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Linux 5.1.15
[linux/fpc-iii.git] / net / mac80211 / cfg.c
blob09dd1c2860fc030f584fb895ca12483a13592823
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2015 Intel Mobile Communications GmbH
6 * Copyright (C) 2015-2017 Intel Deutschland GmbH
7 * Copyright (C) 2018 Intel Corporation
8 *
9 * This file is GPLv2 as found in COPYING.
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/if_ether.h>
19 #include <net/cfg80211.h>
20 #include "ieee80211_i.h"
21 #include "driver-ops.h"
22 #include "rate.h"
23 #include "mesh.h"
24 #include "wme.h"
25
26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
27 struct vif_params *params)
28 {
29 bool mu_mimo_groups = false;
30 bool mu_mimo_follow = false;
31
32 if (params->vht_mumimo_groups) {
33 u64 membership;
34
35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
36
37 memcpy(sdata->vif.bss_conf.mu_group.membership,
38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
39 memcpy(sdata->vif.bss_conf.mu_group.position,
40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
41 WLAN_USER_POSITION_LEN);
42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
43 /* don't care about endianness - just check for 0 */
44 memcpy(&membership, params->vht_mumimo_groups,
45 WLAN_MEMBERSHIP_LEN);
46 mu_mimo_groups = membership != 0;
47 }
48
49 if (params->vht_mumimo_follow_addr) {
50 mu_mimo_follow =
51 is_valid_ether_addr(params->vht_mumimo_follow_addr);
52 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
53 params->vht_mumimo_follow_addr);
54 }
55
56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
57 }
58
59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
60 struct vif_params *params)
61 {
62 struct ieee80211_local *local = sdata->local;
63 struct ieee80211_sub_if_data *monitor_sdata;
64
65 /* check flags first */
66 if (params->flags && ieee80211_sdata_running(sdata)) {
67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
68
69 /*
70 * Prohibit MONITOR_FLAG_COOK_FRAMES and
71 * MONITOR_FLAG_ACTIVE to be changed while the
72 * interface is up.
73 * Else we would need to add a lot of cruft
74 * to update everything:
75 * cooked_mntrs, monitor and all fif_* counters
76 * reconfigure hardware
77 */
78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
79 return -EBUSY;
80 }
81
82 /* also validate MU-MIMO change */
83 monitor_sdata = rtnl_dereference(local->monitor_sdata);
84
85 if (!monitor_sdata &&
86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
87 return -EOPNOTSUPP;
88
89 /* apply all changes now - no failures allowed */
90
91 if (monitor_sdata)
92 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
93
94 if (params->flags) {
95 if (ieee80211_sdata_running(sdata)) {
96 ieee80211_adjust_monitor_flags(sdata, -1);
97 sdata->u.mntr.flags = params->flags;
98 ieee80211_adjust_monitor_flags(sdata, 1);
99
100 ieee80211_configure_filter(local);
101 } else {
102 /*
103 * Because the interface is down, ieee80211_do_stop
104 * and ieee80211_do_open take care of "everything"
105 * mentioned in the comment above.
106 */
107 sdata->u.mntr.flags = params->flags;
108 }
109 }
110
111 return 0;
112 }
113
114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
115 const char *name,
116 unsigned char name_assign_type,
117 enum nl80211_iftype type,
118 struct vif_params *params)
119 {
120 struct ieee80211_local *local = wiphy_priv(wiphy);
121 struct wireless_dev *wdev;
122 struct ieee80211_sub_if_data *sdata;
123 int err;
124
125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
126 if (err)
127 return ERR_PTR(err);
128
129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
130
131 if (type == NL80211_IFTYPE_MONITOR) {
132 err = ieee80211_set_mon_options(sdata, params);
133 if (err) {
134 ieee80211_if_remove(sdata);
135 return NULL;
136 }
137 }
138
139 return wdev;
140 }
141
142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
143 {
144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
145
146 return 0;
147 }
148
149 static int ieee80211_change_iface(struct wiphy *wiphy,
150 struct net_device *dev,
151 enum nl80211_iftype type,
152 struct vif_params *params)
153 {
154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
155 int ret;
156
157 ret = ieee80211_if_change_type(sdata, type);
158 if (ret)
159 return ret;
160
161 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
163 ieee80211_check_fast_rx_iface(sdata);
164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
165 sdata->u.mgd.use_4addr = params->use_4addr;
166 }
167
168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
169 ret = ieee80211_set_mon_options(sdata, params);
170 if (ret)
171 return ret;
172 }
173
174 return 0;
175 }
176
177 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
178 struct wireless_dev *wdev)
179 {
180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
181 int ret;
182
183 mutex_lock(&sdata->local->chanctx_mtx);
184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
185 mutex_unlock(&sdata->local->chanctx_mtx);
186 if (ret < 0)
187 return ret;
188
189 return ieee80211_do_open(wdev, true);
190 }
191
192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
193 struct wireless_dev *wdev)
194 {
195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
196 }
197
198 static int ieee80211_start_nan(struct wiphy *wiphy,
199 struct wireless_dev *wdev,
200 struct cfg80211_nan_conf *conf)
201 {
202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
203 int ret;
204
205 mutex_lock(&sdata->local->chanctx_mtx);
206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
207 mutex_unlock(&sdata->local->chanctx_mtx);
208 if (ret < 0)
209 return ret;
210
211 ret = ieee80211_do_open(wdev, true);
212 if (ret)
213 return ret;
214
215 ret = drv_start_nan(sdata->local, sdata, conf);
216 if (ret)
217 ieee80211_sdata_stop(sdata);
218
219 sdata->u.nan.conf = *conf;
220
221 return ret;
222 }
223
224 static void ieee80211_stop_nan(struct wiphy *wiphy,
225 struct wireless_dev *wdev)
226 {
227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
228
229 drv_stop_nan(sdata->local, sdata);
230 ieee80211_sdata_stop(sdata);
231 }
232
233 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
234 struct wireless_dev *wdev,
235 struct cfg80211_nan_conf *conf,
236 u32 changes)
237 {
238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
239 struct cfg80211_nan_conf new_conf;
240 int ret = 0;
241
242 if (sdata->vif.type != NL80211_IFTYPE_NAN)
243 return -EOPNOTSUPP;
244
245 if (!ieee80211_sdata_running(sdata))
246 return -ENETDOWN;
247
248 new_conf = sdata->u.nan.conf;
249
250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
251 new_conf.master_pref = conf->master_pref;
252
253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
254 new_conf.bands = conf->bands;
255
256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
257 if (!ret)
258 sdata->u.nan.conf = new_conf;
259
260 return ret;
261 }
262
263 static int ieee80211_add_nan_func(struct wiphy *wiphy,
264 struct wireless_dev *wdev,
265 struct cfg80211_nan_func *nan_func)
266 {
267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
268 int ret;
269
270 if (sdata->vif.type != NL80211_IFTYPE_NAN)
271 return -EOPNOTSUPP;
272
273 if (!ieee80211_sdata_running(sdata))
274 return -ENETDOWN;
275
276 spin_lock_bh(&sdata->u.nan.func_lock);
277
278 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
280 GFP_ATOMIC);
281 spin_unlock_bh(&sdata->u.nan.func_lock);
282
283 if (ret < 0)
284 return ret;
285
286 nan_func->instance_id = ret;
287
288 WARN_ON(nan_func->instance_id == 0);
289
290 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
291 if (ret) {
292 spin_lock_bh(&sdata->u.nan.func_lock);
293 idr_remove(&sdata->u.nan.function_inst_ids,
294 nan_func->instance_id);
295 spin_unlock_bh(&sdata->u.nan.func_lock);
296 }
297
298 return ret;
299 }
300
301 static struct cfg80211_nan_func *
302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
303 u64 cookie)
304 {
305 struct cfg80211_nan_func *func;
306 int id;
307
308 lockdep_assert_held(&sdata->u.nan.func_lock);
309
310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
311 if (func->cookie == cookie)
312 return func;
313 }
314
315 return NULL;
316 }
317
318 static void ieee80211_del_nan_func(struct wiphy *wiphy,
319 struct wireless_dev *wdev, u64 cookie)
320 {
321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
322 struct cfg80211_nan_func *func;
323 u8 instance_id = 0;
324
325 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
326 !ieee80211_sdata_running(sdata))
327 return;
328
329 spin_lock_bh(&sdata->u.nan.func_lock);
330
331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
332 if (func)
333 instance_id = func->instance_id;
334
335 spin_unlock_bh(&sdata->u.nan.func_lock);
336
337 if (instance_id)
338 drv_del_nan_func(sdata->local, sdata, instance_id);
339 }
340
341 static int ieee80211_set_noack_map(struct wiphy *wiphy,
342 struct net_device *dev,
343 u16 noack_map)
344 {
345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
346
347 sdata->noack_map = noack_map;
348
349 ieee80211_check_fast_xmit_iface(sdata);
350
351 return 0;
352 }
353
354 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
355 u8 key_idx, bool pairwise, const u8 *mac_addr,
356 struct key_params *params)
357 {
358 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
359 struct ieee80211_local *local = sdata->local;
360 struct sta_info *sta = NULL;
361 const struct ieee80211_cipher_scheme *cs = NULL;
362 struct ieee80211_key *key;
363 int err;
364
365 if (!ieee80211_sdata_running(sdata))
366 return -ENETDOWN;
367
368 /* reject WEP and TKIP keys if WEP failed to initialize */
369 switch (params->cipher) {
370 case WLAN_CIPHER_SUITE_WEP40:
371 case WLAN_CIPHER_SUITE_TKIP:
372 case WLAN_CIPHER_SUITE_WEP104:
373 if (IS_ERR(local->wep_tx_tfm))
374 return -EINVAL;
375 break;
376 case WLAN_CIPHER_SUITE_CCMP:
377 case WLAN_CIPHER_SUITE_CCMP_256:
378 case WLAN_CIPHER_SUITE_AES_CMAC:
379 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
380 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
381 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
382 case WLAN_CIPHER_SUITE_GCMP:
383 case WLAN_CIPHER_SUITE_GCMP_256:
384 break;
385 default:
386 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
387 break;
388 }
389
390 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
391 params->key, params->seq_len, params->seq,
392 cs);
393 if (IS_ERR(key))
394 return PTR_ERR(key);
395
396 if (pairwise)
397 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
398
399 mutex_lock(&local->sta_mtx);
400
401 if (mac_addr) {
402 sta = sta_info_get_bss(sdata, mac_addr);
403 /*
404 * The ASSOC test makes sure the driver is ready to
405 * receive the key. When wpa_supplicant has roamed
406 * using FT, it attempts to set the key before
407 * association has completed, this rejects that attempt
408 * so it will set the key again after association.
409 *
410 * TODO: accept the key if we have a station entry and
411 * add it to the device after the station.
412 */
413 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
414 ieee80211_key_free_unused(key);
415 err = -ENOENT;
416 goto out_unlock;
417 }
418 }
419
420 switch (sdata->vif.type) {
421 case NL80211_IFTYPE_STATION:
422 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
423 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
424 break;
425 case NL80211_IFTYPE_AP:
426 case NL80211_IFTYPE_AP_VLAN:
427 /* Keys without a station are used for TX only */
428 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
429 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
430 break;
431 case NL80211_IFTYPE_ADHOC:
432 /* no MFP (yet) */
433 break;
434 case NL80211_IFTYPE_MESH_POINT:
435 #ifdef CONFIG_MAC80211_MESH
436 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
437 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
438 break;
439 #endif
440 case NL80211_IFTYPE_WDS:
441 case NL80211_IFTYPE_MONITOR:
442 case NL80211_IFTYPE_P2P_DEVICE:
443 case NL80211_IFTYPE_NAN:
444 case NL80211_IFTYPE_UNSPECIFIED:
445 case NUM_NL80211_IFTYPES:
446 case NL80211_IFTYPE_P2P_CLIENT:
447 case NL80211_IFTYPE_P2P_GO:
448 case NL80211_IFTYPE_OCB:
449 /* shouldn't happen */
450 WARN_ON_ONCE(1);
451 break;
452 }
453
454 if (sta)
455 sta->cipher_scheme = cs;
456
457 err = ieee80211_key_link(key, sdata, sta);
458
459 out_unlock:
460 mutex_unlock(&local->sta_mtx);
461
462 return err;
463 }
464
465 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
466 u8 key_idx, bool pairwise, const u8 *mac_addr)
467 {
468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
469 struct ieee80211_local *local = sdata->local;
470 struct sta_info *sta;
471 struct ieee80211_key *key = NULL;
472 int ret;
473
474 mutex_lock(&local->sta_mtx);
475 mutex_lock(&local->key_mtx);
476
477 if (mac_addr) {
478 ret = -ENOENT;
479
480 sta = sta_info_get_bss(sdata, mac_addr);
481 if (!sta)
482 goto out_unlock;
483
484 if (pairwise)
485 key = key_mtx_dereference(local, sta->ptk[key_idx]);
486 else
487 key = key_mtx_dereference(local, sta->gtk[key_idx]);
488 } else
489 key = key_mtx_dereference(local, sdata->keys[key_idx]);
490
491 if (!key) {
492 ret = -ENOENT;
493 goto out_unlock;
494 }
495
496 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
497
498 ret = 0;
499 out_unlock:
500 mutex_unlock(&local->key_mtx);
501 mutex_unlock(&local->sta_mtx);
502
503 return ret;
504 }
505
506 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
507 u8 key_idx, bool pairwise, const u8 *mac_addr,
508 void *cookie,
509 void (*callback)(void *cookie,
510 struct key_params *params))
511 {
512 struct ieee80211_sub_if_data *sdata;
513 struct sta_info *sta = NULL;
514 u8 seq[6] = {0};
515 struct key_params params;
516 struct ieee80211_key *key = NULL;
517 u64 pn64;
518 u32 iv32;
519 u16 iv16;
520 int err = -ENOENT;
521 struct ieee80211_key_seq kseq = {};
522
523 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
524
525 rcu_read_lock();
526
527 if (mac_addr) {
528 sta = sta_info_get_bss(sdata, mac_addr);
529 if (!sta)
530 goto out;
531
532 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
533 key = rcu_dereference(sta->ptk[key_idx]);
534 else if (!pairwise &&
535 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
536 key = rcu_dereference(sta->gtk[key_idx]);
537 } else
538 key = rcu_dereference(sdata->keys[key_idx]);
539
540 if (!key)
541 goto out;
542
543 memset(&params, 0, sizeof(params));
544
545 params.cipher = key->conf.cipher;
546
547 switch (key->conf.cipher) {
548 case WLAN_CIPHER_SUITE_TKIP:
549 pn64 = atomic64_read(&key->conf.tx_pn);
550 iv32 = TKIP_PN_TO_IV32(pn64);
551 iv16 = TKIP_PN_TO_IV16(pn64);
552
553 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
554 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
555 drv_get_key_seq(sdata->local, key, &kseq);
556 iv32 = kseq.tkip.iv32;
557 iv16 = kseq.tkip.iv16;
558 }
559
560 seq[0] = iv16 & 0xff;
561 seq[1] = (iv16 >> 8) & 0xff;
562 seq[2] = iv32 & 0xff;
563 seq[3] = (iv32 >> 8) & 0xff;
564 seq[4] = (iv32 >> 16) & 0xff;
565 seq[5] = (iv32 >> 24) & 0xff;
566 params.seq = seq;
567 params.seq_len = 6;
568 break;
569 case WLAN_CIPHER_SUITE_CCMP:
570 case WLAN_CIPHER_SUITE_CCMP_256:
571 case WLAN_CIPHER_SUITE_AES_CMAC:
572 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
573 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
574 offsetof(typeof(kseq), aes_cmac));
575 /* fall through */
576 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
577 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
578 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
579 offsetof(typeof(kseq), aes_gmac));
580 /* fall through */
581 case WLAN_CIPHER_SUITE_GCMP:
582 case WLAN_CIPHER_SUITE_GCMP_256:
583 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
584 offsetof(typeof(kseq), gcmp));
585
586 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
587 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
588 drv_get_key_seq(sdata->local, key, &kseq);
589 memcpy(seq, kseq.ccmp.pn, 6);
590 } else {
591 pn64 = atomic64_read(&key->conf.tx_pn);
592 seq[0] = pn64;
593 seq[1] = pn64 >> 8;
594 seq[2] = pn64 >> 16;
595 seq[3] = pn64 >> 24;
596 seq[4] = pn64 >> 32;
597 seq[5] = pn64 >> 40;
598 }
599 params.seq = seq;
600 params.seq_len = 6;
601 break;
602 default:
603 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
604 break;
605 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
606 break;
607 drv_get_key_seq(sdata->local, key, &kseq);
608 params.seq = kseq.hw.seq;
609 params.seq_len = kseq.hw.seq_len;
610 break;
611 }
612
613 params.key = key->conf.key;
614 params.key_len = key->conf.keylen;
615
616 callback(cookie, &params);
617 err = 0;
618
619 out:
620 rcu_read_unlock();
621 return err;
622 }
623
624 static int ieee80211_config_default_key(struct wiphy *wiphy,
625 struct net_device *dev,
626 u8 key_idx, bool uni,
627 bool multi)
628 {
629 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
630
631 ieee80211_set_default_key(sdata, key_idx, uni, multi);
632
633 return 0;
634 }
635
636 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
637 struct net_device *dev,
638 u8 key_idx)
639 {
640 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
641
642 ieee80211_set_default_mgmt_key(sdata, key_idx);
643
644 return 0;
645 }
646
647 void sta_set_rate_info_tx(struct sta_info *sta,
648 const struct ieee80211_tx_rate *rate,
649 struct rate_info *rinfo)
650 {
651 rinfo->flags = 0;
652 if (rate->flags & IEEE80211_TX_RC_MCS) {
653 rinfo->flags |= RATE_INFO_FLAGS_MCS;
654 rinfo->mcs = rate->idx;
655 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
656 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
657 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
658 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
659 } else {
660 struct ieee80211_supported_band *sband;
661 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
662 u16 brate;
663
664 sband = ieee80211_get_sband(sta->sdata);
665 if (sband) {
666 brate = sband->bitrates[rate->idx].bitrate;
667 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
668 }
669 }
670 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
671 rinfo->bw = RATE_INFO_BW_40;
672 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
673 rinfo->bw = RATE_INFO_BW_80;
674 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
675 rinfo->bw = RATE_INFO_BW_160;
676 else
677 rinfo->bw = RATE_INFO_BW_20;
678 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
679 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
680 }
681
682 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
683 int idx, u8 *mac, struct station_info *sinfo)
684 {
685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
686 struct ieee80211_local *local = sdata->local;
687 struct sta_info *sta;
688 int ret = -ENOENT;
689
690 mutex_lock(&local->sta_mtx);
691
692 sta = sta_info_get_by_idx(sdata, idx);
693 if (sta) {
694 ret = 0;
695 memcpy(mac, sta->sta.addr, ETH_ALEN);
696 sta_set_sinfo(sta, sinfo, true);
697 }
698
699 mutex_unlock(&local->sta_mtx);
700
701 return ret;
702 }
703
704 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
705 int idx, struct survey_info *survey)
706 {
707 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
708
709 return drv_get_survey(local, idx, survey);
710 }
711
712 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
713 const u8 *mac, struct station_info *sinfo)
714 {
715 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
716 struct ieee80211_local *local = sdata->local;
717 struct sta_info *sta;
718 int ret = -ENOENT;
719
720 mutex_lock(&local->sta_mtx);
721
722 sta = sta_info_get_bss(sdata, mac);
723 if (sta) {
724 ret = 0;
725 sta_set_sinfo(sta, sinfo, true);
726 }
727
728 mutex_unlock(&local->sta_mtx);
729
730 return ret;
731 }
732
733 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
734 struct cfg80211_chan_def *chandef)
735 {
736 struct ieee80211_local *local = wiphy_priv(wiphy);
737 struct ieee80211_sub_if_data *sdata;
738 int ret = 0;
739
740 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
741 return 0;
742
743 mutex_lock(&local->mtx);
744 if (local->use_chanctx) {
745 sdata = rtnl_dereference(local->monitor_sdata);
746 if (sdata) {
747 ieee80211_vif_release_channel(sdata);
748 ret = ieee80211_vif_use_channel(sdata, chandef,
749 IEEE80211_CHANCTX_EXCLUSIVE);
750 }
751 } else if (local->open_count == local->monitors) {
752 local->_oper_chandef = *chandef;
753 ieee80211_hw_config(local, 0);
754 }
755
756 if (ret == 0)
757 local->monitor_chandef = *chandef;
758 mutex_unlock(&local->mtx);
759
760 return ret;
761 }
762
763 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
764 const u8 *resp, size_t resp_len,
765 const struct ieee80211_csa_settings *csa)
766 {
767 struct probe_resp *new, *old;
768
769 if (!resp || !resp_len)
770 return 1;
771
772 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
773
774 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
775 if (!new)
776 return -ENOMEM;
777
778 new->len = resp_len;
779 memcpy(new->data, resp, resp_len);
780
781 if (csa)
782 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
783 csa->n_counter_offsets_presp *
784 sizeof(new->csa_counter_offsets[0]));
785
786 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
787 if (old)
788 kfree_rcu(old, rcu_head);
789
790 return 0;
791 }
792
793 static int ieee80211_set_ftm_responder_params(
794 struct ieee80211_sub_if_data *sdata,
795 const u8 *lci, size_t lci_len,
796 const u8 *civicloc, size_t civicloc_len)
797 {
798 struct ieee80211_ftm_responder_params *new, *old;
799 struct ieee80211_bss_conf *bss_conf;
800 u8 *pos;
801 int len;
802
803 if (!lci_len && !civicloc_len)
804 return 0;
805
806 bss_conf = &sdata->vif.bss_conf;
807 old = bss_conf->ftmr_params;
808 len = lci_len + civicloc_len;
809
810 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
811 if (!new)
812 return -ENOMEM;
813
814 pos = (u8 *)(new + 1);
815 if (lci_len) {
816 new->lci_len = lci_len;
817 new->lci = pos;
818 memcpy(pos, lci, lci_len);
819 pos += lci_len;
820 }
821
822 if (civicloc_len) {
823 new->civicloc_len = civicloc_len;
824 new->civicloc = pos;
825 memcpy(pos, civicloc, civicloc_len);
826 pos += civicloc_len;
827 }
828
829 bss_conf->ftmr_params = new;
830 kfree(old);
831
832 return 0;
833 }
834
835 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
836 struct cfg80211_beacon_data *params,
837 const struct ieee80211_csa_settings *csa)
838 {
839 struct beacon_data *new, *old;
840 int new_head_len, new_tail_len;
841 int size, err;
842 u32 changed = BSS_CHANGED_BEACON;
843
844 old = sdata_dereference(sdata->u.ap.beacon, sdata);
845
846
847 /* Need to have a beacon head if we don't have one yet */
848 if (!params->head && !old)
849 return -EINVAL;
850
851 /* new or old head? */
852 if (params->head)
853 new_head_len = params->head_len;
854 else
855 new_head_len = old->head_len;
856
857 /* new or old tail? */
858 if (params->tail || !old)
859 /* params->tail_len will be zero for !params->tail */
860 new_tail_len = params->tail_len;
861 else
862 new_tail_len = old->tail_len;
863
864 size = sizeof(*new) + new_head_len + new_tail_len;
865
866 new = kzalloc(size, GFP_KERNEL);
867 if (!new)
868 return -ENOMEM;
869
870 /* start filling the new info now */
871
872 /*
873 * pointers go into the block we allocated,
874 * memory is | beacon_data | head | tail |
875 */
876 new->head = ((u8 *) new) + sizeof(*new);
877 new->tail = new->head + new_head_len;
878 new->head_len = new_head_len;
879 new->tail_len = new_tail_len;
880
881 if (csa) {
882 new->csa_current_counter = csa->count;
883 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
884 csa->n_counter_offsets_beacon *
885 sizeof(new->csa_counter_offsets[0]));
886 }
887
888 /* copy in head */
889 if (params->head)
890 memcpy(new->head, params->head, new_head_len);
891 else
892 memcpy(new->head, old->head, new_head_len);
893
894 /* copy in optional tail */
895 if (params->tail)
896 memcpy(new->tail, params->tail, new_tail_len);
897 else
898 if (old)
899 memcpy(new->tail, old->tail, new_tail_len);
900
901 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
902 params->probe_resp_len, csa);
903 if (err < 0)
904 return err;
905 if (err == 0)
906 changed |= BSS_CHANGED_AP_PROBE_RESP;
907
908 if (params->ftm_responder != -1) {
909 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
910 err = ieee80211_set_ftm_responder_params(sdata,
911 params->lci,
912 params->lci_len,
913 params->civicloc,
914 params->civicloc_len);
915
916 if (err < 0)
917 return err;
918
919 changed |= BSS_CHANGED_FTM_RESPONDER;
920 }
921
922 rcu_assign_pointer(sdata->u.ap.beacon, new);
923
924 if (old)
925 kfree_rcu(old, rcu_head);
926
927 return changed;
928 }
929
930 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
931 struct cfg80211_ap_settings *params)
932 {
933 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
934 struct ieee80211_local *local = sdata->local;
935 struct beacon_data *old;
936 struct ieee80211_sub_if_data *vlan;
937 u32 changed = BSS_CHANGED_BEACON_INT |
938 BSS_CHANGED_BEACON_ENABLED |
939 BSS_CHANGED_BEACON |
940 BSS_CHANGED_SSID |
941 BSS_CHANGED_P2P_PS |
942 BSS_CHANGED_TXPOWER;
943 int err;
944 int prev_beacon_int;
945
946 old = sdata_dereference(sdata->u.ap.beacon, sdata);
947 if (old)
948 return -EALREADY;
949
950 switch (params->smps_mode) {
951 case NL80211_SMPS_OFF:
952 sdata->smps_mode = IEEE80211_SMPS_OFF;
953 break;
954 case NL80211_SMPS_STATIC:
955 sdata->smps_mode = IEEE80211_SMPS_STATIC;
956 break;
957 case NL80211_SMPS_DYNAMIC:
958 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
959 break;
960 default:
961 return -EINVAL;
962 }
963 sdata->u.ap.req_smps = sdata->smps_mode;
964
965 sdata->needed_rx_chains = sdata->local->rx_chains;
966
967 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
968 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
969
970 if (params->he_cap)
971 sdata->vif.bss_conf.he_support = true;
972
973 mutex_lock(&local->mtx);
974 err = ieee80211_vif_use_channel(sdata, &params->chandef,
975 IEEE80211_CHANCTX_SHARED);
976 if (!err)
977 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
978 mutex_unlock(&local->mtx);
979 if (err) {
980 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
981 return err;
982 }
983
984 /*
985 * Apply control port protocol, this allows us to
986 * not encrypt dynamic WEP control frames.
987 */
988 sdata->control_port_protocol = params->crypto.control_port_ethertype;
989 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
990 sdata->control_port_over_nl80211 =
991 params->crypto.control_port_over_nl80211;
992 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
993 &params->crypto,
994 sdata->vif.type);
995
996 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
997 vlan->control_port_protocol =
998 params->crypto.control_port_ethertype;
999 vlan->control_port_no_encrypt =
1000 params->crypto.control_port_no_encrypt;
1001 vlan->control_port_over_nl80211 =
1002 params->crypto.control_port_over_nl80211;
1003 vlan->encrypt_headroom =
1004 ieee80211_cs_headroom(sdata->local,
1005 &params->crypto,
1006 vlan->vif.type);
1007 }
1008
1009 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1010 sdata->vif.bss_conf.enable_beacon = true;
1011 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1012
1013 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1014 if (params->ssid_len)
1015 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1016 params->ssid_len);
1017 sdata->vif.bss_conf.hidden_ssid =
1018 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1019
1020 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1021 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1022 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1023 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1024 if (params->p2p_opp_ps)
1025 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1026 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1027
1028 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1029 if (err < 0) {
1030 ieee80211_vif_release_channel(sdata);
1031 return err;
1032 }
1033 changed |= err;
1034
1035 err = drv_start_ap(sdata->local, sdata);
1036 if (err) {
1037 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1038
1039 if (old)
1040 kfree_rcu(old, rcu_head);
1041 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1042 ieee80211_vif_release_channel(sdata);
1043 return err;
1044 }
1045
1046 ieee80211_recalc_dtim(local, sdata);
1047 ieee80211_bss_info_change_notify(sdata, changed);
1048
1049 netif_carrier_on(dev);
1050 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1051 netif_carrier_on(vlan->dev);
1052
1053 return 0;
1054 }
1055
1056 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1057 struct cfg80211_beacon_data *params)
1058 {
1059 struct ieee80211_sub_if_data *sdata;
1060 struct beacon_data *old;
1061 int err;
1062
1063 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1064 sdata_assert_lock(sdata);
1065
1066 /* don't allow changing the beacon while CSA is in place - offset
1067 * of channel switch counter may change
1068 */
1069 if (sdata->vif.csa_active)
1070 return -EBUSY;
1071
1072 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1073 if (!old)
1074 return -ENOENT;
1075
1076 err = ieee80211_assign_beacon(sdata, params, NULL);
1077 if (err < 0)
1078 return err;
1079 ieee80211_bss_info_change_notify(sdata, err);
1080 return 0;
1081 }
1082
1083 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1084 {
1085 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1086 struct ieee80211_sub_if_data *vlan;
1087 struct ieee80211_local *local = sdata->local;
1088 struct beacon_data *old_beacon;
1089 struct probe_resp *old_probe_resp;
1090 struct cfg80211_chan_def chandef;
1091
1092 sdata_assert_lock(sdata);
1093
1094 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1095 if (!old_beacon)
1096 return -ENOENT;
1097 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1098
1099 /* abort any running channel switch */
1100 mutex_lock(&local->mtx);
1101 sdata->vif.csa_active = false;
1102 if (sdata->csa_block_tx) {
1103 ieee80211_wake_vif_queues(local, sdata,
1104 IEEE80211_QUEUE_STOP_REASON_CSA);
1105 sdata->csa_block_tx = false;
1106 }
1107
1108 mutex_unlock(&local->mtx);
1109
1110 kfree(sdata->u.ap.next_beacon);
1111 sdata->u.ap.next_beacon = NULL;
1112
1113 /* turn off carrier for this interface and dependent VLANs */
1114 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1115 netif_carrier_off(vlan->dev);
1116 netif_carrier_off(dev);
1117
1118 /* remove beacon and probe response */
1119 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1120 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1121 kfree_rcu(old_beacon, rcu_head);
1122 if (old_probe_resp)
1123 kfree_rcu(old_probe_resp, rcu_head);
1124 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1125
1126 kfree(sdata->vif.bss_conf.ftmr_params);
1127 sdata->vif.bss_conf.ftmr_params = NULL;
1128
1129 __sta_info_flush(sdata, true);
1130 ieee80211_free_keys(sdata, true);
1131
1132 sdata->vif.bss_conf.enable_beacon = false;
1133 sdata->vif.bss_conf.ssid_len = 0;
1134 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1135 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1136
1137 if (sdata->wdev.cac_started) {
1138 chandef = sdata->vif.bss_conf.chandef;
1139 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1140 cfg80211_cac_event(sdata->dev, &chandef,
1141 NL80211_RADAR_CAC_ABORTED,
1142 GFP_KERNEL);
1143 }
1144
1145 drv_stop_ap(sdata->local, sdata);
1146
1147 /* free all potentially still buffered bcast frames */
1148 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1149 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1150
1151 mutex_lock(&local->mtx);
1152 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1153 ieee80211_vif_release_channel(sdata);
1154 mutex_unlock(&local->mtx);
1155
1156 return 0;
1157 }
1158
1159 static int sta_apply_auth_flags(struct ieee80211_local *local,
1160 struct sta_info *sta,
1161 u32 mask, u32 set)
1162 {
1163 int ret;
1164
1165 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1166 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1167 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1168 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1169 if (ret)
1170 return ret;
1171 }
1172
1173 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1174 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1175 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1176 /*
1177 * When peer becomes associated, init rate control as
1178 * well. Some drivers require rate control initialized
1179 * before drv_sta_state() is called.
1180 */
1181 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1182 rate_control_rate_init(sta);
1183
1184 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1185 if (ret)
1186 return ret;
1187 }
1188
1189 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1190 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1191 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1192 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1193 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1194 else
1195 ret = 0;
1196 if (ret)
1197 return ret;
1198 }
1199
1200 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1201 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1202 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1203 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1204 if (ret)
1205 return ret;
1206 }
1207
1208 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1209 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1210 test_sta_flag(sta, WLAN_STA_AUTH)) {
1211 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1212 if (ret)
1213 return ret;
1214 }
1215
1216 return 0;
1217 }
1218
1219 static void sta_apply_mesh_params(struct ieee80211_local *local,
1220 struct sta_info *sta,
1221 struct station_parameters *params)
1222 {
1223 #ifdef CONFIG_MAC80211_MESH
1224 struct ieee80211_sub_if_data *sdata = sta->sdata;
1225 u32 changed = 0;
1226
1227 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1228 switch (params->plink_state) {
1229 case NL80211_PLINK_ESTAB:
1230 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1231 changed = mesh_plink_inc_estab_count(sdata);
1232 sta->mesh->plink_state = params->plink_state;
1233 sta->mesh->aid = params->peer_aid;
1234
1235 ieee80211_mps_sta_status_update(sta);
1236 changed |= ieee80211_mps_set_sta_local_pm(sta,
1237 sdata->u.mesh.mshcfg.power_mode);
1238
1239 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1240 /* init at low value */
1241 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1242
1243 break;
1244 case NL80211_PLINK_LISTEN:
1245 case NL80211_PLINK_BLOCKED:
1246 case NL80211_PLINK_OPN_SNT:
1247 case NL80211_PLINK_OPN_RCVD:
1248 case NL80211_PLINK_CNF_RCVD:
1249 case NL80211_PLINK_HOLDING:
1250 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1251 changed = mesh_plink_dec_estab_count(sdata);
1252 sta->mesh->plink_state = params->plink_state;
1253
1254 ieee80211_mps_sta_status_update(sta);
1255 changed |= ieee80211_mps_set_sta_local_pm(sta,
1256 NL80211_MESH_POWER_UNKNOWN);
1257 break;
1258 default:
1259 /* nothing */
1260 break;
1261 }
1262 }
1263
1264 switch (params->plink_action) {
1265 case NL80211_PLINK_ACTION_NO_ACTION:
1266 /* nothing */
1267 break;
1268 case NL80211_PLINK_ACTION_OPEN:
1269 changed |= mesh_plink_open(sta);
1270 break;
1271 case NL80211_PLINK_ACTION_BLOCK:
1272 changed |= mesh_plink_block(sta);
1273 break;
1274 }
1275
1276 if (params->local_pm)
1277 changed |= ieee80211_mps_set_sta_local_pm(sta,
1278 params->local_pm);
1279
1280 ieee80211_mbss_info_change_notify(sdata, changed);
1281 #endif
1282 }
1283
1284 static int sta_apply_parameters(struct ieee80211_local *local,
1285 struct sta_info *sta,
1286 struct station_parameters *params)
1287 {
1288 int ret = 0;
1289 struct ieee80211_supported_band *sband;
1290 struct ieee80211_sub_if_data *sdata = sta->sdata;
1291 u32 mask, set;
1292
1293 sband = ieee80211_get_sband(sdata);
1294 if (!sband)
1295 return -EINVAL;
1296
1297 mask = params->sta_flags_mask;
1298 set = params->sta_flags_set;
1299
1300 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1301 /*
1302 * In mesh mode, ASSOCIATED isn't part of the nl80211
1303 * API but must follow AUTHENTICATED for driver state.
1304 */
1305 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1306 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1307 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1308 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1309 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1310 /*
1311 * TDLS -- everything follows authorized, but
1312 * only becoming authorized is possible, not
1313 * going back
1314 */
1315 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1316 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1317 BIT(NL80211_STA_FLAG_ASSOCIATED);
1318 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1319 BIT(NL80211_STA_FLAG_ASSOCIATED);
1320 }
1321 }
1322
1323 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1324 local->hw.queues >= IEEE80211_NUM_ACS)
1325 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1326
1327 /* auth flags will be set later for TDLS,
1328 * and for unassociated stations that move to assocaited */
1329 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1330 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1331 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1332 ret = sta_apply_auth_flags(local, sta, mask, set);
1333 if (ret)
1334 return ret;
1335 }
1336
1337 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1338 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1339 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1340 else
1341 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1342 }
1343
1344 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1345 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1346 if (set & BIT(NL80211_STA_FLAG_MFP))
1347 set_sta_flag(sta, WLAN_STA_MFP);
1348 else
1349 clear_sta_flag(sta, WLAN_STA_MFP);
1350 }
1351
1352 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1353 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1354 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1355 else
1356 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1357 }
1358
1359 /* mark TDLS channel switch support, if the AP allows it */
1360 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1361 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1362 params->ext_capab_len >= 4 &&
1363 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1364 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1365
1366 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1367 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1368 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1369 params->ext_capab_len >= 8 &&
1370 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1371 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1372
1373 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1374 sta->sta.uapsd_queues = params->uapsd_queues;
1375 sta->sta.max_sp = params->max_sp;
1376 }
1377
1378 /* The sender might not have sent the last bit, consider it to be 0 */
1379 if (params->ext_capab_len >= 8) {
1380 u8 val = (params->ext_capab[7] &
1381 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1382
1383 /* we did get all the bits, take the MSB as well */
1384 if (params->ext_capab_len >= 9) {
1385 u8 val_msb = params->ext_capab[8] &
1386 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1387 val_msb <<= 1;
1388 val |= val_msb;
1389 }
1390
1391 switch (val) {
1392 case 1:
1393 sta->sta.max_amsdu_subframes = 32;
1394 break;
1395 case 2:
1396 sta->sta.max_amsdu_subframes = 16;
1397 break;
1398 case 3:
1399 sta->sta.max_amsdu_subframes = 8;
1400 break;
1401 default:
1402 sta->sta.max_amsdu_subframes = 0;
1403 }
1404 }
1405
1406 /*
1407 * cfg80211 validates this (1-2007) and allows setting the AID
1408 * only when creating a new station entry
1409 */
1410 if (params->aid)
1411 sta->sta.aid = params->aid;
1412
1413 /*
1414 * Some of the following updates would be racy if called on an
1415 * existing station, via ieee80211_change_station(). However,
1416 * all such changes are rejected by cfg80211 except for updates
1417 * changing the supported rates on an existing but not yet used
1418 * TDLS peer.
1419 */
1420
1421 if (params->listen_interval >= 0)
1422 sta->listen_interval = params->listen_interval;
1423
1424 if (params->supported_rates) {
1425 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1426 sband, params->supported_rates,
1427 params->supported_rates_len,
1428 &sta->sta.supp_rates[sband->band]);
1429 }
1430
1431 if (params->ht_capa)
1432 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1433 params->ht_capa, sta);
1434
1435 /* VHT can override some HT caps such as the A-MSDU max length */
1436 if (params->vht_capa)
1437 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1438 params->vht_capa, sta);
1439
1440 if (params->he_capa)
1441 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1442 (void *)params->he_capa,
1443 params->he_capa_len, sta);
1444
1445 if (params->opmode_notif_used) {
1446 /* returned value is only needed for rc update, but the
1447 * rc isn't initialized here yet, so ignore it
1448 */
1449 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1450 sband->band);
1451 }
1452
1453 if (params->support_p2p_ps >= 0)
1454 sta->sta.support_p2p_ps = params->support_p2p_ps;
1455
1456 if (ieee80211_vif_is_mesh(&sdata->vif))
1457 sta_apply_mesh_params(local, sta, params);
1458
1459 if (params->airtime_weight)
1460 sta->airtime_weight = params->airtime_weight;
1461
1462 /* set the STA state after all sta info from usermode has been set */
1463 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1464 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1465 ret = sta_apply_auth_flags(local, sta, mask, set);
1466 if (ret)
1467 return ret;
1468 }
1469
1470 return 0;
1471 }
1472
1473 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1474 const u8 *mac,
1475 struct station_parameters *params)
1476 {
1477 struct ieee80211_local *local = wiphy_priv(wiphy);
1478 struct sta_info *sta;
1479 struct ieee80211_sub_if_data *sdata;
1480 int err;
1481 int layer2_update;
1482
1483 if (params->vlan) {
1484 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1485
1486 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1487 sdata->vif.type != NL80211_IFTYPE_AP)
1488 return -EINVAL;
1489 } else
1490 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1491
1492 if (ether_addr_equal(mac, sdata->vif.addr))
1493 return -EINVAL;
1494
1495 if (is_multicast_ether_addr(mac))
1496 return -EINVAL;
1497
1498 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1499 if (!sta)
1500 return -ENOMEM;
1501
1502 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1503 sta->sta.tdls = true;
1504
1505 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION &&
1506 !sdata->u.mgd.associated)
1507 return -EINVAL;
1508
1509 err = sta_apply_parameters(local, sta, params);
1510 if (err) {
1511 sta_info_free(local, sta);
1512 return err;
1513 }
1514
1515 /*
1516 * for TDLS and for unassociated station, rate control should be
1517 * initialized only when rates are known and station is marked
1518 * authorized/associated
1519 */
1520 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1521 test_sta_flag(sta, WLAN_STA_ASSOC))
1522 rate_control_rate_init(sta);
1523
1524 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1525 sdata->vif.type == NL80211_IFTYPE_AP;
1526
1527 err = sta_info_insert_rcu(sta);
1528 if (err) {
1529 rcu_read_unlock();
1530 return err;
1531 }
1532
1533 if (layer2_update)
1534 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr);
1535
1536 rcu_read_unlock();
1537
1538 return 0;
1539 }
1540
1541 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1542 struct station_del_parameters *params)
1543 {
1544 struct ieee80211_sub_if_data *sdata;
1545
1546 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1547
1548 if (params->mac)
1549 return sta_info_destroy_addr_bss(sdata, params->mac);
1550
1551 sta_info_flush(sdata);
1552 return 0;
1553 }
1554
1555 static int ieee80211_change_station(struct wiphy *wiphy,
1556 struct net_device *dev, const u8 *mac,
1557 struct station_parameters *params)
1558 {
1559 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1560 struct ieee80211_local *local = wiphy_priv(wiphy);
1561 struct sta_info *sta;
1562 struct ieee80211_sub_if_data *vlansdata;
1563 enum cfg80211_station_type statype;
1564 int err;
1565
1566 mutex_lock(&local->sta_mtx);
1567
1568 sta = sta_info_get_bss(sdata, mac);
1569 if (!sta) {
1570 err = -ENOENT;
1571 goto out_err;
1572 }
1573
1574 switch (sdata->vif.type) {
1575 case NL80211_IFTYPE_MESH_POINT:
1576 if (sdata->u.mesh.user_mpm)
1577 statype = CFG80211_STA_MESH_PEER_USER;
1578 else
1579 statype = CFG80211_STA_MESH_PEER_KERNEL;
1580 break;
1581 case NL80211_IFTYPE_ADHOC:
1582 statype = CFG80211_STA_IBSS;
1583 break;
1584 case NL80211_IFTYPE_STATION:
1585 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1586 statype = CFG80211_STA_AP_STA;
1587 break;
1588 }
1589 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1590 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1591 else
1592 statype = CFG80211_STA_TDLS_PEER_SETUP;
1593 break;
1594 case NL80211_IFTYPE_AP:
1595 case NL80211_IFTYPE_AP_VLAN:
1596 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1597 statype = CFG80211_STA_AP_CLIENT;
1598 else
1599 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1600 break;
1601 default:
1602 err = -EOPNOTSUPP;
1603 goto out_err;
1604 }
1605
1606 err = cfg80211_check_station_change(wiphy, params, statype);
1607 if (err)
1608 goto out_err;
1609
1610 if (params->vlan && params->vlan != sta->sdata->dev) {
1611 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1612
1613 if (params->vlan->ieee80211_ptr->use_4addr) {
1614 if (vlansdata->u.vlan.sta) {
1615 err = -EBUSY;
1616 goto out_err;
1617 }
1618
1619 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1620 __ieee80211_check_fast_rx_iface(vlansdata);
1621 }
1622
1623 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1624 sta->sdata->u.vlan.sta)
1625 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1626
1627 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1628 ieee80211_vif_dec_num_mcast(sta->sdata);
1629
1630 sta->sdata = vlansdata;
1631 ieee80211_check_fast_xmit(sta);
1632
1633 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1634 ieee80211_vif_inc_num_mcast(sta->sdata);
1635
1636 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr);
1637 }
1638
1639 err = sta_apply_parameters(local, sta, params);
1640 if (err)
1641 goto out_err;
1642
1643 mutex_unlock(&local->sta_mtx);
1644
1645 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1646 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1647 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1648 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1649 sta_info_tx_streams(sta) != 1) {
1650 ht_dbg(sta->sdata,
1651 "%pM just authorized and MIMO capable - update SMPS\n",
1652 sta->sta.addr);
1653 ieee80211_send_smps_action(sta->sdata,
1654 sta->sdata->bss->req_smps,
1655 sta->sta.addr,
1656 sta->sdata->vif.bss_conf.bssid);
1657 }
1658
1659 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1660 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1661 ieee80211_recalc_ps(local);
1662 ieee80211_recalc_ps_vif(sdata);
1663 }
1664
1665 return 0;
1666 out_err:
1667 mutex_unlock(&local->sta_mtx);
1668 return err;
1669 }
1670
1671 #ifdef CONFIG_MAC80211_MESH
1672 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1673 const u8 *dst, const u8 *next_hop)
1674 {
1675 struct ieee80211_sub_if_data *sdata;
1676 struct mesh_path *mpath;
1677 struct sta_info *sta;
1678
1679 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1680
1681 rcu_read_lock();
1682 sta = sta_info_get(sdata, next_hop);
1683 if (!sta) {
1684 rcu_read_unlock();
1685 return -ENOENT;
1686 }
1687
1688 mpath = mesh_path_add(sdata, dst);
1689 if (IS_ERR(mpath)) {
1690 rcu_read_unlock();
1691 return PTR_ERR(mpath);
1692 }
1693
1694 mesh_path_fix_nexthop(mpath, sta);
1695
1696 rcu_read_unlock();
1697 return 0;
1698 }
1699
1700 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1701 const u8 *dst)
1702 {
1703 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1704
1705 if (dst)
1706 return mesh_path_del(sdata, dst);
1707
1708 mesh_path_flush_by_iface(sdata);
1709 return 0;
1710 }
1711
1712 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1713 const u8 *dst, const u8 *next_hop)
1714 {
1715 struct ieee80211_sub_if_data *sdata;
1716 struct mesh_path *mpath;
1717 struct sta_info *sta;
1718
1719 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1720
1721 rcu_read_lock();
1722
1723 sta = sta_info_get(sdata, next_hop);
1724 if (!sta) {
1725 rcu_read_unlock();
1726 return -ENOENT;
1727 }
1728
1729 mpath = mesh_path_lookup(sdata, dst);
1730 if (!mpath) {
1731 rcu_read_unlock();
1732 return -ENOENT;
1733 }
1734
1735 mesh_path_fix_nexthop(mpath, sta);
1736
1737 rcu_read_unlock();
1738 return 0;
1739 }
1740
1741 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1742 struct mpath_info *pinfo)
1743 {
1744 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1745
1746 if (next_hop_sta)
1747 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1748 else
1749 eth_zero_addr(next_hop);
1750
1751 memset(pinfo, 0, sizeof(*pinfo));
1752
1753 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1754
1755 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1756 MPATH_INFO_SN |
1757 MPATH_INFO_METRIC |
1758 MPATH_INFO_EXPTIME |
1759 MPATH_INFO_DISCOVERY_TIMEOUT |
1760 MPATH_INFO_DISCOVERY_RETRIES |
1761 MPATH_INFO_FLAGS |
1762 MPATH_INFO_HOP_COUNT |
1763 MPATH_INFO_PATH_CHANGE;
1764
1765 pinfo->frame_qlen = mpath->frame_queue.qlen;
1766 pinfo->sn = mpath->sn;
1767 pinfo->metric = mpath->metric;
1768 if (time_before(jiffies, mpath->exp_time))
1769 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1770 pinfo->discovery_timeout =
1771 jiffies_to_msecs(mpath->discovery_timeout);
1772 pinfo->discovery_retries = mpath->discovery_retries;
1773 if (mpath->flags & MESH_PATH_ACTIVE)
1774 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1775 if (mpath->flags & MESH_PATH_RESOLVING)
1776 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1777 if (mpath->flags & MESH_PATH_SN_VALID)
1778 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1779 if (mpath->flags & MESH_PATH_FIXED)
1780 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1781 if (mpath->flags & MESH_PATH_RESOLVED)
1782 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1783 pinfo->hop_count = mpath->hop_count;
1784 pinfo->path_change_count = mpath->path_change_count;
1785 }
1786
1787 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1788 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1789
1790 {
1791 struct ieee80211_sub_if_data *sdata;
1792 struct mesh_path *mpath;
1793
1794 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1795
1796 rcu_read_lock();
1797 mpath = mesh_path_lookup(sdata, dst);
1798 if (!mpath) {
1799 rcu_read_unlock();
1800 return -ENOENT;
1801 }
1802 memcpy(dst, mpath->dst, ETH_ALEN);
1803 mpath_set_pinfo(mpath, next_hop, pinfo);
1804 rcu_read_unlock();
1805 return 0;
1806 }
1807
1808 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1809 int idx, u8 *dst, u8 *next_hop,
1810 struct mpath_info *pinfo)
1811 {
1812 struct ieee80211_sub_if_data *sdata;
1813 struct mesh_path *mpath;
1814
1815 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1816
1817 rcu_read_lock();
1818 mpath = mesh_path_lookup_by_idx(sdata, idx);
1819 if (!mpath) {
1820 rcu_read_unlock();
1821 return -ENOENT;
1822 }
1823 memcpy(dst, mpath->dst, ETH_ALEN);
1824 mpath_set_pinfo(mpath, next_hop, pinfo);
1825 rcu_read_unlock();
1826 return 0;
1827 }
1828
1829 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1830 struct mpath_info *pinfo)
1831 {
1832 memset(pinfo, 0, sizeof(*pinfo));
1833 memcpy(mpp, mpath->mpp, ETH_ALEN);
1834
1835 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1836 }
1837
1838 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1839 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1840
1841 {
1842 struct ieee80211_sub_if_data *sdata;
1843 struct mesh_path *mpath;
1844
1845 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1846
1847 rcu_read_lock();
1848 mpath = mpp_path_lookup(sdata, dst);
1849 if (!mpath) {
1850 rcu_read_unlock();
1851 return -ENOENT;
1852 }
1853 memcpy(dst, mpath->dst, ETH_ALEN);
1854 mpp_set_pinfo(mpath, mpp, pinfo);
1855 rcu_read_unlock();
1856 return 0;
1857 }
1858
1859 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1860 int idx, u8 *dst, u8 *mpp,
1861 struct mpath_info *pinfo)
1862 {
1863 struct ieee80211_sub_if_data *sdata;
1864 struct mesh_path *mpath;
1865
1866 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1867
1868 rcu_read_lock();
1869 mpath = mpp_path_lookup_by_idx(sdata, idx);
1870 if (!mpath) {
1871 rcu_read_unlock();
1872 return -ENOENT;
1873 }
1874 memcpy(dst, mpath->dst, ETH_ALEN);
1875 mpp_set_pinfo(mpath, mpp, pinfo);
1876 rcu_read_unlock();
1877 return 0;
1878 }
1879
1880 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1881 struct net_device *dev,
1882 struct mesh_config *conf)
1883 {
1884 struct ieee80211_sub_if_data *sdata;
1885 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1886
1887 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1888 return 0;
1889 }
1890
1891 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1892 {
1893 return (mask >> (parm-1)) & 0x1;
1894 }
1895
1896 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1897 const struct mesh_setup *setup)
1898 {
1899 u8 *new_ie;
1900 const u8 *old_ie;
1901 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1902 struct ieee80211_sub_if_data, u.mesh);
1903
1904 /* allocate information elements */
1905 new_ie = NULL;
1906 old_ie = ifmsh->ie;
1907
1908 if (setup->ie_len) {
1909 new_ie = kmemdup(setup->ie, setup->ie_len,
1910 GFP_KERNEL);
1911 if (!new_ie)
1912 return -ENOMEM;
1913 }
1914 ifmsh->ie_len = setup->ie_len;
1915 ifmsh->ie = new_ie;
1916 kfree(old_ie);
1917
1918 /* now copy the rest of the setup parameters */
1919 ifmsh->mesh_id_len = setup->mesh_id_len;
1920 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1921 ifmsh->mesh_sp_id = setup->sync_method;
1922 ifmsh->mesh_pp_id = setup->path_sel_proto;
1923 ifmsh->mesh_pm_id = setup->path_metric;
1924 ifmsh->user_mpm = setup->user_mpm;
1925 ifmsh->mesh_auth_id = setup->auth_id;
1926 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1927 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1928 if (setup->is_authenticated)
1929 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1930 if (setup->is_secure)
1931 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1932
1933 /* mcast rate setting in Mesh Node */
1934 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1935 sizeof(setup->mcast_rate));
1936 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1937
1938 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1939 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1940
1941 return 0;
1942 }
1943
1944 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1945 struct net_device *dev, u32 mask,
1946 const struct mesh_config *nconf)
1947 {
1948 struct mesh_config *conf;
1949 struct ieee80211_sub_if_data *sdata;
1950 struct ieee80211_if_mesh *ifmsh;
1951
1952 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1953 ifmsh = &sdata->u.mesh;
1954
1955 /* Set the config options which we are interested in setting */
1956 conf = &(sdata->u.mesh.mshcfg);
1957 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1958 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1959 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1960 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1961 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1962 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1963 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1964 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1965 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1966 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1967 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1968 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1969 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1970 conf->element_ttl = nconf->element_ttl;
1971 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1972 if (ifmsh->user_mpm)
1973 return -EBUSY;
1974 conf->auto_open_plinks = nconf->auto_open_plinks;
1975 }
1976 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1977 conf->dot11MeshNbrOffsetMaxNeighbor =
1978 nconf->dot11MeshNbrOffsetMaxNeighbor;
1979 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1980 conf->dot11MeshHWMPmaxPREQretries =
1981 nconf->dot11MeshHWMPmaxPREQretries;
1982 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1983 conf->path_refresh_time = nconf->path_refresh_time;
1984 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1985 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1986 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1987 conf->dot11MeshHWMPactivePathTimeout =
1988 nconf->dot11MeshHWMPactivePathTimeout;
1989 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1990 conf->dot11MeshHWMPpreqMinInterval =
1991 nconf->dot11MeshHWMPpreqMinInterval;
1992 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1993 conf->dot11MeshHWMPperrMinInterval =
1994 nconf->dot11MeshHWMPperrMinInterval;
1995 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1996 mask))
1997 conf->dot11MeshHWMPnetDiameterTraversalTime =
1998 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1999 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2000 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2001 ieee80211_mesh_root_setup(ifmsh);
2002 }
2003 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2004 /* our current gate announcement implementation rides on root
2005 * announcements, so require this ifmsh to also be a root node
2006 * */
2007 if (nconf->dot11MeshGateAnnouncementProtocol &&
2008 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2009 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2010 ieee80211_mesh_root_setup(ifmsh);
2011 }
2012 conf->dot11MeshGateAnnouncementProtocol =
2013 nconf->dot11MeshGateAnnouncementProtocol;
2014 }
2015 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2016 conf->dot11MeshHWMPRannInterval =
2017 nconf->dot11MeshHWMPRannInterval;
2018 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2019 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2020 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2021 /* our RSSI threshold implementation is supported only for
2022 * devices that report signal in dBm.
2023 */
2024 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2025 return -ENOTSUPP;
2026 conf->rssi_threshold = nconf->rssi_threshold;
2027 }
2028 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2029 conf->ht_opmode = nconf->ht_opmode;
2030 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2031 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2032 }
2033 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2034 conf->dot11MeshHWMPactivePathToRootTimeout =
2035 nconf->dot11MeshHWMPactivePathToRootTimeout;
2036 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2037 conf->dot11MeshHWMProotInterval =
2038 nconf->dot11MeshHWMProotInterval;
2039 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2040 conf->dot11MeshHWMPconfirmationInterval =
2041 nconf->dot11MeshHWMPconfirmationInterval;
2042 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2043 conf->power_mode = nconf->power_mode;
2044 ieee80211_mps_local_status_update(sdata);
2045 }
2046 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2047 conf->dot11MeshAwakeWindowDuration =
2048 nconf->dot11MeshAwakeWindowDuration;
2049 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2050 conf->plink_timeout = nconf->plink_timeout;
2051 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2052 conf->dot11MeshConnectedToMeshGate =
2053 nconf->dot11MeshConnectedToMeshGate;
2054 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2055 return 0;
2056 }
2057
2058 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2059 const struct mesh_config *conf,
2060 const struct mesh_setup *setup)
2061 {
2062 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2063 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2064 int err;
2065
2066 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2067 err = copy_mesh_setup(ifmsh, setup);
2068 if (err)
2069 return err;
2070
2071 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2072
2073 /* can mesh use other SMPS modes? */
2074 sdata->smps_mode = IEEE80211_SMPS_OFF;
2075 sdata->needed_rx_chains = sdata->local->rx_chains;
2076
2077 mutex_lock(&sdata->local->mtx);
2078 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2079 IEEE80211_CHANCTX_SHARED);
2080 mutex_unlock(&sdata->local->mtx);
2081 if (err)
2082 return err;
2083
2084 return ieee80211_start_mesh(sdata);
2085 }
2086
2087 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2088 {
2089 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2090
2091 ieee80211_stop_mesh(sdata);
2092 mutex_lock(&sdata->local->mtx);
2093 ieee80211_vif_release_channel(sdata);
2094 mutex_unlock(&sdata->local->mtx);
2095
2096 return 0;
2097 }
2098 #endif
2099
2100 static int ieee80211_change_bss(struct wiphy *wiphy,
2101 struct net_device *dev,
2102 struct bss_parameters *params)
2103 {
2104 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2105 struct ieee80211_supported_band *sband;
2106 u32 changed = 0;
2107
2108 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2109 return -ENOENT;
2110
2111 sband = ieee80211_get_sband(sdata);
2112 if (!sband)
2113 return -EINVAL;
2114
2115 if (params->use_cts_prot >= 0) {
2116 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2117 changed |= BSS_CHANGED_ERP_CTS_PROT;
2118 }
2119 if (params->use_short_preamble >= 0) {
2120 sdata->vif.bss_conf.use_short_preamble =
2121 params->use_short_preamble;
2122 changed |= BSS_CHANGED_ERP_PREAMBLE;
2123 }
2124
2125 if (!sdata->vif.bss_conf.use_short_slot &&
2126 sband->band == NL80211_BAND_5GHZ) {
2127 sdata->vif.bss_conf.use_short_slot = true;
2128 changed |= BSS_CHANGED_ERP_SLOT;
2129 }
2130
2131 if (params->use_short_slot_time >= 0) {
2132 sdata->vif.bss_conf.use_short_slot =
2133 params->use_short_slot_time;
2134 changed |= BSS_CHANGED_ERP_SLOT;
2135 }
2136
2137 if (params->basic_rates) {
2138 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2139 wiphy->bands[sband->band],
2140 params->basic_rates,
2141 params->basic_rates_len,
2142 &sdata->vif.bss_conf.basic_rates);
2143 changed |= BSS_CHANGED_BASIC_RATES;
2144 ieee80211_check_rate_mask(sdata);
2145 }
2146
2147 if (params->ap_isolate >= 0) {
2148 if (params->ap_isolate)
2149 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2150 else
2151 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2152 ieee80211_check_fast_rx_iface(sdata);
2153 }
2154
2155 if (params->ht_opmode >= 0) {
2156 sdata->vif.bss_conf.ht_operation_mode =
2157 (u16) params->ht_opmode;
2158 changed |= BSS_CHANGED_HT;
2159 }
2160
2161 if (params->p2p_ctwindow >= 0) {
2162 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2163 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2164 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2165 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2166 changed |= BSS_CHANGED_P2P_PS;
2167 }
2168
2169 if (params->p2p_opp_ps > 0) {
2170 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2171 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2172 changed |= BSS_CHANGED_P2P_PS;
2173 } else if (params->p2p_opp_ps == 0) {
2174 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2175 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2176 changed |= BSS_CHANGED_P2P_PS;
2177 }
2178
2179 ieee80211_bss_info_change_notify(sdata, changed);
2180
2181 return 0;
2182 }
2183
2184 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2185 struct net_device *dev,
2186 struct ieee80211_txq_params *params)
2187 {
2188 struct ieee80211_local *local = wiphy_priv(wiphy);
2189 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2190 struct ieee80211_tx_queue_params p;
2191
2192 if (!local->ops->conf_tx)
2193 return -EOPNOTSUPP;
2194
2195 if (local->hw.queues < IEEE80211_NUM_ACS)
2196 return -EOPNOTSUPP;
2197
2198 memset(&p, 0, sizeof(p));
2199 p.aifs = params->aifs;
2200 p.cw_max = params->cwmax;
2201 p.cw_min = params->cwmin;
2202 p.txop = params->txop;
2203
2204 /*
2205 * Setting tx queue params disables u-apsd because it's only
2206 * called in master mode.
2207 */
2208 p.uapsd = false;
2209
2210 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2211
2212 sdata->tx_conf[params->ac] = p;
2213 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2214 wiphy_debug(local->hw.wiphy,
2215 "failed to set TX queue parameters for AC %d\n",
2216 params->ac);
2217 return -EINVAL;
2218 }
2219
2220 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2221
2222 return 0;
2223 }
2224
2225 #ifdef CONFIG_PM
2226 static int ieee80211_suspend(struct wiphy *wiphy,
2227 struct cfg80211_wowlan *wowlan)
2228 {
2229 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2230 }
2231
2232 static int ieee80211_resume(struct wiphy *wiphy)
2233 {
2234 return __ieee80211_resume(wiphy_priv(wiphy));
2235 }
2236 #else
2237 #define ieee80211_suspend NULL
2238 #define ieee80211_resume NULL
2239 #endif
2240
2241 static int ieee80211_scan(struct wiphy *wiphy,
2242 struct cfg80211_scan_request *req)
2243 {
2244 struct ieee80211_sub_if_data *sdata;
2245
2246 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2247
2248 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2249 case NL80211_IFTYPE_STATION:
2250 case NL80211_IFTYPE_ADHOC:
2251 case NL80211_IFTYPE_MESH_POINT:
2252 case NL80211_IFTYPE_P2P_CLIENT:
2253 case NL80211_IFTYPE_P2P_DEVICE:
2254 break;
2255 case NL80211_IFTYPE_P2P_GO:
2256 if (sdata->local->ops->hw_scan)
2257 break;
2258 /*
2259 * FIXME: implement NoA while scanning in software,
2260 * for now fall through to allow scanning only when
2261 * beaconing hasn't been configured yet
2262 */
2263 /* fall through */
2264 case NL80211_IFTYPE_AP:
2265 /*
2266 * If the scan has been forced (and the driver supports
2267 * forcing), don't care about being beaconing already.
2268 * This will create problems to the attached stations (e.g. all
2269 * the frames sent while scanning on other channel will be
2270 * lost)
2271 */
2272 if (sdata->u.ap.beacon &&
2273 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2274 !(req->flags & NL80211_SCAN_FLAG_AP)))
2275 return -EOPNOTSUPP;
2276 break;
2277 case NL80211_IFTYPE_NAN:
2278 default:
2279 return -EOPNOTSUPP;
2280 }
2281
2282 return ieee80211_request_scan(sdata, req);
2283 }
2284
2285 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2286 {
2287 ieee80211_scan_cancel(wiphy_priv(wiphy));
2288 }
2289
2290 static int
2291 ieee80211_sched_scan_start(struct wiphy *wiphy,
2292 struct net_device *dev,
2293 struct cfg80211_sched_scan_request *req)
2294 {
2295 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2296
2297 if (!sdata->local->ops->sched_scan_start)
2298 return -EOPNOTSUPP;
2299
2300 return ieee80211_request_sched_scan_start(sdata, req);
2301 }
2302
2303 static int
2304 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2305 u64 reqid)
2306 {
2307 struct ieee80211_local *local = wiphy_priv(wiphy);
2308
2309 if (!local->ops->sched_scan_stop)
2310 return -EOPNOTSUPP;
2311
2312 return ieee80211_request_sched_scan_stop(local);
2313 }
2314
2315 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2316 struct cfg80211_auth_request *req)
2317 {
2318 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2319 }
2320
2321 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2322 struct cfg80211_assoc_request *req)
2323 {
2324 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2325 }
2326
2327 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2328 struct cfg80211_deauth_request *req)
2329 {
2330 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2331 }
2332
2333 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2334 struct cfg80211_disassoc_request *req)
2335 {
2336 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2337 }
2338
2339 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2340 struct cfg80211_ibss_params *params)
2341 {
2342 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2343 }
2344
2345 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2346 {
2347 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2348 }
2349
2350 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2351 struct ocb_setup *setup)
2352 {
2353 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2354 }
2355
2356 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2357 {
2358 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2359 }
2360
2361 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2362 int rate[NUM_NL80211_BANDS])
2363 {
2364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2365
2366 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2367 sizeof(int) * NUM_NL80211_BANDS);
2368
2369 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2370
2371 return 0;
2372 }
2373
2374 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2375 {
2376 struct ieee80211_local *local = wiphy_priv(wiphy);
2377 int err;
2378
2379 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2380 ieee80211_check_fast_xmit_all(local);
2381
2382 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2383
2384 if (err) {
2385 ieee80211_check_fast_xmit_all(local);
2386 return err;
2387 }
2388 }
2389
2390 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2391 (changed & WIPHY_PARAM_DYN_ACK)) {
2392 s16 coverage_class;
2393
2394 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2395 wiphy->coverage_class : -1;
2396 err = drv_set_coverage_class(local, coverage_class);
2397
2398 if (err)
2399 return err;
2400 }
2401
2402 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2403 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2404
2405 if (err)
2406 return err;
2407 }
2408
2409 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2410 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2411 return -EINVAL;
2412 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2413 }
2414 if (changed & WIPHY_PARAM_RETRY_LONG) {
2415 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2416 return -EINVAL;
2417 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2418 }
2419 if (changed &
2420 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2421 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2422
2423 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2424 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2425 WIPHY_PARAM_TXQ_QUANTUM))
2426 ieee80211_txq_set_params(local);
2427
2428 return 0;
2429 }
2430
2431 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2432 struct wireless_dev *wdev,
2433 enum nl80211_tx_power_setting type, int mbm)
2434 {
2435 struct ieee80211_local *local = wiphy_priv(wiphy);
2436 struct ieee80211_sub_if_data *sdata;
2437 enum nl80211_tx_power_setting txp_type = type;
2438 bool update_txp_type = false;
2439 bool has_monitor = false;
2440
2441 if (wdev) {
2442 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2443
2444 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2445 sdata = rtnl_dereference(local->monitor_sdata);
2446 if (!sdata)
2447 return -EOPNOTSUPP;
2448 }
2449
2450 switch (type) {
2451 case NL80211_TX_POWER_AUTOMATIC:
2452 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2453 txp_type = NL80211_TX_POWER_LIMITED;
2454 break;
2455 case NL80211_TX_POWER_LIMITED:
2456 case NL80211_TX_POWER_FIXED:
2457 if (mbm < 0 || (mbm % 100))
2458 return -EOPNOTSUPP;
2459 sdata->user_power_level = MBM_TO_DBM(mbm);
2460 break;
2461 }
2462
2463 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2464 update_txp_type = true;
2465 sdata->vif.bss_conf.txpower_type = txp_type;
2466 }
2467
2468 ieee80211_recalc_txpower(sdata, update_txp_type);
2469
2470 return 0;
2471 }
2472
2473 switch (type) {
2474 case NL80211_TX_POWER_AUTOMATIC:
2475 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2476 txp_type = NL80211_TX_POWER_LIMITED;
2477 break;
2478 case NL80211_TX_POWER_LIMITED:
2479 case NL80211_TX_POWER_FIXED:
2480 if (mbm < 0 || (mbm % 100))
2481 return -EOPNOTSUPP;
2482 local->user_power_level = MBM_TO_DBM(mbm);
2483 break;
2484 }
2485
2486 mutex_lock(&local->iflist_mtx);
2487 list_for_each_entry(sdata, &local->interfaces, list) {
2488 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2489 has_monitor = true;
2490 continue;
2491 }
2492 sdata->user_power_level = local->user_power_level;
2493 if (txp_type != sdata->vif.bss_conf.txpower_type)
2494 update_txp_type = true;
2495 sdata->vif.bss_conf.txpower_type = txp_type;
2496 }
2497 list_for_each_entry(sdata, &local->interfaces, list) {
2498 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2499 continue;
2500 ieee80211_recalc_txpower(sdata, update_txp_type);
2501 }
2502 mutex_unlock(&local->iflist_mtx);
2503
2504 if (has_monitor) {
2505 sdata = rtnl_dereference(local->monitor_sdata);
2506 if (sdata) {
2507 sdata->user_power_level = local->user_power_level;
2508 if (txp_type != sdata->vif.bss_conf.txpower_type)
2509 update_txp_type = true;
2510 sdata->vif.bss_conf.txpower_type = txp_type;
2511
2512 ieee80211_recalc_txpower(sdata, update_txp_type);
2513 }
2514 }
2515
2516 return 0;
2517 }
2518
2519 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2520 struct wireless_dev *wdev,
2521 int *dbm)
2522 {
2523 struct ieee80211_local *local = wiphy_priv(wiphy);
2524 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2525
2526 if (local->ops->get_txpower)
2527 return drv_get_txpower(local, sdata, dbm);
2528
2529 if (!local->use_chanctx)
2530 *dbm = local->hw.conf.power_level;
2531 else
2532 *dbm = sdata->vif.bss_conf.txpower;
2533
2534 return 0;
2535 }
2536
2537 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2538 const u8 *addr)
2539 {
2540 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2541
2542 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2543
2544 return 0;
2545 }
2546
2547 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2548 {
2549 struct ieee80211_local *local = wiphy_priv(wiphy);
2550
2551 drv_rfkill_poll(local);
2552 }
2553
2554 #ifdef CONFIG_NL80211_TESTMODE
2555 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2556 struct wireless_dev *wdev,
2557 void *data, int len)
2558 {
2559 struct ieee80211_local *local = wiphy_priv(wiphy);
2560 struct ieee80211_vif *vif = NULL;
2561
2562 if (!local->ops->testmode_cmd)
2563 return -EOPNOTSUPP;
2564
2565 if (wdev) {
2566 struct ieee80211_sub_if_data *sdata;
2567
2568 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2569 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2570 vif = &sdata->vif;
2571 }
2572
2573 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2574 }
2575
2576 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2577 struct sk_buff *skb,
2578 struct netlink_callback *cb,
2579 void *data, int len)
2580 {
2581 struct ieee80211_local *local = wiphy_priv(wiphy);
2582
2583 if (!local->ops->testmode_dump)
2584 return -EOPNOTSUPP;
2585
2586 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2587 }
2588 #endif
2589
2590 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2591 enum ieee80211_smps_mode smps_mode)
2592 {
2593 struct sta_info *sta;
2594 enum ieee80211_smps_mode old_req;
2595
2596 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2597 return -EINVAL;
2598
2599 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2600 return 0;
2601
2602 old_req = sdata->u.ap.req_smps;
2603 sdata->u.ap.req_smps = smps_mode;
2604
2605 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2606 if (old_req == smps_mode ||
2607 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2608 return 0;
2609
2610 ht_dbg(sdata,
2611 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2612 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2613
2614 mutex_lock(&sdata->local->sta_mtx);
2615 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2616 /*
2617 * Only stations associated to our AP and
2618 * associated VLANs
2619 */
2620 if (sta->sdata->bss != &sdata->u.ap)
2621 continue;
2622
2623 /* This station doesn't support MIMO - skip it */
2624 if (sta_info_tx_streams(sta) == 1)
2625 continue;
2626
2627 /*
2628 * Don't wake up a STA just to send the action frame
2629 * unless we are getting more restrictive.
2630 */
2631 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2632 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2633 smps_mode)) {
2634 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2635 sta->sta.addr);
2636 continue;
2637 }
2638
2639 /*
2640 * If the STA is not authorized, wait until it gets
2641 * authorized and the action frame will be sent then.
2642 */
2643 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2644 continue;
2645
2646 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2647 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2648 sdata->vif.bss_conf.bssid);
2649 }
2650 mutex_unlock(&sdata->local->sta_mtx);
2651
2652 sdata->smps_mode = smps_mode;
2653 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2654
2655 return 0;
2656 }
2657
2658 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2659 enum ieee80211_smps_mode smps_mode)
2660 {
2661 const u8 *ap;
2662 enum ieee80211_smps_mode old_req;
2663 int err;
2664 struct sta_info *sta;
2665 bool tdls_peer_found = false;
2666
2667 lockdep_assert_held(&sdata->wdev.mtx);
2668
2669 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2670 return -EINVAL;
2671
2672 old_req = sdata->u.mgd.req_smps;
2673 sdata->u.mgd.req_smps = smps_mode;
2674
2675 if (old_req == smps_mode &&
2676 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2677 return 0;
2678
2679 /*
2680 * If not associated, or current association is not an HT
2681 * association, there's no need to do anything, just store
2682 * the new value until we associate.
2683 */
2684 if (!sdata->u.mgd.associated ||
2685 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2686 return 0;
2687
2688 ap = sdata->u.mgd.associated->bssid;
2689
2690 rcu_read_lock();
2691 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2692 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2693 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2694 continue;
2695
2696 tdls_peer_found = true;
2697 break;
2698 }
2699 rcu_read_unlock();
2700
2701 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2702 if (tdls_peer_found || !sdata->u.mgd.powersave)
2703 smps_mode = IEEE80211_SMPS_OFF;
2704 else
2705 smps_mode = IEEE80211_SMPS_DYNAMIC;
2706 }
2707
2708 /* send SM PS frame to AP */
2709 err = ieee80211_send_smps_action(sdata, smps_mode,
2710 ap, ap);
2711 if (err)
2712 sdata->u.mgd.req_smps = old_req;
2713 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2714 ieee80211_teardown_tdls_peers(sdata);
2715
2716 return err;
2717 }
2718
2719 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2720 bool enabled, int timeout)
2721 {
2722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2723 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2724
2725 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2726 return -EOPNOTSUPP;
2727
2728 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2729 return -EOPNOTSUPP;
2730
2731 if (enabled == sdata->u.mgd.powersave &&
2732 timeout == local->dynamic_ps_forced_timeout)
2733 return 0;
2734
2735 sdata->u.mgd.powersave = enabled;
2736 local->dynamic_ps_forced_timeout = timeout;
2737
2738 /* no change, but if automatic follow powersave */
2739 sdata_lock(sdata);
2740 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2741 sdata_unlock(sdata);
2742
2743 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2744 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2745
2746 ieee80211_recalc_ps(local);
2747 ieee80211_recalc_ps_vif(sdata);
2748 ieee80211_check_fast_rx_iface(sdata);
2749
2750 return 0;
2751 }
2752
2753 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2754 struct net_device *dev,
2755 s32 rssi_thold, u32 rssi_hyst)
2756 {
2757 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2758 struct ieee80211_vif *vif = &sdata->vif;
2759 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2760
2761 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2762 rssi_hyst == bss_conf->cqm_rssi_hyst)
2763 return 0;
2764
2765 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2766 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2767 return -EOPNOTSUPP;
2768
2769 bss_conf->cqm_rssi_thold = rssi_thold;
2770 bss_conf->cqm_rssi_hyst = rssi_hyst;
2771 bss_conf->cqm_rssi_low = 0;
2772 bss_conf->cqm_rssi_high = 0;
2773 sdata->u.mgd.last_cqm_event_signal = 0;
2774
2775 /* tell the driver upon association, unless already associated */
2776 if (sdata->u.mgd.associated &&
2777 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2778 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2779
2780 return 0;
2781 }
2782
2783 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2784 struct net_device *dev,
2785 s32 rssi_low, s32 rssi_high)
2786 {
2787 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2788 struct ieee80211_vif *vif = &sdata->vif;
2789 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2790
2791 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2792 return -EOPNOTSUPP;
2793
2794 bss_conf->cqm_rssi_low = rssi_low;
2795 bss_conf->cqm_rssi_high = rssi_high;
2796 bss_conf->cqm_rssi_thold = 0;
2797 bss_conf->cqm_rssi_hyst = 0;
2798 sdata->u.mgd.last_cqm_event_signal = 0;
2799
2800 /* tell the driver upon association, unless already associated */
2801 if (sdata->u.mgd.associated &&
2802 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2803 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2804
2805 return 0;
2806 }
2807
2808 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2809 struct net_device *dev,
2810 const u8 *addr,
2811 const struct cfg80211_bitrate_mask *mask)
2812 {
2813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2814 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2815 int i, ret;
2816
2817 if (!ieee80211_sdata_running(sdata))
2818 return -ENETDOWN;
2819
2820 /*
2821 * If active validate the setting and reject it if it doesn't leave
2822 * at least one basic rate usable, since we really have to be able
2823 * to send something, and if we're an AP we have to be able to do
2824 * so at a basic rate so that all clients can receive it.
2825 */
2826 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2827 sdata->vif.bss_conf.chandef.chan) {
2828 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2829 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2830
2831 if (!(mask->control[band].legacy & basic_rates))
2832 return -EINVAL;
2833 }
2834
2835 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2836 ret = drv_set_bitrate_mask(local, sdata, mask);
2837 if (ret)
2838 return ret;
2839 }
2840
2841 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2842 struct ieee80211_supported_band *sband = wiphy->bands[i];
2843 int j;
2844
2845 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2846 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2847 sizeof(mask->control[i].ht_mcs));
2848 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2849 mask->control[i].vht_mcs,
2850 sizeof(mask->control[i].vht_mcs));
2851
2852 sdata->rc_has_mcs_mask[i] = false;
2853 sdata->rc_has_vht_mcs_mask[i] = false;
2854 if (!sband)
2855 continue;
2856
2857 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2858 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2859 sdata->rc_has_mcs_mask[i] = true;
2860 break;
2861 }
2862 }
2863
2864 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2865 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2866 sdata->rc_has_vht_mcs_mask[i] = true;
2867 break;
2868 }
2869 }
2870 }
2871
2872 return 0;
2873 }
2874
2875 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2876 struct net_device *dev,
2877 struct cfg80211_chan_def *chandef,
2878 u32 cac_time_ms)
2879 {
2880 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2881 struct ieee80211_local *local = sdata->local;
2882 int err;
2883
2884 mutex_lock(&local->mtx);
2885 if (!list_empty(&local->roc_list) || local->scanning) {
2886 err = -EBUSY;
2887 goto out_unlock;
2888 }
2889
2890 /* whatever, but channel contexts should not complain about that one */
2891 sdata->smps_mode = IEEE80211_SMPS_OFF;
2892 sdata->needed_rx_chains = local->rx_chains;
2893
2894 err = ieee80211_vif_use_channel(sdata, chandef,
2895 IEEE80211_CHANCTX_SHARED);
2896 if (err)
2897 goto out_unlock;
2898
2899 ieee80211_queue_delayed_work(&sdata->local->hw,
2900 &sdata->dfs_cac_timer_work,
2901 msecs_to_jiffies(cac_time_ms));
2902
2903 out_unlock:
2904 mutex_unlock(&local->mtx);
2905 return err;
2906 }
2907
2908 static struct cfg80211_beacon_data *
2909 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2910 {
2911 struct cfg80211_beacon_data *new_beacon;
2912 u8 *pos;
2913 int len;
2914
2915 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2916 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2917 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
2918
2919 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2920 if (!new_beacon)
2921 return NULL;
2922
2923 pos = (u8 *)(new_beacon + 1);
2924 if (beacon->head_len) {
2925 new_beacon->head_len = beacon->head_len;
2926 new_beacon->head = pos;
2927 memcpy(pos, beacon->head, beacon->head_len);
2928 pos += beacon->head_len;
2929 }
2930 if (beacon->tail_len) {
2931 new_beacon->tail_len = beacon->tail_len;
2932 new_beacon->tail = pos;
2933 memcpy(pos, beacon->tail, beacon->tail_len);
2934 pos += beacon->tail_len;
2935 }
2936 if (beacon->beacon_ies_len) {
2937 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2938 new_beacon->beacon_ies = pos;
2939 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2940 pos += beacon->beacon_ies_len;
2941 }
2942 if (beacon->proberesp_ies_len) {
2943 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2944 new_beacon->proberesp_ies = pos;
2945 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2946 pos += beacon->proberesp_ies_len;
2947 }
2948 if (beacon->assocresp_ies_len) {
2949 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2950 new_beacon->assocresp_ies = pos;
2951 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2952 pos += beacon->assocresp_ies_len;
2953 }
2954 if (beacon->probe_resp_len) {
2955 new_beacon->probe_resp_len = beacon->probe_resp_len;
2956 new_beacon->probe_resp = pos;
2957 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2958 pos += beacon->probe_resp_len;
2959 }
2960
2961 /* might copy -1, meaning no changes requested */
2962 new_beacon->ftm_responder = beacon->ftm_responder;
2963 if (beacon->lci) {
2964 new_beacon->lci_len = beacon->lci_len;
2965 new_beacon->lci = pos;
2966 memcpy(pos, beacon->lci, beacon->lci_len);
2967 pos += beacon->lci_len;
2968 }
2969 if (beacon->civicloc) {
2970 new_beacon->civicloc_len = beacon->civicloc_len;
2971 new_beacon->civicloc = pos;
2972 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
2973 pos += beacon->civicloc_len;
2974 }
2975
2976 return new_beacon;
2977 }
2978
2979 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2980 {
2981 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2982
2983 ieee80211_queue_work(&sdata->local->hw,
2984 &sdata->csa_finalize_work);
2985 }
2986 EXPORT_SYMBOL(ieee80211_csa_finish);
2987
2988 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2989 u32 *changed)
2990 {
2991 int err;
2992
2993 switch (sdata->vif.type) {
2994 case NL80211_IFTYPE_AP:
2995 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2996 NULL);
2997 kfree(sdata->u.ap.next_beacon);
2998 sdata->u.ap.next_beacon = NULL;
2999
3000 if (err < 0)
3001 return err;
3002 *changed |= err;
3003 break;
3004 case NL80211_IFTYPE_ADHOC:
3005 err = ieee80211_ibss_finish_csa(sdata);
3006 if (err < 0)
3007 return err;
3008 *changed |= err;
3009 break;
3010 #ifdef CONFIG_MAC80211_MESH
3011 case NL80211_IFTYPE_MESH_POINT:
3012 err = ieee80211_mesh_finish_csa(sdata);
3013 if (err < 0)
3014 return err;
3015 *changed |= err;
3016 break;
3017 #endif
3018 default:
3019 WARN_ON(1);
3020 return -EINVAL;
3021 }
3022
3023 return 0;
3024 }
3025
3026 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3027 {
3028 struct ieee80211_local *local = sdata->local;
3029 u32 changed = 0;
3030 int err;
3031
3032 sdata_assert_lock(sdata);
3033 lockdep_assert_held(&local->mtx);
3034 lockdep_assert_held(&local->chanctx_mtx);
3035
3036 /*
3037 * using reservation isn't immediate as it may be deferred until later
3038 * with multi-vif. once reservation is complete it will re-schedule the
3039 * work with no reserved_chanctx so verify chandef to check if it
3040 * completed successfully
3041 */
3042
3043 if (sdata->reserved_chanctx) {
3044 /*
3045 * with multi-vif csa driver may call ieee80211_csa_finish()
3046 * many times while waiting for other interfaces to use their
3047 * reservations
3048 */
3049 if (sdata->reserved_ready)
3050 return 0;
3051
3052 return ieee80211_vif_use_reserved_context(sdata);
3053 }
3054
3055 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3056 &sdata->csa_chandef))
3057 return -EINVAL;
3058
3059 sdata->vif.csa_active = false;
3060
3061 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3062 if (err)
3063 return err;
3064
3065 ieee80211_bss_info_change_notify(sdata, changed);
3066
3067 if (sdata->csa_block_tx) {
3068 ieee80211_wake_vif_queues(local, sdata,
3069 IEEE80211_QUEUE_STOP_REASON_CSA);
3070 sdata->csa_block_tx = false;
3071 }
3072
3073 err = drv_post_channel_switch(sdata);
3074 if (err)
3075 return err;
3076
3077 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3078
3079 return 0;
3080 }
3081
3082 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3083 {
3084 if (__ieee80211_csa_finalize(sdata)) {
3085 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3086 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3087 GFP_KERNEL);
3088 }
3089 }
3090
3091 void ieee80211_csa_finalize_work(struct work_struct *work)
3092 {
3093 struct ieee80211_sub_if_data *sdata =
3094 container_of(work, struct ieee80211_sub_if_data,
3095 csa_finalize_work);
3096 struct ieee80211_local *local = sdata->local;
3097
3098 sdata_lock(sdata);
3099 mutex_lock(&local->mtx);
3100 mutex_lock(&local->chanctx_mtx);
3101
3102 /* AP might have been stopped while waiting for the lock. */
3103 if (!sdata->vif.csa_active)
3104 goto unlock;
3105
3106 if (!ieee80211_sdata_running(sdata))
3107 goto unlock;
3108
3109 ieee80211_csa_finalize(sdata);
3110
3111 unlock:
3112 mutex_unlock(&local->chanctx_mtx);
3113 mutex_unlock(&local->mtx);
3114 sdata_unlock(sdata);
3115 }
3116
3117 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3118 struct cfg80211_csa_settings *params,
3119 u32 *changed)
3120 {
3121 struct ieee80211_csa_settings csa = {};
3122 int err;
3123
3124 switch (sdata->vif.type) {
3125 case NL80211_IFTYPE_AP:
3126 sdata->u.ap.next_beacon =
3127 cfg80211_beacon_dup(&params->beacon_after);
3128 if (!sdata->u.ap.next_beacon)
3129 return -ENOMEM;
3130
3131 /*
3132 * With a count of 0, we don't have to wait for any
3133 * TBTT before switching, so complete the CSA
3134 * immediately. In theory, with a count == 1 we
3135 * should delay the switch until just before the next
3136 * TBTT, but that would complicate things so we switch
3137 * immediately too. If we would delay the switch
3138 * until the next TBTT, we would have to set the probe
3139 * response here.
3140 *
3141 * TODO: A channel switch with count <= 1 without
3142 * sending a CSA action frame is kind of useless,
3143 * because the clients won't know we're changing
3144 * channels. The action frame must be implemented
3145 * either here or in the userspace.
3146 */
3147 if (params->count <= 1)
3148 break;
3149
3150 if ((params->n_counter_offsets_beacon >
3151 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3152 (params->n_counter_offsets_presp >
3153 IEEE80211_MAX_CSA_COUNTERS_NUM))
3154 return -EINVAL;
3155
3156 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3157 csa.counter_offsets_presp = params->counter_offsets_presp;
3158 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3159 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3160 csa.count = params->count;
3161
3162 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3163 if (err < 0) {
3164 kfree(sdata->u.ap.next_beacon);
3165 return err;
3166 }
3167 *changed |= err;
3168
3169 break;
3170 case NL80211_IFTYPE_ADHOC:
3171 if (!sdata->vif.bss_conf.ibss_joined)
3172 return -EINVAL;
3173
3174 if (params->chandef.width != sdata->u.ibss.chandef.width)
3175 return -EINVAL;
3176
3177 switch (params->chandef.width) {
3178 case NL80211_CHAN_WIDTH_40:
3179 if (cfg80211_get_chandef_type(&params->chandef) !=
3180 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3181 return -EINVAL;
3182 case NL80211_CHAN_WIDTH_5:
3183 case NL80211_CHAN_WIDTH_10:
3184 case NL80211_CHAN_WIDTH_20_NOHT:
3185 case NL80211_CHAN_WIDTH_20:
3186 break;
3187 default:
3188 return -EINVAL;
3189 }
3190
3191 /* changes into another band are not supported */
3192 if (sdata->u.ibss.chandef.chan->band !=
3193 params->chandef.chan->band)
3194 return -EINVAL;
3195
3196 /* see comments in the NL80211_IFTYPE_AP block */
3197 if (params->count > 1) {
3198 err = ieee80211_ibss_csa_beacon(sdata, params);
3199 if (err < 0)
3200 return err;
3201 *changed |= err;
3202 }
3203
3204 ieee80211_send_action_csa(sdata, params);
3205
3206 break;
3207 #ifdef CONFIG_MAC80211_MESH
3208 case NL80211_IFTYPE_MESH_POINT: {
3209 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3210
3211 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3212 return -EINVAL;
3213
3214 /* changes into another band are not supported */
3215 if (sdata->vif.bss_conf.chandef.chan->band !=
3216 params->chandef.chan->band)
3217 return -EINVAL;
3218
3219 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3220 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3221 if (!ifmsh->pre_value)
3222 ifmsh->pre_value = 1;
3223 else
3224 ifmsh->pre_value++;
3225 }
3226
3227 /* see comments in the NL80211_IFTYPE_AP block */
3228 if (params->count > 1) {
3229 err = ieee80211_mesh_csa_beacon(sdata, params);
3230 if (err < 0) {
3231 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3232 return err;
3233 }
3234 *changed |= err;
3235 }
3236
3237 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3238 ieee80211_send_action_csa(sdata, params);
3239
3240 break;
3241 }
3242 #endif
3243 default:
3244 return -EOPNOTSUPP;
3245 }
3246
3247 return 0;
3248 }
3249
3250 static int
3251 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3252 struct cfg80211_csa_settings *params)
3253 {
3254 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3255 struct ieee80211_local *local = sdata->local;
3256 struct ieee80211_channel_switch ch_switch;
3257 struct ieee80211_chanctx_conf *conf;
3258 struct ieee80211_chanctx *chanctx;
3259 u32 changed = 0;
3260 int err;
3261
3262 sdata_assert_lock(sdata);
3263 lockdep_assert_held(&local->mtx);
3264
3265 if (!list_empty(&local->roc_list) || local->scanning)
3266 return -EBUSY;
3267
3268 if (sdata->wdev.cac_started)
3269 return -EBUSY;
3270
3271 if (cfg80211_chandef_identical(&params->chandef,
3272 &sdata->vif.bss_conf.chandef))
3273 return -EINVAL;
3274
3275 /* don't allow another channel switch if one is already active. */
3276 if (sdata->vif.csa_active)
3277 return -EBUSY;
3278
3279 mutex_lock(&local->chanctx_mtx);
3280 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3281 lockdep_is_held(&local->chanctx_mtx));
3282 if (!conf) {
3283 err = -EBUSY;
3284 goto out;
3285 }
3286
3287 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3288
3289 ch_switch.timestamp = 0;
3290 ch_switch.device_timestamp = 0;
3291 ch_switch.block_tx = params->block_tx;
3292 ch_switch.chandef = params->chandef;
3293 ch_switch.count = params->count;
3294
3295 err = drv_pre_channel_switch(sdata, &ch_switch);
3296 if (err)
3297 goto out;
3298
3299 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3300 chanctx->mode,
3301 params->radar_required);
3302 if (err)
3303 goto out;
3304
3305 /* if reservation is invalid then this will fail */
3306 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3307 if (err) {
3308 ieee80211_vif_unreserve_chanctx(sdata);
3309 goto out;
3310 }
3311
3312 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3313 if (err) {
3314 ieee80211_vif_unreserve_chanctx(sdata);
3315 goto out;
3316 }
3317
3318 sdata->csa_chandef = params->chandef;
3319 sdata->csa_block_tx = params->block_tx;
3320 sdata->vif.csa_active = true;
3321
3322 if (sdata->csa_block_tx)
3323 ieee80211_stop_vif_queues(local, sdata,
3324 IEEE80211_QUEUE_STOP_REASON_CSA);
3325
3326 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3327 params->count);
3328
3329 if (changed) {
3330 ieee80211_bss_info_change_notify(sdata, changed);
3331 drv_channel_switch_beacon(sdata, &params->chandef);
3332 } else {
3333 /* if the beacon didn't change, we can finalize immediately */
3334 ieee80211_csa_finalize(sdata);
3335 }
3336
3337 out:
3338 mutex_unlock(&local->chanctx_mtx);
3339 return err;
3340 }
3341
3342 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3343 struct cfg80211_csa_settings *params)
3344 {
3345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3346 struct ieee80211_local *local = sdata->local;
3347 int err;
3348
3349 mutex_lock(&local->mtx);
3350 err = __ieee80211_channel_switch(wiphy, dev, params);
3351 mutex_unlock(&local->mtx);
3352
3353 return err;
3354 }
3355
3356 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3357 {
3358 lockdep_assert_held(&local->mtx);
3359
3360 local->roc_cookie_counter++;
3361
3362 /* wow, you wrapped 64 bits ... more likely a bug */
3363 if (WARN_ON(local->roc_cookie_counter == 0))
3364 local->roc_cookie_counter++;
3365
3366 return local->roc_cookie_counter;
3367 }
3368
3369 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3370 u64 *cookie, gfp_t gfp)
3371 {
3372 unsigned long spin_flags;
3373 struct sk_buff *ack_skb;
3374 int id;
3375
3376 ack_skb = skb_copy(skb, gfp);
3377 if (!ack_skb)
3378 return -ENOMEM;
3379
3380 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3381 id = idr_alloc(&local->ack_status_frames, ack_skb,
3382 1, 0x10000, GFP_ATOMIC);
3383 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3384
3385 if (id < 0) {
3386 kfree_skb(ack_skb);
3387 return -ENOMEM;
3388 }
3389
3390 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3391
3392 *cookie = ieee80211_mgmt_tx_cookie(local);
3393 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3394
3395 return 0;
3396 }
3397
3398 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3399 struct wireless_dev *wdev,
3400 u16 frame_type, bool reg)
3401 {
3402 struct ieee80211_local *local = wiphy_priv(wiphy);
3403 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3404
3405 switch (frame_type) {
3406 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3407 if (reg) {
3408 local->probe_req_reg++;
3409 sdata->vif.probe_req_reg++;
3410 } else {
3411 if (local->probe_req_reg)
3412 local->probe_req_reg--;
3413
3414 if (sdata->vif.probe_req_reg)
3415 sdata->vif.probe_req_reg--;
3416 }
3417
3418 if (!local->open_count)
3419 break;
3420
3421 if (sdata->vif.probe_req_reg == 1)
3422 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3423 FIF_PROBE_REQ);
3424 else if (sdata->vif.probe_req_reg == 0)
3425 drv_config_iface_filter(local, sdata, 0,
3426 FIF_PROBE_REQ);
3427
3428 ieee80211_configure_filter(local);
3429 break;
3430 default:
3431 break;
3432 }
3433 }
3434
3435 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3436 {
3437 struct ieee80211_local *local = wiphy_priv(wiphy);
3438
3439 if (local->started)
3440 return -EOPNOTSUPP;
3441
3442 return drv_set_antenna(local, tx_ant, rx_ant);
3443 }
3444
3445 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3446 {
3447 struct ieee80211_local *local = wiphy_priv(wiphy);
3448
3449 return drv_get_antenna(local, tx_ant, rx_ant);
3450 }
3451
3452 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3453 struct net_device *dev,
3454 struct cfg80211_gtk_rekey_data *data)
3455 {
3456 struct ieee80211_local *local = wiphy_priv(wiphy);
3457 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3458
3459 if (!local->ops->set_rekey_data)
3460 return -EOPNOTSUPP;
3461
3462 drv_set_rekey_data(local, sdata, data);
3463
3464 return 0;
3465 }
3466
3467 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3468 const u8 *peer, u64 *cookie)
3469 {
3470 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3471 struct ieee80211_local *local = sdata->local;
3472 struct ieee80211_qos_hdr *nullfunc;
3473 struct sk_buff *skb;
3474 int size = sizeof(*nullfunc);
3475 __le16 fc;
3476 bool qos;
3477 struct ieee80211_tx_info *info;
3478 struct sta_info *sta;
3479 struct ieee80211_chanctx_conf *chanctx_conf;
3480 enum nl80211_band band;
3481 int ret;
3482
3483 /* the lock is needed to assign the cookie later */
3484 mutex_lock(&local->mtx);
3485
3486 rcu_read_lock();
3487 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3488 if (WARN_ON(!chanctx_conf)) {
3489 ret = -EINVAL;
3490 goto unlock;
3491 }
3492 band = chanctx_conf->def.chan->band;
3493 sta = sta_info_get_bss(sdata, peer);
3494 if (sta) {
3495 qos = sta->sta.wme;
3496 } else {
3497 ret = -ENOLINK;
3498 goto unlock;
3499 }
3500
3501 if (qos) {
3502 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3503 IEEE80211_STYPE_QOS_NULLFUNC |
3504 IEEE80211_FCTL_FROMDS);
3505 } else {
3506 size -= 2;
3507 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3508 IEEE80211_STYPE_NULLFUNC |
3509 IEEE80211_FCTL_FROMDS);
3510 }
3511
3512 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3513 if (!skb) {
3514 ret = -ENOMEM;
3515 goto unlock;
3516 }
3517
3518 skb->dev = dev;
3519
3520 skb_reserve(skb, local->hw.extra_tx_headroom);
3521
3522 nullfunc = skb_put(skb, size);
3523 nullfunc->frame_control = fc;
3524 nullfunc->duration_id = 0;
3525 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3526 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3527 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3528 nullfunc->seq_ctrl = 0;
3529
3530 info = IEEE80211_SKB_CB(skb);
3531
3532 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3533 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3534 info->band = band;
3535
3536 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3537 skb->priority = 7;
3538 if (qos)
3539 nullfunc->qos_ctrl = cpu_to_le16(7);
3540
3541 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3542 if (ret) {
3543 kfree_skb(skb);
3544 goto unlock;
3545 }
3546
3547 local_bh_disable();
3548 ieee80211_xmit(sdata, sta, skb, 0);
3549 local_bh_enable();
3550
3551 ret = 0;
3552 unlock:
3553 rcu_read_unlock();
3554 mutex_unlock(&local->mtx);
3555
3556 return ret;
3557 }
3558
3559 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3560 struct wireless_dev *wdev,
3561 struct cfg80211_chan_def *chandef)
3562 {
3563 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3564 struct ieee80211_local *local = wiphy_priv(wiphy);
3565 struct ieee80211_chanctx_conf *chanctx_conf;
3566 int ret = -ENODATA;
3567
3568 rcu_read_lock();
3569 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3570 if (chanctx_conf) {
3571 *chandef = sdata->vif.bss_conf.chandef;
3572 ret = 0;
3573 } else if (local->open_count > 0 &&
3574 local->open_count == local->monitors &&
3575 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3576 if (local->use_chanctx)
3577 *chandef = local->monitor_chandef;
3578 else
3579 *chandef = local->_oper_chandef;
3580 ret = 0;
3581 }
3582 rcu_read_unlock();
3583
3584 return ret;
3585 }
3586
3587 #ifdef CONFIG_PM
3588 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3589 {
3590 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3591 }
3592 #endif
3593
3594 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3595 struct net_device *dev,
3596 struct cfg80211_qos_map *qos_map)
3597 {
3598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3599 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3600
3601 if (qos_map) {
3602 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3603 if (!new_qos_map)
3604 return -ENOMEM;
3605 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3606 } else {
3607 /* A NULL qos_map was passed to disable QoS mapping */
3608 new_qos_map = NULL;
3609 }
3610
3611 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3612 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3613 if (old_qos_map)
3614 kfree_rcu(old_qos_map, rcu_head);
3615
3616 return 0;
3617 }
3618
3619 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3620 struct net_device *dev,
3621 struct cfg80211_chan_def *chandef)
3622 {
3623 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3624 int ret;
3625 u32 changed = 0;
3626
3627 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3628 if (ret == 0)
3629 ieee80211_bss_info_change_notify(sdata, changed);
3630
3631 return ret;
3632 }
3633
3634 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3635 u8 tsid, const u8 *peer, u8 up,
3636 u16 admitted_time)
3637 {
3638 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3639 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3640 int ac = ieee802_1d_to_ac[up];
3641
3642 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3643 return -EOPNOTSUPP;
3644
3645 if (!(sdata->wmm_acm & BIT(up)))
3646 return -EINVAL;
3647
3648 if (ifmgd->tx_tspec[ac].admitted_time)
3649 return -EBUSY;
3650
3651 if (admitted_time) {
3652 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3653 ifmgd->tx_tspec[ac].tsid = tsid;
3654 ifmgd->tx_tspec[ac].up = up;
3655 }
3656
3657 return 0;
3658 }
3659
3660 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3661 u8 tsid, const u8 *peer)
3662 {
3663 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3664 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3665 struct ieee80211_local *local = wiphy_priv(wiphy);
3666 int ac;
3667
3668 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3669 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3670
3671 /* skip unused entries */
3672 if (!tx_tspec->admitted_time)
3673 continue;
3674
3675 if (tx_tspec->tsid != tsid)
3676 continue;
3677
3678 /* due to this new packets will be reassigned to non-ACM ACs */
3679 tx_tspec->up = -1;
3680
3681 /* Make sure that all packets have been sent to avoid to
3682 * restore the QoS params on packets that are still on the
3683 * queues.
3684 */
3685 synchronize_net();
3686 ieee80211_flush_queues(local, sdata, false);
3687
3688 /* restore the normal QoS parameters
3689 * (unconditionally to avoid races)
3690 */
3691 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3692 tx_tspec->downgraded = false;
3693 ieee80211_sta_handle_tspec_ac_params(sdata);
3694
3695 /* finally clear all the data */
3696 memset(tx_tspec, 0, sizeof(*tx_tspec));
3697
3698 return 0;
3699 }
3700
3701 return -ENOENT;
3702 }
3703
3704 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3705 u8 inst_id,
3706 enum nl80211_nan_func_term_reason reason,
3707 gfp_t gfp)
3708 {
3709 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3710 struct cfg80211_nan_func *func;
3711 u64 cookie;
3712
3713 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3714 return;
3715
3716 spin_lock_bh(&sdata->u.nan.func_lock);
3717
3718 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3719 if (WARN_ON(!func)) {
3720 spin_unlock_bh(&sdata->u.nan.func_lock);
3721 return;
3722 }
3723
3724 cookie = func->cookie;
3725 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3726
3727 spin_unlock_bh(&sdata->u.nan.func_lock);
3728
3729 cfg80211_free_nan_func(func);
3730
3731 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3732 reason, cookie, gfp);
3733 }
3734 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3735
3736 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3737 struct cfg80211_nan_match_params *match,
3738 gfp_t gfp)
3739 {
3740 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3741 struct cfg80211_nan_func *func;
3742
3743 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3744 return;
3745
3746 spin_lock_bh(&sdata->u.nan.func_lock);
3747
3748 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3749 if (WARN_ON(!func)) {
3750 spin_unlock_bh(&sdata->u.nan.func_lock);
3751 return;
3752 }
3753 match->cookie = func->cookie;
3754
3755 spin_unlock_bh(&sdata->u.nan.func_lock);
3756
3757 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3758 }
3759 EXPORT_SYMBOL(ieee80211_nan_func_match);
3760
3761 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3762 struct net_device *dev,
3763 const bool enabled)
3764 {
3765 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3766
3767 sdata->u.ap.multicast_to_unicast = enabled;
3768
3769 return 0;
3770 }
3771
3772 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3773 struct txq_info *txqi)
3774 {
3775 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3776 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3777 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3778 }
3779
3780 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3781 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3782 txqstats->backlog_packets = txqi->tin.backlog_packets;
3783 }
3784
3785 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3786 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3787 txqstats->flows = txqi->tin.flows;
3788 }
3789
3790 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3791 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3792 txqstats->drops = txqi->cstats.drop_count;
3793 }
3794
3795 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3796 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3797 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3798 }
3799
3800 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3801 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3802 txqstats->overlimit = txqi->tin.overlimit;
3803 }
3804
3805 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3806 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3807 txqstats->collisions = txqi->tin.collisions;
3808 }
3809
3810 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3811 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3812 txqstats->tx_bytes = txqi->tin.tx_bytes;
3813 }
3814
3815 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3816 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3817 txqstats->tx_packets = txqi->tin.tx_packets;
3818 }
3819 }
3820
3821 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3822 struct wireless_dev *wdev,
3823 struct cfg80211_txq_stats *txqstats)
3824 {
3825 struct ieee80211_local *local = wiphy_priv(wiphy);
3826 struct ieee80211_sub_if_data *sdata;
3827 int ret = 0;
3828
3829 if (!local->ops->wake_tx_queue)
3830 return 1;
3831
3832 spin_lock_bh(&local->fq.lock);
3833 rcu_read_lock();
3834
3835 if (wdev) {
3836 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3837 if (!sdata->vif.txq) {
3838 ret = 1;
3839 goto out;
3840 }
3841 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3842 } else {
3843 /* phy stats */
3844 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3845 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3846 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3847 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3848 BIT(NL80211_TXQ_STATS_COLLISIONS) |
3849 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3850 txqstats->backlog_packets = local->fq.backlog;
3851 txqstats->backlog_bytes = local->fq.memory_usage;
3852 txqstats->overlimit = local->fq.overlimit;
3853 txqstats->overmemory = local->fq.overmemory;
3854 txqstats->collisions = local->fq.collisions;
3855 txqstats->max_flows = local->fq.flows_cnt;
3856 }
3857
3858 out:
3859 rcu_read_unlock();
3860 spin_unlock_bh(&local->fq.lock);
3861
3862 return ret;
3863 }
3864
3865 static int
3866 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3867 struct net_device *dev,
3868 struct cfg80211_ftm_responder_stats *ftm_stats)
3869 {
3870 struct ieee80211_local *local = wiphy_priv(wiphy);
3871 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3872
3873 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
3874 }
3875
3876 static int
3877 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3878 struct cfg80211_pmsr_request *request)
3879 {
3880 struct ieee80211_local *local = wiphy_priv(wiphy);
3881 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3882
3883 return drv_start_pmsr(local, sdata, request);
3884 }
3885
3886 static void
3887 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3888 struct cfg80211_pmsr_request *request)
3889 {
3890 struct ieee80211_local *local = wiphy_priv(wiphy);
3891 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3892
3893 return drv_abort_pmsr(local, sdata, request);
3894 }
3895
3896 const struct cfg80211_ops mac80211_config_ops = {
3897 .add_virtual_intf = ieee80211_add_iface,
3898 .del_virtual_intf = ieee80211_del_iface,
3899 .change_virtual_intf = ieee80211_change_iface,
3900 .start_p2p_device = ieee80211_start_p2p_device,
3901 .stop_p2p_device = ieee80211_stop_p2p_device,
3902 .add_key = ieee80211_add_key,
3903 .del_key = ieee80211_del_key,
3904 .get_key = ieee80211_get_key,
3905 .set_default_key = ieee80211_config_default_key,
3906 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3907 .start_ap = ieee80211_start_ap,
3908 .change_beacon = ieee80211_change_beacon,
3909 .stop_ap = ieee80211_stop_ap,
3910 .add_station = ieee80211_add_station,
3911 .del_station = ieee80211_del_station,
3912 .change_station = ieee80211_change_station,
3913 .get_station = ieee80211_get_station,
3914 .dump_station = ieee80211_dump_station,
3915 .dump_survey = ieee80211_dump_survey,
3916 #ifdef CONFIG_MAC80211_MESH
3917 .add_mpath = ieee80211_add_mpath,
3918 .del_mpath = ieee80211_del_mpath,
3919 .change_mpath = ieee80211_change_mpath,
3920 .get_mpath = ieee80211_get_mpath,
3921 .dump_mpath = ieee80211_dump_mpath,
3922 .get_mpp = ieee80211_get_mpp,
3923 .dump_mpp = ieee80211_dump_mpp,
3924 .update_mesh_config = ieee80211_update_mesh_config,
3925 .get_mesh_config = ieee80211_get_mesh_config,
3926 .join_mesh = ieee80211_join_mesh,
3927 .leave_mesh = ieee80211_leave_mesh,
3928 #endif
3929 .join_ocb = ieee80211_join_ocb,
3930 .leave_ocb = ieee80211_leave_ocb,
3931 .change_bss = ieee80211_change_bss,
3932 .set_txq_params = ieee80211_set_txq_params,
3933 .set_monitor_channel = ieee80211_set_monitor_channel,
3934 .suspend = ieee80211_suspend,
3935 .resume = ieee80211_resume,
3936 .scan = ieee80211_scan,
3937 .abort_scan = ieee80211_abort_scan,
3938 .sched_scan_start = ieee80211_sched_scan_start,
3939 .sched_scan_stop = ieee80211_sched_scan_stop,
3940 .auth = ieee80211_auth,
3941 .assoc = ieee80211_assoc,
3942 .deauth = ieee80211_deauth,
3943 .disassoc = ieee80211_disassoc,
3944 .join_ibss = ieee80211_join_ibss,
3945 .leave_ibss = ieee80211_leave_ibss,
3946 .set_mcast_rate = ieee80211_set_mcast_rate,
3947 .set_wiphy_params = ieee80211_set_wiphy_params,
3948 .set_tx_power = ieee80211_set_tx_power,
3949 .get_tx_power = ieee80211_get_tx_power,
3950 .set_wds_peer = ieee80211_set_wds_peer,
3951 .rfkill_poll = ieee80211_rfkill_poll,
3952 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3953 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3954 .set_power_mgmt = ieee80211_set_power_mgmt,
3955 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3956 .remain_on_channel = ieee80211_remain_on_channel,
3957 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3958 .mgmt_tx = ieee80211_mgmt_tx,
3959 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3960 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3961 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
3962 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3963 .set_antenna = ieee80211_set_antenna,
3964 .get_antenna = ieee80211_get_antenna,
3965 .set_rekey_data = ieee80211_set_rekey_data,
3966 .tdls_oper = ieee80211_tdls_oper,
3967 .tdls_mgmt = ieee80211_tdls_mgmt,
3968 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3969 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3970 .probe_client = ieee80211_probe_client,
3971 .set_noack_map = ieee80211_set_noack_map,
3972 #ifdef CONFIG_PM
3973 .set_wakeup = ieee80211_set_wakeup,
3974 #endif
3975 .get_channel = ieee80211_cfg_get_channel,
3976 .start_radar_detection = ieee80211_start_radar_detection,
3977 .channel_switch = ieee80211_channel_switch,
3978 .set_qos_map = ieee80211_set_qos_map,
3979 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3980 .add_tx_ts = ieee80211_add_tx_ts,
3981 .del_tx_ts = ieee80211_del_tx_ts,
3982 .start_nan = ieee80211_start_nan,
3983 .stop_nan = ieee80211_stop_nan,
3984 .nan_change_conf = ieee80211_nan_change_conf,
3985 .add_nan_func = ieee80211_add_nan_func,
3986 .del_nan_func = ieee80211_del_nan_func,
3987 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
3988 .tx_control_port = ieee80211_tx_control_port,
3989 .get_txq_stats = ieee80211_get_txq_stats,
3990 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
3991 .start_pmsr = ieee80211_start_pmsr,
3992 .abort_pmsr = ieee80211_abort_pmsr,
3993 };
Linux with added FPC-III support