1 // SPDX-License-Identifier: GPL-2.0
3 * SME code for cfg80211
4 * both driver SME event handling and the SME implementation
5 * (for nl80211's connect() and wext)
7 * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
8 * Copyright (C) 2009, 2020, 2022 Intel Corporation. All rights reserved.
9 * Copyright 2017 Intel Deutschland GmbH
12 #include <linux/etherdevice.h>
13 #include <linux/if_arp.h>
14 #include <linux/slab.h>
15 #include <linux/workqueue.h>
16 #include <linux/wireless.h>
17 #include <linux/export.h>
18 #include <net/iw_handler.h>
19 #include <net/cfg80211.h>
20 #include <net/rtnetlink.h>
26 * Software SME in cfg80211, using auth/assoc/deauth calls to the
27 * driver. This is for implementing nl80211's connect/disconnect
28 * and wireless extensions (if configured.)
31 struct cfg80211_conn {
32 struct cfg80211_connect_params params;
33 /* these are sub-states of the _CONNECTING sme_state */
35 CFG80211_CONN_SCANNING,
36 CFG80211_CONN_SCAN_AGAIN,
37 CFG80211_CONN_AUTHENTICATE_NEXT,
38 CFG80211_CONN_AUTHENTICATING,
39 CFG80211_CONN_AUTH_FAILED_TIMEOUT,
40 CFG80211_CONN_ASSOCIATE_NEXT,
41 CFG80211_CONN_ASSOCIATING,
42 CFG80211_CONN_ASSOC_FAILED,
43 CFG80211_CONN_ASSOC_FAILED_TIMEOUT,
45 CFG80211_CONN_ABANDON,
46 CFG80211_CONN_CONNECTED,
48 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
51 bool auto_auth, prev_bssid_valid;
54 static void cfg80211_sme_free(struct wireless_dev *wdev)
59 kfree(wdev->conn->ie);
64 static int cfg80211_conn_scan(struct wireless_dev *wdev)
66 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
67 struct cfg80211_scan_request *request;
70 ASSERT_WDEV_LOCK(wdev);
72 if (rdev->scan_req || rdev->scan_msg)
75 if (wdev->conn->params.channel)
78 n_channels = ieee80211_get_num_supported_channels(wdev->wiphy);
80 request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) +
81 sizeof(request->channels[0]) * n_channels,
86 if (wdev->conn->params.channel) {
87 enum nl80211_band band = wdev->conn->params.channel->band;
88 struct ieee80211_supported_band *sband =
89 wdev->wiphy->bands[band];
95 request->channels[0] = wdev->conn->params.channel;
96 request->rates[band] = (1 << sband->n_bitrates) - 1;
99 enum nl80211_band band;
100 struct ieee80211_supported_band *bands;
101 struct ieee80211_channel *channel;
103 for (band = 0; band < NUM_NL80211_BANDS; band++) {
104 bands = wdev->wiphy->bands[band];
107 for (j = 0; j < bands->n_channels; j++) {
108 channel = &bands->channels[j];
109 if (channel->flags & IEEE80211_CHAN_DISABLED)
111 request->channels[i++] = channel;
113 request->rates[band] = (1 << bands->n_bitrates) - 1;
117 request->n_channels = n_channels;
118 request->ssids = (void *)&request->channels[n_channels];
119 request->n_ssids = 1;
121 memcpy(request->ssids[0].ssid, wdev->conn->params.ssid,
122 wdev->conn->params.ssid_len);
123 request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
125 eth_broadcast_addr(request->bssid);
127 request->wdev = wdev;
128 request->wiphy = &rdev->wiphy;
129 request->scan_start = jiffies;
131 rdev->scan_req = request;
133 err = rdev_scan(rdev, request);
135 wdev->conn->state = CFG80211_CONN_SCANNING;
136 nl80211_send_scan_start(rdev, wdev);
137 dev_hold(wdev->netdev);
139 rdev->scan_req = NULL;
145 static int cfg80211_conn_do_work(struct wireless_dev *wdev,
146 enum nl80211_timeout_reason *treason)
148 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
149 struct cfg80211_connect_params *params;
150 struct cfg80211_auth_request auth_req = {};
151 struct cfg80211_assoc_request req = {};
154 ASSERT_WDEV_LOCK(wdev);
159 params = &wdev->conn->params;
161 switch (wdev->conn->state) {
162 case CFG80211_CONN_SCANNING:
163 /* didn't find it during scan ... */
165 case CFG80211_CONN_SCAN_AGAIN:
166 return cfg80211_conn_scan(wdev);
167 case CFG80211_CONN_AUTHENTICATE_NEXT:
168 if (WARN_ON(!rdev->ops->auth))
170 wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
171 auth_req.key = params->key;
172 auth_req.key_len = params->key_len;
173 auth_req.key_idx = params->key_idx;
174 auth_req.auth_type = params->auth_type;
175 auth_req.bss = cfg80211_get_bss(&rdev->wiphy, params->channel,
177 params->ssid, params->ssid_len,
178 IEEE80211_BSS_TYPE_ESS,
179 IEEE80211_PRIVACY_ANY);
180 auth_req.link_id = -1;
181 err = cfg80211_mlme_auth(rdev, wdev->netdev, &auth_req);
182 cfg80211_put_bss(&rdev->wiphy, auth_req.bss);
184 case CFG80211_CONN_AUTH_FAILED_TIMEOUT:
185 *treason = NL80211_TIMEOUT_AUTH;
187 case CFG80211_CONN_ASSOCIATE_NEXT:
188 if (WARN_ON(!rdev->ops->assoc))
190 wdev->conn->state = CFG80211_CONN_ASSOCIATING;
191 if (wdev->conn->prev_bssid_valid)
192 req.prev_bssid = wdev->conn->prev_bssid;
194 req.ie_len = params->ie_len;
195 req.use_mfp = params->mfp != NL80211_MFP_NO;
196 req.crypto = params->crypto;
197 req.flags = params->flags;
198 req.ht_capa = params->ht_capa;
199 req.ht_capa_mask = params->ht_capa_mask;
200 req.vht_capa = params->vht_capa;
201 req.vht_capa_mask = params->vht_capa_mask;
204 req.bss = cfg80211_get_bss(&rdev->wiphy, params->channel,
206 params->ssid, params->ssid_len,
207 IEEE80211_BSS_TYPE_ESS,
208 IEEE80211_PRIVACY_ANY);
212 err = cfg80211_mlme_assoc(rdev, wdev->netdev, &req);
213 cfg80211_put_bss(&rdev->wiphy, req.bss);
217 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
219 WLAN_REASON_DEAUTH_LEAVING,
222 case CFG80211_CONN_ASSOC_FAILED_TIMEOUT:
223 *treason = NL80211_TIMEOUT_ASSOC;
225 case CFG80211_CONN_ASSOC_FAILED:
226 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
228 WLAN_REASON_DEAUTH_LEAVING, false);
230 case CFG80211_CONN_DEAUTH:
231 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
233 WLAN_REASON_DEAUTH_LEAVING, false);
235 case CFG80211_CONN_ABANDON:
236 /* free directly, disconnected event already sent */
237 cfg80211_sme_free(wdev);
244 void cfg80211_conn_work(struct work_struct *work)
246 struct cfg80211_registered_device *rdev =
247 container_of(work, struct cfg80211_registered_device, conn_work);
248 struct wireless_dev *wdev;
249 u8 bssid_buf[ETH_ALEN], *bssid = NULL;
250 enum nl80211_timeout_reason treason;
252 wiphy_lock(&rdev->wiphy);
254 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
259 if (!netif_running(wdev->netdev)) {
264 wdev->conn->state == CFG80211_CONN_CONNECTED) {
268 if (wdev->conn->params.bssid) {
269 memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
272 treason = NL80211_TIMEOUT_UNSPECIFIED;
273 if (cfg80211_conn_do_work(wdev, &treason)) {
274 struct cfg80211_connect_resp_params cr;
276 memset(&cr, 0, sizeof(cr));
278 cr.links[0].bssid = bssid;
279 cr.timeout_reason = treason;
280 __cfg80211_connect_result(wdev->netdev, &cr, false);
285 wiphy_unlock(&rdev->wiphy);
288 /* Returned bss is reference counted and must be cleaned up appropriately. */
289 static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
291 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
292 struct cfg80211_bss *bss;
294 ASSERT_WDEV_LOCK(wdev);
296 bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
297 wdev->conn->params.bssid,
298 wdev->conn->params.ssid,
299 wdev->conn->params.ssid_len,
301 IEEE80211_PRIVACY(wdev->conn->params.privacy));
305 memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN);
306 wdev->conn->params.bssid = wdev->conn->bssid;
307 wdev->conn->params.channel = bss->channel;
308 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
309 schedule_work(&rdev->conn_work);
314 static void __cfg80211_sme_scan_done(struct net_device *dev)
316 struct wireless_dev *wdev = dev->ieee80211_ptr;
317 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
318 struct cfg80211_bss *bss;
320 ASSERT_WDEV_LOCK(wdev);
325 if (wdev->conn->state != CFG80211_CONN_SCANNING &&
326 wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
329 bss = cfg80211_get_conn_bss(wdev);
331 cfg80211_put_bss(&rdev->wiphy, bss);
333 schedule_work(&rdev->conn_work);
336 void cfg80211_sme_scan_done(struct net_device *dev)
338 struct wireless_dev *wdev = dev->ieee80211_ptr;
341 __cfg80211_sme_scan_done(dev);
345 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len)
347 struct wiphy *wiphy = wdev->wiphy;
348 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
349 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
350 u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
352 ASSERT_WDEV_LOCK(wdev);
354 if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED)
357 if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
358 wdev->conn->auto_auth &&
359 wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
360 /* select automatically between only open, shared, leap */
361 switch (wdev->conn->params.auth_type) {
362 case NL80211_AUTHTYPE_OPEN_SYSTEM:
363 if (wdev->connect_keys)
364 wdev->conn->params.auth_type =
365 NL80211_AUTHTYPE_SHARED_KEY;
367 wdev->conn->params.auth_type =
368 NL80211_AUTHTYPE_NETWORK_EAP;
370 case NL80211_AUTHTYPE_SHARED_KEY:
371 wdev->conn->params.auth_type =
372 NL80211_AUTHTYPE_NETWORK_EAP;
376 wdev->conn->params.auth_type =
377 NL80211_AUTHTYPE_OPEN_SYSTEM;
380 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
381 schedule_work(&rdev->conn_work);
382 } else if (status_code != WLAN_STATUS_SUCCESS) {
383 struct cfg80211_connect_resp_params cr;
385 memset(&cr, 0, sizeof(cr));
386 cr.status = status_code;
387 cr.links[0].bssid = mgmt->bssid;
388 cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED;
389 __cfg80211_connect_result(wdev->netdev, &cr, false);
390 } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
391 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
392 schedule_work(&rdev->conn_work);
396 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status)
398 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
403 if (status == WLAN_STATUS_SUCCESS) {
404 wdev->conn->state = CFG80211_CONN_CONNECTED;
408 if (wdev->conn->prev_bssid_valid) {
410 * Some stupid APs don't accept reassoc, so we
411 * need to fall back to trying regular assoc;
412 * return true so no event is sent to userspace.
414 wdev->conn->prev_bssid_valid = false;
415 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
416 schedule_work(&rdev->conn_work);
420 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED;
421 schedule_work(&rdev->conn_work);
425 void cfg80211_sme_deauth(struct wireless_dev *wdev)
427 cfg80211_sme_free(wdev);
430 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev)
432 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
437 wdev->conn->state = CFG80211_CONN_AUTH_FAILED_TIMEOUT;
438 schedule_work(&rdev->conn_work);
441 void cfg80211_sme_disassoc(struct wireless_dev *wdev)
443 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
448 wdev->conn->state = CFG80211_CONN_DEAUTH;
449 schedule_work(&rdev->conn_work);
452 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev)
454 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
459 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED_TIMEOUT;
460 schedule_work(&rdev->conn_work);
463 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev)
465 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
470 wdev->conn->state = CFG80211_CONN_ABANDON;
471 schedule_work(&rdev->conn_work);
474 static void cfg80211_wdev_release_bsses(struct wireless_dev *wdev)
478 for_each_valid_link(wdev, link) {
479 if (!wdev->links[link].client.current_bss)
481 cfg80211_unhold_bss(wdev->links[link].client.current_bss);
482 cfg80211_put_bss(wdev->wiphy,
483 &wdev->links[link].client.current_bss->pub);
484 wdev->links[link].client.current_bss = NULL;
488 static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev,
489 const u8 *ies, size_t ies_len,
490 const u8 **out_ies, size_t *out_ies_len)
492 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
496 if (!rdev->wiphy.extended_capabilities_len ||
497 (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) {
498 *out_ies = kmemdup(ies, ies_len, GFP_KERNEL);
501 *out_ies_len = ies_len;
505 buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2,
511 static const u8 before_extcapa[] = {
512 /* not listing IEs expected to be created by driver */
515 WLAN_EID_RRM_ENABLED_CAPABILITIES,
516 WLAN_EID_MOBILITY_DOMAIN,
517 WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
518 WLAN_EID_BSS_COEX_2040,
521 offs = ieee80211_ie_split(ies, ies_len, before_extcapa,
522 ARRAY_SIZE(before_extcapa), 0);
523 memcpy(buf, ies, offs);
524 /* leave a whole for extended capabilities IE */
525 memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2,
526 ies + offs, ies_len - offs);
531 /* place extended capabilities IE (with only driver capabilities) */
532 buf[offs] = WLAN_EID_EXT_CAPABILITY;
533 buf[offs + 1] = rdev->wiphy.extended_capabilities_len;
534 memcpy(buf + offs + 2,
535 rdev->wiphy.extended_capabilities,
536 rdev->wiphy.extended_capabilities_len);
539 *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2;
544 static int cfg80211_sme_connect(struct wireless_dev *wdev,
545 struct cfg80211_connect_params *connect,
546 const u8 *prev_bssid)
548 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
549 struct cfg80211_bss *bss;
552 if (!rdev->ops->auth || !rdev->ops->assoc)
555 cfg80211_wdev_release_bsses(wdev);
557 if (wdev->connected) {
558 cfg80211_sme_free(wdev);
559 wdev->connected = false;
565 wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
570 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
572 memcpy(&wdev->conn->params, connect, sizeof(*connect));
573 if (connect->bssid) {
574 wdev->conn->params.bssid = wdev->conn->bssid;
575 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
578 if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len,
580 &wdev->conn->params.ie_len)) {
585 wdev->conn->params.ie = wdev->conn->ie;
587 if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
588 wdev->conn->auto_auth = true;
589 /* start with open system ... should mostly work */
590 wdev->conn->params.auth_type =
591 NL80211_AUTHTYPE_OPEN_SYSTEM;
593 wdev->conn->auto_auth = false;
596 wdev->conn->params.ssid = wdev->u.client.ssid;
597 wdev->conn->params.ssid_len = wdev->u.client.ssid_len;
599 /* see if we have the bss already */
600 bss = cfg80211_get_conn_bss(wdev);
603 memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
604 wdev->conn->prev_bssid_valid = true;
607 /* we're good if we have a matching bss struct */
609 enum nl80211_timeout_reason treason;
611 err = cfg80211_conn_do_work(wdev, &treason);
612 cfg80211_put_bss(wdev->wiphy, bss);
614 /* otherwise we'll need to scan for the AP first */
615 err = cfg80211_conn_scan(wdev);
618 * If we can't scan right now, then we need to scan again
619 * after the current scan finished, since the parameters
620 * changed (unless we find a good AP anyway).
624 wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
629 cfg80211_sme_free(wdev);
634 static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason)
636 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
642 if (!rdev->ops->deauth)
645 if (wdev->conn->state == CFG80211_CONN_SCANNING ||
646 wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) {
651 /* wdev->conn->params.bssid must be set if > SCANNING */
652 err = cfg80211_mlme_deauth(rdev, wdev->netdev,
653 wdev->conn->params.bssid,
654 NULL, 0, reason, false);
656 cfg80211_sme_free(wdev);
661 * code shared for in-device and software SME
664 static bool cfg80211_is_all_idle(void)
666 struct cfg80211_registered_device *rdev;
667 struct wireless_dev *wdev;
668 bool is_all_idle = true;
671 * All devices must be idle as otherwise if you are actively
672 * scanning some new beacon hints could be learned and would
673 * count as new regulatory hints.
674 * Also if there is any other active beaconing interface we
675 * need not issue a disconnect hint and reset any info such
676 * as chan dfs state, etc.
678 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
679 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
681 if (wdev->conn || wdev->connected ||
682 cfg80211_beaconing_iface_active(wdev))
691 static void disconnect_work(struct work_struct *work)
694 if (cfg80211_is_all_idle())
695 regulatory_hint_disconnect();
699 DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
702 cfg80211_connect_result_release_bsses(struct wireless_dev *wdev,
703 struct cfg80211_connect_resp_params *cr)
707 for_each_valid_link(cr, link) {
708 if (!cr->links[link].bss)
710 cfg80211_unhold_bss(bss_from_pub(cr->links[link].bss));
711 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
716 * API calls for drivers implementing connect/disconnect and
720 /* This method must consume bss one way or another */
721 void __cfg80211_connect_result(struct net_device *dev,
722 struct cfg80211_connect_resp_params *cr,
725 struct wireless_dev *wdev = dev->ieee80211_ptr;
726 const struct element *country_elem = NULL;
727 const u8 *country_data;
729 #ifdef CONFIG_CFG80211_WEXT
730 union iwreq_data wrqu;
733 const u8 *connected_addr;
734 bool bss_not_found = false;
736 ASSERT_WDEV_LOCK(wdev);
738 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
739 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
742 if (cr->valid_links) {
743 if (WARN_ON(!cr->ap_mld_addr))
746 for_each_valid_link(cr, link) {
747 if (WARN_ON(!cr->links[link].addr))
751 if (WARN_ON(wdev->connect_keys))
755 wdev->unprot_beacon_reported = 0;
756 nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr,
758 connected_addr = cr->valid_links ? cr->ap_mld_addr : cr->links[0].bssid;
760 #ifdef CONFIG_CFG80211_WEXT
761 if (wextev && !cr->valid_links) {
762 if (cr->req_ie && cr->status == WLAN_STATUS_SUCCESS) {
763 memset(&wrqu, 0, sizeof(wrqu));
764 wrqu.data.length = cr->req_ie_len;
765 wireless_send_event(dev, IWEVASSOCREQIE, &wrqu,
769 if (cr->resp_ie && cr->status == WLAN_STATUS_SUCCESS) {
770 memset(&wrqu, 0, sizeof(wrqu));
771 wrqu.data.length = cr->resp_ie_len;
772 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu,
776 memset(&wrqu, 0, sizeof(wrqu));
777 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
778 if (connected_addr && cr->status == WLAN_STATUS_SUCCESS) {
779 memcpy(wrqu.ap_addr.sa_data, connected_addr, ETH_ALEN);
780 memcpy(wdev->wext.prev_bssid, connected_addr, ETH_ALEN);
781 wdev->wext.prev_bssid_valid = true;
783 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
787 if (cr->status == WLAN_STATUS_SUCCESS) {
788 if (!wiphy_to_rdev(wdev->wiphy)->ops->connect) {
789 for_each_valid_link(cr, link) {
790 if (WARN_ON_ONCE(!cr->links[link].bss))
795 for_each_valid_link(cr, link) {
796 if (cr->links[link].bss)
799 cr->links[link].bss =
800 cfg80211_get_bss(wdev->wiphy, NULL,
801 cr->links[link].bssid,
803 wdev->u.client.ssid_len,
805 IEEE80211_PRIVACY_ANY);
806 if (!cr->links[link].bss) {
807 bss_not_found = true;
810 cfg80211_hold_bss(bss_from_pub(cr->links[link].bss));
814 cfg80211_wdev_release_bsses(wdev);
816 if (cr->status != WLAN_STATUS_SUCCESS) {
817 kfree_sensitive(wdev->connect_keys);
818 wdev->connect_keys = NULL;
819 wdev->u.client.ssid_len = 0;
820 wdev->conn_owner_nlportid = 0;
821 cfg80211_connect_result_release_bsses(wdev, cr);
822 cfg80211_sme_free(wdev);
826 if (WARN_ON(bss_not_found)) {
827 cfg80211_connect_result_release_bsses(wdev, cr);
831 memset(wdev->links, 0, sizeof(wdev->links));
832 wdev->valid_links = cr->valid_links;
833 for_each_valid_link(cr, link)
834 wdev->links[link].client.current_bss =
835 bss_from_pub(cr->links[link].bss);
836 wdev->connected = true;
837 ether_addr_copy(wdev->u.client.connected_addr, connected_addr);
838 if (cr->valid_links) {
839 for_each_valid_link(cr, link)
840 memcpy(wdev->links[link].addr, cr->links[link].addr,
844 if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP))
845 cfg80211_upload_connect_keys(wdev);
848 for_each_valid_link(cr, link) {
850 ieee80211_bss_get_elem(cr->links[link].bss,
860 country_datalen = country_elem->datalen;
861 country_data = kmemdup(country_elem->data, country_datalen, GFP_ATOMIC);
867 regulatory_hint_country_ie(wdev->wiphy,
868 cr->links[link].bss->channel->band,
869 country_data, country_datalen);
874 for_each_valid_link(cr, link)
875 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
878 static void cfg80211_update_link_bss(struct wireless_dev *wdev,
879 struct cfg80211_bss **bss)
881 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
882 struct cfg80211_internal_bss *ibss;
887 ibss = bss_from_pub(*bss);
888 if (list_empty(&ibss->list)) {
889 struct cfg80211_bss *found = NULL, *tmp = *bss;
891 found = cfg80211_get_bss(wdev->wiphy, NULL,
894 wdev->u.client.ssid_len,
896 IEEE80211_PRIVACY_ANY);
898 /* The same BSS is already updated so use it
899 * instead, as it has latest info.
903 /* Update with BSS provided by driver, it will
904 * be freshly added and ref cnted, we can free
907 * signal_valid can be false, as we are not
908 * expecting the BSS to be found.
910 * keep the old timestamp to avoid confusion
912 cfg80211_bss_update(rdev, ibss, false,
916 cfg80211_put_bss(wdev->wiphy, tmp);
920 /* Consumes bss object(s) one way or another */
921 void cfg80211_connect_done(struct net_device *dev,
922 struct cfg80211_connect_resp_params *params,
925 struct wireless_dev *wdev = dev->ieee80211_ptr;
926 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
927 struct cfg80211_event *ev;
930 size_t link_info_size = 0;
933 for_each_valid_link(params, link) {
934 cfg80211_update_link_bss(wdev, ¶ms->links[link].bss);
935 link_info_size += params->links[link].bssid ? ETH_ALEN : 0;
936 link_info_size += params->links[link].addr ? ETH_ALEN : 0;
939 ev = kzalloc(sizeof(*ev) + (params->ap_mld_addr ? ETH_ALEN : 0) +
940 params->req_ie_len + params->resp_ie_len +
941 params->fils.kek_len + params->fils.pmk_len +
942 (params->fils.pmkid ? WLAN_PMKID_LEN : 0) + link_info_size,
946 for_each_valid_link(params, link)
947 cfg80211_put_bss(wdev->wiphy,
948 params->links[link].bss);
952 ev->type = EVENT_CONNECT_RESULT;
953 next = ((u8 *)ev) + sizeof(*ev);
954 if (params->ap_mld_addr) {
955 ev->cr.ap_mld_addr = next;
956 memcpy((void *)ev->cr.ap_mld_addr, params->ap_mld_addr,
960 if (params->req_ie_len) {
961 ev->cr.req_ie = next;
962 ev->cr.req_ie_len = params->req_ie_len;
963 memcpy((void *)ev->cr.req_ie, params->req_ie,
965 next += params->req_ie_len;
967 if (params->resp_ie_len) {
968 ev->cr.resp_ie = next;
969 ev->cr.resp_ie_len = params->resp_ie_len;
970 memcpy((void *)ev->cr.resp_ie, params->resp_ie,
971 params->resp_ie_len);
972 next += params->resp_ie_len;
974 if (params->fils.kek_len) {
975 ev->cr.fils.kek = next;
976 ev->cr.fils.kek_len = params->fils.kek_len;
977 memcpy((void *)ev->cr.fils.kek, params->fils.kek,
978 params->fils.kek_len);
979 next += params->fils.kek_len;
981 if (params->fils.pmk_len) {
982 ev->cr.fils.pmk = next;
983 ev->cr.fils.pmk_len = params->fils.pmk_len;
984 memcpy((void *)ev->cr.fils.pmk, params->fils.pmk,
985 params->fils.pmk_len);
986 next += params->fils.pmk_len;
988 if (params->fils.pmkid) {
989 ev->cr.fils.pmkid = next;
990 memcpy((void *)ev->cr.fils.pmkid, params->fils.pmkid,
992 next += WLAN_PMKID_LEN;
994 ev->cr.fils.update_erp_next_seq_num = params->fils.update_erp_next_seq_num;
995 if (params->fils.update_erp_next_seq_num)
996 ev->cr.fils.erp_next_seq_num = params->fils.erp_next_seq_num;
997 ev->cr.valid_links = params->valid_links;
998 for_each_valid_link(params, link) {
999 if (params->links[link].bss)
1001 bss_from_pub(params->links[link].bss));
1002 ev->cr.links[link].bss = params->links[link].bss;
1004 if (params->links[link].addr) {
1005 ev->cr.links[link].addr = next;
1006 memcpy((void *)ev->cr.links[link].addr,
1007 params->links[link].addr,
1011 if (params->links[link].bssid) {
1012 ev->cr.links[link].bssid = next;
1013 memcpy((void *)ev->cr.links[link].bssid,
1014 params->links[link].bssid,
1019 ev->cr.status = params->status;
1020 ev->cr.timeout_reason = params->timeout_reason;
1022 spin_lock_irqsave(&wdev->event_lock, flags);
1023 list_add_tail(&ev->list, &wdev->event_list);
1024 spin_unlock_irqrestore(&wdev->event_lock, flags);
1025 queue_work(cfg80211_wq, &rdev->event_work);
1027 EXPORT_SYMBOL(cfg80211_connect_done);
1029 /* Consumes bss object one way or another */
1030 void __cfg80211_roamed(struct wireless_dev *wdev,
1031 struct cfg80211_roam_info *info)
1033 #ifdef CONFIG_CFG80211_WEXT
1034 union iwreq_data wrqu;
1037 const u8 *connected_addr;
1039 ASSERT_WDEV_LOCK(wdev);
1041 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1042 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1045 if (WARN_ON(!wdev->connected))
1048 if (info->valid_links) {
1049 if (WARN_ON(!info->ap_mld_addr))
1052 for_each_valid_link(info, link) {
1053 if (WARN_ON(!info->links[link].addr))
1058 cfg80211_wdev_release_bsses(wdev);
1060 for_each_valid_link(info, link) {
1061 if (WARN_ON(!info->links[link].bss))
1065 memset(wdev->links, 0, sizeof(wdev->links));
1066 wdev->valid_links = info->valid_links;
1067 for_each_valid_link(info, link) {
1068 cfg80211_hold_bss(bss_from_pub(info->links[link].bss));
1069 wdev->links[link].client.current_bss =
1070 bss_from_pub(info->links[link].bss);
1073 connected_addr = info->valid_links ?
1075 info->links[0].bss->bssid;
1076 ether_addr_copy(wdev->u.client.connected_addr, connected_addr);
1077 if (info->valid_links) {
1078 for_each_valid_link(info, link)
1079 memcpy(wdev->links[link].addr, info->links[link].addr,
1082 wdev->unprot_beacon_reported = 0;
1083 nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy),
1084 wdev->netdev, info, GFP_KERNEL);
1086 #ifdef CONFIG_CFG80211_WEXT
1087 if (!info->valid_links) {
1089 memset(&wrqu, 0, sizeof(wrqu));
1090 wrqu.data.length = info->req_ie_len;
1091 wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
1092 &wrqu, info->req_ie);
1095 if (info->resp_ie) {
1096 memset(&wrqu, 0, sizeof(wrqu));
1097 wrqu.data.length = info->resp_ie_len;
1098 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
1099 &wrqu, info->resp_ie);
1102 memset(&wrqu, 0, sizeof(wrqu));
1103 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1104 memcpy(wrqu.ap_addr.sa_data, connected_addr, ETH_ALEN);
1105 memcpy(wdev->wext.prev_bssid, connected_addr, ETH_ALEN);
1106 wdev->wext.prev_bssid_valid = true;
1107 wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
1113 for_each_valid_link(info, link)
1114 cfg80211_put_bss(wdev->wiphy, info->links[link].bss);
1117 /* Consumes info->links.bss object(s) one way or another */
1118 void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
1121 struct wireless_dev *wdev = dev->ieee80211_ptr;
1122 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1123 struct cfg80211_event *ev;
1124 unsigned long flags;
1127 size_t link_info_size = 0;
1128 bool bss_not_found = false;
1130 for_each_valid_link(info, link) {
1131 link_info_size += info->links[link].addr ? ETH_ALEN : 0;
1132 link_info_size += info->links[link].bssid ? ETH_ALEN : 0;
1134 if (info->links[link].bss)
1137 info->links[link].bss =
1138 cfg80211_get_bss(wdev->wiphy,
1139 info->links[link].channel,
1140 info->links[link].bssid,
1141 wdev->u.client.ssid,
1142 wdev->u.client.ssid_len,
1143 wdev->conn_bss_type,
1144 IEEE80211_PRIVACY_ANY);
1146 if (!info->links[link].bss) {
1147 bss_not_found = true;
1152 if (WARN_ON(bss_not_found))
1155 ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len +
1156 info->fils.kek_len + info->fils.pmk_len +
1157 (info->fils.pmkid ? WLAN_PMKID_LEN : 0) +
1158 (info->ap_mld_addr ? ETH_ALEN : 0) + link_info_size, gfp);
1162 ev->type = EVENT_ROAMED;
1163 next = ((u8 *)ev) + sizeof(*ev);
1164 if (info->req_ie_len) {
1165 ev->rm.req_ie = next;
1166 ev->rm.req_ie_len = info->req_ie_len;
1167 memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len);
1168 next += info->req_ie_len;
1170 if (info->resp_ie_len) {
1171 ev->rm.resp_ie = next;
1172 ev->rm.resp_ie_len = info->resp_ie_len;
1173 memcpy((void *)ev->rm.resp_ie, info->resp_ie,
1175 next += info->resp_ie_len;
1177 if (info->fils.kek_len) {
1178 ev->rm.fils.kek = next;
1179 ev->rm.fils.kek_len = info->fils.kek_len;
1180 memcpy((void *)ev->rm.fils.kek, info->fils.kek,
1181 info->fils.kek_len);
1182 next += info->fils.kek_len;
1184 if (info->fils.pmk_len) {
1185 ev->rm.fils.pmk = next;
1186 ev->rm.fils.pmk_len = info->fils.pmk_len;
1187 memcpy((void *)ev->rm.fils.pmk, info->fils.pmk,
1188 info->fils.pmk_len);
1189 next += info->fils.pmk_len;
1191 if (info->fils.pmkid) {
1192 ev->rm.fils.pmkid = next;
1193 memcpy((void *)ev->rm.fils.pmkid, info->fils.pmkid,
1195 next += WLAN_PMKID_LEN;
1197 ev->rm.fils.update_erp_next_seq_num = info->fils.update_erp_next_seq_num;
1198 if (info->fils.update_erp_next_seq_num)
1199 ev->rm.fils.erp_next_seq_num = info->fils.erp_next_seq_num;
1200 if (info->ap_mld_addr) {
1201 ev->rm.ap_mld_addr = next;
1202 memcpy((void *)ev->rm.ap_mld_addr, info->ap_mld_addr,
1206 ev->rm.valid_links = info->valid_links;
1207 for_each_valid_link(info, link) {
1208 ev->rm.links[link].bss = info->links[link].bss;
1210 if (info->links[link].addr) {
1211 ev->rm.links[link].addr = next;
1212 memcpy((void *)ev->rm.links[link].addr,
1213 info->links[link].addr,
1218 if (info->links[link].bssid) {
1219 ev->rm.links[link].bssid = next;
1220 memcpy((void *)ev->rm.links[link].bssid,
1221 info->links[link].bssid,
1227 spin_lock_irqsave(&wdev->event_lock, flags);
1228 list_add_tail(&ev->list, &wdev->event_list);
1229 spin_unlock_irqrestore(&wdev->event_lock, flags);
1230 queue_work(cfg80211_wq, &rdev->event_work);
1234 for_each_valid_link(info, link)
1235 cfg80211_put_bss(wdev->wiphy, info->links[link].bss);
1238 EXPORT_SYMBOL(cfg80211_roamed);
1240 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid)
1242 ASSERT_WDEV_LOCK(wdev);
1244 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1245 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1248 if (WARN_ON(!wdev->connected) ||
1249 WARN_ON(!ether_addr_equal(wdev->u.client.connected_addr, bssid)))
1252 nl80211_send_port_authorized(wiphy_to_rdev(wdev->wiphy), wdev->netdev,
1256 void cfg80211_port_authorized(struct net_device *dev, const u8 *bssid,
1259 struct wireless_dev *wdev = dev->ieee80211_ptr;
1260 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1261 struct cfg80211_event *ev;
1262 unsigned long flags;
1264 if (WARN_ON(!bssid))
1267 ev = kzalloc(sizeof(*ev), gfp);
1271 ev->type = EVENT_PORT_AUTHORIZED;
1272 memcpy(ev->pa.bssid, bssid, ETH_ALEN);
1275 * Use the wdev event list so that if there are pending
1276 * connected/roamed events, they will be reported first.
1278 spin_lock_irqsave(&wdev->event_lock, flags);
1279 list_add_tail(&ev->list, &wdev->event_list);
1280 spin_unlock_irqrestore(&wdev->event_lock, flags);
1281 queue_work(cfg80211_wq, &rdev->event_work);
1283 EXPORT_SYMBOL(cfg80211_port_authorized);
1285 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
1286 size_t ie_len, u16 reason, bool from_ap)
1288 struct wireless_dev *wdev = dev->ieee80211_ptr;
1289 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1291 #ifdef CONFIG_CFG80211_WEXT
1292 union iwreq_data wrqu;
1295 ASSERT_WDEV_LOCK(wdev);
1297 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1298 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1301 cfg80211_wdev_release_bsses(wdev);
1302 wdev->connected = false;
1303 wdev->u.client.ssid_len = 0;
1304 wdev->conn_owner_nlportid = 0;
1305 kfree_sensitive(wdev->connect_keys);
1306 wdev->connect_keys = NULL;
1308 nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
1310 /* stop critical protocol if supported */
1311 if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) {
1312 rdev->crit_proto_nlportid = 0;
1313 rdev_crit_proto_stop(rdev, wdev);
1317 * Delete all the keys ... pairwise keys can't really
1318 * exist any more anyway, but default keys might.
1320 if (rdev->ops->del_key) {
1321 int max_key_idx = 5;
1323 if (wiphy_ext_feature_isset(
1325 NL80211_EXT_FEATURE_BEACON_PROTECTION) ||
1326 wiphy_ext_feature_isset(
1328 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT))
1330 for (i = 0; i <= max_key_idx; i++)
1331 rdev_del_key(rdev, dev, -1, i, false, NULL);
1334 rdev_set_qos_map(rdev, dev, NULL);
1336 #ifdef CONFIG_CFG80211_WEXT
1337 memset(&wrqu, 0, sizeof(wrqu));
1338 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1339 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1340 wdev->wext.connect.ssid_len = 0;
1343 schedule_work(&cfg80211_disconnect_work);
1346 void cfg80211_disconnected(struct net_device *dev, u16 reason,
1347 const u8 *ie, size_t ie_len,
1348 bool locally_generated, gfp_t gfp)
1350 struct wireless_dev *wdev = dev->ieee80211_ptr;
1351 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1352 struct cfg80211_event *ev;
1353 unsigned long flags;
1355 ev = kzalloc(sizeof(*ev) + ie_len, gfp);
1359 ev->type = EVENT_DISCONNECTED;
1360 ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
1361 ev->dc.ie_len = ie_len;
1362 memcpy((void *)ev->dc.ie, ie, ie_len);
1363 ev->dc.reason = reason;
1364 ev->dc.locally_generated = locally_generated;
1366 spin_lock_irqsave(&wdev->event_lock, flags);
1367 list_add_tail(&ev->list, &wdev->event_list);
1368 spin_unlock_irqrestore(&wdev->event_lock, flags);
1369 queue_work(cfg80211_wq, &rdev->event_work);
1371 EXPORT_SYMBOL(cfg80211_disconnected);
1374 * API calls for nl80211/wext compatibility code
1376 int cfg80211_connect(struct cfg80211_registered_device *rdev,
1377 struct net_device *dev,
1378 struct cfg80211_connect_params *connect,
1379 struct cfg80211_cached_keys *connkeys,
1380 const u8 *prev_bssid)
1382 struct wireless_dev *wdev = dev->ieee80211_ptr;
1385 ASSERT_WDEV_LOCK(wdev);
1388 * If we have an ssid_len, we're trying to connect or are
1389 * already connected, so reject a new SSID unless it's the
1390 * same (which is the case for re-association.)
1392 if (wdev->u.client.ssid_len &&
1393 (wdev->u.client.ssid_len != connect->ssid_len ||
1394 memcmp(wdev->u.client.ssid, connect->ssid, wdev->u.client.ssid_len)))
1398 * If connected, reject (re-)association unless prev_bssid
1399 * matches the current BSSID.
1401 if (wdev->connected) {
1404 if (!ether_addr_equal(prev_bssid,
1405 wdev->u.client.connected_addr))
1410 * Reject if we're in the process of connecting with WEP,
1411 * this case isn't very interesting and trying to handle
1412 * it would make the code much more complex.
1414 if (wdev->connect_keys)
1415 return -EINPROGRESS;
1417 cfg80211_oper_and_ht_capa(&connect->ht_capa_mask,
1418 rdev->wiphy.ht_capa_mod_mask);
1419 cfg80211_oper_and_vht_capa(&connect->vht_capa_mask,
1420 rdev->wiphy.vht_capa_mod_mask);
1422 if (connkeys && connkeys->def >= 0) {
1426 idx = connkeys->def;
1427 cipher = connkeys->params[idx].cipher;
1428 /* If given a WEP key we may need it for shared key auth */
1429 if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
1430 cipher == WLAN_CIPHER_SUITE_WEP104) {
1431 connect->key_idx = idx;
1432 connect->key = connkeys->params[idx].key;
1433 connect->key_len = connkeys->params[idx].key_len;
1436 * If ciphers are not set (e.g. when going through
1437 * iwconfig), we have to set them appropriately here.
1439 if (connect->crypto.cipher_group == 0)
1440 connect->crypto.cipher_group = cipher;
1442 if (connect->crypto.n_ciphers_pairwise == 0) {
1443 connect->crypto.n_ciphers_pairwise = 1;
1444 connect->crypto.ciphers_pairwise[0] = cipher;
1448 connect->crypto.wep_keys = connkeys->params;
1449 connect->crypto.wep_tx_key = connkeys->def;
1451 if (WARN_ON(connkeys))
1455 wdev->connect_keys = connkeys;
1456 memcpy(wdev->u.client.ssid, connect->ssid, connect->ssid_len);
1457 wdev->u.client.ssid_len = connect->ssid_len;
1459 wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS :
1460 IEEE80211_BSS_TYPE_ESS;
1462 if (!rdev->ops->connect)
1463 err = cfg80211_sme_connect(wdev, connect, prev_bssid);
1465 err = rdev_connect(rdev, dev, connect);
1468 wdev->connect_keys = NULL;
1470 * This could be reassoc getting refused, don't clear
1471 * ssid_len in that case.
1473 if (!wdev->connected)
1474 wdev->u.client.ssid_len = 0;
1481 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
1482 struct net_device *dev, u16 reason, bool wextev)
1484 struct wireless_dev *wdev = dev->ieee80211_ptr;
1487 ASSERT_WDEV_LOCK(wdev);
1489 kfree_sensitive(wdev->connect_keys);
1490 wdev->connect_keys = NULL;
1492 wdev->conn_owner_nlportid = 0;
1495 err = cfg80211_sme_disconnect(wdev, reason);
1496 else if (!rdev->ops->disconnect)
1497 cfg80211_mlme_down(rdev, dev);
1498 else if (wdev->u.client.ssid_len)
1499 err = rdev_disconnect(rdev, dev, reason);
1502 * Clear ssid_len unless we actually were fully connected,
1503 * in which case cfg80211_disconnected() will take care of
1506 if (!wdev->connected)
1507 wdev->u.client.ssid_len = 0;
1513 * Used to clean up after the connection / connection attempt owner socket
1516 void cfg80211_autodisconnect_wk(struct work_struct *work)
1518 struct wireless_dev *wdev =
1519 container_of(work, struct wireless_dev, disconnect_wk);
1520 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1524 if (wdev->conn_owner_nlportid) {
1525 switch (wdev->iftype) {
1526 case NL80211_IFTYPE_ADHOC:
1527 __cfg80211_leave_ibss(rdev, wdev->netdev, false);
1529 case NL80211_IFTYPE_AP:
1530 case NL80211_IFTYPE_P2P_GO:
1531 __cfg80211_stop_ap(rdev, wdev->netdev, -1, false);
1533 case NL80211_IFTYPE_MESH_POINT:
1534 __cfg80211_leave_mesh(rdev, wdev->netdev);
1536 case NL80211_IFTYPE_STATION:
1537 case NL80211_IFTYPE_P2P_CLIENT:
1539 * Use disconnect_bssid if still connecting and
1540 * ops->disconnect not implemented. Otherwise we can
1541 * use cfg80211_disconnect.
1543 if (rdev->ops->disconnect || wdev->connected)
1544 cfg80211_disconnect(rdev, wdev->netdev,
1545 WLAN_REASON_DEAUTH_LEAVING,
1548 cfg80211_mlme_deauth(rdev, wdev->netdev,
1549 wdev->disconnect_bssid,
1551 WLAN_REASON_DEAUTH_LEAVING,