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) 2018-2024 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(vif: &sdata->vif))
39 return ERR_PTR(error: -EINVAL);
40
41 return &sdata->deflink;
42 }
43
44 link = sdata_dereference(sdata->link[link_id], sdata);
45 if (!link)
46 return ERR_PTR(error: -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, link: &sdata->deflink,
67 changed: 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(addr: params->vht_mumimo_follow_addr);
77 ether_addr_copy(dst: sdata->u.mntr.mu_follow_addr,
78 src: 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_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
93
94 /*
95 * Prohibit MONITOR_FLAG_COOK_FRAMES and
96 * MONITOR_FLAG_ACTIVE to be changed while the
97 * interface is up.
98 * Else we would need to add a lot of cruft
99 * to update everything:
100 * cooked_mntrs, monitor and all fif_* counters
101 * reconfigure hardware
102 */
103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
104 return -EBUSY;
105 }
106
107 /* also validate MU-MIMO change */
108 monitor_sdata = wiphy_dereference(local->hw.wiphy,
109 local->monitor_sdata);
110
111 if (!monitor_sdata &&
112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
113 return -EOPNOTSUPP;
114
115 /* apply all changes now - no failures allowed */
116
117 if (monitor_sdata)
118 ieee80211_set_mu_mimo_follow(sdata: monitor_sdata, params);
119
120 if (params->flags) {
121 if (ieee80211_sdata_running(sdata)) {
122 ieee80211_adjust_monitor_flags(sdata, offset: -1);
123 sdata->u.mntr.flags = params->flags;
124 ieee80211_adjust_monitor_flags(sdata, offset: 1);
125
126 ieee80211_configure_filter(local);
127 } else {
128 /*
129 * Because the interface is down, ieee80211_do_stop
130 * and ieee80211_do_open take care of "everything"
131 * mentioned in the comment above.
132 */
133 sdata->u.mntr.flags = params->flags;
134 }
135 }
136
137 return 0;
138}
139
140static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
141 struct cfg80211_mbssid_config params,
142 struct ieee80211_bss_conf *link_conf)
143{
144 struct ieee80211_sub_if_data *tx_sdata;
145
146 sdata->vif.mbssid_tx_vif = NULL;
147 link_conf->bssid_index = 0;
148 link_conf->nontransmitted = false;
149 link_conf->ema_ap = false;
150 link_conf->bssid_indicator = 0;
151
152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev)
153 return -EINVAL;
154
155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(wdev: params.tx_wdev);
156 if (!tx_sdata)
157 return -EINVAL;
158
159 if (tx_sdata == sdata) {
160 sdata->vif.mbssid_tx_vif = &sdata->vif;
161 } else {
162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif;
163 link_conf->nontransmitted = true;
164 link_conf->bssid_index = params.index;
165 }
166 if (params.ema)
167 link_conf->ema_ap = true;
168
169 return 0;
170}
171
172static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
173 const char *name,
174 unsigned char name_assign_type,
175 enum nl80211_iftype type,
176 struct vif_params *params)
177{
178 struct ieee80211_local *local = wiphy_priv(wiphy);
179 struct wireless_dev *wdev;
180 struct ieee80211_sub_if_data *sdata;
181 int err;
182
183 err = ieee80211_if_add(local, name, name_assign_type, new_wdev: &wdev, type, params);
184 if (err)
185 return ERR_PTR(error: err);
186
187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
188
189 if (type == NL80211_IFTYPE_MONITOR) {
190 err = ieee80211_set_mon_options(sdata, params);
191 if (err) {
192 ieee80211_if_remove(sdata);
193 return NULL;
194 }
195 }
196
197 return wdev;
198}
199
200static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
201{
202 ieee80211_if_remove(sdata: IEEE80211_WDEV_TO_SUB_IF(wdev));
203
204 return 0;
205}
206
207static int ieee80211_change_iface(struct wiphy *wiphy,
208 struct net_device *dev,
209 enum nl80211_iftype type,
210 struct vif_params *params)
211{
212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
213 struct ieee80211_local *local = sdata->local;
214 struct sta_info *sta;
215 int ret;
216
217 lockdep_assert_wiphy(local->hw.wiphy);
218
219 ret = ieee80211_if_change_type(sdata, type);
220 if (ret)
221 return ret;
222
223 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
224 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
225 ieee80211_check_fast_rx_iface(sdata);
226 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
227 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
228
229 if (params->use_4addr == ifmgd->use_4addr)
230 return 0;
231
232 /* FIXME: no support for 4-addr MLO yet */
233 if (ieee80211_vif_is_mld(vif: &sdata->vif))
234 return -EOPNOTSUPP;
235
236 sdata->u.mgd.use_4addr = params->use_4addr;
237 if (!ifmgd->associated)
238 return 0;
239
240 sta = sta_info_get(sdata, addr: sdata->deflink.u.mgd.bssid);
241 if (sta)
242 drv_sta_set_4addr(local, sdata, sta: &sta->sta,
243 enabled: params->use_4addr);
244
245 if (params->use_4addr)
246 ieee80211_send_4addr_nullfunc(local, sdata);
247 }
248
249 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
250 ret = ieee80211_set_mon_options(sdata, params);
251 if (ret)
252 return ret;
253 }
254
255 return 0;
256}
257
258static int ieee80211_start_p2p_device(struct wiphy *wiphy,
259 struct wireless_dev *wdev)
260{
261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
262 int ret;
263
264 lockdep_assert_wiphy(sdata->local->hw.wiphy);
265
266 ret = ieee80211_check_combinations(sdata, NULL, chanmode: 0, radar_detect: 0);
267 if (ret < 0)
268 return ret;
269
270 return ieee80211_do_open(wdev, coming_up: true);
271}
272
273static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
274 struct wireless_dev *wdev)
275{
276 ieee80211_sdata_stop(sdata: IEEE80211_WDEV_TO_SUB_IF(wdev));
277}
278
279static int ieee80211_start_nan(struct wiphy *wiphy,
280 struct wireless_dev *wdev,
281 struct cfg80211_nan_conf *conf)
282{
283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
284 int ret;
285
286 lockdep_assert_wiphy(sdata->local->hw.wiphy);
287
288 ret = ieee80211_check_combinations(sdata, NULL, chanmode: 0, radar_detect: 0);
289 if (ret < 0)
290 return ret;
291
292 ret = ieee80211_do_open(wdev, coming_up: true);
293 if (ret)
294 return ret;
295
296 ret = drv_start_nan(local: sdata->local, sdata, conf);
297 if (ret)
298 ieee80211_sdata_stop(sdata);
299
300 sdata->u.nan.conf = *conf;
301
302 return ret;
303}
304
305static void ieee80211_stop_nan(struct wiphy *wiphy,
306 struct wireless_dev *wdev)
307{
308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
309
310 drv_stop_nan(local: sdata->local, sdata);
311 ieee80211_sdata_stop(sdata);
312}
313
314static int ieee80211_nan_change_conf(struct wiphy *wiphy,
315 struct wireless_dev *wdev,
316 struct cfg80211_nan_conf *conf,
317 u32 changes)
318{
319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
320 struct cfg80211_nan_conf new_conf;
321 int ret = 0;
322
323 if (sdata->vif.type != NL80211_IFTYPE_NAN)
324 return -EOPNOTSUPP;
325
326 if (!ieee80211_sdata_running(sdata))
327 return -ENETDOWN;
328
329 new_conf = sdata->u.nan.conf;
330
331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
332 new_conf.master_pref = conf->master_pref;
333
334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
335 new_conf.bands = conf->bands;
336
337 ret = drv_nan_change_conf(local: sdata->local, sdata, conf: &new_conf, changes);
338 if (!ret)
339 sdata->u.nan.conf = new_conf;
340
341 return ret;
342}
343
344static int ieee80211_add_nan_func(struct wiphy *wiphy,
345 struct wireless_dev *wdev,
346 struct cfg80211_nan_func *nan_func)
347{
348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
349 int ret;
350
351 if (sdata->vif.type != NL80211_IFTYPE_NAN)
352 return -EOPNOTSUPP;
353
354 if (!ieee80211_sdata_running(sdata))
355 return -ENETDOWN;
356
357 spin_lock_bh(lock: &sdata->u.nan.func_lock);
358
359 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
360 ptr: nan_func, start: 1, end: sdata->local->hw.max_nan_de_entries + 1,
361 GFP_ATOMIC);
362 spin_unlock_bh(lock: &sdata->u.nan.func_lock);
363
364 if (ret < 0)
365 return ret;
366
367 nan_func->instance_id = ret;
368
369 WARN_ON(nan_func->instance_id == 0);
370
371 ret = drv_add_nan_func(local: sdata->local, sdata, nan_func);
372 if (ret) {
373 spin_lock_bh(lock: &sdata->u.nan.func_lock);
374 idr_remove(&sdata->u.nan.function_inst_ids,
375 id: nan_func->instance_id);
376 spin_unlock_bh(lock: &sdata->u.nan.func_lock);
377 }
378
379 return ret;
380}
381
382static struct cfg80211_nan_func *
383ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
384 u64 cookie)
385{
386 struct cfg80211_nan_func *func;
387 int id;
388
389 lockdep_assert_held(&sdata->u.nan.func_lock);
390
391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
392 if (func->cookie == cookie)
393 return func;
394 }
395
396 return NULL;
397}
398
399static void ieee80211_del_nan_func(struct wiphy *wiphy,
400 struct wireless_dev *wdev, u64 cookie)
401{
402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
403 struct cfg80211_nan_func *func;
404 u8 instance_id = 0;
405
406 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
407 !ieee80211_sdata_running(sdata))
408 return;
409
410 spin_lock_bh(lock: &sdata->u.nan.func_lock);
411
412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
413 if (func)
414 instance_id = func->instance_id;
415
416 spin_unlock_bh(lock: &sdata->u.nan.func_lock);
417
418 if (instance_id)
419 drv_del_nan_func(local: sdata->local, sdata, instance_id);
420}
421
422static int ieee80211_set_noack_map(struct wiphy *wiphy,
423 struct net_device *dev,
424 u16 noack_map)
425{
426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
427
428 sdata->noack_map = noack_map;
429
430 ieee80211_check_fast_xmit_iface(sdata);
431
432 return 0;
433}
434
435static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
436 const u8 *mac_addr, u8 key_idx)
437{
438 struct ieee80211_local *local = sdata->local;
439 struct ieee80211_key *key;
440 struct sta_info *sta;
441 int ret = -EINVAL;
442
443 if (!wiphy_ext_feature_isset(wiphy: local->hw.wiphy,
444 ftidx: NL80211_EXT_FEATURE_EXT_KEY_ID))
445 return -EINVAL;
446
447 sta = sta_info_get_bss(sdata, addr: mac_addr);
448
449 if (!sta)
450 return -EINVAL;
451
452 if (sta->ptk_idx == key_idx)
453 return 0;
454
455 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]);
456
457 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
458 ret = ieee80211_set_tx_key(key);
459
460 return ret;
461}
462
463static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
464 int link_id, u8 key_idx, bool pairwise,
465 const u8 *mac_addr, struct key_params *params)
466{
467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
468 struct ieee80211_link_data *link =
469 ieee80211_link_or_deflink(sdata, link_id, require_valid: false);
470 struct ieee80211_local *local = sdata->local;
471 struct sta_info *sta = NULL;
472 struct ieee80211_key *key;
473 int err;
474
475 lockdep_assert_wiphy(local->hw.wiphy);
476
477 if (!ieee80211_sdata_running(sdata))
478 return -ENETDOWN;
479
480 if (IS_ERR(ptr: link))
481 return PTR_ERR(ptr: link);
482
483 if (pairwise && params->mode == NL80211_KEY_SET_TX)
484 return ieee80211_set_tx(sdata, mac_addr, key_idx);
485
486 /* reject WEP and TKIP keys if WEP failed to initialize */
487 switch (params->cipher) {
488 case WLAN_CIPHER_SUITE_WEP40:
489 case WLAN_CIPHER_SUITE_TKIP:
490 case WLAN_CIPHER_SUITE_WEP104:
491 if (link_id >= 0)
492 return -EINVAL;
493 if (WARN_ON_ONCE(fips_enabled))
494 return -EINVAL;
495 break;
496 default:
497 break;
498 }
499
500 key = ieee80211_key_alloc(cipher: params->cipher, idx: key_idx, key_len: params->key_len,
501 key_data: params->key, seq_len: params->seq_len, seq: params->seq);
502 if (IS_ERR(ptr: key))
503 return PTR_ERR(ptr: key);
504
505 key->conf.link_id = link_id;
506
507 if (pairwise)
508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
509
510 if (params->mode == NL80211_KEY_NO_TX)
511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
512
513 if (mac_addr) {
514 sta = sta_info_get_bss(sdata, addr: mac_addr);
515 /*
516 * The ASSOC test makes sure the driver is ready to
517 * receive the key. When wpa_supplicant has roamed
518 * using FT, it attempts to set the key before
519 * association has completed, this rejects that attempt
520 * so it will set the key again after association.
521 *
522 * TODO: accept the key if we have a station entry and
523 * add it to the device after the station.
524 */
525 if (!sta || !test_sta_flag(sta, flag: WLAN_STA_ASSOC)) {
526 ieee80211_key_free_unused(key);
527 return -ENOENT;
528 }
529 }
530
531 switch (sdata->vif.type) {
532 case NL80211_IFTYPE_STATION:
533 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
534 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
535 break;
536 case NL80211_IFTYPE_AP:
537 case NL80211_IFTYPE_AP_VLAN:
538 /* Keys without a station are used for TX only */
539 if (sta && test_sta_flag(sta, flag: WLAN_STA_MFP))
540 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
541 break;
542 case NL80211_IFTYPE_ADHOC:
543 /* no MFP (yet) */
544 break;
545 case NL80211_IFTYPE_MESH_POINT:
546#ifdef CONFIG_MAC80211_MESH
547 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
548 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
549 break;
550#endif
551 case NL80211_IFTYPE_WDS:
552 case NL80211_IFTYPE_MONITOR:
553 case NL80211_IFTYPE_P2P_DEVICE:
554 case NL80211_IFTYPE_NAN:
555 case NL80211_IFTYPE_UNSPECIFIED:
556 case NUM_NL80211_IFTYPES:
557 case NL80211_IFTYPE_P2P_CLIENT:
558 case NL80211_IFTYPE_P2P_GO:
559 case NL80211_IFTYPE_OCB:
560 /* shouldn't happen */
561 WARN_ON_ONCE(1);
562 break;
563 }
564
565 err = ieee80211_key_link(key, link, sta);
566 /* KRACK protection, shouldn't happen but just silently accept key */
567 if (err == -EALREADY)
568 err = 0;
569
570 return err;
571}
572
573static struct ieee80211_key *
574ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id,
575 u8 key_idx, bool pairwise, const u8 *mac_addr)
576{
577 struct ieee80211_local *local __maybe_unused = sdata->local;
578 struct ieee80211_link_data *link = &sdata->deflink;
579 struct ieee80211_key *key;
580
581 if (link_id >= 0) {
582 link = sdata_dereference(sdata->link[link_id], sdata);
583 if (!link)
584 return NULL;
585 }
586
587 if (mac_addr) {
588 struct sta_info *sta;
589 struct link_sta_info *link_sta;
590
591 sta = sta_info_get_bss(sdata, addr: mac_addr);
592 if (!sta)
593 return NULL;
594
595 if (link_id >= 0) {
596 link_sta = rcu_dereference_check(sta->link[link_id],
597 lockdep_is_held(&local->hw.wiphy->mtx));
598 if (!link_sta)
599 return NULL;
600 } else {
601 link_sta = &sta->deflink;
602 }
603
604 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
605 return wiphy_dereference(local->hw.wiphy,
606 sta->ptk[key_idx]);
607
608 if (!pairwise &&
609 key_idx < NUM_DEFAULT_KEYS +
610 NUM_DEFAULT_MGMT_KEYS +
611 NUM_DEFAULT_BEACON_KEYS)
612 return wiphy_dereference(local->hw.wiphy,
613 link_sta->gtk[key_idx]);
614
615 return NULL;
616 }
617
618 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
619 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
620
621 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]);
622 if (key)
623 return key;
624
625 /* or maybe it was a WEP key */
626 if (key_idx < NUM_DEFAULT_KEYS)
627 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
628
629 return NULL;
630}
631
632static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
633 int link_id, u8 key_idx, bool pairwise,
634 const u8 *mac_addr)
635{
636 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
637 struct ieee80211_local *local = sdata->local;
638 struct ieee80211_key *key;
639
640 lockdep_assert_wiphy(local->hw.wiphy);
641
642 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
643 if (!key)
644 return -ENOENT;
645
646 ieee80211_key_free(key, delay_tailroom: sdata->vif.type == NL80211_IFTYPE_STATION);
647
648 return 0;
649}
650
651static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
652 int link_id, u8 key_idx, bool pairwise,
653 const u8 *mac_addr, void *cookie,
654 void (*callback)(void *cookie,
655 struct key_params *params))
656{
657 struct ieee80211_sub_if_data *sdata;
658 u8 seq[6] = {0};
659 struct key_params params;
660 struct ieee80211_key *key;
661 u64 pn64;
662 u32 iv32;
663 u16 iv16;
664 int err = -ENOENT;
665 struct ieee80211_key_seq kseq = {};
666
667 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
668
669 rcu_read_lock();
670
671 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
672 if (!key)
673 goto out;
674
675 memset(&params, 0, sizeof(params));
676
677 params.cipher = key->conf.cipher;
678
679 switch (key->conf.cipher) {
680 case WLAN_CIPHER_SUITE_TKIP:
681 pn64 = atomic64_read(v: &key->conf.tx_pn);
682 iv32 = TKIP_PN_TO_IV32(pn64);
683 iv16 = TKIP_PN_TO_IV16(pn64);
684
685 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
686 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
687 drv_get_key_seq(local: sdata->local, key, seq: &kseq);
688 iv32 = kseq.tkip.iv32;
689 iv16 = kseq.tkip.iv16;
690 }
691
692 seq[0] = iv16 & 0xff;
693 seq[1] = (iv16 >> 8) & 0xff;
694 seq[2] = iv32 & 0xff;
695 seq[3] = (iv32 >> 8) & 0xff;
696 seq[4] = (iv32 >> 16) & 0xff;
697 seq[5] = (iv32 >> 24) & 0xff;
698 params.seq = seq;
699 params.seq_len = 6;
700 break;
701 case WLAN_CIPHER_SUITE_CCMP:
702 case WLAN_CIPHER_SUITE_CCMP_256:
703 case WLAN_CIPHER_SUITE_AES_CMAC:
704 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
705 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
706 offsetof(typeof(kseq), aes_cmac));
707 fallthrough;
708 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
709 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
710 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
711 offsetof(typeof(kseq), aes_gmac));
712 fallthrough;
713 case WLAN_CIPHER_SUITE_GCMP:
714 case WLAN_CIPHER_SUITE_GCMP_256:
715 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
716 offsetof(typeof(kseq), gcmp));
717
718 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
719 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
720 drv_get_key_seq(local: sdata->local, key, seq: &kseq);
721 memcpy(seq, kseq.ccmp.pn, 6);
722 } else {
723 pn64 = atomic64_read(v: &key->conf.tx_pn);
724 seq[0] = pn64;
725 seq[1] = pn64 >> 8;
726 seq[2] = pn64 >> 16;
727 seq[3] = pn64 >> 24;
728 seq[4] = pn64 >> 32;
729 seq[5] = pn64 >> 40;
730 }
731 params.seq = seq;
732 params.seq_len = 6;
733 break;
734 default:
735 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
736 break;
737 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
738 break;
739 drv_get_key_seq(local: sdata->local, key, seq: &kseq);
740 params.seq = kseq.hw.seq;
741 params.seq_len = kseq.hw.seq_len;
742 break;
743 }
744
745 params.key = key->conf.key;
746 params.key_len = key->conf.keylen;
747
748 callback(cookie, &params);
749 err = 0;
750
751 out:
752 rcu_read_unlock();
753 return err;
754}
755
756static int ieee80211_config_default_key(struct wiphy *wiphy,
757 struct net_device *dev,
758 int link_id, u8 key_idx, bool uni,
759 bool multi)
760{
761 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
762 struct ieee80211_link_data *link =
763 ieee80211_link_or_deflink(sdata, link_id, require_valid: false);
764
765 if (IS_ERR(ptr: link))
766 return PTR_ERR(ptr: link);
767
768 ieee80211_set_default_key(link, idx: key_idx, uni, multi);
769
770 return 0;
771}
772
773static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
774 struct net_device *dev,
775 int link_id, u8 key_idx)
776{
777 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
778 struct ieee80211_link_data *link =
779 ieee80211_link_or_deflink(sdata, link_id, require_valid: true);
780
781 if (IS_ERR(ptr: link))
782 return PTR_ERR(ptr: link);
783
784 ieee80211_set_default_mgmt_key(link, idx: key_idx);
785
786 return 0;
787}
788
789static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
790 struct net_device *dev,
791 int link_id, u8 key_idx)
792{
793 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
794 struct ieee80211_link_data *link =
795 ieee80211_link_or_deflink(sdata, link_id, require_valid: true);
796
797 if (IS_ERR(ptr: link))
798 return PTR_ERR(ptr: link);
799
800 ieee80211_set_default_beacon_key(link, idx: key_idx);
801
802 return 0;
803}
804
805void sta_set_rate_info_tx(struct sta_info *sta,
806 const struct ieee80211_tx_rate *rate,
807 struct rate_info *rinfo)
808{
809 rinfo->flags = 0;
810 if (rate->flags & IEEE80211_TX_RC_MCS) {
811 rinfo->flags |= RATE_INFO_FLAGS_MCS;
812 rinfo->mcs = rate->idx;
813 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
814 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
815 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
816 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
817 } else {
818 struct ieee80211_supported_band *sband;
819
820 sband = ieee80211_get_sband(sdata: sta->sdata);
821 WARN_ON_ONCE(sband && !sband->bitrates);
822 if (sband && sband->bitrates)
823 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
824 }
825 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
826 rinfo->bw = RATE_INFO_BW_40;
827 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
828 rinfo->bw = RATE_INFO_BW_80;
829 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
830 rinfo->bw = RATE_INFO_BW_160;
831 else
832 rinfo->bw = RATE_INFO_BW_20;
833 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
834 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
835}
836
837static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
838 int idx, u8 *mac, struct station_info *sinfo)
839{
840 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
841 struct ieee80211_local *local = sdata->local;
842 struct sta_info *sta;
843 int ret = -ENOENT;
844
845 lockdep_assert_wiphy(local->hw.wiphy);
846
847 sta = sta_info_get_by_idx(sdata, idx);
848 if (sta) {
849 ret = 0;
850 memcpy(mac, sta->sta.addr, ETH_ALEN);
851 sta_set_sinfo(sta, sinfo, tidstats: true);
852 }
853
854 return ret;
855}
856
857static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
858 int idx, struct survey_info *survey)
859{
860 struct ieee80211_local *local = wdev_priv(wdev: dev->ieee80211_ptr);
861
862 return drv_get_survey(local, idx, survey);
863}
864
865static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
866 const u8 *mac, struct station_info *sinfo)
867{
868 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
869 struct ieee80211_local *local = sdata->local;
870 struct sta_info *sta;
871 int ret = -ENOENT;
872
873 lockdep_assert_wiphy(local->hw.wiphy);
874
875 sta = sta_info_get_bss(sdata, addr: mac);
876 if (sta) {
877 ret = 0;
878 sta_set_sinfo(sta, sinfo, tidstats: true);
879 }
880
881 return ret;
882}
883
884static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
885 struct cfg80211_chan_def *chandef)
886{
887 struct ieee80211_local *local = wiphy_priv(wiphy);
888 struct ieee80211_sub_if_data *sdata;
889 struct ieee80211_chan_req chanreq = { .oper = *chandef };
890 int ret;
891
892 lockdep_assert_wiphy(local->hw.wiphy);
893
894 if (cfg80211_chandef_identical(chandef1: &local->monitor_chanreq.oper,
895 chandef2: &chanreq.oper))
896 return 0;
897
898 sdata = wiphy_dereference(local->hw.wiphy,
899 local->monitor_sdata);
900 if (!sdata)
901 goto done;
902
903 if (cfg80211_chandef_identical(chandef1: &sdata->vif.bss_conf.chanreq.oper,
904 chandef2: &chanreq.oper))
905 return 0;
906
907 ieee80211_link_release_channel(link: &sdata->deflink);
908 ret = ieee80211_link_use_channel(link: &sdata->deflink, req: &chanreq,
909 mode: IEEE80211_CHANCTX_EXCLUSIVE);
910 if (ret)
911 return ret;
912done:
913 local->monitor_chanreq = chanreq;
914 return 0;
915}
916
917static int
918ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
919 const u8 *resp, size_t resp_len,
920 const struct ieee80211_csa_settings *csa,
921 const struct ieee80211_color_change_settings *cca,
922 struct ieee80211_link_data *link)
923{
924 struct probe_resp *new, *old;
925
926 if (!resp || !resp_len)
927 return 1;
928
929 old = sdata_dereference(link->u.ap.probe_resp, sdata);
930
931 new = kzalloc(size: sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
932 if (!new)
933 return -ENOMEM;
934
935 new->len = resp_len;
936 memcpy(new->data, resp, resp_len);
937
938 if (csa)
939 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
940 csa->n_counter_offsets_presp *
941 sizeof(new->cntdwn_counter_offsets[0]));
942 else if (cca)
943 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
944
945 rcu_assign_pointer(link->u.ap.probe_resp, new);
946 if (old)
947 kfree_rcu(old, rcu_head);
948
949 return 0;
950}
951
952static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
953 struct cfg80211_fils_discovery *params,
954 struct ieee80211_link_data *link,
955 struct ieee80211_bss_conf *link_conf,
956 u64 *changed)
957{
958 struct fils_discovery_data *new, *old = NULL;
959 struct ieee80211_fils_discovery *fd;
960
961 if (!params->update)
962 return 0;
963
964 fd = &link_conf->fils_discovery;
965 fd->min_interval = params->min_interval;
966 fd->max_interval = params->max_interval;
967
968 old = sdata_dereference(link->u.ap.fils_discovery, sdata);
969 if (old)
970 kfree_rcu(old, rcu_head);
971
972 if (params->tmpl && params->tmpl_len) {
973 new = kzalloc(size: sizeof(*new) + params->tmpl_len, GFP_KERNEL);
974 if (!new)
975 return -ENOMEM;
976 new->len = params->tmpl_len;
977 memcpy(new->data, params->tmpl, params->tmpl_len);
978 rcu_assign_pointer(link->u.ap.fils_discovery, new);
979 } else {
980 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
981 }
982
983 *changed |= BSS_CHANGED_FILS_DISCOVERY;
984 return 0;
985}
986
987static int
988ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
989 struct cfg80211_unsol_bcast_probe_resp *params,
990 struct ieee80211_link_data *link,
991 struct ieee80211_bss_conf *link_conf,
992 u64 *changed)
993{
994 struct unsol_bcast_probe_resp_data *new, *old = NULL;
995
996 if (!params->update)
997 return 0;
998
999 link_conf->unsol_bcast_probe_resp_interval = params->interval;
1000
1001 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
1002 if (old)
1003 kfree_rcu(old, rcu_head);
1004
1005 if (params->tmpl && params->tmpl_len) {
1006 new = kzalloc(size: sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1007 if (!new)
1008 return -ENOMEM;
1009 new->len = params->tmpl_len;
1010 memcpy(new->data, params->tmpl, params->tmpl_len);
1011 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
1012 } else {
1013 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1014 }
1015
1016 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1017 return 0;
1018}
1019
1020static int ieee80211_set_ftm_responder_params(
1021 struct ieee80211_sub_if_data *sdata,
1022 const u8 *lci, size_t lci_len,
1023 const u8 *civicloc, size_t civicloc_len,
1024 struct ieee80211_bss_conf *link_conf)
1025{
1026 struct ieee80211_ftm_responder_params *new, *old;
1027 u8 *pos;
1028 int len;
1029
1030 if (!lci_len && !civicloc_len)
1031 return 0;
1032
1033 old = link_conf->ftmr_params;
1034 len = lci_len + civicloc_len;
1035
1036 new = kzalloc(size: sizeof(*new) + len, GFP_KERNEL);
1037 if (!new)
1038 return -ENOMEM;
1039
1040 pos = (u8 *)(new + 1);
1041 if (lci_len) {
1042 new->lci_len = lci_len;
1043 new->lci = pos;
1044 memcpy(pos, lci, lci_len);
1045 pos += lci_len;
1046 }
1047
1048 if (civicloc_len) {
1049 new->civicloc_len = civicloc_len;
1050 new->civicloc = pos;
1051 memcpy(pos, civicloc, civicloc_len);
1052 pos += civicloc_len;
1053 }
1054
1055 link_conf->ftmr_params = new;
1056 kfree(objp: old);
1057
1058 return 0;
1059}
1060
1061static int
1062ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
1063 struct cfg80211_mbssid_elems *src)
1064{
1065 int i, offset = 0;
1066
1067 for (i = 0; i < src->cnt; i++) {
1068 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1069 dst->elem[i].len = src->elem[i].len;
1070 dst->elem[i].data = pos + offset;
1071 offset += dst->elem[i].len;
1072 }
1073 dst->cnt = src->cnt;
1074
1075 return offset;
1076}
1077
1078static int
1079ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst,
1080 struct cfg80211_rnr_elems *src)
1081{
1082 int i, offset = 0;
1083
1084 for (i = 0; i < src->cnt; i++) {
1085 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1086 dst->elem[i].len = src->elem[i].len;
1087 dst->elem[i].data = pos + offset;
1088 offset += dst->elem[i].len;
1089 }
1090 dst->cnt = src->cnt;
1091
1092 return offset;
1093}
1094
1095static int
1096ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1097 struct ieee80211_link_data *link,
1098 struct cfg80211_beacon_data *params,
1099 const struct ieee80211_csa_settings *csa,
1100 const struct ieee80211_color_change_settings *cca,
1101 u64 *changed)
1102{
1103 struct cfg80211_mbssid_elems *mbssid = NULL;
1104 struct cfg80211_rnr_elems *rnr = NULL;
1105 struct beacon_data *new, *old;
1106 int new_head_len, new_tail_len;
1107 int size, err;
1108 u64 _changed = BSS_CHANGED_BEACON;
1109 struct ieee80211_bss_conf *link_conf = link->conf;
1110
1111 old = sdata_dereference(link->u.ap.beacon, sdata);
1112
1113 /* Need to have a beacon head if we don't have one yet */
1114 if (!params->head && !old)
1115 return -EINVAL;
1116
1117 /* new or old head? */
1118 if (params->head)
1119 new_head_len = params->head_len;
1120 else
1121 new_head_len = old->head_len;
1122
1123 /* new or old tail? */
1124 if (params->tail || !old)
1125 /* params->tail_len will be zero for !params->tail */
1126 new_tail_len = params->tail_len;
1127 else
1128 new_tail_len = old->tail_len;
1129
1130 size = sizeof(*new) + new_head_len + new_tail_len;
1131
1132 /* new or old multiple BSSID elements? */
1133 if (params->mbssid_ies) {
1134 mbssid = params->mbssid_ies;
1135 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1136 if (params->rnr_ies) {
1137 rnr = params->rnr_ies;
1138 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1139 }
1140 size += ieee80211_get_mbssid_beacon_len(elems: mbssid, rnr_elems: rnr,
1141 i: mbssid->cnt);
1142 } else if (old && old->mbssid_ies) {
1143 mbssid = old->mbssid_ies;
1144 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1145 if (old && old->rnr_ies) {
1146 rnr = old->rnr_ies;
1147 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1148 }
1149 size += ieee80211_get_mbssid_beacon_len(elems: mbssid, rnr_elems: rnr,
1150 i: mbssid->cnt);
1151 }
1152
1153 new = kzalloc(size, GFP_KERNEL);
1154 if (!new)
1155 return -ENOMEM;
1156
1157 /* start filling the new info now */
1158
1159 /*
1160 * pointers go into the block we allocated,
1161 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies
1162 */
1163 new->head = ((u8 *) new) + sizeof(*new);
1164 new->tail = new->head + new_head_len;
1165 new->head_len = new_head_len;
1166 new->tail_len = new_tail_len;
1167 /* copy in optional mbssid_ies */
1168 if (mbssid) {
1169 u8 *pos = new->tail + new->tail_len;
1170
1171 new->mbssid_ies = (void *)pos;
1172 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1173 pos += ieee80211_copy_mbssid_beacon(pos, dst: new->mbssid_ies,
1174 src: mbssid);
1175 if (rnr) {
1176 new->rnr_ies = (void *)pos;
1177 pos += struct_size(new->rnr_ies, elem, rnr->cnt);
1178 ieee80211_copy_rnr_beacon(pos, dst: new->rnr_ies, src: rnr);
1179 }
1180 /* update bssid_indicator */
1181 link_conf->bssid_indicator =
1182 ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1183 }
1184
1185 if (csa) {
1186 new->cntdwn_current_counter = csa->count;
1187 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1188 csa->n_counter_offsets_beacon *
1189 sizeof(new->cntdwn_counter_offsets[0]));
1190 } else if (cca) {
1191 new->cntdwn_current_counter = cca->count;
1192 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1193 }
1194
1195 /* copy in head */
1196 if (params->head)
1197 memcpy(new->head, params->head, new_head_len);
1198 else
1199 memcpy(new->head, old->head, new_head_len);
1200
1201 /* copy in optional tail */
1202 if (params->tail)
1203 memcpy(new->tail, params->tail, new_tail_len);
1204 else
1205 if (old)
1206 memcpy(new->tail, old->tail, new_tail_len);
1207
1208 err = ieee80211_set_probe_resp(sdata, resp: params->probe_resp,
1209 resp_len: params->probe_resp_len, csa, cca, link);
1210 if (err < 0) {
1211 kfree(objp: new);
1212 return err;
1213 }
1214 if (err == 0)
1215 _changed |= BSS_CHANGED_AP_PROBE_RESP;
1216
1217 if (params->ftm_responder != -1) {
1218 link_conf->ftm_responder = params->ftm_responder;
1219 err = ieee80211_set_ftm_responder_params(sdata,
1220 lci: params->lci,
1221 lci_len: params->lci_len,
1222 civicloc: params->civicloc,
1223 civicloc_len: params->civicloc_len,
1224 link_conf);
1225
1226 if (err < 0) {
1227 kfree(objp: new);
1228 return err;
1229 }
1230
1231 _changed |= BSS_CHANGED_FTM_RESPONDER;
1232 }
1233
1234 rcu_assign_pointer(link->u.ap.beacon, new);
1235 sdata->u.ap.active = true;
1236
1237 if (old)
1238 kfree_rcu(old, rcu_head);
1239
1240 *changed |= _changed;
1241 return 0;
1242}
1243
1244static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata)
1245{
1246 struct ieee80211_link_data *link;
1247 u8 link_id, num = 0;
1248
1249 if (sdata->vif.type != NL80211_IFTYPE_AP &&
1250 sdata->vif.type != NL80211_IFTYPE_P2P_GO)
1251 return num;
1252
1253 if (!sdata->vif.valid_links)
1254 return num;
1255
1256 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
1257 link = sdata_dereference(sdata->link[link_id], sdata);
1258 if (!link)
1259 continue;
1260
1261 if (sdata_dereference(link->u.ap.beacon, sdata))
1262 num++;
1263 }
1264
1265 return num;
1266}
1267
1268static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1269 struct cfg80211_ap_settings *params)
1270{
1271 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1272 struct ieee80211_local *local = sdata->local;
1273 struct beacon_data *old;
1274 struct ieee80211_sub_if_data *vlan;
1275 u64 changed = BSS_CHANGED_BEACON_INT |
1276 BSS_CHANGED_BEACON_ENABLED |
1277 BSS_CHANGED_BEACON |
1278 BSS_CHANGED_P2P_PS |
1279 BSS_CHANGED_TXPOWER |
1280 BSS_CHANGED_TWT;
1281 int i, err;
1282 int prev_beacon_int;
1283 unsigned int link_id = params->beacon.link_id;
1284 struct ieee80211_link_data *link;
1285 struct ieee80211_bss_conf *link_conf;
1286 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
1287
1288 lockdep_assert_wiphy(local->hw.wiphy);
1289
1290 link = sdata_dereference(sdata->link[link_id], sdata);
1291 if (!link)
1292 return -ENOLINK;
1293
1294 link_conf = link->conf;
1295
1296 old = sdata_dereference(link->u.ap.beacon, sdata);
1297 if (old)
1298 return -EALREADY;
1299
1300 if (params->smps_mode != NL80211_SMPS_OFF)
1301 return -EOPNOTSUPP;
1302
1303 link->smps_mode = IEEE80211_SMPS_OFF;
1304
1305 link->needed_rx_chains = sdata->local->rx_chains;
1306
1307 prev_beacon_int = link_conf->beacon_int;
1308 link_conf->beacon_int = params->beacon_interval;
1309
1310 if (params->ht_cap)
1311 link_conf->ht_ldpc =
1312 params->ht_cap->cap_info &
1313 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING);
1314
1315 if (params->vht_cap) {
1316 link_conf->vht_ldpc =
1317 params->vht_cap->vht_cap_info &
1318 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC);
1319 link_conf->vht_su_beamformer =
1320 params->vht_cap->vht_cap_info &
1321 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
1322 link_conf->vht_su_beamformee =
1323 params->vht_cap->vht_cap_info &
1324 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
1325 link_conf->vht_mu_beamformer =
1326 params->vht_cap->vht_cap_info &
1327 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
1328 link_conf->vht_mu_beamformee =
1329 params->vht_cap->vht_cap_info &
1330 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
1331 }
1332
1333 if (params->he_cap && params->he_oper) {
1334 link_conf->he_support = true;
1335 link_conf->htc_trig_based_pkt_ext =
1336 le32_get_bits(v: params->he_oper->he_oper_params,
1337 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1338 link_conf->frame_time_rts_th =
1339 le32_get_bits(v: params->he_oper->he_oper_params,
1340 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1341 changed |= BSS_CHANGED_HE_OBSS_PD;
1342
1343 if (params->beacon.he_bss_color.enabled)
1344 changed |= BSS_CHANGED_HE_BSS_COLOR;
1345 }
1346
1347 if (params->he_cap) {
1348 link_conf->he_ldpc =
1349 params->he_cap->phy_cap_info[1] &
1350 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
1351 link_conf->he_su_beamformer =
1352 params->he_cap->phy_cap_info[3] &
1353 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
1354 link_conf->he_su_beamformee =
1355 params->he_cap->phy_cap_info[4] &
1356 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
1357 link_conf->he_mu_beamformer =
1358 params->he_cap->phy_cap_info[4] &
1359 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
1360 link_conf->he_full_ul_mumimo =
1361 params->he_cap->phy_cap_info[2] &
1362 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
1363 }
1364
1365 if (params->eht_cap) {
1366 if (!link_conf->he_support)
1367 return -EOPNOTSUPP;
1368
1369 link_conf->eht_support = true;
1370
1371 link_conf->eht_su_beamformer =
1372 params->eht_cap->fixed.phy_cap_info[0] &
1373 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER;
1374 link_conf->eht_su_beamformee =
1375 params->eht_cap->fixed.phy_cap_info[0] &
1376 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
1377 link_conf->eht_mu_beamformer =
1378 params->eht_cap->fixed.phy_cap_info[7] &
1379 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
1380 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
1381 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ);
1382 } else {
1383 link_conf->eht_su_beamformer = false;
1384 link_conf->eht_su_beamformee = false;
1385 link_conf->eht_mu_beamformer = false;
1386 }
1387
1388 if (sdata->vif.type == NL80211_IFTYPE_AP &&
1389 params->mbssid_config.tx_wdev) {
1390 err = ieee80211_set_ap_mbssid_options(sdata,
1391 params: params->mbssid_config,
1392 link_conf);
1393 if (err)
1394 return err;
1395 }
1396
1397 err = ieee80211_link_use_channel(link, req: &chanreq,
1398 mode: IEEE80211_CHANCTX_SHARED);
1399 if (!err)
1400 ieee80211_link_copy_chanctx_to_vlans(link, clear: false);
1401 if (err) {
1402 link_conf->beacon_int = prev_beacon_int;
1403 return err;
1404 }
1405
1406 /*
1407 * Apply control port protocol, this allows us to
1408 * not encrypt dynamic WEP control frames.
1409 */
1410 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1411 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1412 sdata->control_port_over_nl80211 =
1413 params->crypto.control_port_over_nl80211;
1414 sdata->control_port_no_preauth =
1415 params->crypto.control_port_no_preauth;
1416
1417 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1418 vlan->control_port_protocol =
1419 params->crypto.control_port_ethertype;
1420 vlan->control_port_no_encrypt =
1421 params->crypto.control_port_no_encrypt;
1422 vlan->control_port_over_nl80211 =
1423 params->crypto.control_port_over_nl80211;
1424 vlan->control_port_no_preauth =
1425 params->crypto.control_port_no_preauth;
1426 }
1427
1428 link_conf->dtim_period = params->dtim_period;
1429 link_conf->enable_beacon = true;
1430 link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1431 link_conf->twt_responder = params->twt_responder;
1432 link_conf->he_obss_pd = params->he_obss_pd;
1433 link_conf->he_bss_color = params->beacon.he_bss_color;
1434 sdata->vif.cfg.s1g = params->chandef.chan->band ==
1435 NL80211_BAND_S1GHZ;
1436
1437 sdata->vif.cfg.ssid_len = params->ssid_len;
1438 if (params->ssid_len)
1439 memcpy(sdata->vif.cfg.ssid, params->ssid,
1440 params->ssid_len);
1441 link_conf->hidden_ssid =
1442 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1443
1444 memset(&link_conf->p2p_noa_attr, 0,
1445 sizeof(link_conf->p2p_noa_attr));
1446 link_conf->p2p_noa_attr.oppps_ctwindow =
1447 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1448 if (params->p2p_opp_ps)
1449 link_conf->p2p_noa_attr.oppps_ctwindow |=
1450 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1451
1452 sdata->beacon_rate_set = false;
1453 if (wiphy_ext_feature_isset(wiphy: local->hw.wiphy,
1454 ftidx: NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1455 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1456 sdata->beacon_rateidx_mask[i] =
1457 params->beacon_rate.control[i].legacy;
1458 if (sdata->beacon_rateidx_mask[i])
1459 sdata->beacon_rate_set = true;
1460 }
1461 }
1462
1463 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1464 link_conf->beacon_tx_rate = params->beacon_rate;
1465
1466 err = ieee80211_assign_beacon(sdata, link, params: &params->beacon, NULL, NULL,
1467 changed: &changed);
1468 if (err < 0)
1469 goto error;
1470
1471 err = ieee80211_set_fils_discovery(sdata, params: &params->fils_discovery,
1472 link, link_conf, changed: &changed);
1473 if (err < 0)
1474 goto error;
1475
1476 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1477 params: &params->unsol_bcast_probe_resp,
1478 link, link_conf, changed: &changed);
1479 if (err < 0)
1480 goto error;
1481
1482 err = drv_start_ap(local: sdata->local, sdata, link_conf);
1483 if (err) {
1484 old = sdata_dereference(link->u.ap.beacon, sdata);
1485
1486 if (old)
1487 kfree_rcu(old, rcu_head);
1488 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1489 sdata->u.ap.active = false;
1490 goto error;
1491 }
1492
1493 ieee80211_recalc_dtim(local, sdata);
1494 ieee80211_vif_cfg_change_notify(sdata, changed: BSS_CHANGED_SSID);
1495 ieee80211_link_info_change_notify(sdata, link, changed);
1496
1497 if (ieee80211_num_beaconing_links(sdata) <= 1)
1498 netif_carrier_on(dev);
1499
1500 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1501 netif_carrier_on(dev: vlan->dev);
1502
1503 return 0;
1504
1505error:
1506 ieee80211_link_release_channel(link);
1507
1508 return err;
1509}
1510
1511static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1512 struct cfg80211_ap_update *params)
1513
1514{
1515 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1516 struct ieee80211_link_data *link;
1517 struct cfg80211_beacon_data *beacon = &params->beacon;
1518 struct beacon_data *old;
1519 int err;
1520 struct ieee80211_bss_conf *link_conf;
1521 u64 changed = 0;
1522
1523 lockdep_assert_wiphy(wiphy);
1524
1525 link = sdata_dereference(sdata->link[beacon->link_id], sdata);
1526 if (!link)
1527 return -ENOLINK;
1528
1529 link_conf = link->conf;
1530
1531 /* don't allow changing the beacon while a countdown is in place - offset
1532 * of channel switch counter may change
1533 */
1534 if (link_conf->csa_active || link_conf->color_change_active)
1535 return -EBUSY;
1536
1537 old = sdata_dereference(link->u.ap.beacon, sdata);
1538 if (!old)
1539 return -ENOENT;
1540
1541 err = ieee80211_assign_beacon(sdata, link, params: beacon, NULL, NULL,
1542 changed: &changed);
1543 if (err < 0)
1544 return err;
1545
1546 err = ieee80211_set_fils_discovery(sdata, params: &params->fils_discovery,
1547 link, link_conf, changed: &changed);
1548 if (err < 0)
1549 return err;
1550
1551 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1552 params: &params->unsol_bcast_probe_resp,
1553 link, link_conf, changed: &changed);
1554 if (err < 0)
1555 return err;
1556
1557 if (beacon->he_bss_color_valid &&
1558 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1559 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled;
1560 changed |= BSS_CHANGED_HE_BSS_COLOR;
1561 }
1562
1563 ieee80211_link_info_change_notify(sdata, link, changed);
1564 return 0;
1565}
1566
1567static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1568{
1569 if (!link->u.ap.next_beacon)
1570 return;
1571
1572 kfree(objp: link->u.ap.next_beacon->mbssid_ies);
1573 kfree(objp: link->u.ap.next_beacon->rnr_ies);
1574 kfree(objp: link->u.ap.next_beacon);
1575 link->u.ap.next_beacon = NULL;
1576}
1577
1578static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1579 unsigned int link_id)
1580{
1581 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1582 struct ieee80211_sub_if_data *vlan;
1583 struct ieee80211_local *local = sdata->local;
1584 struct beacon_data *old_beacon;
1585 struct probe_resp *old_probe_resp;
1586 struct fils_discovery_data *old_fils_discovery;
1587 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1588 struct cfg80211_chan_def chandef;
1589 struct ieee80211_link_data *link =
1590 sdata_dereference(sdata->link[link_id], sdata);
1591 struct ieee80211_bss_conf *link_conf = link->conf;
1592 LIST_HEAD(keys);
1593
1594 lockdep_assert_wiphy(local->hw.wiphy);
1595
1596 old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1597 if (!old_beacon)
1598 return -ENOENT;
1599 old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1600 sdata);
1601 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1602 sdata);
1603 old_unsol_bcast_probe_resp =
1604 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1605 sdata);
1606
1607 /* abort any running channel switch or color change */
1608 link_conf->csa_active = false;
1609 link_conf->color_change_active = false;
1610 if (sdata->csa_blocked_tx) {
1611 ieee80211_wake_vif_queues(local, sdata,
1612 reason: IEEE80211_QUEUE_STOP_REASON_CSA);
1613 sdata->csa_blocked_tx = false;
1614 }
1615
1616 ieee80211_free_next_beacon(link);
1617
1618 /* turn off carrier for this interface and dependent VLANs */
1619 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1620 netif_carrier_off(dev: vlan->dev);
1621
1622 if (ieee80211_num_beaconing_links(sdata) <= 1)
1623 netif_carrier_off(dev);
1624
1625 /* remove beacon and probe response */
1626 sdata->u.ap.active = false;
1627 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1628 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1629 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1630 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1631 kfree_rcu(old_beacon, rcu_head);
1632 if (old_probe_resp)
1633 kfree_rcu(old_probe_resp, rcu_head);
1634 if (old_fils_discovery)
1635 kfree_rcu(old_fils_discovery, rcu_head);
1636 if (old_unsol_bcast_probe_resp)
1637 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1638
1639 kfree(objp: link_conf->ftmr_params);
1640 link_conf->ftmr_params = NULL;
1641
1642 sdata->vif.mbssid_tx_vif = NULL;
1643 link_conf->bssid_index = 0;
1644 link_conf->nontransmitted = false;
1645 link_conf->ema_ap = false;
1646 link_conf->bssid_indicator = 0;
1647
1648 __sta_info_flush(sdata, vlans: true, link_id);
1649
1650 ieee80211_remove_link_keys(link, keys: &keys);
1651 if (!list_empty(head: &keys)) {
1652 synchronize_net();
1653 ieee80211_free_key_list(local, keys: &keys);
1654 }
1655
1656 link_conf->enable_beacon = false;
1657 sdata->beacon_rate_set = false;
1658 sdata->vif.cfg.ssid_len = 0;
1659 clear_bit(nr: SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, addr: &sdata->state);
1660 ieee80211_link_info_change_notify(sdata, link,
1661 changed: BSS_CHANGED_BEACON_ENABLED);
1662
1663 if (sdata->wdev.cac_started) {
1664 chandef = link_conf->chanreq.oper;
1665 wiphy_delayed_work_cancel(wiphy, dwork: &link->dfs_cac_timer_work);
1666 cfg80211_cac_event(netdev: sdata->dev, chandef: &chandef,
1667 event: NL80211_RADAR_CAC_ABORTED,
1668 GFP_KERNEL);
1669 }
1670
1671 drv_stop_ap(local: sdata->local, sdata, link_conf);
1672
1673 /* free all potentially still buffered bcast frames */
1674 local->total_ps_buffered -= skb_queue_len(list_: &sdata->u.ap.ps.bc_buf);
1675 ieee80211_purge_tx_queue(hw: &local->hw, skbs: &sdata->u.ap.ps.bc_buf);
1676
1677 ieee80211_link_copy_chanctx_to_vlans(link, clear: true);
1678 ieee80211_link_release_channel(link);
1679
1680 return 0;
1681}
1682
1683static int sta_apply_auth_flags(struct ieee80211_local *local,
1684 struct sta_info *sta,
1685 u32 mask, u32 set)
1686{
1687 int ret;
1688
1689 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1690 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1691 !test_sta_flag(sta, flag: WLAN_STA_AUTH)) {
1692 ret = sta_info_move_state(sta, new_state: IEEE80211_STA_AUTH);
1693 if (ret)
1694 return ret;
1695 }
1696
1697 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1698 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1699 !test_sta_flag(sta, flag: WLAN_STA_ASSOC)) {
1700 /*
1701 * When peer becomes associated, init rate control as
1702 * well. Some drivers require rate control initialized
1703 * before drv_sta_state() is called.
1704 */
1705 if (!test_sta_flag(sta, flag: WLAN_STA_RATE_CONTROL))
1706 rate_control_rate_init(sta);
1707
1708 ret = sta_info_move_state(sta, new_state: IEEE80211_STA_ASSOC);
1709 if (ret)
1710 return ret;
1711 }
1712
1713 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1714 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1715 ret = sta_info_move_state(sta, new_state: IEEE80211_STA_AUTHORIZED);
1716 else if (test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED))
1717 ret = sta_info_move_state(sta, new_state: IEEE80211_STA_ASSOC);
1718 else
1719 ret = 0;
1720 if (ret)
1721 return ret;
1722 }
1723
1724 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1725 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1726 test_sta_flag(sta, flag: WLAN_STA_ASSOC)) {
1727 ret = sta_info_move_state(sta, new_state: IEEE80211_STA_AUTH);
1728 if (ret)
1729 return ret;
1730 }
1731
1732 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1733 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1734 test_sta_flag(sta, flag: WLAN_STA_AUTH)) {
1735 ret = sta_info_move_state(sta, new_state: IEEE80211_STA_NONE);
1736 if (ret)
1737 return ret;
1738 }
1739
1740 return 0;
1741}
1742
1743static void sta_apply_mesh_params(struct ieee80211_local *local,
1744 struct sta_info *sta,
1745 struct station_parameters *params)
1746{
1747#ifdef CONFIG_MAC80211_MESH
1748 struct ieee80211_sub_if_data *sdata = sta->sdata;
1749 u64 changed = 0;
1750
1751 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1752 switch (params->plink_state) {
1753 case NL80211_PLINK_ESTAB:
1754 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1755 changed = mesh_plink_inc_estab_count(sdata);
1756 sta->mesh->plink_state = params->plink_state;
1757 sta->mesh->aid = params->peer_aid;
1758
1759 ieee80211_mps_sta_status_update(sta);
1760 changed |= ieee80211_mps_set_sta_local_pm(sta,
1761 pm: sdata->u.mesh.mshcfg.power_mode);
1762
1763 ewma_mesh_tx_rate_avg_init(e: &sta->mesh->tx_rate_avg);
1764 /* init at low value */
1765 ewma_mesh_tx_rate_avg_add(e: &sta->mesh->tx_rate_avg, val: 10);
1766
1767 break;
1768 case NL80211_PLINK_LISTEN:
1769 case NL80211_PLINK_BLOCKED:
1770 case NL80211_PLINK_OPN_SNT:
1771 case NL80211_PLINK_OPN_RCVD:
1772 case NL80211_PLINK_CNF_RCVD:
1773 case NL80211_PLINK_HOLDING:
1774 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1775 changed = mesh_plink_dec_estab_count(sdata);
1776 sta->mesh->plink_state = params->plink_state;
1777
1778 ieee80211_mps_sta_status_update(sta);
1779 changed |= ieee80211_mps_set_sta_local_pm(sta,
1780 pm: NL80211_MESH_POWER_UNKNOWN);
1781 break;
1782 default:
1783 /* nothing */
1784 break;
1785 }
1786 }
1787
1788 switch (params->plink_action) {
1789 case NL80211_PLINK_ACTION_NO_ACTION:
1790 /* nothing */
1791 break;
1792 case NL80211_PLINK_ACTION_OPEN:
1793 changed |= mesh_plink_open(sta);
1794 break;
1795 case NL80211_PLINK_ACTION_BLOCK:
1796 changed |= mesh_plink_block(sta);
1797 break;
1798 }
1799
1800 if (params->local_pm)
1801 changed |= ieee80211_mps_set_sta_local_pm(sta,
1802 pm: params->local_pm);
1803
1804 ieee80211_mbss_info_change_notify(sdata, changed);
1805#endif
1806}
1807
1808static int sta_link_apply_parameters(struct ieee80211_local *local,
1809 struct sta_info *sta, bool new_link,
1810 struct link_station_parameters *params)
1811{
1812 int ret = 0;
1813 struct ieee80211_supported_band *sband;
1814 struct ieee80211_sub_if_data *sdata = sta->sdata;
1815 u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1816 struct ieee80211_link_data *link =
1817 sdata_dereference(sdata->link[link_id], sdata);
1818 struct link_sta_info *link_sta =
1819 rcu_dereference_protected(sta->link[link_id],
1820 lockdep_is_held(&local->hw.wiphy->mtx));
1821
1822 /*
1823 * If there are no changes, then accept a link that exist,
1824 * unless it's a new link.
1825 */
1826 if (params->link_id >= 0 && !new_link &&
1827 !params->link_mac && !params->txpwr_set &&
1828 !params->supported_rates_len &&
1829 !params->ht_capa && !params->vht_capa &&
1830 !params->he_capa && !params->eht_capa &&
1831 !params->opmode_notif_used)
1832 return 0;
1833
1834 if (!link || !link_sta)
1835 return -EINVAL;
1836
1837 sband = ieee80211_get_link_sband(link);
1838 if (!sband)
1839 return -EINVAL;
1840
1841 if (params->link_mac) {
1842 if (new_link) {
1843 memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1844 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1845 } else if (!ether_addr_equal(addr1: link_sta->addr,
1846 addr2: params->link_mac)) {
1847 return -EINVAL;
1848 }
1849 } else if (new_link) {
1850 return -EINVAL;
1851 }
1852
1853 if (params->txpwr_set) {
1854 link_sta->pub->txpwr.type = params->txpwr.type;
1855 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1856 link_sta->pub->txpwr.power = params->txpwr.power;
1857 ret = drv_sta_set_txpwr(local, sdata, sta);
1858 if (ret)
1859 return ret;
1860 }
1861
1862 if (params->supported_rates &&
1863 params->supported_rates_len) {
1864 ieee80211_parse_bitrates(width: link->conf->chanreq.oper.width,
1865 sband, srates: params->supported_rates,
1866 srates_len: params->supported_rates_len,
1867 rates: &link_sta->pub->supp_rates[sband->band]);
1868 }
1869
1870 if (params->ht_capa)
1871 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1872 ht_cap_ie: params->ht_capa, link_sta);
1873
1874 /* VHT can override some HT caps such as the A-MSDU max length */
1875 if (params->vht_capa)
1876 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1877 vht_cap_ie: params->vht_capa, NULL,
1878 link_sta);
1879
1880 if (params->he_capa)
1881 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1882 he_cap_ie: (void *)params->he_capa,
1883 he_cap_len: params->he_capa_len,
1884 he_6ghz_capa: (void *)params->he_6ghz_capa,
1885 link_sta);
1886
1887 if (params->he_capa && params->eht_capa)
1888 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1889 he_cap_ie: (u8 *)params->he_capa,
1890 he_cap_len: params->he_capa_len,
1891 eht_cap_ie_elem: params->eht_capa,
1892 eht_cap_len: params->eht_capa_len,
1893 link_sta);
1894
1895 if (params->opmode_notif_used) {
1896 /* returned value is only needed for rc update, but the
1897 * rc isn't initialized here yet, so ignore it
1898 */
1899 __ieee80211_vht_handle_opmode(sdata, sta: link_sta,
1900 opmode: params->opmode_notif,
1901 band: sband->band);
1902 }
1903
1904 ieee80211_sta_init_nss(link_sta);
1905
1906 return ret;
1907}
1908
1909static int sta_apply_parameters(struct ieee80211_local *local,
1910 struct sta_info *sta,
1911 struct station_parameters *params)
1912{
1913 struct ieee80211_sub_if_data *sdata = sta->sdata;
1914 u32 mask, set;
1915 int ret = 0;
1916
1917 mask = params->sta_flags_mask;
1918 set = params->sta_flags_set;
1919
1920 if (ieee80211_vif_is_mesh(vif: &sdata->vif)) {
1921 /*
1922 * In mesh mode, ASSOCIATED isn't part of the nl80211
1923 * API but must follow AUTHENTICATED for driver state.
1924 */
1925 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1926 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1927 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1928 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1929 } else if (test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER)) {
1930 /*
1931 * TDLS -- everything follows authorized, but
1932 * only becoming authorized is possible, not
1933 * going back
1934 */
1935 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1936 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1937 BIT(NL80211_STA_FLAG_ASSOCIATED);
1938 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1939 BIT(NL80211_STA_FLAG_ASSOCIATED);
1940 }
1941 }
1942
1943 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1944 local->hw.queues >= IEEE80211_NUM_ACS)
1945 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1946
1947 /* auth flags will be set later for TDLS,
1948 * and for unassociated stations that move to associated */
1949 if (!test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) &&
1950 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1951 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1952 ret = sta_apply_auth_flags(local, sta, mask, set);
1953 if (ret)
1954 return ret;
1955 }
1956
1957 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1958 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1959 set_sta_flag(sta, flag: WLAN_STA_SHORT_PREAMBLE);
1960 else
1961 clear_sta_flag(sta, flag: WLAN_STA_SHORT_PREAMBLE);
1962 }
1963
1964 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1965 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1966 if (set & BIT(NL80211_STA_FLAG_MFP))
1967 set_sta_flag(sta, flag: WLAN_STA_MFP);
1968 else
1969 clear_sta_flag(sta, flag: WLAN_STA_MFP);
1970 }
1971
1972 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1973 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1974 set_sta_flag(sta, flag: WLAN_STA_TDLS_PEER);
1975 else
1976 clear_sta_flag(sta, flag: WLAN_STA_TDLS_PEER);
1977 }
1978
1979 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU))
1980 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU);
1981
1982 /* mark TDLS channel switch support, if the AP allows it */
1983 if (test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) &&
1984 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
1985 params->ext_capab_len >= 4 &&
1986 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1987 set_sta_flag(sta, flag: WLAN_STA_TDLS_CHAN_SWITCH);
1988
1989 if (test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) &&
1990 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1991 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1992 params->ext_capab_len >= 8 &&
1993 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1994 set_sta_flag(sta, flag: WLAN_STA_TDLS_WIDER_BW);
1995
1996 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1997 sta->sta.uapsd_queues = params->uapsd_queues;
1998 sta->sta.max_sp = params->max_sp;
1999 }
2000
2001 ieee80211_sta_set_max_amsdu_subframes(sta, ext_capab: params->ext_capab,
2002 ext_capab_len: params->ext_capab_len);
2003
2004 /*
2005 * cfg80211 validates this (1-2007) and allows setting the AID
2006 * only when creating a new station entry
2007 */
2008 if (params->aid)
2009 sta->sta.aid = params->aid;
2010
2011 /*
2012 * Some of the following updates would be racy if called on an
2013 * existing station, via ieee80211_change_station(). However,
2014 * all such changes are rejected by cfg80211 except for updates
2015 * changing the supported rates on an existing but not yet used
2016 * TDLS peer.
2017 */
2018
2019 if (params->listen_interval >= 0)
2020 sta->listen_interval = params->listen_interval;
2021
2022 ret = sta_link_apply_parameters(local, sta, new_link: false,
2023 params: &params->link_sta_params);
2024 if (ret)
2025 return ret;
2026
2027 if (params->support_p2p_ps >= 0)
2028 sta->sta.support_p2p_ps = params->support_p2p_ps;
2029
2030 if (ieee80211_vif_is_mesh(vif: &sdata->vif))
2031 sta_apply_mesh_params(local, sta, params);
2032
2033 if (params->airtime_weight)
2034 sta->airtime_weight = params->airtime_weight;
2035
2036 /* set the STA state after all sta info from usermode has been set */
2037 if (test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) ||
2038 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
2039 ret = sta_apply_auth_flags(local, sta, mask, set);
2040 if (ret)
2041 return ret;
2042 }
2043
2044 /* Mark the STA as MLO if MLD MAC address is available */
2045 if (params->link_sta_params.mld_mac)
2046 sta->sta.mlo = true;
2047
2048 return 0;
2049}
2050
2051static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2052 const u8 *mac,
2053 struct station_parameters *params)
2054{
2055 struct ieee80211_local *local = wiphy_priv(wiphy);
2056 struct sta_info *sta;
2057 struct ieee80211_sub_if_data *sdata;
2058 int err;
2059
2060 lockdep_assert_wiphy(local->hw.wiphy);
2061
2062 if (params->vlan) {
2063 sdata = IEEE80211_DEV_TO_SUB_IF(dev: params->vlan);
2064
2065 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2066 sdata->vif.type != NL80211_IFTYPE_AP)
2067 return -EINVAL;
2068 } else
2069 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2070
2071 if (ether_addr_equal(addr1: mac, addr2: sdata->vif.addr))
2072 return -EINVAL;
2073
2074 if (!is_valid_ether_addr(addr: mac))
2075 return -EINVAL;
2076
2077 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
2078 sdata->vif.type == NL80211_IFTYPE_STATION &&
2079 !sdata->u.mgd.associated)
2080 return -EINVAL;
2081
2082 /*
2083 * If we have a link ID, it can be a non-MLO station on an AP MLD,
2084 * but we need to have a link_mac in that case as well, so use the
2085 * STA's MAC address in that case.
2086 */
2087 if (params->link_sta_params.link_id >= 0)
2088 sta = sta_info_alloc_with_link(sdata, mld_addr: mac,
2089 link_id: params->link_sta_params.link_id,
2090 link_addr: params->link_sta_params.link_mac ?: mac,
2091 GFP_KERNEL);
2092 else
2093 sta = sta_info_alloc(sdata, addr: mac, GFP_KERNEL);
2094
2095 if (!sta)
2096 return -ENOMEM;
2097
2098 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2099 sta->sta.tdls = true;
2100
2101 /* Though the mutex is not needed here (since the station is not
2102 * visible yet), sta_apply_parameters (and inner functions) require
2103 * the mutex due to other paths.
2104 */
2105 err = sta_apply_parameters(local, sta, params);
2106 if (err) {
2107 sta_info_free(local, sta);
2108 return err;
2109 }
2110
2111 /*
2112 * for TDLS and for unassociated station, rate control should be
2113 * initialized only when rates are known and station is marked
2114 * authorized/associated
2115 */
2116 if (!test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) &&
2117 test_sta_flag(sta, flag: WLAN_STA_ASSOC))
2118 rate_control_rate_init(sta);
2119
2120 return sta_info_insert(sta);
2121}
2122
2123static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2124 struct station_del_parameters *params)
2125{
2126 struct ieee80211_sub_if_data *sdata;
2127
2128 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2129
2130 if (params->mac)
2131 return sta_info_destroy_addr_bss(sdata, addr: params->mac);
2132
2133 sta_info_flush(sdata, link_id: params->link_id);
2134 return 0;
2135}
2136
2137static int ieee80211_change_station(struct wiphy *wiphy,
2138 struct net_device *dev, const u8 *mac,
2139 struct station_parameters *params)
2140{
2141 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2142 struct ieee80211_local *local = wiphy_priv(wiphy);
2143 struct sta_info *sta;
2144 struct ieee80211_sub_if_data *vlansdata;
2145 enum cfg80211_station_type statype;
2146 int err;
2147
2148 lockdep_assert_wiphy(local->hw.wiphy);
2149
2150 sta = sta_info_get_bss(sdata, addr: mac);
2151 if (!sta)
2152 return -ENOENT;
2153
2154 switch (sdata->vif.type) {
2155 case NL80211_IFTYPE_MESH_POINT:
2156 if (sdata->u.mesh.user_mpm)
2157 statype = CFG80211_STA_MESH_PEER_USER;
2158 else
2159 statype = CFG80211_STA_MESH_PEER_KERNEL;
2160 break;
2161 case NL80211_IFTYPE_ADHOC:
2162 statype = CFG80211_STA_IBSS;
2163 break;
2164 case NL80211_IFTYPE_STATION:
2165 if (!test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER)) {
2166 statype = CFG80211_STA_AP_STA;
2167 break;
2168 }
2169 if (test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED))
2170 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2171 else
2172 statype = CFG80211_STA_TDLS_PEER_SETUP;
2173 break;
2174 case NL80211_IFTYPE_AP:
2175 case NL80211_IFTYPE_AP_VLAN:
2176 if (test_sta_flag(sta, flag: WLAN_STA_ASSOC))
2177 statype = CFG80211_STA_AP_CLIENT;
2178 else
2179 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2180 break;
2181 default:
2182 return -EOPNOTSUPP;
2183 }
2184
2185 err = cfg80211_check_station_change(wiphy, params, statype);
2186 if (err)
2187 return err;
2188
2189 if (params->vlan && params->vlan != sta->sdata->dev) {
2190 vlansdata = IEEE80211_DEV_TO_SUB_IF(dev: params->vlan);
2191
2192 if (params->vlan->ieee80211_ptr->use_4addr) {
2193 if (vlansdata->u.vlan.sta)
2194 return -EBUSY;
2195
2196 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2197 __ieee80211_check_fast_rx_iface(sdata: vlansdata);
2198 drv_sta_set_4addr(local, sdata: sta->sdata, sta: &sta->sta, enabled: true);
2199 }
2200
2201 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2202 sta->sdata->u.vlan.sta)
2203 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2204
2205 if (test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED))
2206 ieee80211_vif_dec_num_mcast(sdata: sta->sdata);
2207
2208 sta->sdata = vlansdata;
2209 ieee80211_check_fast_rx(sta);
2210 ieee80211_check_fast_xmit(sta);
2211
2212 if (test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED)) {
2213 ieee80211_vif_inc_num_mcast(sdata: sta->sdata);
2214 cfg80211_send_layer2_update(dev: sta->sdata->dev,
2215 addr: sta->sta.addr);
2216 }
2217 }
2218
2219 err = sta_apply_parameters(local, sta, params);
2220 if (err)
2221 return err;
2222
2223 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2224 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2225 ieee80211_recalc_ps(local);
2226 ieee80211_recalc_ps_vif(sdata);
2227 }
2228
2229 return 0;
2230}
2231
2232#ifdef CONFIG_MAC80211_MESH
2233static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2234 const u8 *dst, const u8 *next_hop)
2235{
2236 struct ieee80211_sub_if_data *sdata;
2237 struct mesh_path *mpath;
2238 struct sta_info *sta;
2239
2240 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2241
2242 rcu_read_lock();
2243 sta = sta_info_get(sdata, addr: next_hop);
2244 if (!sta) {
2245 rcu_read_unlock();
2246 return -ENOENT;
2247 }
2248
2249 mpath = mesh_path_add(sdata, dst);
2250 if (IS_ERR(ptr: mpath)) {
2251 rcu_read_unlock();
2252 return PTR_ERR(ptr: mpath);
2253 }
2254
2255 mesh_path_fix_nexthop(mpath, next_hop: sta);
2256
2257 rcu_read_unlock();
2258 return 0;
2259}
2260
2261static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2262 const u8 *dst)
2263{
2264 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2265
2266 if (dst)
2267 return mesh_path_del(sdata, addr: dst);
2268
2269 mesh_path_flush_by_iface(sdata);
2270 return 0;
2271}
2272
2273static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2274 const u8 *dst, const u8 *next_hop)
2275{
2276 struct ieee80211_sub_if_data *sdata;
2277 struct mesh_path *mpath;
2278 struct sta_info *sta;
2279
2280 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2281
2282 rcu_read_lock();
2283
2284 sta = sta_info_get(sdata, addr: next_hop);
2285 if (!sta) {
2286 rcu_read_unlock();
2287 return -ENOENT;
2288 }
2289
2290 mpath = mesh_path_lookup(sdata, dst);
2291 if (!mpath) {
2292 rcu_read_unlock();
2293 return -ENOENT;
2294 }
2295
2296 mesh_path_fix_nexthop(mpath, next_hop: sta);
2297
2298 rcu_read_unlock();
2299 return 0;
2300}
2301
2302static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2303 struct mpath_info *pinfo)
2304{
2305 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2306
2307 if (next_hop_sta)
2308 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2309 else
2310 eth_zero_addr(addr: next_hop);
2311
2312 memset(pinfo, 0, sizeof(*pinfo));
2313
2314 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2315
2316 pinfo->filled = MPATH_INFO_FRAME_QLEN |
2317 MPATH_INFO_SN |
2318 MPATH_INFO_METRIC |
2319 MPATH_INFO_EXPTIME |
2320 MPATH_INFO_DISCOVERY_TIMEOUT |
2321 MPATH_INFO_DISCOVERY_RETRIES |
2322 MPATH_INFO_FLAGS |
2323 MPATH_INFO_HOP_COUNT |
2324 MPATH_INFO_PATH_CHANGE;
2325
2326 pinfo->frame_qlen = mpath->frame_queue.qlen;
2327 pinfo->sn = mpath->sn;
2328 pinfo->metric = mpath->metric;
2329 if (time_before(jiffies, mpath->exp_time))
2330 pinfo->exptime = jiffies_to_msecs(j: mpath->exp_time - jiffies);
2331 pinfo->discovery_timeout =
2332 jiffies_to_msecs(j: mpath->discovery_timeout);
2333 pinfo->discovery_retries = mpath->discovery_retries;
2334 if (mpath->flags & MESH_PATH_ACTIVE)
2335 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2336 if (mpath->flags & MESH_PATH_RESOLVING)
2337 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2338 if (mpath->flags & MESH_PATH_SN_VALID)
2339 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2340 if (mpath->flags & MESH_PATH_FIXED)
2341 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2342 if (mpath->flags & MESH_PATH_RESOLVED)
2343 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2344 pinfo->hop_count = mpath->hop_count;
2345 pinfo->path_change_count = mpath->path_change_count;
2346}
2347
2348static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2349 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2350
2351{
2352 struct ieee80211_sub_if_data *sdata;
2353 struct mesh_path *mpath;
2354
2355 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2356
2357 rcu_read_lock();
2358 mpath = mesh_path_lookup(sdata, dst);
2359 if (!mpath) {
2360 rcu_read_unlock();
2361 return -ENOENT;
2362 }
2363 memcpy(dst, mpath->dst, ETH_ALEN);
2364 mpath_set_pinfo(mpath, next_hop, pinfo);
2365 rcu_read_unlock();
2366 return 0;
2367}
2368
2369static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2370 int idx, u8 *dst, u8 *next_hop,
2371 struct mpath_info *pinfo)
2372{
2373 struct ieee80211_sub_if_data *sdata;
2374 struct mesh_path *mpath;
2375
2376 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2377
2378 rcu_read_lock();
2379 mpath = mesh_path_lookup_by_idx(sdata, idx);
2380 if (!mpath) {
2381 rcu_read_unlock();
2382 return -ENOENT;
2383 }
2384 memcpy(dst, mpath->dst, ETH_ALEN);
2385 mpath_set_pinfo(mpath, next_hop, pinfo);
2386 rcu_read_unlock();
2387 return 0;
2388}
2389
2390static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2391 struct mpath_info *pinfo)
2392{
2393 memset(pinfo, 0, sizeof(*pinfo));
2394 memcpy(mpp, mpath->mpp, ETH_ALEN);
2395
2396 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2397}
2398
2399static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2400 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2401
2402{
2403 struct ieee80211_sub_if_data *sdata;
2404 struct mesh_path *mpath;
2405
2406 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2407
2408 rcu_read_lock();
2409 mpath = mpp_path_lookup(sdata, dst);
2410 if (!mpath) {
2411 rcu_read_unlock();
2412 return -ENOENT;
2413 }
2414 memcpy(dst, mpath->dst, ETH_ALEN);
2415 mpp_set_pinfo(mpath, mpp, pinfo);
2416 rcu_read_unlock();
2417 return 0;
2418}
2419
2420static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2421 int idx, u8 *dst, u8 *mpp,
2422 struct mpath_info *pinfo)
2423{
2424 struct ieee80211_sub_if_data *sdata;
2425 struct mesh_path *mpath;
2426
2427 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2428
2429 rcu_read_lock();
2430 mpath = mpp_path_lookup_by_idx(sdata, idx);
2431 if (!mpath) {
2432 rcu_read_unlock();
2433 return -ENOENT;
2434 }
2435 memcpy(dst, mpath->dst, ETH_ALEN);
2436 mpp_set_pinfo(mpath, mpp, pinfo);
2437 rcu_read_unlock();
2438 return 0;
2439}
2440
2441static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2442 struct net_device *dev,
2443 struct mesh_config *conf)
2444{
2445 struct ieee80211_sub_if_data *sdata;
2446 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2447
2448 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2449 return 0;
2450}
2451
2452static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2453{
2454 return (mask >> (parm-1)) & 0x1;
2455}
2456
2457static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2458 const struct mesh_setup *setup)
2459{
2460 u8 *new_ie;
2461 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2462 struct ieee80211_sub_if_data, u.mesh);
2463 int i;
2464
2465 /* allocate information elements */
2466 new_ie = NULL;
2467
2468 if (setup->ie_len) {
2469 new_ie = kmemdup(p: setup->ie, size: setup->ie_len,
2470 GFP_KERNEL);
2471 if (!new_ie)
2472 return -ENOMEM;
2473 }
2474 ifmsh->ie_len = setup->ie_len;
2475 ifmsh->ie = new_ie;
2476
2477 /* now copy the rest of the setup parameters */
2478 ifmsh->mesh_id_len = setup->mesh_id_len;
2479 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2480 ifmsh->mesh_sp_id = setup->sync_method;
2481 ifmsh->mesh_pp_id = setup->path_sel_proto;
2482 ifmsh->mesh_pm_id = setup->path_metric;
2483 ifmsh->user_mpm = setup->user_mpm;
2484 ifmsh->mesh_auth_id = setup->auth_id;
2485 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2486 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2487 if (setup->is_authenticated)
2488 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2489 if (setup->is_secure)
2490 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2491
2492 /* mcast rate setting in Mesh Node */
2493 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2494 sizeof(setup->mcast_rate));
2495 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2496
2497 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2498 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2499
2500 sdata->beacon_rate_set = false;
2501 if (wiphy_ext_feature_isset(wiphy: sdata->local->hw.wiphy,
2502 ftidx: NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2503 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2504 sdata->beacon_rateidx_mask[i] =
2505 setup->beacon_rate.control[i].legacy;
2506 if (sdata->beacon_rateidx_mask[i])
2507 sdata->beacon_rate_set = true;
2508 }
2509 }
2510
2511 return 0;
2512}
2513
2514static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2515 struct net_device *dev, u32 mask,
2516 const struct mesh_config *nconf)
2517{
2518 struct mesh_config *conf;
2519 struct ieee80211_sub_if_data *sdata;
2520 struct ieee80211_if_mesh *ifmsh;
2521
2522 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2523 ifmsh = &sdata->u.mesh;
2524
2525 /* Set the config options which we are interested in setting */
2526 conf = &(sdata->u.mesh.mshcfg);
2527 if (_chg_mesh_attr(parm: NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2528 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2529 if (_chg_mesh_attr(parm: NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2530 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2531 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2532 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2533 if (_chg_mesh_attr(parm: NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2534 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2535 if (_chg_mesh_attr(parm: NL80211_MESHCONF_MAX_RETRIES, mask))
2536 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2537 if (_chg_mesh_attr(parm: NL80211_MESHCONF_TTL, mask))
2538 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2539 if (_chg_mesh_attr(parm: NL80211_MESHCONF_ELEMENT_TTL, mask))
2540 conf->element_ttl = nconf->element_ttl;
2541 if (_chg_mesh_attr(parm: NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2542 if (ifmsh->user_mpm)
2543 return -EBUSY;
2544 conf->auto_open_plinks = nconf->auto_open_plinks;
2545 }
2546 if (_chg_mesh_attr(parm: NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2547 conf->dot11MeshNbrOffsetMaxNeighbor =
2548 nconf->dot11MeshNbrOffsetMaxNeighbor;
2549 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2550 conf->dot11MeshHWMPmaxPREQretries =
2551 nconf->dot11MeshHWMPmaxPREQretries;
2552 if (_chg_mesh_attr(parm: NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2553 conf->path_refresh_time = nconf->path_refresh_time;
2554 if (_chg_mesh_attr(parm: NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2555 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2556 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2557 conf->dot11MeshHWMPactivePathTimeout =
2558 nconf->dot11MeshHWMPactivePathTimeout;
2559 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2560 conf->dot11MeshHWMPpreqMinInterval =
2561 nconf->dot11MeshHWMPpreqMinInterval;
2562 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2563 conf->dot11MeshHWMPperrMinInterval =
2564 nconf->dot11MeshHWMPperrMinInterval;
2565 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2566 mask))
2567 conf->dot11MeshHWMPnetDiameterTraversalTime =
2568 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2569 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2570 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2571 ieee80211_mesh_root_setup(ifmsh);
2572 }
2573 if (_chg_mesh_attr(parm: NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2574 /* our current gate announcement implementation rides on root
2575 * announcements, so require this ifmsh to also be a root node
2576 * */
2577 if (nconf->dot11MeshGateAnnouncementProtocol &&
2578 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2579 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2580 ieee80211_mesh_root_setup(ifmsh);
2581 }
2582 conf->dot11MeshGateAnnouncementProtocol =
2583 nconf->dot11MeshGateAnnouncementProtocol;
2584 }
2585 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2586 conf->dot11MeshHWMPRannInterval =
2587 nconf->dot11MeshHWMPRannInterval;
2588 if (_chg_mesh_attr(parm: NL80211_MESHCONF_FORWARDING, mask))
2589 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2590 if (_chg_mesh_attr(parm: NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2591 /* our RSSI threshold implementation is supported only for
2592 * devices that report signal in dBm.
2593 */
2594 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2595 return -EOPNOTSUPP;
2596 conf->rssi_threshold = nconf->rssi_threshold;
2597 }
2598 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HT_OPMODE, mask)) {
2599 conf->ht_opmode = nconf->ht_opmode;
2600 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2601 ieee80211_link_info_change_notify(sdata, link: &sdata->deflink,
2602 changed: BSS_CHANGED_HT);
2603 }
2604 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2605 conf->dot11MeshHWMPactivePathToRootTimeout =
2606 nconf->dot11MeshHWMPactivePathToRootTimeout;
2607 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2608 conf->dot11MeshHWMProotInterval =
2609 nconf->dot11MeshHWMProotInterval;
2610 if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2611 conf->dot11MeshHWMPconfirmationInterval =
2612 nconf->dot11MeshHWMPconfirmationInterval;
2613 if (_chg_mesh_attr(parm: NL80211_MESHCONF_POWER_MODE, mask)) {
2614 conf->power_mode = nconf->power_mode;
2615 ieee80211_mps_local_status_update(sdata);
2616 }
2617 if (_chg_mesh_attr(parm: NL80211_MESHCONF_AWAKE_WINDOW, mask))
2618 conf->dot11MeshAwakeWindowDuration =
2619 nconf->dot11MeshAwakeWindowDuration;
2620 if (_chg_mesh_attr(parm: NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2621 conf->plink_timeout = nconf->plink_timeout;
2622 if (_chg_mesh_attr(parm: NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2623 conf->dot11MeshConnectedToMeshGate =
2624 nconf->dot11MeshConnectedToMeshGate;
2625 if (_chg_mesh_attr(parm: NL80211_MESHCONF_NOLEARN, mask))
2626 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2627 if (_chg_mesh_attr(parm: NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2628 conf->dot11MeshConnectedToAuthServer =
2629 nconf->dot11MeshConnectedToAuthServer;
2630 ieee80211_mbss_info_change_notify(sdata, changed: BSS_CHANGED_BEACON);
2631 return 0;
2632}
2633
2634static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2635 const struct mesh_config *conf,
2636 const struct mesh_setup *setup)
2637{
2638 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2639 struct ieee80211_chan_req chanreq = { .oper = setup->chandef };
2640 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2641 int err;
2642
2643 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2644
2645 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2646 err = copy_mesh_setup(ifmsh, setup);
2647 if (err)
2648 return err;
2649
2650 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2651
2652 /* can mesh use other SMPS modes? */
2653 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2654 sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2655
2656 err = ieee80211_link_use_channel(link: &sdata->deflink, req: &chanreq,
2657 mode: IEEE80211_CHANCTX_SHARED);
2658 if (err)
2659 return err;
2660
2661 return ieee80211_start_mesh(sdata);
2662}
2663
2664static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2665{
2666 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2667
2668 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2669
2670 ieee80211_stop_mesh(sdata);
2671 ieee80211_link_release_channel(link: &sdata->deflink);
2672 kfree(objp: sdata->u.mesh.ie);
2673
2674 return 0;
2675}
2676#endif
2677
2678static int ieee80211_change_bss(struct wiphy *wiphy,
2679 struct net_device *dev,
2680 struct bss_parameters *params)
2681{
2682 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2683 struct ieee80211_link_data *link;
2684 struct ieee80211_supported_band *sband;
2685 u64 changed = 0;
2686
2687 link = ieee80211_link_or_deflink(sdata, link_id: params->link_id, require_valid: true);
2688 if (IS_ERR(ptr: link))
2689 return PTR_ERR(ptr: link);
2690
2691 if (!sdata_dereference(link->u.ap.beacon, sdata))
2692 return -ENOENT;
2693
2694 sband = ieee80211_get_link_sband(link);
2695 if (!sband)
2696 return -EINVAL;
2697
2698 if (params->basic_rates) {
2699 if (!ieee80211_parse_bitrates(width: link->conf->chanreq.oper.width,
2700 sband: wiphy->bands[sband->band],
2701 srates: params->basic_rates,
2702 srates_len: params->basic_rates_len,
2703 rates: &link->conf->basic_rates))
2704 return -EINVAL;
2705 changed |= BSS_CHANGED_BASIC_RATES;
2706 ieee80211_check_rate_mask(link);
2707 }
2708
2709 if (params->use_cts_prot >= 0) {
2710 link->conf->use_cts_prot = params->use_cts_prot;
2711 changed |= BSS_CHANGED_ERP_CTS_PROT;
2712 }
2713 if (params->use_short_preamble >= 0) {
2714 link->conf->use_short_preamble = params->use_short_preamble;
2715 changed |= BSS_CHANGED_ERP_PREAMBLE;
2716 }
2717
2718 if (!link->conf->use_short_slot &&
2719 (sband->band == NL80211_BAND_5GHZ ||
2720 sband->band == NL80211_BAND_6GHZ)) {
2721 link->conf->use_short_slot = true;
2722 changed |= BSS_CHANGED_ERP_SLOT;
2723 }
2724
2725 if (params->use_short_slot_time >= 0) {
2726 link->conf->use_short_slot = params->use_short_slot_time;
2727 changed |= BSS_CHANGED_ERP_SLOT;
2728 }
2729
2730 if (params->ap_isolate >= 0) {
2731 if (params->ap_isolate)
2732 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2733 else
2734 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2735 ieee80211_check_fast_rx_iface(sdata);
2736 }
2737
2738 if (params->ht_opmode >= 0) {
2739 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2740 changed |= BSS_CHANGED_HT;
2741 }
2742
2743 if (params->p2p_ctwindow >= 0) {
2744 link->conf->p2p_noa_attr.oppps_ctwindow &=
2745 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2746 link->conf->p2p_noa_attr.oppps_ctwindow |=
2747 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2748 changed |= BSS_CHANGED_P2P_PS;
2749 }
2750
2751 if (params->p2p_opp_ps > 0) {
2752 link->conf->p2p_noa_attr.oppps_ctwindow |=
2753 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2754 changed |= BSS_CHANGED_P2P_PS;
2755 } else if (params->p2p_opp_ps == 0) {
2756 link->conf->p2p_noa_attr.oppps_ctwindow &=
2757 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2758 changed |= BSS_CHANGED_P2P_PS;
2759 }
2760
2761 ieee80211_link_info_change_notify(sdata, link, changed);
2762
2763 return 0;
2764}
2765
2766static int ieee80211_set_txq_params(struct wiphy *wiphy,
2767 struct net_device *dev,
2768 struct ieee80211_txq_params *params)
2769{
2770 struct ieee80211_local *local = wiphy_priv(wiphy);
2771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2772 struct ieee80211_link_data *link =
2773 ieee80211_link_or_deflink(sdata, link_id: params->link_id, require_valid: true);
2774 struct ieee80211_tx_queue_params p;
2775
2776 if (!local->ops->conf_tx)
2777 return -EOPNOTSUPP;
2778
2779 if (local->hw.queues < IEEE80211_NUM_ACS)
2780 return -EOPNOTSUPP;
2781
2782 if (IS_ERR(ptr: link))
2783 return PTR_ERR(ptr: link);
2784
2785 memset(&p, 0, sizeof(p));
2786 p.aifs = params->aifs;
2787 p.cw_max = params->cwmax;
2788 p.cw_min = params->cwmin;
2789 p.txop = params->txop;
2790
2791 /*
2792 * Setting tx queue params disables u-apsd because it's only
2793 * called in master mode.
2794 */
2795 p.uapsd = false;
2796
2797 ieee80211_regulatory_limit_wmm_params(sdata, qparam: &p, ac: params->ac);
2798
2799 link->tx_conf[params->ac] = p;
2800 if (drv_conf_tx(local, link, ac: params->ac, params: &p)) {
2801 wiphy_debug(local->hw.wiphy,
2802 "failed to set TX queue parameters for AC %d\n",
2803 params->ac);
2804 return -EINVAL;
2805 }
2806
2807 ieee80211_link_info_change_notify(sdata, link,
2808 changed: BSS_CHANGED_QOS);
2809
2810 return 0;
2811}
2812
2813#ifdef CONFIG_PM
2814static int ieee80211_suspend(struct wiphy *wiphy,
2815 struct cfg80211_wowlan *wowlan)
2816{
2817 return __ieee80211_suspend(hw: wiphy_priv(wiphy), wowlan);
2818}
2819
2820static int ieee80211_resume(struct wiphy *wiphy)
2821{
2822 return __ieee80211_resume(hw: wiphy_priv(wiphy));
2823}
2824#else
2825#define ieee80211_suspend NULL
2826#define ieee80211_resume NULL
2827#endif
2828
2829static int ieee80211_scan(struct wiphy *wiphy,
2830 struct cfg80211_scan_request *req)
2831{
2832 struct ieee80211_sub_if_data *sdata;
2833
2834 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev: req->wdev);
2835
2836 switch (ieee80211_vif_type_p2p(vif: &sdata->vif)) {
2837 case NL80211_IFTYPE_STATION:
2838 case NL80211_IFTYPE_ADHOC:
2839 case NL80211_IFTYPE_MESH_POINT:
2840 case NL80211_IFTYPE_P2P_CLIENT:
2841 case NL80211_IFTYPE_P2P_DEVICE:
2842 break;
2843 case NL80211_IFTYPE_P2P_GO:
2844 if (sdata->local->ops->hw_scan)
2845 break;
2846 /*
2847 * FIXME: implement NoA while scanning in software,
2848 * for now fall through to allow scanning only when
2849 * beaconing hasn't been configured yet
2850 */
2851 fallthrough;
2852 case NL80211_IFTYPE_AP:
2853 /*
2854 * If the scan has been forced (and the driver supports
2855 * forcing), don't care about being beaconing already.
2856 * This will create problems to the attached stations (e.g. all
2857 * the frames sent while scanning on other channel will be
2858 * lost)
2859 */
2860 if (sdata->deflink.u.ap.beacon &&
2861 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2862 !(req->flags & NL80211_SCAN_FLAG_AP)))
2863 return -EOPNOTSUPP;
2864 break;
2865 case NL80211_IFTYPE_NAN:
2866 default:
2867 return -EOPNOTSUPP;
2868 }
2869
2870 return ieee80211_request_scan(sdata, req);
2871}
2872
2873static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2874{
2875 ieee80211_scan_cancel(local: wiphy_priv(wiphy));
2876}
2877
2878static int
2879ieee80211_sched_scan_start(struct wiphy *wiphy,
2880 struct net_device *dev,
2881 struct cfg80211_sched_scan_request *req)
2882{
2883 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2884
2885 if (!sdata->local->ops->sched_scan_start)
2886 return -EOPNOTSUPP;
2887
2888 return ieee80211_request_sched_scan_start(sdata, req);
2889}
2890
2891static int
2892ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2893 u64 reqid)
2894{
2895 struct ieee80211_local *local = wiphy_priv(wiphy);
2896
2897 if (!local->ops->sched_scan_stop)
2898 return -EOPNOTSUPP;
2899
2900 return ieee80211_request_sched_scan_stop(local);
2901}
2902
2903static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2904 struct cfg80211_auth_request *req)
2905{
2906 return ieee80211_mgd_auth(sdata: IEEE80211_DEV_TO_SUB_IF(dev), req);
2907}
2908
2909static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2910 struct cfg80211_assoc_request *req)
2911{
2912 return ieee80211_mgd_assoc(sdata: IEEE80211_DEV_TO_SUB_IF(dev), req);
2913}
2914
2915static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2916 struct cfg80211_deauth_request *req)
2917{
2918 return ieee80211_mgd_deauth(sdata: IEEE80211_DEV_TO_SUB_IF(dev), req);
2919}
2920
2921static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2922 struct cfg80211_disassoc_request *req)
2923{
2924 return ieee80211_mgd_disassoc(sdata: IEEE80211_DEV_TO_SUB_IF(dev), req);
2925}
2926
2927static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2928 struct cfg80211_ibss_params *params)
2929{
2930 return ieee80211_ibss_join(sdata: IEEE80211_DEV_TO_SUB_IF(dev), params);
2931}
2932
2933static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2934{
2935 return ieee80211_ibss_leave(sdata: IEEE80211_DEV_TO_SUB_IF(dev));
2936}
2937
2938static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2939 struct ocb_setup *setup)
2940{
2941 return ieee80211_ocb_join(sdata: IEEE80211_DEV_TO_SUB_IF(dev), setup);
2942}
2943
2944static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2945{
2946 return ieee80211_ocb_leave(sdata: IEEE80211_DEV_TO_SUB_IF(dev));
2947}
2948
2949static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2950 int rate[NUM_NL80211_BANDS])
2951{
2952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2953
2954 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2955 sizeof(int) * NUM_NL80211_BANDS);
2956
2957 ieee80211_link_info_change_notify(sdata, link: &sdata->deflink,
2958 changed: BSS_CHANGED_MCAST_RATE);
2959
2960 return 0;
2961}
2962
2963static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2964{
2965 struct ieee80211_local *local = wiphy_priv(wiphy);
2966 int err;
2967
2968 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2969 ieee80211_check_fast_xmit_all(local);
2970
2971 err = drv_set_frag_threshold(local, value: wiphy->frag_threshold);
2972
2973 if (err) {
2974 ieee80211_check_fast_xmit_all(local);
2975 return err;
2976 }
2977 }
2978
2979 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2980 (changed & WIPHY_PARAM_DYN_ACK)) {
2981 s16 coverage_class;
2982
2983 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2984 wiphy->coverage_class : -1;
2985 err = drv_set_coverage_class(local, value: coverage_class);
2986
2987 if (err)
2988 return err;
2989 }
2990
2991 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2992 err = drv_set_rts_threshold(local, value: wiphy->rts_threshold);
2993
2994 if (err)
2995 return err;
2996 }
2997
2998 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2999 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
3000 return -EINVAL;
3001 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
3002 }
3003 if (changed & WIPHY_PARAM_RETRY_LONG) {
3004 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
3005 return -EINVAL;
3006 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
3007 }
3008 if (changed &
3009 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
3010 ieee80211_hw_config(local, changed: IEEE80211_CONF_CHANGE_RETRY_LIMITS);
3011
3012 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
3013 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
3014 WIPHY_PARAM_TXQ_QUANTUM))
3015 ieee80211_txq_set_params(local);
3016
3017 return 0;
3018}
3019
3020static int ieee80211_set_tx_power(struct wiphy *wiphy,
3021 struct wireless_dev *wdev,
3022 enum nl80211_tx_power_setting type, int mbm)
3023{
3024 struct ieee80211_local *local = wiphy_priv(wiphy);
3025 struct ieee80211_sub_if_data *sdata;
3026 enum nl80211_tx_power_setting txp_type = type;
3027 bool update_txp_type = false;
3028 bool has_monitor = false;
3029
3030 lockdep_assert_wiphy(local->hw.wiphy);
3031
3032 if (wdev) {
3033 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3034
3035 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3036 sdata = wiphy_dereference(local->hw.wiphy,
3037 local->monitor_sdata);
3038 if (!sdata)
3039 return -EOPNOTSUPP;
3040 }
3041
3042 switch (type) {
3043 case NL80211_TX_POWER_AUTOMATIC:
3044 sdata->deflink.user_power_level =
3045 IEEE80211_UNSET_POWER_LEVEL;
3046 txp_type = NL80211_TX_POWER_LIMITED;
3047 break;
3048 case NL80211_TX_POWER_LIMITED:
3049 case NL80211_TX_POWER_FIXED:
3050 if (mbm < 0 || (mbm % 100))
3051 return -EOPNOTSUPP;
3052 sdata->deflink.user_power_level = MBM_TO_DBM(mbm);
3053 break;
3054 }
3055
3056 if (txp_type != sdata->vif.bss_conf.txpower_type) {
3057 update_txp_type = true;
3058 sdata->vif.bss_conf.txpower_type = txp_type;
3059 }
3060
3061 ieee80211_recalc_txpower(sdata, update_bss: update_txp_type);
3062
3063 return 0;
3064 }
3065
3066 switch (type) {
3067 case NL80211_TX_POWER_AUTOMATIC:
3068 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
3069 txp_type = NL80211_TX_POWER_LIMITED;
3070 break;
3071 case NL80211_TX_POWER_LIMITED:
3072 case NL80211_TX_POWER_FIXED:
3073 if (mbm < 0 || (mbm % 100))
3074 return -EOPNOTSUPP;
3075 local->user_power_level = MBM_TO_DBM(mbm);
3076 break;
3077 }
3078
3079 list_for_each_entry(sdata, &local->interfaces, list) {
3080 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3081 has_monitor = true;
3082 continue;
3083 }
3084 sdata->deflink.user_power_level = local->user_power_level;
3085 if (txp_type != sdata->vif.bss_conf.txpower_type)
3086 update_txp_type = true;
3087 sdata->vif.bss_conf.txpower_type = txp_type;
3088 }
3089 list_for_each_entry(sdata, &local->interfaces, list) {
3090 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
3091 continue;
3092 ieee80211_recalc_txpower(sdata, update_bss: update_txp_type);
3093 }
3094
3095 if (has_monitor) {
3096 sdata = wiphy_dereference(local->hw.wiphy,
3097 local->monitor_sdata);
3098 if (sdata) {
3099 sdata->deflink.user_power_level = local->user_power_level;
3100 if (txp_type != sdata->vif.bss_conf.txpower_type)
3101 update_txp_type = true;
3102 sdata->vif.bss_conf.txpower_type = txp_type;
3103
3104 ieee80211_recalc_txpower(sdata, update_bss: update_txp_type);
3105 }
3106 }
3107
3108 return 0;
3109}
3110
3111static int ieee80211_get_tx_power(struct wiphy *wiphy,
3112 struct wireless_dev *wdev,
3113 int *dbm)
3114{
3115 struct ieee80211_local *local = wiphy_priv(wiphy);
3116 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3117
3118 if (local->ops->get_txpower)
3119 return drv_get_txpower(local, sdata, dbm);
3120
3121 if (local->emulate_chanctx)
3122 *dbm = local->hw.conf.power_level;
3123 else
3124 *dbm = sdata->vif.bss_conf.txpower;
3125
3126 /* INT_MIN indicates no power level was set yet */
3127 if (*dbm == INT_MIN)
3128 return -EINVAL;
3129
3130 return 0;
3131}
3132
3133static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3134{
3135 struct ieee80211_local *local = wiphy_priv(wiphy);
3136
3137 drv_rfkill_poll(local);
3138}
3139
3140#ifdef CONFIG_NL80211_TESTMODE
3141static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3142 struct wireless_dev *wdev,
3143 void *data, int len)
3144{
3145 struct ieee80211_local *local = wiphy_priv(wiphy);
3146 struct ieee80211_vif *vif = NULL;
3147
3148 if (!local->ops->testmode_cmd)
3149 return -EOPNOTSUPP;
3150
3151 if (wdev) {
3152 struct ieee80211_sub_if_data *sdata;
3153
3154 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3155 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3156 vif = &sdata->vif;
3157 }
3158
3159 return local->ops->testmode_cmd(&local->hw, vif, data, len);
3160}
3161
3162static int ieee80211_testmode_dump(struct wiphy *wiphy,
3163 struct sk_buff *skb,
3164 struct netlink_callback *cb,
3165 void *data, int len)
3166{
3167 struct ieee80211_local *local = wiphy_priv(wiphy);
3168
3169 if (!local->ops->testmode_dump)
3170 return -EOPNOTSUPP;
3171
3172 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3173}
3174#endif
3175
3176int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3177 struct ieee80211_link_data *link,
3178 enum ieee80211_smps_mode smps_mode)
3179{
3180 const u8 *ap;
3181 enum ieee80211_smps_mode old_req;
3182 int err;
3183 struct sta_info *sta;
3184 bool tdls_peer_found = false;
3185
3186 lockdep_assert_wiphy(sdata->local->hw.wiphy);
3187
3188 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3189 return -EINVAL;
3190
3191 if (!ieee80211_vif_link_active(vif: &sdata->vif, link_id: link->link_id))
3192 return 0;
3193
3194 old_req = link->u.mgd.req_smps;
3195 link->u.mgd.req_smps = smps_mode;
3196
3197 /* The driver indicated that EML is enabled for the interface, which
3198 * implies that SMPS flows towards the AP should be stopped.
3199 */
3200 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
3201 return 0;
3202
3203 if (old_req == smps_mode &&
3204 smps_mode != IEEE80211_SMPS_AUTOMATIC)
3205 return 0;
3206
3207 /*
3208 * If not associated, or current association is not an HT
3209 * association, there's no need to do anything, just store
3210 * the new value until we associate.
3211 */
3212 if (!sdata->u.mgd.associated ||
3213 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT)
3214 return 0;
3215
3216 ap = sdata->vif.cfg.ap_addr;
3217
3218 rcu_read_lock();
3219 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3220 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3221 !test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED))
3222 continue;
3223
3224 tdls_peer_found = true;
3225 break;
3226 }
3227 rcu_read_unlock();
3228
3229 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3230 if (tdls_peer_found || !sdata->u.mgd.powersave)
3231 smps_mode = IEEE80211_SMPS_OFF;
3232 else
3233 smps_mode = IEEE80211_SMPS_DYNAMIC;
3234 }
3235
3236 /* send SM PS frame to AP */
3237 err = ieee80211_send_smps_action(sdata, smps: smps_mode,
3238 da: ap, bssid: ap,
3239 link_id: ieee80211_vif_is_mld(vif: &sdata->vif) ?
3240 link->link_id : -1);
3241 if (err)
3242 link->u.mgd.req_smps = old_req;
3243 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3244 ieee80211_teardown_tdls_peers(link);
3245
3246 return err;
3247}
3248
3249static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3250 bool enabled, int timeout)
3251{
3252 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3253 struct ieee80211_local *local = wdev_priv(wdev: dev->ieee80211_ptr);
3254 unsigned int link_id;
3255
3256 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3257 return -EOPNOTSUPP;
3258
3259 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3260 return -EOPNOTSUPP;
3261
3262 if (enabled == sdata->u.mgd.powersave &&
3263 timeout == local->dynamic_ps_forced_timeout)
3264 return 0;
3265
3266 sdata->u.mgd.powersave = enabled;
3267 local->dynamic_ps_forced_timeout = timeout;
3268
3269 /* no change, but if automatic follow powersave */
3270 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3271 struct ieee80211_link_data *link;
3272
3273 link = sdata_dereference(sdata->link[link_id], sdata);
3274
3275 if (!link)
3276 continue;
3277 __ieee80211_request_smps_mgd(sdata, link,
3278 smps_mode: link->u.mgd.req_smps);
3279 }
3280
3281 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3282 ieee80211_hw_config(local, changed: IEEE80211_CONF_CHANGE_PS);
3283
3284 ieee80211_recalc_ps(local);
3285 ieee80211_recalc_ps_vif(sdata);
3286 ieee80211_check_fast_rx_iface(sdata);
3287
3288 return 0;
3289}
3290
3291static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata,
3292 struct ieee80211_link_data *link,
3293 s32 rssi_thold, u32 rssi_hyst,
3294 s32 rssi_low, s32 rssi_high)
3295{
3296 struct ieee80211_bss_conf *conf;
3297
3298 if (!link || !link->conf)
3299 return;
3300
3301 conf = link->conf;
3302
3303 if (rssi_thold && rssi_hyst &&
3304 rssi_thold == conf->cqm_rssi_thold &&
3305 rssi_hyst == conf->cqm_rssi_hyst)
3306 return;
3307
3308 conf->cqm_rssi_thold = rssi_thold;
3309 conf->cqm_rssi_hyst = rssi_hyst;
3310 conf->cqm_rssi_low = rssi_low;
3311 conf->cqm_rssi_high = rssi_high;
3312 link->u.mgd.last_cqm_event_signal = 0;
3313
3314 if (!ieee80211_vif_link_active(vif: &sdata->vif, link_id: link->link_id))
3315 return;
3316
3317 if (sdata->u.mgd.associated &&
3318 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3319 ieee80211_link_info_change_notify(sdata, link, changed: BSS_CHANGED_CQM);
3320}
3321
3322static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3323 struct net_device *dev,
3324 s32 rssi_thold, u32 rssi_hyst)
3325{
3326 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3327 struct ieee80211_vif *vif = &sdata->vif;
3328 int link_id;
3329
3330 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3331 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3332 return -EOPNOTSUPP;
3333
3334 /* For MLD, handle CQM change on all the active links */
3335 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3336 struct ieee80211_link_data *link =
3337 sdata_dereference(sdata->link[link_id], sdata);
3338
3339 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst,
3340 rssi_low: 0, rssi_high: 0);
3341 }
3342
3343 return 0;
3344}
3345
3346static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3347 struct net_device *dev,
3348 s32 rssi_low, s32 rssi_high)
3349{
3350 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3351 struct ieee80211_vif *vif = &sdata->vif;
3352 int link_id;
3353
3354 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)
3355 return -EOPNOTSUPP;
3356
3357 /* For MLD, handle CQM change on all the active links */
3358 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3359 struct ieee80211_link_data *link =
3360 sdata_dereference(sdata->link[link_id], sdata);
3361
3362 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold: 0, rssi_hyst: 0,
3363 rssi_low, rssi_high);
3364 }
3365
3366 return 0;
3367}
3368
3369static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3370 struct net_device *dev,
3371 unsigned int link_id,
3372 const u8 *addr,
3373 const struct cfg80211_bitrate_mask *mask)
3374{
3375 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3376 struct ieee80211_local *local = wdev_priv(wdev: dev->ieee80211_ptr);
3377 int i, ret;
3378
3379 if (!ieee80211_sdata_running(sdata))
3380 return -ENETDOWN;
3381
3382 /*
3383 * If active validate the setting and reject it if it doesn't leave
3384 * at least one basic rate usable, since we really have to be able
3385 * to send something, and if we're an AP we have to be able to do
3386 * so at a basic rate so that all clients can receive it.
3387 */
3388 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3389 sdata->vif.bss_conf.chanreq.oper.chan) {
3390 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3391 enum nl80211_band band;
3392
3393 band = sdata->vif.bss_conf.chanreq.oper.chan->band;
3394
3395 if (!(mask->control[band].legacy & basic_rates))
3396 return -EINVAL;
3397 }
3398
3399 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3400 ret = drv_set_bitrate_mask(local, sdata, mask);
3401 if (ret)
3402 return ret;
3403 }
3404
3405 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3406 struct ieee80211_supported_band *sband = wiphy->bands[i];
3407 int j;
3408
3409 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3410 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3411 sizeof(mask->control[i].ht_mcs));
3412 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3413 mask->control[i].vht_mcs,
3414 sizeof(mask->control[i].vht_mcs));
3415
3416 sdata->rc_has_mcs_mask[i] = false;
3417 sdata->rc_has_vht_mcs_mask[i] = false;
3418 if (!sband)
3419 continue;
3420
3421 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3422 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3423 sdata->rc_has_mcs_mask[i] = true;
3424 break;
3425 }
3426 }
3427
3428 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3429 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3430 sdata->rc_has_vht_mcs_mask[i] = true;
3431 break;
3432 }
3433 }
3434 }
3435
3436 return 0;
3437}
3438
3439static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3440 struct net_device *dev,
3441 struct cfg80211_chan_def *chandef,
3442 u32 cac_time_ms)
3443{
3444 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3445 struct ieee80211_chan_req chanreq = { .oper = *chandef };
3446 struct ieee80211_local *local = sdata->local;
3447 int err;
3448
3449 lockdep_assert_wiphy(local->hw.wiphy);
3450
3451 if (!list_empty(head: &local->roc_list) || local->scanning) {
3452 err = -EBUSY;
3453 goto out_unlock;
3454 }
3455
3456 /* whatever, but channel contexts should not complain about that one */
3457 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
3458 sdata->deflink.needed_rx_chains = local->rx_chains;
3459
3460 err = ieee80211_link_use_channel(link: &sdata->deflink, req: &chanreq,
3461 mode: IEEE80211_CHANCTX_SHARED);
3462 if (err)
3463 goto out_unlock;
3464
3465 wiphy_delayed_work_queue(wiphy, dwork: &sdata->deflink.dfs_cac_timer_work,
3466 delay: msecs_to_jiffies(m: cac_time_ms));
3467
3468 out_unlock:
3469 return err;
3470}
3471
3472static void ieee80211_end_cac(struct wiphy *wiphy,
3473 struct net_device *dev)
3474{
3475 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3476 struct ieee80211_local *local = sdata->local;
3477
3478 lockdep_assert_wiphy(local->hw.wiphy);
3479
3480 list_for_each_entry(sdata, &local->interfaces, list) {
3481 /* it might be waiting for the local->mtx, but then
3482 * by the time it gets it, sdata->wdev.cac_started
3483 * will no longer be true
3484 */
3485 wiphy_delayed_work_cancel(wiphy,
3486 dwork: &sdata->deflink.dfs_cac_timer_work);
3487
3488 if (sdata->wdev.cac_started) {
3489 ieee80211_link_release_channel(link: &sdata->deflink);
3490 sdata->wdev.cac_started = false;
3491 }
3492 }
3493}
3494
3495static struct cfg80211_beacon_data *
3496cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3497{
3498 struct cfg80211_beacon_data *new_beacon;
3499 u8 *pos;
3500 int len;
3501
3502 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3503 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3504 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3505
3506 if (beacon->mbssid_ies)
3507 len += ieee80211_get_mbssid_beacon_len(elems: beacon->mbssid_ies,
3508 rnr_elems: beacon->rnr_ies,
3509 i: beacon->mbssid_ies->cnt);
3510
3511 new_beacon = kzalloc(size: sizeof(*new_beacon) + len, GFP_KERNEL);
3512 if (!new_beacon)
3513 return NULL;
3514
3515 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3516 new_beacon->mbssid_ies =
3517 kzalloc(struct_size(new_beacon->mbssid_ies,
3518 elem, beacon->mbssid_ies->cnt),
3519 GFP_KERNEL);
3520 if (!new_beacon->mbssid_ies) {
3521 kfree(objp: new_beacon);
3522 return NULL;
3523 }
3524
3525 if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
3526 new_beacon->rnr_ies =
3527 kzalloc(struct_size(new_beacon->rnr_ies,
3528 elem, beacon->rnr_ies->cnt),
3529 GFP_KERNEL);
3530 if (!new_beacon->rnr_ies) {
3531 kfree(objp: new_beacon->mbssid_ies);
3532 kfree(objp: new_beacon);
3533 return NULL;
3534 }
3535 }
3536 }
3537
3538 pos = (u8 *)(new_beacon + 1);
3539 if (beacon->head_len) {
3540 new_beacon->head_len = beacon->head_len;
3541 new_beacon->head = pos;
3542 memcpy(pos, beacon->head, beacon->head_len);
3543 pos += beacon->head_len;
3544 }
3545 if (beacon->tail_len) {
3546 new_beacon->tail_len = beacon->tail_len;
3547 new_beacon->tail = pos;
3548 memcpy(pos, beacon->tail, beacon->tail_len);
3549 pos += beacon->tail_len;
3550 }
3551 if (beacon->beacon_ies_len) {
3552 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3553 new_beacon->beacon_ies = pos;
3554 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3555 pos += beacon->beacon_ies_len;
3556 }
3557 if (beacon->proberesp_ies_len) {
3558 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3559 new_beacon->proberesp_ies = pos;
3560 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3561 pos += beacon->proberesp_ies_len;
3562 }
3563 if (beacon->assocresp_ies_len) {
3564 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3565 new_beacon->assocresp_ies = pos;
3566 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3567 pos += beacon->assocresp_ies_len;
3568 }
3569 if (beacon->probe_resp_len) {
3570 new_beacon->probe_resp_len = beacon->probe_resp_len;
3571 new_beacon->probe_resp = pos;
3572 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3573 pos += beacon->probe_resp_len;
3574 }
3575 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3576 pos += ieee80211_copy_mbssid_beacon(pos,
3577 dst: new_beacon->mbssid_ies,
3578 src: beacon->mbssid_ies);
3579 if (beacon->rnr_ies && beacon->rnr_ies->cnt)
3580 pos += ieee80211_copy_rnr_beacon(pos,
3581 dst: new_beacon->rnr_ies,
3582 src: beacon->rnr_ies);
3583 }
3584
3585 /* might copy -1, meaning no changes requested */
3586 new_beacon->ftm_responder = beacon->ftm_responder;
3587 if (beacon->lci) {
3588 new_beacon->lci_len = beacon->lci_len;
3589 new_beacon->lci = pos;
3590 memcpy(pos, beacon->lci, beacon->lci_len);
3591 pos += beacon->lci_len;
3592 }
3593 if (beacon->civicloc) {
3594 new_beacon->civicloc_len = beacon->civicloc_len;
3595 new_beacon->civicloc = pos;
3596 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3597 pos += beacon->civicloc_len;
3598 }
3599
3600 return new_beacon;
3601}
3602
3603void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id)
3604{
3605 struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif);
3606 struct ieee80211_local *local = sdata->local;
3607 struct ieee80211_link_data *link_data;
3608
3609 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
3610 return;
3611
3612 rcu_read_lock();
3613
3614 link_data = rcu_dereference(sdata->link[link_id]);
3615 if (WARN_ON(!link_data)) {
3616 rcu_read_unlock();
3617 return;
3618 }
3619
3620 /* TODO: MBSSID with MLO changes */
3621 if (vif->mbssid_tx_vif == vif) {
3622 /* Trigger ieee80211_csa_finish() on the non-transmitting
3623 * interfaces when channel switch is received on
3624 * transmitting interface
3625 */
3626 struct ieee80211_sub_if_data *iter;
3627
3628 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3629 if (!ieee80211_sdata_running(sdata: iter))
3630 continue;
3631
3632 if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3633 continue;
3634
3635 wiphy_work_queue(wiphy: iter->local->hw.wiphy,
3636 work: &iter->deflink.csa_finalize_work);
3637 }
3638 }
3639 wiphy_work_queue(wiphy: local->hw.wiphy, work: &link_data->csa_finalize_work);
3640
3641 rcu_read_unlock();
3642}
3643EXPORT_SYMBOL(ieee80211_csa_finish);
3644
3645void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3646{
3647 struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif);
3648 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3649 struct ieee80211_local *local = sdata->local;
3650
3651 sdata->csa_blocked_tx = block_tx;
3652 sdata_info(sdata, "channel switch failed, disconnecting\n");
3653 wiphy_work_queue(wiphy: local->hw.wiphy, work: &ifmgd->csa_connection_drop_work);
3654}
3655EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3656
3657static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data,
3658 u64 *changed)
3659{
3660 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3661 int err;
3662
3663 switch (sdata->vif.type) {
3664 case NL80211_IFTYPE_AP:
3665 if (!link_data->u.ap.next_beacon)
3666 return -EINVAL;
3667
3668 err = ieee80211_assign_beacon(sdata, link: link_data,
3669 params: link_data->u.ap.next_beacon,
3670 NULL, NULL, changed);
3671 ieee80211_free_next_beacon(link: link_data);
3672
3673 if (err < 0)
3674 return err;
3675 break;
3676 case NL80211_IFTYPE_ADHOC:
3677 err = ieee80211_ibss_finish_csa(sdata, changed);
3678 if (err < 0)
3679 return err;
3680 break;
3681#ifdef CONFIG_MAC80211_MESH
3682 case NL80211_IFTYPE_MESH_POINT:
3683 err = ieee80211_mesh_finish_csa(sdata, changed);
3684 if (err < 0)
3685 return err;
3686 break;
3687#endif
3688 default:
3689 WARN_ON(1);
3690 return -EINVAL;
3691 }
3692
3693 return 0;
3694}
3695
3696static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3697{
3698 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3699 struct ieee80211_local *local = sdata->local;
3700 struct ieee80211_bss_conf *link_conf = link_data->conf;
3701 u64 changed = 0;
3702 int err;
3703
3704 lockdep_assert_wiphy(local->hw.wiphy);
3705
3706 /*
3707 * using reservation isn't immediate as it may be deferred until later
3708 * with multi-vif. once reservation is complete it will re-schedule the
3709 * work with no reserved_chanctx so verify chandef to check if it
3710 * completed successfully
3711 */
3712
3713 if (link_data->reserved_chanctx) {
3714 /*
3715 * with multi-vif csa driver may call ieee80211_csa_finish()
3716 * many times while waiting for other interfaces to use their
3717 * reservations
3718 */
3719 if (link_data->reserved_ready)
3720 return 0;
3721
3722 return ieee80211_link_use_reserved_context(link: link_data);
3723 }
3724
3725 if (!cfg80211_chandef_identical(chandef1: &link_conf->chanreq.oper,
3726 chandef2: &link_data->csa_chanreq.oper))
3727 return -EINVAL;
3728
3729 link_conf->csa_active = false;
3730
3731 err = ieee80211_set_after_csa_beacon(link_data, changed: &changed);
3732 if (err)
3733 return err;
3734
3735 ieee80211_link_info_change_notify(sdata, link: link_data, changed);
3736
3737 if (sdata->csa_blocked_tx) {
3738 ieee80211_wake_vif_queues(local, sdata,
3739 reason: IEEE80211_QUEUE_STOP_REASON_CSA);
3740 sdata->csa_blocked_tx = false;
3741 }
3742
3743 err = drv_post_channel_switch(link: link_data);
3744 if (err)
3745 return err;
3746
3747 cfg80211_ch_switch_notify(dev: sdata->dev, chandef: &link_data->csa_chanreq.oper,
3748 link_id: link_data->link_id);
3749
3750 return 0;
3751}
3752
3753static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3754{
3755 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3756
3757 if (__ieee80211_csa_finalize(link_data)) {
3758 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n",
3759 link_data->link_id);
3760 cfg80211_stop_iface(wiphy: sdata->local->hw.wiphy, wdev: &sdata->wdev,
3761 GFP_KERNEL);
3762 }
3763}
3764
3765void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work)
3766{
3767 struct ieee80211_link_data *link =
3768 container_of(work, struct ieee80211_link_data, csa_finalize_work);
3769 struct ieee80211_sub_if_data *sdata = link->sdata;
3770 struct ieee80211_local *local = sdata->local;
3771
3772 lockdep_assert_wiphy(local->hw.wiphy);
3773
3774 /* AP might have been stopped while waiting for the lock. */
3775 if (!link->conf->csa_active)
3776 return;
3777
3778 if (!ieee80211_sdata_running(sdata))
3779 return;
3780
3781 ieee80211_csa_finalize(link_data: link);
3782}
3783
3784static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data,
3785 struct cfg80211_csa_settings *params,
3786 u64 *changed)
3787{
3788 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3789 struct ieee80211_csa_settings csa = {};
3790 int err;
3791
3792 switch (sdata->vif.type) {
3793 case NL80211_IFTYPE_AP:
3794 link_data->u.ap.next_beacon =
3795 cfg80211_beacon_dup(beacon: &params->beacon_after);
3796 if (!link_data->u.ap.next_beacon)
3797 return -ENOMEM;
3798
3799 /*
3800 * With a count of 0, we don't have to wait for any
3801 * TBTT before switching, so complete the CSA
3802 * immediately. In theory, with a count == 1 we
3803 * should delay the switch until just before the next
3804 * TBTT, but that would complicate things so we switch
3805 * immediately too. If we would delay the switch
3806 * until the next TBTT, we would have to set the probe
3807 * response here.
3808 *
3809 * TODO: A channel switch with count <= 1 without
3810 * sending a CSA action frame is kind of useless,
3811 * because the clients won't know we're changing
3812 * channels. The action frame must be implemented
3813 * either here or in the userspace.
3814 */
3815 if (params->count <= 1)
3816 break;
3817
3818 if ((params->n_counter_offsets_beacon >
3819 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3820 (params->n_counter_offsets_presp >
3821 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3822 ieee80211_free_next_beacon(link: link_data);
3823 return -EINVAL;
3824 }
3825
3826 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3827 csa.counter_offsets_presp = params->counter_offsets_presp;
3828 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3829 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3830 csa.count = params->count;
3831
3832 err = ieee80211_assign_beacon(sdata, link: link_data,
3833 params: &params->beacon_csa, csa: &csa,
3834 NULL, changed);
3835 if (err < 0) {
3836 ieee80211_free_next_beacon(link: link_data);
3837 return err;
3838 }
3839
3840 break;
3841 case NL80211_IFTYPE_ADHOC:
3842 if (!sdata->vif.cfg.ibss_joined)
3843 return -EINVAL;
3844
3845 if (params->chandef.width != sdata->u.ibss.chandef.width)
3846 return -EINVAL;
3847
3848 switch (params->chandef.width) {
3849 case NL80211_CHAN_WIDTH_40:
3850 if (cfg80211_get_chandef_type(chandef: &params->chandef) !=
3851 cfg80211_get_chandef_type(chandef: &sdata->u.ibss.chandef))
3852 return -EINVAL;
3853 break;
3854 case NL80211_CHAN_WIDTH_5:
3855 case NL80211_CHAN_WIDTH_10:
3856 case NL80211_CHAN_WIDTH_20_NOHT:
3857 case NL80211_CHAN_WIDTH_20:
3858 break;
3859 default:
3860 return -EINVAL;
3861 }
3862
3863 /* changes into another band are not supported */
3864 if (sdata->u.ibss.chandef.chan->band !=
3865 params->chandef.chan->band)
3866 return -EINVAL;
3867
3868 /* see comments in the NL80211_IFTYPE_AP block */
3869 if (params->count > 1) {
3870 err = ieee80211_ibss_csa_beacon(sdata, csa_settings: params, changed);
3871 if (err < 0)
3872 return err;
3873 }
3874
3875 ieee80211_send_action_csa(sdata, csa_settings: params);
3876
3877 break;
3878#ifdef CONFIG_MAC80211_MESH
3879 case NL80211_IFTYPE_MESH_POINT: {
3880 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3881
3882 /* changes into another band are not supported */
3883 if (sdata->vif.bss_conf.chanreq.oper.chan->band !=
3884 params->chandef.chan->band)
3885 return -EINVAL;
3886
3887 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3888 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3889 if (!ifmsh->pre_value)
3890 ifmsh->pre_value = 1;
3891 else
3892 ifmsh->pre_value++;
3893 }
3894
3895 /* see comments in the NL80211_IFTYPE_AP block */
3896 if (params->count > 1) {
3897 err = ieee80211_mesh_csa_beacon(sdata, csa_settings: params, changed);
3898 if (err < 0) {
3899 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3900 return err;
3901 }
3902 }
3903
3904 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3905 ieee80211_send_action_csa(sdata, csa_settings: params);
3906
3907 break;
3908 }
3909#endif
3910 default:
3911 return -EOPNOTSUPP;
3912 }
3913
3914 return 0;
3915}
3916
3917static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata)
3918{
3919 sdata->vif.bss_conf.color_change_active = false;
3920
3921 ieee80211_free_next_beacon(link: &sdata->deflink);
3922
3923 cfg80211_color_change_aborted_notify(dev: sdata->dev);
3924}
3925
3926static int
3927__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3928 struct cfg80211_csa_settings *params)
3929{
3930 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3931 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
3932 struct ieee80211_local *local = sdata->local;
3933 struct ieee80211_channel_switch ch_switch = {
3934 .link_id = params->link_id,
3935 };
3936 struct ieee80211_chanctx_conf *conf;
3937 struct ieee80211_chanctx *chanctx;
3938 struct ieee80211_bss_conf *link_conf;
3939 struct ieee80211_link_data *link_data;
3940 u64 changed = 0;
3941 u8 link_id = params->link_id;
3942 int err;
3943
3944 lockdep_assert_wiphy(local->hw.wiphy);
3945
3946 if (!list_empty(head: &local->roc_list) || local->scanning)
3947 return -EBUSY;
3948
3949 if (sdata->wdev.cac_started)
3950 return -EBUSY;
3951
3952 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
3953 return -EINVAL;
3954
3955 link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
3956 if (!link_data)
3957 return -ENOLINK;
3958
3959 link_conf = link_data->conf;
3960
3961 if (chanreq.oper.punctured && !link_conf->eht_support)
3962 return -EINVAL;
3963
3964 /* don't allow another channel switch if one is already active. */
3965 if (link_conf->csa_active)
3966 return -EBUSY;
3967
3968 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf);
3969 if (!conf) {
3970 err = -EBUSY;
3971 goto out;
3972 }
3973
3974 if (params->chandef.chan->freq_offset) {
3975 /* this may work, but is untested */
3976 err = -EOPNOTSUPP;
3977 goto out;
3978 }
3979
3980 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3981
3982 ch_switch.timestamp = 0;
3983 ch_switch.device_timestamp = 0;
3984 ch_switch.block_tx = params->block_tx;
3985 ch_switch.chandef = chanreq.oper;
3986 ch_switch.count = params->count;
3987
3988 err = drv_pre_channel_switch(sdata, ch_switch: &ch_switch);
3989 if (err)
3990 goto out;
3991
3992 err = ieee80211_link_reserve_chanctx(link: link_data, req: &chanreq,
3993 mode: chanctx->mode,
3994 radar_required: params->radar_required);
3995 if (err)
3996 goto out;
3997
3998 /* if reservation is invalid then this will fail */
3999 err = ieee80211_check_combinations(sdata, NULL, chanmode: chanctx->mode, radar_detect: 0);
4000 if (err) {
4001 ieee80211_link_unreserve_chanctx(link: link_data);
4002 goto out;
4003 }
4004
4005 /* if there is a color change in progress, abort it */
4006 if (link_conf->color_change_active)
4007 ieee80211_color_change_abort(sdata);
4008
4009 err = ieee80211_set_csa_beacon(link_data, params, changed: &changed);
4010 if (err) {
4011 ieee80211_link_unreserve_chanctx(link: link_data);
4012 goto out;
4013 }
4014
4015 link_data->csa_chanreq = chanreq;
4016 link_conf->csa_active = true;
4017
4018 if (params->block_tx &&
4019 !ieee80211_hw_check(&local->hw, HANDLES_QUIET_CSA)) {
4020 ieee80211_stop_vif_queues(local, sdata,
4021 reason: IEEE80211_QUEUE_STOP_REASON_CSA);
4022 sdata->csa_blocked_tx = true;
4023 }
4024
4025 cfg80211_ch_switch_started_notify(dev: sdata->dev,
4026 chandef: &link_data->csa_chanreq.oper, link_id: 0,
4027 count: params->count, quiet: params->block_tx);
4028
4029 if (changed) {
4030 ieee80211_link_info_change_notify(sdata, link: link_data, changed);
4031 drv_channel_switch_beacon(sdata, chandef: &link_data->csa_chanreq.oper);
4032 } else {
4033 /* if the beacon didn't change, we can finalize immediately */
4034 ieee80211_csa_finalize(link_data);
4035 }
4036
4037out:
4038 return err;
4039}
4040
4041int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4042 struct cfg80211_csa_settings *params)
4043{
4044 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4045 struct ieee80211_local *local = sdata->local;
4046
4047 lockdep_assert_wiphy(local->hw.wiphy);
4048
4049 return __ieee80211_channel_switch(wiphy, dev, params);
4050}
4051
4052u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
4053{
4054 lockdep_assert_wiphy(local->hw.wiphy);
4055
4056 local->roc_cookie_counter++;
4057
4058 /* wow, you wrapped 64 bits ... more likely a bug */
4059 if (WARN_ON(local->roc_cookie_counter == 0))
4060 local->roc_cookie_counter++;
4061
4062 return local->roc_cookie_counter;
4063}
4064
4065int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
4066 u64 *cookie, gfp_t gfp)
4067{
4068 unsigned long spin_flags;
4069 struct sk_buff *ack_skb;
4070 int id;
4071
4072 ack_skb = skb_copy(skb, priority: gfp);
4073 if (!ack_skb)
4074 return -ENOMEM;
4075
4076 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
4077 id = idr_alloc(&local->ack_status_frames, ptr: ack_skb,
4078 start: 1, end: 0x2000, GFP_ATOMIC);
4079 spin_unlock_irqrestore(lock: &local->ack_status_lock, flags: spin_flags);
4080
4081 if (id < 0) {
4082 kfree_skb(skb: ack_skb);
4083 return -ENOMEM;
4084 }
4085
4086 IEEE80211_SKB_CB(skb)->status_data_idr = 1;
4087 IEEE80211_SKB_CB(skb)->status_data = id;
4088
4089 *cookie = ieee80211_mgmt_tx_cookie(local);
4090 IEEE80211_SKB_CB(skb: ack_skb)->ack.cookie = *cookie;
4091
4092 return 0;
4093}
4094
4095static void
4096ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
4097 struct wireless_dev *wdev,
4098 struct mgmt_frame_regs *upd)
4099{
4100 struct ieee80211_local *local = wiphy_priv(wiphy);
4101 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4102 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
4103 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
4104 bool global_change, intf_change;
4105
4106 global_change =
4107 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
4108 (local->rx_mcast_action_reg !=
4109 !!(upd->global_mcast_stypes & action_mask));
4110 local->probe_req_reg = upd->global_stypes & preq_mask;
4111 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
4112
4113 intf_change = (sdata->vif.probe_req_reg !=
4114 !!(upd->interface_stypes & preq_mask)) ||
4115 (sdata->vif.rx_mcast_action_reg !=
4116 !!(upd->interface_mcast_stypes & action_mask));
4117 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
4118 sdata->vif.rx_mcast_action_reg =
4119 upd->interface_mcast_stypes & action_mask;
4120
4121 if (!local->open_count)
4122 return;
4123
4124 if (intf_change && ieee80211_sdata_running(sdata))
4125 drv_config_iface_filter(local, sdata,
4126 filter_flags: sdata->vif.probe_req_reg ?
4127 FIF_PROBE_REQ : 0,
4128 changed_flags: FIF_PROBE_REQ);
4129
4130 if (global_change)
4131 ieee80211_configure_filter(local);
4132}
4133
4134static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
4135{
4136 struct ieee80211_local *local = wiphy_priv(wiphy);
4137 int ret;
4138
4139 if (local->started)
4140 return -EOPNOTSUPP;
4141
4142 ret = drv_set_antenna(local, tx_ant, rx_ant);
4143 if (ret)
4144 return ret;
4145
4146 local->rx_chains = hweight8(rx_ant);
4147 return 0;
4148}
4149
4150static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4151{
4152 struct ieee80211_local *local = wiphy_priv(wiphy);
4153
4154 return drv_get_antenna(local, tx_ant, rx_ant);
4155}
4156
4157static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4158 struct net_device *dev,
4159 struct cfg80211_gtk_rekey_data *data)
4160{
4161 struct ieee80211_local *local = wiphy_priv(wiphy);
4162 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4163
4164 if (!local->ops->set_rekey_data)
4165 return -EOPNOTSUPP;
4166
4167 drv_set_rekey_data(local, sdata, data);
4168
4169 return 0;
4170}
4171
4172static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4173 const u8 *peer, u64 *cookie)
4174{
4175 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4176 struct ieee80211_local *local = sdata->local;
4177 struct ieee80211_qos_hdr *nullfunc;
4178 struct sk_buff *skb;
4179 int size = sizeof(*nullfunc);
4180 __le16 fc;
4181 bool qos;
4182 struct ieee80211_tx_info *info;
4183 struct sta_info *sta;
4184 struct ieee80211_chanctx_conf *chanctx_conf;
4185 enum nl80211_band band;
4186 int ret;
4187
4188 /* the lock is needed to assign the cookie later */
4189 lockdep_assert_wiphy(local->hw.wiphy);
4190
4191 rcu_read_lock();
4192 sta = sta_info_get_bss(sdata, addr: peer);
4193 if (!sta) {
4194 ret = -ENOLINK;
4195 goto unlock;
4196 }
4197
4198 qos = sta->sta.wme;
4199
4200 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4201 if (WARN_ON(!chanctx_conf)) {
4202 ret = -EINVAL;
4203 goto unlock;
4204 }
4205 band = chanctx_conf->def.chan->band;
4206
4207 if (qos) {
4208 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4209 IEEE80211_STYPE_QOS_NULLFUNC |
4210 IEEE80211_FCTL_FROMDS);
4211 } else {
4212 size -= 2;
4213 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4214 IEEE80211_STYPE_NULLFUNC |
4215 IEEE80211_FCTL_FROMDS);
4216 }
4217
4218 skb = dev_alloc_skb(length: local->hw.extra_tx_headroom + size);
4219 if (!skb) {
4220 ret = -ENOMEM;
4221 goto unlock;
4222 }
4223
4224 skb->dev = dev;
4225
4226 skb_reserve(skb, len: local->hw.extra_tx_headroom);
4227
4228 nullfunc = skb_put(skb, len: size);
4229 nullfunc->frame_control = fc;
4230 nullfunc->duration_id = 0;
4231 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4232 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4233 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4234 nullfunc->seq_ctrl = 0;
4235
4236 info = IEEE80211_SKB_CB(skb);
4237
4238 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4239 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4240 info->band = band;
4241
4242 skb_set_queue_mapping(skb, queue_mapping: IEEE80211_AC_VO);
4243 skb->priority = 7;
4244 if (qos)
4245 nullfunc->qos_ctrl = cpu_to_le16(7);
4246
4247 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4248 if (ret) {
4249 kfree_skb(skb);
4250 goto unlock;
4251 }
4252
4253 local_bh_disable();
4254 ieee80211_xmit(sdata, sta, skb);
4255 local_bh_enable();
4256
4257 ret = 0;
4258unlock:
4259 rcu_read_unlock();
4260
4261 return ret;
4262}
4263
4264static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4265 struct wireless_dev *wdev,
4266 unsigned int link_id,
4267 struct cfg80211_chan_def *chandef)
4268{
4269 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4270 struct ieee80211_local *local = wiphy_priv(wiphy);
4271 struct ieee80211_chanctx_conf *chanctx_conf;
4272 struct ieee80211_link_data *link;
4273 int ret = -ENODATA;
4274
4275 rcu_read_lock();
4276 link = rcu_dereference(sdata->link[link_id]);
4277 if (!link) {
4278 ret = -ENOLINK;
4279 goto out;
4280 }
4281
4282 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4283 if (chanctx_conf) {
4284 *chandef = link->conf->chanreq.oper;
4285 ret = 0;
4286 } else if (local->open_count > 0 &&
4287 local->open_count == local->monitors &&
4288 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4289 *chandef = local->monitor_chanreq.oper;
4290 ret = 0;
4291 }
4292out:
4293 rcu_read_unlock();
4294
4295 return ret;
4296}
4297
4298#ifdef CONFIG_PM
4299static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4300{
4301 drv_set_wakeup(local: wiphy_priv(wiphy), enabled);
4302}
4303#endif
4304
4305static int ieee80211_set_qos_map(struct wiphy *wiphy,
4306 struct net_device *dev,
4307 struct cfg80211_qos_map *qos_map)
4308{
4309 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4310 struct mac80211_qos_map *new_qos_map, *old_qos_map;
4311
4312 if (qos_map) {
4313 new_qos_map = kzalloc(size: sizeof(*new_qos_map), GFP_KERNEL);
4314 if (!new_qos_map)
4315 return -ENOMEM;
4316 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4317 } else {
4318 /* A NULL qos_map was passed to disable QoS mapping */
4319 new_qos_map = NULL;
4320 }
4321
4322 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4323 rcu_assign_pointer(sdata->qos_map, new_qos_map);
4324 if (old_qos_map)
4325 kfree_rcu(old_qos_map, rcu_head);
4326
4327 return 0;
4328}
4329
4330static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4331 struct net_device *dev,
4332 unsigned int link_id,
4333 struct cfg80211_chan_def *chandef)
4334{
4335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4336 struct ieee80211_link_data *link;
4337 struct ieee80211_chan_req chanreq = { .oper = *chandef };
4338 int ret;
4339 u64 changed = 0;
4340
4341 link = sdata_dereference(sdata->link[link_id], sdata);
4342
4343 ret = ieee80211_link_change_chanreq(link, req: &chanreq, changed: &changed);
4344 if (ret == 0)
4345 ieee80211_link_info_change_notify(sdata, link, changed);
4346
4347 return ret;
4348}
4349
4350static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4351 u8 tsid, const u8 *peer, u8 up,
4352 u16 admitted_time)
4353{
4354 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4355 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4356 int ac = ieee802_1d_to_ac[up];
4357
4358 if (sdata->vif.type != NL80211_IFTYPE_STATION)
4359 return -EOPNOTSUPP;
4360
4361 if (!(sdata->wmm_acm & BIT(up)))
4362 return -EINVAL;
4363
4364 if (ifmgd->tx_tspec[ac].admitted_time)
4365 return -EBUSY;
4366
4367 if (admitted_time) {
4368 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4369 ifmgd->tx_tspec[ac].tsid = tsid;
4370 ifmgd->tx_tspec[ac].up = up;
4371 }
4372
4373 return 0;
4374}
4375
4376static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4377 u8 tsid, const u8 *peer)
4378{
4379 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4380 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4381 struct ieee80211_local *local = wiphy_priv(wiphy);
4382 int ac;
4383
4384 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4385 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4386
4387 /* skip unused entries */
4388 if (!tx_tspec->admitted_time)
4389 continue;
4390
4391 if (tx_tspec->tsid != tsid)
4392 continue;
4393
4394 /* due to this new packets will be reassigned to non-ACM ACs */
4395 tx_tspec->up = -1;
4396
4397 /* Make sure that all packets have been sent to avoid to
4398 * restore the QoS params on packets that are still on the
4399 * queues.
4400 */
4401 synchronize_net();
4402 ieee80211_flush_queues(local, sdata, drop: false);
4403
4404 /* restore the normal QoS parameters
4405 * (unconditionally to avoid races)
4406 */
4407 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4408 tx_tspec->downgraded = false;
4409 ieee80211_sta_handle_tspec_ac_params(sdata);
4410
4411 /* finally clear all the data */
4412 memset(tx_tspec, 0, sizeof(*tx_tspec));
4413
4414 return 0;
4415 }
4416
4417 return -ENOENT;
4418}
4419
4420void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4421 u8 inst_id,
4422 enum nl80211_nan_func_term_reason reason,
4423 gfp_t gfp)
4424{
4425 struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif);
4426 struct cfg80211_nan_func *func;
4427 u64 cookie;
4428
4429 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4430 return;
4431
4432 spin_lock_bh(lock: &sdata->u.nan.func_lock);
4433
4434 func = idr_find(&sdata->u.nan.function_inst_ids, id: inst_id);
4435 if (WARN_ON(!func)) {
4436 spin_unlock_bh(lock: &sdata->u.nan.func_lock);
4437 return;
4438 }
4439
4440 cookie = func->cookie;
4441 idr_remove(&sdata->u.nan.function_inst_ids, id: inst_id);
4442
4443 spin_unlock_bh(lock: &sdata->u.nan.func_lock);
4444
4445 cfg80211_free_nan_func(f: func);
4446
4447 cfg80211_nan_func_terminated(wdev: ieee80211_vif_to_wdev(vif), inst_id,
4448 reason, cookie, gfp);
4449}
4450EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4451
4452void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4453 struct cfg80211_nan_match_params *match,
4454 gfp_t gfp)
4455{
4456 struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif);
4457 struct cfg80211_nan_func *func;
4458
4459 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4460 return;
4461
4462 spin_lock_bh(lock: &sdata->u.nan.func_lock);
4463
4464 func = idr_find(&sdata->u.nan.function_inst_ids, id: match->inst_id);
4465 if (WARN_ON(!func)) {
4466 spin_unlock_bh(lock: &sdata->u.nan.func_lock);
4467 return;
4468 }
4469 match->cookie = func->cookie;
4470
4471 spin_unlock_bh(lock: &sdata->u.nan.func_lock);
4472
4473 cfg80211_nan_match(wdev: ieee80211_vif_to_wdev(vif), match, gfp);
4474}
4475EXPORT_SYMBOL(ieee80211_nan_func_match);
4476
4477static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4478 struct net_device *dev,
4479 const bool enabled)
4480{
4481 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4482
4483 sdata->u.ap.multicast_to_unicast = enabled;
4484
4485 return 0;
4486}
4487
4488void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4489 struct txq_info *txqi)
4490{
4491 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4492 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4493 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4494 }
4495
4496 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4497 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4498 txqstats->backlog_packets = txqi->tin.backlog_packets;
4499 }
4500
4501 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4502 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4503 txqstats->flows = txqi->tin.flows;
4504 }
4505
4506 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4507 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4508 txqstats->drops = txqi->cstats.drop_count;
4509 }
4510
4511 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4512 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4513 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4514 }
4515
4516 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4517 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4518 txqstats->overlimit = txqi->tin.overlimit;
4519 }
4520
4521 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4522 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4523 txqstats->collisions = txqi->tin.collisions;
4524 }
4525
4526 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4527 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4528 txqstats->tx_bytes = txqi->tin.tx_bytes;
4529 }
4530
4531 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4532 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4533 txqstats->tx_packets = txqi->tin.tx_packets;
4534 }
4535}
4536
4537static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4538 struct wireless_dev *wdev,
4539 struct cfg80211_txq_stats *txqstats)
4540{
4541 struct ieee80211_local *local = wiphy_priv(wiphy);
4542 struct ieee80211_sub_if_data *sdata;
4543 int ret = 0;
4544
4545 spin_lock_bh(lock: &local->fq.lock);
4546 rcu_read_lock();
4547
4548 if (wdev) {
4549 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4550 if (!sdata->vif.txq) {
4551 ret = 1;
4552 goto out;
4553 }
4554 ieee80211_fill_txq_stats(txqstats, txqi: to_txq_info(txq: sdata->vif.txq));
4555 } else {
4556 /* phy stats */
4557 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4558 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4559 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4560 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4561 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4562 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4563 txqstats->backlog_packets = local->fq.backlog;
4564 txqstats->backlog_bytes = local->fq.memory_usage;
4565 txqstats->overlimit = local->fq.overlimit;
4566 txqstats->overmemory = local->fq.overmemory;
4567 txqstats->collisions = local->fq.collisions;
4568 txqstats->max_flows = local->fq.flows_cnt;
4569 }
4570
4571out:
4572 rcu_read_unlock();
4573 spin_unlock_bh(lock: &local->fq.lock);
4574
4575 return ret;
4576}
4577
4578static int
4579ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4580 struct net_device *dev,
4581 struct cfg80211_ftm_responder_stats *ftm_stats)
4582{
4583 struct ieee80211_local *local = wiphy_priv(wiphy);
4584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4585
4586 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4587}
4588
4589static int
4590ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4591 struct cfg80211_pmsr_request *request)
4592{
4593 struct ieee80211_local *local = wiphy_priv(wiphy);
4594 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev: dev);
4595
4596 return drv_start_pmsr(local, sdata, request);
4597}
4598
4599static void
4600ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4601 struct cfg80211_pmsr_request *request)
4602{
4603 struct ieee80211_local *local = wiphy_priv(wiphy);
4604 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev: dev);
4605
4606 return drv_abort_pmsr(local, sdata, request);
4607}
4608
4609static int ieee80211_set_tid_config(struct wiphy *wiphy,
4610 struct net_device *dev,
4611 struct cfg80211_tid_config *tid_conf)
4612{
4613 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4614 struct sta_info *sta;
4615
4616 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4617
4618 if (!sdata->local->ops->set_tid_config)
4619 return -EOPNOTSUPP;
4620
4621 if (!tid_conf->peer)
4622 return drv_set_tid_config(local: sdata->local, sdata, NULL, tid_conf);
4623
4624 sta = sta_info_get_bss(sdata, addr: tid_conf->peer);
4625 if (!sta)
4626 return -ENOENT;
4627
4628 return drv_set_tid_config(local: sdata->local, sdata, sta: &sta->sta, tid_conf);
4629}
4630
4631static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4632 struct net_device *dev,
4633 const u8 *peer, u8 tids)
4634{
4635 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4636 struct sta_info *sta;
4637
4638 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4639
4640 if (!sdata->local->ops->reset_tid_config)
4641 return -EOPNOTSUPP;
4642
4643 if (!peer)
4644 return drv_reset_tid_config(local: sdata->local, sdata, NULL, tids);
4645
4646 sta = sta_info_get_bss(sdata, addr: peer);
4647 if (!sta)
4648 return -ENOENT;
4649
4650 return drv_reset_tid_config(local: sdata->local, sdata, sta: &sta->sta, tids);
4651}
4652
4653static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4654 struct cfg80211_sar_specs *sar)
4655{
4656 struct ieee80211_local *local = wiphy_priv(wiphy);
4657
4658 if (!local->ops->set_sar_specs)
4659 return -EOPNOTSUPP;
4660
4661 return local->ops->set_sar_specs(&local->hw, sar);
4662}
4663
4664static int
4665ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4666 u64 *changed)
4667{
4668 switch (sdata->vif.type) {
4669 case NL80211_IFTYPE_AP: {
4670 int ret;
4671
4672 if (!sdata->deflink.u.ap.next_beacon)
4673 return -EINVAL;
4674
4675 ret = ieee80211_assign_beacon(sdata, link: &sdata->deflink,
4676 params: sdata->deflink.u.ap.next_beacon,
4677 NULL, NULL, changed);
4678 ieee80211_free_next_beacon(link: &sdata->deflink);
4679
4680 if (ret < 0)
4681 return ret;
4682
4683 break;
4684 }
4685 default:
4686 WARN_ON_ONCE(1);
4687 return -EINVAL;
4688 }
4689
4690 return 0;
4691}
4692
4693static int
4694ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4695 struct cfg80211_color_change_settings *params,
4696 u64 *changed)
4697{
4698 struct ieee80211_color_change_settings color_change = {};
4699 int err;
4700
4701 switch (sdata->vif.type) {
4702 case NL80211_IFTYPE_AP:
4703 sdata->deflink.u.ap.next_beacon =
4704 cfg80211_beacon_dup(beacon: &params->beacon_next);
4705 if (!sdata->deflink.u.ap.next_beacon)
4706 return -ENOMEM;
4707
4708 if (params->count <= 1)
4709 break;
4710
4711 color_change.counter_offset_beacon =
4712 params->counter_offset_beacon;
4713 color_change.counter_offset_presp =
4714 params->counter_offset_presp;
4715 color_change.count = params->count;
4716
4717 err = ieee80211_assign_beacon(sdata, link: &sdata->deflink,
4718 params: &params->beacon_color_change,
4719 NULL, cca: &color_change, changed);
4720 if (err < 0) {
4721 ieee80211_free_next_beacon(link: &sdata->deflink);
4722 return err;
4723 }
4724 break;
4725 default:
4726 return -EOPNOTSUPP;
4727 }
4728
4729 return 0;
4730}
4731
4732static void
4733ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4734 u8 color, int enable, u64 changed)
4735{
4736 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4737
4738 sdata->vif.bss_conf.he_bss_color.color = color;
4739 sdata->vif.bss_conf.he_bss_color.enabled = enable;
4740 changed |= BSS_CHANGED_HE_BSS_COLOR;
4741
4742 ieee80211_link_info_change_notify(sdata, link: &sdata->deflink, changed);
4743
4744 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4745 struct ieee80211_sub_if_data *child;
4746
4747 list_for_each_entry(child, &sdata->local->interfaces, list) {
4748 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4749 child->vif.bss_conf.he_bss_color.color = color;
4750 child->vif.bss_conf.he_bss_color.enabled = enable;
4751 ieee80211_link_info_change_notify(sdata: child,
4752 link: &child->deflink,
4753 changed: BSS_CHANGED_HE_BSS_COLOR);
4754 }
4755 }
4756 }
4757}
4758
4759static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4760{
4761 struct ieee80211_local *local = sdata->local;
4762 u64 changed = 0;
4763 int err;
4764
4765 lockdep_assert_wiphy(local->hw.wiphy);
4766
4767 sdata->vif.bss_conf.color_change_active = false;
4768
4769 err = ieee80211_set_after_color_change_beacon(sdata, changed: &changed);
4770 if (err) {
4771 cfg80211_color_change_aborted_notify(dev: sdata->dev);
4772 return err;
4773 }
4774
4775 ieee80211_color_change_bss_config_notify(sdata,
4776 color: sdata->vif.bss_conf.color_change_color,
4777 enable: 1, changed);
4778 cfg80211_color_change_notify(dev: sdata->dev);
4779
4780 return 0;
4781}
4782
4783void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
4784 struct wiphy_work *work)
4785{
4786 struct ieee80211_sub_if_data *sdata =
4787 container_of(work, struct ieee80211_sub_if_data,
4788 deflink.color_change_finalize_work);
4789 struct ieee80211_local *local = sdata->local;
4790
4791 lockdep_assert_wiphy(local->hw.wiphy);
4792
4793 /* AP might have been stopped while waiting for the lock. */
4794 if (!sdata->vif.bss_conf.color_change_active)
4795 return;
4796
4797 if (!ieee80211_sdata_running(sdata))
4798 return;
4799
4800 ieee80211_color_change_finalize(sdata);
4801}
4802
4803void ieee80211_color_collision_detection_work(struct work_struct *work)
4804{
4805 struct delayed_work *delayed_work = to_delayed_work(work);
4806 struct ieee80211_link_data *link =
4807 container_of(delayed_work, struct ieee80211_link_data,
4808 color_collision_detect_work);
4809 struct ieee80211_sub_if_data *sdata = link->sdata;
4810
4811 cfg80211_obss_color_collision_notify(dev: sdata->dev, color_bitmap: link->color_bitmap);
4812}
4813
4814void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4815{
4816 struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif);
4817
4818 wiphy_work_queue(wiphy: sdata->local->hw.wiphy,
4819 work: &sdata->deflink.color_change_finalize_work);
4820}
4821EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4822
4823void
4824ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4825 u64 color_bitmap)
4826{
4827 struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif);
4828 struct ieee80211_link_data *link = &sdata->deflink;
4829
4830 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
4831 return;
4832
4833 if (delayed_work_pending(&link->color_collision_detect_work))
4834 return;
4835
4836 link->color_bitmap = color_bitmap;
4837 /* queue the color collision detection event every 500 ms in order to
4838 * avoid sending too much netlink messages to userspace.
4839 */
4840 ieee80211_queue_delayed_work(hw: &sdata->local->hw,
4841 dwork: &link->color_collision_detect_work,
4842 delay: msecs_to_jiffies(m: 500));
4843}
4844EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
4845
4846static int
4847ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4848 struct cfg80211_color_change_settings *params)
4849{
4850 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4851 struct ieee80211_local *local = sdata->local;
4852 u64 changed = 0;
4853 int err;
4854
4855 lockdep_assert_wiphy(local->hw.wiphy);
4856
4857 if (sdata->vif.bss_conf.nontransmitted)
4858 return -EINVAL;
4859
4860 /* don't allow another color change if one is already active or if csa
4861 * is active
4862 */
4863 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) {
4864 err = -EBUSY;
4865 goto out;
4866 }
4867
4868 err = ieee80211_set_color_change_beacon(sdata, params, changed: &changed);
4869 if (err)
4870 goto out;
4871
4872 sdata->vif.bss_conf.color_change_active = true;
4873 sdata->vif.bss_conf.color_change_color = params->color;
4874
4875 cfg80211_color_change_started_notify(dev: sdata->dev, count: params->count);
4876
4877 if (changed)
4878 ieee80211_color_change_bss_config_notify(sdata, color: 0, enable: 0, changed);
4879 else
4880 /* if the beacon didn't change, we can finalize immediately */
4881 ieee80211_color_change_finalize(sdata);
4882
4883out:
4884
4885 return err;
4886}
4887
4888static int
4889ieee80211_set_radar_background(struct wiphy *wiphy,
4890 struct cfg80211_chan_def *chandef)
4891{
4892 struct ieee80211_local *local = wiphy_priv(wiphy);
4893
4894 if (!local->ops->set_radar_background)
4895 return -EOPNOTSUPP;
4896
4897 return local->ops->set_radar_background(&local->hw, chandef);
4898}
4899
4900static int ieee80211_add_intf_link(struct wiphy *wiphy,
4901 struct wireless_dev *wdev,
4902 unsigned int link_id)
4903{
4904 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4905
4906 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4907
4908 if (wdev->use_4addr)
4909 return -EOPNOTSUPP;
4910
4911 return ieee80211_vif_set_links(sdata, new_links: wdev->valid_links, dormant_links: 0);
4912}
4913
4914static void ieee80211_del_intf_link(struct wiphy *wiphy,
4915 struct wireless_dev *wdev,
4916 unsigned int link_id)
4917{
4918 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4919
4920 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4921
4922 ieee80211_vif_set_links(sdata, new_links: wdev->valid_links, dormant_links: 0);
4923}
4924
4925static int sta_add_link_station(struct ieee80211_local *local,
4926 struct ieee80211_sub_if_data *sdata,
4927 struct link_station_parameters *params)
4928{
4929 struct sta_info *sta;
4930 int ret;
4931
4932 sta = sta_info_get_bss(sdata, addr: params->mld_mac);
4933 if (!sta)
4934 return -ENOENT;
4935
4936 if (!sta->sta.valid_links)
4937 return -EINVAL;
4938
4939 if (sta->sta.valid_links & BIT(params->link_id))
4940 return -EALREADY;
4941
4942 ret = ieee80211_sta_allocate_link(sta, link_id: params->link_id);
4943 if (ret)
4944 return ret;
4945
4946 ret = sta_link_apply_parameters(local, sta, new_link: true, params);
4947 if (ret) {
4948 ieee80211_sta_free_link(sta, link_id: params->link_id);
4949 return ret;
4950 }
4951
4952 /* ieee80211_sta_activate_link frees the link upon failure */
4953 return ieee80211_sta_activate_link(sta, link_id: params->link_id);
4954}
4955
4956static int
4957ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
4958 struct link_station_parameters *params)
4959{
4960 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4961 struct ieee80211_local *local = wiphy_priv(wiphy);
4962
4963 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4964
4965 return sta_add_link_station(local, sdata, params);
4966}
4967
4968static int sta_mod_link_station(struct ieee80211_local *local,
4969 struct ieee80211_sub_if_data *sdata,
4970 struct link_station_parameters *params)
4971{
4972 struct sta_info *sta;
4973
4974 sta = sta_info_get_bss(sdata, addr: params->mld_mac);
4975 if (!sta)
4976 return -ENOENT;
4977
4978 if (!(sta->sta.valid_links & BIT(params->link_id)))
4979 return -EINVAL;
4980
4981 return sta_link_apply_parameters(local, sta, new_link: false, params);
4982}
4983
4984static int
4985ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
4986 struct link_station_parameters *params)
4987{
4988 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4989 struct ieee80211_local *local = wiphy_priv(wiphy);
4990
4991 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4992
4993 return sta_mod_link_station(local, sdata, params);
4994}
4995
4996static int sta_del_link_station(struct ieee80211_sub_if_data *sdata,
4997 struct link_station_del_parameters *params)
4998{
4999 struct sta_info *sta;
5000
5001 sta = sta_info_get_bss(sdata, addr: params->mld_mac);
5002 if (!sta)
5003 return -ENOENT;
5004
5005 if (!(sta->sta.valid_links & BIT(params->link_id)))
5006 return -EINVAL;
5007
5008 /* must not create a STA without links */
5009 if (sta->sta.valid_links == BIT(params->link_id))
5010 return -EINVAL;
5011
5012 ieee80211_sta_remove_link(sta, link_id: params->link_id);
5013
5014 return 0;
5015}
5016
5017static int
5018ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
5019 struct link_station_del_parameters *params)
5020{
5021 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5022
5023 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5024
5025 return sta_del_link_station(sdata, params);
5026}
5027
5028static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
5029 struct net_device *dev,
5030 struct cfg80211_set_hw_timestamp *hwts)
5031{
5032 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5033 struct ieee80211_local *local = sdata->local;
5034
5035 if (!local->ops->set_hw_timestamp)
5036 return -EOPNOTSUPP;
5037
5038 if (!check_sdata_in_driver(sdata))
5039 return -EIO;
5040
5041 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
5042}
5043
5044static int
5045ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev,
5046 struct cfg80211_ttlm_params *params)
5047{
5048 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5049
5050 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5051
5052 return ieee80211_req_neg_ttlm(sdata, params);
5053}
5054
5055const struct cfg80211_ops mac80211_config_ops = {
5056 .add_virtual_intf = ieee80211_add_iface,
5057 .del_virtual_intf = ieee80211_del_iface,
5058 .change_virtual_intf = ieee80211_change_iface,
5059 .start_p2p_device = ieee80211_start_p2p_device,
5060 .stop_p2p_device = ieee80211_stop_p2p_device,
5061 .add_key = ieee80211_add_key,
5062 .del_key = ieee80211_del_key,
5063 .get_key = ieee80211_get_key,
5064 .set_default_key = ieee80211_config_default_key,
5065 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5066 .set_default_beacon_key = ieee80211_config_default_beacon_key,
5067 .start_ap = ieee80211_start_ap,
5068 .change_beacon = ieee80211_change_beacon,
5069 .stop_ap = ieee80211_stop_ap,
5070 .add_station = ieee80211_add_station,
5071 .del_station = ieee80211_del_station,
5072 .change_station = ieee80211_change_station,
5073 .get_station = ieee80211_get_station,
5074 .dump_station = ieee80211_dump_station,
5075 .dump_survey = ieee80211_dump_survey,
5076#ifdef CONFIG_MAC80211_MESH
5077 .add_mpath = ieee80211_add_mpath,
5078 .del_mpath = ieee80211_del_mpath,
5079 .change_mpath = ieee80211_change_mpath,
5080 .get_mpath = ieee80211_get_mpath,
5081 .dump_mpath = ieee80211_dump_mpath,
5082 .get_mpp = ieee80211_get_mpp,
5083 .dump_mpp = ieee80211_dump_mpp,
5084 .update_mesh_config = ieee80211_update_mesh_config,
5085 .get_mesh_config = ieee80211_get_mesh_config,
5086 .join_mesh = ieee80211_join_mesh,
5087 .leave_mesh = ieee80211_leave_mesh,
5088#endif
5089 .join_ocb = ieee80211_join_ocb,
5090 .leave_ocb = ieee80211_leave_ocb,
5091 .change_bss = ieee80211_change_bss,
5092 .inform_bss = ieee80211_inform_bss,
5093 .set_txq_params = ieee80211_set_txq_params,
5094 .set_monitor_channel = ieee80211_set_monitor_channel,
5095 .suspend = ieee80211_suspend,
5096 .resume = ieee80211_resume,
5097 .scan = ieee80211_scan,
5098 .abort_scan = ieee80211_abort_scan,
5099 .sched_scan_start = ieee80211_sched_scan_start,
5100 .sched_scan_stop = ieee80211_sched_scan_stop,
5101 .auth = ieee80211_auth,
5102 .assoc = ieee80211_assoc,
5103 .deauth = ieee80211_deauth,
5104 .disassoc = ieee80211_disassoc,
5105 .join_ibss = ieee80211_join_ibss,
5106 .leave_ibss = ieee80211_leave_ibss,
5107 .set_mcast_rate = ieee80211_set_mcast_rate,
5108 .set_wiphy_params = ieee80211_set_wiphy_params,
5109 .set_tx_power = ieee80211_set_tx_power,
5110 .get_tx_power = ieee80211_get_tx_power,
5111 .rfkill_poll = ieee80211_rfkill_poll,
5112 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
5113 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
5114 .set_power_mgmt = ieee80211_set_power_mgmt,
5115 .set_bitrate_mask = ieee80211_set_bitrate_mask,
5116 .remain_on_channel = ieee80211_remain_on_channel,
5117 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
5118 .mgmt_tx = ieee80211_mgmt_tx,
5119 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
5120 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
5121 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
5122 .update_mgmt_frame_registrations =
5123 ieee80211_update_mgmt_frame_registrations,
5124 .set_antenna = ieee80211_set_antenna,
5125 .get_antenna = ieee80211_get_antenna,
5126 .set_rekey_data = ieee80211_set_rekey_data,
5127 .tdls_oper = ieee80211_tdls_oper,
5128 .tdls_mgmt = ieee80211_tdls_mgmt,
5129 .tdls_channel_switch = ieee80211_tdls_channel_switch,
5130 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
5131 .probe_client = ieee80211_probe_client,
5132 .set_noack_map = ieee80211_set_noack_map,
5133#ifdef CONFIG_PM
5134 .set_wakeup = ieee80211_set_wakeup,
5135#endif
5136 .get_channel = ieee80211_cfg_get_channel,
5137 .start_radar_detection = ieee80211_start_radar_detection,
5138 .end_cac = ieee80211_end_cac,
5139 .channel_switch = ieee80211_channel_switch,
5140 .set_qos_map = ieee80211_set_qos_map,
5141 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
5142 .add_tx_ts = ieee80211_add_tx_ts,
5143 .del_tx_ts = ieee80211_del_tx_ts,
5144 .start_nan = ieee80211_start_nan,
5145 .stop_nan = ieee80211_stop_nan,
5146 .nan_change_conf = ieee80211_nan_change_conf,
5147 .add_nan_func = ieee80211_add_nan_func,
5148 .del_nan_func = ieee80211_del_nan_func,
5149 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5150 .tx_control_port = ieee80211_tx_control_port,
5151 .get_txq_stats = ieee80211_get_txq_stats,
5152 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5153 .start_pmsr = ieee80211_start_pmsr,
5154 .abort_pmsr = ieee80211_abort_pmsr,
5155 .probe_mesh_link = ieee80211_probe_mesh_link,
5156 .set_tid_config = ieee80211_set_tid_config,
5157 .reset_tid_config = ieee80211_reset_tid_config,
5158 .set_sar_specs = ieee80211_set_sar_specs,
5159 .color_change = ieee80211_color_change,
5160 .set_radar_background = ieee80211_set_radar_background,
5161 .add_intf_link = ieee80211_add_intf_link,
5162 .del_intf_link = ieee80211_del_intf_link,
5163 .add_link_station = ieee80211_add_link_station,
5164 .mod_link_station = ieee80211_mod_link_station,
5165 .del_link_station = ieee80211_del_link_station,
5166 .set_hw_timestamp = ieee80211_set_hw_timestamp,
5167 .set_ttlm = ieee80211_set_ttlm,
5168};
5169

source code of linux/net/mac80211/cfg.c