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[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2015 Intel Mobile Communications GmbH
6 * Copyright (C) 2015-2017 Intel Deutschland GmbH
7 *
8 * This file is GPLv2 as found in COPYING.
9 */
10
11 #include <linux/ieee80211.h>
12 #include <linux/nl80211.h>
13 #include <linux/rtnetlink.h>
14 #include <linux/slab.h>
15 #include <net/net_namespace.h>
16 #include <linux/rcupdate.h>
17 #include <linux/if_ether.h>
18 #include <net/cfg80211.h>
19 #include "ieee80211_i.h"
20 #include "driver-ops.h"
21 #include "rate.h"
22 #include "mesh.h"
23 #include "wme.h"
24
25 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
26 struct vif_params *params)
27 {
28 bool mu_mimo_groups = false;
29 bool mu_mimo_follow = false;
30
31 if (params->vht_mumimo_groups) {
32 u64 membership;
33
34 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
35
36 memcpy(sdata->vif.bss_conf.mu_group.membership,
37 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
38 memcpy(sdata->vif.bss_conf.mu_group.position,
39 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
40 WLAN_USER_POSITION_LEN);
41 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
42 /* don't care about endianness - just check for 0 */
43 memcpy(&membership, params->vht_mumimo_groups,
44 WLAN_MEMBERSHIP_LEN);
45 mu_mimo_groups = membership != 0;
46 }
47
48 if (params->vht_mumimo_follow_addr) {
49 mu_mimo_follow =
50 is_valid_ether_addr(params->vht_mumimo_follow_addr);
51 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
52 params->vht_mumimo_follow_addr);
53 }
54
55 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
56 }
57
58 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
59 struct vif_params *params)
60 {
61 struct ieee80211_local *local = sdata->local;
62 struct ieee80211_sub_if_data *monitor_sdata;
63
64 /* check flags first */
65 if (params->flags && ieee80211_sdata_running(sdata)) {
66 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
67
68 /*
69 * Prohibit MONITOR_FLAG_COOK_FRAMES and
70 * MONITOR_FLAG_ACTIVE to be changed while the
71 * interface is up.
72 * Else we would need to add a lot of cruft
73 * to update everything:
74 * cooked_mntrs, monitor and all fif_* counters
75 * reconfigure hardware
76 */
77 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
78 return -EBUSY;
79 }
80
81 /* also validate MU-MIMO change */
82 monitor_sdata = rtnl_dereference(local->monitor_sdata);
83
84 if (!monitor_sdata &&
85 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
86 return -EOPNOTSUPP;
87
88 /* apply all changes now - no failures allowed */
89
90 if (monitor_sdata)
91 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
92
93 if (params->flags) {
94 if (ieee80211_sdata_running(sdata)) {
95 ieee80211_adjust_monitor_flags(sdata, -1);
96 sdata->u.mntr.flags = params->flags;
97 ieee80211_adjust_monitor_flags(sdata, 1);
98
99 ieee80211_configure_filter(local);
100 } else {
101 /*
102 * Because the interface is down, ieee80211_do_stop
103 * and ieee80211_do_open take care of "everything"
104 * mentioned in the comment above.
105 */
106 sdata->u.mntr.flags = params->flags;
107 }
108 }
109
110 return 0;
111 }
112
113 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
114 const char *name,
115 unsigned char name_assign_type,
116 enum nl80211_iftype type,
117 struct vif_params *params)
118 {
119 struct ieee80211_local *local = wiphy_priv(wiphy);
120 struct wireless_dev *wdev;
121 struct ieee80211_sub_if_data *sdata;
122 int err;
123
124 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
125 if (err)
126 return ERR_PTR(err);
127
128 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
129
130 if (type == NL80211_IFTYPE_MONITOR) {
131 err = ieee80211_set_mon_options(sdata, params);
132 if (err) {
133 ieee80211_if_remove(sdata);
134 return NULL;
135 }
136 }
137
138 return wdev;
139 }
140
141 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
142 {
143 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
144
145 return 0;
146 }
147
148 static int ieee80211_change_iface(struct wiphy *wiphy,
149 struct net_device *dev,
150 enum nl80211_iftype type,
151 struct vif_params *params)
152 {
153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
154 int ret;
155
156 ret = ieee80211_if_change_type(sdata, type);
157 if (ret)
158 return ret;
159
160 if (type == NL80211_IFTYPE_AP_VLAN &&
161 params && params->use_4addr == 0) {
162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
163 ieee80211_check_fast_rx_iface(sdata);
164 } else if (type == NL80211_IFTYPE_STATION &&
165 params && params->use_4addr >= 0) {
166 sdata->u.mgd.use_4addr = params->use_4addr;
167 }
168
169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
170 ret = ieee80211_set_mon_options(sdata, params);
171 if (ret)
172 return ret;
173 }
174
175 return 0;
176 }
177
178 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
179 struct wireless_dev *wdev)
180 {
181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
182 int ret;
183
184 mutex_lock(&sdata->local->chanctx_mtx);
185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
186 mutex_unlock(&sdata->local->chanctx_mtx);
187 if (ret < 0)
188 return ret;
189
190 return ieee80211_do_open(wdev, true);
191 }
192
193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
194 struct wireless_dev *wdev)
195 {
196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
197 }
198
199 static int ieee80211_start_nan(struct wiphy *wiphy,
200 struct wireless_dev *wdev,
201 struct cfg80211_nan_conf *conf)
202 {
203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
204 int ret;
205
206 mutex_lock(&sdata->local->chanctx_mtx);
207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
208 mutex_unlock(&sdata->local->chanctx_mtx);
209 if (ret < 0)
210 return ret;
211
212 ret = ieee80211_do_open(wdev, true);
213 if (ret)
214 return ret;
215
216 ret = drv_start_nan(sdata->local, sdata, conf);
217 if (ret)
218 ieee80211_sdata_stop(sdata);
219
220 sdata->u.nan.conf = *conf;
221
222 return ret;
223 }
224
225 static void ieee80211_stop_nan(struct wiphy *wiphy,
226 struct wireless_dev *wdev)
227 {
228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
229
230 drv_stop_nan(sdata->local, sdata);
231 ieee80211_sdata_stop(sdata);
232 }
233
234 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
235 struct wireless_dev *wdev,
236 struct cfg80211_nan_conf *conf,
237 u32 changes)
238 {
239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
240 struct cfg80211_nan_conf new_conf;
241 int ret = 0;
242
243 if (sdata->vif.type != NL80211_IFTYPE_NAN)
244 return -EOPNOTSUPP;
245
246 if (!ieee80211_sdata_running(sdata))
247 return -ENETDOWN;
248
249 new_conf = sdata->u.nan.conf;
250
251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
252 new_conf.master_pref = conf->master_pref;
253
254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
255 new_conf.bands = conf->bands;
256
257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
258 if (!ret)
259 sdata->u.nan.conf = new_conf;
260
261 return ret;
262 }
263
264 static int ieee80211_add_nan_func(struct wiphy *wiphy,
265 struct wireless_dev *wdev,
266 struct cfg80211_nan_func *nan_func)
267 {
268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
269 int ret;
270
271 if (sdata->vif.type != NL80211_IFTYPE_NAN)
272 return -EOPNOTSUPP;
273
274 if (!ieee80211_sdata_running(sdata))
275 return -ENETDOWN;
276
277 spin_lock_bh(&sdata->u.nan.func_lock);
278
279 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
281 GFP_ATOMIC);
282 spin_unlock_bh(&sdata->u.nan.func_lock);
283
284 if (ret < 0)
285 return ret;
286
287 nan_func->instance_id = ret;
288
289 WARN_ON(nan_func->instance_id == 0);
290
291 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
292 if (ret) {
293 spin_lock_bh(&sdata->u.nan.func_lock);
294 idr_remove(&sdata->u.nan.function_inst_ids,
295 nan_func->instance_id);
296 spin_unlock_bh(&sdata->u.nan.func_lock);
297 }
298
299 return ret;
300 }
301
302 static struct cfg80211_nan_func *
303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
304 u64 cookie)
305 {
306 struct cfg80211_nan_func *func;
307 int id;
308
309 lockdep_assert_held(&sdata->u.nan.func_lock);
310
311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
312 if (func->cookie == cookie)
313 return func;
314 }
315
316 return NULL;
317 }
318
319 static void ieee80211_del_nan_func(struct wiphy *wiphy,
320 struct wireless_dev *wdev, u64 cookie)
321 {
322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
323 struct cfg80211_nan_func *func;
324 u8 instance_id = 0;
325
326 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
327 !ieee80211_sdata_running(sdata))
328 return;
329
330 spin_lock_bh(&sdata->u.nan.func_lock);
331
332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
333 if (func)
334 instance_id = func->instance_id;
335
336 spin_unlock_bh(&sdata->u.nan.func_lock);
337
338 if (instance_id)
339 drv_del_nan_func(sdata->local, sdata, instance_id);
340 }
341
342 static int ieee80211_set_noack_map(struct wiphy *wiphy,
343 struct net_device *dev,
344 u16 noack_map)
345 {
346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
347
348 sdata->noack_map = noack_map;
349
350 ieee80211_check_fast_xmit_iface(sdata);
351
352 return 0;
353 }
354
355 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
356 u8 key_idx, bool pairwise, const u8 *mac_addr,
357 struct key_params *params)
358 {
359 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
360 struct ieee80211_local *local = sdata->local;
361 struct sta_info *sta = NULL;
362 const struct ieee80211_cipher_scheme *cs = NULL;
363 struct ieee80211_key *key;
364 int err;
365
366 if (!ieee80211_sdata_running(sdata))
367 return -ENETDOWN;
368
369 /* reject WEP and TKIP keys if WEP failed to initialize */
370 switch (params->cipher) {
371 case WLAN_CIPHER_SUITE_WEP40:
372 case WLAN_CIPHER_SUITE_TKIP:
373 case WLAN_CIPHER_SUITE_WEP104:
374 if (IS_ERR(local->wep_tx_tfm))
375 return -EINVAL;
376 break;
377 case WLAN_CIPHER_SUITE_CCMP:
378 case WLAN_CIPHER_SUITE_CCMP_256:
379 case WLAN_CIPHER_SUITE_AES_CMAC:
380 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
381 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
382 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
383 case WLAN_CIPHER_SUITE_GCMP:
384 case WLAN_CIPHER_SUITE_GCMP_256:
385 break;
386 default:
387 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
388 break;
389 }
390
391 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
392 params->key, params->seq_len, params->seq,
393 cs);
394 if (IS_ERR(key))
395 return PTR_ERR(key);
396
397 if (pairwise)
398 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
399
400 mutex_lock(&local->sta_mtx);
401
402 if (mac_addr) {
403 sta = sta_info_get_bss(sdata, mac_addr);
404 /*
405 * The ASSOC test makes sure the driver is ready to
406 * receive the key. When wpa_supplicant has roamed
407 * using FT, it attempts to set the key before
408 * association has completed, this rejects that attempt
409 * so it will set the key again after association.
410 *
411 * TODO: accept the key if we have a station entry and
412 * add it to the device after the station.
413 */
414 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
415 ieee80211_key_free_unused(key);
416 err = -ENOENT;
417 goto out_unlock;
418 }
419 }
420
421 switch (sdata->vif.type) {
422 case NL80211_IFTYPE_STATION:
423 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
424 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
425 break;
426 case NL80211_IFTYPE_AP:
427 case NL80211_IFTYPE_AP_VLAN:
428 /* Keys without a station are used for TX only */
429 if (sta && test_sta_flag(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, sdata->vif.type == NL80211_IFTYPE_STATION);
498
499 ret = 0;
500 out_unlock:
501 mutex_unlock(&local->key_mtx);
502 mutex_unlock(&local->sta_mtx);
503
504 return ret;
505 }
506
507 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
508 u8 key_idx, bool pairwise, const u8 *mac_addr,
509 void *cookie,
510 void (*callback)(void *cookie,
511 struct key_params *params))
512 {
513 struct ieee80211_sub_if_data *sdata;
514 struct sta_info *sta = NULL;
515 u8 seq[6] = {0};
516 struct key_params params;
517 struct ieee80211_key *key = NULL;
518 u64 pn64;
519 u32 iv32;
520 u16 iv16;
521 int err = -ENOENT;
522 struct ieee80211_key_seq kseq = {};
523
524 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
525
526 rcu_read_lock();
527
528 if (mac_addr) {
529 sta = sta_info_get_bss(sdata, mac_addr);
530 if (!sta)
531 goto out;
532
533 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
534 key = rcu_dereference(sta->ptk[key_idx]);
535 else if (!pairwise &&
536 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
537 key = rcu_dereference(sta->gtk[key_idx]);
538 } else
539 key = rcu_dereference(sdata->keys[key_idx]);
540
541 if (!key)
542 goto out;
543
544 memset(&params, 0, sizeof(params));
545
546 params.cipher = key->conf.cipher;
547
548 switch (key->conf.cipher) {
549 case WLAN_CIPHER_SUITE_TKIP:
550 pn64 = atomic64_read(&key->conf.tx_pn);
551 iv32 = TKIP_PN_TO_IV32(pn64);
552 iv16 = TKIP_PN_TO_IV16(pn64);
553
554 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
555 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
556 drv_get_key_seq(sdata->local, key, &kseq);
557 iv32 = kseq.tkip.iv32;
558 iv16 = kseq.tkip.iv16;
559 }
560
561 seq[0] = iv16 & 0xff;
562 seq[1] = (iv16 >> 8) & 0xff;
563 seq[2] = iv32 & 0xff;
564 seq[3] = (iv32 >> 8) & 0xff;
565 seq[4] = (iv32 >> 16) & 0xff;
566 seq[5] = (iv32 >> 24) & 0xff;
567 params.seq = seq;
568 params.seq_len = 6;
569 break;
570 case WLAN_CIPHER_SUITE_CCMP:
571 case WLAN_CIPHER_SUITE_CCMP_256:
572 case WLAN_CIPHER_SUITE_AES_CMAC:
573 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
574 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
575 offsetof(typeof(kseq), aes_cmac));
576 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
577 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
578 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
579 offsetof(typeof(kseq), aes_gmac));
580 case WLAN_CIPHER_SUITE_GCMP:
581 case WLAN_CIPHER_SUITE_GCMP_256:
582 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
583 offsetof(typeof(kseq), gcmp));
584
585 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
586 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
587 drv_get_key_seq(sdata->local, key, &kseq);
588 memcpy(seq, kseq.ccmp.pn, 6);
589 } else {
590 pn64 = atomic64_read(&key->conf.tx_pn);
591 seq[0] = pn64;
592 seq[1] = pn64 >> 8;
593 seq[2] = pn64 >> 16;
594 seq[3] = pn64 >> 24;
595 seq[4] = pn64 >> 32;
596 seq[5] = pn64 >> 40;
597 }
598 params.seq = seq;
599 params.seq_len = 6;
600 break;
601 default:
602 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
603 break;
604 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
605 break;
606 drv_get_key_seq(sdata->local, key, &kseq);
607 params.seq = kseq.hw.seq;
608 params.seq_len = kseq.hw.seq_len;
609 break;
610 }
611
612 params.key = key->conf.key;
613 params.key_len = key->conf.keylen;
614
615 callback(cookie, &params);
616 err = 0;
617
618 out:
619 rcu_read_unlock();
620 return err;
621 }
622
623 static int ieee80211_config_default_key(struct wiphy *wiphy,
624 struct net_device *dev,
625 u8 key_idx, bool uni,
626 bool multi)
627 {
628 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
629
630 ieee80211_set_default_key(sdata, key_idx, uni, multi);
631
632 return 0;
633 }
634
635 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
636 struct net_device *dev,
637 u8 key_idx)
638 {
639 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
640
641 ieee80211_set_default_mgmt_key(sdata, key_idx);
642
643 return 0;
644 }
645
646 void sta_set_rate_info_tx(struct sta_info *sta,
647 const struct ieee80211_tx_rate *rate,
648 struct rate_info *rinfo)
649 {
650 rinfo->flags = 0;
651 if (rate->flags & IEEE80211_TX_RC_MCS) {
652 rinfo->flags |= RATE_INFO_FLAGS_MCS;
653 rinfo->mcs = rate->idx;
654 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
655 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
656 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
657 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
658 } else {
659 struct ieee80211_supported_band *sband;
660 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
661 u16 brate;
662
663 sband = ieee80211_get_sband(sta->sdata);
664 if (sband) {
665 brate = sband->bitrates[rate->idx].bitrate;
666 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
667 }
668 }
669 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
670 rinfo->bw = RATE_INFO_BW_40;
671 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
672 rinfo->bw = RATE_INFO_BW_80;
673 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
674 rinfo->bw = RATE_INFO_BW_160;
675 else
676 rinfo->bw = RATE_INFO_BW_20;
677 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
678 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
679 }
680
681 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
682 int idx, u8 *mac, struct station_info *sinfo)
683 {
684 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
685 struct ieee80211_local *local = sdata->local;
686 struct sta_info *sta;
687 int ret = -ENOENT;
688
689 mutex_lock(&local->sta_mtx);
690
691 sta = sta_info_get_by_idx(sdata, idx);
692 if (sta) {
693 ret = 0;
694 memcpy(mac, sta->sta.addr, ETH_ALEN);
695 sta_set_sinfo(sta, sinfo);
696 }
697
698 mutex_unlock(&local->sta_mtx);
699
700 return ret;
701 }
702
703 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
704 int idx, struct survey_info *survey)
705 {
706 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
707
708 return drv_get_survey(local, idx, survey);
709 }
710
711 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
712 const u8 *mac, struct station_info *sinfo)
713 {
714 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
715 struct ieee80211_local *local = sdata->local;
716 struct sta_info *sta;
717 int ret = -ENOENT;
718
719 mutex_lock(&local->sta_mtx);
720
721 sta = sta_info_get_bss(sdata, mac);
722 if (sta) {
723 ret = 0;
724 sta_set_sinfo(sta, sinfo);
725 }
726
727 mutex_unlock(&local->sta_mtx);
728
729 return ret;
730 }
731
732 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
733 struct cfg80211_chan_def *chandef)
734 {
735 struct ieee80211_local *local = wiphy_priv(wiphy);
736 struct ieee80211_sub_if_data *sdata;
737 int ret = 0;
738
739 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
740 return 0;
741
742 mutex_lock(&local->mtx);
743 if (local->use_chanctx) {
744 sdata = rtnl_dereference(local->monitor_sdata);
745 if (sdata) {
746 ieee80211_vif_release_channel(sdata);
747 ret = ieee80211_vif_use_channel(sdata, chandef,
748 IEEE80211_CHANCTX_EXCLUSIVE);
749 }
750 } else if (local->open_count == local->monitors) {
751 local->_oper_chandef = *chandef;
752 ieee80211_hw_config(local, 0);
753 }
754
755 if (ret == 0)
756 local->monitor_chandef = *chandef;
757 mutex_unlock(&local->mtx);
758
759 return ret;
760 }
761
762 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
763 const u8 *resp, size_t resp_len,
764 const struct ieee80211_csa_settings *csa)
765 {
766 struct probe_resp *new, *old;
767
768 if (!resp || !resp_len)
769 return 1;
770
771 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
772
773 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
774 if (!new)
775 return -ENOMEM;
776
777 new->len = resp_len;
778 memcpy(new->data, resp, resp_len);
779
780 if (csa)
781 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
782 csa->n_counter_offsets_presp *
783 sizeof(new->csa_counter_offsets[0]));
784
785 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
786 if (old)
787 kfree_rcu(old, rcu_head);
788
789 return 0;
790 }
791
792 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
793 struct cfg80211_beacon_data *params,
794 const struct ieee80211_csa_settings *csa)
795 {
796 struct beacon_data *new, *old;
797 int new_head_len, new_tail_len;
798 int size, err;
799 u32 changed = BSS_CHANGED_BEACON;
800
801 old = sdata_dereference(sdata->u.ap.beacon, sdata);
802
803
804 /* Need to have a beacon head if we don't have one yet */
805 if (!params->head && !old)
806 return -EINVAL;
807
808 /* new or old head? */
809 if (params->head)
810 new_head_len = params->head_len;
811 else
812 new_head_len = old->head_len;
813
814 /* new or old tail? */
815 if (params->tail || !old)
816 /* params->tail_len will be zero for !params->tail */
817 new_tail_len = params->tail_len;
818 else
819 new_tail_len = old->tail_len;
820
821 size = sizeof(*new) + new_head_len + new_tail_len;
822
823 new = kzalloc(size, GFP_KERNEL);
824 if (!new)
825 return -ENOMEM;
826
827 /* start filling the new info now */
828
829 /*
830 * pointers go into the block we allocated,
831 * memory is | beacon_data | head | tail |
832 */
833 new->head = ((u8 *) new) + sizeof(*new);
834 new->tail = new->head + new_head_len;
835 new->head_len = new_head_len;
836 new->tail_len = new_tail_len;
837
838 if (csa) {
839 new->csa_current_counter = csa->count;
840 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
841 csa->n_counter_offsets_beacon *
842 sizeof(new->csa_counter_offsets[0]));
843 }
844
845 /* copy in head */
846 if (params->head)
847 memcpy(new->head, params->head, new_head_len);
848 else
849 memcpy(new->head, old->head, new_head_len);
850
851 /* copy in optional tail */
852 if (params->tail)
853 memcpy(new->tail, params->tail, new_tail_len);
854 else
855 if (old)
856 memcpy(new->tail, old->tail, new_tail_len);
857
858 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
859 params->probe_resp_len, csa);
860 if (err < 0)
861 return err;
862 if (err == 0)
863 changed |= BSS_CHANGED_AP_PROBE_RESP;
864
865 rcu_assign_pointer(sdata->u.ap.beacon, new);
866
867 if (old)
868 kfree_rcu(old, rcu_head);
869
870 return changed;
871 }
872
873 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
874 struct cfg80211_ap_settings *params)
875 {
876 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
877 struct ieee80211_local *local = sdata->local;
878 struct beacon_data *old;
879 struct ieee80211_sub_if_data *vlan;
880 u32 changed = BSS_CHANGED_BEACON_INT |
881 BSS_CHANGED_BEACON_ENABLED |
882 BSS_CHANGED_BEACON |
883 BSS_CHANGED_SSID |
884 BSS_CHANGED_P2P_PS |
885 BSS_CHANGED_TXPOWER;
886 int err;
887 int prev_beacon_int;
888
889 old = sdata_dereference(sdata->u.ap.beacon, sdata);
890 if (old)
891 return -EALREADY;
892
893 switch (params->smps_mode) {
894 case NL80211_SMPS_OFF:
895 sdata->smps_mode = IEEE80211_SMPS_OFF;
896 break;
897 case NL80211_SMPS_STATIC:
898 sdata->smps_mode = IEEE80211_SMPS_STATIC;
899 break;
900 case NL80211_SMPS_DYNAMIC:
901 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
902 break;
903 default:
904 return -EINVAL;
905 }
906 sdata->u.ap.req_smps = sdata->smps_mode;
907
908 sdata->needed_rx_chains = sdata->local->rx_chains;
909
910 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
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 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
921 return err;
922 }
923
924 /*
925 * Apply control port protocol, this allows us to
926 * not encrypt dynamic WEP control frames.
927 */
928 sdata->control_port_protocol = params->crypto.control_port_ethertype;
929 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
930 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
931 &params->crypto,
932 sdata->vif.type);
933
934 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
935 vlan->control_port_protocol =
936 params->crypto.control_port_ethertype;
937 vlan->control_port_no_encrypt =
938 params->crypto.control_port_no_encrypt;
939 vlan->encrypt_headroom =
940 ieee80211_cs_headroom(sdata->local,
941 &params->crypto,
942 vlan->vif.type);
943 }
944
945 sdata->vif.bss_conf.dtim_period = params->dtim_period;
946 sdata->vif.bss_conf.enable_beacon = true;
947 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
948
949 sdata->vif.bss_conf.ssid_len = params->ssid_len;
950 if (params->ssid_len)
951 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
952 params->ssid_len);
953 sdata->vif.bss_conf.hidden_ssid =
954 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
955
956 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
957 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
958 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
959 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
960 if (params->p2p_opp_ps)
961 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
962 IEEE80211_P2P_OPPPS_ENABLE_BIT;
963
964 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
965 if (err < 0) {
966 ieee80211_vif_release_channel(sdata);
967 return err;
968 }
969 changed |= err;
970
971 err = drv_start_ap(sdata->local, sdata);
972 if (err) {
973 old = sdata_dereference(sdata->u.ap.beacon, sdata);
974
975 if (old)
976 kfree_rcu(old, rcu_head);
977 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
978 ieee80211_vif_release_channel(sdata);
979 return err;
980 }
981
982 ieee80211_recalc_dtim(local, sdata);
983 ieee80211_bss_info_change_notify(sdata, changed);
984
985 netif_carrier_on(dev);
986 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
987 netif_carrier_on(vlan->dev);
988
989 return 0;
990 }
991
992 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
993 struct cfg80211_beacon_data *params)
994 {
995 struct ieee80211_sub_if_data *sdata;
996 struct beacon_data *old;
997 int err;
998
999 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1000 sdata_assert_lock(sdata);
1001
1002 /* don't allow changing the beacon while CSA is in place - offset
1003 * of channel switch counter may change
1004 */
1005 if (sdata->vif.csa_active)
1006 return -EBUSY;
1007
1008 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1009 if (!old)
1010 return -ENOENT;
1011
1012 err = ieee80211_assign_beacon(sdata, params, NULL);
1013 if (err < 0)
1014 return err;
1015 ieee80211_bss_info_change_notify(sdata, err);
1016 return 0;
1017 }
1018
1019 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1020 {
1021 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1022 struct ieee80211_sub_if_data *vlan;
1023 struct ieee80211_local *local = sdata->local;
1024 struct beacon_data *old_beacon;
1025 struct probe_resp *old_probe_resp;
1026 struct cfg80211_chan_def chandef;
1027
1028 sdata_assert_lock(sdata);
1029
1030 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1031 if (!old_beacon)
1032 return -ENOENT;
1033 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1034
1035 /* abort any running channel switch */
1036 mutex_lock(&local->mtx);
1037 sdata->vif.csa_active = false;
1038 if (sdata->csa_block_tx) {
1039 ieee80211_wake_vif_queues(local, sdata,
1040 IEEE80211_QUEUE_STOP_REASON_CSA);
1041 sdata->csa_block_tx = false;
1042 }
1043
1044 mutex_unlock(&local->mtx);
1045
1046 kfree(sdata->u.ap.next_beacon);
1047 sdata->u.ap.next_beacon = NULL;
1048
1049 /* turn off carrier for this interface and dependent VLANs */
1050 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1051 netif_carrier_off(vlan->dev);
1052 netif_carrier_off(dev);
1053
1054 /* remove beacon and probe response */
1055 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1056 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1057 kfree_rcu(old_beacon, rcu_head);
1058 if (old_probe_resp)
1059 kfree_rcu(old_probe_resp, rcu_head);
1060 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1061
1062 __sta_info_flush(sdata, true);
1063 ieee80211_free_keys(sdata, true);
1064
1065 sdata->vif.bss_conf.enable_beacon = false;
1066 sdata->vif.bss_conf.ssid_len = 0;
1067 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1068 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1069
1070 if (sdata->wdev.cac_started) {
1071 chandef = sdata->vif.bss_conf.chandef;
1072 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1073 cfg80211_cac_event(sdata->dev, &chandef,
1074 NL80211_RADAR_CAC_ABORTED,
1075 GFP_KERNEL);
1076 }
1077
1078 drv_stop_ap(sdata->local, sdata);
1079
1080 /* free all potentially still buffered bcast frames */
1081 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1082 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1083
1084 mutex_lock(&local->mtx);
1085 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1086 ieee80211_vif_release_channel(sdata);
1087 mutex_unlock(&local->mtx);
1088
1089 return 0;
1090 }
1091
1092 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1093 struct iapp_layer2_update {
1094 u8 da[ETH_ALEN]; /* broadcast */
1095 u8 sa[ETH_ALEN]; /* STA addr */
1096 __be16 len; /* 6 */
1097 u8 dsap; /* 0 */
1098 u8 ssap; /* 0 */
1099 u8 control;
1100 u8 xid_info[3];
1101 } __packed;
1102
1103 static void ieee80211_send_layer2_update(struct sta_info *sta)
1104 {
1105 struct iapp_layer2_update *msg;
1106 struct sk_buff *skb;
1107
1108 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1109 * bridge devices */
1110
1111 skb = dev_alloc_skb(sizeof(*msg));
1112 if (!skb)
1113 return;
1114 msg = skb_put(skb, sizeof(*msg));
1115
1116 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1117 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1118
1119 eth_broadcast_addr(msg->da);
1120 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1121 msg->len = htons(6);
1122 msg->dsap = 0;
1123 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1124 msg->control = 0xaf; /* XID response lsb.1111F101.
1125 * F=0 (no poll command; unsolicited frame) */
1126 msg->xid_info[0] = 0x81; /* XID format identifier */
1127 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1128 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1129
1130 skb->dev = sta->sdata->dev;
1131 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1132 memset(skb->cb, 0, sizeof(skb->cb));
1133 netif_rx_ni(skb);
1134 }
1135
1136 static int sta_apply_auth_flags(struct ieee80211_local *local,
1137 struct sta_info *sta,
1138 u32 mask, u32 set)
1139 {
1140 int ret;
1141
1142 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1143 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1144 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1145 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1146 if (ret)
1147 return ret;
1148 }
1149
1150 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1151 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1152 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1153 /*
1154 * When peer becomes associated, init rate control as
1155 * well. Some drivers require rate control initialized
1156 * before drv_sta_state() is called.
1157 */
1158 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1159 rate_control_rate_init(sta);
1160
1161 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1162 if (ret)
1163 return ret;
1164 }
1165
1166 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1167 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1168 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1169 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1170 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1171 else
1172 ret = 0;
1173 if (ret)
1174 return ret;
1175 }
1176
1177 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1178 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1179 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1180 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1181 if (ret)
1182 return ret;
1183 }
1184
1185 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1186 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1187 test_sta_flag(sta, WLAN_STA_AUTH)) {
1188 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1189 if (ret)
1190 return ret;
1191 }
1192
1193 return 0;
1194 }
1195
1196 static void sta_apply_mesh_params(struct ieee80211_local *local,
1197 struct sta_info *sta,
1198 struct station_parameters *params)
1199 {
1200 #ifdef CONFIG_MAC80211_MESH
1201 struct ieee80211_sub_if_data *sdata = sta->sdata;
1202 u32 changed = 0;
1203
1204 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1205 switch (params->plink_state) {
1206 case NL80211_PLINK_ESTAB:
1207 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1208 changed = mesh_plink_inc_estab_count(sdata);
1209 sta->mesh->plink_state = params->plink_state;
1210 sta->mesh->aid = params->peer_aid;
1211
1212 ieee80211_mps_sta_status_update(sta);
1213 changed |= ieee80211_mps_set_sta_local_pm(sta,
1214 sdata->u.mesh.mshcfg.power_mode);
1215 break;
1216 case NL80211_PLINK_LISTEN:
1217 case NL80211_PLINK_BLOCKED:
1218 case NL80211_PLINK_OPN_SNT:
1219 case NL80211_PLINK_OPN_RCVD:
1220 case NL80211_PLINK_CNF_RCVD:
1221 case NL80211_PLINK_HOLDING:
1222 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1223 changed = mesh_plink_dec_estab_count(sdata);
1224 sta->mesh->plink_state = params->plink_state;
1225
1226 ieee80211_mps_sta_status_update(sta);
1227 changed |= ieee80211_mps_set_sta_local_pm(sta,
1228 NL80211_MESH_POWER_UNKNOWN);
1229 break;
1230 default:
1231 /* nothing */
1232 break;
1233 }
1234 }
1235
1236 switch (params->plink_action) {
1237 case NL80211_PLINK_ACTION_NO_ACTION:
1238 /* nothing */
1239 break;
1240 case NL80211_PLINK_ACTION_OPEN:
1241 changed |= mesh_plink_open(sta);
1242 break;
1243 case NL80211_PLINK_ACTION_BLOCK:
1244 changed |= mesh_plink_block(sta);
1245 break;
1246 }
1247
1248 if (params->local_pm)
1249 changed |= ieee80211_mps_set_sta_local_pm(sta,
1250 params->local_pm);
1251
1252 ieee80211_mbss_info_change_notify(sdata, changed);
1253 #endif
1254 }
1255
1256 static int sta_apply_parameters(struct ieee80211_local *local,
1257 struct sta_info *sta,
1258 struct station_parameters *params)
1259 {
1260 int ret = 0;
1261 struct ieee80211_supported_band *sband;
1262 struct ieee80211_sub_if_data *sdata = sta->sdata;
1263 u32 mask, set;
1264
1265 sband = ieee80211_get_sband(sdata);
1266 if (!sband)
1267 return -EINVAL;
1268
1269 mask = params->sta_flags_mask;
1270 set = params->sta_flags_set;
1271
1272 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1273 /*
1274 * In mesh mode, ASSOCIATED isn't part of the nl80211
1275 * API but must follow AUTHENTICATED for driver state.
1276 */
1277 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1278 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1279 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1280 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1281 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1282 /*
1283 * TDLS -- everything follows authorized, but
1284 * only becoming authorized is possible, not
1285 * going back
1286 */
1287 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1288 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1289 BIT(NL80211_STA_FLAG_ASSOCIATED);
1290 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1291 BIT(NL80211_STA_FLAG_ASSOCIATED);
1292 }
1293 }
1294
1295 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1296 local->hw.queues >= IEEE80211_NUM_ACS)
1297 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1298
1299 /* auth flags will be set later for TDLS,
1300 * and for unassociated stations that move to assocaited */
1301 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1302 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1303 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1304 ret = sta_apply_auth_flags(local, sta, mask, set);
1305 if (ret)
1306 return ret;
1307 }
1308
1309 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1310 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1311 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1312 else
1313 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1314 }
1315
1316 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1317 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1318 if (set & BIT(NL80211_STA_FLAG_MFP))
1319 set_sta_flag(sta, WLAN_STA_MFP);
1320 else
1321 clear_sta_flag(sta, WLAN_STA_MFP);
1322 }
1323
1324 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1325 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1326 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1327 else
1328 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1329 }
1330
1331 /* mark TDLS channel switch support, if the AP allows it */
1332 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1333 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1334 params->ext_capab_len >= 4 &&
1335 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1336 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1337
1338 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1339 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1340 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1341 params->ext_capab_len >= 8 &&
1342 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1343 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1344
1345 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1346 sta->sta.uapsd_queues = params->uapsd_queues;
1347 sta->sta.max_sp = params->max_sp;
1348 }
1349
1350 /* The sender might not have sent the last bit, consider it to be 0 */
1351 if (params->ext_capab_len >= 8) {
1352 u8 val = (params->ext_capab[7] &
1353 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1354
1355 /* we did get all the bits, take the MSB as well */
1356 if (params->ext_capab_len >= 9) {
1357 u8 val_msb = params->ext_capab[8] &
1358 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1359 val_msb <<= 1;
1360 val |= val_msb;
1361 }
1362
1363 switch (val) {
1364 case 1:
1365 sta->sta.max_amsdu_subframes = 32;
1366 break;
1367 case 2:
1368 sta->sta.max_amsdu_subframes = 16;
1369 break;
1370 case 3:
1371 sta->sta.max_amsdu_subframes = 8;
1372 break;
1373 default:
1374 sta->sta.max_amsdu_subframes = 0;
1375 }
1376 }
1377
1378 /*
1379 * cfg80211 validates this (1-2007) and allows setting the AID
1380 * only when creating a new station entry
1381 */
1382 if (params->aid)
1383 sta->sta.aid = params->aid;
1384
1385 /*
1386 * Some of the following updates would be racy if called on an
1387 * existing station, via ieee80211_change_station(). However,
1388 * all such changes are rejected by cfg80211 except for updates
1389 * changing the supported rates on an existing but not yet used
1390 * TDLS peer.
1391 */
1392
1393 if (params->listen_interval >= 0)
1394 sta->listen_interval = params->listen_interval;
1395
1396 if (params->supported_rates) {
1397 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1398 sband, params->supported_rates,
1399 params->supported_rates_len,
1400 &sta->sta.supp_rates[sband->band]);
1401 }
1402
1403 if (params->ht_capa)
1404 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1405 params->ht_capa, sta);
1406
1407 /* VHT can override some HT caps such as the A-MSDU max length */
1408 if (params->vht_capa)
1409 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1410 params->vht_capa, sta);
1411
1412 if (params->opmode_notif_used) {
1413 /* returned value is only needed for rc update, but the
1414 * rc isn't initialized here yet, so ignore it
1415 */
1416 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1417 sband->band);
1418 }
1419
1420 if (params->support_p2p_ps >= 0)
1421 sta->sta.support_p2p_ps = params->support_p2p_ps;
1422
1423 if (ieee80211_vif_is_mesh(&sdata->vif))
1424 sta_apply_mesh_params(local, sta, params);
1425
1426 /* set the STA state after all sta info from usermode has been set */
1427 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1428 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1429 ret = sta_apply_auth_flags(local, sta, mask, set);
1430 if (ret)
1431 return ret;
1432 }
1433
1434 return 0;
1435 }
1436
1437 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1438 const u8 *mac,
1439 struct station_parameters *params)
1440 {
1441 struct ieee80211_local *local = wiphy_priv(wiphy);
1442 struct sta_info *sta;
1443 struct ieee80211_sub_if_data *sdata;
1444 int err;
1445 int layer2_update;
1446
1447 if (params->vlan) {
1448 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1449
1450 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1451 sdata->vif.type != NL80211_IFTYPE_AP)
1452 return -EINVAL;
1453 } else
1454 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1455
1456 if (ether_addr_equal(mac, sdata->vif.addr))
1457 return -EINVAL;
1458
1459 if (is_multicast_ether_addr(mac))
1460 return -EINVAL;
1461
1462 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1463 sdata->vif.type == NL80211_IFTYPE_STATION &&
1464 !sdata->u.mgd.associated)
1465 return -EINVAL;
1466
1467 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1468 if (!sta)
1469 return -ENOMEM;
1470
1471 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1472 sta->sta.tdls = true;
1473
1474 err = sta_apply_parameters(local, sta, params);
1475 if (err) {
1476 sta_info_free(local, sta);
1477 return err;
1478 }
1479
1480 /*
1481 * for TDLS and for unassociated station, rate control should be
1482 * initialized only when rates are known and station is marked
1483 * authorized/associated
1484 */
1485 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1486 test_sta_flag(sta, WLAN_STA_ASSOC))
1487 rate_control_rate_init(sta);
1488
1489 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1490 sdata->vif.type == NL80211_IFTYPE_AP;
1491
1492 err = sta_info_insert_rcu(sta);
1493 if (err) {
1494 rcu_read_unlock();
1495 return err;
1496 }
1497
1498 if (layer2_update)
1499 ieee80211_send_layer2_update(sta);
1500
1501 rcu_read_unlock();
1502
1503 return 0;
1504 }
1505
1506 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1507 struct station_del_parameters *params)
1508 {
1509 struct ieee80211_sub_if_data *sdata;
1510
1511 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1512
1513 if (params->mac)
1514 return sta_info_destroy_addr_bss(sdata, params->mac);
1515
1516 sta_info_flush(sdata);
1517 return 0;
1518 }
1519
1520 static int ieee80211_change_station(struct wiphy *wiphy,
1521 struct net_device *dev, const u8 *mac,
1522 struct station_parameters *params)
1523 {
1524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1525 struct ieee80211_local *local = wiphy_priv(wiphy);
1526 struct sta_info *sta;
1527 struct ieee80211_sub_if_data *vlansdata;
1528 enum cfg80211_station_type statype;
1529 int err;
1530
1531 mutex_lock(&local->sta_mtx);
1532
1533 sta = sta_info_get_bss(sdata, mac);
1534 if (!sta) {
1535 err = -ENOENT;
1536 goto out_err;
1537 }
1538
1539 switch (sdata->vif.type) {
1540 case NL80211_IFTYPE_MESH_POINT:
1541 if (sdata->u.mesh.user_mpm)
1542 statype = CFG80211_STA_MESH_PEER_USER;
1543 else
1544 statype = CFG80211_STA_MESH_PEER_KERNEL;
1545 break;
1546 case NL80211_IFTYPE_ADHOC:
1547 statype = CFG80211_STA_IBSS;
1548 break;
1549 case NL80211_IFTYPE_STATION:
1550 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1551 statype = CFG80211_STA_AP_STA;
1552 break;
1553 }
1554 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1555 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1556 else
1557 statype = CFG80211_STA_TDLS_PEER_SETUP;
1558 break;
1559 case NL80211_IFTYPE_AP:
1560 case NL80211_IFTYPE_AP_VLAN:
1561 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1562 statype = CFG80211_STA_AP_CLIENT;
1563 else
1564 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1565 break;
1566 default:
1567 err = -EOPNOTSUPP;
1568 goto out_err;
1569 }
1570
1571 err = cfg80211_check_station_change(wiphy, params, statype);
1572 if (err)
1573 goto out_err;
1574
1575 if (params->vlan && params->vlan != sta->sdata->dev) {
1576 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1577
1578 if (params->vlan->ieee80211_ptr->use_4addr) {
1579 if (vlansdata->u.vlan.sta) {
1580 err = -EBUSY;
1581 goto out_err;
1582 }
1583
1584 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1585 __ieee80211_check_fast_rx_iface(vlansdata);
1586 }
1587
1588 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1589 sta->sdata->u.vlan.sta)
1590 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1591
1592 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1593 ieee80211_vif_dec_num_mcast(sta->sdata);
1594
1595 sta->sdata = vlansdata;
1596 ieee80211_check_fast_xmit(sta);
1597
1598 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1599 ieee80211_vif_inc_num_mcast(sta->sdata);
1600
1601 ieee80211_send_layer2_update(sta);
1602 }
1603
1604 err = sta_apply_parameters(local, sta, params);
1605 if (err)
1606 goto out_err;
1607
1608 mutex_unlock(&local->sta_mtx);
1609
1610 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1611 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1612 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1613 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1614 sta_info_tx_streams(sta) != 1) {
1615 ht_dbg(sta->sdata,
1616 "%pM just authorized and MIMO capable - update SMPS\n",
1617 sta->sta.addr);
1618 ieee80211_send_smps_action(sta->sdata,
1619 sta->sdata->bss->req_smps,
1620 sta->sta.addr,
1621 sta->sdata->vif.bss_conf.bssid);
1622 }
1623
1624 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1625 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1626 ieee80211_recalc_ps(local);
1627 ieee80211_recalc_ps_vif(sdata);
1628 }
1629
1630 return 0;
1631 out_err:
1632 mutex_unlock(&local->sta_mtx);
1633 return err;
1634 }
1635
1636 #ifdef CONFIG_MAC80211_MESH
1637 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1638 const u8 *dst, const u8 *next_hop)
1639 {
1640 struct ieee80211_sub_if_data *sdata;
1641 struct mesh_path *mpath;
1642 struct sta_info *sta;
1643
1644 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1645
1646 rcu_read_lock();
1647 sta = sta_info_get(sdata, next_hop);
1648 if (!sta) {
1649 rcu_read_unlock();
1650 return -ENOENT;
1651 }
1652
1653 mpath = mesh_path_add(sdata, dst);
1654 if (IS_ERR(mpath)) {
1655 rcu_read_unlock();
1656 return PTR_ERR(mpath);
1657 }
1658
1659 mesh_path_fix_nexthop(mpath, sta);
1660
1661 rcu_read_unlock();
1662 return 0;
1663 }
1664
1665 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1666 const u8 *dst)
1667 {
1668 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1669
1670 if (dst)
1671 return mesh_path_del(sdata, dst);
1672
1673 mesh_path_flush_by_iface(sdata);
1674 return 0;
1675 }
1676
1677 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1678 const u8 *dst, const u8 *next_hop)
1679 {
1680 struct ieee80211_sub_if_data *sdata;
1681 struct mesh_path *mpath;
1682 struct sta_info *sta;
1683
1684 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1685
1686 rcu_read_lock();
1687
1688 sta = sta_info_get(sdata, next_hop);
1689 if (!sta) {
1690 rcu_read_unlock();
1691 return -ENOENT;
1692 }
1693
1694 mpath = mesh_path_lookup(sdata, dst);
1695 if (!mpath) {
1696 rcu_read_unlock();
1697 return -ENOENT;
1698 }
1699
1700 mesh_path_fix_nexthop(mpath, sta);
1701
1702 rcu_read_unlock();
1703 return 0;
1704 }
1705
1706 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1707 struct mpath_info *pinfo)
1708 {
1709 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1710
1711 if (next_hop_sta)
1712 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1713 else
1714 eth_zero_addr(next_hop);
1715
1716 memset(pinfo, 0, sizeof(*pinfo));
1717
1718 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1719
1720 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1721 MPATH_INFO_SN |
1722 MPATH_INFO_METRIC |
1723 MPATH_INFO_EXPTIME |
1724 MPATH_INFO_DISCOVERY_TIMEOUT |
1725 MPATH_INFO_DISCOVERY_RETRIES |
1726 MPATH_INFO_FLAGS;
1727
1728 pinfo->frame_qlen = mpath->frame_queue.qlen;
1729 pinfo->sn = mpath->sn;
1730 pinfo->metric = mpath->metric;
1731 if (time_before(jiffies, mpath->exp_time))
1732 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1733 pinfo->discovery_timeout =
1734 jiffies_to_msecs(mpath->discovery_timeout);
1735 pinfo->discovery_retries = mpath->discovery_retries;
1736 if (mpath->flags & MESH_PATH_ACTIVE)
1737 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1738 if (mpath->flags & MESH_PATH_RESOLVING)
1739 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1740 if (mpath->flags & MESH_PATH_SN_VALID)
1741 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1742 if (mpath->flags & MESH_PATH_FIXED)
1743 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1744 if (mpath->flags & MESH_PATH_RESOLVED)
1745 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1746 }
1747
1748 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1749 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1750
1751 {
1752 struct ieee80211_sub_if_data *sdata;
1753 struct mesh_path *mpath;
1754
1755 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1756
1757 rcu_read_lock();
1758 mpath = mesh_path_lookup(sdata, dst);
1759 if (!mpath) {
1760 rcu_read_unlock();
1761 return -ENOENT;
1762 }
1763 memcpy(dst, mpath->dst, ETH_ALEN);
1764 mpath_set_pinfo(mpath, next_hop, pinfo);
1765 rcu_read_unlock();
1766 return 0;
1767 }
1768
1769 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1770 int idx, u8 *dst, u8 *next_hop,
1771 struct mpath_info *pinfo)
1772 {
1773 struct ieee80211_sub_if_data *sdata;
1774 struct mesh_path *mpath;
1775
1776 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1777
1778 rcu_read_lock();
1779 mpath = mesh_path_lookup_by_idx(sdata, idx);
1780 if (!mpath) {
1781 rcu_read_unlock();
1782 return -ENOENT;
1783 }
1784 memcpy(dst, mpath->dst, ETH_ALEN);
1785 mpath_set_pinfo(mpath, next_hop, pinfo);
1786 rcu_read_unlock();
1787 return 0;
1788 }
1789
1790 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1791 struct mpath_info *pinfo)
1792 {
1793 memset(pinfo, 0, sizeof(*pinfo));
1794 memcpy(mpp, mpath->mpp, ETH_ALEN);
1795
1796 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1797 }
1798
1799 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1800 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1801
1802 {
1803 struct ieee80211_sub_if_data *sdata;
1804 struct mesh_path *mpath;
1805
1806 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1807
1808 rcu_read_lock();
1809 mpath = mpp_path_lookup(sdata, dst);
1810 if (!mpath) {
1811 rcu_read_unlock();
1812 return -ENOENT;
1813 }
1814 memcpy(dst, mpath->dst, ETH_ALEN);
1815 mpp_set_pinfo(mpath, mpp, pinfo);
1816 rcu_read_unlock();
1817 return 0;
1818 }
1819
1820 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1821 int idx, u8 *dst, u8 *mpp,
1822 struct mpath_info *pinfo)
1823 {
1824 struct ieee80211_sub_if_data *sdata;
1825 struct mesh_path *mpath;
1826
1827 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1828
1829 rcu_read_lock();
1830 mpath = mpp_path_lookup_by_idx(sdata, idx);
1831 if (!mpath) {
1832 rcu_read_unlock();
1833 return -ENOENT;
1834 }
1835 memcpy(dst, mpath->dst, ETH_ALEN);
1836 mpp_set_pinfo(mpath, mpp, pinfo);
1837 rcu_read_unlock();
1838 return 0;
1839 }
1840
1841 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1842 struct net_device *dev,
1843 struct mesh_config *conf)
1844 {
1845 struct ieee80211_sub_if_data *sdata;
1846 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1847
1848 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1849 return 0;
1850 }
1851
1852 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1853 {
1854 return (mask >> (parm-1)) & 0x1;
1855 }
1856
1857 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1858 const struct mesh_setup *setup)
1859 {
1860 u8 *new_ie;
1861 const u8 *old_ie;
1862 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1863 struct ieee80211_sub_if_data, u.mesh);
1864
1865 /* allocate information elements */
1866 new_ie = NULL;
1867 old_ie = ifmsh->ie;
1868
1869 if (setup->ie_len) {
1870 new_ie = kmemdup(setup->ie, setup->ie_len,
1871 GFP_KERNEL);
1872 if (!new_ie)
1873 return -ENOMEM;
1874 }
1875 ifmsh->ie_len = setup->ie_len;
1876 ifmsh->ie = new_ie;
1877 kfree(old_ie);
1878
1879 /* now copy the rest of the setup parameters */
1880 ifmsh->mesh_id_len = setup->mesh_id_len;
1881 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1882 ifmsh->mesh_sp_id = setup->sync_method;
1883 ifmsh->mesh_pp_id = setup->path_sel_proto;
1884 ifmsh->mesh_pm_id = setup->path_metric;
1885 ifmsh->user_mpm = setup->user_mpm;
1886 ifmsh->mesh_auth_id = setup->auth_id;
1887 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1888 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1889 if (setup->is_authenticated)
1890 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1891 if (setup->is_secure)
1892 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1893
1894 /* mcast rate setting in Mesh Node */
1895 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1896 sizeof(setup->mcast_rate));
1897 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1898
1899 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1900 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1901
1902 return 0;
1903 }
1904
1905 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1906 struct net_device *dev, u32 mask,
1907 const struct mesh_config *nconf)
1908 {
1909 struct mesh_config *conf;
1910 struct ieee80211_sub_if_data *sdata;
1911 struct ieee80211_if_mesh *ifmsh;
1912
1913 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1914 ifmsh = &sdata->u.mesh;
1915
1916 /* Set the config options which we are interested in setting */
1917 conf = &(sdata->u.mesh.mshcfg);
1918 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1919 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1920 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1921 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1922 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1923 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1924 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1925 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1926 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1927 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1928 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1929 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1930 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1931 conf->element_ttl = nconf->element_ttl;
1932 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1933 if (ifmsh->user_mpm)
1934 return -EBUSY;
1935 conf->auto_open_plinks = nconf->auto_open_plinks;
1936 }
1937 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1938 conf->dot11MeshNbrOffsetMaxNeighbor =
1939 nconf->dot11MeshNbrOffsetMaxNeighbor;
1940 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1941 conf->dot11MeshHWMPmaxPREQretries =
1942 nconf->dot11MeshHWMPmaxPREQretries;
1943 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1944 conf->path_refresh_time = nconf->path_refresh_time;
1945 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1946 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1947 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1948 conf->dot11MeshHWMPactivePathTimeout =
1949 nconf->dot11MeshHWMPactivePathTimeout;
1950 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1951 conf->dot11MeshHWMPpreqMinInterval =
1952 nconf->dot11MeshHWMPpreqMinInterval;
1953 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1954 conf->dot11MeshHWMPperrMinInterval =
1955 nconf->dot11MeshHWMPperrMinInterval;
1956 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1957 mask))
1958 conf->dot11MeshHWMPnetDiameterTraversalTime =
1959 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1960 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1961 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1962 ieee80211_mesh_root_setup(ifmsh);
1963 }
1964 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1965 /* our current gate announcement implementation rides on root
1966 * announcements, so require this ifmsh to also be a root node
1967 * */
1968 if (nconf->dot11MeshGateAnnouncementProtocol &&
1969 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1970 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1971 ieee80211_mesh_root_setup(ifmsh);
1972 }
1973 conf->dot11MeshGateAnnouncementProtocol =
1974 nconf->dot11MeshGateAnnouncementProtocol;
1975 }
1976 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1977 conf->dot11MeshHWMPRannInterval =
1978 nconf->dot11MeshHWMPRannInterval;
1979 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1980 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1981 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1982 /* our RSSI threshold implementation is supported only for
1983 * devices that report signal in dBm.
1984 */
1985 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
1986 return -ENOTSUPP;
1987 conf->rssi_threshold = nconf->rssi_threshold;
1988 }
1989 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1990 conf->ht_opmode = nconf->ht_opmode;
1991 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1992 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1993 }
1994 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1995 conf->dot11MeshHWMPactivePathToRootTimeout =
1996 nconf->dot11MeshHWMPactivePathToRootTimeout;
1997 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1998 conf->dot11MeshHWMProotInterval =
1999 nconf->dot11MeshHWMProotInterval;
2000 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2001 conf->dot11MeshHWMPconfirmationInterval =
2002 nconf->dot11MeshHWMPconfirmationInterval;
2003 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2004 conf->power_mode = nconf->power_mode;
2005 ieee80211_mps_local_status_update(sdata);
2006 }
2007 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2008 conf->dot11MeshAwakeWindowDuration =
2009 nconf->dot11MeshAwakeWindowDuration;
2010 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2011 conf->plink_timeout = nconf->plink_timeout;
2012 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2013 return 0;
2014 }
2015
2016 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2017 const struct mesh_config *conf,
2018 const struct mesh_setup *setup)
2019 {
2020 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2021 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2022 int err;
2023
2024 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2025 err = copy_mesh_setup(ifmsh, setup);
2026 if (err)
2027 return err;
2028
2029 /* can mesh use other SMPS modes? */
2030 sdata->smps_mode = IEEE80211_SMPS_OFF;
2031 sdata->needed_rx_chains = sdata->local->rx_chains;
2032
2033 mutex_lock(&sdata->local->mtx);
2034 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2035 IEEE80211_CHANCTX_SHARED);
2036 mutex_unlock(&sdata->local->mtx);
2037 if (err)
2038 return err;
2039
2040 return ieee80211_start_mesh(sdata);
2041 }
2042
2043 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2044 {
2045 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2046
2047 ieee80211_stop_mesh(sdata);
2048 mutex_lock(&sdata->local->mtx);
2049 ieee80211_vif_release_channel(sdata);
2050 mutex_unlock(&sdata->local->mtx);
2051
2052 return 0;
2053 }
2054 #endif
2055
2056 static int ieee80211_change_bss(struct wiphy *wiphy,
2057 struct net_device *dev,
2058 struct bss_parameters *params)
2059 {
2060 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2061 struct ieee80211_supported_band *sband;
2062 u32 changed = 0;
2063
2064 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2065 return -ENOENT;
2066
2067 sband = ieee80211_get_sband(sdata);
2068 if (!sband)
2069 return -EINVAL;
2070
2071 if (params->use_cts_prot >= 0) {
2072 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2073 changed |= BSS_CHANGED_ERP_CTS_PROT;
2074 }
2075 if (params->use_short_preamble >= 0) {
2076 sdata->vif.bss_conf.use_short_preamble =
2077 params->use_short_preamble;
2078 changed |= BSS_CHANGED_ERP_PREAMBLE;
2079 }
2080
2081 if (!sdata->vif.bss_conf.use_short_slot &&
2082 sband->band == NL80211_BAND_5GHZ) {
2083 sdata->vif.bss_conf.use_short_slot = true;
2084 changed |= BSS_CHANGED_ERP_SLOT;
2085 }
2086
2087 if (params->use_short_slot_time >= 0) {
2088 sdata->vif.bss_conf.use_short_slot =
2089 params->use_short_slot_time;
2090 changed |= BSS_CHANGED_ERP_SLOT;
2091 }
2092
2093 if (params->basic_rates) {
2094 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2095 wiphy->bands[sband->band],
2096 params->basic_rates,
2097 params->basic_rates_len,
2098 &sdata->vif.bss_conf.basic_rates);
2099 changed |= BSS_CHANGED_BASIC_RATES;
2100 ieee80211_check_rate_mask(sdata);
2101 }
2102
2103 if (params->ap_isolate >= 0) {
2104 if (params->ap_isolate)
2105 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2106 else
2107 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2108 ieee80211_check_fast_rx_iface(sdata);
2109 }
2110
2111 if (params->ht_opmode >= 0) {
2112 sdata->vif.bss_conf.ht_operation_mode =
2113 (u16) params->ht_opmode;
2114 changed |= BSS_CHANGED_HT;
2115 }
2116
2117 if (params->p2p_ctwindow >= 0) {
2118 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2119 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2120 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2121 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2122 changed |= BSS_CHANGED_P2P_PS;
2123 }
2124
2125 if (params->p2p_opp_ps > 0) {
2126 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2127 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2128 changed |= BSS_CHANGED_P2P_PS;
2129 } else if (params->p2p_opp_ps == 0) {
2130 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2131 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2132 changed |= BSS_CHANGED_P2P_PS;
2133 }
2134
2135 ieee80211_bss_info_change_notify(sdata, changed);
2136
2137 return 0;
2138 }
2139
2140 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2141 struct net_device *dev,
2142 struct ieee80211_txq_params *params)
2143 {
2144 struct ieee80211_local *local = wiphy_priv(wiphy);
2145 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2146 struct ieee80211_tx_queue_params p;
2147
2148 if (!local->ops->conf_tx)
2149 return -EOPNOTSUPP;
2150
2151 if (local->hw.queues < IEEE80211_NUM_ACS)
2152 return -EOPNOTSUPP;
2153
2154 memset(&p, 0, sizeof(p));
2155 p.aifs = params->aifs;
2156 p.cw_max = params->cwmax;
2157 p.cw_min = params->cwmin;
2158 p.txop = params->txop;
2159
2160 /*
2161 * Setting tx queue params disables u-apsd because it's only
2162 * called in master mode.
2163 */
2164 p.uapsd = false;
2165
2166 sdata->tx_conf[params->ac] = p;
2167 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2168 wiphy_debug(local->hw.wiphy,
2169 "failed to set TX queue parameters for AC %d\n",
2170 params->ac);
2171 return -EINVAL;
2172 }
2173
2174 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2175
2176 return 0;
2177 }
2178
2179 #ifdef CONFIG_PM
2180 static int ieee80211_suspend(struct wiphy *wiphy,
2181 struct cfg80211_wowlan *wowlan)
2182 {
2183 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2184 }
2185
2186 static int ieee80211_resume(struct wiphy *wiphy)
2187 {
2188 return __ieee80211_resume(wiphy_priv(wiphy));
2189 }
2190 #else
2191 #define ieee80211_suspend NULL
2192 #define ieee80211_resume NULL
2193 #endif
2194
2195 static int ieee80211_scan(struct wiphy *wiphy,
2196 struct cfg80211_scan_request *req)
2197 {
2198 struct ieee80211_sub_if_data *sdata;
2199
2200 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2201
2202 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2203 case NL80211_IFTYPE_STATION:
2204 case NL80211_IFTYPE_ADHOC:
2205 case NL80211_IFTYPE_MESH_POINT:
2206 case NL80211_IFTYPE_P2P_CLIENT:
2207 case NL80211_IFTYPE_P2P_DEVICE:
2208 break;
2209 case NL80211_IFTYPE_P2P_GO:
2210 if (sdata->local->ops->hw_scan)
2211 break;
2212 /*
2213 * FIXME: implement NoA while scanning in software,
2214 * for now fall through to allow scanning only when
2215 * beaconing hasn't been configured yet
2216 */
2217 case NL80211_IFTYPE_AP:
2218 /*
2219 * If the scan has been forced (and the driver supports
2220 * forcing), don't care about being beaconing already.
2221 * This will create problems to the attached stations (e.g. all
2222 * the frames sent while scanning on other channel will be
2223 * lost)
2224 */
2225 if (sdata->u.ap.beacon &&
2226 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2227 !(req->flags & NL80211_SCAN_FLAG_AP)))
2228 return -EOPNOTSUPP;
2229 break;
2230 case NL80211_IFTYPE_NAN:
2231 default:
2232 return -EOPNOTSUPP;
2233 }
2234
2235 return ieee80211_request_scan(sdata, req);
2236 }
2237
2238 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2239 {
2240 ieee80211_scan_cancel(wiphy_priv(wiphy));
2241 }
2242
2243 static int
2244 ieee80211_sched_scan_start(struct wiphy *wiphy,
2245 struct net_device *dev,
2246 struct cfg80211_sched_scan_request *req)
2247 {
2248 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2249
2250 if (!sdata->local->ops->sched_scan_start)
2251 return -EOPNOTSUPP;
2252
2253 return ieee80211_request_sched_scan_start(sdata, req);
2254 }
2255
2256 static int
2257 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2258 u64 reqid)
2259 {
2260 struct ieee80211_local *local = wiphy_priv(wiphy);
2261
2262 if (!local->ops->sched_scan_stop)
2263 return -EOPNOTSUPP;
2264
2265 return ieee80211_request_sched_scan_stop(local);
2266 }
2267
2268 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2269 struct cfg80211_auth_request *req)
2270 {
2271 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2272 }
2273
2274 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2275 struct cfg80211_assoc_request *req)
2276 {
2277 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2278 }
2279
2280 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2281 struct cfg80211_deauth_request *req)
2282 {
2283 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2284 }
2285
2286 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2287 struct cfg80211_disassoc_request *req)
2288 {
2289 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2290 }
2291
2292 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2293 struct cfg80211_ibss_params *params)
2294 {
2295 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2296 }
2297
2298 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2299 {
2300 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2301 }
2302
2303 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2304 struct ocb_setup *setup)
2305 {
2306 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2307 }
2308
2309 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2310 {
2311 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2312 }
2313
2314 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2315 int rate[NUM_NL80211_BANDS])
2316 {
2317 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2318
2319 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2320 sizeof(int) * NUM_NL80211_BANDS);
2321
2322 return 0;
2323 }
2324
2325 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2326 {
2327 struct ieee80211_local *local = wiphy_priv(wiphy);
2328 int err;
2329
2330 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2331 ieee80211_check_fast_xmit_all(local);
2332
2333 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2334
2335 if (err) {
2336 ieee80211_check_fast_xmit_all(local);
2337 return err;
2338 }
2339 }
2340
2341 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2342 (changed & WIPHY_PARAM_DYN_ACK)) {
2343 s16 coverage_class;
2344
2345 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2346 wiphy->coverage_class : -1;
2347 err = drv_set_coverage_class(local, coverage_class);
2348
2349 if (err)
2350 return err;
2351 }
2352
2353 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2354 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2355
2356 if (err)
2357 return err;
2358 }
2359
2360 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2361 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2362 return -EINVAL;
2363 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2364 }
2365 if (changed & WIPHY_PARAM_RETRY_LONG) {
2366 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2367 return -EINVAL;
2368 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2369 }
2370 if (changed &
2371 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2372 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2373
2374 return 0;
2375 }
2376
2377 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2378 struct wireless_dev *wdev,
2379 enum nl80211_tx_power_setting type, int mbm)
2380 {
2381 struct ieee80211_local *local = wiphy_priv(wiphy);
2382 struct ieee80211_sub_if_data *sdata;
2383 enum nl80211_tx_power_setting txp_type = type;
2384 bool update_txp_type = false;
2385 bool has_monitor = false;
2386
2387 if (wdev) {
2388 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2389
2390 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2391 sdata = rtnl_dereference(local->monitor_sdata);
2392 if (!sdata)
2393 return -EOPNOTSUPP;
2394 }
2395
2396 switch (type) {
2397 case NL80211_TX_POWER_AUTOMATIC:
2398 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2399 txp_type = NL80211_TX_POWER_LIMITED;
2400 break;
2401 case NL80211_TX_POWER_LIMITED:
2402 case NL80211_TX_POWER_FIXED:
2403 if (mbm < 0 || (mbm % 100))
2404 return -EOPNOTSUPP;
2405 sdata->user_power_level = MBM_TO_DBM(mbm);
2406 break;
2407 }
2408
2409 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2410 update_txp_type = true;
2411 sdata->vif.bss_conf.txpower_type = txp_type;
2412 }
2413
2414 ieee80211_recalc_txpower(sdata, update_txp_type);
2415
2416 return 0;
2417 }
2418
2419 switch (type) {
2420 case NL80211_TX_POWER_AUTOMATIC:
2421 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2422 txp_type = NL80211_TX_POWER_LIMITED;
2423 break;
2424 case NL80211_TX_POWER_LIMITED:
2425 case NL80211_TX_POWER_FIXED:
2426 if (mbm < 0 || (mbm % 100))
2427 return -EOPNOTSUPP;
2428 local->user_power_level = MBM_TO_DBM(mbm);
2429 break;
2430 }
2431
2432 mutex_lock(&local->iflist_mtx);
2433 list_for_each_entry(sdata, &local->interfaces, list) {
2434 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2435 has_monitor = true;
2436 continue;
2437 }
2438 sdata->user_power_level = local->user_power_level;
2439 if (txp_type != sdata->vif.bss_conf.txpower_type)
2440 update_txp_type = true;
2441 sdata->vif.bss_conf.txpower_type = txp_type;
2442 }
2443 list_for_each_entry(sdata, &local->interfaces, list) {
2444 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2445 continue;
2446 ieee80211_recalc_txpower(sdata, update_txp_type);
2447 }
2448 mutex_unlock(&local->iflist_mtx);
2449
2450 if (has_monitor) {
2451 sdata = rtnl_dereference(local->monitor_sdata);
2452 if (sdata) {
2453 sdata->user_power_level = local->user_power_level;
2454 if (txp_type != sdata->vif.bss_conf.txpower_type)
2455 update_txp_type = true;
2456 sdata->vif.bss_conf.txpower_type = txp_type;
2457
2458 ieee80211_recalc_txpower(sdata, update_txp_type);
2459 }
2460 }
2461
2462 return 0;
2463 }
2464
2465 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2466 struct wireless_dev *wdev,
2467 int *dbm)
2468 {
2469 struct ieee80211_local *local = wiphy_priv(wiphy);
2470 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2471
2472 if (local->ops->get_txpower)
2473 return drv_get_txpower(local, sdata, dbm);
2474
2475 if (!local->use_chanctx)
2476 *dbm = local->hw.conf.power_level;
2477 else
2478 *dbm = sdata->vif.bss_conf.txpower;
2479
2480 return 0;
2481 }
2482
2483 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2484 const u8 *addr)
2485 {
2486 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2487
2488 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2489
2490 return 0;
2491 }
2492
2493 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2494 {
2495 struct ieee80211_local *local = wiphy_priv(wiphy);
2496
2497 drv_rfkill_poll(local);
2498 }
2499
2500 #ifdef CONFIG_NL80211_TESTMODE
2501 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2502 struct wireless_dev *wdev,
2503 void *data, int len)
2504 {
2505 struct ieee80211_local *local = wiphy_priv(wiphy);
2506 struct ieee80211_vif *vif = NULL;
2507
2508 if (!local->ops->testmode_cmd)
2509 return -EOPNOTSUPP;
2510
2511 if (wdev) {
2512 struct ieee80211_sub_if_data *sdata;
2513
2514 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2515 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2516 vif = &sdata->vif;
2517 }
2518
2519 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2520 }
2521
2522 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2523 struct sk_buff *skb,
2524 struct netlink_callback *cb,
2525 void *data, int len)
2526 {
2527 struct ieee80211_local *local = wiphy_priv(wiphy);
2528
2529 if (!local->ops->testmode_dump)
2530 return -EOPNOTSUPP;
2531
2532 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2533 }
2534 #endif
2535
2536 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2537 enum ieee80211_smps_mode smps_mode)
2538 {
2539 struct sta_info *sta;
2540 enum ieee80211_smps_mode old_req;
2541
2542 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2543 return -EINVAL;
2544
2545 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2546 return 0;
2547
2548 old_req = sdata->u.ap.req_smps;
2549 sdata->u.ap.req_smps = smps_mode;
2550
2551 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2552 if (old_req == smps_mode ||
2553 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2554 return 0;
2555
2556 ht_dbg(sdata,
2557 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2558 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2559
2560 mutex_lock(&sdata->local->sta_mtx);
2561 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2562 /*
2563 * Only stations associated to our AP and
2564 * associated VLANs
2565 */
2566 if (sta->sdata->bss != &sdata->u.ap)
2567 continue;
2568
2569 /* This station doesn't support MIMO - skip it */
2570 if (sta_info_tx_streams(sta) == 1)
2571 continue;
2572
2573 /*
2574 * Don't wake up a STA just to send the action frame
2575 * unless we are getting more restrictive.
2576 */
2577 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2578 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2579 smps_mode)) {
2580 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2581 sta->sta.addr);
2582 continue;
2583 }
2584
2585 /*
2586 * If the STA is not authorized, wait until it gets
2587 * authorized and the action frame will be sent then.
2588 */
2589 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2590 continue;
2591
2592 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2593 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2594 sdata->vif.bss_conf.bssid);
2595 }
2596 mutex_unlock(&sdata->local->sta_mtx);
2597
2598 sdata->smps_mode = smps_mode;
2599 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2600
2601 return 0;
2602 }
2603
2604 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2605 enum ieee80211_smps_mode smps_mode)
2606 {
2607 const u8 *ap;
2608 enum ieee80211_smps_mode old_req;
2609 int err;
2610 struct sta_info *sta;
2611 bool tdls_peer_found = false;
2612
2613 lockdep_assert_held(&sdata->wdev.mtx);
2614
2615 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2616 return -EINVAL;
2617
2618 old_req = sdata->u.mgd.req_smps;
2619 sdata->u.mgd.req_smps = smps_mode;
2620
2621 if (old_req == smps_mode &&
2622 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2623 return 0;
2624
2625 /*
2626 * If not associated, or current association is not an HT
2627 * association, there's no need to do anything, just store
2628 * the new value until we associate.
2629 */
2630 if (!sdata->u.mgd.associated ||
2631 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2632 return 0;
2633
2634 ap = sdata->u.mgd.associated->bssid;
2635
2636 rcu_read_lock();
2637 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2638 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2639 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2640 continue;
2641
2642 tdls_peer_found = true;
2643 break;
2644 }
2645 rcu_read_unlock();
2646
2647 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2648 if (tdls_peer_found || !sdata->u.mgd.powersave)
2649 smps_mode = IEEE80211_SMPS_OFF;
2650 else
2651 smps_mode = IEEE80211_SMPS_DYNAMIC;
2652 }
2653
2654 /* send SM PS frame to AP */
2655 err = ieee80211_send_smps_action(sdata, smps_mode,
2656 ap, ap);
2657 if (err)
2658 sdata->u.mgd.req_smps = old_req;
2659 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2660 ieee80211_teardown_tdls_peers(sdata);
2661
2662 return err;
2663 }
2664
2665 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2666 bool enabled, int timeout)
2667 {
2668 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2669 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2670
2671 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2672 return -EOPNOTSUPP;
2673
2674 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2675 return -EOPNOTSUPP;
2676
2677 if (enabled == sdata->u.mgd.powersave &&
2678 timeout == local->dynamic_ps_forced_timeout)
2679 return 0;
2680
2681 sdata->u.mgd.powersave = enabled;
2682 local->dynamic_ps_forced_timeout = timeout;
2683
2684 /* no change, but if automatic follow powersave */
2685 sdata_lock(sdata);
2686 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2687 sdata_unlock(sdata);
2688
2689 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2690 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2691
2692 ieee80211_recalc_ps(local);
2693 ieee80211_recalc_ps_vif(sdata);
2694
2695 return 0;
2696 }
2697
2698 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2699 struct net_device *dev,
2700 s32 rssi_thold, u32 rssi_hyst)
2701 {
2702 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2703 struct ieee80211_vif *vif = &sdata->vif;
2704 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2705
2706 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2707 rssi_hyst == bss_conf->cqm_rssi_hyst)
2708 return 0;
2709
2710 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2711 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2712 return -EOPNOTSUPP;
2713
2714 bss_conf->cqm_rssi_thold = rssi_thold;
2715 bss_conf->cqm_rssi_hyst = rssi_hyst;
2716 bss_conf->cqm_rssi_low = 0;
2717 bss_conf->cqm_rssi_high = 0;
2718 sdata->u.mgd.last_cqm_event_signal = 0;
2719
2720 /* tell the driver upon association, unless already associated */
2721 if (sdata->u.mgd.associated &&
2722 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2723 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2724
2725 return 0;
2726 }
2727
2728 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2729 struct net_device *dev,
2730 s32 rssi_low, s32 rssi_high)
2731 {
2732 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2733 struct ieee80211_vif *vif = &sdata->vif;
2734 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2735
2736 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2737 return -EOPNOTSUPP;
2738
2739 bss_conf->cqm_rssi_low = rssi_low;
2740 bss_conf->cqm_rssi_high = rssi_high;
2741 bss_conf->cqm_rssi_thold = 0;
2742 bss_conf->cqm_rssi_hyst = 0;
2743 sdata->u.mgd.last_cqm_event_signal = 0;
2744
2745 /* tell the driver upon association, unless already associated */
2746 if (sdata->u.mgd.associated &&
2747 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2748 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2749
2750 return 0;
2751 }
2752
2753 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2754 struct net_device *dev,
2755 const u8 *addr,
2756 const struct cfg80211_bitrate_mask *mask)
2757 {
2758 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2759 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2760 int i, ret;
2761
2762 if (!ieee80211_sdata_running(sdata))
2763 return -ENETDOWN;
2764
2765 /*
2766 * If active validate the setting and reject it if it doesn't leave
2767 * at least one basic rate usable, since we really have to be able
2768 * to send something, and if we're an AP we have to be able to do
2769 * so at a basic rate so that all clients can receive it.
2770 */
2771 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2772 sdata->vif.bss_conf.chandef.chan) {
2773 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2774 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2775
2776 if (!(mask->control[band].legacy & basic_rates))
2777 return -EINVAL;
2778 }
2779
2780 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2781 ret = drv_set_bitrate_mask(local, sdata, mask);
2782 if (ret)
2783 return ret;
2784 }
2785
2786 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2787 struct ieee80211_supported_band *sband = wiphy->bands[i];
2788 int j;
2789
2790 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2791 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2792 sizeof(mask->control[i].ht_mcs));
2793 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2794 mask->control[i].vht_mcs,
2795 sizeof(mask->control[i].vht_mcs));
2796
2797 sdata->rc_has_mcs_mask[i] = false;
2798 sdata->rc_has_vht_mcs_mask[i] = false;
2799 if (!sband)
2800 continue;
2801
2802 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2803 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2804 sdata->rc_has_mcs_mask[i] = true;
2805 break;
2806 }
2807 }
2808
2809 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2810 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2811 sdata->rc_has_vht_mcs_mask[i] = true;
2812 break;
2813 }
2814 }
2815 }
2816
2817 return 0;
2818 }
2819
2820 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2821 struct net_device *dev,
2822 struct cfg80211_chan_def *chandef,
2823 u32 cac_time_ms)
2824 {
2825 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2826 struct ieee80211_local *local = sdata->local;
2827 int err;
2828
2829 mutex_lock(&local->mtx);
2830 if (!list_empty(&local->roc_list) || local->scanning) {
2831 err = -EBUSY;
2832 goto out_unlock;
2833 }
2834
2835 /* whatever, but channel contexts should not complain about that one */
2836 sdata->smps_mode = IEEE80211_SMPS_OFF;
2837 sdata->needed_rx_chains = local->rx_chains;
2838
2839 err = ieee80211_vif_use_channel(sdata, chandef,
2840 IEEE80211_CHANCTX_SHARED);
2841 if (err)
2842 goto out_unlock;
2843
2844 ieee80211_queue_delayed_work(&sdata->local->hw,
2845 &sdata->dfs_cac_timer_work,
2846 msecs_to_jiffies(cac_time_ms));
2847
2848 out_unlock:
2849 mutex_unlock(&local->mtx);
2850 return err;
2851 }
2852
2853 static struct cfg80211_beacon_data *
2854 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2855 {
2856 struct cfg80211_beacon_data *new_beacon;
2857 u8 *pos;
2858 int len;
2859
2860 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2861 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2862 beacon->probe_resp_len;
2863
2864 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2865 if (!new_beacon)
2866 return NULL;
2867
2868 pos = (u8 *)(new_beacon + 1);
2869 if (beacon->head_len) {
2870 new_beacon->head_len = beacon->head_len;
2871 new_beacon->head = pos;
2872 memcpy(pos, beacon->head, beacon->head_len);
2873 pos += beacon->head_len;
2874 }
2875 if (beacon->tail_len) {
2876 new_beacon->tail_len = beacon->tail_len;
2877 new_beacon->tail = pos;
2878 memcpy(pos, beacon->tail, beacon->tail_len);
2879 pos += beacon->tail_len;
2880 }
2881 if (beacon->beacon_ies_len) {
2882 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2883 new_beacon->beacon_ies = pos;
2884 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2885 pos += beacon->beacon_ies_len;
2886 }
2887 if (beacon->proberesp_ies_len) {
2888 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2889 new_beacon->proberesp_ies = pos;
2890 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2891 pos += beacon->proberesp_ies_len;
2892 }
2893 if (beacon->assocresp_ies_len) {
2894 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2895 new_beacon->assocresp_ies = pos;
2896 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2897 pos += beacon->assocresp_ies_len;
2898 }
2899 if (beacon->probe_resp_len) {
2900 new_beacon->probe_resp_len = beacon->probe_resp_len;
2901 new_beacon->probe_resp = pos;
2902 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2903 pos += beacon->probe_resp_len;
2904 }
2905
2906 return new_beacon;
2907 }
2908
2909 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2910 {
2911 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2912
2913 ieee80211_queue_work(&sdata->local->hw,
2914 &sdata->csa_finalize_work);
2915 }
2916 EXPORT_SYMBOL(ieee80211_csa_finish);
2917
2918 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2919 u32 *changed)
2920 {
2921 int err;
2922
2923 switch (sdata->vif.type) {
2924 case NL80211_IFTYPE_AP:
2925 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2926 NULL);
2927 kfree(sdata->u.ap.next_beacon);
2928 sdata->u.ap.next_beacon = NULL;
2929
2930 if (err < 0)
2931 return err;
2932 *changed |= err;
2933 break;
2934 case NL80211_IFTYPE_ADHOC:
2935 err = ieee80211_ibss_finish_csa(sdata);
2936 if (err < 0)
2937 return err;
2938 *changed |= err;
2939 break;
2940 #ifdef CONFIG_MAC80211_MESH
2941 case NL80211_IFTYPE_MESH_POINT:
2942 err = ieee80211_mesh_finish_csa(sdata);
2943 if (err < 0)
2944 return err;
2945 *changed |= err;
2946 break;
2947 #endif
2948 default:
2949 WARN_ON(1);
2950 return -EINVAL;
2951 }
2952
2953 return 0;
2954 }
2955
2956 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2957 {
2958 struct ieee80211_local *local = sdata->local;
2959 u32 changed = 0;
2960 int err;
2961
2962 sdata_assert_lock(sdata);
2963 lockdep_assert_held(&local->mtx);
2964 lockdep_assert_held(&local->chanctx_mtx);
2965
2966 /*
2967 * using reservation isn't immediate as it may be deferred until later
2968 * with multi-vif. once reservation is complete it will re-schedule the
2969 * work with no reserved_chanctx so verify chandef to check if it
2970 * completed successfully
2971 */
2972
2973 if (sdata->reserved_chanctx) {
2974 /*
2975 * with multi-vif csa driver may call ieee80211_csa_finish()
2976 * many times while waiting for other interfaces to use their
2977 * reservations
2978 */
2979 if (sdata->reserved_ready)
2980 return 0;
2981
2982 return ieee80211_vif_use_reserved_context(sdata);
2983 }
2984
2985 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2986 &sdata->csa_chandef))
2987 return -EINVAL;
2988
2989 sdata->vif.csa_active = false;
2990
2991 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2992 if (err)
2993 return err;
2994
2995 ieee80211_bss_info_change_notify(sdata, changed);
2996
2997 if (sdata->csa_block_tx) {
2998 ieee80211_wake_vif_queues(local, sdata,
2999 IEEE80211_QUEUE_STOP_REASON_CSA);
3000 sdata->csa_block_tx = false;
3001 }
3002
3003 err = drv_post_channel_switch(sdata);
3004 if (err)
3005 return err;
3006
3007 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3008
3009 return 0;
3010 }
3011
3012 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3013 {
3014 if (__ieee80211_csa_finalize(sdata)) {
3015 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3016 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3017 GFP_KERNEL);
3018 }
3019 }
3020
3021 void ieee80211_csa_finalize_work(struct work_struct *work)
3022 {
3023 struct ieee80211_sub_if_data *sdata =
3024 container_of(work, struct ieee80211_sub_if_data,
3025 csa_finalize_work);
3026 struct ieee80211_local *local = sdata->local;
3027
3028 sdata_lock(sdata);
3029 mutex_lock(&local->mtx);
3030 mutex_lock(&local->chanctx_mtx);
3031
3032 /* AP might have been stopped while waiting for the lock. */
3033 if (!sdata->vif.csa_active)
3034 goto unlock;
3035
3036 if (!ieee80211_sdata_running(sdata))
3037 goto unlock;
3038
3039 ieee80211_csa_finalize(sdata);
3040
3041 unlock:
3042 mutex_unlock(&local->chanctx_mtx);
3043 mutex_unlock(&local->mtx);
3044 sdata_unlock(sdata);
3045 }
3046
3047 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3048 struct cfg80211_csa_settings *params,
3049 u32 *changed)
3050 {
3051 struct ieee80211_csa_settings csa = {};
3052 int err;
3053
3054 switch (sdata->vif.type) {
3055 case NL80211_IFTYPE_AP:
3056 sdata->u.ap.next_beacon =
3057 cfg80211_beacon_dup(&params->beacon_after);
3058 if (!sdata->u.ap.next_beacon)
3059 return -ENOMEM;
3060
3061 /*
3062 * With a count of 0, we don't have to wait for any
3063 * TBTT before switching, so complete the CSA
3064 * immediately. In theory, with a count == 1 we
3065 * should delay the switch until just before the next
3066 * TBTT, but that would complicate things so we switch
3067 * immediately too. If we would delay the switch
3068 * until the next TBTT, we would have to set the probe
3069 * response here.
3070 *
3071 * TODO: A channel switch with count <= 1 without
3072 * sending a CSA action frame is kind of useless,
3073 * because the clients won't know we're changing
3074 * channels. The action frame must be implemented
3075 * either here or in the userspace.
3076 */
3077 if (params->count <= 1)
3078 break;
3079
3080 if ((params->n_counter_offsets_beacon >
3081 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3082 (params->n_counter_offsets_presp >
3083 IEEE80211_MAX_CSA_COUNTERS_NUM))
3084 return -EINVAL;
3085
3086 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3087 csa.counter_offsets_presp = params->counter_offsets_presp;
3088 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3089 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3090 csa.count = params->count;
3091
3092 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3093 if (err < 0) {
3094 kfree(sdata->u.ap.next_beacon);
3095 return err;
3096 }
3097 *changed |= err;
3098
3099 break;
3100 case NL80211_IFTYPE_ADHOC:
3101 if (!sdata->vif.bss_conf.ibss_joined)
3102 return -EINVAL;
3103
3104 if (params->chandef.width != sdata->u.ibss.chandef.width)
3105 return -EINVAL;
3106
3107 switch (params->chandef.width) {
3108 case NL80211_CHAN_WIDTH_40:
3109 if (cfg80211_get_chandef_type(&params->chandef) !=
3110 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3111 return -EINVAL;
3112 case NL80211_CHAN_WIDTH_5:
3113 case NL80211_CHAN_WIDTH_10:
3114 case NL80211_CHAN_WIDTH_20_NOHT:
3115 case NL80211_CHAN_WIDTH_20:
3116 break;
3117 default:
3118 return -EINVAL;
3119 }
3120
3121 /* changes into another band are not supported */
3122 if (sdata->u.ibss.chandef.chan->band !=
3123 params->chandef.chan->band)
3124 return -EINVAL;
3125
3126 /* see comments in the NL80211_IFTYPE_AP block */
3127 if (params->count > 1) {
3128 err = ieee80211_ibss_csa_beacon(sdata, params);
3129 if (err < 0)
3130 return err;
3131 *changed |= err;
3132 }
3133
3134 ieee80211_send_action_csa(sdata, params);
3135
3136 break;
3137 #ifdef CONFIG_MAC80211_MESH
3138 case NL80211_IFTYPE_MESH_POINT: {
3139 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3140
3141 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3142 return -EINVAL;
3143
3144 /* changes into another band are not supported */
3145 if (sdata->vif.bss_conf.chandef.chan->band !=
3146 params->chandef.chan->band)
3147 return -EINVAL;
3148
3149 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3150 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3151 if (!ifmsh->pre_value)
3152 ifmsh->pre_value = 1;
3153 else
3154 ifmsh->pre_value++;
3155 }
3156
3157 /* see comments in the NL80211_IFTYPE_AP block */
3158 if (params->count > 1) {
3159 err = ieee80211_mesh_csa_beacon(sdata, params);
3160 if (err < 0) {
3161 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3162 return err;
3163 }
3164 *changed |= err;
3165 }
3166
3167 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3168 ieee80211_send_action_csa(sdata, params);
3169
3170 break;
3171 }
3172 #endif
3173 default:
3174 return -EOPNOTSUPP;
3175 }
3176
3177 return 0;
3178 }
3179
3180 static int
3181 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3182 struct cfg80211_csa_settings *params)
3183 {
3184 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3185 struct ieee80211_local *local = sdata->local;
3186 struct ieee80211_channel_switch ch_switch;
3187 struct ieee80211_chanctx_conf *conf;
3188 struct ieee80211_chanctx *chanctx;
3189 u32 changed = 0;
3190 int err;
3191
3192 sdata_assert_lock(sdata);
3193 lockdep_assert_held(&local->mtx);
3194
3195 if (!list_empty(&local->roc_list) || local->scanning)
3196 return -EBUSY;
3197
3198 if (sdata->wdev.cac_started)
3199 return -EBUSY;
3200
3201 if (cfg80211_chandef_identical(&params->chandef,
3202 &sdata->vif.bss_conf.chandef))
3203 return -EINVAL;
3204
3205 /* don't allow another channel switch if one is already active. */
3206 if (sdata->vif.csa_active)
3207 return -EBUSY;
3208
3209 mutex_lock(&local->chanctx_mtx);
3210 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3211 lockdep_is_held(&local->chanctx_mtx));
3212 if (!conf) {
3213 err = -EBUSY;
3214 goto out;
3215 }
3216
3217 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3218
3219 ch_switch.timestamp = 0;
3220 ch_switch.device_timestamp = 0;
3221 ch_switch.block_tx = params->block_tx;
3222 ch_switch.chandef = params->chandef;
3223 ch_switch.count = params->count;
3224
3225 err = drv_pre_channel_switch(sdata, &ch_switch);
3226 if (err)
3227 goto out;
3228
3229 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3230 chanctx->mode,
3231 params->radar_required);
3232 if (err)
3233 goto out;
3234
3235 /* if reservation is invalid then this will fail */
3236 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3237 if (err) {
3238 ieee80211_vif_unreserve_chanctx(sdata);
3239 goto out;
3240 }
3241
3242 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3243 if (err) {
3244 ieee80211_vif_unreserve_chanctx(sdata);
3245 goto out;
3246 }
3247
3248 sdata->csa_chandef = params->chandef;
3249 sdata->csa_block_tx = params->block_tx;
3250 sdata->vif.csa_active = true;
3251
3252 if (sdata->csa_block_tx)
3253 ieee80211_stop_vif_queues(local, sdata,
3254 IEEE80211_QUEUE_STOP_REASON_CSA);
3255
3256 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3257 params->count);
3258
3259 if (changed) {
3260 ieee80211_bss_info_change_notify(sdata, changed);
3261 drv_channel_switch_beacon(sdata, &params->chandef);
3262 } else {
3263 /* if the beacon didn't change, we can finalize immediately */
3264 ieee80211_csa_finalize(sdata);
3265 }
3266
3267 out:
3268 mutex_unlock(&local->chanctx_mtx);
3269 return err;
3270 }
3271
3272 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3273 struct cfg80211_csa_settings *params)
3274 {
3275 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3276 struct ieee80211_local *local = sdata->local;
3277 int err;
3278
3279 mutex_lock(&local->mtx);
3280 err = __ieee80211_channel_switch(wiphy, dev, params);
3281 mutex_unlock(&local->mtx);
3282
3283 return err;
3284 }
3285
3286 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3287 {
3288 lockdep_assert_held(&local->mtx);
3289
3290 local->roc_cookie_counter++;
3291
3292 /* wow, you wrapped 64 bits ... more likely a bug */
3293 if (WARN_ON(local->roc_cookie_counter == 0))
3294 local->roc_cookie_counter++;
3295
3296 return local->roc_cookie_counter;
3297 }
3298
3299 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3300 u64 *cookie, gfp_t gfp)
3301 {
3302 unsigned long spin_flags;
3303 struct sk_buff *ack_skb;
3304 int id;
3305
3306 ack_skb = skb_copy(skb, gfp);
3307 if (!ack_skb)
3308 return -ENOMEM;
3309
3310 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3311 id = idr_alloc(&local->ack_status_frames, ack_skb,
3312 1, 0x10000, GFP_ATOMIC);
3313 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3314
3315 if (id < 0) {
3316 kfree_skb(ack_skb);
3317 return -ENOMEM;
3318 }
3319
3320 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3321
3322 *cookie = ieee80211_mgmt_tx_cookie(local);
3323 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3324
3325 return 0;
3326 }
3327
3328 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3329 struct wireless_dev *wdev,
3330 u16 frame_type, bool reg)
3331 {
3332 struct ieee80211_local *local = wiphy_priv(wiphy);
3333 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3334
3335 switch (frame_type) {
3336 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3337 if (reg) {
3338 local->probe_req_reg++;
3339 sdata->vif.probe_req_reg++;
3340 } else {
3341 if (local->probe_req_reg)
3342 local->probe_req_reg--;
3343
3344 if (sdata->vif.probe_req_reg)
3345 sdata->vif.probe_req_reg--;
3346 }
3347
3348 if (!local->open_count)
3349 break;
3350
3351 if (sdata->vif.probe_req_reg == 1)
3352 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3353 FIF_PROBE_REQ);
3354 else if (sdata->vif.probe_req_reg == 0)
3355 drv_config_iface_filter(local, sdata, 0,
3356 FIF_PROBE_REQ);
3357
3358 ieee80211_configure_filter(local);
3359 break;
3360 default:
3361 break;
3362 }
3363 }
3364
3365 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3366 {
3367 struct ieee80211_local *local = wiphy_priv(wiphy);
3368
3369 if (local->started)
3370 return -EOPNOTSUPP;
3371
3372 return drv_set_antenna(local, tx_ant, rx_ant);
3373 }
3374
3375 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3376 {
3377 struct ieee80211_local *local = wiphy_priv(wiphy);
3378
3379 return drv_get_antenna(local, tx_ant, rx_ant);
3380 }
3381
3382 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3383 struct net_device *dev,
3384 struct cfg80211_gtk_rekey_data *data)
3385 {
3386 struct ieee80211_local *local = wiphy_priv(wiphy);
3387 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3388
3389 if (!local->ops->set_rekey_data)
3390 return -EOPNOTSUPP;
3391
3392 drv_set_rekey_data(local, sdata, data);
3393
3394 return 0;
3395 }
3396
3397 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3398 const u8 *peer, u64 *cookie)
3399 {
3400 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3401 struct ieee80211_local *local = sdata->local;
3402 struct ieee80211_qos_hdr *nullfunc;
3403 struct sk_buff *skb;
3404 int size = sizeof(*nullfunc);
3405 __le16 fc;
3406 bool qos;
3407 struct ieee80211_tx_info *info;
3408 struct sta_info *sta;
3409 struct ieee80211_chanctx_conf *chanctx_conf;
3410 enum nl80211_band band;
3411 int ret;
3412
3413 /* the lock is needed to assign the cookie later */
3414 mutex_lock(&local->mtx);
3415
3416 rcu_read_lock();
3417 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3418 if (WARN_ON(!chanctx_conf)) {
3419 ret = -EINVAL;
3420 goto unlock;
3421 }
3422 band = chanctx_conf->def.chan->band;
3423 sta = sta_info_get_bss(sdata, peer);
3424 if (sta) {
3425 qos = sta->sta.wme;
3426 } else {
3427 ret = -ENOLINK;
3428 goto unlock;
3429 }
3430
3431 if (qos) {
3432 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3433 IEEE80211_STYPE_QOS_NULLFUNC |
3434 IEEE80211_FCTL_FROMDS);
3435 } else {
3436 size -= 2;
3437 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3438 IEEE80211_STYPE_NULLFUNC |
3439 IEEE80211_FCTL_FROMDS);
3440 }
3441
3442 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3443 if (!skb) {
3444 ret = -ENOMEM;
3445 goto unlock;
3446 }
3447
3448 skb->dev = dev;
3449
3450 skb_reserve(skb, local->hw.extra_tx_headroom);
3451
3452 nullfunc = skb_put(skb, size);
3453 nullfunc->frame_control = fc;
3454 nullfunc->duration_id = 0;
3455 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3456 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3457 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3458 nullfunc->seq_ctrl = 0;
3459
3460 info = IEEE80211_SKB_CB(skb);
3461
3462 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3463 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3464 info->band = band;
3465
3466 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3467 skb->priority = 7;
3468 if (qos)
3469 nullfunc->qos_ctrl = cpu_to_le16(7);
3470
3471 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3472 if (ret) {
3473 kfree_skb(skb);
3474 goto unlock;
3475 }
3476
3477 local_bh_disable();
3478 ieee80211_xmit(sdata, sta, skb);
3479 local_bh_enable();
3480
3481 ret = 0;
3482 unlock:
3483 rcu_read_unlock();
3484 mutex_unlock(&local->mtx);
3485
3486 return ret;
3487 }
3488
3489 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3490 struct wireless_dev *wdev,
3491 struct cfg80211_chan_def *chandef)
3492 {
3493 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3494 struct ieee80211_local *local = wiphy_priv(wiphy);
3495 struct ieee80211_chanctx_conf *chanctx_conf;
3496 int ret = -ENODATA;
3497
3498 rcu_read_lock();
3499 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3500 if (chanctx_conf) {
3501 *chandef = sdata->vif.bss_conf.chandef;
3502 ret = 0;
3503 } else if (local->open_count > 0 &&
3504 local->open_count == local->monitors &&
3505 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3506 if (local->use_chanctx)
3507 *chandef = local->monitor_chandef;
3508 else
3509 *chandef = local->_oper_chandef;
3510 ret = 0;
3511 }
3512 rcu_read_unlock();
3513
3514 return ret;
3515 }
3516
3517 #ifdef CONFIG_PM
3518 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3519 {
3520 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3521 }
3522 #endif
3523
3524 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3525 struct net_device *dev,
3526 struct cfg80211_qos_map *qos_map)
3527 {
3528 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3529 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3530
3531 if (qos_map) {
3532 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3533 if (!new_qos_map)
3534 return -ENOMEM;
3535 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3536 } else {
3537 /* A NULL qos_map was passed to disable QoS mapping */
3538 new_qos_map = NULL;
3539 }
3540
3541 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3542 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3543 if (old_qos_map)
3544 kfree_rcu(old_qos_map, rcu_head);
3545
3546 return 0;
3547 }
3548
3549 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3550 struct net_device *dev,
3551 struct cfg80211_chan_def *chandef)
3552 {
3553 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3554 int ret;
3555 u32 changed = 0;
3556
3557 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3558 if (ret == 0)
3559 ieee80211_bss_info_change_notify(sdata, changed);
3560
3561 return ret;
3562 }
3563
3564 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3565 u8 tsid, const u8 *peer, u8 up,
3566 u16 admitted_time)
3567 {
3568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3569 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3570 int ac = ieee802_1d_to_ac[up];
3571
3572 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3573 return -EOPNOTSUPP;
3574
3575 if (!(sdata->wmm_acm & BIT(up)))
3576 return -EINVAL;
3577
3578 if (ifmgd->tx_tspec[ac].admitted_time)
3579 return -EBUSY;
3580
3581 if (admitted_time) {
3582 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3583 ifmgd->tx_tspec[ac].tsid = tsid;
3584 ifmgd->tx_tspec[ac].up = up;
3585 }
3586
3587 return 0;
3588 }
3589
3590 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3591 u8 tsid, const u8 *peer)
3592 {
3593 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3594 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3595 struct ieee80211_local *local = wiphy_priv(wiphy);
3596 int ac;
3597
3598 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3599 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3600
3601 /* skip unused entries */
3602 if (!tx_tspec->admitted_time)
3603 continue;
3604
3605 if (tx_tspec->tsid != tsid)
3606 continue;
3607
3608 /* due to this new packets will be reassigned to non-ACM ACs */
3609 tx_tspec->up = -1;
3610
3611 /* Make sure that all packets have been sent to avoid to
3612 * restore the QoS params on packets that are still on the
3613 * queues.
3614 */
3615 synchronize_net();
3616 ieee80211_flush_queues(local, sdata, false);
3617
3618 /* restore the normal QoS parameters
3619 * (unconditionally to avoid races)
3620 */
3621 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3622 tx_tspec->downgraded = false;
3623 ieee80211_sta_handle_tspec_ac_params(sdata);
3624
3625 /* finally clear all the data */
3626 memset(tx_tspec, 0, sizeof(*tx_tspec));
3627
3628 return 0;
3629 }
3630
3631 return -ENOENT;
3632 }
3633
3634 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3635 u8 inst_id,
3636 enum nl80211_nan_func_term_reason reason,
3637 gfp_t gfp)
3638 {
3639 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3640 struct cfg80211_nan_func *func;
3641 u64 cookie;
3642
3643 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3644 return;
3645
3646 spin_lock_bh(&sdata->u.nan.func_lock);
3647
3648 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3649 if (WARN_ON(!func)) {
3650 spin_unlock_bh(&sdata->u.nan.func_lock);
3651 return;
3652 }
3653
3654 cookie = func->cookie;
3655 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3656
3657 spin_unlock_bh(&sdata->u.nan.func_lock);
3658
3659 cfg80211_free_nan_func(func);
3660
3661 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3662 reason, cookie, gfp);
3663 }
3664 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3665
3666 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3667 struct cfg80211_nan_match_params *match,
3668 gfp_t gfp)
3669 {
3670 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3671 struct cfg80211_nan_func *func;
3672
3673 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3674 return;
3675
3676 spin_lock_bh(&sdata->u.nan.func_lock);
3677
3678 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3679 if (WARN_ON(!func)) {
3680 spin_unlock_bh(&sdata->u.nan.func_lock);
3681 return;
3682 }
3683 match->cookie = func->cookie;
3684
3685 spin_unlock_bh(&sdata->u.nan.func_lock);
3686
3687 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3688 }
3689 EXPORT_SYMBOL(ieee80211_nan_func_match);
3690
3691 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3692 struct net_device *dev,
3693 const bool enabled)
3694 {
3695 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3696
3697 sdata->u.ap.multicast_to_unicast = enabled;
3698
3699 return 0;
3700 }
3701
3702 const struct cfg80211_ops mac80211_config_ops = {
3703 .add_virtual_intf = ieee80211_add_iface,
3704 .del_virtual_intf = ieee80211_del_iface,
3705 .change_virtual_intf = ieee80211_change_iface,
3706 .start_p2p_device = ieee80211_start_p2p_device,
3707 .stop_p2p_device = ieee80211_stop_p2p_device,
3708 .add_key = ieee80211_add_key,
3709 .del_key = ieee80211_del_key,
3710 .get_key = ieee80211_get_key,
3711 .set_default_key = ieee80211_config_default_key,
3712 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3713 .start_ap = ieee80211_start_ap,
3714 .change_beacon = ieee80211_change_beacon,
3715 .stop_ap = ieee80211_stop_ap,
3716 .add_station = ieee80211_add_station,
3717 .del_station = ieee80211_del_station,
3718 .change_station = ieee80211_change_station,
3719 .get_station = ieee80211_get_station,
3720 .dump_station = ieee80211_dump_station,
3721 .dump_survey = ieee80211_dump_survey,
3722 #ifdef CONFIG_MAC80211_MESH
3723 .add_mpath = ieee80211_add_mpath,
3724 .del_mpath = ieee80211_del_mpath,
3725 .change_mpath = ieee80211_change_mpath,
3726 .get_mpath = ieee80211_get_mpath,
3727 .dump_mpath = ieee80211_dump_mpath,
3728 .get_mpp = ieee80211_get_mpp,
3729 .dump_mpp = ieee80211_dump_mpp,
3730 .update_mesh_config = ieee80211_update_mesh_config,
3731 .get_mesh_config = ieee80211_get_mesh_config,
3732 .join_mesh = ieee80211_join_mesh,
3733 .leave_mesh = ieee80211_leave_mesh,
3734 #endif
3735 .join_ocb = ieee80211_join_ocb,
3736 .leave_ocb = ieee80211_leave_ocb,
3737 .change_bss = ieee80211_change_bss,
3738 .set_txq_params = ieee80211_set_txq_params,
3739 .set_monitor_channel = ieee80211_set_monitor_channel,
3740 .suspend = ieee80211_suspend,
3741 .resume = ieee80211_resume,
3742 .scan = ieee80211_scan,
3743 .abort_scan = ieee80211_abort_scan,
3744 .sched_scan_start = ieee80211_sched_scan_start,
3745 .sched_scan_stop = ieee80211_sched_scan_stop,
3746 .auth = ieee80211_auth,
3747 .assoc = ieee80211_assoc,
3748 .deauth = ieee80211_deauth,
3749 .disassoc = ieee80211_disassoc,
3750 .join_ibss = ieee80211_join_ibss,
3751 .leave_ibss = ieee80211_leave_ibss,
3752 .set_mcast_rate = ieee80211_set_mcast_rate,
3753 .set_wiphy_params = ieee80211_set_wiphy_params,
3754 .set_tx_power = ieee80211_set_tx_power,
3755 .get_tx_power = ieee80211_get_tx_power,
3756 .set_wds_peer = ieee80211_set_wds_peer,
3757 .rfkill_poll = ieee80211_rfkill_poll,
3758 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3759 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3760 .set_power_mgmt = ieee80211_set_power_mgmt,
3761 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3762 .remain_on_channel = ieee80211_remain_on_channel,
3763 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3764 .mgmt_tx = ieee80211_mgmt_tx,
3765 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3766 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3767 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
3768 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3769 .set_antenna = ieee80211_set_antenna,
3770 .get_antenna = ieee80211_get_antenna,
3771 .set_rekey_data = ieee80211_set_rekey_data,
3772 .tdls_oper = ieee80211_tdls_oper,
3773 .tdls_mgmt = ieee80211_tdls_mgmt,
3774 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3775 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3776 .probe_client = ieee80211_probe_client,
3777 .set_noack_map = ieee80211_set_noack_map,
3778 #ifdef CONFIG_PM
3779 .set_wakeup = ieee80211_set_wakeup,
3780 #endif
3781 .get_channel = ieee80211_cfg_get_channel,
3782 .start_radar_detection = ieee80211_start_radar_detection,
3783 .channel_switch = ieee80211_channel_switch,
3784 .set_qos_map = ieee80211_set_qos_map,
3785 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3786 .add_tx_ts = ieee80211_add_tx_ts,
3787 .del_tx_ts = ieee80211_del_tx_ts,
3788 .start_nan = ieee80211_start_nan,
3789 .stop_nan = ieee80211_stop_nan,
3790 .nan_change_conf = ieee80211_nan_change_conf,
3791 .add_nan_func = ieee80211_add_nan_func,
3792 .del_nan_func = ieee80211_del_nan_func,
3793 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
3794 };
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