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
26 static struct ieee80211_link_data *
ieee80211_link_or_deflink(struct ieee80211_sub_if_data * sdata,int link_id,bool require_valid)27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id,
28 bool require_valid)
29 {
30 struct ieee80211_link_data *link;
31
32 if (link_id < 0) {
33 /*
34 * For keys, if sdata is not an MLD, we might not use
35 * the return value at all (if it's not a pairwise key),
36 * so in that case (require_valid==false) don't error.
37 */
38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif))
39 return ERR_PTR(-EINVAL);
40
41 return &sdata->deflink;
42 }
43
44 link = sdata_dereference(sdata->link[link_id], sdata);
45 if (!link)
46 return ERR_PTR(-ENOLINK);
47 return link;
48 }
49
ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data * sdata,struct vif_params * params)50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
51 struct vif_params *params)
52 {
53 bool mu_mimo_groups = false;
54 bool mu_mimo_follow = false;
55
56 if (params->vht_mumimo_groups) {
57 u64 membership;
58
59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
60
61 memcpy(sdata->vif.bss_conf.mu_group.membership,
62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
63 memcpy(sdata->vif.bss_conf.mu_group.position,
64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
65 WLAN_USER_POSITION_LEN);
66 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
67 BSS_CHANGED_MU_GROUPS);
68 /* don't care about endianness - just check for 0 */
69 memcpy(&membership, params->vht_mumimo_groups,
70 WLAN_MEMBERSHIP_LEN);
71 mu_mimo_groups = membership != 0;
72 }
73
74 if (params->vht_mumimo_follow_addr) {
75 mu_mimo_follow =
76 is_valid_ether_addr(params->vht_mumimo_follow_addr);
77 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
78 params->vht_mumimo_follow_addr);
79 }
80
81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
82 }
83
ieee80211_set_mon_options(struct ieee80211_sub_if_data * sdata,struct vif_params * params)84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
85 struct vif_params *params)
86 {
87 struct ieee80211_local *local = sdata->local;
88 struct ieee80211_sub_if_data *monitor_sdata;
89
90 /* check flags first */
91 if (params->flags && ieee80211_sdata_running(sdata)) {
92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
93
94 /*
95 * Prohibit MONITOR_FLAG_COOK_FRAMES and
96 * MONITOR_FLAG_ACTIVE to be changed while the
97 * interface is up.
98 * Else we would need to add a lot of cruft
99 * to update everything:
100 * cooked_mntrs, monitor and all fif_* counters
101 * reconfigure hardware
102 */
103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
104 return -EBUSY;
105 }
106
107 /* also validate MU-MIMO change */
108 monitor_sdata = wiphy_dereference(local->hw.wiphy,
109 local->monitor_sdata);
110
111 if (!monitor_sdata &&
112 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
113 return -EOPNOTSUPP;
114
115 /* apply all changes now - no failures allowed */
116
117 if (monitor_sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
118 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
119
120 if (params->flags) {
121 if (ieee80211_sdata_running(sdata)) {
122 ieee80211_adjust_monitor_flags(sdata, -1);
123 sdata->u.mntr.flags = params->flags;
124 ieee80211_adjust_monitor_flags(sdata, 1);
125
126 ieee80211_configure_filter(local);
127 } else {
128 /*
129 * Because the interface is down, ieee80211_do_stop
130 * and ieee80211_do_open take care of "everything"
131 * mentioned in the comment above.
132 */
133 sdata->u.mntr.flags = params->flags;
134 }
135 }
136
137 return 0;
138 }
139
ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data * sdata,struct cfg80211_mbssid_config params,struct ieee80211_bss_conf * link_conf)140 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
141 struct cfg80211_mbssid_config params,
142 struct ieee80211_bss_conf *link_conf)
143 {
144 struct ieee80211_sub_if_data *tx_sdata;
145
146 sdata->vif.mbssid_tx_vif = NULL;
147 link_conf->bssid_index = 0;
148 link_conf->nontransmitted = false;
149 link_conf->ema_ap = false;
150 link_conf->bssid_indicator = 0;
151
152 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev)
153 return -EINVAL;
154
155 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev);
156 if (!tx_sdata)
157 return -EINVAL;
158
159 if (tx_sdata == sdata) {
160 sdata->vif.mbssid_tx_vif = &sdata->vif;
161 } else {
162 sdata->vif.mbssid_tx_vif = &tx_sdata->vif;
163 link_conf->nontransmitted = true;
164 link_conf->bssid_index = params.index;
165 }
166 if (params.ema)
167 link_conf->ema_ap = true;
168
169 return 0;
170 }
171
ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)172 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
173 const char *name,
174 unsigned char name_assign_type,
175 enum nl80211_iftype type,
176 struct vif_params *params)
177 {
178 struct ieee80211_local *local = wiphy_priv(wiphy);
179 struct wireless_dev *wdev;
180 struct ieee80211_sub_if_data *sdata;
181 int err;
182
183 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
184 if (err)
185 return ERR_PTR(err);
186
187 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
188
189 if (type == NL80211_IFTYPE_MONITOR) {
190 err = ieee80211_set_mon_options(sdata, params);
191 if (err) {
192 ieee80211_if_remove(sdata);
193 return NULL;
194 }
195 }
196
197 return wdev;
198 }
199
ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)200 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
201 {
202 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
203
204 return 0;
205 }
206
ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)207 static int ieee80211_change_iface(struct wiphy *wiphy,
208 struct net_device *dev,
209 enum nl80211_iftype type,
210 struct vif_params *params)
211 {
212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
213 struct ieee80211_local *local = sdata->local;
214 struct sta_info *sta;
215 int ret;
216
217 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(&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, sdata->deflink.u.mgd.bssid);
241 if (sta)
242 drv_sta_set_4addr(local, sdata, &sta->sta,
243 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
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)258 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
259 struct wireless_dev *wdev)
260 {
261 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
262 int ret;
263
264 lockdep_assert_wiphy(sdata->local->hw.wiphy);
265
266 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
267 if (ret < 0)
268 return ret;
269
270 return ieee80211_do_open(wdev, true);
271 }
272
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)273 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
274 struct wireless_dev *wdev)
275 {
276 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
277 }
278
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)279 static int ieee80211_start_nan(struct wiphy *wiphy,
280 struct wireless_dev *wdev,
281 struct cfg80211_nan_conf *conf)
282 {
283 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
284 int ret;
285
286 lockdep_assert_wiphy(sdata->local->hw.wiphy);
287
288 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
289 if (ret < 0)
290 return ret;
291
292 ret = ieee80211_do_open(wdev, true);
293 if (ret)
294 return ret;
295
296 ret = drv_start_nan(sdata->local, sdata, conf);
297 if (ret)
298 ieee80211_sdata_stop(sdata);
299
300 sdata->u.nan.conf = *conf;
301
302 return ret;
303 }
304
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)305 static void ieee80211_stop_nan(struct wiphy *wiphy,
306 struct wireless_dev *wdev)
307 {
308 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
309
310 drv_stop_nan(sdata->local, sdata);
311 ieee80211_sdata_stop(sdata);
312 }
313
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)314 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
315 struct wireless_dev *wdev,
316 struct cfg80211_nan_conf *conf,
317 u32 changes)
318 {
319 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
320 struct cfg80211_nan_conf new_conf;
321 int ret = 0;
322
323 if (sdata->vif.type != NL80211_IFTYPE_NAN)
324 return -EOPNOTSUPP;
325
326 if (!ieee80211_sdata_running(sdata))
327 return -ENETDOWN;
328
329 new_conf = sdata->u.nan.conf;
330
331 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
332 new_conf.master_pref = conf->master_pref;
333
334 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
335 new_conf.bands = conf->bands;
336
337 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
338 if (!ret)
339 sdata->u.nan.conf = new_conf;
340
341 return ret;
342 }
343
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)344 static int ieee80211_add_nan_func(struct wiphy *wiphy,
345 struct wireless_dev *wdev,
346 struct cfg80211_nan_func *nan_func)
347 {
348 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
349 int ret;
350
351 if (sdata->vif.type != NL80211_IFTYPE_NAN)
352 return -EOPNOTSUPP;
353
354 if (!ieee80211_sdata_running(sdata))
355 return -ENETDOWN;
356
357 spin_lock_bh(&sdata->u.nan.func_lock);
358
359 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
360 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
361 GFP_ATOMIC);
362 spin_unlock_bh(&sdata->u.nan.func_lock);
363
364 if (ret < 0)
365 return ret;
366
367 nan_func->instance_id = ret;
368
369 WARN_ON(nan_func->instance_id == 0);
370
371 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
372 if (ret) {
373 spin_lock_bh(&sdata->u.nan.func_lock);
374 idr_remove(&sdata->u.nan.function_inst_ids,
375 nan_func->instance_id);
376 spin_unlock_bh(&sdata->u.nan.func_lock);
377 }
378
379 return ret;
380 }
381
382 static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)383 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
384 u64 cookie)
385 {
386 struct cfg80211_nan_func *func;
387 int id;
388
389 lockdep_assert_held(&sdata->u.nan.func_lock);
390
391 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
392 if (func->cookie == cookie)
393 return func;
394 }
395
396 return NULL;
397 }
398
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)399 static void ieee80211_del_nan_func(struct wiphy *wiphy,
400 struct wireless_dev *wdev, u64 cookie)
401 {
402 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
403 struct cfg80211_nan_func *func;
404 u8 instance_id = 0;
405
406 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
407 !ieee80211_sdata_running(sdata))
408 return;
409
410 spin_lock_bh(&sdata->u.nan.func_lock);
411
412 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
413 if (func)
414 instance_id = func->instance_id;
415
416 spin_unlock_bh(&sdata->u.nan.func_lock);
417
418 if (instance_id)
419 drv_del_nan_func(sdata->local, sdata, instance_id);
420 }
421
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)422 static int ieee80211_set_noack_map(struct wiphy *wiphy,
423 struct net_device *dev,
424 u16 noack_map)
425 {
426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
427
428 sdata->noack_map = noack_map;
429
430 ieee80211_check_fast_xmit_iface(sdata);
431
432 return 0;
433 }
434
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)435 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
436 const u8 *mac_addr, u8 key_idx)
437 {
438 struct ieee80211_local *local = sdata->local;
439 struct ieee80211_key *key;
440 struct sta_info *sta;
441 int ret = -EINVAL;
442
443 if (!wiphy_ext_feature_isset(local->hw.wiphy,
444 NL80211_EXT_FEATURE_EXT_KEY_ID))
445 return -EINVAL;
446
447 sta = sta_info_get_bss(sdata, mac_addr);
448
449 if (!sta)
450 return -EINVAL;
451
452 if (sta->ptk_idx == key_idx)
453 return 0;
454
455 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
ieee80211_add_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)463 static 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, 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(link))
481 return PTR_ERR(link);
482
483 if (pairwise && params->mode == NL80211_KEY_SET_TX)
484 return ieee80211_set_tx(sdata, mac_addr, key_idx);
485
486 /* reject WEP and TKIP keys if WEP failed to initialize */
487 switch (params->cipher) {
488 case WLAN_CIPHER_SUITE_WEP40:
489 case WLAN_CIPHER_SUITE_TKIP:
490 case WLAN_CIPHER_SUITE_WEP104:
491 if (link_id >= 0)
492 return -EINVAL;
493 if (WARN_ON_ONCE(fips_enabled))
494 return -EINVAL;
495 break;
496 default:
497 break;
498 }
499
500 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
501 params->key, params->seq_len, params->seq);
502 if (IS_ERR(key))
503 return PTR_ERR(key);
504
505 key->conf.link_id = link_id;
506
507 if (pairwise)
508 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
509
510 if (params->mode == NL80211_KEY_NO_TX)
511 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
512
513 if (mac_addr) {
514 sta = sta_info_get_bss(sdata, 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, 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, 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
573 static struct ieee80211_key *
ieee80211_lookup_key(struct ieee80211_sub_if_data * sdata,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr)574 ieee80211_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, 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
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr)632 static 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, sdata->vif.type == NL80211_IFTYPE_STATION);
647
648 return 0;
649 }
650
ieee80211_get_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params * params))651 static 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(¶ms, 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(&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(sdata->local, key, &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(sdata->local, key, &kseq);
721 memcpy(seq, kseq.ccmp.pn, 6);
722 } else {
723 pn64 = atomic64_read(&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(sdata->local, key, &kseq);
740 params.seq = kseq.hw.seq;
741 params.seq_len = kseq.hw.seq_len;
742 break;
743 }
744
745 callback(cookie, ¶ms);
746 err = 0;
747
748 out:
749 rcu_read_unlock();
750 return err;
751 }
752
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool uni,bool multi)753 static int ieee80211_config_default_key(struct wiphy *wiphy,
754 struct net_device *dev,
755 int link_id, u8 key_idx, bool uni,
756 bool multi)
757 {
758 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
759 struct ieee80211_link_data *link =
760 ieee80211_link_or_deflink(sdata, link_id, false);
761
762 if (IS_ERR(link))
763 return PTR_ERR(link);
764
765 ieee80211_set_default_key(link, key_idx, uni, multi);
766
767 return 0;
768 }
769
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)770 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
771 struct net_device *dev,
772 int link_id, u8 key_idx)
773 {
774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
775 struct ieee80211_link_data *link =
776 ieee80211_link_or_deflink(sdata, link_id, true);
777
778 if (IS_ERR(link))
779 return PTR_ERR(link);
780
781 ieee80211_set_default_mgmt_key(link, key_idx);
782
783 return 0;
784 }
785
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)786 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
787 struct net_device *dev,
788 int link_id, u8 key_idx)
789 {
790 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
791 struct ieee80211_link_data *link =
792 ieee80211_link_or_deflink(sdata, link_id, true);
793
794 if (IS_ERR(link))
795 return PTR_ERR(link);
796
797 ieee80211_set_default_beacon_key(link, key_idx);
798
799 return 0;
800 }
801
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)802 void sta_set_rate_info_tx(struct sta_info *sta,
803 const struct ieee80211_tx_rate *rate,
804 struct rate_info *rinfo)
805 {
806 rinfo->flags = 0;
807 if (rate->flags & IEEE80211_TX_RC_MCS) {
808 rinfo->flags |= RATE_INFO_FLAGS_MCS;
809 rinfo->mcs = rate->idx;
810 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
811 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
812 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
813 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
814 } else {
815 struct ieee80211_supported_band *sband;
816
817 sband = ieee80211_get_sband(sta->sdata);
818 WARN_ON_ONCE(sband && !sband->bitrates);
819 if (sband && sband->bitrates)
820 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
821 }
822 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
823 rinfo->bw = RATE_INFO_BW_40;
824 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
825 rinfo->bw = RATE_INFO_BW_80;
826 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
827 rinfo->bw = RATE_INFO_BW_160;
828 else
829 rinfo->bw = RATE_INFO_BW_20;
830 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
831 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
832 }
833
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)834 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
835 int idx, u8 *mac, struct station_info *sinfo)
836 {
837 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
838 struct ieee80211_local *local = sdata->local;
839 struct sta_info *sta;
840 int ret = -ENOENT;
841
842 lockdep_assert_wiphy(local->hw.wiphy);
843
844 sta = sta_info_get_by_idx(sdata, idx);
845 if (sta) {
846 ret = 0;
847 memcpy(mac, sta->sta.addr, ETH_ALEN);
848 sta_set_sinfo(sta, sinfo, true);
849 }
850
851 return ret;
852 }
853
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)854 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
855 int idx, struct survey_info *survey)
856 {
857 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
858
859 return drv_get_survey(local, idx, survey);
860 }
861
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)862 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
863 const u8 *mac, struct station_info *sinfo)
864 {
865 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
866 struct ieee80211_local *local = sdata->local;
867 struct sta_info *sta;
868 int ret = -ENOENT;
869
870 lockdep_assert_wiphy(local->hw.wiphy);
871
872 sta = sta_info_get_bss(sdata, mac);
873 if (sta) {
874 ret = 0;
875 sta_set_sinfo(sta, sinfo, true);
876 }
877
878 return ret;
879 }
880
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)881 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
882 struct cfg80211_chan_def *chandef)
883 {
884 struct ieee80211_local *local = wiphy_priv(wiphy);
885 struct ieee80211_sub_if_data *sdata;
886 struct ieee80211_chan_req chanreq = { .oper = *chandef };
887 int ret;
888
889 lockdep_assert_wiphy(local->hw.wiphy);
890
891 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper,
892 &chanreq.oper))
893 return 0;
894
895 sdata = wiphy_dereference(local->hw.wiphy,
896 local->monitor_sdata);
897 if (!sdata)
898 goto done;
899
900 if (cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper,
901 &chanreq.oper))
902 return 0;
903
904 ieee80211_link_release_channel(&sdata->deflink);
905 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
906 IEEE80211_CHANCTX_EXCLUSIVE);
907 if (ret)
908 return ret;
909 done:
910 local->monitor_chanreq = chanreq;
911 return 0;
912 }
913
914 static int
ieee80211_set_probe_resp(struct ieee80211_sub_if_data * sdata,const u8 * resp,size_t resp_len,const struct ieee80211_csa_settings * csa,const struct ieee80211_color_change_settings * cca,struct ieee80211_link_data * link)915 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
916 const u8 *resp, size_t resp_len,
917 const struct ieee80211_csa_settings *csa,
918 const struct ieee80211_color_change_settings *cca,
919 struct ieee80211_link_data *link)
920 {
921 struct probe_resp *new, *old;
922
923 if (!resp || !resp_len)
924 return 1;
925
926 old = sdata_dereference(link->u.ap.probe_resp, sdata);
927
928 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
929 if (!new)
930 return -ENOMEM;
931
932 new->len = resp_len;
933 memcpy(new->data, resp, resp_len);
934
935 if (csa)
936 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
937 csa->n_counter_offsets_presp *
938 sizeof(new->cntdwn_counter_offsets[0]));
939 else if (cca)
940 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
941
942 rcu_assign_pointer(link->u.ap.probe_resp, new);
943 if (old)
944 kfree_rcu(old, rcu_head);
945
946 return 0;
947 }
948
ieee80211_set_fils_discovery(struct ieee80211_sub_if_data * sdata,struct cfg80211_fils_discovery * params,struct ieee80211_link_data * link,struct ieee80211_bss_conf * link_conf,u64 * changed)949 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
950 struct cfg80211_fils_discovery *params,
951 struct ieee80211_link_data *link,
952 struct ieee80211_bss_conf *link_conf,
953 u64 *changed)
954 {
955 struct fils_discovery_data *new, *old = NULL;
956 struct ieee80211_fils_discovery *fd;
957
958 if (!params->update)
959 return 0;
960
961 fd = &link_conf->fils_discovery;
962 fd->min_interval = params->min_interval;
963 fd->max_interval = params->max_interval;
964
965 old = sdata_dereference(link->u.ap.fils_discovery, sdata);
966 if (old)
967 kfree_rcu(old, rcu_head);
968
969 if (params->tmpl && params->tmpl_len) {
970 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
971 if (!new)
972 return -ENOMEM;
973 new->len = params->tmpl_len;
974 memcpy(new->data, params->tmpl, params->tmpl_len);
975 rcu_assign_pointer(link->u.ap.fils_discovery, new);
976 } else {
977 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
978 }
979
980 *changed |= BSS_CHANGED_FILS_DISCOVERY;
981 return 0;
982 }
983
984 static int
ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data * sdata,struct cfg80211_unsol_bcast_probe_resp * params,struct ieee80211_link_data * link,struct ieee80211_bss_conf * link_conf,u64 * changed)985 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
986 struct cfg80211_unsol_bcast_probe_resp *params,
987 struct ieee80211_link_data *link,
988 struct ieee80211_bss_conf *link_conf,
989 u64 *changed)
990 {
991 struct unsol_bcast_probe_resp_data *new, *old = NULL;
992
993 if (!params->update)
994 return 0;
995
996 link_conf->unsol_bcast_probe_resp_interval = params->interval;
997
998 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
999 if (old)
1000 kfree_rcu(old, rcu_head);
1001
1002 if (params->tmpl && params->tmpl_len) {
1003 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1004 if (!new)
1005 return -ENOMEM;
1006 new->len = params->tmpl_len;
1007 memcpy(new->data, params->tmpl, params->tmpl_len);
1008 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
1009 } else {
1010 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1011 }
1012
1013 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1014 return 0;
1015 }
1016
ieee80211_set_ftm_responder_params(struct ieee80211_sub_if_data * sdata,const u8 * lci,size_t lci_len,const u8 * civicloc,size_t civicloc_len,struct ieee80211_bss_conf * link_conf)1017 static int ieee80211_set_ftm_responder_params(
1018 struct ieee80211_sub_if_data *sdata,
1019 const u8 *lci, size_t lci_len,
1020 const u8 *civicloc, size_t civicloc_len,
1021 struct ieee80211_bss_conf *link_conf)
1022 {
1023 struct ieee80211_ftm_responder_params *new, *old;
1024 u8 *pos;
1025 int len;
1026
1027 if (!lci_len && !civicloc_len)
1028 return 0;
1029
1030 old = link_conf->ftmr_params;
1031 len = lci_len + civicloc_len;
1032
1033 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
1034 if (!new)
1035 return -ENOMEM;
1036
1037 pos = (u8 *)(new + 1);
1038 if (lci_len) {
1039 new->lci_len = lci_len;
1040 new->lci = pos;
1041 memcpy(pos, lci, lci_len);
1042 pos += lci_len;
1043 }
1044
1045 if (civicloc_len) {
1046 new->civicloc_len = civicloc_len;
1047 new->civicloc = pos;
1048 memcpy(pos, civicloc, civicloc_len);
1049 pos += civicloc_len;
1050 }
1051
1052 link_conf->ftmr_params = new;
1053 kfree(old);
1054
1055 return 0;
1056 }
1057
1058 static int
ieee80211_copy_mbssid_beacon(u8 * pos,struct cfg80211_mbssid_elems * dst,struct cfg80211_mbssid_elems * src)1059 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
1060 struct cfg80211_mbssid_elems *src)
1061 {
1062 int i, offset = 0;
1063
1064 for (i = 0; i < src->cnt; i++) {
1065 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1066 dst->elem[i].len = src->elem[i].len;
1067 dst->elem[i].data = pos + offset;
1068 offset += dst->elem[i].len;
1069 }
1070 dst->cnt = src->cnt;
1071
1072 return offset;
1073 }
1074
1075 static int
ieee80211_copy_rnr_beacon(u8 * pos,struct cfg80211_rnr_elems * dst,struct cfg80211_rnr_elems * src)1076 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst,
1077 struct cfg80211_rnr_elems *src)
1078 {
1079 int i, offset = 0;
1080
1081 for (i = 0; i < src->cnt; i++) {
1082 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1083 dst->elem[i].len = src->elem[i].len;
1084 dst->elem[i].data = pos + offset;
1085 offset += dst->elem[i].len;
1086 }
1087 dst->cnt = src->cnt;
1088
1089 return offset;
1090 }
1091
1092 static int
ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa,const struct ieee80211_color_change_settings * cca,u64 * changed)1093 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1094 struct ieee80211_link_data *link,
1095 struct cfg80211_beacon_data *params,
1096 const struct ieee80211_csa_settings *csa,
1097 const struct ieee80211_color_change_settings *cca,
1098 u64 *changed)
1099 {
1100 struct cfg80211_mbssid_elems *mbssid = NULL;
1101 struct cfg80211_rnr_elems *rnr = NULL;
1102 struct beacon_data *new, *old;
1103 int new_head_len, new_tail_len;
1104 int size, err;
1105 u64 _changed = BSS_CHANGED_BEACON;
1106 struct ieee80211_bss_conf *link_conf = link->conf;
1107
1108 old = sdata_dereference(link->u.ap.beacon, sdata);
1109
1110 /* Need to have a beacon head if we don't have one yet */
1111 if (!params->head && !old)
1112 return -EINVAL;
1113
1114 /* new or old head? */
1115 if (params->head)
1116 new_head_len = params->head_len;
1117 else
1118 new_head_len = old->head_len;
1119
1120 /* new or old tail? */
1121 if (params->tail || !old)
1122 /* params->tail_len will be zero for !params->tail */
1123 new_tail_len = params->tail_len;
1124 else
1125 new_tail_len = old->tail_len;
1126
1127 size = sizeof(*new) + new_head_len + new_tail_len;
1128
1129 /* new or old multiple BSSID elements? */
1130 if (params->mbssid_ies) {
1131 mbssid = params->mbssid_ies;
1132 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1133 if (params->rnr_ies) {
1134 rnr = params->rnr_ies;
1135 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1136 }
1137 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1138 mbssid->cnt);
1139 } else if (old && old->mbssid_ies) {
1140 mbssid = old->mbssid_ies;
1141 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1142 if (old && old->rnr_ies) {
1143 rnr = old->rnr_ies;
1144 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1145 }
1146 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1147 mbssid->cnt);
1148 }
1149
1150 new = kzalloc(size, GFP_KERNEL);
1151 if (!new)
1152 return -ENOMEM;
1153
1154 /* start filling the new info now */
1155
1156 /*
1157 * pointers go into the block we allocated,
1158 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies
1159 */
1160 new->head = ((u8 *) new) + sizeof(*new);
1161 new->tail = new->head + new_head_len;
1162 new->head_len = new_head_len;
1163 new->tail_len = new_tail_len;
1164 /* copy in optional mbssid_ies */
1165 if (mbssid) {
1166 u8 *pos = new->tail + new->tail_len;
1167
1168 new->mbssid_ies = (void *)pos;
1169 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1170 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies,
1171 mbssid);
1172 if (rnr) {
1173 new->rnr_ies = (void *)pos;
1174 pos += struct_size(new->rnr_ies, elem, rnr->cnt);
1175 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr);
1176 }
1177 /* update bssid_indicator */
1178 link_conf->bssid_indicator =
1179 ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1180 }
1181
1182 if (csa) {
1183 new->cntdwn_current_counter = csa->count;
1184 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1185 csa->n_counter_offsets_beacon *
1186 sizeof(new->cntdwn_counter_offsets[0]));
1187 } else if (cca) {
1188 new->cntdwn_current_counter = cca->count;
1189 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1190 }
1191
1192 /* copy in head */
1193 if (params->head)
1194 memcpy(new->head, params->head, new_head_len);
1195 else
1196 memcpy(new->head, old->head, new_head_len);
1197
1198 /* copy in optional tail */
1199 if (params->tail)
1200 memcpy(new->tail, params->tail, new_tail_len);
1201 else
1202 if (old)
1203 memcpy(new->tail, old->tail, new_tail_len);
1204
1205 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1206 params->probe_resp_len, csa, cca, link);
1207 if (err < 0) {
1208 kfree(new);
1209 return err;
1210 }
1211 if (err == 0)
1212 _changed |= BSS_CHANGED_AP_PROBE_RESP;
1213
1214 if (params->ftm_responder != -1) {
1215 link_conf->ftm_responder = params->ftm_responder;
1216 err = ieee80211_set_ftm_responder_params(sdata,
1217 params->lci,
1218 params->lci_len,
1219 params->civicloc,
1220 params->civicloc_len,
1221 link_conf);
1222
1223 if (err < 0) {
1224 kfree(new);
1225 return err;
1226 }
1227
1228 _changed |= BSS_CHANGED_FTM_RESPONDER;
1229 }
1230
1231 rcu_assign_pointer(link->u.ap.beacon, new);
1232 sdata->u.ap.active = true;
1233
1234 if (old)
1235 kfree_rcu(old, rcu_head);
1236
1237 *changed |= _changed;
1238 return 0;
1239 }
1240
ieee80211_num_beaconing_links(struct ieee80211_sub_if_data * sdata)1241 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata)
1242 {
1243 struct ieee80211_link_data *link;
1244 u8 link_id, num = 0;
1245
1246 if (sdata->vif.type != NL80211_IFTYPE_AP &&
1247 sdata->vif.type != NL80211_IFTYPE_P2P_GO)
1248 return num;
1249
1250 if (!sdata->vif.valid_links)
1251 return num;
1252
1253 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
1254 link = sdata_dereference(sdata->link[link_id], sdata);
1255 if (!link)
1256 continue;
1257
1258 if (sdata_dereference(link->u.ap.beacon, sdata))
1259 num++;
1260 }
1261
1262 return num;
1263 }
1264
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1265 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1266 struct cfg80211_ap_settings *params)
1267 {
1268 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1269 struct ieee80211_local *local = sdata->local;
1270 struct beacon_data *old;
1271 struct ieee80211_sub_if_data *vlan;
1272 u64 changed = BSS_CHANGED_BEACON_INT |
1273 BSS_CHANGED_BEACON_ENABLED |
1274 BSS_CHANGED_BEACON |
1275 BSS_CHANGED_P2P_PS |
1276 BSS_CHANGED_TXPOWER |
1277 BSS_CHANGED_TWT;
1278 int i, err;
1279 int prev_beacon_int;
1280 unsigned int link_id = params->beacon.link_id;
1281 struct ieee80211_link_data *link;
1282 struct ieee80211_bss_conf *link_conf;
1283 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
1284
1285 lockdep_assert_wiphy(local->hw.wiphy);
1286
1287 link = sdata_dereference(sdata->link[link_id], sdata);
1288 if (!link)
1289 return -ENOLINK;
1290
1291 link_conf = link->conf;
1292
1293 old = sdata_dereference(link->u.ap.beacon, sdata);
1294 if (old)
1295 return -EALREADY;
1296
1297 if (params->smps_mode != NL80211_SMPS_OFF)
1298 return -EOPNOTSUPP;
1299
1300 link->smps_mode = IEEE80211_SMPS_OFF;
1301
1302 link->needed_rx_chains = sdata->local->rx_chains;
1303
1304 prev_beacon_int = link_conf->beacon_int;
1305 link_conf->beacon_int = params->beacon_interval;
1306
1307 if (params->ht_cap)
1308 link_conf->ht_ldpc =
1309 params->ht_cap->cap_info &
1310 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING);
1311
1312 if (params->vht_cap) {
1313 link_conf->vht_ldpc =
1314 params->vht_cap->vht_cap_info &
1315 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC);
1316 link_conf->vht_su_beamformer =
1317 params->vht_cap->vht_cap_info &
1318 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
1319 link_conf->vht_su_beamformee =
1320 params->vht_cap->vht_cap_info &
1321 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
1322 link_conf->vht_mu_beamformer =
1323 params->vht_cap->vht_cap_info &
1324 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
1325 link_conf->vht_mu_beamformee =
1326 params->vht_cap->vht_cap_info &
1327 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
1328 }
1329
1330 if (params->he_cap && params->he_oper) {
1331 link_conf->he_support = true;
1332 link_conf->htc_trig_based_pkt_ext =
1333 le32_get_bits(params->he_oper->he_oper_params,
1334 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1335 link_conf->frame_time_rts_th =
1336 le32_get_bits(params->he_oper->he_oper_params,
1337 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1338 changed |= BSS_CHANGED_HE_OBSS_PD;
1339
1340 if (params->beacon.he_bss_color.enabled)
1341 changed |= BSS_CHANGED_HE_BSS_COLOR;
1342 }
1343
1344 if (params->he_cap) {
1345 link_conf->he_ldpc =
1346 params->he_cap->phy_cap_info[1] &
1347 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
1348 link_conf->he_su_beamformer =
1349 params->he_cap->phy_cap_info[3] &
1350 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
1351 link_conf->he_su_beamformee =
1352 params->he_cap->phy_cap_info[4] &
1353 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
1354 link_conf->he_mu_beamformer =
1355 params->he_cap->phy_cap_info[4] &
1356 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
1357 link_conf->he_full_ul_mumimo =
1358 params->he_cap->phy_cap_info[2] &
1359 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
1360 }
1361
1362 if (params->eht_cap) {
1363 if (!link_conf->he_support)
1364 return -EOPNOTSUPP;
1365
1366 link_conf->eht_support = true;
1367
1368 link_conf->eht_su_beamformer =
1369 params->eht_cap->fixed.phy_cap_info[0] &
1370 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER;
1371 link_conf->eht_su_beamformee =
1372 params->eht_cap->fixed.phy_cap_info[0] &
1373 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
1374 link_conf->eht_mu_beamformer =
1375 params->eht_cap->fixed.phy_cap_info[7] &
1376 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
1377 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
1378 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ);
1379 link_conf->eht_80mhz_full_bw_ul_mumimo =
1380 params->eht_cap->fixed.phy_cap_info[7] &
1381 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
1382 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
1383 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ);
1384 } else {
1385 link_conf->eht_su_beamformer = false;
1386 link_conf->eht_su_beamformee = false;
1387 link_conf->eht_mu_beamformer = false;
1388 }
1389
1390 if (sdata->vif.type == NL80211_IFTYPE_AP &&
1391 params->mbssid_config.tx_wdev) {
1392 err = ieee80211_set_ap_mbssid_options(sdata,
1393 params->mbssid_config,
1394 link_conf);
1395 if (err)
1396 return err;
1397 }
1398
1399 err = ieee80211_link_use_channel(link, &chanreq,
1400 IEEE80211_CHANCTX_SHARED);
1401 if (!err)
1402 ieee80211_link_copy_chanctx_to_vlans(link, false);
1403 if (err) {
1404 link_conf->beacon_int = prev_beacon_int;
1405 return err;
1406 }
1407
1408 /*
1409 * Apply control port protocol, this allows us to
1410 * not encrypt dynamic WEP control frames.
1411 */
1412 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1413 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1414 sdata->control_port_over_nl80211 =
1415 params->crypto.control_port_over_nl80211;
1416 sdata->control_port_no_preauth =
1417 params->crypto.control_port_no_preauth;
1418
1419 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1420 vlan->control_port_protocol =
1421 params->crypto.control_port_ethertype;
1422 vlan->control_port_no_encrypt =
1423 params->crypto.control_port_no_encrypt;
1424 vlan->control_port_over_nl80211 =
1425 params->crypto.control_port_over_nl80211;
1426 vlan->control_port_no_preauth =
1427 params->crypto.control_port_no_preauth;
1428 }
1429
1430 link_conf->dtim_period = params->dtim_period;
1431 link_conf->enable_beacon = true;
1432 link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1433 link_conf->twt_responder = params->twt_responder;
1434 link_conf->he_obss_pd = params->he_obss_pd;
1435 link_conf->he_bss_color = params->beacon.he_bss_color;
1436 sdata->vif.cfg.s1g = params->chandef.chan->band ==
1437 NL80211_BAND_S1GHZ;
1438
1439 sdata->vif.cfg.ssid_len = params->ssid_len;
1440 if (params->ssid_len)
1441 memcpy(sdata->vif.cfg.ssid, params->ssid,
1442 params->ssid_len);
1443 link_conf->hidden_ssid =
1444 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1445
1446 memset(&link_conf->p2p_noa_attr, 0,
1447 sizeof(link_conf->p2p_noa_attr));
1448 link_conf->p2p_noa_attr.oppps_ctwindow =
1449 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1450 if (params->p2p_opp_ps)
1451 link_conf->p2p_noa_attr.oppps_ctwindow |=
1452 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1453
1454 sdata->beacon_rate_set = false;
1455 if (wiphy_ext_feature_isset(local->hw.wiphy,
1456 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1457 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1458 sdata->beacon_rateidx_mask[i] =
1459 params->beacon_rate.control[i].legacy;
1460 if (sdata->beacon_rateidx_mask[i])
1461 sdata->beacon_rate_set = true;
1462 }
1463 }
1464
1465 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1466 link_conf->beacon_tx_rate = params->beacon_rate;
1467
1468 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL,
1469 &changed);
1470 if (err < 0)
1471 goto error;
1472
1473 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery,
1474 link, link_conf, &changed);
1475 if (err < 0)
1476 goto error;
1477
1478 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1479 ¶ms->unsol_bcast_probe_resp,
1480 link, link_conf, &changed);
1481 if (err < 0)
1482 goto error;
1483
1484 err = drv_start_ap(sdata->local, sdata, link_conf);
1485 if (err) {
1486 old = sdata_dereference(link->u.ap.beacon, sdata);
1487
1488 if (old)
1489 kfree_rcu(old, rcu_head);
1490 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1491
1492 if (ieee80211_num_beaconing_links(sdata) == 0)
1493 sdata->u.ap.active = false;
1494
1495 goto error;
1496 }
1497
1498 ieee80211_recalc_dtim(local, sdata);
1499 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1500 ieee80211_link_info_change_notify(sdata, link, changed);
1501
1502 if (ieee80211_num_beaconing_links(sdata) <= 1)
1503 netif_carrier_on(dev);
1504
1505 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1506 netif_carrier_on(vlan->dev);
1507
1508 return 0;
1509
1510 error:
1511 ieee80211_link_release_channel(link);
1512
1513 return err;
1514 }
1515
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_update * params)1516 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1517 struct cfg80211_ap_update *params)
1518
1519 {
1520 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1521 struct ieee80211_link_data *link;
1522 struct cfg80211_beacon_data *beacon = ¶ms->beacon;
1523 struct beacon_data *old;
1524 int err;
1525 struct ieee80211_bss_conf *link_conf;
1526 u64 changed = 0;
1527
1528 lockdep_assert_wiphy(wiphy);
1529
1530 link = sdata_dereference(sdata->link[beacon->link_id], sdata);
1531 if (!link)
1532 return -ENOLINK;
1533
1534 link_conf = link->conf;
1535
1536 /* don't allow changing the beacon while a countdown is in place - offset
1537 * of channel switch counter may change
1538 */
1539 if (link_conf->csa_active || link_conf->color_change_active)
1540 return -EBUSY;
1541
1542 old = sdata_dereference(link->u.ap.beacon, sdata);
1543 if (!old)
1544 return -ENOENT;
1545
1546 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL,
1547 &changed);
1548 if (err < 0)
1549 return err;
1550
1551 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery,
1552 link, link_conf, &changed);
1553 if (err < 0)
1554 return err;
1555
1556 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1557 ¶ms->unsol_bcast_probe_resp,
1558 link, link_conf, &changed);
1559 if (err < 0)
1560 return err;
1561
1562 if (beacon->he_bss_color_valid &&
1563 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1564 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled;
1565 changed |= BSS_CHANGED_HE_BSS_COLOR;
1566 }
1567
1568 ieee80211_link_info_change_notify(sdata, link, changed);
1569 return 0;
1570 }
1571
ieee80211_free_next_beacon(struct ieee80211_link_data * link)1572 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1573 {
1574 if (!link->u.ap.next_beacon)
1575 return;
1576
1577 kfree(link->u.ap.next_beacon->mbssid_ies);
1578 kfree(link->u.ap.next_beacon->rnr_ies);
1579 kfree(link->u.ap.next_beacon);
1580 link->u.ap.next_beacon = NULL;
1581 }
1582
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)1583 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1584 unsigned int link_id)
1585 {
1586 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1587 struct ieee80211_sub_if_data *vlan;
1588 struct ieee80211_local *local = sdata->local;
1589 struct beacon_data *old_beacon;
1590 struct probe_resp *old_probe_resp;
1591 struct fils_discovery_data *old_fils_discovery;
1592 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1593 struct cfg80211_chan_def chandef;
1594 struct ieee80211_link_data *link =
1595 sdata_dereference(sdata->link[link_id], sdata);
1596 struct ieee80211_bss_conf *link_conf = link->conf;
1597 LIST_HEAD(keys);
1598
1599 lockdep_assert_wiphy(local->hw.wiphy);
1600
1601 old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1602 if (!old_beacon)
1603 return -ENOENT;
1604 old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1605 sdata);
1606 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1607 sdata);
1608 old_unsol_bcast_probe_resp =
1609 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1610 sdata);
1611
1612 /* abort any running channel switch or color change */
1613 link_conf->csa_active = false;
1614 link_conf->color_change_active = false;
1615 ieee80211_vif_unblock_queues_csa(sdata);
1616
1617 ieee80211_free_next_beacon(link);
1618
1619 /* turn off carrier for this interface and dependent VLANs */
1620 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1621 netif_carrier_off(vlan->dev);
1622
1623 if (ieee80211_num_beaconing_links(sdata) <= 1) {
1624 netif_carrier_off(dev);
1625 sdata->u.ap.active = false;
1626 }
1627
1628 /* remove beacon and probe response */
1629 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1630 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1631 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1632 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1633 kfree_rcu(old_beacon, rcu_head);
1634 if (old_probe_resp)
1635 kfree_rcu(old_probe_resp, rcu_head);
1636 if (old_fils_discovery)
1637 kfree_rcu(old_fils_discovery, rcu_head);
1638 if (old_unsol_bcast_probe_resp)
1639 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1640
1641 kfree(link_conf->ftmr_params);
1642 link_conf->ftmr_params = NULL;
1643
1644 sdata->vif.mbssid_tx_vif = NULL;
1645 link_conf->bssid_index = 0;
1646 link_conf->nontransmitted = false;
1647 link_conf->ema_ap = false;
1648 link_conf->bssid_indicator = 0;
1649
1650 __sta_info_flush(sdata, true, link_id);
1651
1652 ieee80211_remove_link_keys(link, &keys);
1653 if (!list_empty(&keys)) {
1654 synchronize_net();
1655 ieee80211_free_key_list(local, &keys);
1656 }
1657
1658 link_conf->enable_beacon = false;
1659 sdata->beacon_rate_set = false;
1660 sdata->vif.cfg.ssid_len = 0;
1661 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1662 ieee80211_link_info_change_notify(sdata, link,
1663 BSS_CHANGED_BEACON_ENABLED);
1664
1665 if (sdata->wdev.links[link_id].cac_started) {
1666 chandef = link_conf->chanreq.oper;
1667 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
1668 cfg80211_cac_event(sdata->dev, &chandef,
1669 NL80211_RADAR_CAC_ABORTED,
1670 GFP_KERNEL, link_id);
1671 }
1672
1673 drv_stop_ap(sdata->local, sdata, link_conf);
1674
1675 /* free all potentially still buffered bcast frames */
1676 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1677 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1678
1679 ieee80211_link_copy_chanctx_to_vlans(link, true);
1680 ieee80211_link_release_channel(link);
1681
1682 return 0;
1683 }
1684
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1685 static int sta_apply_auth_flags(struct ieee80211_local *local,
1686 struct sta_info *sta,
1687 u32 mask, u32 set)
1688 {
1689 int ret;
1690
1691 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1692 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1693 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1694 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1695 if (ret)
1696 return ret;
1697 }
1698
1699 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1700 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1701 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1702 /*
1703 * When peer becomes associated, init rate control as
1704 * well. Some drivers require rate control initialized
1705 * before drv_sta_state() is called.
1706 */
1707 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1708 rate_control_rate_init(sta);
1709
1710 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1711 if (ret)
1712 return ret;
1713 }
1714
1715 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1716 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1717 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1718 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1719 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1720 else
1721 ret = 0;
1722 if (ret)
1723 return ret;
1724 }
1725
1726 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1727 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1728 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1729 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1730 if (ret)
1731 return ret;
1732 }
1733
1734 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1735 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1736 test_sta_flag(sta, WLAN_STA_AUTH)) {
1737 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1738 if (ret)
1739 return ret;
1740 }
1741
1742 return 0;
1743 }
1744
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1745 static void sta_apply_mesh_params(struct ieee80211_local *local,
1746 struct sta_info *sta,
1747 struct station_parameters *params)
1748 {
1749 #ifdef CONFIG_MAC80211_MESH
1750 struct ieee80211_sub_if_data *sdata = sta->sdata;
1751 u64 changed = 0;
1752
1753 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1754 switch (params->plink_state) {
1755 case NL80211_PLINK_ESTAB:
1756 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1757 changed = mesh_plink_inc_estab_count(sdata);
1758 sta->mesh->plink_state = params->plink_state;
1759 sta->mesh->aid = params->peer_aid;
1760
1761 ieee80211_mps_sta_status_update(sta);
1762 changed |= ieee80211_mps_set_sta_local_pm(sta,
1763 sdata->u.mesh.mshcfg.power_mode);
1764
1765 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1766 /* init at low value */
1767 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1768
1769 break;
1770 case NL80211_PLINK_LISTEN:
1771 case NL80211_PLINK_BLOCKED:
1772 case NL80211_PLINK_OPN_SNT:
1773 case NL80211_PLINK_OPN_RCVD:
1774 case NL80211_PLINK_CNF_RCVD:
1775 case NL80211_PLINK_HOLDING:
1776 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1777 changed = mesh_plink_dec_estab_count(sdata);
1778 sta->mesh->plink_state = params->plink_state;
1779
1780 ieee80211_mps_sta_status_update(sta);
1781 changed |= ieee80211_mps_set_sta_local_pm(sta,
1782 NL80211_MESH_POWER_UNKNOWN);
1783 break;
1784 default:
1785 /* nothing */
1786 break;
1787 }
1788 }
1789
1790 switch (params->plink_action) {
1791 case NL80211_PLINK_ACTION_NO_ACTION:
1792 /* nothing */
1793 break;
1794 case NL80211_PLINK_ACTION_OPEN:
1795 changed |= mesh_plink_open(sta);
1796 break;
1797 case NL80211_PLINK_ACTION_BLOCK:
1798 changed |= mesh_plink_block(sta);
1799 break;
1800 }
1801
1802 if (params->local_pm)
1803 changed |= ieee80211_mps_set_sta_local_pm(sta,
1804 params->local_pm);
1805
1806 ieee80211_mbss_info_change_notify(sdata, changed);
1807 #endif
1808 }
1809
1810 enum sta_link_apply_mode {
1811 STA_LINK_MODE_NEW,
1812 STA_LINK_MODE_STA_MODIFY,
1813 STA_LINK_MODE_LINK_MODIFY,
1814 };
1815
sta_link_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,enum sta_link_apply_mode mode,struct link_station_parameters * params)1816 static int sta_link_apply_parameters(struct ieee80211_local *local,
1817 struct sta_info *sta,
1818 enum sta_link_apply_mode mode,
1819 struct link_station_parameters *params)
1820 {
1821 struct ieee80211_supported_band *sband;
1822 struct ieee80211_sub_if_data *sdata = sta->sdata;
1823 u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1824 struct ieee80211_link_data *link =
1825 sdata_dereference(sdata->link[link_id], sdata);
1826 struct link_sta_info *link_sta =
1827 rcu_dereference_protected(sta->link[link_id],
1828 lockdep_is_held(&local->hw.wiphy->mtx));
1829 bool changes = params->link_mac ||
1830 params->txpwr_set ||
1831 params->supported_rates_len ||
1832 params->ht_capa ||
1833 params->vht_capa ||
1834 params->he_capa ||
1835 params->eht_capa ||
1836 params->opmode_notif_used;
1837
1838 switch (mode) {
1839 case STA_LINK_MODE_NEW:
1840 if (!params->link_mac)
1841 return -EINVAL;
1842 break;
1843 case STA_LINK_MODE_LINK_MODIFY:
1844 break;
1845 case STA_LINK_MODE_STA_MODIFY:
1846 if (params->link_id >= 0)
1847 break;
1848 if (!changes)
1849 return 0;
1850 break;
1851 }
1852
1853 if (!link || !link_sta)
1854 return -EINVAL;
1855
1856 sband = ieee80211_get_link_sband(link);
1857 if (!sband)
1858 return -EINVAL;
1859
1860 if (params->link_mac) {
1861 if (mode == STA_LINK_MODE_NEW) {
1862 memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1863 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1864 } else if (!ether_addr_equal(link_sta->addr,
1865 params->link_mac)) {
1866 return -EINVAL;
1867 }
1868 }
1869
1870 if (params->txpwr_set) {
1871 int ret;
1872
1873 link_sta->pub->txpwr.type = params->txpwr.type;
1874 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1875 link_sta->pub->txpwr.power = params->txpwr.power;
1876 ret = drv_sta_set_txpwr(local, sdata, sta);
1877 if (ret)
1878 return ret;
1879 }
1880
1881 if (params->supported_rates &&
1882 params->supported_rates_len) {
1883 ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
1884 sband, params->supported_rates,
1885 params->supported_rates_len,
1886 &link_sta->pub->supp_rates[sband->band]);
1887 }
1888
1889 if (params->ht_capa)
1890 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1891 params->ht_capa, link_sta);
1892
1893 /* VHT can override some HT caps such as the A-MSDU max length */
1894 if (params->vht_capa)
1895 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1896 params->vht_capa, NULL,
1897 link_sta);
1898
1899 if (params->he_capa)
1900 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1901 (void *)params->he_capa,
1902 params->he_capa_len,
1903 (void *)params->he_6ghz_capa,
1904 link_sta);
1905
1906 if (params->he_capa && params->eht_capa)
1907 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1908 (u8 *)params->he_capa,
1909 params->he_capa_len,
1910 params->eht_capa,
1911 params->eht_capa_len,
1912 link_sta);
1913
1914 if (params->opmode_notif_used) {
1915 /* returned value is only needed for rc update, but the
1916 * rc isn't initialized here yet, so ignore it
1917 */
1918 __ieee80211_vht_handle_opmode(sdata, link_sta,
1919 params->opmode_notif,
1920 sband->band);
1921 }
1922
1923 ieee80211_sta_init_nss(link_sta);
1924
1925 return 0;
1926 }
1927
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1928 static int sta_apply_parameters(struct ieee80211_local *local,
1929 struct sta_info *sta,
1930 struct station_parameters *params)
1931 {
1932 struct ieee80211_sub_if_data *sdata = sta->sdata;
1933 u32 mask, set;
1934 int ret = 0;
1935
1936 mask = params->sta_flags_mask;
1937 set = params->sta_flags_set;
1938
1939 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1940 /*
1941 * In mesh mode, ASSOCIATED isn't part of the nl80211
1942 * API but must follow AUTHENTICATED for driver state.
1943 */
1944 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1945 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1946 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1947 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1948 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1949 /*
1950 * TDLS -- everything follows authorized, but
1951 * only becoming authorized is possible, not
1952 * going back
1953 */
1954 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1955 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1956 BIT(NL80211_STA_FLAG_ASSOCIATED);
1957 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1958 BIT(NL80211_STA_FLAG_ASSOCIATED);
1959 }
1960 }
1961
1962 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1963 local->hw.queues >= IEEE80211_NUM_ACS)
1964 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1965
1966 /* auth flags will be set later for TDLS,
1967 * and for unassociated stations that move to associated */
1968 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1969 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1970 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1971 ret = sta_apply_auth_flags(local, sta, mask, set);
1972 if (ret)
1973 return ret;
1974 }
1975
1976 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1977 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1978 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1979 else
1980 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1981 }
1982
1983 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1984 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1985 if (set & BIT(NL80211_STA_FLAG_MFP))
1986 set_sta_flag(sta, WLAN_STA_MFP);
1987 else
1988 clear_sta_flag(sta, WLAN_STA_MFP);
1989 }
1990
1991 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1992 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1993 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1994 else
1995 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1996 }
1997
1998 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU))
1999 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU);
2000
2001 /* mark TDLS channel switch support, if the AP allows it */
2002 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2003 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
2004 params->ext_capab_len >= 4 &&
2005 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
2006 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
2007
2008 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2009 !sdata->u.mgd.tdls_wider_bw_prohibited &&
2010 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
2011 params->ext_capab_len >= 8 &&
2012 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
2013 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
2014
2015 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
2016 sta->sta.uapsd_queues = params->uapsd_queues;
2017 sta->sta.max_sp = params->max_sp;
2018 }
2019
2020 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
2021 params->ext_capab_len);
2022
2023 /*
2024 * cfg80211 validates this (1-2007) and allows setting the AID
2025 * only when creating a new station entry
2026 */
2027 if (params->aid)
2028 sta->sta.aid = params->aid;
2029
2030 /*
2031 * Some of the following updates would be racy if called on an
2032 * existing station, via ieee80211_change_station(). However,
2033 * all such changes are rejected by cfg80211 except for updates
2034 * changing the supported rates on an existing but not yet used
2035 * TDLS peer.
2036 */
2037
2038 if (params->listen_interval >= 0)
2039 sta->listen_interval = params->listen_interval;
2040
2041 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY,
2042 ¶ms->link_sta_params);
2043 if (ret)
2044 return ret;
2045
2046 if (params->support_p2p_ps >= 0)
2047 sta->sta.support_p2p_ps = params->support_p2p_ps;
2048
2049 if (ieee80211_vif_is_mesh(&sdata->vif))
2050 sta_apply_mesh_params(local, sta, params);
2051
2052 if (params->airtime_weight)
2053 sta->airtime_weight = params->airtime_weight;
2054
2055 /* set the STA state after all sta info from usermode has been set */
2056 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
2057 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
2058 ret = sta_apply_auth_flags(local, sta, mask, set);
2059 if (ret)
2060 return ret;
2061 }
2062
2063 /* Mark the STA as MLO if MLD MAC address is available */
2064 if (params->link_sta_params.mld_mac)
2065 sta->sta.mlo = true;
2066
2067 return 0;
2068 }
2069
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2070 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2071 const u8 *mac,
2072 struct station_parameters *params)
2073 {
2074 struct ieee80211_local *local = wiphy_priv(wiphy);
2075 struct sta_info *sta;
2076 struct ieee80211_sub_if_data *sdata;
2077 int err;
2078
2079 lockdep_assert_wiphy(local->hw.wiphy);
2080
2081 if (params->vlan) {
2082 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2083
2084 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2085 sdata->vif.type != NL80211_IFTYPE_AP)
2086 return -EINVAL;
2087 } else
2088 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2089
2090 if (ether_addr_equal(mac, sdata->vif.addr))
2091 return -EINVAL;
2092
2093 if (!is_valid_ether_addr(mac))
2094 return -EINVAL;
2095
2096 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
2097 sdata->vif.type == NL80211_IFTYPE_STATION &&
2098 !sdata->u.mgd.associated)
2099 return -EINVAL;
2100
2101 /*
2102 * If we have a link ID, it can be a non-MLO station on an AP MLD,
2103 * but we need to have a link_mac in that case as well, so use the
2104 * STA's MAC address in that case.
2105 */
2106 if (params->link_sta_params.link_id >= 0)
2107 sta = sta_info_alloc_with_link(sdata, mac,
2108 params->link_sta_params.link_id,
2109 params->link_sta_params.link_mac ?: mac,
2110 GFP_KERNEL);
2111 else
2112 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
2113
2114 if (!sta)
2115 return -ENOMEM;
2116
2117 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2118 sta->sta.tdls = true;
2119
2120 /* Though the mutex is not needed here (since the station is not
2121 * visible yet), sta_apply_parameters (and inner functions) require
2122 * the mutex due to other paths.
2123 */
2124 err = sta_apply_parameters(local, sta, params);
2125 if (err) {
2126 sta_info_free(local, sta);
2127 return err;
2128 }
2129
2130 /*
2131 * for TDLS and for unassociated station, rate control should be
2132 * initialized only when rates are known and station is marked
2133 * authorized/associated
2134 */
2135 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2136 test_sta_flag(sta, WLAN_STA_ASSOC))
2137 rate_control_rate_init(sta);
2138
2139 return sta_info_insert(sta);
2140 }
2141
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)2142 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2143 struct station_del_parameters *params)
2144 {
2145 struct ieee80211_sub_if_data *sdata;
2146
2147 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2148
2149 if (params->mac)
2150 return sta_info_destroy_addr_bss(sdata, params->mac);
2151
2152 sta_info_flush(sdata, params->link_id);
2153 return 0;
2154 }
2155
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2156 static int ieee80211_change_station(struct wiphy *wiphy,
2157 struct net_device *dev, const u8 *mac,
2158 struct station_parameters *params)
2159 {
2160 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2161 struct ieee80211_local *local = wiphy_priv(wiphy);
2162 struct sta_info *sta;
2163 struct ieee80211_sub_if_data *vlansdata;
2164 enum cfg80211_station_type statype;
2165 int err;
2166
2167 lockdep_assert_wiphy(local->hw.wiphy);
2168
2169 sta = sta_info_get_bss(sdata, mac);
2170 if (!sta)
2171 return -ENOENT;
2172
2173 switch (sdata->vif.type) {
2174 case NL80211_IFTYPE_MESH_POINT:
2175 if (sdata->u.mesh.user_mpm)
2176 statype = CFG80211_STA_MESH_PEER_USER;
2177 else
2178 statype = CFG80211_STA_MESH_PEER_KERNEL;
2179 break;
2180 case NL80211_IFTYPE_ADHOC:
2181 statype = CFG80211_STA_IBSS;
2182 break;
2183 case NL80211_IFTYPE_STATION:
2184 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2185 statype = CFG80211_STA_AP_STA;
2186 break;
2187 }
2188 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2189 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2190 else
2191 statype = CFG80211_STA_TDLS_PEER_SETUP;
2192 break;
2193 case NL80211_IFTYPE_AP:
2194 case NL80211_IFTYPE_AP_VLAN:
2195 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2196 statype = CFG80211_STA_AP_CLIENT;
2197 else
2198 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2199 break;
2200 default:
2201 return -EOPNOTSUPP;
2202 }
2203
2204 err = cfg80211_check_station_change(wiphy, params, statype);
2205 if (err)
2206 return err;
2207
2208 if (params->vlan && params->vlan != sta->sdata->dev) {
2209 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2210
2211 if (params->vlan->ieee80211_ptr->use_4addr) {
2212 if (vlansdata->u.vlan.sta)
2213 return -EBUSY;
2214
2215 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2216 __ieee80211_check_fast_rx_iface(vlansdata);
2217 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2218 }
2219
2220 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2221 sta->sdata->u.vlan.sta)
2222 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2223
2224 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2225 ieee80211_vif_dec_num_mcast(sta->sdata);
2226
2227 sta->sdata = vlansdata;
2228 ieee80211_check_fast_rx(sta);
2229 ieee80211_check_fast_xmit(sta);
2230
2231 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2232 ieee80211_vif_inc_num_mcast(sta->sdata);
2233 cfg80211_send_layer2_update(sta->sdata->dev,
2234 sta->sta.addr);
2235 }
2236 }
2237
2238 err = sta_apply_parameters(local, sta, params);
2239 if (err)
2240 return err;
2241
2242 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2243 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2244 ieee80211_recalc_ps(local);
2245 ieee80211_recalc_ps_vif(sdata);
2246 }
2247
2248 return 0;
2249 }
2250
2251 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2252 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2253 const u8 *dst, const u8 *next_hop)
2254 {
2255 struct ieee80211_sub_if_data *sdata;
2256 struct mesh_path *mpath;
2257 struct sta_info *sta;
2258
2259 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2260
2261 rcu_read_lock();
2262 sta = sta_info_get(sdata, next_hop);
2263 if (!sta) {
2264 rcu_read_unlock();
2265 return -ENOENT;
2266 }
2267
2268 mpath = mesh_path_add(sdata, dst);
2269 if (IS_ERR(mpath)) {
2270 rcu_read_unlock();
2271 return PTR_ERR(mpath);
2272 }
2273
2274 mesh_path_fix_nexthop(mpath, sta);
2275
2276 rcu_read_unlock();
2277 return 0;
2278 }
2279
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)2280 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2281 const u8 *dst)
2282 {
2283 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2284
2285 if (dst)
2286 return mesh_path_del(sdata, dst);
2287
2288 mesh_path_flush_by_iface(sdata);
2289 return 0;
2290 }
2291
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2292 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2293 const u8 *dst, const u8 *next_hop)
2294 {
2295 struct ieee80211_sub_if_data *sdata;
2296 struct mesh_path *mpath;
2297 struct sta_info *sta;
2298
2299 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2300
2301 rcu_read_lock();
2302
2303 sta = sta_info_get(sdata, next_hop);
2304 if (!sta) {
2305 rcu_read_unlock();
2306 return -ENOENT;
2307 }
2308
2309 mpath = mesh_path_lookup(sdata, dst);
2310 if (!mpath) {
2311 rcu_read_unlock();
2312 return -ENOENT;
2313 }
2314
2315 mesh_path_fix_nexthop(mpath, sta);
2316
2317 rcu_read_unlock();
2318 return 0;
2319 }
2320
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)2321 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2322 struct mpath_info *pinfo)
2323 {
2324 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2325
2326 if (next_hop_sta)
2327 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2328 else
2329 eth_zero_addr(next_hop);
2330
2331 memset(pinfo, 0, sizeof(*pinfo));
2332
2333 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2334
2335 pinfo->filled = MPATH_INFO_FRAME_QLEN |
2336 MPATH_INFO_SN |
2337 MPATH_INFO_METRIC |
2338 MPATH_INFO_EXPTIME |
2339 MPATH_INFO_DISCOVERY_TIMEOUT |
2340 MPATH_INFO_DISCOVERY_RETRIES |
2341 MPATH_INFO_FLAGS |
2342 MPATH_INFO_HOP_COUNT |
2343 MPATH_INFO_PATH_CHANGE;
2344
2345 pinfo->frame_qlen = mpath->frame_queue.qlen;
2346 pinfo->sn = mpath->sn;
2347 pinfo->metric = mpath->metric;
2348 if (time_before(jiffies, mpath->exp_time))
2349 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2350 pinfo->discovery_timeout =
2351 jiffies_to_msecs(mpath->discovery_timeout);
2352 pinfo->discovery_retries = mpath->discovery_retries;
2353 if (mpath->flags & MESH_PATH_ACTIVE)
2354 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2355 if (mpath->flags & MESH_PATH_RESOLVING)
2356 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2357 if (mpath->flags & MESH_PATH_SN_VALID)
2358 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2359 if (mpath->flags & MESH_PATH_FIXED)
2360 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2361 if (mpath->flags & MESH_PATH_RESOLVED)
2362 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2363 pinfo->hop_count = mpath->hop_count;
2364 pinfo->path_change_count = mpath->path_change_count;
2365 }
2366
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2367 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2368 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2369
2370 {
2371 struct ieee80211_sub_if_data *sdata;
2372 struct mesh_path *mpath;
2373
2374 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2375
2376 rcu_read_lock();
2377 mpath = mesh_path_lookup(sdata, dst);
2378 if (!mpath) {
2379 rcu_read_unlock();
2380 return -ENOENT;
2381 }
2382 memcpy(dst, mpath->dst, ETH_ALEN);
2383 mpath_set_pinfo(mpath, next_hop, pinfo);
2384 rcu_read_unlock();
2385 return 0;
2386 }
2387
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2388 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2389 int idx, u8 *dst, u8 *next_hop,
2390 struct mpath_info *pinfo)
2391 {
2392 struct ieee80211_sub_if_data *sdata;
2393 struct mesh_path *mpath;
2394
2395 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2396
2397 rcu_read_lock();
2398 mpath = mesh_path_lookup_by_idx(sdata, idx);
2399 if (!mpath) {
2400 rcu_read_unlock();
2401 return -ENOENT;
2402 }
2403 memcpy(dst, mpath->dst, ETH_ALEN);
2404 mpath_set_pinfo(mpath, next_hop, pinfo);
2405 rcu_read_unlock();
2406 return 0;
2407 }
2408
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2409 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2410 struct mpath_info *pinfo)
2411 {
2412 memset(pinfo, 0, sizeof(*pinfo));
2413 memcpy(mpp, mpath->mpp, ETH_ALEN);
2414
2415 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2416 }
2417
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2418 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2419 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2420
2421 {
2422 struct ieee80211_sub_if_data *sdata;
2423 struct mesh_path *mpath;
2424
2425 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2426
2427 rcu_read_lock();
2428 mpath = mpp_path_lookup(sdata, dst);
2429 if (!mpath) {
2430 rcu_read_unlock();
2431 return -ENOENT;
2432 }
2433 memcpy(dst, mpath->dst, ETH_ALEN);
2434 mpp_set_pinfo(mpath, mpp, pinfo);
2435 rcu_read_unlock();
2436 return 0;
2437 }
2438
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2439 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2440 int idx, u8 *dst, u8 *mpp,
2441 struct mpath_info *pinfo)
2442 {
2443 struct ieee80211_sub_if_data *sdata;
2444 struct mesh_path *mpath;
2445
2446 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2447
2448 rcu_read_lock();
2449 mpath = mpp_path_lookup_by_idx(sdata, idx);
2450 if (!mpath) {
2451 rcu_read_unlock();
2452 return -ENOENT;
2453 }
2454 memcpy(dst, mpath->dst, ETH_ALEN);
2455 mpp_set_pinfo(mpath, mpp, pinfo);
2456 rcu_read_unlock();
2457 return 0;
2458 }
2459
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2460 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2461 struct net_device *dev,
2462 struct mesh_config *conf)
2463 {
2464 struct ieee80211_sub_if_data *sdata;
2465 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2466
2467 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2468 return 0;
2469 }
2470
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2471 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2472 {
2473 return (mask >> (parm-1)) & 0x1;
2474 }
2475
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2476 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2477 const struct mesh_setup *setup)
2478 {
2479 u8 *new_ie;
2480 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2481 struct ieee80211_sub_if_data, u.mesh);
2482 int i;
2483
2484 /* allocate information elements */
2485 new_ie = NULL;
2486
2487 if (setup->ie_len) {
2488 new_ie = kmemdup(setup->ie, setup->ie_len,
2489 GFP_KERNEL);
2490 if (!new_ie)
2491 return -ENOMEM;
2492 }
2493 ifmsh->ie_len = setup->ie_len;
2494 ifmsh->ie = new_ie;
2495
2496 /* now copy the rest of the setup parameters */
2497 ifmsh->mesh_id_len = setup->mesh_id_len;
2498 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2499 ifmsh->mesh_sp_id = setup->sync_method;
2500 ifmsh->mesh_pp_id = setup->path_sel_proto;
2501 ifmsh->mesh_pm_id = setup->path_metric;
2502 ifmsh->user_mpm = setup->user_mpm;
2503 ifmsh->mesh_auth_id = setup->auth_id;
2504 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2505 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2506 if (setup->is_authenticated)
2507 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2508 if (setup->is_secure)
2509 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2510
2511 /* mcast rate setting in Mesh Node */
2512 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2513 sizeof(setup->mcast_rate));
2514 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2515
2516 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2517 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2518
2519 sdata->beacon_rate_set = false;
2520 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2521 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2522 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2523 sdata->beacon_rateidx_mask[i] =
2524 setup->beacon_rate.control[i].legacy;
2525 if (sdata->beacon_rateidx_mask[i])
2526 sdata->beacon_rate_set = true;
2527 }
2528 }
2529
2530 return 0;
2531 }
2532
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2533 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2534 struct net_device *dev, u32 mask,
2535 const struct mesh_config *nconf)
2536 {
2537 struct mesh_config *conf;
2538 struct ieee80211_sub_if_data *sdata;
2539 struct ieee80211_if_mesh *ifmsh;
2540
2541 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2542 ifmsh = &sdata->u.mesh;
2543
2544 /* Set the config options which we are interested in setting */
2545 conf = &(sdata->u.mesh.mshcfg);
2546 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2547 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2548 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2549 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2550 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2551 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2552 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2553 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2554 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2555 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2556 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2557 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2558 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2559 conf->element_ttl = nconf->element_ttl;
2560 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2561 if (ifmsh->user_mpm)
2562 return -EBUSY;
2563 conf->auto_open_plinks = nconf->auto_open_plinks;
2564 }
2565 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2566 conf->dot11MeshNbrOffsetMaxNeighbor =
2567 nconf->dot11MeshNbrOffsetMaxNeighbor;
2568 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2569 conf->dot11MeshHWMPmaxPREQretries =
2570 nconf->dot11MeshHWMPmaxPREQretries;
2571 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2572 conf->path_refresh_time = nconf->path_refresh_time;
2573 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2574 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2575 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2576 conf->dot11MeshHWMPactivePathTimeout =
2577 nconf->dot11MeshHWMPactivePathTimeout;
2578 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2579 conf->dot11MeshHWMPpreqMinInterval =
2580 nconf->dot11MeshHWMPpreqMinInterval;
2581 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2582 conf->dot11MeshHWMPperrMinInterval =
2583 nconf->dot11MeshHWMPperrMinInterval;
2584 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2585 mask))
2586 conf->dot11MeshHWMPnetDiameterTraversalTime =
2587 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2588 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2589 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2590 ieee80211_mesh_root_setup(ifmsh);
2591 }
2592 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2593 /* our current gate announcement implementation rides on root
2594 * announcements, so require this ifmsh to also be a root node
2595 * */
2596 if (nconf->dot11MeshGateAnnouncementProtocol &&
2597 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2598 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2599 ieee80211_mesh_root_setup(ifmsh);
2600 }
2601 conf->dot11MeshGateAnnouncementProtocol =
2602 nconf->dot11MeshGateAnnouncementProtocol;
2603 }
2604 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2605 conf->dot11MeshHWMPRannInterval =
2606 nconf->dot11MeshHWMPRannInterval;
2607 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2608 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2609 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2610 /* our RSSI threshold implementation is supported only for
2611 * devices that report signal in dBm.
2612 */
2613 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2614 return -EOPNOTSUPP;
2615 conf->rssi_threshold = nconf->rssi_threshold;
2616 }
2617 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2618 conf->ht_opmode = nconf->ht_opmode;
2619 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2620 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2621 BSS_CHANGED_HT);
2622 }
2623 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2624 conf->dot11MeshHWMPactivePathToRootTimeout =
2625 nconf->dot11MeshHWMPactivePathToRootTimeout;
2626 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2627 conf->dot11MeshHWMProotInterval =
2628 nconf->dot11MeshHWMProotInterval;
2629 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2630 conf->dot11MeshHWMPconfirmationInterval =
2631 nconf->dot11MeshHWMPconfirmationInterval;
2632 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2633 conf->power_mode = nconf->power_mode;
2634 ieee80211_mps_local_status_update(sdata);
2635 }
2636 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2637 conf->dot11MeshAwakeWindowDuration =
2638 nconf->dot11MeshAwakeWindowDuration;
2639 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2640 conf->plink_timeout = nconf->plink_timeout;
2641 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2642 conf->dot11MeshConnectedToMeshGate =
2643 nconf->dot11MeshConnectedToMeshGate;
2644 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2645 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2646 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2647 conf->dot11MeshConnectedToAuthServer =
2648 nconf->dot11MeshConnectedToAuthServer;
2649 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2650 return 0;
2651 }
2652
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2653 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2654 const struct mesh_config *conf,
2655 const struct mesh_setup *setup)
2656 {
2657 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2658 struct ieee80211_chan_req chanreq = { .oper = setup->chandef };
2659 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2660 int err;
2661
2662 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2663
2664 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2665 err = copy_mesh_setup(ifmsh, setup);
2666 if (err)
2667 return err;
2668
2669 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2670
2671 /* can mesh use other SMPS modes? */
2672 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2673 sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2674
2675 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
2676 IEEE80211_CHANCTX_SHARED);
2677 if (err)
2678 return err;
2679
2680 return ieee80211_start_mesh(sdata);
2681 }
2682
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2683 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2684 {
2685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2686
2687 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2688
2689 ieee80211_stop_mesh(sdata);
2690 ieee80211_link_release_channel(&sdata->deflink);
2691 kfree(sdata->u.mesh.ie);
2692
2693 return 0;
2694 }
2695 #endif
2696
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2697 static int ieee80211_change_bss(struct wiphy *wiphy,
2698 struct net_device *dev,
2699 struct bss_parameters *params)
2700 {
2701 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2702 struct ieee80211_link_data *link;
2703 struct ieee80211_supported_band *sband;
2704 u64 changed = 0;
2705
2706 link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2707 if (IS_ERR(link))
2708 return PTR_ERR(link);
2709
2710 if (!sdata_dereference(link->u.ap.beacon, sdata))
2711 return -ENOENT;
2712
2713 sband = ieee80211_get_link_sband(link);
2714 if (!sband)
2715 return -EINVAL;
2716
2717 if (params->basic_rates) {
2718 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
2719 wiphy->bands[sband->band],
2720 params->basic_rates,
2721 params->basic_rates_len,
2722 &link->conf->basic_rates))
2723 return -EINVAL;
2724 changed |= BSS_CHANGED_BASIC_RATES;
2725 ieee80211_check_rate_mask(link);
2726 }
2727
2728 if (params->use_cts_prot >= 0) {
2729 link->conf->use_cts_prot = params->use_cts_prot;
2730 changed |= BSS_CHANGED_ERP_CTS_PROT;
2731 }
2732 if (params->use_short_preamble >= 0) {
2733 link->conf->use_short_preamble = params->use_short_preamble;
2734 changed |= BSS_CHANGED_ERP_PREAMBLE;
2735 }
2736
2737 if (!link->conf->use_short_slot &&
2738 (sband->band == NL80211_BAND_5GHZ ||
2739 sband->band == NL80211_BAND_6GHZ)) {
2740 link->conf->use_short_slot = true;
2741 changed |= BSS_CHANGED_ERP_SLOT;
2742 }
2743
2744 if (params->use_short_slot_time >= 0) {
2745 link->conf->use_short_slot = params->use_short_slot_time;
2746 changed |= BSS_CHANGED_ERP_SLOT;
2747 }
2748
2749 if (params->ap_isolate >= 0) {
2750 if (params->ap_isolate)
2751 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2752 else
2753 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2754 ieee80211_check_fast_rx_iface(sdata);
2755 }
2756
2757 if (params->ht_opmode >= 0) {
2758 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2759 changed |= BSS_CHANGED_HT;
2760 }
2761
2762 if (params->p2p_ctwindow >= 0) {
2763 link->conf->p2p_noa_attr.oppps_ctwindow &=
2764 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2765 link->conf->p2p_noa_attr.oppps_ctwindow |=
2766 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2767 changed |= BSS_CHANGED_P2P_PS;
2768 }
2769
2770 if (params->p2p_opp_ps > 0) {
2771 link->conf->p2p_noa_attr.oppps_ctwindow |=
2772 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2773 changed |= BSS_CHANGED_P2P_PS;
2774 } else if (params->p2p_opp_ps == 0) {
2775 link->conf->p2p_noa_attr.oppps_ctwindow &=
2776 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2777 changed |= BSS_CHANGED_P2P_PS;
2778 }
2779
2780 ieee80211_link_info_change_notify(sdata, link, changed);
2781
2782 return 0;
2783 }
2784
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2785 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2786 struct net_device *dev,
2787 struct ieee80211_txq_params *params)
2788 {
2789 struct ieee80211_local *local = wiphy_priv(wiphy);
2790 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2791 struct ieee80211_link_data *link =
2792 ieee80211_link_or_deflink(sdata, params->link_id, true);
2793 struct ieee80211_tx_queue_params p;
2794
2795 if (!local->ops->conf_tx)
2796 return -EOPNOTSUPP;
2797
2798 if (local->hw.queues < IEEE80211_NUM_ACS)
2799 return -EOPNOTSUPP;
2800
2801 if (IS_ERR(link))
2802 return PTR_ERR(link);
2803
2804 memset(&p, 0, sizeof(p));
2805 p.aifs = params->aifs;
2806 p.cw_max = params->cwmax;
2807 p.cw_min = params->cwmin;
2808 p.txop = params->txop;
2809
2810 /*
2811 * Setting tx queue params disables u-apsd because it's only
2812 * called in master mode.
2813 */
2814 p.uapsd = false;
2815
2816 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2817
2818 link->tx_conf[params->ac] = p;
2819 if (drv_conf_tx(local, link, params->ac, &p)) {
2820 wiphy_debug(local->hw.wiphy,
2821 "failed to set TX queue parameters for AC %d\n",
2822 params->ac);
2823 return -EINVAL;
2824 }
2825
2826 ieee80211_link_info_change_notify(sdata, link,
2827 BSS_CHANGED_QOS);
2828
2829 return 0;
2830 }
2831
2832 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2833 static int ieee80211_suspend(struct wiphy *wiphy,
2834 struct cfg80211_wowlan *wowlan)
2835 {
2836 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2837 }
2838
ieee80211_resume(struct wiphy * wiphy)2839 static int ieee80211_resume(struct wiphy *wiphy)
2840 {
2841 return __ieee80211_resume(wiphy_priv(wiphy));
2842 }
2843 #else
2844 #define ieee80211_suspend NULL
2845 #define ieee80211_resume NULL
2846 #endif
2847
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2848 static int ieee80211_scan(struct wiphy *wiphy,
2849 struct cfg80211_scan_request *req)
2850 {
2851 struct ieee80211_sub_if_data *sdata;
2852
2853 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2854
2855 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2856 case NL80211_IFTYPE_STATION:
2857 case NL80211_IFTYPE_ADHOC:
2858 case NL80211_IFTYPE_MESH_POINT:
2859 case NL80211_IFTYPE_P2P_CLIENT:
2860 case NL80211_IFTYPE_P2P_DEVICE:
2861 break;
2862 case NL80211_IFTYPE_P2P_GO:
2863 if (sdata->local->ops->hw_scan)
2864 break;
2865 /*
2866 * FIXME: implement NoA while scanning in software,
2867 * for now fall through to allow scanning only when
2868 * beaconing hasn't been configured yet
2869 */
2870 fallthrough;
2871 case NL80211_IFTYPE_AP:
2872 /*
2873 * If the scan has been forced (and the driver supports
2874 * forcing), don't care about being beaconing already.
2875 * This will create problems to the attached stations (e.g. all
2876 * the frames sent while scanning on other channel will be
2877 * lost)
2878 */
2879 if (sdata->deflink.u.ap.beacon &&
2880 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2881 !(req->flags & NL80211_SCAN_FLAG_AP)))
2882 return -EOPNOTSUPP;
2883 break;
2884 case NL80211_IFTYPE_NAN:
2885 default:
2886 return -EOPNOTSUPP;
2887 }
2888
2889 return ieee80211_request_scan(sdata, req);
2890 }
2891
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2892 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2893 {
2894 ieee80211_scan_cancel(wiphy_priv(wiphy));
2895 }
2896
2897 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2898 ieee80211_sched_scan_start(struct wiphy *wiphy,
2899 struct net_device *dev,
2900 struct cfg80211_sched_scan_request *req)
2901 {
2902 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2903
2904 if (!sdata->local->ops->sched_scan_start)
2905 return -EOPNOTSUPP;
2906
2907 return ieee80211_request_sched_scan_start(sdata, req);
2908 }
2909
2910 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2911 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2912 u64 reqid)
2913 {
2914 struct ieee80211_local *local = wiphy_priv(wiphy);
2915
2916 if (!local->ops->sched_scan_stop)
2917 return -EOPNOTSUPP;
2918
2919 return ieee80211_request_sched_scan_stop(local);
2920 }
2921
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2922 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2923 struct cfg80211_auth_request *req)
2924 {
2925 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2926 }
2927
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2928 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2929 struct cfg80211_assoc_request *req)
2930 {
2931 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2932 }
2933
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2934 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2935 struct cfg80211_deauth_request *req)
2936 {
2937 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2938 }
2939
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2940 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2941 struct cfg80211_disassoc_request *req)
2942 {
2943 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2944 }
2945
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2946 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2947 struct cfg80211_ibss_params *params)
2948 {
2949 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2950 }
2951
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2952 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2953 {
2954 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2955 }
2956
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2957 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2958 struct ocb_setup *setup)
2959 {
2960 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2961 }
2962
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2963 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2964 {
2965 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2966 }
2967
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2968 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2969 int rate[NUM_NL80211_BANDS])
2970 {
2971 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2972
2973 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2974 sizeof(int) * NUM_NL80211_BANDS);
2975
2976 if (ieee80211_sdata_running(sdata))
2977 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2978 BSS_CHANGED_MCAST_RATE);
2979
2980 return 0;
2981 }
2982
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2983 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2984 {
2985 struct ieee80211_local *local = wiphy_priv(wiphy);
2986 int err;
2987
2988 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2989 ieee80211_check_fast_xmit_all(local);
2990
2991 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2992
2993 if (err) {
2994 ieee80211_check_fast_xmit_all(local);
2995 return err;
2996 }
2997 }
2998
2999 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
3000 (changed & WIPHY_PARAM_DYN_ACK)) {
3001 s16 coverage_class;
3002
3003 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
3004 wiphy->coverage_class : -1;
3005 err = drv_set_coverage_class(local, coverage_class);
3006
3007 if (err)
3008 return err;
3009 }
3010
3011 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
3012 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
3013
3014 if (err)
3015 return err;
3016 }
3017
3018 if (changed & WIPHY_PARAM_RETRY_SHORT) {
3019 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
3020 return -EINVAL;
3021 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
3022 }
3023 if (changed & WIPHY_PARAM_RETRY_LONG) {
3024 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
3025 return -EINVAL;
3026 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
3027 }
3028 if (changed &
3029 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
3030 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
3031
3032 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
3033 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
3034 WIPHY_PARAM_TXQ_QUANTUM))
3035 ieee80211_txq_set_params(local);
3036
3037 return 0;
3038 }
3039
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)3040 static int ieee80211_set_tx_power(struct wiphy *wiphy,
3041 struct wireless_dev *wdev,
3042 enum nl80211_tx_power_setting type, int mbm)
3043 {
3044 struct ieee80211_local *local = wiphy_priv(wiphy);
3045 struct ieee80211_sub_if_data *sdata;
3046 enum nl80211_tx_power_setting txp_type = type;
3047 bool update_txp_type = false;
3048 bool has_monitor = false;
3049
3050 lockdep_assert_wiphy(local->hw.wiphy);
3051
3052 if (wdev) {
3053 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3054
3055 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3056 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
3057 return -EOPNOTSUPP;
3058
3059 sdata = wiphy_dereference(local->hw.wiphy,
3060 local->monitor_sdata);
3061 if (!sdata)
3062 return -EOPNOTSUPP;
3063 }
3064
3065 switch (type) {
3066 case NL80211_TX_POWER_AUTOMATIC:
3067 sdata->deflink.user_power_level =
3068 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 sdata->deflink.user_power_level = MBM_TO_DBM(mbm);
3076 break;
3077 }
3078
3079 if (txp_type != sdata->vif.bss_conf.txpower_type) {
3080 update_txp_type = true;
3081 sdata->vif.bss_conf.txpower_type = txp_type;
3082 }
3083
3084 ieee80211_recalc_txpower(sdata, update_txp_type);
3085
3086 return 0;
3087 }
3088
3089 switch (type) {
3090 case NL80211_TX_POWER_AUTOMATIC:
3091 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
3092 txp_type = NL80211_TX_POWER_LIMITED;
3093 break;
3094 case NL80211_TX_POWER_LIMITED:
3095 case NL80211_TX_POWER_FIXED:
3096 if (mbm < 0 || (mbm % 100))
3097 return -EOPNOTSUPP;
3098 local->user_power_level = MBM_TO_DBM(mbm);
3099 break;
3100 }
3101
3102 list_for_each_entry(sdata, &local->interfaces, list) {
3103 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3104 has_monitor = true;
3105 continue;
3106 }
3107 sdata->deflink.user_power_level = local->user_power_level;
3108 if (txp_type != sdata->vif.bss_conf.txpower_type)
3109 update_txp_type = true;
3110 sdata->vif.bss_conf.txpower_type = txp_type;
3111 }
3112 list_for_each_entry(sdata, &local->interfaces, list) {
3113 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
3114 continue;
3115 ieee80211_recalc_txpower(sdata, update_txp_type);
3116 }
3117
3118 if (has_monitor) {
3119 sdata = wiphy_dereference(local->hw.wiphy,
3120 local->monitor_sdata);
3121 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
3122 sdata->deflink.user_power_level = local->user_power_level;
3123 if (txp_type != sdata->vif.bss_conf.txpower_type)
3124 update_txp_type = true;
3125 sdata->vif.bss_conf.txpower_type = txp_type;
3126
3127 ieee80211_recalc_txpower(sdata, update_txp_type);
3128 }
3129 }
3130
3131 return 0;
3132 }
3133
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)3134 static int ieee80211_get_tx_power(struct wiphy *wiphy,
3135 struct wireless_dev *wdev,
3136 int *dbm)
3137 {
3138 struct ieee80211_local *local = wiphy_priv(wiphy);
3139 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3140
3141 if (local->ops->get_txpower)
3142 return drv_get_txpower(local, sdata, dbm);
3143
3144 if (local->emulate_chanctx)
3145 *dbm = local->hw.conf.power_level;
3146 else
3147 *dbm = sdata->vif.bss_conf.txpower;
3148
3149 /* INT_MIN indicates no power level was set yet */
3150 if (*dbm == INT_MIN)
3151 return -EINVAL;
3152
3153 return 0;
3154 }
3155
ieee80211_rfkill_poll(struct wiphy * wiphy)3156 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3157 {
3158 struct ieee80211_local *local = wiphy_priv(wiphy);
3159
3160 drv_rfkill_poll(local);
3161 }
3162
3163 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)3164 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3165 struct wireless_dev *wdev,
3166 void *data, int len)
3167 {
3168 struct ieee80211_local *local = wiphy_priv(wiphy);
3169 struct ieee80211_vif *vif = NULL;
3170
3171 if (!local->ops->testmode_cmd)
3172 return -EOPNOTSUPP;
3173
3174 if (wdev) {
3175 struct ieee80211_sub_if_data *sdata;
3176
3177 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3178 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3179 vif = &sdata->vif;
3180 }
3181
3182 return local->ops->testmode_cmd(&local->hw, vif, data, len);
3183 }
3184
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)3185 static int ieee80211_testmode_dump(struct wiphy *wiphy,
3186 struct sk_buff *skb,
3187 struct netlink_callback *cb,
3188 void *data, int len)
3189 {
3190 struct ieee80211_local *local = wiphy_priv(wiphy);
3191
3192 if (!local->ops->testmode_dump)
3193 return -EOPNOTSUPP;
3194
3195 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3196 }
3197 #endif
3198
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,enum ieee80211_smps_mode smps_mode)3199 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3200 struct ieee80211_link_data *link,
3201 enum ieee80211_smps_mode smps_mode)
3202 {
3203 const u8 *ap;
3204 enum ieee80211_smps_mode old_req;
3205 int err;
3206 struct sta_info *sta;
3207 bool tdls_peer_found = false;
3208
3209 lockdep_assert_wiphy(sdata->local->hw.wiphy);
3210
3211 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3212 return -EINVAL;
3213
3214 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
3215 return 0;
3216
3217 old_req = link->u.mgd.req_smps;
3218 link->u.mgd.req_smps = smps_mode;
3219
3220 /* The driver indicated that EML is enabled for the interface, which
3221 * implies that SMPS flows towards the AP should be stopped.
3222 */
3223 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
3224 return 0;
3225
3226 if (old_req == smps_mode &&
3227 smps_mode != IEEE80211_SMPS_AUTOMATIC)
3228 return 0;
3229
3230 /*
3231 * If not associated, or current association is not an HT
3232 * association, there's no need to do anything, just store
3233 * the new value until we associate.
3234 */
3235 if (!sdata->u.mgd.associated ||
3236 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT)
3237 return 0;
3238
3239 ap = sdata->vif.cfg.ap_addr;
3240
3241 rcu_read_lock();
3242 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3243 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3244 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3245 continue;
3246
3247 tdls_peer_found = true;
3248 break;
3249 }
3250 rcu_read_unlock();
3251
3252 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3253 if (tdls_peer_found || !sdata->u.mgd.powersave)
3254 smps_mode = IEEE80211_SMPS_OFF;
3255 else
3256 smps_mode = IEEE80211_SMPS_DYNAMIC;
3257 }
3258
3259 /* send SM PS frame to AP */
3260 err = ieee80211_send_smps_action(sdata, smps_mode,
3261 ap, ap,
3262 ieee80211_vif_is_mld(&sdata->vif) ?
3263 link->link_id : -1);
3264 if (err)
3265 link->u.mgd.req_smps = old_req;
3266 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3267 ieee80211_teardown_tdls_peers(link);
3268
3269 return err;
3270 }
3271
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)3272 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3273 bool enabled, int timeout)
3274 {
3275 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3276 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3277 unsigned int link_id;
3278
3279 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3280 return -EOPNOTSUPP;
3281
3282 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3283 return -EOPNOTSUPP;
3284
3285 if (enabled == sdata->u.mgd.powersave &&
3286 timeout == local->dynamic_ps_forced_timeout)
3287 return 0;
3288
3289 sdata->u.mgd.powersave = enabled;
3290 local->dynamic_ps_forced_timeout = timeout;
3291
3292 /* no change, but if automatic follow powersave */
3293 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3294 struct ieee80211_link_data *link;
3295
3296 link = sdata_dereference(sdata->link[link_id], sdata);
3297
3298 if (!link)
3299 continue;
3300 __ieee80211_request_smps_mgd(sdata, link,
3301 link->u.mgd.req_smps);
3302 }
3303
3304 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3305 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3306
3307 ieee80211_recalc_ps(local);
3308 ieee80211_recalc_ps_vif(sdata);
3309 ieee80211_check_fast_rx_iface(sdata);
3310
3311 return 0;
3312 }
3313
ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,s32 rssi_thold,u32 rssi_hyst,s32 rssi_low,s32 rssi_high)3314 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata,
3315 struct ieee80211_link_data *link,
3316 s32 rssi_thold, u32 rssi_hyst,
3317 s32 rssi_low, s32 rssi_high)
3318 {
3319 struct ieee80211_bss_conf *conf;
3320
3321 if (!link || !link->conf)
3322 return;
3323
3324 conf = link->conf;
3325
3326 if (rssi_thold && rssi_hyst &&
3327 rssi_thold == conf->cqm_rssi_thold &&
3328 rssi_hyst == conf->cqm_rssi_hyst)
3329 return;
3330
3331 conf->cqm_rssi_thold = rssi_thold;
3332 conf->cqm_rssi_hyst = rssi_hyst;
3333 conf->cqm_rssi_low = rssi_low;
3334 conf->cqm_rssi_high = rssi_high;
3335 link->u.mgd.last_cqm_event_signal = 0;
3336
3337 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
3338 return;
3339
3340 if (sdata->u.mgd.associated &&
3341 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3342 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM);
3343 }
3344
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)3345 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3346 struct net_device *dev,
3347 s32 rssi_thold, u32 rssi_hyst)
3348 {
3349 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3350 struct ieee80211_vif *vif = &sdata->vif;
3351 int link_id;
3352
3353 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3354 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
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, rssi_hyst,
3363 0, 0);
3364 }
3365
3366 return 0;
3367 }
3368
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)3369 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3370 struct net_device *dev,
3371 s32 rssi_low, s32 rssi_high)
3372 {
3373 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3374 struct ieee80211_vif *vif = &sdata->vif;
3375 int link_id;
3376
3377 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)
3378 return -EOPNOTSUPP;
3379
3380 /* For MLD, handle CQM change on all the active links */
3381 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3382 struct ieee80211_link_data *link =
3383 sdata_dereference(sdata->link[link_id], sdata);
3384
3385 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0,
3386 rssi_low, rssi_high);
3387 }
3388
3389 return 0;
3390 }
3391
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * addr,const struct cfg80211_bitrate_mask * mask)3392 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3393 struct net_device *dev,
3394 unsigned int link_id,
3395 const u8 *addr,
3396 const struct cfg80211_bitrate_mask *mask)
3397 {
3398 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3399 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3400 int i, ret;
3401
3402 if (!ieee80211_sdata_running(sdata))
3403 return -ENETDOWN;
3404
3405 /*
3406 * If active validate the setting and reject it if it doesn't leave
3407 * at least one basic rate usable, since we really have to be able
3408 * to send something, and if we're an AP we have to be able to do
3409 * so at a basic rate so that all clients can receive it.
3410 */
3411 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3412 sdata->vif.bss_conf.chanreq.oper.chan) {
3413 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3414 enum nl80211_band band;
3415
3416 band = sdata->vif.bss_conf.chanreq.oper.chan->band;
3417
3418 if (!(mask->control[band].legacy & basic_rates))
3419 return -EINVAL;
3420 }
3421
3422 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3423 ret = drv_set_bitrate_mask(local, sdata, mask);
3424 if (ret)
3425 return ret;
3426 }
3427
3428 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3429 struct ieee80211_supported_band *sband = wiphy->bands[i];
3430 int j;
3431
3432 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3433 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3434 sizeof(mask->control[i].ht_mcs));
3435 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3436 mask->control[i].vht_mcs,
3437 sizeof(mask->control[i].vht_mcs));
3438
3439 sdata->rc_has_mcs_mask[i] = false;
3440 sdata->rc_has_vht_mcs_mask[i] = false;
3441 if (!sband)
3442 continue;
3443
3444 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3445 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3446 sdata->rc_has_mcs_mask[i] = true;
3447 break;
3448 }
3449 }
3450
3451 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3452 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3453 sdata->rc_has_vht_mcs_mask[i] = true;
3454 break;
3455 }
3456 }
3457 }
3458
3459 return 0;
3460 }
3461
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms,int link_id)3462 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3463 struct net_device *dev,
3464 struct cfg80211_chan_def *chandef,
3465 u32 cac_time_ms, int link_id)
3466 {
3467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3468 struct ieee80211_chan_req chanreq = { .oper = *chandef };
3469 struct ieee80211_local *local = sdata->local;
3470 struct ieee80211_link_data *link_data;
3471 int err;
3472
3473 lockdep_assert_wiphy(local->hw.wiphy);
3474
3475 if (!list_empty(&local->roc_list) || local->scanning)
3476 return -EBUSY;
3477
3478 link_data = sdata_dereference(sdata->link[link_id], sdata);
3479 if (!link_data)
3480 return -ENOLINK;
3481
3482 /* whatever, but channel contexts should not complain about that one */
3483 link_data->smps_mode = IEEE80211_SMPS_OFF;
3484 link_data->needed_rx_chains = local->rx_chains;
3485
3486 err = ieee80211_link_use_channel(link_data, &chanreq,
3487 IEEE80211_CHANCTX_SHARED);
3488 if (err)
3489 return err;
3490
3491 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work,
3492 msecs_to_jiffies(cac_time_ms));
3493
3494 return 0;
3495 }
3496
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)3497 static void ieee80211_end_cac(struct wiphy *wiphy,
3498 struct net_device *dev, unsigned int link_id)
3499 {
3500 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3501 struct ieee80211_local *local = sdata->local;
3502 struct ieee80211_link_data *link_data;
3503
3504 lockdep_assert_wiphy(local->hw.wiphy);
3505
3506 list_for_each_entry(sdata, &local->interfaces, list) {
3507 link_data = sdata_dereference(sdata->link[link_id], sdata);
3508 if (!link_data)
3509 continue;
3510
3511 wiphy_delayed_work_cancel(wiphy,
3512 &link_data->dfs_cac_timer_work);
3513
3514 if (sdata->wdev.links[link_id].cac_started) {
3515 ieee80211_link_release_channel(link_data);
3516 sdata->wdev.links[link_id].cac_started = false;
3517 }
3518 }
3519 }
3520
3521 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3522 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3523 {
3524 struct cfg80211_beacon_data *new_beacon;
3525 u8 *pos;
3526 int len;
3527
3528 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3529 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3530 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3531
3532 if (beacon->mbssid_ies)
3533 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
3534 beacon->rnr_ies,
3535 beacon->mbssid_ies->cnt);
3536
3537 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3538 if (!new_beacon)
3539 return NULL;
3540
3541 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3542 new_beacon->mbssid_ies =
3543 kzalloc(struct_size(new_beacon->mbssid_ies,
3544 elem, beacon->mbssid_ies->cnt),
3545 GFP_KERNEL);
3546 if (!new_beacon->mbssid_ies) {
3547 kfree(new_beacon);
3548 return NULL;
3549 }
3550
3551 if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
3552 new_beacon->rnr_ies =
3553 kzalloc(struct_size(new_beacon->rnr_ies,
3554 elem, beacon->rnr_ies->cnt),
3555 GFP_KERNEL);
3556 if (!new_beacon->rnr_ies) {
3557 kfree(new_beacon->mbssid_ies);
3558 kfree(new_beacon);
3559 return NULL;
3560 }
3561 }
3562 }
3563
3564 pos = (u8 *)(new_beacon + 1);
3565 if (beacon->head_len) {
3566 new_beacon->head_len = beacon->head_len;
3567 new_beacon->head = pos;
3568 memcpy(pos, beacon->head, beacon->head_len);
3569 pos += beacon->head_len;
3570 }
3571 if (beacon->tail_len) {
3572 new_beacon->tail_len = beacon->tail_len;
3573 new_beacon->tail = pos;
3574 memcpy(pos, beacon->tail, beacon->tail_len);
3575 pos += beacon->tail_len;
3576 }
3577 if (beacon->beacon_ies_len) {
3578 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3579 new_beacon->beacon_ies = pos;
3580 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3581 pos += beacon->beacon_ies_len;
3582 }
3583 if (beacon->proberesp_ies_len) {
3584 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3585 new_beacon->proberesp_ies = pos;
3586 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3587 pos += beacon->proberesp_ies_len;
3588 }
3589 if (beacon->assocresp_ies_len) {
3590 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3591 new_beacon->assocresp_ies = pos;
3592 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3593 pos += beacon->assocresp_ies_len;
3594 }
3595 if (beacon->probe_resp_len) {
3596 new_beacon->probe_resp_len = beacon->probe_resp_len;
3597 new_beacon->probe_resp = pos;
3598 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3599 pos += beacon->probe_resp_len;
3600 }
3601 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3602 pos += ieee80211_copy_mbssid_beacon(pos,
3603 new_beacon->mbssid_ies,
3604 beacon->mbssid_ies);
3605 if (beacon->rnr_ies && beacon->rnr_ies->cnt)
3606 pos += ieee80211_copy_rnr_beacon(pos,
3607 new_beacon->rnr_ies,
3608 beacon->rnr_ies);
3609 }
3610
3611 /* might copy -1, meaning no changes requested */
3612 new_beacon->ftm_responder = beacon->ftm_responder;
3613 if (beacon->lci) {
3614 new_beacon->lci_len = beacon->lci_len;
3615 new_beacon->lci = pos;
3616 memcpy(pos, beacon->lci, beacon->lci_len);
3617 pos += beacon->lci_len;
3618 }
3619 if (beacon->civicloc) {
3620 new_beacon->civicloc_len = beacon->civicloc_len;
3621 new_beacon->civicloc = pos;
3622 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3623 pos += beacon->civicloc_len;
3624 }
3625
3626 return new_beacon;
3627 }
3628
ieee80211_csa_finish(struct ieee80211_vif * vif,unsigned int link_id)3629 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id)
3630 {
3631 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3632 struct ieee80211_local *local = sdata->local;
3633 struct ieee80211_link_data *link_data;
3634
3635 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
3636 return;
3637
3638 rcu_read_lock();
3639
3640 link_data = rcu_dereference(sdata->link[link_id]);
3641 if (WARN_ON(!link_data)) {
3642 rcu_read_unlock();
3643 return;
3644 }
3645
3646 /* TODO: MBSSID with MLO changes */
3647 if (vif->mbssid_tx_vif == vif) {
3648 /* Trigger ieee80211_csa_finish() on the non-transmitting
3649 * interfaces when channel switch is received on
3650 * transmitting interface
3651 */
3652 struct ieee80211_sub_if_data *iter;
3653
3654 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3655 if (!ieee80211_sdata_running(iter))
3656 continue;
3657
3658 if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3659 continue;
3660
3661 wiphy_work_queue(iter->local->hw.wiphy,
3662 &iter->deflink.csa.finalize_work);
3663 }
3664 }
3665 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work);
3666
3667 rcu_read_unlock();
3668 }
3669 EXPORT_SYMBOL(ieee80211_csa_finish);
3670
ieee80211_channel_switch_disconnect(struct ieee80211_vif * vif,bool block_tx)3671 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3672 {
3673 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3674 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3675 struct ieee80211_local *local = sdata->local;
3676
3677 sdata->csa_blocked_queues = block_tx;
3678 sdata_info(sdata, "channel switch failed, disconnecting\n");
3679 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work);
3680 }
3681 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3682
ieee80211_set_after_csa_beacon(struct ieee80211_link_data * link_data,u64 * changed)3683 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data,
3684 u64 *changed)
3685 {
3686 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3687 int err;
3688
3689 switch (sdata->vif.type) {
3690 case NL80211_IFTYPE_AP:
3691 if (!link_data->u.ap.next_beacon)
3692 return -EINVAL;
3693
3694 err = ieee80211_assign_beacon(sdata, link_data,
3695 link_data->u.ap.next_beacon,
3696 NULL, NULL, changed);
3697 ieee80211_free_next_beacon(link_data);
3698
3699 if (err < 0)
3700 return err;
3701 break;
3702 case NL80211_IFTYPE_ADHOC:
3703 err = ieee80211_ibss_finish_csa(sdata, changed);
3704 if (err < 0)
3705 return err;
3706 break;
3707 #ifdef CONFIG_MAC80211_MESH
3708 case NL80211_IFTYPE_MESH_POINT:
3709 err = ieee80211_mesh_finish_csa(sdata, changed);
3710 if (err < 0)
3711 return err;
3712 break;
3713 #endif
3714 default:
3715 WARN_ON(1);
3716 return -EINVAL;
3717 }
3718
3719 return 0;
3720 }
3721
__ieee80211_csa_finalize(struct ieee80211_link_data * link_data)3722 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3723 {
3724 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3725 struct ieee80211_local *local = sdata->local;
3726 struct ieee80211_bss_conf *link_conf = link_data->conf;
3727 u64 changed = 0;
3728 int err;
3729
3730 lockdep_assert_wiphy(local->hw.wiphy);
3731
3732 /*
3733 * using reservation isn't immediate as it may be deferred until later
3734 * with multi-vif. once reservation is complete it will re-schedule the
3735 * work with no reserved_chanctx so verify chandef to check if it
3736 * completed successfully
3737 */
3738
3739 if (link_data->reserved_chanctx) {
3740 /*
3741 * with multi-vif csa driver may call ieee80211_csa_finish()
3742 * many times while waiting for other interfaces to use their
3743 * reservations
3744 */
3745 if (link_data->reserved_ready)
3746 return 0;
3747
3748 return ieee80211_link_use_reserved_context(link_data);
3749 }
3750
3751 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper,
3752 &link_data->csa.chanreq.oper))
3753 return -EINVAL;
3754
3755 link_conf->csa_active = false;
3756
3757 err = ieee80211_set_after_csa_beacon(link_data, &changed);
3758 if (err)
3759 return err;
3760
3761 ieee80211_link_info_change_notify(sdata, link_data, changed);
3762
3763 ieee80211_vif_unblock_queues_csa(sdata);
3764
3765 err = drv_post_channel_switch(link_data);
3766 if (err)
3767 return err;
3768
3769 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper,
3770 link_data->link_id);
3771
3772 return 0;
3773 }
3774
ieee80211_csa_finalize(struct ieee80211_link_data * link_data)3775 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3776 {
3777 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3778
3779 if (__ieee80211_csa_finalize(link_data)) {
3780 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n",
3781 link_data->link_id);
3782 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3783 GFP_KERNEL);
3784 }
3785 }
3786
ieee80211_csa_finalize_work(struct wiphy * wiphy,struct wiphy_work * work)3787 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work)
3788 {
3789 struct ieee80211_link_data *link =
3790 container_of(work, struct ieee80211_link_data, csa.finalize_work);
3791 struct ieee80211_sub_if_data *sdata = link->sdata;
3792 struct ieee80211_local *local = sdata->local;
3793
3794 lockdep_assert_wiphy(local->hw.wiphy);
3795
3796 /* AP might have been stopped while waiting for the lock. */
3797 if (!link->conf->csa_active)
3798 return;
3799
3800 if (!ieee80211_sdata_running(sdata))
3801 return;
3802
3803 ieee80211_csa_finalize(link);
3804 }
3805
ieee80211_set_csa_beacon(struct ieee80211_link_data * link_data,struct cfg80211_csa_settings * params,u64 * changed)3806 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data,
3807 struct cfg80211_csa_settings *params,
3808 u64 *changed)
3809 {
3810 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3811 struct ieee80211_csa_settings csa = {};
3812 int err;
3813
3814 switch (sdata->vif.type) {
3815 case NL80211_IFTYPE_AP:
3816 link_data->u.ap.next_beacon =
3817 cfg80211_beacon_dup(¶ms->beacon_after);
3818 if (!link_data->u.ap.next_beacon)
3819 return -ENOMEM;
3820
3821 /*
3822 * With a count of 0, we don't have to wait for any
3823 * TBTT before switching, so complete the CSA
3824 * immediately. In theory, with a count == 1 we
3825 * should delay the switch until just before the next
3826 * TBTT, but that would complicate things so we switch
3827 * immediately too. If we would delay the switch
3828 * until the next TBTT, we would have to set the probe
3829 * response here.
3830 *
3831 * TODO: A channel switch with count <= 1 without
3832 * sending a CSA action frame is kind of useless,
3833 * because the clients won't know we're changing
3834 * channels. The action frame must be implemented
3835 * either here or in the userspace.
3836 */
3837 if (params->count <= 1)
3838 break;
3839
3840 if ((params->n_counter_offsets_beacon >
3841 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3842 (params->n_counter_offsets_presp >
3843 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3844 ieee80211_free_next_beacon(link_data);
3845 return -EINVAL;
3846 }
3847
3848 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3849 csa.counter_offsets_presp = params->counter_offsets_presp;
3850 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3851 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3852 csa.count = params->count;
3853
3854 err = ieee80211_assign_beacon(sdata, link_data,
3855 ¶ms->beacon_csa, &csa,
3856 NULL, changed);
3857 if (err < 0) {
3858 ieee80211_free_next_beacon(link_data);
3859 return err;
3860 }
3861
3862 break;
3863 case NL80211_IFTYPE_ADHOC:
3864 if (!sdata->vif.cfg.ibss_joined)
3865 return -EINVAL;
3866
3867 if (params->chandef.width != sdata->u.ibss.chandef.width)
3868 return -EINVAL;
3869
3870 switch (params->chandef.width) {
3871 case NL80211_CHAN_WIDTH_40:
3872 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3873 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3874 return -EINVAL;
3875 break;
3876 case NL80211_CHAN_WIDTH_5:
3877 case NL80211_CHAN_WIDTH_10:
3878 case NL80211_CHAN_WIDTH_20_NOHT:
3879 case NL80211_CHAN_WIDTH_20:
3880 break;
3881 default:
3882 return -EINVAL;
3883 }
3884
3885 /* changes into another band are not supported */
3886 if (sdata->u.ibss.chandef.chan->band !=
3887 params->chandef.chan->band)
3888 return -EINVAL;
3889
3890 /* see comments in the NL80211_IFTYPE_AP block */
3891 if (params->count > 1) {
3892 err = ieee80211_ibss_csa_beacon(sdata, params, changed);
3893 if (err < 0)
3894 return err;
3895 }
3896
3897 ieee80211_send_action_csa(sdata, params);
3898
3899 break;
3900 #ifdef CONFIG_MAC80211_MESH
3901 case NL80211_IFTYPE_MESH_POINT: {
3902 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3903
3904 /* changes into another band are not supported */
3905 if (sdata->vif.bss_conf.chanreq.oper.chan->band !=
3906 params->chandef.chan->band)
3907 return -EINVAL;
3908
3909 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3910 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3911 if (!ifmsh->pre_value)
3912 ifmsh->pre_value = 1;
3913 else
3914 ifmsh->pre_value++;
3915 }
3916
3917 /* see comments in the NL80211_IFTYPE_AP block */
3918 if (params->count > 1) {
3919 err = ieee80211_mesh_csa_beacon(sdata, params, changed);
3920 if (err < 0) {
3921 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3922 return err;
3923 }
3924 }
3925
3926 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3927 ieee80211_send_action_csa(sdata, params);
3928
3929 break;
3930 }
3931 #endif
3932 default:
3933 return -EOPNOTSUPP;
3934 }
3935
3936 return 0;
3937 }
3938
ieee80211_color_change_abort(struct ieee80211_link_data * link)3939 static void ieee80211_color_change_abort(struct ieee80211_link_data *link)
3940 {
3941 link->conf->color_change_active = false;
3942
3943 ieee80211_free_next_beacon(link);
3944
3945 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id);
3946 }
3947
3948 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3949 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3950 struct cfg80211_csa_settings *params)
3951 {
3952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3953 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
3954 struct ieee80211_local *local = sdata->local;
3955 struct ieee80211_channel_switch ch_switch = {
3956 .link_id = params->link_id,
3957 };
3958 struct ieee80211_chanctx_conf *conf;
3959 struct ieee80211_chanctx *chanctx;
3960 struct ieee80211_bss_conf *link_conf;
3961 struct ieee80211_link_data *link_data;
3962 u64 changed = 0;
3963 u8 link_id = params->link_id;
3964 int err;
3965
3966 lockdep_assert_wiphy(local->hw.wiphy);
3967
3968 if (!list_empty(&local->roc_list) || local->scanning)
3969 return -EBUSY;
3970
3971 if (sdata->wdev.links[link_id].cac_started)
3972 return -EBUSY;
3973
3974 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
3975 return -EINVAL;
3976
3977 link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
3978 if (!link_data)
3979 return -ENOLINK;
3980
3981 link_conf = link_data->conf;
3982
3983 if (chanreq.oper.punctured && !link_conf->eht_support)
3984 return -EINVAL;
3985
3986 /* don't allow another channel switch if one is already active. */
3987 if (link_conf->csa_active)
3988 return -EBUSY;
3989
3990 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf);
3991 if (!conf) {
3992 err = -EBUSY;
3993 goto out;
3994 }
3995
3996 if (params->chandef.chan->freq_offset) {
3997 /* this may work, but is untested */
3998 err = -EOPNOTSUPP;
3999 goto out;
4000 }
4001
4002 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
4003
4004 ch_switch.timestamp = 0;
4005 ch_switch.device_timestamp = 0;
4006 ch_switch.block_tx = params->block_tx;
4007 ch_switch.chandef = chanreq.oper;
4008 ch_switch.count = params->count;
4009
4010 err = drv_pre_channel_switch(sdata, &ch_switch);
4011 if (err)
4012 goto out;
4013
4014 err = ieee80211_link_reserve_chanctx(link_data, &chanreq,
4015 chanctx->mode,
4016 params->radar_required);
4017 if (err)
4018 goto out;
4019
4020 /* if reservation is invalid then this will fail */
4021 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1);
4022 if (err) {
4023 ieee80211_link_unreserve_chanctx(link_data);
4024 goto out;
4025 }
4026
4027 /* if there is a color change in progress, abort it */
4028 if (link_conf->color_change_active)
4029 ieee80211_color_change_abort(link_data);
4030
4031 err = ieee80211_set_csa_beacon(link_data, params, &changed);
4032 if (err) {
4033 ieee80211_link_unreserve_chanctx(link_data);
4034 goto out;
4035 }
4036
4037 link_data->csa.chanreq = chanreq;
4038 link_conf->csa_active = true;
4039
4040 if (params->block_tx)
4041 ieee80211_vif_block_queues_csa(sdata);
4042
4043 cfg80211_ch_switch_started_notify(sdata->dev,
4044 &link_data->csa.chanreq.oper, link_id,
4045 params->count, params->block_tx);
4046
4047 if (changed) {
4048 ieee80211_link_info_change_notify(sdata, link_data, changed);
4049 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper);
4050 } else {
4051 /* if the beacon didn't change, we can finalize immediately */
4052 ieee80211_csa_finalize(link_data);
4053 }
4054
4055 out:
4056 return err;
4057 }
4058
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)4059 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4060 struct cfg80211_csa_settings *params)
4061 {
4062 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4063 struct ieee80211_local *local = sdata->local;
4064
4065 lockdep_assert_wiphy(local->hw.wiphy);
4066
4067 return __ieee80211_channel_switch(wiphy, dev, params);
4068 }
4069
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)4070 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
4071 {
4072 lockdep_assert_wiphy(local->hw.wiphy);
4073
4074 local->roc_cookie_counter++;
4075
4076 /* wow, you wrapped 64 bits ... more likely a bug */
4077 if (WARN_ON(local->roc_cookie_counter == 0))
4078 local->roc_cookie_counter++;
4079
4080 return local->roc_cookie_counter;
4081 }
4082
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)4083 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
4084 u64 *cookie, gfp_t gfp)
4085 {
4086 unsigned long spin_flags;
4087 struct sk_buff *ack_skb;
4088 int id;
4089
4090 ack_skb = skb_copy(skb, gfp);
4091 if (!ack_skb)
4092 return -ENOMEM;
4093
4094 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
4095 id = idr_alloc(&local->ack_status_frames, ack_skb,
4096 1, 0x2000, GFP_ATOMIC);
4097 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
4098
4099 if (id < 0) {
4100 kfree_skb(ack_skb);
4101 return -ENOMEM;
4102 }
4103
4104 IEEE80211_SKB_CB(skb)->status_data_idr = 1;
4105 IEEE80211_SKB_CB(skb)->status_data = id;
4106
4107 *cookie = ieee80211_mgmt_tx_cookie(local);
4108 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
4109
4110 return 0;
4111 }
4112
4113 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)4114 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
4115 struct wireless_dev *wdev,
4116 struct mgmt_frame_regs *upd)
4117 {
4118 struct ieee80211_local *local = wiphy_priv(wiphy);
4119 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4120 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
4121 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
4122 bool global_change, intf_change;
4123
4124 global_change =
4125 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
4126 (local->rx_mcast_action_reg !=
4127 !!(upd->global_mcast_stypes & action_mask));
4128 local->probe_req_reg = upd->global_stypes & preq_mask;
4129 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
4130
4131 intf_change = (sdata->vif.probe_req_reg !=
4132 !!(upd->interface_stypes & preq_mask)) ||
4133 (sdata->vif.rx_mcast_action_reg !=
4134 !!(upd->interface_mcast_stypes & action_mask));
4135 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
4136 sdata->vif.rx_mcast_action_reg =
4137 upd->interface_mcast_stypes & action_mask;
4138
4139 if (!local->open_count)
4140 return;
4141
4142 if (intf_change && ieee80211_sdata_running(sdata))
4143 drv_config_iface_filter(local, sdata,
4144 sdata->vif.probe_req_reg ?
4145 FIF_PROBE_REQ : 0,
4146 FIF_PROBE_REQ);
4147
4148 if (global_change)
4149 ieee80211_configure_filter(local);
4150 }
4151
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)4152 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
4153 {
4154 struct ieee80211_local *local = wiphy_priv(wiphy);
4155 int ret;
4156
4157 if (local->started)
4158 return -EOPNOTSUPP;
4159
4160 ret = drv_set_antenna(local, tx_ant, rx_ant);
4161 if (ret)
4162 return ret;
4163
4164 local->rx_chains = hweight8(rx_ant);
4165 return 0;
4166 }
4167
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)4168 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4169 {
4170 struct ieee80211_local *local = wiphy_priv(wiphy);
4171
4172 return drv_get_antenna(local, tx_ant, rx_ant);
4173 }
4174
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)4175 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4176 struct net_device *dev,
4177 struct cfg80211_gtk_rekey_data *data)
4178 {
4179 struct ieee80211_local *local = wiphy_priv(wiphy);
4180 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4181
4182 if (!local->ops->set_rekey_data)
4183 return -EOPNOTSUPP;
4184
4185 drv_set_rekey_data(local, sdata, data);
4186
4187 return 0;
4188 }
4189
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)4190 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4191 const u8 *peer, u64 *cookie)
4192 {
4193 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4194 struct ieee80211_local *local = sdata->local;
4195 struct ieee80211_qos_hdr *nullfunc;
4196 struct sk_buff *skb;
4197 int size = sizeof(*nullfunc);
4198 __le16 fc;
4199 bool qos;
4200 struct ieee80211_tx_info *info;
4201 struct sta_info *sta;
4202 struct ieee80211_chanctx_conf *chanctx_conf;
4203 enum nl80211_band band;
4204 int ret;
4205
4206 /* the lock is needed to assign the cookie later */
4207 lockdep_assert_wiphy(local->hw.wiphy);
4208
4209 rcu_read_lock();
4210 sta = sta_info_get_bss(sdata, peer);
4211 if (!sta) {
4212 ret = -ENOLINK;
4213 goto unlock;
4214 }
4215
4216 qos = sta->sta.wme;
4217
4218 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4219 if (WARN_ON(!chanctx_conf)) {
4220 ret = -EINVAL;
4221 goto unlock;
4222 }
4223 band = chanctx_conf->def.chan->band;
4224
4225 if (qos) {
4226 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4227 IEEE80211_STYPE_QOS_NULLFUNC |
4228 IEEE80211_FCTL_FROMDS);
4229 } else {
4230 size -= 2;
4231 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4232 IEEE80211_STYPE_NULLFUNC |
4233 IEEE80211_FCTL_FROMDS);
4234 }
4235
4236 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4237 if (!skb) {
4238 ret = -ENOMEM;
4239 goto unlock;
4240 }
4241
4242 skb->dev = dev;
4243
4244 skb_reserve(skb, local->hw.extra_tx_headroom);
4245
4246 nullfunc = skb_put(skb, size);
4247 nullfunc->frame_control = fc;
4248 nullfunc->duration_id = 0;
4249 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4250 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4251 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4252 nullfunc->seq_ctrl = 0;
4253
4254 info = IEEE80211_SKB_CB(skb);
4255
4256 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4257 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4258 info->band = band;
4259
4260 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4261 skb->priority = 7;
4262 if (qos)
4263 nullfunc->qos_ctrl = cpu_to_le16(7);
4264
4265 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4266 if (ret) {
4267 kfree_skb(skb);
4268 goto unlock;
4269 }
4270
4271 local_bh_disable();
4272 ieee80211_xmit(sdata, sta, skb);
4273 local_bh_enable();
4274
4275 ret = 0;
4276 unlock:
4277 rcu_read_unlock();
4278
4279 return ret;
4280 }
4281
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)4282 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4283 struct wireless_dev *wdev,
4284 unsigned int link_id,
4285 struct cfg80211_chan_def *chandef)
4286 {
4287 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4288 struct ieee80211_local *local = wiphy_priv(wiphy);
4289 struct ieee80211_chanctx_conf *chanctx_conf;
4290 struct ieee80211_link_data *link;
4291 int ret = -ENODATA;
4292
4293 rcu_read_lock();
4294 link = rcu_dereference(sdata->link[link_id]);
4295 if (!link) {
4296 ret = -ENOLINK;
4297 goto out;
4298 }
4299
4300 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4301 if (chanctx_conf) {
4302 *chandef = link->conf->chanreq.oper;
4303 ret = 0;
4304 } else if (local->open_count > 0 &&
4305 local->open_count == local->monitors &&
4306 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4307 *chandef = local->monitor_chanreq.oper;
4308 ret = 0;
4309 }
4310 out:
4311 rcu_read_unlock();
4312
4313 return ret;
4314 }
4315
4316 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)4317 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4318 {
4319 drv_set_wakeup(wiphy_priv(wiphy), enabled);
4320 }
4321 #endif
4322
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)4323 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4324 struct net_device *dev,
4325 struct cfg80211_qos_map *qos_map)
4326 {
4327 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4328 struct mac80211_qos_map *new_qos_map, *old_qos_map;
4329
4330 if (qos_map) {
4331 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4332 if (!new_qos_map)
4333 return -ENOMEM;
4334 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4335 } else {
4336 /* A NULL qos_map was passed to disable QoS mapping */
4337 new_qos_map = NULL;
4338 }
4339
4340 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4341 rcu_assign_pointer(sdata->qos_map, new_qos_map);
4342 if (old_qos_map)
4343 kfree_rcu(old_qos_map, rcu_head);
4344
4345 return 0;
4346 }
4347
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,struct cfg80211_chan_def * chandef)4348 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4349 struct net_device *dev,
4350 unsigned int link_id,
4351 struct cfg80211_chan_def *chandef)
4352 {
4353 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4354 struct ieee80211_link_data *link;
4355 struct ieee80211_chan_req chanreq = { .oper = *chandef };
4356 int ret;
4357 u64 changed = 0;
4358
4359 link = sdata_dereference(sdata->link[link_id], sdata);
4360
4361 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed);
4362 if (ret == 0)
4363 ieee80211_link_info_change_notify(sdata, link, changed);
4364
4365 return ret;
4366 }
4367
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)4368 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4369 u8 tsid, const u8 *peer, u8 up,
4370 u16 admitted_time)
4371 {
4372 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4373 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4374 int ac = ieee802_1d_to_ac[up];
4375
4376 if (sdata->vif.type != NL80211_IFTYPE_STATION)
4377 return -EOPNOTSUPP;
4378
4379 if (!(sdata->wmm_acm & BIT(up)))
4380 return -EINVAL;
4381
4382 if (ifmgd->tx_tspec[ac].admitted_time)
4383 return -EBUSY;
4384
4385 if (admitted_time) {
4386 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4387 ifmgd->tx_tspec[ac].tsid = tsid;
4388 ifmgd->tx_tspec[ac].up = up;
4389 }
4390
4391 return 0;
4392 }
4393
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)4394 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4395 u8 tsid, const u8 *peer)
4396 {
4397 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4398 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4399 struct ieee80211_local *local = wiphy_priv(wiphy);
4400 int ac;
4401
4402 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4403 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4404
4405 /* skip unused entries */
4406 if (!tx_tspec->admitted_time)
4407 continue;
4408
4409 if (tx_tspec->tsid != tsid)
4410 continue;
4411
4412 /* due to this new packets will be reassigned to non-ACM ACs */
4413 tx_tspec->up = -1;
4414
4415 /* Make sure that all packets have been sent to avoid to
4416 * restore the QoS params on packets that are still on the
4417 * queues.
4418 */
4419 synchronize_net();
4420 ieee80211_flush_queues(local, sdata, false);
4421
4422 /* restore the normal QoS parameters
4423 * (unconditionally to avoid races)
4424 */
4425 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4426 tx_tspec->downgraded = false;
4427 ieee80211_sta_handle_tspec_ac_params(sdata);
4428
4429 /* finally clear all the data */
4430 memset(tx_tspec, 0, sizeof(*tx_tspec));
4431
4432 return 0;
4433 }
4434
4435 return -ENOENT;
4436 }
4437
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)4438 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4439 u8 inst_id,
4440 enum nl80211_nan_func_term_reason reason,
4441 gfp_t gfp)
4442 {
4443 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4444 struct cfg80211_nan_func *func;
4445 u64 cookie;
4446
4447 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4448 return;
4449
4450 spin_lock_bh(&sdata->u.nan.func_lock);
4451
4452 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4453 if (WARN_ON(!func)) {
4454 spin_unlock_bh(&sdata->u.nan.func_lock);
4455 return;
4456 }
4457
4458 cookie = func->cookie;
4459 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4460
4461 spin_unlock_bh(&sdata->u.nan.func_lock);
4462
4463 cfg80211_free_nan_func(func);
4464
4465 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4466 reason, cookie, gfp);
4467 }
4468 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4469
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)4470 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4471 struct cfg80211_nan_match_params *match,
4472 gfp_t gfp)
4473 {
4474 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4475 struct cfg80211_nan_func *func;
4476
4477 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4478 return;
4479
4480 spin_lock_bh(&sdata->u.nan.func_lock);
4481
4482 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
4483 if (WARN_ON(!func)) {
4484 spin_unlock_bh(&sdata->u.nan.func_lock);
4485 return;
4486 }
4487 match->cookie = func->cookie;
4488
4489 spin_unlock_bh(&sdata->u.nan.func_lock);
4490
4491 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4492 }
4493 EXPORT_SYMBOL(ieee80211_nan_func_match);
4494
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)4495 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4496 struct net_device *dev,
4497 const bool enabled)
4498 {
4499 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4500
4501 sdata->u.ap.multicast_to_unicast = enabled;
4502
4503 return 0;
4504 }
4505
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)4506 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4507 struct txq_info *txqi)
4508 {
4509 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4510 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4511 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4512 }
4513
4514 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4515 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4516 txqstats->backlog_packets = txqi->tin.backlog_packets;
4517 }
4518
4519 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4520 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4521 txqstats->flows = txqi->tin.flows;
4522 }
4523
4524 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4525 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4526 txqstats->drops = txqi->cstats.drop_count;
4527 }
4528
4529 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4530 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4531 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4532 }
4533
4534 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4535 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4536 txqstats->overlimit = txqi->tin.overlimit;
4537 }
4538
4539 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4540 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4541 txqstats->collisions = txqi->tin.collisions;
4542 }
4543
4544 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4545 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4546 txqstats->tx_bytes = txqi->tin.tx_bytes;
4547 }
4548
4549 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4550 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4551 txqstats->tx_packets = txqi->tin.tx_packets;
4552 }
4553 }
4554
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)4555 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4556 struct wireless_dev *wdev,
4557 struct cfg80211_txq_stats *txqstats)
4558 {
4559 struct ieee80211_local *local = wiphy_priv(wiphy);
4560 struct ieee80211_sub_if_data *sdata;
4561 int ret = 0;
4562
4563 spin_lock_bh(&local->fq.lock);
4564 rcu_read_lock();
4565
4566 if (wdev) {
4567 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4568 if (!sdata->vif.txq) {
4569 ret = 1;
4570 goto out;
4571 }
4572 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4573 } else {
4574 /* phy stats */
4575 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4576 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4577 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4578 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4579 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4580 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4581 txqstats->backlog_packets = local->fq.backlog;
4582 txqstats->backlog_bytes = local->fq.memory_usage;
4583 txqstats->overlimit = local->fq.overlimit;
4584 txqstats->overmemory = local->fq.overmemory;
4585 txqstats->collisions = local->fq.collisions;
4586 txqstats->max_flows = local->fq.flows_cnt;
4587 }
4588
4589 out:
4590 rcu_read_unlock();
4591 spin_unlock_bh(&local->fq.lock);
4592
4593 return ret;
4594 }
4595
4596 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4597 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4598 struct net_device *dev,
4599 struct cfg80211_ftm_responder_stats *ftm_stats)
4600 {
4601 struct ieee80211_local *local = wiphy_priv(wiphy);
4602 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4603
4604 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4605 }
4606
4607 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4608 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4609 struct cfg80211_pmsr_request *request)
4610 {
4611 struct ieee80211_local *local = wiphy_priv(wiphy);
4612 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4613
4614 return drv_start_pmsr(local, sdata, request);
4615 }
4616
4617 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4618 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4619 struct cfg80211_pmsr_request *request)
4620 {
4621 struct ieee80211_local *local = wiphy_priv(wiphy);
4622 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4623
4624 return drv_abort_pmsr(local, sdata, request);
4625 }
4626
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4627 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4628 struct net_device *dev,
4629 struct cfg80211_tid_config *tid_conf)
4630 {
4631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4632 struct sta_info *sta;
4633
4634 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4635
4636 if (!sdata->local->ops->set_tid_config)
4637 return -EOPNOTSUPP;
4638
4639 if (!tid_conf->peer)
4640 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4641
4642 sta = sta_info_get_bss(sdata, tid_conf->peer);
4643 if (!sta)
4644 return -ENOENT;
4645
4646 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4647 }
4648
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4649 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4650 struct net_device *dev,
4651 const u8 *peer, u8 tids)
4652 {
4653 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4654 struct sta_info *sta;
4655
4656 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4657
4658 if (!sdata->local->ops->reset_tid_config)
4659 return -EOPNOTSUPP;
4660
4661 if (!peer)
4662 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4663
4664 sta = sta_info_get_bss(sdata, peer);
4665 if (!sta)
4666 return -ENOENT;
4667
4668 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4669 }
4670
ieee80211_set_sar_specs(struct wiphy * wiphy,struct cfg80211_sar_specs * sar)4671 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4672 struct cfg80211_sar_specs *sar)
4673 {
4674 struct ieee80211_local *local = wiphy_priv(wiphy);
4675
4676 if (!local->ops->set_sar_specs)
4677 return -EOPNOTSUPP;
4678
4679 return local->ops->set_sar_specs(&local->hw, sar);
4680 }
4681
4682 static int
ieee80211_set_after_color_change_beacon(struct ieee80211_link_data * link,u64 * changed)4683 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link,
4684 u64 *changed)
4685 {
4686 struct ieee80211_sub_if_data *sdata = link->sdata;
4687
4688 switch (sdata->vif.type) {
4689 case NL80211_IFTYPE_AP: {
4690 int ret;
4691
4692 if (!link->u.ap.next_beacon)
4693 return -EINVAL;
4694
4695 ret = ieee80211_assign_beacon(sdata, link,
4696 link->u.ap.next_beacon,
4697 NULL, NULL, changed);
4698 ieee80211_free_next_beacon(link);
4699
4700 if (ret < 0)
4701 return ret;
4702
4703 break;
4704 }
4705 default:
4706 WARN_ON_ONCE(1);
4707 return -EINVAL;
4708 }
4709
4710 return 0;
4711 }
4712
4713 static int
ieee80211_set_color_change_beacon(struct ieee80211_link_data * link,struct cfg80211_color_change_settings * params,u64 * changed)4714 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link,
4715 struct cfg80211_color_change_settings *params,
4716 u64 *changed)
4717 {
4718 struct ieee80211_sub_if_data *sdata = link->sdata;
4719 struct ieee80211_color_change_settings color_change = {};
4720 int err;
4721
4722 switch (sdata->vif.type) {
4723 case NL80211_IFTYPE_AP:
4724 link->u.ap.next_beacon =
4725 cfg80211_beacon_dup(¶ms->beacon_next);
4726 if (!link->u.ap.next_beacon)
4727 return -ENOMEM;
4728
4729 if (params->count <= 1)
4730 break;
4731
4732 color_change.counter_offset_beacon =
4733 params->counter_offset_beacon;
4734 color_change.counter_offset_presp =
4735 params->counter_offset_presp;
4736 color_change.count = params->count;
4737
4738 err = ieee80211_assign_beacon(sdata, link,
4739 ¶ms->beacon_color_change,
4740 NULL, &color_change, changed);
4741 if (err < 0) {
4742 ieee80211_free_next_beacon(link);
4743 return err;
4744 }
4745 break;
4746 default:
4747 return -EOPNOTSUPP;
4748 }
4749
4750 return 0;
4751 }
4752
4753 static void
ieee80211_color_change_bss_config_notify(struct ieee80211_link_data * link,u8 color,int enable,u64 changed)4754 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link,
4755 u8 color, int enable, u64 changed)
4756 {
4757 struct ieee80211_sub_if_data *sdata = link->sdata;
4758
4759 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4760
4761 link->conf->he_bss_color.color = color;
4762 link->conf->he_bss_color.enabled = enable;
4763 changed |= BSS_CHANGED_HE_BSS_COLOR;
4764
4765 ieee80211_link_info_change_notify(sdata, link, changed);
4766
4767 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4768 struct ieee80211_sub_if_data *child;
4769
4770 list_for_each_entry(child, &sdata->local->interfaces, list) {
4771 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4772 child->vif.bss_conf.he_bss_color.color = color;
4773 child->vif.bss_conf.he_bss_color.enabled = enable;
4774 ieee80211_link_info_change_notify(child,
4775 &child->deflink,
4776 BSS_CHANGED_HE_BSS_COLOR);
4777 }
4778 }
4779 }
4780 }
4781
ieee80211_color_change_finalize(struct ieee80211_link_data * link)4782 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link)
4783 {
4784 struct ieee80211_sub_if_data *sdata = link->sdata;
4785 struct ieee80211_local *local = sdata->local;
4786 u64 changed = 0;
4787 int err;
4788
4789 lockdep_assert_wiphy(local->hw.wiphy);
4790
4791 link->conf->color_change_active = false;
4792
4793 err = ieee80211_set_after_color_change_beacon(link, &changed);
4794 if (err) {
4795 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id);
4796 return err;
4797 }
4798
4799 ieee80211_color_change_bss_config_notify(link,
4800 link->conf->color_change_color,
4801 1, changed);
4802 cfg80211_color_change_notify(sdata->dev, link->link_id);
4803
4804 return 0;
4805 }
4806
ieee80211_color_change_finalize_work(struct wiphy * wiphy,struct wiphy_work * work)4807 void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
4808 struct wiphy_work *work)
4809 {
4810 struct ieee80211_link_data *link =
4811 container_of(work, struct ieee80211_link_data,
4812 color_change_finalize_work);
4813 struct ieee80211_sub_if_data *sdata = link->sdata;
4814 struct ieee80211_bss_conf *link_conf = link->conf;
4815 struct ieee80211_local *local = sdata->local;
4816
4817 lockdep_assert_wiphy(local->hw.wiphy);
4818
4819 /* AP might have been stopped while waiting for the lock. */
4820 if (!link_conf->color_change_active)
4821 return;
4822
4823 if (!ieee80211_sdata_running(sdata))
4824 return;
4825
4826 ieee80211_color_change_finalize(link);
4827 }
4828
ieee80211_color_collision_detection_work(struct work_struct * work)4829 void ieee80211_color_collision_detection_work(struct work_struct *work)
4830 {
4831 struct delayed_work *delayed_work = to_delayed_work(work);
4832 struct ieee80211_link_data *link =
4833 container_of(delayed_work, struct ieee80211_link_data,
4834 color_collision_detect_work);
4835 struct ieee80211_sub_if_data *sdata = link->sdata;
4836
4837 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap,
4838 link->link_id);
4839 }
4840
ieee80211_color_change_finish(struct ieee80211_vif * vif,u8 link_id)4841 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id)
4842 {
4843 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4844 struct ieee80211_link_data *link;
4845
4846 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4847 return;
4848
4849 rcu_read_lock();
4850
4851 link = rcu_dereference(sdata->link[link_id]);
4852 if (WARN_ON(!link)) {
4853 rcu_read_unlock();
4854 return;
4855 }
4856
4857 wiphy_work_queue(sdata->local->hw.wiphy,
4858 &link->color_change_finalize_work);
4859
4860 rcu_read_unlock();
4861 }
4862 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4863
4864 void
ieee80211_obss_color_collision_notify(struct ieee80211_vif * vif,u64 color_bitmap,u8 link_id)4865 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4866 u64 color_bitmap, u8 link_id)
4867 {
4868 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4869 struct ieee80211_link_data *link;
4870
4871 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4872 return;
4873
4874 rcu_read_lock();
4875
4876 link = rcu_dereference(sdata->link[link_id]);
4877 if (WARN_ON(!link)) {
4878 rcu_read_unlock();
4879 return;
4880 }
4881
4882 if (link->conf->color_change_active || link->conf->csa_active) {
4883 rcu_read_unlock();
4884 return;
4885 }
4886
4887 if (delayed_work_pending(&link->color_collision_detect_work)) {
4888 rcu_read_unlock();
4889 return;
4890 }
4891
4892 link->color_bitmap = color_bitmap;
4893 /* queue the color collision detection event every 500 ms in order to
4894 * avoid sending too much netlink messages to userspace.
4895 */
4896 ieee80211_queue_delayed_work(&sdata->local->hw,
4897 &link->color_collision_detect_work,
4898 msecs_to_jiffies(500));
4899
4900 rcu_read_unlock();
4901 }
4902 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
4903
4904 static int
ieee80211_color_change(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_color_change_settings * params)4905 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4906 struct cfg80211_color_change_settings *params)
4907 {
4908 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4909 struct ieee80211_local *local = sdata->local;
4910 struct ieee80211_bss_conf *link_conf;
4911 struct ieee80211_link_data *link;
4912 u8 link_id = params->link_id;
4913 u64 changed = 0;
4914 int err;
4915
4916 lockdep_assert_wiphy(local->hw.wiphy);
4917
4918 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4919 return -EINVAL;
4920
4921 link = wiphy_dereference(wiphy, sdata->link[link_id]);
4922 if (!link)
4923 return -ENOLINK;
4924
4925 link_conf = link->conf;
4926
4927 if (link_conf->nontransmitted)
4928 return -EINVAL;
4929
4930 /* don't allow another color change if one is already active or if csa
4931 * is active
4932 */
4933 if (link_conf->color_change_active || link_conf->csa_active) {
4934 err = -EBUSY;
4935 goto out;
4936 }
4937
4938 err = ieee80211_set_color_change_beacon(link, params, &changed);
4939 if (err)
4940 goto out;
4941
4942 link_conf->color_change_active = true;
4943 link_conf->color_change_color = params->color;
4944
4945 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id);
4946
4947 if (changed)
4948 ieee80211_color_change_bss_config_notify(link, 0, 0, changed);
4949 else
4950 /* if the beacon didn't change, we can finalize immediately */
4951 ieee80211_color_change_finalize(link);
4952
4953 out:
4954
4955 return err;
4956 }
4957
4958 static int
ieee80211_set_radar_background(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)4959 ieee80211_set_radar_background(struct wiphy *wiphy,
4960 struct cfg80211_chan_def *chandef)
4961 {
4962 struct ieee80211_local *local = wiphy_priv(wiphy);
4963
4964 if (!local->ops->set_radar_background)
4965 return -EOPNOTSUPP;
4966
4967 return local->ops->set_radar_background(&local->hw, chandef);
4968 }
4969
ieee80211_add_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)4970 static int ieee80211_add_intf_link(struct wiphy *wiphy,
4971 struct wireless_dev *wdev,
4972 unsigned int link_id)
4973 {
4974 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4975
4976 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4977
4978 if (wdev->use_4addr)
4979 return -EOPNOTSUPP;
4980
4981 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
4982 }
4983
ieee80211_del_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)4984 static void ieee80211_del_intf_link(struct wiphy *wiphy,
4985 struct wireless_dev *wdev,
4986 unsigned int link_id)
4987 {
4988 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4989
4990 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4991
4992 ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
4993 }
4994
4995 static int
ieee80211_add_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)4996 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
4997 struct link_station_parameters *params)
4998 {
4999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5000 struct ieee80211_local *local = wiphy_priv(wiphy);
5001 struct sta_info *sta;
5002 int ret;
5003
5004 lockdep_assert_wiphy(local->hw.wiphy);
5005
5006 sta = sta_info_get_bss(sdata, params->mld_mac);
5007 if (!sta)
5008 return -ENOENT;
5009
5010 if (!sta->sta.valid_links)
5011 return -EINVAL;
5012
5013 if (sta->sta.valid_links & BIT(params->link_id))
5014 return -EALREADY;
5015
5016 ret = ieee80211_sta_allocate_link(sta, params->link_id);
5017 if (ret)
5018 return ret;
5019
5020 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params);
5021 if (ret) {
5022 ieee80211_sta_free_link(sta, params->link_id);
5023 return ret;
5024 }
5025
5026 /* ieee80211_sta_activate_link frees the link upon failure */
5027 return ieee80211_sta_activate_link(sta, params->link_id);
5028 }
5029
5030 static int
ieee80211_mod_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)5031 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
5032 struct link_station_parameters *params)
5033 {
5034 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5035 struct ieee80211_local *local = wiphy_priv(wiphy);
5036 struct sta_info *sta;
5037
5038 lockdep_assert_wiphy(local->hw.wiphy);
5039
5040 sta = sta_info_get_bss(sdata, params->mld_mac);
5041 if (!sta)
5042 return -ENOENT;
5043
5044 if (!(sta->sta.valid_links & BIT(params->link_id)))
5045 return -EINVAL;
5046
5047 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY,
5048 params);
5049 }
5050
5051 static int
ieee80211_del_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_del_parameters * params)5052 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
5053 struct link_station_del_parameters *params)
5054 {
5055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5056 struct sta_info *sta;
5057
5058 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5059
5060 sta = sta_info_get_bss(sdata, params->mld_mac);
5061 if (!sta)
5062 return -ENOENT;
5063
5064 if (!(sta->sta.valid_links & BIT(params->link_id)))
5065 return -EINVAL;
5066
5067 /* must not create a STA without links */
5068 if (sta->sta.valid_links == BIT(params->link_id))
5069 return -EINVAL;
5070
5071 ieee80211_sta_remove_link(sta, params->link_id);
5072
5073 return 0;
5074 }
5075
ieee80211_set_hw_timestamp(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_set_hw_timestamp * hwts)5076 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
5077 struct net_device *dev,
5078 struct cfg80211_set_hw_timestamp *hwts)
5079 {
5080 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5081 struct ieee80211_local *local = sdata->local;
5082
5083 if (!local->ops->set_hw_timestamp)
5084 return -EOPNOTSUPP;
5085
5086 if (!check_sdata_in_driver(sdata))
5087 return -EIO;
5088
5089 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
5090 }
5091
5092 static int
ieee80211_set_ttlm(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ttlm_params * params)5093 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev,
5094 struct cfg80211_ttlm_params *params)
5095 {
5096 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5097
5098 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5099
5100 return ieee80211_req_neg_ttlm(sdata, params);
5101 }
5102
5103 const struct cfg80211_ops mac80211_config_ops = {
5104 .add_virtual_intf = ieee80211_add_iface,
5105 .del_virtual_intf = ieee80211_del_iface,
5106 .change_virtual_intf = ieee80211_change_iface,
5107 .start_p2p_device = ieee80211_start_p2p_device,
5108 .stop_p2p_device = ieee80211_stop_p2p_device,
5109 .add_key = ieee80211_add_key,
5110 .del_key = ieee80211_del_key,
5111 .get_key = ieee80211_get_key,
5112 .set_default_key = ieee80211_config_default_key,
5113 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5114 .set_default_beacon_key = ieee80211_config_default_beacon_key,
5115 .start_ap = ieee80211_start_ap,
5116 .change_beacon = ieee80211_change_beacon,
5117 .stop_ap = ieee80211_stop_ap,
5118 .add_station = ieee80211_add_station,
5119 .del_station = ieee80211_del_station,
5120 .change_station = ieee80211_change_station,
5121 .get_station = ieee80211_get_station,
5122 .dump_station = ieee80211_dump_station,
5123 .dump_survey = ieee80211_dump_survey,
5124 #ifdef CONFIG_MAC80211_MESH
5125 .add_mpath = ieee80211_add_mpath,
5126 .del_mpath = ieee80211_del_mpath,
5127 .change_mpath = ieee80211_change_mpath,
5128 .get_mpath = ieee80211_get_mpath,
5129 .dump_mpath = ieee80211_dump_mpath,
5130 .get_mpp = ieee80211_get_mpp,
5131 .dump_mpp = ieee80211_dump_mpp,
5132 .update_mesh_config = ieee80211_update_mesh_config,
5133 .get_mesh_config = ieee80211_get_mesh_config,
5134 .join_mesh = ieee80211_join_mesh,
5135 .leave_mesh = ieee80211_leave_mesh,
5136 #endif
5137 .join_ocb = ieee80211_join_ocb,
5138 .leave_ocb = ieee80211_leave_ocb,
5139 .change_bss = ieee80211_change_bss,
5140 .inform_bss = ieee80211_inform_bss,
5141 .set_txq_params = ieee80211_set_txq_params,
5142 .set_monitor_channel = ieee80211_set_monitor_channel,
5143 .suspend = ieee80211_suspend,
5144 .resume = ieee80211_resume,
5145 .scan = ieee80211_scan,
5146 .abort_scan = ieee80211_abort_scan,
5147 .sched_scan_start = ieee80211_sched_scan_start,
5148 .sched_scan_stop = ieee80211_sched_scan_stop,
5149 .auth = ieee80211_auth,
5150 .assoc = ieee80211_assoc,
5151 .deauth = ieee80211_deauth,
5152 .disassoc = ieee80211_disassoc,
5153 .join_ibss = ieee80211_join_ibss,
5154 .leave_ibss = ieee80211_leave_ibss,
5155 .set_mcast_rate = ieee80211_set_mcast_rate,
5156 .set_wiphy_params = ieee80211_set_wiphy_params,
5157 .set_tx_power = ieee80211_set_tx_power,
5158 .get_tx_power = ieee80211_get_tx_power,
5159 .rfkill_poll = ieee80211_rfkill_poll,
5160 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
5161 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
5162 .set_power_mgmt = ieee80211_set_power_mgmt,
5163 .set_bitrate_mask = ieee80211_set_bitrate_mask,
5164 .remain_on_channel = ieee80211_remain_on_channel,
5165 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
5166 .mgmt_tx = ieee80211_mgmt_tx,
5167 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
5168 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
5169 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
5170 .update_mgmt_frame_registrations =
5171 ieee80211_update_mgmt_frame_registrations,
5172 .set_antenna = ieee80211_set_antenna,
5173 .get_antenna = ieee80211_get_antenna,
5174 .set_rekey_data = ieee80211_set_rekey_data,
5175 .tdls_oper = ieee80211_tdls_oper,
5176 .tdls_mgmt = ieee80211_tdls_mgmt,
5177 .tdls_channel_switch = ieee80211_tdls_channel_switch,
5178 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
5179 .probe_client = ieee80211_probe_client,
5180 .set_noack_map = ieee80211_set_noack_map,
5181 #ifdef CONFIG_PM
5182 .set_wakeup = ieee80211_set_wakeup,
5183 #endif
5184 .get_channel = ieee80211_cfg_get_channel,
5185 .start_radar_detection = ieee80211_start_radar_detection,
5186 .end_cac = ieee80211_end_cac,
5187 .channel_switch = ieee80211_channel_switch,
5188 .set_qos_map = ieee80211_set_qos_map,
5189 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
5190 .add_tx_ts = ieee80211_add_tx_ts,
5191 .del_tx_ts = ieee80211_del_tx_ts,
5192 .start_nan = ieee80211_start_nan,
5193 .stop_nan = ieee80211_stop_nan,
5194 .nan_change_conf = ieee80211_nan_change_conf,
5195 .add_nan_func = ieee80211_add_nan_func,
5196 .del_nan_func = ieee80211_del_nan_func,
5197 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5198 .tx_control_port = ieee80211_tx_control_port,
5199 .get_txq_stats = ieee80211_get_txq_stats,
5200 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5201 .start_pmsr = ieee80211_start_pmsr,
5202 .abort_pmsr = ieee80211_abort_pmsr,
5203 .probe_mesh_link = ieee80211_probe_mesh_link,
5204 .set_tid_config = ieee80211_set_tid_config,
5205 .reset_tid_config = ieee80211_reset_tid_config,
5206 .set_sar_specs = ieee80211_set_sar_specs,
5207 .color_change = ieee80211_color_change,
5208 .set_radar_background = ieee80211_set_radar_background,
5209 .add_intf_link = ieee80211_add_intf_link,
5210 .del_intf_link = ieee80211_del_intf_link,
5211 .add_link_station = ieee80211_add_link_station,
5212 .mod_link_station = ieee80211_mod_link_station,
5213 .del_link_station = ieee80211_del_link_station,
5214 .set_hw_timestamp = ieee80211_set_hw_timestamp,
5215 .set_ttlm = ieee80211_set_ttlm,
5216 .get_radio_mask = ieee80211_get_radio_mask,
5217 };
5218