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mac80211: restrict delayed tailroom needed decrement
[mirror_ubuntu-jammy-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 * Copyright (C) 2018 Intel Corporation
8 *
9 * This file is GPLv2 as found in COPYING.
10 */
11
12 #include <linux/ieee80211.h>
13 #include <linux/nl80211.h>
14 #include <linux/rtnetlink.h>
15 #include <linux/slab.h>
16 #include <net/net_namespace.h>
17 #include <linux/rcupdate.h>
18 #include <linux/if_ether.h>
19 #include <net/cfg80211.h>
20 #include "ieee80211_i.h"
21 #include "driver-ops.h"
22 #include "rate.h"
23 #include "mesh.h"
24 #include "wme.h"
25
26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
27 struct vif_params *params)
28 {
29 bool mu_mimo_groups = false;
30 bool mu_mimo_follow = false;
31
32 if (params->vht_mumimo_groups) {
33 u64 membership;
34
35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
36
37 memcpy(sdata->vif.bss_conf.mu_group.membership,
38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
39 memcpy(sdata->vif.bss_conf.mu_group.position,
40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
41 WLAN_USER_POSITION_LEN);
42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
43 /* don't care about endianness - just check for 0 */
44 memcpy(&membership, params->vht_mumimo_groups,
45 WLAN_MEMBERSHIP_LEN);
46 mu_mimo_groups = membership != 0;
47 }
48
49 if (params->vht_mumimo_follow_addr) {
50 mu_mimo_follow =
51 is_valid_ether_addr(params->vht_mumimo_follow_addr);
52 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
53 params->vht_mumimo_follow_addr);
54 }
55
56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
57 }
58
59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
60 struct vif_params *params)
61 {
62 struct ieee80211_local *local = sdata->local;
63 struct ieee80211_sub_if_data *monitor_sdata;
64
65 /* check flags first */
66 if (params->flags && ieee80211_sdata_running(sdata)) {
67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
68
69 /*
70 * Prohibit MONITOR_FLAG_COOK_FRAMES and
71 * MONITOR_FLAG_ACTIVE to be changed while the
72 * interface is up.
73 * Else we would need to add a lot of cruft
74 * to update everything:
75 * cooked_mntrs, monitor and all fif_* counters
76 * reconfigure hardware
77 */
78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
79 return -EBUSY;
80 }
81
82 /* also validate MU-MIMO change */
83 monitor_sdata = rtnl_dereference(local->monitor_sdata);
84
85 if (!monitor_sdata &&
86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
87 return -EOPNOTSUPP;
88
89 /* apply all changes now - no failures allowed */
90
91 if (monitor_sdata)
92 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
93
94 if (params->flags) {
95 if (ieee80211_sdata_running(sdata)) {
96 ieee80211_adjust_monitor_flags(sdata, -1);
97 sdata->u.mntr.flags = params->flags;
98 ieee80211_adjust_monitor_flags(sdata, 1);
99
100 ieee80211_configure_filter(local);
101 } else {
102 /*
103 * Because the interface is down, ieee80211_do_stop
104 * and ieee80211_do_open take care of "everything"
105 * mentioned in the comment above.
106 */
107 sdata->u.mntr.flags = params->flags;
108 }
109 }
110
111 return 0;
112 }
113
114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
115 const char *name,
116 unsigned char name_assign_type,
117 enum nl80211_iftype type,
118 struct vif_params *params)
119 {
120 struct ieee80211_local *local = wiphy_priv(wiphy);
121 struct wireless_dev *wdev;
122 struct ieee80211_sub_if_data *sdata;
123 int err;
124
125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
126 if (err)
127 return ERR_PTR(err);
128
129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
130
131 if (type == NL80211_IFTYPE_MONITOR) {
132 err = ieee80211_set_mon_options(sdata, params);
133 if (err) {
134 ieee80211_if_remove(sdata);
135 return NULL;
136 }
137 }
138
139 return wdev;
140 }
141
142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
143 {
144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
145
146 return 0;
147 }
148
149 static int ieee80211_change_iface(struct wiphy *wiphy,
150 struct net_device *dev,
151 enum nl80211_iftype type,
152 struct vif_params *params)
153 {
154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
155 int ret;
156
157 ret = ieee80211_if_change_type(sdata, type);
158 if (ret)
159 return ret;
160
161 if (type == NL80211_IFTYPE_AP_VLAN &&
162 params && params->use_4addr == 0) {
163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
164 ieee80211_check_fast_rx_iface(sdata);
165 } else if (type == NL80211_IFTYPE_STATION &&
166 params && params->use_4addr >= 0) {
167 sdata->u.mgd.use_4addr = params->use_4addr;
168 }
169
170 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
171 ret = ieee80211_set_mon_options(sdata, params);
172 if (ret)
173 return ret;
174 }
175
176 return 0;
177 }
178
179 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
180 struct wireless_dev *wdev)
181 {
182 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
183 int ret;
184
185 mutex_lock(&sdata->local->chanctx_mtx);
186 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
187 mutex_unlock(&sdata->local->chanctx_mtx);
188 if (ret < 0)
189 return ret;
190
191 return ieee80211_do_open(wdev, true);
192 }
193
194 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
195 struct wireless_dev *wdev)
196 {
197 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
198 }
199
200 static int ieee80211_start_nan(struct wiphy *wiphy,
201 struct wireless_dev *wdev,
202 struct cfg80211_nan_conf *conf)
203 {
204 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
205 int ret;
206
207 mutex_lock(&sdata->local->chanctx_mtx);
208 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
209 mutex_unlock(&sdata->local->chanctx_mtx);
210 if (ret < 0)
211 return ret;
212
213 ret = ieee80211_do_open(wdev, true);
214 if (ret)
215 return ret;
216
217 ret = drv_start_nan(sdata->local, sdata, conf);
218 if (ret)
219 ieee80211_sdata_stop(sdata);
220
221 sdata->u.nan.conf = *conf;
222
223 return ret;
224 }
225
226 static void ieee80211_stop_nan(struct wiphy *wiphy,
227 struct wireless_dev *wdev)
228 {
229 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
230
231 drv_stop_nan(sdata->local, sdata);
232 ieee80211_sdata_stop(sdata);
233 }
234
235 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
236 struct wireless_dev *wdev,
237 struct cfg80211_nan_conf *conf,
238 u32 changes)
239 {
240 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
241 struct cfg80211_nan_conf new_conf;
242 int ret = 0;
243
244 if (sdata->vif.type != NL80211_IFTYPE_NAN)
245 return -EOPNOTSUPP;
246
247 if (!ieee80211_sdata_running(sdata))
248 return -ENETDOWN;
249
250 new_conf = sdata->u.nan.conf;
251
252 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
253 new_conf.master_pref = conf->master_pref;
254
255 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
256 new_conf.bands = conf->bands;
257
258 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
259 if (!ret)
260 sdata->u.nan.conf = new_conf;
261
262 return ret;
263 }
264
265 static int ieee80211_add_nan_func(struct wiphy *wiphy,
266 struct wireless_dev *wdev,
267 struct cfg80211_nan_func *nan_func)
268 {
269 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
270 int ret;
271
272 if (sdata->vif.type != NL80211_IFTYPE_NAN)
273 return -EOPNOTSUPP;
274
275 if (!ieee80211_sdata_running(sdata))
276 return -ENETDOWN;
277
278 spin_lock_bh(&sdata->u.nan.func_lock);
279
280 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
281 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
282 GFP_ATOMIC);
283 spin_unlock_bh(&sdata->u.nan.func_lock);
284
285 if (ret < 0)
286 return ret;
287
288 nan_func->instance_id = ret;
289
290 WARN_ON(nan_func->instance_id == 0);
291
292 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
293 if (ret) {
294 spin_lock_bh(&sdata->u.nan.func_lock);
295 idr_remove(&sdata->u.nan.function_inst_ids,
296 nan_func->instance_id);
297 spin_unlock_bh(&sdata->u.nan.func_lock);
298 }
299
300 return ret;
301 }
302
303 static struct cfg80211_nan_func *
304 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
305 u64 cookie)
306 {
307 struct cfg80211_nan_func *func;
308 int id;
309
310 lockdep_assert_held(&sdata->u.nan.func_lock);
311
312 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
313 if (func->cookie == cookie)
314 return func;
315 }
316
317 return NULL;
318 }
319
320 static void ieee80211_del_nan_func(struct wiphy *wiphy,
321 struct wireless_dev *wdev, u64 cookie)
322 {
323 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
324 struct cfg80211_nan_func *func;
325 u8 instance_id = 0;
326
327 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
328 !ieee80211_sdata_running(sdata))
329 return;
330
331 spin_lock_bh(&sdata->u.nan.func_lock);
332
333 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
334 if (func)
335 instance_id = func->instance_id;
336
337 spin_unlock_bh(&sdata->u.nan.func_lock);
338
339 if (instance_id)
340 drv_del_nan_func(sdata->local, sdata, instance_id);
341 }
342
343 static int ieee80211_set_noack_map(struct wiphy *wiphy,
344 struct net_device *dev,
345 u16 noack_map)
346 {
347 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
348
349 sdata->noack_map = noack_map;
350
351 ieee80211_check_fast_xmit_iface(sdata);
352
353 return 0;
354 }
355
356 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
357 u8 key_idx, bool pairwise, const u8 *mac_addr,
358 struct key_params *params)
359 {
360 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
361 struct ieee80211_local *local = sdata->local;
362 struct sta_info *sta = NULL;
363 const struct ieee80211_cipher_scheme *cs = NULL;
364 struct ieee80211_key *key;
365 int err;
366
367 if (!ieee80211_sdata_running(sdata))
368 return -ENETDOWN;
369
370 /* reject WEP and TKIP keys if WEP failed to initialize */
371 switch (params->cipher) {
372 case WLAN_CIPHER_SUITE_WEP40:
373 case WLAN_CIPHER_SUITE_TKIP:
374 case WLAN_CIPHER_SUITE_WEP104:
375 if (IS_ERR(local->wep_tx_tfm))
376 return -EINVAL;
377 break;
378 case WLAN_CIPHER_SUITE_CCMP:
379 case WLAN_CIPHER_SUITE_CCMP_256:
380 case WLAN_CIPHER_SUITE_AES_CMAC:
381 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
382 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
383 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
384 case WLAN_CIPHER_SUITE_GCMP:
385 case WLAN_CIPHER_SUITE_GCMP_256:
386 break;
387 default:
388 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
389 break;
390 }
391
392 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
393 params->key, params->seq_len, params->seq,
394 cs);
395 if (IS_ERR(key))
396 return PTR_ERR(key);
397
398 if (pairwise)
399 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
400
401 mutex_lock(&local->sta_mtx);
402
403 if (mac_addr) {
404 sta = sta_info_get_bss(sdata, mac_addr);
405 /*
406 * The ASSOC test makes sure the driver is ready to
407 * receive the key. When wpa_supplicant has roamed
408 * using FT, it attempts to set the key before
409 * association has completed, this rejects that attempt
410 * so it will set the key again after association.
411 *
412 * TODO: accept the key if we have a station entry and
413 * add it to the device after the station.
414 */
415 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
416 ieee80211_key_free_unused(key);
417 err = -ENOENT;
418 goto out_unlock;
419 }
420 }
421
422 switch (sdata->vif.type) {
423 case NL80211_IFTYPE_STATION:
424 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
425 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
426 break;
427 case NL80211_IFTYPE_AP:
428 case NL80211_IFTYPE_AP_VLAN:
429 /* Keys without a station are used for TX only */
430 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
431 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
432 break;
433 case NL80211_IFTYPE_ADHOC:
434 /* no MFP (yet) */
435 break;
436 case NL80211_IFTYPE_MESH_POINT:
437 #ifdef CONFIG_MAC80211_MESH
438 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
439 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
440 break;
441 #endif
442 case NL80211_IFTYPE_WDS:
443 case NL80211_IFTYPE_MONITOR:
444 case NL80211_IFTYPE_P2P_DEVICE:
445 case NL80211_IFTYPE_NAN:
446 case NL80211_IFTYPE_UNSPECIFIED:
447 case NUM_NL80211_IFTYPES:
448 case NL80211_IFTYPE_P2P_CLIENT:
449 case NL80211_IFTYPE_P2P_GO:
450 case NL80211_IFTYPE_OCB:
451 /* shouldn't happen */
452 WARN_ON_ONCE(1);
453 break;
454 }
455
456 if (sta)
457 sta->cipher_scheme = cs;
458
459 err = ieee80211_key_link(key, sdata, sta);
460
461 out_unlock:
462 mutex_unlock(&local->sta_mtx);
463
464 return err;
465 }
466
467 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
468 u8 key_idx, bool pairwise, const u8 *mac_addr)
469 {
470 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
471 struct ieee80211_local *local = sdata->local;
472 struct sta_info *sta;
473 struct ieee80211_key *key = NULL;
474 int ret;
475
476 mutex_lock(&local->sta_mtx);
477 mutex_lock(&local->key_mtx);
478
479 if (mac_addr) {
480 ret = -ENOENT;
481
482 sta = sta_info_get_bss(sdata, mac_addr);
483 if (!sta)
484 goto out_unlock;
485
486 if (pairwise)
487 key = key_mtx_dereference(local, sta->ptk[key_idx]);
488 else
489 key = key_mtx_dereference(local, sta->gtk[key_idx]);
490 } else
491 key = key_mtx_dereference(local, sdata->keys[key_idx]);
492
493 if (!key) {
494 ret = -ENOENT;
495 goto out_unlock;
496 }
497
498 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
499
500 ret = 0;
501 out_unlock:
502 mutex_unlock(&local->key_mtx);
503 mutex_unlock(&local->sta_mtx);
504
505 return ret;
506 }
507
508 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
509 u8 key_idx, bool pairwise, const u8 *mac_addr,
510 void *cookie,
511 void (*callback)(void *cookie,
512 struct key_params *params))
513 {
514 struct ieee80211_sub_if_data *sdata;
515 struct sta_info *sta = NULL;
516 u8 seq[6] = {0};
517 struct key_params params;
518 struct ieee80211_key *key = NULL;
519 u64 pn64;
520 u32 iv32;
521 u16 iv16;
522 int err = -ENOENT;
523 struct ieee80211_key_seq kseq = {};
524
525 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
526
527 rcu_read_lock();
528
529 if (mac_addr) {
530 sta = sta_info_get_bss(sdata, mac_addr);
531 if (!sta)
532 goto out;
533
534 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
535 key = rcu_dereference(sta->ptk[key_idx]);
536 else if (!pairwise &&
537 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
538 key = rcu_dereference(sta->gtk[key_idx]);
539 } else
540 key = rcu_dereference(sdata->keys[key_idx]);
541
542 if (!key)
543 goto out;
544
545 memset(&params, 0, sizeof(params));
546
547 params.cipher = key->conf.cipher;
548
549 switch (key->conf.cipher) {
550 case WLAN_CIPHER_SUITE_TKIP:
551 pn64 = atomic64_read(&key->conf.tx_pn);
552 iv32 = TKIP_PN_TO_IV32(pn64);
553 iv16 = TKIP_PN_TO_IV16(pn64);
554
555 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
556 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
557 drv_get_key_seq(sdata->local, key, &kseq);
558 iv32 = kseq.tkip.iv32;
559 iv16 = kseq.tkip.iv16;
560 }
561
562 seq[0] = iv16 & 0xff;
563 seq[1] = (iv16 >> 8) & 0xff;
564 seq[2] = iv32 & 0xff;
565 seq[3] = (iv32 >> 8) & 0xff;
566 seq[4] = (iv32 >> 16) & 0xff;
567 seq[5] = (iv32 >> 24) & 0xff;
568 params.seq = seq;
569 params.seq_len = 6;
570 break;
571 case WLAN_CIPHER_SUITE_CCMP:
572 case WLAN_CIPHER_SUITE_CCMP_256:
573 case WLAN_CIPHER_SUITE_AES_CMAC:
574 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
575 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
576 offsetof(typeof(kseq), aes_cmac));
577 /* fall through */
578 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
579 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
580 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
581 offsetof(typeof(kseq), aes_gmac));
582 /* fall through */
583 case WLAN_CIPHER_SUITE_GCMP:
584 case WLAN_CIPHER_SUITE_GCMP_256:
585 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
586 offsetof(typeof(kseq), gcmp));
587
588 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
589 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
590 drv_get_key_seq(sdata->local, key, &kseq);
591 memcpy(seq, kseq.ccmp.pn, 6);
592 } else {
593 pn64 = atomic64_read(&key->conf.tx_pn);
594 seq[0] = pn64;
595 seq[1] = pn64 >> 8;
596 seq[2] = pn64 >> 16;
597 seq[3] = pn64 >> 24;
598 seq[4] = pn64 >> 32;
599 seq[5] = pn64 >> 40;
600 }
601 params.seq = seq;
602 params.seq_len = 6;
603 break;
604 default:
605 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
606 break;
607 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
608 break;
609 drv_get_key_seq(sdata->local, key, &kseq);
610 params.seq = kseq.hw.seq;
611 params.seq_len = kseq.hw.seq_len;
612 break;
613 }
614
615 params.key = key->conf.key;
616 params.key_len = key->conf.keylen;
617
618 callback(cookie, &params);
619 err = 0;
620
621 out:
622 rcu_read_unlock();
623 return err;
624 }
625
626 static int ieee80211_config_default_key(struct wiphy *wiphy,
627 struct net_device *dev,
628 u8 key_idx, bool uni,
629 bool multi)
630 {
631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
632
633 ieee80211_set_default_key(sdata, key_idx, uni, multi);
634
635 return 0;
636 }
637
638 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
639 struct net_device *dev,
640 u8 key_idx)
641 {
642 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
643
644 ieee80211_set_default_mgmt_key(sdata, key_idx);
645
646 return 0;
647 }
648
649 void sta_set_rate_info_tx(struct sta_info *sta,
650 const struct ieee80211_tx_rate *rate,
651 struct rate_info *rinfo)
652 {
653 rinfo->flags = 0;
654 if (rate->flags & IEEE80211_TX_RC_MCS) {
655 rinfo->flags |= RATE_INFO_FLAGS_MCS;
656 rinfo->mcs = rate->idx;
657 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
658 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
659 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
660 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
661 } else {
662 struct ieee80211_supported_band *sband;
663 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
664 u16 brate;
665
666 sband = ieee80211_get_sband(sta->sdata);
667 if (sband) {
668 brate = sband->bitrates[rate->idx].bitrate;
669 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
670 }
671 }
672 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
673 rinfo->bw = RATE_INFO_BW_40;
674 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
675 rinfo->bw = RATE_INFO_BW_80;
676 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
677 rinfo->bw = RATE_INFO_BW_160;
678 else
679 rinfo->bw = RATE_INFO_BW_20;
680 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
681 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
682 }
683
684 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
685 int idx, u8 *mac, struct station_info *sinfo)
686 {
687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
688 struct ieee80211_local *local = sdata->local;
689 struct sta_info *sta;
690 int ret = -ENOENT;
691
692 mutex_lock(&local->sta_mtx);
693
694 sta = sta_info_get_by_idx(sdata, idx);
695 if (sta) {
696 ret = 0;
697 memcpy(mac, sta->sta.addr, ETH_ALEN);
698 sta_set_sinfo(sta, sinfo, true);
699 }
700
701 mutex_unlock(&local->sta_mtx);
702
703 return ret;
704 }
705
706 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
707 int idx, struct survey_info *survey)
708 {
709 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
710
711 return drv_get_survey(local, idx, survey);
712 }
713
714 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
715 const u8 *mac, struct station_info *sinfo)
716 {
717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
718 struct ieee80211_local *local = sdata->local;
719 struct sta_info *sta;
720 int ret = -ENOENT;
721
722 mutex_lock(&local->sta_mtx);
723
724 sta = sta_info_get_bss(sdata, mac);
725 if (sta) {
726 ret = 0;
727 sta_set_sinfo(sta, sinfo, true);
728 }
729
730 mutex_unlock(&local->sta_mtx);
731
732 return ret;
733 }
734
735 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
736 struct cfg80211_chan_def *chandef)
737 {
738 struct ieee80211_local *local = wiphy_priv(wiphy);
739 struct ieee80211_sub_if_data *sdata;
740 int ret = 0;
741
742 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
743 return 0;
744
745 mutex_lock(&local->mtx);
746 if (local->use_chanctx) {
747 sdata = rtnl_dereference(local->monitor_sdata);
748 if (sdata) {
749 ieee80211_vif_release_channel(sdata);
750 ret = ieee80211_vif_use_channel(sdata, chandef,
751 IEEE80211_CHANCTX_EXCLUSIVE);
752 }
753 } else if (local->open_count == local->monitors) {
754 local->_oper_chandef = *chandef;
755 ieee80211_hw_config(local, 0);
756 }
757
758 if (ret == 0)
759 local->monitor_chandef = *chandef;
760 mutex_unlock(&local->mtx);
761
762 return ret;
763 }
764
765 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
766 const u8 *resp, size_t resp_len,
767 const struct ieee80211_csa_settings *csa)
768 {
769 struct probe_resp *new, *old;
770
771 if (!resp || !resp_len)
772 return 1;
773
774 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
775
776 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
777 if (!new)
778 return -ENOMEM;
779
780 new->len = resp_len;
781 memcpy(new->data, resp, resp_len);
782
783 if (csa)
784 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
785 csa->n_counter_offsets_presp *
786 sizeof(new->csa_counter_offsets[0]));
787
788 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
789 if (old)
790 kfree_rcu(old, rcu_head);
791
792 return 0;
793 }
794
795 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
796 struct cfg80211_beacon_data *params,
797 const struct ieee80211_csa_settings *csa)
798 {
799 struct beacon_data *new, *old;
800 int new_head_len, new_tail_len;
801 int size, err;
802 u32 changed = BSS_CHANGED_BEACON;
803
804 old = sdata_dereference(sdata->u.ap.beacon, sdata);
805
806
807 /* Need to have a beacon head if we don't have one yet */
808 if (!params->head && !old)
809 return -EINVAL;
810
811 /* new or old head? */
812 if (params->head)
813 new_head_len = params->head_len;
814 else
815 new_head_len = old->head_len;
816
817 /* new or old tail? */
818 if (params->tail || !old)
819 /* params->tail_len will be zero for !params->tail */
820 new_tail_len = params->tail_len;
821 else
822 new_tail_len = old->tail_len;
823
824 size = sizeof(*new) + new_head_len + new_tail_len;
825
826 new = kzalloc(size, GFP_KERNEL);
827 if (!new)
828 return -ENOMEM;
829
830 /* start filling the new info now */
831
832 /*
833 * pointers go into the block we allocated,
834 * memory is | beacon_data | head | tail |
835 */
836 new->head = ((u8 *) new) + sizeof(*new);
837 new->tail = new->head + new_head_len;
838 new->head_len = new_head_len;
839 new->tail_len = new_tail_len;
840
841 if (csa) {
842 new->csa_current_counter = csa->count;
843 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
844 csa->n_counter_offsets_beacon *
845 sizeof(new->csa_counter_offsets[0]));
846 }
847
848 /* copy in head */
849 if (params->head)
850 memcpy(new->head, params->head, new_head_len);
851 else
852 memcpy(new->head, old->head, new_head_len);
853
854 /* copy in optional tail */
855 if (params->tail)
856 memcpy(new->tail, params->tail, new_tail_len);
857 else
858 if (old)
859 memcpy(new->tail, old->tail, new_tail_len);
860
861 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
862 params->probe_resp_len, csa);
863 if (err < 0)
864 return err;
865 if (err == 0)
866 changed |= BSS_CHANGED_AP_PROBE_RESP;
867
868 rcu_assign_pointer(sdata->u.ap.beacon, new);
869
870 if (old)
871 kfree_rcu(old, rcu_head);
872
873 return changed;
874 }
875
876 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
877 struct cfg80211_ap_settings *params)
878 {
879 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
880 struct ieee80211_local *local = sdata->local;
881 struct beacon_data *old;
882 struct ieee80211_sub_if_data *vlan;
883 u32 changed = BSS_CHANGED_BEACON_INT |
884 BSS_CHANGED_BEACON_ENABLED |
885 BSS_CHANGED_BEACON |
886 BSS_CHANGED_SSID |
887 BSS_CHANGED_P2P_PS |
888 BSS_CHANGED_TXPOWER;
889 int err;
890
891 old = sdata_dereference(sdata->u.ap.beacon, sdata);
892 if (old)
893 return -EALREADY;
894
895 switch (params->smps_mode) {
896 case NL80211_SMPS_OFF:
897 sdata->smps_mode = IEEE80211_SMPS_OFF;
898 break;
899 case NL80211_SMPS_STATIC:
900 sdata->smps_mode = IEEE80211_SMPS_STATIC;
901 break;
902 case NL80211_SMPS_DYNAMIC:
903 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
904 break;
905 default:
906 return -EINVAL;
907 }
908 sdata->u.ap.req_smps = sdata->smps_mode;
909
910 sdata->needed_rx_chains = sdata->local->rx_chains;
911
912 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
913
914 mutex_lock(&local->mtx);
915 err = ieee80211_vif_use_channel(sdata, &params->chandef,
916 IEEE80211_CHANCTX_SHARED);
917 if (!err)
918 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
919 mutex_unlock(&local->mtx);
920 if (err)
921 return err;
922
923 /*
924 * Apply control port protocol, this allows us to
925 * not encrypt dynamic WEP control frames.
926 */
927 sdata->control_port_protocol = params->crypto.control_port_ethertype;
928 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
929 sdata->control_port_over_nl80211 =
930 params->crypto.control_port_over_nl80211;
931 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
932 &params->crypto,
933 sdata->vif.type);
934
935 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
936 vlan->control_port_protocol =
937 params->crypto.control_port_ethertype;
938 vlan->control_port_no_encrypt =
939 params->crypto.control_port_no_encrypt;
940 vlan->control_port_over_nl80211 =
941 params->crypto.control_port_over_nl80211;
942 vlan->encrypt_headroom =
943 ieee80211_cs_headroom(sdata->local,
944 &params->crypto,
945 vlan->vif.type);
946 }
947
948 sdata->vif.bss_conf.dtim_period = params->dtim_period;
949 sdata->vif.bss_conf.enable_beacon = true;
950 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
951
952 sdata->vif.bss_conf.ssid_len = params->ssid_len;
953 if (params->ssid_len)
954 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
955 params->ssid_len);
956 sdata->vif.bss_conf.hidden_ssid =
957 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
958
959 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
960 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
961 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
962 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
963 if (params->p2p_opp_ps)
964 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
965 IEEE80211_P2P_OPPPS_ENABLE_BIT;
966
967 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
968 if (err < 0) {
969 ieee80211_vif_release_channel(sdata);
970 return err;
971 }
972 changed |= err;
973
974 err = drv_start_ap(sdata->local, sdata);
975 if (err) {
976 old = sdata_dereference(sdata->u.ap.beacon, sdata);
977
978 if (old)
979 kfree_rcu(old, rcu_head);
980 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
981 ieee80211_vif_release_channel(sdata);
982 return err;
983 }
984
985 ieee80211_recalc_dtim(local, sdata);
986 ieee80211_bss_info_change_notify(sdata, changed);
987
988 netif_carrier_on(dev);
989 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
990 netif_carrier_on(vlan->dev);
991
992 return 0;
993 }
994
995 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
996 struct cfg80211_beacon_data *params)
997 {
998 struct ieee80211_sub_if_data *sdata;
999 struct beacon_data *old;
1000 int err;
1001
1002 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1003 sdata_assert_lock(sdata);
1004
1005 /* don't allow changing the beacon while CSA is in place - offset
1006 * of channel switch counter may change
1007 */
1008 if (sdata->vif.csa_active)
1009 return -EBUSY;
1010
1011 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1012 if (!old)
1013 return -ENOENT;
1014
1015 err = ieee80211_assign_beacon(sdata, params, NULL);
1016 if (err < 0)
1017 return err;
1018 ieee80211_bss_info_change_notify(sdata, err);
1019 return 0;
1020 }
1021
1022 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1023 {
1024 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1025 struct ieee80211_sub_if_data *vlan;
1026 struct ieee80211_local *local = sdata->local;
1027 struct beacon_data *old_beacon;
1028 struct probe_resp *old_probe_resp;
1029 struct cfg80211_chan_def chandef;
1030
1031 sdata_assert_lock(sdata);
1032
1033 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1034 if (!old_beacon)
1035 return -ENOENT;
1036 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1037
1038 /* abort any running channel switch */
1039 mutex_lock(&local->mtx);
1040 sdata->vif.csa_active = false;
1041 if (sdata->csa_block_tx) {
1042 ieee80211_wake_vif_queues(local, sdata,
1043 IEEE80211_QUEUE_STOP_REASON_CSA);
1044 sdata->csa_block_tx = false;
1045 }
1046
1047 mutex_unlock(&local->mtx);
1048
1049 kfree(sdata->u.ap.next_beacon);
1050 sdata->u.ap.next_beacon = NULL;
1051
1052 /* turn off carrier for this interface and dependent VLANs */
1053 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1054 netif_carrier_off(vlan->dev);
1055 netif_carrier_off(dev);
1056
1057 /* remove beacon and probe response */
1058 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1059 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1060 kfree_rcu(old_beacon, rcu_head);
1061 if (old_probe_resp)
1062 kfree_rcu(old_probe_resp, rcu_head);
1063 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1064
1065 __sta_info_flush(sdata, true);
1066 ieee80211_free_keys(sdata, true);
1067
1068 sdata->vif.bss_conf.enable_beacon = false;
1069 sdata->vif.bss_conf.ssid_len = 0;
1070 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1071 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1072
1073 if (sdata->wdev.cac_started) {
1074 chandef = sdata->vif.bss_conf.chandef;
1075 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1076 cfg80211_cac_event(sdata->dev, &chandef,
1077 NL80211_RADAR_CAC_ABORTED,
1078 GFP_KERNEL);
1079 }
1080
1081 drv_stop_ap(sdata->local, sdata);
1082
1083 /* free all potentially still buffered bcast frames */
1084 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1085 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1086
1087 mutex_lock(&local->mtx);
1088 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1089 ieee80211_vif_release_channel(sdata);
1090 mutex_unlock(&local->mtx);
1091
1092 return 0;
1093 }
1094
1095 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1096 struct iapp_layer2_update {
1097 u8 da[ETH_ALEN]; /* broadcast */
1098 u8 sa[ETH_ALEN]; /* STA addr */
1099 __be16 len; /* 6 */
1100 u8 dsap; /* 0 */
1101 u8 ssap; /* 0 */
1102 u8 control;
1103 u8 xid_info[3];
1104 } __packed;
1105
1106 static void ieee80211_send_layer2_update(struct sta_info *sta)
1107 {
1108 struct iapp_layer2_update *msg;
1109 struct sk_buff *skb;
1110
1111 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1112 * bridge devices */
1113
1114 skb = dev_alloc_skb(sizeof(*msg));
1115 if (!skb)
1116 return;
1117 msg = skb_put(skb, sizeof(*msg));
1118
1119 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1120 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1121
1122 eth_broadcast_addr(msg->da);
1123 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1124 msg->len = htons(6);
1125 msg->dsap = 0;
1126 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1127 msg->control = 0xaf; /* XID response lsb.1111F101.
1128 * F=0 (no poll command; unsolicited frame) */
1129 msg->xid_info[0] = 0x81; /* XID format identifier */
1130 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1131 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1132
1133 skb->dev = sta->sdata->dev;
1134 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1135 memset(skb->cb, 0, sizeof(skb->cb));
1136 netif_rx_ni(skb);
1137 }
1138
1139 static int sta_apply_auth_flags(struct ieee80211_local *local,
1140 struct sta_info *sta,
1141 u32 mask, u32 set)
1142 {
1143 int ret;
1144
1145 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1146 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1147 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1148 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1149 if (ret)
1150 return ret;
1151 }
1152
1153 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1154 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1155 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1156 /*
1157 * When peer becomes associated, init rate control as
1158 * well. Some drivers require rate control initialized
1159 * before drv_sta_state() is called.
1160 */
1161 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1162 rate_control_rate_init(sta);
1163
1164 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1165 if (ret)
1166 return ret;
1167 }
1168
1169 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1170 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1171 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1172 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1173 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1174 else
1175 ret = 0;
1176 if (ret)
1177 return ret;
1178 }
1179
1180 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1181 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1182 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1183 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1184 if (ret)
1185 return ret;
1186 }
1187
1188 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1189 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1190 test_sta_flag(sta, WLAN_STA_AUTH)) {
1191 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1192 if (ret)
1193 return ret;
1194 }
1195
1196 return 0;
1197 }
1198
1199 static void sta_apply_mesh_params(struct ieee80211_local *local,
1200 struct sta_info *sta,
1201 struct station_parameters *params)
1202 {
1203 #ifdef CONFIG_MAC80211_MESH
1204 struct ieee80211_sub_if_data *sdata = sta->sdata;
1205 u32 changed = 0;
1206
1207 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1208 switch (params->plink_state) {
1209 case NL80211_PLINK_ESTAB:
1210 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1211 changed = mesh_plink_inc_estab_count(sdata);
1212 sta->mesh->plink_state = params->plink_state;
1213 sta->mesh->aid = params->peer_aid;
1214
1215 ieee80211_mps_sta_status_update(sta);
1216 changed |= ieee80211_mps_set_sta_local_pm(sta,
1217 sdata->u.mesh.mshcfg.power_mode);
1218 break;
1219 case NL80211_PLINK_LISTEN:
1220 case NL80211_PLINK_BLOCKED:
1221 case NL80211_PLINK_OPN_SNT:
1222 case NL80211_PLINK_OPN_RCVD:
1223 case NL80211_PLINK_CNF_RCVD:
1224 case NL80211_PLINK_HOLDING:
1225 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1226 changed = mesh_plink_dec_estab_count(sdata);
1227 sta->mesh->plink_state = params->plink_state;
1228
1229 ieee80211_mps_sta_status_update(sta);
1230 changed |= ieee80211_mps_set_sta_local_pm(sta,
1231 NL80211_MESH_POWER_UNKNOWN);
1232 break;
1233 default:
1234 /* nothing */
1235 break;
1236 }
1237 }
1238
1239 switch (params->plink_action) {
1240 case NL80211_PLINK_ACTION_NO_ACTION:
1241 /* nothing */
1242 break;
1243 case NL80211_PLINK_ACTION_OPEN:
1244 changed |= mesh_plink_open(sta);
1245 break;
1246 case NL80211_PLINK_ACTION_BLOCK:
1247 changed |= mesh_plink_block(sta);
1248 break;
1249 }
1250
1251 if (params->local_pm)
1252 changed |= ieee80211_mps_set_sta_local_pm(sta,
1253 params->local_pm);
1254
1255 ieee80211_mbss_info_change_notify(sdata, changed);
1256 #endif
1257 }
1258
1259 static int sta_apply_parameters(struct ieee80211_local *local,
1260 struct sta_info *sta,
1261 struct station_parameters *params)
1262 {
1263 int ret = 0;
1264 struct ieee80211_supported_band *sband;
1265 struct ieee80211_sub_if_data *sdata = sta->sdata;
1266 u32 mask, set;
1267
1268 sband = ieee80211_get_sband(sdata);
1269 if (!sband)
1270 return -EINVAL;
1271
1272 mask = params->sta_flags_mask;
1273 set = params->sta_flags_set;
1274
1275 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1276 /*
1277 * In mesh mode, ASSOCIATED isn't part of the nl80211
1278 * API but must follow AUTHENTICATED for driver state.
1279 */
1280 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1281 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1282 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1283 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1284 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1285 /*
1286 * TDLS -- everything follows authorized, but
1287 * only becoming authorized is possible, not
1288 * going back
1289 */
1290 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1291 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1292 BIT(NL80211_STA_FLAG_ASSOCIATED);
1293 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1294 BIT(NL80211_STA_FLAG_ASSOCIATED);
1295 }
1296 }
1297
1298 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1299 local->hw.queues >= IEEE80211_NUM_ACS)
1300 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1301
1302 /* auth flags will be set later for TDLS,
1303 * and for unassociated stations that move to assocaited */
1304 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1305 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1306 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1307 ret = sta_apply_auth_flags(local, sta, mask, set);
1308 if (ret)
1309 return ret;
1310 }
1311
1312 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1313 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1314 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1315 else
1316 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1317 }
1318
1319 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1320 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1321 if (set & BIT(NL80211_STA_FLAG_MFP))
1322 set_sta_flag(sta, WLAN_STA_MFP);
1323 else
1324 clear_sta_flag(sta, WLAN_STA_MFP);
1325 }
1326
1327 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1328 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1329 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1330 else
1331 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1332 }
1333
1334 /* mark TDLS channel switch support, if the AP allows it */
1335 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1336 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1337 params->ext_capab_len >= 4 &&
1338 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1339 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1340
1341 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1342 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1343 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1344 params->ext_capab_len >= 8 &&
1345 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1346 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1347
1348 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1349 sta->sta.uapsd_queues = params->uapsd_queues;
1350 sta->sta.max_sp = params->max_sp;
1351 }
1352
1353 /* The sender might not have sent the last bit, consider it to be 0 */
1354 if (params->ext_capab_len >= 8) {
1355 u8 val = (params->ext_capab[7] &
1356 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1357
1358 /* we did get all the bits, take the MSB as well */
1359 if (params->ext_capab_len >= 9) {
1360 u8 val_msb = params->ext_capab[8] &
1361 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1362 val_msb <<= 1;
1363 val |= val_msb;
1364 }
1365
1366 switch (val) {
1367 case 1:
1368 sta->sta.max_amsdu_subframes = 32;
1369 break;
1370 case 2:
1371 sta->sta.max_amsdu_subframes = 16;
1372 break;
1373 case 3:
1374 sta->sta.max_amsdu_subframes = 8;
1375 break;
1376 default:
1377 sta->sta.max_amsdu_subframes = 0;
1378 }
1379 }
1380
1381 /*
1382 * cfg80211 validates this (1-2007) and allows setting the AID
1383 * only when creating a new station entry
1384 */
1385 if (params->aid)
1386 sta->sta.aid = params->aid;
1387
1388 /*
1389 * Some of the following updates would be racy if called on an
1390 * existing station, via ieee80211_change_station(). However,
1391 * all such changes are rejected by cfg80211 except for updates
1392 * changing the supported rates on an existing but not yet used
1393 * TDLS peer.
1394 */
1395
1396 if (params->listen_interval >= 0)
1397 sta->listen_interval = params->listen_interval;
1398
1399 if (params->supported_rates) {
1400 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1401 sband, params->supported_rates,
1402 params->supported_rates_len,
1403 &sta->sta.supp_rates[sband->band]);
1404 }
1405
1406 if (params->ht_capa)
1407 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1408 params->ht_capa, sta);
1409
1410 /* VHT can override some HT caps such as the A-MSDU max length */
1411 if (params->vht_capa)
1412 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1413 params->vht_capa, sta);
1414
1415 if (params->he_capa)
1416 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1417 (void *)params->he_capa,
1418 params->he_capa_len, sta);
1419
1420 if (params->opmode_notif_used) {
1421 /* returned value is only needed for rc update, but the
1422 * rc isn't initialized here yet, so ignore it
1423 */
1424 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1425 sband->band);
1426 }
1427
1428 if (params->support_p2p_ps >= 0)
1429 sta->sta.support_p2p_ps = params->support_p2p_ps;
1430
1431 if (ieee80211_vif_is_mesh(&sdata->vif))
1432 sta_apply_mesh_params(local, sta, params);
1433
1434 /* set the STA state after all sta info from usermode has been set */
1435 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1436 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1437 ret = sta_apply_auth_flags(local, sta, mask, set);
1438 if (ret)
1439 return ret;
1440 }
1441
1442 return 0;
1443 }
1444
1445 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1446 const u8 *mac,
1447 struct station_parameters *params)
1448 {
1449 struct ieee80211_local *local = wiphy_priv(wiphy);
1450 struct sta_info *sta;
1451 struct ieee80211_sub_if_data *sdata;
1452 int err;
1453 int layer2_update;
1454
1455 if (params->vlan) {
1456 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1457
1458 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1459 sdata->vif.type != NL80211_IFTYPE_AP)
1460 return -EINVAL;
1461 } else
1462 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1463
1464 if (ether_addr_equal(mac, sdata->vif.addr))
1465 return -EINVAL;
1466
1467 if (is_multicast_ether_addr(mac))
1468 return -EINVAL;
1469
1470 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1471 if (!sta)
1472 return -ENOMEM;
1473
1474 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1475 sta->sta.tdls = true;
1476
1477 err = sta_apply_parameters(local, sta, params);
1478 if (err) {
1479 sta_info_free(local, sta);
1480 return err;
1481 }
1482
1483 /*
1484 * for TDLS and for unassociated station, rate control should be
1485 * initialized only when rates are known and station is marked
1486 * authorized/associated
1487 */
1488 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1489 test_sta_flag(sta, WLAN_STA_ASSOC))
1490 rate_control_rate_init(sta);
1491
1492 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1493 sdata->vif.type == NL80211_IFTYPE_AP;
1494
1495 err = sta_info_insert_rcu(sta);
1496 if (err) {
1497 rcu_read_unlock();
1498 return err;
1499 }
1500
1501 if (layer2_update)
1502 ieee80211_send_layer2_update(sta);
1503
1504 rcu_read_unlock();
1505
1506 return 0;
1507 }
1508
1509 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1510 struct station_del_parameters *params)
1511 {
1512 struct ieee80211_sub_if_data *sdata;
1513
1514 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1515
1516 if (params->mac)
1517 return sta_info_destroy_addr_bss(sdata, params->mac);
1518
1519 sta_info_flush(sdata);
1520 return 0;
1521 }
1522
1523 static int ieee80211_change_station(struct wiphy *wiphy,
1524 struct net_device *dev, const u8 *mac,
1525 struct station_parameters *params)
1526 {
1527 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1528 struct ieee80211_local *local = wiphy_priv(wiphy);
1529 struct sta_info *sta;
1530 struct ieee80211_sub_if_data *vlansdata;
1531 enum cfg80211_station_type statype;
1532 int err;
1533
1534 mutex_lock(&local->sta_mtx);
1535
1536 sta = sta_info_get_bss(sdata, mac);
1537 if (!sta) {
1538 err = -ENOENT;
1539 goto out_err;
1540 }
1541
1542 switch (sdata->vif.type) {
1543 case NL80211_IFTYPE_MESH_POINT:
1544 if (sdata->u.mesh.user_mpm)
1545 statype = CFG80211_STA_MESH_PEER_USER;
1546 else
1547 statype = CFG80211_STA_MESH_PEER_KERNEL;
1548 break;
1549 case NL80211_IFTYPE_ADHOC:
1550 statype = CFG80211_STA_IBSS;
1551 break;
1552 case NL80211_IFTYPE_STATION:
1553 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1554 statype = CFG80211_STA_AP_STA;
1555 break;
1556 }
1557 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1558 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1559 else
1560 statype = CFG80211_STA_TDLS_PEER_SETUP;
1561 break;
1562 case NL80211_IFTYPE_AP:
1563 case NL80211_IFTYPE_AP_VLAN:
1564 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1565 statype = CFG80211_STA_AP_CLIENT;
1566 else
1567 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1568 break;
1569 default:
1570 err = -EOPNOTSUPP;
1571 goto out_err;
1572 }
1573
1574 err = cfg80211_check_station_change(wiphy, params, statype);
1575 if (err)
1576 goto out_err;
1577
1578 if (params->vlan && params->vlan != sta->sdata->dev) {
1579 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1580
1581 if (params->vlan->ieee80211_ptr->use_4addr) {
1582 if (vlansdata->u.vlan.sta) {
1583 err = -EBUSY;
1584 goto out_err;
1585 }
1586
1587 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1588 __ieee80211_check_fast_rx_iface(vlansdata);
1589 }
1590
1591 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1592 sta->sdata->u.vlan.sta)
1593 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1594
1595 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1596 ieee80211_vif_dec_num_mcast(sta->sdata);
1597
1598 sta->sdata = vlansdata;
1599 ieee80211_check_fast_xmit(sta);
1600
1601 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1602 ieee80211_vif_inc_num_mcast(sta->sdata);
1603
1604 ieee80211_send_layer2_update(sta);
1605 }
1606
1607 err = sta_apply_parameters(local, sta, params);
1608 if (err)
1609 goto out_err;
1610
1611 mutex_unlock(&local->sta_mtx);
1612
1613 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1614 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1615 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1616 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1617 sta_info_tx_streams(sta) != 1) {
1618 ht_dbg(sta->sdata,
1619 "%pM just authorized and MIMO capable - update SMPS\n",
1620 sta->sta.addr);
1621 ieee80211_send_smps_action(sta->sdata,
1622 sta->sdata->bss->req_smps,
1623 sta->sta.addr,
1624 sta->sdata->vif.bss_conf.bssid);
1625 }
1626
1627 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1628 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1629 ieee80211_recalc_ps(local);
1630 ieee80211_recalc_ps_vif(sdata);
1631 }
1632
1633 return 0;
1634 out_err:
1635 mutex_unlock(&local->sta_mtx);
1636 return err;
1637 }
1638
1639 #ifdef CONFIG_MAC80211_MESH
1640 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1641 const u8 *dst, const u8 *next_hop)
1642 {
1643 struct ieee80211_sub_if_data *sdata;
1644 struct mesh_path *mpath;
1645 struct sta_info *sta;
1646
1647 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1648
1649 rcu_read_lock();
1650 sta = sta_info_get(sdata, next_hop);
1651 if (!sta) {
1652 rcu_read_unlock();
1653 return -ENOENT;
1654 }
1655
1656 mpath = mesh_path_add(sdata, dst);
1657 if (IS_ERR(mpath)) {
1658 rcu_read_unlock();
1659 return PTR_ERR(mpath);
1660 }
1661
1662 mesh_path_fix_nexthop(mpath, sta);
1663
1664 rcu_read_unlock();
1665 return 0;
1666 }
1667
1668 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1669 const u8 *dst)
1670 {
1671 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1672
1673 if (dst)
1674 return mesh_path_del(sdata, dst);
1675
1676 mesh_path_flush_by_iface(sdata);
1677 return 0;
1678 }
1679
1680 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1681 const u8 *dst, const u8 *next_hop)
1682 {
1683 struct ieee80211_sub_if_data *sdata;
1684 struct mesh_path *mpath;
1685 struct sta_info *sta;
1686
1687 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1688
1689 rcu_read_lock();
1690
1691 sta = sta_info_get(sdata, next_hop);
1692 if (!sta) {
1693 rcu_read_unlock();
1694 return -ENOENT;
1695 }
1696
1697 mpath = mesh_path_lookup(sdata, dst);
1698 if (!mpath) {
1699 rcu_read_unlock();
1700 return -ENOENT;
1701 }
1702
1703 mesh_path_fix_nexthop(mpath, sta);
1704
1705 rcu_read_unlock();
1706 return 0;
1707 }
1708
1709 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1710 struct mpath_info *pinfo)
1711 {
1712 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1713
1714 if (next_hop_sta)
1715 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1716 else
1717 eth_zero_addr(next_hop);
1718
1719 memset(pinfo, 0, sizeof(*pinfo));
1720
1721 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1722
1723 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1724 MPATH_INFO_SN |
1725 MPATH_INFO_METRIC |
1726 MPATH_INFO_EXPTIME |
1727 MPATH_INFO_DISCOVERY_TIMEOUT |
1728 MPATH_INFO_DISCOVERY_RETRIES |
1729 MPATH_INFO_FLAGS;
1730
1731 pinfo->frame_qlen = mpath->frame_queue.qlen;
1732 pinfo->sn = mpath->sn;
1733 pinfo->metric = mpath->metric;
1734 if (time_before(jiffies, mpath->exp_time))
1735 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1736 pinfo->discovery_timeout =
1737 jiffies_to_msecs(mpath->discovery_timeout);
1738 pinfo->discovery_retries = mpath->discovery_retries;
1739 if (mpath->flags & MESH_PATH_ACTIVE)
1740 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1741 if (mpath->flags & MESH_PATH_RESOLVING)
1742 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1743 if (mpath->flags & MESH_PATH_SN_VALID)
1744 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1745 if (mpath->flags & MESH_PATH_FIXED)
1746 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1747 if (mpath->flags & MESH_PATH_RESOLVED)
1748 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1749 }
1750
1751 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1752 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1753
1754 {
1755 struct ieee80211_sub_if_data *sdata;
1756 struct mesh_path *mpath;
1757
1758 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1759
1760 rcu_read_lock();
1761 mpath = mesh_path_lookup(sdata, dst);
1762 if (!mpath) {
1763 rcu_read_unlock();
1764 return -ENOENT;
1765 }
1766 memcpy(dst, mpath->dst, ETH_ALEN);
1767 mpath_set_pinfo(mpath, next_hop, pinfo);
1768 rcu_read_unlock();
1769 return 0;
1770 }
1771
1772 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1773 int idx, u8 *dst, u8 *next_hop,
1774 struct mpath_info *pinfo)
1775 {
1776 struct ieee80211_sub_if_data *sdata;
1777 struct mesh_path *mpath;
1778
1779 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1780
1781 rcu_read_lock();
1782 mpath = mesh_path_lookup_by_idx(sdata, idx);
1783 if (!mpath) {
1784 rcu_read_unlock();
1785 return -ENOENT;
1786 }
1787 memcpy(dst, mpath->dst, ETH_ALEN);
1788 mpath_set_pinfo(mpath, next_hop, pinfo);
1789 rcu_read_unlock();
1790 return 0;
1791 }
1792
1793 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1794 struct mpath_info *pinfo)
1795 {
1796 memset(pinfo, 0, sizeof(*pinfo));
1797 memcpy(mpp, mpath->mpp, ETH_ALEN);
1798
1799 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1800 }
1801
1802 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1803 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1804
1805 {
1806 struct ieee80211_sub_if_data *sdata;
1807 struct mesh_path *mpath;
1808
1809 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1810
1811 rcu_read_lock();
1812 mpath = mpp_path_lookup(sdata, dst);
1813 if (!mpath) {
1814 rcu_read_unlock();
1815 return -ENOENT;
1816 }
1817 memcpy(dst, mpath->dst, ETH_ALEN);
1818 mpp_set_pinfo(mpath, mpp, pinfo);
1819 rcu_read_unlock();
1820 return 0;
1821 }
1822
1823 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1824 int idx, u8 *dst, u8 *mpp,
1825 struct mpath_info *pinfo)
1826 {
1827 struct ieee80211_sub_if_data *sdata;
1828 struct mesh_path *mpath;
1829
1830 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1831
1832 rcu_read_lock();
1833 mpath = mpp_path_lookup_by_idx(sdata, idx);
1834 if (!mpath) {
1835 rcu_read_unlock();
1836 return -ENOENT;
1837 }
1838 memcpy(dst, mpath->dst, ETH_ALEN);
1839 mpp_set_pinfo(mpath, mpp, pinfo);
1840 rcu_read_unlock();
1841 return 0;
1842 }
1843
1844 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1845 struct net_device *dev,
1846 struct mesh_config *conf)
1847 {
1848 struct ieee80211_sub_if_data *sdata;
1849 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1850
1851 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1852 return 0;
1853 }
1854
1855 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1856 {
1857 return (mask >> (parm-1)) & 0x1;
1858 }
1859
1860 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1861 const struct mesh_setup *setup)
1862 {
1863 u8 *new_ie;
1864 const u8 *old_ie;
1865 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1866 struct ieee80211_sub_if_data, u.mesh);
1867
1868 /* allocate information elements */
1869 new_ie = NULL;
1870 old_ie = ifmsh->ie;
1871
1872 if (setup->ie_len) {
1873 new_ie = kmemdup(setup->ie, setup->ie_len,
1874 GFP_KERNEL);
1875 if (!new_ie)
1876 return -ENOMEM;
1877 }
1878 ifmsh->ie_len = setup->ie_len;
1879 ifmsh->ie = new_ie;
1880 kfree(old_ie);
1881
1882 /* now copy the rest of the setup parameters */
1883 ifmsh->mesh_id_len = setup->mesh_id_len;
1884 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1885 ifmsh->mesh_sp_id = setup->sync_method;
1886 ifmsh->mesh_pp_id = setup->path_sel_proto;
1887 ifmsh->mesh_pm_id = setup->path_metric;
1888 ifmsh->user_mpm = setup->user_mpm;
1889 ifmsh->mesh_auth_id = setup->auth_id;
1890 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1891 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1892 if (setup->is_authenticated)
1893 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1894 if (setup->is_secure)
1895 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1896
1897 /* mcast rate setting in Mesh Node */
1898 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1899 sizeof(setup->mcast_rate));
1900 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1901
1902 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1903 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1904
1905 return 0;
1906 }
1907
1908 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1909 struct net_device *dev, u32 mask,
1910 const struct mesh_config *nconf)
1911 {
1912 struct mesh_config *conf;
1913 struct ieee80211_sub_if_data *sdata;
1914 struct ieee80211_if_mesh *ifmsh;
1915
1916 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1917 ifmsh = &sdata->u.mesh;
1918
1919 /* Set the config options which we are interested in setting */
1920 conf = &(sdata->u.mesh.mshcfg);
1921 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1922 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1923 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1924 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1925 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1926 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1927 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1928 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1929 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1930 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1931 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1932 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1933 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1934 conf->element_ttl = nconf->element_ttl;
1935 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1936 if (ifmsh->user_mpm)
1937 return -EBUSY;
1938 conf->auto_open_plinks = nconf->auto_open_plinks;
1939 }
1940 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1941 conf->dot11MeshNbrOffsetMaxNeighbor =
1942 nconf->dot11MeshNbrOffsetMaxNeighbor;
1943 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1944 conf->dot11MeshHWMPmaxPREQretries =
1945 nconf->dot11MeshHWMPmaxPREQretries;
1946 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1947 conf->path_refresh_time = nconf->path_refresh_time;
1948 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1949 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1950 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1951 conf->dot11MeshHWMPactivePathTimeout =
1952 nconf->dot11MeshHWMPactivePathTimeout;
1953 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1954 conf->dot11MeshHWMPpreqMinInterval =
1955 nconf->dot11MeshHWMPpreqMinInterval;
1956 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1957 conf->dot11MeshHWMPperrMinInterval =
1958 nconf->dot11MeshHWMPperrMinInterval;
1959 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1960 mask))
1961 conf->dot11MeshHWMPnetDiameterTraversalTime =
1962 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1963 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1964 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1965 ieee80211_mesh_root_setup(ifmsh);
1966 }
1967 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1968 /* our current gate announcement implementation rides on root
1969 * announcements, so require this ifmsh to also be a root node
1970 * */
1971 if (nconf->dot11MeshGateAnnouncementProtocol &&
1972 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1973 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1974 ieee80211_mesh_root_setup(ifmsh);
1975 }
1976 conf->dot11MeshGateAnnouncementProtocol =
1977 nconf->dot11MeshGateAnnouncementProtocol;
1978 }
1979 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1980 conf->dot11MeshHWMPRannInterval =
1981 nconf->dot11MeshHWMPRannInterval;
1982 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1983 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1984 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1985 /* our RSSI threshold implementation is supported only for
1986 * devices that report signal in dBm.
1987 */
1988 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
1989 return -ENOTSUPP;
1990 conf->rssi_threshold = nconf->rssi_threshold;
1991 }
1992 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1993 conf->ht_opmode = nconf->ht_opmode;
1994 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1995 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1996 }
1997 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1998 conf->dot11MeshHWMPactivePathToRootTimeout =
1999 nconf->dot11MeshHWMPactivePathToRootTimeout;
2000 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2001 conf->dot11MeshHWMProotInterval =
2002 nconf->dot11MeshHWMProotInterval;
2003 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2004 conf->dot11MeshHWMPconfirmationInterval =
2005 nconf->dot11MeshHWMPconfirmationInterval;
2006 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2007 conf->power_mode = nconf->power_mode;
2008 ieee80211_mps_local_status_update(sdata);
2009 }
2010 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2011 conf->dot11MeshAwakeWindowDuration =
2012 nconf->dot11MeshAwakeWindowDuration;
2013 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2014 conf->plink_timeout = nconf->plink_timeout;
2015 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2016 return 0;
2017 }
2018
2019 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2020 const struct mesh_config *conf,
2021 const struct mesh_setup *setup)
2022 {
2023 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2024 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2025 int err;
2026
2027 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2028 err = copy_mesh_setup(ifmsh, setup);
2029 if (err)
2030 return err;
2031
2032 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2033
2034 /* can mesh use other SMPS modes? */
2035 sdata->smps_mode = IEEE80211_SMPS_OFF;
2036 sdata->needed_rx_chains = sdata->local->rx_chains;
2037
2038 mutex_lock(&sdata->local->mtx);
2039 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2040 IEEE80211_CHANCTX_SHARED);
2041 mutex_unlock(&sdata->local->mtx);
2042 if (err)
2043 return err;
2044
2045 return ieee80211_start_mesh(sdata);
2046 }
2047
2048 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2049 {
2050 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2051
2052 ieee80211_stop_mesh(sdata);
2053 mutex_lock(&sdata->local->mtx);
2054 ieee80211_vif_release_channel(sdata);
2055 mutex_unlock(&sdata->local->mtx);
2056
2057 return 0;
2058 }
2059 #endif
2060
2061 static int ieee80211_change_bss(struct wiphy *wiphy,
2062 struct net_device *dev,
2063 struct bss_parameters *params)
2064 {
2065 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2066 struct ieee80211_supported_band *sband;
2067 u32 changed = 0;
2068
2069 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2070 return -ENOENT;
2071
2072 sband = ieee80211_get_sband(sdata);
2073 if (!sband)
2074 return -EINVAL;
2075
2076 if (params->use_cts_prot >= 0) {
2077 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2078 changed |= BSS_CHANGED_ERP_CTS_PROT;
2079 }
2080 if (params->use_short_preamble >= 0) {
2081 sdata->vif.bss_conf.use_short_preamble =
2082 params->use_short_preamble;
2083 changed |= BSS_CHANGED_ERP_PREAMBLE;
2084 }
2085
2086 if (!sdata->vif.bss_conf.use_short_slot &&
2087 sband->band == NL80211_BAND_5GHZ) {
2088 sdata->vif.bss_conf.use_short_slot = true;
2089 changed |= BSS_CHANGED_ERP_SLOT;
2090 }
2091
2092 if (params->use_short_slot_time >= 0) {
2093 sdata->vif.bss_conf.use_short_slot =
2094 params->use_short_slot_time;
2095 changed |= BSS_CHANGED_ERP_SLOT;
2096 }
2097
2098 if (params->basic_rates) {
2099 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2100 wiphy->bands[sband->band],
2101 params->basic_rates,
2102 params->basic_rates_len,
2103 &sdata->vif.bss_conf.basic_rates);
2104 changed |= BSS_CHANGED_BASIC_RATES;
2105 ieee80211_check_rate_mask(sdata);
2106 }
2107
2108 if (params->ap_isolate >= 0) {
2109 if (params->ap_isolate)
2110 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2111 else
2112 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2113 ieee80211_check_fast_rx_iface(sdata);
2114 }
2115
2116 if (params->ht_opmode >= 0) {
2117 sdata->vif.bss_conf.ht_operation_mode =
2118 (u16) params->ht_opmode;
2119 changed |= BSS_CHANGED_HT;
2120 }
2121
2122 if (params->p2p_ctwindow >= 0) {
2123 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2124 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2125 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2126 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2127 changed |= BSS_CHANGED_P2P_PS;
2128 }
2129
2130 if (params->p2p_opp_ps > 0) {
2131 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2132 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2133 changed |= BSS_CHANGED_P2P_PS;
2134 } else if (params->p2p_opp_ps == 0) {
2135 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2136 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2137 changed |= BSS_CHANGED_P2P_PS;
2138 }
2139
2140 ieee80211_bss_info_change_notify(sdata, changed);
2141
2142 return 0;
2143 }
2144
2145 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2146 struct net_device *dev,
2147 struct ieee80211_txq_params *params)
2148 {
2149 struct ieee80211_local *local = wiphy_priv(wiphy);
2150 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2151 struct ieee80211_tx_queue_params p;
2152
2153 if (!local->ops->conf_tx)
2154 return -EOPNOTSUPP;
2155
2156 if (local->hw.queues < IEEE80211_NUM_ACS)
2157 return -EOPNOTSUPP;
2158
2159 memset(&p, 0, sizeof(p));
2160 p.aifs = params->aifs;
2161 p.cw_max = params->cwmax;
2162 p.cw_min = params->cwmin;
2163 p.txop = params->txop;
2164
2165 /*
2166 * Setting tx queue params disables u-apsd because it's only
2167 * called in master mode.
2168 */
2169 p.uapsd = false;
2170
2171 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2172
2173 sdata->tx_conf[params->ac] = p;
2174 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2175 wiphy_debug(local->hw.wiphy,
2176 "failed to set TX queue parameters for AC %d\n",
2177 params->ac);
2178 return -EINVAL;
2179 }
2180
2181 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2182
2183 return 0;
2184 }
2185
2186 #ifdef CONFIG_PM
2187 static int ieee80211_suspend(struct wiphy *wiphy,
2188 struct cfg80211_wowlan *wowlan)
2189 {
2190 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2191 }
2192
2193 static int ieee80211_resume(struct wiphy *wiphy)
2194 {
2195 return __ieee80211_resume(wiphy_priv(wiphy));
2196 }
2197 #else
2198 #define ieee80211_suspend NULL
2199 #define ieee80211_resume NULL
2200 #endif
2201
2202 static int ieee80211_scan(struct wiphy *wiphy,
2203 struct cfg80211_scan_request *req)
2204 {
2205 struct ieee80211_sub_if_data *sdata;
2206
2207 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2208
2209 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2210 case NL80211_IFTYPE_STATION:
2211 case NL80211_IFTYPE_ADHOC:
2212 case NL80211_IFTYPE_MESH_POINT:
2213 case NL80211_IFTYPE_P2P_CLIENT:
2214 case NL80211_IFTYPE_P2P_DEVICE:
2215 break;
2216 case NL80211_IFTYPE_P2P_GO:
2217 if (sdata->local->ops->hw_scan)
2218 break;
2219 /*
2220 * FIXME: implement NoA while scanning in software,
2221 * for now fall through to allow scanning only when
2222 * beaconing hasn't been configured yet
2223 */
2224 /* fall through */
2225 case NL80211_IFTYPE_AP:
2226 /*
2227 * If the scan has been forced (and the driver supports
2228 * forcing), don't care about being beaconing already.
2229 * This will create problems to the attached stations (e.g. all
2230 * the frames sent while scanning on other channel will be
2231 * lost)
2232 */
2233 if (sdata->u.ap.beacon &&
2234 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2235 !(req->flags & NL80211_SCAN_FLAG_AP)))
2236 return -EOPNOTSUPP;
2237 break;
2238 case NL80211_IFTYPE_NAN:
2239 default:
2240 return -EOPNOTSUPP;
2241 }
2242
2243 return ieee80211_request_scan(sdata, req);
2244 }
2245
2246 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2247 {
2248 ieee80211_scan_cancel(wiphy_priv(wiphy));
2249 }
2250
2251 static int
2252 ieee80211_sched_scan_start(struct wiphy *wiphy,
2253 struct net_device *dev,
2254 struct cfg80211_sched_scan_request *req)
2255 {
2256 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2257
2258 if (!sdata->local->ops->sched_scan_start)
2259 return -EOPNOTSUPP;
2260
2261 return ieee80211_request_sched_scan_start(sdata, req);
2262 }
2263
2264 static int
2265 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2266 u64 reqid)
2267 {
2268 struct ieee80211_local *local = wiphy_priv(wiphy);
2269
2270 if (!local->ops->sched_scan_stop)
2271 return -EOPNOTSUPP;
2272
2273 return ieee80211_request_sched_scan_stop(local);
2274 }
2275
2276 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2277 struct cfg80211_auth_request *req)
2278 {
2279 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2280 }
2281
2282 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2283 struct cfg80211_assoc_request *req)
2284 {
2285 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2286 }
2287
2288 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2289 struct cfg80211_deauth_request *req)
2290 {
2291 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2292 }
2293
2294 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2295 struct cfg80211_disassoc_request *req)
2296 {
2297 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2298 }
2299
2300 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2301 struct cfg80211_ibss_params *params)
2302 {
2303 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2304 }
2305
2306 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2307 {
2308 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2309 }
2310
2311 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2312 struct ocb_setup *setup)
2313 {
2314 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2315 }
2316
2317 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2318 {
2319 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2320 }
2321
2322 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2323 int rate[NUM_NL80211_BANDS])
2324 {
2325 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2326
2327 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2328 sizeof(int) * NUM_NL80211_BANDS);
2329
2330 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2331
2332 return 0;
2333 }
2334
2335 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2336 {
2337 struct ieee80211_local *local = wiphy_priv(wiphy);
2338 int err;
2339
2340 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2341 ieee80211_check_fast_xmit_all(local);
2342
2343 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2344
2345 if (err) {
2346 ieee80211_check_fast_xmit_all(local);
2347 return err;
2348 }
2349 }
2350
2351 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2352 (changed & WIPHY_PARAM_DYN_ACK)) {
2353 s16 coverage_class;
2354
2355 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2356 wiphy->coverage_class : -1;
2357 err = drv_set_coverage_class(local, coverage_class);
2358
2359 if (err)
2360 return err;
2361 }
2362
2363 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2364 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2365
2366 if (err)
2367 return err;
2368 }
2369
2370 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2371 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2372 return -EINVAL;
2373 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2374 }
2375 if (changed & WIPHY_PARAM_RETRY_LONG) {
2376 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2377 return -EINVAL;
2378 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2379 }
2380 if (changed &
2381 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2382 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2383
2384 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2385 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2386 WIPHY_PARAM_TXQ_QUANTUM))
2387 ieee80211_txq_set_params(local);
2388
2389 return 0;
2390 }
2391
2392 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2393 struct wireless_dev *wdev,
2394 enum nl80211_tx_power_setting type, int mbm)
2395 {
2396 struct ieee80211_local *local = wiphy_priv(wiphy);
2397 struct ieee80211_sub_if_data *sdata;
2398 enum nl80211_tx_power_setting txp_type = type;
2399 bool update_txp_type = false;
2400 bool has_monitor = false;
2401
2402 if (wdev) {
2403 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2404
2405 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2406 sdata = rtnl_dereference(local->monitor_sdata);
2407 if (!sdata)
2408 return -EOPNOTSUPP;
2409 }
2410
2411 switch (type) {
2412 case NL80211_TX_POWER_AUTOMATIC:
2413 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2414 txp_type = NL80211_TX_POWER_LIMITED;
2415 break;
2416 case NL80211_TX_POWER_LIMITED:
2417 case NL80211_TX_POWER_FIXED:
2418 if (mbm < 0 || (mbm % 100))
2419 return -EOPNOTSUPP;
2420 sdata->user_power_level = MBM_TO_DBM(mbm);
2421 break;
2422 }
2423
2424 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2425 update_txp_type = true;
2426 sdata->vif.bss_conf.txpower_type = txp_type;
2427 }
2428
2429 ieee80211_recalc_txpower(sdata, update_txp_type);
2430
2431 return 0;
2432 }
2433
2434 switch (type) {
2435 case NL80211_TX_POWER_AUTOMATIC:
2436 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2437 txp_type = NL80211_TX_POWER_LIMITED;
2438 break;
2439 case NL80211_TX_POWER_LIMITED:
2440 case NL80211_TX_POWER_FIXED:
2441 if (mbm < 0 || (mbm % 100))
2442 return -EOPNOTSUPP;
2443 local->user_power_level = MBM_TO_DBM(mbm);
2444 break;
2445 }
2446
2447 mutex_lock(&local->iflist_mtx);
2448 list_for_each_entry(sdata, &local->interfaces, list) {
2449 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2450 has_monitor = true;
2451 continue;
2452 }
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 list_for_each_entry(sdata, &local->interfaces, list) {
2459 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2460 continue;
2461 ieee80211_recalc_txpower(sdata, update_txp_type);
2462 }
2463 mutex_unlock(&local->iflist_mtx);
2464
2465 if (has_monitor) {
2466 sdata = rtnl_dereference(local->monitor_sdata);
2467 if (sdata) {
2468 sdata->user_power_level = local->user_power_level;
2469 if (txp_type != sdata->vif.bss_conf.txpower_type)
2470 update_txp_type = true;
2471 sdata->vif.bss_conf.txpower_type = txp_type;
2472
2473 ieee80211_recalc_txpower(sdata, update_txp_type);
2474 }
2475 }
2476
2477 return 0;
2478 }
2479
2480 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2481 struct wireless_dev *wdev,
2482 int *dbm)
2483 {
2484 struct ieee80211_local *local = wiphy_priv(wiphy);
2485 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2486
2487 if (local->ops->get_txpower)
2488 return drv_get_txpower(local, sdata, dbm);
2489
2490 if (!local->use_chanctx)
2491 *dbm = local->hw.conf.power_level;
2492 else
2493 *dbm = sdata->vif.bss_conf.txpower;
2494
2495 return 0;
2496 }
2497
2498 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2499 const u8 *addr)
2500 {
2501 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2502
2503 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2504
2505 return 0;
2506 }
2507
2508 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2509 {
2510 struct ieee80211_local *local = wiphy_priv(wiphy);
2511
2512 drv_rfkill_poll(local);
2513 }
2514
2515 #ifdef CONFIG_NL80211_TESTMODE
2516 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2517 struct wireless_dev *wdev,
2518 void *data, int len)
2519 {
2520 struct ieee80211_local *local = wiphy_priv(wiphy);
2521 struct ieee80211_vif *vif = NULL;
2522
2523 if (!local->ops->testmode_cmd)
2524 return -EOPNOTSUPP;
2525
2526 if (wdev) {
2527 struct ieee80211_sub_if_data *sdata;
2528
2529 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2530 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2531 vif = &sdata->vif;
2532 }
2533
2534 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2535 }
2536
2537 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2538 struct sk_buff *skb,
2539 struct netlink_callback *cb,
2540 void *data, int len)
2541 {
2542 struct ieee80211_local *local = wiphy_priv(wiphy);
2543
2544 if (!local->ops->testmode_dump)
2545 return -EOPNOTSUPP;
2546
2547 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2548 }
2549 #endif
2550
2551 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2552 enum ieee80211_smps_mode smps_mode)
2553 {
2554 struct sta_info *sta;
2555 enum ieee80211_smps_mode old_req;
2556
2557 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2558 return -EINVAL;
2559
2560 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2561 return 0;
2562
2563 old_req = sdata->u.ap.req_smps;
2564 sdata->u.ap.req_smps = smps_mode;
2565
2566 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2567 if (old_req == smps_mode ||
2568 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2569 return 0;
2570
2571 ht_dbg(sdata,
2572 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2573 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2574
2575 mutex_lock(&sdata->local->sta_mtx);
2576 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2577 /*
2578 * Only stations associated to our AP and
2579 * associated VLANs
2580 */
2581 if (sta->sdata->bss != &sdata->u.ap)
2582 continue;
2583
2584 /* This station doesn't support MIMO - skip it */
2585 if (sta_info_tx_streams(sta) == 1)
2586 continue;
2587
2588 /*
2589 * Don't wake up a STA just to send the action frame
2590 * unless we are getting more restrictive.
2591 */
2592 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2593 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2594 smps_mode)) {
2595 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2596 sta->sta.addr);
2597 continue;
2598 }
2599
2600 /*
2601 * If the STA is not authorized, wait until it gets
2602 * authorized and the action frame will be sent then.
2603 */
2604 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2605 continue;
2606
2607 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2608 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2609 sdata->vif.bss_conf.bssid);
2610 }
2611 mutex_unlock(&sdata->local->sta_mtx);
2612
2613 sdata->smps_mode = smps_mode;
2614 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2615
2616 return 0;
2617 }
2618
2619 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2620 enum ieee80211_smps_mode smps_mode)
2621 {
2622 const u8 *ap;
2623 enum ieee80211_smps_mode old_req;
2624 int err;
2625 struct sta_info *sta;
2626 bool tdls_peer_found = false;
2627
2628 lockdep_assert_held(&sdata->wdev.mtx);
2629
2630 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2631 return -EINVAL;
2632
2633 old_req = sdata->u.mgd.req_smps;
2634 sdata->u.mgd.req_smps = smps_mode;
2635
2636 if (old_req == smps_mode &&
2637 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2638 return 0;
2639
2640 /*
2641 * If not associated, or current association is not an HT
2642 * association, there's no need to do anything, just store
2643 * the new value until we associate.
2644 */
2645 if (!sdata->u.mgd.associated ||
2646 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2647 return 0;
2648
2649 ap = sdata->u.mgd.associated->bssid;
2650
2651 rcu_read_lock();
2652 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2653 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2654 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2655 continue;
2656
2657 tdls_peer_found = true;
2658 break;
2659 }
2660 rcu_read_unlock();
2661
2662 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2663 if (tdls_peer_found || !sdata->u.mgd.powersave)
2664 smps_mode = IEEE80211_SMPS_OFF;
2665 else
2666 smps_mode = IEEE80211_SMPS_DYNAMIC;
2667 }
2668
2669 /* send SM PS frame to AP */
2670 err = ieee80211_send_smps_action(sdata, smps_mode,
2671 ap, ap);
2672 if (err)
2673 sdata->u.mgd.req_smps = old_req;
2674 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2675 ieee80211_teardown_tdls_peers(sdata);
2676
2677 return err;
2678 }
2679
2680 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2681 bool enabled, int timeout)
2682 {
2683 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2684 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2685
2686 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2687 return -EOPNOTSUPP;
2688
2689 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2690 return -EOPNOTSUPP;
2691
2692 if (enabled == sdata->u.mgd.powersave &&
2693 timeout == local->dynamic_ps_forced_timeout)
2694 return 0;
2695
2696 sdata->u.mgd.powersave = enabled;
2697 local->dynamic_ps_forced_timeout = timeout;
2698
2699 /* no change, but if automatic follow powersave */
2700 sdata_lock(sdata);
2701 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2702 sdata_unlock(sdata);
2703
2704 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2705 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2706
2707 ieee80211_recalc_ps(local);
2708 ieee80211_recalc_ps_vif(sdata);
2709 ieee80211_check_fast_rx_iface(sdata);
2710
2711 return 0;
2712 }
2713
2714 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2715 struct net_device *dev,
2716 s32 rssi_thold, u32 rssi_hyst)
2717 {
2718 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2719 struct ieee80211_vif *vif = &sdata->vif;
2720 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2721
2722 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2723 rssi_hyst == bss_conf->cqm_rssi_hyst)
2724 return 0;
2725
2726 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2727 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2728 return -EOPNOTSUPP;
2729
2730 bss_conf->cqm_rssi_thold = rssi_thold;
2731 bss_conf->cqm_rssi_hyst = rssi_hyst;
2732 bss_conf->cqm_rssi_low = 0;
2733 bss_conf->cqm_rssi_high = 0;
2734 sdata->u.mgd.last_cqm_event_signal = 0;
2735
2736 /* tell the driver upon association, unless already associated */
2737 if (sdata->u.mgd.associated &&
2738 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2739 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2740
2741 return 0;
2742 }
2743
2744 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2745 struct net_device *dev,
2746 s32 rssi_low, s32 rssi_high)
2747 {
2748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2749 struct ieee80211_vif *vif = &sdata->vif;
2750 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2751
2752 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2753 return -EOPNOTSUPP;
2754
2755 bss_conf->cqm_rssi_low = rssi_low;
2756 bss_conf->cqm_rssi_high = rssi_high;
2757 bss_conf->cqm_rssi_thold = 0;
2758 bss_conf->cqm_rssi_hyst = 0;
2759 sdata->u.mgd.last_cqm_event_signal = 0;
2760
2761 /* tell the driver upon association, unless already associated */
2762 if (sdata->u.mgd.associated &&
2763 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2764 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2765
2766 return 0;
2767 }
2768
2769 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2770 struct net_device *dev,
2771 const u8 *addr,
2772 const struct cfg80211_bitrate_mask *mask)
2773 {
2774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2775 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2776 int i, ret;
2777
2778 if (!ieee80211_sdata_running(sdata))
2779 return -ENETDOWN;
2780
2781 /*
2782 * If active validate the setting and reject it if it doesn't leave
2783 * at least one basic rate usable, since we really have to be able
2784 * to send something, and if we're an AP we have to be able to do
2785 * so at a basic rate so that all clients can receive it.
2786 */
2787 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2788 sdata->vif.bss_conf.chandef.chan) {
2789 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2790 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2791
2792 if (!(mask->control[band].legacy & basic_rates))
2793 return -EINVAL;
2794 }
2795
2796 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2797 ret = drv_set_bitrate_mask(local, sdata, mask);
2798 if (ret)
2799 return ret;
2800 }
2801
2802 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2803 struct ieee80211_supported_band *sband = wiphy->bands[i];
2804 int j;
2805
2806 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2807 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2808 sizeof(mask->control[i].ht_mcs));
2809 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2810 mask->control[i].vht_mcs,
2811 sizeof(mask->control[i].vht_mcs));
2812
2813 sdata->rc_has_mcs_mask[i] = false;
2814 sdata->rc_has_vht_mcs_mask[i] = false;
2815 if (!sband)
2816 continue;
2817
2818 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2819 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2820 sdata->rc_has_mcs_mask[i] = true;
2821 break;
2822 }
2823 }
2824
2825 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2826 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2827 sdata->rc_has_vht_mcs_mask[i] = true;
2828 break;
2829 }
2830 }
2831 }
2832
2833 return 0;
2834 }
2835
2836 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2837 struct net_device *dev,
2838 struct cfg80211_chan_def *chandef,
2839 u32 cac_time_ms)
2840 {
2841 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2842 struct ieee80211_local *local = sdata->local;
2843 int err;
2844
2845 mutex_lock(&local->mtx);
2846 if (!list_empty(&local->roc_list) || local->scanning) {
2847 err = -EBUSY;
2848 goto out_unlock;
2849 }
2850
2851 /* whatever, but channel contexts should not complain about that one */
2852 sdata->smps_mode = IEEE80211_SMPS_OFF;
2853 sdata->needed_rx_chains = local->rx_chains;
2854
2855 err = ieee80211_vif_use_channel(sdata, chandef,
2856 IEEE80211_CHANCTX_SHARED);
2857 if (err)
2858 goto out_unlock;
2859
2860 ieee80211_queue_delayed_work(&sdata->local->hw,
2861 &sdata->dfs_cac_timer_work,
2862 msecs_to_jiffies(cac_time_ms));
2863
2864 out_unlock:
2865 mutex_unlock(&local->mtx);
2866 return err;
2867 }
2868
2869 static struct cfg80211_beacon_data *
2870 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2871 {
2872 struct cfg80211_beacon_data *new_beacon;
2873 u8 *pos;
2874 int len;
2875
2876 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2877 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2878 beacon->probe_resp_len;
2879
2880 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2881 if (!new_beacon)
2882 return NULL;
2883
2884 pos = (u8 *)(new_beacon + 1);
2885 if (beacon->head_len) {
2886 new_beacon->head_len = beacon->head_len;
2887 new_beacon->head = pos;
2888 memcpy(pos, beacon->head, beacon->head_len);
2889 pos += beacon->head_len;
2890 }
2891 if (beacon->tail_len) {
2892 new_beacon->tail_len = beacon->tail_len;
2893 new_beacon->tail = pos;
2894 memcpy(pos, beacon->tail, beacon->tail_len);
2895 pos += beacon->tail_len;
2896 }
2897 if (beacon->beacon_ies_len) {
2898 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2899 new_beacon->beacon_ies = pos;
2900 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2901 pos += beacon->beacon_ies_len;
2902 }
2903 if (beacon->proberesp_ies_len) {
2904 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2905 new_beacon->proberesp_ies = pos;
2906 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2907 pos += beacon->proberesp_ies_len;
2908 }
2909 if (beacon->assocresp_ies_len) {
2910 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2911 new_beacon->assocresp_ies = pos;
2912 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2913 pos += beacon->assocresp_ies_len;
2914 }
2915 if (beacon->probe_resp_len) {
2916 new_beacon->probe_resp_len = beacon->probe_resp_len;
2917 new_beacon->probe_resp = pos;
2918 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2919 pos += beacon->probe_resp_len;
2920 }
2921
2922 return new_beacon;
2923 }
2924
2925 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2926 {
2927 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2928
2929 ieee80211_queue_work(&sdata->local->hw,
2930 &sdata->csa_finalize_work);
2931 }
2932 EXPORT_SYMBOL(ieee80211_csa_finish);
2933
2934 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2935 u32 *changed)
2936 {
2937 int err;
2938
2939 switch (sdata->vif.type) {
2940 case NL80211_IFTYPE_AP:
2941 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2942 NULL);
2943 kfree(sdata->u.ap.next_beacon);
2944 sdata->u.ap.next_beacon = NULL;
2945
2946 if (err < 0)
2947 return err;
2948 *changed |= err;
2949 break;
2950 case NL80211_IFTYPE_ADHOC:
2951 err = ieee80211_ibss_finish_csa(sdata);
2952 if (err < 0)
2953 return err;
2954 *changed |= err;
2955 break;
2956 #ifdef CONFIG_MAC80211_MESH
2957 case NL80211_IFTYPE_MESH_POINT:
2958 err = ieee80211_mesh_finish_csa(sdata);
2959 if (err < 0)
2960 return err;
2961 *changed |= err;
2962 break;
2963 #endif
2964 default:
2965 WARN_ON(1);
2966 return -EINVAL;
2967 }
2968
2969 return 0;
2970 }
2971
2972 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2973 {
2974 struct ieee80211_local *local = sdata->local;
2975 u32 changed = 0;
2976 int err;
2977
2978 sdata_assert_lock(sdata);
2979 lockdep_assert_held(&local->mtx);
2980 lockdep_assert_held(&local->chanctx_mtx);
2981
2982 /*
2983 * using reservation isn't immediate as it may be deferred until later
2984 * with multi-vif. once reservation is complete it will re-schedule the
2985 * work with no reserved_chanctx so verify chandef to check if it
2986 * completed successfully
2987 */
2988
2989 if (sdata->reserved_chanctx) {
2990 /*
2991 * with multi-vif csa driver may call ieee80211_csa_finish()
2992 * many times while waiting for other interfaces to use their
2993 * reservations
2994 */
2995 if (sdata->reserved_ready)
2996 return 0;
2997
2998 return ieee80211_vif_use_reserved_context(sdata);
2999 }
3000
3001 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3002 &sdata->csa_chandef))
3003 return -EINVAL;
3004
3005 sdata->vif.csa_active = false;
3006
3007 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3008 if (err)
3009 return err;
3010
3011 ieee80211_bss_info_change_notify(sdata, changed);
3012
3013 if (sdata->csa_block_tx) {
3014 ieee80211_wake_vif_queues(local, sdata,
3015 IEEE80211_QUEUE_STOP_REASON_CSA);
3016 sdata->csa_block_tx = false;
3017 }
3018
3019 err = drv_post_channel_switch(sdata);
3020 if (err)
3021 return err;
3022
3023 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3024
3025 return 0;
3026 }
3027
3028 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3029 {
3030 if (__ieee80211_csa_finalize(sdata)) {
3031 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3032 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3033 GFP_KERNEL);
3034 }
3035 }
3036
3037 void ieee80211_csa_finalize_work(struct work_struct *work)
3038 {
3039 struct ieee80211_sub_if_data *sdata =
3040 container_of(work, struct ieee80211_sub_if_data,
3041 csa_finalize_work);
3042 struct ieee80211_local *local = sdata->local;
3043
3044 sdata_lock(sdata);
3045 mutex_lock(&local->mtx);
3046 mutex_lock(&local->chanctx_mtx);
3047
3048 /* AP might have been stopped while waiting for the lock. */
3049 if (!sdata->vif.csa_active)
3050 goto unlock;
3051
3052 if (!ieee80211_sdata_running(sdata))
3053 goto unlock;
3054
3055 ieee80211_csa_finalize(sdata);
3056
3057 unlock:
3058 mutex_unlock(&local->chanctx_mtx);
3059 mutex_unlock(&local->mtx);
3060 sdata_unlock(sdata);
3061 }
3062
3063 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3064 struct cfg80211_csa_settings *params,
3065 u32 *changed)
3066 {
3067 struct ieee80211_csa_settings csa = {};
3068 int err;
3069
3070 switch (sdata->vif.type) {
3071 case NL80211_IFTYPE_AP:
3072 sdata->u.ap.next_beacon =
3073 cfg80211_beacon_dup(&params->beacon_after);
3074 if (!sdata->u.ap.next_beacon)
3075 return -ENOMEM;
3076
3077 /*
3078 * With a count of 0, we don't have to wait for any
3079 * TBTT before switching, so complete the CSA
3080 * immediately. In theory, with a count == 1 we
3081 * should delay the switch until just before the next
3082 * TBTT, but that would complicate things so we switch
3083 * immediately too. If we would delay the switch
3084 * until the next TBTT, we would have to set the probe
3085 * response here.
3086 *
3087 * TODO: A channel switch with count <= 1 without
3088 * sending a CSA action frame is kind of useless,
3089 * because the clients won't know we're changing
3090 * channels. The action frame must be implemented
3091 * either here or in the userspace.
3092 */
3093 if (params->count <= 1)
3094 break;
3095
3096 if ((params->n_counter_offsets_beacon >
3097 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3098 (params->n_counter_offsets_presp >
3099 IEEE80211_MAX_CSA_COUNTERS_NUM))
3100 return -EINVAL;
3101
3102 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3103 csa.counter_offsets_presp = params->counter_offsets_presp;
3104 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3105 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3106 csa.count = params->count;
3107
3108 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3109 if (err < 0) {
3110 kfree(sdata->u.ap.next_beacon);
3111 return err;
3112 }
3113 *changed |= err;
3114
3115 break;
3116 case NL80211_IFTYPE_ADHOC:
3117 if (!sdata->vif.bss_conf.ibss_joined)
3118 return -EINVAL;
3119
3120 if (params->chandef.width != sdata->u.ibss.chandef.width)
3121 return -EINVAL;
3122
3123 switch (params->chandef.width) {
3124 case NL80211_CHAN_WIDTH_40:
3125 if (cfg80211_get_chandef_type(&params->chandef) !=
3126 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3127 return -EINVAL;
3128 case NL80211_CHAN_WIDTH_5:
3129 case NL80211_CHAN_WIDTH_10:
3130 case NL80211_CHAN_WIDTH_20_NOHT:
3131 case NL80211_CHAN_WIDTH_20:
3132 break;
3133 default:
3134 return -EINVAL;
3135 }
3136
3137 /* changes into another band are not supported */
3138 if (sdata->u.ibss.chandef.chan->band !=
3139 params->chandef.chan->band)
3140 return -EINVAL;
3141
3142 /* see comments in the NL80211_IFTYPE_AP block */
3143 if (params->count > 1) {
3144 err = ieee80211_ibss_csa_beacon(sdata, params);
3145 if (err < 0)
3146 return err;
3147 *changed |= err;
3148 }
3149
3150 ieee80211_send_action_csa(sdata, params);
3151
3152 break;
3153 #ifdef CONFIG_MAC80211_MESH
3154 case NL80211_IFTYPE_MESH_POINT: {
3155 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3156
3157 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3158 return -EINVAL;
3159
3160 /* changes into another band are not supported */
3161 if (sdata->vif.bss_conf.chandef.chan->band !=
3162 params->chandef.chan->band)
3163 return -EINVAL;
3164
3165 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3166 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3167 if (!ifmsh->pre_value)
3168 ifmsh->pre_value = 1;
3169 else
3170 ifmsh->pre_value++;
3171 }
3172
3173 /* see comments in the NL80211_IFTYPE_AP block */
3174 if (params->count > 1) {
3175 err = ieee80211_mesh_csa_beacon(sdata, params);
3176 if (err < 0) {
3177 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3178 return err;
3179 }
3180 *changed |= err;
3181 }
3182
3183 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3184 ieee80211_send_action_csa(sdata, params);
3185
3186 break;
3187 }
3188 #endif
3189 default:
3190 return -EOPNOTSUPP;
3191 }
3192
3193 return 0;
3194 }
3195
3196 static int
3197 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3198 struct cfg80211_csa_settings *params)
3199 {
3200 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3201 struct ieee80211_local *local = sdata->local;
3202 struct ieee80211_channel_switch ch_switch;
3203 struct ieee80211_chanctx_conf *conf;
3204 struct ieee80211_chanctx *chanctx;
3205 u32 changed = 0;
3206 int err;
3207
3208 sdata_assert_lock(sdata);
3209 lockdep_assert_held(&local->mtx);
3210
3211 if (!list_empty(&local->roc_list) || local->scanning)
3212 return -EBUSY;
3213
3214 if (sdata->wdev.cac_started)
3215 return -EBUSY;
3216
3217 if (cfg80211_chandef_identical(&params->chandef,
3218 &sdata->vif.bss_conf.chandef))
3219 return -EINVAL;
3220
3221 /* don't allow another channel switch if one is already active. */
3222 if (sdata->vif.csa_active)
3223 return -EBUSY;
3224
3225 mutex_lock(&local->chanctx_mtx);
3226 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3227 lockdep_is_held(&local->chanctx_mtx));
3228 if (!conf) {
3229 err = -EBUSY;
3230 goto out;
3231 }
3232
3233 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3234
3235 ch_switch.timestamp = 0;
3236 ch_switch.device_timestamp = 0;
3237 ch_switch.block_tx = params->block_tx;
3238 ch_switch.chandef = params->chandef;
3239 ch_switch.count = params->count;
3240
3241 err = drv_pre_channel_switch(sdata, &ch_switch);
3242 if (err)
3243 goto out;
3244
3245 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3246 chanctx->mode,
3247 params->radar_required);
3248 if (err)
3249 goto out;
3250
3251 /* if reservation is invalid then this will fail */
3252 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3253 if (err) {
3254 ieee80211_vif_unreserve_chanctx(sdata);
3255 goto out;
3256 }
3257
3258 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3259 if (err) {
3260 ieee80211_vif_unreserve_chanctx(sdata);
3261 goto out;
3262 }
3263
3264 sdata->csa_chandef = params->chandef;
3265 sdata->csa_block_tx = params->block_tx;
3266 sdata->vif.csa_active = true;
3267
3268 if (sdata->csa_block_tx)
3269 ieee80211_stop_vif_queues(local, sdata,
3270 IEEE80211_QUEUE_STOP_REASON_CSA);
3271
3272 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3273 params->count);
3274
3275 if (changed) {
3276 ieee80211_bss_info_change_notify(sdata, changed);
3277 drv_channel_switch_beacon(sdata, &params->chandef);
3278 } else {
3279 /* if the beacon didn't change, we can finalize immediately */
3280 ieee80211_csa_finalize(sdata);
3281 }
3282
3283 out:
3284 mutex_unlock(&local->chanctx_mtx);
3285 return err;
3286 }
3287
3288 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3289 struct cfg80211_csa_settings *params)
3290 {
3291 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3292 struct ieee80211_local *local = sdata->local;
3293 int err;
3294
3295 mutex_lock(&local->mtx);
3296 err = __ieee80211_channel_switch(wiphy, dev, params);
3297 mutex_unlock(&local->mtx);
3298
3299 return err;
3300 }
3301
3302 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3303 {
3304 lockdep_assert_held(&local->mtx);
3305
3306 local->roc_cookie_counter++;
3307
3308 /* wow, you wrapped 64 bits ... more likely a bug */
3309 if (WARN_ON(local->roc_cookie_counter == 0))
3310 local->roc_cookie_counter++;
3311
3312 return local->roc_cookie_counter;
3313 }
3314
3315 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3316 u64 *cookie, gfp_t gfp)
3317 {
3318 unsigned long spin_flags;
3319 struct sk_buff *ack_skb;
3320 int id;
3321
3322 ack_skb = skb_copy(skb, gfp);
3323 if (!ack_skb)
3324 return -ENOMEM;
3325
3326 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3327 id = idr_alloc(&local->ack_status_frames, ack_skb,
3328 1, 0x10000, GFP_ATOMIC);
3329 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3330
3331 if (id < 0) {
3332 kfree_skb(ack_skb);
3333 return -ENOMEM;
3334 }
3335
3336 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3337
3338 *cookie = ieee80211_mgmt_tx_cookie(local);
3339 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3340
3341 return 0;
3342 }
3343
3344 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3345 struct wireless_dev *wdev,
3346 u16 frame_type, bool reg)
3347 {
3348 struct ieee80211_local *local = wiphy_priv(wiphy);
3349 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3350
3351 switch (frame_type) {
3352 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3353 if (reg) {
3354 local->probe_req_reg++;
3355 sdata->vif.probe_req_reg++;
3356 } else {
3357 if (local->probe_req_reg)
3358 local->probe_req_reg--;
3359
3360 if (sdata->vif.probe_req_reg)
3361 sdata->vif.probe_req_reg--;
3362 }
3363
3364 if (!local->open_count)
3365 break;
3366
3367 if (sdata->vif.probe_req_reg == 1)
3368 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3369 FIF_PROBE_REQ);
3370 else if (sdata->vif.probe_req_reg == 0)
3371 drv_config_iface_filter(local, sdata, 0,
3372 FIF_PROBE_REQ);
3373
3374 ieee80211_configure_filter(local);
3375 break;
3376 default:
3377 break;
3378 }
3379 }
3380
3381 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3382 {
3383 struct ieee80211_local *local = wiphy_priv(wiphy);
3384
3385 if (local->started)
3386 return -EOPNOTSUPP;
3387
3388 return drv_set_antenna(local, tx_ant, rx_ant);
3389 }
3390
3391 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3392 {
3393 struct ieee80211_local *local = wiphy_priv(wiphy);
3394
3395 return drv_get_antenna(local, tx_ant, rx_ant);
3396 }
3397
3398 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3399 struct net_device *dev,
3400 struct cfg80211_gtk_rekey_data *data)
3401 {
3402 struct ieee80211_local *local = wiphy_priv(wiphy);
3403 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3404
3405 if (!local->ops->set_rekey_data)
3406 return -EOPNOTSUPP;
3407
3408 drv_set_rekey_data(local, sdata, data);
3409
3410 return 0;
3411 }
3412
3413 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3414 const u8 *peer, u64 *cookie)
3415 {
3416 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3417 struct ieee80211_local *local = sdata->local;
3418 struct ieee80211_qos_hdr *nullfunc;
3419 struct sk_buff *skb;
3420 int size = sizeof(*nullfunc);
3421 __le16 fc;
3422 bool qos;
3423 struct ieee80211_tx_info *info;
3424 struct sta_info *sta;
3425 struct ieee80211_chanctx_conf *chanctx_conf;
3426 enum nl80211_band band;
3427 int ret;
3428
3429 /* the lock is needed to assign the cookie later */
3430 mutex_lock(&local->mtx);
3431
3432 rcu_read_lock();
3433 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3434 if (WARN_ON(!chanctx_conf)) {
3435 ret = -EINVAL;
3436 goto unlock;
3437 }
3438 band = chanctx_conf->def.chan->band;
3439 sta = sta_info_get_bss(sdata, peer);
3440 if (sta) {
3441 qos = sta->sta.wme;
3442 } else {
3443 ret = -ENOLINK;
3444 goto unlock;
3445 }
3446
3447 if (qos) {
3448 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3449 IEEE80211_STYPE_QOS_NULLFUNC |
3450 IEEE80211_FCTL_FROMDS);
3451 } else {
3452 size -= 2;
3453 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3454 IEEE80211_STYPE_NULLFUNC |
3455 IEEE80211_FCTL_FROMDS);
3456 }
3457
3458 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3459 if (!skb) {
3460 ret = -ENOMEM;
3461 goto unlock;
3462 }
3463
3464 skb->dev = dev;
3465
3466 skb_reserve(skb, local->hw.extra_tx_headroom);
3467
3468 nullfunc = skb_put(skb, size);
3469 nullfunc->frame_control = fc;
3470 nullfunc->duration_id = 0;
3471 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3472 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3473 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3474 nullfunc->seq_ctrl = 0;
3475
3476 info = IEEE80211_SKB_CB(skb);
3477
3478 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3479 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3480 info->band = band;
3481
3482 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3483 skb->priority = 7;
3484 if (qos)
3485 nullfunc->qos_ctrl = cpu_to_le16(7);
3486
3487 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3488 if (ret) {
3489 kfree_skb(skb);
3490 goto unlock;
3491 }
3492
3493 local_bh_disable();
3494 ieee80211_xmit(sdata, sta, skb, 0);
3495 local_bh_enable();
3496
3497 ret = 0;
3498 unlock:
3499 rcu_read_unlock();
3500 mutex_unlock(&local->mtx);
3501
3502 return ret;
3503 }
3504
3505 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3506 struct wireless_dev *wdev,
3507 struct cfg80211_chan_def *chandef)
3508 {
3509 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3510 struct ieee80211_local *local = wiphy_priv(wiphy);
3511 struct ieee80211_chanctx_conf *chanctx_conf;
3512 int ret = -ENODATA;
3513
3514 rcu_read_lock();
3515 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3516 if (chanctx_conf) {
3517 *chandef = sdata->vif.bss_conf.chandef;
3518 ret = 0;
3519 } else if (local->open_count > 0 &&
3520 local->open_count == local->monitors &&
3521 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3522 if (local->use_chanctx)
3523 *chandef = local->monitor_chandef;
3524 else
3525 *chandef = local->_oper_chandef;
3526 ret = 0;
3527 }
3528 rcu_read_unlock();
3529
3530 return ret;
3531 }
3532
3533 #ifdef CONFIG_PM
3534 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3535 {
3536 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3537 }
3538 #endif
3539
3540 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3541 struct net_device *dev,
3542 struct cfg80211_qos_map *qos_map)
3543 {
3544 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3545 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3546
3547 if (qos_map) {
3548 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3549 if (!new_qos_map)
3550 return -ENOMEM;
3551 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3552 } else {
3553 /* A NULL qos_map was passed to disable QoS mapping */
3554 new_qos_map = NULL;
3555 }
3556
3557 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3558 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3559 if (old_qos_map)
3560 kfree_rcu(old_qos_map, rcu_head);
3561
3562 return 0;
3563 }
3564
3565 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3566 struct net_device *dev,
3567 struct cfg80211_chan_def *chandef)
3568 {
3569 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3570 int ret;
3571 u32 changed = 0;
3572
3573 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3574 if (ret == 0)
3575 ieee80211_bss_info_change_notify(sdata, changed);
3576
3577 return ret;
3578 }
3579
3580 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3581 u8 tsid, const u8 *peer, u8 up,
3582 u16 admitted_time)
3583 {
3584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3585 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3586 int ac = ieee802_1d_to_ac[up];
3587
3588 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3589 return -EOPNOTSUPP;
3590
3591 if (!(sdata->wmm_acm & BIT(up)))
3592 return -EINVAL;
3593
3594 if (ifmgd->tx_tspec[ac].admitted_time)
3595 return -EBUSY;
3596
3597 if (admitted_time) {
3598 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3599 ifmgd->tx_tspec[ac].tsid = tsid;
3600 ifmgd->tx_tspec[ac].up = up;
3601 }
3602
3603 return 0;
3604 }
3605
3606 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3607 u8 tsid, const u8 *peer)
3608 {
3609 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3610 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3611 struct ieee80211_local *local = wiphy_priv(wiphy);
3612 int ac;
3613
3614 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3615 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3616
3617 /* skip unused entries */
3618 if (!tx_tspec->admitted_time)
3619 continue;
3620
3621 if (tx_tspec->tsid != tsid)
3622 continue;
3623
3624 /* due to this new packets will be reassigned to non-ACM ACs */
3625 tx_tspec->up = -1;
3626
3627 /* Make sure that all packets have been sent to avoid to
3628 * restore the QoS params on packets that are still on the
3629 * queues.
3630 */
3631 synchronize_net();
3632 ieee80211_flush_queues(local, sdata, false);
3633
3634 /* restore the normal QoS parameters
3635 * (unconditionally to avoid races)
3636 */
3637 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3638 tx_tspec->downgraded = false;
3639 ieee80211_sta_handle_tspec_ac_params(sdata);
3640
3641 /* finally clear all the data */
3642 memset(tx_tspec, 0, sizeof(*tx_tspec));
3643
3644 return 0;
3645 }
3646
3647 return -ENOENT;
3648 }
3649
3650 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3651 u8 inst_id,
3652 enum nl80211_nan_func_term_reason reason,
3653 gfp_t gfp)
3654 {
3655 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3656 struct cfg80211_nan_func *func;
3657 u64 cookie;
3658
3659 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3660 return;
3661
3662 spin_lock_bh(&sdata->u.nan.func_lock);
3663
3664 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3665 if (WARN_ON(!func)) {
3666 spin_unlock_bh(&sdata->u.nan.func_lock);
3667 return;
3668 }
3669
3670 cookie = func->cookie;
3671 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3672
3673 spin_unlock_bh(&sdata->u.nan.func_lock);
3674
3675 cfg80211_free_nan_func(func);
3676
3677 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3678 reason, cookie, gfp);
3679 }
3680 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3681
3682 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3683 struct cfg80211_nan_match_params *match,
3684 gfp_t gfp)
3685 {
3686 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3687 struct cfg80211_nan_func *func;
3688
3689 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3690 return;
3691
3692 spin_lock_bh(&sdata->u.nan.func_lock);
3693
3694 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3695 if (WARN_ON(!func)) {
3696 spin_unlock_bh(&sdata->u.nan.func_lock);
3697 return;
3698 }
3699 match->cookie = func->cookie;
3700
3701 spin_unlock_bh(&sdata->u.nan.func_lock);
3702
3703 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3704 }
3705 EXPORT_SYMBOL(ieee80211_nan_func_match);
3706
3707 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3708 struct net_device *dev,
3709 const bool enabled)
3710 {
3711 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3712
3713 sdata->u.ap.multicast_to_unicast = enabled;
3714
3715 return 0;
3716 }
3717
3718 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3719 struct txq_info *txqi)
3720 {
3721 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3722 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3723 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3724 }
3725
3726 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3727 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3728 txqstats->backlog_packets = txqi->tin.backlog_packets;
3729 }
3730
3731 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3732 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3733 txqstats->flows = txqi->tin.flows;
3734 }
3735
3736 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3737 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3738 txqstats->drops = txqi->cstats.drop_count;
3739 }
3740
3741 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3742 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3743 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3744 }
3745
3746 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3747 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3748 txqstats->overlimit = txqi->tin.overlimit;
3749 }
3750
3751 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3752 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3753 txqstats->collisions = txqi->tin.collisions;
3754 }
3755
3756 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3757 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3758 txqstats->tx_bytes = txqi->tin.tx_bytes;
3759 }
3760
3761 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3762 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3763 txqstats->tx_packets = txqi->tin.tx_packets;
3764 }
3765 }
3766
3767 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3768 struct wireless_dev *wdev,
3769 struct cfg80211_txq_stats *txqstats)
3770 {
3771 struct ieee80211_local *local = wiphy_priv(wiphy);
3772 struct ieee80211_sub_if_data *sdata;
3773 int ret = 0;
3774
3775 if (!local->ops->wake_tx_queue)
3776 return 1;
3777
3778 spin_lock_bh(&local->fq.lock);
3779 rcu_read_lock();
3780
3781 if (wdev) {
3782 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3783 if (!sdata->vif.txq) {
3784 ret = 1;
3785 goto out;
3786 }
3787 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3788 } else {
3789 /* phy stats */
3790 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3791 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3792 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3793 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3794 BIT(NL80211_TXQ_STATS_COLLISIONS) |
3795 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3796 txqstats->backlog_packets = local->fq.backlog;
3797 txqstats->backlog_bytes = local->fq.memory_usage;
3798 txqstats->overlimit = local->fq.overlimit;
3799 txqstats->overmemory = local->fq.overmemory;
3800 txqstats->collisions = local->fq.collisions;
3801 txqstats->max_flows = local->fq.flows_cnt;
3802 }
3803
3804 out:
3805 rcu_read_unlock();
3806 spin_unlock_bh(&local->fq.lock);
3807
3808 return ret;
3809 }
3810
3811 const struct cfg80211_ops mac80211_config_ops = {
3812 .add_virtual_intf = ieee80211_add_iface,
3813 .del_virtual_intf = ieee80211_del_iface,
3814 .change_virtual_intf = ieee80211_change_iface,
3815 .start_p2p_device = ieee80211_start_p2p_device,
3816 .stop_p2p_device = ieee80211_stop_p2p_device,
3817 .add_key = ieee80211_add_key,
3818 .del_key = ieee80211_del_key,
3819 .get_key = ieee80211_get_key,
3820 .set_default_key = ieee80211_config_default_key,
3821 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3822 .start_ap = ieee80211_start_ap,
3823 .change_beacon = ieee80211_change_beacon,
3824 .stop_ap = ieee80211_stop_ap,
3825 .add_station = ieee80211_add_station,
3826 .del_station = ieee80211_del_station,
3827 .change_station = ieee80211_change_station,
3828 .get_station = ieee80211_get_station,
3829 .dump_station = ieee80211_dump_station,
3830 .dump_survey = ieee80211_dump_survey,
3831 #ifdef CONFIG_MAC80211_MESH
3832 .add_mpath = ieee80211_add_mpath,
3833 .del_mpath = ieee80211_del_mpath,
3834 .change_mpath = ieee80211_change_mpath,
3835 .get_mpath = ieee80211_get_mpath,
3836 .dump_mpath = ieee80211_dump_mpath,
3837 .get_mpp = ieee80211_get_mpp,
3838 .dump_mpp = ieee80211_dump_mpp,
3839 .update_mesh_config = ieee80211_update_mesh_config,
3840 .get_mesh_config = ieee80211_get_mesh_config,
3841 .join_mesh = ieee80211_join_mesh,
3842 .leave_mesh = ieee80211_leave_mesh,
3843 #endif
3844 .join_ocb = ieee80211_join_ocb,
3845 .leave_ocb = ieee80211_leave_ocb,
3846 .change_bss = ieee80211_change_bss,
3847 .set_txq_params = ieee80211_set_txq_params,
3848 .set_monitor_channel = ieee80211_set_monitor_channel,
3849 .suspend = ieee80211_suspend,
3850 .resume = ieee80211_resume,
3851 .scan = ieee80211_scan,
3852 .abort_scan = ieee80211_abort_scan,
3853 .sched_scan_start = ieee80211_sched_scan_start,
3854 .sched_scan_stop = ieee80211_sched_scan_stop,
3855 .auth = ieee80211_auth,
3856 .assoc = ieee80211_assoc,
3857 .deauth = ieee80211_deauth,
3858 .disassoc = ieee80211_disassoc,
3859 .join_ibss = ieee80211_join_ibss,
3860 .leave_ibss = ieee80211_leave_ibss,
3861 .set_mcast_rate = ieee80211_set_mcast_rate,
3862 .set_wiphy_params = ieee80211_set_wiphy_params,
3863 .set_tx_power = ieee80211_set_tx_power,
3864 .get_tx_power = ieee80211_get_tx_power,
3865 .set_wds_peer = ieee80211_set_wds_peer,
3866 .rfkill_poll = ieee80211_rfkill_poll,
3867 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3868 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3869 .set_power_mgmt = ieee80211_set_power_mgmt,
3870 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3871 .remain_on_channel = ieee80211_remain_on_channel,
3872 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3873 .mgmt_tx = ieee80211_mgmt_tx,
3874 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3875 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3876 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
3877 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3878 .set_antenna = ieee80211_set_antenna,
3879 .get_antenna = ieee80211_get_antenna,
3880 .set_rekey_data = ieee80211_set_rekey_data,
3881 .tdls_oper = ieee80211_tdls_oper,
3882 .tdls_mgmt = ieee80211_tdls_mgmt,
3883 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3884 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3885 .probe_client = ieee80211_probe_client,
3886 .set_noack_map = ieee80211_set_noack_map,
3887 #ifdef CONFIG_PM
3888 .set_wakeup = ieee80211_set_wakeup,
3889 #endif
3890 .get_channel = ieee80211_cfg_get_channel,
3891 .start_radar_detection = ieee80211_start_radar_detection,
3892 .channel_switch = ieee80211_channel_switch,
3893 .set_qos_map = ieee80211_set_qos_map,
3894 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3895 .add_tx_ts = ieee80211_add_tx_ts,
3896 .del_tx_ts = ieee80211_del_tx_ts,
3897 .start_nan = ieee80211_start_nan,
3898 .stop_nan = ieee80211_stop_nan,
3899 .nan_change_conf = ieee80211_nan_change_conf,
3900 .add_nan_func = ieee80211_add_nan_func,
3901 .del_nan_func = ieee80211_del_nan_func,
3902 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
3903 .tx_control_port = ieee80211_tx_control_port,
3904 .get_txq_stats = ieee80211_get_txq_stats,
3905 };
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