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) 2018-2021 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
ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data * sdata,struct vif_params * params)26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
27 struct vif_params *params)
28 {
29 bool mu_mimo_groups = false;
30 bool mu_mimo_follow = false;
31
32 if (params->vht_mumimo_groups) {
33 u64 membership;
34
35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
36
37 memcpy(sdata->vif.bss_conf.mu_group.membership,
38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
39 memcpy(sdata->vif.bss_conf.mu_group.position,
40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
41 WLAN_USER_POSITION_LEN);
42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
43 /* don't care about endianness - just check for 0 */
44 memcpy(&membership, params->vht_mumimo_groups,
45 WLAN_MEMBERSHIP_LEN);
46 mu_mimo_groups = membership != 0;
47 }
48
49 if (params->vht_mumimo_follow_addr) {
50 mu_mimo_follow =
51 is_valid_ether_addr(params->vht_mumimo_follow_addr);
52 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
53 params->vht_mumimo_follow_addr);
54 }
55
56 sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
57 }
58
ieee80211_set_mon_options(struct ieee80211_sub_if_data * sdata,struct vif_params * params)59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
60 struct vif_params *params)
61 {
62 struct ieee80211_local *local = sdata->local;
63 struct ieee80211_sub_if_data *monitor_sdata;
64
65 /* check flags first */
66 if (params->flags && ieee80211_sdata_running(sdata)) {
67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
68
69 /*
70 * Prohibit MONITOR_FLAG_COOK_FRAMES and
71 * MONITOR_FLAG_ACTIVE to be changed while the
72 * interface is up.
73 * Else we would need to add a lot of cruft
74 * to update everything:
75 * cooked_mntrs, monitor and all fif_* counters
76 * reconfigure hardware
77 */
78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
79 return -EBUSY;
80 }
81
82 /* also validate MU-MIMO change */
83 monitor_sdata = wiphy_dereference(local->hw.wiphy,
84 local->monitor_sdata);
85
86 if (!monitor_sdata &&
87 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
88 return -EOPNOTSUPP;
89
90 /* apply all changes now - no failures allowed */
91
92 if (monitor_sdata)
93 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
94
95 if (params->flags) {
96 if (ieee80211_sdata_running(sdata)) {
97 ieee80211_adjust_monitor_flags(sdata, -1);
98 sdata->u.mntr.flags = params->flags;
99 ieee80211_adjust_monitor_flags(sdata, 1);
100
101 ieee80211_configure_filter(local);
102 } else {
103 /*
104 * Because the interface is down, ieee80211_do_stop
105 * and ieee80211_do_open take care of "everything"
106 * mentioned in the comment above.
107 */
108 sdata->u.mntr.flags = params->flags;
109 }
110 }
111
112 return 0;
113 }
114
ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data * sdata,struct cfg80211_mbssid_config params)115 static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata,
116 struct cfg80211_mbssid_config params)
117 {
118 struct ieee80211_sub_if_data *tx_sdata;
119
120 sdata->vif.mbssid_tx_vif = NULL;
121 sdata->vif.bss_conf.bssid_index = 0;
122 sdata->vif.bss_conf.nontransmitted = false;
123 sdata->vif.bss_conf.ema_ap = false;
124
125 if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev)
126 return -EINVAL;
127
128 tx_sdata = IEEE80211_WDEV_TO_SUB_IF(params.tx_wdev);
129 if (!tx_sdata)
130 return -EINVAL;
131
132 if (tx_sdata == sdata) {
133 sdata->vif.mbssid_tx_vif = &sdata->vif;
134 } else {
135 sdata->vif.mbssid_tx_vif = &tx_sdata->vif;
136 sdata->vif.bss_conf.nontransmitted = true;
137 sdata->vif.bss_conf.bssid_index = params.index;
138 }
139 if (params.ema)
140 sdata->vif.bss_conf.ema_ap = true;
141
142 return 0;
143 }
144
ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)145 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
146 const char *name,
147 unsigned char name_assign_type,
148 enum nl80211_iftype type,
149 struct vif_params *params)
150 {
151 struct ieee80211_local *local = wiphy_priv(wiphy);
152 struct wireless_dev *wdev;
153 struct ieee80211_sub_if_data *sdata;
154 int err;
155
156 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
157 if (err)
158 return ERR_PTR(err);
159
160 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
161
162 if (type == NL80211_IFTYPE_MONITOR) {
163 err = ieee80211_set_mon_options(sdata, params);
164 if (err) {
165 ieee80211_if_remove(sdata);
166 return NULL;
167 }
168 }
169
170 return wdev;
171 }
172
ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)173 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
174 {
175 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
176
177 return 0;
178 }
179
ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)180 static int ieee80211_change_iface(struct wiphy *wiphy,
181 struct net_device *dev,
182 enum nl80211_iftype type,
183 struct vif_params *params)
184 {
185 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
186 struct ieee80211_local *local = sdata->local;
187 struct sta_info *sta;
188 int ret;
189
190 ret = ieee80211_if_change_type(sdata, type);
191 if (ret)
192 return ret;
193
194 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
195 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
196 ieee80211_check_fast_rx_iface(sdata);
197 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
198 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
199
200 if (params->use_4addr == ifmgd->use_4addr)
201 return 0;
202
203 sdata->u.mgd.use_4addr = params->use_4addr;
204 if (!ifmgd->associated)
205 return 0;
206
207 mutex_lock(&local->sta_mtx);
208 sta = sta_info_get(sdata, ifmgd->bssid);
209 if (sta)
210 drv_sta_set_4addr(local, sdata, &sta->sta,
211 params->use_4addr);
212 mutex_unlock(&local->sta_mtx);
213
214 if (params->use_4addr)
215 ieee80211_send_4addr_nullfunc(local, sdata);
216 }
217
218 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
219 ret = ieee80211_set_mon_options(sdata, params);
220 if (ret)
221 return ret;
222 }
223
224 return 0;
225 }
226
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)227 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
228 struct wireless_dev *wdev)
229 {
230 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
231 int ret;
232
233 mutex_lock(&sdata->local->chanctx_mtx);
234 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
235 mutex_unlock(&sdata->local->chanctx_mtx);
236 if (ret < 0)
237 return ret;
238
239 return ieee80211_do_open(wdev, true);
240 }
241
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)242 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
243 struct wireless_dev *wdev)
244 {
245 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
246 }
247
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)248 static int ieee80211_start_nan(struct wiphy *wiphy,
249 struct wireless_dev *wdev,
250 struct cfg80211_nan_conf *conf)
251 {
252 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
253 int ret;
254
255 mutex_lock(&sdata->local->chanctx_mtx);
256 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
257 mutex_unlock(&sdata->local->chanctx_mtx);
258 if (ret < 0)
259 return ret;
260
261 ret = ieee80211_do_open(wdev, true);
262 if (ret)
263 return ret;
264
265 ret = drv_start_nan(sdata->local, sdata, conf);
266 if (ret)
267 ieee80211_sdata_stop(sdata);
268
269 sdata->u.nan.conf = *conf;
270
271 return ret;
272 }
273
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)274 static void ieee80211_stop_nan(struct wiphy *wiphy,
275 struct wireless_dev *wdev)
276 {
277 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
278
279 drv_stop_nan(sdata->local, sdata);
280 ieee80211_sdata_stop(sdata);
281 }
282
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)283 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
284 struct wireless_dev *wdev,
285 struct cfg80211_nan_conf *conf,
286 u32 changes)
287 {
288 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
289 struct cfg80211_nan_conf new_conf;
290 int ret = 0;
291
292 if (sdata->vif.type != NL80211_IFTYPE_NAN)
293 return -EOPNOTSUPP;
294
295 if (!ieee80211_sdata_running(sdata))
296 return -ENETDOWN;
297
298 new_conf = sdata->u.nan.conf;
299
300 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
301 new_conf.master_pref = conf->master_pref;
302
303 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
304 new_conf.bands = conf->bands;
305
306 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
307 if (!ret)
308 sdata->u.nan.conf = new_conf;
309
310 return ret;
311 }
312
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)313 static int ieee80211_add_nan_func(struct wiphy *wiphy,
314 struct wireless_dev *wdev,
315 struct cfg80211_nan_func *nan_func)
316 {
317 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
318 int ret;
319
320 if (sdata->vif.type != NL80211_IFTYPE_NAN)
321 return -EOPNOTSUPP;
322
323 if (!ieee80211_sdata_running(sdata))
324 return -ENETDOWN;
325
326 spin_lock_bh(&sdata->u.nan.func_lock);
327
328 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
329 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
330 GFP_ATOMIC);
331 spin_unlock_bh(&sdata->u.nan.func_lock);
332
333 if (ret < 0)
334 return ret;
335
336 nan_func->instance_id = ret;
337
338 WARN_ON(nan_func->instance_id == 0);
339
340 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
341 if (ret) {
342 spin_lock_bh(&sdata->u.nan.func_lock);
343 idr_remove(&sdata->u.nan.function_inst_ids,
344 nan_func->instance_id);
345 spin_unlock_bh(&sdata->u.nan.func_lock);
346 }
347
348 return ret;
349 }
350
351 static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)352 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
353 u64 cookie)
354 {
355 struct cfg80211_nan_func *func;
356 int id;
357
358 lockdep_assert_held(&sdata->u.nan.func_lock);
359
360 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
361 if (func->cookie == cookie)
362 return func;
363 }
364
365 return NULL;
366 }
367
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)368 static void ieee80211_del_nan_func(struct wiphy *wiphy,
369 struct wireless_dev *wdev, u64 cookie)
370 {
371 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
372 struct cfg80211_nan_func *func;
373 u8 instance_id = 0;
374
375 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
376 !ieee80211_sdata_running(sdata))
377 return;
378
379 spin_lock_bh(&sdata->u.nan.func_lock);
380
381 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
382 if (func)
383 instance_id = func->instance_id;
384
385 spin_unlock_bh(&sdata->u.nan.func_lock);
386
387 if (instance_id)
388 drv_del_nan_func(sdata->local, sdata, instance_id);
389 }
390
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)391 static int ieee80211_set_noack_map(struct wiphy *wiphy,
392 struct net_device *dev,
393 u16 noack_map)
394 {
395 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
396
397 sdata->noack_map = noack_map;
398
399 ieee80211_check_fast_xmit_iface(sdata);
400
401 return 0;
402 }
403
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)404 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
405 const u8 *mac_addr, u8 key_idx)
406 {
407 struct ieee80211_local *local = sdata->local;
408 struct ieee80211_key *key;
409 struct sta_info *sta;
410 int ret = -EINVAL;
411
412 if (!wiphy_ext_feature_isset(local->hw.wiphy,
413 NL80211_EXT_FEATURE_EXT_KEY_ID))
414 return -EINVAL;
415
416 sta = sta_info_get_bss(sdata, mac_addr);
417
418 if (!sta)
419 return -EINVAL;
420
421 if (sta->ptk_idx == key_idx)
422 return 0;
423
424 mutex_lock(&local->key_mtx);
425 key = key_mtx_dereference(local, sta->ptk[key_idx]);
426
427 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
428 ret = ieee80211_set_tx_key(key);
429
430 mutex_unlock(&local->key_mtx);
431 return ret;
432 }
433
ieee80211_add_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)434 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
435 u8 key_idx, bool pairwise, const u8 *mac_addr,
436 struct key_params *params)
437 {
438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
439 struct ieee80211_local *local = sdata->local;
440 struct sta_info *sta = NULL;
441 const struct ieee80211_cipher_scheme *cs = NULL;
442 struct ieee80211_key *key;
443 int err;
444
445 if (!ieee80211_sdata_running(sdata))
446 return -ENETDOWN;
447
448 if (pairwise && params->mode == NL80211_KEY_SET_TX)
449 return ieee80211_set_tx(sdata, mac_addr, key_idx);
450
451 /* reject WEP and TKIP keys if WEP failed to initialize */
452 switch (params->cipher) {
453 case WLAN_CIPHER_SUITE_WEP40:
454 case WLAN_CIPHER_SUITE_TKIP:
455 case WLAN_CIPHER_SUITE_WEP104:
456 if (WARN_ON_ONCE(fips_enabled))
457 return -EINVAL;
458 break;
459 case WLAN_CIPHER_SUITE_CCMP:
460 case WLAN_CIPHER_SUITE_CCMP_256:
461 case WLAN_CIPHER_SUITE_AES_CMAC:
462 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
463 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
464 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
465 case WLAN_CIPHER_SUITE_GCMP:
466 case WLAN_CIPHER_SUITE_GCMP_256:
467 break;
468 default:
469 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
470 break;
471 }
472
473 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
474 params->key, params->seq_len, params->seq,
475 cs);
476 if (IS_ERR(key))
477 return PTR_ERR(key);
478
479 if (pairwise)
480 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
481
482 if (params->mode == NL80211_KEY_NO_TX)
483 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
484
485 mutex_lock(&local->sta_mtx);
486
487 if (mac_addr) {
488 sta = sta_info_get_bss(sdata, mac_addr);
489 /*
490 * The ASSOC test makes sure the driver is ready to
491 * receive the key. When wpa_supplicant has roamed
492 * using FT, it attempts to set the key before
493 * association has completed, this rejects that attempt
494 * so it will set the key again after association.
495 *
496 * TODO: accept the key if we have a station entry and
497 * add it to the device after the station.
498 */
499 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
500 ieee80211_key_free_unused(key);
501 err = -ENOENT;
502 goto out_unlock;
503 }
504 }
505
506 switch (sdata->vif.type) {
507 case NL80211_IFTYPE_STATION:
508 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
509 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
510 break;
511 case NL80211_IFTYPE_AP:
512 case NL80211_IFTYPE_AP_VLAN:
513 /* Keys without a station are used for TX only */
514 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
515 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
516 break;
517 case NL80211_IFTYPE_ADHOC:
518 /* no MFP (yet) */
519 break;
520 case NL80211_IFTYPE_MESH_POINT:
521 #ifdef CONFIG_MAC80211_MESH
522 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
523 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
524 break;
525 #endif
526 case NL80211_IFTYPE_WDS:
527 case NL80211_IFTYPE_MONITOR:
528 case NL80211_IFTYPE_P2P_DEVICE:
529 case NL80211_IFTYPE_NAN:
530 case NL80211_IFTYPE_UNSPECIFIED:
531 case NUM_NL80211_IFTYPES:
532 case NL80211_IFTYPE_P2P_CLIENT:
533 case NL80211_IFTYPE_P2P_GO:
534 case NL80211_IFTYPE_OCB:
535 /* shouldn't happen */
536 WARN_ON_ONCE(1);
537 break;
538 }
539
540 if (sta)
541 sta->cipher_scheme = cs;
542
543 err = ieee80211_key_link(key, sdata, sta);
544
545 out_unlock:
546 mutex_unlock(&local->sta_mtx);
547
548 return err;
549 }
550
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr)551 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
552 u8 key_idx, bool pairwise, const u8 *mac_addr)
553 {
554 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
555 struct ieee80211_local *local = sdata->local;
556 struct sta_info *sta;
557 struct ieee80211_key *key = NULL;
558 int ret;
559
560 mutex_lock(&local->sta_mtx);
561 mutex_lock(&local->key_mtx);
562
563 if (mac_addr) {
564 ret = -ENOENT;
565
566 sta = sta_info_get_bss(sdata, mac_addr);
567 if (!sta)
568 goto out_unlock;
569
570 if (pairwise)
571 key = key_mtx_dereference(local, sta->ptk[key_idx]);
572 else
573 key = key_mtx_dereference(local,
574 sta->deflink.gtk[key_idx]);
575 } else
576 key = key_mtx_dereference(local, sdata->keys[key_idx]);
577
578 if (!key) {
579 ret = -ENOENT;
580 goto out_unlock;
581 }
582
583 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
584
585 ret = 0;
586 out_unlock:
587 mutex_unlock(&local->key_mtx);
588 mutex_unlock(&local->sta_mtx);
589
590 return ret;
591 }
592
ieee80211_get_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params * params))593 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
594 u8 key_idx, bool pairwise, const u8 *mac_addr,
595 void *cookie,
596 void (*callback)(void *cookie,
597 struct key_params *params))
598 {
599 struct ieee80211_sub_if_data *sdata;
600 struct sta_info *sta = NULL;
601 u8 seq[6] = {0};
602 struct key_params params;
603 struct ieee80211_key *key = NULL;
604 u64 pn64;
605 u32 iv32;
606 u16 iv16;
607 int err = -ENOENT;
608 struct ieee80211_key_seq kseq = {};
609
610 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
611
612 rcu_read_lock();
613
614 if (mac_addr) {
615 sta = sta_info_get_bss(sdata, mac_addr);
616 if (!sta)
617 goto out;
618
619 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
620 key = rcu_dereference(sta->ptk[key_idx]);
621 else if (!pairwise &&
622 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
623 NUM_DEFAULT_BEACON_KEYS)
624 key = rcu_dereference(sta->deflink.gtk[key_idx]);
625 } else
626 key = rcu_dereference(sdata->keys[key_idx]);
627
628 if (!key)
629 goto out;
630
631 memset(¶ms, 0, sizeof(params));
632
633 params.cipher = key->conf.cipher;
634
635 switch (key->conf.cipher) {
636 case WLAN_CIPHER_SUITE_TKIP:
637 pn64 = atomic64_read(&key->conf.tx_pn);
638 iv32 = TKIP_PN_TO_IV32(pn64);
639 iv16 = TKIP_PN_TO_IV16(pn64);
640
641 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
642 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
643 drv_get_key_seq(sdata->local, key, &kseq);
644 iv32 = kseq.tkip.iv32;
645 iv16 = kseq.tkip.iv16;
646 }
647
648 seq[0] = iv16 & 0xff;
649 seq[1] = (iv16 >> 8) & 0xff;
650 seq[2] = iv32 & 0xff;
651 seq[3] = (iv32 >> 8) & 0xff;
652 seq[4] = (iv32 >> 16) & 0xff;
653 seq[5] = (iv32 >> 24) & 0xff;
654 params.seq = seq;
655 params.seq_len = 6;
656 break;
657 case WLAN_CIPHER_SUITE_CCMP:
658 case WLAN_CIPHER_SUITE_CCMP_256:
659 case WLAN_CIPHER_SUITE_AES_CMAC:
660 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
661 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
662 offsetof(typeof(kseq), aes_cmac));
663 fallthrough;
664 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
665 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
666 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
667 offsetof(typeof(kseq), aes_gmac));
668 fallthrough;
669 case WLAN_CIPHER_SUITE_GCMP:
670 case WLAN_CIPHER_SUITE_GCMP_256:
671 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
672 offsetof(typeof(kseq), gcmp));
673
674 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
675 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
676 drv_get_key_seq(sdata->local, key, &kseq);
677 memcpy(seq, kseq.ccmp.pn, 6);
678 } else {
679 pn64 = atomic64_read(&key->conf.tx_pn);
680 seq[0] = pn64;
681 seq[1] = pn64 >> 8;
682 seq[2] = pn64 >> 16;
683 seq[3] = pn64 >> 24;
684 seq[4] = pn64 >> 32;
685 seq[5] = pn64 >> 40;
686 }
687 params.seq = seq;
688 params.seq_len = 6;
689 break;
690 default:
691 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
692 break;
693 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
694 break;
695 drv_get_key_seq(sdata->local, key, &kseq);
696 params.seq = kseq.hw.seq;
697 params.seq_len = kseq.hw.seq_len;
698 break;
699 }
700
701 params.key = key->conf.key;
702 params.key_len = key->conf.keylen;
703
704 callback(cookie, ¶ms);
705 err = 0;
706
707 out:
708 rcu_read_unlock();
709 return err;
710 }
711
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool uni,bool multi)712 static int ieee80211_config_default_key(struct wiphy *wiphy,
713 struct net_device *dev,
714 u8 key_idx, bool uni,
715 bool multi)
716 {
717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
718
719 ieee80211_set_default_key(sdata, key_idx, uni, multi);
720
721 return 0;
722 }
723
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)724 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
725 struct net_device *dev,
726 u8 key_idx)
727 {
728 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
729
730 ieee80211_set_default_mgmt_key(sdata, key_idx);
731
732 return 0;
733 }
734
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)735 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
736 struct net_device *dev,
737 u8 key_idx)
738 {
739 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
740
741 ieee80211_set_default_beacon_key(sdata, key_idx);
742
743 return 0;
744 }
745
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)746 void sta_set_rate_info_tx(struct sta_info *sta,
747 const struct ieee80211_tx_rate *rate,
748 struct rate_info *rinfo)
749 {
750 rinfo->flags = 0;
751 if (rate->flags & IEEE80211_TX_RC_MCS) {
752 rinfo->flags |= RATE_INFO_FLAGS_MCS;
753 rinfo->mcs = rate->idx;
754 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
755 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
756 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
757 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
758 } else {
759 struct ieee80211_supported_band *sband;
760 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
761 u16 brate;
762
763 sband = ieee80211_get_sband(sta->sdata);
764 WARN_ON_ONCE(sband && !sband->bitrates);
765 if (sband && sband->bitrates) {
766 brate = sband->bitrates[rate->idx].bitrate;
767 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
768 }
769 }
770 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
771 rinfo->bw = RATE_INFO_BW_40;
772 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
773 rinfo->bw = RATE_INFO_BW_80;
774 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
775 rinfo->bw = RATE_INFO_BW_160;
776 else
777 rinfo->bw = RATE_INFO_BW_20;
778 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
779 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
780 }
781
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)782 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
783 int idx, u8 *mac, struct station_info *sinfo)
784 {
785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
786 struct ieee80211_local *local = sdata->local;
787 struct sta_info *sta;
788 int ret = -ENOENT;
789
790 mutex_lock(&local->sta_mtx);
791
792 sta = sta_info_get_by_idx(sdata, idx);
793 if (sta) {
794 ret = 0;
795 memcpy(mac, sta->sta.addr, ETH_ALEN);
796 sta_set_sinfo(sta, sinfo, true);
797 }
798
799 mutex_unlock(&local->sta_mtx);
800
801 return ret;
802 }
803
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)804 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
805 int idx, struct survey_info *survey)
806 {
807 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
808
809 return drv_get_survey(local, idx, survey);
810 }
811
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)812 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
813 const u8 *mac, struct station_info *sinfo)
814 {
815 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
816 struct ieee80211_local *local = sdata->local;
817 struct sta_info *sta;
818 int ret = -ENOENT;
819
820 mutex_lock(&local->sta_mtx);
821
822 sta = sta_info_get_bss(sdata, mac);
823 if (sta) {
824 ret = 0;
825 sta_set_sinfo(sta, sinfo, true);
826 }
827
828 mutex_unlock(&local->sta_mtx);
829
830 return ret;
831 }
832
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)833 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
834 struct cfg80211_chan_def *chandef)
835 {
836 struct ieee80211_local *local = wiphy_priv(wiphy);
837 struct ieee80211_sub_if_data *sdata;
838 int ret = 0;
839
840 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
841 return 0;
842
843 mutex_lock(&local->mtx);
844 if (local->use_chanctx) {
845 sdata = wiphy_dereference(local->hw.wiphy,
846 local->monitor_sdata);
847 if (sdata) {
848 ieee80211_vif_release_channel(sdata);
849 ret = ieee80211_vif_use_channel(sdata, chandef,
850 IEEE80211_CHANCTX_EXCLUSIVE);
851 }
852 } else if (local->open_count == local->monitors) {
853 local->_oper_chandef = *chandef;
854 ieee80211_hw_config(local, 0);
855 }
856
857 if (ret == 0)
858 local->monitor_chandef = *chandef;
859 mutex_unlock(&local->mtx);
860
861 return ret;
862 }
863
864 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)865 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
866 const u8 *resp, size_t resp_len,
867 const struct ieee80211_csa_settings *csa,
868 const struct ieee80211_color_change_settings *cca)
869 {
870 struct probe_resp *new, *old;
871
872 if (!resp || !resp_len)
873 return 1;
874
875 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
876
877 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
878 if (!new)
879 return -ENOMEM;
880
881 new->len = resp_len;
882 memcpy(new->data, resp, resp_len);
883
884 if (csa)
885 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
886 csa->n_counter_offsets_presp *
887 sizeof(new->cntdwn_counter_offsets[0]));
888 else if (cca)
889 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
890
891 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
892 if (old)
893 kfree_rcu(old, rcu_head);
894
895 return 0;
896 }
897
ieee80211_set_fils_discovery(struct ieee80211_sub_if_data * sdata,struct cfg80211_fils_discovery * params)898 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
899 struct cfg80211_fils_discovery *params)
900 {
901 struct fils_discovery_data *new, *old = NULL;
902 struct ieee80211_fils_discovery *fd;
903
904 if (!params->tmpl || !params->tmpl_len)
905 return -EINVAL;
906
907 fd = &sdata->vif.bss_conf.fils_discovery;
908 fd->min_interval = params->min_interval;
909 fd->max_interval = params->max_interval;
910
911 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
912 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
913 if (!new)
914 return -ENOMEM;
915 new->len = params->tmpl_len;
916 memcpy(new->data, params->tmpl, params->tmpl_len);
917 rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
918
919 if (old)
920 kfree_rcu(old, rcu_head);
921
922 return 0;
923 }
924
925 static int
ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data * sdata,struct cfg80211_unsol_bcast_probe_resp * params)926 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
927 struct cfg80211_unsol_bcast_probe_resp *params)
928 {
929 struct unsol_bcast_probe_resp_data *new, *old = NULL;
930
931 if (!params->tmpl || !params->tmpl_len)
932 return -EINVAL;
933
934 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
935 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
936 if (!new)
937 return -ENOMEM;
938 new->len = params->tmpl_len;
939 memcpy(new->data, params->tmpl, params->tmpl_len);
940 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
941
942 if (old)
943 kfree_rcu(old, rcu_head);
944
945 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
946 params->interval;
947
948 return 0;
949 }
950
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)951 static int ieee80211_set_ftm_responder_params(
952 struct ieee80211_sub_if_data *sdata,
953 const u8 *lci, size_t lci_len,
954 const u8 *civicloc, size_t civicloc_len)
955 {
956 struct ieee80211_ftm_responder_params *new, *old;
957 struct ieee80211_bss_conf *bss_conf;
958 u8 *pos;
959 int len;
960
961 if (!lci_len && !civicloc_len)
962 return 0;
963
964 bss_conf = &sdata->vif.bss_conf;
965 old = bss_conf->ftmr_params;
966 len = lci_len + civicloc_len;
967
968 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
969 if (!new)
970 return -ENOMEM;
971
972 pos = (u8 *)(new + 1);
973 if (lci_len) {
974 new->lci_len = lci_len;
975 new->lci = pos;
976 memcpy(pos, lci, lci_len);
977 pos += lci_len;
978 }
979
980 if (civicloc_len) {
981 new->civicloc_len = civicloc_len;
982 new->civicloc = pos;
983 memcpy(pos, civicloc, civicloc_len);
984 pos += civicloc_len;
985 }
986
987 bss_conf->ftmr_params = new;
988 kfree(old);
989
990 return 0;
991 }
992
993 static int
ieee80211_copy_mbssid_beacon(u8 * pos,struct cfg80211_mbssid_elems * dst,struct cfg80211_mbssid_elems * src)994 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
995 struct cfg80211_mbssid_elems *src)
996 {
997 int i, offset = 0;
998
999 for (i = 0; i < src->cnt; i++) {
1000 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1001 dst->elem[i].len = src->elem[i].len;
1002 dst->elem[i].data = pos + offset;
1003 offset += dst->elem[i].len;
1004 }
1005 dst->cnt = src->cnt;
1006
1007 return offset;
1008 }
1009
ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa,const struct ieee80211_color_change_settings * cca)1010 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1011 struct cfg80211_beacon_data *params,
1012 const struct ieee80211_csa_settings *csa,
1013 const struct ieee80211_color_change_settings *cca)
1014 {
1015 struct cfg80211_mbssid_elems *mbssid = NULL;
1016 struct beacon_data *new, *old;
1017 int new_head_len, new_tail_len;
1018 int size, err;
1019 u32 changed = BSS_CHANGED_BEACON;
1020
1021 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1022
1023
1024 /* Need to have a beacon head if we don't have one yet */
1025 if (!params->head && !old)
1026 return -EINVAL;
1027
1028 /* new or old head? */
1029 if (params->head)
1030 new_head_len = params->head_len;
1031 else
1032 new_head_len = old->head_len;
1033
1034 /* new or old tail? */
1035 if (params->tail || !old)
1036 /* params->tail_len will be zero for !params->tail */
1037 new_tail_len = params->tail_len;
1038 else
1039 new_tail_len = old->tail_len;
1040
1041 size = sizeof(*new) + new_head_len + new_tail_len;
1042
1043 /* new or old multiple BSSID elements? */
1044 if (params->mbssid_ies) {
1045 mbssid = params->mbssid_ies;
1046 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1047 size += ieee80211_get_mbssid_beacon_len(mbssid);
1048 } else if (old && old->mbssid_ies) {
1049 mbssid = old->mbssid_ies;
1050 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1051 size += ieee80211_get_mbssid_beacon_len(mbssid);
1052 }
1053
1054 new = kzalloc(size, GFP_KERNEL);
1055 if (!new)
1056 return -ENOMEM;
1057
1058 /* start filling the new info now */
1059
1060 /*
1061 * pointers go into the block we allocated,
1062 * memory is | beacon_data | head | tail | mbssid_ies
1063 */
1064 new->head = ((u8 *) new) + sizeof(*new);
1065 new->tail = new->head + new_head_len;
1066 new->head_len = new_head_len;
1067 new->tail_len = new_tail_len;
1068 /* copy in optional mbssid_ies */
1069 if (mbssid) {
1070 u8 *pos = new->tail + new->tail_len;
1071
1072 new->mbssid_ies = (void *)pos;
1073 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1074 ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies, mbssid);
1075 /* update bssid_indicator */
1076 sdata->vif.bss_conf.bssid_indicator =
1077 ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1078 }
1079
1080 if (csa) {
1081 new->cntdwn_current_counter = csa->count;
1082 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1083 csa->n_counter_offsets_beacon *
1084 sizeof(new->cntdwn_counter_offsets[0]));
1085 } else if (cca) {
1086 new->cntdwn_current_counter = cca->count;
1087 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1088 }
1089
1090 /* copy in head */
1091 if (params->head)
1092 memcpy(new->head, params->head, new_head_len);
1093 else
1094 memcpy(new->head, old->head, new_head_len);
1095
1096 /* copy in optional tail */
1097 if (params->tail)
1098 memcpy(new->tail, params->tail, new_tail_len);
1099 else
1100 if (old)
1101 memcpy(new->tail, old->tail, new_tail_len);
1102
1103 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1104 params->probe_resp_len, csa, cca);
1105 if (err < 0) {
1106 kfree(new);
1107 return err;
1108 }
1109 if (err == 0)
1110 changed |= BSS_CHANGED_AP_PROBE_RESP;
1111
1112 if (params->ftm_responder != -1) {
1113 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1114 err = ieee80211_set_ftm_responder_params(sdata,
1115 params->lci,
1116 params->lci_len,
1117 params->civicloc,
1118 params->civicloc_len);
1119
1120 if (err < 0) {
1121 kfree(new);
1122 return err;
1123 }
1124
1125 changed |= BSS_CHANGED_FTM_RESPONDER;
1126 }
1127
1128 rcu_assign_pointer(sdata->u.ap.beacon, new);
1129
1130 if (old)
1131 kfree_rcu(old, rcu_head);
1132
1133 return changed;
1134 }
1135
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1136 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1137 struct cfg80211_ap_settings *params)
1138 {
1139 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1140 struct ieee80211_local *local = sdata->local;
1141 struct beacon_data *old;
1142 struct ieee80211_sub_if_data *vlan;
1143 u32 changed = BSS_CHANGED_BEACON_INT |
1144 BSS_CHANGED_BEACON_ENABLED |
1145 BSS_CHANGED_BEACON |
1146 BSS_CHANGED_SSID |
1147 BSS_CHANGED_P2P_PS |
1148 BSS_CHANGED_TXPOWER |
1149 BSS_CHANGED_TWT;
1150 int i, err;
1151 int prev_beacon_int;
1152
1153 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1154 if (old)
1155 return -EALREADY;
1156
1157 if (params->smps_mode != NL80211_SMPS_OFF)
1158 return -ENOTSUPP;
1159
1160 sdata->smps_mode = IEEE80211_SMPS_OFF;
1161
1162 sdata->needed_rx_chains = sdata->local->rx_chains;
1163
1164 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1165 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1166
1167 if (params->he_cap && params->he_oper) {
1168 sdata->vif.bss_conf.he_support = true;
1169 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1170 le32_get_bits(params->he_oper->he_oper_params,
1171 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1172 sdata->vif.bss_conf.frame_time_rts_th =
1173 le32_get_bits(params->he_oper->he_oper_params,
1174 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1175 changed |= BSS_CHANGED_HE_OBSS_PD;
1176
1177 if (params->beacon.he_bss_color.enabled)
1178 changed |= BSS_CHANGED_HE_BSS_COLOR;
1179 }
1180
1181 if (sdata->vif.type == NL80211_IFTYPE_AP &&
1182 params->mbssid_config.tx_wdev) {
1183 err = ieee80211_set_ap_mbssid_options(sdata,
1184 params->mbssid_config);
1185 if (err)
1186 return err;
1187 }
1188
1189 mutex_lock(&local->mtx);
1190 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
1191 IEEE80211_CHANCTX_SHARED);
1192 if (!err)
1193 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1194 mutex_unlock(&local->mtx);
1195 if (err) {
1196 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1197 return err;
1198 }
1199
1200 /*
1201 * Apply control port protocol, this allows us to
1202 * not encrypt dynamic WEP control frames.
1203 */
1204 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1205 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1206 sdata->control_port_over_nl80211 =
1207 params->crypto.control_port_over_nl80211;
1208 sdata->control_port_no_preauth =
1209 params->crypto.control_port_no_preauth;
1210 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1211 ¶ms->crypto,
1212 sdata->vif.type);
1213
1214 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1215 vlan->control_port_protocol =
1216 params->crypto.control_port_ethertype;
1217 vlan->control_port_no_encrypt =
1218 params->crypto.control_port_no_encrypt;
1219 vlan->control_port_over_nl80211 =
1220 params->crypto.control_port_over_nl80211;
1221 vlan->control_port_no_preauth =
1222 params->crypto.control_port_no_preauth;
1223 vlan->encrypt_headroom =
1224 ieee80211_cs_headroom(sdata->local,
1225 ¶ms->crypto,
1226 vlan->vif.type);
1227 }
1228
1229 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1230 sdata->vif.bss_conf.enable_beacon = true;
1231 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1232 sdata->vif.bss_conf.twt_responder = params->twt_responder;
1233 sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd;
1234 sdata->vif.bss_conf.he_bss_color = params->beacon.he_bss_color;
1235 sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1236 NL80211_BAND_S1GHZ;
1237
1238 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1239 if (params->ssid_len)
1240 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1241 params->ssid_len);
1242 sdata->vif.bss_conf.hidden_ssid =
1243 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1244
1245 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1246 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1247 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1248 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1249 if (params->p2p_opp_ps)
1250 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1251 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1252
1253 sdata->beacon_rate_set = false;
1254 if (wiphy_ext_feature_isset(local->hw.wiphy,
1255 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1256 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1257 sdata->beacon_rateidx_mask[i] =
1258 params->beacon_rate.control[i].legacy;
1259 if (sdata->beacon_rateidx_mask[i])
1260 sdata->beacon_rate_set = true;
1261 }
1262 }
1263
1264 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1265 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1266
1267 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL, NULL);
1268 if (err < 0)
1269 goto error;
1270 changed |= err;
1271
1272 if (params->fils_discovery.max_interval) {
1273 err = ieee80211_set_fils_discovery(sdata,
1274 ¶ms->fils_discovery);
1275 if (err < 0)
1276 goto error;
1277 changed |= BSS_CHANGED_FILS_DISCOVERY;
1278 }
1279
1280 if (params->unsol_bcast_probe_resp.interval) {
1281 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1282 ¶ms->unsol_bcast_probe_resp);
1283 if (err < 0)
1284 goto error;
1285 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1286 }
1287
1288 err = drv_start_ap(sdata->local, sdata);
1289 if (err) {
1290 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1291
1292 if (old)
1293 kfree_rcu(old, rcu_head);
1294 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1295 goto error;
1296 }
1297
1298 ieee80211_recalc_dtim(local, sdata);
1299 ieee80211_bss_info_change_notify(sdata, changed);
1300
1301 netif_carrier_on(dev);
1302 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1303 netif_carrier_on(vlan->dev);
1304
1305 return 0;
1306
1307 error:
1308 mutex_lock(&local->mtx);
1309 ieee80211_vif_release_channel(sdata);
1310 mutex_unlock(&local->mtx);
1311
1312 return err;
1313 }
1314
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * params)1315 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1316 struct cfg80211_beacon_data *params)
1317 {
1318 struct ieee80211_sub_if_data *sdata;
1319 struct ieee80211_bss_conf *bss_conf;
1320 struct beacon_data *old;
1321 int err;
1322
1323 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1324 sdata_assert_lock(sdata);
1325
1326 /* don't allow changing the beacon while a countdown is in place - offset
1327 * of channel switch counter may change
1328 */
1329 if (sdata->vif.bss_conf.csa_active || sdata->vif.bss_conf.color_change_active)
1330 return -EBUSY;
1331
1332 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1333 if (!old)
1334 return -ENOENT;
1335
1336 err = ieee80211_assign_beacon(sdata, params, NULL, NULL);
1337 if (err < 0)
1338 return err;
1339
1340 bss_conf = &sdata->vif.bss_conf;
1341 if (params->he_bss_color_valid &&
1342 params->he_bss_color.enabled != bss_conf->he_bss_color.enabled) {
1343 bss_conf->he_bss_color.enabled = params->he_bss_color.enabled;
1344 err |= BSS_CHANGED_HE_BSS_COLOR;
1345 }
1346
1347 ieee80211_bss_info_change_notify(sdata, err);
1348 return 0;
1349 }
1350
ieee80211_free_next_beacon(struct ieee80211_sub_if_data * sdata)1351 static void ieee80211_free_next_beacon(struct ieee80211_sub_if_data *sdata)
1352 {
1353 if (!sdata->u.ap.next_beacon)
1354 return;
1355
1356 kfree(sdata->u.ap.next_beacon->mbssid_ies);
1357 kfree(sdata->u.ap.next_beacon);
1358 sdata->u.ap.next_beacon = NULL;
1359 }
1360
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)1361 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1362 unsigned int link_id)
1363 {
1364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1365 struct ieee80211_sub_if_data *vlan;
1366 struct ieee80211_local *local = sdata->local;
1367 struct beacon_data *old_beacon;
1368 struct probe_resp *old_probe_resp;
1369 struct fils_discovery_data *old_fils_discovery;
1370 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1371 struct cfg80211_chan_def chandef;
1372
1373 sdata_assert_lock(sdata);
1374
1375 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1376 if (!old_beacon)
1377 return -ENOENT;
1378 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1379 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1380 sdata);
1381 old_unsol_bcast_probe_resp =
1382 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1383 sdata);
1384
1385 /* abort any running channel switch */
1386 mutex_lock(&local->mtx);
1387 sdata->vif.bss_conf.csa_active = false;
1388 if (sdata->csa_block_tx) {
1389 ieee80211_wake_vif_queues(local, sdata,
1390 IEEE80211_QUEUE_STOP_REASON_CSA);
1391 sdata->csa_block_tx = false;
1392 }
1393
1394 mutex_unlock(&local->mtx);
1395
1396 ieee80211_free_next_beacon(sdata);
1397
1398 /* turn off carrier for this interface and dependent VLANs */
1399 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1400 netif_carrier_off(vlan->dev);
1401 netif_carrier_off(dev);
1402
1403 /* remove beacon and probe response */
1404 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1405 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1406 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1407 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1408 kfree_rcu(old_beacon, rcu_head);
1409 if (old_probe_resp)
1410 kfree_rcu(old_probe_resp, rcu_head);
1411 if (old_fils_discovery)
1412 kfree_rcu(old_fils_discovery, rcu_head);
1413 if (old_unsol_bcast_probe_resp)
1414 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1415
1416 kfree(sdata->vif.bss_conf.ftmr_params);
1417 sdata->vif.bss_conf.ftmr_params = NULL;
1418
1419 __sta_info_flush(sdata, true);
1420 ieee80211_free_keys(sdata, true);
1421
1422 sdata->vif.bss_conf.enable_beacon = false;
1423 sdata->beacon_rate_set = false;
1424 sdata->vif.bss_conf.ssid_len = 0;
1425 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1426 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1427
1428 if (sdata->wdev.cac_started) {
1429 chandef = sdata->vif.bss_conf.chandef;
1430 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1431 cfg80211_cac_event(sdata->dev, &chandef,
1432 NL80211_RADAR_CAC_ABORTED,
1433 GFP_KERNEL);
1434 }
1435
1436 drv_stop_ap(sdata->local, sdata);
1437
1438 /* free all potentially still buffered bcast frames */
1439 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1440 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1441
1442 mutex_lock(&local->mtx);
1443 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1444 ieee80211_vif_release_channel(sdata);
1445 mutex_unlock(&local->mtx);
1446
1447 return 0;
1448 }
1449
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1450 static int sta_apply_auth_flags(struct ieee80211_local *local,
1451 struct sta_info *sta,
1452 u32 mask, u32 set)
1453 {
1454 int ret;
1455
1456 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1457 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1458 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1459 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1460 if (ret)
1461 return ret;
1462 }
1463
1464 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1465 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1466 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1467 /*
1468 * When peer becomes associated, init rate control as
1469 * well. Some drivers require rate control initialized
1470 * before drv_sta_state() is called.
1471 */
1472 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1473 rate_control_rate_init(sta);
1474
1475 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1476 if (ret)
1477 return ret;
1478 }
1479
1480 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1481 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1482 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1483 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1484 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1485 else
1486 ret = 0;
1487 if (ret)
1488 return ret;
1489 }
1490
1491 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1492 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1493 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1494 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1495 if (ret)
1496 return ret;
1497 }
1498
1499 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1500 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1501 test_sta_flag(sta, WLAN_STA_AUTH)) {
1502 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1503 if (ret)
1504 return ret;
1505 }
1506
1507 return 0;
1508 }
1509
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1510 static void sta_apply_mesh_params(struct ieee80211_local *local,
1511 struct sta_info *sta,
1512 struct station_parameters *params)
1513 {
1514 #ifdef CONFIG_MAC80211_MESH
1515 struct ieee80211_sub_if_data *sdata = sta->sdata;
1516 u32 changed = 0;
1517
1518 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1519 switch (params->plink_state) {
1520 case NL80211_PLINK_ESTAB:
1521 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1522 changed = mesh_plink_inc_estab_count(sdata);
1523 sta->mesh->plink_state = params->plink_state;
1524 sta->mesh->aid = params->peer_aid;
1525
1526 ieee80211_mps_sta_status_update(sta);
1527 changed |= ieee80211_mps_set_sta_local_pm(sta,
1528 sdata->u.mesh.mshcfg.power_mode);
1529
1530 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1531 /* init at low value */
1532 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1533
1534 break;
1535 case NL80211_PLINK_LISTEN:
1536 case NL80211_PLINK_BLOCKED:
1537 case NL80211_PLINK_OPN_SNT:
1538 case NL80211_PLINK_OPN_RCVD:
1539 case NL80211_PLINK_CNF_RCVD:
1540 case NL80211_PLINK_HOLDING:
1541 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1542 changed = mesh_plink_dec_estab_count(sdata);
1543 sta->mesh->plink_state = params->plink_state;
1544
1545 ieee80211_mps_sta_status_update(sta);
1546 changed |= ieee80211_mps_set_sta_local_pm(sta,
1547 NL80211_MESH_POWER_UNKNOWN);
1548 break;
1549 default:
1550 /* nothing */
1551 break;
1552 }
1553 }
1554
1555 switch (params->plink_action) {
1556 case NL80211_PLINK_ACTION_NO_ACTION:
1557 /* nothing */
1558 break;
1559 case NL80211_PLINK_ACTION_OPEN:
1560 changed |= mesh_plink_open(sta);
1561 break;
1562 case NL80211_PLINK_ACTION_BLOCK:
1563 changed |= mesh_plink_block(sta);
1564 break;
1565 }
1566
1567 if (params->local_pm)
1568 changed |= ieee80211_mps_set_sta_local_pm(sta,
1569 params->local_pm);
1570
1571 ieee80211_mbss_info_change_notify(sdata, changed);
1572 #endif
1573 }
1574
sta_apply_airtime_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1575 static void sta_apply_airtime_params(struct ieee80211_local *local,
1576 struct sta_info *sta,
1577 struct station_parameters *params)
1578 {
1579 u8 ac;
1580
1581 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
1582 struct airtime_sched_info *air_sched = &local->airtime[ac];
1583 struct airtime_info *air_info = &sta->airtime[ac];
1584 struct txq_info *txqi;
1585 u8 tid;
1586
1587 spin_lock_bh(&air_sched->lock);
1588 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
1589 if (air_info->weight == params->airtime_weight ||
1590 !sta->sta.txq[tid] ||
1591 ac != ieee80211_ac_from_tid(tid))
1592 continue;
1593
1594 airtime_weight_set(air_info, params->airtime_weight);
1595
1596 txqi = to_txq_info(sta->sta.txq[tid]);
1597 if (RB_EMPTY_NODE(&txqi->schedule_order))
1598 continue;
1599
1600 ieee80211_update_airtime_weight(local, air_sched,
1601 0, true);
1602 }
1603 spin_unlock_bh(&air_sched->lock);
1604 }
1605 }
1606
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1607 static int sta_apply_parameters(struct ieee80211_local *local,
1608 struct sta_info *sta,
1609 struct station_parameters *params)
1610 {
1611 int ret = 0;
1612 struct ieee80211_supported_band *sband;
1613 struct ieee80211_sub_if_data *sdata = sta->sdata;
1614 u32 mask, set;
1615
1616 sband = ieee80211_get_sband(sdata);
1617 if (!sband)
1618 return -EINVAL;
1619
1620 mask = params->sta_flags_mask;
1621 set = params->sta_flags_set;
1622
1623 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1624 /*
1625 * In mesh mode, ASSOCIATED isn't part of the nl80211
1626 * API but must follow AUTHENTICATED for driver state.
1627 */
1628 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1629 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1630 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1631 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1632 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1633 /*
1634 * TDLS -- everything follows authorized, but
1635 * only becoming authorized is possible, not
1636 * going back
1637 */
1638 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1639 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1640 BIT(NL80211_STA_FLAG_ASSOCIATED);
1641 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1642 BIT(NL80211_STA_FLAG_ASSOCIATED);
1643 }
1644 }
1645
1646 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1647 local->hw.queues >= IEEE80211_NUM_ACS)
1648 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1649
1650 /* auth flags will be set later for TDLS,
1651 * and for unassociated stations that move to associated */
1652 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1653 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1654 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1655 ret = sta_apply_auth_flags(local, sta, mask, set);
1656 if (ret)
1657 return ret;
1658 }
1659
1660 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1661 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1662 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1663 else
1664 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1665 }
1666
1667 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1668 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1669 if (set & BIT(NL80211_STA_FLAG_MFP))
1670 set_sta_flag(sta, WLAN_STA_MFP);
1671 else
1672 clear_sta_flag(sta, WLAN_STA_MFP);
1673 }
1674
1675 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1676 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1677 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1678 else
1679 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1680 }
1681
1682 /* mark TDLS channel switch support, if the AP allows it */
1683 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1684 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1685 params->ext_capab_len >= 4 &&
1686 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1687 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1688
1689 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1690 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1691 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1692 params->ext_capab_len >= 8 &&
1693 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1694 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1695
1696 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1697 sta->sta.uapsd_queues = params->uapsd_queues;
1698 sta->sta.max_sp = params->max_sp;
1699 }
1700
1701 /* The sender might not have sent the last bit, consider it to be 0 */
1702 if (params->ext_capab_len >= 8) {
1703 u8 val = (params->ext_capab[7] &
1704 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1705
1706 /* we did get all the bits, take the MSB as well */
1707 if (params->ext_capab_len >= 9) {
1708 u8 val_msb = params->ext_capab[8] &
1709 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1710 val_msb <<= 1;
1711 val |= val_msb;
1712 }
1713
1714 switch (val) {
1715 case 1:
1716 sta->sta.max_amsdu_subframes = 32;
1717 break;
1718 case 2:
1719 sta->sta.max_amsdu_subframes = 16;
1720 break;
1721 case 3:
1722 sta->sta.max_amsdu_subframes = 8;
1723 break;
1724 default:
1725 sta->sta.max_amsdu_subframes = 0;
1726 }
1727 }
1728
1729 /*
1730 * cfg80211 validates this (1-2007) and allows setting the AID
1731 * only when creating a new station entry
1732 */
1733 if (params->aid)
1734 sta->sta.aid = params->aid;
1735
1736 /*
1737 * Some of the following updates would be racy if called on an
1738 * existing station, via ieee80211_change_station(). However,
1739 * all such changes are rejected by cfg80211 except for updates
1740 * changing the supported rates on an existing but not yet used
1741 * TDLS peer.
1742 */
1743
1744 if (params->listen_interval >= 0)
1745 sta->listen_interval = params->listen_interval;
1746
1747 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1748 sta->sta.deflink.txpwr.type = params->txpwr.type;
1749 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1750 sta->sta.deflink.txpwr.power = params->txpwr.power;
1751 ret = drv_sta_set_txpwr(local, sdata, sta);
1752 if (ret)
1753 return ret;
1754 }
1755
1756 if (params->supported_rates && params->supported_rates_len) {
1757 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1758 sband, params->supported_rates,
1759 params->supported_rates_len,
1760 &sta->sta.deflink.supp_rates[sband->band]);
1761 }
1762
1763 if (params->ht_capa)
1764 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1765 params->ht_capa, sta);
1766
1767 /* VHT can override some HT caps such as the A-MSDU max length */
1768 if (params->vht_capa)
1769 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1770 params->vht_capa, sta);
1771
1772 if (params->he_capa)
1773 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1774 (void *)params->he_capa,
1775 params->he_capa_len,
1776 (void *)params->he_6ghz_capa,
1777 sta);
1778
1779 if (params->eht_capa)
1780 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1781 (u8 *)params->he_capa,
1782 params->he_capa_len,
1783 params->eht_capa,
1784 params->eht_capa_len,
1785 sta);
1786
1787 if (params->opmode_notif_used) {
1788 /* returned value is only needed for rc update, but the
1789 * rc isn't initialized here yet, so ignore it
1790 */
1791 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1792 sband->band);
1793 }
1794
1795 if (params->support_p2p_ps >= 0)
1796 sta->sta.support_p2p_ps = params->support_p2p_ps;
1797
1798 if (ieee80211_vif_is_mesh(&sdata->vif))
1799 sta_apply_mesh_params(local, sta, params);
1800
1801 if (params->airtime_weight)
1802 sta_apply_airtime_params(local, sta, params);
1803
1804
1805 /* set the STA state after all sta info from usermode has been set */
1806 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1807 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1808 ret = sta_apply_auth_flags(local, sta, mask, set);
1809 if (ret)
1810 return ret;
1811 }
1812
1813 return 0;
1814 }
1815
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1816 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1817 const u8 *mac,
1818 struct station_parameters *params)
1819 {
1820 struct ieee80211_local *local = wiphy_priv(wiphy);
1821 struct sta_info *sta;
1822 struct ieee80211_sub_if_data *sdata;
1823 int err;
1824
1825 if (params->vlan) {
1826 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1827
1828 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1829 sdata->vif.type != NL80211_IFTYPE_AP)
1830 return -EINVAL;
1831 } else
1832 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1833
1834 if (ether_addr_equal(mac, sdata->vif.addr))
1835 return -EINVAL;
1836
1837 if (!is_valid_ether_addr(mac))
1838 return -EINVAL;
1839
1840 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1841 sdata->vif.type == NL80211_IFTYPE_STATION &&
1842 !sdata->u.mgd.associated)
1843 return -EINVAL;
1844
1845 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1846 if (!sta)
1847 return -ENOMEM;
1848
1849 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1850 sta->sta.tdls = true;
1851
1852 err = sta_apply_parameters(local, sta, params);
1853 if (err) {
1854 sta_info_free(local, sta);
1855 return err;
1856 }
1857
1858 /*
1859 * for TDLS and for unassociated station, rate control should be
1860 * initialized only when rates are known and station is marked
1861 * authorized/associated
1862 */
1863 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1864 test_sta_flag(sta, WLAN_STA_ASSOC))
1865 rate_control_rate_init(sta);
1866
1867 return sta_info_insert(sta);
1868 }
1869
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1870 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1871 struct station_del_parameters *params)
1872 {
1873 struct ieee80211_sub_if_data *sdata;
1874
1875 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1876
1877 if (params->mac)
1878 return sta_info_destroy_addr_bss(sdata, params->mac);
1879
1880 sta_info_flush(sdata);
1881 return 0;
1882 }
1883
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1884 static int ieee80211_change_station(struct wiphy *wiphy,
1885 struct net_device *dev, const u8 *mac,
1886 struct station_parameters *params)
1887 {
1888 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1889 struct ieee80211_local *local = wiphy_priv(wiphy);
1890 struct sta_info *sta;
1891 struct ieee80211_sub_if_data *vlansdata;
1892 enum cfg80211_station_type statype;
1893 int err;
1894
1895 mutex_lock(&local->sta_mtx);
1896
1897 sta = sta_info_get_bss(sdata, mac);
1898 if (!sta) {
1899 err = -ENOENT;
1900 goto out_err;
1901 }
1902
1903 switch (sdata->vif.type) {
1904 case NL80211_IFTYPE_MESH_POINT:
1905 if (sdata->u.mesh.user_mpm)
1906 statype = CFG80211_STA_MESH_PEER_USER;
1907 else
1908 statype = CFG80211_STA_MESH_PEER_KERNEL;
1909 break;
1910 case NL80211_IFTYPE_ADHOC:
1911 statype = CFG80211_STA_IBSS;
1912 break;
1913 case NL80211_IFTYPE_STATION:
1914 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1915 statype = CFG80211_STA_AP_STA;
1916 break;
1917 }
1918 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1919 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1920 else
1921 statype = CFG80211_STA_TDLS_PEER_SETUP;
1922 break;
1923 case NL80211_IFTYPE_AP:
1924 case NL80211_IFTYPE_AP_VLAN:
1925 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1926 statype = CFG80211_STA_AP_CLIENT;
1927 else
1928 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1929 break;
1930 default:
1931 err = -EOPNOTSUPP;
1932 goto out_err;
1933 }
1934
1935 err = cfg80211_check_station_change(wiphy, params, statype);
1936 if (err)
1937 goto out_err;
1938
1939 if (params->vlan && params->vlan != sta->sdata->dev) {
1940 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1941
1942 if (params->vlan->ieee80211_ptr->use_4addr) {
1943 if (vlansdata->u.vlan.sta) {
1944 err = -EBUSY;
1945 goto out_err;
1946 }
1947
1948 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1949 __ieee80211_check_fast_rx_iface(vlansdata);
1950 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1951 }
1952
1953 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1954 sta->sdata->u.vlan.sta) {
1955 ieee80211_clear_fast_rx(sta);
1956 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1957 }
1958
1959 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1960 ieee80211_vif_dec_num_mcast(sta->sdata);
1961
1962 sta->sdata = vlansdata;
1963 ieee80211_check_fast_xmit(sta);
1964
1965 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1966 ieee80211_vif_inc_num_mcast(sta->sdata);
1967 cfg80211_send_layer2_update(sta->sdata->dev,
1968 sta->sta.addr);
1969 }
1970 }
1971
1972 err = sta_apply_parameters(local, sta, params);
1973 if (err)
1974 goto out_err;
1975
1976 mutex_unlock(&local->sta_mtx);
1977
1978 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1979 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1980 ieee80211_recalc_ps(local);
1981 ieee80211_recalc_ps_vif(sdata);
1982 }
1983
1984 return 0;
1985 out_err:
1986 mutex_unlock(&local->sta_mtx);
1987 return err;
1988 }
1989
1990 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1991 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1992 const u8 *dst, const u8 *next_hop)
1993 {
1994 struct ieee80211_sub_if_data *sdata;
1995 struct mesh_path *mpath;
1996 struct sta_info *sta;
1997
1998 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1999
2000 rcu_read_lock();
2001 sta = sta_info_get(sdata, next_hop);
2002 if (!sta) {
2003 rcu_read_unlock();
2004 return -ENOENT;
2005 }
2006
2007 mpath = mesh_path_add(sdata, dst);
2008 if (IS_ERR(mpath)) {
2009 rcu_read_unlock();
2010 return PTR_ERR(mpath);
2011 }
2012
2013 mesh_path_fix_nexthop(mpath, sta);
2014
2015 rcu_read_unlock();
2016 return 0;
2017 }
2018
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)2019 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2020 const u8 *dst)
2021 {
2022 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2023
2024 if (dst)
2025 return mesh_path_del(sdata, dst);
2026
2027 mesh_path_flush_by_iface(sdata);
2028 return 0;
2029 }
2030
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)2031 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2032 const u8 *dst, const u8 *next_hop)
2033 {
2034 struct ieee80211_sub_if_data *sdata;
2035 struct mesh_path *mpath;
2036 struct sta_info *sta;
2037
2038 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2039
2040 rcu_read_lock();
2041
2042 sta = sta_info_get(sdata, next_hop);
2043 if (!sta) {
2044 rcu_read_unlock();
2045 return -ENOENT;
2046 }
2047
2048 mpath = mesh_path_lookup(sdata, dst);
2049 if (!mpath) {
2050 rcu_read_unlock();
2051 return -ENOENT;
2052 }
2053
2054 mesh_path_fix_nexthop(mpath, sta);
2055
2056 rcu_read_unlock();
2057 return 0;
2058 }
2059
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)2060 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2061 struct mpath_info *pinfo)
2062 {
2063 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2064
2065 if (next_hop_sta)
2066 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2067 else
2068 eth_zero_addr(next_hop);
2069
2070 memset(pinfo, 0, sizeof(*pinfo));
2071
2072 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2073
2074 pinfo->filled = MPATH_INFO_FRAME_QLEN |
2075 MPATH_INFO_SN |
2076 MPATH_INFO_METRIC |
2077 MPATH_INFO_EXPTIME |
2078 MPATH_INFO_DISCOVERY_TIMEOUT |
2079 MPATH_INFO_DISCOVERY_RETRIES |
2080 MPATH_INFO_FLAGS |
2081 MPATH_INFO_HOP_COUNT |
2082 MPATH_INFO_PATH_CHANGE;
2083
2084 pinfo->frame_qlen = mpath->frame_queue.qlen;
2085 pinfo->sn = mpath->sn;
2086 pinfo->metric = mpath->metric;
2087 if (time_before(jiffies, mpath->exp_time))
2088 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2089 pinfo->discovery_timeout =
2090 jiffies_to_msecs(mpath->discovery_timeout);
2091 pinfo->discovery_retries = mpath->discovery_retries;
2092 if (mpath->flags & MESH_PATH_ACTIVE)
2093 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2094 if (mpath->flags & MESH_PATH_RESOLVING)
2095 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2096 if (mpath->flags & MESH_PATH_SN_VALID)
2097 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2098 if (mpath->flags & MESH_PATH_FIXED)
2099 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2100 if (mpath->flags & MESH_PATH_RESOLVED)
2101 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2102 pinfo->hop_count = mpath->hop_count;
2103 pinfo->path_change_count = mpath->path_change_count;
2104 }
2105
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2106 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2107 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2108
2109 {
2110 struct ieee80211_sub_if_data *sdata;
2111 struct mesh_path *mpath;
2112
2113 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2114
2115 rcu_read_lock();
2116 mpath = mesh_path_lookup(sdata, dst);
2117 if (!mpath) {
2118 rcu_read_unlock();
2119 return -ENOENT;
2120 }
2121 memcpy(dst, mpath->dst, ETH_ALEN);
2122 mpath_set_pinfo(mpath, next_hop, pinfo);
2123 rcu_read_unlock();
2124 return 0;
2125 }
2126
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)2127 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2128 int idx, u8 *dst, u8 *next_hop,
2129 struct mpath_info *pinfo)
2130 {
2131 struct ieee80211_sub_if_data *sdata;
2132 struct mesh_path *mpath;
2133
2134 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2135
2136 rcu_read_lock();
2137 mpath = mesh_path_lookup_by_idx(sdata, idx);
2138 if (!mpath) {
2139 rcu_read_unlock();
2140 return -ENOENT;
2141 }
2142 memcpy(dst, mpath->dst, ETH_ALEN);
2143 mpath_set_pinfo(mpath, next_hop, pinfo);
2144 rcu_read_unlock();
2145 return 0;
2146 }
2147
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2148 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2149 struct mpath_info *pinfo)
2150 {
2151 memset(pinfo, 0, sizeof(*pinfo));
2152 memcpy(mpp, mpath->mpp, ETH_ALEN);
2153
2154 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2155 }
2156
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2157 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2158 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2159
2160 {
2161 struct ieee80211_sub_if_data *sdata;
2162 struct mesh_path *mpath;
2163
2164 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2165
2166 rcu_read_lock();
2167 mpath = mpp_path_lookup(sdata, dst);
2168 if (!mpath) {
2169 rcu_read_unlock();
2170 return -ENOENT;
2171 }
2172 memcpy(dst, mpath->dst, ETH_ALEN);
2173 mpp_set_pinfo(mpath, mpp, pinfo);
2174 rcu_read_unlock();
2175 return 0;
2176 }
2177
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2178 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2179 int idx, u8 *dst, u8 *mpp,
2180 struct mpath_info *pinfo)
2181 {
2182 struct ieee80211_sub_if_data *sdata;
2183 struct mesh_path *mpath;
2184
2185 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2186
2187 rcu_read_lock();
2188 mpath = mpp_path_lookup_by_idx(sdata, idx);
2189 if (!mpath) {
2190 rcu_read_unlock();
2191 return -ENOENT;
2192 }
2193 memcpy(dst, mpath->dst, ETH_ALEN);
2194 mpp_set_pinfo(mpath, mpp, pinfo);
2195 rcu_read_unlock();
2196 return 0;
2197 }
2198
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2199 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2200 struct net_device *dev,
2201 struct mesh_config *conf)
2202 {
2203 struct ieee80211_sub_if_data *sdata;
2204 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2205
2206 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2207 return 0;
2208 }
2209
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2210 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2211 {
2212 return (mask >> (parm-1)) & 0x1;
2213 }
2214
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2215 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2216 const struct mesh_setup *setup)
2217 {
2218 u8 *new_ie;
2219 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2220 struct ieee80211_sub_if_data, u.mesh);
2221 int i;
2222
2223 /* allocate information elements */
2224 new_ie = NULL;
2225
2226 if (setup->ie_len) {
2227 new_ie = kmemdup(setup->ie, setup->ie_len,
2228 GFP_KERNEL);
2229 if (!new_ie)
2230 return -ENOMEM;
2231 }
2232 ifmsh->ie_len = setup->ie_len;
2233 ifmsh->ie = new_ie;
2234
2235 /* now copy the rest of the setup parameters */
2236 ifmsh->mesh_id_len = setup->mesh_id_len;
2237 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2238 ifmsh->mesh_sp_id = setup->sync_method;
2239 ifmsh->mesh_pp_id = setup->path_sel_proto;
2240 ifmsh->mesh_pm_id = setup->path_metric;
2241 ifmsh->user_mpm = setup->user_mpm;
2242 ifmsh->mesh_auth_id = setup->auth_id;
2243 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2244 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2245 if (setup->is_authenticated)
2246 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2247 if (setup->is_secure)
2248 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2249
2250 /* mcast rate setting in Mesh Node */
2251 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2252 sizeof(setup->mcast_rate));
2253 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2254
2255 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2256 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2257
2258 sdata->beacon_rate_set = false;
2259 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2260 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2261 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2262 sdata->beacon_rateidx_mask[i] =
2263 setup->beacon_rate.control[i].legacy;
2264 if (sdata->beacon_rateidx_mask[i])
2265 sdata->beacon_rate_set = true;
2266 }
2267 }
2268
2269 return 0;
2270 }
2271
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2272 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2273 struct net_device *dev, u32 mask,
2274 const struct mesh_config *nconf)
2275 {
2276 struct mesh_config *conf;
2277 struct ieee80211_sub_if_data *sdata;
2278 struct ieee80211_if_mesh *ifmsh;
2279
2280 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2281 ifmsh = &sdata->u.mesh;
2282
2283 /* Set the config options which we are interested in setting */
2284 conf = &(sdata->u.mesh.mshcfg);
2285 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2286 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2287 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2288 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2289 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2290 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2291 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2292 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2293 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2294 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2295 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2296 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2297 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2298 conf->element_ttl = nconf->element_ttl;
2299 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2300 if (ifmsh->user_mpm)
2301 return -EBUSY;
2302 conf->auto_open_plinks = nconf->auto_open_plinks;
2303 }
2304 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2305 conf->dot11MeshNbrOffsetMaxNeighbor =
2306 nconf->dot11MeshNbrOffsetMaxNeighbor;
2307 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2308 conf->dot11MeshHWMPmaxPREQretries =
2309 nconf->dot11MeshHWMPmaxPREQretries;
2310 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2311 conf->path_refresh_time = nconf->path_refresh_time;
2312 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2313 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2314 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2315 conf->dot11MeshHWMPactivePathTimeout =
2316 nconf->dot11MeshHWMPactivePathTimeout;
2317 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2318 conf->dot11MeshHWMPpreqMinInterval =
2319 nconf->dot11MeshHWMPpreqMinInterval;
2320 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2321 conf->dot11MeshHWMPperrMinInterval =
2322 nconf->dot11MeshHWMPperrMinInterval;
2323 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2324 mask))
2325 conf->dot11MeshHWMPnetDiameterTraversalTime =
2326 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2327 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2328 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2329 ieee80211_mesh_root_setup(ifmsh);
2330 }
2331 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2332 /* our current gate announcement implementation rides on root
2333 * announcements, so require this ifmsh to also be a root node
2334 * */
2335 if (nconf->dot11MeshGateAnnouncementProtocol &&
2336 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2337 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2338 ieee80211_mesh_root_setup(ifmsh);
2339 }
2340 conf->dot11MeshGateAnnouncementProtocol =
2341 nconf->dot11MeshGateAnnouncementProtocol;
2342 }
2343 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2344 conf->dot11MeshHWMPRannInterval =
2345 nconf->dot11MeshHWMPRannInterval;
2346 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2347 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2348 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2349 /* our RSSI threshold implementation is supported only for
2350 * devices that report signal in dBm.
2351 */
2352 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2353 return -ENOTSUPP;
2354 conf->rssi_threshold = nconf->rssi_threshold;
2355 }
2356 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2357 conf->ht_opmode = nconf->ht_opmode;
2358 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2359 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2360 }
2361 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2362 conf->dot11MeshHWMPactivePathToRootTimeout =
2363 nconf->dot11MeshHWMPactivePathToRootTimeout;
2364 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2365 conf->dot11MeshHWMProotInterval =
2366 nconf->dot11MeshHWMProotInterval;
2367 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2368 conf->dot11MeshHWMPconfirmationInterval =
2369 nconf->dot11MeshHWMPconfirmationInterval;
2370 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2371 conf->power_mode = nconf->power_mode;
2372 ieee80211_mps_local_status_update(sdata);
2373 }
2374 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2375 conf->dot11MeshAwakeWindowDuration =
2376 nconf->dot11MeshAwakeWindowDuration;
2377 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2378 conf->plink_timeout = nconf->plink_timeout;
2379 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2380 conf->dot11MeshConnectedToMeshGate =
2381 nconf->dot11MeshConnectedToMeshGate;
2382 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2383 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2384 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2385 conf->dot11MeshConnectedToAuthServer =
2386 nconf->dot11MeshConnectedToAuthServer;
2387 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2388 return 0;
2389 }
2390
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2391 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2392 const struct mesh_config *conf,
2393 const struct mesh_setup *setup)
2394 {
2395 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2396 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2397 int err;
2398
2399 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2400 err = copy_mesh_setup(ifmsh, setup);
2401 if (err)
2402 return err;
2403
2404 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2405
2406 /* can mesh use other SMPS modes? */
2407 sdata->smps_mode = IEEE80211_SMPS_OFF;
2408 sdata->needed_rx_chains = sdata->local->rx_chains;
2409
2410 mutex_lock(&sdata->local->mtx);
2411 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2412 IEEE80211_CHANCTX_SHARED);
2413 mutex_unlock(&sdata->local->mtx);
2414 if (err)
2415 return err;
2416
2417 return ieee80211_start_mesh(sdata);
2418 }
2419
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2420 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2421 {
2422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2423
2424 ieee80211_stop_mesh(sdata);
2425 mutex_lock(&sdata->local->mtx);
2426 ieee80211_vif_release_channel(sdata);
2427 kfree(sdata->u.mesh.ie);
2428 mutex_unlock(&sdata->local->mtx);
2429
2430 return 0;
2431 }
2432 #endif
2433
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2434 static int ieee80211_change_bss(struct wiphy *wiphy,
2435 struct net_device *dev,
2436 struct bss_parameters *params)
2437 {
2438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2439 struct ieee80211_supported_band *sband;
2440 u32 changed = 0;
2441
2442 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2443 return -ENOENT;
2444
2445 sband = ieee80211_get_sband(sdata);
2446 if (!sband)
2447 return -EINVAL;
2448
2449 if (params->use_cts_prot >= 0) {
2450 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2451 changed |= BSS_CHANGED_ERP_CTS_PROT;
2452 }
2453 if (params->use_short_preamble >= 0) {
2454 sdata->vif.bss_conf.use_short_preamble =
2455 params->use_short_preamble;
2456 changed |= BSS_CHANGED_ERP_PREAMBLE;
2457 }
2458
2459 if (!sdata->vif.bss_conf.use_short_slot &&
2460 (sband->band == NL80211_BAND_5GHZ ||
2461 sband->band == NL80211_BAND_6GHZ)) {
2462 sdata->vif.bss_conf.use_short_slot = true;
2463 changed |= BSS_CHANGED_ERP_SLOT;
2464 }
2465
2466 if (params->use_short_slot_time >= 0) {
2467 sdata->vif.bss_conf.use_short_slot =
2468 params->use_short_slot_time;
2469 changed |= BSS_CHANGED_ERP_SLOT;
2470 }
2471
2472 if (params->basic_rates) {
2473 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2474 wiphy->bands[sband->band],
2475 params->basic_rates,
2476 params->basic_rates_len,
2477 &sdata->vif.bss_conf.basic_rates);
2478 changed |= BSS_CHANGED_BASIC_RATES;
2479 ieee80211_check_rate_mask(sdata);
2480 }
2481
2482 if (params->ap_isolate >= 0) {
2483 if (params->ap_isolate)
2484 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2485 else
2486 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2487 ieee80211_check_fast_rx_iface(sdata);
2488 }
2489
2490 if (params->ht_opmode >= 0) {
2491 sdata->vif.bss_conf.ht_operation_mode =
2492 (u16) params->ht_opmode;
2493 changed |= BSS_CHANGED_HT;
2494 }
2495
2496 if (params->p2p_ctwindow >= 0) {
2497 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2498 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2499 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2500 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2501 changed |= BSS_CHANGED_P2P_PS;
2502 }
2503
2504 if (params->p2p_opp_ps > 0) {
2505 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2506 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2507 changed |= BSS_CHANGED_P2P_PS;
2508 } else if (params->p2p_opp_ps == 0) {
2509 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2510 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2511 changed |= BSS_CHANGED_P2P_PS;
2512 }
2513
2514 ieee80211_bss_info_change_notify(sdata, changed);
2515
2516 return 0;
2517 }
2518
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2519 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2520 struct net_device *dev,
2521 struct ieee80211_txq_params *params)
2522 {
2523 struct ieee80211_local *local = wiphy_priv(wiphy);
2524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2525 struct ieee80211_tx_queue_params p;
2526
2527 if (!local->ops->conf_tx)
2528 return -EOPNOTSUPP;
2529
2530 if (local->hw.queues < IEEE80211_NUM_ACS)
2531 return -EOPNOTSUPP;
2532
2533 memset(&p, 0, sizeof(p));
2534 p.aifs = params->aifs;
2535 p.cw_max = params->cwmax;
2536 p.cw_min = params->cwmin;
2537 p.txop = params->txop;
2538
2539 /*
2540 * Setting tx queue params disables u-apsd because it's only
2541 * called in master mode.
2542 */
2543 p.uapsd = false;
2544
2545 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2546
2547 sdata->tx_conf[params->ac] = p;
2548 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2549 wiphy_debug(local->hw.wiphy,
2550 "failed to set TX queue parameters for AC %d\n",
2551 params->ac);
2552 return -EINVAL;
2553 }
2554
2555 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2556
2557 return 0;
2558 }
2559
2560 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2561 static int ieee80211_suspend(struct wiphy *wiphy,
2562 struct cfg80211_wowlan *wowlan)
2563 {
2564 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2565 }
2566
ieee80211_resume(struct wiphy * wiphy)2567 static int ieee80211_resume(struct wiphy *wiphy)
2568 {
2569 return __ieee80211_resume(wiphy_priv(wiphy));
2570 }
2571 #else
2572 #define ieee80211_suspend NULL
2573 #define ieee80211_resume NULL
2574 #endif
2575
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2576 static int ieee80211_scan(struct wiphy *wiphy,
2577 struct cfg80211_scan_request *req)
2578 {
2579 struct ieee80211_sub_if_data *sdata;
2580
2581 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2582
2583 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2584 case NL80211_IFTYPE_STATION:
2585 case NL80211_IFTYPE_ADHOC:
2586 case NL80211_IFTYPE_MESH_POINT:
2587 case NL80211_IFTYPE_P2P_CLIENT:
2588 case NL80211_IFTYPE_P2P_DEVICE:
2589 break;
2590 case NL80211_IFTYPE_P2P_GO:
2591 if (sdata->local->ops->hw_scan)
2592 break;
2593 /*
2594 * FIXME: implement NoA while scanning in software,
2595 * for now fall through to allow scanning only when
2596 * beaconing hasn't been configured yet
2597 */
2598 fallthrough;
2599 case NL80211_IFTYPE_AP:
2600 /*
2601 * If the scan has been forced (and the driver supports
2602 * forcing), don't care about being beaconing already.
2603 * This will create problems to the attached stations (e.g. all
2604 * the frames sent while scanning on other channel will be
2605 * lost)
2606 */
2607 if (sdata->u.ap.beacon &&
2608 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2609 !(req->flags & NL80211_SCAN_FLAG_AP)))
2610 return -EOPNOTSUPP;
2611 break;
2612 case NL80211_IFTYPE_NAN:
2613 default:
2614 return -EOPNOTSUPP;
2615 }
2616
2617 return ieee80211_request_scan(sdata, req);
2618 }
2619
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2620 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2621 {
2622 ieee80211_scan_cancel(wiphy_priv(wiphy));
2623 }
2624
2625 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2626 ieee80211_sched_scan_start(struct wiphy *wiphy,
2627 struct net_device *dev,
2628 struct cfg80211_sched_scan_request *req)
2629 {
2630 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2631
2632 if (!sdata->local->ops->sched_scan_start)
2633 return -EOPNOTSUPP;
2634
2635 return ieee80211_request_sched_scan_start(sdata, req);
2636 }
2637
2638 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2639 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2640 u64 reqid)
2641 {
2642 struct ieee80211_local *local = wiphy_priv(wiphy);
2643
2644 if (!local->ops->sched_scan_stop)
2645 return -EOPNOTSUPP;
2646
2647 return ieee80211_request_sched_scan_stop(local);
2648 }
2649
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2650 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2651 struct cfg80211_auth_request *req)
2652 {
2653 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2654 }
2655
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2656 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2657 struct cfg80211_assoc_request *req)
2658 {
2659 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2660 }
2661
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2662 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2663 struct cfg80211_deauth_request *req)
2664 {
2665 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2666 }
2667
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2668 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2669 struct cfg80211_disassoc_request *req)
2670 {
2671 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2672 }
2673
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2674 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2675 struct cfg80211_ibss_params *params)
2676 {
2677 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2678 }
2679
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2680 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2681 {
2682 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2683 }
2684
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2685 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2686 struct ocb_setup *setup)
2687 {
2688 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2689 }
2690
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2691 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2692 {
2693 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2694 }
2695
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2696 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2697 int rate[NUM_NL80211_BANDS])
2698 {
2699 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2700
2701 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2702 sizeof(int) * NUM_NL80211_BANDS);
2703
2704 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2705
2706 return 0;
2707 }
2708
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2709 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2710 {
2711 struct ieee80211_local *local = wiphy_priv(wiphy);
2712 int err;
2713
2714 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2715 ieee80211_check_fast_xmit_all(local);
2716
2717 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2718
2719 if (err) {
2720 ieee80211_check_fast_xmit_all(local);
2721 return err;
2722 }
2723 }
2724
2725 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2726 (changed & WIPHY_PARAM_DYN_ACK)) {
2727 s16 coverage_class;
2728
2729 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2730 wiphy->coverage_class : -1;
2731 err = drv_set_coverage_class(local, coverage_class);
2732
2733 if (err)
2734 return err;
2735 }
2736
2737 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2738 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2739
2740 if (err)
2741 return err;
2742 }
2743
2744 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2745 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2746 return -EINVAL;
2747 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2748 }
2749 if (changed & WIPHY_PARAM_RETRY_LONG) {
2750 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2751 return -EINVAL;
2752 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2753 }
2754 if (changed &
2755 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2756 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2757
2758 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2759 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2760 WIPHY_PARAM_TXQ_QUANTUM))
2761 ieee80211_txq_set_params(local);
2762
2763 return 0;
2764 }
2765
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)2766 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2767 struct wireless_dev *wdev,
2768 enum nl80211_tx_power_setting type, int mbm)
2769 {
2770 struct ieee80211_local *local = wiphy_priv(wiphy);
2771 struct ieee80211_sub_if_data *sdata;
2772 enum nl80211_tx_power_setting txp_type = type;
2773 bool update_txp_type = false;
2774 bool has_monitor = false;
2775
2776 if (wdev) {
2777 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2778
2779 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2780 sdata = wiphy_dereference(local->hw.wiphy,
2781 local->monitor_sdata);
2782 if (!sdata)
2783 return -EOPNOTSUPP;
2784 }
2785
2786 switch (type) {
2787 case NL80211_TX_POWER_AUTOMATIC:
2788 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2789 txp_type = NL80211_TX_POWER_LIMITED;
2790 break;
2791 case NL80211_TX_POWER_LIMITED:
2792 case NL80211_TX_POWER_FIXED:
2793 if (mbm < 0 || (mbm % 100))
2794 return -EOPNOTSUPP;
2795 sdata->user_power_level = MBM_TO_DBM(mbm);
2796 break;
2797 }
2798
2799 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2800 update_txp_type = true;
2801 sdata->vif.bss_conf.txpower_type = txp_type;
2802 }
2803
2804 ieee80211_recalc_txpower(sdata, update_txp_type);
2805
2806 return 0;
2807 }
2808
2809 switch (type) {
2810 case NL80211_TX_POWER_AUTOMATIC:
2811 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2812 txp_type = NL80211_TX_POWER_LIMITED;
2813 break;
2814 case NL80211_TX_POWER_LIMITED:
2815 case NL80211_TX_POWER_FIXED:
2816 if (mbm < 0 || (mbm % 100))
2817 return -EOPNOTSUPP;
2818 local->user_power_level = MBM_TO_DBM(mbm);
2819 break;
2820 }
2821
2822 mutex_lock(&local->iflist_mtx);
2823 list_for_each_entry(sdata, &local->interfaces, list) {
2824 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2825 has_monitor = true;
2826 continue;
2827 }
2828 sdata->user_power_level = local->user_power_level;
2829 if (txp_type != sdata->vif.bss_conf.txpower_type)
2830 update_txp_type = true;
2831 sdata->vif.bss_conf.txpower_type = txp_type;
2832 }
2833 list_for_each_entry(sdata, &local->interfaces, list) {
2834 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2835 continue;
2836 ieee80211_recalc_txpower(sdata, update_txp_type);
2837 }
2838 mutex_unlock(&local->iflist_mtx);
2839
2840 if (has_monitor) {
2841 sdata = wiphy_dereference(local->hw.wiphy,
2842 local->monitor_sdata);
2843 if (sdata) {
2844 sdata->user_power_level = local->user_power_level;
2845 if (txp_type != sdata->vif.bss_conf.txpower_type)
2846 update_txp_type = true;
2847 sdata->vif.bss_conf.txpower_type = txp_type;
2848
2849 ieee80211_recalc_txpower(sdata, update_txp_type);
2850 }
2851 }
2852
2853 return 0;
2854 }
2855
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)2856 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2857 struct wireless_dev *wdev,
2858 int *dbm)
2859 {
2860 struct ieee80211_local *local = wiphy_priv(wiphy);
2861 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2862
2863 if (local->ops->get_txpower)
2864 return drv_get_txpower(local, sdata, dbm);
2865
2866 if (!local->use_chanctx)
2867 *dbm = local->hw.conf.power_level;
2868 else
2869 *dbm = sdata->vif.bss_conf.txpower;
2870
2871 return 0;
2872 }
2873
ieee80211_rfkill_poll(struct wiphy * wiphy)2874 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2875 {
2876 struct ieee80211_local *local = wiphy_priv(wiphy);
2877
2878 drv_rfkill_poll(local);
2879 }
2880
2881 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)2882 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2883 struct wireless_dev *wdev,
2884 void *data, int len)
2885 {
2886 struct ieee80211_local *local = wiphy_priv(wiphy);
2887 struct ieee80211_vif *vif = NULL;
2888
2889 if (!local->ops->testmode_cmd)
2890 return -EOPNOTSUPP;
2891
2892 if (wdev) {
2893 struct ieee80211_sub_if_data *sdata;
2894
2895 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2896 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2897 vif = &sdata->vif;
2898 }
2899
2900 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2901 }
2902
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)2903 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2904 struct sk_buff *skb,
2905 struct netlink_callback *cb,
2906 void *data, int len)
2907 {
2908 struct ieee80211_local *local = wiphy_priv(wiphy);
2909
2910 if (!local->ops->testmode_dump)
2911 return -EOPNOTSUPP;
2912
2913 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2914 }
2915 #endif
2916
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,enum ieee80211_smps_mode smps_mode)2917 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2918 enum ieee80211_smps_mode smps_mode)
2919 {
2920 const u8 *ap;
2921 enum ieee80211_smps_mode old_req;
2922 int err;
2923 struct sta_info *sta;
2924 bool tdls_peer_found = false;
2925
2926 lockdep_assert_held(&sdata->wdev.mtx);
2927
2928 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2929 return -EINVAL;
2930
2931 old_req = sdata->u.mgd.req_smps;
2932 sdata->u.mgd.req_smps = smps_mode;
2933
2934 if (old_req == smps_mode &&
2935 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2936 return 0;
2937
2938 /*
2939 * If not associated, or current association is not an HT
2940 * association, there's no need to do anything, just store
2941 * the new value until we associate.
2942 */
2943 if (!sdata->u.mgd.associated ||
2944 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2945 return 0;
2946
2947 ap = sdata->u.mgd.bssid;
2948
2949 rcu_read_lock();
2950 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2951 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2952 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2953 continue;
2954
2955 tdls_peer_found = true;
2956 break;
2957 }
2958 rcu_read_unlock();
2959
2960 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2961 if (tdls_peer_found || !sdata->u.mgd.powersave)
2962 smps_mode = IEEE80211_SMPS_OFF;
2963 else
2964 smps_mode = IEEE80211_SMPS_DYNAMIC;
2965 }
2966
2967 /* send SM PS frame to AP */
2968 err = ieee80211_send_smps_action(sdata, smps_mode,
2969 ap, ap);
2970 if (err)
2971 sdata->u.mgd.req_smps = old_req;
2972 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2973 ieee80211_teardown_tdls_peers(sdata);
2974
2975 return err;
2976 }
2977
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)2978 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2979 bool enabled, int timeout)
2980 {
2981 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2982 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2983
2984 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2985 return -EOPNOTSUPP;
2986
2987 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2988 return -EOPNOTSUPP;
2989
2990 if (enabled == sdata->u.mgd.powersave &&
2991 timeout == local->dynamic_ps_forced_timeout)
2992 return 0;
2993
2994 sdata->u.mgd.powersave = enabled;
2995 local->dynamic_ps_forced_timeout = timeout;
2996
2997 /* no change, but if automatic follow powersave */
2998 sdata_lock(sdata);
2999 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
3000 sdata_unlock(sdata);
3001
3002 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3003 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3004
3005 ieee80211_recalc_ps(local);
3006 ieee80211_recalc_ps_vif(sdata);
3007 ieee80211_check_fast_rx_iface(sdata);
3008
3009 return 0;
3010 }
3011
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)3012 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3013 struct net_device *dev,
3014 s32 rssi_thold, u32 rssi_hyst)
3015 {
3016 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3017 struct ieee80211_vif *vif = &sdata->vif;
3018 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3019
3020 if (rssi_thold == bss_conf->cqm_rssi_thold &&
3021 rssi_hyst == bss_conf->cqm_rssi_hyst)
3022 return 0;
3023
3024 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3025 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3026 return -EOPNOTSUPP;
3027
3028 bss_conf->cqm_rssi_thold = rssi_thold;
3029 bss_conf->cqm_rssi_hyst = rssi_hyst;
3030 bss_conf->cqm_rssi_low = 0;
3031 bss_conf->cqm_rssi_high = 0;
3032 sdata->u.mgd.last_cqm_event_signal = 0;
3033
3034 /* tell the driver upon association, unless already associated */
3035 if (sdata->u.mgd.associated &&
3036 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3037 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
3038
3039 return 0;
3040 }
3041
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)3042 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3043 struct net_device *dev,
3044 s32 rssi_low, s32 rssi_high)
3045 {
3046 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3047 struct ieee80211_vif *vif = &sdata->vif;
3048 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3049
3050 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
3051 return -EOPNOTSUPP;
3052
3053 bss_conf->cqm_rssi_low = rssi_low;
3054 bss_conf->cqm_rssi_high = rssi_high;
3055 bss_conf->cqm_rssi_thold = 0;
3056 bss_conf->cqm_rssi_hyst = 0;
3057 sdata->u.mgd.last_cqm_event_signal = 0;
3058
3059 /* tell the driver upon association, unless already associated */
3060 if (sdata->u.mgd.associated &&
3061 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3062 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
3063
3064 return 0;
3065 }
3066
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * addr,const struct cfg80211_bitrate_mask * mask)3067 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3068 struct net_device *dev,
3069 unsigned int link_id,
3070 const u8 *addr,
3071 const struct cfg80211_bitrate_mask *mask)
3072 {
3073 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3074 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3075 int i, ret;
3076
3077 if (!ieee80211_sdata_running(sdata))
3078 return -ENETDOWN;
3079
3080 /*
3081 * If active validate the setting and reject it if it doesn't leave
3082 * at least one basic rate usable, since we really have to be able
3083 * to send something, and if we're an AP we have to be able to do
3084 * so at a basic rate so that all clients can receive it.
3085 */
3086 if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3087 sdata->vif.bss_conf.chandef.chan) {
3088 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3089 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
3090
3091 if (!(mask->control[band].legacy & basic_rates))
3092 return -EINVAL;
3093 }
3094
3095 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3096 ret = drv_set_bitrate_mask(local, sdata, mask);
3097 if (ret)
3098 return ret;
3099 }
3100
3101 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3102 struct ieee80211_supported_band *sband = wiphy->bands[i];
3103 int j;
3104
3105 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3106 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3107 sizeof(mask->control[i].ht_mcs));
3108 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3109 mask->control[i].vht_mcs,
3110 sizeof(mask->control[i].vht_mcs));
3111
3112 sdata->rc_has_mcs_mask[i] = false;
3113 sdata->rc_has_vht_mcs_mask[i] = false;
3114 if (!sband)
3115 continue;
3116
3117 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3118 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3119 sdata->rc_has_mcs_mask[i] = true;
3120 break;
3121 }
3122 }
3123
3124 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3125 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3126 sdata->rc_has_vht_mcs_mask[i] = true;
3127 break;
3128 }
3129 }
3130 }
3131
3132 return 0;
3133 }
3134
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3135 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3136 struct net_device *dev,
3137 struct cfg80211_chan_def *chandef,
3138 u32 cac_time_ms)
3139 {
3140 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3141 struct ieee80211_local *local = sdata->local;
3142 int err;
3143
3144 mutex_lock(&local->mtx);
3145 if (!list_empty(&local->roc_list) || local->scanning) {
3146 err = -EBUSY;
3147 goto out_unlock;
3148 }
3149
3150 /* whatever, but channel contexts should not complain about that one */
3151 sdata->smps_mode = IEEE80211_SMPS_OFF;
3152 sdata->needed_rx_chains = local->rx_chains;
3153
3154 err = ieee80211_vif_use_channel(sdata, chandef,
3155 IEEE80211_CHANCTX_SHARED);
3156 if (err)
3157 goto out_unlock;
3158
3159 ieee80211_queue_delayed_work(&sdata->local->hw,
3160 &sdata->dfs_cac_timer_work,
3161 msecs_to_jiffies(cac_time_ms));
3162
3163 out_unlock:
3164 mutex_unlock(&local->mtx);
3165 return err;
3166 }
3167
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev)3168 static void ieee80211_end_cac(struct wiphy *wiphy,
3169 struct net_device *dev)
3170 {
3171 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3172 struct ieee80211_local *local = sdata->local;
3173
3174 mutex_lock(&local->mtx);
3175 list_for_each_entry(sdata, &local->interfaces, list) {
3176 /* it might be waiting for the local->mtx, but then
3177 * by the time it gets it, sdata->wdev.cac_started
3178 * will no longer be true
3179 */
3180 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3181
3182 if (sdata->wdev.cac_started) {
3183 ieee80211_vif_release_channel(sdata);
3184 sdata->wdev.cac_started = false;
3185 }
3186 }
3187 mutex_unlock(&local->mtx);
3188 }
3189
3190 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3191 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3192 {
3193 struct cfg80211_beacon_data *new_beacon;
3194 u8 *pos;
3195 int len;
3196
3197 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3198 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3199 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len +
3200 ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies);
3201
3202 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3203 if (!new_beacon)
3204 return NULL;
3205
3206 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3207 new_beacon->mbssid_ies =
3208 kzalloc(struct_size(new_beacon->mbssid_ies,
3209 elem, beacon->mbssid_ies->cnt),
3210 GFP_KERNEL);
3211 if (!new_beacon->mbssid_ies) {
3212 kfree(new_beacon);
3213 return NULL;
3214 }
3215 }
3216
3217 pos = (u8 *)(new_beacon + 1);
3218 if (beacon->head_len) {
3219 new_beacon->head_len = beacon->head_len;
3220 new_beacon->head = pos;
3221 memcpy(pos, beacon->head, beacon->head_len);
3222 pos += beacon->head_len;
3223 }
3224 if (beacon->tail_len) {
3225 new_beacon->tail_len = beacon->tail_len;
3226 new_beacon->tail = pos;
3227 memcpy(pos, beacon->tail, beacon->tail_len);
3228 pos += beacon->tail_len;
3229 }
3230 if (beacon->beacon_ies_len) {
3231 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3232 new_beacon->beacon_ies = pos;
3233 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3234 pos += beacon->beacon_ies_len;
3235 }
3236 if (beacon->proberesp_ies_len) {
3237 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3238 new_beacon->proberesp_ies = pos;
3239 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3240 pos += beacon->proberesp_ies_len;
3241 }
3242 if (beacon->assocresp_ies_len) {
3243 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3244 new_beacon->assocresp_ies = pos;
3245 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3246 pos += beacon->assocresp_ies_len;
3247 }
3248 if (beacon->probe_resp_len) {
3249 new_beacon->probe_resp_len = beacon->probe_resp_len;
3250 new_beacon->probe_resp = pos;
3251 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3252 pos += beacon->probe_resp_len;
3253 }
3254 if (beacon->mbssid_ies && beacon->mbssid_ies->cnt)
3255 pos += ieee80211_copy_mbssid_beacon(pos,
3256 new_beacon->mbssid_ies,
3257 beacon->mbssid_ies);
3258
3259 /* might copy -1, meaning no changes requested */
3260 new_beacon->ftm_responder = beacon->ftm_responder;
3261 if (beacon->lci) {
3262 new_beacon->lci_len = beacon->lci_len;
3263 new_beacon->lci = pos;
3264 memcpy(pos, beacon->lci, beacon->lci_len);
3265 pos += beacon->lci_len;
3266 }
3267 if (beacon->civicloc) {
3268 new_beacon->civicloc_len = beacon->civicloc_len;
3269 new_beacon->civicloc = pos;
3270 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3271 pos += beacon->civicloc_len;
3272 }
3273
3274 return new_beacon;
3275 }
3276
ieee80211_csa_finish(struct ieee80211_vif * vif)3277 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3278 {
3279 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3280 struct ieee80211_local *local = sdata->local;
3281
3282 rcu_read_lock();
3283
3284 if (vif->mbssid_tx_vif == vif) {
3285 /* Trigger ieee80211_csa_finish() on the non-transmitting
3286 * interfaces when channel switch is received on
3287 * transmitting interface
3288 */
3289 struct ieee80211_sub_if_data *iter;
3290
3291 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3292 if (!ieee80211_sdata_running(iter))
3293 continue;
3294
3295 if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3296 continue;
3297
3298 ieee80211_queue_work(&iter->local->hw,
3299 &iter->csa_finalize_work);
3300 }
3301 }
3302 ieee80211_queue_work(&local->hw, &sdata->csa_finalize_work);
3303
3304 rcu_read_unlock();
3305 }
3306 EXPORT_SYMBOL(ieee80211_csa_finish);
3307
ieee80211_channel_switch_disconnect(struct ieee80211_vif * vif,bool block_tx)3308 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3309 {
3310 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3311 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3312 struct ieee80211_local *local = sdata->local;
3313
3314 sdata->csa_block_tx = block_tx;
3315 sdata_info(sdata, "channel switch failed, disconnecting\n");
3316 ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work);
3317 }
3318 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3319
ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u32 * changed)3320 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3321 u32 *changed)
3322 {
3323 int err;
3324
3325 switch (sdata->vif.type) {
3326 case NL80211_IFTYPE_AP:
3327 if (!sdata->u.ap.next_beacon)
3328 return -EINVAL;
3329
3330 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3331 NULL, NULL);
3332 ieee80211_free_next_beacon(sdata);
3333
3334 if (err < 0)
3335 return err;
3336 *changed |= err;
3337 break;
3338 case NL80211_IFTYPE_ADHOC:
3339 err = ieee80211_ibss_finish_csa(sdata);
3340 if (err < 0)
3341 return err;
3342 *changed |= err;
3343 break;
3344 #ifdef CONFIG_MAC80211_MESH
3345 case NL80211_IFTYPE_MESH_POINT:
3346 err = ieee80211_mesh_finish_csa(sdata);
3347 if (err < 0)
3348 return err;
3349 *changed |= err;
3350 break;
3351 #endif
3352 default:
3353 WARN_ON(1);
3354 return -EINVAL;
3355 }
3356
3357 return 0;
3358 }
3359
__ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3360 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3361 {
3362 struct ieee80211_local *local = sdata->local;
3363 u32 changed = 0;
3364 int err;
3365
3366 sdata_assert_lock(sdata);
3367 lockdep_assert_held(&local->mtx);
3368 lockdep_assert_held(&local->chanctx_mtx);
3369
3370 /*
3371 * using reservation isn't immediate as it may be deferred until later
3372 * with multi-vif. once reservation is complete it will re-schedule the
3373 * work with no reserved_chanctx so verify chandef to check if it
3374 * completed successfully
3375 */
3376
3377 if (sdata->reserved_chanctx) {
3378 /*
3379 * with multi-vif csa driver may call ieee80211_csa_finish()
3380 * many times while waiting for other interfaces to use their
3381 * reservations
3382 */
3383 if (sdata->reserved_ready)
3384 return 0;
3385
3386 return ieee80211_vif_use_reserved_context(sdata);
3387 }
3388
3389 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3390 &sdata->csa_chandef))
3391 return -EINVAL;
3392
3393 sdata->vif.bss_conf.csa_active = false;
3394
3395 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3396 if (err)
3397 return err;
3398
3399 ieee80211_bss_info_change_notify(sdata, changed);
3400
3401 if (sdata->csa_block_tx) {
3402 ieee80211_wake_vif_queues(local, sdata,
3403 IEEE80211_QUEUE_STOP_REASON_CSA);
3404 sdata->csa_block_tx = false;
3405 }
3406
3407 err = drv_post_channel_switch(sdata);
3408 if (err)
3409 return err;
3410
3411 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef, 0);
3412
3413 return 0;
3414 }
3415
ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3416 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3417 {
3418 if (__ieee80211_csa_finalize(sdata)) {
3419 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3420 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3421 GFP_KERNEL);
3422 }
3423 }
3424
ieee80211_csa_finalize_work(struct work_struct * work)3425 void ieee80211_csa_finalize_work(struct work_struct *work)
3426 {
3427 struct ieee80211_sub_if_data *sdata =
3428 container_of(work, struct ieee80211_sub_if_data,
3429 csa_finalize_work);
3430 struct ieee80211_local *local = sdata->local;
3431
3432 sdata_lock(sdata);
3433 mutex_lock(&local->mtx);
3434 mutex_lock(&local->chanctx_mtx);
3435
3436 /* AP might have been stopped while waiting for the lock. */
3437 if (!sdata->vif.bss_conf.csa_active)
3438 goto unlock;
3439
3440 if (!ieee80211_sdata_running(sdata))
3441 goto unlock;
3442
3443 ieee80211_csa_finalize(sdata);
3444
3445 unlock:
3446 mutex_unlock(&local->chanctx_mtx);
3447 mutex_unlock(&local->mtx);
3448 sdata_unlock(sdata);
3449 }
3450
ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u32 * changed)3451 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3452 struct cfg80211_csa_settings *params,
3453 u32 *changed)
3454 {
3455 struct ieee80211_csa_settings csa = {};
3456 int err;
3457
3458 switch (sdata->vif.type) {
3459 case NL80211_IFTYPE_AP:
3460 sdata->u.ap.next_beacon =
3461 cfg80211_beacon_dup(¶ms->beacon_after);
3462 if (!sdata->u.ap.next_beacon)
3463 return -ENOMEM;
3464
3465 /*
3466 * With a count of 0, we don't have to wait for any
3467 * TBTT before switching, so complete the CSA
3468 * immediately. In theory, with a count == 1 we
3469 * should delay the switch until just before the next
3470 * TBTT, but that would complicate things so we switch
3471 * immediately too. If we would delay the switch
3472 * until the next TBTT, we would have to set the probe
3473 * response here.
3474 *
3475 * TODO: A channel switch with count <= 1 without
3476 * sending a CSA action frame is kind of useless,
3477 * because the clients won't know we're changing
3478 * channels. The action frame must be implemented
3479 * either here or in the userspace.
3480 */
3481 if (params->count <= 1)
3482 break;
3483
3484 if ((params->n_counter_offsets_beacon >
3485 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3486 (params->n_counter_offsets_presp >
3487 IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3488 ieee80211_free_next_beacon(sdata);
3489 return -EINVAL;
3490 }
3491
3492 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3493 csa.counter_offsets_presp = params->counter_offsets_presp;
3494 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3495 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3496 csa.count = params->count;
3497
3498 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa, NULL);
3499 if (err < 0) {
3500 ieee80211_free_next_beacon(sdata);
3501 return err;
3502 }
3503 *changed |= err;
3504
3505 break;
3506 case NL80211_IFTYPE_ADHOC:
3507 if (!sdata->vif.bss_conf.ibss_joined)
3508 return -EINVAL;
3509
3510 if (params->chandef.width != sdata->u.ibss.chandef.width)
3511 return -EINVAL;
3512
3513 switch (params->chandef.width) {
3514 case NL80211_CHAN_WIDTH_40:
3515 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3516 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3517 return -EINVAL;
3518 break;
3519 case NL80211_CHAN_WIDTH_5:
3520 case NL80211_CHAN_WIDTH_10:
3521 case NL80211_CHAN_WIDTH_20_NOHT:
3522 case NL80211_CHAN_WIDTH_20:
3523 break;
3524 default:
3525 return -EINVAL;
3526 }
3527
3528 /* changes into another band are not supported */
3529 if (sdata->u.ibss.chandef.chan->band !=
3530 params->chandef.chan->band)
3531 return -EINVAL;
3532
3533 /* see comments in the NL80211_IFTYPE_AP block */
3534 if (params->count > 1) {
3535 err = ieee80211_ibss_csa_beacon(sdata, params);
3536 if (err < 0)
3537 return err;
3538 *changed |= err;
3539 }
3540
3541 ieee80211_send_action_csa(sdata, params);
3542
3543 break;
3544 #ifdef CONFIG_MAC80211_MESH
3545 case NL80211_IFTYPE_MESH_POINT: {
3546 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3547
3548 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3549 return -EINVAL;
3550
3551 /* changes into another band are not supported */
3552 if (sdata->vif.bss_conf.chandef.chan->band !=
3553 params->chandef.chan->band)
3554 return -EINVAL;
3555
3556 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3557 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3558 if (!ifmsh->pre_value)
3559 ifmsh->pre_value = 1;
3560 else
3561 ifmsh->pre_value++;
3562 }
3563
3564 /* see comments in the NL80211_IFTYPE_AP block */
3565 if (params->count > 1) {
3566 err = ieee80211_mesh_csa_beacon(sdata, params);
3567 if (err < 0) {
3568 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3569 return err;
3570 }
3571 *changed |= err;
3572 }
3573
3574 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3575 ieee80211_send_action_csa(sdata, params);
3576
3577 break;
3578 }
3579 #endif
3580 default:
3581 return -EOPNOTSUPP;
3582 }
3583
3584 return 0;
3585 }
3586
ieee80211_color_change_abort(struct ieee80211_sub_if_data * sdata)3587 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata)
3588 {
3589 sdata->vif.bss_conf.color_change_active = false;
3590
3591 ieee80211_free_next_beacon(sdata);
3592
3593 cfg80211_color_change_aborted_notify(sdata->dev);
3594 }
3595
3596 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3597 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3598 struct cfg80211_csa_settings *params)
3599 {
3600 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3601 struct ieee80211_local *local = sdata->local;
3602 struct ieee80211_channel_switch ch_switch;
3603 struct ieee80211_chanctx_conf *conf;
3604 struct ieee80211_chanctx *chanctx;
3605 u32 changed = 0;
3606 int err;
3607
3608 sdata_assert_lock(sdata);
3609 lockdep_assert_held(&local->mtx);
3610
3611 if (!list_empty(&local->roc_list) || local->scanning)
3612 return -EBUSY;
3613
3614 if (sdata->wdev.cac_started)
3615 return -EBUSY;
3616
3617 if (cfg80211_chandef_identical(¶ms->chandef,
3618 &sdata->vif.bss_conf.chandef))
3619 return -EINVAL;
3620
3621 /* don't allow another channel switch if one is already active. */
3622 if (sdata->vif.bss_conf.csa_active)
3623 return -EBUSY;
3624
3625 mutex_lock(&local->chanctx_mtx);
3626 conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
3627 lockdep_is_held(&local->chanctx_mtx));
3628 if (!conf) {
3629 err = -EBUSY;
3630 goto out;
3631 }
3632
3633 if (params->chandef.chan->freq_offset) {
3634 /* this may work, but is untested */
3635 err = -EOPNOTSUPP;
3636 goto out;
3637 }
3638
3639 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3640
3641 ch_switch.timestamp = 0;
3642 ch_switch.device_timestamp = 0;
3643 ch_switch.block_tx = params->block_tx;
3644 ch_switch.chandef = params->chandef;
3645 ch_switch.count = params->count;
3646
3647 err = drv_pre_channel_switch(sdata, &ch_switch);
3648 if (err)
3649 goto out;
3650
3651 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef,
3652 chanctx->mode,
3653 params->radar_required);
3654 if (err)
3655 goto out;
3656
3657 /* if reservation is invalid then this will fail */
3658 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3659 if (err) {
3660 ieee80211_vif_unreserve_chanctx(sdata);
3661 goto out;
3662 }
3663
3664 /* if there is a color change in progress, abort it */
3665 if (sdata->vif.bss_conf.color_change_active)
3666 ieee80211_color_change_abort(sdata);
3667
3668 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3669 if (err) {
3670 ieee80211_vif_unreserve_chanctx(sdata);
3671 goto out;
3672 }
3673
3674 sdata->csa_chandef = params->chandef;
3675 sdata->csa_block_tx = params->block_tx;
3676 sdata->vif.bss_conf.csa_active = true;
3677
3678 if (sdata->csa_block_tx)
3679 ieee80211_stop_vif_queues(local, sdata,
3680 IEEE80211_QUEUE_STOP_REASON_CSA);
3681
3682 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3683 params->count, params->block_tx);
3684
3685 if (changed) {
3686 ieee80211_bss_info_change_notify(sdata, changed);
3687 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3688 } else {
3689 /* if the beacon didn't change, we can finalize immediately */
3690 ieee80211_csa_finalize(sdata);
3691 }
3692
3693 out:
3694 mutex_unlock(&local->chanctx_mtx);
3695 return err;
3696 }
3697
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3698 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3699 struct cfg80211_csa_settings *params)
3700 {
3701 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3702 struct ieee80211_local *local = sdata->local;
3703 int err;
3704
3705 mutex_lock(&local->mtx);
3706 err = __ieee80211_channel_switch(wiphy, dev, params);
3707 mutex_unlock(&local->mtx);
3708
3709 return err;
3710 }
3711
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)3712 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3713 {
3714 lockdep_assert_held(&local->mtx);
3715
3716 local->roc_cookie_counter++;
3717
3718 /* wow, you wrapped 64 bits ... more likely a bug */
3719 if (WARN_ON(local->roc_cookie_counter == 0))
3720 local->roc_cookie_counter++;
3721
3722 return local->roc_cookie_counter;
3723 }
3724
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)3725 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3726 u64 *cookie, gfp_t gfp)
3727 {
3728 unsigned long spin_flags;
3729 struct sk_buff *ack_skb;
3730 int id;
3731
3732 ack_skb = skb_copy(skb, gfp);
3733 if (!ack_skb)
3734 return -ENOMEM;
3735
3736 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3737 id = idr_alloc(&local->ack_status_frames, ack_skb,
3738 1, 0x2000, GFP_ATOMIC);
3739 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3740
3741 if (id < 0) {
3742 kfree_skb(ack_skb);
3743 return -ENOMEM;
3744 }
3745
3746 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3747
3748 *cookie = ieee80211_mgmt_tx_cookie(local);
3749 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3750
3751 return 0;
3752 }
3753
3754 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)3755 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3756 struct wireless_dev *wdev,
3757 struct mgmt_frame_regs *upd)
3758 {
3759 struct ieee80211_local *local = wiphy_priv(wiphy);
3760 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3761 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3762 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3763 bool global_change, intf_change;
3764
3765 global_change =
3766 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3767 (local->rx_mcast_action_reg !=
3768 !!(upd->global_mcast_stypes & action_mask));
3769 local->probe_req_reg = upd->global_stypes & preq_mask;
3770 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3771
3772 intf_change = (sdata->vif.probe_req_reg !=
3773 !!(upd->interface_stypes & preq_mask)) ||
3774 (sdata->vif.rx_mcast_action_reg !=
3775 !!(upd->interface_mcast_stypes & action_mask));
3776 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3777 sdata->vif.rx_mcast_action_reg =
3778 upd->interface_mcast_stypes & action_mask;
3779
3780 if (!local->open_count)
3781 return;
3782
3783 if (intf_change && ieee80211_sdata_running(sdata))
3784 drv_config_iface_filter(local, sdata,
3785 sdata->vif.probe_req_reg ?
3786 FIF_PROBE_REQ : 0,
3787 FIF_PROBE_REQ);
3788
3789 if (global_change)
3790 ieee80211_configure_filter(local);
3791 }
3792
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)3793 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3794 {
3795 struct ieee80211_local *local = wiphy_priv(wiphy);
3796
3797 if (local->started)
3798 return -EOPNOTSUPP;
3799
3800 return drv_set_antenna(local, tx_ant, rx_ant);
3801 }
3802
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)3803 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3804 {
3805 struct ieee80211_local *local = wiphy_priv(wiphy);
3806
3807 return drv_get_antenna(local, tx_ant, rx_ant);
3808 }
3809
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)3810 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3811 struct net_device *dev,
3812 struct cfg80211_gtk_rekey_data *data)
3813 {
3814 struct ieee80211_local *local = wiphy_priv(wiphy);
3815 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3816
3817 if (!local->ops->set_rekey_data)
3818 return -EOPNOTSUPP;
3819
3820 drv_set_rekey_data(local, sdata, data);
3821
3822 return 0;
3823 }
3824
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)3825 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3826 const u8 *peer, u64 *cookie)
3827 {
3828 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3829 struct ieee80211_local *local = sdata->local;
3830 struct ieee80211_qos_hdr *nullfunc;
3831 struct sk_buff *skb;
3832 int size = sizeof(*nullfunc);
3833 __le16 fc;
3834 bool qos;
3835 struct ieee80211_tx_info *info;
3836 struct sta_info *sta;
3837 struct ieee80211_chanctx_conf *chanctx_conf;
3838 enum nl80211_band band;
3839 int ret;
3840
3841 /* the lock is needed to assign the cookie later */
3842 mutex_lock(&local->mtx);
3843
3844 rcu_read_lock();
3845 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
3846 if (WARN_ON(!chanctx_conf)) {
3847 ret = -EINVAL;
3848 goto unlock;
3849 }
3850 band = chanctx_conf->def.chan->band;
3851 sta = sta_info_get_bss(sdata, peer);
3852 if (sta) {
3853 qos = sta->sta.wme;
3854 } else {
3855 ret = -ENOLINK;
3856 goto unlock;
3857 }
3858
3859 if (qos) {
3860 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3861 IEEE80211_STYPE_QOS_NULLFUNC |
3862 IEEE80211_FCTL_FROMDS);
3863 } else {
3864 size -= 2;
3865 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3866 IEEE80211_STYPE_NULLFUNC |
3867 IEEE80211_FCTL_FROMDS);
3868 }
3869
3870 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3871 if (!skb) {
3872 ret = -ENOMEM;
3873 goto unlock;
3874 }
3875
3876 skb->dev = dev;
3877
3878 skb_reserve(skb, local->hw.extra_tx_headroom);
3879
3880 nullfunc = skb_put(skb, size);
3881 nullfunc->frame_control = fc;
3882 nullfunc->duration_id = 0;
3883 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3884 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3885 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3886 nullfunc->seq_ctrl = 0;
3887
3888 info = IEEE80211_SKB_CB(skb);
3889
3890 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3891 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3892 info->band = band;
3893
3894 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3895 skb->priority = 7;
3896 if (qos)
3897 nullfunc->qos_ctrl = cpu_to_le16(7);
3898
3899 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3900 if (ret) {
3901 kfree_skb(skb);
3902 goto unlock;
3903 }
3904
3905 local_bh_disable();
3906 ieee80211_xmit(sdata, sta, skb);
3907 local_bh_enable();
3908
3909 ret = 0;
3910 unlock:
3911 rcu_read_unlock();
3912 mutex_unlock(&local->mtx);
3913
3914 return ret;
3915 }
3916
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,struct cfg80211_chan_def * chandef)3917 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3918 struct wireless_dev *wdev,
3919 unsigned int link_id,
3920 struct cfg80211_chan_def *chandef)
3921 {
3922 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3923 struct ieee80211_local *local = wiphy_priv(wiphy);
3924 struct ieee80211_chanctx_conf *chanctx_conf;
3925 int ret = -ENODATA;
3926
3927 rcu_read_lock();
3928 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
3929 if (chanctx_conf) {
3930 *chandef = sdata->vif.bss_conf.chandef;
3931 ret = 0;
3932 } else if (local->open_count > 0 &&
3933 local->open_count == local->monitors &&
3934 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3935 if (local->use_chanctx)
3936 *chandef = local->monitor_chandef;
3937 else
3938 *chandef = local->_oper_chandef;
3939 ret = 0;
3940 }
3941 rcu_read_unlock();
3942
3943 return ret;
3944 }
3945
3946 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)3947 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3948 {
3949 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3950 }
3951 #endif
3952
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)3953 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3954 struct net_device *dev,
3955 struct cfg80211_qos_map *qos_map)
3956 {
3957 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3958 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3959
3960 if (qos_map) {
3961 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3962 if (!new_qos_map)
3963 return -ENOMEM;
3964 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3965 } else {
3966 /* A NULL qos_map was passed to disable QoS mapping */
3967 new_qos_map = NULL;
3968 }
3969
3970 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3971 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3972 if (old_qos_map)
3973 kfree_rcu(old_qos_map, rcu_head);
3974
3975 return 0;
3976 }
3977
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,struct cfg80211_chan_def * chandef)3978 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3979 struct net_device *dev,
3980 unsigned int link_id,
3981 struct cfg80211_chan_def *chandef)
3982 {
3983 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3984 int ret;
3985 u32 changed = 0;
3986
3987 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3988 if (ret == 0)
3989 ieee80211_bss_info_change_notify(sdata, changed);
3990
3991 return ret;
3992 }
3993
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)3994 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3995 u8 tsid, const u8 *peer, u8 up,
3996 u16 admitted_time)
3997 {
3998 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3999 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4000 int ac = ieee802_1d_to_ac[up];
4001
4002 if (sdata->vif.type != NL80211_IFTYPE_STATION)
4003 return -EOPNOTSUPP;
4004
4005 if (!(sdata->wmm_acm & BIT(up)))
4006 return -EINVAL;
4007
4008 if (ifmgd->tx_tspec[ac].admitted_time)
4009 return -EBUSY;
4010
4011 if (admitted_time) {
4012 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4013 ifmgd->tx_tspec[ac].tsid = tsid;
4014 ifmgd->tx_tspec[ac].up = up;
4015 }
4016
4017 return 0;
4018 }
4019
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)4020 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4021 u8 tsid, const u8 *peer)
4022 {
4023 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4024 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4025 struct ieee80211_local *local = wiphy_priv(wiphy);
4026 int ac;
4027
4028 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4029 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4030
4031 /* skip unused entries */
4032 if (!tx_tspec->admitted_time)
4033 continue;
4034
4035 if (tx_tspec->tsid != tsid)
4036 continue;
4037
4038 /* due to this new packets will be reassigned to non-ACM ACs */
4039 tx_tspec->up = -1;
4040
4041 /* Make sure that all packets have been sent to avoid to
4042 * restore the QoS params on packets that are still on the
4043 * queues.
4044 */
4045 synchronize_net();
4046 ieee80211_flush_queues(local, sdata, false);
4047
4048 /* restore the normal QoS parameters
4049 * (unconditionally to avoid races)
4050 */
4051 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4052 tx_tspec->downgraded = false;
4053 ieee80211_sta_handle_tspec_ac_params(sdata);
4054
4055 /* finally clear all the data */
4056 memset(tx_tspec, 0, sizeof(*tx_tspec));
4057
4058 return 0;
4059 }
4060
4061 return -ENOENT;
4062 }
4063
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)4064 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4065 u8 inst_id,
4066 enum nl80211_nan_func_term_reason reason,
4067 gfp_t gfp)
4068 {
4069 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4070 struct cfg80211_nan_func *func;
4071 u64 cookie;
4072
4073 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4074 return;
4075
4076 spin_lock_bh(&sdata->u.nan.func_lock);
4077
4078 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4079 if (WARN_ON(!func)) {
4080 spin_unlock_bh(&sdata->u.nan.func_lock);
4081 return;
4082 }
4083
4084 cookie = func->cookie;
4085 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4086
4087 spin_unlock_bh(&sdata->u.nan.func_lock);
4088
4089 cfg80211_free_nan_func(func);
4090
4091 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4092 reason, cookie, gfp);
4093 }
4094 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4095
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)4096 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4097 struct cfg80211_nan_match_params *match,
4098 gfp_t gfp)
4099 {
4100 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4101 struct cfg80211_nan_func *func;
4102
4103 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4104 return;
4105
4106 spin_lock_bh(&sdata->u.nan.func_lock);
4107
4108 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
4109 if (WARN_ON(!func)) {
4110 spin_unlock_bh(&sdata->u.nan.func_lock);
4111 return;
4112 }
4113 match->cookie = func->cookie;
4114
4115 spin_unlock_bh(&sdata->u.nan.func_lock);
4116
4117 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4118 }
4119 EXPORT_SYMBOL(ieee80211_nan_func_match);
4120
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)4121 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4122 struct net_device *dev,
4123 const bool enabled)
4124 {
4125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4126
4127 sdata->u.ap.multicast_to_unicast = enabled;
4128
4129 return 0;
4130 }
4131
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)4132 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4133 struct txq_info *txqi)
4134 {
4135 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4136 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4137 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4138 }
4139
4140 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4141 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4142 txqstats->backlog_packets = txqi->tin.backlog_packets;
4143 }
4144
4145 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4146 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4147 txqstats->flows = txqi->tin.flows;
4148 }
4149
4150 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4151 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4152 txqstats->drops = txqi->cstats.drop_count;
4153 }
4154
4155 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4156 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4157 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4158 }
4159
4160 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4161 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4162 txqstats->overlimit = txqi->tin.overlimit;
4163 }
4164
4165 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4166 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4167 txqstats->collisions = txqi->tin.collisions;
4168 }
4169
4170 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4171 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4172 txqstats->tx_bytes = txqi->tin.tx_bytes;
4173 }
4174
4175 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4176 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4177 txqstats->tx_packets = txqi->tin.tx_packets;
4178 }
4179 }
4180
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)4181 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4182 struct wireless_dev *wdev,
4183 struct cfg80211_txq_stats *txqstats)
4184 {
4185 struct ieee80211_local *local = wiphy_priv(wiphy);
4186 struct ieee80211_sub_if_data *sdata;
4187 int ret = 0;
4188
4189 if (!local->ops->wake_tx_queue)
4190 return 1;
4191
4192 spin_lock_bh(&local->fq.lock);
4193 rcu_read_lock();
4194
4195 if (wdev) {
4196 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4197 if (!sdata->vif.txq) {
4198 ret = 1;
4199 goto out;
4200 }
4201 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4202 } else {
4203 /* phy stats */
4204 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4205 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4206 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4207 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4208 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4209 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4210 txqstats->backlog_packets = local->fq.backlog;
4211 txqstats->backlog_bytes = local->fq.memory_usage;
4212 txqstats->overlimit = local->fq.overlimit;
4213 txqstats->overmemory = local->fq.overmemory;
4214 txqstats->collisions = local->fq.collisions;
4215 txqstats->max_flows = local->fq.flows_cnt;
4216 }
4217
4218 out:
4219 rcu_read_unlock();
4220 spin_unlock_bh(&local->fq.lock);
4221
4222 return ret;
4223 }
4224
4225 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4226 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4227 struct net_device *dev,
4228 struct cfg80211_ftm_responder_stats *ftm_stats)
4229 {
4230 struct ieee80211_local *local = wiphy_priv(wiphy);
4231 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4232
4233 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4234 }
4235
4236 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4237 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4238 struct cfg80211_pmsr_request *request)
4239 {
4240 struct ieee80211_local *local = wiphy_priv(wiphy);
4241 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4242
4243 return drv_start_pmsr(local, sdata, request);
4244 }
4245
4246 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4247 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4248 struct cfg80211_pmsr_request *request)
4249 {
4250 struct ieee80211_local *local = wiphy_priv(wiphy);
4251 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4252
4253 return drv_abort_pmsr(local, sdata, request);
4254 }
4255
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4256 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4257 struct net_device *dev,
4258 struct cfg80211_tid_config *tid_conf)
4259 {
4260 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4261 struct sta_info *sta;
4262 int ret;
4263
4264 if (!sdata->local->ops->set_tid_config)
4265 return -EOPNOTSUPP;
4266
4267 if (!tid_conf->peer)
4268 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4269
4270 mutex_lock(&sdata->local->sta_mtx);
4271 sta = sta_info_get_bss(sdata, tid_conf->peer);
4272 if (!sta) {
4273 mutex_unlock(&sdata->local->sta_mtx);
4274 return -ENOENT;
4275 }
4276
4277 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4278 mutex_unlock(&sdata->local->sta_mtx);
4279
4280 return ret;
4281 }
4282
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4283 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4284 struct net_device *dev,
4285 const u8 *peer, u8 tids)
4286 {
4287 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4288 struct sta_info *sta;
4289 int ret;
4290
4291 if (!sdata->local->ops->reset_tid_config)
4292 return -EOPNOTSUPP;
4293
4294 if (!peer)
4295 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4296
4297 mutex_lock(&sdata->local->sta_mtx);
4298 sta = sta_info_get_bss(sdata, peer);
4299 if (!sta) {
4300 mutex_unlock(&sdata->local->sta_mtx);
4301 return -ENOENT;
4302 }
4303
4304 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4305 mutex_unlock(&sdata->local->sta_mtx);
4306
4307 return ret;
4308 }
4309
ieee80211_set_sar_specs(struct wiphy * wiphy,struct cfg80211_sar_specs * sar)4310 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4311 struct cfg80211_sar_specs *sar)
4312 {
4313 struct ieee80211_local *local = wiphy_priv(wiphy);
4314
4315 if (!local->ops->set_sar_specs)
4316 return -EOPNOTSUPP;
4317
4318 return local->ops->set_sar_specs(&local->hw, sar);
4319 }
4320
4321 static int
ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data * sdata,u32 * changed)4322 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4323 u32 *changed)
4324 {
4325 switch (sdata->vif.type) {
4326 case NL80211_IFTYPE_AP: {
4327 int ret;
4328
4329 if (!sdata->u.ap.next_beacon)
4330 return -EINVAL;
4331
4332 ret = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
4333 NULL, NULL);
4334 ieee80211_free_next_beacon(sdata);
4335
4336 if (ret < 0)
4337 return ret;
4338
4339 *changed |= ret;
4340 break;
4341 }
4342 default:
4343 WARN_ON_ONCE(1);
4344 return -EINVAL;
4345 }
4346
4347 return 0;
4348 }
4349
4350 static int
ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_color_change_settings * params,u32 * changed)4351 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4352 struct cfg80211_color_change_settings *params,
4353 u32 *changed)
4354 {
4355 struct ieee80211_color_change_settings color_change = {};
4356 int err;
4357
4358 switch (sdata->vif.type) {
4359 case NL80211_IFTYPE_AP:
4360 sdata->u.ap.next_beacon =
4361 cfg80211_beacon_dup(¶ms->beacon_next);
4362 if (!sdata->u.ap.next_beacon)
4363 return -ENOMEM;
4364
4365 if (params->count <= 1)
4366 break;
4367
4368 color_change.counter_offset_beacon =
4369 params->counter_offset_beacon;
4370 color_change.counter_offset_presp =
4371 params->counter_offset_presp;
4372 color_change.count = params->count;
4373
4374 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_color_change,
4375 NULL, &color_change);
4376 if (err < 0) {
4377 ieee80211_free_next_beacon(sdata);
4378 return err;
4379 }
4380 *changed |= err;
4381 break;
4382 default:
4383 return -EOPNOTSUPP;
4384 }
4385
4386 return 0;
4387 }
4388
4389 static void
ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data * sdata,u8 color,int enable,u32 changed)4390 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4391 u8 color, int enable, u32 changed)
4392 {
4393 sdata->vif.bss_conf.he_bss_color.color = color;
4394 sdata->vif.bss_conf.he_bss_color.enabled = enable;
4395 changed |= BSS_CHANGED_HE_BSS_COLOR;
4396
4397 ieee80211_bss_info_change_notify(sdata, changed);
4398
4399 if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4400 struct ieee80211_sub_if_data *child;
4401
4402 mutex_lock(&sdata->local->iflist_mtx);
4403 list_for_each_entry(child, &sdata->local->interfaces, list) {
4404 if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4405 child->vif.bss_conf.he_bss_color.color = color;
4406 child->vif.bss_conf.he_bss_color.enabled = enable;
4407 ieee80211_bss_info_change_notify(child,
4408 BSS_CHANGED_HE_BSS_COLOR);
4409 }
4410 }
4411 mutex_unlock(&sdata->local->iflist_mtx);
4412 }
4413 }
4414
ieee80211_color_change_finalize(struct ieee80211_sub_if_data * sdata)4415 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4416 {
4417 struct ieee80211_local *local = sdata->local;
4418 u32 changed = 0;
4419 int err;
4420
4421 sdata_assert_lock(sdata);
4422 lockdep_assert_held(&local->mtx);
4423
4424 sdata->vif.bss_conf.color_change_active = false;
4425
4426 err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4427 if (err) {
4428 cfg80211_color_change_aborted_notify(sdata->dev);
4429 return err;
4430 }
4431
4432 ieee80211_color_change_bss_config_notify(sdata,
4433 sdata->vif.bss_conf.color_change_color,
4434 1, changed);
4435 cfg80211_color_change_notify(sdata->dev);
4436
4437 return 0;
4438 }
4439
ieee80211_color_change_finalize_work(struct work_struct * work)4440 void ieee80211_color_change_finalize_work(struct work_struct *work)
4441 {
4442 struct ieee80211_sub_if_data *sdata =
4443 container_of(work, struct ieee80211_sub_if_data,
4444 color_change_finalize_work);
4445 struct ieee80211_local *local = sdata->local;
4446
4447 sdata_lock(sdata);
4448 mutex_lock(&local->mtx);
4449
4450 /* AP might have been stopped while waiting for the lock. */
4451 if (!sdata->vif.bss_conf.color_change_active)
4452 goto unlock;
4453
4454 if (!ieee80211_sdata_running(sdata))
4455 goto unlock;
4456
4457 ieee80211_color_change_finalize(sdata);
4458
4459 unlock:
4460 mutex_unlock(&local->mtx);
4461 sdata_unlock(sdata);
4462 }
4463
ieee80211_color_change_finish(struct ieee80211_vif * vif)4464 void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4465 {
4466 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4467
4468 ieee80211_queue_work(&sdata->local->hw,
4469 &sdata->color_change_finalize_work);
4470 }
4471 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4472
4473 void
ieeee80211_obss_color_collision_notify(struct ieee80211_vif * vif,u64 color_bitmap,gfp_t gfp)4474 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4475 u64 color_bitmap, gfp_t gfp)
4476 {
4477 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4478
4479 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
4480 return;
4481
4482 cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap, gfp);
4483 }
4484 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify);
4485
4486 static int
ieee80211_color_change(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_color_change_settings * params)4487 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4488 struct cfg80211_color_change_settings *params)
4489 {
4490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4491 struct ieee80211_local *local = sdata->local;
4492 u32 changed = 0;
4493 int err;
4494
4495 sdata_assert_lock(sdata);
4496
4497 if (sdata->vif.bss_conf.nontransmitted)
4498 return -EINVAL;
4499
4500 mutex_lock(&local->mtx);
4501
4502 /* don't allow another color change if one is already active or if csa
4503 * is active
4504 */
4505 if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) {
4506 err = -EBUSY;
4507 goto out;
4508 }
4509
4510 err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4511 if (err)
4512 goto out;
4513
4514 sdata->vif.bss_conf.color_change_active = true;
4515 sdata->vif.bss_conf.color_change_color = params->color;
4516
4517 cfg80211_color_change_started_notify(sdata->dev, params->count);
4518
4519 if (changed)
4520 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4521 else
4522 /* if the beacon didn't change, we can finalize immediately */
4523 ieee80211_color_change_finalize(sdata);
4524
4525 out:
4526 mutex_unlock(&local->mtx);
4527
4528 return err;
4529 }
4530
4531 static int
ieee80211_set_radar_background(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)4532 ieee80211_set_radar_background(struct wiphy *wiphy,
4533 struct cfg80211_chan_def *chandef)
4534 {
4535 struct ieee80211_local *local = wiphy_priv(wiphy);
4536
4537 if (!local->ops->set_radar_background)
4538 return -EOPNOTSUPP;
4539
4540 return local->ops->set_radar_background(&local->hw, chandef);
4541 }
4542
4543 const struct cfg80211_ops mac80211_config_ops = {
4544 .add_virtual_intf = ieee80211_add_iface,
4545 .del_virtual_intf = ieee80211_del_iface,
4546 .change_virtual_intf = ieee80211_change_iface,
4547 .start_p2p_device = ieee80211_start_p2p_device,
4548 .stop_p2p_device = ieee80211_stop_p2p_device,
4549 .add_key = ieee80211_add_key,
4550 .del_key = ieee80211_del_key,
4551 .get_key = ieee80211_get_key,
4552 .set_default_key = ieee80211_config_default_key,
4553 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4554 .set_default_beacon_key = ieee80211_config_default_beacon_key,
4555 .start_ap = ieee80211_start_ap,
4556 .change_beacon = ieee80211_change_beacon,
4557 .stop_ap = ieee80211_stop_ap,
4558 .add_station = ieee80211_add_station,
4559 .del_station = ieee80211_del_station,
4560 .change_station = ieee80211_change_station,
4561 .get_station = ieee80211_get_station,
4562 .dump_station = ieee80211_dump_station,
4563 .dump_survey = ieee80211_dump_survey,
4564 #ifdef CONFIG_MAC80211_MESH
4565 .add_mpath = ieee80211_add_mpath,
4566 .del_mpath = ieee80211_del_mpath,
4567 .change_mpath = ieee80211_change_mpath,
4568 .get_mpath = ieee80211_get_mpath,
4569 .dump_mpath = ieee80211_dump_mpath,
4570 .get_mpp = ieee80211_get_mpp,
4571 .dump_mpp = ieee80211_dump_mpp,
4572 .update_mesh_config = ieee80211_update_mesh_config,
4573 .get_mesh_config = ieee80211_get_mesh_config,
4574 .join_mesh = ieee80211_join_mesh,
4575 .leave_mesh = ieee80211_leave_mesh,
4576 #endif
4577 .join_ocb = ieee80211_join_ocb,
4578 .leave_ocb = ieee80211_leave_ocb,
4579 .change_bss = ieee80211_change_bss,
4580 .set_txq_params = ieee80211_set_txq_params,
4581 .set_monitor_channel = ieee80211_set_monitor_channel,
4582 .suspend = ieee80211_suspend,
4583 .resume = ieee80211_resume,
4584 .scan = ieee80211_scan,
4585 .abort_scan = ieee80211_abort_scan,
4586 .sched_scan_start = ieee80211_sched_scan_start,
4587 .sched_scan_stop = ieee80211_sched_scan_stop,
4588 .auth = ieee80211_auth,
4589 .assoc = ieee80211_assoc,
4590 .deauth = ieee80211_deauth,
4591 .disassoc = ieee80211_disassoc,
4592 .join_ibss = ieee80211_join_ibss,
4593 .leave_ibss = ieee80211_leave_ibss,
4594 .set_mcast_rate = ieee80211_set_mcast_rate,
4595 .set_wiphy_params = ieee80211_set_wiphy_params,
4596 .set_tx_power = ieee80211_set_tx_power,
4597 .get_tx_power = ieee80211_get_tx_power,
4598 .rfkill_poll = ieee80211_rfkill_poll,
4599 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4600 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4601 .set_power_mgmt = ieee80211_set_power_mgmt,
4602 .set_bitrate_mask = ieee80211_set_bitrate_mask,
4603 .remain_on_channel = ieee80211_remain_on_channel,
4604 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4605 .mgmt_tx = ieee80211_mgmt_tx,
4606 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4607 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4608 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4609 .update_mgmt_frame_registrations =
4610 ieee80211_update_mgmt_frame_registrations,
4611 .set_antenna = ieee80211_set_antenna,
4612 .get_antenna = ieee80211_get_antenna,
4613 .set_rekey_data = ieee80211_set_rekey_data,
4614 .tdls_oper = ieee80211_tdls_oper,
4615 .tdls_mgmt = ieee80211_tdls_mgmt,
4616 .tdls_channel_switch = ieee80211_tdls_channel_switch,
4617 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4618 .probe_client = ieee80211_probe_client,
4619 .set_noack_map = ieee80211_set_noack_map,
4620 #ifdef CONFIG_PM
4621 .set_wakeup = ieee80211_set_wakeup,
4622 #endif
4623 .get_channel = ieee80211_cfg_get_channel,
4624 .start_radar_detection = ieee80211_start_radar_detection,
4625 .end_cac = ieee80211_end_cac,
4626 .channel_switch = ieee80211_channel_switch,
4627 .set_qos_map = ieee80211_set_qos_map,
4628 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4629 .add_tx_ts = ieee80211_add_tx_ts,
4630 .del_tx_ts = ieee80211_del_tx_ts,
4631 .start_nan = ieee80211_start_nan,
4632 .stop_nan = ieee80211_stop_nan,
4633 .nan_change_conf = ieee80211_nan_change_conf,
4634 .add_nan_func = ieee80211_add_nan_func,
4635 .del_nan_func = ieee80211_del_nan_func,
4636 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4637 .tx_control_port = ieee80211_tx_control_port,
4638 .get_txq_stats = ieee80211_get_txq_stats,
4639 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4640 .start_pmsr = ieee80211_start_pmsr,
4641 .abort_pmsr = ieee80211_abort_pmsr,
4642 .probe_mesh_link = ieee80211_probe_mesh_link,
4643 .set_tid_config = ieee80211_set_tid_config,
4644 .reset_tid_config = ieee80211_reset_tid_config,
4645 .set_sar_specs = ieee80211_set_sar_specs,
4646 .color_change = ieee80211_color_change,
4647 .set_radar_background = ieee80211_set_radar_background,
4648 };
4649