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 <linux/wireless.h>
12 #include <net/iw_handler.h>
13 #include <net/cfg80211.h>
14 #include <net/rtnetlink.h>
18 struct cfg80211_conn {
19 struct cfg80211_connect_params params;
20 /* these are sub-states of the _CONNECTING sme_state */
23 CFG80211_CONN_SCANNING,
24 CFG80211_CONN_SCAN_AGAIN,
25 CFG80211_CONN_AUTHENTICATE_NEXT,
26 CFG80211_CONN_AUTHENTICATING,
27 CFG80211_CONN_ASSOCIATE_NEXT,
28 CFG80211_CONN_ASSOCIATING,
30 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
33 bool auto_auth, prev_bssid_valid;
37 static int cfg80211_conn_scan(struct wireless_dev *wdev)
39 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
40 struct cfg80211_scan_request *request;
44 ASSERT_RDEV_LOCK(rdev);
45 ASSERT_WDEV_LOCK(wdev);
50 if (wdev->conn->params.channel) {
53 enum ieee80211_band band;
56 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
57 if (!wdev->wiphy->bands[band])
59 n_channels += wdev->wiphy->bands[band]->n_channels;
62 request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) +
63 sizeof(request->channels[0]) * n_channels,
68 if (wdev->conn->params.channel)
69 request->channels[0] = wdev->conn->params.channel;
72 enum ieee80211_band band;
74 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
75 if (!wdev->wiphy->bands[band])
77 for (j = 0; j < wdev->wiphy->bands[band]->n_channels;
79 request->channels[i] =
80 &wdev->wiphy->bands[band]->channels[j];
83 request->n_channels = n_channels;
84 request->ssids = (void *)&request->channels[n_channels];
87 memcpy(request->ssids[0].ssid, wdev->conn->params.ssid,
88 wdev->conn->params.ssid_len);
89 request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
91 request->dev = wdev->netdev;
92 request->wiphy = &rdev->wiphy;
94 rdev->scan_req = request;
96 err = rdev->ops->scan(wdev->wiphy, wdev->netdev, request);
98 wdev->conn->state = CFG80211_CONN_SCANNING;
99 nl80211_send_scan_start(rdev, wdev->netdev);
100 dev_hold(wdev->netdev);
102 rdev->scan_req = NULL;
108 static int cfg80211_conn_do_work(struct wireless_dev *wdev)
110 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
111 struct cfg80211_connect_params *params;
112 const u8 *prev_bssid = NULL;
115 ASSERT_WDEV_LOCK(wdev);
120 params = &wdev->conn->params;
122 switch (wdev->conn->state) {
123 case CFG80211_CONN_SCAN_AGAIN:
124 return cfg80211_conn_scan(wdev);
125 case CFG80211_CONN_AUTHENTICATE_NEXT:
126 BUG_ON(!rdev->ops->auth);
127 wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
128 return __cfg80211_mlme_auth(rdev, wdev->netdev,
129 params->channel, params->auth_type,
131 params->ssid, params->ssid_len,
133 params->key, params->key_len,
135 case CFG80211_CONN_ASSOCIATE_NEXT:
136 BUG_ON(!rdev->ops->assoc);
137 wdev->conn->state = CFG80211_CONN_ASSOCIATING;
138 if (wdev->conn->prev_bssid_valid)
139 prev_bssid = wdev->conn->prev_bssid;
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)
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;
255 mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx);
257 __cfg80211_sme_scan_done(dev);
259 mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx);
262 void cfg80211_sme_rx_auth(struct net_device *dev,
263 const u8 *buf, size_t len)
265 struct wireless_dev *wdev = dev->ieee80211_ptr;
266 struct wiphy *wiphy = wdev->wiphy;
267 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
268 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
269 u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
271 ASSERT_WDEV_LOCK(wdev);
273 /* should only RX auth frames when connecting */
274 if (wdev->sme_state != CFG80211_SME_CONNECTING)
277 if (WARN_ON(!wdev->conn))
280 if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
281 wdev->conn->auto_auth &&
282 wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
283 /* select automatically between only open, shared, leap */
284 switch (wdev->conn->params.auth_type) {
285 case NL80211_AUTHTYPE_OPEN_SYSTEM:
286 if (wdev->connect_keys)
287 wdev->conn->params.auth_type =
288 NL80211_AUTHTYPE_SHARED_KEY;
290 wdev->conn->params.auth_type =
291 NL80211_AUTHTYPE_NETWORK_EAP;
293 case NL80211_AUTHTYPE_SHARED_KEY:
294 wdev->conn->params.auth_type =
295 NL80211_AUTHTYPE_NETWORK_EAP;
299 wdev->conn->params.auth_type =
300 NL80211_AUTHTYPE_OPEN_SYSTEM;
303 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
304 schedule_work(&rdev->conn_work);
305 } else if (status_code != WLAN_STATUS_SUCCESS) {
306 __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
307 status_code, false, NULL);
308 } else if (wdev->sme_state == CFG80211_SME_CONNECTING &&
309 wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
310 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
311 schedule_work(&rdev->conn_work);
315 bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev)
317 struct wiphy *wiphy = wdev->wiphy;
318 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
320 if (WARN_ON(!wdev->conn))
323 if (!wdev->conn->prev_bssid_valid)
327 * Some stupid APs don't accept reassoc, so we
328 * need to fall back to trying regular assoc.
330 wdev->conn->prev_bssid_valid = false;
331 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
332 schedule_work(&rdev->conn_work);
337 void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
338 const u8 *req_ie, size_t req_ie_len,
339 const u8 *resp_ie, size_t resp_ie_len,
340 u16 status, bool wextev,
341 struct cfg80211_bss *bss)
343 struct wireless_dev *wdev = dev->ieee80211_ptr;
345 #ifdef CONFIG_WIRELESS_EXT
346 union iwreq_data wrqu;
349 ASSERT_WDEV_LOCK(wdev);
351 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
354 if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING))
357 nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev,
358 bssid, req_ie, req_ie_len,
359 resp_ie, resp_ie_len,
362 #ifdef CONFIG_WIRELESS_EXT
364 if (req_ie && status == WLAN_STATUS_SUCCESS) {
365 memset(&wrqu, 0, sizeof(wrqu));
366 wrqu.data.length = req_ie_len;
367 wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie);
370 if (resp_ie && status == WLAN_STATUS_SUCCESS) {
371 memset(&wrqu, 0, sizeof(wrqu));
372 wrqu.data.length = resp_ie_len;
373 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie);
376 memset(&wrqu, 0, sizeof(wrqu));
377 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
378 if (bssid && status == WLAN_STATUS_SUCCESS) {
379 memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
380 memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN);
381 wdev->wext.prev_bssid_valid = true;
383 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
387 if (wdev->current_bss) {
388 cfg80211_unhold_bss(wdev->current_bss);
389 cfg80211_put_bss(&wdev->current_bss->pub);
390 wdev->current_bss = NULL;
394 wdev->conn->state = CFG80211_CONN_IDLE;
396 if (status != WLAN_STATUS_SUCCESS) {
397 wdev->sme_state = CFG80211_SME_IDLE;
399 kfree(wdev->conn->ie);
402 kfree(wdev->connect_keys);
403 wdev->connect_keys = NULL;
409 bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
410 wdev->ssid, wdev->ssid_len,
412 WLAN_CAPABILITY_ESS);
417 cfg80211_hold_bss(bss_from_pub(bss));
418 wdev->current_bss = bss_from_pub(bss);
420 wdev->sme_state = CFG80211_SME_CONNECTED;
421 cfg80211_upload_connect_keys(wdev);
423 country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
429 * ieee80211_bss_get_ie() ensures we can access:
430 * - country_ie + 2, the start of the country ie data, and
431 * - and country_ie[1] which is the IE length
433 regulatory_hint_11d(wdev->wiphy,
438 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
439 const u8 *req_ie, size_t req_ie_len,
440 const u8 *resp_ie, size_t resp_ie_len,
441 u16 status, gfp_t gfp)
443 struct wireless_dev *wdev = dev->ieee80211_ptr;
444 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
445 struct cfg80211_event *ev;
448 ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
452 ev->type = EVENT_CONNECT_RESULT;
453 memcpy(ev->cr.bssid, bssid, ETH_ALEN);
454 ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev);
455 ev->cr.req_ie_len = req_ie_len;
456 memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len);
457 ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len;
458 ev->cr.resp_ie_len = resp_ie_len;
459 memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len);
460 ev->cr.status = status;
462 spin_lock_irqsave(&wdev->event_lock, flags);
463 list_add_tail(&ev->list, &wdev->event_list);
464 spin_unlock_irqrestore(&wdev->event_lock, flags);
465 schedule_work(&rdev->event_work);
467 EXPORT_SYMBOL(cfg80211_connect_result);
469 void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
470 const u8 *req_ie, size_t req_ie_len,
471 const u8 *resp_ie, size_t resp_ie_len)
473 struct cfg80211_bss *bss;
474 #ifdef CONFIG_WIRELESS_EXT
475 union iwreq_data wrqu;
478 ASSERT_WDEV_LOCK(wdev);
480 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
483 if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED))
486 /* internal error -- how did we get to CONNECTED w/o BSS? */
487 if (WARN_ON(!wdev->current_bss)) {
491 cfg80211_unhold_bss(wdev->current_bss);
492 cfg80211_put_bss(&wdev->current_bss->pub);
493 wdev->current_bss = NULL;
495 bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
496 wdev->ssid, wdev->ssid_len,
497 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
502 cfg80211_hold_bss(bss_from_pub(bss));
503 wdev->current_bss = bss_from_pub(bss);
505 nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid,
506 req_ie, req_ie_len, resp_ie, resp_ie_len,
509 #ifdef CONFIG_WIRELESS_EXT
511 memset(&wrqu, 0, sizeof(wrqu));
512 wrqu.data.length = req_ie_len;
513 wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
518 memset(&wrqu, 0, sizeof(wrqu));
519 wrqu.data.length = resp_ie_len;
520 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
524 memset(&wrqu, 0, sizeof(wrqu));
525 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
526 memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
527 memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN);
528 wdev->wext.prev_bssid_valid = true;
529 wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
533 void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
534 const u8 *req_ie, size_t req_ie_len,
535 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
537 struct wireless_dev *wdev = dev->ieee80211_ptr;
538 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
539 struct cfg80211_event *ev;
542 ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
546 ev->type = EVENT_ROAMED;
547 memcpy(ev->rm.bssid, bssid, ETH_ALEN);
548 ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev);
549 ev->rm.req_ie_len = req_ie_len;
550 memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len);
551 ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len;
552 ev->rm.resp_ie_len = resp_ie_len;
553 memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len);
555 spin_lock_irqsave(&wdev->event_lock, flags);
556 list_add_tail(&ev->list, &wdev->event_list);
557 spin_unlock_irqrestore(&wdev->event_lock, flags);
558 schedule_work(&rdev->event_work);
560 EXPORT_SYMBOL(cfg80211_roamed);
562 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
563 size_t ie_len, u16 reason, bool from_ap)
565 struct wireless_dev *wdev = dev->ieee80211_ptr;
566 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
568 #ifdef CONFIG_WIRELESS_EXT
569 union iwreq_data wrqu;
572 ASSERT_WDEV_LOCK(wdev);
574 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
577 if (WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED))
580 if (wdev->current_bss) {
581 cfg80211_unhold_bss(wdev->current_bss);
582 cfg80211_put_bss(&wdev->current_bss->pub);
585 wdev->current_bss = NULL;
586 wdev->sme_state = CFG80211_SME_IDLE;
593 kfree(wdev->conn->ie);
594 wdev->conn->ie = NULL;
599 * If this disconnect was due to a disassoc, we
600 * we might still have an auth BSS around. For
601 * the userspace SME that's currently expected,
602 * but for the kernel SME (nl80211 CONNECT or
603 * wireless extensions) we want to clear up all
606 for (i = 0; i < MAX_AUTH_BSSES; i++) {
607 if (!wdev->auth_bsses[i])
609 bssid = wdev->auth_bsses[i]->pub.bssid;
610 ret = __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
611 WLAN_REASON_DEAUTH_LEAVING);
612 WARN(ret, "deauth failed: %d\n", ret);
616 nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
619 * Delete all the keys ... pairwise keys can't really
620 * exist any more anyway, but default keys might.
622 if (rdev->ops->del_key)
623 for (i = 0; i < 6; i++)
624 rdev->ops->del_key(wdev->wiphy, dev, i, NULL);
626 #ifdef CONFIG_WIRELESS_EXT
627 memset(&wrqu, 0, sizeof(wrqu));
628 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
629 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
633 void cfg80211_disconnected(struct net_device *dev, u16 reason,
634 u8 *ie, size_t ie_len, gfp_t gfp)
636 struct wireless_dev *wdev = dev->ieee80211_ptr;
637 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
638 struct cfg80211_event *ev;
641 ev = kzalloc(sizeof(*ev) + ie_len, gfp);
645 ev->type = EVENT_DISCONNECTED;
646 ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
647 ev->dc.ie_len = ie_len;
648 memcpy((void *)ev->dc.ie, ie, ie_len);
649 ev->dc.reason = reason;
651 spin_lock_irqsave(&wdev->event_lock, flags);
652 list_add_tail(&ev->list, &wdev->event_list);
653 spin_unlock_irqrestore(&wdev->event_lock, flags);
654 schedule_work(&rdev->event_work);
656 EXPORT_SYMBOL(cfg80211_disconnected);
658 int __cfg80211_connect(struct cfg80211_registered_device *rdev,
659 struct net_device *dev,
660 struct cfg80211_connect_params *connect,
661 struct cfg80211_cached_keys *connkeys,
662 const u8 *prev_bssid)
664 struct wireless_dev *wdev = dev->ieee80211_ptr;
665 struct ieee80211_channel *chan;
668 ASSERT_WDEV_LOCK(wdev);
670 if (wdev->sme_state != CFG80211_SME_IDLE)
673 chan = rdev_fixed_channel(rdev, wdev);
674 if (chan && chan != connect->channel)
677 if (WARN_ON(wdev->connect_keys)) {
678 kfree(wdev->connect_keys);
679 wdev->connect_keys = NULL;
682 if (connkeys && connkeys->def >= 0) {
687 cipher = connkeys->params[idx].cipher;
688 /* If given a WEP key we may need it for shared key auth */
689 if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
690 cipher == WLAN_CIPHER_SUITE_WEP104) {
691 connect->key_idx = idx;
692 connect->key = connkeys->params[idx].key;
693 connect->key_len = connkeys->params[idx].key_len;
696 * If ciphers are not set (e.g. when going through
697 * iwconfig), we have to set them appropriately here.
699 if (connect->crypto.cipher_group == 0)
700 connect->crypto.cipher_group = cipher;
702 if (connect->crypto.n_ciphers_pairwise == 0) {
703 connect->crypto.n_ciphers_pairwise = 1;
704 connect->crypto.ciphers_pairwise[0] = cipher;
709 if (!rdev->ops->connect) {
710 if (!rdev->ops->auth || !rdev->ops->assoc)
713 if (WARN_ON(wdev->conn))
716 wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
721 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
723 memcpy(&wdev->conn->params, connect, sizeof(*connect));
724 if (connect->bssid) {
725 wdev->conn->params.bssid = wdev->conn->bssid;
726 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
730 wdev->conn->ie = kmemdup(connect->ie, connect->ie_len,
732 wdev->conn->params.ie = wdev->conn->ie;
733 if (!wdev->conn->ie) {
740 if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
741 wdev->conn->auto_auth = true;
742 /* start with open system ... should mostly work */
743 wdev->conn->params.auth_type =
744 NL80211_AUTHTYPE_OPEN_SYSTEM;
746 wdev->conn->auto_auth = false;
749 memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
750 wdev->ssid_len = connect->ssid_len;
751 wdev->conn->params.ssid = wdev->ssid;
752 wdev->conn->params.ssid_len = connect->ssid_len;
754 /* don't care about result -- but fill bssid & channel */
755 if (!wdev->conn->params.bssid || !wdev->conn->params.channel)
756 cfg80211_get_conn_bss(wdev);
758 wdev->sme_state = CFG80211_SME_CONNECTING;
759 wdev->connect_keys = connkeys;
762 memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
763 wdev->conn->prev_bssid_valid = true;
766 /* we're good if we have both BSSID and channel */
767 if (wdev->conn->params.bssid && wdev->conn->params.channel) {
768 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
769 err = cfg80211_conn_do_work(wdev);
771 /* otherwise we'll need to scan for the AP first */
772 err = cfg80211_conn_scan(wdev);
774 * If we can't scan right now, then we need to scan again
775 * after the current scan finished, since the parameters
776 * changed (unless we find a good AP anyway).
780 wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
784 kfree(wdev->conn->ie);
787 wdev->sme_state = CFG80211_SME_IDLE;
788 wdev->connect_keys = NULL;
794 wdev->sme_state = CFG80211_SME_CONNECTING;
795 wdev->connect_keys = connkeys;
796 err = rdev->ops->connect(&rdev->wiphy, dev, connect);
798 wdev->connect_keys = NULL;
799 wdev->sme_state = CFG80211_SME_IDLE;
803 memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
804 wdev->ssid_len = connect->ssid_len;
810 int cfg80211_connect(struct cfg80211_registered_device *rdev,
811 struct net_device *dev,
812 struct cfg80211_connect_params *connect,
813 struct cfg80211_cached_keys *connkeys)
817 mutex_lock(&rdev->devlist_mtx);
818 wdev_lock(dev->ieee80211_ptr);
819 err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL);
820 wdev_unlock(dev->ieee80211_ptr);
821 mutex_unlock(&rdev->devlist_mtx);
826 int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
827 struct net_device *dev, u16 reason, bool wextev)
829 struct wireless_dev *wdev = dev->ieee80211_ptr;
832 ASSERT_WDEV_LOCK(wdev);
834 if (wdev->sme_state == CFG80211_SME_IDLE)
837 kfree(wdev->connect_keys);
838 wdev->connect_keys = NULL;
840 if (!rdev->ops->disconnect) {
841 if (!rdev->ops->deauth)
844 /* was it connected by userspace SME? */
846 cfg80211_mlme_down(rdev, dev);
850 if (wdev->sme_state == CFG80211_SME_CONNECTING &&
851 (wdev->conn->state == CFG80211_CONN_SCANNING ||
852 wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) {
853 wdev->sme_state = CFG80211_SME_IDLE;
854 kfree(wdev->conn->ie);
861 /* wdev->conn->params.bssid must be set if > SCANNING */
862 err = __cfg80211_mlme_deauth(rdev, dev,
863 wdev->conn->params.bssid,
868 err = rdev->ops->disconnect(&rdev->wiphy, dev, reason);
873 if (wdev->sme_state == CFG80211_SME_CONNECTED)
874 __cfg80211_disconnected(dev, NULL, 0, 0, false);
875 else if (wdev->sme_state == CFG80211_SME_CONNECTING)
876 __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0,
877 WLAN_STATUS_UNSPECIFIED_FAILURE,
883 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
884 struct net_device *dev,
885 u16 reason, bool wextev)
889 wdev_lock(dev->ieee80211_ptr);
890 err = __cfg80211_disconnect(rdev, dev, reason, wextev);
891 wdev_unlock(dev->ieee80211_ptr);
896 void cfg80211_sme_disassoc(struct net_device *dev, int idx)
898 struct wireless_dev *wdev = dev->ieee80211_ptr;
899 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
902 ASSERT_WDEV_LOCK(wdev);
907 if (wdev->conn->state == CFG80211_CONN_IDLE)
911 * Ok, so the association was made by this SME -- we don't
912 * want it any more so deauthenticate too.
915 if (!wdev->auth_bsses[idx])
918 memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN);
919 if (__cfg80211_mlme_deauth(rdev, dev, bssid,
920 NULL, 0, WLAN_REASON_DEAUTH_LEAVING)) {
921 /* whatever -- assume gone anyway */
922 cfg80211_unhold_bss(wdev->auth_bsses[idx]);
923 cfg80211_put_bss(&wdev->auth_bsses[idx]->pub);
924 wdev->auth_bsses[idx] = NULL;