (chan->flag & (HOSTAPD_CHAN_DISABLED | HOSTAPD_CHAN_NO_IR))
2016 chwidth = VHT_CHANWIDTH_80MHZ;
2017 seg0 = vht80[j] + 6;
2020 if (ssid->max_oper_chwidth == VHT_CHANWIDTH_80P80MHZ) {
2021 /* setup center_freq2, bandwidth */
2022 for (k = 0; k < ARRAY_SIZE(vht80); k++) {
2023 /* Only accept 80 MHz segments separated by a gap */
2024 if (j == k || abs(vht80[j] - vht80[k]) == 16)
2026 for (i = vht80[k]; i < vht80[k] + 16; i += 4) {
2027 struct hostapd_channel_data *chan;
2029 chan = hw_get_channel_chan(mode, i, NULL);
2033 if (chan->flag & (HOSTAPD_CHAN_DISABLED |
2034 HOSTAPD_CHAN_NO_IR |
2035 HOSTAPD_CHAN_RADAR))
2038 /* Found a suitable second segment for 80+80 */
2039 chwidth = VHT_CHANWIDTH_80P80MHZ;
2041 VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
2042 seg1 = vht80[k] + 6;
2045 if (chwidth == VHT_CHANWIDTH_80P80MHZ)
2048 } else if (ssid->max_oper_chwidth == VHT_CHANWIDTH_160MHZ) {
2049 if (freq->freq == 5180) {
2050 chwidth = VHT_CHANWIDTH_160MHZ;
2051 vht_caps |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
2053 } else if (freq->freq == 5520) {
2054 chwidth = VHT_CHANWIDTH_160MHZ;
2055 vht_caps |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
2060 if (hostapd_set_freq_params(&vht_freq, mode->mode, freq->freq,
2061 freq->channel, freq->ht_enabled,
2062 vht_freq.vht_enabled,
2063 freq->sec_channel_offset,
2064 chwidth, seg0, seg1, vht_caps) != 0)
2069 wpa_printf(MSG_DEBUG, "IBSS: VHT setup freq cf1 %d, cf2 %d, bw %d",
2070 freq->center_freq1, freq->center_freq2, freq->bandwidth);
2074 static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)
2076 struct wpa_connect_work *cwork = work->ctx;
2077 struct wpa_bss *bss = cwork->bss;
2078 struct wpa_ssid *ssid = cwork->ssid;
2079 struct wpa_supplicant *wpa_s = work->wpa_s;
2082 int use_crypt, ret, i, bssid_changed;
2083 int algs = WPA_AUTH_ALG_OPEN;
2084 unsigned int cipher_pairwise, cipher_group;
2085 struct wpa_driver_associate_params params;
2086 int wep_keys_set = 0;
2087 int assoc_failed = 0;
2088 struct wpa_ssid *old_ssid;
2089 u8 prev_bssid[ETH_ALEN];
2090 #ifdef CONFIG_HT_OVERRIDES
2091 struct ieee80211_ht_capabilities htcaps;
2092 struct ieee80211_ht_capabilities htcaps_mask;
2093 #endif /* CONFIG_HT_OVERRIDES */
2094 #ifdef CONFIG_VHT_OVERRIDES
2095 struct ieee80211_vht_capabilities vhtcaps;
2096 struct ieee80211_vht_capabilities vhtcaps_mask;
2097 #endif /* CONFIG_VHT_OVERRIDES */
2099 const u8 *mbo = NULL;
2100 #endif /* CONFIG_MBO */
2103 if (work->started) {
2104 wpa_s->connect_work = NULL;
2106 /* cancel possible auth. timeout */
2107 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s,
2110 wpas_connect_work_free(cwork);
2114 wpa_s->connect_work = work;
2116 if (cwork->bss_removed || !wpas_valid_bss_ssid(wpa_s, bss, ssid) ||
2117 wpas_network_disabled(wpa_s, ssid)) {
2118 wpa_dbg(wpa_s, MSG_DEBUG, "BSS/SSID entry for association not valid anymore - drop connection attempt");
2119 wpas_connect_work_done(wpa_s);
2123 os_memcpy(prev_bssid, wpa_s->bssid, ETH_ALEN);
2124 os_memset(¶ms, 0, sizeof(params));
2125 wpa_s->reassociate = 0;
2126 wpa_s->eap_expected_failure = 0;
2128 (!wpas_driver_bss_selection(wpa_s) || wpas_wps_searching(wpa_s))) {
2129 #ifdef CONFIG_IEEE80211R
2130 const u8 *ie, *md = NULL;
2131 #endif /* CONFIG_IEEE80211R */
2132 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
2133 " (SSID='%s' freq=%d MHz)", MAC2STR(bss->bssid),
2134 wpa_ssid_txt(bss->ssid, bss->ssid_len), bss->freq);
2135 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
2136 os_memset(wpa_s->bssid, 0, ETH_ALEN);
2137 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
2139 wpas_notify_bssid_changed(wpa_s);
2140 #ifdef CONFIG_IEEE80211R
2141 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
2142 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
2144 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
2146 /* Prepare for the next transition */
2147 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
2149 #endif /* CONFIG_IEEE80211R */
2151 } else if ((ssid->ssid == NULL || ssid->ssid_len == 0) &&
2152 wpa_s->conf->ap_scan == 2 &&
2153 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
2154 /* Use ap_scan==1 style network selection to find the network
2156 wpas_connect_work_done(wpa_s);
2157 wpa_s->scan_req = MANUAL_SCAN_REQ;
2158 wpa_s->reassociate = 1;
2159 wpa_supplicant_req_scan(wpa_s, 0, 0);
2161 #endif /* CONFIG_WPS */
2163 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with SSID '%s'",
2164 wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2165 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2168 wpa_supplicant_cancel_sched_scan(wpa_s);
2170 wpa_supplicant_cancel_scan(wpa_s);
2172 /* Starting new association, so clear the possibly used WPA IE from the
2173 * previous association. */
2174 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2176 #ifdef IEEE8021X_EAPOL
2177 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2179 if (ssid->non_leap == 0)
2180 algs = WPA_AUTH_ALG_LEAP;
2182 algs |= WPA_AUTH_ALG_LEAP;
2185 #endif /* IEEE8021X_EAPOL */
2186 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x", algs);
2187 if (ssid->auth_alg) {
2188 algs = ssid->auth_alg;
2189 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
2193 if (bss && (wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
2194 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
2195 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
2196 int try_opportunistic;
2197 try_opportunistic = (ssid->proactive_key_caching < 0 ?
2199 ssid->proactive_key_caching) &&
2200 (ssid->proto & WPA_PROTO_RSN);
2201 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
2202 ssid, try_opportunistic) == 0)
2203 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
2204 wpa_ie_len = sizeof(wpa_ie);
2205 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
2206 wpa_ie, &wpa_ie_len)) {
2207 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2208 "key management and encryption suites");
2209 wpas_connect_work_done(wpa_s);
2212 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && bss &&
2213 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
2215 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
2216 * use non-WPA since the scan results did not indicate that the
2217 * AP is using WPA or WPA2.
2219 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2221 wpa_s->wpa_proto = 0;
2222 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
2223 wpa_ie_len = sizeof(wpa_ie);
2224 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
2225 wpa_ie, &wpa_ie_len)) {
2226 wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to set WPA "
2227 "key management and encryption suites (no "
2229 wpas_connect_work_done(wpa_s);
2233 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2234 struct wpabuf *wps_ie;
2235 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
2236 if (wps_ie && wpabuf_len(wps_ie) <= sizeof(wpa_ie)) {
2237 wpa_ie_len = wpabuf_len(wps_ie);
2238 os_memcpy(wpa_ie, wpabuf_head(wps_ie), wpa_ie_len);
2241 wpabuf_free(wps_ie);
2242 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2243 if (!bss || (bss->caps & IEEE80211_CAP_PRIVACY))
2244 params.wps = WPS_MODE_PRIVACY;
2246 params.wps = WPS_MODE_OPEN;
2247 wpa_s->wpa_proto = 0;
2248 #endif /* CONFIG_WPS */
2250 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
2252 wpa_s->wpa_proto = 0;
2256 if (wpa_s->global->p2p) {
2260 pos = wpa_ie + wpa_ie_len;
2261 len = sizeof(wpa_ie) - wpa_ie_len;
2262 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
2268 wpa_s->cross_connect_disallowed = 0;
2271 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
2273 wpa_s->cross_connect_disallowed =
2274 p2p_get_cross_connect_disallowed(p2p);
2276 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: WLAN AP %s cross "
2278 wpa_s->cross_connect_disallowed ?
2279 "disallows" : "allows");
2283 os_memset(wpa_s->p2p_ip_addr_info, 0, sizeof(wpa_s->p2p_ip_addr_info));
2284 #endif /* CONFIG_P2P */
2288 mbo = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE);
2292 len = wpas_mbo_supp_op_class_ie(wpa_s, bss->freq,
2293 wpa_ie + wpa_ie_len,
2300 #endif /* CONFIG_MBO */
2303 * Workaround: Add Extended Capabilities element only if the AP
2304 * included this element in Beacon/Probe Response frames. Some older
2305 * APs seem to have interoperability issues if this element is
2306 * included, so while the standard may require us to include the
2307 * element in all cases, it is justifiable to skip it to avoid
2308 * interoperability issues.
2310 if (ssid->p2p_group)
2311 wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_CLIENT);
2313 wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION);
2315 if (!bss || wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB)) {
2318 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
2320 if (ext_capab_len > 0) {
2322 if (wpa_ie_len > 0 && pos[0] == WLAN_EID_RSN)
2324 os_memmove(pos + ext_capab_len, pos,
2325 wpa_ie_len - (pos - wpa_ie));
2326 wpa_ie_len += ext_capab_len;
2327 os_memcpy(pos, ext_capab, ext_capab_len);
2332 if (is_hs20_network(wpa_s, ssid, bss)) {
2333 struct wpabuf *hs20;
2335 hs20 = wpabuf_alloc(20);
2337 int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
2340 wpas_hs20_add_indication(hs20, pps_mo_id);
2341 len = sizeof(wpa_ie) - wpa_ie_len;
2342 if (wpabuf_len(hs20) <= len) {
2343 os_memcpy(wpa_ie + wpa_ie_len,
2344 wpabuf_head(hs20), wpabuf_len(hs20));
2345 wpa_ie_len += wpabuf_len(hs20);
2349 hs20_configure_frame_filters(wpa_s);
2352 #endif /* CONFIG_HS20 */
2354 if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
2355 struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
2358 len = sizeof(wpa_ie) - wpa_ie_len;
2359 if (wpabuf_len(buf) <= len) {
2360 os_memcpy(wpa_ie + wpa_ie_len,
2361 wpabuf_head(buf), wpabuf_len(buf));
2362 wpa_ie_len += wpabuf_len(buf);
2367 if (wpa_s->fst_ies) {
2368 int fst_ies_len = wpabuf_len(wpa_s->fst_ies);
2370 if (wpa_ie_len + fst_ies_len <= sizeof(wpa_ie)) {
2371 os_memcpy(wpa_ie + wpa_ie_len,
2372 wpabuf_head(wpa_s->fst_ies), fst_ies_len);
2373 wpa_ie_len += fst_ies_len;
2376 #endif /* CONFIG_FST */
2382 len = wpas_mbo_ie(wpa_s, wpa_ie + wpa_ie_len,
2383 sizeof(wpa_ie) - wpa_ie_len);
2387 #endif /* CONFIG_MBO */
2389 wpa_clear_keys(wpa_s, bss ? bss->bssid : NULL);
2391 cipher_pairwise = wpa_s->pairwise_cipher;
2392 cipher_group = wpa_s->group_cipher;
2393 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2394 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2395 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE)
2397 if (wpa_set_wep_keys(wpa_s, ssid)) {
2402 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)
2405 #ifdef IEEE8021X_EAPOL
2406 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2407 if ((ssid->eapol_flags &
2408 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
2409 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) == 0 &&
2413 /* Assume that dynamic WEP-104 keys will be used and
2414 * set cipher suites in order for drivers to expect
2416 cipher_pairwise = cipher_group = WPA_CIPHER_WEP104;
2419 #endif /* IEEE8021X_EAPOL */
2421 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2422 /* Set the key before (and later after) association */
2423 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2426 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
2428 params.ssid = bss->ssid;
2429 params.ssid_len = bss->ssid_len;
2430 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2431 wpa_printf(MSG_DEBUG, "Limit connection to BSSID "
2432 MACSTR " freq=%u MHz based on scan results "
2434 MAC2STR(bss->bssid), bss->freq,
2436 params.bssid = bss->bssid;
2437 params.freq.freq = bss->freq;
2439 params.bssid_hint = bss->bssid;
2440 params.freq_hint = bss->freq;
2441 params.pbss = bss_is_pbss(bss);
2443 params.ssid = ssid->ssid;
2444 params.ssid_len = ssid->ssid_len;
2445 params.pbss = (ssid->pbss != 2) ? ssid->pbss : 0;
2448 if (ssid->mode == WPAS_MODE_IBSS && ssid->bssid_set &&
2449 wpa_s->conf->ap_scan == 2) {
2450 params.bssid = ssid->bssid;
2451 params.fixed_bssid = 1;
2454 /* Initial frequency for IBSS/mesh */
2455 if ((ssid->mode == WPAS_MODE_IBSS || ssid->mode == WPAS_MODE_MESH) &&
2456 ssid->frequency > 0 && params.freq.freq == 0)
2457 ibss_mesh_setup_freq(wpa_s, ssid, ¶ms.freq);
2459 if (ssid->mode == WPAS_MODE_IBSS) {
2460 params.fixed_freq = ssid->fixed_freq;
2461 if (ssid->beacon_int)
2462 params.beacon_int = ssid->beacon_int;
2464 params.beacon_int = wpa_s->conf->beacon_int;
2467 params.wpa_ie = wpa_ie;
2468 params.wpa_ie_len = wpa_ie_len;
2469 params.pairwise_suite = cipher_pairwise;
2470 params.group_suite = cipher_group;
2471 params.key_mgmt_suite = wpa_s->key_mgmt;
2472 params.wpa_proto = wpa_s->wpa_proto;
2473 params.auth_alg = algs;
2474 params.mode = ssid->mode;
2475 params.bg_scan_period = ssid->bg_scan_period;
2476 for (i = 0; i < NUM_WEP_KEYS; i++) {
2477 if (ssid->wep_key_len[i])
2478 params.wep_key[i] = ssid->wep_key[i];
2479 params.wep_key_len[i] = ssid->wep_key_len[i];
2481 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
2483 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2484 (params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2485 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
2486 params.passphrase = ssid->passphrase;
2488 params.psk = ssid->psk;
2491 if (wpa_s->conf->key_mgmt_offload) {
2492 if (params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
2493 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
2494 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
2495 params.key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
2496 params.req_key_mgmt_offload =
2497 ssid->proactive_key_caching < 0 ?
2498 wpa_s->conf->okc : ssid->proactive_key_caching;
2500 params.req_key_mgmt_offload = 1;
2502 if ((params.key_mgmt_suite == WPA_KEY_MGMT_PSK ||
2503 params.key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
2504 params.key_mgmt_suite == WPA_KEY_MGMT_FT_PSK) &&
2506 params.psk = ssid->psk;
2509 params.drop_unencrypted = use_crypt;
2511 #ifdef CONFIG_IEEE80211W
2512 params.mgmt_frame_protection = wpas_get_ssid_pmf(wpa_s, ssid);
2513 if (params.mgmt_frame_protection != NO_MGMT_FRAME_PROTECTION && bss) {
2514 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
2515 struct wpa_ie_data ie;
2516 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ie) == 0 &&
2518 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
2519 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Selected AP supports "
2520 "MFP: require MFP");
2521 params.mgmt_frame_protection =
2522 MGMT_FRAME_PROTECTION_REQUIRED;
2525 #endif /* CONFIG_IEEE80211W */
2527 params.p2p = ssid->p2p_group;
2529 if (wpa_s->p2pdev->set_sta_uapsd)
2530 params.uapsd = wpa_s->p2pdev->sta_uapsd;
2534 #ifdef CONFIG_HT_OVERRIDES
2535 os_memset(&htcaps, 0, sizeof(htcaps));
2536 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
2537 params.htcaps = (u8 *) &htcaps;
2538 params.htcaps_mask = (u8 *) &htcaps_mask;
2539 wpa_supplicant_apply_ht_overrides(wpa_s, ssid, ¶ms);
2540 #endif /* CONFIG_HT_OVERRIDES */
2541 #ifdef CONFIG_VHT_OVERRIDES
2542 os_memset(&vhtcaps, 0, sizeof(vhtcaps));
2543 os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
2544 params.vhtcaps = &vhtcaps;
2545 params.vhtcaps_mask = &vhtcaps_mask;
2546 wpa_supplicant_apply_vht_overrides(wpa_s, ssid, ¶ms);
2547 #endif /* CONFIG_VHT_OVERRIDES */
2551 * If multi-channel concurrency is not supported, check for any
2552 * frequency conflict. In case of any frequency conflict, remove the
2553 * least prioritized connection.
2555 if (wpa_s->num_multichan_concurrent < 2) {
2557 num = get_shared_radio_freqs(wpa_s, &freq, 1);
2558 if (num > 0 && freq > 0 && freq != params.freq.freq) {
2559 wpa_printf(MSG_DEBUG,
2560 "Assoc conflicting freq found (%d != %d)",
2561 freq, params.freq.freq);
2562 if (wpas_p2p_handle_frequency_conflicts(
2563 wpa_s, params.freq.freq, ssid) < 0) {
2564 wpas_connect_work_done(wpa_s);
2569 #endif /* CONFIG_P2P */
2571 if (wpa_s->reassoc_same_ess && !is_zero_ether_addr(prev_bssid) &&
2572 wpa_s->current_ssid)
2573 params.prev_bssid = prev_bssid;
2575 ret = wpa_drv_associate(wpa_s, ¶ms);
2577 wpa_msg(wpa_s, MSG_INFO, "Association request to the driver "
2579 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) {
2581 * The driver is known to mean what is saying, so we
2582 * can stop right here; the association will not
2585 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
2586 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2587 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2590 /* try to continue anyway; new association will be tried again
2595 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2596 /* Set the key after the association just in case association
2597 * cleared the previously configured key. */
2598 wpa_supplicant_set_wpa_none_key(wpa_s, ssid);
2599 /* No need to timeout authentication since there is no key
2601 wpa_supplicant_cancel_auth_timeout(wpa_s);
2602 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2603 #ifdef CONFIG_IBSS_RSN
2604 } else if (ssid->mode == WPAS_MODE_IBSS &&
2605 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2606 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE) {
2608 * RSN IBSS authentication is per-STA and we can disable the
2609 * per-BSSID authentication.
2611 wpa_supplicant_cancel_auth_timeout(wpa_s);
2612 #endif /* CONFIG_IBSS_RSN */
2614 /* Timeout for IEEE 802.11 authentication and association */
2618 /* give IBSS a bit more time */
2619 timeout = ssid->mode == WPAS_MODE_IBSS ? 10 : 5;
2620 } else if (wpa_s->conf->ap_scan == 1) {
2621 /* give IBSS a bit more time */
2622 timeout = ssid->mode == WPAS_MODE_IBSS ? 20 : 10;
2624 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
2628 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC)) {
2629 /* Set static WEP keys again */
2630 wpa_set_wep_keys(wpa_s, ssid);
2633 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) {
2635 * Do not allow EAP session resumption between different
2636 * network configurations.
2638 eapol_sm_invalidate_cached_session(wpa_s->eapol);
2640 old_ssid = wpa_s->current_ssid;
2641 wpa_s->current_ssid = ssid;
2643 if (!wpas_driver_bss_selection(wpa_s) || ssid->bssid_set) {
2644 wpa_s->current_bss = bss;
2646 hs20_configure_frame_filters(wpa_s);
2647 #endif /* CONFIG_HS20 */
2650 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
2651 wpa_supplicant_initiate_eapol(wpa_s);
2652 if (old_ssid != wpa_s->current_ssid)
2653 wpas_notify_network_changed(wpa_s);
2657 static void wpa_supplicant_clear_connection(struct wpa_supplicant *wpa_s,
2660 struct wpa_ssid *old_ssid;
2662 wpas_connect_work_done(wpa_s);
2663 wpa_clear_keys(wpa_s, addr);
2664 old_ssid = wpa_s->current_ssid;
2665 wpa_supplicant_mark_disassoc(wpa_s);
2666 wpa_sm_set_config(wpa_s->wpa, NULL);
2667 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2668 if (old_ssid != wpa_s->current_ssid)
2669 wpas_notify_network_changed(wpa_s);
2670 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
2675 * wpa_supplicant_deauthenticate - Deauthenticate the current connection
2676 * @wpa_s: Pointer to wpa_supplicant data
2677 * @reason_code: IEEE 802.11 reason code for the deauthenticate frame
2679 * This function is used to request %wpa_supplicant to deauthenticate from the
2682 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
2686 union wpa_event_data event;
2689 wpa_dbg(wpa_s, MSG_DEBUG, "Request to deauthenticate - bssid=" MACSTR
2690 " pending_bssid=" MACSTR " reason=%d state=%s",
2691 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
2692 reason_code, wpa_supplicant_state_txt(wpa_s->wpa_state));
2694 if (!is_zero_ether_addr(wpa_s->bssid))
2695 addr = wpa_s->bssid;
2696 else if (!is_zero_ether_addr(wpa_s->pending_bssid) &&
2697 (wpa_s->wpa_state == WPA_AUTHENTICATING ||
2698 wpa_s->wpa_state == WPA_ASSOCIATING))
2699 addr = wpa_s->pending_bssid;
2700 else if (wpa_s->wpa_state == WPA_ASSOCIATING) {
2702 * When using driver-based BSS selection, we may not know the
2703 * BSSID with which we are currently trying to associate. We
2704 * need to notify the driver of this disconnection even in such
2705 * a case, so use the all zeros address here.
2707 addr = wpa_s->bssid;
2712 wpa_tdls_teardown_peers(wpa_s->wpa);
2713 #endif /* CONFIG_TDLS */
2717 wpa_msg(wpa_s, MSG_INFO, MESH_GROUP_REMOVED "%s",
2719 wpa_supplicant_leave_mesh(wpa_s);
2721 #endif /* CONFIG_MESH */
2724 wpa_drv_deauthenticate(wpa_s, addr, reason_code);
2725 os_memset(&event, 0, sizeof(event));
2726 event.deauth_info.reason_code = (u16) reason_code;
2727 event.deauth_info.locally_generated = 1;
2728 wpa_supplicant_event(wpa_s, EVENT_DEAUTH, &event);
2733 wpa_supplicant_clear_connection(wpa_s, addr);
2736 static void wpa_supplicant_enable_one_network(struct wpa_supplicant *wpa_s,
2737 struct wpa_ssid *ssid)
2739 if (!ssid || !ssid->disabled || ssid->disabled == 2)
2743 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2744 wpas_notify_network_enabled_changed(wpa_s, ssid);
2747 * Try to reassociate since there is no current configuration and a new
2748 * network was made available.
2750 if (!wpa_s->current_ssid && !wpa_s->disconnected)
2751 wpa_s->reassociate = 1;
2756 * wpa_supplicant_enable_network - Mark a configured network as enabled
2757 * @wpa_s: wpa_supplicant structure for a network interface
2758 * @ssid: wpa_ssid structure for a configured network or %NULL
2760 * Enables the specified network or all networks if no network specified.
2762 void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
2763 struct wpa_ssid *ssid)
2766 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
2767 wpa_supplicant_enable_one_network(wpa_s, ssid);
2769 wpa_supplicant_enable_one_network(wpa_s, ssid);
2771 if (wpa_s->reassociate && !wpa_s->disconnected &&
2772 (!wpa_s->current_ssid ||
2773 wpa_s->wpa_state == WPA_DISCONNECTED ||
2774 wpa_s->wpa_state == WPA_SCANNING)) {
2775 if (wpa_s->sched_scanning) {
2776 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan to add "
2777 "new network to scan filters");
2778 wpa_supplicant_cancel_sched_scan(wpa_s);
2781 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
2782 wpa_s->scan_req = NORMAL_SCAN_REQ;
2783 wpa_supplicant_req_scan(wpa_s, 0, 0);
2790 * wpa_supplicant_disable_network - Mark a configured network as disabled
2791 * @wpa_s: wpa_supplicant structure for a network interface
2792 * @ssid: wpa_ssid structure for a configured network or %NULL
2794 * Disables the specified network or all networks if no network specified.
2796 void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
2797 struct wpa_ssid *ssid)
2799 struct wpa_ssid *other_ssid;
2803 if (wpa_s->sched_scanning)
2804 wpa_supplicant_cancel_sched_scan(wpa_s);
2806 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2807 other_ssid = other_ssid->next) {
2808 was_disabled = other_ssid->disabled;
2809 if (was_disabled == 2)
2810 continue; /* do not change persistent P2P group
2813 other_ssid->disabled = 1;
2815 if (was_disabled != other_ssid->disabled)
2816 wpas_notify_network_enabled_changed(
2819 if (wpa_s->current_ssid)
2820 wpa_supplicant_deauthenticate(
2821 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2822 } else if (ssid->disabled != 2) {
2823 if (ssid == wpa_s->current_ssid)
2824 wpa_supplicant_deauthenticate(
2825 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2827 was_disabled = ssid->disabled;
2831 if (was_disabled != ssid->disabled) {
2832 wpas_notify_network_enabled_changed(wpa_s, ssid);
2833 if (wpa_s->sched_scanning) {
2834 wpa_printf(MSG_DEBUG, "Stop ongoing sched_scan "
2835 "to remove network from filters");
2836 wpa_supplicant_cancel_sched_scan(wpa_s);
2837 wpa_supplicant_req_scan(wpa_s, 0, 0);
2845 * wpa_supplicant_select_network - Attempt association with a network
2846 * @wpa_s: wpa_supplicant structure for a network interface
2847 * @ssid: wpa_ssid structure for a configured network or %NULL for any network
2849 void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
2850 struct wpa_ssid *ssid)
2853 struct wpa_ssid *other_ssid;
2854 int disconnected = 0;
2856 if (ssid && ssid != wpa_s->current_ssid && wpa_s->current_ssid) {
2857 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2858 wpa_s->own_disconnect_req = 1;
2859 wpa_supplicant_deauthenticate(
2860 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2865 wpas_clear_temp_disabled(wpa_s, ssid, 1);
2868 * Mark all other networks disabled or mark all networks enabled if no
2869 * network specified.
2871 for (other_ssid = wpa_s->conf->ssid; other_ssid;
2872 other_ssid = other_ssid->next) {
2873 int was_disabled = other_ssid->disabled;
2874 if (was_disabled == 2)
2875 continue; /* do not change persistent P2P group data */
2877 other_ssid->disabled = ssid ? (ssid->id != other_ssid->id) : 0;
2878 if (was_disabled && !other_ssid->disabled)
2879 wpas_clear_temp_disabled(wpa_s, other_ssid, 0);
2881 if (was_disabled != other_ssid->disabled)
2882 wpas_notify_network_enabled_changed(wpa_s, other_ssid);
2885 if (ssid && ssid == wpa_s->current_ssid && wpa_s->current_ssid &&
2886 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2887 /* We are already associated with the selected network */
2888 wpa_printf(MSG_DEBUG, "Already associated with the "
2889 "selected network - do nothing");
2894 wpa_s->current_ssid = ssid;
2895 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
2896 wpa_s->connect_without_scan =
2897 (ssid->mode == WPAS_MODE_MESH) ? ssid : NULL;
2900 * Don't optimize next scan freqs since a new ESS has been
2903 os_free(wpa_s->next_scan_freqs);
2904 wpa_s->next_scan_freqs = NULL;
2906 wpa_s->connect_without_scan = NULL;
2909 wpa_s->disconnected = 0;
2910 wpa_s->reassociate = 1;
2912 if (wpa_s->connect_without_scan ||
2913 wpa_supplicant_fast_associate(wpa_s) != 1) {
2914 wpa_s->scan_req = NORMAL_SCAN_REQ;
2915 wpa_supplicant_req_scan(wpa_s, 0, disconnected ? 100000 : 0);
2919 wpas_notify_network_selected(wpa_s, ssid);
2924 * wpas_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path
2925 * @wpa_s: wpa_supplicant structure for a network interface
2926 * @pkcs11_engine_path: PKCS #11 engine path or NULL
2927 * @pkcs11_module_path: PKCS #11 module path or NULL
2928 * Returns: 0 on success; -1 on failure
2930 * Sets the PKCS #11 engine and module path. Both have to be NULL or a valid
2931 * path. If resetting the EAPOL state machine with the new PKCS #11 engine and
2932 * module path fails the paths will be reset to the default value (NULL).
2934 int wpas_set_pkcs11_engine_and_module_path(struct wpa_supplicant *wpa_s,
2935 const char *pkcs11_engine_path,
2936 const char *pkcs11_module_path)
2938 char *pkcs11_engine_path_copy = NULL;
2939 char *pkcs11_module_path_copy = NULL;
2941 if (pkcs11_engine_path != NULL) {
2942 pkcs11_engine_path_copy = os_strdup(pkcs11_engine_path);
2943 if (pkcs11_engine_path_copy == NULL)
2946 if (pkcs11_module_path != NULL) {
2947 pkcs11_module_path_copy = os_strdup(pkcs11_module_path);
2948 if (pkcs11_module_path_copy == NULL) {
2949 os_free(pkcs11_engine_path_copy);
2954 os_free(wpa_s->conf->pkcs11_engine_path);
2955 os_free(wpa_s->conf->pkcs11_module_path);
2956 wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path_copy;
2957 wpa_s->conf->pkcs11_module_path = pkcs11_module_path_copy;
2959 wpa_sm_set_eapol(wpa_s->wpa, NULL);
2960 eapol_sm_deinit(wpa_s->eapol);
2961 wpa_s->eapol = NULL;
2962 if (wpa_supplicant_init_eapol(wpa_s)) {
2963 /* Error -> Reset paths to the default value (NULL) once. */
2964 if (pkcs11_engine_path != NULL && pkcs11_module_path != NULL)
2965 wpas_set_pkcs11_engine_and_module_path(wpa_s, NULL,
2970 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
2977 * wpa_supplicant_set_ap_scan - Set AP scan mode for interface
2978 * @wpa_s: wpa_supplicant structure for a network interface
2979 * @ap_scan: AP scan mode
2980 * Returns: 0 if succeed or -1 if ap_scan has an invalid value
2983 int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s, int ap_scan)
2988 if (ap_scan < 0 || ap_scan > 2)
2991 if (ap_scan == 2 && os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
2992 wpa_printf(MSG_INFO,
2993 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
2997 if (ap_scan == 2 && ap_scan != wpa_s->conf->ap_scan &&
2998 wpa_s->wpa_state >= WPA_ASSOCIATING &&
2999 wpa_s->wpa_state < WPA_COMPLETED) {
3000 wpa_printf(MSG_ERROR, "ap_scan = %d (%d) rejected while "
3001 "associating", wpa_s->conf->ap_scan, ap_scan);
3004 #endif /* ANDROID */
3006 old_ap_scan = wpa_s->conf->ap_scan;
3007 wpa_s->conf->ap_scan = ap_scan;
3009 if (old_ap_scan != wpa_s->conf->ap_scan)
3010 wpas_notify_ap_scan_changed(wpa_s);
3017 * wpa_supplicant_set_bss_expiration_age - Set BSS entry expiration age
3018 * @wpa_s: wpa_supplicant structure for a network interface
3019 * @expire_age: Expiration age in seconds
3020 * Returns: 0 if succeed or -1 if expire_age has an invalid value
3023 int wpa_supplicant_set_bss_expiration_age(struct wpa_supplicant *wpa_s,
3024 unsigned int bss_expire_age)
3026 if (bss_expire_age < 10) {
3027 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration age %u",
3031 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration age: %d sec",
3033 wpa_s->conf->bss_expiration_age = bss_expire_age;
3040 * wpa_supplicant_set_bss_expiration_count - Set BSS entry expiration scan count
3041 * @wpa_s: wpa_supplicant structure for a network interface
3042 * @expire_count: number of scans after which an unseen BSS is reclaimed
3043 * Returns: 0 if succeed or -1 if expire_count has an invalid value
3046 int wpa_supplicant_set_bss_expiration_count(struct wpa_supplicant *wpa_s,
3047 unsigned int bss_expire_count)
3049 if (bss_expire_count < 1) {
3050 wpa_msg(wpa_s, MSG_ERROR, "Invalid bss expiration count %u",
3054 wpa_msg(wpa_s, MSG_DEBUG, "Setting bss expiration scan count: %u",
3056 wpa_s->conf->bss_expiration_scan_count = bss_expire_count;
3063 * wpa_supplicant_set_scan_interval - Set scan interval
3064 * @wpa_s: wpa_supplicant structure for a network interface
3065 * @scan_interval: scan interval in seconds
3066 * Returns: 0 if succeed or -1 if scan_interval has an invalid value
3069 int wpa_supplicant_set_scan_interval(struct wpa_supplicant *wpa_s,
3072 if (scan_interval < 0) {
3073 wpa_msg(wpa_s, MSG_ERROR, "Invalid scan interval %d",
3077 wpa_msg(wpa_s, MSG_DEBUG, "Setting scan interval: %d sec",
3079 wpa_supplicant_update_scan_int(wpa_s, scan_interval);
3086 * wpa_supplicant_set_debug_params - Set global debug params
3087 * @global: wpa_global structure
3088 * @debug_level: debug level
3089 * @debug_timestamp: determines if show timestamp in debug data
3090 * @debug_show_keys: determines if show keys in debug data
3091 * Returns: 0 if succeed or -1 if debug_level has wrong value
3093 int wpa_supplicant_set_debug_params(struct wpa_global *global, int debug_level,
3094 int debug_timestamp, int debug_show_keys)
3097 int old_level, old_timestamp, old_show_keys;
3099 /* check for allowed debuglevels */
3100 if (debug_level != MSG_EXCESSIVE &&
3101 debug_level != MSG_MSGDUMP &&
3102 debug_level != MSG_DEBUG &&
3103 debug_level != MSG_INFO &&
3104 debug_level != MSG_WARNING &&
3105 debug_level != MSG_ERROR)
3108 old_level = wpa_debug_level;
3109 old_timestamp = wpa_debug_timestamp;
3110 old_show_keys = wpa_debug_show_keys;
3112 wpa_debug_level = debug_level;
3113 wpa_debug_timestamp = debug_timestamp ? 1 : 0;
3114 wpa_debug_show_keys = debug_show_keys ? 1 : 0;
3116 if (wpa_debug_level != old_level)
3117 wpas_notify_debug_level_changed(global);
3118 if (wpa_debug_timestamp != old_timestamp)
3119 wpas_notify_debug_timestamp_changed(global);
3120 if (wpa_debug_show_keys != old_show_keys)
3121 wpas_notify_debug_show_keys_changed(global);
3128 * wpa_supplicant_get_ssid - Get a pointer to the current network structure
3129 * @wpa_s: Pointer to wpa_supplicant data
3130 * Returns: A pointer to the current network structure or %NULL on failure
3132 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s)
3134 struct wpa_ssid *entry;
3135 u8 ssid[SSID_MAX_LEN];
3141 res = wpa_drv_get_ssid(wpa_s, ssid);
3143 wpa_msg(wpa_s, MSG_WARNING, "Could not read SSID from "
3149 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
3150 wpa_msg(wpa_s, MSG_WARNING, "Could not read BSSID from "
3155 wired = wpa_s->conf->ap_scan == 0 &&
3156 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_WIRED);
3158 entry = wpa_s->conf->ssid;
3160 if (!wpas_network_disabled(wpa_s, entry) &&
3161 ((ssid_len == entry->ssid_len &&
3162 os_memcmp(ssid, entry->ssid, ssid_len) == 0) || wired) &&
3163 (!entry->bssid_set ||
3164 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
3167 if (!wpas_network_disabled(wpa_s, entry) &&
3168 (entry->key_mgmt & WPA_KEY_MGMT_WPS) &&
3169 (entry->ssid == NULL || entry->ssid_len == 0) &&
3170 (!entry->bssid_set ||
3171 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0))
3173 #endif /* CONFIG_WPS */
3175 if (!wpas_network_disabled(wpa_s, entry) && entry->bssid_set &&
3176 entry->ssid_len == 0 &&
3177 os_memcmp(bssid, entry->bssid, ETH_ALEN) == 0)
3180 entry = entry->next;
3187 static int select_driver(struct wpa_supplicant *wpa_s, int i)
3189 struct wpa_global *global = wpa_s->global;
3191 if (wpa_drivers[i]->global_init && global->drv_priv[i] == NULL) {
3192 global->drv_priv[i] = wpa_drivers[i]->global_init(global);
3193 if (global->drv_priv[i] == NULL) {
3194 wpa_printf(MSG_ERROR, "Failed to initialize driver "
3195 "'%s'", wpa_drivers[i]->name);
3200 wpa_s->driver = wpa_drivers[i];
3201 wpa_s->global_drv_priv = global->drv_priv[i];
3207 static int wpa_supplicant_set_driver(struct wpa_supplicant *wpa_s,
3212 const char *pos, *driver = name;
3217 if (wpa_drivers[0] == NULL) {
3218 wpa_msg(wpa_s, MSG_ERROR, "No driver interfaces build into "
3224 /* default to first driver in the list */
3225 return select_driver(wpa_s, 0);
3229 pos = os_strchr(driver, ',');
3233 len = os_strlen(driver);
3235 for (i = 0; wpa_drivers[i]; i++) {
3236 if (os_strlen(wpa_drivers[i]->name) == len &&
3237 os_strncmp(driver, wpa_drivers[i]->name, len) ==
3239 /* First driver that succeeds wins */
3240 if (select_driver(wpa_s, i) == 0)
3248 wpa_msg(wpa_s, MSG_ERROR, "Unsupported driver '%s'", name);
3254 * wpa_supplicant_rx_eapol - Deliver a received EAPOL frame to wpa_supplicant
3255 * @ctx: Context pointer (wpa_s); this is the ctx variable registered
3256 * with struct wpa_driver_ops::init()
3257 * @src_addr: Source address of the EAPOL frame
3258 * @buf: EAPOL data starting from the EAPOL header (i.e., no Ethernet header)
3259 * @len: Length of the EAPOL data
3261 * This function is called for each received EAPOL frame. Most driver
3262 * interfaces rely on more generic OS mechanism for receiving frames through
3263 * l2_packet, but if such a mechanism is not available, the driver wrapper may
3264 * take care of received EAPOL frames and deliver them to the core supplicant
3265 * code by calling this function.
3267 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
3268 const u8 *buf, size_t len)
3270 struct wpa_supplicant *wpa_s = ctx;
3272 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR, MAC2STR(src_addr));
3273 wpa_hexdump(MSG_MSGDUMP, "RX EAPOL", buf, len);
3275 #ifdef CONFIG_PEERKEY
3276 if (wpa_s->wpa_state > WPA_ASSOCIATED && wpa_s->current_ssid &&
3277 wpa_s->current_ssid->peerkey &&
3278 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
3279 wpa_sm_rx_eapol_peerkey(wpa_s->wpa, src_addr, buf, len) == 1) {
3280 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: Processed PeerKey EAPOL-Key");
3283 #endif /* CONFIG_PEERKEY */
3285 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3286 (wpa_s->last_eapol_matches_bssid &&
3289 #endif /* CONFIG_AP */
3290 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) != 0)) {
3292 * There is possible race condition between receiving the
3293 * association event and the EAPOL frame since they are coming
3294 * through different paths from the driver. In order to avoid
3295 * issues in trying to process the EAPOL frame before receiving
3296 * association information, lets queue it for processing until
3297 * the association event is received. This may also be needed in
3298 * driver-based roaming case, so also use src_addr != BSSID as a
3299 * trigger if we have previously confirmed that the
3300 * Authenticator uses BSSID as the src_addr (which is not the
3301 * case with wired IEEE 802.1X).
3303 wpa_dbg(wpa_s, MSG_DEBUG, "Not associated - Delay processing "
3304 "of received EAPOL frame (state=%s bssid=" MACSTR ")",
3305 wpa_supplicant_state_txt(wpa_s->wpa_state),
3306 MAC2STR(wpa_s->bssid));
3307 wpabuf_free(wpa_s->pending_eapol_rx);
3308 wpa_s->pending_eapol_rx = wpabuf_alloc_copy(buf, len);
3309 if (wpa_s->pending_eapol_rx) {
3310 os_get_reltime(&wpa_s->pending_eapol_rx_time);
3311 os_memcpy(wpa_s->pending_eapol_rx_src, src_addr,
3317 wpa_s->last_eapol_matches_bssid =
3318 os_memcmp(src_addr, wpa_s->bssid, ETH_ALEN) == 0;
3321 if (wpa_s->ap_iface) {
3322 wpa_supplicant_ap_rx_eapol(wpa_s, src_addr, buf, len);
3325 #endif /* CONFIG_AP */
3327 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE) {
3328 wpa_dbg(wpa_s, MSG_DEBUG, "Ignored received EAPOL frame since "
3329 "no key management is configured");
3333 if (wpa_s->eapol_received == 0 &&
3334 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) ||
3335 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3336 wpa_s->wpa_state != WPA_COMPLETED) &&
3337 (wpa_s->current_ssid == NULL ||
3338 wpa_s->current_ssid->mode != IEEE80211_MODE_IBSS)) {
3339 /* Timeout for completing IEEE 802.1X and WPA authentication */
3342 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3343 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA ||
3344 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
3345 /* Use longer timeout for IEEE 802.1X/EAP */
3350 if (wpa_s->current_ssid && wpa_s->current_bss &&
3351 (wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
3352 eap_is_wps_pin_enrollee(&wpa_s->current_ssid->eap)) {
3354 * Use shorter timeout if going through WPS AP iteration
3355 * for PIN config method with an AP that does not
3356 * advertise Selected Registrar.
3358 struct wpabuf *wps_ie;
3360 wps_ie = wpa_bss_get_vendor_ie_multi(
3361 wpa_s->current_bss, WPS_IE_VENDOR_TYPE);
3363 !wps_is_addr_authorized(wps_ie, wpa_s->own_addr, 1))
3365 wpabuf_free(wps_ie);
3367 #endif /* CONFIG_WPS */
3369 wpa_supplicant_req_auth_timeout(wpa_s, timeout, 0);
3371 wpa_s->eapol_received++;
3373 if (wpa_s->countermeasures) {
3374 wpa_msg(wpa_s, MSG_INFO, "WPA: Countermeasures - dropped "
3379 #ifdef CONFIG_IBSS_RSN
3380 if (wpa_s->current_ssid &&
3381 wpa_s->current_ssid->mode == WPAS_MODE_IBSS) {
3382 ibss_rsn_rx_eapol(wpa_s->ibss_rsn, src_addr, buf, len);
3385 #endif /* CONFIG_IBSS_RSN */
3387 /* Source address of the incoming EAPOL frame could be compared to the
3388 * current BSSID. However, it is possible that a centralized
3389 * Authenticator could be using another MAC address than the BSSID of
3390 * an AP, so just allow any address to be used for now. The replies are
3391 * still sent to the current BSSID (if available), though. */
3393 os_memcpy(wpa_s->last_eapol_src, src_addr, ETH_ALEN);
3394 if (!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) &&
3395 eapol_sm_rx_eapol(wpa_s->eapol, src_addr, buf, len) > 0)
3397 wpa_drv_poll(wpa_s);
3398 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
3399 wpa_sm_rx_eapol(wpa_s->wpa, src_addr, buf, len);
3400 else if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3402 * Set portValid = TRUE here since we are going to skip 4-way
3403 * handshake processing which would normally set portValid. We
3404 * need this to allow the EAPOL state machines to be completed
3405 * without going through EAPOL-Key handshake.
3407 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3412 int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s)
3414 if ((!wpa_s->p2p_mgmt ||
3415 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
3416 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) {
3417 l2_packet_deinit(wpa_s->l2);
3418 wpa_s->l2 = l2_packet_init(wpa_s->ifname,
3419 wpa_drv_get_mac_addr(wpa_s),
3421 wpa_supplicant_rx_eapol, wpa_s, 0);
3422 if (wpa_s->l2 == NULL)
3425 const u8 *addr = wpa_drv_get_mac_addr(wpa_s);
3427 os_memcpy(wpa_s->own_addr, addr, ETH_ALEN);
3430 if (wpa_s->l2 && l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) {
3431 wpa_msg(wpa_s, MSG_ERROR, "Failed to get own L2 address");
3435 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3441 static void wpa_supplicant_rx_eapol_bridge(void *ctx, const u8 *src_addr,
3442 const u8 *buf, size_t len)
3444 struct wpa_supplicant *wpa_s = ctx;
3445 const struct l2_ethhdr *eth;
3447 if (len < sizeof(*eth))
3449 eth = (const struct l2_ethhdr *) buf;
3451 if (os_memcmp(eth->h_dest, wpa_s->own_addr, ETH_ALEN) != 0 &&
3452 !(eth->h_dest[0] & 0x01)) {
3453 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3454 " (bridge - not for this interface - ignore)",
3455 MAC2STR(src_addr), MAC2STR(eth->h_dest));
3459 wpa_dbg(wpa_s, MSG_DEBUG, "RX EAPOL from " MACSTR " to " MACSTR
3460 " (bridge)", MAC2STR(src_addr), MAC2STR(eth->h_dest));
3461 wpa_supplicant_rx_eapol(wpa_s, src_addr, buf + sizeof(*eth),
3462 len - sizeof(*eth));
3467 * wpa_supplicant_driver_init - Initialize driver interface parameters
3468 * @wpa_s: Pointer to wpa_supplicant data
3469 * Returns: 0 on success, -1 on failure
3471 * This function is called to initialize driver interface parameters.
3472 * wpa_drv_init() must have been called before this function to initialize the
3475 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s)
3477 static int interface_count = 0;
3479 if (wpa_supplicant_update_mac_addr(wpa_s) < 0)
3482 wpa_dbg(wpa_s, MSG_DEBUG, "Own MAC address: " MACSTR,
3483 MAC2STR(wpa_s->own_addr));
3484 os_memcpy(wpa_s->perm_addr, wpa_s->own_addr, ETH_ALEN);
3485 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
3487 if (wpa_s->bridge_ifname[0]) {
3488 wpa_dbg(wpa_s, MSG_DEBUG, "Receiving packets from bridge "
3489 "interface '%s'", wpa_s->bridge_ifname);
3490 wpa_s->l2_br = l2_packet_init_bridge(
3491 wpa_s->bridge_ifname, wpa_s->ifname, wpa_s->own_addr,
3492 ETH_P_EAPOL, wpa_supplicant_rx_eapol_bridge, wpa_s, 1);
3493 if (wpa_s->l2_br == NULL) {
3494 wpa_msg(wpa_s, MSG_ERROR, "Failed to open l2_packet "
3495 "connection for the bridge interface '%s'",
3496 wpa_s->bridge_ifname);
3501 if (wpa_s->conf->ap_scan == 2 &&
3502 os_strcmp(wpa_s->driver->name, "nl80211") == 0) {
3503 wpa_printf(MSG_INFO,
3504 "Note: nl80211 driver interface is not designed to be used with ap_scan=2; this can result in connection failures");
3507 wpa_clear_keys(wpa_s, NULL);
3509 /* Make sure that TKIP countermeasures are not left enabled (could
3510 * happen if wpa_supplicant is killed during countermeasures. */
3511 wpa_drv_set_countermeasures(wpa_s, 0);
3513 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: flushing PMKID list in the driver");
3514 wpa_drv_flush_pmkid(wpa_s);
3516 wpa_s->prev_scan_ssid = WILDCARD_SSID_SCAN;
3517 wpa_s->prev_scan_wildcard = 0;
3519 if (wpa_supplicant_enabled_networks(wpa_s)) {
3520 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3521 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3522 interface_count = 0;
3525 if (!wpa_s->p2p_mgmt &&
3526 wpa_supplicant_delayed_sched_scan(wpa_s,
3527 interface_count % 3,
3529 wpa_supplicant_req_scan(wpa_s, interface_count % 3,
3531 #endif /* ANDROID */
3534 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
3540 static int wpa_supplicant_daemon(const char *pid_file)
3542 wpa_printf(MSG_DEBUG, "Daemonize..");
3543 return os_daemonize(pid_file);
3547 static struct wpa_supplicant *
3548 wpa_supplicant_alloc(struct wpa_supplicant *parent)
3550 struct wpa_supplicant *wpa_s;
3552 wpa_s = os_zalloc(sizeof(*wpa_s));
3555 wpa_s->scan_req = INITIAL_SCAN_REQ;
3556 wpa_s->scan_interval = 5;
3557 wpa_s->new_connection = 1;
3558 wpa_s->parent = parent ? parent : wpa_s;
3559 wpa_s->p2pdev = wpa_s->parent;
3560 wpa_s->sched_scanning = 0;
3562 dl_list_init(&wpa_s->bss_tmp_disallowed);
3568 #ifdef CONFIG_HT_OVERRIDES
3570 static int wpa_set_htcap_mcs(struct wpa_supplicant *wpa_s,
3571 struct ieee80211_ht_capabilities *htcaps,
3572 struct ieee80211_ht_capabilities *htcaps_mask,
3575 /* parse ht_mcs into hex array */
3577 const char *tmp = ht_mcs;
3580 /* If ht_mcs is null, do not set anything */
3584 /* This is what we are setting in the kernel */
3585 os_memset(&htcaps->supported_mcs_set, 0, IEEE80211_HT_MCS_MASK_LEN);
3587 wpa_msg(wpa_s, MSG_DEBUG, "set_htcap, ht_mcs -:%s:-", ht_mcs);
3589 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3591 long v = strtol(tmp, &end, 16);
3593 wpa_msg(wpa_s, MSG_DEBUG,
3594 "htcap value[%i]: %ld end: %p tmp: %p",
3599 htcaps->supported_mcs_set[i] = v;
3602 wpa_msg(wpa_s, MSG_ERROR,
3603 "Failed to parse ht-mcs: %s, error: %s\n",
3604 ht_mcs, strerror(errno));
3610 * If we were able to parse any values, then set mask for the MCS set.
3613 os_memset(&htcaps_mask->supported_mcs_set, 0xff,
3614 IEEE80211_HT_MCS_MASK_LEN - 1);
3615 /* skip the 3 reserved bits */
3616 htcaps_mask->supported_mcs_set[IEEE80211_HT_MCS_MASK_LEN - 1] =
3624 static int wpa_disable_max_amsdu(struct wpa_supplicant *wpa_s,
3625 struct ieee80211_ht_capabilities *htcaps,
3626 struct ieee80211_ht_capabilities *htcaps_mask,
3631 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_max_amsdu: %d", disabled);
3636 msk = host_to_le16(HT_CAP_INFO_MAX_AMSDU_SIZE);
3637 htcaps_mask->ht_capabilities_info |= msk;
3639 htcaps->ht_capabilities_info &= msk;
3641 htcaps->ht_capabilities_info |= msk;
3647 static int wpa_set_ampdu_factor(struct wpa_supplicant *wpa_s,
3648 struct ieee80211_ht_capabilities *htcaps,
3649 struct ieee80211_ht_capabilities *htcaps_mask,
3652 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_factor: %d", factor);
3657 if (factor < 0 || factor > 3) {
3658 wpa_msg(wpa_s, MSG_ERROR, "ampdu_factor: %d out of range. "
3659 "Must be 0-3 or -1", factor);
3663 htcaps_mask->a_mpdu_params |= 0x3; /* 2 bits for factor */
3664 htcaps->a_mpdu_params &= ~0x3;
3665 htcaps->a_mpdu_params |= factor & 0x3;
3671 static int wpa_set_ampdu_density(struct wpa_supplicant *wpa_s,
3672 struct ieee80211_ht_capabilities *htcaps,
3673 struct ieee80211_ht_capabilities *htcaps_mask,
3676 wpa_msg(wpa_s, MSG_DEBUG, "set_ampdu_density: %d", density);
3681 if (density < 0 || density > 7) {
3682 wpa_msg(wpa_s, MSG_ERROR,
3683 "ampdu_density: %d out of range. Must be 0-7 or -1.",
3688 htcaps_mask->a_mpdu_params |= 0x1C;
3689 htcaps->a_mpdu_params &= ~(0x1C);
3690 htcaps->a_mpdu_params |= (density << 2) & 0x1C;
3696 static int wpa_set_disable_ht40(struct wpa_supplicant *wpa_s,
3697 struct ieee80211_ht_capabilities *htcaps,
3698 struct ieee80211_ht_capabilities *htcaps_mask,
3701 /* Masking these out disables HT40 */
3702 le16 msk = host_to_le16(HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET |
3703 HT_CAP_INFO_SHORT_GI40MHZ);
3705 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ht40: %d", disabled);
3708 htcaps->ht_capabilities_info &= ~msk;
3710 htcaps->ht_capabilities_info |= msk;
3712 htcaps_mask->ht_capabilities_info |= msk;
3718 static int wpa_set_disable_sgi(struct wpa_supplicant *wpa_s,
3719 struct ieee80211_ht_capabilities *htcaps,
3720 struct ieee80211_ht_capabilities *htcaps_mask,
3723 /* Masking these out disables SGI */
3724 le16 msk = host_to_le16(HT_CAP_INFO_SHORT_GI20MHZ |
3725 HT_CAP_INFO_SHORT_GI40MHZ);
3727 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_sgi: %d", disabled);
3730 htcaps->ht_capabilities_info &= ~msk;
3732 htcaps->ht_capabilities_info |= msk;
3734 htcaps_mask->ht_capabilities_info |= msk;
3740 static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s,
3741 struct ieee80211_ht_capabilities *htcaps,
3742 struct ieee80211_ht_capabilities *htcaps_mask,
3745 /* Masking these out disables LDPC */
3746 le16 msk = host_to_le16(HT_CAP_INFO_LDPC_CODING_CAP);
3748 wpa_msg(wpa_s, MSG_DEBUG, "set_disable_ldpc: %d", disabled);
3751 htcaps->ht_capabilities_info &= ~msk;
3753 htcaps->ht_capabilities_info |= msk;
3755 htcaps_mask->ht_capabilities_info |= msk;
3761 void wpa_supplicant_apply_ht_overrides(
3762 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3763 struct wpa_driver_associate_params *params)
3765 struct ieee80211_ht_capabilities *htcaps;
3766 struct ieee80211_ht_capabilities *htcaps_mask;
3771 params->disable_ht = ssid->disable_ht;
3772 if (!params->htcaps || !params->htcaps_mask)
3775 htcaps = (struct ieee80211_ht_capabilities *) params->htcaps;
3776 htcaps_mask = (struct ieee80211_ht_capabilities *) params->htcaps_mask;
3777 wpa_set_htcap_mcs(wpa_s, htcaps, htcaps_mask, ssid->ht_mcs);
3778 wpa_disable_max_amsdu(wpa_s, htcaps, htcaps_mask,
3779 ssid->disable_max_amsdu);
3780 wpa_set_ampdu_factor(wpa_s, htcaps, htcaps_mask, ssid->ampdu_factor);
3781 wpa_set_ampdu_density(wpa_s, htcaps, htcaps_mask, ssid->ampdu_density);
3782 wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40);
3783 wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi);
3784 wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc);
3786 if (ssid->ht40_intolerant) {
3787 le16 bit = host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT);
3788 htcaps->ht_capabilities_info |= bit;
3789 htcaps_mask->ht_capabilities_info |= bit;
3793 #endif /* CONFIG_HT_OVERRIDES */
3796 #ifdef CONFIG_VHT_OVERRIDES
3797 void wpa_supplicant_apply_vht_overrides(
3798 struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
3799 struct wpa_driver_associate_params *params)
3801 struct ieee80211_vht_capabilities *vhtcaps;
3802 struct ieee80211_vht_capabilities *vhtcaps_mask;
3807 params->disable_vht = ssid->disable_vht;
3809 vhtcaps = (void *) params->vhtcaps;
3810 vhtcaps_mask = (void *) params->vhtcaps_mask;
3812 if (!vhtcaps || !vhtcaps_mask)
3815 vhtcaps->vht_capabilities_info = host_to_le32(ssid->vht_capa);
3816 vhtcaps_mask->vht_capabilities_info = host_to_le32(ssid->vht_capa_mask);
3818 #ifdef CONFIG_HT_OVERRIDES
3819 /* if max ampdu is <= 3, we have to make the HT cap the same */
3820 if (ssid->vht_capa_mask & VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) {
3823 max_ampdu = (ssid->vht_capa &
3824 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX) >>
3825 VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MAX_SHIFT;
3827 max_ampdu = max_ampdu < 3 ? max_ampdu : 3;
3828 wpa_set_ampdu_factor(wpa_s,
3829 (void *) params->htcaps,
3830 (void *) params->htcaps_mask,
3833 #endif /* CONFIG_HT_OVERRIDES */
3835 #define OVERRIDE_MCS(i) \
3836 if (ssid->vht_tx_mcs_nss_ ##i >= 0) { \
3837 vhtcaps_mask->vht_supported_mcs_set.tx_map |= \
3838 host_to_le16(3 << 2 * (i - 1)); \
3839 vhtcaps->vht_supported_mcs_set.tx_map |= \
3840 host_to_le16(ssid->vht_tx_mcs_nss_ ##i << \
3843 if (ssid->vht_rx_mcs_nss_ ##i >= 0) { \
3844 vhtcaps_mask->vht_supported_mcs_set.rx_map |= \
3845 host_to_le16(3 << 2 * (i - 1)); \
3846 vhtcaps->vht_supported_mcs_set.rx_map |= \
3847 host_to_le16(ssid->vht_rx_mcs_nss_ ##i << \
3860 #endif /* CONFIG_VHT_OVERRIDES */
3863 static int pcsc_reader_init(struct wpa_supplicant *wpa_s)
3868 if (!wpa_s->conf->pcsc_reader)
3871 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
3875 if (wpa_s->conf->pcsc_pin &&
3876 scard_set_pin(wpa_s->scard, wpa_s->conf->pcsc_pin) < 0) {
3877 scard_deinit(wpa_s->scard);
3878 wpa_s->scard = NULL;
3879 wpa_msg(wpa_s, MSG_ERROR, "PC/SC PIN validation failed");
3883 len = sizeof(wpa_s->imsi) - 1;
3884 if (scard_get_imsi(wpa_s->scard, wpa_s->imsi, &len)) {
3885 scard_deinit(wpa_s->scard);
3886 wpa_s->scard = NULL;
3887 wpa_msg(wpa_s, MSG_ERROR, "Could not read IMSI");
3890 wpa_s->imsi[len] = '\0';
3892 wpa_s->mnc_len = scard_get_mnc_len(wpa_s->scard);
3894 wpa_printf(MSG_DEBUG, "SCARD: IMSI %s (MNC length %d)",
3895 wpa_s->imsi, wpa_s->mnc_len);
3897 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
3898 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
3899 #endif /* PCSC_FUNCS */
3905 int wpas_init_ext_pw(struct wpa_supplicant *wpa_s)
3909 ext_password_deinit(wpa_s->ext_pw);
3910 wpa_s->ext_pw = NULL;
3911 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, NULL);
3913 if (!wpa_s->conf->ext_password_backend)
3916 val = os_strdup(wpa_s->conf->ext_password_backend);
3919 pos = os_strchr(val, ':');
3923 wpa_printf(MSG_DEBUG, "EXT PW: Initialize backend '%s'", val);
3925 wpa_s->ext_pw = ext_password_init(val, pos);
3927 if (wpa_s->ext_pw == NULL) {
3928 wpa_printf(MSG_DEBUG, "EXT PW: Failed to initialize backend");
3931 eapol_sm_set_ext_pw_ctx(wpa_s->eapol, wpa_s->ext_pw);
3939 static const u8 * wpas_fst_get_bssid_cb(void *ctx)
3941 struct wpa_supplicant *wpa_s = ctx;
3943 return (is_zero_ether_addr(wpa_s->bssid) ||
3944 wpa_s->wpa_state != WPA_COMPLETED) ? NULL : wpa_s->bssid;
3948 static void wpas_fst_get_channel_info_cb(void *ctx,
3949 enum hostapd_hw_mode *hw_mode,
3952 struct wpa_supplicant *wpa_s = ctx;
3954 if (wpa_s->current_bss) {
3955 *hw_mode = ieee80211_freq_to_chan(wpa_s->current_bss->freq,
3957 } else if (wpa_s->hw.num_modes) {
3958 *hw_mode = wpa_s->hw.modes[0].mode;
3966 static int wpas_fst_get_hw_modes(void *ctx, struct hostapd_hw_modes **modes)
3968 struct wpa_supplicant *wpa_s = ctx;
3970 *modes = wpa_s->hw.modes;
3971 return wpa_s->hw.num_modes;
3975 static void wpas_fst_set_ies_cb(void *ctx, const struct wpabuf *fst_ies)
3977 struct wpa_supplicant *wpa_s = ctx;
3979 wpa_hexdump_buf(MSG_DEBUG, "FST: Set IEs", fst_ies);
3980 wpa_s->fst_ies = fst_ies;
3984 static int wpas_fst_send_action_cb(void *ctx, const u8 *da, struct wpabuf *data)
3986 struct wpa_supplicant *wpa_s = ctx;
3988 WPA_ASSERT(os_memcmp(wpa_s->bssid, da, ETH_ALEN) == 0);
3989 return wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
3990 wpa_s->own_addr, wpa_s->bssid,
3991 wpabuf_head(data), wpabuf_len(data),
3996 static const struct wpabuf * wpas_fst_get_mb_ie_cb(void *ctx, const u8 *addr)
3998 struct wpa_supplicant *wpa_s = ctx;
4000 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
4001 return wpa_s->received_mb_ies;
4005 static void wpas_fst_update_mb_ie_cb(void *ctx, const u8 *addr,
4006 const u8 *buf, size_t size)
4008 struct wpa_supplicant *wpa_s = ctx;
4009 struct mb_ies_info info;
4011 WPA_ASSERT(os_memcmp(wpa_s->bssid, addr, ETH_ALEN) == 0);
4013 if (!mb_ies_info_by_ies(&info, buf, size)) {
4014 wpabuf_free(wpa_s->received_mb_ies);
4015 wpa_s->received_mb_ies = mb_ies_by_info(&info);
4020 static const u8 * wpas_fst_get_peer_first(void *ctx,
4021 struct fst_get_peer_ctx **get_ctx,
4024 struct wpa_supplicant *wpa_s = ctx;
4027 if (!is_zero_ether_addr(wpa_s->bssid))
4028 return (wpa_s->received_mb_ies || !mb_only) ?
4029 wpa_s->bssid : NULL;
4034 static const u8 * wpas_fst_get_peer_next(void *ctx,
4035 struct fst_get_peer_ctx **get_ctx,
4041 void fst_wpa_supplicant_fill_iface_obj(struct wpa_supplicant *wpa_s,
4042 struct fst_wpa_obj *iface_obj)
4044 iface_obj->ctx = wpa_s;
4045 iface_obj->get_bssid = wpas_fst_get_bssid_cb;
4046 iface_obj->get_channel_info = wpas_fst_get_channel_info_cb;
4047 iface_obj->get_hw_modes = wpas_fst_get_hw_modes;
4048 iface_obj->set_ies = wpas_fst_set_ies_cb;
4049 iface_obj->send_action = wpas_fst_send_action_cb;
4050 iface_obj->get_mb_ie = wpas_fst_get_mb_ie_cb;
4051 iface_obj->update_mb_ie = wpas_fst_update_mb_ie_cb;
4052 iface_obj->get_peer_first = wpas_fst_get_peer_first;
4053 iface_obj->get_peer_next = wpas_fst_get_peer_next;
4055 #endif /* CONFIG_FST */
4057 static int wpas_set_wowlan_triggers(struct wpa_supplicant *wpa_s,
4058 const struct wpa_driver_capa *capa)
4060 struct wowlan_triggers *triggers;
4063 if (!wpa_s->conf->wowlan_triggers)
4066 triggers = wpa_get_wowlan_triggers(wpa_s->conf->wowlan_triggers, capa);
4068 ret = wpa_drv_wowlan(wpa_s, triggers);
4075 enum wpa_radio_work_band wpas_freq_to_band(int freq)
4078 return BAND_2_4_GHZ;
4085 unsigned int wpas_get_bands(struct wpa_supplicant *wpa_s, const int *freqs)
4088 unsigned int band = 0;
4091 /* freqs are specified for the radio work */
4092 for (i = 0; freqs[i]; i++)
4093 band |= wpas_freq_to_band(freqs[i]);
4096 * freqs are not specified, implies all
4097 * the supported freqs by HW
4099 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4100 if (wpa_s->hw.modes[i].num_channels != 0) {
4101 if (wpa_s->hw.modes[i].mode ==
4102 HOSTAPD_MODE_IEEE80211B ||
4103 wpa_s->hw.modes[i].mode ==
4104 HOSTAPD_MODE_IEEE80211G)
4105 band |= BAND_2_4_GHZ;
4106 else if (wpa_s->hw.modes[i].mode ==
4107 HOSTAPD_MODE_IEEE80211A)
4109 else if (wpa_s->hw.modes[i].mode ==
4110 HOSTAPD_MODE_IEEE80211AD)
4111 band |= BAND_60_GHZ;
4112 else if (wpa_s->hw.modes[i].mode ==
4113 HOSTAPD_MODE_IEEE80211ANY)
4114 band = BAND_2_4_GHZ | BAND_5_GHZ |
4124 static struct wpa_radio * radio_add_interface(struct wpa_supplicant *wpa_s,
4127 struct wpa_supplicant *iface = wpa_s->global->ifaces;
4128 struct wpa_radio *radio;
4130 while (rn && iface) {
4131 radio = iface->radio;
4132 if (radio && os_strcmp(rn, radio->name) == 0) {
4133 wpa_printf(MSG_DEBUG, "Add interface %s to existing radio %s",
4135 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
4139 iface = iface->next;
4142 wpa_printf(MSG_DEBUG, "Add interface %s to a new radio %s",
4143 wpa_s->ifname, rn ? rn : "N/A");
4144 radio = os_zalloc(sizeof(*radio));
4149 os_strlcpy(radio->name, rn, sizeof(radio->name));
4150 dl_list_init(&radio->ifaces);
4151 dl_list_init(&radio->work);
4152 dl_list_add(&radio->ifaces, &wpa_s->radio_list);
4158 static void radio_work_free(struct wpa_radio_work *work)
4160 if (work->wpa_s->scan_work == work) {
4161 /* This should not really happen. */
4162 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as scan_work",
4163 work->type, work, work->started);
4164 work->wpa_s->scan_work = NULL;
4168 if (work->wpa_s->p2p_scan_work == work) {
4169 /* This should not really happen. */
4170 wpa_dbg(work->wpa_s, MSG_INFO, "Freeing radio work '%s'@%p (started=%d) that is marked as p2p_scan_work",
4171 work->type, work, work->started);
4172 work->wpa_s->p2p_scan_work = NULL;
4174 #endif /* CONFIG_P2P */
4176 if (work->started) {
4177 work->wpa_s->radio->num_active_works--;
4178 wpa_dbg(work->wpa_s, MSG_DEBUG,
4179 "radio_work_free('%s'@%p: num_active_works --> %u",
4181 work->wpa_s->radio->num_active_works);
4184 dl_list_del(&work->list);
4189 static struct wpa_radio_work * radio_work_get_next_work(struct wpa_radio *radio)
4191 struct wpa_radio_work *active_work = NULL;
4192 struct wpa_radio_work *tmp;
4194 /* Get the active work to know the type and band. */
4195 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) {
4203 /* No active work, start one */
4204 radio->num_active_works = 0;
4205 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work,
4207 if (os_strcmp(tmp->type, "scan") == 0 &&
4208 radio->external_scan_running &&
4209 (((struct wpa_driver_scan_params *)
4210 tmp->ctx)->only_new_results ||
4211 tmp->wpa_s->clear_driver_scan_cache))
4218 if (os_strcmp(active_work->type, "sme-connect") == 0 ||
4219 os_strcmp(active_work->type, "connect") == 0) {
4221 * If the active work is either connect or sme-connect,
4222 * do not parallelize them with other radio works.
4224 wpa_dbg(active_work->wpa_s, MSG_DEBUG,
4225 "Do not parallelize radio work with %s",
4230 dl_list_for_each(tmp, &radio->work, struct wpa_radio_work, list) {
4235 * If connect or sme-connect are enqueued, parallelize only
4236 * those operations ahead of them in the queue.
4238 if (os_strcmp(tmp->type, "connect") == 0 ||
4239 os_strcmp(tmp->type, "sme-connect") == 0)
4243 * Check that the radio works are distinct and
4244 * on different bands.
4246 if (os_strcmp(active_work->type, tmp->type) != 0 &&
4247 (active_work->bands != tmp->bands)) {
4249 * If a scan has to be scheduled through nl80211 scan
4250 * interface and if an external scan is already running,
4251 * do not schedule the scan since it is likely to get
4252 * rejected by kernel.
4254 if (os_strcmp(tmp->type, "scan") == 0 &&
4255 radio->external_scan_running &&
4256 (((struct wpa_driver_scan_params *)
4257 tmp->ctx)->only_new_results ||
4258 tmp->wpa_s->clear_driver_scan_cache))
4261 wpa_dbg(active_work->wpa_s, MSG_DEBUG,
4262 "active_work:%s new_work:%s",
4263 active_work->type, tmp->type);
4268 /* Did not find a radio work to schedule in parallel. */
4273 static void radio_start_next_work(void *eloop_ctx, void *timeout_ctx)
4275 struct wpa_radio *radio = eloop_ctx;
4276 struct wpa_radio_work *work;
4277 struct os_reltime now, diff;
4278 struct wpa_supplicant *wpa_s;
4280 work = dl_list_first(&radio->work, struct wpa_radio_work, list);
4282 radio->num_active_works = 0;
4286 wpa_s = dl_list_first(&radio->ifaces, struct wpa_supplicant,
4290 wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)) {
4292 return; /* already started and still in progress */
4294 if (wpa_s && wpa_s->radio->external_scan_running) {
4295 wpa_printf(MSG_DEBUG, "Delay radio work start until externally triggered scan completes");
4300 if (radio->num_active_works < MAX_ACTIVE_WORKS) {
4301 /* get the work to schedule next */
4302 work = radio_work_get_next_work(radio);
4308 wpa_s = work->wpa_s;
4309 os_get_reltime(&now);
4310 os_reltime_sub(&now, &work->time, &diff);
4311 wpa_dbg(wpa_s, MSG_DEBUG,
4312 "Starting radio work '%s'@%p after %ld.%06ld second wait",
4313 work->type, work, diff.sec, diff.usec);
4316 radio->num_active_works++;
4320 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS) &&
4321 radio->num_active_works < MAX_ACTIVE_WORKS)
4322 radio_work_check_next(wpa_s);
4327 * This function removes both started and pending radio works running on
4328 * the provided interface's radio.
4329 * Prior to the removal of the radio work, its callback (cb) is called with
4330 * deinit set to be 1. Each work's callback is responsible for clearing its
4331 * internal data and restoring to a correct state.
4332 * @wpa_s: wpa_supplicant data
4333 * @type: type of works to be removed
4334 * @remove_all: 1 to remove all the works on this radio, 0 to remove only
4335 * this interface's works.
4337 void radio_remove_works(struct wpa_supplicant *wpa_s,
4338 const char *type, int remove_all)
4340 struct wpa_radio_work *work, *tmp;
4341 struct wpa_radio *radio = wpa_s->radio;
4343 dl_list_for_each_safe(work, tmp, &radio->work, struct wpa_radio_work,
4345 if (type && os_strcmp(type, work->type) != 0)
4348 /* skip other ifaces' works */
4349 if (!remove_all && work->wpa_s != wpa_s)
4352 wpa_dbg(wpa_s, MSG_DEBUG, "Remove radio work '%s'@%p%s",
4353 work->type, work, work->started ? " (started)" : "");
4355 radio_work_free(work);
4358 /* in case we removed the started work */
4359 radio_work_check_next(wpa_s);
4363 static void radio_remove_interface(struct wpa_supplicant *wpa_s)
4365 struct wpa_radio *radio = wpa_s->radio;
4370 wpa_printf(MSG_DEBUG, "Remove interface %s from radio %s",
4371 wpa_s->ifname, radio->name);
4372 dl_list_del(&wpa_s->radio_list);
4373 radio_remove_works(wpa_s, NULL, 0);
4374 wpa_s->radio = NULL;
4375 if (!dl_list_empty(&radio->ifaces))
4376 return; /* Interfaces remain for this radio */
4378 wpa_printf(MSG_DEBUG, "Remove radio %s", radio->name);
4379 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4384 void radio_work_check_next(struct wpa_supplicant *wpa_s)
4386 struct wpa_radio *radio = wpa_s->radio;
4388 if (dl_list_empty(&radio->work))
4390 if (wpa_s->ext_work_in_progress) {
4391 wpa_printf(MSG_DEBUG,
4392 "External radio work in progress - delay start of pending item");
4395 eloop_cancel_timeout(radio_start_next_work, radio, NULL);
4396 eloop_register_timeout(0, 0, radio_start_next_work, radio, NULL);
4401 * radio_add_work - Add a radio work item
4402 * @wpa_s: Pointer to wpa_supplicant data
4403 * @freq: Frequency of the offchannel operation in MHz or 0
4404 * @type: Unique identifier for each type of work
4405 * @next: Force as the next work to be executed
4406 * @cb: Callback function for indicating when radio is available
4407 * @ctx: Context pointer for the work (work->ctx in cb())
4408 * Returns: 0 on success, -1 on failure
4410 * This function is used to request time for an operation that requires
4411 * exclusive radio control. Once the radio is available, the registered callback
4412 * function will be called. radio_work_done() must be called once the exclusive
4413 * radio operation has been completed, so that the radio is freed for other
4414 * operations. The special case of deinit=1 is used to free the context data
4415 * during interface removal. That does not allow the callback function to start
4416 * the radio operation, i.e., it must free any resources allocated for the radio
4419 * The @freq parameter can be used to indicate a single channel on which the
4420 * offchannel operation will occur. This may allow multiple radio work
4421 * operations to be performed in parallel if they apply for the same channel.
4422 * Setting this to 0 indicates that the work item may use multiple channels or
4423 * requires exclusive control of the radio.
4425 int radio_add_work(struct wpa_supplicant *wpa_s, unsigned int freq,
4426 const char *type, int next,
4427 void (*cb)(struct wpa_radio_work *work, int deinit),
4430 struct wpa_radio *radio = wpa_s->radio;
4431 struct wpa_radio_work *work;
4434 work = os_zalloc(sizeof(*work));
4437 wpa_dbg(wpa_s, MSG_DEBUG, "Add radio work '%s'@%p", type, work);
4438 os_get_reltime(&work->time);
4441 work->wpa_s = wpa_s;
4446 work->bands = wpas_freq_to_band(freq);
4447 else if (os_strcmp(type, "scan") == 0 ||
4448 os_strcmp(type, "p2p-scan") == 0)
4449 work->bands = wpas_get_bands(wpa_s,
4450 ((struct wpa_driver_scan_params *)
4453 work->bands = wpas_get_bands(wpa_s, NULL);
4455 was_empty = dl_list_empty(&wpa_s->radio->work);
4457 dl_list_add(&wpa_s->radio->work, &work->list);
4459 dl_list_add_tail(&wpa_s->radio->work, &work->list);
4461 wpa_dbg(wpa_s, MSG_DEBUG, "First radio work item in the queue - schedule start immediately");
4462 radio_work_check_next(wpa_s);
4463 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS)
4464 && radio->num_active_works < MAX_ACTIVE_WORKS) {
4465 wpa_dbg(wpa_s, MSG_DEBUG,
4466 "Try to schedule a radio work (num_active_works=%u)",
4467 radio->num_active_works);
4468 radio_work_check_next(wpa_s);
4476 * radio_work_done - Indicate that a radio work item has been completed
4477 * @work: Completed work
4479 * This function is called once the callback function registered with
4480 * radio_add_work() has completed its work.
4482 void radio_work_done(struct wpa_radio_work *work)
4484 struct wpa_supplicant *wpa_s = work->wpa_s;
4485 struct os_reltime now, diff;
4486 unsigned int started = work->started;
4488 os_get_reltime(&now);
4489 os_reltime_sub(&now, &work->time, &diff);
4490 wpa_dbg(wpa_s, MSG_DEBUG, "Radio work '%s'@%p %s in %ld.%06ld seconds",
4491 work->type, work, started ? "done" : "canceled",
4492 diff.sec, diff.usec);
4493 radio_work_free(work);
4495 radio_work_check_next(wpa_s);
4499 struct wpa_radio_work *
4500 radio_work_pending(struct wpa_supplicant *wpa_s, const char *type)
4502 struct wpa_radio_work *work;
4503 struct wpa_radio *radio = wpa_s->radio;
4505 dl_list_for_each(work, &radio->work, struct wpa_radio_work, list) {
4506 if (work->wpa_s == wpa_s && os_strcmp(work->type, type) == 0)
4514 static int wpas_init_driver(struct wpa_supplicant *wpa_s,
4515 struct wpa_interface *iface)
4517 const char *ifname, *driver, *rn;
4519 driver = iface->driver;
4521 if (wpa_supplicant_set_driver(wpa_s, driver) < 0)
4524 wpa_s->drv_priv = wpa_drv_init(wpa_s, wpa_s->ifname);
4525 if (wpa_s->drv_priv == NULL) {
4527 pos = driver ? os_strchr(driver, ',') : NULL;
4529 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to initialize "
4530 "driver interface - try next driver wrapper");
4534 wpa_msg(wpa_s, MSG_ERROR, "Failed to initialize driver "
4538 if (wpa_drv_set_param(wpa_s, wpa_s->conf->driver_param) < 0) {
4539 wpa_msg(wpa_s, MSG_ERROR, "Driver interface rejected "
4540 "driver_param '%s'", wpa_s->conf->driver_param);
4544 ifname = wpa_drv_get_ifname(wpa_s);
4545 if (ifname && os_strcmp(ifname, wpa_s->ifname) != 0) {
4546 wpa_dbg(wpa_s, MSG_DEBUG, "Driver interface replaced "
4547 "interface name with '%s'", ifname);
4548 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
4551 rn = wpa_driver_get_radio_name(wpa_s);
4552 if (rn && rn[0] == '\0')
4555 wpa_s->radio = radio_add_interface(wpa_s, rn);
4556 if (wpa_s->radio == NULL)
4563 static int wpa_supplicant_init_iface(struct wpa_supplicant *wpa_s,
4564 struct wpa_interface *iface)
4566 struct wpa_driver_capa capa;
4569 wpa_printf(MSG_DEBUG, "Initializing interface '%s' conf '%s' driver "
4570 "'%s' ctrl_interface '%s' bridge '%s'", iface->ifname,
4571 iface->confname ? iface->confname : "N/A",
4572 iface->driver ? iface->driver : "default",
4573 iface->ctrl_interface ? iface->ctrl_interface : "N/A",
4574 iface->bridge_ifname ? iface->bridge_ifname : "N/A");
4576 if (iface->confname) {
4577 #ifdef CONFIG_BACKEND_FILE
4578 wpa_s->confname = os_rel2abs_path(iface->confname);
4579 if (wpa_s->confname == NULL) {
4580 wpa_printf(MSG_ERROR, "Failed to get absolute path "
4581 "for configuration file '%s'.",
4585 wpa_printf(MSG_DEBUG, "Configuration file '%s' -> '%s'",
4586 iface->confname, wpa_s->confname);
4587 #else /* CONFIG_BACKEND_FILE */
4588 wpa_s->confname = os_strdup(iface->confname);
4589 #endif /* CONFIG_BACKEND_FILE */
4590 wpa_s->conf = wpa_config_read(wpa_s->confname, NULL);
4591 if (wpa_s->conf == NULL) {
4592 wpa_printf(MSG_ERROR, "Failed to read or parse "
4593 "configuration '%s'.", wpa_s->confname);
4596 wpa_s->confanother = os_rel2abs_path(iface->confanother);
4597 wpa_config_read(wpa_s->confanother, wpa_s->conf);
4600 * Override ctrl_interface and driver_param if set on command
4603 if (iface->ctrl_interface) {
4604 os_free(wpa_s->conf->ctrl_interface);
4605 wpa_s->conf->ctrl_interface =
4606 os_strdup(iface->ctrl_interface);
4609 if (iface->driver_param) {
4610 os_free(wpa_s->conf->driver_param);
4611 wpa_s->conf->driver_param =
4612 os_strdup(iface->driver_param);
4615 if (iface->p2p_mgmt && !iface->ctrl_interface) {
4616 os_free(wpa_s->conf->ctrl_interface);
4617 wpa_s->conf->ctrl_interface = NULL;
4620 wpa_s->conf = wpa_config_alloc_empty(iface->ctrl_interface,
4621 iface->driver_param);
4623 if (wpa_s->conf == NULL) {
4624 wpa_printf(MSG_ERROR, "\nNo configuration found.");
4628 if (iface->ifname == NULL) {
4629 wpa_printf(MSG_ERROR, "\nInterface name is required.");
4632 if (os_strlen(iface->ifname) >= sizeof(wpa_s->ifname)) {
4633 wpa_printf(MSG_ERROR, "\nToo long interface name '%s'.",
4637 os_strlcpy(wpa_s->ifname, iface->ifname, sizeof(wpa_s->ifname));
4639 if (iface->bridge_ifname) {
4640 if (os_strlen(iface->bridge_ifname) >=
4641 sizeof(wpa_s->bridge_ifname)) {
4642 wpa_printf(MSG_ERROR, "\nToo long bridge interface "
4643 "name '%s'.", iface->bridge_ifname);
4646 os_strlcpy(wpa_s->bridge_ifname, iface->bridge_ifname,
4647 sizeof(wpa_s->bridge_ifname));
4650 /* RSNA Supplicant Key Management - INITIALIZE */
4651 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
4652 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
4654 /* Initialize driver interface and register driver event handler before
4655 * L2 receive handler so that association events are processed before
4656 * EAPOL-Key packets if both become available for the same select()
4658 if (wpas_init_driver(wpa_s, iface) < 0)
4661 if (wpa_supplicant_init_wpa(wpa_s) < 0)
4664 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname,
4665 wpa_s->bridge_ifname[0] ? wpa_s->bridge_ifname :
4667 wpa_sm_set_fast_reauth(wpa_s->wpa, wpa_s->conf->fast_reauth);
4669 if (wpa_s->conf->dot11RSNAConfigPMKLifetime &&
4670 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME,
4671 wpa_s->conf->dot11RSNAConfigPMKLifetime)) {
4672 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4673 "dot11RSNAConfigPMKLifetime");
4677 if (wpa_s->conf->dot11RSNAConfigPMKReauthThreshold &&
4678 wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD,
4679 wpa_s->conf->dot11RSNAConfigPMKReauthThreshold)) {
4680 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4681 "dot11RSNAConfigPMKReauthThreshold");
4685 if (wpa_s->conf->dot11RSNAConfigSATimeout &&
4686 wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT,
4687 wpa_s->conf->dot11RSNAConfigSATimeout)) {
4688 wpa_msg(wpa_s, MSG_ERROR, "Invalid WPA parameter value for "
4689 "dot11RSNAConfigSATimeout");
4693 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(wpa_s,
4694 &wpa_s->hw.num_modes,
4696 if (wpa_s->hw.modes) {
4699 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4700 if (wpa_s->hw.modes[i].vht_capab) {
4701 wpa_s->hw_capab = CAPAB_VHT;
4705 if (wpa_s->hw.modes[i].ht_capab &
4706 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)
4707 wpa_s->hw_capab = CAPAB_HT40;
4708 else if (wpa_s->hw.modes[i].ht_capab &&
4709 wpa_s->hw_capab == CAPAB_NO_HT_VHT)
4710 wpa_s->hw_capab = CAPAB_HT;
4714 capa_res = wpa_drv_get_capa(wpa_s, &capa);
4715 if (capa_res == 0) {
4716 wpa_s->drv_capa_known = 1;
4717 wpa_s->drv_flags = capa.flags;
4718 wpa_s->drv_enc = capa.enc;
4719 wpa_s->drv_smps_modes = capa.smps_modes;
4720 wpa_s->drv_rrm_flags = capa.rrm_flags;
4721 wpa_s->probe_resp_offloads = capa.probe_resp_offloads;
4722 wpa_s->max_scan_ssids = capa.max_scan_ssids;
4723 wpa_s->max_sched_scan_ssids = capa.max_sched_scan_ssids;
4724 wpa_s->max_sched_scan_plans = capa.max_sched_scan_plans;
4725 wpa_s->max_sched_scan_plan_interval =
4726 capa.max_sched_scan_plan_interval;
4727 wpa_s->max_sched_scan_plan_iterations =
4728 capa.max_sched_scan_plan_iterations;
4729 wpa_s->sched_scan_supported = capa.sched_scan_supported;
4730 wpa_s->max_match_sets = capa.max_match_sets;
4731 wpa_s->max_remain_on_chan = capa.max_remain_on_chan;
4732 wpa_s->max_stations = capa.max_stations;
4733 wpa_s->extended_capa = capa.extended_capa;
4734 wpa_s->extended_capa_mask = capa.extended_capa_mask;
4735 wpa_s->extended_capa_len = capa.extended_capa_len;
4736 wpa_s->num_multichan_concurrent =
4737 capa.num_multichan_concurrent;
4738 wpa_s->wmm_ac_supported = capa.wmm_ac_supported;
4740 if (capa.mac_addr_rand_scan_supported)
4741 wpa_s->mac_addr_rand_supported |= MAC_ADDR_RAND_SCAN;
4742 if (wpa_s->sched_scan_supported &&
4743 capa.mac_addr_rand_sched_scan_supported)
4744 wpa_s->mac_addr_rand_supported |=
4745 (MAC_ADDR_RAND_SCHED_SCAN | MAC_ADDR_RAND_PNO);
4747 if (wpa_s->max_remain_on_chan == 0)
4748 wpa_s->max_remain_on_chan = 1000;
4751 * Only take p2p_mgmt parameters when P2P Device is supported.
4752 * Doing it here as it determines whether l2_packet_init() will be done
4753 * during wpa_supplicant_driver_init().
4755 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
4756 wpa_s->p2p_mgmt = iface->p2p_mgmt;
4758 iface->p2p_mgmt = 1;
4760 if (wpa_s->num_multichan_concurrent == 0)
4761 wpa_s->num_multichan_concurrent = 1;
4763 if (wpa_supplicant_driver_init(wpa_s) < 0)
4767 if ((!iface->p2p_mgmt ||
4768 !(wpa_s->drv_flags &
4769 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
4770 wpa_tdls_init(wpa_s->wpa))
4772 #endif /* CONFIG_TDLS */
4774 if (wpa_s->conf->country[0] && wpa_s->conf->country[1] &&
4775 wpa_drv_set_country(wpa_s, wpa_s->conf->country)) {
4776 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to set country");
4781 if (wpa_s->conf->fst_group_id) {
4782 struct fst_iface_cfg cfg;
4783 struct fst_wpa_obj iface_obj;
4785 fst_wpa_supplicant_fill_iface_obj(wpa_s, &iface_obj);
4786 os_strlcpy(cfg.group_id, wpa_s->conf->fst_group_id,
4787 sizeof(cfg.group_id));
4788 cfg.priority = wpa_s->conf->fst_priority;
4789 cfg.llt = wpa_s->conf->fst_llt;
4791 wpa_s->fst = fst_attach(wpa_s->ifname, wpa_s->own_addr,
4794 wpa_msg(wpa_s, MSG_ERROR,
4795 "FST: Cannot attach iface %s to group %s",
4796 wpa_s->ifname, cfg.group_id);
4800 #endif /* CONFIG_FST */
4802 if (wpas_wps_init(wpa_s))
4805 if (wpa_supplicant_init_eapol(wpa_s) < 0)
4807 wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
4809 wpa_s->ctrl_iface = wpa_supplicant_ctrl_iface_init(wpa_s);
4810 if (wpa_s->ctrl_iface == NULL) {
4811 wpa_printf(MSG_ERROR,
4812 "Failed to initialize control interface '%s'.\n"
4813 "You may have another wpa_supplicant process "
4814 "already running or the file was\n"
4815 "left by an unclean termination of wpa_supplicant "
4816 "in which case you will need\n"
4817 "to manually remove this file before starting "
4818 "wpa_supplicant again.\n",
4819 wpa_s->conf->ctrl_interface);
4823 wpa_s->gas = gas_query_init(wpa_s);
4824 if (wpa_s->gas == NULL) {
4825 wpa_printf(MSG_ERROR, "Failed to initialize GAS query");
4829 if (iface->p2p_mgmt && wpas_p2p_init(wpa_s->global, wpa_s) < 0) {
4830 wpa_msg(wpa_s, MSG_ERROR, "Failed to init P2P");
4834 if (wpa_bss_init(wpa_s) < 0)
4838 * Set Wake-on-WLAN triggers, if configured.
4839 * Note: We don't restore/remove the triggers on shutdown (it doesn't
4840 * have effect anyway when the interface is down).
4842 if (capa_res == 0 && wpas_set_wowlan_triggers(wpa_s, &capa) < 0)
4845 #ifdef CONFIG_EAP_PROXY
4848 wpa_s->mnc_len = eapol_sm_get_eap_proxy_imsi(wpa_s->eapol, wpa_s->imsi,
4850 if (wpa_s->mnc_len > 0) {
4851 wpa_s->imsi[len] = '\0';
4852 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI %s (MNC length %d)",
4853 wpa_s->imsi, wpa_s->mnc_len);
4855 wpa_printf(MSG_DEBUG, "eap_proxy: IMSI not available");
4858 #endif /* CONFIG_EAP_PROXY */
4860 if (pcsc_reader_init(wpa_s) < 0)
4863 if (wpas_init_ext_pw(wpa_s) < 0)
4866 wpas_rrm_reset(wpa_s);
4868 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
4872 #endif /* CONFIG_HS20 */
4874 wpas_mbo_update_non_pref_chan(wpa_s, wpa_s->conf->non_pref_chan);
4875 #endif /* CONFIG_MBO */
4877 wpa_supplicant_set_default_scan_ies(wpa_s);
4883 static void wpa_supplicant_deinit_iface(struct wpa_supplicant *wpa_s,
4884 int notify, int terminate)
4886 struct wpa_global *global = wpa_s->global;
4887 struct wpa_supplicant *iface, *prev;
4889 if (wpa_s == wpa_s->parent)
4890 wpas_p2p_group_remove(wpa_s, "*");
4892 iface = global->ifaces;
4894 if (iface->p2pdev == wpa_s)
4895 iface->p2pdev = iface->parent;
4896 if (iface == wpa_s || iface->parent != wpa_s) {
4897 iface = iface->next;
4900 wpa_printf(MSG_DEBUG,
4901 "Remove remaining child interface %s from parent %s",
4902 iface->ifname, wpa_s->ifname);
4904 iface = iface->next;
4905 wpa_supplicant_remove_iface(global, prev, terminate);
4908 wpa_s->disconnected = 1;
4909 if (wpa_s->drv_priv) {
4910 wpa_supplicant_deauthenticate(wpa_s,
4911 WLAN_REASON_DEAUTH_LEAVING);
4913 wpa_drv_set_countermeasures(wpa_s, 0);
4914 wpa_clear_keys(wpa_s, NULL);
4917 wpa_supplicant_cleanup(wpa_s);
4918 wpas_p2p_deinit_iface(wpa_s);
4920 wpas_ctrl_radio_work_flush(wpa_s);
4921 radio_remove_interface(wpa_s);
4925 fst_detach(wpa_s->fst);
4928 if (wpa_s->received_mb_ies) {
4929 wpabuf_free(wpa_s->received_mb_ies);
4930 wpa_s->received_mb_ies = NULL;
4932 #endif /* CONFIG_FST */
4934 if (wpa_s->drv_priv)
4935 wpa_drv_deinit(wpa_s);
4938 wpas_notify_iface_removed(wpa_s);
4941 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TERMINATING);
4943 if (wpa_s->ctrl_iface) {
4944 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
4945 wpa_s->ctrl_iface = NULL;
4950 wpa_supplicant_mesh_iface_deinit(wpa_s, wpa_s->ifmsh);
4951 wpa_s->ifmsh = NULL;
4953 #endif /* CONFIG_MESH */
4955 if (wpa_s->conf != NULL) {
4956 wpa_config_free(wpa_s->conf);
4960 os_free(wpa_s->ssids_from_scan_req);
4966 #ifdef CONFIG_MATCH_IFACE
4969 * wpa_supplicant_match_iface - Match an interface description to a name
4970 * @global: Pointer to global data from wpa_supplicant_init()
4971 * @ifname: Name of the interface to match
4972 * Returns: Pointer to the created interface description or %NULL on failure
4974 struct wpa_interface * wpa_supplicant_match_iface(struct wpa_global *global,
4978 struct wpa_interface *iface, *miface;
4980 for (i = 0; i < global->params.match_iface_count; i++) {
4981 miface = &global->params.match_ifaces[i];
4982 if (!miface->ifname ||
4983 fnmatch(miface->ifname, ifname, 0) == 0) {
4984 iface = os_zalloc(sizeof(*iface));
4988 iface->ifname = ifname;
4998 * wpa_supplicant_match_existing - Match existing interfaces
4999 * @global: Pointer to global data from wpa_supplicant_init()
5000 * Returns: 0 on success, -1 on failure
5002 static int wpa_supplicant_match_existing(struct wpa_global *global)
5004 struct if_nameindex *ifi, *ifp;
5005 struct wpa_supplicant *wpa_s;
5006 struct wpa_interface *iface;
5008 ifp = if_nameindex();
5010 wpa_printf(MSG_ERROR, "if_nameindex: %s", strerror(errno));
5014 for (ifi = ifp; ifi->if_name; ifi++) {
5015 wpa_s = wpa_supplicant_get_iface(global, ifi->if_name);
5018 iface = wpa_supplicant_match_iface(global, ifi->if_name);
5020 wpa_s = wpa_supplicant_add_iface(global, iface, NULL);
5027 if_freenameindex(ifp);
5031 #endif /* CONFIG_MATCH_IFACE */
5035 * wpa_supplicant_add_iface - Add a new network interface
5036 * @global: Pointer to global data from wpa_supplicant_init()
5037 * @iface: Interface configuration options
5038 * @parent: Parent interface or %NULL to assign new interface as parent
5039 * Returns: Pointer to the created interface or %NULL on failure
5041 * This function is used to add new network interfaces for %wpa_supplicant.
5042 * This can be called before wpa_supplicant_run() to add interfaces before the
5043 * main event loop has been started. In addition, new interfaces can be added
5044 * dynamically while %wpa_supplicant is already running. This could happen,
5045 * e.g., when a hotplug network adapter is inserted.
5047 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
5048 struct wpa_interface *iface,
5049 struct wpa_supplicant *parent)
5051 struct wpa_supplicant *wpa_s;
5052 struct wpa_interface t_iface;
5053 struct wpa_ssid *ssid;
5055 if (global == NULL || iface == NULL)
5058 wpa_s = wpa_supplicant_alloc(parent);
5062 wpa_s->global = global;
5065 if (global->params.override_driver) {
5066 wpa_printf(MSG_DEBUG, "Override interface parameter: driver "
5068 iface->driver, global->params.override_driver);
5069 t_iface.driver = global->params.override_driver;
5071 if (global->params.override_ctrl_interface) {
5072 wpa_printf(MSG_DEBUG, "Override interface parameter: "
5073 "ctrl_interface ('%s' -> '%s')",
5074 iface->ctrl_interface,
5075 global->params.override_ctrl_interface);
5076 t_iface.ctrl_interface =
5077 global->params.override_ctrl_interface;
5079 if (wpa_supplicant_init_iface(wpa_s, &t_iface)) {
5080 wpa_printf(MSG_DEBUG, "Failed to add interface %s",
5082 wpa_supplicant_deinit_iface(wpa_s, 0, 0);
5086 if (iface->p2p_mgmt == 0) {
5087 /* Notify the control interfaces about new iface */
5088 if (wpas_notify_iface_added(wpa_s)) {
5089 wpa_supplicant_deinit_iface(wpa_s, 1, 0);
5093 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
5094 wpas_notify_network_added(wpa_s, ssid);
5097 wpa_s->next = global->ifaces;
5098 global->ifaces = wpa_s;
5100 wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname);
5101 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5104 if (wpa_s->global->p2p == NULL &&
5105 !wpa_s->global->p2p_disabled && !wpa_s->conf->p2p_disabled &&
5106 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
5107 wpas_p2p_add_p2pdev_interface(
5108 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
5109 wpa_printf(MSG_INFO,
5110 "P2P: Failed to enable P2P Device interface");
5111 /* Try to continue without. P2P will be disabled. */
5113 #endif /* CONFIG_P2P */
5120 * wpa_supplicant_remove_iface - Remove a network interface
5121 * @global: Pointer to global data from wpa_supplicant_init()
5122 * @wpa_s: Pointer to the network interface to be removed
5123 * Returns: 0 if interface was removed, -1 if interface was not found
5125 * This function can be used to dynamically remove network interfaces from
5126 * %wpa_supplicant, e.g., when a hotplug network adapter is ejected. In
5127 * addition, this function is used to remove all remaining interfaces when
5128 * %wpa_supplicant is terminated.
5130 int wpa_supplicant_remove_iface(struct wpa_global *global,
5131 struct wpa_supplicant *wpa_s,
5134 struct wpa_supplicant *prev;
5136 unsigned int mesh_if_created = wpa_s->mesh_if_created;
5137 char *ifname = NULL;
5138 #endif /* CONFIG_MESH */
5140 /* Remove interface from the global list of interfaces */
5141 prev = global->ifaces;
5142 if (prev == wpa_s) {
5143 global->ifaces = wpa_s->next;
5145 while (prev && prev->next != wpa_s)
5149 prev->next = wpa_s->next;
5152 wpa_dbg(wpa_s, MSG_DEBUG, "Removing interface %s", wpa_s->ifname);
5155 if (mesh_if_created) {
5156 ifname = os_strdup(wpa_s->ifname);
5157 if (ifname == NULL) {
5158 wpa_dbg(wpa_s, MSG_ERROR,
5159 "mesh: Failed to malloc ifname");
5163 #endif /* CONFIG_MESH */
5165 if (global->p2p_group_formation == wpa_s)
5166 global->p2p_group_formation = NULL;
5167 if (global->p2p_invite_group == wpa_s)
5168 global->p2p_invite_group = NULL;
5169 wpa_supplicant_deinit_iface(wpa_s, 1, terminate);
5172 if (mesh_if_created) {
5173 wpa_drv_if_remove(global->ifaces, WPA_IF_MESH, ifname);
5176 #endif /* CONFIG_MESH */
5183 * wpa_supplicant_get_eap_mode - Get the current EAP mode
5184 * @wpa_s: Pointer to the network interface
5185 * Returns: Pointer to the eap mode or the string "UNKNOWN" if not found
5187 const char * wpa_supplicant_get_eap_mode(struct wpa_supplicant *wpa_s)
5189 const char *eapol_method;
5191 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) == 0 &&
5192 wpa_s->key_mgmt != WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
5196 eapol_method = eapol_sm_get_method_name(wpa_s->eapol);
5197 if (eapol_method == NULL)
5198 return "UNKNOWN-EAP";
5200 return eapol_method;
5205 * wpa_supplicant_get_iface - Get a new network interface
5206 * @global: Pointer to global data from wpa_supplicant_init()
5207 * @ifname: Interface name
5208 * Returns: Pointer to the interface or %NULL if not found
5210 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
5213 struct wpa_supplicant *wpa_s;
5215 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5216 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5223 #ifndef CONFIG_NO_WPA_MSG
5224 static const char * wpa_supplicant_msg_ifname_cb(void *ctx)
5226 struct wpa_supplicant *wpa_s = ctx;
5229 return wpa_s->ifname;
5231 #endif /* CONFIG_NO_WPA_MSG */
5234 #ifndef WPA_SUPPLICANT_CLEANUP_INTERVAL
5235 #define WPA_SUPPLICANT_CLEANUP_INTERVAL 10
5236 #endif /* WPA_SUPPLICANT_CLEANUP_INTERVAL */
5238 /* Periodic cleanup tasks */
5239 static void wpas_periodic(void *eloop_ctx, void *timeout_ctx)
5241 struct wpa_global *global = eloop_ctx;
5242 struct wpa_supplicant *wpa_s;
5244 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
5245 wpas_periodic, global, NULL);
5249 p2p_expire_peers(global->p2p);
5250 #endif /* CONFIG_P2P */
5252 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5253 wpa_bss_flush_by_age(wpa_s, wpa_s->conf->bss_expiration_age);
5256 #endif /* CONFIG_AP */
5262 * wpa_supplicant_init - Initialize %wpa_supplicant
5263 * @params: Parameters for %wpa_supplicant
5264 * Returns: Pointer to global %wpa_supplicant data, or %NULL on failure
5266 * This function is used to initialize %wpa_supplicant. After successful
5267 * initialization, the returned data pointer can be used to add and remove
5268 * network interfaces, and eventually, to deinitialize %wpa_supplicant.
5270 struct wpa_global * wpa_supplicant_init(struct wpa_params *params)
5272 struct wpa_global *global;
5278 #ifdef CONFIG_DRIVER_NDIS
5280 void driver_ndis_init_ops(void);
5281 driver_ndis_init_ops();
5283 #endif /* CONFIG_DRIVER_NDIS */
5285 #ifndef CONFIG_NO_WPA_MSG
5286 wpa_msg_register_ifname_cb(wpa_supplicant_msg_ifname_cb);
5287 #endif /* CONFIG_NO_WPA_MSG */
5289 if (params->wpa_debug_file_path)
5290 wpa_debug_open_file(params->wpa_debug_file_path);
5292 wpa_debug_setup_stdout();
5293 if (params->wpa_debug_syslog)
5294 wpa_debug_open_syslog();
5295 if (params->wpa_debug_tracing) {
5296 ret = wpa_debug_open_linux_tracing();
5298 wpa_printf(MSG_ERROR,
5299 "Failed to enable trace logging");
5304 ret = eap_register_methods();
5306 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
5308 wpa_printf(MSG_ERROR, "Two or more EAP methods used "
5309 "the same EAP type.");
5313 global = os_zalloc(sizeof(*global));
5316 dl_list_init(&global->p2p_srv_bonjour);
5317 dl_list_init(&global->p2p_srv_upnp);
5318 global->params.daemonize = params->daemonize;
5319 global->params.wait_for_monitor = params->wait_for_monitor;
5320 global->params.dbus_ctrl_interface = params->dbus_ctrl_interface;
5321 if (params->pid_file)
5322 global->params.pid_file = os_strdup(params->pid_file);
5323 if (params->ctrl_interface)
5324 global->params.ctrl_interface =
5325 os_strdup(params->ctrl_interface);
5326 if (params->ctrl_interface_group)
5327 global->params.ctrl_interface_group =
5328 os_strdup(params->ctrl_interface_group);
5329 if (params->override_driver)
5330 global->params.override_driver =
5331 os_strdup(params->override_driver);
5332 if (params->override_ctrl_interface)
5333 global->params.override_ctrl_interface =
5334 os_strdup(params->override_ctrl_interface);
5335 #ifdef CONFIG_MATCH_IFACE
5336 global->params.match_iface_count = params->match_iface_count;
5337 if (params->match_iface_count) {
5338 global->params.match_ifaces =
5339 os_calloc(params->match_iface_count,
5340 sizeof(struct wpa_interface));
5341 os_memcpy(global->params.match_ifaces,
5342 params->match_ifaces,
5343 params->match_iface_count *
5344 sizeof(struct wpa_interface));
5346 #endif /* CONFIG_MATCH_IFACE */
5348 if (params->conf_p2p_dev)
5349 global->params.conf_p2p_dev =
5350 os_strdup(params->conf_p2p_dev);
5351 #endif /* CONFIG_P2P */
5352 wpa_debug_level = global->params.wpa_debug_level =
5353 params->wpa_debug_level;
5354 wpa_debug_show_keys = global->params.wpa_debug_show_keys =
5355 params->wpa_debug_show_keys;
5356 wpa_debug_timestamp = global->params.wpa_debug_timestamp =
5357 params->wpa_debug_timestamp;
5359 wpa_printf(MSG_DEBUG, "wpa_supplicant v" VERSION_STR);
5362 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
5363 wpa_supplicant_deinit(global);
5367 random_init(params->entropy_file);
5369 global->ctrl_iface = wpa_supplicant_global_ctrl_iface_init(global);
5370 if (global->ctrl_iface == NULL) {
5371 wpa_supplicant_deinit(global);
5375 if (wpas_notify_supplicant_initialized(global)) {
5376 wpa_supplicant_deinit(global);
5380 for (i = 0; wpa_drivers[i]; i++)
5381 global->drv_count++;
5382 if (global->drv_count == 0) {
5383 wpa_printf(MSG_ERROR, "No drivers enabled");
5384 wpa_supplicant_deinit(global);
5387 global->drv_priv = os_calloc(global->drv_count, sizeof(void *));
5388 if (global->drv_priv == NULL) {
5389 wpa_supplicant_deinit(global);
5393 #ifdef CONFIG_WIFI_DISPLAY
5394 if (wifi_display_init(global) < 0) {
5395 wpa_printf(MSG_ERROR, "Failed to initialize Wi-Fi Display");
5396 wpa_supplicant_deinit(global);
5399 #endif /* CONFIG_WIFI_DISPLAY */
5401 eloop_register_timeout(WPA_SUPPLICANT_CLEANUP_INTERVAL, 0,
5402 wpas_periodic, global, NULL);
5409 * wpa_supplicant_run - Run the %wpa_supplicant main event loop
5410 * @global: Pointer to global data from wpa_supplicant_init()
5411 * Returns: 0 after successful event loop run, -1 on failure
5413 * This function starts the main event loop and continues running as long as
5414 * there are any remaining events. In most cases, this function is running as
5415 * long as the %wpa_supplicant process in still in use.
5417 int wpa_supplicant_run(struct wpa_global *global)
5419 struct wpa_supplicant *wpa_s;
5421 if (global->params.daemonize &&
5422 (wpa_supplicant_daemon(global->params.pid_file) ||
5423 eloop_sock_requeue()))
5426 #ifdef CONFIG_MATCH_IFACE
5427 if (wpa_supplicant_match_existing(global))
5431 if (global->params.wait_for_monitor) {
5432 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
5433 if (wpa_s->ctrl_iface && !wpa_s->p2p_mgmt)
5434 wpa_supplicant_ctrl_iface_wait(
5438 eloop_register_signal_terminate(wpa_supplicant_terminate, global);
5439 eloop_register_signal_reconfig(wpa_supplicant_reconfig, global);
5448 * wpa_supplicant_deinit - Deinitialize %wpa_supplicant
5449 * @global: Pointer to global data from wpa_supplicant_init()
5451 * This function is called to deinitialize %wpa_supplicant and to free all
5452 * allocated resources. Remaining network interfaces will also be removed.
5454 void wpa_supplicant_deinit(struct wpa_global *global)
5461 eloop_cancel_timeout(wpas_periodic, global, NULL);
5463 #ifdef CONFIG_WIFI_DISPLAY
5464 wifi_display_deinit(global);
5465 #endif /* CONFIG_WIFI_DISPLAY */
5467 while (global->ifaces)
5468 wpa_supplicant_remove_iface(global, global->ifaces, 1);
5470 if (global->ctrl_iface)
5471 wpa_supplicant_global_ctrl_iface_deinit(global->ctrl_iface);
5473 wpas_notify_supplicant_deinitialized(global);
5475 eap_peer_unregister_methods();
5477 eap_server_unregister_methods();
5478 #endif /* CONFIG_AP */
5480 for (i = 0; wpa_drivers[i] && global->drv_priv; i++) {
5481 if (!global->drv_priv[i])
5483 wpa_drivers[i]->global_deinit(global->drv_priv[i]);
5485 os_free(global->drv_priv);
5491 if (global->params.pid_file) {
5492 os_daemonize_terminate(global->params.pid_file);
5493 os_free(global->params.pid_file);
5495 os_free(global->params.ctrl_interface);
5496 os_free(global->params.ctrl_interface_group);
5497 os_free(global->params.override_driver);
5498 os_free(global->params.override_ctrl_interface);
5499 #ifdef CONFIG_MATCH_IFACE
5500 os_free(global->params.match_ifaces);
5501 #endif /* CONFIG_MATCH_IFACE */
5503 os_free(global->params.conf_p2p_dev);
5504 #endif /* CONFIG_P2P */
5506 os_free(global->p2p_disallow_freq.range);
5507 os_free(global->p2p_go_avoid_freq.range);
5508 os_free(global->add_psk);
5511 wpa_debug_close_syslog();
5512 wpa_debug_close_file();
5513 wpa_debug_close_linux_tracing();
5517 void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s)
5519 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
5520 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
5522 country[0] = wpa_s->conf->country[0];
5523 country[1] = wpa_s->conf->country[1];
5525 if (wpa_drv_set_country(wpa_s, country) < 0) {
5526 wpa_printf(MSG_ERROR, "Failed to set country code "
5531 if (wpa_s->conf->changed_parameters & CFG_CHANGED_EXT_PW_BACKEND)
5532 wpas_init_ext_pw(wpa_s);
5534 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SCHED_SCAN_PLANS)
5535 wpas_sched_scan_plans_set(wpa_s, wpa_s->conf->sched_scan_plans);
5538 wpas_wps_update_config(wpa_s);
5539 #endif /* CONFIG_WPS */
5540 wpas_p2p_update_config(wpa_s);
5541 wpa_s->conf->changed_parameters = 0;
5545 void add_freq(int *freqs, int *num_freqs, int freq)
5549 for (i = 0; i < *num_freqs; i++) {
5550 if (freqs[i] == freq)
5554 freqs[*num_freqs] = freq;
5559 static int * get_bss_freqs_in_ess(struct wpa_supplicant *wpa_s)
5561 struct wpa_bss *bss, *cbss;
5562 const int max_freqs = 10;
5566 freqs = os_calloc(max_freqs + 1, sizeof(int));
5570 cbss = wpa_s->current_bss;
5572 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
5575 if (bss->ssid_len == cbss->ssid_len &&
5576 os_memcmp(bss->ssid, cbss->ssid, bss->ssid_len) == 0 &&
5577 wpa_blacklist_get(wpa_s, bss->bssid) == NULL) {
5578 add_freq(freqs, &num_freqs, bss->freq);
5579 if (num_freqs == max_freqs)
5584 if (num_freqs == 0) {
5593 void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid)
5599 wpas_connect_work_done(wpa_s);
5602 * Remove possible authentication timeout since the connection failed.
5604 eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);
5607 * There is no point in blacklisting the AP if this event is
5608 * generated based on local request to disconnect.
5610 if (wpa_s->own_disconnect_req) {
5611 wpa_s->own_disconnect_req = 0;
5612 wpa_dbg(wpa_s, MSG_DEBUG,
5613 "Ignore connection failure due to local request to disconnect");
5616 if (wpa_s->disconnected) {
5617 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure "
5618 "indication since interface has been put into "
5619 "disconnected state");
5624 * Add the failed BSSID into the blacklist and speed up next scan
5625 * attempt if there could be other APs that could accept association.
5626 * The current blacklist count indicates how many times we have tried
5627 * connecting to this AP and multiple attempts mean that other APs are
5628 * either not available or has already been tried, so that we can start
5629 * increasing the delay here to avoid constant scanning.
5631 count = wpa_blacklist_add(wpa_s, bssid);
5632 if (count == 1 && wpa_s->current_bss) {
5634 * This BSS was not in the blacklist before. If there is
5635 * another BSS available for the same ESS, we should try that
5636 * next. Otherwise, we may as well try this one once more
5637 * before allowing other, likely worse, ESSes to be considered.
5639 freqs = get_bss_freqs_in_ess(wpa_s);
5641 wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS "
5642 "has been seen; try it next");
5643 wpa_blacklist_add(wpa_s, bssid);
5645 * On the next scan, go through only the known channels
5646 * used in this ESS based on previous scans to speed up
5647 * common load balancing use case.
5649 os_free(wpa_s->next_scan_freqs);
5650 wpa_s->next_scan_freqs = freqs;
5655 * Add previous failure count in case the temporary blacklist was
5656 * cleared due to no other BSSes being available.
5658 count += wpa_s->extra_blacklist_count;
5660 if (count > 3 && wpa_s->current_ssid) {
5661 wpa_printf(MSG_DEBUG, "Continuous association failures - "
5662 "consider temporary network disabling");
5663 wpas_auth_failed(wpa_s, "CONN_FAILED");
5684 wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d "
5685 "ms", count, timeout);
5688 * TODO: if more than one possible AP is available in scan results,
5689 * could try the other ones before requesting a new scan.
5691 wpa_supplicant_req_scan(wpa_s, timeout / 1000,
5692 1000 * (timeout % 1000));
5696 int wpas_driver_bss_selection(struct wpa_supplicant *wpa_s)
5698 return wpa_s->conf->ap_scan == 2 ||
5699 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION);
5703 #if defined(CONFIG_CTRL_IFACE) || defined(CONFIG_CTRL_IFACE_DBUS_NEW)
5704 int wpa_supplicant_ctrl_iface_ctrl_rsp_handle(struct wpa_supplicant *wpa_s,
5705 struct wpa_ssid *ssid,
5709 #ifdef IEEE8021X_EAPOL
5710 struct eap_peer_config *eap = &ssid->eap;
5712 wpa_printf(MSG_DEBUG, "CTRL_IFACE: response handle field=%s", field);
5713 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: response value",
5714 (const u8 *) value, os_strlen(value));
5716 switch (wpa_supplicant_ctrl_req_from_string(field)) {
5717 case WPA_CTRL_REQ_EAP_IDENTITY:
5718 os_free(eap->identity);
5719 eap->identity = (u8 *) os_strdup(value);
5720 eap->identity_len = os_strlen(value);
5721 eap->pending_req_identity = 0;
5722 if (ssid == wpa_s->current_ssid)
5723 wpa_s->reassociate = 1;
5725 case WPA_CTRL_REQ_EAP_PASSWORD:
5726 bin_clear_free(eap->password, eap->password_len);
5727 eap->password = (u8 *) os_strdup(value);
5728 eap->password_len = os_strlen(value);
5729 eap->pending_req_password = 0;
5730 if (ssid == wpa_s->current_ssid)
5731 wpa_s->reassociate = 1;
5733 case WPA_CTRL_REQ_EAP_NEW_PASSWORD:
5734 bin_clear_free(eap->new_password, eap->new_password_len);
5735 eap->new_password = (u8 *) os_strdup(value);
5736 eap->new_password_len = os_strlen(value);
5737 eap->pending_req_new_password = 0;
5738 if (ssid == wpa_s->current_ssid)
5739 wpa_s->reassociate = 1;
5741 case WPA_CTRL_REQ_EAP_PIN:
5742 str_clear_free(eap->pin);
5743 eap->pin = os_strdup(value);
5744 eap->pending_req_pin = 0;
5745 if (ssid == wpa_s->current_ssid)
5746 wpa_s->reassociate = 1;
5748 case WPA_CTRL_REQ_EAP_OTP:
5749 bin_clear_free(eap->otp, eap->otp_len);
5750 eap->otp = (u8 *) os_strdup(value);
5751 eap->otp_len = os_strlen(value);
5752 os_free(eap->pending_req_otp);
5753 eap->pending_req_otp = NULL;
5754 eap->pending_req_otp_len = 0;
5756 case WPA_CTRL_REQ_EAP_PASSPHRASE:
5757 str_clear_free(eap->private_key_passwd);
5758 eap->private_key_passwd = os_strdup(value);
5759 eap->pending_req_passphrase = 0;
5760 if (ssid == wpa_s->current_ssid)
5761 wpa_s->reassociate = 1;
5763 case WPA_CTRL_REQ_SIM:
5764 str_clear_free(eap->external_sim_resp);
5765 eap->external_sim_resp = os_strdup(value);
5767 case WPA_CTRL_REQ_PSK_PASSPHRASE:
5768 if (wpa_config_set(ssid, "psk", value, 0) < 0)
5770 ssid->mem_only_psk = 1;
5771 if (ssid->passphrase)
5772 wpa_config_update_psk(ssid);
5773 if (wpa_s->wpa_state == WPA_SCANNING && !wpa_s->scanning)
5774 wpa_supplicant_req_scan(wpa_s, 0, 0);
5776 case WPA_CTRL_REQ_EXT_CERT_CHECK:
5777 if (eap->pending_ext_cert_check != PENDING_CHECK)
5779 if (os_strcmp(value, "good") == 0)
5780 eap->pending_ext_cert_check = EXT_CERT_CHECK_GOOD;
5781 else if (os_strcmp(value, "bad") == 0)
5782 eap->pending_ext_cert_check = EXT_CERT_CHECK_BAD;
5787 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", field);
5792 #else /* IEEE8021X_EAPOL */
5793 wpa_printf(MSG_DEBUG, "CTRL_IFACE: IEEE 802.1X not included");
5795 #endif /* IEEE8021X_EAPOL */
5797 #endif /* CONFIG_CTRL_IFACE || CONFIG_CTRL_IFACE_DBUS_NEW */
5800 int wpas_network_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5803 unsigned int drv_enc;
5805 if (wpa_s->p2p_mgmt)
5806 return 1; /* no normal network profiles on p2p_mgmt interface */
5814 if (wpa_s->drv_capa_known)
5815 drv_enc = wpa_s->drv_enc;
5817 drv_enc = (unsigned int) -1;
5819 for (i = 0; i < NUM_WEP_KEYS; i++) {
5820 size_t len = ssid->wep_key_len[i];
5823 if (len == 5 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP40))
5825 if (len == 13 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP104))
5827 if (len == 16 && (drv_enc & WPA_DRIVER_CAPA_ENC_WEP128))
5829 return 1; /* invalid WEP key */
5832 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
5833 (!ssid->passphrase || ssid->ssid_len != 0) && !ssid->ext_psk &&
5834 !ssid->mem_only_psk)
5841 int wpas_get_ssid_pmf(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
5843 #ifdef CONFIG_IEEE80211W
5844 if (ssid == NULL || ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT) {
5845 if (wpa_s->conf->pmf == MGMT_FRAME_PROTECTION_OPTIONAL &&
5846 !(wpa_s->drv_enc & WPA_DRIVER_CAPA_ENC_BIP)) {
5848 * Driver does not support BIP -- ignore pmf=1 default
5849 * since the connection with PMF would fail and the
5850 * configuration does not require PMF to be enabled.
5852 return NO_MGMT_FRAME_PROTECTION;
5857 ~(WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPS |
5858 WPA_KEY_MGMT_IEEE8021X_NO_WPA)) == 0) {
5860 * Do not use the default PMF value for non-RSN networks
5861 * since PMF is available only with RSN and pmf=2
5862 * configuration would otherwise prevent connections to
5863 * all open networks.
5865 return NO_MGMT_FRAME_PROTECTION;
5868 return wpa_s->conf->pmf;
5871 return ssid->ieee80211w;
5872 #else /* CONFIG_IEEE80211W */
5873 return NO_MGMT_FRAME_PROTECTION;
5874 #endif /* CONFIG_IEEE80211W */
5878 int wpas_is_p2p_prioritized(struct wpa_supplicant *wpa_s)
5880 if (wpa_s->global->conc_pref == WPA_CONC_PREF_P2P)
5882 if (wpa_s->global->conc_pref == WPA_CONC_PREF_STA)
5888 void wpas_auth_failed(struct wpa_supplicant *wpa_s, char *reason)
5890 struct wpa_ssid *ssid = wpa_s->current_ssid;
5892 struct os_reltime now;
5895 wpa_printf(MSG_DEBUG, "Authentication failure but no known "
5900 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS)
5903 ssid->auth_failures++;
5906 if (ssid->p2p_group &&
5907 (wpa_s->p2p_in_provisioning || wpa_s->show_group_started)) {
5909 * Skip the wait time since there is a short timeout on the
5910 * connection to a P2P group.
5914 #endif /* CONFIG_P2P */
5916 if (ssid->auth_failures > 50)
5918 else if (ssid->auth_failures > 10)
5920 else if (ssid->auth_failures > 5)
5922 else if (ssid->auth_failures > 3)
5924 else if (ssid->auth_failures > 2)
5926 else if (ssid->auth_failures > 1)
5931 if (ssid->auth_failures > 1 &&
5932 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt))
5933 dur += os_random() % (ssid->auth_failures * 10);
5935 os_get_reltime(&now);
5936 if (now.sec + dur <= ssid->disabled_until.sec)
5939 ssid->disabled_until.sec = now.sec + dur;
5941 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_TEMP_DISABLED
5942 "id=%d ssid=\"%s\" auth_failures=%u duration=%d reason=%s",
5943 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
5944 ssid->auth_failures, dur, reason);
5948 void wpas_clear_temp_disabled(struct wpa_supplicant *wpa_s,
5949 struct wpa_ssid *ssid, int clear_failures)
5954 if (ssid->disabled_until.sec) {
5955 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REENABLED
5956 "id=%d ssid=\"%s\"",
5957 ssid->id, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
5959 ssid->disabled_until.sec = 0;
5960 ssid->disabled_until.usec = 0;
5962 ssid->auth_failures = 0;
5966 int disallowed_bssid(struct wpa_supplicant *wpa_s, const u8 *bssid)
5970 if (wpa_s->disallow_aps_bssid == NULL)
5973 for (i = 0; i < wpa_s->disallow_aps_bssid_count; i++) {
5974 if (os_memcmp(wpa_s->disallow_aps_bssid + i * ETH_ALEN,
5975 bssid, ETH_ALEN) == 0)
5983 int disallowed_ssid(struct wpa_supplicant *wpa_s, const u8 *ssid,
5988 if (wpa_s->disallow_aps_ssid == NULL || ssid == NULL)
5991 for (i = 0; i < wpa_s->disallow_aps_ssid_count; i++) {
5992 struct wpa_ssid_value *s = &wpa_s->disallow_aps_ssid[i];
5993 if (ssid_len == s->ssid_len &&
5994 os_memcmp(ssid, s->ssid, ssid_len) == 0)
6003 * wpas_request_connection - Request a new connection
6004 * @wpa_s: Pointer to the network interface
6006 * This function is used to request a new connection to be found. It will mark
6007 * the interface to allow reassociation and request a new scan to find a
6008 * suitable network to connect to.
6010 void wpas_request_connection(struct wpa_supplicant *wpa_s)
6012 wpa_s->normal_scans = 0;
6013 wpa_s->scan_req = NORMAL_SCAN_REQ;
6014 wpa_supplicant_reinit_autoscan(wpa_s);
6015 wpa_s->extra_blacklist_count = 0;
6016 wpa_s->disconnected = 0;
6017 wpa_s->reassociate = 1;
6019 if (wpa_supplicant_fast_associate(wpa_s) != 1)
6020 wpa_supplicant_req_scan(wpa_s, 0, 0);
6022 wpa_s->reattach = 0;
6027 * wpas_request_disconnection - Request disconnection
6028 * @wpa_s: Pointer to the network interface
6030 * This function is used to request disconnection from the currently connected
6031 * network. This will stop any ongoing scans and initiate deauthentication.
6033 void wpas_request_disconnection(struct wpa_supplicant *wpa_s)
6036 wpa_s->sme.prev_bssid_set = 0;
6037 #endif /* CONFIG_SME */
6038 wpa_s->reassociate = 0;
6039 wpa_s->disconnected = 1;
6040 wpa_supplicant_cancel_sched_scan(wpa_s);
6041 wpa_supplicant_cancel_scan(wpa_s);
6042 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
6043 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
6047 void dump_freq_data(struct wpa_supplicant *wpa_s, const char *title,
6048 struct wpa_used_freq_data *freqs_data,
6053 wpa_dbg(wpa_s, MSG_DEBUG, "Shared frequencies (len=%u): %s",
6055 for (i = 0; i < len; i++) {
6056 struct wpa_used_freq_data *cur = &freqs_data[i];
6057 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d, flags=0x%X",
6058 i, cur->freq, cur->flags);
6064 * Find the operating frequencies of any of the virtual interfaces that
6065 * are using the same radio as the current interface, and in addition, get
6066 * information about the interface types that are using the frequency.
6068 int get_shared_radio_freqs_data(struct wpa_supplicant *wpa_s,
6069 struct wpa_used_freq_data *freqs_data,
6072 struct wpa_supplicant *ifs;
6075 unsigned int idx = 0, i;
6077 wpa_dbg(wpa_s, MSG_DEBUG,
6078 "Determining shared radio frequencies (max len %u)", len);
6079 os_memset(freqs_data, 0, sizeof(struct wpa_used_freq_data) * len);
6081 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6086 if (ifs->current_ssid == NULL || ifs->assoc_freq == 0)
6089 if (ifs->current_ssid->mode == WPAS_MODE_AP ||
6090 ifs->current_ssid->mode == WPAS_MODE_P2P_GO ||
6091 ifs->current_ssid->mode == WPAS_MODE_MESH)
6092 freq = ifs->current_ssid->frequency;
6093 else if (wpa_drv_get_bssid(ifs, bssid) == 0)
6094 freq = ifs->assoc_freq;
6098 /* Hold only distinct freqs */
6099 for (i = 0; i < idx; i++)
6100 if (freqs_data[i].freq == freq)
6104 freqs_data[idx++].freq = freq;
6106 if (ifs->current_ssid->mode == WPAS_MODE_INFRA) {
6107 freqs_data[i].flags |= ifs->current_ssid->p2p_group ?
6108 WPA_FREQ_USED_BY_P2P_CLIENT :
6109 WPA_FREQ_USED_BY_INFRA_STATION;
6113 dump_freq_data(wpa_s, "completed iteration", freqs_data, idx);
6119 * Find the operating frequencies of any of the virtual interfaces that
6120 * are using the same radio as the current interface.
6122 int get_shared_radio_freqs(struct wpa_supplicant *wpa_s,
6123 int *freq_array, unsigned int len)
6125 struct wpa_used_freq_data *freqs_data;
6128 os_memset(freq_array, 0, sizeof(int) * len);
6130 freqs_data = os_calloc(len, sizeof(struct wpa_used_freq_data));
6134 num = get_shared_radio_freqs_data(wpa_s, freqs_data, len);
6135 for (i = 0; i < num; i++)
6136 freq_array[i] = freqs_data[i].freq;
6138 os_free(freqs_data);
6144 static void wpas_rrm_neighbor_rep_timeout_handler(void *data, void *user_ctx)
6146 struct rrm_data *rrm = data;
6148 if (!rrm->notify_neighbor_rep) {
6149 wpa_printf(MSG_ERROR,
6150 "RRM: Unexpected neighbor report timeout");
6154 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report - NONE");
6155 rrm->notify_neighbor_rep(rrm->neighbor_rep_cb_ctx, NULL);
6157 rrm->notify_neighbor_rep = NULL;
6158 rrm->neighbor_rep_cb_ctx = NULL;
6163 * wpas_rrm_reset - Clear and reset all RRM data in wpa_supplicant
6164 * @wpa_s: Pointer to wpa_supplicant
6166 void wpas_rrm_reset(struct wpa_supplicant *wpa_s)
6168 wpa_s->rrm.rrm_used = 0;
6170 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
6172 if (wpa_s->rrm.notify_neighbor_rep)
6173 wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL);
6174 wpa_s->rrm.next_neighbor_rep_token = 1;
6179 * wpas_rrm_process_neighbor_rep - Handle incoming neighbor report
6180 * @wpa_s: Pointer to wpa_supplicant
6181 * @report: Neighbor report buffer, prefixed by a 1-byte dialog token
6182 * @report_len: Length of neighbor report buffer
6184 void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
6185 const u8 *report, size_t report_len)
6187 struct wpabuf *neighbor_rep;
6189 wpa_hexdump(MSG_DEBUG, "RRM: New Neighbor Report", report, report_len);
6193 if (report[0] != wpa_s->rrm.next_neighbor_rep_token - 1) {
6194 wpa_printf(MSG_DEBUG,
6195 "RRM: Discarding neighbor report with token %d (expected %d)",
6196 report[0], wpa_s->rrm.next_neighbor_rep_token - 1);
6200 eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
6203 if (!wpa_s->rrm.notify_neighbor_rep) {
6204 wpa_printf(MSG_ERROR, "RRM: Unexpected neighbor report");
6208 /* skipping the first byte, which is only an id (dialog token) */
6209 neighbor_rep = wpabuf_alloc(report_len - 1);
6210 if (neighbor_rep == NULL)
6212 wpabuf_put_data(neighbor_rep, report + 1, report_len - 1);
6213 wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report (token = %d)",
6215 wpa_s->rrm.notify_neighbor_rep(wpa_s->rrm.neighbor_rep_cb_ctx,
6217 wpa_s->rrm.notify_neighbor_rep = NULL;
6218 wpa_s->rrm.neighbor_rep_cb_ctx = NULL;
6222 #if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
6223 /* Workaround different, undefined for Windows, error codes used here */
6225 #define EOPNOTSUPP -1
6226 #define ECANCELED -1
6229 /* Measurement Request element + Location Subject + Maximum Age subelement */
6230 #define MEASURE_REQUEST_LCI_LEN (3 + 1 + 4)
6231 /* Measurement Request element + Location Civic Request */
6232 #define MEASURE_REQUEST_CIVIC_LEN (3 + 5)
6236 * wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP
6237 * @wpa_s: Pointer to wpa_supplicant
6238 * @ssid: if not null, this is sent in the request. Otherwise, no SSID IE
6239 * is sent in the request.
6240 * @lci: if set, neighbor request will include LCI request
6241 * @civic: if set, neighbor request will include civic location request
6242 * @cb: Callback function to be called once the requested report arrives, or
6243 * timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds.
6244 * In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's
6245 * the requester's responsibility to free it.
6246 * In the latter case NULL will be sent in 'neighbor_rep'.
6247 * @cb_ctx: Context value to send the callback function
6248 * Returns: 0 in case of success, negative error code otherwise
6250 * In case there is a previous request which has not been answered yet, the
6251 * new request fails. The caller may retry after RRM_NEIGHBOR_REPORT_TIMEOUT.
6252 * Request must contain a callback function.
6254 int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
6255 const struct wpa_ssid_value *ssid,
6257 void (*cb)(void *ctx,
6258 struct wpabuf *neighbor_rep),
6264 if (wpa_s->wpa_state != WPA_COMPLETED || wpa_s->current_ssid == NULL) {
6265 wpa_printf(MSG_DEBUG, "RRM: No connection, no RRM.");
6269 if (!wpa_s->rrm.rrm_used) {
6270 wpa_printf(MSG_DEBUG, "RRM: No RRM in current connection.");
6274 rrm_ie = wpa_bss_get_ie(wpa_s->current_bss,
6275 WLAN_EID_RRM_ENABLED_CAPABILITIES);
6276 if (!rrm_ie || !(wpa_s->current_bss->caps & IEEE80211_CAP_RRM) ||
6277 !(rrm_ie[2] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
6278 wpa_printf(MSG_DEBUG,
6279 "RRM: No network support for Neighbor Report.");
6284 wpa_printf(MSG_DEBUG,
6285 "RRM: Neighbor Report request must provide a callback.");
6289 /* Refuse if there's a live request */
6290 if (wpa_s->rrm.notify_neighbor_rep) {
6291 wpa_printf(MSG_DEBUG,
6292 "RRM: Currently handling previous Neighbor Report.");
6296 /* 3 = action category + action code + dialog token */
6297 buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0) +
6298 (lci ? 2 + MEASURE_REQUEST_LCI_LEN : 0) +
6299 (civic ? 2 + MEASURE_REQUEST_CIVIC_LEN : 0));
6301 wpa_printf(MSG_DEBUG,
6302 "RRM: Failed to allocate Neighbor Report Request");
6306 wpa_printf(MSG_DEBUG, "RRM: Neighbor report request (for %s), token=%d",
6307 (ssid ? wpa_ssid_txt(ssid->ssid, ssid->ssid_len) : ""),
6308 wpa_s->rrm.next_neighbor_rep_token);
6310 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6311 wpabuf_put_u8(buf, WLAN_RRM_NEIGHBOR_REPORT_REQUEST);
6312 wpabuf_put_u8(buf, wpa_s->rrm.next_neighbor_rep_token);
6314 wpabuf_put_u8(buf, WLAN_EID_SSID);
6315 wpabuf_put_u8(buf, ssid->ssid_len);
6316 wpabuf_put_data(buf, ssid->ssid, ssid->ssid_len);
6320 /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
6321 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
6322 wpabuf_put_u8(buf, MEASURE_REQUEST_LCI_LEN);
6325 * Measurement token; nonzero number that is unique among the
6326 * Measurement Request elements in a particular frame.
6328 wpabuf_put_u8(buf, 1); /* Measurement Token */
6331 * Parallel, Enable, Request, and Report bits are 0, Duration is
6334 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
6335 wpabuf_put_u8(buf, MEASURE_TYPE_LCI); /* Measurement Type */
6337 /* IEEE P802.11-REVmc/D5.0 9.4.2.21.10 - LCI request */
6338 /* Location Subject */
6339 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
6341 /* Optional Subelements */
6343 * IEEE P802.11-REVmc/D5.0 Figure 9-170
6344 * The Maximum Age subelement is required, otherwise the AP can
6345 * send only data that was determined after receiving the
6346 * request. Setting it here to unlimited age.
6348 wpabuf_put_u8(buf, LCI_REQ_SUBELEM_MAX_AGE);
6349 wpabuf_put_u8(buf, 2);
6350 wpabuf_put_le16(buf, 0xffff);
6354 /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
6355 wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
6356 wpabuf_put_u8(buf, MEASURE_REQUEST_CIVIC_LEN);
6359 * Measurement token; nonzero number that is unique among the
6360 * Measurement Request elements in a particular frame.
6362 wpabuf_put_u8(buf, 2); /* Measurement Token */
6365 * Parallel, Enable, Request, and Report bits are 0, Duration is
6368 wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
6369 /* Measurement Type */
6370 wpabuf_put_u8(buf, MEASURE_TYPE_LOCATION_CIVIC);
6372 /* IEEE P802.11-REVmc/D5.0 9.4.2.21.14:
6373 * Location Civic request */
6374 /* Location Subject */
6375 wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
6376 wpabuf_put_u8(buf, 0); /* Civic Location Type: IETF RFC 4776 */
6377 /* Location Service Interval Units: Seconds */
6378 wpabuf_put_u8(buf, 0);
6379 /* Location Service Interval: 0 - Only one report is requested
6381 wpabuf_put_le16(buf, 0);
6382 /* No optional subelements */
6385 wpa_s->rrm.next_neighbor_rep_token++;
6387 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
6388 wpa_s->own_addr, wpa_s->bssid,
6389 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
6390 wpa_printf(MSG_DEBUG,
6391 "RRM: Failed to send Neighbor Report Request");
6396 wpa_s->rrm.neighbor_rep_cb_ctx = cb_ctx;
6397 wpa_s->rrm.notify_neighbor_rep = cb;
6398 eloop_register_timeout(RRM_NEIGHBOR_REPORT_TIMEOUT, 0,
6399 wpas_rrm_neighbor_rep_timeout_handler,
6407 static struct wpabuf * wpas_rrm_build_lci_report(struct wpa_supplicant *wpa_s,
6408 const u8 *request, size_t len,
6409 struct wpabuf *report)
6411 u8 token, type, subject;
6413 struct os_reltime t, diff;
6414 unsigned long diff_l;
6418 if (!wpa_s->lci || len < 3 + 4)
6422 /* Measurement request mode isn't used */
6425 subject = *request++;
6427 wpa_printf(MSG_DEBUG,
6428 "Measurement request token %u type %u location subject %u",
6429 token, type, subject);
6431 if (type != MEASURE_TYPE_LCI || subject != LOCATION_SUBJECT_REMOTE) {
6432 wpa_printf(MSG_INFO,
6433 "Not building LCI report - bad type or location subject");
6437 /* Subelements are formatted exactly like elements */
6438 subelem = get_ie(request, len, LCI_REQ_SUBELEM_MAX_AGE);
6439 if (subelem && subelem[1] == 2)
6440 max_age = WPA_GET_LE16(subelem + 2);
6442 if (os_get_reltime(&t))
6445 os_reltime_sub(&t, &wpa_s->lci_time, &diff);
6446 /* LCI age is calculated in 10th of a second units. */
6447 diff_l = diff.sec * 10 + diff.usec / 100000;
6449 if (max_age != 0xffff && max_age < diff_l)
6452 if (wpabuf_resize(&report, 2 + wpabuf_len(wpa_s->lci)))
6455 wpabuf_put_u8(report, WLAN_EID_MEASURE_REPORT);
6456 wpabuf_put_u8(report, wpabuf_len(wpa_s->lci));
6457 /* We'll override user's measurement token */
6458 ptoken = wpabuf_put(report, 0);
6459 wpabuf_put_buf(report, wpa_s->lci);
6466 void wpas_rrm_handle_radio_measurement_request(struct wpa_supplicant *wpa_s,
6468 const u8 *frame, size_t len)
6470 struct wpabuf *buf, *report;
6474 if (wpa_s->wpa_state != WPA_COMPLETED) {
6475 wpa_printf(MSG_INFO,
6476 "RRM: Ignoring radio measurement request: Not associated");
6480 if (!wpa_s->rrm.rrm_used) {
6481 wpa_printf(MSG_INFO,
6482 "RRM: Ignoring radio measurement request: Not RRM network");
6487 wpa_printf(MSG_INFO,
6488 "RRM: Ignoring too short radio measurement request");
6496 /* Ignore number of repetitions because it's not used in LCI request */
6500 while ((ie = get_ie(frame, end - frame, WLAN_EID_MEASURE_REQUEST)) &&
6505 wpa_printf(MSG_DEBUG, "RRM request %d", msmt_type);
6507 switch (msmt_type) {
6508 case MEASURE_TYPE_LCI:
6509 report = wpas_rrm_build_lci_report(wpa_s, ie + 2, ie[1],
6513 wpa_printf(MSG_INFO,
6514 "RRM: Unsupported radio measurement request %d",
6519 frame = ie + ie[1] + 2;
6525 buf = wpabuf_alloc(3 + wpabuf_len(report));
6527 wpabuf_free(report);
6531 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6532 wpabuf_put_u8(buf, WLAN_RRM_RADIO_MEASUREMENT_REPORT);
6533 wpabuf_put_u8(buf, token);
6535 wpabuf_put_buf(buf, report);
6536 wpabuf_free(report);
6538 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
6539 wpa_s->own_addr, wpa_s->bssid,
6540 wpabuf_head(buf), wpabuf_len(buf), 0)) {
6541 wpa_printf(MSG_ERROR,
6542 "RRM: Radio measurement report failed: Sending Action frame failed");
6548 void wpas_rrm_handle_link_measurement_request(struct wpa_supplicant *wpa_s,
6550 const u8 *frame, size_t len,
6554 const struct rrm_link_measurement_request *req;
6555 struct rrm_link_measurement_report report;
6557 if (wpa_s->wpa_state != WPA_COMPLETED) {
6558 wpa_printf(MSG_INFO,
6559 "RRM: Ignoring link measurement request. Not associated");
6563 if (!wpa_s->rrm.rrm_used) {
6564 wpa_printf(MSG_INFO,
6565 "RRM: Ignoring link measurement request. Not RRM network");
6569 if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)) {
6570 wpa_printf(MSG_INFO,
6571 "RRM: Measurement report failed. TX power insertion not supported");
6575 req = (const struct rrm_link_measurement_request *) frame;
6576 if (len < sizeof(*req)) {
6577 wpa_printf(MSG_INFO,
6578 "RRM: Link measurement report failed. Request too short");
6582 os_memset(&report, 0, sizeof(report));
6583 report.tpc.eid = WLAN_EID_TPC_REPORT;
6585 report.rsni = 255; /* 255 indicates that RSNI is not available */
6586 report.dialog_token = req->dialog_token;
6589 * It's possible to estimate RCPI based on RSSI in dBm. This
6590 * calculation will not reflect the correct value for high rates,
6591 * but it's good enough for Action frames which are transmitted
6592 * with up to 24 Mbps rates.
6595 report.rcpi = 255; /* not available */
6596 else if (rssi < -110)
6601 report.rcpi = (rssi + 110) * 2;
6603 /* action_category + action_code */
6604 buf = wpabuf_alloc(2 + sizeof(report));
6606 wpa_printf(MSG_ERROR,
6607 "RRM: Link measurement report failed. Buffer allocation failed");
6611 wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
6612 wpabuf_put_u8(buf, WLAN_RRM_LINK_MEASUREMENT_REPORT);
6613 wpabuf_put_data(buf, &report, sizeof(report));
6614 wpa_hexdump(MSG_DEBUG, "RRM: Link measurement report:",
6615 wpabuf_head(buf), wpabuf_len(buf));
6617 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
6618 wpa_s->own_addr, wpa_s->bssid,
6619 wpabuf_head(buf), wpabuf_len(buf), 0)) {
6620 wpa_printf(MSG_ERROR,
6621 "RRM: Link measurement report failed. Send action failed");
6627 struct wpa_supplicant *
6628 wpas_vendor_elem(struct wpa_supplicant *wpa_s, enum wpa_vendor_elem_frame frame)
6632 case VENDOR_ELEM_PROBE_REQ_P2P:
6633 case VENDOR_ELEM_PROBE_RESP_P2P:
6634 case VENDOR_ELEM_PROBE_RESP_P2P_GO:
6635 case VENDOR_ELEM_BEACON_P2P_GO:
6636 case VENDOR_ELEM_P2P_PD_REQ:
6637 case VENDOR_ELEM_P2P_PD_RESP:
6638 case VENDOR_ELEM_P2P_GO_NEG_REQ:
6639 case VENDOR_ELEM_P2P_GO_NEG_RESP:
6640 case VENDOR_ELEM_P2P_GO_NEG_CONF:
6641 case VENDOR_ELEM_P2P_INV_REQ:
6642 case VENDOR_ELEM_P2P_INV_RESP:
6643 case VENDOR_ELEM_P2P_ASSOC_REQ:
6644 case VENDOR_ELEM_P2P_ASSOC_RESP:
6645 return wpa_s->p2pdev;
6646 #endif /* CONFIG_P2P */
6653 void wpas_vendor_elem_update(struct wpa_supplicant *wpa_s)
6658 wpa_printf(MSG_DEBUG, "Update vendor elements");
6660 for (i = 0; i < NUM_VENDOR_ELEM_FRAMES; i++) {
6661 if (wpa_s->vendor_elem[i]) {
6664 res = os_snprintf(buf, sizeof(buf), "frame[%u]", i);
6665 if (!os_snprintf_error(sizeof(buf), res)) {
6666 wpa_hexdump_buf(MSG_DEBUG, buf,
6667 wpa_s->vendor_elem[i]);
6673 if (wpa_s->parent == wpa_s &&
6674 wpa_s->global->p2p &&
6675 !wpa_s->global->p2p_disabled)
6676 p2p_set_vendor_elems(wpa_s->global->p2p, wpa_s->vendor_elem);
6677 #endif /* CONFIG_P2P */
6681 int wpas_vendor_elem_remove(struct wpa_supplicant *wpa_s, int frame,
6682 const u8 *elem, size_t len)
6686 ie = wpabuf_mhead_u8(wpa_s->vendor_elem[frame]);
6687 end = ie + wpabuf_len(wpa_s->vendor_elem[frame]);
6689 for (; ie + 1 < end; ie += 2 + ie[1]) {
6692 if (os_memcmp(ie, elem, len) != 0)
6695 if (wpabuf_len(wpa_s->vendor_elem[frame]) == len) {
6696 wpabuf_free(wpa_s->vendor_elem[frame]);
6697 wpa_s->vendor_elem[frame] = NULL;
6699 os_memmove(ie, ie + len, end - (ie + len));
6700 wpa_s->vendor_elem[frame]->used -= len;
6702 wpas_vendor_elem_update(wpa_s);
6710 struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
6711 u16 num_modes, enum hostapd_hw_mode mode)
6715 for (i = 0; i < num_modes; i++) {
6716 if (modes[i].mode == mode)
6725 wpa_bss_tmp_disallowed * wpas_get_disallowed_bss(struct wpa_supplicant *wpa_s,
6728 struct wpa_bss_tmp_disallowed *bss;
6730 dl_list_for_each(bss, &wpa_s->bss_tmp_disallowed,
6731 struct wpa_bss_tmp_disallowed, list) {
6732 if (os_memcmp(bssid, bss->bssid, ETH_ALEN) == 0)
6740 void wpa_bss_tmp_disallow(struct wpa_supplicant *wpa_s, const u8 *bssid,
6743 struct wpa_bss_tmp_disallowed *bss;
6744 struct os_reltime until;
6746 os_get_reltime(&until);
6749 bss = wpas_get_disallowed_bss(wpa_s, bssid);
6751 bss->disallowed_until = until;
6755 bss = os_malloc(sizeof(*bss));
6757 wpa_printf(MSG_DEBUG,
6758 "Failed to allocate memory for temp disallow BSS");
6762 bss->disallowed_until = until;
6763 os_memcpy(bss->bssid, bssid, ETH_ALEN);
6764 dl_list_add(&wpa_s->bss_tmp_disallowed, &bss->list);
6768 int wpa_is_bss_tmp_disallowed(struct wpa_supplicant *wpa_s, const u8 *bssid)
6770 struct wpa_bss_tmp_disallowed *bss = NULL, *tmp, *prev;
6771 struct os_reltime now, age;
6773 os_get_reltime(&now);
6775 dl_list_for_each_safe(tmp, prev, &wpa_s->bss_tmp_disallowed,
6776 struct wpa_bss_tmp_disallowed, list) {
6777 if (!os_reltime_before(&now, &tmp->disallowed_until)) {
6778 /* This BSS is not disallowed anymore */
6779 dl_list_del(&tmp->list);
6783 if (os_memcmp(bssid, tmp->bssid, ETH_ALEN) == 0) {
6791 os_reltime_sub(&bss->disallowed_until, &now, &age);
6792 wpa_printf(MSG_DEBUG,
6793 "BSS " MACSTR " disabled for %ld.%0ld seconds",
6794 MAC2STR(bss->bssid), age.sec, age.usec);