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mm/zsmalloc: allocate exactly size of struct zs_pool
[linux/fpc-iii.git] / net / mac80211 / cfg.c
blobe75d5c53e97ba9cbd9640de2d4a3798d33711609
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
6 *
7 * This file is GPLv2 as found in COPYING.
8 */
9
10 #include <linux/ieee80211.h>
11 #include <linux/nl80211.h>
12 #include <linux/rtnetlink.h>
13 #include <linux/slab.h>
14 #include <net/net_namespace.h>
15 #include <linux/rcupdate.h>
16 #include <linux/if_ether.h>
17 #include <net/cfg80211.h>
18 #include "ieee80211_i.h"
19 #include "driver-ops.h"
20 #include "cfg.h"
21 #include "rate.h"
22 #include "mesh.h"
23 #include "wme.h"
24
25 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
26 const char *name,
27 enum nl80211_iftype type,
28 u32 *flags,
29 struct vif_params *params)
30 {
31 struct ieee80211_local *local = wiphy_priv(wiphy);
32 struct wireless_dev *wdev;
33 struct ieee80211_sub_if_data *sdata;
34 int err;
35
36 err = ieee80211_if_add(local, name, &wdev, type, params);
37 if (err)
38 return ERR_PTR(err);
39
40 if (type == NL80211_IFTYPE_MONITOR && flags) {
41 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
42 sdata->u.mntr_flags = *flags;
43 }
44
45 return wdev;
46 }
47
48 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
49 {
50 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
51
52 return 0;
53 }
54
55 static int ieee80211_change_iface(struct wiphy *wiphy,
56 struct net_device *dev,
57 enum nl80211_iftype type, u32 *flags,
58 struct vif_params *params)
59 {
60 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
61 int ret;
62
63 ret = ieee80211_if_change_type(sdata, type);
64 if (ret)
65 return ret;
66
67 if (type == NL80211_IFTYPE_AP_VLAN &&
68 params && params->use_4addr == 0)
69 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
70 else if (type == NL80211_IFTYPE_STATION &&
71 params && params->use_4addr >= 0)
72 sdata->u.mgd.use_4addr = params->use_4addr;
73
74 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
75 struct ieee80211_local *local = sdata->local;
76
77 if (ieee80211_sdata_running(sdata)) {
78 u32 mask = MONITOR_FLAG_COOK_FRAMES |
79 MONITOR_FLAG_ACTIVE;
80
81 /*
82 * Prohibit MONITOR_FLAG_COOK_FRAMES and
83 * MONITOR_FLAG_ACTIVE to be changed while the
84 * interface is up.
85 * Else we would need to add a lot of cruft
86 * to update everything:
87 * cooked_mntrs, monitor and all fif_* counters
88 * reconfigure hardware
89 */
90 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
91 return -EBUSY;
92
93 ieee80211_adjust_monitor_flags(sdata, -1);
94 sdata->u.mntr_flags = *flags;
95 ieee80211_adjust_monitor_flags(sdata, 1);
96
97 ieee80211_configure_filter(local);
98 } else {
99 /*
100 * Because the interface is down, ieee80211_do_stop
101 * and ieee80211_do_open take care of "everything"
102 * mentioned in the comment above.
103 */
104 sdata->u.mntr_flags = *flags;
105 }
106 }
107
108 return 0;
109 }
110
111 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
112 struct wireless_dev *wdev)
113 {
114 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
115 int ret;
116
117 mutex_lock(&sdata->local->chanctx_mtx);
118 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
119 mutex_unlock(&sdata->local->chanctx_mtx);
120 if (ret < 0)
121 return ret;
122
123 return ieee80211_do_open(wdev, true);
124 }
125
126 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
127 struct wireless_dev *wdev)
128 {
129 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
130 }
131
132 static int ieee80211_set_noack_map(struct wiphy *wiphy,
133 struct net_device *dev,
134 u16 noack_map)
135 {
136 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
137
138 sdata->noack_map = noack_map;
139 return 0;
140 }
141
142 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
143 u8 key_idx, bool pairwise, const u8 *mac_addr,
144 struct key_params *params)
145 {
146 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
147 struct ieee80211_local *local = sdata->local;
148 struct sta_info *sta = NULL;
149 const struct ieee80211_cipher_scheme *cs = NULL;
150 struct ieee80211_key *key;
151 int err;
152
153 if (!ieee80211_sdata_running(sdata))
154 return -ENETDOWN;
155
156 /* reject WEP and TKIP keys if WEP failed to initialize */
157 switch (params->cipher) {
158 case WLAN_CIPHER_SUITE_WEP40:
159 case WLAN_CIPHER_SUITE_TKIP:
160 case WLAN_CIPHER_SUITE_WEP104:
161 if (IS_ERR(local->wep_tx_tfm))
162 return -EINVAL;
163 break;
164 case WLAN_CIPHER_SUITE_CCMP:
165 case WLAN_CIPHER_SUITE_AES_CMAC:
166 case WLAN_CIPHER_SUITE_GCMP:
167 break;
168 default:
169 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
170 break;
171 }
172
173 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
174 params->key, params->seq_len, params->seq,
175 cs);
176 if (IS_ERR(key))
177 return PTR_ERR(key);
178
179 if (pairwise)
180 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
181
182 mutex_lock(&local->sta_mtx);
183
184 if (mac_addr) {
185 if (ieee80211_vif_is_mesh(&sdata->vif))
186 sta = sta_info_get(sdata, mac_addr);
187 else
188 sta = sta_info_get_bss(sdata, mac_addr);
189 /*
190 * The ASSOC test makes sure the driver is ready to
191 * receive the key. When wpa_supplicant has roamed
192 * using FT, it attempts to set the key before
193 * association has completed, this rejects that attempt
194 * so it will set the key again after association.
195 *
196 * TODO: accept the key if we have a station entry and
197 * add it to the device after the station.
198 */
199 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
200 ieee80211_key_free_unused(key);
201 err = -ENOENT;
202 goto out_unlock;
203 }
204 }
205
206 switch (sdata->vif.type) {
207 case NL80211_IFTYPE_STATION:
208 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
209 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
210 break;
211 case NL80211_IFTYPE_AP:
212 case NL80211_IFTYPE_AP_VLAN:
213 /* Keys without a station are used for TX only */
214 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
215 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
216 break;
217 case NL80211_IFTYPE_ADHOC:
218 /* no MFP (yet) */
219 break;
220 case NL80211_IFTYPE_MESH_POINT:
221 #ifdef CONFIG_MAC80211_MESH
222 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
223 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
224 break;
225 #endif
226 case NL80211_IFTYPE_WDS:
227 case NL80211_IFTYPE_MONITOR:
228 case NL80211_IFTYPE_P2P_DEVICE:
229 case NL80211_IFTYPE_UNSPECIFIED:
230 case NUM_NL80211_IFTYPES:
231 case NL80211_IFTYPE_P2P_CLIENT:
232 case NL80211_IFTYPE_P2P_GO:
233 case NL80211_IFTYPE_OCB:
234 /* shouldn't happen */
235 WARN_ON_ONCE(1);
236 break;
237 }
238
239 if (sta)
240 sta->cipher_scheme = cs;
241
242 err = ieee80211_key_link(key, sdata, sta);
243
244 out_unlock:
245 mutex_unlock(&local->sta_mtx);
246
247 return err;
248 }
249
250 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
251 u8 key_idx, bool pairwise, const u8 *mac_addr)
252 {
253 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
254 struct ieee80211_local *local = sdata->local;
255 struct sta_info *sta;
256 struct ieee80211_key *key = NULL;
257 int ret;
258
259 mutex_lock(&local->sta_mtx);
260 mutex_lock(&local->key_mtx);
261
262 if (mac_addr) {
263 ret = -ENOENT;
264
265 sta = sta_info_get_bss(sdata, mac_addr);
266 if (!sta)
267 goto out_unlock;
268
269 if (pairwise)
270 key = key_mtx_dereference(local, sta->ptk[key_idx]);
271 else
272 key = key_mtx_dereference(local, sta->gtk[key_idx]);
273 } else
274 key = key_mtx_dereference(local, sdata->keys[key_idx]);
275
276 if (!key) {
277 ret = -ENOENT;
278 goto out_unlock;
279 }
280
281 ieee80211_key_free(key, true);
282
283 ret = 0;
284 out_unlock:
285 mutex_unlock(&local->key_mtx);
286 mutex_unlock(&local->sta_mtx);
287
288 return ret;
289 }
290
291 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
292 u8 key_idx, bool pairwise, const u8 *mac_addr,
293 void *cookie,
294 void (*callback)(void *cookie,
295 struct key_params *params))
296 {
297 struct ieee80211_sub_if_data *sdata;
298 struct sta_info *sta = NULL;
299 u8 seq[6] = {0};
300 struct key_params params;
301 struct ieee80211_key *key = NULL;
302 u64 pn64;
303 u32 iv32;
304 u16 iv16;
305 int err = -ENOENT;
306
307 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
308
309 rcu_read_lock();
310
311 if (mac_addr) {
312 sta = sta_info_get_bss(sdata, mac_addr);
313 if (!sta)
314 goto out;
315
316 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
317 key = rcu_dereference(sta->ptk[key_idx]);
318 else if (!pairwise &&
319 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
320 key = rcu_dereference(sta->gtk[key_idx]);
321 } else
322 key = rcu_dereference(sdata->keys[key_idx]);
323
324 if (!key)
325 goto out;
326
327 memset(&params, 0, sizeof(params));
328
329 params.cipher = key->conf.cipher;
330
331 switch (key->conf.cipher) {
332 case WLAN_CIPHER_SUITE_TKIP:
333 iv32 = key->u.tkip.tx.iv32;
334 iv16 = key->u.tkip.tx.iv16;
335
336 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
337 drv_get_tkip_seq(sdata->local,
338 key->conf.hw_key_idx,
339 &iv32, &iv16);
340
341 seq[0] = iv16 & 0xff;
342 seq[1] = (iv16 >> 8) & 0xff;
343 seq[2] = iv32 & 0xff;
344 seq[3] = (iv32 >> 8) & 0xff;
345 seq[4] = (iv32 >> 16) & 0xff;
346 seq[5] = (iv32 >> 24) & 0xff;
347 params.seq = seq;
348 params.seq_len = 6;
349 break;
350 case WLAN_CIPHER_SUITE_CCMP:
351 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
352 seq[0] = pn64;
353 seq[1] = pn64 >> 8;
354 seq[2] = pn64 >> 16;
355 seq[3] = pn64 >> 24;
356 seq[4] = pn64 >> 32;
357 seq[5] = pn64 >> 40;
358 params.seq = seq;
359 params.seq_len = 6;
360 break;
361 case WLAN_CIPHER_SUITE_AES_CMAC:
362 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
363 seq[0] = pn64;
364 seq[1] = pn64 >> 8;
365 seq[2] = pn64 >> 16;
366 seq[3] = pn64 >> 24;
367 seq[4] = pn64 >> 32;
368 seq[5] = pn64 >> 40;
369 params.seq = seq;
370 params.seq_len = 6;
371 break;
372 }
373
374 params.key = key->conf.key;
375 params.key_len = key->conf.keylen;
376
377 callback(cookie, &params);
378 err = 0;
379
380 out:
381 rcu_read_unlock();
382 return err;
383 }
384
385 static int ieee80211_config_default_key(struct wiphy *wiphy,
386 struct net_device *dev,
387 u8 key_idx, bool uni,
388 bool multi)
389 {
390 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
391
392 ieee80211_set_default_key(sdata, key_idx, uni, multi);
393
394 return 0;
395 }
396
397 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
398 struct net_device *dev,
399 u8 key_idx)
400 {
401 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
402
403 ieee80211_set_default_mgmt_key(sdata, key_idx);
404
405 return 0;
406 }
407
408 void sta_set_rate_info_tx(struct sta_info *sta,
409 const struct ieee80211_tx_rate *rate,
410 struct rate_info *rinfo)
411 {
412 rinfo->flags = 0;
413 if (rate->flags & IEEE80211_TX_RC_MCS) {
414 rinfo->flags |= RATE_INFO_FLAGS_MCS;
415 rinfo->mcs = rate->idx;
416 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
417 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
418 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
419 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
420 } else {
421 struct ieee80211_supported_band *sband;
422 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
423 u16 brate;
424
425 sband = sta->local->hw.wiphy->bands[
426 ieee80211_get_sdata_band(sta->sdata)];
427 brate = sband->bitrates[rate->idx].bitrate;
428 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
429 }
430 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
431 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
432 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
433 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
434 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
435 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
436 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
437 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
438 }
439
440 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
441 {
442 rinfo->flags = 0;
443
444 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
445 rinfo->flags |= RATE_INFO_FLAGS_MCS;
446 rinfo->mcs = sta->last_rx_rate_idx;
447 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
448 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
449 rinfo->nss = sta->last_rx_rate_vht_nss;
450 rinfo->mcs = sta->last_rx_rate_idx;
451 } else {
452 struct ieee80211_supported_band *sband;
453 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
454 u16 brate;
455
456 sband = sta->local->hw.wiphy->bands[
457 ieee80211_get_sdata_band(sta->sdata)];
458 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
459 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
460 }
461
462 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
463 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
464 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
465 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
466 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
467 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
468 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ)
469 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
470 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
471 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
472 }
473
474 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
475 int idx, u8 *mac, struct station_info *sinfo)
476 {
477 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
478 struct ieee80211_local *local = sdata->local;
479 struct sta_info *sta;
480 int ret = -ENOENT;
481
482 mutex_lock(&local->sta_mtx);
483
484 sta = sta_info_get_by_idx(sdata, idx);
485 if (sta) {
486 ret = 0;
487 memcpy(mac, sta->sta.addr, ETH_ALEN);
488 sta_set_sinfo(sta, sinfo);
489 }
490
491 mutex_unlock(&local->sta_mtx);
492
493 return ret;
494 }
495
496 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
497 int idx, struct survey_info *survey)
498 {
499 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
500
501 return drv_get_survey(local, idx, survey);
502 }
503
504 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
505 const u8 *mac, struct station_info *sinfo)
506 {
507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
508 struct ieee80211_local *local = sdata->local;
509 struct sta_info *sta;
510 int ret = -ENOENT;
511
512 mutex_lock(&local->sta_mtx);
513
514 sta = sta_info_get_bss(sdata, mac);
515 if (sta) {
516 ret = 0;
517 sta_set_sinfo(sta, sinfo);
518 }
519
520 mutex_unlock(&local->sta_mtx);
521
522 return ret;
523 }
524
525 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
526 struct cfg80211_chan_def *chandef)
527 {
528 struct ieee80211_local *local = wiphy_priv(wiphy);
529 struct ieee80211_sub_if_data *sdata;
530 int ret = 0;
531
532 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
533 return 0;
534
535 mutex_lock(&local->mtx);
536 mutex_lock(&local->iflist_mtx);
537 if (local->use_chanctx) {
538 sdata = rcu_dereference_protected(
539 local->monitor_sdata,
540 lockdep_is_held(&local->iflist_mtx));
541 if (sdata) {
542 ieee80211_vif_release_channel(sdata);
543 ret = ieee80211_vif_use_channel(sdata, chandef,
544 IEEE80211_CHANCTX_EXCLUSIVE);
545 }
546 } else if (local->open_count == local->monitors) {
547 local->_oper_chandef = *chandef;
548 ieee80211_hw_config(local, 0);
549 }
550
551 if (ret == 0)
552 local->monitor_chandef = *chandef;
553 mutex_unlock(&local->iflist_mtx);
554 mutex_unlock(&local->mtx);
555
556 return ret;
557 }
558
559 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
560 const u8 *resp, size_t resp_len,
561 const struct ieee80211_csa_settings *csa)
562 {
563 struct probe_resp *new, *old;
564
565 if (!resp || !resp_len)
566 return 1;
567
568 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
569
570 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
571 if (!new)
572 return -ENOMEM;
573
574 new->len = resp_len;
575 memcpy(new->data, resp, resp_len);
576
577 if (csa)
578 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
579 csa->n_counter_offsets_presp *
580 sizeof(new->csa_counter_offsets[0]));
581
582 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
583 if (old)
584 kfree_rcu(old, rcu_head);
585
586 return 0;
587 }
588
589 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
590 struct cfg80211_beacon_data *params,
591 const struct ieee80211_csa_settings *csa)
592 {
593 struct beacon_data *new, *old;
594 int new_head_len, new_tail_len;
595 int size, err;
596 u32 changed = BSS_CHANGED_BEACON;
597
598 old = sdata_dereference(sdata->u.ap.beacon, sdata);
599
600
601 /* Need to have a beacon head if we don't have one yet */
602 if (!params->head && !old)
603 return -EINVAL;
604
605 /* new or old head? */
606 if (params->head)
607 new_head_len = params->head_len;
608 else
609 new_head_len = old->head_len;
610
611 /* new or old tail? */
612 if (params->tail || !old)
613 /* params->tail_len will be zero for !params->tail */
614 new_tail_len = params->tail_len;
615 else
616 new_tail_len = old->tail_len;
617
618 size = sizeof(*new) + new_head_len + new_tail_len;
619
620 new = kzalloc(size, GFP_KERNEL);
621 if (!new)
622 return -ENOMEM;
623
624 /* start filling the new info now */
625
626 /*
627 * pointers go into the block we allocated,
628 * memory is | beacon_data | head | tail |
629 */
630 new->head = ((u8 *) new) + sizeof(*new);
631 new->tail = new->head + new_head_len;
632 new->head_len = new_head_len;
633 new->tail_len = new_tail_len;
634
635 if (csa) {
636 new->csa_current_counter = csa->count;
637 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
638 csa->n_counter_offsets_beacon *
639 sizeof(new->csa_counter_offsets[0]));
640 }
641
642 /* copy in head */
643 if (params->head)
644 memcpy(new->head, params->head, new_head_len);
645 else
646 memcpy(new->head, old->head, new_head_len);
647
648 /* copy in optional tail */
649 if (params->tail)
650 memcpy(new->tail, params->tail, new_tail_len);
651 else
652 if (old)
653 memcpy(new->tail, old->tail, new_tail_len);
654
655 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
656 params->probe_resp_len, csa);
657 if (err < 0)
658 return err;
659 if (err == 0)
660 changed |= BSS_CHANGED_AP_PROBE_RESP;
661
662 rcu_assign_pointer(sdata->u.ap.beacon, new);
663
664 if (old)
665 kfree_rcu(old, rcu_head);
666
667 return changed;
668 }
669
670 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
671 struct cfg80211_ap_settings *params)
672 {
673 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
674 struct ieee80211_local *local = sdata->local;
675 struct beacon_data *old;
676 struct ieee80211_sub_if_data *vlan;
677 u32 changed = BSS_CHANGED_BEACON_INT |
678 BSS_CHANGED_BEACON_ENABLED |
679 BSS_CHANGED_BEACON |
680 BSS_CHANGED_SSID |
681 BSS_CHANGED_P2P_PS;
682 int err;
683
684 old = sdata_dereference(sdata->u.ap.beacon, sdata);
685 if (old)
686 return -EALREADY;
687
688 switch (params->smps_mode) {
689 case NL80211_SMPS_OFF:
690 sdata->smps_mode = IEEE80211_SMPS_OFF;
691 break;
692 case NL80211_SMPS_STATIC:
693 sdata->smps_mode = IEEE80211_SMPS_STATIC;
694 break;
695 case NL80211_SMPS_DYNAMIC:
696 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
697 break;
698 default:
699 return -EINVAL;
700 }
701 sdata->needed_rx_chains = sdata->local->rx_chains;
702
703 mutex_lock(&local->mtx);
704 err = ieee80211_vif_use_channel(sdata, &params->chandef,
705 IEEE80211_CHANCTX_SHARED);
706 if (!err)
707 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
708 mutex_unlock(&local->mtx);
709 if (err)
710 return err;
711
712 /*
713 * Apply control port protocol, this allows us to
714 * not encrypt dynamic WEP control frames.
715 */
716 sdata->control_port_protocol = params->crypto.control_port_ethertype;
717 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
718 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
719 &params->crypto,
720 sdata->vif.type);
721
722 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
723 vlan->control_port_protocol =
724 params->crypto.control_port_ethertype;
725 vlan->control_port_no_encrypt =
726 params->crypto.control_port_no_encrypt;
727 vlan->encrypt_headroom =
728 ieee80211_cs_headroom(sdata->local,
729 &params->crypto,
730 vlan->vif.type);
731 }
732
733 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
734 sdata->vif.bss_conf.dtim_period = params->dtim_period;
735 sdata->vif.bss_conf.enable_beacon = true;
736
737 sdata->vif.bss_conf.ssid_len = params->ssid_len;
738 if (params->ssid_len)
739 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
740 params->ssid_len);
741 sdata->vif.bss_conf.hidden_ssid =
742 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
743
744 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
745 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
746 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
747 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
748 if (params->p2p_opp_ps)
749 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
750 IEEE80211_P2P_OPPPS_ENABLE_BIT;
751
752 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
753 if (err < 0) {
754 ieee80211_vif_release_channel(sdata);
755 return err;
756 }
757 changed |= err;
758
759 err = drv_start_ap(sdata->local, sdata);
760 if (err) {
761 old = sdata_dereference(sdata->u.ap.beacon, sdata);
762
763 if (old)
764 kfree_rcu(old, rcu_head);
765 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
766 ieee80211_vif_release_channel(sdata);
767 return err;
768 }
769
770 ieee80211_recalc_dtim(local, sdata);
771 ieee80211_bss_info_change_notify(sdata, changed);
772
773 netif_carrier_on(dev);
774 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
775 netif_carrier_on(vlan->dev);
776
777 return 0;
778 }
779
780 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
781 struct cfg80211_beacon_data *params)
782 {
783 struct ieee80211_sub_if_data *sdata;
784 struct beacon_data *old;
785 int err;
786
787 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
788 sdata_assert_lock(sdata);
789
790 /* don't allow changing the beacon while CSA is in place - offset
791 * of channel switch counter may change
792 */
793 if (sdata->vif.csa_active)
794 return -EBUSY;
795
796 old = sdata_dereference(sdata->u.ap.beacon, sdata);
797 if (!old)
798 return -ENOENT;
799
800 err = ieee80211_assign_beacon(sdata, params, NULL);
801 if (err < 0)
802 return err;
803 ieee80211_bss_info_change_notify(sdata, err);
804 return 0;
805 }
806
807 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
808 {
809 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
810 struct ieee80211_sub_if_data *vlan;
811 struct ieee80211_local *local = sdata->local;
812 struct beacon_data *old_beacon;
813 struct probe_resp *old_probe_resp;
814 struct cfg80211_chan_def chandef;
815
816 sdata_assert_lock(sdata);
817
818 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
819 if (!old_beacon)
820 return -ENOENT;
821 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
822
823 /* abort any running channel switch */
824 mutex_lock(&local->mtx);
825 sdata->vif.csa_active = false;
826 if (sdata->csa_block_tx) {
827 ieee80211_wake_vif_queues(local, sdata,
828 IEEE80211_QUEUE_STOP_REASON_CSA);
829 sdata->csa_block_tx = false;
830 }
831
832 mutex_unlock(&local->mtx);
833
834 kfree(sdata->u.ap.next_beacon);
835 sdata->u.ap.next_beacon = NULL;
836
837 /* turn off carrier for this interface and dependent VLANs */
838 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
839 netif_carrier_off(vlan->dev);
840 netif_carrier_off(dev);
841
842 /* remove beacon and probe response */
843 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
844 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
845 kfree_rcu(old_beacon, rcu_head);
846 if (old_probe_resp)
847 kfree_rcu(old_probe_resp, rcu_head);
848 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
849
850 __sta_info_flush(sdata, true);
851 ieee80211_free_keys(sdata, true);
852
853 sdata->vif.bss_conf.enable_beacon = false;
854 sdata->vif.bss_conf.ssid_len = 0;
855 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
856 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
857
858 if (sdata->wdev.cac_started) {
859 chandef = sdata->vif.bss_conf.chandef;
860 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
861 cfg80211_cac_event(sdata->dev, &chandef,
862 NL80211_RADAR_CAC_ABORTED,
863 GFP_KERNEL);
864 }
865
866 drv_stop_ap(sdata->local, sdata);
867
868 /* free all potentially still buffered bcast frames */
869 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
870 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
871
872 mutex_lock(&local->mtx);
873 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
874 ieee80211_vif_release_channel(sdata);
875 mutex_unlock(&local->mtx);
876
877 return 0;
878 }
879
880 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
881 struct iapp_layer2_update {
882 u8 da[ETH_ALEN]; /* broadcast */
883 u8 sa[ETH_ALEN]; /* STA addr */
884 __be16 len; /* 6 */
885 u8 dsap; /* 0 */
886 u8 ssap; /* 0 */
887 u8 control;
888 u8 xid_info[3];
889 } __packed;
890
891 static void ieee80211_send_layer2_update(struct sta_info *sta)
892 {
893 struct iapp_layer2_update *msg;
894 struct sk_buff *skb;
895
896 /* Send Level 2 Update Frame to update forwarding tables in layer 2
897 * bridge devices */
898
899 skb = dev_alloc_skb(sizeof(*msg));
900 if (!skb)
901 return;
902 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
903
904 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
905 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
906
907 eth_broadcast_addr(msg->da);
908 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
909 msg->len = htons(6);
910 msg->dsap = 0;
911 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
912 msg->control = 0xaf; /* XID response lsb.1111F101.
913 * F=0 (no poll command; unsolicited frame) */
914 msg->xid_info[0] = 0x81; /* XID format identifier */
915 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
916 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
917
918 skb->dev = sta->sdata->dev;
919 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
920 memset(skb->cb, 0, sizeof(skb->cb));
921 netif_rx_ni(skb);
922 }
923
924 static int sta_apply_auth_flags(struct ieee80211_local *local,
925 struct sta_info *sta,
926 u32 mask, u32 set)
927 {
928 int ret;
929
930 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
931 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
932 !test_sta_flag(sta, WLAN_STA_AUTH)) {
933 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
934 if (ret)
935 return ret;
936 }
937
938 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
939 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
940 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
941 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
942 if (ret)
943 return ret;
944 }
945
946 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
947 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
948 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
949 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
950 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
951 else
952 ret = 0;
953 if (ret)
954 return ret;
955 }
956
957 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
958 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
959 test_sta_flag(sta, WLAN_STA_ASSOC)) {
960 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
961 if (ret)
962 return ret;
963 }
964
965 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
966 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
967 test_sta_flag(sta, WLAN_STA_AUTH)) {
968 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
969 if (ret)
970 return ret;
971 }
972
973 return 0;
974 }
975
976 static int sta_apply_parameters(struct ieee80211_local *local,
977 struct sta_info *sta,
978 struct station_parameters *params)
979 {
980 int ret = 0;
981 struct ieee80211_supported_band *sband;
982 struct ieee80211_sub_if_data *sdata = sta->sdata;
983 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
984 u32 mask, set;
985
986 sband = local->hw.wiphy->bands[band];
987
988 mask = params->sta_flags_mask;
989 set = params->sta_flags_set;
990
991 if (ieee80211_vif_is_mesh(&sdata->vif)) {
992 /*
993 * In mesh mode, ASSOCIATED isn't part of the nl80211
994 * API but must follow AUTHENTICATED for driver state.
995 */
996 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
997 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
998 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
999 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1000 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1001 /*
1002 * TDLS -- everything follows authorized, but
1003 * only becoming authorized is possible, not
1004 * going back
1005 */
1006 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1007 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1008 BIT(NL80211_STA_FLAG_ASSOCIATED);
1009 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1010 BIT(NL80211_STA_FLAG_ASSOCIATED);
1011 }
1012 }
1013
1014 /* auth flags will be set later for TDLS stations */
1015 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1016 ret = sta_apply_auth_flags(local, sta, mask, set);
1017 if (ret)
1018 return ret;
1019 }
1020
1021 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1022 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1023 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1024 else
1025 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1026 }
1027
1028 if (mask & BIT(NL80211_STA_FLAG_WME))
1029 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1030
1031 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1032 if (set & BIT(NL80211_STA_FLAG_MFP))
1033 set_sta_flag(sta, WLAN_STA_MFP);
1034 else
1035 clear_sta_flag(sta, WLAN_STA_MFP);
1036 }
1037
1038 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1039 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1040 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1041 else
1042 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1043 }
1044
1045 /* mark TDLS channel switch support, if the AP allows it */
1046 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1047 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1048 params->ext_capab_len >= 4 &&
1049 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1050 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1051
1052 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1053 sta->sta.uapsd_queues = params->uapsd_queues;
1054 sta->sta.max_sp = params->max_sp;
1055 }
1056
1057 /*
1058 * cfg80211 validates this (1-2007) and allows setting the AID
1059 * only when creating a new station entry
1060 */
1061 if (params->aid)
1062 sta->sta.aid = params->aid;
1063
1064 /*
1065 * Some of the following updates would be racy if called on an
1066 * existing station, via ieee80211_change_station(). However,
1067 * all such changes are rejected by cfg80211 except for updates
1068 * changing the supported rates on an existing but not yet used
1069 * TDLS peer.
1070 */
1071
1072 if (params->listen_interval >= 0)
1073 sta->listen_interval = params->listen_interval;
1074
1075 if (params->supported_rates) {
1076 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1077 sband, params->supported_rates,
1078 params->supported_rates_len,
1079 &sta->sta.supp_rates[band]);
1080 }
1081
1082 if (params->ht_capa)
1083 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1084 params->ht_capa, sta);
1085
1086 if (params->vht_capa)
1087 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1088 params->vht_capa, sta);
1089
1090 if (params->opmode_notif_used) {
1091 /* returned value is only needed for rc update, but the
1092 * rc isn't initialized here yet, so ignore it
1093 */
1094 __ieee80211_vht_handle_opmode(sdata, sta,
1095 params->opmode_notif,
1096 band, false);
1097 }
1098
1099 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1100 #ifdef CONFIG_MAC80211_MESH
1101 u32 changed = 0;
1102
1103 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1104 switch (params->plink_state) {
1105 case NL80211_PLINK_ESTAB:
1106 if (sta->plink_state != NL80211_PLINK_ESTAB)
1107 changed = mesh_plink_inc_estab_count(
1108 sdata);
1109 sta->plink_state = params->plink_state;
1110
1111 ieee80211_mps_sta_status_update(sta);
1112 changed |= ieee80211_mps_set_sta_local_pm(sta,
1113 sdata->u.mesh.mshcfg.power_mode);
1114 break;
1115 case NL80211_PLINK_LISTEN:
1116 case NL80211_PLINK_BLOCKED:
1117 case NL80211_PLINK_OPN_SNT:
1118 case NL80211_PLINK_OPN_RCVD:
1119 case NL80211_PLINK_CNF_RCVD:
1120 case NL80211_PLINK_HOLDING:
1121 if (sta->plink_state == NL80211_PLINK_ESTAB)
1122 changed = mesh_plink_dec_estab_count(
1123 sdata);
1124 sta->plink_state = params->plink_state;
1125
1126 ieee80211_mps_sta_status_update(sta);
1127 changed |= ieee80211_mps_set_sta_local_pm(sta,
1128 NL80211_MESH_POWER_UNKNOWN);
1129 break;
1130 default:
1131 /* nothing */
1132 break;
1133 }
1134 }
1135
1136 switch (params->plink_action) {
1137 case NL80211_PLINK_ACTION_NO_ACTION:
1138 /* nothing */
1139 break;
1140 case NL80211_PLINK_ACTION_OPEN:
1141 changed |= mesh_plink_open(sta);
1142 break;
1143 case NL80211_PLINK_ACTION_BLOCK:
1144 changed |= mesh_plink_block(sta);
1145 break;
1146 }
1147
1148 if (params->local_pm)
1149 changed |=
1150 ieee80211_mps_set_sta_local_pm(sta,
1151 params->local_pm);
1152 ieee80211_mbss_info_change_notify(sdata, changed);
1153 #endif
1154 }
1155
1156 /* set the STA state after all sta info from usermode has been set */
1157 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1158 ret = sta_apply_auth_flags(local, sta, mask, set);
1159 if (ret)
1160 return ret;
1161 }
1162
1163 return 0;
1164 }
1165
1166 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1167 const u8 *mac,
1168 struct station_parameters *params)
1169 {
1170 struct ieee80211_local *local = wiphy_priv(wiphy);
1171 struct sta_info *sta;
1172 struct ieee80211_sub_if_data *sdata;
1173 int err;
1174 int layer2_update;
1175
1176 if (params->vlan) {
1177 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1178
1179 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1180 sdata->vif.type != NL80211_IFTYPE_AP)
1181 return -EINVAL;
1182 } else
1183 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1184
1185 if (ether_addr_equal(mac, sdata->vif.addr))
1186 return -EINVAL;
1187
1188 if (is_multicast_ether_addr(mac))
1189 return -EINVAL;
1190
1191 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1192 if (!sta)
1193 return -ENOMEM;
1194
1195 /*
1196 * defaults -- if userspace wants something else we'll
1197 * change it accordingly in sta_apply_parameters()
1198 */
1199 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1200 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1201 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1202 } else {
1203 sta->sta.tdls = true;
1204 }
1205
1206 err = sta_apply_parameters(local, sta, params);
1207 if (err) {
1208 sta_info_free(local, sta);
1209 return err;
1210 }
1211
1212 /*
1213 * for TDLS, rate control should be initialized only when
1214 * rates are known and station is marked authorized
1215 */
1216 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1217 rate_control_rate_init(sta);
1218
1219 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1220 sdata->vif.type == NL80211_IFTYPE_AP;
1221
1222 err = sta_info_insert_rcu(sta);
1223 if (err) {
1224 rcu_read_unlock();
1225 return err;
1226 }
1227
1228 if (layer2_update)
1229 ieee80211_send_layer2_update(sta);
1230
1231 rcu_read_unlock();
1232
1233 return 0;
1234 }
1235
1236 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1237 struct station_del_parameters *params)
1238 {
1239 struct ieee80211_sub_if_data *sdata;
1240
1241 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1242
1243 if (params->mac)
1244 return sta_info_destroy_addr_bss(sdata, params->mac);
1245
1246 sta_info_flush(sdata);
1247 return 0;
1248 }
1249
1250 static int ieee80211_change_station(struct wiphy *wiphy,
1251 struct net_device *dev, const u8 *mac,
1252 struct station_parameters *params)
1253 {
1254 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1255 struct ieee80211_local *local = wiphy_priv(wiphy);
1256 struct sta_info *sta;
1257 struct ieee80211_sub_if_data *vlansdata;
1258 enum cfg80211_station_type statype;
1259 int err;
1260
1261 mutex_lock(&local->sta_mtx);
1262
1263 sta = sta_info_get_bss(sdata, mac);
1264 if (!sta) {
1265 err = -ENOENT;
1266 goto out_err;
1267 }
1268
1269 switch (sdata->vif.type) {
1270 case NL80211_IFTYPE_MESH_POINT:
1271 if (sdata->u.mesh.user_mpm)
1272 statype = CFG80211_STA_MESH_PEER_USER;
1273 else
1274 statype = CFG80211_STA_MESH_PEER_KERNEL;
1275 break;
1276 case NL80211_IFTYPE_ADHOC:
1277 statype = CFG80211_STA_IBSS;
1278 break;
1279 case NL80211_IFTYPE_STATION:
1280 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1281 statype = CFG80211_STA_AP_STA;
1282 break;
1283 }
1284 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1285 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1286 else
1287 statype = CFG80211_STA_TDLS_PEER_SETUP;
1288 break;
1289 case NL80211_IFTYPE_AP:
1290 case NL80211_IFTYPE_AP_VLAN:
1291 statype = CFG80211_STA_AP_CLIENT;
1292 break;
1293 default:
1294 err = -EOPNOTSUPP;
1295 goto out_err;
1296 }
1297
1298 err = cfg80211_check_station_change(wiphy, params, statype);
1299 if (err)
1300 goto out_err;
1301
1302 if (params->vlan && params->vlan != sta->sdata->dev) {
1303 bool prev_4addr = false;
1304 bool new_4addr = false;
1305
1306 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1307
1308 if (params->vlan->ieee80211_ptr->use_4addr) {
1309 if (vlansdata->u.vlan.sta) {
1310 err = -EBUSY;
1311 goto out_err;
1312 }
1313
1314 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1315 new_4addr = true;
1316 }
1317
1318 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1319 sta->sdata->u.vlan.sta) {
1320 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1321 prev_4addr = true;
1322 }
1323
1324 sta->sdata = vlansdata;
1325
1326 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1327 prev_4addr != new_4addr) {
1328 if (new_4addr)
1329 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1330 else
1331 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1332 }
1333
1334 ieee80211_send_layer2_update(sta);
1335 }
1336
1337 err = sta_apply_parameters(local, sta, params);
1338 if (err)
1339 goto out_err;
1340
1341 /* When peer becomes authorized, init rate control as well */
1342 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1343 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1344 rate_control_rate_init(sta);
1345
1346 mutex_unlock(&local->sta_mtx);
1347
1348 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1349 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1350 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1351 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1352 sta_info_tx_streams(sta) != 1) {
1353 ht_dbg(sta->sdata,
1354 "%pM just authorized and MIMO capable - update SMPS\n",
1355 sta->sta.addr);
1356 ieee80211_send_smps_action(sta->sdata,
1357 sta->sdata->bss->req_smps,
1358 sta->sta.addr,
1359 sta->sdata->vif.bss_conf.bssid);
1360 }
1361
1362 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1363 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1364 ieee80211_recalc_ps(local, -1);
1365 ieee80211_recalc_ps_vif(sdata);
1366 }
1367
1368 return 0;
1369 out_err:
1370 mutex_unlock(&local->sta_mtx);
1371 return err;
1372 }
1373
1374 #ifdef CONFIG_MAC80211_MESH
1375 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1376 const u8 *dst, const u8 *next_hop)
1377 {
1378 struct ieee80211_sub_if_data *sdata;
1379 struct mesh_path *mpath;
1380 struct sta_info *sta;
1381
1382 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1383
1384 rcu_read_lock();
1385 sta = sta_info_get(sdata, next_hop);
1386 if (!sta) {
1387 rcu_read_unlock();
1388 return -ENOENT;
1389 }
1390
1391 mpath = mesh_path_add(sdata, dst);
1392 if (IS_ERR(mpath)) {
1393 rcu_read_unlock();
1394 return PTR_ERR(mpath);
1395 }
1396
1397 mesh_path_fix_nexthop(mpath, sta);
1398
1399 rcu_read_unlock();
1400 return 0;
1401 }
1402
1403 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1404 const u8 *dst)
1405 {
1406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1407
1408 if (dst)
1409 return mesh_path_del(sdata, dst);
1410
1411 mesh_path_flush_by_iface(sdata);
1412 return 0;
1413 }
1414
1415 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1416 const u8 *dst, const u8 *next_hop)
1417 {
1418 struct ieee80211_sub_if_data *sdata;
1419 struct mesh_path *mpath;
1420 struct sta_info *sta;
1421
1422 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1423
1424 rcu_read_lock();
1425
1426 sta = sta_info_get(sdata, next_hop);
1427 if (!sta) {
1428 rcu_read_unlock();
1429 return -ENOENT;
1430 }
1431
1432 mpath = mesh_path_lookup(sdata, dst);
1433 if (!mpath) {
1434 rcu_read_unlock();
1435 return -ENOENT;
1436 }
1437
1438 mesh_path_fix_nexthop(mpath, sta);
1439
1440 rcu_read_unlock();
1441 return 0;
1442 }
1443
1444 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1445 struct mpath_info *pinfo)
1446 {
1447 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1448
1449 if (next_hop_sta)
1450 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1451 else
1452 memset(next_hop, 0, ETH_ALEN);
1453
1454 memset(pinfo, 0, sizeof(*pinfo));
1455
1456 pinfo->generation = mesh_paths_generation;
1457
1458 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1459 MPATH_INFO_SN |
1460 MPATH_INFO_METRIC |
1461 MPATH_INFO_EXPTIME |
1462 MPATH_INFO_DISCOVERY_TIMEOUT |
1463 MPATH_INFO_DISCOVERY_RETRIES |
1464 MPATH_INFO_FLAGS;
1465
1466 pinfo->frame_qlen = mpath->frame_queue.qlen;
1467 pinfo->sn = mpath->sn;
1468 pinfo->metric = mpath->metric;
1469 if (time_before(jiffies, mpath->exp_time))
1470 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1471 pinfo->discovery_timeout =
1472 jiffies_to_msecs(mpath->discovery_timeout);
1473 pinfo->discovery_retries = mpath->discovery_retries;
1474 if (mpath->flags & MESH_PATH_ACTIVE)
1475 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1476 if (mpath->flags & MESH_PATH_RESOLVING)
1477 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1478 if (mpath->flags & MESH_PATH_SN_VALID)
1479 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1480 if (mpath->flags & MESH_PATH_FIXED)
1481 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1482 if (mpath->flags & MESH_PATH_RESOLVED)
1483 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1484 }
1485
1486 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1487 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1488
1489 {
1490 struct ieee80211_sub_if_data *sdata;
1491 struct mesh_path *mpath;
1492
1493 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1494
1495 rcu_read_lock();
1496 mpath = mesh_path_lookup(sdata, dst);
1497 if (!mpath) {
1498 rcu_read_unlock();
1499 return -ENOENT;
1500 }
1501 memcpy(dst, mpath->dst, ETH_ALEN);
1502 mpath_set_pinfo(mpath, next_hop, pinfo);
1503 rcu_read_unlock();
1504 return 0;
1505 }
1506
1507 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1508 int idx, u8 *dst, u8 *next_hop,
1509 struct mpath_info *pinfo)
1510 {
1511 struct ieee80211_sub_if_data *sdata;
1512 struct mesh_path *mpath;
1513
1514 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1515
1516 rcu_read_lock();
1517 mpath = mesh_path_lookup_by_idx(sdata, idx);
1518 if (!mpath) {
1519 rcu_read_unlock();
1520 return -ENOENT;
1521 }
1522 memcpy(dst, mpath->dst, ETH_ALEN);
1523 mpath_set_pinfo(mpath, next_hop, pinfo);
1524 rcu_read_unlock();
1525 return 0;
1526 }
1527
1528 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1529 struct mpath_info *pinfo)
1530 {
1531 memset(pinfo, 0, sizeof(*pinfo));
1532 memcpy(mpp, mpath->mpp, ETH_ALEN);
1533
1534 pinfo->generation = mpp_paths_generation;
1535 }
1536
1537 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1538 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1539
1540 {
1541 struct ieee80211_sub_if_data *sdata;
1542 struct mesh_path *mpath;
1543
1544 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1545
1546 rcu_read_lock();
1547 mpath = mpp_path_lookup(sdata, dst);
1548 if (!mpath) {
1549 rcu_read_unlock();
1550 return -ENOENT;
1551 }
1552 memcpy(dst, mpath->dst, ETH_ALEN);
1553 mpp_set_pinfo(mpath, mpp, pinfo);
1554 rcu_read_unlock();
1555 return 0;
1556 }
1557
1558 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1559 int idx, u8 *dst, u8 *mpp,
1560 struct mpath_info *pinfo)
1561 {
1562 struct ieee80211_sub_if_data *sdata;
1563 struct mesh_path *mpath;
1564
1565 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1566
1567 rcu_read_lock();
1568 mpath = mpp_path_lookup_by_idx(sdata, idx);
1569 if (!mpath) {
1570 rcu_read_unlock();
1571 return -ENOENT;
1572 }
1573 memcpy(dst, mpath->dst, ETH_ALEN);
1574 mpp_set_pinfo(mpath, mpp, pinfo);
1575 rcu_read_unlock();
1576 return 0;
1577 }
1578
1579 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1580 struct net_device *dev,
1581 struct mesh_config *conf)
1582 {
1583 struct ieee80211_sub_if_data *sdata;
1584 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1585
1586 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1587 return 0;
1588 }
1589
1590 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1591 {
1592 return (mask >> (parm-1)) & 0x1;
1593 }
1594
1595 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1596 const struct mesh_setup *setup)
1597 {
1598 u8 *new_ie;
1599 const u8 *old_ie;
1600 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1601 struct ieee80211_sub_if_data, u.mesh);
1602
1603 /* allocate information elements */
1604 new_ie = NULL;
1605 old_ie = ifmsh->ie;
1606
1607 if (setup->ie_len) {
1608 new_ie = kmemdup(setup->ie, setup->ie_len,
1609 GFP_KERNEL);
1610 if (!new_ie)
1611 return -ENOMEM;
1612 }
1613 ifmsh->ie_len = setup->ie_len;
1614 ifmsh->ie = new_ie;
1615 kfree(old_ie);
1616
1617 /* now copy the rest of the setup parameters */
1618 ifmsh->mesh_id_len = setup->mesh_id_len;
1619 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1620 ifmsh->mesh_sp_id = setup->sync_method;
1621 ifmsh->mesh_pp_id = setup->path_sel_proto;
1622 ifmsh->mesh_pm_id = setup->path_metric;
1623 ifmsh->user_mpm = setup->user_mpm;
1624 ifmsh->mesh_auth_id = setup->auth_id;
1625 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1626 if (setup->is_authenticated)
1627 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1628 if (setup->is_secure)
1629 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1630
1631 /* mcast rate setting in Mesh Node */
1632 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1633 sizeof(setup->mcast_rate));
1634 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1635
1636 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1637 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1638
1639 return 0;
1640 }
1641
1642 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1643 struct net_device *dev, u32 mask,
1644 const struct mesh_config *nconf)
1645 {
1646 struct mesh_config *conf;
1647 struct ieee80211_sub_if_data *sdata;
1648 struct ieee80211_if_mesh *ifmsh;
1649
1650 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1651 ifmsh = &sdata->u.mesh;
1652
1653 /* Set the config options which we are interested in setting */
1654 conf = &(sdata->u.mesh.mshcfg);
1655 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1656 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1657 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1658 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1659 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1660 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1661 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1662 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1663 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1664 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1665 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1666 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1667 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1668 conf->element_ttl = nconf->element_ttl;
1669 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1670 if (ifmsh->user_mpm)
1671 return -EBUSY;
1672 conf->auto_open_plinks = nconf->auto_open_plinks;
1673 }
1674 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1675 conf->dot11MeshNbrOffsetMaxNeighbor =
1676 nconf->dot11MeshNbrOffsetMaxNeighbor;
1677 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1678 conf->dot11MeshHWMPmaxPREQretries =
1679 nconf->dot11MeshHWMPmaxPREQretries;
1680 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1681 conf->path_refresh_time = nconf->path_refresh_time;
1682 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1683 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1684 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1685 conf->dot11MeshHWMPactivePathTimeout =
1686 nconf->dot11MeshHWMPactivePathTimeout;
1687 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1688 conf->dot11MeshHWMPpreqMinInterval =
1689 nconf->dot11MeshHWMPpreqMinInterval;
1690 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1691 conf->dot11MeshHWMPperrMinInterval =
1692 nconf->dot11MeshHWMPperrMinInterval;
1693 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1694 mask))
1695 conf->dot11MeshHWMPnetDiameterTraversalTime =
1696 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1697 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1698 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1699 ieee80211_mesh_root_setup(ifmsh);
1700 }
1701 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1702 /* our current gate announcement implementation rides on root
1703 * announcements, so require this ifmsh to also be a root node
1704 * */
1705 if (nconf->dot11MeshGateAnnouncementProtocol &&
1706 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1707 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1708 ieee80211_mesh_root_setup(ifmsh);
1709 }
1710 conf->dot11MeshGateAnnouncementProtocol =
1711 nconf->dot11MeshGateAnnouncementProtocol;
1712 }
1713 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1714 conf->dot11MeshHWMPRannInterval =
1715 nconf->dot11MeshHWMPRannInterval;
1716 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1717 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1718 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1719 /* our RSSI threshold implementation is supported only for
1720 * devices that report signal in dBm.
1721 */
1722 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1723 return -ENOTSUPP;
1724 conf->rssi_threshold = nconf->rssi_threshold;
1725 }
1726 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1727 conf->ht_opmode = nconf->ht_opmode;
1728 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1729 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1730 }
1731 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1732 conf->dot11MeshHWMPactivePathToRootTimeout =
1733 nconf->dot11MeshHWMPactivePathToRootTimeout;
1734 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1735 conf->dot11MeshHWMProotInterval =
1736 nconf->dot11MeshHWMProotInterval;
1737 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1738 conf->dot11MeshHWMPconfirmationInterval =
1739 nconf->dot11MeshHWMPconfirmationInterval;
1740 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1741 conf->power_mode = nconf->power_mode;
1742 ieee80211_mps_local_status_update(sdata);
1743 }
1744 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1745 conf->dot11MeshAwakeWindowDuration =
1746 nconf->dot11MeshAwakeWindowDuration;
1747 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1748 conf->plink_timeout = nconf->plink_timeout;
1749 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1750 return 0;
1751 }
1752
1753 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1754 const struct mesh_config *conf,
1755 const struct mesh_setup *setup)
1756 {
1757 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1758 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1759 int err;
1760
1761 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1762 err = copy_mesh_setup(ifmsh, setup);
1763 if (err)
1764 return err;
1765
1766 /* can mesh use other SMPS modes? */
1767 sdata->smps_mode = IEEE80211_SMPS_OFF;
1768 sdata->needed_rx_chains = sdata->local->rx_chains;
1769
1770 mutex_lock(&sdata->local->mtx);
1771 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1772 IEEE80211_CHANCTX_SHARED);
1773 mutex_unlock(&sdata->local->mtx);
1774 if (err)
1775 return err;
1776
1777 return ieee80211_start_mesh(sdata);
1778 }
1779
1780 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1781 {
1782 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1783
1784 ieee80211_stop_mesh(sdata);
1785 mutex_lock(&sdata->local->mtx);
1786 ieee80211_vif_release_channel(sdata);
1787 mutex_unlock(&sdata->local->mtx);
1788
1789 return 0;
1790 }
1791 #endif
1792
1793 static int ieee80211_change_bss(struct wiphy *wiphy,
1794 struct net_device *dev,
1795 struct bss_parameters *params)
1796 {
1797 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1798 enum ieee80211_band band;
1799 u32 changed = 0;
1800
1801 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1802 return -ENOENT;
1803
1804 band = ieee80211_get_sdata_band(sdata);
1805
1806 if (params->use_cts_prot >= 0) {
1807 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1808 changed |= BSS_CHANGED_ERP_CTS_PROT;
1809 }
1810 if (params->use_short_preamble >= 0) {
1811 sdata->vif.bss_conf.use_short_preamble =
1812 params->use_short_preamble;
1813 changed |= BSS_CHANGED_ERP_PREAMBLE;
1814 }
1815
1816 if (!sdata->vif.bss_conf.use_short_slot &&
1817 band == IEEE80211_BAND_5GHZ) {
1818 sdata->vif.bss_conf.use_short_slot = true;
1819 changed |= BSS_CHANGED_ERP_SLOT;
1820 }
1821
1822 if (params->use_short_slot_time >= 0) {
1823 sdata->vif.bss_conf.use_short_slot =
1824 params->use_short_slot_time;
1825 changed |= BSS_CHANGED_ERP_SLOT;
1826 }
1827
1828 if (params->basic_rates) {
1829 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1830 wiphy->bands[band],
1831 params->basic_rates,
1832 params->basic_rates_len,
1833 &sdata->vif.bss_conf.basic_rates);
1834 changed |= BSS_CHANGED_BASIC_RATES;
1835 }
1836
1837 if (params->ap_isolate >= 0) {
1838 if (params->ap_isolate)
1839 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1840 else
1841 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1842 }
1843
1844 if (params->ht_opmode >= 0) {
1845 sdata->vif.bss_conf.ht_operation_mode =
1846 (u16) params->ht_opmode;
1847 changed |= BSS_CHANGED_HT;
1848 }
1849
1850 if (params->p2p_ctwindow >= 0) {
1851 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1852 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1853 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1854 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1855 changed |= BSS_CHANGED_P2P_PS;
1856 }
1857
1858 if (params->p2p_opp_ps > 0) {
1859 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1860 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1861 changed |= BSS_CHANGED_P2P_PS;
1862 } else if (params->p2p_opp_ps == 0) {
1863 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1864 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
1865 changed |= BSS_CHANGED_P2P_PS;
1866 }
1867
1868 ieee80211_bss_info_change_notify(sdata, changed);
1869
1870 return 0;
1871 }
1872
1873 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1874 struct net_device *dev,
1875 struct ieee80211_txq_params *params)
1876 {
1877 struct ieee80211_local *local = wiphy_priv(wiphy);
1878 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1879 struct ieee80211_tx_queue_params p;
1880
1881 if (!local->ops->conf_tx)
1882 return -EOPNOTSUPP;
1883
1884 if (local->hw.queues < IEEE80211_NUM_ACS)
1885 return -EOPNOTSUPP;
1886
1887 memset(&p, 0, sizeof(p));
1888 p.aifs = params->aifs;
1889 p.cw_max = params->cwmax;
1890 p.cw_min = params->cwmin;
1891 p.txop = params->txop;
1892
1893 /*
1894 * Setting tx queue params disables u-apsd because it's only
1895 * called in master mode.
1896 */
1897 p.uapsd = false;
1898
1899 sdata->tx_conf[params->ac] = p;
1900 if (drv_conf_tx(local, sdata, params->ac, &p)) {
1901 wiphy_debug(local->hw.wiphy,
1902 "failed to set TX queue parameters for AC %d\n",
1903 params->ac);
1904 return -EINVAL;
1905 }
1906
1907 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1908
1909 return 0;
1910 }
1911
1912 #ifdef CONFIG_PM
1913 static int ieee80211_suspend(struct wiphy *wiphy,
1914 struct cfg80211_wowlan *wowlan)
1915 {
1916 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1917 }
1918
1919 static int ieee80211_resume(struct wiphy *wiphy)
1920 {
1921 return __ieee80211_resume(wiphy_priv(wiphy));
1922 }
1923 #else
1924 #define ieee80211_suspend NULL
1925 #define ieee80211_resume NULL
1926 #endif
1927
1928 static int ieee80211_scan(struct wiphy *wiphy,
1929 struct cfg80211_scan_request *req)
1930 {
1931 struct ieee80211_sub_if_data *sdata;
1932
1933 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1934
1935 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1936 case NL80211_IFTYPE_STATION:
1937 case NL80211_IFTYPE_ADHOC:
1938 case NL80211_IFTYPE_MESH_POINT:
1939 case NL80211_IFTYPE_P2P_CLIENT:
1940 case NL80211_IFTYPE_P2P_DEVICE:
1941 break;
1942 case NL80211_IFTYPE_P2P_GO:
1943 if (sdata->local->ops->hw_scan)
1944 break;
1945 /*
1946 * FIXME: implement NoA while scanning in software,
1947 * for now fall through to allow scanning only when
1948 * beaconing hasn't been configured yet
1949 */
1950 case NL80211_IFTYPE_AP:
1951 /*
1952 * If the scan has been forced (and the driver supports
1953 * forcing), don't care about being beaconing already.
1954 * This will create problems to the attached stations (e.g. all
1955 * the frames sent while scanning on other channel will be
1956 * lost)
1957 */
1958 if (sdata->u.ap.beacon &&
1959 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1960 !(req->flags & NL80211_SCAN_FLAG_AP)))
1961 return -EOPNOTSUPP;
1962 break;
1963 default:
1964 return -EOPNOTSUPP;
1965 }
1966
1967 return ieee80211_request_scan(sdata, req);
1968 }
1969
1970 static int
1971 ieee80211_sched_scan_start(struct wiphy *wiphy,
1972 struct net_device *dev,
1973 struct cfg80211_sched_scan_request *req)
1974 {
1975 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1976
1977 if (!sdata->local->ops->sched_scan_start)
1978 return -EOPNOTSUPP;
1979
1980 return ieee80211_request_sched_scan_start(sdata, req);
1981 }
1982
1983 static int
1984 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1985 {
1986 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1987
1988 if (!sdata->local->ops->sched_scan_stop)
1989 return -EOPNOTSUPP;
1990
1991 return ieee80211_request_sched_scan_stop(sdata);
1992 }
1993
1994 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1995 struct cfg80211_auth_request *req)
1996 {
1997 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1998 }
1999
2000 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2001 struct cfg80211_assoc_request *req)
2002 {
2003 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2004 }
2005
2006 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2007 struct cfg80211_deauth_request *req)
2008 {
2009 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2010 }
2011
2012 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2013 struct cfg80211_disassoc_request *req)
2014 {
2015 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2016 }
2017
2018 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2019 struct cfg80211_ibss_params *params)
2020 {
2021 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2022 }
2023
2024 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2025 {
2026 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2027 }
2028
2029 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2030 struct ocb_setup *setup)
2031 {
2032 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2033 }
2034
2035 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2036 {
2037 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2038 }
2039
2040 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2041 int rate[IEEE80211_NUM_BANDS])
2042 {
2043 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2044
2045 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2046 sizeof(int) * IEEE80211_NUM_BANDS);
2047
2048 return 0;
2049 }
2050
2051 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2052 {
2053 struct ieee80211_local *local = wiphy_priv(wiphy);
2054 int err;
2055
2056 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2057 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2058
2059 if (err)
2060 return err;
2061 }
2062
2063 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2064 (changed & WIPHY_PARAM_DYN_ACK)) {
2065 s16 coverage_class;
2066
2067 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2068 wiphy->coverage_class : -1;
2069 err = drv_set_coverage_class(local, coverage_class);
2070
2071 if (err)
2072 return err;
2073 }
2074
2075 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2076 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2077
2078 if (err)
2079 return err;
2080 }
2081
2082 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2083 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2084 return -EINVAL;
2085 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2086 }
2087 if (changed & WIPHY_PARAM_RETRY_LONG) {
2088 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2089 return -EINVAL;
2090 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2091 }
2092 if (changed &
2093 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2094 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2095
2096 return 0;
2097 }
2098
2099 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2100 struct wireless_dev *wdev,
2101 enum nl80211_tx_power_setting type, int mbm)
2102 {
2103 struct ieee80211_local *local = wiphy_priv(wiphy);
2104 struct ieee80211_sub_if_data *sdata;
2105
2106 if (wdev) {
2107 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2108
2109 switch (type) {
2110 case NL80211_TX_POWER_AUTOMATIC:
2111 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2112 break;
2113 case NL80211_TX_POWER_LIMITED:
2114 case NL80211_TX_POWER_FIXED:
2115 if (mbm < 0 || (mbm % 100))
2116 return -EOPNOTSUPP;
2117 sdata->user_power_level = MBM_TO_DBM(mbm);
2118 break;
2119 }
2120
2121 ieee80211_recalc_txpower(sdata);
2122
2123 return 0;
2124 }
2125
2126 switch (type) {
2127 case NL80211_TX_POWER_AUTOMATIC:
2128 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2129 break;
2130 case NL80211_TX_POWER_LIMITED:
2131 case NL80211_TX_POWER_FIXED:
2132 if (mbm < 0 || (mbm % 100))
2133 return -EOPNOTSUPP;
2134 local->user_power_level = MBM_TO_DBM(mbm);
2135 break;
2136 }
2137
2138 mutex_lock(&local->iflist_mtx);
2139 list_for_each_entry(sdata, &local->interfaces, list)
2140 sdata->user_power_level = local->user_power_level;
2141 list_for_each_entry(sdata, &local->interfaces, list)
2142 ieee80211_recalc_txpower(sdata);
2143 mutex_unlock(&local->iflist_mtx);
2144
2145 return 0;
2146 }
2147
2148 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2149 struct wireless_dev *wdev,
2150 int *dbm)
2151 {
2152 struct ieee80211_local *local = wiphy_priv(wiphy);
2153 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2154
2155 if (local->ops->get_txpower)
2156 return drv_get_txpower(local, sdata, dbm);
2157
2158 if (!local->use_chanctx)
2159 *dbm = local->hw.conf.power_level;
2160 else
2161 *dbm = sdata->vif.bss_conf.txpower;
2162
2163 return 0;
2164 }
2165
2166 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2167 const u8 *addr)
2168 {
2169 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2170
2171 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2172
2173 return 0;
2174 }
2175
2176 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2177 {
2178 struct ieee80211_local *local = wiphy_priv(wiphy);
2179
2180 drv_rfkill_poll(local);
2181 }
2182
2183 #ifdef CONFIG_NL80211_TESTMODE
2184 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2185 struct wireless_dev *wdev,
2186 void *data, int len)
2187 {
2188 struct ieee80211_local *local = wiphy_priv(wiphy);
2189 struct ieee80211_vif *vif = NULL;
2190
2191 if (!local->ops->testmode_cmd)
2192 return -EOPNOTSUPP;
2193
2194 if (wdev) {
2195 struct ieee80211_sub_if_data *sdata;
2196
2197 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2198 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2199 vif = &sdata->vif;
2200 }
2201
2202 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2203 }
2204
2205 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2206 struct sk_buff *skb,
2207 struct netlink_callback *cb,
2208 void *data, int len)
2209 {
2210 struct ieee80211_local *local = wiphy_priv(wiphy);
2211
2212 if (!local->ops->testmode_dump)
2213 return -EOPNOTSUPP;
2214
2215 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2216 }
2217 #endif
2218
2219 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2220 enum ieee80211_smps_mode smps_mode)
2221 {
2222 struct sta_info *sta;
2223 enum ieee80211_smps_mode old_req;
2224 int i;
2225
2226 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2227 return -EINVAL;
2228
2229 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2230 return 0;
2231
2232 old_req = sdata->u.ap.req_smps;
2233 sdata->u.ap.req_smps = smps_mode;
2234
2235 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2236 if (old_req == smps_mode ||
2237 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2238 return 0;
2239
2240 /* If no associated stations, there's no need to do anything */
2241 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2242 sdata->smps_mode = smps_mode;
2243 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2244 return 0;
2245 }
2246
2247 ht_dbg(sdata,
2248 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2249 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2250
2251 mutex_lock(&sdata->local->sta_mtx);
2252 for (i = 0; i < STA_HASH_SIZE; i++) {
2253 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2254 lockdep_is_held(&sdata->local->sta_mtx));
2255 sta;
2256 sta = rcu_dereference_protected(sta->hnext,
2257 lockdep_is_held(&sdata->local->sta_mtx))) {
2258 /*
2259 * Only stations associated to our AP and
2260 * associated VLANs
2261 */
2262 if (sta->sdata->bss != &sdata->u.ap)
2263 continue;
2264
2265 /* This station doesn't support MIMO - skip it */
2266 if (sta_info_tx_streams(sta) == 1)
2267 continue;
2268
2269 /*
2270 * Don't wake up a STA just to send the action frame
2271 * unless we are getting more restrictive.
2272 */
2273 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2274 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2275 smps_mode)) {
2276 ht_dbg(sdata,
2277 "Won't send SMPS to sleeping STA %pM\n",
2278 sta->sta.addr);
2279 continue;
2280 }
2281
2282 /*
2283 * If the STA is not authorized, wait until it gets
2284 * authorized and the action frame will be sent then.
2285 */
2286 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2287 continue;
2288
2289 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2290 ieee80211_send_smps_action(sdata, smps_mode,
2291 sta->sta.addr,
2292 sdata->vif.bss_conf.bssid);
2293 }
2294 }
2295 mutex_unlock(&sdata->local->sta_mtx);
2296
2297 sdata->smps_mode = smps_mode;
2298 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2299
2300 return 0;
2301 }
2302
2303 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2304 enum ieee80211_smps_mode smps_mode)
2305 {
2306 const u8 *ap;
2307 enum ieee80211_smps_mode old_req;
2308 int err;
2309
2310 lockdep_assert_held(&sdata->wdev.mtx);
2311
2312 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2313 return -EINVAL;
2314
2315 old_req = sdata->u.mgd.req_smps;
2316 sdata->u.mgd.req_smps = smps_mode;
2317
2318 if (old_req == smps_mode &&
2319 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2320 return 0;
2321
2322 /*
2323 * If not associated, or current association is not an HT
2324 * association, there's no need to do anything, just store
2325 * the new value until we associate.
2326 */
2327 if (!sdata->u.mgd.associated ||
2328 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2329 return 0;
2330
2331 ap = sdata->u.mgd.associated->bssid;
2332
2333 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2334 if (sdata->u.mgd.powersave)
2335 smps_mode = IEEE80211_SMPS_DYNAMIC;
2336 else
2337 smps_mode = IEEE80211_SMPS_OFF;
2338 }
2339
2340 /* send SM PS frame to AP */
2341 err = ieee80211_send_smps_action(sdata, smps_mode,
2342 ap, ap);
2343 if (err)
2344 sdata->u.mgd.req_smps = old_req;
2345
2346 return err;
2347 }
2348
2349 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2350 bool enabled, int timeout)
2351 {
2352 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2353 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2354
2355 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2356 return -EOPNOTSUPP;
2357
2358 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2359 return -EOPNOTSUPP;
2360
2361 if (enabled == sdata->u.mgd.powersave &&
2362 timeout == local->dynamic_ps_forced_timeout)
2363 return 0;
2364
2365 sdata->u.mgd.powersave = enabled;
2366 local->dynamic_ps_forced_timeout = timeout;
2367
2368 /* no change, but if automatic follow powersave */
2369 sdata_lock(sdata);
2370 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2371 sdata_unlock(sdata);
2372
2373 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2374 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2375
2376 ieee80211_recalc_ps(local, -1);
2377 ieee80211_recalc_ps_vif(sdata);
2378
2379 return 0;
2380 }
2381
2382 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2383 struct net_device *dev,
2384 s32 rssi_thold, u32 rssi_hyst)
2385 {
2386 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2387 struct ieee80211_vif *vif = &sdata->vif;
2388 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2389
2390 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2391 rssi_hyst == bss_conf->cqm_rssi_hyst)
2392 return 0;
2393
2394 bss_conf->cqm_rssi_thold = rssi_thold;
2395 bss_conf->cqm_rssi_hyst = rssi_hyst;
2396
2397 /* tell the driver upon association, unless already associated */
2398 if (sdata->u.mgd.associated &&
2399 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2400 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2401
2402 return 0;
2403 }
2404
2405 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2406 struct net_device *dev,
2407 const u8 *addr,
2408 const struct cfg80211_bitrate_mask *mask)
2409 {
2410 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2411 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2412 int i, ret;
2413
2414 if (!ieee80211_sdata_running(sdata))
2415 return -ENETDOWN;
2416
2417 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2418 ret = drv_set_bitrate_mask(local, sdata, mask);
2419 if (ret)
2420 return ret;
2421 }
2422
2423 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2424 struct ieee80211_supported_band *sband = wiphy->bands[i];
2425 int j;
2426
2427 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2428 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2429 sizeof(mask->control[i].ht_mcs));
2430
2431 sdata->rc_has_mcs_mask[i] = false;
2432 if (!sband)
2433 continue;
2434
2435 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2436 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2437 sdata->rc_has_mcs_mask[i] = true;
2438 break;
2439 }
2440 }
2441
2442 return 0;
2443 }
2444
2445 static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
2446 struct ieee80211_roc_work *new_roc,
2447 struct ieee80211_roc_work *cur_roc)
2448 {
2449 unsigned long j = jiffies;
2450 unsigned long cur_roc_end = cur_roc->hw_start_time +
2451 msecs_to_jiffies(cur_roc->duration);
2452 struct ieee80211_roc_work *next_roc;
2453 int new_dur;
2454
2455 if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
2456 return false;
2457
2458 if (time_after(j + IEEE80211_ROC_MIN_LEFT, cur_roc_end))
2459 return false;
2460
2461 ieee80211_handle_roc_started(new_roc);
2462
2463 new_dur = new_roc->duration - jiffies_to_msecs(cur_roc_end - j);
2464
2465 /* cur_roc is long enough - add new_roc to the dependents list. */
2466 if (new_dur <= 0) {
2467 list_add_tail(&new_roc->list, &cur_roc->dependents);
2468 return true;
2469 }
2470
2471 new_roc->duration = new_dur;
2472
2473 /*
2474 * if cur_roc was already coalesced before, we might
2475 * want to extend the next roc instead of adding
2476 * a new one.
2477 */
2478 next_roc = list_entry(cur_roc->list.next,
2479 struct ieee80211_roc_work, list);
2480 if (&next_roc->list != &local->roc_list &&
2481 next_roc->chan == new_roc->chan &&
2482 next_roc->sdata == new_roc->sdata &&
2483 !WARN_ON(next_roc->started)) {
2484 list_add_tail(&new_roc->list, &next_roc->dependents);
2485 next_roc->duration = max(next_roc->duration,
2486 new_roc->duration);
2487 next_roc->type = max(next_roc->type, new_roc->type);
2488 return true;
2489 }
2490
2491 /* add right after cur_roc */
2492 list_add(&new_roc->list, &cur_roc->list);
2493
2494 return true;
2495 }
2496
2497 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2498 struct ieee80211_sub_if_data *sdata,
2499 struct ieee80211_channel *channel,
2500 unsigned int duration, u64 *cookie,
2501 struct sk_buff *txskb,
2502 enum ieee80211_roc_type type)
2503 {
2504 struct ieee80211_roc_work *roc, *tmp;
2505 bool queued = false;
2506 int ret;
2507
2508 lockdep_assert_held(&local->mtx);
2509
2510 if (local->use_chanctx && !local->ops->remain_on_channel)
2511 return -EOPNOTSUPP;
2512
2513 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2514 if (!roc)
2515 return -ENOMEM;
2516
2517 /*
2518 * If the duration is zero, then the driver
2519 * wouldn't actually do anything. Set it to
2520 * 10 for now.
2521 *
2522 * TODO: cancel the off-channel operation
2523 * when we get the SKB's TX status and
2524 * the wait time was zero before.
2525 */
2526 if (!duration)
2527 duration = 10;
2528
2529 roc->chan = channel;
2530 roc->duration = duration;
2531 roc->req_duration = duration;
2532 roc->frame = txskb;
2533 roc->type = type;
2534 roc->mgmt_tx_cookie = (unsigned long)txskb;
2535 roc->sdata = sdata;
2536 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2537 INIT_LIST_HEAD(&roc->dependents);
2538
2539 /*
2540 * cookie is either the roc cookie (for normal roc)
2541 * or the SKB (for mgmt TX)
2542 */
2543 if (!txskb) {
2544 /* local->mtx protects this */
2545 local->roc_cookie_counter++;
2546 roc->cookie = local->roc_cookie_counter;
2547 /* wow, you wrapped 64 bits ... more likely a bug */
2548 if (WARN_ON(roc->cookie == 0)) {
2549 roc->cookie = 1;
2550 local->roc_cookie_counter++;
2551 }
2552 *cookie = roc->cookie;
2553 } else {
2554 *cookie = (unsigned long)txskb;
2555 }
2556
2557 /* if there's one pending or we're scanning, queue this one */
2558 if (!list_empty(&local->roc_list) ||
2559 local->scanning || local->radar_detect_enabled)
2560 goto out_check_combine;
2561
2562 /* if not HW assist, just queue & schedule work */
2563 if (!local->ops->remain_on_channel) {
2564 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2565 goto out_queue;
2566 }
2567
2568 /* otherwise actually kick it off here (for error handling) */
2569
2570 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2571 if (ret) {
2572 kfree(roc);
2573 return ret;
2574 }
2575
2576 roc->started = true;
2577 goto out_queue;
2578
2579 out_check_combine:
2580 list_for_each_entry(tmp, &local->roc_list, list) {
2581 if (tmp->chan != channel || tmp->sdata != sdata)
2582 continue;
2583
2584 /*
2585 * Extend this ROC if possible:
2586 *
2587 * If it hasn't started yet, just increase the duration
2588 * and add the new one to the list of dependents.
2589 * If the type of the new ROC has higher priority, modify the
2590 * type of the previous one to match that of the new one.
2591 */
2592 if (!tmp->started) {
2593 list_add_tail(&roc->list, &tmp->dependents);
2594 tmp->duration = max(tmp->duration, roc->duration);
2595 tmp->type = max(tmp->type, roc->type);
2596 queued = true;
2597 break;
2598 }
2599
2600 /* If it has already started, it's more difficult ... */
2601 if (local->ops->remain_on_channel) {
2602 /*
2603 * In the offloaded ROC case, if it hasn't begun, add
2604 * this new one to the dependent list to be handled
2605 * when the master one begins. If it has begun,
2606 * check that there's still a minimum time left and
2607 * if so, start this one, transmitting the frame, but
2608 * add it to the list directly after this one with
2609 * a reduced time so we'll ask the driver to execute
2610 * it right after finishing the previous one, in the
2611 * hope that it'll also be executed right afterwards,
2612 * effectively extending the old one.
2613 * If there's no minimum time left, just add it to the
2614 * normal list.
2615 * TODO: the ROC type is ignored here, assuming that it
2616 * is better to immediately use the current ROC.
2617 */
2618 if (!tmp->hw_begun) {
2619 list_add_tail(&roc->list, &tmp->dependents);
2620 queued = true;
2621 break;
2622 }
2623
2624 if (ieee80211_coalesce_started_roc(local, roc, tmp))
2625 queued = true;
2626 } else if (del_timer_sync(&tmp->work.timer)) {
2627 unsigned long new_end;
2628
2629 /*
2630 * In the software ROC case, cancel the timer, if
2631 * that fails then the finish work is already
2632 * queued/pending and thus we queue the new ROC
2633 * normally, if that succeeds then we can extend
2634 * the timer duration and TX the frame (if any.)
2635 */
2636
2637 list_add_tail(&roc->list, &tmp->dependents);
2638 queued = true;
2639
2640 new_end = jiffies + msecs_to_jiffies(roc->duration);
2641
2642 /* ok, it was started & we canceled timer */
2643 if (time_after(new_end, tmp->work.timer.expires))
2644 mod_timer(&tmp->work.timer, new_end);
2645 else
2646 add_timer(&tmp->work.timer);
2647
2648 ieee80211_handle_roc_started(roc);
2649 }
2650 break;
2651 }
2652
2653 out_queue:
2654 if (!queued)
2655 list_add_tail(&roc->list, &local->roc_list);
2656
2657 return 0;
2658 }
2659
2660 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2661 struct wireless_dev *wdev,
2662 struct ieee80211_channel *chan,
2663 unsigned int duration,
2664 u64 *cookie)
2665 {
2666 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2667 struct ieee80211_local *local = sdata->local;
2668 int ret;
2669
2670 mutex_lock(&local->mtx);
2671 ret = ieee80211_start_roc_work(local, sdata, chan,
2672 duration, cookie, NULL,
2673 IEEE80211_ROC_TYPE_NORMAL);
2674 mutex_unlock(&local->mtx);
2675
2676 return ret;
2677 }
2678
2679 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2680 u64 cookie, bool mgmt_tx)
2681 {
2682 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2683 int ret;
2684
2685 mutex_lock(&local->mtx);
2686 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2687 struct ieee80211_roc_work *dep, *tmp2;
2688
2689 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2690 if (!mgmt_tx && dep->cookie != cookie)
2691 continue;
2692 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2693 continue;
2694 /* found dependent item -- just remove it */
2695 list_del(&dep->list);
2696 mutex_unlock(&local->mtx);
2697
2698 ieee80211_roc_notify_destroy(dep, true);
2699 return 0;
2700 }
2701
2702 if (!mgmt_tx && roc->cookie != cookie)
2703 continue;
2704 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2705 continue;
2706
2707 found = roc;
2708 break;
2709 }
2710
2711 if (!found) {
2712 mutex_unlock(&local->mtx);
2713 return -ENOENT;
2714 }
2715
2716 /*
2717 * We found the item to cancel, so do that. Note that it
2718 * may have dependents, which we also cancel (and send
2719 * the expired signal for.) Not doing so would be quite
2720 * tricky here, but we may need to fix it later.
2721 */
2722
2723 if (local->ops->remain_on_channel) {
2724 if (found->started) {
2725 ret = drv_cancel_remain_on_channel(local);
2726 if (WARN_ON_ONCE(ret)) {
2727 mutex_unlock(&local->mtx);
2728 return ret;
2729 }
2730 }
2731
2732 list_del(&found->list);
2733
2734 if (found->started)
2735 ieee80211_start_next_roc(local);
2736 mutex_unlock(&local->mtx);
2737
2738 ieee80211_roc_notify_destroy(found, true);
2739 } else {
2740 /* work may be pending so use it all the time */
2741 found->abort = true;
2742 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2743
2744 mutex_unlock(&local->mtx);
2745
2746 /* work will clean up etc */
2747 flush_delayed_work(&found->work);
2748 WARN_ON(!found->to_be_freed);
2749 kfree(found);
2750 }
2751
2752 return 0;
2753 }
2754
2755 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2756 struct wireless_dev *wdev,
2757 u64 cookie)
2758 {
2759 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2760 struct ieee80211_local *local = sdata->local;
2761
2762 return ieee80211_cancel_roc(local, cookie, false);
2763 }
2764
2765 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2766 struct net_device *dev,
2767 struct cfg80211_chan_def *chandef,
2768 u32 cac_time_ms)
2769 {
2770 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2771 struct ieee80211_local *local = sdata->local;
2772 int err;
2773
2774 mutex_lock(&local->mtx);
2775 if (!list_empty(&local->roc_list) || local->scanning) {
2776 err = -EBUSY;
2777 goto out_unlock;
2778 }
2779
2780 /* whatever, but channel contexts should not complain about that one */
2781 sdata->smps_mode = IEEE80211_SMPS_OFF;
2782 sdata->needed_rx_chains = local->rx_chains;
2783
2784 err = ieee80211_vif_use_channel(sdata, chandef,
2785 IEEE80211_CHANCTX_SHARED);
2786 if (err)
2787 goto out_unlock;
2788
2789 ieee80211_queue_delayed_work(&sdata->local->hw,
2790 &sdata->dfs_cac_timer_work,
2791 msecs_to_jiffies(cac_time_ms));
2792
2793 out_unlock:
2794 mutex_unlock(&local->mtx);
2795 return err;
2796 }
2797
2798 static struct cfg80211_beacon_data *
2799 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2800 {
2801 struct cfg80211_beacon_data *new_beacon;
2802 u8 *pos;
2803 int len;
2804
2805 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2806 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2807 beacon->probe_resp_len;
2808
2809 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2810 if (!new_beacon)
2811 return NULL;
2812
2813 pos = (u8 *)(new_beacon + 1);
2814 if (beacon->head_len) {
2815 new_beacon->head_len = beacon->head_len;
2816 new_beacon->head = pos;
2817 memcpy(pos, beacon->head, beacon->head_len);
2818 pos += beacon->head_len;
2819 }
2820 if (beacon->tail_len) {
2821 new_beacon->tail_len = beacon->tail_len;
2822 new_beacon->tail = pos;
2823 memcpy(pos, beacon->tail, beacon->tail_len);
2824 pos += beacon->tail_len;
2825 }
2826 if (beacon->beacon_ies_len) {
2827 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2828 new_beacon->beacon_ies = pos;
2829 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2830 pos += beacon->beacon_ies_len;
2831 }
2832 if (beacon->proberesp_ies_len) {
2833 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2834 new_beacon->proberesp_ies = pos;
2835 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2836 pos += beacon->proberesp_ies_len;
2837 }
2838 if (beacon->assocresp_ies_len) {
2839 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2840 new_beacon->assocresp_ies = pos;
2841 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2842 pos += beacon->assocresp_ies_len;
2843 }
2844 if (beacon->probe_resp_len) {
2845 new_beacon->probe_resp_len = beacon->probe_resp_len;
2846 beacon->probe_resp = pos;
2847 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2848 pos += beacon->probe_resp_len;
2849 }
2850
2851 return new_beacon;
2852 }
2853
2854 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2855 {
2856 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2857
2858 ieee80211_queue_work(&sdata->local->hw,
2859 &sdata->csa_finalize_work);
2860 }
2861 EXPORT_SYMBOL(ieee80211_csa_finish);
2862
2863 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2864 u32 *changed)
2865 {
2866 int err;
2867
2868 switch (sdata->vif.type) {
2869 case NL80211_IFTYPE_AP:
2870 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2871 NULL);
2872 kfree(sdata->u.ap.next_beacon);
2873 sdata->u.ap.next_beacon = NULL;
2874
2875 if (err < 0)
2876 return err;
2877 *changed |= err;
2878 break;
2879 case NL80211_IFTYPE_ADHOC:
2880 err = ieee80211_ibss_finish_csa(sdata);
2881 if (err < 0)
2882 return err;
2883 *changed |= err;
2884 break;
2885 #ifdef CONFIG_MAC80211_MESH
2886 case NL80211_IFTYPE_MESH_POINT:
2887 err = ieee80211_mesh_finish_csa(sdata);
2888 if (err < 0)
2889 return err;
2890 *changed |= err;
2891 break;
2892 #endif
2893 default:
2894 WARN_ON(1);
2895 return -EINVAL;
2896 }
2897
2898 return 0;
2899 }
2900
2901 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2902 {
2903 struct ieee80211_local *local = sdata->local;
2904 u32 changed = 0;
2905 int err;
2906
2907 sdata_assert_lock(sdata);
2908 lockdep_assert_held(&local->mtx);
2909 lockdep_assert_held(&local->chanctx_mtx);
2910
2911 /*
2912 * using reservation isn't immediate as it may be deferred until later
2913 * with multi-vif. once reservation is complete it will re-schedule the
2914 * work with no reserved_chanctx so verify chandef to check if it
2915 * completed successfully
2916 */
2917
2918 if (sdata->reserved_chanctx) {
2919 /*
2920 * with multi-vif csa driver may call ieee80211_csa_finish()
2921 * many times while waiting for other interfaces to use their
2922 * reservations
2923 */
2924 if (sdata->reserved_ready)
2925 return 0;
2926
2927 return ieee80211_vif_use_reserved_context(sdata);
2928 }
2929
2930 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2931 &sdata->csa_chandef))
2932 return -EINVAL;
2933
2934 sdata->vif.csa_active = false;
2935
2936 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2937 if (err)
2938 return err;
2939
2940 ieee80211_bss_info_change_notify(sdata, changed);
2941
2942 if (sdata->csa_block_tx) {
2943 ieee80211_wake_vif_queues(local, sdata,
2944 IEEE80211_QUEUE_STOP_REASON_CSA);
2945 sdata->csa_block_tx = false;
2946 }
2947
2948 err = drv_post_channel_switch(sdata);
2949 if (err)
2950 return err;
2951
2952 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2953
2954 return 0;
2955 }
2956
2957 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2958 {
2959 if (__ieee80211_csa_finalize(sdata)) {
2960 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2961 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2962 GFP_KERNEL);
2963 }
2964 }
2965
2966 void ieee80211_csa_finalize_work(struct work_struct *work)
2967 {
2968 struct ieee80211_sub_if_data *sdata =
2969 container_of(work, struct ieee80211_sub_if_data,
2970 csa_finalize_work);
2971 struct ieee80211_local *local = sdata->local;
2972
2973 sdata_lock(sdata);
2974 mutex_lock(&local->mtx);
2975 mutex_lock(&local->chanctx_mtx);
2976
2977 /* AP might have been stopped while waiting for the lock. */
2978 if (!sdata->vif.csa_active)
2979 goto unlock;
2980
2981 if (!ieee80211_sdata_running(sdata))
2982 goto unlock;
2983
2984 ieee80211_csa_finalize(sdata);
2985
2986 unlock:
2987 mutex_unlock(&local->chanctx_mtx);
2988 mutex_unlock(&local->mtx);
2989 sdata_unlock(sdata);
2990 }
2991
2992 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2993 struct cfg80211_csa_settings *params,
2994 u32 *changed)
2995 {
2996 struct ieee80211_csa_settings csa = {};
2997 int err;
2998
2999 switch (sdata->vif.type) {
3000 case NL80211_IFTYPE_AP:
3001 sdata->u.ap.next_beacon =
3002 cfg80211_beacon_dup(&params->beacon_after);
3003 if (!sdata->u.ap.next_beacon)
3004 return -ENOMEM;
3005
3006 /*
3007 * With a count of 0, we don't have to wait for any
3008 * TBTT before switching, so complete the CSA
3009 * immediately. In theory, with a count == 1 we
3010 * should delay the switch until just before the next
3011 * TBTT, but that would complicate things so we switch
3012 * immediately too. If we would delay the switch
3013 * until the next TBTT, we would have to set the probe
3014 * response here.
3015 *
3016 * TODO: A channel switch with count <= 1 without
3017 * sending a CSA action frame is kind of useless,
3018 * because the clients won't know we're changing
3019 * channels. The action frame must be implemented
3020 * either here or in the userspace.
3021 */
3022 if (params->count <= 1)
3023 break;
3024
3025 if ((params->n_counter_offsets_beacon >
3026 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3027 (params->n_counter_offsets_presp >
3028 IEEE80211_MAX_CSA_COUNTERS_NUM))
3029 return -EINVAL;
3030
3031 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3032 csa.counter_offsets_presp = params->counter_offsets_presp;
3033 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3034 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3035 csa.count = params->count;
3036
3037 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3038 if (err < 0) {
3039 kfree(sdata->u.ap.next_beacon);
3040 return err;
3041 }
3042 *changed |= err;
3043
3044 break;
3045 case NL80211_IFTYPE_ADHOC:
3046 if (!sdata->vif.bss_conf.ibss_joined)
3047 return -EINVAL;
3048
3049 if (params->chandef.width != sdata->u.ibss.chandef.width)
3050 return -EINVAL;
3051
3052 switch (params->chandef.width) {
3053 case NL80211_CHAN_WIDTH_40:
3054 if (cfg80211_get_chandef_type(&params->chandef) !=
3055 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3056 return -EINVAL;
3057 case NL80211_CHAN_WIDTH_5:
3058 case NL80211_CHAN_WIDTH_10:
3059 case NL80211_CHAN_WIDTH_20_NOHT:
3060 case NL80211_CHAN_WIDTH_20:
3061 break;
3062 default:
3063 return -EINVAL;
3064 }
3065
3066 /* changes into another band are not supported */
3067 if (sdata->u.ibss.chandef.chan->band !=
3068 params->chandef.chan->band)
3069 return -EINVAL;
3070
3071 /* see comments in the NL80211_IFTYPE_AP block */
3072 if (params->count > 1) {
3073 err = ieee80211_ibss_csa_beacon(sdata, params);
3074 if (err < 0)
3075 return err;
3076 *changed |= err;
3077 }
3078
3079 ieee80211_send_action_csa(sdata, params);
3080
3081 break;
3082 #ifdef CONFIG_MAC80211_MESH
3083 case NL80211_IFTYPE_MESH_POINT: {
3084 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3085
3086 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3087 return -EINVAL;
3088
3089 /* changes into another band are not supported */
3090 if (sdata->vif.bss_conf.chandef.chan->band !=
3091 params->chandef.chan->band)
3092 return -EINVAL;
3093
3094 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3095 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3096 if (!ifmsh->pre_value)
3097 ifmsh->pre_value = 1;
3098 else
3099 ifmsh->pre_value++;
3100 }
3101
3102 /* see comments in the NL80211_IFTYPE_AP block */
3103 if (params->count > 1) {
3104 err = ieee80211_mesh_csa_beacon(sdata, params);
3105 if (err < 0) {
3106 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3107 return err;
3108 }
3109 *changed |= err;
3110 }
3111
3112 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3113 ieee80211_send_action_csa(sdata, params);
3114
3115 break;
3116 }
3117 #endif
3118 default:
3119 return -EOPNOTSUPP;
3120 }
3121
3122 return 0;
3123 }
3124
3125 static int
3126 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3127 struct cfg80211_csa_settings *params)
3128 {
3129 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3130 struct ieee80211_local *local = sdata->local;
3131 struct ieee80211_channel_switch ch_switch;
3132 struct ieee80211_chanctx_conf *conf;
3133 struct ieee80211_chanctx *chanctx;
3134 u32 changed = 0;
3135 int err;
3136
3137 sdata_assert_lock(sdata);
3138 lockdep_assert_held(&local->mtx);
3139
3140 if (!list_empty(&local->roc_list) || local->scanning)
3141 return -EBUSY;
3142
3143 if (sdata->wdev.cac_started)
3144 return -EBUSY;
3145
3146 if (cfg80211_chandef_identical(&params->chandef,
3147 &sdata->vif.bss_conf.chandef))
3148 return -EINVAL;
3149
3150 /* don't allow another channel switch if one is already active. */
3151 if (sdata->vif.csa_active)
3152 return -EBUSY;
3153
3154 mutex_lock(&local->chanctx_mtx);
3155 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3156 lockdep_is_held(&local->chanctx_mtx));
3157 if (!conf) {
3158 err = -EBUSY;
3159 goto out;
3160 }
3161
3162 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3163 if (!chanctx) {
3164 err = -EBUSY;
3165 goto out;
3166 }
3167
3168 ch_switch.timestamp = 0;
3169 ch_switch.device_timestamp = 0;
3170 ch_switch.block_tx = params->block_tx;
3171 ch_switch.chandef = params->chandef;
3172 ch_switch.count = params->count;
3173
3174 err = drv_pre_channel_switch(sdata, &ch_switch);
3175 if (err)
3176 goto out;
3177
3178 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3179 chanctx->mode,
3180 params->radar_required);
3181 if (err)
3182 goto out;
3183
3184 /* if reservation is invalid then this will fail */
3185 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3186 if (err) {
3187 ieee80211_vif_unreserve_chanctx(sdata);
3188 goto out;
3189 }
3190
3191 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3192 if (err) {
3193 ieee80211_vif_unreserve_chanctx(sdata);
3194 goto out;
3195 }
3196
3197 sdata->csa_chandef = params->chandef;
3198 sdata->csa_block_tx = params->block_tx;
3199 sdata->vif.csa_active = true;
3200
3201 if (sdata->csa_block_tx)
3202 ieee80211_stop_vif_queues(local, sdata,
3203 IEEE80211_QUEUE_STOP_REASON_CSA);
3204
3205 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3206 params->count);
3207
3208 if (changed) {
3209 ieee80211_bss_info_change_notify(sdata, changed);
3210 drv_channel_switch_beacon(sdata, &params->chandef);
3211 } else {
3212 /* if the beacon didn't change, we can finalize immediately */
3213 ieee80211_csa_finalize(sdata);
3214 }
3215
3216 out:
3217 mutex_unlock(&local->chanctx_mtx);
3218 return err;
3219 }
3220
3221 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3222 struct cfg80211_csa_settings *params)
3223 {
3224 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3225 struct ieee80211_local *local = sdata->local;
3226 int err;
3227
3228 mutex_lock(&local->mtx);
3229 err = __ieee80211_channel_switch(wiphy, dev, params);
3230 mutex_unlock(&local->mtx);
3231
3232 return err;
3233 }
3234
3235 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3236 struct cfg80211_mgmt_tx_params *params,
3237 u64 *cookie)
3238 {
3239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3240 struct ieee80211_local *local = sdata->local;
3241 struct sk_buff *skb;
3242 struct sta_info *sta;
3243 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3244 bool need_offchan = false;
3245 u32 flags;
3246 int ret;
3247 u8 *data;
3248
3249 if (params->dont_wait_for_ack)
3250 flags = IEEE80211_TX_CTL_NO_ACK;
3251 else
3252 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3253 IEEE80211_TX_CTL_REQ_TX_STATUS;
3254
3255 if (params->no_cck)
3256 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3257
3258 switch (sdata->vif.type) {
3259 case NL80211_IFTYPE_ADHOC:
3260 if (!sdata->vif.bss_conf.ibss_joined)
3261 need_offchan = true;
3262 /* fall through */
3263 #ifdef CONFIG_MAC80211_MESH
3264 case NL80211_IFTYPE_MESH_POINT:
3265 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3266 !sdata->u.mesh.mesh_id_len)
3267 need_offchan = true;
3268 /* fall through */
3269 #endif
3270 case NL80211_IFTYPE_AP:
3271 case NL80211_IFTYPE_AP_VLAN:
3272 case NL80211_IFTYPE_P2P_GO:
3273 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3274 !ieee80211_vif_is_mesh(&sdata->vif) &&
3275 !rcu_access_pointer(sdata->bss->beacon))
3276 need_offchan = true;
3277 if (!ieee80211_is_action(mgmt->frame_control) ||
3278 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3279 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3280 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3281 break;
3282 rcu_read_lock();
3283 sta = sta_info_get(sdata, mgmt->da);
3284 rcu_read_unlock();
3285 if (!sta)
3286 return -ENOLINK;
3287 break;
3288 case NL80211_IFTYPE_STATION:
3289 case NL80211_IFTYPE_P2P_CLIENT:
3290 if (!sdata->u.mgd.associated)
3291 need_offchan = true;
3292 break;
3293 case NL80211_IFTYPE_P2P_DEVICE:
3294 need_offchan = true;
3295 break;
3296 default:
3297 return -EOPNOTSUPP;
3298 }
3299
3300 /* configurations requiring offchan cannot work if no channel has been
3301 * specified
3302 */
3303 if (need_offchan && !params->chan)
3304 return -EINVAL;
3305
3306 mutex_lock(&local->mtx);
3307
3308 /* Check if the operating channel is the requested channel */
3309 if (!need_offchan) {
3310 struct ieee80211_chanctx_conf *chanctx_conf;
3311
3312 rcu_read_lock();
3313 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3314
3315 if (chanctx_conf) {
3316 need_offchan = params->chan &&
3317 (params->chan !=
3318 chanctx_conf->def.chan);
3319 } else if (!params->chan) {
3320 ret = -EINVAL;
3321 rcu_read_unlock();
3322 goto out_unlock;
3323 } else {
3324 need_offchan = true;
3325 }
3326 rcu_read_unlock();
3327 }
3328
3329 if (need_offchan && !params->offchan) {
3330 ret = -EBUSY;
3331 goto out_unlock;
3332 }
3333
3334 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3335 if (!skb) {
3336 ret = -ENOMEM;
3337 goto out_unlock;
3338 }
3339 skb_reserve(skb, local->hw.extra_tx_headroom);
3340
3341 data = skb_put(skb, params->len);
3342 memcpy(data, params->buf, params->len);
3343
3344 /* Update CSA counters */
3345 if (sdata->vif.csa_active &&
3346 (sdata->vif.type == NL80211_IFTYPE_AP ||
3347 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3348 params->n_csa_offsets) {
3349 int i;
3350 struct beacon_data *beacon = NULL;
3351
3352 rcu_read_lock();
3353
3354 if (sdata->vif.type == NL80211_IFTYPE_AP)
3355 beacon = rcu_dereference(sdata->u.ap.beacon);
3356 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3357 beacon = rcu_dereference(sdata->u.ibss.presp);
3358 else if (ieee80211_vif_is_mesh(&sdata->vif))
3359 beacon = rcu_dereference(sdata->u.mesh.beacon);
3360
3361 if (beacon)
3362 for (i = 0; i < params->n_csa_offsets; i++)
3363 data[params->csa_offsets[i]] =
3364 beacon->csa_current_counter;
3365
3366 rcu_read_unlock();
3367 }
3368
3369 IEEE80211_SKB_CB(skb)->flags = flags;
3370
3371 skb->dev = sdata->dev;
3372
3373 if (!need_offchan) {
3374 *cookie = (unsigned long) skb;
3375 ieee80211_tx_skb(sdata, skb);
3376 ret = 0;
3377 goto out_unlock;
3378 }
3379
3380 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3381 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3382 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3383 IEEE80211_SKB_CB(skb)->hw_queue =
3384 local->hw.offchannel_tx_hw_queue;
3385
3386 /* This will handle all kinds of coalescing and immediate TX */
3387 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3388 params->wait, cookie, skb,
3389 IEEE80211_ROC_TYPE_MGMT_TX);
3390 if (ret)
3391 kfree_skb(skb);
3392 out_unlock:
3393 mutex_unlock(&local->mtx);
3394 return ret;
3395 }
3396
3397 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3398 struct wireless_dev *wdev,
3399 u64 cookie)
3400 {
3401 struct ieee80211_local *local = wiphy_priv(wiphy);
3402
3403 return ieee80211_cancel_roc(local, cookie, true);
3404 }
3405
3406 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3407 struct wireless_dev *wdev,
3408 u16 frame_type, bool reg)
3409 {
3410 struct ieee80211_local *local = wiphy_priv(wiphy);
3411
3412 switch (frame_type) {
3413 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3414 if (reg)
3415 local->probe_req_reg++;
3416 else
3417 local->probe_req_reg--;
3418
3419 if (!local->open_count)
3420 break;
3421
3422 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3423 break;
3424 default:
3425 break;
3426 }
3427 }
3428
3429 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3430 {
3431 struct ieee80211_local *local = wiphy_priv(wiphy);
3432
3433 if (local->started)
3434 return -EOPNOTSUPP;
3435
3436 return drv_set_antenna(local, tx_ant, rx_ant);
3437 }
3438
3439 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3440 {
3441 struct ieee80211_local *local = wiphy_priv(wiphy);
3442
3443 return drv_get_antenna(local, tx_ant, rx_ant);
3444 }
3445
3446 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3447 struct net_device *dev,
3448 struct cfg80211_gtk_rekey_data *data)
3449 {
3450 struct ieee80211_local *local = wiphy_priv(wiphy);
3451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3452
3453 if (!local->ops->set_rekey_data)
3454 return -EOPNOTSUPP;
3455
3456 drv_set_rekey_data(local, sdata, data);
3457
3458 return 0;
3459 }
3460
3461 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3462 const u8 *peer, u64 *cookie)
3463 {
3464 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3465 struct ieee80211_local *local = sdata->local;
3466 struct ieee80211_qos_hdr *nullfunc;
3467 struct sk_buff *skb;
3468 int size = sizeof(*nullfunc);
3469 __le16 fc;
3470 bool qos;
3471 struct ieee80211_tx_info *info;
3472 struct sta_info *sta;
3473 struct ieee80211_chanctx_conf *chanctx_conf;
3474 enum ieee80211_band band;
3475
3476 rcu_read_lock();
3477 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3478 if (WARN_ON(!chanctx_conf)) {
3479 rcu_read_unlock();
3480 return -EINVAL;
3481 }
3482 band = chanctx_conf->def.chan->band;
3483 sta = sta_info_get_bss(sdata, peer);
3484 if (sta) {
3485 qos = sta->sta.wme;
3486 } else {
3487 rcu_read_unlock();
3488 return -ENOLINK;
3489 }
3490
3491 if (qos) {
3492 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3493 IEEE80211_STYPE_QOS_NULLFUNC |
3494 IEEE80211_FCTL_FROMDS);
3495 } else {
3496 size -= 2;
3497 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3498 IEEE80211_STYPE_NULLFUNC |
3499 IEEE80211_FCTL_FROMDS);
3500 }
3501
3502 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3503 if (!skb) {
3504 rcu_read_unlock();
3505 return -ENOMEM;
3506 }
3507
3508 skb->dev = dev;
3509
3510 skb_reserve(skb, local->hw.extra_tx_headroom);
3511
3512 nullfunc = (void *) skb_put(skb, size);
3513 nullfunc->frame_control = fc;
3514 nullfunc->duration_id = 0;
3515 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3516 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3517 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3518 nullfunc->seq_ctrl = 0;
3519
3520 info = IEEE80211_SKB_CB(skb);
3521
3522 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3523 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3524 info->band = band;
3525
3526 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3527 skb->priority = 7;
3528 if (qos)
3529 nullfunc->qos_ctrl = cpu_to_le16(7);
3530
3531 local_bh_disable();
3532 ieee80211_xmit(sdata, skb);
3533 local_bh_enable();
3534 rcu_read_unlock();
3535
3536 *cookie = (unsigned long) skb;
3537 return 0;
3538 }
3539
3540 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3541 struct wireless_dev *wdev,
3542 struct cfg80211_chan_def *chandef)
3543 {
3544 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3545 struct ieee80211_local *local = wiphy_priv(wiphy);
3546 struct ieee80211_chanctx_conf *chanctx_conf;
3547 int ret = -ENODATA;
3548
3549 rcu_read_lock();
3550 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3551 if (chanctx_conf) {
3552 *chandef = sdata->vif.bss_conf.chandef;
3553 ret = 0;
3554 } else if (local->open_count > 0 &&
3555 local->open_count == local->monitors &&
3556 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3557 if (local->use_chanctx)
3558 *chandef = local->monitor_chandef;
3559 else
3560 *chandef = local->_oper_chandef;
3561 ret = 0;
3562 }
3563 rcu_read_unlock();
3564
3565 return ret;
3566 }
3567
3568 #ifdef CONFIG_PM
3569 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3570 {
3571 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3572 }
3573 #endif
3574
3575 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3576 struct net_device *dev,
3577 struct cfg80211_qos_map *qos_map)
3578 {
3579 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3580 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3581
3582 if (qos_map) {
3583 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3584 if (!new_qos_map)
3585 return -ENOMEM;
3586 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3587 } else {
3588 /* A NULL qos_map was passed to disable QoS mapping */
3589 new_qos_map = NULL;
3590 }
3591
3592 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3593 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3594 if (old_qos_map)
3595 kfree_rcu(old_qos_map, rcu_head);
3596
3597 return 0;
3598 }
3599
3600 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3601 struct net_device *dev,
3602 struct cfg80211_chan_def *chandef)
3603 {
3604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3605 int ret;
3606 u32 changed = 0;
3607
3608 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3609 if (ret == 0)
3610 ieee80211_bss_info_change_notify(sdata, changed);
3611
3612 return ret;
3613 }
3614
3615 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3616 u8 tsid, const u8 *peer, u8 up,
3617 u16 admitted_time)
3618 {
3619 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3620 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3621 int ac = ieee802_1d_to_ac[up];
3622
3623 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3624 return -EOPNOTSUPP;
3625
3626 if (!(sdata->wmm_acm & BIT(up)))
3627 return -EINVAL;
3628
3629 if (ifmgd->tx_tspec[ac].admitted_time)
3630 return -EBUSY;
3631
3632 if (admitted_time) {
3633 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3634 ifmgd->tx_tspec[ac].tsid = tsid;
3635 ifmgd->tx_tspec[ac].up = up;
3636 }
3637
3638 return 0;
3639 }
3640
3641 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3642 u8 tsid, const u8 *peer)
3643 {
3644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3645 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3646 struct ieee80211_local *local = wiphy_priv(wiphy);
3647 int ac;
3648
3649 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3650 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3651
3652 /* skip unused entries */
3653 if (!tx_tspec->admitted_time)
3654 continue;
3655
3656 if (tx_tspec->tsid != tsid)
3657 continue;
3658
3659 /* due to this new packets will be reassigned to non-ACM ACs */
3660 tx_tspec->up = -1;
3661
3662 /* Make sure that all packets have been sent to avoid to
3663 * restore the QoS params on packets that are still on the
3664 * queues.
3665 */
3666 synchronize_net();
3667 ieee80211_flush_queues(local, sdata);
3668
3669 /* restore the normal QoS parameters
3670 * (unconditionally to avoid races)
3671 */
3672 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3673 tx_tspec->downgraded = false;
3674 ieee80211_sta_handle_tspec_ac_params(sdata);
3675
3676 /* finally clear all the data */
3677 memset(tx_tspec, 0, sizeof(*tx_tspec));
3678
3679 return 0;
3680 }
3681
3682 return -ENOENT;
3683 }
3684
3685 const struct cfg80211_ops mac80211_config_ops = {
3686 .add_virtual_intf = ieee80211_add_iface,
3687 .del_virtual_intf = ieee80211_del_iface,
3688 .change_virtual_intf = ieee80211_change_iface,
3689 .start_p2p_device = ieee80211_start_p2p_device,
3690 .stop_p2p_device = ieee80211_stop_p2p_device,
3691 .add_key = ieee80211_add_key,
3692 .del_key = ieee80211_del_key,
3693 .get_key = ieee80211_get_key,
3694 .set_default_key = ieee80211_config_default_key,
3695 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3696 .start_ap = ieee80211_start_ap,
3697 .change_beacon = ieee80211_change_beacon,
3698 .stop_ap = ieee80211_stop_ap,
3699 .add_station = ieee80211_add_station,
3700 .del_station = ieee80211_del_station,
3701 .change_station = ieee80211_change_station,
3702 .get_station = ieee80211_get_station,
3703 .dump_station = ieee80211_dump_station,
3704 .dump_survey = ieee80211_dump_survey,
3705 #ifdef CONFIG_MAC80211_MESH
3706 .add_mpath = ieee80211_add_mpath,
3707 .del_mpath = ieee80211_del_mpath,
3708 .change_mpath = ieee80211_change_mpath,
3709 .get_mpath = ieee80211_get_mpath,
3710 .dump_mpath = ieee80211_dump_mpath,
3711 .get_mpp = ieee80211_get_mpp,
3712 .dump_mpp = ieee80211_dump_mpp,
3713 .update_mesh_config = ieee80211_update_mesh_config,
3714 .get_mesh_config = ieee80211_get_mesh_config,
3715 .join_mesh = ieee80211_join_mesh,
3716 .leave_mesh = ieee80211_leave_mesh,
3717 #endif
3718 .join_ocb = ieee80211_join_ocb,
3719 .leave_ocb = ieee80211_leave_ocb,
3720 .change_bss = ieee80211_change_bss,
3721 .set_txq_params = ieee80211_set_txq_params,
3722 .set_monitor_channel = ieee80211_set_monitor_channel,
3723 .suspend = ieee80211_suspend,
3724 .resume = ieee80211_resume,
3725 .scan = ieee80211_scan,
3726 .sched_scan_start = ieee80211_sched_scan_start,
3727 .sched_scan_stop = ieee80211_sched_scan_stop,
3728 .auth = ieee80211_auth,
3729 .assoc = ieee80211_assoc,
3730 .deauth = ieee80211_deauth,
3731 .disassoc = ieee80211_disassoc,
3732 .join_ibss = ieee80211_join_ibss,
3733 .leave_ibss = ieee80211_leave_ibss,
3734 .set_mcast_rate = ieee80211_set_mcast_rate,
3735 .set_wiphy_params = ieee80211_set_wiphy_params,
3736 .set_tx_power = ieee80211_set_tx_power,
3737 .get_tx_power = ieee80211_get_tx_power,
3738 .set_wds_peer = ieee80211_set_wds_peer,
3739 .rfkill_poll = ieee80211_rfkill_poll,
3740 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3741 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3742 .set_power_mgmt = ieee80211_set_power_mgmt,
3743 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3744 .remain_on_channel = ieee80211_remain_on_channel,
3745 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3746 .mgmt_tx = ieee80211_mgmt_tx,
3747 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3748 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3749 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3750 .set_antenna = ieee80211_set_antenna,
3751 .get_antenna = ieee80211_get_antenna,
3752 .set_rekey_data = ieee80211_set_rekey_data,
3753 .tdls_oper = ieee80211_tdls_oper,
3754 .tdls_mgmt = ieee80211_tdls_mgmt,
3755 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3756 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3757 .probe_client = ieee80211_probe_client,
3758 .set_noack_map = ieee80211_set_noack_map,
3759 #ifdef CONFIG_PM
3760 .set_wakeup = ieee80211_set_wakeup,
3761 #endif
3762 .get_channel = ieee80211_cfg_get_channel,
3763 .start_radar_detection = ieee80211_start_radar_detection,
3764 .channel_switch = ieee80211_channel_switch,
3765 .set_qos_map = ieee80211_set_qos_map,
3766 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3767 .add_tx_ts = ieee80211_add_tx_ts,
3768 .del_tx_ts = ieee80211_del_tx_ts,
3769 };
Linux with added FPC-III support