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nvmem: core: add locking to nvmem_find_cell
[linux/fpc-iii.git] / net / mac80211 / cfg.c
blob6c2e6060cd549e3c4c39e78cc20ca9302472c4ac
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 *
8 * This file is GPLv2 as found in COPYING.
9 */
10
11 #include <linux/ieee80211.h>
12 #include <linux/nl80211.h>
13 #include <linux/rtnetlink.h>
14 #include <linux/slab.h>
15 #include <net/net_namespace.h>
16 #include <linux/rcupdate.h>
17 #include <linux/if_ether.h>
18 #include <net/cfg80211.h>
19 #include "ieee80211_i.h"
20 #include "driver-ops.h"
21 #include "rate.h"
22 #include "mesh.h"
23 #include "wme.h"
24
25 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
26 struct vif_params *params)
27 {
28 bool mu_mimo_groups = false;
29 bool mu_mimo_follow = false;
30
31 if (params->vht_mumimo_groups) {
32 u64 membership;
33
34 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
35
36 memcpy(sdata->vif.bss_conf.mu_group.membership,
37 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
38 memcpy(sdata->vif.bss_conf.mu_group.position,
39 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
40 WLAN_USER_POSITION_LEN);
41 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
42 /* don't care about endianness - just check for 0 */
43 memcpy(&membership, params->vht_mumimo_groups,
44 WLAN_MEMBERSHIP_LEN);
45 mu_mimo_groups = membership != 0;
46 }
47
48 if (params->vht_mumimo_follow_addr) {
49 mu_mimo_follow =
50 is_valid_ether_addr(params->vht_mumimo_follow_addr);
51 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
52 params->vht_mumimo_follow_addr);
53 }
54
55 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
56 }
57
58 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
59 struct vif_params *params)
60 {
61 struct ieee80211_local *local = sdata->local;
62 struct ieee80211_sub_if_data *monitor_sdata;
63
64 /* check flags first */
65 if (params->flags && ieee80211_sdata_running(sdata)) {
66 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
67
68 /*
69 * Prohibit MONITOR_FLAG_COOK_FRAMES and
70 * MONITOR_FLAG_ACTIVE to be changed while the
71 * interface is up.
72 * Else we would need to add a lot of cruft
73 * to update everything:
74 * cooked_mntrs, monitor and all fif_* counters
75 * reconfigure hardware
76 */
77 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
78 return -EBUSY;
79 }
80
81 /* also validate MU-MIMO change */
82 monitor_sdata = rtnl_dereference(local->monitor_sdata);
83
84 if (!monitor_sdata &&
85 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
86 return -EOPNOTSUPP;
87
88 /* apply all changes now - no failures allowed */
89
90 if (monitor_sdata)
91 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
92
93 if (params->flags) {
94 if (ieee80211_sdata_running(sdata)) {
95 ieee80211_adjust_monitor_flags(sdata, -1);
96 sdata->u.mntr.flags = params->flags;
97 ieee80211_adjust_monitor_flags(sdata, 1);
98
99 ieee80211_configure_filter(local);
100 } else {
101 /*
102 * Because the interface is down, ieee80211_do_stop
103 * and ieee80211_do_open take care of "everything"
104 * mentioned in the comment above.
105 */
106 sdata->u.mntr.flags = params->flags;
107 }
108 }
109
110 return 0;
111 }
112
113 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
114 const char *name,
115 unsigned char name_assign_type,
116 enum nl80211_iftype type,
117 struct vif_params *params)
118 {
119 struct ieee80211_local *local = wiphy_priv(wiphy);
120 struct wireless_dev *wdev;
121 struct ieee80211_sub_if_data *sdata;
122 int err;
123
124 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
125 if (err)
126 return ERR_PTR(err);
127
128 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
129
130 if (type == NL80211_IFTYPE_MONITOR) {
131 err = ieee80211_set_mon_options(sdata, params);
132 if (err) {
133 ieee80211_if_remove(sdata);
134 return NULL;
135 }
136 }
137
138 return wdev;
139 }
140
141 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
142 {
143 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
144
145 return 0;
146 }
147
148 static int ieee80211_change_iface(struct wiphy *wiphy,
149 struct net_device *dev,
150 enum nl80211_iftype type,
151 struct vif_params *params)
152 {
153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
154 int ret;
155
156 ret = ieee80211_if_change_type(sdata, type);
157 if (ret)
158 return ret;
159
160 if (type == NL80211_IFTYPE_AP_VLAN &&
161 params && 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 &&
165 params && params->use_4addr >= 0) {
166 sdata->u.mgd.use_4addr = params->use_4addr;
167 }
168
169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
170 ret = ieee80211_set_mon_options(sdata, params);
171 if (ret)
172 return ret;
173 }
174
175 return 0;
176 }
177
178 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
179 struct wireless_dev *wdev)
180 {
181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
182 int ret;
183
184 mutex_lock(&sdata->local->chanctx_mtx);
185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
186 mutex_unlock(&sdata->local->chanctx_mtx);
187 if (ret < 0)
188 return ret;
189
190 return ieee80211_do_open(wdev, true);
191 }
192
193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
194 struct wireless_dev *wdev)
195 {
196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
197 }
198
199 static int ieee80211_start_nan(struct wiphy *wiphy,
200 struct wireless_dev *wdev,
201 struct cfg80211_nan_conf *conf)
202 {
203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
204 int ret;
205
206 mutex_lock(&sdata->local->chanctx_mtx);
207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
208 mutex_unlock(&sdata->local->chanctx_mtx);
209 if (ret < 0)
210 return ret;
211
212 ret = ieee80211_do_open(wdev, true);
213 if (ret)
214 return ret;
215
216 ret = drv_start_nan(sdata->local, sdata, conf);
217 if (ret)
218 ieee80211_sdata_stop(sdata);
219
220 sdata->u.nan.conf = *conf;
221
222 return ret;
223 }
224
225 static void ieee80211_stop_nan(struct wiphy *wiphy,
226 struct wireless_dev *wdev)
227 {
228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
229
230 drv_stop_nan(sdata->local, sdata);
231 ieee80211_sdata_stop(sdata);
232 }
233
234 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
235 struct wireless_dev *wdev,
236 struct cfg80211_nan_conf *conf,
237 u32 changes)
238 {
239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
240 struct cfg80211_nan_conf new_conf;
241 int ret = 0;
242
243 if (sdata->vif.type != NL80211_IFTYPE_NAN)
244 return -EOPNOTSUPP;
245
246 if (!ieee80211_sdata_running(sdata))
247 return -ENETDOWN;
248
249 new_conf = sdata->u.nan.conf;
250
251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
252 new_conf.master_pref = conf->master_pref;
253
254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
255 new_conf.bands = conf->bands;
256
257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
258 if (!ret)
259 sdata->u.nan.conf = new_conf;
260
261 return ret;
262 }
263
264 static int ieee80211_add_nan_func(struct wiphy *wiphy,
265 struct wireless_dev *wdev,
266 struct cfg80211_nan_func *nan_func)
267 {
268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
269 int ret;
270
271 if (sdata->vif.type != NL80211_IFTYPE_NAN)
272 return -EOPNOTSUPP;
273
274 if (!ieee80211_sdata_running(sdata))
275 return -ENETDOWN;
276
277 spin_lock_bh(&sdata->u.nan.func_lock);
278
279 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
281 GFP_ATOMIC);
282 spin_unlock_bh(&sdata->u.nan.func_lock);
283
284 if (ret < 0)
285 return ret;
286
287 nan_func->instance_id = ret;
288
289 WARN_ON(nan_func->instance_id == 0);
290
291 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
292 if (ret) {
293 spin_lock_bh(&sdata->u.nan.func_lock);
294 idr_remove(&sdata->u.nan.function_inst_ids,
295 nan_func->instance_id);
296 spin_unlock_bh(&sdata->u.nan.func_lock);
297 }
298
299 return ret;
300 }
301
302 static struct cfg80211_nan_func *
303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
304 u64 cookie)
305 {
306 struct cfg80211_nan_func *func;
307 int id;
308
309 lockdep_assert_held(&sdata->u.nan.func_lock);
310
311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
312 if (func->cookie == cookie)
313 return func;
314 }
315
316 return NULL;
317 }
318
319 static void ieee80211_del_nan_func(struct wiphy *wiphy,
320 struct wireless_dev *wdev, u64 cookie)
321 {
322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
323 struct cfg80211_nan_func *func;
324 u8 instance_id = 0;
325
326 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
327 !ieee80211_sdata_running(sdata))
328 return;
329
330 spin_lock_bh(&sdata->u.nan.func_lock);
331
332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
333 if (func)
334 instance_id = func->instance_id;
335
336 spin_unlock_bh(&sdata->u.nan.func_lock);
337
338 if (instance_id)
339 drv_del_nan_func(sdata->local, sdata, instance_id);
340 }
341
342 static int ieee80211_set_noack_map(struct wiphy *wiphy,
343 struct net_device *dev,
344 u16 noack_map)
345 {
346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
347
348 sdata->noack_map = noack_map;
349
350 ieee80211_check_fast_xmit_iface(sdata);
351
352 return 0;
353 }
354
355 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
356 u8 key_idx, bool pairwise, const u8 *mac_addr,
357 struct key_params *params)
358 {
359 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
360 struct ieee80211_local *local = sdata->local;
361 struct sta_info *sta = NULL;
362 const struct ieee80211_cipher_scheme *cs = NULL;
363 struct ieee80211_key *key;
364 int err;
365
366 if (!ieee80211_sdata_running(sdata))
367 return -ENETDOWN;
368
369 /* reject WEP and TKIP keys if WEP failed to initialize */
370 switch (params->cipher) {
371 case WLAN_CIPHER_SUITE_WEP40:
372 case WLAN_CIPHER_SUITE_TKIP:
373 case WLAN_CIPHER_SUITE_WEP104:
374 if (IS_ERR(local->wep_tx_tfm))
375 return -EINVAL;
376 break;
377 case WLAN_CIPHER_SUITE_CCMP:
378 case WLAN_CIPHER_SUITE_CCMP_256:
379 case WLAN_CIPHER_SUITE_AES_CMAC:
380 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
381 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
382 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
383 case WLAN_CIPHER_SUITE_GCMP:
384 case WLAN_CIPHER_SUITE_GCMP_256:
385 break;
386 default:
387 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
388 break;
389 }
390
391 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
392 params->key, params->seq_len, params->seq,
393 cs);
394 if (IS_ERR(key))
395 return PTR_ERR(key);
396
397 if (pairwise)
398 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
399
400 mutex_lock(&local->sta_mtx);
401
402 if (mac_addr) {
403 sta = sta_info_get_bss(sdata, mac_addr);
404 /*
405 * The ASSOC test makes sure the driver is ready to
406 * receive the key. When wpa_supplicant has roamed
407 * using FT, it attempts to set the key before
408 * association has completed, this rejects that attempt
409 * so it will set the key again after association.
410 *
411 * TODO: accept the key if we have a station entry and
412 * add it to the device after the station.
413 */
414 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
415 ieee80211_key_free_unused(key);
416 err = -ENOENT;
417 goto out_unlock;
418 }
419 }
420
421 switch (sdata->vif.type) {
422 case NL80211_IFTYPE_STATION:
423 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
424 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
425 break;
426 case NL80211_IFTYPE_AP:
427 case NL80211_IFTYPE_AP_VLAN:
428 /* Keys without a station are used for TX only */
429 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
430 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
431 break;
432 case NL80211_IFTYPE_ADHOC:
433 /* no MFP (yet) */
434 break;
435 case NL80211_IFTYPE_MESH_POINT:
436 #ifdef CONFIG_MAC80211_MESH
437 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
438 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
439 break;
440 #endif
441 case NL80211_IFTYPE_WDS:
442 case NL80211_IFTYPE_MONITOR:
443 case NL80211_IFTYPE_P2P_DEVICE:
444 case NL80211_IFTYPE_NAN:
445 case NL80211_IFTYPE_UNSPECIFIED:
446 case NUM_NL80211_IFTYPES:
447 case NL80211_IFTYPE_P2P_CLIENT:
448 case NL80211_IFTYPE_P2P_GO:
449 case NL80211_IFTYPE_OCB:
450 /* shouldn't happen */
451 WARN_ON_ONCE(1);
452 break;
453 }
454
455 if (sta)
456 sta->cipher_scheme = cs;
457
458 err = ieee80211_key_link(key, sdata, sta);
459
460 out_unlock:
461 mutex_unlock(&local->sta_mtx);
462
463 return err;
464 }
465
466 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
467 u8 key_idx, bool pairwise, const u8 *mac_addr)
468 {
469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
470 struct ieee80211_local *local = sdata->local;
471 struct sta_info *sta;
472 struct ieee80211_key *key = NULL;
473 int ret;
474
475 mutex_lock(&local->sta_mtx);
476 mutex_lock(&local->key_mtx);
477
478 if (mac_addr) {
479 ret = -ENOENT;
480
481 sta = sta_info_get_bss(sdata, mac_addr);
482 if (!sta)
483 goto out_unlock;
484
485 if (pairwise)
486 key = key_mtx_dereference(local, sta->ptk[key_idx]);
487 else
488 key = key_mtx_dereference(local, sta->gtk[key_idx]);
489 } else
490 key = key_mtx_dereference(local, sdata->keys[key_idx]);
491
492 if (!key) {
493 ret = -ENOENT;
494 goto out_unlock;
495 }
496
497 ieee80211_key_free(key, true);
498
499 ret = 0;
500 out_unlock:
501 mutex_unlock(&local->key_mtx);
502 mutex_unlock(&local->sta_mtx);
503
504 return ret;
505 }
506
507 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
508 u8 key_idx, bool pairwise, const u8 *mac_addr,
509 void *cookie,
510 void (*callback)(void *cookie,
511 struct key_params *params))
512 {
513 struct ieee80211_sub_if_data *sdata;
514 struct sta_info *sta = NULL;
515 u8 seq[6] = {0};
516 struct key_params params;
517 struct ieee80211_key *key = NULL;
518 u64 pn64;
519 u32 iv32;
520 u16 iv16;
521 int err = -ENOENT;
522 struct ieee80211_key_seq kseq = {};
523
524 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
525
526 rcu_read_lock();
527
528 if (mac_addr) {
529 sta = sta_info_get_bss(sdata, mac_addr);
530 if (!sta)
531 goto out;
532
533 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
534 key = rcu_dereference(sta->ptk[key_idx]);
535 else if (!pairwise &&
536 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
537 key = rcu_dereference(sta->gtk[key_idx]);
538 } else
539 key = rcu_dereference(sdata->keys[key_idx]);
540
541 if (!key)
542 goto out;
543
544 memset(&params, 0, sizeof(params));
545
546 params.cipher = key->conf.cipher;
547
548 switch (key->conf.cipher) {
549 case WLAN_CIPHER_SUITE_TKIP:
550 pn64 = atomic64_read(&key->conf.tx_pn);
551 iv32 = TKIP_PN_TO_IV32(pn64);
552 iv16 = TKIP_PN_TO_IV16(pn64);
553
554 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
555 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
556 drv_get_key_seq(sdata->local, key, &kseq);
557 iv32 = kseq.tkip.iv32;
558 iv16 = kseq.tkip.iv16;
559 }
560
561 seq[0] = iv16 & 0xff;
562 seq[1] = (iv16 >> 8) & 0xff;
563 seq[2] = iv32 & 0xff;
564 seq[3] = (iv32 >> 8) & 0xff;
565 seq[4] = (iv32 >> 16) & 0xff;
566 seq[5] = (iv32 >> 24) & 0xff;
567 params.seq = seq;
568 params.seq_len = 6;
569 break;
570 case WLAN_CIPHER_SUITE_CCMP:
571 case WLAN_CIPHER_SUITE_CCMP_256:
572 case WLAN_CIPHER_SUITE_AES_CMAC:
573 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
574 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
575 offsetof(typeof(kseq), aes_cmac));
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 case WLAN_CIPHER_SUITE_GCMP:
581 case WLAN_CIPHER_SUITE_GCMP_256:
582 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
583 offsetof(typeof(kseq), gcmp));
584
585 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
586 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
587 drv_get_key_seq(sdata->local, key, &kseq);
588 memcpy(seq, kseq.ccmp.pn, 6);
589 } else {
590 pn64 = atomic64_read(&key->conf.tx_pn);
591 seq[0] = pn64;
592 seq[1] = pn64 >> 8;
593 seq[2] = pn64 >> 16;
594 seq[3] = pn64 >> 24;
595 seq[4] = pn64 >> 32;
596 seq[5] = pn64 >> 40;
597 }
598 params.seq = seq;
599 params.seq_len = 6;
600 break;
601 default:
602 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
603 break;
604 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
605 break;
606 drv_get_key_seq(sdata->local, key, &kseq);
607 params.seq = kseq.hw.seq;
608 params.seq_len = kseq.hw.seq_len;
609 break;
610 }
611
612 params.key = key->conf.key;
613 params.key_len = key->conf.keylen;
614
615 callback(cookie, &params);
616 err = 0;
617
618 out:
619 rcu_read_unlock();
620 return err;
621 }
622
623 static int ieee80211_config_default_key(struct wiphy *wiphy,
624 struct net_device *dev,
625 u8 key_idx, bool uni,
626 bool multi)
627 {
628 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
629
630 ieee80211_set_default_key(sdata, key_idx, uni, multi);
631
632 return 0;
633 }
634
635 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
636 struct net_device *dev,
637 u8 key_idx)
638 {
639 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
640
641 ieee80211_set_default_mgmt_key(sdata, key_idx);
642
643 return 0;
644 }
645
646 void sta_set_rate_info_tx(struct sta_info *sta,
647 const struct ieee80211_tx_rate *rate,
648 struct rate_info *rinfo)
649 {
650 rinfo->flags = 0;
651 if (rate->flags & IEEE80211_TX_RC_MCS) {
652 rinfo->flags |= RATE_INFO_FLAGS_MCS;
653 rinfo->mcs = rate->idx;
654 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
655 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
656 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
657 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
658 } else {
659 struct ieee80211_supported_band *sband;
660 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
661 u16 brate;
662
663 sband = ieee80211_get_sband(sta->sdata);
664 if (sband) {
665 brate = sband->bitrates[rate->idx].bitrate;
666 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
667 }
668 }
669 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
670 rinfo->bw = RATE_INFO_BW_40;
671 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
672 rinfo->bw = RATE_INFO_BW_80;
673 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
674 rinfo->bw = RATE_INFO_BW_160;
675 else
676 rinfo->bw = RATE_INFO_BW_20;
677 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
678 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
679 }
680
681 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
682 int idx, u8 *mac, struct station_info *sinfo)
683 {
684 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
685 struct ieee80211_local *local = sdata->local;
686 struct sta_info *sta;
687 int ret = -ENOENT;
688
689 mutex_lock(&local->sta_mtx);
690
691 sta = sta_info_get_by_idx(sdata, idx);
692 if (sta) {
693 ret = 0;
694 memcpy(mac, sta->sta.addr, ETH_ALEN);
695 sta_set_sinfo(sta, sinfo);
696 }
697
698 mutex_unlock(&local->sta_mtx);
699
700 return ret;
701 }
702
703 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
704 int idx, struct survey_info *survey)
705 {
706 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
707
708 return drv_get_survey(local, idx, survey);
709 }
710
711 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
712 const u8 *mac, struct station_info *sinfo)
713 {
714 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
715 struct ieee80211_local *local = sdata->local;
716 struct sta_info *sta;
717 int ret = -ENOENT;
718
719 mutex_lock(&local->sta_mtx);
720
721 sta = sta_info_get_bss(sdata, mac);
722 if (sta) {
723 ret = 0;
724 sta_set_sinfo(sta, sinfo);
725 }
726
727 mutex_unlock(&local->sta_mtx);
728
729 return ret;
730 }
731
732 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
733 struct cfg80211_chan_def *chandef)
734 {
735 struct ieee80211_local *local = wiphy_priv(wiphy);
736 struct ieee80211_sub_if_data *sdata;
737 int ret = 0;
738
739 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
740 return 0;
741
742 mutex_lock(&local->mtx);
743 if (local->use_chanctx) {
744 sdata = rtnl_dereference(local->monitor_sdata);
745 if (sdata) {
746 ieee80211_vif_release_channel(sdata);
747 ret = ieee80211_vif_use_channel(sdata, chandef,
748 IEEE80211_CHANCTX_EXCLUSIVE);
749 }
750 } else if (local->open_count == local->monitors) {
751 local->_oper_chandef = *chandef;
752 ieee80211_hw_config(local, 0);
753 }
754
755 if (ret == 0)
756 local->monitor_chandef = *chandef;
757 mutex_unlock(&local->mtx);
758
759 return ret;
760 }
761
762 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
763 const u8 *resp, size_t resp_len,
764 const struct ieee80211_csa_settings *csa)
765 {
766 struct probe_resp *new, *old;
767
768 if (!resp || !resp_len)
769 return 1;
770
771 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
772
773 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
774 if (!new)
775 return -ENOMEM;
776
777 new->len = resp_len;
778 memcpy(new->data, resp, resp_len);
779
780 if (csa)
781 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
782 csa->n_counter_offsets_presp *
783 sizeof(new->csa_counter_offsets[0]));
784
785 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
786 if (old)
787 kfree_rcu(old, rcu_head);
788
789 return 0;
790 }
791
792 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
793 struct cfg80211_beacon_data *params,
794 const struct ieee80211_csa_settings *csa)
795 {
796 struct beacon_data *new, *old;
797 int new_head_len, new_tail_len;
798 int size, err;
799 u32 changed = BSS_CHANGED_BEACON;
800
801 old = sdata_dereference(sdata->u.ap.beacon, sdata);
802
803
804 /* Need to have a beacon head if we don't have one yet */
805 if (!params->head && !old)
806 return -EINVAL;
807
808 /* new or old head? */
809 if (params->head)
810 new_head_len = params->head_len;
811 else
812 new_head_len = old->head_len;
813
814 /* new or old tail? */
815 if (params->tail || !old)
816 /* params->tail_len will be zero for !params->tail */
817 new_tail_len = params->tail_len;
818 else
819 new_tail_len = old->tail_len;
820
821 size = sizeof(*new) + new_head_len + new_tail_len;
822
823 new = kzalloc(size, GFP_KERNEL);
824 if (!new)
825 return -ENOMEM;
826
827 /* start filling the new info now */
828
829 /*
830 * pointers go into the block we allocated,
831 * memory is | beacon_data | head | tail |
832 */
833 new->head = ((u8 *) new) + sizeof(*new);
834 new->tail = new->head + new_head_len;
835 new->head_len = new_head_len;
836 new->tail_len = new_tail_len;
837
838 if (csa) {
839 new->csa_current_counter = csa->count;
840 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
841 csa->n_counter_offsets_beacon *
842 sizeof(new->csa_counter_offsets[0]));
843 }
844
845 /* copy in head */
846 if (params->head)
847 memcpy(new->head, params->head, new_head_len);
848 else
849 memcpy(new->head, old->head, new_head_len);
850
851 /* copy in optional tail */
852 if (params->tail)
853 memcpy(new->tail, params->tail, new_tail_len);
854 else
855 if (old)
856 memcpy(new->tail, old->tail, new_tail_len);
857
858 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
859 params->probe_resp_len, csa);
860 if (err < 0)
861 return err;
862 if (err == 0)
863 changed |= BSS_CHANGED_AP_PROBE_RESP;
864
865 rcu_assign_pointer(sdata->u.ap.beacon, new);
866
867 if (old)
868 kfree_rcu(old, rcu_head);
869
870 return changed;
871 }
872
873 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
874 struct cfg80211_ap_settings *params)
875 {
876 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
877 struct ieee80211_local *local = sdata->local;
878 struct beacon_data *old;
879 struct ieee80211_sub_if_data *vlan;
880 u32 changed = BSS_CHANGED_BEACON_INT |
881 BSS_CHANGED_BEACON_ENABLED |
882 BSS_CHANGED_BEACON |
883 BSS_CHANGED_SSID |
884 BSS_CHANGED_P2P_PS |
885 BSS_CHANGED_TXPOWER;
886 int err;
887
888 old = sdata_dereference(sdata->u.ap.beacon, sdata);
889 if (old)
890 return -EALREADY;
891
892 switch (params->smps_mode) {
893 case NL80211_SMPS_OFF:
894 sdata->smps_mode = IEEE80211_SMPS_OFF;
895 break;
896 case NL80211_SMPS_STATIC:
897 sdata->smps_mode = IEEE80211_SMPS_STATIC;
898 break;
899 case NL80211_SMPS_DYNAMIC:
900 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
901 break;
902 default:
903 return -EINVAL;
904 }
905 sdata->needed_rx_chains = sdata->local->rx_chains;
906
907 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
908
909 mutex_lock(&local->mtx);
910 err = ieee80211_vif_use_channel(sdata, &params->chandef,
911 IEEE80211_CHANCTX_SHARED);
912 if (!err)
913 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
914 mutex_unlock(&local->mtx);
915 if (err)
916 return err;
917
918 /*
919 * Apply control port protocol, this allows us to
920 * not encrypt dynamic WEP control frames.
921 */
922 sdata->control_port_protocol = params->crypto.control_port_ethertype;
923 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
924 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
925 &params->crypto,
926 sdata->vif.type);
927
928 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
929 vlan->control_port_protocol =
930 params->crypto.control_port_ethertype;
931 vlan->control_port_no_encrypt =
932 params->crypto.control_port_no_encrypt;
933 vlan->encrypt_headroom =
934 ieee80211_cs_headroom(sdata->local,
935 &params->crypto,
936 vlan->vif.type);
937 }
938
939 sdata->vif.bss_conf.dtim_period = params->dtim_period;
940 sdata->vif.bss_conf.enable_beacon = true;
941 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
942
943 sdata->vif.bss_conf.ssid_len = params->ssid_len;
944 if (params->ssid_len)
945 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
946 params->ssid_len);
947 sdata->vif.bss_conf.hidden_ssid =
948 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
949
950 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
951 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
952 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
953 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
954 if (params->p2p_opp_ps)
955 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
956 IEEE80211_P2P_OPPPS_ENABLE_BIT;
957
958 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
959 if (err < 0) {
960 ieee80211_vif_release_channel(sdata);
961 return err;
962 }
963 changed |= err;
964
965 err = drv_start_ap(sdata->local, sdata);
966 if (err) {
967 old = sdata_dereference(sdata->u.ap.beacon, sdata);
968
969 if (old)
970 kfree_rcu(old, rcu_head);
971 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
972 ieee80211_vif_release_channel(sdata);
973 return err;
974 }
975
976 ieee80211_recalc_dtim(local, sdata);
977 ieee80211_bss_info_change_notify(sdata, changed);
978
979 netif_carrier_on(dev);
980 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
981 netif_carrier_on(vlan->dev);
982
983 return 0;
984 }
985
986 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
987 struct cfg80211_beacon_data *params)
988 {
989 struct ieee80211_sub_if_data *sdata;
990 struct beacon_data *old;
991 int err;
992
993 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
994 sdata_assert_lock(sdata);
995
996 /* don't allow changing the beacon while CSA is in place - offset
997 * of channel switch counter may change
998 */
999 if (sdata->vif.csa_active)
1000 return -EBUSY;
1001
1002 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1003 if (!old)
1004 return -ENOENT;
1005
1006 err = ieee80211_assign_beacon(sdata, params, NULL);
1007 if (err < 0)
1008 return err;
1009 ieee80211_bss_info_change_notify(sdata, err);
1010 return 0;
1011 }
1012
1013 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1014 {
1015 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1016 struct ieee80211_sub_if_data *vlan;
1017 struct ieee80211_local *local = sdata->local;
1018 struct beacon_data *old_beacon;
1019 struct probe_resp *old_probe_resp;
1020 struct cfg80211_chan_def chandef;
1021
1022 sdata_assert_lock(sdata);
1023
1024 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1025 if (!old_beacon)
1026 return -ENOENT;
1027 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1028
1029 /* abort any running channel switch */
1030 mutex_lock(&local->mtx);
1031 sdata->vif.csa_active = false;
1032 if (sdata->csa_block_tx) {
1033 ieee80211_wake_vif_queues(local, sdata,
1034 IEEE80211_QUEUE_STOP_REASON_CSA);
1035 sdata->csa_block_tx = false;
1036 }
1037
1038 mutex_unlock(&local->mtx);
1039
1040 kfree(sdata->u.ap.next_beacon);
1041 sdata->u.ap.next_beacon = NULL;
1042
1043 /* turn off carrier for this interface and dependent VLANs */
1044 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1045 netif_carrier_off(vlan->dev);
1046 netif_carrier_off(dev);
1047
1048 /* remove beacon and probe response */
1049 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1050 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1051 kfree_rcu(old_beacon, rcu_head);
1052 if (old_probe_resp)
1053 kfree_rcu(old_probe_resp, rcu_head);
1054 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1055
1056 __sta_info_flush(sdata, true);
1057 ieee80211_free_keys(sdata, true);
1058
1059 sdata->vif.bss_conf.enable_beacon = false;
1060 sdata->vif.bss_conf.ssid_len = 0;
1061 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1062 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1063
1064 if (sdata->wdev.cac_started) {
1065 chandef = sdata->vif.bss_conf.chandef;
1066 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1067 cfg80211_cac_event(sdata->dev, &chandef,
1068 NL80211_RADAR_CAC_ABORTED,
1069 GFP_KERNEL);
1070 }
1071
1072 drv_stop_ap(sdata->local, sdata);
1073
1074 /* free all potentially still buffered bcast frames */
1075 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1076 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1077
1078 mutex_lock(&local->mtx);
1079 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1080 ieee80211_vif_release_channel(sdata);
1081 mutex_unlock(&local->mtx);
1082
1083 return 0;
1084 }
1085
1086 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1087 struct iapp_layer2_update {
1088 u8 da[ETH_ALEN]; /* broadcast */
1089 u8 sa[ETH_ALEN]; /* STA addr */
1090 __be16 len; /* 6 */
1091 u8 dsap; /* 0 */
1092 u8 ssap; /* 0 */
1093 u8 control;
1094 u8 xid_info[3];
1095 } __packed;
1096
1097 static void ieee80211_send_layer2_update(struct sta_info *sta)
1098 {
1099 struct iapp_layer2_update *msg;
1100 struct sk_buff *skb;
1101
1102 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1103 * bridge devices */
1104
1105 skb = dev_alloc_skb(sizeof(*msg));
1106 if (!skb)
1107 return;
1108 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1109
1110 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1111 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1112
1113 eth_broadcast_addr(msg->da);
1114 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1115 msg->len = htons(6);
1116 msg->dsap = 0;
1117 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1118 msg->control = 0xaf; /* XID response lsb.1111F101.
1119 * F=0 (no poll command; unsolicited frame) */
1120 msg->xid_info[0] = 0x81; /* XID format identifier */
1121 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1122 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1123
1124 skb->dev = sta->sdata->dev;
1125 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1126 memset(skb->cb, 0, sizeof(skb->cb));
1127 netif_rx_ni(skb);
1128 }
1129
1130 static int sta_apply_auth_flags(struct ieee80211_local *local,
1131 struct sta_info *sta,
1132 u32 mask, u32 set)
1133 {
1134 int ret;
1135
1136 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1137 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1138 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1139 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1140 if (ret)
1141 return ret;
1142 }
1143
1144 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1145 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1146 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1147 /*
1148 * When peer becomes associated, init rate control as
1149 * well. Some drivers require rate control initialized
1150 * before drv_sta_state() is called.
1151 */
1152 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1153 rate_control_rate_init(sta);
1154
1155 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1156 if (ret)
1157 return ret;
1158 }
1159
1160 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1161 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1162 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1163 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1164 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1165 else
1166 ret = 0;
1167 if (ret)
1168 return ret;
1169 }
1170
1171 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1172 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1173 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1174 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1175 if (ret)
1176 return ret;
1177 }
1178
1179 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1180 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1181 test_sta_flag(sta, WLAN_STA_AUTH)) {
1182 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1183 if (ret)
1184 return ret;
1185 }
1186
1187 return 0;
1188 }
1189
1190 static void sta_apply_mesh_params(struct ieee80211_local *local,
1191 struct sta_info *sta,
1192 struct station_parameters *params)
1193 {
1194 #ifdef CONFIG_MAC80211_MESH
1195 struct ieee80211_sub_if_data *sdata = sta->sdata;
1196 u32 changed = 0;
1197
1198 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1199 switch (params->plink_state) {
1200 case NL80211_PLINK_ESTAB:
1201 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1202 changed = mesh_plink_inc_estab_count(sdata);
1203 sta->mesh->plink_state = params->plink_state;
1204 sta->mesh->aid = params->peer_aid;
1205
1206 ieee80211_mps_sta_status_update(sta);
1207 changed |= ieee80211_mps_set_sta_local_pm(sta,
1208 sdata->u.mesh.mshcfg.power_mode);
1209 break;
1210 case NL80211_PLINK_LISTEN:
1211 case NL80211_PLINK_BLOCKED:
1212 case NL80211_PLINK_OPN_SNT:
1213 case NL80211_PLINK_OPN_RCVD:
1214 case NL80211_PLINK_CNF_RCVD:
1215 case NL80211_PLINK_HOLDING:
1216 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1217 changed = mesh_plink_dec_estab_count(sdata);
1218 sta->mesh->plink_state = params->plink_state;
1219
1220 ieee80211_mps_sta_status_update(sta);
1221 changed |= ieee80211_mps_set_sta_local_pm(sta,
1222 NL80211_MESH_POWER_UNKNOWN);
1223 break;
1224 default:
1225 /* nothing */
1226 break;
1227 }
1228 }
1229
1230 switch (params->plink_action) {
1231 case NL80211_PLINK_ACTION_NO_ACTION:
1232 /* nothing */
1233 break;
1234 case NL80211_PLINK_ACTION_OPEN:
1235 changed |= mesh_plink_open(sta);
1236 break;
1237 case NL80211_PLINK_ACTION_BLOCK:
1238 changed |= mesh_plink_block(sta);
1239 break;
1240 }
1241
1242 if (params->local_pm)
1243 changed |= ieee80211_mps_set_sta_local_pm(sta,
1244 params->local_pm);
1245
1246 ieee80211_mbss_info_change_notify(sdata, changed);
1247 #endif
1248 }
1249
1250 static int sta_apply_parameters(struct ieee80211_local *local,
1251 struct sta_info *sta,
1252 struct station_parameters *params)
1253 {
1254 int ret = 0;
1255 struct ieee80211_supported_band *sband;
1256 struct ieee80211_sub_if_data *sdata = sta->sdata;
1257 u32 mask, set;
1258
1259 sband = ieee80211_get_sband(sdata);
1260 if (!sband)
1261 return -EINVAL;
1262
1263 mask = params->sta_flags_mask;
1264 set = params->sta_flags_set;
1265
1266 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1267 /*
1268 * In mesh mode, ASSOCIATED isn't part of the nl80211
1269 * API but must follow AUTHENTICATED for driver state.
1270 */
1271 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1272 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1273 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1274 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1275 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1276 /*
1277 * TDLS -- everything follows authorized, but
1278 * only becoming authorized is possible, not
1279 * going back
1280 */
1281 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1282 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1283 BIT(NL80211_STA_FLAG_ASSOCIATED);
1284 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1285 BIT(NL80211_STA_FLAG_ASSOCIATED);
1286 }
1287 }
1288
1289 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1290 local->hw.queues >= IEEE80211_NUM_ACS)
1291 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1292
1293 /* auth flags will be set later for TDLS,
1294 * and for unassociated stations that move to assocaited */
1295 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1296 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1297 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1298 ret = sta_apply_auth_flags(local, sta, mask, set);
1299 if (ret)
1300 return ret;
1301 }
1302
1303 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1304 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1305 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1306 else
1307 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1308 }
1309
1310 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1311 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1312 if (set & BIT(NL80211_STA_FLAG_MFP))
1313 set_sta_flag(sta, WLAN_STA_MFP);
1314 else
1315 clear_sta_flag(sta, WLAN_STA_MFP);
1316 }
1317
1318 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1319 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1320 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1321 else
1322 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1323 }
1324
1325 /* mark TDLS channel switch support, if the AP allows it */
1326 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1327 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1328 params->ext_capab_len >= 4 &&
1329 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1330 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1331
1332 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1333 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1334 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1335 params->ext_capab_len >= 8 &&
1336 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1337 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1338
1339 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1340 sta->sta.uapsd_queues = params->uapsd_queues;
1341 sta->sta.max_sp = params->max_sp;
1342 }
1343
1344 /* The sender might not have sent the last bit, consider it to be 0 */
1345 if (params->ext_capab_len >= 8) {
1346 u8 val = (params->ext_capab[7] &
1347 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1348
1349 /* we did get all the bits, take the MSB as well */
1350 if (params->ext_capab_len >= 9) {
1351 u8 val_msb = params->ext_capab[8] &
1352 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1353 val_msb <<= 1;
1354 val |= val_msb;
1355 }
1356
1357 switch (val) {
1358 case 1:
1359 sta->sta.max_amsdu_subframes = 32;
1360 break;
1361 case 2:
1362 sta->sta.max_amsdu_subframes = 16;
1363 break;
1364 case 3:
1365 sta->sta.max_amsdu_subframes = 8;
1366 break;
1367 default:
1368 sta->sta.max_amsdu_subframes = 0;
1369 }
1370 }
1371
1372 /*
1373 * cfg80211 validates this (1-2007) and allows setting the AID
1374 * only when creating a new station entry
1375 */
1376 if (params->aid)
1377 sta->sta.aid = params->aid;
1378
1379 /*
1380 * Some of the following updates would be racy if called on an
1381 * existing station, via ieee80211_change_station(). However,
1382 * all such changes are rejected by cfg80211 except for updates
1383 * changing the supported rates on an existing but not yet used
1384 * TDLS peer.
1385 */
1386
1387 if (params->listen_interval >= 0)
1388 sta->listen_interval = params->listen_interval;
1389
1390 if (params->supported_rates) {
1391 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1392 sband, params->supported_rates,
1393 params->supported_rates_len,
1394 &sta->sta.supp_rates[sband->band]);
1395 }
1396
1397 if (params->ht_capa)
1398 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1399 params->ht_capa, sta);
1400
1401 /* VHT can override some HT caps such as the A-MSDU max length */
1402 if (params->vht_capa)
1403 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1404 params->vht_capa, sta);
1405
1406 if (params->opmode_notif_used) {
1407 /* returned value is only needed for rc update, but the
1408 * rc isn't initialized here yet, so ignore it
1409 */
1410 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1411 sband->band);
1412 }
1413
1414 if (params->support_p2p_ps >= 0)
1415 sta->sta.support_p2p_ps = params->support_p2p_ps;
1416
1417 if (ieee80211_vif_is_mesh(&sdata->vif))
1418 sta_apply_mesh_params(local, sta, params);
1419
1420 /* set the STA state after all sta info from usermode has been set */
1421 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1422 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1423 ret = sta_apply_auth_flags(local, sta, mask, set);
1424 if (ret)
1425 return ret;
1426 }
1427
1428 return 0;
1429 }
1430
1431 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1432 const u8 *mac,
1433 struct station_parameters *params)
1434 {
1435 struct ieee80211_local *local = wiphy_priv(wiphy);
1436 struct sta_info *sta;
1437 struct ieee80211_sub_if_data *sdata;
1438 int err;
1439 int layer2_update;
1440
1441 if (params->vlan) {
1442 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1443
1444 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1445 sdata->vif.type != NL80211_IFTYPE_AP)
1446 return -EINVAL;
1447 } else
1448 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1449
1450 if (ether_addr_equal(mac, sdata->vif.addr))
1451 return -EINVAL;
1452
1453 if (is_multicast_ether_addr(mac))
1454 return -EINVAL;
1455
1456 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1457 if (!sta)
1458 return -ENOMEM;
1459
1460 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1461 sta->sta.tdls = true;
1462
1463 err = sta_apply_parameters(local, sta, params);
1464 if (err) {
1465 sta_info_free(local, sta);
1466 return err;
1467 }
1468
1469 /*
1470 * for TDLS and for unassociated station, rate control should be
1471 * initialized only when rates are known and station is marked
1472 * authorized/associated
1473 */
1474 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1475 test_sta_flag(sta, WLAN_STA_ASSOC))
1476 rate_control_rate_init(sta);
1477
1478 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1479 sdata->vif.type == NL80211_IFTYPE_AP;
1480
1481 err = sta_info_insert_rcu(sta);
1482 if (err) {
1483 rcu_read_unlock();
1484 return err;
1485 }
1486
1487 if (layer2_update)
1488 ieee80211_send_layer2_update(sta);
1489
1490 rcu_read_unlock();
1491
1492 return 0;
1493 }
1494
1495 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1496 struct station_del_parameters *params)
1497 {
1498 struct ieee80211_sub_if_data *sdata;
1499
1500 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1501
1502 if (params->mac)
1503 return sta_info_destroy_addr_bss(sdata, params->mac);
1504
1505 sta_info_flush(sdata);
1506 return 0;
1507 }
1508
1509 static int ieee80211_change_station(struct wiphy *wiphy,
1510 struct net_device *dev, const u8 *mac,
1511 struct station_parameters *params)
1512 {
1513 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1514 struct ieee80211_local *local = wiphy_priv(wiphy);
1515 struct sta_info *sta;
1516 struct ieee80211_sub_if_data *vlansdata;
1517 enum cfg80211_station_type statype;
1518 int err;
1519
1520 mutex_lock(&local->sta_mtx);
1521
1522 sta = sta_info_get_bss(sdata, mac);
1523 if (!sta) {
1524 err = -ENOENT;
1525 goto out_err;
1526 }
1527
1528 switch (sdata->vif.type) {
1529 case NL80211_IFTYPE_MESH_POINT:
1530 if (sdata->u.mesh.user_mpm)
1531 statype = CFG80211_STA_MESH_PEER_USER;
1532 else
1533 statype = CFG80211_STA_MESH_PEER_KERNEL;
1534 break;
1535 case NL80211_IFTYPE_ADHOC:
1536 statype = CFG80211_STA_IBSS;
1537 break;
1538 case NL80211_IFTYPE_STATION:
1539 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1540 statype = CFG80211_STA_AP_STA;
1541 break;
1542 }
1543 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1544 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1545 else
1546 statype = CFG80211_STA_TDLS_PEER_SETUP;
1547 break;
1548 case NL80211_IFTYPE_AP:
1549 case NL80211_IFTYPE_AP_VLAN:
1550 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1551 statype = CFG80211_STA_AP_CLIENT;
1552 else
1553 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1554 break;
1555 default:
1556 err = -EOPNOTSUPP;
1557 goto out_err;
1558 }
1559
1560 err = cfg80211_check_station_change(wiphy, params, statype);
1561 if (err)
1562 goto out_err;
1563
1564 if (params->vlan && params->vlan != sta->sdata->dev) {
1565 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1566
1567 if (params->vlan->ieee80211_ptr->use_4addr) {
1568 if (vlansdata->u.vlan.sta) {
1569 err = -EBUSY;
1570 goto out_err;
1571 }
1572
1573 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1574 __ieee80211_check_fast_rx_iface(vlansdata);
1575 }
1576
1577 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1578 sta->sdata->u.vlan.sta)
1579 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1580
1581 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1582 ieee80211_vif_dec_num_mcast(sta->sdata);
1583
1584 sta->sdata = vlansdata;
1585 ieee80211_check_fast_xmit(sta);
1586
1587 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1588 ieee80211_vif_inc_num_mcast(sta->sdata);
1589
1590 ieee80211_send_layer2_update(sta);
1591 }
1592
1593 err = sta_apply_parameters(local, sta, params);
1594 if (err)
1595 goto out_err;
1596
1597 mutex_unlock(&local->sta_mtx);
1598
1599 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1600 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1601 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1602 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1603 sta_info_tx_streams(sta) != 1) {
1604 ht_dbg(sta->sdata,
1605 "%pM just authorized and MIMO capable - update SMPS\n",
1606 sta->sta.addr);
1607 ieee80211_send_smps_action(sta->sdata,
1608 sta->sdata->bss->req_smps,
1609 sta->sta.addr,
1610 sta->sdata->vif.bss_conf.bssid);
1611 }
1612
1613 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1614 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1615 ieee80211_recalc_ps(local);
1616 ieee80211_recalc_ps_vif(sdata);
1617 }
1618
1619 return 0;
1620 out_err:
1621 mutex_unlock(&local->sta_mtx);
1622 return err;
1623 }
1624
1625 #ifdef CONFIG_MAC80211_MESH
1626 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1627 const u8 *dst, const u8 *next_hop)
1628 {
1629 struct ieee80211_sub_if_data *sdata;
1630 struct mesh_path *mpath;
1631 struct sta_info *sta;
1632
1633 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1634
1635 rcu_read_lock();
1636 sta = sta_info_get(sdata, next_hop);
1637 if (!sta) {
1638 rcu_read_unlock();
1639 return -ENOENT;
1640 }
1641
1642 mpath = mesh_path_add(sdata, dst);
1643 if (IS_ERR(mpath)) {
1644 rcu_read_unlock();
1645 return PTR_ERR(mpath);
1646 }
1647
1648 mesh_path_fix_nexthop(mpath, sta);
1649
1650 rcu_read_unlock();
1651 return 0;
1652 }
1653
1654 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1655 const u8 *dst)
1656 {
1657 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1658
1659 if (dst)
1660 return mesh_path_del(sdata, dst);
1661
1662 mesh_path_flush_by_iface(sdata);
1663 return 0;
1664 }
1665
1666 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1667 const u8 *dst, const u8 *next_hop)
1668 {
1669 struct ieee80211_sub_if_data *sdata;
1670 struct mesh_path *mpath;
1671 struct sta_info *sta;
1672
1673 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1674
1675 rcu_read_lock();
1676
1677 sta = sta_info_get(sdata, next_hop);
1678 if (!sta) {
1679 rcu_read_unlock();
1680 return -ENOENT;
1681 }
1682
1683 mpath = mesh_path_lookup(sdata, dst);
1684 if (!mpath) {
1685 rcu_read_unlock();
1686 return -ENOENT;
1687 }
1688
1689 mesh_path_fix_nexthop(mpath, sta);
1690
1691 rcu_read_unlock();
1692 return 0;
1693 }
1694
1695 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1696 struct mpath_info *pinfo)
1697 {
1698 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1699
1700 if (next_hop_sta)
1701 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1702 else
1703 eth_zero_addr(next_hop);
1704
1705 memset(pinfo, 0, sizeof(*pinfo));
1706
1707 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1708
1709 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1710 MPATH_INFO_SN |
1711 MPATH_INFO_METRIC |
1712 MPATH_INFO_EXPTIME |
1713 MPATH_INFO_DISCOVERY_TIMEOUT |
1714 MPATH_INFO_DISCOVERY_RETRIES |
1715 MPATH_INFO_FLAGS;
1716
1717 pinfo->frame_qlen = mpath->frame_queue.qlen;
1718 pinfo->sn = mpath->sn;
1719 pinfo->metric = mpath->metric;
1720 if (time_before(jiffies, mpath->exp_time))
1721 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1722 pinfo->discovery_timeout =
1723 jiffies_to_msecs(mpath->discovery_timeout);
1724 pinfo->discovery_retries = mpath->discovery_retries;
1725 if (mpath->flags & MESH_PATH_ACTIVE)
1726 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1727 if (mpath->flags & MESH_PATH_RESOLVING)
1728 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1729 if (mpath->flags & MESH_PATH_SN_VALID)
1730 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1731 if (mpath->flags & MESH_PATH_FIXED)
1732 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1733 if (mpath->flags & MESH_PATH_RESOLVED)
1734 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1735 }
1736
1737 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1738 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1739
1740 {
1741 struct ieee80211_sub_if_data *sdata;
1742 struct mesh_path *mpath;
1743
1744 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1745
1746 rcu_read_lock();
1747 mpath = mesh_path_lookup(sdata, dst);
1748 if (!mpath) {
1749 rcu_read_unlock();
1750 return -ENOENT;
1751 }
1752 memcpy(dst, mpath->dst, ETH_ALEN);
1753 mpath_set_pinfo(mpath, next_hop, pinfo);
1754 rcu_read_unlock();
1755 return 0;
1756 }
1757
1758 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1759 int idx, u8 *dst, u8 *next_hop,
1760 struct mpath_info *pinfo)
1761 {
1762 struct ieee80211_sub_if_data *sdata;
1763 struct mesh_path *mpath;
1764
1765 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1766
1767 rcu_read_lock();
1768 mpath = mesh_path_lookup_by_idx(sdata, idx);
1769 if (!mpath) {
1770 rcu_read_unlock();
1771 return -ENOENT;
1772 }
1773 memcpy(dst, mpath->dst, ETH_ALEN);
1774 mpath_set_pinfo(mpath, next_hop, pinfo);
1775 rcu_read_unlock();
1776 return 0;
1777 }
1778
1779 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1780 struct mpath_info *pinfo)
1781 {
1782 memset(pinfo, 0, sizeof(*pinfo));
1783 memcpy(mpp, mpath->mpp, ETH_ALEN);
1784
1785 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1786 }
1787
1788 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1789 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1790
1791 {
1792 struct ieee80211_sub_if_data *sdata;
1793 struct mesh_path *mpath;
1794
1795 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1796
1797 rcu_read_lock();
1798 mpath = mpp_path_lookup(sdata, dst);
1799 if (!mpath) {
1800 rcu_read_unlock();
1801 return -ENOENT;
1802 }
1803 memcpy(dst, mpath->dst, ETH_ALEN);
1804 mpp_set_pinfo(mpath, mpp, pinfo);
1805 rcu_read_unlock();
1806 return 0;
1807 }
1808
1809 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1810 int idx, u8 *dst, u8 *mpp,
1811 struct mpath_info *pinfo)
1812 {
1813 struct ieee80211_sub_if_data *sdata;
1814 struct mesh_path *mpath;
1815
1816 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1817
1818 rcu_read_lock();
1819 mpath = mpp_path_lookup_by_idx(sdata, idx);
1820 if (!mpath) {
1821 rcu_read_unlock();
1822 return -ENOENT;
1823 }
1824 memcpy(dst, mpath->dst, ETH_ALEN);
1825 mpp_set_pinfo(mpath, mpp, pinfo);
1826 rcu_read_unlock();
1827 return 0;
1828 }
1829
1830 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1831 struct net_device *dev,
1832 struct mesh_config *conf)
1833 {
1834 struct ieee80211_sub_if_data *sdata;
1835 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1836
1837 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1838 return 0;
1839 }
1840
1841 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1842 {
1843 return (mask >> (parm-1)) & 0x1;
1844 }
1845
1846 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1847 const struct mesh_setup *setup)
1848 {
1849 u8 *new_ie;
1850 const u8 *old_ie;
1851 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1852 struct ieee80211_sub_if_data, u.mesh);
1853
1854 /* allocate information elements */
1855 new_ie = NULL;
1856 old_ie = ifmsh->ie;
1857
1858 if (setup->ie_len) {
1859 new_ie = kmemdup(setup->ie, setup->ie_len,
1860 GFP_KERNEL);
1861 if (!new_ie)
1862 return -ENOMEM;
1863 }
1864 ifmsh->ie_len = setup->ie_len;
1865 ifmsh->ie = new_ie;
1866 kfree(old_ie);
1867
1868 /* now copy the rest of the setup parameters */
1869 ifmsh->mesh_id_len = setup->mesh_id_len;
1870 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1871 ifmsh->mesh_sp_id = setup->sync_method;
1872 ifmsh->mesh_pp_id = setup->path_sel_proto;
1873 ifmsh->mesh_pm_id = setup->path_metric;
1874 ifmsh->user_mpm = setup->user_mpm;
1875 ifmsh->mesh_auth_id = setup->auth_id;
1876 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1877 if (setup->is_authenticated)
1878 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1879 if (setup->is_secure)
1880 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1881
1882 /* mcast rate setting in Mesh Node */
1883 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1884 sizeof(setup->mcast_rate));
1885 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1886
1887 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1888 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1889
1890 return 0;
1891 }
1892
1893 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1894 struct net_device *dev, u32 mask,
1895 const struct mesh_config *nconf)
1896 {
1897 struct mesh_config *conf;
1898 struct ieee80211_sub_if_data *sdata;
1899 struct ieee80211_if_mesh *ifmsh;
1900
1901 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1902 ifmsh = &sdata->u.mesh;
1903
1904 /* Set the config options which we are interested in setting */
1905 conf = &(sdata->u.mesh.mshcfg);
1906 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1907 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1908 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1909 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1910 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1911 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1912 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1913 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1914 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1915 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1916 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1917 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1918 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1919 conf->element_ttl = nconf->element_ttl;
1920 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1921 if (ifmsh->user_mpm)
1922 return -EBUSY;
1923 conf->auto_open_plinks = nconf->auto_open_plinks;
1924 }
1925 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1926 conf->dot11MeshNbrOffsetMaxNeighbor =
1927 nconf->dot11MeshNbrOffsetMaxNeighbor;
1928 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1929 conf->dot11MeshHWMPmaxPREQretries =
1930 nconf->dot11MeshHWMPmaxPREQretries;
1931 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1932 conf->path_refresh_time = nconf->path_refresh_time;
1933 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1934 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1935 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1936 conf->dot11MeshHWMPactivePathTimeout =
1937 nconf->dot11MeshHWMPactivePathTimeout;
1938 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1939 conf->dot11MeshHWMPpreqMinInterval =
1940 nconf->dot11MeshHWMPpreqMinInterval;
1941 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1942 conf->dot11MeshHWMPperrMinInterval =
1943 nconf->dot11MeshHWMPperrMinInterval;
1944 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1945 mask))
1946 conf->dot11MeshHWMPnetDiameterTraversalTime =
1947 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1948 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1949 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1950 ieee80211_mesh_root_setup(ifmsh);
1951 }
1952 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1953 /* our current gate announcement implementation rides on root
1954 * announcements, so require this ifmsh to also be a root node
1955 * */
1956 if (nconf->dot11MeshGateAnnouncementProtocol &&
1957 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1958 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1959 ieee80211_mesh_root_setup(ifmsh);
1960 }
1961 conf->dot11MeshGateAnnouncementProtocol =
1962 nconf->dot11MeshGateAnnouncementProtocol;
1963 }
1964 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1965 conf->dot11MeshHWMPRannInterval =
1966 nconf->dot11MeshHWMPRannInterval;
1967 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1968 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1969 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1970 /* our RSSI threshold implementation is supported only for
1971 * devices that report signal in dBm.
1972 */
1973 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
1974 return -ENOTSUPP;
1975 conf->rssi_threshold = nconf->rssi_threshold;
1976 }
1977 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1978 conf->ht_opmode = nconf->ht_opmode;
1979 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1980 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1981 }
1982 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1983 conf->dot11MeshHWMPactivePathToRootTimeout =
1984 nconf->dot11MeshHWMPactivePathToRootTimeout;
1985 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1986 conf->dot11MeshHWMProotInterval =
1987 nconf->dot11MeshHWMProotInterval;
1988 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1989 conf->dot11MeshHWMPconfirmationInterval =
1990 nconf->dot11MeshHWMPconfirmationInterval;
1991 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1992 conf->power_mode = nconf->power_mode;
1993 ieee80211_mps_local_status_update(sdata);
1994 }
1995 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1996 conf->dot11MeshAwakeWindowDuration =
1997 nconf->dot11MeshAwakeWindowDuration;
1998 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1999 conf->plink_timeout = nconf->plink_timeout;
2000 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2001 return 0;
2002 }
2003
2004 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2005 const struct mesh_config *conf,
2006 const struct mesh_setup *setup)
2007 {
2008 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2009 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2010 int err;
2011
2012 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2013 err = copy_mesh_setup(ifmsh, setup);
2014 if (err)
2015 return err;
2016
2017 /* can mesh use other SMPS modes? */
2018 sdata->smps_mode = IEEE80211_SMPS_OFF;
2019 sdata->needed_rx_chains = sdata->local->rx_chains;
2020
2021 mutex_lock(&sdata->local->mtx);
2022 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2023 IEEE80211_CHANCTX_SHARED);
2024 mutex_unlock(&sdata->local->mtx);
2025 if (err)
2026 return err;
2027
2028 return ieee80211_start_mesh(sdata);
2029 }
2030
2031 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2032 {
2033 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2034
2035 ieee80211_stop_mesh(sdata);
2036 mutex_lock(&sdata->local->mtx);
2037 ieee80211_vif_release_channel(sdata);
2038 mutex_unlock(&sdata->local->mtx);
2039
2040 return 0;
2041 }
2042 #endif
2043
2044 static int ieee80211_change_bss(struct wiphy *wiphy,
2045 struct net_device *dev,
2046 struct bss_parameters *params)
2047 {
2048 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2049 struct ieee80211_supported_band *sband;
2050 u32 changed = 0;
2051
2052 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2053 return -ENOENT;
2054
2055 sband = ieee80211_get_sband(sdata);
2056 if (!sband)
2057 return -EINVAL;
2058
2059 if (params->use_cts_prot >= 0) {
2060 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2061 changed |= BSS_CHANGED_ERP_CTS_PROT;
2062 }
2063 if (params->use_short_preamble >= 0) {
2064 sdata->vif.bss_conf.use_short_preamble =
2065 params->use_short_preamble;
2066 changed |= BSS_CHANGED_ERP_PREAMBLE;
2067 }
2068
2069 if (!sdata->vif.bss_conf.use_short_slot &&
2070 sband->band == NL80211_BAND_5GHZ) {
2071 sdata->vif.bss_conf.use_short_slot = true;
2072 changed |= BSS_CHANGED_ERP_SLOT;
2073 }
2074
2075 if (params->use_short_slot_time >= 0) {
2076 sdata->vif.bss_conf.use_short_slot =
2077 params->use_short_slot_time;
2078 changed |= BSS_CHANGED_ERP_SLOT;
2079 }
2080
2081 if (params->basic_rates) {
2082 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2083 wiphy->bands[sband->band],
2084 params->basic_rates,
2085 params->basic_rates_len,
2086 &sdata->vif.bss_conf.basic_rates);
2087 changed |= BSS_CHANGED_BASIC_RATES;
2088 ieee80211_check_rate_mask(sdata);
2089 }
2090
2091 if (params->ap_isolate >= 0) {
2092 if (params->ap_isolate)
2093 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2094 else
2095 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2096 ieee80211_check_fast_rx_iface(sdata);
2097 }
2098
2099 if (params->ht_opmode >= 0) {
2100 sdata->vif.bss_conf.ht_operation_mode =
2101 (u16) params->ht_opmode;
2102 changed |= BSS_CHANGED_HT;
2103 }
2104
2105 if (params->p2p_ctwindow >= 0) {
2106 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2107 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2108 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2109 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2110 changed |= BSS_CHANGED_P2P_PS;
2111 }
2112
2113 if (params->p2p_opp_ps > 0) {
2114 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2115 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2116 changed |= BSS_CHANGED_P2P_PS;
2117 } else if (params->p2p_opp_ps == 0) {
2118 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2119 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2120 changed |= BSS_CHANGED_P2P_PS;
2121 }
2122
2123 ieee80211_bss_info_change_notify(sdata, changed);
2124
2125 return 0;
2126 }
2127
2128 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2129 struct net_device *dev,
2130 struct ieee80211_txq_params *params)
2131 {
2132 struct ieee80211_local *local = wiphy_priv(wiphy);
2133 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2134 struct ieee80211_tx_queue_params p;
2135
2136 if (!local->ops->conf_tx)
2137 return -EOPNOTSUPP;
2138
2139 if (local->hw.queues < IEEE80211_NUM_ACS)
2140 return -EOPNOTSUPP;
2141
2142 memset(&p, 0, sizeof(p));
2143 p.aifs = params->aifs;
2144 p.cw_max = params->cwmax;
2145 p.cw_min = params->cwmin;
2146 p.txop = params->txop;
2147
2148 /*
2149 * Setting tx queue params disables u-apsd because it's only
2150 * called in master mode.
2151 */
2152 p.uapsd = false;
2153
2154 sdata->tx_conf[params->ac] = p;
2155 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2156 wiphy_debug(local->hw.wiphy,
2157 "failed to set TX queue parameters for AC %d\n",
2158 params->ac);
2159 return -EINVAL;
2160 }
2161
2162 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2163
2164 return 0;
2165 }
2166
2167 #ifdef CONFIG_PM
2168 static int ieee80211_suspend(struct wiphy *wiphy,
2169 struct cfg80211_wowlan *wowlan)
2170 {
2171 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2172 }
2173
2174 static int ieee80211_resume(struct wiphy *wiphy)
2175 {
2176 return __ieee80211_resume(wiphy_priv(wiphy));
2177 }
2178 #else
2179 #define ieee80211_suspend NULL
2180 #define ieee80211_resume NULL
2181 #endif
2182
2183 static int ieee80211_scan(struct wiphy *wiphy,
2184 struct cfg80211_scan_request *req)
2185 {
2186 struct ieee80211_sub_if_data *sdata;
2187
2188 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2189
2190 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2191 case NL80211_IFTYPE_STATION:
2192 case NL80211_IFTYPE_ADHOC:
2193 case NL80211_IFTYPE_MESH_POINT:
2194 case NL80211_IFTYPE_P2P_CLIENT:
2195 case NL80211_IFTYPE_P2P_DEVICE:
2196 break;
2197 case NL80211_IFTYPE_P2P_GO:
2198 if (sdata->local->ops->hw_scan)
2199 break;
2200 /*
2201 * FIXME: implement NoA while scanning in software,
2202 * for now fall through to allow scanning only when
2203 * beaconing hasn't been configured yet
2204 */
2205 case NL80211_IFTYPE_AP:
2206 /*
2207 * If the scan has been forced (and the driver supports
2208 * forcing), don't care about being beaconing already.
2209 * This will create problems to the attached stations (e.g. all
2210 * the frames sent while scanning on other channel will be
2211 * lost)
2212 */
2213 if (sdata->u.ap.beacon &&
2214 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2215 !(req->flags & NL80211_SCAN_FLAG_AP)))
2216 return -EOPNOTSUPP;
2217 break;
2218 case NL80211_IFTYPE_NAN:
2219 default:
2220 return -EOPNOTSUPP;
2221 }
2222
2223 return ieee80211_request_scan(sdata, req);
2224 }
2225
2226 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2227 {
2228 ieee80211_scan_cancel(wiphy_priv(wiphy));
2229 }
2230
2231 static int
2232 ieee80211_sched_scan_start(struct wiphy *wiphy,
2233 struct net_device *dev,
2234 struct cfg80211_sched_scan_request *req)
2235 {
2236 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2237
2238 if (!sdata->local->ops->sched_scan_start)
2239 return -EOPNOTSUPP;
2240
2241 return ieee80211_request_sched_scan_start(sdata, req);
2242 }
2243
2244 static int
2245 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2246 u64 reqid)
2247 {
2248 struct ieee80211_local *local = wiphy_priv(wiphy);
2249
2250 if (!local->ops->sched_scan_stop)
2251 return -EOPNOTSUPP;
2252
2253 return ieee80211_request_sched_scan_stop(local);
2254 }
2255
2256 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2257 struct cfg80211_auth_request *req)
2258 {
2259 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2260 }
2261
2262 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2263 struct cfg80211_assoc_request *req)
2264 {
2265 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2266 }
2267
2268 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2269 struct cfg80211_deauth_request *req)
2270 {
2271 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2272 }
2273
2274 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2275 struct cfg80211_disassoc_request *req)
2276 {
2277 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2278 }
2279
2280 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2281 struct cfg80211_ibss_params *params)
2282 {
2283 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2284 }
2285
2286 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2287 {
2288 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2289 }
2290
2291 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2292 struct ocb_setup *setup)
2293 {
2294 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2295 }
2296
2297 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2298 {
2299 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2300 }
2301
2302 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2303 int rate[NUM_NL80211_BANDS])
2304 {
2305 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2306
2307 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2308 sizeof(int) * NUM_NL80211_BANDS);
2309
2310 return 0;
2311 }
2312
2313 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2314 {
2315 struct ieee80211_local *local = wiphy_priv(wiphy);
2316 int err;
2317
2318 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2319 ieee80211_check_fast_xmit_all(local);
2320
2321 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2322
2323 if (err) {
2324 ieee80211_check_fast_xmit_all(local);
2325 return err;
2326 }
2327 }
2328
2329 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2330 (changed & WIPHY_PARAM_DYN_ACK)) {
2331 s16 coverage_class;
2332
2333 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2334 wiphy->coverage_class : -1;
2335 err = drv_set_coverage_class(local, coverage_class);
2336
2337 if (err)
2338 return err;
2339 }
2340
2341 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2342 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2343
2344 if (err)
2345 return err;
2346 }
2347
2348 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2349 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2350 return -EINVAL;
2351 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2352 }
2353 if (changed & WIPHY_PARAM_RETRY_LONG) {
2354 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2355 return -EINVAL;
2356 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2357 }
2358 if (changed &
2359 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2360 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2361
2362 return 0;
2363 }
2364
2365 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2366 struct wireless_dev *wdev,
2367 enum nl80211_tx_power_setting type, int mbm)
2368 {
2369 struct ieee80211_local *local = wiphy_priv(wiphy);
2370 struct ieee80211_sub_if_data *sdata;
2371 enum nl80211_tx_power_setting txp_type = type;
2372 bool update_txp_type = false;
2373
2374 if (wdev) {
2375 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2376
2377 switch (type) {
2378 case NL80211_TX_POWER_AUTOMATIC:
2379 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2380 txp_type = NL80211_TX_POWER_LIMITED;
2381 break;
2382 case NL80211_TX_POWER_LIMITED:
2383 case NL80211_TX_POWER_FIXED:
2384 if (mbm < 0 || (mbm % 100))
2385 return -EOPNOTSUPP;
2386 sdata->user_power_level = MBM_TO_DBM(mbm);
2387 break;
2388 }
2389
2390 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2391 update_txp_type = true;
2392 sdata->vif.bss_conf.txpower_type = txp_type;
2393 }
2394
2395 ieee80211_recalc_txpower(sdata, update_txp_type);
2396
2397 return 0;
2398 }
2399
2400 switch (type) {
2401 case NL80211_TX_POWER_AUTOMATIC:
2402 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2403 txp_type = NL80211_TX_POWER_LIMITED;
2404 break;
2405 case NL80211_TX_POWER_LIMITED:
2406 case NL80211_TX_POWER_FIXED:
2407 if (mbm < 0 || (mbm % 100))
2408 return -EOPNOTSUPP;
2409 local->user_power_level = MBM_TO_DBM(mbm);
2410 break;
2411 }
2412
2413 mutex_lock(&local->iflist_mtx);
2414 list_for_each_entry(sdata, &local->interfaces, list) {
2415 sdata->user_power_level = local->user_power_level;
2416 if (txp_type != sdata->vif.bss_conf.txpower_type)
2417 update_txp_type = true;
2418 sdata->vif.bss_conf.txpower_type = txp_type;
2419 }
2420 list_for_each_entry(sdata, &local->interfaces, list)
2421 ieee80211_recalc_txpower(sdata, update_txp_type);
2422 mutex_unlock(&local->iflist_mtx);
2423
2424 return 0;
2425 }
2426
2427 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2428 struct wireless_dev *wdev,
2429 int *dbm)
2430 {
2431 struct ieee80211_local *local = wiphy_priv(wiphy);
2432 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2433
2434 if (local->ops->get_txpower)
2435 return drv_get_txpower(local, sdata, dbm);
2436
2437 if (!local->use_chanctx)
2438 *dbm = local->hw.conf.power_level;
2439 else
2440 *dbm = sdata->vif.bss_conf.txpower;
2441
2442 return 0;
2443 }
2444
2445 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2446 const u8 *addr)
2447 {
2448 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2449
2450 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2451
2452 return 0;
2453 }
2454
2455 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2456 {
2457 struct ieee80211_local *local = wiphy_priv(wiphy);
2458
2459 drv_rfkill_poll(local);
2460 }
2461
2462 #ifdef CONFIG_NL80211_TESTMODE
2463 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2464 struct wireless_dev *wdev,
2465 void *data, int len)
2466 {
2467 struct ieee80211_local *local = wiphy_priv(wiphy);
2468 struct ieee80211_vif *vif = NULL;
2469
2470 if (!local->ops->testmode_cmd)
2471 return -EOPNOTSUPP;
2472
2473 if (wdev) {
2474 struct ieee80211_sub_if_data *sdata;
2475
2476 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2477 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2478 vif = &sdata->vif;
2479 }
2480
2481 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2482 }
2483
2484 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2485 struct sk_buff *skb,
2486 struct netlink_callback *cb,
2487 void *data, int len)
2488 {
2489 struct ieee80211_local *local = wiphy_priv(wiphy);
2490
2491 if (!local->ops->testmode_dump)
2492 return -EOPNOTSUPP;
2493
2494 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2495 }
2496 #endif
2497
2498 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2499 enum ieee80211_smps_mode smps_mode)
2500 {
2501 struct sta_info *sta;
2502 enum ieee80211_smps_mode old_req;
2503
2504 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2505 return -EINVAL;
2506
2507 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2508 return 0;
2509
2510 old_req = sdata->u.ap.req_smps;
2511 sdata->u.ap.req_smps = smps_mode;
2512
2513 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2514 if (old_req == smps_mode ||
2515 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2516 return 0;
2517
2518 ht_dbg(sdata,
2519 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2520 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2521
2522 mutex_lock(&sdata->local->sta_mtx);
2523 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2524 /*
2525 * Only stations associated to our AP and
2526 * associated VLANs
2527 */
2528 if (sta->sdata->bss != &sdata->u.ap)
2529 continue;
2530
2531 /* This station doesn't support MIMO - skip it */
2532 if (sta_info_tx_streams(sta) == 1)
2533 continue;
2534
2535 /*
2536 * Don't wake up a STA just to send the action frame
2537 * unless we are getting more restrictive.
2538 */
2539 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2540 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2541 smps_mode)) {
2542 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2543 sta->sta.addr);
2544 continue;
2545 }
2546
2547 /*
2548 * If the STA is not authorized, wait until it gets
2549 * authorized and the action frame will be sent then.
2550 */
2551 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2552 continue;
2553
2554 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2555 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2556 sdata->vif.bss_conf.bssid);
2557 }
2558 mutex_unlock(&sdata->local->sta_mtx);
2559
2560 sdata->smps_mode = smps_mode;
2561 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2562
2563 return 0;
2564 }
2565
2566 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2567 enum ieee80211_smps_mode smps_mode)
2568 {
2569 const u8 *ap;
2570 enum ieee80211_smps_mode old_req;
2571 int err;
2572 struct sta_info *sta;
2573 bool tdls_peer_found = false;
2574
2575 lockdep_assert_held(&sdata->wdev.mtx);
2576
2577 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2578 return -EINVAL;
2579
2580 old_req = sdata->u.mgd.req_smps;
2581 sdata->u.mgd.req_smps = smps_mode;
2582
2583 if (old_req == smps_mode &&
2584 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2585 return 0;
2586
2587 /*
2588 * If not associated, or current association is not an HT
2589 * association, there's no need to do anything, just store
2590 * the new value until we associate.
2591 */
2592 if (!sdata->u.mgd.associated ||
2593 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2594 return 0;
2595
2596 ap = sdata->u.mgd.associated->bssid;
2597
2598 rcu_read_lock();
2599 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2600 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2601 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2602 continue;
2603
2604 tdls_peer_found = true;
2605 break;
2606 }
2607 rcu_read_unlock();
2608
2609 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2610 if (tdls_peer_found || !sdata->u.mgd.powersave)
2611 smps_mode = IEEE80211_SMPS_OFF;
2612 else
2613 smps_mode = IEEE80211_SMPS_DYNAMIC;
2614 }
2615
2616 /* send SM PS frame to AP */
2617 err = ieee80211_send_smps_action(sdata, smps_mode,
2618 ap, ap);
2619 if (err)
2620 sdata->u.mgd.req_smps = old_req;
2621 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2622 ieee80211_teardown_tdls_peers(sdata);
2623
2624 return err;
2625 }
2626
2627 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2628 bool enabled, int timeout)
2629 {
2630 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2631 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2632
2633 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2634 return -EOPNOTSUPP;
2635
2636 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2637 return -EOPNOTSUPP;
2638
2639 if (enabled == sdata->u.mgd.powersave &&
2640 timeout == local->dynamic_ps_forced_timeout)
2641 return 0;
2642
2643 sdata->u.mgd.powersave = enabled;
2644 local->dynamic_ps_forced_timeout = timeout;
2645
2646 /* no change, but if automatic follow powersave */
2647 sdata_lock(sdata);
2648 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2649 sdata_unlock(sdata);
2650
2651 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2652 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2653
2654 ieee80211_recalc_ps(local);
2655 ieee80211_recalc_ps_vif(sdata);
2656
2657 return 0;
2658 }
2659
2660 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2661 struct net_device *dev,
2662 s32 rssi_thold, u32 rssi_hyst)
2663 {
2664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2665 struct ieee80211_vif *vif = &sdata->vif;
2666 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2667
2668 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2669 rssi_hyst == bss_conf->cqm_rssi_hyst)
2670 return 0;
2671
2672 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2673 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2674 return -EOPNOTSUPP;
2675
2676 bss_conf->cqm_rssi_thold = rssi_thold;
2677 bss_conf->cqm_rssi_hyst = rssi_hyst;
2678 bss_conf->cqm_rssi_low = 0;
2679 bss_conf->cqm_rssi_high = 0;
2680 sdata->u.mgd.last_cqm_event_signal = 0;
2681
2682 /* tell the driver upon association, unless already associated */
2683 if (sdata->u.mgd.associated &&
2684 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2685 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2686
2687 return 0;
2688 }
2689
2690 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2691 struct net_device *dev,
2692 s32 rssi_low, s32 rssi_high)
2693 {
2694 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2695 struct ieee80211_vif *vif = &sdata->vif;
2696 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2697
2698 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2699 return -EOPNOTSUPP;
2700
2701 bss_conf->cqm_rssi_low = rssi_low;
2702 bss_conf->cqm_rssi_high = rssi_high;
2703 bss_conf->cqm_rssi_thold = 0;
2704 bss_conf->cqm_rssi_hyst = 0;
2705 sdata->u.mgd.last_cqm_event_signal = 0;
2706
2707 /* tell the driver upon association, unless already associated */
2708 if (sdata->u.mgd.associated &&
2709 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2710 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2711
2712 return 0;
2713 }
2714
2715 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2716 struct net_device *dev,
2717 const u8 *addr,
2718 const struct cfg80211_bitrate_mask *mask)
2719 {
2720 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2721 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2722 int i, ret;
2723
2724 if (!ieee80211_sdata_running(sdata))
2725 return -ENETDOWN;
2726
2727 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2728 ret = drv_set_bitrate_mask(local, sdata, mask);
2729 if (ret)
2730 return ret;
2731 }
2732
2733 /*
2734 * If active validate the setting and reject it if it doesn't leave
2735 * at least one basic rate usable, since we really have to be able
2736 * to send something, and if we're an AP we have to be able to do
2737 * so at a basic rate so that all clients can receive it.
2738 */
2739 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2740 sdata->vif.bss_conf.chandef.chan) {
2741 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2742 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2743
2744 if (!(mask->control[band].legacy & basic_rates))
2745 return -EINVAL;
2746 }
2747
2748 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2749 struct ieee80211_supported_band *sband = wiphy->bands[i];
2750 int j;
2751
2752 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2753 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2754 sizeof(mask->control[i].ht_mcs));
2755 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2756 mask->control[i].vht_mcs,
2757 sizeof(mask->control[i].vht_mcs));
2758
2759 sdata->rc_has_mcs_mask[i] = false;
2760 sdata->rc_has_vht_mcs_mask[i] = false;
2761 if (!sband)
2762 continue;
2763
2764 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2765 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2766 sdata->rc_has_mcs_mask[i] = true;
2767 break;
2768 }
2769 }
2770
2771 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2772 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2773 sdata->rc_has_vht_mcs_mask[i] = true;
2774 break;
2775 }
2776 }
2777 }
2778
2779 return 0;
2780 }
2781
2782 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2783 struct net_device *dev,
2784 struct cfg80211_chan_def *chandef,
2785 u32 cac_time_ms)
2786 {
2787 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2788 struct ieee80211_local *local = sdata->local;
2789 int err;
2790
2791 mutex_lock(&local->mtx);
2792 if (!list_empty(&local->roc_list) || local->scanning) {
2793 err = -EBUSY;
2794 goto out_unlock;
2795 }
2796
2797 /* whatever, but channel contexts should not complain about that one */
2798 sdata->smps_mode = IEEE80211_SMPS_OFF;
2799 sdata->needed_rx_chains = local->rx_chains;
2800
2801 err = ieee80211_vif_use_channel(sdata, chandef,
2802 IEEE80211_CHANCTX_SHARED);
2803 if (err)
2804 goto out_unlock;
2805
2806 ieee80211_queue_delayed_work(&sdata->local->hw,
2807 &sdata->dfs_cac_timer_work,
2808 msecs_to_jiffies(cac_time_ms));
2809
2810 out_unlock:
2811 mutex_unlock(&local->mtx);
2812 return err;
2813 }
2814
2815 static struct cfg80211_beacon_data *
2816 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2817 {
2818 struct cfg80211_beacon_data *new_beacon;
2819 u8 *pos;
2820 int len;
2821
2822 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2823 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2824 beacon->probe_resp_len;
2825
2826 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2827 if (!new_beacon)
2828 return NULL;
2829
2830 pos = (u8 *)(new_beacon + 1);
2831 if (beacon->head_len) {
2832 new_beacon->head_len = beacon->head_len;
2833 new_beacon->head = pos;
2834 memcpy(pos, beacon->head, beacon->head_len);
2835 pos += beacon->head_len;
2836 }
2837 if (beacon->tail_len) {
2838 new_beacon->tail_len = beacon->tail_len;
2839 new_beacon->tail = pos;
2840 memcpy(pos, beacon->tail, beacon->tail_len);
2841 pos += beacon->tail_len;
2842 }
2843 if (beacon->beacon_ies_len) {
2844 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2845 new_beacon->beacon_ies = pos;
2846 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2847 pos += beacon->beacon_ies_len;
2848 }
2849 if (beacon->proberesp_ies_len) {
2850 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2851 new_beacon->proberesp_ies = pos;
2852 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2853 pos += beacon->proberesp_ies_len;
2854 }
2855 if (beacon->assocresp_ies_len) {
2856 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2857 new_beacon->assocresp_ies = pos;
2858 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2859 pos += beacon->assocresp_ies_len;
2860 }
2861 if (beacon->probe_resp_len) {
2862 new_beacon->probe_resp_len = beacon->probe_resp_len;
2863 beacon->probe_resp = pos;
2864 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2865 pos += beacon->probe_resp_len;
2866 }
2867
2868 return new_beacon;
2869 }
2870
2871 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2872 {
2873 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2874
2875 ieee80211_queue_work(&sdata->local->hw,
2876 &sdata->csa_finalize_work);
2877 }
2878 EXPORT_SYMBOL(ieee80211_csa_finish);
2879
2880 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2881 u32 *changed)
2882 {
2883 int err;
2884
2885 switch (sdata->vif.type) {
2886 case NL80211_IFTYPE_AP:
2887 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2888 NULL);
2889 kfree(sdata->u.ap.next_beacon);
2890 sdata->u.ap.next_beacon = NULL;
2891
2892 if (err < 0)
2893 return err;
2894 *changed |= err;
2895 break;
2896 case NL80211_IFTYPE_ADHOC:
2897 err = ieee80211_ibss_finish_csa(sdata);
2898 if (err < 0)
2899 return err;
2900 *changed |= err;
2901 break;
2902 #ifdef CONFIG_MAC80211_MESH
2903 case NL80211_IFTYPE_MESH_POINT:
2904 err = ieee80211_mesh_finish_csa(sdata);
2905 if (err < 0)
2906 return err;
2907 *changed |= err;
2908 break;
2909 #endif
2910 default:
2911 WARN_ON(1);
2912 return -EINVAL;
2913 }
2914
2915 return 0;
2916 }
2917
2918 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2919 {
2920 struct ieee80211_local *local = sdata->local;
2921 u32 changed = 0;
2922 int err;
2923
2924 sdata_assert_lock(sdata);
2925 lockdep_assert_held(&local->mtx);
2926 lockdep_assert_held(&local->chanctx_mtx);
2927
2928 /*
2929 * using reservation isn't immediate as it may be deferred until later
2930 * with multi-vif. once reservation is complete it will re-schedule the
2931 * work with no reserved_chanctx so verify chandef to check if it
2932 * completed successfully
2933 */
2934
2935 if (sdata->reserved_chanctx) {
2936 /*
2937 * with multi-vif csa driver may call ieee80211_csa_finish()
2938 * many times while waiting for other interfaces to use their
2939 * reservations
2940 */
2941 if (sdata->reserved_ready)
2942 return 0;
2943
2944 return ieee80211_vif_use_reserved_context(sdata);
2945 }
2946
2947 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2948 &sdata->csa_chandef))
2949 return -EINVAL;
2950
2951 sdata->vif.csa_active = false;
2952
2953 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2954 if (err)
2955 return err;
2956
2957 ieee80211_bss_info_change_notify(sdata, changed);
2958
2959 if (sdata->csa_block_tx) {
2960 ieee80211_wake_vif_queues(local, sdata,
2961 IEEE80211_QUEUE_STOP_REASON_CSA);
2962 sdata->csa_block_tx = false;
2963 }
2964
2965 err = drv_post_channel_switch(sdata);
2966 if (err)
2967 return err;
2968
2969 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2970
2971 return 0;
2972 }
2973
2974 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2975 {
2976 if (__ieee80211_csa_finalize(sdata)) {
2977 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2978 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2979 GFP_KERNEL);
2980 }
2981 }
2982
2983 void ieee80211_csa_finalize_work(struct work_struct *work)
2984 {
2985 struct ieee80211_sub_if_data *sdata =
2986 container_of(work, struct ieee80211_sub_if_data,
2987 csa_finalize_work);
2988 struct ieee80211_local *local = sdata->local;
2989
2990 sdata_lock(sdata);
2991 mutex_lock(&local->mtx);
2992 mutex_lock(&local->chanctx_mtx);
2993
2994 /* AP might have been stopped while waiting for the lock. */
2995 if (!sdata->vif.csa_active)
2996 goto unlock;
2997
2998 if (!ieee80211_sdata_running(sdata))
2999 goto unlock;
3000
3001 ieee80211_csa_finalize(sdata);
3002
3003 unlock:
3004 mutex_unlock(&local->chanctx_mtx);
3005 mutex_unlock(&local->mtx);
3006 sdata_unlock(sdata);
3007 }
3008
3009 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3010 struct cfg80211_csa_settings *params,
3011 u32 *changed)
3012 {
3013 struct ieee80211_csa_settings csa = {};
3014 int err;
3015
3016 switch (sdata->vif.type) {
3017 case NL80211_IFTYPE_AP:
3018 sdata->u.ap.next_beacon =
3019 cfg80211_beacon_dup(&params->beacon_after);
3020 if (!sdata->u.ap.next_beacon)
3021 return -ENOMEM;
3022
3023 /*
3024 * With a count of 0, we don't have to wait for any
3025 * TBTT before switching, so complete the CSA
3026 * immediately. In theory, with a count == 1 we
3027 * should delay the switch until just before the next
3028 * TBTT, but that would complicate things so we switch
3029 * immediately too. If we would delay the switch
3030 * until the next TBTT, we would have to set the probe
3031 * response here.
3032 *
3033 * TODO: A channel switch with count <= 1 without
3034 * sending a CSA action frame is kind of useless,
3035 * because the clients won't know we're changing
3036 * channels. The action frame must be implemented
3037 * either here or in the userspace.
3038 */
3039 if (params->count <= 1)
3040 break;
3041
3042 if ((params->n_counter_offsets_beacon >
3043 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3044 (params->n_counter_offsets_presp >
3045 IEEE80211_MAX_CSA_COUNTERS_NUM))
3046 return -EINVAL;
3047
3048 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3049 csa.counter_offsets_presp = params->counter_offsets_presp;
3050 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3051 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3052 csa.count = params->count;
3053
3054 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3055 if (err < 0) {
3056 kfree(sdata->u.ap.next_beacon);
3057 return err;
3058 }
3059 *changed |= err;
3060
3061 break;
3062 case NL80211_IFTYPE_ADHOC:
3063 if (!sdata->vif.bss_conf.ibss_joined)
3064 return -EINVAL;
3065
3066 if (params->chandef.width != sdata->u.ibss.chandef.width)
3067 return -EINVAL;
3068
3069 switch (params->chandef.width) {
3070 case NL80211_CHAN_WIDTH_40:
3071 if (cfg80211_get_chandef_type(&params->chandef) !=
3072 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3073 return -EINVAL;
3074 case NL80211_CHAN_WIDTH_5:
3075 case NL80211_CHAN_WIDTH_10:
3076 case NL80211_CHAN_WIDTH_20_NOHT:
3077 case NL80211_CHAN_WIDTH_20:
3078 break;
3079 default:
3080 return -EINVAL;
3081 }
3082
3083 /* changes into another band are not supported */
3084 if (sdata->u.ibss.chandef.chan->band !=
3085 params->chandef.chan->band)
3086 return -EINVAL;
3087
3088 /* see comments in the NL80211_IFTYPE_AP block */
3089 if (params->count > 1) {
3090 err = ieee80211_ibss_csa_beacon(sdata, params);
3091 if (err < 0)
3092 return err;
3093 *changed |= err;
3094 }
3095
3096 ieee80211_send_action_csa(sdata, params);
3097
3098 break;
3099 #ifdef CONFIG_MAC80211_MESH
3100 case NL80211_IFTYPE_MESH_POINT: {
3101 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3102
3103 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3104 return -EINVAL;
3105
3106 /* changes into another band are not supported */
3107 if (sdata->vif.bss_conf.chandef.chan->band !=
3108 params->chandef.chan->band)
3109 return -EINVAL;
3110
3111 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3112 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3113 if (!ifmsh->pre_value)
3114 ifmsh->pre_value = 1;
3115 else
3116 ifmsh->pre_value++;
3117 }
3118
3119 /* see comments in the NL80211_IFTYPE_AP block */
3120 if (params->count > 1) {
3121 err = ieee80211_mesh_csa_beacon(sdata, params);
3122 if (err < 0) {
3123 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3124 return err;
3125 }
3126 *changed |= err;
3127 }
3128
3129 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3130 ieee80211_send_action_csa(sdata, params);
3131
3132 break;
3133 }
3134 #endif
3135 default:
3136 return -EOPNOTSUPP;
3137 }
3138
3139 return 0;
3140 }
3141
3142 static int
3143 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3144 struct cfg80211_csa_settings *params)
3145 {
3146 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3147 struct ieee80211_local *local = sdata->local;
3148 struct ieee80211_channel_switch ch_switch;
3149 struct ieee80211_chanctx_conf *conf;
3150 struct ieee80211_chanctx *chanctx;
3151 u32 changed = 0;
3152 int err;
3153
3154 sdata_assert_lock(sdata);
3155 lockdep_assert_held(&local->mtx);
3156
3157 if (!list_empty(&local->roc_list) || local->scanning)
3158 return -EBUSY;
3159
3160 if (sdata->wdev.cac_started)
3161 return -EBUSY;
3162
3163 if (cfg80211_chandef_identical(&params->chandef,
3164 &sdata->vif.bss_conf.chandef))
3165 return -EINVAL;
3166
3167 /* don't allow another channel switch if one is already active. */
3168 if (sdata->vif.csa_active)
3169 return -EBUSY;
3170
3171 mutex_lock(&local->chanctx_mtx);
3172 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3173 lockdep_is_held(&local->chanctx_mtx));
3174 if (!conf) {
3175 err = -EBUSY;
3176 goto out;
3177 }
3178
3179 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3180
3181 ch_switch.timestamp = 0;
3182 ch_switch.device_timestamp = 0;
3183 ch_switch.block_tx = params->block_tx;
3184 ch_switch.chandef = params->chandef;
3185 ch_switch.count = params->count;
3186
3187 err = drv_pre_channel_switch(sdata, &ch_switch);
3188 if (err)
3189 goto out;
3190
3191 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3192 chanctx->mode,
3193 params->radar_required);
3194 if (err)
3195 goto out;
3196
3197 /* if reservation is invalid then this will fail */
3198 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3199 if (err) {
3200 ieee80211_vif_unreserve_chanctx(sdata);
3201 goto out;
3202 }
3203
3204 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3205 if (err) {
3206 ieee80211_vif_unreserve_chanctx(sdata);
3207 goto out;
3208 }
3209
3210 sdata->csa_chandef = params->chandef;
3211 sdata->csa_block_tx = params->block_tx;
3212 sdata->vif.csa_active = true;
3213
3214 if (sdata->csa_block_tx)
3215 ieee80211_stop_vif_queues(local, sdata,
3216 IEEE80211_QUEUE_STOP_REASON_CSA);
3217
3218 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3219 params->count);
3220
3221 if (changed) {
3222 ieee80211_bss_info_change_notify(sdata, changed);
3223 drv_channel_switch_beacon(sdata, &params->chandef);
3224 } else {
3225 /* if the beacon didn't change, we can finalize immediately */
3226 ieee80211_csa_finalize(sdata);
3227 }
3228
3229 out:
3230 mutex_unlock(&local->chanctx_mtx);
3231 return err;
3232 }
3233
3234 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3235 struct cfg80211_csa_settings *params)
3236 {
3237 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3238 struct ieee80211_local *local = sdata->local;
3239 int err;
3240
3241 mutex_lock(&local->mtx);
3242 err = __ieee80211_channel_switch(wiphy, dev, params);
3243 mutex_unlock(&local->mtx);
3244
3245 return err;
3246 }
3247
3248 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3249 {
3250 lockdep_assert_held(&local->mtx);
3251
3252 local->roc_cookie_counter++;
3253
3254 /* wow, you wrapped 64 bits ... more likely a bug */
3255 if (WARN_ON(local->roc_cookie_counter == 0))
3256 local->roc_cookie_counter++;
3257
3258 return local->roc_cookie_counter;
3259 }
3260
3261 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3262 u64 *cookie, gfp_t gfp)
3263 {
3264 unsigned long spin_flags;
3265 struct sk_buff *ack_skb;
3266 int id;
3267
3268 ack_skb = skb_copy(skb, gfp);
3269 if (!ack_skb)
3270 return -ENOMEM;
3271
3272 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3273 id = idr_alloc(&local->ack_status_frames, ack_skb,
3274 1, 0x10000, GFP_ATOMIC);
3275 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3276
3277 if (id < 0) {
3278 kfree_skb(ack_skb);
3279 return -ENOMEM;
3280 }
3281
3282 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3283
3284 *cookie = ieee80211_mgmt_tx_cookie(local);
3285 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3286
3287 return 0;
3288 }
3289
3290 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3291 struct wireless_dev *wdev,
3292 u16 frame_type, bool reg)
3293 {
3294 struct ieee80211_local *local = wiphy_priv(wiphy);
3295 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3296
3297 switch (frame_type) {
3298 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3299 if (reg) {
3300 local->probe_req_reg++;
3301 sdata->vif.probe_req_reg++;
3302 } else {
3303 if (local->probe_req_reg)
3304 local->probe_req_reg--;
3305
3306 if (sdata->vif.probe_req_reg)
3307 sdata->vif.probe_req_reg--;
3308 }
3309
3310 if (!local->open_count)
3311 break;
3312
3313 if (sdata->vif.probe_req_reg == 1)
3314 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3315 FIF_PROBE_REQ);
3316 else if (sdata->vif.probe_req_reg == 0)
3317 drv_config_iface_filter(local, sdata, 0,
3318 FIF_PROBE_REQ);
3319
3320 ieee80211_configure_filter(local);
3321 break;
3322 default:
3323 break;
3324 }
3325 }
3326
3327 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3328 {
3329 struct ieee80211_local *local = wiphy_priv(wiphy);
3330
3331 if (local->started)
3332 return -EOPNOTSUPP;
3333
3334 return drv_set_antenna(local, tx_ant, rx_ant);
3335 }
3336
3337 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3338 {
3339 struct ieee80211_local *local = wiphy_priv(wiphy);
3340
3341 return drv_get_antenna(local, tx_ant, rx_ant);
3342 }
3343
3344 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3345 struct net_device *dev,
3346 struct cfg80211_gtk_rekey_data *data)
3347 {
3348 struct ieee80211_local *local = wiphy_priv(wiphy);
3349 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3350
3351 if (!local->ops->set_rekey_data)
3352 return -EOPNOTSUPP;
3353
3354 drv_set_rekey_data(local, sdata, data);
3355
3356 return 0;
3357 }
3358
3359 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3360 const u8 *peer, u64 *cookie)
3361 {
3362 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3363 struct ieee80211_local *local = sdata->local;
3364 struct ieee80211_qos_hdr *nullfunc;
3365 struct sk_buff *skb;
3366 int size = sizeof(*nullfunc);
3367 __le16 fc;
3368 bool qos;
3369 struct ieee80211_tx_info *info;
3370 struct sta_info *sta;
3371 struct ieee80211_chanctx_conf *chanctx_conf;
3372 enum nl80211_band band;
3373 int ret;
3374
3375 /* the lock is needed to assign the cookie later */
3376 mutex_lock(&local->mtx);
3377
3378 rcu_read_lock();
3379 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3380 if (WARN_ON(!chanctx_conf)) {
3381 ret = -EINVAL;
3382 goto unlock;
3383 }
3384 band = chanctx_conf->def.chan->band;
3385 sta = sta_info_get_bss(sdata, peer);
3386 if (sta) {
3387 qos = sta->sta.wme;
3388 } else {
3389 ret = -ENOLINK;
3390 goto unlock;
3391 }
3392
3393 if (qos) {
3394 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3395 IEEE80211_STYPE_QOS_NULLFUNC |
3396 IEEE80211_FCTL_FROMDS);
3397 } else {
3398 size -= 2;
3399 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3400 IEEE80211_STYPE_NULLFUNC |
3401 IEEE80211_FCTL_FROMDS);
3402 }
3403
3404 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3405 if (!skb) {
3406 ret = -ENOMEM;
3407 goto unlock;
3408 }
3409
3410 skb->dev = dev;
3411
3412 skb_reserve(skb, local->hw.extra_tx_headroom);
3413
3414 nullfunc = (void *) skb_put(skb, size);
3415 nullfunc->frame_control = fc;
3416 nullfunc->duration_id = 0;
3417 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3418 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3419 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3420 nullfunc->seq_ctrl = 0;
3421
3422 info = IEEE80211_SKB_CB(skb);
3423
3424 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3425 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3426 info->band = band;
3427
3428 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3429 skb->priority = 7;
3430 if (qos)
3431 nullfunc->qos_ctrl = cpu_to_le16(7);
3432
3433 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3434 if (ret) {
3435 kfree_skb(skb);
3436 goto unlock;
3437 }
3438
3439 local_bh_disable();
3440 ieee80211_xmit(sdata, sta, skb);
3441 local_bh_enable();
3442
3443 ret = 0;
3444 unlock:
3445 rcu_read_unlock();
3446 mutex_unlock(&local->mtx);
3447
3448 return ret;
3449 }
3450
3451 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3452 struct wireless_dev *wdev,
3453 struct cfg80211_chan_def *chandef)
3454 {
3455 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3456 struct ieee80211_local *local = wiphy_priv(wiphy);
3457 struct ieee80211_chanctx_conf *chanctx_conf;
3458 int ret = -ENODATA;
3459
3460 rcu_read_lock();
3461 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3462 if (chanctx_conf) {
3463 *chandef = sdata->vif.bss_conf.chandef;
3464 ret = 0;
3465 } else if (local->open_count > 0 &&
3466 local->open_count == local->monitors &&
3467 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3468 if (local->use_chanctx)
3469 *chandef = local->monitor_chandef;
3470 else
3471 *chandef = local->_oper_chandef;
3472 ret = 0;
3473 }
3474 rcu_read_unlock();
3475
3476 return ret;
3477 }
3478
3479 #ifdef CONFIG_PM
3480 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3481 {
3482 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3483 }
3484 #endif
3485
3486 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3487 struct net_device *dev,
3488 struct cfg80211_qos_map *qos_map)
3489 {
3490 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3491 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3492
3493 if (qos_map) {
3494 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3495 if (!new_qos_map)
3496 return -ENOMEM;
3497 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3498 } else {
3499 /* A NULL qos_map was passed to disable QoS mapping */
3500 new_qos_map = NULL;
3501 }
3502
3503 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3504 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3505 if (old_qos_map)
3506 kfree_rcu(old_qos_map, rcu_head);
3507
3508 return 0;
3509 }
3510
3511 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3512 struct net_device *dev,
3513 struct cfg80211_chan_def *chandef)
3514 {
3515 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3516 int ret;
3517 u32 changed = 0;
3518
3519 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3520 if (ret == 0)
3521 ieee80211_bss_info_change_notify(sdata, changed);
3522
3523 return ret;
3524 }
3525
3526 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3527 u8 tsid, const u8 *peer, u8 up,
3528 u16 admitted_time)
3529 {
3530 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3531 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3532 int ac = ieee802_1d_to_ac[up];
3533
3534 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3535 return -EOPNOTSUPP;
3536
3537 if (!(sdata->wmm_acm & BIT(up)))
3538 return -EINVAL;
3539
3540 if (ifmgd->tx_tspec[ac].admitted_time)
3541 return -EBUSY;
3542
3543 if (admitted_time) {
3544 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3545 ifmgd->tx_tspec[ac].tsid = tsid;
3546 ifmgd->tx_tspec[ac].up = up;
3547 }
3548
3549 return 0;
3550 }
3551
3552 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3553 u8 tsid, const u8 *peer)
3554 {
3555 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3556 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3557 struct ieee80211_local *local = wiphy_priv(wiphy);
3558 int ac;
3559
3560 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3561 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3562
3563 /* skip unused entries */
3564 if (!tx_tspec->admitted_time)
3565 continue;
3566
3567 if (tx_tspec->tsid != tsid)
3568 continue;
3569
3570 /* due to this new packets will be reassigned to non-ACM ACs */
3571 tx_tspec->up = -1;
3572
3573 /* Make sure that all packets have been sent to avoid to
3574 * restore the QoS params on packets that are still on the
3575 * queues.
3576 */
3577 synchronize_net();
3578 ieee80211_flush_queues(local, sdata, false);
3579
3580 /* restore the normal QoS parameters
3581 * (unconditionally to avoid races)
3582 */
3583 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3584 tx_tspec->downgraded = false;
3585 ieee80211_sta_handle_tspec_ac_params(sdata);
3586
3587 /* finally clear all the data */
3588 memset(tx_tspec, 0, sizeof(*tx_tspec));
3589
3590 return 0;
3591 }
3592
3593 return -ENOENT;
3594 }
3595
3596 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3597 u8 inst_id,
3598 enum nl80211_nan_func_term_reason reason,
3599 gfp_t gfp)
3600 {
3601 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3602 struct cfg80211_nan_func *func;
3603 u64 cookie;
3604
3605 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3606 return;
3607
3608 spin_lock_bh(&sdata->u.nan.func_lock);
3609
3610 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3611 if (WARN_ON(!func)) {
3612 spin_unlock_bh(&sdata->u.nan.func_lock);
3613 return;
3614 }
3615
3616 cookie = func->cookie;
3617 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3618
3619 spin_unlock_bh(&sdata->u.nan.func_lock);
3620
3621 cfg80211_free_nan_func(func);
3622
3623 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3624 reason, cookie, gfp);
3625 }
3626 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3627
3628 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3629 struct cfg80211_nan_match_params *match,
3630 gfp_t gfp)
3631 {
3632 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3633 struct cfg80211_nan_func *func;
3634
3635 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3636 return;
3637
3638 spin_lock_bh(&sdata->u.nan.func_lock);
3639
3640 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3641 if (WARN_ON(!func)) {
3642 spin_unlock_bh(&sdata->u.nan.func_lock);
3643 return;
3644 }
3645 match->cookie = func->cookie;
3646
3647 spin_unlock_bh(&sdata->u.nan.func_lock);
3648
3649 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3650 }
3651 EXPORT_SYMBOL(ieee80211_nan_func_match);
3652
3653 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3654 struct net_device *dev,
3655 const bool enabled)
3656 {
3657 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3658
3659 sdata->u.ap.multicast_to_unicast = enabled;
3660
3661 return 0;
3662 }
3663
3664 const struct cfg80211_ops mac80211_config_ops = {
3665 .add_virtual_intf = ieee80211_add_iface,
3666 .del_virtual_intf = ieee80211_del_iface,
3667 .change_virtual_intf = ieee80211_change_iface,
3668 .start_p2p_device = ieee80211_start_p2p_device,
3669 .stop_p2p_device = ieee80211_stop_p2p_device,
3670 .add_key = ieee80211_add_key,
3671 .del_key = ieee80211_del_key,
3672 .get_key = ieee80211_get_key,
3673 .set_default_key = ieee80211_config_default_key,
3674 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3675 .start_ap = ieee80211_start_ap,
3676 .change_beacon = ieee80211_change_beacon,
3677 .stop_ap = ieee80211_stop_ap,
3678 .add_station = ieee80211_add_station,
3679 .del_station = ieee80211_del_station,
3680 .change_station = ieee80211_change_station,
3681 .get_station = ieee80211_get_station,
3682 .dump_station = ieee80211_dump_station,
3683 .dump_survey = ieee80211_dump_survey,
3684 #ifdef CONFIG_MAC80211_MESH
3685 .add_mpath = ieee80211_add_mpath,
3686 .del_mpath = ieee80211_del_mpath,
3687 .change_mpath = ieee80211_change_mpath,
3688 .get_mpath = ieee80211_get_mpath,
3689 .dump_mpath = ieee80211_dump_mpath,
3690 .get_mpp = ieee80211_get_mpp,
3691 .dump_mpp = ieee80211_dump_mpp,
3692 .update_mesh_config = ieee80211_update_mesh_config,
3693 .get_mesh_config = ieee80211_get_mesh_config,
3694 .join_mesh = ieee80211_join_mesh,
3695 .leave_mesh = ieee80211_leave_mesh,
3696 #endif
3697 .join_ocb = ieee80211_join_ocb,
3698 .leave_ocb = ieee80211_leave_ocb,
3699 .change_bss = ieee80211_change_bss,
3700 .set_txq_params = ieee80211_set_txq_params,
3701 .set_monitor_channel = ieee80211_set_monitor_channel,
3702 .suspend = ieee80211_suspend,
3703 .resume = ieee80211_resume,
3704 .scan = ieee80211_scan,
3705 .abort_scan = ieee80211_abort_scan,
3706 .sched_scan_start = ieee80211_sched_scan_start,
3707 .sched_scan_stop = ieee80211_sched_scan_stop,
3708 .auth = ieee80211_auth,
3709 .assoc = ieee80211_assoc,
3710 .deauth = ieee80211_deauth,
3711 .disassoc = ieee80211_disassoc,
3712 .join_ibss = ieee80211_join_ibss,
3713 .leave_ibss = ieee80211_leave_ibss,
3714 .set_mcast_rate = ieee80211_set_mcast_rate,
3715 .set_wiphy_params = ieee80211_set_wiphy_params,
3716 .set_tx_power = ieee80211_set_tx_power,
3717 .get_tx_power = ieee80211_get_tx_power,
3718 .set_wds_peer = ieee80211_set_wds_peer,
3719 .rfkill_poll = ieee80211_rfkill_poll,
3720 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3721 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3722 .set_power_mgmt = ieee80211_set_power_mgmt,
3723 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3724 .remain_on_channel = ieee80211_remain_on_channel,
3725 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3726 .mgmt_tx = ieee80211_mgmt_tx,
3727 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3728 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3729 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
3730 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3731 .set_antenna = ieee80211_set_antenna,
3732 .get_antenna = ieee80211_get_antenna,
3733 .set_rekey_data = ieee80211_set_rekey_data,
3734 .tdls_oper = ieee80211_tdls_oper,
3735 .tdls_mgmt = ieee80211_tdls_mgmt,
3736 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3737 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3738 .probe_client = ieee80211_probe_client,
3739 .set_noack_map = ieee80211_set_noack_map,
3740 #ifdef CONFIG_PM
3741 .set_wakeup = ieee80211_set_wakeup,
3742 #endif
3743 .get_channel = ieee80211_cfg_get_channel,
3744 .start_radar_detection = ieee80211_start_radar_detection,
3745 .channel_switch = ieee80211_channel_switch,
3746 .set_qos_map = ieee80211_set_qos_map,
3747 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3748 .add_tx_ts = ieee80211_add_tx_ts,
3749 .del_tx_ts = ieee80211_del_tx_ts,
3750 .start_nan = ieee80211_start_nan,
3751 .stop_nan = ieee80211_stop_nan,
3752 .nan_change_conf = ieee80211_nan_change_conf,
3753 .add_nan_func = ieee80211_add_nan_func,
3754 .del_nan_func = ieee80211_del_nan_func,
3755 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
3756 };
Linux with added FPC-III support