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Merge tag 'mvebu-dt-4.2-3' of git://git.infradead.org/linux-mvebu into next/late
[deliverable/linux.git] / net / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 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 unsigned char name_assign_type,
28 enum nl80211_iftype type,
29 u32 *flags,
30 struct vif_params *params)
31 {
32 struct ieee80211_local *local = wiphy_priv(wiphy);
33 struct wireless_dev *wdev;
34 struct ieee80211_sub_if_data *sdata;
35 int err;
36
37 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
38 if (err)
39 return ERR_PTR(err);
40
41 if (type == NL80211_IFTYPE_MONITOR && flags) {
42 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
43 sdata->u.mntr_flags = *flags;
44 }
45
46 return wdev;
47 }
48
49 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
50 {
51 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
52
53 return 0;
54 }
55
56 static int ieee80211_change_iface(struct wiphy *wiphy,
57 struct net_device *dev,
58 enum nl80211_iftype type, u32 *flags,
59 struct vif_params *params)
60 {
61 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
62 int ret;
63
64 ret = ieee80211_if_change_type(sdata, type);
65 if (ret)
66 return ret;
67
68 if (type == NL80211_IFTYPE_AP_VLAN &&
69 params && params->use_4addr == 0)
70 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
71 else if (type == NL80211_IFTYPE_STATION &&
72 params && params->use_4addr >= 0)
73 sdata->u.mgd.use_4addr = params->use_4addr;
74
75 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
76 struct ieee80211_local *local = sdata->local;
77
78 if (ieee80211_sdata_running(sdata)) {
79 u32 mask = MONITOR_FLAG_COOK_FRAMES |
80 MONITOR_FLAG_ACTIVE;
81
82 /*
83 * Prohibit MONITOR_FLAG_COOK_FRAMES and
84 * MONITOR_FLAG_ACTIVE to be changed while the
85 * interface is up.
86 * Else we would need to add a lot of cruft
87 * to update everything:
88 * cooked_mntrs, monitor and all fif_* counters
89 * reconfigure hardware
90 */
91 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
92 return -EBUSY;
93
94 ieee80211_adjust_monitor_flags(sdata, -1);
95 sdata->u.mntr_flags = *flags;
96 ieee80211_adjust_monitor_flags(sdata, 1);
97
98 ieee80211_configure_filter(local);
99 } else {
100 /*
101 * Because the interface is down, ieee80211_do_stop
102 * and ieee80211_do_open take care of "everything"
103 * mentioned in the comment above.
104 */
105 sdata->u.mntr_flags = *flags;
106 }
107 }
108
109 return 0;
110 }
111
112 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
113 struct wireless_dev *wdev)
114 {
115 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
116 int ret;
117
118 mutex_lock(&sdata->local->chanctx_mtx);
119 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
120 mutex_unlock(&sdata->local->chanctx_mtx);
121 if (ret < 0)
122 return ret;
123
124 return ieee80211_do_open(wdev, true);
125 }
126
127 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
128 struct wireless_dev *wdev)
129 {
130 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
131 }
132
133 static int ieee80211_set_noack_map(struct wiphy *wiphy,
134 struct net_device *dev,
135 u16 noack_map)
136 {
137 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
138
139 sdata->noack_map = noack_map;
140 return 0;
141 }
142
143 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
144 u8 key_idx, bool pairwise, const u8 *mac_addr,
145 struct key_params *params)
146 {
147 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
148 struct ieee80211_local *local = sdata->local;
149 struct sta_info *sta = NULL;
150 const struct ieee80211_cipher_scheme *cs = NULL;
151 struct ieee80211_key *key;
152 int err;
153
154 if (!ieee80211_sdata_running(sdata))
155 return -ENETDOWN;
156
157 /* reject WEP and TKIP keys if WEP failed to initialize */
158 switch (params->cipher) {
159 case WLAN_CIPHER_SUITE_WEP40:
160 case WLAN_CIPHER_SUITE_TKIP:
161 case WLAN_CIPHER_SUITE_WEP104:
162 if (IS_ERR(local->wep_tx_tfm))
163 return -EINVAL;
164 break;
165 case WLAN_CIPHER_SUITE_CCMP:
166 case WLAN_CIPHER_SUITE_CCMP_256:
167 case WLAN_CIPHER_SUITE_AES_CMAC:
168 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
169 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
170 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
171 case WLAN_CIPHER_SUITE_GCMP:
172 case WLAN_CIPHER_SUITE_GCMP_256:
173 break;
174 default:
175 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
176 break;
177 }
178
179 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
180 params->key, params->seq_len, params->seq,
181 cs);
182 if (IS_ERR(key))
183 return PTR_ERR(key);
184
185 if (pairwise)
186 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
187
188 mutex_lock(&local->sta_mtx);
189
190 if (mac_addr) {
191 if (ieee80211_vif_is_mesh(&sdata->vif))
192 sta = sta_info_get(sdata, mac_addr);
193 else
194 sta = sta_info_get_bss(sdata, mac_addr);
195 /*
196 * The ASSOC test makes sure the driver is ready to
197 * receive the key. When wpa_supplicant has roamed
198 * using FT, it attempts to set the key before
199 * association has completed, this rejects that attempt
200 * so it will set the key again after association.
201 *
202 * TODO: accept the key if we have a station entry and
203 * add it to the device after the station.
204 */
205 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
206 ieee80211_key_free_unused(key);
207 err = -ENOENT;
208 goto out_unlock;
209 }
210 }
211
212 switch (sdata->vif.type) {
213 case NL80211_IFTYPE_STATION:
214 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
215 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
216 break;
217 case NL80211_IFTYPE_AP:
218 case NL80211_IFTYPE_AP_VLAN:
219 /* Keys without a station are used for TX only */
220 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
221 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
222 break;
223 case NL80211_IFTYPE_ADHOC:
224 /* no MFP (yet) */
225 break;
226 case NL80211_IFTYPE_MESH_POINT:
227 #ifdef CONFIG_MAC80211_MESH
228 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
229 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
230 break;
231 #endif
232 case NL80211_IFTYPE_WDS:
233 case NL80211_IFTYPE_MONITOR:
234 case NL80211_IFTYPE_P2P_DEVICE:
235 case NL80211_IFTYPE_UNSPECIFIED:
236 case NUM_NL80211_IFTYPES:
237 case NL80211_IFTYPE_P2P_CLIENT:
238 case NL80211_IFTYPE_P2P_GO:
239 case NL80211_IFTYPE_OCB:
240 /* shouldn't happen */
241 WARN_ON_ONCE(1);
242 break;
243 }
244
245 if (sta)
246 sta->cipher_scheme = cs;
247
248 err = ieee80211_key_link(key, sdata, sta);
249
250 out_unlock:
251 mutex_unlock(&local->sta_mtx);
252
253 return err;
254 }
255
256 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
257 u8 key_idx, bool pairwise, const u8 *mac_addr)
258 {
259 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
260 struct ieee80211_local *local = sdata->local;
261 struct sta_info *sta;
262 struct ieee80211_key *key = NULL;
263 int ret;
264
265 mutex_lock(&local->sta_mtx);
266 mutex_lock(&local->key_mtx);
267
268 if (mac_addr) {
269 ret = -ENOENT;
270
271 sta = sta_info_get_bss(sdata, mac_addr);
272 if (!sta)
273 goto out_unlock;
274
275 if (pairwise)
276 key = key_mtx_dereference(local, sta->ptk[key_idx]);
277 else
278 key = key_mtx_dereference(local, sta->gtk[key_idx]);
279 } else
280 key = key_mtx_dereference(local, sdata->keys[key_idx]);
281
282 if (!key) {
283 ret = -ENOENT;
284 goto out_unlock;
285 }
286
287 ieee80211_key_free(key, true);
288
289 ret = 0;
290 out_unlock:
291 mutex_unlock(&local->key_mtx);
292 mutex_unlock(&local->sta_mtx);
293
294 return ret;
295 }
296
297 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
298 u8 key_idx, bool pairwise, const u8 *mac_addr,
299 void *cookie,
300 void (*callback)(void *cookie,
301 struct key_params *params))
302 {
303 struct ieee80211_sub_if_data *sdata;
304 struct sta_info *sta = NULL;
305 u8 seq[6] = {0};
306 struct key_params params;
307 struct ieee80211_key *key = NULL;
308 u64 pn64;
309 u32 iv32;
310 u16 iv16;
311 int err = -ENOENT;
312
313 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
314
315 rcu_read_lock();
316
317 if (mac_addr) {
318 sta = sta_info_get_bss(sdata, mac_addr);
319 if (!sta)
320 goto out;
321
322 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
323 key = rcu_dereference(sta->ptk[key_idx]);
324 else if (!pairwise &&
325 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
326 key = rcu_dereference(sta->gtk[key_idx]);
327 } else
328 key = rcu_dereference(sdata->keys[key_idx]);
329
330 if (!key)
331 goto out;
332
333 memset(&params, 0, sizeof(params));
334
335 params.cipher = key->conf.cipher;
336
337 switch (key->conf.cipher) {
338 case WLAN_CIPHER_SUITE_TKIP:
339 iv32 = key->u.tkip.tx.iv32;
340 iv16 = key->u.tkip.tx.iv16;
341
342 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
343 drv_get_tkip_seq(sdata->local,
344 key->conf.hw_key_idx,
345 &iv32, &iv16);
346
347 seq[0] = iv16 & 0xff;
348 seq[1] = (iv16 >> 8) & 0xff;
349 seq[2] = iv32 & 0xff;
350 seq[3] = (iv32 >> 8) & 0xff;
351 seq[4] = (iv32 >> 16) & 0xff;
352 seq[5] = (iv32 >> 24) & 0xff;
353 params.seq = seq;
354 params.seq_len = 6;
355 break;
356 case WLAN_CIPHER_SUITE_CCMP:
357 case WLAN_CIPHER_SUITE_CCMP_256:
358 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
359 seq[0] = pn64;
360 seq[1] = pn64 >> 8;
361 seq[2] = pn64 >> 16;
362 seq[3] = pn64 >> 24;
363 seq[4] = pn64 >> 32;
364 seq[5] = pn64 >> 40;
365 params.seq = seq;
366 params.seq_len = 6;
367 break;
368 case WLAN_CIPHER_SUITE_AES_CMAC:
369 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
370 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
371 seq[0] = pn64;
372 seq[1] = pn64 >> 8;
373 seq[2] = pn64 >> 16;
374 seq[3] = pn64 >> 24;
375 seq[4] = pn64 >> 32;
376 seq[5] = pn64 >> 40;
377 params.seq = seq;
378 params.seq_len = 6;
379 break;
380 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
381 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
382 pn64 = atomic64_read(&key->u.aes_gmac.tx_pn);
383 seq[0] = pn64;
384 seq[1] = pn64 >> 8;
385 seq[2] = pn64 >> 16;
386 seq[3] = pn64 >> 24;
387 seq[4] = pn64 >> 32;
388 seq[5] = pn64 >> 40;
389 params.seq = seq;
390 params.seq_len = 6;
391 break;
392 case WLAN_CIPHER_SUITE_GCMP:
393 case WLAN_CIPHER_SUITE_GCMP_256:
394 pn64 = atomic64_read(&key->u.gcmp.tx_pn);
395 seq[0] = pn64;
396 seq[1] = pn64 >> 8;
397 seq[2] = pn64 >> 16;
398 seq[3] = pn64 >> 24;
399 seq[4] = pn64 >> 32;
400 seq[5] = pn64 >> 40;
401 params.seq = seq;
402 params.seq_len = 6;
403 break;
404 }
405
406 params.key = key->conf.key;
407 params.key_len = key->conf.keylen;
408
409 callback(cookie, &params);
410 err = 0;
411
412 out:
413 rcu_read_unlock();
414 return err;
415 }
416
417 static int ieee80211_config_default_key(struct wiphy *wiphy,
418 struct net_device *dev,
419 u8 key_idx, bool uni,
420 bool multi)
421 {
422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
423
424 ieee80211_set_default_key(sdata, key_idx, uni, multi);
425
426 return 0;
427 }
428
429 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
430 struct net_device *dev,
431 u8 key_idx)
432 {
433 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
434
435 ieee80211_set_default_mgmt_key(sdata, key_idx);
436
437 return 0;
438 }
439
440 void sta_set_rate_info_tx(struct sta_info *sta,
441 const struct ieee80211_tx_rate *rate,
442 struct rate_info *rinfo)
443 {
444 rinfo->flags = 0;
445 if (rate->flags & IEEE80211_TX_RC_MCS) {
446 rinfo->flags |= RATE_INFO_FLAGS_MCS;
447 rinfo->mcs = rate->idx;
448 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
449 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
450 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
451 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
452 } else {
453 struct ieee80211_supported_band *sband;
454 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
455 u16 brate;
456
457 sband = sta->local->hw.wiphy->bands[
458 ieee80211_get_sdata_band(sta->sdata)];
459 brate = sband->bitrates[rate->idx].bitrate;
460 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
461 }
462 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
463 rinfo->bw = RATE_INFO_BW_40;
464 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
465 rinfo->bw = RATE_INFO_BW_80;
466 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
467 rinfo->bw = RATE_INFO_BW_160;
468 else
469 rinfo->bw = RATE_INFO_BW_20;
470 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
471 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
472 }
473
474 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
475 {
476 rinfo->flags = 0;
477
478 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
479 rinfo->flags |= RATE_INFO_FLAGS_MCS;
480 rinfo->mcs = sta->last_rx_rate_idx;
481 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
482 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
483 rinfo->nss = sta->last_rx_rate_vht_nss;
484 rinfo->mcs = sta->last_rx_rate_idx;
485 } else {
486 struct ieee80211_supported_band *sband;
487 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
488 u16 brate;
489
490 sband = sta->local->hw.wiphy->bands[
491 ieee80211_get_sdata_band(sta->sdata)];
492 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
493 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
494 }
495
496 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
497 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
498
499 if (sta->last_rx_rate_flag & RX_FLAG_5MHZ)
500 rinfo->bw = RATE_INFO_BW_5;
501 else if (sta->last_rx_rate_flag & RX_FLAG_10MHZ)
502 rinfo->bw = RATE_INFO_BW_10;
503 else if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
504 rinfo->bw = RATE_INFO_BW_40;
505 else if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
506 rinfo->bw = RATE_INFO_BW_80;
507 else if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
508 rinfo->bw = RATE_INFO_BW_160;
509 else
510 rinfo->bw = RATE_INFO_BW_20;
511 }
512
513 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
514 int idx, u8 *mac, struct station_info *sinfo)
515 {
516 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
517 struct ieee80211_local *local = sdata->local;
518 struct sta_info *sta;
519 int ret = -ENOENT;
520
521 mutex_lock(&local->sta_mtx);
522
523 sta = sta_info_get_by_idx(sdata, idx);
524 if (sta) {
525 ret = 0;
526 memcpy(mac, sta->sta.addr, ETH_ALEN);
527 sta_set_sinfo(sta, sinfo);
528 }
529
530 mutex_unlock(&local->sta_mtx);
531
532 return ret;
533 }
534
535 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
536 int idx, struct survey_info *survey)
537 {
538 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
539
540 return drv_get_survey(local, idx, survey);
541 }
542
543 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
544 const u8 *mac, struct station_info *sinfo)
545 {
546 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
547 struct ieee80211_local *local = sdata->local;
548 struct sta_info *sta;
549 int ret = -ENOENT;
550
551 mutex_lock(&local->sta_mtx);
552
553 sta = sta_info_get_bss(sdata, mac);
554 if (sta) {
555 ret = 0;
556 sta_set_sinfo(sta, sinfo);
557 }
558
559 mutex_unlock(&local->sta_mtx);
560
561 return ret;
562 }
563
564 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
565 struct cfg80211_chan_def *chandef)
566 {
567 struct ieee80211_local *local = wiphy_priv(wiphy);
568 struct ieee80211_sub_if_data *sdata;
569 int ret = 0;
570
571 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
572 return 0;
573
574 mutex_lock(&local->mtx);
575 mutex_lock(&local->iflist_mtx);
576 if (local->use_chanctx) {
577 sdata = rcu_dereference_protected(
578 local->monitor_sdata,
579 lockdep_is_held(&local->iflist_mtx));
580 if (sdata) {
581 ieee80211_vif_release_channel(sdata);
582 ret = ieee80211_vif_use_channel(sdata, chandef,
583 IEEE80211_CHANCTX_EXCLUSIVE);
584 }
585 } else if (local->open_count == local->monitors) {
586 local->_oper_chandef = *chandef;
587 ieee80211_hw_config(local, 0);
588 }
589
590 if (ret == 0)
591 local->monitor_chandef = *chandef;
592 mutex_unlock(&local->iflist_mtx);
593 mutex_unlock(&local->mtx);
594
595 return ret;
596 }
597
598 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
599 const u8 *resp, size_t resp_len,
600 const struct ieee80211_csa_settings *csa)
601 {
602 struct probe_resp *new, *old;
603
604 if (!resp || !resp_len)
605 return 1;
606
607 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
608
609 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
610 if (!new)
611 return -ENOMEM;
612
613 new->len = resp_len;
614 memcpy(new->data, resp, resp_len);
615
616 if (csa)
617 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
618 csa->n_counter_offsets_presp *
619 sizeof(new->csa_counter_offsets[0]));
620
621 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
622 if (old)
623 kfree_rcu(old, rcu_head);
624
625 return 0;
626 }
627
628 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
629 struct cfg80211_beacon_data *params,
630 const struct ieee80211_csa_settings *csa)
631 {
632 struct beacon_data *new, *old;
633 int new_head_len, new_tail_len;
634 int size, err;
635 u32 changed = BSS_CHANGED_BEACON;
636
637 old = sdata_dereference(sdata->u.ap.beacon, sdata);
638
639
640 /* Need to have a beacon head if we don't have one yet */
641 if (!params->head && !old)
642 return -EINVAL;
643
644 /* new or old head? */
645 if (params->head)
646 new_head_len = params->head_len;
647 else
648 new_head_len = old->head_len;
649
650 /* new or old tail? */
651 if (params->tail || !old)
652 /* params->tail_len will be zero for !params->tail */
653 new_tail_len = params->tail_len;
654 else
655 new_tail_len = old->tail_len;
656
657 size = sizeof(*new) + new_head_len + new_tail_len;
658
659 new = kzalloc(size, GFP_KERNEL);
660 if (!new)
661 return -ENOMEM;
662
663 /* start filling the new info now */
664
665 /*
666 * pointers go into the block we allocated,
667 * memory is | beacon_data | head | tail |
668 */
669 new->head = ((u8 *) new) + sizeof(*new);
670 new->tail = new->head + new_head_len;
671 new->head_len = new_head_len;
672 new->tail_len = new_tail_len;
673
674 if (csa) {
675 new->csa_current_counter = csa->count;
676 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
677 csa->n_counter_offsets_beacon *
678 sizeof(new->csa_counter_offsets[0]));
679 }
680
681 /* copy in head */
682 if (params->head)
683 memcpy(new->head, params->head, new_head_len);
684 else
685 memcpy(new->head, old->head, new_head_len);
686
687 /* copy in optional tail */
688 if (params->tail)
689 memcpy(new->tail, params->tail, new_tail_len);
690 else
691 if (old)
692 memcpy(new->tail, old->tail, new_tail_len);
693
694 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
695 params->probe_resp_len, csa);
696 if (err < 0)
697 return err;
698 if (err == 0)
699 changed |= BSS_CHANGED_AP_PROBE_RESP;
700
701 rcu_assign_pointer(sdata->u.ap.beacon, new);
702
703 if (old)
704 kfree_rcu(old, rcu_head);
705
706 return changed;
707 }
708
709 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
710 struct cfg80211_ap_settings *params)
711 {
712 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
713 struct ieee80211_local *local = sdata->local;
714 struct beacon_data *old;
715 struct ieee80211_sub_if_data *vlan;
716 u32 changed = BSS_CHANGED_BEACON_INT |
717 BSS_CHANGED_BEACON_ENABLED |
718 BSS_CHANGED_BEACON |
719 BSS_CHANGED_SSID |
720 BSS_CHANGED_P2P_PS |
721 BSS_CHANGED_TXPOWER;
722 int err;
723
724 old = sdata_dereference(sdata->u.ap.beacon, sdata);
725 if (old)
726 return -EALREADY;
727
728 switch (params->smps_mode) {
729 case NL80211_SMPS_OFF:
730 sdata->smps_mode = IEEE80211_SMPS_OFF;
731 break;
732 case NL80211_SMPS_STATIC:
733 sdata->smps_mode = IEEE80211_SMPS_STATIC;
734 break;
735 case NL80211_SMPS_DYNAMIC:
736 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
737 break;
738 default:
739 return -EINVAL;
740 }
741 sdata->needed_rx_chains = sdata->local->rx_chains;
742
743 mutex_lock(&local->mtx);
744 err = ieee80211_vif_use_channel(sdata, &params->chandef,
745 IEEE80211_CHANCTX_SHARED);
746 if (!err)
747 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
748 mutex_unlock(&local->mtx);
749 if (err)
750 return err;
751
752 /*
753 * Apply control port protocol, this allows us to
754 * not encrypt dynamic WEP control frames.
755 */
756 sdata->control_port_protocol = params->crypto.control_port_ethertype;
757 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
758 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
759 &params->crypto,
760 sdata->vif.type);
761
762 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
763 vlan->control_port_protocol =
764 params->crypto.control_port_ethertype;
765 vlan->control_port_no_encrypt =
766 params->crypto.control_port_no_encrypt;
767 vlan->encrypt_headroom =
768 ieee80211_cs_headroom(sdata->local,
769 &params->crypto,
770 vlan->vif.type);
771 }
772
773 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
774 sdata->vif.bss_conf.dtim_period = params->dtim_period;
775 sdata->vif.bss_conf.enable_beacon = true;
776
777 sdata->vif.bss_conf.ssid_len = params->ssid_len;
778 if (params->ssid_len)
779 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
780 params->ssid_len);
781 sdata->vif.bss_conf.hidden_ssid =
782 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
783
784 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
785 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
786 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
787 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
788 if (params->p2p_opp_ps)
789 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
790 IEEE80211_P2P_OPPPS_ENABLE_BIT;
791
792 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
793 if (err < 0) {
794 ieee80211_vif_release_channel(sdata);
795 return err;
796 }
797 changed |= err;
798
799 err = drv_start_ap(sdata->local, sdata);
800 if (err) {
801 old = sdata_dereference(sdata->u.ap.beacon, sdata);
802
803 if (old)
804 kfree_rcu(old, rcu_head);
805 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
806 ieee80211_vif_release_channel(sdata);
807 return err;
808 }
809
810 ieee80211_recalc_dtim(local, sdata);
811 ieee80211_bss_info_change_notify(sdata, changed);
812
813 netif_carrier_on(dev);
814 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
815 netif_carrier_on(vlan->dev);
816
817 return 0;
818 }
819
820 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
821 struct cfg80211_beacon_data *params)
822 {
823 struct ieee80211_sub_if_data *sdata;
824 struct beacon_data *old;
825 int err;
826
827 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
828 sdata_assert_lock(sdata);
829
830 /* don't allow changing the beacon while CSA is in place - offset
831 * of channel switch counter may change
832 */
833 if (sdata->vif.csa_active)
834 return -EBUSY;
835
836 old = sdata_dereference(sdata->u.ap.beacon, sdata);
837 if (!old)
838 return -ENOENT;
839
840 err = ieee80211_assign_beacon(sdata, params, NULL);
841 if (err < 0)
842 return err;
843 ieee80211_bss_info_change_notify(sdata, err);
844 return 0;
845 }
846
847 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
848 {
849 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
850 struct ieee80211_sub_if_data *vlan;
851 struct ieee80211_local *local = sdata->local;
852 struct beacon_data *old_beacon;
853 struct probe_resp *old_probe_resp;
854 struct cfg80211_chan_def chandef;
855
856 sdata_assert_lock(sdata);
857
858 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
859 if (!old_beacon)
860 return -ENOENT;
861 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
862
863 /* abort any running channel switch */
864 mutex_lock(&local->mtx);
865 sdata->vif.csa_active = false;
866 if (sdata->csa_block_tx) {
867 ieee80211_wake_vif_queues(local, sdata,
868 IEEE80211_QUEUE_STOP_REASON_CSA);
869 sdata->csa_block_tx = false;
870 }
871
872 mutex_unlock(&local->mtx);
873
874 kfree(sdata->u.ap.next_beacon);
875 sdata->u.ap.next_beacon = NULL;
876
877 /* turn off carrier for this interface and dependent VLANs */
878 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
879 netif_carrier_off(vlan->dev);
880 netif_carrier_off(dev);
881
882 /* remove beacon and probe response */
883 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
884 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
885 kfree_rcu(old_beacon, rcu_head);
886 if (old_probe_resp)
887 kfree_rcu(old_probe_resp, rcu_head);
888 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
889
890 __sta_info_flush(sdata, true);
891 ieee80211_free_keys(sdata, true);
892
893 sdata->vif.bss_conf.enable_beacon = false;
894 sdata->vif.bss_conf.ssid_len = 0;
895 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
896 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
897
898 if (sdata->wdev.cac_started) {
899 chandef = sdata->vif.bss_conf.chandef;
900 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
901 cfg80211_cac_event(sdata->dev, &chandef,
902 NL80211_RADAR_CAC_ABORTED,
903 GFP_KERNEL);
904 }
905
906 drv_stop_ap(sdata->local, sdata);
907
908 /* free all potentially still buffered bcast frames */
909 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
910 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
911
912 mutex_lock(&local->mtx);
913 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
914 ieee80211_vif_release_channel(sdata);
915 mutex_unlock(&local->mtx);
916
917 return 0;
918 }
919
920 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
921 struct iapp_layer2_update {
922 u8 da[ETH_ALEN]; /* broadcast */
923 u8 sa[ETH_ALEN]; /* STA addr */
924 __be16 len; /* 6 */
925 u8 dsap; /* 0 */
926 u8 ssap; /* 0 */
927 u8 control;
928 u8 xid_info[3];
929 } __packed;
930
931 static void ieee80211_send_layer2_update(struct sta_info *sta)
932 {
933 struct iapp_layer2_update *msg;
934 struct sk_buff *skb;
935
936 /* Send Level 2 Update Frame to update forwarding tables in layer 2
937 * bridge devices */
938
939 skb = dev_alloc_skb(sizeof(*msg));
940 if (!skb)
941 return;
942 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
943
944 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
945 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
946
947 eth_broadcast_addr(msg->da);
948 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
949 msg->len = htons(6);
950 msg->dsap = 0;
951 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
952 msg->control = 0xaf; /* XID response lsb.1111F101.
953 * F=0 (no poll command; unsolicited frame) */
954 msg->xid_info[0] = 0x81; /* XID format identifier */
955 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
956 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
957
958 skb->dev = sta->sdata->dev;
959 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
960 memset(skb->cb, 0, sizeof(skb->cb));
961 netif_rx_ni(skb);
962 }
963
964 static int sta_apply_auth_flags(struct ieee80211_local *local,
965 struct sta_info *sta,
966 u32 mask, u32 set)
967 {
968 int ret;
969
970 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
971 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
972 !test_sta_flag(sta, WLAN_STA_AUTH)) {
973 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
974 if (ret)
975 return ret;
976 }
977
978 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
979 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
980 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
981 /*
982 * When peer becomes associated, init rate control as
983 * well. Some drivers require rate control initialized
984 * before drv_sta_state() is called.
985 */
986 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
987 rate_control_rate_init(sta);
988
989 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
990 if (ret)
991 return ret;
992 }
993
994 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
995 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
996 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
997 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
998 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
999 else
1000 ret = 0;
1001 if (ret)
1002 return ret;
1003 }
1004
1005 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1006 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1007 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1008 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1009 if (ret)
1010 return ret;
1011 }
1012
1013 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1014 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1015 test_sta_flag(sta, WLAN_STA_AUTH)) {
1016 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1017 if (ret)
1018 return ret;
1019 }
1020
1021 return 0;
1022 }
1023
1024 static int sta_apply_parameters(struct ieee80211_local *local,
1025 struct sta_info *sta,
1026 struct station_parameters *params)
1027 {
1028 int ret = 0;
1029 struct ieee80211_supported_band *sband;
1030 struct ieee80211_sub_if_data *sdata = sta->sdata;
1031 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1032 u32 mask, set;
1033
1034 sband = local->hw.wiphy->bands[band];
1035
1036 mask = params->sta_flags_mask;
1037 set = params->sta_flags_set;
1038
1039 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1040 /*
1041 * In mesh mode, ASSOCIATED isn't part of the nl80211
1042 * API but must follow AUTHENTICATED for driver state.
1043 */
1044 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1045 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1046 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1047 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1048 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1049 /*
1050 * TDLS -- everything follows authorized, but
1051 * only becoming authorized is possible, not
1052 * going back
1053 */
1054 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1055 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1056 BIT(NL80211_STA_FLAG_ASSOCIATED);
1057 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1058 BIT(NL80211_STA_FLAG_ASSOCIATED);
1059 }
1060 }
1061
1062 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1063 local->hw.queues >= IEEE80211_NUM_ACS)
1064 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1065
1066 /* auth flags will be set later for TDLS stations */
1067 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1068 ret = sta_apply_auth_flags(local, sta, mask, set);
1069 if (ret)
1070 return ret;
1071 }
1072
1073 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1074 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1075 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1076 else
1077 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1078 }
1079
1080 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1081 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1082 if (set & BIT(NL80211_STA_FLAG_MFP))
1083 set_sta_flag(sta, WLAN_STA_MFP);
1084 else
1085 clear_sta_flag(sta, WLAN_STA_MFP);
1086 }
1087
1088 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1089 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1090 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1091 else
1092 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1093 }
1094
1095 /* mark TDLS channel switch support, if the AP allows it */
1096 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1097 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1098 params->ext_capab_len >= 4 &&
1099 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1100 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1101
1102 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1103 sta->sta.uapsd_queues = params->uapsd_queues;
1104 sta->sta.max_sp = params->max_sp;
1105 }
1106
1107 /*
1108 * cfg80211 validates this (1-2007) and allows setting the AID
1109 * only when creating a new station entry
1110 */
1111 if (params->aid)
1112 sta->sta.aid = params->aid;
1113
1114 /*
1115 * Some of the following updates would be racy if called on an
1116 * existing station, via ieee80211_change_station(). However,
1117 * all such changes are rejected by cfg80211 except for updates
1118 * changing the supported rates on an existing but not yet used
1119 * TDLS peer.
1120 */
1121
1122 if (params->listen_interval >= 0)
1123 sta->listen_interval = params->listen_interval;
1124
1125 if (params->supported_rates) {
1126 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1127 sband, params->supported_rates,
1128 params->supported_rates_len,
1129 &sta->sta.supp_rates[band]);
1130 }
1131
1132 if (params->ht_capa)
1133 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1134 params->ht_capa, sta);
1135
1136 if (params->vht_capa)
1137 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1138 params->vht_capa, sta);
1139
1140 if (params->opmode_notif_used) {
1141 /* returned value is only needed for rc update, but the
1142 * rc isn't initialized here yet, so ignore it
1143 */
1144 __ieee80211_vht_handle_opmode(sdata, sta,
1145 params->opmode_notif,
1146 band, false);
1147 }
1148
1149 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1150 #ifdef CONFIG_MAC80211_MESH
1151 u32 changed = 0;
1152
1153 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1154 switch (params->plink_state) {
1155 case NL80211_PLINK_ESTAB:
1156 if (sta->plink_state != NL80211_PLINK_ESTAB)
1157 changed = mesh_plink_inc_estab_count(
1158 sdata);
1159 sta->plink_state = params->plink_state;
1160
1161 ieee80211_mps_sta_status_update(sta);
1162 changed |= ieee80211_mps_set_sta_local_pm(sta,
1163 sdata->u.mesh.mshcfg.power_mode);
1164 break;
1165 case NL80211_PLINK_LISTEN:
1166 case NL80211_PLINK_BLOCKED:
1167 case NL80211_PLINK_OPN_SNT:
1168 case NL80211_PLINK_OPN_RCVD:
1169 case NL80211_PLINK_CNF_RCVD:
1170 case NL80211_PLINK_HOLDING:
1171 if (sta->plink_state == NL80211_PLINK_ESTAB)
1172 changed = mesh_plink_dec_estab_count(
1173 sdata);
1174 sta->plink_state = params->plink_state;
1175
1176 ieee80211_mps_sta_status_update(sta);
1177 changed |= ieee80211_mps_set_sta_local_pm(sta,
1178 NL80211_MESH_POWER_UNKNOWN);
1179 break;
1180 default:
1181 /* nothing */
1182 break;
1183 }
1184 }
1185
1186 switch (params->plink_action) {
1187 case NL80211_PLINK_ACTION_NO_ACTION:
1188 /* nothing */
1189 break;
1190 case NL80211_PLINK_ACTION_OPEN:
1191 changed |= mesh_plink_open(sta);
1192 break;
1193 case NL80211_PLINK_ACTION_BLOCK:
1194 changed |= mesh_plink_block(sta);
1195 break;
1196 }
1197
1198 if (params->local_pm)
1199 changed |=
1200 ieee80211_mps_set_sta_local_pm(sta,
1201 params->local_pm);
1202 ieee80211_mbss_info_change_notify(sdata, changed);
1203 #endif
1204 }
1205
1206 /* set the STA state after all sta info from usermode has been set */
1207 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1208 ret = sta_apply_auth_flags(local, sta, mask, set);
1209 if (ret)
1210 return ret;
1211 }
1212
1213 return 0;
1214 }
1215
1216 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1217 const u8 *mac,
1218 struct station_parameters *params)
1219 {
1220 struct ieee80211_local *local = wiphy_priv(wiphy);
1221 struct sta_info *sta;
1222 struct ieee80211_sub_if_data *sdata;
1223 int err;
1224 int layer2_update;
1225
1226 if (params->vlan) {
1227 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1228
1229 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1230 sdata->vif.type != NL80211_IFTYPE_AP)
1231 return -EINVAL;
1232 } else
1233 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1234
1235 if (ether_addr_equal(mac, sdata->vif.addr))
1236 return -EINVAL;
1237
1238 if (is_multicast_ether_addr(mac))
1239 return -EINVAL;
1240
1241 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1242 if (!sta)
1243 return -ENOMEM;
1244
1245 /*
1246 * defaults -- if userspace wants something else we'll
1247 * change it accordingly in sta_apply_parameters()
1248 */
1249 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1250 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1251 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1252 } else {
1253 sta->sta.tdls = true;
1254 }
1255
1256 err = sta_apply_parameters(local, sta, params);
1257 if (err) {
1258 sta_info_free(local, sta);
1259 return err;
1260 }
1261
1262 /*
1263 * for TDLS, rate control should be initialized only when
1264 * rates are known and station is marked authorized
1265 */
1266 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1267 rate_control_rate_init(sta);
1268
1269 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1270 sdata->vif.type == NL80211_IFTYPE_AP;
1271
1272 err = sta_info_insert_rcu(sta);
1273 if (err) {
1274 rcu_read_unlock();
1275 return err;
1276 }
1277
1278 if (layer2_update)
1279 ieee80211_send_layer2_update(sta);
1280
1281 rcu_read_unlock();
1282
1283 return 0;
1284 }
1285
1286 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1287 struct station_del_parameters *params)
1288 {
1289 struct ieee80211_sub_if_data *sdata;
1290
1291 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1292
1293 if (params->mac)
1294 return sta_info_destroy_addr_bss(sdata, params->mac);
1295
1296 sta_info_flush(sdata);
1297 return 0;
1298 }
1299
1300 static int ieee80211_change_station(struct wiphy *wiphy,
1301 struct net_device *dev, const u8 *mac,
1302 struct station_parameters *params)
1303 {
1304 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1305 struct ieee80211_local *local = wiphy_priv(wiphy);
1306 struct sta_info *sta;
1307 struct ieee80211_sub_if_data *vlansdata;
1308 enum cfg80211_station_type statype;
1309 int err;
1310
1311 mutex_lock(&local->sta_mtx);
1312
1313 sta = sta_info_get_bss(sdata, mac);
1314 if (!sta) {
1315 err = -ENOENT;
1316 goto out_err;
1317 }
1318
1319 switch (sdata->vif.type) {
1320 case NL80211_IFTYPE_MESH_POINT:
1321 if (sdata->u.mesh.user_mpm)
1322 statype = CFG80211_STA_MESH_PEER_USER;
1323 else
1324 statype = CFG80211_STA_MESH_PEER_KERNEL;
1325 break;
1326 case NL80211_IFTYPE_ADHOC:
1327 statype = CFG80211_STA_IBSS;
1328 break;
1329 case NL80211_IFTYPE_STATION:
1330 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1331 statype = CFG80211_STA_AP_STA;
1332 break;
1333 }
1334 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1335 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1336 else
1337 statype = CFG80211_STA_TDLS_PEER_SETUP;
1338 break;
1339 case NL80211_IFTYPE_AP:
1340 case NL80211_IFTYPE_AP_VLAN:
1341 statype = CFG80211_STA_AP_CLIENT;
1342 break;
1343 default:
1344 err = -EOPNOTSUPP;
1345 goto out_err;
1346 }
1347
1348 err = cfg80211_check_station_change(wiphy, params, statype);
1349 if (err)
1350 goto out_err;
1351
1352 if (params->vlan && params->vlan != sta->sdata->dev) {
1353 bool prev_4addr = false;
1354 bool new_4addr = false;
1355
1356 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1357
1358 if (params->vlan->ieee80211_ptr->use_4addr) {
1359 if (vlansdata->u.vlan.sta) {
1360 err = -EBUSY;
1361 goto out_err;
1362 }
1363
1364 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1365 new_4addr = true;
1366 }
1367
1368 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1369 sta->sdata->u.vlan.sta) {
1370 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1371 prev_4addr = true;
1372 }
1373
1374 sta->sdata = vlansdata;
1375
1376 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1377 prev_4addr != new_4addr) {
1378 if (new_4addr)
1379 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1380 else
1381 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1382 }
1383
1384 ieee80211_send_layer2_update(sta);
1385 }
1386
1387 err = sta_apply_parameters(local, sta, params);
1388 if (err)
1389 goto out_err;
1390
1391 mutex_unlock(&local->sta_mtx);
1392
1393 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1394 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1395 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1396 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1397 sta_info_tx_streams(sta) != 1) {
1398 ht_dbg(sta->sdata,
1399 "%pM just authorized and MIMO capable - update SMPS\n",
1400 sta->sta.addr);
1401 ieee80211_send_smps_action(sta->sdata,
1402 sta->sdata->bss->req_smps,
1403 sta->sta.addr,
1404 sta->sdata->vif.bss_conf.bssid);
1405 }
1406
1407 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1408 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1409 ieee80211_recalc_ps(local, -1);
1410 ieee80211_recalc_ps_vif(sdata);
1411 }
1412
1413 return 0;
1414 out_err:
1415 mutex_unlock(&local->sta_mtx);
1416 return err;
1417 }
1418
1419 #ifdef CONFIG_MAC80211_MESH
1420 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1421 const u8 *dst, const u8 *next_hop)
1422 {
1423 struct ieee80211_sub_if_data *sdata;
1424 struct mesh_path *mpath;
1425 struct sta_info *sta;
1426
1427 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1428
1429 rcu_read_lock();
1430 sta = sta_info_get(sdata, next_hop);
1431 if (!sta) {
1432 rcu_read_unlock();
1433 return -ENOENT;
1434 }
1435
1436 mpath = mesh_path_add(sdata, dst);
1437 if (IS_ERR(mpath)) {
1438 rcu_read_unlock();
1439 return PTR_ERR(mpath);
1440 }
1441
1442 mesh_path_fix_nexthop(mpath, sta);
1443
1444 rcu_read_unlock();
1445 return 0;
1446 }
1447
1448 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1449 const u8 *dst)
1450 {
1451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1452
1453 if (dst)
1454 return mesh_path_del(sdata, dst);
1455
1456 mesh_path_flush_by_iface(sdata);
1457 return 0;
1458 }
1459
1460 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1461 const u8 *dst, const u8 *next_hop)
1462 {
1463 struct ieee80211_sub_if_data *sdata;
1464 struct mesh_path *mpath;
1465 struct sta_info *sta;
1466
1467 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1468
1469 rcu_read_lock();
1470
1471 sta = sta_info_get(sdata, next_hop);
1472 if (!sta) {
1473 rcu_read_unlock();
1474 return -ENOENT;
1475 }
1476
1477 mpath = mesh_path_lookup(sdata, dst);
1478 if (!mpath) {
1479 rcu_read_unlock();
1480 return -ENOENT;
1481 }
1482
1483 mesh_path_fix_nexthop(mpath, sta);
1484
1485 rcu_read_unlock();
1486 return 0;
1487 }
1488
1489 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1490 struct mpath_info *pinfo)
1491 {
1492 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1493
1494 if (next_hop_sta)
1495 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1496 else
1497 eth_zero_addr(next_hop);
1498
1499 memset(pinfo, 0, sizeof(*pinfo));
1500
1501 pinfo->generation = mesh_paths_generation;
1502
1503 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1504 MPATH_INFO_SN |
1505 MPATH_INFO_METRIC |
1506 MPATH_INFO_EXPTIME |
1507 MPATH_INFO_DISCOVERY_TIMEOUT |
1508 MPATH_INFO_DISCOVERY_RETRIES |
1509 MPATH_INFO_FLAGS;
1510
1511 pinfo->frame_qlen = mpath->frame_queue.qlen;
1512 pinfo->sn = mpath->sn;
1513 pinfo->metric = mpath->metric;
1514 if (time_before(jiffies, mpath->exp_time))
1515 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1516 pinfo->discovery_timeout =
1517 jiffies_to_msecs(mpath->discovery_timeout);
1518 pinfo->discovery_retries = mpath->discovery_retries;
1519 if (mpath->flags & MESH_PATH_ACTIVE)
1520 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1521 if (mpath->flags & MESH_PATH_RESOLVING)
1522 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1523 if (mpath->flags & MESH_PATH_SN_VALID)
1524 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1525 if (mpath->flags & MESH_PATH_FIXED)
1526 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1527 if (mpath->flags & MESH_PATH_RESOLVED)
1528 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1529 }
1530
1531 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1532 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1533
1534 {
1535 struct ieee80211_sub_if_data *sdata;
1536 struct mesh_path *mpath;
1537
1538 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1539
1540 rcu_read_lock();
1541 mpath = mesh_path_lookup(sdata, dst);
1542 if (!mpath) {
1543 rcu_read_unlock();
1544 return -ENOENT;
1545 }
1546 memcpy(dst, mpath->dst, ETH_ALEN);
1547 mpath_set_pinfo(mpath, next_hop, pinfo);
1548 rcu_read_unlock();
1549 return 0;
1550 }
1551
1552 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1553 int idx, u8 *dst, u8 *next_hop,
1554 struct mpath_info *pinfo)
1555 {
1556 struct ieee80211_sub_if_data *sdata;
1557 struct mesh_path *mpath;
1558
1559 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1560
1561 rcu_read_lock();
1562 mpath = mesh_path_lookup_by_idx(sdata, idx);
1563 if (!mpath) {
1564 rcu_read_unlock();
1565 return -ENOENT;
1566 }
1567 memcpy(dst, mpath->dst, ETH_ALEN);
1568 mpath_set_pinfo(mpath, next_hop, pinfo);
1569 rcu_read_unlock();
1570 return 0;
1571 }
1572
1573 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1574 struct mpath_info *pinfo)
1575 {
1576 memset(pinfo, 0, sizeof(*pinfo));
1577 memcpy(mpp, mpath->mpp, ETH_ALEN);
1578
1579 pinfo->generation = mpp_paths_generation;
1580 }
1581
1582 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1583 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1584
1585 {
1586 struct ieee80211_sub_if_data *sdata;
1587 struct mesh_path *mpath;
1588
1589 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1590
1591 rcu_read_lock();
1592 mpath = mpp_path_lookup(sdata, dst);
1593 if (!mpath) {
1594 rcu_read_unlock();
1595 return -ENOENT;
1596 }
1597 memcpy(dst, mpath->dst, ETH_ALEN);
1598 mpp_set_pinfo(mpath, mpp, pinfo);
1599 rcu_read_unlock();
1600 return 0;
1601 }
1602
1603 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1604 int idx, u8 *dst, u8 *mpp,
1605 struct mpath_info *pinfo)
1606 {
1607 struct ieee80211_sub_if_data *sdata;
1608 struct mesh_path *mpath;
1609
1610 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1611
1612 rcu_read_lock();
1613 mpath = mpp_path_lookup_by_idx(sdata, idx);
1614 if (!mpath) {
1615 rcu_read_unlock();
1616 return -ENOENT;
1617 }
1618 memcpy(dst, mpath->dst, ETH_ALEN);
1619 mpp_set_pinfo(mpath, mpp, pinfo);
1620 rcu_read_unlock();
1621 return 0;
1622 }
1623
1624 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1625 struct net_device *dev,
1626 struct mesh_config *conf)
1627 {
1628 struct ieee80211_sub_if_data *sdata;
1629 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1630
1631 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1632 return 0;
1633 }
1634
1635 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1636 {
1637 return (mask >> (parm-1)) & 0x1;
1638 }
1639
1640 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1641 const struct mesh_setup *setup)
1642 {
1643 u8 *new_ie;
1644 const u8 *old_ie;
1645 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1646 struct ieee80211_sub_if_data, u.mesh);
1647
1648 /* allocate information elements */
1649 new_ie = NULL;
1650 old_ie = ifmsh->ie;
1651
1652 if (setup->ie_len) {
1653 new_ie = kmemdup(setup->ie, setup->ie_len,
1654 GFP_KERNEL);
1655 if (!new_ie)
1656 return -ENOMEM;
1657 }
1658 ifmsh->ie_len = setup->ie_len;
1659 ifmsh->ie = new_ie;
1660 kfree(old_ie);
1661
1662 /* now copy the rest of the setup parameters */
1663 ifmsh->mesh_id_len = setup->mesh_id_len;
1664 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1665 ifmsh->mesh_sp_id = setup->sync_method;
1666 ifmsh->mesh_pp_id = setup->path_sel_proto;
1667 ifmsh->mesh_pm_id = setup->path_metric;
1668 ifmsh->user_mpm = setup->user_mpm;
1669 ifmsh->mesh_auth_id = setup->auth_id;
1670 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1671 if (setup->is_authenticated)
1672 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1673 if (setup->is_secure)
1674 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1675
1676 /* mcast rate setting in Mesh Node */
1677 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1678 sizeof(setup->mcast_rate));
1679 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1680
1681 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1682 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1683
1684 return 0;
1685 }
1686
1687 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1688 struct net_device *dev, u32 mask,
1689 const struct mesh_config *nconf)
1690 {
1691 struct mesh_config *conf;
1692 struct ieee80211_sub_if_data *sdata;
1693 struct ieee80211_if_mesh *ifmsh;
1694
1695 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1696 ifmsh = &sdata->u.mesh;
1697
1698 /* Set the config options which we are interested in setting */
1699 conf = &(sdata->u.mesh.mshcfg);
1700 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1701 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1702 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1703 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1704 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1705 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1706 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1707 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1708 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1709 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1710 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1711 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1712 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1713 conf->element_ttl = nconf->element_ttl;
1714 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1715 if (ifmsh->user_mpm)
1716 return -EBUSY;
1717 conf->auto_open_plinks = nconf->auto_open_plinks;
1718 }
1719 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1720 conf->dot11MeshNbrOffsetMaxNeighbor =
1721 nconf->dot11MeshNbrOffsetMaxNeighbor;
1722 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1723 conf->dot11MeshHWMPmaxPREQretries =
1724 nconf->dot11MeshHWMPmaxPREQretries;
1725 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1726 conf->path_refresh_time = nconf->path_refresh_time;
1727 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1728 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1729 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1730 conf->dot11MeshHWMPactivePathTimeout =
1731 nconf->dot11MeshHWMPactivePathTimeout;
1732 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1733 conf->dot11MeshHWMPpreqMinInterval =
1734 nconf->dot11MeshHWMPpreqMinInterval;
1735 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1736 conf->dot11MeshHWMPperrMinInterval =
1737 nconf->dot11MeshHWMPperrMinInterval;
1738 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1739 mask))
1740 conf->dot11MeshHWMPnetDiameterTraversalTime =
1741 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1742 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1743 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1744 ieee80211_mesh_root_setup(ifmsh);
1745 }
1746 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1747 /* our current gate announcement implementation rides on root
1748 * announcements, so require this ifmsh to also be a root node
1749 * */
1750 if (nconf->dot11MeshGateAnnouncementProtocol &&
1751 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1752 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1753 ieee80211_mesh_root_setup(ifmsh);
1754 }
1755 conf->dot11MeshGateAnnouncementProtocol =
1756 nconf->dot11MeshGateAnnouncementProtocol;
1757 }
1758 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1759 conf->dot11MeshHWMPRannInterval =
1760 nconf->dot11MeshHWMPRannInterval;
1761 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1762 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1763 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1764 /* our RSSI threshold implementation is supported only for
1765 * devices that report signal in dBm.
1766 */
1767 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1768 return -ENOTSUPP;
1769 conf->rssi_threshold = nconf->rssi_threshold;
1770 }
1771 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1772 conf->ht_opmode = nconf->ht_opmode;
1773 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1774 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1775 }
1776 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1777 conf->dot11MeshHWMPactivePathToRootTimeout =
1778 nconf->dot11MeshHWMPactivePathToRootTimeout;
1779 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1780 conf->dot11MeshHWMProotInterval =
1781 nconf->dot11MeshHWMProotInterval;
1782 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1783 conf->dot11MeshHWMPconfirmationInterval =
1784 nconf->dot11MeshHWMPconfirmationInterval;
1785 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1786 conf->power_mode = nconf->power_mode;
1787 ieee80211_mps_local_status_update(sdata);
1788 }
1789 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1790 conf->dot11MeshAwakeWindowDuration =
1791 nconf->dot11MeshAwakeWindowDuration;
1792 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1793 conf->plink_timeout = nconf->plink_timeout;
1794 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1795 return 0;
1796 }
1797
1798 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1799 const struct mesh_config *conf,
1800 const struct mesh_setup *setup)
1801 {
1802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1803 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1804 int err;
1805
1806 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1807 err = copy_mesh_setup(ifmsh, setup);
1808 if (err)
1809 return err;
1810
1811 /* can mesh use other SMPS modes? */
1812 sdata->smps_mode = IEEE80211_SMPS_OFF;
1813 sdata->needed_rx_chains = sdata->local->rx_chains;
1814
1815 mutex_lock(&sdata->local->mtx);
1816 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1817 IEEE80211_CHANCTX_SHARED);
1818 mutex_unlock(&sdata->local->mtx);
1819 if (err)
1820 return err;
1821
1822 return ieee80211_start_mesh(sdata);
1823 }
1824
1825 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1826 {
1827 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1828
1829 ieee80211_stop_mesh(sdata);
1830 mutex_lock(&sdata->local->mtx);
1831 ieee80211_vif_release_channel(sdata);
1832 mutex_unlock(&sdata->local->mtx);
1833
1834 return 0;
1835 }
1836 #endif
1837
1838 static int ieee80211_change_bss(struct wiphy *wiphy,
1839 struct net_device *dev,
1840 struct bss_parameters *params)
1841 {
1842 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1843 enum ieee80211_band band;
1844 u32 changed = 0;
1845
1846 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1847 return -ENOENT;
1848
1849 band = ieee80211_get_sdata_band(sdata);
1850
1851 if (params->use_cts_prot >= 0) {
1852 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1853 changed |= BSS_CHANGED_ERP_CTS_PROT;
1854 }
1855 if (params->use_short_preamble >= 0) {
1856 sdata->vif.bss_conf.use_short_preamble =
1857 params->use_short_preamble;
1858 changed |= BSS_CHANGED_ERP_PREAMBLE;
1859 }
1860
1861 if (!sdata->vif.bss_conf.use_short_slot &&
1862 band == IEEE80211_BAND_5GHZ) {
1863 sdata->vif.bss_conf.use_short_slot = true;
1864 changed |= BSS_CHANGED_ERP_SLOT;
1865 }
1866
1867 if (params->use_short_slot_time >= 0) {
1868 sdata->vif.bss_conf.use_short_slot =
1869 params->use_short_slot_time;
1870 changed |= BSS_CHANGED_ERP_SLOT;
1871 }
1872
1873 if (params->basic_rates) {
1874 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1875 wiphy->bands[band],
1876 params->basic_rates,
1877 params->basic_rates_len,
1878 &sdata->vif.bss_conf.basic_rates);
1879 changed |= BSS_CHANGED_BASIC_RATES;
1880 }
1881
1882 if (params->ap_isolate >= 0) {
1883 if (params->ap_isolate)
1884 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1885 else
1886 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1887 }
1888
1889 if (params->ht_opmode >= 0) {
1890 sdata->vif.bss_conf.ht_operation_mode =
1891 (u16) params->ht_opmode;
1892 changed |= BSS_CHANGED_HT;
1893 }
1894
1895 if (params->p2p_ctwindow >= 0) {
1896 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1897 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1898 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1899 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1900 changed |= BSS_CHANGED_P2P_PS;
1901 }
1902
1903 if (params->p2p_opp_ps > 0) {
1904 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1905 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1906 changed |= BSS_CHANGED_P2P_PS;
1907 } else if (params->p2p_opp_ps == 0) {
1908 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1909 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
1910 changed |= BSS_CHANGED_P2P_PS;
1911 }
1912
1913 ieee80211_bss_info_change_notify(sdata, changed);
1914
1915 return 0;
1916 }
1917
1918 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1919 struct net_device *dev,
1920 struct ieee80211_txq_params *params)
1921 {
1922 struct ieee80211_local *local = wiphy_priv(wiphy);
1923 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1924 struct ieee80211_tx_queue_params p;
1925
1926 if (!local->ops->conf_tx)
1927 return -EOPNOTSUPP;
1928
1929 if (local->hw.queues < IEEE80211_NUM_ACS)
1930 return -EOPNOTSUPP;
1931
1932 memset(&p, 0, sizeof(p));
1933 p.aifs = params->aifs;
1934 p.cw_max = params->cwmax;
1935 p.cw_min = params->cwmin;
1936 p.txop = params->txop;
1937
1938 /*
1939 * Setting tx queue params disables u-apsd because it's only
1940 * called in master mode.
1941 */
1942 p.uapsd = false;
1943
1944 sdata->tx_conf[params->ac] = p;
1945 if (drv_conf_tx(local, sdata, params->ac, &p)) {
1946 wiphy_debug(local->hw.wiphy,
1947 "failed to set TX queue parameters for AC %d\n",
1948 params->ac);
1949 return -EINVAL;
1950 }
1951
1952 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1953
1954 return 0;
1955 }
1956
1957 #ifdef CONFIG_PM
1958 static int ieee80211_suspend(struct wiphy *wiphy,
1959 struct cfg80211_wowlan *wowlan)
1960 {
1961 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1962 }
1963
1964 static int ieee80211_resume(struct wiphy *wiphy)
1965 {
1966 return __ieee80211_resume(wiphy_priv(wiphy));
1967 }
1968 #else
1969 #define ieee80211_suspend NULL
1970 #define ieee80211_resume NULL
1971 #endif
1972
1973 static int ieee80211_scan(struct wiphy *wiphy,
1974 struct cfg80211_scan_request *req)
1975 {
1976 struct ieee80211_sub_if_data *sdata;
1977
1978 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1979
1980 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1981 case NL80211_IFTYPE_STATION:
1982 case NL80211_IFTYPE_ADHOC:
1983 case NL80211_IFTYPE_MESH_POINT:
1984 case NL80211_IFTYPE_P2P_CLIENT:
1985 case NL80211_IFTYPE_P2P_DEVICE:
1986 break;
1987 case NL80211_IFTYPE_P2P_GO:
1988 if (sdata->local->ops->hw_scan)
1989 break;
1990 /*
1991 * FIXME: implement NoA while scanning in software,
1992 * for now fall through to allow scanning only when
1993 * beaconing hasn't been configured yet
1994 */
1995 case NL80211_IFTYPE_AP:
1996 /*
1997 * If the scan has been forced (and the driver supports
1998 * forcing), don't care about being beaconing already.
1999 * This will create problems to the attached stations (e.g. all
2000 * the frames sent while scanning on other channel will be
2001 * lost)
2002 */
2003 if (sdata->u.ap.beacon &&
2004 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2005 !(req->flags & NL80211_SCAN_FLAG_AP)))
2006 return -EOPNOTSUPP;
2007 break;
2008 default:
2009 return -EOPNOTSUPP;
2010 }
2011
2012 return ieee80211_request_scan(sdata, req);
2013 }
2014
2015 static int
2016 ieee80211_sched_scan_start(struct wiphy *wiphy,
2017 struct net_device *dev,
2018 struct cfg80211_sched_scan_request *req)
2019 {
2020 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2021
2022 if (!sdata->local->ops->sched_scan_start)
2023 return -EOPNOTSUPP;
2024
2025 return ieee80211_request_sched_scan_start(sdata, req);
2026 }
2027
2028 static int
2029 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2030 {
2031 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2032
2033 if (!sdata->local->ops->sched_scan_stop)
2034 return -EOPNOTSUPP;
2035
2036 return ieee80211_request_sched_scan_stop(sdata);
2037 }
2038
2039 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2040 struct cfg80211_auth_request *req)
2041 {
2042 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2043 }
2044
2045 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2046 struct cfg80211_assoc_request *req)
2047 {
2048 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2049 }
2050
2051 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2052 struct cfg80211_deauth_request *req)
2053 {
2054 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2055 }
2056
2057 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2058 struct cfg80211_disassoc_request *req)
2059 {
2060 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2061 }
2062
2063 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2064 struct cfg80211_ibss_params *params)
2065 {
2066 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2067 }
2068
2069 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2070 {
2071 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2072 }
2073
2074 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2075 struct ocb_setup *setup)
2076 {
2077 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2078 }
2079
2080 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2081 {
2082 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2083 }
2084
2085 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2086 int rate[IEEE80211_NUM_BANDS])
2087 {
2088 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2089
2090 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2091 sizeof(int) * IEEE80211_NUM_BANDS);
2092
2093 return 0;
2094 }
2095
2096 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2097 {
2098 struct ieee80211_local *local = wiphy_priv(wiphy);
2099 int err;
2100
2101 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2102 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2103
2104 if (err)
2105 return err;
2106 }
2107
2108 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2109 (changed & WIPHY_PARAM_DYN_ACK)) {
2110 s16 coverage_class;
2111
2112 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2113 wiphy->coverage_class : -1;
2114 err = drv_set_coverage_class(local, coverage_class);
2115
2116 if (err)
2117 return err;
2118 }
2119
2120 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2121 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2122
2123 if (err)
2124 return err;
2125 }
2126
2127 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2128 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2129 return -EINVAL;
2130 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2131 }
2132 if (changed & WIPHY_PARAM_RETRY_LONG) {
2133 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2134 return -EINVAL;
2135 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2136 }
2137 if (changed &
2138 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2139 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2140
2141 return 0;
2142 }
2143
2144 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2145 struct wireless_dev *wdev,
2146 enum nl80211_tx_power_setting type, int mbm)
2147 {
2148 struct ieee80211_local *local = wiphy_priv(wiphy);
2149 struct ieee80211_sub_if_data *sdata;
2150 enum nl80211_tx_power_setting txp_type = type;
2151 bool update_txp_type = false;
2152
2153 if (wdev) {
2154 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2155
2156 switch (type) {
2157 case NL80211_TX_POWER_AUTOMATIC:
2158 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2159 txp_type = NL80211_TX_POWER_LIMITED;
2160 break;
2161 case NL80211_TX_POWER_LIMITED:
2162 case NL80211_TX_POWER_FIXED:
2163 if (mbm < 0 || (mbm % 100))
2164 return -EOPNOTSUPP;
2165 sdata->user_power_level = MBM_TO_DBM(mbm);
2166 break;
2167 }
2168
2169 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2170 update_txp_type = true;
2171 sdata->vif.bss_conf.txpower_type = txp_type;
2172 }
2173
2174 ieee80211_recalc_txpower(sdata, update_txp_type);
2175
2176 return 0;
2177 }
2178
2179 switch (type) {
2180 case NL80211_TX_POWER_AUTOMATIC:
2181 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2182 txp_type = NL80211_TX_POWER_LIMITED;
2183 break;
2184 case NL80211_TX_POWER_LIMITED:
2185 case NL80211_TX_POWER_FIXED:
2186 if (mbm < 0 || (mbm % 100))
2187 return -EOPNOTSUPP;
2188 local->user_power_level = MBM_TO_DBM(mbm);
2189 break;
2190 }
2191
2192 mutex_lock(&local->iflist_mtx);
2193 list_for_each_entry(sdata, &local->interfaces, list) {
2194 sdata->user_power_level = local->user_power_level;
2195 if (txp_type != sdata->vif.bss_conf.txpower_type)
2196 update_txp_type = true;
2197 sdata->vif.bss_conf.txpower_type = txp_type;
2198 }
2199 list_for_each_entry(sdata, &local->interfaces, list)
2200 ieee80211_recalc_txpower(sdata, update_txp_type);
2201 mutex_unlock(&local->iflist_mtx);
2202
2203 return 0;
2204 }
2205
2206 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2207 struct wireless_dev *wdev,
2208 int *dbm)
2209 {
2210 struct ieee80211_local *local = wiphy_priv(wiphy);
2211 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2212
2213 if (local->ops->get_txpower)
2214 return drv_get_txpower(local, sdata, dbm);
2215
2216 if (!local->use_chanctx)
2217 *dbm = local->hw.conf.power_level;
2218 else
2219 *dbm = sdata->vif.bss_conf.txpower;
2220
2221 return 0;
2222 }
2223
2224 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2225 const u8 *addr)
2226 {
2227 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2228
2229 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2230
2231 return 0;
2232 }
2233
2234 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2235 {
2236 struct ieee80211_local *local = wiphy_priv(wiphy);
2237
2238 drv_rfkill_poll(local);
2239 }
2240
2241 #ifdef CONFIG_NL80211_TESTMODE
2242 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2243 struct wireless_dev *wdev,
2244 void *data, int len)
2245 {
2246 struct ieee80211_local *local = wiphy_priv(wiphy);
2247 struct ieee80211_vif *vif = NULL;
2248
2249 if (!local->ops->testmode_cmd)
2250 return -EOPNOTSUPP;
2251
2252 if (wdev) {
2253 struct ieee80211_sub_if_data *sdata;
2254
2255 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2256 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2257 vif = &sdata->vif;
2258 }
2259
2260 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2261 }
2262
2263 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2264 struct sk_buff *skb,
2265 struct netlink_callback *cb,
2266 void *data, int len)
2267 {
2268 struct ieee80211_local *local = wiphy_priv(wiphy);
2269
2270 if (!local->ops->testmode_dump)
2271 return -EOPNOTSUPP;
2272
2273 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2274 }
2275 #endif
2276
2277 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2278 enum ieee80211_smps_mode smps_mode)
2279 {
2280 struct sta_info *sta;
2281 enum ieee80211_smps_mode old_req;
2282
2283 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2284 return -EINVAL;
2285
2286 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2287 return 0;
2288
2289 old_req = sdata->u.ap.req_smps;
2290 sdata->u.ap.req_smps = smps_mode;
2291
2292 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2293 if (old_req == smps_mode ||
2294 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2295 return 0;
2296
2297 /* If no associated stations, there's no need to do anything */
2298 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2299 sdata->smps_mode = smps_mode;
2300 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2301 return 0;
2302 }
2303
2304 ht_dbg(sdata,
2305 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2306 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2307
2308 mutex_lock(&sdata->local->sta_mtx);
2309 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2310 /*
2311 * Only stations associated to our AP and
2312 * associated VLANs
2313 */
2314 if (sta->sdata->bss != &sdata->u.ap)
2315 continue;
2316
2317 /* This station doesn't support MIMO - skip it */
2318 if (sta_info_tx_streams(sta) == 1)
2319 continue;
2320
2321 /*
2322 * Don't wake up a STA just to send the action frame
2323 * unless we are getting more restrictive.
2324 */
2325 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2326 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2327 smps_mode)) {
2328 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2329 sta->sta.addr);
2330 continue;
2331 }
2332
2333 /*
2334 * If the STA is not authorized, wait until it gets
2335 * authorized and the action frame will be sent then.
2336 */
2337 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2338 continue;
2339
2340 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2341 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2342 sdata->vif.bss_conf.bssid);
2343 }
2344 mutex_unlock(&sdata->local->sta_mtx);
2345
2346 sdata->smps_mode = smps_mode;
2347 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2348
2349 return 0;
2350 }
2351
2352 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2353 enum ieee80211_smps_mode smps_mode)
2354 {
2355 const u8 *ap;
2356 enum ieee80211_smps_mode old_req;
2357 int err;
2358
2359 lockdep_assert_held(&sdata->wdev.mtx);
2360
2361 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2362 return -EINVAL;
2363
2364 old_req = sdata->u.mgd.req_smps;
2365 sdata->u.mgd.req_smps = smps_mode;
2366
2367 if (old_req == smps_mode &&
2368 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2369 return 0;
2370
2371 /*
2372 * If not associated, or current association is not an HT
2373 * association, there's no need to do anything, just store
2374 * the new value until we associate.
2375 */
2376 if (!sdata->u.mgd.associated ||
2377 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2378 return 0;
2379
2380 ap = sdata->u.mgd.associated->bssid;
2381
2382 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2383 if (sdata->u.mgd.powersave)
2384 smps_mode = IEEE80211_SMPS_DYNAMIC;
2385 else
2386 smps_mode = IEEE80211_SMPS_OFF;
2387 }
2388
2389 /* send SM PS frame to AP */
2390 err = ieee80211_send_smps_action(sdata, smps_mode,
2391 ap, ap);
2392 if (err)
2393 sdata->u.mgd.req_smps = old_req;
2394
2395 return err;
2396 }
2397
2398 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2399 bool enabled, int timeout)
2400 {
2401 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2402 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2403
2404 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2405 return -EOPNOTSUPP;
2406
2407 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2408 return -EOPNOTSUPP;
2409
2410 if (enabled == sdata->u.mgd.powersave &&
2411 timeout == local->dynamic_ps_forced_timeout)
2412 return 0;
2413
2414 sdata->u.mgd.powersave = enabled;
2415 local->dynamic_ps_forced_timeout = timeout;
2416
2417 /* no change, but if automatic follow powersave */
2418 sdata_lock(sdata);
2419 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2420 sdata_unlock(sdata);
2421
2422 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2423 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2424
2425 ieee80211_recalc_ps(local, -1);
2426 ieee80211_recalc_ps_vif(sdata);
2427
2428 return 0;
2429 }
2430
2431 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2432 struct net_device *dev,
2433 s32 rssi_thold, u32 rssi_hyst)
2434 {
2435 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2436 struct ieee80211_vif *vif = &sdata->vif;
2437 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2438
2439 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2440 rssi_hyst == bss_conf->cqm_rssi_hyst)
2441 return 0;
2442
2443 bss_conf->cqm_rssi_thold = rssi_thold;
2444 bss_conf->cqm_rssi_hyst = rssi_hyst;
2445
2446 /* tell the driver upon association, unless already associated */
2447 if (sdata->u.mgd.associated &&
2448 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2449 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2450
2451 return 0;
2452 }
2453
2454 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2455 struct net_device *dev,
2456 const u8 *addr,
2457 const struct cfg80211_bitrate_mask *mask)
2458 {
2459 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2460 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2461 int i, ret;
2462
2463 if (!ieee80211_sdata_running(sdata))
2464 return -ENETDOWN;
2465
2466 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2467 ret = drv_set_bitrate_mask(local, sdata, mask);
2468 if (ret)
2469 return ret;
2470 }
2471
2472 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2473 struct ieee80211_supported_band *sband = wiphy->bands[i];
2474 int j;
2475
2476 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2477 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2478 sizeof(mask->control[i].ht_mcs));
2479
2480 sdata->rc_has_mcs_mask[i] = false;
2481 if (!sband)
2482 continue;
2483
2484 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2485 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2486 sdata->rc_has_mcs_mask[i] = true;
2487 break;
2488 }
2489 }
2490
2491 return 0;
2492 }
2493
2494 static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
2495 struct ieee80211_roc_work *new_roc,
2496 struct ieee80211_roc_work *cur_roc)
2497 {
2498 unsigned long now = jiffies;
2499 unsigned long remaining = cur_roc->hw_start_time +
2500 msecs_to_jiffies(cur_roc->duration) -
2501 now;
2502
2503 if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
2504 return false;
2505
2506 /* if it doesn't fit entirely, schedule a new one */
2507 if (new_roc->duration > jiffies_to_msecs(remaining))
2508 return false;
2509
2510 ieee80211_handle_roc_started(new_roc);
2511
2512 /* add to dependents so we send the expired event properly */
2513 list_add_tail(&new_roc->list, &cur_roc->dependents);
2514 return true;
2515 }
2516
2517 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2518 struct ieee80211_sub_if_data *sdata,
2519 struct ieee80211_channel *channel,
2520 unsigned int duration, u64 *cookie,
2521 struct sk_buff *txskb,
2522 enum ieee80211_roc_type type)
2523 {
2524 struct ieee80211_roc_work *roc, *tmp;
2525 bool queued = false;
2526 int ret;
2527
2528 lockdep_assert_held(&local->mtx);
2529
2530 if (local->use_chanctx && !local->ops->remain_on_channel)
2531 return -EOPNOTSUPP;
2532
2533 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2534 if (!roc)
2535 return -ENOMEM;
2536
2537 /*
2538 * If the duration is zero, then the driver
2539 * wouldn't actually do anything. Set it to
2540 * 10 for now.
2541 *
2542 * TODO: cancel the off-channel operation
2543 * when we get the SKB's TX status and
2544 * the wait time was zero before.
2545 */
2546 if (!duration)
2547 duration = 10;
2548
2549 roc->chan = channel;
2550 roc->duration = duration;
2551 roc->req_duration = duration;
2552 roc->frame = txskb;
2553 roc->type = type;
2554 roc->mgmt_tx_cookie = (unsigned long)txskb;
2555 roc->sdata = sdata;
2556 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2557 INIT_LIST_HEAD(&roc->dependents);
2558
2559 /*
2560 * cookie is either the roc cookie (for normal roc)
2561 * or the SKB (for mgmt TX)
2562 */
2563 if (!txskb) {
2564 /* local->mtx protects this */
2565 local->roc_cookie_counter++;
2566 roc->cookie = local->roc_cookie_counter;
2567 /* wow, you wrapped 64 bits ... more likely a bug */
2568 if (WARN_ON(roc->cookie == 0)) {
2569 roc->cookie = 1;
2570 local->roc_cookie_counter++;
2571 }
2572 *cookie = roc->cookie;
2573 } else {
2574 *cookie = (unsigned long)txskb;
2575 }
2576
2577 /* if there's one pending or we're scanning, queue this one */
2578 if (!list_empty(&local->roc_list) ||
2579 local->scanning || ieee80211_is_radar_required(local))
2580 goto out_check_combine;
2581
2582 /* if not HW assist, just queue & schedule work */
2583 if (!local->ops->remain_on_channel) {
2584 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2585 goto out_queue;
2586 }
2587
2588 /* otherwise actually kick it off here (for error handling) */
2589
2590 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2591 if (ret) {
2592 kfree(roc);
2593 return ret;
2594 }
2595
2596 roc->started = true;
2597 goto out_queue;
2598
2599 out_check_combine:
2600 list_for_each_entry(tmp, &local->roc_list, list) {
2601 if (tmp->chan != channel || tmp->sdata != sdata)
2602 continue;
2603
2604 /*
2605 * Extend this ROC if possible:
2606 *
2607 * If it hasn't started yet, just increase the duration
2608 * and add the new one to the list of dependents.
2609 * If the type of the new ROC has higher priority, modify the
2610 * type of the previous one to match that of the new one.
2611 */
2612 if (!tmp->started) {
2613 list_add_tail(&roc->list, &tmp->dependents);
2614 tmp->duration = max(tmp->duration, roc->duration);
2615 tmp->type = max(tmp->type, roc->type);
2616 queued = true;
2617 break;
2618 }
2619
2620 /* If it has already started, it's more difficult ... */
2621 if (local->ops->remain_on_channel) {
2622 /*
2623 * In the offloaded ROC case, if it hasn't begun, add
2624 * this new one to the dependent list to be handled
2625 * when the master one begins. If it has begun,
2626 * check if it fits entirely within the existing one,
2627 * in which case it will just be dependent as well.
2628 * Otherwise, schedule it by itself.
2629 */
2630 if (!tmp->hw_begun) {
2631 list_add_tail(&roc->list, &tmp->dependents);
2632 queued = true;
2633 break;
2634 }
2635
2636 if (ieee80211_coalesce_started_roc(local, roc, tmp))
2637 queued = true;
2638 } else if (del_timer_sync(&tmp->work.timer)) {
2639 unsigned long new_end;
2640
2641 /*
2642 * In the software ROC case, cancel the timer, if
2643 * that fails then the finish work is already
2644 * queued/pending and thus we queue the new ROC
2645 * normally, if that succeeds then we can extend
2646 * the timer duration and TX the frame (if any.)
2647 */
2648
2649 list_add_tail(&roc->list, &tmp->dependents);
2650 queued = true;
2651
2652 new_end = jiffies + msecs_to_jiffies(roc->duration);
2653
2654 /* ok, it was started & we canceled timer */
2655 if (time_after(new_end, tmp->work.timer.expires))
2656 mod_timer(&tmp->work.timer, new_end);
2657 else
2658 add_timer(&tmp->work.timer);
2659
2660 ieee80211_handle_roc_started(roc);
2661 }
2662 break;
2663 }
2664
2665 out_queue:
2666 if (!queued)
2667 list_add_tail(&roc->list, &local->roc_list);
2668
2669 return 0;
2670 }
2671
2672 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2673 struct wireless_dev *wdev,
2674 struct ieee80211_channel *chan,
2675 unsigned int duration,
2676 u64 *cookie)
2677 {
2678 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2679 struct ieee80211_local *local = sdata->local;
2680 int ret;
2681
2682 mutex_lock(&local->mtx);
2683 ret = ieee80211_start_roc_work(local, sdata, chan,
2684 duration, cookie, NULL,
2685 IEEE80211_ROC_TYPE_NORMAL);
2686 mutex_unlock(&local->mtx);
2687
2688 return ret;
2689 }
2690
2691 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2692 u64 cookie, bool mgmt_tx)
2693 {
2694 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2695 int ret;
2696
2697 mutex_lock(&local->mtx);
2698 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2699 struct ieee80211_roc_work *dep, *tmp2;
2700
2701 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2702 if (!mgmt_tx && dep->cookie != cookie)
2703 continue;
2704 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2705 continue;
2706 /* found dependent item -- just remove it */
2707 list_del(&dep->list);
2708 mutex_unlock(&local->mtx);
2709
2710 ieee80211_roc_notify_destroy(dep, true);
2711 return 0;
2712 }
2713
2714 if (!mgmt_tx && roc->cookie != cookie)
2715 continue;
2716 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2717 continue;
2718
2719 found = roc;
2720 break;
2721 }
2722
2723 if (!found) {
2724 mutex_unlock(&local->mtx);
2725 return -ENOENT;
2726 }
2727
2728 /*
2729 * We found the item to cancel, so do that. Note that it
2730 * may have dependents, which we also cancel (and send
2731 * the expired signal for.) Not doing so would be quite
2732 * tricky here, but we may need to fix it later.
2733 */
2734
2735 if (local->ops->remain_on_channel) {
2736 if (found->started) {
2737 ret = drv_cancel_remain_on_channel(local);
2738 if (WARN_ON_ONCE(ret)) {
2739 mutex_unlock(&local->mtx);
2740 return ret;
2741 }
2742 }
2743
2744 list_del(&found->list);
2745
2746 if (found->started)
2747 ieee80211_start_next_roc(local);
2748 mutex_unlock(&local->mtx);
2749
2750 ieee80211_roc_notify_destroy(found, true);
2751 } else {
2752 /* work may be pending so use it all the time */
2753 found->abort = true;
2754 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2755
2756 mutex_unlock(&local->mtx);
2757
2758 /* work will clean up etc */
2759 flush_delayed_work(&found->work);
2760 WARN_ON(!found->to_be_freed);
2761 kfree(found);
2762 }
2763
2764 return 0;
2765 }
2766
2767 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2768 struct wireless_dev *wdev,
2769 u64 cookie)
2770 {
2771 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2772 struct ieee80211_local *local = sdata->local;
2773
2774 return ieee80211_cancel_roc(local, cookie, false);
2775 }
2776
2777 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2778 struct net_device *dev,
2779 struct cfg80211_chan_def *chandef,
2780 u32 cac_time_ms)
2781 {
2782 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2783 struct ieee80211_local *local = sdata->local;
2784 int err;
2785
2786 mutex_lock(&local->mtx);
2787 if (!list_empty(&local->roc_list) || local->scanning) {
2788 err = -EBUSY;
2789 goto out_unlock;
2790 }
2791
2792 /* whatever, but channel contexts should not complain about that one */
2793 sdata->smps_mode = IEEE80211_SMPS_OFF;
2794 sdata->needed_rx_chains = local->rx_chains;
2795
2796 err = ieee80211_vif_use_channel(sdata, chandef,
2797 IEEE80211_CHANCTX_SHARED);
2798 if (err)
2799 goto out_unlock;
2800
2801 ieee80211_queue_delayed_work(&sdata->local->hw,
2802 &sdata->dfs_cac_timer_work,
2803 msecs_to_jiffies(cac_time_ms));
2804
2805 out_unlock:
2806 mutex_unlock(&local->mtx);
2807 return err;
2808 }
2809
2810 static struct cfg80211_beacon_data *
2811 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2812 {
2813 struct cfg80211_beacon_data *new_beacon;
2814 u8 *pos;
2815 int len;
2816
2817 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2818 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2819 beacon->probe_resp_len;
2820
2821 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2822 if (!new_beacon)
2823 return NULL;
2824
2825 pos = (u8 *)(new_beacon + 1);
2826 if (beacon->head_len) {
2827 new_beacon->head_len = beacon->head_len;
2828 new_beacon->head = pos;
2829 memcpy(pos, beacon->head, beacon->head_len);
2830 pos += beacon->head_len;
2831 }
2832 if (beacon->tail_len) {
2833 new_beacon->tail_len = beacon->tail_len;
2834 new_beacon->tail = pos;
2835 memcpy(pos, beacon->tail, beacon->tail_len);
2836 pos += beacon->tail_len;
2837 }
2838 if (beacon->beacon_ies_len) {
2839 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2840 new_beacon->beacon_ies = pos;
2841 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2842 pos += beacon->beacon_ies_len;
2843 }
2844 if (beacon->proberesp_ies_len) {
2845 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2846 new_beacon->proberesp_ies = pos;
2847 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2848 pos += beacon->proberesp_ies_len;
2849 }
2850 if (beacon->assocresp_ies_len) {
2851 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2852 new_beacon->assocresp_ies = pos;
2853 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2854 pos += beacon->assocresp_ies_len;
2855 }
2856 if (beacon->probe_resp_len) {
2857 new_beacon->probe_resp_len = beacon->probe_resp_len;
2858 beacon->probe_resp = pos;
2859 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2860 pos += beacon->probe_resp_len;
2861 }
2862
2863 return new_beacon;
2864 }
2865
2866 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2867 {
2868 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2869
2870 ieee80211_queue_work(&sdata->local->hw,
2871 &sdata->csa_finalize_work);
2872 }
2873 EXPORT_SYMBOL(ieee80211_csa_finish);
2874
2875 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2876 u32 *changed)
2877 {
2878 int err;
2879
2880 switch (sdata->vif.type) {
2881 case NL80211_IFTYPE_AP:
2882 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2883 NULL);
2884 kfree(sdata->u.ap.next_beacon);
2885 sdata->u.ap.next_beacon = NULL;
2886
2887 if (err < 0)
2888 return err;
2889 *changed |= err;
2890 break;
2891 case NL80211_IFTYPE_ADHOC:
2892 err = ieee80211_ibss_finish_csa(sdata);
2893 if (err < 0)
2894 return err;
2895 *changed |= err;
2896 break;
2897 #ifdef CONFIG_MAC80211_MESH
2898 case NL80211_IFTYPE_MESH_POINT:
2899 err = ieee80211_mesh_finish_csa(sdata);
2900 if (err < 0)
2901 return err;
2902 *changed |= err;
2903 break;
2904 #endif
2905 default:
2906 WARN_ON(1);
2907 return -EINVAL;
2908 }
2909
2910 return 0;
2911 }
2912
2913 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2914 {
2915 struct ieee80211_local *local = sdata->local;
2916 u32 changed = 0;
2917 int err;
2918
2919 sdata_assert_lock(sdata);
2920 lockdep_assert_held(&local->mtx);
2921 lockdep_assert_held(&local->chanctx_mtx);
2922
2923 /*
2924 * using reservation isn't immediate as it may be deferred until later
2925 * with multi-vif. once reservation is complete it will re-schedule the
2926 * work with no reserved_chanctx so verify chandef to check if it
2927 * completed successfully
2928 */
2929
2930 if (sdata->reserved_chanctx) {
2931 /*
2932 * with multi-vif csa driver may call ieee80211_csa_finish()
2933 * many times while waiting for other interfaces to use their
2934 * reservations
2935 */
2936 if (sdata->reserved_ready)
2937 return 0;
2938
2939 return ieee80211_vif_use_reserved_context(sdata);
2940 }
2941
2942 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2943 &sdata->csa_chandef))
2944 return -EINVAL;
2945
2946 sdata->vif.csa_active = false;
2947
2948 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2949 if (err)
2950 return err;
2951
2952 ieee80211_bss_info_change_notify(sdata, changed);
2953
2954 if (sdata->csa_block_tx) {
2955 ieee80211_wake_vif_queues(local, sdata,
2956 IEEE80211_QUEUE_STOP_REASON_CSA);
2957 sdata->csa_block_tx = false;
2958 }
2959
2960 err = drv_post_channel_switch(sdata);
2961 if (err)
2962 return err;
2963
2964 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2965
2966 return 0;
2967 }
2968
2969 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2970 {
2971 if (__ieee80211_csa_finalize(sdata)) {
2972 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2973 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2974 GFP_KERNEL);
2975 }
2976 }
2977
2978 void ieee80211_csa_finalize_work(struct work_struct *work)
2979 {
2980 struct ieee80211_sub_if_data *sdata =
2981 container_of(work, struct ieee80211_sub_if_data,
2982 csa_finalize_work);
2983 struct ieee80211_local *local = sdata->local;
2984
2985 sdata_lock(sdata);
2986 mutex_lock(&local->mtx);
2987 mutex_lock(&local->chanctx_mtx);
2988
2989 /* AP might have been stopped while waiting for the lock. */
2990 if (!sdata->vif.csa_active)
2991 goto unlock;
2992
2993 if (!ieee80211_sdata_running(sdata))
2994 goto unlock;
2995
2996 ieee80211_csa_finalize(sdata);
2997
2998 unlock:
2999 mutex_unlock(&local->chanctx_mtx);
3000 mutex_unlock(&local->mtx);
3001 sdata_unlock(sdata);
3002 }
3003
3004 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3005 struct cfg80211_csa_settings *params,
3006 u32 *changed)
3007 {
3008 struct ieee80211_csa_settings csa = {};
3009 int err;
3010
3011 switch (sdata->vif.type) {
3012 case NL80211_IFTYPE_AP:
3013 sdata->u.ap.next_beacon =
3014 cfg80211_beacon_dup(&params->beacon_after);
3015 if (!sdata->u.ap.next_beacon)
3016 return -ENOMEM;
3017
3018 /*
3019 * With a count of 0, we don't have to wait for any
3020 * TBTT before switching, so complete the CSA
3021 * immediately. In theory, with a count == 1 we
3022 * should delay the switch until just before the next
3023 * TBTT, but that would complicate things so we switch
3024 * immediately too. If we would delay the switch
3025 * until the next TBTT, we would have to set the probe
3026 * response here.
3027 *
3028 * TODO: A channel switch with count <= 1 without
3029 * sending a CSA action frame is kind of useless,
3030 * because the clients won't know we're changing
3031 * channels. The action frame must be implemented
3032 * either here or in the userspace.
3033 */
3034 if (params->count <= 1)
3035 break;
3036
3037 if ((params->n_counter_offsets_beacon >
3038 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3039 (params->n_counter_offsets_presp >
3040 IEEE80211_MAX_CSA_COUNTERS_NUM))
3041 return -EINVAL;
3042
3043 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3044 csa.counter_offsets_presp = params->counter_offsets_presp;
3045 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3046 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3047 csa.count = params->count;
3048
3049 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3050 if (err < 0) {
3051 kfree(sdata->u.ap.next_beacon);
3052 return err;
3053 }
3054 *changed |= err;
3055
3056 break;
3057 case NL80211_IFTYPE_ADHOC:
3058 if (!sdata->vif.bss_conf.ibss_joined)
3059 return -EINVAL;
3060
3061 if (params->chandef.width != sdata->u.ibss.chandef.width)
3062 return -EINVAL;
3063
3064 switch (params->chandef.width) {
3065 case NL80211_CHAN_WIDTH_40:
3066 if (cfg80211_get_chandef_type(&params->chandef) !=
3067 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3068 return -EINVAL;
3069 case NL80211_CHAN_WIDTH_5:
3070 case NL80211_CHAN_WIDTH_10:
3071 case NL80211_CHAN_WIDTH_20_NOHT:
3072 case NL80211_CHAN_WIDTH_20:
3073 break;
3074 default:
3075 return -EINVAL;
3076 }
3077
3078 /* changes into another band are not supported */
3079 if (sdata->u.ibss.chandef.chan->band !=
3080 params->chandef.chan->band)
3081 return -EINVAL;
3082
3083 /* see comments in the NL80211_IFTYPE_AP block */
3084 if (params->count > 1) {
3085 err = ieee80211_ibss_csa_beacon(sdata, params);
3086 if (err < 0)
3087 return err;
3088 *changed |= err;
3089 }
3090
3091 ieee80211_send_action_csa(sdata, params);
3092
3093 break;
3094 #ifdef CONFIG_MAC80211_MESH
3095 case NL80211_IFTYPE_MESH_POINT: {
3096 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3097
3098 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3099 return -EINVAL;
3100
3101 /* changes into another band are not supported */
3102 if (sdata->vif.bss_conf.chandef.chan->band !=
3103 params->chandef.chan->band)
3104 return -EINVAL;
3105
3106 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3107 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3108 if (!ifmsh->pre_value)
3109 ifmsh->pre_value = 1;
3110 else
3111 ifmsh->pre_value++;
3112 }
3113
3114 /* see comments in the NL80211_IFTYPE_AP block */
3115 if (params->count > 1) {
3116 err = ieee80211_mesh_csa_beacon(sdata, params);
3117 if (err < 0) {
3118 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3119 return err;
3120 }
3121 *changed |= err;
3122 }
3123
3124 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3125 ieee80211_send_action_csa(sdata, params);
3126
3127 break;
3128 }
3129 #endif
3130 default:
3131 return -EOPNOTSUPP;
3132 }
3133
3134 return 0;
3135 }
3136
3137 static int
3138 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3139 struct cfg80211_csa_settings *params)
3140 {
3141 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3142 struct ieee80211_local *local = sdata->local;
3143 struct ieee80211_channel_switch ch_switch;
3144 struct ieee80211_chanctx_conf *conf;
3145 struct ieee80211_chanctx *chanctx;
3146 u32 changed = 0;
3147 int err;
3148
3149 sdata_assert_lock(sdata);
3150 lockdep_assert_held(&local->mtx);
3151
3152 if (!list_empty(&local->roc_list) || local->scanning)
3153 return -EBUSY;
3154
3155 if (sdata->wdev.cac_started)
3156 return -EBUSY;
3157
3158 if (cfg80211_chandef_identical(&params->chandef,
3159 &sdata->vif.bss_conf.chandef))
3160 return -EINVAL;
3161
3162 /* don't allow another channel switch if one is already active. */
3163 if (sdata->vif.csa_active)
3164 return -EBUSY;
3165
3166 mutex_lock(&local->chanctx_mtx);
3167 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3168 lockdep_is_held(&local->chanctx_mtx));
3169 if (!conf) {
3170 err = -EBUSY;
3171 goto out;
3172 }
3173
3174 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3175 if (!chanctx) {
3176 err = -EBUSY;
3177 goto out;
3178 }
3179
3180 ch_switch.timestamp = 0;
3181 ch_switch.device_timestamp = 0;
3182 ch_switch.block_tx = params->block_tx;
3183 ch_switch.chandef = params->chandef;
3184 ch_switch.count = params->count;
3185
3186 err = drv_pre_channel_switch(sdata, &ch_switch);
3187 if (err)
3188 goto out;
3189
3190 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3191 chanctx->mode,
3192 params->radar_required);
3193 if (err)
3194 goto out;
3195
3196 /* if reservation is invalid then this will fail */
3197 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3198 if (err) {
3199 ieee80211_vif_unreserve_chanctx(sdata);
3200 goto out;
3201 }
3202
3203 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3204 if (err) {
3205 ieee80211_vif_unreserve_chanctx(sdata);
3206 goto out;
3207 }
3208
3209 sdata->csa_chandef = params->chandef;
3210 sdata->csa_block_tx = params->block_tx;
3211 sdata->vif.csa_active = true;
3212
3213 if (sdata->csa_block_tx)
3214 ieee80211_stop_vif_queues(local, sdata,
3215 IEEE80211_QUEUE_STOP_REASON_CSA);
3216
3217 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3218 params->count);
3219
3220 if (changed) {
3221 ieee80211_bss_info_change_notify(sdata, changed);
3222 drv_channel_switch_beacon(sdata, &params->chandef);
3223 } else {
3224 /* if the beacon didn't change, we can finalize immediately */
3225 ieee80211_csa_finalize(sdata);
3226 }
3227
3228 out:
3229 mutex_unlock(&local->chanctx_mtx);
3230 return err;
3231 }
3232
3233 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3234 struct cfg80211_csa_settings *params)
3235 {
3236 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3237 struct ieee80211_local *local = sdata->local;
3238 int err;
3239
3240 mutex_lock(&local->mtx);
3241 err = __ieee80211_channel_switch(wiphy, dev, params);
3242 mutex_unlock(&local->mtx);
3243
3244 return err;
3245 }
3246
3247 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3248 struct cfg80211_mgmt_tx_params *params,
3249 u64 *cookie)
3250 {
3251 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3252 struct ieee80211_local *local = sdata->local;
3253 struct sk_buff *skb;
3254 struct sta_info *sta;
3255 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3256 bool need_offchan = false;
3257 u32 flags;
3258 int ret;
3259 u8 *data;
3260
3261 if (params->dont_wait_for_ack)
3262 flags = IEEE80211_TX_CTL_NO_ACK;
3263 else
3264 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3265 IEEE80211_TX_CTL_REQ_TX_STATUS;
3266
3267 if (params->no_cck)
3268 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3269
3270 switch (sdata->vif.type) {
3271 case NL80211_IFTYPE_ADHOC:
3272 if (!sdata->vif.bss_conf.ibss_joined)
3273 need_offchan = true;
3274 /* fall through */
3275 #ifdef CONFIG_MAC80211_MESH
3276 case NL80211_IFTYPE_MESH_POINT:
3277 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3278 !sdata->u.mesh.mesh_id_len)
3279 need_offchan = true;
3280 /* fall through */
3281 #endif
3282 case NL80211_IFTYPE_AP:
3283 case NL80211_IFTYPE_AP_VLAN:
3284 case NL80211_IFTYPE_P2P_GO:
3285 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3286 !ieee80211_vif_is_mesh(&sdata->vif) &&
3287 !rcu_access_pointer(sdata->bss->beacon))
3288 need_offchan = true;
3289 if (!ieee80211_is_action(mgmt->frame_control) ||
3290 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3291 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3292 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3293 break;
3294 rcu_read_lock();
3295 sta = sta_info_get(sdata, mgmt->da);
3296 rcu_read_unlock();
3297 if (!sta)
3298 return -ENOLINK;
3299 break;
3300 case NL80211_IFTYPE_STATION:
3301 case NL80211_IFTYPE_P2P_CLIENT:
3302 if (!sdata->u.mgd.associated)
3303 need_offchan = true;
3304 break;
3305 case NL80211_IFTYPE_P2P_DEVICE:
3306 need_offchan = true;
3307 break;
3308 default:
3309 return -EOPNOTSUPP;
3310 }
3311
3312 /* configurations requiring offchan cannot work if no channel has been
3313 * specified
3314 */
3315 if (need_offchan && !params->chan)
3316 return -EINVAL;
3317
3318 mutex_lock(&local->mtx);
3319
3320 /* Check if the operating channel is the requested channel */
3321 if (!need_offchan) {
3322 struct ieee80211_chanctx_conf *chanctx_conf;
3323
3324 rcu_read_lock();
3325 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3326
3327 if (chanctx_conf) {
3328 need_offchan = params->chan &&
3329 (params->chan !=
3330 chanctx_conf->def.chan);
3331 } else if (!params->chan) {
3332 ret = -EINVAL;
3333 rcu_read_unlock();
3334 goto out_unlock;
3335 } else {
3336 need_offchan = true;
3337 }
3338 rcu_read_unlock();
3339 }
3340
3341 if (need_offchan && !params->offchan) {
3342 ret = -EBUSY;
3343 goto out_unlock;
3344 }
3345
3346 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3347 if (!skb) {
3348 ret = -ENOMEM;
3349 goto out_unlock;
3350 }
3351 skb_reserve(skb, local->hw.extra_tx_headroom);
3352
3353 data = skb_put(skb, params->len);
3354 memcpy(data, params->buf, params->len);
3355
3356 /* Update CSA counters */
3357 if (sdata->vif.csa_active &&
3358 (sdata->vif.type == NL80211_IFTYPE_AP ||
3359 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3360 params->n_csa_offsets) {
3361 int i;
3362 struct beacon_data *beacon = NULL;
3363
3364 rcu_read_lock();
3365
3366 if (sdata->vif.type == NL80211_IFTYPE_AP)
3367 beacon = rcu_dereference(sdata->u.ap.beacon);
3368 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3369 beacon = rcu_dereference(sdata->u.ibss.presp);
3370 else if (ieee80211_vif_is_mesh(&sdata->vif))
3371 beacon = rcu_dereference(sdata->u.mesh.beacon);
3372
3373 if (beacon)
3374 for (i = 0; i < params->n_csa_offsets; i++)
3375 data[params->csa_offsets[i]] =
3376 beacon->csa_current_counter;
3377
3378 rcu_read_unlock();
3379 }
3380
3381 IEEE80211_SKB_CB(skb)->flags = flags;
3382
3383 skb->dev = sdata->dev;
3384
3385 if (!need_offchan) {
3386 *cookie = (unsigned long) skb;
3387 ieee80211_tx_skb(sdata, skb);
3388 ret = 0;
3389 goto out_unlock;
3390 }
3391
3392 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3393 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3394 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3395 IEEE80211_SKB_CB(skb)->hw_queue =
3396 local->hw.offchannel_tx_hw_queue;
3397
3398 /* This will handle all kinds of coalescing and immediate TX */
3399 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3400 params->wait, cookie, skb,
3401 IEEE80211_ROC_TYPE_MGMT_TX);
3402 if (ret)
3403 kfree_skb(skb);
3404 out_unlock:
3405 mutex_unlock(&local->mtx);
3406 return ret;
3407 }
3408
3409 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3410 struct wireless_dev *wdev,
3411 u64 cookie)
3412 {
3413 struct ieee80211_local *local = wiphy_priv(wiphy);
3414
3415 return ieee80211_cancel_roc(local, cookie, true);
3416 }
3417
3418 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3419 struct wireless_dev *wdev,
3420 u16 frame_type, bool reg)
3421 {
3422 struct ieee80211_local *local = wiphy_priv(wiphy);
3423
3424 switch (frame_type) {
3425 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3426 if (reg)
3427 local->probe_req_reg++;
3428 else
3429 local->probe_req_reg--;
3430
3431 if (!local->open_count)
3432 break;
3433
3434 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3435 break;
3436 default:
3437 break;
3438 }
3439 }
3440
3441 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3442 {
3443 struct ieee80211_local *local = wiphy_priv(wiphy);
3444
3445 if (local->started)
3446 return -EOPNOTSUPP;
3447
3448 return drv_set_antenna(local, tx_ant, rx_ant);
3449 }
3450
3451 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3452 {
3453 struct ieee80211_local *local = wiphy_priv(wiphy);
3454
3455 return drv_get_antenna(local, tx_ant, rx_ant);
3456 }
3457
3458 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3459 struct net_device *dev,
3460 struct cfg80211_gtk_rekey_data *data)
3461 {
3462 struct ieee80211_local *local = wiphy_priv(wiphy);
3463 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3464
3465 if (!local->ops->set_rekey_data)
3466 return -EOPNOTSUPP;
3467
3468 drv_set_rekey_data(local, sdata, data);
3469
3470 return 0;
3471 }
3472
3473 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3474 const u8 *peer, u64 *cookie)
3475 {
3476 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3477 struct ieee80211_local *local = sdata->local;
3478 struct ieee80211_qos_hdr *nullfunc;
3479 struct sk_buff *skb;
3480 int size = sizeof(*nullfunc);
3481 __le16 fc;
3482 bool qos;
3483 struct ieee80211_tx_info *info;
3484 struct sta_info *sta;
3485 struct ieee80211_chanctx_conf *chanctx_conf;
3486 enum ieee80211_band band;
3487
3488 rcu_read_lock();
3489 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3490 if (WARN_ON(!chanctx_conf)) {
3491 rcu_read_unlock();
3492 return -EINVAL;
3493 }
3494 band = chanctx_conf->def.chan->band;
3495 sta = sta_info_get_bss(sdata, peer);
3496 if (sta) {
3497 qos = sta->sta.wme;
3498 } else {
3499 rcu_read_unlock();
3500 return -ENOLINK;
3501 }
3502
3503 if (qos) {
3504 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3505 IEEE80211_STYPE_QOS_NULLFUNC |
3506 IEEE80211_FCTL_FROMDS);
3507 } else {
3508 size -= 2;
3509 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3510 IEEE80211_STYPE_NULLFUNC |
3511 IEEE80211_FCTL_FROMDS);
3512 }
3513
3514 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3515 if (!skb) {
3516 rcu_read_unlock();
3517 return -ENOMEM;
3518 }
3519
3520 skb->dev = dev;
3521
3522 skb_reserve(skb, local->hw.extra_tx_headroom);
3523
3524 nullfunc = (void *) skb_put(skb, size);
3525 nullfunc->frame_control = fc;
3526 nullfunc->duration_id = 0;
3527 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3528 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3529 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3530 nullfunc->seq_ctrl = 0;
3531
3532 info = IEEE80211_SKB_CB(skb);
3533
3534 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3535 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3536 info->band = band;
3537
3538 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3539 skb->priority = 7;
3540 if (qos)
3541 nullfunc->qos_ctrl = cpu_to_le16(7);
3542
3543 local_bh_disable();
3544 ieee80211_xmit(sdata, sta, skb);
3545 local_bh_enable();
3546 rcu_read_unlock();
3547
3548 *cookie = (unsigned long) skb;
3549 return 0;
3550 }
3551
3552 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3553 struct wireless_dev *wdev,
3554 struct cfg80211_chan_def *chandef)
3555 {
3556 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3557 struct ieee80211_local *local = wiphy_priv(wiphy);
3558 struct ieee80211_chanctx_conf *chanctx_conf;
3559 int ret = -ENODATA;
3560
3561 rcu_read_lock();
3562 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3563 if (chanctx_conf) {
3564 *chandef = sdata->vif.bss_conf.chandef;
3565 ret = 0;
3566 } else if (local->open_count > 0 &&
3567 local->open_count == local->monitors &&
3568 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3569 if (local->use_chanctx)
3570 *chandef = local->monitor_chandef;
3571 else
3572 *chandef = local->_oper_chandef;
3573 ret = 0;
3574 }
3575 rcu_read_unlock();
3576
3577 return ret;
3578 }
3579
3580 #ifdef CONFIG_PM
3581 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3582 {
3583 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3584 }
3585 #endif
3586
3587 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3588 struct net_device *dev,
3589 struct cfg80211_qos_map *qos_map)
3590 {
3591 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3592 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3593
3594 if (qos_map) {
3595 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3596 if (!new_qos_map)
3597 return -ENOMEM;
3598 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3599 } else {
3600 /* A NULL qos_map was passed to disable QoS mapping */
3601 new_qos_map = NULL;
3602 }
3603
3604 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3605 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3606 if (old_qos_map)
3607 kfree_rcu(old_qos_map, rcu_head);
3608
3609 return 0;
3610 }
3611
3612 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3613 struct net_device *dev,
3614 struct cfg80211_chan_def *chandef)
3615 {
3616 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3617 int ret;
3618 u32 changed = 0;
3619
3620 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3621 if (ret == 0)
3622 ieee80211_bss_info_change_notify(sdata, changed);
3623
3624 return ret;
3625 }
3626
3627 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3628 u8 tsid, const u8 *peer, u8 up,
3629 u16 admitted_time)
3630 {
3631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3632 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3633 int ac = ieee802_1d_to_ac[up];
3634
3635 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3636 return -EOPNOTSUPP;
3637
3638 if (!(sdata->wmm_acm & BIT(up)))
3639 return -EINVAL;
3640
3641 if (ifmgd->tx_tspec[ac].admitted_time)
3642 return -EBUSY;
3643
3644 if (admitted_time) {
3645 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3646 ifmgd->tx_tspec[ac].tsid = tsid;
3647 ifmgd->tx_tspec[ac].up = up;
3648 }
3649
3650 return 0;
3651 }
3652
3653 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3654 u8 tsid, const u8 *peer)
3655 {
3656 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3657 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3658 struct ieee80211_local *local = wiphy_priv(wiphy);
3659 int ac;
3660
3661 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3662 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3663
3664 /* skip unused entries */
3665 if (!tx_tspec->admitted_time)
3666 continue;
3667
3668 if (tx_tspec->tsid != tsid)
3669 continue;
3670
3671 /* due to this new packets will be reassigned to non-ACM ACs */
3672 tx_tspec->up = -1;
3673
3674 /* Make sure that all packets have been sent to avoid to
3675 * restore the QoS params on packets that are still on the
3676 * queues.
3677 */
3678 synchronize_net();
3679 ieee80211_flush_queues(local, sdata, false);
3680
3681 /* restore the normal QoS parameters
3682 * (unconditionally to avoid races)
3683 */
3684 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3685 tx_tspec->downgraded = false;
3686 ieee80211_sta_handle_tspec_ac_params(sdata);
3687
3688 /* finally clear all the data */
3689 memset(tx_tspec, 0, sizeof(*tx_tspec));
3690
3691 return 0;
3692 }
3693
3694 return -ENOENT;
3695 }
3696
3697 const struct cfg80211_ops mac80211_config_ops = {
3698 .add_virtual_intf = ieee80211_add_iface,
3699 .del_virtual_intf = ieee80211_del_iface,
3700 .change_virtual_intf = ieee80211_change_iface,
3701 .start_p2p_device = ieee80211_start_p2p_device,
3702 .stop_p2p_device = ieee80211_stop_p2p_device,
3703 .add_key = ieee80211_add_key,
3704 .del_key = ieee80211_del_key,
3705 .get_key = ieee80211_get_key,
3706 .set_default_key = ieee80211_config_default_key,
3707 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3708 .start_ap = ieee80211_start_ap,
3709 .change_beacon = ieee80211_change_beacon,
3710 .stop_ap = ieee80211_stop_ap,
3711 .add_station = ieee80211_add_station,
3712 .del_station = ieee80211_del_station,
3713 .change_station = ieee80211_change_station,
3714 .get_station = ieee80211_get_station,
3715 .dump_station = ieee80211_dump_station,
3716 .dump_survey = ieee80211_dump_survey,
3717 #ifdef CONFIG_MAC80211_MESH
3718 .add_mpath = ieee80211_add_mpath,
3719 .del_mpath = ieee80211_del_mpath,
3720 .change_mpath = ieee80211_change_mpath,
3721 .get_mpath = ieee80211_get_mpath,
3722 .dump_mpath = ieee80211_dump_mpath,
3723 .get_mpp = ieee80211_get_mpp,
3724 .dump_mpp = ieee80211_dump_mpp,
3725 .update_mesh_config = ieee80211_update_mesh_config,
3726 .get_mesh_config = ieee80211_get_mesh_config,
3727 .join_mesh = ieee80211_join_mesh,
3728 .leave_mesh = ieee80211_leave_mesh,
3729 #endif
3730 .join_ocb = ieee80211_join_ocb,
3731 .leave_ocb = ieee80211_leave_ocb,
3732 .change_bss = ieee80211_change_bss,
3733 .set_txq_params = ieee80211_set_txq_params,
3734 .set_monitor_channel = ieee80211_set_monitor_channel,
3735 .suspend = ieee80211_suspend,
3736 .resume = ieee80211_resume,
3737 .scan = ieee80211_scan,
3738 .sched_scan_start = ieee80211_sched_scan_start,
3739 .sched_scan_stop = ieee80211_sched_scan_stop,
3740 .auth = ieee80211_auth,
3741 .assoc = ieee80211_assoc,
3742 .deauth = ieee80211_deauth,
3743 .disassoc = ieee80211_disassoc,
3744 .join_ibss = ieee80211_join_ibss,
3745 .leave_ibss = ieee80211_leave_ibss,
3746 .set_mcast_rate = ieee80211_set_mcast_rate,
3747 .set_wiphy_params = ieee80211_set_wiphy_params,
3748 .set_tx_power = ieee80211_set_tx_power,
3749 .get_tx_power = ieee80211_get_tx_power,
3750 .set_wds_peer = ieee80211_set_wds_peer,
3751 .rfkill_poll = ieee80211_rfkill_poll,
3752 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3753 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3754 .set_power_mgmt = ieee80211_set_power_mgmt,
3755 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3756 .remain_on_channel = ieee80211_remain_on_channel,
3757 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3758 .mgmt_tx = ieee80211_mgmt_tx,
3759 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3760 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3761 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3762 .set_antenna = ieee80211_set_antenna,
3763 .get_antenna = ieee80211_get_antenna,
3764 .set_rekey_data = ieee80211_set_rekey_data,
3765 .tdls_oper = ieee80211_tdls_oper,
3766 .tdls_mgmt = ieee80211_tdls_mgmt,
3767 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3768 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3769 .probe_client = ieee80211_probe_client,
3770 .set_noack_map = ieee80211_set_noack_map,
3771 #ifdef CONFIG_PM
3772 .set_wakeup = ieee80211_set_wakeup,
3773 #endif
3774 .get_channel = ieee80211_cfg_get_channel,
3775 .start_radar_detection = ieee80211_start_radar_detection,
3776 .channel_switch = ieee80211_channel_switch,
3777 .set_qos_map = ieee80211_set_qos_map,
3778 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3779 .add_tx_ts = ieee80211_add_tx_ts,
3780 .del_tx_ts = ieee80211_del_tx_ts,
3781 };
Linux kernel - Deliverables
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