2 * SME code for cfg80211's connect emulation.
4 * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright (C) 2009 Intel Corporation. All rights reserved.
8 #include <linux/etherdevice.h>
9 #include <linux/if_arp.h>
10 #include <linux/workqueue.h>
11 #include <net/cfg80211.h>
12 #include <net/rtnetlink.h>
15 struct cfg80211_conn {
16 struct cfg80211_connect_params params;
17 /* these are sub-states of the _CONNECTING sme_state */
20 CFG80211_CONN_SCANNING,
21 CFG80211_CONN_SCAN_AGAIN,
22 CFG80211_CONN_AUTHENTICATE_NEXT,
23 CFG80211_CONN_AUTHENTICATING,
24 CFG80211_CONN_ASSOCIATE_NEXT,
25 CFG80211_CONN_ASSOCIATING,
34 static int cfg80211_conn_scan(struct wireless_dev *wdev)
36 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
37 struct cfg80211_scan_request *request;
41 ASSERT_RDEV_LOCK(rdev);
42 ASSERT_WDEV_LOCK(wdev);
47 if (wdev->conn->params.channel) {
50 enum ieee80211_band band;
53 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
54 if (!wdev->wiphy->bands[band])
56 n_channels += wdev->wiphy->bands[band]->n_channels;
59 request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) +
60 sizeof(request->channels[0]) * n_channels,
65 request->channels = (void *)((char *)request + sizeof(*request));
66 if (wdev->conn->params.channel)
67 request->channels[0] = wdev->conn->params.channel;
70 enum ieee80211_band band;
72 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
73 if (!wdev->wiphy->bands[band])
75 for (j = 0; j < wdev->wiphy->bands[band]->n_channels;
77 request->channels[i] =
78 &wdev->wiphy->bands[band]->channels[j];
81 request->n_channels = n_channels;
82 request->ssids = (void *)(request->channels + n_channels);
85 memcpy(request->ssids[0].ssid, wdev->conn->params.ssid,
86 wdev->conn->params.ssid_len);
87 request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
89 request->ifidx = wdev->netdev->ifindex;
90 request->wiphy = &rdev->wiphy;
92 rdev->scan_req = request;
94 err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request);
96 wdev->conn->state = CFG80211_CONN_SCANNING;
97 nl80211_send_scan_start(rdev, wdev->netdev);
99 rdev->scan_req = NULL;
105 static int cfg80211_conn_do_work(struct wireless_dev *wdev)
107 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
108 struct cfg80211_connect_params *params;
111 ASSERT_WDEV_LOCK(wdev);
116 params = &wdev->conn->params;
118 switch (wdev->conn->state) {
119 case CFG80211_CONN_SCAN_AGAIN:
120 return cfg80211_conn_scan(wdev);
121 case CFG80211_CONN_AUTHENTICATE_NEXT:
122 BUG_ON(!rdev->ops->auth);
123 wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
124 return __cfg80211_mlme_auth(rdev, wdev->netdev,
125 params->channel, params->auth_type,
127 params->ssid, params->ssid_len,
129 params->key, params->key_len,
131 case CFG80211_CONN_ASSOCIATE_NEXT:
132 BUG_ON(!rdev->ops->assoc);
133 wdev->conn->state = CFG80211_CONN_ASSOCIATING;
135 * We could, later, implement roaming here and then actually
136 * set prev_bssid to non-NULL. But then we need to be aware
137 * that some APs don't like that -- so we'd need to retry
140 err = __cfg80211_mlme_assoc(rdev, wdev->netdev,
141 params->channel, params->bssid,
143 params->ssid, params->ssid_len,
144 params->ie, params->ie_len,
145 false, ¶ms->crypto);
147 __cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
149 WLAN_REASON_DEAUTH_LEAVING);
156 void cfg80211_conn_work(struct work_struct *work)
158 struct cfg80211_registered_device *rdev =
159 container_of(work, struct cfg80211_registered_device, conn_work);
160 struct wireless_dev *wdev;
163 cfg80211_lock_rdev(rdev);
164 mutex_lock(&rdev->devlist_mtx);
166 list_for_each_entry(wdev, &rdev->netdev_list, list) {
168 if (!netif_running(wdev->netdev)) {
172 if (wdev->sme_state != CFG80211_SME_CONNECTING) {
176 if (cfg80211_conn_do_work(wdev))
177 __cfg80211_connect_result(
179 wdev->conn->params.bssid,
181 WLAN_STATUS_UNSPECIFIED_FAILURE,
186 mutex_unlock(&rdev->devlist_mtx);
187 cfg80211_unlock_rdev(rdev);
191 static bool cfg80211_get_conn_bss(struct wireless_dev *wdev)
193 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
194 struct cfg80211_bss *bss;
195 u16 capa = WLAN_CAPABILITY_ESS;
197 ASSERT_WDEV_LOCK(wdev);
199 if (wdev->conn->params.privacy)
200 capa |= WLAN_CAPABILITY_PRIVACY;
202 bss = cfg80211_get_bss(wdev->wiphy, NULL, wdev->conn->params.bssid,
203 wdev->conn->params.ssid,
204 wdev->conn->params.ssid_len,
205 WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY,
210 memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN);
211 wdev->conn->params.bssid = wdev->conn->bssid;
212 wdev->conn->params.channel = bss->channel;
213 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
214 schedule_work(&rdev->conn_work);
216 cfg80211_put_bss(bss);
220 static void __cfg80211_sme_scan_done(struct net_device *dev)
222 struct wireless_dev *wdev = dev->ieee80211_ptr;
223 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
225 ASSERT_WDEV_LOCK(wdev);
227 if (wdev->sme_state != CFG80211_SME_CONNECTING)
230 if (WARN_ON(!wdev->conn))
233 if (wdev->conn->state != CFG80211_CONN_SCANNING &&
234 wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
237 if (!cfg80211_get_conn_bss(wdev)) {
239 if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)
240 schedule_work(&rdev->conn_work);
242 __cfg80211_connect_result(
244 wdev->conn->params.bssid,
246 WLAN_STATUS_UNSPECIFIED_FAILURE,
251 void cfg80211_sme_scan_done(struct net_device *dev)
253 struct wireless_dev *wdev = dev->ieee80211_ptr;
256 __cfg80211_sme_scan_done(dev);
260 void cfg80211_sme_rx_auth(struct net_device *dev,
261 const u8 *buf, size_t len)
263 struct wireless_dev *wdev = dev->ieee80211_ptr;
264 struct wiphy *wiphy = wdev->wiphy;
265 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
266 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
267 u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
269 ASSERT_WDEV_LOCK(wdev);
271 /* should only RX auth frames when connecting */
272 if (wdev->sme_state != CFG80211_SME_CONNECTING)
275 if (WARN_ON(!wdev->conn))
278 if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
279 wdev->conn->auto_auth &&
280 wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
281 /* select automatically between only open, shared, leap */
282 switch (wdev->conn->params.auth_type) {
283 case NL80211_AUTHTYPE_OPEN_SYSTEM:
284 if (wdev->connect_keys)
285 wdev->conn->params.auth_type =
286 NL80211_AUTHTYPE_SHARED_KEY;
288 wdev->conn->params.auth_type =
289 NL80211_AUTHTYPE_NETWORK_EAP;
291 case NL80211_AUTHTYPE_SHARED_KEY:
292 wdev->conn->params.auth_type =
293 NL80211_AUTHTYPE_NETWORK_EAP;
297 wdev->conn->params.auth_type =
298 NL80211_AUTHTYPE_OPEN_SYSTEM;
301 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
302 schedule_work(&rdev->conn_work);
303 } else if (status_code != WLAN_STATUS_SUCCESS) {
304 __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
306 } else if (wdev->sme_state == CFG80211_SME_CONNECTING &&
307 wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
308 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
309 schedule_work(&rdev->conn_work);
313 void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
314 const u8 *req_ie, size_t req_ie_len,
315 const u8 *resp_ie, size_t resp_ie_len,
316 u16 status, bool wextev)
318 struct wireless_dev *wdev = dev->ieee80211_ptr;
319 struct cfg80211_bss *bss;
320 #ifdef CONFIG_WIRELESS_EXT
321 union iwreq_data wrqu;
324 ASSERT_WDEV_LOCK(wdev);
326 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
329 if (wdev->sme_state == CFG80211_SME_CONNECTED)
330 nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), dev,
331 bssid, req_ie, req_ie_len,
332 resp_ie, resp_ie_len, GFP_KERNEL);
334 nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev,
335 bssid, req_ie, req_ie_len,
336 resp_ie, resp_ie_len,
339 #ifdef CONFIG_WIRELESS_EXT
341 if (req_ie && status == WLAN_STATUS_SUCCESS) {
342 memset(&wrqu, 0, sizeof(wrqu));
343 wrqu.data.length = req_ie_len;
344 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, req_ie);
347 if (resp_ie && status == WLAN_STATUS_SUCCESS) {
348 memset(&wrqu, 0, sizeof(wrqu));
349 wrqu.data.length = resp_ie_len;
350 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie);
353 memset(&wrqu, 0, sizeof(wrqu));
354 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
355 if (bssid && status == WLAN_STATUS_SUCCESS)
356 memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
357 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
361 if (status == WLAN_STATUS_SUCCESS &&
362 wdev->sme_state == CFG80211_SME_IDLE)
365 if (wdev->sme_state != CFG80211_SME_CONNECTING)
368 if (wdev->current_bss) {
369 cfg80211_unhold_bss(wdev->current_bss);
370 cfg80211_put_bss(&wdev->current_bss->pub);
371 wdev->current_bss = NULL;
375 wdev->conn->state = CFG80211_CONN_IDLE;
377 if (status != WLAN_STATUS_SUCCESS) {
378 wdev->sme_state = CFG80211_SME_IDLE;
381 kfree(wdev->connect_keys);
382 wdev->connect_keys = NULL;
386 bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
387 wdev->ssid, wdev->ssid_len,
389 WLAN_CAPABILITY_ESS);
394 cfg80211_hold_bss(bss_from_pub(bss));
395 wdev->current_bss = bss_from_pub(bss);
398 wdev->sme_state = CFG80211_SME_CONNECTED;
399 cfg80211_upload_connect_keys(wdev);
402 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
403 const u8 *req_ie, size_t req_ie_len,
404 const u8 *resp_ie, size_t resp_ie_len,
405 u16 status, gfp_t gfp)
407 struct wireless_dev *wdev = dev->ieee80211_ptr;
408 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
409 struct cfg80211_event *ev;
412 ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
416 ev->type = EVENT_CONNECT_RESULT;
417 memcpy(ev->cr.bssid, bssid, ETH_ALEN);
418 ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev);
419 ev->cr.req_ie_len = req_ie_len;
420 memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len);
421 ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len;
422 ev->cr.resp_ie_len = resp_ie_len;
423 memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len);
424 ev->cr.status = status;
426 spin_lock_irqsave(&wdev->event_lock, flags);
427 list_add_tail(&ev->list, &wdev->event_list);
428 spin_unlock_irqrestore(&wdev->event_lock, flags);
429 schedule_work(&rdev->event_work);
431 EXPORT_SYMBOL(cfg80211_connect_result);
433 void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
434 const u8 *req_ie, size_t req_ie_len,
435 const u8 *resp_ie, size_t resp_ie_len)
437 struct cfg80211_bss *bss;
438 #ifdef CONFIG_WIRELESS_EXT
439 union iwreq_data wrqu;
442 ASSERT_WDEV_LOCK(wdev);
444 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
447 if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED))
450 /* internal error -- how did we get to CONNECTED w/o BSS? */
451 if (WARN_ON(!wdev->current_bss)) {
455 cfg80211_unhold_bss(wdev->current_bss);
456 cfg80211_put_bss(&wdev->current_bss->pub);
457 wdev->current_bss = NULL;
459 bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
460 wdev->ssid, wdev->ssid_len,
461 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
466 cfg80211_hold_bss(bss_from_pub(bss));
467 wdev->current_bss = bss_from_pub(bss);
469 nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid,
470 req_ie, req_ie_len, resp_ie, resp_ie_len,
473 #ifdef CONFIG_WIRELESS_EXT
475 memset(&wrqu, 0, sizeof(wrqu));
476 wrqu.data.length = req_ie_len;
477 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
482 memset(&wrqu, 0, sizeof(wrqu));
483 wrqu.data.length = resp_ie_len;
484 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
488 memset(&wrqu, 0, sizeof(wrqu));
489 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
490 memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
491 wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
495 void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
496 const u8 *req_ie, size_t req_ie_len,
497 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
499 struct wireless_dev *wdev = dev->ieee80211_ptr;
500 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
501 struct cfg80211_event *ev;
504 ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
508 ev->type = EVENT_ROAMED;
509 memcpy(ev->rm.bssid, bssid, ETH_ALEN);
510 ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev);
511 ev->rm.req_ie_len = req_ie_len;
512 memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len);
513 ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len;
514 ev->rm.resp_ie_len = resp_ie_len;
515 memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len);
517 spin_lock_irqsave(&wdev->event_lock, flags);
518 list_add_tail(&ev->list, &wdev->event_list);
519 spin_unlock_irqrestore(&wdev->event_lock, flags);
520 schedule_work(&rdev->event_work);
522 EXPORT_SYMBOL(cfg80211_roamed);
524 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
525 size_t ie_len, u16 reason, bool from_ap)
527 struct wireless_dev *wdev = dev->ieee80211_ptr;
528 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
530 #ifdef CONFIG_WIRELESS_EXT
531 union iwreq_data wrqu;
534 ASSERT_WDEV_LOCK(wdev);
536 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
539 if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED))
542 if (wdev->current_bss) {
543 cfg80211_unhold_bss(wdev->current_bss);
544 cfg80211_put_bss(&wdev->current_bss->pub);
547 wdev->current_bss = NULL;
548 wdev->sme_state = CFG80211_SME_IDLE;
551 kfree(wdev->conn->ie);
552 wdev->conn->ie = NULL;
557 nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
560 * Delete all the keys ... pairwise keys can't really
561 * exist any more anyway, but default keys might.
563 if (rdev->ops->del_key)
564 for (i = 0; i < 6; i++)
565 rdev->ops->del_key(wdev->wiphy, dev, i, NULL);
567 #ifdef CONFIG_WIRELESS_EXT
568 memset(&wrqu, 0, sizeof(wrqu));
569 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
570 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
574 void cfg80211_disconnected(struct net_device *dev, u16 reason,
575 u8 *ie, size_t ie_len, gfp_t gfp)
577 struct wireless_dev *wdev = dev->ieee80211_ptr;
578 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
579 struct cfg80211_event *ev;
582 ev = kzalloc(sizeof(*ev) + ie_len, gfp);
586 ev->type = EVENT_DISCONNECTED;
587 ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
588 ev->dc.ie_len = ie_len;
589 memcpy((void *)ev->dc.ie, ie, ie_len);
590 ev->dc.reason = reason;
592 spin_lock_irqsave(&wdev->event_lock, flags);
593 list_add_tail(&ev->list, &wdev->event_list);
594 spin_unlock_irqrestore(&wdev->event_lock, flags);
595 schedule_work(&rdev->event_work);
597 EXPORT_SYMBOL(cfg80211_disconnected);
599 int __cfg80211_connect(struct cfg80211_registered_device *rdev,
600 struct net_device *dev,
601 struct cfg80211_connect_params *connect,
602 struct cfg80211_cached_keys *connkeys)
604 struct wireless_dev *wdev = dev->ieee80211_ptr;
607 ASSERT_WDEV_LOCK(wdev);
609 if (wdev->sme_state != CFG80211_SME_IDLE)
612 if (WARN_ON(wdev->connect_keys)) {
613 kfree(wdev->connect_keys);
614 wdev->connect_keys = NULL;
617 if (connkeys && connkeys->def >= 0) {
621 /* If given a WEP key we may need it for shared key auth */
622 if (connkeys->params[idx].cipher == WLAN_CIPHER_SUITE_WEP40 ||
623 connkeys->params[idx].cipher == WLAN_CIPHER_SUITE_WEP104) {
624 connect->key_idx = idx;
625 connect->key = connkeys->params[idx].key;
626 connect->key_len = connkeys->params[idx].key_len;
630 if (!rdev->ops->connect) {
631 if (!rdev->ops->auth || !rdev->ops->assoc)
634 if (WARN_ON(wdev->conn))
637 wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
642 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
644 memcpy(&wdev->conn->params, connect, sizeof(*connect));
645 if (connect->bssid) {
646 wdev->conn->params.bssid = wdev->conn->bssid;
647 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
651 wdev->conn->ie = kmemdup(connect->ie, connect->ie_len,
653 wdev->conn->params.ie = wdev->conn->ie;
654 if (!wdev->conn->ie) {
661 if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
662 wdev->conn->auto_auth = true;
663 /* start with open system ... should mostly work */
664 wdev->conn->params.auth_type =
665 NL80211_AUTHTYPE_OPEN_SYSTEM;
667 wdev->conn->auto_auth = false;
670 memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
671 wdev->ssid_len = connect->ssid_len;
672 wdev->conn->params.ssid = wdev->ssid;
673 wdev->conn->params.ssid_len = connect->ssid_len;
675 /* don't care about result -- but fill bssid & channel */
676 if (!wdev->conn->params.bssid || !wdev->conn->params.channel)
677 cfg80211_get_conn_bss(wdev);
679 wdev->sme_state = CFG80211_SME_CONNECTING;
680 wdev->connect_keys = connkeys;
682 /* we're good if we have both BSSID and channel */
683 if (wdev->conn->params.bssid && wdev->conn->params.channel) {
684 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
685 err = cfg80211_conn_do_work(wdev);
687 /* otherwise we'll need to scan for the AP first */
688 err = cfg80211_conn_scan(wdev);
690 * If we can't scan right now, then we need to scan again
691 * after the current scan finished, since the parameters
692 * changed (unless we find a good AP anyway).
696 wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
702 wdev->sme_state = CFG80211_SME_IDLE;
703 wdev->connect_keys = NULL;
708 wdev->sme_state = CFG80211_SME_CONNECTING;
709 wdev->connect_keys = connkeys;
710 err = rdev->ops->connect(&rdev->wiphy, dev, connect);
712 wdev->connect_keys = NULL;
713 wdev->sme_state = CFG80211_SME_IDLE;
717 memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
718 wdev->ssid_len = connect->ssid_len;
724 int cfg80211_connect(struct cfg80211_registered_device *rdev,
725 struct net_device *dev,
726 struct cfg80211_connect_params *connect,
727 struct cfg80211_cached_keys *connkeys)
731 wdev_lock(dev->ieee80211_ptr);
732 err = __cfg80211_connect(rdev, dev, connect, connkeys);
733 wdev_unlock(dev->ieee80211_ptr);
738 int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
739 struct net_device *dev, u16 reason, bool wextev)
741 struct wireless_dev *wdev = dev->ieee80211_ptr;
744 ASSERT_WDEV_LOCK(wdev);
746 if (wdev->sme_state == CFG80211_SME_IDLE)
749 kfree(wdev->connect_keys);
750 wdev->connect_keys = NULL;
752 if (!rdev->ops->disconnect) {
753 if (!rdev->ops->deauth)
756 /* was it connected by userspace SME? */
758 cfg80211_mlme_down(rdev, dev);
762 if (wdev->sme_state == CFG80211_SME_CONNECTING &&
763 (wdev->conn->state == CFG80211_CONN_SCANNING ||
764 wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) {
765 wdev->sme_state = CFG80211_SME_IDLE;
771 /* wdev->conn->params.bssid must be set if > SCANNING */
772 err = __cfg80211_mlme_deauth(rdev, dev,
773 wdev->conn->params.bssid,
778 err = rdev->ops->disconnect(&rdev->wiphy, dev, reason);
783 if (wdev->sme_state == CFG80211_SME_CONNECTED)
784 __cfg80211_disconnected(dev, NULL, 0, 0, false);
785 else if (wdev->sme_state == CFG80211_SME_CONNECTING)
786 __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0,
787 WLAN_STATUS_UNSPECIFIED_FAILURE,
793 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
794 struct net_device *dev,
795 u16 reason, bool wextev)
799 wdev_lock(dev->ieee80211_ptr);
800 err = __cfg80211_disconnect(rdev, dev, reason, wextev);
801 wdev_unlock(dev->ieee80211_ptr);
806 void cfg80211_sme_disassoc(struct net_device *dev, int idx)
808 struct wireless_dev *wdev = dev->ieee80211_ptr;
809 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
812 ASSERT_WDEV_LOCK(wdev);
817 if (wdev->conn->state == CFG80211_CONN_IDLE)
821 * Ok, so the association was made by this SME -- we don't
822 * want it any more so deauthenticate too.
825 if (!wdev->auth_bsses[idx])
828 memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN);
829 if (cfg80211_mlme_deauth(rdev, dev, bssid,
830 NULL, 0, WLAN_REASON_DEAUTH_LEAVING)) {
831 /* whatever -- assume gone anyway */
832 cfg80211_unhold_bss(wdev->auth_bsses[idx]);
833 cfg80211_put_bss(&wdev->auth_bsses[idx]->pub);
834 wdev->auth_bsses[idx] = NULL;