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) 2018-2019 Intel Corporation
9 * Copyright (C) 2018 Intel Corporation
10 */
11
12 #include <linux/ieee80211.h>
13 #include <linux/nl80211.h>
14 #include <linux/rtnetlink.h>
15 #include <linux/slab.h>
16 #include <net/net_namespace.h>
17 #include <linux/rcupdate.h>
18 #include <linux/fips.h>
19 #include <linux/if_ether.h>
20 #include <net/cfg80211.h>
21 #include "ieee80211_i.h"
22 #include "driver-ops.h"
23 #include "rate.h"
24 #include "mesh.h"
25 #include "wme.h"
26
ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data * sdata,struct vif_params * params)27 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
28 struct vif_params *params)
29 {
30 bool mu_mimo_groups = false;
31 bool mu_mimo_follow = false;
32
33 if (params->vht_mumimo_groups) {
34 u64 membership;
35
36 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
37
38 memcpy(sdata->vif.bss_conf.mu_group.membership,
39 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
40 memcpy(sdata->vif.bss_conf.mu_group.position,
41 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
42 WLAN_USER_POSITION_LEN);
43 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
44 /* don't care about endianness - just check for 0 */
45 memcpy(&membership, params->vht_mumimo_groups,
46 WLAN_MEMBERSHIP_LEN);
47 mu_mimo_groups = membership != 0;
48 }
49
50 if (params->vht_mumimo_follow_addr) {
51 mu_mimo_follow =
52 is_valid_ether_addr(params->vht_mumimo_follow_addr);
53 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
54 params->vht_mumimo_follow_addr);
55 }
56
57 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
58 }
59
ieee80211_set_mon_options(struct ieee80211_sub_if_data * sdata,struct vif_params * params)60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
61 struct vif_params *params)
62 {
63 struct ieee80211_local *local = sdata->local;
64 struct ieee80211_sub_if_data *monitor_sdata;
65
66 /* check flags first */
67 if (params->flags && ieee80211_sdata_running(sdata)) {
68 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
69
70 /*
71 * Prohibit MONITOR_FLAG_COOK_FRAMES and
72 * MONITOR_FLAG_ACTIVE to be changed while the
73 * interface is up.
74 * Else we would need to add a lot of cruft
75 * to update everything:
76 * cooked_mntrs, monitor and all fif_* counters
77 * reconfigure hardware
78 */
79 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
80 return -EBUSY;
81 }
82
83 /* also validate MU-MIMO change */
84 monitor_sdata = rtnl_dereference(local->monitor_sdata);
85
86 if (!monitor_sdata &&
87 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
88 return -EOPNOTSUPP;
89
90 /* apply all changes now - no failures allowed */
91
92 if (monitor_sdata)
93 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
94
95 if (params->flags) {
96 if (ieee80211_sdata_running(sdata)) {
97 ieee80211_adjust_monitor_flags(sdata, -1);
98 sdata->u.mntr.flags = params->flags;
99 ieee80211_adjust_monitor_flags(sdata, 1);
100
101 ieee80211_configure_filter(local);
102 } else {
103 /*
104 * Because the interface is down, ieee80211_do_stop
105 * and ieee80211_do_open take care of "everything"
106 * mentioned in the comment above.
107 */
108 sdata->u.mntr.flags = params->flags;
109 }
110 }
111
112 return 0;
113 }
114
ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)115 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
116 const char *name,
117 unsigned char name_assign_type,
118 enum nl80211_iftype type,
119 struct vif_params *params)
120 {
121 struct ieee80211_local *local = wiphy_priv(wiphy);
122 struct wireless_dev *wdev;
123 struct ieee80211_sub_if_data *sdata;
124 int err;
125
126 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
127 if (err)
128 return ERR_PTR(err);
129
130 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
131
132 if (type == NL80211_IFTYPE_MONITOR) {
133 err = ieee80211_set_mon_options(sdata, params);
134 if (err) {
135 ieee80211_if_remove(sdata);
136 return NULL;
137 }
138 }
139
140 return wdev;
141 }
142
ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)143 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
144 {
145 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
146
147 return 0;
148 }
149
ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)150 static int ieee80211_change_iface(struct wiphy *wiphy,
151 struct net_device *dev,
152 enum nl80211_iftype type,
153 struct vif_params *params)
154 {
155 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
156 int ret;
157
158 ret = ieee80211_if_change_type(sdata, type);
159 if (ret)
160 return ret;
161
162 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
164 ieee80211_check_fast_rx_iface(sdata);
165 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
166 sdata->u.mgd.use_4addr = params->use_4addr;
167 }
168
169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
170 ret = ieee80211_set_mon_options(sdata, params);
171 if (ret)
172 return ret;
173 }
174
175 return 0;
176 }
177
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)178 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
179 struct wireless_dev *wdev)
180 {
181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
182 int ret;
183
184 mutex_lock(&sdata->local->chanctx_mtx);
185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
186 mutex_unlock(&sdata->local->chanctx_mtx);
187 if (ret < 0)
188 return ret;
189
190 return ieee80211_do_open(wdev, true);
191 }
192
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
194 struct wireless_dev *wdev)
195 {
196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
197 }
198
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)199 static int ieee80211_start_nan(struct wiphy *wiphy,
200 struct wireless_dev *wdev,
201 struct cfg80211_nan_conf *conf)
202 {
203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
204 int ret;
205
206 mutex_lock(&sdata->local->chanctx_mtx);
207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
208 mutex_unlock(&sdata->local->chanctx_mtx);
209 if (ret < 0)
210 return ret;
211
212 ret = ieee80211_do_open(wdev, true);
213 if (ret)
214 return ret;
215
216 ret = drv_start_nan(sdata->local, sdata, conf);
217 if (ret)
218 ieee80211_sdata_stop(sdata);
219
220 sdata->u.nan.conf = *conf;
221
222 return ret;
223 }
224
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)225 static void ieee80211_stop_nan(struct wiphy *wiphy,
226 struct wireless_dev *wdev)
227 {
228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
229
230 drv_stop_nan(sdata->local, sdata);
231 ieee80211_sdata_stop(sdata);
232 }
233
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)234 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
235 struct wireless_dev *wdev,
236 struct cfg80211_nan_conf *conf,
237 u32 changes)
238 {
239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
240 struct cfg80211_nan_conf new_conf;
241 int ret = 0;
242
243 if (sdata->vif.type != NL80211_IFTYPE_NAN)
244 return -EOPNOTSUPP;
245
246 if (!ieee80211_sdata_running(sdata))
247 return -ENETDOWN;
248
249 new_conf = sdata->u.nan.conf;
250
251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
252 new_conf.master_pref = conf->master_pref;
253
254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
255 new_conf.bands = conf->bands;
256
257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
258 if (!ret)
259 sdata->u.nan.conf = new_conf;
260
261 return ret;
262 }
263
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)264 static int ieee80211_add_nan_func(struct wiphy *wiphy,
265 struct wireless_dev *wdev,
266 struct cfg80211_nan_func *nan_func)
267 {
268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
269 int ret;
270
271 if (sdata->vif.type != NL80211_IFTYPE_NAN)
272 return -EOPNOTSUPP;
273
274 if (!ieee80211_sdata_running(sdata))
275 return -ENETDOWN;
276
277 spin_lock_bh(&sdata->u.nan.func_lock);
278
279 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
281 GFP_ATOMIC);
282 spin_unlock_bh(&sdata->u.nan.func_lock);
283
284 if (ret < 0)
285 return ret;
286
287 nan_func->instance_id = ret;
288
289 WARN_ON(nan_func->instance_id == 0);
290
291 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
292 if (ret) {
293 spin_lock_bh(&sdata->u.nan.func_lock);
294 idr_remove(&sdata->u.nan.function_inst_ids,
295 nan_func->instance_id);
296 spin_unlock_bh(&sdata->u.nan.func_lock);
297 }
298
299 return ret;
300 }
301
302 static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
304 u64 cookie)
305 {
306 struct cfg80211_nan_func *func;
307 int id;
308
309 lockdep_assert_held(&sdata->u.nan.func_lock);
310
311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
312 if (func->cookie == cookie)
313 return func;
314 }
315
316 return NULL;
317 }
318
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)319 static void ieee80211_del_nan_func(struct wiphy *wiphy,
320 struct wireless_dev *wdev, u64 cookie)
321 {
322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
323 struct cfg80211_nan_func *func;
324 u8 instance_id = 0;
325
326 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
327 !ieee80211_sdata_running(sdata))
328 return;
329
330 spin_lock_bh(&sdata->u.nan.func_lock);
331
332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
333 if (func)
334 instance_id = func->instance_id;
335
336 spin_unlock_bh(&sdata->u.nan.func_lock);
337
338 if (instance_id)
339 drv_del_nan_func(sdata->local, sdata, instance_id);
340 }
341
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)342 static int ieee80211_set_noack_map(struct wiphy *wiphy,
343 struct net_device *dev,
344 u16 noack_map)
345 {
346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
347
348 sdata->noack_map = noack_map;
349
350 ieee80211_check_fast_xmit_iface(sdata);
351
352 return 0;
353 }
354
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)355 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
356 const u8 *mac_addr, u8 key_idx)
357 {
358 struct ieee80211_local *local = sdata->local;
359 struct ieee80211_key *key;
360 struct sta_info *sta;
361 int ret = -EINVAL;
362
363 if (!wiphy_ext_feature_isset(local->hw.wiphy,
364 NL80211_EXT_FEATURE_EXT_KEY_ID))
365 return -EINVAL;
366
367 sta = sta_info_get_bss(sdata, mac_addr);
368
369 if (!sta)
370 return -EINVAL;
371
372 if (sta->ptk_idx == key_idx)
373 return 0;
374
375 mutex_lock(&local->key_mtx);
376 key = key_mtx_dereference(local, sta->ptk[key_idx]);
377
378 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
379 ret = ieee80211_set_tx_key(key);
380
381 mutex_unlock(&local->key_mtx);
382 return ret;
383 }
384
ieee80211_add_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)385 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
386 u8 key_idx, bool pairwise, const u8 *mac_addr,
387 struct key_params *params)
388 {
389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
390 struct ieee80211_local *local = sdata->local;
391 struct sta_info *sta = NULL;
392 const struct ieee80211_cipher_scheme *cs = NULL;
393 struct ieee80211_key *key;
394 int err;
395
396 if (!ieee80211_sdata_running(sdata))
397 return -ENETDOWN;
398
399 if (pairwise && params->mode == NL80211_KEY_SET_TX)
400 return ieee80211_set_tx(sdata, mac_addr, key_idx);
401
402 /* reject WEP and TKIP keys if WEP failed to initialize */
403 switch (params->cipher) {
404 case WLAN_CIPHER_SUITE_WEP40:
405 case WLAN_CIPHER_SUITE_TKIP:
406 case WLAN_CIPHER_SUITE_WEP104:
407 if (WARN_ON_ONCE(fips_enabled))
408 return -EINVAL;
409 case WLAN_CIPHER_SUITE_CCMP:
410 case WLAN_CIPHER_SUITE_CCMP_256:
411 case WLAN_CIPHER_SUITE_AES_CMAC:
412 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
413 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
414 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
415 case WLAN_CIPHER_SUITE_GCMP:
416 case WLAN_CIPHER_SUITE_GCMP_256:
417 break;
418 default:
419 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
420 break;
421 }
422
423 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
424 params->key, params->seq_len, params->seq,
425 cs);
426 if (IS_ERR(key))
427 return PTR_ERR(key);
428
429 if (pairwise)
430 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
431
432 if (params->mode == NL80211_KEY_NO_TX)
433 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
434
435 mutex_lock(&local->sta_mtx);
436
437 if (mac_addr) {
438 sta = sta_info_get_bss(sdata, mac_addr);
439 /*
440 * The ASSOC test makes sure the driver is ready to
441 * receive the key. When wpa_supplicant has roamed
442 * using FT, it attempts to set the key before
443 * association has completed, this rejects that attempt
444 * so it will set the key again after association.
445 *
446 * TODO: accept the key if we have a station entry and
447 * add it to the device after the station.
448 */
449 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
450 ieee80211_key_free_unused(key);
451 err = -ENOENT;
452 goto out_unlock;
453 }
454 }
455
456 switch (sdata->vif.type) {
457 case NL80211_IFTYPE_STATION:
458 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
459 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
460 break;
461 case NL80211_IFTYPE_AP:
462 case NL80211_IFTYPE_AP_VLAN:
463 /* Keys without a station are used for TX only */
464 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
465 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
466 break;
467 case NL80211_IFTYPE_ADHOC:
468 /* no MFP (yet) */
469 break;
470 case NL80211_IFTYPE_MESH_POINT:
471 #ifdef CONFIG_MAC80211_MESH
472 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
473 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
474 break;
475 #endif
476 case NL80211_IFTYPE_WDS:
477 case NL80211_IFTYPE_MONITOR:
478 case NL80211_IFTYPE_P2P_DEVICE:
479 case NL80211_IFTYPE_NAN:
480 case NL80211_IFTYPE_UNSPECIFIED:
481 case NUM_NL80211_IFTYPES:
482 case NL80211_IFTYPE_P2P_CLIENT:
483 case NL80211_IFTYPE_P2P_GO:
484 case NL80211_IFTYPE_OCB:
485 /* shouldn't happen */
486 WARN_ON_ONCE(1);
487 break;
488 }
489
490 if (sta)
491 sta->cipher_scheme = cs;
492
493 err = ieee80211_key_link(key, sdata, sta);
494
495 out_unlock:
496 mutex_unlock(&local->sta_mtx);
497
498 return err;
499 }
500
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr)501 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
502 u8 key_idx, bool pairwise, const u8 *mac_addr)
503 {
504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
505 struct ieee80211_local *local = sdata->local;
506 struct sta_info *sta;
507 struct ieee80211_key *key = NULL;
508 int ret;
509
510 mutex_lock(&local->sta_mtx);
511 mutex_lock(&local->key_mtx);
512
513 if (mac_addr) {
514 ret = -ENOENT;
515
516 sta = sta_info_get_bss(sdata, mac_addr);
517 if (!sta)
518 goto out_unlock;
519
520 if (pairwise)
521 key = key_mtx_dereference(local, sta->ptk[key_idx]);
522 else
523 key = key_mtx_dereference(local, sta->gtk[key_idx]);
524 } else
525 key = key_mtx_dereference(local, sdata->keys[key_idx]);
526
527 if (!key) {
528 ret = -ENOENT;
529 goto out_unlock;
530 }
531
532 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
533
534 ret = 0;
535 out_unlock:
536 mutex_unlock(&local->key_mtx);
537 mutex_unlock(&local->sta_mtx);
538
539 return ret;
540 }
541
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))542 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
543 u8 key_idx, bool pairwise, const u8 *mac_addr,
544 void *cookie,
545 void (*callback)(void *cookie,
546 struct key_params *params))
547 {
548 struct ieee80211_sub_if_data *sdata;
549 struct sta_info *sta = NULL;
550 u8 seq[6] = {0};
551 struct key_params params;
552 struct ieee80211_key *key = NULL;
553 u64 pn64;
554 u32 iv32;
555 u16 iv16;
556 int err = -ENOENT;
557 struct ieee80211_key_seq kseq = {};
558
559 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
560
561 rcu_read_lock();
562
563 if (mac_addr) {
564 sta = sta_info_get_bss(sdata, mac_addr);
565 if (!sta)
566 goto out;
567
568 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
569 key = rcu_dereference(sta->ptk[key_idx]);
570 else if (!pairwise &&
571 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
572 key = rcu_dereference(sta->gtk[key_idx]);
573 } else
574 key = rcu_dereference(sdata->keys[key_idx]);
575
576 if (!key)
577 goto out;
578
579 memset(¶ms, 0, sizeof(params));
580
581 params.cipher = key->conf.cipher;
582
583 switch (key->conf.cipher) {
584 case WLAN_CIPHER_SUITE_TKIP:
585 pn64 = atomic64_read(&key->conf.tx_pn);
586 iv32 = TKIP_PN_TO_IV32(pn64);
587 iv16 = TKIP_PN_TO_IV16(pn64);
588
589 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
590 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
591 drv_get_key_seq(sdata->local, key, &kseq);
592 iv32 = kseq.tkip.iv32;
593 iv16 = kseq.tkip.iv16;
594 }
595
596 seq[0] = iv16 & 0xff;
597 seq[1] = (iv16 >> 8) & 0xff;
598 seq[2] = iv32 & 0xff;
599 seq[3] = (iv32 >> 8) & 0xff;
600 seq[4] = (iv32 >> 16) & 0xff;
601 seq[5] = (iv32 >> 24) & 0xff;
602 params.seq = seq;
603 params.seq_len = 6;
604 break;
605 case WLAN_CIPHER_SUITE_CCMP:
606 case WLAN_CIPHER_SUITE_CCMP_256:
607 case WLAN_CIPHER_SUITE_AES_CMAC:
608 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
609 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
610 offsetof(typeof(kseq), aes_cmac));
611 /* fall through */
612 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
613 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
614 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
615 offsetof(typeof(kseq), aes_gmac));
616 /* fall through */
617 case WLAN_CIPHER_SUITE_GCMP:
618 case WLAN_CIPHER_SUITE_GCMP_256:
619 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
620 offsetof(typeof(kseq), gcmp));
621
622 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
623 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
624 drv_get_key_seq(sdata->local, key, &kseq);
625 memcpy(seq, kseq.ccmp.pn, 6);
626 } else {
627 pn64 = atomic64_read(&key->conf.tx_pn);
628 seq[0] = pn64;
629 seq[1] = pn64 >> 8;
630 seq[2] = pn64 >> 16;
631 seq[3] = pn64 >> 24;
632 seq[4] = pn64 >> 32;
633 seq[5] = pn64 >> 40;
634 }
635 params.seq = seq;
636 params.seq_len = 6;
637 break;
638 default:
639 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
640 break;
641 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
642 break;
643 drv_get_key_seq(sdata->local, key, &kseq);
644 params.seq = kseq.hw.seq;
645 params.seq_len = kseq.hw.seq_len;
646 break;
647 }
648
649 params.key = key->conf.key;
650 params.key_len = key->conf.keylen;
651
652 callback(cookie, ¶ms);
653 err = 0;
654
655 out:
656 rcu_read_unlock();
657 return err;
658 }
659
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool uni,bool multi)660 static int ieee80211_config_default_key(struct wiphy *wiphy,
661 struct net_device *dev,
662 u8 key_idx, bool uni,
663 bool multi)
664 {
665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
666
667 ieee80211_set_default_key(sdata, key_idx, uni, multi);
668
669 return 0;
670 }
671
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
673 struct net_device *dev,
674 u8 key_idx)
675 {
676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
677
678 ieee80211_set_default_mgmt_key(sdata, key_idx);
679
680 return 0;
681 }
682
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)683 void sta_set_rate_info_tx(struct sta_info *sta,
684 const struct ieee80211_tx_rate *rate,
685 struct rate_info *rinfo)
686 {
687 rinfo->flags = 0;
688 if (rate->flags & IEEE80211_TX_RC_MCS) {
689 rinfo->flags |= RATE_INFO_FLAGS_MCS;
690 rinfo->mcs = rate->idx;
691 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
692 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
693 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
694 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
695 } else {
696 struct ieee80211_supported_band *sband;
697 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
698 u16 brate;
699
700 sband = ieee80211_get_sband(sta->sdata);
701 if (sband) {
702 brate = sband->bitrates[rate->idx].bitrate;
703 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
704 }
705 }
706 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
707 rinfo->bw = RATE_INFO_BW_40;
708 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
709 rinfo->bw = RATE_INFO_BW_80;
710 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
711 rinfo->bw = RATE_INFO_BW_160;
712 else
713 rinfo->bw = RATE_INFO_BW_20;
714 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
715 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
716 }
717
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)718 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
719 int idx, u8 *mac, struct station_info *sinfo)
720 {
721 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
722 struct ieee80211_local *local = sdata->local;
723 struct sta_info *sta;
724 int ret = -ENOENT;
725
726 mutex_lock(&local->sta_mtx);
727
728 sta = sta_info_get_by_idx(sdata, idx);
729 if (sta) {
730 ret = 0;
731 memcpy(mac, sta->sta.addr, ETH_ALEN);
732 sta_set_sinfo(sta, sinfo, true);
733 }
734
735 mutex_unlock(&local->sta_mtx);
736
737 return ret;
738 }
739
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)740 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
741 int idx, struct survey_info *survey)
742 {
743 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
744
745 return drv_get_survey(local, idx, survey);
746 }
747
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)748 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
749 const u8 *mac, struct station_info *sinfo)
750 {
751 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
752 struct ieee80211_local *local = sdata->local;
753 struct sta_info *sta;
754 int ret = -ENOENT;
755
756 mutex_lock(&local->sta_mtx);
757
758 sta = sta_info_get_bss(sdata, mac);
759 if (sta) {
760 ret = 0;
761 sta_set_sinfo(sta, sinfo, true);
762 }
763
764 mutex_unlock(&local->sta_mtx);
765
766 return ret;
767 }
768
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)769 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
770 struct cfg80211_chan_def *chandef)
771 {
772 struct ieee80211_local *local = wiphy_priv(wiphy);
773 struct ieee80211_sub_if_data *sdata;
774 int ret = 0;
775
776 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
777 return 0;
778
779 mutex_lock(&local->mtx);
780 if (local->use_chanctx) {
781 sdata = rtnl_dereference(local->monitor_sdata);
782 if (sdata) {
783 ieee80211_vif_release_channel(sdata);
784 ret = ieee80211_vif_use_channel(sdata, chandef,
785 IEEE80211_CHANCTX_EXCLUSIVE);
786 }
787 } else if (local->open_count == local->monitors) {
788 local->_oper_chandef = *chandef;
789 ieee80211_hw_config(local, 0);
790 }
791
792 if (ret == 0)
793 local->monitor_chandef = *chandef;
794 mutex_unlock(&local->mtx);
795
796 return ret;
797 }
798
ieee80211_set_probe_resp(struct ieee80211_sub_if_data * sdata,const u8 * resp,size_t resp_len,const struct ieee80211_csa_settings * csa)799 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
800 const u8 *resp, size_t resp_len,
801 const struct ieee80211_csa_settings *csa)
802 {
803 struct probe_resp *new, *old;
804
805 if (!resp || !resp_len)
806 return 1;
807
808 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
809
810 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
811 if (!new)
812 return -ENOMEM;
813
814 new->len = resp_len;
815 memcpy(new->data, resp, resp_len);
816
817 if (csa)
818 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
819 csa->n_counter_offsets_presp *
820 sizeof(new->csa_counter_offsets[0]));
821
822 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
823 if (old)
824 kfree_rcu(old, rcu_head);
825
826 return 0;
827 }
828
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)829 static int ieee80211_set_ftm_responder_params(
830 struct ieee80211_sub_if_data *sdata,
831 const u8 *lci, size_t lci_len,
832 const u8 *civicloc, size_t civicloc_len)
833 {
834 struct ieee80211_ftm_responder_params *new, *old;
835 struct ieee80211_bss_conf *bss_conf;
836 u8 *pos;
837 int len;
838
839 if (!lci_len && !civicloc_len)
840 return 0;
841
842 bss_conf = &sdata->vif.bss_conf;
843 old = bss_conf->ftmr_params;
844 len = lci_len + civicloc_len;
845
846 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
847 if (!new)
848 return -ENOMEM;
849
850 pos = (u8 *)(new + 1);
851 if (lci_len) {
852 new->lci_len = lci_len;
853 new->lci = pos;
854 memcpy(pos, lci, lci_len);
855 pos += lci_len;
856 }
857
858 if (civicloc_len) {
859 new->civicloc_len = civicloc_len;
860 new->civicloc = pos;
861 memcpy(pos, civicloc, civicloc_len);
862 pos += civicloc_len;
863 }
864
865 bss_conf->ftmr_params = new;
866 kfree(old);
867
868 return 0;
869 }
870
ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa)871 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
872 struct cfg80211_beacon_data *params,
873 const struct ieee80211_csa_settings *csa)
874 {
875 struct beacon_data *new, *old;
876 int new_head_len, new_tail_len;
877 int size, err;
878 u32 changed = BSS_CHANGED_BEACON;
879
880 old = sdata_dereference(sdata->u.ap.beacon, sdata);
881
882
883 /* Need to have a beacon head if we don't have one yet */
884 if (!params->head && !old)
885 return -EINVAL;
886
887 /* new or old head? */
888 if (params->head)
889 new_head_len = params->head_len;
890 else
891 new_head_len = old->head_len;
892
893 /* new or old tail? */
894 if (params->tail || !old)
895 /* params->tail_len will be zero for !params->tail */
896 new_tail_len = params->tail_len;
897 else
898 new_tail_len = old->tail_len;
899
900 size = sizeof(*new) + new_head_len + new_tail_len;
901
902 new = kzalloc(size, GFP_KERNEL);
903 if (!new)
904 return -ENOMEM;
905
906 /* start filling the new info now */
907
908 /*
909 * pointers go into the block we allocated,
910 * memory is | beacon_data | head | tail |
911 */
912 new->head = ((u8 *) new) + sizeof(*new);
913 new->tail = new->head + new_head_len;
914 new->head_len = new_head_len;
915 new->tail_len = new_tail_len;
916
917 if (csa) {
918 new->csa_current_counter = csa->count;
919 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
920 csa->n_counter_offsets_beacon *
921 sizeof(new->csa_counter_offsets[0]));
922 }
923
924 /* copy in head */
925 if (params->head)
926 memcpy(new->head, params->head, new_head_len);
927 else
928 memcpy(new->head, old->head, new_head_len);
929
930 /* copy in optional tail */
931 if (params->tail)
932 memcpy(new->tail, params->tail, new_tail_len);
933 else
934 if (old)
935 memcpy(new->tail, old->tail, new_tail_len);
936
937 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
938 params->probe_resp_len, csa);
939 if (err < 0) {
940 kfree(new);
941 return err;
942 }
943 if (err == 0)
944 changed |= BSS_CHANGED_AP_PROBE_RESP;
945
946 if (params->ftm_responder != -1) {
947 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
948 err = ieee80211_set_ftm_responder_params(sdata,
949 params->lci,
950 params->lci_len,
951 params->civicloc,
952 params->civicloc_len);
953
954 if (err < 0) {
955 kfree(new);
956 return err;
957 }
958
959 changed |= BSS_CHANGED_FTM_RESPONDER;
960 }
961
962 rcu_assign_pointer(sdata->u.ap.beacon, new);
963
964 if (old)
965 kfree_rcu(old, rcu_head);
966
967 return changed;
968 }
969
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)970 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
971 struct cfg80211_ap_settings *params)
972 {
973 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
974 struct ieee80211_local *local = sdata->local;
975 struct beacon_data *old;
976 struct ieee80211_sub_if_data *vlan;
977 u32 changed = BSS_CHANGED_BEACON_INT |
978 BSS_CHANGED_BEACON_ENABLED |
979 BSS_CHANGED_BEACON |
980 BSS_CHANGED_SSID |
981 BSS_CHANGED_P2P_PS |
982 BSS_CHANGED_TXPOWER |
983 BSS_CHANGED_TWT |
984 BSS_CHANGED_HE_OBSS_PD;
985 int err;
986 int prev_beacon_int;
987
988 old = sdata_dereference(sdata->u.ap.beacon, sdata);
989 if (old)
990 return -EALREADY;
991
992 switch (params->smps_mode) {
993 case NL80211_SMPS_OFF:
994 sdata->smps_mode = IEEE80211_SMPS_OFF;
995 break;
996 case NL80211_SMPS_STATIC:
997 sdata->smps_mode = IEEE80211_SMPS_STATIC;
998 break;
999 case NL80211_SMPS_DYNAMIC:
1000 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
1001 break;
1002 default:
1003 return -EINVAL;
1004 }
1005 sdata->u.ap.req_smps = sdata->smps_mode;
1006
1007 sdata->needed_rx_chains = sdata->local->rx_chains;
1008
1009 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1010 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1011
1012 if (params->he_cap)
1013 sdata->vif.bss_conf.he_support = true;
1014
1015 mutex_lock(&local->mtx);
1016 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
1017 IEEE80211_CHANCTX_SHARED);
1018 if (!err)
1019 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1020 mutex_unlock(&local->mtx);
1021 if (err) {
1022 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1023 return err;
1024 }
1025
1026 /*
1027 * Apply control port protocol, this allows us to
1028 * not encrypt dynamic WEP control frames.
1029 */
1030 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1031 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1032 sdata->control_port_over_nl80211 =
1033 params->crypto.control_port_over_nl80211;
1034 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1035 ¶ms->crypto,
1036 sdata->vif.type);
1037
1038 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1039 vlan->control_port_protocol =
1040 params->crypto.control_port_ethertype;
1041 vlan->control_port_no_encrypt =
1042 params->crypto.control_port_no_encrypt;
1043 vlan->control_port_over_nl80211 =
1044 params->crypto.control_port_over_nl80211;
1045 vlan->encrypt_headroom =
1046 ieee80211_cs_headroom(sdata->local,
1047 ¶ms->crypto,
1048 vlan->vif.type);
1049 }
1050
1051 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1052 sdata->vif.bss_conf.enable_beacon = true;
1053 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1054 sdata->vif.bss_conf.twt_responder = params->twt_responder;
1055 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd,
1056 sizeof(struct ieee80211_he_obss_pd));
1057
1058 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1059 if (params->ssid_len)
1060 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1061 params->ssid_len);
1062 sdata->vif.bss_conf.hidden_ssid =
1063 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1064
1065 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1066 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1067 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1068 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1069 if (params->p2p_opp_ps)
1070 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1071 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1072
1073 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL);
1074 if (err < 0) {
1075 ieee80211_vif_release_channel(sdata);
1076 return err;
1077 }
1078 changed |= err;
1079
1080 err = drv_start_ap(sdata->local, sdata);
1081 if (err) {
1082 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1083
1084 if (old)
1085 kfree_rcu(old, rcu_head);
1086 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1087 ieee80211_vif_release_channel(sdata);
1088 return err;
1089 }
1090
1091 ieee80211_recalc_dtim(local, sdata);
1092 ieee80211_bss_info_change_notify(sdata, changed);
1093
1094 netif_carrier_on(dev);
1095 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1096 netif_carrier_on(vlan->dev);
1097
1098 return 0;
1099 }
1100
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * params)1101 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1102 struct cfg80211_beacon_data *params)
1103 {
1104 struct ieee80211_sub_if_data *sdata;
1105 struct beacon_data *old;
1106 int err;
1107
1108 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1109 sdata_assert_lock(sdata);
1110
1111 /* don't allow changing the beacon while CSA is in place - offset
1112 * of channel switch counter may change
1113 */
1114 if (sdata->vif.csa_active)
1115 return -EBUSY;
1116
1117 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1118 if (!old)
1119 return -ENOENT;
1120
1121 err = ieee80211_assign_beacon(sdata, params, NULL);
1122 if (err < 0)
1123 return err;
1124 ieee80211_bss_info_change_notify(sdata, err);
1125 return 0;
1126 }
1127
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev)1128 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1129 {
1130 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1131 struct ieee80211_sub_if_data *vlan;
1132 struct ieee80211_local *local = sdata->local;
1133 struct beacon_data *old_beacon;
1134 struct probe_resp *old_probe_resp;
1135 struct cfg80211_chan_def chandef;
1136
1137 sdata_assert_lock(sdata);
1138
1139 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1140 if (!old_beacon)
1141 return -ENOENT;
1142 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1143
1144 /* abort any running channel switch */
1145 mutex_lock(&local->mtx);
1146 sdata->vif.csa_active = false;
1147 if (sdata->csa_block_tx) {
1148 ieee80211_wake_vif_queues(local, sdata,
1149 IEEE80211_QUEUE_STOP_REASON_CSA);
1150 sdata->csa_block_tx = false;
1151 }
1152
1153 mutex_unlock(&local->mtx);
1154
1155 kfree(sdata->u.ap.next_beacon);
1156 sdata->u.ap.next_beacon = NULL;
1157
1158 /* turn off carrier for this interface and dependent VLANs */
1159 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1160 netif_carrier_off(vlan->dev);
1161 netif_carrier_off(dev);
1162
1163 /* remove beacon and probe response */
1164 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1165 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1166 kfree_rcu(old_beacon, rcu_head);
1167 if (old_probe_resp)
1168 kfree_rcu(old_probe_resp, rcu_head);
1169 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1170
1171 kfree(sdata->vif.bss_conf.ftmr_params);
1172 sdata->vif.bss_conf.ftmr_params = NULL;
1173
1174 __sta_info_flush(sdata, true);
1175 ieee80211_free_keys(sdata, true);
1176
1177 sdata->vif.bss_conf.enable_beacon = false;
1178 sdata->vif.bss_conf.ssid_len = 0;
1179 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1180 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1181
1182 if (sdata->wdev.cac_started) {
1183 chandef = sdata->vif.bss_conf.chandef;
1184 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1185 cfg80211_cac_event(sdata->dev, &chandef,
1186 NL80211_RADAR_CAC_ABORTED,
1187 GFP_KERNEL);
1188 }
1189
1190 drv_stop_ap(sdata->local, sdata);
1191
1192 /* free all potentially still buffered bcast frames */
1193 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1194 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1195
1196 mutex_lock(&local->mtx);
1197 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1198 ieee80211_vif_release_channel(sdata);
1199 mutex_unlock(&local->mtx);
1200
1201 return 0;
1202 }
1203
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1204 static int sta_apply_auth_flags(struct ieee80211_local *local,
1205 struct sta_info *sta,
1206 u32 mask, u32 set)
1207 {
1208 int ret;
1209
1210 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1211 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1212 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1213 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1214 if (ret)
1215 return ret;
1216 }
1217
1218 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1219 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1220 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1221 /*
1222 * When peer becomes associated, init rate control as
1223 * well. Some drivers require rate control initialized
1224 * before drv_sta_state() is called.
1225 */
1226 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1227 rate_control_rate_init(sta);
1228
1229 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1230 if (ret)
1231 return ret;
1232 }
1233
1234 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1235 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1236 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1237 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1238 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1239 else
1240 ret = 0;
1241 if (ret)
1242 return ret;
1243 }
1244
1245 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1246 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1247 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1248 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1249 if (ret)
1250 return ret;
1251 }
1252
1253 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1254 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1255 test_sta_flag(sta, WLAN_STA_AUTH)) {
1256 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1257 if (ret)
1258 return ret;
1259 }
1260
1261 return 0;
1262 }
1263
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1264 static void sta_apply_mesh_params(struct ieee80211_local *local,
1265 struct sta_info *sta,
1266 struct station_parameters *params)
1267 {
1268 #ifdef CONFIG_MAC80211_MESH
1269 struct ieee80211_sub_if_data *sdata = sta->sdata;
1270 u32 changed = 0;
1271
1272 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1273 switch (params->plink_state) {
1274 case NL80211_PLINK_ESTAB:
1275 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1276 changed = mesh_plink_inc_estab_count(sdata);
1277 sta->mesh->plink_state = params->plink_state;
1278 sta->mesh->aid = params->peer_aid;
1279
1280 ieee80211_mps_sta_status_update(sta);
1281 changed |= ieee80211_mps_set_sta_local_pm(sta,
1282 sdata->u.mesh.mshcfg.power_mode);
1283
1284 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1285 /* init at low value */
1286 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1287
1288 break;
1289 case NL80211_PLINK_LISTEN:
1290 case NL80211_PLINK_BLOCKED:
1291 case NL80211_PLINK_OPN_SNT:
1292 case NL80211_PLINK_OPN_RCVD:
1293 case NL80211_PLINK_CNF_RCVD:
1294 case NL80211_PLINK_HOLDING:
1295 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1296 changed = mesh_plink_dec_estab_count(sdata);
1297 sta->mesh->plink_state = params->plink_state;
1298
1299 ieee80211_mps_sta_status_update(sta);
1300 changed |= ieee80211_mps_set_sta_local_pm(sta,
1301 NL80211_MESH_POWER_UNKNOWN);
1302 break;
1303 default:
1304 /* nothing */
1305 break;
1306 }
1307 }
1308
1309 switch (params->plink_action) {
1310 case NL80211_PLINK_ACTION_NO_ACTION:
1311 /* nothing */
1312 break;
1313 case NL80211_PLINK_ACTION_OPEN:
1314 changed |= mesh_plink_open(sta);
1315 break;
1316 case NL80211_PLINK_ACTION_BLOCK:
1317 changed |= mesh_plink_block(sta);
1318 break;
1319 }
1320
1321 if (params->local_pm)
1322 changed |= ieee80211_mps_set_sta_local_pm(sta,
1323 params->local_pm);
1324
1325 ieee80211_mbss_info_change_notify(sdata, changed);
1326 #endif
1327 }
1328
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1329 static int sta_apply_parameters(struct ieee80211_local *local,
1330 struct sta_info *sta,
1331 struct station_parameters *params)
1332 {
1333 int ret = 0;
1334 struct ieee80211_supported_band *sband;
1335 struct ieee80211_sub_if_data *sdata = sta->sdata;
1336 u32 mask, set;
1337
1338 sband = ieee80211_get_sband(sdata);
1339 if (!sband)
1340 return -EINVAL;
1341
1342 mask = params->sta_flags_mask;
1343 set = params->sta_flags_set;
1344
1345 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1346 /*
1347 * In mesh mode, ASSOCIATED isn't part of the nl80211
1348 * API but must follow AUTHENTICATED for driver state.
1349 */
1350 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1351 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1352 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1353 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1354 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1355 /*
1356 * TDLS -- everything follows authorized, but
1357 * only becoming authorized is possible, not
1358 * going back
1359 */
1360 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1361 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1362 BIT(NL80211_STA_FLAG_ASSOCIATED);
1363 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1364 BIT(NL80211_STA_FLAG_ASSOCIATED);
1365 }
1366 }
1367
1368 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1369 local->hw.queues >= IEEE80211_NUM_ACS)
1370 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1371
1372 /* auth flags will be set later for TDLS,
1373 * and for unassociated stations that move to assocaited */
1374 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1375 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1376 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1377 ret = sta_apply_auth_flags(local, sta, mask, set);
1378 if (ret)
1379 return ret;
1380 }
1381
1382 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1383 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1384 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1385 else
1386 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1387 }
1388
1389 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1390 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1391 if (set & BIT(NL80211_STA_FLAG_MFP))
1392 set_sta_flag(sta, WLAN_STA_MFP);
1393 else
1394 clear_sta_flag(sta, WLAN_STA_MFP);
1395 }
1396
1397 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1398 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1399 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1400 else
1401 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1402 }
1403
1404 /* mark TDLS channel switch support, if the AP allows it */
1405 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1406 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1407 params->ext_capab_len >= 4 &&
1408 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1409 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1410
1411 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1412 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1413 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1414 params->ext_capab_len >= 8 &&
1415 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1416 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1417
1418 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1419 sta->sta.uapsd_queues = params->uapsd_queues;
1420 sta->sta.max_sp = params->max_sp;
1421 }
1422
1423 /* The sender might not have sent the last bit, consider it to be 0 */
1424 if (params->ext_capab_len >= 8) {
1425 u8 val = (params->ext_capab[7] &
1426 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1427
1428 /* we did get all the bits, take the MSB as well */
1429 if (params->ext_capab_len >= 9) {
1430 u8 val_msb = params->ext_capab[8] &
1431 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1432 val_msb <<= 1;
1433 val |= val_msb;
1434 }
1435
1436 switch (val) {
1437 case 1:
1438 sta->sta.max_amsdu_subframes = 32;
1439 break;
1440 case 2:
1441 sta->sta.max_amsdu_subframes = 16;
1442 break;
1443 case 3:
1444 sta->sta.max_amsdu_subframes = 8;
1445 break;
1446 default:
1447 sta->sta.max_amsdu_subframes = 0;
1448 }
1449 }
1450
1451 /*
1452 * cfg80211 validates this (1-2007) and allows setting the AID
1453 * only when creating a new station entry
1454 */
1455 if (params->aid)
1456 sta->sta.aid = params->aid;
1457
1458 /*
1459 * Some of the following updates would be racy if called on an
1460 * existing station, via ieee80211_change_station(). However,
1461 * all such changes are rejected by cfg80211 except for updates
1462 * changing the supported rates on an existing but not yet used
1463 * TDLS peer.
1464 */
1465
1466 if (params->listen_interval >= 0)
1467 sta->listen_interval = params->listen_interval;
1468
1469 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1470 sta->sta.txpwr.type = params->txpwr.type;
1471 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1472 sta->sta.txpwr.power = params->txpwr.power;
1473 ret = drv_sta_set_txpwr(local, sdata, sta);
1474 if (ret)
1475 return ret;
1476 }
1477
1478 if (params->supported_rates && params->supported_rates_len) {
1479 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1480 sband, params->supported_rates,
1481 params->supported_rates_len,
1482 &sta->sta.supp_rates[sband->band]);
1483 }
1484
1485 if (params->ht_capa)
1486 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1487 params->ht_capa, sta);
1488
1489 /* VHT can override some HT caps such as the A-MSDU max length */
1490 if (params->vht_capa)
1491 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1492 params->vht_capa, sta);
1493
1494 if (params->he_capa)
1495 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1496 (void *)params->he_capa,
1497 params->he_capa_len, sta);
1498
1499 if (params->opmode_notif_used) {
1500 /* returned value is only needed for rc update, but the
1501 * rc isn't initialized here yet, so ignore it
1502 */
1503 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1504 sband->band);
1505 }
1506
1507 if (params->support_p2p_ps >= 0)
1508 sta->sta.support_p2p_ps = params->support_p2p_ps;
1509
1510 if (ieee80211_vif_is_mesh(&sdata->vif))
1511 sta_apply_mesh_params(local, sta, params);
1512
1513 if (params->airtime_weight)
1514 sta->airtime_weight = params->airtime_weight;
1515
1516 /* set the STA state after all sta info from usermode has been set */
1517 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
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 return 0;
1525 }
1526
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1527 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1528 const u8 *mac,
1529 struct station_parameters *params)
1530 {
1531 struct ieee80211_local *local = wiphy_priv(wiphy);
1532 struct sta_info *sta;
1533 struct ieee80211_sub_if_data *sdata;
1534 int err;
1535
1536 if (params->vlan) {
1537 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1538
1539 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1540 sdata->vif.type != NL80211_IFTYPE_AP)
1541 return -EINVAL;
1542 } else
1543 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1544
1545 if (ether_addr_equal(mac, sdata->vif.addr))
1546 return -EINVAL;
1547
1548 if (!is_valid_ether_addr(mac))
1549 return -EINVAL;
1550
1551 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1552 sdata->vif.type == NL80211_IFTYPE_STATION &&
1553 !sdata->u.mgd.associated)
1554 return -EINVAL;
1555
1556 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1557 if (!sta)
1558 return -ENOMEM;
1559
1560 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1561 sta->sta.tdls = true;
1562
1563 err = sta_apply_parameters(local, sta, params);
1564 if (err) {
1565 sta_info_free(local, sta);
1566 return err;
1567 }
1568
1569 /*
1570 * for TDLS and for unassociated station, rate control should be
1571 * initialized only when rates are known and station is marked
1572 * authorized/associated
1573 */
1574 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1575 test_sta_flag(sta, WLAN_STA_ASSOC))
1576 rate_control_rate_init(sta);
1577
1578 err = sta_info_insert_rcu(sta);
1579 if (err) {
1580 rcu_read_unlock();
1581 return err;
1582 }
1583
1584 rcu_read_unlock();
1585
1586 return 0;
1587 }
1588
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1589 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1590 struct station_del_parameters *params)
1591 {
1592 struct ieee80211_sub_if_data *sdata;
1593
1594 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1595
1596 if (params->mac)
1597 return sta_info_destroy_addr_bss(sdata, params->mac);
1598
1599 sta_info_flush(sdata);
1600 return 0;
1601 }
1602
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1603 static int ieee80211_change_station(struct wiphy *wiphy,
1604 struct net_device *dev, const u8 *mac,
1605 struct station_parameters *params)
1606 {
1607 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1608 struct ieee80211_local *local = wiphy_priv(wiphy);
1609 struct sta_info *sta;
1610 struct ieee80211_sub_if_data *vlansdata;
1611 enum cfg80211_station_type statype;
1612 int err;
1613
1614 mutex_lock(&local->sta_mtx);
1615
1616 sta = sta_info_get_bss(sdata, mac);
1617 if (!sta) {
1618 err = -ENOENT;
1619 goto out_err;
1620 }
1621
1622 switch (sdata->vif.type) {
1623 case NL80211_IFTYPE_MESH_POINT:
1624 if (sdata->u.mesh.user_mpm)
1625 statype = CFG80211_STA_MESH_PEER_USER;
1626 else
1627 statype = CFG80211_STA_MESH_PEER_KERNEL;
1628 break;
1629 case NL80211_IFTYPE_ADHOC:
1630 statype = CFG80211_STA_IBSS;
1631 break;
1632 case NL80211_IFTYPE_STATION:
1633 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1634 statype = CFG80211_STA_AP_STA;
1635 break;
1636 }
1637 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1638 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1639 else
1640 statype = CFG80211_STA_TDLS_PEER_SETUP;
1641 break;
1642 case NL80211_IFTYPE_AP:
1643 case NL80211_IFTYPE_AP_VLAN:
1644 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1645 statype = CFG80211_STA_AP_CLIENT;
1646 else
1647 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1648 break;
1649 default:
1650 err = -EOPNOTSUPP;
1651 goto out_err;
1652 }
1653
1654 err = cfg80211_check_station_change(wiphy, params, statype);
1655 if (err)
1656 goto out_err;
1657
1658 if (params->vlan && params->vlan != sta->sdata->dev) {
1659 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1660
1661 if (params->vlan->ieee80211_ptr->use_4addr) {
1662 if (vlansdata->u.vlan.sta) {
1663 err = -EBUSY;
1664 goto out_err;
1665 }
1666
1667 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1668 __ieee80211_check_fast_rx_iface(vlansdata);
1669 }
1670
1671 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1672 sta->sdata->u.vlan.sta)
1673 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1674
1675 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1676 ieee80211_vif_dec_num_mcast(sta->sdata);
1677
1678 sta->sdata = vlansdata;
1679 ieee80211_check_fast_xmit(sta);
1680
1681 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1682 ieee80211_vif_inc_num_mcast(sta->sdata);
1683 cfg80211_send_layer2_update(sta->sdata->dev,
1684 sta->sta.addr);
1685 }
1686 }
1687
1688 err = sta_apply_parameters(local, sta, params);
1689 if (err)
1690 goto out_err;
1691
1692 mutex_unlock(&local->sta_mtx);
1693
1694 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1695 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1696 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1697 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1698 sta_info_tx_streams(sta) != 1) {
1699 ht_dbg(sta->sdata,
1700 "%pM just authorized and MIMO capable - update SMPS\n",
1701 sta->sta.addr);
1702 ieee80211_send_smps_action(sta->sdata,
1703 sta->sdata->bss->req_smps,
1704 sta->sta.addr,
1705 sta->sdata->vif.bss_conf.bssid);
1706 }
1707
1708 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1709 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1710 ieee80211_recalc_ps(local);
1711 ieee80211_recalc_ps_vif(sdata);
1712 }
1713
1714 return 0;
1715 out_err:
1716 mutex_unlock(&local->sta_mtx);
1717 return err;
1718 }
1719
1720 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1721 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1722 const u8 *dst, const u8 *next_hop)
1723 {
1724 struct ieee80211_sub_if_data *sdata;
1725 struct mesh_path *mpath;
1726 struct sta_info *sta;
1727
1728 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1729
1730 rcu_read_lock();
1731 sta = sta_info_get(sdata, next_hop);
1732 if (!sta) {
1733 rcu_read_unlock();
1734 return -ENOENT;
1735 }
1736
1737 mpath = mesh_path_add(sdata, dst);
1738 if (IS_ERR(mpath)) {
1739 rcu_read_unlock();
1740 return PTR_ERR(mpath);
1741 }
1742
1743 mesh_path_fix_nexthop(mpath, sta);
1744
1745 rcu_read_unlock();
1746 return 0;
1747 }
1748
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)1749 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1750 const u8 *dst)
1751 {
1752 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1753
1754 if (dst)
1755 return mesh_path_del(sdata, dst);
1756
1757 mesh_path_flush_by_iface(sdata);
1758 return 0;
1759 }
1760
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1761 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1762 const u8 *dst, const u8 *next_hop)
1763 {
1764 struct ieee80211_sub_if_data *sdata;
1765 struct mesh_path *mpath;
1766 struct sta_info *sta;
1767
1768 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1769
1770 rcu_read_lock();
1771
1772 sta = sta_info_get(sdata, next_hop);
1773 if (!sta) {
1774 rcu_read_unlock();
1775 return -ENOENT;
1776 }
1777
1778 mpath = mesh_path_lookup(sdata, dst);
1779 if (!mpath) {
1780 rcu_read_unlock();
1781 return -ENOENT;
1782 }
1783
1784 mesh_path_fix_nexthop(mpath, sta);
1785
1786 rcu_read_unlock();
1787 return 0;
1788 }
1789
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)1790 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1791 struct mpath_info *pinfo)
1792 {
1793 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1794
1795 if (next_hop_sta)
1796 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1797 else
1798 eth_zero_addr(next_hop);
1799
1800 memset(pinfo, 0, sizeof(*pinfo));
1801
1802 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1803
1804 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1805 MPATH_INFO_SN |
1806 MPATH_INFO_METRIC |
1807 MPATH_INFO_EXPTIME |
1808 MPATH_INFO_DISCOVERY_TIMEOUT |
1809 MPATH_INFO_DISCOVERY_RETRIES |
1810 MPATH_INFO_FLAGS |
1811 MPATH_INFO_HOP_COUNT |
1812 MPATH_INFO_PATH_CHANGE;
1813
1814 pinfo->frame_qlen = mpath->frame_queue.qlen;
1815 pinfo->sn = mpath->sn;
1816 pinfo->metric = mpath->metric;
1817 if (time_before(jiffies, mpath->exp_time))
1818 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1819 pinfo->discovery_timeout =
1820 jiffies_to_msecs(mpath->discovery_timeout);
1821 pinfo->discovery_retries = mpath->discovery_retries;
1822 if (mpath->flags & MESH_PATH_ACTIVE)
1823 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1824 if (mpath->flags & MESH_PATH_RESOLVING)
1825 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1826 if (mpath->flags & MESH_PATH_SN_VALID)
1827 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1828 if (mpath->flags & MESH_PATH_FIXED)
1829 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1830 if (mpath->flags & MESH_PATH_RESOLVED)
1831 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1832 pinfo->hop_count = mpath->hop_count;
1833 pinfo->path_change_count = mpath->path_change_count;
1834 }
1835
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1836 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1837 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1838
1839 {
1840 struct ieee80211_sub_if_data *sdata;
1841 struct mesh_path *mpath;
1842
1843 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1844
1845 rcu_read_lock();
1846 mpath = mesh_path_lookup(sdata, dst);
1847 if (!mpath) {
1848 rcu_read_unlock();
1849 return -ENOENT;
1850 }
1851 memcpy(dst, mpath->dst, ETH_ALEN);
1852 mpath_set_pinfo(mpath, next_hop, pinfo);
1853 rcu_read_unlock();
1854 return 0;
1855 }
1856
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1857 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1858 int idx, u8 *dst, u8 *next_hop,
1859 struct mpath_info *pinfo)
1860 {
1861 struct ieee80211_sub_if_data *sdata;
1862 struct mesh_path *mpath;
1863
1864 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1865
1866 rcu_read_lock();
1867 mpath = mesh_path_lookup_by_idx(sdata, idx);
1868 if (!mpath) {
1869 rcu_read_unlock();
1870 return -ENOENT;
1871 }
1872 memcpy(dst, mpath->dst, ETH_ALEN);
1873 mpath_set_pinfo(mpath, next_hop, pinfo);
1874 rcu_read_unlock();
1875 return 0;
1876 }
1877
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)1878 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1879 struct mpath_info *pinfo)
1880 {
1881 memset(pinfo, 0, sizeof(*pinfo));
1882 memcpy(mpp, mpath->mpp, ETH_ALEN);
1883
1884 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1885 }
1886
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)1887 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1888 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1889
1890 {
1891 struct ieee80211_sub_if_data *sdata;
1892 struct mesh_path *mpath;
1893
1894 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1895
1896 rcu_read_lock();
1897 mpath = mpp_path_lookup(sdata, dst);
1898 if (!mpath) {
1899 rcu_read_unlock();
1900 return -ENOENT;
1901 }
1902 memcpy(dst, mpath->dst, ETH_ALEN);
1903 mpp_set_pinfo(mpath, mpp, pinfo);
1904 rcu_read_unlock();
1905 return 0;
1906 }
1907
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)1908 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1909 int idx, u8 *dst, u8 *mpp,
1910 struct mpath_info *pinfo)
1911 {
1912 struct ieee80211_sub_if_data *sdata;
1913 struct mesh_path *mpath;
1914
1915 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1916
1917 rcu_read_lock();
1918 mpath = mpp_path_lookup_by_idx(sdata, idx);
1919 if (!mpath) {
1920 rcu_read_unlock();
1921 return -ENOENT;
1922 }
1923 memcpy(dst, mpath->dst, ETH_ALEN);
1924 mpp_set_pinfo(mpath, mpp, pinfo);
1925 rcu_read_unlock();
1926 return 0;
1927 }
1928
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)1929 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1930 struct net_device *dev,
1931 struct mesh_config *conf)
1932 {
1933 struct ieee80211_sub_if_data *sdata;
1934 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1935
1936 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1937 return 0;
1938 }
1939
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)1940 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1941 {
1942 return (mask >> (parm-1)) & 0x1;
1943 }
1944
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)1945 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1946 const struct mesh_setup *setup)
1947 {
1948 u8 *new_ie;
1949 const u8 *old_ie;
1950 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1951 struct ieee80211_sub_if_data, u.mesh);
1952
1953 /* allocate information elements */
1954 new_ie = NULL;
1955 old_ie = ifmsh->ie;
1956
1957 if (setup->ie_len) {
1958 new_ie = kmemdup(setup->ie, setup->ie_len,
1959 GFP_KERNEL);
1960 if (!new_ie)
1961 return -ENOMEM;
1962 }
1963 ifmsh->ie_len = setup->ie_len;
1964 ifmsh->ie = new_ie;
1965 kfree(old_ie);
1966
1967 /* now copy the rest of the setup parameters */
1968 ifmsh->mesh_id_len = setup->mesh_id_len;
1969 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1970 ifmsh->mesh_sp_id = setup->sync_method;
1971 ifmsh->mesh_pp_id = setup->path_sel_proto;
1972 ifmsh->mesh_pm_id = setup->path_metric;
1973 ifmsh->user_mpm = setup->user_mpm;
1974 ifmsh->mesh_auth_id = setup->auth_id;
1975 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1976 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1977 if (setup->is_authenticated)
1978 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1979 if (setup->is_secure)
1980 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1981
1982 /* mcast rate setting in Mesh Node */
1983 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1984 sizeof(setup->mcast_rate));
1985 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1986
1987 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1988 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1989
1990 return 0;
1991 }
1992
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)1993 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1994 struct net_device *dev, u32 mask,
1995 const struct mesh_config *nconf)
1996 {
1997 struct mesh_config *conf;
1998 struct ieee80211_sub_if_data *sdata;
1999 struct ieee80211_if_mesh *ifmsh;
2000
2001 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2002 ifmsh = &sdata->u.mesh;
2003
2004 /* Set the config options which we are interested in setting */
2005 conf = &(sdata->u.mesh.mshcfg);
2006 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2007 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2008 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2009 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2010 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2011 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2012 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2013 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2014 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2015 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2016 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2017 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2018 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2019 conf->element_ttl = nconf->element_ttl;
2020 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2021 if (ifmsh->user_mpm)
2022 return -EBUSY;
2023 conf->auto_open_plinks = nconf->auto_open_plinks;
2024 }
2025 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2026 conf->dot11MeshNbrOffsetMaxNeighbor =
2027 nconf->dot11MeshNbrOffsetMaxNeighbor;
2028 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2029 conf->dot11MeshHWMPmaxPREQretries =
2030 nconf->dot11MeshHWMPmaxPREQretries;
2031 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2032 conf->path_refresh_time = nconf->path_refresh_time;
2033 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2034 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2035 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2036 conf->dot11MeshHWMPactivePathTimeout =
2037 nconf->dot11MeshHWMPactivePathTimeout;
2038 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2039 conf->dot11MeshHWMPpreqMinInterval =
2040 nconf->dot11MeshHWMPpreqMinInterval;
2041 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2042 conf->dot11MeshHWMPperrMinInterval =
2043 nconf->dot11MeshHWMPperrMinInterval;
2044 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2045 mask))
2046 conf->dot11MeshHWMPnetDiameterTraversalTime =
2047 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2048 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2049 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2050 ieee80211_mesh_root_setup(ifmsh);
2051 }
2052 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2053 /* our current gate announcement implementation rides on root
2054 * announcements, so require this ifmsh to also be a root node
2055 * */
2056 if (nconf->dot11MeshGateAnnouncementProtocol &&
2057 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2058 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2059 ieee80211_mesh_root_setup(ifmsh);
2060 }
2061 conf->dot11MeshGateAnnouncementProtocol =
2062 nconf->dot11MeshGateAnnouncementProtocol;
2063 }
2064 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2065 conf->dot11MeshHWMPRannInterval =
2066 nconf->dot11MeshHWMPRannInterval;
2067 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2068 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2069 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2070 /* our RSSI threshold implementation is supported only for
2071 * devices that report signal in dBm.
2072 */
2073 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2074 return -ENOTSUPP;
2075 conf->rssi_threshold = nconf->rssi_threshold;
2076 }
2077 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2078 conf->ht_opmode = nconf->ht_opmode;
2079 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2080 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2081 }
2082 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2083 conf->dot11MeshHWMPactivePathToRootTimeout =
2084 nconf->dot11MeshHWMPactivePathToRootTimeout;
2085 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2086 conf->dot11MeshHWMProotInterval =
2087 nconf->dot11MeshHWMProotInterval;
2088 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2089 conf->dot11MeshHWMPconfirmationInterval =
2090 nconf->dot11MeshHWMPconfirmationInterval;
2091 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2092 conf->power_mode = nconf->power_mode;
2093 ieee80211_mps_local_status_update(sdata);
2094 }
2095 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2096 conf->dot11MeshAwakeWindowDuration =
2097 nconf->dot11MeshAwakeWindowDuration;
2098 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2099 conf->plink_timeout = nconf->plink_timeout;
2100 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2101 conf->dot11MeshConnectedToMeshGate =
2102 nconf->dot11MeshConnectedToMeshGate;
2103 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2104 return 0;
2105 }
2106
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2107 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2108 const struct mesh_config *conf,
2109 const struct mesh_setup *setup)
2110 {
2111 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2112 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2113 int err;
2114
2115 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2116 err = copy_mesh_setup(ifmsh, setup);
2117 if (err)
2118 return err;
2119
2120 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2121
2122 /* can mesh use other SMPS modes? */
2123 sdata->smps_mode = IEEE80211_SMPS_OFF;
2124 sdata->needed_rx_chains = sdata->local->rx_chains;
2125
2126 mutex_lock(&sdata->local->mtx);
2127 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2128 IEEE80211_CHANCTX_SHARED);
2129 mutex_unlock(&sdata->local->mtx);
2130 if (err)
2131 return err;
2132
2133 return ieee80211_start_mesh(sdata);
2134 }
2135
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2136 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2137 {
2138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2139
2140 ieee80211_stop_mesh(sdata);
2141 mutex_lock(&sdata->local->mtx);
2142 ieee80211_vif_release_channel(sdata);
2143 mutex_unlock(&sdata->local->mtx);
2144
2145 return 0;
2146 }
2147 #endif
2148
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2149 static int ieee80211_change_bss(struct wiphy *wiphy,
2150 struct net_device *dev,
2151 struct bss_parameters *params)
2152 {
2153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2154 struct ieee80211_supported_band *sband;
2155 u32 changed = 0;
2156
2157 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2158 return -ENOENT;
2159
2160 sband = ieee80211_get_sband(sdata);
2161 if (!sband)
2162 return -EINVAL;
2163
2164 if (params->use_cts_prot >= 0) {
2165 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2166 changed |= BSS_CHANGED_ERP_CTS_PROT;
2167 }
2168 if (params->use_short_preamble >= 0) {
2169 sdata->vif.bss_conf.use_short_preamble =
2170 params->use_short_preamble;
2171 changed |= BSS_CHANGED_ERP_PREAMBLE;
2172 }
2173
2174 if (!sdata->vif.bss_conf.use_short_slot &&
2175 sband->band == NL80211_BAND_5GHZ) {
2176 sdata->vif.bss_conf.use_short_slot = true;
2177 changed |= BSS_CHANGED_ERP_SLOT;
2178 }
2179
2180 if (params->use_short_slot_time >= 0) {
2181 sdata->vif.bss_conf.use_short_slot =
2182 params->use_short_slot_time;
2183 changed |= BSS_CHANGED_ERP_SLOT;
2184 }
2185
2186 if (params->basic_rates) {
2187 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2188 wiphy->bands[sband->band],
2189 params->basic_rates,
2190 params->basic_rates_len,
2191 &sdata->vif.bss_conf.basic_rates);
2192 changed |= BSS_CHANGED_BASIC_RATES;
2193 ieee80211_check_rate_mask(sdata);
2194 }
2195
2196 if (params->ap_isolate >= 0) {
2197 if (params->ap_isolate)
2198 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2199 else
2200 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2201 ieee80211_check_fast_rx_iface(sdata);
2202 }
2203
2204 if (params->ht_opmode >= 0) {
2205 sdata->vif.bss_conf.ht_operation_mode =
2206 (u16) params->ht_opmode;
2207 changed |= BSS_CHANGED_HT;
2208 }
2209
2210 if (params->p2p_ctwindow >= 0) {
2211 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2212 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2213 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2214 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2215 changed |= BSS_CHANGED_P2P_PS;
2216 }
2217
2218 if (params->p2p_opp_ps > 0) {
2219 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2220 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2221 changed |= BSS_CHANGED_P2P_PS;
2222 } else if (params->p2p_opp_ps == 0) {
2223 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2224 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2225 changed |= BSS_CHANGED_P2P_PS;
2226 }
2227
2228 ieee80211_bss_info_change_notify(sdata, changed);
2229
2230 return 0;
2231 }
2232
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2233 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2234 struct net_device *dev,
2235 struct ieee80211_txq_params *params)
2236 {
2237 struct ieee80211_local *local = wiphy_priv(wiphy);
2238 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2239 struct ieee80211_tx_queue_params p;
2240
2241 if (!local->ops->conf_tx)
2242 return -EOPNOTSUPP;
2243
2244 if (local->hw.queues < IEEE80211_NUM_ACS)
2245 return -EOPNOTSUPP;
2246
2247 memset(&p, 0, sizeof(p));
2248 p.aifs = params->aifs;
2249 p.cw_max = params->cwmax;
2250 p.cw_min = params->cwmin;
2251 p.txop = params->txop;
2252
2253 /*
2254 * Setting tx queue params disables u-apsd because it's only
2255 * called in master mode.
2256 */
2257 p.uapsd = false;
2258
2259 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2260
2261 sdata->tx_conf[params->ac] = p;
2262 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2263 wiphy_debug(local->hw.wiphy,
2264 "failed to set TX queue parameters for AC %d\n",
2265 params->ac);
2266 return -EINVAL;
2267 }
2268
2269 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2270
2271 return 0;
2272 }
2273
2274 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2275 static int ieee80211_suspend(struct wiphy *wiphy,
2276 struct cfg80211_wowlan *wowlan)
2277 {
2278 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2279 }
2280
ieee80211_resume(struct wiphy * wiphy)2281 static int ieee80211_resume(struct wiphy *wiphy)
2282 {
2283 return __ieee80211_resume(wiphy_priv(wiphy));
2284 }
2285 #else
2286 #define ieee80211_suspend NULL
2287 #define ieee80211_resume NULL
2288 #endif
2289
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2290 static int ieee80211_scan(struct wiphy *wiphy,
2291 struct cfg80211_scan_request *req)
2292 {
2293 struct ieee80211_sub_if_data *sdata;
2294
2295 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2296
2297 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2298 case NL80211_IFTYPE_STATION:
2299 case NL80211_IFTYPE_ADHOC:
2300 case NL80211_IFTYPE_MESH_POINT:
2301 case NL80211_IFTYPE_P2P_CLIENT:
2302 case NL80211_IFTYPE_P2P_DEVICE:
2303 break;
2304 case NL80211_IFTYPE_P2P_GO:
2305 if (sdata->local->ops->hw_scan)
2306 break;
2307 /*
2308 * FIXME: implement NoA while scanning in software,
2309 * for now fall through to allow scanning only when
2310 * beaconing hasn't been configured yet
2311 */
2312 /* fall through */
2313 case NL80211_IFTYPE_AP:
2314 /*
2315 * If the scan has been forced (and the driver supports
2316 * forcing), don't care about being beaconing already.
2317 * This will create problems to the attached stations (e.g. all
2318 * the frames sent while scanning on other channel will be
2319 * lost)
2320 */
2321 if (sdata->u.ap.beacon &&
2322 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2323 !(req->flags & NL80211_SCAN_FLAG_AP)))
2324 return -EOPNOTSUPP;
2325 break;
2326 case NL80211_IFTYPE_NAN:
2327 default:
2328 return -EOPNOTSUPP;
2329 }
2330
2331 return ieee80211_request_scan(sdata, req);
2332 }
2333
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2334 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2335 {
2336 ieee80211_scan_cancel(wiphy_priv(wiphy));
2337 }
2338
2339 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2340 ieee80211_sched_scan_start(struct wiphy *wiphy,
2341 struct net_device *dev,
2342 struct cfg80211_sched_scan_request *req)
2343 {
2344 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2345
2346 if (!sdata->local->ops->sched_scan_start)
2347 return -EOPNOTSUPP;
2348
2349 return ieee80211_request_sched_scan_start(sdata, req);
2350 }
2351
2352 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2353 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2354 u64 reqid)
2355 {
2356 struct ieee80211_local *local = wiphy_priv(wiphy);
2357
2358 if (!local->ops->sched_scan_stop)
2359 return -EOPNOTSUPP;
2360
2361 return ieee80211_request_sched_scan_stop(local);
2362 }
2363
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2364 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2365 struct cfg80211_auth_request *req)
2366 {
2367 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2368 }
2369
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2370 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2371 struct cfg80211_assoc_request *req)
2372 {
2373 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2374 }
2375
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2376 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2377 struct cfg80211_deauth_request *req)
2378 {
2379 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2380 }
2381
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2382 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2383 struct cfg80211_disassoc_request *req)
2384 {
2385 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2386 }
2387
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2388 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2389 struct cfg80211_ibss_params *params)
2390 {
2391 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2392 }
2393
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2394 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2395 {
2396 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2397 }
2398
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2399 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2400 struct ocb_setup *setup)
2401 {
2402 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2403 }
2404
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2405 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2406 {
2407 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2408 }
2409
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2410 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2411 int rate[NUM_NL80211_BANDS])
2412 {
2413 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2414
2415 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2416 sizeof(int) * NUM_NL80211_BANDS);
2417
2418 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2419
2420 return 0;
2421 }
2422
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2423 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2424 {
2425 struct ieee80211_local *local = wiphy_priv(wiphy);
2426 int err;
2427
2428 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2429 ieee80211_check_fast_xmit_all(local);
2430
2431 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2432
2433 if (err) {
2434 ieee80211_check_fast_xmit_all(local);
2435 return err;
2436 }
2437 }
2438
2439 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2440 (changed & WIPHY_PARAM_DYN_ACK)) {
2441 s16 coverage_class;
2442
2443 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2444 wiphy->coverage_class : -1;
2445 err = drv_set_coverage_class(local, coverage_class);
2446
2447 if (err)
2448 return err;
2449 }
2450
2451 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2452 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2453
2454 if (err)
2455 return err;
2456 }
2457
2458 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2459 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2460 return -EINVAL;
2461 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2462 }
2463 if (changed & WIPHY_PARAM_RETRY_LONG) {
2464 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2465 return -EINVAL;
2466 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2467 }
2468 if (changed &
2469 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2470 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2471
2472 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2473 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2474 WIPHY_PARAM_TXQ_QUANTUM))
2475 ieee80211_txq_set_params(local);
2476
2477 return 0;
2478 }
2479
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)2480 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2481 struct wireless_dev *wdev,
2482 enum nl80211_tx_power_setting type, int mbm)
2483 {
2484 struct ieee80211_local *local = wiphy_priv(wiphy);
2485 struct ieee80211_sub_if_data *sdata;
2486 enum nl80211_tx_power_setting txp_type = type;
2487 bool update_txp_type = false;
2488 bool has_monitor = false;
2489
2490 if (wdev) {
2491 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2492
2493 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2494 sdata = rtnl_dereference(local->monitor_sdata);
2495 if (!sdata)
2496 return -EOPNOTSUPP;
2497 }
2498
2499 switch (type) {
2500 case NL80211_TX_POWER_AUTOMATIC:
2501 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2502 txp_type = NL80211_TX_POWER_LIMITED;
2503 break;
2504 case NL80211_TX_POWER_LIMITED:
2505 case NL80211_TX_POWER_FIXED:
2506 if (mbm < 0 || (mbm % 100))
2507 return -EOPNOTSUPP;
2508 sdata->user_power_level = MBM_TO_DBM(mbm);
2509 break;
2510 }
2511
2512 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2513 update_txp_type = true;
2514 sdata->vif.bss_conf.txpower_type = txp_type;
2515 }
2516
2517 ieee80211_recalc_txpower(sdata, update_txp_type);
2518
2519 return 0;
2520 }
2521
2522 switch (type) {
2523 case NL80211_TX_POWER_AUTOMATIC:
2524 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2525 txp_type = NL80211_TX_POWER_LIMITED;
2526 break;
2527 case NL80211_TX_POWER_LIMITED:
2528 case NL80211_TX_POWER_FIXED:
2529 if (mbm < 0 || (mbm % 100))
2530 return -EOPNOTSUPP;
2531 local->user_power_level = MBM_TO_DBM(mbm);
2532 break;
2533 }
2534
2535 mutex_lock(&local->iflist_mtx);
2536 list_for_each_entry(sdata, &local->interfaces, list) {
2537 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2538 has_monitor = true;
2539 continue;
2540 }
2541 sdata->user_power_level = local->user_power_level;
2542 if (txp_type != sdata->vif.bss_conf.txpower_type)
2543 update_txp_type = true;
2544 sdata->vif.bss_conf.txpower_type = txp_type;
2545 }
2546 list_for_each_entry(sdata, &local->interfaces, list) {
2547 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2548 continue;
2549 ieee80211_recalc_txpower(sdata, update_txp_type);
2550 }
2551 mutex_unlock(&local->iflist_mtx);
2552
2553 if (has_monitor) {
2554 sdata = rtnl_dereference(local->monitor_sdata);
2555 if (sdata) {
2556 sdata->user_power_level = local->user_power_level;
2557 if (txp_type != sdata->vif.bss_conf.txpower_type)
2558 update_txp_type = true;
2559 sdata->vif.bss_conf.txpower_type = txp_type;
2560
2561 ieee80211_recalc_txpower(sdata, update_txp_type);
2562 }
2563 }
2564
2565 return 0;
2566 }
2567
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)2568 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2569 struct wireless_dev *wdev,
2570 int *dbm)
2571 {
2572 struct ieee80211_local *local = wiphy_priv(wiphy);
2573 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2574
2575 if (local->ops->get_txpower)
2576 return drv_get_txpower(local, sdata, dbm);
2577
2578 if (!local->use_chanctx)
2579 *dbm = local->hw.conf.power_level;
2580 else
2581 *dbm = sdata->vif.bss_conf.txpower;
2582
2583 return 0;
2584 }
2585
ieee80211_set_wds_peer(struct wiphy * wiphy,struct net_device * dev,const u8 * addr)2586 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2587 const u8 *addr)
2588 {
2589 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2590
2591 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2592
2593 return 0;
2594 }
2595
ieee80211_rfkill_poll(struct wiphy * wiphy)2596 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2597 {
2598 struct ieee80211_local *local = wiphy_priv(wiphy);
2599
2600 drv_rfkill_poll(local);
2601 }
2602
2603 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)2604 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2605 struct wireless_dev *wdev,
2606 void *data, int len)
2607 {
2608 struct ieee80211_local *local = wiphy_priv(wiphy);
2609 struct ieee80211_vif *vif = NULL;
2610
2611 if (!local->ops->testmode_cmd)
2612 return -EOPNOTSUPP;
2613
2614 if (wdev) {
2615 struct ieee80211_sub_if_data *sdata;
2616
2617 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2618 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2619 vif = &sdata->vif;
2620 }
2621
2622 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2623 }
2624
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)2625 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2626 struct sk_buff *skb,
2627 struct netlink_callback *cb,
2628 void *data, int len)
2629 {
2630 struct ieee80211_local *local = wiphy_priv(wiphy);
2631
2632 if (!local->ops->testmode_dump)
2633 return -EOPNOTSUPP;
2634
2635 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2636 }
2637 #endif
2638
__ieee80211_request_smps_ap(struct ieee80211_sub_if_data * sdata,enum ieee80211_smps_mode smps_mode)2639 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2640 enum ieee80211_smps_mode smps_mode)
2641 {
2642 struct sta_info *sta;
2643 enum ieee80211_smps_mode old_req;
2644
2645 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2646 return -EINVAL;
2647
2648 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2649 return 0;
2650
2651 old_req = sdata->u.ap.req_smps;
2652 sdata->u.ap.req_smps = smps_mode;
2653
2654 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2655 if (old_req == smps_mode ||
2656 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2657 return 0;
2658
2659 ht_dbg(sdata,
2660 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2661 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2662
2663 mutex_lock(&sdata->local->sta_mtx);
2664 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2665 /*
2666 * Only stations associated to our AP and
2667 * associated VLANs
2668 */
2669 if (sta->sdata->bss != &sdata->u.ap)
2670 continue;
2671
2672 /* This station doesn't support MIMO - skip it */
2673 if (sta_info_tx_streams(sta) == 1)
2674 continue;
2675
2676 /*
2677 * Don't wake up a STA just to send the action frame
2678 * unless we are getting more restrictive.
2679 */
2680 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2681 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2682 smps_mode)) {
2683 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2684 sta->sta.addr);
2685 continue;
2686 }
2687
2688 /*
2689 * If the STA is not authorized, wait until it gets
2690 * authorized and the action frame will be sent then.
2691 */
2692 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2693 continue;
2694
2695 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2696 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2697 sdata->vif.bss_conf.bssid);
2698 }
2699 mutex_unlock(&sdata->local->sta_mtx);
2700
2701 sdata->smps_mode = smps_mode;
2702 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2703
2704 return 0;
2705 }
2706
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,enum ieee80211_smps_mode smps_mode)2707 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2708 enum ieee80211_smps_mode smps_mode)
2709 {
2710 const u8 *ap;
2711 enum ieee80211_smps_mode old_req;
2712 int err;
2713 struct sta_info *sta;
2714 bool tdls_peer_found = false;
2715
2716 lockdep_assert_held(&sdata->wdev.mtx);
2717
2718 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2719 return -EINVAL;
2720
2721 old_req = sdata->u.mgd.req_smps;
2722 sdata->u.mgd.req_smps = smps_mode;
2723
2724 if (old_req == smps_mode &&
2725 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2726 return 0;
2727
2728 /*
2729 * If not associated, or current association is not an HT
2730 * association, there's no need to do anything, just store
2731 * the new value until we associate.
2732 */
2733 if (!sdata->u.mgd.associated ||
2734 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2735 return 0;
2736
2737 ap = sdata->u.mgd.associated->bssid;
2738
2739 rcu_read_lock();
2740 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2741 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2742 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2743 continue;
2744
2745 tdls_peer_found = true;
2746 break;
2747 }
2748 rcu_read_unlock();
2749
2750 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2751 if (tdls_peer_found || !sdata->u.mgd.powersave)
2752 smps_mode = IEEE80211_SMPS_OFF;
2753 else
2754 smps_mode = IEEE80211_SMPS_DYNAMIC;
2755 }
2756
2757 /* send SM PS frame to AP */
2758 err = ieee80211_send_smps_action(sdata, smps_mode,
2759 ap, ap);
2760 if (err)
2761 sdata->u.mgd.req_smps = old_req;
2762 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2763 ieee80211_teardown_tdls_peers(sdata);
2764
2765 return err;
2766 }
2767
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)2768 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2769 bool enabled, int timeout)
2770 {
2771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2772 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2773
2774 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2775 return -EOPNOTSUPP;
2776
2777 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2778 return -EOPNOTSUPP;
2779
2780 if (enabled == sdata->u.mgd.powersave &&
2781 timeout == local->dynamic_ps_forced_timeout)
2782 return 0;
2783
2784 sdata->u.mgd.powersave = enabled;
2785 local->dynamic_ps_forced_timeout = timeout;
2786
2787 /* no change, but if automatic follow powersave */
2788 sdata_lock(sdata);
2789 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2790 sdata_unlock(sdata);
2791
2792 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2793 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2794
2795 ieee80211_recalc_ps(local);
2796 ieee80211_recalc_ps_vif(sdata);
2797 ieee80211_check_fast_rx_iface(sdata);
2798
2799 return 0;
2800 }
2801
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)2802 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2803 struct net_device *dev,
2804 s32 rssi_thold, u32 rssi_hyst)
2805 {
2806 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2807 struct ieee80211_vif *vif = &sdata->vif;
2808 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2809
2810 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2811 rssi_hyst == bss_conf->cqm_rssi_hyst)
2812 return 0;
2813
2814 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2815 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2816 return -EOPNOTSUPP;
2817
2818 bss_conf->cqm_rssi_thold = rssi_thold;
2819 bss_conf->cqm_rssi_hyst = rssi_hyst;
2820 bss_conf->cqm_rssi_low = 0;
2821 bss_conf->cqm_rssi_high = 0;
2822 sdata->u.mgd.last_cqm_event_signal = 0;
2823
2824 /* tell the driver upon association, unless already associated */
2825 if (sdata->u.mgd.associated &&
2826 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2827 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2828
2829 return 0;
2830 }
2831
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)2832 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2833 struct net_device *dev,
2834 s32 rssi_low, s32 rssi_high)
2835 {
2836 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2837 struct ieee80211_vif *vif = &sdata->vif;
2838 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2839
2840 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2841 return -EOPNOTSUPP;
2842
2843 bss_conf->cqm_rssi_low = rssi_low;
2844 bss_conf->cqm_rssi_high = rssi_high;
2845 bss_conf->cqm_rssi_thold = 0;
2846 bss_conf->cqm_rssi_hyst = 0;
2847 sdata->u.mgd.last_cqm_event_signal = 0;
2848
2849 /* tell the driver upon association, unless already associated */
2850 if (sdata->u.mgd.associated &&
2851 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2852 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2853
2854 return 0;
2855 }
2856
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,const u8 * addr,const struct cfg80211_bitrate_mask * mask)2857 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2858 struct net_device *dev,
2859 const u8 *addr,
2860 const struct cfg80211_bitrate_mask *mask)
2861 {
2862 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2863 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2864 int i, ret;
2865
2866 if (!ieee80211_sdata_running(sdata))
2867 return -ENETDOWN;
2868
2869 /*
2870 * If active validate the setting and reject it if it doesn't leave
2871 * at least one basic rate usable, since we really have to be able
2872 * to send something, and if we're an AP we have to be able to do
2873 * so at a basic rate so that all clients can receive it.
2874 */
2875 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2876 sdata->vif.bss_conf.chandef.chan) {
2877 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2878 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2879
2880 if (!(mask->control[band].legacy & basic_rates))
2881 return -EINVAL;
2882 }
2883
2884 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2885 ret = drv_set_bitrate_mask(local, sdata, mask);
2886 if (ret)
2887 return ret;
2888 }
2889
2890 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2891 struct ieee80211_supported_band *sband = wiphy->bands[i];
2892 int j;
2893
2894 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2895 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2896 sizeof(mask->control[i].ht_mcs));
2897 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2898 mask->control[i].vht_mcs,
2899 sizeof(mask->control[i].vht_mcs));
2900
2901 sdata->rc_has_mcs_mask[i] = false;
2902 sdata->rc_has_vht_mcs_mask[i] = false;
2903 if (!sband)
2904 continue;
2905
2906 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2907 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2908 sdata->rc_has_mcs_mask[i] = true;
2909 break;
2910 }
2911 }
2912
2913 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2914 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2915 sdata->rc_has_vht_mcs_mask[i] = true;
2916 break;
2917 }
2918 }
2919 }
2920
2921 return 0;
2922 }
2923
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)2924 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2925 struct net_device *dev,
2926 struct cfg80211_chan_def *chandef,
2927 u32 cac_time_ms)
2928 {
2929 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2930 struct ieee80211_local *local = sdata->local;
2931 int err;
2932
2933 mutex_lock(&local->mtx);
2934 if (!list_empty(&local->roc_list) || local->scanning) {
2935 err = -EBUSY;
2936 goto out_unlock;
2937 }
2938
2939 /* whatever, but channel contexts should not complain about that one */
2940 sdata->smps_mode = IEEE80211_SMPS_OFF;
2941 sdata->needed_rx_chains = local->rx_chains;
2942
2943 err = ieee80211_vif_use_channel(sdata, chandef,
2944 IEEE80211_CHANCTX_SHARED);
2945 if (err)
2946 goto out_unlock;
2947
2948 ieee80211_queue_delayed_work(&sdata->local->hw,
2949 &sdata->dfs_cac_timer_work,
2950 msecs_to_jiffies(cac_time_ms));
2951
2952 out_unlock:
2953 mutex_unlock(&local->mtx);
2954 return err;
2955 }
2956
2957 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)2958 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2959 {
2960 struct cfg80211_beacon_data *new_beacon;
2961 u8 *pos;
2962 int len;
2963
2964 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2965 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2966 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
2967
2968 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2969 if (!new_beacon)
2970 return NULL;
2971
2972 pos = (u8 *)(new_beacon + 1);
2973 if (beacon->head_len) {
2974 new_beacon->head_len = beacon->head_len;
2975 new_beacon->head = pos;
2976 memcpy(pos, beacon->head, beacon->head_len);
2977 pos += beacon->head_len;
2978 }
2979 if (beacon->tail_len) {
2980 new_beacon->tail_len = beacon->tail_len;
2981 new_beacon->tail = pos;
2982 memcpy(pos, beacon->tail, beacon->tail_len);
2983 pos += beacon->tail_len;
2984 }
2985 if (beacon->beacon_ies_len) {
2986 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2987 new_beacon->beacon_ies = pos;
2988 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2989 pos += beacon->beacon_ies_len;
2990 }
2991 if (beacon->proberesp_ies_len) {
2992 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2993 new_beacon->proberesp_ies = pos;
2994 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2995 pos += beacon->proberesp_ies_len;
2996 }
2997 if (beacon->assocresp_ies_len) {
2998 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2999 new_beacon->assocresp_ies = pos;
3000 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3001 pos += beacon->assocresp_ies_len;
3002 }
3003 if (beacon->probe_resp_len) {
3004 new_beacon->probe_resp_len = beacon->probe_resp_len;
3005 new_beacon->probe_resp = pos;
3006 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3007 pos += beacon->probe_resp_len;
3008 }
3009
3010 /* might copy -1, meaning no changes requested */
3011 new_beacon->ftm_responder = beacon->ftm_responder;
3012 if (beacon->lci) {
3013 new_beacon->lci_len = beacon->lci_len;
3014 new_beacon->lci = pos;
3015 memcpy(pos, beacon->lci, beacon->lci_len);
3016 pos += beacon->lci_len;
3017 }
3018 if (beacon->civicloc) {
3019 new_beacon->civicloc_len = beacon->civicloc_len;
3020 new_beacon->civicloc = pos;
3021 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3022 pos += beacon->civicloc_len;
3023 }
3024
3025 return new_beacon;
3026 }
3027
ieee80211_csa_finish(struct ieee80211_vif * vif)3028 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3029 {
3030 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3031
3032 ieee80211_queue_work(&sdata->local->hw,
3033 &sdata->csa_finalize_work);
3034 }
3035 EXPORT_SYMBOL(ieee80211_csa_finish);
3036
ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u32 * changed)3037 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3038 u32 *changed)
3039 {
3040 int err;
3041
3042 switch (sdata->vif.type) {
3043 case NL80211_IFTYPE_AP:
3044 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3045 NULL);
3046 kfree(sdata->u.ap.next_beacon);
3047 sdata->u.ap.next_beacon = NULL;
3048
3049 if (err < 0)
3050 return err;
3051 *changed |= err;
3052 break;
3053 case NL80211_IFTYPE_ADHOC:
3054 err = ieee80211_ibss_finish_csa(sdata);
3055 if (err < 0)
3056 return err;
3057 *changed |= err;
3058 break;
3059 #ifdef CONFIG_MAC80211_MESH
3060 case NL80211_IFTYPE_MESH_POINT:
3061 err = ieee80211_mesh_finish_csa(sdata);
3062 if (err < 0)
3063 return err;
3064 *changed |= err;
3065 break;
3066 #endif
3067 default:
3068 WARN_ON(1);
3069 return -EINVAL;
3070 }
3071
3072 return 0;
3073 }
3074
__ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3075 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3076 {
3077 struct ieee80211_local *local = sdata->local;
3078 u32 changed = 0;
3079 int err;
3080
3081 sdata_assert_lock(sdata);
3082 lockdep_assert_held(&local->mtx);
3083 lockdep_assert_held(&local->chanctx_mtx);
3084
3085 /*
3086 * using reservation isn't immediate as it may be deferred until later
3087 * with multi-vif. once reservation is complete it will re-schedule the
3088 * work with no reserved_chanctx so verify chandef to check if it
3089 * completed successfully
3090 */
3091
3092 if (sdata->reserved_chanctx) {
3093 /*
3094 * with multi-vif csa driver may call ieee80211_csa_finish()
3095 * many times while waiting for other interfaces to use their
3096 * reservations
3097 */
3098 if (sdata->reserved_ready)
3099 return 0;
3100
3101 return ieee80211_vif_use_reserved_context(sdata);
3102 }
3103
3104 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3105 &sdata->csa_chandef))
3106 return -EINVAL;
3107
3108 sdata->vif.csa_active = false;
3109
3110 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3111 if (err)
3112 return err;
3113
3114 ieee80211_bss_info_change_notify(sdata, changed);
3115
3116 if (sdata->csa_block_tx) {
3117 ieee80211_wake_vif_queues(local, sdata,
3118 IEEE80211_QUEUE_STOP_REASON_CSA);
3119 sdata->csa_block_tx = false;
3120 }
3121
3122 err = drv_post_channel_switch(sdata);
3123 if (err)
3124 return err;
3125
3126 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3127
3128 return 0;
3129 }
3130
ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3131 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3132 {
3133 if (__ieee80211_csa_finalize(sdata)) {
3134 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3135 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3136 GFP_KERNEL);
3137 }
3138 }
3139
ieee80211_csa_finalize_work(struct work_struct * work)3140 void ieee80211_csa_finalize_work(struct work_struct *work)
3141 {
3142 struct ieee80211_sub_if_data *sdata =
3143 container_of(work, struct ieee80211_sub_if_data,
3144 csa_finalize_work);
3145 struct ieee80211_local *local = sdata->local;
3146
3147 sdata_lock(sdata);
3148 mutex_lock(&local->mtx);
3149 mutex_lock(&local->chanctx_mtx);
3150
3151 /* AP might have been stopped while waiting for the lock. */
3152 if (!sdata->vif.csa_active)
3153 goto unlock;
3154
3155 if (!ieee80211_sdata_running(sdata))
3156 goto unlock;
3157
3158 ieee80211_csa_finalize(sdata);
3159
3160 unlock:
3161 mutex_unlock(&local->chanctx_mtx);
3162 mutex_unlock(&local->mtx);
3163 sdata_unlock(sdata);
3164 }
3165
ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u32 * changed)3166 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3167 struct cfg80211_csa_settings *params,
3168 u32 *changed)
3169 {
3170 struct ieee80211_csa_settings csa = {};
3171 int err;
3172
3173 switch (sdata->vif.type) {
3174 case NL80211_IFTYPE_AP:
3175 sdata->u.ap.next_beacon =
3176 cfg80211_beacon_dup(¶ms->beacon_after);
3177 if (!sdata->u.ap.next_beacon)
3178 return -ENOMEM;
3179
3180 /*
3181 * With a count of 0, we don't have to wait for any
3182 * TBTT before switching, so complete the CSA
3183 * immediately. In theory, with a count == 1 we
3184 * should delay the switch until just before the next
3185 * TBTT, but that would complicate things so we switch
3186 * immediately too. If we would delay the switch
3187 * until the next TBTT, we would have to set the probe
3188 * response here.
3189 *
3190 * TODO: A channel switch with count <= 1 without
3191 * sending a CSA action frame is kind of useless,
3192 * because the clients won't know we're changing
3193 * channels. The action frame must be implemented
3194 * either here or in the userspace.
3195 */
3196 if (params->count <= 1)
3197 break;
3198
3199 if ((params->n_counter_offsets_beacon >
3200 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3201 (params->n_counter_offsets_presp >
3202 IEEE80211_MAX_CSA_COUNTERS_NUM))
3203 return -EINVAL;
3204
3205 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3206 csa.counter_offsets_presp = params->counter_offsets_presp;
3207 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3208 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3209 csa.count = params->count;
3210
3211 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa);
3212 if (err < 0) {
3213 kfree(sdata->u.ap.next_beacon);
3214 return err;
3215 }
3216 *changed |= err;
3217
3218 break;
3219 case NL80211_IFTYPE_ADHOC:
3220 if (!sdata->vif.bss_conf.ibss_joined)
3221 return -EINVAL;
3222
3223 if (params->chandef.width != sdata->u.ibss.chandef.width)
3224 return -EINVAL;
3225
3226 switch (params->chandef.width) {
3227 case NL80211_CHAN_WIDTH_40:
3228 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3229 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3230 return -EINVAL;
3231 case NL80211_CHAN_WIDTH_5:
3232 case NL80211_CHAN_WIDTH_10:
3233 case NL80211_CHAN_WIDTH_20_NOHT:
3234 case NL80211_CHAN_WIDTH_20:
3235 break;
3236 default:
3237 return -EINVAL;
3238 }
3239
3240 /* changes into another band are not supported */
3241 if (sdata->u.ibss.chandef.chan->band !=
3242 params->chandef.chan->band)
3243 return -EINVAL;
3244
3245 /* see comments in the NL80211_IFTYPE_AP block */
3246 if (params->count > 1) {
3247 err = ieee80211_ibss_csa_beacon(sdata, params);
3248 if (err < 0)
3249 return err;
3250 *changed |= err;
3251 }
3252
3253 ieee80211_send_action_csa(sdata, params);
3254
3255 break;
3256 #ifdef CONFIG_MAC80211_MESH
3257 case NL80211_IFTYPE_MESH_POINT: {
3258 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3259
3260 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3261 return -EINVAL;
3262
3263 /* changes into another band are not supported */
3264 if (sdata->vif.bss_conf.chandef.chan->band !=
3265 params->chandef.chan->band)
3266 return -EINVAL;
3267
3268 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3269 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3270 if (!ifmsh->pre_value)
3271 ifmsh->pre_value = 1;
3272 else
3273 ifmsh->pre_value++;
3274 }
3275
3276 /* see comments in the NL80211_IFTYPE_AP block */
3277 if (params->count > 1) {
3278 err = ieee80211_mesh_csa_beacon(sdata, params);
3279 if (err < 0) {
3280 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3281 return err;
3282 }
3283 *changed |= err;
3284 }
3285
3286 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3287 ieee80211_send_action_csa(sdata, params);
3288
3289 break;
3290 }
3291 #endif
3292 default:
3293 return -EOPNOTSUPP;
3294 }
3295
3296 return 0;
3297 }
3298
3299 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3300 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3301 struct cfg80211_csa_settings *params)
3302 {
3303 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3304 struct ieee80211_local *local = sdata->local;
3305 struct ieee80211_channel_switch ch_switch;
3306 struct ieee80211_chanctx_conf *conf;
3307 struct ieee80211_chanctx *chanctx;
3308 u32 changed = 0;
3309 int err;
3310
3311 sdata_assert_lock(sdata);
3312 lockdep_assert_held(&local->mtx);
3313
3314 if (!list_empty(&local->roc_list) || local->scanning)
3315 return -EBUSY;
3316
3317 if (sdata->wdev.cac_started)
3318 return -EBUSY;
3319
3320 if (cfg80211_chandef_identical(¶ms->chandef,
3321 &sdata->vif.bss_conf.chandef))
3322 return -EINVAL;
3323
3324 /* don't allow another channel switch if one is already active. */
3325 if (sdata->vif.csa_active)
3326 return -EBUSY;
3327
3328 mutex_lock(&local->chanctx_mtx);
3329 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3330 lockdep_is_held(&local->chanctx_mtx));
3331 if (!conf) {
3332 err = -EBUSY;
3333 goto out;
3334 }
3335
3336 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3337
3338 ch_switch.timestamp = 0;
3339 ch_switch.device_timestamp = 0;
3340 ch_switch.block_tx = params->block_tx;
3341 ch_switch.chandef = params->chandef;
3342 ch_switch.count = params->count;
3343
3344 err = drv_pre_channel_switch(sdata, &ch_switch);
3345 if (err)
3346 goto out;
3347
3348 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef,
3349 chanctx->mode,
3350 params->radar_required);
3351 if (err)
3352 goto out;
3353
3354 /* if reservation is invalid then this will fail */
3355 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3356 if (err) {
3357 ieee80211_vif_unreserve_chanctx(sdata);
3358 goto out;
3359 }
3360
3361 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3362 if (err) {
3363 ieee80211_vif_unreserve_chanctx(sdata);
3364 goto out;
3365 }
3366
3367 sdata->csa_chandef = params->chandef;
3368 sdata->csa_block_tx = params->block_tx;
3369 sdata->vif.csa_active = true;
3370
3371 if (sdata->csa_block_tx)
3372 ieee80211_stop_vif_queues(local, sdata,
3373 IEEE80211_QUEUE_STOP_REASON_CSA);
3374
3375 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3376 params->count);
3377
3378 if (changed) {
3379 ieee80211_bss_info_change_notify(sdata, changed);
3380 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3381 } else {
3382 /* if the beacon didn't change, we can finalize immediately */
3383 ieee80211_csa_finalize(sdata);
3384 }
3385
3386 out:
3387 mutex_unlock(&local->chanctx_mtx);
3388 return err;
3389 }
3390
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3391 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3392 struct cfg80211_csa_settings *params)
3393 {
3394 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3395 struct ieee80211_local *local = sdata->local;
3396 int err;
3397
3398 mutex_lock(&local->mtx);
3399 err = __ieee80211_channel_switch(wiphy, dev, params);
3400 mutex_unlock(&local->mtx);
3401
3402 return err;
3403 }
3404
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)3405 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3406 {
3407 lockdep_assert_held(&local->mtx);
3408
3409 local->roc_cookie_counter++;
3410
3411 /* wow, you wrapped 64 bits ... more likely a bug */
3412 if (WARN_ON(local->roc_cookie_counter == 0))
3413 local->roc_cookie_counter++;
3414
3415 return local->roc_cookie_counter;
3416 }
3417
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)3418 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3419 u64 *cookie, gfp_t gfp)
3420 {
3421 unsigned long spin_flags;
3422 struct sk_buff *ack_skb;
3423 int id;
3424
3425 ack_skb = skb_copy(skb, gfp);
3426 if (!ack_skb)
3427 return -ENOMEM;
3428
3429 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3430 id = idr_alloc(&local->ack_status_frames, ack_skb,
3431 1, 0x10000, GFP_ATOMIC);
3432 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3433
3434 if (id < 0) {
3435 kfree_skb(ack_skb);
3436 return -ENOMEM;
3437 }
3438
3439 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3440
3441 *cookie = ieee80211_mgmt_tx_cookie(local);
3442 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3443
3444 return 0;
3445 }
3446
ieee80211_mgmt_frame_register(struct wiphy * wiphy,struct wireless_dev * wdev,u16 frame_type,bool reg)3447 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3448 struct wireless_dev *wdev,
3449 u16 frame_type, bool reg)
3450 {
3451 struct ieee80211_local *local = wiphy_priv(wiphy);
3452 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3453
3454 switch (frame_type) {
3455 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3456 if (reg) {
3457 local->probe_req_reg++;
3458 sdata->vif.probe_req_reg++;
3459 } else {
3460 if (local->probe_req_reg)
3461 local->probe_req_reg--;
3462
3463 if (sdata->vif.probe_req_reg)
3464 sdata->vif.probe_req_reg--;
3465 }
3466
3467 if (!local->open_count)
3468 break;
3469
3470 if (sdata->vif.probe_req_reg == 1)
3471 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3472 FIF_PROBE_REQ);
3473 else if (sdata->vif.probe_req_reg == 0)
3474 drv_config_iface_filter(local, sdata, 0,
3475 FIF_PROBE_REQ);
3476
3477 ieee80211_configure_filter(local);
3478 break;
3479 default:
3480 break;
3481 }
3482 }
3483
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)3484 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3485 {
3486 struct ieee80211_local *local = wiphy_priv(wiphy);
3487
3488 if (local->started)
3489 return -EOPNOTSUPP;
3490
3491 return drv_set_antenna(local, tx_ant, rx_ant);
3492 }
3493
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)3494 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3495 {
3496 struct ieee80211_local *local = wiphy_priv(wiphy);
3497
3498 return drv_get_antenna(local, tx_ant, rx_ant);
3499 }
3500
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)3501 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3502 struct net_device *dev,
3503 struct cfg80211_gtk_rekey_data *data)
3504 {
3505 struct ieee80211_local *local = wiphy_priv(wiphy);
3506 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3507
3508 if (!local->ops->set_rekey_data)
3509 return -EOPNOTSUPP;
3510
3511 drv_set_rekey_data(local, sdata, data);
3512
3513 return 0;
3514 }
3515
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)3516 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3517 const u8 *peer, u64 *cookie)
3518 {
3519 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3520 struct ieee80211_local *local = sdata->local;
3521 struct ieee80211_qos_hdr *nullfunc;
3522 struct sk_buff *skb;
3523 int size = sizeof(*nullfunc);
3524 __le16 fc;
3525 bool qos;
3526 struct ieee80211_tx_info *info;
3527 struct sta_info *sta;
3528 struct ieee80211_chanctx_conf *chanctx_conf;
3529 enum nl80211_band band;
3530 int ret;
3531
3532 /* the lock is needed to assign the cookie later */
3533 mutex_lock(&local->mtx);
3534
3535 rcu_read_lock();
3536 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3537 if (WARN_ON(!chanctx_conf)) {
3538 ret = -EINVAL;
3539 goto unlock;
3540 }
3541 band = chanctx_conf->def.chan->band;
3542 sta = sta_info_get_bss(sdata, peer);
3543 if (sta) {
3544 qos = sta->sta.wme;
3545 } else {
3546 ret = -ENOLINK;
3547 goto unlock;
3548 }
3549
3550 if (qos) {
3551 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3552 IEEE80211_STYPE_QOS_NULLFUNC |
3553 IEEE80211_FCTL_FROMDS);
3554 } else {
3555 size -= 2;
3556 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3557 IEEE80211_STYPE_NULLFUNC |
3558 IEEE80211_FCTL_FROMDS);
3559 }
3560
3561 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3562 if (!skb) {
3563 ret = -ENOMEM;
3564 goto unlock;
3565 }
3566
3567 skb->dev = dev;
3568
3569 skb_reserve(skb, local->hw.extra_tx_headroom);
3570
3571 nullfunc = skb_put(skb, size);
3572 nullfunc->frame_control = fc;
3573 nullfunc->duration_id = 0;
3574 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3575 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3576 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3577 nullfunc->seq_ctrl = 0;
3578
3579 info = IEEE80211_SKB_CB(skb);
3580
3581 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3582 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3583 info->band = band;
3584
3585 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3586 skb->priority = 7;
3587 if (qos)
3588 nullfunc->qos_ctrl = cpu_to_le16(7);
3589
3590 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3591 if (ret) {
3592 kfree_skb(skb);
3593 goto unlock;
3594 }
3595
3596 local_bh_disable();
3597 ieee80211_xmit(sdata, sta, skb, 0);
3598 local_bh_enable();
3599
3600 ret = 0;
3601 unlock:
3602 rcu_read_unlock();
3603 mutex_unlock(&local->mtx);
3604
3605 return ret;
3606 }
3607
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_chan_def * chandef)3608 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3609 struct wireless_dev *wdev,
3610 struct cfg80211_chan_def *chandef)
3611 {
3612 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3613 struct ieee80211_local *local = wiphy_priv(wiphy);
3614 struct ieee80211_chanctx_conf *chanctx_conf;
3615 int ret = -ENODATA;
3616
3617 rcu_read_lock();
3618 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3619 if (chanctx_conf) {
3620 *chandef = sdata->vif.bss_conf.chandef;
3621 ret = 0;
3622 } else if (local->open_count > 0 &&
3623 local->open_count == local->monitors &&
3624 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3625 if (local->use_chanctx)
3626 *chandef = local->monitor_chandef;
3627 else
3628 *chandef = local->_oper_chandef;
3629 ret = 0;
3630 }
3631 rcu_read_unlock();
3632
3633 return ret;
3634 }
3635
3636 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)3637 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3638 {
3639 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3640 }
3641 #endif
3642
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)3643 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3644 struct net_device *dev,
3645 struct cfg80211_qos_map *qos_map)
3646 {
3647 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3648 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3649
3650 if (qos_map) {
3651 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3652 if (!new_qos_map)
3653 return -ENOMEM;
3654 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3655 } else {
3656 /* A NULL qos_map was passed to disable QoS mapping */
3657 new_qos_map = NULL;
3658 }
3659
3660 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3661 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3662 if (old_qos_map)
3663 kfree_rcu(old_qos_map, rcu_head);
3664
3665 return 0;
3666 }
3667
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef)3668 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3669 struct net_device *dev,
3670 struct cfg80211_chan_def *chandef)
3671 {
3672 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3673 int ret;
3674 u32 changed = 0;
3675
3676 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3677 if (ret == 0)
3678 ieee80211_bss_info_change_notify(sdata, changed);
3679
3680 return ret;
3681 }
3682
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)3683 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3684 u8 tsid, const u8 *peer, u8 up,
3685 u16 admitted_time)
3686 {
3687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3688 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3689 int ac = ieee802_1d_to_ac[up];
3690
3691 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3692 return -EOPNOTSUPP;
3693
3694 if (!(sdata->wmm_acm & BIT(up)))
3695 return -EINVAL;
3696
3697 if (ifmgd->tx_tspec[ac].admitted_time)
3698 return -EBUSY;
3699
3700 if (admitted_time) {
3701 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3702 ifmgd->tx_tspec[ac].tsid = tsid;
3703 ifmgd->tx_tspec[ac].up = up;
3704 }
3705
3706 return 0;
3707 }
3708
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)3709 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3710 u8 tsid, const u8 *peer)
3711 {
3712 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3713 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3714 struct ieee80211_local *local = wiphy_priv(wiphy);
3715 int ac;
3716
3717 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3718 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3719
3720 /* skip unused entries */
3721 if (!tx_tspec->admitted_time)
3722 continue;
3723
3724 if (tx_tspec->tsid != tsid)
3725 continue;
3726
3727 /* due to this new packets will be reassigned to non-ACM ACs */
3728 tx_tspec->up = -1;
3729
3730 /* Make sure that all packets have been sent to avoid to
3731 * restore the QoS params on packets that are still on the
3732 * queues.
3733 */
3734 synchronize_net();
3735 ieee80211_flush_queues(local, sdata, false);
3736
3737 /* restore the normal QoS parameters
3738 * (unconditionally to avoid races)
3739 */
3740 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3741 tx_tspec->downgraded = false;
3742 ieee80211_sta_handle_tspec_ac_params(sdata);
3743
3744 /* finally clear all the data */
3745 memset(tx_tspec, 0, sizeof(*tx_tspec));
3746
3747 return 0;
3748 }
3749
3750 return -ENOENT;
3751 }
3752
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)3753 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3754 u8 inst_id,
3755 enum nl80211_nan_func_term_reason reason,
3756 gfp_t gfp)
3757 {
3758 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3759 struct cfg80211_nan_func *func;
3760 u64 cookie;
3761
3762 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3763 return;
3764
3765 spin_lock_bh(&sdata->u.nan.func_lock);
3766
3767 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3768 if (WARN_ON(!func)) {
3769 spin_unlock_bh(&sdata->u.nan.func_lock);
3770 return;
3771 }
3772
3773 cookie = func->cookie;
3774 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3775
3776 spin_unlock_bh(&sdata->u.nan.func_lock);
3777
3778 cfg80211_free_nan_func(func);
3779
3780 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3781 reason, cookie, gfp);
3782 }
3783 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3784
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)3785 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3786 struct cfg80211_nan_match_params *match,
3787 gfp_t gfp)
3788 {
3789 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3790 struct cfg80211_nan_func *func;
3791
3792 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3793 return;
3794
3795 spin_lock_bh(&sdata->u.nan.func_lock);
3796
3797 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3798 if (WARN_ON(!func)) {
3799 spin_unlock_bh(&sdata->u.nan.func_lock);
3800 return;
3801 }
3802 match->cookie = func->cookie;
3803
3804 spin_unlock_bh(&sdata->u.nan.func_lock);
3805
3806 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3807 }
3808 EXPORT_SYMBOL(ieee80211_nan_func_match);
3809
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)3810 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3811 struct net_device *dev,
3812 const bool enabled)
3813 {
3814 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3815
3816 sdata->u.ap.multicast_to_unicast = enabled;
3817
3818 return 0;
3819 }
3820
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)3821 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3822 struct txq_info *txqi)
3823 {
3824 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3825 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3826 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3827 }
3828
3829 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3830 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3831 txqstats->backlog_packets = txqi->tin.backlog_packets;
3832 }
3833
3834 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3835 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3836 txqstats->flows = txqi->tin.flows;
3837 }
3838
3839 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3840 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3841 txqstats->drops = txqi->cstats.drop_count;
3842 }
3843
3844 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3845 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3846 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3847 }
3848
3849 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3850 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3851 txqstats->overlimit = txqi->tin.overlimit;
3852 }
3853
3854 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3855 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3856 txqstats->collisions = txqi->tin.collisions;
3857 }
3858
3859 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3860 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3861 txqstats->tx_bytes = txqi->tin.tx_bytes;
3862 }
3863
3864 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3865 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3866 txqstats->tx_packets = txqi->tin.tx_packets;
3867 }
3868 }
3869
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)3870 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3871 struct wireless_dev *wdev,
3872 struct cfg80211_txq_stats *txqstats)
3873 {
3874 struct ieee80211_local *local = wiphy_priv(wiphy);
3875 struct ieee80211_sub_if_data *sdata;
3876 int ret = 0;
3877
3878 if (!local->ops->wake_tx_queue)
3879 return 1;
3880
3881 spin_lock_bh(&local->fq.lock);
3882 rcu_read_lock();
3883
3884 if (wdev) {
3885 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3886 if (!sdata->vif.txq) {
3887 ret = 1;
3888 goto out;
3889 }
3890 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3891 } else {
3892 /* phy stats */
3893 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3894 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3895 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3896 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3897 BIT(NL80211_TXQ_STATS_COLLISIONS) |
3898 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3899 txqstats->backlog_packets = local->fq.backlog;
3900 txqstats->backlog_bytes = local->fq.memory_usage;
3901 txqstats->overlimit = local->fq.overlimit;
3902 txqstats->overmemory = local->fq.overmemory;
3903 txqstats->collisions = local->fq.collisions;
3904 txqstats->max_flows = local->fq.flows_cnt;
3905 }
3906
3907 out:
3908 rcu_read_unlock();
3909 spin_unlock_bh(&local->fq.lock);
3910
3911 return ret;
3912 }
3913
3914 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)3915 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3916 struct net_device *dev,
3917 struct cfg80211_ftm_responder_stats *ftm_stats)
3918 {
3919 struct ieee80211_local *local = wiphy_priv(wiphy);
3920 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3921
3922 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
3923 }
3924
3925 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)3926 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3927 struct cfg80211_pmsr_request *request)
3928 {
3929 struct ieee80211_local *local = wiphy_priv(wiphy);
3930 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3931
3932 return drv_start_pmsr(local, sdata, request);
3933 }
3934
3935 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)3936 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3937 struct cfg80211_pmsr_request *request)
3938 {
3939 struct ieee80211_local *local = wiphy_priv(wiphy);
3940 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3941
3942 return drv_abort_pmsr(local, sdata, request);
3943 }
3944
3945 const struct cfg80211_ops mac80211_config_ops = {
3946 .add_virtual_intf = ieee80211_add_iface,
3947 .del_virtual_intf = ieee80211_del_iface,
3948 .change_virtual_intf = ieee80211_change_iface,
3949 .start_p2p_device = ieee80211_start_p2p_device,
3950 .stop_p2p_device = ieee80211_stop_p2p_device,
3951 .add_key = ieee80211_add_key,
3952 .del_key = ieee80211_del_key,
3953 .get_key = ieee80211_get_key,
3954 .set_default_key = ieee80211_config_default_key,
3955 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3956 .start_ap = ieee80211_start_ap,
3957 .change_beacon = ieee80211_change_beacon,
3958 .stop_ap = ieee80211_stop_ap,
3959 .add_station = ieee80211_add_station,
3960 .del_station = ieee80211_del_station,
3961 .change_station = ieee80211_change_station,
3962 .get_station = ieee80211_get_station,
3963 .dump_station = ieee80211_dump_station,
3964 .dump_survey = ieee80211_dump_survey,
3965 #ifdef CONFIG_MAC80211_MESH
3966 .add_mpath = ieee80211_add_mpath,
3967 .del_mpath = ieee80211_del_mpath,
3968 .change_mpath = ieee80211_change_mpath,
3969 .get_mpath = ieee80211_get_mpath,
3970 .dump_mpath = ieee80211_dump_mpath,
3971 .get_mpp = ieee80211_get_mpp,
3972 .dump_mpp = ieee80211_dump_mpp,
3973 .update_mesh_config = ieee80211_update_mesh_config,
3974 .get_mesh_config = ieee80211_get_mesh_config,
3975 .join_mesh = ieee80211_join_mesh,
3976 .leave_mesh = ieee80211_leave_mesh,
3977 #endif
3978 .join_ocb = ieee80211_join_ocb,
3979 .leave_ocb = ieee80211_leave_ocb,
3980 .change_bss = ieee80211_change_bss,
3981 .set_txq_params = ieee80211_set_txq_params,
3982 .set_monitor_channel = ieee80211_set_monitor_channel,
3983 .suspend = ieee80211_suspend,
3984 .resume = ieee80211_resume,
3985 .scan = ieee80211_scan,
3986 .abort_scan = ieee80211_abort_scan,
3987 .sched_scan_start = ieee80211_sched_scan_start,
3988 .sched_scan_stop = ieee80211_sched_scan_stop,
3989 .auth = ieee80211_auth,
3990 .assoc = ieee80211_assoc,
3991 .deauth = ieee80211_deauth,
3992 .disassoc = ieee80211_disassoc,
3993 .join_ibss = ieee80211_join_ibss,
3994 .leave_ibss = ieee80211_leave_ibss,
3995 .set_mcast_rate = ieee80211_set_mcast_rate,
3996 .set_wiphy_params = ieee80211_set_wiphy_params,
3997 .set_tx_power = ieee80211_set_tx_power,
3998 .get_tx_power = ieee80211_get_tx_power,
3999 .set_wds_peer = ieee80211_set_wds_peer,
4000 .rfkill_poll = ieee80211_rfkill_poll,
4001 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4002 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4003 .set_power_mgmt = ieee80211_set_power_mgmt,
4004 .set_bitrate_mask = ieee80211_set_bitrate_mask,
4005 .remain_on_channel = ieee80211_remain_on_channel,
4006 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4007 .mgmt_tx = ieee80211_mgmt_tx,
4008 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4009 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4010 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4011 .mgmt_frame_register = ieee80211_mgmt_frame_register,
4012 .set_antenna = ieee80211_set_antenna,
4013 .get_antenna = ieee80211_get_antenna,
4014 .set_rekey_data = ieee80211_set_rekey_data,
4015 .tdls_oper = ieee80211_tdls_oper,
4016 .tdls_mgmt = ieee80211_tdls_mgmt,
4017 .tdls_channel_switch = ieee80211_tdls_channel_switch,
4018 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4019 .probe_client = ieee80211_probe_client,
4020 .set_noack_map = ieee80211_set_noack_map,
4021 #ifdef CONFIG_PM
4022 .set_wakeup = ieee80211_set_wakeup,
4023 #endif
4024 .get_channel = ieee80211_cfg_get_channel,
4025 .start_radar_detection = ieee80211_start_radar_detection,
4026 .channel_switch = ieee80211_channel_switch,
4027 .set_qos_map = ieee80211_set_qos_map,
4028 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4029 .add_tx_ts = ieee80211_add_tx_ts,
4030 .del_tx_ts = ieee80211_del_tx_ts,
4031 .start_nan = ieee80211_start_nan,
4032 .stop_nan = ieee80211_stop_nan,
4033 .nan_change_conf = ieee80211_nan_change_conf,
4034 .add_nan_func = ieee80211_add_nan_func,
4035 .del_nan_func = ieee80211_del_nan_func,
4036 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4037 .tx_control_port = ieee80211_tx_control_port,
4038 .get_txq_stats = ieee80211_get_txq_stats,
4039 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4040 .start_pmsr = ieee80211_start_pmsr,
4041 .abort_pmsr = ieee80211_abort_pmsr,
4042 .probe_mesh_link = ieee80211_probe_mesh_link,
4043 };
4044