1 // SPDX-License-Identifier: GPL-2.0
3 * SME code for cfg80211
4 * both driver SME event handling and the SME implementation
5 * (for nl80211's connect() and wext)
7 * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
8 * Copyright (C) 2009, 2020, 2022 Intel Corporation. All rights reserved.
9 * Copyright 2017 Intel Deutschland GmbH
12 #include <linux/etherdevice.h>
13 #include <linux/if_arp.h>
14 #include <linux/slab.h>
15 #include <linux/workqueue.h>
16 #include <linux/wireless.h>
17 #include <linux/export.h>
18 #include <net/iw_handler.h>
19 #include <net/cfg80211.h>
20 #include <net/rtnetlink.h>
26 * Software SME in cfg80211, using auth/assoc/deauth calls to the
27 * driver. This is for implementing nl80211's connect/disconnect
28 * and wireless extensions (if configured.)
31 struct cfg80211_conn {
32 struct cfg80211_connect_params params;
33 /* these are sub-states of the _CONNECTING sme_state */
35 CFG80211_CONN_SCANNING,
36 CFG80211_CONN_SCAN_AGAIN,
37 CFG80211_CONN_AUTHENTICATE_NEXT,
38 CFG80211_CONN_AUTHENTICATING,
39 CFG80211_CONN_AUTH_FAILED_TIMEOUT,
40 CFG80211_CONN_ASSOCIATE_NEXT,
41 CFG80211_CONN_ASSOCIATING,
42 CFG80211_CONN_ASSOC_FAILED,
43 CFG80211_CONN_ASSOC_FAILED_TIMEOUT,
45 CFG80211_CONN_ABANDON,
46 CFG80211_CONN_CONNECTED,
48 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
51 bool auto_auth, prev_bssid_valid;
54 static void cfg80211_sme_free(struct wireless_dev *wdev)
59 kfree(wdev->conn->ie);
64 static int cfg80211_conn_scan(struct wireless_dev *wdev)
66 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
67 struct cfg80211_scan_request *request;
70 ASSERT_WDEV_LOCK(wdev);
72 if (rdev->scan_req || rdev->scan_msg)
75 if (wdev->conn->params.channel)
78 n_channels = ieee80211_get_num_supported_channels(wdev->wiphy);
80 request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) +
81 sizeof(request->channels[0]) * n_channels,
86 if (wdev->conn->params.channel) {
87 enum nl80211_band band = wdev->conn->params.channel->band;
88 struct ieee80211_supported_band *sband =
89 wdev->wiphy->bands[band];
95 request->channels[0] = wdev->conn->params.channel;
96 request->rates[band] = (1 << sband->n_bitrates) - 1;
99 enum nl80211_band band;
100 struct ieee80211_supported_band *bands;
101 struct ieee80211_channel *channel;
103 for (band = 0; band < NUM_NL80211_BANDS; band++) {
104 bands = wdev->wiphy->bands[band];
107 for (j = 0; j < bands->n_channels; j++) {
108 channel = &bands->channels[j];
109 if (channel->flags & IEEE80211_CHAN_DISABLED)
111 request->channels[i++] = channel;
113 request->rates[band] = (1 << bands->n_bitrates) - 1;
117 request->n_channels = n_channels;
118 request->ssids = (void *)&request->channels[n_channels];
119 request->n_ssids = 1;
121 memcpy(request->ssids[0].ssid, wdev->conn->params.ssid,
122 wdev->conn->params.ssid_len);
123 request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
125 eth_broadcast_addr(request->bssid);
127 request->wdev = wdev;
128 request->wiphy = &rdev->wiphy;
129 request->scan_start = jiffies;
131 rdev->scan_req = request;
133 err = rdev_scan(rdev, request);
135 wdev->conn->state = CFG80211_CONN_SCANNING;
136 nl80211_send_scan_start(rdev, wdev);
137 dev_hold(wdev->netdev);
139 rdev->scan_req = NULL;
145 static int cfg80211_conn_do_work(struct wireless_dev *wdev,
146 enum nl80211_timeout_reason *treason)
148 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
149 struct cfg80211_connect_params *params;
150 struct cfg80211_auth_request auth_req = {};
151 struct cfg80211_assoc_request req = {};
154 ASSERT_WDEV_LOCK(wdev);
159 params = &wdev->conn->params;
161 switch (wdev->conn->state) {
162 case CFG80211_CONN_SCANNING:
163 /* didn't find it during scan ... */
165 case CFG80211_CONN_SCAN_AGAIN:
166 return cfg80211_conn_scan(wdev);
167 case CFG80211_CONN_AUTHENTICATE_NEXT:
168 if (WARN_ON(!rdev->ops->auth))
170 wdev->conn->state = CFG80211_CONN_AUTHENTICATING;
171 auth_req.key = params->key;
172 auth_req.key_len = params->key_len;
173 auth_req.key_idx = params->key_idx;
174 auth_req.auth_type = params->auth_type;
175 auth_req.bss = cfg80211_get_bss(&rdev->wiphy, params->channel,
177 params->ssid, params->ssid_len,
178 IEEE80211_BSS_TYPE_ESS,
179 IEEE80211_PRIVACY_ANY);
180 auth_req.link_id = -1;
181 err = cfg80211_mlme_auth(rdev, wdev->netdev, &auth_req);
182 cfg80211_put_bss(&rdev->wiphy, auth_req.bss);
184 case CFG80211_CONN_AUTH_FAILED_TIMEOUT:
185 *treason = NL80211_TIMEOUT_AUTH;
187 case CFG80211_CONN_ASSOCIATE_NEXT:
188 if (WARN_ON(!rdev->ops->assoc))
190 wdev->conn->state = CFG80211_CONN_ASSOCIATING;
191 if (wdev->conn->prev_bssid_valid)
192 req.prev_bssid = wdev->conn->prev_bssid;
194 req.ie_len = params->ie_len;
195 req.use_mfp = params->mfp != NL80211_MFP_NO;
196 req.crypto = params->crypto;
197 req.flags = params->flags;
198 req.ht_capa = params->ht_capa;
199 req.ht_capa_mask = params->ht_capa_mask;
200 req.vht_capa = params->vht_capa;
201 req.vht_capa_mask = params->vht_capa_mask;
204 req.bss = cfg80211_get_bss(&rdev->wiphy, params->channel,
206 params->ssid, params->ssid_len,
207 IEEE80211_BSS_TYPE_ESS,
208 IEEE80211_PRIVACY_ANY);
212 err = cfg80211_mlme_assoc(rdev, wdev->netdev, &req);
213 cfg80211_put_bss(&rdev->wiphy, req.bss);
217 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
219 WLAN_REASON_DEAUTH_LEAVING,
222 case CFG80211_CONN_ASSOC_FAILED_TIMEOUT:
223 *treason = NL80211_TIMEOUT_ASSOC;
225 case CFG80211_CONN_ASSOC_FAILED:
226 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
228 WLAN_REASON_DEAUTH_LEAVING, false);
230 case CFG80211_CONN_DEAUTH:
231 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
233 WLAN_REASON_DEAUTH_LEAVING, false);
235 case CFG80211_CONN_ABANDON:
236 /* free directly, disconnected event already sent */
237 cfg80211_sme_free(wdev);
244 void cfg80211_conn_work(struct work_struct *work)
246 struct cfg80211_registered_device *rdev =
247 container_of(work, struct cfg80211_registered_device, conn_work);
248 struct wireless_dev *wdev;
249 u8 bssid_buf[ETH_ALEN], *bssid = NULL;
250 enum nl80211_timeout_reason treason;
252 wiphy_lock(&rdev->wiphy);
254 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
259 if (!netif_running(wdev->netdev)) {
264 wdev->conn->state == CFG80211_CONN_CONNECTED) {
268 if (wdev->conn->params.bssid) {
269 memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
272 treason = NL80211_TIMEOUT_UNSPECIFIED;
273 if (cfg80211_conn_do_work(wdev, &treason)) {
274 struct cfg80211_connect_resp_params cr;
276 memset(&cr, 0, sizeof(cr));
278 cr.links[0].bssid = bssid;
279 cr.timeout_reason = treason;
280 __cfg80211_connect_result(wdev->netdev, &cr, false);
285 wiphy_unlock(&rdev->wiphy);
288 /* Returned bss is reference counted and must be cleaned up appropriately. */
289 static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
291 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
292 struct cfg80211_bss *bss;
294 ASSERT_WDEV_LOCK(wdev);
296 bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
297 wdev->conn->params.bssid,
298 wdev->conn->params.ssid,
299 wdev->conn->params.ssid_len,
301 IEEE80211_PRIVACY(wdev->conn->params.privacy));
305 memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN);
306 wdev->conn->params.bssid = wdev->conn->bssid;
307 wdev->conn->params.channel = bss->channel;
308 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
309 schedule_work(&rdev->conn_work);
314 static void __cfg80211_sme_scan_done(struct net_device *dev)
316 struct wireless_dev *wdev = dev->ieee80211_ptr;
317 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
318 struct cfg80211_bss *bss;
320 ASSERT_WDEV_LOCK(wdev);
325 if (wdev->conn->state != CFG80211_CONN_SCANNING &&
326 wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
329 bss = cfg80211_get_conn_bss(wdev);
331 cfg80211_put_bss(&rdev->wiphy, bss);
333 schedule_work(&rdev->conn_work);
336 void cfg80211_sme_scan_done(struct net_device *dev)
338 struct wireless_dev *wdev = dev->ieee80211_ptr;
341 __cfg80211_sme_scan_done(dev);
345 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len)
347 struct wiphy *wiphy = wdev->wiphy;
348 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
349 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
350 u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
352 ASSERT_WDEV_LOCK(wdev);
354 if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED)
357 if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
358 wdev->conn->auto_auth &&
359 wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
360 /* select automatically between only open, shared, leap */
361 switch (wdev->conn->params.auth_type) {
362 case NL80211_AUTHTYPE_OPEN_SYSTEM:
363 if (wdev->connect_keys)
364 wdev->conn->params.auth_type =
365 NL80211_AUTHTYPE_SHARED_KEY;
367 wdev->conn->params.auth_type =
368 NL80211_AUTHTYPE_NETWORK_EAP;
370 case NL80211_AUTHTYPE_SHARED_KEY:
371 wdev->conn->params.auth_type =
372 NL80211_AUTHTYPE_NETWORK_EAP;
376 wdev->conn->params.auth_type =
377 NL80211_AUTHTYPE_OPEN_SYSTEM;
380 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
381 schedule_work(&rdev->conn_work);
382 } else if (status_code != WLAN_STATUS_SUCCESS) {
383 struct cfg80211_connect_resp_params cr;
385 memset(&cr, 0, sizeof(cr));
386 cr.status = status_code;
387 cr.links[0].bssid = mgmt->bssid;
388 cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED;
389 __cfg80211_connect_result(wdev->netdev, &cr, false);
390 } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
391 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
392 schedule_work(&rdev->conn_work);
396 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status)
398 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
403 if (status == WLAN_STATUS_SUCCESS) {
404 wdev->conn->state = CFG80211_CONN_CONNECTED;
408 if (wdev->conn->prev_bssid_valid) {
410 * Some stupid APs don't accept reassoc, so we
411 * need to fall back to trying regular assoc;
412 * return true so no event is sent to userspace.
414 wdev->conn->prev_bssid_valid = false;
415 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
416 schedule_work(&rdev->conn_work);
420 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED;
421 schedule_work(&rdev->conn_work);
425 void cfg80211_sme_deauth(struct wireless_dev *wdev)
427 cfg80211_sme_free(wdev);
430 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev)
432 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
437 wdev->conn->state = CFG80211_CONN_AUTH_FAILED_TIMEOUT;
438 schedule_work(&rdev->conn_work);
441 void cfg80211_sme_disassoc(struct wireless_dev *wdev)
443 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
448 wdev->conn->state = CFG80211_CONN_DEAUTH;
449 schedule_work(&rdev->conn_work);
452 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev)
454 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
459 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED_TIMEOUT;
460 schedule_work(&rdev->conn_work);
463 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev)
465 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
470 wdev->conn->state = CFG80211_CONN_ABANDON;
471 schedule_work(&rdev->conn_work);
474 static void cfg80211_wdev_release_bsses(struct wireless_dev *wdev)
478 for_each_valid_link(wdev, link) {
479 if (!wdev->links[link].client.current_bss)
481 cfg80211_unhold_bss(wdev->links[link].client.current_bss);
482 cfg80211_put_bss(wdev->wiphy,
483 &wdev->links[link].client.current_bss->pub);
484 wdev->links[link].client.current_bss = NULL;
488 static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev,
489 const u8 *ies, size_t ies_len,
490 const u8 **out_ies, size_t *out_ies_len)
492 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
496 if (!rdev->wiphy.extended_capabilities_len ||
497 (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) {
498 *out_ies = kmemdup(ies, ies_len, GFP_KERNEL);
501 *out_ies_len = ies_len;
505 buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2,
511 static const u8 before_extcapa[] = {
512 /* not listing IEs expected to be created by driver */
515 WLAN_EID_RRM_ENABLED_CAPABILITIES,
516 WLAN_EID_MOBILITY_DOMAIN,
517 WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
518 WLAN_EID_BSS_COEX_2040,
521 offs = ieee80211_ie_split(ies, ies_len, before_extcapa,
522 ARRAY_SIZE(before_extcapa), 0);
523 memcpy(buf, ies, offs);
524 /* leave a whole for extended capabilities IE */
525 memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2,
526 ies + offs, ies_len - offs);
531 /* place extended capabilities IE (with only driver capabilities) */
532 buf[offs] = WLAN_EID_EXT_CAPABILITY;
533 buf[offs + 1] = rdev->wiphy.extended_capabilities_len;
534 memcpy(buf + offs + 2,
535 rdev->wiphy.extended_capabilities,
536 rdev->wiphy.extended_capabilities_len);
539 *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2;
544 static int cfg80211_sme_connect(struct wireless_dev *wdev,
545 struct cfg80211_connect_params *connect,
546 const u8 *prev_bssid)
548 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
549 struct cfg80211_bss *bss;
552 if (!rdev->ops->auth || !rdev->ops->assoc)
555 cfg80211_wdev_release_bsses(wdev);
557 if (wdev->connected) {
558 cfg80211_sme_free(wdev);
559 wdev->connected = false;
565 wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
570 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
572 memcpy(&wdev->conn->params, connect, sizeof(*connect));
573 if (connect->bssid) {
574 wdev->conn->params.bssid = wdev->conn->bssid;
575 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
578 if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len,
580 &wdev->conn->params.ie_len)) {
585 wdev->conn->params.ie = wdev->conn->ie;
587 if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
588 wdev->conn->auto_auth = true;
589 /* start with open system ... should mostly work */
590 wdev->conn->params.auth_type =
591 NL80211_AUTHTYPE_OPEN_SYSTEM;
593 wdev->conn->auto_auth = false;
596 wdev->conn->params.ssid = wdev->u.client.ssid;
597 wdev->conn->params.ssid_len = wdev->u.client.ssid_len;
599 /* see if we have the bss already */
600 bss = cfg80211_get_conn_bss(wdev);
603 memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
604 wdev->conn->prev_bssid_valid = true;
607 /* we're good if we have a matching bss struct */
609 enum nl80211_timeout_reason treason;
611 err = cfg80211_conn_do_work(wdev, &treason);
612 cfg80211_put_bss(wdev->wiphy, bss);
614 /* otherwise we'll need to scan for the AP first */
615 err = cfg80211_conn_scan(wdev);
618 * If we can't scan right now, then we need to scan again
619 * after the current scan finished, since the parameters
620 * changed (unless we find a good AP anyway).
624 wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
629 cfg80211_sme_free(wdev);
634 static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason)
636 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
642 if (!rdev->ops->deauth)
645 if (wdev->conn->state == CFG80211_CONN_SCANNING ||
646 wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) {
651 /* wdev->conn->params.bssid must be set if > SCANNING */
652 err = cfg80211_mlme_deauth(rdev, wdev->netdev,
653 wdev->conn->params.bssid,
654 NULL, 0, reason, false);
656 cfg80211_sme_free(wdev);
661 * code shared for in-device and software SME
664 static bool cfg80211_is_all_idle(void)
666 struct cfg80211_registered_device *rdev;
667 struct wireless_dev *wdev;
668 bool is_all_idle = true;
671 * All devices must be idle as otherwise if you are actively
672 * scanning some new beacon hints could be learned and would
673 * count as new regulatory hints.
674 * Also if there is any other active beaconing interface we
675 * need not issue a disconnect hint and reset any info such
676 * as chan dfs state, etc.
678 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
679 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
681 if (wdev->conn || wdev->connected ||
682 cfg80211_beaconing_iface_active(wdev))
691 static void disconnect_work(struct work_struct *work)
694 if (cfg80211_is_all_idle())
695 regulatory_hint_disconnect();
699 DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
702 cfg80211_connect_result_release_bsses(struct wireless_dev *wdev,
703 struct cfg80211_connect_resp_params *cr)
707 for_each_valid_link(cr, link) {
708 if (!cr->links[link].bss)
710 cfg80211_unhold_bss(bss_from_pub(cr->links[link].bss));
711 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
716 * API calls for drivers implementing connect/disconnect and
720 /* This method must consume bss one way or another */
721 void __cfg80211_connect_result(struct net_device *dev,
722 struct cfg80211_connect_resp_params *cr,
725 struct wireless_dev *wdev = dev->ieee80211_ptr;
726 const struct element *country_elem = NULL;
727 const u8 *country_data;
729 #ifdef CONFIG_CFG80211_WEXT
730 union iwreq_data wrqu;
733 const u8 *connected_addr;
734 bool bss_not_found = false;
736 ASSERT_WDEV_LOCK(wdev);
738 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
739 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
742 if (cr->valid_links) {
743 if (WARN_ON(!cr->ap_mld_addr))
746 for_each_valid_link(cr, link) {
747 if (WARN_ON(!cr->links[link].addr))
751 if (WARN_ON(wdev->connect_keys))
755 wdev->unprot_beacon_reported = 0;
756 nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr,
758 connected_addr = cr->valid_links ? cr->ap_mld_addr : cr->links[0].bssid;
760 #ifdef CONFIG_CFG80211_WEXT
761 if (wextev && !cr->valid_links) {
762 if (cr->req_ie && cr->status == WLAN_STATUS_SUCCESS) {
763 memset(&wrqu, 0, sizeof(wrqu));
764 wrqu.data.length = cr->req_ie_len;
765 wireless_send_event(dev, IWEVASSOCREQIE, &wrqu,
769 if (cr->resp_ie && cr->status == WLAN_STATUS_SUCCESS) {
770 memset(&wrqu, 0, sizeof(wrqu));
771 wrqu.data.length = cr->resp_ie_len;
772 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu,
776 memset(&wrqu, 0, sizeof(wrqu));
777 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
778 if (connected_addr && cr->status == WLAN_STATUS_SUCCESS) {
779 memcpy(wrqu.ap_addr.sa_data, connected_addr, ETH_ALEN);
780 memcpy(wdev->wext.prev_bssid, connected_addr, ETH_ALEN);
781 wdev->wext.prev_bssid_valid = true;
783 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
787 if (cr->status == WLAN_STATUS_SUCCESS) {
788 if (!wiphy_to_rdev(wdev->wiphy)->ops->connect) {
789 for_each_valid_link(cr, link) {
790 if (WARN_ON_ONCE(!cr->links[link].bss))
795 for_each_valid_link(cr, link) {
796 /* don't do extra lookups for failures */
797 if (cr->links[link].status != WLAN_STATUS_SUCCESS)
800 if (cr->links[link].bss)
803 cr->links[link].bss =
804 cfg80211_get_bss(wdev->wiphy, NULL,
805 cr->links[link].bssid,
807 wdev->u.client.ssid_len,
809 IEEE80211_PRIVACY_ANY);
810 if (!cr->links[link].bss) {
811 bss_not_found = true;
814 cfg80211_hold_bss(bss_from_pub(cr->links[link].bss));
818 cfg80211_wdev_release_bsses(wdev);
820 if (cr->status != WLAN_STATUS_SUCCESS) {
821 kfree_sensitive(wdev->connect_keys);
822 wdev->connect_keys = NULL;
823 wdev->u.client.ssid_len = 0;
824 wdev->conn_owner_nlportid = 0;
825 cfg80211_connect_result_release_bsses(wdev, cr);
826 cfg80211_sme_free(wdev);
830 if (WARN_ON(bss_not_found)) {
831 cfg80211_connect_result_release_bsses(wdev, cr);
835 memset(wdev->links, 0, sizeof(wdev->links));
836 for_each_valid_link(cr, link) {
837 if (cr->links[link].status == WLAN_STATUS_SUCCESS)
839 cr->valid_links &= ~BIT(link);
840 /* don't require bss pointer for failed links */
841 if (!cr->links[link].bss)
843 cfg80211_unhold_bss(bss_from_pub(cr->links[link].bss));
844 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
846 wdev->valid_links = cr->valid_links;
847 for_each_valid_link(cr, link)
848 wdev->links[link].client.current_bss =
849 bss_from_pub(cr->links[link].bss);
850 wdev->connected = true;
851 ether_addr_copy(wdev->u.client.connected_addr, connected_addr);
852 if (cr->valid_links) {
853 for_each_valid_link(cr, link)
854 memcpy(wdev->links[link].addr, cr->links[link].addr,
858 if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP))
859 cfg80211_upload_connect_keys(wdev);
862 for_each_valid_link(cr, link) {
864 ieee80211_bss_get_elem(cr->links[link].bss,
874 country_datalen = country_elem->datalen;
875 country_data = kmemdup(country_elem->data, country_datalen, GFP_ATOMIC);
881 regulatory_hint_country_ie(wdev->wiphy,
882 cr->links[link].bss->channel->band,
883 country_data, country_datalen);
888 for_each_valid_link(cr, link)
889 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
892 static void cfg80211_update_link_bss(struct wireless_dev *wdev,
893 struct cfg80211_bss **bss)
895 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
896 struct cfg80211_internal_bss *ibss;
901 ibss = bss_from_pub(*bss);
902 if (list_empty(&ibss->list)) {
903 struct cfg80211_bss *found = NULL, *tmp = *bss;
905 found = cfg80211_get_bss(wdev->wiphy, NULL,
908 wdev->u.client.ssid_len,
910 IEEE80211_PRIVACY_ANY);
912 /* The same BSS is already updated so use it
913 * instead, as it has latest info.
917 /* Update with BSS provided by driver, it will
918 * be freshly added and ref cnted, we can free
921 * signal_valid can be false, as we are not
922 * expecting the BSS to be found.
924 * keep the old timestamp to avoid confusion
926 cfg80211_bss_update(rdev, ibss, false,
930 cfg80211_put_bss(wdev->wiphy, tmp);
934 /* Consumes bss object(s) one way or another */
935 void cfg80211_connect_done(struct net_device *dev,
936 struct cfg80211_connect_resp_params *params,
939 struct wireless_dev *wdev = dev->ieee80211_ptr;
940 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
941 struct cfg80211_event *ev;
944 size_t link_info_size = 0;
947 for_each_valid_link(params, link) {
948 cfg80211_update_link_bss(wdev, ¶ms->links[link].bss);
949 link_info_size += params->links[link].bssid ? ETH_ALEN : 0;
950 link_info_size += params->links[link].addr ? ETH_ALEN : 0;
953 ev = kzalloc(sizeof(*ev) + (params->ap_mld_addr ? ETH_ALEN : 0) +
954 params->req_ie_len + params->resp_ie_len +
955 params->fils.kek_len + params->fils.pmk_len +
956 (params->fils.pmkid ? WLAN_PMKID_LEN : 0) + link_info_size,
960 for_each_valid_link(params, link)
961 cfg80211_put_bss(wdev->wiphy,
962 params->links[link].bss);
966 ev->type = EVENT_CONNECT_RESULT;
967 next = ((u8 *)ev) + sizeof(*ev);
968 if (params->ap_mld_addr) {
969 ev->cr.ap_mld_addr = next;
970 memcpy((void *)ev->cr.ap_mld_addr, params->ap_mld_addr,
974 if (params->req_ie_len) {
975 ev->cr.req_ie = next;
976 ev->cr.req_ie_len = params->req_ie_len;
977 memcpy((void *)ev->cr.req_ie, params->req_ie,
979 next += params->req_ie_len;
981 if (params->resp_ie_len) {
982 ev->cr.resp_ie = next;
983 ev->cr.resp_ie_len = params->resp_ie_len;
984 memcpy((void *)ev->cr.resp_ie, params->resp_ie,
985 params->resp_ie_len);
986 next += params->resp_ie_len;
988 if (params->fils.kek_len) {
989 ev->cr.fils.kek = next;
990 ev->cr.fils.kek_len = params->fils.kek_len;
991 memcpy((void *)ev->cr.fils.kek, params->fils.kek,
992 params->fils.kek_len);
993 next += params->fils.kek_len;
995 if (params->fils.pmk_len) {
996 ev->cr.fils.pmk = next;
997 ev->cr.fils.pmk_len = params->fils.pmk_len;
998 memcpy((void *)ev->cr.fils.pmk, params->fils.pmk,
999 params->fils.pmk_len);
1000 next += params->fils.pmk_len;
1002 if (params->fils.pmkid) {
1003 ev->cr.fils.pmkid = next;
1004 memcpy((void *)ev->cr.fils.pmkid, params->fils.pmkid,
1006 next += WLAN_PMKID_LEN;
1008 ev->cr.fils.update_erp_next_seq_num = params->fils.update_erp_next_seq_num;
1009 if (params->fils.update_erp_next_seq_num)
1010 ev->cr.fils.erp_next_seq_num = params->fils.erp_next_seq_num;
1011 ev->cr.valid_links = params->valid_links;
1012 for_each_valid_link(params, link) {
1013 if (params->links[link].bss)
1015 bss_from_pub(params->links[link].bss));
1016 ev->cr.links[link].bss = params->links[link].bss;
1018 if (params->links[link].addr) {
1019 ev->cr.links[link].addr = next;
1020 memcpy((void *)ev->cr.links[link].addr,
1021 params->links[link].addr,
1025 if (params->links[link].bssid) {
1026 ev->cr.links[link].bssid = next;
1027 memcpy((void *)ev->cr.links[link].bssid,
1028 params->links[link].bssid,
1033 ev->cr.status = params->status;
1034 ev->cr.timeout_reason = params->timeout_reason;
1036 spin_lock_irqsave(&wdev->event_lock, flags);
1037 list_add_tail(&ev->list, &wdev->event_list);
1038 spin_unlock_irqrestore(&wdev->event_lock, flags);
1039 queue_work(cfg80211_wq, &rdev->event_work);
1041 EXPORT_SYMBOL(cfg80211_connect_done);
1043 /* Consumes bss object one way or another */
1044 void __cfg80211_roamed(struct wireless_dev *wdev,
1045 struct cfg80211_roam_info *info)
1047 #ifdef CONFIG_CFG80211_WEXT
1048 union iwreq_data wrqu;
1051 const u8 *connected_addr;
1053 ASSERT_WDEV_LOCK(wdev);
1055 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1056 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1059 if (WARN_ON(!wdev->connected))
1062 if (info->valid_links) {
1063 if (WARN_ON(!info->ap_mld_addr))
1066 for_each_valid_link(info, link) {
1067 if (WARN_ON(!info->links[link].addr))
1072 cfg80211_wdev_release_bsses(wdev);
1074 for_each_valid_link(info, link) {
1075 if (WARN_ON(!info->links[link].bss))
1079 memset(wdev->links, 0, sizeof(wdev->links));
1080 wdev->valid_links = info->valid_links;
1081 for_each_valid_link(info, link) {
1082 cfg80211_hold_bss(bss_from_pub(info->links[link].bss));
1083 wdev->links[link].client.current_bss =
1084 bss_from_pub(info->links[link].bss);
1087 connected_addr = info->valid_links ?
1089 info->links[0].bss->bssid;
1090 ether_addr_copy(wdev->u.client.connected_addr, connected_addr);
1091 if (info->valid_links) {
1092 for_each_valid_link(info, link)
1093 memcpy(wdev->links[link].addr, info->links[link].addr,
1096 wdev->unprot_beacon_reported = 0;
1097 nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy),
1098 wdev->netdev, info, GFP_KERNEL);
1100 #ifdef CONFIG_CFG80211_WEXT
1101 if (!info->valid_links) {
1103 memset(&wrqu, 0, sizeof(wrqu));
1104 wrqu.data.length = info->req_ie_len;
1105 wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
1106 &wrqu, info->req_ie);
1109 if (info->resp_ie) {
1110 memset(&wrqu, 0, sizeof(wrqu));
1111 wrqu.data.length = info->resp_ie_len;
1112 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
1113 &wrqu, info->resp_ie);
1116 memset(&wrqu, 0, sizeof(wrqu));
1117 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1118 memcpy(wrqu.ap_addr.sa_data, connected_addr, ETH_ALEN);
1119 memcpy(wdev->wext.prev_bssid, connected_addr, ETH_ALEN);
1120 wdev->wext.prev_bssid_valid = true;
1121 wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
1127 for_each_valid_link(info, link)
1128 cfg80211_put_bss(wdev->wiphy, info->links[link].bss);
1131 /* Consumes info->links.bss object(s) one way or another */
1132 void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
1135 struct wireless_dev *wdev = dev->ieee80211_ptr;
1136 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1137 struct cfg80211_event *ev;
1138 unsigned long flags;
1141 size_t link_info_size = 0;
1142 bool bss_not_found = false;
1144 for_each_valid_link(info, link) {
1145 link_info_size += info->links[link].addr ? ETH_ALEN : 0;
1146 link_info_size += info->links[link].bssid ? ETH_ALEN : 0;
1148 if (info->links[link].bss)
1151 info->links[link].bss =
1152 cfg80211_get_bss(wdev->wiphy,
1153 info->links[link].channel,
1154 info->links[link].bssid,
1155 wdev->u.client.ssid,
1156 wdev->u.client.ssid_len,
1157 wdev->conn_bss_type,
1158 IEEE80211_PRIVACY_ANY);
1160 if (!info->links[link].bss) {
1161 bss_not_found = true;
1166 if (WARN_ON(bss_not_found))
1169 ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len +
1170 info->fils.kek_len + info->fils.pmk_len +
1171 (info->fils.pmkid ? WLAN_PMKID_LEN : 0) +
1172 (info->ap_mld_addr ? ETH_ALEN : 0) + link_info_size, gfp);
1176 ev->type = EVENT_ROAMED;
1177 next = ((u8 *)ev) + sizeof(*ev);
1178 if (info->req_ie_len) {
1179 ev->rm.req_ie = next;
1180 ev->rm.req_ie_len = info->req_ie_len;
1181 memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len);
1182 next += info->req_ie_len;
1184 if (info->resp_ie_len) {
1185 ev->rm.resp_ie = next;
1186 ev->rm.resp_ie_len = info->resp_ie_len;
1187 memcpy((void *)ev->rm.resp_ie, info->resp_ie,
1189 next += info->resp_ie_len;
1191 if (info->fils.kek_len) {
1192 ev->rm.fils.kek = next;
1193 ev->rm.fils.kek_len = info->fils.kek_len;
1194 memcpy((void *)ev->rm.fils.kek, info->fils.kek,
1195 info->fils.kek_len);
1196 next += info->fils.kek_len;
1198 if (info->fils.pmk_len) {
1199 ev->rm.fils.pmk = next;
1200 ev->rm.fils.pmk_len = info->fils.pmk_len;
1201 memcpy((void *)ev->rm.fils.pmk, info->fils.pmk,
1202 info->fils.pmk_len);
1203 next += info->fils.pmk_len;
1205 if (info->fils.pmkid) {
1206 ev->rm.fils.pmkid = next;
1207 memcpy((void *)ev->rm.fils.pmkid, info->fils.pmkid,
1209 next += WLAN_PMKID_LEN;
1211 ev->rm.fils.update_erp_next_seq_num = info->fils.update_erp_next_seq_num;
1212 if (info->fils.update_erp_next_seq_num)
1213 ev->rm.fils.erp_next_seq_num = info->fils.erp_next_seq_num;
1214 if (info->ap_mld_addr) {
1215 ev->rm.ap_mld_addr = next;
1216 memcpy((void *)ev->rm.ap_mld_addr, info->ap_mld_addr,
1220 ev->rm.valid_links = info->valid_links;
1221 for_each_valid_link(info, link) {
1222 ev->rm.links[link].bss = info->links[link].bss;
1224 if (info->links[link].addr) {
1225 ev->rm.links[link].addr = next;
1226 memcpy((void *)ev->rm.links[link].addr,
1227 info->links[link].addr,
1232 if (info->links[link].bssid) {
1233 ev->rm.links[link].bssid = next;
1234 memcpy((void *)ev->rm.links[link].bssid,
1235 info->links[link].bssid,
1241 spin_lock_irqsave(&wdev->event_lock, flags);
1242 list_add_tail(&ev->list, &wdev->event_list);
1243 spin_unlock_irqrestore(&wdev->event_lock, flags);
1244 queue_work(cfg80211_wq, &rdev->event_work);
1248 for_each_valid_link(info, link)
1249 cfg80211_put_bss(wdev->wiphy, info->links[link].bss);
1252 EXPORT_SYMBOL(cfg80211_roamed);
1254 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid,
1255 const u8 *td_bitmap, u8 td_bitmap_len)
1257 ASSERT_WDEV_LOCK(wdev);
1259 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1260 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1263 if (WARN_ON(!wdev->connected) ||
1264 WARN_ON(!ether_addr_equal(wdev->u.client.connected_addr, bssid)))
1267 nl80211_send_port_authorized(wiphy_to_rdev(wdev->wiphy), wdev->netdev,
1268 bssid, td_bitmap, td_bitmap_len);
1271 void cfg80211_port_authorized(struct net_device *dev, const u8 *bssid,
1272 const u8 *td_bitmap, u8 td_bitmap_len, gfp_t gfp)
1274 struct wireless_dev *wdev = dev->ieee80211_ptr;
1275 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1276 struct cfg80211_event *ev;
1277 unsigned long flags;
1279 if (WARN_ON(!bssid))
1282 ev = kzalloc(sizeof(*ev) + td_bitmap_len, gfp);
1286 ev->type = EVENT_PORT_AUTHORIZED;
1287 memcpy(ev->pa.bssid, bssid, ETH_ALEN);
1288 ev->pa.td_bitmap = ((u8 *)ev) + sizeof(*ev);
1289 ev->pa.td_bitmap_len = td_bitmap_len;
1290 memcpy((void *)ev->pa.td_bitmap, td_bitmap, td_bitmap_len);
1293 * Use the wdev event list so that if there are pending
1294 * connected/roamed events, they will be reported first.
1296 spin_lock_irqsave(&wdev->event_lock, flags);
1297 list_add_tail(&ev->list, &wdev->event_list);
1298 spin_unlock_irqrestore(&wdev->event_lock, flags);
1299 queue_work(cfg80211_wq, &rdev->event_work);
1301 EXPORT_SYMBOL(cfg80211_port_authorized);
1303 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
1304 size_t ie_len, u16 reason, bool from_ap)
1306 struct wireless_dev *wdev = dev->ieee80211_ptr;
1307 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1309 #ifdef CONFIG_CFG80211_WEXT
1310 union iwreq_data wrqu;
1313 ASSERT_WDEV_LOCK(wdev);
1315 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1316 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1319 cfg80211_wdev_release_bsses(wdev);
1320 wdev->connected = false;
1321 wdev->u.client.ssid_len = 0;
1322 wdev->conn_owner_nlportid = 0;
1323 kfree_sensitive(wdev->connect_keys);
1324 wdev->connect_keys = NULL;
1326 nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
1328 /* stop critical protocol if supported */
1329 if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) {
1330 rdev->crit_proto_nlportid = 0;
1331 rdev_crit_proto_stop(rdev, wdev);
1335 * Delete all the keys ... pairwise keys can't really
1336 * exist any more anyway, but default keys might.
1338 if (rdev->ops->del_key) {
1339 int max_key_idx = 5;
1341 if (wiphy_ext_feature_isset(
1343 NL80211_EXT_FEATURE_BEACON_PROTECTION) ||
1344 wiphy_ext_feature_isset(
1346 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT))
1348 for (i = 0; i <= max_key_idx; i++)
1349 rdev_del_key(rdev, dev, -1, i, false, NULL);
1352 rdev_set_qos_map(rdev, dev, NULL);
1354 #ifdef CONFIG_CFG80211_WEXT
1355 memset(&wrqu, 0, sizeof(wrqu));
1356 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1357 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1358 wdev->wext.connect.ssid_len = 0;
1361 schedule_work(&cfg80211_disconnect_work);
1364 void cfg80211_disconnected(struct net_device *dev, u16 reason,
1365 const u8 *ie, size_t ie_len,
1366 bool locally_generated, gfp_t gfp)
1368 struct wireless_dev *wdev = dev->ieee80211_ptr;
1369 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1370 struct cfg80211_event *ev;
1371 unsigned long flags;
1373 ev = kzalloc(sizeof(*ev) + ie_len, gfp);
1377 ev->type = EVENT_DISCONNECTED;
1378 ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
1379 ev->dc.ie_len = ie_len;
1380 memcpy((void *)ev->dc.ie, ie, ie_len);
1381 ev->dc.reason = reason;
1382 ev->dc.locally_generated = locally_generated;
1384 spin_lock_irqsave(&wdev->event_lock, flags);
1385 list_add_tail(&ev->list, &wdev->event_list);
1386 spin_unlock_irqrestore(&wdev->event_lock, flags);
1387 queue_work(cfg80211_wq, &rdev->event_work);
1389 EXPORT_SYMBOL(cfg80211_disconnected);
1392 * API calls for nl80211/wext compatibility code
1394 int cfg80211_connect(struct cfg80211_registered_device *rdev,
1395 struct net_device *dev,
1396 struct cfg80211_connect_params *connect,
1397 struct cfg80211_cached_keys *connkeys,
1398 const u8 *prev_bssid)
1400 struct wireless_dev *wdev = dev->ieee80211_ptr;
1403 ASSERT_WDEV_LOCK(wdev);
1406 * If we have an ssid_len, we're trying to connect or are
1407 * already connected, so reject a new SSID unless it's the
1408 * same (which is the case for re-association.)
1410 if (wdev->u.client.ssid_len &&
1411 (wdev->u.client.ssid_len != connect->ssid_len ||
1412 memcmp(wdev->u.client.ssid, connect->ssid, wdev->u.client.ssid_len)))
1416 * If connected, reject (re-)association unless prev_bssid
1417 * matches the current BSSID.
1419 if (wdev->connected) {
1422 if (!ether_addr_equal(prev_bssid,
1423 wdev->u.client.connected_addr))
1428 * Reject if we're in the process of connecting with WEP,
1429 * this case isn't very interesting and trying to handle
1430 * it would make the code much more complex.
1432 if (wdev->connect_keys)
1433 return -EINPROGRESS;
1435 cfg80211_oper_and_ht_capa(&connect->ht_capa_mask,
1436 rdev->wiphy.ht_capa_mod_mask);
1437 cfg80211_oper_and_vht_capa(&connect->vht_capa_mask,
1438 rdev->wiphy.vht_capa_mod_mask);
1440 if (connkeys && connkeys->def >= 0) {
1444 idx = connkeys->def;
1445 cipher = connkeys->params[idx].cipher;
1446 /* If given a WEP key we may need it for shared key auth */
1447 if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
1448 cipher == WLAN_CIPHER_SUITE_WEP104) {
1449 connect->key_idx = idx;
1450 connect->key = connkeys->params[idx].key;
1451 connect->key_len = connkeys->params[idx].key_len;
1454 * If ciphers are not set (e.g. when going through
1455 * iwconfig), we have to set them appropriately here.
1457 if (connect->crypto.cipher_group == 0)
1458 connect->crypto.cipher_group = cipher;
1460 if (connect->crypto.n_ciphers_pairwise == 0) {
1461 connect->crypto.n_ciphers_pairwise = 1;
1462 connect->crypto.ciphers_pairwise[0] = cipher;
1466 connect->crypto.wep_keys = connkeys->params;
1467 connect->crypto.wep_tx_key = connkeys->def;
1469 if (WARN_ON(connkeys))
1473 wdev->connect_keys = connkeys;
1474 memcpy(wdev->u.client.ssid, connect->ssid, connect->ssid_len);
1475 wdev->u.client.ssid_len = connect->ssid_len;
1477 wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS :
1478 IEEE80211_BSS_TYPE_ESS;
1480 if (!rdev->ops->connect)
1481 err = cfg80211_sme_connect(wdev, connect, prev_bssid);
1483 err = rdev_connect(rdev, dev, connect);
1486 wdev->connect_keys = NULL;
1488 * This could be reassoc getting refused, don't clear
1489 * ssid_len in that case.
1491 if (!wdev->connected)
1492 wdev->u.client.ssid_len = 0;
1499 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
1500 struct net_device *dev, u16 reason, bool wextev)
1502 struct wireless_dev *wdev = dev->ieee80211_ptr;
1505 ASSERT_WDEV_LOCK(wdev);
1507 kfree_sensitive(wdev->connect_keys);
1508 wdev->connect_keys = NULL;
1510 wdev->conn_owner_nlportid = 0;
1513 err = cfg80211_sme_disconnect(wdev, reason);
1514 else if (!rdev->ops->disconnect)
1515 cfg80211_mlme_down(rdev, dev);
1516 else if (wdev->u.client.ssid_len)
1517 err = rdev_disconnect(rdev, dev, reason);
1520 * Clear ssid_len unless we actually were fully connected,
1521 * in which case cfg80211_disconnected() will take care of
1524 if (!wdev->connected)
1525 wdev->u.client.ssid_len = 0;
1531 * Used to clean up after the connection / connection attempt owner socket
1534 void cfg80211_autodisconnect_wk(struct work_struct *work)
1536 struct wireless_dev *wdev =
1537 container_of(work, struct wireless_dev, disconnect_wk);
1538 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1542 if (wdev->conn_owner_nlportid) {
1543 switch (wdev->iftype) {
1544 case NL80211_IFTYPE_ADHOC:
1545 __cfg80211_leave_ibss(rdev, wdev->netdev, false);
1547 case NL80211_IFTYPE_AP:
1548 case NL80211_IFTYPE_P2P_GO:
1549 __cfg80211_stop_ap(rdev, wdev->netdev, -1, false);
1551 case NL80211_IFTYPE_MESH_POINT:
1552 __cfg80211_leave_mesh(rdev, wdev->netdev);
1554 case NL80211_IFTYPE_STATION:
1555 case NL80211_IFTYPE_P2P_CLIENT:
1557 * Use disconnect_bssid if still connecting and
1558 * ops->disconnect not implemented. Otherwise we can
1559 * use cfg80211_disconnect.
1561 if (rdev->ops->disconnect || wdev->connected)
1562 cfg80211_disconnect(rdev, wdev->netdev,
1563 WLAN_REASON_DEAUTH_LEAVING,
1566 cfg80211_mlme_deauth(rdev, wdev->netdev,
1567 wdev->disconnect_bssid,
1569 WLAN_REASON_DEAUTH_LEAVING,