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, 2022-2023 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 lockdep_assert_wiphy(wdev->wiphy);
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 lockdep_assert_wiphy(wdev->wiphy);
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) {
258 if (!netif_running(wdev->netdev))
262 wdev->conn->state == CFG80211_CONN_CONNECTED)
265 if (wdev->conn->params.bssid) {
266 memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
269 treason = NL80211_TIMEOUT_UNSPECIFIED;
270 if (cfg80211_conn_do_work(wdev, &treason)) {
271 struct cfg80211_connect_resp_params cr;
273 memset(&cr, 0, sizeof(cr));
275 cr.links[0].bssid = bssid;
276 cr.timeout_reason = treason;
277 __cfg80211_connect_result(wdev->netdev, &cr, false);
281 wiphy_unlock(&rdev->wiphy);
284 static void cfg80211_step_auth_next(struct cfg80211_conn *conn,
285 struct cfg80211_bss *bss)
287 memcpy(conn->bssid, bss->bssid, ETH_ALEN);
288 conn->params.bssid = conn->bssid;
289 conn->params.channel = bss->channel;
290 conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
293 /* Returned bss is reference counted and must be cleaned up appropriately. */
294 static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
296 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
297 struct cfg80211_bss *bss;
299 lockdep_assert_wiphy(wdev->wiphy);
301 bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
302 wdev->conn->params.bssid,
303 wdev->conn->params.ssid,
304 wdev->conn->params.ssid_len,
306 IEEE80211_PRIVACY(wdev->conn->params.privacy));
310 cfg80211_step_auth_next(wdev->conn, bss);
311 schedule_work(&rdev->conn_work);
316 void cfg80211_sme_scan_done(struct net_device *dev)
318 struct wireless_dev *wdev = dev->ieee80211_ptr;
319 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
320 struct cfg80211_bss *bss;
322 lockdep_assert_wiphy(wdev->wiphy);
327 if (wdev->conn->state != CFG80211_CONN_SCANNING &&
328 wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
331 bss = cfg80211_get_conn_bss(wdev);
333 cfg80211_put_bss(&rdev->wiphy, bss);
335 schedule_work(&rdev->conn_work);
338 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len)
340 struct wiphy *wiphy = wdev->wiphy;
341 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
342 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
343 u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
345 lockdep_assert_wiphy(wdev->wiphy);
347 if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED)
350 if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
351 wdev->conn->auto_auth &&
352 wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
353 /* select automatically between only open, shared, leap */
354 switch (wdev->conn->params.auth_type) {
355 case NL80211_AUTHTYPE_OPEN_SYSTEM:
356 if (wdev->connect_keys)
357 wdev->conn->params.auth_type =
358 NL80211_AUTHTYPE_SHARED_KEY;
360 wdev->conn->params.auth_type =
361 NL80211_AUTHTYPE_NETWORK_EAP;
363 case NL80211_AUTHTYPE_SHARED_KEY:
364 wdev->conn->params.auth_type =
365 NL80211_AUTHTYPE_NETWORK_EAP;
369 wdev->conn->params.auth_type =
370 NL80211_AUTHTYPE_OPEN_SYSTEM;
373 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
374 schedule_work(&rdev->conn_work);
375 } else if (status_code != WLAN_STATUS_SUCCESS) {
376 struct cfg80211_connect_resp_params cr;
378 memset(&cr, 0, sizeof(cr));
379 cr.status = status_code;
380 cr.links[0].bssid = mgmt->bssid;
381 cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED;
382 __cfg80211_connect_result(wdev->netdev, &cr, false);
383 } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
384 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
385 schedule_work(&rdev->conn_work);
389 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status)
391 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
396 if (status == WLAN_STATUS_SUCCESS) {
397 wdev->conn->state = CFG80211_CONN_CONNECTED;
401 if (wdev->conn->prev_bssid_valid) {
403 * Some stupid APs don't accept reassoc, so we
404 * need to fall back to trying regular assoc;
405 * return true so no event is sent to userspace.
407 wdev->conn->prev_bssid_valid = false;
408 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
409 schedule_work(&rdev->conn_work);
413 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED;
414 schedule_work(&rdev->conn_work);
418 void cfg80211_sme_deauth(struct wireless_dev *wdev)
420 cfg80211_sme_free(wdev);
423 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev)
425 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
430 wdev->conn->state = CFG80211_CONN_AUTH_FAILED_TIMEOUT;
431 schedule_work(&rdev->conn_work);
434 void cfg80211_sme_disassoc(struct wireless_dev *wdev)
436 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
441 wdev->conn->state = CFG80211_CONN_DEAUTH;
442 schedule_work(&rdev->conn_work);
445 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev)
447 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
452 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED_TIMEOUT;
453 schedule_work(&rdev->conn_work);
456 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev)
458 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
463 wdev->conn->state = CFG80211_CONN_ABANDON;
464 schedule_work(&rdev->conn_work);
467 static void cfg80211_wdev_release_bsses(struct wireless_dev *wdev)
471 for_each_valid_link(wdev, link) {
472 if (!wdev->links[link].client.current_bss)
474 cfg80211_unhold_bss(wdev->links[link].client.current_bss);
475 cfg80211_put_bss(wdev->wiphy,
476 &wdev->links[link].client.current_bss->pub);
477 wdev->links[link].client.current_bss = NULL;
481 void cfg80211_wdev_release_link_bsses(struct wireless_dev *wdev, u16 link_mask)
485 for_each_valid_link(wdev, link) {
486 if (!wdev->links[link].client.current_bss ||
487 !(link_mask & BIT(link)))
489 cfg80211_unhold_bss(wdev->links[link].client.current_bss);
490 cfg80211_put_bss(wdev->wiphy,
491 &wdev->links[link].client.current_bss->pub);
492 wdev->links[link].client.current_bss = NULL;
496 static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev,
497 const u8 *ies, size_t ies_len,
498 const u8 **out_ies, size_t *out_ies_len)
500 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
504 if (!rdev->wiphy.extended_capabilities_len ||
505 (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) {
506 *out_ies = kmemdup(ies, ies_len, GFP_KERNEL);
509 *out_ies_len = ies_len;
513 buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2,
519 static const u8 before_extcapa[] = {
520 /* not listing IEs expected to be created by driver */
523 WLAN_EID_RRM_ENABLED_CAPABILITIES,
524 WLAN_EID_MOBILITY_DOMAIN,
525 WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
526 WLAN_EID_BSS_COEX_2040,
529 offs = ieee80211_ie_split(ies, ies_len, before_extcapa,
530 ARRAY_SIZE(before_extcapa), 0);
531 memcpy(buf, ies, offs);
532 /* leave a whole for extended capabilities IE */
533 memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2,
534 ies + offs, ies_len - offs);
539 /* place extended capabilities IE (with only driver capabilities) */
540 buf[offs] = WLAN_EID_EXT_CAPABILITY;
541 buf[offs + 1] = rdev->wiphy.extended_capabilities_len;
542 memcpy(buf + offs + 2,
543 rdev->wiphy.extended_capabilities,
544 rdev->wiphy.extended_capabilities_len);
547 *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2;
552 static int cfg80211_sme_connect(struct wireless_dev *wdev,
553 struct cfg80211_connect_params *connect,
554 const u8 *prev_bssid)
556 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
557 struct cfg80211_bss *bss;
560 if (!rdev->ops->auth || !rdev->ops->assoc)
563 cfg80211_wdev_release_bsses(wdev);
565 if (wdev->connected) {
566 cfg80211_sme_free(wdev);
567 wdev->connected = false;
573 wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
578 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
580 memcpy(&wdev->conn->params, connect, sizeof(*connect));
581 if (connect->bssid) {
582 wdev->conn->params.bssid = wdev->conn->bssid;
583 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
586 if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len,
588 &wdev->conn->params.ie_len)) {
593 wdev->conn->params.ie = wdev->conn->ie;
595 if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
596 wdev->conn->auto_auth = true;
597 /* start with open system ... should mostly work */
598 wdev->conn->params.auth_type =
599 NL80211_AUTHTYPE_OPEN_SYSTEM;
601 wdev->conn->auto_auth = false;
604 wdev->conn->params.ssid = wdev->u.client.ssid;
605 wdev->conn->params.ssid_len = wdev->u.client.ssid_len;
607 /* see if we have the bss already */
608 bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
609 wdev->conn->params.bssid,
610 wdev->conn->params.ssid,
611 wdev->conn->params.ssid_len,
613 IEEE80211_PRIVACY(wdev->conn->params.privacy));
616 memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
617 wdev->conn->prev_bssid_valid = true;
620 /* we're good if we have a matching bss struct */
622 enum nl80211_timeout_reason treason;
624 cfg80211_step_auth_next(wdev->conn, bss);
625 err = cfg80211_conn_do_work(wdev, &treason);
626 cfg80211_put_bss(wdev->wiphy, bss);
628 /* otherwise we'll need to scan for the AP first */
629 err = cfg80211_conn_scan(wdev);
632 * If we can't scan right now, then we need to scan again
633 * after the current scan finished, since the parameters
634 * changed (unless we find a good AP anyway).
638 wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
643 cfg80211_sme_free(wdev);
648 static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason)
650 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
656 if (!rdev->ops->deauth)
659 if (wdev->conn->state == CFG80211_CONN_SCANNING ||
660 wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) {
665 /* wdev->conn->params.bssid must be set if > SCANNING */
666 err = cfg80211_mlme_deauth(rdev, wdev->netdev,
667 wdev->conn->params.bssid,
668 NULL, 0, reason, false);
670 cfg80211_sme_free(wdev);
675 * code shared for in-device and software SME
678 static bool cfg80211_is_all_idle(void)
680 struct cfg80211_registered_device *rdev;
681 struct wireless_dev *wdev;
682 bool is_all_idle = true;
685 * All devices must be idle as otherwise if you are actively
686 * scanning some new beacon hints could be learned and would
687 * count as new regulatory hints.
688 * Also if there is any other active beaconing interface we
689 * need not issue a disconnect hint and reset any info such
690 * as chan dfs state, etc.
692 for_each_rdev(rdev) {
693 wiphy_lock(&rdev->wiphy);
694 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
695 if (wdev->conn || wdev->connected ||
696 cfg80211_beaconing_iface_active(wdev))
699 wiphy_unlock(&rdev->wiphy);
705 static void disconnect_work(struct work_struct *work)
708 if (cfg80211_is_all_idle())
709 regulatory_hint_disconnect();
713 DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
716 cfg80211_connect_result_release_bsses(struct wireless_dev *wdev,
717 struct cfg80211_connect_resp_params *cr)
721 for_each_valid_link(cr, link) {
722 if (!cr->links[link].bss)
724 cfg80211_unhold_bss(bss_from_pub(cr->links[link].bss));
725 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
730 * API calls for drivers implementing connect/disconnect and
734 /* This method must consume bss one way or another */
735 void __cfg80211_connect_result(struct net_device *dev,
736 struct cfg80211_connect_resp_params *cr,
739 struct wireless_dev *wdev = dev->ieee80211_ptr;
740 const struct element *country_elem = NULL;
741 const struct element *ssid;
742 const u8 *country_data;
744 #ifdef CONFIG_CFG80211_WEXT
745 union iwreq_data wrqu;
748 const u8 *connected_addr;
749 bool bss_not_found = false;
751 lockdep_assert_wiphy(wdev->wiphy);
753 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
754 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
757 if (cr->valid_links) {
758 if (WARN_ON(!cr->ap_mld_addr))
761 for_each_valid_link(cr, link) {
762 if (WARN_ON(!cr->links[link].addr))
766 if (WARN_ON(wdev->connect_keys))
770 wdev->unprot_beacon_reported = 0;
771 nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr,
773 connected_addr = cr->valid_links ? cr->ap_mld_addr : cr->links[0].bssid;
775 #ifdef CONFIG_CFG80211_WEXT
776 if (wextev && !cr->valid_links) {
777 if (cr->req_ie && cr->status == WLAN_STATUS_SUCCESS) {
778 memset(&wrqu, 0, sizeof(wrqu));
779 wrqu.data.length = cr->req_ie_len;
780 wireless_send_event(dev, IWEVASSOCREQIE, &wrqu,
784 if (cr->resp_ie && cr->status == WLAN_STATUS_SUCCESS) {
785 memset(&wrqu, 0, sizeof(wrqu));
786 wrqu.data.length = cr->resp_ie_len;
787 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu,
791 memset(&wrqu, 0, sizeof(wrqu));
792 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
793 if (connected_addr && cr->status == WLAN_STATUS_SUCCESS) {
794 memcpy(wrqu.ap_addr.sa_data, connected_addr, ETH_ALEN);
795 memcpy(wdev->wext.prev_bssid, connected_addr, ETH_ALEN);
796 wdev->wext.prev_bssid_valid = true;
798 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
802 if (cr->status == WLAN_STATUS_SUCCESS) {
803 if (!wiphy_to_rdev(wdev->wiphy)->ops->connect) {
804 for_each_valid_link(cr, link) {
805 if (WARN_ON_ONCE(!cr->links[link].bss))
810 for_each_valid_link(cr, link) {
811 /* don't do extra lookups for failures */
812 if (cr->links[link].status != WLAN_STATUS_SUCCESS)
815 if (cr->links[link].bss)
818 cr->links[link].bss =
819 cfg80211_get_bss(wdev->wiphy, NULL,
820 cr->links[link].bssid,
822 wdev->u.client.ssid_len,
824 IEEE80211_PRIVACY_ANY);
825 if (!cr->links[link].bss) {
826 bss_not_found = true;
829 cfg80211_hold_bss(bss_from_pub(cr->links[link].bss));
833 cfg80211_wdev_release_bsses(wdev);
835 if (cr->status != WLAN_STATUS_SUCCESS) {
836 kfree_sensitive(wdev->connect_keys);
837 wdev->connect_keys = NULL;
838 wdev->u.client.ssid_len = 0;
839 wdev->conn_owner_nlportid = 0;
840 cfg80211_connect_result_release_bsses(wdev, cr);
841 cfg80211_sme_free(wdev);
845 if (WARN_ON(bss_not_found)) {
846 cfg80211_connect_result_release_bsses(wdev, cr);
850 memset(wdev->links, 0, sizeof(wdev->links));
851 for_each_valid_link(cr, link) {
852 if (cr->links[link].status == WLAN_STATUS_SUCCESS)
854 cr->valid_links &= ~BIT(link);
855 /* don't require bss pointer for failed links */
856 if (!cr->links[link].bss)
858 cfg80211_unhold_bss(bss_from_pub(cr->links[link].bss));
859 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
861 wdev->valid_links = cr->valid_links;
862 for_each_valid_link(cr, link)
863 wdev->links[link].client.current_bss =
864 bss_from_pub(cr->links[link].bss);
865 wdev->connected = true;
866 ether_addr_copy(wdev->u.client.connected_addr, connected_addr);
867 if (cr->valid_links) {
868 for_each_valid_link(cr, link)
869 memcpy(wdev->links[link].addr, cr->links[link].addr,
873 cfg80211_upload_connect_keys(wdev);
876 for_each_valid_link(cr, link) {
878 ieee80211_bss_get_elem(cr->links[link].bss,
888 country_datalen = country_elem->datalen;
889 country_data = kmemdup(country_elem->data, country_datalen, GFP_ATOMIC);
895 regulatory_hint_country_ie(wdev->wiphy,
896 cr->links[link].bss->channel->band,
897 country_data, country_datalen);
900 if (!wdev->u.client.ssid_len) {
902 for_each_valid_link(cr, link) {
903 ssid = ieee80211_bss_get_elem(cr->links[link].bss,
906 if (!ssid || !ssid->datalen)
909 memcpy(wdev->u.client.ssid, ssid->data, ssid->datalen);
910 wdev->u.client.ssid_len = ssid->datalen;
918 for_each_valid_link(cr, link)
919 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
922 static void cfg80211_update_link_bss(struct wireless_dev *wdev,
923 struct cfg80211_bss **bss)
925 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
926 struct cfg80211_internal_bss *ibss;
931 ibss = bss_from_pub(*bss);
932 if (list_empty(&ibss->list)) {
933 struct cfg80211_bss *found = NULL, *tmp = *bss;
935 found = cfg80211_get_bss(wdev->wiphy, NULL,
938 wdev->u.client.ssid_len,
940 IEEE80211_PRIVACY_ANY);
942 /* The same BSS is already updated so use it
943 * instead, as it has latest info.
947 /* Update with BSS provided by driver, it will
948 * be freshly added and ref cnted, we can free
951 * signal_valid can be false, as we are not
952 * expecting the BSS to be found.
954 * keep the old timestamp to avoid confusion
956 cfg80211_bss_update(rdev, ibss, false,
960 cfg80211_put_bss(wdev->wiphy, tmp);
964 /* Consumes bss object(s) one way or another */
965 void cfg80211_connect_done(struct net_device *dev,
966 struct cfg80211_connect_resp_params *params,
969 struct wireless_dev *wdev = dev->ieee80211_ptr;
970 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
971 struct cfg80211_event *ev;
974 size_t link_info_size = 0;
977 for_each_valid_link(params, link) {
978 cfg80211_update_link_bss(wdev, ¶ms->links[link].bss);
979 link_info_size += params->links[link].bssid ? ETH_ALEN : 0;
980 link_info_size += params->links[link].addr ? ETH_ALEN : 0;
983 ev = kzalloc(sizeof(*ev) + (params->ap_mld_addr ? ETH_ALEN : 0) +
984 params->req_ie_len + params->resp_ie_len +
985 params->fils.kek_len + params->fils.pmk_len +
986 (params->fils.pmkid ? WLAN_PMKID_LEN : 0) + link_info_size,
990 for_each_valid_link(params, link)
991 cfg80211_put_bss(wdev->wiphy,
992 params->links[link].bss);
996 ev->type = EVENT_CONNECT_RESULT;
997 next = ((u8 *)ev) + sizeof(*ev);
998 if (params->ap_mld_addr) {
999 ev->cr.ap_mld_addr = next;
1000 memcpy((void *)ev->cr.ap_mld_addr, params->ap_mld_addr,
1004 if (params->req_ie_len) {
1005 ev->cr.req_ie = next;
1006 ev->cr.req_ie_len = params->req_ie_len;
1007 memcpy((void *)ev->cr.req_ie, params->req_ie,
1008 params->req_ie_len);
1009 next += params->req_ie_len;
1011 if (params->resp_ie_len) {
1012 ev->cr.resp_ie = next;
1013 ev->cr.resp_ie_len = params->resp_ie_len;
1014 memcpy((void *)ev->cr.resp_ie, params->resp_ie,
1015 params->resp_ie_len);
1016 next += params->resp_ie_len;
1018 if (params->fils.kek_len) {
1019 ev->cr.fils.kek = next;
1020 ev->cr.fils.kek_len = params->fils.kek_len;
1021 memcpy((void *)ev->cr.fils.kek, params->fils.kek,
1022 params->fils.kek_len);
1023 next += params->fils.kek_len;
1025 if (params->fils.pmk_len) {
1026 ev->cr.fils.pmk = next;
1027 ev->cr.fils.pmk_len = params->fils.pmk_len;
1028 memcpy((void *)ev->cr.fils.pmk, params->fils.pmk,
1029 params->fils.pmk_len);
1030 next += params->fils.pmk_len;
1032 if (params->fils.pmkid) {
1033 ev->cr.fils.pmkid = next;
1034 memcpy((void *)ev->cr.fils.pmkid, params->fils.pmkid,
1036 next += WLAN_PMKID_LEN;
1038 ev->cr.fils.update_erp_next_seq_num = params->fils.update_erp_next_seq_num;
1039 if (params->fils.update_erp_next_seq_num)
1040 ev->cr.fils.erp_next_seq_num = params->fils.erp_next_seq_num;
1041 ev->cr.valid_links = params->valid_links;
1042 for_each_valid_link(params, link) {
1043 if (params->links[link].bss)
1045 bss_from_pub(params->links[link].bss));
1046 ev->cr.links[link].bss = params->links[link].bss;
1048 if (params->links[link].addr) {
1049 ev->cr.links[link].addr = next;
1050 memcpy((void *)ev->cr.links[link].addr,
1051 params->links[link].addr,
1055 if (params->links[link].bssid) {
1056 ev->cr.links[link].bssid = next;
1057 memcpy((void *)ev->cr.links[link].bssid,
1058 params->links[link].bssid,
1063 ev->cr.status = params->status;
1064 ev->cr.timeout_reason = params->timeout_reason;
1066 spin_lock_irqsave(&wdev->event_lock, flags);
1067 list_add_tail(&ev->list, &wdev->event_list);
1068 spin_unlock_irqrestore(&wdev->event_lock, flags);
1069 queue_work(cfg80211_wq, &rdev->event_work);
1071 EXPORT_SYMBOL(cfg80211_connect_done);
1073 /* Consumes bss object one way or another */
1074 void __cfg80211_roamed(struct wireless_dev *wdev,
1075 struct cfg80211_roam_info *info)
1077 #ifdef CONFIG_CFG80211_WEXT
1078 union iwreq_data wrqu;
1081 const u8 *connected_addr;
1083 lockdep_assert_wiphy(wdev->wiphy);
1085 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1086 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1089 if (WARN_ON(!wdev->connected))
1092 if (info->valid_links) {
1093 if (WARN_ON(!info->ap_mld_addr))
1096 for_each_valid_link(info, link) {
1097 if (WARN_ON(!info->links[link].addr))
1102 cfg80211_wdev_release_bsses(wdev);
1104 for_each_valid_link(info, link) {
1105 if (WARN_ON(!info->links[link].bss))
1109 memset(wdev->links, 0, sizeof(wdev->links));
1110 wdev->valid_links = info->valid_links;
1111 for_each_valid_link(info, link) {
1112 cfg80211_hold_bss(bss_from_pub(info->links[link].bss));
1113 wdev->links[link].client.current_bss =
1114 bss_from_pub(info->links[link].bss);
1117 connected_addr = info->valid_links ?
1119 info->links[0].bss->bssid;
1120 ether_addr_copy(wdev->u.client.connected_addr, connected_addr);
1121 if (info->valid_links) {
1122 for_each_valid_link(info, link)
1123 memcpy(wdev->links[link].addr, info->links[link].addr,
1126 wdev->unprot_beacon_reported = 0;
1127 nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy),
1128 wdev->netdev, info, GFP_KERNEL);
1130 #ifdef CONFIG_CFG80211_WEXT
1131 if (!info->valid_links) {
1133 memset(&wrqu, 0, sizeof(wrqu));
1134 wrqu.data.length = info->req_ie_len;
1135 wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
1136 &wrqu, info->req_ie);
1139 if (info->resp_ie) {
1140 memset(&wrqu, 0, sizeof(wrqu));
1141 wrqu.data.length = info->resp_ie_len;
1142 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
1143 &wrqu, info->resp_ie);
1146 memset(&wrqu, 0, sizeof(wrqu));
1147 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1148 memcpy(wrqu.ap_addr.sa_data, connected_addr, ETH_ALEN);
1149 memcpy(wdev->wext.prev_bssid, connected_addr, ETH_ALEN);
1150 wdev->wext.prev_bssid_valid = true;
1151 wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
1157 for_each_valid_link(info, link)
1158 cfg80211_put_bss(wdev->wiphy, info->links[link].bss);
1161 /* Consumes info->links.bss object(s) one way or another */
1162 void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
1165 struct wireless_dev *wdev = dev->ieee80211_ptr;
1166 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1167 struct cfg80211_event *ev;
1168 unsigned long flags;
1171 size_t link_info_size = 0;
1172 bool bss_not_found = false;
1174 for_each_valid_link(info, link) {
1175 link_info_size += info->links[link].addr ? ETH_ALEN : 0;
1176 link_info_size += info->links[link].bssid ? ETH_ALEN : 0;
1178 if (info->links[link].bss)
1181 info->links[link].bss =
1182 cfg80211_get_bss(wdev->wiphy,
1183 info->links[link].channel,
1184 info->links[link].bssid,
1185 wdev->u.client.ssid,
1186 wdev->u.client.ssid_len,
1187 wdev->conn_bss_type,
1188 IEEE80211_PRIVACY_ANY);
1190 if (!info->links[link].bss) {
1191 bss_not_found = true;
1196 if (WARN_ON(bss_not_found))
1199 ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len +
1200 info->fils.kek_len + info->fils.pmk_len +
1201 (info->fils.pmkid ? WLAN_PMKID_LEN : 0) +
1202 (info->ap_mld_addr ? ETH_ALEN : 0) + link_info_size, gfp);
1206 ev->type = EVENT_ROAMED;
1207 next = ((u8 *)ev) + sizeof(*ev);
1208 if (info->req_ie_len) {
1209 ev->rm.req_ie = next;
1210 ev->rm.req_ie_len = info->req_ie_len;
1211 memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len);
1212 next += info->req_ie_len;
1214 if (info->resp_ie_len) {
1215 ev->rm.resp_ie = next;
1216 ev->rm.resp_ie_len = info->resp_ie_len;
1217 memcpy((void *)ev->rm.resp_ie, info->resp_ie,
1219 next += info->resp_ie_len;
1221 if (info->fils.kek_len) {
1222 ev->rm.fils.kek = next;
1223 ev->rm.fils.kek_len = info->fils.kek_len;
1224 memcpy((void *)ev->rm.fils.kek, info->fils.kek,
1225 info->fils.kek_len);
1226 next += info->fils.kek_len;
1228 if (info->fils.pmk_len) {
1229 ev->rm.fils.pmk = next;
1230 ev->rm.fils.pmk_len = info->fils.pmk_len;
1231 memcpy((void *)ev->rm.fils.pmk, info->fils.pmk,
1232 info->fils.pmk_len);
1233 next += info->fils.pmk_len;
1235 if (info->fils.pmkid) {
1236 ev->rm.fils.pmkid = next;
1237 memcpy((void *)ev->rm.fils.pmkid, info->fils.pmkid,
1239 next += WLAN_PMKID_LEN;
1241 ev->rm.fils.update_erp_next_seq_num = info->fils.update_erp_next_seq_num;
1242 if (info->fils.update_erp_next_seq_num)
1243 ev->rm.fils.erp_next_seq_num = info->fils.erp_next_seq_num;
1244 if (info->ap_mld_addr) {
1245 ev->rm.ap_mld_addr = next;
1246 memcpy((void *)ev->rm.ap_mld_addr, info->ap_mld_addr,
1250 ev->rm.valid_links = info->valid_links;
1251 for_each_valid_link(info, link) {
1252 ev->rm.links[link].bss = info->links[link].bss;
1254 if (info->links[link].addr) {
1255 ev->rm.links[link].addr = next;
1256 memcpy((void *)ev->rm.links[link].addr,
1257 info->links[link].addr,
1262 if (info->links[link].bssid) {
1263 ev->rm.links[link].bssid = next;
1264 memcpy((void *)ev->rm.links[link].bssid,
1265 info->links[link].bssid,
1271 spin_lock_irqsave(&wdev->event_lock, flags);
1272 list_add_tail(&ev->list, &wdev->event_list);
1273 spin_unlock_irqrestore(&wdev->event_lock, flags);
1274 queue_work(cfg80211_wq, &rdev->event_work);
1278 for_each_valid_link(info, link)
1279 cfg80211_put_bss(wdev->wiphy, info->links[link].bss);
1282 EXPORT_SYMBOL(cfg80211_roamed);
1284 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid,
1285 const u8 *td_bitmap, u8 td_bitmap_len)
1287 lockdep_assert_wiphy(wdev->wiphy);
1289 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1290 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1293 if (WARN_ON(!wdev->connected) ||
1294 WARN_ON(!ether_addr_equal(wdev->u.client.connected_addr, bssid)))
1297 nl80211_send_port_authorized(wiphy_to_rdev(wdev->wiphy), wdev->netdev,
1298 bssid, td_bitmap, td_bitmap_len);
1301 void cfg80211_port_authorized(struct net_device *dev, const u8 *bssid,
1302 const u8 *td_bitmap, u8 td_bitmap_len, gfp_t gfp)
1304 struct wireless_dev *wdev = dev->ieee80211_ptr;
1305 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1306 struct cfg80211_event *ev;
1307 unsigned long flags;
1309 if (WARN_ON(!bssid))
1312 ev = kzalloc(sizeof(*ev) + td_bitmap_len, gfp);
1316 ev->type = EVENT_PORT_AUTHORIZED;
1317 memcpy(ev->pa.bssid, bssid, ETH_ALEN);
1318 ev->pa.td_bitmap = ((u8 *)ev) + sizeof(*ev);
1319 ev->pa.td_bitmap_len = td_bitmap_len;
1320 memcpy((void *)ev->pa.td_bitmap, td_bitmap, td_bitmap_len);
1323 * Use the wdev event list so that if there are pending
1324 * connected/roamed events, they will be reported first.
1326 spin_lock_irqsave(&wdev->event_lock, flags);
1327 list_add_tail(&ev->list, &wdev->event_list);
1328 spin_unlock_irqrestore(&wdev->event_lock, flags);
1329 queue_work(cfg80211_wq, &rdev->event_work);
1331 EXPORT_SYMBOL(cfg80211_port_authorized);
1333 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
1334 size_t ie_len, u16 reason, bool from_ap)
1336 struct wireless_dev *wdev = dev->ieee80211_ptr;
1337 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1339 #ifdef CONFIG_CFG80211_WEXT
1340 union iwreq_data wrqu;
1343 lockdep_assert_wiphy(wdev->wiphy);
1345 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1346 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1349 cfg80211_wdev_release_bsses(wdev);
1350 wdev->connected = false;
1351 wdev->u.client.ssid_len = 0;
1352 wdev->conn_owner_nlportid = 0;
1353 kfree_sensitive(wdev->connect_keys);
1354 wdev->connect_keys = NULL;
1356 nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
1358 /* stop critical protocol if supported */
1359 if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) {
1360 rdev->crit_proto_nlportid = 0;
1361 rdev_crit_proto_stop(rdev, wdev);
1365 * Delete all the keys ... pairwise keys can't really
1366 * exist any more anyway, but default keys might.
1368 if (rdev->ops->del_key) {
1369 int max_key_idx = 5;
1371 if (wiphy_ext_feature_isset(
1373 NL80211_EXT_FEATURE_BEACON_PROTECTION) ||
1374 wiphy_ext_feature_isset(
1376 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT))
1378 for (i = 0; i <= max_key_idx; i++)
1379 rdev_del_key(rdev, dev, -1, i, false, NULL);
1382 rdev_set_qos_map(rdev, dev, NULL);
1384 #ifdef CONFIG_CFG80211_WEXT
1385 memset(&wrqu, 0, sizeof(wrqu));
1386 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1387 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1388 wdev->wext.connect.ssid_len = 0;
1391 schedule_work(&cfg80211_disconnect_work);
1394 void cfg80211_disconnected(struct net_device *dev, u16 reason,
1395 const u8 *ie, size_t ie_len,
1396 bool locally_generated, gfp_t gfp)
1398 struct wireless_dev *wdev = dev->ieee80211_ptr;
1399 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1400 struct cfg80211_event *ev;
1401 unsigned long flags;
1403 ev = kzalloc(sizeof(*ev) + ie_len, gfp);
1407 ev->type = EVENT_DISCONNECTED;
1408 ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
1409 ev->dc.ie_len = ie_len;
1410 memcpy((void *)ev->dc.ie, ie, ie_len);
1411 ev->dc.reason = reason;
1412 ev->dc.locally_generated = locally_generated;
1414 spin_lock_irqsave(&wdev->event_lock, flags);
1415 list_add_tail(&ev->list, &wdev->event_list);
1416 spin_unlock_irqrestore(&wdev->event_lock, flags);
1417 queue_work(cfg80211_wq, &rdev->event_work);
1419 EXPORT_SYMBOL(cfg80211_disconnected);
1422 * API calls for nl80211/wext compatibility code
1424 int cfg80211_connect(struct cfg80211_registered_device *rdev,
1425 struct net_device *dev,
1426 struct cfg80211_connect_params *connect,
1427 struct cfg80211_cached_keys *connkeys,
1428 const u8 *prev_bssid)
1430 struct wireless_dev *wdev = dev->ieee80211_ptr;
1433 lockdep_assert_wiphy(wdev->wiphy);
1436 * If we have an ssid_len, we're trying to connect or are
1437 * already connected, so reject a new SSID unless it's the
1438 * same (which is the case for re-association.)
1440 if (wdev->u.client.ssid_len &&
1441 (wdev->u.client.ssid_len != connect->ssid_len ||
1442 memcmp(wdev->u.client.ssid, connect->ssid, wdev->u.client.ssid_len)))
1446 * If connected, reject (re-)association unless prev_bssid
1447 * matches the current BSSID.
1449 if (wdev->connected) {
1452 if (!ether_addr_equal(prev_bssid,
1453 wdev->u.client.connected_addr))
1458 * Reject if we're in the process of connecting with WEP,
1459 * this case isn't very interesting and trying to handle
1460 * it would make the code much more complex.
1462 if (wdev->connect_keys)
1463 return -EINPROGRESS;
1465 cfg80211_oper_and_ht_capa(&connect->ht_capa_mask,
1466 rdev->wiphy.ht_capa_mod_mask);
1467 cfg80211_oper_and_vht_capa(&connect->vht_capa_mask,
1468 rdev->wiphy.vht_capa_mod_mask);
1470 if (connkeys && connkeys->def >= 0) {
1474 idx = connkeys->def;
1475 cipher = connkeys->params[idx].cipher;
1476 /* If given a WEP key we may need it for shared key auth */
1477 if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
1478 cipher == WLAN_CIPHER_SUITE_WEP104) {
1479 connect->key_idx = idx;
1480 connect->key = connkeys->params[idx].key;
1481 connect->key_len = connkeys->params[idx].key_len;
1484 * If ciphers are not set (e.g. when going through
1485 * iwconfig), we have to set them appropriately here.
1487 if (connect->crypto.cipher_group == 0)
1488 connect->crypto.cipher_group = cipher;
1490 if (connect->crypto.n_ciphers_pairwise == 0) {
1491 connect->crypto.n_ciphers_pairwise = 1;
1492 connect->crypto.ciphers_pairwise[0] = cipher;
1496 if (WARN_ON(connkeys))
1499 /* connect can point to wdev->wext.connect which
1500 * can hold key data from a previous connection
1502 connect->key = NULL;
1503 connect->key_len = 0;
1504 connect->key_idx = 0;
1507 wdev->connect_keys = connkeys;
1508 memcpy(wdev->u.client.ssid, connect->ssid, connect->ssid_len);
1509 wdev->u.client.ssid_len = connect->ssid_len;
1511 wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS :
1512 IEEE80211_BSS_TYPE_ESS;
1514 if (!rdev->ops->connect)
1515 err = cfg80211_sme_connect(wdev, connect, prev_bssid);
1517 err = rdev_connect(rdev, dev, connect);
1520 wdev->connect_keys = NULL;
1522 * This could be reassoc getting refused, don't clear
1523 * ssid_len in that case.
1525 if (!wdev->connected)
1526 wdev->u.client.ssid_len = 0;
1533 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
1534 struct net_device *dev, u16 reason, bool wextev)
1536 struct wireless_dev *wdev = dev->ieee80211_ptr;
1539 lockdep_assert_wiphy(wdev->wiphy);
1541 kfree_sensitive(wdev->connect_keys);
1542 wdev->connect_keys = NULL;
1544 wdev->conn_owner_nlportid = 0;
1547 err = cfg80211_sme_disconnect(wdev, reason);
1548 else if (!rdev->ops->disconnect)
1549 cfg80211_mlme_down(rdev, dev);
1550 else if (wdev->u.client.ssid_len)
1551 err = rdev_disconnect(rdev, dev, reason);
1554 * Clear ssid_len unless we actually were fully connected,
1555 * in which case cfg80211_disconnected() will take care of
1558 if (!wdev->connected)
1559 wdev->u.client.ssid_len = 0;
1565 * Used to clean up after the connection / connection attempt owner socket
1568 void cfg80211_autodisconnect_wk(struct work_struct *work)
1570 struct wireless_dev *wdev =
1571 container_of(work, struct wireless_dev, disconnect_wk);
1572 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1574 wiphy_lock(wdev->wiphy);
1576 if (wdev->conn_owner_nlportid) {
1577 switch (wdev->iftype) {
1578 case NL80211_IFTYPE_ADHOC:
1579 cfg80211_leave_ibss(rdev, wdev->netdev, false);
1581 case NL80211_IFTYPE_AP:
1582 case NL80211_IFTYPE_P2P_GO:
1583 cfg80211_stop_ap(rdev, wdev->netdev, -1, false);
1585 case NL80211_IFTYPE_MESH_POINT:
1586 cfg80211_leave_mesh(rdev, wdev->netdev);
1588 case NL80211_IFTYPE_STATION:
1589 case NL80211_IFTYPE_P2P_CLIENT:
1591 * Use disconnect_bssid if still connecting and
1592 * ops->disconnect not implemented. Otherwise we can
1593 * use cfg80211_disconnect.
1595 if (rdev->ops->disconnect || wdev->connected)
1596 cfg80211_disconnect(rdev, wdev->netdev,
1597 WLAN_REASON_DEAUTH_LEAVING,
1600 cfg80211_mlme_deauth(rdev, wdev->netdev,
1601 wdev->disconnect_bssid,
1603 WLAN_REASON_DEAUTH_LEAVING,
1611 wiphy_unlock(wdev->wiphy);