1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * mac80211 configuration hooks for cfg80211
4 *
5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
6 * Copyright 2013-2015 Intel Mobile Communications GmbH
7 * Copyright (C) 2015-2017 Intel Deutschland GmbH
8 * Copyright (C) 2018-2025 Intel Corporation
9 */
10
11 #include <linux/ieee80211.h>
12 #include <linux/nl80211.h>
13 #include <linux/rtnetlink.h>
14 #include <linux/slab.h>
15 #include <net/net_namespace.h>
16 #include <linux/rcupdate.h>
17 #include <linux/fips.h>
18 #include <linux/if_ether.h>
19 #include <net/cfg80211.h>
20 #include "ieee80211_i.h"
21 #include "driver-ops.h"
22 #include "rate.h"
23 #include "mesh.h"
24 #include "wme.h"
25
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_ACTIVE;
93
94 /*
95 * Prohibit MONITOR_FLAG_ACTIVE to be changed
96 * while the interface is up.
97 * Else we would need to add a lot of cruft
98 * to update everything:
99 * monitor and all fif_* counters
100 * reconfigure hardware
101 */
102 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
103 return -EBUSY;
104 }
105
106 /* also validate MU-MIMO change */
107 if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
108 monitor_sdata = sdata;
109 else
110 monitor_sdata = wiphy_dereference(local->hw.wiphy,
111 local->monitor_sdata);
112
113 if (!monitor_sdata &&
114 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
115 return -EOPNOTSUPP;
116
117 /* apply all changes now - no failures allowed */
118
119 if (monitor_sdata &&
120 (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
121 ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)))
122 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
123
124 if (params->flags) {
125 if (ieee80211_sdata_running(sdata)) {
126 ieee80211_adjust_monitor_flags(sdata, -1);
127 sdata->u.mntr.flags = params->flags;
128 ieee80211_adjust_monitor_flags(sdata, 1);
129
130 ieee80211_configure_filter(local);
131 } else {
132 /*
133 * Because the interface is down, ieee80211_do_stop
134 * and ieee80211_do_open take care of "everything"
135 * mentioned in the comment above.
136 */
137 sdata->u.mntr.flags = params->flags;
138 }
139 }
140
141 return 0;
142 }
143
ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data * sdata,struct cfg80211_mbssid_config * params,struct ieee80211_bss_conf * link_conf)144 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
145 struct cfg80211_mbssid_config *params,
146 struct ieee80211_bss_conf *link_conf)
147 {
148 struct ieee80211_sub_if_data *tx_sdata;
149
150 sdata->vif.mbssid_tx_vif = NULL;
151 link_conf->bssid_index = 0;
152 link_conf->nontransmitted = false;
153 link_conf->ema_ap = false;
154 link_conf->bssid_indicator = 0;
155
156 if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev)
157 return -EINVAL;
158
159 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev);
160 if (!tx_sdata)
161 return -EINVAL;
162
163 if (tx_sdata == sdata) {
164 sdata->vif.mbssid_tx_vif = &sdata->vif;
165 } else {
166 sdata->vif.mbssid_tx_vif = &tx_sdata->vif;
167 link_conf->nontransmitted = true;
168 link_conf->bssid_index = params->index;
169 }
170 if (params->ema)
171 link_conf->ema_ap = true;
172
173 return 0;
174 }
175
ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)176 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
177 const char *name,
178 unsigned char name_assign_type,
179 enum nl80211_iftype type,
180 struct vif_params *params)
181 {
182 struct ieee80211_local *local = wiphy_priv(wiphy);
183 struct wireless_dev *wdev;
184 struct ieee80211_sub_if_data *sdata;
185 int err;
186
187 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
188 if (err)
189 return ERR_PTR(err);
190
191 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
192
193 if (type == NL80211_IFTYPE_MONITOR) {
194 err = ieee80211_set_mon_options(sdata, params);
195 if (err) {
196 ieee80211_if_remove(sdata);
197 return NULL;
198 }
199 }
200
201 /* Let the driver know that an interface is going to be added.
202 * Indicate so only for interface types that will be added to the
203 * driver.
204 */
205 switch (type) {
206 case NL80211_IFTYPE_AP_VLAN:
207 break;
208 case NL80211_IFTYPE_MONITOR:
209 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
210 !(params->flags & MONITOR_FLAG_ACTIVE))
211 break;
212 fallthrough;
213 default:
214 drv_prep_add_interface(local,
215 ieee80211_vif_type_p2p(&sdata->vif));
216 break;
217 }
218
219 return wdev;
220 }
221
ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)222 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
223 {
224 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
225
226 return 0;
227 }
228
ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)229 static int ieee80211_change_iface(struct wiphy *wiphy,
230 struct net_device *dev,
231 enum nl80211_iftype type,
232 struct vif_params *params)
233 {
234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
235 struct ieee80211_local *local = sdata->local;
236 struct sta_info *sta;
237 int ret;
238
239 lockdep_assert_wiphy(local->hw.wiphy);
240
241 ret = ieee80211_if_change_type(sdata, type);
242 if (ret)
243 return ret;
244
245 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
246 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
247 ieee80211_check_fast_rx_iface(sdata);
248 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
249 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
250
251 if (params->use_4addr == ifmgd->use_4addr)
252 return 0;
253
254 /* FIXME: no support for 4-addr MLO yet */
255 if (ieee80211_vif_is_mld(&sdata->vif))
256 return -EOPNOTSUPP;
257
258 sdata->u.mgd.use_4addr = params->use_4addr;
259 if (!ifmgd->associated)
260 return 0;
261
262 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
263 if (sta)
264 drv_sta_set_4addr(local, sdata, &sta->sta,
265 params->use_4addr);
266
267 if (params->use_4addr)
268 ieee80211_send_4addr_nullfunc(local, sdata);
269 }
270
271 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
272 ret = ieee80211_set_mon_options(sdata, params);
273 if (ret)
274 return ret;
275 }
276
277 return 0;
278 }
279
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)280 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
281 struct wireless_dev *wdev)
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 return ieee80211_do_open(wdev, true);
293 }
294
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)295 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
296 struct wireless_dev *wdev)
297 {
298 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
299 }
300
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)301 static int ieee80211_start_nan(struct wiphy *wiphy,
302 struct wireless_dev *wdev,
303 struct cfg80211_nan_conf *conf)
304 {
305 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
306 int ret;
307
308 lockdep_assert_wiphy(sdata->local->hw.wiphy);
309
310 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
311 if (ret < 0)
312 return ret;
313
314 ret = ieee80211_do_open(wdev, true);
315 if (ret)
316 return ret;
317
318 ret = drv_start_nan(sdata->local, sdata, conf);
319 if (ret)
320 ieee80211_sdata_stop(sdata);
321
322 sdata->u.nan.conf = *conf;
323
324 return ret;
325 }
326
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)327 static void ieee80211_stop_nan(struct wiphy *wiphy,
328 struct wireless_dev *wdev)
329 {
330 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
331
332 drv_stop_nan(sdata->local, sdata);
333 ieee80211_sdata_stop(sdata);
334 }
335
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)336 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
337 struct wireless_dev *wdev,
338 struct cfg80211_nan_conf *conf,
339 u32 changes)
340 {
341 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
342 struct cfg80211_nan_conf new_conf;
343 int ret = 0;
344
345 if (sdata->vif.type != NL80211_IFTYPE_NAN)
346 return -EOPNOTSUPP;
347
348 if (!ieee80211_sdata_running(sdata))
349 return -ENETDOWN;
350
351 new_conf = sdata->u.nan.conf;
352
353 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
354 new_conf.master_pref = conf->master_pref;
355
356 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
357 new_conf.bands = conf->bands;
358
359 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
360 if (!ret)
361 sdata->u.nan.conf = new_conf;
362
363 return ret;
364 }
365
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)366 static int ieee80211_add_nan_func(struct wiphy *wiphy,
367 struct wireless_dev *wdev,
368 struct cfg80211_nan_func *nan_func)
369 {
370 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
371 int ret;
372
373 if (sdata->vif.type != NL80211_IFTYPE_NAN)
374 return -EOPNOTSUPP;
375
376 if (!ieee80211_sdata_running(sdata))
377 return -ENETDOWN;
378
379 spin_lock_bh(&sdata->u.nan.func_lock);
380
381 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
382 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
383 GFP_ATOMIC);
384 spin_unlock_bh(&sdata->u.nan.func_lock);
385
386 if (ret < 0)
387 return ret;
388
389 nan_func->instance_id = ret;
390
391 WARN_ON(nan_func->instance_id == 0);
392
393 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
394 if (ret) {
395 spin_lock_bh(&sdata->u.nan.func_lock);
396 idr_remove(&sdata->u.nan.function_inst_ids,
397 nan_func->instance_id);
398 spin_unlock_bh(&sdata->u.nan.func_lock);
399 }
400
401 return ret;
402 }
403
404 static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)405 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
406 u64 cookie)
407 {
408 struct cfg80211_nan_func *func;
409 int id;
410
411 lockdep_assert_held(&sdata->u.nan.func_lock);
412
413 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
414 if (func->cookie == cookie)
415 return func;
416 }
417
418 return NULL;
419 }
420
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)421 static void ieee80211_del_nan_func(struct wiphy *wiphy,
422 struct wireless_dev *wdev, u64 cookie)
423 {
424 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
425 struct cfg80211_nan_func *func;
426 u8 instance_id = 0;
427
428 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
429 !ieee80211_sdata_running(sdata))
430 return;
431
432 spin_lock_bh(&sdata->u.nan.func_lock);
433
434 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
435 if (func)
436 instance_id = func->instance_id;
437
438 spin_unlock_bh(&sdata->u.nan.func_lock);
439
440 if (instance_id)
441 drv_del_nan_func(sdata->local, sdata, instance_id);
442 }
443
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)444 static int ieee80211_set_noack_map(struct wiphy *wiphy,
445 struct net_device *dev,
446 u16 noack_map)
447 {
448 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
449
450 sdata->noack_map = noack_map;
451
452 ieee80211_check_fast_xmit_iface(sdata);
453
454 return 0;
455 }
456
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)457 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
458 const u8 *mac_addr, u8 key_idx)
459 {
460 struct ieee80211_local *local = sdata->local;
461 struct ieee80211_key *key;
462 struct sta_info *sta;
463 int ret = -EINVAL;
464
465 if (!wiphy_ext_feature_isset(local->hw.wiphy,
466 NL80211_EXT_FEATURE_EXT_KEY_ID))
467 return -EINVAL;
468
469 sta = sta_info_get_bss(sdata, mac_addr);
470
471 if (!sta)
472 return -EINVAL;
473
474 if (sta->ptk_idx == key_idx)
475 return 0;
476
477 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]);
478
479 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
480 ret = ieee80211_set_tx_key(key);
481
482 return ret;
483 }
484
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)485 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
486 int link_id, u8 key_idx, bool pairwise,
487 const u8 *mac_addr, struct key_params *params)
488 {
489 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
490 struct ieee80211_link_data *link =
491 ieee80211_link_or_deflink(sdata, link_id, false);
492 struct ieee80211_local *local = sdata->local;
493 struct sta_info *sta = NULL;
494 struct ieee80211_key *key;
495 int err;
496
497 lockdep_assert_wiphy(local->hw.wiphy);
498
499 if (!ieee80211_sdata_running(sdata))
500 return -ENETDOWN;
501
502 if (IS_ERR(link))
503 return PTR_ERR(link);
504
505 if (WARN_ON(pairwise && link_id >= 0))
506 return -EINVAL;
507
508 if (pairwise && params->mode == NL80211_KEY_SET_TX)
509 return ieee80211_set_tx(sdata, mac_addr, key_idx);
510
511 /* reject WEP and TKIP keys if WEP failed to initialize */
512 switch (params->cipher) {
513 case WLAN_CIPHER_SUITE_WEP40:
514 case WLAN_CIPHER_SUITE_TKIP:
515 case WLAN_CIPHER_SUITE_WEP104:
516 if (link_id >= 0)
517 return -EINVAL;
518 if (WARN_ON_ONCE(fips_enabled))
519 return -EINVAL;
520 break;
521 default:
522 break;
523 }
524
525 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
526 params->key, params->seq_len, params->seq);
527 if (IS_ERR(key))
528 return PTR_ERR(key);
529
530 if (pairwise) {
531 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
532 key->conf.link_id = -1;
533 } else {
534 key->conf.link_id = link->link_id;
535 }
536
537 if (params->mode == NL80211_KEY_NO_TX)
538 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
539
540 if (mac_addr) {
541 sta = sta_info_get_bss(sdata, mac_addr);
542 /*
543 * The ASSOC test makes sure the driver is ready to
544 * receive the key. When wpa_supplicant has roamed
545 * using FT, it attempts to set the key before
546 * association has completed, this rejects that attempt
547 * so it will set the key again after association.
548 *
549 * TODO: accept the key if we have a station entry and
550 * add it to the device after the station.
551 */
552 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
553 ieee80211_key_free_unused(key);
554 return -ENOENT;
555 }
556 }
557
558 switch (sdata->vif.type) {
559 case NL80211_IFTYPE_STATION:
560 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
561 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
562 break;
563 case NL80211_IFTYPE_AP:
564 case NL80211_IFTYPE_AP_VLAN:
565 /* Keys without a station are used for TX only */
566 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
567 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
568 break;
569 case NL80211_IFTYPE_ADHOC:
570 /* no MFP (yet) */
571 break;
572 case NL80211_IFTYPE_MESH_POINT:
573 #ifdef CONFIG_MAC80211_MESH
574 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
575 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
576 break;
577 #endif
578 case NL80211_IFTYPE_WDS:
579 case NL80211_IFTYPE_MONITOR:
580 case NL80211_IFTYPE_P2P_DEVICE:
581 case NL80211_IFTYPE_NAN:
582 case NL80211_IFTYPE_UNSPECIFIED:
583 case NUM_NL80211_IFTYPES:
584 case NL80211_IFTYPE_P2P_CLIENT:
585 case NL80211_IFTYPE_P2P_GO:
586 case NL80211_IFTYPE_OCB:
587 /* shouldn't happen */
588 WARN_ON_ONCE(1);
589 break;
590 }
591
592 err = ieee80211_key_link(key, link, sta);
593 /* KRACK protection, shouldn't happen but just silently accept key */
594 if (err == -EALREADY)
595 err = 0;
596
597 return err;
598 }
599
600 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)601 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id,
602 u8 key_idx, bool pairwise, const u8 *mac_addr)
603 {
604 struct ieee80211_local *local __maybe_unused = sdata->local;
605 struct ieee80211_link_data *link = &sdata->deflink;
606 struct ieee80211_key *key;
607
608 if (link_id >= 0) {
609 link = sdata_dereference(sdata->link[link_id], sdata);
610 if (!link)
611 return NULL;
612 }
613
614 if (mac_addr) {
615 struct sta_info *sta;
616 struct link_sta_info *link_sta;
617
618 sta = sta_info_get_bss(sdata, mac_addr);
619 if (!sta)
620 return NULL;
621
622 if (link_id >= 0) {
623 link_sta = rcu_dereference_check(sta->link[link_id],
624 lockdep_is_held(&local->hw.wiphy->mtx));
625 if (!link_sta)
626 return NULL;
627 } else {
628 link_sta = &sta->deflink;
629 }
630
631 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
632 return wiphy_dereference(local->hw.wiphy,
633 sta->ptk[key_idx]);
634
635 if (!pairwise &&
636 key_idx < NUM_DEFAULT_KEYS +
637 NUM_DEFAULT_MGMT_KEYS +
638 NUM_DEFAULT_BEACON_KEYS)
639 return wiphy_dereference(local->hw.wiphy,
640 link_sta->gtk[key_idx]);
641
642 return NULL;
643 }
644
645 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
646 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
647
648 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]);
649 if (key)
650 return key;
651
652 /* or maybe it was a WEP key */
653 if (key_idx < NUM_DEFAULT_KEYS)
654 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
655
656 return NULL;
657 }
658
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr)659 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
660 int link_id, u8 key_idx, bool pairwise,
661 const u8 *mac_addr)
662 {
663 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
664 struct ieee80211_local *local = sdata->local;
665 struct ieee80211_key *key;
666
667 lockdep_assert_wiphy(local->hw.wiphy);
668
669 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
670 if (!key)
671 return -ENOENT;
672
673 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
674
675 return 0;
676 }
677
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))678 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
679 int link_id, u8 key_idx, bool pairwise,
680 const u8 *mac_addr, void *cookie,
681 void (*callback)(void *cookie,
682 struct key_params *params))
683 {
684 struct ieee80211_sub_if_data *sdata;
685 u8 seq[6] = {0};
686 struct key_params params;
687 struct ieee80211_key *key;
688 u64 pn64;
689 u32 iv32;
690 u16 iv16;
691 int err = -ENOENT;
692 struct ieee80211_key_seq kseq = {};
693
694 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
695
696 rcu_read_lock();
697
698 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
699 if (!key)
700 goto out;
701
702 memset(¶ms, 0, sizeof(params));
703
704 params.cipher = key->conf.cipher;
705
706 switch (key->conf.cipher) {
707 case WLAN_CIPHER_SUITE_TKIP:
708 pn64 = atomic64_read(&key->conf.tx_pn);
709 iv32 = TKIP_PN_TO_IV32(pn64);
710 iv16 = TKIP_PN_TO_IV16(pn64);
711
712 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
713 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
714 drv_get_key_seq(sdata->local, key, &kseq);
715 iv32 = kseq.tkip.iv32;
716 iv16 = kseq.tkip.iv16;
717 }
718
719 seq[0] = iv16 & 0xff;
720 seq[1] = (iv16 >> 8) & 0xff;
721 seq[2] = iv32 & 0xff;
722 seq[3] = (iv32 >> 8) & 0xff;
723 seq[4] = (iv32 >> 16) & 0xff;
724 seq[5] = (iv32 >> 24) & 0xff;
725 params.seq = seq;
726 params.seq_len = 6;
727 break;
728 case WLAN_CIPHER_SUITE_CCMP:
729 case WLAN_CIPHER_SUITE_CCMP_256:
730 case WLAN_CIPHER_SUITE_AES_CMAC:
731 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
732 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
733 offsetof(typeof(kseq), aes_cmac));
734 fallthrough;
735 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
736 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
737 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
738 offsetof(typeof(kseq), aes_gmac));
739 fallthrough;
740 case WLAN_CIPHER_SUITE_GCMP:
741 case WLAN_CIPHER_SUITE_GCMP_256:
742 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
743 offsetof(typeof(kseq), gcmp));
744
745 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
746 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
747 drv_get_key_seq(sdata->local, key, &kseq);
748 memcpy(seq, kseq.ccmp.pn, 6);
749 } else {
750 pn64 = atomic64_read(&key->conf.tx_pn);
751 seq[0] = pn64;
752 seq[1] = pn64 >> 8;
753 seq[2] = pn64 >> 16;
754 seq[3] = pn64 >> 24;
755 seq[4] = pn64 >> 32;
756 seq[5] = pn64 >> 40;
757 }
758 params.seq = seq;
759 params.seq_len = 6;
760 break;
761 default:
762 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
763 break;
764 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
765 break;
766 drv_get_key_seq(sdata->local, key, &kseq);
767 params.seq = kseq.hw.seq;
768 params.seq_len = kseq.hw.seq_len;
769 break;
770 }
771
772 callback(cookie, ¶ms);
773 err = 0;
774
775 out:
776 rcu_read_unlock();
777 return err;
778 }
779
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool uni,bool multi)780 static int ieee80211_config_default_key(struct wiphy *wiphy,
781 struct net_device *dev,
782 int link_id, u8 key_idx, bool uni,
783 bool multi)
784 {
785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
786 struct ieee80211_link_data *link =
787 ieee80211_link_or_deflink(sdata, link_id, false);
788
789 if (IS_ERR(link))
790 return PTR_ERR(link);
791
792 ieee80211_set_default_key(link, key_idx, uni, multi);
793
794 return 0;
795 }
796
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)797 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
798 struct net_device *dev,
799 int link_id, u8 key_idx)
800 {
801 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
802 struct ieee80211_link_data *link =
803 ieee80211_link_or_deflink(sdata, link_id, true);
804
805 if (IS_ERR(link))
806 return PTR_ERR(link);
807
808 ieee80211_set_default_mgmt_key(link, key_idx);
809
810 return 0;
811 }
812
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)813 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
814 struct net_device *dev,
815 int link_id, u8 key_idx)
816 {
817 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
818 struct ieee80211_link_data *link =
819 ieee80211_link_or_deflink(sdata, link_id, true);
820
821 if (IS_ERR(link))
822 return PTR_ERR(link);
823
824 ieee80211_set_default_beacon_key(link, key_idx);
825
826 return 0;
827 }
828
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)829 void sta_set_rate_info_tx(struct sta_info *sta,
830 const struct ieee80211_tx_rate *rate,
831 struct rate_info *rinfo)
832 {
833 rinfo->flags = 0;
834 if (rate->flags & IEEE80211_TX_RC_MCS) {
835 rinfo->flags |= RATE_INFO_FLAGS_MCS;
836 rinfo->mcs = rate->idx;
837 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
838 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
839 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
840 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
841 } else {
842 struct ieee80211_supported_band *sband;
843
844 sband = ieee80211_get_sband(sta->sdata);
845 WARN_ON_ONCE(sband && !sband->bitrates);
846 if (sband && sband->bitrates)
847 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
848 }
849 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
850 rinfo->bw = RATE_INFO_BW_40;
851 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
852 rinfo->bw = RATE_INFO_BW_80;
853 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
854 rinfo->bw = RATE_INFO_BW_160;
855 else
856 rinfo->bw = RATE_INFO_BW_20;
857 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
858 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
859 }
860
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)861 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
862 int idx, u8 *mac, struct station_info *sinfo)
863 {
864 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
865 struct ieee80211_local *local = sdata->local;
866 struct sta_info *sta;
867 int ret = -ENOENT;
868
869 lockdep_assert_wiphy(local->hw.wiphy);
870
871 sta = sta_info_get_by_idx(sdata, idx);
872 if (sta) {
873 ret = 0;
874 memcpy(mac, sta->sta.addr, ETH_ALEN);
875 sta_set_sinfo(sta, sinfo, true);
876 }
877
878 return ret;
879 }
880
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)881 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
882 int idx, struct survey_info *survey)
883 {
884 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
885
886 return drv_get_survey(local, idx, survey);
887 }
888
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)889 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
890 const u8 *mac, struct station_info *sinfo)
891 {
892 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
893 struct ieee80211_local *local = sdata->local;
894 struct sta_info *sta;
895 int ret = -ENOENT;
896
897 lockdep_assert_wiphy(local->hw.wiphy);
898
899 sta = sta_info_get_bss(sdata, mac);
900 if (sta) {
901 ret = 0;
902 sta_set_sinfo(sta, sinfo, true);
903 }
904
905 return ret;
906 }
907
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef)908 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
909 struct net_device *dev,
910 struct cfg80211_chan_def *chandef)
911 {
912 struct ieee80211_local *local = wiphy_priv(wiphy);
913 struct ieee80211_sub_if_data *sdata;
914 struct ieee80211_chan_req chanreq = { .oper = *chandef };
915 int ret;
916
917 lockdep_assert_wiphy(local->hw.wiphy);
918
919 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
920 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
921 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper,
922 &chanreq.oper))
923 return 0;
924
925 sdata = wiphy_dereference(wiphy, local->monitor_sdata);
926 if (!sdata)
927 goto done;
928 }
929
930 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) &&
931 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper,
932 &chanreq.oper))
933 return 0;
934
935 ieee80211_link_release_channel(&sdata->deflink);
936 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
937 IEEE80211_CHANCTX_SHARED);
938 if (ret)
939 return ret;
940 done:
941 local->monitor_chanreq = chanreq;
942 return 0;
943 }
944
945 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)946 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
947 const u8 *resp, size_t resp_len,
948 const struct ieee80211_csa_settings *csa,
949 const struct ieee80211_color_change_settings *cca,
950 struct ieee80211_link_data *link)
951 {
952 struct probe_resp *new, *old;
953
954 if (!resp || !resp_len)
955 return 1;
956
957 old = sdata_dereference(link->u.ap.probe_resp, sdata);
958
959 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
960 if (!new)
961 return -ENOMEM;
962
963 new->len = resp_len;
964 memcpy(new->data, resp, resp_len);
965
966 if (csa)
967 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
968 csa->n_counter_offsets_presp *
969 sizeof(new->cntdwn_counter_offsets[0]));
970 else if (cca)
971 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
972
973 rcu_assign_pointer(link->u.ap.probe_resp, new);
974 if (old)
975 kfree_rcu(old, rcu_head);
976
977 return 0;
978 }
979
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)980 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
981 struct cfg80211_fils_discovery *params,
982 struct ieee80211_link_data *link,
983 struct ieee80211_bss_conf *link_conf,
984 u64 *changed)
985 {
986 struct fils_discovery_data *new, *old = NULL;
987 struct ieee80211_fils_discovery *fd;
988
989 if (!params->update)
990 return 0;
991
992 fd = &link_conf->fils_discovery;
993 fd->min_interval = params->min_interval;
994 fd->max_interval = params->max_interval;
995
996 old = sdata_dereference(link->u.ap.fils_discovery, sdata);
997 if (old)
998 kfree_rcu(old, rcu_head);
999
1000 if (params->tmpl && params->tmpl_len) {
1001 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1002 if (!new)
1003 return -ENOMEM;
1004 new->len = params->tmpl_len;
1005 memcpy(new->data, params->tmpl, params->tmpl_len);
1006 rcu_assign_pointer(link->u.ap.fils_discovery, new);
1007 } else {
1008 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1009 }
1010
1011 *changed |= BSS_CHANGED_FILS_DISCOVERY;
1012 return 0;
1013 }
1014
1015 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)1016 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
1017 struct cfg80211_unsol_bcast_probe_resp *params,
1018 struct ieee80211_link_data *link,
1019 struct ieee80211_bss_conf *link_conf,
1020 u64 *changed)
1021 {
1022 struct unsol_bcast_probe_resp_data *new, *old = NULL;
1023
1024 if (!params->update)
1025 return 0;
1026
1027 link_conf->unsol_bcast_probe_resp_interval = params->interval;
1028
1029 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
1030 if (old)
1031 kfree_rcu(old, rcu_head);
1032
1033 if (params->tmpl && params->tmpl_len) {
1034 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1035 if (!new)
1036 return -ENOMEM;
1037 new->len = params->tmpl_len;
1038 memcpy(new->data, params->tmpl, params->tmpl_len);
1039 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
1040 } else {
1041 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1042 }
1043
1044 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1045 return 0;
1046 }
1047
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)1048 static int ieee80211_set_ftm_responder_params(
1049 struct ieee80211_sub_if_data *sdata,
1050 const u8 *lci, size_t lci_len,
1051 const u8 *civicloc, size_t civicloc_len,
1052 struct ieee80211_bss_conf *link_conf)
1053 {
1054 struct ieee80211_ftm_responder_params *new, *old;
1055 u8 *pos;
1056 int len;
1057
1058 if (!lci_len && !civicloc_len)
1059 return 0;
1060
1061 old = link_conf->ftmr_params;
1062 len = lci_len + civicloc_len;
1063
1064 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
1065 if (!new)
1066 return -ENOMEM;
1067
1068 pos = (u8 *)(new + 1);
1069 if (lci_len) {
1070 new->lci_len = lci_len;
1071 new->lci = pos;
1072 memcpy(pos, lci, lci_len);
1073 pos += lci_len;
1074 }
1075
1076 if (civicloc_len) {
1077 new->civicloc_len = civicloc_len;
1078 new->civicloc = pos;
1079 memcpy(pos, civicloc, civicloc_len);
1080 pos += civicloc_len;
1081 }
1082
1083 link_conf->ftmr_params = new;
1084 kfree(old);
1085
1086 return 0;
1087 }
1088
1089 static int
ieee80211_copy_mbssid_beacon(u8 * pos,struct cfg80211_mbssid_elems * dst,struct cfg80211_mbssid_elems * src)1090 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
1091 struct cfg80211_mbssid_elems *src)
1092 {
1093 int i, offset = 0;
1094
1095 dst->cnt = src->cnt;
1096 for (i = 0; i < src->cnt; i++) {
1097 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1098 dst->elem[i].len = src->elem[i].len;
1099 dst->elem[i].data = pos + offset;
1100 offset += dst->elem[i].len;
1101 }
1102
1103 return offset;
1104 }
1105
1106 static int
ieee80211_copy_rnr_beacon(u8 * pos,struct cfg80211_rnr_elems * dst,struct cfg80211_rnr_elems * src)1107 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst,
1108 struct cfg80211_rnr_elems *src)
1109 {
1110 int i, offset = 0;
1111
1112 for (i = 0; i < src->cnt; i++) {
1113 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1114 dst->elem[i].len = src->elem[i].len;
1115 dst->elem[i].data = pos + offset;
1116 offset += dst->elem[i].len;
1117 }
1118 dst->cnt = src->cnt;
1119
1120 return offset;
1121 }
1122
1123 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)1124 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1125 struct ieee80211_link_data *link,
1126 struct cfg80211_beacon_data *params,
1127 const struct ieee80211_csa_settings *csa,
1128 const struct ieee80211_color_change_settings *cca,
1129 u64 *changed)
1130 {
1131 struct cfg80211_mbssid_elems *mbssid = NULL;
1132 struct cfg80211_rnr_elems *rnr = NULL;
1133 struct beacon_data *new, *old;
1134 int new_head_len, new_tail_len;
1135 int size, err;
1136 u64 _changed = BSS_CHANGED_BEACON;
1137 struct ieee80211_bss_conf *link_conf = link->conf;
1138
1139 old = sdata_dereference(link->u.ap.beacon, sdata);
1140
1141 /* Need to have a beacon head if we don't have one yet */
1142 if (!params->head && !old)
1143 return -EINVAL;
1144
1145 /* new or old head? */
1146 if (params->head)
1147 new_head_len = params->head_len;
1148 else
1149 new_head_len = old->head_len;
1150
1151 /* new or old tail? */
1152 if (params->tail || !old)
1153 /* params->tail_len will be zero for !params->tail */
1154 new_tail_len = params->tail_len;
1155 else
1156 new_tail_len = old->tail_len;
1157
1158 size = sizeof(*new) + new_head_len + new_tail_len;
1159
1160 /* new or old multiple BSSID elements? */
1161 if (params->mbssid_ies) {
1162 mbssid = params->mbssid_ies;
1163 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1164 if (params->rnr_ies) {
1165 rnr = params->rnr_ies;
1166 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1167 }
1168 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1169 mbssid->cnt);
1170 } else if (old && old->mbssid_ies) {
1171 mbssid = old->mbssid_ies;
1172 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1173 if (old && old->rnr_ies) {
1174 rnr = old->rnr_ies;
1175 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1176 }
1177 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1178 mbssid->cnt);
1179 }
1180
1181 new = kzalloc(size, GFP_KERNEL);
1182 if (!new)
1183 return -ENOMEM;
1184
1185 /* start filling the new info now */
1186
1187 /*
1188 * pointers go into the block we allocated,
1189 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies
1190 */
1191 new->head = ((u8 *) new) + sizeof(*new);
1192 new->tail = new->head + new_head_len;
1193 new->head_len = new_head_len;
1194 new->tail_len = new_tail_len;
1195 /* copy in optional mbssid_ies */
1196 if (mbssid) {
1197 u8 *pos = new->tail + new->tail_len;
1198
1199 new->mbssid_ies = (void *)pos;
1200 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1201 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies,
1202 mbssid);
1203 if (rnr) {
1204 new->rnr_ies = (void *)pos;
1205 pos += struct_size(new->rnr_ies, elem, rnr->cnt);
1206 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr);
1207 }
1208 /* update bssid_indicator */
1209 link_conf->bssid_indicator =
1210 ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1211 }
1212
1213 if (csa) {
1214 new->cntdwn_current_counter = csa->count;
1215 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1216 csa->n_counter_offsets_beacon *
1217 sizeof(new->cntdwn_counter_offsets[0]));
1218 } else if (cca) {
1219 new->cntdwn_current_counter = cca->count;
1220 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1221 }
1222
1223 /* copy in head */
1224 if (params->head)
1225 memcpy(new->head, params->head, new_head_len);
1226 else
1227 memcpy(new->head, old->head, new_head_len);
1228
1229 /* copy in optional tail */
1230 if (params->tail)
1231 memcpy(new->tail, params->tail, new_tail_len);
1232 else
1233 if (old)
1234 memcpy(new->tail, old->tail, new_tail_len);
1235
1236 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1237 params->probe_resp_len, csa, cca, link);
1238 if (err < 0) {
1239 kfree(new);
1240 return err;
1241 }
1242 if (err == 0)
1243 _changed |= BSS_CHANGED_AP_PROBE_RESP;
1244
1245 if (params->ftm_responder != -1) {
1246 link_conf->ftm_responder = params->ftm_responder;
1247 err = ieee80211_set_ftm_responder_params(sdata,
1248 params->lci,
1249 params->lci_len,
1250 params->civicloc,
1251 params->civicloc_len,
1252 link_conf);
1253
1254 if (err < 0) {
1255 kfree(new);
1256 return err;
1257 }
1258
1259 _changed |= BSS_CHANGED_FTM_RESPONDER;
1260 }
1261
1262 rcu_assign_pointer(link->u.ap.beacon, new);
1263 sdata->u.ap.active = true;
1264
1265 if (old)
1266 kfree_rcu(old, rcu_head);
1267
1268 *changed |= _changed;
1269 return 0;
1270 }
1271
ieee80211_num_beaconing_links(struct ieee80211_sub_if_data * sdata)1272 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata)
1273 {
1274 struct ieee80211_link_data *link;
1275 u8 link_id, num = 0;
1276
1277 if (sdata->vif.type != NL80211_IFTYPE_AP &&
1278 sdata->vif.type != NL80211_IFTYPE_P2P_GO)
1279 return num;
1280
1281 if (!sdata->vif.valid_links)
1282 return num;
1283
1284 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
1285 link = sdata_dereference(sdata->link[link_id], sdata);
1286 if (!link)
1287 continue;
1288
1289 if (sdata_dereference(link->u.ap.beacon, sdata))
1290 num++;
1291 }
1292
1293 return num;
1294 }
1295
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1296 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1297 struct cfg80211_ap_settings *params)
1298 {
1299 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1300 struct ieee80211_local *local = sdata->local;
1301 struct beacon_data *old;
1302 struct ieee80211_sub_if_data *vlan;
1303 u64 changed = BSS_CHANGED_BEACON_INT |
1304 BSS_CHANGED_BEACON_ENABLED |
1305 BSS_CHANGED_BEACON |
1306 BSS_CHANGED_P2P_PS |
1307 BSS_CHANGED_TXPOWER |
1308 BSS_CHANGED_TWT;
1309 int i, err;
1310 int prev_beacon_int;
1311 unsigned int link_id = params->beacon.link_id;
1312 struct ieee80211_link_data *link;
1313 struct ieee80211_bss_conf *link_conf;
1314 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
1315
1316 lockdep_assert_wiphy(local->hw.wiphy);
1317
1318 link = sdata_dereference(sdata->link[link_id], sdata);
1319 if (!link)
1320 return -ENOLINK;
1321
1322 link_conf = link->conf;
1323
1324 old = sdata_dereference(link->u.ap.beacon, sdata);
1325 if (old)
1326 return -EALREADY;
1327
1328 link->smps_mode = IEEE80211_SMPS_OFF;
1329
1330 link->needed_rx_chains = sdata->local->rx_chains;
1331
1332 prev_beacon_int = link_conf->beacon_int;
1333 link_conf->beacon_int = params->beacon_interval;
1334
1335 if (params->ht_cap)
1336 link_conf->ht_ldpc =
1337 params->ht_cap->cap_info &
1338 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING);
1339
1340 if (params->vht_cap) {
1341 link_conf->vht_ldpc =
1342 params->vht_cap->vht_cap_info &
1343 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC);
1344 link_conf->vht_su_beamformer =
1345 params->vht_cap->vht_cap_info &
1346 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
1347 link_conf->vht_su_beamformee =
1348 params->vht_cap->vht_cap_info &
1349 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
1350 link_conf->vht_mu_beamformer =
1351 params->vht_cap->vht_cap_info &
1352 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
1353 link_conf->vht_mu_beamformee =
1354 params->vht_cap->vht_cap_info &
1355 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
1356 }
1357
1358 if (params->he_cap && params->he_oper) {
1359 link_conf->he_support = true;
1360 link_conf->htc_trig_based_pkt_ext =
1361 le32_get_bits(params->he_oper->he_oper_params,
1362 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1363 link_conf->frame_time_rts_th =
1364 le32_get_bits(params->he_oper->he_oper_params,
1365 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1366 changed |= BSS_CHANGED_HE_OBSS_PD;
1367
1368 if (params->beacon.he_bss_color.enabled)
1369 changed |= BSS_CHANGED_HE_BSS_COLOR;
1370 }
1371
1372 if (params->he_cap) {
1373 link_conf->he_ldpc =
1374 params->he_cap->phy_cap_info[1] &
1375 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
1376 link_conf->he_su_beamformer =
1377 params->he_cap->phy_cap_info[3] &
1378 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
1379 link_conf->he_su_beamformee =
1380 params->he_cap->phy_cap_info[4] &
1381 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
1382 link_conf->he_mu_beamformer =
1383 params->he_cap->phy_cap_info[4] &
1384 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
1385 link_conf->he_full_ul_mumimo =
1386 params->he_cap->phy_cap_info[2] &
1387 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
1388 }
1389
1390 if (params->eht_cap) {
1391 if (!link_conf->he_support)
1392 return -EOPNOTSUPP;
1393
1394 link_conf->eht_support = true;
1395
1396 link_conf->eht_su_beamformer =
1397 params->eht_cap->fixed.phy_cap_info[0] &
1398 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER;
1399 link_conf->eht_su_beamformee =
1400 params->eht_cap->fixed.phy_cap_info[0] &
1401 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
1402 link_conf->eht_mu_beamformer =
1403 params->eht_cap->fixed.phy_cap_info[7] &
1404 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
1405 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
1406 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ);
1407 link_conf->eht_80mhz_full_bw_ul_mumimo =
1408 params->eht_cap->fixed.phy_cap_info[7] &
1409 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
1410 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
1411 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ);
1412 } else {
1413 link_conf->eht_su_beamformer = false;
1414 link_conf->eht_su_beamformee = false;
1415 link_conf->eht_mu_beamformer = false;
1416 }
1417
1418 if (sdata->vif.type == NL80211_IFTYPE_AP &&
1419 params->mbssid_config.tx_wdev) {
1420 err = ieee80211_set_ap_mbssid_options(sdata,
1421 ¶ms->mbssid_config,
1422 link_conf);
1423 if (err)
1424 return err;
1425 }
1426
1427 err = ieee80211_link_use_channel(link, &chanreq,
1428 IEEE80211_CHANCTX_SHARED);
1429 if (!err)
1430 ieee80211_link_copy_chanctx_to_vlans(link, false);
1431 if (err) {
1432 link_conf->beacon_int = prev_beacon_int;
1433 return err;
1434 }
1435
1436 /*
1437 * Apply control port protocol, this allows us to
1438 * not encrypt dynamic WEP control frames.
1439 */
1440 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1441 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1442 sdata->control_port_over_nl80211 =
1443 params->crypto.control_port_over_nl80211;
1444 sdata->control_port_no_preauth =
1445 params->crypto.control_port_no_preauth;
1446
1447 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1448 vlan->control_port_protocol =
1449 params->crypto.control_port_ethertype;
1450 vlan->control_port_no_encrypt =
1451 params->crypto.control_port_no_encrypt;
1452 vlan->control_port_over_nl80211 =
1453 params->crypto.control_port_over_nl80211;
1454 vlan->control_port_no_preauth =
1455 params->crypto.control_port_no_preauth;
1456 }
1457
1458 link_conf->dtim_period = params->dtim_period;
1459 link_conf->enable_beacon = true;
1460 link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1461 link_conf->twt_responder = params->twt_responder;
1462 link_conf->he_obss_pd = params->he_obss_pd;
1463 link_conf->he_bss_color = params->beacon.he_bss_color;
1464 sdata->vif.cfg.s1g = params->chandef.chan->band ==
1465 NL80211_BAND_S1GHZ;
1466
1467 sdata->vif.cfg.ssid_len = params->ssid_len;
1468 if (params->ssid_len)
1469 memcpy(sdata->vif.cfg.ssid, params->ssid,
1470 params->ssid_len);
1471 link_conf->hidden_ssid =
1472 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1473
1474 memset(&link_conf->p2p_noa_attr, 0,
1475 sizeof(link_conf->p2p_noa_attr));
1476 link_conf->p2p_noa_attr.oppps_ctwindow =
1477 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1478 if (params->p2p_opp_ps)
1479 link_conf->p2p_noa_attr.oppps_ctwindow |=
1480 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1481
1482 sdata->beacon_rate_set = false;
1483 if (wiphy_ext_feature_isset(local->hw.wiphy,
1484 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1485 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1486 sdata->beacon_rateidx_mask[i] =
1487 params->beacon_rate.control[i].legacy;
1488 if (sdata->beacon_rateidx_mask[i])
1489 sdata->beacon_rate_set = true;
1490 }
1491 }
1492
1493 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1494 link_conf->beacon_tx_rate = params->beacon_rate;
1495
1496 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL,
1497 &changed);
1498 if (err < 0)
1499 goto error;
1500
1501 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery,
1502 link, link_conf, &changed);
1503 if (err < 0)
1504 goto error;
1505
1506 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1507 ¶ms->unsol_bcast_probe_resp,
1508 link, link_conf, &changed);
1509 if (err < 0)
1510 goto error;
1511
1512 err = drv_start_ap(sdata->local, sdata, link_conf);
1513 if (err) {
1514 old = sdata_dereference(link->u.ap.beacon, sdata);
1515
1516 if (old)
1517 kfree_rcu(old, rcu_head);
1518 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1519
1520 if (ieee80211_num_beaconing_links(sdata) == 0)
1521 sdata->u.ap.active = false;
1522
1523 goto error;
1524 }
1525
1526 ieee80211_recalc_dtim(local, sdata);
1527 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1528 ieee80211_link_info_change_notify(sdata, link, changed);
1529
1530 if (ieee80211_num_beaconing_links(sdata) <= 1)
1531 netif_carrier_on(dev);
1532
1533 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1534 netif_carrier_on(vlan->dev);
1535
1536 return 0;
1537
1538 error:
1539 ieee80211_link_release_channel(link);
1540
1541 return err;
1542 }
1543
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_update * params)1544 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1545 struct cfg80211_ap_update *params)
1546
1547 {
1548 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1549 struct ieee80211_link_data *link;
1550 struct cfg80211_beacon_data *beacon = ¶ms->beacon;
1551 struct beacon_data *old;
1552 int err;
1553 struct ieee80211_bss_conf *link_conf;
1554 u64 changed = 0;
1555
1556 lockdep_assert_wiphy(wiphy);
1557
1558 link = sdata_dereference(sdata->link[beacon->link_id], sdata);
1559 if (!link)
1560 return -ENOLINK;
1561
1562 link_conf = link->conf;
1563
1564 /* don't allow changing the beacon while a countdown is in place - offset
1565 * of channel switch counter may change
1566 */
1567 if (link_conf->csa_active || link_conf->color_change_active)
1568 return -EBUSY;
1569
1570 old = sdata_dereference(link->u.ap.beacon, sdata);
1571 if (!old)
1572 return -ENOENT;
1573
1574 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL,
1575 &changed);
1576 if (err < 0)
1577 return err;
1578
1579 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery,
1580 link, link_conf, &changed);
1581 if (err < 0)
1582 return err;
1583
1584 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1585 ¶ms->unsol_bcast_probe_resp,
1586 link, link_conf, &changed);
1587 if (err < 0)
1588 return err;
1589
1590 if (beacon->he_bss_color_valid &&
1591 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1592 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled;
1593 changed |= BSS_CHANGED_HE_BSS_COLOR;
1594 }
1595
1596 ieee80211_link_info_change_notify(sdata, link, changed);
1597 return 0;
1598 }
1599
ieee80211_free_next_beacon(struct ieee80211_link_data * link)1600 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1601 {
1602 if (!link->u.ap.next_beacon)
1603 return;
1604
1605 kfree(link->u.ap.next_beacon->mbssid_ies);
1606 kfree(link->u.ap.next_beacon->rnr_ies);
1607 kfree(link->u.ap.next_beacon);
1608 link->u.ap.next_beacon = NULL;
1609 }
1610
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)1611 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1612 unsigned int link_id)
1613 {
1614 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1615 struct ieee80211_sub_if_data *vlan;
1616 struct ieee80211_local *local = sdata->local;
1617 struct beacon_data *old_beacon;
1618 struct probe_resp *old_probe_resp;
1619 struct fils_discovery_data *old_fils_discovery;
1620 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1621 struct cfg80211_chan_def chandef;
1622 struct ieee80211_link_data *link =
1623 sdata_dereference(sdata->link[link_id], sdata);
1624 struct ieee80211_bss_conf *link_conf = link->conf;
1625 LIST_HEAD(keys);
1626
1627 lockdep_assert_wiphy(local->hw.wiphy);
1628
1629 old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1630 if (!old_beacon)
1631 return -ENOENT;
1632 old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1633 sdata);
1634 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1635 sdata);
1636 old_unsol_bcast_probe_resp =
1637 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1638 sdata);
1639
1640 /* abort any running channel switch or color change */
1641 link_conf->csa_active = false;
1642 link_conf->color_change_active = false;
1643 ieee80211_vif_unblock_queues_csa(sdata);
1644
1645 ieee80211_free_next_beacon(link);
1646
1647 /* turn off carrier for this interface and dependent VLANs */
1648 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1649 netif_carrier_off(vlan->dev);
1650
1651 if (ieee80211_num_beaconing_links(sdata) <= 1) {
1652 netif_carrier_off(dev);
1653 sdata->u.ap.active = false;
1654 }
1655
1656 /* remove beacon and probe response */
1657 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1658 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1659 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1660 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1661 kfree_rcu(old_beacon, rcu_head);
1662 if (old_probe_resp)
1663 kfree_rcu(old_probe_resp, rcu_head);
1664 if (old_fils_discovery)
1665 kfree_rcu(old_fils_discovery, rcu_head);
1666 if (old_unsol_bcast_probe_resp)
1667 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1668
1669 kfree(link_conf->ftmr_params);
1670 link_conf->ftmr_params = NULL;
1671
1672 sdata->vif.mbssid_tx_vif = NULL;
1673 link_conf->bssid_index = 0;
1674 link_conf->nontransmitted = false;
1675 link_conf->ema_ap = false;
1676 link_conf->bssid_indicator = 0;
1677
1678 __sta_info_flush(sdata, true, link_id, NULL);
1679
1680 ieee80211_remove_link_keys(link, &keys);
1681 if (!list_empty(&keys)) {
1682 synchronize_net();
1683 ieee80211_free_key_list(local, &keys);
1684 }
1685
1686 link_conf->enable_beacon = false;
1687 sdata->beacon_rate_set = false;
1688 sdata->vif.cfg.ssid_len = 0;
1689 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1690 ieee80211_link_info_change_notify(sdata, link,
1691 BSS_CHANGED_BEACON_ENABLED);
1692
1693 if (sdata->wdev.links[link_id].cac_started) {
1694 chandef = link_conf->chanreq.oper;
1695 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
1696 cfg80211_cac_event(sdata->dev, &chandef,
1697 NL80211_RADAR_CAC_ABORTED,
1698 GFP_KERNEL, link_id);
1699 }
1700
1701 drv_stop_ap(sdata->local, sdata, link_conf);
1702
1703 /* free all potentially still buffered bcast frames */
1704 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1705 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1706
1707 ieee80211_link_copy_chanctx_to_vlans(link, true);
1708 ieee80211_link_release_channel(link);
1709
1710 return 0;
1711 }
1712
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1713 static int sta_apply_auth_flags(struct ieee80211_local *local,
1714 struct sta_info *sta,
1715 u32 mask, u32 set)
1716 {
1717 int ret;
1718
1719 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1720 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1721 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1722 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1723 if (ret)
1724 return ret;
1725 }
1726
1727 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1728 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1729 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1730 /*
1731 * When peer becomes associated, init rate control as
1732 * well. Some drivers require rate control initialized
1733 * before drv_sta_state() is called.
1734 */
1735 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1736 rate_control_rate_init_all_links(sta);
1737
1738 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1739 if (ret)
1740 return ret;
1741 }
1742
1743 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1744 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1745 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1746 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1747 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1748 else
1749 ret = 0;
1750 if (ret)
1751 return ret;
1752 }
1753
1754 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1755 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1756 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1757 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1758 if (ret)
1759 return ret;
1760 }
1761
1762 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1763 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1764 test_sta_flag(sta, WLAN_STA_AUTH)) {
1765 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1766 if (ret)
1767 return ret;
1768 }
1769
1770 return 0;
1771 }
1772
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1773 static void sta_apply_mesh_params(struct ieee80211_local *local,
1774 struct sta_info *sta,
1775 struct station_parameters *params)
1776 {
1777 #ifdef CONFIG_MAC80211_MESH
1778 struct ieee80211_sub_if_data *sdata = sta->sdata;
1779 u64 changed = 0;
1780
1781 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1782 switch (params->plink_state) {
1783 case NL80211_PLINK_ESTAB:
1784 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1785 changed = mesh_plink_inc_estab_count(sdata);
1786 sta->mesh->plink_state = params->plink_state;
1787 sta->mesh->aid = params->peer_aid;
1788
1789 ieee80211_mps_sta_status_update(sta);
1790 changed |= ieee80211_mps_set_sta_local_pm(sta,
1791 sdata->u.mesh.mshcfg.power_mode);
1792
1793 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1794 /* init at low value */
1795 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1796
1797 break;
1798 case NL80211_PLINK_LISTEN:
1799 case NL80211_PLINK_BLOCKED:
1800 case NL80211_PLINK_OPN_SNT:
1801 case NL80211_PLINK_OPN_RCVD:
1802 case NL80211_PLINK_CNF_RCVD:
1803 case NL80211_PLINK_HOLDING:
1804 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1805 changed = mesh_plink_dec_estab_count(sdata);
1806 sta->mesh->plink_state = params->plink_state;
1807
1808 ieee80211_mps_sta_status_update(sta);
1809 changed |= ieee80211_mps_set_sta_local_pm(sta,
1810 NL80211_MESH_POWER_UNKNOWN);
1811 break;
1812 default:
1813 /* nothing */
1814 break;
1815 }
1816 }
1817
1818 switch (params->plink_action) {
1819 case NL80211_PLINK_ACTION_NO_ACTION:
1820 /* nothing */
1821 break;
1822 case NL80211_PLINK_ACTION_OPEN:
1823 changed |= mesh_plink_open(sta);
1824 break;
1825 case NL80211_PLINK_ACTION_BLOCK:
1826 changed |= mesh_plink_block(sta);
1827 break;
1828 }
1829
1830 if (params->local_pm)
1831 changed |= ieee80211_mps_set_sta_local_pm(sta,
1832 params->local_pm);
1833
1834 ieee80211_mbss_info_change_notify(sdata, changed);
1835 #endif
1836 }
1837
1838 enum sta_link_apply_mode {
1839 STA_LINK_MODE_NEW,
1840 STA_LINK_MODE_STA_MODIFY,
1841 STA_LINK_MODE_LINK_MODIFY,
1842 };
1843
sta_link_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,enum sta_link_apply_mode mode,struct link_station_parameters * params)1844 static int sta_link_apply_parameters(struct ieee80211_local *local,
1845 struct sta_info *sta,
1846 enum sta_link_apply_mode mode,
1847 struct link_station_parameters *params)
1848 {
1849 struct ieee80211_supported_band *sband;
1850 struct ieee80211_sub_if_data *sdata = sta->sdata;
1851 u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1852 struct ieee80211_link_data *link =
1853 sdata_dereference(sdata->link[link_id], sdata);
1854 struct link_sta_info *link_sta =
1855 rcu_dereference_protected(sta->link[link_id],
1856 lockdep_is_held(&local->hw.wiphy->mtx));
1857 bool changes = params->link_mac ||
1858 params->txpwr_set ||
1859 params->supported_rates_len ||
1860 params->ht_capa ||
1861 params->vht_capa ||
1862 params->he_capa ||
1863 params->eht_capa ||
1864 params->opmode_notif_used;
1865
1866 switch (mode) {
1867 case STA_LINK_MODE_NEW:
1868 if (!params->link_mac)
1869 return -EINVAL;
1870 break;
1871 case STA_LINK_MODE_LINK_MODIFY:
1872 break;
1873 case STA_LINK_MODE_STA_MODIFY:
1874 if (params->link_id >= 0)
1875 break;
1876 if (!changes)
1877 return 0;
1878 break;
1879 }
1880
1881 if (!link || !link_sta)
1882 return -EINVAL;
1883
1884 sband = ieee80211_get_link_sband(link);
1885 if (!sband)
1886 return -EINVAL;
1887
1888 if (params->link_mac) {
1889 if (mode == STA_LINK_MODE_NEW) {
1890 memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1891 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1892 } else if (!ether_addr_equal(link_sta->addr,
1893 params->link_mac)) {
1894 return -EINVAL;
1895 }
1896 }
1897
1898 if (params->txpwr_set) {
1899 int ret;
1900
1901 link_sta->pub->txpwr.type = params->txpwr.type;
1902 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1903 link_sta->pub->txpwr.power = params->txpwr.power;
1904 ret = drv_sta_set_txpwr(local, sdata, sta);
1905 if (ret)
1906 return ret;
1907 }
1908
1909 if (params->supported_rates &&
1910 params->supported_rates_len &&
1911 !ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
1912 sband, params->supported_rates,
1913 params->supported_rates_len,
1914 &link_sta->pub->supp_rates[sband->band]))
1915 return -EINVAL;
1916
1917 if (params->ht_capa)
1918 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1919 params->ht_capa, link_sta);
1920
1921 /* VHT can override some HT caps such as the A-MSDU max length */
1922 if (params->vht_capa)
1923 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1924 params->vht_capa, NULL,
1925 link_sta);
1926
1927 if (params->he_capa)
1928 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1929 (void *)params->he_capa,
1930 params->he_capa_len,
1931 (void *)params->he_6ghz_capa,
1932 link_sta);
1933
1934 if (params->he_capa && params->eht_capa)
1935 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1936 (u8 *)params->he_capa,
1937 params->he_capa_len,
1938 params->eht_capa,
1939 params->eht_capa_len,
1940 link_sta);
1941
1942 ieee80211_sta_init_nss(link_sta);
1943
1944 if (params->opmode_notif_used) {
1945 /* returned value is only needed for rc update, but the
1946 * rc isn't initialized here yet, so ignore it
1947 */
1948 __ieee80211_vht_handle_opmode(sdata, link_sta,
1949 params->opmode_notif,
1950 sband->band);
1951 }
1952
1953 return 0;
1954 }
1955
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1956 static int sta_apply_parameters(struct ieee80211_local *local,
1957 struct sta_info *sta,
1958 struct station_parameters *params)
1959 {
1960 struct ieee80211_sub_if_data *sdata = sta->sdata;
1961 u32 mask, set;
1962 int ret = 0;
1963
1964 mask = params->sta_flags_mask;
1965 set = params->sta_flags_set;
1966
1967 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1968 /*
1969 * In mesh mode, ASSOCIATED isn't part of the nl80211
1970 * API but must follow AUTHENTICATED for driver state.
1971 */
1972 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1973 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1974 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1975 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1976 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1977 /*
1978 * TDLS -- everything follows authorized, but
1979 * only becoming authorized is possible, not
1980 * going back
1981 */
1982 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1983 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1984 BIT(NL80211_STA_FLAG_ASSOCIATED);
1985 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1986 BIT(NL80211_STA_FLAG_ASSOCIATED);
1987 }
1988 }
1989
1990 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1991 local->hw.queues >= IEEE80211_NUM_ACS)
1992 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1993
1994 /* auth flags will be set later for TDLS,
1995 * and for unassociated stations that move to associated */
1996 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1997 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1998 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1999 ret = sta_apply_auth_flags(local, sta, mask, set);
2000 if (ret)
2001 return ret;
2002 }
2003
2004 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
2005 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
2006 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
2007 else
2008 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
2009 }
2010
2011 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
2012 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
2013 if (set & BIT(NL80211_STA_FLAG_MFP))
2014 set_sta_flag(sta, WLAN_STA_MFP);
2015 else
2016 clear_sta_flag(sta, WLAN_STA_MFP);
2017 }
2018
2019 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
2020 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2021 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
2022 else
2023 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
2024 }
2025
2026 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU))
2027 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU);
2028
2029 /* mark TDLS channel switch support, if the AP allows it */
2030 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2031 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
2032 params->ext_capab_len >= 4 &&
2033 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
2034 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
2035
2036 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2037 !sdata->u.mgd.tdls_wider_bw_prohibited &&
2038 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
2039 params->ext_capab_len >= 8 &&
2040 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
2041 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
2042
2043 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
2044 sta->sta.uapsd_queues = params->uapsd_queues;
2045 sta->sta.max_sp = params->max_sp;
2046 }
2047
2048 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
2049 params->ext_capab_len);
2050
2051 /*
2052 * cfg80211 validates this (1-2007) and allows setting the AID
2053 * only when creating a new station entry
2054 */
2055 if (params->aid)
2056 sta->sta.aid = params->aid;
2057
2058 /*
2059 * Some of the following updates would be racy if called on an
2060 * existing station, via ieee80211_change_station(). However,
2061 * all such changes are rejected by cfg80211 except for updates
2062 * changing the supported rates on an existing but not yet used
2063 * TDLS peer.
2064 */
2065
2066 if (params->listen_interval >= 0)
2067 sta->listen_interval = params->listen_interval;
2068
2069 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY,
2070 ¶ms->link_sta_params);
2071 if (ret)
2072 return ret;
2073
2074 if (params->support_p2p_ps >= 0)
2075 sta->sta.support_p2p_ps = params->support_p2p_ps;
2076
2077 if (ieee80211_vif_is_mesh(&sdata->vif))
2078 sta_apply_mesh_params(local, sta, params);
2079
2080 if (params->airtime_weight)
2081 sta->airtime_weight = params->airtime_weight;
2082
2083 /* set the STA state after all sta info from usermode has been set */
2084 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
2085 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
2086 ret = sta_apply_auth_flags(local, sta, mask, set);
2087 if (ret)
2088 return ret;
2089 }
2090
2091 /* Mark the STA as MLO if MLD MAC address is available */
2092 if (params->link_sta_params.mld_mac)
2093 sta->sta.mlo = true;
2094
2095 return 0;
2096 }
2097
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2098 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2099 const u8 *mac,
2100 struct station_parameters *params)
2101 {
2102 struct ieee80211_local *local = wiphy_priv(wiphy);
2103 struct sta_info *sta;
2104 struct ieee80211_sub_if_data *sdata;
2105 int err;
2106
2107 lockdep_assert_wiphy(local->hw.wiphy);
2108
2109 if (params->vlan) {
2110 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2111
2112 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2113 sdata->vif.type != NL80211_IFTYPE_AP)
2114 return -EINVAL;
2115 } else
2116 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2117
2118 if (ether_addr_equal(mac, sdata->vif.addr))
2119 return -EINVAL;
2120
2121 if (!is_valid_ether_addr(mac))
2122 return -EINVAL;
2123
2124 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
2125 sdata->vif.type == NL80211_IFTYPE_STATION &&
2126 !sdata->u.mgd.associated)
2127 return -EINVAL;
2128
2129 /*
2130 * If we have a link ID, it can be a non-MLO station on an AP MLD,
2131 * but we need to have a link_mac in that case as well, so use the
2132 * STA's MAC address in that case.
2133 */
2134 if (params->link_sta_params.link_id >= 0)
2135 sta = sta_info_alloc_with_link(sdata, mac,
2136 params->link_sta_params.link_id,
2137 params->link_sta_params.link_mac ?: mac,
2138 GFP_KERNEL);
2139 else
2140 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
2141
2142 if (!sta)
2143 return -ENOMEM;
2144
2145 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2146 sta->sta.tdls = true;
2147
2148 /* Though the mutex is not needed here (since the station is not
2149 * visible yet), sta_apply_parameters (and inner functions) require
2150 * the mutex due to other paths.
2151 */
2152 err = sta_apply_parameters(local, sta, params);
2153 if (err) {
2154 sta_info_free(local, sta);
2155 return err;
2156 }
2157
2158 /*
2159 * for TDLS and for unassociated station, rate control should be
2160 * initialized only when rates are known and station is marked
2161 * authorized/associated
2162 */
2163 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2164 test_sta_flag(sta, WLAN_STA_ASSOC))
2165 rate_control_rate_init_all_links(sta);
2166
2167 return sta_info_insert(sta);
2168 }
2169
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)2170 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2171 struct station_del_parameters *params)
2172 {
2173 struct ieee80211_sub_if_data *sdata;
2174
2175 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2176
2177 if (params->mac)
2178 return sta_info_destroy_addr_bss(sdata, params->mac);
2179
2180 sta_info_flush(sdata, params->link_id);
2181 return 0;
2182 }
2183
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2184 static int ieee80211_change_station(struct wiphy *wiphy,
2185 struct net_device *dev, const u8 *mac,
2186 struct station_parameters *params)
2187 {
2188 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2189 struct ieee80211_local *local = wiphy_priv(wiphy);
2190 struct sta_info *sta;
2191 struct ieee80211_sub_if_data *vlansdata;
2192 enum cfg80211_station_type statype;
2193 int err;
2194
2195 lockdep_assert_wiphy(local->hw.wiphy);
2196
2197 sta = sta_info_get_bss(sdata, mac);
2198 if (!sta)
2199 return -ENOENT;
2200
2201 switch (sdata->vif.type) {
2202 case NL80211_IFTYPE_MESH_POINT:
2203 if (sdata->u.mesh.user_mpm)
2204 statype = CFG80211_STA_MESH_PEER_USER;
2205 else
2206 statype = CFG80211_STA_MESH_PEER_KERNEL;
2207 break;
2208 case NL80211_IFTYPE_ADHOC:
2209 statype = CFG80211_STA_IBSS;
2210 break;
2211 case NL80211_IFTYPE_STATION:
2212 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2213 statype = CFG80211_STA_AP_STA;
2214 break;
2215 }
2216 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2217 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2218 else
2219 statype = CFG80211_STA_TDLS_PEER_SETUP;
2220 break;
2221 case NL80211_IFTYPE_AP:
2222 case NL80211_IFTYPE_AP_VLAN:
2223 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2224 statype = CFG80211_STA_AP_CLIENT;
2225 else
2226 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2227 break;
2228 default:
2229 return -EOPNOTSUPP;
2230 }
2231
2232 err = cfg80211_check_station_change(wiphy, params, statype);
2233 if (err)
2234 return err;
2235
2236 if (params->vlan && params->vlan != sta->sdata->dev) {
2237 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2238
2239 if (params->vlan->ieee80211_ptr->use_4addr) {
2240 if (vlansdata->u.vlan.sta)
2241 return -EBUSY;
2242
2243 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2244 __ieee80211_check_fast_rx_iface(vlansdata);
2245 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2246 }
2247
2248 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2249 sta->sdata->u.vlan.sta)
2250 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2251
2252 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2253 ieee80211_vif_dec_num_mcast(sta->sdata);
2254
2255 sta->sdata = vlansdata;
2256 ieee80211_check_fast_rx(sta);
2257 ieee80211_check_fast_xmit(sta);
2258
2259 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2260 ieee80211_vif_inc_num_mcast(sta->sdata);
2261 cfg80211_send_layer2_update(sta->sdata->dev,
2262 sta->sta.addr);
2263 }
2264 }
2265
2266 err = sta_apply_parameters(local, sta, params);
2267 if (err)
2268 return err;
2269
2270 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2271 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2272 ieee80211_recalc_ps(local);
2273 ieee80211_recalc_ps_vif(sdata);
2274 }
2275
2276 return 0;
2277 }
2278
2279 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2280 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2281 const u8 *dst, const u8 *next_hop)
2282 {
2283 struct ieee80211_sub_if_data *sdata;
2284 struct mesh_path *mpath;
2285 struct sta_info *sta;
2286
2287 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2288
2289 rcu_read_lock();
2290 sta = sta_info_get(sdata, next_hop);
2291 if (!sta) {
2292 rcu_read_unlock();
2293 return -ENOENT;
2294 }
2295
2296 mpath = mesh_path_add(sdata, dst);
2297 if (IS_ERR(mpath)) {
2298 rcu_read_unlock();
2299 return PTR_ERR(mpath);
2300 }
2301
2302 mesh_path_fix_nexthop(mpath, sta);
2303
2304 rcu_read_unlock();
2305 return 0;
2306 }
2307
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)2308 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2309 const u8 *dst)
2310 {
2311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2312
2313 if (dst)
2314 return mesh_path_del(sdata, dst);
2315
2316 mesh_path_flush_by_iface(sdata);
2317 return 0;
2318 }
2319
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2320 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2321 const u8 *dst, const u8 *next_hop)
2322 {
2323 struct ieee80211_sub_if_data *sdata;
2324 struct mesh_path *mpath;
2325 struct sta_info *sta;
2326
2327 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2328
2329 rcu_read_lock();
2330
2331 sta = sta_info_get(sdata, next_hop);
2332 if (!sta) {
2333 rcu_read_unlock();
2334 return -ENOENT;
2335 }
2336
2337 mpath = mesh_path_lookup(sdata, dst);
2338 if (!mpath) {
2339 rcu_read_unlock();
2340 return -ENOENT;
2341 }
2342
2343 mesh_path_fix_nexthop(mpath, sta);
2344
2345 rcu_read_unlock();
2346 return 0;
2347 }
2348
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)2349 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2350 struct mpath_info *pinfo)
2351 {
2352 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2353
2354 if (next_hop_sta)
2355 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2356 else
2357 eth_zero_addr(next_hop);
2358
2359 memset(pinfo, 0, sizeof(*pinfo));
2360
2361 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2362
2363 pinfo->filled = MPATH_INFO_FRAME_QLEN |
2364 MPATH_INFO_SN |
2365 MPATH_INFO_METRIC |
2366 MPATH_INFO_EXPTIME |
2367 MPATH_INFO_DISCOVERY_TIMEOUT |
2368 MPATH_INFO_DISCOVERY_RETRIES |
2369 MPATH_INFO_FLAGS |
2370 MPATH_INFO_HOP_COUNT |
2371 MPATH_INFO_PATH_CHANGE;
2372
2373 pinfo->frame_qlen = mpath->frame_queue.qlen;
2374 pinfo->sn = mpath->sn;
2375 pinfo->metric = mpath->metric;
2376 if (time_before(jiffies, mpath->exp_time))
2377 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2378 pinfo->discovery_timeout =
2379 jiffies_to_msecs(mpath->discovery_timeout);
2380 pinfo->discovery_retries = mpath->discovery_retries;
2381 if (mpath->flags & MESH_PATH_ACTIVE)
2382 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2383 if (mpath->flags & MESH_PATH_RESOLVING)
2384 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2385 if (mpath->flags & MESH_PATH_SN_VALID)
2386 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2387 if (mpath->flags & MESH_PATH_FIXED)
2388 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2389 if (mpath->flags & MESH_PATH_RESOLVED)
2390 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2391 pinfo->hop_count = mpath->hop_count;
2392 pinfo->path_change_count = mpath->path_change_count;
2393 }
2394
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2395 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2396 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2397
2398 {
2399 struct ieee80211_sub_if_data *sdata;
2400 struct mesh_path *mpath;
2401
2402 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2403
2404 rcu_read_lock();
2405 mpath = mesh_path_lookup(sdata, dst);
2406 if (!mpath) {
2407 rcu_read_unlock();
2408 return -ENOENT;
2409 }
2410 memcpy(dst, mpath->dst, ETH_ALEN);
2411 mpath_set_pinfo(mpath, next_hop, pinfo);
2412 rcu_read_unlock();
2413 return 0;
2414 }
2415
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2416 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2417 int idx, u8 *dst, u8 *next_hop,
2418 struct mpath_info *pinfo)
2419 {
2420 struct ieee80211_sub_if_data *sdata;
2421 struct mesh_path *mpath;
2422
2423 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2424
2425 rcu_read_lock();
2426 mpath = mesh_path_lookup_by_idx(sdata, idx);
2427 if (!mpath) {
2428 rcu_read_unlock();
2429 return -ENOENT;
2430 }
2431 memcpy(dst, mpath->dst, ETH_ALEN);
2432 mpath_set_pinfo(mpath, next_hop, pinfo);
2433 rcu_read_unlock();
2434 return 0;
2435 }
2436
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2437 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2438 struct mpath_info *pinfo)
2439 {
2440 memset(pinfo, 0, sizeof(*pinfo));
2441 memcpy(mpp, mpath->mpp, ETH_ALEN);
2442
2443 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2444 }
2445
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2446 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2447 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2448
2449 {
2450 struct ieee80211_sub_if_data *sdata;
2451 struct mesh_path *mpath;
2452
2453 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2454
2455 rcu_read_lock();
2456 mpath = mpp_path_lookup(sdata, dst);
2457 if (!mpath) {
2458 rcu_read_unlock();
2459 return -ENOENT;
2460 }
2461 memcpy(dst, mpath->dst, ETH_ALEN);
2462 mpp_set_pinfo(mpath, mpp, pinfo);
2463 rcu_read_unlock();
2464 return 0;
2465 }
2466
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2467 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2468 int idx, u8 *dst, u8 *mpp,
2469 struct mpath_info *pinfo)
2470 {
2471 struct ieee80211_sub_if_data *sdata;
2472 struct mesh_path *mpath;
2473
2474 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475
2476 rcu_read_lock();
2477 mpath = mpp_path_lookup_by_idx(sdata, idx);
2478 if (!mpath) {
2479 rcu_read_unlock();
2480 return -ENOENT;
2481 }
2482 memcpy(dst, mpath->dst, ETH_ALEN);
2483 mpp_set_pinfo(mpath, mpp, pinfo);
2484 rcu_read_unlock();
2485 return 0;
2486 }
2487
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2488 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2489 struct net_device *dev,
2490 struct mesh_config *conf)
2491 {
2492 struct ieee80211_sub_if_data *sdata;
2493 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2494
2495 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2496 return 0;
2497 }
2498
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2499 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2500 {
2501 return (mask >> (parm-1)) & 0x1;
2502 }
2503
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2504 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2505 const struct mesh_setup *setup)
2506 {
2507 u8 *new_ie;
2508 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2509 struct ieee80211_sub_if_data, u.mesh);
2510 int i;
2511
2512 /* allocate information elements */
2513 new_ie = NULL;
2514
2515 if (setup->ie_len) {
2516 new_ie = kmemdup(setup->ie, setup->ie_len,
2517 GFP_KERNEL);
2518 if (!new_ie)
2519 return -ENOMEM;
2520 }
2521 ifmsh->ie_len = setup->ie_len;
2522 ifmsh->ie = new_ie;
2523
2524 /* now copy the rest of the setup parameters */
2525 ifmsh->mesh_id_len = setup->mesh_id_len;
2526 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2527 ifmsh->mesh_sp_id = setup->sync_method;
2528 ifmsh->mesh_pp_id = setup->path_sel_proto;
2529 ifmsh->mesh_pm_id = setup->path_metric;
2530 ifmsh->user_mpm = setup->user_mpm;
2531 ifmsh->mesh_auth_id = setup->auth_id;
2532 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2533 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2534 if (setup->is_authenticated)
2535 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2536 if (setup->is_secure)
2537 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2538
2539 /* mcast rate setting in Mesh Node */
2540 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2541 sizeof(setup->mcast_rate));
2542 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2543
2544 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2545 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2546
2547 sdata->beacon_rate_set = false;
2548 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2549 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2550 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2551 sdata->beacon_rateidx_mask[i] =
2552 setup->beacon_rate.control[i].legacy;
2553 if (sdata->beacon_rateidx_mask[i])
2554 sdata->beacon_rate_set = true;
2555 }
2556 }
2557
2558 return 0;
2559 }
2560
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2561 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2562 struct net_device *dev, u32 mask,
2563 const struct mesh_config *nconf)
2564 {
2565 struct mesh_config *conf;
2566 struct ieee80211_sub_if_data *sdata;
2567 struct ieee80211_if_mesh *ifmsh;
2568
2569 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2570 ifmsh = &sdata->u.mesh;
2571
2572 /* Set the config options which we are interested in setting */
2573 conf = &(sdata->u.mesh.mshcfg);
2574 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2575 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2576 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2577 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2578 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2579 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2580 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2581 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2582 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2583 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2584 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2585 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2586 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2587 conf->element_ttl = nconf->element_ttl;
2588 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2589 if (ifmsh->user_mpm)
2590 return -EBUSY;
2591 conf->auto_open_plinks = nconf->auto_open_plinks;
2592 }
2593 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2594 conf->dot11MeshNbrOffsetMaxNeighbor =
2595 nconf->dot11MeshNbrOffsetMaxNeighbor;
2596 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2597 conf->dot11MeshHWMPmaxPREQretries =
2598 nconf->dot11MeshHWMPmaxPREQretries;
2599 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2600 conf->path_refresh_time = nconf->path_refresh_time;
2601 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2602 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2603 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2604 conf->dot11MeshHWMPactivePathTimeout =
2605 nconf->dot11MeshHWMPactivePathTimeout;
2606 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2607 conf->dot11MeshHWMPpreqMinInterval =
2608 nconf->dot11MeshHWMPpreqMinInterval;
2609 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2610 conf->dot11MeshHWMPperrMinInterval =
2611 nconf->dot11MeshHWMPperrMinInterval;
2612 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2613 mask))
2614 conf->dot11MeshHWMPnetDiameterTraversalTime =
2615 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2616 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2617 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2618 ieee80211_mesh_root_setup(ifmsh);
2619 }
2620 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2621 /* our current gate announcement implementation rides on root
2622 * announcements, so require this ifmsh to also be a root node
2623 * */
2624 if (nconf->dot11MeshGateAnnouncementProtocol &&
2625 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2626 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2627 ieee80211_mesh_root_setup(ifmsh);
2628 }
2629 conf->dot11MeshGateAnnouncementProtocol =
2630 nconf->dot11MeshGateAnnouncementProtocol;
2631 }
2632 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2633 conf->dot11MeshHWMPRannInterval =
2634 nconf->dot11MeshHWMPRannInterval;
2635 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2636 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2637 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2638 /* our RSSI threshold implementation is supported only for
2639 * devices that report signal in dBm.
2640 */
2641 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2642 return -EOPNOTSUPP;
2643 conf->rssi_threshold = nconf->rssi_threshold;
2644 }
2645 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2646 conf->ht_opmode = nconf->ht_opmode;
2647 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2648 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2649 BSS_CHANGED_HT);
2650 }
2651 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2652 conf->dot11MeshHWMPactivePathToRootTimeout =
2653 nconf->dot11MeshHWMPactivePathToRootTimeout;
2654 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2655 conf->dot11MeshHWMProotInterval =
2656 nconf->dot11MeshHWMProotInterval;
2657 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2658 conf->dot11MeshHWMPconfirmationInterval =
2659 nconf->dot11MeshHWMPconfirmationInterval;
2660 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2661 conf->power_mode = nconf->power_mode;
2662 ieee80211_mps_local_status_update(sdata);
2663 }
2664 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2665 conf->dot11MeshAwakeWindowDuration =
2666 nconf->dot11MeshAwakeWindowDuration;
2667 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2668 conf->plink_timeout = nconf->plink_timeout;
2669 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2670 conf->dot11MeshConnectedToMeshGate =
2671 nconf->dot11MeshConnectedToMeshGate;
2672 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2673 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2674 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2675 conf->dot11MeshConnectedToAuthServer =
2676 nconf->dot11MeshConnectedToAuthServer;
2677 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2678 return 0;
2679 }
2680
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2681 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2682 const struct mesh_config *conf,
2683 const struct mesh_setup *setup)
2684 {
2685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2686 struct ieee80211_chan_req chanreq = { .oper = setup->chandef };
2687 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2688 int err;
2689
2690 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2691
2692 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2693 err = copy_mesh_setup(ifmsh, setup);
2694 if (err)
2695 return err;
2696
2697 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2698
2699 /* can mesh use other SMPS modes? */
2700 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2701 sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2702
2703 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
2704 IEEE80211_CHANCTX_SHARED);
2705 if (err)
2706 return err;
2707
2708 return ieee80211_start_mesh(sdata);
2709 }
2710
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2711 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2712 {
2713 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2714
2715 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2716
2717 ieee80211_stop_mesh(sdata);
2718 ieee80211_link_release_channel(&sdata->deflink);
2719 kfree(sdata->u.mesh.ie);
2720
2721 return 0;
2722 }
2723 #endif
2724
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2725 static int ieee80211_change_bss(struct wiphy *wiphy,
2726 struct net_device *dev,
2727 struct bss_parameters *params)
2728 {
2729 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2730 struct ieee80211_link_data *link;
2731 struct ieee80211_supported_band *sband;
2732 u64 changed = 0;
2733
2734 link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2735 if (IS_ERR(link))
2736 return PTR_ERR(link);
2737
2738 if (!sdata_dereference(link->u.ap.beacon, sdata))
2739 return -ENOENT;
2740
2741 sband = ieee80211_get_link_sband(link);
2742 if (!sband)
2743 return -EINVAL;
2744
2745 if (params->basic_rates) {
2746 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
2747 wiphy->bands[sband->band],
2748 params->basic_rates,
2749 params->basic_rates_len,
2750 &link->conf->basic_rates))
2751 return -EINVAL;
2752 changed |= BSS_CHANGED_BASIC_RATES;
2753 ieee80211_check_rate_mask(link);
2754 }
2755
2756 if (params->use_cts_prot >= 0) {
2757 link->conf->use_cts_prot = params->use_cts_prot;
2758 changed |= BSS_CHANGED_ERP_CTS_PROT;
2759 }
2760 if (params->use_short_preamble >= 0) {
2761 link->conf->use_short_preamble = params->use_short_preamble;
2762 changed |= BSS_CHANGED_ERP_PREAMBLE;
2763 }
2764
2765 if (!link->conf->use_short_slot &&
2766 (sband->band == NL80211_BAND_5GHZ ||
2767 sband->band == NL80211_BAND_6GHZ)) {
2768 link->conf->use_short_slot = true;
2769 changed |= BSS_CHANGED_ERP_SLOT;
2770 }
2771
2772 if (params->use_short_slot_time >= 0) {
2773 link->conf->use_short_slot = params->use_short_slot_time;
2774 changed |= BSS_CHANGED_ERP_SLOT;
2775 }
2776
2777 if (params->ap_isolate >= 0) {
2778 if (params->ap_isolate)
2779 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2780 else
2781 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2782 ieee80211_check_fast_rx_iface(sdata);
2783 }
2784
2785 if (params->ht_opmode >= 0) {
2786 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2787 changed |= BSS_CHANGED_HT;
2788 }
2789
2790 if (params->p2p_ctwindow >= 0) {
2791 link->conf->p2p_noa_attr.oppps_ctwindow &=
2792 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2793 link->conf->p2p_noa_attr.oppps_ctwindow |=
2794 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2795 changed |= BSS_CHANGED_P2P_PS;
2796 }
2797
2798 if (params->p2p_opp_ps > 0) {
2799 link->conf->p2p_noa_attr.oppps_ctwindow |=
2800 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2801 changed |= BSS_CHANGED_P2P_PS;
2802 } else if (params->p2p_opp_ps == 0) {
2803 link->conf->p2p_noa_attr.oppps_ctwindow &=
2804 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2805 changed |= BSS_CHANGED_P2P_PS;
2806 }
2807
2808 ieee80211_link_info_change_notify(sdata, link, changed);
2809
2810 return 0;
2811 }
2812
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2813 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2814 struct net_device *dev,
2815 struct ieee80211_txq_params *params)
2816 {
2817 struct ieee80211_local *local = wiphy_priv(wiphy);
2818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2819 struct ieee80211_link_data *link =
2820 ieee80211_link_or_deflink(sdata, params->link_id, true);
2821 struct ieee80211_tx_queue_params p;
2822
2823 if (!local->ops->conf_tx)
2824 return -EOPNOTSUPP;
2825
2826 if (local->hw.queues < IEEE80211_NUM_ACS)
2827 return -EOPNOTSUPP;
2828
2829 if (IS_ERR(link))
2830 return PTR_ERR(link);
2831
2832 memset(&p, 0, sizeof(p));
2833 p.aifs = params->aifs;
2834 p.cw_max = params->cwmax;
2835 p.cw_min = params->cwmin;
2836 p.txop = params->txop;
2837
2838 /*
2839 * Setting tx queue params disables u-apsd because it's only
2840 * called in master mode.
2841 */
2842 p.uapsd = false;
2843
2844 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2845
2846 link->tx_conf[params->ac] = p;
2847 if (drv_conf_tx(local, link, params->ac, &p)) {
2848 wiphy_debug(local->hw.wiphy,
2849 "failed to set TX queue parameters for AC %d\n",
2850 params->ac);
2851 return -EINVAL;
2852 }
2853
2854 ieee80211_link_info_change_notify(sdata, link,
2855 BSS_CHANGED_QOS);
2856
2857 return 0;
2858 }
2859
2860 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2861 static int ieee80211_suspend(struct wiphy *wiphy,
2862 struct cfg80211_wowlan *wowlan)
2863 {
2864 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2865 }
2866
ieee80211_resume(struct wiphy * wiphy)2867 static int ieee80211_resume(struct wiphy *wiphy)
2868 {
2869 return __ieee80211_resume(wiphy_priv(wiphy));
2870 }
2871 #else
2872 #define ieee80211_suspend NULL
2873 #define ieee80211_resume NULL
2874 #endif
2875
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2876 static int ieee80211_scan(struct wiphy *wiphy,
2877 struct cfg80211_scan_request *req)
2878 {
2879 struct ieee80211_sub_if_data *sdata;
2880
2881 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2882
2883 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2884 case NL80211_IFTYPE_STATION:
2885 case NL80211_IFTYPE_ADHOC:
2886 case NL80211_IFTYPE_MESH_POINT:
2887 case NL80211_IFTYPE_P2P_CLIENT:
2888 case NL80211_IFTYPE_P2P_DEVICE:
2889 break;
2890 case NL80211_IFTYPE_P2P_GO:
2891 if (sdata->local->ops->hw_scan)
2892 break;
2893 /*
2894 * FIXME: implement NoA while scanning in software,
2895 * for now fall through to allow scanning only when
2896 * beaconing hasn't been configured yet
2897 */
2898 fallthrough;
2899 case NL80211_IFTYPE_AP:
2900 /*
2901 * If the scan has been forced (and the driver supports
2902 * forcing), don't care about being beaconing already.
2903 * This will create problems to the attached stations (e.g. all
2904 * the frames sent while scanning on other channel will be
2905 * lost)
2906 */
2907 if (sdata->deflink.u.ap.beacon &&
2908 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2909 !(req->flags & NL80211_SCAN_FLAG_AP)))
2910 return -EOPNOTSUPP;
2911 break;
2912 case NL80211_IFTYPE_NAN:
2913 default:
2914 return -EOPNOTSUPP;
2915 }
2916
2917 return ieee80211_request_scan(sdata, req);
2918 }
2919
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2920 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2921 {
2922 ieee80211_scan_cancel(wiphy_priv(wiphy));
2923 }
2924
2925 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2926 ieee80211_sched_scan_start(struct wiphy *wiphy,
2927 struct net_device *dev,
2928 struct cfg80211_sched_scan_request *req)
2929 {
2930 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2931
2932 if (!sdata->local->ops->sched_scan_start)
2933 return -EOPNOTSUPP;
2934
2935 return ieee80211_request_sched_scan_start(sdata, req);
2936 }
2937
2938 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2939 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2940 u64 reqid)
2941 {
2942 struct ieee80211_local *local = wiphy_priv(wiphy);
2943
2944 if (!local->ops->sched_scan_stop)
2945 return -EOPNOTSUPP;
2946
2947 return ieee80211_request_sched_scan_stop(local);
2948 }
2949
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2950 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2951 struct cfg80211_auth_request *req)
2952 {
2953 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2954 }
2955
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2956 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2957 struct cfg80211_assoc_request *req)
2958 {
2959 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2960 }
2961
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2962 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2963 struct cfg80211_deauth_request *req)
2964 {
2965 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2966 }
2967
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2968 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2969 struct cfg80211_disassoc_request *req)
2970 {
2971 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2972 }
2973
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2974 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2975 struct cfg80211_ibss_params *params)
2976 {
2977 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2978 }
2979
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2980 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2981 {
2982 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2983 }
2984
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2985 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2986 struct ocb_setup *setup)
2987 {
2988 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2989 }
2990
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2991 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2992 {
2993 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2994 }
2995
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2996 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2997 int rate[NUM_NL80211_BANDS])
2998 {
2999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3000
3001 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
3002 sizeof(int) * NUM_NL80211_BANDS);
3003
3004 if (ieee80211_sdata_running(sdata))
3005 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3006 BSS_CHANGED_MCAST_RATE);
3007
3008 return 0;
3009 }
3010
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)3011 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
3012 {
3013 struct ieee80211_local *local = wiphy_priv(wiphy);
3014 int err;
3015
3016 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
3017 ieee80211_check_fast_xmit_all(local);
3018
3019 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
3020
3021 if (err) {
3022 ieee80211_check_fast_xmit_all(local);
3023 return err;
3024 }
3025 }
3026
3027 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
3028 (changed & WIPHY_PARAM_DYN_ACK)) {
3029 s16 coverage_class;
3030
3031 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
3032 wiphy->coverage_class : -1;
3033 err = drv_set_coverage_class(local, coverage_class);
3034
3035 if (err)
3036 return err;
3037 }
3038
3039 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
3040 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
3041
3042 if (err)
3043 return err;
3044 }
3045
3046 if (changed & WIPHY_PARAM_RETRY_SHORT) {
3047 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
3048 return -EINVAL;
3049 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
3050 }
3051 if (changed & WIPHY_PARAM_RETRY_LONG) {
3052 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
3053 return -EINVAL;
3054 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
3055 }
3056 if (changed &
3057 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
3058 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
3059
3060 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
3061 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
3062 WIPHY_PARAM_TXQ_QUANTUM))
3063 ieee80211_txq_set_params(local);
3064
3065 return 0;
3066 }
3067
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)3068 static int ieee80211_set_tx_power(struct wiphy *wiphy,
3069 struct wireless_dev *wdev,
3070 enum nl80211_tx_power_setting type, int mbm)
3071 {
3072 struct ieee80211_local *local = wiphy_priv(wiphy);
3073 struct ieee80211_sub_if_data *sdata;
3074 enum nl80211_tx_power_setting txp_type = type;
3075 bool update_txp_type = false;
3076 bool has_monitor = false;
3077 int user_power_level;
3078 int old_power = local->user_power_level;
3079
3080 lockdep_assert_wiphy(local->hw.wiphy);
3081
3082 switch (type) {
3083 case NL80211_TX_POWER_AUTOMATIC:
3084 user_power_level = IEEE80211_UNSET_POWER_LEVEL;
3085 txp_type = NL80211_TX_POWER_LIMITED;
3086 break;
3087 case NL80211_TX_POWER_LIMITED:
3088 case NL80211_TX_POWER_FIXED:
3089 if (mbm < 0 || (mbm % 100))
3090 return -EOPNOTSUPP;
3091 user_power_level = MBM_TO_DBM(mbm);
3092 break;
3093 default:
3094 return -EINVAL;
3095 }
3096
3097 if (wdev) {
3098 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3099
3100 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3101 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
3102 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
3103 return -EOPNOTSUPP;
3104
3105 sdata = wiphy_dereference(local->hw.wiphy,
3106 local->monitor_sdata);
3107 if (!sdata)
3108 return -EOPNOTSUPP;
3109 }
3110
3111 for (int link_id = 0;
3112 link_id < ARRAY_SIZE(sdata->link);
3113 link_id++) {
3114 struct ieee80211_link_data *link =
3115 wiphy_dereference(wiphy, sdata->link[link_id]);
3116
3117 if (!link)
3118 continue;
3119
3120 link->user_power_level = user_power_level;
3121
3122 if (txp_type != link->conf->txpower_type) {
3123 update_txp_type = true;
3124 link->conf->txpower_type = txp_type;
3125 }
3126
3127 ieee80211_recalc_txpower(link, update_txp_type);
3128 }
3129 return 0;
3130 }
3131
3132 local->user_power_level = user_power_level;
3133
3134 list_for_each_entry(sdata, &local->interfaces, list) {
3135 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3136 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
3137 has_monitor = true;
3138 continue;
3139 }
3140
3141 for (int link_id = 0;
3142 link_id < ARRAY_SIZE(sdata->link);
3143 link_id++) {
3144 struct ieee80211_link_data *link =
3145 wiphy_dereference(wiphy, sdata->link[link_id]);
3146
3147 if (!link)
3148 continue;
3149
3150 link->user_power_level = local->user_power_level;
3151 if (txp_type != link->conf->txpower_type)
3152 update_txp_type = true;
3153 link->conf->txpower_type = txp_type;
3154 }
3155 }
3156 list_for_each_entry(sdata, &local->interfaces, list) {
3157 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3158 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
3159 continue;
3160
3161 for (int link_id = 0;
3162 link_id < ARRAY_SIZE(sdata->link);
3163 link_id++) {
3164 struct ieee80211_link_data *link =
3165 wiphy_dereference(wiphy, sdata->link[link_id]);
3166
3167 if (!link)
3168 continue;
3169
3170 ieee80211_recalc_txpower(link, update_txp_type);
3171 }
3172 }
3173
3174 if (has_monitor) {
3175 sdata = wiphy_dereference(local->hw.wiphy,
3176 local->monitor_sdata);
3177 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
3178 sdata->deflink.user_power_level = local->user_power_level;
3179 if (txp_type != sdata->vif.bss_conf.txpower_type)
3180 update_txp_type = true;
3181 sdata->vif.bss_conf.txpower_type = txp_type;
3182
3183 ieee80211_recalc_txpower(&sdata->deflink,
3184 update_txp_type);
3185 }
3186 }
3187
3188 if (local->emulate_chanctx &&
3189 (old_power != local->user_power_level))
3190 ieee80211_hw_conf_chan(local);
3191
3192 return 0;
3193 }
3194
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,int * dbm)3195 static int ieee80211_get_tx_power(struct wiphy *wiphy,
3196 struct wireless_dev *wdev,
3197 unsigned int link_id,
3198 int *dbm)
3199 {
3200 struct ieee80211_local *local = wiphy_priv(wiphy);
3201 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3202 struct ieee80211_link_data *link_data;
3203
3204 if (local->ops->get_txpower &&
3205 (sdata->flags & IEEE80211_SDATA_IN_DRIVER))
3206 return drv_get_txpower(local, sdata, link_id, dbm);
3207
3208 if (local->emulate_chanctx) {
3209 *dbm = local->hw.conf.power_level;
3210 } else {
3211 link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
3212
3213 if (link_data)
3214 *dbm = link_data->conf->txpower;
3215 else
3216 return -ENOLINK;
3217 }
3218
3219 /* INT_MIN indicates no power level was set yet */
3220 if (*dbm == INT_MIN)
3221 return -EINVAL;
3222
3223 return 0;
3224 }
3225
ieee80211_rfkill_poll(struct wiphy * wiphy)3226 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3227 {
3228 struct ieee80211_local *local = wiphy_priv(wiphy);
3229
3230 drv_rfkill_poll(local);
3231 }
3232
3233 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)3234 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3235 struct wireless_dev *wdev,
3236 void *data, int len)
3237 {
3238 struct ieee80211_local *local = wiphy_priv(wiphy);
3239 struct ieee80211_vif *vif = NULL;
3240
3241 if (!local->ops->testmode_cmd)
3242 return -EOPNOTSUPP;
3243
3244 if (wdev) {
3245 struct ieee80211_sub_if_data *sdata;
3246
3247 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3248 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3249 vif = &sdata->vif;
3250 }
3251
3252 return local->ops->testmode_cmd(&local->hw, vif, data, len);
3253 }
3254
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)3255 static int ieee80211_testmode_dump(struct wiphy *wiphy,
3256 struct sk_buff *skb,
3257 struct netlink_callback *cb,
3258 void *data, int len)
3259 {
3260 struct ieee80211_local *local = wiphy_priv(wiphy);
3261
3262 if (!local->ops->testmode_dump)
3263 return -EOPNOTSUPP;
3264
3265 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3266 }
3267 #endif
3268
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,enum ieee80211_smps_mode smps_mode)3269 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3270 struct ieee80211_link_data *link,
3271 enum ieee80211_smps_mode smps_mode)
3272 {
3273 const u8 *ap;
3274 enum ieee80211_smps_mode old_req;
3275 int err;
3276 struct sta_info *sta;
3277 bool tdls_peer_found = false;
3278
3279 lockdep_assert_wiphy(sdata->local->hw.wiphy);
3280
3281 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3282 return -EINVAL;
3283
3284 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
3285 return 0;
3286
3287 old_req = link->u.mgd.req_smps;
3288 link->u.mgd.req_smps = smps_mode;
3289
3290 /* The driver indicated that EML is enabled for the interface, which
3291 * implies that SMPS flows towards the AP should be stopped.
3292 */
3293 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
3294 return 0;
3295
3296 if (old_req == smps_mode &&
3297 smps_mode != IEEE80211_SMPS_AUTOMATIC)
3298 return 0;
3299
3300 /*
3301 * If not associated, or current association is not an HT
3302 * association, there's no need to do anything, just store
3303 * the new value until we associate.
3304 */
3305 if (!sdata->u.mgd.associated ||
3306 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT)
3307 return 0;
3308
3309 ap = sdata->vif.cfg.ap_addr;
3310
3311 rcu_read_lock();
3312 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3313 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3314 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3315 continue;
3316
3317 tdls_peer_found = true;
3318 break;
3319 }
3320 rcu_read_unlock();
3321
3322 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3323 if (tdls_peer_found || !sdata->u.mgd.powersave)
3324 smps_mode = IEEE80211_SMPS_OFF;
3325 else
3326 smps_mode = IEEE80211_SMPS_DYNAMIC;
3327 }
3328
3329 /* send SM PS frame to AP */
3330 err = ieee80211_send_smps_action(sdata, smps_mode,
3331 ap, ap,
3332 ieee80211_vif_is_mld(&sdata->vif) ?
3333 link->link_id : -1);
3334 if (err)
3335 link->u.mgd.req_smps = old_req;
3336 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3337 ieee80211_teardown_tdls_peers(link);
3338
3339 return err;
3340 }
3341
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)3342 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3343 bool enabled, int timeout)
3344 {
3345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3346 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3347 unsigned int link_id;
3348
3349 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3350 return -EOPNOTSUPP;
3351
3352 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3353 return -EOPNOTSUPP;
3354
3355 if (enabled == sdata->u.mgd.powersave &&
3356 timeout == local->dynamic_ps_forced_timeout)
3357 return 0;
3358
3359 sdata->u.mgd.powersave = enabled;
3360 local->dynamic_ps_forced_timeout = timeout;
3361
3362 /* no change, but if automatic follow powersave */
3363 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3364 struct ieee80211_link_data *link;
3365
3366 link = sdata_dereference(sdata->link[link_id], sdata);
3367
3368 if (!link)
3369 continue;
3370 __ieee80211_request_smps_mgd(sdata, link,
3371 link->u.mgd.req_smps);
3372 }
3373
3374 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3375 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3376
3377 ieee80211_recalc_ps(local);
3378 ieee80211_recalc_ps_vif(sdata);
3379 ieee80211_check_fast_rx_iface(sdata);
3380
3381 return 0;
3382 }
3383
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)3384 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata,
3385 struct ieee80211_link_data *link,
3386 s32 rssi_thold, u32 rssi_hyst,
3387 s32 rssi_low, s32 rssi_high)
3388 {
3389 struct ieee80211_bss_conf *conf;
3390
3391 if (!link || !link->conf)
3392 return;
3393
3394 conf = link->conf;
3395
3396 if (rssi_thold && rssi_hyst &&
3397 rssi_thold == conf->cqm_rssi_thold &&
3398 rssi_hyst == conf->cqm_rssi_hyst)
3399 return;
3400
3401 conf->cqm_rssi_thold = rssi_thold;
3402 conf->cqm_rssi_hyst = rssi_hyst;
3403 conf->cqm_rssi_low = rssi_low;
3404 conf->cqm_rssi_high = rssi_high;
3405 link->u.mgd.last_cqm_event_signal = 0;
3406
3407 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
3408 return;
3409
3410 if (sdata->u.mgd.associated &&
3411 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3412 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM);
3413 }
3414
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)3415 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3416 struct net_device *dev,
3417 s32 rssi_thold, u32 rssi_hyst)
3418 {
3419 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3420 struct ieee80211_vif *vif = &sdata->vif;
3421 int link_id;
3422
3423 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3424 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3425 return -EOPNOTSUPP;
3426
3427 /* For MLD, handle CQM change on all the active links */
3428 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3429 struct ieee80211_link_data *link =
3430 sdata_dereference(sdata->link[link_id], sdata);
3431
3432 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst,
3433 0, 0);
3434 }
3435
3436 return 0;
3437 }
3438
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)3439 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3440 struct net_device *dev,
3441 s32 rssi_low, s32 rssi_high)
3442 {
3443 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3444 struct ieee80211_vif *vif = &sdata->vif;
3445 int link_id;
3446
3447 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)
3448 return -EOPNOTSUPP;
3449
3450 /* For MLD, handle CQM change on all the active links */
3451 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3452 struct ieee80211_link_data *link =
3453 sdata_dereference(sdata->link[link_id], sdata);
3454
3455 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0,
3456 rssi_low, rssi_high);
3457 }
3458
3459 return 0;
3460 }
3461
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * addr,const struct cfg80211_bitrate_mask * mask)3462 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3463 struct net_device *dev,
3464 unsigned int link_id,
3465 const u8 *addr,
3466 const struct cfg80211_bitrate_mask *mask)
3467 {
3468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3469 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3470 int i, ret;
3471
3472 if (!ieee80211_sdata_running(sdata))
3473 return -ENETDOWN;
3474
3475 /*
3476 * If active validate the setting and reject it if it doesn't leave
3477 * at least one basic rate usable, since we really have to be able
3478 * to send something, and if we're an AP we have to be able to do
3479 * so at a basic rate so that all clients can receive it.
3480 */
3481 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3482 sdata->vif.bss_conf.chanreq.oper.chan) {
3483 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3484 enum nl80211_band band;
3485
3486 band = sdata->vif.bss_conf.chanreq.oper.chan->band;
3487
3488 if (!(mask->control[band].legacy & basic_rates))
3489 return -EINVAL;
3490 }
3491
3492 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3493 ret = drv_set_bitrate_mask(local, sdata, mask);
3494 if (ret)
3495 return ret;
3496 }
3497
3498 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3499 struct ieee80211_supported_band *sband = wiphy->bands[i];
3500 int j;
3501
3502 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3503 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3504 sizeof(mask->control[i].ht_mcs));
3505 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3506 mask->control[i].vht_mcs,
3507 sizeof(mask->control[i].vht_mcs));
3508
3509 sdata->rc_has_mcs_mask[i] = false;
3510 sdata->rc_has_vht_mcs_mask[i] = false;
3511 if (!sband)
3512 continue;
3513
3514 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3515 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3516 sdata->rc_has_mcs_mask[i] = true;
3517 break;
3518 }
3519 }
3520
3521 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3522 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3523 sdata->rc_has_vht_mcs_mask[i] = true;
3524 break;
3525 }
3526 }
3527 }
3528
3529 return 0;
3530 }
3531
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms,int link_id)3532 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3533 struct net_device *dev,
3534 struct cfg80211_chan_def *chandef,
3535 u32 cac_time_ms, int link_id)
3536 {
3537 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3538 struct ieee80211_chan_req chanreq = { .oper = *chandef };
3539 struct ieee80211_local *local = sdata->local;
3540 struct ieee80211_link_data *link_data;
3541 int err;
3542
3543 lockdep_assert_wiphy(local->hw.wiphy);
3544
3545 if (!list_empty(&local->roc_list) || local->scanning)
3546 return -EBUSY;
3547
3548 link_data = sdata_dereference(sdata->link[link_id], sdata);
3549 if (!link_data)
3550 return -ENOLINK;
3551
3552 /* whatever, but channel contexts should not complain about that one */
3553 link_data->smps_mode = IEEE80211_SMPS_OFF;
3554 link_data->needed_rx_chains = local->rx_chains;
3555
3556 err = ieee80211_link_use_channel(link_data, &chanreq,
3557 IEEE80211_CHANCTX_SHARED);
3558 if (err)
3559 return err;
3560
3561 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work,
3562 msecs_to_jiffies(cac_time_ms));
3563
3564 return 0;
3565 }
3566
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)3567 static void ieee80211_end_cac(struct wiphy *wiphy,
3568 struct net_device *dev, unsigned int link_id)
3569 {
3570 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3571 struct ieee80211_local *local = sdata->local;
3572 struct ieee80211_link_data *link_data;
3573
3574 lockdep_assert_wiphy(local->hw.wiphy);
3575
3576 list_for_each_entry(sdata, &local->interfaces, list) {
3577 link_data = sdata_dereference(sdata->link[link_id], sdata);
3578 if (!link_data)
3579 continue;
3580
3581 wiphy_delayed_work_cancel(wiphy,
3582 &link_data->dfs_cac_timer_work);
3583
3584 if (sdata->wdev.links[link_id].cac_started) {
3585 ieee80211_link_release_channel(link_data);
3586 sdata->wdev.links[link_id].cac_started = false;
3587 }
3588 }
3589 }
3590
3591 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3592 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3593 {
3594 struct cfg80211_beacon_data *new_beacon;
3595 u8 *pos;
3596 int len;
3597
3598 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3599 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3600 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3601
3602 if (beacon->mbssid_ies)
3603 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
3604 beacon->rnr_ies,
3605 beacon->mbssid_ies->cnt);
3606
3607 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3608 if (!new_beacon)
3609 return NULL;
3610
3611 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3612 new_beacon->mbssid_ies =
3613 kzalloc(struct_size(new_beacon->mbssid_ies,
3614 elem, beacon->mbssid_ies->cnt),
3615 GFP_KERNEL);
3616 if (!new_beacon->mbssid_ies) {
3617 kfree(new_beacon);
3618 return NULL;
3619 }
3620
3621 if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
3622 new_beacon->rnr_ies =
3623 kzalloc(struct_size(new_beacon->rnr_ies,
3624 elem, beacon->rnr_ies->cnt),
3625 GFP_KERNEL);
3626 if (!new_beacon->rnr_ies) {
3627 kfree(new_beacon->mbssid_ies);
3628 kfree(new_beacon);
3629 return NULL;
3630 }
3631 }
3632 }
3633
3634 pos = (u8 *)(new_beacon + 1);
3635 if (beacon->head_len) {
3636 new_beacon->head_len = beacon->head_len;
3637 new_beacon->head = pos;
3638 memcpy(pos, beacon->head, beacon->head_len);
3639 pos += beacon->head_len;
3640 }
3641 if (beacon->tail_len) {
3642 new_beacon->tail_len = beacon->tail_len;
3643 new_beacon->tail = pos;
3644 memcpy(pos, beacon->tail, beacon->tail_len);
3645 pos += beacon->tail_len;
3646 }
3647 if (beacon->beacon_ies_len) {
3648 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3649 new_beacon->beacon_ies = pos;
3650 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3651 pos += beacon->beacon_ies_len;
3652 }
3653 if (beacon->proberesp_ies_len) {
3654 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3655 new_beacon->proberesp_ies = pos;
3656 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3657 pos += beacon->proberesp_ies_len;
3658 }
3659 if (beacon->assocresp_ies_len) {
3660 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3661 new_beacon->assocresp_ies = pos;
3662 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3663 pos += beacon->assocresp_ies_len;
3664 }
3665 if (beacon->probe_resp_len) {
3666 new_beacon->probe_resp_len = beacon->probe_resp_len;
3667 new_beacon->probe_resp = pos;
3668 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3669 pos += beacon->probe_resp_len;
3670 }
3671 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3672 pos += ieee80211_copy_mbssid_beacon(pos,
3673 new_beacon->mbssid_ies,
3674 beacon->mbssid_ies);
3675 if (beacon->rnr_ies && beacon->rnr_ies->cnt)
3676 pos += ieee80211_copy_rnr_beacon(pos,
3677 new_beacon->rnr_ies,
3678 beacon->rnr_ies);
3679 }
3680
3681 /* might copy -1, meaning no changes requested */
3682 new_beacon->ftm_responder = beacon->ftm_responder;
3683 if (beacon->lci) {
3684 new_beacon->lci_len = beacon->lci_len;
3685 new_beacon->lci = pos;
3686 memcpy(pos, beacon->lci, beacon->lci_len);
3687 pos += beacon->lci_len;
3688 }
3689 if (beacon->civicloc) {
3690 new_beacon->civicloc_len = beacon->civicloc_len;
3691 new_beacon->civicloc = pos;
3692 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3693 pos += beacon->civicloc_len;
3694 }
3695
3696 return new_beacon;
3697 }
3698
ieee80211_csa_finish(struct ieee80211_vif * vif,unsigned int link_id)3699 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id)
3700 {
3701 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3702 struct ieee80211_local *local = sdata->local;
3703 struct ieee80211_link_data *link_data;
3704
3705 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
3706 return;
3707
3708 rcu_read_lock();
3709
3710 link_data = rcu_dereference(sdata->link[link_id]);
3711 if (WARN_ON(!link_data)) {
3712 rcu_read_unlock();
3713 return;
3714 }
3715
3716 /* TODO: MBSSID with MLO changes */
3717 if (vif->mbssid_tx_vif == vif) {
3718 /* Trigger ieee80211_csa_finish() on the non-transmitting
3719 * interfaces when channel switch is received on
3720 * transmitting interface
3721 */
3722 struct ieee80211_sub_if_data *iter;
3723
3724 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3725 if (!ieee80211_sdata_running(iter))
3726 continue;
3727
3728 if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3729 continue;
3730
3731 wiphy_work_queue(iter->local->hw.wiphy,
3732 &iter->deflink.csa.finalize_work);
3733 }
3734 }
3735 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work);
3736
3737 rcu_read_unlock();
3738 }
3739 EXPORT_SYMBOL(ieee80211_csa_finish);
3740
ieee80211_channel_switch_disconnect(struct ieee80211_vif * vif)3741 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif)
3742 {
3743 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3744 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3745 struct ieee80211_local *local = sdata->local;
3746
3747 sdata_info(sdata, "channel switch failed, disconnecting\n");
3748 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work);
3749 }
3750 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3751
ieee80211_set_after_csa_beacon(struct ieee80211_link_data * link_data,u64 * changed)3752 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data,
3753 u64 *changed)
3754 {
3755 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3756 int err;
3757
3758 switch (sdata->vif.type) {
3759 case NL80211_IFTYPE_AP:
3760 if (!link_data->u.ap.next_beacon)
3761 return -EINVAL;
3762
3763 err = ieee80211_assign_beacon(sdata, link_data,
3764 link_data->u.ap.next_beacon,
3765 NULL, NULL, changed);
3766 ieee80211_free_next_beacon(link_data);
3767
3768 if (err < 0)
3769 return err;
3770 break;
3771 case NL80211_IFTYPE_ADHOC:
3772 err = ieee80211_ibss_finish_csa(sdata, changed);
3773 if (err < 0)
3774 return err;
3775 break;
3776 #ifdef CONFIG_MAC80211_MESH
3777 case NL80211_IFTYPE_MESH_POINT:
3778 err = ieee80211_mesh_finish_csa(sdata, changed);
3779 if (err < 0)
3780 return err;
3781 break;
3782 #endif
3783 default:
3784 WARN_ON(1);
3785 return -EINVAL;
3786 }
3787
3788 return 0;
3789 }
3790
__ieee80211_csa_finalize(struct ieee80211_link_data * link_data)3791 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3792 {
3793 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3794 struct ieee80211_local *local = sdata->local;
3795 struct ieee80211_bss_conf *link_conf = link_data->conf;
3796 u64 changed = 0;
3797 int err;
3798
3799 lockdep_assert_wiphy(local->hw.wiphy);
3800
3801 /*
3802 * using reservation isn't immediate as it may be deferred until later
3803 * with multi-vif. once reservation is complete it will re-schedule the
3804 * work with no reserved_chanctx so verify chandef to check if it
3805 * completed successfully
3806 */
3807
3808 if (link_data->reserved_chanctx) {
3809 /*
3810 * with multi-vif csa driver may call ieee80211_csa_finish()
3811 * many times while waiting for other interfaces to use their
3812 * reservations
3813 */
3814 if (link_data->reserved_ready)
3815 return 0;
3816
3817 return ieee80211_link_use_reserved_context(link_data);
3818 }
3819
3820 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper,
3821 &link_data->csa.chanreq.oper))
3822 return -EINVAL;
3823
3824 link_conf->csa_active = false;
3825
3826 err = ieee80211_set_after_csa_beacon(link_data, &changed);
3827 if (err)
3828 return err;
3829
3830 ieee80211_link_info_change_notify(sdata, link_data, changed);
3831
3832 ieee80211_vif_unblock_queues_csa(sdata);
3833
3834 err = drv_post_channel_switch(link_data);
3835 if (err)
3836 return err;
3837
3838 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper,
3839 link_data->link_id);
3840
3841 return 0;
3842 }
3843
ieee80211_csa_finalize(struct ieee80211_link_data * link_data)3844 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3845 {
3846 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3847
3848 if (__ieee80211_csa_finalize(link_data)) {
3849 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n",
3850 link_data->link_id);
3851 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3852 GFP_KERNEL);
3853 }
3854 }
3855
ieee80211_csa_finalize_work(struct wiphy * wiphy,struct wiphy_work * work)3856 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work)
3857 {
3858 struct ieee80211_link_data *link =
3859 container_of(work, struct ieee80211_link_data, csa.finalize_work);
3860 struct ieee80211_sub_if_data *sdata = link->sdata;
3861 struct ieee80211_local *local = sdata->local;
3862
3863 lockdep_assert_wiphy(local->hw.wiphy);
3864
3865 /* AP might have been stopped while waiting for the lock. */
3866 if (!link->conf->csa_active)
3867 return;
3868
3869 if (!ieee80211_sdata_running(sdata))
3870 return;
3871
3872 ieee80211_csa_finalize(link);
3873 }
3874
ieee80211_set_csa_beacon(struct ieee80211_link_data * link_data,struct cfg80211_csa_settings * params,u64 * changed)3875 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data,
3876 struct cfg80211_csa_settings *params,
3877 u64 *changed)
3878 {
3879 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3880 struct ieee80211_csa_settings csa = {};
3881 int err;
3882
3883 switch (sdata->vif.type) {
3884 case NL80211_IFTYPE_AP:
3885 link_data->u.ap.next_beacon =
3886 cfg80211_beacon_dup(¶ms->beacon_after);
3887 if (!link_data->u.ap.next_beacon)
3888 return -ENOMEM;
3889
3890 /*
3891 * With a count of 0, we don't have to wait for any
3892 * TBTT before switching, so complete the CSA
3893 * immediately. In theory, with a count == 1 we
3894 * should delay the switch until just before the next
3895 * TBTT, but that would complicate things so we switch
3896 * immediately too. If we would delay the switch
3897 * until the next TBTT, we would have to set the probe
3898 * response here.
3899 *
3900 * TODO: A channel switch with count <= 1 without
3901 * sending a CSA action frame is kind of useless,
3902 * because the clients won't know we're changing
3903 * channels. The action frame must be implemented
3904 * either here or in the userspace.
3905 */
3906 if (params->count <= 1)
3907 break;
3908
3909 if ((params->n_counter_offsets_beacon >
3910 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3911 (params->n_counter_offsets_presp >
3912 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3913 ieee80211_free_next_beacon(link_data);
3914 return -EINVAL;
3915 }
3916
3917 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3918 csa.counter_offsets_presp = params->counter_offsets_presp;
3919 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3920 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3921 csa.count = params->count;
3922
3923 err = ieee80211_assign_beacon(sdata, link_data,
3924 ¶ms->beacon_csa, &csa,
3925 NULL, changed);
3926 if (err < 0) {
3927 ieee80211_free_next_beacon(link_data);
3928 return err;
3929 }
3930
3931 break;
3932 case NL80211_IFTYPE_ADHOC:
3933 if (!sdata->vif.cfg.ibss_joined)
3934 return -EINVAL;
3935
3936 if (params->chandef.width != sdata->u.ibss.chandef.width)
3937 return -EINVAL;
3938
3939 switch (params->chandef.width) {
3940 case NL80211_CHAN_WIDTH_40:
3941 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3942 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3943 return -EINVAL;
3944 break;
3945 case NL80211_CHAN_WIDTH_5:
3946 case NL80211_CHAN_WIDTH_10:
3947 case NL80211_CHAN_WIDTH_20_NOHT:
3948 case NL80211_CHAN_WIDTH_20:
3949 break;
3950 default:
3951 return -EINVAL;
3952 }
3953
3954 /* changes into another band are not supported */
3955 if (sdata->u.ibss.chandef.chan->band !=
3956 params->chandef.chan->band)
3957 return -EINVAL;
3958
3959 /* see comments in the NL80211_IFTYPE_AP block */
3960 if (params->count > 1) {
3961 err = ieee80211_ibss_csa_beacon(sdata, params, changed);
3962 if (err < 0)
3963 return err;
3964 }
3965
3966 ieee80211_send_action_csa(sdata, params);
3967
3968 break;
3969 #ifdef CONFIG_MAC80211_MESH
3970 case NL80211_IFTYPE_MESH_POINT: {
3971 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3972
3973 /* changes into another band are not supported */
3974 if (sdata->vif.bss_conf.chanreq.oper.chan->band !=
3975 params->chandef.chan->band)
3976 return -EINVAL;
3977
3978 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3979 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3980 if (!ifmsh->pre_value)
3981 ifmsh->pre_value = 1;
3982 else
3983 ifmsh->pre_value++;
3984 }
3985
3986 /* see comments in the NL80211_IFTYPE_AP block */
3987 if (params->count > 1) {
3988 err = ieee80211_mesh_csa_beacon(sdata, params, changed);
3989 if (err < 0) {
3990 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3991 return err;
3992 }
3993 }
3994
3995 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3996 ieee80211_send_action_csa(sdata, params);
3997
3998 break;
3999 }
4000 #endif
4001 default:
4002 return -EOPNOTSUPP;
4003 }
4004
4005 return 0;
4006 }
4007
ieee80211_color_change_abort(struct ieee80211_link_data * link)4008 static void ieee80211_color_change_abort(struct ieee80211_link_data *link)
4009 {
4010 link->conf->color_change_active = false;
4011
4012 ieee80211_free_next_beacon(link);
4013
4014 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id);
4015 }
4016
4017 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)4018 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4019 struct cfg80211_csa_settings *params)
4020 {
4021 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4022 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
4023 struct ieee80211_local *local = sdata->local;
4024 struct ieee80211_channel_switch ch_switch = {
4025 .link_id = params->link_id,
4026 };
4027 struct ieee80211_chanctx_conf *conf;
4028 struct ieee80211_chanctx *chanctx;
4029 struct ieee80211_bss_conf *link_conf;
4030 struct ieee80211_link_data *link_data;
4031 u64 changed = 0;
4032 u8 link_id = params->link_id;
4033 int err;
4034
4035 lockdep_assert_wiphy(local->hw.wiphy);
4036
4037 if (!list_empty(&local->roc_list) || local->scanning)
4038 return -EBUSY;
4039
4040 if (sdata->wdev.links[link_id].cac_started)
4041 return -EBUSY;
4042
4043 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4044 return -EINVAL;
4045
4046 link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
4047 if (!link_data)
4048 return -ENOLINK;
4049
4050 link_conf = link_data->conf;
4051
4052 if (chanreq.oper.punctured && !link_conf->eht_support)
4053 return -EINVAL;
4054
4055 /* don't allow another channel switch if one is already active. */
4056 if (link_conf->csa_active)
4057 return -EBUSY;
4058
4059 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf);
4060 if (!conf) {
4061 err = -EBUSY;
4062 goto out;
4063 }
4064
4065 if (params->chandef.chan->freq_offset) {
4066 /* this may work, but is untested */
4067 err = -EOPNOTSUPP;
4068 goto out;
4069 }
4070
4071 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
4072
4073 ch_switch.timestamp = 0;
4074 ch_switch.device_timestamp = 0;
4075 ch_switch.block_tx = params->block_tx;
4076 ch_switch.chandef = chanreq.oper;
4077 ch_switch.count = params->count;
4078
4079 err = drv_pre_channel_switch(sdata, &ch_switch);
4080 if (err)
4081 goto out;
4082
4083 err = ieee80211_link_reserve_chanctx(link_data, &chanreq,
4084 chanctx->mode,
4085 params->radar_required);
4086 if (err)
4087 goto out;
4088
4089 /* if reservation is invalid then this will fail */
4090 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1);
4091 if (err) {
4092 ieee80211_link_unreserve_chanctx(link_data);
4093 goto out;
4094 }
4095
4096 /* if there is a color change in progress, abort it */
4097 if (link_conf->color_change_active)
4098 ieee80211_color_change_abort(link_data);
4099
4100 err = ieee80211_set_csa_beacon(link_data, params, &changed);
4101 if (err) {
4102 ieee80211_link_unreserve_chanctx(link_data);
4103 goto out;
4104 }
4105
4106 link_data->csa.chanreq = chanreq;
4107 link_conf->csa_active = true;
4108
4109 if (params->block_tx)
4110 ieee80211_vif_block_queues_csa(sdata);
4111
4112 cfg80211_ch_switch_started_notify(sdata->dev,
4113 &link_data->csa.chanreq.oper, link_id,
4114 params->count, params->block_tx);
4115
4116 if (changed) {
4117 ieee80211_link_info_change_notify(sdata, link_data, changed);
4118 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper);
4119 } else {
4120 /* if the beacon didn't change, we can finalize immediately */
4121 ieee80211_csa_finalize(link_data);
4122 }
4123
4124 out:
4125 return err;
4126 }
4127
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)4128 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4129 struct cfg80211_csa_settings *params)
4130 {
4131 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4132 struct ieee80211_local *local = sdata->local;
4133
4134 lockdep_assert_wiphy(local->hw.wiphy);
4135
4136 return __ieee80211_channel_switch(wiphy, dev, params);
4137 }
4138
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)4139 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
4140 {
4141 lockdep_assert_wiphy(local->hw.wiphy);
4142
4143 local->roc_cookie_counter++;
4144
4145 /* wow, you wrapped 64 bits ... more likely a bug */
4146 if (WARN_ON(local->roc_cookie_counter == 0))
4147 local->roc_cookie_counter++;
4148
4149 return local->roc_cookie_counter;
4150 }
4151
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)4152 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
4153 u64 *cookie, gfp_t gfp)
4154 {
4155 unsigned long spin_flags;
4156 struct sk_buff *ack_skb;
4157 int id;
4158
4159 ack_skb = skb_copy(skb, gfp);
4160 if (!ack_skb)
4161 return -ENOMEM;
4162
4163 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
4164 id = idr_alloc(&local->ack_status_frames, ack_skb,
4165 1, 0x2000, GFP_ATOMIC);
4166 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
4167
4168 if (id < 0) {
4169 kfree_skb(ack_skb);
4170 return -ENOMEM;
4171 }
4172
4173 IEEE80211_SKB_CB(skb)->status_data_idr = 1;
4174 IEEE80211_SKB_CB(skb)->status_data = id;
4175
4176 *cookie = ieee80211_mgmt_tx_cookie(local);
4177 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
4178
4179 return 0;
4180 }
4181
4182 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)4183 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
4184 struct wireless_dev *wdev,
4185 struct mgmt_frame_regs *upd)
4186 {
4187 struct ieee80211_local *local = wiphy_priv(wiphy);
4188 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4189 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
4190 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
4191 bool global_change, intf_change;
4192
4193 global_change =
4194 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
4195 (local->rx_mcast_action_reg !=
4196 !!(upd->global_mcast_stypes & action_mask));
4197 local->probe_req_reg = upd->global_stypes & preq_mask;
4198 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
4199
4200 intf_change = (sdata->vif.probe_req_reg !=
4201 !!(upd->interface_stypes & preq_mask)) ||
4202 (sdata->vif.rx_mcast_action_reg !=
4203 !!(upd->interface_mcast_stypes & action_mask));
4204 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
4205 sdata->vif.rx_mcast_action_reg =
4206 upd->interface_mcast_stypes & action_mask;
4207
4208 if (!local->open_count)
4209 return;
4210
4211 if (intf_change && ieee80211_sdata_running(sdata))
4212 drv_config_iface_filter(local, sdata,
4213 sdata->vif.probe_req_reg ?
4214 FIF_PROBE_REQ : 0,
4215 FIF_PROBE_REQ);
4216
4217 if (global_change)
4218 ieee80211_configure_filter(local);
4219 }
4220
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)4221 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
4222 {
4223 struct ieee80211_local *local = wiphy_priv(wiphy);
4224 int ret;
4225
4226 if (local->started)
4227 return -EOPNOTSUPP;
4228
4229 ret = drv_set_antenna(local, tx_ant, rx_ant);
4230 if (ret)
4231 return ret;
4232
4233 local->rx_chains = hweight8(rx_ant);
4234 return 0;
4235 }
4236
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)4237 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4238 {
4239 struct ieee80211_local *local = wiphy_priv(wiphy);
4240
4241 return drv_get_antenna(local, tx_ant, rx_ant);
4242 }
4243
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)4244 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4245 struct net_device *dev,
4246 struct cfg80211_gtk_rekey_data *data)
4247 {
4248 struct ieee80211_local *local = wiphy_priv(wiphy);
4249 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4250
4251 if (!local->ops->set_rekey_data)
4252 return -EOPNOTSUPP;
4253
4254 drv_set_rekey_data(local, sdata, data);
4255
4256 return 0;
4257 }
4258
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)4259 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4260 const u8 *peer, u64 *cookie)
4261 {
4262 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4263 struct ieee80211_local *local = sdata->local;
4264 struct ieee80211_qos_hdr *nullfunc;
4265 struct sk_buff *skb;
4266 int size = sizeof(*nullfunc);
4267 __le16 fc;
4268 bool qos;
4269 struct ieee80211_tx_info *info;
4270 struct sta_info *sta;
4271 struct ieee80211_chanctx_conf *chanctx_conf;
4272 enum nl80211_band band;
4273 int ret;
4274
4275 /* the lock is needed to assign the cookie later */
4276 lockdep_assert_wiphy(local->hw.wiphy);
4277
4278 rcu_read_lock();
4279 sta = sta_info_get_bss(sdata, peer);
4280 if (!sta) {
4281 ret = -ENOLINK;
4282 goto unlock;
4283 }
4284
4285 qos = sta->sta.wme;
4286
4287 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4288 if (WARN_ON(!chanctx_conf)) {
4289 ret = -EINVAL;
4290 goto unlock;
4291 }
4292 band = chanctx_conf->def.chan->band;
4293
4294 if (qos) {
4295 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4296 IEEE80211_STYPE_QOS_NULLFUNC |
4297 IEEE80211_FCTL_FROMDS);
4298 } else {
4299 size -= 2;
4300 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4301 IEEE80211_STYPE_NULLFUNC |
4302 IEEE80211_FCTL_FROMDS);
4303 }
4304
4305 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4306 if (!skb) {
4307 ret = -ENOMEM;
4308 goto unlock;
4309 }
4310
4311 skb->dev = dev;
4312
4313 skb_reserve(skb, local->hw.extra_tx_headroom);
4314
4315 nullfunc = skb_put(skb, size);
4316 nullfunc->frame_control = fc;
4317 nullfunc->duration_id = 0;
4318 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4319 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4320 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4321 nullfunc->seq_ctrl = 0;
4322
4323 info = IEEE80211_SKB_CB(skb);
4324
4325 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4326 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4327 info->band = band;
4328
4329 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4330 skb->priority = 7;
4331 if (qos)
4332 nullfunc->qos_ctrl = cpu_to_le16(7);
4333
4334 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4335 if (ret) {
4336 kfree_skb(skb);
4337 goto unlock;
4338 }
4339
4340 local_bh_disable();
4341 ieee80211_xmit(sdata, sta, skb);
4342 local_bh_enable();
4343
4344 ret = 0;
4345 unlock:
4346 rcu_read_unlock();
4347
4348 return ret;
4349 }
4350
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)4351 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4352 struct wireless_dev *wdev,
4353 unsigned int link_id,
4354 struct cfg80211_chan_def *chandef)
4355 {
4356 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4357 struct ieee80211_local *local = wiphy_priv(wiphy);
4358 struct ieee80211_chanctx_conf *chanctx_conf;
4359 struct ieee80211_link_data *link;
4360 int ret = -ENODATA;
4361
4362 rcu_read_lock();
4363 link = rcu_dereference(sdata->link[link_id]);
4364 if (!link) {
4365 ret = -ENOLINK;
4366 goto out;
4367 }
4368
4369 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4370 if (chanctx_conf) {
4371 *chandef = link->conf->chanreq.oper;
4372 ret = 0;
4373 } else if (local->open_count > 0 &&
4374 local->open_count == local->virt_monitors &&
4375 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4376 *chandef = local->monitor_chanreq.oper;
4377 ret = 0;
4378 }
4379 out:
4380 rcu_read_unlock();
4381
4382 return ret;
4383 }
4384
4385 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)4386 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4387 {
4388 drv_set_wakeup(wiphy_priv(wiphy), enabled);
4389 }
4390 #endif
4391
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)4392 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4393 struct net_device *dev,
4394 struct cfg80211_qos_map *qos_map)
4395 {
4396 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4397 struct mac80211_qos_map *new_qos_map, *old_qos_map;
4398
4399 if (qos_map) {
4400 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4401 if (!new_qos_map)
4402 return -ENOMEM;
4403 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4404 } else {
4405 /* A NULL qos_map was passed to disable QoS mapping */
4406 new_qos_map = NULL;
4407 }
4408
4409 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4410 rcu_assign_pointer(sdata->qos_map, new_qos_map);
4411 if (old_qos_map)
4412 kfree_rcu(old_qos_map, rcu_head);
4413
4414 return 0;
4415 }
4416
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,struct cfg80211_chan_def * chandef)4417 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4418 struct net_device *dev,
4419 unsigned int link_id,
4420 struct cfg80211_chan_def *chandef)
4421 {
4422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4423 struct ieee80211_link_data *link;
4424 struct ieee80211_chan_req chanreq = { .oper = *chandef };
4425 int ret;
4426 u64 changed = 0;
4427
4428 link = sdata_dereference(sdata->link[link_id], sdata);
4429
4430 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed);
4431 if (ret == 0)
4432 ieee80211_link_info_change_notify(sdata, link, changed);
4433
4434 return ret;
4435 }
4436
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)4437 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4438 u8 tsid, const u8 *peer, u8 up,
4439 u16 admitted_time)
4440 {
4441 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4442 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4443 int ac = ieee802_1d_to_ac[up];
4444
4445 if (sdata->vif.type != NL80211_IFTYPE_STATION)
4446 return -EOPNOTSUPP;
4447
4448 if (!(sdata->wmm_acm & BIT(up)))
4449 return -EINVAL;
4450
4451 if (ifmgd->tx_tspec[ac].admitted_time)
4452 return -EBUSY;
4453
4454 if (admitted_time) {
4455 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4456 ifmgd->tx_tspec[ac].tsid = tsid;
4457 ifmgd->tx_tspec[ac].up = up;
4458 }
4459
4460 return 0;
4461 }
4462
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)4463 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4464 u8 tsid, const u8 *peer)
4465 {
4466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4467 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4468 struct ieee80211_local *local = wiphy_priv(wiphy);
4469 int ac;
4470
4471 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4472 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4473
4474 /* skip unused entries */
4475 if (!tx_tspec->admitted_time)
4476 continue;
4477
4478 if (tx_tspec->tsid != tsid)
4479 continue;
4480
4481 /* due to this new packets will be reassigned to non-ACM ACs */
4482 tx_tspec->up = -1;
4483
4484 /* Make sure that all packets have been sent to avoid to
4485 * restore the QoS params on packets that are still on the
4486 * queues.
4487 */
4488 synchronize_net();
4489 ieee80211_flush_queues(local, sdata, false);
4490
4491 /* restore the normal QoS parameters
4492 * (unconditionally to avoid races)
4493 */
4494 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4495 tx_tspec->downgraded = false;
4496 ieee80211_sta_handle_tspec_ac_params(sdata);
4497
4498 /* finally clear all the data */
4499 memset(tx_tspec, 0, sizeof(*tx_tspec));
4500
4501 return 0;
4502 }
4503
4504 return -ENOENT;
4505 }
4506
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)4507 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4508 u8 inst_id,
4509 enum nl80211_nan_func_term_reason reason,
4510 gfp_t gfp)
4511 {
4512 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4513 struct cfg80211_nan_func *func;
4514 u64 cookie;
4515
4516 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4517 return;
4518
4519 spin_lock_bh(&sdata->u.nan.func_lock);
4520
4521 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4522 if (WARN_ON(!func)) {
4523 spin_unlock_bh(&sdata->u.nan.func_lock);
4524 return;
4525 }
4526
4527 cookie = func->cookie;
4528 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4529
4530 spin_unlock_bh(&sdata->u.nan.func_lock);
4531
4532 cfg80211_free_nan_func(func);
4533
4534 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4535 reason, cookie, gfp);
4536 }
4537 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4538
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)4539 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4540 struct cfg80211_nan_match_params *match,
4541 gfp_t gfp)
4542 {
4543 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4544 struct cfg80211_nan_func *func;
4545
4546 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4547 return;
4548
4549 spin_lock_bh(&sdata->u.nan.func_lock);
4550
4551 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
4552 if (WARN_ON(!func)) {
4553 spin_unlock_bh(&sdata->u.nan.func_lock);
4554 return;
4555 }
4556 match->cookie = func->cookie;
4557
4558 spin_unlock_bh(&sdata->u.nan.func_lock);
4559
4560 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4561 }
4562 EXPORT_SYMBOL(ieee80211_nan_func_match);
4563
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)4564 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4565 struct net_device *dev,
4566 const bool enabled)
4567 {
4568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4569
4570 sdata->u.ap.multicast_to_unicast = enabled;
4571
4572 return 0;
4573 }
4574
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)4575 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4576 struct txq_info *txqi)
4577 {
4578 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4579 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4580 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4581 }
4582
4583 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4584 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4585 txqstats->backlog_packets = txqi->tin.backlog_packets;
4586 }
4587
4588 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4589 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4590 txqstats->flows = txqi->tin.flows;
4591 }
4592
4593 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4594 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4595 txqstats->drops = txqi->cstats.drop_count;
4596 }
4597
4598 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4599 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4600 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4601 }
4602
4603 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4604 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4605 txqstats->overlimit = txqi->tin.overlimit;
4606 }
4607
4608 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4609 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4610 txqstats->collisions = txqi->tin.collisions;
4611 }
4612
4613 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4614 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4615 txqstats->tx_bytes = txqi->tin.tx_bytes;
4616 }
4617
4618 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4619 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4620 txqstats->tx_packets = txqi->tin.tx_packets;
4621 }
4622 }
4623
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)4624 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4625 struct wireless_dev *wdev,
4626 struct cfg80211_txq_stats *txqstats)
4627 {
4628 struct ieee80211_local *local = wiphy_priv(wiphy);
4629 struct ieee80211_sub_if_data *sdata;
4630 int ret = 0;
4631
4632 spin_lock_bh(&local->fq.lock);
4633 rcu_read_lock();
4634
4635 if (wdev) {
4636 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4637 if (!sdata->vif.txq) {
4638 ret = 1;
4639 goto out;
4640 }
4641 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4642 } else {
4643 /* phy stats */
4644 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4645 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4646 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4647 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4648 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4649 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4650 txqstats->backlog_packets = local->fq.backlog;
4651 txqstats->backlog_bytes = local->fq.memory_usage;
4652 txqstats->overlimit = local->fq.overlimit;
4653 txqstats->overmemory = local->fq.overmemory;
4654 txqstats->collisions = local->fq.collisions;
4655 txqstats->max_flows = local->fq.flows_cnt;
4656 }
4657
4658 out:
4659 rcu_read_unlock();
4660 spin_unlock_bh(&local->fq.lock);
4661
4662 return ret;
4663 }
4664
4665 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4666 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4667 struct net_device *dev,
4668 struct cfg80211_ftm_responder_stats *ftm_stats)
4669 {
4670 struct ieee80211_local *local = wiphy_priv(wiphy);
4671 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4672
4673 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4674 }
4675
4676 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4677 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4678 struct cfg80211_pmsr_request *request)
4679 {
4680 struct ieee80211_local *local = wiphy_priv(wiphy);
4681 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4682
4683 return drv_start_pmsr(local, sdata, request);
4684 }
4685
4686 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4687 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4688 struct cfg80211_pmsr_request *request)
4689 {
4690 struct ieee80211_local *local = wiphy_priv(wiphy);
4691 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4692
4693 return drv_abort_pmsr(local, sdata, request);
4694 }
4695
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4696 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4697 struct net_device *dev,
4698 struct cfg80211_tid_config *tid_conf)
4699 {
4700 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4701 struct sta_info *sta;
4702
4703 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4704
4705 if (!sdata->local->ops->set_tid_config)
4706 return -EOPNOTSUPP;
4707
4708 if (!tid_conf->peer)
4709 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4710
4711 sta = sta_info_get_bss(sdata, tid_conf->peer);
4712 if (!sta)
4713 return -ENOENT;
4714
4715 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4716 }
4717
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4718 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4719 struct net_device *dev,
4720 const u8 *peer, u8 tids)
4721 {
4722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4723 struct sta_info *sta;
4724
4725 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4726
4727 if (!sdata->local->ops->reset_tid_config)
4728 return -EOPNOTSUPP;
4729
4730 if (!peer)
4731 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4732
4733 sta = sta_info_get_bss(sdata, peer);
4734 if (!sta)
4735 return -ENOENT;
4736
4737 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4738 }
4739
ieee80211_set_sar_specs(struct wiphy * wiphy,struct cfg80211_sar_specs * sar)4740 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4741 struct cfg80211_sar_specs *sar)
4742 {
4743 struct ieee80211_local *local = wiphy_priv(wiphy);
4744
4745 if (!local->ops->set_sar_specs)
4746 return -EOPNOTSUPP;
4747
4748 return local->ops->set_sar_specs(&local->hw, sar);
4749 }
4750
4751 static int
ieee80211_set_after_color_change_beacon(struct ieee80211_link_data * link,u64 * changed)4752 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link,
4753 u64 *changed)
4754 {
4755 struct ieee80211_sub_if_data *sdata = link->sdata;
4756
4757 switch (sdata->vif.type) {
4758 case NL80211_IFTYPE_AP: {
4759 int ret;
4760
4761 if (!link->u.ap.next_beacon)
4762 return -EINVAL;
4763
4764 ret = ieee80211_assign_beacon(sdata, link,
4765 link->u.ap.next_beacon,
4766 NULL, NULL, changed);
4767 ieee80211_free_next_beacon(link);
4768
4769 if (ret < 0)
4770 return ret;
4771
4772 break;
4773 }
4774 default:
4775 WARN_ON_ONCE(1);
4776 return -EINVAL;
4777 }
4778
4779 return 0;
4780 }
4781
4782 static int
ieee80211_set_color_change_beacon(struct ieee80211_link_data * link,struct cfg80211_color_change_settings * params,u64 * changed)4783 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link,
4784 struct cfg80211_color_change_settings *params,
4785 u64 *changed)
4786 {
4787 struct ieee80211_sub_if_data *sdata = link->sdata;
4788 struct ieee80211_color_change_settings color_change = {};
4789 int err;
4790
4791 switch (sdata->vif.type) {
4792 case NL80211_IFTYPE_AP:
4793 link->u.ap.next_beacon =
4794 cfg80211_beacon_dup(¶ms->beacon_next);
4795 if (!link->u.ap.next_beacon)
4796 return -ENOMEM;
4797
4798 if (params->count <= 1)
4799 break;
4800
4801 color_change.counter_offset_beacon =
4802 params->counter_offset_beacon;
4803 color_change.counter_offset_presp =
4804 params->counter_offset_presp;
4805 color_change.count = params->count;
4806
4807 err = ieee80211_assign_beacon(sdata, link,
4808 ¶ms->beacon_color_change,
4809 NULL, &color_change, changed);
4810 if (err < 0) {
4811 ieee80211_free_next_beacon(link);
4812 return err;
4813 }
4814 break;
4815 default:
4816 return -EOPNOTSUPP;
4817 }
4818
4819 return 0;
4820 }
4821
4822 static void
ieee80211_color_change_bss_config_notify(struct ieee80211_link_data * link,u8 color,int enable,u64 changed)4823 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link,
4824 u8 color, int enable, u64 changed)
4825 {
4826 struct ieee80211_sub_if_data *sdata = link->sdata;
4827
4828 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4829
4830 link->conf->he_bss_color.color = color;
4831 link->conf->he_bss_color.enabled = enable;
4832 changed |= BSS_CHANGED_HE_BSS_COLOR;
4833
4834 ieee80211_link_info_change_notify(sdata, link, changed);
4835
4836 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4837 struct ieee80211_sub_if_data *child;
4838
4839 list_for_each_entry(child, &sdata->local->interfaces, list) {
4840 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4841 child->vif.bss_conf.he_bss_color.color = color;
4842 child->vif.bss_conf.he_bss_color.enabled = enable;
4843 ieee80211_link_info_change_notify(child,
4844 &child->deflink,
4845 BSS_CHANGED_HE_BSS_COLOR);
4846 }
4847 }
4848 }
4849 }
4850
ieee80211_color_change_finalize(struct ieee80211_link_data * link)4851 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link)
4852 {
4853 struct ieee80211_sub_if_data *sdata = link->sdata;
4854 struct ieee80211_local *local = sdata->local;
4855 u64 changed = 0;
4856 int err;
4857
4858 lockdep_assert_wiphy(local->hw.wiphy);
4859
4860 link->conf->color_change_active = false;
4861
4862 err = ieee80211_set_after_color_change_beacon(link, &changed);
4863 if (err) {
4864 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id);
4865 return err;
4866 }
4867
4868 ieee80211_color_change_bss_config_notify(link,
4869 link->conf->color_change_color,
4870 1, changed);
4871 cfg80211_color_change_notify(sdata->dev, link->link_id);
4872
4873 return 0;
4874 }
4875
ieee80211_color_change_finalize_work(struct wiphy * wiphy,struct wiphy_work * work)4876 void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
4877 struct wiphy_work *work)
4878 {
4879 struct ieee80211_link_data *link =
4880 container_of(work, struct ieee80211_link_data,
4881 color_change_finalize_work);
4882 struct ieee80211_sub_if_data *sdata = link->sdata;
4883 struct ieee80211_bss_conf *link_conf = link->conf;
4884 struct ieee80211_local *local = sdata->local;
4885
4886 lockdep_assert_wiphy(local->hw.wiphy);
4887
4888 /* AP might have been stopped while waiting for the lock. */
4889 if (!link_conf->color_change_active)
4890 return;
4891
4892 if (!ieee80211_sdata_running(sdata))
4893 return;
4894
4895 ieee80211_color_change_finalize(link);
4896 }
4897
ieee80211_color_collision_detection_work(struct wiphy * wiphy,struct wiphy_work * work)4898 void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
4899 struct wiphy_work *work)
4900 {
4901 struct ieee80211_link_data *link =
4902 container_of(work, struct ieee80211_link_data,
4903 color_collision_detect_work.work);
4904 struct ieee80211_sub_if_data *sdata = link->sdata;
4905
4906 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap,
4907 link->link_id);
4908 }
4909
ieee80211_color_change_finish(struct ieee80211_vif * vif,u8 link_id)4910 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id)
4911 {
4912 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4913 struct ieee80211_link_data *link;
4914
4915 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4916 return;
4917
4918 rcu_read_lock();
4919
4920 link = rcu_dereference(sdata->link[link_id]);
4921 if (WARN_ON(!link)) {
4922 rcu_read_unlock();
4923 return;
4924 }
4925
4926 wiphy_work_queue(sdata->local->hw.wiphy,
4927 &link->color_change_finalize_work);
4928
4929 rcu_read_unlock();
4930 }
4931 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4932
4933 void
ieee80211_obss_color_collision_notify(struct ieee80211_vif * vif,u64 color_bitmap,u8 link_id)4934 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4935 u64 color_bitmap, u8 link_id)
4936 {
4937 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4938 struct ieee80211_link_data *link;
4939
4940 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4941 return;
4942
4943 rcu_read_lock();
4944
4945 link = rcu_dereference(sdata->link[link_id]);
4946 if (WARN_ON(!link)) {
4947 rcu_read_unlock();
4948 return;
4949 }
4950
4951 if (link->conf->color_change_active || link->conf->csa_active) {
4952 rcu_read_unlock();
4953 return;
4954 }
4955
4956 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy,
4957 &link->color_collision_detect_work)) {
4958 rcu_read_unlock();
4959 return;
4960 }
4961
4962 link->color_bitmap = color_bitmap;
4963 /* queue the color collision detection event every 500 ms in order to
4964 * avoid sending too much netlink messages to userspace.
4965 */
4966 wiphy_delayed_work_queue(sdata->local->hw.wiphy,
4967 &link->color_collision_detect_work,
4968 msecs_to_jiffies(500));
4969
4970 rcu_read_unlock();
4971 }
4972 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
4973
4974 static int
ieee80211_color_change(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_color_change_settings * params)4975 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4976 struct cfg80211_color_change_settings *params)
4977 {
4978 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4979 struct ieee80211_local *local = sdata->local;
4980 struct ieee80211_bss_conf *link_conf;
4981 struct ieee80211_link_data *link;
4982 u8 link_id = params->link_id;
4983 u64 changed = 0;
4984 int err;
4985
4986 lockdep_assert_wiphy(local->hw.wiphy);
4987
4988 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4989 return -EINVAL;
4990
4991 link = wiphy_dereference(wiphy, sdata->link[link_id]);
4992 if (!link)
4993 return -ENOLINK;
4994
4995 link_conf = link->conf;
4996
4997 if (link_conf->nontransmitted)
4998 return -EINVAL;
4999
5000 /* don't allow another color change if one is already active or if csa
5001 * is active
5002 */
5003 if (link_conf->color_change_active || link_conf->csa_active) {
5004 err = -EBUSY;
5005 goto out;
5006 }
5007
5008 err = ieee80211_set_color_change_beacon(link, params, &changed);
5009 if (err)
5010 goto out;
5011
5012 link_conf->color_change_active = true;
5013 link_conf->color_change_color = params->color;
5014
5015 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id);
5016
5017 if (changed)
5018 ieee80211_color_change_bss_config_notify(link, 0, 0, changed);
5019 else
5020 /* if the beacon didn't change, we can finalize immediately */
5021 ieee80211_color_change_finalize(link);
5022
5023 out:
5024
5025 return err;
5026 }
5027
5028 static int
ieee80211_set_radar_background(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)5029 ieee80211_set_radar_background(struct wiphy *wiphy,
5030 struct cfg80211_chan_def *chandef)
5031 {
5032 struct ieee80211_local *local = wiphy_priv(wiphy);
5033
5034 if (!local->ops->set_radar_background)
5035 return -EOPNOTSUPP;
5036
5037 return local->ops->set_radar_background(&local->hw, chandef);
5038 }
5039
ieee80211_add_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)5040 static int ieee80211_add_intf_link(struct wiphy *wiphy,
5041 struct wireless_dev *wdev,
5042 unsigned int link_id)
5043 {
5044 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
5045
5046 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5047
5048 if (wdev->use_4addr)
5049 return -EOPNOTSUPP;
5050
5051 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
5052 }
5053
ieee80211_del_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)5054 static void ieee80211_del_intf_link(struct wiphy *wiphy,
5055 struct wireless_dev *wdev,
5056 unsigned int link_id)
5057 {
5058 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
5059 u16 new_links = wdev->valid_links & ~BIT(link_id);
5060
5061 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5062
5063 /* During the link teardown process, certain functions require the
5064 * link_id to remain in the valid_links bitmap. Therefore, instead
5065 * of removing the link_id from the bitmap, pass a masked value to
5066 * simulate as if link_id does not exist anymore.
5067 */
5068 ieee80211_vif_set_links(sdata, new_links, 0);
5069 }
5070
5071 static int
ieee80211_add_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)5072 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
5073 struct link_station_parameters *params)
5074 {
5075 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5076 struct ieee80211_local *local = wiphy_priv(wiphy);
5077 struct sta_info *sta;
5078 int ret;
5079
5080 lockdep_assert_wiphy(local->hw.wiphy);
5081
5082 sta = sta_info_get_bss(sdata, params->mld_mac);
5083 if (!sta)
5084 return -ENOENT;
5085
5086 if (!sta->sta.valid_links)
5087 return -EINVAL;
5088
5089 if (sta->sta.valid_links & BIT(params->link_id))
5090 return -EALREADY;
5091
5092 ret = ieee80211_sta_allocate_link(sta, params->link_id);
5093 if (ret)
5094 return ret;
5095
5096 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params);
5097 if (ret) {
5098 ieee80211_sta_free_link(sta, params->link_id);
5099 return ret;
5100 }
5101
5102 if (test_sta_flag(sta, WLAN_STA_ASSOC)) {
5103 struct link_sta_info *link_sta;
5104
5105 link_sta = sdata_dereference(sta->link[params->link_id], sdata);
5106 rate_control_rate_init(link_sta);
5107 }
5108
5109 /* ieee80211_sta_activate_link frees the link upon failure */
5110 return ieee80211_sta_activate_link(sta, params->link_id);
5111 }
5112
5113 static int
ieee80211_mod_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)5114 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
5115 struct link_station_parameters *params)
5116 {
5117 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5118 struct ieee80211_local *local = wiphy_priv(wiphy);
5119 struct sta_info *sta;
5120
5121 lockdep_assert_wiphy(local->hw.wiphy);
5122
5123 sta = sta_info_get_bss(sdata, params->mld_mac);
5124 if (!sta)
5125 return -ENOENT;
5126
5127 if (!(sta->sta.valid_links & BIT(params->link_id)))
5128 return -EINVAL;
5129
5130 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY,
5131 params);
5132 }
5133
5134 static int
ieee80211_del_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_del_parameters * params)5135 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
5136 struct link_station_del_parameters *params)
5137 {
5138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5139 struct sta_info *sta;
5140
5141 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5142
5143 sta = sta_info_get_bss(sdata, params->mld_mac);
5144 if (!sta)
5145 return -ENOENT;
5146
5147 if (!(sta->sta.valid_links & BIT(params->link_id)))
5148 return -EINVAL;
5149
5150 /* must not create a STA without links */
5151 if (sta->sta.valid_links == BIT(params->link_id))
5152 return -EINVAL;
5153
5154 ieee80211_sta_remove_link(sta, params->link_id);
5155
5156 return 0;
5157 }
5158
ieee80211_set_hw_timestamp(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_set_hw_timestamp * hwts)5159 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
5160 struct net_device *dev,
5161 struct cfg80211_set_hw_timestamp *hwts)
5162 {
5163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5164 struct ieee80211_local *local = sdata->local;
5165
5166 if (!local->ops->set_hw_timestamp)
5167 return -EOPNOTSUPP;
5168
5169 if (!check_sdata_in_driver(sdata))
5170 return -EIO;
5171
5172 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
5173 }
5174
5175 static int
ieee80211_set_ttlm(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ttlm_params * params)5176 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev,
5177 struct cfg80211_ttlm_params *params)
5178 {
5179 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5180
5181 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5182
5183 return ieee80211_req_neg_ttlm(sdata, params);
5184 }
5185
5186 static int
ieee80211_assoc_ml_reconf(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ml_reconf_req * req)5187 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev,
5188 struct cfg80211_ml_reconf_req *req)
5189 {
5190 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5191
5192 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5193
5194 return ieee80211_mgd_assoc_ml_reconf(sdata, req);
5195 }
5196
5197 static int
ieee80211_set_epcs(struct wiphy * wiphy,struct net_device * dev,bool enable)5198 ieee80211_set_epcs(struct wiphy *wiphy, struct net_device *dev, bool enable)
5199 {
5200 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5201
5202 return ieee80211_mgd_set_epcs(sdata, enable);
5203 }
5204
5205 const struct cfg80211_ops mac80211_config_ops = {
5206 .add_virtual_intf = ieee80211_add_iface,
5207 .del_virtual_intf = ieee80211_del_iface,
5208 .change_virtual_intf = ieee80211_change_iface,
5209 .start_p2p_device = ieee80211_start_p2p_device,
5210 .stop_p2p_device = ieee80211_stop_p2p_device,
5211 .add_key = ieee80211_add_key,
5212 .del_key = ieee80211_del_key,
5213 .get_key = ieee80211_get_key,
5214 .set_default_key = ieee80211_config_default_key,
5215 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5216 .set_default_beacon_key = ieee80211_config_default_beacon_key,
5217 .start_ap = ieee80211_start_ap,
5218 .change_beacon = ieee80211_change_beacon,
5219 .stop_ap = ieee80211_stop_ap,
5220 .add_station = ieee80211_add_station,
5221 .del_station = ieee80211_del_station,
5222 .change_station = ieee80211_change_station,
5223 .get_station = ieee80211_get_station,
5224 .dump_station = ieee80211_dump_station,
5225 .dump_survey = ieee80211_dump_survey,
5226 #ifdef CONFIG_MAC80211_MESH
5227 .add_mpath = ieee80211_add_mpath,
5228 .del_mpath = ieee80211_del_mpath,
5229 .change_mpath = ieee80211_change_mpath,
5230 .get_mpath = ieee80211_get_mpath,
5231 .dump_mpath = ieee80211_dump_mpath,
5232 .get_mpp = ieee80211_get_mpp,
5233 .dump_mpp = ieee80211_dump_mpp,
5234 .update_mesh_config = ieee80211_update_mesh_config,
5235 .get_mesh_config = ieee80211_get_mesh_config,
5236 .join_mesh = ieee80211_join_mesh,
5237 .leave_mesh = ieee80211_leave_mesh,
5238 #endif
5239 .join_ocb = ieee80211_join_ocb,
5240 .leave_ocb = ieee80211_leave_ocb,
5241 .change_bss = ieee80211_change_bss,
5242 .inform_bss = ieee80211_inform_bss,
5243 .set_txq_params = ieee80211_set_txq_params,
5244 .set_monitor_channel = ieee80211_set_monitor_channel,
5245 .suspend = ieee80211_suspend,
5246 .resume = ieee80211_resume,
5247 .scan = ieee80211_scan,
5248 .abort_scan = ieee80211_abort_scan,
5249 .sched_scan_start = ieee80211_sched_scan_start,
5250 .sched_scan_stop = ieee80211_sched_scan_stop,
5251 .auth = ieee80211_auth,
5252 .assoc = ieee80211_assoc,
5253 .deauth = ieee80211_deauth,
5254 .disassoc = ieee80211_disassoc,
5255 .join_ibss = ieee80211_join_ibss,
5256 .leave_ibss = ieee80211_leave_ibss,
5257 .set_mcast_rate = ieee80211_set_mcast_rate,
5258 .set_wiphy_params = ieee80211_set_wiphy_params,
5259 .set_tx_power = ieee80211_set_tx_power,
5260 .get_tx_power = ieee80211_get_tx_power,
5261 .rfkill_poll = ieee80211_rfkill_poll,
5262 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
5263 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
5264 .set_power_mgmt = ieee80211_set_power_mgmt,
5265 .set_bitrate_mask = ieee80211_set_bitrate_mask,
5266 .remain_on_channel = ieee80211_remain_on_channel,
5267 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
5268 .mgmt_tx = ieee80211_mgmt_tx,
5269 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
5270 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
5271 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
5272 .update_mgmt_frame_registrations =
5273 ieee80211_update_mgmt_frame_registrations,
5274 .set_antenna = ieee80211_set_antenna,
5275 .get_antenna = ieee80211_get_antenna,
5276 .set_rekey_data = ieee80211_set_rekey_data,
5277 .tdls_oper = ieee80211_tdls_oper,
5278 .tdls_mgmt = ieee80211_tdls_mgmt,
5279 .tdls_channel_switch = ieee80211_tdls_channel_switch,
5280 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
5281 .probe_client = ieee80211_probe_client,
5282 .set_noack_map = ieee80211_set_noack_map,
5283 #ifdef CONFIG_PM
5284 .set_wakeup = ieee80211_set_wakeup,
5285 #endif
5286 .get_channel = ieee80211_cfg_get_channel,
5287 .start_radar_detection = ieee80211_start_radar_detection,
5288 .end_cac = ieee80211_end_cac,
5289 .channel_switch = ieee80211_channel_switch,
5290 .set_qos_map = ieee80211_set_qos_map,
5291 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
5292 .add_tx_ts = ieee80211_add_tx_ts,
5293 .del_tx_ts = ieee80211_del_tx_ts,
5294 .start_nan = ieee80211_start_nan,
5295 .stop_nan = ieee80211_stop_nan,
5296 .nan_change_conf = ieee80211_nan_change_conf,
5297 .add_nan_func = ieee80211_add_nan_func,
5298 .del_nan_func = ieee80211_del_nan_func,
5299 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5300 .tx_control_port = ieee80211_tx_control_port,
5301 .get_txq_stats = ieee80211_get_txq_stats,
5302 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5303 .start_pmsr = ieee80211_start_pmsr,
5304 .abort_pmsr = ieee80211_abort_pmsr,
5305 .probe_mesh_link = ieee80211_probe_mesh_link,
5306 .set_tid_config = ieee80211_set_tid_config,
5307 .reset_tid_config = ieee80211_reset_tid_config,
5308 .set_sar_specs = ieee80211_set_sar_specs,
5309 .color_change = ieee80211_color_change,
5310 .set_radar_background = ieee80211_set_radar_background,
5311 .add_intf_link = ieee80211_add_intf_link,
5312 .del_intf_link = ieee80211_del_intf_link,
5313 .add_link_station = ieee80211_add_link_station,
5314 .mod_link_station = ieee80211_mod_link_station,
5315 .del_link_station = ieee80211_del_link_station,
5316 .set_hw_timestamp = ieee80211_set_hw_timestamp,
5317 .set_ttlm = ieee80211_set_ttlm,
5318 .get_radio_mask = ieee80211_get_radio_mask,
5319 .assoc_ml_reconf = ieee80211_assoc_ml_reconf,
5320 .set_epcs = ieee80211_set_epcs,
5321 };
5322