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,
214 cfg80211_put_bss(&rdev->wiphy, req.bss);
218 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
220 WLAN_REASON_DEAUTH_LEAVING,
223 case CFG80211_CONN_ASSOC_FAILED_TIMEOUT:
224 *treason = NL80211_TIMEOUT_ASSOC;
226 case CFG80211_CONN_ASSOC_FAILED:
227 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
229 WLAN_REASON_DEAUTH_LEAVING, false);
231 case CFG80211_CONN_DEAUTH:
232 cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid,
234 WLAN_REASON_DEAUTH_LEAVING, false);
236 case CFG80211_CONN_ABANDON:
237 /* free directly, disconnected event already sent */
238 cfg80211_sme_free(wdev);
245 void cfg80211_conn_work(struct work_struct *work)
247 struct cfg80211_registered_device *rdev =
248 container_of(work, struct cfg80211_registered_device, conn_work);
249 struct wireless_dev *wdev;
250 u8 bssid_buf[ETH_ALEN], *bssid = NULL;
251 enum nl80211_timeout_reason treason;
253 wiphy_lock(&rdev->wiphy);
255 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
259 if (!netif_running(wdev->netdev))
263 wdev->conn->state == CFG80211_CONN_CONNECTED)
266 if (wdev->conn->params.bssid) {
267 memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
270 treason = NL80211_TIMEOUT_UNSPECIFIED;
271 if (cfg80211_conn_do_work(wdev, &treason)) {
272 struct cfg80211_connect_resp_params cr;
274 memset(&cr, 0, sizeof(cr));
276 cr.links[0].bssid = bssid;
277 cr.timeout_reason = treason;
278 __cfg80211_connect_result(wdev->netdev, &cr, false);
282 wiphy_unlock(&rdev->wiphy);
285 static void cfg80211_step_auth_next(struct cfg80211_conn *conn,
286 struct cfg80211_bss *bss)
288 memcpy(conn->bssid, bss->bssid, ETH_ALEN);
289 conn->params.bssid = conn->bssid;
290 conn->params.channel = bss->channel;
291 conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
294 /* Returned bss is reference counted and must be cleaned up appropriately. */
295 static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
297 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
298 struct cfg80211_bss *bss;
300 lockdep_assert_wiphy(wdev->wiphy);
302 bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
303 wdev->conn->params.bssid,
304 wdev->conn->params.ssid,
305 wdev->conn->params.ssid_len,
307 IEEE80211_PRIVACY(wdev->conn->params.privacy));
311 cfg80211_step_auth_next(wdev->conn, bss);
312 schedule_work(&rdev->conn_work);
317 void cfg80211_sme_scan_done(struct net_device *dev)
319 struct wireless_dev *wdev = dev->ieee80211_ptr;
320 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
321 struct cfg80211_bss *bss;
323 lockdep_assert_wiphy(wdev->wiphy);
328 if (wdev->conn->state != CFG80211_CONN_SCANNING &&
329 wdev->conn->state != CFG80211_CONN_SCAN_AGAIN)
332 bss = cfg80211_get_conn_bss(wdev);
334 cfg80211_put_bss(&rdev->wiphy, bss);
336 schedule_work(&rdev->conn_work);
339 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len)
341 struct wiphy *wiphy = wdev->wiphy;
342 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
343 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf;
344 u16 status_code = le16_to_cpu(mgmt->u.auth.status_code);
346 lockdep_assert_wiphy(wdev->wiphy);
348 if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED)
351 if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
352 wdev->conn->auto_auth &&
353 wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) {
354 /* select automatically between only open, shared, leap */
355 switch (wdev->conn->params.auth_type) {
356 case NL80211_AUTHTYPE_OPEN_SYSTEM:
357 if (wdev->connect_keys)
358 wdev->conn->params.auth_type =
359 NL80211_AUTHTYPE_SHARED_KEY;
361 wdev->conn->params.auth_type =
362 NL80211_AUTHTYPE_NETWORK_EAP;
364 case NL80211_AUTHTYPE_SHARED_KEY:
365 wdev->conn->params.auth_type =
366 NL80211_AUTHTYPE_NETWORK_EAP;
370 wdev->conn->params.auth_type =
371 NL80211_AUTHTYPE_OPEN_SYSTEM;
374 wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT;
375 schedule_work(&rdev->conn_work);
376 } else if (status_code != WLAN_STATUS_SUCCESS) {
377 struct cfg80211_connect_resp_params cr;
379 memset(&cr, 0, sizeof(cr));
380 cr.status = status_code;
381 cr.links[0].bssid = mgmt->bssid;
382 cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED;
383 __cfg80211_connect_result(wdev->netdev, &cr, false);
384 } else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) {
385 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
386 schedule_work(&rdev->conn_work);
390 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status)
392 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
397 if (status == WLAN_STATUS_SUCCESS) {
398 wdev->conn->state = CFG80211_CONN_CONNECTED;
402 if (wdev->conn->prev_bssid_valid) {
404 * Some stupid APs don't accept reassoc, so we
405 * need to fall back to trying regular assoc;
406 * return true so no event is sent to userspace.
408 wdev->conn->prev_bssid_valid = false;
409 wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT;
410 schedule_work(&rdev->conn_work);
414 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED;
415 schedule_work(&rdev->conn_work);
419 void cfg80211_sme_deauth(struct wireless_dev *wdev)
421 cfg80211_sme_free(wdev);
424 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev)
426 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
431 wdev->conn->state = CFG80211_CONN_AUTH_FAILED_TIMEOUT;
432 schedule_work(&rdev->conn_work);
435 void cfg80211_sme_disassoc(struct wireless_dev *wdev)
437 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
442 wdev->conn->state = CFG80211_CONN_DEAUTH;
443 schedule_work(&rdev->conn_work);
446 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev)
448 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
453 wdev->conn->state = CFG80211_CONN_ASSOC_FAILED_TIMEOUT;
454 schedule_work(&rdev->conn_work);
457 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev)
459 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
464 wdev->conn->state = CFG80211_CONN_ABANDON;
465 schedule_work(&rdev->conn_work);
468 static void cfg80211_wdev_release_bsses(struct wireless_dev *wdev)
472 for_each_valid_link(wdev, link) {
473 if (!wdev->links[link].client.current_bss)
475 cfg80211_unhold_bss(wdev->links[link].client.current_bss);
476 cfg80211_put_bss(wdev->wiphy,
477 &wdev->links[link].client.current_bss->pub);
478 wdev->links[link].client.current_bss = NULL;
482 void cfg80211_wdev_release_link_bsses(struct wireless_dev *wdev, u16 link_mask)
486 for_each_valid_link(wdev, link) {
487 if (!wdev->links[link].client.current_bss ||
488 !(link_mask & BIT(link)))
490 cfg80211_unhold_bss(wdev->links[link].client.current_bss);
491 cfg80211_put_bss(wdev->wiphy,
492 &wdev->links[link].client.current_bss->pub);
493 wdev->links[link].client.current_bss = NULL;
497 static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev,
498 const u8 *ies, size_t ies_len,
499 const u8 **out_ies, size_t *out_ies_len)
501 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
505 if (!rdev->wiphy.extended_capabilities_len ||
506 (ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) {
507 *out_ies = kmemdup(ies, ies_len, GFP_KERNEL);
510 *out_ies_len = ies_len;
514 buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2,
520 static const u8 before_extcapa[] = {
521 /* not listing IEs expected to be created by driver */
524 WLAN_EID_RRM_ENABLED_CAPABILITIES,
525 WLAN_EID_MOBILITY_DOMAIN,
526 WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
527 WLAN_EID_BSS_COEX_2040,
530 offs = ieee80211_ie_split(ies, ies_len, before_extcapa,
531 ARRAY_SIZE(before_extcapa), 0);
532 memcpy(buf, ies, offs);
533 /* leave a whole for extended capabilities IE */
534 memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2,
535 ies + offs, ies_len - offs);
540 /* place extended capabilities IE (with only driver capabilities) */
541 buf[offs] = WLAN_EID_EXT_CAPABILITY;
542 buf[offs + 1] = rdev->wiphy.extended_capabilities_len;
543 memcpy(buf + offs + 2,
544 rdev->wiphy.extended_capabilities,
545 rdev->wiphy.extended_capabilities_len);
548 *out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2;
553 static int cfg80211_sme_connect(struct wireless_dev *wdev,
554 struct cfg80211_connect_params *connect,
555 const u8 *prev_bssid)
557 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
558 struct cfg80211_bss *bss;
561 if (!rdev->ops->auth || !rdev->ops->assoc)
564 cfg80211_wdev_release_bsses(wdev);
566 if (wdev->connected) {
567 cfg80211_sme_free(wdev);
568 wdev->connected = false;
574 wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL);
579 * Copy all parameters, and treat explicitly IEs, BSSID, SSID.
581 memcpy(&wdev->conn->params, connect, sizeof(*connect));
582 if (connect->bssid) {
583 wdev->conn->params.bssid = wdev->conn->bssid;
584 memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN);
587 if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len,
589 &wdev->conn->params.ie_len)) {
594 wdev->conn->params.ie = wdev->conn->ie;
596 if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
597 wdev->conn->auto_auth = true;
598 /* start with open system ... should mostly work */
599 wdev->conn->params.auth_type =
600 NL80211_AUTHTYPE_OPEN_SYSTEM;
602 wdev->conn->auto_auth = false;
605 wdev->conn->params.ssid = wdev->u.client.ssid;
606 wdev->conn->params.ssid_len = wdev->u.client.ssid_len;
608 /* see if we have the bss already */
609 bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel,
610 wdev->conn->params.bssid,
611 wdev->conn->params.ssid,
612 wdev->conn->params.ssid_len,
614 IEEE80211_PRIVACY(wdev->conn->params.privacy));
617 memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN);
618 wdev->conn->prev_bssid_valid = true;
621 /* we're good if we have a matching bss struct */
623 enum nl80211_timeout_reason treason;
625 cfg80211_step_auth_next(wdev->conn, bss);
626 err = cfg80211_conn_do_work(wdev, &treason);
627 cfg80211_put_bss(wdev->wiphy, bss);
629 /* otherwise we'll need to scan for the AP first */
630 err = cfg80211_conn_scan(wdev);
633 * If we can't scan right now, then we need to scan again
634 * after the current scan finished, since the parameters
635 * changed (unless we find a good AP anyway).
639 wdev->conn->state = CFG80211_CONN_SCAN_AGAIN;
644 cfg80211_sme_free(wdev);
649 static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason)
651 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
657 if (!rdev->ops->deauth)
660 if (wdev->conn->state == CFG80211_CONN_SCANNING ||
661 wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) {
666 /* wdev->conn->params.bssid must be set if > SCANNING */
667 err = cfg80211_mlme_deauth(rdev, wdev->netdev,
668 wdev->conn->params.bssid,
669 NULL, 0, reason, false);
671 cfg80211_sme_free(wdev);
676 * code shared for in-device and software SME
679 static bool cfg80211_is_all_idle(void)
681 struct cfg80211_registered_device *rdev;
682 struct wireless_dev *wdev;
683 bool is_all_idle = true;
686 * All devices must be idle as otherwise if you are actively
687 * scanning some new beacon hints could be learned and would
688 * count as new regulatory hints.
689 * Also if there is any other active beaconing interface we
690 * need not issue a disconnect hint and reset any info such
691 * as chan dfs state, etc.
693 for_each_rdev(rdev) {
694 wiphy_lock(&rdev->wiphy);
695 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
696 if (wdev->conn || wdev->connected ||
697 cfg80211_beaconing_iface_active(wdev))
700 wiphy_unlock(&rdev->wiphy);
706 static void disconnect_work(struct work_struct *work)
709 if (cfg80211_is_all_idle())
710 regulatory_hint_disconnect();
714 DECLARE_WORK(cfg80211_disconnect_work, disconnect_work);
717 cfg80211_connect_result_release_bsses(struct wireless_dev *wdev,
718 struct cfg80211_connect_resp_params *cr)
722 for_each_valid_link(cr, link) {
723 if (!cr->links[link].bss)
725 cfg80211_unhold_bss(bss_from_pub(cr->links[link].bss));
726 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
731 * API calls for drivers implementing connect/disconnect and
735 /* This method must consume bss one way or another */
736 void __cfg80211_connect_result(struct net_device *dev,
737 struct cfg80211_connect_resp_params *cr,
740 struct wireless_dev *wdev = dev->ieee80211_ptr;
741 const struct element *country_elem = NULL;
742 const struct element *ssid;
743 const u8 *country_data;
745 #ifdef CONFIG_CFG80211_WEXT
746 union iwreq_data wrqu;
749 const u8 *connected_addr;
750 bool bss_not_found = false;
752 lockdep_assert_wiphy(wdev->wiphy);
754 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
755 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
758 if (cr->valid_links) {
759 if (WARN_ON(!cr->ap_mld_addr))
762 for_each_valid_link(cr, link) {
763 if (WARN_ON(!cr->links[link].addr))
767 if (WARN_ON(wdev->connect_keys))
771 wdev->unprot_beacon_reported = 0;
772 nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr,
774 connected_addr = cr->valid_links ? cr->ap_mld_addr : cr->links[0].bssid;
776 #ifdef CONFIG_CFG80211_WEXT
777 if (wextev && !cr->valid_links) {
778 if (cr->req_ie && cr->status == WLAN_STATUS_SUCCESS) {
779 memset(&wrqu, 0, sizeof(wrqu));
780 wrqu.data.length = cr->req_ie_len;
781 wireless_send_event(dev, IWEVASSOCREQIE, &wrqu,
785 if (cr->resp_ie && cr->status == WLAN_STATUS_SUCCESS) {
786 memset(&wrqu, 0, sizeof(wrqu));
787 wrqu.data.length = cr->resp_ie_len;
788 wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu,
792 memset(&wrqu, 0, sizeof(wrqu));
793 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
794 if (connected_addr && cr->status == WLAN_STATUS_SUCCESS) {
795 memcpy(wrqu.ap_addr.sa_data, connected_addr, ETH_ALEN);
796 memcpy(wdev->wext.prev_bssid, connected_addr, ETH_ALEN);
797 wdev->wext.prev_bssid_valid = true;
799 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
803 if (cr->status == WLAN_STATUS_SUCCESS) {
804 if (!wiphy_to_rdev(wdev->wiphy)->ops->connect) {
805 for_each_valid_link(cr, link) {
806 if (WARN_ON_ONCE(!cr->links[link].bss))
811 for_each_valid_link(cr, link) {
812 /* don't do extra lookups for failures */
813 if (cr->links[link].status != WLAN_STATUS_SUCCESS)
816 if (cr->links[link].bss)
819 cr->links[link].bss =
820 cfg80211_get_bss(wdev->wiphy, NULL,
821 cr->links[link].bssid,
823 wdev->u.client.ssid_len,
825 IEEE80211_PRIVACY_ANY);
826 if (!cr->links[link].bss) {
827 bss_not_found = true;
830 cfg80211_hold_bss(bss_from_pub(cr->links[link].bss));
834 cfg80211_wdev_release_bsses(wdev);
836 if (cr->status != WLAN_STATUS_SUCCESS) {
837 kfree_sensitive(wdev->connect_keys);
838 wdev->connect_keys = NULL;
839 wdev->u.client.ssid_len = 0;
840 wdev->conn_owner_nlportid = 0;
841 cfg80211_connect_result_release_bsses(wdev, cr);
842 cfg80211_sme_free(wdev);
846 if (WARN_ON(bss_not_found)) {
847 cfg80211_connect_result_release_bsses(wdev, cr);
851 memset(wdev->links, 0, sizeof(wdev->links));
852 for_each_valid_link(cr, link) {
853 if (cr->links[link].status == WLAN_STATUS_SUCCESS)
855 cr->valid_links &= ~BIT(link);
856 /* don't require bss pointer for failed links */
857 if (!cr->links[link].bss)
859 cfg80211_unhold_bss(bss_from_pub(cr->links[link].bss));
860 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
862 wdev->valid_links = cr->valid_links;
863 for_each_valid_link(cr, link)
864 wdev->links[link].client.current_bss =
865 bss_from_pub(cr->links[link].bss);
866 wdev->connected = true;
867 ether_addr_copy(wdev->u.client.connected_addr, connected_addr);
868 if (cr->valid_links) {
869 for_each_valid_link(cr, link)
870 memcpy(wdev->links[link].addr, cr->links[link].addr,
874 cfg80211_upload_connect_keys(wdev);
877 for_each_valid_link(cr, link) {
879 ieee80211_bss_get_elem(cr->links[link].bss,
889 country_datalen = country_elem->datalen;
890 country_data = kmemdup(country_elem->data, country_datalen, GFP_ATOMIC);
896 regulatory_hint_country_ie(wdev->wiphy,
897 cr->links[link].bss->channel->band,
898 country_data, country_datalen);
901 if (!wdev->u.client.ssid_len) {
903 for_each_valid_link(cr, link) {
904 ssid = ieee80211_bss_get_elem(cr->links[link].bss,
907 if (!ssid || !ssid->datalen)
910 memcpy(wdev->u.client.ssid, ssid->data, ssid->datalen);
911 wdev->u.client.ssid_len = ssid->datalen;
919 for_each_valid_link(cr, link)
920 cfg80211_put_bss(wdev->wiphy, cr->links[link].bss);
923 static void cfg80211_update_link_bss(struct wireless_dev *wdev,
924 struct cfg80211_bss **bss)
926 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
927 struct cfg80211_internal_bss *ibss;
932 ibss = bss_from_pub(*bss);
933 if (list_empty(&ibss->list)) {
934 struct cfg80211_bss *found = NULL, *tmp = *bss;
936 found = cfg80211_get_bss(wdev->wiphy, NULL,
939 wdev->u.client.ssid_len,
941 IEEE80211_PRIVACY_ANY);
943 /* The same BSS is already updated so use it
944 * instead, as it has latest info.
948 /* Update with BSS provided by driver, it will
949 * be freshly added and ref cnted, we can free
952 * signal_valid can be false, as we are not
953 * expecting the BSS to be found.
955 * keep the old timestamp to avoid confusion
957 cfg80211_bss_update(rdev, ibss, false,
961 cfg80211_put_bss(wdev->wiphy, tmp);
965 /* Consumes bss object(s) one way or another */
966 void cfg80211_connect_done(struct net_device *dev,
967 struct cfg80211_connect_resp_params *params,
970 struct wireless_dev *wdev = dev->ieee80211_ptr;
971 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
972 struct cfg80211_event *ev;
975 size_t link_info_size = 0;
978 for_each_valid_link(params, link) {
979 cfg80211_update_link_bss(wdev, ¶ms->links[link].bss);
980 link_info_size += params->links[link].bssid ? ETH_ALEN : 0;
981 link_info_size += params->links[link].addr ? ETH_ALEN : 0;
984 ev = kzalloc(sizeof(*ev) + (params->ap_mld_addr ? ETH_ALEN : 0) +
985 params->req_ie_len + params->resp_ie_len +
986 params->fils.kek_len + params->fils.pmk_len +
987 (params->fils.pmkid ? WLAN_PMKID_LEN : 0) + link_info_size,
991 for_each_valid_link(params, link)
992 cfg80211_put_bss(wdev->wiphy,
993 params->links[link].bss);
997 ev->type = EVENT_CONNECT_RESULT;
998 next = ((u8 *)ev) + sizeof(*ev);
999 if (params->ap_mld_addr) {
1000 ev->cr.ap_mld_addr = next;
1001 memcpy((void *)ev->cr.ap_mld_addr, params->ap_mld_addr,
1005 if (params->req_ie_len) {
1006 ev->cr.req_ie = next;
1007 ev->cr.req_ie_len = params->req_ie_len;
1008 memcpy((void *)ev->cr.req_ie, params->req_ie,
1009 params->req_ie_len);
1010 next += params->req_ie_len;
1012 if (params->resp_ie_len) {
1013 ev->cr.resp_ie = next;
1014 ev->cr.resp_ie_len = params->resp_ie_len;
1015 memcpy((void *)ev->cr.resp_ie, params->resp_ie,
1016 params->resp_ie_len);
1017 next += params->resp_ie_len;
1019 if (params->fils.kek_len) {
1020 ev->cr.fils.kek = next;
1021 ev->cr.fils.kek_len = params->fils.kek_len;
1022 memcpy((void *)ev->cr.fils.kek, params->fils.kek,
1023 params->fils.kek_len);
1024 next += params->fils.kek_len;
1026 if (params->fils.pmk_len) {
1027 ev->cr.fils.pmk = next;
1028 ev->cr.fils.pmk_len = params->fils.pmk_len;
1029 memcpy((void *)ev->cr.fils.pmk, params->fils.pmk,
1030 params->fils.pmk_len);
1031 next += params->fils.pmk_len;
1033 if (params->fils.pmkid) {
1034 ev->cr.fils.pmkid = next;
1035 memcpy((void *)ev->cr.fils.pmkid, params->fils.pmkid,
1037 next += WLAN_PMKID_LEN;
1039 ev->cr.fils.update_erp_next_seq_num = params->fils.update_erp_next_seq_num;
1040 if (params->fils.update_erp_next_seq_num)
1041 ev->cr.fils.erp_next_seq_num = params->fils.erp_next_seq_num;
1042 ev->cr.valid_links = params->valid_links;
1043 for_each_valid_link(params, link) {
1044 if (params->links[link].bss)
1046 bss_from_pub(params->links[link].bss));
1047 ev->cr.links[link].bss = params->links[link].bss;
1049 if (params->links[link].addr) {
1050 ev->cr.links[link].addr = next;
1051 memcpy((void *)ev->cr.links[link].addr,
1052 params->links[link].addr,
1056 if (params->links[link].bssid) {
1057 ev->cr.links[link].bssid = next;
1058 memcpy((void *)ev->cr.links[link].bssid,
1059 params->links[link].bssid,
1064 ev->cr.status = params->status;
1065 ev->cr.timeout_reason = params->timeout_reason;
1067 spin_lock_irqsave(&wdev->event_lock, flags);
1068 list_add_tail(&ev->list, &wdev->event_list);
1069 spin_unlock_irqrestore(&wdev->event_lock, flags);
1070 queue_work(cfg80211_wq, &rdev->event_work);
1072 EXPORT_SYMBOL(cfg80211_connect_done);
1074 /* Consumes bss object one way or another */
1075 void __cfg80211_roamed(struct wireless_dev *wdev,
1076 struct cfg80211_roam_info *info)
1078 #ifdef CONFIG_CFG80211_WEXT
1079 union iwreq_data wrqu;
1082 const u8 *connected_addr;
1084 lockdep_assert_wiphy(wdev->wiphy);
1086 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1087 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1090 if (WARN_ON(!wdev->connected))
1093 if (info->valid_links) {
1094 if (WARN_ON(!info->ap_mld_addr))
1097 for_each_valid_link(info, link) {
1098 if (WARN_ON(!info->links[link].addr))
1103 cfg80211_wdev_release_bsses(wdev);
1105 for_each_valid_link(info, link) {
1106 if (WARN_ON(!info->links[link].bss))
1110 memset(wdev->links, 0, sizeof(wdev->links));
1111 wdev->valid_links = info->valid_links;
1112 for_each_valid_link(info, link) {
1113 cfg80211_hold_bss(bss_from_pub(info->links[link].bss));
1114 wdev->links[link].client.current_bss =
1115 bss_from_pub(info->links[link].bss);
1118 connected_addr = info->valid_links ?
1120 info->links[0].bss->bssid;
1121 ether_addr_copy(wdev->u.client.connected_addr, connected_addr);
1122 if (info->valid_links) {
1123 for_each_valid_link(info, link)
1124 memcpy(wdev->links[link].addr, info->links[link].addr,
1127 wdev->unprot_beacon_reported = 0;
1128 nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy),
1129 wdev->netdev, info, GFP_KERNEL);
1131 #ifdef CONFIG_CFG80211_WEXT
1132 if (!info->valid_links) {
1134 memset(&wrqu, 0, sizeof(wrqu));
1135 wrqu.data.length = info->req_ie_len;
1136 wireless_send_event(wdev->netdev, IWEVASSOCREQIE,
1137 &wrqu, info->req_ie);
1140 if (info->resp_ie) {
1141 memset(&wrqu, 0, sizeof(wrqu));
1142 wrqu.data.length = info->resp_ie_len;
1143 wireless_send_event(wdev->netdev, IWEVASSOCRESPIE,
1144 &wrqu, info->resp_ie);
1147 memset(&wrqu, 0, sizeof(wrqu));
1148 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1149 memcpy(wrqu.ap_addr.sa_data, connected_addr, ETH_ALEN);
1150 memcpy(wdev->wext.prev_bssid, connected_addr, ETH_ALEN);
1151 wdev->wext.prev_bssid_valid = true;
1152 wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL);
1158 for_each_valid_link(info, link)
1159 cfg80211_put_bss(wdev->wiphy, info->links[link].bss);
1162 /* Consumes info->links.bss object(s) one way or another */
1163 void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info,
1166 struct wireless_dev *wdev = dev->ieee80211_ptr;
1167 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1168 struct cfg80211_event *ev;
1169 unsigned long flags;
1172 size_t link_info_size = 0;
1173 bool bss_not_found = false;
1175 for_each_valid_link(info, link) {
1176 link_info_size += info->links[link].addr ? ETH_ALEN : 0;
1177 link_info_size += info->links[link].bssid ? ETH_ALEN : 0;
1179 if (info->links[link].bss)
1182 info->links[link].bss =
1183 cfg80211_get_bss(wdev->wiphy,
1184 info->links[link].channel,
1185 info->links[link].bssid,
1186 wdev->u.client.ssid,
1187 wdev->u.client.ssid_len,
1188 wdev->conn_bss_type,
1189 IEEE80211_PRIVACY_ANY);
1191 if (!info->links[link].bss) {
1192 bss_not_found = true;
1197 if (WARN_ON(bss_not_found))
1200 ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len +
1201 info->fils.kek_len + info->fils.pmk_len +
1202 (info->fils.pmkid ? WLAN_PMKID_LEN : 0) +
1203 (info->ap_mld_addr ? ETH_ALEN : 0) + link_info_size, gfp);
1207 ev->type = EVENT_ROAMED;
1208 next = ((u8 *)ev) + sizeof(*ev);
1209 if (info->req_ie_len) {
1210 ev->rm.req_ie = next;
1211 ev->rm.req_ie_len = info->req_ie_len;
1212 memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len);
1213 next += info->req_ie_len;
1215 if (info->resp_ie_len) {
1216 ev->rm.resp_ie = next;
1217 ev->rm.resp_ie_len = info->resp_ie_len;
1218 memcpy((void *)ev->rm.resp_ie, info->resp_ie,
1220 next += info->resp_ie_len;
1222 if (info->fils.kek_len) {
1223 ev->rm.fils.kek = next;
1224 ev->rm.fils.kek_len = info->fils.kek_len;
1225 memcpy((void *)ev->rm.fils.kek, info->fils.kek,
1226 info->fils.kek_len);
1227 next += info->fils.kek_len;
1229 if (info->fils.pmk_len) {
1230 ev->rm.fils.pmk = next;
1231 ev->rm.fils.pmk_len = info->fils.pmk_len;
1232 memcpy((void *)ev->rm.fils.pmk, info->fils.pmk,
1233 info->fils.pmk_len);
1234 next += info->fils.pmk_len;
1236 if (info->fils.pmkid) {
1237 ev->rm.fils.pmkid = next;
1238 memcpy((void *)ev->rm.fils.pmkid, info->fils.pmkid,
1240 next += WLAN_PMKID_LEN;
1242 ev->rm.fils.update_erp_next_seq_num = info->fils.update_erp_next_seq_num;
1243 if (info->fils.update_erp_next_seq_num)
1244 ev->rm.fils.erp_next_seq_num = info->fils.erp_next_seq_num;
1245 if (info->ap_mld_addr) {
1246 ev->rm.ap_mld_addr = next;
1247 memcpy((void *)ev->rm.ap_mld_addr, info->ap_mld_addr,
1251 ev->rm.valid_links = info->valid_links;
1252 for_each_valid_link(info, link) {
1253 ev->rm.links[link].bss = info->links[link].bss;
1255 if (info->links[link].addr) {
1256 ev->rm.links[link].addr = next;
1257 memcpy((void *)ev->rm.links[link].addr,
1258 info->links[link].addr,
1263 if (info->links[link].bssid) {
1264 ev->rm.links[link].bssid = next;
1265 memcpy((void *)ev->rm.links[link].bssid,
1266 info->links[link].bssid,
1272 spin_lock_irqsave(&wdev->event_lock, flags);
1273 list_add_tail(&ev->list, &wdev->event_list);
1274 spin_unlock_irqrestore(&wdev->event_lock, flags);
1275 queue_work(cfg80211_wq, &rdev->event_work);
1279 for_each_valid_link(info, link)
1280 cfg80211_put_bss(wdev->wiphy, info->links[link].bss);
1283 EXPORT_SYMBOL(cfg80211_roamed);
1285 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *peer_addr,
1286 const u8 *td_bitmap, u8 td_bitmap_len)
1288 lockdep_assert_wiphy(wdev->wiphy);
1290 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1291 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT &&
1292 wdev->iftype != NL80211_IFTYPE_AP &&
1293 wdev->iftype != NL80211_IFTYPE_P2P_GO))
1296 if (wdev->iftype == NL80211_IFTYPE_STATION ||
1297 wdev->iftype == NL80211_IFTYPE_P2P_CLIENT) {
1298 if (WARN_ON(!wdev->connected) ||
1299 WARN_ON(!ether_addr_equal(wdev->u.client.connected_addr, peer_addr)))
1303 nl80211_send_port_authorized(wiphy_to_rdev(wdev->wiphy), wdev->netdev,
1304 peer_addr, td_bitmap, td_bitmap_len);
1307 void cfg80211_port_authorized(struct net_device *dev, const u8 *peer_addr,
1308 const u8 *td_bitmap, u8 td_bitmap_len, gfp_t gfp)
1310 struct wireless_dev *wdev = dev->ieee80211_ptr;
1311 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1312 struct cfg80211_event *ev;
1313 unsigned long flags;
1315 if (WARN_ON(!peer_addr))
1318 ev = kzalloc(sizeof(*ev) + td_bitmap_len, gfp);
1322 ev->type = EVENT_PORT_AUTHORIZED;
1323 memcpy(ev->pa.peer_addr, peer_addr, ETH_ALEN);
1324 ev->pa.td_bitmap = ((u8 *)ev) + sizeof(*ev);
1325 ev->pa.td_bitmap_len = td_bitmap_len;
1326 memcpy((void *)ev->pa.td_bitmap, td_bitmap, td_bitmap_len);
1329 * Use the wdev event list so that if there are pending
1330 * connected/roamed events, they will be reported first.
1332 spin_lock_irqsave(&wdev->event_lock, flags);
1333 list_add_tail(&ev->list, &wdev->event_list);
1334 spin_unlock_irqrestore(&wdev->event_lock, flags);
1335 queue_work(cfg80211_wq, &rdev->event_work);
1337 EXPORT_SYMBOL(cfg80211_port_authorized);
1339 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
1340 size_t ie_len, u16 reason, bool from_ap)
1342 struct wireless_dev *wdev = dev->ieee80211_ptr;
1343 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1345 #ifdef CONFIG_CFG80211_WEXT
1346 union iwreq_data wrqu;
1349 lockdep_assert_wiphy(wdev->wiphy);
1351 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION &&
1352 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT))
1355 cfg80211_wdev_release_bsses(wdev);
1356 wdev->valid_links = 0;
1357 wdev->connected = false;
1358 wdev->u.client.ssid_len = 0;
1359 wdev->conn_owner_nlportid = 0;
1360 kfree_sensitive(wdev->connect_keys);
1361 wdev->connect_keys = NULL;
1363 nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);
1365 /* stop critical protocol if supported */
1366 if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) {
1367 rdev->crit_proto_nlportid = 0;
1368 rdev_crit_proto_stop(rdev, wdev);
1372 * Delete all the keys ... pairwise keys can't really
1373 * exist any more anyway, but default keys might.
1375 if (rdev->ops->del_key) {
1376 int max_key_idx = 5;
1378 if (wiphy_ext_feature_isset(
1380 NL80211_EXT_FEATURE_BEACON_PROTECTION) ||
1381 wiphy_ext_feature_isset(
1383 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT))
1385 for (i = 0; i <= max_key_idx; i++)
1386 rdev_del_key(rdev, dev, -1, i, false, NULL);
1389 rdev_set_qos_map(rdev, dev, NULL);
1391 #ifdef CONFIG_CFG80211_WEXT
1392 memset(&wrqu, 0, sizeof(wrqu));
1393 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1394 wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
1395 wdev->wext.connect.ssid_len = 0;
1398 schedule_work(&cfg80211_disconnect_work);
1400 cfg80211_schedule_channels_check(wdev);
1403 void cfg80211_disconnected(struct net_device *dev, u16 reason,
1404 const u8 *ie, size_t ie_len,
1405 bool locally_generated, gfp_t gfp)
1407 struct wireless_dev *wdev = dev->ieee80211_ptr;
1408 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1409 struct cfg80211_event *ev;
1410 unsigned long flags;
1412 ev = kzalloc(sizeof(*ev) + ie_len, gfp);
1416 ev->type = EVENT_DISCONNECTED;
1417 ev->dc.ie = ((u8 *)ev) + sizeof(*ev);
1418 ev->dc.ie_len = ie_len;
1419 memcpy((void *)ev->dc.ie, ie, ie_len);
1420 ev->dc.reason = reason;
1421 ev->dc.locally_generated = locally_generated;
1423 spin_lock_irqsave(&wdev->event_lock, flags);
1424 list_add_tail(&ev->list, &wdev->event_list);
1425 spin_unlock_irqrestore(&wdev->event_lock, flags);
1426 queue_work(cfg80211_wq, &rdev->event_work);
1428 EXPORT_SYMBOL(cfg80211_disconnected);
1431 * API calls for nl80211/wext compatibility code
1433 int cfg80211_connect(struct cfg80211_registered_device *rdev,
1434 struct net_device *dev,
1435 struct cfg80211_connect_params *connect,
1436 struct cfg80211_cached_keys *connkeys,
1437 const u8 *prev_bssid)
1439 struct wireless_dev *wdev = dev->ieee80211_ptr;
1442 lockdep_assert_wiphy(wdev->wiphy);
1445 * If we have an ssid_len, we're trying to connect or are
1446 * already connected, so reject a new SSID unless it's the
1447 * same (which is the case for re-association.)
1449 if (wdev->u.client.ssid_len &&
1450 (wdev->u.client.ssid_len != connect->ssid_len ||
1451 memcmp(wdev->u.client.ssid, connect->ssid, wdev->u.client.ssid_len)))
1455 * If connected, reject (re-)association unless prev_bssid
1456 * matches the current BSSID.
1458 if (wdev->connected) {
1461 if (!ether_addr_equal(prev_bssid,
1462 wdev->u.client.connected_addr))
1467 * Reject if we're in the process of connecting with WEP,
1468 * this case isn't very interesting and trying to handle
1469 * it would make the code much more complex.
1471 if (wdev->connect_keys)
1472 return -EINPROGRESS;
1474 cfg80211_oper_and_ht_capa(&connect->ht_capa_mask,
1475 rdev->wiphy.ht_capa_mod_mask);
1476 cfg80211_oper_and_vht_capa(&connect->vht_capa_mask,
1477 rdev->wiphy.vht_capa_mod_mask);
1479 if (connkeys && connkeys->def >= 0) {
1483 idx = connkeys->def;
1484 cipher = connkeys->params[idx].cipher;
1485 /* If given a WEP key we may need it for shared key auth */
1486 if (cipher == WLAN_CIPHER_SUITE_WEP40 ||
1487 cipher == WLAN_CIPHER_SUITE_WEP104) {
1488 connect->key_idx = idx;
1489 connect->key = connkeys->params[idx].key;
1490 connect->key_len = connkeys->params[idx].key_len;
1493 * If ciphers are not set (e.g. when going through
1494 * iwconfig), we have to set them appropriately here.
1496 if (connect->crypto.cipher_group == 0)
1497 connect->crypto.cipher_group = cipher;
1499 if (connect->crypto.n_ciphers_pairwise == 0) {
1500 connect->crypto.n_ciphers_pairwise = 1;
1501 connect->crypto.ciphers_pairwise[0] = cipher;
1505 if (WARN_ON(connkeys))
1508 /* connect can point to wdev->wext.connect which
1509 * can hold key data from a previous connection
1511 connect->key = NULL;
1512 connect->key_len = 0;
1513 connect->key_idx = 0;
1516 wdev->connect_keys = connkeys;
1517 memcpy(wdev->u.client.ssid, connect->ssid, connect->ssid_len);
1518 wdev->u.client.ssid_len = connect->ssid_len;
1520 wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS :
1521 IEEE80211_BSS_TYPE_ESS;
1523 if (!rdev->ops->connect)
1524 err = cfg80211_sme_connect(wdev, connect, prev_bssid);
1526 err = rdev_connect(rdev, dev, connect);
1529 wdev->connect_keys = NULL;
1531 * This could be reassoc getting refused, don't clear
1532 * ssid_len in that case.
1534 if (!wdev->connected)
1535 wdev->u.client.ssid_len = 0;
1542 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
1543 struct net_device *dev, u16 reason, bool wextev)
1545 struct wireless_dev *wdev = dev->ieee80211_ptr;
1548 lockdep_assert_wiphy(wdev->wiphy);
1550 kfree_sensitive(wdev->connect_keys);
1551 wdev->connect_keys = NULL;
1553 wdev->conn_owner_nlportid = 0;
1556 err = cfg80211_sme_disconnect(wdev, reason);
1557 else if (!rdev->ops->disconnect)
1558 cfg80211_mlme_down(rdev, dev);
1559 else if (wdev->u.client.ssid_len)
1560 err = rdev_disconnect(rdev, dev, reason);
1563 * Clear ssid_len unless we actually were fully connected,
1564 * in which case cfg80211_disconnected() will take care of
1567 if (!wdev->connected)
1568 wdev->u.client.ssid_len = 0;
1574 * Used to clean up after the connection / connection attempt owner socket
1577 void cfg80211_autodisconnect_wk(struct work_struct *work)
1579 struct wireless_dev *wdev =
1580 container_of(work, struct wireless_dev, disconnect_wk);
1581 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1583 wiphy_lock(wdev->wiphy);
1585 if (wdev->conn_owner_nlportid) {
1586 switch (wdev->iftype) {
1587 case NL80211_IFTYPE_ADHOC:
1588 cfg80211_leave_ibss(rdev, wdev->netdev, false);
1590 case NL80211_IFTYPE_AP:
1591 case NL80211_IFTYPE_P2P_GO:
1592 cfg80211_stop_ap(rdev, wdev->netdev, -1, false);
1594 case NL80211_IFTYPE_MESH_POINT:
1595 cfg80211_leave_mesh(rdev, wdev->netdev);
1597 case NL80211_IFTYPE_STATION:
1598 case NL80211_IFTYPE_P2P_CLIENT:
1600 * Use disconnect_bssid if still connecting and
1601 * ops->disconnect not implemented. Otherwise we can
1602 * use cfg80211_disconnect.
1604 if (rdev->ops->disconnect || wdev->connected)
1605 cfg80211_disconnect(rdev, wdev->netdev,
1606 WLAN_REASON_DEAUTH_LEAVING,
1609 cfg80211_mlme_deauth(rdev, wdev->netdev,
1610 wdev->disconnect_bssid,
1612 WLAN_REASON_DEAUTH_LEAVING,
1620 wiphy_unlock(wdev->wiphy);