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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / net / mac80211 / cfg.c
blobf4195a0f027989c4829b2f84d678373894d2fa1c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2015 Intel Mobile Communications GmbH
6 * Copyright (C) 2015-2017 Intel Deutschland GmbH
7 *
8 * This file is GPLv2 as found in COPYING.
9 */
10
11 #include <linux/ieee80211.h>
12 #include <linux/nl80211.h>
13 #include <linux/rtnetlink.h>
14 #include <linux/slab.h>
15 #include <net/net_namespace.h>
16 #include <linux/rcupdate.h>
17 #include <linux/if_ether.h>
18 #include <net/cfg80211.h>
19 #include "ieee80211_i.h"
20 #include "driver-ops.h"
21 #include "rate.h"
22 #include "mesh.h"
23 #include "wme.h"
24
25 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
26 struct vif_params *params)
27 {
28 bool mu_mimo_groups = false;
29 bool mu_mimo_follow = false;
30
31 if (params->vht_mumimo_groups) {
32 u64 membership;
33
34 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
35
36 memcpy(sdata->vif.bss_conf.mu_group.membership,
37 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
38 memcpy(sdata->vif.bss_conf.mu_group.position,
39 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
40 WLAN_USER_POSITION_LEN);
41 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
42 /* don't care about endianness - just check for 0 */
43 memcpy(&membership, params->vht_mumimo_groups,
44 WLAN_MEMBERSHIP_LEN);
45 mu_mimo_groups = membership != 0;
46 }
47
48 if (params->vht_mumimo_follow_addr) {
49 mu_mimo_follow =
50 is_valid_ether_addr(params->vht_mumimo_follow_addr);
51 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
52 params->vht_mumimo_follow_addr);
53 }
54
55 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
56 }
57
58 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
59 struct vif_params *params)
60 {
61 struct ieee80211_local *local = sdata->local;
62 struct ieee80211_sub_if_data *monitor_sdata;
63
64 /* check flags first */
65 if (params->flags && ieee80211_sdata_running(sdata)) {
66 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
67
68 /*
69 * Prohibit MONITOR_FLAG_COOK_FRAMES and
70 * MONITOR_FLAG_ACTIVE to be changed while the
71 * interface is up.
72 * Else we would need to add a lot of cruft
73 * to update everything:
74 * cooked_mntrs, monitor and all fif_* counters
75 * reconfigure hardware
76 */
77 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
78 return -EBUSY;
79 }
80
81 /* also validate MU-MIMO change */
82 monitor_sdata = rtnl_dereference(local->monitor_sdata);
83
84 if (!monitor_sdata &&
85 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
86 return -EOPNOTSUPP;
87
88 /* apply all changes now - no failures allowed */
89
90 if (monitor_sdata)
91 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
92
93 if (params->flags) {
94 if (ieee80211_sdata_running(sdata)) {
95 ieee80211_adjust_monitor_flags(sdata, -1);
96 sdata->u.mntr.flags = params->flags;
97 ieee80211_adjust_monitor_flags(sdata, 1);
98
99 ieee80211_configure_filter(local);
100 } else {
101 /*
102 * Because the interface is down, ieee80211_do_stop
103 * and ieee80211_do_open take care of "everything"
104 * mentioned in the comment above.
105 */
106 sdata->u.mntr.flags = params->flags;
107 }
108 }
109
110 return 0;
111 }
112
113 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
114 const char *name,
115 unsigned char name_assign_type,
116 enum nl80211_iftype type,
117 struct vif_params *params)
118 {
119 struct ieee80211_local *local = wiphy_priv(wiphy);
120 struct wireless_dev *wdev;
121 struct ieee80211_sub_if_data *sdata;
122 int err;
123
124 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
125 if (err)
126 return ERR_PTR(err);
127
128 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
129
130 if (type == NL80211_IFTYPE_MONITOR) {
131 err = ieee80211_set_mon_options(sdata, params);
132 if (err) {
133 ieee80211_if_remove(sdata);
134 return NULL;
135 }
136 }
137
138 return wdev;
139 }
140
141 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
142 {
143 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
144
145 return 0;
146 }
147
148 static int ieee80211_change_iface(struct wiphy *wiphy,
149 struct net_device *dev,
150 enum nl80211_iftype type,
151 struct vif_params *params)
152 {
153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
154 int ret;
155
156 ret = ieee80211_if_change_type(sdata, type);
157 if (ret)
158 return ret;
159
160 if (type == NL80211_IFTYPE_AP_VLAN &&
161 params && params->use_4addr == 0) {
162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
163 ieee80211_check_fast_rx_iface(sdata);
164 } else if (type == NL80211_IFTYPE_STATION &&
165 params && params->use_4addr >= 0) {
166 sdata->u.mgd.use_4addr = params->use_4addr;
167 }
168
169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
170 ret = ieee80211_set_mon_options(sdata, params);
171 if (ret)
172 return ret;
173 }
174
175 return 0;
176 }
177
178 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
179 struct wireless_dev *wdev)
180 {
181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
182 int ret;
183
184 mutex_lock(&sdata->local->chanctx_mtx);
185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
186 mutex_unlock(&sdata->local->chanctx_mtx);
187 if (ret < 0)
188 return ret;
189
190 return ieee80211_do_open(wdev, true);
191 }
192
193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
194 struct wireless_dev *wdev)
195 {
196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
197 }
198
199 static int ieee80211_start_nan(struct wiphy *wiphy,
200 struct wireless_dev *wdev,
201 struct cfg80211_nan_conf *conf)
202 {
203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
204 int ret;
205
206 mutex_lock(&sdata->local->chanctx_mtx);
207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
208 mutex_unlock(&sdata->local->chanctx_mtx);
209 if (ret < 0)
210 return ret;
211
212 ret = ieee80211_do_open(wdev, true);
213 if (ret)
214 return ret;
215
216 ret = drv_start_nan(sdata->local, sdata, conf);
217 if (ret)
218 ieee80211_sdata_stop(sdata);
219
220 sdata->u.nan.conf = *conf;
221
222 return ret;
223 }
224
225 static void ieee80211_stop_nan(struct wiphy *wiphy,
226 struct wireless_dev *wdev)
227 {
228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
229
230 drv_stop_nan(sdata->local, sdata);
231 ieee80211_sdata_stop(sdata);
232 }
233
234 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
235 struct wireless_dev *wdev,
236 struct cfg80211_nan_conf *conf,
237 u32 changes)
238 {
239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
240 struct cfg80211_nan_conf new_conf;
241 int ret = 0;
242
243 if (sdata->vif.type != NL80211_IFTYPE_NAN)
244 return -EOPNOTSUPP;
245
246 if (!ieee80211_sdata_running(sdata))
247 return -ENETDOWN;
248
249 new_conf = sdata->u.nan.conf;
250
251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
252 new_conf.master_pref = conf->master_pref;
253
254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
255 new_conf.bands = conf->bands;
256
257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
258 if (!ret)
259 sdata->u.nan.conf = new_conf;
260
261 return ret;
262 }
263
264 static int ieee80211_add_nan_func(struct wiphy *wiphy,
265 struct wireless_dev *wdev,
266 struct cfg80211_nan_func *nan_func)
267 {
268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
269 int ret;
270
271 if (sdata->vif.type != NL80211_IFTYPE_NAN)
272 return -EOPNOTSUPP;
273
274 if (!ieee80211_sdata_running(sdata))
275 return -ENETDOWN;
276
277 spin_lock_bh(&sdata->u.nan.func_lock);
278
279 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
281 GFP_ATOMIC);
282 spin_unlock_bh(&sdata->u.nan.func_lock);
283
284 if (ret < 0)
285 return ret;
286
287 nan_func->instance_id = ret;
288
289 WARN_ON(nan_func->instance_id == 0);
290
291 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
292 if (ret) {
293 spin_lock_bh(&sdata->u.nan.func_lock);
294 idr_remove(&sdata->u.nan.function_inst_ids,
295 nan_func->instance_id);
296 spin_unlock_bh(&sdata->u.nan.func_lock);
297 }
298
299 return ret;
300 }
301
302 static struct cfg80211_nan_func *
303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
304 u64 cookie)
305 {
306 struct cfg80211_nan_func *func;
307 int id;
308
309 lockdep_assert_held(&sdata->u.nan.func_lock);
310
311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
312 if (func->cookie == cookie)
313 return func;
314 }
315
316 return NULL;
317 }
318
319 static void ieee80211_del_nan_func(struct wiphy *wiphy,
320 struct wireless_dev *wdev, u64 cookie)
321 {
322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
323 struct cfg80211_nan_func *func;
324 u8 instance_id = 0;
325
326 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
327 !ieee80211_sdata_running(sdata))
328 return;
329
330 spin_lock_bh(&sdata->u.nan.func_lock);
331
332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
333 if (func)
334 instance_id = func->instance_id;
335
336 spin_unlock_bh(&sdata->u.nan.func_lock);
337
338 if (instance_id)
339 drv_del_nan_func(sdata->local, sdata, instance_id);
340 }
341
342 static int ieee80211_set_noack_map(struct wiphy *wiphy,
343 struct net_device *dev,
344 u16 noack_map)
345 {
346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
347
348 sdata->noack_map = noack_map;
349
350 ieee80211_check_fast_xmit_iface(sdata);
351
352 return 0;
353 }
354
355 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
356 u8 key_idx, bool pairwise, const u8 *mac_addr,
357 struct key_params *params)
358 {
359 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
360 struct ieee80211_local *local = sdata->local;
361 struct sta_info *sta = NULL;
362 const struct ieee80211_cipher_scheme *cs = NULL;
363 struct ieee80211_key *key;
364 int err;
365
366 if (!ieee80211_sdata_running(sdata))
367 return -ENETDOWN;
368
369 /* reject WEP and TKIP keys if WEP failed to initialize */
370 switch (params->cipher) {
371 case WLAN_CIPHER_SUITE_WEP40:
372 case WLAN_CIPHER_SUITE_TKIP:
373 case WLAN_CIPHER_SUITE_WEP104:
374 if (IS_ERR(local->wep_tx_tfm))
375 return -EINVAL;
376 break;
377 case WLAN_CIPHER_SUITE_CCMP:
378 case WLAN_CIPHER_SUITE_CCMP_256:
379 case WLAN_CIPHER_SUITE_AES_CMAC:
380 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
381 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
382 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
383 case WLAN_CIPHER_SUITE_GCMP:
384 case WLAN_CIPHER_SUITE_GCMP_256:
385 break;
386 default:
387 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
388 break;
389 }
390
391 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
392 params->key, params->seq_len, params->seq,
393 cs);
394 if (IS_ERR(key))
395 return PTR_ERR(key);
396
397 if (pairwise)
398 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
399
400 mutex_lock(&local->sta_mtx);
401
402 if (mac_addr) {
403 sta = sta_info_get_bss(sdata, mac_addr);
404 /*
405 * The ASSOC test makes sure the driver is ready to
406 * receive the key. When wpa_supplicant has roamed
407 * using FT, it attempts to set the key before
408 * association has completed, this rejects that attempt
409 * so it will set the key again after association.
410 *
411 * TODO: accept the key if we have a station entry and
412 * add it to the device after the station.
413 */
414 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
415 ieee80211_key_free_unused(key);
416 err = -ENOENT;
417 goto out_unlock;
418 }
419 }
420
421 switch (sdata->vif.type) {
422 case NL80211_IFTYPE_STATION:
423 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
424 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
425 break;
426 case NL80211_IFTYPE_AP:
427 case NL80211_IFTYPE_AP_VLAN:
428 /* Keys without a station are used for TX only */
429 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
430 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
431 break;
432 case NL80211_IFTYPE_ADHOC:
433 /* no MFP (yet) */
434 break;
435 case NL80211_IFTYPE_MESH_POINT:
436 #ifdef CONFIG_MAC80211_MESH
437 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
438 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
439 break;
440 #endif
441 case NL80211_IFTYPE_WDS:
442 case NL80211_IFTYPE_MONITOR:
443 case NL80211_IFTYPE_P2P_DEVICE:
444 case NL80211_IFTYPE_NAN:
445 case NL80211_IFTYPE_UNSPECIFIED:
446 case NUM_NL80211_IFTYPES:
447 case NL80211_IFTYPE_P2P_CLIENT:
448 case NL80211_IFTYPE_P2P_GO:
449 case NL80211_IFTYPE_OCB:
450 /* shouldn't happen */
451 WARN_ON_ONCE(1);
452 break;
453 }
454
455 if (sta)
456 sta->cipher_scheme = cs;
457
458 err = ieee80211_key_link(key, sdata, sta);
459
460 out_unlock:
461 mutex_unlock(&local->sta_mtx);
462
463 return err;
464 }
465
466 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
467 u8 key_idx, bool pairwise, const u8 *mac_addr)
468 {
469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
470 struct ieee80211_local *local = sdata->local;
471 struct sta_info *sta;
472 struct ieee80211_key *key = NULL;
473 int ret;
474
475 mutex_lock(&local->sta_mtx);
476 mutex_lock(&local->key_mtx);
477
478 if (mac_addr) {
479 ret = -ENOENT;
480
481 sta = sta_info_get_bss(sdata, mac_addr);
482 if (!sta)
483 goto out_unlock;
484
485 if (pairwise)
486 key = key_mtx_dereference(local, sta->ptk[key_idx]);
487 else
488 key = key_mtx_dereference(local, sta->gtk[key_idx]);
489 } else
490 key = key_mtx_dereference(local, sdata->keys[key_idx]);
491
492 if (!key) {
493 ret = -ENOENT;
494 goto out_unlock;
495 }
496
497 ieee80211_key_free(key, true);
498
499 ret = 0;
500 out_unlock:
501 mutex_unlock(&local->key_mtx);
502 mutex_unlock(&local->sta_mtx);
503
504 return ret;
505 }
506
507 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
508 u8 key_idx, bool pairwise, const u8 *mac_addr,
509 void *cookie,
510 void (*callback)(void *cookie,
511 struct key_params *params))
512 {
513 struct ieee80211_sub_if_data *sdata;
514 struct sta_info *sta = NULL;
515 u8 seq[6] = {0};
516 struct key_params params;
517 struct ieee80211_key *key = NULL;
518 u64 pn64;
519 u32 iv32;
520 u16 iv16;
521 int err = -ENOENT;
522 struct ieee80211_key_seq kseq = {};
523
524 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
525
526 rcu_read_lock();
527
528 if (mac_addr) {
529 sta = sta_info_get_bss(sdata, mac_addr);
530 if (!sta)
531 goto out;
532
533 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
534 key = rcu_dereference(sta->ptk[key_idx]);
535 else if (!pairwise &&
536 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
537 key = rcu_dereference(sta->gtk[key_idx]);
538 } else
539 key = rcu_dereference(sdata->keys[key_idx]);
540
541 if (!key)
542 goto out;
543
544 memset(&params, 0, sizeof(params));
545
546 params.cipher = key->conf.cipher;
547
548 switch (key->conf.cipher) {
549 case WLAN_CIPHER_SUITE_TKIP:
550 pn64 = atomic64_read(&key->conf.tx_pn);
551 iv32 = TKIP_PN_TO_IV32(pn64);
552 iv16 = TKIP_PN_TO_IV16(pn64);
553
554 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
555 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
556 drv_get_key_seq(sdata->local, key, &kseq);
557 iv32 = kseq.tkip.iv32;
558 iv16 = kseq.tkip.iv16;
559 }
560
561 seq[0] = iv16 & 0xff;
562 seq[1] = (iv16 >> 8) & 0xff;
563 seq[2] = iv32 & 0xff;
564 seq[3] = (iv32 >> 8) & 0xff;
565 seq[4] = (iv32 >> 16) & 0xff;
566 seq[5] = (iv32 >> 24) & 0xff;
567 params.seq = seq;
568 params.seq_len = 6;
569 break;
570 case WLAN_CIPHER_SUITE_CCMP:
571 case WLAN_CIPHER_SUITE_CCMP_256:
572 case WLAN_CIPHER_SUITE_AES_CMAC:
573 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
574 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
575 offsetof(typeof(kseq), aes_cmac));
576 /* fall through */
577 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
578 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
579 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
580 offsetof(typeof(kseq), aes_gmac));
581 /* fall through */
582 case WLAN_CIPHER_SUITE_GCMP:
583 case WLAN_CIPHER_SUITE_GCMP_256:
584 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
585 offsetof(typeof(kseq), gcmp));
586
587 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
588 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
589 drv_get_key_seq(sdata->local, key, &kseq);
590 memcpy(seq, kseq.ccmp.pn, 6);
591 } else {
592 pn64 = atomic64_read(&key->conf.tx_pn);
593 seq[0] = pn64;
594 seq[1] = pn64 >> 8;
595 seq[2] = pn64 >> 16;
596 seq[3] = pn64 >> 24;
597 seq[4] = pn64 >> 32;
598 seq[5] = pn64 >> 40;
599 }
600 params.seq = seq;
601 params.seq_len = 6;
602 break;
603 default:
604 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
605 break;
606 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
607 break;
608 drv_get_key_seq(sdata->local, key, &kseq);
609 params.seq = kseq.hw.seq;
610 params.seq_len = kseq.hw.seq_len;
611 break;
612 }
613
614 params.key = key->conf.key;
615 params.key_len = key->conf.keylen;
616
617 callback(cookie, &params);
618 err = 0;
619
620 out:
621 rcu_read_unlock();
622 return err;
623 }
624
625 static int ieee80211_config_default_key(struct wiphy *wiphy,
626 struct net_device *dev,
627 u8 key_idx, bool uni,
628 bool multi)
629 {
630 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
631
632 ieee80211_set_default_key(sdata, key_idx, uni, multi);
633
634 return 0;
635 }
636
637 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
638 struct net_device *dev,
639 u8 key_idx)
640 {
641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
642
643 ieee80211_set_default_mgmt_key(sdata, key_idx);
644
645 return 0;
646 }
647
648 void sta_set_rate_info_tx(struct sta_info *sta,
649 const struct ieee80211_tx_rate *rate,
650 struct rate_info *rinfo)
651 {
652 rinfo->flags = 0;
653 if (rate->flags & IEEE80211_TX_RC_MCS) {
654 rinfo->flags |= RATE_INFO_FLAGS_MCS;
655 rinfo->mcs = rate->idx;
656 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
657 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
658 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
659 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
660 } else {
661 struct ieee80211_supported_band *sband;
662 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
663 u16 brate;
664
665 sband = ieee80211_get_sband(sta->sdata);
666 if (sband) {
667 brate = sband->bitrates[rate->idx].bitrate;
668 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
669 }
670 }
671 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
672 rinfo->bw = RATE_INFO_BW_40;
673 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
674 rinfo->bw = RATE_INFO_BW_80;
675 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
676 rinfo->bw = RATE_INFO_BW_160;
677 else
678 rinfo->bw = RATE_INFO_BW_20;
679 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
680 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
681 }
682
683 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
684 int idx, u8 *mac, struct station_info *sinfo)
685 {
686 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
687 struct ieee80211_local *local = sdata->local;
688 struct sta_info *sta;
689 int ret = -ENOENT;
690
691 mutex_lock(&local->sta_mtx);
692
693 sta = sta_info_get_by_idx(sdata, idx);
694 if (sta) {
695 ret = 0;
696 memcpy(mac, sta->sta.addr, ETH_ALEN);
697 sta_set_sinfo(sta, sinfo);
698 }
699
700 mutex_unlock(&local->sta_mtx);
701
702 return ret;
703 }
704
705 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
706 int idx, struct survey_info *survey)
707 {
708 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
709
710 return drv_get_survey(local, idx, survey);
711 }
712
713 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
714 const u8 *mac, struct station_info *sinfo)
715 {
716 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
717 struct ieee80211_local *local = sdata->local;
718 struct sta_info *sta;
719 int ret = -ENOENT;
720
721 mutex_lock(&local->sta_mtx);
722
723 sta = sta_info_get_bss(sdata, mac);
724 if (sta) {
725 ret = 0;
726 sta_set_sinfo(sta, sinfo);
727 }
728
729 mutex_unlock(&local->sta_mtx);
730
731 return ret;
732 }
733
734 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
735 struct cfg80211_chan_def *chandef)
736 {
737 struct ieee80211_local *local = wiphy_priv(wiphy);
738 struct ieee80211_sub_if_data *sdata;
739 int ret = 0;
740
741 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
742 return 0;
743
744 mutex_lock(&local->mtx);
745 if (local->use_chanctx) {
746 sdata = rtnl_dereference(local->monitor_sdata);
747 if (sdata) {
748 ieee80211_vif_release_channel(sdata);
749 ret = ieee80211_vif_use_channel(sdata, chandef,
750 IEEE80211_CHANCTX_EXCLUSIVE);
751 }
752 } else if (local->open_count == local->monitors) {
753 local->_oper_chandef = *chandef;
754 ieee80211_hw_config(local, 0);
755 }
756
757 if (ret == 0)
758 local->monitor_chandef = *chandef;
759 mutex_unlock(&local->mtx);
760
761 return ret;
762 }
763
764 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
765 const u8 *resp, size_t resp_len,
766 const struct ieee80211_csa_settings *csa)
767 {
768 struct probe_resp *new, *old;
769
770 if (!resp || !resp_len)
771 return 1;
772
773 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
774
775 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
776 if (!new)
777 return -ENOMEM;
778
779 new->len = resp_len;
780 memcpy(new->data, resp, resp_len);
781
782 if (csa)
783 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
784 csa->n_counter_offsets_presp *
785 sizeof(new->csa_counter_offsets[0]));
786
787 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
788 if (old)
789 kfree_rcu(old, rcu_head);
790
791 return 0;
792 }
793
794 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
795 struct cfg80211_beacon_data *params,
796 const struct ieee80211_csa_settings *csa)
797 {
798 struct beacon_data *new, *old;
799 int new_head_len, new_tail_len;
800 int size, err;
801 u32 changed = BSS_CHANGED_BEACON;
802
803 old = sdata_dereference(sdata->u.ap.beacon, sdata);
804
805
806 /* Need to have a beacon head if we don't have one yet */
807 if (!params->head && !old)
808 return -EINVAL;
809
810 /* new or old head? */
811 if (params->head)
812 new_head_len = params->head_len;
813 else
814 new_head_len = old->head_len;
815
816 /* new or old tail? */
817 if (params->tail || !old)
818 /* params->tail_len will be zero for !params->tail */
819 new_tail_len = params->tail_len;
820 else
821 new_tail_len = old->tail_len;
822
823 size = sizeof(*new) + new_head_len + new_tail_len;
824
825 new = kzalloc(size, GFP_KERNEL);
826 if (!new)
827 return -ENOMEM;
828
829 /* start filling the new info now */
830
831 /*
832 * pointers go into the block we allocated,
833 * memory is | beacon_data | head | tail |
834 */
835 new->head = ((u8 *) new) + sizeof(*new);
836 new->tail = new->head + new_head_len;
837 new->head_len = new_head_len;
838 new->tail_len = new_tail_len;
839
840 if (csa) {
841 new->csa_current_counter = csa->count;
842 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
843 csa->n_counter_offsets_beacon *
844 sizeof(new->csa_counter_offsets[0]));
845 }
846
847 /* copy in head */
848 if (params->head)
849 memcpy(new->head, params->head, new_head_len);
850 else
851 memcpy(new->head, old->head, new_head_len);
852
853 /* copy in optional tail */
854 if (params->tail)
855 memcpy(new->tail, params->tail, new_tail_len);
856 else
857 if (old)
858 memcpy(new->tail, old->tail, new_tail_len);
859
860 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
861 params->probe_resp_len, csa);
862 if (err < 0)
863 return err;
864 if (err == 0)
865 changed |= BSS_CHANGED_AP_PROBE_RESP;
866
867 rcu_assign_pointer(sdata->u.ap.beacon, new);
868
869 if (old)
870 kfree_rcu(old, rcu_head);
871
872 return changed;
873 }
874
875 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
876 struct cfg80211_ap_settings *params)
877 {
878 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
879 struct ieee80211_local *local = sdata->local;
880 struct beacon_data *old;
881 struct ieee80211_sub_if_data *vlan;
882 u32 changed = BSS_CHANGED_BEACON_INT |
883 BSS_CHANGED_BEACON_ENABLED |
884 BSS_CHANGED_BEACON |
885 BSS_CHANGED_SSID |
886 BSS_CHANGED_P2P_PS |
887 BSS_CHANGED_TXPOWER;
888 int err;
889
890 old = sdata_dereference(sdata->u.ap.beacon, sdata);
891 if (old)
892 return -EALREADY;
893
894 switch (params->smps_mode) {
895 case NL80211_SMPS_OFF:
896 sdata->smps_mode = IEEE80211_SMPS_OFF;
897 break;
898 case NL80211_SMPS_STATIC:
899 sdata->smps_mode = IEEE80211_SMPS_STATIC;
900 break;
901 case NL80211_SMPS_DYNAMIC:
902 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
903 break;
904 default:
905 return -EINVAL;
906 }
907 sdata->u.ap.req_smps = sdata->smps_mode;
908
909 sdata->needed_rx_chains = sdata->local->rx_chains;
910
911 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
912
913 mutex_lock(&local->mtx);
914 err = ieee80211_vif_use_channel(sdata, &params->chandef,
915 IEEE80211_CHANCTX_SHARED);
916 if (!err)
917 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
918 mutex_unlock(&local->mtx);
919 if (err)
920 return err;
921
922 /*
923 * Apply control port protocol, this allows us to
924 * not encrypt dynamic WEP control frames.
925 */
926 sdata->control_port_protocol = params->crypto.control_port_ethertype;
927 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
928 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
929 &params->crypto,
930 sdata->vif.type);
931
932 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
933 vlan->control_port_protocol =
934 params->crypto.control_port_ethertype;
935 vlan->control_port_no_encrypt =
936 params->crypto.control_port_no_encrypt;
937 vlan->encrypt_headroom =
938 ieee80211_cs_headroom(sdata->local,
939 &params->crypto,
940 vlan->vif.type);
941 }
942
943 sdata->vif.bss_conf.dtim_period = params->dtim_period;
944 sdata->vif.bss_conf.enable_beacon = true;
945 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
946
947 sdata->vif.bss_conf.ssid_len = params->ssid_len;
948 if (params->ssid_len)
949 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
950 params->ssid_len);
951 sdata->vif.bss_conf.hidden_ssid =
952 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
953
954 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
955 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
956 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
957 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
958 if (params->p2p_opp_ps)
959 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
960 IEEE80211_P2P_OPPPS_ENABLE_BIT;
961
962 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
963 if (err < 0) {
964 ieee80211_vif_release_channel(sdata);
965 return err;
966 }
967 changed |= err;
968
969 err = drv_start_ap(sdata->local, sdata);
970 if (err) {
971 old = sdata_dereference(sdata->u.ap.beacon, sdata);
972
973 if (old)
974 kfree_rcu(old, rcu_head);
975 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
976 ieee80211_vif_release_channel(sdata);
977 return err;
978 }
979
980 ieee80211_recalc_dtim(local, sdata);
981 ieee80211_bss_info_change_notify(sdata, changed);
982
983 netif_carrier_on(dev);
984 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
985 netif_carrier_on(vlan->dev);
986
987 return 0;
988 }
989
990 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
991 struct cfg80211_beacon_data *params)
992 {
993 struct ieee80211_sub_if_data *sdata;
994 struct beacon_data *old;
995 int err;
996
997 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
998 sdata_assert_lock(sdata);
999
1000 /* don't allow changing the beacon while CSA is in place - offset
1001 * of channel switch counter may change
1002 */
1003 if (sdata->vif.csa_active)
1004 return -EBUSY;
1005
1006 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1007 if (!old)
1008 return -ENOENT;
1009
1010 err = ieee80211_assign_beacon(sdata, params, NULL);
1011 if (err < 0)
1012 return err;
1013 ieee80211_bss_info_change_notify(sdata, err);
1014 return 0;
1015 }
1016
1017 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1018 {
1019 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1020 struct ieee80211_sub_if_data *vlan;
1021 struct ieee80211_local *local = sdata->local;
1022 struct beacon_data *old_beacon;
1023 struct probe_resp *old_probe_resp;
1024 struct cfg80211_chan_def chandef;
1025
1026 sdata_assert_lock(sdata);
1027
1028 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1029 if (!old_beacon)
1030 return -ENOENT;
1031 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1032
1033 /* abort any running channel switch */
1034 mutex_lock(&local->mtx);
1035 sdata->vif.csa_active = false;
1036 if (sdata->csa_block_tx) {
1037 ieee80211_wake_vif_queues(local, sdata,
1038 IEEE80211_QUEUE_STOP_REASON_CSA);
1039 sdata->csa_block_tx = false;
1040 }
1041
1042 mutex_unlock(&local->mtx);
1043
1044 kfree(sdata->u.ap.next_beacon);
1045 sdata->u.ap.next_beacon = NULL;
1046
1047 /* turn off carrier for this interface and dependent VLANs */
1048 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1049 netif_carrier_off(vlan->dev);
1050 netif_carrier_off(dev);
1051
1052 /* remove beacon and probe response */
1053 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1054 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1055 kfree_rcu(old_beacon, rcu_head);
1056 if (old_probe_resp)
1057 kfree_rcu(old_probe_resp, rcu_head);
1058 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1059
1060 __sta_info_flush(sdata, true);
1061 ieee80211_free_keys(sdata, true);
1062
1063 sdata->vif.bss_conf.enable_beacon = false;
1064 sdata->vif.bss_conf.ssid_len = 0;
1065 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1066 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1067
1068 if (sdata->wdev.cac_started) {
1069 chandef = sdata->vif.bss_conf.chandef;
1070 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1071 cfg80211_cac_event(sdata->dev, &chandef,
1072 NL80211_RADAR_CAC_ABORTED,
1073 GFP_KERNEL);
1074 }
1075
1076 drv_stop_ap(sdata->local, sdata);
1077
1078 /* free all potentially still buffered bcast frames */
1079 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1080 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1081
1082 mutex_lock(&local->mtx);
1083 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1084 ieee80211_vif_release_channel(sdata);
1085 mutex_unlock(&local->mtx);
1086
1087 return 0;
1088 }
1089
1090 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1091 struct iapp_layer2_update {
1092 u8 da[ETH_ALEN]; /* broadcast */
1093 u8 sa[ETH_ALEN]; /* STA addr */
1094 __be16 len; /* 6 */
1095 u8 dsap; /* 0 */
1096 u8 ssap; /* 0 */
1097 u8 control;
1098 u8 xid_info[3];
1099 } __packed;
1100
1101 static void ieee80211_send_layer2_update(struct sta_info *sta)
1102 {
1103 struct iapp_layer2_update *msg;
1104 struct sk_buff *skb;
1105
1106 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1107 * bridge devices */
1108
1109 skb = dev_alloc_skb(sizeof(*msg));
1110 if (!skb)
1111 return;
1112 msg = skb_put(skb, sizeof(*msg));
1113
1114 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1115 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1116
1117 eth_broadcast_addr(msg->da);
1118 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1119 msg->len = htons(6);
1120 msg->dsap = 0;
1121 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1122 msg->control = 0xaf; /* XID response lsb.1111F101.
1123 * F=0 (no poll command; unsolicited frame) */
1124 msg->xid_info[0] = 0x81; /* XID format identifier */
1125 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1126 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1127
1128 skb->dev = sta->sdata->dev;
1129 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1130 memset(skb->cb, 0, sizeof(skb->cb));
1131 netif_rx_ni(skb);
1132 }
1133
1134 static int sta_apply_auth_flags(struct ieee80211_local *local,
1135 struct sta_info *sta,
1136 u32 mask, u32 set)
1137 {
1138 int ret;
1139
1140 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1141 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1142 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1143 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1144 if (ret)
1145 return ret;
1146 }
1147
1148 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1149 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1150 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1151 /*
1152 * When peer becomes associated, init rate control as
1153 * well. Some drivers require rate control initialized
1154 * before drv_sta_state() is called.
1155 */
1156 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1157 rate_control_rate_init(sta);
1158
1159 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1160 if (ret)
1161 return ret;
1162 }
1163
1164 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1165 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1166 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1167 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1168 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1169 else
1170 ret = 0;
1171 if (ret)
1172 return ret;
1173 }
1174
1175 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1176 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1177 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1178 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1179 if (ret)
1180 return ret;
1181 }
1182
1183 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1184 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1185 test_sta_flag(sta, WLAN_STA_AUTH)) {
1186 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1187 if (ret)
1188 return ret;
1189 }
1190
1191 return 0;
1192 }
1193
1194 static void sta_apply_mesh_params(struct ieee80211_local *local,
1195 struct sta_info *sta,
1196 struct station_parameters *params)
1197 {
1198 #ifdef CONFIG_MAC80211_MESH
1199 struct ieee80211_sub_if_data *sdata = sta->sdata;
1200 u32 changed = 0;
1201
1202 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1203 switch (params->plink_state) {
1204 case NL80211_PLINK_ESTAB:
1205 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1206 changed = mesh_plink_inc_estab_count(sdata);
1207 sta->mesh->plink_state = params->plink_state;
1208 sta->mesh->aid = params->peer_aid;
1209
1210 ieee80211_mps_sta_status_update(sta);
1211 changed |= ieee80211_mps_set_sta_local_pm(sta,
1212 sdata->u.mesh.mshcfg.power_mode);
1213 break;
1214 case NL80211_PLINK_LISTEN:
1215 case NL80211_PLINK_BLOCKED:
1216 case NL80211_PLINK_OPN_SNT:
1217 case NL80211_PLINK_OPN_RCVD:
1218 case NL80211_PLINK_CNF_RCVD:
1219 case NL80211_PLINK_HOLDING:
1220 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1221 changed = mesh_plink_dec_estab_count(sdata);
1222 sta->mesh->plink_state = params->plink_state;
1223
1224 ieee80211_mps_sta_status_update(sta);
1225 changed |= ieee80211_mps_set_sta_local_pm(sta,
1226 NL80211_MESH_POWER_UNKNOWN);
1227 break;
1228 default:
1229 /* nothing */
1230 break;
1231 }
1232 }
1233
1234 switch (params->plink_action) {
1235 case NL80211_PLINK_ACTION_NO_ACTION:
1236 /* nothing */
1237 break;
1238 case NL80211_PLINK_ACTION_OPEN:
1239 changed |= mesh_plink_open(sta);
1240 break;
1241 case NL80211_PLINK_ACTION_BLOCK:
1242 changed |= mesh_plink_block(sta);
1243 break;
1244 }
1245
1246 if (params->local_pm)
1247 changed |= ieee80211_mps_set_sta_local_pm(sta,
1248 params->local_pm);
1249
1250 ieee80211_mbss_info_change_notify(sdata, changed);
1251 #endif
1252 }
1253
1254 static int sta_apply_parameters(struct ieee80211_local *local,
1255 struct sta_info *sta,
1256 struct station_parameters *params)
1257 {
1258 int ret = 0;
1259 struct ieee80211_supported_band *sband;
1260 struct ieee80211_sub_if_data *sdata = sta->sdata;
1261 u32 mask, set;
1262
1263 sband = ieee80211_get_sband(sdata);
1264 if (!sband)
1265 return -EINVAL;
1266
1267 mask = params->sta_flags_mask;
1268 set = params->sta_flags_set;
1269
1270 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1271 /*
1272 * In mesh mode, ASSOCIATED isn't part of the nl80211
1273 * API but must follow AUTHENTICATED for driver state.
1274 */
1275 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1276 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1277 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1278 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1279 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1280 /*
1281 * TDLS -- everything follows authorized, but
1282 * only becoming authorized is possible, not
1283 * going back
1284 */
1285 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1286 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1287 BIT(NL80211_STA_FLAG_ASSOCIATED);
1288 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1289 BIT(NL80211_STA_FLAG_ASSOCIATED);
1290 }
1291 }
1292
1293 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1294 local->hw.queues >= IEEE80211_NUM_ACS)
1295 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1296
1297 /* auth flags will be set later for TDLS,
1298 * and for unassociated stations that move to assocaited */
1299 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1300 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1301 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1302 ret = sta_apply_auth_flags(local, sta, mask, set);
1303 if (ret)
1304 return ret;
1305 }
1306
1307 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1308 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1309 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1310 else
1311 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1312 }
1313
1314 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1315 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1316 if (set & BIT(NL80211_STA_FLAG_MFP))
1317 set_sta_flag(sta, WLAN_STA_MFP);
1318 else
1319 clear_sta_flag(sta, WLAN_STA_MFP);
1320 }
1321
1322 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1323 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1324 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1325 else
1326 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1327 }
1328
1329 /* mark TDLS channel switch support, if the AP allows it */
1330 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1331 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1332 params->ext_capab_len >= 4 &&
1333 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1334 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1335
1336 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1337 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1338 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1339 params->ext_capab_len >= 8 &&
1340 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1341 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1342
1343 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1344 sta->sta.uapsd_queues = params->uapsd_queues;
1345 sta->sta.max_sp = params->max_sp;
1346 }
1347
1348 /* The sender might not have sent the last bit, consider it to be 0 */
1349 if (params->ext_capab_len >= 8) {
1350 u8 val = (params->ext_capab[7] &
1351 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1352
1353 /* we did get all the bits, take the MSB as well */
1354 if (params->ext_capab_len >= 9) {
1355 u8 val_msb = params->ext_capab[8] &
1356 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1357 val_msb <<= 1;
1358 val |= val_msb;
1359 }
1360
1361 switch (val) {
1362 case 1:
1363 sta->sta.max_amsdu_subframes = 32;
1364 break;
1365 case 2:
1366 sta->sta.max_amsdu_subframes = 16;
1367 break;
1368 case 3:
1369 sta->sta.max_amsdu_subframes = 8;
1370 break;
1371 default:
1372 sta->sta.max_amsdu_subframes = 0;
1373 }
1374 }
1375
1376 /*
1377 * cfg80211 validates this (1-2007) and allows setting the AID
1378 * only when creating a new station entry
1379 */
1380 if (params->aid)
1381 sta->sta.aid = params->aid;
1382
1383 /*
1384 * Some of the following updates would be racy if called on an
1385 * existing station, via ieee80211_change_station(). However,
1386 * all such changes are rejected by cfg80211 except for updates
1387 * changing the supported rates on an existing but not yet used
1388 * TDLS peer.
1389 */
1390
1391 if (params->listen_interval >= 0)
1392 sta->listen_interval = params->listen_interval;
1393
1394 if (params->supported_rates) {
1395 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1396 sband, params->supported_rates,
1397 params->supported_rates_len,
1398 &sta->sta.supp_rates[sband->band]);
1399 }
1400
1401 if (params->ht_capa)
1402 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1403 params->ht_capa, sta);
1404
1405 /* VHT can override some HT caps such as the A-MSDU max length */
1406 if (params->vht_capa)
1407 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1408 params->vht_capa, sta);
1409
1410 if (params->opmode_notif_used) {
1411 /* returned value is only needed for rc update, but the
1412 * rc isn't initialized here yet, so ignore it
1413 */
1414 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1415 sband->band);
1416 }
1417
1418 if (params->support_p2p_ps >= 0)
1419 sta->sta.support_p2p_ps = params->support_p2p_ps;
1420
1421 if (ieee80211_vif_is_mesh(&sdata->vif))
1422 sta_apply_mesh_params(local, sta, params);
1423
1424 /* set the STA state after all sta info from usermode has been set */
1425 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1426 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1427 ret = sta_apply_auth_flags(local, sta, mask, set);
1428 if (ret)
1429 return ret;
1430 }
1431
1432 return 0;
1433 }
1434
1435 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1436 const u8 *mac,
1437 struct station_parameters *params)
1438 {
1439 struct ieee80211_local *local = wiphy_priv(wiphy);
1440 struct sta_info *sta;
1441 struct ieee80211_sub_if_data *sdata;
1442 int err;
1443 int layer2_update;
1444
1445 if (params->vlan) {
1446 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1447
1448 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1449 sdata->vif.type != NL80211_IFTYPE_AP)
1450 return -EINVAL;
1451 } else
1452 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1453
1454 if (ether_addr_equal(mac, sdata->vif.addr))
1455 return -EINVAL;
1456
1457 if (is_multicast_ether_addr(mac))
1458 return -EINVAL;
1459
1460 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1461 if (!sta)
1462 return -ENOMEM;
1463
1464 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1465 sta->sta.tdls = true;
1466
1467 err = sta_apply_parameters(local, sta, params);
1468 if (err) {
1469 sta_info_free(local, sta);
1470 return err;
1471 }
1472
1473 /*
1474 * for TDLS and for unassociated station, rate control should be
1475 * initialized only when rates are known and station is marked
1476 * authorized/associated
1477 */
1478 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1479 test_sta_flag(sta, WLAN_STA_ASSOC))
1480 rate_control_rate_init(sta);
1481
1482 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1483 sdata->vif.type == NL80211_IFTYPE_AP;
1484
1485 err = sta_info_insert_rcu(sta);
1486 if (err) {
1487 rcu_read_unlock();
1488 return err;
1489 }
1490
1491 if (layer2_update)
1492 ieee80211_send_layer2_update(sta);
1493
1494 rcu_read_unlock();
1495
1496 return 0;
1497 }
1498
1499 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1500 struct station_del_parameters *params)
1501 {
1502 struct ieee80211_sub_if_data *sdata;
1503
1504 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1505
1506 if (params->mac)
1507 return sta_info_destroy_addr_bss(sdata, params->mac);
1508
1509 sta_info_flush(sdata);
1510 return 0;
1511 }
1512
1513 static int ieee80211_change_station(struct wiphy *wiphy,
1514 struct net_device *dev, const u8 *mac,
1515 struct station_parameters *params)
1516 {
1517 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1518 struct ieee80211_local *local = wiphy_priv(wiphy);
1519 struct sta_info *sta;
1520 struct ieee80211_sub_if_data *vlansdata;
1521 enum cfg80211_station_type statype;
1522 int err;
1523
1524 mutex_lock(&local->sta_mtx);
1525
1526 sta = sta_info_get_bss(sdata, mac);
1527 if (!sta) {
1528 err = -ENOENT;
1529 goto out_err;
1530 }
1531
1532 switch (sdata->vif.type) {
1533 case NL80211_IFTYPE_MESH_POINT:
1534 if (sdata->u.mesh.user_mpm)
1535 statype = CFG80211_STA_MESH_PEER_USER;
1536 else
1537 statype = CFG80211_STA_MESH_PEER_KERNEL;
1538 break;
1539 case NL80211_IFTYPE_ADHOC:
1540 statype = CFG80211_STA_IBSS;
1541 break;
1542 case NL80211_IFTYPE_STATION:
1543 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1544 statype = CFG80211_STA_AP_STA;
1545 break;
1546 }
1547 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1548 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1549 else
1550 statype = CFG80211_STA_TDLS_PEER_SETUP;
1551 break;
1552 case NL80211_IFTYPE_AP:
1553 case NL80211_IFTYPE_AP_VLAN:
1554 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1555 statype = CFG80211_STA_AP_CLIENT;
1556 else
1557 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1558 break;
1559 default:
1560 err = -EOPNOTSUPP;
1561 goto out_err;
1562 }
1563
1564 err = cfg80211_check_station_change(wiphy, params, statype);
1565 if (err)
1566 goto out_err;
1567
1568 if (params->vlan && params->vlan != sta->sdata->dev) {
1569 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1570
1571 if (params->vlan->ieee80211_ptr->use_4addr) {
1572 if (vlansdata->u.vlan.sta) {
1573 err = -EBUSY;
1574 goto out_err;
1575 }
1576
1577 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1578 __ieee80211_check_fast_rx_iface(vlansdata);
1579 }
1580
1581 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1582 sta->sdata->u.vlan.sta)
1583 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1584
1585 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1586 ieee80211_vif_dec_num_mcast(sta->sdata);
1587
1588 sta->sdata = vlansdata;
1589 ieee80211_check_fast_xmit(sta);
1590
1591 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1592 ieee80211_vif_inc_num_mcast(sta->sdata);
1593
1594 ieee80211_send_layer2_update(sta);
1595 }
1596
1597 err = sta_apply_parameters(local, sta, params);
1598 if (err)
1599 goto out_err;
1600
1601 mutex_unlock(&local->sta_mtx);
1602
1603 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1604 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1605 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1606 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1607 sta_info_tx_streams(sta) != 1) {
1608 ht_dbg(sta->sdata,
1609 "%pM just authorized and MIMO capable - update SMPS\n",
1610 sta->sta.addr);
1611 ieee80211_send_smps_action(sta->sdata,
1612 sta->sdata->bss->req_smps,
1613 sta->sta.addr,
1614 sta->sdata->vif.bss_conf.bssid);
1615 }
1616
1617 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1618 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1619 ieee80211_recalc_ps(local);
1620 ieee80211_recalc_ps_vif(sdata);
1621 }
1622
1623 return 0;
1624 out_err:
1625 mutex_unlock(&local->sta_mtx);
1626 return err;
1627 }
1628
1629 #ifdef CONFIG_MAC80211_MESH
1630 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1631 const u8 *dst, const u8 *next_hop)
1632 {
1633 struct ieee80211_sub_if_data *sdata;
1634 struct mesh_path *mpath;
1635 struct sta_info *sta;
1636
1637 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1638
1639 rcu_read_lock();
1640 sta = sta_info_get(sdata, next_hop);
1641 if (!sta) {
1642 rcu_read_unlock();
1643 return -ENOENT;
1644 }
1645
1646 mpath = mesh_path_add(sdata, dst);
1647 if (IS_ERR(mpath)) {
1648 rcu_read_unlock();
1649 return PTR_ERR(mpath);
1650 }
1651
1652 mesh_path_fix_nexthop(mpath, sta);
1653
1654 rcu_read_unlock();
1655 return 0;
1656 }
1657
1658 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1659 const u8 *dst)
1660 {
1661 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1662
1663 if (dst)
1664 return mesh_path_del(sdata, dst);
1665
1666 mesh_path_flush_by_iface(sdata);
1667 return 0;
1668 }
1669
1670 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1671 const u8 *dst, const u8 *next_hop)
1672 {
1673 struct ieee80211_sub_if_data *sdata;
1674 struct mesh_path *mpath;
1675 struct sta_info *sta;
1676
1677 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1678
1679 rcu_read_lock();
1680
1681 sta = sta_info_get(sdata, next_hop);
1682 if (!sta) {
1683 rcu_read_unlock();
1684 return -ENOENT;
1685 }
1686
1687 mpath = mesh_path_lookup(sdata, dst);
1688 if (!mpath) {
1689 rcu_read_unlock();
1690 return -ENOENT;
1691 }
1692
1693 mesh_path_fix_nexthop(mpath, sta);
1694
1695 rcu_read_unlock();
1696 return 0;
1697 }
1698
1699 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1700 struct mpath_info *pinfo)
1701 {
1702 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1703
1704 if (next_hop_sta)
1705 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1706 else
1707 eth_zero_addr(next_hop);
1708
1709 memset(pinfo, 0, sizeof(*pinfo));
1710
1711 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1712
1713 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1714 MPATH_INFO_SN |
1715 MPATH_INFO_METRIC |
1716 MPATH_INFO_EXPTIME |
1717 MPATH_INFO_DISCOVERY_TIMEOUT |
1718 MPATH_INFO_DISCOVERY_RETRIES |
1719 MPATH_INFO_FLAGS;
1720
1721 pinfo->frame_qlen = mpath->frame_queue.qlen;
1722 pinfo->sn = mpath->sn;
1723 pinfo->metric = mpath->metric;
1724 if (time_before(jiffies, mpath->exp_time))
1725 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1726 pinfo->discovery_timeout =
1727 jiffies_to_msecs(mpath->discovery_timeout);
1728 pinfo->discovery_retries = mpath->discovery_retries;
1729 if (mpath->flags & MESH_PATH_ACTIVE)
1730 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1731 if (mpath->flags & MESH_PATH_RESOLVING)
1732 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1733 if (mpath->flags & MESH_PATH_SN_VALID)
1734 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1735 if (mpath->flags & MESH_PATH_FIXED)
1736 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1737 if (mpath->flags & MESH_PATH_RESOLVED)
1738 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1739 }
1740
1741 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1742 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1743
1744 {
1745 struct ieee80211_sub_if_data *sdata;
1746 struct mesh_path *mpath;
1747
1748 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1749
1750 rcu_read_lock();
1751 mpath = mesh_path_lookup(sdata, dst);
1752 if (!mpath) {
1753 rcu_read_unlock();
1754 return -ENOENT;
1755 }
1756 memcpy(dst, mpath->dst, ETH_ALEN);
1757 mpath_set_pinfo(mpath, next_hop, pinfo);
1758 rcu_read_unlock();
1759 return 0;
1760 }
1761
1762 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1763 int idx, u8 *dst, u8 *next_hop,
1764 struct mpath_info *pinfo)
1765 {
1766 struct ieee80211_sub_if_data *sdata;
1767 struct mesh_path *mpath;
1768
1769 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1770
1771 rcu_read_lock();
1772 mpath = mesh_path_lookup_by_idx(sdata, idx);
1773 if (!mpath) {
1774 rcu_read_unlock();
1775 return -ENOENT;
1776 }
1777 memcpy(dst, mpath->dst, ETH_ALEN);
1778 mpath_set_pinfo(mpath, next_hop, pinfo);
1779 rcu_read_unlock();
1780 return 0;
1781 }
1782
1783 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1784 struct mpath_info *pinfo)
1785 {
1786 memset(pinfo, 0, sizeof(*pinfo));
1787 memcpy(mpp, mpath->mpp, ETH_ALEN);
1788
1789 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1790 }
1791
1792 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1793 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1794
1795 {
1796 struct ieee80211_sub_if_data *sdata;
1797 struct mesh_path *mpath;
1798
1799 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1800
1801 rcu_read_lock();
1802 mpath = mpp_path_lookup(sdata, dst);
1803 if (!mpath) {
1804 rcu_read_unlock();
1805 return -ENOENT;
1806 }
1807 memcpy(dst, mpath->dst, ETH_ALEN);
1808 mpp_set_pinfo(mpath, mpp, pinfo);
1809 rcu_read_unlock();
1810 return 0;
1811 }
1812
1813 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1814 int idx, u8 *dst, u8 *mpp,
1815 struct mpath_info *pinfo)
1816 {
1817 struct ieee80211_sub_if_data *sdata;
1818 struct mesh_path *mpath;
1819
1820 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1821
1822 rcu_read_lock();
1823 mpath = mpp_path_lookup_by_idx(sdata, idx);
1824 if (!mpath) {
1825 rcu_read_unlock();
1826 return -ENOENT;
1827 }
1828 memcpy(dst, mpath->dst, ETH_ALEN);
1829 mpp_set_pinfo(mpath, mpp, pinfo);
1830 rcu_read_unlock();
1831 return 0;
1832 }
1833
1834 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1835 struct net_device *dev,
1836 struct mesh_config *conf)
1837 {
1838 struct ieee80211_sub_if_data *sdata;
1839 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1840
1841 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1842 return 0;
1843 }
1844
1845 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1846 {
1847 return (mask >> (parm-1)) & 0x1;
1848 }
1849
1850 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1851 const struct mesh_setup *setup)
1852 {
1853 u8 *new_ie;
1854 const u8 *old_ie;
1855 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1856 struct ieee80211_sub_if_data, u.mesh);
1857
1858 /* allocate information elements */
1859 new_ie = NULL;
1860 old_ie = ifmsh->ie;
1861
1862 if (setup->ie_len) {
1863 new_ie = kmemdup(setup->ie, setup->ie_len,
1864 GFP_KERNEL);
1865 if (!new_ie)
1866 return -ENOMEM;
1867 }
1868 ifmsh->ie_len = setup->ie_len;
1869 ifmsh->ie = new_ie;
1870 kfree(old_ie);
1871
1872 /* now copy the rest of the setup parameters */
1873 ifmsh->mesh_id_len = setup->mesh_id_len;
1874 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1875 ifmsh->mesh_sp_id = setup->sync_method;
1876 ifmsh->mesh_pp_id = setup->path_sel_proto;
1877 ifmsh->mesh_pm_id = setup->path_metric;
1878 ifmsh->user_mpm = setup->user_mpm;
1879 ifmsh->mesh_auth_id = setup->auth_id;
1880 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1881 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1882 if (setup->is_authenticated)
1883 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1884 if (setup->is_secure)
1885 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1886
1887 /* mcast rate setting in Mesh Node */
1888 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1889 sizeof(setup->mcast_rate));
1890 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1891
1892 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1893 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1894
1895 return 0;
1896 }
1897
1898 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1899 struct net_device *dev, u32 mask,
1900 const struct mesh_config *nconf)
1901 {
1902 struct mesh_config *conf;
1903 struct ieee80211_sub_if_data *sdata;
1904 struct ieee80211_if_mesh *ifmsh;
1905
1906 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1907 ifmsh = &sdata->u.mesh;
1908
1909 /* Set the config options which we are interested in setting */
1910 conf = &(sdata->u.mesh.mshcfg);
1911 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1912 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1913 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1914 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1915 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1916 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1917 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1918 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1919 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1920 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1921 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1922 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1923 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1924 conf->element_ttl = nconf->element_ttl;
1925 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1926 if (ifmsh->user_mpm)
1927 return -EBUSY;
1928 conf->auto_open_plinks = nconf->auto_open_plinks;
1929 }
1930 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1931 conf->dot11MeshNbrOffsetMaxNeighbor =
1932 nconf->dot11MeshNbrOffsetMaxNeighbor;
1933 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1934 conf->dot11MeshHWMPmaxPREQretries =
1935 nconf->dot11MeshHWMPmaxPREQretries;
1936 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1937 conf->path_refresh_time = nconf->path_refresh_time;
1938 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1939 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1940 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1941 conf->dot11MeshHWMPactivePathTimeout =
1942 nconf->dot11MeshHWMPactivePathTimeout;
1943 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1944 conf->dot11MeshHWMPpreqMinInterval =
1945 nconf->dot11MeshHWMPpreqMinInterval;
1946 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1947 conf->dot11MeshHWMPperrMinInterval =
1948 nconf->dot11MeshHWMPperrMinInterval;
1949 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1950 mask))
1951 conf->dot11MeshHWMPnetDiameterTraversalTime =
1952 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1953 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1954 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1955 ieee80211_mesh_root_setup(ifmsh);
1956 }
1957 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1958 /* our current gate announcement implementation rides on root
1959 * announcements, so require this ifmsh to also be a root node
1960 * */
1961 if (nconf->dot11MeshGateAnnouncementProtocol &&
1962 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1963 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1964 ieee80211_mesh_root_setup(ifmsh);
1965 }
1966 conf->dot11MeshGateAnnouncementProtocol =
1967 nconf->dot11MeshGateAnnouncementProtocol;
1968 }
1969 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1970 conf->dot11MeshHWMPRannInterval =
1971 nconf->dot11MeshHWMPRannInterval;
1972 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1973 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1974 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1975 /* our RSSI threshold implementation is supported only for
1976 * devices that report signal in dBm.
1977 */
1978 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
1979 return -ENOTSUPP;
1980 conf->rssi_threshold = nconf->rssi_threshold;
1981 }
1982 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1983 conf->ht_opmode = nconf->ht_opmode;
1984 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1985 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1986 }
1987 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1988 conf->dot11MeshHWMPactivePathToRootTimeout =
1989 nconf->dot11MeshHWMPactivePathToRootTimeout;
1990 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1991 conf->dot11MeshHWMProotInterval =
1992 nconf->dot11MeshHWMProotInterval;
1993 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1994 conf->dot11MeshHWMPconfirmationInterval =
1995 nconf->dot11MeshHWMPconfirmationInterval;
1996 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1997 conf->power_mode = nconf->power_mode;
1998 ieee80211_mps_local_status_update(sdata);
1999 }
2000 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2001 conf->dot11MeshAwakeWindowDuration =
2002 nconf->dot11MeshAwakeWindowDuration;
2003 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2004 conf->plink_timeout = nconf->plink_timeout;
2005 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2006 return 0;
2007 }
2008
2009 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2010 const struct mesh_config *conf,
2011 const struct mesh_setup *setup)
2012 {
2013 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2014 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2015 int err;
2016
2017 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2018 err = copy_mesh_setup(ifmsh, setup);
2019 if (err)
2020 return err;
2021
2022 /* can mesh use other SMPS modes? */
2023 sdata->smps_mode = IEEE80211_SMPS_OFF;
2024 sdata->needed_rx_chains = sdata->local->rx_chains;
2025
2026 mutex_lock(&sdata->local->mtx);
2027 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2028 IEEE80211_CHANCTX_SHARED);
2029 mutex_unlock(&sdata->local->mtx);
2030 if (err)
2031 return err;
2032
2033 return ieee80211_start_mesh(sdata);
2034 }
2035
2036 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2037 {
2038 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2039
2040 ieee80211_stop_mesh(sdata);
2041 mutex_lock(&sdata->local->mtx);
2042 ieee80211_vif_release_channel(sdata);
2043 mutex_unlock(&sdata->local->mtx);
2044
2045 return 0;
2046 }
2047 #endif
2048
2049 static int ieee80211_change_bss(struct wiphy *wiphy,
2050 struct net_device *dev,
2051 struct bss_parameters *params)
2052 {
2053 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2054 struct ieee80211_supported_band *sband;
2055 u32 changed = 0;
2056
2057 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2058 return -ENOENT;
2059
2060 sband = ieee80211_get_sband(sdata);
2061 if (!sband)
2062 return -EINVAL;
2063
2064 if (params->use_cts_prot >= 0) {
2065 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2066 changed |= BSS_CHANGED_ERP_CTS_PROT;
2067 }
2068 if (params->use_short_preamble >= 0) {
2069 sdata->vif.bss_conf.use_short_preamble =
2070 params->use_short_preamble;
2071 changed |= BSS_CHANGED_ERP_PREAMBLE;
2072 }
2073
2074 if (!sdata->vif.bss_conf.use_short_slot &&
2075 sband->band == NL80211_BAND_5GHZ) {
2076 sdata->vif.bss_conf.use_short_slot = true;
2077 changed |= BSS_CHANGED_ERP_SLOT;
2078 }
2079
2080 if (params->use_short_slot_time >= 0) {
2081 sdata->vif.bss_conf.use_short_slot =
2082 params->use_short_slot_time;
2083 changed |= BSS_CHANGED_ERP_SLOT;
2084 }
2085
2086 if (params->basic_rates) {
2087 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2088 wiphy->bands[sband->band],
2089 params->basic_rates,
2090 params->basic_rates_len,
2091 &sdata->vif.bss_conf.basic_rates);
2092 changed |= BSS_CHANGED_BASIC_RATES;
2093 ieee80211_check_rate_mask(sdata);
2094 }
2095
2096 if (params->ap_isolate >= 0) {
2097 if (params->ap_isolate)
2098 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2099 else
2100 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2101 ieee80211_check_fast_rx_iface(sdata);
2102 }
2103
2104 if (params->ht_opmode >= 0) {
2105 sdata->vif.bss_conf.ht_operation_mode =
2106 (u16) params->ht_opmode;
2107 changed |= BSS_CHANGED_HT;
2108 }
2109
2110 if (params->p2p_ctwindow >= 0) {
2111 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2112 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2113 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2114 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2115 changed |= BSS_CHANGED_P2P_PS;
2116 }
2117
2118 if (params->p2p_opp_ps > 0) {
2119 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2120 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2121 changed |= BSS_CHANGED_P2P_PS;
2122 } else if (params->p2p_opp_ps == 0) {
2123 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2124 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2125 changed |= BSS_CHANGED_P2P_PS;
2126 }
2127
2128 ieee80211_bss_info_change_notify(sdata, changed);
2129
2130 return 0;
2131 }
2132
2133 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2134 struct net_device *dev,
2135 struct ieee80211_txq_params *params)
2136 {
2137 struct ieee80211_local *local = wiphy_priv(wiphy);
2138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2139 struct ieee80211_tx_queue_params p;
2140
2141 if (!local->ops->conf_tx)
2142 return -EOPNOTSUPP;
2143
2144 if (local->hw.queues < IEEE80211_NUM_ACS)
2145 return -EOPNOTSUPP;
2146
2147 memset(&p, 0, sizeof(p));
2148 p.aifs = params->aifs;
2149 p.cw_max = params->cwmax;
2150 p.cw_min = params->cwmin;
2151 p.txop = params->txop;
2152
2153 /*
2154 * Setting tx queue params disables u-apsd because it's only
2155 * called in master mode.
2156 */
2157 p.uapsd = false;
2158
2159 sdata->tx_conf[params->ac] = p;
2160 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2161 wiphy_debug(local->hw.wiphy,
2162 "failed to set TX queue parameters for AC %d\n",
2163 params->ac);
2164 return -EINVAL;
2165 }
2166
2167 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2168
2169 return 0;
2170 }
2171
2172 #ifdef CONFIG_PM
2173 static int ieee80211_suspend(struct wiphy *wiphy,
2174 struct cfg80211_wowlan *wowlan)
2175 {
2176 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2177 }
2178
2179 static int ieee80211_resume(struct wiphy *wiphy)
2180 {
2181 return __ieee80211_resume(wiphy_priv(wiphy));
2182 }
2183 #else
2184 #define ieee80211_suspend NULL
2185 #define ieee80211_resume NULL
2186 #endif
2187
2188 static int ieee80211_scan(struct wiphy *wiphy,
2189 struct cfg80211_scan_request *req)
2190 {
2191 struct ieee80211_sub_if_data *sdata;
2192
2193 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2194
2195 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2196 case NL80211_IFTYPE_STATION:
2197 case NL80211_IFTYPE_ADHOC:
2198 case NL80211_IFTYPE_MESH_POINT:
2199 case NL80211_IFTYPE_P2P_CLIENT:
2200 case NL80211_IFTYPE_P2P_DEVICE:
2201 break;
2202 case NL80211_IFTYPE_P2P_GO:
2203 if (sdata->local->ops->hw_scan)
2204 break;
2205 /*
2206 * FIXME: implement NoA while scanning in software,
2207 * for now fall through to allow scanning only when
2208 * beaconing hasn't been configured yet
2209 */
2210 /* fall through */
2211 case NL80211_IFTYPE_AP:
2212 /*
2213 * If the scan has been forced (and the driver supports
2214 * forcing), don't care about being beaconing already.
2215 * This will create problems to the attached stations (e.g. all
2216 * the frames sent while scanning on other channel will be
2217 * lost)
2218 */
2219 if (sdata->u.ap.beacon &&
2220 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2221 !(req->flags & NL80211_SCAN_FLAG_AP)))
2222 return -EOPNOTSUPP;
2223 break;
2224 case NL80211_IFTYPE_NAN:
2225 default:
2226 return -EOPNOTSUPP;
2227 }
2228
2229 return ieee80211_request_scan(sdata, req);
2230 }
2231
2232 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2233 {
2234 ieee80211_scan_cancel(wiphy_priv(wiphy));
2235 }
2236
2237 static int
2238 ieee80211_sched_scan_start(struct wiphy *wiphy,
2239 struct net_device *dev,
2240 struct cfg80211_sched_scan_request *req)
2241 {
2242 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2243
2244 if (!sdata->local->ops->sched_scan_start)
2245 return -EOPNOTSUPP;
2246
2247 return ieee80211_request_sched_scan_start(sdata, req);
2248 }
2249
2250 static int
2251 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2252 u64 reqid)
2253 {
2254 struct ieee80211_local *local = wiphy_priv(wiphy);
2255
2256 if (!local->ops->sched_scan_stop)
2257 return -EOPNOTSUPP;
2258
2259 return ieee80211_request_sched_scan_stop(local);
2260 }
2261
2262 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2263 struct cfg80211_auth_request *req)
2264 {
2265 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2266 }
2267
2268 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2269 struct cfg80211_assoc_request *req)
2270 {
2271 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2272 }
2273
2274 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2275 struct cfg80211_deauth_request *req)
2276 {
2277 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2278 }
2279
2280 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2281 struct cfg80211_disassoc_request *req)
2282 {
2283 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2284 }
2285
2286 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2287 struct cfg80211_ibss_params *params)
2288 {
2289 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2290 }
2291
2292 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2293 {
2294 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2295 }
2296
2297 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2298 struct ocb_setup *setup)
2299 {
2300 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2301 }
2302
2303 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2304 {
2305 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2306 }
2307
2308 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2309 int rate[NUM_NL80211_BANDS])
2310 {
2311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2312
2313 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2314 sizeof(int) * NUM_NL80211_BANDS);
2315
2316 return 0;
2317 }
2318
2319 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2320 {
2321 struct ieee80211_local *local = wiphy_priv(wiphy);
2322 int err;
2323
2324 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2325 ieee80211_check_fast_xmit_all(local);
2326
2327 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2328
2329 if (err) {
2330 ieee80211_check_fast_xmit_all(local);
2331 return err;
2332 }
2333 }
2334
2335 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2336 (changed & WIPHY_PARAM_DYN_ACK)) {
2337 s16 coverage_class;
2338
2339 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2340 wiphy->coverage_class : -1;
2341 err = drv_set_coverage_class(local, coverage_class);
2342
2343 if (err)
2344 return err;
2345 }
2346
2347 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2348 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2349
2350 if (err)
2351 return err;
2352 }
2353
2354 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2355 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2356 return -EINVAL;
2357 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2358 }
2359 if (changed & WIPHY_PARAM_RETRY_LONG) {
2360 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2361 return -EINVAL;
2362 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2363 }
2364 if (changed &
2365 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2366 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2367
2368 return 0;
2369 }
2370
2371 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2372 struct wireless_dev *wdev,
2373 enum nl80211_tx_power_setting type, int mbm)
2374 {
2375 struct ieee80211_local *local = wiphy_priv(wiphy);
2376 struct ieee80211_sub_if_data *sdata;
2377 enum nl80211_tx_power_setting txp_type = type;
2378 bool update_txp_type = false;
2379 bool has_monitor = false;
2380
2381 if (wdev) {
2382 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2383
2384 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2385 sdata = rtnl_dereference(local->monitor_sdata);
2386 if (!sdata)
2387 return -EOPNOTSUPP;
2388 }
2389
2390 switch (type) {
2391 case NL80211_TX_POWER_AUTOMATIC:
2392 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2393 txp_type = NL80211_TX_POWER_LIMITED;
2394 break;
2395 case NL80211_TX_POWER_LIMITED:
2396 case NL80211_TX_POWER_FIXED:
2397 if (mbm < 0 || (mbm % 100))
2398 return -EOPNOTSUPP;
2399 sdata->user_power_level = MBM_TO_DBM(mbm);
2400 break;
2401 }
2402
2403 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2404 update_txp_type = true;
2405 sdata->vif.bss_conf.txpower_type = txp_type;
2406 }
2407
2408 ieee80211_recalc_txpower(sdata, update_txp_type);
2409
2410 return 0;
2411 }
2412
2413 switch (type) {
2414 case NL80211_TX_POWER_AUTOMATIC:
2415 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2416 txp_type = NL80211_TX_POWER_LIMITED;
2417 break;
2418 case NL80211_TX_POWER_LIMITED:
2419 case NL80211_TX_POWER_FIXED:
2420 if (mbm < 0 || (mbm % 100))
2421 return -EOPNOTSUPP;
2422 local->user_power_level = MBM_TO_DBM(mbm);
2423 break;
2424 }
2425
2426 mutex_lock(&local->iflist_mtx);
2427 list_for_each_entry(sdata, &local->interfaces, list) {
2428 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2429 has_monitor = true;
2430 continue;
2431 }
2432 sdata->user_power_level = local->user_power_level;
2433 if (txp_type != sdata->vif.bss_conf.txpower_type)
2434 update_txp_type = true;
2435 sdata->vif.bss_conf.txpower_type = txp_type;
2436 }
2437 list_for_each_entry(sdata, &local->interfaces, list) {
2438 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2439 continue;
2440 ieee80211_recalc_txpower(sdata, update_txp_type);
2441 }
2442 mutex_unlock(&local->iflist_mtx);
2443
2444 if (has_monitor) {
2445 sdata = rtnl_dereference(local->monitor_sdata);
2446 if (sdata) {
2447 sdata->user_power_level = local->user_power_level;
2448 if (txp_type != sdata->vif.bss_conf.txpower_type)
2449 update_txp_type = true;
2450 sdata->vif.bss_conf.txpower_type = txp_type;
2451
2452 ieee80211_recalc_txpower(sdata, update_txp_type);
2453 }
2454 }
2455
2456 return 0;
2457 }
2458
2459 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2460 struct wireless_dev *wdev,
2461 int *dbm)
2462 {
2463 struct ieee80211_local *local = wiphy_priv(wiphy);
2464 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2465
2466 if (local->ops->get_txpower)
2467 return drv_get_txpower(local, sdata, dbm);
2468
2469 if (!local->use_chanctx)
2470 *dbm = local->hw.conf.power_level;
2471 else
2472 *dbm = sdata->vif.bss_conf.txpower;
2473
2474 return 0;
2475 }
2476
2477 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2478 const u8 *addr)
2479 {
2480 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2481
2482 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2483
2484 return 0;
2485 }
2486
2487 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2488 {
2489 struct ieee80211_local *local = wiphy_priv(wiphy);
2490
2491 drv_rfkill_poll(local);
2492 }
2493
2494 #ifdef CONFIG_NL80211_TESTMODE
2495 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2496 struct wireless_dev *wdev,
2497 void *data, int len)
2498 {
2499 struct ieee80211_local *local = wiphy_priv(wiphy);
2500 struct ieee80211_vif *vif = NULL;
2501
2502 if (!local->ops->testmode_cmd)
2503 return -EOPNOTSUPP;
2504
2505 if (wdev) {
2506 struct ieee80211_sub_if_data *sdata;
2507
2508 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2509 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2510 vif = &sdata->vif;
2511 }
2512
2513 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2514 }
2515
2516 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2517 struct sk_buff *skb,
2518 struct netlink_callback *cb,
2519 void *data, int len)
2520 {
2521 struct ieee80211_local *local = wiphy_priv(wiphy);
2522
2523 if (!local->ops->testmode_dump)
2524 return -EOPNOTSUPP;
2525
2526 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2527 }
2528 #endif
2529
2530 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2531 enum ieee80211_smps_mode smps_mode)
2532 {
2533 struct sta_info *sta;
2534 enum ieee80211_smps_mode old_req;
2535
2536 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2537 return -EINVAL;
2538
2539 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2540 return 0;
2541
2542 old_req = sdata->u.ap.req_smps;
2543 sdata->u.ap.req_smps = smps_mode;
2544
2545 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2546 if (old_req == smps_mode ||
2547 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2548 return 0;
2549
2550 ht_dbg(sdata,
2551 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2552 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2553
2554 mutex_lock(&sdata->local->sta_mtx);
2555 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2556 /*
2557 * Only stations associated to our AP and
2558 * associated VLANs
2559 */
2560 if (sta->sdata->bss != &sdata->u.ap)
2561 continue;
2562
2563 /* This station doesn't support MIMO - skip it */
2564 if (sta_info_tx_streams(sta) == 1)
2565 continue;
2566
2567 /*
2568 * Don't wake up a STA just to send the action frame
2569 * unless we are getting more restrictive.
2570 */
2571 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2572 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2573 smps_mode)) {
2574 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2575 sta->sta.addr);
2576 continue;
2577 }
2578
2579 /*
2580 * If the STA is not authorized, wait until it gets
2581 * authorized and the action frame will be sent then.
2582 */
2583 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2584 continue;
2585
2586 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2587 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2588 sdata->vif.bss_conf.bssid);
2589 }
2590 mutex_unlock(&sdata->local->sta_mtx);
2591
2592 sdata->smps_mode = smps_mode;
2593 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2594
2595 return 0;
2596 }
2597
2598 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2599 enum ieee80211_smps_mode smps_mode)
2600 {
2601 const u8 *ap;
2602 enum ieee80211_smps_mode old_req;
2603 int err;
2604 struct sta_info *sta;
2605 bool tdls_peer_found = false;
2606
2607 lockdep_assert_held(&sdata->wdev.mtx);
2608
2609 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2610 return -EINVAL;
2611
2612 old_req = sdata->u.mgd.req_smps;
2613 sdata->u.mgd.req_smps = smps_mode;
2614
2615 if (old_req == smps_mode &&
2616 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2617 return 0;
2618
2619 /*
2620 * If not associated, or current association is not an HT
2621 * association, there's no need to do anything, just store
2622 * the new value until we associate.
2623 */
2624 if (!sdata->u.mgd.associated ||
2625 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2626 return 0;
2627
2628 ap = sdata->u.mgd.associated->bssid;
2629
2630 rcu_read_lock();
2631 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2632 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2633 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2634 continue;
2635
2636 tdls_peer_found = true;
2637 break;
2638 }
2639 rcu_read_unlock();
2640
2641 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2642 if (tdls_peer_found || !sdata->u.mgd.powersave)
2643 smps_mode = IEEE80211_SMPS_OFF;
2644 else
2645 smps_mode = IEEE80211_SMPS_DYNAMIC;
2646 }
2647
2648 /* send SM PS frame to AP */
2649 err = ieee80211_send_smps_action(sdata, smps_mode,
2650 ap, ap);
2651 if (err)
2652 sdata->u.mgd.req_smps = old_req;
2653 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2654 ieee80211_teardown_tdls_peers(sdata);
2655
2656 return err;
2657 }
2658
2659 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2660 bool enabled, int timeout)
2661 {
2662 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2663 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2664
2665 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2666 return -EOPNOTSUPP;
2667
2668 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2669 return -EOPNOTSUPP;
2670
2671 if (enabled == sdata->u.mgd.powersave &&
2672 timeout == local->dynamic_ps_forced_timeout)
2673 return 0;
2674
2675 sdata->u.mgd.powersave = enabled;
2676 local->dynamic_ps_forced_timeout = timeout;
2677
2678 /* no change, but if automatic follow powersave */
2679 sdata_lock(sdata);
2680 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2681 sdata_unlock(sdata);
2682
2683 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2684 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2685
2686 ieee80211_recalc_ps(local);
2687 ieee80211_recalc_ps_vif(sdata);
2688
2689 return 0;
2690 }
2691
2692 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2693 struct net_device *dev,
2694 s32 rssi_thold, u32 rssi_hyst)
2695 {
2696 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2697 struct ieee80211_vif *vif = &sdata->vif;
2698 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2699
2700 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2701 rssi_hyst == bss_conf->cqm_rssi_hyst)
2702 return 0;
2703
2704 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2705 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2706 return -EOPNOTSUPP;
2707
2708 bss_conf->cqm_rssi_thold = rssi_thold;
2709 bss_conf->cqm_rssi_hyst = rssi_hyst;
2710 bss_conf->cqm_rssi_low = 0;
2711 bss_conf->cqm_rssi_high = 0;
2712 sdata->u.mgd.last_cqm_event_signal = 0;
2713
2714 /* tell the driver upon association, unless already associated */
2715 if (sdata->u.mgd.associated &&
2716 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2717 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2718
2719 return 0;
2720 }
2721
2722 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2723 struct net_device *dev,
2724 s32 rssi_low, s32 rssi_high)
2725 {
2726 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2727 struct ieee80211_vif *vif = &sdata->vif;
2728 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2729
2730 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2731 return -EOPNOTSUPP;
2732
2733 bss_conf->cqm_rssi_low = rssi_low;
2734 bss_conf->cqm_rssi_high = rssi_high;
2735 bss_conf->cqm_rssi_thold = 0;
2736 bss_conf->cqm_rssi_hyst = 0;
2737 sdata->u.mgd.last_cqm_event_signal = 0;
2738
2739 /* tell the driver upon association, unless already associated */
2740 if (sdata->u.mgd.associated &&
2741 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2742 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2743
2744 return 0;
2745 }
2746
2747 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2748 struct net_device *dev,
2749 const u8 *addr,
2750 const struct cfg80211_bitrate_mask *mask)
2751 {
2752 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2753 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2754 int i, ret;
2755
2756 if (!ieee80211_sdata_running(sdata))
2757 return -ENETDOWN;
2758
2759 /*
2760 * If active validate the setting and reject it if it doesn't leave
2761 * at least one basic rate usable, since we really have to be able
2762 * to send something, and if we're an AP we have to be able to do
2763 * so at a basic rate so that all clients can receive it.
2764 */
2765 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2766 sdata->vif.bss_conf.chandef.chan) {
2767 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2768 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2769
2770 if (!(mask->control[band].legacy & basic_rates))
2771 return -EINVAL;
2772 }
2773
2774 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2775 ret = drv_set_bitrate_mask(local, sdata, mask);
2776 if (ret)
2777 return ret;
2778 }
2779
2780 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2781 struct ieee80211_supported_band *sband = wiphy->bands[i];
2782 int j;
2783
2784 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2785 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2786 sizeof(mask->control[i].ht_mcs));
2787 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2788 mask->control[i].vht_mcs,
2789 sizeof(mask->control[i].vht_mcs));
2790
2791 sdata->rc_has_mcs_mask[i] = false;
2792 sdata->rc_has_vht_mcs_mask[i] = false;
2793 if (!sband)
2794 continue;
2795
2796 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2797 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2798 sdata->rc_has_mcs_mask[i] = true;
2799 break;
2800 }
2801 }
2802
2803 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2804 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2805 sdata->rc_has_vht_mcs_mask[i] = true;
2806 break;
2807 }
2808 }
2809 }
2810
2811 return 0;
2812 }
2813
2814 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2815 struct net_device *dev,
2816 struct cfg80211_chan_def *chandef,
2817 u32 cac_time_ms)
2818 {
2819 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2820 struct ieee80211_local *local = sdata->local;
2821 int err;
2822
2823 mutex_lock(&local->mtx);
2824 if (!list_empty(&local->roc_list) || local->scanning) {
2825 err = -EBUSY;
2826 goto out_unlock;
2827 }
2828
2829 /* whatever, but channel contexts should not complain about that one */
2830 sdata->smps_mode = IEEE80211_SMPS_OFF;
2831 sdata->needed_rx_chains = local->rx_chains;
2832
2833 err = ieee80211_vif_use_channel(sdata, chandef,
2834 IEEE80211_CHANCTX_SHARED);
2835 if (err)
2836 goto out_unlock;
2837
2838 ieee80211_queue_delayed_work(&sdata->local->hw,
2839 &sdata->dfs_cac_timer_work,
2840 msecs_to_jiffies(cac_time_ms));
2841
2842 out_unlock:
2843 mutex_unlock(&local->mtx);
2844 return err;
2845 }
2846
2847 static struct cfg80211_beacon_data *
2848 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2849 {
2850 struct cfg80211_beacon_data *new_beacon;
2851 u8 *pos;
2852 int len;
2853
2854 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2855 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2856 beacon->probe_resp_len;
2857
2858 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2859 if (!new_beacon)
2860 return NULL;
2861
2862 pos = (u8 *)(new_beacon + 1);
2863 if (beacon->head_len) {
2864 new_beacon->head_len = beacon->head_len;
2865 new_beacon->head = pos;
2866 memcpy(pos, beacon->head, beacon->head_len);
2867 pos += beacon->head_len;
2868 }
2869 if (beacon->tail_len) {
2870 new_beacon->tail_len = beacon->tail_len;
2871 new_beacon->tail = pos;
2872 memcpy(pos, beacon->tail, beacon->tail_len);
2873 pos += beacon->tail_len;
2874 }
2875 if (beacon->beacon_ies_len) {
2876 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2877 new_beacon->beacon_ies = pos;
2878 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2879 pos += beacon->beacon_ies_len;
2880 }
2881 if (beacon->proberesp_ies_len) {
2882 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2883 new_beacon->proberesp_ies = pos;
2884 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2885 pos += beacon->proberesp_ies_len;
2886 }
2887 if (beacon->assocresp_ies_len) {
2888 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2889 new_beacon->assocresp_ies = pos;
2890 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2891 pos += beacon->assocresp_ies_len;
2892 }
2893 if (beacon->probe_resp_len) {
2894 new_beacon->probe_resp_len = beacon->probe_resp_len;
2895 new_beacon->probe_resp = pos;
2896 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2897 pos += beacon->probe_resp_len;
2898 }
2899
2900 return new_beacon;
2901 }
2902
2903 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2904 {
2905 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2906
2907 ieee80211_queue_work(&sdata->local->hw,
2908 &sdata->csa_finalize_work);
2909 }
2910 EXPORT_SYMBOL(ieee80211_csa_finish);
2911
2912 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2913 u32 *changed)
2914 {
2915 int err;
2916
2917 switch (sdata->vif.type) {
2918 case NL80211_IFTYPE_AP:
2919 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2920 NULL);
2921 kfree(sdata->u.ap.next_beacon);
2922 sdata->u.ap.next_beacon = NULL;
2923
2924 if (err < 0)
2925 return err;
2926 *changed |= err;
2927 break;
2928 case NL80211_IFTYPE_ADHOC:
2929 err = ieee80211_ibss_finish_csa(sdata);
2930 if (err < 0)
2931 return err;
2932 *changed |= err;
2933 break;
2934 #ifdef CONFIG_MAC80211_MESH
2935 case NL80211_IFTYPE_MESH_POINT:
2936 err = ieee80211_mesh_finish_csa(sdata);
2937 if (err < 0)
2938 return err;
2939 *changed |= err;
2940 break;
2941 #endif
2942 default:
2943 WARN_ON(1);
2944 return -EINVAL;
2945 }
2946
2947 return 0;
2948 }
2949
2950 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2951 {
2952 struct ieee80211_local *local = sdata->local;
2953 u32 changed = 0;
2954 int err;
2955
2956 sdata_assert_lock(sdata);
2957 lockdep_assert_held(&local->mtx);
2958 lockdep_assert_held(&local->chanctx_mtx);
2959
2960 /*
2961 * using reservation isn't immediate as it may be deferred until later
2962 * with multi-vif. once reservation is complete it will re-schedule the
2963 * work with no reserved_chanctx so verify chandef to check if it
2964 * completed successfully
2965 */
2966
2967 if (sdata->reserved_chanctx) {
2968 /*
2969 * with multi-vif csa driver may call ieee80211_csa_finish()
2970 * many times while waiting for other interfaces to use their
2971 * reservations
2972 */
2973 if (sdata->reserved_ready)
2974 return 0;
2975
2976 return ieee80211_vif_use_reserved_context(sdata);
2977 }
2978
2979 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2980 &sdata->csa_chandef))
2981 return -EINVAL;
2982
2983 sdata->vif.csa_active = false;
2984
2985 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2986 if (err)
2987 return err;
2988
2989 ieee80211_bss_info_change_notify(sdata, changed);
2990
2991 if (sdata->csa_block_tx) {
2992 ieee80211_wake_vif_queues(local, sdata,
2993 IEEE80211_QUEUE_STOP_REASON_CSA);
2994 sdata->csa_block_tx = false;
2995 }
2996
2997 err = drv_post_channel_switch(sdata);
2998 if (err)
2999 return err;
3000
3001 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3002
3003 return 0;
3004 }
3005
3006 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3007 {
3008 if (__ieee80211_csa_finalize(sdata)) {
3009 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3010 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3011 GFP_KERNEL);
3012 }
3013 }
3014
3015 void ieee80211_csa_finalize_work(struct work_struct *work)
3016 {
3017 struct ieee80211_sub_if_data *sdata =
3018 container_of(work, struct ieee80211_sub_if_data,
3019 csa_finalize_work);
3020 struct ieee80211_local *local = sdata->local;
3021
3022 sdata_lock(sdata);
3023 mutex_lock(&local->mtx);
3024 mutex_lock(&local->chanctx_mtx);
3025
3026 /* AP might have been stopped while waiting for the lock. */
3027 if (!sdata->vif.csa_active)
3028 goto unlock;
3029
3030 if (!ieee80211_sdata_running(sdata))
3031 goto unlock;
3032
3033 ieee80211_csa_finalize(sdata);
3034
3035 unlock:
3036 mutex_unlock(&local->chanctx_mtx);
3037 mutex_unlock(&local->mtx);
3038 sdata_unlock(sdata);
3039 }
3040
3041 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3042 struct cfg80211_csa_settings *params,
3043 u32 *changed)
3044 {
3045 struct ieee80211_csa_settings csa = {};
3046 int err;
3047
3048 switch (sdata->vif.type) {
3049 case NL80211_IFTYPE_AP:
3050 sdata->u.ap.next_beacon =
3051 cfg80211_beacon_dup(&params->beacon_after);
3052 if (!sdata->u.ap.next_beacon)
3053 return -ENOMEM;
3054
3055 /*
3056 * With a count of 0, we don't have to wait for any
3057 * TBTT before switching, so complete the CSA
3058 * immediately. In theory, with a count == 1 we
3059 * should delay the switch until just before the next
3060 * TBTT, but that would complicate things so we switch
3061 * immediately too. If we would delay the switch
3062 * until the next TBTT, we would have to set the probe
3063 * response here.
3064 *
3065 * TODO: A channel switch with count <= 1 without
3066 * sending a CSA action frame is kind of useless,
3067 * because the clients won't know we're changing
3068 * channels. The action frame must be implemented
3069 * either here or in the userspace.
3070 */
3071 if (params->count <= 1)
3072 break;
3073
3074 if ((params->n_counter_offsets_beacon >
3075 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3076 (params->n_counter_offsets_presp >
3077 IEEE80211_MAX_CSA_COUNTERS_NUM))
3078 return -EINVAL;
3079
3080 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3081 csa.counter_offsets_presp = params->counter_offsets_presp;
3082 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3083 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3084 csa.count = params->count;
3085
3086 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3087 if (err < 0) {
3088 kfree(sdata->u.ap.next_beacon);
3089 return err;
3090 }
3091 *changed |= err;
3092
3093 break;
3094 case NL80211_IFTYPE_ADHOC:
3095 if (!sdata->vif.bss_conf.ibss_joined)
3096 return -EINVAL;
3097
3098 if (params->chandef.width != sdata->u.ibss.chandef.width)
3099 return -EINVAL;
3100
3101 switch (params->chandef.width) {
3102 case NL80211_CHAN_WIDTH_40:
3103 if (cfg80211_get_chandef_type(&params->chandef) !=
3104 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3105 return -EINVAL;
3106 case NL80211_CHAN_WIDTH_5:
3107 case NL80211_CHAN_WIDTH_10:
3108 case NL80211_CHAN_WIDTH_20_NOHT:
3109 case NL80211_CHAN_WIDTH_20:
3110 break;
3111 default:
3112 return -EINVAL;
3113 }
3114
3115 /* changes into another band are not supported */
3116 if (sdata->u.ibss.chandef.chan->band !=
3117 params->chandef.chan->band)
3118 return -EINVAL;
3119
3120 /* see comments in the NL80211_IFTYPE_AP block */
3121 if (params->count > 1) {
3122 err = ieee80211_ibss_csa_beacon(sdata, params);
3123 if (err < 0)
3124 return err;
3125 *changed |= err;
3126 }
3127
3128 ieee80211_send_action_csa(sdata, params);
3129
3130 break;
3131 #ifdef CONFIG_MAC80211_MESH
3132 case NL80211_IFTYPE_MESH_POINT: {
3133 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3134
3135 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3136 return -EINVAL;
3137
3138 /* changes into another band are not supported */
3139 if (sdata->vif.bss_conf.chandef.chan->band !=
3140 params->chandef.chan->band)
3141 return -EINVAL;
3142
3143 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3144 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3145 if (!ifmsh->pre_value)
3146 ifmsh->pre_value = 1;
3147 else
3148 ifmsh->pre_value++;
3149 }
3150
3151 /* see comments in the NL80211_IFTYPE_AP block */
3152 if (params->count > 1) {
3153 err = ieee80211_mesh_csa_beacon(sdata, params);
3154 if (err < 0) {
3155 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3156 return err;
3157 }
3158 *changed |= err;
3159 }
3160
3161 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3162 ieee80211_send_action_csa(sdata, params);
3163
3164 break;
3165 }
3166 #endif
3167 default:
3168 return -EOPNOTSUPP;
3169 }
3170
3171 return 0;
3172 }
3173
3174 static int
3175 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3176 struct cfg80211_csa_settings *params)
3177 {
3178 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3179 struct ieee80211_local *local = sdata->local;
3180 struct ieee80211_channel_switch ch_switch;
3181 struct ieee80211_chanctx_conf *conf;
3182 struct ieee80211_chanctx *chanctx;
3183 u32 changed = 0;
3184 int err;
3185
3186 sdata_assert_lock(sdata);
3187 lockdep_assert_held(&local->mtx);
3188
3189 if (!list_empty(&local->roc_list) || local->scanning)
3190 return -EBUSY;
3191
3192 if (sdata->wdev.cac_started)
3193 return -EBUSY;
3194
3195 if (cfg80211_chandef_identical(&params->chandef,
3196 &sdata->vif.bss_conf.chandef))
3197 return -EINVAL;
3198
3199 /* don't allow another channel switch if one is already active. */
3200 if (sdata->vif.csa_active)
3201 return -EBUSY;
3202
3203 mutex_lock(&local->chanctx_mtx);
3204 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3205 lockdep_is_held(&local->chanctx_mtx));
3206 if (!conf) {
3207 err = -EBUSY;
3208 goto out;
3209 }
3210
3211 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3212
3213 ch_switch.timestamp = 0;
3214 ch_switch.device_timestamp = 0;
3215 ch_switch.block_tx = params->block_tx;
3216 ch_switch.chandef = params->chandef;
3217 ch_switch.count = params->count;
3218
3219 err = drv_pre_channel_switch(sdata, &ch_switch);
3220 if (err)
3221 goto out;
3222
3223 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3224 chanctx->mode,
3225 params->radar_required);
3226 if (err)
3227 goto out;
3228
3229 /* if reservation is invalid then this will fail */
3230 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3231 if (err) {
3232 ieee80211_vif_unreserve_chanctx(sdata);
3233 goto out;
3234 }
3235
3236 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3237 if (err) {
3238 ieee80211_vif_unreserve_chanctx(sdata);
3239 goto out;
3240 }
3241
3242 sdata->csa_chandef = params->chandef;
3243 sdata->csa_block_tx = params->block_tx;
3244 sdata->vif.csa_active = true;
3245
3246 if (sdata->csa_block_tx)
3247 ieee80211_stop_vif_queues(local, sdata,
3248 IEEE80211_QUEUE_STOP_REASON_CSA);
3249
3250 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3251 params->count);
3252
3253 if (changed) {
3254 ieee80211_bss_info_change_notify(sdata, changed);
3255 drv_channel_switch_beacon(sdata, &params->chandef);
3256 } else {
3257 /* if the beacon didn't change, we can finalize immediately */
3258 ieee80211_csa_finalize(sdata);
3259 }
3260
3261 out:
3262 mutex_unlock(&local->chanctx_mtx);
3263 return err;
3264 }
3265
3266 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3267 struct cfg80211_csa_settings *params)
3268 {
3269 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3270 struct ieee80211_local *local = sdata->local;
3271 int err;
3272
3273 mutex_lock(&local->mtx);
3274 err = __ieee80211_channel_switch(wiphy, dev, params);
3275 mutex_unlock(&local->mtx);
3276
3277 return err;
3278 }
3279
3280 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3281 {
3282 lockdep_assert_held(&local->mtx);
3283
3284 local->roc_cookie_counter++;
3285
3286 /* wow, you wrapped 64 bits ... more likely a bug */
3287 if (WARN_ON(local->roc_cookie_counter == 0))
3288 local->roc_cookie_counter++;
3289
3290 return local->roc_cookie_counter;
3291 }
3292
3293 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3294 u64 *cookie, gfp_t gfp)
3295 {
3296 unsigned long spin_flags;
3297 struct sk_buff *ack_skb;
3298 int id;
3299
3300 ack_skb = skb_copy(skb, gfp);
3301 if (!ack_skb)
3302 return -ENOMEM;
3303
3304 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3305 id = idr_alloc(&local->ack_status_frames, ack_skb,
3306 1, 0x10000, GFP_ATOMIC);
3307 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3308
3309 if (id < 0) {
3310 kfree_skb(ack_skb);
3311 return -ENOMEM;
3312 }
3313
3314 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3315
3316 *cookie = ieee80211_mgmt_tx_cookie(local);
3317 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3318
3319 return 0;
3320 }
3321
3322 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3323 struct wireless_dev *wdev,
3324 u16 frame_type, bool reg)
3325 {
3326 struct ieee80211_local *local = wiphy_priv(wiphy);
3327 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3328
3329 switch (frame_type) {
3330 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3331 if (reg) {
3332 local->probe_req_reg++;
3333 sdata->vif.probe_req_reg++;
3334 } else {
3335 if (local->probe_req_reg)
3336 local->probe_req_reg--;
3337
3338 if (sdata->vif.probe_req_reg)
3339 sdata->vif.probe_req_reg--;
3340 }
3341
3342 if (!local->open_count)
3343 break;
3344
3345 if (sdata->vif.probe_req_reg == 1)
3346 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3347 FIF_PROBE_REQ);
3348 else if (sdata->vif.probe_req_reg == 0)
3349 drv_config_iface_filter(local, sdata, 0,
3350 FIF_PROBE_REQ);
3351
3352 ieee80211_configure_filter(local);
3353 break;
3354 default:
3355 break;
3356 }
3357 }
3358
3359 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3360 {
3361 struct ieee80211_local *local = wiphy_priv(wiphy);
3362
3363 if (local->started)
3364 return -EOPNOTSUPP;
3365
3366 return drv_set_antenna(local, tx_ant, rx_ant);
3367 }
3368
3369 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3370 {
3371 struct ieee80211_local *local = wiphy_priv(wiphy);
3372
3373 return drv_get_antenna(local, tx_ant, rx_ant);
3374 }
3375
3376 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3377 struct net_device *dev,
3378 struct cfg80211_gtk_rekey_data *data)
3379 {
3380 struct ieee80211_local *local = wiphy_priv(wiphy);
3381 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3382
3383 if (!local->ops->set_rekey_data)
3384 return -EOPNOTSUPP;
3385
3386 drv_set_rekey_data(local, sdata, data);
3387
3388 return 0;
3389 }
3390
3391 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3392 const u8 *peer, u64 *cookie)
3393 {
3394 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3395 struct ieee80211_local *local = sdata->local;
3396 struct ieee80211_qos_hdr *nullfunc;
3397 struct sk_buff *skb;
3398 int size = sizeof(*nullfunc);
3399 __le16 fc;
3400 bool qos;
3401 struct ieee80211_tx_info *info;
3402 struct sta_info *sta;
3403 struct ieee80211_chanctx_conf *chanctx_conf;
3404 enum nl80211_band band;
3405 int ret;
3406
3407 /* the lock is needed to assign the cookie later */
3408 mutex_lock(&local->mtx);
3409
3410 rcu_read_lock();
3411 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3412 if (WARN_ON(!chanctx_conf)) {
3413 ret = -EINVAL;
3414 goto unlock;
3415 }
3416 band = chanctx_conf->def.chan->band;
3417 sta = sta_info_get_bss(sdata, peer);
3418 if (sta) {
3419 qos = sta->sta.wme;
3420 } else {
3421 ret = -ENOLINK;
3422 goto unlock;
3423 }
3424
3425 if (qos) {
3426 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3427 IEEE80211_STYPE_QOS_NULLFUNC |
3428 IEEE80211_FCTL_FROMDS);
3429 } else {
3430 size -= 2;
3431 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3432 IEEE80211_STYPE_NULLFUNC |
3433 IEEE80211_FCTL_FROMDS);
3434 }
3435
3436 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3437 if (!skb) {
3438 ret = -ENOMEM;
3439 goto unlock;
3440 }
3441
3442 skb->dev = dev;
3443
3444 skb_reserve(skb, local->hw.extra_tx_headroom);
3445
3446 nullfunc = skb_put(skb, size);
3447 nullfunc->frame_control = fc;
3448 nullfunc->duration_id = 0;
3449 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3450 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3451 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3452 nullfunc->seq_ctrl = 0;
3453
3454 info = IEEE80211_SKB_CB(skb);
3455
3456 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3457 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3458 info->band = band;
3459
3460 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3461 skb->priority = 7;
3462 if (qos)
3463 nullfunc->qos_ctrl = cpu_to_le16(7);
3464
3465 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3466 if (ret) {
3467 kfree_skb(skb);
3468 goto unlock;
3469 }
3470
3471 local_bh_disable();
3472 ieee80211_xmit(sdata, sta, skb);
3473 local_bh_enable();
3474
3475 ret = 0;
3476 unlock:
3477 rcu_read_unlock();
3478 mutex_unlock(&local->mtx);
3479
3480 return ret;
3481 }
3482
3483 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3484 struct wireless_dev *wdev,
3485 struct cfg80211_chan_def *chandef)
3486 {
3487 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3488 struct ieee80211_local *local = wiphy_priv(wiphy);
3489 struct ieee80211_chanctx_conf *chanctx_conf;
3490 int ret = -ENODATA;
3491
3492 rcu_read_lock();
3493 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3494 if (chanctx_conf) {
3495 *chandef = sdata->vif.bss_conf.chandef;
3496 ret = 0;
3497 } else if (local->open_count > 0 &&
3498 local->open_count == local->monitors &&
3499 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3500 if (local->use_chanctx)
3501 *chandef = local->monitor_chandef;
3502 else
3503 *chandef = local->_oper_chandef;
3504 ret = 0;
3505 }
3506 rcu_read_unlock();
3507
3508 return ret;
3509 }
3510
3511 #ifdef CONFIG_PM
3512 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3513 {
3514 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3515 }
3516 #endif
3517
3518 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3519 struct net_device *dev,
3520 struct cfg80211_qos_map *qos_map)
3521 {
3522 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3523 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3524
3525 if (qos_map) {
3526 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3527 if (!new_qos_map)
3528 return -ENOMEM;
3529 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3530 } else {
3531 /* A NULL qos_map was passed to disable QoS mapping */
3532 new_qos_map = NULL;
3533 }
3534
3535 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3536 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3537 if (old_qos_map)
3538 kfree_rcu(old_qos_map, rcu_head);
3539
3540 return 0;
3541 }
3542
3543 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3544 struct net_device *dev,
3545 struct cfg80211_chan_def *chandef)
3546 {
3547 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3548 int ret;
3549 u32 changed = 0;
3550
3551 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3552 if (ret == 0)
3553 ieee80211_bss_info_change_notify(sdata, changed);
3554
3555 return ret;
3556 }
3557
3558 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3559 u8 tsid, const u8 *peer, u8 up,
3560 u16 admitted_time)
3561 {
3562 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3563 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3564 int ac = ieee802_1d_to_ac[up];
3565
3566 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3567 return -EOPNOTSUPP;
3568
3569 if (!(sdata->wmm_acm & BIT(up)))
3570 return -EINVAL;
3571
3572 if (ifmgd->tx_tspec[ac].admitted_time)
3573 return -EBUSY;
3574
3575 if (admitted_time) {
3576 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3577 ifmgd->tx_tspec[ac].tsid = tsid;
3578 ifmgd->tx_tspec[ac].up = up;
3579 }
3580
3581 return 0;
3582 }
3583
3584 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3585 u8 tsid, const u8 *peer)
3586 {
3587 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3588 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3589 struct ieee80211_local *local = wiphy_priv(wiphy);
3590 int ac;
3591
3592 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3593 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3594
3595 /* skip unused entries */
3596 if (!tx_tspec->admitted_time)
3597 continue;
3598
3599 if (tx_tspec->tsid != tsid)
3600 continue;
3601
3602 /* due to this new packets will be reassigned to non-ACM ACs */
3603 tx_tspec->up = -1;
3604
3605 /* Make sure that all packets have been sent to avoid to
3606 * restore the QoS params on packets that are still on the
3607 * queues.
3608 */
3609 synchronize_net();
3610 ieee80211_flush_queues(local, sdata, false);
3611
3612 /* restore the normal QoS parameters
3613 * (unconditionally to avoid races)
3614 */
3615 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3616 tx_tspec->downgraded = false;
3617 ieee80211_sta_handle_tspec_ac_params(sdata);
3618
3619 /* finally clear all the data */
3620 memset(tx_tspec, 0, sizeof(*tx_tspec));
3621
3622 return 0;
3623 }
3624
3625 return -ENOENT;
3626 }
3627
3628 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3629 u8 inst_id,
3630 enum nl80211_nan_func_term_reason reason,
3631 gfp_t gfp)
3632 {
3633 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3634 struct cfg80211_nan_func *func;
3635 u64 cookie;
3636
3637 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3638 return;
3639
3640 spin_lock_bh(&sdata->u.nan.func_lock);
3641
3642 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3643 if (WARN_ON(!func)) {
3644 spin_unlock_bh(&sdata->u.nan.func_lock);
3645 return;
3646 }
3647
3648 cookie = func->cookie;
3649 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3650
3651 spin_unlock_bh(&sdata->u.nan.func_lock);
3652
3653 cfg80211_free_nan_func(func);
3654
3655 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3656 reason, cookie, gfp);
3657 }
3658 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3659
3660 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3661 struct cfg80211_nan_match_params *match,
3662 gfp_t gfp)
3663 {
3664 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3665 struct cfg80211_nan_func *func;
3666
3667 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3668 return;
3669
3670 spin_lock_bh(&sdata->u.nan.func_lock);
3671
3672 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3673 if (WARN_ON(!func)) {
3674 spin_unlock_bh(&sdata->u.nan.func_lock);
3675 return;
3676 }
3677 match->cookie = func->cookie;
3678
3679 spin_unlock_bh(&sdata->u.nan.func_lock);
3680
3681 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3682 }
3683 EXPORT_SYMBOL(ieee80211_nan_func_match);
3684
3685 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3686 struct net_device *dev,
3687 const bool enabled)
3688 {
3689 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3690
3691 sdata->u.ap.multicast_to_unicast = enabled;
3692
3693 return 0;
3694 }
3695
3696 const struct cfg80211_ops mac80211_config_ops = {
3697 .add_virtual_intf = ieee80211_add_iface,
3698 .del_virtual_intf = ieee80211_del_iface,
3699 .change_virtual_intf = ieee80211_change_iface,
3700 .start_p2p_device = ieee80211_start_p2p_device,
3701 .stop_p2p_device = ieee80211_stop_p2p_device,
3702 .add_key = ieee80211_add_key,
3703 .del_key = ieee80211_del_key,
3704 .get_key = ieee80211_get_key,
3705 .set_default_key = ieee80211_config_default_key,
3706 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3707 .start_ap = ieee80211_start_ap,
3708 .change_beacon = ieee80211_change_beacon,
3709 .stop_ap = ieee80211_stop_ap,
3710 .add_station = ieee80211_add_station,
3711 .del_station = ieee80211_del_station,
3712 .change_station = ieee80211_change_station,
3713 .get_station = ieee80211_get_station,
3714 .dump_station = ieee80211_dump_station,
3715 .dump_survey = ieee80211_dump_survey,
3716 #ifdef CONFIG_MAC80211_MESH
3717 .add_mpath = ieee80211_add_mpath,
3718 .del_mpath = ieee80211_del_mpath,
3719 .change_mpath = ieee80211_change_mpath,
3720 .get_mpath = ieee80211_get_mpath,
3721 .dump_mpath = ieee80211_dump_mpath,
3722 .get_mpp = ieee80211_get_mpp,
3723 .dump_mpp = ieee80211_dump_mpp,
3724 .update_mesh_config = ieee80211_update_mesh_config,
3725 .get_mesh_config = ieee80211_get_mesh_config,
3726 .join_mesh = ieee80211_join_mesh,
3727 .leave_mesh = ieee80211_leave_mesh,
3728 #endif
3729 .join_ocb = ieee80211_join_ocb,
3730 .leave_ocb = ieee80211_leave_ocb,
3731 .change_bss = ieee80211_change_bss,
3732 .set_txq_params = ieee80211_set_txq_params,
3733 .set_monitor_channel = ieee80211_set_monitor_channel,
3734 .suspend = ieee80211_suspend,
3735 .resume = ieee80211_resume,
3736 .scan = ieee80211_scan,
3737 .abort_scan = ieee80211_abort_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 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
3762 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3763 .set_antenna = ieee80211_set_antenna,
3764 .get_antenna = ieee80211_get_antenna,
3765 .set_rekey_data = ieee80211_set_rekey_data,
3766 .tdls_oper = ieee80211_tdls_oper,
3767 .tdls_mgmt = ieee80211_tdls_mgmt,
3768 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3769 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3770 .probe_client = ieee80211_probe_client,
3771 .set_noack_map = ieee80211_set_noack_map,
3772 #ifdef CONFIG_PM
3773 .set_wakeup = ieee80211_set_wakeup,
3774 #endif
3775 .get_channel = ieee80211_cfg_get_channel,
3776 .start_radar_detection = ieee80211_start_radar_detection,
3777 .channel_switch = ieee80211_channel_switch,
3778 .set_qos_map = ieee80211_set_qos_map,
3779 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3780 .add_tx_ts = ieee80211_add_tx_ts,
3781 .del_tx_ts = ieee80211_del_tx_ts,
3782 .start_nan = ieee80211_start_nan,
3783 .stop_nan = ieee80211_stop_nan,
3784 .nan_change_conf = ieee80211_nan_change_conf,
3785 .add_nan_func = ieee80211_add_nan_func,
3786 .del_nan_func = ieee80211_del_nan_func,
3787 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
3788 };
CRIS linux kernel tree