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 /* KRACK protection, shouldn't happen but just silently accept key */
513 if (err == -EALREADY)
514 err = 0;
515
516 out_unlock:
517 mutex_unlock(&local->sta_mtx);
518
519 return err;
520 }
521
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr)522 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
523 u8 key_idx, bool pairwise, const u8 *mac_addr)
524 {
525 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
526 struct ieee80211_local *local = sdata->local;
527 struct sta_info *sta;
528 struct ieee80211_key *key = NULL;
529 int ret;
530
531 mutex_lock(&local->sta_mtx);
532 mutex_lock(&local->key_mtx);
533
534 if (mac_addr) {
535 ret = -ENOENT;
536
537 sta = sta_info_get_bss(sdata, mac_addr);
538 if (!sta)
539 goto out_unlock;
540
541 if (pairwise)
542 key = key_mtx_dereference(local, sta->ptk[key_idx]);
543 else
544 key = key_mtx_dereference(local, sta->gtk[key_idx]);
545 } else
546 key = key_mtx_dereference(local, sdata->keys[key_idx]);
547
548 if (!key) {
549 ret = -ENOENT;
550 goto out_unlock;
551 }
552
553 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
554
555 ret = 0;
556 out_unlock:
557 mutex_unlock(&local->key_mtx);
558 mutex_unlock(&local->sta_mtx);
559
560 return ret;
561 }
562
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))563 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
564 u8 key_idx, bool pairwise, const u8 *mac_addr,
565 void *cookie,
566 void (*callback)(void *cookie,
567 struct key_params *params))
568 {
569 struct ieee80211_sub_if_data *sdata;
570 struct sta_info *sta = NULL;
571 u8 seq[6] = {0};
572 struct key_params params;
573 struct ieee80211_key *key = NULL;
574 u64 pn64;
575 u32 iv32;
576 u16 iv16;
577 int err = -ENOENT;
578 struct ieee80211_key_seq kseq = {};
579
580 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
581
582 rcu_read_lock();
583
584 if (mac_addr) {
585 sta = sta_info_get_bss(sdata, mac_addr);
586 if (!sta)
587 goto out;
588
589 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
590 key = rcu_dereference(sta->ptk[key_idx]);
591 else if (!pairwise &&
592 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
593 NUM_DEFAULT_BEACON_KEYS)
594 key = rcu_dereference(sta->gtk[key_idx]);
595 } else
596 key = rcu_dereference(sdata->keys[key_idx]);
597
598 if (!key)
599 goto out;
600
601 memset(¶ms, 0, sizeof(params));
602
603 params.cipher = key->conf.cipher;
604
605 switch (key->conf.cipher) {
606 case WLAN_CIPHER_SUITE_TKIP:
607 pn64 = atomic64_read(&key->conf.tx_pn);
608 iv32 = TKIP_PN_TO_IV32(pn64);
609 iv16 = TKIP_PN_TO_IV16(pn64);
610
611 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
612 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
613 drv_get_key_seq(sdata->local, key, &kseq);
614 iv32 = kseq.tkip.iv32;
615 iv16 = kseq.tkip.iv16;
616 }
617
618 seq[0] = iv16 & 0xff;
619 seq[1] = (iv16 >> 8) & 0xff;
620 seq[2] = iv32 & 0xff;
621 seq[3] = (iv32 >> 8) & 0xff;
622 seq[4] = (iv32 >> 16) & 0xff;
623 seq[5] = (iv32 >> 24) & 0xff;
624 params.seq = seq;
625 params.seq_len = 6;
626 break;
627 case WLAN_CIPHER_SUITE_CCMP:
628 case WLAN_CIPHER_SUITE_CCMP_256:
629 case WLAN_CIPHER_SUITE_AES_CMAC:
630 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
631 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
632 offsetof(typeof(kseq), aes_cmac));
633 fallthrough;
634 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
635 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
636 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
637 offsetof(typeof(kseq), aes_gmac));
638 fallthrough;
639 case WLAN_CIPHER_SUITE_GCMP:
640 case WLAN_CIPHER_SUITE_GCMP_256:
641 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
642 offsetof(typeof(kseq), gcmp));
643
644 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
645 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
646 drv_get_key_seq(sdata->local, key, &kseq);
647 memcpy(seq, kseq.ccmp.pn, 6);
648 } else {
649 pn64 = atomic64_read(&key->conf.tx_pn);
650 seq[0] = pn64;
651 seq[1] = pn64 >> 8;
652 seq[2] = pn64 >> 16;
653 seq[3] = pn64 >> 24;
654 seq[4] = pn64 >> 32;
655 seq[5] = pn64 >> 40;
656 }
657 params.seq = seq;
658 params.seq_len = 6;
659 break;
660 default:
661 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
662 break;
663 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
664 break;
665 drv_get_key_seq(sdata->local, key, &kseq);
666 params.seq = kseq.hw.seq;
667 params.seq_len = kseq.hw.seq_len;
668 break;
669 }
670
671 params.key = key->conf.key;
672 params.key_len = key->conf.keylen;
673
674 callback(cookie, ¶ms);
675 err = 0;
676
677 out:
678 rcu_read_unlock();
679 return err;
680 }
681
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool uni,bool multi)682 static int ieee80211_config_default_key(struct wiphy *wiphy,
683 struct net_device *dev,
684 u8 key_idx, bool uni,
685 bool multi)
686 {
687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
688
689 ieee80211_set_default_key(sdata, key_idx, uni, multi);
690
691 return 0;
692 }
693
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)694 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
695 struct net_device *dev,
696 u8 key_idx)
697 {
698 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
699
700 ieee80211_set_default_mgmt_key(sdata, key_idx);
701
702 return 0;
703 }
704
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)705 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
706 struct net_device *dev,
707 u8 key_idx)
708 {
709 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
710
711 ieee80211_set_default_beacon_key(sdata, key_idx);
712
713 return 0;
714 }
715
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)716 void sta_set_rate_info_tx(struct sta_info *sta,
717 const struct ieee80211_tx_rate *rate,
718 struct rate_info *rinfo)
719 {
720 rinfo->flags = 0;
721 if (rate->flags & IEEE80211_TX_RC_MCS) {
722 rinfo->flags |= RATE_INFO_FLAGS_MCS;
723 rinfo->mcs = rate->idx;
724 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
725 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
726 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
727 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
728 } else {
729 struct ieee80211_supported_band *sband;
730 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
731 u16 brate;
732
733 sband = ieee80211_get_sband(sta->sdata);
734 WARN_ON_ONCE(sband && !sband->bitrates);
735 if (sband && sband->bitrates) {
736 brate = sband->bitrates[rate->idx].bitrate;
737 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
738 }
739 }
740 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
741 rinfo->bw = RATE_INFO_BW_40;
742 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
743 rinfo->bw = RATE_INFO_BW_80;
744 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
745 rinfo->bw = RATE_INFO_BW_160;
746 else
747 rinfo->bw = RATE_INFO_BW_20;
748 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
749 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
750 }
751
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)752 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
753 int idx, u8 *mac, struct station_info *sinfo)
754 {
755 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
756 struct ieee80211_local *local = sdata->local;
757 struct sta_info *sta;
758 int ret = -ENOENT;
759
760 mutex_lock(&local->sta_mtx);
761
762 sta = sta_info_get_by_idx(sdata, idx);
763 if (sta) {
764 ret = 0;
765 memcpy(mac, sta->sta.addr, ETH_ALEN);
766 sta_set_sinfo(sta, sinfo, true);
767 }
768
769 mutex_unlock(&local->sta_mtx);
770
771 return ret;
772 }
773
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)774 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
775 int idx, struct survey_info *survey)
776 {
777 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
778
779 return drv_get_survey(local, idx, survey);
780 }
781
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)782 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
783 const u8 *mac, struct station_info *sinfo)
784 {
785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
786 struct ieee80211_local *local = sdata->local;
787 struct sta_info *sta;
788 int ret = -ENOENT;
789
790 mutex_lock(&local->sta_mtx);
791
792 sta = sta_info_get_bss(sdata, mac);
793 if (sta) {
794 ret = 0;
795 sta_set_sinfo(sta, sinfo, true);
796 }
797
798 mutex_unlock(&local->sta_mtx);
799
800 return ret;
801 }
802
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)803 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
804 struct cfg80211_chan_def *chandef)
805 {
806 struct ieee80211_local *local = wiphy_priv(wiphy);
807 struct ieee80211_sub_if_data *sdata;
808 int ret = 0;
809
810 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
811 return 0;
812
813 mutex_lock(&local->mtx);
814 if (local->use_chanctx) {
815 sdata = rtnl_dereference(local->monitor_sdata);
816 if (sdata) {
817 ieee80211_vif_release_channel(sdata);
818 ret = ieee80211_vif_use_channel(sdata, chandef,
819 IEEE80211_CHANCTX_EXCLUSIVE);
820 }
821 } else if (local->open_count == local->monitors) {
822 local->_oper_chandef = *chandef;
823 ieee80211_hw_config(local, 0);
824 }
825
826 if (ret == 0)
827 local->monitor_chandef = *chandef;
828 mutex_unlock(&local->mtx);
829
830 return ret;
831 }
832
ieee80211_set_probe_resp(struct ieee80211_sub_if_data * sdata,const u8 * resp,size_t resp_len,const struct ieee80211_csa_settings * csa)833 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
834 const u8 *resp, size_t resp_len,
835 const struct ieee80211_csa_settings *csa)
836 {
837 struct probe_resp *new, *old;
838
839 if (!resp || !resp_len)
840 return 1;
841
842 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
843
844 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
845 if (!new)
846 return -ENOMEM;
847
848 new->len = resp_len;
849 memcpy(new->data, resp, resp_len);
850
851 if (csa)
852 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
853 csa->n_counter_offsets_presp *
854 sizeof(new->cntdwn_counter_offsets[0]));
855
856 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
857 if (old)
858 kfree_rcu(old, rcu_head);
859
860 return 0;
861 }
862
ieee80211_set_fils_discovery(struct ieee80211_sub_if_data * sdata,struct cfg80211_fils_discovery * params)863 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
864 struct cfg80211_fils_discovery *params)
865 {
866 struct fils_discovery_data *new, *old = NULL;
867 struct ieee80211_fils_discovery *fd;
868
869 if (!params->tmpl || !params->tmpl_len)
870 return -EINVAL;
871
872 fd = &sdata->vif.bss_conf.fils_discovery;
873 fd->min_interval = params->min_interval;
874 fd->max_interval = params->max_interval;
875
876 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
877 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
878 if (!new)
879 return -ENOMEM;
880 new->len = params->tmpl_len;
881 memcpy(new->data, params->tmpl, params->tmpl_len);
882 rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
883
884 if (old)
885 kfree_rcu(old, rcu_head);
886
887 return 0;
888 }
889
890 static int
ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data * sdata,struct cfg80211_unsol_bcast_probe_resp * params)891 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
892 struct cfg80211_unsol_bcast_probe_resp *params)
893 {
894 struct unsol_bcast_probe_resp_data *new, *old = NULL;
895
896 if (!params->tmpl || !params->tmpl_len)
897 return -EINVAL;
898
899 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
900 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
901 if (!new)
902 return -ENOMEM;
903 new->len = params->tmpl_len;
904 memcpy(new->data, params->tmpl, params->tmpl_len);
905 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
906
907 if (old)
908 kfree_rcu(old, rcu_head);
909
910 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
911 params->interval;
912
913 return 0;
914 }
915
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)916 static int ieee80211_set_ftm_responder_params(
917 struct ieee80211_sub_if_data *sdata,
918 const u8 *lci, size_t lci_len,
919 const u8 *civicloc, size_t civicloc_len)
920 {
921 struct ieee80211_ftm_responder_params *new, *old;
922 struct ieee80211_bss_conf *bss_conf;
923 u8 *pos;
924 int len;
925
926 if (!lci_len && !civicloc_len)
927 return 0;
928
929 bss_conf = &sdata->vif.bss_conf;
930 old = bss_conf->ftmr_params;
931 len = lci_len + civicloc_len;
932
933 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
934 if (!new)
935 return -ENOMEM;
936
937 pos = (u8 *)(new + 1);
938 if (lci_len) {
939 new->lci_len = lci_len;
940 new->lci = pos;
941 memcpy(pos, lci, lci_len);
942 pos += lci_len;
943 }
944
945 if (civicloc_len) {
946 new->civicloc_len = civicloc_len;
947 new->civicloc = pos;
948 memcpy(pos, civicloc, civicloc_len);
949 pos += civicloc_len;
950 }
951
952 bss_conf->ftmr_params = new;
953 kfree(old);
954
955 return 0;
956 }
957
ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa)958 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
959 struct cfg80211_beacon_data *params,
960 const struct ieee80211_csa_settings *csa)
961 {
962 struct beacon_data *new, *old;
963 int new_head_len, new_tail_len;
964 int size, err;
965 u32 changed = BSS_CHANGED_BEACON;
966
967 old = sdata_dereference(sdata->u.ap.beacon, sdata);
968
969
970 /* Need to have a beacon head if we don't have one yet */
971 if (!params->head && !old)
972 return -EINVAL;
973
974 /* new or old head? */
975 if (params->head)
976 new_head_len = params->head_len;
977 else
978 new_head_len = old->head_len;
979
980 /* new or old tail? */
981 if (params->tail || !old)
982 /* params->tail_len will be zero for !params->tail */
983 new_tail_len = params->tail_len;
984 else
985 new_tail_len = old->tail_len;
986
987 size = sizeof(*new) + new_head_len + new_tail_len;
988
989 new = kzalloc(size, GFP_KERNEL);
990 if (!new)
991 return -ENOMEM;
992
993 /* start filling the new info now */
994
995 /*
996 * pointers go into the block we allocated,
997 * memory is | beacon_data | head | tail |
998 */
999 new->head = ((u8 *) new) + sizeof(*new);
1000 new->tail = new->head + new_head_len;
1001 new->head_len = new_head_len;
1002 new->tail_len = new_tail_len;
1003
1004 if (csa) {
1005 new->cntdwn_current_counter = csa->count;
1006 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1007 csa->n_counter_offsets_beacon *
1008 sizeof(new->cntdwn_counter_offsets[0]));
1009 }
1010
1011 /* copy in head */
1012 if (params->head)
1013 memcpy(new->head, params->head, new_head_len);
1014 else
1015 memcpy(new->head, old->head, new_head_len);
1016
1017 /* copy in optional tail */
1018 if (params->tail)
1019 memcpy(new->tail, params->tail, new_tail_len);
1020 else
1021 if (old)
1022 memcpy(new->tail, old->tail, new_tail_len);
1023
1024 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1025 params->probe_resp_len, csa);
1026 if (err < 0) {
1027 kfree(new);
1028 return err;
1029 }
1030 if (err == 0)
1031 changed |= BSS_CHANGED_AP_PROBE_RESP;
1032
1033 if (params->ftm_responder != -1) {
1034 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1035 err = ieee80211_set_ftm_responder_params(sdata,
1036 params->lci,
1037 params->lci_len,
1038 params->civicloc,
1039 params->civicloc_len);
1040
1041 if (err < 0) {
1042 kfree(new);
1043 return err;
1044 }
1045
1046 changed |= BSS_CHANGED_FTM_RESPONDER;
1047 }
1048
1049 rcu_assign_pointer(sdata->u.ap.beacon, new);
1050
1051 if (old)
1052 kfree_rcu(old, rcu_head);
1053
1054 return changed;
1055 }
1056
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1057 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1058 struct cfg80211_ap_settings *params)
1059 {
1060 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1061 struct ieee80211_local *local = sdata->local;
1062 struct beacon_data *old;
1063 struct ieee80211_sub_if_data *vlan;
1064 u32 changed = BSS_CHANGED_BEACON_INT |
1065 BSS_CHANGED_BEACON_ENABLED |
1066 BSS_CHANGED_BEACON |
1067 BSS_CHANGED_SSID |
1068 BSS_CHANGED_P2P_PS |
1069 BSS_CHANGED_TXPOWER |
1070 BSS_CHANGED_TWT;
1071 int i, err;
1072 int prev_beacon_int;
1073
1074 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1075 if (old)
1076 return -EALREADY;
1077
1078 if (params->smps_mode != NL80211_SMPS_OFF)
1079 return -ENOTSUPP;
1080
1081 sdata->smps_mode = IEEE80211_SMPS_OFF;
1082
1083 sdata->needed_rx_chains = sdata->local->rx_chains;
1084
1085 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1086 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1087
1088 if (params->he_cap && params->he_oper) {
1089 sdata->vif.bss_conf.he_support = true;
1090 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1091 le32_get_bits(params->he_oper->he_oper_params,
1092 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1093 sdata->vif.bss_conf.frame_time_rts_th =
1094 le32_get_bits(params->he_oper->he_oper_params,
1095 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1096 changed |= BSS_CHANGED_HE_OBSS_PD;
1097
1098 if (params->he_bss_color.enabled)
1099 changed |= BSS_CHANGED_HE_BSS_COLOR;
1100 }
1101
1102 mutex_lock(&local->mtx);
1103 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
1104 IEEE80211_CHANCTX_SHARED);
1105 if (!err)
1106 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1107 mutex_unlock(&local->mtx);
1108 if (err) {
1109 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1110 return err;
1111 }
1112
1113 /*
1114 * Apply control port protocol, this allows us to
1115 * not encrypt dynamic WEP control frames.
1116 */
1117 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1118 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1119 sdata->control_port_over_nl80211 =
1120 params->crypto.control_port_over_nl80211;
1121 sdata->control_port_no_preauth =
1122 params->crypto.control_port_no_preauth;
1123 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1124 ¶ms->crypto,
1125 sdata->vif.type);
1126
1127 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1128 vlan->control_port_protocol =
1129 params->crypto.control_port_ethertype;
1130 vlan->control_port_no_encrypt =
1131 params->crypto.control_port_no_encrypt;
1132 vlan->control_port_over_nl80211 =
1133 params->crypto.control_port_over_nl80211;
1134 vlan->control_port_no_preauth =
1135 params->crypto.control_port_no_preauth;
1136 vlan->encrypt_headroom =
1137 ieee80211_cs_headroom(sdata->local,
1138 ¶ms->crypto,
1139 vlan->vif.type);
1140 }
1141
1142 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1143 sdata->vif.bss_conf.enable_beacon = true;
1144 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1145 sdata->vif.bss_conf.twt_responder = params->twt_responder;
1146 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd,
1147 sizeof(struct ieee80211_he_obss_pd));
1148 memcpy(&sdata->vif.bss_conf.he_bss_color, ¶ms->he_bss_color,
1149 sizeof(struct ieee80211_he_bss_color));
1150 sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1151 NL80211_BAND_S1GHZ;
1152
1153 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1154 if (params->ssid_len)
1155 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1156 params->ssid_len);
1157 sdata->vif.bss_conf.hidden_ssid =
1158 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1159
1160 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1161 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1162 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1163 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1164 if (params->p2p_opp_ps)
1165 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1166 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1167
1168 sdata->beacon_rate_set = false;
1169 if (wiphy_ext_feature_isset(local->hw.wiphy,
1170 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1171 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1172 sdata->beacon_rateidx_mask[i] =
1173 params->beacon_rate.control[i].legacy;
1174 if (sdata->beacon_rateidx_mask[i])
1175 sdata->beacon_rate_set = true;
1176 }
1177 }
1178
1179 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1180 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1181
1182 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL);
1183 if (err < 0)
1184 goto error;
1185 changed |= err;
1186
1187 if (params->fils_discovery.max_interval) {
1188 err = ieee80211_set_fils_discovery(sdata,
1189 ¶ms->fils_discovery);
1190 if (err < 0)
1191 goto error;
1192 changed |= BSS_CHANGED_FILS_DISCOVERY;
1193 }
1194
1195 if (params->unsol_bcast_probe_resp.interval) {
1196 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1197 ¶ms->unsol_bcast_probe_resp);
1198 if (err < 0)
1199 goto error;
1200 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1201 }
1202
1203 err = drv_start_ap(sdata->local, sdata);
1204 if (err) {
1205 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1206
1207 if (old)
1208 kfree_rcu(old, rcu_head);
1209 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1210 goto error;
1211 }
1212
1213 ieee80211_recalc_dtim(local, sdata);
1214 ieee80211_bss_info_change_notify(sdata, changed);
1215
1216 netif_carrier_on(dev);
1217 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1218 netif_carrier_on(vlan->dev);
1219
1220 return 0;
1221
1222 error:
1223 mutex_lock(&local->mtx);
1224 ieee80211_vif_release_channel(sdata);
1225 mutex_unlock(&local->mtx);
1226
1227 return err;
1228 }
1229
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * params)1230 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1231 struct cfg80211_beacon_data *params)
1232 {
1233 struct ieee80211_sub_if_data *sdata;
1234 struct beacon_data *old;
1235 int err;
1236
1237 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1238 sdata_assert_lock(sdata);
1239
1240 /* don't allow changing the beacon while CSA is in place - offset
1241 * of channel switch counter may change
1242 */
1243 if (sdata->vif.csa_active)
1244 return -EBUSY;
1245
1246 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1247 if (!old)
1248 return -ENOENT;
1249
1250 err = ieee80211_assign_beacon(sdata, params, NULL);
1251 if (err < 0)
1252 return err;
1253 ieee80211_bss_info_change_notify(sdata, err);
1254 return 0;
1255 }
1256
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev)1257 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1258 {
1259 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1260 struct ieee80211_sub_if_data *vlan;
1261 struct ieee80211_local *local = sdata->local;
1262 struct beacon_data *old_beacon;
1263 struct probe_resp *old_probe_resp;
1264 struct fils_discovery_data *old_fils_discovery;
1265 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1266 struct cfg80211_chan_def chandef;
1267
1268 sdata_assert_lock(sdata);
1269
1270 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1271 if (!old_beacon)
1272 return -ENOENT;
1273 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1274 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1275 sdata);
1276 old_unsol_bcast_probe_resp =
1277 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1278 sdata);
1279
1280 /* abort any running channel switch */
1281 mutex_lock(&local->mtx);
1282 sdata->vif.csa_active = false;
1283 if (sdata->csa_block_tx) {
1284 ieee80211_wake_vif_queues(local, sdata,
1285 IEEE80211_QUEUE_STOP_REASON_CSA);
1286 sdata->csa_block_tx = false;
1287 }
1288
1289 mutex_unlock(&local->mtx);
1290
1291 kfree(sdata->u.ap.next_beacon);
1292 sdata->u.ap.next_beacon = NULL;
1293
1294 /* turn off carrier for this interface and dependent VLANs */
1295 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1296 netif_carrier_off(vlan->dev);
1297 netif_carrier_off(dev);
1298
1299 /* remove beacon and probe response */
1300 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1301 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1302 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1303 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1304 kfree_rcu(old_beacon, rcu_head);
1305 if (old_probe_resp)
1306 kfree_rcu(old_probe_resp, rcu_head);
1307 if (old_fils_discovery)
1308 kfree_rcu(old_fils_discovery, rcu_head);
1309 if (old_unsol_bcast_probe_resp)
1310 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1311
1312 kfree(sdata->vif.bss_conf.ftmr_params);
1313 sdata->vif.bss_conf.ftmr_params = NULL;
1314
1315 __sta_info_flush(sdata, true);
1316 ieee80211_free_keys(sdata, true);
1317
1318 sdata->vif.bss_conf.enable_beacon = false;
1319 sdata->beacon_rate_set = false;
1320 sdata->vif.bss_conf.ssid_len = 0;
1321 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1322 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1323
1324 if (sdata->wdev.cac_started) {
1325 chandef = sdata->vif.bss_conf.chandef;
1326 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1327 cfg80211_cac_event(sdata->dev, &chandef,
1328 NL80211_RADAR_CAC_ABORTED,
1329 GFP_KERNEL);
1330 }
1331
1332 drv_stop_ap(sdata->local, sdata);
1333
1334 /* free all potentially still buffered bcast frames */
1335 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1336 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1337
1338 mutex_lock(&local->mtx);
1339 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1340 ieee80211_vif_release_channel(sdata);
1341 mutex_unlock(&local->mtx);
1342
1343 return 0;
1344 }
1345
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1346 static int sta_apply_auth_flags(struct ieee80211_local *local,
1347 struct sta_info *sta,
1348 u32 mask, u32 set)
1349 {
1350 int ret;
1351
1352 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1353 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1354 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1355 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1356 if (ret)
1357 return ret;
1358 }
1359
1360 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1361 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1362 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1363 /*
1364 * When peer becomes associated, init rate control as
1365 * well. Some drivers require rate control initialized
1366 * before drv_sta_state() is called.
1367 */
1368 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1369 rate_control_rate_init(sta);
1370
1371 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1372 if (ret)
1373 return ret;
1374 }
1375
1376 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1377 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1378 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1379 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1380 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1381 else
1382 ret = 0;
1383 if (ret)
1384 return ret;
1385 }
1386
1387 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1388 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1389 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1390 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1391 if (ret)
1392 return ret;
1393 }
1394
1395 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1396 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1397 test_sta_flag(sta, WLAN_STA_AUTH)) {
1398 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1399 if (ret)
1400 return ret;
1401 }
1402
1403 return 0;
1404 }
1405
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1406 static void sta_apply_mesh_params(struct ieee80211_local *local,
1407 struct sta_info *sta,
1408 struct station_parameters *params)
1409 {
1410 #ifdef CONFIG_MAC80211_MESH
1411 struct ieee80211_sub_if_data *sdata = sta->sdata;
1412 u32 changed = 0;
1413
1414 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1415 switch (params->plink_state) {
1416 case NL80211_PLINK_ESTAB:
1417 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1418 changed = mesh_plink_inc_estab_count(sdata);
1419 sta->mesh->plink_state = params->plink_state;
1420 sta->mesh->aid = params->peer_aid;
1421
1422 ieee80211_mps_sta_status_update(sta);
1423 changed |= ieee80211_mps_set_sta_local_pm(sta,
1424 sdata->u.mesh.mshcfg.power_mode);
1425
1426 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1427 /* init at low value */
1428 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1429
1430 break;
1431 case NL80211_PLINK_LISTEN:
1432 case NL80211_PLINK_BLOCKED:
1433 case NL80211_PLINK_OPN_SNT:
1434 case NL80211_PLINK_OPN_RCVD:
1435 case NL80211_PLINK_CNF_RCVD:
1436 case NL80211_PLINK_HOLDING:
1437 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1438 changed = mesh_plink_dec_estab_count(sdata);
1439 sta->mesh->plink_state = params->plink_state;
1440
1441 ieee80211_mps_sta_status_update(sta);
1442 changed |= ieee80211_mps_set_sta_local_pm(sta,
1443 NL80211_MESH_POWER_UNKNOWN);
1444 break;
1445 default:
1446 /* nothing */
1447 break;
1448 }
1449 }
1450
1451 switch (params->plink_action) {
1452 case NL80211_PLINK_ACTION_NO_ACTION:
1453 /* nothing */
1454 break;
1455 case NL80211_PLINK_ACTION_OPEN:
1456 changed |= mesh_plink_open(sta);
1457 break;
1458 case NL80211_PLINK_ACTION_BLOCK:
1459 changed |= mesh_plink_block(sta);
1460 break;
1461 }
1462
1463 if (params->local_pm)
1464 changed |= ieee80211_mps_set_sta_local_pm(sta,
1465 params->local_pm);
1466
1467 ieee80211_mbss_info_change_notify(sdata, changed);
1468 #endif
1469 }
1470
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1471 static int sta_apply_parameters(struct ieee80211_local *local,
1472 struct sta_info *sta,
1473 struct station_parameters *params)
1474 {
1475 int ret = 0;
1476 struct ieee80211_supported_band *sband;
1477 struct ieee80211_sub_if_data *sdata = sta->sdata;
1478 u32 mask, set;
1479
1480 sband = ieee80211_get_sband(sdata);
1481 if (!sband)
1482 return -EINVAL;
1483
1484 mask = params->sta_flags_mask;
1485 set = params->sta_flags_set;
1486
1487 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1488 /*
1489 * In mesh mode, ASSOCIATED isn't part of the nl80211
1490 * API but must follow AUTHENTICATED for driver state.
1491 */
1492 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1493 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1494 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1495 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1496 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1497 /*
1498 * TDLS -- everything follows authorized, but
1499 * only becoming authorized is possible, not
1500 * going back
1501 */
1502 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1503 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1504 BIT(NL80211_STA_FLAG_ASSOCIATED);
1505 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1506 BIT(NL80211_STA_FLAG_ASSOCIATED);
1507 }
1508 }
1509
1510 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1511 local->hw.queues >= IEEE80211_NUM_ACS)
1512 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1513
1514 /* auth flags will be set later for TDLS,
1515 * and for unassociated stations that move to assocaited */
1516 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1517 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1518 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1519 ret = sta_apply_auth_flags(local, sta, mask, set);
1520 if (ret)
1521 return ret;
1522 }
1523
1524 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1525 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1526 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1527 else
1528 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1529 }
1530
1531 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1532 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1533 if (set & BIT(NL80211_STA_FLAG_MFP))
1534 set_sta_flag(sta, WLAN_STA_MFP);
1535 else
1536 clear_sta_flag(sta, WLAN_STA_MFP);
1537 }
1538
1539 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1540 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1541 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1542 else
1543 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1544 }
1545
1546 /* mark TDLS channel switch support, if the AP allows it */
1547 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1548 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1549 params->ext_capab_len >= 4 &&
1550 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1551 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1552
1553 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1554 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1555 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1556 params->ext_capab_len >= 8 &&
1557 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1558 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1559
1560 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1561 sta->sta.uapsd_queues = params->uapsd_queues;
1562 sta->sta.max_sp = params->max_sp;
1563 }
1564
1565 /* The sender might not have sent the last bit, consider it to be 0 */
1566 if (params->ext_capab_len >= 8) {
1567 u8 val = (params->ext_capab[7] &
1568 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1569
1570 /* we did get all the bits, take the MSB as well */
1571 if (params->ext_capab_len >= 9) {
1572 u8 val_msb = params->ext_capab[8] &
1573 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1574 val_msb <<= 1;
1575 val |= val_msb;
1576 }
1577
1578 switch (val) {
1579 case 1:
1580 sta->sta.max_amsdu_subframes = 32;
1581 break;
1582 case 2:
1583 sta->sta.max_amsdu_subframes = 16;
1584 break;
1585 case 3:
1586 sta->sta.max_amsdu_subframes = 8;
1587 break;
1588 default:
1589 sta->sta.max_amsdu_subframes = 0;
1590 }
1591 }
1592
1593 /*
1594 * cfg80211 validates this (1-2007) and allows setting the AID
1595 * only when creating a new station entry
1596 */
1597 if (params->aid)
1598 sta->sta.aid = params->aid;
1599
1600 /*
1601 * Some of the following updates would be racy if called on an
1602 * existing station, via ieee80211_change_station(). However,
1603 * all such changes are rejected by cfg80211 except for updates
1604 * changing the supported rates on an existing but not yet used
1605 * TDLS peer.
1606 */
1607
1608 if (params->listen_interval >= 0)
1609 sta->listen_interval = params->listen_interval;
1610
1611 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1612 sta->sta.txpwr.type = params->txpwr.type;
1613 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1614 sta->sta.txpwr.power = params->txpwr.power;
1615 ret = drv_sta_set_txpwr(local, sdata, sta);
1616 if (ret)
1617 return ret;
1618 }
1619
1620 if (params->supported_rates && params->supported_rates_len) {
1621 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1622 sband, params->supported_rates,
1623 params->supported_rates_len,
1624 &sta->sta.supp_rates[sband->band]);
1625 }
1626
1627 if (params->ht_capa)
1628 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1629 params->ht_capa, sta);
1630
1631 /* VHT can override some HT caps such as the A-MSDU max length */
1632 if (params->vht_capa)
1633 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1634 params->vht_capa, sta);
1635
1636 if (params->he_capa)
1637 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1638 (void *)params->he_capa,
1639 params->he_capa_len,
1640 (void *)params->he_6ghz_capa,
1641 sta);
1642
1643 if (params->opmode_notif_used) {
1644 /* returned value is only needed for rc update, but the
1645 * rc isn't initialized here yet, so ignore it
1646 */
1647 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1648 sband->band);
1649 }
1650
1651 if (params->support_p2p_ps >= 0)
1652 sta->sta.support_p2p_ps = params->support_p2p_ps;
1653
1654 if (ieee80211_vif_is_mesh(&sdata->vif))
1655 sta_apply_mesh_params(local, sta, params);
1656
1657 if (params->airtime_weight)
1658 sta->airtime_weight = params->airtime_weight;
1659
1660 /* set the STA state after all sta info from usermode has been set */
1661 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1662 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1663 ret = sta_apply_auth_flags(local, sta, mask, set);
1664 if (ret)
1665 return ret;
1666 }
1667
1668 return 0;
1669 }
1670
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1671 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1672 const u8 *mac,
1673 struct station_parameters *params)
1674 {
1675 struct ieee80211_local *local = wiphy_priv(wiphy);
1676 struct sta_info *sta;
1677 struct ieee80211_sub_if_data *sdata;
1678 int err;
1679
1680 if (params->vlan) {
1681 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1682
1683 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1684 sdata->vif.type != NL80211_IFTYPE_AP)
1685 return -EINVAL;
1686 } else
1687 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1688
1689 if (ether_addr_equal(mac, sdata->vif.addr))
1690 return -EINVAL;
1691
1692 if (!is_valid_ether_addr(mac))
1693 return -EINVAL;
1694
1695 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1696 sdata->vif.type == NL80211_IFTYPE_STATION &&
1697 !sdata->u.mgd.associated)
1698 return -EINVAL;
1699
1700 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1701 if (!sta)
1702 return -ENOMEM;
1703
1704 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1705 sta->sta.tdls = true;
1706
1707 err = sta_apply_parameters(local, sta, params);
1708 if (err) {
1709 sta_info_free(local, sta);
1710 return err;
1711 }
1712
1713 /*
1714 * for TDLS and for unassociated station, rate control should be
1715 * initialized only when rates are known and station is marked
1716 * authorized/associated
1717 */
1718 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1719 test_sta_flag(sta, WLAN_STA_ASSOC))
1720 rate_control_rate_init(sta);
1721
1722 err = sta_info_insert_rcu(sta);
1723 if (err) {
1724 rcu_read_unlock();
1725 return err;
1726 }
1727
1728 rcu_read_unlock();
1729
1730 return 0;
1731 }
1732
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1733 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1734 struct station_del_parameters *params)
1735 {
1736 struct ieee80211_sub_if_data *sdata;
1737
1738 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1739
1740 if (params->mac)
1741 return sta_info_destroy_addr_bss(sdata, params->mac);
1742
1743 sta_info_flush(sdata);
1744 return 0;
1745 }
1746
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1747 static int ieee80211_change_station(struct wiphy *wiphy,
1748 struct net_device *dev, const u8 *mac,
1749 struct station_parameters *params)
1750 {
1751 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1752 struct ieee80211_local *local = wiphy_priv(wiphy);
1753 struct sta_info *sta;
1754 struct ieee80211_sub_if_data *vlansdata;
1755 enum cfg80211_station_type statype;
1756 int err;
1757
1758 mutex_lock(&local->sta_mtx);
1759
1760 sta = sta_info_get_bss(sdata, mac);
1761 if (!sta) {
1762 err = -ENOENT;
1763 goto out_err;
1764 }
1765
1766 switch (sdata->vif.type) {
1767 case NL80211_IFTYPE_MESH_POINT:
1768 if (sdata->u.mesh.user_mpm)
1769 statype = CFG80211_STA_MESH_PEER_USER;
1770 else
1771 statype = CFG80211_STA_MESH_PEER_KERNEL;
1772 break;
1773 case NL80211_IFTYPE_ADHOC:
1774 statype = CFG80211_STA_IBSS;
1775 break;
1776 case NL80211_IFTYPE_STATION:
1777 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1778 statype = CFG80211_STA_AP_STA;
1779 break;
1780 }
1781 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1782 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1783 else
1784 statype = CFG80211_STA_TDLS_PEER_SETUP;
1785 break;
1786 case NL80211_IFTYPE_AP:
1787 case NL80211_IFTYPE_AP_VLAN:
1788 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1789 statype = CFG80211_STA_AP_CLIENT;
1790 else
1791 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1792 break;
1793 default:
1794 err = -EOPNOTSUPP;
1795 goto out_err;
1796 }
1797
1798 err = cfg80211_check_station_change(wiphy, params, statype);
1799 if (err)
1800 goto out_err;
1801
1802 if (params->vlan && params->vlan != sta->sdata->dev) {
1803 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1804
1805 if (params->vlan->ieee80211_ptr->use_4addr) {
1806 if (vlansdata->u.vlan.sta) {
1807 err = -EBUSY;
1808 goto out_err;
1809 }
1810
1811 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1812 __ieee80211_check_fast_rx_iface(vlansdata);
1813 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1814 }
1815
1816 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1817 sta->sdata->u.vlan.sta)
1818 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1819
1820 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1821 ieee80211_vif_dec_num_mcast(sta->sdata);
1822
1823 sta->sdata = vlansdata;
1824 ieee80211_check_fast_rx(sta);
1825 ieee80211_check_fast_xmit(sta);
1826
1827 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1828 ieee80211_vif_inc_num_mcast(sta->sdata);
1829 cfg80211_send_layer2_update(sta->sdata->dev,
1830 sta->sta.addr);
1831 }
1832 }
1833
1834 err = sta_apply_parameters(local, sta, params);
1835 if (err)
1836 goto out_err;
1837
1838 mutex_unlock(&local->sta_mtx);
1839
1840 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1841 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1842 ieee80211_recalc_ps(local);
1843 ieee80211_recalc_ps_vif(sdata);
1844 }
1845
1846 return 0;
1847 out_err:
1848 mutex_unlock(&local->sta_mtx);
1849 return err;
1850 }
1851
1852 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1853 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1854 const u8 *dst, const u8 *next_hop)
1855 {
1856 struct ieee80211_sub_if_data *sdata;
1857 struct mesh_path *mpath;
1858 struct sta_info *sta;
1859
1860 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1861
1862 rcu_read_lock();
1863 sta = sta_info_get(sdata, next_hop);
1864 if (!sta) {
1865 rcu_read_unlock();
1866 return -ENOENT;
1867 }
1868
1869 mpath = mesh_path_add(sdata, dst);
1870 if (IS_ERR(mpath)) {
1871 rcu_read_unlock();
1872 return PTR_ERR(mpath);
1873 }
1874
1875 mesh_path_fix_nexthop(mpath, sta);
1876
1877 rcu_read_unlock();
1878 return 0;
1879 }
1880
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)1881 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1882 const u8 *dst)
1883 {
1884 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1885
1886 if (dst)
1887 return mesh_path_del(sdata, dst);
1888
1889 mesh_path_flush_by_iface(sdata);
1890 return 0;
1891 }
1892
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1893 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1894 const u8 *dst, const u8 *next_hop)
1895 {
1896 struct ieee80211_sub_if_data *sdata;
1897 struct mesh_path *mpath;
1898 struct sta_info *sta;
1899
1900 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1901
1902 rcu_read_lock();
1903
1904 sta = sta_info_get(sdata, next_hop);
1905 if (!sta) {
1906 rcu_read_unlock();
1907 return -ENOENT;
1908 }
1909
1910 mpath = mesh_path_lookup(sdata, dst);
1911 if (!mpath) {
1912 rcu_read_unlock();
1913 return -ENOENT;
1914 }
1915
1916 mesh_path_fix_nexthop(mpath, sta);
1917
1918 rcu_read_unlock();
1919 return 0;
1920 }
1921
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)1922 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1923 struct mpath_info *pinfo)
1924 {
1925 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1926
1927 if (next_hop_sta)
1928 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1929 else
1930 eth_zero_addr(next_hop);
1931
1932 memset(pinfo, 0, sizeof(*pinfo));
1933
1934 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1935
1936 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1937 MPATH_INFO_SN |
1938 MPATH_INFO_METRIC |
1939 MPATH_INFO_EXPTIME |
1940 MPATH_INFO_DISCOVERY_TIMEOUT |
1941 MPATH_INFO_DISCOVERY_RETRIES |
1942 MPATH_INFO_FLAGS |
1943 MPATH_INFO_HOP_COUNT |
1944 MPATH_INFO_PATH_CHANGE;
1945
1946 pinfo->frame_qlen = mpath->frame_queue.qlen;
1947 pinfo->sn = mpath->sn;
1948 pinfo->metric = mpath->metric;
1949 if (time_before(jiffies, mpath->exp_time))
1950 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1951 pinfo->discovery_timeout =
1952 jiffies_to_msecs(mpath->discovery_timeout);
1953 pinfo->discovery_retries = mpath->discovery_retries;
1954 if (mpath->flags & MESH_PATH_ACTIVE)
1955 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1956 if (mpath->flags & MESH_PATH_RESOLVING)
1957 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1958 if (mpath->flags & MESH_PATH_SN_VALID)
1959 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1960 if (mpath->flags & MESH_PATH_FIXED)
1961 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1962 if (mpath->flags & MESH_PATH_RESOLVED)
1963 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1964 pinfo->hop_count = mpath->hop_count;
1965 pinfo->path_change_count = mpath->path_change_count;
1966 }
1967
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1968 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1969 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1970
1971 {
1972 struct ieee80211_sub_if_data *sdata;
1973 struct mesh_path *mpath;
1974
1975 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1976
1977 rcu_read_lock();
1978 mpath = mesh_path_lookup(sdata, dst);
1979 if (!mpath) {
1980 rcu_read_unlock();
1981 return -ENOENT;
1982 }
1983 memcpy(dst, mpath->dst, ETH_ALEN);
1984 mpath_set_pinfo(mpath, next_hop, pinfo);
1985 rcu_read_unlock();
1986 return 0;
1987 }
1988
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1989 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1990 int idx, u8 *dst, u8 *next_hop,
1991 struct mpath_info *pinfo)
1992 {
1993 struct ieee80211_sub_if_data *sdata;
1994 struct mesh_path *mpath;
1995
1996 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1997
1998 rcu_read_lock();
1999 mpath = mesh_path_lookup_by_idx(sdata, idx);
2000 if (!mpath) {
2001 rcu_read_unlock();
2002 return -ENOENT;
2003 }
2004 memcpy(dst, mpath->dst, ETH_ALEN);
2005 mpath_set_pinfo(mpath, next_hop, pinfo);
2006 rcu_read_unlock();
2007 return 0;
2008 }
2009
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2010 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2011 struct mpath_info *pinfo)
2012 {
2013 memset(pinfo, 0, sizeof(*pinfo));
2014 memcpy(mpp, mpath->mpp, ETH_ALEN);
2015
2016 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2017 }
2018
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2019 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2020 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2021
2022 {
2023 struct ieee80211_sub_if_data *sdata;
2024 struct mesh_path *mpath;
2025
2026 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2027
2028 rcu_read_lock();
2029 mpath = mpp_path_lookup(sdata, dst);
2030 if (!mpath) {
2031 rcu_read_unlock();
2032 return -ENOENT;
2033 }
2034 memcpy(dst, mpath->dst, ETH_ALEN);
2035 mpp_set_pinfo(mpath, mpp, pinfo);
2036 rcu_read_unlock();
2037 return 0;
2038 }
2039
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2040 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2041 int idx, u8 *dst, u8 *mpp,
2042 struct mpath_info *pinfo)
2043 {
2044 struct ieee80211_sub_if_data *sdata;
2045 struct mesh_path *mpath;
2046
2047 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2048
2049 rcu_read_lock();
2050 mpath = mpp_path_lookup_by_idx(sdata, idx);
2051 if (!mpath) {
2052 rcu_read_unlock();
2053 return -ENOENT;
2054 }
2055 memcpy(dst, mpath->dst, ETH_ALEN);
2056 mpp_set_pinfo(mpath, mpp, pinfo);
2057 rcu_read_unlock();
2058 return 0;
2059 }
2060
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2061 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2062 struct net_device *dev,
2063 struct mesh_config *conf)
2064 {
2065 struct ieee80211_sub_if_data *sdata;
2066 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2067
2068 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2069 return 0;
2070 }
2071
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2072 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2073 {
2074 return (mask >> (parm-1)) & 0x1;
2075 }
2076
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2077 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2078 const struct mesh_setup *setup)
2079 {
2080 u8 *new_ie;
2081 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2082 struct ieee80211_sub_if_data, u.mesh);
2083 int i;
2084
2085 /* allocate information elements */
2086 new_ie = NULL;
2087
2088 if (setup->ie_len) {
2089 new_ie = kmemdup(setup->ie, setup->ie_len,
2090 GFP_KERNEL);
2091 if (!new_ie)
2092 return -ENOMEM;
2093 }
2094 ifmsh->ie_len = setup->ie_len;
2095 ifmsh->ie = new_ie;
2096
2097 /* now copy the rest of the setup parameters */
2098 ifmsh->mesh_id_len = setup->mesh_id_len;
2099 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2100 ifmsh->mesh_sp_id = setup->sync_method;
2101 ifmsh->mesh_pp_id = setup->path_sel_proto;
2102 ifmsh->mesh_pm_id = setup->path_metric;
2103 ifmsh->user_mpm = setup->user_mpm;
2104 ifmsh->mesh_auth_id = setup->auth_id;
2105 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2106 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2107 if (setup->is_authenticated)
2108 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2109 if (setup->is_secure)
2110 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2111
2112 /* mcast rate setting in Mesh Node */
2113 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2114 sizeof(setup->mcast_rate));
2115 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2116
2117 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2118 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2119
2120 sdata->beacon_rate_set = false;
2121 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2122 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2123 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2124 sdata->beacon_rateidx_mask[i] =
2125 setup->beacon_rate.control[i].legacy;
2126 if (sdata->beacon_rateidx_mask[i])
2127 sdata->beacon_rate_set = true;
2128 }
2129 }
2130
2131 return 0;
2132 }
2133
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2134 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2135 struct net_device *dev, u32 mask,
2136 const struct mesh_config *nconf)
2137 {
2138 struct mesh_config *conf;
2139 struct ieee80211_sub_if_data *sdata;
2140 struct ieee80211_if_mesh *ifmsh;
2141
2142 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2143 ifmsh = &sdata->u.mesh;
2144
2145 /* Set the config options which we are interested in setting */
2146 conf = &(sdata->u.mesh.mshcfg);
2147 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2148 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2149 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2150 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2151 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2152 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2153 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2154 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2155 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2156 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2157 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2158 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2159 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2160 conf->element_ttl = nconf->element_ttl;
2161 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2162 if (ifmsh->user_mpm)
2163 return -EBUSY;
2164 conf->auto_open_plinks = nconf->auto_open_plinks;
2165 }
2166 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2167 conf->dot11MeshNbrOffsetMaxNeighbor =
2168 nconf->dot11MeshNbrOffsetMaxNeighbor;
2169 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2170 conf->dot11MeshHWMPmaxPREQretries =
2171 nconf->dot11MeshHWMPmaxPREQretries;
2172 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2173 conf->path_refresh_time = nconf->path_refresh_time;
2174 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2175 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2176 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2177 conf->dot11MeshHWMPactivePathTimeout =
2178 nconf->dot11MeshHWMPactivePathTimeout;
2179 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2180 conf->dot11MeshHWMPpreqMinInterval =
2181 nconf->dot11MeshHWMPpreqMinInterval;
2182 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2183 conf->dot11MeshHWMPperrMinInterval =
2184 nconf->dot11MeshHWMPperrMinInterval;
2185 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2186 mask))
2187 conf->dot11MeshHWMPnetDiameterTraversalTime =
2188 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2189 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2190 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2191 ieee80211_mesh_root_setup(ifmsh);
2192 }
2193 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2194 /* our current gate announcement implementation rides on root
2195 * announcements, so require this ifmsh to also be a root node
2196 * */
2197 if (nconf->dot11MeshGateAnnouncementProtocol &&
2198 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2199 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2200 ieee80211_mesh_root_setup(ifmsh);
2201 }
2202 conf->dot11MeshGateAnnouncementProtocol =
2203 nconf->dot11MeshGateAnnouncementProtocol;
2204 }
2205 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2206 conf->dot11MeshHWMPRannInterval =
2207 nconf->dot11MeshHWMPRannInterval;
2208 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2209 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2210 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2211 /* our RSSI threshold implementation is supported only for
2212 * devices that report signal in dBm.
2213 */
2214 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2215 return -ENOTSUPP;
2216 conf->rssi_threshold = nconf->rssi_threshold;
2217 }
2218 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2219 conf->ht_opmode = nconf->ht_opmode;
2220 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2221 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2222 }
2223 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2224 conf->dot11MeshHWMPactivePathToRootTimeout =
2225 nconf->dot11MeshHWMPactivePathToRootTimeout;
2226 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2227 conf->dot11MeshHWMProotInterval =
2228 nconf->dot11MeshHWMProotInterval;
2229 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2230 conf->dot11MeshHWMPconfirmationInterval =
2231 nconf->dot11MeshHWMPconfirmationInterval;
2232 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2233 conf->power_mode = nconf->power_mode;
2234 ieee80211_mps_local_status_update(sdata);
2235 }
2236 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2237 conf->dot11MeshAwakeWindowDuration =
2238 nconf->dot11MeshAwakeWindowDuration;
2239 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2240 conf->plink_timeout = nconf->plink_timeout;
2241 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2242 conf->dot11MeshConnectedToMeshGate =
2243 nconf->dot11MeshConnectedToMeshGate;
2244 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2245 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2246 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2247 conf->dot11MeshConnectedToAuthServer =
2248 nconf->dot11MeshConnectedToAuthServer;
2249 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2250 return 0;
2251 }
2252
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2253 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2254 const struct mesh_config *conf,
2255 const struct mesh_setup *setup)
2256 {
2257 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2258 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2259 int err;
2260
2261 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2262 err = copy_mesh_setup(ifmsh, setup);
2263 if (err)
2264 return err;
2265
2266 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2267
2268 /* can mesh use other SMPS modes? */
2269 sdata->smps_mode = IEEE80211_SMPS_OFF;
2270 sdata->needed_rx_chains = sdata->local->rx_chains;
2271
2272 mutex_lock(&sdata->local->mtx);
2273 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2274 IEEE80211_CHANCTX_SHARED);
2275 mutex_unlock(&sdata->local->mtx);
2276 if (err)
2277 return err;
2278
2279 return ieee80211_start_mesh(sdata);
2280 }
2281
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2282 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2283 {
2284 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2285
2286 ieee80211_stop_mesh(sdata);
2287 mutex_lock(&sdata->local->mtx);
2288 ieee80211_vif_release_channel(sdata);
2289 kfree(sdata->u.mesh.ie);
2290 mutex_unlock(&sdata->local->mtx);
2291
2292 return 0;
2293 }
2294 #endif
2295
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2296 static int ieee80211_change_bss(struct wiphy *wiphy,
2297 struct net_device *dev,
2298 struct bss_parameters *params)
2299 {
2300 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2301 struct ieee80211_supported_band *sband;
2302 u32 changed = 0;
2303
2304 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2305 return -ENOENT;
2306
2307 sband = ieee80211_get_sband(sdata);
2308 if (!sband)
2309 return -EINVAL;
2310
2311 if (params->use_cts_prot >= 0) {
2312 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2313 changed |= BSS_CHANGED_ERP_CTS_PROT;
2314 }
2315 if (params->use_short_preamble >= 0) {
2316 sdata->vif.bss_conf.use_short_preamble =
2317 params->use_short_preamble;
2318 changed |= BSS_CHANGED_ERP_PREAMBLE;
2319 }
2320
2321 if (!sdata->vif.bss_conf.use_short_slot &&
2322 (sband->band == NL80211_BAND_5GHZ ||
2323 sband->band == NL80211_BAND_6GHZ)) {
2324 sdata->vif.bss_conf.use_short_slot = true;
2325 changed |= BSS_CHANGED_ERP_SLOT;
2326 }
2327
2328 if (params->use_short_slot_time >= 0) {
2329 sdata->vif.bss_conf.use_short_slot =
2330 params->use_short_slot_time;
2331 changed |= BSS_CHANGED_ERP_SLOT;
2332 }
2333
2334 if (params->basic_rates) {
2335 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2336 wiphy->bands[sband->band],
2337 params->basic_rates,
2338 params->basic_rates_len,
2339 &sdata->vif.bss_conf.basic_rates);
2340 changed |= BSS_CHANGED_BASIC_RATES;
2341 ieee80211_check_rate_mask(sdata);
2342 }
2343
2344 if (params->ap_isolate >= 0) {
2345 if (params->ap_isolate)
2346 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2347 else
2348 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2349 ieee80211_check_fast_rx_iface(sdata);
2350 }
2351
2352 if (params->ht_opmode >= 0) {
2353 sdata->vif.bss_conf.ht_operation_mode =
2354 (u16) params->ht_opmode;
2355 changed |= BSS_CHANGED_HT;
2356 }
2357
2358 if (params->p2p_ctwindow >= 0) {
2359 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2360 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2361 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2362 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2363 changed |= BSS_CHANGED_P2P_PS;
2364 }
2365
2366 if (params->p2p_opp_ps > 0) {
2367 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2368 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2369 changed |= BSS_CHANGED_P2P_PS;
2370 } else if (params->p2p_opp_ps == 0) {
2371 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2372 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2373 changed |= BSS_CHANGED_P2P_PS;
2374 }
2375
2376 ieee80211_bss_info_change_notify(sdata, changed);
2377
2378 return 0;
2379 }
2380
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2381 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2382 struct net_device *dev,
2383 struct ieee80211_txq_params *params)
2384 {
2385 struct ieee80211_local *local = wiphy_priv(wiphy);
2386 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2387 struct ieee80211_tx_queue_params p;
2388
2389 if (!local->ops->conf_tx)
2390 return -EOPNOTSUPP;
2391
2392 if (local->hw.queues < IEEE80211_NUM_ACS)
2393 return -EOPNOTSUPP;
2394
2395 memset(&p, 0, sizeof(p));
2396 p.aifs = params->aifs;
2397 p.cw_max = params->cwmax;
2398 p.cw_min = params->cwmin;
2399 p.txop = params->txop;
2400
2401 /*
2402 * Setting tx queue params disables u-apsd because it's only
2403 * called in master mode.
2404 */
2405 p.uapsd = false;
2406
2407 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2408
2409 sdata->tx_conf[params->ac] = p;
2410 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2411 wiphy_debug(local->hw.wiphy,
2412 "failed to set TX queue parameters for AC %d\n",
2413 params->ac);
2414 return -EINVAL;
2415 }
2416
2417 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2418
2419 return 0;
2420 }
2421
2422 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2423 static int ieee80211_suspend(struct wiphy *wiphy,
2424 struct cfg80211_wowlan *wowlan)
2425 {
2426 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2427 }
2428
ieee80211_resume(struct wiphy * wiphy)2429 static int ieee80211_resume(struct wiphy *wiphy)
2430 {
2431 return __ieee80211_resume(wiphy_priv(wiphy));
2432 }
2433 #else
2434 #define ieee80211_suspend NULL
2435 #define ieee80211_resume NULL
2436 #endif
2437
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2438 static int ieee80211_scan(struct wiphy *wiphy,
2439 struct cfg80211_scan_request *req)
2440 {
2441 struct ieee80211_sub_if_data *sdata;
2442
2443 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2444
2445 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2446 case NL80211_IFTYPE_STATION:
2447 case NL80211_IFTYPE_ADHOC:
2448 case NL80211_IFTYPE_MESH_POINT:
2449 case NL80211_IFTYPE_P2P_CLIENT:
2450 case NL80211_IFTYPE_P2P_DEVICE:
2451 break;
2452 case NL80211_IFTYPE_P2P_GO:
2453 if (sdata->local->ops->hw_scan)
2454 break;
2455 /*
2456 * FIXME: implement NoA while scanning in software,
2457 * for now fall through to allow scanning only when
2458 * beaconing hasn't been configured yet
2459 */
2460 fallthrough;
2461 case NL80211_IFTYPE_AP:
2462 /*
2463 * If the scan has been forced (and the driver supports
2464 * forcing), don't care about being beaconing already.
2465 * This will create problems to the attached stations (e.g. all
2466 * the frames sent while scanning on other channel will be
2467 * lost)
2468 */
2469 if (sdata->u.ap.beacon &&
2470 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2471 !(req->flags & NL80211_SCAN_FLAG_AP)))
2472 return -EOPNOTSUPP;
2473 break;
2474 case NL80211_IFTYPE_NAN:
2475 default:
2476 return -EOPNOTSUPP;
2477 }
2478
2479 return ieee80211_request_scan(sdata, req);
2480 }
2481
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2482 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2483 {
2484 ieee80211_scan_cancel(wiphy_priv(wiphy));
2485 }
2486
2487 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2488 ieee80211_sched_scan_start(struct wiphy *wiphy,
2489 struct net_device *dev,
2490 struct cfg80211_sched_scan_request *req)
2491 {
2492 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2493
2494 if (!sdata->local->ops->sched_scan_start)
2495 return -EOPNOTSUPP;
2496
2497 return ieee80211_request_sched_scan_start(sdata, req);
2498 }
2499
2500 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2501 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2502 u64 reqid)
2503 {
2504 struct ieee80211_local *local = wiphy_priv(wiphy);
2505
2506 if (!local->ops->sched_scan_stop)
2507 return -EOPNOTSUPP;
2508
2509 return ieee80211_request_sched_scan_stop(local);
2510 }
2511
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2512 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2513 struct cfg80211_auth_request *req)
2514 {
2515 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2516 }
2517
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2518 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2519 struct cfg80211_assoc_request *req)
2520 {
2521 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2522 }
2523
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2524 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2525 struct cfg80211_deauth_request *req)
2526 {
2527 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2528 }
2529
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2530 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2531 struct cfg80211_disassoc_request *req)
2532 {
2533 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2534 }
2535
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2536 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2537 struct cfg80211_ibss_params *params)
2538 {
2539 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2540 }
2541
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2542 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2543 {
2544 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2545 }
2546
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2547 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2548 struct ocb_setup *setup)
2549 {
2550 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2551 }
2552
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2553 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2554 {
2555 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2556 }
2557
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2558 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2559 int rate[NUM_NL80211_BANDS])
2560 {
2561 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2562
2563 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2564 sizeof(int) * NUM_NL80211_BANDS);
2565
2566 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2567
2568 return 0;
2569 }
2570
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2571 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2572 {
2573 struct ieee80211_local *local = wiphy_priv(wiphy);
2574 int err;
2575
2576 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2577 ieee80211_check_fast_xmit_all(local);
2578
2579 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2580
2581 if (err) {
2582 ieee80211_check_fast_xmit_all(local);
2583 return err;
2584 }
2585 }
2586
2587 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2588 (changed & WIPHY_PARAM_DYN_ACK)) {
2589 s16 coverage_class;
2590
2591 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2592 wiphy->coverage_class : -1;
2593 err = drv_set_coverage_class(local, coverage_class);
2594
2595 if (err)
2596 return err;
2597 }
2598
2599 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2600 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2601
2602 if (err)
2603 return err;
2604 }
2605
2606 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2607 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2608 return -EINVAL;
2609 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2610 }
2611 if (changed & WIPHY_PARAM_RETRY_LONG) {
2612 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2613 return -EINVAL;
2614 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2615 }
2616 if (changed &
2617 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2618 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2619
2620 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2621 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2622 WIPHY_PARAM_TXQ_QUANTUM))
2623 ieee80211_txq_set_params(local);
2624
2625 return 0;
2626 }
2627
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)2628 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2629 struct wireless_dev *wdev,
2630 enum nl80211_tx_power_setting type, int mbm)
2631 {
2632 struct ieee80211_local *local = wiphy_priv(wiphy);
2633 struct ieee80211_sub_if_data *sdata;
2634 enum nl80211_tx_power_setting txp_type = type;
2635 bool update_txp_type = false;
2636 bool has_monitor = false;
2637
2638 if (wdev) {
2639 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2640
2641 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2642 sdata = rtnl_dereference(local->monitor_sdata);
2643 if (!sdata)
2644 return -EOPNOTSUPP;
2645 }
2646
2647 switch (type) {
2648 case NL80211_TX_POWER_AUTOMATIC:
2649 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2650 txp_type = NL80211_TX_POWER_LIMITED;
2651 break;
2652 case NL80211_TX_POWER_LIMITED:
2653 case NL80211_TX_POWER_FIXED:
2654 if (mbm < 0 || (mbm % 100))
2655 return -EOPNOTSUPP;
2656 sdata->user_power_level = MBM_TO_DBM(mbm);
2657 break;
2658 }
2659
2660 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2661 update_txp_type = true;
2662 sdata->vif.bss_conf.txpower_type = txp_type;
2663 }
2664
2665 ieee80211_recalc_txpower(sdata, update_txp_type);
2666
2667 return 0;
2668 }
2669
2670 switch (type) {
2671 case NL80211_TX_POWER_AUTOMATIC:
2672 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2673 txp_type = NL80211_TX_POWER_LIMITED;
2674 break;
2675 case NL80211_TX_POWER_LIMITED:
2676 case NL80211_TX_POWER_FIXED:
2677 if (mbm < 0 || (mbm % 100))
2678 return -EOPNOTSUPP;
2679 local->user_power_level = MBM_TO_DBM(mbm);
2680 break;
2681 }
2682
2683 mutex_lock(&local->iflist_mtx);
2684 list_for_each_entry(sdata, &local->interfaces, list) {
2685 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2686 has_monitor = true;
2687 continue;
2688 }
2689 sdata->user_power_level = local->user_power_level;
2690 if (txp_type != sdata->vif.bss_conf.txpower_type)
2691 update_txp_type = true;
2692 sdata->vif.bss_conf.txpower_type = txp_type;
2693 }
2694 list_for_each_entry(sdata, &local->interfaces, list) {
2695 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2696 continue;
2697 ieee80211_recalc_txpower(sdata, update_txp_type);
2698 }
2699 mutex_unlock(&local->iflist_mtx);
2700
2701 if (has_monitor) {
2702 sdata = rtnl_dereference(local->monitor_sdata);
2703 if (sdata) {
2704 sdata->user_power_level = local->user_power_level;
2705 if (txp_type != sdata->vif.bss_conf.txpower_type)
2706 update_txp_type = true;
2707 sdata->vif.bss_conf.txpower_type = txp_type;
2708
2709 ieee80211_recalc_txpower(sdata, update_txp_type);
2710 }
2711 }
2712
2713 return 0;
2714 }
2715
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)2716 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2717 struct wireless_dev *wdev,
2718 int *dbm)
2719 {
2720 struct ieee80211_local *local = wiphy_priv(wiphy);
2721 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2722
2723 if (local->ops->get_txpower)
2724 return drv_get_txpower(local, sdata, dbm);
2725
2726 if (!local->use_chanctx)
2727 *dbm = local->hw.conf.power_level;
2728 else
2729 *dbm = sdata->vif.bss_conf.txpower;
2730
2731 /* INT_MIN indicates no power level was set yet */
2732 if (*dbm == INT_MIN)
2733 return -EINVAL;
2734
2735 return 0;
2736 }
2737
ieee80211_set_wds_peer(struct wiphy * wiphy,struct net_device * dev,const u8 * addr)2738 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2739 const u8 *addr)
2740 {
2741 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2742
2743 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2744
2745 return 0;
2746 }
2747
ieee80211_rfkill_poll(struct wiphy * wiphy)2748 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2749 {
2750 struct ieee80211_local *local = wiphy_priv(wiphy);
2751
2752 drv_rfkill_poll(local);
2753 }
2754
2755 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)2756 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2757 struct wireless_dev *wdev,
2758 void *data, int len)
2759 {
2760 struct ieee80211_local *local = wiphy_priv(wiphy);
2761 struct ieee80211_vif *vif = NULL;
2762
2763 if (!local->ops->testmode_cmd)
2764 return -EOPNOTSUPP;
2765
2766 if (wdev) {
2767 struct ieee80211_sub_if_data *sdata;
2768
2769 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2770 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2771 vif = &sdata->vif;
2772 }
2773
2774 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2775 }
2776
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)2777 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2778 struct sk_buff *skb,
2779 struct netlink_callback *cb,
2780 void *data, int len)
2781 {
2782 struct ieee80211_local *local = wiphy_priv(wiphy);
2783
2784 if (!local->ops->testmode_dump)
2785 return -EOPNOTSUPP;
2786
2787 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2788 }
2789 #endif
2790
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,enum ieee80211_smps_mode smps_mode)2791 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2792 enum ieee80211_smps_mode smps_mode)
2793 {
2794 const u8 *ap;
2795 enum ieee80211_smps_mode old_req;
2796 int err;
2797 struct sta_info *sta;
2798 bool tdls_peer_found = false;
2799
2800 lockdep_assert_held(&sdata->wdev.mtx);
2801
2802 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2803 return -EINVAL;
2804
2805 old_req = sdata->u.mgd.req_smps;
2806 sdata->u.mgd.req_smps = smps_mode;
2807
2808 if (old_req == smps_mode &&
2809 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2810 return 0;
2811
2812 /*
2813 * If not associated, or current association is not an HT
2814 * association, there's no need to do anything, just store
2815 * the new value until we associate.
2816 */
2817 if (!sdata->u.mgd.associated ||
2818 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2819 return 0;
2820
2821 ap = sdata->u.mgd.associated->bssid;
2822
2823 rcu_read_lock();
2824 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2825 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2826 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2827 continue;
2828
2829 tdls_peer_found = true;
2830 break;
2831 }
2832 rcu_read_unlock();
2833
2834 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2835 if (tdls_peer_found || !sdata->u.mgd.powersave)
2836 smps_mode = IEEE80211_SMPS_OFF;
2837 else
2838 smps_mode = IEEE80211_SMPS_DYNAMIC;
2839 }
2840
2841 /* send SM PS frame to AP */
2842 err = ieee80211_send_smps_action(sdata, smps_mode,
2843 ap, ap);
2844 if (err)
2845 sdata->u.mgd.req_smps = old_req;
2846 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2847 ieee80211_teardown_tdls_peers(sdata);
2848
2849 return err;
2850 }
2851
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)2852 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2853 bool enabled, int timeout)
2854 {
2855 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2856 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2857
2858 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2859 return -EOPNOTSUPP;
2860
2861 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2862 return -EOPNOTSUPP;
2863
2864 if (enabled == sdata->u.mgd.powersave &&
2865 timeout == local->dynamic_ps_forced_timeout)
2866 return 0;
2867
2868 sdata->u.mgd.powersave = enabled;
2869 local->dynamic_ps_forced_timeout = timeout;
2870
2871 /* no change, but if automatic follow powersave */
2872 sdata_lock(sdata);
2873 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2874 sdata_unlock(sdata);
2875
2876 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2877 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2878
2879 ieee80211_recalc_ps(local);
2880 ieee80211_recalc_ps_vif(sdata);
2881 ieee80211_check_fast_rx_iface(sdata);
2882
2883 return 0;
2884 }
2885
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)2886 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2887 struct net_device *dev,
2888 s32 rssi_thold, u32 rssi_hyst)
2889 {
2890 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2891 struct ieee80211_vif *vif = &sdata->vif;
2892 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2893
2894 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2895 rssi_hyst == bss_conf->cqm_rssi_hyst)
2896 return 0;
2897
2898 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2899 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2900 return -EOPNOTSUPP;
2901
2902 bss_conf->cqm_rssi_thold = rssi_thold;
2903 bss_conf->cqm_rssi_hyst = rssi_hyst;
2904 bss_conf->cqm_rssi_low = 0;
2905 bss_conf->cqm_rssi_high = 0;
2906 sdata->u.mgd.last_cqm_event_signal = 0;
2907
2908 /* tell the driver upon association, unless already associated */
2909 if (sdata->u.mgd.associated &&
2910 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2911 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2912
2913 return 0;
2914 }
2915
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)2916 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2917 struct net_device *dev,
2918 s32 rssi_low, s32 rssi_high)
2919 {
2920 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2921 struct ieee80211_vif *vif = &sdata->vif;
2922 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2923
2924 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2925 return -EOPNOTSUPP;
2926
2927 bss_conf->cqm_rssi_low = rssi_low;
2928 bss_conf->cqm_rssi_high = rssi_high;
2929 bss_conf->cqm_rssi_thold = 0;
2930 bss_conf->cqm_rssi_hyst = 0;
2931 sdata->u.mgd.last_cqm_event_signal = 0;
2932
2933 /* tell the driver upon association, unless already associated */
2934 if (sdata->u.mgd.associated &&
2935 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2936 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2937
2938 return 0;
2939 }
2940
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,const u8 * addr,const struct cfg80211_bitrate_mask * mask)2941 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2942 struct net_device *dev,
2943 const u8 *addr,
2944 const struct cfg80211_bitrate_mask *mask)
2945 {
2946 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2947 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2948 int i, ret;
2949
2950 if (!ieee80211_sdata_running(sdata))
2951 return -ENETDOWN;
2952
2953 /*
2954 * If active validate the setting and reject it if it doesn't leave
2955 * at least one basic rate usable, since we really have to be able
2956 * to send something, and if we're an AP we have to be able to do
2957 * so at a basic rate so that all clients can receive it.
2958 */
2959 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2960 sdata->vif.bss_conf.chandef.chan) {
2961 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2962 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2963
2964 if (!(mask->control[band].legacy & basic_rates))
2965 return -EINVAL;
2966 }
2967
2968 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2969 ret = drv_set_bitrate_mask(local, sdata, mask);
2970 if (ret)
2971 return ret;
2972 }
2973
2974 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2975 struct ieee80211_supported_band *sband = wiphy->bands[i];
2976 int j;
2977
2978 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2979 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2980 sizeof(mask->control[i].ht_mcs));
2981 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2982 mask->control[i].vht_mcs,
2983 sizeof(mask->control[i].vht_mcs));
2984
2985 sdata->rc_has_mcs_mask[i] = false;
2986 sdata->rc_has_vht_mcs_mask[i] = false;
2987 if (!sband)
2988 continue;
2989
2990 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2991 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
2992 sdata->rc_has_mcs_mask[i] = true;
2993 break;
2994 }
2995 }
2996
2997 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2998 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
2999 sdata->rc_has_vht_mcs_mask[i] = true;
3000 break;
3001 }
3002 }
3003 }
3004
3005 return 0;
3006 }
3007
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3008 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3009 struct net_device *dev,
3010 struct cfg80211_chan_def *chandef,
3011 u32 cac_time_ms)
3012 {
3013 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3014 struct ieee80211_local *local = sdata->local;
3015 int err;
3016
3017 mutex_lock(&local->mtx);
3018 if (!list_empty(&local->roc_list) || local->scanning) {
3019 err = -EBUSY;
3020 goto out_unlock;
3021 }
3022
3023 /* whatever, but channel contexts should not complain about that one */
3024 sdata->smps_mode = IEEE80211_SMPS_OFF;
3025 sdata->needed_rx_chains = local->rx_chains;
3026
3027 err = ieee80211_vif_use_channel(sdata, chandef,
3028 IEEE80211_CHANCTX_SHARED);
3029 if (err)
3030 goto out_unlock;
3031
3032 ieee80211_queue_delayed_work(&sdata->local->hw,
3033 &sdata->dfs_cac_timer_work,
3034 msecs_to_jiffies(cac_time_ms));
3035
3036 out_unlock:
3037 mutex_unlock(&local->mtx);
3038 return err;
3039 }
3040
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev)3041 static void ieee80211_end_cac(struct wiphy *wiphy,
3042 struct net_device *dev)
3043 {
3044 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3045 struct ieee80211_local *local = sdata->local;
3046
3047 mutex_lock(&local->mtx);
3048 list_for_each_entry(sdata, &local->interfaces, list) {
3049 /* it might be waiting for the local->mtx, but then
3050 * by the time it gets it, sdata->wdev.cac_started
3051 * will no longer be true
3052 */
3053 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3054
3055 if (sdata->wdev.cac_started) {
3056 ieee80211_vif_release_channel(sdata);
3057 sdata->wdev.cac_started = false;
3058 }
3059 }
3060 mutex_unlock(&local->mtx);
3061 }
3062
3063 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3064 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3065 {
3066 struct cfg80211_beacon_data *new_beacon;
3067 u8 *pos;
3068 int len;
3069
3070 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3071 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3072 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3073
3074 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3075 if (!new_beacon)
3076 return NULL;
3077
3078 pos = (u8 *)(new_beacon + 1);
3079 if (beacon->head_len) {
3080 new_beacon->head_len = beacon->head_len;
3081 new_beacon->head = pos;
3082 memcpy(pos, beacon->head, beacon->head_len);
3083 pos += beacon->head_len;
3084 }
3085 if (beacon->tail_len) {
3086 new_beacon->tail_len = beacon->tail_len;
3087 new_beacon->tail = pos;
3088 memcpy(pos, beacon->tail, beacon->tail_len);
3089 pos += beacon->tail_len;
3090 }
3091 if (beacon->beacon_ies_len) {
3092 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3093 new_beacon->beacon_ies = pos;
3094 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3095 pos += beacon->beacon_ies_len;
3096 }
3097 if (beacon->proberesp_ies_len) {
3098 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3099 new_beacon->proberesp_ies = pos;
3100 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3101 pos += beacon->proberesp_ies_len;
3102 }
3103 if (beacon->assocresp_ies_len) {
3104 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3105 new_beacon->assocresp_ies = pos;
3106 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3107 pos += beacon->assocresp_ies_len;
3108 }
3109 if (beacon->probe_resp_len) {
3110 new_beacon->probe_resp_len = beacon->probe_resp_len;
3111 new_beacon->probe_resp = pos;
3112 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3113 pos += beacon->probe_resp_len;
3114 }
3115
3116 /* might copy -1, meaning no changes requested */
3117 new_beacon->ftm_responder = beacon->ftm_responder;
3118 if (beacon->lci) {
3119 new_beacon->lci_len = beacon->lci_len;
3120 new_beacon->lci = pos;
3121 memcpy(pos, beacon->lci, beacon->lci_len);
3122 pos += beacon->lci_len;
3123 }
3124 if (beacon->civicloc) {
3125 new_beacon->civicloc_len = beacon->civicloc_len;
3126 new_beacon->civicloc = pos;
3127 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3128 pos += beacon->civicloc_len;
3129 }
3130
3131 return new_beacon;
3132 }
3133
ieee80211_csa_finish(struct ieee80211_vif * vif)3134 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3135 {
3136 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3137
3138 ieee80211_queue_work(&sdata->local->hw,
3139 &sdata->csa_finalize_work);
3140 }
3141 EXPORT_SYMBOL(ieee80211_csa_finish);
3142
ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u32 * changed)3143 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3144 u32 *changed)
3145 {
3146 int err;
3147
3148 switch (sdata->vif.type) {
3149 case NL80211_IFTYPE_AP:
3150 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3151 NULL);
3152 kfree(sdata->u.ap.next_beacon);
3153 sdata->u.ap.next_beacon = NULL;
3154
3155 if (err < 0)
3156 return err;
3157 *changed |= err;
3158 break;
3159 case NL80211_IFTYPE_ADHOC:
3160 err = ieee80211_ibss_finish_csa(sdata);
3161 if (err < 0)
3162 return err;
3163 *changed |= err;
3164 break;
3165 #ifdef CONFIG_MAC80211_MESH
3166 case NL80211_IFTYPE_MESH_POINT:
3167 err = ieee80211_mesh_finish_csa(sdata);
3168 if (err < 0)
3169 return err;
3170 *changed |= err;
3171 break;
3172 #endif
3173 default:
3174 WARN_ON(1);
3175 return -EINVAL;
3176 }
3177
3178 return 0;
3179 }
3180
__ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3181 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3182 {
3183 struct ieee80211_local *local = sdata->local;
3184 u32 changed = 0;
3185 int err;
3186
3187 sdata_assert_lock(sdata);
3188 lockdep_assert_held(&local->mtx);
3189 lockdep_assert_held(&local->chanctx_mtx);
3190
3191 /*
3192 * using reservation isn't immediate as it may be deferred until later
3193 * with multi-vif. once reservation is complete it will re-schedule the
3194 * work with no reserved_chanctx so verify chandef to check if it
3195 * completed successfully
3196 */
3197
3198 if (sdata->reserved_chanctx) {
3199 /*
3200 * with multi-vif csa driver may call ieee80211_csa_finish()
3201 * many times while waiting for other interfaces to use their
3202 * reservations
3203 */
3204 if (sdata->reserved_ready)
3205 return 0;
3206
3207 return ieee80211_vif_use_reserved_context(sdata);
3208 }
3209
3210 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3211 &sdata->csa_chandef))
3212 return -EINVAL;
3213
3214 sdata->vif.csa_active = false;
3215
3216 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3217 if (err)
3218 return err;
3219
3220 ieee80211_bss_info_change_notify(sdata, changed);
3221
3222 if (sdata->csa_block_tx) {
3223 ieee80211_wake_vif_queues(local, sdata,
3224 IEEE80211_QUEUE_STOP_REASON_CSA);
3225 sdata->csa_block_tx = false;
3226 }
3227
3228 err = drv_post_channel_switch(sdata);
3229 if (err)
3230 return err;
3231
3232 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3233
3234 return 0;
3235 }
3236
ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3237 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3238 {
3239 if (__ieee80211_csa_finalize(sdata)) {
3240 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3241 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3242 GFP_KERNEL);
3243 }
3244 }
3245
ieee80211_csa_finalize_work(struct work_struct * work)3246 void ieee80211_csa_finalize_work(struct work_struct *work)
3247 {
3248 struct ieee80211_sub_if_data *sdata =
3249 container_of(work, struct ieee80211_sub_if_data,
3250 csa_finalize_work);
3251 struct ieee80211_local *local = sdata->local;
3252
3253 sdata_lock(sdata);
3254 mutex_lock(&local->mtx);
3255 mutex_lock(&local->chanctx_mtx);
3256
3257 /* AP might have been stopped while waiting for the lock. */
3258 if (!sdata->vif.csa_active)
3259 goto unlock;
3260
3261 if (!ieee80211_sdata_running(sdata))
3262 goto unlock;
3263
3264 ieee80211_csa_finalize(sdata);
3265
3266 unlock:
3267 mutex_unlock(&local->chanctx_mtx);
3268 mutex_unlock(&local->mtx);
3269 sdata_unlock(sdata);
3270 }
3271
ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u32 * changed)3272 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3273 struct cfg80211_csa_settings *params,
3274 u32 *changed)
3275 {
3276 struct ieee80211_csa_settings csa = {};
3277 int err;
3278
3279 switch (sdata->vif.type) {
3280 case NL80211_IFTYPE_AP:
3281 sdata->u.ap.next_beacon =
3282 cfg80211_beacon_dup(¶ms->beacon_after);
3283 if (!sdata->u.ap.next_beacon)
3284 return -ENOMEM;
3285
3286 /*
3287 * With a count of 0, we don't have to wait for any
3288 * TBTT before switching, so complete the CSA
3289 * immediately. In theory, with a count == 1 we
3290 * should delay the switch until just before the next
3291 * TBTT, but that would complicate things so we switch
3292 * immediately too. If we would delay the switch
3293 * until the next TBTT, we would have to set the probe
3294 * response here.
3295 *
3296 * TODO: A channel switch with count <= 1 without
3297 * sending a CSA action frame is kind of useless,
3298 * because the clients won't know we're changing
3299 * channels. The action frame must be implemented
3300 * either here or in the userspace.
3301 */
3302 if (params->count <= 1)
3303 break;
3304
3305 if ((params->n_counter_offsets_beacon >
3306 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3307 (params->n_counter_offsets_presp >
3308 IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3309 return -EINVAL;
3310
3311 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3312 csa.counter_offsets_presp = params->counter_offsets_presp;
3313 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3314 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3315 csa.count = params->count;
3316
3317 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa);
3318 if (err < 0) {
3319 kfree(sdata->u.ap.next_beacon);
3320 return err;
3321 }
3322 *changed |= err;
3323
3324 break;
3325 case NL80211_IFTYPE_ADHOC:
3326 if (!sdata->vif.bss_conf.ibss_joined)
3327 return -EINVAL;
3328
3329 if (params->chandef.width != sdata->u.ibss.chandef.width)
3330 return -EINVAL;
3331
3332 switch (params->chandef.width) {
3333 case NL80211_CHAN_WIDTH_40:
3334 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3335 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3336 return -EINVAL;
3337 case NL80211_CHAN_WIDTH_5:
3338 case NL80211_CHAN_WIDTH_10:
3339 case NL80211_CHAN_WIDTH_20_NOHT:
3340 case NL80211_CHAN_WIDTH_20:
3341 break;
3342 default:
3343 return -EINVAL;
3344 }
3345
3346 /* changes into another band are not supported */
3347 if (sdata->u.ibss.chandef.chan->band !=
3348 params->chandef.chan->band)
3349 return -EINVAL;
3350
3351 /* see comments in the NL80211_IFTYPE_AP block */
3352 if (params->count > 1) {
3353 err = ieee80211_ibss_csa_beacon(sdata, params);
3354 if (err < 0)
3355 return err;
3356 *changed |= err;
3357 }
3358
3359 ieee80211_send_action_csa(sdata, params);
3360
3361 break;
3362 #ifdef CONFIG_MAC80211_MESH
3363 case NL80211_IFTYPE_MESH_POINT: {
3364 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3365
3366 /* changes into another band are not supported */
3367 if (sdata->vif.bss_conf.chandef.chan->band !=
3368 params->chandef.chan->band)
3369 return -EINVAL;
3370
3371 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3372 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3373 if (!ifmsh->pre_value)
3374 ifmsh->pre_value = 1;
3375 else
3376 ifmsh->pre_value++;
3377 }
3378
3379 /* see comments in the NL80211_IFTYPE_AP block */
3380 if (params->count > 1) {
3381 err = ieee80211_mesh_csa_beacon(sdata, params);
3382 if (err < 0) {
3383 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3384 return err;
3385 }
3386 *changed |= err;
3387 }
3388
3389 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3390 ieee80211_send_action_csa(sdata, params);
3391
3392 break;
3393 }
3394 #endif
3395 default:
3396 return -EOPNOTSUPP;
3397 }
3398
3399 return 0;
3400 }
3401
3402 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3403 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3404 struct cfg80211_csa_settings *params)
3405 {
3406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3407 struct ieee80211_local *local = sdata->local;
3408 struct ieee80211_channel_switch ch_switch;
3409 struct ieee80211_chanctx_conf *conf;
3410 struct ieee80211_chanctx *chanctx;
3411 u32 changed = 0;
3412 int err;
3413
3414 sdata_assert_lock(sdata);
3415 lockdep_assert_held(&local->mtx);
3416
3417 if (!list_empty(&local->roc_list) || local->scanning)
3418 return -EBUSY;
3419
3420 if (sdata->wdev.cac_started)
3421 return -EBUSY;
3422
3423 if (cfg80211_chandef_identical(¶ms->chandef,
3424 &sdata->vif.bss_conf.chandef))
3425 return -EINVAL;
3426
3427 /* don't allow another channel switch if one is already active. */
3428 if (sdata->vif.csa_active)
3429 return -EBUSY;
3430
3431 mutex_lock(&local->chanctx_mtx);
3432 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3433 lockdep_is_held(&local->chanctx_mtx));
3434 if (!conf) {
3435 err = -EBUSY;
3436 goto out;
3437 }
3438
3439 if (params->chandef.chan->freq_offset) {
3440 /* this may work, but is untested */
3441 err = -EOPNOTSUPP;
3442 goto out;
3443 }
3444
3445 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3446
3447 ch_switch.timestamp = 0;
3448 ch_switch.device_timestamp = 0;
3449 ch_switch.block_tx = params->block_tx;
3450 ch_switch.chandef = params->chandef;
3451 ch_switch.count = params->count;
3452
3453 err = drv_pre_channel_switch(sdata, &ch_switch);
3454 if (err)
3455 goto out;
3456
3457 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef,
3458 chanctx->mode,
3459 params->radar_required);
3460 if (err)
3461 goto out;
3462
3463 /* if reservation is invalid then this will fail */
3464 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3465 if (err) {
3466 ieee80211_vif_unreserve_chanctx(sdata);
3467 goto out;
3468 }
3469
3470 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3471 if (err) {
3472 ieee80211_vif_unreserve_chanctx(sdata);
3473 goto out;
3474 }
3475
3476 sdata->csa_chandef = params->chandef;
3477 sdata->csa_block_tx = params->block_tx;
3478 sdata->vif.csa_active = true;
3479
3480 if (sdata->csa_block_tx)
3481 ieee80211_stop_vif_queues(local, sdata,
3482 IEEE80211_QUEUE_STOP_REASON_CSA);
3483
3484 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3485 params->count);
3486
3487 if (changed) {
3488 ieee80211_bss_info_change_notify(sdata, changed);
3489 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3490 } else {
3491 /* if the beacon didn't change, we can finalize immediately */
3492 ieee80211_csa_finalize(sdata);
3493 }
3494
3495 out:
3496 mutex_unlock(&local->chanctx_mtx);
3497 return err;
3498 }
3499
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3500 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3501 struct cfg80211_csa_settings *params)
3502 {
3503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3504 struct ieee80211_local *local = sdata->local;
3505 int err;
3506
3507 mutex_lock(&local->mtx);
3508 err = __ieee80211_channel_switch(wiphy, dev, params);
3509 mutex_unlock(&local->mtx);
3510
3511 return err;
3512 }
3513
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)3514 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3515 {
3516 lockdep_assert_held(&local->mtx);
3517
3518 local->roc_cookie_counter++;
3519
3520 /* wow, you wrapped 64 bits ... more likely a bug */
3521 if (WARN_ON(local->roc_cookie_counter == 0))
3522 local->roc_cookie_counter++;
3523
3524 return local->roc_cookie_counter;
3525 }
3526
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)3527 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3528 u64 *cookie, gfp_t gfp)
3529 {
3530 unsigned long spin_flags;
3531 struct sk_buff *ack_skb;
3532 int id;
3533
3534 ack_skb = skb_copy(skb, gfp);
3535 if (!ack_skb)
3536 return -ENOMEM;
3537
3538 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3539 id = idr_alloc(&local->ack_status_frames, ack_skb,
3540 1, 0x2000, GFP_ATOMIC);
3541 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3542
3543 if (id < 0) {
3544 kfree_skb(ack_skb);
3545 return -ENOMEM;
3546 }
3547
3548 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3549
3550 *cookie = ieee80211_mgmt_tx_cookie(local);
3551 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3552
3553 return 0;
3554 }
3555
3556 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)3557 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3558 struct wireless_dev *wdev,
3559 struct mgmt_frame_regs *upd)
3560 {
3561 struct ieee80211_local *local = wiphy_priv(wiphy);
3562 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3563 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3564 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3565 bool global_change, intf_change;
3566
3567 global_change =
3568 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3569 (local->rx_mcast_action_reg !=
3570 !!(upd->global_mcast_stypes & action_mask));
3571 local->probe_req_reg = upd->global_stypes & preq_mask;
3572 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3573
3574 intf_change = (sdata->vif.probe_req_reg !=
3575 !!(upd->interface_stypes & preq_mask)) ||
3576 (sdata->vif.rx_mcast_action_reg !=
3577 !!(upd->interface_mcast_stypes & action_mask));
3578 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3579 sdata->vif.rx_mcast_action_reg =
3580 upd->interface_mcast_stypes & action_mask;
3581
3582 if (!local->open_count)
3583 return;
3584
3585 if (intf_change && ieee80211_sdata_running(sdata))
3586 drv_config_iface_filter(local, sdata,
3587 sdata->vif.probe_req_reg ?
3588 FIF_PROBE_REQ : 0,
3589 FIF_PROBE_REQ);
3590
3591 if (global_change)
3592 ieee80211_configure_filter(local);
3593 }
3594
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)3595 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3596 {
3597 struct ieee80211_local *local = wiphy_priv(wiphy);
3598
3599 if (local->started)
3600 return -EOPNOTSUPP;
3601
3602 return drv_set_antenna(local, tx_ant, rx_ant);
3603 }
3604
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)3605 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3606 {
3607 struct ieee80211_local *local = wiphy_priv(wiphy);
3608
3609 return drv_get_antenna(local, tx_ant, rx_ant);
3610 }
3611
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)3612 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3613 struct net_device *dev,
3614 struct cfg80211_gtk_rekey_data *data)
3615 {
3616 struct ieee80211_local *local = wiphy_priv(wiphy);
3617 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3618
3619 if (!local->ops->set_rekey_data)
3620 return -EOPNOTSUPP;
3621
3622 drv_set_rekey_data(local, sdata, data);
3623
3624 return 0;
3625 }
3626
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)3627 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3628 const u8 *peer, u64 *cookie)
3629 {
3630 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3631 struct ieee80211_local *local = sdata->local;
3632 struct ieee80211_qos_hdr *nullfunc;
3633 struct sk_buff *skb;
3634 int size = sizeof(*nullfunc);
3635 __le16 fc;
3636 bool qos;
3637 struct ieee80211_tx_info *info;
3638 struct sta_info *sta;
3639 struct ieee80211_chanctx_conf *chanctx_conf;
3640 enum nl80211_band band;
3641 int ret;
3642
3643 /* the lock is needed to assign the cookie later */
3644 mutex_lock(&local->mtx);
3645
3646 rcu_read_lock();
3647 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3648 if (WARN_ON(!chanctx_conf)) {
3649 ret = -EINVAL;
3650 goto unlock;
3651 }
3652 band = chanctx_conf->def.chan->band;
3653 sta = sta_info_get_bss(sdata, peer);
3654 if (sta) {
3655 qos = sta->sta.wme;
3656 } else {
3657 ret = -ENOLINK;
3658 goto unlock;
3659 }
3660
3661 if (qos) {
3662 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3663 IEEE80211_STYPE_QOS_NULLFUNC |
3664 IEEE80211_FCTL_FROMDS);
3665 } else {
3666 size -= 2;
3667 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3668 IEEE80211_STYPE_NULLFUNC |
3669 IEEE80211_FCTL_FROMDS);
3670 }
3671
3672 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3673 if (!skb) {
3674 ret = -ENOMEM;
3675 goto unlock;
3676 }
3677
3678 skb->dev = dev;
3679
3680 skb_reserve(skb, local->hw.extra_tx_headroom);
3681
3682 nullfunc = skb_put(skb, size);
3683 nullfunc->frame_control = fc;
3684 nullfunc->duration_id = 0;
3685 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3686 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3687 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3688 nullfunc->seq_ctrl = 0;
3689
3690 info = IEEE80211_SKB_CB(skb);
3691
3692 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3693 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3694 info->band = band;
3695
3696 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3697 skb->priority = 7;
3698 if (qos)
3699 nullfunc->qos_ctrl = cpu_to_le16(7);
3700
3701 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3702 if (ret) {
3703 kfree_skb(skb);
3704 goto unlock;
3705 }
3706
3707 local_bh_disable();
3708 ieee80211_xmit(sdata, sta, skb);
3709 local_bh_enable();
3710
3711 ret = 0;
3712 unlock:
3713 rcu_read_unlock();
3714 mutex_unlock(&local->mtx);
3715
3716 return ret;
3717 }
3718
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_chan_def * chandef)3719 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3720 struct wireless_dev *wdev,
3721 struct cfg80211_chan_def *chandef)
3722 {
3723 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3724 struct ieee80211_local *local = wiphy_priv(wiphy);
3725 struct ieee80211_chanctx_conf *chanctx_conf;
3726 int ret = -ENODATA;
3727
3728 rcu_read_lock();
3729 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3730 if (chanctx_conf) {
3731 *chandef = sdata->vif.bss_conf.chandef;
3732 ret = 0;
3733 } else if (local->open_count > 0 &&
3734 local->open_count == local->monitors &&
3735 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3736 if (local->use_chanctx)
3737 *chandef = local->monitor_chandef;
3738 else
3739 *chandef = local->_oper_chandef;
3740 ret = 0;
3741 }
3742 rcu_read_unlock();
3743
3744 return ret;
3745 }
3746
3747 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)3748 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3749 {
3750 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3751 }
3752 #endif
3753
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)3754 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3755 struct net_device *dev,
3756 struct cfg80211_qos_map *qos_map)
3757 {
3758 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3759 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3760
3761 if (qos_map) {
3762 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3763 if (!new_qos_map)
3764 return -ENOMEM;
3765 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3766 } else {
3767 /* A NULL qos_map was passed to disable QoS mapping */
3768 new_qos_map = NULL;
3769 }
3770
3771 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3772 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3773 if (old_qos_map)
3774 kfree_rcu(old_qos_map, rcu_head);
3775
3776 return 0;
3777 }
3778
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef)3779 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3780 struct net_device *dev,
3781 struct cfg80211_chan_def *chandef)
3782 {
3783 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3784 int ret;
3785 u32 changed = 0;
3786
3787 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3788 if (ret == 0)
3789 ieee80211_bss_info_change_notify(sdata, changed);
3790
3791 return ret;
3792 }
3793
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)3794 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3795 u8 tsid, const u8 *peer, u8 up,
3796 u16 admitted_time)
3797 {
3798 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3799 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3800 int ac = ieee802_1d_to_ac[up];
3801
3802 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3803 return -EOPNOTSUPP;
3804
3805 if (!(sdata->wmm_acm & BIT(up)))
3806 return -EINVAL;
3807
3808 if (ifmgd->tx_tspec[ac].admitted_time)
3809 return -EBUSY;
3810
3811 if (admitted_time) {
3812 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3813 ifmgd->tx_tspec[ac].tsid = tsid;
3814 ifmgd->tx_tspec[ac].up = up;
3815 }
3816
3817 return 0;
3818 }
3819
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)3820 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3821 u8 tsid, const u8 *peer)
3822 {
3823 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3824 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3825 struct ieee80211_local *local = wiphy_priv(wiphy);
3826 int ac;
3827
3828 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3829 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3830
3831 /* skip unused entries */
3832 if (!tx_tspec->admitted_time)
3833 continue;
3834
3835 if (tx_tspec->tsid != tsid)
3836 continue;
3837
3838 /* due to this new packets will be reassigned to non-ACM ACs */
3839 tx_tspec->up = -1;
3840
3841 /* Make sure that all packets have been sent to avoid to
3842 * restore the QoS params on packets that are still on the
3843 * queues.
3844 */
3845 synchronize_net();
3846 ieee80211_flush_queues(local, sdata, false);
3847
3848 /* restore the normal QoS parameters
3849 * (unconditionally to avoid races)
3850 */
3851 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3852 tx_tspec->downgraded = false;
3853 ieee80211_sta_handle_tspec_ac_params(sdata);
3854
3855 /* finally clear all the data */
3856 memset(tx_tspec, 0, sizeof(*tx_tspec));
3857
3858 return 0;
3859 }
3860
3861 return -ENOENT;
3862 }
3863
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)3864 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3865 u8 inst_id,
3866 enum nl80211_nan_func_term_reason reason,
3867 gfp_t gfp)
3868 {
3869 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3870 struct cfg80211_nan_func *func;
3871 u64 cookie;
3872
3873 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3874 return;
3875
3876 spin_lock_bh(&sdata->u.nan.func_lock);
3877
3878 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3879 if (WARN_ON(!func)) {
3880 spin_unlock_bh(&sdata->u.nan.func_lock);
3881 return;
3882 }
3883
3884 cookie = func->cookie;
3885 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3886
3887 spin_unlock_bh(&sdata->u.nan.func_lock);
3888
3889 cfg80211_free_nan_func(func);
3890
3891 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3892 reason, cookie, gfp);
3893 }
3894 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3895
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)3896 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3897 struct cfg80211_nan_match_params *match,
3898 gfp_t gfp)
3899 {
3900 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3901 struct cfg80211_nan_func *func;
3902
3903 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3904 return;
3905
3906 spin_lock_bh(&sdata->u.nan.func_lock);
3907
3908 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3909 if (WARN_ON(!func)) {
3910 spin_unlock_bh(&sdata->u.nan.func_lock);
3911 return;
3912 }
3913 match->cookie = func->cookie;
3914
3915 spin_unlock_bh(&sdata->u.nan.func_lock);
3916
3917 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3918 }
3919 EXPORT_SYMBOL(ieee80211_nan_func_match);
3920
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)3921 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3922 struct net_device *dev,
3923 const bool enabled)
3924 {
3925 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3926
3927 sdata->u.ap.multicast_to_unicast = enabled;
3928
3929 return 0;
3930 }
3931
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)3932 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3933 struct txq_info *txqi)
3934 {
3935 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3936 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3937 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3938 }
3939
3940 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3941 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3942 txqstats->backlog_packets = txqi->tin.backlog_packets;
3943 }
3944
3945 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3946 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3947 txqstats->flows = txqi->tin.flows;
3948 }
3949
3950 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3951 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3952 txqstats->drops = txqi->cstats.drop_count;
3953 }
3954
3955 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3956 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3957 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3958 }
3959
3960 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3961 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3962 txqstats->overlimit = txqi->tin.overlimit;
3963 }
3964
3965 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3966 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3967 txqstats->collisions = txqi->tin.collisions;
3968 }
3969
3970 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3971 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3972 txqstats->tx_bytes = txqi->tin.tx_bytes;
3973 }
3974
3975 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3976 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3977 txqstats->tx_packets = txqi->tin.tx_packets;
3978 }
3979 }
3980
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)3981 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3982 struct wireless_dev *wdev,
3983 struct cfg80211_txq_stats *txqstats)
3984 {
3985 struct ieee80211_local *local = wiphy_priv(wiphy);
3986 struct ieee80211_sub_if_data *sdata;
3987 int ret = 0;
3988
3989 if (!local->ops->wake_tx_queue)
3990 return 1;
3991
3992 spin_lock_bh(&local->fq.lock);
3993 rcu_read_lock();
3994
3995 if (wdev) {
3996 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3997 if (!sdata->vif.txq) {
3998 ret = 1;
3999 goto out;
4000 }
4001 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4002 } else {
4003 /* phy stats */
4004 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4005 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4006 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4007 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4008 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4009 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4010 txqstats->backlog_packets = local->fq.backlog;
4011 txqstats->backlog_bytes = local->fq.memory_usage;
4012 txqstats->overlimit = local->fq.overlimit;
4013 txqstats->overmemory = local->fq.overmemory;
4014 txqstats->collisions = local->fq.collisions;
4015 txqstats->max_flows = local->fq.flows_cnt;
4016 }
4017
4018 out:
4019 rcu_read_unlock();
4020 spin_unlock_bh(&local->fq.lock);
4021
4022 return ret;
4023 }
4024
4025 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4026 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4027 struct net_device *dev,
4028 struct cfg80211_ftm_responder_stats *ftm_stats)
4029 {
4030 struct ieee80211_local *local = wiphy_priv(wiphy);
4031 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4032
4033 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4034 }
4035
4036 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4037 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4038 struct cfg80211_pmsr_request *request)
4039 {
4040 struct ieee80211_local *local = wiphy_priv(wiphy);
4041 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4042
4043 return drv_start_pmsr(local, sdata, request);
4044 }
4045
4046 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4047 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4048 struct cfg80211_pmsr_request *request)
4049 {
4050 struct ieee80211_local *local = wiphy_priv(wiphy);
4051 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4052
4053 return drv_abort_pmsr(local, sdata, request);
4054 }
4055
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4056 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4057 struct net_device *dev,
4058 struct cfg80211_tid_config *tid_conf)
4059 {
4060 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4061 struct sta_info *sta;
4062 int ret;
4063
4064 if (!sdata->local->ops->set_tid_config)
4065 return -EOPNOTSUPP;
4066
4067 if (!tid_conf->peer)
4068 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4069
4070 mutex_lock(&sdata->local->sta_mtx);
4071 sta = sta_info_get_bss(sdata, tid_conf->peer);
4072 if (!sta) {
4073 mutex_unlock(&sdata->local->sta_mtx);
4074 return -ENOENT;
4075 }
4076
4077 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4078 mutex_unlock(&sdata->local->sta_mtx);
4079
4080 return ret;
4081 }
4082
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4083 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4084 struct net_device *dev,
4085 const u8 *peer, u8 tids)
4086 {
4087 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4088 struct sta_info *sta;
4089 int ret;
4090
4091 if (!sdata->local->ops->reset_tid_config)
4092 return -EOPNOTSUPP;
4093
4094 if (!peer)
4095 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4096
4097 mutex_lock(&sdata->local->sta_mtx);
4098 sta = sta_info_get_bss(sdata, peer);
4099 if (!sta) {
4100 mutex_unlock(&sdata->local->sta_mtx);
4101 return -ENOENT;
4102 }
4103
4104 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4105 mutex_unlock(&sdata->local->sta_mtx);
4106
4107 return ret;
4108 }
4109
4110 const struct cfg80211_ops mac80211_config_ops = {
4111 .add_virtual_intf = ieee80211_add_iface,
4112 .del_virtual_intf = ieee80211_del_iface,
4113 .change_virtual_intf = ieee80211_change_iface,
4114 .start_p2p_device = ieee80211_start_p2p_device,
4115 .stop_p2p_device = ieee80211_stop_p2p_device,
4116 .add_key = ieee80211_add_key,
4117 .del_key = ieee80211_del_key,
4118 .get_key = ieee80211_get_key,
4119 .set_default_key = ieee80211_config_default_key,
4120 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4121 .set_default_beacon_key = ieee80211_config_default_beacon_key,
4122 .start_ap = ieee80211_start_ap,
4123 .change_beacon = ieee80211_change_beacon,
4124 .stop_ap = ieee80211_stop_ap,
4125 .add_station = ieee80211_add_station,
4126 .del_station = ieee80211_del_station,
4127 .change_station = ieee80211_change_station,
4128 .get_station = ieee80211_get_station,
4129 .dump_station = ieee80211_dump_station,
4130 .dump_survey = ieee80211_dump_survey,
4131 #ifdef CONFIG_MAC80211_MESH
4132 .add_mpath = ieee80211_add_mpath,
4133 .del_mpath = ieee80211_del_mpath,
4134 .change_mpath = ieee80211_change_mpath,
4135 .get_mpath = ieee80211_get_mpath,
4136 .dump_mpath = ieee80211_dump_mpath,
4137 .get_mpp = ieee80211_get_mpp,
4138 .dump_mpp = ieee80211_dump_mpp,
4139 .update_mesh_config = ieee80211_update_mesh_config,
4140 .get_mesh_config = ieee80211_get_mesh_config,
4141 .join_mesh = ieee80211_join_mesh,
4142 .leave_mesh = ieee80211_leave_mesh,
4143 #endif
4144 .join_ocb = ieee80211_join_ocb,
4145 .leave_ocb = ieee80211_leave_ocb,
4146 .change_bss = ieee80211_change_bss,
4147 .set_txq_params = ieee80211_set_txq_params,
4148 .set_monitor_channel = ieee80211_set_monitor_channel,
4149 .suspend = ieee80211_suspend,
4150 .resume = ieee80211_resume,
4151 .scan = ieee80211_scan,
4152 .abort_scan = ieee80211_abort_scan,
4153 .sched_scan_start = ieee80211_sched_scan_start,
4154 .sched_scan_stop = ieee80211_sched_scan_stop,
4155 .auth = ieee80211_auth,
4156 .assoc = ieee80211_assoc,
4157 .deauth = ieee80211_deauth,
4158 .disassoc = ieee80211_disassoc,
4159 .join_ibss = ieee80211_join_ibss,
4160 .leave_ibss = ieee80211_leave_ibss,
4161 .set_mcast_rate = ieee80211_set_mcast_rate,
4162 .set_wiphy_params = ieee80211_set_wiphy_params,
4163 .set_tx_power = ieee80211_set_tx_power,
4164 .get_tx_power = ieee80211_get_tx_power,
4165 .set_wds_peer = ieee80211_set_wds_peer,
4166 .rfkill_poll = ieee80211_rfkill_poll,
4167 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4168 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4169 .set_power_mgmt = ieee80211_set_power_mgmt,
4170 .set_bitrate_mask = ieee80211_set_bitrate_mask,
4171 .remain_on_channel = ieee80211_remain_on_channel,
4172 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4173 .mgmt_tx = ieee80211_mgmt_tx,
4174 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4175 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4176 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4177 .update_mgmt_frame_registrations =
4178 ieee80211_update_mgmt_frame_registrations,
4179 .set_antenna = ieee80211_set_antenna,
4180 .get_antenna = ieee80211_get_antenna,
4181 .set_rekey_data = ieee80211_set_rekey_data,
4182 .tdls_oper = ieee80211_tdls_oper,
4183 .tdls_mgmt = ieee80211_tdls_mgmt,
4184 .tdls_channel_switch = ieee80211_tdls_channel_switch,
4185 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4186 .probe_client = ieee80211_probe_client,
4187 .set_noack_map = ieee80211_set_noack_map,
4188 #ifdef CONFIG_PM
4189 .set_wakeup = ieee80211_set_wakeup,
4190 #endif
4191 .get_channel = ieee80211_cfg_get_channel,
4192 .start_radar_detection = ieee80211_start_radar_detection,
4193 .end_cac = ieee80211_end_cac,
4194 .channel_switch = ieee80211_channel_switch,
4195 .set_qos_map = ieee80211_set_qos_map,
4196 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4197 .add_tx_ts = ieee80211_add_tx_ts,
4198 .del_tx_ts = ieee80211_del_tx_ts,
4199 .start_nan = ieee80211_start_nan,
4200 .stop_nan = ieee80211_stop_nan,
4201 .nan_change_conf = ieee80211_nan_change_conf,
4202 .add_nan_func = ieee80211_add_nan_func,
4203 .del_nan_func = ieee80211_del_nan_func,
4204 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4205 .tx_control_port = ieee80211_tx_control_port,
4206 .get_txq_stats = ieee80211_get_txq_stats,
4207 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4208 .start_pmsr = ieee80211_start_pmsr,
4209 .abort_pmsr = ieee80211_abort_pmsr,
4210 .probe_mesh_link = ieee80211_probe_mesh_link,
4211 .set_tid_config = ieee80211_set_tid_config,
4212 .reset_tid_config = ieee80211_reset_tid_config,
4213 };
4214