3 * Copyright (c) 2009-2012, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
12 #include "utils/eloop.h"
13 #include "common/ieee802_11_defs.h"
14 #include "common/ieee802_11_common.h"
15 #include "eapol_supp/eapol_supp_sm.h"
16 #include "common/wpa_common.h"
17 #include "common/sae.h"
18 #include "rsn_supp/wpa.h"
19 #include "rsn_supp/pmksa_cache.h"
21 #include "wpa_supplicant_i.h"
23 #include "wpas_glue.h"
24 #include "wps_supplicant.h"
25 #include "p2p_supplicant.h"
30 #include "hs20_supplicant.h"
32 #define SME_AUTH_TIMEOUT 5
33 #define SME_ASSOC_TIMEOUT 5
35 static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx);
36 static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx);
37 static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx);
38 #ifdef CONFIG_IEEE80211W
39 static void sme_stop_sa_query(struct wpa_supplicant *wpa_s);
40 #endif /* CONFIG_IEEE80211W */
45 static int index_within_array(const int *array, int idx)
48 for (i = 0; i < idx; i++) {
56 static int sme_set_sae_group(struct wpa_supplicant *wpa_s)
58 int *groups = wpa_s->conf->sae_groups;
59 int default_groups[] = { 19, 20, 21, 25, 26 };
62 groups = default_groups;
64 /* Configuration may have changed, so validate current index */
65 if (!index_within_array(groups, wpa_s->sme.sae_group_index))
69 int group = groups[wpa_s->sme.sae_group_index];
72 if (sae_set_group(&wpa_s->sme.sae, group) == 0) {
73 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected SAE group %d",
74 wpa_s->sme.sae.group);
77 wpa_s->sme.sae_group_index++;
84 static struct wpabuf * sme_auth_build_sae_commit(struct wpa_supplicant *wpa_s,
85 struct wpa_ssid *ssid,
91 if (ssid->passphrase == NULL) {
92 wpa_printf(MSG_DEBUG, "SAE: No password available");
96 if (sme_set_sae_group(wpa_s) < 0) {
97 wpa_printf(MSG_DEBUG, "SAE: Failed to select group");
101 if (sae_prepare_commit(wpa_s->own_addr, bssid,
102 (u8 *) ssid->passphrase,
103 os_strlen(ssid->passphrase),
104 &wpa_s->sme.sae) < 0) {
105 wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE");
109 len = wpa_s->sme.sae_token ? wpabuf_len(wpa_s->sme.sae_token) : 0;
110 buf = wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN + len);
114 wpabuf_put_le16(buf, 1); /* Transaction seq# */
115 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
116 sae_write_commit(&wpa_s->sme.sae, buf, wpa_s->sme.sae_token);
122 static struct wpabuf * sme_auth_build_sae_confirm(struct wpa_supplicant *wpa_s)
126 buf = wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN);
130 wpabuf_put_le16(buf, 2); /* Transaction seq# */
131 wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
132 sae_write_confirm(&wpa_s->sme.sae, buf);
137 #endif /* CONFIG_SAE */
140 static void sme_send_authentication(struct wpa_supplicant *wpa_s,
141 struct wpa_bss *bss, struct wpa_ssid *ssid,
144 struct wpa_driver_auth_params params;
145 struct wpa_ssid *old_ssid;
146 #ifdef CONFIG_IEEE80211R
148 #endif /* CONFIG_IEEE80211R */
149 #ifdef CONFIG_IEEE80211R
151 #endif /* CONFIG_IEEE80211R */
152 int i, bssid_changed;
153 struct wpabuf *resp = NULL;
158 wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for "
163 wpa_s->current_bss = bss;
165 os_memset(¶ms, 0, sizeof(params));
166 wpa_s->reassociate = 0;
168 params.freq = bss->freq;
169 params.bssid = bss->bssid;
170 params.ssid = bss->ssid;
171 params.ssid_len = bss->ssid_len;
172 params.p2p = ssid->p2p_group;
174 if (wpa_s->sme.ssid_len != params.ssid_len ||
175 os_memcmp(wpa_s->sme.ssid, params.ssid, params.ssid_len) != 0)
176 wpa_s->sme.prev_bssid_set = 0;
178 wpa_s->sme.freq = params.freq;
179 os_memcpy(wpa_s->sme.ssid, params.ssid, params.ssid_len);
180 wpa_s->sme.ssid_len = params.ssid_len;
182 params.auth_alg = WPA_AUTH_ALG_OPEN;
183 #ifdef IEEE8021X_EAPOL
184 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
186 if (ssid->non_leap == 0)
187 params.auth_alg = WPA_AUTH_ALG_LEAP;
189 params.auth_alg |= WPA_AUTH_ALG_LEAP;
192 #endif /* IEEE8021X_EAPOL */
193 wpa_dbg(wpa_s, MSG_DEBUG, "Automatic auth_alg selection: 0x%x",
195 if (ssid->auth_alg) {
196 params.auth_alg = ssid->auth_alg;
197 wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
198 "0x%x", params.auth_alg);
201 if (wpa_key_mgmt_sae(ssid->key_mgmt)) {
203 struct wpa_ie_data ied;
205 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
207 wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0) {
208 if (wpa_key_mgmt_sae(ied.key_mgmt)) {
209 wpa_dbg(wpa_s, MSG_DEBUG, "Using SAE auth_alg");
210 params.auth_alg = WPA_AUTH_ALG_SAE;
214 #endif /* CONFIG_SAE */
216 for (i = 0; i < NUM_WEP_KEYS; i++) {
217 if (ssid->wep_key_len[i])
218 params.wep_key[i] = ssid->wep_key[i];
219 params.wep_key_len[i] = ssid->wep_key_len[i];
221 params.wep_tx_keyidx = ssid->wep_tx_keyidx;
223 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
224 os_memset(wpa_s->bssid, 0, ETH_ALEN);
225 os_memcpy(wpa_s->pending_bssid, bss->bssid, ETH_ALEN);
227 wpas_notify_bssid_changed(wpa_s);
229 if ((wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE) ||
230 wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
231 wpa_key_mgmt_wpa(ssid->key_mgmt)) {
232 int try_opportunistic;
233 try_opportunistic = (ssid->proactive_key_caching < 0 ?
235 ssid->proactive_key_caching) &&
236 (ssid->proto & WPA_PROTO_RSN);
237 if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
239 try_opportunistic) == 0)
240 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
241 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
242 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
243 wpa_s->sme.assoc_req_ie,
244 &wpa_s->sme.assoc_req_ie_len)) {
245 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
246 "key management and encryption suites");
249 } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
250 wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
252 * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
253 * use non-WPA since the scan results did not indicate that the
254 * AP is using WPA or WPA2.
256 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
257 wpa_s->sme.assoc_req_ie_len = 0;
258 } else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
259 wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
260 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
261 wpa_s->sme.assoc_req_ie,
262 &wpa_s->sme.assoc_req_ie_len)) {
263 wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
264 "key management and encryption suites (no "
269 } else if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
270 struct wpabuf *wps_ie;
271 wps_ie = wps_build_assoc_req_ie(wpas_wps_get_req_type(ssid));
272 if (wps_ie && wpabuf_len(wps_ie) <=
273 sizeof(wpa_s->sme.assoc_req_ie)) {
274 wpa_s->sme.assoc_req_ie_len = wpabuf_len(wps_ie);
275 os_memcpy(wpa_s->sme.assoc_req_ie, wpabuf_head(wps_ie),
276 wpa_s->sme.assoc_req_ie_len);
278 wpa_s->sme.assoc_req_ie_len = 0;
280 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
281 #endif /* CONFIG_WPS */
283 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
284 wpa_s->sme.assoc_req_ie_len = 0;
287 #ifdef CONFIG_IEEE80211R
288 ie = wpa_bss_get_ie(bss, WLAN_EID_MOBILITY_DOMAIN);
289 if (ie && ie[1] >= MOBILITY_DOMAIN_ID_LEN)
291 wpa_sm_set_ft_params(wpa_s->wpa, ie, ie ? 2 + ie[1] : 0);
293 /* Prepare for the next transition */
294 wpa_ft_prepare_auth_request(wpa_s->wpa, ie);
297 if (md && wpa_key_mgmt_ft(ssid->key_mgmt)) {
298 if (wpa_s->sme.assoc_req_ie_len + 5 <
299 sizeof(wpa_s->sme.assoc_req_ie)) {
300 struct rsn_mdie *mdie;
301 u8 *pos = wpa_s->sme.assoc_req_ie +
302 wpa_s->sme.assoc_req_ie_len;
303 *pos++ = WLAN_EID_MOBILITY_DOMAIN;
304 *pos++ = sizeof(*mdie);
305 mdie = (struct rsn_mdie *) pos;
306 os_memcpy(mdie->mobility_domain, md,
307 MOBILITY_DOMAIN_ID_LEN);
308 mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN];
309 wpa_s->sme.assoc_req_ie_len += 5;
312 if (wpa_s->sme.ft_used &&
313 os_memcmp(md, wpa_s->sme.mobility_domain, 2) == 0 &&
314 wpa_sm_has_ptk(wpa_s->wpa)) {
315 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying to use FT "
317 params.auth_alg = WPA_AUTH_ALG_FT;
318 params.ie = wpa_s->sme.ft_ies;
319 params.ie_len = wpa_s->sme.ft_ies_len;
322 #endif /* CONFIG_IEEE80211R */
324 #ifdef CONFIG_IEEE80211W
325 wpa_s->sme.mfp = ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
326 wpa_s->conf->pmf : ssid->ieee80211w;
327 if (wpa_s->sme.mfp != NO_MGMT_FRAME_PROTECTION) {
328 const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
329 struct wpa_ie_data _ie;
330 if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 &&
332 (WPA_CAPABILITY_MFPC | WPA_CAPABILITY_MFPR)) {
333 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected AP supports "
335 wpa_s->sme.mfp = MGMT_FRAME_PROTECTION_REQUIRED;
338 #endif /* CONFIG_IEEE80211W */
341 if (wpa_s->global->p2p) {
345 pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
346 len = sizeof(wpa_s->sme.assoc_req_ie) -
347 wpa_s->sme.assoc_req_ie_len;
348 res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len,
351 wpa_s->sme.assoc_req_ie_len += res;
353 #endif /* CONFIG_P2P */
356 if (wpa_s->conf->hs20) {
358 hs20 = wpabuf_alloc(20);
360 wpas_hs20_add_indication(hs20);
361 os_memcpy(wpa_s->sme.assoc_req_ie +
362 wpa_s->sme.assoc_req_ie_len,
363 wpabuf_head(hs20), wpabuf_len(hs20));
364 wpa_s->sme.assoc_req_ie_len += wpabuf_len(hs20);
368 #endif /* CONFIG_HS20 */
370 ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab);
371 if (ext_capab_len > 0) {
372 u8 *pos = wpa_s->sme.assoc_req_ie;
373 if (wpa_s->sme.assoc_req_ie_len > 0 && pos[0] == WLAN_EID_RSN)
375 os_memmove(pos + ext_capab_len, pos,
376 wpa_s->sme.assoc_req_ie_len -
377 (pos - wpa_s->sme.assoc_req_ie));
378 wpa_s->sme.assoc_req_ie_len += ext_capab_len;
379 os_memcpy(pos, ext_capab, ext_capab_len);
383 if (params.auth_alg == WPA_AUTH_ALG_SAE) {
385 resp = sme_auth_build_sae_commit(wpa_s, ssid,
388 resp = sme_auth_build_sae_confirm(wpa_s);
391 params.sae_data = wpabuf_head(resp);
392 params.sae_data_len = wpabuf_len(resp);
393 wpa_s->sme.sae.state = start ? SAE_COMMITTED : SAE_CONFIRMED;
395 #endif /* CONFIG_SAE */
397 wpa_supplicant_cancel_sched_scan(wpa_s);
398 wpa_supplicant_cancel_scan(wpa_s);
400 wpa_msg(wpa_s, MSG_INFO, "SME: Trying to authenticate with " MACSTR
401 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
402 wpa_ssid_txt(params.ssid, params.ssid_len), params.freq);
404 wpa_clear_keys(wpa_s, bss->bssid);
405 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
406 old_ssid = wpa_s->current_ssid;
407 wpa_s->current_ssid = ssid;
408 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
409 wpa_supplicant_initiate_eapol(wpa_s);
410 if (old_ssid != wpa_s->current_ssid)
411 wpas_notify_network_changed(wpa_s);
413 wpa_s->sme.auth_alg = params.auth_alg;
414 if (wpa_drv_authenticate(wpa_s, ¶ms) < 0) {
415 wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the "
417 wpas_connection_failed(wpa_s, bss->bssid);
418 wpa_supplicant_mark_disassoc(wpa_s);
423 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
427 * Association will be started based on the authentication event from
435 void sme_authenticate(struct wpa_supplicant *wpa_s,
436 struct wpa_bss *bss, struct wpa_ssid *ssid)
439 wpa_s->sme.sae.state = SAE_NOTHING;
440 wpa_s->sme.sae.send_confirm = 0;
441 #endif /* CONFIG_SAE */
442 sme_send_authentication(wpa_s, bss, ssid, 1);
448 static int sme_sae_auth(struct wpa_supplicant *wpa_s, u16 auth_transaction,
449 u16 status_code, const u8 *data, size_t len)
451 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE authentication transaction %u "
452 "status code %u", auth_transaction, status_code);
454 if (auth_transaction == 1 &&
455 status_code == WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ &&
456 wpa_s->sme.sae.state == SAE_COMMITTED &&
457 wpa_s->current_bss && wpa_s->current_ssid) {
458 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE anti-clogging token "
460 wpabuf_free(wpa_s->sme.sae_token);
461 wpa_s->sme.sae_token = wpabuf_alloc_copy(data, len);
462 sme_send_authentication(wpa_s, wpa_s->current_bss,
463 wpa_s->current_ssid, 1);
467 if (auth_transaction == 1 &&
468 status_code == WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
469 wpa_s->sme.sae.state == SAE_COMMITTED &&
470 wpa_s->current_bss && wpa_s->current_ssid) {
471 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE group not supported");
472 wpa_s->sme.sae_group_index++;
473 if (sme_set_sae_group(wpa_s) < 0)
474 return -1; /* no other groups enabled */
475 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Try next enabled SAE group");
476 sme_send_authentication(wpa_s, wpa_s->current_bss,
477 wpa_s->current_ssid, 1);
481 if (status_code != WLAN_STATUS_SUCCESS)
484 if (auth_transaction == 1) {
485 wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE commit");
486 if (wpa_s->current_bss == NULL ||
487 wpa_s->current_ssid == NULL)
489 if (wpa_s->sme.sae.state != SAE_COMMITTED)
491 if (sae_parse_commit(&wpa_s->sme.sae, data, len, NULL, NULL,
492 wpa_s->conf->sae_groups) !=
496 if (sae_process_commit(&wpa_s->sme.sae) < 0) {
497 wpa_printf(MSG_DEBUG, "SAE: Failed to process peer "
502 wpabuf_free(wpa_s->sme.sae_token);
503 wpa_s->sme.sae_token = NULL;
504 sme_send_authentication(wpa_s, wpa_s->current_bss,
505 wpa_s->current_ssid, 0);
507 } else if (auth_transaction == 2) {
508 wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE confirm");
509 if (wpa_s->sme.sae.state != SAE_CONFIRMED)
511 if (sae_check_confirm(&wpa_s->sme.sae, data, len) < 0)
513 wpa_s->sme.sae.state = SAE_ACCEPTED;
514 sae_clear_temp_data(&wpa_s->sme.sae);
520 #endif /* CONFIG_SAE */
523 void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data)
525 struct wpa_ssid *ssid = wpa_s->current_ssid;
528 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
529 "when network is not selected");
533 if (wpa_s->wpa_state != WPA_AUTHENTICATING) {
534 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication event "
535 "when not in authenticating state");
539 if (os_memcmp(wpa_s->pending_bssid, data->auth.peer, ETH_ALEN) != 0) {
540 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Ignore authentication with "
541 "unexpected peer " MACSTR,
542 MAC2STR(data->auth.peer));
546 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
547 " auth_type=%d auth_transaction=%d status_code=%d",
548 MAC2STR(data->auth.peer), data->auth.auth_type,
549 data->auth.auth_transaction, data->auth.status_code);
550 wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
551 data->auth.ies, data->auth.ies_len);
553 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
556 if (data->auth.auth_type == WLAN_AUTH_SAE) {
558 res = sme_sae_auth(wpa_s, data->auth.auth_transaction,
559 data->auth.status_code, data->auth.ies,
562 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
563 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
569 wpa_printf(MSG_DEBUG, "SME: SAE completed - setting PMK for "
571 wpa_sm_set_pmk(wpa_s->wpa, wpa_s->sme.sae.pmk, PMK_LEN);
573 #endif /* CONFIG_SAE */
575 if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
576 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication failed (status "
577 "code %d)", data->auth.status_code);
579 if (data->auth.status_code !=
580 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG ||
581 wpa_s->sme.auth_alg == data->auth.auth_type ||
582 wpa_s->current_ssid->auth_alg == WPA_AUTH_ALG_LEAP) {
583 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
584 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
588 switch (data->auth.auth_type) {
590 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_SHARED;
592 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying SHARED auth");
593 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
594 wpa_s->current_ssid);
597 case WLAN_AUTH_SHARED_KEY:
598 wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_LEAP;
600 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Trying LEAP auth");
601 wpa_supplicant_associate(wpa_s, wpa_s->current_bss,
602 wpa_s->current_ssid);
610 #ifdef CONFIG_IEEE80211R
611 if (data->auth.auth_type == WLAN_AUTH_FT) {
612 union wpa_event_data edata;
613 os_memset(&edata, 0, sizeof(edata));
614 edata.ft_ies.ies = data->auth.ies;
615 edata.ft_ies.ies_len = data->auth.ies_len;
616 os_memcpy(edata.ft_ies.target_ap, data->auth.peer, ETH_ALEN);
617 wpa_supplicant_event(wpa_s, EVENT_FT_RESPONSE, &edata);
619 #endif /* CONFIG_IEEE80211R */
621 sme_associate(wpa_s, ssid->mode, data->auth.peer,
622 data->auth.auth_type);
626 void sme_associate(struct wpa_supplicant *wpa_s, enum wpas_mode mode,
627 const u8 *bssid, u16 auth_type)
629 struct wpa_driver_associate_params params;
630 struct ieee802_11_elems elems;
631 #ifdef CONFIG_HT_OVERRIDES
632 struct ieee80211_ht_capabilities htcaps;
633 struct ieee80211_ht_capabilities htcaps_mask;
634 #endif /* CONFIG_HT_OVERRIDES */
636 os_memset(¶ms, 0, sizeof(params));
637 params.bssid = bssid;
638 params.ssid = wpa_s->sme.ssid;
639 params.ssid_len = wpa_s->sme.ssid_len;
640 params.freq = wpa_s->sme.freq;
641 params.bg_scan_period = wpa_s->current_ssid ?
642 wpa_s->current_ssid->bg_scan_period : -1;
643 params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
644 wpa_s->sme.assoc_req_ie : NULL;
645 params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
646 params.pairwise_suite =
647 wpa_cipher_to_suite_driver(wpa_s->pairwise_cipher);
648 params.group_suite = wpa_cipher_to_suite_driver(wpa_s->group_cipher);
649 #ifdef CONFIG_HT_OVERRIDES
650 os_memset(&htcaps, 0, sizeof(htcaps));
651 os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
652 params.htcaps = (u8 *) &htcaps;
653 params.htcaps_mask = (u8 *) &htcaps_mask;
654 wpa_supplicant_apply_ht_overrides(wpa_s, wpa_s->current_ssid, ¶ms);
655 #endif /* CONFIG_HT_OVERRIDES */
656 #ifdef CONFIG_IEEE80211R
657 if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
658 params.wpa_ie = wpa_s->sme.ft_ies;
659 params.wpa_ie_len = wpa_s->sme.ft_ies_len;
661 #endif /* CONFIG_IEEE80211R */
663 params.mgmt_frame_protection = wpa_s->sme.mfp;
664 if (wpa_s->sme.prev_bssid_set)
665 params.prev_bssid = wpa_s->sme.prev_bssid;
667 wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
668 " (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
669 params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
672 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
674 if (params.wpa_ie == NULL ||
675 ieee802_11_parse_elems(params.wpa_ie, params.wpa_ie_len, &elems, 0)
677 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Could not parse own IEs?!");
678 os_memset(&elems, 0, sizeof(elems));
681 params.wpa_proto = WPA_PROTO_RSN;
682 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.rsn_ie - 2,
683 elems.rsn_ie_len + 2);
684 } else if (elems.wpa_ie) {
685 params.wpa_proto = WPA_PROTO_WPA;
686 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.wpa_ie - 2,
687 elems.wpa_ie_len + 2);
689 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
690 if (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)
693 if (wpa_s->parent->set_sta_uapsd)
694 params.uapsd = wpa_s->parent->sta_uapsd;
698 if (wpa_drv_associate(wpa_s, ¶ms) < 0) {
699 wpa_msg(wpa_s, MSG_INFO, "SME: Association request to the "
701 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
702 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
703 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
707 eloop_register_timeout(SME_ASSOC_TIMEOUT, 0, sme_assoc_timer, wpa_s,
712 int sme_update_ft_ies(struct wpa_supplicant *wpa_s, const u8 *md,
713 const u8 *ies, size_t ies_len)
715 if (md == NULL || ies == NULL) {
716 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Remove mobility domain");
717 os_free(wpa_s->sme.ft_ies);
718 wpa_s->sme.ft_ies = NULL;
719 wpa_s->sme.ft_ies_len = 0;
720 wpa_s->sme.ft_used = 0;
724 os_memcpy(wpa_s->sme.mobility_domain, md, MOBILITY_DOMAIN_ID_LEN);
725 wpa_hexdump(MSG_DEBUG, "SME: FT IEs", ies, ies_len);
726 os_free(wpa_s->sme.ft_ies);
727 wpa_s->sme.ft_ies = os_malloc(ies_len);
728 if (wpa_s->sme.ft_ies == NULL)
730 os_memcpy(wpa_s->sme.ft_ies, ies, ies_len);
731 wpa_s->sme.ft_ies_len = ies_len;
736 static void sme_deauth(struct wpa_supplicant *wpa_s)
740 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
742 if (wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
743 WLAN_REASON_DEAUTH_LEAVING) < 0) {
744 wpa_msg(wpa_s, MSG_INFO, "SME: Deauth request to the driver "
747 wpa_s->sme.prev_bssid_set = 0;
749 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
750 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
751 os_memset(wpa_s->bssid, 0, ETH_ALEN);
752 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
754 wpas_notify_bssid_changed(wpa_s);
758 void sme_event_assoc_reject(struct wpa_supplicant *wpa_s,
759 union wpa_event_data *data)
761 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association with " MACSTR " failed: "
762 "status code %d", MAC2STR(wpa_s->pending_bssid),
763 data->assoc_reject.status_code);
765 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
768 * For now, unconditionally terminate the previous authentication. In
769 * theory, this should not be needed, but mac80211 gets quite confused
770 * if the authentication is left pending.. Some roaming cases might
771 * benefit from using the previous authentication, so this could be
772 * optimized in the future.
778 void sme_event_auth_timed_out(struct wpa_supplicant *wpa_s,
779 union wpa_event_data *data)
781 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication timed out");
782 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
783 wpa_supplicant_mark_disassoc(wpa_s);
787 void sme_event_assoc_timed_out(struct wpa_supplicant *wpa_s,
788 union wpa_event_data *data)
790 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association timed out");
791 wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
792 wpa_supplicant_mark_disassoc(wpa_s);
796 void sme_event_disassoc(struct wpa_supplicant *wpa_s,
797 union wpa_event_data *data)
799 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Disassociation event received");
800 if (wpa_s->sme.prev_bssid_set) {
802 * cfg80211/mac80211 can get into somewhat confused state if
803 * the AP only disassociates us and leaves us in authenticated
804 * state. For now, force the state to be cleared to avoid
805 * confusing errors if we try to associate with the AP again.
807 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Deauthenticate to clear "
809 wpa_drv_deauthenticate(wpa_s, wpa_s->sme.prev_bssid,
810 WLAN_REASON_DEAUTH_LEAVING);
815 static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx)
817 struct wpa_supplicant *wpa_s = eloop_ctx;
818 if (wpa_s->wpa_state == WPA_AUTHENTICATING) {
819 wpa_msg(wpa_s, MSG_DEBUG, "SME: Authentication timeout");
825 static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx)
827 struct wpa_supplicant *wpa_s = eloop_ctx;
828 if (wpa_s->wpa_state == WPA_ASSOCIATING) {
829 wpa_msg(wpa_s, MSG_DEBUG, "SME: Association timeout");
835 void sme_state_changed(struct wpa_supplicant *wpa_s)
837 /* Make sure timers are cleaned up appropriately. */
838 if (wpa_s->wpa_state != WPA_ASSOCIATING)
839 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
840 if (wpa_s->wpa_state != WPA_AUTHENTICATING)
841 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
845 void sme_disassoc_while_authenticating(struct wpa_supplicant *wpa_s,
846 const u8 *prev_pending_bssid)
849 * mac80211-workaround to force deauth on failed auth cmd,
850 * requires us to remain in authenticating state to allow the
851 * second authentication attempt to be continued properly.
853 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Allow pending authentication "
854 "to proceed after disconnection event");
855 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
856 os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
859 * Re-arm authentication timer in case auth fails for whatever reason.
861 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
862 eloop_register_timeout(SME_AUTH_TIMEOUT, 0, sme_auth_timer, wpa_s,
867 void sme_deinit(struct wpa_supplicant *wpa_s)
869 os_free(wpa_s->sme.ft_ies);
870 wpa_s->sme.ft_ies = NULL;
871 wpa_s->sme.ft_ies_len = 0;
872 #ifdef CONFIG_IEEE80211W
873 sme_stop_sa_query(wpa_s);
874 #endif /* CONFIG_IEEE80211W */
876 wpabuf_free(wpa_s->sme.sae_token);
877 wpa_s->sme.sae_token = NULL;
878 sae_clear_data(&wpa_s->sme.sae);
879 #endif /* CONFIG_SAE */
881 eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
882 eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
883 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
887 static void sme_send_2040_bss_coex(struct wpa_supplicant *wpa_s,
888 const u8 *chan_list, u8 num_channels,
891 struct ieee80211_2040_bss_coex_ie *bc_ie;
892 struct ieee80211_2040_intol_chan_report *ic_report;
895 wpa_printf(MSG_DEBUG, "SME: Send 20/40 BSS Coexistence to " MACSTR,
896 MAC2STR(wpa_s->bssid));
898 buf = wpabuf_alloc(2 + /* action.category + action_code */
899 sizeof(struct ieee80211_2040_bss_coex_ie) +
900 sizeof(struct ieee80211_2040_intol_chan_report) +
905 wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);
906 wpabuf_put_u8(buf, WLAN_PA_20_40_BSS_COEX);
908 bc_ie = wpabuf_put(buf, sizeof(*bc_ie));
909 bc_ie->element_id = WLAN_EID_20_40_BSS_COEXISTENCE;
912 bc_ie->coex_param |= WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ;
914 if (num_channels > 0) {
915 ic_report = wpabuf_put(buf, sizeof(*ic_report));
916 ic_report->element_id = WLAN_EID_20_40_BSS_INTOLERANT;
917 ic_report->length = num_channels + 1;
918 ic_report->op_class = 0;
919 os_memcpy(wpabuf_put(buf, num_channels), chan_list,
923 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
924 wpa_s->own_addr, wpa_s->bssid,
925 wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
926 wpa_msg(wpa_s, MSG_INFO,
927 "SME: Failed to send 20/40 BSS Coexistence frame");
935 * enum wpas_band - Frequency band
936 * @WPAS_BAND_2GHZ: 2.4 GHz ISM band
937 * @WPAS_BAND_5GHZ: around 5 GHz band (4.9 - 5.7 GHz)
946 * freq_to_channel - Convert frequency into channel info
947 * @channel: Buffer for returning channel number
948 * Returns: Band (2 or 5 GHz)
950 static enum wpas_band freq_to_channel(int freq, u8 *channel)
952 enum wpas_band band = (freq <= 2484) ? WPAS_BAND_2GHZ : WPAS_BAND_5GHZ;
955 if (freq >= 2412 && freq <= 2472)
956 chan = (freq - 2407) / 5;
957 else if (freq == 2484)
959 else if (freq >= 5180 && freq <= 5805)
960 chan = (freq - 5000) / 5;
967 int sme_proc_obss_scan(struct wpa_supplicant *wpa_s)
972 u8 chan_list[P2P_MAX_CHANNELS], channel;
973 u8 num_channels = 0, num_intol = 0, i;
975 if (!wpa_s->sme.sched_obss_scan)
978 wpa_s->sme.sched_obss_scan = 0;
979 if (!wpa_s->current_bss || wpa_s->wpa_state != WPA_COMPLETED)
983 * Check whether AP uses regulatory triplet or channel triplet in
984 * country info. Right now the operating class of the BSS channel
985 * width trigger event is "unknown" (IEEE Std 802.11-2012 10.15.12),
986 * based on the assumption that operating class triplet is not used in
987 * beacon frame. If the First Channel Number/Operating Extension
988 * Identifier octet has a positive integer value of 201 or greater,
989 * then its operating class triplet.
991 * TODO: If Supported Operating Classes element is present in beacon
992 * frame, have to lookup operating class in Annex E and fill them in
995 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY);
996 if (ie && (ie[1] >= 6) && (ie[5] >= 201))
999 os_memset(chan_list, 0, sizeof(chan_list));
1001 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1002 /* Skip other band bss */
1003 if (freq_to_channel(bss->freq, &channel) != WPAS_BAND_2GHZ)
1006 ie = wpa_bss_get_ie(bss, WLAN_EID_HT_CAP);
1007 ht_cap = (ie && (ie[1] == 26)) ? WPA_GET_LE16(ie + 2) : 0;
1009 if (!ht_cap || (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)) {
1010 /* Check whether the channel is already considered */
1011 for (i = 0; i < num_channels; i++) {
1012 if (channel == chan_list[i])
1015 if (i != num_channels)
1018 if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
1021 chan_list[num_channels++] = channel;
1025 sme_send_2040_bss_coex(wpa_s, chan_list, num_channels, num_intol);
1030 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
1032 enum hostapd_hw_mode mode)
1036 for (i = 0; i < num_modes; i++) {
1037 if (modes[i].mode == mode)
1045 static void wpa_setband_scan_freqs_list(struct wpa_supplicant *wpa_s,
1046 enum hostapd_hw_mode band,
1047 struct wpa_driver_scan_params *params)
1049 /* Include only supported channels for the specified band */
1050 struct hostapd_hw_modes *mode;
1053 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, band);
1055 /* No channels supported in this band - use empty list */
1056 params->freqs = os_zalloc(sizeof(int));
1060 params->freqs = os_calloc(mode->num_channels + 1, sizeof(int));
1061 if (params->freqs == NULL)
1063 for (count = 0, i = 0; i < mode->num_channels; i++) {
1064 if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
1066 params->freqs[count++] = mode->channels[i].freq;
1071 static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1073 struct wpa_supplicant *wpa_s = eloop_ctx;
1074 struct wpa_driver_scan_params params;
1076 if (!wpa_s->current_bss) {
1077 wpa_printf(MSG_DEBUG, "SME OBSS: Ignore scan request");
1081 os_memset(¶ms, 0, sizeof(params));
1082 wpa_setband_scan_freqs_list(wpa_s, HOSTAPD_MODE_IEEE80211G, ¶ms);
1083 wpa_printf(MSG_DEBUG, "SME OBSS: Request an OBSS scan");
1085 if (wpa_supplicant_trigger_scan(wpa_s, ¶ms))
1086 wpa_printf(MSG_DEBUG, "SME OBSS: Failed to trigger scan");
1088 wpa_s->sme.sched_obss_scan = 1;
1089 os_free(params.freqs);
1091 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
1092 sme_obss_scan_timeout, wpa_s, NULL);
1096 void sme_sched_obss_scan(struct wpa_supplicant *wpa_s, int enable)
1099 struct wpa_bss *bss = wpa_s->current_bss;
1100 struct wpa_ssid *ssid = wpa_s->current_ssid;
1101 struct hostapd_hw_modes *hw_mode = NULL;
1104 eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
1105 wpa_s->sme.sched_obss_scan = 0;
1110 * Schedule OBSS scan if driver is using station SME in wpa_supplicant
1111 * or it expects OBSS scan to be performed by wpa_supplicant.
1113 if (!((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
1114 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OBSS_SCAN)) ||
1115 ssid == NULL || ssid->mode != IEEE80211_MODE_INFRA)
1118 if (!wpa_s->hw.modes)
1121 /* only HT caps in 11g mode are relevant */
1122 for (i = 0; i < wpa_s->hw.num_modes; i++) {
1123 hw_mode = &wpa_s->hw.modes[i];
1124 if (hw_mode->mode == HOSTAPD_MODE_IEEE80211G)
1128 /* Driver does not support HT40 for 11g or doesn't have 11g. */
1129 if (i == wpa_s->hw.num_modes || !hw_mode ||
1130 !(hw_mode->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1133 if (bss == NULL || bss->freq < 2400 || bss->freq > 2500)
1134 return; /* Not associated on 2.4 GHz band */
1136 /* Check whether AP supports HT40 */
1137 ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_CAP);
1138 if (!ie || ie[1] < 2 ||
1139 !(WPA_GET_LE16(ie + 2) & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1140 return; /* AP does not support HT40 */
1142 ie = wpa_bss_get_ie(wpa_s->current_bss,
1143 WLAN_EID_OVERLAPPING_BSS_SCAN_PARAMS);
1144 if (!ie || ie[1] < 14)
1145 return; /* AP does not request OBSS scans */
1147 wpa_s->sme.obss_scan_int = WPA_GET_LE16(ie + 6);
1148 if (wpa_s->sme.obss_scan_int < 10) {
1149 wpa_printf(MSG_DEBUG, "SME: Invalid OBSS Scan Interval %u "
1150 "replaced with the minimum 10 sec",
1151 wpa_s->sme.obss_scan_int);
1152 wpa_s->sme.obss_scan_int = 10;
1154 wpa_printf(MSG_DEBUG, "SME: OBSS Scan Interval %u sec",
1155 wpa_s->sme.obss_scan_int);
1156 eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
1157 sme_obss_scan_timeout, wpa_s, NULL);
1161 #ifdef CONFIG_IEEE80211W
1163 static const unsigned int sa_query_max_timeout = 1000;
1164 static const unsigned int sa_query_retry_timeout = 201;
1166 static int sme_check_sa_query_timeout(struct wpa_supplicant *wpa_s)
1169 struct os_time now, passed;
1171 os_time_sub(&now, &wpa_s->sme.sa_query_start, &passed);
1172 tu = (passed.sec * 1000000 + passed.usec) / 1024;
1173 if (sa_query_max_timeout < tu) {
1174 wpa_dbg(wpa_s, MSG_DEBUG, "SME: SA Query timed out");
1175 sme_stop_sa_query(wpa_s);
1176 wpa_supplicant_deauthenticate(
1177 wpa_s, WLAN_REASON_PREV_AUTH_NOT_VALID);
1185 static void sme_send_sa_query_req(struct wpa_supplicant *wpa_s,
1188 u8 req[2 + WLAN_SA_QUERY_TR_ID_LEN];
1189 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Sending SA Query Request to "
1190 MACSTR, MAC2STR(wpa_s->bssid));
1191 wpa_hexdump(MSG_DEBUG, "SME: SA Query Transaction ID",
1192 trans_id, WLAN_SA_QUERY_TR_ID_LEN);
1193 req[0] = WLAN_ACTION_SA_QUERY;
1194 req[1] = WLAN_SA_QUERY_REQUEST;
1195 os_memcpy(req + 2, trans_id, WLAN_SA_QUERY_TR_ID_LEN);
1196 if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
1197 wpa_s->own_addr, wpa_s->bssid,
1198 req, sizeof(req), 0) < 0)
1199 wpa_msg(wpa_s, MSG_INFO, "SME: Failed to send SA Query "
1204 static void sme_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
1206 struct wpa_supplicant *wpa_s = eloop_ctx;
1207 unsigned int timeout, sec, usec;
1208 u8 *trans_id, *nbuf;
1210 if (wpa_s->sme.sa_query_count > 0 &&
1211 sme_check_sa_query_timeout(wpa_s))
1214 nbuf = os_realloc_array(wpa_s->sme.sa_query_trans_id,
1215 wpa_s->sme.sa_query_count + 1,
1216 WLAN_SA_QUERY_TR_ID_LEN);
1219 if (wpa_s->sme.sa_query_count == 0) {
1220 /* Starting a new SA Query procedure */
1221 os_get_time(&wpa_s->sme.sa_query_start);
1223 trans_id = nbuf + wpa_s->sme.sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
1224 wpa_s->sme.sa_query_trans_id = nbuf;
1225 wpa_s->sme.sa_query_count++;
1227 os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN);
1229 timeout = sa_query_retry_timeout;
1230 sec = ((timeout / 1000) * 1024) / 1000;
1231 usec = (timeout % 1000) * 1024;
1232 eloop_register_timeout(sec, usec, sme_sa_query_timer, wpa_s, NULL);
1234 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Association SA Query attempt %d",
1235 wpa_s->sme.sa_query_count);
1237 sme_send_sa_query_req(wpa_s, trans_id);
1241 static void sme_start_sa_query(struct wpa_supplicant *wpa_s)
1243 sme_sa_query_timer(wpa_s, NULL);
1247 static void sme_stop_sa_query(struct wpa_supplicant *wpa_s)
1249 eloop_cancel_timeout(sme_sa_query_timer, wpa_s, NULL);
1250 os_free(wpa_s->sme.sa_query_trans_id);
1251 wpa_s->sme.sa_query_trans_id = NULL;
1252 wpa_s->sme.sa_query_count = 0;
1256 void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s, const u8 *sa,
1257 const u8 *da, u16 reason_code)
1259 struct wpa_ssid *ssid;
1261 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1263 if (wpa_s->wpa_state != WPA_COMPLETED)
1265 ssid = wpa_s->current_ssid;
1267 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
1268 wpa_s->conf->pmf : ssid->ieee80211w) == NO_MGMT_FRAME_PROTECTION)
1270 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
1272 if (reason_code != WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA &&
1273 reason_code != WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA)
1275 if (wpa_s->sme.sa_query_count > 0)
1278 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Unprotected disconnect dropped - "
1279 "possible AP/STA state mismatch - trigger SA Query");
1280 sme_start_sa_query(wpa_s);
1284 void sme_sa_query_rx(struct wpa_supplicant *wpa_s, const u8 *sa,
1285 const u8 *data, size_t len)
1289 if (wpa_s->sme.sa_query_trans_id == NULL ||
1290 len < 1 + WLAN_SA_QUERY_TR_ID_LEN ||
1291 data[0] != WLAN_SA_QUERY_RESPONSE)
1293 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Received SA Query response from "
1294 MACSTR " (trans_id %02x%02x)", MAC2STR(sa), data[1], data[2]);
1296 if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
1299 for (i = 0; i < wpa_s->sme.sa_query_count; i++) {
1300 if (os_memcmp(wpa_s->sme.sa_query_trans_id +
1301 i * WLAN_SA_QUERY_TR_ID_LEN,
1302 data + 1, WLAN_SA_QUERY_TR_ID_LEN) == 0)
1306 if (i >= wpa_s->sme.sa_query_count) {
1307 wpa_dbg(wpa_s, MSG_DEBUG, "SME: No matching SA Query "
1308 "transaction identifier found");
1312 wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reply to pending SA Query received "
1313 "from " MACSTR, MAC2STR(sa));
1314 sme_stop_sa_query(wpa_s);
1317 #endif /* CONFIG_IEEE80211W */