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) 2018-2020 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.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 = rtnl_dereference(local->monitor_sdata);
84
85 if (!monitor_sdata &&
86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
87 return -EOPNOTSUPP;
88
89 /* apply all changes now - no failures allowed */
90
91 if (monitor_sdata)
92 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
93
94 if (params->flags) {
95 if (ieee80211_sdata_running(sdata)) {
96 ieee80211_adjust_monitor_flags(sdata, -1);
97 sdata->u.mntr.flags = params->flags;
98 ieee80211_adjust_monitor_flags(sdata, 1);
99
100 ieee80211_configure_filter(local);
101 } else {
102 /*
103 * Because the interface is down, ieee80211_do_stop
104 * and ieee80211_do_open take care of "everything"
105 * mentioned in the comment above.
106 */
107 sdata->u.mntr.flags = params->flags;
108 }
109 }
110
111 return 0;
112 }
113
ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
115 const char *name,
116 unsigned char name_assign_type,
117 enum nl80211_iftype type,
118 struct vif_params *params)
119 {
120 struct ieee80211_local *local = wiphy_priv(wiphy);
121 struct wireless_dev *wdev;
122 struct ieee80211_sub_if_data *sdata;
123 int err;
124
125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
126 if (err)
127 return ERR_PTR(err);
128
129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
130
131 if (type == NL80211_IFTYPE_MONITOR) {
132 err = ieee80211_set_mon_options(sdata, params);
133 if (err) {
134 ieee80211_if_remove(sdata);
135 return NULL;
136 }
137 }
138
139 return wdev;
140 }
141
ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
143 {
144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
145
146 return 0;
147 }
148
ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)149 static int ieee80211_change_iface(struct wiphy *wiphy,
150 struct net_device *dev,
151 enum nl80211_iftype type,
152 struct vif_params *params)
153 {
154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
155 struct ieee80211_local *local = sdata->local;
156 struct sta_info *sta;
157 int ret;
158
159 ret = ieee80211_if_change_type(sdata, type);
160 if (ret)
161 return ret;
162
163 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
164 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
165 ieee80211_check_fast_rx_iface(sdata);
166 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
167 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
168
169 if (params->use_4addr == ifmgd->use_4addr)
170 return 0;
171
172 sdata->u.mgd.use_4addr = params->use_4addr;
173 if (!ifmgd->associated)
174 return 0;
175
176 mutex_lock(&local->sta_mtx);
177 sta = sta_info_get(sdata, ifmgd->bssid);
178 if (sta)
179 drv_sta_set_4addr(local, sdata, &sta->sta,
180 params->use_4addr);
181 mutex_unlock(&local->sta_mtx);
182
183 if (params->use_4addr)
184 ieee80211_send_4addr_nullfunc(local, sdata);
185 }
186
187 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
188 ret = ieee80211_set_mon_options(sdata, params);
189 if (ret)
190 return ret;
191 }
192
193 return 0;
194 }
195
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)196 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
197 struct wireless_dev *wdev)
198 {
199 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
200 int ret;
201
202 mutex_lock(&sdata->local->chanctx_mtx);
203 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
204 mutex_unlock(&sdata->local->chanctx_mtx);
205 if (ret < 0)
206 return ret;
207
208 return ieee80211_do_open(wdev, true);
209 }
210
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)211 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
212 struct wireless_dev *wdev)
213 {
214 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
215 }
216
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)217 static int ieee80211_start_nan(struct wiphy *wiphy,
218 struct wireless_dev *wdev,
219 struct cfg80211_nan_conf *conf)
220 {
221 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
222 int ret;
223
224 mutex_lock(&sdata->local->chanctx_mtx);
225 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
226 mutex_unlock(&sdata->local->chanctx_mtx);
227 if (ret < 0)
228 return ret;
229
230 ret = ieee80211_do_open(wdev, true);
231 if (ret)
232 return ret;
233
234 ret = drv_start_nan(sdata->local, sdata, conf);
235 if (ret)
236 ieee80211_sdata_stop(sdata);
237
238 sdata->u.nan.conf = *conf;
239
240 return ret;
241 }
242
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)243 static void ieee80211_stop_nan(struct wiphy *wiphy,
244 struct wireless_dev *wdev)
245 {
246 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
247
248 drv_stop_nan(sdata->local, sdata);
249 ieee80211_sdata_stop(sdata);
250 }
251
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)252 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
253 struct wireless_dev *wdev,
254 struct cfg80211_nan_conf *conf,
255 u32 changes)
256 {
257 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
258 struct cfg80211_nan_conf new_conf;
259 int ret = 0;
260
261 if (sdata->vif.type != NL80211_IFTYPE_NAN)
262 return -EOPNOTSUPP;
263
264 if (!ieee80211_sdata_running(sdata))
265 return -ENETDOWN;
266
267 new_conf = sdata->u.nan.conf;
268
269 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
270 new_conf.master_pref = conf->master_pref;
271
272 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
273 new_conf.bands = conf->bands;
274
275 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
276 if (!ret)
277 sdata->u.nan.conf = new_conf;
278
279 return ret;
280 }
281
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)282 static int ieee80211_add_nan_func(struct wiphy *wiphy,
283 struct wireless_dev *wdev,
284 struct cfg80211_nan_func *nan_func)
285 {
286 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
287 int ret;
288
289 if (sdata->vif.type != NL80211_IFTYPE_NAN)
290 return -EOPNOTSUPP;
291
292 if (!ieee80211_sdata_running(sdata))
293 return -ENETDOWN;
294
295 spin_lock_bh(&sdata->u.nan.func_lock);
296
297 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
298 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
299 GFP_ATOMIC);
300 spin_unlock_bh(&sdata->u.nan.func_lock);
301
302 if (ret < 0)
303 return ret;
304
305 nan_func->instance_id = ret;
306
307 WARN_ON(nan_func->instance_id == 0);
308
309 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
310 if (ret) {
311 spin_lock_bh(&sdata->u.nan.func_lock);
312 idr_remove(&sdata->u.nan.function_inst_ids,
313 nan_func->instance_id);
314 spin_unlock_bh(&sdata->u.nan.func_lock);
315 }
316
317 return ret;
318 }
319
320 static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)321 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
322 u64 cookie)
323 {
324 struct cfg80211_nan_func *func;
325 int id;
326
327 lockdep_assert_held(&sdata->u.nan.func_lock);
328
329 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
330 if (func->cookie == cookie)
331 return func;
332 }
333
334 return NULL;
335 }
336
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)337 static void ieee80211_del_nan_func(struct wiphy *wiphy,
338 struct wireless_dev *wdev, u64 cookie)
339 {
340 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
341 struct cfg80211_nan_func *func;
342 u8 instance_id = 0;
343
344 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
345 !ieee80211_sdata_running(sdata))
346 return;
347
348 spin_lock_bh(&sdata->u.nan.func_lock);
349
350 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
351 if (func)
352 instance_id = func->instance_id;
353
354 spin_unlock_bh(&sdata->u.nan.func_lock);
355
356 if (instance_id)
357 drv_del_nan_func(sdata->local, sdata, instance_id);
358 }
359
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)360 static int ieee80211_set_noack_map(struct wiphy *wiphy,
361 struct net_device *dev,
362 u16 noack_map)
363 {
364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
365
366 sdata->noack_map = noack_map;
367
368 ieee80211_check_fast_xmit_iface(sdata);
369
370 return 0;
371 }
372
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)373 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
374 const u8 *mac_addr, u8 key_idx)
375 {
376 struct ieee80211_local *local = sdata->local;
377 struct ieee80211_key *key;
378 struct sta_info *sta;
379 int ret = -EINVAL;
380
381 if (!wiphy_ext_feature_isset(local->hw.wiphy,
382 NL80211_EXT_FEATURE_EXT_KEY_ID))
383 return -EINVAL;
384
385 sta = sta_info_get_bss(sdata, mac_addr);
386
387 if (!sta)
388 return -EINVAL;
389
390 if (sta->ptk_idx == key_idx)
391 return 0;
392
393 mutex_lock(&local->key_mtx);
394 key = key_mtx_dereference(local, sta->ptk[key_idx]);
395
396 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
397 ret = ieee80211_set_tx_key(key);
398
399 mutex_unlock(&local->key_mtx);
400 return ret;
401 }
402
ieee80211_add_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)403 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
404 u8 key_idx, bool pairwise, const u8 *mac_addr,
405 struct key_params *params)
406 {
407 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
408 struct ieee80211_local *local = sdata->local;
409 struct sta_info *sta = NULL;
410 const struct ieee80211_cipher_scheme *cs = NULL;
411 struct ieee80211_key *key;
412 int err;
413
414 if (!ieee80211_sdata_running(sdata))
415 return -ENETDOWN;
416
417 if (pairwise && params->mode == NL80211_KEY_SET_TX)
418 return ieee80211_set_tx(sdata, mac_addr, key_idx);
419
420 /* reject WEP and TKIP keys if WEP failed to initialize */
421 switch (params->cipher) {
422 case WLAN_CIPHER_SUITE_WEP40:
423 case WLAN_CIPHER_SUITE_TKIP:
424 case WLAN_CIPHER_SUITE_WEP104:
425 if (WARN_ON_ONCE(fips_enabled))
426 return -EINVAL;
427 case WLAN_CIPHER_SUITE_CCMP:
428 case WLAN_CIPHER_SUITE_CCMP_256:
429 case WLAN_CIPHER_SUITE_AES_CMAC:
430 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
431 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
432 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
433 case WLAN_CIPHER_SUITE_GCMP:
434 case WLAN_CIPHER_SUITE_GCMP_256:
435 break;
436 default:
437 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
438 break;
439 }
440
441 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
442 params->key, params->seq_len, params->seq,
443 cs);
444 if (IS_ERR(key))
445 return PTR_ERR(key);
446
447 if (pairwise)
448 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
449
450 if (params->mode == NL80211_KEY_NO_TX)
451 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
452
453 mutex_lock(&local->sta_mtx);
454
455 if (mac_addr) {
456 sta = sta_info_get_bss(sdata, mac_addr);
457 /*
458 * The ASSOC test makes sure the driver is ready to
459 * receive the key. When wpa_supplicant has roamed
460 * using FT, it attempts to set the key before
461 * association has completed, this rejects that attempt
462 * so it will set the key again after association.
463 *
464 * TODO: accept the key if we have a station entry and
465 * add it to the device after the station.
466 */
467 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
468 ieee80211_key_free_unused(key);
469 err = -ENOENT;
470 goto out_unlock;
471 }
472 }
473
474 switch (sdata->vif.type) {
475 case NL80211_IFTYPE_STATION:
476 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
477 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
478 break;
479 case NL80211_IFTYPE_AP:
480 case NL80211_IFTYPE_AP_VLAN:
481 /* Keys without a station are used for TX only */
482 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
483 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
484 break;
485 case NL80211_IFTYPE_ADHOC:
486 /* no MFP (yet) */
487 break;
488 case NL80211_IFTYPE_MESH_POINT:
489 #ifdef CONFIG_MAC80211_MESH
490 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
491 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
492 break;
493 #endif
494 case NL80211_IFTYPE_WDS:
495 case NL80211_IFTYPE_MONITOR:
496 case NL80211_IFTYPE_P2P_DEVICE:
497 case NL80211_IFTYPE_NAN:
498 case NL80211_IFTYPE_UNSPECIFIED:
499 case NUM_NL80211_IFTYPES:
500 case NL80211_IFTYPE_P2P_CLIENT:
501 case NL80211_IFTYPE_P2P_GO:
502 case NL80211_IFTYPE_OCB:
503 /* shouldn't happen */
504 WARN_ON_ONCE(1);
505 break;
506 }
507
508 if (sta)
509 sta->cipher_scheme = cs;
510
511 err = ieee80211_key_link(key, sdata, sta);
512
513 out_unlock:
514 mutex_unlock(&local->sta_mtx);
515
516 return err;
517 }
518
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr)519 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
520 u8 key_idx, bool pairwise, const u8 *mac_addr)
521 {
522 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
523 struct ieee80211_local *local = sdata->local;
524 struct sta_info *sta;
525 struct ieee80211_key *key = NULL;
526 int ret;
527
528 mutex_lock(&local->sta_mtx);
529 mutex_lock(&local->key_mtx);
530
531 if (mac_addr) {
532 ret = -ENOENT;
533
534 sta = sta_info_get_bss(sdata, mac_addr);
535 if (!sta)
536 goto out_unlock;
537
538 if (pairwise)
539 key = key_mtx_dereference(local, sta->ptk[key_idx]);
540 else
541 key = key_mtx_dereference(local, sta->gtk[key_idx]);
542 } else
543 key = key_mtx_dereference(local, sdata->keys[key_idx]);
544
545 if (!key) {
546 ret = -ENOENT;
547 goto out_unlock;
548 }
549
550 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
551
552 ret = 0;
553 out_unlock:
554 mutex_unlock(&local->key_mtx);
555 mutex_unlock(&local->sta_mtx);
556
557 return ret;
558 }
559
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))560 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
561 u8 key_idx, bool pairwise, const u8 *mac_addr,
562 void *cookie,
563 void (*callback)(void *cookie,
564 struct key_params *params))
565 {
566 struct ieee80211_sub_if_data *sdata;
567 struct sta_info *sta = NULL;
568 u8 seq[6] = {0};
569 struct key_params params;
570 struct ieee80211_key *key = NULL;
571 u64 pn64;
572 u32 iv32;
573 u16 iv16;
574 int err = -ENOENT;
575 struct ieee80211_key_seq kseq = {};
576
577 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
578
579 rcu_read_lock();
580
581 if (mac_addr) {
582 sta = sta_info_get_bss(sdata, mac_addr);
583 if (!sta)
584 goto out;
585
586 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
587 key = rcu_dereference(sta->ptk[key_idx]);
588 else if (!pairwise &&
589 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
590 NUM_DEFAULT_BEACON_KEYS)
591 key = rcu_dereference(sta->gtk[key_idx]);
592 } else
593 key = rcu_dereference(sdata->keys[key_idx]);
594
595 if (!key)
596 goto out;
597
598 memset(¶ms, 0, sizeof(params));
599
600 params.cipher = key->conf.cipher;
601
602 switch (key->conf.cipher) {
603 case WLAN_CIPHER_SUITE_TKIP:
604 pn64 = atomic64_read(&key->conf.tx_pn);
605 iv32 = TKIP_PN_TO_IV32(pn64);
606 iv16 = TKIP_PN_TO_IV16(pn64);
607
608 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
609 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
610 drv_get_key_seq(sdata->local, key, &kseq);
611 iv32 = kseq.tkip.iv32;
612 iv16 = kseq.tkip.iv16;
613 }
614
615 seq[0] = iv16 & 0xff;
616 seq[1] = (iv16 >> 8) & 0xff;
617 seq[2] = iv32 & 0xff;
618 seq[3] = (iv32 >> 8) & 0xff;
619 seq[4] = (iv32 >> 16) & 0xff;
620 seq[5] = (iv32 >> 24) & 0xff;
621 params.seq = seq;
622 params.seq_len = 6;
623 break;
624 case WLAN_CIPHER_SUITE_CCMP:
625 case WLAN_CIPHER_SUITE_CCMP_256:
626 case WLAN_CIPHER_SUITE_AES_CMAC:
627 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
628 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
629 offsetof(typeof(kseq), aes_cmac));
630 fallthrough;
631 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
632 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
633 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
634 offsetof(typeof(kseq), aes_gmac));
635 fallthrough;
636 case WLAN_CIPHER_SUITE_GCMP:
637 case WLAN_CIPHER_SUITE_GCMP_256:
638 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
639 offsetof(typeof(kseq), gcmp));
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 memcpy(seq, kseq.ccmp.pn, 6);
645 } else {
646 pn64 = atomic64_read(&key->conf.tx_pn);
647 seq[0] = pn64;
648 seq[1] = pn64 >> 8;
649 seq[2] = pn64 >> 16;
650 seq[3] = pn64 >> 24;
651 seq[4] = pn64 >> 32;
652 seq[5] = pn64 >> 40;
653 }
654 params.seq = seq;
655 params.seq_len = 6;
656 break;
657 default:
658 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
659 break;
660 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
661 break;
662 drv_get_key_seq(sdata->local, key, &kseq);
663 params.seq = kseq.hw.seq;
664 params.seq_len = kseq.hw.seq_len;
665 break;
666 }
667
668 params.key = key->conf.key;
669 params.key_len = key->conf.keylen;
670
671 callback(cookie, ¶ms);
672 err = 0;
673
674 out:
675 rcu_read_unlock();
676 return err;
677 }
678
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool uni,bool multi)679 static int ieee80211_config_default_key(struct wiphy *wiphy,
680 struct net_device *dev,
681 u8 key_idx, bool uni,
682 bool multi)
683 {
684 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
685
686 ieee80211_set_default_key(sdata, key_idx, uni, multi);
687
688 return 0;
689 }
690
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)691 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
692 struct net_device *dev,
693 u8 key_idx)
694 {
695 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
696
697 ieee80211_set_default_mgmt_key(sdata, key_idx);
698
699 return 0;
700 }
701
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)702 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
703 struct net_device *dev,
704 u8 key_idx)
705 {
706 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
707
708 ieee80211_set_default_beacon_key(sdata, key_idx);
709
710 return 0;
711 }
712
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)713 void sta_set_rate_info_tx(struct sta_info *sta,
714 const struct ieee80211_tx_rate *rate,
715 struct rate_info *rinfo)
716 {
717 rinfo->flags = 0;
718 if (rate->flags & IEEE80211_TX_RC_MCS) {
719 rinfo->flags |= RATE_INFO_FLAGS_MCS;
720 rinfo->mcs = rate->idx;
721 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
722 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
723 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
724 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
725 } else {
726 struct ieee80211_supported_band *sband;
727 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
728 u16 brate;
729
730 sband = ieee80211_get_sband(sta->sdata);
731 WARN_ON_ONCE(sband && !sband->bitrates);
732 if (sband && sband->bitrates) {
733 brate = sband->bitrates[rate->idx].bitrate;
734 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
735 }
736 }
737 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
738 rinfo->bw = RATE_INFO_BW_40;
739 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
740 rinfo->bw = RATE_INFO_BW_80;
741 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
742 rinfo->bw = RATE_INFO_BW_160;
743 else
744 rinfo->bw = RATE_INFO_BW_20;
745 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
746 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
747 }
748
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)749 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
750 int idx, u8 *mac, struct station_info *sinfo)
751 {
752 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
753 struct ieee80211_local *local = sdata->local;
754 struct sta_info *sta;
755 int ret = -ENOENT;
756
757 mutex_lock(&local->sta_mtx);
758
759 sta = sta_info_get_by_idx(sdata, idx);
760 if (sta) {
761 ret = 0;
762 memcpy(mac, sta->sta.addr, ETH_ALEN);
763 sta_set_sinfo(sta, sinfo, true);
764 }
765
766 mutex_unlock(&local->sta_mtx);
767
768 return ret;
769 }
770
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)771 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
772 int idx, struct survey_info *survey)
773 {
774 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
775
776 return drv_get_survey(local, idx, survey);
777 }
778
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)779 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
780 const u8 *mac, struct station_info *sinfo)
781 {
782 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
783 struct ieee80211_local *local = sdata->local;
784 struct sta_info *sta;
785 int ret = -ENOENT;
786
787 mutex_lock(&local->sta_mtx);
788
789 sta = sta_info_get_bss(sdata, mac);
790 if (sta) {
791 ret = 0;
792 sta_set_sinfo(sta, sinfo, true);
793 }
794
795 mutex_unlock(&local->sta_mtx);
796
797 return ret;
798 }
799
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)800 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
801 struct cfg80211_chan_def *chandef)
802 {
803 struct ieee80211_local *local = wiphy_priv(wiphy);
804 struct ieee80211_sub_if_data *sdata;
805 int ret = 0;
806
807 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
808 return 0;
809
810 mutex_lock(&local->mtx);
811 if (local->use_chanctx) {
812 sdata = rtnl_dereference(local->monitor_sdata);
813 if (sdata) {
814 ieee80211_vif_release_channel(sdata);
815 ret = ieee80211_vif_use_channel(sdata, chandef,
816 IEEE80211_CHANCTX_EXCLUSIVE);
817 }
818 } else if (local->open_count == local->monitors) {
819 local->_oper_chandef = *chandef;
820 ieee80211_hw_config(local, 0);
821 }
822
823 if (ret == 0)
824 local->monitor_chandef = *chandef;
825 mutex_unlock(&local->mtx);
826
827 return ret;
828 }
829
ieee80211_set_probe_resp(struct ieee80211_sub_if_data * sdata,const u8 * resp,size_t resp_len,const struct ieee80211_csa_settings * csa)830 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
831 const u8 *resp, size_t resp_len,
832 const struct ieee80211_csa_settings *csa)
833 {
834 struct probe_resp *new, *old;
835
836 if (!resp || !resp_len)
837 return 1;
838
839 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
840
841 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
842 if (!new)
843 return -ENOMEM;
844
845 new->len = resp_len;
846 memcpy(new->data, resp, resp_len);
847
848 if (csa)
849 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
850 csa->n_counter_offsets_presp *
851 sizeof(new->cntdwn_counter_offsets[0]));
852
853 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
854 if (old)
855 kfree_rcu(old, rcu_head);
856
857 return 0;
858 }
859
ieee80211_set_fils_discovery(struct ieee80211_sub_if_data * sdata,struct cfg80211_fils_discovery * params)860 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
861 struct cfg80211_fils_discovery *params)
862 {
863 struct fils_discovery_data *new, *old = NULL;
864 struct ieee80211_fils_discovery *fd;
865
866 if (!params->tmpl || !params->tmpl_len)
867 return -EINVAL;
868
869 fd = &sdata->vif.bss_conf.fils_discovery;
870 fd->min_interval = params->min_interval;
871 fd->max_interval = params->max_interval;
872
873 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
874 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
875 if (!new)
876 return -ENOMEM;
877 new->len = params->tmpl_len;
878 memcpy(new->data, params->tmpl, params->tmpl_len);
879 rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
880
881 if (old)
882 kfree_rcu(old, rcu_head);
883
884 return 0;
885 }
886
887 static int
ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data * sdata,struct cfg80211_unsol_bcast_probe_resp * params)888 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
889 struct cfg80211_unsol_bcast_probe_resp *params)
890 {
891 struct unsol_bcast_probe_resp_data *new, *old = NULL;
892
893 if (!params->tmpl || !params->tmpl_len)
894 return -EINVAL;
895
896 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
897 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
898 if (!new)
899 return -ENOMEM;
900 new->len = params->tmpl_len;
901 memcpy(new->data, params->tmpl, params->tmpl_len);
902 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
903
904 if (old)
905 kfree_rcu(old, rcu_head);
906
907 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
908 params->interval;
909
910 return 0;
911 }
912
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)913 static int ieee80211_set_ftm_responder_params(
914 struct ieee80211_sub_if_data *sdata,
915 const u8 *lci, size_t lci_len,
916 const u8 *civicloc, size_t civicloc_len)
917 {
918 struct ieee80211_ftm_responder_params *new, *old;
919 struct ieee80211_bss_conf *bss_conf;
920 u8 *pos;
921 int len;
922
923 if (!lci_len && !civicloc_len)
924 return 0;
925
926 bss_conf = &sdata->vif.bss_conf;
927 old = bss_conf->ftmr_params;
928 len = lci_len + civicloc_len;
929
930 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
931 if (!new)
932 return -ENOMEM;
933
934 pos = (u8 *)(new + 1);
935 if (lci_len) {
936 new->lci_len = lci_len;
937 new->lci = pos;
938 memcpy(pos, lci, lci_len);
939 pos += lci_len;
940 }
941
942 if (civicloc_len) {
943 new->civicloc_len = civicloc_len;
944 new->civicloc = pos;
945 memcpy(pos, civicloc, civicloc_len);
946 pos += civicloc_len;
947 }
948
949 bss_conf->ftmr_params = new;
950 kfree(old);
951
952 return 0;
953 }
954
ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa)955 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
956 struct cfg80211_beacon_data *params,
957 const struct ieee80211_csa_settings *csa)
958 {
959 struct beacon_data *new, *old;
960 int new_head_len, new_tail_len;
961 int size, err;
962 u32 changed = BSS_CHANGED_BEACON;
963
964 old = sdata_dereference(sdata->u.ap.beacon, sdata);
965
966
967 /* Need to have a beacon head if we don't have one yet */
968 if (!params->head && !old)
969 return -EINVAL;
970
971 /* new or old head? */
972 if (params->head)
973 new_head_len = params->head_len;
974 else
975 new_head_len = old->head_len;
976
977 /* new or old tail? */
978 if (params->tail || !old)
979 /* params->tail_len will be zero for !params->tail */
980 new_tail_len = params->tail_len;
981 else
982 new_tail_len = old->tail_len;
983
984 size = sizeof(*new) + new_head_len + new_tail_len;
985
986 new = kzalloc(size, GFP_KERNEL);
987 if (!new)
988 return -ENOMEM;
989
990 /* start filling the new info now */
991
992 /*
993 * pointers go into the block we allocated,
994 * memory is | beacon_data | head | tail |
995 */
996 new->head = ((u8 *) new) + sizeof(*new);
997 new->tail = new->head + new_head_len;
998 new->head_len = new_head_len;
999 new->tail_len = new_tail_len;
1000
1001 if (csa) {
1002 new->cntdwn_current_counter = csa->count;
1003 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1004 csa->n_counter_offsets_beacon *
1005 sizeof(new->cntdwn_counter_offsets[0]));
1006 }
1007
1008 /* copy in head */
1009 if (params->head)
1010 memcpy(new->head, params->head, new_head_len);
1011 else
1012 memcpy(new->head, old->head, new_head_len);
1013
1014 /* copy in optional tail */
1015 if (params->tail)
1016 memcpy(new->tail, params->tail, new_tail_len);
1017 else
1018 if (old)
1019 memcpy(new->tail, old->tail, new_tail_len);
1020
1021 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1022 params->probe_resp_len, csa);
1023 if (err < 0) {
1024 kfree(new);
1025 return err;
1026 }
1027 if (err == 0)
1028 changed |= BSS_CHANGED_AP_PROBE_RESP;
1029
1030 if (params->ftm_responder != -1) {
1031 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1032 err = ieee80211_set_ftm_responder_params(sdata,
1033 params->lci,
1034 params->lci_len,
1035 params->civicloc,
1036 params->civicloc_len);
1037
1038 if (err < 0) {
1039 kfree(new);
1040 return err;
1041 }
1042
1043 changed |= BSS_CHANGED_FTM_RESPONDER;
1044 }
1045
1046 rcu_assign_pointer(sdata->u.ap.beacon, new);
1047
1048 if (old)
1049 kfree_rcu(old, rcu_head);
1050
1051 return changed;
1052 }
1053
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1054 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1055 struct cfg80211_ap_settings *params)
1056 {
1057 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1058 struct ieee80211_local *local = sdata->local;
1059 struct beacon_data *old;
1060 struct ieee80211_sub_if_data *vlan;
1061 u32 changed = BSS_CHANGED_BEACON_INT |
1062 BSS_CHANGED_BEACON_ENABLED |
1063 BSS_CHANGED_BEACON |
1064 BSS_CHANGED_SSID |
1065 BSS_CHANGED_P2P_PS |
1066 BSS_CHANGED_TXPOWER |
1067 BSS_CHANGED_TWT;
1068 int i, err;
1069 int prev_beacon_int;
1070
1071 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1072 if (old)
1073 return -EALREADY;
1074
1075 if (params->smps_mode != NL80211_SMPS_OFF)
1076 return -ENOTSUPP;
1077
1078 sdata->smps_mode = IEEE80211_SMPS_OFF;
1079
1080 sdata->needed_rx_chains = sdata->local->rx_chains;
1081
1082 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1083 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1084
1085 if (params->he_cap && params->he_oper) {
1086 sdata->vif.bss_conf.he_support = true;
1087 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1088 le32_get_bits(params->he_oper->he_oper_params,
1089 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1090 sdata->vif.bss_conf.frame_time_rts_th =
1091 le32_get_bits(params->he_oper->he_oper_params,
1092 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1093 changed |= BSS_CHANGED_HE_OBSS_PD;
1094
1095 if (params->he_bss_color.enabled)
1096 changed |= BSS_CHANGED_HE_BSS_COLOR;
1097 }
1098
1099 mutex_lock(&local->mtx);
1100 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
1101 IEEE80211_CHANCTX_SHARED);
1102 if (!err)
1103 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1104 mutex_unlock(&local->mtx);
1105 if (err) {
1106 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1107 return err;
1108 }
1109
1110 /*
1111 * Apply control port protocol, this allows us to
1112 * not encrypt dynamic WEP control frames.
1113 */
1114 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1115 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1116 sdata->control_port_over_nl80211 =
1117 params->crypto.control_port_over_nl80211;
1118 sdata->control_port_no_preauth =
1119 params->crypto.control_port_no_preauth;
1120 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1121 ¶ms->crypto,
1122 sdata->vif.type);
1123
1124 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1125 vlan->control_port_protocol =
1126 params->crypto.control_port_ethertype;
1127 vlan->control_port_no_encrypt =
1128 params->crypto.control_port_no_encrypt;
1129 vlan->control_port_over_nl80211 =
1130 params->crypto.control_port_over_nl80211;
1131 vlan->control_port_no_preauth =
1132 params->crypto.control_port_no_preauth;
1133 vlan->encrypt_headroom =
1134 ieee80211_cs_headroom(sdata->local,
1135 ¶ms->crypto,
1136 vlan->vif.type);
1137 }
1138
1139 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1140 sdata->vif.bss_conf.enable_beacon = true;
1141 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1142 sdata->vif.bss_conf.twt_responder = params->twt_responder;
1143 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd,
1144 sizeof(struct ieee80211_he_obss_pd));
1145 memcpy(&sdata->vif.bss_conf.he_bss_color, ¶ms->he_bss_color,
1146 sizeof(struct ieee80211_he_bss_color));
1147 sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1148 NL80211_BAND_S1GHZ;
1149
1150 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1151 if (params->ssid_len)
1152 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1153 params->ssid_len);
1154 sdata->vif.bss_conf.hidden_ssid =
1155 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1156
1157 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1158 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1159 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1160 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1161 if (params->p2p_opp_ps)
1162 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1163 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1164
1165 sdata->beacon_rate_set = false;
1166 if (wiphy_ext_feature_isset(local->hw.wiphy,
1167 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1168 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1169 sdata->beacon_rateidx_mask[i] =
1170 params->beacon_rate.control[i].legacy;
1171 if (sdata->beacon_rateidx_mask[i])
1172 sdata->beacon_rate_set = true;
1173 }
1174 }
1175
1176 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1177 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1178
1179 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL);
1180 if (err < 0)
1181 goto error;
1182 changed |= err;
1183
1184 if (params->fils_discovery.max_interval) {
1185 err = ieee80211_set_fils_discovery(sdata,
1186 ¶ms->fils_discovery);
1187 if (err < 0)
1188 goto error;
1189 changed |= BSS_CHANGED_FILS_DISCOVERY;
1190 }
1191
1192 if (params->unsol_bcast_probe_resp.interval) {
1193 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1194 ¶ms->unsol_bcast_probe_resp);
1195 if (err < 0)
1196 goto error;
1197 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1198 }
1199
1200 err = drv_start_ap(sdata->local, sdata);
1201 if (err) {
1202 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1203
1204 if (old)
1205 kfree_rcu(old, rcu_head);
1206 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1207 goto error;
1208 }
1209
1210 ieee80211_recalc_dtim(local, sdata);
1211 ieee80211_bss_info_change_notify(sdata, changed);
1212
1213 netif_carrier_on(dev);
1214 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1215 netif_carrier_on(vlan->dev);
1216
1217 return 0;
1218
1219 error:
1220 mutex_lock(&local->mtx);
1221 ieee80211_vif_release_channel(sdata);
1222 mutex_unlock(&local->mtx);
1223
1224 return err;
1225 }
1226
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * params)1227 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1228 struct cfg80211_beacon_data *params)
1229 {
1230 struct ieee80211_sub_if_data *sdata;
1231 struct beacon_data *old;
1232 int err;
1233
1234 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1235 sdata_assert_lock(sdata);
1236
1237 /* don't allow changing the beacon while CSA is in place - offset
1238 * of channel switch counter may change
1239 */
1240 if (sdata->vif.csa_active)
1241 return -EBUSY;
1242
1243 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1244 if (!old)
1245 return -ENOENT;
1246
1247 err = ieee80211_assign_beacon(sdata, params, NULL);
1248 if (err < 0)
1249 return err;
1250 ieee80211_bss_info_change_notify(sdata, err);
1251 return 0;
1252 }
1253
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev)1254 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1255 {
1256 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1257 struct ieee80211_sub_if_data *vlan;
1258 struct ieee80211_local *local = sdata->local;
1259 struct beacon_data *old_beacon;
1260 struct probe_resp *old_probe_resp;
1261 struct fils_discovery_data *old_fils_discovery;
1262 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1263 struct cfg80211_chan_def chandef;
1264
1265 sdata_assert_lock(sdata);
1266
1267 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1268 if (!old_beacon)
1269 return -ENOENT;
1270 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1271 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1272 sdata);
1273 old_unsol_bcast_probe_resp =
1274 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1275 sdata);
1276
1277 /* abort any running channel switch */
1278 mutex_lock(&local->mtx);
1279 sdata->vif.csa_active = false;
1280 if (sdata->csa_block_tx) {
1281 ieee80211_wake_vif_queues(local, sdata,
1282 IEEE80211_QUEUE_STOP_REASON_CSA);
1283 sdata->csa_block_tx = false;
1284 }
1285
1286 mutex_unlock(&local->mtx);
1287
1288 kfree(sdata->u.ap.next_beacon);
1289 sdata->u.ap.next_beacon = NULL;
1290
1291 /* turn off carrier for this interface and dependent VLANs */
1292 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1293 netif_carrier_off(vlan->dev);
1294 netif_carrier_off(dev);
1295
1296 /* remove beacon and probe response */
1297 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1298 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1299 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1300 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1301 kfree_rcu(old_beacon, rcu_head);
1302 if (old_probe_resp)
1303 kfree_rcu(old_probe_resp, rcu_head);
1304 if (old_fils_discovery)
1305 kfree_rcu(old_fils_discovery, rcu_head);
1306 if (old_unsol_bcast_probe_resp)
1307 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1308
1309 kfree(sdata->vif.bss_conf.ftmr_params);
1310 sdata->vif.bss_conf.ftmr_params = NULL;
1311
1312 __sta_info_flush(sdata, true);
1313 ieee80211_free_keys(sdata, true);
1314
1315 sdata->vif.bss_conf.enable_beacon = false;
1316 sdata->beacon_rate_set = false;
1317 sdata->vif.bss_conf.ssid_len = 0;
1318 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1319 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1320
1321 if (sdata->wdev.cac_started) {
1322 chandef = sdata->vif.bss_conf.chandef;
1323 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1324 cfg80211_cac_event(sdata->dev, &chandef,
1325 NL80211_RADAR_CAC_ABORTED,
1326 GFP_KERNEL);
1327 }
1328
1329 drv_stop_ap(sdata->local, sdata);
1330
1331 /* free all potentially still buffered bcast frames */
1332 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1333 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1334
1335 mutex_lock(&local->mtx);
1336 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1337 ieee80211_vif_release_channel(sdata);
1338 mutex_unlock(&local->mtx);
1339
1340 return 0;
1341 }
1342
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1343 static int sta_apply_auth_flags(struct ieee80211_local *local,
1344 struct sta_info *sta,
1345 u32 mask, u32 set)
1346 {
1347 int ret;
1348
1349 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1350 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1351 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1352 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1353 if (ret)
1354 return ret;
1355 }
1356
1357 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1358 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1359 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1360 /*
1361 * When peer becomes associated, init rate control as
1362 * well. Some drivers require rate control initialized
1363 * before drv_sta_state() is called.
1364 */
1365 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1366 rate_control_rate_init(sta);
1367
1368 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1369 if (ret)
1370 return ret;
1371 }
1372
1373 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1374 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1375 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1376 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1377 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1378 else
1379 ret = 0;
1380 if (ret)
1381 return ret;
1382 }
1383
1384 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1385 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1386 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1387 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1388 if (ret)
1389 return ret;
1390 }
1391
1392 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1393 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1394 test_sta_flag(sta, WLAN_STA_AUTH)) {
1395 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1396 if (ret)
1397 return ret;
1398 }
1399
1400 return 0;
1401 }
1402
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1403 static void sta_apply_mesh_params(struct ieee80211_local *local,
1404 struct sta_info *sta,
1405 struct station_parameters *params)
1406 {
1407 #ifdef CONFIG_MAC80211_MESH
1408 struct ieee80211_sub_if_data *sdata = sta->sdata;
1409 u32 changed = 0;
1410
1411 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1412 switch (params->plink_state) {
1413 case NL80211_PLINK_ESTAB:
1414 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1415 changed = mesh_plink_inc_estab_count(sdata);
1416 sta->mesh->plink_state = params->plink_state;
1417 sta->mesh->aid = params->peer_aid;
1418
1419 ieee80211_mps_sta_status_update(sta);
1420 changed |= ieee80211_mps_set_sta_local_pm(sta,
1421 sdata->u.mesh.mshcfg.power_mode);
1422
1423 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1424 /* init at low value */
1425 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1426
1427 break;
1428 case NL80211_PLINK_LISTEN:
1429 case NL80211_PLINK_BLOCKED:
1430 case NL80211_PLINK_OPN_SNT:
1431 case NL80211_PLINK_OPN_RCVD:
1432 case NL80211_PLINK_CNF_RCVD:
1433 case NL80211_PLINK_HOLDING:
1434 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1435 changed = mesh_plink_dec_estab_count(sdata);
1436 sta->mesh->plink_state = params->plink_state;
1437
1438 ieee80211_mps_sta_status_update(sta);
1439 changed |= ieee80211_mps_set_sta_local_pm(sta,
1440 NL80211_MESH_POWER_UNKNOWN);
1441 break;
1442 default:
1443 /* nothing */
1444 break;
1445 }
1446 }
1447
1448 switch (params->plink_action) {
1449 case NL80211_PLINK_ACTION_NO_ACTION:
1450 /* nothing */
1451 break;
1452 case NL80211_PLINK_ACTION_OPEN:
1453 changed |= mesh_plink_open(sta);
1454 break;
1455 case NL80211_PLINK_ACTION_BLOCK:
1456 changed |= mesh_plink_block(sta);
1457 break;
1458 }
1459
1460 if (params->local_pm)
1461 changed |= ieee80211_mps_set_sta_local_pm(sta,
1462 params->local_pm);
1463
1464 ieee80211_mbss_info_change_notify(sdata, changed);
1465 #endif
1466 }
1467
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1468 static int sta_apply_parameters(struct ieee80211_local *local,
1469 struct sta_info *sta,
1470 struct station_parameters *params)
1471 {
1472 int ret = 0;
1473 struct ieee80211_supported_band *sband;
1474 struct ieee80211_sub_if_data *sdata = sta->sdata;
1475 u32 mask, set;
1476
1477 sband = ieee80211_get_sband(sdata);
1478 if (!sband)
1479 return -EINVAL;
1480
1481 mask = params->sta_flags_mask;
1482 set = params->sta_flags_set;
1483
1484 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1485 /*
1486 * In mesh mode, ASSOCIATED isn't part of the nl80211
1487 * API but must follow AUTHENTICATED for driver state.
1488 */
1489 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1490 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1491 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1492 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1493 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1494 /*
1495 * TDLS -- everything follows authorized, but
1496 * only becoming authorized is possible, not
1497 * going back
1498 */
1499 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1500 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1501 BIT(NL80211_STA_FLAG_ASSOCIATED);
1502 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1503 BIT(NL80211_STA_FLAG_ASSOCIATED);
1504 }
1505 }
1506
1507 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1508 local->hw.queues >= IEEE80211_NUM_ACS)
1509 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1510
1511 /* auth flags will be set later for TDLS,
1512 * and for unassociated stations that move to assocaited */
1513 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1514 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1515 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1516 ret = sta_apply_auth_flags(local, sta, mask, set);
1517 if (ret)
1518 return ret;
1519 }
1520
1521 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1522 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1523 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1524 else
1525 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1526 }
1527
1528 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1529 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1530 if (set & BIT(NL80211_STA_FLAG_MFP))
1531 set_sta_flag(sta, WLAN_STA_MFP);
1532 else
1533 clear_sta_flag(sta, WLAN_STA_MFP);
1534 }
1535
1536 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1537 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1538 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1539 else
1540 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1541 }
1542
1543 /* mark TDLS channel switch support, if the AP allows it */
1544 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1545 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1546 params->ext_capab_len >= 4 &&
1547 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1548 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1549
1550 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1551 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1552 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1553 params->ext_capab_len >= 8 &&
1554 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1555 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1556
1557 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1558 sta->sta.uapsd_queues = params->uapsd_queues;
1559 sta->sta.max_sp = params->max_sp;
1560 }
1561
1562 /* The sender might not have sent the last bit, consider it to be 0 */
1563 if (params->ext_capab_len >= 8) {
1564 u8 val = (params->ext_capab[7] &
1565 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1566
1567 /* we did get all the bits, take the MSB as well */
1568 if (params->ext_capab_len >= 9) {
1569 u8 val_msb = params->ext_capab[8] &
1570 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1571 val_msb <<= 1;
1572 val |= val_msb;
1573 }
1574
1575 switch (val) {
1576 case 1:
1577 sta->sta.max_amsdu_subframes = 32;
1578 break;
1579 case 2:
1580 sta->sta.max_amsdu_subframes = 16;
1581 break;
1582 case 3:
1583 sta->sta.max_amsdu_subframes = 8;
1584 break;
1585 default:
1586 sta->sta.max_amsdu_subframes = 0;
1587 }
1588 }
1589
1590 /*
1591 * cfg80211 validates this (1-2007) and allows setting the AID
1592 * only when creating a new station entry
1593 */
1594 if (params->aid)
1595 sta->sta.aid = params->aid;
1596
1597 /*
1598 * Some of the following updates would be racy if called on an
1599 * existing station, via ieee80211_change_station(). However,
1600 * all such changes are rejected by cfg80211 except for updates
1601 * changing the supported rates on an existing but not yet used
1602 * TDLS peer.
1603 */
1604
1605 if (params->listen_interval >= 0)
1606 sta->listen_interval = params->listen_interval;
1607
1608 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1609 sta->sta.txpwr.type = params->txpwr.type;
1610 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1611 sta->sta.txpwr.power = params->txpwr.power;
1612 ret = drv_sta_set_txpwr(local, sdata, sta);
1613 if (ret)
1614 return ret;
1615 }
1616
1617 if (params->supported_rates && params->supported_rates_len) {
1618 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1619 sband, params->supported_rates,
1620 params->supported_rates_len,
1621 &sta->sta.supp_rates[sband->band]);
1622 }
1623
1624 if (params->ht_capa)
1625 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1626 params->ht_capa, sta);
1627
1628 /* VHT can override some HT caps such as the A-MSDU max length */
1629 if (params->vht_capa)
1630 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1631 params->vht_capa, sta);
1632
1633 if (params->he_capa)
1634 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1635 (void *)params->he_capa,
1636 params->he_capa_len,
1637 (void *)params->he_6ghz_capa,
1638 sta);
1639
1640 if (params->opmode_notif_used) {
1641 /* returned value is only needed for rc update, but the
1642 * rc isn't initialized here yet, so ignore it
1643 */
1644 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1645 sband->band);
1646 }
1647
1648 if (params->support_p2p_ps >= 0)
1649 sta->sta.support_p2p_ps = params->support_p2p_ps;
1650
1651 if (ieee80211_vif_is_mesh(&sdata->vif))
1652 sta_apply_mesh_params(local, sta, params);
1653
1654 if (params->airtime_weight)
1655 sta->airtime_weight = params->airtime_weight;
1656
1657 /* set the STA state after all sta info from usermode has been set */
1658 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1659 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1660 ret = sta_apply_auth_flags(local, sta, mask, set);
1661 if (ret)
1662 return ret;
1663 }
1664
1665 return 0;
1666 }
1667
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1668 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1669 const u8 *mac,
1670 struct station_parameters *params)
1671 {
1672 struct ieee80211_local *local = wiphy_priv(wiphy);
1673 struct sta_info *sta;
1674 struct ieee80211_sub_if_data *sdata;
1675 int err;
1676
1677 if (params->vlan) {
1678 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1679
1680 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1681 sdata->vif.type != NL80211_IFTYPE_AP)
1682 return -EINVAL;
1683 } else
1684 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1685
1686 if (ether_addr_equal(mac, sdata->vif.addr))
1687 return -EINVAL;
1688
1689 if (!is_valid_ether_addr(mac))
1690 return -EINVAL;
1691
1692 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1693 sdata->vif.type == NL80211_IFTYPE_STATION &&
1694 !sdata->u.mgd.associated)
1695 return -EINVAL;
1696
1697 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1698 if (!sta)
1699 return -ENOMEM;
1700
1701 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1702 sta->sta.tdls = true;
1703
1704 err = sta_apply_parameters(local, sta, params);
1705 if (err) {
1706 sta_info_free(local, sta);
1707 return err;
1708 }
1709
1710 /*
1711 * for TDLS and for unassociated station, rate control should be
1712 * initialized only when rates are known and station is marked
1713 * authorized/associated
1714 */
1715 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1716 test_sta_flag(sta, WLAN_STA_ASSOC))
1717 rate_control_rate_init(sta);
1718
1719 err = sta_info_insert_rcu(sta);
1720 if (err) {
1721 rcu_read_unlock();
1722 return err;
1723 }
1724
1725 rcu_read_unlock();
1726
1727 return 0;
1728 }
1729
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1730 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1731 struct station_del_parameters *params)
1732 {
1733 struct ieee80211_sub_if_data *sdata;
1734
1735 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1736
1737 if (params->mac)
1738 return sta_info_destroy_addr_bss(sdata, params->mac);
1739
1740 sta_info_flush(sdata);
1741 return 0;
1742 }
1743
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1744 static int ieee80211_change_station(struct wiphy *wiphy,
1745 struct net_device *dev, const u8 *mac,
1746 struct station_parameters *params)
1747 {
1748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1749 struct ieee80211_local *local = wiphy_priv(wiphy);
1750 struct sta_info *sta;
1751 struct ieee80211_sub_if_data *vlansdata;
1752 enum cfg80211_station_type statype;
1753 int err;
1754
1755 mutex_lock(&local->sta_mtx);
1756
1757 sta = sta_info_get_bss(sdata, mac);
1758 if (!sta) {
1759 err = -ENOENT;
1760 goto out_err;
1761 }
1762
1763 switch (sdata->vif.type) {
1764 case NL80211_IFTYPE_MESH_POINT:
1765 if (sdata->u.mesh.user_mpm)
1766 statype = CFG80211_STA_MESH_PEER_USER;
1767 else
1768 statype = CFG80211_STA_MESH_PEER_KERNEL;
1769 break;
1770 case NL80211_IFTYPE_ADHOC:
1771 statype = CFG80211_STA_IBSS;
1772 break;
1773 case NL80211_IFTYPE_STATION:
1774 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1775 statype = CFG80211_STA_AP_STA;
1776 break;
1777 }
1778 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1779 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1780 else
1781 statype = CFG80211_STA_TDLS_PEER_SETUP;
1782 break;
1783 case NL80211_IFTYPE_AP:
1784 case NL80211_IFTYPE_AP_VLAN:
1785 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1786 statype = CFG80211_STA_AP_CLIENT;
1787 else
1788 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1789 break;
1790 default:
1791 err = -EOPNOTSUPP;
1792 goto out_err;
1793 }
1794
1795 err = cfg80211_check_station_change(wiphy, params, statype);
1796 if (err)
1797 goto out_err;
1798
1799 if (params->vlan && params->vlan != sta->sdata->dev) {
1800 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1801
1802 if (params->vlan->ieee80211_ptr->use_4addr) {
1803 if (vlansdata->u.vlan.sta) {
1804 err = -EBUSY;
1805 goto out_err;
1806 }
1807
1808 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1809 __ieee80211_check_fast_rx_iface(vlansdata);
1810 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1811 }
1812
1813 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1814 sta->sdata->u.vlan.sta) {
1815 ieee80211_clear_fast_rx(sta);
1816 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1817 }
1818
1819 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1820 ieee80211_vif_dec_num_mcast(sta->sdata);
1821
1822 sta->sdata = vlansdata;
1823 ieee80211_check_fast_xmit(sta);
1824
1825 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1826 ieee80211_vif_inc_num_mcast(sta->sdata);
1827 cfg80211_send_layer2_update(sta->sdata->dev,
1828 sta->sta.addr);
1829 }
1830 }
1831
1832 err = sta_apply_parameters(local, sta, params);
1833 if (err)
1834 goto out_err;
1835
1836 mutex_unlock(&local->sta_mtx);
1837
1838 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1839 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1840 ieee80211_recalc_ps(local);
1841 ieee80211_recalc_ps_vif(sdata);
1842 }
1843
1844 return 0;
1845 out_err:
1846 mutex_unlock(&local->sta_mtx);
1847 return err;
1848 }
1849
1850 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1851 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1852 const u8 *dst, const u8 *next_hop)
1853 {
1854 struct ieee80211_sub_if_data *sdata;
1855 struct mesh_path *mpath;
1856 struct sta_info *sta;
1857
1858 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1859
1860 rcu_read_lock();
1861 sta = sta_info_get(sdata, next_hop);
1862 if (!sta) {
1863 rcu_read_unlock();
1864 return -ENOENT;
1865 }
1866
1867 mpath = mesh_path_add(sdata, dst);
1868 if (IS_ERR(mpath)) {
1869 rcu_read_unlock();
1870 return PTR_ERR(mpath);
1871 }
1872
1873 mesh_path_fix_nexthop(mpath, sta);
1874
1875 rcu_read_unlock();
1876 return 0;
1877 }
1878
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)1879 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1880 const u8 *dst)
1881 {
1882 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1883
1884 if (dst)
1885 return mesh_path_del(sdata, dst);
1886
1887 mesh_path_flush_by_iface(sdata);
1888 return 0;
1889 }
1890
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1891 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1892 const u8 *dst, const u8 *next_hop)
1893 {
1894 struct ieee80211_sub_if_data *sdata;
1895 struct mesh_path *mpath;
1896 struct sta_info *sta;
1897
1898 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1899
1900 rcu_read_lock();
1901
1902 sta = sta_info_get(sdata, next_hop);
1903 if (!sta) {
1904 rcu_read_unlock();
1905 return -ENOENT;
1906 }
1907
1908 mpath = mesh_path_lookup(sdata, dst);
1909 if (!mpath) {
1910 rcu_read_unlock();
1911 return -ENOENT;
1912 }
1913
1914 mesh_path_fix_nexthop(mpath, sta);
1915
1916 rcu_read_unlock();
1917 return 0;
1918 }
1919
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)1920 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1921 struct mpath_info *pinfo)
1922 {
1923 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1924
1925 if (next_hop_sta)
1926 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1927 else
1928 eth_zero_addr(next_hop);
1929
1930 memset(pinfo, 0, sizeof(*pinfo));
1931
1932 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1933
1934 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1935 MPATH_INFO_SN |
1936 MPATH_INFO_METRIC |
1937 MPATH_INFO_EXPTIME |
1938 MPATH_INFO_DISCOVERY_TIMEOUT |
1939 MPATH_INFO_DISCOVERY_RETRIES |
1940 MPATH_INFO_FLAGS |
1941 MPATH_INFO_HOP_COUNT |
1942 MPATH_INFO_PATH_CHANGE;
1943
1944 pinfo->frame_qlen = mpath->frame_queue.qlen;
1945 pinfo->sn = mpath->sn;
1946 pinfo->metric = mpath->metric;
1947 if (time_before(jiffies, mpath->exp_time))
1948 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1949 pinfo->discovery_timeout =
1950 jiffies_to_msecs(mpath->discovery_timeout);
1951 pinfo->discovery_retries = mpath->discovery_retries;
1952 if (mpath->flags & MESH_PATH_ACTIVE)
1953 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1954 if (mpath->flags & MESH_PATH_RESOLVING)
1955 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1956 if (mpath->flags & MESH_PATH_SN_VALID)
1957 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1958 if (mpath->flags & MESH_PATH_FIXED)
1959 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1960 if (mpath->flags & MESH_PATH_RESOLVED)
1961 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1962 pinfo->hop_count = mpath->hop_count;
1963 pinfo->path_change_count = mpath->path_change_count;
1964 }
1965
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1966 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1967 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1968
1969 {
1970 struct ieee80211_sub_if_data *sdata;
1971 struct mesh_path *mpath;
1972
1973 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1974
1975 rcu_read_lock();
1976 mpath = mesh_path_lookup(sdata, dst);
1977 if (!mpath) {
1978 rcu_read_unlock();
1979 return -ENOENT;
1980 }
1981 memcpy(dst, mpath->dst, ETH_ALEN);
1982 mpath_set_pinfo(mpath, next_hop, pinfo);
1983 rcu_read_unlock();
1984 return 0;
1985 }
1986
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1987 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1988 int idx, u8 *dst, u8 *next_hop,
1989 struct mpath_info *pinfo)
1990 {
1991 struct ieee80211_sub_if_data *sdata;
1992 struct mesh_path *mpath;
1993
1994 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1995
1996 rcu_read_lock();
1997 mpath = mesh_path_lookup_by_idx(sdata, idx);
1998 if (!mpath) {
1999 rcu_read_unlock();
2000 return -ENOENT;
2001 }
2002 memcpy(dst, mpath->dst, ETH_ALEN);
2003 mpath_set_pinfo(mpath, next_hop, pinfo);
2004 rcu_read_unlock();
2005 return 0;
2006 }
2007
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2008 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2009 struct mpath_info *pinfo)
2010 {
2011 memset(pinfo, 0, sizeof(*pinfo));
2012 memcpy(mpp, mpath->mpp, ETH_ALEN);
2013
2014 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2015 }
2016
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2017 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2018 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2019
2020 {
2021 struct ieee80211_sub_if_data *sdata;
2022 struct mesh_path *mpath;
2023
2024 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2025
2026 rcu_read_lock();
2027 mpath = mpp_path_lookup(sdata, dst);
2028 if (!mpath) {
2029 rcu_read_unlock();
2030 return -ENOENT;
2031 }
2032 memcpy(dst, mpath->dst, ETH_ALEN);
2033 mpp_set_pinfo(mpath, mpp, pinfo);
2034 rcu_read_unlock();
2035 return 0;
2036 }
2037
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2038 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2039 int idx, u8 *dst, u8 *mpp,
2040 struct mpath_info *pinfo)
2041 {
2042 struct ieee80211_sub_if_data *sdata;
2043 struct mesh_path *mpath;
2044
2045 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2046
2047 rcu_read_lock();
2048 mpath = mpp_path_lookup_by_idx(sdata, idx);
2049 if (!mpath) {
2050 rcu_read_unlock();
2051 return -ENOENT;
2052 }
2053 memcpy(dst, mpath->dst, ETH_ALEN);
2054 mpp_set_pinfo(mpath, mpp, pinfo);
2055 rcu_read_unlock();
2056 return 0;
2057 }
2058
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2059 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2060 struct net_device *dev,
2061 struct mesh_config *conf)
2062 {
2063 struct ieee80211_sub_if_data *sdata;
2064 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2065
2066 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2067 return 0;
2068 }
2069
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2070 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2071 {
2072 return (mask >> (parm-1)) & 0x1;
2073 }
2074
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2075 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2076 const struct mesh_setup *setup)
2077 {
2078 u8 *new_ie;
2079 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2080 struct ieee80211_sub_if_data, u.mesh);
2081 int i;
2082
2083 /* allocate information elements */
2084 new_ie = NULL;
2085
2086 if (setup->ie_len) {
2087 new_ie = kmemdup(setup->ie, setup->ie_len,
2088 GFP_KERNEL);
2089 if (!new_ie)
2090 return -ENOMEM;
2091 }
2092 ifmsh->ie_len = setup->ie_len;
2093 ifmsh->ie = new_ie;
2094
2095 /* now copy the rest of the setup parameters */
2096 ifmsh->mesh_id_len = setup->mesh_id_len;
2097 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2098 ifmsh->mesh_sp_id = setup->sync_method;
2099 ifmsh->mesh_pp_id = setup->path_sel_proto;
2100 ifmsh->mesh_pm_id = setup->path_metric;
2101 ifmsh->user_mpm = setup->user_mpm;
2102 ifmsh->mesh_auth_id = setup->auth_id;
2103 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2104 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2105 if (setup->is_authenticated)
2106 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2107 if (setup->is_secure)
2108 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2109
2110 /* mcast rate setting in Mesh Node */
2111 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2112 sizeof(setup->mcast_rate));
2113 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2114
2115 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2116 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2117
2118 sdata->beacon_rate_set = false;
2119 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2120 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2121 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2122 sdata->beacon_rateidx_mask[i] =
2123 setup->beacon_rate.control[i].legacy;
2124 if (sdata->beacon_rateidx_mask[i])
2125 sdata->beacon_rate_set = true;
2126 }
2127 }
2128
2129 return 0;
2130 }
2131
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2132 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2133 struct net_device *dev, u32 mask,
2134 const struct mesh_config *nconf)
2135 {
2136 struct mesh_config *conf;
2137 struct ieee80211_sub_if_data *sdata;
2138 struct ieee80211_if_mesh *ifmsh;
2139
2140 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2141 ifmsh = &sdata->u.mesh;
2142
2143 /* Set the config options which we are interested in setting */
2144 conf = &(sdata->u.mesh.mshcfg);
2145 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2146 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2147 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2148 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2149 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2150 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2151 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2152 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2153 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2154 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2155 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2156 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2157 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2158 conf->element_ttl = nconf->element_ttl;
2159 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2160 if (ifmsh->user_mpm)
2161 return -EBUSY;
2162 conf->auto_open_plinks = nconf->auto_open_plinks;
2163 }
2164 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2165 conf->dot11MeshNbrOffsetMaxNeighbor =
2166 nconf->dot11MeshNbrOffsetMaxNeighbor;
2167 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2168 conf->dot11MeshHWMPmaxPREQretries =
2169 nconf->dot11MeshHWMPmaxPREQretries;
2170 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2171 conf->path_refresh_time = nconf->path_refresh_time;
2172 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2173 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2174 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2175 conf->dot11MeshHWMPactivePathTimeout =
2176 nconf->dot11MeshHWMPactivePathTimeout;
2177 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2178 conf->dot11MeshHWMPpreqMinInterval =
2179 nconf->dot11MeshHWMPpreqMinInterval;
2180 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2181 conf->dot11MeshHWMPperrMinInterval =
2182 nconf->dot11MeshHWMPperrMinInterval;
2183 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2184 mask))
2185 conf->dot11MeshHWMPnetDiameterTraversalTime =
2186 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2187 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2188 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2189 ieee80211_mesh_root_setup(ifmsh);
2190 }
2191 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2192 /* our current gate announcement implementation rides on root
2193 * announcements, so require this ifmsh to also be a root node
2194 * */
2195 if (nconf->dot11MeshGateAnnouncementProtocol &&
2196 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2197 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2198 ieee80211_mesh_root_setup(ifmsh);
2199 }
2200 conf->dot11MeshGateAnnouncementProtocol =
2201 nconf->dot11MeshGateAnnouncementProtocol;
2202 }
2203 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2204 conf->dot11MeshHWMPRannInterval =
2205 nconf->dot11MeshHWMPRannInterval;
2206 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2207 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2208 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2209 /* our RSSI threshold implementation is supported only for
2210 * devices that report signal in dBm.
2211 */
2212 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2213 return -ENOTSUPP;
2214 conf->rssi_threshold = nconf->rssi_threshold;
2215 }
2216 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2217 conf->ht_opmode = nconf->ht_opmode;
2218 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2219 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2220 }
2221 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2222 conf->dot11MeshHWMPactivePathToRootTimeout =
2223 nconf->dot11MeshHWMPactivePathToRootTimeout;
2224 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2225 conf->dot11MeshHWMProotInterval =
2226 nconf->dot11MeshHWMProotInterval;
2227 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2228 conf->dot11MeshHWMPconfirmationInterval =
2229 nconf->dot11MeshHWMPconfirmationInterval;
2230 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2231 conf->power_mode = nconf->power_mode;
2232 ieee80211_mps_local_status_update(sdata);
2233 }
2234 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2235 conf->dot11MeshAwakeWindowDuration =
2236 nconf->dot11MeshAwakeWindowDuration;
2237 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2238 conf->plink_timeout = nconf->plink_timeout;
2239 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2240 conf->dot11MeshConnectedToMeshGate =
2241 nconf->dot11MeshConnectedToMeshGate;
2242 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2243 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2244 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2245 conf->dot11MeshConnectedToAuthServer =
2246 nconf->dot11MeshConnectedToAuthServer;
2247 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2248 return 0;
2249 }
2250
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2251 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2252 const struct mesh_config *conf,
2253 const struct mesh_setup *setup)
2254 {
2255 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2256 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2257 int err;
2258
2259 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2260 err = copy_mesh_setup(ifmsh, setup);
2261 if (err)
2262 return err;
2263
2264 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2265
2266 /* can mesh use other SMPS modes? */
2267 sdata->smps_mode = IEEE80211_SMPS_OFF;
2268 sdata->needed_rx_chains = sdata->local->rx_chains;
2269
2270 mutex_lock(&sdata->local->mtx);
2271 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2272 IEEE80211_CHANCTX_SHARED);
2273 mutex_unlock(&sdata->local->mtx);
2274 if (err)
2275 return err;
2276
2277 return ieee80211_start_mesh(sdata);
2278 }
2279
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2280 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2281 {
2282 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2283
2284 ieee80211_stop_mesh(sdata);
2285 mutex_lock(&sdata->local->mtx);
2286 ieee80211_vif_release_channel(sdata);
2287 kfree(sdata->u.mesh.ie);
2288 mutex_unlock(&sdata->local->mtx);
2289
2290 return 0;
2291 }
2292 #endif
2293
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2294 static int ieee80211_change_bss(struct wiphy *wiphy,
2295 struct net_device *dev,
2296 struct bss_parameters *params)
2297 {
2298 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2299 struct ieee80211_supported_band *sband;
2300 u32 changed = 0;
2301
2302 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2303 return -ENOENT;
2304
2305 sband = ieee80211_get_sband(sdata);
2306 if (!sband)
2307 return -EINVAL;
2308
2309 if (params->use_cts_prot >= 0) {
2310 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2311 changed |= BSS_CHANGED_ERP_CTS_PROT;
2312 }
2313 if (params->use_short_preamble >= 0) {
2314 sdata->vif.bss_conf.use_short_preamble =
2315 params->use_short_preamble;
2316 changed |= BSS_CHANGED_ERP_PREAMBLE;
2317 }
2318
2319 if (!sdata->vif.bss_conf.use_short_slot &&
2320 (sband->band == NL80211_BAND_5GHZ ||
2321 sband->band == NL80211_BAND_6GHZ)) {
2322 sdata->vif.bss_conf.use_short_slot = true;
2323 changed |= BSS_CHANGED_ERP_SLOT;
2324 }
2325
2326 if (params->use_short_slot_time >= 0) {
2327 sdata->vif.bss_conf.use_short_slot =
2328 params->use_short_slot_time;
2329 changed |= BSS_CHANGED_ERP_SLOT;
2330 }
2331
2332 if (params->basic_rates) {
2333 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2334 wiphy->bands[sband->band],
2335 params->basic_rates,
2336 params->basic_rates_len,
2337 &sdata->vif.bss_conf.basic_rates);
2338 changed |= BSS_CHANGED_BASIC_RATES;
2339 ieee80211_check_rate_mask(sdata);
2340 }
2341
2342 if (params->ap_isolate >= 0) {
2343 if (params->ap_isolate)
2344 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2345 else
2346 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2347 ieee80211_check_fast_rx_iface(sdata);
2348 }
2349
2350 if (params->ht_opmode >= 0) {
2351 sdata->vif.bss_conf.ht_operation_mode =
2352 (u16) params->ht_opmode;
2353 changed |= BSS_CHANGED_HT;
2354 }
2355
2356 if (params->p2p_ctwindow >= 0) {
2357 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2358 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2359 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2360 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2361 changed |= BSS_CHANGED_P2P_PS;
2362 }
2363
2364 if (params->p2p_opp_ps > 0) {
2365 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2366 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2367 changed |= BSS_CHANGED_P2P_PS;
2368 } else if (params->p2p_opp_ps == 0) {
2369 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2370 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2371 changed |= BSS_CHANGED_P2P_PS;
2372 }
2373
2374 ieee80211_bss_info_change_notify(sdata, changed);
2375
2376 return 0;
2377 }
2378
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2379 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2380 struct net_device *dev,
2381 struct ieee80211_txq_params *params)
2382 {
2383 struct ieee80211_local *local = wiphy_priv(wiphy);
2384 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2385 struct ieee80211_tx_queue_params p;
2386
2387 if (!local->ops->conf_tx)
2388 return -EOPNOTSUPP;
2389
2390 if (local->hw.queues < IEEE80211_NUM_ACS)
2391 return -EOPNOTSUPP;
2392
2393 memset(&p, 0, sizeof(p));
2394 p.aifs = params->aifs;
2395 p.cw_max = params->cwmax;
2396 p.cw_min = params->cwmin;
2397 p.txop = params->txop;
2398
2399 /*
2400 * Setting tx queue params disables u-apsd because it's only
2401 * called in master mode.
2402 */
2403 p.uapsd = false;
2404
2405 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2406
2407 sdata->tx_conf[params->ac] = p;
2408 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2409 wiphy_debug(local->hw.wiphy,
2410 "failed to set TX queue parameters for AC %d\n",
2411 params->ac);
2412 return -EINVAL;
2413 }
2414
2415 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2416
2417 return 0;
2418 }
2419
2420 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2421 static int ieee80211_suspend(struct wiphy *wiphy,
2422 struct cfg80211_wowlan *wowlan)
2423 {
2424 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2425 }
2426
ieee80211_resume(struct wiphy * wiphy)2427 static int ieee80211_resume(struct wiphy *wiphy)
2428 {
2429 return __ieee80211_resume(wiphy_priv(wiphy));
2430 }
2431 #else
2432 #define ieee80211_suspend NULL
2433 #define ieee80211_resume NULL
2434 #endif
2435
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2436 static int ieee80211_scan(struct wiphy *wiphy,
2437 struct cfg80211_scan_request *req)
2438 {
2439 struct ieee80211_sub_if_data *sdata;
2440
2441 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2442
2443 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2444 case NL80211_IFTYPE_STATION:
2445 case NL80211_IFTYPE_ADHOC:
2446 case NL80211_IFTYPE_MESH_POINT:
2447 case NL80211_IFTYPE_P2P_CLIENT:
2448 case NL80211_IFTYPE_P2P_DEVICE:
2449 break;
2450 case NL80211_IFTYPE_P2P_GO:
2451 if (sdata->local->ops->hw_scan)
2452 break;
2453 /*
2454 * FIXME: implement NoA while scanning in software,
2455 * for now fall through to allow scanning only when
2456 * beaconing hasn't been configured yet
2457 */
2458 fallthrough;
2459 case NL80211_IFTYPE_AP:
2460 /*
2461 * If the scan has been forced (and the driver supports
2462 * forcing), don't care about being beaconing already.
2463 * This will create problems to the attached stations (e.g. all
2464 * the frames sent while scanning on other channel will be
2465 * lost)
2466 */
2467 if (sdata->u.ap.beacon &&
2468 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2469 !(req->flags & NL80211_SCAN_FLAG_AP)))
2470 return -EOPNOTSUPP;
2471 break;
2472 case NL80211_IFTYPE_NAN:
2473 default:
2474 return -EOPNOTSUPP;
2475 }
2476
2477 return ieee80211_request_scan(sdata, req);
2478 }
2479
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2480 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2481 {
2482 ieee80211_scan_cancel(wiphy_priv(wiphy));
2483 }
2484
2485 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2486 ieee80211_sched_scan_start(struct wiphy *wiphy,
2487 struct net_device *dev,
2488 struct cfg80211_sched_scan_request *req)
2489 {
2490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2491
2492 if (!sdata->local->ops->sched_scan_start)
2493 return -EOPNOTSUPP;
2494
2495 return ieee80211_request_sched_scan_start(sdata, req);
2496 }
2497
2498 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2499 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2500 u64 reqid)
2501 {
2502 struct ieee80211_local *local = wiphy_priv(wiphy);
2503
2504 if (!local->ops->sched_scan_stop)
2505 return -EOPNOTSUPP;
2506
2507 return ieee80211_request_sched_scan_stop(local);
2508 }
2509
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2510 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2511 struct cfg80211_auth_request *req)
2512 {
2513 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2514 }
2515
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2516 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2517 struct cfg80211_assoc_request *req)
2518 {
2519 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2520 }
2521
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2522 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2523 struct cfg80211_deauth_request *req)
2524 {
2525 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2526 }
2527
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2528 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2529 struct cfg80211_disassoc_request *req)
2530 {
2531 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2532 }
2533
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2534 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2535 struct cfg80211_ibss_params *params)
2536 {
2537 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2538 }
2539
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2540 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2541 {
2542 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2543 }
2544
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2545 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2546 struct ocb_setup *setup)
2547 {
2548 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2549 }
2550
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2551 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2552 {
2553 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2554 }
2555
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2556 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2557 int rate[NUM_NL80211_BANDS])
2558 {
2559 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2560
2561 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2562 sizeof(int) * NUM_NL80211_BANDS);
2563
2564 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2565
2566 return 0;
2567 }
2568
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2569 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2570 {
2571 struct ieee80211_local *local = wiphy_priv(wiphy);
2572 int err;
2573
2574 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2575 ieee80211_check_fast_xmit_all(local);
2576
2577 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2578
2579 if (err) {
2580 ieee80211_check_fast_xmit_all(local);
2581 return err;
2582 }
2583 }
2584
2585 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2586 (changed & WIPHY_PARAM_DYN_ACK)) {
2587 s16 coverage_class;
2588
2589 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2590 wiphy->coverage_class : -1;
2591 err = drv_set_coverage_class(local, coverage_class);
2592
2593 if (err)
2594 return err;
2595 }
2596
2597 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2598 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2599
2600 if (err)
2601 return err;
2602 }
2603
2604 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2605 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2606 return -EINVAL;
2607 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2608 }
2609 if (changed & WIPHY_PARAM_RETRY_LONG) {
2610 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2611 return -EINVAL;
2612 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2613 }
2614 if (changed &
2615 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2616 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2617
2618 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2619 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2620 WIPHY_PARAM_TXQ_QUANTUM))
2621 ieee80211_txq_set_params(local);
2622
2623 return 0;
2624 }
2625
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)2626 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2627 struct wireless_dev *wdev,
2628 enum nl80211_tx_power_setting type, int mbm)
2629 {
2630 struct ieee80211_local *local = wiphy_priv(wiphy);
2631 struct ieee80211_sub_if_data *sdata;
2632 enum nl80211_tx_power_setting txp_type = type;
2633 bool update_txp_type = false;
2634 bool has_monitor = false;
2635
2636 if (wdev) {
2637 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2638
2639 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2640 sdata = rtnl_dereference(local->monitor_sdata);
2641 if (!sdata)
2642 return -EOPNOTSUPP;
2643 }
2644
2645 switch (type) {
2646 case NL80211_TX_POWER_AUTOMATIC:
2647 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2648 txp_type = NL80211_TX_POWER_LIMITED;
2649 break;
2650 case NL80211_TX_POWER_LIMITED:
2651 case NL80211_TX_POWER_FIXED:
2652 if (mbm < 0 || (mbm % 100))
2653 return -EOPNOTSUPP;
2654 sdata->user_power_level = MBM_TO_DBM(mbm);
2655 break;
2656 }
2657
2658 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2659 update_txp_type = true;
2660 sdata->vif.bss_conf.txpower_type = txp_type;
2661 }
2662
2663 ieee80211_recalc_txpower(sdata, update_txp_type);
2664
2665 return 0;
2666 }
2667
2668 switch (type) {
2669 case NL80211_TX_POWER_AUTOMATIC:
2670 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2671 txp_type = NL80211_TX_POWER_LIMITED;
2672 break;
2673 case NL80211_TX_POWER_LIMITED:
2674 case NL80211_TX_POWER_FIXED:
2675 if (mbm < 0 || (mbm % 100))
2676 return -EOPNOTSUPP;
2677 local->user_power_level = MBM_TO_DBM(mbm);
2678 break;
2679 }
2680
2681 mutex_lock(&local->iflist_mtx);
2682 list_for_each_entry(sdata, &local->interfaces, list) {
2683 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2684 has_monitor = true;
2685 continue;
2686 }
2687 sdata->user_power_level = local->user_power_level;
2688 if (txp_type != sdata->vif.bss_conf.txpower_type)
2689 update_txp_type = true;
2690 sdata->vif.bss_conf.txpower_type = txp_type;
2691 }
2692 list_for_each_entry(sdata, &local->interfaces, list) {
2693 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2694 continue;
2695 ieee80211_recalc_txpower(sdata, update_txp_type);
2696 }
2697 mutex_unlock(&local->iflist_mtx);
2698
2699 if (has_monitor) {
2700 sdata = rtnl_dereference(local->monitor_sdata);
2701 if (sdata) {
2702 sdata->user_power_level = local->user_power_level;
2703 if (txp_type != sdata->vif.bss_conf.txpower_type)
2704 update_txp_type = true;
2705 sdata->vif.bss_conf.txpower_type = txp_type;
2706
2707 ieee80211_recalc_txpower(sdata, update_txp_type);
2708 }
2709 }
2710
2711 return 0;
2712 }
2713
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)2714 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2715 struct wireless_dev *wdev,
2716 int *dbm)
2717 {
2718 struct ieee80211_local *local = wiphy_priv(wiphy);
2719 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2720
2721 if (local->ops->get_txpower)
2722 return drv_get_txpower(local, sdata, dbm);
2723
2724 if (!local->use_chanctx)
2725 *dbm = local->hw.conf.power_level;
2726 else
2727 *dbm = sdata->vif.bss_conf.txpower;
2728
2729 return 0;
2730 }
2731
ieee80211_set_wds_peer(struct wiphy * wiphy,struct net_device * dev,const u8 * addr)2732 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2733 const u8 *addr)
2734 {
2735 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2736
2737 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2738
2739 return 0;
2740 }
2741
ieee80211_rfkill_poll(struct wiphy * wiphy)2742 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2743 {
2744 struct ieee80211_local *local = wiphy_priv(wiphy);
2745
2746 drv_rfkill_poll(local);
2747 }
2748
2749 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)2750 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2751 struct wireless_dev *wdev,
2752 void *data, int len)
2753 {
2754 struct ieee80211_local *local = wiphy_priv(wiphy);
2755 struct ieee80211_vif *vif = NULL;
2756
2757 if (!local->ops->testmode_cmd)
2758 return -EOPNOTSUPP;
2759
2760 if (wdev) {
2761 struct ieee80211_sub_if_data *sdata;
2762
2763 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2764 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2765 vif = &sdata->vif;
2766 }
2767
2768 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2769 }
2770
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)2771 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2772 struct sk_buff *skb,
2773 struct netlink_callback *cb,
2774 void *data, int len)
2775 {
2776 struct ieee80211_local *local = wiphy_priv(wiphy);
2777
2778 if (!local->ops->testmode_dump)
2779 return -EOPNOTSUPP;
2780
2781 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2782 }
2783 #endif
2784
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,enum ieee80211_smps_mode smps_mode)2785 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2786 enum ieee80211_smps_mode smps_mode)
2787 {
2788 const u8 *ap;
2789 enum ieee80211_smps_mode old_req;
2790 int err;
2791 struct sta_info *sta;
2792 bool tdls_peer_found = false;
2793
2794 lockdep_assert_held(&sdata->wdev.mtx);
2795
2796 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2797 return -EINVAL;
2798
2799 old_req = sdata->u.mgd.req_smps;
2800 sdata->u.mgd.req_smps = smps_mode;
2801
2802 if (old_req == smps_mode &&
2803 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2804 return 0;
2805
2806 /*
2807 * If not associated, or current association is not an HT
2808 * association, there's no need to do anything, just store
2809 * the new value until we associate.
2810 */
2811 if (!sdata->u.mgd.associated ||
2812 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2813 return 0;
2814
2815 ap = sdata->u.mgd.associated->bssid;
2816
2817 rcu_read_lock();
2818 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2819 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2820 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2821 continue;
2822
2823 tdls_peer_found = true;
2824 break;
2825 }
2826 rcu_read_unlock();
2827
2828 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2829 if (tdls_peer_found || !sdata->u.mgd.powersave)
2830 smps_mode = IEEE80211_SMPS_OFF;
2831 else
2832 smps_mode = IEEE80211_SMPS_DYNAMIC;
2833 }
2834
2835 /* send SM PS frame to AP */
2836 err = ieee80211_send_smps_action(sdata, smps_mode,
2837 ap, ap);
2838 if (err)
2839 sdata->u.mgd.req_smps = old_req;
2840 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2841 ieee80211_teardown_tdls_peers(sdata);
2842
2843 return err;
2844 }
2845
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)2846 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2847 bool enabled, int timeout)
2848 {
2849 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2850 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2851
2852 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2853 return -EOPNOTSUPP;
2854
2855 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2856 return -EOPNOTSUPP;
2857
2858 if (enabled == sdata->u.mgd.powersave &&
2859 timeout == local->dynamic_ps_forced_timeout)
2860 return 0;
2861
2862 sdata->u.mgd.powersave = enabled;
2863 local->dynamic_ps_forced_timeout = timeout;
2864
2865 /* no change, but if automatic follow powersave */
2866 sdata_lock(sdata);
2867 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2868 sdata_unlock(sdata);
2869
2870 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2871 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2872
2873 ieee80211_recalc_ps(local);
2874 ieee80211_recalc_ps_vif(sdata);
2875 ieee80211_check_fast_rx_iface(sdata);
2876
2877 return 0;
2878 }
2879
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)2880 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2881 struct net_device *dev,
2882 s32 rssi_thold, u32 rssi_hyst)
2883 {
2884 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2885 struct ieee80211_vif *vif = &sdata->vif;
2886 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2887
2888 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2889 rssi_hyst == bss_conf->cqm_rssi_hyst)
2890 return 0;
2891
2892 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2893 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2894 return -EOPNOTSUPP;
2895
2896 bss_conf->cqm_rssi_thold = rssi_thold;
2897 bss_conf->cqm_rssi_hyst = rssi_hyst;
2898 bss_conf->cqm_rssi_low = 0;
2899 bss_conf->cqm_rssi_high = 0;
2900 sdata->u.mgd.last_cqm_event_signal = 0;
2901
2902 /* tell the driver upon association, unless already associated */
2903 if (sdata->u.mgd.associated &&
2904 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2905 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2906
2907 return 0;
2908 }
2909
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)2910 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2911 struct net_device *dev,
2912 s32 rssi_low, s32 rssi_high)
2913 {
2914 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2915 struct ieee80211_vif *vif = &sdata->vif;
2916 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2917
2918 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2919 return -EOPNOTSUPP;
2920
2921 bss_conf->cqm_rssi_low = rssi_low;
2922 bss_conf->cqm_rssi_high = rssi_high;
2923 bss_conf->cqm_rssi_thold = 0;
2924 bss_conf->cqm_rssi_hyst = 0;
2925 sdata->u.mgd.last_cqm_event_signal = 0;
2926
2927 /* tell the driver upon association, unless already associated */
2928 if (sdata->u.mgd.associated &&
2929 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2930 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2931
2932 return 0;
2933 }
2934
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,const u8 * addr,const struct cfg80211_bitrate_mask * mask)2935 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2936 struct net_device *dev,
2937 const u8 *addr,
2938 const struct cfg80211_bitrate_mask *mask)
2939 {
2940 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2941 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2942 int i, ret;
2943
2944 if (!ieee80211_sdata_running(sdata))
2945 return -ENETDOWN;
2946
2947 /*
2948 * If active validate the setting and reject it if it doesn't leave
2949 * at least one basic rate usable, since we really have to be able
2950 * to send something, and if we're an AP we have to be able to do
2951 * so at a basic rate so that all clients can receive it.
2952 */
2953 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2954 sdata->vif.bss_conf.chandef.chan) {
2955 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2956 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2957
2958 if (!(mask->control[band].legacy & basic_rates))
2959 return -EINVAL;
2960 }
2961
2962 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2963 ret = drv_set_bitrate_mask(local, sdata, mask);
2964 if (ret)
2965 return ret;
2966 }
2967
2968 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2969 struct ieee80211_supported_band *sband = wiphy->bands[i];
2970 int j;
2971
2972 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2973 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2974 sizeof(mask->control[i].ht_mcs));
2975 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2976 mask->control[i].vht_mcs,
2977 sizeof(mask->control[i].vht_mcs));
2978
2979 sdata->rc_has_mcs_mask[i] = false;
2980 sdata->rc_has_vht_mcs_mask[i] = false;
2981 if (!sband)
2982 continue;
2983
2984 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2985 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
2986 sdata->rc_has_mcs_mask[i] = true;
2987 break;
2988 }
2989 }
2990
2991 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2992 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
2993 sdata->rc_has_vht_mcs_mask[i] = true;
2994 break;
2995 }
2996 }
2997 }
2998
2999 return 0;
3000 }
3001
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3002 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3003 struct net_device *dev,
3004 struct cfg80211_chan_def *chandef,
3005 u32 cac_time_ms)
3006 {
3007 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3008 struct ieee80211_local *local = sdata->local;
3009 int err;
3010
3011 mutex_lock(&local->mtx);
3012 if (!list_empty(&local->roc_list) || local->scanning) {
3013 err = -EBUSY;
3014 goto out_unlock;
3015 }
3016
3017 /* whatever, but channel contexts should not complain about that one */
3018 sdata->smps_mode = IEEE80211_SMPS_OFF;
3019 sdata->needed_rx_chains = local->rx_chains;
3020
3021 err = ieee80211_vif_use_channel(sdata, chandef,
3022 IEEE80211_CHANCTX_SHARED);
3023 if (err)
3024 goto out_unlock;
3025
3026 ieee80211_queue_delayed_work(&sdata->local->hw,
3027 &sdata->dfs_cac_timer_work,
3028 msecs_to_jiffies(cac_time_ms));
3029
3030 out_unlock:
3031 mutex_unlock(&local->mtx);
3032 return err;
3033 }
3034
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev)3035 static void ieee80211_end_cac(struct wiphy *wiphy,
3036 struct net_device *dev)
3037 {
3038 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3039 struct ieee80211_local *local = sdata->local;
3040
3041 mutex_lock(&local->mtx);
3042 list_for_each_entry(sdata, &local->interfaces, list) {
3043 /* it might be waiting for the local->mtx, but then
3044 * by the time it gets it, sdata->wdev.cac_started
3045 * will no longer be true
3046 */
3047 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3048
3049 if (sdata->wdev.cac_started) {
3050 ieee80211_vif_release_channel(sdata);
3051 sdata->wdev.cac_started = false;
3052 }
3053 }
3054 mutex_unlock(&local->mtx);
3055 }
3056
3057 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3058 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3059 {
3060 struct cfg80211_beacon_data *new_beacon;
3061 u8 *pos;
3062 int len;
3063
3064 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3065 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3066 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3067
3068 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3069 if (!new_beacon)
3070 return NULL;
3071
3072 pos = (u8 *)(new_beacon + 1);
3073 if (beacon->head_len) {
3074 new_beacon->head_len = beacon->head_len;
3075 new_beacon->head = pos;
3076 memcpy(pos, beacon->head, beacon->head_len);
3077 pos += beacon->head_len;
3078 }
3079 if (beacon->tail_len) {
3080 new_beacon->tail_len = beacon->tail_len;
3081 new_beacon->tail = pos;
3082 memcpy(pos, beacon->tail, beacon->tail_len);
3083 pos += beacon->tail_len;
3084 }
3085 if (beacon->beacon_ies_len) {
3086 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3087 new_beacon->beacon_ies = pos;
3088 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3089 pos += beacon->beacon_ies_len;
3090 }
3091 if (beacon->proberesp_ies_len) {
3092 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3093 new_beacon->proberesp_ies = pos;
3094 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3095 pos += beacon->proberesp_ies_len;
3096 }
3097 if (beacon->assocresp_ies_len) {
3098 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3099 new_beacon->assocresp_ies = pos;
3100 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3101 pos += beacon->assocresp_ies_len;
3102 }
3103 if (beacon->probe_resp_len) {
3104 new_beacon->probe_resp_len = beacon->probe_resp_len;
3105 new_beacon->probe_resp = pos;
3106 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3107 pos += beacon->probe_resp_len;
3108 }
3109
3110 /* might copy -1, meaning no changes requested */
3111 new_beacon->ftm_responder = beacon->ftm_responder;
3112 if (beacon->lci) {
3113 new_beacon->lci_len = beacon->lci_len;
3114 new_beacon->lci = pos;
3115 memcpy(pos, beacon->lci, beacon->lci_len);
3116 pos += beacon->lci_len;
3117 }
3118 if (beacon->civicloc) {
3119 new_beacon->civicloc_len = beacon->civicloc_len;
3120 new_beacon->civicloc = pos;
3121 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3122 pos += beacon->civicloc_len;
3123 }
3124
3125 return new_beacon;
3126 }
3127
ieee80211_csa_finish(struct ieee80211_vif * vif)3128 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3129 {
3130 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3131
3132 ieee80211_queue_work(&sdata->local->hw,
3133 &sdata->csa_finalize_work);
3134 }
3135 EXPORT_SYMBOL(ieee80211_csa_finish);
3136
ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u32 * changed)3137 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3138 u32 *changed)
3139 {
3140 int err;
3141
3142 switch (sdata->vif.type) {
3143 case NL80211_IFTYPE_AP:
3144 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3145 NULL);
3146 kfree(sdata->u.ap.next_beacon);
3147 sdata->u.ap.next_beacon = NULL;
3148
3149 if (err < 0)
3150 return err;
3151 *changed |= err;
3152 break;
3153 case NL80211_IFTYPE_ADHOC:
3154 err = ieee80211_ibss_finish_csa(sdata);
3155 if (err < 0)
3156 return err;
3157 *changed |= err;
3158 break;
3159 #ifdef CONFIG_MAC80211_MESH
3160 case NL80211_IFTYPE_MESH_POINT:
3161 err = ieee80211_mesh_finish_csa(sdata);
3162 if (err < 0)
3163 return err;
3164 *changed |= err;
3165 break;
3166 #endif
3167 default:
3168 WARN_ON(1);
3169 return -EINVAL;
3170 }
3171
3172 return 0;
3173 }
3174
__ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3175 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3176 {
3177 struct ieee80211_local *local = sdata->local;
3178 u32 changed = 0;
3179 int err;
3180
3181 sdata_assert_lock(sdata);
3182 lockdep_assert_held(&local->mtx);
3183 lockdep_assert_held(&local->chanctx_mtx);
3184
3185 /*
3186 * using reservation isn't immediate as it may be deferred until later
3187 * with multi-vif. once reservation is complete it will re-schedule the
3188 * work with no reserved_chanctx so verify chandef to check if it
3189 * completed successfully
3190 */
3191
3192 if (sdata->reserved_chanctx) {
3193 /*
3194 * with multi-vif csa driver may call ieee80211_csa_finish()
3195 * many times while waiting for other interfaces to use their
3196 * reservations
3197 */
3198 if (sdata->reserved_ready)
3199 return 0;
3200
3201 return ieee80211_vif_use_reserved_context(sdata);
3202 }
3203
3204 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3205 &sdata->csa_chandef))
3206 return -EINVAL;
3207
3208 sdata->vif.csa_active = false;
3209
3210 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3211 if (err)
3212 return err;
3213
3214 ieee80211_bss_info_change_notify(sdata, changed);
3215
3216 if (sdata->csa_block_tx) {
3217 ieee80211_wake_vif_queues(local, sdata,
3218 IEEE80211_QUEUE_STOP_REASON_CSA);
3219 sdata->csa_block_tx = false;
3220 }
3221
3222 err = drv_post_channel_switch(sdata);
3223 if (err)
3224 return err;
3225
3226 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3227
3228 return 0;
3229 }
3230
ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3231 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3232 {
3233 if (__ieee80211_csa_finalize(sdata)) {
3234 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3235 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3236 GFP_KERNEL);
3237 }
3238 }
3239
ieee80211_csa_finalize_work(struct work_struct * work)3240 void ieee80211_csa_finalize_work(struct work_struct *work)
3241 {
3242 struct ieee80211_sub_if_data *sdata =
3243 container_of(work, struct ieee80211_sub_if_data,
3244 csa_finalize_work);
3245 struct ieee80211_local *local = sdata->local;
3246
3247 sdata_lock(sdata);
3248 mutex_lock(&local->mtx);
3249 mutex_lock(&local->chanctx_mtx);
3250
3251 /* AP might have been stopped while waiting for the lock. */
3252 if (!sdata->vif.csa_active)
3253 goto unlock;
3254
3255 if (!ieee80211_sdata_running(sdata))
3256 goto unlock;
3257
3258 ieee80211_csa_finalize(sdata);
3259
3260 unlock:
3261 mutex_unlock(&local->chanctx_mtx);
3262 mutex_unlock(&local->mtx);
3263 sdata_unlock(sdata);
3264 }
3265
ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u32 * changed)3266 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3267 struct cfg80211_csa_settings *params,
3268 u32 *changed)
3269 {
3270 struct ieee80211_csa_settings csa = {};
3271 int err;
3272
3273 switch (sdata->vif.type) {
3274 case NL80211_IFTYPE_AP:
3275 sdata->u.ap.next_beacon =
3276 cfg80211_beacon_dup(¶ms->beacon_after);
3277 if (!sdata->u.ap.next_beacon)
3278 return -ENOMEM;
3279
3280 /*
3281 * With a count of 0, we don't have to wait for any
3282 * TBTT before switching, so complete the CSA
3283 * immediately. In theory, with a count == 1 we
3284 * should delay the switch until just before the next
3285 * TBTT, but that would complicate things so we switch
3286 * immediately too. If we would delay the switch
3287 * until the next TBTT, we would have to set the probe
3288 * response here.
3289 *
3290 * TODO: A channel switch with count <= 1 without
3291 * sending a CSA action frame is kind of useless,
3292 * because the clients won't know we're changing
3293 * channels. The action frame must be implemented
3294 * either here or in the userspace.
3295 */
3296 if (params->count <= 1)
3297 break;
3298
3299 if ((params->n_counter_offsets_beacon >
3300 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3301 (params->n_counter_offsets_presp >
3302 IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3303 return -EINVAL;
3304
3305 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3306 csa.counter_offsets_presp = params->counter_offsets_presp;
3307 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3308 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3309 csa.count = params->count;
3310
3311 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa);
3312 if (err < 0) {
3313 kfree(sdata->u.ap.next_beacon);
3314 return err;
3315 }
3316 *changed |= err;
3317
3318 break;
3319 case NL80211_IFTYPE_ADHOC:
3320 if (!sdata->vif.bss_conf.ibss_joined)
3321 return -EINVAL;
3322
3323 if (params->chandef.width != sdata->u.ibss.chandef.width)
3324 return -EINVAL;
3325
3326 switch (params->chandef.width) {
3327 case NL80211_CHAN_WIDTH_40:
3328 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3329 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3330 return -EINVAL;
3331 case NL80211_CHAN_WIDTH_5:
3332 case NL80211_CHAN_WIDTH_10:
3333 case NL80211_CHAN_WIDTH_20_NOHT:
3334 case NL80211_CHAN_WIDTH_20:
3335 break;
3336 default:
3337 return -EINVAL;
3338 }
3339
3340 /* changes into another band are not supported */
3341 if (sdata->u.ibss.chandef.chan->band !=
3342 params->chandef.chan->band)
3343 return -EINVAL;
3344
3345 /* see comments in the NL80211_IFTYPE_AP block */
3346 if (params->count > 1) {
3347 err = ieee80211_ibss_csa_beacon(sdata, params);
3348 if (err < 0)
3349 return err;
3350 *changed |= err;
3351 }
3352
3353 ieee80211_send_action_csa(sdata, params);
3354
3355 break;
3356 #ifdef CONFIG_MAC80211_MESH
3357 case NL80211_IFTYPE_MESH_POINT: {
3358 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3359
3360 /* changes into another band are not supported */
3361 if (sdata->vif.bss_conf.chandef.chan->band !=
3362 params->chandef.chan->band)
3363 return -EINVAL;
3364
3365 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3366 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3367 if (!ifmsh->pre_value)
3368 ifmsh->pre_value = 1;
3369 else
3370 ifmsh->pre_value++;
3371 }
3372
3373 /* see comments in the NL80211_IFTYPE_AP block */
3374 if (params->count > 1) {
3375 err = ieee80211_mesh_csa_beacon(sdata, params);
3376 if (err < 0) {
3377 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3378 return err;
3379 }
3380 *changed |= err;
3381 }
3382
3383 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3384 ieee80211_send_action_csa(sdata, params);
3385
3386 break;
3387 }
3388 #endif
3389 default:
3390 return -EOPNOTSUPP;
3391 }
3392
3393 return 0;
3394 }
3395
3396 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3397 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3398 struct cfg80211_csa_settings *params)
3399 {
3400 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3401 struct ieee80211_local *local = sdata->local;
3402 struct ieee80211_channel_switch ch_switch;
3403 struct ieee80211_chanctx_conf *conf;
3404 struct ieee80211_chanctx *chanctx;
3405 u32 changed = 0;
3406 int err;
3407
3408 sdata_assert_lock(sdata);
3409 lockdep_assert_held(&local->mtx);
3410
3411 if (!list_empty(&local->roc_list) || local->scanning)
3412 return -EBUSY;
3413
3414 if (sdata->wdev.cac_started)
3415 return -EBUSY;
3416
3417 if (cfg80211_chandef_identical(¶ms->chandef,
3418 &sdata->vif.bss_conf.chandef))
3419 return -EINVAL;
3420
3421 /* don't allow another channel switch if one is already active. */
3422 if (sdata->vif.csa_active)
3423 return -EBUSY;
3424
3425 mutex_lock(&local->chanctx_mtx);
3426 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3427 lockdep_is_held(&local->chanctx_mtx));
3428 if (!conf) {
3429 err = -EBUSY;
3430 goto out;
3431 }
3432
3433 if (params->chandef.chan->freq_offset) {
3434 /* this may work, but is untested */
3435 err = -EOPNOTSUPP;
3436 goto out;
3437 }
3438
3439 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3440
3441 ch_switch.timestamp = 0;
3442 ch_switch.device_timestamp = 0;
3443 ch_switch.block_tx = params->block_tx;
3444 ch_switch.chandef = params->chandef;
3445 ch_switch.count = params->count;
3446
3447 err = drv_pre_channel_switch(sdata, &ch_switch);
3448 if (err)
3449 goto out;
3450
3451 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef,
3452 chanctx->mode,
3453 params->radar_required);
3454 if (err)
3455 goto out;
3456
3457 /* if reservation is invalid then this will fail */
3458 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3459 if (err) {
3460 ieee80211_vif_unreserve_chanctx(sdata);
3461 goto out;
3462 }
3463
3464 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3465 if (err) {
3466 ieee80211_vif_unreserve_chanctx(sdata);
3467 goto out;
3468 }
3469
3470 sdata->csa_chandef = params->chandef;
3471 sdata->csa_block_tx = params->block_tx;
3472 sdata->vif.csa_active = true;
3473
3474 if (sdata->csa_block_tx)
3475 ieee80211_stop_vif_queues(local, sdata,
3476 IEEE80211_QUEUE_STOP_REASON_CSA);
3477
3478 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3479 params->count);
3480
3481 if (changed) {
3482 ieee80211_bss_info_change_notify(sdata, changed);
3483 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3484 } else {
3485 /* if the beacon didn't change, we can finalize immediately */
3486 ieee80211_csa_finalize(sdata);
3487 }
3488
3489 out:
3490 mutex_unlock(&local->chanctx_mtx);
3491 return err;
3492 }
3493
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3494 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3495 struct cfg80211_csa_settings *params)
3496 {
3497 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3498 struct ieee80211_local *local = sdata->local;
3499 int err;
3500
3501 mutex_lock(&local->mtx);
3502 err = __ieee80211_channel_switch(wiphy, dev, params);
3503 mutex_unlock(&local->mtx);
3504
3505 return err;
3506 }
3507
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)3508 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3509 {
3510 lockdep_assert_held(&local->mtx);
3511
3512 local->roc_cookie_counter++;
3513
3514 /* wow, you wrapped 64 bits ... more likely a bug */
3515 if (WARN_ON(local->roc_cookie_counter == 0))
3516 local->roc_cookie_counter++;
3517
3518 return local->roc_cookie_counter;
3519 }
3520
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)3521 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3522 u64 *cookie, gfp_t gfp)
3523 {
3524 unsigned long spin_flags;
3525 struct sk_buff *ack_skb;
3526 int id;
3527
3528 ack_skb = skb_copy(skb, gfp);
3529 if (!ack_skb)
3530 return -ENOMEM;
3531
3532 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3533 id = idr_alloc(&local->ack_status_frames, ack_skb,
3534 1, 0x2000, GFP_ATOMIC);
3535 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3536
3537 if (id < 0) {
3538 kfree_skb(ack_skb);
3539 return -ENOMEM;
3540 }
3541
3542 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3543
3544 *cookie = ieee80211_mgmt_tx_cookie(local);
3545 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3546
3547 return 0;
3548 }
3549
3550 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)3551 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3552 struct wireless_dev *wdev,
3553 struct mgmt_frame_regs *upd)
3554 {
3555 struct ieee80211_local *local = wiphy_priv(wiphy);
3556 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3557 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3558 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3559 bool global_change, intf_change;
3560
3561 global_change =
3562 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3563 (local->rx_mcast_action_reg !=
3564 !!(upd->global_mcast_stypes & action_mask));
3565 local->probe_req_reg = upd->global_stypes & preq_mask;
3566 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3567
3568 intf_change = (sdata->vif.probe_req_reg !=
3569 !!(upd->interface_stypes & preq_mask)) ||
3570 (sdata->vif.rx_mcast_action_reg !=
3571 !!(upd->interface_mcast_stypes & action_mask));
3572 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3573 sdata->vif.rx_mcast_action_reg =
3574 upd->interface_mcast_stypes & action_mask;
3575
3576 if (!local->open_count)
3577 return;
3578
3579 if (intf_change && ieee80211_sdata_running(sdata))
3580 drv_config_iface_filter(local, sdata,
3581 sdata->vif.probe_req_reg ?
3582 FIF_PROBE_REQ : 0,
3583 FIF_PROBE_REQ);
3584
3585 if (global_change)
3586 ieee80211_configure_filter(local);
3587 }
3588
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)3589 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3590 {
3591 struct ieee80211_local *local = wiphy_priv(wiphy);
3592
3593 if (local->started)
3594 return -EOPNOTSUPP;
3595
3596 return drv_set_antenna(local, tx_ant, rx_ant);
3597 }
3598
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)3599 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3600 {
3601 struct ieee80211_local *local = wiphy_priv(wiphy);
3602
3603 return drv_get_antenna(local, tx_ant, rx_ant);
3604 }
3605
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)3606 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3607 struct net_device *dev,
3608 struct cfg80211_gtk_rekey_data *data)
3609 {
3610 struct ieee80211_local *local = wiphy_priv(wiphy);
3611 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3612
3613 if (!local->ops->set_rekey_data)
3614 return -EOPNOTSUPP;
3615
3616 drv_set_rekey_data(local, sdata, data);
3617
3618 return 0;
3619 }
3620
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)3621 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3622 const u8 *peer, u64 *cookie)
3623 {
3624 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3625 struct ieee80211_local *local = sdata->local;
3626 struct ieee80211_qos_hdr *nullfunc;
3627 struct sk_buff *skb;
3628 int size = sizeof(*nullfunc);
3629 __le16 fc;
3630 bool qos;
3631 struct ieee80211_tx_info *info;
3632 struct sta_info *sta;
3633 struct ieee80211_chanctx_conf *chanctx_conf;
3634 enum nl80211_band band;
3635 int ret;
3636
3637 /* the lock is needed to assign the cookie later */
3638 mutex_lock(&local->mtx);
3639
3640 rcu_read_lock();
3641 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3642 if (WARN_ON(!chanctx_conf)) {
3643 ret = -EINVAL;
3644 goto unlock;
3645 }
3646 band = chanctx_conf->def.chan->band;
3647 sta = sta_info_get_bss(sdata, peer);
3648 if (sta) {
3649 qos = sta->sta.wme;
3650 } else {
3651 ret = -ENOLINK;
3652 goto unlock;
3653 }
3654
3655 if (qos) {
3656 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3657 IEEE80211_STYPE_QOS_NULLFUNC |
3658 IEEE80211_FCTL_FROMDS);
3659 } else {
3660 size -= 2;
3661 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3662 IEEE80211_STYPE_NULLFUNC |
3663 IEEE80211_FCTL_FROMDS);
3664 }
3665
3666 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3667 if (!skb) {
3668 ret = -ENOMEM;
3669 goto unlock;
3670 }
3671
3672 skb->dev = dev;
3673
3674 skb_reserve(skb, local->hw.extra_tx_headroom);
3675
3676 nullfunc = skb_put(skb, size);
3677 nullfunc->frame_control = fc;
3678 nullfunc->duration_id = 0;
3679 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3680 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3681 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3682 nullfunc->seq_ctrl = 0;
3683
3684 info = IEEE80211_SKB_CB(skb);
3685
3686 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3687 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3688 info->band = band;
3689
3690 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3691 skb->priority = 7;
3692 if (qos)
3693 nullfunc->qos_ctrl = cpu_to_le16(7);
3694
3695 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3696 if (ret) {
3697 kfree_skb(skb);
3698 goto unlock;
3699 }
3700
3701 local_bh_disable();
3702 ieee80211_xmit(sdata, sta, skb);
3703 local_bh_enable();
3704
3705 ret = 0;
3706 unlock:
3707 rcu_read_unlock();
3708 mutex_unlock(&local->mtx);
3709
3710 return ret;
3711 }
3712
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_chan_def * chandef)3713 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3714 struct wireless_dev *wdev,
3715 struct cfg80211_chan_def *chandef)
3716 {
3717 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3718 struct ieee80211_local *local = wiphy_priv(wiphy);
3719 struct ieee80211_chanctx_conf *chanctx_conf;
3720 int ret = -ENODATA;
3721
3722 rcu_read_lock();
3723 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3724 if (chanctx_conf) {
3725 *chandef = sdata->vif.bss_conf.chandef;
3726 ret = 0;
3727 } else if (local->open_count > 0 &&
3728 local->open_count == local->monitors &&
3729 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3730 if (local->use_chanctx)
3731 *chandef = local->monitor_chandef;
3732 else
3733 *chandef = local->_oper_chandef;
3734 ret = 0;
3735 }
3736 rcu_read_unlock();
3737
3738 return ret;
3739 }
3740
3741 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)3742 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3743 {
3744 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3745 }
3746 #endif
3747
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)3748 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3749 struct net_device *dev,
3750 struct cfg80211_qos_map *qos_map)
3751 {
3752 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3753 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3754
3755 if (qos_map) {
3756 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3757 if (!new_qos_map)
3758 return -ENOMEM;
3759 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3760 } else {
3761 /* A NULL qos_map was passed to disable QoS mapping */
3762 new_qos_map = NULL;
3763 }
3764
3765 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3766 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3767 if (old_qos_map)
3768 kfree_rcu(old_qos_map, rcu_head);
3769
3770 return 0;
3771 }
3772
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef)3773 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3774 struct net_device *dev,
3775 struct cfg80211_chan_def *chandef)
3776 {
3777 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3778 int ret;
3779 u32 changed = 0;
3780
3781 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3782 if (ret == 0)
3783 ieee80211_bss_info_change_notify(sdata, changed);
3784
3785 return ret;
3786 }
3787
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)3788 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3789 u8 tsid, const u8 *peer, u8 up,
3790 u16 admitted_time)
3791 {
3792 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3793 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3794 int ac = ieee802_1d_to_ac[up];
3795
3796 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3797 return -EOPNOTSUPP;
3798
3799 if (!(sdata->wmm_acm & BIT(up)))
3800 return -EINVAL;
3801
3802 if (ifmgd->tx_tspec[ac].admitted_time)
3803 return -EBUSY;
3804
3805 if (admitted_time) {
3806 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3807 ifmgd->tx_tspec[ac].tsid = tsid;
3808 ifmgd->tx_tspec[ac].up = up;
3809 }
3810
3811 return 0;
3812 }
3813
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)3814 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3815 u8 tsid, const u8 *peer)
3816 {
3817 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3818 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3819 struct ieee80211_local *local = wiphy_priv(wiphy);
3820 int ac;
3821
3822 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3823 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3824
3825 /* skip unused entries */
3826 if (!tx_tspec->admitted_time)
3827 continue;
3828
3829 if (tx_tspec->tsid != tsid)
3830 continue;
3831
3832 /* due to this new packets will be reassigned to non-ACM ACs */
3833 tx_tspec->up = -1;
3834
3835 /* Make sure that all packets have been sent to avoid to
3836 * restore the QoS params on packets that are still on the
3837 * queues.
3838 */
3839 synchronize_net();
3840 ieee80211_flush_queues(local, sdata, false);
3841
3842 /* restore the normal QoS parameters
3843 * (unconditionally to avoid races)
3844 */
3845 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3846 tx_tspec->downgraded = false;
3847 ieee80211_sta_handle_tspec_ac_params(sdata);
3848
3849 /* finally clear all the data */
3850 memset(tx_tspec, 0, sizeof(*tx_tspec));
3851
3852 return 0;
3853 }
3854
3855 return -ENOENT;
3856 }
3857
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)3858 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3859 u8 inst_id,
3860 enum nl80211_nan_func_term_reason reason,
3861 gfp_t gfp)
3862 {
3863 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3864 struct cfg80211_nan_func *func;
3865 u64 cookie;
3866
3867 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3868 return;
3869
3870 spin_lock_bh(&sdata->u.nan.func_lock);
3871
3872 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3873 if (WARN_ON(!func)) {
3874 spin_unlock_bh(&sdata->u.nan.func_lock);
3875 return;
3876 }
3877
3878 cookie = func->cookie;
3879 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3880
3881 spin_unlock_bh(&sdata->u.nan.func_lock);
3882
3883 cfg80211_free_nan_func(func);
3884
3885 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3886 reason, cookie, gfp);
3887 }
3888 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3889
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)3890 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3891 struct cfg80211_nan_match_params *match,
3892 gfp_t gfp)
3893 {
3894 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3895 struct cfg80211_nan_func *func;
3896
3897 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3898 return;
3899
3900 spin_lock_bh(&sdata->u.nan.func_lock);
3901
3902 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3903 if (WARN_ON(!func)) {
3904 spin_unlock_bh(&sdata->u.nan.func_lock);
3905 return;
3906 }
3907 match->cookie = func->cookie;
3908
3909 spin_unlock_bh(&sdata->u.nan.func_lock);
3910
3911 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3912 }
3913 EXPORT_SYMBOL(ieee80211_nan_func_match);
3914
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)3915 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3916 struct net_device *dev,
3917 const bool enabled)
3918 {
3919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3920
3921 sdata->u.ap.multicast_to_unicast = enabled;
3922
3923 return 0;
3924 }
3925
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)3926 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3927 struct txq_info *txqi)
3928 {
3929 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3930 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3931 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3932 }
3933
3934 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3935 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3936 txqstats->backlog_packets = txqi->tin.backlog_packets;
3937 }
3938
3939 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3940 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3941 txqstats->flows = txqi->tin.flows;
3942 }
3943
3944 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3945 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3946 txqstats->drops = txqi->cstats.drop_count;
3947 }
3948
3949 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3950 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3951 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3952 }
3953
3954 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3955 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3956 txqstats->overlimit = txqi->tin.overlimit;
3957 }
3958
3959 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3960 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3961 txqstats->collisions = txqi->tin.collisions;
3962 }
3963
3964 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3965 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3966 txqstats->tx_bytes = txqi->tin.tx_bytes;
3967 }
3968
3969 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3970 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3971 txqstats->tx_packets = txqi->tin.tx_packets;
3972 }
3973 }
3974
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)3975 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3976 struct wireless_dev *wdev,
3977 struct cfg80211_txq_stats *txqstats)
3978 {
3979 struct ieee80211_local *local = wiphy_priv(wiphy);
3980 struct ieee80211_sub_if_data *sdata;
3981 int ret = 0;
3982
3983 if (!local->ops->wake_tx_queue)
3984 return 1;
3985
3986 spin_lock_bh(&local->fq.lock);
3987 rcu_read_lock();
3988
3989 if (wdev) {
3990 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3991 if (!sdata->vif.txq) {
3992 ret = 1;
3993 goto out;
3994 }
3995 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3996 } else {
3997 /* phy stats */
3998 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3999 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4000 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4001 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4002 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4003 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4004 txqstats->backlog_packets = local->fq.backlog;
4005 txqstats->backlog_bytes = local->fq.memory_usage;
4006 txqstats->overlimit = local->fq.overlimit;
4007 txqstats->overmemory = local->fq.overmemory;
4008 txqstats->collisions = local->fq.collisions;
4009 txqstats->max_flows = local->fq.flows_cnt;
4010 }
4011
4012 out:
4013 rcu_read_unlock();
4014 spin_unlock_bh(&local->fq.lock);
4015
4016 return ret;
4017 }
4018
4019 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4020 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4021 struct net_device *dev,
4022 struct cfg80211_ftm_responder_stats *ftm_stats)
4023 {
4024 struct ieee80211_local *local = wiphy_priv(wiphy);
4025 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4026
4027 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4028 }
4029
4030 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4031 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4032 struct cfg80211_pmsr_request *request)
4033 {
4034 struct ieee80211_local *local = wiphy_priv(wiphy);
4035 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4036
4037 return drv_start_pmsr(local, sdata, request);
4038 }
4039
4040 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4041 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4042 struct cfg80211_pmsr_request *request)
4043 {
4044 struct ieee80211_local *local = wiphy_priv(wiphy);
4045 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4046
4047 return drv_abort_pmsr(local, sdata, request);
4048 }
4049
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4050 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4051 struct net_device *dev,
4052 struct cfg80211_tid_config *tid_conf)
4053 {
4054 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4055 struct sta_info *sta;
4056 int ret;
4057
4058 if (!sdata->local->ops->set_tid_config)
4059 return -EOPNOTSUPP;
4060
4061 if (!tid_conf->peer)
4062 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4063
4064 mutex_lock(&sdata->local->sta_mtx);
4065 sta = sta_info_get_bss(sdata, tid_conf->peer);
4066 if (!sta) {
4067 mutex_unlock(&sdata->local->sta_mtx);
4068 return -ENOENT;
4069 }
4070
4071 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4072 mutex_unlock(&sdata->local->sta_mtx);
4073
4074 return ret;
4075 }
4076
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4077 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4078 struct net_device *dev,
4079 const u8 *peer, u8 tids)
4080 {
4081 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4082 struct sta_info *sta;
4083 int ret;
4084
4085 if (!sdata->local->ops->reset_tid_config)
4086 return -EOPNOTSUPP;
4087
4088 if (!peer)
4089 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4090
4091 mutex_lock(&sdata->local->sta_mtx);
4092 sta = sta_info_get_bss(sdata, peer);
4093 if (!sta) {
4094 mutex_unlock(&sdata->local->sta_mtx);
4095 return -ENOENT;
4096 }
4097
4098 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4099 mutex_unlock(&sdata->local->sta_mtx);
4100
4101 return ret;
4102 }
4103
4104 const struct cfg80211_ops mac80211_config_ops = {
4105 .add_virtual_intf = ieee80211_add_iface,
4106 .del_virtual_intf = ieee80211_del_iface,
4107 .change_virtual_intf = ieee80211_change_iface,
4108 .start_p2p_device = ieee80211_start_p2p_device,
4109 .stop_p2p_device = ieee80211_stop_p2p_device,
4110 .add_key = ieee80211_add_key,
4111 .del_key = ieee80211_del_key,
4112 .get_key = ieee80211_get_key,
4113 .set_default_key = ieee80211_config_default_key,
4114 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4115 .set_default_beacon_key = ieee80211_config_default_beacon_key,
4116 .start_ap = ieee80211_start_ap,
4117 .change_beacon = ieee80211_change_beacon,
4118 .stop_ap = ieee80211_stop_ap,
4119 .add_station = ieee80211_add_station,
4120 .del_station = ieee80211_del_station,
4121 .change_station = ieee80211_change_station,
4122 .get_station = ieee80211_get_station,
4123 .dump_station = ieee80211_dump_station,
4124 .dump_survey = ieee80211_dump_survey,
4125 #ifdef CONFIG_MAC80211_MESH
4126 .add_mpath = ieee80211_add_mpath,
4127 .del_mpath = ieee80211_del_mpath,
4128 .change_mpath = ieee80211_change_mpath,
4129 .get_mpath = ieee80211_get_mpath,
4130 .dump_mpath = ieee80211_dump_mpath,
4131 .get_mpp = ieee80211_get_mpp,
4132 .dump_mpp = ieee80211_dump_mpp,
4133 .update_mesh_config = ieee80211_update_mesh_config,
4134 .get_mesh_config = ieee80211_get_mesh_config,
4135 .join_mesh = ieee80211_join_mesh,
4136 .leave_mesh = ieee80211_leave_mesh,
4137 #endif
4138 .join_ocb = ieee80211_join_ocb,
4139 .leave_ocb = ieee80211_leave_ocb,
4140 .change_bss = ieee80211_change_bss,
4141 .set_txq_params = ieee80211_set_txq_params,
4142 .set_monitor_channel = ieee80211_set_monitor_channel,
4143 .suspend = ieee80211_suspend,
4144 .resume = ieee80211_resume,
4145 .scan = ieee80211_scan,
4146 .abort_scan = ieee80211_abort_scan,
4147 .sched_scan_start = ieee80211_sched_scan_start,
4148 .sched_scan_stop = ieee80211_sched_scan_stop,
4149 .auth = ieee80211_auth,
4150 .assoc = ieee80211_assoc,
4151 .deauth = ieee80211_deauth,
4152 .disassoc = ieee80211_disassoc,
4153 .join_ibss = ieee80211_join_ibss,
4154 .leave_ibss = ieee80211_leave_ibss,
4155 .set_mcast_rate = ieee80211_set_mcast_rate,
4156 .set_wiphy_params = ieee80211_set_wiphy_params,
4157 .set_tx_power = ieee80211_set_tx_power,
4158 .get_tx_power = ieee80211_get_tx_power,
4159 .set_wds_peer = ieee80211_set_wds_peer,
4160 .rfkill_poll = ieee80211_rfkill_poll,
4161 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4162 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4163 .set_power_mgmt = ieee80211_set_power_mgmt,
4164 .set_bitrate_mask = ieee80211_set_bitrate_mask,
4165 .remain_on_channel = ieee80211_remain_on_channel,
4166 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4167 .mgmt_tx = ieee80211_mgmt_tx,
4168 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4169 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4170 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4171 .update_mgmt_frame_registrations =
4172 ieee80211_update_mgmt_frame_registrations,
4173 .set_antenna = ieee80211_set_antenna,
4174 .get_antenna = ieee80211_get_antenna,
4175 .set_rekey_data = ieee80211_set_rekey_data,
4176 .tdls_oper = ieee80211_tdls_oper,
4177 .tdls_mgmt = ieee80211_tdls_mgmt,
4178 .tdls_channel_switch = ieee80211_tdls_channel_switch,
4179 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4180 .probe_client = ieee80211_probe_client,
4181 .set_noack_map = ieee80211_set_noack_map,
4182 #ifdef CONFIG_PM
4183 .set_wakeup = ieee80211_set_wakeup,
4184 #endif
4185 .get_channel = ieee80211_cfg_get_channel,
4186 .start_radar_detection = ieee80211_start_radar_detection,
4187 .end_cac = ieee80211_end_cac,
4188 .channel_switch = ieee80211_channel_switch,
4189 .set_qos_map = ieee80211_set_qos_map,
4190 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4191 .add_tx_ts = ieee80211_add_tx_ts,
4192 .del_tx_ts = ieee80211_del_tx_ts,
4193 .start_nan = ieee80211_start_nan,
4194 .stop_nan = ieee80211_stop_nan,
4195 .nan_change_conf = ieee80211_nan_change_conf,
4196 .add_nan_func = ieee80211_add_nan_func,
4197 .del_nan_func = ieee80211_del_nan_func,
4198 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4199 .tx_control_port = ieee80211_tx_control_port,
4200 .get_txq_stats = ieee80211_get_txq_stats,
4201 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4202 .start_pmsr = ieee80211_start_pmsr,
4203 .abort_pmsr = ieee80211_abort_pmsr,
4204 .probe_mesh_link = ieee80211_probe_mesh_link,
4205 .set_tid_config = ieee80211_set_tid_config,
4206 .reset_tid_config = ieee80211_reset_tid_config,
4207 };
4208