1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * mac80211 configuration hooks for cfg80211
4 *
5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
6 * Copyright 2013-2015 Intel Mobile Communications GmbH
7 * Copyright (C) 2015-2017 Intel Deutschland GmbH
8 * Copyright (C) 2018-2024 Intel Corporation
9 */
10
11 #include <linux/ieee80211.h>
12 #include <linux/nl80211.h>
13 #include <linux/rtnetlink.h>
14 #include <linux/slab.h>
15 #include <net/net_namespace.h>
16 #include <linux/rcupdate.h>
17 #include <linux/fips.h>
18 #include <linux/if_ether.h>
19 #include <net/cfg80211.h>
20 #include "ieee80211_i.h"
21 #include "driver-ops.h"
22 #include "rate.h"
23 #include "mesh.h"
24 #include "wme.h"
25
26 static struct ieee80211_link_data *
ieee80211_link_or_deflink(struct ieee80211_sub_if_data * sdata,int link_id,bool require_valid)27 ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id,
28 bool require_valid)
29 {
30 struct ieee80211_link_data *link;
31
32 if (link_id < 0) {
33 /*
34 * For keys, if sdata is not an MLD, we might not use
35 * the return value at all (if it's not a pairwise key),
36 * so in that case (require_valid==false) don't error.
37 */
38 if (require_valid && ieee80211_vif_is_mld(&sdata->vif))
39 return ERR_PTR(-EINVAL);
40
41 return &sdata->deflink;
42 }
43
44 link = sdata_dereference(sdata->link[link_id], sdata);
45 if (!link)
46 return ERR_PTR(-ENOLINK);
47 return link;
48 }
49
ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data * sdata,struct vif_params * params)50 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
51 struct vif_params *params)
52 {
53 bool mu_mimo_groups = false;
54 bool mu_mimo_follow = false;
55
56 if (params->vht_mumimo_groups) {
57 u64 membership;
58
59 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
60
61 memcpy(sdata->vif.bss_conf.mu_group.membership,
62 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
63 memcpy(sdata->vif.bss_conf.mu_group.position,
64 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
65 WLAN_USER_POSITION_LEN);
66 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
67 BSS_CHANGED_MU_GROUPS);
68 /* don't care about endianness - just check for 0 */
69 memcpy(&membership, params->vht_mumimo_groups,
70 WLAN_MEMBERSHIP_LEN);
71 mu_mimo_groups = membership != 0;
72 }
73
74 if (params->vht_mumimo_follow_addr) {
75 mu_mimo_follow =
76 is_valid_ether_addr(params->vht_mumimo_follow_addr);
77 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
78 params->vht_mumimo_follow_addr);
79 }
80
81 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
82 }
83
ieee80211_set_mon_options(struct ieee80211_sub_if_data * sdata,struct vif_params * params)84 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
85 struct vif_params *params)
86 {
87 struct ieee80211_local *local = sdata->local;
88 struct ieee80211_sub_if_data *monitor_sdata;
89
90 /* check flags first */
91 if (params->flags && ieee80211_sdata_running(sdata)) {
92 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
93
94 /*
95 * Prohibit MONITOR_FLAG_COOK_FRAMES and
96 * MONITOR_FLAG_ACTIVE to be changed while the
97 * interface is up.
98 * Else we would need to add a lot of cruft
99 * to update everything:
100 * cooked_mntrs, monitor and all fif_* counters
101 * reconfigure hardware
102 */
103 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
104 return -EBUSY;
105 }
106
107 /* also validate MU-MIMO change */
108 if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
109 monitor_sdata = sdata;
110 else
111 monitor_sdata = wiphy_dereference(local->hw.wiphy,
112 local->monitor_sdata);
113
114 if (!monitor_sdata &&
115 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
116 return -EOPNOTSUPP;
117
118 /* apply all changes now - no failures allowed */
119
120 if (monitor_sdata &&
121 (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
122 ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)))
123 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
124
125 if (params->flags) {
126 if (ieee80211_sdata_running(sdata)) {
127 ieee80211_adjust_monitor_flags(sdata, -1);
128 sdata->u.mntr.flags = params->flags;
129 ieee80211_adjust_monitor_flags(sdata, 1);
130
131 ieee80211_configure_filter(local);
132 } else {
133 /*
134 * Because the interface is down, ieee80211_do_stop
135 * and ieee80211_do_open take care of "everything"
136 * mentioned in the comment above.
137 */
138 sdata->u.mntr.flags = params->flags;
139 }
140 }
141
142 return 0;
143 }
144
ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data * sdata,struct cfg80211_mbssid_config * params,struct ieee80211_bss_conf * link_conf)145 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
146 struct cfg80211_mbssid_config *params,
147 struct ieee80211_bss_conf *link_conf)
148 {
149 struct ieee80211_sub_if_data *tx_sdata;
150
151 sdata->vif.mbssid_tx_vif = NULL;
152 link_conf->bssid_index = 0;
153 link_conf->nontransmitted = false;
154 link_conf->ema_ap = false;
155 link_conf->bssid_indicator = 0;
156
157 if (sdata->vif.type != NL80211_IFTYPE_AP || !params->tx_wdev)
158 return -EINVAL;
159
160 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params->tx_wdev);
161 if (!tx_sdata)
162 return -EINVAL;
163
164 if (tx_sdata == sdata) {
165 sdata->vif.mbssid_tx_vif = &sdata->vif;
166 } else {
167 sdata->vif.mbssid_tx_vif = &tx_sdata->vif;
168 link_conf->nontransmitted = true;
169 link_conf->bssid_index = params->index;
170 }
171 if (params->ema)
172 link_conf->ema_ap = true;
173
174 return 0;
175 }
176
ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)177 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
178 const char *name,
179 unsigned char name_assign_type,
180 enum nl80211_iftype type,
181 struct vif_params *params)
182 {
183 struct ieee80211_local *local = wiphy_priv(wiphy);
184 struct wireless_dev *wdev;
185 struct ieee80211_sub_if_data *sdata;
186 int err;
187
188 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
189 if (err)
190 return ERR_PTR(err);
191
192 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
193
194 if (type == NL80211_IFTYPE_MONITOR) {
195 err = ieee80211_set_mon_options(sdata, params);
196 if (err) {
197 ieee80211_if_remove(sdata);
198 return NULL;
199 }
200 }
201
202 /* Let the driver know that an interface is going to be added.
203 * Indicate so only for interface types that will be added to the
204 * driver.
205 */
206 switch (type) {
207 case NL80211_IFTYPE_AP_VLAN:
208 break;
209 case NL80211_IFTYPE_MONITOR:
210 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) ||
211 !(params->flags & MONITOR_FLAG_ACTIVE))
212 break;
213 fallthrough;
214 default:
215 drv_prep_add_interface(local,
216 ieee80211_vif_type_p2p(&sdata->vif));
217 break;
218 }
219
220 return wdev;
221 }
222
ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)223 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
224 {
225 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
226
227 return 0;
228 }
229
ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)230 static int ieee80211_change_iface(struct wiphy *wiphy,
231 struct net_device *dev,
232 enum nl80211_iftype type,
233 struct vif_params *params)
234 {
235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
236 struct ieee80211_local *local = sdata->local;
237 struct sta_info *sta;
238 int ret;
239
240 lockdep_assert_wiphy(local->hw.wiphy);
241
242 ret = ieee80211_if_change_type(sdata, type);
243 if (ret)
244 return ret;
245
246 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
247 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
248 ieee80211_check_fast_rx_iface(sdata);
249 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
250 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
251
252 if (params->use_4addr == ifmgd->use_4addr)
253 return 0;
254
255 /* FIXME: no support for 4-addr MLO yet */
256 if (ieee80211_vif_is_mld(&sdata->vif))
257 return -EOPNOTSUPP;
258
259 sdata->u.mgd.use_4addr = params->use_4addr;
260 if (!ifmgd->associated)
261 return 0;
262
263 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
264 if (sta)
265 drv_sta_set_4addr(local, sdata, &sta->sta,
266 params->use_4addr);
267
268 if (params->use_4addr)
269 ieee80211_send_4addr_nullfunc(local, sdata);
270 }
271
272 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
273 ret = ieee80211_set_mon_options(sdata, params);
274 if (ret)
275 return ret;
276 }
277
278 return 0;
279 }
280
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)281 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
282 struct wireless_dev *wdev)
283 {
284 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
285 int ret;
286
287 lockdep_assert_wiphy(sdata->local->hw.wiphy);
288
289 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
290 if (ret < 0)
291 return ret;
292
293 return ieee80211_do_open(wdev, true);
294 }
295
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)296 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
297 struct wireless_dev *wdev)
298 {
299 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
300 }
301
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)302 static int ieee80211_start_nan(struct wiphy *wiphy,
303 struct wireless_dev *wdev,
304 struct cfg80211_nan_conf *conf)
305 {
306 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
307 int ret;
308
309 lockdep_assert_wiphy(sdata->local->hw.wiphy);
310
311 ret = ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
312 if (ret < 0)
313 return ret;
314
315 ret = ieee80211_do_open(wdev, true);
316 if (ret)
317 return ret;
318
319 ret = drv_start_nan(sdata->local, sdata, conf);
320 if (ret)
321 ieee80211_sdata_stop(sdata);
322
323 sdata->u.nan.conf = *conf;
324
325 return ret;
326 }
327
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)328 static void ieee80211_stop_nan(struct wiphy *wiphy,
329 struct wireless_dev *wdev)
330 {
331 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
332
333 drv_stop_nan(sdata->local, sdata);
334 ieee80211_sdata_stop(sdata);
335 }
336
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)337 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
338 struct wireless_dev *wdev,
339 struct cfg80211_nan_conf *conf,
340 u32 changes)
341 {
342 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
343 struct cfg80211_nan_conf new_conf;
344 int ret = 0;
345
346 if (sdata->vif.type != NL80211_IFTYPE_NAN)
347 return -EOPNOTSUPP;
348
349 if (!ieee80211_sdata_running(sdata))
350 return -ENETDOWN;
351
352 new_conf = sdata->u.nan.conf;
353
354 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
355 new_conf.master_pref = conf->master_pref;
356
357 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
358 new_conf.bands = conf->bands;
359
360 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
361 if (!ret)
362 sdata->u.nan.conf = new_conf;
363
364 return ret;
365 }
366
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)367 static int ieee80211_add_nan_func(struct wiphy *wiphy,
368 struct wireless_dev *wdev,
369 struct cfg80211_nan_func *nan_func)
370 {
371 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
372 int ret;
373
374 if (sdata->vif.type != NL80211_IFTYPE_NAN)
375 return -EOPNOTSUPP;
376
377 if (!ieee80211_sdata_running(sdata))
378 return -ENETDOWN;
379
380 spin_lock_bh(&sdata->u.nan.func_lock);
381
382 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
383 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
384 GFP_ATOMIC);
385 spin_unlock_bh(&sdata->u.nan.func_lock);
386
387 if (ret < 0)
388 return ret;
389
390 nan_func->instance_id = ret;
391
392 WARN_ON(nan_func->instance_id == 0);
393
394 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
395 if (ret) {
396 spin_lock_bh(&sdata->u.nan.func_lock);
397 idr_remove(&sdata->u.nan.function_inst_ids,
398 nan_func->instance_id);
399 spin_unlock_bh(&sdata->u.nan.func_lock);
400 }
401
402 return ret;
403 }
404
405 static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)406 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
407 u64 cookie)
408 {
409 struct cfg80211_nan_func *func;
410 int id;
411
412 lockdep_assert_held(&sdata->u.nan.func_lock);
413
414 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
415 if (func->cookie == cookie)
416 return func;
417 }
418
419 return NULL;
420 }
421
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)422 static void ieee80211_del_nan_func(struct wiphy *wiphy,
423 struct wireless_dev *wdev, u64 cookie)
424 {
425 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
426 struct cfg80211_nan_func *func;
427 u8 instance_id = 0;
428
429 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
430 !ieee80211_sdata_running(sdata))
431 return;
432
433 spin_lock_bh(&sdata->u.nan.func_lock);
434
435 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
436 if (func)
437 instance_id = func->instance_id;
438
439 spin_unlock_bh(&sdata->u.nan.func_lock);
440
441 if (instance_id)
442 drv_del_nan_func(sdata->local, sdata, instance_id);
443 }
444
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)445 static int ieee80211_set_noack_map(struct wiphy *wiphy,
446 struct net_device *dev,
447 u16 noack_map)
448 {
449 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
450
451 sdata->noack_map = noack_map;
452
453 ieee80211_check_fast_xmit_iface(sdata);
454
455 return 0;
456 }
457
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)458 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
459 const u8 *mac_addr, u8 key_idx)
460 {
461 struct ieee80211_local *local = sdata->local;
462 struct ieee80211_key *key;
463 struct sta_info *sta;
464 int ret = -EINVAL;
465
466 if (!wiphy_ext_feature_isset(local->hw.wiphy,
467 NL80211_EXT_FEATURE_EXT_KEY_ID))
468 return -EINVAL;
469
470 sta = sta_info_get_bss(sdata, mac_addr);
471
472 if (!sta)
473 return -EINVAL;
474
475 if (sta->ptk_idx == key_idx)
476 return 0;
477
478 key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]);
479
480 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
481 ret = ieee80211_set_tx_key(key);
482
483 return ret;
484 }
485
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)486 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
487 int link_id, u8 key_idx, bool pairwise,
488 const u8 *mac_addr, struct key_params *params)
489 {
490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
491 struct ieee80211_link_data *link =
492 ieee80211_link_or_deflink(sdata, link_id, false);
493 struct ieee80211_local *local = sdata->local;
494 struct sta_info *sta = NULL;
495 struct ieee80211_key *key;
496 int err;
497
498 lockdep_assert_wiphy(local->hw.wiphy);
499
500 if (!ieee80211_sdata_running(sdata))
501 return -ENETDOWN;
502
503 if (IS_ERR(link))
504 return PTR_ERR(link);
505
506 if (WARN_ON(pairwise && link_id >= 0))
507 return -EINVAL;
508
509 if (pairwise && params->mode == NL80211_KEY_SET_TX)
510 return ieee80211_set_tx(sdata, mac_addr, key_idx);
511
512 /* reject WEP and TKIP keys if WEP failed to initialize */
513 switch (params->cipher) {
514 case WLAN_CIPHER_SUITE_WEP40:
515 case WLAN_CIPHER_SUITE_TKIP:
516 case WLAN_CIPHER_SUITE_WEP104:
517 if (link_id >= 0)
518 return -EINVAL;
519 if (WARN_ON_ONCE(fips_enabled))
520 return -EINVAL;
521 break;
522 default:
523 break;
524 }
525
526 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
527 params->key, params->seq_len, params->seq);
528 if (IS_ERR(key))
529 return PTR_ERR(key);
530
531 if (pairwise) {
532 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
533 key->conf.link_id = -1;
534 } else {
535 key->conf.link_id = link->link_id;
536 }
537
538 if (params->mode == NL80211_KEY_NO_TX)
539 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
540
541 if (mac_addr) {
542 sta = sta_info_get_bss(sdata, mac_addr);
543 /*
544 * The ASSOC test makes sure the driver is ready to
545 * receive the key. When wpa_supplicant has roamed
546 * using FT, it attempts to set the key before
547 * association has completed, this rejects that attempt
548 * so it will set the key again after association.
549 *
550 * TODO: accept the key if we have a station entry and
551 * add it to the device after the station.
552 */
553 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
554 ieee80211_key_free_unused(key);
555 return -ENOENT;
556 }
557 }
558
559 switch (sdata->vif.type) {
560 case NL80211_IFTYPE_STATION:
561 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
562 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
563 break;
564 case NL80211_IFTYPE_AP:
565 case NL80211_IFTYPE_AP_VLAN:
566 /* Keys without a station are used for TX only */
567 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
568 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
569 break;
570 case NL80211_IFTYPE_ADHOC:
571 /* no MFP (yet) */
572 break;
573 case NL80211_IFTYPE_MESH_POINT:
574 #ifdef CONFIG_MAC80211_MESH
575 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
576 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
577 break;
578 #endif
579 case NL80211_IFTYPE_WDS:
580 case NL80211_IFTYPE_MONITOR:
581 case NL80211_IFTYPE_P2P_DEVICE:
582 case NL80211_IFTYPE_NAN:
583 case NL80211_IFTYPE_UNSPECIFIED:
584 case NUM_NL80211_IFTYPES:
585 case NL80211_IFTYPE_P2P_CLIENT:
586 case NL80211_IFTYPE_P2P_GO:
587 case NL80211_IFTYPE_OCB:
588 /* shouldn't happen */
589 WARN_ON_ONCE(1);
590 break;
591 }
592
593 err = ieee80211_key_link(key, link, sta);
594 /* KRACK protection, shouldn't happen but just silently accept key */
595 if (err == -EALREADY)
596 err = 0;
597
598 return err;
599 }
600
601 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)602 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id,
603 u8 key_idx, bool pairwise, const u8 *mac_addr)
604 {
605 struct ieee80211_local *local __maybe_unused = sdata->local;
606 struct ieee80211_link_data *link = &sdata->deflink;
607 struct ieee80211_key *key;
608
609 if (link_id >= 0) {
610 link = sdata_dereference(sdata->link[link_id], sdata);
611 if (!link)
612 return NULL;
613 }
614
615 if (mac_addr) {
616 struct sta_info *sta;
617 struct link_sta_info *link_sta;
618
619 sta = sta_info_get_bss(sdata, mac_addr);
620 if (!sta)
621 return NULL;
622
623 if (link_id >= 0) {
624 link_sta = rcu_dereference_check(sta->link[link_id],
625 lockdep_is_held(&local->hw.wiphy->mtx));
626 if (!link_sta)
627 return NULL;
628 } else {
629 link_sta = &sta->deflink;
630 }
631
632 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
633 return wiphy_dereference(local->hw.wiphy,
634 sta->ptk[key_idx]);
635
636 if (!pairwise &&
637 key_idx < NUM_DEFAULT_KEYS +
638 NUM_DEFAULT_MGMT_KEYS +
639 NUM_DEFAULT_BEACON_KEYS)
640 return wiphy_dereference(local->hw.wiphy,
641 link_sta->gtk[key_idx]);
642
643 return NULL;
644 }
645
646 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
647 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
648
649 key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]);
650 if (key)
651 return key;
652
653 /* or maybe it was a WEP key */
654 if (key_idx < NUM_DEFAULT_KEYS)
655 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
656
657 return NULL;
658 }
659
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool pairwise,const u8 * mac_addr)660 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
661 int link_id, u8 key_idx, bool pairwise,
662 const u8 *mac_addr)
663 {
664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
665 struct ieee80211_local *local = sdata->local;
666 struct ieee80211_key *key;
667
668 lockdep_assert_wiphy(local->hw.wiphy);
669
670 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
671 if (!key)
672 return -ENOENT;
673
674 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
675
676 return 0;
677 }
678
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))679 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
680 int link_id, u8 key_idx, bool pairwise,
681 const u8 *mac_addr, void *cookie,
682 void (*callback)(void *cookie,
683 struct key_params *params))
684 {
685 struct ieee80211_sub_if_data *sdata;
686 u8 seq[6] = {0};
687 struct key_params params;
688 struct ieee80211_key *key;
689 u64 pn64;
690 u32 iv32;
691 u16 iv16;
692 int err = -ENOENT;
693 struct ieee80211_key_seq kseq = {};
694
695 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
696
697 rcu_read_lock();
698
699 key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
700 if (!key)
701 goto out;
702
703 memset(¶ms, 0, sizeof(params));
704
705 params.cipher = key->conf.cipher;
706
707 switch (key->conf.cipher) {
708 case WLAN_CIPHER_SUITE_TKIP:
709 pn64 = atomic64_read(&key->conf.tx_pn);
710 iv32 = TKIP_PN_TO_IV32(pn64);
711 iv16 = TKIP_PN_TO_IV16(pn64);
712
713 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
714 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
715 drv_get_key_seq(sdata->local, key, &kseq);
716 iv32 = kseq.tkip.iv32;
717 iv16 = kseq.tkip.iv16;
718 }
719
720 seq[0] = iv16 & 0xff;
721 seq[1] = (iv16 >> 8) & 0xff;
722 seq[2] = iv32 & 0xff;
723 seq[3] = (iv32 >> 8) & 0xff;
724 seq[4] = (iv32 >> 16) & 0xff;
725 seq[5] = (iv32 >> 24) & 0xff;
726 params.seq = seq;
727 params.seq_len = 6;
728 break;
729 case WLAN_CIPHER_SUITE_CCMP:
730 case WLAN_CIPHER_SUITE_CCMP_256:
731 case WLAN_CIPHER_SUITE_AES_CMAC:
732 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
733 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
734 offsetof(typeof(kseq), aes_cmac));
735 fallthrough;
736 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
737 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
738 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
739 offsetof(typeof(kseq), aes_gmac));
740 fallthrough;
741 case WLAN_CIPHER_SUITE_GCMP:
742 case WLAN_CIPHER_SUITE_GCMP_256:
743 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
744 offsetof(typeof(kseq), gcmp));
745
746 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
747 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
748 drv_get_key_seq(sdata->local, key, &kseq);
749 memcpy(seq, kseq.ccmp.pn, 6);
750 } else {
751 pn64 = atomic64_read(&key->conf.tx_pn);
752 seq[0] = pn64;
753 seq[1] = pn64 >> 8;
754 seq[2] = pn64 >> 16;
755 seq[3] = pn64 >> 24;
756 seq[4] = pn64 >> 32;
757 seq[5] = pn64 >> 40;
758 }
759 params.seq = seq;
760 params.seq_len = 6;
761 break;
762 default:
763 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
764 break;
765 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
766 break;
767 drv_get_key_seq(sdata->local, key, &kseq);
768 params.seq = kseq.hw.seq;
769 params.seq_len = kseq.hw.seq_len;
770 break;
771 }
772
773 callback(cookie, ¶ms);
774 err = 0;
775
776 out:
777 rcu_read_unlock();
778 return err;
779 }
780
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx,bool uni,bool multi)781 static int ieee80211_config_default_key(struct wiphy *wiphy,
782 struct net_device *dev,
783 int link_id, u8 key_idx, bool uni,
784 bool multi)
785 {
786 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
787 struct ieee80211_link_data *link =
788 ieee80211_link_or_deflink(sdata, link_id, false);
789
790 if (IS_ERR(link))
791 return PTR_ERR(link);
792
793 ieee80211_set_default_key(link, key_idx, uni, multi);
794
795 return 0;
796 }
797
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)798 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
799 struct net_device *dev,
800 int link_id, u8 key_idx)
801 {
802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
803 struct ieee80211_link_data *link =
804 ieee80211_link_or_deflink(sdata, link_id, true);
805
806 if (IS_ERR(link))
807 return PTR_ERR(link);
808
809 ieee80211_set_default_mgmt_key(link, key_idx);
810
811 return 0;
812 }
813
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,int link_id,u8 key_idx)814 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
815 struct net_device *dev,
816 int link_id, u8 key_idx)
817 {
818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
819 struct ieee80211_link_data *link =
820 ieee80211_link_or_deflink(sdata, link_id, true);
821
822 if (IS_ERR(link))
823 return PTR_ERR(link);
824
825 ieee80211_set_default_beacon_key(link, key_idx);
826
827 return 0;
828 }
829
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)830 void sta_set_rate_info_tx(struct sta_info *sta,
831 const struct ieee80211_tx_rate *rate,
832 struct rate_info *rinfo)
833 {
834 rinfo->flags = 0;
835 if (rate->flags & IEEE80211_TX_RC_MCS) {
836 rinfo->flags |= RATE_INFO_FLAGS_MCS;
837 rinfo->mcs = rate->idx;
838 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
839 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
840 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
841 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
842 } else {
843 struct ieee80211_supported_band *sband;
844
845 sband = ieee80211_get_sband(sta->sdata);
846 WARN_ON_ONCE(sband && !sband->bitrates);
847 if (sband && sband->bitrates)
848 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
849 }
850 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
851 rinfo->bw = RATE_INFO_BW_40;
852 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
853 rinfo->bw = RATE_INFO_BW_80;
854 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
855 rinfo->bw = RATE_INFO_BW_160;
856 else
857 rinfo->bw = RATE_INFO_BW_20;
858 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
859 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
860 }
861
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)862 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
863 int idx, u8 *mac, struct station_info *sinfo)
864 {
865 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
866 struct ieee80211_local *local = sdata->local;
867 struct sta_info *sta;
868 int ret = -ENOENT;
869
870 lockdep_assert_wiphy(local->hw.wiphy);
871
872 sta = sta_info_get_by_idx(sdata, idx);
873 if (sta) {
874 ret = 0;
875 memcpy(mac, sta->sta.addr, ETH_ALEN);
876 sta_set_sinfo(sta, sinfo, true);
877 }
878
879 return ret;
880 }
881
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)882 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
883 int idx, struct survey_info *survey)
884 {
885 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
886
887 return drv_get_survey(local, idx, survey);
888 }
889
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)890 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
891 const u8 *mac, struct station_info *sinfo)
892 {
893 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
894 struct ieee80211_local *local = sdata->local;
895 struct sta_info *sta;
896 int ret = -ENOENT;
897
898 lockdep_assert_wiphy(local->hw.wiphy);
899
900 sta = sta_info_get_bss(sdata, mac);
901 if (sta) {
902 ret = 0;
903 sta_set_sinfo(sta, sinfo, true);
904 }
905
906 return ret;
907 }
908
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef)909 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
910 struct net_device *dev,
911 struct cfg80211_chan_def *chandef)
912 {
913 struct ieee80211_local *local = wiphy_priv(wiphy);
914 struct ieee80211_sub_if_data *sdata;
915 struct ieee80211_chan_req chanreq = { .oper = *chandef };
916 int ret;
917
918 lockdep_assert_wiphy(local->hw.wiphy);
919
920 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
921 if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
922 if (cfg80211_chandef_identical(&local->monitor_chanreq.oper,
923 &chanreq.oper))
924 return 0;
925
926 sdata = wiphy_dereference(wiphy, local->monitor_sdata);
927 if (!sdata)
928 goto done;
929 }
930
931 if (rcu_access_pointer(sdata->deflink.conf->chanctx_conf) &&
932 cfg80211_chandef_identical(&sdata->vif.bss_conf.chanreq.oper,
933 &chanreq.oper))
934 return 0;
935
936 ieee80211_link_release_channel(&sdata->deflink);
937 ret = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
938 IEEE80211_CHANCTX_SHARED);
939 if (ret)
940 return ret;
941 done:
942 local->monitor_chanreq = chanreq;
943 return 0;
944 }
945
946 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)947 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
948 const u8 *resp, size_t resp_len,
949 const struct ieee80211_csa_settings *csa,
950 const struct ieee80211_color_change_settings *cca,
951 struct ieee80211_link_data *link)
952 {
953 struct probe_resp *new, *old;
954
955 if (!resp || !resp_len)
956 return 1;
957
958 old = sdata_dereference(link->u.ap.probe_resp, sdata);
959
960 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
961 if (!new)
962 return -ENOMEM;
963
964 new->len = resp_len;
965 memcpy(new->data, resp, resp_len);
966
967 if (csa)
968 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
969 csa->n_counter_offsets_presp *
970 sizeof(new->cntdwn_counter_offsets[0]));
971 else if (cca)
972 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
973
974 rcu_assign_pointer(link->u.ap.probe_resp, new);
975 if (old)
976 kfree_rcu(old, rcu_head);
977
978 return 0;
979 }
980
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)981 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
982 struct cfg80211_fils_discovery *params,
983 struct ieee80211_link_data *link,
984 struct ieee80211_bss_conf *link_conf,
985 u64 *changed)
986 {
987 struct fils_discovery_data *new, *old = NULL;
988 struct ieee80211_fils_discovery *fd;
989
990 if (!params->update)
991 return 0;
992
993 fd = &link_conf->fils_discovery;
994 fd->min_interval = params->min_interval;
995 fd->max_interval = params->max_interval;
996
997 old = sdata_dereference(link->u.ap.fils_discovery, sdata);
998 if (old)
999 kfree_rcu(old, rcu_head);
1000
1001 if (params->tmpl && params->tmpl_len) {
1002 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1003 if (!new)
1004 return -ENOMEM;
1005 new->len = params->tmpl_len;
1006 memcpy(new->data, params->tmpl, params->tmpl_len);
1007 rcu_assign_pointer(link->u.ap.fils_discovery, new);
1008 } else {
1009 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1010 }
1011
1012 *changed |= BSS_CHANGED_FILS_DISCOVERY;
1013 return 0;
1014 }
1015
1016 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)1017 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
1018 struct cfg80211_unsol_bcast_probe_resp *params,
1019 struct ieee80211_link_data *link,
1020 struct ieee80211_bss_conf *link_conf,
1021 u64 *changed)
1022 {
1023 struct unsol_bcast_probe_resp_data *new, *old = NULL;
1024
1025 if (!params->update)
1026 return 0;
1027
1028 link_conf->unsol_bcast_probe_resp_interval = params->interval;
1029
1030 old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
1031 if (old)
1032 kfree_rcu(old, rcu_head);
1033
1034 if (params->tmpl && params->tmpl_len) {
1035 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1036 if (!new)
1037 return -ENOMEM;
1038 new->len = params->tmpl_len;
1039 memcpy(new->data, params->tmpl, params->tmpl_len);
1040 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
1041 } else {
1042 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1043 }
1044
1045 *changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1046 return 0;
1047 }
1048
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)1049 static int ieee80211_set_ftm_responder_params(
1050 struct ieee80211_sub_if_data *sdata,
1051 const u8 *lci, size_t lci_len,
1052 const u8 *civicloc, size_t civicloc_len,
1053 struct ieee80211_bss_conf *link_conf)
1054 {
1055 struct ieee80211_ftm_responder_params *new, *old;
1056 u8 *pos;
1057 int len;
1058
1059 if (!lci_len && !civicloc_len)
1060 return 0;
1061
1062 old = link_conf->ftmr_params;
1063 len = lci_len + civicloc_len;
1064
1065 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
1066 if (!new)
1067 return -ENOMEM;
1068
1069 pos = (u8 *)(new + 1);
1070 if (lci_len) {
1071 new->lci_len = lci_len;
1072 new->lci = pos;
1073 memcpy(pos, lci, lci_len);
1074 pos += lci_len;
1075 }
1076
1077 if (civicloc_len) {
1078 new->civicloc_len = civicloc_len;
1079 new->civicloc = pos;
1080 memcpy(pos, civicloc, civicloc_len);
1081 pos += civicloc_len;
1082 }
1083
1084 link_conf->ftmr_params = new;
1085 kfree(old);
1086
1087 return 0;
1088 }
1089
1090 static int
ieee80211_copy_mbssid_beacon(u8 * pos,struct cfg80211_mbssid_elems * dst,struct cfg80211_mbssid_elems * src)1091 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
1092 struct cfg80211_mbssid_elems *src)
1093 {
1094 int i, offset = 0;
1095
1096 dst->cnt = src->cnt;
1097 for (i = 0; i < src->cnt; i++) {
1098 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1099 dst->elem[i].len = src->elem[i].len;
1100 dst->elem[i].data = pos + offset;
1101 offset += dst->elem[i].len;
1102 }
1103
1104 return offset;
1105 }
1106
1107 static int
ieee80211_copy_rnr_beacon(u8 * pos,struct cfg80211_rnr_elems * dst,struct cfg80211_rnr_elems * src)1108 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst,
1109 struct cfg80211_rnr_elems *src)
1110 {
1111 int i, offset = 0;
1112
1113 for (i = 0; i < src->cnt; i++) {
1114 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1115 dst->elem[i].len = src->elem[i].len;
1116 dst->elem[i].data = pos + offset;
1117 offset += dst->elem[i].len;
1118 }
1119 dst->cnt = src->cnt;
1120
1121 return offset;
1122 }
1123
1124 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)1125 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1126 struct ieee80211_link_data *link,
1127 struct cfg80211_beacon_data *params,
1128 const struct ieee80211_csa_settings *csa,
1129 const struct ieee80211_color_change_settings *cca,
1130 u64 *changed)
1131 {
1132 struct cfg80211_mbssid_elems *mbssid = NULL;
1133 struct cfg80211_rnr_elems *rnr = NULL;
1134 struct beacon_data *new, *old;
1135 int new_head_len, new_tail_len;
1136 int size, err;
1137 u64 _changed = BSS_CHANGED_BEACON;
1138 struct ieee80211_bss_conf *link_conf = link->conf;
1139
1140 old = sdata_dereference(link->u.ap.beacon, sdata);
1141
1142 /* Need to have a beacon head if we don't have one yet */
1143 if (!params->head && !old)
1144 return -EINVAL;
1145
1146 /* new or old head? */
1147 if (params->head)
1148 new_head_len = params->head_len;
1149 else
1150 new_head_len = old->head_len;
1151
1152 /* new or old tail? */
1153 if (params->tail || !old)
1154 /* params->tail_len will be zero for !params->tail */
1155 new_tail_len = params->tail_len;
1156 else
1157 new_tail_len = old->tail_len;
1158
1159 size = sizeof(*new) + new_head_len + new_tail_len;
1160
1161 /* new or old multiple BSSID elements? */
1162 if (params->mbssid_ies) {
1163 mbssid = params->mbssid_ies;
1164 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1165 if (params->rnr_ies) {
1166 rnr = params->rnr_ies;
1167 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1168 }
1169 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1170 mbssid->cnt);
1171 } else if (old && old->mbssid_ies) {
1172 mbssid = old->mbssid_ies;
1173 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1174 if (old && old->rnr_ies) {
1175 rnr = old->rnr_ies;
1176 size += struct_size(new->rnr_ies, elem, rnr->cnt);
1177 }
1178 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1179 mbssid->cnt);
1180 }
1181
1182 new = kzalloc(size, GFP_KERNEL);
1183 if (!new)
1184 return -ENOMEM;
1185
1186 /* start filling the new info now */
1187
1188 /*
1189 * pointers go into the block we allocated,
1190 * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies
1191 */
1192 new->head = ((u8 *) new) + sizeof(*new);
1193 new->tail = new->head + new_head_len;
1194 new->head_len = new_head_len;
1195 new->tail_len = new_tail_len;
1196 /* copy in optional mbssid_ies */
1197 if (mbssid) {
1198 u8 *pos = new->tail + new->tail_len;
1199
1200 new->mbssid_ies = (void *)pos;
1201 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1202 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies,
1203 mbssid);
1204 if (rnr) {
1205 new->rnr_ies = (void *)pos;
1206 pos += struct_size(new->rnr_ies, elem, rnr->cnt);
1207 ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr);
1208 }
1209 /* update bssid_indicator */
1210 link_conf->bssid_indicator =
1211 ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1212 }
1213
1214 if (csa) {
1215 new->cntdwn_current_counter = csa->count;
1216 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1217 csa->n_counter_offsets_beacon *
1218 sizeof(new->cntdwn_counter_offsets[0]));
1219 } else if (cca) {
1220 new->cntdwn_current_counter = cca->count;
1221 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1222 }
1223
1224 /* copy in head */
1225 if (params->head)
1226 memcpy(new->head, params->head, new_head_len);
1227 else
1228 memcpy(new->head, old->head, new_head_len);
1229
1230 /* copy in optional tail */
1231 if (params->tail)
1232 memcpy(new->tail, params->tail, new_tail_len);
1233 else
1234 if (old)
1235 memcpy(new->tail, old->tail, new_tail_len);
1236
1237 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1238 params->probe_resp_len, csa, cca, link);
1239 if (err < 0) {
1240 kfree(new);
1241 return err;
1242 }
1243 if (err == 0)
1244 _changed |= BSS_CHANGED_AP_PROBE_RESP;
1245
1246 if (params->ftm_responder != -1) {
1247 link_conf->ftm_responder = params->ftm_responder;
1248 err = ieee80211_set_ftm_responder_params(sdata,
1249 params->lci,
1250 params->lci_len,
1251 params->civicloc,
1252 params->civicloc_len,
1253 link_conf);
1254
1255 if (err < 0) {
1256 kfree(new);
1257 return err;
1258 }
1259
1260 _changed |= BSS_CHANGED_FTM_RESPONDER;
1261 }
1262
1263 rcu_assign_pointer(link->u.ap.beacon, new);
1264 sdata->u.ap.active = true;
1265
1266 if (old)
1267 kfree_rcu(old, rcu_head);
1268
1269 *changed |= _changed;
1270 return 0;
1271 }
1272
ieee80211_num_beaconing_links(struct ieee80211_sub_if_data * sdata)1273 static u8 ieee80211_num_beaconing_links(struct ieee80211_sub_if_data *sdata)
1274 {
1275 struct ieee80211_link_data *link;
1276 u8 link_id, num = 0;
1277
1278 if (sdata->vif.type != NL80211_IFTYPE_AP &&
1279 sdata->vif.type != NL80211_IFTYPE_P2P_GO)
1280 return num;
1281
1282 if (!sdata->vif.valid_links)
1283 return num;
1284
1285 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
1286 link = sdata_dereference(sdata->link[link_id], sdata);
1287 if (!link)
1288 continue;
1289
1290 if (sdata_dereference(link->u.ap.beacon, sdata))
1291 num++;
1292 }
1293
1294 return num;
1295 }
1296
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1297 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1298 struct cfg80211_ap_settings *params)
1299 {
1300 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1301 struct ieee80211_local *local = sdata->local;
1302 struct beacon_data *old;
1303 struct ieee80211_sub_if_data *vlan;
1304 u64 changed = BSS_CHANGED_BEACON_INT |
1305 BSS_CHANGED_BEACON_ENABLED |
1306 BSS_CHANGED_BEACON |
1307 BSS_CHANGED_P2P_PS |
1308 BSS_CHANGED_TXPOWER |
1309 BSS_CHANGED_TWT;
1310 int i, err;
1311 int prev_beacon_int;
1312 unsigned int link_id = params->beacon.link_id;
1313 struct ieee80211_link_data *link;
1314 struct ieee80211_bss_conf *link_conf;
1315 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
1316
1317 lockdep_assert_wiphy(local->hw.wiphy);
1318
1319 link = sdata_dereference(sdata->link[link_id], sdata);
1320 if (!link)
1321 return -ENOLINK;
1322
1323 link_conf = link->conf;
1324
1325 old = sdata_dereference(link->u.ap.beacon, sdata);
1326 if (old)
1327 return -EALREADY;
1328
1329 link->smps_mode = IEEE80211_SMPS_OFF;
1330
1331 link->needed_rx_chains = sdata->local->rx_chains;
1332
1333 prev_beacon_int = link_conf->beacon_int;
1334 link_conf->beacon_int = params->beacon_interval;
1335
1336 if (params->ht_cap)
1337 link_conf->ht_ldpc =
1338 params->ht_cap->cap_info &
1339 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING);
1340
1341 if (params->vht_cap) {
1342 link_conf->vht_ldpc =
1343 params->vht_cap->vht_cap_info &
1344 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC);
1345 link_conf->vht_su_beamformer =
1346 params->vht_cap->vht_cap_info &
1347 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
1348 link_conf->vht_su_beamformee =
1349 params->vht_cap->vht_cap_info &
1350 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
1351 link_conf->vht_mu_beamformer =
1352 params->vht_cap->vht_cap_info &
1353 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
1354 link_conf->vht_mu_beamformee =
1355 params->vht_cap->vht_cap_info &
1356 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
1357 }
1358
1359 if (params->he_cap && params->he_oper) {
1360 link_conf->he_support = true;
1361 link_conf->htc_trig_based_pkt_ext =
1362 le32_get_bits(params->he_oper->he_oper_params,
1363 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1364 link_conf->frame_time_rts_th =
1365 le32_get_bits(params->he_oper->he_oper_params,
1366 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1367 changed |= BSS_CHANGED_HE_OBSS_PD;
1368
1369 if (params->beacon.he_bss_color.enabled)
1370 changed |= BSS_CHANGED_HE_BSS_COLOR;
1371 }
1372
1373 if (params->he_cap) {
1374 link_conf->he_ldpc =
1375 params->he_cap->phy_cap_info[1] &
1376 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
1377 link_conf->he_su_beamformer =
1378 params->he_cap->phy_cap_info[3] &
1379 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
1380 link_conf->he_su_beamformee =
1381 params->he_cap->phy_cap_info[4] &
1382 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
1383 link_conf->he_mu_beamformer =
1384 params->he_cap->phy_cap_info[4] &
1385 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
1386 link_conf->he_full_ul_mumimo =
1387 params->he_cap->phy_cap_info[2] &
1388 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
1389 }
1390
1391 if (params->eht_cap) {
1392 if (!link_conf->he_support)
1393 return -EOPNOTSUPP;
1394
1395 link_conf->eht_support = true;
1396
1397 link_conf->eht_su_beamformer =
1398 params->eht_cap->fixed.phy_cap_info[0] &
1399 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER;
1400 link_conf->eht_su_beamformee =
1401 params->eht_cap->fixed.phy_cap_info[0] &
1402 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
1403 link_conf->eht_mu_beamformer =
1404 params->eht_cap->fixed.phy_cap_info[7] &
1405 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
1406 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
1407 IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ);
1408 link_conf->eht_80mhz_full_bw_ul_mumimo =
1409 params->eht_cap->fixed.phy_cap_info[7] &
1410 (IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
1411 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
1412 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ);
1413 } else {
1414 link_conf->eht_su_beamformer = false;
1415 link_conf->eht_su_beamformee = false;
1416 link_conf->eht_mu_beamformer = false;
1417 }
1418
1419 if (sdata->vif.type == NL80211_IFTYPE_AP &&
1420 params->mbssid_config.tx_wdev) {
1421 err = ieee80211_set_ap_mbssid_options(sdata,
1422 ¶ms->mbssid_config,
1423 link_conf);
1424 if (err)
1425 return err;
1426 }
1427
1428 err = ieee80211_link_use_channel(link, &chanreq,
1429 IEEE80211_CHANCTX_SHARED);
1430 if (!err)
1431 ieee80211_link_copy_chanctx_to_vlans(link, false);
1432 if (err) {
1433 link_conf->beacon_int = prev_beacon_int;
1434 return err;
1435 }
1436
1437 /*
1438 * Apply control port protocol, this allows us to
1439 * not encrypt dynamic WEP control frames.
1440 */
1441 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1442 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1443 sdata->control_port_over_nl80211 =
1444 params->crypto.control_port_over_nl80211;
1445 sdata->control_port_no_preauth =
1446 params->crypto.control_port_no_preauth;
1447
1448 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1449 vlan->control_port_protocol =
1450 params->crypto.control_port_ethertype;
1451 vlan->control_port_no_encrypt =
1452 params->crypto.control_port_no_encrypt;
1453 vlan->control_port_over_nl80211 =
1454 params->crypto.control_port_over_nl80211;
1455 vlan->control_port_no_preauth =
1456 params->crypto.control_port_no_preauth;
1457 }
1458
1459 link_conf->dtim_period = params->dtim_period;
1460 link_conf->enable_beacon = true;
1461 link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1462 link_conf->twt_responder = params->twt_responder;
1463 link_conf->he_obss_pd = params->he_obss_pd;
1464 link_conf->he_bss_color = params->beacon.he_bss_color;
1465 sdata->vif.cfg.s1g = params->chandef.chan->band ==
1466 NL80211_BAND_S1GHZ;
1467
1468 sdata->vif.cfg.ssid_len = params->ssid_len;
1469 if (params->ssid_len)
1470 memcpy(sdata->vif.cfg.ssid, params->ssid,
1471 params->ssid_len);
1472 link_conf->hidden_ssid =
1473 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1474
1475 memset(&link_conf->p2p_noa_attr, 0,
1476 sizeof(link_conf->p2p_noa_attr));
1477 link_conf->p2p_noa_attr.oppps_ctwindow =
1478 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1479 if (params->p2p_opp_ps)
1480 link_conf->p2p_noa_attr.oppps_ctwindow |=
1481 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1482
1483 sdata->beacon_rate_set = false;
1484 if (wiphy_ext_feature_isset(local->hw.wiphy,
1485 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1486 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1487 sdata->beacon_rateidx_mask[i] =
1488 params->beacon_rate.control[i].legacy;
1489 if (sdata->beacon_rateidx_mask[i])
1490 sdata->beacon_rate_set = true;
1491 }
1492 }
1493
1494 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1495 link_conf->beacon_tx_rate = params->beacon_rate;
1496
1497 err = ieee80211_assign_beacon(sdata, link, ¶ms->beacon, NULL, NULL,
1498 &changed);
1499 if (err < 0)
1500 goto error;
1501
1502 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery,
1503 link, link_conf, &changed);
1504 if (err < 0)
1505 goto error;
1506
1507 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1508 ¶ms->unsol_bcast_probe_resp,
1509 link, link_conf, &changed);
1510 if (err < 0)
1511 goto error;
1512
1513 err = drv_start_ap(sdata->local, sdata, link_conf);
1514 if (err) {
1515 old = sdata_dereference(link->u.ap.beacon, sdata);
1516
1517 if (old)
1518 kfree_rcu(old, rcu_head);
1519 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1520
1521 if (ieee80211_num_beaconing_links(sdata) == 0)
1522 sdata->u.ap.active = false;
1523
1524 goto error;
1525 }
1526
1527 ieee80211_recalc_dtim(local, sdata);
1528 ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1529 ieee80211_link_info_change_notify(sdata, link, changed);
1530
1531 if (ieee80211_num_beaconing_links(sdata) <= 1)
1532 netif_carrier_on(dev);
1533
1534 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1535 netif_carrier_on(vlan->dev);
1536
1537 return 0;
1538
1539 error:
1540 ieee80211_link_release_channel(link);
1541
1542 return err;
1543 }
1544
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_update * params)1545 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1546 struct cfg80211_ap_update *params)
1547
1548 {
1549 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1550 struct ieee80211_link_data *link;
1551 struct cfg80211_beacon_data *beacon = ¶ms->beacon;
1552 struct beacon_data *old;
1553 int err;
1554 struct ieee80211_bss_conf *link_conf;
1555 u64 changed = 0;
1556
1557 lockdep_assert_wiphy(wiphy);
1558
1559 link = sdata_dereference(sdata->link[beacon->link_id], sdata);
1560 if (!link)
1561 return -ENOLINK;
1562
1563 link_conf = link->conf;
1564
1565 /* don't allow changing the beacon while a countdown is in place - offset
1566 * of channel switch counter may change
1567 */
1568 if (link_conf->csa_active || link_conf->color_change_active)
1569 return -EBUSY;
1570
1571 old = sdata_dereference(link->u.ap.beacon, sdata);
1572 if (!old)
1573 return -ENOENT;
1574
1575 err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL,
1576 &changed);
1577 if (err < 0)
1578 return err;
1579
1580 err = ieee80211_set_fils_discovery(sdata, ¶ms->fils_discovery,
1581 link, link_conf, &changed);
1582 if (err < 0)
1583 return err;
1584
1585 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1586 ¶ms->unsol_bcast_probe_resp,
1587 link, link_conf, &changed);
1588 if (err < 0)
1589 return err;
1590
1591 if (beacon->he_bss_color_valid &&
1592 beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1593 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled;
1594 changed |= BSS_CHANGED_HE_BSS_COLOR;
1595 }
1596
1597 ieee80211_link_info_change_notify(sdata, link, changed);
1598 return 0;
1599 }
1600
ieee80211_free_next_beacon(struct ieee80211_link_data * link)1601 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1602 {
1603 if (!link->u.ap.next_beacon)
1604 return;
1605
1606 kfree(link->u.ap.next_beacon->mbssid_ies);
1607 kfree(link->u.ap.next_beacon->rnr_ies);
1608 kfree(link->u.ap.next_beacon);
1609 link->u.ap.next_beacon = NULL;
1610 }
1611
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)1612 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1613 unsigned int link_id)
1614 {
1615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1616 struct ieee80211_sub_if_data *vlan;
1617 struct ieee80211_local *local = sdata->local;
1618 struct beacon_data *old_beacon;
1619 struct probe_resp *old_probe_resp;
1620 struct fils_discovery_data *old_fils_discovery;
1621 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1622 struct cfg80211_chan_def chandef;
1623 struct ieee80211_link_data *link =
1624 sdata_dereference(sdata->link[link_id], sdata);
1625 struct ieee80211_bss_conf *link_conf = link->conf;
1626 LIST_HEAD(keys);
1627
1628 lockdep_assert_wiphy(local->hw.wiphy);
1629
1630 old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1631 if (!old_beacon)
1632 return -ENOENT;
1633 old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1634 sdata);
1635 old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1636 sdata);
1637 old_unsol_bcast_probe_resp =
1638 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1639 sdata);
1640
1641 /* abort any running channel switch or color change */
1642 link_conf->csa_active = false;
1643 link_conf->color_change_active = false;
1644 ieee80211_vif_unblock_queues_csa(sdata);
1645
1646 ieee80211_free_next_beacon(link);
1647
1648 /* turn off carrier for this interface and dependent VLANs */
1649 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1650 netif_carrier_off(vlan->dev);
1651
1652 if (ieee80211_num_beaconing_links(sdata) <= 1) {
1653 netif_carrier_off(dev);
1654 sdata->u.ap.active = false;
1655 }
1656
1657 /* remove beacon and probe response */
1658 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1659 RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1660 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1661 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1662 kfree_rcu(old_beacon, rcu_head);
1663 if (old_probe_resp)
1664 kfree_rcu(old_probe_resp, rcu_head);
1665 if (old_fils_discovery)
1666 kfree_rcu(old_fils_discovery, rcu_head);
1667 if (old_unsol_bcast_probe_resp)
1668 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1669
1670 kfree(link_conf->ftmr_params);
1671 link_conf->ftmr_params = NULL;
1672
1673 sdata->vif.mbssid_tx_vif = NULL;
1674 link_conf->bssid_index = 0;
1675 link_conf->nontransmitted = false;
1676 link_conf->ema_ap = false;
1677 link_conf->bssid_indicator = 0;
1678
1679 __sta_info_flush(sdata, true, link_id, NULL);
1680
1681 ieee80211_remove_link_keys(link, &keys);
1682 if (!list_empty(&keys)) {
1683 synchronize_net();
1684 ieee80211_free_key_list(local, &keys);
1685 }
1686
1687 link_conf->enable_beacon = false;
1688 sdata->beacon_rate_set = false;
1689 sdata->vif.cfg.ssid_len = 0;
1690 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1691 ieee80211_link_info_change_notify(sdata, link,
1692 BSS_CHANGED_BEACON_ENABLED);
1693
1694 if (sdata->wdev.links[link_id].cac_started) {
1695 chandef = link_conf->chanreq.oper;
1696 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
1697 cfg80211_cac_event(sdata->dev, &chandef,
1698 NL80211_RADAR_CAC_ABORTED,
1699 GFP_KERNEL, link_id);
1700 }
1701
1702 drv_stop_ap(sdata->local, sdata, link_conf);
1703
1704 /* free all potentially still buffered bcast frames */
1705 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1706 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1707
1708 ieee80211_link_copy_chanctx_to_vlans(link, true);
1709 ieee80211_link_release_channel(link);
1710
1711 return 0;
1712 }
1713
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1714 static int sta_apply_auth_flags(struct ieee80211_local *local,
1715 struct sta_info *sta,
1716 u32 mask, u32 set)
1717 {
1718 int ret;
1719
1720 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1721 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1722 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1723 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1724 if (ret)
1725 return ret;
1726 }
1727
1728 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1729 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1730 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1731 /*
1732 * When peer becomes associated, init rate control as
1733 * well. Some drivers require rate control initialized
1734 * before drv_sta_state() is called.
1735 */
1736 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1737 rate_control_rate_init_all_links(sta);
1738
1739 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1740 if (ret)
1741 return ret;
1742 }
1743
1744 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1745 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1746 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1747 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1748 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1749 else
1750 ret = 0;
1751 if (ret)
1752 return ret;
1753 }
1754
1755 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1756 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1757 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1758 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1759 if (ret)
1760 return ret;
1761 }
1762
1763 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1764 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1765 test_sta_flag(sta, WLAN_STA_AUTH)) {
1766 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1767 if (ret)
1768 return ret;
1769 }
1770
1771 return 0;
1772 }
1773
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1774 static void sta_apply_mesh_params(struct ieee80211_local *local,
1775 struct sta_info *sta,
1776 struct station_parameters *params)
1777 {
1778 #ifdef CONFIG_MAC80211_MESH
1779 struct ieee80211_sub_if_data *sdata = sta->sdata;
1780 u64 changed = 0;
1781
1782 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1783 switch (params->plink_state) {
1784 case NL80211_PLINK_ESTAB:
1785 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1786 changed = mesh_plink_inc_estab_count(sdata);
1787 sta->mesh->plink_state = params->plink_state;
1788 sta->mesh->aid = params->peer_aid;
1789
1790 ieee80211_mps_sta_status_update(sta);
1791 changed |= ieee80211_mps_set_sta_local_pm(sta,
1792 sdata->u.mesh.mshcfg.power_mode);
1793
1794 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1795 /* init at low value */
1796 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1797
1798 break;
1799 case NL80211_PLINK_LISTEN:
1800 case NL80211_PLINK_BLOCKED:
1801 case NL80211_PLINK_OPN_SNT:
1802 case NL80211_PLINK_OPN_RCVD:
1803 case NL80211_PLINK_CNF_RCVD:
1804 case NL80211_PLINK_HOLDING:
1805 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1806 changed = mesh_plink_dec_estab_count(sdata);
1807 sta->mesh->plink_state = params->plink_state;
1808
1809 ieee80211_mps_sta_status_update(sta);
1810 changed |= ieee80211_mps_set_sta_local_pm(sta,
1811 NL80211_MESH_POWER_UNKNOWN);
1812 break;
1813 default:
1814 /* nothing */
1815 break;
1816 }
1817 }
1818
1819 switch (params->plink_action) {
1820 case NL80211_PLINK_ACTION_NO_ACTION:
1821 /* nothing */
1822 break;
1823 case NL80211_PLINK_ACTION_OPEN:
1824 changed |= mesh_plink_open(sta);
1825 break;
1826 case NL80211_PLINK_ACTION_BLOCK:
1827 changed |= mesh_plink_block(sta);
1828 break;
1829 }
1830
1831 if (params->local_pm)
1832 changed |= ieee80211_mps_set_sta_local_pm(sta,
1833 params->local_pm);
1834
1835 ieee80211_mbss_info_change_notify(sdata, changed);
1836 #endif
1837 }
1838
1839 enum sta_link_apply_mode {
1840 STA_LINK_MODE_NEW,
1841 STA_LINK_MODE_STA_MODIFY,
1842 STA_LINK_MODE_LINK_MODIFY,
1843 };
1844
sta_link_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,enum sta_link_apply_mode mode,struct link_station_parameters * params)1845 static int sta_link_apply_parameters(struct ieee80211_local *local,
1846 struct sta_info *sta,
1847 enum sta_link_apply_mode mode,
1848 struct link_station_parameters *params)
1849 {
1850 struct ieee80211_supported_band *sband;
1851 struct ieee80211_sub_if_data *sdata = sta->sdata;
1852 u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1853 struct ieee80211_link_data *link =
1854 sdata_dereference(sdata->link[link_id], sdata);
1855 struct link_sta_info *link_sta =
1856 rcu_dereference_protected(sta->link[link_id],
1857 lockdep_is_held(&local->hw.wiphy->mtx));
1858 bool changes = params->link_mac ||
1859 params->txpwr_set ||
1860 params->supported_rates_len ||
1861 params->ht_capa ||
1862 params->vht_capa ||
1863 params->he_capa ||
1864 params->eht_capa ||
1865 params->opmode_notif_used;
1866
1867 switch (mode) {
1868 case STA_LINK_MODE_NEW:
1869 if (!params->link_mac)
1870 return -EINVAL;
1871 break;
1872 case STA_LINK_MODE_LINK_MODIFY:
1873 break;
1874 case STA_LINK_MODE_STA_MODIFY:
1875 if (params->link_id >= 0)
1876 break;
1877 if (!changes)
1878 return 0;
1879 break;
1880 }
1881
1882 if (!link || !link_sta)
1883 return -EINVAL;
1884
1885 sband = ieee80211_get_link_sband(link);
1886 if (!sband)
1887 return -EINVAL;
1888
1889 if (params->link_mac) {
1890 if (mode == STA_LINK_MODE_NEW) {
1891 memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1892 memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1893 } else if (!ether_addr_equal(link_sta->addr,
1894 params->link_mac)) {
1895 return -EINVAL;
1896 }
1897 }
1898
1899 if (params->txpwr_set) {
1900 int ret;
1901
1902 link_sta->pub->txpwr.type = params->txpwr.type;
1903 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1904 link_sta->pub->txpwr.power = params->txpwr.power;
1905 ret = drv_sta_set_txpwr(local, sdata, sta);
1906 if (ret)
1907 return ret;
1908 }
1909
1910 if (params->supported_rates &&
1911 params->supported_rates_len) {
1912 ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
1913 sband, params->supported_rates,
1914 params->supported_rates_len,
1915 &link_sta->pub->supp_rates[sband->band]);
1916 }
1917
1918 if (params->ht_capa)
1919 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1920 params->ht_capa, link_sta);
1921
1922 /* VHT can override some HT caps such as the A-MSDU max length */
1923 if (params->vht_capa)
1924 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1925 params->vht_capa, NULL,
1926 link_sta);
1927
1928 if (params->he_capa)
1929 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1930 (void *)params->he_capa,
1931 params->he_capa_len,
1932 (void *)params->he_6ghz_capa,
1933 link_sta);
1934
1935 if (params->he_capa && params->eht_capa)
1936 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1937 (u8 *)params->he_capa,
1938 params->he_capa_len,
1939 params->eht_capa,
1940 params->eht_capa_len,
1941 link_sta);
1942
1943 ieee80211_sta_init_nss(link_sta);
1944
1945 if (params->opmode_notif_used) {
1946 /* returned value is only needed for rc update, but the
1947 * rc isn't initialized here yet, so ignore it
1948 */
1949 __ieee80211_vht_handle_opmode(sdata, link_sta,
1950 params->opmode_notif,
1951 sband->band);
1952 }
1953
1954 return 0;
1955 }
1956
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1957 static int sta_apply_parameters(struct ieee80211_local *local,
1958 struct sta_info *sta,
1959 struct station_parameters *params)
1960 {
1961 struct ieee80211_sub_if_data *sdata = sta->sdata;
1962 u32 mask, set;
1963 int ret = 0;
1964
1965 mask = params->sta_flags_mask;
1966 set = params->sta_flags_set;
1967
1968 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1969 /*
1970 * In mesh mode, ASSOCIATED isn't part of the nl80211
1971 * API but must follow AUTHENTICATED for driver state.
1972 */
1973 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1974 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1975 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1976 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1977 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1978 /*
1979 * TDLS -- everything follows authorized, but
1980 * only becoming authorized is possible, not
1981 * going back
1982 */
1983 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1984 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1985 BIT(NL80211_STA_FLAG_ASSOCIATED);
1986 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1987 BIT(NL80211_STA_FLAG_ASSOCIATED);
1988 }
1989 }
1990
1991 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1992 local->hw.queues >= IEEE80211_NUM_ACS)
1993 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1994
1995 /* auth flags will be set later for TDLS,
1996 * and for unassociated stations that move to associated */
1997 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1998 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1999 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
2000 ret = sta_apply_auth_flags(local, sta, mask, set);
2001 if (ret)
2002 return ret;
2003 }
2004
2005 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
2006 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
2007 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
2008 else
2009 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
2010 }
2011
2012 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
2013 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
2014 if (set & BIT(NL80211_STA_FLAG_MFP))
2015 set_sta_flag(sta, WLAN_STA_MFP);
2016 else
2017 clear_sta_flag(sta, WLAN_STA_MFP);
2018 }
2019
2020 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
2021 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2022 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
2023 else
2024 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
2025 }
2026
2027 if (mask & BIT(NL80211_STA_FLAG_SPP_AMSDU))
2028 sta->sta.spp_amsdu = set & BIT(NL80211_STA_FLAG_SPP_AMSDU);
2029
2030 /* mark TDLS channel switch support, if the AP allows it */
2031 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2032 !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
2033 params->ext_capab_len >= 4 &&
2034 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
2035 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
2036
2037 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2038 !sdata->u.mgd.tdls_wider_bw_prohibited &&
2039 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
2040 params->ext_capab_len >= 8 &&
2041 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
2042 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
2043
2044 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
2045 sta->sta.uapsd_queues = params->uapsd_queues;
2046 sta->sta.max_sp = params->max_sp;
2047 }
2048
2049 ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
2050 params->ext_capab_len);
2051
2052 /*
2053 * cfg80211 validates this (1-2007) and allows setting the AID
2054 * only when creating a new station entry
2055 */
2056 if (params->aid)
2057 sta->sta.aid = params->aid;
2058
2059 /*
2060 * Some of the following updates would be racy if called on an
2061 * existing station, via ieee80211_change_station(). However,
2062 * all such changes are rejected by cfg80211 except for updates
2063 * changing the supported rates on an existing but not yet used
2064 * TDLS peer.
2065 */
2066
2067 if (params->listen_interval >= 0)
2068 sta->listen_interval = params->listen_interval;
2069
2070 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_STA_MODIFY,
2071 ¶ms->link_sta_params);
2072 if (ret)
2073 return ret;
2074
2075 if (params->support_p2p_ps >= 0)
2076 sta->sta.support_p2p_ps = params->support_p2p_ps;
2077
2078 if (ieee80211_vif_is_mesh(&sdata->vif))
2079 sta_apply_mesh_params(local, sta, params);
2080
2081 if (params->airtime_weight)
2082 sta->airtime_weight = params->airtime_weight;
2083
2084 /* set the STA state after all sta info from usermode has been set */
2085 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
2086 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
2087 ret = sta_apply_auth_flags(local, sta, mask, set);
2088 if (ret)
2089 return ret;
2090 }
2091
2092 /* Mark the STA as MLO if MLD MAC address is available */
2093 if (params->link_sta_params.mld_mac)
2094 sta->sta.mlo = true;
2095
2096 return 0;
2097 }
2098
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2099 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2100 const u8 *mac,
2101 struct station_parameters *params)
2102 {
2103 struct ieee80211_local *local = wiphy_priv(wiphy);
2104 struct sta_info *sta;
2105 struct ieee80211_sub_if_data *sdata;
2106 int err;
2107
2108 lockdep_assert_wiphy(local->hw.wiphy);
2109
2110 if (params->vlan) {
2111 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2112
2113 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2114 sdata->vif.type != NL80211_IFTYPE_AP)
2115 return -EINVAL;
2116 } else
2117 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2118
2119 if (ether_addr_equal(mac, sdata->vif.addr))
2120 return -EINVAL;
2121
2122 if (!is_valid_ether_addr(mac))
2123 return -EINVAL;
2124
2125 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
2126 sdata->vif.type == NL80211_IFTYPE_STATION &&
2127 !sdata->u.mgd.associated)
2128 return -EINVAL;
2129
2130 /*
2131 * If we have a link ID, it can be a non-MLO station on an AP MLD,
2132 * but we need to have a link_mac in that case as well, so use the
2133 * STA's MAC address in that case.
2134 */
2135 if (params->link_sta_params.link_id >= 0)
2136 sta = sta_info_alloc_with_link(sdata, mac,
2137 params->link_sta_params.link_id,
2138 params->link_sta_params.link_mac ?: mac,
2139 GFP_KERNEL);
2140 else
2141 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
2142
2143 if (!sta)
2144 return -ENOMEM;
2145
2146 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2147 sta->sta.tdls = true;
2148
2149 /* Though the mutex is not needed here (since the station is not
2150 * visible yet), sta_apply_parameters (and inner functions) require
2151 * the mutex due to other paths.
2152 */
2153 err = sta_apply_parameters(local, sta, params);
2154 if (err) {
2155 sta_info_free(local, sta);
2156 return err;
2157 }
2158
2159 /*
2160 * for TDLS and for unassociated station, rate control should be
2161 * initialized only when rates are known and station is marked
2162 * authorized/associated
2163 */
2164 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2165 test_sta_flag(sta, WLAN_STA_ASSOC))
2166 rate_control_rate_init_all_links(sta);
2167
2168 return sta_info_insert(sta);
2169 }
2170
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)2171 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2172 struct station_del_parameters *params)
2173 {
2174 struct ieee80211_sub_if_data *sdata;
2175
2176 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2177
2178 if (params->mac)
2179 return sta_info_destroy_addr_bss(sdata, params->mac);
2180
2181 sta_info_flush(sdata, params->link_id);
2182 return 0;
2183 }
2184
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)2185 static int ieee80211_change_station(struct wiphy *wiphy,
2186 struct net_device *dev, const u8 *mac,
2187 struct station_parameters *params)
2188 {
2189 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2190 struct ieee80211_local *local = wiphy_priv(wiphy);
2191 struct sta_info *sta;
2192 struct ieee80211_sub_if_data *vlansdata;
2193 enum cfg80211_station_type statype;
2194 int err;
2195
2196 lockdep_assert_wiphy(local->hw.wiphy);
2197
2198 sta = sta_info_get_bss(sdata, mac);
2199 if (!sta)
2200 return -ENOENT;
2201
2202 switch (sdata->vif.type) {
2203 case NL80211_IFTYPE_MESH_POINT:
2204 if (sdata->u.mesh.user_mpm)
2205 statype = CFG80211_STA_MESH_PEER_USER;
2206 else
2207 statype = CFG80211_STA_MESH_PEER_KERNEL;
2208 break;
2209 case NL80211_IFTYPE_ADHOC:
2210 statype = CFG80211_STA_IBSS;
2211 break;
2212 case NL80211_IFTYPE_STATION:
2213 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2214 statype = CFG80211_STA_AP_STA;
2215 break;
2216 }
2217 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2218 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2219 else
2220 statype = CFG80211_STA_TDLS_PEER_SETUP;
2221 break;
2222 case NL80211_IFTYPE_AP:
2223 case NL80211_IFTYPE_AP_VLAN:
2224 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2225 statype = CFG80211_STA_AP_CLIENT;
2226 else
2227 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2228 break;
2229 default:
2230 return -EOPNOTSUPP;
2231 }
2232
2233 err = cfg80211_check_station_change(wiphy, params, statype);
2234 if (err)
2235 return err;
2236
2237 if (params->vlan && params->vlan != sta->sdata->dev) {
2238 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2239
2240 if (params->vlan->ieee80211_ptr->use_4addr) {
2241 if (vlansdata->u.vlan.sta)
2242 return -EBUSY;
2243
2244 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2245 __ieee80211_check_fast_rx_iface(vlansdata);
2246 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2247 }
2248
2249 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2250 sta->sdata->u.vlan.sta)
2251 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2252
2253 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2254 ieee80211_vif_dec_num_mcast(sta->sdata);
2255
2256 sta->sdata = vlansdata;
2257 ieee80211_check_fast_rx(sta);
2258 ieee80211_check_fast_xmit(sta);
2259
2260 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2261 ieee80211_vif_inc_num_mcast(sta->sdata);
2262 cfg80211_send_layer2_update(sta->sdata->dev,
2263 sta->sta.addr);
2264 }
2265 }
2266
2267 err = sta_apply_parameters(local, sta, params);
2268 if (err)
2269 return err;
2270
2271 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2272 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2273 ieee80211_recalc_ps(local);
2274 ieee80211_recalc_ps_vif(sdata);
2275 }
2276
2277 return 0;
2278 }
2279
2280 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2281 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2282 const u8 *dst, const u8 *next_hop)
2283 {
2284 struct ieee80211_sub_if_data *sdata;
2285 struct mesh_path *mpath;
2286 struct sta_info *sta;
2287
2288 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2289
2290 rcu_read_lock();
2291 sta = sta_info_get(sdata, next_hop);
2292 if (!sta) {
2293 rcu_read_unlock();
2294 return -ENOENT;
2295 }
2296
2297 mpath = mesh_path_add(sdata, dst);
2298 if (IS_ERR(mpath)) {
2299 rcu_read_unlock();
2300 return PTR_ERR(mpath);
2301 }
2302
2303 mesh_path_fix_nexthop(mpath, sta);
2304
2305 rcu_read_unlock();
2306 return 0;
2307 }
2308
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)2309 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2310 const u8 *dst)
2311 {
2312 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2313
2314 if (dst)
2315 return mesh_path_del(sdata, dst);
2316
2317 mesh_path_flush_by_iface(sdata);
2318 return 0;
2319 }
2320
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2321 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2322 const u8 *dst, const u8 *next_hop)
2323 {
2324 struct ieee80211_sub_if_data *sdata;
2325 struct mesh_path *mpath;
2326 struct sta_info *sta;
2327
2328 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2329
2330 rcu_read_lock();
2331
2332 sta = sta_info_get(sdata, next_hop);
2333 if (!sta) {
2334 rcu_read_unlock();
2335 return -ENOENT;
2336 }
2337
2338 mpath = mesh_path_lookup(sdata, dst);
2339 if (!mpath) {
2340 rcu_read_unlock();
2341 return -ENOENT;
2342 }
2343
2344 mesh_path_fix_nexthop(mpath, sta);
2345
2346 rcu_read_unlock();
2347 return 0;
2348 }
2349
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)2350 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2351 struct mpath_info *pinfo)
2352 {
2353 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2354
2355 if (next_hop_sta)
2356 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2357 else
2358 eth_zero_addr(next_hop);
2359
2360 memset(pinfo, 0, sizeof(*pinfo));
2361
2362 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2363
2364 pinfo->filled = MPATH_INFO_FRAME_QLEN |
2365 MPATH_INFO_SN |
2366 MPATH_INFO_METRIC |
2367 MPATH_INFO_EXPTIME |
2368 MPATH_INFO_DISCOVERY_TIMEOUT |
2369 MPATH_INFO_DISCOVERY_RETRIES |
2370 MPATH_INFO_FLAGS |
2371 MPATH_INFO_HOP_COUNT |
2372 MPATH_INFO_PATH_CHANGE;
2373
2374 pinfo->frame_qlen = mpath->frame_queue.qlen;
2375 pinfo->sn = mpath->sn;
2376 pinfo->metric = mpath->metric;
2377 if (time_before(jiffies, mpath->exp_time))
2378 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2379 pinfo->discovery_timeout =
2380 jiffies_to_msecs(mpath->discovery_timeout);
2381 pinfo->discovery_retries = mpath->discovery_retries;
2382 if (mpath->flags & MESH_PATH_ACTIVE)
2383 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2384 if (mpath->flags & MESH_PATH_RESOLVING)
2385 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2386 if (mpath->flags & MESH_PATH_SN_VALID)
2387 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2388 if (mpath->flags & MESH_PATH_FIXED)
2389 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2390 if (mpath->flags & MESH_PATH_RESOLVED)
2391 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2392 pinfo->hop_count = mpath->hop_count;
2393 pinfo->path_change_count = mpath->path_change_count;
2394 }
2395
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2396 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2397 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2398
2399 {
2400 struct ieee80211_sub_if_data *sdata;
2401 struct mesh_path *mpath;
2402
2403 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2404
2405 rcu_read_lock();
2406 mpath = mesh_path_lookup(sdata, dst);
2407 if (!mpath) {
2408 rcu_read_unlock();
2409 return -ENOENT;
2410 }
2411 memcpy(dst, mpath->dst, ETH_ALEN);
2412 mpath_set_pinfo(mpath, next_hop, pinfo);
2413 rcu_read_unlock();
2414 return 0;
2415 }
2416
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2417 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2418 int idx, u8 *dst, u8 *next_hop,
2419 struct mpath_info *pinfo)
2420 {
2421 struct ieee80211_sub_if_data *sdata;
2422 struct mesh_path *mpath;
2423
2424 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2425
2426 rcu_read_lock();
2427 mpath = mesh_path_lookup_by_idx(sdata, idx);
2428 if (!mpath) {
2429 rcu_read_unlock();
2430 return -ENOENT;
2431 }
2432 memcpy(dst, mpath->dst, ETH_ALEN);
2433 mpath_set_pinfo(mpath, next_hop, pinfo);
2434 rcu_read_unlock();
2435 return 0;
2436 }
2437
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2438 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2439 struct mpath_info *pinfo)
2440 {
2441 memset(pinfo, 0, sizeof(*pinfo));
2442 memcpy(mpp, mpath->mpp, ETH_ALEN);
2443
2444 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2445 }
2446
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2447 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2448 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2449
2450 {
2451 struct ieee80211_sub_if_data *sdata;
2452 struct mesh_path *mpath;
2453
2454 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2455
2456 rcu_read_lock();
2457 mpath = mpp_path_lookup(sdata, dst);
2458 if (!mpath) {
2459 rcu_read_unlock();
2460 return -ENOENT;
2461 }
2462 memcpy(dst, mpath->dst, ETH_ALEN);
2463 mpp_set_pinfo(mpath, mpp, pinfo);
2464 rcu_read_unlock();
2465 return 0;
2466 }
2467
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2468 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2469 int idx, u8 *dst, u8 *mpp,
2470 struct mpath_info *pinfo)
2471 {
2472 struct ieee80211_sub_if_data *sdata;
2473 struct mesh_path *mpath;
2474
2475 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2476
2477 rcu_read_lock();
2478 mpath = mpp_path_lookup_by_idx(sdata, idx);
2479 if (!mpath) {
2480 rcu_read_unlock();
2481 return -ENOENT;
2482 }
2483 memcpy(dst, mpath->dst, ETH_ALEN);
2484 mpp_set_pinfo(mpath, mpp, pinfo);
2485 rcu_read_unlock();
2486 return 0;
2487 }
2488
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2489 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2490 struct net_device *dev,
2491 struct mesh_config *conf)
2492 {
2493 struct ieee80211_sub_if_data *sdata;
2494 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2495
2496 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2497 return 0;
2498 }
2499
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2500 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2501 {
2502 return (mask >> (parm-1)) & 0x1;
2503 }
2504
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2505 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2506 const struct mesh_setup *setup)
2507 {
2508 u8 *new_ie;
2509 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2510 struct ieee80211_sub_if_data, u.mesh);
2511 int i;
2512
2513 /* allocate information elements */
2514 new_ie = NULL;
2515
2516 if (setup->ie_len) {
2517 new_ie = kmemdup(setup->ie, setup->ie_len,
2518 GFP_KERNEL);
2519 if (!new_ie)
2520 return -ENOMEM;
2521 }
2522 ifmsh->ie_len = setup->ie_len;
2523 ifmsh->ie = new_ie;
2524
2525 /* now copy the rest of the setup parameters */
2526 ifmsh->mesh_id_len = setup->mesh_id_len;
2527 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2528 ifmsh->mesh_sp_id = setup->sync_method;
2529 ifmsh->mesh_pp_id = setup->path_sel_proto;
2530 ifmsh->mesh_pm_id = setup->path_metric;
2531 ifmsh->user_mpm = setup->user_mpm;
2532 ifmsh->mesh_auth_id = setup->auth_id;
2533 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2534 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2535 if (setup->is_authenticated)
2536 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2537 if (setup->is_secure)
2538 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2539
2540 /* mcast rate setting in Mesh Node */
2541 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2542 sizeof(setup->mcast_rate));
2543 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2544
2545 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2546 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2547
2548 sdata->beacon_rate_set = false;
2549 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2550 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2551 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2552 sdata->beacon_rateidx_mask[i] =
2553 setup->beacon_rate.control[i].legacy;
2554 if (sdata->beacon_rateidx_mask[i])
2555 sdata->beacon_rate_set = true;
2556 }
2557 }
2558
2559 return 0;
2560 }
2561
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2562 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2563 struct net_device *dev, u32 mask,
2564 const struct mesh_config *nconf)
2565 {
2566 struct mesh_config *conf;
2567 struct ieee80211_sub_if_data *sdata;
2568 struct ieee80211_if_mesh *ifmsh;
2569
2570 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2571 ifmsh = &sdata->u.mesh;
2572
2573 /* Set the config options which we are interested in setting */
2574 conf = &(sdata->u.mesh.mshcfg);
2575 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2576 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2577 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2578 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2579 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2580 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2581 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2582 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2583 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2584 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2585 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2586 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2587 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2588 conf->element_ttl = nconf->element_ttl;
2589 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2590 if (ifmsh->user_mpm)
2591 return -EBUSY;
2592 conf->auto_open_plinks = nconf->auto_open_plinks;
2593 }
2594 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2595 conf->dot11MeshNbrOffsetMaxNeighbor =
2596 nconf->dot11MeshNbrOffsetMaxNeighbor;
2597 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2598 conf->dot11MeshHWMPmaxPREQretries =
2599 nconf->dot11MeshHWMPmaxPREQretries;
2600 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2601 conf->path_refresh_time = nconf->path_refresh_time;
2602 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2603 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2604 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2605 conf->dot11MeshHWMPactivePathTimeout =
2606 nconf->dot11MeshHWMPactivePathTimeout;
2607 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2608 conf->dot11MeshHWMPpreqMinInterval =
2609 nconf->dot11MeshHWMPpreqMinInterval;
2610 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2611 conf->dot11MeshHWMPperrMinInterval =
2612 nconf->dot11MeshHWMPperrMinInterval;
2613 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2614 mask))
2615 conf->dot11MeshHWMPnetDiameterTraversalTime =
2616 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2617 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2618 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2619 ieee80211_mesh_root_setup(ifmsh);
2620 }
2621 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2622 /* our current gate announcement implementation rides on root
2623 * announcements, so require this ifmsh to also be a root node
2624 * */
2625 if (nconf->dot11MeshGateAnnouncementProtocol &&
2626 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2627 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2628 ieee80211_mesh_root_setup(ifmsh);
2629 }
2630 conf->dot11MeshGateAnnouncementProtocol =
2631 nconf->dot11MeshGateAnnouncementProtocol;
2632 }
2633 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2634 conf->dot11MeshHWMPRannInterval =
2635 nconf->dot11MeshHWMPRannInterval;
2636 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2637 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2638 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2639 /* our RSSI threshold implementation is supported only for
2640 * devices that report signal in dBm.
2641 */
2642 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2643 return -EOPNOTSUPP;
2644 conf->rssi_threshold = nconf->rssi_threshold;
2645 }
2646 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2647 conf->ht_opmode = nconf->ht_opmode;
2648 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2649 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2650 BSS_CHANGED_HT);
2651 }
2652 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2653 conf->dot11MeshHWMPactivePathToRootTimeout =
2654 nconf->dot11MeshHWMPactivePathToRootTimeout;
2655 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2656 conf->dot11MeshHWMProotInterval =
2657 nconf->dot11MeshHWMProotInterval;
2658 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2659 conf->dot11MeshHWMPconfirmationInterval =
2660 nconf->dot11MeshHWMPconfirmationInterval;
2661 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2662 conf->power_mode = nconf->power_mode;
2663 ieee80211_mps_local_status_update(sdata);
2664 }
2665 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2666 conf->dot11MeshAwakeWindowDuration =
2667 nconf->dot11MeshAwakeWindowDuration;
2668 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2669 conf->plink_timeout = nconf->plink_timeout;
2670 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2671 conf->dot11MeshConnectedToMeshGate =
2672 nconf->dot11MeshConnectedToMeshGate;
2673 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2674 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2675 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2676 conf->dot11MeshConnectedToAuthServer =
2677 nconf->dot11MeshConnectedToAuthServer;
2678 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2679 return 0;
2680 }
2681
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2682 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2683 const struct mesh_config *conf,
2684 const struct mesh_setup *setup)
2685 {
2686 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2687 struct ieee80211_chan_req chanreq = { .oper = setup->chandef };
2688 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2689 int err;
2690
2691 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2692
2693 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2694 err = copy_mesh_setup(ifmsh, setup);
2695 if (err)
2696 return err;
2697
2698 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2699
2700 /* can mesh use other SMPS modes? */
2701 sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2702 sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2703
2704 err = ieee80211_link_use_channel(&sdata->deflink, &chanreq,
2705 IEEE80211_CHANCTX_SHARED);
2706 if (err)
2707 return err;
2708
2709 return ieee80211_start_mesh(sdata);
2710 }
2711
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2712 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2713 {
2714 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2715
2716 lockdep_assert_wiphy(sdata->local->hw.wiphy);
2717
2718 ieee80211_stop_mesh(sdata);
2719 ieee80211_link_release_channel(&sdata->deflink);
2720 kfree(sdata->u.mesh.ie);
2721
2722 return 0;
2723 }
2724 #endif
2725
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2726 static int ieee80211_change_bss(struct wiphy *wiphy,
2727 struct net_device *dev,
2728 struct bss_parameters *params)
2729 {
2730 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2731 struct ieee80211_link_data *link;
2732 struct ieee80211_supported_band *sband;
2733 u64 changed = 0;
2734
2735 link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2736 if (IS_ERR(link))
2737 return PTR_ERR(link);
2738
2739 if (!sdata_dereference(link->u.ap.beacon, sdata))
2740 return -ENOENT;
2741
2742 sband = ieee80211_get_link_sband(link);
2743 if (!sband)
2744 return -EINVAL;
2745
2746 if (params->basic_rates) {
2747 if (!ieee80211_parse_bitrates(link->conf->chanreq.oper.width,
2748 wiphy->bands[sband->band],
2749 params->basic_rates,
2750 params->basic_rates_len,
2751 &link->conf->basic_rates))
2752 return -EINVAL;
2753 changed |= BSS_CHANGED_BASIC_RATES;
2754 ieee80211_check_rate_mask(link);
2755 }
2756
2757 if (params->use_cts_prot >= 0) {
2758 link->conf->use_cts_prot = params->use_cts_prot;
2759 changed |= BSS_CHANGED_ERP_CTS_PROT;
2760 }
2761 if (params->use_short_preamble >= 0) {
2762 link->conf->use_short_preamble = params->use_short_preamble;
2763 changed |= BSS_CHANGED_ERP_PREAMBLE;
2764 }
2765
2766 if (!link->conf->use_short_slot &&
2767 (sband->band == NL80211_BAND_5GHZ ||
2768 sband->band == NL80211_BAND_6GHZ)) {
2769 link->conf->use_short_slot = true;
2770 changed |= BSS_CHANGED_ERP_SLOT;
2771 }
2772
2773 if (params->use_short_slot_time >= 0) {
2774 link->conf->use_short_slot = params->use_short_slot_time;
2775 changed |= BSS_CHANGED_ERP_SLOT;
2776 }
2777
2778 if (params->ap_isolate >= 0) {
2779 if (params->ap_isolate)
2780 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2781 else
2782 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2783 ieee80211_check_fast_rx_iface(sdata);
2784 }
2785
2786 if (params->ht_opmode >= 0) {
2787 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2788 changed |= BSS_CHANGED_HT;
2789 }
2790
2791 if (params->p2p_ctwindow >= 0) {
2792 link->conf->p2p_noa_attr.oppps_ctwindow &=
2793 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2794 link->conf->p2p_noa_attr.oppps_ctwindow |=
2795 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2796 changed |= BSS_CHANGED_P2P_PS;
2797 }
2798
2799 if (params->p2p_opp_ps > 0) {
2800 link->conf->p2p_noa_attr.oppps_ctwindow |=
2801 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2802 changed |= BSS_CHANGED_P2P_PS;
2803 } else if (params->p2p_opp_ps == 0) {
2804 link->conf->p2p_noa_attr.oppps_ctwindow &=
2805 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2806 changed |= BSS_CHANGED_P2P_PS;
2807 }
2808
2809 ieee80211_link_info_change_notify(sdata, link, changed);
2810
2811 return 0;
2812 }
2813
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2814 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2815 struct net_device *dev,
2816 struct ieee80211_txq_params *params)
2817 {
2818 struct ieee80211_local *local = wiphy_priv(wiphy);
2819 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2820 struct ieee80211_link_data *link =
2821 ieee80211_link_or_deflink(sdata, params->link_id, true);
2822 struct ieee80211_tx_queue_params p;
2823
2824 if (!local->ops->conf_tx)
2825 return -EOPNOTSUPP;
2826
2827 if (local->hw.queues < IEEE80211_NUM_ACS)
2828 return -EOPNOTSUPP;
2829
2830 if (IS_ERR(link))
2831 return PTR_ERR(link);
2832
2833 memset(&p, 0, sizeof(p));
2834 p.aifs = params->aifs;
2835 p.cw_max = params->cwmax;
2836 p.cw_min = params->cwmin;
2837 p.txop = params->txop;
2838
2839 /*
2840 * Setting tx queue params disables u-apsd because it's only
2841 * called in master mode.
2842 */
2843 p.uapsd = false;
2844
2845 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2846
2847 link->tx_conf[params->ac] = p;
2848 if (drv_conf_tx(local, link, params->ac, &p)) {
2849 wiphy_debug(local->hw.wiphy,
2850 "failed to set TX queue parameters for AC %d\n",
2851 params->ac);
2852 return -EINVAL;
2853 }
2854
2855 ieee80211_link_info_change_notify(sdata, link,
2856 BSS_CHANGED_QOS);
2857
2858 return 0;
2859 }
2860
2861 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2862 static int ieee80211_suspend(struct wiphy *wiphy,
2863 struct cfg80211_wowlan *wowlan)
2864 {
2865 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2866 }
2867
ieee80211_resume(struct wiphy * wiphy)2868 static int ieee80211_resume(struct wiphy *wiphy)
2869 {
2870 return __ieee80211_resume(wiphy_priv(wiphy));
2871 }
2872 #else
2873 #define ieee80211_suspend NULL
2874 #define ieee80211_resume NULL
2875 #endif
2876
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2877 static int ieee80211_scan(struct wiphy *wiphy,
2878 struct cfg80211_scan_request *req)
2879 {
2880 struct ieee80211_sub_if_data *sdata;
2881
2882 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2883
2884 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2885 case NL80211_IFTYPE_STATION:
2886 case NL80211_IFTYPE_ADHOC:
2887 case NL80211_IFTYPE_MESH_POINT:
2888 case NL80211_IFTYPE_P2P_CLIENT:
2889 case NL80211_IFTYPE_P2P_DEVICE:
2890 break;
2891 case NL80211_IFTYPE_P2P_GO:
2892 if (sdata->local->ops->hw_scan)
2893 break;
2894 /*
2895 * FIXME: implement NoA while scanning in software,
2896 * for now fall through to allow scanning only when
2897 * beaconing hasn't been configured yet
2898 */
2899 fallthrough;
2900 case NL80211_IFTYPE_AP:
2901 /*
2902 * If the scan has been forced (and the driver supports
2903 * forcing), don't care about being beaconing already.
2904 * This will create problems to the attached stations (e.g. all
2905 * the frames sent while scanning on other channel will be
2906 * lost)
2907 */
2908 if (sdata->deflink.u.ap.beacon &&
2909 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2910 !(req->flags & NL80211_SCAN_FLAG_AP)))
2911 return -EOPNOTSUPP;
2912 break;
2913 case NL80211_IFTYPE_NAN:
2914 default:
2915 return -EOPNOTSUPP;
2916 }
2917
2918 return ieee80211_request_scan(sdata, req);
2919 }
2920
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2921 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2922 {
2923 ieee80211_scan_cancel(wiphy_priv(wiphy));
2924 }
2925
2926 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2927 ieee80211_sched_scan_start(struct wiphy *wiphy,
2928 struct net_device *dev,
2929 struct cfg80211_sched_scan_request *req)
2930 {
2931 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2932
2933 if (!sdata->local->ops->sched_scan_start)
2934 return -EOPNOTSUPP;
2935
2936 return ieee80211_request_sched_scan_start(sdata, req);
2937 }
2938
2939 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2940 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2941 u64 reqid)
2942 {
2943 struct ieee80211_local *local = wiphy_priv(wiphy);
2944
2945 if (!local->ops->sched_scan_stop)
2946 return -EOPNOTSUPP;
2947
2948 return ieee80211_request_sched_scan_stop(local);
2949 }
2950
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2951 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2952 struct cfg80211_auth_request *req)
2953 {
2954 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2955 }
2956
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2957 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2958 struct cfg80211_assoc_request *req)
2959 {
2960 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2961 }
2962
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2963 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2964 struct cfg80211_deauth_request *req)
2965 {
2966 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2967 }
2968
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2969 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2970 struct cfg80211_disassoc_request *req)
2971 {
2972 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2973 }
2974
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2975 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2976 struct cfg80211_ibss_params *params)
2977 {
2978 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2979 }
2980
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2981 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2982 {
2983 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2984 }
2985
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2986 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2987 struct ocb_setup *setup)
2988 {
2989 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2990 }
2991
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2992 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2993 {
2994 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2995 }
2996
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2997 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2998 int rate[NUM_NL80211_BANDS])
2999 {
3000 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3001
3002 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
3003 sizeof(int) * NUM_NL80211_BANDS);
3004
3005 if (ieee80211_sdata_running(sdata))
3006 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3007 BSS_CHANGED_MCAST_RATE);
3008
3009 return 0;
3010 }
3011
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)3012 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
3013 {
3014 struct ieee80211_local *local = wiphy_priv(wiphy);
3015 int err;
3016
3017 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
3018 ieee80211_check_fast_xmit_all(local);
3019
3020 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
3021
3022 if (err) {
3023 ieee80211_check_fast_xmit_all(local);
3024 return err;
3025 }
3026 }
3027
3028 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
3029 (changed & WIPHY_PARAM_DYN_ACK)) {
3030 s16 coverage_class;
3031
3032 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
3033 wiphy->coverage_class : -1;
3034 err = drv_set_coverage_class(local, coverage_class);
3035
3036 if (err)
3037 return err;
3038 }
3039
3040 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
3041 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
3042
3043 if (err)
3044 return err;
3045 }
3046
3047 if (changed & WIPHY_PARAM_RETRY_SHORT) {
3048 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
3049 return -EINVAL;
3050 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
3051 }
3052 if (changed & WIPHY_PARAM_RETRY_LONG) {
3053 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
3054 return -EINVAL;
3055 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
3056 }
3057 if (changed &
3058 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
3059 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
3060
3061 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
3062 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
3063 WIPHY_PARAM_TXQ_QUANTUM))
3064 ieee80211_txq_set_params(local);
3065
3066 return 0;
3067 }
3068
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)3069 static int ieee80211_set_tx_power(struct wiphy *wiphy,
3070 struct wireless_dev *wdev,
3071 enum nl80211_tx_power_setting type, int mbm)
3072 {
3073 struct ieee80211_local *local = wiphy_priv(wiphy);
3074 struct ieee80211_sub_if_data *sdata;
3075 enum nl80211_tx_power_setting txp_type = type;
3076 bool update_txp_type = false;
3077 bool has_monitor = false;
3078 int user_power_level;
3079 int old_power = local->user_power_level;
3080
3081 lockdep_assert_wiphy(local->hw.wiphy);
3082
3083 switch (type) {
3084 case NL80211_TX_POWER_AUTOMATIC:
3085 user_power_level = IEEE80211_UNSET_POWER_LEVEL;
3086 txp_type = NL80211_TX_POWER_LIMITED;
3087 break;
3088 case NL80211_TX_POWER_LIMITED:
3089 case NL80211_TX_POWER_FIXED:
3090 if (mbm < 0 || (mbm % 100))
3091 return -EOPNOTSUPP;
3092 user_power_level = MBM_TO_DBM(mbm);
3093 break;
3094 default:
3095 return -EINVAL;
3096 }
3097
3098 if (wdev) {
3099 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3100
3101 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3102 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
3103 if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
3104 return -EOPNOTSUPP;
3105
3106 sdata = wiphy_dereference(local->hw.wiphy,
3107 local->monitor_sdata);
3108 if (!sdata)
3109 return -EOPNOTSUPP;
3110 }
3111
3112 for (int link_id = 0;
3113 link_id < ARRAY_SIZE(sdata->link);
3114 link_id++) {
3115 struct ieee80211_link_data *link =
3116 wiphy_dereference(wiphy, sdata->link[link_id]);
3117
3118 if (!link)
3119 continue;
3120
3121 link->user_power_level = user_power_level;
3122
3123 if (txp_type != link->conf->txpower_type) {
3124 update_txp_type = true;
3125 link->conf->txpower_type = txp_type;
3126 }
3127
3128 ieee80211_recalc_txpower(link, update_txp_type);
3129 }
3130 return 0;
3131 }
3132
3133 local->user_power_level = user_power_level;
3134
3135 list_for_each_entry(sdata, &local->interfaces, list) {
3136 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3137 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
3138 has_monitor = true;
3139 continue;
3140 }
3141
3142 for (int link_id = 0;
3143 link_id < ARRAY_SIZE(sdata->link);
3144 link_id++) {
3145 struct ieee80211_link_data *link =
3146 wiphy_dereference(wiphy, sdata->link[link_id]);
3147
3148 if (!link)
3149 continue;
3150
3151 link->user_power_level = local->user_power_level;
3152 if (txp_type != link->conf->txpower_type)
3153 update_txp_type = true;
3154 link->conf->txpower_type = txp_type;
3155 }
3156 }
3157 list_for_each_entry(sdata, &local->interfaces, list) {
3158 if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
3159 !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
3160 continue;
3161
3162 for (int link_id = 0;
3163 link_id < ARRAY_SIZE(sdata->link);
3164 link_id++) {
3165 struct ieee80211_link_data *link =
3166 wiphy_dereference(wiphy, sdata->link[link_id]);
3167
3168 if (!link)
3169 continue;
3170
3171 ieee80211_recalc_txpower(link, update_txp_type);
3172 }
3173 }
3174
3175 if (has_monitor) {
3176 sdata = wiphy_dereference(local->hw.wiphy,
3177 local->monitor_sdata);
3178 if (sdata && ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
3179 sdata->deflink.user_power_level = local->user_power_level;
3180 if (txp_type != sdata->vif.bss_conf.txpower_type)
3181 update_txp_type = true;
3182 sdata->vif.bss_conf.txpower_type = txp_type;
3183
3184 ieee80211_recalc_txpower(&sdata->deflink,
3185 update_txp_type);
3186 }
3187 }
3188
3189 if (local->emulate_chanctx &&
3190 (old_power != local->user_power_level))
3191 ieee80211_hw_conf_chan(local);
3192
3193 return 0;
3194 }
3195
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,int * dbm)3196 static int ieee80211_get_tx_power(struct wiphy *wiphy,
3197 struct wireless_dev *wdev,
3198 unsigned int link_id,
3199 int *dbm)
3200 {
3201 struct ieee80211_local *local = wiphy_priv(wiphy);
3202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3203 struct ieee80211_link_data *link_data;
3204
3205 if (local->ops->get_txpower &&
3206 (sdata->flags & IEEE80211_SDATA_IN_DRIVER))
3207 return drv_get_txpower(local, sdata, link_id, dbm);
3208
3209 if (local->emulate_chanctx) {
3210 *dbm = local->hw.conf.power_level;
3211 } else {
3212 link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
3213
3214 if (link_data)
3215 *dbm = link_data->conf->txpower;
3216 else
3217 return -ENOLINK;
3218 }
3219
3220 /* INT_MIN indicates no power level was set yet */
3221 if (*dbm == INT_MIN)
3222 return -EINVAL;
3223
3224 return 0;
3225 }
3226
ieee80211_rfkill_poll(struct wiphy * wiphy)3227 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3228 {
3229 struct ieee80211_local *local = wiphy_priv(wiphy);
3230
3231 drv_rfkill_poll(local);
3232 }
3233
3234 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)3235 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3236 struct wireless_dev *wdev,
3237 void *data, int len)
3238 {
3239 struct ieee80211_local *local = wiphy_priv(wiphy);
3240 struct ieee80211_vif *vif = NULL;
3241
3242 if (!local->ops->testmode_cmd)
3243 return -EOPNOTSUPP;
3244
3245 if (wdev) {
3246 struct ieee80211_sub_if_data *sdata;
3247
3248 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3249 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3250 vif = &sdata->vif;
3251 }
3252
3253 return local->ops->testmode_cmd(&local->hw, vif, data, len);
3254 }
3255
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)3256 static int ieee80211_testmode_dump(struct wiphy *wiphy,
3257 struct sk_buff *skb,
3258 struct netlink_callback *cb,
3259 void *data, int len)
3260 {
3261 struct ieee80211_local *local = wiphy_priv(wiphy);
3262
3263 if (!local->ops->testmode_dump)
3264 return -EOPNOTSUPP;
3265
3266 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3267 }
3268 #endif
3269
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,struct ieee80211_link_data * link,enum ieee80211_smps_mode smps_mode)3270 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3271 struct ieee80211_link_data *link,
3272 enum ieee80211_smps_mode smps_mode)
3273 {
3274 const u8 *ap;
3275 enum ieee80211_smps_mode old_req;
3276 int err;
3277 struct sta_info *sta;
3278 bool tdls_peer_found = false;
3279
3280 lockdep_assert_wiphy(sdata->local->hw.wiphy);
3281
3282 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3283 return -EINVAL;
3284
3285 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
3286 return 0;
3287
3288 old_req = link->u.mgd.req_smps;
3289 link->u.mgd.req_smps = smps_mode;
3290
3291 /* The driver indicated that EML is enabled for the interface, which
3292 * implies that SMPS flows towards the AP should be stopped.
3293 */
3294 if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
3295 return 0;
3296
3297 if (old_req == smps_mode &&
3298 smps_mode != IEEE80211_SMPS_AUTOMATIC)
3299 return 0;
3300
3301 /*
3302 * If not associated, or current association is not an HT
3303 * association, there's no need to do anything, just store
3304 * the new value until we associate.
3305 */
3306 if (!sdata->u.mgd.associated ||
3307 link->conf->chanreq.oper.width == NL80211_CHAN_WIDTH_20_NOHT)
3308 return 0;
3309
3310 ap = sdata->vif.cfg.ap_addr;
3311
3312 rcu_read_lock();
3313 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3314 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3315 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3316 continue;
3317
3318 tdls_peer_found = true;
3319 break;
3320 }
3321 rcu_read_unlock();
3322
3323 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3324 if (tdls_peer_found || !sdata->u.mgd.powersave)
3325 smps_mode = IEEE80211_SMPS_OFF;
3326 else
3327 smps_mode = IEEE80211_SMPS_DYNAMIC;
3328 }
3329
3330 /* send SM PS frame to AP */
3331 err = ieee80211_send_smps_action(sdata, smps_mode,
3332 ap, ap,
3333 ieee80211_vif_is_mld(&sdata->vif) ?
3334 link->link_id : -1);
3335 if (err)
3336 link->u.mgd.req_smps = old_req;
3337 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3338 ieee80211_teardown_tdls_peers(link);
3339
3340 return err;
3341 }
3342
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)3343 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3344 bool enabled, int timeout)
3345 {
3346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3347 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3348 unsigned int link_id;
3349
3350 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3351 return -EOPNOTSUPP;
3352
3353 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3354 return -EOPNOTSUPP;
3355
3356 if (enabled == sdata->u.mgd.powersave &&
3357 timeout == local->dynamic_ps_forced_timeout)
3358 return 0;
3359
3360 sdata->u.mgd.powersave = enabled;
3361 local->dynamic_ps_forced_timeout = timeout;
3362
3363 /* no change, but if automatic follow powersave */
3364 for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3365 struct ieee80211_link_data *link;
3366
3367 link = sdata_dereference(sdata->link[link_id], sdata);
3368
3369 if (!link)
3370 continue;
3371 __ieee80211_request_smps_mgd(sdata, link,
3372 link->u.mgd.req_smps);
3373 }
3374
3375 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3376 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3377
3378 ieee80211_recalc_ps(local);
3379 ieee80211_recalc_ps_vif(sdata);
3380 ieee80211_check_fast_rx_iface(sdata);
3381
3382 return 0;
3383 }
3384
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)3385 static void ieee80211_set_cqm_rssi_link(struct ieee80211_sub_if_data *sdata,
3386 struct ieee80211_link_data *link,
3387 s32 rssi_thold, u32 rssi_hyst,
3388 s32 rssi_low, s32 rssi_high)
3389 {
3390 struct ieee80211_bss_conf *conf;
3391
3392 if (!link || !link->conf)
3393 return;
3394
3395 conf = link->conf;
3396
3397 if (rssi_thold && rssi_hyst &&
3398 rssi_thold == conf->cqm_rssi_thold &&
3399 rssi_hyst == conf->cqm_rssi_hyst)
3400 return;
3401
3402 conf->cqm_rssi_thold = rssi_thold;
3403 conf->cqm_rssi_hyst = rssi_hyst;
3404 conf->cqm_rssi_low = rssi_low;
3405 conf->cqm_rssi_high = rssi_high;
3406 link->u.mgd.last_cqm_event_signal = 0;
3407
3408 if (!ieee80211_vif_link_active(&sdata->vif, link->link_id))
3409 return;
3410
3411 if (sdata->u.mgd.associated &&
3412 (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3413 ieee80211_link_info_change_notify(sdata, link, BSS_CHANGED_CQM);
3414 }
3415
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)3416 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3417 struct net_device *dev,
3418 s32 rssi_thold, u32 rssi_hyst)
3419 {
3420 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3421 struct ieee80211_vif *vif = &sdata->vif;
3422 int link_id;
3423
3424 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3425 !(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3426 return -EOPNOTSUPP;
3427
3428 /* For MLD, handle CQM change on all the active links */
3429 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3430 struct ieee80211_link_data *link =
3431 sdata_dereference(sdata->link[link_id], sdata);
3432
3433 ieee80211_set_cqm_rssi_link(sdata, link, rssi_thold, rssi_hyst,
3434 0, 0);
3435 }
3436
3437 return 0;
3438 }
3439
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)3440 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3441 struct net_device *dev,
3442 s32 rssi_low, s32 rssi_high)
3443 {
3444 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3445 struct ieee80211_vif *vif = &sdata->vif;
3446 int link_id;
3447
3448 if (vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)
3449 return -EOPNOTSUPP;
3450
3451 /* For MLD, handle CQM change on all the active links */
3452 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) {
3453 struct ieee80211_link_data *link =
3454 sdata_dereference(sdata->link[link_id], sdata);
3455
3456 ieee80211_set_cqm_rssi_link(sdata, link, 0, 0,
3457 rssi_low, rssi_high);
3458 }
3459
3460 return 0;
3461 }
3462
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * addr,const struct cfg80211_bitrate_mask * mask)3463 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3464 struct net_device *dev,
3465 unsigned int link_id,
3466 const u8 *addr,
3467 const struct cfg80211_bitrate_mask *mask)
3468 {
3469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3470 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3471 int i, ret;
3472
3473 if (!ieee80211_sdata_running(sdata))
3474 return -ENETDOWN;
3475
3476 /*
3477 * If active validate the setting and reject it if it doesn't leave
3478 * at least one basic rate usable, since we really have to be able
3479 * to send something, and if we're an AP we have to be able to do
3480 * so at a basic rate so that all clients can receive it.
3481 */
3482 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3483 sdata->vif.bss_conf.chanreq.oper.chan) {
3484 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3485 enum nl80211_band band;
3486
3487 band = sdata->vif.bss_conf.chanreq.oper.chan->band;
3488
3489 if (!(mask->control[band].legacy & basic_rates))
3490 return -EINVAL;
3491 }
3492
3493 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3494 ret = drv_set_bitrate_mask(local, sdata, mask);
3495 if (ret)
3496 return ret;
3497 }
3498
3499 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3500 struct ieee80211_supported_band *sband = wiphy->bands[i];
3501 int j;
3502
3503 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3504 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3505 sizeof(mask->control[i].ht_mcs));
3506 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3507 mask->control[i].vht_mcs,
3508 sizeof(mask->control[i].vht_mcs));
3509
3510 sdata->rc_has_mcs_mask[i] = false;
3511 sdata->rc_has_vht_mcs_mask[i] = false;
3512 if (!sband)
3513 continue;
3514
3515 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3516 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3517 sdata->rc_has_mcs_mask[i] = true;
3518 break;
3519 }
3520 }
3521
3522 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3523 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3524 sdata->rc_has_vht_mcs_mask[i] = true;
3525 break;
3526 }
3527 }
3528 }
3529
3530 return 0;
3531 }
3532
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms,int link_id)3533 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3534 struct net_device *dev,
3535 struct cfg80211_chan_def *chandef,
3536 u32 cac_time_ms, int link_id)
3537 {
3538 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3539 struct ieee80211_chan_req chanreq = { .oper = *chandef };
3540 struct ieee80211_local *local = sdata->local;
3541 struct ieee80211_link_data *link_data;
3542 int err;
3543
3544 lockdep_assert_wiphy(local->hw.wiphy);
3545
3546 if (!list_empty(&local->roc_list) || local->scanning)
3547 return -EBUSY;
3548
3549 link_data = sdata_dereference(sdata->link[link_id], sdata);
3550 if (!link_data)
3551 return -ENOLINK;
3552
3553 /* whatever, but channel contexts should not complain about that one */
3554 link_data->smps_mode = IEEE80211_SMPS_OFF;
3555 link_data->needed_rx_chains = local->rx_chains;
3556
3557 err = ieee80211_link_use_channel(link_data, &chanreq,
3558 IEEE80211_CHANCTX_SHARED);
3559 if (err)
3560 return err;
3561
3562 wiphy_delayed_work_queue(wiphy, &link_data->dfs_cac_timer_work,
3563 msecs_to_jiffies(cac_time_ms));
3564
3565 return 0;
3566 }
3567
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)3568 static void ieee80211_end_cac(struct wiphy *wiphy,
3569 struct net_device *dev, unsigned int link_id)
3570 {
3571 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3572 struct ieee80211_local *local = sdata->local;
3573 struct ieee80211_link_data *link_data;
3574
3575 lockdep_assert_wiphy(local->hw.wiphy);
3576
3577 list_for_each_entry(sdata, &local->interfaces, list) {
3578 link_data = sdata_dereference(sdata->link[link_id], sdata);
3579 if (!link_data)
3580 continue;
3581
3582 wiphy_delayed_work_cancel(wiphy,
3583 &link_data->dfs_cac_timer_work);
3584
3585 if (sdata->wdev.links[link_id].cac_started) {
3586 ieee80211_link_release_channel(link_data);
3587 sdata->wdev.links[link_id].cac_started = false;
3588 }
3589 }
3590 }
3591
3592 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3593 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3594 {
3595 struct cfg80211_beacon_data *new_beacon;
3596 u8 *pos;
3597 int len;
3598
3599 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3600 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3601 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3602
3603 if (beacon->mbssid_ies)
3604 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
3605 beacon->rnr_ies,
3606 beacon->mbssid_ies->cnt);
3607
3608 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3609 if (!new_beacon)
3610 return NULL;
3611
3612 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3613 new_beacon->mbssid_ies =
3614 kzalloc(struct_size(new_beacon->mbssid_ies,
3615 elem, beacon->mbssid_ies->cnt),
3616 GFP_KERNEL);
3617 if (!new_beacon->mbssid_ies) {
3618 kfree(new_beacon);
3619 return NULL;
3620 }
3621
3622 if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
3623 new_beacon->rnr_ies =
3624 kzalloc(struct_size(new_beacon->rnr_ies,
3625 elem, beacon->rnr_ies->cnt),
3626 GFP_KERNEL);
3627 if (!new_beacon->rnr_ies) {
3628 kfree(new_beacon->mbssid_ies);
3629 kfree(new_beacon);
3630 return NULL;
3631 }
3632 }
3633 }
3634
3635 pos = (u8 *)(new_beacon + 1);
3636 if (beacon->head_len) {
3637 new_beacon->head_len = beacon->head_len;
3638 new_beacon->head = pos;
3639 memcpy(pos, beacon->head, beacon->head_len);
3640 pos += beacon->head_len;
3641 }
3642 if (beacon->tail_len) {
3643 new_beacon->tail_len = beacon->tail_len;
3644 new_beacon->tail = pos;
3645 memcpy(pos, beacon->tail, beacon->tail_len);
3646 pos += beacon->tail_len;
3647 }
3648 if (beacon->beacon_ies_len) {
3649 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3650 new_beacon->beacon_ies = pos;
3651 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3652 pos += beacon->beacon_ies_len;
3653 }
3654 if (beacon->proberesp_ies_len) {
3655 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3656 new_beacon->proberesp_ies = pos;
3657 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3658 pos += beacon->proberesp_ies_len;
3659 }
3660 if (beacon->assocresp_ies_len) {
3661 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3662 new_beacon->assocresp_ies = pos;
3663 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3664 pos += beacon->assocresp_ies_len;
3665 }
3666 if (beacon->probe_resp_len) {
3667 new_beacon->probe_resp_len = beacon->probe_resp_len;
3668 new_beacon->probe_resp = pos;
3669 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3670 pos += beacon->probe_resp_len;
3671 }
3672 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3673 pos += ieee80211_copy_mbssid_beacon(pos,
3674 new_beacon->mbssid_ies,
3675 beacon->mbssid_ies);
3676 if (beacon->rnr_ies && beacon->rnr_ies->cnt)
3677 pos += ieee80211_copy_rnr_beacon(pos,
3678 new_beacon->rnr_ies,
3679 beacon->rnr_ies);
3680 }
3681
3682 /* might copy -1, meaning no changes requested */
3683 new_beacon->ftm_responder = beacon->ftm_responder;
3684 if (beacon->lci) {
3685 new_beacon->lci_len = beacon->lci_len;
3686 new_beacon->lci = pos;
3687 memcpy(pos, beacon->lci, beacon->lci_len);
3688 pos += beacon->lci_len;
3689 }
3690 if (beacon->civicloc) {
3691 new_beacon->civicloc_len = beacon->civicloc_len;
3692 new_beacon->civicloc = pos;
3693 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3694 pos += beacon->civicloc_len;
3695 }
3696
3697 return new_beacon;
3698 }
3699
ieee80211_csa_finish(struct ieee80211_vif * vif,unsigned int link_id)3700 void ieee80211_csa_finish(struct ieee80211_vif *vif, unsigned int link_id)
3701 {
3702 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3703 struct ieee80211_local *local = sdata->local;
3704 struct ieee80211_link_data *link_data;
3705
3706 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
3707 return;
3708
3709 rcu_read_lock();
3710
3711 link_data = rcu_dereference(sdata->link[link_id]);
3712 if (WARN_ON(!link_data)) {
3713 rcu_read_unlock();
3714 return;
3715 }
3716
3717 /* TODO: MBSSID with MLO changes */
3718 if (vif->mbssid_tx_vif == vif) {
3719 /* Trigger ieee80211_csa_finish() on the non-transmitting
3720 * interfaces when channel switch is received on
3721 * transmitting interface
3722 */
3723 struct ieee80211_sub_if_data *iter;
3724
3725 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3726 if (!ieee80211_sdata_running(iter))
3727 continue;
3728
3729 if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3730 continue;
3731
3732 wiphy_work_queue(iter->local->hw.wiphy,
3733 &iter->deflink.csa.finalize_work);
3734 }
3735 }
3736 wiphy_work_queue(local->hw.wiphy, &link_data->csa.finalize_work);
3737
3738 rcu_read_unlock();
3739 }
3740 EXPORT_SYMBOL(ieee80211_csa_finish);
3741
ieee80211_channel_switch_disconnect(struct ieee80211_vif * vif)3742 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif)
3743 {
3744 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3745 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3746 struct ieee80211_local *local = sdata->local;
3747
3748 sdata_info(sdata, "channel switch failed, disconnecting\n");
3749 wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work);
3750 }
3751 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3752
ieee80211_set_after_csa_beacon(struct ieee80211_link_data * link_data,u64 * changed)3753 static int ieee80211_set_after_csa_beacon(struct ieee80211_link_data *link_data,
3754 u64 *changed)
3755 {
3756 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3757 int err;
3758
3759 switch (sdata->vif.type) {
3760 case NL80211_IFTYPE_AP:
3761 if (!link_data->u.ap.next_beacon)
3762 return -EINVAL;
3763
3764 err = ieee80211_assign_beacon(sdata, link_data,
3765 link_data->u.ap.next_beacon,
3766 NULL, NULL, changed);
3767 ieee80211_free_next_beacon(link_data);
3768
3769 if (err < 0)
3770 return err;
3771 break;
3772 case NL80211_IFTYPE_ADHOC:
3773 err = ieee80211_ibss_finish_csa(sdata, changed);
3774 if (err < 0)
3775 return err;
3776 break;
3777 #ifdef CONFIG_MAC80211_MESH
3778 case NL80211_IFTYPE_MESH_POINT:
3779 err = ieee80211_mesh_finish_csa(sdata, changed);
3780 if (err < 0)
3781 return err;
3782 break;
3783 #endif
3784 default:
3785 WARN_ON(1);
3786 return -EINVAL;
3787 }
3788
3789 return 0;
3790 }
3791
__ieee80211_csa_finalize(struct ieee80211_link_data * link_data)3792 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3793 {
3794 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3795 struct ieee80211_local *local = sdata->local;
3796 struct ieee80211_bss_conf *link_conf = link_data->conf;
3797 u64 changed = 0;
3798 int err;
3799
3800 lockdep_assert_wiphy(local->hw.wiphy);
3801
3802 /*
3803 * using reservation isn't immediate as it may be deferred until later
3804 * with multi-vif. once reservation is complete it will re-schedule the
3805 * work with no reserved_chanctx so verify chandef to check if it
3806 * completed successfully
3807 */
3808
3809 if (link_data->reserved_chanctx) {
3810 /*
3811 * with multi-vif csa driver may call ieee80211_csa_finish()
3812 * many times while waiting for other interfaces to use their
3813 * reservations
3814 */
3815 if (link_data->reserved_ready)
3816 return 0;
3817
3818 return ieee80211_link_use_reserved_context(link_data);
3819 }
3820
3821 if (!cfg80211_chandef_identical(&link_conf->chanreq.oper,
3822 &link_data->csa.chanreq.oper))
3823 return -EINVAL;
3824
3825 link_conf->csa_active = false;
3826
3827 err = ieee80211_set_after_csa_beacon(link_data, &changed);
3828 if (err)
3829 return err;
3830
3831 ieee80211_link_info_change_notify(sdata, link_data, changed);
3832
3833 ieee80211_vif_unblock_queues_csa(sdata);
3834
3835 err = drv_post_channel_switch(link_data);
3836 if (err)
3837 return err;
3838
3839 cfg80211_ch_switch_notify(sdata->dev, &link_data->csa.chanreq.oper,
3840 link_data->link_id);
3841
3842 return 0;
3843 }
3844
ieee80211_csa_finalize(struct ieee80211_link_data * link_data)3845 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3846 {
3847 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3848
3849 if (__ieee80211_csa_finalize(link_data)) {
3850 sdata_info(sdata, "failed to finalize CSA on link %d, disconnecting\n",
3851 link_data->link_id);
3852 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3853 GFP_KERNEL);
3854 }
3855 }
3856
ieee80211_csa_finalize_work(struct wiphy * wiphy,struct wiphy_work * work)3857 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work)
3858 {
3859 struct ieee80211_link_data *link =
3860 container_of(work, struct ieee80211_link_data, csa.finalize_work);
3861 struct ieee80211_sub_if_data *sdata = link->sdata;
3862 struct ieee80211_local *local = sdata->local;
3863
3864 lockdep_assert_wiphy(local->hw.wiphy);
3865
3866 /* AP might have been stopped while waiting for the lock. */
3867 if (!link->conf->csa_active)
3868 return;
3869
3870 if (!ieee80211_sdata_running(sdata))
3871 return;
3872
3873 ieee80211_csa_finalize(link);
3874 }
3875
ieee80211_set_csa_beacon(struct ieee80211_link_data * link_data,struct cfg80211_csa_settings * params,u64 * changed)3876 static int ieee80211_set_csa_beacon(struct ieee80211_link_data *link_data,
3877 struct cfg80211_csa_settings *params,
3878 u64 *changed)
3879 {
3880 struct ieee80211_sub_if_data *sdata = link_data->sdata;
3881 struct ieee80211_csa_settings csa = {};
3882 int err;
3883
3884 switch (sdata->vif.type) {
3885 case NL80211_IFTYPE_AP:
3886 link_data->u.ap.next_beacon =
3887 cfg80211_beacon_dup(¶ms->beacon_after);
3888 if (!link_data->u.ap.next_beacon)
3889 return -ENOMEM;
3890
3891 /*
3892 * With a count of 0, we don't have to wait for any
3893 * TBTT before switching, so complete the CSA
3894 * immediately. In theory, with a count == 1 we
3895 * should delay the switch until just before the next
3896 * TBTT, but that would complicate things so we switch
3897 * immediately too. If we would delay the switch
3898 * until the next TBTT, we would have to set the probe
3899 * response here.
3900 *
3901 * TODO: A channel switch with count <= 1 without
3902 * sending a CSA action frame is kind of useless,
3903 * because the clients won't know we're changing
3904 * channels. The action frame must be implemented
3905 * either here or in the userspace.
3906 */
3907 if (params->count <= 1)
3908 break;
3909
3910 if ((params->n_counter_offsets_beacon >
3911 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3912 (params->n_counter_offsets_presp >
3913 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3914 ieee80211_free_next_beacon(link_data);
3915 return -EINVAL;
3916 }
3917
3918 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3919 csa.counter_offsets_presp = params->counter_offsets_presp;
3920 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3921 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3922 csa.count = params->count;
3923
3924 err = ieee80211_assign_beacon(sdata, link_data,
3925 ¶ms->beacon_csa, &csa,
3926 NULL, changed);
3927 if (err < 0) {
3928 ieee80211_free_next_beacon(link_data);
3929 return err;
3930 }
3931
3932 break;
3933 case NL80211_IFTYPE_ADHOC:
3934 if (!sdata->vif.cfg.ibss_joined)
3935 return -EINVAL;
3936
3937 if (params->chandef.width != sdata->u.ibss.chandef.width)
3938 return -EINVAL;
3939
3940 switch (params->chandef.width) {
3941 case NL80211_CHAN_WIDTH_40:
3942 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3943 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3944 return -EINVAL;
3945 break;
3946 case NL80211_CHAN_WIDTH_5:
3947 case NL80211_CHAN_WIDTH_10:
3948 case NL80211_CHAN_WIDTH_20_NOHT:
3949 case NL80211_CHAN_WIDTH_20:
3950 break;
3951 default:
3952 return -EINVAL;
3953 }
3954
3955 /* changes into another band are not supported */
3956 if (sdata->u.ibss.chandef.chan->band !=
3957 params->chandef.chan->band)
3958 return -EINVAL;
3959
3960 /* see comments in the NL80211_IFTYPE_AP block */
3961 if (params->count > 1) {
3962 err = ieee80211_ibss_csa_beacon(sdata, params, changed);
3963 if (err < 0)
3964 return err;
3965 }
3966
3967 ieee80211_send_action_csa(sdata, params);
3968
3969 break;
3970 #ifdef CONFIG_MAC80211_MESH
3971 case NL80211_IFTYPE_MESH_POINT: {
3972 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3973
3974 /* changes into another band are not supported */
3975 if (sdata->vif.bss_conf.chanreq.oper.chan->band !=
3976 params->chandef.chan->band)
3977 return -EINVAL;
3978
3979 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3980 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3981 if (!ifmsh->pre_value)
3982 ifmsh->pre_value = 1;
3983 else
3984 ifmsh->pre_value++;
3985 }
3986
3987 /* see comments in the NL80211_IFTYPE_AP block */
3988 if (params->count > 1) {
3989 err = ieee80211_mesh_csa_beacon(sdata, params, changed);
3990 if (err < 0) {
3991 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3992 return err;
3993 }
3994 }
3995
3996 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3997 ieee80211_send_action_csa(sdata, params);
3998
3999 break;
4000 }
4001 #endif
4002 default:
4003 return -EOPNOTSUPP;
4004 }
4005
4006 return 0;
4007 }
4008
ieee80211_color_change_abort(struct ieee80211_link_data * link)4009 static void ieee80211_color_change_abort(struct ieee80211_link_data *link)
4010 {
4011 link->conf->color_change_active = false;
4012
4013 ieee80211_free_next_beacon(link);
4014
4015 cfg80211_color_change_aborted_notify(link->sdata->dev, link->link_id);
4016 }
4017
4018 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)4019 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4020 struct cfg80211_csa_settings *params)
4021 {
4022 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4023 struct ieee80211_chan_req chanreq = { .oper = params->chandef };
4024 struct ieee80211_local *local = sdata->local;
4025 struct ieee80211_channel_switch ch_switch = {
4026 .link_id = params->link_id,
4027 };
4028 struct ieee80211_chanctx_conf *conf;
4029 struct ieee80211_chanctx *chanctx;
4030 struct ieee80211_bss_conf *link_conf;
4031 struct ieee80211_link_data *link_data;
4032 u64 changed = 0;
4033 u8 link_id = params->link_id;
4034 int err;
4035
4036 lockdep_assert_wiphy(local->hw.wiphy);
4037
4038 if (!list_empty(&local->roc_list) || local->scanning)
4039 return -EBUSY;
4040
4041 if (sdata->wdev.links[link_id].cac_started)
4042 return -EBUSY;
4043
4044 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4045 return -EINVAL;
4046
4047 link_data = wiphy_dereference(wiphy, sdata->link[link_id]);
4048 if (!link_data)
4049 return -ENOLINK;
4050
4051 link_conf = link_data->conf;
4052
4053 if (chanreq.oper.punctured && !link_conf->eht_support)
4054 return -EINVAL;
4055
4056 /* don't allow another channel switch if one is already active. */
4057 if (link_conf->csa_active)
4058 return -EBUSY;
4059
4060 conf = wiphy_dereference(wiphy, link_conf->chanctx_conf);
4061 if (!conf) {
4062 err = -EBUSY;
4063 goto out;
4064 }
4065
4066 if (params->chandef.chan->freq_offset) {
4067 /* this may work, but is untested */
4068 err = -EOPNOTSUPP;
4069 goto out;
4070 }
4071
4072 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
4073
4074 ch_switch.timestamp = 0;
4075 ch_switch.device_timestamp = 0;
4076 ch_switch.block_tx = params->block_tx;
4077 ch_switch.chandef = chanreq.oper;
4078 ch_switch.count = params->count;
4079
4080 err = drv_pre_channel_switch(sdata, &ch_switch);
4081 if (err)
4082 goto out;
4083
4084 err = ieee80211_link_reserve_chanctx(link_data, &chanreq,
4085 chanctx->mode,
4086 params->radar_required);
4087 if (err)
4088 goto out;
4089
4090 /* if reservation is invalid then this will fail */
4091 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0, -1);
4092 if (err) {
4093 ieee80211_link_unreserve_chanctx(link_data);
4094 goto out;
4095 }
4096
4097 /* if there is a color change in progress, abort it */
4098 if (link_conf->color_change_active)
4099 ieee80211_color_change_abort(link_data);
4100
4101 err = ieee80211_set_csa_beacon(link_data, params, &changed);
4102 if (err) {
4103 ieee80211_link_unreserve_chanctx(link_data);
4104 goto out;
4105 }
4106
4107 link_data->csa.chanreq = chanreq;
4108 link_conf->csa_active = true;
4109
4110 if (params->block_tx)
4111 ieee80211_vif_block_queues_csa(sdata);
4112
4113 cfg80211_ch_switch_started_notify(sdata->dev,
4114 &link_data->csa.chanreq.oper, link_id,
4115 params->count, params->block_tx);
4116
4117 if (changed) {
4118 ieee80211_link_info_change_notify(sdata, link_data, changed);
4119 drv_channel_switch_beacon(sdata, &link_data->csa.chanreq.oper);
4120 } else {
4121 /* if the beacon didn't change, we can finalize immediately */
4122 ieee80211_csa_finalize(link_data);
4123 }
4124
4125 out:
4126 return err;
4127 }
4128
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)4129 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
4130 struct cfg80211_csa_settings *params)
4131 {
4132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4133 struct ieee80211_local *local = sdata->local;
4134
4135 lockdep_assert_wiphy(local->hw.wiphy);
4136
4137 return __ieee80211_channel_switch(wiphy, dev, params);
4138 }
4139
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)4140 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
4141 {
4142 lockdep_assert_wiphy(local->hw.wiphy);
4143
4144 local->roc_cookie_counter++;
4145
4146 /* wow, you wrapped 64 bits ... more likely a bug */
4147 if (WARN_ON(local->roc_cookie_counter == 0))
4148 local->roc_cookie_counter++;
4149
4150 return local->roc_cookie_counter;
4151 }
4152
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)4153 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
4154 u64 *cookie, gfp_t gfp)
4155 {
4156 unsigned long spin_flags;
4157 struct sk_buff *ack_skb;
4158 int id;
4159
4160 ack_skb = skb_copy(skb, gfp);
4161 if (!ack_skb)
4162 return -ENOMEM;
4163
4164 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
4165 id = idr_alloc(&local->ack_status_frames, ack_skb,
4166 1, 0x2000, GFP_ATOMIC);
4167 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
4168
4169 if (id < 0) {
4170 kfree_skb(ack_skb);
4171 return -ENOMEM;
4172 }
4173
4174 IEEE80211_SKB_CB(skb)->status_data_idr = 1;
4175 IEEE80211_SKB_CB(skb)->status_data = id;
4176
4177 *cookie = ieee80211_mgmt_tx_cookie(local);
4178 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
4179
4180 return 0;
4181 }
4182
4183 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)4184 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
4185 struct wireless_dev *wdev,
4186 struct mgmt_frame_regs *upd)
4187 {
4188 struct ieee80211_local *local = wiphy_priv(wiphy);
4189 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4190 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
4191 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
4192 bool global_change, intf_change;
4193
4194 global_change =
4195 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
4196 (local->rx_mcast_action_reg !=
4197 !!(upd->global_mcast_stypes & action_mask));
4198 local->probe_req_reg = upd->global_stypes & preq_mask;
4199 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
4200
4201 intf_change = (sdata->vif.probe_req_reg !=
4202 !!(upd->interface_stypes & preq_mask)) ||
4203 (sdata->vif.rx_mcast_action_reg !=
4204 !!(upd->interface_mcast_stypes & action_mask));
4205 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
4206 sdata->vif.rx_mcast_action_reg =
4207 upd->interface_mcast_stypes & action_mask;
4208
4209 if (!local->open_count)
4210 return;
4211
4212 if (intf_change && ieee80211_sdata_running(sdata))
4213 drv_config_iface_filter(local, sdata,
4214 sdata->vif.probe_req_reg ?
4215 FIF_PROBE_REQ : 0,
4216 FIF_PROBE_REQ);
4217
4218 if (global_change)
4219 ieee80211_configure_filter(local);
4220 }
4221
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)4222 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
4223 {
4224 struct ieee80211_local *local = wiphy_priv(wiphy);
4225 int ret;
4226
4227 if (local->started)
4228 return -EOPNOTSUPP;
4229
4230 ret = drv_set_antenna(local, tx_ant, rx_ant);
4231 if (ret)
4232 return ret;
4233
4234 local->rx_chains = hweight8(rx_ant);
4235 return 0;
4236 }
4237
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)4238 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4239 {
4240 struct ieee80211_local *local = wiphy_priv(wiphy);
4241
4242 return drv_get_antenna(local, tx_ant, rx_ant);
4243 }
4244
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)4245 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4246 struct net_device *dev,
4247 struct cfg80211_gtk_rekey_data *data)
4248 {
4249 struct ieee80211_local *local = wiphy_priv(wiphy);
4250 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4251
4252 if (!local->ops->set_rekey_data)
4253 return -EOPNOTSUPP;
4254
4255 drv_set_rekey_data(local, sdata, data);
4256
4257 return 0;
4258 }
4259
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)4260 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4261 const u8 *peer, u64 *cookie)
4262 {
4263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4264 struct ieee80211_local *local = sdata->local;
4265 struct ieee80211_qos_hdr *nullfunc;
4266 struct sk_buff *skb;
4267 int size = sizeof(*nullfunc);
4268 __le16 fc;
4269 bool qos;
4270 struct ieee80211_tx_info *info;
4271 struct sta_info *sta;
4272 struct ieee80211_chanctx_conf *chanctx_conf;
4273 enum nl80211_band band;
4274 int ret;
4275
4276 /* the lock is needed to assign the cookie later */
4277 lockdep_assert_wiphy(local->hw.wiphy);
4278
4279 rcu_read_lock();
4280 sta = sta_info_get_bss(sdata, peer);
4281 if (!sta) {
4282 ret = -ENOLINK;
4283 goto unlock;
4284 }
4285
4286 qos = sta->sta.wme;
4287
4288 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4289 if (WARN_ON(!chanctx_conf)) {
4290 ret = -EINVAL;
4291 goto unlock;
4292 }
4293 band = chanctx_conf->def.chan->band;
4294
4295 if (qos) {
4296 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4297 IEEE80211_STYPE_QOS_NULLFUNC |
4298 IEEE80211_FCTL_FROMDS);
4299 } else {
4300 size -= 2;
4301 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4302 IEEE80211_STYPE_NULLFUNC |
4303 IEEE80211_FCTL_FROMDS);
4304 }
4305
4306 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4307 if (!skb) {
4308 ret = -ENOMEM;
4309 goto unlock;
4310 }
4311
4312 skb->dev = dev;
4313
4314 skb_reserve(skb, local->hw.extra_tx_headroom);
4315
4316 nullfunc = skb_put(skb, size);
4317 nullfunc->frame_control = fc;
4318 nullfunc->duration_id = 0;
4319 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4320 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4321 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4322 nullfunc->seq_ctrl = 0;
4323
4324 info = IEEE80211_SKB_CB(skb);
4325
4326 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4327 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4328 info->band = band;
4329
4330 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4331 skb->priority = 7;
4332 if (qos)
4333 nullfunc->qos_ctrl = cpu_to_le16(7);
4334
4335 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4336 if (ret) {
4337 kfree_skb(skb);
4338 goto unlock;
4339 }
4340
4341 local_bh_disable();
4342 ieee80211_xmit(sdata, sta, skb);
4343 local_bh_enable();
4344
4345 ret = 0;
4346 unlock:
4347 rcu_read_unlock();
4348
4349 return ret;
4350 }
4351
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)4352 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4353 struct wireless_dev *wdev,
4354 unsigned int link_id,
4355 struct cfg80211_chan_def *chandef)
4356 {
4357 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4358 struct ieee80211_local *local = wiphy_priv(wiphy);
4359 struct ieee80211_chanctx_conf *chanctx_conf;
4360 struct ieee80211_link_data *link;
4361 int ret = -ENODATA;
4362
4363 rcu_read_lock();
4364 link = rcu_dereference(sdata->link[link_id]);
4365 if (!link) {
4366 ret = -ENOLINK;
4367 goto out;
4368 }
4369
4370 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4371 if (chanctx_conf) {
4372 *chandef = link->conf->chanreq.oper;
4373 ret = 0;
4374 } else if (!ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR) &&
4375 local->open_count > 0 &&
4376 local->open_count == local->monitors &&
4377 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4378 *chandef = local->monitor_chanreq.oper;
4379 ret = 0;
4380 }
4381 out:
4382 rcu_read_unlock();
4383
4384 return ret;
4385 }
4386
4387 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)4388 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4389 {
4390 drv_set_wakeup(wiphy_priv(wiphy), enabled);
4391 }
4392 #endif
4393
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)4394 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4395 struct net_device *dev,
4396 struct cfg80211_qos_map *qos_map)
4397 {
4398 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4399 struct mac80211_qos_map *new_qos_map, *old_qos_map;
4400
4401 if (qos_map) {
4402 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4403 if (!new_qos_map)
4404 return -ENOMEM;
4405 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4406 } else {
4407 /* A NULL qos_map was passed to disable QoS mapping */
4408 new_qos_map = NULL;
4409 }
4410
4411 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4412 rcu_assign_pointer(sdata->qos_map, new_qos_map);
4413 if (old_qos_map)
4414 kfree_rcu(old_qos_map, rcu_head);
4415
4416 return 0;
4417 }
4418
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,struct cfg80211_chan_def * chandef)4419 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4420 struct net_device *dev,
4421 unsigned int link_id,
4422 struct cfg80211_chan_def *chandef)
4423 {
4424 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4425 struct ieee80211_link_data *link;
4426 struct ieee80211_chan_req chanreq = { .oper = *chandef };
4427 int ret;
4428 u64 changed = 0;
4429
4430 link = sdata_dereference(sdata->link[link_id], sdata);
4431
4432 ret = ieee80211_link_change_chanreq(link, &chanreq, &changed);
4433 if (ret == 0)
4434 ieee80211_link_info_change_notify(sdata, link, changed);
4435
4436 return ret;
4437 }
4438
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)4439 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4440 u8 tsid, const u8 *peer, u8 up,
4441 u16 admitted_time)
4442 {
4443 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4444 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4445 int ac = ieee802_1d_to_ac[up];
4446
4447 if (sdata->vif.type != NL80211_IFTYPE_STATION)
4448 return -EOPNOTSUPP;
4449
4450 if (!(sdata->wmm_acm & BIT(up)))
4451 return -EINVAL;
4452
4453 if (ifmgd->tx_tspec[ac].admitted_time)
4454 return -EBUSY;
4455
4456 if (admitted_time) {
4457 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4458 ifmgd->tx_tspec[ac].tsid = tsid;
4459 ifmgd->tx_tspec[ac].up = up;
4460 }
4461
4462 return 0;
4463 }
4464
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)4465 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4466 u8 tsid, const u8 *peer)
4467 {
4468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4469 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4470 struct ieee80211_local *local = wiphy_priv(wiphy);
4471 int ac;
4472
4473 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4474 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4475
4476 /* skip unused entries */
4477 if (!tx_tspec->admitted_time)
4478 continue;
4479
4480 if (tx_tspec->tsid != tsid)
4481 continue;
4482
4483 /* due to this new packets will be reassigned to non-ACM ACs */
4484 tx_tspec->up = -1;
4485
4486 /* Make sure that all packets have been sent to avoid to
4487 * restore the QoS params on packets that are still on the
4488 * queues.
4489 */
4490 synchronize_net();
4491 ieee80211_flush_queues(local, sdata, false);
4492
4493 /* restore the normal QoS parameters
4494 * (unconditionally to avoid races)
4495 */
4496 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4497 tx_tspec->downgraded = false;
4498 ieee80211_sta_handle_tspec_ac_params(sdata);
4499
4500 /* finally clear all the data */
4501 memset(tx_tspec, 0, sizeof(*tx_tspec));
4502
4503 return 0;
4504 }
4505
4506 return -ENOENT;
4507 }
4508
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)4509 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4510 u8 inst_id,
4511 enum nl80211_nan_func_term_reason reason,
4512 gfp_t gfp)
4513 {
4514 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4515 struct cfg80211_nan_func *func;
4516 u64 cookie;
4517
4518 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4519 return;
4520
4521 spin_lock_bh(&sdata->u.nan.func_lock);
4522
4523 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4524 if (WARN_ON(!func)) {
4525 spin_unlock_bh(&sdata->u.nan.func_lock);
4526 return;
4527 }
4528
4529 cookie = func->cookie;
4530 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4531
4532 spin_unlock_bh(&sdata->u.nan.func_lock);
4533
4534 cfg80211_free_nan_func(func);
4535
4536 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4537 reason, cookie, gfp);
4538 }
4539 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4540
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)4541 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4542 struct cfg80211_nan_match_params *match,
4543 gfp_t gfp)
4544 {
4545 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4546 struct cfg80211_nan_func *func;
4547
4548 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4549 return;
4550
4551 spin_lock_bh(&sdata->u.nan.func_lock);
4552
4553 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
4554 if (WARN_ON(!func)) {
4555 spin_unlock_bh(&sdata->u.nan.func_lock);
4556 return;
4557 }
4558 match->cookie = func->cookie;
4559
4560 spin_unlock_bh(&sdata->u.nan.func_lock);
4561
4562 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4563 }
4564 EXPORT_SYMBOL(ieee80211_nan_func_match);
4565
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)4566 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4567 struct net_device *dev,
4568 const bool enabled)
4569 {
4570 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4571
4572 sdata->u.ap.multicast_to_unicast = enabled;
4573
4574 return 0;
4575 }
4576
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)4577 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4578 struct txq_info *txqi)
4579 {
4580 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4581 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4582 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4583 }
4584
4585 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4586 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4587 txqstats->backlog_packets = txqi->tin.backlog_packets;
4588 }
4589
4590 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4591 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4592 txqstats->flows = txqi->tin.flows;
4593 }
4594
4595 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4596 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4597 txqstats->drops = txqi->cstats.drop_count;
4598 }
4599
4600 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4601 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4602 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4603 }
4604
4605 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4606 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4607 txqstats->overlimit = txqi->tin.overlimit;
4608 }
4609
4610 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4611 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4612 txqstats->collisions = txqi->tin.collisions;
4613 }
4614
4615 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4616 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4617 txqstats->tx_bytes = txqi->tin.tx_bytes;
4618 }
4619
4620 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4621 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4622 txqstats->tx_packets = txqi->tin.tx_packets;
4623 }
4624 }
4625
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)4626 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4627 struct wireless_dev *wdev,
4628 struct cfg80211_txq_stats *txqstats)
4629 {
4630 struct ieee80211_local *local = wiphy_priv(wiphy);
4631 struct ieee80211_sub_if_data *sdata;
4632 int ret = 0;
4633
4634 spin_lock_bh(&local->fq.lock);
4635 rcu_read_lock();
4636
4637 if (wdev) {
4638 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4639 if (!sdata->vif.txq) {
4640 ret = 1;
4641 goto out;
4642 }
4643 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4644 } else {
4645 /* phy stats */
4646 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4647 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4648 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4649 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4650 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4651 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4652 txqstats->backlog_packets = local->fq.backlog;
4653 txqstats->backlog_bytes = local->fq.memory_usage;
4654 txqstats->overlimit = local->fq.overlimit;
4655 txqstats->overmemory = local->fq.overmemory;
4656 txqstats->collisions = local->fq.collisions;
4657 txqstats->max_flows = local->fq.flows_cnt;
4658 }
4659
4660 out:
4661 rcu_read_unlock();
4662 spin_unlock_bh(&local->fq.lock);
4663
4664 return ret;
4665 }
4666
4667 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4668 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4669 struct net_device *dev,
4670 struct cfg80211_ftm_responder_stats *ftm_stats)
4671 {
4672 struct ieee80211_local *local = wiphy_priv(wiphy);
4673 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4674
4675 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4676 }
4677
4678 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4679 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4680 struct cfg80211_pmsr_request *request)
4681 {
4682 struct ieee80211_local *local = wiphy_priv(wiphy);
4683 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4684
4685 return drv_start_pmsr(local, sdata, request);
4686 }
4687
4688 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4689 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4690 struct cfg80211_pmsr_request *request)
4691 {
4692 struct ieee80211_local *local = wiphy_priv(wiphy);
4693 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4694
4695 return drv_abort_pmsr(local, sdata, request);
4696 }
4697
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4698 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4699 struct net_device *dev,
4700 struct cfg80211_tid_config *tid_conf)
4701 {
4702 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4703 struct sta_info *sta;
4704
4705 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4706
4707 if (!sdata->local->ops->set_tid_config)
4708 return -EOPNOTSUPP;
4709
4710 if (!tid_conf->peer)
4711 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4712
4713 sta = sta_info_get_bss(sdata, tid_conf->peer);
4714 if (!sta)
4715 return -ENOENT;
4716
4717 return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4718 }
4719
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4720 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4721 struct net_device *dev,
4722 const u8 *peer, u8 tids)
4723 {
4724 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4725 struct sta_info *sta;
4726
4727 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4728
4729 if (!sdata->local->ops->reset_tid_config)
4730 return -EOPNOTSUPP;
4731
4732 if (!peer)
4733 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4734
4735 sta = sta_info_get_bss(sdata, peer);
4736 if (!sta)
4737 return -ENOENT;
4738
4739 return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4740 }
4741
ieee80211_set_sar_specs(struct wiphy * wiphy,struct cfg80211_sar_specs * sar)4742 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4743 struct cfg80211_sar_specs *sar)
4744 {
4745 struct ieee80211_local *local = wiphy_priv(wiphy);
4746
4747 if (!local->ops->set_sar_specs)
4748 return -EOPNOTSUPP;
4749
4750 return local->ops->set_sar_specs(&local->hw, sar);
4751 }
4752
4753 static int
ieee80211_set_after_color_change_beacon(struct ieee80211_link_data * link,u64 * changed)4754 ieee80211_set_after_color_change_beacon(struct ieee80211_link_data *link,
4755 u64 *changed)
4756 {
4757 struct ieee80211_sub_if_data *sdata = link->sdata;
4758
4759 switch (sdata->vif.type) {
4760 case NL80211_IFTYPE_AP: {
4761 int ret;
4762
4763 if (!link->u.ap.next_beacon)
4764 return -EINVAL;
4765
4766 ret = ieee80211_assign_beacon(sdata, link,
4767 link->u.ap.next_beacon,
4768 NULL, NULL, changed);
4769 ieee80211_free_next_beacon(link);
4770
4771 if (ret < 0)
4772 return ret;
4773
4774 break;
4775 }
4776 default:
4777 WARN_ON_ONCE(1);
4778 return -EINVAL;
4779 }
4780
4781 return 0;
4782 }
4783
4784 static int
ieee80211_set_color_change_beacon(struct ieee80211_link_data * link,struct cfg80211_color_change_settings * params,u64 * changed)4785 ieee80211_set_color_change_beacon(struct ieee80211_link_data *link,
4786 struct cfg80211_color_change_settings *params,
4787 u64 *changed)
4788 {
4789 struct ieee80211_sub_if_data *sdata = link->sdata;
4790 struct ieee80211_color_change_settings color_change = {};
4791 int err;
4792
4793 switch (sdata->vif.type) {
4794 case NL80211_IFTYPE_AP:
4795 link->u.ap.next_beacon =
4796 cfg80211_beacon_dup(¶ms->beacon_next);
4797 if (!link->u.ap.next_beacon)
4798 return -ENOMEM;
4799
4800 if (params->count <= 1)
4801 break;
4802
4803 color_change.counter_offset_beacon =
4804 params->counter_offset_beacon;
4805 color_change.counter_offset_presp =
4806 params->counter_offset_presp;
4807 color_change.count = params->count;
4808
4809 err = ieee80211_assign_beacon(sdata, link,
4810 ¶ms->beacon_color_change,
4811 NULL, &color_change, changed);
4812 if (err < 0) {
4813 ieee80211_free_next_beacon(link);
4814 return err;
4815 }
4816 break;
4817 default:
4818 return -EOPNOTSUPP;
4819 }
4820
4821 return 0;
4822 }
4823
4824 static void
ieee80211_color_change_bss_config_notify(struct ieee80211_link_data * link,u8 color,int enable,u64 changed)4825 ieee80211_color_change_bss_config_notify(struct ieee80211_link_data *link,
4826 u8 color, int enable, u64 changed)
4827 {
4828 struct ieee80211_sub_if_data *sdata = link->sdata;
4829
4830 lockdep_assert_wiphy(sdata->local->hw.wiphy);
4831
4832 link->conf->he_bss_color.color = color;
4833 link->conf->he_bss_color.enabled = enable;
4834 changed |= BSS_CHANGED_HE_BSS_COLOR;
4835
4836 ieee80211_link_info_change_notify(sdata, link, changed);
4837
4838 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4839 struct ieee80211_sub_if_data *child;
4840
4841 list_for_each_entry(child, &sdata->local->interfaces, list) {
4842 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4843 child->vif.bss_conf.he_bss_color.color = color;
4844 child->vif.bss_conf.he_bss_color.enabled = enable;
4845 ieee80211_link_info_change_notify(child,
4846 &child->deflink,
4847 BSS_CHANGED_HE_BSS_COLOR);
4848 }
4849 }
4850 }
4851 }
4852
ieee80211_color_change_finalize(struct ieee80211_link_data * link)4853 static int ieee80211_color_change_finalize(struct ieee80211_link_data *link)
4854 {
4855 struct ieee80211_sub_if_data *sdata = link->sdata;
4856 struct ieee80211_local *local = sdata->local;
4857 u64 changed = 0;
4858 int err;
4859
4860 lockdep_assert_wiphy(local->hw.wiphy);
4861
4862 link->conf->color_change_active = false;
4863
4864 err = ieee80211_set_after_color_change_beacon(link, &changed);
4865 if (err) {
4866 cfg80211_color_change_aborted_notify(sdata->dev, link->link_id);
4867 return err;
4868 }
4869
4870 ieee80211_color_change_bss_config_notify(link,
4871 link->conf->color_change_color,
4872 1, changed);
4873 cfg80211_color_change_notify(sdata->dev, link->link_id);
4874
4875 return 0;
4876 }
4877
ieee80211_color_change_finalize_work(struct wiphy * wiphy,struct wiphy_work * work)4878 void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
4879 struct wiphy_work *work)
4880 {
4881 struct ieee80211_link_data *link =
4882 container_of(work, struct ieee80211_link_data,
4883 color_change_finalize_work);
4884 struct ieee80211_sub_if_data *sdata = link->sdata;
4885 struct ieee80211_bss_conf *link_conf = link->conf;
4886 struct ieee80211_local *local = sdata->local;
4887
4888 lockdep_assert_wiphy(local->hw.wiphy);
4889
4890 /* AP might have been stopped while waiting for the lock. */
4891 if (!link_conf->color_change_active)
4892 return;
4893
4894 if (!ieee80211_sdata_running(sdata))
4895 return;
4896
4897 ieee80211_color_change_finalize(link);
4898 }
4899
ieee80211_color_collision_detection_work(struct wiphy * wiphy,struct wiphy_work * work)4900 void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
4901 struct wiphy_work *work)
4902 {
4903 struct ieee80211_link_data *link =
4904 container_of(work, struct ieee80211_link_data,
4905 color_collision_detect_work.work);
4906 struct ieee80211_sub_if_data *sdata = link->sdata;
4907
4908 cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap,
4909 link->link_id);
4910 }
4911
ieee80211_color_change_finish(struct ieee80211_vif * vif,u8 link_id)4912 void ieee80211_color_change_finish(struct ieee80211_vif *vif, u8 link_id)
4913 {
4914 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4915 struct ieee80211_link_data *link;
4916
4917 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4918 return;
4919
4920 rcu_read_lock();
4921
4922 link = rcu_dereference(sdata->link[link_id]);
4923 if (WARN_ON(!link)) {
4924 rcu_read_unlock();
4925 return;
4926 }
4927
4928 wiphy_work_queue(sdata->local->hw.wiphy,
4929 &link->color_change_finalize_work);
4930
4931 rcu_read_unlock();
4932 }
4933 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4934
4935 void
ieee80211_obss_color_collision_notify(struct ieee80211_vif * vif,u64 color_bitmap,u8 link_id)4936 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4937 u64 color_bitmap, u8 link_id)
4938 {
4939 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4940 struct ieee80211_link_data *link;
4941
4942 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4943 return;
4944
4945 rcu_read_lock();
4946
4947 link = rcu_dereference(sdata->link[link_id]);
4948 if (WARN_ON(!link)) {
4949 rcu_read_unlock();
4950 return;
4951 }
4952
4953 if (link->conf->color_change_active || link->conf->csa_active) {
4954 rcu_read_unlock();
4955 return;
4956 }
4957
4958 if (wiphy_delayed_work_pending(sdata->local->hw.wiphy,
4959 &link->color_collision_detect_work)) {
4960 rcu_read_unlock();
4961 return;
4962 }
4963
4964 link->color_bitmap = color_bitmap;
4965 /* queue the color collision detection event every 500 ms in order to
4966 * avoid sending too much netlink messages to userspace.
4967 */
4968 wiphy_delayed_work_queue(sdata->local->hw.wiphy,
4969 &link->color_collision_detect_work,
4970 msecs_to_jiffies(500));
4971
4972 rcu_read_unlock();
4973 }
4974 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
4975
4976 static int
ieee80211_color_change(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_color_change_settings * params)4977 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4978 struct cfg80211_color_change_settings *params)
4979 {
4980 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4981 struct ieee80211_local *local = sdata->local;
4982 struct ieee80211_bss_conf *link_conf;
4983 struct ieee80211_link_data *link;
4984 u8 link_id = params->link_id;
4985 u64 changed = 0;
4986 int err;
4987
4988 lockdep_assert_wiphy(local->hw.wiphy);
4989
4990 if (WARN_ON(link_id >= IEEE80211_MLD_MAX_NUM_LINKS))
4991 return -EINVAL;
4992
4993 link = wiphy_dereference(wiphy, sdata->link[link_id]);
4994 if (!link)
4995 return -ENOLINK;
4996
4997 link_conf = link->conf;
4998
4999 if (link_conf->nontransmitted)
5000 return -EINVAL;
5001
5002 /* don't allow another color change if one is already active or if csa
5003 * is active
5004 */
5005 if (link_conf->color_change_active || link_conf->csa_active) {
5006 err = -EBUSY;
5007 goto out;
5008 }
5009
5010 err = ieee80211_set_color_change_beacon(link, params, &changed);
5011 if (err)
5012 goto out;
5013
5014 link_conf->color_change_active = true;
5015 link_conf->color_change_color = params->color;
5016
5017 cfg80211_color_change_started_notify(sdata->dev, params->count, link_id);
5018
5019 if (changed)
5020 ieee80211_color_change_bss_config_notify(link, 0, 0, changed);
5021 else
5022 /* if the beacon didn't change, we can finalize immediately */
5023 ieee80211_color_change_finalize(link);
5024
5025 out:
5026
5027 return err;
5028 }
5029
5030 static int
ieee80211_set_radar_background(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)5031 ieee80211_set_radar_background(struct wiphy *wiphy,
5032 struct cfg80211_chan_def *chandef)
5033 {
5034 struct ieee80211_local *local = wiphy_priv(wiphy);
5035
5036 if (!local->ops->set_radar_background)
5037 return -EOPNOTSUPP;
5038
5039 return local->ops->set_radar_background(&local->hw, chandef);
5040 }
5041
ieee80211_add_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)5042 static int ieee80211_add_intf_link(struct wiphy *wiphy,
5043 struct wireless_dev *wdev,
5044 unsigned int link_id)
5045 {
5046 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
5047
5048 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5049
5050 if (wdev->use_4addr)
5051 return -EOPNOTSUPP;
5052
5053 return ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
5054 }
5055
ieee80211_del_intf_link(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id)5056 static void ieee80211_del_intf_link(struct wiphy *wiphy,
5057 struct wireless_dev *wdev,
5058 unsigned int link_id)
5059 {
5060 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
5061 u16 new_links = wdev->valid_links & ~BIT(link_id);
5062
5063 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5064
5065 /* During the link teardown process, certain functions require the
5066 * link_id to remain in the valid_links bitmap. Therefore, instead
5067 * of removing the link_id from the bitmap, pass a masked value to
5068 * simulate as if link_id does not exist anymore.
5069 */
5070 ieee80211_vif_set_links(sdata, new_links, 0);
5071 }
5072
5073 static int
ieee80211_add_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)5074 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
5075 struct link_station_parameters *params)
5076 {
5077 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5078 struct ieee80211_local *local = wiphy_priv(wiphy);
5079 struct sta_info *sta;
5080 int ret;
5081
5082 lockdep_assert_wiphy(local->hw.wiphy);
5083
5084 sta = sta_info_get_bss(sdata, params->mld_mac);
5085 if (!sta)
5086 return -ENOENT;
5087
5088 if (!sta->sta.valid_links)
5089 return -EINVAL;
5090
5091 if (sta->sta.valid_links & BIT(params->link_id))
5092 return -EALREADY;
5093
5094 ret = ieee80211_sta_allocate_link(sta, params->link_id);
5095 if (ret)
5096 return ret;
5097
5098 ret = sta_link_apply_parameters(local, sta, STA_LINK_MODE_NEW, params);
5099 if (ret) {
5100 ieee80211_sta_free_link(sta, params->link_id);
5101 return ret;
5102 }
5103
5104 if (test_sta_flag(sta, WLAN_STA_ASSOC)) {
5105 struct link_sta_info *link_sta;
5106
5107 link_sta = sdata_dereference(sta->link[params->link_id], sdata);
5108 rate_control_rate_init(link_sta);
5109 }
5110
5111 /* ieee80211_sta_activate_link frees the link upon failure */
5112 return ieee80211_sta_activate_link(sta, params->link_id);
5113 }
5114
5115 static int
ieee80211_mod_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_parameters * params)5116 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
5117 struct link_station_parameters *params)
5118 {
5119 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5120 struct ieee80211_local *local = wiphy_priv(wiphy);
5121 struct sta_info *sta;
5122
5123 lockdep_assert_wiphy(local->hw.wiphy);
5124
5125 sta = sta_info_get_bss(sdata, params->mld_mac);
5126 if (!sta)
5127 return -ENOENT;
5128
5129 if (!(sta->sta.valid_links & BIT(params->link_id)))
5130 return -EINVAL;
5131
5132 return sta_link_apply_parameters(local, sta, STA_LINK_MODE_LINK_MODIFY,
5133 params);
5134 }
5135
5136 static int
ieee80211_del_link_station(struct wiphy * wiphy,struct net_device * dev,struct link_station_del_parameters * params)5137 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
5138 struct link_station_del_parameters *params)
5139 {
5140 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5141 struct sta_info *sta;
5142
5143 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5144
5145 sta = sta_info_get_bss(sdata, params->mld_mac);
5146 if (!sta)
5147 return -ENOENT;
5148
5149 if (!(sta->sta.valid_links & BIT(params->link_id)))
5150 return -EINVAL;
5151
5152 /* must not create a STA without links */
5153 if (sta->sta.valid_links == BIT(params->link_id))
5154 return -EINVAL;
5155
5156 ieee80211_sta_remove_link(sta, params->link_id);
5157
5158 return 0;
5159 }
5160
ieee80211_set_hw_timestamp(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_set_hw_timestamp * hwts)5161 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
5162 struct net_device *dev,
5163 struct cfg80211_set_hw_timestamp *hwts)
5164 {
5165 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5166 struct ieee80211_local *local = sdata->local;
5167
5168 if (!local->ops->set_hw_timestamp)
5169 return -EOPNOTSUPP;
5170
5171 if (!check_sdata_in_driver(sdata))
5172 return -EIO;
5173
5174 return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
5175 }
5176
5177 static int
ieee80211_set_ttlm(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ttlm_params * params)5178 ieee80211_set_ttlm(struct wiphy *wiphy, struct net_device *dev,
5179 struct cfg80211_ttlm_params *params)
5180 {
5181 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5182
5183 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5184
5185 return ieee80211_req_neg_ttlm(sdata, params);
5186 }
5187
5188 static int
ieee80211_assoc_ml_reconf(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_link * add_links,u16 rem_links)5189 ieee80211_assoc_ml_reconf(struct wiphy *wiphy, struct net_device *dev,
5190 struct cfg80211_assoc_link *add_links,
5191 u16 rem_links)
5192 {
5193 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5194
5195 lockdep_assert_wiphy(sdata->local->hw.wiphy);
5196
5197 return ieee80211_mgd_assoc_ml_reconf(sdata, add_links, rem_links);
5198 }
5199
5200 const struct cfg80211_ops mac80211_config_ops = {
5201 .add_virtual_intf = ieee80211_add_iface,
5202 .del_virtual_intf = ieee80211_del_iface,
5203 .change_virtual_intf = ieee80211_change_iface,
5204 .start_p2p_device = ieee80211_start_p2p_device,
5205 .stop_p2p_device = ieee80211_stop_p2p_device,
5206 .add_key = ieee80211_add_key,
5207 .del_key = ieee80211_del_key,
5208 .get_key = ieee80211_get_key,
5209 .set_default_key = ieee80211_config_default_key,
5210 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5211 .set_default_beacon_key = ieee80211_config_default_beacon_key,
5212 .start_ap = ieee80211_start_ap,
5213 .change_beacon = ieee80211_change_beacon,
5214 .stop_ap = ieee80211_stop_ap,
5215 .add_station = ieee80211_add_station,
5216 .del_station = ieee80211_del_station,
5217 .change_station = ieee80211_change_station,
5218 .get_station = ieee80211_get_station,
5219 .dump_station = ieee80211_dump_station,
5220 .dump_survey = ieee80211_dump_survey,
5221 #ifdef CONFIG_MAC80211_MESH
5222 .add_mpath = ieee80211_add_mpath,
5223 .del_mpath = ieee80211_del_mpath,
5224 .change_mpath = ieee80211_change_mpath,
5225 .get_mpath = ieee80211_get_mpath,
5226 .dump_mpath = ieee80211_dump_mpath,
5227 .get_mpp = ieee80211_get_mpp,
5228 .dump_mpp = ieee80211_dump_mpp,
5229 .update_mesh_config = ieee80211_update_mesh_config,
5230 .get_mesh_config = ieee80211_get_mesh_config,
5231 .join_mesh = ieee80211_join_mesh,
5232 .leave_mesh = ieee80211_leave_mesh,
5233 #endif
5234 .join_ocb = ieee80211_join_ocb,
5235 .leave_ocb = ieee80211_leave_ocb,
5236 .change_bss = ieee80211_change_bss,
5237 .inform_bss = ieee80211_inform_bss,
5238 .set_txq_params = ieee80211_set_txq_params,
5239 .set_monitor_channel = ieee80211_set_monitor_channel,
5240 .suspend = ieee80211_suspend,
5241 .resume = ieee80211_resume,
5242 .scan = ieee80211_scan,
5243 .abort_scan = ieee80211_abort_scan,
5244 .sched_scan_start = ieee80211_sched_scan_start,
5245 .sched_scan_stop = ieee80211_sched_scan_stop,
5246 .auth = ieee80211_auth,
5247 .assoc = ieee80211_assoc,
5248 .deauth = ieee80211_deauth,
5249 .disassoc = ieee80211_disassoc,
5250 .join_ibss = ieee80211_join_ibss,
5251 .leave_ibss = ieee80211_leave_ibss,
5252 .set_mcast_rate = ieee80211_set_mcast_rate,
5253 .set_wiphy_params = ieee80211_set_wiphy_params,
5254 .set_tx_power = ieee80211_set_tx_power,
5255 .get_tx_power = ieee80211_get_tx_power,
5256 .rfkill_poll = ieee80211_rfkill_poll,
5257 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
5258 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
5259 .set_power_mgmt = ieee80211_set_power_mgmt,
5260 .set_bitrate_mask = ieee80211_set_bitrate_mask,
5261 .remain_on_channel = ieee80211_remain_on_channel,
5262 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
5263 .mgmt_tx = ieee80211_mgmt_tx,
5264 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
5265 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
5266 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
5267 .update_mgmt_frame_registrations =
5268 ieee80211_update_mgmt_frame_registrations,
5269 .set_antenna = ieee80211_set_antenna,
5270 .get_antenna = ieee80211_get_antenna,
5271 .set_rekey_data = ieee80211_set_rekey_data,
5272 .tdls_oper = ieee80211_tdls_oper,
5273 .tdls_mgmt = ieee80211_tdls_mgmt,
5274 .tdls_channel_switch = ieee80211_tdls_channel_switch,
5275 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
5276 .probe_client = ieee80211_probe_client,
5277 .set_noack_map = ieee80211_set_noack_map,
5278 #ifdef CONFIG_PM
5279 .set_wakeup = ieee80211_set_wakeup,
5280 #endif
5281 .get_channel = ieee80211_cfg_get_channel,
5282 .start_radar_detection = ieee80211_start_radar_detection,
5283 .end_cac = ieee80211_end_cac,
5284 .channel_switch = ieee80211_channel_switch,
5285 .set_qos_map = ieee80211_set_qos_map,
5286 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
5287 .add_tx_ts = ieee80211_add_tx_ts,
5288 .del_tx_ts = ieee80211_del_tx_ts,
5289 .start_nan = ieee80211_start_nan,
5290 .stop_nan = ieee80211_stop_nan,
5291 .nan_change_conf = ieee80211_nan_change_conf,
5292 .add_nan_func = ieee80211_add_nan_func,
5293 .del_nan_func = ieee80211_del_nan_func,
5294 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5295 .tx_control_port = ieee80211_tx_control_port,
5296 .get_txq_stats = ieee80211_get_txq_stats,
5297 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5298 .start_pmsr = ieee80211_start_pmsr,
5299 .abort_pmsr = ieee80211_abort_pmsr,
5300 .probe_mesh_link = ieee80211_probe_mesh_link,
5301 .set_tid_config = ieee80211_set_tid_config,
5302 .reset_tid_config = ieee80211_reset_tid_config,
5303 .set_sar_specs = ieee80211_set_sar_specs,
5304 .color_change = ieee80211_color_change,
5305 .set_radar_background = ieee80211_set_radar_background,
5306 .add_intf_link = ieee80211_add_intf_link,
5307 .del_intf_link = ieee80211_del_intf_link,
5308 .add_link_station = ieee80211_add_link_station,
5309 .mod_link_station = ieee80211_mod_link_station,
5310 .del_link_station = ieee80211_del_link_station,
5311 .set_hw_timestamp = ieee80211_set_hw_timestamp,
5312 .set_ttlm = ieee80211_set_ttlm,
5313 .get_radio_mask = ieee80211_get_radio_mask,
5314 .assoc_ml_reconf = ieee80211_assoc_ml_reconf,
5315 };
5316