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UBUNTU: Ubuntu-raspi2-4.13.0-1014.15
[mirror_ubuntu-artful-kernel.git] / net / mac80211 / cfg.c
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->u.ap.req_smps = sdata->smps_mode;
906
907 sdata->needed_rx_chains = sdata->local->rx_chains;
908
909 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
910
911 mutex_lock(&local->mtx);
912 err = ieee80211_vif_use_channel(sdata, &params->chandef,
913 IEEE80211_CHANCTX_SHARED);
914 if (!err)
915 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
916 mutex_unlock(&local->mtx);
917 if (err)
918 return err;
919
920 /*
921 * Apply control port protocol, this allows us to
922 * not encrypt dynamic WEP control frames.
923 */
924 sdata->control_port_protocol = params->crypto.control_port_ethertype;
925 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
926 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
927 &params->crypto,
928 sdata->vif.type);
929
930 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
931 vlan->control_port_protocol =
932 params->crypto.control_port_ethertype;
933 vlan->control_port_no_encrypt =
934 params->crypto.control_port_no_encrypt;
935 vlan->encrypt_headroom =
936 ieee80211_cs_headroom(sdata->local,
937 &params->crypto,
938 vlan->vif.type);
939 }
940
941 sdata->vif.bss_conf.dtim_period = params->dtim_period;
942 sdata->vif.bss_conf.enable_beacon = true;
943 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
944
945 sdata->vif.bss_conf.ssid_len = params->ssid_len;
946 if (params->ssid_len)
947 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
948 params->ssid_len);
949 sdata->vif.bss_conf.hidden_ssid =
950 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
951
952 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
953 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
954 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
955 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
956 if (params->p2p_opp_ps)
957 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
958 IEEE80211_P2P_OPPPS_ENABLE_BIT;
959
960 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
961 if (err < 0) {
962 ieee80211_vif_release_channel(sdata);
963 return err;
964 }
965 changed |= err;
966
967 err = drv_start_ap(sdata->local, sdata);
968 if (err) {
969 old = sdata_dereference(sdata->u.ap.beacon, sdata);
970
971 if (old)
972 kfree_rcu(old, rcu_head);
973 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
974 ieee80211_vif_release_channel(sdata);
975 return err;
976 }
977
978 ieee80211_recalc_dtim(local, sdata);
979 ieee80211_bss_info_change_notify(sdata, changed);
980
981 netif_carrier_on(dev);
982 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
983 netif_carrier_on(vlan->dev);
984
985 return 0;
986 }
987
988 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
989 struct cfg80211_beacon_data *params)
990 {
991 struct ieee80211_sub_if_data *sdata;
992 struct beacon_data *old;
993 int err;
994
995 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
996 sdata_assert_lock(sdata);
997
998 /* don't allow changing the beacon while CSA is in place - offset
999 * of channel switch counter may change
1000 */
1001 if (sdata->vif.csa_active)
1002 return -EBUSY;
1003
1004 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1005 if (!old)
1006 return -ENOENT;
1007
1008 err = ieee80211_assign_beacon(sdata, params, NULL);
1009 if (err < 0)
1010 return err;
1011 ieee80211_bss_info_change_notify(sdata, err);
1012 return 0;
1013 }
1014
1015 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1016 {
1017 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1018 struct ieee80211_sub_if_data *vlan;
1019 struct ieee80211_local *local = sdata->local;
1020 struct beacon_data *old_beacon;
1021 struct probe_resp *old_probe_resp;
1022 struct cfg80211_chan_def chandef;
1023
1024 sdata_assert_lock(sdata);
1025
1026 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1027 if (!old_beacon)
1028 return -ENOENT;
1029 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1030
1031 /* abort any running channel switch */
1032 mutex_lock(&local->mtx);
1033 sdata->vif.csa_active = false;
1034 if (sdata->csa_block_tx) {
1035 ieee80211_wake_vif_queues(local, sdata,
1036 IEEE80211_QUEUE_STOP_REASON_CSA);
1037 sdata->csa_block_tx = false;
1038 }
1039
1040 mutex_unlock(&local->mtx);
1041
1042 kfree(sdata->u.ap.next_beacon);
1043 sdata->u.ap.next_beacon = NULL;
1044
1045 /* turn off carrier for this interface and dependent VLANs */
1046 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1047 netif_carrier_off(vlan->dev);
1048 netif_carrier_off(dev);
1049
1050 /* remove beacon and probe response */
1051 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1052 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1053 kfree_rcu(old_beacon, rcu_head);
1054 if (old_probe_resp)
1055 kfree_rcu(old_probe_resp, rcu_head);
1056 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1057
1058 __sta_info_flush(sdata, true);
1059 ieee80211_free_keys(sdata, true);
1060
1061 sdata->vif.bss_conf.enable_beacon = false;
1062 sdata->vif.bss_conf.ssid_len = 0;
1063 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1064 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1065
1066 if (sdata->wdev.cac_started) {
1067 chandef = sdata->vif.bss_conf.chandef;
1068 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1069 cfg80211_cac_event(sdata->dev, &chandef,
1070 NL80211_RADAR_CAC_ABORTED,
1071 GFP_KERNEL);
1072 }
1073
1074 drv_stop_ap(sdata->local, sdata);
1075
1076 /* free all potentially still buffered bcast frames */
1077 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1078 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1079
1080 mutex_lock(&local->mtx);
1081 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1082 ieee80211_vif_release_channel(sdata);
1083 mutex_unlock(&local->mtx);
1084
1085 return 0;
1086 }
1087
1088 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1089 struct iapp_layer2_update {
1090 u8 da[ETH_ALEN]; /* broadcast */
1091 u8 sa[ETH_ALEN]; /* STA addr */
1092 __be16 len; /* 6 */
1093 u8 dsap; /* 0 */
1094 u8 ssap; /* 0 */
1095 u8 control;
1096 u8 xid_info[3];
1097 } __packed;
1098
1099 static void ieee80211_send_layer2_update(struct sta_info *sta)
1100 {
1101 struct iapp_layer2_update *msg;
1102 struct sk_buff *skb;
1103
1104 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1105 * bridge devices */
1106
1107 skb = dev_alloc_skb(sizeof(*msg));
1108 if (!skb)
1109 return;
1110 msg = skb_put(skb, sizeof(*msg));
1111
1112 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1113 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1114
1115 eth_broadcast_addr(msg->da);
1116 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1117 msg->len = htons(6);
1118 msg->dsap = 0;
1119 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1120 msg->control = 0xaf; /* XID response lsb.1111F101.
1121 * F=0 (no poll command; unsolicited frame) */
1122 msg->xid_info[0] = 0x81; /* XID format identifier */
1123 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1124 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1125
1126 skb->dev = sta->sdata->dev;
1127 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1128 memset(skb->cb, 0, sizeof(skb->cb));
1129 netif_rx_ni(skb);
1130 }
1131
1132 static int sta_apply_auth_flags(struct ieee80211_local *local,
1133 struct sta_info *sta,
1134 u32 mask, u32 set)
1135 {
1136 int ret;
1137
1138 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1139 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1140 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1141 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1142 if (ret)
1143 return ret;
1144 }
1145
1146 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1147 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1148 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1149 /*
1150 * When peer becomes associated, init rate control as
1151 * well. Some drivers require rate control initialized
1152 * before drv_sta_state() is called.
1153 */
1154 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1155 rate_control_rate_init(sta);
1156
1157 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1158 if (ret)
1159 return ret;
1160 }
1161
1162 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1163 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1164 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1165 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1166 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1167 else
1168 ret = 0;
1169 if (ret)
1170 return ret;
1171 }
1172
1173 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1174 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1175 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1176 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1177 if (ret)
1178 return ret;
1179 }
1180
1181 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1182 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1183 test_sta_flag(sta, WLAN_STA_AUTH)) {
1184 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1185 if (ret)
1186 return ret;
1187 }
1188
1189 return 0;
1190 }
1191
1192 static void sta_apply_mesh_params(struct ieee80211_local *local,
1193 struct sta_info *sta,
1194 struct station_parameters *params)
1195 {
1196 #ifdef CONFIG_MAC80211_MESH
1197 struct ieee80211_sub_if_data *sdata = sta->sdata;
1198 u32 changed = 0;
1199
1200 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1201 switch (params->plink_state) {
1202 case NL80211_PLINK_ESTAB:
1203 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1204 changed = mesh_plink_inc_estab_count(sdata);
1205 sta->mesh->plink_state = params->plink_state;
1206 sta->mesh->aid = params->peer_aid;
1207
1208 ieee80211_mps_sta_status_update(sta);
1209 changed |= ieee80211_mps_set_sta_local_pm(sta,
1210 sdata->u.mesh.mshcfg.power_mode);
1211 break;
1212 case NL80211_PLINK_LISTEN:
1213 case NL80211_PLINK_BLOCKED:
1214 case NL80211_PLINK_OPN_SNT:
1215 case NL80211_PLINK_OPN_RCVD:
1216 case NL80211_PLINK_CNF_RCVD:
1217 case NL80211_PLINK_HOLDING:
1218 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1219 changed = mesh_plink_dec_estab_count(sdata);
1220 sta->mesh->plink_state = params->plink_state;
1221
1222 ieee80211_mps_sta_status_update(sta);
1223 changed |= ieee80211_mps_set_sta_local_pm(sta,
1224 NL80211_MESH_POWER_UNKNOWN);
1225 break;
1226 default:
1227 /* nothing */
1228 break;
1229 }
1230 }
1231
1232 switch (params->plink_action) {
1233 case NL80211_PLINK_ACTION_NO_ACTION:
1234 /* nothing */
1235 break;
1236 case NL80211_PLINK_ACTION_OPEN:
1237 changed |= mesh_plink_open(sta);
1238 break;
1239 case NL80211_PLINK_ACTION_BLOCK:
1240 changed |= mesh_plink_block(sta);
1241 break;
1242 }
1243
1244 if (params->local_pm)
1245 changed |= ieee80211_mps_set_sta_local_pm(sta,
1246 params->local_pm);
1247
1248 ieee80211_mbss_info_change_notify(sdata, changed);
1249 #endif
1250 }
1251
1252 static int sta_apply_parameters(struct ieee80211_local *local,
1253 struct sta_info *sta,
1254 struct station_parameters *params)
1255 {
1256 int ret = 0;
1257 struct ieee80211_supported_band *sband;
1258 struct ieee80211_sub_if_data *sdata = sta->sdata;
1259 u32 mask, set;
1260
1261 sband = ieee80211_get_sband(sdata);
1262 if (!sband)
1263 return -EINVAL;
1264
1265 mask = params->sta_flags_mask;
1266 set = params->sta_flags_set;
1267
1268 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1269 /*
1270 * In mesh mode, ASSOCIATED isn't part of the nl80211
1271 * API but must follow AUTHENTICATED for driver state.
1272 */
1273 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1274 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1275 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1276 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1277 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1278 /*
1279 * TDLS -- everything follows authorized, but
1280 * only becoming authorized is possible, not
1281 * going back
1282 */
1283 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1284 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1285 BIT(NL80211_STA_FLAG_ASSOCIATED);
1286 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1287 BIT(NL80211_STA_FLAG_ASSOCIATED);
1288 }
1289 }
1290
1291 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1292 local->hw.queues >= IEEE80211_NUM_ACS)
1293 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1294
1295 /* auth flags will be set later for TDLS,
1296 * and for unassociated stations that move to assocaited */
1297 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1298 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1299 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1300 ret = sta_apply_auth_flags(local, sta, mask, set);
1301 if (ret)
1302 return ret;
1303 }
1304
1305 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1306 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1307 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1308 else
1309 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1310 }
1311
1312 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1313 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1314 if (set & BIT(NL80211_STA_FLAG_MFP))
1315 set_sta_flag(sta, WLAN_STA_MFP);
1316 else
1317 clear_sta_flag(sta, WLAN_STA_MFP);
1318 }
1319
1320 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1321 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1322 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1323 else
1324 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1325 }
1326
1327 /* mark TDLS channel switch support, if the AP allows it */
1328 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1329 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1330 params->ext_capab_len >= 4 &&
1331 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1332 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1333
1334 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1335 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1336 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1337 params->ext_capab_len >= 8 &&
1338 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1339 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1340
1341 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1342 sta->sta.uapsd_queues = params->uapsd_queues;
1343 sta->sta.max_sp = params->max_sp;
1344 }
1345
1346 /* The sender might not have sent the last bit, consider it to be 0 */
1347 if (params->ext_capab_len >= 8) {
1348 u8 val = (params->ext_capab[7] &
1349 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1350
1351 /* we did get all the bits, take the MSB as well */
1352 if (params->ext_capab_len >= 9) {
1353 u8 val_msb = params->ext_capab[8] &
1354 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1355 val_msb <<= 1;
1356 val |= val_msb;
1357 }
1358
1359 switch (val) {
1360 case 1:
1361 sta->sta.max_amsdu_subframes = 32;
1362 break;
1363 case 2:
1364 sta->sta.max_amsdu_subframes = 16;
1365 break;
1366 case 3:
1367 sta->sta.max_amsdu_subframes = 8;
1368 break;
1369 default:
1370 sta->sta.max_amsdu_subframes = 0;
1371 }
1372 }
1373
1374 /*
1375 * cfg80211 validates this (1-2007) and allows setting the AID
1376 * only when creating a new station entry
1377 */
1378 if (params->aid)
1379 sta->sta.aid = params->aid;
1380
1381 /*
1382 * Some of the following updates would be racy if called on an
1383 * existing station, via ieee80211_change_station(). However,
1384 * all such changes are rejected by cfg80211 except for updates
1385 * changing the supported rates on an existing but not yet used
1386 * TDLS peer.
1387 */
1388
1389 if (params->listen_interval >= 0)
1390 sta->listen_interval = params->listen_interval;
1391
1392 if (params->supported_rates) {
1393 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1394 sband, params->supported_rates,
1395 params->supported_rates_len,
1396 &sta->sta.supp_rates[sband->band]);
1397 }
1398
1399 if (params->ht_capa)
1400 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1401 params->ht_capa, sta);
1402
1403 /* VHT can override some HT caps such as the A-MSDU max length */
1404 if (params->vht_capa)
1405 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1406 params->vht_capa, sta);
1407
1408 if (params->opmode_notif_used) {
1409 /* returned value is only needed for rc update, but the
1410 * rc isn't initialized here yet, so ignore it
1411 */
1412 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1413 sband->band);
1414 }
1415
1416 if (params->support_p2p_ps >= 0)
1417 sta->sta.support_p2p_ps = params->support_p2p_ps;
1418
1419 if (ieee80211_vif_is_mesh(&sdata->vif))
1420 sta_apply_mesh_params(local, sta, params);
1421
1422 /* set the STA state after all sta info from usermode has been set */
1423 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1424 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1425 ret = sta_apply_auth_flags(local, sta, mask, set);
1426 if (ret)
1427 return ret;
1428 }
1429
1430 return 0;
1431 }
1432
1433 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1434 const u8 *mac,
1435 struct station_parameters *params)
1436 {
1437 struct ieee80211_local *local = wiphy_priv(wiphy);
1438 struct sta_info *sta;
1439 struct ieee80211_sub_if_data *sdata;
1440 int err;
1441 int layer2_update;
1442
1443 if (params->vlan) {
1444 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1445
1446 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1447 sdata->vif.type != NL80211_IFTYPE_AP)
1448 return -EINVAL;
1449 } else
1450 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1451
1452 if (ether_addr_equal(mac, sdata->vif.addr))
1453 return -EINVAL;
1454
1455 if (is_multicast_ether_addr(mac))
1456 return -EINVAL;
1457
1458 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1459 if (!sta)
1460 return -ENOMEM;
1461
1462 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1463 sta->sta.tdls = true;
1464
1465 err = sta_apply_parameters(local, sta, params);
1466 if (err) {
1467 sta_info_free(local, sta);
1468 return err;
1469 }
1470
1471 /*
1472 * for TDLS and for unassociated station, rate control should be
1473 * initialized only when rates are known and station is marked
1474 * authorized/associated
1475 */
1476 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1477 test_sta_flag(sta, WLAN_STA_ASSOC))
1478 rate_control_rate_init(sta);
1479
1480 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1481 sdata->vif.type == NL80211_IFTYPE_AP;
1482
1483 err = sta_info_insert_rcu(sta);
1484 if (err) {
1485 rcu_read_unlock();
1486 return err;
1487 }
1488
1489 if (layer2_update)
1490 ieee80211_send_layer2_update(sta);
1491
1492 rcu_read_unlock();
1493
1494 return 0;
1495 }
1496
1497 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1498 struct station_del_parameters *params)
1499 {
1500 struct ieee80211_sub_if_data *sdata;
1501
1502 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1503
1504 if (params->mac)
1505 return sta_info_destroy_addr_bss(sdata, params->mac);
1506
1507 sta_info_flush(sdata);
1508 return 0;
1509 }
1510
1511 static int ieee80211_change_station(struct wiphy *wiphy,
1512 struct net_device *dev, const u8 *mac,
1513 struct station_parameters *params)
1514 {
1515 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1516 struct ieee80211_local *local = wiphy_priv(wiphy);
1517 struct sta_info *sta;
1518 struct ieee80211_sub_if_data *vlansdata;
1519 enum cfg80211_station_type statype;
1520 int err;
1521
1522 mutex_lock(&local->sta_mtx);
1523
1524 sta = sta_info_get_bss(sdata, mac);
1525 if (!sta) {
1526 err = -ENOENT;
1527 goto out_err;
1528 }
1529
1530 switch (sdata->vif.type) {
1531 case NL80211_IFTYPE_MESH_POINT:
1532 if (sdata->u.mesh.user_mpm)
1533 statype = CFG80211_STA_MESH_PEER_USER;
1534 else
1535 statype = CFG80211_STA_MESH_PEER_KERNEL;
1536 break;
1537 case NL80211_IFTYPE_ADHOC:
1538 statype = CFG80211_STA_IBSS;
1539 break;
1540 case NL80211_IFTYPE_STATION:
1541 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1542 statype = CFG80211_STA_AP_STA;
1543 break;
1544 }
1545 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1546 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1547 else
1548 statype = CFG80211_STA_TDLS_PEER_SETUP;
1549 break;
1550 case NL80211_IFTYPE_AP:
1551 case NL80211_IFTYPE_AP_VLAN:
1552 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1553 statype = CFG80211_STA_AP_CLIENT;
1554 else
1555 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1556 break;
1557 default:
1558 err = -EOPNOTSUPP;
1559 goto out_err;
1560 }
1561
1562 err = cfg80211_check_station_change(wiphy, params, statype);
1563 if (err)
1564 goto out_err;
1565
1566 if (params->vlan && params->vlan != sta->sdata->dev) {
1567 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1568
1569 if (params->vlan->ieee80211_ptr->use_4addr) {
1570 if (vlansdata->u.vlan.sta) {
1571 err = -EBUSY;
1572 goto out_err;
1573 }
1574
1575 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1576 __ieee80211_check_fast_rx_iface(vlansdata);
1577 }
1578
1579 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1580 sta->sdata->u.vlan.sta)
1581 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1582
1583 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1584 ieee80211_vif_dec_num_mcast(sta->sdata);
1585
1586 sta->sdata = vlansdata;
1587 ieee80211_check_fast_xmit(sta);
1588
1589 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1590 ieee80211_vif_inc_num_mcast(sta->sdata);
1591
1592 ieee80211_send_layer2_update(sta);
1593 }
1594
1595 err = sta_apply_parameters(local, sta, params);
1596 if (err)
1597 goto out_err;
1598
1599 mutex_unlock(&local->sta_mtx);
1600
1601 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1602 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1603 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1604 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1605 sta_info_tx_streams(sta) != 1) {
1606 ht_dbg(sta->sdata,
1607 "%pM just authorized and MIMO capable - update SMPS\n",
1608 sta->sta.addr);
1609 ieee80211_send_smps_action(sta->sdata,
1610 sta->sdata->bss->req_smps,
1611 sta->sta.addr,
1612 sta->sdata->vif.bss_conf.bssid);
1613 }
1614
1615 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1616 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1617 ieee80211_recalc_ps(local);
1618 ieee80211_recalc_ps_vif(sdata);
1619 }
1620
1621 return 0;
1622 out_err:
1623 mutex_unlock(&local->sta_mtx);
1624 return err;
1625 }
1626
1627 #ifdef CONFIG_MAC80211_MESH
1628 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1629 const u8 *dst, const u8 *next_hop)
1630 {
1631 struct ieee80211_sub_if_data *sdata;
1632 struct mesh_path *mpath;
1633 struct sta_info *sta;
1634
1635 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1636
1637 rcu_read_lock();
1638 sta = sta_info_get(sdata, next_hop);
1639 if (!sta) {
1640 rcu_read_unlock();
1641 return -ENOENT;
1642 }
1643
1644 mpath = mesh_path_add(sdata, dst);
1645 if (IS_ERR(mpath)) {
1646 rcu_read_unlock();
1647 return PTR_ERR(mpath);
1648 }
1649
1650 mesh_path_fix_nexthop(mpath, sta);
1651
1652 rcu_read_unlock();
1653 return 0;
1654 }
1655
1656 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1657 const u8 *dst)
1658 {
1659 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1660
1661 if (dst)
1662 return mesh_path_del(sdata, dst);
1663
1664 mesh_path_flush_by_iface(sdata);
1665 return 0;
1666 }
1667
1668 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1669 const u8 *dst, const u8 *next_hop)
1670 {
1671 struct ieee80211_sub_if_data *sdata;
1672 struct mesh_path *mpath;
1673 struct sta_info *sta;
1674
1675 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1676
1677 rcu_read_lock();
1678
1679 sta = sta_info_get(sdata, next_hop);
1680 if (!sta) {
1681 rcu_read_unlock();
1682 return -ENOENT;
1683 }
1684
1685 mpath = mesh_path_lookup(sdata, dst);
1686 if (!mpath) {
1687 rcu_read_unlock();
1688 return -ENOENT;
1689 }
1690
1691 mesh_path_fix_nexthop(mpath, sta);
1692
1693 rcu_read_unlock();
1694 return 0;
1695 }
1696
1697 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1698 struct mpath_info *pinfo)
1699 {
1700 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1701
1702 if (next_hop_sta)
1703 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1704 else
1705 eth_zero_addr(next_hop);
1706
1707 memset(pinfo, 0, sizeof(*pinfo));
1708
1709 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1710
1711 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1712 MPATH_INFO_SN |
1713 MPATH_INFO_METRIC |
1714 MPATH_INFO_EXPTIME |
1715 MPATH_INFO_DISCOVERY_TIMEOUT |
1716 MPATH_INFO_DISCOVERY_RETRIES |
1717 MPATH_INFO_FLAGS;
1718
1719 pinfo->frame_qlen = mpath->frame_queue.qlen;
1720 pinfo->sn = mpath->sn;
1721 pinfo->metric = mpath->metric;
1722 if (time_before(jiffies, mpath->exp_time))
1723 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1724 pinfo->discovery_timeout =
1725 jiffies_to_msecs(mpath->discovery_timeout);
1726 pinfo->discovery_retries = mpath->discovery_retries;
1727 if (mpath->flags & MESH_PATH_ACTIVE)
1728 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1729 if (mpath->flags & MESH_PATH_RESOLVING)
1730 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1731 if (mpath->flags & MESH_PATH_SN_VALID)
1732 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1733 if (mpath->flags & MESH_PATH_FIXED)
1734 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1735 if (mpath->flags & MESH_PATH_RESOLVED)
1736 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1737 }
1738
1739 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1740 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1741
1742 {
1743 struct ieee80211_sub_if_data *sdata;
1744 struct mesh_path *mpath;
1745
1746 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1747
1748 rcu_read_lock();
1749 mpath = mesh_path_lookup(sdata, dst);
1750 if (!mpath) {
1751 rcu_read_unlock();
1752 return -ENOENT;
1753 }
1754 memcpy(dst, mpath->dst, ETH_ALEN);
1755 mpath_set_pinfo(mpath, next_hop, pinfo);
1756 rcu_read_unlock();
1757 return 0;
1758 }
1759
1760 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1761 int idx, u8 *dst, u8 *next_hop,
1762 struct mpath_info *pinfo)
1763 {
1764 struct ieee80211_sub_if_data *sdata;
1765 struct mesh_path *mpath;
1766
1767 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1768
1769 rcu_read_lock();
1770 mpath = mesh_path_lookup_by_idx(sdata, idx);
1771 if (!mpath) {
1772 rcu_read_unlock();
1773 return -ENOENT;
1774 }
1775 memcpy(dst, mpath->dst, ETH_ALEN);
1776 mpath_set_pinfo(mpath, next_hop, pinfo);
1777 rcu_read_unlock();
1778 return 0;
1779 }
1780
1781 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1782 struct mpath_info *pinfo)
1783 {
1784 memset(pinfo, 0, sizeof(*pinfo));
1785 memcpy(mpp, mpath->mpp, ETH_ALEN);
1786
1787 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1788 }
1789
1790 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1791 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1792
1793 {
1794 struct ieee80211_sub_if_data *sdata;
1795 struct mesh_path *mpath;
1796
1797 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1798
1799 rcu_read_lock();
1800 mpath = mpp_path_lookup(sdata, dst);
1801 if (!mpath) {
1802 rcu_read_unlock();
1803 return -ENOENT;
1804 }
1805 memcpy(dst, mpath->dst, ETH_ALEN);
1806 mpp_set_pinfo(mpath, mpp, pinfo);
1807 rcu_read_unlock();
1808 return 0;
1809 }
1810
1811 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1812 int idx, u8 *dst, u8 *mpp,
1813 struct mpath_info *pinfo)
1814 {
1815 struct ieee80211_sub_if_data *sdata;
1816 struct mesh_path *mpath;
1817
1818 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1819
1820 rcu_read_lock();
1821 mpath = mpp_path_lookup_by_idx(sdata, idx);
1822 if (!mpath) {
1823 rcu_read_unlock();
1824 return -ENOENT;
1825 }
1826 memcpy(dst, mpath->dst, ETH_ALEN);
1827 mpp_set_pinfo(mpath, mpp, pinfo);
1828 rcu_read_unlock();
1829 return 0;
1830 }
1831
1832 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1833 struct net_device *dev,
1834 struct mesh_config *conf)
1835 {
1836 struct ieee80211_sub_if_data *sdata;
1837 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1838
1839 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1840 return 0;
1841 }
1842
1843 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1844 {
1845 return (mask >> (parm-1)) & 0x1;
1846 }
1847
1848 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1849 const struct mesh_setup *setup)
1850 {
1851 u8 *new_ie;
1852 const u8 *old_ie;
1853 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1854 struct ieee80211_sub_if_data, u.mesh);
1855
1856 /* allocate information elements */
1857 new_ie = NULL;
1858 old_ie = ifmsh->ie;
1859
1860 if (setup->ie_len) {
1861 new_ie = kmemdup(setup->ie, setup->ie_len,
1862 GFP_KERNEL);
1863 if (!new_ie)
1864 return -ENOMEM;
1865 }
1866 ifmsh->ie_len = setup->ie_len;
1867 ifmsh->ie = new_ie;
1868 kfree(old_ie);
1869
1870 /* now copy the rest of the setup parameters */
1871 ifmsh->mesh_id_len = setup->mesh_id_len;
1872 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1873 ifmsh->mesh_sp_id = setup->sync_method;
1874 ifmsh->mesh_pp_id = setup->path_sel_proto;
1875 ifmsh->mesh_pm_id = setup->path_metric;
1876 ifmsh->user_mpm = setup->user_mpm;
1877 ifmsh->mesh_auth_id = setup->auth_id;
1878 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1879 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1880 if (setup->is_authenticated)
1881 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1882 if (setup->is_secure)
1883 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1884
1885 /* mcast rate setting in Mesh Node */
1886 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1887 sizeof(setup->mcast_rate));
1888 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1889
1890 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1891 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1892
1893 return 0;
1894 }
1895
1896 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1897 struct net_device *dev, u32 mask,
1898 const struct mesh_config *nconf)
1899 {
1900 struct mesh_config *conf;
1901 struct ieee80211_sub_if_data *sdata;
1902 struct ieee80211_if_mesh *ifmsh;
1903
1904 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1905 ifmsh = &sdata->u.mesh;
1906
1907 /* Set the config options which we are interested in setting */
1908 conf = &(sdata->u.mesh.mshcfg);
1909 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1910 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1911 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1912 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1913 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1914 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1915 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1916 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1917 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1918 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1919 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1920 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1921 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1922 conf->element_ttl = nconf->element_ttl;
1923 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1924 if (ifmsh->user_mpm)
1925 return -EBUSY;
1926 conf->auto_open_plinks = nconf->auto_open_plinks;
1927 }
1928 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1929 conf->dot11MeshNbrOffsetMaxNeighbor =
1930 nconf->dot11MeshNbrOffsetMaxNeighbor;
1931 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1932 conf->dot11MeshHWMPmaxPREQretries =
1933 nconf->dot11MeshHWMPmaxPREQretries;
1934 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1935 conf->path_refresh_time = nconf->path_refresh_time;
1936 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1937 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1938 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1939 conf->dot11MeshHWMPactivePathTimeout =
1940 nconf->dot11MeshHWMPactivePathTimeout;
1941 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1942 conf->dot11MeshHWMPpreqMinInterval =
1943 nconf->dot11MeshHWMPpreqMinInterval;
1944 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1945 conf->dot11MeshHWMPperrMinInterval =
1946 nconf->dot11MeshHWMPperrMinInterval;
1947 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1948 mask))
1949 conf->dot11MeshHWMPnetDiameterTraversalTime =
1950 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1951 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1952 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1953 ieee80211_mesh_root_setup(ifmsh);
1954 }
1955 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1956 /* our current gate announcement implementation rides on root
1957 * announcements, so require this ifmsh to also be a root node
1958 * */
1959 if (nconf->dot11MeshGateAnnouncementProtocol &&
1960 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1961 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1962 ieee80211_mesh_root_setup(ifmsh);
1963 }
1964 conf->dot11MeshGateAnnouncementProtocol =
1965 nconf->dot11MeshGateAnnouncementProtocol;
1966 }
1967 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1968 conf->dot11MeshHWMPRannInterval =
1969 nconf->dot11MeshHWMPRannInterval;
1970 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1971 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1972 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1973 /* our RSSI threshold implementation is supported only for
1974 * devices that report signal in dBm.
1975 */
1976 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
1977 return -ENOTSUPP;
1978 conf->rssi_threshold = nconf->rssi_threshold;
1979 }
1980 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1981 conf->ht_opmode = nconf->ht_opmode;
1982 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1983 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1984 }
1985 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1986 conf->dot11MeshHWMPactivePathToRootTimeout =
1987 nconf->dot11MeshHWMPactivePathToRootTimeout;
1988 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1989 conf->dot11MeshHWMProotInterval =
1990 nconf->dot11MeshHWMProotInterval;
1991 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1992 conf->dot11MeshHWMPconfirmationInterval =
1993 nconf->dot11MeshHWMPconfirmationInterval;
1994 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1995 conf->power_mode = nconf->power_mode;
1996 ieee80211_mps_local_status_update(sdata);
1997 }
1998 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1999 conf->dot11MeshAwakeWindowDuration =
2000 nconf->dot11MeshAwakeWindowDuration;
2001 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2002 conf->plink_timeout = nconf->plink_timeout;
2003 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2004 return 0;
2005 }
2006
2007 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2008 const struct mesh_config *conf,
2009 const struct mesh_setup *setup)
2010 {
2011 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2012 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2013 int err;
2014
2015 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2016 err = copy_mesh_setup(ifmsh, setup);
2017 if (err)
2018 return err;
2019
2020 /* can mesh use other SMPS modes? */
2021 sdata->smps_mode = IEEE80211_SMPS_OFF;
2022 sdata->needed_rx_chains = sdata->local->rx_chains;
2023
2024 mutex_lock(&sdata->local->mtx);
2025 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2026 IEEE80211_CHANCTX_SHARED);
2027 mutex_unlock(&sdata->local->mtx);
2028 if (err)
2029 return err;
2030
2031 return ieee80211_start_mesh(sdata);
2032 }
2033
2034 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2035 {
2036 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2037
2038 ieee80211_stop_mesh(sdata);
2039 mutex_lock(&sdata->local->mtx);
2040 ieee80211_vif_release_channel(sdata);
2041 mutex_unlock(&sdata->local->mtx);
2042
2043 return 0;
2044 }
2045 #endif
2046
2047 static int ieee80211_change_bss(struct wiphy *wiphy,
2048 struct net_device *dev,
2049 struct bss_parameters *params)
2050 {
2051 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2052 struct ieee80211_supported_band *sband;
2053 u32 changed = 0;
2054
2055 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2056 return -ENOENT;
2057
2058 sband = ieee80211_get_sband(sdata);
2059 if (!sband)
2060 return -EINVAL;
2061
2062 if (params->use_cts_prot >= 0) {
2063 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2064 changed |= BSS_CHANGED_ERP_CTS_PROT;
2065 }
2066 if (params->use_short_preamble >= 0) {
2067 sdata->vif.bss_conf.use_short_preamble =
2068 params->use_short_preamble;
2069 changed |= BSS_CHANGED_ERP_PREAMBLE;
2070 }
2071
2072 if (!sdata->vif.bss_conf.use_short_slot &&
2073 sband->band == NL80211_BAND_5GHZ) {
2074 sdata->vif.bss_conf.use_short_slot = true;
2075 changed |= BSS_CHANGED_ERP_SLOT;
2076 }
2077
2078 if (params->use_short_slot_time >= 0) {
2079 sdata->vif.bss_conf.use_short_slot =
2080 params->use_short_slot_time;
2081 changed |= BSS_CHANGED_ERP_SLOT;
2082 }
2083
2084 if (params->basic_rates) {
2085 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2086 wiphy->bands[sband->band],
2087 params->basic_rates,
2088 params->basic_rates_len,
2089 &sdata->vif.bss_conf.basic_rates);
2090 changed |= BSS_CHANGED_BASIC_RATES;
2091 ieee80211_check_rate_mask(sdata);
2092 }
2093
2094 if (params->ap_isolate >= 0) {
2095 if (params->ap_isolate)
2096 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2097 else
2098 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2099 ieee80211_check_fast_rx_iface(sdata);
2100 }
2101
2102 if (params->ht_opmode >= 0) {
2103 sdata->vif.bss_conf.ht_operation_mode =
2104 (u16) params->ht_opmode;
2105 changed |= BSS_CHANGED_HT;
2106 }
2107
2108 if (params->p2p_ctwindow >= 0) {
2109 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2110 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2111 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2112 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2113 changed |= BSS_CHANGED_P2P_PS;
2114 }
2115
2116 if (params->p2p_opp_ps > 0) {
2117 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2118 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2119 changed |= BSS_CHANGED_P2P_PS;
2120 } else if (params->p2p_opp_ps == 0) {
2121 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2122 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2123 changed |= BSS_CHANGED_P2P_PS;
2124 }
2125
2126 ieee80211_bss_info_change_notify(sdata, changed);
2127
2128 return 0;
2129 }
2130
2131 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2132 struct net_device *dev,
2133 struct ieee80211_txq_params *params)
2134 {
2135 struct ieee80211_local *local = wiphy_priv(wiphy);
2136 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2137 struct ieee80211_tx_queue_params p;
2138
2139 if (!local->ops->conf_tx)
2140 return -EOPNOTSUPP;
2141
2142 if (local->hw.queues < IEEE80211_NUM_ACS)
2143 return -EOPNOTSUPP;
2144
2145 memset(&p, 0, sizeof(p));
2146 p.aifs = params->aifs;
2147 p.cw_max = params->cwmax;
2148 p.cw_min = params->cwmin;
2149 p.txop = params->txop;
2150
2151 /*
2152 * Setting tx queue params disables u-apsd because it's only
2153 * called in master mode.
2154 */
2155 p.uapsd = false;
2156
2157 sdata->tx_conf[params->ac] = p;
2158 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2159 wiphy_debug(local->hw.wiphy,
2160 "failed to set TX queue parameters for AC %d\n",
2161 params->ac);
2162 return -EINVAL;
2163 }
2164
2165 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2166
2167 return 0;
2168 }
2169
2170 #ifdef CONFIG_PM
2171 static int ieee80211_suspend(struct wiphy *wiphy,
2172 struct cfg80211_wowlan *wowlan)
2173 {
2174 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2175 }
2176
2177 static int ieee80211_resume(struct wiphy *wiphy)
2178 {
2179 return __ieee80211_resume(wiphy_priv(wiphy));
2180 }
2181 #else
2182 #define ieee80211_suspend NULL
2183 #define ieee80211_resume NULL
2184 #endif
2185
2186 static int ieee80211_scan(struct wiphy *wiphy,
2187 struct cfg80211_scan_request *req)
2188 {
2189 struct ieee80211_sub_if_data *sdata;
2190
2191 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2192
2193 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2194 case NL80211_IFTYPE_STATION:
2195 case NL80211_IFTYPE_ADHOC:
2196 case NL80211_IFTYPE_MESH_POINT:
2197 case NL80211_IFTYPE_P2P_CLIENT:
2198 case NL80211_IFTYPE_P2P_DEVICE:
2199 break;
2200 case NL80211_IFTYPE_P2P_GO:
2201 if (sdata->local->ops->hw_scan)
2202 break;
2203 /*
2204 * FIXME: implement NoA while scanning in software,
2205 * for now fall through to allow scanning only when
2206 * beaconing hasn't been configured yet
2207 */
2208 case NL80211_IFTYPE_AP:
2209 /*
2210 * If the scan has been forced (and the driver supports
2211 * forcing), don't care about being beaconing already.
2212 * This will create problems to the attached stations (e.g. all
2213 * the frames sent while scanning on other channel will be
2214 * lost)
2215 */
2216 if (sdata->u.ap.beacon &&
2217 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2218 !(req->flags & NL80211_SCAN_FLAG_AP)))
2219 return -EOPNOTSUPP;
2220 break;
2221 case NL80211_IFTYPE_NAN:
2222 default:
2223 return -EOPNOTSUPP;
2224 }
2225
2226 return ieee80211_request_scan(sdata, req);
2227 }
2228
2229 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2230 {
2231 ieee80211_scan_cancel(wiphy_priv(wiphy));
2232 }
2233
2234 static int
2235 ieee80211_sched_scan_start(struct wiphy *wiphy,
2236 struct net_device *dev,
2237 struct cfg80211_sched_scan_request *req)
2238 {
2239 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2240
2241 if (!sdata->local->ops->sched_scan_start)
2242 return -EOPNOTSUPP;
2243
2244 return ieee80211_request_sched_scan_start(sdata, req);
2245 }
2246
2247 static int
2248 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2249 u64 reqid)
2250 {
2251 struct ieee80211_local *local = wiphy_priv(wiphy);
2252
2253 if (!local->ops->sched_scan_stop)
2254 return -EOPNOTSUPP;
2255
2256 return ieee80211_request_sched_scan_stop(local);
2257 }
2258
2259 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2260 struct cfg80211_auth_request *req)
2261 {
2262 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2263 }
2264
2265 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2266 struct cfg80211_assoc_request *req)
2267 {
2268 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2269 }
2270
2271 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2272 struct cfg80211_deauth_request *req)
2273 {
2274 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2275 }
2276
2277 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2278 struct cfg80211_disassoc_request *req)
2279 {
2280 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2281 }
2282
2283 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2284 struct cfg80211_ibss_params *params)
2285 {
2286 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2287 }
2288
2289 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2290 {
2291 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2292 }
2293
2294 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2295 struct ocb_setup *setup)
2296 {
2297 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2298 }
2299
2300 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2301 {
2302 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2303 }
2304
2305 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2306 int rate[NUM_NL80211_BANDS])
2307 {
2308 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2309
2310 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2311 sizeof(int) * NUM_NL80211_BANDS);
2312
2313 return 0;
2314 }
2315
2316 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2317 {
2318 struct ieee80211_local *local = wiphy_priv(wiphy);
2319 int err;
2320
2321 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2322 ieee80211_check_fast_xmit_all(local);
2323
2324 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2325
2326 if (err) {
2327 ieee80211_check_fast_xmit_all(local);
2328 return err;
2329 }
2330 }
2331
2332 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2333 (changed & WIPHY_PARAM_DYN_ACK)) {
2334 s16 coverage_class;
2335
2336 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2337 wiphy->coverage_class : -1;
2338 err = drv_set_coverage_class(local, coverage_class);
2339
2340 if (err)
2341 return err;
2342 }
2343
2344 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2345 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2346
2347 if (err)
2348 return err;
2349 }
2350
2351 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2352 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2353 return -EINVAL;
2354 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2355 }
2356 if (changed & WIPHY_PARAM_RETRY_LONG) {
2357 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2358 return -EINVAL;
2359 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2360 }
2361 if (changed &
2362 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2363 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2364
2365 return 0;
2366 }
2367
2368 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2369 struct wireless_dev *wdev,
2370 enum nl80211_tx_power_setting type, int mbm)
2371 {
2372 struct ieee80211_local *local = wiphy_priv(wiphy);
2373 struct ieee80211_sub_if_data *sdata;
2374 enum nl80211_tx_power_setting txp_type = type;
2375 bool update_txp_type = false;
2376
2377 if (wdev) {
2378 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2379
2380 switch (type) {
2381 case NL80211_TX_POWER_AUTOMATIC:
2382 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2383 txp_type = NL80211_TX_POWER_LIMITED;
2384 break;
2385 case NL80211_TX_POWER_LIMITED:
2386 case NL80211_TX_POWER_FIXED:
2387 if (mbm < 0 || (mbm % 100))
2388 return -EOPNOTSUPP;
2389 sdata->user_power_level = MBM_TO_DBM(mbm);
2390 break;
2391 }
2392
2393 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2394 update_txp_type = true;
2395 sdata->vif.bss_conf.txpower_type = txp_type;
2396 }
2397
2398 ieee80211_recalc_txpower(sdata, update_txp_type);
2399
2400 return 0;
2401 }
2402
2403 switch (type) {
2404 case NL80211_TX_POWER_AUTOMATIC:
2405 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2406 txp_type = NL80211_TX_POWER_LIMITED;
2407 break;
2408 case NL80211_TX_POWER_LIMITED:
2409 case NL80211_TX_POWER_FIXED:
2410 if (mbm < 0 || (mbm % 100))
2411 return -EOPNOTSUPP;
2412 local->user_power_level = MBM_TO_DBM(mbm);
2413 break;
2414 }
2415
2416 mutex_lock(&local->iflist_mtx);
2417 list_for_each_entry(sdata, &local->interfaces, list) {
2418 sdata->user_power_level = local->user_power_level;
2419 if (txp_type != sdata->vif.bss_conf.txpower_type)
2420 update_txp_type = true;
2421 sdata->vif.bss_conf.txpower_type = txp_type;
2422 }
2423 list_for_each_entry(sdata, &local->interfaces, list)
2424 ieee80211_recalc_txpower(sdata, update_txp_type);
2425 mutex_unlock(&local->iflist_mtx);
2426
2427 return 0;
2428 }
2429
2430 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2431 struct wireless_dev *wdev,
2432 int *dbm)
2433 {
2434 struct ieee80211_local *local = wiphy_priv(wiphy);
2435 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2436
2437 if (local->ops->get_txpower)
2438 return drv_get_txpower(local, sdata, dbm);
2439
2440 if (!local->use_chanctx)
2441 *dbm = local->hw.conf.power_level;
2442 else
2443 *dbm = sdata->vif.bss_conf.txpower;
2444
2445 return 0;
2446 }
2447
2448 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2449 const u8 *addr)
2450 {
2451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2452
2453 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2454
2455 return 0;
2456 }
2457
2458 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2459 {
2460 struct ieee80211_local *local = wiphy_priv(wiphy);
2461
2462 drv_rfkill_poll(local);
2463 }
2464
2465 #ifdef CONFIG_NL80211_TESTMODE
2466 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2467 struct wireless_dev *wdev,
2468 void *data, int len)
2469 {
2470 struct ieee80211_local *local = wiphy_priv(wiphy);
2471 struct ieee80211_vif *vif = NULL;
2472
2473 if (!local->ops->testmode_cmd)
2474 return -EOPNOTSUPP;
2475
2476 if (wdev) {
2477 struct ieee80211_sub_if_data *sdata;
2478
2479 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2480 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2481 vif = &sdata->vif;
2482 }
2483
2484 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2485 }
2486
2487 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2488 struct sk_buff *skb,
2489 struct netlink_callback *cb,
2490 void *data, int len)
2491 {
2492 struct ieee80211_local *local = wiphy_priv(wiphy);
2493
2494 if (!local->ops->testmode_dump)
2495 return -EOPNOTSUPP;
2496
2497 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2498 }
2499 #endif
2500
2501 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2502 enum ieee80211_smps_mode smps_mode)
2503 {
2504 struct sta_info *sta;
2505 enum ieee80211_smps_mode old_req;
2506
2507 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2508 return -EINVAL;
2509
2510 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2511 return 0;
2512
2513 old_req = sdata->u.ap.req_smps;
2514 sdata->u.ap.req_smps = smps_mode;
2515
2516 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2517 if (old_req == smps_mode ||
2518 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2519 return 0;
2520
2521 ht_dbg(sdata,
2522 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2523 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2524
2525 mutex_lock(&sdata->local->sta_mtx);
2526 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2527 /*
2528 * Only stations associated to our AP and
2529 * associated VLANs
2530 */
2531 if (sta->sdata->bss != &sdata->u.ap)
2532 continue;
2533
2534 /* This station doesn't support MIMO - skip it */
2535 if (sta_info_tx_streams(sta) == 1)
2536 continue;
2537
2538 /*
2539 * Don't wake up a STA just to send the action frame
2540 * unless we are getting more restrictive.
2541 */
2542 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2543 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2544 smps_mode)) {
2545 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2546 sta->sta.addr);
2547 continue;
2548 }
2549
2550 /*
2551 * If the STA is not authorized, wait until it gets
2552 * authorized and the action frame will be sent then.
2553 */
2554 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2555 continue;
2556
2557 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2558 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2559 sdata->vif.bss_conf.bssid);
2560 }
2561 mutex_unlock(&sdata->local->sta_mtx);
2562
2563 sdata->smps_mode = smps_mode;
2564 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2565
2566 return 0;
2567 }
2568
2569 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2570 enum ieee80211_smps_mode smps_mode)
2571 {
2572 const u8 *ap;
2573 enum ieee80211_smps_mode old_req;
2574 int err;
2575 struct sta_info *sta;
2576 bool tdls_peer_found = false;
2577
2578 lockdep_assert_held(&sdata->wdev.mtx);
2579
2580 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2581 return -EINVAL;
2582
2583 old_req = sdata->u.mgd.req_smps;
2584 sdata->u.mgd.req_smps = smps_mode;
2585
2586 if (old_req == smps_mode &&
2587 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2588 return 0;
2589
2590 /*
2591 * If not associated, or current association is not an HT
2592 * association, there's no need to do anything, just store
2593 * the new value until we associate.
2594 */
2595 if (!sdata->u.mgd.associated ||
2596 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2597 return 0;
2598
2599 ap = sdata->u.mgd.associated->bssid;
2600
2601 rcu_read_lock();
2602 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2603 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2604 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2605 continue;
2606
2607 tdls_peer_found = true;
2608 break;
2609 }
2610 rcu_read_unlock();
2611
2612 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2613 if (tdls_peer_found || !sdata->u.mgd.powersave)
2614 smps_mode = IEEE80211_SMPS_OFF;
2615 else
2616 smps_mode = IEEE80211_SMPS_DYNAMIC;
2617 }
2618
2619 /* send SM PS frame to AP */
2620 err = ieee80211_send_smps_action(sdata, smps_mode,
2621 ap, ap);
2622 if (err)
2623 sdata->u.mgd.req_smps = old_req;
2624 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2625 ieee80211_teardown_tdls_peers(sdata);
2626
2627 return err;
2628 }
2629
2630 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2631 bool enabled, int timeout)
2632 {
2633 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2634 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2635
2636 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2637 return -EOPNOTSUPP;
2638
2639 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2640 return -EOPNOTSUPP;
2641
2642 if (enabled == sdata->u.mgd.powersave &&
2643 timeout == local->dynamic_ps_forced_timeout)
2644 return 0;
2645
2646 sdata->u.mgd.powersave = enabled;
2647 local->dynamic_ps_forced_timeout = timeout;
2648
2649 /* no change, but if automatic follow powersave */
2650 sdata_lock(sdata);
2651 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2652 sdata_unlock(sdata);
2653
2654 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2655 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2656
2657 ieee80211_recalc_ps(local);
2658 ieee80211_recalc_ps_vif(sdata);
2659
2660 return 0;
2661 }
2662
2663 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2664 struct net_device *dev,
2665 s32 rssi_thold, u32 rssi_hyst)
2666 {
2667 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2668 struct ieee80211_vif *vif = &sdata->vif;
2669 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2670
2671 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2672 rssi_hyst == bss_conf->cqm_rssi_hyst)
2673 return 0;
2674
2675 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2676 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2677 return -EOPNOTSUPP;
2678
2679 bss_conf->cqm_rssi_thold = rssi_thold;
2680 bss_conf->cqm_rssi_hyst = rssi_hyst;
2681 bss_conf->cqm_rssi_low = 0;
2682 bss_conf->cqm_rssi_high = 0;
2683 sdata->u.mgd.last_cqm_event_signal = 0;
2684
2685 /* tell the driver upon association, unless already associated */
2686 if (sdata->u.mgd.associated &&
2687 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2688 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2689
2690 return 0;
2691 }
2692
2693 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2694 struct net_device *dev,
2695 s32 rssi_low, s32 rssi_high)
2696 {
2697 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2698 struct ieee80211_vif *vif = &sdata->vif;
2699 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2700
2701 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2702 return -EOPNOTSUPP;
2703
2704 bss_conf->cqm_rssi_low = rssi_low;
2705 bss_conf->cqm_rssi_high = rssi_high;
2706 bss_conf->cqm_rssi_thold = 0;
2707 bss_conf->cqm_rssi_hyst = 0;
2708 sdata->u.mgd.last_cqm_event_signal = 0;
2709
2710 /* tell the driver upon association, unless already associated */
2711 if (sdata->u.mgd.associated &&
2712 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2713 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2714
2715 return 0;
2716 }
2717
2718 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2719 struct net_device *dev,
2720 const u8 *addr,
2721 const struct cfg80211_bitrate_mask *mask)
2722 {
2723 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2724 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2725 int i, ret;
2726
2727 if (!ieee80211_sdata_running(sdata))
2728 return -ENETDOWN;
2729
2730 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2731 ret = drv_set_bitrate_mask(local, sdata, mask);
2732 if (ret)
2733 return ret;
2734 }
2735
2736 /*
2737 * If active validate the setting and reject it if it doesn't leave
2738 * at least one basic rate usable, since we really have to be able
2739 * to send something, and if we're an AP we have to be able to do
2740 * so at a basic rate so that all clients can receive it.
2741 */
2742 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2743 sdata->vif.bss_conf.chandef.chan) {
2744 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2745 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2746
2747 if (!(mask->control[band].legacy & basic_rates))
2748 return -EINVAL;
2749 }
2750
2751 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2752 struct ieee80211_supported_band *sband = wiphy->bands[i];
2753 int j;
2754
2755 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2756 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2757 sizeof(mask->control[i].ht_mcs));
2758 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2759 mask->control[i].vht_mcs,
2760 sizeof(mask->control[i].vht_mcs));
2761
2762 sdata->rc_has_mcs_mask[i] = false;
2763 sdata->rc_has_vht_mcs_mask[i] = false;
2764 if (!sband)
2765 continue;
2766
2767 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2768 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2769 sdata->rc_has_mcs_mask[i] = true;
2770 break;
2771 }
2772 }
2773
2774 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2775 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2776 sdata->rc_has_vht_mcs_mask[i] = true;
2777 break;
2778 }
2779 }
2780 }
2781
2782 return 0;
2783 }
2784
2785 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2786 struct net_device *dev,
2787 struct cfg80211_chan_def *chandef,
2788 u32 cac_time_ms)
2789 {
2790 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2791 struct ieee80211_local *local = sdata->local;
2792 int err;
2793
2794 mutex_lock(&local->mtx);
2795 if (!list_empty(&local->roc_list) || local->scanning) {
2796 err = -EBUSY;
2797 goto out_unlock;
2798 }
2799
2800 /* whatever, but channel contexts should not complain about that one */
2801 sdata->smps_mode = IEEE80211_SMPS_OFF;
2802 sdata->needed_rx_chains = local->rx_chains;
2803
2804 err = ieee80211_vif_use_channel(sdata, chandef,
2805 IEEE80211_CHANCTX_SHARED);
2806 if (err)
2807 goto out_unlock;
2808
2809 ieee80211_queue_delayed_work(&sdata->local->hw,
2810 &sdata->dfs_cac_timer_work,
2811 msecs_to_jiffies(cac_time_ms));
2812
2813 out_unlock:
2814 mutex_unlock(&local->mtx);
2815 return err;
2816 }
2817
2818 static struct cfg80211_beacon_data *
2819 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2820 {
2821 struct cfg80211_beacon_data *new_beacon;
2822 u8 *pos;
2823 int len;
2824
2825 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2826 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2827 beacon->probe_resp_len;
2828
2829 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2830 if (!new_beacon)
2831 return NULL;
2832
2833 pos = (u8 *)(new_beacon + 1);
2834 if (beacon->head_len) {
2835 new_beacon->head_len = beacon->head_len;
2836 new_beacon->head = pos;
2837 memcpy(pos, beacon->head, beacon->head_len);
2838 pos += beacon->head_len;
2839 }
2840 if (beacon->tail_len) {
2841 new_beacon->tail_len = beacon->tail_len;
2842 new_beacon->tail = pos;
2843 memcpy(pos, beacon->tail, beacon->tail_len);
2844 pos += beacon->tail_len;
2845 }
2846 if (beacon->beacon_ies_len) {
2847 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2848 new_beacon->beacon_ies = pos;
2849 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2850 pos += beacon->beacon_ies_len;
2851 }
2852 if (beacon->proberesp_ies_len) {
2853 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2854 new_beacon->proberesp_ies = pos;
2855 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2856 pos += beacon->proberesp_ies_len;
2857 }
2858 if (beacon->assocresp_ies_len) {
2859 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2860 new_beacon->assocresp_ies = pos;
2861 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2862 pos += beacon->assocresp_ies_len;
2863 }
2864 if (beacon->probe_resp_len) {
2865 new_beacon->probe_resp_len = beacon->probe_resp_len;
2866 beacon->probe_resp = pos;
2867 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2868 pos += beacon->probe_resp_len;
2869 }
2870
2871 return new_beacon;
2872 }
2873
2874 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2875 {
2876 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2877
2878 ieee80211_queue_work(&sdata->local->hw,
2879 &sdata->csa_finalize_work);
2880 }
2881 EXPORT_SYMBOL(ieee80211_csa_finish);
2882
2883 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2884 u32 *changed)
2885 {
2886 int err;
2887
2888 switch (sdata->vif.type) {
2889 case NL80211_IFTYPE_AP:
2890 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2891 NULL);
2892 kfree(sdata->u.ap.next_beacon);
2893 sdata->u.ap.next_beacon = NULL;
2894
2895 if (err < 0)
2896 return err;
2897 *changed |= err;
2898 break;
2899 case NL80211_IFTYPE_ADHOC:
2900 err = ieee80211_ibss_finish_csa(sdata);
2901 if (err < 0)
2902 return err;
2903 *changed |= err;
2904 break;
2905 #ifdef CONFIG_MAC80211_MESH
2906 case NL80211_IFTYPE_MESH_POINT:
2907 err = ieee80211_mesh_finish_csa(sdata);
2908 if (err < 0)
2909 return err;
2910 *changed |= err;
2911 break;
2912 #endif
2913 default:
2914 WARN_ON(1);
2915 return -EINVAL;
2916 }
2917
2918 return 0;
2919 }
2920
2921 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2922 {
2923 struct ieee80211_local *local = sdata->local;
2924 u32 changed = 0;
2925 int err;
2926
2927 sdata_assert_lock(sdata);
2928 lockdep_assert_held(&local->mtx);
2929 lockdep_assert_held(&local->chanctx_mtx);
2930
2931 /*
2932 * using reservation isn't immediate as it may be deferred until later
2933 * with multi-vif. once reservation is complete it will re-schedule the
2934 * work with no reserved_chanctx so verify chandef to check if it
2935 * completed successfully
2936 */
2937
2938 if (sdata->reserved_chanctx) {
2939 /*
2940 * with multi-vif csa driver may call ieee80211_csa_finish()
2941 * many times while waiting for other interfaces to use their
2942 * reservations
2943 */
2944 if (sdata->reserved_ready)
2945 return 0;
2946
2947 return ieee80211_vif_use_reserved_context(sdata);
2948 }
2949
2950 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2951 &sdata->csa_chandef))
2952 return -EINVAL;
2953
2954 sdata->vif.csa_active = false;
2955
2956 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2957 if (err)
2958 return err;
2959
2960 ieee80211_bss_info_change_notify(sdata, changed);
2961
2962 if (sdata->csa_block_tx) {
2963 ieee80211_wake_vif_queues(local, sdata,
2964 IEEE80211_QUEUE_STOP_REASON_CSA);
2965 sdata->csa_block_tx = false;
2966 }
2967
2968 err = drv_post_channel_switch(sdata);
2969 if (err)
2970 return err;
2971
2972 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2973
2974 return 0;
2975 }
2976
2977 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2978 {
2979 if (__ieee80211_csa_finalize(sdata)) {
2980 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2981 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2982 GFP_KERNEL);
2983 }
2984 }
2985
2986 void ieee80211_csa_finalize_work(struct work_struct *work)
2987 {
2988 struct ieee80211_sub_if_data *sdata =
2989 container_of(work, struct ieee80211_sub_if_data,
2990 csa_finalize_work);
2991 struct ieee80211_local *local = sdata->local;
2992
2993 sdata_lock(sdata);
2994 mutex_lock(&local->mtx);
2995 mutex_lock(&local->chanctx_mtx);
2996
2997 /* AP might have been stopped while waiting for the lock. */
2998 if (!sdata->vif.csa_active)
2999 goto unlock;
3000
3001 if (!ieee80211_sdata_running(sdata))
3002 goto unlock;
3003
3004 ieee80211_csa_finalize(sdata);
3005
3006 unlock:
3007 mutex_unlock(&local->chanctx_mtx);
3008 mutex_unlock(&local->mtx);
3009 sdata_unlock(sdata);
3010 }
3011
3012 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3013 struct cfg80211_csa_settings *params,
3014 u32 *changed)
3015 {
3016 struct ieee80211_csa_settings csa = {};
3017 int err;
3018
3019 switch (sdata->vif.type) {
3020 case NL80211_IFTYPE_AP:
3021 sdata->u.ap.next_beacon =
3022 cfg80211_beacon_dup(&params->beacon_after);
3023 if (!sdata->u.ap.next_beacon)
3024 return -ENOMEM;
3025
3026 /*
3027 * With a count of 0, we don't have to wait for any
3028 * TBTT before switching, so complete the CSA
3029 * immediately. In theory, with a count == 1 we
3030 * should delay the switch until just before the next
3031 * TBTT, but that would complicate things so we switch
3032 * immediately too. If we would delay the switch
3033 * until the next TBTT, we would have to set the probe
3034 * response here.
3035 *
3036 * TODO: A channel switch with count <= 1 without
3037 * sending a CSA action frame is kind of useless,
3038 * because the clients won't know we're changing
3039 * channels. The action frame must be implemented
3040 * either here or in the userspace.
3041 */
3042 if (params->count <= 1)
3043 break;
3044
3045 if ((params->n_counter_offsets_beacon >
3046 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3047 (params->n_counter_offsets_presp >
3048 IEEE80211_MAX_CSA_COUNTERS_NUM))
3049 return -EINVAL;
3050
3051 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3052 csa.counter_offsets_presp = params->counter_offsets_presp;
3053 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3054 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3055 csa.count = params->count;
3056
3057 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3058 if (err < 0) {
3059 kfree(sdata->u.ap.next_beacon);
3060 return err;
3061 }
3062 *changed |= err;
3063
3064 break;
3065 case NL80211_IFTYPE_ADHOC:
3066 if (!sdata->vif.bss_conf.ibss_joined)
3067 return -EINVAL;
3068
3069 if (params->chandef.width != sdata->u.ibss.chandef.width)
3070 return -EINVAL;
3071
3072 switch (params->chandef.width) {
3073 case NL80211_CHAN_WIDTH_40:
3074 if (cfg80211_get_chandef_type(&params->chandef) !=
3075 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3076 return -EINVAL;
3077 case NL80211_CHAN_WIDTH_5:
3078 case NL80211_CHAN_WIDTH_10:
3079 case NL80211_CHAN_WIDTH_20_NOHT:
3080 case NL80211_CHAN_WIDTH_20:
3081 break;
3082 default:
3083 return -EINVAL;
3084 }
3085
3086 /* changes into another band are not supported */
3087 if (sdata->u.ibss.chandef.chan->band !=
3088 params->chandef.chan->band)
3089 return -EINVAL;
3090
3091 /* see comments in the NL80211_IFTYPE_AP block */
3092 if (params->count > 1) {
3093 err = ieee80211_ibss_csa_beacon(sdata, params);
3094 if (err < 0)
3095 return err;
3096 *changed |= err;
3097 }
3098
3099 ieee80211_send_action_csa(sdata, params);
3100
3101 break;
3102 #ifdef CONFIG_MAC80211_MESH
3103 case NL80211_IFTYPE_MESH_POINT: {
3104 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3105
3106 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3107 return -EINVAL;
3108
3109 /* changes into another band are not supported */
3110 if (sdata->vif.bss_conf.chandef.chan->band !=
3111 params->chandef.chan->band)
3112 return -EINVAL;
3113
3114 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3115 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3116 if (!ifmsh->pre_value)
3117 ifmsh->pre_value = 1;
3118 else
3119 ifmsh->pre_value++;
3120 }
3121
3122 /* see comments in the NL80211_IFTYPE_AP block */
3123 if (params->count > 1) {
3124 err = ieee80211_mesh_csa_beacon(sdata, params);
3125 if (err < 0) {
3126 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3127 return err;
3128 }
3129 *changed |= err;
3130 }
3131
3132 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3133 ieee80211_send_action_csa(sdata, params);
3134
3135 break;
3136 }
3137 #endif
3138 default:
3139 return -EOPNOTSUPP;
3140 }
3141
3142 return 0;
3143 }
3144
3145 static int
3146 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3147 struct cfg80211_csa_settings *params)
3148 {
3149 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3150 struct ieee80211_local *local = sdata->local;
3151 struct ieee80211_channel_switch ch_switch;
3152 struct ieee80211_chanctx_conf *conf;
3153 struct ieee80211_chanctx *chanctx;
3154 u32 changed = 0;
3155 int err;
3156
3157 sdata_assert_lock(sdata);
3158 lockdep_assert_held(&local->mtx);
3159
3160 if (!list_empty(&local->roc_list) || local->scanning)
3161 return -EBUSY;
3162
3163 if (sdata->wdev.cac_started)
3164 return -EBUSY;
3165
3166 if (cfg80211_chandef_identical(&params->chandef,
3167 &sdata->vif.bss_conf.chandef))
3168 return -EINVAL;
3169
3170 /* don't allow another channel switch if one is already active. */
3171 if (sdata->vif.csa_active)
3172 return -EBUSY;
3173
3174 mutex_lock(&local->chanctx_mtx);
3175 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3176 lockdep_is_held(&local->chanctx_mtx));
3177 if (!conf) {
3178 err = -EBUSY;
3179 goto out;
3180 }
3181
3182 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3183
3184 ch_switch.timestamp = 0;
3185 ch_switch.device_timestamp = 0;
3186 ch_switch.block_tx = params->block_tx;
3187 ch_switch.chandef = params->chandef;
3188 ch_switch.count = params->count;
3189
3190 err = drv_pre_channel_switch(sdata, &ch_switch);
3191 if (err)
3192 goto out;
3193
3194 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3195 chanctx->mode,
3196 params->radar_required);
3197 if (err)
3198 goto out;
3199
3200 /* if reservation is invalid then this will fail */
3201 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3202 if (err) {
3203 ieee80211_vif_unreserve_chanctx(sdata);
3204 goto out;
3205 }
3206
3207 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3208 if (err) {
3209 ieee80211_vif_unreserve_chanctx(sdata);
3210 goto out;
3211 }
3212
3213 sdata->csa_chandef = params->chandef;
3214 sdata->csa_block_tx = params->block_tx;
3215 sdata->vif.csa_active = true;
3216
3217 if (sdata->csa_block_tx)
3218 ieee80211_stop_vif_queues(local, sdata,
3219 IEEE80211_QUEUE_STOP_REASON_CSA);
3220
3221 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3222 params->count);
3223
3224 if (changed) {
3225 ieee80211_bss_info_change_notify(sdata, changed);
3226 drv_channel_switch_beacon(sdata, &params->chandef);
3227 } else {
3228 /* if the beacon didn't change, we can finalize immediately */
3229 ieee80211_csa_finalize(sdata);
3230 }
3231
3232 out:
3233 mutex_unlock(&local->chanctx_mtx);
3234 return err;
3235 }
3236
3237 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3238 struct cfg80211_csa_settings *params)
3239 {
3240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3241 struct ieee80211_local *local = sdata->local;
3242 int err;
3243
3244 mutex_lock(&local->mtx);
3245 err = __ieee80211_channel_switch(wiphy, dev, params);
3246 mutex_unlock(&local->mtx);
3247
3248 return err;
3249 }
3250
3251 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3252 {
3253 lockdep_assert_held(&local->mtx);
3254
3255 local->roc_cookie_counter++;
3256
3257 /* wow, you wrapped 64 bits ... more likely a bug */
3258 if (WARN_ON(local->roc_cookie_counter == 0))
3259 local->roc_cookie_counter++;
3260
3261 return local->roc_cookie_counter;
3262 }
3263
3264 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3265 u64 *cookie, gfp_t gfp)
3266 {
3267 unsigned long spin_flags;
3268 struct sk_buff *ack_skb;
3269 int id;
3270
3271 ack_skb = skb_copy(skb, gfp);
3272 if (!ack_skb)
3273 return -ENOMEM;
3274
3275 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3276 id = idr_alloc(&local->ack_status_frames, ack_skb,
3277 1, 0x10000, GFP_ATOMIC);
3278 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3279
3280 if (id < 0) {
3281 kfree_skb(ack_skb);
3282 return -ENOMEM;
3283 }
3284
3285 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3286
3287 *cookie = ieee80211_mgmt_tx_cookie(local);
3288 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3289
3290 return 0;
3291 }
3292
3293 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3294 struct wireless_dev *wdev,
3295 u16 frame_type, bool reg)
3296 {
3297 struct ieee80211_local *local = wiphy_priv(wiphy);
3298 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3299
3300 switch (frame_type) {
3301 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3302 if (reg) {
3303 local->probe_req_reg++;
3304 sdata->vif.probe_req_reg++;
3305 } else {
3306 if (local->probe_req_reg)
3307 local->probe_req_reg--;
3308
3309 if (sdata->vif.probe_req_reg)
3310 sdata->vif.probe_req_reg--;
3311 }
3312
3313 if (!local->open_count)
3314 break;
3315
3316 if (sdata->vif.probe_req_reg == 1)
3317 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3318 FIF_PROBE_REQ);
3319 else if (sdata->vif.probe_req_reg == 0)
3320 drv_config_iface_filter(local, sdata, 0,
3321 FIF_PROBE_REQ);
3322
3323 ieee80211_configure_filter(local);
3324 break;
3325 default:
3326 break;
3327 }
3328 }
3329
3330 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3331 {
3332 struct ieee80211_local *local = wiphy_priv(wiphy);
3333
3334 if (local->started)
3335 return -EOPNOTSUPP;
3336
3337 return drv_set_antenna(local, tx_ant, rx_ant);
3338 }
3339
3340 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3341 {
3342 struct ieee80211_local *local = wiphy_priv(wiphy);
3343
3344 return drv_get_antenna(local, tx_ant, rx_ant);
3345 }
3346
3347 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3348 struct net_device *dev,
3349 struct cfg80211_gtk_rekey_data *data)
3350 {
3351 struct ieee80211_local *local = wiphy_priv(wiphy);
3352 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3353
3354 if (!local->ops->set_rekey_data)
3355 return -EOPNOTSUPP;
3356
3357 drv_set_rekey_data(local, sdata, data);
3358
3359 return 0;
3360 }
3361
3362 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3363 const u8 *peer, u64 *cookie)
3364 {
3365 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3366 struct ieee80211_local *local = sdata->local;
3367 struct ieee80211_qos_hdr *nullfunc;
3368 struct sk_buff *skb;
3369 int size = sizeof(*nullfunc);
3370 __le16 fc;
3371 bool qos;
3372 struct ieee80211_tx_info *info;
3373 struct sta_info *sta;
3374 struct ieee80211_chanctx_conf *chanctx_conf;
3375 enum nl80211_band band;
3376 int ret;
3377
3378 /* the lock is needed to assign the cookie later */
3379 mutex_lock(&local->mtx);
3380
3381 rcu_read_lock();
3382 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3383 if (WARN_ON(!chanctx_conf)) {
3384 ret = -EINVAL;
3385 goto unlock;
3386 }
3387 band = chanctx_conf->def.chan->band;
3388 sta = sta_info_get_bss(sdata, peer);
3389 if (sta) {
3390 qos = sta->sta.wme;
3391 } else {
3392 ret = -ENOLINK;
3393 goto unlock;
3394 }
3395
3396 if (qos) {
3397 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3398 IEEE80211_STYPE_QOS_NULLFUNC |
3399 IEEE80211_FCTL_FROMDS);
3400 } else {
3401 size -= 2;
3402 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3403 IEEE80211_STYPE_NULLFUNC |
3404 IEEE80211_FCTL_FROMDS);
3405 }
3406
3407 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3408 if (!skb) {
3409 ret = -ENOMEM;
3410 goto unlock;
3411 }
3412
3413 skb->dev = dev;
3414
3415 skb_reserve(skb, local->hw.extra_tx_headroom);
3416
3417 nullfunc = skb_put(skb, size);
3418 nullfunc->frame_control = fc;
3419 nullfunc->duration_id = 0;
3420 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3421 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3422 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3423 nullfunc->seq_ctrl = 0;
3424
3425 info = IEEE80211_SKB_CB(skb);
3426
3427 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3428 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3429 info->band = band;
3430
3431 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3432 skb->priority = 7;
3433 if (qos)
3434 nullfunc->qos_ctrl = cpu_to_le16(7);
3435
3436 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3437 if (ret) {
3438 kfree_skb(skb);
3439 goto unlock;
3440 }
3441
3442 local_bh_disable();
3443 ieee80211_xmit(sdata, sta, skb);
3444 local_bh_enable();
3445
3446 ret = 0;
3447 unlock:
3448 rcu_read_unlock();
3449 mutex_unlock(&local->mtx);
3450
3451 return ret;
3452 }
3453
3454 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3455 struct wireless_dev *wdev,
3456 struct cfg80211_chan_def *chandef)
3457 {
3458 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3459 struct ieee80211_local *local = wiphy_priv(wiphy);
3460 struct ieee80211_chanctx_conf *chanctx_conf;
3461 int ret = -ENODATA;
3462
3463 rcu_read_lock();
3464 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3465 if (chanctx_conf) {
3466 *chandef = sdata->vif.bss_conf.chandef;
3467 ret = 0;
3468 } else if (local->open_count > 0 &&
3469 local->open_count == local->monitors &&
3470 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3471 if (local->use_chanctx)
3472 *chandef = local->monitor_chandef;
3473 else
3474 *chandef = local->_oper_chandef;
3475 ret = 0;
3476 }
3477 rcu_read_unlock();
3478
3479 return ret;
3480 }
3481
3482 #ifdef CONFIG_PM
3483 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3484 {
3485 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3486 }
3487 #endif
3488
3489 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3490 struct net_device *dev,
3491 struct cfg80211_qos_map *qos_map)
3492 {
3493 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3494 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3495
3496 if (qos_map) {
3497 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3498 if (!new_qos_map)
3499 return -ENOMEM;
3500 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3501 } else {
3502 /* A NULL qos_map was passed to disable QoS mapping */
3503 new_qos_map = NULL;
3504 }
3505
3506 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3507 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3508 if (old_qos_map)
3509 kfree_rcu(old_qos_map, rcu_head);
3510
3511 return 0;
3512 }
3513
3514 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3515 struct net_device *dev,
3516 struct cfg80211_chan_def *chandef)
3517 {
3518 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3519 int ret;
3520 u32 changed = 0;
3521
3522 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3523 if (ret == 0)
3524 ieee80211_bss_info_change_notify(sdata, changed);
3525
3526 return ret;
3527 }
3528
3529 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3530 u8 tsid, const u8 *peer, u8 up,
3531 u16 admitted_time)
3532 {
3533 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3534 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3535 int ac = ieee802_1d_to_ac[up];
3536
3537 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3538 return -EOPNOTSUPP;
3539
3540 if (!(sdata->wmm_acm & BIT(up)))
3541 return -EINVAL;
3542
3543 if (ifmgd->tx_tspec[ac].admitted_time)
3544 return -EBUSY;
3545
3546 if (admitted_time) {
3547 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3548 ifmgd->tx_tspec[ac].tsid = tsid;
3549 ifmgd->tx_tspec[ac].up = up;
3550 }
3551
3552 return 0;
3553 }
3554
3555 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3556 u8 tsid, const u8 *peer)
3557 {
3558 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3559 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3560 struct ieee80211_local *local = wiphy_priv(wiphy);
3561 int ac;
3562
3563 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3564 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3565
3566 /* skip unused entries */
3567 if (!tx_tspec->admitted_time)
3568 continue;
3569
3570 if (tx_tspec->tsid != tsid)
3571 continue;
3572
3573 /* due to this new packets will be reassigned to non-ACM ACs */
3574 tx_tspec->up = -1;
3575
3576 /* Make sure that all packets have been sent to avoid to
3577 * restore the QoS params on packets that are still on the
3578 * queues.
3579 */
3580 synchronize_net();
3581 ieee80211_flush_queues(local, sdata, false);
3582
3583 /* restore the normal QoS parameters
3584 * (unconditionally to avoid races)
3585 */
3586 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3587 tx_tspec->downgraded = false;
3588 ieee80211_sta_handle_tspec_ac_params(sdata);
3589
3590 /* finally clear all the data */
3591 memset(tx_tspec, 0, sizeof(*tx_tspec));
3592
3593 return 0;
3594 }
3595
3596 return -ENOENT;
3597 }
3598
3599 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3600 u8 inst_id,
3601 enum nl80211_nan_func_term_reason reason,
3602 gfp_t gfp)
3603 {
3604 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3605 struct cfg80211_nan_func *func;
3606 u64 cookie;
3607
3608 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3609 return;
3610
3611 spin_lock_bh(&sdata->u.nan.func_lock);
3612
3613 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3614 if (WARN_ON(!func)) {
3615 spin_unlock_bh(&sdata->u.nan.func_lock);
3616 return;
3617 }
3618
3619 cookie = func->cookie;
3620 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3621
3622 spin_unlock_bh(&sdata->u.nan.func_lock);
3623
3624 cfg80211_free_nan_func(func);
3625
3626 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3627 reason, cookie, gfp);
3628 }
3629 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3630
3631 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3632 struct cfg80211_nan_match_params *match,
3633 gfp_t gfp)
3634 {
3635 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3636 struct cfg80211_nan_func *func;
3637
3638 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3639 return;
3640
3641 spin_lock_bh(&sdata->u.nan.func_lock);
3642
3643 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3644 if (WARN_ON(!func)) {
3645 spin_unlock_bh(&sdata->u.nan.func_lock);
3646 return;
3647 }
3648 match->cookie = func->cookie;
3649
3650 spin_unlock_bh(&sdata->u.nan.func_lock);
3651
3652 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3653 }
3654 EXPORT_SYMBOL(ieee80211_nan_func_match);
3655
3656 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3657 struct net_device *dev,
3658 const bool enabled)
3659 {
3660 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3661
3662 sdata->u.ap.multicast_to_unicast = enabled;
3663
3664 return 0;
3665 }
3666
3667 const struct cfg80211_ops mac80211_config_ops = {
3668 .add_virtual_intf = ieee80211_add_iface,
3669 .del_virtual_intf = ieee80211_del_iface,
3670 .change_virtual_intf = ieee80211_change_iface,
3671 .start_p2p_device = ieee80211_start_p2p_device,
3672 .stop_p2p_device = ieee80211_stop_p2p_device,
3673 .add_key = ieee80211_add_key,
3674 .del_key = ieee80211_del_key,
3675 .get_key = ieee80211_get_key,
3676 .set_default_key = ieee80211_config_default_key,
3677 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3678 .start_ap = ieee80211_start_ap,
3679 .change_beacon = ieee80211_change_beacon,
3680 .stop_ap = ieee80211_stop_ap,
3681 .add_station = ieee80211_add_station,
3682 .del_station = ieee80211_del_station,
3683 .change_station = ieee80211_change_station,
3684 .get_station = ieee80211_get_station,
3685 .dump_station = ieee80211_dump_station,
3686 .dump_survey = ieee80211_dump_survey,
3687 #ifdef CONFIG_MAC80211_MESH
3688 .add_mpath = ieee80211_add_mpath,
3689 .del_mpath = ieee80211_del_mpath,
3690 .change_mpath = ieee80211_change_mpath,
3691 .get_mpath = ieee80211_get_mpath,
3692 .dump_mpath = ieee80211_dump_mpath,
3693 .get_mpp = ieee80211_get_mpp,
3694 .dump_mpp = ieee80211_dump_mpp,
3695 .update_mesh_config = ieee80211_update_mesh_config,
3696 .get_mesh_config = ieee80211_get_mesh_config,
3697 .join_mesh = ieee80211_join_mesh,
3698 .leave_mesh = ieee80211_leave_mesh,
3699 #endif
3700 .join_ocb = ieee80211_join_ocb,
3701 .leave_ocb = ieee80211_leave_ocb,
3702 .change_bss = ieee80211_change_bss,
3703 .set_txq_params = ieee80211_set_txq_params,
3704 .set_monitor_channel = ieee80211_set_monitor_channel,
3705 .suspend = ieee80211_suspend,
3706 .resume = ieee80211_resume,
3707 .scan = ieee80211_scan,
3708 .abort_scan = ieee80211_abort_scan,
3709 .sched_scan_start = ieee80211_sched_scan_start,
3710 .sched_scan_stop = ieee80211_sched_scan_stop,
3711 .auth = ieee80211_auth,
3712 .assoc = ieee80211_assoc,
3713 .deauth = ieee80211_deauth,
3714 .disassoc = ieee80211_disassoc,
3715 .join_ibss = ieee80211_join_ibss,
3716 .leave_ibss = ieee80211_leave_ibss,
3717 .set_mcast_rate = ieee80211_set_mcast_rate,
3718 .set_wiphy_params = ieee80211_set_wiphy_params,
3719 .set_tx_power = ieee80211_set_tx_power,
3720 .get_tx_power = ieee80211_get_tx_power,
3721 .set_wds_peer = ieee80211_set_wds_peer,
3722 .rfkill_poll = ieee80211_rfkill_poll,
3723 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3724 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3725 .set_power_mgmt = ieee80211_set_power_mgmt,
3726 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3727 .remain_on_channel = ieee80211_remain_on_channel,
3728 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3729 .mgmt_tx = ieee80211_mgmt_tx,
3730 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3731 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3732 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
3733 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3734 .set_antenna = ieee80211_set_antenna,
3735 .get_antenna = ieee80211_get_antenna,
3736 .set_rekey_data = ieee80211_set_rekey_data,
3737 .tdls_oper = ieee80211_tdls_oper,
3738 .tdls_mgmt = ieee80211_tdls_mgmt,
3739 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3740 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3741 .probe_client = ieee80211_probe_client,
3742 .set_noack_map = ieee80211_set_noack_map,
3743 #ifdef CONFIG_PM
3744 .set_wakeup = ieee80211_set_wakeup,
3745 #endif
3746 .get_channel = ieee80211_cfg_get_channel,
3747 .start_radar_detection = ieee80211_start_radar_detection,
3748 .channel_switch = ieee80211_channel_switch,
3749 .set_qos_map = ieee80211_set_qos_map,
3750 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3751 .add_tx_ts = ieee80211_add_tx_ts,
3752 .del_tx_ts = ieee80211_del_tx_ts,
3753 .start_nan = ieee80211_start_nan,
3754 .stop_nan = ieee80211_stop_nan,
3755 .nan_change_conf = ieee80211_nan_change_conf,
3756 .add_nan_func = ieee80211_add_nan_func,
3757 .del_nan_func = ieee80211_del_nan_func,
3758 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
3759 };
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