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) 2018-2022 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 struct ieee80211_link_data *
ieee80211_link_or_deflink(struct ieee80211_sub_if_data * sdata,int link_id,bool require_valid)27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id,
28 bool require_valid)
29 {
30 struct ieee80211_link_data *link;
31
32 if (link_id < 0) {
33 /*
34 * For keys, if sdata is not an MLD, we might not use
35 * the return value at all (if it's not a pairwise key),
36 * so in that case (require_valid==false) don't error.
37 */
38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif))
39 return ERR_PTR(-EINVAL);
40
41 return &sdata->deflink;
42 }
43
44 link = sdata_dereference(sdata->link[link_id], sdata);
45 if (!link)
46 return ERR_PTR(-ENOLINK);
47 return link;
48 }
49
ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data * sdata,struct vif_params * params)50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
51 struct vif_params *params)
52 {
53 bool mu_mimo_groups = false;
54 bool mu_mimo_follow = false;
55
56 if (params->vht_mumimo_groups) {
57 u64 membership;
58
59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
60
61 memcpy(sdata->vif.bss_conf.mu_group.membership,
62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
63 memcpy(sdata->vif.bss_conf.mu_group.position,
64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
65 WLAN_USER_POSITION_LEN);
66 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
67 BSS_CHANGED_MU_GROUPS);
68 /* don't care about endianness - just check for 0 */
69 memcpy(&membership, params->vht_mumimo_groups,
70 WLAN_MEMBERSHIP_LEN);
71 mu_mimo_groups = membership != 0;
72 }
73
74 if (params->vht_mumimo_follow_addr) {
75 mu_mimo_follow =
76 is_valid_ether_addr(params->vht_mumimo_follow_addr);
77 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
78 params->vht_mumimo_follow_addr);
79 }
80
81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
82 }
83
ieee80211_set_mon_options(struct ieee80211_sub_if_data * sdata,struct vif_params * params)84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
85 struct vif_params *params)
86 {
87 struct ieee80211_local *local = sdata->local;
88 struct ieee80211_sub_if_data *monitor_sdata;
89
90 /* check flags first */
91 if (params->flags && ieee80211_sdata_running(sdata)) {
92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
93
94 /*
95 * Prohibit MONITOR_FLAG_COOK_FRAMES and
96 * MONITOR_FLAG_ACTIVE to be changed while the
97 * interface is up.
98 * Else we would need to add a lot of cruft
99 * to update everything:
100 * cooked_mntrs, monitor and all fif_* counters
101 * reconfigure hardware
102 */
103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
104 return -EBUSY;
105 }
106
107 /* also validate MU-MIMO change */
108 monitor_sdata = wiphy_dereference(local->hw.wiphy,
109 local->monitor_sdata);
110
111 if (!monitor_sdata &&
112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
113 return -EOPNOTSUPP;
114
115 /* apply all changes now - no failures allowed */
116
117 if (monitor_sdata)
118 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
119
120 if (params->flags) {
121 if (ieee80211_sdata_running(sdata)) {
122 ieee80211_adjust_monitor_flags(sdata, -1);
123 sdata->u.mntr.flags = params->flags;
124 ieee80211_adjust_monitor_flags(sdata, 1);
125
126 ieee80211_configure_filter(local);
127 } else {
128 /*
129 * Because the interface is down, ieee80211_do_stop
130 * and ieee80211_do_open take care of "everything"
131 * mentioned in the comment above.
132 */
133 sdata->u.mntr.flags = params->flags;
134 }
135 }
136
137 return 0;
138 }
139
ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data * sdata,struct cfg80211_mbssid_config params,struct ieee80211_bss_conf * link_conf)140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
141 struct cfg80211_mbssid_config params,
142 struct ieee80211_bss_conf *link_conf)
143 {
144 struct ieee80211_sub_if_data *tx_sdata;
145
146 sdata->vif.mbssid_tx_vif = NULL;
147 link_conf->bssid_index = 0;
148 link_conf->nontransmitted = false;
149 link_conf->ema_ap = false;
150 link_conf->bssid_indicator = 0;
151
152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev)
153 return -EINVAL;
154
155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev);
156 if (!tx_sdata)
157 return -EINVAL;
158
159 if (tx_sdata == sdata) {
160 sdata->vif.mbssid_tx_vif = &sdata->vif;
161 } else {
162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif;
163 link_conf->nontransmitted = true;
164 link_conf->bssid_index = params.index;
165 }
166 if (params.ema)
167 link_conf->ema_ap = true;
168
169 return 0;
170 }
171
ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
173 const char *name,
174 unsigned char name_assign_type,
175 enum nl80211_iftype type,
176 struct vif_params *params)
177 {
178 struct ieee80211_local *local = wiphy_priv(wiphy);
179 struct wireless_dev *wdev;
180 struct ieee80211_sub_if_data *sdata;
181 int err;
182
183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
184 if (err)
185 return ERR_PTR(err);
186
187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
188
189 if (type == NL80211_IFTYPE_MONITOR) {
190 err = ieee80211_set_mon_options(sdata, params);
191 if (err) {
192 ieee80211_if_remove(sdata);
193 return NULL;
194 }
195 }
196
197 return wdev;
198 }
199
ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
201 {
202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
203
204 return 0;
205 }
206
ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)207 static int ieee80211_change_iface(struct wiphy *wiphy,
208 struct net_device *dev,
209 enum nl80211_iftype type,
210 struct vif_params *params)
211 {
212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
213 struct ieee80211_local *local = sdata->local;
214 struct sta_info *sta;
215 int ret;
216
217 ret = ieee80211_if_change_type(sdata, type);
218 if (ret)
219 return ret;
220
221 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
222 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
223 ieee80211_check_fast_rx_iface(sdata);
224 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
225 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
226
227 if (params->use_4addr == ifmgd->use_4addr)
228 return 0;
229
230 /* FIXME: no support for 4-addr MLO yet */
231 if (ieee80211_vif_is_mld(&sdata->vif))
232 return -EOPNOTSUPP;
233
234 sdata->u.mgd.use_4addr = params->use_4addr;
235 if (!ifmgd->associated)
236 return 0;
237
238 mutex_lock(&local->sta_mtx);
239 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
240 if (sta)
241 drv_sta_set_4addr(local, sdata, &sta->sta,
242 params->use_4addr);
243 mutex_unlock(&local->sta_mtx);
244
245 if (params->use_4addr)
246 ieee80211_send_4addr_nullfunc(local, sdata);
247 }
248
249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
250 ret = ieee80211_set_mon_options(sdata, params);
251 if (ret)
252 return ret;
253 }
254
255 return 0;
256 }
257
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)258 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
259 struct wireless_dev *wdev)
260 {
261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
262 int ret;
263
264 mutex_lock(&sdata->local->chanctx_mtx);
265 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
266 mutex_unlock(&sdata->local->chanctx_mtx);
267 if (ret < 0)
268 return ret;
269
270 return ieee80211_do_open(wdev, true);
271 }
272
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
274 struct wireless_dev *wdev)
275 {
276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
277 }
278
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)279 static int ieee80211_start_nan(struct wiphy *wiphy,
280 struct wireless_dev *wdev,
281 struct cfg80211_nan_conf *conf)
282 {
283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
284 int ret;
285
286 mutex_lock(&sdata->local->chanctx_mtx);
287 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
288 mutex_unlock(&sdata->local->chanctx_mtx);
289 if (ret < 0)
290 return ret;
291
292 ret = ieee80211_do_open(wdev, true);
293 if (ret)
294 return ret;
295
296 ret = drv_start_nan(sdata->local, sdata, conf);
297 if (ret)
298 ieee80211_sdata_stop(sdata);
299
300 sdata->u.nan.conf = *conf;
301
302 return ret;
303 }
304
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)305 static void ieee80211_stop_nan(struct wiphy *wiphy,
306 struct wireless_dev *wdev)
307 {
308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
309
310 drv_stop_nan(sdata->local, sdata);
311 ieee80211_sdata_stop(sdata);
312 }
313
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)314 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
315 struct wireless_dev *wdev,
316 struct cfg80211_nan_conf *conf,
317 u32 changes)
318 {
319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
320 struct cfg80211_nan_conf new_conf;
321 int ret = 0;
322
323 if (sdata->vif.type != NL80211_IFTYPE_NAN)
324 return -EOPNOTSUPP;
325
326 if (!ieee80211_sdata_running(sdata))
327 return -ENETDOWN;
328
329 new_conf = sdata->u.nan.conf;
330
331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
332 new_conf.master_pref = conf->master_pref;
333
334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
335 new_conf.bands = conf->bands;
336
337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
338 if (!ret)
339 sdata->u.nan.conf = new_conf;
340
341 return ret;
342 }
343
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)344 static int ieee80211_add_nan_func(struct wiphy *wiphy,
345 struct wireless_dev *wdev,
346 struct cfg80211_nan_func *nan_func)
347 {
348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
349 int ret;
350
351 if (sdata->vif.type != NL80211_IFTYPE_NAN)
352 return -EOPNOTSUPP;
353
354 if (!ieee80211_sdata_running(sdata))
355 return -ENETDOWN;
356
357 spin_lock_bh(&sdata->u.nan.func_lock);
358
359 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
361 GFP_ATOMIC);
362 spin_unlock_bh(&sdata->u.nan.func_lock);
363
364 if (ret < 0)
365 return ret;
366
367 nan_func->instance_id = ret;
368
369 WARN_ON(nan_func->instance_id == 0);
370
371 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
372 if (ret) {
373 spin_lock_bh(&sdata->u.nan.func_lock);
374 idr_remove(&sdata->u.nan.function_inst_ids,
375 nan_func->instance_id);
376 spin_unlock_bh(&sdata->u.nan.func_lock);
377 }
378
379 return ret;
380 }
381
382 static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
384 u64 cookie)
385 {
386 struct cfg80211_nan_func *func;
387 int id;
388
389 lockdep_assert_held(&sdata->u.nan.func_lock);
390
391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
392 if (func->cookie == cookie)
393 return func;
394 }
395
396 return NULL;
397 }
398
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)399 static void ieee80211_del_nan_func(struct wiphy *wiphy,
400 struct wireless_dev *wdev, u64 cookie)
401 {
402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
403 struct cfg80211_nan_func *func;
404 u8 instance_id = 0;
405
406 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
407 !ieee80211_sdata_running(sdata))
408 return;
409
410 spin_lock_bh(&sdata->u.nan.func_lock);
411
412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
413 if (func)
414 instance_id = func->instance_id;
415
416 spin_unlock_bh(&sdata->u.nan.func_lock);
417
418 if (instance_id)
419 drv_del_nan_func(sdata->local, sdata, instance_id);
420 }
421
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)422 static int ieee80211_set_noack_map(struct wiphy *wiphy,
423 struct net_device *dev,
424 u16 noack_map)
425 {
426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
427
428 sdata->noack_map = noack_map;
429
430 ieee80211_check_fast_xmit_iface(sdata);
431
432 return 0;
433 }
434
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
436 const u8 *mac_addr, u8 key_idx)
437 {
438 struct ieee80211_local *local = sdata->local;
439 struct ieee80211_key *key;
440 struct sta_info *sta;
441 int ret = -EINVAL;
442
443 if (!wiphy_ext_feature_isset(local->hw.wiphy,
444 NL80211_EXT_FEATURE_EXT_KEY_ID))
445 return -EINVAL;
446
447 sta = sta_info_get_bss(sdata, mac_addr);
448
449 if (!sta)
450 return -EINVAL;
451
452 if (sta->ptk_idx == key_idx)
453 return 0;
454
455 mutex_lock(&local->key_mtx);
456 key = key_mtx_dereference(local, sta->ptk[key_idx]);
457
458 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
459 ret = ieee80211_set_tx_key(key);
460
461 mutex_unlock(&local->key_mtx);
462 return ret;
463 }
464
ieee80211_add_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)465 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
466 int link_id, u8 key_idx, bool pairwise,
467 const u8 *mac_addr, struct key_params *params)
468 {
469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
470 struct ieee80211_link_data *link =
471 ieee80211_link_or_deflink(sdata, link_id, false);
472 struct ieee80211_local *local = sdata->local;
473 struct sta_info *sta = NULL;
474 struct ieee80211_key *key;
475 int err;
476
477 if (!ieee80211_sdata_running(sdata))
478 return -ENETDOWN;
479
480 if (IS_ERR(link))
481 return PTR_ERR(link);
482
483 if (pairwise && params->mode == NL80211_KEY_SET_TX)
484 return ieee80211_set_tx(sdata, mac_addr, key_idx);
485
486 /* reject WEP and TKIP keys if WEP failed to initialize */
487 switch (params->cipher) {
488 case WLAN_CIPHER_SUITE_WEP40:
489 case WLAN_CIPHER_SUITE_TKIP:
490 case WLAN_CIPHER_SUITE_WEP104:
491 if (link_id >= 0)
492 return -EINVAL;
493 if (WARN_ON_ONCE(fips_enabled))
494 return -EINVAL;
495 break;
496 default:
497 break;
498 }
499
500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
501 params->key, params->seq_len, params->seq);
502 if (IS_ERR(key))
503 return PTR_ERR(key);
504
505 key->conf.link_id = link_id;
506
507 if (pairwise)
508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
509
510 if (params->mode == NL80211_KEY_NO_TX)
511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
512
513 mutex_lock(&local->sta_mtx);
514
515 if (mac_addr) {
516 sta = sta_info_get_bss(sdata, mac_addr);
517 /*
518 * The ASSOC test makes sure the driver is ready to
519 * receive the key. When wpa_supplicant has roamed
520 * using FT, it attempts to set the key before
521 * association has completed, this rejects that attempt
522 * so it will set the key again after association.
523 *
524 * TODO: accept the key if we have a station entry and
525 * add it to the device after the station.
526 */
527 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
528 ieee80211_key_free_unused(key);
529 err = -ENOENT;
530 goto out_unlock;
531 }
532 }
533
534 switch (sdata->vif.type) {
535 case NL80211_IFTYPE_STATION:
536 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
537 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
538 break;
539 case NL80211_IFTYPE_AP:
540 case NL80211_IFTYPE_AP_VLAN:
541 /* Keys without a station are used for TX only */
542 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
543 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
544 break;
545 case NL80211_IFTYPE_ADHOC:
546 /* no MFP (yet) */
547 break;
548 case NL80211_IFTYPE_MESH_POINT:
549 #ifdef CONFIG_MAC80211_MESH
550 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
551 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
552 break;
553 #endif
554 case NL80211_IFTYPE_WDS:
555 case NL80211_IFTYPE_MONITOR:
556 case NL80211_IFTYPE_P2P_DEVICE:
557 case NL80211_IFTYPE_NAN:
558 case NL80211_IFTYPE_UNSPECIFIED:
559 case NUM_NL80211_IFTYPES:
560 case NL80211_IFTYPE_P2P_CLIENT:
561 case NL80211_IFTYPE_P2P_GO:
562 case NL80211_IFTYPE_OCB:
563 /* shouldn't happen */
564 WARN_ON_ONCE(1);
565 break;
566 }
567
568 err = ieee80211_key_link(key, link, sta);
569 /* KRACK protection, shouldn't happen but just silently accept key */
570 if (err == -EALREADY)
571 err = 0;
572
573 out_unlock:
574 mutex_unlock(&local->sta_mtx);
575
576 return err;
577 }
578
579 static struct ieee80211_key *
ieee80211_lookup_key(struct ieee80211_sub_if_data * sdata,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr)580 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id,
581 u8 key_idx, bool pairwise, const u8 *mac_addr)
582 {
583 struct ieee80211_local *local __maybe_unused = sdata->local;
584 struct ieee80211_link_data *link = &sdata->deflink;
585 struct ieee80211_key *key;
586
587 if (link_id >= 0) {
588 link = rcu_dereference_check(sdata->link[link_id],
589 lockdep_is_held(&sdata->wdev.mtx));
590 if (!link)
591 return NULL;
592 }
593
594 if (mac_addr) {
595 struct sta_info *sta;
596 struct link_sta_info *link_sta;
597
598 sta = sta_info_get_bss(sdata, mac_addr);
599 if (!sta)
600 return NULL;
601
602 if (link_id >= 0) {
603 link_sta = rcu_dereference_check(sta->link[link_id],
604 lockdep_is_held(&local->sta_mtx));
605 if (!link_sta)
606 return NULL;
607 } else {
608 link_sta = &sta->deflink;
609 }
610
611 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
612 return rcu_dereference_check_key_mtx(local,
613 sta->ptk[key_idx]);
614
615 if (!pairwise &&
616 key_idx < NUM_DEFAULT_KEYS +
617 NUM_DEFAULT_MGMT_KEYS +
618 NUM_DEFAULT_BEACON_KEYS)
619 return rcu_dereference_check_key_mtx(local,
620 link_sta->gtk[key_idx]);
621
622 return NULL;
623 }
624
625 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
626 return rcu_dereference_check_key_mtx(local,
627 sdata->keys[key_idx]);
628
629 key = rcu_dereference_check_key_mtx(local, link->gtk[key_idx]);
630 if (key)
631 return key;
632
633 /* or maybe it was a WEP key */
634 if (key_idx < NUM_DEFAULT_KEYS)
635 return rcu_dereference_check_key_mtx(local, sdata->keys[key_idx]);
636
637 return NULL;
638 }
639
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr)640 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
641 int link_id, u8 key_idx, bool pairwise,
642 const u8 *mac_addr)
643 {
644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
645 struct ieee80211_local *local = sdata->local;
646 struct ieee80211_key *key;
647 int ret;
648
649 mutex_lock(&local->sta_mtx);
650 mutex_lock(&local->key_mtx);
651
652 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
653 if (!key) {
654 ret = -ENOENT;
655 goto out_unlock;
656 }
657
658 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
659
660 ret = 0;
661 out_unlock:
662 mutex_unlock(&local->key_mtx);
663 mutex_unlock(&local->sta_mtx);
664
665 return ret;
666 }
667
ieee80211_get_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params * params))668 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
669 int link_id, u8 key_idx, bool pairwise,
670 const u8 *mac_addr, void *cookie,
671 void (*callback)(void *cookie,
672 struct key_params *params))
673 {
674 struct ieee80211_sub_if_data *sdata;
675 u8 seq[6] = {0};
676 struct key_params params;
677 struct ieee80211_key *key;
678 u64 pn64;
679 u32 iv32;
680 u16 iv16;
681 int err = -ENOENT;
682 struct ieee80211_key_seq kseq = {};
683
684 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
685
686 rcu_read_lock();
687
688 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
689 if (!key)
690 goto out;
691
692 memset(¶ms, 0, sizeof(params));
693
694 params.cipher = key->conf.cipher;
695
696 switch (key->conf.cipher) {
697 case WLAN_CIPHER_SUITE_TKIP:
698 pn64 = atomic64_read(&key->conf.tx_pn);
699 iv32 = TKIP_PN_TO_IV32(pn64);
700 iv16 = TKIP_PN_TO_IV16(pn64);
701
702 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
703 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
704 drv_get_key_seq(sdata->local, key, &kseq);
705 iv32 = kseq.tkip.iv32;
706 iv16 = kseq.tkip.iv16;
707 }
708
709 seq[0] = iv16 & 0xff;
710 seq[1] = (iv16 >> 8) & 0xff;
711 seq[2] = iv32 & 0xff;
712 seq[3] = (iv32 >> 8) & 0xff;
713 seq[4] = (iv32 >> 16) & 0xff;
714 seq[5] = (iv32 >> 24) & 0xff;
715 params.seq = seq;
716 params.seq_len = 6;
717 break;
718 case WLAN_CIPHER_SUITE_CCMP:
719 case WLAN_CIPHER_SUITE_CCMP_256:
720 case WLAN_CIPHER_SUITE_AES_CMAC:
721 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
722 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
723 offsetof(typeof(kseq), aes_cmac));
724 fallthrough;
725 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
726 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
727 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
728 offsetof(typeof(kseq), aes_gmac));
729 fallthrough;
730 case WLAN_CIPHER_SUITE_GCMP:
731 case WLAN_CIPHER_SUITE_GCMP_256:
732 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
733 offsetof(typeof(kseq), gcmp));
734
735 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
736 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
737 drv_get_key_seq(sdata->local, key, &kseq);
738 memcpy(seq, kseq.ccmp.pn, 6);
739 } else {
740 pn64 = atomic64_read(&key->conf.tx_pn);
741 seq[0] = pn64;
742 seq[1] = pn64 >> 8;
743 seq[2] = pn64 >> 16;
744 seq[3] = pn64 >> 24;
745 seq[4] = pn64 >> 32;
746 seq[5] = pn64 >> 40;
747 }
748 params.seq = seq;
749 params.seq_len = 6;
750 break;
751 default:
752 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
753 break;
754 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
755 break;
756 drv_get_key_seq(sdata->local, key, &kseq);
757 params.seq = kseq.hw.seq;
758 params.seq_len = kseq.hw.seq_len;
759 break;
760 }
761
762 params.key = key->conf.key;
763 params.key_len = key->conf.keylen;
764
765 callback(cookie, ¶ms);
766 err = 0;
767
768 out:
769 rcu_read_unlock();
770 return err;
771 }
772
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool uni,bool multi)773 static int ieee80211_config_default_key(struct wiphy *wiphy,
774 struct net_device *dev,
775 int link_id, u8 key_idx, bool uni,
776 bool multi)
777 {
778 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
779 struct ieee80211_link_data *link =
780 ieee80211_link_or_deflink(sdata, link_id, false);
781
782 if (IS_ERR(link))
783 return PTR_ERR(link);
784
785 ieee80211_set_default_key(link, key_idx, uni, multi);
786
787 return 0;
788 }
789
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)790 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
791 struct net_device *dev,
792 int link_id, u8 key_idx)
793 {
794 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
795 struct ieee80211_link_data *link =
796 ieee80211_link_or_deflink(sdata, link_id, true);
797
798 if (IS_ERR(link))
799 return PTR_ERR(link);
800
801 ieee80211_set_default_mgmt_key(link, key_idx);
802
803 return 0;
804 }
805
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)806 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
807 struct net_device *dev,
808 int link_id, u8 key_idx)
809 {
810 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
811 struct ieee80211_link_data *link =
812 ieee80211_link_or_deflink(sdata, link_id, true);
813
814 if (IS_ERR(link))
815 return PTR_ERR(link);
816
817 ieee80211_set_default_beacon_key(link, key_idx);
818
819 return 0;
820 }
821
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)822 void sta_set_rate_info_tx(struct sta_info *sta,
823 const struct ieee80211_tx_rate *rate,
824 struct rate_info *rinfo)
825 {
826 rinfo->flags = 0;
827 if (rate->flags & IEEE80211_TX_RC_MCS) {
828 rinfo->flags |= RATE_INFO_FLAGS_MCS;
829 rinfo->mcs = rate->idx;
830 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
831 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
832 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
833 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
834 } else {
835 struct ieee80211_supported_band *sband;
836 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
837 u16 brate;
838
839 sband = ieee80211_get_sband(sta->sdata);
840 WARN_ON_ONCE(sband && !sband->bitrates);
841 if (sband && sband->bitrates) {
842 brate = sband->bitrates[rate->idx].bitrate;
843 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
844 }
845 }
846 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
847 rinfo->bw = RATE_INFO_BW_40;
848 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
849 rinfo->bw = RATE_INFO_BW_80;
850 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
851 rinfo->bw = RATE_INFO_BW_160;
852 else
853 rinfo->bw = RATE_INFO_BW_20;
854 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
855 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
856 }
857
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)858 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
859 int idx, u8 *mac, struct station_info *sinfo)
860 {
861 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
862 struct ieee80211_local *local = sdata->local;
863 struct sta_info *sta;
864 int ret = -ENOENT;
865
866 mutex_lock(&local->sta_mtx);
867
868 sta = sta_info_get_by_idx(sdata, idx);
869 if (sta) {
870 ret = 0;
871 memcpy(mac, sta->sta.addr, ETH_ALEN);
872 sta_set_sinfo(sta, sinfo, true);
873 }
874
875 mutex_unlock(&local->sta_mtx);
876
877 return ret;
878 }
879
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)880 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
881 int idx, struct survey_info *survey)
882 {
883 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
884
885 return drv_get_survey(local, idx, survey);
886 }
887
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)888 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
889 const u8 *mac, struct station_info *sinfo)
890 {
891 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
892 struct ieee80211_local *local = sdata->local;
893 struct sta_info *sta;
894 int ret = -ENOENT;
895
896 mutex_lock(&local->sta_mtx);
897
898 sta = sta_info_get_bss(sdata, mac);
899 if (sta) {
900 ret = 0;
901 sta_set_sinfo(sta, sinfo, true);
902 }
903
904 mutex_unlock(&local->sta_mtx);
905
906 return ret;
907 }
908
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)909 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
910 struct cfg80211_chan_def *chandef)
911 {
912 struct ieee80211_local *local = wiphy_priv(wiphy);
913 struct ieee80211_sub_if_data *sdata;
914 int ret = 0;
915
916 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
917 return 0;
918
919 if (local->use_chanctx) {
920 sdata = wiphy_dereference(local->hw.wiphy,
921 local->monitor_sdata);
922 if (sdata) {
923 sdata_lock(sdata);
924 mutex_lock(&local->mtx);
925 ieee80211_link_release_channel(&sdata->deflink);
926 ret = ieee80211_link_use_channel(&sdata->deflink,
927 chandef,
928 IEEE80211_CHANCTX_EXCLUSIVE);
929 mutex_unlock(&local->mtx);
930 sdata_unlock(sdata);
931 }
932 } else {
933 mutex_lock(&local->mtx);
934 if (local->open_count == local->monitors) {
935 local->_oper_chandef = *chandef;
936 ieee80211_hw_config(local, 0);
937 }
938 mutex_unlock(&local->mtx);
939 }
940
941 if (ret == 0)
942 local->monitor_chandef = *chandef;
943
944 return ret;
945 }
946
947 static int
ieee80211_set_probe_resp(struct ieee80211_sub_if_data * sdata,const u8 * resp,size_t resp_len,const struct ieee80211_csa_settings * csa,const struct ieee80211_color_change_settings * cca,struct ieee80211_link_data * link)948 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
949 const u8 *resp, size_t resp_len,
950 const struct ieee80211_csa_settings *csa,
951 const struct ieee80211_color_change_settings *cca,
952 struct ieee80211_link_data *link)
953 {
954 struct probe_resp *new, *old;
955
956 if (!resp || !resp_len)
957 return 1;
958
959 old = sdata_dereference(link->u.ap.probe_resp, sdata);
960
961 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
962 if (!new)
963 return -ENOMEM;
964
965 new->len = resp_len;
966 memcpy(new->data, resp, resp_len);
967
968 if (csa)
969 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
970 csa->n_counter_offsets_presp *
971 sizeof(new->cntdwn_counter_offsets[0]));
972 else if (cca)
973 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
974
975 rcu_assign_pointer(link->u.ap.probe_resp, new);
976 if (old)
977 kfree_rcu(old, rcu_head);
978
979 return 0;
980 }
981
ieee80211_set_fils_discovery(struct ieee80211_sub_if_data * sdata,struct cfg80211_fils_discovery * params,struct ieee80211_link_data * link,struct ieee80211_bss_conf * link_conf)982 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
983 struct cfg80211_fils_discovery *params,
984 struct ieee80211_link_data *link,
985 struct ieee80211_bss_conf *link_conf)
986 {
987 struct fils_discovery_data *new, *old = NULL;
988 struct ieee80211_fils_discovery *fd;
989
990 if (!params->tmpl || !params->tmpl_len)
991 return -EINVAL;
992
993 fd = &link_conf->fils_discovery;
994 fd->min_interval = params->min_interval;
995 fd->max_interval = params->max_interval;
996
997 old = sdata_dereference(link->u.ap.fils_discovery, sdata);
998 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
999 if (!new)
1000 return -ENOMEM;
1001 new->len = params->tmpl_len;
1002 memcpy(new->data, params->tmpl, params->tmpl_len);
1003 rcu_assign_pointer(link->u.ap.fils_discovery, new);
1004
1005 if (old)
1006 kfree_rcu(old, rcu_head);
1007
1008 return 0;
1009 }
1010
1011 static int
ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data * sdata,struct cfg80211_unsol_bcast_probe_resp * params,struct ieee80211_link_data * link,struct ieee80211_bss_conf * link_conf)1012 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
1013 struct cfg80211_unsol_bcast_probe_resp *params,
1014 struct ieee80211_link_data *link,
1015 struct ieee80211_bss_conf *link_conf)
1016 {
1017 struct unsol_bcast_probe_resp_data *new, *old = NULL;
1018
1019 if (!params->tmpl || !params->tmpl_len)
1020 return -EINVAL;
1021
1022 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
1023 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1024 if (!new)
1025 return -ENOMEM;
1026 new->len = params->tmpl_len;
1027 memcpy(new->data, params->tmpl, params->tmpl_len);
1028 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
1029
1030 if (old)
1031 kfree_rcu(old, rcu_head);
1032
1033 link_conf->unsol_bcast_probe_resp_interval = params->interval;
1034
1035 return 0;
1036 }
1037
ieee80211_set_ftm_responder_params(struct ieee80211_sub_if_data * sdata,const u8 * lci,size_t lci_len,const u8 * civicloc,size_t civicloc_len,struct ieee80211_bss_conf * link_conf)1038 static int ieee80211_set_ftm_responder_params(
1039 struct ieee80211_sub_if_data *sdata,
1040 const u8 *lci, size_t lci_len,
1041 const u8 *civicloc, size_t civicloc_len,
1042 struct ieee80211_bss_conf *link_conf)
1043 {
1044 struct ieee80211_ftm_responder_params *new, *old;
1045 u8 *pos;
1046 int len;
1047
1048 if (!lci_len && !civicloc_len)
1049 return 0;
1050
1051 old = link_conf->ftmr_params;
1052 len = lci_len + civicloc_len;
1053
1054 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
1055 if (!new)
1056 return -ENOMEM;
1057
1058 pos = (u8 *)(new + 1);
1059 if (lci_len) {
1060 new->lci_len = lci_len;
1061 new->lci = pos;
1062 memcpy(pos, lci, lci_len);
1063 pos += lci_len;
1064 }
1065
1066 if (civicloc_len) {
1067 new->civicloc_len = civicloc_len;
1068 new->civicloc = pos;
1069 memcpy(pos, civicloc, civicloc_len);
1070 pos += civicloc_len;
1071 }
1072
1073 link_conf->ftmr_params = new;
1074 kfree(old);
1075
1076 return 0;
1077 }
1078
1079 static int
ieee80211_copy_mbssid_beacon(u8 * pos,struct cfg80211_mbssid_elems * dst,struct cfg80211_mbssid_elems * src)1080 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
1081 struct cfg80211_mbssid_elems *src)
1082 {
1083 int i, offset = 0;
1084
1085 for (i = 0; i < src->cnt; i++) {
1086 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1087 dst->elem[i].len = src->elem[i].len;
1088 dst->elem[i].data = pos + offset;
1089 offset += dst->elem[i].len;
1090 }
1091 dst->cnt = src->cnt;
1092
1093 return offset;
1094 }
1095
1096 static int
ieee80211_copy_rnr_beacon(u8 * pos,struct cfg80211_rnr_elems * dst,struct cfg80211_rnr_elems * src)1097 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst,
1098 struct cfg80211_rnr_elems *src)
1099 {
1100 int i, offset = 0;
1101
1102 for (i = 0; i < src->cnt; i++) {
1103 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1104 dst->elem[i].len = src->elem[i].len;
1105 dst->elem[i].data = pos + offset;
1106 offset += dst->elem[i].len;
1107 }
1108 dst->cnt = src->cnt;
1109
1110 return offset;
1111 }
1112
1113 static int
ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa,const struct ieee80211_color_change_settings * cca,u64 * changed)1114 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1115 struct ieee80211_link_data *link,
1116 struct cfg80211_beacon_data *params,
1117 const struct ieee80211_csa_settings *csa,
1118 const struct ieee80211_color_change_settings *cca,
1119 u64 *changed)
1120 {
1121 struct cfg80211_mbssid_elems *mbssid = NULL;
1122 struct cfg80211_rnr_elems *rnr = NULL;
1123 struct beacon_data *new, *old;
1124 int new_head_len, new_tail_len;
1125 int size, err;
1126 u64 _changed = BSS_CHANGED_BEACON;
1127 struct ieee80211_bss_conf *link_conf = link->conf;
1128
1129 old = sdata_dereference(link->u.ap.beacon, sdata);
1130
1131 /* Need to have a beacon head if we don't have one yet */
1132 if (!params->head && !old)
1133 return -EINVAL;
1134
1135 /* new or old head? */
1136 if (params->head)
1137 new_head_len = params->head_len;
1138 else
1139 new_head_len = old->head_len;
1140
1141 /* new or old tail? */
1142 if (params->tail || !old)
1143 /* params->tail_len will be zero for !params->tail */
1144 new_tail_len = params->tail_len;
1145 else
1146 new_tail_len = old->tail_len;
1147
1148 size = sizeof(*new) + new_head_len + new_tail_len;
1149
1150 /* new or old multiple BSSID elements? */
1151 if (params->mbssid_ies) {
1152 mbssid = params->mbssid_ies;
1153 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1154 if (params->rnr_ies) {
1155 rnr = params->rnr_ies;
1156 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1157 }
1158 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1159 mbssid->cnt);
1160 } else if (old && old->mbssid_ies) {
1161 mbssid = old->mbssid_ies;
1162 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1163 if (old && old->rnr_ies) {
1164 rnr = old->rnr_ies;
1165 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1166 }
1167 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1168 mbssid->cnt);
1169 }
1170
1171 new = kzalloc(size, GFP_KERNEL);
1172 if (!new)
1173 return -ENOMEM;
1174
1175 /* start filling the new info now */
1176
1177 /*
1178 * pointers go into the block we allocated,
1179 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies
1180 */
1181 new->head = ((u8 *) new) + sizeof(*new);
1182 new->tail = new->head + new_head_len;
1183 new->head_len = new_head_len;
1184 new->tail_len = new_tail_len;
1185 /* copy in optional mbssid_ies */
1186 if (mbssid) {
1187 u8 *pos = new->tail + new->tail_len;
1188
1189 new->mbssid_ies = (void *)pos;
1190 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1191 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies,
1192 mbssid);
1193 if (rnr) {
1194 new->rnr_ies = (void *)pos;
1195 pos += struct_size(new->rnr_ies, elem, rnr->cnt);
1196 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr);
1197 }
1198 /* update bssid_indicator */
1199 link_conf->bssid_indicator =
1200 ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1201 }
1202
1203 if (csa) {
1204 new->cntdwn_current_counter = csa->count;
1205 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1206 csa->n_counter_offsets_beacon *
1207 sizeof(new->cntdwn_counter_offsets[0]));
1208 } else if (cca) {
1209 new->cntdwn_current_counter = cca->count;
1210 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1211 }
1212
1213 /* copy in head */
1214 if (params->head)
1215 memcpy(new->head, params->head, new_head_len);
1216 else
1217 memcpy(new->head, old->head, new_head_len);
1218
1219 /* copy in optional tail */
1220 if (params->tail)
1221 memcpy(new->tail, params->tail, new_tail_len);
1222 else
1223 if (old)
1224 memcpy(new->tail, old->tail, new_tail_len);
1225
1226 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1227 params->probe_resp_len, csa, cca, link);
1228 if (err < 0) {
1229 kfree(new);
1230 return err;
1231 }
1232 if (err == 0)
1233 _changed |= BSS_CHANGED_AP_PROBE_RESP;
1234
1235 if (params->ftm_responder != -1) {
1236 link_conf->ftm_responder = params->ftm_responder;
1237 err = ieee80211_set_ftm_responder_params(sdata,
1238 params->lci,
1239 params->lci_len,
1240 params->civicloc,
1241 params->civicloc_len,
1242 link_conf);
1243
1244 if (err < 0) {
1245 kfree(new);
1246 return err;
1247 }
1248
1249 _changed |= BSS_CHANGED_FTM_RESPONDER;
1250 }
1251
1252 rcu_assign_pointer(link->u.ap.beacon, new);
1253 sdata->u.ap.active = true;
1254
1255 if (old)
1256 kfree_rcu(old, rcu_head);
1257
1258 *changed |= _changed;
1259 return 0;
1260 }
1261
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1262 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1263 struct cfg80211_ap_settings *params)
1264 {
1265 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1266 struct ieee80211_local *local = sdata->local;
1267 struct beacon_data *old;
1268 struct ieee80211_sub_if_data *vlan;
1269 u64 changed = BSS_CHANGED_BEACON_INT |
1270 BSS_CHANGED_BEACON_ENABLED |
1271 BSS_CHANGED_BEACON |
1272 BSS_CHANGED_P2P_PS |
1273 BSS_CHANGED_TXPOWER |
1274 BSS_CHANGED_TWT;
1275 int i, err;
1276 int prev_beacon_int;
1277 unsigned int link_id = params->beacon.link_id;
1278 struct ieee80211_link_data *link;
1279 struct ieee80211_bss_conf *link_conf;
1280
1281 link = sdata_dereference(sdata->link[link_id], sdata);
1282 if (!link)
1283 return -ENOLINK;
1284
1285 link_conf = link->conf;
1286
1287 old = sdata_dereference(link->u.ap.beacon, sdata);
1288 if (old)
1289 return -EALREADY;
1290
1291 if (params->smps_mode != NL80211_SMPS_OFF)
1292 return -ENOTSUPP;
1293
1294 link->smps_mode = IEEE80211_SMPS_OFF;
1295
1296 link->needed_rx_chains = sdata->local->rx_chains;
1297
1298 prev_beacon_int = link_conf->beacon_int;
1299 link_conf->beacon_int = params->beacon_interval;
1300
1301 if (params->ht_cap)
1302 link_conf->ht_ldpc =
1303 params->ht_cap->cap_info &
1304 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING);
1305
1306 if (params->vht_cap) {
1307 link_conf->vht_ldpc =
1308 params->vht_cap->vht_cap_info &
1309 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC);
1310 link_conf->vht_su_beamformer =
1311 params->vht_cap->vht_cap_info &
1312 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
1313 link_conf->vht_su_beamformee =
1314 params->vht_cap->vht_cap_info &
1315 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
1316 link_conf->vht_mu_beamformer =
1317 params->vht_cap->vht_cap_info &
1318 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
1319 link_conf->vht_mu_beamformee =
1320 params->vht_cap->vht_cap_info &
1321 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
1322 }
1323
1324 if (params->he_cap && params->he_oper) {
1325 link_conf->he_support = true;
1326 link_conf->htc_trig_based_pkt_ext =
1327 le32_get_bits(params->he_oper->he_oper_params,
1328 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1329 link_conf->frame_time_rts_th =
1330 le32_get_bits(params->he_oper->he_oper_params,
1331 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1332 changed |= BSS_CHANGED_HE_OBSS_PD;
1333
1334 if (params->beacon.he_bss_color.enabled)
1335 changed |= BSS_CHANGED_HE_BSS_COLOR;
1336 }
1337
1338 if (params->he_cap) {
1339 link_conf->he_ldpc =
1340 params->he_cap->phy_cap_info[1] &
1341 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
1342 link_conf->he_su_beamformer =
1343 params->he_cap->phy_cap_info[3] &
1344 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
1345 link_conf->he_su_beamformee =
1346 params->he_cap->phy_cap_info[4] &
1347 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
1348 link_conf->he_mu_beamformer =
1349 params->he_cap->phy_cap_info[4] &
1350 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
1351 link_conf->he_full_ul_mumimo =
1352 params->he_cap->phy_cap_info[2] &
1353 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
1354 }
1355
1356 if (params->eht_cap) {
1357 if (!link_conf->he_support)
1358 return -EOPNOTSUPP;
1359
1360 link_conf->eht_support = true;
1361 link_conf->eht_puncturing = params->punct_bitmap;
1362 changed |= BSS_CHANGED_EHT_PUNCTURING;
1363
1364 link_conf->eht_su_beamformer =
1365 params->eht_cap->fixed.phy_cap_info[0] &
1366 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER;
1367 link_conf->eht_su_beamformee =
1368 params->eht_cap->fixed.phy_cap_info[0] &
1369 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
1370 link_conf->eht_mu_beamformer =
1371 params->eht_cap->fixed.phy_cap_info[7] &
1372 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
1373 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
1374 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ);
1375 } else {
1376 link_conf->eht_su_beamformer = false;
1377 link_conf->eht_su_beamformee = false;
1378 link_conf->eht_mu_beamformer = false;
1379 }
1380
1381 if (sdata->vif.type == NL80211_IFTYPE_AP &&
1382 params->mbssid_config.tx_wdev) {
1383 err = ieee80211_set_ap_mbssid_options(sdata,
1384 params->mbssid_config,
1385 link_conf);
1386 if (err)
1387 return err;
1388 }
1389
1390 mutex_lock(&local->mtx);
1391 err = ieee80211_link_use_channel(link, ¶ms->chandef,
1392 IEEE80211_CHANCTX_SHARED);
1393 if (!err)
1394 ieee80211_link_copy_chanctx_to_vlans(link, false);
1395 mutex_unlock(&local->mtx);
1396 if (err) {
1397 link_conf->beacon_int = prev_beacon_int;
1398 return err;
1399 }
1400
1401 /*
1402 * Apply control port protocol, this allows us to
1403 * not encrypt dynamic WEP control frames.
1404 */
1405 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1406 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1407 sdata->control_port_over_nl80211 =
1408 params->crypto.control_port_over_nl80211;
1409 sdata->control_port_no_preauth =
1410 params->crypto.control_port_no_preauth;
1411
1412 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1413 vlan->control_port_protocol =
1414 params->crypto.control_port_ethertype;
1415 vlan->control_port_no_encrypt =
1416 params->crypto.control_port_no_encrypt;
1417 vlan->control_port_over_nl80211 =
1418 params->crypto.control_port_over_nl80211;
1419 vlan->control_port_no_preauth =
1420 params->crypto.control_port_no_preauth;
1421 }
1422
1423 link_conf->dtim_period = params->dtim_period;
1424 link_conf->enable_beacon = true;
1425 link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1426 link_conf->twt_responder = params->twt_responder;
1427 link_conf->he_obss_pd = params->he_obss_pd;
1428 link_conf->he_bss_color = params->beacon.he_bss_color;
1429 sdata->vif.cfg.s1g = params->chandef.chan->band ==
1430 NL80211_BAND_S1GHZ;
1431
1432 sdata->vif.cfg.ssid_len = params->ssid_len;
1433 if (params->ssid_len)
1434 memcpy(sdata->vif.cfg.ssid, params->ssid,
1435 params->ssid_len);
1436 link_conf->hidden_ssid =
1437 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1438
1439 memset(&link_conf->p2p_noa_attr, 0,
1440 sizeof(link_conf->p2p_noa_attr));
1441 link_conf->p2p_noa_attr.oppps_ctwindow =
1442 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1443 if (params->p2p_opp_ps)
1444 link_conf->p2p_noa_attr.oppps_ctwindow |=
1445 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1446
1447 sdata->beacon_rate_set = false;
1448 if (wiphy_ext_feature_isset(local->hw.wiphy,
1449 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1450 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1451 sdata->beacon_rateidx_mask[i] =
1452 params->beacon_rate.control[i].legacy;
1453 if (sdata->beacon_rateidx_mask[i])
1454 sdata->beacon_rate_set = true;
1455 }
1456 }
1457
1458 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1459 link_conf->beacon_tx_rate = params->beacon_rate;
1460
1461 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL,
1462 &changed);
1463 if (err < 0)
1464 goto error;
1465
1466 if (params->fils_discovery.max_interval) {
1467 err = ieee80211_set_fils_discovery(sdata,
1468 ¶ms->fils_discovery,
1469 link, link_conf);
1470 if (err < 0)
1471 goto error;
1472 changed |= BSS_CHANGED_FILS_DISCOVERY;
1473 }
1474
1475 if (params->unsol_bcast_probe_resp.interval) {
1476 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1477 ¶ms->unsol_bcast_probe_resp,
1478 link, link_conf);
1479 if (err < 0)
1480 goto error;
1481 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1482 }
1483
1484 err = drv_start_ap(sdata->local, sdata, link_conf);
1485 if (err) {
1486 old = sdata_dereference(link->u.ap.beacon, sdata);
1487
1488 if (old)
1489 kfree_rcu(old, rcu_head);
1490 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1491 sdata->u.ap.active = false;
1492 goto error;
1493 }
1494
1495 ieee80211_recalc_dtim(local, sdata);
1496 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1497 ieee80211_link_info_change_notify(sdata, link, changed);
1498
1499 netif_carrier_on(dev);
1500 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1501 netif_carrier_on(vlan->dev);
1502
1503 return 0;
1504
1505 error:
1506 mutex_lock(&local->mtx);
1507 ieee80211_link_release_channel(link);
1508 mutex_unlock(&local->mtx);
1509
1510 return err;
1511 }
1512
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * params)1513 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1514 struct cfg80211_beacon_data *params)
1515 {
1516 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1517 struct ieee80211_link_data *link;
1518 struct beacon_data *old;
1519 int err;
1520 struct ieee80211_bss_conf *link_conf;
1521 u64 changed = 0;
1522
1523 sdata_assert_lock(sdata);
1524
1525 link = sdata_dereference(sdata->link[params->link_id], sdata);
1526 if (!link)
1527 return -ENOLINK;
1528
1529 link_conf = link->conf;
1530
1531 /* don't allow changing the beacon while a countdown is in place - offset
1532 * of channel switch counter may change
1533 */
1534 if (link_conf->csa_active || link_conf->color_change_active)
1535 return -EBUSY;
1536
1537 old = sdata_dereference(link->u.ap.beacon, sdata);
1538 if (!old)
1539 return -ENOENT;
1540
1541 err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL,
1542 &changed);
1543 if (err < 0)
1544 return err;
1545
1546 if (params->he_bss_color_valid &&
1547 params->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1548 link_conf->he_bss_color.enabled = params->he_bss_color.enabled;
1549 changed |= BSS_CHANGED_HE_BSS_COLOR;
1550 }
1551
1552 ieee80211_link_info_change_notify(sdata, link, changed);
1553 return 0;
1554 }
1555
ieee80211_free_next_beacon(struct ieee80211_link_data * link)1556 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1557 {
1558 if (!link->u.ap.next_beacon)
1559 return;
1560
1561 kfree(link->u.ap.next_beacon->mbssid_ies);
1562 kfree(link->u.ap.next_beacon->rnr_ies);
1563 kfree(link->u.ap.next_beacon);
1564 link->u.ap.next_beacon = NULL;
1565 }
1566
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)1567 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1568 unsigned int link_id)
1569 {
1570 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1571 struct ieee80211_sub_if_data *vlan;
1572 struct ieee80211_local *local = sdata->local;
1573 struct beacon_data *old_beacon;
1574 struct probe_resp *old_probe_resp;
1575 struct fils_discovery_data *old_fils_discovery;
1576 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1577 struct cfg80211_chan_def chandef;
1578 struct ieee80211_link_data *link =
1579 sdata_dereference(sdata->link[link_id], sdata);
1580 struct ieee80211_bss_conf *link_conf = link->conf;
1581
1582 sdata_assert_lock(sdata);
1583
1584 old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1585 if (!old_beacon)
1586 return -ENOENT;
1587 old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1588 sdata);
1589 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1590 sdata);
1591 old_unsol_bcast_probe_resp =
1592 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1593 sdata);
1594
1595 /* abort any running channel switch or color change */
1596 mutex_lock(&local->mtx);
1597 link_conf->csa_active = false;
1598 link_conf->color_change_active = false;
1599 if (link->csa_block_tx) {
1600 ieee80211_wake_vif_queues(local, sdata,
1601 IEEE80211_QUEUE_STOP_REASON_CSA);
1602 link->csa_block_tx = false;
1603 }
1604
1605 mutex_unlock(&local->mtx);
1606
1607 ieee80211_free_next_beacon(link);
1608
1609 /* turn off carrier for this interface and dependent VLANs */
1610 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1611 netif_carrier_off(vlan->dev);
1612 netif_carrier_off(dev);
1613
1614 /* remove beacon and probe response */
1615 sdata->u.ap.active = false;
1616 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1617 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1618 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1619 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1620 kfree_rcu(old_beacon, rcu_head);
1621 if (old_probe_resp)
1622 kfree_rcu(old_probe_resp, rcu_head);
1623 if (old_fils_discovery)
1624 kfree_rcu(old_fils_discovery, rcu_head);
1625 if (old_unsol_bcast_probe_resp)
1626 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1627
1628 kfree(link_conf->ftmr_params);
1629 link_conf->ftmr_params = NULL;
1630
1631 sdata->vif.mbssid_tx_vif = NULL;
1632 link_conf->bssid_index = 0;
1633 link_conf->nontransmitted = false;
1634 link_conf->ema_ap = false;
1635 link_conf->bssid_indicator = 0;
1636
1637 __sta_info_flush(sdata, true);
1638 ieee80211_free_keys(sdata, true);
1639
1640 link_conf->enable_beacon = false;
1641 sdata->beacon_rate_set = false;
1642 sdata->vif.cfg.ssid_len = 0;
1643 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1644 ieee80211_link_info_change_notify(sdata, link,
1645 BSS_CHANGED_BEACON_ENABLED);
1646
1647 if (sdata->wdev.cac_started) {
1648 chandef = link_conf->chandef;
1649 cancel_delayed_work_sync(&link->dfs_cac_timer_work);
1650 cfg80211_cac_event(sdata->dev, &chandef,
1651 NL80211_RADAR_CAC_ABORTED,
1652 GFP_KERNEL);
1653 }
1654
1655 drv_stop_ap(sdata->local, sdata, link_conf);
1656
1657 /* free all potentially still buffered bcast frames */
1658 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1659 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1660
1661 mutex_lock(&local->mtx);
1662 ieee80211_link_copy_chanctx_to_vlans(link, true);
1663 ieee80211_link_release_channel(link);
1664 mutex_unlock(&local->mtx);
1665
1666 return 0;
1667 }
1668
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1669 static int sta_apply_auth_flags(struct ieee80211_local *local,
1670 struct sta_info *sta,
1671 u32 mask, u32 set)
1672 {
1673 int ret;
1674
1675 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1676 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1677 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1678 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1679 if (ret)
1680 return ret;
1681 }
1682
1683 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1684 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1685 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1686 /*
1687 * When peer becomes associated, init rate control as
1688 * well. Some drivers require rate control initialized
1689 * before drv_sta_state() is called.
1690 */
1691 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1692 rate_control_rate_init(sta);
1693
1694 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1695 if (ret)
1696 return ret;
1697 }
1698
1699 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1700 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1701 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1702 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1703 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1704 else
1705 ret = 0;
1706 if (ret)
1707 return ret;
1708 }
1709
1710 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1711 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1712 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1713 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1714 if (ret)
1715 return ret;
1716 }
1717
1718 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1719 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1720 test_sta_flag(sta, WLAN_STA_AUTH)) {
1721 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1722 if (ret)
1723 return ret;
1724 }
1725
1726 return 0;
1727 }
1728
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1729 static void sta_apply_mesh_params(struct ieee80211_local *local,
1730 struct sta_info *sta,
1731 struct station_parameters *params)
1732 {
1733 #ifdef CONFIG_MAC80211_MESH
1734 struct ieee80211_sub_if_data *sdata = sta->sdata;
1735 u64 changed = 0;
1736
1737 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1738 switch (params->plink_state) {
1739 case NL80211_PLINK_ESTAB:
1740 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1741 changed = mesh_plink_inc_estab_count(sdata);
1742 sta->mesh->plink_state = params->plink_state;
1743 sta->mesh->aid = params->peer_aid;
1744
1745 ieee80211_mps_sta_status_update(sta);
1746 changed |= ieee80211_mps_set_sta_local_pm(sta,
1747 sdata->u.mesh.mshcfg.power_mode);
1748
1749 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1750 /* init at low value */
1751 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1752
1753 break;
1754 case NL80211_PLINK_LISTEN:
1755 case NL80211_PLINK_BLOCKED:
1756 case NL80211_PLINK_OPN_SNT:
1757 case NL80211_PLINK_OPN_RCVD:
1758 case NL80211_PLINK_CNF_RCVD:
1759 case NL80211_PLINK_HOLDING:
1760 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1761 changed = mesh_plink_dec_estab_count(sdata);
1762 sta->mesh->plink_state = params->plink_state;
1763
1764 ieee80211_mps_sta_status_update(sta);
1765 changed |= ieee80211_mps_set_sta_local_pm(sta,
1766 NL80211_MESH_POWER_UNKNOWN);
1767 break;
1768 default:
1769 /* nothing */
1770 break;
1771 }
1772 }
1773
1774 switch (params->plink_action) {
1775 case NL80211_PLINK_ACTION_NO_ACTION:
1776 /* nothing */
1777 break;
1778 case NL80211_PLINK_ACTION_OPEN:
1779 changed |= mesh_plink_open(sta);
1780 break;
1781 case NL80211_PLINK_ACTION_BLOCK:
1782 changed |= mesh_plink_block(sta);
1783 break;
1784 }
1785
1786 if (params->local_pm)
1787 changed |= ieee80211_mps_set_sta_local_pm(sta,
1788 params->local_pm);
1789
1790 ieee80211_mbss_info_change_notify(sdata, changed);
1791 #endif
1792 }
1793
sta_link_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,bool new_link,struct link_station_parameters * params)1794 static int sta_link_apply_parameters(struct ieee80211_local *local,
1795 struct sta_info *sta, bool new_link,
1796 struct link_station_parameters *params)
1797 {
1798 int ret = 0;
1799 struct ieee80211_supported_band *sband;
1800 struct ieee80211_sub_if_data *sdata = sta->sdata;
1801 u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1802 struct ieee80211_link_data *link =
1803 sdata_dereference(sdata->link[link_id], sdata);
1804 struct link_sta_info *link_sta =
1805 rcu_dereference_protected(sta->link[link_id],
1806 lockdep_is_held(&local->sta_mtx));
1807
1808 /*
1809 * If there are no changes, then accept a link that doesn't exist,
1810 * unless it's a new link.
1811 */
1812 if (params->link_id < 0 && !new_link &&
1813 !params->link_mac && !params->txpwr_set &&
1814 !params->supported_rates_len &&
1815 !params->ht_capa && !params->vht_capa &&
1816 !params->he_capa && !params->eht_capa &&
1817 !params->opmode_notif_used)
1818 return 0;
1819
1820 if (!link || !link_sta)
1821 return -EINVAL;
1822
1823 sband = ieee80211_get_link_sband(link);
1824 if (!sband)
1825 return -EINVAL;
1826
1827 if (params->link_mac) {
1828 if (new_link) {
1829 memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1830 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1831 } else if (!ether_addr_equal(link_sta->addr,
1832 params->link_mac)) {
1833 return -EINVAL;
1834 }
1835 } else if (new_link) {
1836 return -EINVAL;
1837 }
1838
1839 if (params->txpwr_set) {
1840 link_sta->pub->txpwr.type = params->txpwr.type;
1841 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1842 link_sta->pub->txpwr.power = params->txpwr.power;
1843 ret = drv_sta_set_txpwr(local, sdata, sta);
1844 if (ret)
1845 return ret;
1846 }
1847
1848 if (params->supported_rates &&
1849 params->supported_rates_len) {
1850 ieee80211_parse_bitrates(link->conf->chandef.width,
1851 sband, params->supported_rates,
1852 params->supported_rates_len,
1853 &link_sta->pub->supp_rates[sband->band]);
1854 }
1855
1856 if (params->ht_capa)
1857 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1858 params->ht_capa, link_sta);
1859
1860 /* VHT can override some HT caps such as the A-MSDU max length */
1861 if (params->vht_capa)
1862 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1863 params->vht_capa, NULL,
1864 link_sta);
1865
1866 if (params->he_capa)
1867 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1868 (void *)params->he_capa,
1869 params->he_capa_len,
1870 (void *)params->he_6ghz_capa,
1871 link_sta);
1872
1873 if (params->he_capa && params->eht_capa)
1874 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1875 (u8 *)params->he_capa,
1876 params->he_capa_len,
1877 params->eht_capa,
1878 params->eht_capa_len,
1879 link_sta);
1880
1881 if (params->opmode_notif_used) {
1882 /* returned value is only needed for rc update, but the
1883 * rc isn't initialized here yet, so ignore it
1884 */
1885 __ieee80211_vht_handle_opmode(sdata, link_sta,
1886 params->opmode_notif,
1887 sband->band);
1888 }
1889
1890 return ret;
1891 }
1892
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1893 static int sta_apply_parameters(struct ieee80211_local *local,
1894 struct sta_info *sta,
1895 struct station_parameters *params)
1896 {
1897 struct ieee80211_sub_if_data *sdata = sta->sdata;
1898 u32 mask, set;
1899 int ret = 0;
1900
1901 mask = params->sta_flags_mask;
1902 set = params->sta_flags_set;
1903
1904 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1905 /*
1906 * In mesh mode, ASSOCIATED isn't part of the nl80211
1907 * API but must follow AUTHENTICATED for driver state.
1908 */
1909 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1910 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1911 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1912 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1913 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1914 /*
1915 * TDLS -- everything follows authorized, but
1916 * only becoming authorized is possible, not
1917 * going back
1918 */
1919 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1920 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1921 BIT(NL80211_STA_FLAG_ASSOCIATED);
1922 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1923 BIT(NL80211_STA_FLAG_ASSOCIATED);
1924 }
1925 }
1926
1927 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1928 local->hw.queues >= IEEE80211_NUM_ACS)
1929 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1930
1931 /* auth flags will be set later for TDLS,
1932 * and for unassociated stations that move to associated */
1933 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1934 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1935 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1936 ret = sta_apply_auth_flags(local, sta, mask, set);
1937 if (ret)
1938 return ret;
1939 }
1940
1941 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1942 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1943 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1944 else
1945 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1946 }
1947
1948 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1949 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1950 if (set & BIT(NL80211_STA_FLAG_MFP))
1951 set_sta_flag(sta, WLAN_STA_MFP);
1952 else
1953 clear_sta_flag(sta, WLAN_STA_MFP);
1954 }
1955
1956 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1957 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1958 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1959 else
1960 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1961 }
1962
1963 /* mark TDLS channel switch support, if the AP allows it */
1964 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1965 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
1966 params->ext_capab_len >= 4 &&
1967 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1968 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1969
1970 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1971 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1972 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1973 params->ext_capab_len >= 8 &&
1974 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1975 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1976
1977 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1978 sta->sta.uapsd_queues = params->uapsd_queues;
1979 sta->sta.max_sp = params->max_sp;
1980 }
1981
1982 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
1983 params->ext_capab_len);
1984
1985 /*
1986 * cfg80211 validates this (1-2007) and allows setting the AID
1987 * only when creating a new station entry
1988 */
1989 if (params->aid)
1990 sta->sta.aid = params->aid;
1991
1992 /*
1993 * Some of the following updates would be racy if called on an
1994 * existing station, via ieee80211_change_station(). However,
1995 * all such changes are rejected by cfg80211 except for updates
1996 * changing the supported rates on an existing but not yet used
1997 * TDLS peer.
1998 */
1999
2000 if (params->listen_interval >= 0)
2001 sta->listen_interval = params->listen_interval;
2002
2003 ret = sta_link_apply_parameters(local, sta, false,
2004 ¶ms->link_sta_params);
2005 if (ret)
2006 return ret;
2007
2008 if (params->support_p2p_ps >= 0)
2009 sta->sta.support_p2p_ps = params->support_p2p_ps;
2010
2011 if (ieee80211_vif_is_mesh(&sdata->vif))
2012 sta_apply_mesh_params(local, sta, params);
2013
2014 if (params->airtime_weight)
2015 sta->airtime_weight = params->airtime_weight;
2016
2017 /* set the STA state after all sta info from usermode has been set */
2018 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
2019 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
2020 ret = sta_apply_auth_flags(local, sta, mask, set);
2021 if (ret)
2022 return ret;
2023 }
2024
2025 /* Mark the STA as MLO if MLD MAC address is available */
2026 if (params->link_sta_params.mld_mac)
2027 sta->sta.mlo = true;
2028
2029 return 0;
2030 }
2031
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2032 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2033 const u8 *mac,
2034 struct station_parameters *params)
2035 {
2036 struct ieee80211_local *local = wiphy_priv(wiphy);
2037 struct sta_info *sta;
2038 struct ieee80211_sub_if_data *sdata;
2039 int err;
2040
2041 if (params->vlan) {
2042 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2043
2044 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2045 sdata->vif.type != NL80211_IFTYPE_AP)
2046 return -EINVAL;
2047 } else
2048 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2049
2050 if (ether_addr_equal(mac, sdata->vif.addr))
2051 return -EINVAL;
2052
2053 if (!is_valid_ether_addr(mac))
2054 return -EINVAL;
2055
2056 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
2057 sdata->vif.type == NL80211_IFTYPE_STATION &&
2058 !sdata->u.mgd.associated)
2059 return -EINVAL;
2060
2061 /*
2062 * If we have a link ID, it can be a non-MLO station on an AP MLD,
2063 * but we need to have a link_mac in that case as well, so use the
2064 * STA's MAC address in that case.
2065 */
2066 if (params->link_sta_params.link_id >= 0)
2067 sta = sta_info_alloc_with_link(sdata, mac,
2068 params->link_sta_params.link_id,
2069 params->link_sta_params.link_mac ?: mac,
2070 GFP_KERNEL);
2071 else
2072 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
2073
2074 if (!sta)
2075 return -ENOMEM;
2076
2077 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2078 sta->sta.tdls = true;
2079
2080 /* Though the mutex is not needed here (since the station is not
2081 * visible yet), sta_apply_parameters (and inner functions) require
2082 * the mutex due to other paths.
2083 */
2084 mutex_lock(&local->sta_mtx);
2085 err = sta_apply_parameters(local, sta, params);
2086 mutex_unlock(&local->sta_mtx);
2087 if (err) {
2088 sta_info_free(local, sta);
2089 return err;
2090 }
2091
2092 /*
2093 * for TDLS and for unassociated station, rate control should be
2094 * initialized only when rates are known and station is marked
2095 * authorized/associated
2096 */
2097 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2098 test_sta_flag(sta, WLAN_STA_ASSOC))
2099 rate_control_rate_init(sta);
2100
2101 return sta_info_insert(sta);
2102 }
2103
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)2104 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2105 struct station_del_parameters *params)
2106 {
2107 struct ieee80211_sub_if_data *sdata;
2108
2109 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2110
2111 if (params->mac)
2112 return sta_info_destroy_addr_bss(sdata, params->mac);
2113
2114 sta_info_flush(sdata);
2115 return 0;
2116 }
2117
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2118 static int ieee80211_change_station(struct wiphy *wiphy,
2119 struct net_device *dev, const u8 *mac,
2120 struct station_parameters *params)
2121 {
2122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2123 struct ieee80211_local *local = wiphy_priv(wiphy);
2124 struct sta_info *sta;
2125 struct ieee80211_sub_if_data *vlansdata;
2126 enum cfg80211_station_type statype;
2127 int err;
2128
2129 mutex_lock(&local->sta_mtx);
2130
2131 sta = sta_info_get_bss(sdata, mac);
2132 if (!sta) {
2133 err = -ENOENT;
2134 goto out_err;
2135 }
2136
2137 switch (sdata->vif.type) {
2138 case NL80211_IFTYPE_MESH_POINT:
2139 if (sdata->u.mesh.user_mpm)
2140 statype = CFG80211_STA_MESH_PEER_USER;
2141 else
2142 statype = CFG80211_STA_MESH_PEER_KERNEL;
2143 break;
2144 case NL80211_IFTYPE_ADHOC:
2145 statype = CFG80211_STA_IBSS;
2146 break;
2147 case NL80211_IFTYPE_STATION:
2148 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2149 statype = CFG80211_STA_AP_STA;
2150 break;
2151 }
2152 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2153 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2154 else
2155 statype = CFG80211_STA_TDLS_PEER_SETUP;
2156 break;
2157 case NL80211_IFTYPE_AP:
2158 case NL80211_IFTYPE_AP_VLAN:
2159 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2160 statype = CFG80211_STA_AP_CLIENT;
2161 else
2162 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2163 break;
2164 default:
2165 err = -EOPNOTSUPP;
2166 goto out_err;
2167 }
2168
2169 err = cfg80211_check_station_change(wiphy, params, statype);
2170 if (err)
2171 goto out_err;
2172
2173 if (params->vlan && params->vlan != sta->sdata->dev) {
2174 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2175
2176 if (params->vlan->ieee80211_ptr->use_4addr) {
2177 if (vlansdata->u.vlan.sta) {
2178 err = -EBUSY;
2179 goto out_err;
2180 }
2181
2182 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2183 __ieee80211_check_fast_rx_iface(vlansdata);
2184 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2185 }
2186
2187 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2188 sta->sdata->u.vlan.sta) {
2189 ieee80211_clear_fast_rx(sta);
2190 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2191 }
2192
2193 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2194 ieee80211_vif_dec_num_mcast(sta->sdata);
2195
2196 sta->sdata = vlansdata;
2197 ieee80211_check_fast_xmit(sta);
2198
2199 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2200 ieee80211_vif_inc_num_mcast(sta->sdata);
2201 cfg80211_send_layer2_update(sta->sdata->dev,
2202 sta->sta.addr);
2203 }
2204 }
2205
2206 /* we use sta_info_get_bss() so this might be different */
2207 if (sdata != sta->sdata) {
2208 mutex_lock_nested(&sta->sdata->wdev.mtx, 1);
2209 err = sta_apply_parameters(local, sta, params);
2210 mutex_unlock(&sta->sdata->wdev.mtx);
2211 } else {
2212 err = sta_apply_parameters(local, sta, params);
2213 }
2214 if (err)
2215 goto out_err;
2216
2217 mutex_unlock(&local->sta_mtx);
2218
2219 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2220 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2221 ieee80211_recalc_ps(local);
2222 ieee80211_recalc_ps_vif(sdata);
2223 }
2224
2225 return 0;
2226 out_err:
2227 mutex_unlock(&local->sta_mtx);
2228 return err;
2229 }
2230
2231 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2232 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2233 const u8 *dst, const u8 *next_hop)
2234 {
2235 struct ieee80211_sub_if_data *sdata;
2236 struct mesh_path *mpath;
2237 struct sta_info *sta;
2238
2239 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2240
2241 rcu_read_lock();
2242 sta = sta_info_get(sdata, next_hop);
2243 if (!sta) {
2244 rcu_read_unlock();
2245 return -ENOENT;
2246 }
2247
2248 mpath = mesh_path_add(sdata, dst);
2249 if (IS_ERR(mpath)) {
2250 rcu_read_unlock();
2251 return PTR_ERR(mpath);
2252 }
2253
2254 mesh_path_fix_nexthop(mpath, sta);
2255
2256 rcu_read_unlock();
2257 return 0;
2258 }
2259
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)2260 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2261 const u8 *dst)
2262 {
2263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2264
2265 if (dst)
2266 return mesh_path_del(sdata, dst);
2267
2268 mesh_path_flush_by_iface(sdata);
2269 return 0;
2270 }
2271
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2272 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2273 const u8 *dst, const u8 *next_hop)
2274 {
2275 struct ieee80211_sub_if_data *sdata;
2276 struct mesh_path *mpath;
2277 struct sta_info *sta;
2278
2279 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2280
2281 rcu_read_lock();
2282
2283 sta = sta_info_get(sdata, next_hop);
2284 if (!sta) {
2285 rcu_read_unlock();
2286 return -ENOENT;
2287 }
2288
2289 mpath = mesh_path_lookup(sdata, dst);
2290 if (!mpath) {
2291 rcu_read_unlock();
2292 return -ENOENT;
2293 }
2294
2295 mesh_path_fix_nexthop(mpath, sta);
2296
2297 rcu_read_unlock();
2298 return 0;
2299 }
2300
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)2301 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2302 struct mpath_info *pinfo)
2303 {
2304 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2305
2306 if (next_hop_sta)
2307 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2308 else
2309 eth_zero_addr(next_hop);
2310
2311 memset(pinfo, 0, sizeof(*pinfo));
2312
2313 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2314
2315 pinfo->filled = MPATH_INFO_FRAME_QLEN |
2316 MPATH_INFO_SN |
2317 MPATH_INFO_METRIC |
2318 MPATH_INFO_EXPTIME |
2319 MPATH_INFO_DISCOVERY_TIMEOUT |
2320 MPATH_INFO_DISCOVERY_RETRIES |
2321 MPATH_INFO_FLAGS |
2322 MPATH_INFO_HOP_COUNT |
2323 MPATH_INFO_PATH_CHANGE;
2324
2325 pinfo->frame_qlen = mpath->frame_queue.qlen;
2326 pinfo->sn = mpath->sn;
2327 pinfo->metric = mpath->metric;
2328 if (time_before(jiffies, mpath->exp_time))
2329 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2330 pinfo->discovery_timeout =
2331 jiffies_to_msecs(mpath->discovery_timeout);
2332 pinfo->discovery_retries = mpath->discovery_retries;
2333 if (mpath->flags & MESH_PATH_ACTIVE)
2334 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2335 if (mpath->flags & MESH_PATH_RESOLVING)
2336 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2337 if (mpath->flags & MESH_PATH_SN_VALID)
2338 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2339 if (mpath->flags & MESH_PATH_FIXED)
2340 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2341 if (mpath->flags & MESH_PATH_RESOLVED)
2342 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2343 pinfo->hop_count = mpath->hop_count;
2344 pinfo->path_change_count = mpath->path_change_count;
2345 }
2346
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2347 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2348 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2349
2350 {
2351 struct ieee80211_sub_if_data *sdata;
2352 struct mesh_path *mpath;
2353
2354 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2355
2356 rcu_read_lock();
2357 mpath = mesh_path_lookup(sdata, dst);
2358 if (!mpath) {
2359 rcu_read_unlock();
2360 return -ENOENT;
2361 }
2362 memcpy(dst, mpath->dst, ETH_ALEN);
2363 mpath_set_pinfo(mpath, next_hop, pinfo);
2364 rcu_read_unlock();
2365 return 0;
2366 }
2367
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2368 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2369 int idx, u8 *dst, u8 *next_hop,
2370 struct mpath_info *pinfo)
2371 {
2372 struct ieee80211_sub_if_data *sdata;
2373 struct mesh_path *mpath;
2374
2375 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2376
2377 rcu_read_lock();
2378 mpath = mesh_path_lookup_by_idx(sdata, idx);
2379 if (!mpath) {
2380 rcu_read_unlock();
2381 return -ENOENT;
2382 }
2383 memcpy(dst, mpath->dst, ETH_ALEN);
2384 mpath_set_pinfo(mpath, next_hop, pinfo);
2385 rcu_read_unlock();
2386 return 0;
2387 }
2388
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2389 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2390 struct mpath_info *pinfo)
2391 {
2392 memset(pinfo, 0, sizeof(*pinfo));
2393 memcpy(mpp, mpath->mpp, ETH_ALEN);
2394
2395 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2396 }
2397
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2398 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2399 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2400
2401 {
2402 struct ieee80211_sub_if_data *sdata;
2403 struct mesh_path *mpath;
2404
2405 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2406
2407 rcu_read_lock();
2408 mpath = mpp_path_lookup(sdata, dst);
2409 if (!mpath) {
2410 rcu_read_unlock();
2411 return -ENOENT;
2412 }
2413 memcpy(dst, mpath->dst, ETH_ALEN);
2414 mpp_set_pinfo(mpath, mpp, pinfo);
2415 rcu_read_unlock();
2416 return 0;
2417 }
2418
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2419 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2420 int idx, u8 *dst, u8 *mpp,
2421 struct mpath_info *pinfo)
2422 {
2423 struct ieee80211_sub_if_data *sdata;
2424 struct mesh_path *mpath;
2425
2426 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2427
2428 rcu_read_lock();
2429 mpath = mpp_path_lookup_by_idx(sdata, idx);
2430 if (!mpath) {
2431 rcu_read_unlock();
2432 return -ENOENT;
2433 }
2434 memcpy(dst, mpath->dst, ETH_ALEN);
2435 mpp_set_pinfo(mpath, mpp, pinfo);
2436 rcu_read_unlock();
2437 return 0;
2438 }
2439
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2440 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2441 struct net_device *dev,
2442 struct mesh_config *conf)
2443 {
2444 struct ieee80211_sub_if_data *sdata;
2445 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2446
2447 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2448 return 0;
2449 }
2450
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2451 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2452 {
2453 return (mask >> (parm-1)) & 0x1;
2454 }
2455
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2456 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2457 const struct mesh_setup *setup)
2458 {
2459 u8 *new_ie;
2460 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2461 struct ieee80211_sub_if_data, u.mesh);
2462 int i;
2463
2464 /* allocate information elements */
2465 new_ie = NULL;
2466
2467 if (setup->ie_len) {
2468 new_ie = kmemdup(setup->ie, setup->ie_len,
2469 GFP_KERNEL);
2470 if (!new_ie)
2471 return -ENOMEM;
2472 }
2473 ifmsh->ie_len = setup->ie_len;
2474 ifmsh->ie = new_ie;
2475
2476 /* now copy the rest of the setup parameters */
2477 ifmsh->mesh_id_len = setup->mesh_id_len;
2478 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2479 ifmsh->mesh_sp_id = setup->sync_method;
2480 ifmsh->mesh_pp_id = setup->path_sel_proto;
2481 ifmsh->mesh_pm_id = setup->path_metric;
2482 ifmsh->user_mpm = setup->user_mpm;
2483 ifmsh->mesh_auth_id = setup->auth_id;
2484 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2485 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2486 if (setup->is_authenticated)
2487 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2488 if (setup->is_secure)
2489 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2490
2491 /* mcast rate setting in Mesh Node */
2492 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2493 sizeof(setup->mcast_rate));
2494 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2495
2496 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2497 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2498
2499 sdata->beacon_rate_set = false;
2500 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2501 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2502 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2503 sdata->beacon_rateidx_mask[i] =
2504 setup->beacon_rate.control[i].legacy;
2505 if (sdata->beacon_rateidx_mask[i])
2506 sdata->beacon_rate_set = true;
2507 }
2508 }
2509
2510 return 0;
2511 }
2512
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2513 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2514 struct net_device *dev, u32 mask,
2515 const struct mesh_config *nconf)
2516 {
2517 struct mesh_config *conf;
2518 struct ieee80211_sub_if_data *sdata;
2519 struct ieee80211_if_mesh *ifmsh;
2520
2521 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2522 ifmsh = &sdata->u.mesh;
2523
2524 /* Set the config options which we are interested in setting */
2525 conf = &(sdata->u.mesh.mshcfg);
2526 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2527 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2528 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2529 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2530 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2531 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2532 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2533 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2534 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2535 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2536 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2537 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2538 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2539 conf->element_ttl = nconf->element_ttl;
2540 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2541 if (ifmsh->user_mpm)
2542 return -EBUSY;
2543 conf->auto_open_plinks = nconf->auto_open_plinks;
2544 }
2545 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2546 conf->dot11MeshNbrOffsetMaxNeighbor =
2547 nconf->dot11MeshNbrOffsetMaxNeighbor;
2548 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2549 conf->dot11MeshHWMPmaxPREQretries =
2550 nconf->dot11MeshHWMPmaxPREQretries;
2551 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2552 conf->path_refresh_time = nconf->path_refresh_time;
2553 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2554 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2555 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2556 conf->dot11MeshHWMPactivePathTimeout =
2557 nconf->dot11MeshHWMPactivePathTimeout;
2558 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2559 conf->dot11MeshHWMPpreqMinInterval =
2560 nconf->dot11MeshHWMPpreqMinInterval;
2561 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2562 conf->dot11MeshHWMPperrMinInterval =
2563 nconf->dot11MeshHWMPperrMinInterval;
2564 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2565 mask))
2566 conf->dot11MeshHWMPnetDiameterTraversalTime =
2567 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2568 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2569 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2570 ieee80211_mesh_root_setup(ifmsh);
2571 }
2572 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2573 /* our current gate announcement implementation rides on root
2574 * announcements, so require this ifmsh to also be a root node
2575 * */
2576 if (nconf->dot11MeshGateAnnouncementProtocol &&
2577 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2578 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2579 ieee80211_mesh_root_setup(ifmsh);
2580 }
2581 conf->dot11MeshGateAnnouncementProtocol =
2582 nconf->dot11MeshGateAnnouncementProtocol;
2583 }
2584 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2585 conf->dot11MeshHWMPRannInterval =
2586 nconf->dot11MeshHWMPRannInterval;
2587 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2588 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2589 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2590 /* our RSSI threshold implementation is supported only for
2591 * devices that report signal in dBm.
2592 */
2593 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2594 return -ENOTSUPP;
2595 conf->rssi_threshold = nconf->rssi_threshold;
2596 }
2597 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2598 conf->ht_opmode = nconf->ht_opmode;
2599 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2600 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2601 BSS_CHANGED_HT);
2602 }
2603 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2604 conf->dot11MeshHWMPactivePathToRootTimeout =
2605 nconf->dot11MeshHWMPactivePathToRootTimeout;
2606 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2607 conf->dot11MeshHWMProotInterval =
2608 nconf->dot11MeshHWMProotInterval;
2609 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2610 conf->dot11MeshHWMPconfirmationInterval =
2611 nconf->dot11MeshHWMPconfirmationInterval;
2612 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2613 conf->power_mode = nconf->power_mode;
2614 ieee80211_mps_local_status_update(sdata);
2615 }
2616 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2617 conf->dot11MeshAwakeWindowDuration =
2618 nconf->dot11MeshAwakeWindowDuration;
2619 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2620 conf->plink_timeout = nconf->plink_timeout;
2621 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2622 conf->dot11MeshConnectedToMeshGate =
2623 nconf->dot11MeshConnectedToMeshGate;
2624 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2625 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2626 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2627 conf->dot11MeshConnectedToAuthServer =
2628 nconf->dot11MeshConnectedToAuthServer;
2629 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2630 return 0;
2631 }
2632
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2633 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2634 const struct mesh_config *conf,
2635 const struct mesh_setup *setup)
2636 {
2637 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2638 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2639 int err;
2640
2641 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2642 err = copy_mesh_setup(ifmsh, setup);
2643 if (err)
2644 return err;
2645
2646 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2647
2648 /* can mesh use other SMPS modes? */
2649 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2650 sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2651
2652 mutex_lock(&sdata->local->mtx);
2653 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef,
2654 IEEE80211_CHANCTX_SHARED);
2655 mutex_unlock(&sdata->local->mtx);
2656 if (err)
2657 return err;
2658
2659 return ieee80211_start_mesh(sdata);
2660 }
2661
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2662 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2663 {
2664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2665
2666 ieee80211_stop_mesh(sdata);
2667 mutex_lock(&sdata->local->mtx);
2668 ieee80211_link_release_channel(&sdata->deflink);
2669 kfree(sdata->u.mesh.ie);
2670 mutex_unlock(&sdata->local->mtx);
2671
2672 return 0;
2673 }
2674 #endif
2675
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2676 static int ieee80211_change_bss(struct wiphy *wiphy,
2677 struct net_device *dev,
2678 struct bss_parameters *params)
2679 {
2680 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2681 struct ieee80211_link_data *link;
2682 struct ieee80211_supported_band *sband;
2683 u64 changed = 0;
2684
2685 link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2686 if (IS_ERR(link))
2687 return PTR_ERR(link);
2688
2689 if (!sdata_dereference(link->u.ap.beacon, sdata))
2690 return -ENOENT;
2691
2692 sband = ieee80211_get_link_sband(link);
2693 if (!sband)
2694 return -EINVAL;
2695
2696 if (params->basic_rates) {
2697 if (!ieee80211_parse_bitrates(link->conf->chandef.width,
2698 wiphy->bands[sband->band],
2699 params->basic_rates,
2700 params->basic_rates_len,
2701 &link->conf->basic_rates))
2702 return -EINVAL;
2703 changed |= BSS_CHANGED_BASIC_RATES;
2704 ieee80211_check_rate_mask(link);
2705 }
2706
2707 if (params->use_cts_prot >= 0) {
2708 link->conf->use_cts_prot = params->use_cts_prot;
2709 changed |= BSS_CHANGED_ERP_CTS_PROT;
2710 }
2711 if (params->use_short_preamble >= 0) {
2712 link->conf->use_short_preamble = params->use_short_preamble;
2713 changed |= BSS_CHANGED_ERP_PREAMBLE;
2714 }
2715
2716 if (!link->conf->use_short_slot &&
2717 (sband->band == NL80211_BAND_5GHZ ||
2718 sband->band == NL80211_BAND_6GHZ)) {
2719 link->conf->use_short_slot = true;
2720 changed |= BSS_CHANGED_ERP_SLOT;
2721 }
2722
2723 if (params->use_short_slot_time >= 0) {
2724 link->conf->use_short_slot = params->use_short_slot_time;
2725 changed |= BSS_CHANGED_ERP_SLOT;
2726 }
2727
2728 if (params->ap_isolate >= 0) {
2729 if (params->ap_isolate)
2730 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2731 else
2732 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2733 ieee80211_check_fast_rx_iface(sdata);
2734 }
2735
2736 if (params->ht_opmode >= 0) {
2737 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2738 changed |= BSS_CHANGED_HT;
2739 }
2740
2741 if (params->p2p_ctwindow >= 0) {
2742 link->conf->p2p_noa_attr.oppps_ctwindow &=
2743 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2744 link->conf->p2p_noa_attr.oppps_ctwindow |=
2745 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2746 changed |= BSS_CHANGED_P2P_PS;
2747 }
2748
2749 if (params->p2p_opp_ps > 0) {
2750 link->conf->p2p_noa_attr.oppps_ctwindow |=
2751 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2752 changed |= BSS_CHANGED_P2P_PS;
2753 } else if (params->p2p_opp_ps == 0) {
2754 link->conf->p2p_noa_attr.oppps_ctwindow &=
2755 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2756 changed |= BSS_CHANGED_P2P_PS;
2757 }
2758
2759 ieee80211_link_info_change_notify(sdata, link, changed);
2760
2761 return 0;
2762 }
2763
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2764 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2765 struct net_device *dev,
2766 struct ieee80211_txq_params *params)
2767 {
2768 struct ieee80211_local *local = wiphy_priv(wiphy);
2769 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2770 struct ieee80211_link_data *link =
2771 ieee80211_link_or_deflink(sdata, params->link_id, true);
2772 struct ieee80211_tx_queue_params p;
2773
2774 if (!local->ops->conf_tx)
2775 return -EOPNOTSUPP;
2776
2777 if (local->hw.queues < IEEE80211_NUM_ACS)
2778 return -EOPNOTSUPP;
2779
2780 if (IS_ERR(link))
2781 return PTR_ERR(link);
2782
2783 memset(&p, 0, sizeof(p));
2784 p.aifs = params->aifs;
2785 p.cw_max = params->cwmax;
2786 p.cw_min = params->cwmin;
2787 p.txop = params->txop;
2788
2789 /*
2790 * Setting tx queue params disables u-apsd because it's only
2791 * called in master mode.
2792 */
2793 p.uapsd = false;
2794
2795 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2796
2797 link->tx_conf[params->ac] = p;
2798 if (drv_conf_tx(local, link, params->ac, &p)) {
2799 wiphy_debug(local->hw.wiphy,
2800 "failed to set TX queue parameters for AC %d\n",
2801 params->ac);
2802 return -EINVAL;
2803 }
2804
2805 ieee80211_link_info_change_notify(sdata, link,
2806 BSS_CHANGED_QOS);
2807
2808 return 0;
2809 }
2810
2811 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2812 static int ieee80211_suspend(struct wiphy *wiphy,
2813 struct cfg80211_wowlan *wowlan)
2814 {
2815 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2816 }
2817
ieee80211_resume(struct wiphy * wiphy)2818 static int ieee80211_resume(struct wiphy *wiphy)
2819 {
2820 return __ieee80211_resume(wiphy_priv(wiphy));
2821 }
2822 #else
2823 #define ieee80211_suspend NULL
2824 #define ieee80211_resume NULL
2825 #endif
2826
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2827 static int ieee80211_scan(struct wiphy *wiphy,
2828 struct cfg80211_scan_request *req)
2829 {
2830 struct ieee80211_sub_if_data *sdata;
2831
2832 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2833
2834 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2835 case NL80211_IFTYPE_STATION:
2836 case NL80211_IFTYPE_ADHOC:
2837 case NL80211_IFTYPE_MESH_POINT:
2838 case NL80211_IFTYPE_P2P_CLIENT:
2839 case NL80211_IFTYPE_P2P_DEVICE:
2840 break;
2841 case NL80211_IFTYPE_P2P_GO:
2842 if (sdata->local->ops->hw_scan)
2843 break;
2844 /*
2845 * FIXME: implement NoA while scanning in software,
2846 * for now fall through to allow scanning only when
2847 * beaconing hasn't been configured yet
2848 */
2849 fallthrough;
2850 case NL80211_IFTYPE_AP:
2851 /*
2852 * If the scan has been forced (and the driver supports
2853 * forcing), don't care about being beaconing already.
2854 * This will create problems to the attached stations (e.g. all
2855 * the frames sent while scanning on other channel will be
2856 * lost)
2857 */
2858 if (sdata->deflink.u.ap.beacon &&
2859 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2860 !(req->flags & NL80211_SCAN_FLAG_AP)))
2861 return -EOPNOTSUPP;
2862 break;
2863 case NL80211_IFTYPE_NAN:
2864 default:
2865 return -EOPNOTSUPP;
2866 }
2867
2868 return ieee80211_request_scan(sdata, req);
2869 }
2870
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2871 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2872 {
2873 ieee80211_scan_cancel(wiphy_priv(wiphy));
2874 }
2875
2876 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2877 ieee80211_sched_scan_start(struct wiphy *wiphy,
2878 struct net_device *dev,
2879 struct cfg80211_sched_scan_request *req)
2880 {
2881 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2882
2883 if (!sdata->local->ops->sched_scan_start)
2884 return -EOPNOTSUPP;
2885
2886 return ieee80211_request_sched_scan_start(sdata, req);
2887 }
2888
2889 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2890 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2891 u64 reqid)
2892 {
2893 struct ieee80211_local *local = wiphy_priv(wiphy);
2894
2895 if (!local->ops->sched_scan_stop)
2896 return -EOPNOTSUPP;
2897
2898 return ieee80211_request_sched_scan_stop(local);
2899 }
2900
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2901 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2902 struct cfg80211_auth_request *req)
2903 {
2904 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2905 }
2906
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2907 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2908 struct cfg80211_assoc_request *req)
2909 {
2910 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2911 }
2912
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2913 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2914 struct cfg80211_deauth_request *req)
2915 {
2916 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2917 }
2918
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2919 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2920 struct cfg80211_disassoc_request *req)
2921 {
2922 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2923 }
2924
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2925 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2926 struct cfg80211_ibss_params *params)
2927 {
2928 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2929 }
2930
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2931 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2932 {
2933 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2934 }
2935
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2936 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2937 struct ocb_setup *setup)
2938 {
2939 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2940 }
2941
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2942 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2943 {
2944 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2945 }
2946
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2947 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2948 int rate[NUM_NL80211_BANDS])
2949 {
2950 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2951
2952 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2953 sizeof(int) * NUM_NL80211_BANDS);
2954
2955 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2956 BSS_CHANGED_MCAST_RATE);
2957
2958 return 0;
2959 }
2960
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2961 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2962 {
2963 struct ieee80211_local *local = wiphy_priv(wiphy);
2964 int err;
2965
2966 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2967 ieee80211_check_fast_xmit_all(local);
2968
2969 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2970
2971 if (err) {
2972 ieee80211_check_fast_xmit_all(local);
2973 return err;
2974 }
2975 }
2976
2977 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2978 (changed & WIPHY_PARAM_DYN_ACK)) {
2979 s16 coverage_class;
2980
2981 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2982 wiphy->coverage_class : -1;
2983 err = drv_set_coverage_class(local, coverage_class);
2984
2985 if (err)
2986 return err;
2987 }
2988
2989 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2990 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2991
2992 if (err)
2993 return err;
2994 }
2995
2996 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2997 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2998 return -EINVAL;
2999 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
3000 }
3001 if (changed & WIPHY_PARAM_RETRY_LONG) {
3002 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
3003 return -EINVAL;
3004 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
3005 }
3006 if (changed &
3007 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
3008 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
3009
3010 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
3011 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
3012 WIPHY_PARAM_TXQ_QUANTUM))
3013 ieee80211_txq_set_params(local);
3014
3015 return 0;
3016 }
3017
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)3018 static int ieee80211_set_tx_power(struct wiphy *wiphy,
3019 struct wireless_dev *wdev,
3020 enum nl80211_tx_power_setting type, int mbm)
3021 {
3022 struct ieee80211_local *local = wiphy_priv(wiphy);
3023 struct ieee80211_sub_if_data *sdata;
3024 enum nl80211_tx_power_setting txp_type = type;
3025 bool update_txp_type = false;
3026 bool has_monitor = false;
3027
3028 if (wdev) {
3029 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3030
3031 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3032 sdata = wiphy_dereference(local->hw.wiphy,
3033 local->monitor_sdata);
3034 if (!sdata)
3035 return -EOPNOTSUPP;
3036 }
3037
3038 switch (type) {
3039 case NL80211_TX_POWER_AUTOMATIC:
3040 sdata->deflink.user_power_level =
3041 IEEE80211_UNSET_POWER_LEVEL;
3042 txp_type = NL80211_TX_POWER_LIMITED;
3043 break;
3044 case NL80211_TX_POWER_LIMITED:
3045 case NL80211_TX_POWER_FIXED:
3046 if (mbm < 0 || (mbm % 100))
3047 return -EOPNOTSUPP;
3048 sdata->deflink.user_power_level = MBM_TO_DBM(mbm);
3049 break;
3050 }
3051
3052 if (txp_type != sdata->vif.bss_conf.txpower_type) {
3053 update_txp_type = true;
3054 sdata->vif.bss_conf.txpower_type = txp_type;
3055 }
3056
3057 ieee80211_recalc_txpower(sdata, update_txp_type);
3058
3059 return 0;
3060 }
3061
3062 switch (type) {
3063 case NL80211_TX_POWER_AUTOMATIC:
3064 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
3065 txp_type = NL80211_TX_POWER_LIMITED;
3066 break;
3067 case NL80211_TX_POWER_LIMITED:
3068 case NL80211_TX_POWER_FIXED:
3069 if (mbm < 0 || (mbm % 100))
3070 return -EOPNOTSUPP;
3071 local->user_power_level = MBM_TO_DBM(mbm);
3072 break;
3073 }
3074
3075 mutex_lock(&local->iflist_mtx);
3076 list_for_each_entry(sdata, &local->interfaces, list) {
3077 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3078 has_monitor = true;
3079 continue;
3080 }
3081 sdata->deflink.user_power_level = local->user_power_level;
3082 if (txp_type != sdata->vif.bss_conf.txpower_type)
3083 update_txp_type = true;
3084 sdata->vif.bss_conf.txpower_type = txp_type;
3085 }
3086 list_for_each_entry(sdata, &local->interfaces, list) {
3087 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
3088 continue;
3089 ieee80211_recalc_txpower(sdata, update_txp_type);
3090 }
3091 mutex_unlock(&local->iflist_mtx);
3092
3093 if (has_monitor) {
3094 sdata = wiphy_dereference(local->hw.wiphy,
3095 local->monitor_sdata);
3096 if (sdata) {
3097 sdata->deflink.user_power_level = local->user_power_level;
3098 if (txp_type != sdata->vif.bss_conf.txpower_type)
3099 update_txp_type = true;
3100 sdata->vif.bss_conf.txpower_type = txp_type;
3101
3102 ieee80211_recalc_txpower(sdata, update_txp_type);
3103 }
3104 }
3105
3106 return 0;
3107 }
3108
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)3109 static int ieee80211_get_tx_power(struct wiphy *wiphy,
3110 struct wireless_dev *wdev,
3111 int *dbm)
3112 {
3113 struct ieee80211_local *local = wiphy_priv(wiphy);
3114 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3115
3116 if (local->ops->get_txpower)
3117 return drv_get_txpower(local, sdata, dbm);
3118
3119 if (!local->use_chanctx)
3120 *dbm = local->hw.conf.power_level;
3121 else
3122 *dbm = sdata->vif.bss_conf.txpower;
3123
3124 return 0;
3125 }
3126
ieee80211_rfkill_poll(struct wiphy * wiphy)3127 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3128 {
3129 struct ieee80211_local *local = wiphy_priv(wiphy);
3130
3131 drv_rfkill_poll(local);
3132 }
3133
3134 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)3135 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3136 struct wireless_dev *wdev,
3137 void *data, int len)
3138 {
3139 struct ieee80211_local *local = wiphy_priv(wiphy);
3140 struct ieee80211_vif *vif = NULL;
3141
3142 if (!local->ops->testmode_cmd)
3143 return -EOPNOTSUPP;
3144
3145 if (wdev) {
3146 struct ieee80211_sub_if_data *sdata;
3147
3148 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3149 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3150 vif = &sdata->vif;
3151 }
3152
3153 return local->ops->testmode_cmd(&local->hw, vif, data, len);
3154 }
3155
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)3156 static int ieee80211_testmode_dump(struct wiphy *wiphy,
3157 struct sk_buff *skb,
3158 struct netlink_callback *cb,
3159 void *data, int len)
3160 {
3161 struct ieee80211_local *local = wiphy_priv(wiphy);
3162
3163 if (!local->ops->testmode_dump)
3164 return -EOPNOTSUPP;
3165
3166 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3167 }
3168 #endif
3169
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,enum ieee80211_smps_mode smps_mode)3170 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3171 struct ieee80211_link_data *link,
3172 enum ieee80211_smps_mode smps_mode)
3173 {
3174 const u8 *ap;
3175 enum ieee80211_smps_mode old_req;
3176 int err;
3177 struct sta_info *sta;
3178 bool tdls_peer_found = false;
3179
3180 lockdep_assert_held(&sdata->wdev.mtx);
3181
3182 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3183 return -EINVAL;
3184
3185 old_req = link->u.mgd.req_smps;
3186 link->u.mgd.req_smps = smps_mode;
3187
3188 if (old_req == smps_mode &&
3189 smps_mode != IEEE80211_SMPS_AUTOMATIC)
3190 return 0;
3191
3192 /*
3193 * If not associated, or current association is not an HT
3194 * association, there's no need to do anything, just store
3195 * the new value until we associate.
3196 */
3197 if (!sdata->u.mgd.associated ||
3198 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
3199 return 0;
3200
3201 ap = link->u.mgd.bssid;
3202
3203 rcu_read_lock();
3204 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3205 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3206 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3207 continue;
3208
3209 tdls_peer_found = true;
3210 break;
3211 }
3212 rcu_read_unlock();
3213
3214 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3215 if (tdls_peer_found || !sdata->u.mgd.powersave)
3216 smps_mode = IEEE80211_SMPS_OFF;
3217 else
3218 smps_mode = IEEE80211_SMPS_DYNAMIC;
3219 }
3220
3221 /* send SM PS frame to AP */
3222 err = ieee80211_send_smps_action(sdata, smps_mode,
3223 ap, ap);
3224 if (err)
3225 link->u.mgd.req_smps = old_req;
3226 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3227 ieee80211_teardown_tdls_peers(sdata);
3228
3229 return err;
3230 }
3231
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)3232 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3233 bool enabled, int timeout)
3234 {
3235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3236 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3237 unsigned int link_id;
3238
3239 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3240 return -EOPNOTSUPP;
3241
3242 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3243 return -EOPNOTSUPP;
3244
3245 if (enabled == sdata->u.mgd.powersave &&
3246 timeout == local->dynamic_ps_forced_timeout)
3247 return 0;
3248
3249 sdata->u.mgd.powersave = enabled;
3250 local->dynamic_ps_forced_timeout = timeout;
3251
3252 /* no change, but if automatic follow powersave */
3253 sdata_lock(sdata);
3254 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3255 struct ieee80211_link_data *link;
3256
3257 link = sdata_dereference(sdata->link[link_id], sdata);
3258
3259 if (!link)
3260 continue;
3261 __ieee80211_request_smps_mgd(sdata, link,
3262 link->u.mgd.req_smps);
3263 }
3264 sdata_unlock(sdata);
3265
3266 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3267 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3268
3269 ieee80211_recalc_ps(local);
3270 ieee80211_recalc_ps_vif(sdata);
3271 ieee80211_check_fast_rx_iface(sdata);
3272
3273 return 0;
3274 }
3275
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)3276 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3277 struct net_device *dev,
3278 s32 rssi_thold, u32 rssi_hyst)
3279 {
3280 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3281 struct ieee80211_vif *vif = &sdata->vif;
3282 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3283
3284 if (rssi_thold == bss_conf->cqm_rssi_thold &&
3285 rssi_hyst == bss_conf->cqm_rssi_hyst)
3286 return 0;
3287
3288 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3289 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3290 return -EOPNOTSUPP;
3291
3292 bss_conf->cqm_rssi_thold = rssi_thold;
3293 bss_conf->cqm_rssi_hyst = rssi_hyst;
3294 bss_conf->cqm_rssi_low = 0;
3295 bss_conf->cqm_rssi_high = 0;
3296 sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3297
3298 /* tell the driver upon association, unless already associated */
3299 if (sdata->u.mgd.associated &&
3300 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3301 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3302 BSS_CHANGED_CQM);
3303
3304 return 0;
3305 }
3306
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)3307 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3308 struct net_device *dev,
3309 s32 rssi_low, s32 rssi_high)
3310 {
3311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3312 struct ieee80211_vif *vif = &sdata->vif;
3313 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3314
3315 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
3316 return -EOPNOTSUPP;
3317
3318 bss_conf->cqm_rssi_low = rssi_low;
3319 bss_conf->cqm_rssi_high = rssi_high;
3320 bss_conf->cqm_rssi_thold = 0;
3321 bss_conf->cqm_rssi_hyst = 0;
3322 sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3323
3324 /* tell the driver upon association, unless already associated */
3325 if (sdata->u.mgd.associated &&
3326 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3327 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3328 BSS_CHANGED_CQM);
3329
3330 return 0;
3331 }
3332
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * addr,const struct cfg80211_bitrate_mask * mask)3333 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3334 struct net_device *dev,
3335 unsigned int link_id,
3336 const u8 *addr,
3337 const struct cfg80211_bitrate_mask *mask)
3338 {
3339 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3340 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3341 int i, ret;
3342
3343 if (!ieee80211_sdata_running(sdata))
3344 return -ENETDOWN;
3345
3346 /*
3347 * If active validate the setting and reject it if it doesn't leave
3348 * at least one basic rate usable, since we really have to be able
3349 * to send something, and if we're an AP we have to be able to do
3350 * so at a basic rate so that all clients can receive it.
3351 */
3352 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3353 sdata->vif.bss_conf.chandef.chan) {
3354 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3355 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
3356
3357 if (!(mask->control[band].legacy & basic_rates))
3358 return -EINVAL;
3359 }
3360
3361 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3362 ret = drv_set_bitrate_mask(local, sdata, mask);
3363 if (ret)
3364 return ret;
3365 }
3366
3367 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3368 struct ieee80211_supported_band *sband = wiphy->bands[i];
3369 int j;
3370
3371 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3372 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3373 sizeof(mask->control[i].ht_mcs));
3374 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3375 mask->control[i].vht_mcs,
3376 sizeof(mask->control[i].vht_mcs));
3377
3378 sdata->rc_has_mcs_mask[i] = false;
3379 sdata->rc_has_vht_mcs_mask[i] = false;
3380 if (!sband)
3381 continue;
3382
3383 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3384 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3385 sdata->rc_has_mcs_mask[i] = true;
3386 break;
3387 }
3388 }
3389
3390 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3391 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3392 sdata->rc_has_vht_mcs_mask[i] = true;
3393 break;
3394 }
3395 }
3396 }
3397
3398 return 0;
3399 }
3400
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3401 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3402 struct net_device *dev,
3403 struct cfg80211_chan_def *chandef,
3404 u32 cac_time_ms)
3405 {
3406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3407 struct ieee80211_local *local = sdata->local;
3408 int err;
3409
3410 mutex_lock(&local->mtx);
3411 if (!list_empty(&local->roc_list) || local->scanning) {
3412 err = -EBUSY;
3413 goto out_unlock;
3414 }
3415
3416 /* whatever, but channel contexts should not complain about that one */
3417 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
3418 sdata->deflink.needed_rx_chains = local->rx_chains;
3419
3420 err = ieee80211_link_use_channel(&sdata->deflink, chandef,
3421 IEEE80211_CHANCTX_SHARED);
3422 if (err)
3423 goto out_unlock;
3424
3425 ieee80211_queue_delayed_work(&sdata->local->hw,
3426 &sdata->deflink.dfs_cac_timer_work,
3427 msecs_to_jiffies(cac_time_ms));
3428
3429 out_unlock:
3430 mutex_unlock(&local->mtx);
3431 return err;
3432 }
3433
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev)3434 static void ieee80211_end_cac(struct wiphy *wiphy,
3435 struct net_device *dev)
3436 {
3437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3438 struct ieee80211_local *local = sdata->local;
3439
3440 mutex_lock(&local->mtx);
3441 list_for_each_entry(sdata, &local->interfaces, list) {
3442 /* it might be waiting for the local->mtx, but then
3443 * by the time it gets it, sdata->wdev.cac_started
3444 * will no longer be true
3445 */
3446 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work);
3447
3448 if (sdata->wdev.cac_started) {
3449 ieee80211_link_release_channel(&sdata->deflink);
3450 sdata->wdev.cac_started = false;
3451 }
3452 }
3453 mutex_unlock(&local->mtx);
3454 }
3455
3456 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3457 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3458 {
3459 struct cfg80211_beacon_data *new_beacon;
3460 u8 *pos;
3461 int len;
3462
3463 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3464 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3465 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3466
3467 if (beacon->mbssid_ies)
3468 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
3469 beacon->rnr_ies,
3470 beacon->mbssid_ies->cnt);
3471
3472 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3473 if (!new_beacon)
3474 return NULL;
3475
3476 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3477 new_beacon->mbssid_ies =
3478 kzalloc(struct_size(new_beacon->mbssid_ies,
3479 elem, beacon->mbssid_ies->cnt),
3480 GFP_KERNEL);
3481 if (!new_beacon->mbssid_ies) {
3482 kfree(new_beacon);
3483 return NULL;
3484 }
3485
3486 if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
3487 new_beacon->rnr_ies =
3488 kzalloc(struct_size(new_beacon->rnr_ies,
3489 elem, beacon->rnr_ies->cnt),
3490 GFP_KERNEL);
3491 if (!new_beacon->rnr_ies) {
3492 kfree(new_beacon->mbssid_ies);
3493 kfree(new_beacon);
3494 return NULL;
3495 }
3496 }
3497 }
3498
3499 pos = (u8 *)(new_beacon + 1);
3500 if (beacon->head_len) {
3501 new_beacon->head_len = beacon->head_len;
3502 new_beacon->head = pos;
3503 memcpy(pos, beacon->head, beacon->head_len);
3504 pos += beacon->head_len;
3505 }
3506 if (beacon->tail_len) {
3507 new_beacon->tail_len = beacon->tail_len;
3508 new_beacon->tail = pos;
3509 memcpy(pos, beacon->tail, beacon->tail_len);
3510 pos += beacon->tail_len;
3511 }
3512 if (beacon->beacon_ies_len) {
3513 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3514 new_beacon->beacon_ies = pos;
3515 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3516 pos += beacon->beacon_ies_len;
3517 }
3518 if (beacon->proberesp_ies_len) {
3519 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3520 new_beacon->proberesp_ies = pos;
3521 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3522 pos += beacon->proberesp_ies_len;
3523 }
3524 if (beacon->assocresp_ies_len) {
3525 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3526 new_beacon->assocresp_ies = pos;
3527 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3528 pos += beacon->assocresp_ies_len;
3529 }
3530 if (beacon->probe_resp_len) {
3531 new_beacon->probe_resp_len = beacon->probe_resp_len;
3532 new_beacon->probe_resp = pos;
3533 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3534 pos += beacon->probe_resp_len;
3535 }
3536 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3537 pos += ieee80211_copy_mbssid_beacon(pos,
3538 new_beacon->mbssid_ies,
3539 beacon->mbssid_ies);
3540 if (beacon->rnr_ies && beacon->rnr_ies->cnt)
3541 pos += ieee80211_copy_rnr_beacon(pos,
3542 new_beacon->rnr_ies,
3543 beacon->rnr_ies);
3544 }
3545
3546 /* might copy -1, meaning no changes requested */
3547 new_beacon->ftm_responder = beacon->ftm_responder;
3548 if (beacon->lci) {
3549 new_beacon->lci_len = beacon->lci_len;
3550 new_beacon->lci = pos;
3551 memcpy(pos, beacon->lci, beacon->lci_len);
3552 pos += beacon->lci_len;
3553 }
3554 if (beacon->civicloc) {
3555 new_beacon->civicloc_len = beacon->civicloc_len;
3556 new_beacon->civicloc = pos;
3557 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3558 pos += beacon->civicloc_len;
3559 }
3560
3561 return new_beacon;
3562 }
3563
ieee80211_csa_finish(struct ieee80211_vif * vif)3564 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3565 {
3566 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3567 struct ieee80211_local *local = sdata->local;
3568
3569 rcu_read_lock();
3570
3571 if (vif->mbssid_tx_vif == vif) {
3572 /* Trigger ieee80211_csa_finish() on the non-transmitting
3573 * interfaces when channel switch is received on
3574 * transmitting interface
3575 */
3576 struct ieee80211_sub_if_data *iter;
3577
3578 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3579 if (!ieee80211_sdata_running(iter))
3580 continue;
3581
3582 if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3583 continue;
3584
3585 ieee80211_queue_work(&iter->local->hw,
3586 &iter->deflink.csa_finalize_work);
3587 }
3588 }
3589 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work);
3590
3591 rcu_read_unlock();
3592 }
3593 EXPORT_SYMBOL(ieee80211_csa_finish);
3594
ieee80211_channel_switch_disconnect(struct ieee80211_vif * vif,bool block_tx)3595 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3596 {
3597 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3598 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3599 struct ieee80211_local *local = sdata->local;
3600
3601 sdata->deflink.csa_block_tx = block_tx;
3602 sdata_info(sdata, "channel switch failed, disconnecting\n");
3603 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work);
3604 }
3605 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3606
ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u64 * changed)3607 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3608 u64 *changed)
3609 {
3610 int err;
3611
3612 switch (sdata->vif.type) {
3613 case NL80211_IFTYPE_AP:
3614 if (!sdata->deflink.u.ap.next_beacon)
3615 return -EINVAL;
3616
3617 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3618 sdata->deflink.u.ap.next_beacon,
3619 NULL, NULL, changed);
3620 ieee80211_free_next_beacon(&sdata->deflink);
3621
3622 if (err < 0)
3623 return err;
3624 break;
3625 case NL80211_IFTYPE_ADHOC:
3626 err = ieee80211_ibss_finish_csa(sdata, changed);
3627 if (err < 0)
3628 return err;
3629 break;
3630 #ifdef CONFIG_MAC80211_MESH
3631 case NL80211_IFTYPE_MESH_POINT:
3632 err = ieee80211_mesh_finish_csa(sdata, changed);
3633 if (err < 0)
3634 return err;
3635 break;
3636 #endif
3637 default:
3638 WARN_ON(1);
3639 return -EINVAL;
3640 }
3641
3642 return 0;
3643 }
3644
__ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3645 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3646 {
3647 struct ieee80211_local *local = sdata->local;
3648 u64 changed = 0;
3649 int err;
3650
3651 sdata_assert_lock(sdata);
3652 lockdep_assert_held(&local->mtx);
3653 lockdep_assert_held(&local->chanctx_mtx);
3654
3655 /*
3656 * using reservation isn't immediate as it may be deferred until later
3657 * with multi-vif. once reservation is complete it will re-schedule the
3658 * work with no reserved_chanctx so verify chandef to check if it
3659 * completed successfully
3660 */
3661
3662 if (sdata->deflink.reserved_chanctx) {
3663 /*
3664 * with multi-vif csa driver may call ieee80211_csa_finish()
3665 * many times while waiting for other interfaces to use their
3666 * reservations
3667 */
3668 if (sdata->deflink.reserved_ready)
3669 return 0;
3670
3671 return ieee80211_link_use_reserved_context(&sdata->deflink);
3672 }
3673
3674 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3675 &sdata->deflink.csa_chandef))
3676 return -EINVAL;
3677
3678 sdata->vif.bss_conf.csa_active = false;
3679
3680 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3681 if (err)
3682 return err;
3683
3684 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) {
3685 sdata->vif.bss_conf.eht_puncturing =
3686 sdata->vif.bss_conf.csa_punct_bitmap;
3687 changed |= BSS_CHANGED_EHT_PUNCTURING;
3688 }
3689
3690 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
3691
3692 if (sdata->deflink.csa_block_tx) {
3693 ieee80211_wake_vif_queues(local, sdata,
3694 IEEE80211_QUEUE_STOP_REASON_CSA);
3695 sdata->deflink.csa_block_tx = false;
3696 }
3697
3698 err = drv_post_channel_switch(sdata);
3699 if (err)
3700 return err;
3701
3702 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0,
3703 sdata->vif.bss_conf.eht_puncturing);
3704
3705 return 0;
3706 }
3707
ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3708 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3709 {
3710 if (__ieee80211_csa_finalize(sdata)) {
3711 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3712 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3713 GFP_KERNEL);
3714 }
3715 }
3716
ieee80211_csa_finalize_work(struct work_struct * work)3717 void ieee80211_csa_finalize_work(struct work_struct *work)
3718 {
3719 struct ieee80211_sub_if_data *sdata =
3720 container_of(work, struct ieee80211_sub_if_data,
3721 deflink.csa_finalize_work);
3722 struct ieee80211_local *local = sdata->local;
3723
3724 sdata_lock(sdata);
3725 mutex_lock(&local->mtx);
3726 mutex_lock(&local->chanctx_mtx);
3727
3728 /* AP might have been stopped while waiting for the lock. */
3729 if (!sdata->vif.bss_conf.csa_active)
3730 goto unlock;
3731
3732 if (!ieee80211_sdata_running(sdata))
3733 goto unlock;
3734
3735 ieee80211_csa_finalize(sdata);
3736
3737 unlock:
3738 mutex_unlock(&local->chanctx_mtx);
3739 mutex_unlock(&local->mtx);
3740 sdata_unlock(sdata);
3741 }
3742
ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u64 * changed)3743 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3744 struct cfg80211_csa_settings *params,
3745 u64 *changed)
3746 {
3747 struct ieee80211_csa_settings csa = {};
3748 int err;
3749
3750 switch (sdata->vif.type) {
3751 case NL80211_IFTYPE_AP:
3752 sdata->deflink.u.ap.next_beacon =
3753 cfg80211_beacon_dup(¶ms->beacon_after);
3754 if (!sdata->deflink.u.ap.next_beacon)
3755 return -ENOMEM;
3756
3757 /*
3758 * With a count of 0, we don't have to wait for any
3759 * TBTT before switching, so complete the CSA
3760 * immediately. In theory, with a count == 1 we
3761 * should delay the switch until just before the next
3762 * TBTT, but that would complicate things so we switch
3763 * immediately too. If we would delay the switch
3764 * until the next TBTT, we would have to set the probe
3765 * response here.
3766 *
3767 * TODO: A channel switch with count <= 1 without
3768 * sending a CSA action frame is kind of useless,
3769 * because the clients won't know we're changing
3770 * channels. The action frame must be implemented
3771 * either here or in the userspace.
3772 */
3773 if (params->count <= 1)
3774 break;
3775
3776 if ((params->n_counter_offsets_beacon >
3777 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3778 (params->n_counter_offsets_presp >
3779 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3780 ieee80211_free_next_beacon(&sdata->deflink);
3781 return -EINVAL;
3782 }
3783
3784 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3785 csa.counter_offsets_presp = params->counter_offsets_presp;
3786 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3787 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3788 csa.count = params->count;
3789
3790 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3791 ¶ms->beacon_csa, &csa,
3792 NULL, changed);
3793 if (err < 0) {
3794 ieee80211_free_next_beacon(&sdata->deflink);
3795 return err;
3796 }
3797
3798 break;
3799 case NL80211_IFTYPE_ADHOC:
3800 if (!sdata->vif.cfg.ibss_joined)
3801 return -EINVAL;
3802
3803 if (params->chandef.width != sdata->u.ibss.chandef.width)
3804 return -EINVAL;
3805
3806 switch (params->chandef.width) {
3807 case NL80211_CHAN_WIDTH_40:
3808 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3809 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3810 return -EINVAL;
3811 break;
3812 case NL80211_CHAN_WIDTH_5:
3813 case NL80211_CHAN_WIDTH_10:
3814 case NL80211_CHAN_WIDTH_20_NOHT:
3815 case NL80211_CHAN_WIDTH_20:
3816 break;
3817 default:
3818 return -EINVAL;
3819 }
3820
3821 /* changes into another band are not supported */
3822 if (sdata->u.ibss.chandef.chan->band !=
3823 params->chandef.chan->band)
3824 return -EINVAL;
3825
3826 /* see comments in the NL80211_IFTYPE_AP block */
3827 if (params->count > 1) {
3828 err = ieee80211_ibss_csa_beacon(sdata, params, changed);
3829 if (err < 0)
3830 return err;
3831 }
3832
3833 ieee80211_send_action_csa(sdata, params);
3834
3835 break;
3836 #ifdef CONFIG_MAC80211_MESH
3837 case NL80211_IFTYPE_MESH_POINT: {
3838 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3839
3840 /* changes into another band are not supported */
3841 if (sdata->vif.bss_conf.chandef.chan->band !=
3842 params->chandef.chan->band)
3843 return -EINVAL;
3844
3845 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3846 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3847 if (!ifmsh->pre_value)
3848 ifmsh->pre_value = 1;
3849 else
3850 ifmsh->pre_value++;
3851 }
3852
3853 /* see comments in the NL80211_IFTYPE_AP block */
3854 if (params->count > 1) {
3855 err = ieee80211_mesh_csa_beacon(sdata, params, changed);
3856 if (err < 0) {
3857 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3858 return err;
3859 }
3860 }
3861
3862 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3863 ieee80211_send_action_csa(sdata, params);
3864
3865 break;
3866 }
3867 #endif
3868 default:
3869 return -EOPNOTSUPP;
3870 }
3871
3872 return 0;
3873 }
3874
ieee80211_color_change_abort(struct ieee80211_sub_if_data * sdata)3875 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata)
3876 {
3877 sdata->vif.bss_conf.color_change_active = false;
3878
3879 ieee80211_free_next_beacon(&sdata->deflink);
3880
3881 cfg80211_color_change_aborted_notify(sdata->dev);
3882 }
3883
3884 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3885 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3886 struct cfg80211_csa_settings *params)
3887 {
3888 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3889 struct ieee80211_local *local = sdata->local;
3890 struct ieee80211_channel_switch ch_switch;
3891 struct ieee80211_chanctx_conf *conf;
3892 struct ieee80211_chanctx *chanctx;
3893 u64 changed = 0;
3894 int err;
3895
3896 sdata_assert_lock(sdata);
3897 lockdep_assert_held(&local->mtx);
3898
3899 if (!list_empty(&local->roc_list) || local->scanning)
3900 return -EBUSY;
3901
3902 if (sdata->wdev.cac_started)
3903 return -EBUSY;
3904
3905 if (cfg80211_chandef_identical(¶ms->chandef,
3906 &sdata->vif.bss_conf.chandef))
3907 return -EINVAL;
3908
3909 /* don't allow another channel switch if one is already active. */
3910 if (sdata->vif.bss_conf.csa_active)
3911 return -EBUSY;
3912
3913 mutex_lock(&local->chanctx_mtx);
3914 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
3915 lockdep_is_held(&local->chanctx_mtx));
3916 if (!conf) {
3917 err = -EBUSY;
3918 goto out;
3919 }
3920
3921 if (params->chandef.chan->freq_offset) {
3922 /* this may work, but is untested */
3923 err = -EOPNOTSUPP;
3924 goto out;
3925 }
3926
3927 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3928
3929 ch_switch.timestamp = 0;
3930 ch_switch.device_timestamp = 0;
3931 ch_switch.block_tx = params->block_tx;
3932 ch_switch.chandef = params->chandef;
3933 ch_switch.count = params->count;
3934
3935 err = drv_pre_channel_switch(sdata, &ch_switch);
3936 if (err)
3937 goto out;
3938
3939 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef,
3940 chanctx->mode,
3941 params->radar_required);
3942 if (err)
3943 goto out;
3944
3945 /* if reservation is invalid then this will fail */
3946 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3947 if (err) {
3948 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3949 goto out;
3950 }
3951
3952 /* if there is a color change in progress, abort it */
3953 if (sdata->vif.bss_conf.color_change_active)
3954 ieee80211_color_change_abort(sdata);
3955
3956 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3957 if (err) {
3958 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3959 goto out;
3960 }
3961
3962 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support)
3963 goto out;
3964
3965 sdata->deflink.csa_chandef = params->chandef;
3966 sdata->deflink.csa_block_tx = params->block_tx;
3967 sdata->vif.bss_conf.csa_active = true;
3968 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap;
3969
3970 if (sdata->deflink.csa_block_tx)
3971 ieee80211_stop_vif_queues(local, sdata,
3972 IEEE80211_QUEUE_STOP_REASON_CSA);
3973
3974 cfg80211_ch_switch_started_notify(sdata->dev,
3975 &sdata->deflink.csa_chandef, 0,
3976 params->count, params->block_tx,
3977 sdata->vif.bss_conf.csa_punct_bitmap);
3978
3979 if (changed) {
3980 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3981 changed);
3982 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3983 } else {
3984 /* if the beacon didn't change, we can finalize immediately */
3985 ieee80211_csa_finalize(sdata);
3986 }
3987
3988 out:
3989 mutex_unlock(&local->chanctx_mtx);
3990 return err;
3991 }
3992
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3993 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3994 struct cfg80211_csa_settings *params)
3995 {
3996 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3997 struct ieee80211_local *local = sdata->local;
3998 int err;
3999
4000 mutex_lock(&local->mtx);
4001 err = __ieee80211_channel_switch(wiphy, dev, params);
4002 mutex_unlock(&local->mtx);
4003
4004 return err;
4005 }
4006
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)4007 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
4008 {
4009 lockdep_assert_held(&local->mtx);
4010
4011 local->roc_cookie_counter++;
4012
4013 /* wow, you wrapped 64 bits ... more likely a bug */
4014 if (WARN_ON(local->roc_cookie_counter == 0))
4015 local->roc_cookie_counter++;
4016
4017 return local->roc_cookie_counter;
4018 }
4019
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)4020 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
4021 u64 *cookie, gfp_t gfp)
4022 {
4023 unsigned long spin_flags;
4024 struct sk_buff *ack_skb;
4025 int id;
4026
4027 ack_skb = skb_copy(skb, gfp);
4028 if (!ack_skb)
4029 return -ENOMEM;
4030
4031 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
4032 id = idr_alloc(&local->ack_status_frames, ack_skb,
4033 1, 0x2000, GFP_ATOMIC);
4034 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
4035
4036 if (id < 0) {
4037 kfree_skb(ack_skb);
4038 return -ENOMEM;
4039 }
4040
4041 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
4042
4043 *cookie = ieee80211_mgmt_tx_cookie(local);
4044 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
4045
4046 return 0;
4047 }
4048
4049 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)4050 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
4051 struct wireless_dev *wdev,
4052 struct mgmt_frame_regs *upd)
4053 {
4054 struct ieee80211_local *local = wiphy_priv(wiphy);
4055 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4056 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
4057 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
4058 bool global_change, intf_change;
4059
4060 global_change =
4061 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
4062 (local->rx_mcast_action_reg !=
4063 !!(upd->global_mcast_stypes & action_mask));
4064 local->probe_req_reg = upd->global_stypes & preq_mask;
4065 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
4066
4067 intf_change = (sdata->vif.probe_req_reg !=
4068 !!(upd->interface_stypes & preq_mask)) ||
4069 (sdata->vif.rx_mcast_action_reg !=
4070 !!(upd->interface_mcast_stypes & action_mask));
4071 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
4072 sdata->vif.rx_mcast_action_reg =
4073 upd->interface_mcast_stypes & action_mask;
4074
4075 if (!local->open_count)
4076 return;
4077
4078 if (intf_change && ieee80211_sdata_running(sdata))
4079 drv_config_iface_filter(local, sdata,
4080 sdata->vif.probe_req_reg ?
4081 FIF_PROBE_REQ : 0,
4082 FIF_PROBE_REQ);
4083
4084 if (global_change)
4085 ieee80211_configure_filter(local);
4086 }
4087
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)4088 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
4089 {
4090 struct ieee80211_local *local = wiphy_priv(wiphy);
4091
4092 if (local->started)
4093 return -EOPNOTSUPP;
4094
4095 return drv_set_antenna(local, tx_ant, rx_ant);
4096 }
4097
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)4098 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4099 {
4100 struct ieee80211_local *local = wiphy_priv(wiphy);
4101
4102 return drv_get_antenna(local, tx_ant, rx_ant);
4103 }
4104
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)4105 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4106 struct net_device *dev,
4107 struct cfg80211_gtk_rekey_data *data)
4108 {
4109 struct ieee80211_local *local = wiphy_priv(wiphy);
4110 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4111
4112 if (!local->ops->set_rekey_data)
4113 return -EOPNOTSUPP;
4114
4115 drv_set_rekey_data(local, sdata, data);
4116
4117 return 0;
4118 }
4119
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)4120 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4121 const u8 *peer, u64 *cookie)
4122 {
4123 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4124 struct ieee80211_local *local = sdata->local;
4125 struct ieee80211_qos_hdr *nullfunc;
4126 struct sk_buff *skb;
4127 int size = sizeof(*nullfunc);
4128 __le16 fc;
4129 bool qos;
4130 struct ieee80211_tx_info *info;
4131 struct sta_info *sta;
4132 struct ieee80211_chanctx_conf *chanctx_conf;
4133 enum nl80211_band band;
4134 int ret;
4135
4136 /* the lock is needed to assign the cookie later */
4137 mutex_lock(&local->mtx);
4138
4139 rcu_read_lock();
4140 sta = sta_info_get_bss(sdata, peer);
4141 if (!sta) {
4142 ret = -ENOLINK;
4143 goto unlock;
4144 }
4145
4146 qos = sta->sta.wme;
4147
4148 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4149 if (WARN_ON(!chanctx_conf)) {
4150 ret = -EINVAL;
4151 goto unlock;
4152 }
4153 band = chanctx_conf->def.chan->band;
4154
4155 if (qos) {
4156 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4157 IEEE80211_STYPE_QOS_NULLFUNC |
4158 IEEE80211_FCTL_FROMDS);
4159 } else {
4160 size -= 2;
4161 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4162 IEEE80211_STYPE_NULLFUNC |
4163 IEEE80211_FCTL_FROMDS);
4164 }
4165
4166 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4167 if (!skb) {
4168 ret = -ENOMEM;
4169 goto unlock;
4170 }
4171
4172 skb->dev = dev;
4173
4174 skb_reserve(skb, local->hw.extra_tx_headroom);
4175
4176 nullfunc = skb_put(skb, size);
4177 nullfunc->frame_control = fc;
4178 nullfunc->duration_id = 0;
4179 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4180 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4181 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4182 nullfunc->seq_ctrl = 0;
4183
4184 info = IEEE80211_SKB_CB(skb);
4185
4186 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4187 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4188 info->band = band;
4189
4190 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4191 skb->priority = 7;
4192 if (qos)
4193 nullfunc->qos_ctrl = cpu_to_le16(7);
4194
4195 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4196 if (ret) {
4197 kfree_skb(skb);
4198 goto unlock;
4199 }
4200
4201 local_bh_disable();
4202 ieee80211_xmit(sdata, sta, skb);
4203 local_bh_enable();
4204
4205 ret = 0;
4206 unlock:
4207 rcu_read_unlock();
4208 mutex_unlock(&local->mtx);
4209
4210 return ret;
4211 }
4212
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)4213 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4214 struct wireless_dev *wdev,
4215 unsigned int link_id,
4216 struct cfg80211_chan_def *chandef)
4217 {
4218 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4219 struct ieee80211_local *local = wiphy_priv(wiphy);
4220 struct ieee80211_chanctx_conf *chanctx_conf;
4221 struct ieee80211_link_data *link;
4222 int ret = -ENODATA;
4223
4224 rcu_read_lock();
4225 link = rcu_dereference(sdata->link[link_id]);
4226 if (!link) {
4227 ret = -ENOLINK;
4228 goto out;
4229 }
4230
4231 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4232 if (chanctx_conf) {
4233 *chandef = link->conf->chandef;
4234 ret = 0;
4235 } else if (local->open_count > 0 &&
4236 local->open_count == local->monitors &&
4237 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4238 if (local->use_chanctx)
4239 *chandef = local->monitor_chandef;
4240 else
4241 *chandef = local->_oper_chandef;
4242 ret = 0;
4243 }
4244 out:
4245 rcu_read_unlock();
4246
4247 return ret;
4248 }
4249
4250 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)4251 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4252 {
4253 drv_set_wakeup(wiphy_priv(wiphy), enabled);
4254 }
4255 #endif
4256
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)4257 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4258 struct net_device *dev,
4259 struct cfg80211_qos_map *qos_map)
4260 {
4261 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4262 struct mac80211_qos_map *new_qos_map, *old_qos_map;
4263
4264 if (qos_map) {
4265 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4266 if (!new_qos_map)
4267 return -ENOMEM;
4268 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4269 } else {
4270 /* A NULL qos_map was passed to disable QoS mapping */
4271 new_qos_map = NULL;
4272 }
4273
4274 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4275 rcu_assign_pointer(sdata->qos_map, new_qos_map);
4276 if (old_qos_map)
4277 kfree_rcu(old_qos_map, rcu_head);
4278
4279 return 0;
4280 }
4281
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,struct cfg80211_chan_def * chandef)4282 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4283 struct net_device *dev,
4284 unsigned int link_id,
4285 struct cfg80211_chan_def *chandef)
4286 {
4287 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4288 struct ieee80211_link_data *link;
4289 int ret;
4290 u64 changed = 0;
4291
4292 link = sdata_dereference(sdata->link[link_id], sdata);
4293
4294 ret = ieee80211_link_change_bandwidth(link, chandef, &changed);
4295 if (ret == 0)
4296 ieee80211_link_info_change_notify(sdata, link, changed);
4297
4298 return ret;
4299 }
4300
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)4301 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4302 u8 tsid, const u8 *peer, u8 up,
4303 u16 admitted_time)
4304 {
4305 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4306 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4307 int ac = ieee802_1d_to_ac[up];
4308
4309 if (sdata->vif.type != NL80211_IFTYPE_STATION)
4310 return -EOPNOTSUPP;
4311
4312 if (!(sdata->wmm_acm & BIT(up)))
4313 return -EINVAL;
4314
4315 if (ifmgd->tx_tspec[ac].admitted_time)
4316 return -EBUSY;
4317
4318 if (admitted_time) {
4319 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4320 ifmgd->tx_tspec[ac].tsid = tsid;
4321 ifmgd->tx_tspec[ac].up = up;
4322 }
4323
4324 return 0;
4325 }
4326
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)4327 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4328 u8 tsid, const u8 *peer)
4329 {
4330 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4331 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4332 struct ieee80211_local *local = wiphy_priv(wiphy);
4333 int ac;
4334
4335 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4336 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4337
4338 /* skip unused entries */
4339 if (!tx_tspec->admitted_time)
4340 continue;
4341
4342 if (tx_tspec->tsid != tsid)
4343 continue;
4344
4345 /* due to this new packets will be reassigned to non-ACM ACs */
4346 tx_tspec->up = -1;
4347
4348 /* Make sure that all packets have been sent to avoid to
4349 * restore the QoS params on packets that are still on the
4350 * queues.
4351 */
4352 synchronize_net();
4353 ieee80211_flush_queues(local, sdata, false);
4354
4355 /* restore the normal QoS parameters
4356 * (unconditionally to avoid races)
4357 */
4358 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4359 tx_tspec->downgraded = false;
4360 ieee80211_sta_handle_tspec_ac_params(sdata);
4361
4362 /* finally clear all the data */
4363 memset(tx_tspec, 0, sizeof(*tx_tspec));
4364
4365 return 0;
4366 }
4367
4368 return -ENOENT;
4369 }
4370
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)4371 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4372 u8 inst_id,
4373 enum nl80211_nan_func_term_reason reason,
4374 gfp_t gfp)
4375 {
4376 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4377 struct cfg80211_nan_func *func;
4378 u64 cookie;
4379
4380 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4381 return;
4382
4383 spin_lock_bh(&sdata->u.nan.func_lock);
4384
4385 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4386 if (WARN_ON(!func)) {
4387 spin_unlock_bh(&sdata->u.nan.func_lock);
4388 return;
4389 }
4390
4391 cookie = func->cookie;
4392 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4393
4394 spin_unlock_bh(&sdata->u.nan.func_lock);
4395
4396 cfg80211_free_nan_func(func);
4397
4398 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4399 reason, cookie, gfp);
4400 }
4401 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4402
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)4403 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4404 struct cfg80211_nan_match_params *match,
4405 gfp_t gfp)
4406 {
4407 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4408 struct cfg80211_nan_func *func;
4409
4410 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4411 return;
4412
4413 spin_lock_bh(&sdata->u.nan.func_lock);
4414
4415 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
4416 if (WARN_ON(!func)) {
4417 spin_unlock_bh(&sdata->u.nan.func_lock);
4418 return;
4419 }
4420 match->cookie = func->cookie;
4421
4422 spin_unlock_bh(&sdata->u.nan.func_lock);
4423
4424 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4425 }
4426 EXPORT_SYMBOL(ieee80211_nan_func_match);
4427
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)4428 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4429 struct net_device *dev,
4430 const bool enabled)
4431 {
4432 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4433
4434 sdata->u.ap.multicast_to_unicast = enabled;
4435
4436 return 0;
4437 }
4438
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)4439 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4440 struct txq_info *txqi)
4441 {
4442 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4443 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4444 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4445 }
4446
4447 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4448 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4449 txqstats->backlog_packets = txqi->tin.backlog_packets;
4450 }
4451
4452 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4453 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4454 txqstats->flows = txqi->tin.flows;
4455 }
4456
4457 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4458 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4459 txqstats->drops = txqi->cstats.drop_count;
4460 }
4461
4462 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4463 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4464 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4465 }
4466
4467 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4468 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4469 txqstats->overlimit = txqi->tin.overlimit;
4470 }
4471
4472 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4473 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4474 txqstats->collisions = txqi->tin.collisions;
4475 }
4476
4477 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4478 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4479 txqstats->tx_bytes = txqi->tin.tx_bytes;
4480 }
4481
4482 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4483 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4484 txqstats->tx_packets = txqi->tin.tx_packets;
4485 }
4486 }
4487
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)4488 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4489 struct wireless_dev *wdev,
4490 struct cfg80211_txq_stats *txqstats)
4491 {
4492 struct ieee80211_local *local = wiphy_priv(wiphy);
4493 struct ieee80211_sub_if_data *sdata;
4494 int ret = 0;
4495
4496 spin_lock_bh(&local->fq.lock);
4497 rcu_read_lock();
4498
4499 if (wdev) {
4500 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4501 if (!sdata->vif.txq) {
4502 ret = 1;
4503 goto out;
4504 }
4505 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4506 } else {
4507 /* phy stats */
4508 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4509 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4510 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4511 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4512 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4513 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4514 txqstats->backlog_packets = local->fq.backlog;
4515 txqstats->backlog_bytes = local->fq.memory_usage;
4516 txqstats->overlimit = local->fq.overlimit;
4517 txqstats->overmemory = local->fq.overmemory;
4518 txqstats->collisions = local->fq.collisions;
4519 txqstats->max_flows = local->fq.flows_cnt;
4520 }
4521
4522 out:
4523 rcu_read_unlock();
4524 spin_unlock_bh(&local->fq.lock);
4525
4526 return ret;
4527 }
4528
4529 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4530 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4531 struct net_device *dev,
4532 struct cfg80211_ftm_responder_stats *ftm_stats)
4533 {
4534 struct ieee80211_local *local = wiphy_priv(wiphy);
4535 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4536
4537 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4538 }
4539
4540 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4541 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4542 struct cfg80211_pmsr_request *request)
4543 {
4544 struct ieee80211_local *local = wiphy_priv(wiphy);
4545 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4546
4547 return drv_start_pmsr(local, sdata, request);
4548 }
4549
4550 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4551 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4552 struct cfg80211_pmsr_request *request)
4553 {
4554 struct ieee80211_local *local = wiphy_priv(wiphy);
4555 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4556
4557 return drv_abort_pmsr(local, sdata, request);
4558 }
4559
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4560 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4561 struct net_device *dev,
4562 struct cfg80211_tid_config *tid_conf)
4563 {
4564 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4565 struct sta_info *sta;
4566 int ret;
4567
4568 if (!sdata->local->ops->set_tid_config)
4569 return -EOPNOTSUPP;
4570
4571 if (!tid_conf->peer)
4572 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4573
4574 mutex_lock(&sdata->local->sta_mtx);
4575 sta = sta_info_get_bss(sdata, tid_conf->peer);
4576 if (!sta) {
4577 mutex_unlock(&sdata->local->sta_mtx);
4578 return -ENOENT;
4579 }
4580
4581 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4582 mutex_unlock(&sdata->local->sta_mtx);
4583
4584 return ret;
4585 }
4586
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4587 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4588 struct net_device *dev,
4589 const u8 *peer, u8 tids)
4590 {
4591 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4592 struct sta_info *sta;
4593 int ret;
4594
4595 if (!sdata->local->ops->reset_tid_config)
4596 return -EOPNOTSUPP;
4597
4598 if (!peer)
4599 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4600
4601 mutex_lock(&sdata->local->sta_mtx);
4602 sta = sta_info_get_bss(sdata, peer);
4603 if (!sta) {
4604 mutex_unlock(&sdata->local->sta_mtx);
4605 return -ENOENT;
4606 }
4607
4608 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4609 mutex_unlock(&sdata->local->sta_mtx);
4610
4611 return ret;
4612 }
4613
ieee80211_set_sar_specs(struct wiphy * wiphy,struct cfg80211_sar_specs * sar)4614 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4615 struct cfg80211_sar_specs *sar)
4616 {
4617 struct ieee80211_local *local = wiphy_priv(wiphy);
4618
4619 if (!local->ops->set_sar_specs)
4620 return -EOPNOTSUPP;
4621
4622 return local->ops->set_sar_specs(&local->hw, sar);
4623 }
4624
4625 static int
ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data * sdata,u64 * changed)4626 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4627 u64 *changed)
4628 {
4629 switch (sdata->vif.type) {
4630 case NL80211_IFTYPE_AP: {
4631 int ret;
4632
4633 if (!sdata->deflink.u.ap.next_beacon)
4634 return -EINVAL;
4635
4636 ret = ieee80211_assign_beacon(sdata, &sdata->deflink,
4637 sdata->deflink.u.ap.next_beacon,
4638 NULL, NULL, changed);
4639 ieee80211_free_next_beacon(&sdata->deflink);
4640
4641 if (ret < 0)
4642 return ret;
4643
4644 break;
4645 }
4646 default:
4647 WARN_ON_ONCE(1);
4648 return -EINVAL;
4649 }
4650
4651 return 0;
4652 }
4653
4654 static int
ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_color_change_settings * params,u64 * changed)4655 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4656 struct cfg80211_color_change_settings *params,
4657 u64 *changed)
4658 {
4659 struct ieee80211_color_change_settings color_change = {};
4660 int err;
4661
4662 switch (sdata->vif.type) {
4663 case NL80211_IFTYPE_AP:
4664 sdata->deflink.u.ap.next_beacon =
4665 cfg80211_beacon_dup(¶ms->beacon_next);
4666 if (!sdata->deflink.u.ap.next_beacon)
4667 return -ENOMEM;
4668
4669 if (params->count <= 1)
4670 break;
4671
4672 color_change.counter_offset_beacon =
4673 params->counter_offset_beacon;
4674 color_change.counter_offset_presp =
4675 params->counter_offset_presp;
4676 color_change.count = params->count;
4677
4678 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
4679 ¶ms->beacon_color_change,
4680 NULL, &color_change, changed);
4681 if (err < 0) {
4682 ieee80211_free_next_beacon(&sdata->deflink);
4683 return err;
4684 }
4685 break;
4686 default:
4687 return -EOPNOTSUPP;
4688 }
4689
4690 return 0;
4691 }
4692
4693 static void
ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data * sdata,u8 color,int enable,u64 changed)4694 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4695 u8 color, int enable, u64 changed)
4696 {
4697 sdata->vif.bss_conf.he_bss_color.color = color;
4698 sdata->vif.bss_conf.he_bss_color.enabled = enable;
4699 changed |= BSS_CHANGED_HE_BSS_COLOR;
4700
4701 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
4702
4703 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4704 struct ieee80211_sub_if_data *child;
4705
4706 mutex_lock(&sdata->local->iflist_mtx);
4707 list_for_each_entry(child, &sdata->local->interfaces, list) {
4708 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4709 child->vif.bss_conf.he_bss_color.color = color;
4710 child->vif.bss_conf.he_bss_color.enabled = enable;
4711 ieee80211_link_info_change_notify(child,
4712 &child->deflink,
4713 BSS_CHANGED_HE_BSS_COLOR);
4714 }
4715 }
4716 mutex_unlock(&sdata->local->iflist_mtx);
4717 }
4718 }
4719
ieee80211_color_change_finalize(struct ieee80211_sub_if_data * sdata)4720 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4721 {
4722 struct ieee80211_local *local = sdata->local;
4723 u64 changed = 0;
4724 int err;
4725
4726 sdata_assert_lock(sdata);
4727 lockdep_assert_held(&local->mtx);
4728
4729 sdata->vif.bss_conf.color_change_active = false;
4730
4731 err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4732 if (err) {
4733 cfg80211_color_change_aborted_notify(sdata->dev);
4734 return err;
4735 }
4736
4737 ieee80211_color_change_bss_config_notify(sdata,
4738 sdata->vif.bss_conf.color_change_color,
4739 1, changed);
4740 cfg80211_color_change_notify(sdata->dev);
4741
4742 return 0;
4743 }
4744
ieee80211_color_change_finalize_work(struct work_struct * work)4745 void ieee80211_color_change_finalize_work(struct work_struct *work)
4746 {
4747 struct ieee80211_sub_if_data *sdata =
4748 container_of(work, struct ieee80211_sub_if_data,
4749 deflink.color_change_finalize_work);
4750 struct ieee80211_local *local = sdata->local;
4751
4752 sdata_lock(sdata);
4753 mutex_lock(&local->mtx);
4754
4755 /* AP might have been stopped while waiting for the lock. */
4756 if (!sdata->vif.bss_conf.color_change_active)
4757 goto unlock;
4758
4759 if (!ieee80211_sdata_running(sdata))
4760 goto unlock;
4761
4762 ieee80211_color_change_finalize(sdata);
4763
4764 unlock:
4765 mutex_unlock(&local->mtx);
4766 sdata_unlock(sdata);
4767 }
4768
ieee80211_color_collision_detection_work(struct work_struct * work)4769 void ieee80211_color_collision_detection_work(struct work_struct *work)
4770 {
4771 struct delayed_work *delayed_work = to_delayed_work(work);
4772 struct ieee80211_link_data *link =
4773 container_of(delayed_work, struct ieee80211_link_data,
4774 color_collision_detect_work);
4775 struct ieee80211_sub_if_data *sdata = link->sdata;
4776
4777 sdata_lock(sdata);
4778 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap);
4779 sdata_unlock(sdata);
4780 }
4781
ieee80211_color_change_finish(struct ieee80211_vif * vif)4782 void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4783 {
4784 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4785
4786 ieee80211_queue_work(&sdata->local->hw,
4787 &sdata->deflink.color_change_finalize_work);
4788 }
4789 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4790
4791 void
ieee80211_obss_color_collision_notify(struct ieee80211_vif * vif,u64 color_bitmap,gfp_t gfp)4792 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4793 u64 color_bitmap, gfp_t gfp)
4794 {
4795 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4796 struct ieee80211_link_data *link = &sdata->deflink;
4797
4798 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
4799 return;
4800
4801 if (delayed_work_pending(&link->color_collision_detect_work))
4802 return;
4803
4804 link->color_bitmap = color_bitmap;
4805 /* queue the color collision detection event every 500 ms in order to
4806 * avoid sending too much netlink messages to userspace.
4807 */
4808 ieee80211_queue_delayed_work(&sdata->local->hw,
4809 &link->color_collision_detect_work,
4810 msecs_to_jiffies(500));
4811 }
4812 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
4813
4814 static int
ieee80211_color_change(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_color_change_settings * params)4815 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4816 struct cfg80211_color_change_settings *params)
4817 {
4818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4819 struct ieee80211_local *local = sdata->local;
4820 u64 changed = 0;
4821 int err;
4822
4823 sdata_assert_lock(sdata);
4824
4825 if (sdata->vif.bss_conf.nontransmitted)
4826 return -EINVAL;
4827
4828 mutex_lock(&local->mtx);
4829
4830 /* don't allow another color change if one is already active or if csa
4831 * is active
4832 */
4833 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) {
4834 err = -EBUSY;
4835 goto out;
4836 }
4837
4838 err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4839 if (err)
4840 goto out;
4841
4842 sdata->vif.bss_conf.color_change_active = true;
4843 sdata->vif.bss_conf.color_change_color = params->color;
4844
4845 cfg80211_color_change_started_notify(sdata->dev, params->count);
4846
4847 if (changed)
4848 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4849 else
4850 /* if the beacon didn't change, we can finalize immediately */
4851 ieee80211_color_change_finalize(sdata);
4852
4853 out:
4854 mutex_unlock(&local->mtx);
4855
4856 return err;
4857 }
4858
4859 static int
ieee80211_set_radar_background(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)4860 ieee80211_set_radar_background(struct wiphy *wiphy,
4861 struct cfg80211_chan_def *chandef)
4862 {
4863 struct ieee80211_local *local = wiphy_priv(wiphy);
4864
4865 if (!local->ops->set_radar_background)
4866 return -EOPNOTSUPP;
4867
4868 return local->ops->set_radar_background(&local->hw, chandef);
4869 }
4870
ieee80211_add_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)4871 static int ieee80211_add_intf_link(struct wiphy *wiphy,
4872 struct wireless_dev *wdev,
4873 unsigned int link_id)
4874 {
4875 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4876 int res;
4877
4878 if (wdev->use_4addr)
4879 return -EOPNOTSUPP;
4880
4881 mutex_lock(&sdata->local->mtx);
4882 res = ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
4883 mutex_unlock(&sdata->local->mtx);
4884
4885 return res;
4886 }
4887
ieee80211_del_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)4888 static void ieee80211_del_intf_link(struct wiphy *wiphy,
4889 struct wireless_dev *wdev,
4890 unsigned int link_id)
4891 {
4892 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4893
4894 mutex_lock(&sdata->local->mtx);
4895 ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
4896 mutex_unlock(&sdata->local->mtx);
4897 }
4898
sta_add_link_station(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,struct link_station_parameters * params)4899 static int sta_add_link_station(struct ieee80211_local *local,
4900 struct ieee80211_sub_if_data *sdata,
4901 struct link_station_parameters *params)
4902 {
4903 struct sta_info *sta;
4904 int ret;
4905
4906 sta = sta_info_get_bss(sdata, params->mld_mac);
4907 if (!sta)
4908 return -ENOENT;
4909
4910 if (!sta->sta.valid_links)
4911 return -EINVAL;
4912
4913 if (sta->sta.valid_links & BIT(params->link_id))
4914 return -EALREADY;
4915
4916 ret = ieee80211_sta_allocate_link(sta, params->link_id);
4917 if (ret)
4918 return ret;
4919
4920 ret = sta_link_apply_parameters(local, sta, true, params);
4921 if (ret) {
4922 ieee80211_sta_free_link(sta, params->link_id);
4923 return ret;
4924 }
4925
4926 /* ieee80211_sta_activate_link frees the link upon failure */
4927 return ieee80211_sta_activate_link(sta, params->link_id);
4928 }
4929
4930 static int
ieee80211_add_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)4931 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
4932 struct link_station_parameters *params)
4933 {
4934 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4935 struct ieee80211_local *local = wiphy_priv(wiphy);
4936 int ret;
4937
4938 mutex_lock(&sdata->local->sta_mtx);
4939 ret = sta_add_link_station(local, sdata, params);
4940 mutex_unlock(&sdata->local->sta_mtx);
4941
4942 return ret;
4943 }
4944
sta_mod_link_station(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,struct link_station_parameters * params)4945 static int sta_mod_link_station(struct ieee80211_local *local,
4946 struct ieee80211_sub_if_data *sdata,
4947 struct link_station_parameters *params)
4948 {
4949 struct sta_info *sta;
4950
4951 sta = sta_info_get_bss(sdata, params->mld_mac);
4952 if (!sta)
4953 return -ENOENT;
4954
4955 if (!(sta->sta.valid_links & BIT(params->link_id)))
4956 return -EINVAL;
4957
4958 return sta_link_apply_parameters(local, sta, false, params);
4959 }
4960
4961 static int
ieee80211_mod_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)4962 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
4963 struct link_station_parameters *params)
4964 {
4965 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4966 struct ieee80211_local *local = wiphy_priv(wiphy);
4967 int ret;
4968
4969 mutex_lock(&sdata->local->sta_mtx);
4970 ret = sta_mod_link_station(local, sdata, params);
4971 mutex_unlock(&sdata->local->sta_mtx);
4972
4973 return ret;
4974 }
4975
sta_del_link_station(struct ieee80211_sub_if_data * sdata,struct link_station_del_parameters * params)4976 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata,
4977 struct link_station_del_parameters *params)
4978 {
4979 struct sta_info *sta;
4980
4981 sta = sta_info_get_bss(sdata, params->mld_mac);
4982 if (!sta)
4983 return -ENOENT;
4984
4985 if (!(sta->sta.valid_links & BIT(params->link_id)))
4986 return -EINVAL;
4987
4988 /* must not create a STA without links */
4989 if (sta->sta.valid_links == BIT(params->link_id))
4990 return -EINVAL;
4991
4992 ieee80211_sta_remove_link(sta, params->link_id);
4993
4994 return 0;
4995 }
4996
4997 static int
ieee80211_del_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_del_parameters * params)4998 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
4999 struct link_station_del_parameters *params)
5000 {
5001 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5002 int ret;
5003
5004 mutex_lock(&sdata->local->sta_mtx);
5005 ret = sta_del_link_station(sdata, params);
5006 mutex_unlock(&sdata->local->sta_mtx);
5007
5008 return ret;
5009 }
5010
ieee80211_set_hw_timestamp(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_set_hw_timestamp * hwts)5011 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
5012 struct net_device *dev,
5013 struct cfg80211_set_hw_timestamp *hwts)
5014 {
5015 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5016 struct ieee80211_local *local = sdata->local;
5017
5018 if (!local->ops->set_hw_timestamp)
5019 return -EOPNOTSUPP;
5020
5021 if (!check_sdata_in_driver(sdata))
5022 return -EIO;
5023
5024 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
5025 }
5026
5027 const struct cfg80211_ops mac80211_config_ops = {
5028 .add_virtual_intf = ieee80211_add_iface,
5029 .del_virtual_intf = ieee80211_del_iface,
5030 .change_virtual_intf = ieee80211_change_iface,
5031 .start_p2p_device = ieee80211_start_p2p_device,
5032 .stop_p2p_device = ieee80211_stop_p2p_device,
5033 .add_key = ieee80211_add_key,
5034 .del_key = ieee80211_del_key,
5035 .get_key = ieee80211_get_key,
5036 .set_default_key = ieee80211_config_default_key,
5037 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5038 .set_default_beacon_key = ieee80211_config_default_beacon_key,
5039 .start_ap = ieee80211_start_ap,
5040 .change_beacon = ieee80211_change_beacon,
5041 .stop_ap = ieee80211_stop_ap,
5042 .add_station = ieee80211_add_station,
5043 .del_station = ieee80211_del_station,
5044 .change_station = ieee80211_change_station,
5045 .get_station = ieee80211_get_station,
5046 .dump_station = ieee80211_dump_station,
5047 .dump_survey = ieee80211_dump_survey,
5048 #ifdef CONFIG_MAC80211_MESH
5049 .add_mpath = ieee80211_add_mpath,
5050 .del_mpath = ieee80211_del_mpath,
5051 .change_mpath = ieee80211_change_mpath,
5052 .get_mpath = ieee80211_get_mpath,
5053 .dump_mpath = ieee80211_dump_mpath,
5054 .get_mpp = ieee80211_get_mpp,
5055 .dump_mpp = ieee80211_dump_mpp,
5056 .update_mesh_config = ieee80211_update_mesh_config,
5057 .get_mesh_config = ieee80211_get_mesh_config,
5058 .join_mesh = ieee80211_join_mesh,
5059 .leave_mesh = ieee80211_leave_mesh,
5060 #endif
5061 .join_ocb = ieee80211_join_ocb,
5062 .leave_ocb = ieee80211_leave_ocb,
5063 .change_bss = ieee80211_change_bss,
5064 .inform_bss = ieee80211_inform_bss,
5065 .set_txq_params = ieee80211_set_txq_params,
5066 .set_monitor_channel = ieee80211_set_monitor_channel,
5067 .suspend = ieee80211_suspend,
5068 .resume = ieee80211_resume,
5069 .scan = ieee80211_scan,
5070 .abort_scan = ieee80211_abort_scan,
5071 .sched_scan_start = ieee80211_sched_scan_start,
5072 .sched_scan_stop = ieee80211_sched_scan_stop,
5073 .auth = ieee80211_auth,
5074 .assoc = ieee80211_assoc,
5075 .deauth = ieee80211_deauth,
5076 .disassoc = ieee80211_disassoc,
5077 .join_ibss = ieee80211_join_ibss,
5078 .leave_ibss = ieee80211_leave_ibss,
5079 .set_mcast_rate = ieee80211_set_mcast_rate,
5080 .set_wiphy_params = ieee80211_set_wiphy_params,
5081 .set_tx_power = ieee80211_set_tx_power,
5082 .get_tx_power = ieee80211_get_tx_power,
5083 .rfkill_poll = ieee80211_rfkill_poll,
5084 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
5085 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
5086 .set_power_mgmt = ieee80211_set_power_mgmt,
5087 .set_bitrate_mask = ieee80211_set_bitrate_mask,
5088 .remain_on_channel = ieee80211_remain_on_channel,
5089 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
5090 .mgmt_tx = ieee80211_mgmt_tx,
5091 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
5092 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
5093 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
5094 .update_mgmt_frame_registrations =
5095 ieee80211_update_mgmt_frame_registrations,
5096 .set_antenna = ieee80211_set_antenna,
5097 .get_antenna = ieee80211_get_antenna,
5098 .set_rekey_data = ieee80211_set_rekey_data,
5099 .tdls_oper = ieee80211_tdls_oper,
5100 .tdls_mgmt = ieee80211_tdls_mgmt,
5101 .tdls_channel_switch = ieee80211_tdls_channel_switch,
5102 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
5103 .probe_client = ieee80211_probe_client,
5104 .set_noack_map = ieee80211_set_noack_map,
5105 #ifdef CONFIG_PM
5106 .set_wakeup = ieee80211_set_wakeup,
5107 #endif
5108 .get_channel = ieee80211_cfg_get_channel,
5109 .start_radar_detection = ieee80211_start_radar_detection,
5110 .end_cac = ieee80211_end_cac,
5111 .channel_switch = ieee80211_channel_switch,
5112 .set_qos_map = ieee80211_set_qos_map,
5113 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
5114 .add_tx_ts = ieee80211_add_tx_ts,
5115 .del_tx_ts = ieee80211_del_tx_ts,
5116 .start_nan = ieee80211_start_nan,
5117 .stop_nan = ieee80211_stop_nan,
5118 .nan_change_conf = ieee80211_nan_change_conf,
5119 .add_nan_func = ieee80211_add_nan_func,
5120 .del_nan_func = ieee80211_del_nan_func,
5121 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5122 .tx_control_port = ieee80211_tx_control_port,
5123 .get_txq_stats = ieee80211_get_txq_stats,
5124 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5125 .start_pmsr = ieee80211_start_pmsr,
5126 .abort_pmsr = ieee80211_abort_pmsr,
5127 .probe_mesh_link = ieee80211_probe_mesh_link,
5128 .set_tid_config = ieee80211_set_tid_config,
5129 .reset_tid_config = ieee80211_reset_tid_config,
5130 .set_sar_specs = ieee80211_set_sar_specs,
5131 .color_change = ieee80211_color_change,
5132 .set_radar_background = ieee80211_set_radar_background,
5133 .add_intf_link = ieee80211_add_intf_link,
5134 .del_intf_link = ieee80211_del_intf_link,
5135 .add_link_station = ieee80211_add_link_station,
5136 .mod_link_station = ieee80211_mod_link_station,
5137 .del_link_station = ieee80211_del_link_station,
5138 .set_hw_timestamp = ieee80211_set_hw_timestamp,
5139 };
5140
