xref: /openbmc/linux/net/mac80211/cfg.c (revision a5b2c10c)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * mac80211 configuration hooks for cfg80211
4  *
5  * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
6  * Copyright 2013-2015  Intel Mobile Communications GmbH
7  * Copyright (C) 2015-2017 Intel Deutschland GmbH
8  * Copyright (C) 2018-2020 Intel Corporation
9  */
10 
11 #include <linux/ieee80211.h>
12 #include <linux/nl80211.h>
13 #include <linux/rtnetlink.h>
14 #include <linux/slab.h>
15 #include <net/net_namespace.h>
16 #include <linux/rcupdate.h>
17 #include <linux/fips.h>
18 #include <linux/if_ether.h>
19 #include <net/cfg80211.h>
20 #include "ieee80211_i.h"
21 #include "driver-ops.h"
22 #include "rate.h"
23 #include "mesh.h"
24 #include "wme.h"
25 
26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
27 					 struct vif_params *params)
28 {
29 	bool mu_mimo_groups = false;
30 	bool mu_mimo_follow = false;
31 
32 	if (params->vht_mumimo_groups) {
33 		u64 membership;
34 
35 		BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
36 
37 		memcpy(sdata->vif.bss_conf.mu_group.membership,
38 		       params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
39 		memcpy(sdata->vif.bss_conf.mu_group.position,
40 		       params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
41 		       WLAN_USER_POSITION_LEN);
42 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
43 		/* don't care about endianness - just check for 0 */
44 		memcpy(&membership, params->vht_mumimo_groups,
45 		       WLAN_MEMBERSHIP_LEN);
46 		mu_mimo_groups = membership != 0;
47 	}
48 
49 	if (params->vht_mumimo_follow_addr) {
50 		mu_mimo_follow =
51 			is_valid_ether_addr(params->vht_mumimo_follow_addr);
52 		ether_addr_copy(sdata->u.mntr.mu_follow_addr,
53 				params->vht_mumimo_follow_addr);
54 	}
55 
56 	sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
57 }
58 
59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
60 				     struct vif_params *params)
61 {
62 	struct ieee80211_local *local = sdata->local;
63 	struct ieee80211_sub_if_data *monitor_sdata;
64 
65 	/* check flags first */
66 	if (params->flags && ieee80211_sdata_running(sdata)) {
67 		u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
68 
69 		/*
70 		 * Prohibit MONITOR_FLAG_COOK_FRAMES and
71 		 * MONITOR_FLAG_ACTIVE to be changed while the
72 		 * interface is up.
73 		 * Else we would need to add a lot of cruft
74 		 * to update everything:
75 		 *	cooked_mntrs, monitor and all fif_* counters
76 		 *	reconfigure hardware
77 		 */
78 		if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
79 			return -EBUSY;
80 	}
81 
82 	/* also validate MU-MIMO change */
83 	monitor_sdata = rtnl_dereference(local->monitor_sdata);
84 
85 	if (!monitor_sdata &&
86 	    (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
87 		return -EOPNOTSUPP;
88 
89 	/* apply all changes now - no failures allowed */
90 
91 	if (monitor_sdata)
92 		ieee80211_set_mu_mimo_follow(monitor_sdata, params);
93 
94 	if (params->flags) {
95 		if (ieee80211_sdata_running(sdata)) {
96 			ieee80211_adjust_monitor_flags(sdata, -1);
97 			sdata->u.mntr.flags = params->flags;
98 			ieee80211_adjust_monitor_flags(sdata, 1);
99 
100 			ieee80211_configure_filter(local);
101 		} else {
102 			/*
103 			 * Because the interface is down, ieee80211_do_stop
104 			 * and ieee80211_do_open take care of "everything"
105 			 * mentioned in the comment above.
106 			 */
107 			sdata->u.mntr.flags = params->flags;
108 		}
109 	}
110 
111 	return 0;
112 }
113 
114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
115 						const char *name,
116 						unsigned char name_assign_type,
117 						enum nl80211_iftype type,
118 						struct vif_params *params)
119 {
120 	struct ieee80211_local *local = wiphy_priv(wiphy);
121 	struct wireless_dev *wdev;
122 	struct ieee80211_sub_if_data *sdata;
123 	int err;
124 
125 	err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
126 	if (err)
127 		return ERR_PTR(err);
128 
129 	sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
130 
131 	if (type == NL80211_IFTYPE_MONITOR) {
132 		err = ieee80211_set_mon_options(sdata, params);
133 		if (err) {
134 			ieee80211_if_remove(sdata);
135 			return NULL;
136 		}
137 	}
138 
139 	return wdev;
140 }
141 
142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
143 {
144 	ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
145 
146 	return 0;
147 }
148 
149 static int ieee80211_change_iface(struct wiphy *wiphy,
150 				  struct net_device *dev,
151 				  enum nl80211_iftype type,
152 				  struct vif_params *params)
153 {
154 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
155 	int ret;
156 
157 	ret = ieee80211_if_change_type(sdata, type);
158 	if (ret)
159 		return ret;
160 
161 	if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
162 		RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
163 		ieee80211_check_fast_rx_iface(sdata);
164 	} else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
165 		sdata->u.mgd.use_4addr = params->use_4addr;
166 	}
167 
168 	if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
169 		ret = ieee80211_set_mon_options(sdata, params);
170 		if (ret)
171 			return ret;
172 	}
173 
174 	return 0;
175 }
176 
177 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
178 				      struct wireless_dev *wdev)
179 {
180 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
181 	int ret;
182 
183 	mutex_lock(&sdata->local->chanctx_mtx);
184 	ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
185 	mutex_unlock(&sdata->local->chanctx_mtx);
186 	if (ret < 0)
187 		return ret;
188 
189 	return ieee80211_do_open(wdev, true);
190 }
191 
192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
193 				      struct wireless_dev *wdev)
194 {
195 	ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
196 }
197 
198 static int ieee80211_start_nan(struct wiphy *wiphy,
199 			       struct wireless_dev *wdev,
200 			       struct cfg80211_nan_conf *conf)
201 {
202 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
203 	int ret;
204 
205 	mutex_lock(&sdata->local->chanctx_mtx);
206 	ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
207 	mutex_unlock(&sdata->local->chanctx_mtx);
208 	if (ret < 0)
209 		return ret;
210 
211 	ret = ieee80211_do_open(wdev, true);
212 	if (ret)
213 		return ret;
214 
215 	ret = drv_start_nan(sdata->local, sdata, conf);
216 	if (ret)
217 		ieee80211_sdata_stop(sdata);
218 
219 	sdata->u.nan.conf = *conf;
220 
221 	return ret;
222 }
223 
224 static void ieee80211_stop_nan(struct wiphy *wiphy,
225 			       struct wireless_dev *wdev)
226 {
227 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
228 
229 	drv_stop_nan(sdata->local, sdata);
230 	ieee80211_sdata_stop(sdata);
231 }
232 
233 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
234 				     struct wireless_dev *wdev,
235 				     struct cfg80211_nan_conf *conf,
236 				     u32 changes)
237 {
238 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
239 	struct cfg80211_nan_conf new_conf;
240 	int ret = 0;
241 
242 	if (sdata->vif.type != NL80211_IFTYPE_NAN)
243 		return -EOPNOTSUPP;
244 
245 	if (!ieee80211_sdata_running(sdata))
246 		return -ENETDOWN;
247 
248 	new_conf = sdata->u.nan.conf;
249 
250 	if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
251 		new_conf.master_pref = conf->master_pref;
252 
253 	if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
254 		new_conf.bands = conf->bands;
255 
256 	ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
257 	if (!ret)
258 		sdata->u.nan.conf = new_conf;
259 
260 	return ret;
261 }
262 
263 static int ieee80211_add_nan_func(struct wiphy *wiphy,
264 				  struct wireless_dev *wdev,
265 				  struct cfg80211_nan_func *nan_func)
266 {
267 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
268 	int ret;
269 
270 	if (sdata->vif.type != NL80211_IFTYPE_NAN)
271 		return -EOPNOTSUPP;
272 
273 	if (!ieee80211_sdata_running(sdata))
274 		return -ENETDOWN;
275 
276 	spin_lock_bh(&sdata->u.nan.func_lock);
277 
278 	ret = idr_alloc(&sdata->u.nan.function_inst_ids,
279 			nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
280 			GFP_ATOMIC);
281 	spin_unlock_bh(&sdata->u.nan.func_lock);
282 
283 	if (ret < 0)
284 		return ret;
285 
286 	nan_func->instance_id = ret;
287 
288 	WARN_ON(nan_func->instance_id == 0);
289 
290 	ret = drv_add_nan_func(sdata->local, sdata, nan_func);
291 	if (ret) {
292 		spin_lock_bh(&sdata->u.nan.func_lock);
293 		idr_remove(&sdata->u.nan.function_inst_ids,
294 			   nan_func->instance_id);
295 		spin_unlock_bh(&sdata->u.nan.func_lock);
296 	}
297 
298 	return ret;
299 }
300 
301 static struct cfg80211_nan_func *
302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
303 				  u64 cookie)
304 {
305 	struct cfg80211_nan_func *func;
306 	int id;
307 
308 	lockdep_assert_held(&sdata->u.nan.func_lock);
309 
310 	idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
311 		if (func->cookie == cookie)
312 			return func;
313 	}
314 
315 	return NULL;
316 }
317 
318 static void ieee80211_del_nan_func(struct wiphy *wiphy,
319 				  struct wireless_dev *wdev, u64 cookie)
320 {
321 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
322 	struct cfg80211_nan_func *func;
323 	u8 instance_id = 0;
324 
325 	if (sdata->vif.type != NL80211_IFTYPE_NAN ||
326 	    !ieee80211_sdata_running(sdata))
327 		return;
328 
329 	spin_lock_bh(&sdata->u.nan.func_lock);
330 
331 	func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
332 	if (func)
333 		instance_id = func->instance_id;
334 
335 	spin_unlock_bh(&sdata->u.nan.func_lock);
336 
337 	if (instance_id)
338 		drv_del_nan_func(sdata->local, sdata, instance_id);
339 }
340 
341 static int ieee80211_set_noack_map(struct wiphy *wiphy,
342 				  struct net_device *dev,
343 				  u16 noack_map)
344 {
345 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
346 
347 	sdata->noack_map = noack_map;
348 
349 	ieee80211_check_fast_xmit_iface(sdata);
350 
351 	return 0;
352 }
353 
354 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
355 			    const u8 *mac_addr, u8 key_idx)
356 {
357 	struct ieee80211_local *local = sdata->local;
358 	struct ieee80211_key *key;
359 	struct sta_info *sta;
360 	int ret = -EINVAL;
361 
362 	if (!wiphy_ext_feature_isset(local->hw.wiphy,
363 				     NL80211_EXT_FEATURE_EXT_KEY_ID))
364 		return -EINVAL;
365 
366 	sta = sta_info_get_bss(sdata, mac_addr);
367 
368 	if (!sta)
369 		return -EINVAL;
370 
371 	if (sta->ptk_idx == key_idx)
372 		return 0;
373 
374 	mutex_lock(&local->key_mtx);
375 	key = key_mtx_dereference(local, sta->ptk[key_idx]);
376 
377 	if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
378 		ret = ieee80211_set_tx_key(key);
379 
380 	mutex_unlock(&local->key_mtx);
381 	return ret;
382 }
383 
384 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
385 			     u8 key_idx, bool pairwise, const u8 *mac_addr,
386 			     struct key_params *params)
387 {
388 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
389 	struct ieee80211_local *local = sdata->local;
390 	struct sta_info *sta = NULL;
391 	const struct ieee80211_cipher_scheme *cs = NULL;
392 	struct ieee80211_key *key;
393 	int err;
394 
395 	if (!ieee80211_sdata_running(sdata))
396 		return -ENETDOWN;
397 
398 	if (pairwise && params->mode == NL80211_KEY_SET_TX)
399 		return ieee80211_set_tx(sdata, mac_addr, key_idx);
400 
401 	/* reject WEP and TKIP keys if WEP failed to initialize */
402 	switch (params->cipher) {
403 	case WLAN_CIPHER_SUITE_WEP40:
404 	case WLAN_CIPHER_SUITE_TKIP:
405 	case WLAN_CIPHER_SUITE_WEP104:
406 		if (WARN_ON_ONCE(fips_enabled))
407 			return -EINVAL;
408 	case WLAN_CIPHER_SUITE_CCMP:
409 	case WLAN_CIPHER_SUITE_CCMP_256:
410 	case WLAN_CIPHER_SUITE_AES_CMAC:
411 	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
412 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
413 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
414 	case WLAN_CIPHER_SUITE_GCMP:
415 	case WLAN_CIPHER_SUITE_GCMP_256:
416 		break;
417 	default:
418 		cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
419 		break;
420 	}
421 
422 	key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
423 				  params->key, params->seq_len, params->seq,
424 				  cs);
425 	if (IS_ERR(key))
426 		return PTR_ERR(key);
427 
428 	if (pairwise)
429 		key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
430 
431 	if (params->mode == NL80211_KEY_NO_TX)
432 		key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
433 
434 	mutex_lock(&local->sta_mtx);
435 
436 	if (mac_addr) {
437 		sta = sta_info_get_bss(sdata, mac_addr);
438 		/*
439 		 * The ASSOC test makes sure the driver is ready to
440 		 * receive the key. When wpa_supplicant has roamed
441 		 * using FT, it attempts to set the key before
442 		 * association has completed, this rejects that attempt
443 		 * so it will set the key again after association.
444 		 *
445 		 * TODO: accept the key if we have a station entry and
446 		 *       add it to the device after the station.
447 		 */
448 		if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
449 			ieee80211_key_free_unused(key);
450 			err = -ENOENT;
451 			goto out_unlock;
452 		}
453 	}
454 
455 	switch (sdata->vif.type) {
456 	case NL80211_IFTYPE_STATION:
457 		if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
458 			key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
459 		break;
460 	case NL80211_IFTYPE_AP:
461 	case NL80211_IFTYPE_AP_VLAN:
462 		/* Keys without a station are used for TX only */
463 		if (sta && test_sta_flag(sta, WLAN_STA_MFP))
464 			key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
465 		break;
466 	case NL80211_IFTYPE_ADHOC:
467 		/* no MFP (yet) */
468 		break;
469 	case NL80211_IFTYPE_MESH_POINT:
470 #ifdef CONFIG_MAC80211_MESH
471 		if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
472 			key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
473 		break;
474 #endif
475 	case NL80211_IFTYPE_WDS:
476 	case NL80211_IFTYPE_MONITOR:
477 	case NL80211_IFTYPE_P2P_DEVICE:
478 	case NL80211_IFTYPE_NAN:
479 	case NL80211_IFTYPE_UNSPECIFIED:
480 	case NUM_NL80211_IFTYPES:
481 	case NL80211_IFTYPE_P2P_CLIENT:
482 	case NL80211_IFTYPE_P2P_GO:
483 	case NL80211_IFTYPE_OCB:
484 		/* shouldn't happen */
485 		WARN_ON_ONCE(1);
486 		break;
487 	}
488 
489 	if (sta)
490 		sta->cipher_scheme = cs;
491 
492 	err = ieee80211_key_link(key, sdata, sta);
493 
494  out_unlock:
495 	mutex_unlock(&local->sta_mtx);
496 
497 	return err;
498 }
499 
500 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
501 			     u8 key_idx, bool pairwise, const u8 *mac_addr)
502 {
503 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
504 	struct ieee80211_local *local = sdata->local;
505 	struct sta_info *sta;
506 	struct ieee80211_key *key = NULL;
507 	int ret;
508 
509 	mutex_lock(&local->sta_mtx);
510 	mutex_lock(&local->key_mtx);
511 
512 	if (mac_addr) {
513 		ret = -ENOENT;
514 
515 		sta = sta_info_get_bss(sdata, mac_addr);
516 		if (!sta)
517 			goto out_unlock;
518 
519 		if (pairwise)
520 			key = key_mtx_dereference(local, sta->ptk[key_idx]);
521 		else
522 			key = key_mtx_dereference(local, sta->gtk[key_idx]);
523 	} else
524 		key = key_mtx_dereference(local, sdata->keys[key_idx]);
525 
526 	if (!key) {
527 		ret = -ENOENT;
528 		goto out_unlock;
529 	}
530 
531 	ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
532 
533 	ret = 0;
534  out_unlock:
535 	mutex_unlock(&local->key_mtx);
536 	mutex_unlock(&local->sta_mtx);
537 
538 	return ret;
539 }
540 
541 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
542 			     u8 key_idx, bool pairwise, const u8 *mac_addr,
543 			     void *cookie,
544 			     void (*callback)(void *cookie,
545 					      struct key_params *params))
546 {
547 	struct ieee80211_sub_if_data *sdata;
548 	struct sta_info *sta = NULL;
549 	u8 seq[6] = {0};
550 	struct key_params params;
551 	struct ieee80211_key *key = NULL;
552 	u64 pn64;
553 	u32 iv32;
554 	u16 iv16;
555 	int err = -ENOENT;
556 	struct ieee80211_key_seq kseq = {};
557 
558 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
559 
560 	rcu_read_lock();
561 
562 	if (mac_addr) {
563 		sta = sta_info_get_bss(sdata, mac_addr);
564 		if (!sta)
565 			goto out;
566 
567 		if (pairwise && key_idx < NUM_DEFAULT_KEYS)
568 			key = rcu_dereference(sta->ptk[key_idx]);
569 		else if (!pairwise &&
570 			 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
571 			 NUM_DEFAULT_BEACON_KEYS)
572 			key = rcu_dereference(sta->gtk[key_idx]);
573 	} else
574 		key = rcu_dereference(sdata->keys[key_idx]);
575 
576 	if (!key)
577 		goto out;
578 
579 	memset(&params, 0, sizeof(params));
580 
581 	params.cipher = key->conf.cipher;
582 
583 	switch (key->conf.cipher) {
584 	case WLAN_CIPHER_SUITE_TKIP:
585 		pn64 = atomic64_read(&key->conf.tx_pn);
586 		iv32 = TKIP_PN_TO_IV32(pn64);
587 		iv16 = TKIP_PN_TO_IV16(pn64);
588 
589 		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
590 		    !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
591 			drv_get_key_seq(sdata->local, key, &kseq);
592 			iv32 = kseq.tkip.iv32;
593 			iv16 = kseq.tkip.iv16;
594 		}
595 
596 		seq[0] = iv16 & 0xff;
597 		seq[1] = (iv16 >> 8) & 0xff;
598 		seq[2] = iv32 & 0xff;
599 		seq[3] = (iv32 >> 8) & 0xff;
600 		seq[4] = (iv32 >> 16) & 0xff;
601 		seq[5] = (iv32 >> 24) & 0xff;
602 		params.seq = seq;
603 		params.seq_len = 6;
604 		break;
605 	case WLAN_CIPHER_SUITE_CCMP:
606 	case WLAN_CIPHER_SUITE_CCMP_256:
607 	case WLAN_CIPHER_SUITE_AES_CMAC:
608 	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
609 		BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
610 			     offsetof(typeof(kseq), aes_cmac));
611 		fallthrough;
612 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
613 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
614 		BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
615 			     offsetof(typeof(kseq), aes_gmac));
616 		fallthrough;
617 	case WLAN_CIPHER_SUITE_GCMP:
618 	case WLAN_CIPHER_SUITE_GCMP_256:
619 		BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
620 			     offsetof(typeof(kseq), gcmp));
621 
622 		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
623 		    !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
624 			drv_get_key_seq(sdata->local, key, &kseq);
625 			memcpy(seq, kseq.ccmp.pn, 6);
626 		} else {
627 			pn64 = atomic64_read(&key->conf.tx_pn);
628 			seq[0] = pn64;
629 			seq[1] = pn64 >> 8;
630 			seq[2] = pn64 >> 16;
631 			seq[3] = pn64 >> 24;
632 			seq[4] = pn64 >> 32;
633 			seq[5] = pn64 >> 40;
634 		}
635 		params.seq = seq;
636 		params.seq_len = 6;
637 		break;
638 	default:
639 		if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
640 			break;
641 		if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
642 			break;
643 		drv_get_key_seq(sdata->local, key, &kseq);
644 		params.seq = kseq.hw.seq;
645 		params.seq_len = kseq.hw.seq_len;
646 		break;
647 	}
648 
649 	params.key = key->conf.key;
650 	params.key_len = key->conf.keylen;
651 
652 	callback(cookie, &params);
653 	err = 0;
654 
655  out:
656 	rcu_read_unlock();
657 	return err;
658 }
659 
660 static int ieee80211_config_default_key(struct wiphy *wiphy,
661 					struct net_device *dev,
662 					u8 key_idx, bool uni,
663 					bool multi)
664 {
665 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
666 
667 	ieee80211_set_default_key(sdata, key_idx, uni, multi);
668 
669 	return 0;
670 }
671 
672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
673 					     struct net_device *dev,
674 					     u8 key_idx)
675 {
676 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
677 
678 	ieee80211_set_default_mgmt_key(sdata, key_idx);
679 
680 	return 0;
681 }
682 
683 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
684 					       struct net_device *dev,
685 					       u8 key_idx)
686 {
687 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
688 
689 	ieee80211_set_default_beacon_key(sdata, key_idx);
690 
691 	return 0;
692 }
693 
694 void sta_set_rate_info_tx(struct sta_info *sta,
695 			  const struct ieee80211_tx_rate *rate,
696 			  struct rate_info *rinfo)
697 {
698 	rinfo->flags = 0;
699 	if (rate->flags & IEEE80211_TX_RC_MCS) {
700 		rinfo->flags |= RATE_INFO_FLAGS_MCS;
701 		rinfo->mcs = rate->idx;
702 	} else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
703 		rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
704 		rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
705 		rinfo->nss = ieee80211_rate_get_vht_nss(rate);
706 	} else {
707 		struct ieee80211_supported_band *sband;
708 		int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
709 		u16 brate;
710 
711 		sband = ieee80211_get_sband(sta->sdata);
712 		if (sband) {
713 			brate = sband->bitrates[rate->idx].bitrate;
714 			rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
715 		}
716 	}
717 	if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
718 		rinfo->bw = RATE_INFO_BW_40;
719 	else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
720 		rinfo->bw = RATE_INFO_BW_80;
721 	else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
722 		rinfo->bw = RATE_INFO_BW_160;
723 	else
724 		rinfo->bw = RATE_INFO_BW_20;
725 	if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
726 		rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
727 }
728 
729 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
730 				  int idx, u8 *mac, struct station_info *sinfo)
731 {
732 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
733 	struct ieee80211_local *local = sdata->local;
734 	struct sta_info *sta;
735 	int ret = -ENOENT;
736 
737 	mutex_lock(&local->sta_mtx);
738 
739 	sta = sta_info_get_by_idx(sdata, idx);
740 	if (sta) {
741 		ret = 0;
742 		memcpy(mac, sta->sta.addr, ETH_ALEN);
743 		sta_set_sinfo(sta, sinfo, true);
744 	}
745 
746 	mutex_unlock(&local->sta_mtx);
747 
748 	return ret;
749 }
750 
751 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
752 				 int idx, struct survey_info *survey)
753 {
754 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
755 
756 	return drv_get_survey(local, idx, survey);
757 }
758 
759 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
760 				 const u8 *mac, struct station_info *sinfo)
761 {
762 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
763 	struct ieee80211_local *local = sdata->local;
764 	struct sta_info *sta;
765 	int ret = -ENOENT;
766 
767 	mutex_lock(&local->sta_mtx);
768 
769 	sta = sta_info_get_bss(sdata, mac);
770 	if (sta) {
771 		ret = 0;
772 		sta_set_sinfo(sta, sinfo, true);
773 	}
774 
775 	mutex_unlock(&local->sta_mtx);
776 
777 	return ret;
778 }
779 
780 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
781 					 struct cfg80211_chan_def *chandef)
782 {
783 	struct ieee80211_local *local = wiphy_priv(wiphy);
784 	struct ieee80211_sub_if_data *sdata;
785 	int ret = 0;
786 
787 	if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
788 		return 0;
789 
790 	mutex_lock(&local->mtx);
791 	if (local->use_chanctx) {
792 		sdata = rtnl_dereference(local->monitor_sdata);
793 		if (sdata) {
794 			ieee80211_vif_release_channel(sdata);
795 			ret = ieee80211_vif_use_channel(sdata, chandef,
796 					IEEE80211_CHANCTX_EXCLUSIVE);
797 		}
798 	} else if (local->open_count == local->monitors) {
799 		local->_oper_chandef = *chandef;
800 		ieee80211_hw_config(local, 0);
801 	}
802 
803 	if (ret == 0)
804 		local->monitor_chandef = *chandef;
805 	mutex_unlock(&local->mtx);
806 
807 	return ret;
808 }
809 
810 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
811 				    const u8 *resp, size_t resp_len,
812 				    const struct ieee80211_csa_settings *csa)
813 {
814 	struct probe_resp *new, *old;
815 
816 	if (!resp || !resp_len)
817 		return 1;
818 
819 	old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
820 
821 	new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
822 	if (!new)
823 		return -ENOMEM;
824 
825 	new->len = resp_len;
826 	memcpy(new->data, resp, resp_len);
827 
828 	if (csa)
829 		memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
830 		       csa->n_counter_offsets_presp *
831 		       sizeof(new->csa_counter_offsets[0]));
832 
833 	rcu_assign_pointer(sdata->u.ap.probe_resp, new);
834 	if (old)
835 		kfree_rcu(old, rcu_head);
836 
837 	return 0;
838 }
839 
840 static int ieee80211_set_ftm_responder_params(
841 				struct ieee80211_sub_if_data *sdata,
842 				const u8 *lci, size_t lci_len,
843 				const u8 *civicloc, size_t civicloc_len)
844 {
845 	struct ieee80211_ftm_responder_params *new, *old;
846 	struct ieee80211_bss_conf *bss_conf;
847 	u8 *pos;
848 	int len;
849 
850 	if (!lci_len && !civicloc_len)
851 		return 0;
852 
853 	bss_conf = &sdata->vif.bss_conf;
854 	old = bss_conf->ftmr_params;
855 	len = lci_len + civicloc_len;
856 
857 	new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
858 	if (!new)
859 		return -ENOMEM;
860 
861 	pos = (u8 *)(new + 1);
862 	if (lci_len) {
863 		new->lci_len = lci_len;
864 		new->lci = pos;
865 		memcpy(pos, lci, lci_len);
866 		pos += lci_len;
867 	}
868 
869 	if (civicloc_len) {
870 		new->civicloc_len = civicloc_len;
871 		new->civicloc = pos;
872 		memcpy(pos, civicloc, civicloc_len);
873 		pos += civicloc_len;
874 	}
875 
876 	bss_conf->ftmr_params = new;
877 	kfree(old);
878 
879 	return 0;
880 }
881 
882 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
883 				   struct cfg80211_beacon_data *params,
884 				   const struct ieee80211_csa_settings *csa)
885 {
886 	struct beacon_data *new, *old;
887 	int new_head_len, new_tail_len;
888 	int size, err;
889 	u32 changed = BSS_CHANGED_BEACON;
890 
891 	old = sdata_dereference(sdata->u.ap.beacon, sdata);
892 
893 
894 	/* Need to have a beacon head if we don't have one yet */
895 	if (!params->head && !old)
896 		return -EINVAL;
897 
898 	/* new or old head? */
899 	if (params->head)
900 		new_head_len = params->head_len;
901 	else
902 		new_head_len = old->head_len;
903 
904 	/* new or old tail? */
905 	if (params->tail || !old)
906 		/* params->tail_len will be zero for !params->tail */
907 		new_tail_len = params->tail_len;
908 	else
909 		new_tail_len = old->tail_len;
910 
911 	size = sizeof(*new) + new_head_len + new_tail_len;
912 
913 	new = kzalloc(size, GFP_KERNEL);
914 	if (!new)
915 		return -ENOMEM;
916 
917 	/* start filling the new info now */
918 
919 	/*
920 	 * pointers go into the block we allocated,
921 	 * memory is | beacon_data | head | tail |
922 	 */
923 	new->head = ((u8 *) new) + sizeof(*new);
924 	new->tail = new->head + new_head_len;
925 	new->head_len = new_head_len;
926 	new->tail_len = new_tail_len;
927 
928 	if (csa) {
929 		new->csa_current_counter = csa->count;
930 		memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
931 		       csa->n_counter_offsets_beacon *
932 		       sizeof(new->csa_counter_offsets[0]));
933 	}
934 
935 	/* copy in head */
936 	if (params->head)
937 		memcpy(new->head, params->head, new_head_len);
938 	else
939 		memcpy(new->head, old->head, new_head_len);
940 
941 	/* copy in optional tail */
942 	if (params->tail)
943 		memcpy(new->tail, params->tail, new_tail_len);
944 	else
945 		if (old)
946 			memcpy(new->tail, old->tail, new_tail_len);
947 
948 	err = ieee80211_set_probe_resp(sdata, params->probe_resp,
949 				       params->probe_resp_len, csa);
950 	if (err < 0) {
951 		kfree(new);
952 		return err;
953 	}
954 	if (err == 0)
955 		changed |= BSS_CHANGED_AP_PROBE_RESP;
956 
957 	if (params->ftm_responder != -1) {
958 		sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
959 		err = ieee80211_set_ftm_responder_params(sdata,
960 							 params->lci,
961 							 params->lci_len,
962 							 params->civicloc,
963 							 params->civicloc_len);
964 
965 		if (err < 0) {
966 			kfree(new);
967 			return err;
968 		}
969 
970 		changed |= BSS_CHANGED_FTM_RESPONDER;
971 	}
972 
973 	rcu_assign_pointer(sdata->u.ap.beacon, new);
974 
975 	if (old)
976 		kfree_rcu(old, rcu_head);
977 
978 	return changed;
979 }
980 
981 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
982 			      struct cfg80211_ap_settings *params)
983 {
984 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
985 	struct ieee80211_local *local = sdata->local;
986 	struct beacon_data *old;
987 	struct ieee80211_sub_if_data *vlan;
988 	u32 changed = BSS_CHANGED_BEACON_INT |
989 		      BSS_CHANGED_BEACON_ENABLED |
990 		      BSS_CHANGED_BEACON |
991 		      BSS_CHANGED_SSID |
992 		      BSS_CHANGED_P2P_PS |
993 		      BSS_CHANGED_TXPOWER |
994 		      BSS_CHANGED_TWT;
995 	int i, err;
996 	int prev_beacon_int;
997 
998 	old = sdata_dereference(sdata->u.ap.beacon, sdata);
999 	if (old)
1000 		return -EALREADY;
1001 
1002 	if (params->smps_mode != NL80211_SMPS_OFF)
1003 		return -ENOTSUPP;
1004 
1005 	sdata->smps_mode = IEEE80211_SMPS_OFF;
1006 
1007 	sdata->needed_rx_chains = sdata->local->rx_chains;
1008 
1009 	prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1010 	sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1011 
1012 	if (params->he_cap && params->he_oper) {
1013 		sdata->vif.bss_conf.he_support = true;
1014 		sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1015 			le32_get_bits(params->he_oper->he_oper_params,
1016 			      IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1017 		sdata->vif.bss_conf.frame_time_rts_th =
1018 			le32_get_bits(params->he_oper->he_oper_params,
1019 			      IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1020 		changed |= BSS_CHANGED_HE_OBSS_PD;
1021 
1022 		if (params->he_bss_color.enabled)
1023 			changed |= BSS_CHANGED_HE_BSS_COLOR;
1024 	}
1025 
1026 	mutex_lock(&local->mtx);
1027 	err = ieee80211_vif_use_channel(sdata, &params->chandef,
1028 					IEEE80211_CHANCTX_SHARED);
1029 	if (!err)
1030 		ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1031 	mutex_unlock(&local->mtx);
1032 	if (err) {
1033 		sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1034 		return err;
1035 	}
1036 
1037 	/*
1038 	 * Apply control port protocol, this allows us to
1039 	 * not encrypt dynamic WEP control frames.
1040 	 */
1041 	sdata->control_port_protocol = params->crypto.control_port_ethertype;
1042 	sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1043 	sdata->control_port_over_nl80211 =
1044 				params->crypto.control_port_over_nl80211;
1045 	sdata->control_port_no_preauth =
1046 				params->crypto.control_port_no_preauth;
1047 	sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1048 							&params->crypto,
1049 							sdata->vif.type);
1050 
1051 	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1052 		vlan->control_port_protocol =
1053 			params->crypto.control_port_ethertype;
1054 		vlan->control_port_no_encrypt =
1055 			params->crypto.control_port_no_encrypt;
1056 		vlan->control_port_over_nl80211 =
1057 			params->crypto.control_port_over_nl80211;
1058 		vlan->control_port_no_preauth =
1059 			params->crypto.control_port_no_preauth;
1060 		vlan->encrypt_headroom =
1061 			ieee80211_cs_headroom(sdata->local,
1062 					      &params->crypto,
1063 					      vlan->vif.type);
1064 	}
1065 
1066 	sdata->vif.bss_conf.dtim_period = params->dtim_period;
1067 	sdata->vif.bss_conf.enable_beacon = true;
1068 	sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1069 	sdata->vif.bss_conf.twt_responder = params->twt_responder;
1070 	memcpy(&sdata->vif.bss_conf.he_obss_pd, &params->he_obss_pd,
1071 	       sizeof(struct ieee80211_he_obss_pd));
1072 	memcpy(&sdata->vif.bss_conf.he_bss_color, &params->he_bss_color,
1073 	       sizeof(struct ieee80211_he_bss_color));
1074 
1075 	sdata->vif.bss_conf.ssid_len = params->ssid_len;
1076 	if (params->ssid_len)
1077 		memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1078 		       params->ssid_len);
1079 	sdata->vif.bss_conf.hidden_ssid =
1080 		(params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1081 
1082 	memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1083 	       sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1084 	sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1085 		params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1086 	if (params->p2p_opp_ps)
1087 		sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1088 					IEEE80211_P2P_OPPPS_ENABLE_BIT;
1089 
1090 	sdata->beacon_rate_set = false;
1091 	if (wiphy_ext_feature_isset(local->hw.wiphy,
1092 				    NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1093 		for (i = 0; i < NUM_NL80211_BANDS; i++) {
1094 			sdata->beacon_rateidx_mask[i] =
1095 				params->beacon_rate.control[i].legacy;
1096 			if (sdata->beacon_rateidx_mask[i])
1097 				sdata->beacon_rate_set = true;
1098 		}
1099 	}
1100 
1101 	err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1102 	if (err < 0) {
1103 		ieee80211_vif_release_channel(sdata);
1104 		return err;
1105 	}
1106 	changed |= err;
1107 
1108 	err = drv_start_ap(sdata->local, sdata);
1109 	if (err) {
1110 		old = sdata_dereference(sdata->u.ap.beacon, sdata);
1111 
1112 		if (old)
1113 			kfree_rcu(old, rcu_head);
1114 		RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1115 		ieee80211_vif_release_channel(sdata);
1116 		return err;
1117 	}
1118 
1119 	ieee80211_recalc_dtim(local, sdata);
1120 	ieee80211_bss_info_change_notify(sdata, changed);
1121 
1122 	netif_carrier_on(dev);
1123 	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1124 		netif_carrier_on(vlan->dev);
1125 
1126 	return 0;
1127 }
1128 
1129 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1130 				   struct cfg80211_beacon_data *params)
1131 {
1132 	struct ieee80211_sub_if_data *sdata;
1133 	struct beacon_data *old;
1134 	int err;
1135 
1136 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1137 	sdata_assert_lock(sdata);
1138 
1139 	/* don't allow changing the beacon while CSA is in place - offset
1140 	 * of channel switch counter may change
1141 	 */
1142 	if (sdata->vif.csa_active)
1143 		return -EBUSY;
1144 
1145 	old = sdata_dereference(sdata->u.ap.beacon, sdata);
1146 	if (!old)
1147 		return -ENOENT;
1148 
1149 	err = ieee80211_assign_beacon(sdata, params, NULL);
1150 	if (err < 0)
1151 		return err;
1152 	ieee80211_bss_info_change_notify(sdata, err);
1153 	return 0;
1154 }
1155 
1156 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1157 {
1158 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1159 	struct ieee80211_sub_if_data *vlan;
1160 	struct ieee80211_local *local = sdata->local;
1161 	struct beacon_data *old_beacon;
1162 	struct probe_resp *old_probe_resp;
1163 	struct cfg80211_chan_def chandef;
1164 
1165 	sdata_assert_lock(sdata);
1166 
1167 	old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1168 	if (!old_beacon)
1169 		return -ENOENT;
1170 	old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1171 
1172 	/* abort any running channel switch */
1173 	mutex_lock(&local->mtx);
1174 	sdata->vif.csa_active = false;
1175 	if (sdata->csa_block_tx) {
1176 		ieee80211_wake_vif_queues(local, sdata,
1177 					  IEEE80211_QUEUE_STOP_REASON_CSA);
1178 		sdata->csa_block_tx = false;
1179 	}
1180 
1181 	mutex_unlock(&local->mtx);
1182 
1183 	kfree(sdata->u.ap.next_beacon);
1184 	sdata->u.ap.next_beacon = NULL;
1185 
1186 	/* turn off carrier for this interface and dependent VLANs */
1187 	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1188 		netif_carrier_off(vlan->dev);
1189 	netif_carrier_off(dev);
1190 
1191 	/* remove beacon and probe response */
1192 	RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1193 	RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1194 	kfree_rcu(old_beacon, rcu_head);
1195 	if (old_probe_resp)
1196 		kfree_rcu(old_probe_resp, rcu_head);
1197 
1198 	kfree(sdata->vif.bss_conf.ftmr_params);
1199 	sdata->vif.bss_conf.ftmr_params = NULL;
1200 
1201 	__sta_info_flush(sdata, true);
1202 	ieee80211_free_keys(sdata, true);
1203 
1204 	sdata->vif.bss_conf.enable_beacon = false;
1205 	sdata->beacon_rate_set = false;
1206 	sdata->vif.bss_conf.ssid_len = 0;
1207 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1208 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1209 
1210 	if (sdata->wdev.cac_started) {
1211 		chandef = sdata->vif.bss_conf.chandef;
1212 		cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1213 		cfg80211_cac_event(sdata->dev, &chandef,
1214 				   NL80211_RADAR_CAC_ABORTED,
1215 				   GFP_KERNEL);
1216 	}
1217 
1218 	drv_stop_ap(sdata->local, sdata);
1219 
1220 	/* free all potentially still buffered bcast frames */
1221 	local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1222 	ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1223 
1224 	mutex_lock(&local->mtx);
1225 	ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1226 	ieee80211_vif_release_channel(sdata);
1227 	mutex_unlock(&local->mtx);
1228 
1229 	return 0;
1230 }
1231 
1232 static int sta_apply_auth_flags(struct ieee80211_local *local,
1233 				struct sta_info *sta,
1234 				u32 mask, u32 set)
1235 {
1236 	int ret;
1237 
1238 	if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1239 	    set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1240 	    !test_sta_flag(sta, WLAN_STA_AUTH)) {
1241 		ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1242 		if (ret)
1243 			return ret;
1244 	}
1245 
1246 	if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1247 	    set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1248 	    !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1249 		/*
1250 		 * When peer becomes associated, init rate control as
1251 		 * well. Some drivers require rate control initialized
1252 		 * before drv_sta_state() is called.
1253 		 */
1254 		if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1255 			rate_control_rate_init(sta);
1256 
1257 		ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1258 		if (ret)
1259 			return ret;
1260 	}
1261 
1262 	if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1263 		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1264 			ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1265 		else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1266 			ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1267 		else
1268 			ret = 0;
1269 		if (ret)
1270 			return ret;
1271 	}
1272 
1273 	if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1274 	    !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1275 	    test_sta_flag(sta, WLAN_STA_ASSOC)) {
1276 		ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1277 		if (ret)
1278 			return ret;
1279 	}
1280 
1281 	if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1282 	    !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1283 	    test_sta_flag(sta, WLAN_STA_AUTH)) {
1284 		ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1285 		if (ret)
1286 			return ret;
1287 	}
1288 
1289 	return 0;
1290 }
1291 
1292 static void sta_apply_mesh_params(struct ieee80211_local *local,
1293 				  struct sta_info *sta,
1294 				  struct station_parameters *params)
1295 {
1296 #ifdef CONFIG_MAC80211_MESH
1297 	struct ieee80211_sub_if_data *sdata = sta->sdata;
1298 	u32 changed = 0;
1299 
1300 	if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1301 		switch (params->plink_state) {
1302 		case NL80211_PLINK_ESTAB:
1303 			if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1304 				changed = mesh_plink_inc_estab_count(sdata);
1305 			sta->mesh->plink_state = params->plink_state;
1306 			sta->mesh->aid = params->peer_aid;
1307 
1308 			ieee80211_mps_sta_status_update(sta);
1309 			changed |= ieee80211_mps_set_sta_local_pm(sta,
1310 				      sdata->u.mesh.mshcfg.power_mode);
1311 
1312 			ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1313 			/* init at low value */
1314 			ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1315 
1316 			break;
1317 		case NL80211_PLINK_LISTEN:
1318 		case NL80211_PLINK_BLOCKED:
1319 		case NL80211_PLINK_OPN_SNT:
1320 		case NL80211_PLINK_OPN_RCVD:
1321 		case NL80211_PLINK_CNF_RCVD:
1322 		case NL80211_PLINK_HOLDING:
1323 			if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1324 				changed = mesh_plink_dec_estab_count(sdata);
1325 			sta->mesh->plink_state = params->plink_state;
1326 
1327 			ieee80211_mps_sta_status_update(sta);
1328 			changed |= ieee80211_mps_set_sta_local_pm(sta,
1329 					NL80211_MESH_POWER_UNKNOWN);
1330 			break;
1331 		default:
1332 			/*  nothing  */
1333 			break;
1334 		}
1335 	}
1336 
1337 	switch (params->plink_action) {
1338 	case NL80211_PLINK_ACTION_NO_ACTION:
1339 		/* nothing */
1340 		break;
1341 	case NL80211_PLINK_ACTION_OPEN:
1342 		changed |= mesh_plink_open(sta);
1343 		break;
1344 	case NL80211_PLINK_ACTION_BLOCK:
1345 		changed |= mesh_plink_block(sta);
1346 		break;
1347 	}
1348 
1349 	if (params->local_pm)
1350 		changed |= ieee80211_mps_set_sta_local_pm(sta,
1351 							  params->local_pm);
1352 
1353 	ieee80211_mbss_info_change_notify(sdata, changed);
1354 #endif
1355 }
1356 
1357 static int sta_apply_parameters(struct ieee80211_local *local,
1358 				struct sta_info *sta,
1359 				struct station_parameters *params)
1360 {
1361 	int ret = 0;
1362 	struct ieee80211_supported_band *sband;
1363 	struct ieee80211_sub_if_data *sdata = sta->sdata;
1364 	u32 mask, set;
1365 
1366 	sband = ieee80211_get_sband(sdata);
1367 	if (!sband)
1368 		return -EINVAL;
1369 
1370 	mask = params->sta_flags_mask;
1371 	set = params->sta_flags_set;
1372 
1373 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
1374 		/*
1375 		 * In mesh mode, ASSOCIATED isn't part of the nl80211
1376 		 * API but must follow AUTHENTICATED for driver state.
1377 		 */
1378 		if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1379 			mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1380 		if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1381 			set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1382 	} else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1383 		/*
1384 		 * TDLS -- everything follows authorized, but
1385 		 * only becoming authorized is possible, not
1386 		 * going back
1387 		 */
1388 		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1389 			set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1390 			       BIT(NL80211_STA_FLAG_ASSOCIATED);
1391 			mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1392 				BIT(NL80211_STA_FLAG_ASSOCIATED);
1393 		}
1394 	}
1395 
1396 	if (mask & BIT(NL80211_STA_FLAG_WME) &&
1397 	    local->hw.queues >= IEEE80211_NUM_ACS)
1398 		sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1399 
1400 	/* auth flags will be set later for TDLS,
1401 	 * and for unassociated stations that move to assocaited */
1402 	if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1403 	    !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1404 	      (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1405 		ret = sta_apply_auth_flags(local, sta, mask, set);
1406 		if (ret)
1407 			return ret;
1408 	}
1409 
1410 	if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1411 		if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1412 			set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1413 		else
1414 			clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1415 	}
1416 
1417 	if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1418 		sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1419 		if (set & BIT(NL80211_STA_FLAG_MFP))
1420 			set_sta_flag(sta, WLAN_STA_MFP);
1421 		else
1422 			clear_sta_flag(sta, WLAN_STA_MFP);
1423 	}
1424 
1425 	if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1426 		if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1427 			set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1428 		else
1429 			clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1430 	}
1431 
1432 	/* mark TDLS channel switch support, if the AP allows it */
1433 	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1434 	    !sdata->u.mgd.tdls_chan_switch_prohibited &&
1435 	    params->ext_capab_len >= 4 &&
1436 	    params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1437 		set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1438 
1439 	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1440 	    !sdata->u.mgd.tdls_wider_bw_prohibited &&
1441 	    ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1442 	    params->ext_capab_len >= 8 &&
1443 	    params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1444 		set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1445 
1446 	if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1447 		sta->sta.uapsd_queues = params->uapsd_queues;
1448 		sta->sta.max_sp = params->max_sp;
1449 	}
1450 
1451 	/* The sender might not have sent the last bit, consider it to be 0 */
1452 	if (params->ext_capab_len >= 8) {
1453 		u8 val = (params->ext_capab[7] &
1454 			  WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1455 
1456 		/* we did get all the bits, take the MSB as well */
1457 		if (params->ext_capab_len >= 9) {
1458 			u8 val_msb = params->ext_capab[8] &
1459 				WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1460 			val_msb <<= 1;
1461 			val |= val_msb;
1462 		}
1463 
1464 		switch (val) {
1465 		case 1:
1466 			sta->sta.max_amsdu_subframes = 32;
1467 			break;
1468 		case 2:
1469 			sta->sta.max_amsdu_subframes = 16;
1470 			break;
1471 		case 3:
1472 			sta->sta.max_amsdu_subframes = 8;
1473 			break;
1474 		default:
1475 			sta->sta.max_amsdu_subframes = 0;
1476 		}
1477 	}
1478 
1479 	/*
1480 	 * cfg80211 validates this (1-2007) and allows setting the AID
1481 	 * only when creating a new station entry
1482 	 */
1483 	if (params->aid)
1484 		sta->sta.aid = params->aid;
1485 
1486 	/*
1487 	 * Some of the following updates would be racy if called on an
1488 	 * existing station, via ieee80211_change_station(). However,
1489 	 * all such changes are rejected by cfg80211 except for updates
1490 	 * changing the supported rates on an existing but not yet used
1491 	 * TDLS peer.
1492 	 */
1493 
1494 	if (params->listen_interval >= 0)
1495 		sta->listen_interval = params->listen_interval;
1496 
1497 	if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1498 		sta->sta.txpwr.type = params->txpwr.type;
1499 		if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1500 			sta->sta.txpwr.power = params->txpwr.power;
1501 		ret = drv_sta_set_txpwr(local, sdata, sta);
1502 		if (ret)
1503 			return ret;
1504 	}
1505 
1506 	if (params->supported_rates && params->supported_rates_len) {
1507 		ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1508 					 sband, params->supported_rates,
1509 					 params->supported_rates_len,
1510 					 &sta->sta.supp_rates[sband->band]);
1511 	}
1512 
1513 	if (params->ht_capa)
1514 		ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1515 						  params->ht_capa, sta);
1516 
1517 	/* VHT can override some HT caps such as the A-MSDU max length */
1518 	if (params->vht_capa)
1519 		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1520 						    params->vht_capa, sta);
1521 
1522 	if (params->he_capa)
1523 		ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1524 						  (void *)params->he_capa,
1525 						  params->he_capa_len,
1526 						  (void *)params->he_6ghz_capa,
1527 						  sta);
1528 
1529 	if (params->opmode_notif_used) {
1530 		/* returned value is only needed for rc update, but the
1531 		 * rc isn't initialized here yet, so ignore it
1532 		 */
1533 		__ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1534 					      sband->band);
1535 	}
1536 
1537 	if (params->support_p2p_ps >= 0)
1538 		sta->sta.support_p2p_ps = params->support_p2p_ps;
1539 
1540 	if (ieee80211_vif_is_mesh(&sdata->vif))
1541 		sta_apply_mesh_params(local, sta, params);
1542 
1543 	if (params->airtime_weight)
1544 		sta->airtime_weight = params->airtime_weight;
1545 
1546 	/* set the STA state after all sta info from usermode has been set */
1547 	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1548 	    set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1549 		ret = sta_apply_auth_flags(local, sta, mask, set);
1550 		if (ret)
1551 			return ret;
1552 	}
1553 
1554 	return 0;
1555 }
1556 
1557 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1558 				 const u8 *mac,
1559 				 struct station_parameters *params)
1560 {
1561 	struct ieee80211_local *local = wiphy_priv(wiphy);
1562 	struct sta_info *sta;
1563 	struct ieee80211_sub_if_data *sdata;
1564 	int err;
1565 
1566 	if (params->vlan) {
1567 		sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1568 
1569 		if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1570 		    sdata->vif.type != NL80211_IFTYPE_AP)
1571 			return -EINVAL;
1572 	} else
1573 		sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1574 
1575 	if (ether_addr_equal(mac, sdata->vif.addr))
1576 		return -EINVAL;
1577 
1578 	if (!is_valid_ether_addr(mac))
1579 		return -EINVAL;
1580 
1581 	if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1582 	    sdata->vif.type == NL80211_IFTYPE_STATION &&
1583 	    !sdata->u.mgd.associated)
1584 		return -EINVAL;
1585 
1586 	sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1587 	if (!sta)
1588 		return -ENOMEM;
1589 
1590 	if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1591 		sta->sta.tdls = true;
1592 
1593 	err = sta_apply_parameters(local, sta, params);
1594 	if (err) {
1595 		sta_info_free(local, sta);
1596 		return err;
1597 	}
1598 
1599 	/*
1600 	 * for TDLS and for unassociated station, rate control should be
1601 	 * initialized only when rates are known and station is marked
1602 	 * authorized/associated
1603 	 */
1604 	if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1605 	    test_sta_flag(sta, WLAN_STA_ASSOC))
1606 		rate_control_rate_init(sta);
1607 
1608 	err = sta_info_insert_rcu(sta);
1609 	if (err) {
1610 		rcu_read_unlock();
1611 		return err;
1612 	}
1613 
1614 	rcu_read_unlock();
1615 
1616 	return 0;
1617 }
1618 
1619 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1620 				 struct station_del_parameters *params)
1621 {
1622 	struct ieee80211_sub_if_data *sdata;
1623 
1624 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1625 
1626 	if (params->mac)
1627 		return sta_info_destroy_addr_bss(sdata, params->mac);
1628 
1629 	sta_info_flush(sdata);
1630 	return 0;
1631 }
1632 
1633 static int ieee80211_change_station(struct wiphy *wiphy,
1634 				    struct net_device *dev, const u8 *mac,
1635 				    struct station_parameters *params)
1636 {
1637 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1638 	struct ieee80211_local *local = wiphy_priv(wiphy);
1639 	struct sta_info *sta;
1640 	struct ieee80211_sub_if_data *vlansdata;
1641 	enum cfg80211_station_type statype;
1642 	int err;
1643 
1644 	mutex_lock(&local->sta_mtx);
1645 
1646 	sta = sta_info_get_bss(sdata, mac);
1647 	if (!sta) {
1648 		err = -ENOENT;
1649 		goto out_err;
1650 	}
1651 
1652 	switch (sdata->vif.type) {
1653 	case NL80211_IFTYPE_MESH_POINT:
1654 		if (sdata->u.mesh.user_mpm)
1655 			statype = CFG80211_STA_MESH_PEER_USER;
1656 		else
1657 			statype = CFG80211_STA_MESH_PEER_KERNEL;
1658 		break;
1659 	case NL80211_IFTYPE_ADHOC:
1660 		statype = CFG80211_STA_IBSS;
1661 		break;
1662 	case NL80211_IFTYPE_STATION:
1663 		if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1664 			statype = CFG80211_STA_AP_STA;
1665 			break;
1666 		}
1667 		if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1668 			statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1669 		else
1670 			statype = CFG80211_STA_TDLS_PEER_SETUP;
1671 		break;
1672 	case NL80211_IFTYPE_AP:
1673 	case NL80211_IFTYPE_AP_VLAN:
1674 		if (test_sta_flag(sta, WLAN_STA_ASSOC))
1675 			statype = CFG80211_STA_AP_CLIENT;
1676 		else
1677 			statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1678 		break;
1679 	default:
1680 		err = -EOPNOTSUPP;
1681 		goto out_err;
1682 	}
1683 
1684 	err = cfg80211_check_station_change(wiphy, params, statype);
1685 	if (err)
1686 		goto out_err;
1687 
1688 	if (params->vlan && params->vlan != sta->sdata->dev) {
1689 		vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1690 
1691 		if (params->vlan->ieee80211_ptr->use_4addr) {
1692 			if (vlansdata->u.vlan.sta) {
1693 				err = -EBUSY;
1694 				goto out_err;
1695 			}
1696 
1697 			rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1698 			__ieee80211_check_fast_rx_iface(vlansdata);
1699 		}
1700 
1701 		if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1702 		    sta->sdata->u.vlan.sta)
1703 			RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1704 
1705 		if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1706 			ieee80211_vif_dec_num_mcast(sta->sdata);
1707 
1708 		sta->sdata = vlansdata;
1709 		ieee80211_check_fast_xmit(sta);
1710 
1711 		if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1712 			ieee80211_vif_inc_num_mcast(sta->sdata);
1713 			cfg80211_send_layer2_update(sta->sdata->dev,
1714 						    sta->sta.addr);
1715 		}
1716 	}
1717 
1718 	err = sta_apply_parameters(local, sta, params);
1719 	if (err)
1720 		goto out_err;
1721 
1722 	mutex_unlock(&local->sta_mtx);
1723 
1724 	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1725 	    params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1726 		ieee80211_recalc_ps(local);
1727 		ieee80211_recalc_ps_vif(sdata);
1728 	}
1729 
1730 	return 0;
1731 out_err:
1732 	mutex_unlock(&local->sta_mtx);
1733 	return err;
1734 }
1735 
1736 #ifdef CONFIG_MAC80211_MESH
1737 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1738 			       const u8 *dst, const u8 *next_hop)
1739 {
1740 	struct ieee80211_sub_if_data *sdata;
1741 	struct mesh_path *mpath;
1742 	struct sta_info *sta;
1743 
1744 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1745 
1746 	rcu_read_lock();
1747 	sta = sta_info_get(sdata, next_hop);
1748 	if (!sta) {
1749 		rcu_read_unlock();
1750 		return -ENOENT;
1751 	}
1752 
1753 	mpath = mesh_path_add(sdata, dst);
1754 	if (IS_ERR(mpath)) {
1755 		rcu_read_unlock();
1756 		return PTR_ERR(mpath);
1757 	}
1758 
1759 	mesh_path_fix_nexthop(mpath, sta);
1760 
1761 	rcu_read_unlock();
1762 	return 0;
1763 }
1764 
1765 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1766 			       const u8 *dst)
1767 {
1768 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1769 
1770 	if (dst)
1771 		return mesh_path_del(sdata, dst);
1772 
1773 	mesh_path_flush_by_iface(sdata);
1774 	return 0;
1775 }
1776 
1777 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1778 				  const u8 *dst, const u8 *next_hop)
1779 {
1780 	struct ieee80211_sub_if_data *sdata;
1781 	struct mesh_path *mpath;
1782 	struct sta_info *sta;
1783 
1784 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1785 
1786 	rcu_read_lock();
1787 
1788 	sta = sta_info_get(sdata, next_hop);
1789 	if (!sta) {
1790 		rcu_read_unlock();
1791 		return -ENOENT;
1792 	}
1793 
1794 	mpath = mesh_path_lookup(sdata, dst);
1795 	if (!mpath) {
1796 		rcu_read_unlock();
1797 		return -ENOENT;
1798 	}
1799 
1800 	mesh_path_fix_nexthop(mpath, sta);
1801 
1802 	rcu_read_unlock();
1803 	return 0;
1804 }
1805 
1806 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1807 			    struct mpath_info *pinfo)
1808 {
1809 	struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1810 
1811 	if (next_hop_sta)
1812 		memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1813 	else
1814 		eth_zero_addr(next_hop);
1815 
1816 	memset(pinfo, 0, sizeof(*pinfo));
1817 
1818 	pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1819 
1820 	pinfo->filled = MPATH_INFO_FRAME_QLEN |
1821 			MPATH_INFO_SN |
1822 			MPATH_INFO_METRIC |
1823 			MPATH_INFO_EXPTIME |
1824 			MPATH_INFO_DISCOVERY_TIMEOUT |
1825 			MPATH_INFO_DISCOVERY_RETRIES |
1826 			MPATH_INFO_FLAGS |
1827 			MPATH_INFO_HOP_COUNT |
1828 			MPATH_INFO_PATH_CHANGE;
1829 
1830 	pinfo->frame_qlen = mpath->frame_queue.qlen;
1831 	pinfo->sn = mpath->sn;
1832 	pinfo->metric = mpath->metric;
1833 	if (time_before(jiffies, mpath->exp_time))
1834 		pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1835 	pinfo->discovery_timeout =
1836 			jiffies_to_msecs(mpath->discovery_timeout);
1837 	pinfo->discovery_retries = mpath->discovery_retries;
1838 	if (mpath->flags & MESH_PATH_ACTIVE)
1839 		pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1840 	if (mpath->flags & MESH_PATH_RESOLVING)
1841 		pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1842 	if (mpath->flags & MESH_PATH_SN_VALID)
1843 		pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1844 	if (mpath->flags & MESH_PATH_FIXED)
1845 		pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1846 	if (mpath->flags & MESH_PATH_RESOLVED)
1847 		pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1848 	pinfo->hop_count = mpath->hop_count;
1849 	pinfo->path_change_count = mpath->path_change_count;
1850 }
1851 
1852 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1853 			       u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1854 
1855 {
1856 	struct ieee80211_sub_if_data *sdata;
1857 	struct mesh_path *mpath;
1858 
1859 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1860 
1861 	rcu_read_lock();
1862 	mpath = mesh_path_lookup(sdata, dst);
1863 	if (!mpath) {
1864 		rcu_read_unlock();
1865 		return -ENOENT;
1866 	}
1867 	memcpy(dst, mpath->dst, ETH_ALEN);
1868 	mpath_set_pinfo(mpath, next_hop, pinfo);
1869 	rcu_read_unlock();
1870 	return 0;
1871 }
1872 
1873 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1874 				int idx, u8 *dst, u8 *next_hop,
1875 				struct mpath_info *pinfo)
1876 {
1877 	struct ieee80211_sub_if_data *sdata;
1878 	struct mesh_path *mpath;
1879 
1880 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1881 
1882 	rcu_read_lock();
1883 	mpath = mesh_path_lookup_by_idx(sdata, idx);
1884 	if (!mpath) {
1885 		rcu_read_unlock();
1886 		return -ENOENT;
1887 	}
1888 	memcpy(dst, mpath->dst, ETH_ALEN);
1889 	mpath_set_pinfo(mpath, next_hop, pinfo);
1890 	rcu_read_unlock();
1891 	return 0;
1892 }
1893 
1894 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1895 			  struct mpath_info *pinfo)
1896 {
1897 	memset(pinfo, 0, sizeof(*pinfo));
1898 	memcpy(mpp, mpath->mpp, ETH_ALEN);
1899 
1900 	pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1901 }
1902 
1903 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1904 			     u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1905 
1906 {
1907 	struct ieee80211_sub_if_data *sdata;
1908 	struct mesh_path *mpath;
1909 
1910 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1911 
1912 	rcu_read_lock();
1913 	mpath = mpp_path_lookup(sdata, dst);
1914 	if (!mpath) {
1915 		rcu_read_unlock();
1916 		return -ENOENT;
1917 	}
1918 	memcpy(dst, mpath->dst, ETH_ALEN);
1919 	mpp_set_pinfo(mpath, mpp, pinfo);
1920 	rcu_read_unlock();
1921 	return 0;
1922 }
1923 
1924 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1925 			      int idx, u8 *dst, u8 *mpp,
1926 			      struct mpath_info *pinfo)
1927 {
1928 	struct ieee80211_sub_if_data *sdata;
1929 	struct mesh_path *mpath;
1930 
1931 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1932 
1933 	rcu_read_lock();
1934 	mpath = mpp_path_lookup_by_idx(sdata, idx);
1935 	if (!mpath) {
1936 		rcu_read_unlock();
1937 		return -ENOENT;
1938 	}
1939 	memcpy(dst, mpath->dst, ETH_ALEN);
1940 	mpp_set_pinfo(mpath, mpp, pinfo);
1941 	rcu_read_unlock();
1942 	return 0;
1943 }
1944 
1945 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1946 				struct net_device *dev,
1947 				struct mesh_config *conf)
1948 {
1949 	struct ieee80211_sub_if_data *sdata;
1950 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1951 
1952 	memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1953 	return 0;
1954 }
1955 
1956 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1957 {
1958 	return (mask >> (parm-1)) & 0x1;
1959 }
1960 
1961 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1962 		const struct mesh_setup *setup)
1963 {
1964 	u8 *new_ie;
1965 	const u8 *old_ie;
1966 	struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1967 					struct ieee80211_sub_if_data, u.mesh);
1968 	int i;
1969 
1970 	/* allocate information elements */
1971 	new_ie = NULL;
1972 	old_ie = ifmsh->ie;
1973 
1974 	if (setup->ie_len) {
1975 		new_ie = kmemdup(setup->ie, setup->ie_len,
1976 				GFP_KERNEL);
1977 		if (!new_ie)
1978 			return -ENOMEM;
1979 	}
1980 	ifmsh->ie_len = setup->ie_len;
1981 	ifmsh->ie = new_ie;
1982 	kfree(old_ie);
1983 
1984 	/* now copy the rest of the setup parameters */
1985 	ifmsh->mesh_id_len = setup->mesh_id_len;
1986 	memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1987 	ifmsh->mesh_sp_id = setup->sync_method;
1988 	ifmsh->mesh_pp_id = setup->path_sel_proto;
1989 	ifmsh->mesh_pm_id = setup->path_metric;
1990 	ifmsh->user_mpm = setup->user_mpm;
1991 	ifmsh->mesh_auth_id = setup->auth_id;
1992 	ifmsh->security = IEEE80211_MESH_SEC_NONE;
1993 	ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1994 	if (setup->is_authenticated)
1995 		ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1996 	if (setup->is_secure)
1997 		ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1998 
1999 	/* mcast rate setting in Mesh Node */
2000 	memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2001 						sizeof(setup->mcast_rate));
2002 	sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2003 
2004 	sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2005 	sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2006 
2007 	sdata->beacon_rate_set = false;
2008 	if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2009 				    NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2010 		for (i = 0; i < NUM_NL80211_BANDS; i++) {
2011 			sdata->beacon_rateidx_mask[i] =
2012 				setup->beacon_rate.control[i].legacy;
2013 			if (sdata->beacon_rateidx_mask[i])
2014 				sdata->beacon_rate_set = true;
2015 		}
2016 	}
2017 
2018 	return 0;
2019 }
2020 
2021 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2022 					struct net_device *dev, u32 mask,
2023 					const struct mesh_config *nconf)
2024 {
2025 	struct mesh_config *conf;
2026 	struct ieee80211_sub_if_data *sdata;
2027 	struct ieee80211_if_mesh *ifmsh;
2028 
2029 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2030 	ifmsh = &sdata->u.mesh;
2031 
2032 	/* Set the config options which we are interested in setting */
2033 	conf = &(sdata->u.mesh.mshcfg);
2034 	if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2035 		conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2036 	if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2037 		conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2038 	if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2039 		conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2040 	if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2041 		conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2042 	if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2043 		conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2044 	if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2045 		conf->dot11MeshTTL = nconf->dot11MeshTTL;
2046 	if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2047 		conf->element_ttl = nconf->element_ttl;
2048 	if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2049 		if (ifmsh->user_mpm)
2050 			return -EBUSY;
2051 		conf->auto_open_plinks = nconf->auto_open_plinks;
2052 	}
2053 	if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2054 		conf->dot11MeshNbrOffsetMaxNeighbor =
2055 			nconf->dot11MeshNbrOffsetMaxNeighbor;
2056 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2057 		conf->dot11MeshHWMPmaxPREQretries =
2058 			nconf->dot11MeshHWMPmaxPREQretries;
2059 	if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2060 		conf->path_refresh_time = nconf->path_refresh_time;
2061 	if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2062 		conf->min_discovery_timeout = nconf->min_discovery_timeout;
2063 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2064 		conf->dot11MeshHWMPactivePathTimeout =
2065 			nconf->dot11MeshHWMPactivePathTimeout;
2066 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2067 		conf->dot11MeshHWMPpreqMinInterval =
2068 			nconf->dot11MeshHWMPpreqMinInterval;
2069 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2070 		conf->dot11MeshHWMPperrMinInterval =
2071 			nconf->dot11MeshHWMPperrMinInterval;
2072 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2073 			   mask))
2074 		conf->dot11MeshHWMPnetDiameterTraversalTime =
2075 			nconf->dot11MeshHWMPnetDiameterTraversalTime;
2076 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2077 		conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2078 		ieee80211_mesh_root_setup(ifmsh);
2079 	}
2080 	if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2081 		/* our current gate announcement implementation rides on root
2082 		 * announcements, so require this ifmsh to also be a root node
2083 		 * */
2084 		if (nconf->dot11MeshGateAnnouncementProtocol &&
2085 		    !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2086 			conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2087 			ieee80211_mesh_root_setup(ifmsh);
2088 		}
2089 		conf->dot11MeshGateAnnouncementProtocol =
2090 			nconf->dot11MeshGateAnnouncementProtocol;
2091 	}
2092 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2093 		conf->dot11MeshHWMPRannInterval =
2094 			nconf->dot11MeshHWMPRannInterval;
2095 	if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2096 		conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2097 	if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2098 		/* our RSSI threshold implementation is supported only for
2099 		 * devices that report signal in dBm.
2100 		 */
2101 		if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2102 			return -ENOTSUPP;
2103 		conf->rssi_threshold = nconf->rssi_threshold;
2104 	}
2105 	if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2106 		conf->ht_opmode = nconf->ht_opmode;
2107 		sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2108 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2109 	}
2110 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2111 		conf->dot11MeshHWMPactivePathToRootTimeout =
2112 			nconf->dot11MeshHWMPactivePathToRootTimeout;
2113 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2114 		conf->dot11MeshHWMProotInterval =
2115 			nconf->dot11MeshHWMProotInterval;
2116 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2117 		conf->dot11MeshHWMPconfirmationInterval =
2118 			nconf->dot11MeshHWMPconfirmationInterval;
2119 	if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2120 		conf->power_mode = nconf->power_mode;
2121 		ieee80211_mps_local_status_update(sdata);
2122 	}
2123 	if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2124 		conf->dot11MeshAwakeWindowDuration =
2125 			nconf->dot11MeshAwakeWindowDuration;
2126 	if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2127 		conf->plink_timeout = nconf->plink_timeout;
2128 	if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2129 		conf->dot11MeshConnectedToMeshGate =
2130 			nconf->dot11MeshConnectedToMeshGate;
2131 	if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2132 		conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2133 	if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2134 		conf->dot11MeshConnectedToAuthServer =
2135 			nconf->dot11MeshConnectedToAuthServer;
2136 	ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2137 	return 0;
2138 }
2139 
2140 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2141 			       const struct mesh_config *conf,
2142 			       const struct mesh_setup *setup)
2143 {
2144 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2145 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2146 	int err;
2147 
2148 	memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2149 	err = copy_mesh_setup(ifmsh, setup);
2150 	if (err)
2151 		return err;
2152 
2153 	sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2154 
2155 	/* can mesh use other SMPS modes? */
2156 	sdata->smps_mode = IEEE80211_SMPS_OFF;
2157 	sdata->needed_rx_chains = sdata->local->rx_chains;
2158 
2159 	mutex_lock(&sdata->local->mtx);
2160 	err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2161 					IEEE80211_CHANCTX_SHARED);
2162 	mutex_unlock(&sdata->local->mtx);
2163 	if (err)
2164 		return err;
2165 
2166 	return ieee80211_start_mesh(sdata);
2167 }
2168 
2169 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2170 {
2171 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2172 
2173 	ieee80211_stop_mesh(sdata);
2174 	mutex_lock(&sdata->local->mtx);
2175 	ieee80211_vif_release_channel(sdata);
2176 	kfree(sdata->u.mesh.ie);
2177 	mutex_unlock(&sdata->local->mtx);
2178 
2179 	return 0;
2180 }
2181 #endif
2182 
2183 static int ieee80211_change_bss(struct wiphy *wiphy,
2184 				struct net_device *dev,
2185 				struct bss_parameters *params)
2186 {
2187 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2188 	struct ieee80211_supported_band *sband;
2189 	u32 changed = 0;
2190 
2191 	if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2192 		return -ENOENT;
2193 
2194 	sband = ieee80211_get_sband(sdata);
2195 	if (!sband)
2196 		return -EINVAL;
2197 
2198 	if (params->use_cts_prot >= 0) {
2199 		sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2200 		changed |= BSS_CHANGED_ERP_CTS_PROT;
2201 	}
2202 	if (params->use_short_preamble >= 0) {
2203 		sdata->vif.bss_conf.use_short_preamble =
2204 			params->use_short_preamble;
2205 		changed |= BSS_CHANGED_ERP_PREAMBLE;
2206 	}
2207 
2208 	if (!sdata->vif.bss_conf.use_short_slot &&
2209 	    (sband->band == NL80211_BAND_5GHZ ||
2210 	     sband->band == NL80211_BAND_6GHZ)) {
2211 		sdata->vif.bss_conf.use_short_slot = true;
2212 		changed |= BSS_CHANGED_ERP_SLOT;
2213 	}
2214 
2215 	if (params->use_short_slot_time >= 0) {
2216 		sdata->vif.bss_conf.use_short_slot =
2217 			params->use_short_slot_time;
2218 		changed |= BSS_CHANGED_ERP_SLOT;
2219 	}
2220 
2221 	if (params->basic_rates) {
2222 		ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2223 					 wiphy->bands[sband->band],
2224 					 params->basic_rates,
2225 					 params->basic_rates_len,
2226 					 &sdata->vif.bss_conf.basic_rates);
2227 		changed |= BSS_CHANGED_BASIC_RATES;
2228 		ieee80211_check_rate_mask(sdata);
2229 	}
2230 
2231 	if (params->ap_isolate >= 0) {
2232 		if (params->ap_isolate)
2233 			sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2234 		else
2235 			sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2236 		ieee80211_check_fast_rx_iface(sdata);
2237 	}
2238 
2239 	if (params->ht_opmode >= 0) {
2240 		sdata->vif.bss_conf.ht_operation_mode =
2241 			(u16) params->ht_opmode;
2242 		changed |= BSS_CHANGED_HT;
2243 	}
2244 
2245 	if (params->p2p_ctwindow >= 0) {
2246 		sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2247 					~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2248 		sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2249 			params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2250 		changed |= BSS_CHANGED_P2P_PS;
2251 	}
2252 
2253 	if (params->p2p_opp_ps > 0) {
2254 		sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2255 					IEEE80211_P2P_OPPPS_ENABLE_BIT;
2256 		changed |= BSS_CHANGED_P2P_PS;
2257 	} else if (params->p2p_opp_ps == 0) {
2258 		sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2259 					~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2260 		changed |= BSS_CHANGED_P2P_PS;
2261 	}
2262 
2263 	ieee80211_bss_info_change_notify(sdata, changed);
2264 
2265 	return 0;
2266 }
2267 
2268 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2269 				    struct net_device *dev,
2270 				    struct ieee80211_txq_params *params)
2271 {
2272 	struct ieee80211_local *local = wiphy_priv(wiphy);
2273 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2274 	struct ieee80211_tx_queue_params p;
2275 
2276 	if (!local->ops->conf_tx)
2277 		return -EOPNOTSUPP;
2278 
2279 	if (local->hw.queues < IEEE80211_NUM_ACS)
2280 		return -EOPNOTSUPP;
2281 
2282 	memset(&p, 0, sizeof(p));
2283 	p.aifs = params->aifs;
2284 	p.cw_max = params->cwmax;
2285 	p.cw_min = params->cwmin;
2286 	p.txop = params->txop;
2287 
2288 	/*
2289 	 * Setting tx queue params disables u-apsd because it's only
2290 	 * called in master mode.
2291 	 */
2292 	p.uapsd = false;
2293 
2294 	ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2295 
2296 	sdata->tx_conf[params->ac] = p;
2297 	if (drv_conf_tx(local, sdata, params->ac, &p)) {
2298 		wiphy_debug(local->hw.wiphy,
2299 			    "failed to set TX queue parameters for AC %d\n",
2300 			    params->ac);
2301 		return -EINVAL;
2302 	}
2303 
2304 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2305 
2306 	return 0;
2307 }
2308 
2309 #ifdef CONFIG_PM
2310 static int ieee80211_suspend(struct wiphy *wiphy,
2311 			     struct cfg80211_wowlan *wowlan)
2312 {
2313 	return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2314 }
2315 
2316 static int ieee80211_resume(struct wiphy *wiphy)
2317 {
2318 	return __ieee80211_resume(wiphy_priv(wiphy));
2319 }
2320 #else
2321 #define ieee80211_suspend NULL
2322 #define ieee80211_resume NULL
2323 #endif
2324 
2325 static int ieee80211_scan(struct wiphy *wiphy,
2326 			  struct cfg80211_scan_request *req)
2327 {
2328 	struct ieee80211_sub_if_data *sdata;
2329 
2330 	sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2331 
2332 	switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2333 	case NL80211_IFTYPE_STATION:
2334 	case NL80211_IFTYPE_ADHOC:
2335 	case NL80211_IFTYPE_MESH_POINT:
2336 	case NL80211_IFTYPE_P2P_CLIENT:
2337 	case NL80211_IFTYPE_P2P_DEVICE:
2338 		break;
2339 	case NL80211_IFTYPE_P2P_GO:
2340 		if (sdata->local->ops->hw_scan)
2341 			break;
2342 		/*
2343 		 * FIXME: implement NoA while scanning in software,
2344 		 * for now fall through to allow scanning only when
2345 		 * beaconing hasn't been configured yet
2346 		 */
2347 		fallthrough;
2348 	case NL80211_IFTYPE_AP:
2349 		/*
2350 		 * If the scan has been forced (and the driver supports
2351 		 * forcing), don't care about being beaconing already.
2352 		 * This will create problems to the attached stations (e.g. all
2353 		 * the  frames sent while scanning on other channel will be
2354 		 * lost)
2355 		 */
2356 		if (sdata->u.ap.beacon &&
2357 		    (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2358 		     !(req->flags & NL80211_SCAN_FLAG_AP)))
2359 			return -EOPNOTSUPP;
2360 		break;
2361 	case NL80211_IFTYPE_NAN:
2362 	default:
2363 		return -EOPNOTSUPP;
2364 	}
2365 
2366 	return ieee80211_request_scan(sdata, req);
2367 }
2368 
2369 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2370 {
2371 	ieee80211_scan_cancel(wiphy_priv(wiphy));
2372 }
2373 
2374 static int
2375 ieee80211_sched_scan_start(struct wiphy *wiphy,
2376 			   struct net_device *dev,
2377 			   struct cfg80211_sched_scan_request *req)
2378 {
2379 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2380 
2381 	if (!sdata->local->ops->sched_scan_start)
2382 		return -EOPNOTSUPP;
2383 
2384 	return ieee80211_request_sched_scan_start(sdata, req);
2385 }
2386 
2387 static int
2388 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2389 			  u64 reqid)
2390 {
2391 	struct ieee80211_local *local = wiphy_priv(wiphy);
2392 
2393 	if (!local->ops->sched_scan_stop)
2394 		return -EOPNOTSUPP;
2395 
2396 	return ieee80211_request_sched_scan_stop(local);
2397 }
2398 
2399 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2400 			  struct cfg80211_auth_request *req)
2401 {
2402 	return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2403 }
2404 
2405 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2406 			   struct cfg80211_assoc_request *req)
2407 {
2408 	return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2409 }
2410 
2411 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2412 			    struct cfg80211_deauth_request *req)
2413 {
2414 	return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2415 }
2416 
2417 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2418 			      struct cfg80211_disassoc_request *req)
2419 {
2420 	return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2421 }
2422 
2423 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2424 			       struct cfg80211_ibss_params *params)
2425 {
2426 	return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2427 }
2428 
2429 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2430 {
2431 	return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2432 }
2433 
2434 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2435 			      struct ocb_setup *setup)
2436 {
2437 	return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2438 }
2439 
2440 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2441 {
2442 	return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2443 }
2444 
2445 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2446 				    int rate[NUM_NL80211_BANDS])
2447 {
2448 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2449 
2450 	memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2451 	       sizeof(int) * NUM_NL80211_BANDS);
2452 
2453 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2454 
2455 	return 0;
2456 }
2457 
2458 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2459 {
2460 	struct ieee80211_local *local = wiphy_priv(wiphy);
2461 	int err;
2462 
2463 	if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2464 		ieee80211_check_fast_xmit_all(local);
2465 
2466 		err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2467 
2468 		if (err) {
2469 			ieee80211_check_fast_xmit_all(local);
2470 			return err;
2471 		}
2472 	}
2473 
2474 	if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2475 	    (changed & WIPHY_PARAM_DYN_ACK)) {
2476 		s16 coverage_class;
2477 
2478 		coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2479 					wiphy->coverage_class : -1;
2480 		err = drv_set_coverage_class(local, coverage_class);
2481 
2482 		if (err)
2483 			return err;
2484 	}
2485 
2486 	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2487 		err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2488 
2489 		if (err)
2490 			return err;
2491 	}
2492 
2493 	if (changed & WIPHY_PARAM_RETRY_SHORT) {
2494 		if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2495 			return -EINVAL;
2496 		local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2497 	}
2498 	if (changed & WIPHY_PARAM_RETRY_LONG) {
2499 		if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2500 			return -EINVAL;
2501 		local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2502 	}
2503 	if (changed &
2504 	    (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2505 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2506 
2507 	if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2508 		       WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2509 		       WIPHY_PARAM_TXQ_QUANTUM))
2510 		ieee80211_txq_set_params(local);
2511 
2512 	return 0;
2513 }
2514 
2515 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2516 				  struct wireless_dev *wdev,
2517 				  enum nl80211_tx_power_setting type, int mbm)
2518 {
2519 	struct ieee80211_local *local = wiphy_priv(wiphy);
2520 	struct ieee80211_sub_if_data *sdata;
2521 	enum nl80211_tx_power_setting txp_type = type;
2522 	bool update_txp_type = false;
2523 	bool has_monitor = false;
2524 
2525 	if (wdev) {
2526 		sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2527 
2528 		if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2529 			sdata = rtnl_dereference(local->monitor_sdata);
2530 			if (!sdata)
2531 				return -EOPNOTSUPP;
2532 		}
2533 
2534 		switch (type) {
2535 		case NL80211_TX_POWER_AUTOMATIC:
2536 			sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2537 			txp_type = NL80211_TX_POWER_LIMITED;
2538 			break;
2539 		case NL80211_TX_POWER_LIMITED:
2540 		case NL80211_TX_POWER_FIXED:
2541 			if (mbm < 0 || (mbm % 100))
2542 				return -EOPNOTSUPP;
2543 			sdata->user_power_level = MBM_TO_DBM(mbm);
2544 			break;
2545 		}
2546 
2547 		if (txp_type != sdata->vif.bss_conf.txpower_type) {
2548 			update_txp_type = true;
2549 			sdata->vif.bss_conf.txpower_type = txp_type;
2550 		}
2551 
2552 		ieee80211_recalc_txpower(sdata, update_txp_type);
2553 
2554 		return 0;
2555 	}
2556 
2557 	switch (type) {
2558 	case NL80211_TX_POWER_AUTOMATIC:
2559 		local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2560 		txp_type = NL80211_TX_POWER_LIMITED;
2561 		break;
2562 	case NL80211_TX_POWER_LIMITED:
2563 	case NL80211_TX_POWER_FIXED:
2564 		if (mbm < 0 || (mbm % 100))
2565 			return -EOPNOTSUPP;
2566 		local->user_power_level = MBM_TO_DBM(mbm);
2567 		break;
2568 	}
2569 
2570 	mutex_lock(&local->iflist_mtx);
2571 	list_for_each_entry(sdata, &local->interfaces, list) {
2572 		if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2573 			has_monitor = true;
2574 			continue;
2575 		}
2576 		sdata->user_power_level = local->user_power_level;
2577 		if (txp_type != sdata->vif.bss_conf.txpower_type)
2578 			update_txp_type = true;
2579 		sdata->vif.bss_conf.txpower_type = txp_type;
2580 	}
2581 	list_for_each_entry(sdata, &local->interfaces, list) {
2582 		if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2583 			continue;
2584 		ieee80211_recalc_txpower(sdata, update_txp_type);
2585 	}
2586 	mutex_unlock(&local->iflist_mtx);
2587 
2588 	if (has_monitor) {
2589 		sdata = rtnl_dereference(local->monitor_sdata);
2590 		if (sdata) {
2591 			sdata->user_power_level = local->user_power_level;
2592 			if (txp_type != sdata->vif.bss_conf.txpower_type)
2593 				update_txp_type = true;
2594 			sdata->vif.bss_conf.txpower_type = txp_type;
2595 
2596 			ieee80211_recalc_txpower(sdata, update_txp_type);
2597 		}
2598 	}
2599 
2600 	return 0;
2601 }
2602 
2603 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2604 				  struct wireless_dev *wdev,
2605 				  int *dbm)
2606 {
2607 	struct ieee80211_local *local = wiphy_priv(wiphy);
2608 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2609 
2610 	if (local->ops->get_txpower)
2611 		return drv_get_txpower(local, sdata, dbm);
2612 
2613 	if (!local->use_chanctx)
2614 		*dbm = local->hw.conf.power_level;
2615 	else
2616 		*dbm = sdata->vif.bss_conf.txpower;
2617 
2618 	return 0;
2619 }
2620 
2621 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2622 				  const u8 *addr)
2623 {
2624 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2625 
2626 	memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2627 
2628 	return 0;
2629 }
2630 
2631 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2632 {
2633 	struct ieee80211_local *local = wiphy_priv(wiphy);
2634 
2635 	drv_rfkill_poll(local);
2636 }
2637 
2638 #ifdef CONFIG_NL80211_TESTMODE
2639 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2640 				  struct wireless_dev *wdev,
2641 				  void *data, int len)
2642 {
2643 	struct ieee80211_local *local = wiphy_priv(wiphy);
2644 	struct ieee80211_vif *vif = NULL;
2645 
2646 	if (!local->ops->testmode_cmd)
2647 		return -EOPNOTSUPP;
2648 
2649 	if (wdev) {
2650 		struct ieee80211_sub_if_data *sdata;
2651 
2652 		sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2653 		if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2654 			vif = &sdata->vif;
2655 	}
2656 
2657 	return local->ops->testmode_cmd(&local->hw, vif, data, len);
2658 }
2659 
2660 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2661 				   struct sk_buff *skb,
2662 				   struct netlink_callback *cb,
2663 				   void *data, int len)
2664 {
2665 	struct ieee80211_local *local = wiphy_priv(wiphy);
2666 
2667 	if (!local->ops->testmode_dump)
2668 		return -EOPNOTSUPP;
2669 
2670 	return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2671 }
2672 #endif
2673 
2674 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2675 				 enum ieee80211_smps_mode smps_mode)
2676 {
2677 	const u8 *ap;
2678 	enum ieee80211_smps_mode old_req;
2679 	int err;
2680 	struct sta_info *sta;
2681 	bool tdls_peer_found = false;
2682 
2683 	lockdep_assert_held(&sdata->wdev.mtx);
2684 
2685 	if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2686 		return -EINVAL;
2687 
2688 	old_req = sdata->u.mgd.req_smps;
2689 	sdata->u.mgd.req_smps = smps_mode;
2690 
2691 	if (old_req == smps_mode &&
2692 	    smps_mode != IEEE80211_SMPS_AUTOMATIC)
2693 		return 0;
2694 
2695 	/*
2696 	 * If not associated, or current association is not an HT
2697 	 * association, there's no need to do anything, just store
2698 	 * the new value until we associate.
2699 	 */
2700 	if (!sdata->u.mgd.associated ||
2701 	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2702 		return 0;
2703 
2704 	ap = sdata->u.mgd.associated->bssid;
2705 
2706 	rcu_read_lock();
2707 	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2708 		if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2709 		    !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2710 			continue;
2711 
2712 		tdls_peer_found = true;
2713 		break;
2714 	}
2715 	rcu_read_unlock();
2716 
2717 	if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2718 		if (tdls_peer_found || !sdata->u.mgd.powersave)
2719 			smps_mode = IEEE80211_SMPS_OFF;
2720 		else
2721 			smps_mode = IEEE80211_SMPS_DYNAMIC;
2722 	}
2723 
2724 	/* send SM PS frame to AP */
2725 	err = ieee80211_send_smps_action(sdata, smps_mode,
2726 					 ap, ap);
2727 	if (err)
2728 		sdata->u.mgd.req_smps = old_req;
2729 	else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2730 		ieee80211_teardown_tdls_peers(sdata);
2731 
2732 	return err;
2733 }
2734 
2735 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2736 				    bool enabled, int timeout)
2737 {
2738 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2739 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2740 
2741 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
2742 		return -EOPNOTSUPP;
2743 
2744 	if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2745 		return -EOPNOTSUPP;
2746 
2747 	if (enabled == sdata->u.mgd.powersave &&
2748 	    timeout == local->dynamic_ps_forced_timeout)
2749 		return 0;
2750 
2751 	sdata->u.mgd.powersave = enabled;
2752 	local->dynamic_ps_forced_timeout = timeout;
2753 
2754 	/* no change, but if automatic follow powersave */
2755 	sdata_lock(sdata);
2756 	__ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2757 	sdata_unlock(sdata);
2758 
2759 	if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2760 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2761 
2762 	ieee80211_recalc_ps(local);
2763 	ieee80211_recalc_ps_vif(sdata);
2764 	ieee80211_check_fast_rx_iface(sdata);
2765 
2766 	return 0;
2767 }
2768 
2769 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2770 					 struct net_device *dev,
2771 					 s32 rssi_thold, u32 rssi_hyst)
2772 {
2773 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2774 	struct ieee80211_vif *vif = &sdata->vif;
2775 	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2776 
2777 	if (rssi_thold == bss_conf->cqm_rssi_thold &&
2778 	    rssi_hyst == bss_conf->cqm_rssi_hyst)
2779 		return 0;
2780 
2781 	if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2782 	    !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2783 		return -EOPNOTSUPP;
2784 
2785 	bss_conf->cqm_rssi_thold = rssi_thold;
2786 	bss_conf->cqm_rssi_hyst = rssi_hyst;
2787 	bss_conf->cqm_rssi_low = 0;
2788 	bss_conf->cqm_rssi_high = 0;
2789 	sdata->u.mgd.last_cqm_event_signal = 0;
2790 
2791 	/* tell the driver upon association, unless already associated */
2792 	if (sdata->u.mgd.associated &&
2793 	    sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2794 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2795 
2796 	return 0;
2797 }
2798 
2799 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2800 					       struct net_device *dev,
2801 					       s32 rssi_low, s32 rssi_high)
2802 {
2803 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2804 	struct ieee80211_vif *vif = &sdata->vif;
2805 	struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2806 
2807 	if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2808 		return -EOPNOTSUPP;
2809 
2810 	bss_conf->cqm_rssi_low = rssi_low;
2811 	bss_conf->cqm_rssi_high = rssi_high;
2812 	bss_conf->cqm_rssi_thold = 0;
2813 	bss_conf->cqm_rssi_hyst = 0;
2814 	sdata->u.mgd.last_cqm_event_signal = 0;
2815 
2816 	/* tell the driver upon association, unless already associated */
2817 	if (sdata->u.mgd.associated &&
2818 	    sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2819 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2820 
2821 	return 0;
2822 }
2823 
2824 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2825 				      struct net_device *dev,
2826 				      const u8 *addr,
2827 				      const struct cfg80211_bitrate_mask *mask)
2828 {
2829 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2830 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2831 	int i, ret;
2832 
2833 	if (!ieee80211_sdata_running(sdata))
2834 		return -ENETDOWN;
2835 
2836 	/*
2837 	 * If active validate the setting and reject it if it doesn't leave
2838 	 * at least one basic rate usable, since we really have to be able
2839 	 * to send something, and if we're an AP we have to be able to do
2840 	 * so at a basic rate so that all clients can receive it.
2841 	 */
2842 	if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2843 	    sdata->vif.bss_conf.chandef.chan) {
2844 		u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2845 		enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2846 
2847 		if (!(mask->control[band].legacy & basic_rates))
2848 			return -EINVAL;
2849 	}
2850 
2851 	if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2852 		ret = drv_set_bitrate_mask(local, sdata, mask);
2853 		if (ret)
2854 			return ret;
2855 	}
2856 
2857 	for (i = 0; i < NUM_NL80211_BANDS; i++) {
2858 		struct ieee80211_supported_band *sband = wiphy->bands[i];
2859 		int j;
2860 
2861 		sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2862 		memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2863 		       sizeof(mask->control[i].ht_mcs));
2864 		memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2865 		       mask->control[i].vht_mcs,
2866 		       sizeof(mask->control[i].vht_mcs));
2867 
2868 		sdata->rc_has_mcs_mask[i] = false;
2869 		sdata->rc_has_vht_mcs_mask[i] = false;
2870 		if (!sband)
2871 			continue;
2872 
2873 		for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2874 			if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2875 				sdata->rc_has_mcs_mask[i] = true;
2876 				break;
2877 			}
2878 		}
2879 
2880 		for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2881 			if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2882 				sdata->rc_has_vht_mcs_mask[i] = true;
2883 				break;
2884 			}
2885 		}
2886 	}
2887 
2888 	return 0;
2889 }
2890 
2891 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2892 					   struct net_device *dev,
2893 					   struct cfg80211_chan_def *chandef,
2894 					   u32 cac_time_ms)
2895 {
2896 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2897 	struct ieee80211_local *local = sdata->local;
2898 	int err;
2899 
2900 	mutex_lock(&local->mtx);
2901 	if (!list_empty(&local->roc_list) || local->scanning) {
2902 		err = -EBUSY;
2903 		goto out_unlock;
2904 	}
2905 
2906 	/* whatever, but channel contexts should not complain about that one */
2907 	sdata->smps_mode = IEEE80211_SMPS_OFF;
2908 	sdata->needed_rx_chains = local->rx_chains;
2909 
2910 	err = ieee80211_vif_use_channel(sdata, chandef,
2911 					IEEE80211_CHANCTX_SHARED);
2912 	if (err)
2913 		goto out_unlock;
2914 
2915 	ieee80211_queue_delayed_work(&sdata->local->hw,
2916 				     &sdata->dfs_cac_timer_work,
2917 				     msecs_to_jiffies(cac_time_ms));
2918 
2919  out_unlock:
2920 	mutex_unlock(&local->mtx);
2921 	return err;
2922 }
2923 
2924 static void ieee80211_end_cac(struct wiphy *wiphy,
2925 			      struct net_device *dev)
2926 {
2927 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2928 	struct ieee80211_local *local = sdata->local;
2929 
2930 	mutex_lock(&local->mtx);
2931 	list_for_each_entry(sdata, &local->interfaces, list) {
2932 		/* it might be waiting for the local->mtx, but then
2933 		 * by the time it gets it, sdata->wdev.cac_started
2934 		 * will no longer be true
2935 		 */
2936 		cancel_delayed_work(&sdata->dfs_cac_timer_work);
2937 
2938 		if (sdata->wdev.cac_started) {
2939 			ieee80211_vif_release_channel(sdata);
2940 			sdata->wdev.cac_started = false;
2941 		}
2942 	}
2943 	mutex_unlock(&local->mtx);
2944 }
2945 
2946 static struct cfg80211_beacon_data *
2947 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2948 {
2949 	struct cfg80211_beacon_data *new_beacon;
2950 	u8 *pos;
2951 	int len;
2952 
2953 	len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2954 	      beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2955 	      beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
2956 
2957 	new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2958 	if (!new_beacon)
2959 		return NULL;
2960 
2961 	pos = (u8 *)(new_beacon + 1);
2962 	if (beacon->head_len) {
2963 		new_beacon->head_len = beacon->head_len;
2964 		new_beacon->head = pos;
2965 		memcpy(pos, beacon->head, beacon->head_len);
2966 		pos += beacon->head_len;
2967 	}
2968 	if (beacon->tail_len) {
2969 		new_beacon->tail_len = beacon->tail_len;
2970 		new_beacon->tail = pos;
2971 		memcpy(pos, beacon->tail, beacon->tail_len);
2972 		pos += beacon->tail_len;
2973 	}
2974 	if (beacon->beacon_ies_len) {
2975 		new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2976 		new_beacon->beacon_ies = pos;
2977 		memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2978 		pos += beacon->beacon_ies_len;
2979 	}
2980 	if (beacon->proberesp_ies_len) {
2981 		new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2982 		new_beacon->proberesp_ies = pos;
2983 		memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2984 		pos += beacon->proberesp_ies_len;
2985 	}
2986 	if (beacon->assocresp_ies_len) {
2987 		new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2988 		new_beacon->assocresp_ies = pos;
2989 		memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2990 		pos += beacon->assocresp_ies_len;
2991 	}
2992 	if (beacon->probe_resp_len) {
2993 		new_beacon->probe_resp_len = beacon->probe_resp_len;
2994 		new_beacon->probe_resp = pos;
2995 		memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2996 		pos += beacon->probe_resp_len;
2997 	}
2998 
2999 	/* might copy -1, meaning no changes requested */
3000 	new_beacon->ftm_responder = beacon->ftm_responder;
3001 	if (beacon->lci) {
3002 		new_beacon->lci_len = beacon->lci_len;
3003 		new_beacon->lci = pos;
3004 		memcpy(pos, beacon->lci, beacon->lci_len);
3005 		pos += beacon->lci_len;
3006 	}
3007 	if (beacon->civicloc) {
3008 		new_beacon->civicloc_len = beacon->civicloc_len;
3009 		new_beacon->civicloc = pos;
3010 		memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3011 		pos += beacon->civicloc_len;
3012 	}
3013 
3014 	return new_beacon;
3015 }
3016 
3017 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3018 {
3019 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3020 
3021 	ieee80211_queue_work(&sdata->local->hw,
3022 			     &sdata->csa_finalize_work);
3023 }
3024 EXPORT_SYMBOL(ieee80211_csa_finish);
3025 
3026 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3027 					  u32 *changed)
3028 {
3029 	int err;
3030 
3031 	switch (sdata->vif.type) {
3032 	case NL80211_IFTYPE_AP:
3033 		err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3034 					      NULL);
3035 		kfree(sdata->u.ap.next_beacon);
3036 		sdata->u.ap.next_beacon = NULL;
3037 
3038 		if (err < 0)
3039 			return err;
3040 		*changed |= err;
3041 		break;
3042 	case NL80211_IFTYPE_ADHOC:
3043 		err = ieee80211_ibss_finish_csa(sdata);
3044 		if (err < 0)
3045 			return err;
3046 		*changed |= err;
3047 		break;
3048 #ifdef CONFIG_MAC80211_MESH
3049 	case NL80211_IFTYPE_MESH_POINT:
3050 		err = ieee80211_mesh_finish_csa(sdata);
3051 		if (err < 0)
3052 			return err;
3053 		*changed |= err;
3054 		break;
3055 #endif
3056 	default:
3057 		WARN_ON(1);
3058 		return -EINVAL;
3059 	}
3060 
3061 	return 0;
3062 }
3063 
3064 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3065 {
3066 	struct ieee80211_local *local = sdata->local;
3067 	u32 changed = 0;
3068 	int err;
3069 
3070 	sdata_assert_lock(sdata);
3071 	lockdep_assert_held(&local->mtx);
3072 	lockdep_assert_held(&local->chanctx_mtx);
3073 
3074 	/*
3075 	 * using reservation isn't immediate as it may be deferred until later
3076 	 * with multi-vif. once reservation is complete it will re-schedule the
3077 	 * work with no reserved_chanctx so verify chandef to check if it
3078 	 * completed successfully
3079 	 */
3080 
3081 	if (sdata->reserved_chanctx) {
3082 		/*
3083 		 * with multi-vif csa driver may call ieee80211_csa_finish()
3084 		 * many times while waiting for other interfaces to use their
3085 		 * reservations
3086 		 */
3087 		if (sdata->reserved_ready)
3088 			return 0;
3089 
3090 		return ieee80211_vif_use_reserved_context(sdata);
3091 	}
3092 
3093 	if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3094 					&sdata->csa_chandef))
3095 		return -EINVAL;
3096 
3097 	sdata->vif.csa_active = false;
3098 
3099 	err = ieee80211_set_after_csa_beacon(sdata, &changed);
3100 	if (err)
3101 		return err;
3102 
3103 	ieee80211_bss_info_change_notify(sdata, changed);
3104 
3105 	if (sdata->csa_block_tx) {
3106 		ieee80211_wake_vif_queues(local, sdata,
3107 					  IEEE80211_QUEUE_STOP_REASON_CSA);
3108 		sdata->csa_block_tx = false;
3109 	}
3110 
3111 	err = drv_post_channel_switch(sdata);
3112 	if (err)
3113 		return err;
3114 
3115 	cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3116 
3117 	return 0;
3118 }
3119 
3120 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3121 {
3122 	if (__ieee80211_csa_finalize(sdata)) {
3123 		sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3124 		cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3125 				    GFP_KERNEL);
3126 	}
3127 }
3128 
3129 void ieee80211_csa_finalize_work(struct work_struct *work)
3130 {
3131 	struct ieee80211_sub_if_data *sdata =
3132 		container_of(work, struct ieee80211_sub_if_data,
3133 			     csa_finalize_work);
3134 	struct ieee80211_local *local = sdata->local;
3135 
3136 	sdata_lock(sdata);
3137 	mutex_lock(&local->mtx);
3138 	mutex_lock(&local->chanctx_mtx);
3139 
3140 	/* AP might have been stopped while waiting for the lock. */
3141 	if (!sdata->vif.csa_active)
3142 		goto unlock;
3143 
3144 	if (!ieee80211_sdata_running(sdata))
3145 		goto unlock;
3146 
3147 	ieee80211_csa_finalize(sdata);
3148 
3149 unlock:
3150 	mutex_unlock(&local->chanctx_mtx);
3151 	mutex_unlock(&local->mtx);
3152 	sdata_unlock(sdata);
3153 }
3154 
3155 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3156 				    struct cfg80211_csa_settings *params,
3157 				    u32 *changed)
3158 {
3159 	struct ieee80211_csa_settings csa = {};
3160 	int err;
3161 
3162 	switch (sdata->vif.type) {
3163 	case NL80211_IFTYPE_AP:
3164 		sdata->u.ap.next_beacon =
3165 			cfg80211_beacon_dup(&params->beacon_after);
3166 		if (!sdata->u.ap.next_beacon)
3167 			return -ENOMEM;
3168 
3169 		/*
3170 		 * With a count of 0, we don't have to wait for any
3171 		 * TBTT before switching, so complete the CSA
3172 		 * immediately.  In theory, with a count == 1 we
3173 		 * should delay the switch until just before the next
3174 		 * TBTT, but that would complicate things so we switch
3175 		 * immediately too.  If we would delay the switch
3176 		 * until the next TBTT, we would have to set the probe
3177 		 * response here.
3178 		 *
3179 		 * TODO: A channel switch with count <= 1 without
3180 		 * sending a CSA action frame is kind of useless,
3181 		 * because the clients won't know we're changing
3182 		 * channels.  The action frame must be implemented
3183 		 * either here or in the userspace.
3184 		 */
3185 		if (params->count <= 1)
3186 			break;
3187 
3188 		if ((params->n_counter_offsets_beacon >
3189 		     IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3190 		    (params->n_counter_offsets_presp >
3191 		     IEEE80211_MAX_CSA_COUNTERS_NUM))
3192 			return -EINVAL;
3193 
3194 		csa.counter_offsets_beacon = params->counter_offsets_beacon;
3195 		csa.counter_offsets_presp = params->counter_offsets_presp;
3196 		csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3197 		csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3198 		csa.count = params->count;
3199 
3200 		err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3201 		if (err < 0) {
3202 			kfree(sdata->u.ap.next_beacon);
3203 			return err;
3204 		}
3205 		*changed |= err;
3206 
3207 		break;
3208 	case NL80211_IFTYPE_ADHOC:
3209 		if (!sdata->vif.bss_conf.ibss_joined)
3210 			return -EINVAL;
3211 
3212 		if (params->chandef.width != sdata->u.ibss.chandef.width)
3213 			return -EINVAL;
3214 
3215 		switch (params->chandef.width) {
3216 		case NL80211_CHAN_WIDTH_40:
3217 			if (cfg80211_get_chandef_type(&params->chandef) !=
3218 			    cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3219 				return -EINVAL;
3220 		case NL80211_CHAN_WIDTH_5:
3221 		case NL80211_CHAN_WIDTH_10:
3222 		case NL80211_CHAN_WIDTH_20_NOHT:
3223 		case NL80211_CHAN_WIDTH_20:
3224 			break;
3225 		default:
3226 			return -EINVAL;
3227 		}
3228 
3229 		/* changes into another band are not supported */
3230 		if (sdata->u.ibss.chandef.chan->band !=
3231 		    params->chandef.chan->band)
3232 			return -EINVAL;
3233 
3234 		/* see comments in the NL80211_IFTYPE_AP block */
3235 		if (params->count > 1) {
3236 			err = ieee80211_ibss_csa_beacon(sdata, params);
3237 			if (err < 0)
3238 				return err;
3239 			*changed |= err;
3240 		}
3241 
3242 		ieee80211_send_action_csa(sdata, params);
3243 
3244 		break;
3245 #ifdef CONFIG_MAC80211_MESH
3246 	case NL80211_IFTYPE_MESH_POINT: {
3247 		struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3248 
3249 		if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3250 			return -EINVAL;
3251 
3252 		/* changes into another band are not supported */
3253 		if (sdata->vif.bss_conf.chandef.chan->band !=
3254 		    params->chandef.chan->band)
3255 			return -EINVAL;
3256 
3257 		if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3258 			ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3259 			if (!ifmsh->pre_value)
3260 				ifmsh->pre_value = 1;
3261 			else
3262 				ifmsh->pre_value++;
3263 		}
3264 
3265 		/* see comments in the NL80211_IFTYPE_AP block */
3266 		if (params->count > 1) {
3267 			err = ieee80211_mesh_csa_beacon(sdata, params);
3268 			if (err < 0) {
3269 				ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3270 				return err;
3271 			}
3272 			*changed |= err;
3273 		}
3274 
3275 		if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3276 			ieee80211_send_action_csa(sdata, params);
3277 
3278 		break;
3279 		}
3280 #endif
3281 	default:
3282 		return -EOPNOTSUPP;
3283 	}
3284 
3285 	return 0;
3286 }
3287 
3288 static int
3289 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3290 			   struct cfg80211_csa_settings *params)
3291 {
3292 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3293 	struct ieee80211_local *local = sdata->local;
3294 	struct ieee80211_channel_switch ch_switch;
3295 	struct ieee80211_chanctx_conf *conf;
3296 	struct ieee80211_chanctx *chanctx;
3297 	u32 changed = 0;
3298 	int err;
3299 
3300 	sdata_assert_lock(sdata);
3301 	lockdep_assert_held(&local->mtx);
3302 
3303 	if (!list_empty(&local->roc_list) || local->scanning)
3304 		return -EBUSY;
3305 
3306 	if (sdata->wdev.cac_started)
3307 		return -EBUSY;
3308 
3309 	if (cfg80211_chandef_identical(&params->chandef,
3310 				       &sdata->vif.bss_conf.chandef))
3311 		return -EINVAL;
3312 
3313 	/* don't allow another channel switch if one is already active. */
3314 	if (sdata->vif.csa_active)
3315 		return -EBUSY;
3316 
3317 	mutex_lock(&local->chanctx_mtx);
3318 	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3319 					 lockdep_is_held(&local->chanctx_mtx));
3320 	if (!conf) {
3321 		err = -EBUSY;
3322 		goto out;
3323 	}
3324 
3325 	if (params->chandef.chan->freq_offset) {
3326 		/* this may work, but is untested */
3327 		err = -EOPNOTSUPP;
3328 		goto out;
3329 	}
3330 
3331 	chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3332 
3333 	ch_switch.timestamp = 0;
3334 	ch_switch.device_timestamp = 0;
3335 	ch_switch.block_tx = params->block_tx;
3336 	ch_switch.chandef = params->chandef;
3337 	ch_switch.count = params->count;
3338 
3339 	err = drv_pre_channel_switch(sdata, &ch_switch);
3340 	if (err)
3341 		goto out;
3342 
3343 	err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3344 					    chanctx->mode,
3345 					    params->radar_required);
3346 	if (err)
3347 		goto out;
3348 
3349 	/* if reservation is invalid then this will fail */
3350 	err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3351 	if (err) {
3352 		ieee80211_vif_unreserve_chanctx(sdata);
3353 		goto out;
3354 	}
3355 
3356 	err = ieee80211_set_csa_beacon(sdata, params, &changed);
3357 	if (err) {
3358 		ieee80211_vif_unreserve_chanctx(sdata);
3359 		goto out;
3360 	}
3361 
3362 	sdata->csa_chandef = params->chandef;
3363 	sdata->csa_block_tx = params->block_tx;
3364 	sdata->vif.csa_active = true;
3365 
3366 	if (sdata->csa_block_tx)
3367 		ieee80211_stop_vif_queues(local, sdata,
3368 					  IEEE80211_QUEUE_STOP_REASON_CSA);
3369 
3370 	cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3371 					  params->count);
3372 
3373 	if (changed) {
3374 		ieee80211_bss_info_change_notify(sdata, changed);
3375 		drv_channel_switch_beacon(sdata, &params->chandef);
3376 	} else {
3377 		/* if the beacon didn't change, we can finalize immediately */
3378 		ieee80211_csa_finalize(sdata);
3379 	}
3380 
3381 out:
3382 	mutex_unlock(&local->chanctx_mtx);
3383 	return err;
3384 }
3385 
3386 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3387 			     struct cfg80211_csa_settings *params)
3388 {
3389 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3390 	struct ieee80211_local *local = sdata->local;
3391 	int err;
3392 
3393 	mutex_lock(&local->mtx);
3394 	err = __ieee80211_channel_switch(wiphy, dev, params);
3395 	mutex_unlock(&local->mtx);
3396 
3397 	return err;
3398 }
3399 
3400 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3401 {
3402 	lockdep_assert_held(&local->mtx);
3403 
3404 	local->roc_cookie_counter++;
3405 
3406 	/* wow, you wrapped 64 bits ... more likely a bug */
3407 	if (WARN_ON(local->roc_cookie_counter == 0))
3408 		local->roc_cookie_counter++;
3409 
3410 	return local->roc_cookie_counter;
3411 }
3412 
3413 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3414 			     u64 *cookie, gfp_t gfp)
3415 {
3416 	unsigned long spin_flags;
3417 	struct sk_buff *ack_skb;
3418 	int id;
3419 
3420 	ack_skb = skb_copy(skb, gfp);
3421 	if (!ack_skb)
3422 		return -ENOMEM;
3423 
3424 	spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3425 	id = idr_alloc(&local->ack_status_frames, ack_skb,
3426 		       1, 0x2000, GFP_ATOMIC);
3427 	spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3428 
3429 	if (id < 0) {
3430 		kfree_skb(ack_skb);
3431 		return -ENOMEM;
3432 	}
3433 
3434 	IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3435 
3436 	*cookie = ieee80211_mgmt_tx_cookie(local);
3437 	IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3438 
3439 	return 0;
3440 }
3441 
3442 static void
3443 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3444 					  struct wireless_dev *wdev,
3445 					  struct mgmt_frame_regs *upd)
3446 {
3447 	struct ieee80211_local *local = wiphy_priv(wiphy);
3448 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3449 	u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3450 	u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3451 	bool global_change, intf_change;
3452 
3453 	global_change =
3454 		(local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3455 		(local->rx_mcast_action_reg !=
3456 		 !!(upd->global_mcast_stypes & action_mask));
3457 	local->probe_req_reg = upd->global_stypes & preq_mask;
3458 	local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3459 
3460 	intf_change = (sdata->vif.probe_req_reg !=
3461 		       !!(upd->interface_stypes & preq_mask)) ||
3462 		(sdata->vif.rx_mcast_action_reg !=
3463 		 !!(upd->interface_mcast_stypes & action_mask));
3464 	sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3465 	sdata->vif.rx_mcast_action_reg =
3466 		upd->interface_mcast_stypes & action_mask;
3467 
3468 	if (!local->open_count)
3469 		return;
3470 
3471 	if (intf_change && ieee80211_sdata_running(sdata))
3472 		drv_config_iface_filter(local, sdata,
3473 					sdata->vif.probe_req_reg ?
3474 						FIF_PROBE_REQ : 0,
3475 					FIF_PROBE_REQ);
3476 
3477 	if (global_change)
3478 		ieee80211_configure_filter(local);
3479 }
3480 
3481 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3482 {
3483 	struct ieee80211_local *local = wiphy_priv(wiphy);
3484 
3485 	if (local->started)
3486 		return -EOPNOTSUPP;
3487 
3488 	return drv_set_antenna(local, tx_ant, rx_ant);
3489 }
3490 
3491 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3492 {
3493 	struct ieee80211_local *local = wiphy_priv(wiphy);
3494 
3495 	return drv_get_antenna(local, tx_ant, rx_ant);
3496 }
3497 
3498 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3499 				    struct net_device *dev,
3500 				    struct cfg80211_gtk_rekey_data *data)
3501 {
3502 	struct ieee80211_local *local = wiphy_priv(wiphy);
3503 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3504 
3505 	if (!local->ops->set_rekey_data)
3506 		return -EOPNOTSUPP;
3507 
3508 	drv_set_rekey_data(local, sdata, data);
3509 
3510 	return 0;
3511 }
3512 
3513 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3514 				  const u8 *peer, u64 *cookie)
3515 {
3516 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3517 	struct ieee80211_local *local = sdata->local;
3518 	struct ieee80211_qos_hdr *nullfunc;
3519 	struct sk_buff *skb;
3520 	int size = sizeof(*nullfunc);
3521 	__le16 fc;
3522 	bool qos;
3523 	struct ieee80211_tx_info *info;
3524 	struct sta_info *sta;
3525 	struct ieee80211_chanctx_conf *chanctx_conf;
3526 	enum nl80211_band band;
3527 	int ret;
3528 
3529 	/* the lock is needed to assign the cookie later */
3530 	mutex_lock(&local->mtx);
3531 
3532 	rcu_read_lock();
3533 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3534 	if (WARN_ON(!chanctx_conf)) {
3535 		ret = -EINVAL;
3536 		goto unlock;
3537 	}
3538 	band = chanctx_conf->def.chan->band;
3539 	sta = sta_info_get_bss(sdata, peer);
3540 	if (sta) {
3541 		qos = sta->sta.wme;
3542 	} else {
3543 		ret = -ENOLINK;
3544 		goto unlock;
3545 	}
3546 
3547 	if (qos) {
3548 		fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3549 				 IEEE80211_STYPE_QOS_NULLFUNC |
3550 				 IEEE80211_FCTL_FROMDS);
3551 	} else {
3552 		size -= 2;
3553 		fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3554 				 IEEE80211_STYPE_NULLFUNC |
3555 				 IEEE80211_FCTL_FROMDS);
3556 	}
3557 
3558 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3559 	if (!skb) {
3560 		ret = -ENOMEM;
3561 		goto unlock;
3562 	}
3563 
3564 	skb->dev = dev;
3565 
3566 	skb_reserve(skb, local->hw.extra_tx_headroom);
3567 
3568 	nullfunc = skb_put(skb, size);
3569 	nullfunc->frame_control = fc;
3570 	nullfunc->duration_id = 0;
3571 	memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3572 	memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3573 	memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3574 	nullfunc->seq_ctrl = 0;
3575 
3576 	info = IEEE80211_SKB_CB(skb);
3577 
3578 	info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3579 		       IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3580 	info->band = band;
3581 
3582 	skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3583 	skb->priority = 7;
3584 	if (qos)
3585 		nullfunc->qos_ctrl = cpu_to_le16(7);
3586 
3587 	ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3588 	if (ret) {
3589 		kfree_skb(skb);
3590 		goto unlock;
3591 	}
3592 
3593 	local_bh_disable();
3594 	ieee80211_xmit(sdata, sta, skb);
3595 	local_bh_enable();
3596 
3597 	ret = 0;
3598 unlock:
3599 	rcu_read_unlock();
3600 	mutex_unlock(&local->mtx);
3601 
3602 	return ret;
3603 }
3604 
3605 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3606 				     struct wireless_dev *wdev,
3607 				     struct cfg80211_chan_def *chandef)
3608 {
3609 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3610 	struct ieee80211_local *local = wiphy_priv(wiphy);
3611 	struct ieee80211_chanctx_conf *chanctx_conf;
3612 	int ret = -ENODATA;
3613 
3614 	rcu_read_lock();
3615 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3616 	if (chanctx_conf) {
3617 		*chandef = sdata->vif.bss_conf.chandef;
3618 		ret = 0;
3619 	} else if (local->open_count > 0 &&
3620 		   local->open_count == local->monitors &&
3621 		   sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3622 		if (local->use_chanctx)
3623 			*chandef = local->monitor_chandef;
3624 		else
3625 			*chandef = local->_oper_chandef;
3626 		ret = 0;
3627 	}
3628 	rcu_read_unlock();
3629 
3630 	return ret;
3631 }
3632 
3633 #ifdef CONFIG_PM
3634 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3635 {
3636 	drv_set_wakeup(wiphy_priv(wiphy), enabled);
3637 }
3638 #endif
3639 
3640 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3641 				 struct net_device *dev,
3642 				 struct cfg80211_qos_map *qos_map)
3643 {
3644 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3645 	struct mac80211_qos_map *new_qos_map, *old_qos_map;
3646 
3647 	if (qos_map) {
3648 		new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3649 		if (!new_qos_map)
3650 			return -ENOMEM;
3651 		memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3652 	} else {
3653 		/* A NULL qos_map was passed to disable QoS mapping */
3654 		new_qos_map = NULL;
3655 	}
3656 
3657 	old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3658 	rcu_assign_pointer(sdata->qos_map, new_qos_map);
3659 	if (old_qos_map)
3660 		kfree_rcu(old_qos_map, rcu_head);
3661 
3662 	return 0;
3663 }
3664 
3665 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3666 				      struct net_device *dev,
3667 				      struct cfg80211_chan_def *chandef)
3668 {
3669 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3670 	int ret;
3671 	u32 changed = 0;
3672 
3673 	ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3674 	if (ret == 0)
3675 		ieee80211_bss_info_change_notify(sdata, changed);
3676 
3677 	return ret;
3678 }
3679 
3680 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3681 			       u8 tsid, const u8 *peer, u8 up,
3682 			       u16 admitted_time)
3683 {
3684 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3685 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3686 	int ac = ieee802_1d_to_ac[up];
3687 
3688 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
3689 		return -EOPNOTSUPP;
3690 
3691 	if (!(sdata->wmm_acm & BIT(up)))
3692 		return -EINVAL;
3693 
3694 	if (ifmgd->tx_tspec[ac].admitted_time)
3695 		return -EBUSY;
3696 
3697 	if (admitted_time) {
3698 		ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3699 		ifmgd->tx_tspec[ac].tsid = tsid;
3700 		ifmgd->tx_tspec[ac].up = up;
3701 	}
3702 
3703 	return 0;
3704 }
3705 
3706 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3707 			       u8 tsid, const u8 *peer)
3708 {
3709 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3710 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3711 	struct ieee80211_local *local = wiphy_priv(wiphy);
3712 	int ac;
3713 
3714 	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3715 		struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3716 
3717 		/* skip unused entries */
3718 		if (!tx_tspec->admitted_time)
3719 			continue;
3720 
3721 		if (tx_tspec->tsid != tsid)
3722 			continue;
3723 
3724 		/* due to this new packets will be reassigned to non-ACM ACs */
3725 		tx_tspec->up = -1;
3726 
3727 		/* Make sure that all packets have been sent to avoid to
3728 		 * restore the QoS params on packets that are still on the
3729 		 * queues.
3730 		 */
3731 		synchronize_net();
3732 		ieee80211_flush_queues(local, sdata, false);
3733 
3734 		/* restore the normal QoS parameters
3735 		 * (unconditionally to avoid races)
3736 		 */
3737 		tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3738 		tx_tspec->downgraded = false;
3739 		ieee80211_sta_handle_tspec_ac_params(sdata);
3740 
3741 		/* finally clear all the data */
3742 		memset(tx_tspec, 0, sizeof(*tx_tspec));
3743 
3744 		return 0;
3745 	}
3746 
3747 	return -ENOENT;
3748 }
3749 
3750 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3751 				   u8 inst_id,
3752 				   enum nl80211_nan_func_term_reason reason,
3753 				   gfp_t gfp)
3754 {
3755 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3756 	struct cfg80211_nan_func *func;
3757 	u64 cookie;
3758 
3759 	if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3760 		return;
3761 
3762 	spin_lock_bh(&sdata->u.nan.func_lock);
3763 
3764 	func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3765 	if (WARN_ON(!func)) {
3766 		spin_unlock_bh(&sdata->u.nan.func_lock);
3767 		return;
3768 	}
3769 
3770 	cookie = func->cookie;
3771 	idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3772 
3773 	spin_unlock_bh(&sdata->u.nan.func_lock);
3774 
3775 	cfg80211_free_nan_func(func);
3776 
3777 	cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3778 				     reason, cookie, gfp);
3779 }
3780 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3781 
3782 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3783 			      struct cfg80211_nan_match_params *match,
3784 			      gfp_t gfp)
3785 {
3786 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3787 	struct cfg80211_nan_func *func;
3788 
3789 	if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3790 		return;
3791 
3792 	spin_lock_bh(&sdata->u.nan.func_lock);
3793 
3794 	func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3795 	if (WARN_ON(!func)) {
3796 		spin_unlock_bh(&sdata->u.nan.func_lock);
3797 		return;
3798 	}
3799 	match->cookie = func->cookie;
3800 
3801 	spin_unlock_bh(&sdata->u.nan.func_lock);
3802 
3803 	cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3804 }
3805 EXPORT_SYMBOL(ieee80211_nan_func_match);
3806 
3807 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3808 					      struct net_device *dev,
3809 					      const bool enabled)
3810 {
3811 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3812 
3813 	sdata->u.ap.multicast_to_unicast = enabled;
3814 
3815 	return 0;
3816 }
3817 
3818 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3819 			      struct txq_info *txqi)
3820 {
3821 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3822 		txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3823 		txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3824 	}
3825 
3826 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3827 		txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3828 		txqstats->backlog_packets = txqi->tin.backlog_packets;
3829 	}
3830 
3831 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3832 		txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3833 		txqstats->flows = txqi->tin.flows;
3834 	}
3835 
3836 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3837 		txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3838 		txqstats->drops = txqi->cstats.drop_count;
3839 	}
3840 
3841 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3842 		txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3843 		txqstats->ecn_marks = txqi->cstats.ecn_mark;
3844 	}
3845 
3846 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3847 		txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3848 		txqstats->overlimit = txqi->tin.overlimit;
3849 	}
3850 
3851 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3852 		txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3853 		txqstats->collisions = txqi->tin.collisions;
3854 	}
3855 
3856 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3857 		txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3858 		txqstats->tx_bytes = txqi->tin.tx_bytes;
3859 	}
3860 
3861 	if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3862 		txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3863 		txqstats->tx_packets = txqi->tin.tx_packets;
3864 	}
3865 }
3866 
3867 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3868 				   struct wireless_dev *wdev,
3869 				   struct cfg80211_txq_stats *txqstats)
3870 {
3871 	struct ieee80211_local *local = wiphy_priv(wiphy);
3872 	struct ieee80211_sub_if_data *sdata;
3873 	int ret = 0;
3874 
3875 	if (!local->ops->wake_tx_queue)
3876 		return 1;
3877 
3878 	spin_lock_bh(&local->fq.lock);
3879 	rcu_read_lock();
3880 
3881 	if (wdev) {
3882 		sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3883 		if (!sdata->vif.txq) {
3884 			ret = 1;
3885 			goto out;
3886 		}
3887 		ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3888 	} else {
3889 		/* phy stats */
3890 		txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3891 				    BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3892 				    BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3893 				    BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3894 				    BIT(NL80211_TXQ_STATS_COLLISIONS) |
3895 				    BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3896 		txqstats->backlog_packets = local->fq.backlog;
3897 		txqstats->backlog_bytes = local->fq.memory_usage;
3898 		txqstats->overlimit = local->fq.overlimit;
3899 		txqstats->overmemory = local->fq.overmemory;
3900 		txqstats->collisions = local->fq.collisions;
3901 		txqstats->max_flows = local->fq.flows_cnt;
3902 	}
3903 
3904 out:
3905 	rcu_read_unlock();
3906 	spin_unlock_bh(&local->fq.lock);
3907 
3908 	return ret;
3909 }
3910 
3911 static int
3912 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3913 				  struct net_device *dev,
3914 				  struct cfg80211_ftm_responder_stats *ftm_stats)
3915 {
3916 	struct ieee80211_local *local = wiphy_priv(wiphy);
3917 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3918 
3919 	return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
3920 }
3921 
3922 static int
3923 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3924 		     struct cfg80211_pmsr_request *request)
3925 {
3926 	struct ieee80211_local *local = wiphy_priv(wiphy);
3927 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3928 
3929 	return drv_start_pmsr(local, sdata, request);
3930 }
3931 
3932 static void
3933 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3934 		     struct cfg80211_pmsr_request *request)
3935 {
3936 	struct ieee80211_local *local = wiphy_priv(wiphy);
3937 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3938 
3939 	return drv_abort_pmsr(local, sdata, request);
3940 }
3941 
3942 static int ieee80211_set_tid_config(struct wiphy *wiphy,
3943 				    struct net_device *dev,
3944 				    struct cfg80211_tid_config *tid_conf)
3945 {
3946 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3947 	struct sta_info *sta;
3948 	int ret;
3949 
3950 	if (!sdata->local->ops->set_tid_config)
3951 		return -EOPNOTSUPP;
3952 
3953 	if (!tid_conf->peer)
3954 		return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
3955 
3956 	mutex_lock(&sdata->local->sta_mtx);
3957 	sta = sta_info_get_bss(sdata, tid_conf->peer);
3958 	if (!sta) {
3959 		mutex_unlock(&sdata->local->sta_mtx);
3960 		return -ENOENT;
3961 	}
3962 
3963 	ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
3964 	mutex_unlock(&sdata->local->sta_mtx);
3965 
3966 	return ret;
3967 }
3968 
3969 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
3970 				      struct net_device *dev,
3971 				      const u8 *peer, u8 tids)
3972 {
3973 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3974 	struct sta_info *sta;
3975 	int ret;
3976 
3977 	if (!sdata->local->ops->reset_tid_config)
3978 		return -EOPNOTSUPP;
3979 
3980 	if (!peer)
3981 		return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
3982 
3983 	mutex_lock(&sdata->local->sta_mtx);
3984 	sta = sta_info_get_bss(sdata, peer);
3985 	if (!sta) {
3986 		mutex_unlock(&sdata->local->sta_mtx);
3987 		return -ENOENT;
3988 	}
3989 
3990 	ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
3991 	mutex_unlock(&sdata->local->sta_mtx);
3992 
3993 	return ret;
3994 }
3995 
3996 const struct cfg80211_ops mac80211_config_ops = {
3997 	.add_virtual_intf = ieee80211_add_iface,
3998 	.del_virtual_intf = ieee80211_del_iface,
3999 	.change_virtual_intf = ieee80211_change_iface,
4000 	.start_p2p_device = ieee80211_start_p2p_device,
4001 	.stop_p2p_device = ieee80211_stop_p2p_device,
4002 	.add_key = ieee80211_add_key,
4003 	.del_key = ieee80211_del_key,
4004 	.get_key = ieee80211_get_key,
4005 	.set_default_key = ieee80211_config_default_key,
4006 	.set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4007 	.set_default_beacon_key = ieee80211_config_default_beacon_key,
4008 	.start_ap = ieee80211_start_ap,
4009 	.change_beacon = ieee80211_change_beacon,
4010 	.stop_ap = ieee80211_stop_ap,
4011 	.add_station = ieee80211_add_station,
4012 	.del_station = ieee80211_del_station,
4013 	.change_station = ieee80211_change_station,
4014 	.get_station = ieee80211_get_station,
4015 	.dump_station = ieee80211_dump_station,
4016 	.dump_survey = ieee80211_dump_survey,
4017 #ifdef CONFIG_MAC80211_MESH
4018 	.add_mpath = ieee80211_add_mpath,
4019 	.del_mpath = ieee80211_del_mpath,
4020 	.change_mpath = ieee80211_change_mpath,
4021 	.get_mpath = ieee80211_get_mpath,
4022 	.dump_mpath = ieee80211_dump_mpath,
4023 	.get_mpp = ieee80211_get_mpp,
4024 	.dump_mpp = ieee80211_dump_mpp,
4025 	.update_mesh_config = ieee80211_update_mesh_config,
4026 	.get_mesh_config = ieee80211_get_mesh_config,
4027 	.join_mesh = ieee80211_join_mesh,
4028 	.leave_mesh = ieee80211_leave_mesh,
4029 #endif
4030 	.join_ocb = ieee80211_join_ocb,
4031 	.leave_ocb = ieee80211_leave_ocb,
4032 	.change_bss = ieee80211_change_bss,
4033 	.set_txq_params = ieee80211_set_txq_params,
4034 	.set_monitor_channel = ieee80211_set_monitor_channel,
4035 	.suspend = ieee80211_suspend,
4036 	.resume = ieee80211_resume,
4037 	.scan = ieee80211_scan,
4038 	.abort_scan = ieee80211_abort_scan,
4039 	.sched_scan_start = ieee80211_sched_scan_start,
4040 	.sched_scan_stop = ieee80211_sched_scan_stop,
4041 	.auth = ieee80211_auth,
4042 	.assoc = ieee80211_assoc,
4043 	.deauth = ieee80211_deauth,
4044 	.disassoc = ieee80211_disassoc,
4045 	.join_ibss = ieee80211_join_ibss,
4046 	.leave_ibss = ieee80211_leave_ibss,
4047 	.set_mcast_rate = ieee80211_set_mcast_rate,
4048 	.set_wiphy_params = ieee80211_set_wiphy_params,
4049 	.set_tx_power = ieee80211_set_tx_power,
4050 	.get_tx_power = ieee80211_get_tx_power,
4051 	.set_wds_peer = ieee80211_set_wds_peer,
4052 	.rfkill_poll = ieee80211_rfkill_poll,
4053 	CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4054 	CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4055 	.set_power_mgmt = ieee80211_set_power_mgmt,
4056 	.set_bitrate_mask = ieee80211_set_bitrate_mask,
4057 	.remain_on_channel = ieee80211_remain_on_channel,
4058 	.cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4059 	.mgmt_tx = ieee80211_mgmt_tx,
4060 	.mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4061 	.set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4062 	.set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4063 	.update_mgmt_frame_registrations =
4064 		ieee80211_update_mgmt_frame_registrations,
4065 	.set_antenna = ieee80211_set_antenna,
4066 	.get_antenna = ieee80211_get_antenna,
4067 	.set_rekey_data = ieee80211_set_rekey_data,
4068 	.tdls_oper = ieee80211_tdls_oper,
4069 	.tdls_mgmt = ieee80211_tdls_mgmt,
4070 	.tdls_channel_switch = ieee80211_tdls_channel_switch,
4071 	.tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4072 	.probe_client = ieee80211_probe_client,
4073 	.set_noack_map = ieee80211_set_noack_map,
4074 #ifdef CONFIG_PM
4075 	.set_wakeup = ieee80211_set_wakeup,
4076 #endif
4077 	.get_channel = ieee80211_cfg_get_channel,
4078 	.start_radar_detection = ieee80211_start_radar_detection,
4079 	.end_cac = ieee80211_end_cac,
4080 	.channel_switch = ieee80211_channel_switch,
4081 	.set_qos_map = ieee80211_set_qos_map,
4082 	.set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4083 	.add_tx_ts = ieee80211_add_tx_ts,
4084 	.del_tx_ts = ieee80211_del_tx_ts,
4085 	.start_nan = ieee80211_start_nan,
4086 	.stop_nan = ieee80211_stop_nan,
4087 	.nan_change_conf = ieee80211_nan_change_conf,
4088 	.add_nan_func = ieee80211_add_nan_func,
4089 	.del_nan_func = ieee80211_del_nan_func,
4090 	.set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4091 	.tx_control_port = ieee80211_tx_control_port,
4092 	.get_txq_stats = ieee80211_get_txq_stats,
4093 	.get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4094 	.start_pmsr = ieee80211_start_pmsr,
4095 	.abort_pmsr = ieee80211_abort_pmsr,
4096 	.probe_mesh_link = ieee80211_probe_mesh_link,
4097 	.set_tid_config = ieee80211_set_tid_config,
4098 	.reset_tid_config = ieee80211_reset_tid_config,
4099 };
4100