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 struct cfg80211_bss *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);
219 static void __cfg80211_sme_scan_done(struct net_device *dev)
221 struct wireless_dev *wdev = dev->ieee80211_ptr;
222 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
223 struct cfg80211_bss *bss;
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 bss = cfg80211_get_conn_bss(wdev);
239 cfg80211_put_bss(bss);
242 if (wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)
243 schedule_work(&rdev->conn_work);
245 __cfg80211_connect_result(
247 wdev->conn->params.bssid,
249 WLAN_STATUS_UNSPECIFIED_FAILURE,
254 void cfg80211_sme_scan_done(struct net_device *dev)
256 struct wireless_dev *wdev = dev->ieee80211_ptr;
258 mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx);
260 __cfg80211_sme_scan_done(dev);
262 mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx);
265 void cfg80211_sme_rx_auth(struct net_device *dev,
266 const u8 *buf, size_t len)
268 struct wireless_dev *wdev = dev->ieee80211_ptr;
269 struct wiphy *wiphy = wdev->wiphy;
270 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
271 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
272 u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
274 ASSERT_WDEV_LOCK(wdev);
276 /* should only RX auth frames when connecting */
277 if (wdev->sme_state != CFG80211_SME_CONNECTING)
280 if (WARN_ON(!wdev->conn))
283 if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
284 wdev->conn->auto_auth &&
285 wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
286 /* select automatically between only open, shared, leap */
287 switch (wdev->conn->params.auth_type) {
288 case NL80211_AUTHTYPE_OPEN_SYSTEM:
289 if (wdev->connect_keys)
290 wdev->conn->params.auth_type =
291 NL80211_AUTHTYPE_SHARED_KEY;
293 wdev->conn->params.auth_type =
294 NL80211_AUTHTYPE_NETWORK_EAP;
296 case NL80211_AUTHTYPE_SHARED_KEY:
297 wdev->conn->params.auth_type =
298 NL80211_AUTHTYPE_NETWORK_EAP;
302 wdev->conn->params.auth_type =
303 NL80211_AUTHTYPE_OPEN_SYSTEM;
306 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
307 schedule_work(&rdev->conn_work);
308 } else if (status_code != WLAN_STATUS_SUCCESS) {
309 __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
310 status_code, false, NULL);
311 } else if (wdev->sme_state == CFG80211_SME_CONNECTING &&
312 wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
313 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
314 schedule_work(&rdev->conn_work);
318 bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev)
320 struct wiphy *wiphy = wdev->wiphy;
321 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
323 if (WARN_ON(!wdev->conn))
326 if (!wdev->conn->prev_bssid_valid)
330 * Some stupid APs don't accept reassoc, so we
331 * need to fall back to trying regular assoc.
333 wdev->conn->prev_bssid_valid = false;
334 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
335 schedule_work(&rdev->conn_work);
340 void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
341 const u8 *req_ie, size_t req_ie_len,
342 const u8 *resp_ie, size_t resp_ie_len,
343 u16 status, bool wextev,
344 struct cfg80211_bss *bss)
346 struct wireless_dev *wdev = dev->ieee80211_ptr;
348 #ifdef CONFIG_WIRELESS_EXT
349 union iwreq_data wrqu;
352 ASSERT_WDEV_LOCK(wdev);
354 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
357 if (wdev->sme_state != CFG80211_SME_CONNECTING)
360 nl80211_send_connect_result(wiphy_to_dev(wdev->wiphy), dev,
361 bssid, req_ie, req_ie_len,
362 resp_ie, resp_ie_len,
365 #ifdef CONFIG_WIRELESS_EXT
367 if (req_ie && status == WLAN_STATUS_SUCCESS) {
368 memset(&wrqu, 0, sizeof(wrqu));
369 wrqu.data.length = req_ie_len;
370 wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, req_ie);
373 if (resp_ie && status == WLAN_STATUS_SUCCESS) {
374 memset(&wrqu, 0, sizeof(wrqu));
375 wrqu.data.length = resp_ie_len;
376 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, resp_ie);
379 memset(&wrqu, 0, sizeof(wrqu));
380 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
381 if (bssid && status == WLAN_STATUS_SUCCESS) {
382 memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
383 memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN);
384 wdev->wext.prev_bssid_valid = true;
386 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
390 if (wdev->current_bss) {
391 cfg80211_unhold_bss(wdev->current_bss);
392 cfg80211_put_bss(&wdev->current_bss->pub);
393 wdev->current_bss = NULL;
397 wdev->conn->state = CFG80211_CONN_IDLE;
399 if (status != WLAN_STATUS_SUCCESS) {
400 wdev->sme_state = CFG80211_SME_IDLE;
402 kfree(wdev->conn->ie);
405 kfree(wdev->connect_keys);
406 wdev->connect_keys = NULL;
412 bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
413 wdev->ssid, wdev->ssid_len,
415 WLAN_CAPABILITY_ESS);
420 cfg80211_hold_bss(bss_from_pub(bss));
421 wdev->current_bss = bss_from_pub(bss);
423 wdev->sme_state = CFG80211_SME_CONNECTED;
424 cfg80211_upload_connect_keys(wdev);
426 country_ie = (u8 *) ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
432 * ieee80211_bss_get_ie() ensures we can access:
433 * - country_ie + 2, the start of the country ie data, and
434 * - and country_ie[1] which is the IE length
436 regulatory_hint_11d(wdev->wiphy,
441 void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
442 const u8 *req_ie, size_t req_ie_len,
443 const u8 *resp_ie, size_t resp_ie_len,
444 u16 status, gfp_t gfp)
446 struct wireless_dev *wdev = dev->ieee80211_ptr;
447 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
448 struct cfg80211_event *ev;
451 CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTING);
453 ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
457 ev->type = EVENT_CONNECT_RESULT;
459 memcpy(ev->cr.bssid, bssid, ETH_ALEN);
460 ev->cr.req_ie = ((u8 *)ev) + sizeof(*ev);
461 ev->cr.req_ie_len = req_ie_len;
462 memcpy((void *)ev->cr.req_ie, req_ie, req_ie_len);
463 ev->cr.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len;
464 ev->cr.resp_ie_len = resp_ie_len;
465 memcpy((void *)ev->cr.resp_ie, resp_ie, resp_ie_len);
466 ev->cr.status = status;
468 spin_lock_irqsave(&wdev->event_lock, flags);
469 list_add_tail(&ev->list, &wdev->event_list);
470 spin_unlock_irqrestore(&wdev->event_lock, flags);
471 schedule_work(&rdev->event_work);
473 EXPORT_SYMBOL(cfg80211_connect_result);
475 void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid,
476 const u8 *req_ie, size_t req_ie_len,
477 const u8 *resp_ie, size_t resp_ie_len)
479 struct cfg80211_bss *bss;
480 #ifdef CONFIG_WIRELESS_EXT
481 union iwreq_data wrqu;
484 ASSERT_WDEV_LOCK(wdev);
486 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
489 if (wdev->sme_state != CFG80211_SME_CONNECTED)
492 /* internal error -- how did we get to CONNECTED w/o BSS? */
493 if (WARN_ON(!wdev->current_bss)) {
497 cfg80211_unhold_bss(wdev->current_bss);
498 cfg80211_put_bss(&wdev->current_bss->pub);
499 wdev->current_bss = NULL;
501 bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
502 wdev->ssid, wdev->ssid_len,
503 WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS);
508 cfg80211_hold_bss(bss_from_pub(bss));
509 wdev->current_bss = bss_from_pub(bss);
511 nl80211_send_roamed(wiphy_to_dev(wdev->wiphy), wdev->netdev, bssid,
512 req_ie, req_ie_len, resp_ie, resp_ie_len,
515 #ifdef CONFIG_WIRELESS_EXT
517 memset(&wrqu, 0, sizeof(wrqu));
518 wrqu.data.length = req_ie_len;
519 wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
524 memset(&wrqu, 0, sizeof(wrqu));
525 wrqu.data.length = resp_ie_len;
526 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
530 memset(&wrqu, 0, sizeof(wrqu));
531 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
532 memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
533 memcpy(wdev->wext.prev_bssid, bssid, ETH_ALEN);
534 wdev->wext.prev_bssid_valid = true;
535 wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
539 void cfg80211_roamed(struct net_device *dev, const u8 *bssid,
540 const u8 *req_ie, size_t req_ie_len,
541 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
543 struct wireless_dev *wdev = dev->ieee80211_ptr;
544 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
545 struct cfg80211_event *ev;
548 CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED);
550 ev = kzalloc(sizeof(*ev) + req_ie_len + resp_ie_len, gfp);
554 ev->type = EVENT_ROAMED;
555 memcpy(ev->rm.bssid, bssid, ETH_ALEN);
556 ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev);
557 ev->rm.req_ie_len = req_ie_len;
558 memcpy((void *)ev->rm.req_ie, req_ie, req_ie_len);
559 ev->rm.resp_ie = ((u8 *)ev) + sizeof(*ev) + req_ie_len;
560 ev->rm.resp_ie_len = resp_ie_len;
561 memcpy((void *)ev->rm.resp_ie, resp_ie, resp_ie_len);
563 spin_lock_irqsave(&wdev->event_lock, flags);
564 list_add_tail(&ev->list, &wdev->event_list);
565 spin_unlock_irqrestore(&wdev->event_lock, flags);
566 schedule_work(&rdev->event_work);
568 EXPORT_SYMBOL(cfg80211_roamed);
570 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
571 size_t ie_len, u16 reason, bool from_ap)
573 struct wireless_dev *wdev = dev->ieee80211_ptr;
574 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
576 #ifdef CONFIG_WIRELESS_EXT
577 union iwreq_data wrqu;
580 ASSERT_WDEV_LOCK(wdev);
582 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
585 if (wdev->sme_state != CFG80211_SME_CONNECTED)
588 if (wdev->current_bss) {
589 cfg80211_unhold_bss(wdev->current_bss);
590 cfg80211_put_bss(&wdev->current_bss->pub);
593 wdev->current_bss = NULL;
594 wdev->sme_state = CFG80211_SME_IDLE;
601 kfree(wdev->conn->ie);
602 wdev->conn->ie = NULL;
607 * If this disconnect was due to a disassoc, we
608 * we might still have an auth BSS around. For
609 * the userspace SME that's currently expected,
610 * but for the kernel SME (nl80211 CONNECT or
611 * wireless extensions) we want to clear up all
614 for (i = 0; i < MAX_AUTH_BSSES; i++) {
615 if (!wdev->auth_bsses[i])
617 bssid = wdev->auth_bsses[i]->pub.bssid;
618 ret = __cfg80211_mlme_deauth(rdev, dev, bssid, NULL, 0,
619 WLAN_REASON_DEAUTH_LEAVING);
620 WARN(ret, "deauth failed: %d\n", ret);
624 nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
627 * Delete all the keys ... pairwise keys can't really
628 * exist any more anyway, but default keys might.
630 if (rdev->ops->del_key)
631 for (i = 0; i < 6; i++)
632 rdev->ops->del_key(wdev->wiphy, dev, i, NULL);
634 #ifdef CONFIG_WIRELESS_EXT
635 memset(&wrqu, 0, sizeof(wrqu));
636 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
637 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
641 void cfg80211_disconnected(struct net_device *dev, u16 reason,
642 u8 *ie, size_t ie_len, gfp_t gfp)
644 struct wireless_dev *wdev = dev->ieee80211_ptr;
645 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
646 struct cfg80211_event *ev;
649 CFG80211_DEV_WARN_ON(wdev->sme_state != CFG80211_SME_CONNECTED);
651 ev = kzalloc(sizeof(*ev) + ie_len, gfp);
655 ev->type = EVENT_DISCONNECTED;
656 ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
657 ev->dc.ie_len = ie_len;
658 memcpy((void *)ev->dc.ie, ie, ie_len);
659 ev->dc.reason = reason;
661 spin_lock_irqsave(&wdev->event_lock, flags);
662 list_add_tail(&ev->list, &wdev->event_list);
663 spin_unlock_irqrestore(&wdev->event_lock, flags);
664 schedule_work(&rdev->event_work);
666 EXPORT_SYMBOL(cfg80211_disconnected);
668 int __cfg80211_connect(struct cfg80211_registered_device *rdev,
669 struct net_device *dev,
670 struct cfg80211_connect_params *connect,
671 struct cfg80211_cached_keys *connkeys,
672 const u8 *prev_bssid)
674 struct wireless_dev *wdev = dev->ieee80211_ptr;
675 struct ieee80211_channel *chan;
676 struct cfg80211_bss *bss = NULL;
679 ASSERT_WDEV_LOCK(wdev);
681 if (wdev->sme_state != CFG80211_SME_IDLE)
684 chan = rdev_fixed_channel(rdev, wdev);
685 if (chan && chan != connect->channel)
688 if (WARN_ON(wdev->connect_keys)) {
689 kfree(wdev->connect_keys);
690 wdev->connect_keys = NULL;
693 if (connkeys && connkeys->def >= 0) {
698 cipher = connkeys->params[idx].cipher;
699 /* If given a WEP key we may need it for shared key auth */
700 if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
701 cipher == WLAN_CIPHER_SUITE_WEP104) {
702 connect->key_idx = idx;
703 connect->key = connkeys->params[idx].key;
704 connect->key_len = connkeys->params[idx].key_len;
707 * If ciphers are not set (e.g. when going through
708 * iwconfig), we have to set them appropriately here.
710 if (connect->crypto.cipher_group == 0)
711 connect->crypto.cipher_group = cipher;
713 if (connect->crypto.n_ciphers_pairwise == 0) {
714 connect->crypto.n_ciphers_pairwise = 1;
715 connect->crypto.ciphers_pairwise[0] = cipher;
720 if (!rdev->ops->connect) {
721 if (!rdev->ops->auth || !rdev->ops->assoc)
724 if (WARN_ON(wdev->conn))
727 wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
732 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
734 memcpy(&wdev->conn->params, connect, sizeof(*connect));
735 if (connect->bssid) {
736 wdev->conn->params.bssid = wdev->conn->bssid;
737 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
741 wdev->conn->ie = kmemdup(connect->ie, connect->ie_len,
743 wdev->conn->params.ie = wdev->conn->ie;
744 if (!wdev->conn->ie) {
751 if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
752 wdev->conn->auto_auth = true;
753 /* start with open system ... should mostly work */
754 wdev->conn->params.auth_type =
755 NL80211_AUTHTYPE_OPEN_SYSTEM;
757 wdev->conn->auto_auth = false;
760 memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
761 wdev->ssid_len = connect->ssid_len;
762 wdev->conn->params.ssid = wdev->ssid;
763 wdev->conn->params.ssid_len = connect->ssid_len;
765 /* don't care about result -- but fill bssid & channel */
766 if (!wdev->conn->params.bssid || !wdev->conn->params.channel)
767 bss = cfg80211_get_conn_bss(wdev);
769 wdev->sme_state = CFG80211_SME_CONNECTING;
770 wdev->connect_keys = connkeys;
773 memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
774 wdev->conn->prev_bssid_valid = true;
777 /* we're good if we have a matching bss struct */
779 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
780 err = cfg80211_conn_do_work(wdev);
781 cfg80211_put_bss(bss);
783 /* otherwise we'll need to scan for the AP first */
784 err = cfg80211_conn_scan(wdev);
786 * If we can't scan right now, then we need to scan again
787 * after the current scan finished, since the parameters
788 * changed (unless we find a good AP anyway).
792 wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
796 kfree(wdev->conn->ie);
799 wdev->sme_state = CFG80211_SME_IDLE;
800 wdev->connect_keys = NULL;
806 wdev->sme_state = CFG80211_SME_CONNECTING;
807 wdev->connect_keys = connkeys;
808 err = rdev->ops->connect(&rdev->wiphy, dev, connect);
810 wdev->connect_keys = NULL;
811 wdev->sme_state = CFG80211_SME_IDLE;
815 memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
816 wdev->ssid_len = connect->ssid_len;
822 int cfg80211_connect(struct cfg80211_registered_device *rdev,
823 struct net_device *dev,
824 struct cfg80211_connect_params *connect,
825 struct cfg80211_cached_keys *connkeys)
829 mutex_lock(&rdev->devlist_mtx);
830 wdev_lock(dev->ieee80211_ptr);
831 err = __cfg80211_connect(rdev, dev, connect, connkeys, NULL);
832 wdev_unlock(dev->ieee80211_ptr);
833 mutex_unlock(&rdev->devlist_mtx);
838 int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
839 struct net_device *dev, u16 reason, bool wextev)
841 struct wireless_dev *wdev = dev->ieee80211_ptr;
844 ASSERT_WDEV_LOCK(wdev);
846 if (wdev->sme_state == CFG80211_SME_IDLE)
849 kfree(wdev->connect_keys);
850 wdev->connect_keys = NULL;
852 if (!rdev->ops->disconnect) {
853 if (!rdev->ops->deauth)
856 /* was it connected by userspace SME? */
858 cfg80211_mlme_down(rdev, dev);
862 if (wdev->sme_state == CFG80211_SME_CONNECTING &&
863 (wdev->conn->state == CFG80211_CONN_SCANNING ||
864 wdev->conn->state == CFG80211_CONN_SCAN_AGAIN)) {
865 wdev->sme_state = CFG80211_SME_IDLE;
866 kfree(wdev->conn->ie);
873 /* wdev->conn->params.bssid must be set if > SCANNING */
874 err = __cfg80211_mlme_deauth(rdev, dev,
875 wdev->conn->params.bssid,
880 err = rdev->ops->disconnect(&rdev->wiphy, dev, reason);
885 if (wdev->sme_state == CFG80211_SME_CONNECTED)
886 __cfg80211_disconnected(dev, NULL, 0, 0, false);
887 else if (wdev->sme_state == CFG80211_SME_CONNECTING)
888 __cfg80211_connect_result(dev, NULL, NULL, 0, NULL, 0,
889 WLAN_STATUS_UNSPECIFIED_FAILURE,
895 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
896 struct net_device *dev,
897 u16 reason, bool wextev)
901 wdev_lock(dev->ieee80211_ptr);
902 err = __cfg80211_disconnect(rdev, dev, reason, wextev);
903 wdev_unlock(dev->ieee80211_ptr);
908 void cfg80211_sme_disassoc(struct net_device *dev, int idx)
910 struct wireless_dev *wdev = dev->ieee80211_ptr;
911 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
914 ASSERT_WDEV_LOCK(wdev);
919 if (wdev->conn->state == CFG80211_CONN_IDLE)
923 * Ok, so the association was made by this SME -- we don't
924 * want it any more so deauthenticate too.
927 if (!wdev->auth_bsses[idx])
930 memcpy(bssid, wdev->auth_bsses[idx]->pub.bssid, ETH_ALEN);
931 if (__cfg80211_mlme_deauth(rdev, dev, bssid,
932 NULL, 0, WLAN_REASON_DEAUTH_LEAVING)) {
933 /* whatever -- assume gone anyway */
934 cfg80211_unhold_bss(wdev->auth_bsses[idx]);
935 cfg80211_put_bss(&wdev->auth_bsses[idx]->pub);
936 wdev->auth_bsses[idx] = NULL;