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Merge tag 'mm-hotfixes-stable-2025-07-11-16-16' of git://git.kernel.org/pub/scm/linux...
[linux-2.6-block.git] / net / mac80211 / cfg.c
... / ...
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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) 2018-2025 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
26static struct ieee80211_link_data *
27ieee80211_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
50static 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
84static 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_ACTIVE;
93
94 /*
95 * Prohibit MONITOR_FLAG_ACTIVE to be changed
96 * while the interface is up.
97 * Else we would need to add a lot of cruft
98 * to update everything:
99 * monitor and all fif_* counters
100 * reconfigure hardware
101 */
102 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
103 return -EBUSY;
104 }
105
106 /* also validate MU-MIMO change */
107 if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
108 monitor_sdata = sdata;
109 else
110 monitor_sdata = wiphy_dereference(local->hw.wiphy,
111 local->monitor_sdata);
112
113 if (!monitor_sdata &&
114 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
115 return -EOPNOTSUPP;
116
117 /* apply all changes now - no failures allowed */
118
119 if (monitor_sdata &&
120 (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
121 ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)))
122 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
123
124 if (params->flags) {
125 if (ieee80211_sdata_running(sdata)) {
126 ieee80211_adjust_monitor_flags(sdata, -1);
127 sdata->u.mntr.flags = params->flags;
128 ieee80211_adjust_monitor_flags(sdata, 1);
129
130 ieee80211_configure_filter(local);
131 } else {
132 /*
133 * Because the interface is down, ieee80211_do_stop
134 * and ieee80211_do_open take care of "everything"
135 * mentioned in the comment above.
136 */
137 sdata->u.mntr.flags = params->flags;
138 }
139 }
140
141 return 0;
142}
143
144static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
145 struct cfg80211_mbssid_config *params,
146 struct ieee80211_bss_conf *link_conf)
147{
148 struct ieee80211_sub_if_data *tx_sdata;
149 struct ieee80211_bss_conf *old;
150
151 link_conf->bssid_index = 0;
152 link_conf->nontransmitted = false;
153 link_conf->ema_ap = false;
154 link_conf->bssid_indicator = 0;
155
156 if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev)
157 return -EINVAL;
158
159 old = sdata_dereference(link_conf->tx_bss_conf, sdata);
160 if (old)
161 return -EALREADY;
162
163 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev);
164 if (!tx_sdata)
165 return -EINVAL;
166
167 if (tx_sdata == sdata) {
168 rcu_assign_pointer(link_conf->tx_bss_conf, link_conf);
169 } else {
170 struct ieee80211_bss_conf *tx_bss_conf;
171
172 tx_bss_conf = sdata_dereference(tx_sdata->vif.link_conf[params->tx_link_id],
173 sdata);
174 if (rcu_access_pointer(tx_bss_conf->tx_bss_conf) != tx_bss_conf)
175 return -EINVAL;
176
177 rcu_assign_pointer(link_conf->tx_bss_conf, tx_bss_conf);
178
179 link_conf->nontransmitted = true;
180 link_conf->bssid_index = params->index;
181 }
182 if (params->ema)
183 link_conf->ema_ap = true;
184
185 return 0;
186}
187
188static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
189 const char *name,
190 unsigned char name_assign_type,
191 enum nl80211_iftype type,
192 struct vif_params *params)
193{
194 struct ieee80211_local *local = wiphy_priv(wiphy);
195 struct wireless_dev *wdev;
196 struct ieee80211_sub_if_data *sdata;
197 int err;
198
199 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
200 if (err)
201 return ERR_PTR(err);
202
203 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
204
205 if (type == NL80211_IFTYPE_MONITOR) {
206 err = ieee80211_set_mon_options(sdata, params);
207 if (err) {
208 ieee80211_if_remove(sdata);
209 return NULL;
210 }
211 }
212
213 /* Let the driver know that an interface is going to be added.
214 * Indicate so only for interface types that will be added to the
215 * driver.
216 */
217 switch (type) {
218 case NL80211_IFTYPE_AP_VLAN:
219 break;
220 case NL80211_IFTYPE_MONITOR:
221 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
222 !(params->flags & MONITOR_FLAG_ACTIVE))
223 break;
224 fallthrough;
225 default:
226 drv_prep_add_interface(local,
227 ieee80211_vif_type_p2p(&sdata->vif));
228 break;
229 }
230
231 return wdev;
232}
233
234static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
235{
236 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
237
238 return 0;
239}
240
241static int ieee80211_change_iface(struct wiphy *wiphy,
242 struct net_device *dev,
243 enum nl80211_iftype type,
244 struct vif_params *params)
245{
246 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
247 struct ieee80211_local *local = sdata->local;
248 struct sta_info *sta;
249 int ret;
250
251 lockdep_assert_wiphy(local->hw.wiphy);
252
253 ret = ieee80211_if_change_type(sdata, type);
254 if (ret)
255 return ret;
256
257 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
258 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
259 ieee80211_check_fast_rx_iface(sdata);
260 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
261 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
262
263 if (params->use_4addr == ifmgd->use_4addr)
264 return 0;
265
266 /* FIXME: no support for 4-addr MLO yet */
267 if (ieee80211_vif_is_mld(&sdata->vif))
268 return -EOPNOTSUPP;
269
270 sdata->u.mgd.use_4addr = params->use_4addr;
271 if (!ifmgd->associated)
272 return 0;
273
274 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
275 if (sta)
276 drv_sta_set_4addr(local, sdata, &sta->sta,
277 params->use_4addr);
278
279 if (params->use_4addr)
280 ieee80211_send_4addr_nullfunc(local, sdata);
281 }
282
283 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
284 ret = ieee80211_set_mon_options(sdata, params);
285 if (ret)
286 return ret;
287 }
288
289 return 0;
290}
291
292static int ieee80211_start_p2p_device(struct wiphy *wiphy,
293 struct wireless_dev *wdev)
294{
295 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
296 int ret;
297
298 lockdep_assert_wiphy(sdata->local->hw.wiphy);
299
300 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
301 if (ret < 0)
302 return ret;
303
304 return ieee80211_do_open(wdev, true);
305}
306
307static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
308 struct wireless_dev *wdev)
309{
310 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
311}
312
313static int ieee80211_start_nan(struct wiphy *wiphy,
314 struct wireless_dev *wdev,
315 struct cfg80211_nan_conf *conf)
316{
317 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
318 int ret;
319
320 lockdep_assert_wiphy(sdata->local->hw.wiphy);
321
322 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
323 if (ret < 0)
324 return ret;
325
326 ret = ieee80211_do_open(wdev, true);
327 if (ret)
328 return ret;
329
330 ret = drv_start_nan(sdata->local, sdata, conf);
331 if (ret)
332 ieee80211_sdata_stop(sdata);
333
334 sdata->u.nan.conf = *conf;
335
336 return ret;
337}
338
339static void ieee80211_stop_nan(struct wiphy *wiphy,
340 struct wireless_dev *wdev)
341{
342 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
343
344 drv_stop_nan(sdata->local, sdata);
345 ieee80211_sdata_stop(sdata);
346}
347
348static int ieee80211_nan_change_conf(struct wiphy *wiphy,
349 struct wireless_dev *wdev,
350 struct cfg80211_nan_conf *conf,
351 u32 changes)
352{
353 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
354 struct cfg80211_nan_conf new_conf;
355 int ret = 0;
356
357 if (sdata->vif.type != NL80211_IFTYPE_NAN)
358 return -EOPNOTSUPP;
359
360 if (!ieee80211_sdata_running(sdata))
361 return -ENETDOWN;
362
363 new_conf = sdata->u.nan.conf;
364
365 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
366 new_conf.master_pref = conf->master_pref;
367
368 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
369 new_conf.bands = conf->bands;
370
371 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
372 if (!ret)
373 sdata->u.nan.conf = new_conf;
374
375 return ret;
376}
377
378static int ieee80211_add_nan_func(struct wiphy *wiphy,
379 struct wireless_dev *wdev,
380 struct cfg80211_nan_func *nan_func)
381{
382 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
383 int ret;
384
385 if (sdata->vif.type != NL80211_IFTYPE_NAN)
386 return -EOPNOTSUPP;
387
388 if (!ieee80211_sdata_running(sdata))
389 return -ENETDOWN;
390
391 spin_lock_bh(&sdata->u.nan.func_lock);
392
393 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
394 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
395 GFP_ATOMIC);
396 spin_unlock_bh(&sdata->u.nan.func_lock);
397
398 if (ret < 0)
399 return ret;
400
401 nan_func->instance_id = ret;
402
403 WARN_ON(nan_func->instance_id == 0);
404
405 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
406 if (ret) {
407 spin_lock_bh(&sdata->u.nan.func_lock);
408 idr_remove(&sdata->u.nan.function_inst_ids,
409 nan_func->instance_id);
410 spin_unlock_bh(&sdata->u.nan.func_lock);
411 }
412
413 return ret;
414}
415
416static struct cfg80211_nan_func *
417ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
418 u64 cookie)
419{
420 struct cfg80211_nan_func *func;
421 int id;
422
423 lockdep_assert_held(&sdata->u.nan.func_lock);
424
425 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
426 if (func->cookie == cookie)
427 return func;
428 }
429
430 return NULL;
431}
432
433static void ieee80211_del_nan_func(struct wiphy *wiphy,
434 struct wireless_dev *wdev, u64 cookie)
435{
436 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
437 struct cfg80211_nan_func *func;
438 u8 instance_id = 0;
439
440 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
441 !ieee80211_sdata_running(sdata))
442 return;
443
444 spin_lock_bh(&sdata->u.nan.func_lock);
445
446 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
447 if (func)
448 instance_id = func->instance_id;
449
450 spin_unlock_bh(&sdata->u.nan.func_lock);
451
452 if (instance_id)
453 drv_del_nan_func(sdata->local, sdata, instance_id);
454}
455
456static int ieee80211_set_noack_map(struct wiphy *wiphy,
457 struct net_device *dev,
458 u16 noack_map)
459{
460 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
461
462 sdata->noack_map = noack_map;
463
464 ieee80211_check_fast_xmit_iface(sdata);
465
466 return 0;
467}
468
469static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
470 const u8 *mac_addr, u8 key_idx)
471{
472 struct ieee80211_local *local = sdata->local;
473 struct ieee80211_key *key;
474 struct sta_info *sta;
475 int ret = -EINVAL;
476
477 if (!wiphy_ext_feature_isset(local->hw.wiphy,
478 NL80211_EXT_FEATURE_EXT_KEY_ID))
479 return -EINVAL;
480
481 sta = sta_info_get_bss(sdata, mac_addr);
482
483 if (!sta)
484 return -EINVAL;
485
486 if (sta->ptk_idx == key_idx)
487 return 0;
488
489 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]);
490
491 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
492 ret = ieee80211_set_tx_key(key);
493
494 return ret;
495}
496
497static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
498 int link_id, u8 key_idx, bool pairwise,
499 const u8 *mac_addr, struct key_params *params)
500{
501 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
502 struct ieee80211_link_data *link =
503 ieee80211_link_or_deflink(sdata, link_id, false);
504 struct ieee80211_local *local = sdata->local;
505 struct sta_info *sta = NULL;
506 struct ieee80211_key *key;
507 int err;
508
509 lockdep_assert_wiphy(local->hw.wiphy);
510
511 if (!ieee80211_sdata_running(sdata))
512 return -ENETDOWN;
513
514 if (IS_ERR(link))
515 return PTR_ERR(link);
516
517 if (WARN_ON(pairwise && link_id >= 0))
518 return -EINVAL;
519
520 if (pairwise && params->mode == NL80211_KEY_SET_TX)
521 return ieee80211_set_tx(sdata, mac_addr, key_idx);
522
523 /* reject WEP and TKIP keys if WEP failed to initialize */
524 switch (params->cipher) {
525 case WLAN_CIPHER_SUITE_WEP40:
526 case WLAN_CIPHER_SUITE_TKIP:
527 case WLAN_CIPHER_SUITE_WEP104:
528 if (link_id >= 0)
529 return -EINVAL;
530 if (WARN_ON_ONCE(fips_enabled))
531 return -EINVAL;
532 break;
533 default:
534 break;
535 }
536
537 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
538 params->key, params->seq_len, params->seq);
539 if (IS_ERR(key))
540 return PTR_ERR(key);
541
542 if (pairwise) {
543 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
544 key->conf.link_id = -1;
545 } else {
546 key->conf.link_id = link->link_id;
547 }
548
549 if (params->mode == NL80211_KEY_NO_TX)
550 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
551
552 if (mac_addr) {
553 sta = sta_info_get_bss(sdata, mac_addr);
554 /*
555 * The ASSOC test makes sure the driver is ready to
556 * receive the key. When wpa_supplicant has roamed
557 * using FT, it attempts to set the key before
558 * association has completed, this rejects that attempt
559 * so it will set the key again after association.
560 *
561 * TODO: accept the key if we have a station entry and
562 * add it to the device after the station.
563 */
564 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
565 ieee80211_key_free_unused(key);
566 return -ENOENT;
567 }
568 }
569
570 switch (sdata->vif.type) {
571 case NL80211_IFTYPE_STATION:
572 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
573 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
574 break;
575 case NL80211_IFTYPE_AP:
576 case NL80211_IFTYPE_AP_VLAN:
577 /* Keys without a station are used for TX only */
578 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
579 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
580 break;
581 case NL80211_IFTYPE_ADHOC:
582 /* no MFP (yet) */
583 break;
584 case NL80211_IFTYPE_MESH_POINT:
585#ifdef CONFIG_MAC80211_MESH
586 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
587 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
588 break;
589#endif
590 case NL80211_IFTYPE_WDS:
591 case NL80211_IFTYPE_MONITOR:
592 case NL80211_IFTYPE_P2P_DEVICE:
593 case NL80211_IFTYPE_NAN:
594 case NL80211_IFTYPE_UNSPECIFIED:
595 case NUM_NL80211_IFTYPES:
596 case NL80211_IFTYPE_P2P_CLIENT:
597 case NL80211_IFTYPE_P2P_GO:
598 case NL80211_IFTYPE_OCB:
599 /* shouldn't happen */
600 WARN_ON_ONCE(1);
601 break;
602 }
603
604 err = ieee80211_key_link(key, link, sta);
605 /* KRACK protection, shouldn't happen but just silently accept key */
606 if (err == -EALREADY)
607 err = 0;
608
609 return err;
610}
611
612static struct ieee80211_key *
613ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id,
614 u8 key_idx, bool pairwise, const u8 *mac_addr)
615{
616 struct ieee80211_local *local __maybe_unused = sdata->local;
617 struct ieee80211_link_data *link = &sdata->deflink;
618 struct ieee80211_key *key;
619
620 if (link_id >= 0) {
621 link = sdata_dereference(sdata->link[link_id], sdata);
622 if (!link)
623 return NULL;
624 }
625
626 if (mac_addr) {
627 struct sta_info *sta;
628 struct link_sta_info *link_sta;
629
630 sta = sta_info_get_bss(sdata, mac_addr);
631 if (!sta)
632 return NULL;
633
634 if (link_id >= 0) {
635 link_sta = rcu_dereference_check(sta->link[link_id],
636 lockdep_is_held(&local->hw.wiphy->mtx));
637 if (!link_sta)
638 return NULL;
639 } else {
640 link_sta = &sta->deflink;
641 }
642
643 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
644 return wiphy_dereference(local->hw.wiphy,
645 sta->ptk[key_idx]);
646
647 if (!pairwise &&
648 key_idx < NUM_DEFAULT_KEYS +
649 NUM_DEFAULT_MGMT_KEYS +
650 NUM_DEFAULT_BEACON_KEYS)
651 return wiphy_dereference(local->hw.wiphy,
652 link_sta->gtk[key_idx]);
653
654 return NULL;
655 }
656
657 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
658 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
659
660 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]);
661 if (key)
662 return key;
663
664 /* or maybe it was a WEP key */
665 if (key_idx < NUM_DEFAULT_KEYS)
666 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
667
668 return NULL;
669}
670
671static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
672 int link_id, u8 key_idx, bool pairwise,
673 const u8 *mac_addr)
674{
675 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
676 struct ieee80211_local *local = sdata->local;
677 struct ieee80211_key *key;
678
679 lockdep_assert_wiphy(local->hw.wiphy);
680
681 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
682 if (!key)
683 return -ENOENT;
684
685 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
686
687 return 0;
688}
689
690static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
691 int link_id, u8 key_idx, bool pairwise,
692 const u8 *mac_addr, void *cookie,
693 void (*callback)(void *cookie,
694 struct key_params *params))
695{
696 struct ieee80211_sub_if_data *sdata;
697 u8 seq[6] = {0};
698 struct key_params params;
699 struct ieee80211_key *key;
700 u64 pn64;
701 u32 iv32;
702 u16 iv16;
703 int err = -ENOENT;
704 struct ieee80211_key_seq kseq = {};
705
706 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
707
708 rcu_read_lock();
709
710 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
711 if (!key)
712 goto out;
713
714 memset(&params, 0, sizeof(params));
715
716 params.cipher = key->conf.cipher;
717
718 switch (key->conf.cipher) {
719 case WLAN_CIPHER_SUITE_TKIP:
720 pn64 = atomic64_read(&key->conf.tx_pn);
721 iv32 = TKIP_PN_TO_IV32(pn64);
722 iv16 = TKIP_PN_TO_IV16(pn64);
723
724 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
725 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
726 drv_get_key_seq(sdata->local, key, &kseq);
727 iv32 = kseq.tkip.iv32;
728 iv16 = kseq.tkip.iv16;
729 }
730
731 seq[0] = iv16 & 0xff;
732 seq[1] = (iv16 >> 8) & 0xff;
733 seq[2] = iv32 & 0xff;
734 seq[3] = (iv32 >> 8) & 0xff;
735 seq[4] = (iv32 >> 16) & 0xff;
736 seq[5] = (iv32 >> 24) & 0xff;
737 params.seq = seq;
738 params.seq_len = 6;
739 break;
740 case WLAN_CIPHER_SUITE_CCMP:
741 case WLAN_CIPHER_SUITE_CCMP_256:
742 case WLAN_CIPHER_SUITE_AES_CMAC:
743 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
744 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
745 offsetof(typeof(kseq), aes_cmac));
746 fallthrough;
747 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
748 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
749 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
750 offsetof(typeof(kseq), aes_gmac));
751 fallthrough;
752 case WLAN_CIPHER_SUITE_GCMP:
753 case WLAN_CIPHER_SUITE_GCMP_256:
754 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
755 offsetof(typeof(kseq), gcmp));
756
757 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
758 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
759 drv_get_key_seq(sdata->local, key, &kseq);
760 memcpy(seq, kseq.ccmp.pn, 6);
761 } else {
762 pn64 = atomic64_read(&key->conf.tx_pn);
763 seq[0] = pn64;
764 seq[1] = pn64 >> 8;
765 seq[2] = pn64 >> 16;
766 seq[3] = pn64 >> 24;
767 seq[4] = pn64 >> 32;
768 seq[5] = pn64 >> 40;
769 }
770 params.seq = seq;
771 params.seq_len = 6;
772 break;
773 default:
774 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
775 break;
776 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
777 break;
778 drv_get_key_seq(sdata->local, key, &kseq);
779 params.seq = kseq.hw.seq;
780 params.seq_len = kseq.hw.seq_len;
781 break;
782 }
783
784 callback(cookie, &params);
785 err = 0;
786
787 out:
788 rcu_read_unlock();
789 return err;
790}
791
792static int ieee80211_config_default_key(struct wiphy *wiphy,
793 struct net_device *dev,
794 int link_id, u8 key_idx, bool uni,
795 bool multi)
796{
797 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
798 struct ieee80211_link_data *link =
799 ieee80211_link_or_deflink(sdata, link_id, false);
800
801 if (IS_ERR(link))
802 return PTR_ERR(link);
803
804 ieee80211_set_default_key(link, key_idx, uni, multi);
805
806 return 0;
807}
808
809static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
810 struct net_device *dev,
811 int link_id, u8 key_idx)
812{
813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
814 struct ieee80211_link_data *link =
815 ieee80211_link_or_deflink(sdata, link_id, true);
816
817 if (IS_ERR(link))
818 return PTR_ERR(link);
819
820 ieee80211_set_default_mgmt_key(link, key_idx);
821
822 return 0;
823}
824
825static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
826 struct net_device *dev,
827 int link_id, u8 key_idx)
828{
829 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
830 struct ieee80211_link_data *link =
831 ieee80211_link_or_deflink(sdata, link_id, true);
832
833 if (IS_ERR(link))
834 return PTR_ERR(link);
835
836 ieee80211_set_default_beacon_key(link, key_idx);
837
838 return 0;
839}
840
841void sta_set_rate_info_tx(struct sta_info *sta,
842 const struct ieee80211_tx_rate *rate,
843 struct rate_info *rinfo)
844{
845 rinfo->flags = 0;
846 if (rate->flags & IEEE80211_TX_RC_MCS) {
847 rinfo->flags |= RATE_INFO_FLAGS_MCS;
848 rinfo->mcs = rate->idx;
849 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
850 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
851 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
852 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
853 } else {
854 struct ieee80211_supported_band *sband;
855
856 sband = ieee80211_get_sband(sta->sdata);
857 WARN_ON_ONCE(sband && !sband->bitrates);
858 if (sband && sband->bitrates)
859 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
860 }
861 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
862 rinfo->bw = RATE_INFO_BW_40;
863 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
864 rinfo->bw = RATE_INFO_BW_80;
865 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
866 rinfo->bw = RATE_INFO_BW_160;
867 else
868 rinfo->bw = RATE_INFO_BW_20;
869 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
870 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
871}
872
873static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
874 int idx, u8 *mac, struct station_info *sinfo)
875{
876 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
877 struct ieee80211_local *local = sdata->local;
878 struct sta_info *sta;
879 int ret = -ENOENT;
880
881 lockdep_assert_wiphy(local->hw.wiphy);
882
883 sta = sta_info_get_by_idx(sdata, idx);
884 if (sta) {
885 ret = 0;
886 memcpy(mac, sta->sta.addr, ETH_ALEN);
887 sta_set_sinfo(sta, sinfo, true);
888 }
889
890 return ret;
891}
892
893static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
894 int idx, struct survey_info *survey)
895{
896 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
897
898 return drv_get_survey(local, idx, survey);
899}
900
901static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
902 const u8 *mac, struct station_info *sinfo)
903{
904 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
905 struct ieee80211_local *local = sdata->local;
906 struct sta_info *sta;
907 int ret = -ENOENT;
908
909 lockdep_assert_wiphy(local->hw.wiphy);
910
911 sta = sta_info_get_bss(sdata, mac);
912 if (sta) {
913 ret = 0;
914 sta_set_sinfo(sta, sinfo, true);
915 }
916
917 return ret;
918}
919
920static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
921 struct net_device *dev,
922 struct cfg80211_chan_def *chandef)
923{
924 struct ieee80211_local *local = wiphy_priv(wiphy);
925 struct ieee80211_sub_if_data *sdata;
926 struct ieee80211_chan_req chanreq = { .oper = *chandef };
927 int ret;
928
929 lockdep_assert_wiphy(local->hw.wiphy);
930
931 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
932 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
933 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper,
934 &chanreq.oper))
935 return 0;
936
937 sdata = wiphy_dereference(wiphy, local->monitor_sdata);
938 if (!sdata)
939 goto done;
940 }
941
942 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) &&
943 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper,
944 &chanreq.oper))
945 return 0;
946
947 ieee80211_link_release_channel(&sdata->deflink);
948 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
949 IEEE80211_CHANCTX_SHARED);
950 if (ret)
951 return ret;
952done:
953 local->monitor_chanreq = chanreq;
954 return 0;
955}
956
957static int
958ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
959 const u8 *resp, size_t resp_len,
960 const struct ieee80211_csa_settings *csa,
961 const struct ieee80211_color_change_settings *cca,
962 struct ieee80211_link_data *link)
963{
964 struct probe_resp *new, *old;
965
966 if (!resp || !resp_len)
967 return 1;
968
969 old = sdata_dereference(link->u.ap.probe_resp, sdata);
970
971 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
972 if (!new)
973 return -ENOMEM;
974
975 new->len = resp_len;
976 memcpy(new->data, resp, resp_len);
977
978 if (csa)
979 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
980 csa->n_counter_offsets_presp *
981 sizeof(new->cntdwn_counter_offsets[0]));
982 else if (cca)
983 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
984
985 rcu_assign_pointer(link->u.ap.probe_resp, new);
986 if (old)
987 kfree_rcu(old, rcu_head);
988
989 return 0;
990}
991
992static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
993 struct cfg80211_fils_discovery *params,
994 struct ieee80211_link_data *link,
995 struct ieee80211_bss_conf *link_conf,
996 u64 *changed)
997{
998 struct fils_discovery_data *new, *old = NULL;
999 struct ieee80211_fils_discovery *fd;
1000
1001 if (!params->update)
1002 return 0;
1003
1004 fd = &link_conf->fils_discovery;
1005 fd->min_interval = params->min_interval;
1006 fd->max_interval = params->max_interval;
1007
1008 old = sdata_dereference(link->u.ap.fils_discovery, sdata);
1009 if (old)
1010 kfree_rcu(old, rcu_head);
1011
1012 if (params->tmpl && params->tmpl_len) {
1013 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1014 if (!new)
1015 return -ENOMEM;
1016 new->len = params->tmpl_len;
1017 memcpy(new->data, params->tmpl, params->tmpl_len);
1018 rcu_assign_pointer(link->u.ap.fils_discovery, new);
1019 } else {
1020 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1021 }
1022
1023 *changed |= BSS_CHANGED_FILS_DISCOVERY;
1024 return 0;
1025}
1026
1027static int
1028ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
1029 struct cfg80211_unsol_bcast_probe_resp *params,
1030 struct ieee80211_link_data *link,
1031 struct ieee80211_bss_conf *link_conf,
1032 u64 *changed)
1033{
1034 struct unsol_bcast_probe_resp_data *new, *old = NULL;
1035
1036 if (!params->update)
1037 return 0;
1038
1039 link_conf->unsol_bcast_probe_resp_interval = params->interval;
1040
1041 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
1042 if (old)
1043 kfree_rcu(old, rcu_head);
1044
1045 if (params->tmpl && params->tmpl_len) {
1046 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1047 if (!new)
1048 return -ENOMEM;
1049 new->len = params->tmpl_len;
1050 memcpy(new->data, params->tmpl, params->tmpl_len);
1051 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
1052 } else {
1053 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1054 }
1055
1056 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1057 return 0;
1058}
1059
1060static int ieee80211_set_ftm_responder_params(
1061 struct ieee80211_sub_if_data *sdata,
1062 const u8 *lci, size_t lci_len,
1063 const u8 *civicloc, size_t civicloc_len,
1064 struct ieee80211_bss_conf *link_conf)
1065{
1066 struct ieee80211_ftm_responder_params *new, *old;
1067 u8 *pos;
1068 int len;
1069
1070 if (!lci_len && !civicloc_len)
1071 return 0;
1072
1073 old = link_conf->ftmr_params;
1074 len = lci_len + civicloc_len;
1075
1076 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
1077 if (!new)
1078 return -ENOMEM;
1079
1080 pos = (u8 *)(new + 1);
1081 if (lci_len) {
1082 new->lci_len = lci_len;
1083 new->lci = pos;
1084 memcpy(pos, lci, lci_len);
1085 pos += lci_len;
1086 }
1087
1088 if (civicloc_len) {
1089 new->civicloc_len = civicloc_len;
1090 new->civicloc = pos;
1091 memcpy(pos, civicloc, civicloc_len);
1092 pos += civicloc_len;
1093 }
1094
1095 link_conf->ftmr_params = new;
1096 kfree(old);
1097
1098 return 0;
1099}
1100
1101static int
1102ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
1103 struct cfg80211_mbssid_elems *src)
1104{
1105 int i, offset = 0;
1106
1107 dst->cnt = src->cnt;
1108 for (i = 0; i < src->cnt; i++) {
1109 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1110 dst->elem[i].len = src->elem[i].len;
1111 dst->elem[i].data = pos + offset;
1112 offset += dst->elem[i].len;
1113 }
1114
1115 return offset;
1116}
1117
1118static int
1119ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst,
1120 struct cfg80211_rnr_elems *src)
1121{
1122 int i, offset = 0;
1123
1124 for (i = 0; i < src->cnt; i++) {
1125 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1126 dst->elem[i].len = src->elem[i].len;
1127 dst->elem[i].data = pos + offset;
1128 offset += dst->elem[i].len;
1129 }
1130 dst->cnt = src->cnt;
1131
1132 return offset;
1133}
1134
1135static int
1136ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1137 struct ieee80211_link_data *link,
1138 struct cfg80211_beacon_data *params,
1139 const struct ieee80211_csa_settings *csa,
1140 const struct ieee80211_color_change_settings *cca,
1141 u64 *changed)
1142{
1143 struct cfg80211_mbssid_elems *mbssid = NULL;
1144 struct cfg80211_rnr_elems *rnr = NULL;
1145 struct beacon_data *new, *old;
1146 int new_head_len, new_tail_len;
1147 int size, err;
1148 u64 _changed = BSS_CHANGED_BEACON;
1149 struct ieee80211_bss_conf *link_conf = link->conf;
1150
1151 old = sdata_dereference(link->u.ap.beacon, sdata);
1152
1153 /* Need to have a beacon head if we don't have one yet */
1154 if (!params->head && !old)
1155 return -EINVAL;
1156
1157 /* new or old head? */
1158 if (params->head)
1159 new_head_len = params->head_len;
1160 else
1161 new_head_len = old->head_len;
1162
1163 /* new or old tail? */
1164 if (params->tail || !old)
1165 /* params->tail_len will be zero for !params->tail */
1166 new_tail_len = params->tail_len;
1167 else
1168 new_tail_len = old->tail_len;
1169
1170 size = sizeof(*new) + new_head_len + new_tail_len;
1171
1172 /* new or old multiple BSSID elements? */
1173 if (params->mbssid_ies) {
1174 mbssid = params->mbssid_ies;
1175 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1176 if (params->rnr_ies) {
1177 rnr = params->rnr_ies;
1178 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1179 }
1180 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1181 mbssid->cnt);
1182 } else if (old && old->mbssid_ies) {
1183 mbssid = old->mbssid_ies;
1184 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1185 if (old && old->rnr_ies) {
1186 rnr = old->rnr_ies;
1187 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1188 }
1189 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1190 mbssid->cnt);
1191 }
1192
1193 new = kzalloc(size, GFP_KERNEL);
1194 if (!new)
1195 return -ENOMEM;
1196
1197 /* start filling the new info now */
1198
1199 /*
1200 * pointers go into the block we allocated,
1201 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies
1202 */
1203 new->head = ((u8 *) new) + sizeof(*new);
1204 new->tail = new->head + new_head_len;
1205 new->head_len = new_head_len;
1206 new->tail_len = new_tail_len;
1207 /* copy in optional mbssid_ies */
1208 if (mbssid) {
1209 u8 *pos = new->tail + new->tail_len;
1210
1211 new->mbssid_ies = (void *)pos;
1212 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1213 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies,
1214 mbssid);
1215 if (rnr) {
1216 new->rnr_ies = (void *)pos;
1217 pos += struct_size(new->rnr_ies, elem, rnr->cnt);
1218 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr);
1219 }
1220 /* update bssid_indicator */
1221 link_conf->bssid_indicator =
1222 ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1223 }
1224
1225 if (csa) {
1226 new->cntdwn_current_counter = csa->count;
1227 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1228 csa->n_counter_offsets_beacon *
1229 sizeof(new->cntdwn_counter_offsets[0]));
1230 } else if (cca) {
1231 new->cntdwn_current_counter = cca->count;
1232 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1233 }
1234
1235 /* copy in head */
1236 if (params->head)
1237 memcpy(new->head, params->head, new_head_len);
1238 else
1239 memcpy(new->head, old->head, new_head_len);
1240
1241 /* copy in optional tail */
1242 if (params->tail)
1243 memcpy(new->tail, params->tail, new_tail_len);
1244 else
1245 if (old)
1246 memcpy(new->tail, old->tail, new_tail_len);
1247
1248 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1249 params->probe_resp_len, csa, cca, link);
1250 if (err < 0) {
1251 kfree(new);
1252 return err;
1253 }
1254 if (err == 0)
1255 _changed |= BSS_CHANGED_AP_PROBE_RESP;
1256
1257 if (params->ftm_responder != -1) {
1258 link_conf->ftm_responder = params->ftm_responder;
1259 err = ieee80211_set_ftm_responder_params(sdata,
1260 params->lci,
1261 params->lci_len,
1262 params->civicloc,
1263 params->civicloc_len,
1264 link_conf);
1265
1266 if (err < 0) {
1267 kfree(new);
1268 return err;
1269 }
1270
1271 _changed |= BSS_CHANGED_FTM_RESPONDER;
1272 }
1273
1274 rcu_assign_pointer(link->u.ap.beacon, new);
1275 sdata->u.ap.active = true;
1276
1277 if (old)
1278 kfree_rcu(old, rcu_head);
1279
1280 *changed |= _changed;
1281 return 0;
1282}
1283
1284static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata)
1285{
1286 struct ieee80211_link_data *link;
1287 u8 link_id, num = 0;
1288
1289 if (sdata->vif.type != NL80211_IFTYPE_AP &&
1290 sdata->vif.type != NL80211_IFTYPE_P2P_GO)
1291 return num;
1292
1293 /* non-MLO mode of operation also uses link_id 0 in sdata so it is
1294 * safe to directly proceed with the below loop
1295 */
1296 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
1297 link = sdata_dereference(sdata->link[link_id], sdata);
1298 if (!link)
1299 continue;
1300
1301 if (sdata_dereference(link->u.ap.beacon, sdata))
1302 num++;
1303 }
1304
1305 return num;
1306}
1307
1308static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1309 struct cfg80211_ap_settings *params)
1310{
1311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1312 struct ieee80211_local *local = sdata->local;
1313 struct beacon_data *old;
1314 struct ieee80211_sub_if_data *vlan;
1315 u64 changed = BSS_CHANGED_BEACON_INT |
1316 BSS_CHANGED_BEACON_ENABLED |
1317 BSS_CHANGED_BEACON |
1318 BSS_CHANGED_P2P_PS |
1319 BSS_CHANGED_TXPOWER |
1320 BSS_CHANGED_TWT;
1321 int i, err;
1322 int prev_beacon_int;
1323 unsigned int link_id = params->beacon.link_id;
1324 struct ieee80211_link_data *link;
1325 struct ieee80211_bss_conf *link_conf;
1326 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
1327
1328 lockdep_assert_wiphy(local->hw.wiphy);
1329
1330 link = sdata_dereference(sdata->link[link_id], sdata);
1331 if (!link)
1332 return -ENOLINK;
1333
1334 link_conf = link->conf;
1335
1336 old = sdata_dereference(link->u.ap.beacon, sdata);
1337 if (old)
1338 return -EALREADY;
1339
1340 link->smps_mode = IEEE80211_SMPS_OFF;
1341
1342 link->needed_rx_chains = sdata->local->rx_chains;
1343
1344 prev_beacon_int = link_conf->beacon_int;
1345 link_conf->beacon_int = params->beacon_interval;
1346
1347 if (params->ht_cap)
1348 link_conf->ht_ldpc =
1349 params->ht_cap->cap_info &
1350 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING);
1351
1352 if (params->vht_cap) {
1353 link_conf->vht_ldpc =
1354 params->vht_cap->vht_cap_info &
1355 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC);
1356 link_conf->vht_su_beamformer =
1357 params->vht_cap->vht_cap_info &
1358 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
1359 link_conf->vht_su_beamformee =
1360 params->vht_cap->vht_cap_info &
1361 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
1362 link_conf->vht_mu_beamformer =
1363 params->vht_cap->vht_cap_info &
1364 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
1365 link_conf->vht_mu_beamformee =
1366 params->vht_cap->vht_cap_info &
1367 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
1368 }
1369
1370 if (params->he_cap && params->he_oper) {
1371 link_conf->he_support = true;
1372 link_conf->htc_trig_based_pkt_ext =
1373 le32_get_bits(params->he_oper->he_oper_params,
1374 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1375 link_conf->frame_time_rts_th =
1376 le32_get_bits(params->he_oper->he_oper_params,
1377 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1378 changed |= BSS_CHANGED_HE_OBSS_PD;
1379
1380 if (params->beacon.he_bss_color.enabled)
1381 changed |= BSS_CHANGED_HE_BSS_COLOR;
1382 }
1383
1384 if (params->he_cap) {
1385 link_conf->he_ldpc =
1386 params->he_cap->phy_cap_info[1] &
1387 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
1388 link_conf->he_su_beamformer =
1389 params->he_cap->phy_cap_info[3] &
1390 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
1391 link_conf->he_su_beamformee =
1392 params->he_cap->phy_cap_info[4] &
1393 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
1394 link_conf->he_mu_beamformer =
1395 params->he_cap->phy_cap_info[4] &
1396 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
1397 link_conf->he_full_ul_mumimo =
1398 params->he_cap->phy_cap_info[2] &
1399 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
1400 }
1401
1402 if (params->eht_cap) {
1403 if (!link_conf->he_support)
1404 return -EOPNOTSUPP;
1405
1406 link_conf->eht_support = true;
1407
1408 link_conf->eht_su_beamformer =
1409 params->eht_cap->fixed.phy_cap_info[0] &
1410 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER;
1411 link_conf->eht_su_beamformee =
1412 params->eht_cap->fixed.phy_cap_info[0] &
1413 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
1414 link_conf->eht_mu_beamformer =
1415 params->eht_cap->fixed.phy_cap_info[7] &
1416 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
1417 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
1418 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ);
1419 link_conf->eht_80mhz_full_bw_ul_mumimo =
1420 params->eht_cap->fixed.phy_cap_info[7] &
1421 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
1422 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
1423 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ);
1424 link_conf->eht_disable_mcs15 =
1425 u8_get_bits(params->eht_oper->params,
1426 IEEE80211_EHT_OPER_MCS15_DISABLE);
1427 } else {
1428 link_conf->eht_su_beamformer = false;
1429 link_conf->eht_su_beamformee = false;
1430 link_conf->eht_mu_beamformer = false;
1431 }
1432
1433 if (sdata->vif.type == NL80211_IFTYPE_AP &&
1434 params->mbssid_config.tx_wdev) {
1435 err = ieee80211_set_ap_mbssid_options(sdata,
1436 &params->mbssid_config,
1437 link_conf);
1438 if (err)
1439 return err;
1440 }
1441
1442 err = ieee80211_link_use_channel(link, &chanreq,
1443 IEEE80211_CHANCTX_SHARED);
1444 if (!err)
1445 ieee80211_link_copy_chanctx_to_vlans(link, false);
1446 if (err) {
1447 link_conf->beacon_int = prev_beacon_int;
1448 return err;
1449 }
1450
1451 /*
1452 * Apply control port protocol, this allows us to
1453 * not encrypt dynamic WEP control frames.
1454 */
1455 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1456 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1457 sdata->control_port_over_nl80211 =
1458 params->crypto.control_port_over_nl80211;
1459 sdata->control_port_no_preauth =
1460 params->crypto.control_port_no_preauth;
1461
1462 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1463 vlan->control_port_protocol =
1464 params->crypto.control_port_ethertype;
1465 vlan->control_port_no_encrypt =
1466 params->crypto.control_port_no_encrypt;
1467 vlan->control_port_over_nl80211 =
1468 params->crypto.control_port_over_nl80211;
1469 vlan->control_port_no_preauth =
1470 params->crypto.control_port_no_preauth;
1471 }
1472
1473 link_conf->dtim_period = params->dtim_period;
1474 link_conf->enable_beacon = true;
1475 link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1476 link_conf->twt_responder = params->twt_responder;
1477 link_conf->he_obss_pd = params->he_obss_pd;
1478 link_conf->he_bss_color = params->beacon.he_bss_color;
1479 sdata->vif.cfg.s1g = params->chandef.chan->band ==
1480 NL80211_BAND_S1GHZ;
1481
1482 sdata->vif.cfg.ssid_len = params->ssid_len;
1483 if (params->ssid_len)
1484 memcpy(sdata->vif.cfg.ssid, params->ssid,
1485 params->ssid_len);
1486 link_conf->hidden_ssid =
1487 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1488
1489 memset(&link_conf->p2p_noa_attr, 0,
1490 sizeof(link_conf->p2p_noa_attr));
1491 link_conf->p2p_noa_attr.oppps_ctwindow =
1492 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1493 if (params->p2p_opp_ps)
1494 link_conf->p2p_noa_attr.oppps_ctwindow |=
1495 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1496
1497 sdata->beacon_rate_set = false;
1498 if (wiphy_ext_feature_isset(local->hw.wiphy,
1499 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1500 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1501 sdata->beacon_rateidx_mask[i] =
1502 params->beacon_rate.control[i].legacy;
1503 if (sdata->beacon_rateidx_mask[i])
1504 sdata->beacon_rate_set = true;
1505 }
1506 }
1507
1508 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1509 link_conf->beacon_tx_rate = params->beacon_rate;
1510
1511 err = ieee80211_assign_beacon(sdata, link, &params->beacon, NULL, NULL,
1512 &changed);
1513 if (err < 0)
1514 goto error;
1515
1516 err = ieee80211_set_fils_discovery(sdata, &params->fils_discovery,
1517 link, link_conf, &changed);
1518 if (err < 0)
1519 goto error;
1520
1521 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1522 &params->unsol_bcast_probe_resp,
1523 link, link_conf, &changed);
1524 if (err < 0)
1525 goto error;
1526
1527 err = drv_start_ap(sdata->local, sdata, link_conf);
1528 if (err) {
1529 old = sdata_dereference(link->u.ap.beacon, sdata);
1530
1531 if (old)
1532 kfree_rcu(old, rcu_head);
1533 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1534
1535 if (ieee80211_num_beaconing_links(sdata) == 0)
1536 sdata->u.ap.active = false;
1537
1538 goto error;
1539 }
1540
1541 ieee80211_recalc_dtim(local, sdata);
1542 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1543 ieee80211_link_info_change_notify(sdata, link, changed);
1544
1545 if (ieee80211_num_beaconing_links(sdata) <= 1)
1546 netif_carrier_on(dev);
1547
1548 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1549 netif_carrier_on(vlan->dev);
1550
1551 return 0;
1552
1553error:
1554 ieee80211_link_release_channel(link);
1555
1556 return err;
1557}
1558
1559static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1560 struct cfg80211_ap_update *params)
1561
1562{
1563 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1564 struct ieee80211_link_data *link;
1565 struct cfg80211_beacon_data *beacon = &params->beacon;
1566 struct beacon_data *old;
1567 int err;
1568 struct ieee80211_bss_conf *link_conf;
1569 u64 changed = 0;
1570
1571 lockdep_assert_wiphy(wiphy);
1572
1573 link = sdata_dereference(sdata->link[beacon->link_id], sdata);
1574 if (!link)
1575 return -ENOLINK;
1576
1577 link_conf = link->conf;
1578
1579 /* don't allow changing the beacon while a countdown is in place - offset
1580 * of channel switch counter may change
1581 */
1582 if (link_conf->csa_active || link_conf->color_change_active)
1583 return -EBUSY;
1584
1585 old = sdata_dereference(link->u.ap.beacon, sdata);
1586 if (!old)
1587 return -ENOENT;
1588
1589 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL,
1590 &changed);
1591 if (err < 0)
1592 return err;
1593
1594 err = ieee80211_set_fils_discovery(sdata, &params->fils_discovery,
1595 link, link_conf, &changed);
1596 if (err < 0)
1597 return err;
1598
1599 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1600 &params->unsol_bcast_probe_resp,
1601 link, link_conf, &changed);
1602 if (err < 0)
1603 return err;
1604
1605 if (beacon->he_bss_color_valid &&
1606 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1607 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled;
1608 changed |= BSS_CHANGED_HE_BSS_COLOR;
1609 }
1610
1611 ieee80211_link_info_change_notify(sdata, link, changed);
1612 return 0;
1613}
1614
1615static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1616{
1617 if (!link->u.ap.next_beacon)
1618 return;
1619
1620 kfree(link->u.ap.next_beacon->mbssid_ies);
1621 kfree(link->u.ap.next_beacon->rnr_ies);
1622 kfree(link->u.ap.next_beacon);
1623 link->u.ap.next_beacon = NULL;
1624}
1625
1626static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1627 unsigned int link_id)
1628{
1629 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1630 struct ieee80211_sub_if_data *vlan;
1631 struct ieee80211_local *local = sdata->local;
1632 struct beacon_data *old_beacon;
1633 struct probe_resp *old_probe_resp;
1634 struct fils_discovery_data *old_fils_discovery;
1635 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1636 struct cfg80211_chan_def chandef;
1637 struct ieee80211_link_data *link =
1638 sdata_dereference(sdata->link[link_id], sdata);
1639 struct ieee80211_bss_conf *link_conf = link->conf;
1640 LIST_HEAD(keys);
1641
1642 lockdep_assert_wiphy(local->hw.wiphy);
1643
1644 old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1645 if (!old_beacon)
1646 return -ENOENT;
1647 old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1648 sdata);
1649 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1650 sdata);
1651 old_unsol_bcast_probe_resp =
1652 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1653 sdata);
1654
1655 /* abort any running channel switch or color change */
1656 link_conf->csa_active = false;
1657 link_conf->color_change_active = false;
1658 ieee80211_vif_unblock_queues_csa(sdata);
1659
1660 ieee80211_free_next_beacon(link);
1661
1662 /* turn off carrier for this interface and dependent VLANs */
1663 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1664 netif_carrier_off(vlan->dev);
1665
1666 if (ieee80211_num_beaconing_links(sdata) <= 1) {
1667 netif_carrier_off(dev);
1668 sdata->u.ap.active = false;
1669 }
1670
1671 /* remove beacon and probe response */
1672 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1673 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1674 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1675 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1676 kfree_rcu(old_beacon, rcu_head);
1677 if (old_probe_resp)
1678 kfree_rcu(old_probe_resp, rcu_head);
1679 if (old_fils_discovery)
1680 kfree_rcu(old_fils_discovery, rcu_head);
1681 if (old_unsol_bcast_probe_resp)
1682 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1683
1684 kfree(link_conf->ftmr_params);
1685 link_conf->ftmr_params = NULL;
1686
1687 link_conf->bssid_index = 0;
1688 link_conf->nontransmitted = false;
1689 link_conf->ema_ap = false;
1690 link_conf->bssid_indicator = 0;
1691
1692 __sta_info_flush(sdata, true, link_id, NULL);
1693
1694 ieee80211_remove_link_keys(link, &keys);
1695 if (!list_empty(&keys)) {
1696 synchronize_net();
1697 ieee80211_free_key_list(local, &keys);
1698 }
1699
1700 ieee80211_stop_mbssid(sdata);
1701 RCU_INIT_POINTER(link_conf->tx_bss_conf, NULL);
1702
1703 link_conf->enable_beacon = false;
1704 sdata->beacon_rate_set = false;
1705 sdata->vif.cfg.ssid_len = 0;
1706 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1707 ieee80211_link_info_change_notify(sdata, link,
1708 BSS_CHANGED_BEACON_ENABLED);
1709
1710 if (sdata->wdev.links[link_id].cac_started) {
1711 chandef = link_conf->chanreq.oper;
1712 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
1713 cfg80211_cac_event(sdata->dev, &chandef,
1714 NL80211_RADAR_CAC_ABORTED,
1715 GFP_KERNEL, link_id);
1716 }
1717
1718 drv_stop_ap(sdata->local, sdata, link_conf);
1719
1720 /* free all potentially still buffered bcast frames */
1721 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1722 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1723
1724 ieee80211_link_copy_chanctx_to_vlans(link, true);
1725 ieee80211_link_release_channel(link);
1726
1727 return 0;
1728}
1729
1730static int sta_apply_auth_flags(struct ieee80211_local *local,
1731 struct sta_info *sta,
1732 u32 mask, u32 set)
1733{
1734 int ret;
1735
1736 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1737 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1738 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1739 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1740 if (ret)
1741 return ret;
1742 }
1743
1744 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1745 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1746 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1747 /*
1748 * When peer becomes associated, init rate control as
1749 * well. Some drivers require rate control initialized
1750 * before drv_sta_state() is called.
1751 */
1752 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1753 rate_control_rate_init_all_links(sta);
1754
1755 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1756 if (ret)
1757 return ret;
1758 }
1759
1760 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1761 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1762 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1763 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1764 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1765 else
1766 ret = 0;
1767 if (ret)
1768 return ret;
1769 }
1770
1771 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1772 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1773 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1774 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1775 if (ret)
1776 return ret;
1777 }
1778
1779 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1780 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1781 test_sta_flag(sta, WLAN_STA_AUTH)) {
1782 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1783 if (ret)
1784 return ret;
1785 }
1786
1787 return 0;
1788}
1789
1790static void sta_apply_mesh_params(struct ieee80211_local *local,
1791 struct sta_info *sta,
1792 struct station_parameters *params)
1793{
1794#ifdef CONFIG_MAC80211_MESH
1795 struct ieee80211_sub_if_data *sdata = sta->sdata;
1796 u64 changed = 0;
1797
1798 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1799 switch (params->plink_state) {
1800 case NL80211_PLINK_ESTAB:
1801 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1802 changed = mesh_plink_inc_estab_count(sdata);
1803 sta->mesh->plink_state = params->plink_state;
1804 sta->mesh->aid = params->peer_aid;
1805
1806 ieee80211_mps_sta_status_update(sta);
1807 changed |= ieee80211_mps_set_sta_local_pm(sta,
1808 sdata->u.mesh.mshcfg.power_mode);
1809
1810 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1811 /* init at low value */
1812 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1813
1814 break;
1815 case NL80211_PLINK_LISTEN:
1816 case NL80211_PLINK_BLOCKED:
1817 case NL80211_PLINK_OPN_SNT:
1818 case NL80211_PLINK_OPN_RCVD:
1819 case NL80211_PLINK_CNF_RCVD:
1820 case NL80211_PLINK_HOLDING:
1821 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1822 changed = mesh_plink_dec_estab_count(sdata);
1823 sta->mesh->plink_state = params->plink_state;
1824
1825 ieee80211_mps_sta_status_update(sta);
1826 changed |= ieee80211_mps_set_sta_local_pm(sta,
1827 NL80211_MESH_POWER_UNKNOWN);
1828 break;
1829 default:
1830 /* nothing */
1831 break;
1832 }
1833 }
1834
1835 switch (params->plink_action) {
1836 case NL80211_PLINK_ACTION_NO_ACTION:
1837 /* nothing */
1838 break;
1839 case NL80211_PLINK_ACTION_OPEN:
1840 changed |= mesh_plink_open(sta);
1841 break;
1842 case NL80211_PLINK_ACTION_BLOCK:
1843 changed |= mesh_plink_block(sta);
1844 break;
1845 }
1846
1847 if (params->local_pm)
1848 changed |= ieee80211_mps_set_sta_local_pm(sta,
1849 params->local_pm);
1850
1851 ieee80211_mbss_info_change_notify(sdata, changed);
1852#endif
1853}
1854
1855enum sta_link_apply_mode {
1856 STA_LINK_MODE_NEW,
1857 STA_LINK_MODE_STA_MODIFY,
1858 STA_LINK_MODE_LINK_MODIFY,
1859};
1860
1861static int sta_link_apply_parameters(struct ieee80211_local *local,
1862 struct sta_info *sta,
1863 enum sta_link_apply_mode mode,
1864 struct link_station_parameters *params)
1865{
1866 struct ieee80211_supported_band *sband;
1867 struct ieee80211_sub_if_data *sdata = sta->sdata;
1868 u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1869 struct ieee80211_link_data *link =
1870 sdata_dereference(sdata->link[link_id], sdata);
1871 struct link_sta_info *link_sta =
1872 rcu_dereference_protected(sta->link[link_id],
1873 lockdep_is_held(&local->hw.wiphy->mtx));
1874 bool changes = params->link_mac ||
1875 params->txpwr_set ||
1876 params->supported_rates_len ||
1877 params->ht_capa ||
1878 params->vht_capa ||
1879 params->he_capa ||
1880 params->eht_capa ||
1881 params->opmode_notif_used;
1882
1883 switch (mode) {
1884 case STA_LINK_MODE_NEW:
1885 if (!params->link_mac)
1886 return -EINVAL;
1887 break;
1888 case STA_LINK_MODE_LINK_MODIFY:
1889 break;
1890 case STA_LINK_MODE_STA_MODIFY:
1891 if (params->link_id >= 0)
1892 break;
1893 if (!changes)
1894 return 0;
1895 break;
1896 }
1897
1898 if (!link || !link_sta)
1899 return -EINVAL;
1900
1901 sband = ieee80211_get_link_sband(link);
1902 if (!sband)
1903 return -EINVAL;
1904
1905 if (params->link_mac) {
1906 if (mode == STA_LINK_MODE_NEW) {
1907 memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1908 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1909 } else if (!ether_addr_equal(link_sta->addr,
1910 params->link_mac)) {
1911 return -EINVAL;
1912 }
1913 }
1914
1915 if (params->txpwr_set) {
1916 int ret;
1917
1918 link_sta->pub->txpwr.type = params->txpwr.type;
1919 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1920 link_sta->pub->txpwr.power = params->txpwr.power;
1921 ret = drv_sta_set_txpwr(local, sdata, sta);
1922 if (ret)
1923 return ret;
1924 }
1925
1926 if (params->supported_rates &&
1927 params->supported_rates_len &&
1928 !ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
1929 sband, params->supported_rates,
1930 params->supported_rates_len,
1931 &link_sta->pub->supp_rates[sband->band]))
1932 return -EINVAL;
1933
1934 if (params->ht_capa)
1935 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1936 params->ht_capa, link_sta);
1937
1938 /* VHT can override some HT caps such as the A-MSDU max length */
1939 if (params->vht_capa)
1940 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1941 params->vht_capa, NULL,
1942 link_sta);
1943
1944 if (params->he_capa)
1945 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1946 (void *)params->he_capa,
1947 params->he_capa_len,
1948 (void *)params->he_6ghz_capa,
1949 link_sta);
1950
1951 if (params->he_capa && params->eht_capa)
1952 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1953 (u8 *)params->he_capa,
1954 params->he_capa_len,
1955 params->eht_capa,
1956 params->eht_capa_len,
1957 link_sta);
1958
1959 ieee80211_sta_init_nss(link_sta);
1960
1961 if (params->opmode_notif_used) {
1962 enum nl80211_chan_width width = link->conf->chanreq.oper.width;
1963
1964 switch (width) {
1965 case NL80211_CHAN_WIDTH_20:
1966 case NL80211_CHAN_WIDTH_40:
1967 case NL80211_CHAN_WIDTH_80:
1968 case NL80211_CHAN_WIDTH_160:
1969 case NL80211_CHAN_WIDTH_80P80:
1970 case NL80211_CHAN_WIDTH_320: /* not VHT, allowed for HE/EHT */
1971 break;
1972 default:
1973 return -EINVAL;
1974 }
1975
1976 /* returned value is only needed for rc update, but the
1977 * rc isn't initialized here yet, so ignore it
1978 */
1979 __ieee80211_vht_handle_opmode(sdata, link_sta,
1980 params->opmode_notif,
1981 sband->band);
1982 }
1983
1984 return 0;
1985}
1986
1987static int sta_apply_parameters(struct ieee80211_local *local,
1988 struct sta_info *sta,
1989 struct station_parameters *params)
1990{
1991 struct ieee80211_sub_if_data *sdata = sta->sdata;
1992 u32 mask, set;
1993 int ret = 0;
1994
1995 mask = params->sta_flags_mask;
1996 set = params->sta_flags_set;
1997
1998 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1999 /*
2000 * In mesh mode, ASSOCIATED isn't part of the nl80211
2001 * API but must follow AUTHENTICATED for driver state.
2002 */
2003 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
2004 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
2005 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
2006 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
2007 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2008 /*
2009 * TDLS -- everything follows authorized, but
2010 * only becoming authorized is possible, not
2011 * going back
2012 */
2013 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2014 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2015 BIT(NL80211_STA_FLAG_ASSOCIATED);
2016 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2017 BIT(NL80211_STA_FLAG_ASSOCIATED);
2018 }
2019 }
2020
2021 if (mask & BIT(NL80211_STA_FLAG_WME) &&
2022 local->hw.queues >= IEEE80211_NUM_ACS)
2023 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
2024
2025 /* auth flags will be set later for TDLS,
2026 * and for unassociated stations that move to associated */
2027 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2028 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
2029 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
2030 ret = sta_apply_auth_flags(local, sta, mask, set);
2031 if (ret)
2032 return ret;
2033 }
2034
2035 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
2036 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
2037 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
2038 else
2039 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
2040 }
2041
2042 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
2043 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
2044 if (set & BIT(NL80211_STA_FLAG_MFP))
2045 set_sta_flag(sta, WLAN_STA_MFP);
2046 else
2047 clear_sta_flag(sta, WLAN_STA_MFP);
2048 }
2049
2050 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
2051 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2052 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
2053 else
2054 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
2055 }
2056
2057 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU))
2058 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU);
2059
2060 /* mark TDLS channel switch support, if the AP allows it */
2061 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2062 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
2063 params->ext_capab_len >= 4 &&
2064 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
2065 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
2066
2067 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2068 !sdata->u.mgd.tdls_wider_bw_prohibited &&
2069 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
2070 params->ext_capab_len >= 8 &&
2071 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
2072 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
2073
2074 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
2075 sta->sta.uapsd_queues = params->uapsd_queues;
2076 sta->sta.max_sp = params->max_sp;
2077 }
2078
2079 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
2080 params->ext_capab_len);
2081
2082 /*
2083 * cfg80211 validates this (1-2007) and allows setting the AID
2084 * only when creating a new station entry
2085 */
2086 if (params->aid)
2087 sta->sta.aid = params->aid;
2088
2089 /*
2090 * Some of the following updates would be racy if called on an
2091 * existing station, via ieee80211_change_station(). However,
2092 * all such changes are rejected by cfg80211 except for updates
2093 * changing the supported rates on an existing but not yet used
2094 * TDLS peer.
2095 */
2096
2097 if (params->listen_interval >= 0)
2098 sta->listen_interval = params->listen_interval;
2099
2100 if (params->eml_cap_present)
2101 sta->sta.eml_cap = params->eml_cap;
2102
2103 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY,
2104 &params->link_sta_params);
2105 if (ret)
2106 return ret;
2107
2108 if (params->support_p2p_ps >= 0)
2109 sta->sta.support_p2p_ps = params->support_p2p_ps;
2110
2111 if (ieee80211_vif_is_mesh(&sdata->vif))
2112 sta_apply_mesh_params(local, sta, params);
2113
2114 if (params->airtime_weight)
2115 sta->airtime_weight = params->airtime_weight;
2116
2117 /* set the STA state after all sta info from usermode has been set */
2118 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
2119 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
2120 ret = sta_apply_auth_flags(local, sta, mask, set);
2121 if (ret)
2122 return ret;
2123 }
2124
2125 /* Mark the STA as MLO if MLD MAC address is available */
2126 if (params->link_sta_params.mld_mac)
2127 sta->sta.mlo = true;
2128
2129 return 0;
2130}
2131
2132static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2133 const u8 *mac,
2134 struct station_parameters *params)
2135{
2136 struct ieee80211_local *local = wiphy_priv(wiphy);
2137 struct sta_info *sta;
2138 struct ieee80211_sub_if_data *sdata;
2139 int err;
2140
2141 lockdep_assert_wiphy(local->hw.wiphy);
2142
2143 if (params->vlan) {
2144 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2145
2146 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2147 sdata->vif.type != NL80211_IFTYPE_AP)
2148 return -EINVAL;
2149 } else
2150 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2151
2152 if (ether_addr_equal(mac, sdata->vif.addr))
2153 return -EINVAL;
2154
2155 if (!is_valid_ether_addr(mac))
2156 return -EINVAL;
2157
2158 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
2159 sdata->vif.type == NL80211_IFTYPE_STATION &&
2160 !sdata->u.mgd.associated)
2161 return -EINVAL;
2162
2163 /*
2164 * If we have a link ID, it can be a non-MLO station on an AP MLD,
2165 * but we need to have a link_mac in that case as well, so use the
2166 * STA's MAC address in that case.
2167 */
2168 if (params->link_sta_params.link_id >= 0)
2169 sta = sta_info_alloc_with_link(sdata, mac,
2170 params->link_sta_params.link_id,
2171 params->link_sta_params.link_mac ?: mac,
2172 GFP_KERNEL);
2173 else
2174 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
2175
2176 if (!sta)
2177 return -ENOMEM;
2178
2179 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2180 sta->sta.tdls = true;
2181
2182 /* Though the mutex is not needed here (since the station is not
2183 * visible yet), sta_apply_parameters (and inner functions) require
2184 * the mutex due to other paths.
2185 */
2186 err = sta_apply_parameters(local, sta, params);
2187 if (err) {
2188 sta_info_free(local, sta);
2189 return err;
2190 }
2191
2192 /*
2193 * for TDLS and for unassociated station, rate control should be
2194 * initialized only when rates are known and station is marked
2195 * authorized/associated
2196 */
2197 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2198 test_sta_flag(sta, WLAN_STA_ASSOC))
2199 rate_control_rate_init_all_links(sta);
2200
2201 return sta_info_insert(sta);
2202}
2203
2204static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2205 struct station_del_parameters *params)
2206{
2207 struct ieee80211_sub_if_data *sdata;
2208
2209 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2210
2211 if (params->mac)
2212 return sta_info_destroy_addr_bss(sdata, params->mac);
2213
2214 sta_info_flush(sdata, params->link_id);
2215 return 0;
2216}
2217
2218static int ieee80211_change_station(struct wiphy *wiphy,
2219 struct net_device *dev, const u8 *mac,
2220 struct station_parameters *params)
2221{
2222 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2223 struct ieee80211_local *local = wiphy_priv(wiphy);
2224 struct sta_info *sta;
2225 struct ieee80211_sub_if_data *vlansdata;
2226 enum cfg80211_station_type statype;
2227 int err;
2228
2229 lockdep_assert_wiphy(local->hw.wiphy);
2230
2231 sta = sta_info_get_bss(sdata, mac);
2232 if (!sta)
2233 return -ENOENT;
2234
2235 switch (sdata->vif.type) {
2236 case NL80211_IFTYPE_MESH_POINT:
2237 if (sdata->u.mesh.user_mpm)
2238 statype = CFG80211_STA_MESH_PEER_USER;
2239 else
2240 statype = CFG80211_STA_MESH_PEER_KERNEL;
2241 break;
2242 case NL80211_IFTYPE_ADHOC:
2243 statype = CFG80211_STA_IBSS;
2244 break;
2245 case NL80211_IFTYPE_STATION:
2246 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2247 statype = CFG80211_STA_AP_STA;
2248 break;
2249 }
2250 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2251 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2252 else
2253 statype = CFG80211_STA_TDLS_PEER_SETUP;
2254 break;
2255 case NL80211_IFTYPE_AP:
2256 case NL80211_IFTYPE_AP_VLAN:
2257 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2258 statype = CFG80211_STA_AP_CLIENT;
2259 else
2260 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2261 break;
2262 default:
2263 return -EOPNOTSUPP;
2264 }
2265
2266 err = cfg80211_check_station_change(wiphy, params, statype);
2267 if (err)
2268 return err;
2269
2270 if (params->vlan && params->vlan != sta->sdata->dev) {
2271 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2272
2273 if (params->vlan->ieee80211_ptr->use_4addr) {
2274 if (vlansdata->u.vlan.sta)
2275 return -EBUSY;
2276
2277 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2278 __ieee80211_check_fast_rx_iface(vlansdata);
2279 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2280 }
2281
2282 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2283 sta->sdata->u.vlan.sta)
2284 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2285
2286 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2287 ieee80211_vif_dec_num_mcast(sta->sdata);
2288
2289 sta->sdata = vlansdata;
2290 ieee80211_check_fast_rx(sta);
2291 ieee80211_check_fast_xmit(sta);
2292
2293 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2294 ieee80211_vif_inc_num_mcast(sta->sdata);
2295 cfg80211_send_layer2_update(sta->sdata->dev,
2296 sta->sta.addr);
2297 }
2298 }
2299
2300 err = sta_apply_parameters(local, sta, params);
2301 if (err)
2302 return err;
2303
2304 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2305 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2306 ieee80211_recalc_ps(local);
2307 ieee80211_recalc_ps_vif(sdata);
2308 }
2309
2310 return 0;
2311}
2312
2313#ifdef CONFIG_MAC80211_MESH
2314static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2315 const u8 *dst, const u8 *next_hop)
2316{
2317 struct ieee80211_sub_if_data *sdata;
2318 struct mesh_path *mpath;
2319 struct sta_info *sta;
2320
2321 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2322
2323 rcu_read_lock();
2324 sta = sta_info_get(sdata, next_hop);
2325 if (!sta) {
2326 rcu_read_unlock();
2327 return -ENOENT;
2328 }
2329
2330 mpath = mesh_path_add(sdata, dst);
2331 if (IS_ERR(mpath)) {
2332 rcu_read_unlock();
2333 return PTR_ERR(mpath);
2334 }
2335
2336 mesh_path_fix_nexthop(mpath, sta);
2337
2338 rcu_read_unlock();
2339 return 0;
2340}
2341
2342static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2343 const u8 *dst)
2344{
2345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2346
2347 if (dst)
2348 return mesh_path_del(sdata, dst);
2349
2350 mesh_path_flush_by_iface(sdata);
2351 return 0;
2352}
2353
2354static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2355 const u8 *dst, const u8 *next_hop)
2356{
2357 struct ieee80211_sub_if_data *sdata;
2358 struct mesh_path *mpath;
2359 struct sta_info *sta;
2360
2361 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2362
2363 rcu_read_lock();
2364
2365 sta = sta_info_get(sdata, next_hop);
2366 if (!sta) {
2367 rcu_read_unlock();
2368 return -ENOENT;
2369 }
2370
2371 mpath = mesh_path_lookup(sdata, dst);
2372 if (!mpath) {
2373 rcu_read_unlock();
2374 return -ENOENT;
2375 }
2376
2377 mesh_path_fix_nexthop(mpath, sta);
2378
2379 rcu_read_unlock();
2380 return 0;
2381}
2382
2383static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2384 struct mpath_info *pinfo)
2385{
2386 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2387
2388 if (next_hop_sta)
2389 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2390 else
2391 eth_zero_addr(next_hop);
2392
2393 memset(pinfo, 0, sizeof(*pinfo));
2394
2395 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2396
2397 pinfo->filled = MPATH_INFO_FRAME_QLEN |
2398 MPATH_INFO_SN |
2399 MPATH_INFO_METRIC |
2400 MPATH_INFO_EXPTIME |
2401 MPATH_INFO_DISCOVERY_TIMEOUT |
2402 MPATH_INFO_DISCOVERY_RETRIES |
2403 MPATH_INFO_FLAGS |
2404 MPATH_INFO_HOP_COUNT |
2405 MPATH_INFO_PATH_CHANGE;
2406
2407 pinfo->frame_qlen = mpath->frame_queue.qlen;
2408 pinfo->sn = mpath->sn;
2409 pinfo->metric = mpath->metric;
2410 if (time_before(jiffies, mpath->exp_time))
2411 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2412 pinfo->discovery_timeout =
2413 jiffies_to_msecs(mpath->discovery_timeout);
2414 pinfo->discovery_retries = mpath->discovery_retries;
2415 if (mpath->flags & MESH_PATH_ACTIVE)
2416 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2417 if (mpath->flags & MESH_PATH_RESOLVING)
2418 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2419 if (mpath->flags & MESH_PATH_SN_VALID)
2420 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2421 if (mpath->flags & MESH_PATH_FIXED)
2422 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2423 if (mpath->flags & MESH_PATH_RESOLVED)
2424 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2425 pinfo->hop_count = mpath->hop_count;
2426 pinfo->path_change_count = mpath->path_change_count;
2427}
2428
2429static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2430 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2431
2432{
2433 struct ieee80211_sub_if_data *sdata;
2434 struct mesh_path *mpath;
2435
2436 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2437
2438 rcu_read_lock();
2439 mpath = mesh_path_lookup(sdata, dst);
2440 if (!mpath) {
2441 rcu_read_unlock();
2442 return -ENOENT;
2443 }
2444 memcpy(dst, mpath->dst, ETH_ALEN);
2445 mpath_set_pinfo(mpath, next_hop, pinfo);
2446 rcu_read_unlock();
2447 return 0;
2448}
2449
2450static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2451 int idx, u8 *dst, u8 *next_hop,
2452 struct mpath_info *pinfo)
2453{
2454 struct ieee80211_sub_if_data *sdata;
2455 struct mesh_path *mpath;
2456
2457 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2458
2459 rcu_read_lock();
2460 mpath = mesh_path_lookup_by_idx(sdata, idx);
2461 if (!mpath) {
2462 rcu_read_unlock();
2463 return -ENOENT;
2464 }
2465 memcpy(dst, mpath->dst, ETH_ALEN);
2466 mpath_set_pinfo(mpath, next_hop, pinfo);
2467 rcu_read_unlock();
2468 return 0;
2469}
2470
2471static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2472 struct mpath_info *pinfo)
2473{
2474 memset(pinfo, 0, sizeof(*pinfo));
2475 memcpy(mpp, mpath->mpp, ETH_ALEN);
2476
2477 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2478}
2479
2480static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2481 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2482
2483{
2484 struct ieee80211_sub_if_data *sdata;
2485 struct mesh_path *mpath;
2486
2487 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2488
2489 rcu_read_lock();
2490 mpath = mpp_path_lookup(sdata, dst);
2491 if (!mpath) {
2492 rcu_read_unlock();
2493 return -ENOENT;
2494 }
2495 memcpy(dst, mpath->dst, ETH_ALEN);
2496 mpp_set_pinfo(mpath, mpp, pinfo);
2497 rcu_read_unlock();
2498 return 0;
2499}
2500
2501static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2502 int idx, u8 *dst, u8 *mpp,
2503 struct mpath_info *pinfo)
2504{
2505 struct ieee80211_sub_if_data *sdata;
2506 struct mesh_path *mpath;
2507
2508 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2509
2510 rcu_read_lock();
2511 mpath = mpp_path_lookup_by_idx(sdata, idx);
2512 if (!mpath) {
2513 rcu_read_unlock();
2514 return -ENOENT;
2515 }
2516 memcpy(dst, mpath->dst, ETH_ALEN);
2517 mpp_set_pinfo(mpath, mpp, pinfo);
2518 rcu_read_unlock();
2519 return 0;
2520}
2521
2522static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2523 struct net_device *dev,
2524 struct mesh_config *conf)
2525{
2526 struct ieee80211_sub_if_data *sdata;
2527 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2528
2529 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2530 return 0;
2531}
2532
2533static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2534{
2535 return (mask >> (parm-1)) & 0x1;
2536}
2537
2538static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2539 const struct mesh_setup *setup)
2540{
2541 u8 *new_ie;
2542 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2543 struct ieee80211_sub_if_data, u.mesh);
2544 int i;
2545
2546 /* allocate information elements */
2547 new_ie = NULL;
2548
2549 if (setup->ie_len) {
2550 new_ie = kmemdup(setup->ie, setup->ie_len,
2551 GFP_KERNEL);
2552 if (!new_ie)
2553 return -ENOMEM;
2554 }
2555 ifmsh->ie_len = setup->ie_len;
2556 ifmsh->ie = new_ie;
2557
2558 /* now copy the rest of the setup parameters */
2559 ifmsh->mesh_id_len = setup->mesh_id_len;
2560 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2561 ifmsh->mesh_sp_id = setup->sync_method;
2562 ifmsh->mesh_pp_id = setup->path_sel_proto;
2563 ifmsh->mesh_pm_id = setup->path_metric;
2564 ifmsh->user_mpm = setup->user_mpm;
2565 ifmsh->mesh_auth_id = setup->auth_id;
2566 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2567 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2568 if (setup->is_authenticated)
2569 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2570 if (setup->is_secure)
2571 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2572
2573 /* mcast rate setting in Mesh Node */
2574 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2575 sizeof(setup->mcast_rate));
2576 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2577
2578 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2579 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2580
2581 sdata->beacon_rate_set = false;
2582 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2583 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2584 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2585 sdata->beacon_rateidx_mask[i] =
2586 setup->beacon_rate.control[i].legacy;
2587 if (sdata->beacon_rateidx_mask[i])
2588 sdata->beacon_rate_set = true;
2589 }
2590 }
2591
2592 return 0;
2593}
2594
2595static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2596 struct net_device *dev, u32 mask,
2597 const struct mesh_config *nconf)
2598{
2599 struct mesh_config *conf;
2600 struct ieee80211_sub_if_data *sdata;
2601 struct ieee80211_if_mesh *ifmsh;
2602
2603 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2604 ifmsh = &sdata->u.mesh;
2605
2606 /* Set the config options which we are interested in setting */
2607 conf = &(sdata->u.mesh.mshcfg);
2608 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2609 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2610 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2611 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2612 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2613 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2614 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2615 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2616 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2617 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2618 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2619 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2620 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2621 conf->element_ttl = nconf->element_ttl;
2622 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2623 if (ifmsh->user_mpm)
2624 return -EBUSY;
2625 conf->auto_open_plinks = nconf->auto_open_plinks;
2626 }
2627 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2628 conf->dot11MeshNbrOffsetMaxNeighbor =
2629 nconf->dot11MeshNbrOffsetMaxNeighbor;
2630 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2631 conf->dot11MeshHWMPmaxPREQretries =
2632 nconf->dot11MeshHWMPmaxPREQretries;
2633 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2634 conf->path_refresh_time = nconf->path_refresh_time;
2635 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2636 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2637 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2638 conf->dot11MeshHWMPactivePathTimeout =
2639 nconf->dot11MeshHWMPactivePathTimeout;
2640 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2641 conf->dot11MeshHWMPpreqMinInterval =
2642 nconf->dot11MeshHWMPpreqMinInterval;
2643 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2644 conf->dot11MeshHWMPperrMinInterval =
2645 nconf->dot11MeshHWMPperrMinInterval;
2646 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2647 mask))
2648 conf->dot11MeshHWMPnetDiameterTraversalTime =
2649 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2650 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2651 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2652 ieee80211_mesh_root_setup(ifmsh);
2653 }
2654 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2655 /* our current gate announcement implementation rides on root
2656 * announcements, so require this ifmsh to also be a root node
2657 * */
2658 if (nconf->dot11MeshGateAnnouncementProtocol &&
2659 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2660 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2661 ieee80211_mesh_root_setup(ifmsh);
2662 }
2663 conf->dot11MeshGateAnnouncementProtocol =
2664 nconf->dot11MeshGateAnnouncementProtocol;
2665 }
2666 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2667 conf->dot11MeshHWMPRannInterval =
2668 nconf->dot11MeshHWMPRannInterval;
2669 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2670 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2671 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2672 /* our RSSI threshold implementation is supported only for
2673 * devices that report signal in dBm.
2674 */
2675 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2676 return -EOPNOTSUPP;
2677 conf->rssi_threshold = nconf->rssi_threshold;
2678 }
2679 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2680 conf->ht_opmode = nconf->ht_opmode;
2681 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2682 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2683 BSS_CHANGED_HT);
2684 }
2685 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2686 conf->dot11MeshHWMPactivePathToRootTimeout =
2687 nconf->dot11MeshHWMPactivePathToRootTimeout;
2688 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2689 conf->dot11MeshHWMProotInterval =
2690 nconf->dot11MeshHWMProotInterval;
2691 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2692 conf->dot11MeshHWMPconfirmationInterval =
2693 nconf->dot11MeshHWMPconfirmationInterval;
2694 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2695 conf->power_mode = nconf->power_mode;
2696 ieee80211_mps_local_status_update(sdata);
2697 }
2698 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2699 conf->dot11MeshAwakeWindowDuration =
2700 nconf->dot11MeshAwakeWindowDuration;
2701 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2702 conf->plink_timeout = nconf->plink_timeout;
2703 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2704 conf->dot11MeshConnectedToMeshGate =
2705 nconf->dot11MeshConnectedToMeshGate;
2706 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2707 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2708 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2709 conf->dot11MeshConnectedToAuthServer =
2710 nconf->dot11MeshConnectedToAuthServer;
2711 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2712 return 0;
2713}
2714
2715static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2716 const struct mesh_config *conf,
2717 const struct mesh_setup *setup)
2718{
2719 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2720 struct ieee80211_chan_req chanreq = { .oper = setup->chandef };
2721 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2722 int err;
2723
2724 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2725
2726 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2727 err = copy_mesh_setup(ifmsh, setup);
2728 if (err)
2729 return err;
2730
2731 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2732
2733 /* can mesh use other SMPS modes? */
2734 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2735 sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2736
2737 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
2738 IEEE80211_CHANCTX_SHARED);
2739 if (err)
2740 return err;
2741
2742 return ieee80211_start_mesh(sdata);
2743}
2744
2745static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2746{
2747 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2748
2749 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2750
2751 ieee80211_stop_mesh(sdata);
2752 ieee80211_link_release_channel(&sdata->deflink);
2753 kfree(sdata->u.mesh.ie);
2754
2755 return 0;
2756}
2757#endif
2758
2759static int ieee80211_change_bss(struct wiphy *wiphy,
2760 struct net_device *dev,
2761 struct bss_parameters *params)
2762{
2763 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2764 struct ieee80211_link_data *link;
2765 struct ieee80211_supported_band *sband;
2766 u64 changed = 0;
2767
2768 link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2769 if (IS_ERR(link))
2770 return PTR_ERR(link);
2771
2772 if (!sdata_dereference(link->u.ap.beacon, sdata))
2773 return -ENOENT;
2774
2775 sband = ieee80211_get_link_sband(link);
2776 if (!sband)
2777 return -EINVAL;
2778
2779 if (params->basic_rates) {
2780 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
2781 wiphy->bands[sband->band],
2782 params->basic_rates,
2783 params->basic_rates_len,
2784 &link->conf->basic_rates))
2785 return -EINVAL;
2786 changed |= BSS_CHANGED_BASIC_RATES;
2787 ieee80211_check_rate_mask(link);
2788 }
2789
2790 if (params->use_cts_prot >= 0) {
2791 link->conf->use_cts_prot = params->use_cts_prot;
2792 changed |= BSS_CHANGED_ERP_CTS_PROT;
2793 }
2794 if (params->use_short_preamble >= 0) {
2795 link->conf->use_short_preamble = params->use_short_preamble;
2796 changed |= BSS_CHANGED_ERP_PREAMBLE;
2797 }
2798
2799 if (!link->conf->use_short_slot &&
2800 (sband->band == NL80211_BAND_5GHZ ||
2801 sband->band == NL80211_BAND_6GHZ)) {
2802 link->conf->use_short_slot = true;
2803 changed |= BSS_CHANGED_ERP_SLOT;
2804 }
2805
2806 if (params->use_short_slot_time >= 0) {
2807 link->conf->use_short_slot = params->use_short_slot_time;
2808 changed |= BSS_CHANGED_ERP_SLOT;
2809 }
2810
2811 if (params->ap_isolate >= 0) {
2812 if (params->ap_isolate)
2813 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2814 else
2815 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2816 ieee80211_check_fast_rx_iface(sdata);
2817 }
2818
2819 if (params->ht_opmode >= 0) {
2820 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2821 changed |= BSS_CHANGED_HT;
2822 }
2823
2824 if (params->p2p_ctwindow >= 0) {
2825 link->conf->p2p_noa_attr.oppps_ctwindow &=
2826 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2827 link->conf->p2p_noa_attr.oppps_ctwindow |=
2828 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2829 changed |= BSS_CHANGED_P2P_PS;
2830 }
2831
2832 if (params->p2p_opp_ps > 0) {
2833 link->conf->p2p_noa_attr.oppps_ctwindow |=
2834 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2835 changed |= BSS_CHANGED_P2P_PS;
2836 } else if (params->p2p_opp_ps == 0) {
2837 link->conf->p2p_noa_attr.oppps_ctwindow &=
2838 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2839 changed |= BSS_CHANGED_P2P_PS;
2840 }
2841
2842 ieee80211_link_info_change_notify(sdata, link, changed);
2843
2844 return 0;
2845}
2846
2847static int ieee80211_set_txq_params(struct wiphy *wiphy,
2848 struct net_device *dev,
2849 struct ieee80211_txq_params *params)
2850{
2851 struct ieee80211_local *local = wiphy_priv(wiphy);
2852 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2853 struct ieee80211_link_data *link =
2854 ieee80211_link_or_deflink(sdata, params->link_id, true);
2855 struct ieee80211_tx_queue_params p;
2856
2857 if (!local->ops->conf_tx)
2858 return -EOPNOTSUPP;
2859
2860 if (local->hw.queues < IEEE80211_NUM_ACS)
2861 return -EOPNOTSUPP;
2862
2863 if (IS_ERR(link))
2864 return PTR_ERR(link);
2865
2866 memset(&p, 0, sizeof(p));
2867 p.aifs = params->aifs;
2868 p.cw_max = params->cwmax;
2869 p.cw_min = params->cwmin;
2870 p.txop = params->txop;
2871
2872 /*
2873 * Setting tx queue params disables u-apsd because it's only
2874 * called in master mode.
2875 */
2876 p.uapsd = false;
2877
2878 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2879
2880 link->tx_conf[params->ac] = p;
2881 if (drv_conf_tx(local, link, params->ac, &p)) {
2882 wiphy_debug(local->hw.wiphy,
2883 "failed to set TX queue parameters for AC %d\n",
2884 params->ac);
2885 return -EINVAL;
2886 }
2887
2888 ieee80211_link_info_change_notify(sdata, link,
2889 BSS_CHANGED_QOS);
2890
2891 return 0;
2892}
2893
2894#ifdef CONFIG_PM
2895static int ieee80211_suspend(struct wiphy *wiphy,
2896 struct cfg80211_wowlan *wowlan)
2897{
2898 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2899}
2900
2901static int ieee80211_resume(struct wiphy *wiphy)
2902{
2903 return __ieee80211_resume(wiphy_priv(wiphy));
2904}
2905#else
2906#define ieee80211_suspend NULL
2907#define ieee80211_resume NULL
2908#endif
2909
2910static int ieee80211_scan(struct wiphy *wiphy,
2911 struct cfg80211_scan_request *req)
2912{
2913 struct ieee80211_sub_if_data *sdata;
2914
2915 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2916
2917 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2918 case NL80211_IFTYPE_STATION:
2919 case NL80211_IFTYPE_ADHOC:
2920 case NL80211_IFTYPE_MESH_POINT:
2921 case NL80211_IFTYPE_P2P_CLIENT:
2922 case NL80211_IFTYPE_P2P_DEVICE:
2923 break;
2924 case NL80211_IFTYPE_P2P_GO:
2925 if (sdata->local->ops->hw_scan)
2926 break;
2927 /*
2928 * FIXME: implement NoA while scanning in software,
2929 * for now fall through to allow scanning only when
2930 * beaconing hasn't been configured yet
2931 */
2932 fallthrough;
2933 case NL80211_IFTYPE_AP:
2934 /*
2935 * If the scan has been forced (and the driver supports
2936 * forcing), don't care about being beaconing already.
2937 * This will create problems to the attached stations (e.g. all
2938 * the frames sent while scanning on other channel will be
2939 * lost)
2940 */
2941 if (ieee80211_num_beaconing_links(sdata) &&
2942 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2943 !(req->flags & NL80211_SCAN_FLAG_AP)))
2944 return -EOPNOTSUPP;
2945 break;
2946 case NL80211_IFTYPE_NAN:
2947 default:
2948 return -EOPNOTSUPP;
2949 }
2950
2951 return ieee80211_request_scan(sdata, req);
2952}
2953
2954static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2955{
2956 ieee80211_scan_cancel(wiphy_priv(wiphy));
2957}
2958
2959static int
2960ieee80211_sched_scan_start(struct wiphy *wiphy,
2961 struct net_device *dev,
2962 struct cfg80211_sched_scan_request *req)
2963{
2964 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2965
2966 if (!sdata->local->ops->sched_scan_start)
2967 return -EOPNOTSUPP;
2968
2969 return ieee80211_request_sched_scan_start(sdata, req);
2970}
2971
2972static int
2973ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2974 u64 reqid)
2975{
2976 struct ieee80211_local *local = wiphy_priv(wiphy);
2977
2978 if (!local->ops->sched_scan_stop)
2979 return -EOPNOTSUPP;
2980
2981 return ieee80211_request_sched_scan_stop(local);
2982}
2983
2984static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2985 struct cfg80211_auth_request *req)
2986{
2987 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2988}
2989
2990static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2991 struct cfg80211_assoc_request *req)
2992{
2993 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2994}
2995
2996static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2997 struct cfg80211_deauth_request *req)
2998{
2999 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
3000}
3001
3002static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
3003 struct cfg80211_disassoc_request *req)
3004{
3005 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
3006}
3007
3008static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
3009 struct cfg80211_ibss_params *params)
3010{
3011 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
3012}
3013
3014static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
3015{
3016 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
3017}
3018
3019static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
3020 struct ocb_setup *setup)
3021{
3022 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
3023}
3024
3025static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
3026{
3027 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
3028}
3029
3030static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
3031 int rate[NUM_NL80211_BANDS])
3032{
3033 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3034
3035 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
3036 sizeof(int) * NUM_NL80211_BANDS);
3037
3038 if (ieee80211_sdata_running(sdata))
3039 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3040 BSS_CHANGED_MCAST_RATE);
3041
3042 return 0;
3043}
3044
3045static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
3046{
3047 struct ieee80211_local *local = wiphy_priv(wiphy);
3048 int err;
3049
3050 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
3051 ieee80211_check_fast_xmit_all(local);
3052
3053 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
3054
3055 if (err) {
3056 ieee80211_check_fast_xmit_all(local);
3057 return err;
3058 }
3059 }
3060
3061 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
3062 (changed & WIPHY_PARAM_DYN_ACK)) {
3063 s16 coverage_class;
3064
3065 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
3066 wiphy->coverage_class : -1;
3067 err = drv_set_coverage_class(local, coverage_class);
3068
3069 if (err)
3070 return err;
3071 }
3072
3073 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
3074 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
3075
3076 if (err)
3077 return err;
3078 }
3079
3080 if (changed & WIPHY_PARAM_RETRY_SHORT) {
3081 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
3082 return -EINVAL;
3083 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
3084 }
3085 if (changed & WIPHY_PARAM_RETRY_LONG) {
3086 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
3087 return -EINVAL;
3088 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
3089 }
3090 if (changed &
3091 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
3092 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
3093
3094 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
3095 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
3096 WIPHY_PARAM_TXQ_QUANTUM))
3097 ieee80211_txq_set_params(local);
3098
3099 return 0;
3100}
3101
3102static int ieee80211_set_tx_power(struct wiphy *wiphy,
3103 struct wireless_dev *wdev,
3104 enum nl80211_tx_power_setting type, int mbm)
3105{
3106 struct ieee80211_local *local = wiphy_priv(wiphy);
3107 struct ieee80211_sub_if_data *sdata;
3108 enum nl80211_tx_power_setting txp_type = type;
3109 bool update_txp_type = false;
3110 bool has_monitor = false;
3111 int user_power_level;
3112 int old_power = local->user_power_level;
3113
3114 lockdep_assert_wiphy(local->hw.wiphy);
3115
3116 switch (type) {
3117 case NL80211_TX_POWER_AUTOMATIC:
3118 user_power_level = IEEE80211_UNSET_POWER_LEVEL;
3119 txp_type = NL80211_TX_POWER_LIMITED;
3120 break;
3121 case NL80211_TX_POWER_LIMITED:
3122 case NL80211_TX_POWER_FIXED:
3123 if (mbm < 0 || (mbm % 100))
3124 return -EOPNOTSUPP;
3125 user_power_level = MBM_TO_DBM(mbm);
3126 break;
3127 default:
3128 return -EINVAL;
3129 }
3130
3131 if (wdev) {
3132 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3133
3134 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3135 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
3136 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
3137 return -EOPNOTSUPP;
3138
3139 sdata = wiphy_dereference(local->hw.wiphy,
3140 local->monitor_sdata);
3141 if (!sdata)
3142 return -EOPNOTSUPP;
3143 }
3144
3145 for (int link_id = 0;
3146 link_id < ARRAY_SIZE(sdata->link);
3147 link_id++) {
3148 struct ieee80211_link_data *link =
3149 wiphy_dereference(wiphy, sdata->link[link_id]);
3150
3151 if (!link)
3152 continue;
3153
3154 link->user_power_level = user_power_level;
3155
3156 if (txp_type != link->conf->txpower_type) {
3157 update_txp_type = true;
3158 link->conf->txpower_type = txp_type;
3159 }
3160
3161 ieee80211_recalc_txpower(link, update_txp_type);
3162 }
3163 return 0;
3164 }
3165
3166 local->user_power_level = user_power_level;
3167
3168 list_for_each_entry(sdata, &local->interfaces, list) {
3169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3170 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
3171 has_monitor = true;
3172 continue;
3173 }
3174
3175 for (int link_id = 0;
3176 link_id < ARRAY_SIZE(sdata->link);
3177 link_id++) {
3178 struct ieee80211_link_data *link =
3179 wiphy_dereference(wiphy, sdata->link[link_id]);
3180
3181 if (!link)
3182 continue;
3183
3184 link->user_power_level = local->user_power_level;
3185 if (txp_type != link->conf->txpower_type)
3186 update_txp_type = true;
3187 link->conf->txpower_type = txp_type;
3188 }
3189 }
3190 list_for_each_entry(sdata, &local->interfaces, list) {
3191 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3192 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
3193 continue;
3194
3195 for (int link_id = 0;
3196 link_id < ARRAY_SIZE(sdata->link);
3197 link_id++) {
3198 struct ieee80211_link_data *link =
3199 wiphy_dereference(wiphy, sdata->link[link_id]);
3200
3201 if (!link)
3202 continue;
3203
3204 ieee80211_recalc_txpower(link, update_txp_type);
3205 }
3206 }
3207
3208 if (has_monitor) {
3209 sdata = wiphy_dereference(local->hw.wiphy,
3210 local->monitor_sdata);
3211 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
3212 sdata->deflink.user_power_level = local->user_power_level;
3213 if (txp_type != sdata->vif.bss_conf.txpower_type)
3214 update_txp_type = true;
3215 sdata->vif.bss_conf.txpower_type = txp_type;
3216
3217 ieee80211_recalc_txpower(&sdata->deflink,
3218 update_txp_type);
3219 }
3220 }
3221
3222 if (local->emulate_chanctx &&
3223 (old_power != local->user_power_level))
3224 ieee80211_hw_conf_chan(local);
3225
3226 return 0;
3227}
3228
3229static int ieee80211_get_tx_power(struct wiphy *wiphy,
3230 struct wireless_dev *wdev,
3231 unsigned int link_id,
3232 int *dbm)
3233{
3234 struct ieee80211_local *local = wiphy_priv(wiphy);
3235 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3236 struct ieee80211_link_data *link_data;
3237
3238 if (local->ops->get_txpower &&
3239 (sdata->flags & IEEE80211_SDATA_IN_DRIVER))
3240 return drv_get_txpower(local, sdata, link_id, dbm);
3241
3242 if (local->emulate_chanctx) {
3243 *dbm = local->hw.conf.power_level;
3244 } else {
3245 link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
3246
3247 if (link_data)
3248 *dbm = link_data->conf->txpower;
3249 else
3250 return -ENOLINK;
3251 }
3252
3253 /* INT_MIN indicates no power level was set yet */
3254 if (*dbm == INT_MIN)
3255 return -EINVAL;
3256
3257 return 0;
3258}
3259
3260static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3261{
3262 struct ieee80211_local *local = wiphy_priv(wiphy);
3263
3264 drv_rfkill_poll(local);
3265}
3266
3267#ifdef CONFIG_NL80211_TESTMODE
3268static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3269 struct wireless_dev *wdev,
3270 void *data, int len)
3271{
3272 struct ieee80211_local *local = wiphy_priv(wiphy);
3273 struct ieee80211_vif *vif = NULL;
3274
3275 if (!local->ops->testmode_cmd)
3276 return -EOPNOTSUPP;
3277
3278 if (wdev) {
3279 struct ieee80211_sub_if_data *sdata;
3280
3281 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3282 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3283 vif = &sdata->vif;
3284 }
3285
3286 return local->ops->testmode_cmd(&local->hw, vif, data, len);
3287}
3288
3289static int ieee80211_testmode_dump(struct wiphy *wiphy,
3290 struct sk_buff *skb,
3291 struct netlink_callback *cb,
3292 void *data, int len)
3293{
3294 struct ieee80211_local *local = wiphy_priv(wiphy);
3295
3296 if (!local->ops->testmode_dump)
3297 return -EOPNOTSUPP;
3298
3299 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3300}
3301#endif
3302
3303int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3304 struct ieee80211_link_data *link,
3305 enum ieee80211_smps_mode smps_mode)
3306{
3307 const u8 *ap;
3308 enum ieee80211_smps_mode old_req;
3309 int err;
3310 struct sta_info *sta;
3311 bool tdls_peer_found = false;
3312
3313 lockdep_assert_wiphy(sdata->local->hw.wiphy);
3314
3315 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3316 return -EINVAL;
3317
3318 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
3319 return 0;
3320
3321 old_req = link->u.mgd.req_smps;
3322 link->u.mgd.req_smps = smps_mode;
3323
3324 /* The driver indicated that EML is enabled for the interface, which
3325 * implies that SMPS flows towards the AP should be stopped.
3326 */
3327 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
3328 return 0;
3329
3330 if (old_req == smps_mode &&
3331 smps_mode != IEEE80211_SMPS_AUTOMATIC)
3332 return 0;
3333
3334 /*
3335 * If not associated, or current association is not an HT
3336 * association, there's no need to do anything, just store
3337 * the new value until we associate.
3338 */
3339 if (!sdata->u.mgd.associated ||
3340 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT)
3341 return 0;
3342
3343 ap = sdata->vif.cfg.ap_addr;
3344
3345 rcu_read_lock();
3346 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3347 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3348 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3349 continue;
3350
3351 tdls_peer_found = true;
3352 break;
3353 }
3354 rcu_read_unlock();
3355
3356 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3357 if (tdls_peer_found || !sdata->u.mgd.powersave)
3358 smps_mode = IEEE80211_SMPS_OFF;
3359 else
3360 smps_mode = IEEE80211_SMPS_DYNAMIC;
3361 }
3362
3363 /* send SM PS frame to AP */
3364 err = ieee80211_send_smps_action(sdata, smps_mode,
3365 ap, ap,
3366 ieee80211_vif_is_mld(&sdata->vif) ?
3367 link->link_id : -1);
3368 if (err)
3369 link->u.mgd.req_smps = old_req;
3370 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3371 ieee80211_teardown_tdls_peers(link);
3372
3373 return err;
3374}
3375
3376static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3377 bool enabled, int timeout)
3378{
3379 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3380 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3381 unsigned int link_id;
3382
3383 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3384 return -EOPNOTSUPP;
3385
3386 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3387 return -EOPNOTSUPP;
3388
3389 if (enabled == sdata->u.mgd.powersave &&
3390 timeout == local->dynamic_ps_forced_timeout)
3391 return 0;
3392
3393 sdata->u.mgd.powersave = enabled;
3394 local->dynamic_ps_forced_timeout = timeout;
3395
3396 /* no change, but if automatic follow powersave */
3397 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3398 struct ieee80211_link_data *link;
3399
3400 link = sdata_dereference(sdata->link[link_id], sdata);
3401
3402 if (!link)
3403 continue;
3404 __ieee80211_request_smps_mgd(sdata, link,
3405 link->u.mgd.req_smps);
3406 }
3407
3408 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3409 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3410
3411 ieee80211_recalc_ps(local);
3412 ieee80211_recalc_ps_vif(sdata);
3413 ieee80211_check_fast_rx_iface(sdata);
3414
3415 return 0;
3416}
3417
3418static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata,
3419 struct ieee80211_link_data *link,
3420 s32 rssi_thold, u32 rssi_hyst,
3421 s32 rssi_low, s32 rssi_high)
3422{
3423 struct ieee80211_bss_conf *conf;
3424
3425 if (!link || !link->conf)
3426 return;
3427
3428 conf = link->conf;
3429
3430 if (rssi_thold && rssi_hyst &&
3431 rssi_thold == conf->cqm_rssi_thold &&
3432 rssi_hyst == conf->cqm_rssi_hyst)
3433 return;
3434
3435 conf->cqm_rssi_thold = rssi_thold;
3436 conf->cqm_rssi_hyst = rssi_hyst;
3437 conf->cqm_rssi_low = rssi_low;
3438 conf->cqm_rssi_high = rssi_high;
3439 link->u.mgd.last_cqm_event_signal = 0;
3440
3441 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
3442 return;
3443
3444 if (sdata->u.mgd.associated &&
3445 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3446 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM);
3447}
3448
3449static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3450 struct net_device *dev,
3451 s32 rssi_thold, u32 rssi_hyst)
3452{
3453 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3454 struct ieee80211_vif *vif = &sdata->vif;
3455 int link_id;
3456
3457 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3458 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3459 return -EOPNOTSUPP;
3460
3461 /* For MLD, handle CQM change on all the active links */
3462 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3463 struct ieee80211_link_data *link =
3464 sdata_dereference(sdata->link[link_id], sdata);
3465
3466 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst,
3467 0, 0);
3468 }
3469
3470 return 0;
3471}
3472
3473static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3474 struct net_device *dev,
3475 s32 rssi_low, s32 rssi_high)
3476{
3477 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3478 struct ieee80211_vif *vif = &sdata->vif;
3479 int link_id;
3480
3481 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)
3482 return -EOPNOTSUPP;
3483
3484 /* For MLD, handle CQM change on all the active links */
3485 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3486 struct ieee80211_link_data *link =
3487 sdata_dereference(sdata->link[link_id], sdata);
3488
3489 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0,
3490 rssi_low, rssi_high);
3491 }
3492
3493 return 0;
3494}
3495
3496static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3497 struct net_device *dev,
3498 unsigned int link_id,
3499 const u8 *addr,
3500 const struct cfg80211_bitrate_mask *mask)
3501{
3502 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3503 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3504 int i, ret;
3505
3506 if (!ieee80211_sdata_running(sdata))
3507 return -ENETDOWN;
3508
3509 /*
3510 * If active validate the setting and reject it if it doesn't leave
3511 * at least one basic rate usable, since we really have to be able
3512 * to send something, and if we're an AP we have to be able to do
3513 * so at a basic rate so that all clients can receive it.
3514 */
3515 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3516 sdata->vif.bss_conf.chanreq.oper.chan) {
3517 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3518 enum nl80211_band band;
3519
3520 band = sdata->vif.bss_conf.chanreq.oper.chan->band;
3521
3522 if (!(mask->control[band].legacy & basic_rates))
3523 return -EINVAL;
3524 }
3525
3526 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3527 ret = drv_set_bitrate_mask(local, sdata, mask);
3528 if (ret)
3529 return ret;
3530 }
3531
3532 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3533 struct ieee80211_supported_band *sband = wiphy->bands[i];
3534 int j;
3535
3536 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3537 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3538 sizeof(mask->control[i].ht_mcs));
3539 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3540 mask->control[i].vht_mcs,
3541 sizeof(mask->control[i].vht_mcs));
3542
3543 sdata->rc_has_mcs_mask[i] = false;
3544 sdata->rc_has_vht_mcs_mask[i] = false;
3545 if (!sband)
3546 continue;
3547
3548 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3549 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3550 sdata->rc_has_mcs_mask[i] = true;
3551 break;
3552 }
3553 }
3554
3555 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3556 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3557 sdata->rc_has_vht_mcs_mask[i] = true;
3558 break;
3559 }
3560 }
3561 }
3562
3563 return 0;
3564}
3565
3566static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3567 struct net_device *dev,
3568 struct cfg80211_chan_def *chandef,
3569 u32 cac_time_ms, int link_id)
3570{
3571 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3572 struct ieee80211_chan_req chanreq = { .oper = *chandef };
3573 struct ieee80211_local *local = sdata->local;
3574 struct ieee80211_link_data *link_data;
3575 int err;
3576
3577 lockdep_assert_wiphy(local->hw.wiphy);
3578
3579 if (!list_empty(&local->roc_list) || local->scanning)
3580 return -EBUSY;
3581
3582 link_data = sdata_dereference(sdata->link[link_id], sdata);
3583 if (!link_data)
3584 return -ENOLINK;
3585
3586 /* whatever, but channel contexts should not complain about that one */
3587 link_data->smps_mode = IEEE80211_SMPS_OFF;
3588 link_data->needed_rx_chains = local->rx_chains;
3589
3590 err = ieee80211_link_use_channel(link_data, &chanreq,
3591 IEEE80211_CHANCTX_SHARED);
3592 if (err)
3593 return err;
3594
3595 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work,
3596 msecs_to_jiffies(cac_time_ms));
3597
3598 return 0;
3599}
3600
3601static void ieee80211_end_cac(struct wiphy *wiphy,
3602 struct net_device *dev, unsigned int link_id)
3603{
3604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3605 struct ieee80211_local *local = sdata->local;
3606 struct ieee80211_link_data *link_data;
3607
3608 lockdep_assert_wiphy(local->hw.wiphy);
3609
3610 list_for_each_entry(sdata, &local->interfaces, list) {
3611 link_data = sdata_dereference(sdata->link[link_id], sdata);
3612 if (!link_data)
3613 continue;
3614
3615 wiphy_delayed_work_cancel(wiphy,
3616 &link_data->dfs_cac_timer_work);
3617
3618 if (sdata->wdev.links[link_id].cac_started) {
3619 ieee80211_link_release_channel(link_data);
3620 sdata->wdev.links[link_id].cac_started = false;
3621 }
3622 }
3623}
3624
3625static struct cfg80211_beacon_data *
3626cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3627{
3628 struct cfg80211_beacon_data *new_beacon;
3629 u8 *pos;
3630 int len;
3631
3632 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3633 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3634 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3635
3636 if (beacon->mbssid_ies)
3637 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
3638 beacon->rnr_ies,
3639 beacon->mbssid_ies->cnt);
3640
3641 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3642 if (!new_beacon)
3643 return NULL;
3644
3645 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3646 new_beacon->mbssid_ies =
3647 kzalloc(struct_size(new_beacon->mbssid_ies,
3648 elem, beacon->mbssid_ies->cnt),
3649 GFP_KERNEL);
3650 if (!new_beacon->mbssid_ies) {
3651 kfree(new_beacon);
3652 return NULL;
3653 }
3654
3655 if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
3656 new_beacon->rnr_ies =
3657 kzalloc(struct_size(new_beacon->rnr_ies,
3658 elem, beacon->rnr_ies->cnt),
3659 GFP_KERNEL);
3660 if (!new_beacon->rnr_ies) {
3661 kfree(new_beacon->mbssid_ies);
3662 kfree(new_beacon);
3663 return NULL;
3664 }
3665 }
3666 }
3667
3668 pos = (u8 *)(new_beacon + 1);
3669 if (beacon->head_len) {
3670 new_beacon->head_len = beacon->head_len;
3671 new_beacon->head = pos;
3672 memcpy(pos, beacon->head, beacon->head_len);
3673 pos += beacon->head_len;
3674 }
3675 if (beacon->tail_len) {
3676 new_beacon->tail_len = beacon->tail_len;
3677 new_beacon->tail = pos;
3678 memcpy(pos, beacon->tail, beacon->tail_len);
3679 pos += beacon->tail_len;
3680 }
3681 if (beacon->beacon_ies_len) {
3682 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3683 new_beacon->beacon_ies = pos;
3684 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3685 pos += beacon->beacon_ies_len;
3686 }
3687 if (beacon->proberesp_ies_len) {
3688 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3689 new_beacon->proberesp_ies = pos;
3690 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3691 pos += beacon->proberesp_ies_len;
3692 }
3693 if (beacon->assocresp_ies_len) {
3694 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3695 new_beacon->assocresp_ies = pos;
3696 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3697 pos += beacon->assocresp_ies_len;
3698 }
3699 if (beacon->probe_resp_len) {
3700 new_beacon->probe_resp_len = beacon->probe_resp_len;
3701 new_beacon->probe_resp = pos;
3702 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3703 pos += beacon->probe_resp_len;
3704 }
3705 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3706 pos += ieee80211_copy_mbssid_beacon(pos,
3707 new_beacon->mbssid_ies,
3708 beacon->mbssid_ies);
3709 if (beacon->rnr_ies && beacon->rnr_ies->cnt)
3710 pos += ieee80211_copy_rnr_beacon(pos,
3711 new_beacon->rnr_ies,
3712 beacon->rnr_ies);
3713 }
3714
3715 /* might copy -1, meaning no changes requested */
3716 new_beacon->ftm_responder = beacon->ftm_responder;
3717 if (beacon->lci) {
3718 new_beacon->lci_len = beacon->lci_len;
3719 new_beacon->lci = pos;
3720 memcpy(pos, beacon->lci, beacon->lci_len);
3721 pos += beacon->lci_len;
3722 }
3723 if (beacon->civicloc) {
3724 new_beacon->civicloc_len = beacon->civicloc_len;
3725 new_beacon->civicloc = pos;
3726 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3727 pos += beacon->civicloc_len;
3728 }
3729
3730 return new_beacon;
3731}
3732
3733void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id)
3734{
3735 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3736 struct ieee80211_local *local = sdata->local;
3737 struct ieee80211_bss_conf *tx_bss_conf;
3738 struct ieee80211_link_data *link_data;
3739
3740 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
3741 return;
3742
3743 rcu_read_lock();
3744
3745 link_data = rcu_dereference(sdata->link[link_id]);
3746 if (WARN_ON(!link_data)) {
3747 rcu_read_unlock();
3748 return;
3749 }
3750
3751 tx_bss_conf = rcu_dereference(link_data->conf->tx_bss_conf);
3752 if (tx_bss_conf == link_data->conf) {
3753 /* Trigger ieee80211_csa_finish() on the non-transmitting
3754 * interfaces when channel switch is received on
3755 * transmitting interface
3756 */
3757 struct ieee80211_link_data *iter;
3758
3759 for_each_sdata_link(local, iter) {
3760 if (iter->sdata == sdata ||
3761 rcu_access_pointer(iter->conf->tx_bss_conf) != tx_bss_conf)
3762 continue;
3763
3764 wiphy_work_queue(iter->sdata->local->hw.wiphy,
3765 &iter->csa.finalize_work);
3766 }
3767 }
3768
3769 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work);
3770
3771 rcu_read_unlock();
3772}
3773EXPORT_SYMBOL(ieee80211_csa_finish);
3774
3775void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif)
3776{
3777 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3778 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3779 struct ieee80211_local *local = sdata->local;
3780
3781 sdata_info(sdata, "channel switch failed, disconnecting\n");
3782 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work);
3783}
3784EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3785
3786static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data,
3787 u64 *changed)
3788{
3789 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3790 int err;
3791
3792 switch (sdata->vif.type) {
3793 case NL80211_IFTYPE_AP:
3794 if (!link_data->u.ap.next_beacon)
3795 return -EINVAL;
3796
3797 err = ieee80211_assign_beacon(sdata, link_data,
3798 link_data->u.ap.next_beacon,
3799 NULL, NULL, changed);
3800 ieee80211_free_next_beacon(link_data);
3801
3802 if (err < 0)
3803 return err;
3804 break;
3805 case NL80211_IFTYPE_ADHOC:
3806 err = ieee80211_ibss_finish_csa(sdata, changed);
3807 if (err < 0)
3808 return err;
3809 break;
3810#ifdef CONFIG_MAC80211_MESH
3811 case NL80211_IFTYPE_MESH_POINT:
3812 err = ieee80211_mesh_finish_csa(sdata, changed);
3813 if (err < 0)
3814 return err;
3815 break;
3816#endif
3817 default:
3818 WARN_ON(1);
3819 return -EINVAL;
3820 }
3821
3822 return 0;
3823}
3824
3825static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3826{
3827 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3828 struct ieee80211_local *local = sdata->local;
3829 struct ieee80211_bss_conf *link_conf = link_data->conf;
3830 u64 changed = 0;
3831 int err;
3832
3833 lockdep_assert_wiphy(local->hw.wiphy);
3834
3835 /*
3836 * using reservation isn't immediate as it may be deferred until later
3837 * with multi-vif. once reservation is complete it will re-schedule the
3838 * work with no reserved_chanctx so verify chandef to check if it
3839 * completed successfully
3840 */
3841
3842 if (link_data->reserved_chanctx) {
3843 /*
3844 * with multi-vif csa driver may call ieee80211_csa_finish()
3845 * many times while waiting for other interfaces to use their
3846 * reservations
3847 */
3848 if (link_data->reserved_ready)
3849 return 0;
3850
3851 return ieee80211_link_use_reserved_context(link_data);
3852 }
3853
3854 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper,
3855 &link_data->csa.chanreq.oper))
3856 return -EINVAL;
3857
3858 link_conf->csa_active = false;
3859
3860 err = ieee80211_set_after_csa_beacon(link_data, &changed);
3861 if (err)
3862 return err;
3863
3864 ieee80211_link_info_change_notify(sdata, link_data, changed);
3865
3866 ieee80211_vif_unblock_queues_csa(sdata);
3867
3868 err = drv_post_channel_switch(link_data);
3869 if (err)
3870 return err;
3871
3872 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper,
3873 link_data->link_id);
3874
3875 return 0;
3876}
3877
3878static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3879{
3880 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3881
3882 if (__ieee80211_csa_finalize(link_data)) {
3883 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n",
3884 link_data->link_id);
3885 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3886 GFP_KERNEL);
3887 }
3888}
3889
3890void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work)
3891{
3892 struct ieee80211_link_data *link =
3893 container_of(work, struct ieee80211_link_data, csa.finalize_work);
3894 struct ieee80211_sub_if_data *sdata = link->sdata;
3895 struct ieee80211_local *local = sdata->local;
3896
3897 lockdep_assert_wiphy(local->hw.wiphy);
3898
3899 /* AP might have been stopped while waiting for the lock. */
3900 if (!link->conf->csa_active)
3901 return;
3902
3903 if (!ieee80211_sdata_running(sdata))
3904 return;
3905
3906 ieee80211_csa_finalize(link);
3907}
3908
3909static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data,
3910 struct cfg80211_csa_settings *params,
3911 u64 *changed)
3912{
3913 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3914 struct ieee80211_csa_settings csa = {};
3915 int err;
3916
3917 switch (sdata->vif.type) {
3918 case NL80211_IFTYPE_AP:
3919 link_data->u.ap.next_beacon =
3920 cfg80211_beacon_dup(&params->beacon_after);
3921 if (!link_data->u.ap.next_beacon)
3922 return -ENOMEM;
3923
3924 /*
3925 * With a count of 0, we don't have to wait for any
3926 * TBTT before switching, so complete the CSA
3927 * immediately. In theory, with a count == 1 we
3928 * should delay the switch until just before the next
3929 * TBTT, but that would complicate things so we switch
3930 * immediately too. If we would delay the switch
3931 * until the next TBTT, we would have to set the probe
3932 * response here.
3933 *
3934 * TODO: A channel switch with count <= 1 without
3935 * sending a CSA action frame is kind of useless,
3936 * because the clients won't know we're changing
3937 * channels. The action frame must be implemented
3938 * either here or in the userspace.
3939 */
3940 if (params->count <= 1)
3941 break;
3942
3943 if ((params->n_counter_offsets_beacon >
3944 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3945 (params->n_counter_offsets_presp >
3946 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3947 ieee80211_free_next_beacon(link_data);
3948 return -EINVAL;
3949 }
3950
3951 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3952 csa.counter_offsets_presp = params->counter_offsets_presp;
3953 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3954 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3955 csa.count = params->count;
3956
3957 err = ieee80211_assign_beacon(sdata, link_data,
3958 &params->beacon_csa, &csa,
3959 NULL, changed);
3960 if (err < 0) {
3961 ieee80211_free_next_beacon(link_data);
3962 return err;
3963 }
3964
3965 break;
3966 case NL80211_IFTYPE_ADHOC:
3967 if (!sdata->vif.cfg.ibss_joined)
3968 return -EINVAL;
3969
3970 if (params->chandef.width != sdata->u.ibss.chandef.width)
3971 return -EINVAL;
3972
3973 switch (params->chandef.width) {
3974 case NL80211_CHAN_WIDTH_40:
3975 if (cfg80211_get_chandef_type(&params->chandef) !=
3976 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3977 return -EINVAL;
3978 break;
3979 case NL80211_CHAN_WIDTH_5:
3980 case NL80211_CHAN_WIDTH_10:
3981 case NL80211_CHAN_WIDTH_20_NOHT:
3982 case NL80211_CHAN_WIDTH_20:
3983 break;
3984 default:
3985 return -EINVAL;
3986 }
3987
3988 /* changes into another band are not supported */
3989 if (sdata->u.ibss.chandef.chan->band !=
3990 params->chandef.chan->band)
3991 return -EINVAL;
3992
3993 /* see comments in the NL80211_IFTYPE_AP block */
3994 if (params->count > 1) {
3995 err = ieee80211_ibss_csa_beacon(sdata, params, changed);
3996 if (err < 0)
3997 return err;
3998 }
3999
4000 ieee80211_send_action_csa(sdata, params);
4001
4002 break;
4003#ifdef CONFIG_MAC80211_MESH
4004 case NL80211_IFTYPE_MESH_POINT: {
4005 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
4006
4007 /* changes into another band are not supported */
4008 if (sdata->vif.bss_conf.chanreq.oper.chan->band !=
4009 params->chandef.chan->band)
4010 return -EINVAL;
4011
4012 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
4013 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
4014 if (!ifmsh->pre_value)
4015 ifmsh->pre_value = 1;
4016 else
4017 ifmsh->pre_value++;
4018 }
4019
4020 /* see comments in the NL80211_IFTYPE_AP block */
4021 if (params->count > 1) {
4022 err = ieee80211_mesh_csa_beacon(sdata, params, changed);
4023 if (err < 0) {
4024 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
4025 return err;
4026 }
4027 }
4028
4029 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
4030 ieee80211_send_action_csa(sdata, params);
4031
4032 break;
4033 }
4034#endif
4035 default:
4036 return -EOPNOTSUPP;
4037 }
4038
4039 return 0;
4040}
4041
4042static void ieee80211_color_change_abort(struct ieee80211_link_data *link)
4043{
4044 link->conf->color_change_active = false;
4045
4046 ieee80211_free_next_beacon(link);
4047
4048 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id);
4049}
4050
4051static int
4052__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4053 struct cfg80211_csa_settings *params)
4054{
4055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4056 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
4057 struct ieee80211_local *local = sdata->local;
4058 struct ieee80211_channel_switch ch_switch = {
4059 .link_id = params->link_id,
4060 };
4061 struct ieee80211_chanctx_conf *conf;
4062 struct ieee80211_chanctx *chanctx;
4063 struct ieee80211_bss_conf *link_conf;
4064 struct ieee80211_link_data *link_data;
4065 u64 changed = 0;
4066 u8 link_id = params->link_id;
4067 int err;
4068
4069 lockdep_assert_wiphy(local->hw.wiphy);
4070
4071 if (!list_empty(&local->roc_list) || local->scanning)
4072 return -EBUSY;
4073
4074 if (sdata->wdev.links[link_id].cac_started)
4075 return -EBUSY;
4076
4077 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4078 return -EINVAL;
4079
4080 link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
4081 if (!link_data)
4082 return -ENOLINK;
4083
4084 link_conf = link_data->conf;
4085
4086 if (chanreq.oper.punctured && !link_conf->eht_support)
4087 return -EINVAL;
4088
4089 /* don't allow another channel switch if one is already active. */
4090 if (link_conf->csa_active)
4091 return -EBUSY;
4092
4093 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf);
4094 if (!conf) {
4095 err = -EBUSY;
4096 goto out;
4097 }
4098
4099 if (params->chandef.chan->freq_offset) {
4100 /* this may work, but is untested */
4101 err = -EOPNOTSUPP;
4102 goto out;
4103 }
4104
4105 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
4106
4107 ch_switch.timestamp = 0;
4108 ch_switch.device_timestamp = 0;
4109 ch_switch.block_tx = params->block_tx;
4110 ch_switch.chandef = chanreq.oper;
4111 ch_switch.count = params->count;
4112
4113 err = drv_pre_channel_switch(sdata, &ch_switch);
4114 if (err)
4115 goto out;
4116
4117 err = ieee80211_link_reserve_chanctx(link_data, &chanreq,
4118 chanctx->mode,
4119 params->radar_required);
4120 if (err)
4121 goto out;
4122
4123 /* if reservation is invalid then this will fail */
4124 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1);
4125 if (err) {
4126 ieee80211_link_unreserve_chanctx(link_data);
4127 goto out;
4128 }
4129
4130 /* if there is a color change in progress, abort it */
4131 if (link_conf->color_change_active)
4132 ieee80211_color_change_abort(link_data);
4133
4134 err = ieee80211_set_csa_beacon(link_data, params, &changed);
4135 if (err) {
4136 ieee80211_link_unreserve_chanctx(link_data);
4137 goto out;
4138 }
4139
4140 link_data->csa.chanreq = chanreq;
4141 link_conf->csa_active = true;
4142
4143 if (params->block_tx)
4144 ieee80211_vif_block_queues_csa(sdata);
4145
4146 cfg80211_ch_switch_started_notify(sdata->dev,
4147 &link_data->csa.chanreq.oper, link_id,
4148 params->count, params->block_tx);
4149
4150 if (changed) {
4151 ieee80211_link_info_change_notify(sdata, link_data, changed);
4152 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper);
4153 } else {
4154 /* if the beacon didn't change, we can finalize immediately */
4155 ieee80211_csa_finalize(link_data);
4156 }
4157
4158out:
4159 return err;
4160}
4161
4162int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4163 struct cfg80211_csa_settings *params)
4164{
4165 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4166 struct ieee80211_local *local = sdata->local;
4167
4168 lockdep_assert_wiphy(local->hw.wiphy);
4169
4170 return __ieee80211_channel_switch(wiphy, dev, params);
4171}
4172
4173u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
4174{
4175 lockdep_assert_wiphy(local->hw.wiphy);
4176
4177 local->roc_cookie_counter++;
4178
4179 /* wow, you wrapped 64 bits ... more likely a bug */
4180 if (WARN_ON(local->roc_cookie_counter == 0))
4181 local->roc_cookie_counter++;
4182
4183 return local->roc_cookie_counter;
4184}
4185
4186int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
4187 u64 *cookie, gfp_t gfp)
4188{
4189 unsigned long spin_flags;
4190 struct sk_buff *ack_skb;
4191 int id;
4192
4193 ack_skb = skb_copy(skb, gfp);
4194 if (!ack_skb)
4195 return -ENOMEM;
4196
4197 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
4198 id = idr_alloc(&local->ack_status_frames, ack_skb,
4199 1, 0x2000, GFP_ATOMIC);
4200 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
4201
4202 if (id < 0) {
4203 kfree_skb(ack_skb);
4204 return -ENOMEM;
4205 }
4206
4207 IEEE80211_SKB_CB(skb)->status_data_idr = 1;
4208 IEEE80211_SKB_CB(skb)->status_data = id;
4209
4210 *cookie = ieee80211_mgmt_tx_cookie(local);
4211 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
4212
4213 return 0;
4214}
4215
4216static void
4217ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
4218 struct wireless_dev *wdev,
4219 struct mgmt_frame_regs *upd)
4220{
4221 struct ieee80211_local *local = wiphy_priv(wiphy);
4222 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4223 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
4224 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
4225 bool global_change, intf_change;
4226
4227 global_change =
4228 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
4229 (local->rx_mcast_action_reg !=
4230 !!(upd->global_mcast_stypes & action_mask));
4231 local->probe_req_reg = upd->global_stypes & preq_mask;
4232 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
4233
4234 intf_change = (sdata->vif.probe_req_reg !=
4235 !!(upd->interface_stypes & preq_mask)) ||
4236 (sdata->vif.rx_mcast_action_reg !=
4237 !!(upd->interface_mcast_stypes & action_mask));
4238 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
4239 sdata->vif.rx_mcast_action_reg =
4240 upd->interface_mcast_stypes & action_mask;
4241
4242 if (!local->open_count)
4243 return;
4244
4245 if (intf_change && ieee80211_sdata_running(sdata))
4246 drv_config_iface_filter(local, sdata,
4247 sdata->vif.probe_req_reg ?
4248 FIF_PROBE_REQ : 0,
4249 FIF_PROBE_REQ);
4250
4251 if (global_change)
4252 ieee80211_configure_filter(local);
4253}
4254
4255static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
4256{
4257 struct ieee80211_local *local = wiphy_priv(wiphy);
4258 int ret;
4259
4260 if (local->started)
4261 return -EOPNOTSUPP;
4262
4263 ret = drv_set_antenna(local, tx_ant, rx_ant);
4264 if (ret)
4265 return ret;
4266
4267 local->rx_chains = hweight8(rx_ant);
4268 return 0;
4269}
4270
4271static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4272{
4273 struct ieee80211_local *local = wiphy_priv(wiphy);
4274
4275 return drv_get_antenna(local, tx_ant, rx_ant);
4276}
4277
4278static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4279 struct net_device *dev,
4280 struct cfg80211_gtk_rekey_data *data)
4281{
4282 struct ieee80211_local *local = wiphy_priv(wiphy);
4283 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4284
4285 if (!local->ops->set_rekey_data)
4286 return -EOPNOTSUPP;
4287
4288 drv_set_rekey_data(local, sdata, data);
4289
4290 return 0;
4291}
4292
4293static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4294 const u8 *peer, u64 *cookie)
4295{
4296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4297 struct ieee80211_local *local = sdata->local;
4298 struct ieee80211_qos_hdr *nullfunc;
4299 struct sk_buff *skb;
4300 int size = sizeof(*nullfunc);
4301 __le16 fc;
4302 bool qos;
4303 struct ieee80211_tx_info *info;
4304 struct sta_info *sta;
4305 struct ieee80211_chanctx_conf *chanctx_conf;
4306 enum nl80211_band band;
4307 int ret;
4308
4309 /* the lock is needed to assign the cookie later */
4310 lockdep_assert_wiphy(local->hw.wiphy);
4311
4312 rcu_read_lock();
4313 sta = sta_info_get_bss(sdata, peer);
4314 if (!sta) {
4315 ret = -ENOLINK;
4316 goto unlock;
4317 }
4318
4319 qos = sta->sta.wme;
4320
4321 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4322 if (WARN_ON(!chanctx_conf)) {
4323 ret = -EINVAL;
4324 goto unlock;
4325 }
4326 band = chanctx_conf->def.chan->band;
4327
4328 if (qos) {
4329 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4330 IEEE80211_STYPE_QOS_NULLFUNC |
4331 IEEE80211_FCTL_FROMDS);
4332 } else {
4333 size -= 2;
4334 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4335 IEEE80211_STYPE_NULLFUNC |
4336 IEEE80211_FCTL_FROMDS);
4337 }
4338
4339 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4340 if (!skb) {
4341 ret = -ENOMEM;
4342 goto unlock;
4343 }
4344
4345 skb->dev = dev;
4346
4347 skb_reserve(skb, local->hw.extra_tx_headroom);
4348
4349 nullfunc = skb_put(skb, size);
4350 nullfunc->frame_control = fc;
4351 nullfunc->duration_id = 0;
4352 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4353 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4354 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4355 nullfunc->seq_ctrl = 0;
4356
4357 info = IEEE80211_SKB_CB(skb);
4358
4359 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4360 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4361 info->band = band;
4362
4363 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4364 skb->priority = 7;
4365 if (qos)
4366 nullfunc->qos_ctrl = cpu_to_le16(7);
4367
4368 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4369 if (ret) {
4370 kfree_skb(skb);
4371 goto unlock;
4372 }
4373
4374 local_bh_disable();
4375 ieee80211_xmit(sdata, sta, skb);
4376 local_bh_enable();
4377
4378 ret = 0;
4379unlock:
4380 rcu_read_unlock();
4381
4382 return ret;
4383}
4384
4385static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4386 struct wireless_dev *wdev,
4387 unsigned int link_id,
4388 struct cfg80211_chan_def *chandef)
4389{
4390 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4391 struct ieee80211_local *local = wiphy_priv(wiphy);
4392 struct ieee80211_chanctx_conf *chanctx_conf;
4393 struct ieee80211_link_data *link;
4394 int ret = -ENODATA;
4395
4396 rcu_read_lock();
4397 link = rcu_dereference(sdata->link[link_id]);
4398 if (!link) {
4399 ret = -ENOLINK;
4400 goto out;
4401 }
4402
4403 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4404 if (chanctx_conf) {
4405 *chandef = link->conf->chanreq.oper;
4406 ret = 0;
4407 } else if (local->open_count > 0 &&
4408 local->open_count == local->virt_monitors &&
4409 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4410 *chandef = local->monitor_chanreq.oper;
4411 ret = 0;
4412 }
4413out:
4414 rcu_read_unlock();
4415
4416 return ret;
4417}
4418
4419#ifdef CONFIG_PM
4420static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4421{
4422 drv_set_wakeup(wiphy_priv(wiphy), enabled);
4423}
4424#endif
4425
4426static int ieee80211_set_qos_map(struct wiphy *wiphy,
4427 struct net_device *dev,
4428 struct cfg80211_qos_map *qos_map)
4429{
4430 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4431 struct mac80211_qos_map *new_qos_map, *old_qos_map;
4432
4433 if (qos_map) {
4434 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4435 if (!new_qos_map)
4436 return -ENOMEM;
4437 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4438 } else {
4439 /* A NULL qos_map was passed to disable QoS mapping */
4440 new_qos_map = NULL;
4441 }
4442
4443 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4444 rcu_assign_pointer(sdata->qos_map, new_qos_map);
4445 if (old_qos_map)
4446 kfree_rcu(old_qos_map, rcu_head);
4447
4448 return 0;
4449}
4450
4451static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4452 struct net_device *dev,
4453 unsigned int link_id,
4454 struct cfg80211_chan_def *chandef)
4455{
4456 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4457 struct ieee80211_link_data *link;
4458 struct ieee80211_chan_req chanreq = { .oper = *chandef };
4459 int ret;
4460 u64 changed = 0;
4461
4462 link = sdata_dereference(sdata->link[link_id], sdata);
4463
4464 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed);
4465 if (ret == 0)
4466 ieee80211_link_info_change_notify(sdata, link, changed);
4467
4468 return ret;
4469}
4470
4471static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4472 u8 tsid, const u8 *peer, u8 up,
4473 u16 admitted_time)
4474{
4475 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4476 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4477 int ac = ieee802_1d_to_ac[up];
4478
4479 if (sdata->vif.type != NL80211_IFTYPE_STATION)
4480 return -EOPNOTSUPP;
4481
4482 if (!(sdata->wmm_acm & BIT(up)))
4483 return -EINVAL;
4484
4485 if (ifmgd->tx_tspec[ac].admitted_time)
4486 return -EBUSY;
4487
4488 if (admitted_time) {
4489 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4490 ifmgd->tx_tspec[ac].tsid = tsid;
4491 ifmgd->tx_tspec[ac].up = up;
4492 }
4493
4494 return 0;
4495}
4496
4497static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4498 u8 tsid, const u8 *peer)
4499{
4500 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4501 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4502 struct ieee80211_local *local = wiphy_priv(wiphy);
4503 int ac;
4504
4505 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4506 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4507
4508 /* skip unused entries */
4509 if (!tx_tspec->admitted_time)
4510 continue;
4511
4512 if (tx_tspec->tsid != tsid)
4513 continue;
4514
4515 /* due to this new packets will be reassigned to non-ACM ACs */
4516 tx_tspec->up = -1;
4517
4518 /* Make sure that all packets have been sent to avoid to
4519 * restore the QoS params on packets that are still on the
4520 * queues.
4521 */
4522 synchronize_net();
4523 ieee80211_flush_queues(local, sdata, false);
4524
4525 /* restore the normal QoS parameters
4526 * (unconditionally to avoid races)
4527 */
4528 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4529 tx_tspec->downgraded = false;
4530 ieee80211_sta_handle_tspec_ac_params(sdata);
4531
4532 /* finally clear all the data */
4533 memset(tx_tspec, 0, sizeof(*tx_tspec));
4534
4535 return 0;
4536 }
4537
4538 return -ENOENT;
4539}
4540
4541void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4542 u8 inst_id,
4543 enum nl80211_nan_func_term_reason reason,
4544 gfp_t gfp)
4545{
4546 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4547 struct cfg80211_nan_func *func;
4548 u64 cookie;
4549
4550 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4551 return;
4552
4553 spin_lock_bh(&sdata->u.nan.func_lock);
4554
4555 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4556 if (WARN_ON(!func)) {
4557 spin_unlock_bh(&sdata->u.nan.func_lock);
4558 return;
4559 }
4560
4561 cookie = func->cookie;
4562 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4563
4564 spin_unlock_bh(&sdata->u.nan.func_lock);
4565
4566 cfg80211_free_nan_func(func);
4567
4568 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4569 reason, cookie, gfp);
4570}
4571EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4572
4573void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4574 struct cfg80211_nan_match_params *match,
4575 gfp_t gfp)
4576{
4577 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4578 struct cfg80211_nan_func *func;
4579
4580 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4581 return;
4582
4583 spin_lock_bh(&sdata->u.nan.func_lock);
4584
4585 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
4586 if (WARN_ON(!func)) {
4587 spin_unlock_bh(&sdata->u.nan.func_lock);
4588 return;
4589 }
4590 match->cookie = func->cookie;
4591
4592 spin_unlock_bh(&sdata->u.nan.func_lock);
4593
4594 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4595}
4596EXPORT_SYMBOL(ieee80211_nan_func_match);
4597
4598static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4599 struct net_device *dev,
4600 const bool enabled)
4601{
4602 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4603
4604 sdata->u.ap.multicast_to_unicast = enabled;
4605
4606 return 0;
4607}
4608
4609void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4610 struct txq_info *txqi)
4611{
4612 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4613 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4614 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4615 }
4616
4617 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4618 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4619 txqstats->backlog_packets = txqi->tin.backlog_packets;
4620 }
4621
4622 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4623 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4624 txqstats->flows = txqi->tin.flows;
4625 }
4626
4627 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4628 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4629 txqstats->drops = txqi->cstats.drop_count;
4630 }
4631
4632 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4633 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4634 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4635 }
4636
4637 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4638 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4639 txqstats->overlimit = txqi->tin.overlimit;
4640 }
4641
4642 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4643 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4644 txqstats->collisions = txqi->tin.collisions;
4645 }
4646
4647 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4648 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4649 txqstats->tx_bytes = txqi->tin.tx_bytes;
4650 }
4651
4652 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4653 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4654 txqstats->tx_packets = txqi->tin.tx_packets;
4655 }
4656}
4657
4658static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4659 struct wireless_dev *wdev,
4660 struct cfg80211_txq_stats *txqstats)
4661{
4662 struct ieee80211_local *local = wiphy_priv(wiphy);
4663 struct ieee80211_sub_if_data *sdata;
4664 int ret = 0;
4665
4666 spin_lock_bh(&local->fq.lock);
4667 rcu_read_lock();
4668
4669 if (wdev) {
4670 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4671 if (!sdata->vif.txq) {
4672 ret = 1;
4673 goto out;
4674 }
4675 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4676 } else {
4677 /* phy stats */
4678 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4679 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4680 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4681 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4682 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4683 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4684 txqstats->backlog_packets = local->fq.backlog;
4685 txqstats->backlog_bytes = local->fq.memory_usage;
4686 txqstats->overlimit = local->fq.overlimit;
4687 txqstats->overmemory = local->fq.overmemory;
4688 txqstats->collisions = local->fq.collisions;
4689 txqstats->max_flows = local->fq.flows_cnt;
4690 }
4691
4692out:
4693 rcu_read_unlock();
4694 spin_unlock_bh(&local->fq.lock);
4695
4696 return ret;
4697}
4698
4699static int
4700ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4701 struct net_device *dev,
4702 struct cfg80211_ftm_responder_stats *ftm_stats)
4703{
4704 struct ieee80211_local *local = wiphy_priv(wiphy);
4705 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4706
4707 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4708}
4709
4710static int
4711ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4712 struct cfg80211_pmsr_request *request)
4713{
4714 struct ieee80211_local *local = wiphy_priv(wiphy);
4715 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4716
4717 return drv_start_pmsr(local, sdata, request);
4718}
4719
4720static void
4721ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4722 struct cfg80211_pmsr_request *request)
4723{
4724 struct ieee80211_local *local = wiphy_priv(wiphy);
4725 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4726
4727 return drv_abort_pmsr(local, sdata, request);
4728}
4729
4730static int ieee80211_set_tid_config(struct wiphy *wiphy,
4731 struct net_device *dev,
4732 struct cfg80211_tid_config *tid_conf)
4733{
4734 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4735 struct sta_info *sta;
4736
4737 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4738
4739 if (!sdata->local->ops->set_tid_config)
4740 return -EOPNOTSUPP;
4741
4742 if (!tid_conf->peer)
4743 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4744
4745 sta = sta_info_get_bss(sdata, tid_conf->peer);
4746 if (!sta)
4747 return -ENOENT;
4748
4749 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4750}
4751
4752static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4753 struct net_device *dev,
4754 const u8 *peer, u8 tids)
4755{
4756 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4757 struct sta_info *sta;
4758
4759 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4760
4761 if (!sdata->local->ops->reset_tid_config)
4762 return -EOPNOTSUPP;
4763
4764 if (!peer)
4765 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4766
4767 sta = sta_info_get_bss(sdata, peer);
4768 if (!sta)
4769 return -ENOENT;
4770
4771 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4772}
4773
4774static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4775 struct cfg80211_sar_specs *sar)
4776{
4777 struct ieee80211_local *local = wiphy_priv(wiphy);
4778
4779 if (!local->ops->set_sar_specs)
4780 return -EOPNOTSUPP;
4781
4782 return local->ops->set_sar_specs(&local->hw, sar);
4783}
4784
4785static int
4786ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link,
4787 u64 *changed)
4788{
4789 struct ieee80211_sub_if_data *sdata = link->sdata;
4790
4791 switch (sdata->vif.type) {
4792 case NL80211_IFTYPE_AP: {
4793 int ret;
4794
4795 if (!link->u.ap.next_beacon)
4796 return -EINVAL;
4797
4798 ret = ieee80211_assign_beacon(sdata, link,
4799 link->u.ap.next_beacon,
4800 NULL, NULL, changed);
4801 ieee80211_free_next_beacon(link);
4802
4803 if (ret < 0)
4804 return ret;
4805
4806 break;
4807 }
4808 default:
4809 WARN_ON_ONCE(1);
4810 return -EINVAL;
4811 }
4812
4813 return 0;
4814}
4815
4816static int
4817ieee80211_set_color_change_beacon(struct ieee80211_link_data *link,
4818 struct cfg80211_color_change_settings *params,
4819 u64 *changed)
4820{
4821 struct ieee80211_sub_if_data *sdata = link->sdata;
4822 struct ieee80211_color_change_settings color_change = {};
4823 int err;
4824
4825 switch (sdata->vif.type) {
4826 case NL80211_IFTYPE_AP:
4827 link->u.ap.next_beacon =
4828 cfg80211_beacon_dup(&params->beacon_next);
4829 if (!link->u.ap.next_beacon)
4830 return -ENOMEM;
4831
4832 if (params->count <= 1)
4833 break;
4834
4835 color_change.counter_offset_beacon =
4836 params->counter_offset_beacon;
4837 color_change.counter_offset_presp =
4838 params->counter_offset_presp;
4839 color_change.count = params->count;
4840
4841 err = ieee80211_assign_beacon(sdata, link,
4842 &params->beacon_color_change,
4843 NULL, &color_change, changed);
4844 if (err < 0) {
4845 ieee80211_free_next_beacon(link);
4846 return err;
4847 }
4848 break;
4849 default:
4850 return -EOPNOTSUPP;
4851 }
4852
4853 return 0;
4854}
4855
4856static void
4857ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link,
4858 u8 color, int enable, u64 changed)
4859{
4860 struct ieee80211_sub_if_data *sdata = link->sdata;
4861
4862 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4863
4864 link->conf->he_bss_color.color = color;
4865 link->conf->he_bss_color.enabled = enable;
4866 changed |= BSS_CHANGED_HE_BSS_COLOR;
4867
4868 ieee80211_link_info_change_notify(sdata, link, changed);
4869
4870 if (!link->conf->nontransmitted &&
4871 rcu_access_pointer(link->conf->tx_bss_conf)) {
4872 struct ieee80211_link_data *tmp;
4873
4874 for_each_sdata_link(sdata->local, tmp) {
4875 if (tmp->sdata == sdata ||
4876 rcu_access_pointer(tmp->conf->tx_bss_conf) != link->conf)
4877 continue;
4878
4879 tmp->conf->he_bss_color.color = color;
4880 tmp->conf->he_bss_color.enabled = enable;
4881 ieee80211_link_info_change_notify(tmp->sdata, tmp,
4882 BSS_CHANGED_HE_BSS_COLOR);
4883 }
4884 }
4885}
4886
4887static int ieee80211_color_change_finalize(struct ieee80211_link_data *link)
4888{
4889 struct ieee80211_sub_if_data *sdata = link->sdata;
4890 struct ieee80211_local *local = sdata->local;
4891 u64 changed = 0;
4892 int err;
4893
4894 lockdep_assert_wiphy(local->hw.wiphy);
4895
4896 link->conf->color_change_active = false;
4897
4898 err = ieee80211_set_after_color_change_beacon(link, &changed);
4899 if (err) {
4900 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id);
4901 return err;
4902 }
4903
4904 ieee80211_color_change_bss_config_notify(link,
4905 link->conf->color_change_color,
4906 1, changed);
4907 cfg80211_color_change_notify(sdata->dev, link->link_id);
4908
4909 return 0;
4910}
4911
4912void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
4913 struct wiphy_work *work)
4914{
4915 struct ieee80211_link_data *link =
4916 container_of(work, struct ieee80211_link_data,
4917 color_change_finalize_work);
4918 struct ieee80211_sub_if_data *sdata = link->sdata;
4919 struct ieee80211_bss_conf *link_conf = link->conf;
4920 struct ieee80211_local *local = sdata->local;
4921
4922 lockdep_assert_wiphy(local->hw.wiphy);
4923
4924 /* AP might have been stopped while waiting for the lock. */
4925 if (!link_conf->color_change_active)
4926 return;
4927
4928 if (!ieee80211_sdata_running(sdata))
4929 return;
4930
4931 ieee80211_color_change_finalize(link);
4932}
4933
4934void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
4935 struct wiphy_work *work)
4936{
4937 struct ieee80211_link_data *link =
4938 container_of(work, struct ieee80211_link_data,
4939 color_collision_detect_work.work);
4940 struct ieee80211_sub_if_data *sdata = link->sdata;
4941
4942 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap,
4943 link->link_id);
4944}
4945
4946void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id)
4947{
4948 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4949 struct ieee80211_link_data *link;
4950
4951 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4952 return;
4953
4954 rcu_read_lock();
4955
4956 link = rcu_dereference(sdata->link[link_id]);
4957 if (WARN_ON(!link)) {
4958 rcu_read_unlock();
4959 return;
4960 }
4961
4962 wiphy_work_queue(sdata->local->hw.wiphy,
4963 &link->color_change_finalize_work);
4964
4965 rcu_read_unlock();
4966}
4967EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4968
4969void
4970ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4971 u64 color_bitmap, u8 link_id)
4972{
4973 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4974 struct ieee80211_link_data *link;
4975
4976 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4977 return;
4978
4979 rcu_read_lock();
4980
4981 link = rcu_dereference(sdata->link[link_id]);
4982 if (WARN_ON(!link)) {
4983 rcu_read_unlock();
4984 return;
4985 }
4986
4987 if (link->conf->color_change_active || link->conf->csa_active) {
4988 rcu_read_unlock();
4989 return;
4990 }
4991
4992 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy,
4993 &link->color_collision_detect_work)) {
4994 rcu_read_unlock();
4995 return;
4996 }
4997
4998 link->color_bitmap = color_bitmap;
4999 /* queue the color collision detection event every 500 ms in order to
5000 * avoid sending too much netlink messages to userspace.
5001 */
5002 wiphy_delayed_work_queue(sdata->local->hw.wiphy,
5003 &link->color_collision_detect_work,
5004 msecs_to_jiffies(500));
5005
5006 rcu_read_unlock();
5007}
5008EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
5009
5010static int
5011ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
5012 struct cfg80211_color_change_settings *params)
5013{
5014 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5015 struct ieee80211_local *local = sdata->local;
5016 struct ieee80211_bss_conf *link_conf;
5017 struct ieee80211_link_data *link;
5018 u8 link_id = params->link_id;
5019 u64 changed = 0;
5020 int err;
5021
5022 lockdep_assert_wiphy(local->hw.wiphy);
5023
5024 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
5025 return -EINVAL;
5026
5027 link = wiphy_dereference(wiphy, sdata->link[link_id]);
5028 if (!link)
5029 return -ENOLINK;
5030
5031 link_conf = link->conf;
5032
5033 if (link_conf->nontransmitted)
5034 return -EINVAL;
5035
5036 /* don't allow another color change if one is already active or if csa
5037 * is active
5038 */
5039 if (link_conf->color_change_active || link_conf->csa_active) {
5040 err = -EBUSY;
5041 goto out;
5042 }
5043
5044 err = ieee80211_set_color_change_beacon(link, params, &changed);
5045 if (err)
5046 goto out;
5047
5048 link_conf->color_change_active = true;
5049 link_conf->color_change_color = params->color;
5050
5051 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id);
5052
5053 if (changed)
5054 ieee80211_color_change_bss_config_notify(link, 0, 0, changed);
5055 else
5056 /* if the beacon didn't change, we can finalize immediately */
5057 ieee80211_color_change_finalize(link);
5058
5059out:
5060
5061 return err;
5062}
5063
5064static int
5065ieee80211_set_radar_background(struct wiphy *wiphy,
5066 struct cfg80211_chan_def *chandef)
5067{
5068 struct ieee80211_local *local = wiphy_priv(wiphy);
5069
5070 if (!local->ops->set_radar_background)
5071 return -EOPNOTSUPP;
5072
5073 return local->ops->set_radar_background(&local->hw, chandef);
5074}
5075
5076static int ieee80211_add_intf_link(struct wiphy *wiphy,
5077 struct wireless_dev *wdev,
5078 unsigned int link_id)
5079{
5080 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
5081
5082 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5083
5084 if (wdev->use_4addr)
5085 return -EOPNOTSUPP;
5086
5087 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
5088}
5089
5090static void ieee80211_del_intf_link(struct wiphy *wiphy,
5091 struct wireless_dev *wdev,
5092 unsigned int link_id)
5093{
5094 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
5095 u16 new_links = wdev->valid_links & ~BIT(link_id);
5096
5097 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5098
5099 /* During the link teardown process, certain functions require the
5100 * link_id to remain in the valid_links bitmap. Therefore, instead
5101 * of removing the link_id from the bitmap, pass a masked value to
5102 * simulate as if link_id does not exist anymore.
5103 */
5104 ieee80211_vif_set_links(sdata, new_links, 0);
5105}
5106
5107static int
5108ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
5109 struct link_station_parameters *params)
5110{
5111 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5112 struct ieee80211_local *local = wiphy_priv(wiphy);
5113 struct sta_info *sta;
5114 int ret;
5115
5116 lockdep_assert_wiphy(local->hw.wiphy);
5117
5118 sta = sta_info_get_bss(sdata, params->mld_mac);
5119 if (!sta)
5120 return -ENOENT;
5121
5122 if (!sta->sta.valid_links)
5123 return -EINVAL;
5124
5125 if (sta->sta.valid_links & BIT(params->link_id))
5126 return -EALREADY;
5127
5128 ret = ieee80211_sta_allocate_link(sta, params->link_id);
5129 if (ret)
5130 return ret;
5131
5132 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params);
5133 if (ret) {
5134 ieee80211_sta_free_link(sta, params->link_id);
5135 return ret;
5136 }
5137
5138 if (test_sta_flag(sta, WLAN_STA_ASSOC)) {
5139 struct link_sta_info *link_sta;
5140
5141 link_sta = sdata_dereference(sta->link[params->link_id], sdata);
5142 rate_control_rate_init(link_sta);
5143 }
5144
5145 /* ieee80211_sta_activate_link frees the link upon failure */
5146 return ieee80211_sta_activate_link(sta, params->link_id);
5147}
5148
5149static int
5150ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
5151 struct link_station_parameters *params)
5152{
5153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5154 struct ieee80211_local *local = wiphy_priv(wiphy);
5155 struct sta_info *sta;
5156
5157 lockdep_assert_wiphy(local->hw.wiphy);
5158
5159 sta = sta_info_get_bss(sdata, params->mld_mac);
5160 if (!sta)
5161 return -ENOENT;
5162
5163 if (!(sta->sta.valid_links & BIT(params->link_id)))
5164 return -EINVAL;
5165
5166 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY,
5167 params);
5168}
5169
5170static int
5171ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
5172 struct link_station_del_parameters *params)
5173{
5174 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5175 struct sta_info *sta;
5176
5177 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5178
5179 sta = sta_info_get_bss(sdata, params->mld_mac);
5180 if (!sta)
5181 return -ENOENT;
5182
5183 if (!(sta->sta.valid_links & BIT(params->link_id)))
5184 return -EINVAL;
5185
5186 /* must not create a STA without links */
5187 if (sta->sta.valid_links == BIT(params->link_id))
5188 return -EINVAL;
5189
5190 ieee80211_sta_remove_link(sta, params->link_id);
5191
5192 return 0;
5193}
5194
5195static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
5196 struct net_device *dev,
5197 struct cfg80211_set_hw_timestamp *hwts)
5198{
5199 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5200 struct ieee80211_local *local = sdata->local;
5201
5202 if (!local->ops->set_hw_timestamp)
5203 return -EOPNOTSUPP;
5204
5205 if (!check_sdata_in_driver(sdata))
5206 return -EIO;
5207
5208 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
5209}
5210
5211static int
5212ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev,
5213 struct cfg80211_ttlm_params *params)
5214{
5215 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5216
5217 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5218
5219 return ieee80211_req_neg_ttlm(sdata, params);
5220}
5221
5222static int
5223ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev,
5224 struct cfg80211_ml_reconf_req *req)
5225{
5226 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5227
5228 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5229
5230 return ieee80211_mgd_assoc_ml_reconf(sdata, req);
5231}
5232
5233static int
5234ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable)
5235{
5236 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5237
5238 return ieee80211_mgd_set_epcs(sdata, enable);
5239}
5240
5241const struct cfg80211_ops mac80211_config_ops = {
5242 .add_virtual_intf = ieee80211_add_iface,
5243 .del_virtual_intf = ieee80211_del_iface,
5244 .change_virtual_intf = ieee80211_change_iface,
5245 .start_p2p_device = ieee80211_start_p2p_device,
5246 .stop_p2p_device = ieee80211_stop_p2p_device,
5247 .add_key = ieee80211_add_key,
5248 .del_key = ieee80211_del_key,
5249 .get_key = ieee80211_get_key,
5250 .set_default_key = ieee80211_config_default_key,
5251 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5252 .set_default_beacon_key = ieee80211_config_default_beacon_key,
5253 .start_ap = ieee80211_start_ap,
5254 .change_beacon = ieee80211_change_beacon,
5255 .stop_ap = ieee80211_stop_ap,
5256 .add_station = ieee80211_add_station,
5257 .del_station = ieee80211_del_station,
5258 .change_station = ieee80211_change_station,
5259 .get_station = ieee80211_get_station,
5260 .dump_station = ieee80211_dump_station,
5261 .dump_survey = ieee80211_dump_survey,
5262#ifdef CONFIG_MAC80211_MESH
5263 .add_mpath = ieee80211_add_mpath,
5264 .del_mpath = ieee80211_del_mpath,
5265 .change_mpath = ieee80211_change_mpath,
5266 .get_mpath = ieee80211_get_mpath,
5267 .dump_mpath = ieee80211_dump_mpath,
5268 .get_mpp = ieee80211_get_mpp,
5269 .dump_mpp = ieee80211_dump_mpp,
5270 .update_mesh_config = ieee80211_update_mesh_config,
5271 .get_mesh_config = ieee80211_get_mesh_config,
5272 .join_mesh = ieee80211_join_mesh,
5273 .leave_mesh = ieee80211_leave_mesh,
5274#endif
5275 .join_ocb = ieee80211_join_ocb,
5276 .leave_ocb = ieee80211_leave_ocb,
5277 .change_bss = ieee80211_change_bss,
5278 .inform_bss = ieee80211_inform_bss,
5279 .set_txq_params = ieee80211_set_txq_params,
5280 .set_monitor_channel = ieee80211_set_monitor_channel,
5281 .suspend = ieee80211_suspend,
5282 .resume = ieee80211_resume,
5283 .scan = ieee80211_scan,
5284 .abort_scan = ieee80211_abort_scan,
5285 .sched_scan_start = ieee80211_sched_scan_start,
5286 .sched_scan_stop = ieee80211_sched_scan_stop,
5287 .auth = ieee80211_auth,
5288 .assoc = ieee80211_assoc,
5289 .deauth = ieee80211_deauth,
5290 .disassoc = ieee80211_disassoc,
5291 .join_ibss = ieee80211_join_ibss,
5292 .leave_ibss = ieee80211_leave_ibss,
5293 .set_mcast_rate = ieee80211_set_mcast_rate,
5294 .set_wiphy_params = ieee80211_set_wiphy_params,
5295 .set_tx_power = ieee80211_set_tx_power,
5296 .get_tx_power = ieee80211_get_tx_power,
5297 .rfkill_poll = ieee80211_rfkill_poll,
5298 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
5299 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
5300 .set_power_mgmt = ieee80211_set_power_mgmt,
5301 .set_bitrate_mask = ieee80211_set_bitrate_mask,
5302 .remain_on_channel = ieee80211_remain_on_channel,
5303 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
5304 .mgmt_tx = ieee80211_mgmt_tx,
5305 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
5306 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
5307 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
5308 .update_mgmt_frame_registrations =
5309 ieee80211_update_mgmt_frame_registrations,
5310 .set_antenna = ieee80211_set_antenna,
5311 .get_antenna = ieee80211_get_antenna,
5312 .set_rekey_data = ieee80211_set_rekey_data,
5313 .tdls_oper = ieee80211_tdls_oper,
5314 .tdls_mgmt = ieee80211_tdls_mgmt,
5315 .tdls_channel_switch = ieee80211_tdls_channel_switch,
5316 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
5317 .probe_client = ieee80211_probe_client,
5318 .set_noack_map = ieee80211_set_noack_map,
5319#ifdef CONFIG_PM
5320 .set_wakeup = ieee80211_set_wakeup,
5321#endif
5322 .get_channel = ieee80211_cfg_get_channel,
5323 .start_radar_detection = ieee80211_start_radar_detection,
5324 .end_cac = ieee80211_end_cac,
5325 .channel_switch = ieee80211_channel_switch,
5326 .set_qos_map = ieee80211_set_qos_map,
5327 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
5328 .add_tx_ts = ieee80211_add_tx_ts,
5329 .del_tx_ts = ieee80211_del_tx_ts,
5330 .start_nan = ieee80211_start_nan,
5331 .stop_nan = ieee80211_stop_nan,
5332 .nan_change_conf = ieee80211_nan_change_conf,
5333 .add_nan_func = ieee80211_add_nan_func,
5334 .del_nan_func = ieee80211_del_nan_func,
5335 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5336 .tx_control_port = ieee80211_tx_control_port,
5337 .get_txq_stats = ieee80211_get_txq_stats,
5338 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5339 .start_pmsr = ieee80211_start_pmsr,
5340 .abort_pmsr = ieee80211_abort_pmsr,
5341 .probe_mesh_link = ieee80211_probe_mesh_link,
5342 .set_tid_config = ieee80211_set_tid_config,
5343 .reset_tid_config = ieee80211_reset_tid_config,
5344 .set_sar_specs = ieee80211_set_sar_specs,
5345 .color_change = ieee80211_color_change,
5346 .set_radar_background = ieee80211_set_radar_background,
5347 .add_intf_link = ieee80211_add_intf_link,
5348 .del_intf_link = ieee80211_del_intf_link,
5349 .add_link_station = ieee80211_add_link_station,
5350 .mod_link_station = ieee80211_mod_link_station,
5351 .del_link_station = ieee80211_del_link_station,
5352 .set_hw_timestamp = ieee80211_set_hw_timestamp,
5353 .set_ttlm = ieee80211_set_ttlm,
5354 .get_radio_mask = ieee80211_get_radio_mask,
5355 .assoc_ml_reconf = ieee80211_assoc_ml_reconf,
5356 .set_epcs = ieee80211_set_epcs,
5357};
Linux 6.x block layer and io_uring tree(s)