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 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 ieee80211_sta_set_rx_nss(link_sta);
1891
1892 return ret;
1893 }
1894
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1895 static int sta_apply_parameters(struct ieee80211_local *local,
1896 struct sta_info *sta,
1897 struct station_parameters *params)
1898 {
1899 struct ieee80211_sub_if_data *sdata = sta->sdata;
1900 u32 mask, set;
1901 int ret = 0;
1902
1903 mask = params->sta_flags_mask;
1904 set = params->sta_flags_set;
1905
1906 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1907 /*
1908 * In mesh mode, ASSOCIATED isn't part of the nl80211
1909 * API but must follow AUTHENTICATED for driver state.
1910 */
1911 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1912 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1913 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1914 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1915 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1916 /*
1917 * TDLS -- everything follows authorized, but
1918 * only becoming authorized is possible, not
1919 * going back
1920 */
1921 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1922 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1923 BIT(NL80211_STA_FLAG_ASSOCIATED);
1924 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1925 BIT(NL80211_STA_FLAG_ASSOCIATED);
1926 }
1927 }
1928
1929 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1930 local->hw.queues >= IEEE80211_NUM_ACS)
1931 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1932
1933 /* auth flags will be set later for TDLS,
1934 * and for unassociated stations that move to associated */
1935 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1936 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1937 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1938 ret = sta_apply_auth_flags(local, sta, mask, set);
1939 if (ret)
1940 return ret;
1941 }
1942
1943 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1944 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1945 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1946 else
1947 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1948 }
1949
1950 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1951 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1952 if (set & BIT(NL80211_STA_FLAG_MFP))
1953 set_sta_flag(sta, WLAN_STA_MFP);
1954 else
1955 clear_sta_flag(sta, WLAN_STA_MFP);
1956 }
1957
1958 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1959 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1960 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1961 else
1962 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1963 }
1964
1965 /* mark TDLS channel switch support, if the AP allows it */
1966 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1967 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
1968 params->ext_capab_len >= 4 &&
1969 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1970 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1971
1972 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1973 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1974 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1975 params->ext_capab_len >= 8 &&
1976 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1977 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1978
1979 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1980 sta->sta.uapsd_queues = params->uapsd_queues;
1981 sta->sta.max_sp = params->max_sp;
1982 }
1983
1984 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
1985 params->ext_capab_len);
1986
1987 /*
1988 * cfg80211 validates this (1-2007) and allows setting the AID
1989 * only when creating a new station entry
1990 */
1991 if (params->aid)
1992 sta->sta.aid = params->aid;
1993
1994 /*
1995 * Some of the following updates would be racy if called on an
1996 * existing station, via ieee80211_change_station(). However,
1997 * all such changes are rejected by cfg80211 except for updates
1998 * changing the supported rates on an existing but not yet used
1999 * TDLS peer.
2000 */
2001
2002 if (params->listen_interval >= 0)
2003 sta->listen_interval = params->listen_interval;
2004
2005 ret = sta_link_apply_parameters(local, sta, false,
2006 ¶ms->link_sta_params);
2007 if (ret)
2008 return ret;
2009
2010 if (params->support_p2p_ps >= 0)
2011 sta->sta.support_p2p_ps = params->support_p2p_ps;
2012
2013 if (ieee80211_vif_is_mesh(&sdata->vif))
2014 sta_apply_mesh_params(local, sta, params);
2015
2016 if (params->airtime_weight)
2017 sta->airtime_weight = params->airtime_weight;
2018
2019 /* set the STA state after all sta info from usermode has been set */
2020 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
2021 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
2022 ret = sta_apply_auth_flags(local, sta, mask, set);
2023 if (ret)
2024 return ret;
2025 }
2026
2027 /* Mark the STA as MLO if MLD MAC address is available */
2028 if (params->link_sta_params.mld_mac)
2029 sta->sta.mlo = true;
2030
2031 return 0;
2032 }
2033
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2034 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2035 const u8 *mac,
2036 struct station_parameters *params)
2037 {
2038 struct ieee80211_local *local = wiphy_priv(wiphy);
2039 struct sta_info *sta;
2040 struct ieee80211_sub_if_data *sdata;
2041 int err;
2042
2043 if (params->vlan) {
2044 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2045
2046 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2047 sdata->vif.type != NL80211_IFTYPE_AP)
2048 return -EINVAL;
2049 } else
2050 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2051
2052 if (ether_addr_equal(mac, sdata->vif.addr))
2053 return -EINVAL;
2054
2055 if (!is_valid_ether_addr(mac))
2056 return -EINVAL;
2057
2058 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
2059 sdata->vif.type == NL80211_IFTYPE_STATION &&
2060 !sdata->u.mgd.associated)
2061 return -EINVAL;
2062
2063 /*
2064 * If we have a link ID, it can be a non-MLO station on an AP MLD,
2065 * but we need to have a link_mac in that case as well, so use the
2066 * STA's MAC address in that case.
2067 */
2068 if (params->link_sta_params.link_id >= 0)
2069 sta = sta_info_alloc_with_link(sdata, mac,
2070 params->link_sta_params.link_id,
2071 params->link_sta_params.link_mac ?: mac,
2072 GFP_KERNEL);
2073 else
2074 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
2075
2076 if (!sta)
2077 return -ENOMEM;
2078
2079 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2080 sta->sta.tdls = true;
2081
2082 /* Though the mutex is not needed here (since the station is not
2083 * visible yet), sta_apply_parameters (and inner functions) require
2084 * the mutex due to other paths.
2085 */
2086 mutex_lock(&local->sta_mtx);
2087 err = sta_apply_parameters(local, sta, params);
2088 mutex_unlock(&local->sta_mtx);
2089 if (err) {
2090 sta_info_free(local, sta);
2091 return err;
2092 }
2093
2094 /*
2095 * for TDLS and for unassociated station, rate control should be
2096 * initialized only when rates are known and station is marked
2097 * authorized/associated
2098 */
2099 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2100 test_sta_flag(sta, WLAN_STA_ASSOC))
2101 rate_control_rate_init(sta);
2102
2103 return sta_info_insert(sta);
2104 }
2105
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)2106 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2107 struct station_del_parameters *params)
2108 {
2109 struct ieee80211_sub_if_data *sdata;
2110
2111 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2112
2113 if (params->mac)
2114 return sta_info_destroy_addr_bss(sdata, params->mac);
2115
2116 sta_info_flush(sdata);
2117 return 0;
2118 }
2119
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2120 static int ieee80211_change_station(struct wiphy *wiphy,
2121 struct net_device *dev, const u8 *mac,
2122 struct station_parameters *params)
2123 {
2124 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2125 struct ieee80211_local *local = wiphy_priv(wiphy);
2126 struct sta_info *sta;
2127 struct ieee80211_sub_if_data *vlansdata;
2128 enum cfg80211_station_type statype;
2129 int err;
2130
2131 mutex_lock(&local->sta_mtx);
2132
2133 sta = sta_info_get_bss(sdata, mac);
2134 if (!sta) {
2135 err = -ENOENT;
2136 goto out_err;
2137 }
2138
2139 switch (sdata->vif.type) {
2140 case NL80211_IFTYPE_MESH_POINT:
2141 if (sdata->u.mesh.user_mpm)
2142 statype = CFG80211_STA_MESH_PEER_USER;
2143 else
2144 statype = CFG80211_STA_MESH_PEER_KERNEL;
2145 break;
2146 case NL80211_IFTYPE_ADHOC:
2147 statype = CFG80211_STA_IBSS;
2148 break;
2149 case NL80211_IFTYPE_STATION:
2150 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2151 statype = CFG80211_STA_AP_STA;
2152 break;
2153 }
2154 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2155 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2156 else
2157 statype = CFG80211_STA_TDLS_PEER_SETUP;
2158 break;
2159 case NL80211_IFTYPE_AP:
2160 case NL80211_IFTYPE_AP_VLAN:
2161 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2162 statype = CFG80211_STA_AP_CLIENT;
2163 else
2164 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2165 break;
2166 default:
2167 err = -EOPNOTSUPP;
2168 goto out_err;
2169 }
2170
2171 err = cfg80211_check_station_change(wiphy, params, statype);
2172 if (err)
2173 goto out_err;
2174
2175 if (params->vlan && params->vlan != sta->sdata->dev) {
2176 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2177
2178 if (params->vlan->ieee80211_ptr->use_4addr) {
2179 if (vlansdata->u.vlan.sta) {
2180 err = -EBUSY;
2181 goto out_err;
2182 }
2183
2184 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2185 __ieee80211_check_fast_rx_iface(vlansdata);
2186 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2187 }
2188
2189 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2190 sta->sdata->u.vlan.sta)
2191 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
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_rx(sta);
2198 ieee80211_check_fast_xmit(sta);
2199
2200 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2201 ieee80211_vif_inc_num_mcast(sta->sdata);
2202 cfg80211_send_layer2_update(sta->sdata->dev,
2203 sta->sta.addr);
2204 }
2205 }
2206
2207 /* we use sta_info_get_bss() so this might be different */
2208 if (sdata != sta->sdata) {
2209 mutex_lock_nested(&sta->sdata->wdev.mtx, 1);
2210 err = sta_apply_parameters(local, sta, params);
2211 mutex_unlock(&sta->sdata->wdev.mtx);
2212 } else {
2213 err = sta_apply_parameters(local, sta, params);
2214 }
2215 if (err)
2216 goto out_err;
2217
2218 mutex_unlock(&local->sta_mtx);
2219
2220 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2221 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2222 ieee80211_recalc_ps(local);
2223 ieee80211_recalc_ps_vif(sdata);
2224 }
2225
2226 return 0;
2227 out_err:
2228 mutex_unlock(&local->sta_mtx);
2229 return err;
2230 }
2231
2232 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2233 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2234 const u8 *dst, const u8 *next_hop)
2235 {
2236 struct ieee80211_sub_if_data *sdata;
2237 struct mesh_path *mpath;
2238 struct sta_info *sta;
2239
2240 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2241
2242 rcu_read_lock();
2243 sta = sta_info_get(sdata, next_hop);
2244 if (!sta) {
2245 rcu_read_unlock();
2246 return -ENOENT;
2247 }
2248
2249 mpath = mesh_path_add(sdata, dst);
2250 if (IS_ERR(mpath)) {
2251 rcu_read_unlock();
2252 return PTR_ERR(mpath);
2253 }
2254
2255 mesh_path_fix_nexthop(mpath, sta);
2256
2257 rcu_read_unlock();
2258 return 0;
2259 }
2260
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)2261 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2262 const u8 *dst)
2263 {
2264 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2265
2266 if (dst)
2267 return mesh_path_del(sdata, dst);
2268
2269 mesh_path_flush_by_iface(sdata);
2270 return 0;
2271 }
2272
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2273 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2274 const u8 *dst, const u8 *next_hop)
2275 {
2276 struct ieee80211_sub_if_data *sdata;
2277 struct mesh_path *mpath;
2278 struct sta_info *sta;
2279
2280 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2281
2282 rcu_read_lock();
2283
2284 sta = sta_info_get(sdata, next_hop);
2285 if (!sta) {
2286 rcu_read_unlock();
2287 return -ENOENT;
2288 }
2289
2290 mpath = mesh_path_lookup(sdata, dst);
2291 if (!mpath) {
2292 rcu_read_unlock();
2293 return -ENOENT;
2294 }
2295
2296 mesh_path_fix_nexthop(mpath, sta);
2297
2298 rcu_read_unlock();
2299 return 0;
2300 }
2301
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)2302 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2303 struct mpath_info *pinfo)
2304 {
2305 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2306
2307 if (next_hop_sta)
2308 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2309 else
2310 eth_zero_addr(next_hop);
2311
2312 memset(pinfo, 0, sizeof(*pinfo));
2313
2314 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2315
2316 pinfo->filled = MPATH_INFO_FRAME_QLEN |
2317 MPATH_INFO_SN |
2318 MPATH_INFO_METRIC |
2319 MPATH_INFO_EXPTIME |
2320 MPATH_INFO_DISCOVERY_TIMEOUT |
2321 MPATH_INFO_DISCOVERY_RETRIES |
2322 MPATH_INFO_FLAGS |
2323 MPATH_INFO_HOP_COUNT |
2324 MPATH_INFO_PATH_CHANGE;
2325
2326 pinfo->frame_qlen = mpath->frame_queue.qlen;
2327 pinfo->sn = mpath->sn;
2328 pinfo->metric = mpath->metric;
2329 if (time_before(jiffies, mpath->exp_time))
2330 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2331 pinfo->discovery_timeout =
2332 jiffies_to_msecs(mpath->discovery_timeout);
2333 pinfo->discovery_retries = mpath->discovery_retries;
2334 if (mpath->flags & MESH_PATH_ACTIVE)
2335 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2336 if (mpath->flags & MESH_PATH_RESOLVING)
2337 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2338 if (mpath->flags & MESH_PATH_SN_VALID)
2339 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2340 if (mpath->flags & MESH_PATH_FIXED)
2341 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2342 if (mpath->flags & MESH_PATH_RESOLVED)
2343 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2344 pinfo->hop_count = mpath->hop_count;
2345 pinfo->path_change_count = mpath->path_change_count;
2346 }
2347
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2348 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2349 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2350
2351 {
2352 struct ieee80211_sub_if_data *sdata;
2353 struct mesh_path *mpath;
2354
2355 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2356
2357 rcu_read_lock();
2358 mpath = mesh_path_lookup(sdata, dst);
2359 if (!mpath) {
2360 rcu_read_unlock();
2361 return -ENOENT;
2362 }
2363 memcpy(dst, mpath->dst, ETH_ALEN);
2364 mpath_set_pinfo(mpath, next_hop, pinfo);
2365 rcu_read_unlock();
2366 return 0;
2367 }
2368
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2369 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2370 int idx, u8 *dst, u8 *next_hop,
2371 struct mpath_info *pinfo)
2372 {
2373 struct ieee80211_sub_if_data *sdata;
2374 struct mesh_path *mpath;
2375
2376 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2377
2378 rcu_read_lock();
2379 mpath = mesh_path_lookup_by_idx(sdata, idx);
2380 if (!mpath) {
2381 rcu_read_unlock();
2382 return -ENOENT;
2383 }
2384 memcpy(dst, mpath->dst, ETH_ALEN);
2385 mpath_set_pinfo(mpath, next_hop, pinfo);
2386 rcu_read_unlock();
2387 return 0;
2388 }
2389
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2390 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2391 struct mpath_info *pinfo)
2392 {
2393 memset(pinfo, 0, sizeof(*pinfo));
2394 memcpy(mpp, mpath->mpp, ETH_ALEN);
2395
2396 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2397 }
2398
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2399 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2400 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2401
2402 {
2403 struct ieee80211_sub_if_data *sdata;
2404 struct mesh_path *mpath;
2405
2406 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2407
2408 rcu_read_lock();
2409 mpath = mpp_path_lookup(sdata, dst);
2410 if (!mpath) {
2411 rcu_read_unlock();
2412 return -ENOENT;
2413 }
2414 memcpy(dst, mpath->dst, ETH_ALEN);
2415 mpp_set_pinfo(mpath, mpp, pinfo);
2416 rcu_read_unlock();
2417 return 0;
2418 }
2419
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2420 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2421 int idx, u8 *dst, u8 *mpp,
2422 struct mpath_info *pinfo)
2423 {
2424 struct ieee80211_sub_if_data *sdata;
2425 struct mesh_path *mpath;
2426
2427 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2428
2429 rcu_read_lock();
2430 mpath = mpp_path_lookup_by_idx(sdata, idx);
2431 if (!mpath) {
2432 rcu_read_unlock();
2433 return -ENOENT;
2434 }
2435 memcpy(dst, mpath->dst, ETH_ALEN);
2436 mpp_set_pinfo(mpath, mpp, pinfo);
2437 rcu_read_unlock();
2438 return 0;
2439 }
2440
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2441 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2442 struct net_device *dev,
2443 struct mesh_config *conf)
2444 {
2445 struct ieee80211_sub_if_data *sdata;
2446 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2447
2448 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2449 return 0;
2450 }
2451
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2452 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2453 {
2454 return (mask >> (parm-1)) & 0x1;
2455 }
2456
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2457 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2458 const struct mesh_setup *setup)
2459 {
2460 u8 *new_ie;
2461 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2462 struct ieee80211_sub_if_data, u.mesh);
2463 int i;
2464
2465 /* allocate information elements */
2466 new_ie = NULL;
2467
2468 if (setup->ie_len) {
2469 new_ie = kmemdup(setup->ie, setup->ie_len,
2470 GFP_KERNEL);
2471 if (!new_ie)
2472 return -ENOMEM;
2473 }
2474 ifmsh->ie_len = setup->ie_len;
2475 ifmsh->ie = new_ie;
2476
2477 /* now copy the rest of the setup parameters */
2478 ifmsh->mesh_id_len = setup->mesh_id_len;
2479 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2480 ifmsh->mesh_sp_id = setup->sync_method;
2481 ifmsh->mesh_pp_id = setup->path_sel_proto;
2482 ifmsh->mesh_pm_id = setup->path_metric;
2483 ifmsh->user_mpm = setup->user_mpm;
2484 ifmsh->mesh_auth_id = setup->auth_id;
2485 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2486 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2487 if (setup->is_authenticated)
2488 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2489 if (setup->is_secure)
2490 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2491
2492 /* mcast rate setting in Mesh Node */
2493 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2494 sizeof(setup->mcast_rate));
2495 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2496
2497 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2498 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2499
2500 sdata->beacon_rate_set = false;
2501 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2502 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2503 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2504 sdata->beacon_rateidx_mask[i] =
2505 setup->beacon_rate.control[i].legacy;
2506 if (sdata->beacon_rateidx_mask[i])
2507 sdata->beacon_rate_set = true;
2508 }
2509 }
2510
2511 return 0;
2512 }
2513
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2514 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2515 struct net_device *dev, u32 mask,
2516 const struct mesh_config *nconf)
2517 {
2518 struct mesh_config *conf;
2519 struct ieee80211_sub_if_data *sdata;
2520 struct ieee80211_if_mesh *ifmsh;
2521
2522 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2523 ifmsh = &sdata->u.mesh;
2524
2525 /* Set the config options which we are interested in setting */
2526 conf = &(sdata->u.mesh.mshcfg);
2527 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2528 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2529 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2530 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2531 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2532 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2533 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2534 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2535 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2536 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2537 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2538 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2539 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2540 conf->element_ttl = nconf->element_ttl;
2541 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2542 if (ifmsh->user_mpm)
2543 return -EBUSY;
2544 conf->auto_open_plinks = nconf->auto_open_plinks;
2545 }
2546 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2547 conf->dot11MeshNbrOffsetMaxNeighbor =
2548 nconf->dot11MeshNbrOffsetMaxNeighbor;
2549 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2550 conf->dot11MeshHWMPmaxPREQretries =
2551 nconf->dot11MeshHWMPmaxPREQretries;
2552 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2553 conf->path_refresh_time = nconf->path_refresh_time;
2554 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2555 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2556 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2557 conf->dot11MeshHWMPactivePathTimeout =
2558 nconf->dot11MeshHWMPactivePathTimeout;
2559 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2560 conf->dot11MeshHWMPpreqMinInterval =
2561 nconf->dot11MeshHWMPpreqMinInterval;
2562 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2563 conf->dot11MeshHWMPperrMinInterval =
2564 nconf->dot11MeshHWMPperrMinInterval;
2565 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2566 mask))
2567 conf->dot11MeshHWMPnetDiameterTraversalTime =
2568 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2569 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2570 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2571 ieee80211_mesh_root_setup(ifmsh);
2572 }
2573 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2574 /* our current gate announcement implementation rides on root
2575 * announcements, so require this ifmsh to also be a root node
2576 * */
2577 if (nconf->dot11MeshGateAnnouncementProtocol &&
2578 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2579 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2580 ieee80211_mesh_root_setup(ifmsh);
2581 }
2582 conf->dot11MeshGateAnnouncementProtocol =
2583 nconf->dot11MeshGateAnnouncementProtocol;
2584 }
2585 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2586 conf->dot11MeshHWMPRannInterval =
2587 nconf->dot11MeshHWMPRannInterval;
2588 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2589 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2590 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2591 /* our RSSI threshold implementation is supported only for
2592 * devices that report signal in dBm.
2593 */
2594 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2595 return -ENOTSUPP;
2596 conf->rssi_threshold = nconf->rssi_threshold;
2597 }
2598 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2599 conf->ht_opmode = nconf->ht_opmode;
2600 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2601 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2602 BSS_CHANGED_HT);
2603 }
2604 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2605 conf->dot11MeshHWMPactivePathToRootTimeout =
2606 nconf->dot11MeshHWMPactivePathToRootTimeout;
2607 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2608 conf->dot11MeshHWMProotInterval =
2609 nconf->dot11MeshHWMProotInterval;
2610 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2611 conf->dot11MeshHWMPconfirmationInterval =
2612 nconf->dot11MeshHWMPconfirmationInterval;
2613 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2614 conf->power_mode = nconf->power_mode;
2615 ieee80211_mps_local_status_update(sdata);
2616 }
2617 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2618 conf->dot11MeshAwakeWindowDuration =
2619 nconf->dot11MeshAwakeWindowDuration;
2620 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2621 conf->plink_timeout = nconf->plink_timeout;
2622 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2623 conf->dot11MeshConnectedToMeshGate =
2624 nconf->dot11MeshConnectedToMeshGate;
2625 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2626 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2627 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2628 conf->dot11MeshConnectedToAuthServer =
2629 nconf->dot11MeshConnectedToAuthServer;
2630 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2631 return 0;
2632 }
2633
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2634 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2635 const struct mesh_config *conf,
2636 const struct mesh_setup *setup)
2637 {
2638 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2639 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2640 int err;
2641
2642 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2643 err = copy_mesh_setup(ifmsh, setup);
2644 if (err)
2645 return err;
2646
2647 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2648
2649 /* can mesh use other SMPS modes? */
2650 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2651 sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2652
2653 mutex_lock(&sdata->local->mtx);
2654 err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef,
2655 IEEE80211_CHANCTX_SHARED);
2656 mutex_unlock(&sdata->local->mtx);
2657 if (err)
2658 return err;
2659
2660 return ieee80211_start_mesh(sdata);
2661 }
2662
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2663 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2664 {
2665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2666
2667 ieee80211_stop_mesh(sdata);
2668 mutex_lock(&sdata->local->mtx);
2669 ieee80211_link_release_channel(&sdata->deflink);
2670 kfree(sdata->u.mesh.ie);
2671 mutex_unlock(&sdata->local->mtx);
2672
2673 return 0;
2674 }
2675 #endif
2676
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2677 static int ieee80211_change_bss(struct wiphy *wiphy,
2678 struct net_device *dev,
2679 struct bss_parameters *params)
2680 {
2681 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2682 struct ieee80211_link_data *link;
2683 struct ieee80211_supported_band *sband;
2684 u64 changed = 0;
2685
2686 link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2687 if (IS_ERR(link))
2688 return PTR_ERR(link);
2689
2690 if (!sdata_dereference(link->u.ap.beacon, sdata))
2691 return -ENOENT;
2692
2693 sband = ieee80211_get_link_sband(link);
2694 if (!sband)
2695 return -EINVAL;
2696
2697 if (params->basic_rates) {
2698 if (!ieee80211_parse_bitrates(link->conf->chandef.width,
2699 wiphy->bands[sband->band],
2700 params->basic_rates,
2701 params->basic_rates_len,
2702 &link->conf->basic_rates))
2703 return -EINVAL;
2704 changed |= BSS_CHANGED_BASIC_RATES;
2705 ieee80211_check_rate_mask(link);
2706 }
2707
2708 if (params->use_cts_prot >= 0) {
2709 link->conf->use_cts_prot = params->use_cts_prot;
2710 changed |= BSS_CHANGED_ERP_CTS_PROT;
2711 }
2712 if (params->use_short_preamble >= 0) {
2713 link->conf->use_short_preamble = params->use_short_preamble;
2714 changed |= BSS_CHANGED_ERP_PREAMBLE;
2715 }
2716
2717 if (!link->conf->use_short_slot &&
2718 (sband->band == NL80211_BAND_5GHZ ||
2719 sband->band == NL80211_BAND_6GHZ)) {
2720 link->conf->use_short_slot = true;
2721 changed |= BSS_CHANGED_ERP_SLOT;
2722 }
2723
2724 if (params->use_short_slot_time >= 0) {
2725 link->conf->use_short_slot = params->use_short_slot_time;
2726 changed |= BSS_CHANGED_ERP_SLOT;
2727 }
2728
2729 if (params->ap_isolate >= 0) {
2730 if (params->ap_isolate)
2731 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2732 else
2733 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2734 ieee80211_check_fast_rx_iface(sdata);
2735 }
2736
2737 if (params->ht_opmode >= 0) {
2738 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2739 changed |= BSS_CHANGED_HT;
2740 }
2741
2742 if (params->p2p_ctwindow >= 0) {
2743 link->conf->p2p_noa_attr.oppps_ctwindow &=
2744 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2745 link->conf->p2p_noa_attr.oppps_ctwindow |=
2746 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2747 changed |= BSS_CHANGED_P2P_PS;
2748 }
2749
2750 if (params->p2p_opp_ps > 0) {
2751 link->conf->p2p_noa_attr.oppps_ctwindow |=
2752 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2753 changed |= BSS_CHANGED_P2P_PS;
2754 } else if (params->p2p_opp_ps == 0) {
2755 link->conf->p2p_noa_attr.oppps_ctwindow &=
2756 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2757 changed |= BSS_CHANGED_P2P_PS;
2758 }
2759
2760 ieee80211_link_info_change_notify(sdata, link, changed);
2761
2762 return 0;
2763 }
2764
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2765 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2766 struct net_device *dev,
2767 struct ieee80211_txq_params *params)
2768 {
2769 struct ieee80211_local *local = wiphy_priv(wiphy);
2770 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2771 struct ieee80211_link_data *link =
2772 ieee80211_link_or_deflink(sdata, params->link_id, true);
2773 struct ieee80211_tx_queue_params p;
2774
2775 if (!local->ops->conf_tx)
2776 return -EOPNOTSUPP;
2777
2778 if (local->hw.queues < IEEE80211_NUM_ACS)
2779 return -EOPNOTSUPP;
2780
2781 if (IS_ERR(link))
2782 return PTR_ERR(link);
2783
2784 memset(&p, 0, sizeof(p));
2785 p.aifs = params->aifs;
2786 p.cw_max = params->cwmax;
2787 p.cw_min = params->cwmin;
2788 p.txop = params->txop;
2789
2790 /*
2791 * Setting tx queue params disables u-apsd because it's only
2792 * called in master mode.
2793 */
2794 p.uapsd = false;
2795
2796 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2797
2798 link->tx_conf[params->ac] = p;
2799 if (drv_conf_tx(local, link, params->ac, &p)) {
2800 wiphy_debug(local->hw.wiphy,
2801 "failed to set TX queue parameters for AC %d\n",
2802 params->ac);
2803 return -EINVAL;
2804 }
2805
2806 ieee80211_link_info_change_notify(sdata, link,
2807 BSS_CHANGED_QOS);
2808
2809 return 0;
2810 }
2811
2812 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2813 static int ieee80211_suspend(struct wiphy *wiphy,
2814 struct cfg80211_wowlan *wowlan)
2815 {
2816 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2817 }
2818
ieee80211_resume(struct wiphy * wiphy)2819 static int ieee80211_resume(struct wiphy *wiphy)
2820 {
2821 return __ieee80211_resume(wiphy_priv(wiphy));
2822 }
2823 #else
2824 #define ieee80211_suspend NULL
2825 #define ieee80211_resume NULL
2826 #endif
2827
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2828 static int ieee80211_scan(struct wiphy *wiphy,
2829 struct cfg80211_scan_request *req)
2830 {
2831 struct ieee80211_sub_if_data *sdata;
2832
2833 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2834
2835 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2836 case NL80211_IFTYPE_STATION:
2837 case NL80211_IFTYPE_ADHOC:
2838 case NL80211_IFTYPE_MESH_POINT:
2839 case NL80211_IFTYPE_P2P_CLIENT:
2840 case NL80211_IFTYPE_P2P_DEVICE:
2841 break;
2842 case NL80211_IFTYPE_P2P_GO:
2843 if (sdata->local->ops->hw_scan)
2844 break;
2845 /*
2846 * FIXME: implement NoA while scanning in software,
2847 * for now fall through to allow scanning only when
2848 * beaconing hasn't been configured yet
2849 */
2850 fallthrough;
2851 case NL80211_IFTYPE_AP:
2852 /*
2853 * If the scan has been forced (and the driver supports
2854 * forcing), don't care about being beaconing already.
2855 * This will create problems to the attached stations (e.g. all
2856 * the frames sent while scanning on other channel will be
2857 * lost)
2858 */
2859 if (sdata->deflink.u.ap.beacon &&
2860 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2861 !(req->flags & NL80211_SCAN_FLAG_AP)))
2862 return -EOPNOTSUPP;
2863 break;
2864 case NL80211_IFTYPE_NAN:
2865 default:
2866 return -EOPNOTSUPP;
2867 }
2868
2869 return ieee80211_request_scan(sdata, req);
2870 }
2871
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2872 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2873 {
2874 ieee80211_scan_cancel(wiphy_priv(wiphy));
2875 }
2876
2877 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2878 ieee80211_sched_scan_start(struct wiphy *wiphy,
2879 struct net_device *dev,
2880 struct cfg80211_sched_scan_request *req)
2881 {
2882 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2883
2884 if (!sdata->local->ops->sched_scan_start)
2885 return -EOPNOTSUPP;
2886
2887 return ieee80211_request_sched_scan_start(sdata, req);
2888 }
2889
2890 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2891 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2892 u64 reqid)
2893 {
2894 struct ieee80211_local *local = wiphy_priv(wiphy);
2895
2896 if (!local->ops->sched_scan_stop)
2897 return -EOPNOTSUPP;
2898
2899 return ieee80211_request_sched_scan_stop(local);
2900 }
2901
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2902 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2903 struct cfg80211_auth_request *req)
2904 {
2905 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2906 }
2907
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2908 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2909 struct cfg80211_assoc_request *req)
2910 {
2911 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2912 }
2913
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2914 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2915 struct cfg80211_deauth_request *req)
2916 {
2917 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2918 }
2919
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2920 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2921 struct cfg80211_disassoc_request *req)
2922 {
2923 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2924 }
2925
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2926 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2927 struct cfg80211_ibss_params *params)
2928 {
2929 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2930 }
2931
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2932 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2933 {
2934 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2935 }
2936
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2937 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2938 struct ocb_setup *setup)
2939 {
2940 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2941 }
2942
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2943 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2944 {
2945 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2946 }
2947
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2948 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2949 int rate[NUM_NL80211_BANDS])
2950 {
2951 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2952
2953 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2954 sizeof(int) * NUM_NL80211_BANDS);
2955
2956 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2957 BSS_CHANGED_MCAST_RATE);
2958
2959 return 0;
2960 }
2961
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2962 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2963 {
2964 struct ieee80211_local *local = wiphy_priv(wiphy);
2965 int err;
2966
2967 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2968 ieee80211_check_fast_xmit_all(local);
2969
2970 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2971
2972 if (err) {
2973 ieee80211_check_fast_xmit_all(local);
2974 return err;
2975 }
2976 }
2977
2978 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2979 (changed & WIPHY_PARAM_DYN_ACK)) {
2980 s16 coverage_class;
2981
2982 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2983 wiphy->coverage_class : -1;
2984 err = drv_set_coverage_class(local, coverage_class);
2985
2986 if (err)
2987 return err;
2988 }
2989
2990 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2991 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2992
2993 if (err)
2994 return err;
2995 }
2996
2997 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2998 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2999 return -EINVAL;
3000 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
3001 }
3002 if (changed & WIPHY_PARAM_RETRY_LONG) {
3003 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
3004 return -EINVAL;
3005 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
3006 }
3007 if (changed &
3008 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
3009 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
3010
3011 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
3012 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
3013 WIPHY_PARAM_TXQ_QUANTUM))
3014 ieee80211_txq_set_params(local);
3015
3016 return 0;
3017 }
3018
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)3019 static int ieee80211_set_tx_power(struct wiphy *wiphy,
3020 struct wireless_dev *wdev,
3021 enum nl80211_tx_power_setting type, int mbm)
3022 {
3023 struct ieee80211_local *local = wiphy_priv(wiphy);
3024 struct ieee80211_sub_if_data *sdata;
3025 enum nl80211_tx_power_setting txp_type = type;
3026 bool update_txp_type = false;
3027 bool has_monitor = false;
3028
3029 if (wdev) {
3030 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3031
3032 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3033 sdata = wiphy_dereference(local->hw.wiphy,
3034 local->monitor_sdata);
3035 if (!sdata)
3036 return -EOPNOTSUPP;
3037 }
3038
3039 switch (type) {
3040 case NL80211_TX_POWER_AUTOMATIC:
3041 sdata->deflink.user_power_level =
3042 IEEE80211_UNSET_POWER_LEVEL;
3043 txp_type = NL80211_TX_POWER_LIMITED;
3044 break;
3045 case NL80211_TX_POWER_LIMITED:
3046 case NL80211_TX_POWER_FIXED:
3047 if (mbm < 0 || (mbm % 100))
3048 return -EOPNOTSUPP;
3049 sdata->deflink.user_power_level = MBM_TO_DBM(mbm);
3050 break;
3051 }
3052
3053 if (txp_type != sdata->vif.bss_conf.txpower_type) {
3054 update_txp_type = true;
3055 sdata->vif.bss_conf.txpower_type = txp_type;
3056 }
3057
3058 ieee80211_recalc_txpower(sdata, update_txp_type);
3059
3060 return 0;
3061 }
3062
3063 switch (type) {
3064 case NL80211_TX_POWER_AUTOMATIC:
3065 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
3066 txp_type = NL80211_TX_POWER_LIMITED;
3067 break;
3068 case NL80211_TX_POWER_LIMITED:
3069 case NL80211_TX_POWER_FIXED:
3070 if (mbm < 0 || (mbm % 100))
3071 return -EOPNOTSUPP;
3072 local->user_power_level = MBM_TO_DBM(mbm);
3073 break;
3074 }
3075
3076 mutex_lock(&local->iflist_mtx);
3077 list_for_each_entry(sdata, &local->interfaces, list) {
3078 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3079 has_monitor = true;
3080 continue;
3081 }
3082 sdata->deflink.user_power_level = local->user_power_level;
3083 if (txp_type != sdata->vif.bss_conf.txpower_type)
3084 update_txp_type = true;
3085 sdata->vif.bss_conf.txpower_type = txp_type;
3086 }
3087 list_for_each_entry(sdata, &local->interfaces, list) {
3088 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
3089 continue;
3090 ieee80211_recalc_txpower(sdata, update_txp_type);
3091 }
3092 mutex_unlock(&local->iflist_mtx);
3093
3094 if (has_monitor) {
3095 sdata = wiphy_dereference(local->hw.wiphy,
3096 local->monitor_sdata);
3097 if (sdata) {
3098 sdata->deflink.user_power_level = local->user_power_level;
3099 if (txp_type != sdata->vif.bss_conf.txpower_type)
3100 update_txp_type = true;
3101 sdata->vif.bss_conf.txpower_type = txp_type;
3102
3103 ieee80211_recalc_txpower(sdata, update_txp_type);
3104 }
3105 }
3106
3107 return 0;
3108 }
3109
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)3110 static int ieee80211_get_tx_power(struct wiphy *wiphy,
3111 struct wireless_dev *wdev,
3112 int *dbm)
3113 {
3114 struct ieee80211_local *local = wiphy_priv(wiphy);
3115 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3116
3117 if (local->ops->get_txpower)
3118 return drv_get_txpower(local, sdata, dbm);
3119
3120 if (!local->use_chanctx)
3121 *dbm = local->hw.conf.power_level;
3122 else
3123 *dbm = sdata->vif.bss_conf.txpower;
3124
3125 /* INT_MIN indicates no power level was set yet */
3126 if (*dbm == INT_MIN)
3127 return -EINVAL;
3128
3129 return 0;
3130 }
3131
ieee80211_rfkill_poll(struct wiphy * wiphy)3132 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3133 {
3134 struct ieee80211_local *local = wiphy_priv(wiphy);
3135
3136 drv_rfkill_poll(local);
3137 }
3138
3139 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)3140 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3141 struct wireless_dev *wdev,
3142 void *data, int len)
3143 {
3144 struct ieee80211_local *local = wiphy_priv(wiphy);
3145 struct ieee80211_vif *vif = NULL;
3146
3147 if (!local->ops->testmode_cmd)
3148 return -EOPNOTSUPP;
3149
3150 if (wdev) {
3151 struct ieee80211_sub_if_data *sdata;
3152
3153 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3154 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3155 vif = &sdata->vif;
3156 }
3157
3158 return local->ops->testmode_cmd(&local->hw, vif, data, len);
3159 }
3160
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)3161 static int ieee80211_testmode_dump(struct wiphy *wiphy,
3162 struct sk_buff *skb,
3163 struct netlink_callback *cb,
3164 void *data, int len)
3165 {
3166 struct ieee80211_local *local = wiphy_priv(wiphy);
3167
3168 if (!local->ops->testmode_dump)
3169 return -EOPNOTSUPP;
3170
3171 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3172 }
3173 #endif
3174
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,enum ieee80211_smps_mode smps_mode)3175 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3176 struct ieee80211_link_data *link,
3177 enum ieee80211_smps_mode smps_mode)
3178 {
3179 const u8 *ap;
3180 enum ieee80211_smps_mode old_req;
3181 int err;
3182 struct sta_info *sta;
3183 bool tdls_peer_found = false;
3184
3185 lockdep_assert_held(&sdata->wdev.mtx);
3186
3187 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3188 return -EINVAL;
3189
3190 old_req = link->u.mgd.req_smps;
3191 link->u.mgd.req_smps = smps_mode;
3192
3193 if (old_req == smps_mode &&
3194 smps_mode != IEEE80211_SMPS_AUTOMATIC)
3195 return 0;
3196
3197 /*
3198 * If not associated, or current association is not an HT
3199 * association, there's no need to do anything, just store
3200 * the new value until we associate.
3201 */
3202 if (!sdata->u.mgd.associated ||
3203 link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
3204 return 0;
3205
3206 ap = link->u.mgd.bssid;
3207
3208 rcu_read_lock();
3209 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3210 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3211 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3212 continue;
3213
3214 tdls_peer_found = true;
3215 break;
3216 }
3217 rcu_read_unlock();
3218
3219 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3220 if (tdls_peer_found || !sdata->u.mgd.powersave)
3221 smps_mode = IEEE80211_SMPS_OFF;
3222 else
3223 smps_mode = IEEE80211_SMPS_DYNAMIC;
3224 }
3225
3226 /* send SM PS frame to AP */
3227 err = ieee80211_send_smps_action(sdata, smps_mode,
3228 ap, ap);
3229 if (err)
3230 link->u.mgd.req_smps = old_req;
3231 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3232 ieee80211_teardown_tdls_peers(sdata);
3233
3234 return err;
3235 }
3236
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)3237 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3238 bool enabled, int timeout)
3239 {
3240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3241 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3242 unsigned int link_id;
3243
3244 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3245 return -EOPNOTSUPP;
3246
3247 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3248 return -EOPNOTSUPP;
3249
3250 if (enabled == sdata->u.mgd.powersave &&
3251 timeout == local->dynamic_ps_forced_timeout)
3252 return 0;
3253
3254 sdata->u.mgd.powersave = enabled;
3255 local->dynamic_ps_forced_timeout = timeout;
3256
3257 /* no change, but if automatic follow powersave */
3258 sdata_lock(sdata);
3259 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3260 struct ieee80211_link_data *link;
3261
3262 link = sdata_dereference(sdata->link[link_id], sdata);
3263
3264 if (!link)
3265 continue;
3266 __ieee80211_request_smps_mgd(sdata, link,
3267 link->u.mgd.req_smps);
3268 }
3269 sdata_unlock(sdata);
3270
3271 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3272 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3273
3274 ieee80211_recalc_ps(local);
3275 ieee80211_recalc_ps_vif(sdata);
3276 ieee80211_check_fast_rx_iface(sdata);
3277
3278 return 0;
3279 }
3280
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)3281 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3282 struct net_device *dev,
3283 s32 rssi_thold, u32 rssi_hyst)
3284 {
3285 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3286 struct ieee80211_vif *vif = &sdata->vif;
3287 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3288
3289 if (rssi_thold == bss_conf->cqm_rssi_thold &&
3290 rssi_hyst == bss_conf->cqm_rssi_hyst)
3291 return 0;
3292
3293 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3294 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3295 return -EOPNOTSUPP;
3296
3297 bss_conf->cqm_rssi_thold = rssi_thold;
3298 bss_conf->cqm_rssi_hyst = rssi_hyst;
3299 bss_conf->cqm_rssi_low = 0;
3300 bss_conf->cqm_rssi_high = 0;
3301 sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3302
3303 /* tell the driver upon association, unless already associated */
3304 if (sdata->u.mgd.associated &&
3305 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3306 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3307 BSS_CHANGED_CQM);
3308
3309 return 0;
3310 }
3311
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)3312 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3313 struct net_device *dev,
3314 s32 rssi_low, s32 rssi_high)
3315 {
3316 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3317 struct ieee80211_vif *vif = &sdata->vif;
3318 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3319
3320 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
3321 return -EOPNOTSUPP;
3322
3323 bss_conf->cqm_rssi_low = rssi_low;
3324 bss_conf->cqm_rssi_high = rssi_high;
3325 bss_conf->cqm_rssi_thold = 0;
3326 bss_conf->cqm_rssi_hyst = 0;
3327 sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3328
3329 /* tell the driver upon association, unless already associated */
3330 if (sdata->u.mgd.associated &&
3331 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3332 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3333 BSS_CHANGED_CQM);
3334
3335 return 0;
3336 }
3337
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * addr,const struct cfg80211_bitrate_mask * mask)3338 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3339 struct net_device *dev,
3340 unsigned int link_id,
3341 const u8 *addr,
3342 const struct cfg80211_bitrate_mask *mask)
3343 {
3344 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3345 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3346 int i, ret;
3347
3348 if (!ieee80211_sdata_running(sdata))
3349 return -ENETDOWN;
3350
3351 /*
3352 * If active validate the setting and reject it if it doesn't leave
3353 * at least one basic rate usable, since we really have to be able
3354 * to send something, and if we're an AP we have to be able to do
3355 * so at a basic rate so that all clients can receive it.
3356 */
3357 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3358 sdata->vif.bss_conf.chandef.chan) {
3359 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3360 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
3361
3362 if (!(mask->control[band].legacy & basic_rates))
3363 return -EINVAL;
3364 }
3365
3366 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3367 ret = drv_set_bitrate_mask(local, sdata, mask);
3368 if (ret)
3369 return ret;
3370 }
3371
3372 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3373 struct ieee80211_supported_band *sband = wiphy->bands[i];
3374 int j;
3375
3376 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3377 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3378 sizeof(mask->control[i].ht_mcs));
3379 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3380 mask->control[i].vht_mcs,
3381 sizeof(mask->control[i].vht_mcs));
3382
3383 sdata->rc_has_mcs_mask[i] = false;
3384 sdata->rc_has_vht_mcs_mask[i] = false;
3385 if (!sband)
3386 continue;
3387
3388 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3389 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3390 sdata->rc_has_mcs_mask[i] = true;
3391 break;
3392 }
3393 }
3394
3395 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3396 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3397 sdata->rc_has_vht_mcs_mask[i] = true;
3398 break;
3399 }
3400 }
3401 }
3402
3403 return 0;
3404 }
3405
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3406 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3407 struct net_device *dev,
3408 struct cfg80211_chan_def *chandef,
3409 u32 cac_time_ms)
3410 {
3411 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3412 struct ieee80211_local *local = sdata->local;
3413 int err;
3414
3415 mutex_lock(&local->mtx);
3416 if (!list_empty(&local->roc_list) || local->scanning) {
3417 err = -EBUSY;
3418 goto out_unlock;
3419 }
3420
3421 /* whatever, but channel contexts should not complain about that one */
3422 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
3423 sdata->deflink.needed_rx_chains = local->rx_chains;
3424
3425 err = ieee80211_link_use_channel(&sdata->deflink, chandef,
3426 IEEE80211_CHANCTX_SHARED);
3427 if (err)
3428 goto out_unlock;
3429
3430 ieee80211_queue_delayed_work(&sdata->local->hw,
3431 &sdata->deflink.dfs_cac_timer_work,
3432 msecs_to_jiffies(cac_time_ms));
3433
3434 out_unlock:
3435 mutex_unlock(&local->mtx);
3436 return err;
3437 }
3438
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev)3439 static void ieee80211_end_cac(struct wiphy *wiphy,
3440 struct net_device *dev)
3441 {
3442 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3443 struct ieee80211_local *local = sdata->local;
3444
3445 mutex_lock(&local->mtx);
3446 list_for_each_entry(sdata, &local->interfaces, list) {
3447 /* it might be waiting for the local->mtx, but then
3448 * by the time it gets it, sdata->wdev.cac_started
3449 * will no longer be true
3450 */
3451 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work);
3452
3453 if (sdata->wdev.cac_started) {
3454 ieee80211_link_release_channel(&sdata->deflink);
3455 sdata->wdev.cac_started = false;
3456 }
3457 }
3458 mutex_unlock(&local->mtx);
3459 }
3460
3461 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3462 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3463 {
3464 struct cfg80211_beacon_data *new_beacon;
3465 u8 *pos;
3466 int len;
3467
3468 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3469 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3470 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3471
3472 if (beacon->mbssid_ies)
3473 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
3474 beacon->rnr_ies,
3475 beacon->mbssid_ies->cnt);
3476
3477 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3478 if (!new_beacon)
3479 return NULL;
3480
3481 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3482 new_beacon->mbssid_ies =
3483 kzalloc(struct_size(new_beacon->mbssid_ies,
3484 elem, beacon->mbssid_ies->cnt),
3485 GFP_KERNEL);
3486 if (!new_beacon->mbssid_ies) {
3487 kfree(new_beacon);
3488 return NULL;
3489 }
3490
3491 if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
3492 new_beacon->rnr_ies =
3493 kzalloc(struct_size(new_beacon->rnr_ies,
3494 elem, beacon->rnr_ies->cnt),
3495 GFP_KERNEL);
3496 if (!new_beacon->rnr_ies) {
3497 kfree(new_beacon->mbssid_ies);
3498 kfree(new_beacon);
3499 return NULL;
3500 }
3501 }
3502 }
3503
3504 pos = (u8 *)(new_beacon + 1);
3505 if (beacon->head_len) {
3506 new_beacon->head_len = beacon->head_len;
3507 new_beacon->head = pos;
3508 memcpy(pos, beacon->head, beacon->head_len);
3509 pos += beacon->head_len;
3510 }
3511 if (beacon->tail_len) {
3512 new_beacon->tail_len = beacon->tail_len;
3513 new_beacon->tail = pos;
3514 memcpy(pos, beacon->tail, beacon->tail_len);
3515 pos += beacon->tail_len;
3516 }
3517 if (beacon->beacon_ies_len) {
3518 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3519 new_beacon->beacon_ies = pos;
3520 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3521 pos += beacon->beacon_ies_len;
3522 }
3523 if (beacon->proberesp_ies_len) {
3524 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3525 new_beacon->proberesp_ies = pos;
3526 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3527 pos += beacon->proberesp_ies_len;
3528 }
3529 if (beacon->assocresp_ies_len) {
3530 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3531 new_beacon->assocresp_ies = pos;
3532 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3533 pos += beacon->assocresp_ies_len;
3534 }
3535 if (beacon->probe_resp_len) {
3536 new_beacon->probe_resp_len = beacon->probe_resp_len;
3537 new_beacon->probe_resp = pos;
3538 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3539 pos += beacon->probe_resp_len;
3540 }
3541 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3542 pos += ieee80211_copy_mbssid_beacon(pos,
3543 new_beacon->mbssid_ies,
3544 beacon->mbssid_ies);
3545 if (beacon->rnr_ies && beacon->rnr_ies->cnt)
3546 pos += ieee80211_copy_rnr_beacon(pos,
3547 new_beacon->rnr_ies,
3548 beacon->rnr_ies);
3549 }
3550
3551 /* might copy -1, meaning no changes requested */
3552 new_beacon->ftm_responder = beacon->ftm_responder;
3553 if (beacon->lci) {
3554 new_beacon->lci_len = beacon->lci_len;
3555 new_beacon->lci = pos;
3556 memcpy(pos, beacon->lci, beacon->lci_len);
3557 pos += beacon->lci_len;
3558 }
3559 if (beacon->civicloc) {
3560 new_beacon->civicloc_len = beacon->civicloc_len;
3561 new_beacon->civicloc = pos;
3562 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3563 pos += beacon->civicloc_len;
3564 }
3565
3566 return new_beacon;
3567 }
3568
ieee80211_csa_finish(struct ieee80211_vif * vif)3569 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3570 {
3571 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3572 struct ieee80211_local *local = sdata->local;
3573
3574 rcu_read_lock();
3575
3576 if (vif->mbssid_tx_vif == vif) {
3577 /* Trigger ieee80211_csa_finish() on the non-transmitting
3578 * interfaces when channel switch is received on
3579 * transmitting interface
3580 */
3581 struct ieee80211_sub_if_data *iter;
3582
3583 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3584 if (!ieee80211_sdata_running(iter))
3585 continue;
3586
3587 if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3588 continue;
3589
3590 ieee80211_queue_work(&iter->local->hw,
3591 &iter->deflink.csa_finalize_work);
3592 }
3593 }
3594 ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work);
3595
3596 rcu_read_unlock();
3597 }
3598 EXPORT_SYMBOL(ieee80211_csa_finish);
3599
ieee80211_channel_switch_disconnect(struct ieee80211_vif * vif,bool block_tx)3600 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3601 {
3602 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3603 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3604 struct ieee80211_local *local = sdata->local;
3605
3606 sdata->deflink.csa_block_tx = block_tx;
3607 sdata_info(sdata, "channel switch failed, disconnecting\n");
3608 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work);
3609 }
3610 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3611
ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u64 * changed)3612 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3613 u64 *changed)
3614 {
3615 int err;
3616
3617 switch (sdata->vif.type) {
3618 case NL80211_IFTYPE_AP:
3619 if (!sdata->deflink.u.ap.next_beacon)
3620 return -EINVAL;
3621
3622 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3623 sdata->deflink.u.ap.next_beacon,
3624 NULL, NULL, changed);
3625 ieee80211_free_next_beacon(&sdata->deflink);
3626
3627 if (err < 0)
3628 return err;
3629 break;
3630 case NL80211_IFTYPE_ADHOC:
3631 err = ieee80211_ibss_finish_csa(sdata, changed);
3632 if (err < 0)
3633 return err;
3634 break;
3635 #ifdef CONFIG_MAC80211_MESH
3636 case NL80211_IFTYPE_MESH_POINT:
3637 err = ieee80211_mesh_finish_csa(sdata, changed);
3638 if (err < 0)
3639 return err;
3640 break;
3641 #endif
3642 default:
3643 WARN_ON(1);
3644 return -EINVAL;
3645 }
3646
3647 return 0;
3648 }
3649
__ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3650 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3651 {
3652 struct ieee80211_local *local = sdata->local;
3653 u64 changed = 0;
3654 int err;
3655
3656 sdata_assert_lock(sdata);
3657 lockdep_assert_held(&local->mtx);
3658 lockdep_assert_held(&local->chanctx_mtx);
3659
3660 /*
3661 * using reservation isn't immediate as it may be deferred until later
3662 * with multi-vif. once reservation is complete it will re-schedule the
3663 * work with no reserved_chanctx so verify chandef to check if it
3664 * completed successfully
3665 */
3666
3667 if (sdata->deflink.reserved_chanctx) {
3668 /*
3669 * with multi-vif csa driver may call ieee80211_csa_finish()
3670 * many times while waiting for other interfaces to use their
3671 * reservations
3672 */
3673 if (sdata->deflink.reserved_ready)
3674 return 0;
3675
3676 return ieee80211_link_use_reserved_context(&sdata->deflink);
3677 }
3678
3679 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3680 &sdata->deflink.csa_chandef))
3681 return -EINVAL;
3682
3683 sdata->vif.bss_conf.csa_active = false;
3684
3685 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3686 if (err)
3687 return err;
3688
3689 if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) {
3690 sdata->vif.bss_conf.eht_puncturing =
3691 sdata->vif.bss_conf.csa_punct_bitmap;
3692 changed |= BSS_CHANGED_EHT_PUNCTURING;
3693 }
3694
3695 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
3696
3697 if (sdata->deflink.csa_block_tx) {
3698 ieee80211_wake_vif_queues(local, sdata,
3699 IEEE80211_QUEUE_STOP_REASON_CSA);
3700 sdata->deflink.csa_block_tx = false;
3701 }
3702
3703 err = drv_post_channel_switch(sdata);
3704 if (err)
3705 return err;
3706
3707 cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0,
3708 sdata->vif.bss_conf.eht_puncturing);
3709
3710 return 0;
3711 }
3712
ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3713 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3714 {
3715 if (__ieee80211_csa_finalize(sdata)) {
3716 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3717 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3718 GFP_KERNEL);
3719 }
3720 }
3721
ieee80211_csa_finalize_work(struct work_struct * work)3722 void ieee80211_csa_finalize_work(struct work_struct *work)
3723 {
3724 struct ieee80211_sub_if_data *sdata =
3725 container_of(work, struct ieee80211_sub_if_data,
3726 deflink.csa_finalize_work);
3727 struct ieee80211_local *local = sdata->local;
3728
3729 sdata_lock(sdata);
3730 mutex_lock(&local->mtx);
3731 mutex_lock(&local->chanctx_mtx);
3732
3733 /* AP might have been stopped while waiting for the lock. */
3734 if (!sdata->vif.bss_conf.csa_active)
3735 goto unlock;
3736
3737 if (!ieee80211_sdata_running(sdata))
3738 goto unlock;
3739
3740 ieee80211_csa_finalize(sdata);
3741
3742 unlock:
3743 mutex_unlock(&local->chanctx_mtx);
3744 mutex_unlock(&local->mtx);
3745 sdata_unlock(sdata);
3746 }
3747
ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u64 * changed)3748 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3749 struct cfg80211_csa_settings *params,
3750 u64 *changed)
3751 {
3752 struct ieee80211_csa_settings csa = {};
3753 int err;
3754
3755 switch (sdata->vif.type) {
3756 case NL80211_IFTYPE_AP:
3757 sdata->deflink.u.ap.next_beacon =
3758 cfg80211_beacon_dup(¶ms->beacon_after);
3759 if (!sdata->deflink.u.ap.next_beacon)
3760 return -ENOMEM;
3761
3762 /*
3763 * With a count of 0, we don't have to wait for any
3764 * TBTT before switching, so complete the CSA
3765 * immediately. In theory, with a count == 1 we
3766 * should delay the switch until just before the next
3767 * TBTT, but that would complicate things so we switch
3768 * immediately too. If we would delay the switch
3769 * until the next TBTT, we would have to set the probe
3770 * response here.
3771 *
3772 * TODO: A channel switch with count <= 1 without
3773 * sending a CSA action frame is kind of useless,
3774 * because the clients won't know we're changing
3775 * channels. The action frame must be implemented
3776 * either here or in the userspace.
3777 */
3778 if (params->count <= 1)
3779 break;
3780
3781 if ((params->n_counter_offsets_beacon >
3782 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3783 (params->n_counter_offsets_presp >
3784 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3785 ieee80211_free_next_beacon(&sdata->deflink);
3786 return -EINVAL;
3787 }
3788
3789 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3790 csa.counter_offsets_presp = params->counter_offsets_presp;
3791 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3792 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3793 csa.count = params->count;
3794
3795 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3796 ¶ms->beacon_csa, &csa,
3797 NULL, changed);
3798 if (err < 0) {
3799 ieee80211_free_next_beacon(&sdata->deflink);
3800 return err;
3801 }
3802
3803 break;
3804 case NL80211_IFTYPE_ADHOC:
3805 if (!sdata->vif.cfg.ibss_joined)
3806 return -EINVAL;
3807
3808 if (params->chandef.width != sdata->u.ibss.chandef.width)
3809 return -EINVAL;
3810
3811 switch (params->chandef.width) {
3812 case NL80211_CHAN_WIDTH_40:
3813 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3814 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3815 return -EINVAL;
3816 break;
3817 case NL80211_CHAN_WIDTH_5:
3818 case NL80211_CHAN_WIDTH_10:
3819 case NL80211_CHAN_WIDTH_20_NOHT:
3820 case NL80211_CHAN_WIDTH_20:
3821 break;
3822 default:
3823 return -EINVAL;
3824 }
3825
3826 /* changes into another band are not supported */
3827 if (sdata->u.ibss.chandef.chan->band !=
3828 params->chandef.chan->band)
3829 return -EINVAL;
3830
3831 /* see comments in the NL80211_IFTYPE_AP block */
3832 if (params->count > 1) {
3833 err = ieee80211_ibss_csa_beacon(sdata, params, changed);
3834 if (err < 0)
3835 return err;
3836 }
3837
3838 ieee80211_send_action_csa(sdata, params);
3839
3840 break;
3841 #ifdef CONFIG_MAC80211_MESH
3842 case NL80211_IFTYPE_MESH_POINT: {
3843 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3844
3845 /* changes into another band are not supported */
3846 if (sdata->vif.bss_conf.chandef.chan->band !=
3847 params->chandef.chan->band)
3848 return -EINVAL;
3849
3850 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3851 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3852 if (!ifmsh->pre_value)
3853 ifmsh->pre_value = 1;
3854 else
3855 ifmsh->pre_value++;
3856 }
3857
3858 /* see comments in the NL80211_IFTYPE_AP block */
3859 if (params->count > 1) {
3860 err = ieee80211_mesh_csa_beacon(sdata, params, changed);
3861 if (err < 0) {
3862 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3863 return err;
3864 }
3865 }
3866
3867 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3868 ieee80211_send_action_csa(sdata, params);
3869
3870 break;
3871 }
3872 #endif
3873 default:
3874 return -EOPNOTSUPP;
3875 }
3876
3877 return 0;
3878 }
3879
ieee80211_color_change_abort(struct ieee80211_sub_if_data * sdata)3880 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata)
3881 {
3882 sdata->vif.bss_conf.color_change_active = false;
3883
3884 ieee80211_free_next_beacon(&sdata->deflink);
3885
3886 cfg80211_color_change_aborted_notify(sdata->dev);
3887 }
3888
3889 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3890 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3891 struct cfg80211_csa_settings *params)
3892 {
3893 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3894 struct ieee80211_local *local = sdata->local;
3895 struct ieee80211_channel_switch ch_switch;
3896 struct ieee80211_chanctx_conf *conf;
3897 struct ieee80211_chanctx *chanctx;
3898 u64 changed = 0;
3899 int err;
3900
3901 sdata_assert_lock(sdata);
3902 lockdep_assert_held(&local->mtx);
3903
3904 if (!list_empty(&local->roc_list) || local->scanning)
3905 return -EBUSY;
3906
3907 if (sdata->wdev.cac_started)
3908 return -EBUSY;
3909
3910 if (cfg80211_chandef_identical(¶ms->chandef,
3911 &sdata->vif.bss_conf.chandef))
3912 return -EINVAL;
3913
3914 /* don't allow another channel switch if one is already active. */
3915 if (sdata->vif.bss_conf.csa_active)
3916 return -EBUSY;
3917
3918 mutex_lock(&local->chanctx_mtx);
3919 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
3920 lockdep_is_held(&local->chanctx_mtx));
3921 if (!conf) {
3922 err = -EBUSY;
3923 goto out;
3924 }
3925
3926 if (params->chandef.chan->freq_offset) {
3927 /* this may work, but is untested */
3928 err = -EOPNOTSUPP;
3929 goto out;
3930 }
3931
3932 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3933
3934 ch_switch.timestamp = 0;
3935 ch_switch.device_timestamp = 0;
3936 ch_switch.block_tx = params->block_tx;
3937 ch_switch.chandef = params->chandef;
3938 ch_switch.count = params->count;
3939
3940 err = drv_pre_channel_switch(sdata, &ch_switch);
3941 if (err)
3942 goto out;
3943
3944 err = ieee80211_link_reserve_chanctx(&sdata->deflink, ¶ms->chandef,
3945 chanctx->mode,
3946 params->radar_required);
3947 if (err)
3948 goto out;
3949
3950 /* if reservation is invalid then this will fail */
3951 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3952 if (err) {
3953 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3954 goto out;
3955 }
3956
3957 /* if there is a color change in progress, abort it */
3958 if (sdata->vif.bss_conf.color_change_active)
3959 ieee80211_color_change_abort(sdata);
3960
3961 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3962 if (err) {
3963 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3964 goto out;
3965 }
3966
3967 if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support)
3968 goto out;
3969
3970 sdata->deflink.csa_chandef = params->chandef;
3971 sdata->deflink.csa_block_tx = params->block_tx;
3972 sdata->vif.bss_conf.csa_active = true;
3973 sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap;
3974
3975 if (sdata->deflink.csa_block_tx)
3976 ieee80211_stop_vif_queues(local, sdata,
3977 IEEE80211_QUEUE_STOP_REASON_CSA);
3978
3979 cfg80211_ch_switch_started_notify(sdata->dev,
3980 &sdata->deflink.csa_chandef, 0,
3981 params->count, params->block_tx,
3982 sdata->vif.bss_conf.csa_punct_bitmap);
3983
3984 if (changed) {
3985 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3986 changed);
3987 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3988 } else {
3989 /* if the beacon didn't change, we can finalize immediately */
3990 ieee80211_csa_finalize(sdata);
3991 }
3992
3993 out:
3994 mutex_unlock(&local->chanctx_mtx);
3995 return err;
3996 }
3997
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3998 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3999 struct cfg80211_csa_settings *params)
4000 {
4001 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4002 struct ieee80211_local *local = sdata->local;
4003 int err;
4004
4005 mutex_lock(&local->mtx);
4006 err = __ieee80211_channel_switch(wiphy, dev, params);
4007 mutex_unlock(&local->mtx);
4008
4009 return err;
4010 }
4011
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)4012 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
4013 {
4014 lockdep_assert_held(&local->mtx);
4015
4016 local->roc_cookie_counter++;
4017
4018 /* wow, you wrapped 64 bits ... more likely a bug */
4019 if (WARN_ON(local->roc_cookie_counter == 0))
4020 local->roc_cookie_counter++;
4021
4022 return local->roc_cookie_counter;
4023 }
4024
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)4025 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
4026 u64 *cookie, gfp_t gfp)
4027 {
4028 unsigned long spin_flags;
4029 struct sk_buff *ack_skb;
4030 int id;
4031
4032 ack_skb = skb_copy(skb, gfp);
4033 if (!ack_skb)
4034 return -ENOMEM;
4035
4036 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
4037 id = idr_alloc(&local->ack_status_frames, ack_skb,
4038 1, 0x2000, GFP_ATOMIC);
4039 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
4040
4041 if (id < 0) {
4042 kfree_skb(ack_skb);
4043 return -ENOMEM;
4044 }
4045
4046 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
4047
4048 *cookie = ieee80211_mgmt_tx_cookie(local);
4049 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
4050
4051 return 0;
4052 }
4053
4054 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)4055 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
4056 struct wireless_dev *wdev,
4057 struct mgmt_frame_regs *upd)
4058 {
4059 struct ieee80211_local *local = wiphy_priv(wiphy);
4060 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4061 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
4062 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
4063 bool global_change, intf_change;
4064
4065 global_change =
4066 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
4067 (local->rx_mcast_action_reg !=
4068 !!(upd->global_mcast_stypes & action_mask));
4069 local->probe_req_reg = upd->global_stypes & preq_mask;
4070 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
4071
4072 intf_change = (sdata->vif.probe_req_reg !=
4073 !!(upd->interface_stypes & preq_mask)) ||
4074 (sdata->vif.rx_mcast_action_reg !=
4075 !!(upd->interface_mcast_stypes & action_mask));
4076 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
4077 sdata->vif.rx_mcast_action_reg =
4078 upd->interface_mcast_stypes & action_mask;
4079
4080 if (!local->open_count)
4081 return;
4082
4083 if (intf_change && ieee80211_sdata_running(sdata))
4084 drv_config_iface_filter(local, sdata,
4085 sdata->vif.probe_req_reg ?
4086 FIF_PROBE_REQ : 0,
4087 FIF_PROBE_REQ);
4088
4089 if (global_change)
4090 ieee80211_configure_filter(local);
4091 }
4092
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)4093 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
4094 {
4095 struct ieee80211_local *local = wiphy_priv(wiphy);
4096
4097 if (local->started)
4098 return -EOPNOTSUPP;
4099
4100 return drv_set_antenna(local, tx_ant, rx_ant);
4101 }
4102
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)4103 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4104 {
4105 struct ieee80211_local *local = wiphy_priv(wiphy);
4106
4107 return drv_get_antenna(local, tx_ant, rx_ant);
4108 }
4109
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)4110 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4111 struct net_device *dev,
4112 struct cfg80211_gtk_rekey_data *data)
4113 {
4114 struct ieee80211_local *local = wiphy_priv(wiphy);
4115 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4116
4117 if (!local->ops->set_rekey_data)
4118 return -EOPNOTSUPP;
4119
4120 drv_set_rekey_data(local, sdata, data);
4121
4122 return 0;
4123 }
4124
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)4125 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4126 const u8 *peer, u64 *cookie)
4127 {
4128 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4129 struct ieee80211_local *local = sdata->local;
4130 struct ieee80211_qos_hdr *nullfunc;
4131 struct sk_buff *skb;
4132 int size = sizeof(*nullfunc);
4133 __le16 fc;
4134 bool qos;
4135 struct ieee80211_tx_info *info;
4136 struct sta_info *sta;
4137 struct ieee80211_chanctx_conf *chanctx_conf;
4138 enum nl80211_band band;
4139 int ret;
4140
4141 /* the lock is needed to assign the cookie later */
4142 mutex_lock(&local->mtx);
4143
4144 rcu_read_lock();
4145 sta = sta_info_get_bss(sdata, peer);
4146 if (!sta) {
4147 ret = -ENOLINK;
4148 goto unlock;
4149 }
4150
4151 qos = sta->sta.wme;
4152
4153 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4154 if (WARN_ON(!chanctx_conf)) {
4155 ret = -EINVAL;
4156 goto unlock;
4157 }
4158 band = chanctx_conf->def.chan->band;
4159
4160 if (qos) {
4161 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4162 IEEE80211_STYPE_QOS_NULLFUNC |
4163 IEEE80211_FCTL_FROMDS);
4164 } else {
4165 size -= 2;
4166 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4167 IEEE80211_STYPE_NULLFUNC |
4168 IEEE80211_FCTL_FROMDS);
4169 }
4170
4171 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4172 if (!skb) {
4173 ret = -ENOMEM;
4174 goto unlock;
4175 }
4176
4177 skb->dev = dev;
4178
4179 skb_reserve(skb, local->hw.extra_tx_headroom);
4180
4181 nullfunc = skb_put(skb, size);
4182 nullfunc->frame_control = fc;
4183 nullfunc->duration_id = 0;
4184 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4185 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4186 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4187 nullfunc->seq_ctrl = 0;
4188
4189 info = IEEE80211_SKB_CB(skb);
4190
4191 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4192 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4193 info->band = band;
4194
4195 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4196 skb->priority = 7;
4197 if (qos)
4198 nullfunc->qos_ctrl = cpu_to_le16(7);
4199
4200 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4201 if (ret) {
4202 kfree_skb(skb);
4203 goto unlock;
4204 }
4205
4206 local_bh_disable();
4207 ieee80211_xmit(sdata, sta, skb);
4208 local_bh_enable();
4209
4210 ret = 0;
4211 unlock:
4212 rcu_read_unlock();
4213 mutex_unlock(&local->mtx);
4214
4215 return ret;
4216 }
4217
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)4218 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4219 struct wireless_dev *wdev,
4220 unsigned int link_id,
4221 struct cfg80211_chan_def *chandef)
4222 {
4223 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4224 struct ieee80211_local *local = wiphy_priv(wiphy);
4225 struct ieee80211_chanctx_conf *chanctx_conf;
4226 struct ieee80211_link_data *link;
4227 int ret = -ENODATA;
4228
4229 rcu_read_lock();
4230 link = rcu_dereference(sdata->link[link_id]);
4231 if (!link) {
4232 ret = -ENOLINK;
4233 goto out;
4234 }
4235
4236 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4237 if (chanctx_conf) {
4238 *chandef = link->conf->chandef;
4239 ret = 0;
4240 } else if (local->open_count > 0 &&
4241 local->open_count == local->monitors &&
4242 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4243 if (local->use_chanctx)
4244 *chandef = local->monitor_chandef;
4245 else
4246 *chandef = local->_oper_chandef;
4247 ret = 0;
4248 }
4249 out:
4250 rcu_read_unlock();
4251
4252 return ret;
4253 }
4254
4255 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)4256 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4257 {
4258 drv_set_wakeup(wiphy_priv(wiphy), enabled);
4259 }
4260 #endif
4261
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)4262 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4263 struct net_device *dev,
4264 struct cfg80211_qos_map *qos_map)
4265 {
4266 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4267 struct mac80211_qos_map *new_qos_map, *old_qos_map;
4268
4269 if (qos_map) {
4270 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4271 if (!new_qos_map)
4272 return -ENOMEM;
4273 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4274 } else {
4275 /* A NULL qos_map was passed to disable QoS mapping */
4276 new_qos_map = NULL;
4277 }
4278
4279 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4280 rcu_assign_pointer(sdata->qos_map, new_qos_map);
4281 if (old_qos_map)
4282 kfree_rcu(old_qos_map, rcu_head);
4283
4284 return 0;
4285 }
4286
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,struct cfg80211_chan_def * chandef)4287 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4288 struct net_device *dev,
4289 unsigned int link_id,
4290 struct cfg80211_chan_def *chandef)
4291 {
4292 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4293 struct ieee80211_link_data *link;
4294 int ret;
4295 u64 changed = 0;
4296
4297 link = sdata_dereference(sdata->link[link_id], sdata);
4298
4299 ret = ieee80211_link_change_bandwidth(link, chandef, &changed);
4300 if (ret == 0)
4301 ieee80211_link_info_change_notify(sdata, link, changed);
4302
4303 return ret;
4304 }
4305
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)4306 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4307 u8 tsid, const u8 *peer, u8 up,
4308 u16 admitted_time)
4309 {
4310 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4311 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4312 int ac = ieee802_1d_to_ac[up];
4313
4314 if (sdata->vif.type != NL80211_IFTYPE_STATION)
4315 return -EOPNOTSUPP;
4316
4317 if (!(sdata->wmm_acm & BIT(up)))
4318 return -EINVAL;
4319
4320 if (ifmgd->tx_tspec[ac].admitted_time)
4321 return -EBUSY;
4322
4323 if (admitted_time) {
4324 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4325 ifmgd->tx_tspec[ac].tsid = tsid;
4326 ifmgd->tx_tspec[ac].up = up;
4327 }
4328
4329 return 0;
4330 }
4331
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)4332 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4333 u8 tsid, const u8 *peer)
4334 {
4335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4336 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4337 struct ieee80211_local *local = wiphy_priv(wiphy);
4338 int ac;
4339
4340 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4341 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4342
4343 /* skip unused entries */
4344 if (!tx_tspec->admitted_time)
4345 continue;
4346
4347 if (tx_tspec->tsid != tsid)
4348 continue;
4349
4350 /* due to this new packets will be reassigned to non-ACM ACs */
4351 tx_tspec->up = -1;
4352
4353 /* Make sure that all packets have been sent to avoid to
4354 * restore the QoS params on packets that are still on the
4355 * queues.
4356 */
4357 synchronize_net();
4358 ieee80211_flush_queues(local, sdata, false);
4359
4360 /* restore the normal QoS parameters
4361 * (unconditionally to avoid races)
4362 */
4363 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4364 tx_tspec->downgraded = false;
4365 ieee80211_sta_handle_tspec_ac_params(sdata);
4366
4367 /* finally clear all the data */
4368 memset(tx_tspec, 0, sizeof(*tx_tspec));
4369
4370 return 0;
4371 }
4372
4373 return -ENOENT;
4374 }
4375
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)4376 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4377 u8 inst_id,
4378 enum nl80211_nan_func_term_reason reason,
4379 gfp_t gfp)
4380 {
4381 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4382 struct cfg80211_nan_func *func;
4383 u64 cookie;
4384
4385 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4386 return;
4387
4388 spin_lock_bh(&sdata->u.nan.func_lock);
4389
4390 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4391 if (WARN_ON(!func)) {
4392 spin_unlock_bh(&sdata->u.nan.func_lock);
4393 return;
4394 }
4395
4396 cookie = func->cookie;
4397 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4398
4399 spin_unlock_bh(&sdata->u.nan.func_lock);
4400
4401 cfg80211_free_nan_func(func);
4402
4403 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4404 reason, cookie, gfp);
4405 }
4406 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4407
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)4408 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4409 struct cfg80211_nan_match_params *match,
4410 gfp_t gfp)
4411 {
4412 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4413 struct cfg80211_nan_func *func;
4414
4415 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4416 return;
4417
4418 spin_lock_bh(&sdata->u.nan.func_lock);
4419
4420 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
4421 if (WARN_ON(!func)) {
4422 spin_unlock_bh(&sdata->u.nan.func_lock);
4423 return;
4424 }
4425 match->cookie = func->cookie;
4426
4427 spin_unlock_bh(&sdata->u.nan.func_lock);
4428
4429 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4430 }
4431 EXPORT_SYMBOL(ieee80211_nan_func_match);
4432
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)4433 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4434 struct net_device *dev,
4435 const bool enabled)
4436 {
4437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4438
4439 sdata->u.ap.multicast_to_unicast = enabled;
4440
4441 return 0;
4442 }
4443
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)4444 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4445 struct txq_info *txqi)
4446 {
4447 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4448 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4449 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4450 }
4451
4452 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4453 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4454 txqstats->backlog_packets = txqi->tin.backlog_packets;
4455 }
4456
4457 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4458 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4459 txqstats->flows = txqi->tin.flows;
4460 }
4461
4462 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4463 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4464 txqstats->drops = txqi->cstats.drop_count;
4465 }
4466
4467 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4468 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4469 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4470 }
4471
4472 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4473 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4474 txqstats->overlimit = txqi->tin.overlimit;
4475 }
4476
4477 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4478 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4479 txqstats->collisions = txqi->tin.collisions;
4480 }
4481
4482 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4483 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4484 txqstats->tx_bytes = txqi->tin.tx_bytes;
4485 }
4486
4487 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4488 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4489 txqstats->tx_packets = txqi->tin.tx_packets;
4490 }
4491 }
4492
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)4493 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4494 struct wireless_dev *wdev,
4495 struct cfg80211_txq_stats *txqstats)
4496 {
4497 struct ieee80211_local *local = wiphy_priv(wiphy);
4498 struct ieee80211_sub_if_data *sdata;
4499 int ret = 0;
4500
4501 spin_lock_bh(&local->fq.lock);
4502 rcu_read_lock();
4503
4504 if (wdev) {
4505 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4506 if (!sdata->vif.txq) {
4507 ret = 1;
4508 goto out;
4509 }
4510 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4511 } else {
4512 /* phy stats */
4513 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4514 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4515 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4516 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4517 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4518 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4519 txqstats->backlog_packets = local->fq.backlog;
4520 txqstats->backlog_bytes = local->fq.memory_usage;
4521 txqstats->overlimit = local->fq.overlimit;
4522 txqstats->overmemory = local->fq.overmemory;
4523 txqstats->collisions = local->fq.collisions;
4524 txqstats->max_flows = local->fq.flows_cnt;
4525 }
4526
4527 out:
4528 rcu_read_unlock();
4529 spin_unlock_bh(&local->fq.lock);
4530
4531 return ret;
4532 }
4533
4534 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4535 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4536 struct net_device *dev,
4537 struct cfg80211_ftm_responder_stats *ftm_stats)
4538 {
4539 struct ieee80211_local *local = wiphy_priv(wiphy);
4540 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4541
4542 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4543 }
4544
4545 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4546 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4547 struct cfg80211_pmsr_request *request)
4548 {
4549 struct ieee80211_local *local = wiphy_priv(wiphy);
4550 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4551
4552 return drv_start_pmsr(local, sdata, request);
4553 }
4554
4555 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4556 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4557 struct cfg80211_pmsr_request *request)
4558 {
4559 struct ieee80211_local *local = wiphy_priv(wiphy);
4560 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4561
4562 return drv_abort_pmsr(local, sdata, request);
4563 }
4564
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4565 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4566 struct net_device *dev,
4567 struct cfg80211_tid_config *tid_conf)
4568 {
4569 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4570 struct sta_info *sta;
4571 int ret;
4572
4573 if (!sdata->local->ops->set_tid_config)
4574 return -EOPNOTSUPP;
4575
4576 if (!tid_conf->peer)
4577 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4578
4579 mutex_lock(&sdata->local->sta_mtx);
4580 sta = sta_info_get_bss(sdata, tid_conf->peer);
4581 if (!sta) {
4582 mutex_unlock(&sdata->local->sta_mtx);
4583 return -ENOENT;
4584 }
4585
4586 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4587 mutex_unlock(&sdata->local->sta_mtx);
4588
4589 return ret;
4590 }
4591
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4592 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4593 struct net_device *dev,
4594 const u8 *peer, u8 tids)
4595 {
4596 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4597 struct sta_info *sta;
4598 int ret;
4599
4600 if (!sdata->local->ops->reset_tid_config)
4601 return -EOPNOTSUPP;
4602
4603 if (!peer)
4604 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4605
4606 mutex_lock(&sdata->local->sta_mtx);
4607 sta = sta_info_get_bss(sdata, peer);
4608 if (!sta) {
4609 mutex_unlock(&sdata->local->sta_mtx);
4610 return -ENOENT;
4611 }
4612
4613 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4614 mutex_unlock(&sdata->local->sta_mtx);
4615
4616 return ret;
4617 }
4618
ieee80211_set_sar_specs(struct wiphy * wiphy,struct cfg80211_sar_specs * sar)4619 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4620 struct cfg80211_sar_specs *sar)
4621 {
4622 struct ieee80211_local *local = wiphy_priv(wiphy);
4623
4624 if (!local->ops->set_sar_specs)
4625 return -EOPNOTSUPP;
4626
4627 return local->ops->set_sar_specs(&local->hw, sar);
4628 }
4629
4630 static int
ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data * sdata,u64 * changed)4631 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4632 u64 *changed)
4633 {
4634 switch (sdata->vif.type) {
4635 case NL80211_IFTYPE_AP: {
4636 int ret;
4637
4638 if (!sdata->deflink.u.ap.next_beacon)
4639 return -EINVAL;
4640
4641 ret = ieee80211_assign_beacon(sdata, &sdata->deflink,
4642 sdata->deflink.u.ap.next_beacon,
4643 NULL, NULL, changed);
4644 ieee80211_free_next_beacon(&sdata->deflink);
4645
4646 if (ret < 0)
4647 return ret;
4648
4649 break;
4650 }
4651 default:
4652 WARN_ON_ONCE(1);
4653 return -EINVAL;
4654 }
4655
4656 return 0;
4657 }
4658
4659 static int
ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_color_change_settings * params,u64 * changed)4660 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4661 struct cfg80211_color_change_settings *params,
4662 u64 *changed)
4663 {
4664 struct ieee80211_color_change_settings color_change = {};
4665 int err;
4666
4667 switch (sdata->vif.type) {
4668 case NL80211_IFTYPE_AP:
4669 sdata->deflink.u.ap.next_beacon =
4670 cfg80211_beacon_dup(¶ms->beacon_next);
4671 if (!sdata->deflink.u.ap.next_beacon)
4672 return -ENOMEM;
4673
4674 if (params->count <= 1)
4675 break;
4676
4677 color_change.counter_offset_beacon =
4678 params->counter_offset_beacon;
4679 color_change.counter_offset_presp =
4680 params->counter_offset_presp;
4681 color_change.count = params->count;
4682
4683 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
4684 ¶ms->beacon_color_change,
4685 NULL, &color_change, changed);
4686 if (err < 0) {
4687 ieee80211_free_next_beacon(&sdata->deflink);
4688 return err;
4689 }
4690 break;
4691 default:
4692 return -EOPNOTSUPP;
4693 }
4694
4695 return 0;
4696 }
4697
4698 static void
ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data * sdata,u8 color,int enable,u64 changed)4699 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4700 u8 color, int enable, u64 changed)
4701 {
4702 sdata->vif.bss_conf.he_bss_color.color = color;
4703 sdata->vif.bss_conf.he_bss_color.enabled = enable;
4704 changed |= BSS_CHANGED_HE_BSS_COLOR;
4705
4706 ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
4707
4708 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4709 struct ieee80211_sub_if_data *child;
4710
4711 mutex_lock(&sdata->local->iflist_mtx);
4712 list_for_each_entry(child, &sdata->local->interfaces, list) {
4713 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4714 child->vif.bss_conf.he_bss_color.color = color;
4715 child->vif.bss_conf.he_bss_color.enabled = enable;
4716 ieee80211_link_info_change_notify(child,
4717 &child->deflink,
4718 BSS_CHANGED_HE_BSS_COLOR);
4719 }
4720 }
4721 mutex_unlock(&sdata->local->iflist_mtx);
4722 }
4723 }
4724
ieee80211_color_change_finalize(struct ieee80211_sub_if_data * sdata)4725 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4726 {
4727 struct ieee80211_local *local = sdata->local;
4728 u64 changed = 0;
4729 int err;
4730
4731 sdata_assert_lock(sdata);
4732 lockdep_assert_held(&local->mtx);
4733
4734 sdata->vif.bss_conf.color_change_active = false;
4735
4736 err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4737 if (err) {
4738 cfg80211_color_change_aborted_notify(sdata->dev);
4739 return err;
4740 }
4741
4742 ieee80211_color_change_bss_config_notify(sdata,
4743 sdata->vif.bss_conf.color_change_color,
4744 1, changed);
4745 cfg80211_color_change_notify(sdata->dev);
4746
4747 return 0;
4748 }
4749
ieee80211_color_change_finalize_work(struct work_struct * work)4750 void ieee80211_color_change_finalize_work(struct work_struct *work)
4751 {
4752 struct ieee80211_sub_if_data *sdata =
4753 container_of(work, struct ieee80211_sub_if_data,
4754 deflink.color_change_finalize_work);
4755 struct ieee80211_local *local = sdata->local;
4756
4757 sdata_lock(sdata);
4758 mutex_lock(&local->mtx);
4759
4760 /* AP might have been stopped while waiting for the lock. */
4761 if (!sdata->vif.bss_conf.color_change_active)
4762 goto unlock;
4763
4764 if (!ieee80211_sdata_running(sdata))
4765 goto unlock;
4766
4767 ieee80211_color_change_finalize(sdata);
4768
4769 unlock:
4770 mutex_unlock(&local->mtx);
4771 sdata_unlock(sdata);
4772 }
4773
ieee80211_color_collision_detection_work(struct work_struct * work)4774 void ieee80211_color_collision_detection_work(struct work_struct *work)
4775 {
4776 struct delayed_work *delayed_work = to_delayed_work(work);
4777 struct ieee80211_link_data *link =
4778 container_of(delayed_work, struct ieee80211_link_data,
4779 color_collision_detect_work);
4780 struct ieee80211_sub_if_data *sdata = link->sdata;
4781
4782 sdata_lock(sdata);
4783 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap);
4784 sdata_unlock(sdata);
4785 }
4786
ieee80211_color_change_finish(struct ieee80211_vif * vif)4787 void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4788 {
4789 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4790
4791 ieee80211_queue_work(&sdata->local->hw,
4792 &sdata->deflink.color_change_finalize_work);
4793 }
4794 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4795
4796 void
ieee80211_obss_color_collision_notify(struct ieee80211_vif * vif,u64 color_bitmap,gfp_t gfp)4797 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4798 u64 color_bitmap, gfp_t gfp)
4799 {
4800 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4801 struct ieee80211_link_data *link = &sdata->deflink;
4802
4803 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
4804 return;
4805
4806 if (delayed_work_pending(&link->color_collision_detect_work))
4807 return;
4808
4809 link->color_bitmap = color_bitmap;
4810 /* queue the color collision detection event every 500 ms in order to
4811 * avoid sending too much netlink messages to userspace.
4812 */
4813 ieee80211_queue_delayed_work(&sdata->local->hw,
4814 &link->color_collision_detect_work,
4815 msecs_to_jiffies(500));
4816 }
4817 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
4818
4819 static int
ieee80211_color_change(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_color_change_settings * params)4820 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4821 struct cfg80211_color_change_settings *params)
4822 {
4823 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4824 struct ieee80211_local *local = sdata->local;
4825 u64 changed = 0;
4826 int err;
4827
4828 sdata_assert_lock(sdata);
4829
4830 if (sdata->vif.bss_conf.nontransmitted)
4831 return -EINVAL;
4832
4833 mutex_lock(&local->mtx);
4834
4835 /* don't allow another color change if one is already active or if csa
4836 * is active
4837 */
4838 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) {
4839 err = -EBUSY;
4840 goto out;
4841 }
4842
4843 err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4844 if (err)
4845 goto out;
4846
4847 sdata->vif.bss_conf.color_change_active = true;
4848 sdata->vif.bss_conf.color_change_color = params->color;
4849
4850 cfg80211_color_change_started_notify(sdata->dev, params->count);
4851
4852 if (changed)
4853 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4854 else
4855 /* if the beacon didn't change, we can finalize immediately */
4856 ieee80211_color_change_finalize(sdata);
4857
4858 out:
4859 mutex_unlock(&local->mtx);
4860
4861 return err;
4862 }
4863
4864 static int
ieee80211_set_radar_background(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)4865 ieee80211_set_radar_background(struct wiphy *wiphy,
4866 struct cfg80211_chan_def *chandef)
4867 {
4868 struct ieee80211_local *local = wiphy_priv(wiphy);
4869
4870 if (!local->ops->set_radar_background)
4871 return -EOPNOTSUPP;
4872
4873 return local->ops->set_radar_background(&local->hw, chandef);
4874 }
4875
ieee80211_add_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)4876 static int ieee80211_add_intf_link(struct wiphy *wiphy,
4877 struct wireless_dev *wdev,
4878 unsigned int link_id)
4879 {
4880 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4881 int res;
4882
4883 if (wdev->use_4addr)
4884 return -EOPNOTSUPP;
4885
4886 mutex_lock(&sdata->local->mtx);
4887 res = ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
4888 mutex_unlock(&sdata->local->mtx);
4889
4890 return res;
4891 }
4892
ieee80211_del_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)4893 static void ieee80211_del_intf_link(struct wiphy *wiphy,
4894 struct wireless_dev *wdev,
4895 unsigned int link_id)
4896 {
4897 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4898
4899 mutex_lock(&sdata->local->mtx);
4900 ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
4901 mutex_unlock(&sdata->local->mtx);
4902 }
4903
sta_add_link_station(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,struct link_station_parameters * params)4904 static int sta_add_link_station(struct ieee80211_local *local,
4905 struct ieee80211_sub_if_data *sdata,
4906 struct link_station_parameters *params)
4907 {
4908 struct sta_info *sta;
4909 int ret;
4910
4911 sta = sta_info_get_bss(sdata, params->mld_mac);
4912 if (!sta)
4913 return -ENOENT;
4914
4915 if (!sta->sta.valid_links)
4916 return -EINVAL;
4917
4918 if (sta->sta.valid_links & BIT(params->link_id))
4919 return -EALREADY;
4920
4921 ret = ieee80211_sta_allocate_link(sta, params->link_id);
4922 if (ret)
4923 return ret;
4924
4925 ret = sta_link_apply_parameters(local, sta, true, params);
4926 if (ret) {
4927 ieee80211_sta_free_link(sta, params->link_id);
4928 return ret;
4929 }
4930
4931 /* ieee80211_sta_activate_link frees the link upon failure */
4932 return ieee80211_sta_activate_link(sta, params->link_id);
4933 }
4934
4935 static int
ieee80211_add_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)4936 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
4937 struct link_station_parameters *params)
4938 {
4939 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4940 struct ieee80211_local *local = wiphy_priv(wiphy);
4941 int ret;
4942
4943 mutex_lock(&sdata->local->sta_mtx);
4944 ret = sta_add_link_station(local, sdata, params);
4945 mutex_unlock(&sdata->local->sta_mtx);
4946
4947 return ret;
4948 }
4949
sta_mod_link_station(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,struct link_station_parameters * params)4950 static int sta_mod_link_station(struct ieee80211_local *local,
4951 struct ieee80211_sub_if_data *sdata,
4952 struct link_station_parameters *params)
4953 {
4954 struct sta_info *sta;
4955
4956 sta = sta_info_get_bss(sdata, params->mld_mac);
4957 if (!sta)
4958 return -ENOENT;
4959
4960 if (!(sta->sta.valid_links & BIT(params->link_id)))
4961 return -EINVAL;
4962
4963 return sta_link_apply_parameters(local, sta, false, params);
4964 }
4965
4966 static int
ieee80211_mod_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)4967 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
4968 struct link_station_parameters *params)
4969 {
4970 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4971 struct ieee80211_local *local = wiphy_priv(wiphy);
4972 int ret;
4973
4974 mutex_lock(&sdata->local->sta_mtx);
4975 ret = sta_mod_link_station(local, sdata, params);
4976 mutex_unlock(&sdata->local->sta_mtx);
4977
4978 return ret;
4979 }
4980
sta_del_link_station(struct ieee80211_sub_if_data * sdata,struct link_station_del_parameters * params)4981 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata,
4982 struct link_station_del_parameters *params)
4983 {
4984 struct sta_info *sta;
4985
4986 sta = sta_info_get_bss(sdata, params->mld_mac);
4987 if (!sta)
4988 return -ENOENT;
4989
4990 if (!(sta->sta.valid_links & BIT(params->link_id)))
4991 return -EINVAL;
4992
4993 /* must not create a STA without links */
4994 if (sta->sta.valid_links == BIT(params->link_id))
4995 return -EINVAL;
4996
4997 ieee80211_sta_remove_link(sta, params->link_id);
4998
4999 return 0;
5000 }
5001
5002 static int
ieee80211_del_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_del_parameters * params)5003 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
5004 struct link_station_del_parameters *params)
5005 {
5006 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5007 int ret;
5008
5009 mutex_lock(&sdata->local->sta_mtx);
5010 ret = sta_del_link_station(sdata, params);
5011 mutex_unlock(&sdata->local->sta_mtx);
5012
5013 return ret;
5014 }
5015
ieee80211_set_hw_timestamp(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_set_hw_timestamp * hwts)5016 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
5017 struct net_device *dev,
5018 struct cfg80211_set_hw_timestamp *hwts)
5019 {
5020 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5021 struct ieee80211_local *local = sdata->local;
5022
5023 if (!local->ops->set_hw_timestamp)
5024 return -EOPNOTSUPP;
5025
5026 if (!check_sdata_in_driver(sdata))
5027 return -EIO;
5028
5029 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
5030 }
5031
5032 const struct cfg80211_ops mac80211_config_ops = {
5033 .add_virtual_intf = ieee80211_add_iface,
5034 .del_virtual_intf = ieee80211_del_iface,
5035 .change_virtual_intf = ieee80211_change_iface,
5036 .start_p2p_device = ieee80211_start_p2p_device,
5037 .stop_p2p_device = ieee80211_stop_p2p_device,
5038 .add_key = ieee80211_add_key,
5039 .del_key = ieee80211_del_key,
5040 .get_key = ieee80211_get_key,
5041 .set_default_key = ieee80211_config_default_key,
5042 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5043 .set_default_beacon_key = ieee80211_config_default_beacon_key,
5044 .start_ap = ieee80211_start_ap,
5045 .change_beacon = ieee80211_change_beacon,
5046 .stop_ap = ieee80211_stop_ap,
5047 .add_station = ieee80211_add_station,
5048 .del_station = ieee80211_del_station,
5049 .change_station = ieee80211_change_station,
5050 .get_station = ieee80211_get_station,
5051 .dump_station = ieee80211_dump_station,
5052 .dump_survey = ieee80211_dump_survey,
5053 #ifdef CONFIG_MAC80211_MESH
5054 .add_mpath = ieee80211_add_mpath,
5055 .del_mpath = ieee80211_del_mpath,
5056 .change_mpath = ieee80211_change_mpath,
5057 .get_mpath = ieee80211_get_mpath,
5058 .dump_mpath = ieee80211_dump_mpath,
5059 .get_mpp = ieee80211_get_mpp,
5060 .dump_mpp = ieee80211_dump_mpp,
5061 .update_mesh_config = ieee80211_update_mesh_config,
5062 .get_mesh_config = ieee80211_get_mesh_config,
5063 .join_mesh = ieee80211_join_mesh,
5064 .leave_mesh = ieee80211_leave_mesh,
5065 #endif
5066 .join_ocb = ieee80211_join_ocb,
5067 .leave_ocb = ieee80211_leave_ocb,
5068 .change_bss = ieee80211_change_bss,
5069 .inform_bss = ieee80211_inform_bss,
5070 .set_txq_params = ieee80211_set_txq_params,
5071 .set_monitor_channel = ieee80211_set_monitor_channel,
5072 .suspend = ieee80211_suspend,
5073 .resume = ieee80211_resume,
5074 .scan = ieee80211_scan,
5075 .abort_scan = ieee80211_abort_scan,
5076 .sched_scan_start = ieee80211_sched_scan_start,
5077 .sched_scan_stop = ieee80211_sched_scan_stop,
5078 .auth = ieee80211_auth,
5079 .assoc = ieee80211_assoc,
5080 .deauth = ieee80211_deauth,
5081 .disassoc = ieee80211_disassoc,
5082 .join_ibss = ieee80211_join_ibss,
5083 .leave_ibss = ieee80211_leave_ibss,
5084 .set_mcast_rate = ieee80211_set_mcast_rate,
5085 .set_wiphy_params = ieee80211_set_wiphy_params,
5086 .set_tx_power = ieee80211_set_tx_power,
5087 .get_tx_power = ieee80211_get_tx_power,
5088 .rfkill_poll = ieee80211_rfkill_poll,
5089 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
5090 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
5091 .set_power_mgmt = ieee80211_set_power_mgmt,
5092 .set_bitrate_mask = ieee80211_set_bitrate_mask,
5093 .remain_on_channel = ieee80211_remain_on_channel,
5094 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
5095 .mgmt_tx = ieee80211_mgmt_tx,
5096 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
5097 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
5098 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
5099 .update_mgmt_frame_registrations =
5100 ieee80211_update_mgmt_frame_registrations,
5101 .set_antenna = ieee80211_set_antenna,
5102 .get_antenna = ieee80211_get_antenna,
5103 .set_rekey_data = ieee80211_set_rekey_data,
5104 .tdls_oper = ieee80211_tdls_oper,
5105 .tdls_mgmt = ieee80211_tdls_mgmt,
5106 .tdls_channel_switch = ieee80211_tdls_channel_switch,
5107 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
5108 .probe_client = ieee80211_probe_client,
5109 .set_noack_map = ieee80211_set_noack_map,
5110 #ifdef CONFIG_PM
5111 .set_wakeup = ieee80211_set_wakeup,
5112 #endif
5113 .get_channel = ieee80211_cfg_get_channel,
5114 .start_radar_detection = ieee80211_start_radar_detection,
5115 .end_cac = ieee80211_end_cac,
5116 .channel_switch = ieee80211_channel_switch,
5117 .set_qos_map = ieee80211_set_qos_map,
5118 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
5119 .add_tx_ts = ieee80211_add_tx_ts,
5120 .del_tx_ts = ieee80211_del_tx_ts,
5121 .start_nan = ieee80211_start_nan,
5122 .stop_nan = ieee80211_stop_nan,
5123 .nan_change_conf = ieee80211_nan_change_conf,
5124 .add_nan_func = ieee80211_add_nan_func,
5125 .del_nan_func = ieee80211_del_nan_func,
5126 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5127 .tx_control_port = ieee80211_tx_control_port,
5128 .get_txq_stats = ieee80211_get_txq_stats,
5129 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5130 .start_pmsr = ieee80211_start_pmsr,
5131 .abort_pmsr = ieee80211_abort_pmsr,
5132 .probe_mesh_link = ieee80211_probe_mesh_link,
5133 .set_tid_config = ieee80211_set_tid_config,
5134 .reset_tid_config = ieee80211_reset_tid_config,
5135 .set_sar_specs = ieee80211_set_sar_specs,
5136 .color_change = ieee80211_color_change,
5137 .set_radar_background = ieee80211_set_radar_background,
5138 .add_intf_link = ieee80211_add_intf_link,
5139 .del_intf_link = ieee80211_del_intf_link,
5140 .add_link_station = ieee80211_add_link_station,
5141 .mod_link_station = ieee80211_mod_link_station,
5142 .del_link_station = ieee80211_del_link_station,
5143 .set_hw_timestamp = ieee80211_set_hw_timestamp,
5144 };
5145