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Linux 5.7.7
[linux/fpc-iii.git] / net / mac80211 / cfg.c
blob0f72813fed53e4d94f8f1923da8284a91cd0346a
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * mac80211 configuration hooks for cfg80211
4 *
5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
6 * Copyright 2013-2015 Intel Mobile Communications GmbH
7 * Copyright (C) 2015-2017 Intel Deutschland GmbH
8 * Copyright (C) 2018-2020 Intel Corporation
9 */
10
11 #include <linux/ieee80211.h>
12 #include <linux/nl80211.h>
13 #include <linux/rtnetlink.h>
14 #include <linux/slab.h>
15 #include <net/net_namespace.h>
16 #include <linux/rcupdate.h>
17 #include <linux/fips.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 && params->use_4addr == 0) {
162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
163 ieee80211_check_fast_rx_iface(sdata);
164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
165 sdata->u.mgd.use_4addr = params->use_4addr;
166 }
167
168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
169 ret = ieee80211_set_mon_options(sdata, params);
170 if (ret)
171 return ret;
172 }
173
174 return 0;
175 }
176
177 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
178 struct wireless_dev *wdev)
179 {
180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
181 int ret;
182
183 mutex_lock(&sdata->local->chanctx_mtx);
184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
185 mutex_unlock(&sdata->local->chanctx_mtx);
186 if (ret < 0)
187 return ret;
188
189 return ieee80211_do_open(wdev, true);
190 }
191
192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
193 struct wireless_dev *wdev)
194 {
195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
196 }
197
198 static int ieee80211_start_nan(struct wiphy *wiphy,
199 struct wireless_dev *wdev,
200 struct cfg80211_nan_conf *conf)
201 {
202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
203 int ret;
204
205 mutex_lock(&sdata->local->chanctx_mtx);
206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
207 mutex_unlock(&sdata->local->chanctx_mtx);
208 if (ret < 0)
209 return ret;
210
211 ret = ieee80211_do_open(wdev, true);
212 if (ret)
213 return ret;
214
215 ret = drv_start_nan(sdata->local, sdata, conf);
216 if (ret)
217 ieee80211_sdata_stop(sdata);
218
219 sdata->u.nan.conf = *conf;
220
221 return ret;
222 }
223
224 static void ieee80211_stop_nan(struct wiphy *wiphy,
225 struct wireless_dev *wdev)
226 {
227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
228
229 drv_stop_nan(sdata->local, sdata);
230 ieee80211_sdata_stop(sdata);
231 }
232
233 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
234 struct wireless_dev *wdev,
235 struct cfg80211_nan_conf *conf,
236 u32 changes)
237 {
238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
239 struct cfg80211_nan_conf new_conf;
240 int ret = 0;
241
242 if (sdata->vif.type != NL80211_IFTYPE_NAN)
243 return -EOPNOTSUPP;
244
245 if (!ieee80211_sdata_running(sdata))
246 return -ENETDOWN;
247
248 new_conf = sdata->u.nan.conf;
249
250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
251 new_conf.master_pref = conf->master_pref;
252
253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
254 new_conf.bands = conf->bands;
255
256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
257 if (!ret)
258 sdata->u.nan.conf = new_conf;
259
260 return ret;
261 }
262
263 static int ieee80211_add_nan_func(struct wiphy *wiphy,
264 struct wireless_dev *wdev,
265 struct cfg80211_nan_func *nan_func)
266 {
267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
268 int ret;
269
270 if (sdata->vif.type != NL80211_IFTYPE_NAN)
271 return -EOPNOTSUPP;
272
273 if (!ieee80211_sdata_running(sdata))
274 return -ENETDOWN;
275
276 spin_lock_bh(&sdata->u.nan.func_lock);
277
278 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
280 GFP_ATOMIC);
281 spin_unlock_bh(&sdata->u.nan.func_lock);
282
283 if (ret < 0)
284 return ret;
285
286 nan_func->instance_id = ret;
287
288 WARN_ON(nan_func->instance_id == 0);
289
290 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
291 if (ret) {
292 spin_lock_bh(&sdata->u.nan.func_lock);
293 idr_remove(&sdata->u.nan.function_inst_ids,
294 nan_func->instance_id);
295 spin_unlock_bh(&sdata->u.nan.func_lock);
296 }
297
298 return ret;
299 }
300
301 static struct cfg80211_nan_func *
302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
303 u64 cookie)
304 {
305 struct cfg80211_nan_func *func;
306 int id;
307
308 lockdep_assert_held(&sdata->u.nan.func_lock);
309
310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
311 if (func->cookie == cookie)
312 return func;
313 }
314
315 return NULL;
316 }
317
318 static void ieee80211_del_nan_func(struct wiphy *wiphy,
319 struct wireless_dev *wdev, u64 cookie)
320 {
321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
322 struct cfg80211_nan_func *func;
323 u8 instance_id = 0;
324
325 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
326 !ieee80211_sdata_running(sdata))
327 return;
328
329 spin_lock_bh(&sdata->u.nan.func_lock);
330
331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
332 if (func)
333 instance_id = func->instance_id;
334
335 spin_unlock_bh(&sdata->u.nan.func_lock);
336
337 if (instance_id)
338 drv_del_nan_func(sdata->local, sdata, instance_id);
339 }
340
341 static int ieee80211_set_noack_map(struct wiphy *wiphy,
342 struct net_device *dev,
343 u16 noack_map)
344 {
345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
346
347 sdata->noack_map = noack_map;
348
349 ieee80211_check_fast_xmit_iface(sdata);
350
351 return 0;
352 }
353
354 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
355 const u8 *mac_addr, u8 key_idx)
356 {
357 struct ieee80211_local *local = sdata->local;
358 struct ieee80211_key *key;
359 struct sta_info *sta;
360 int ret = -EINVAL;
361
362 if (!wiphy_ext_feature_isset(local->hw.wiphy,
363 NL80211_EXT_FEATURE_EXT_KEY_ID))
364 return -EINVAL;
365
366 sta = sta_info_get_bss(sdata, mac_addr);
367
368 if (!sta)
369 return -EINVAL;
370
371 if (sta->ptk_idx == key_idx)
372 return 0;
373
374 mutex_lock(&local->key_mtx);
375 key = key_mtx_dereference(local, sta->ptk[key_idx]);
376
377 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
378 ret = ieee80211_set_tx_key(key);
379
380 mutex_unlock(&local->key_mtx);
381 return ret;
382 }
383
384 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
385 u8 key_idx, bool pairwise, const u8 *mac_addr,
386 struct key_params *params)
387 {
388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
389 struct ieee80211_local *local = sdata->local;
390 struct sta_info *sta = NULL;
391 const struct ieee80211_cipher_scheme *cs = NULL;
392 struct ieee80211_key *key;
393 int err;
394
395 if (!ieee80211_sdata_running(sdata))
396 return -ENETDOWN;
397
398 if (pairwise && params->mode == NL80211_KEY_SET_TX)
399 return ieee80211_set_tx(sdata, mac_addr, key_idx);
400
401 /* reject WEP and TKIP keys if WEP failed to initialize */
402 switch (params->cipher) {
403 case WLAN_CIPHER_SUITE_WEP40:
404 case WLAN_CIPHER_SUITE_TKIP:
405 case WLAN_CIPHER_SUITE_WEP104:
406 if (WARN_ON_ONCE(fips_enabled))
407 return -EINVAL;
408 case WLAN_CIPHER_SUITE_CCMP:
409 case WLAN_CIPHER_SUITE_CCMP_256:
410 case WLAN_CIPHER_SUITE_AES_CMAC:
411 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
412 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
413 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
414 case WLAN_CIPHER_SUITE_GCMP:
415 case WLAN_CIPHER_SUITE_GCMP_256:
416 break;
417 default:
418 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
419 break;
420 }
421
422 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
423 params->key, params->seq_len, params->seq,
424 cs);
425 if (IS_ERR(key))
426 return PTR_ERR(key);
427
428 if (pairwise)
429 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
430
431 if (params->mode == NL80211_KEY_NO_TX)
432 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
433
434 mutex_lock(&local->sta_mtx);
435
436 if (mac_addr) {
437 sta = sta_info_get_bss(sdata, mac_addr);
438 /*
439 * The ASSOC test makes sure the driver is ready to
440 * receive the key. When wpa_supplicant has roamed
441 * using FT, it attempts to set the key before
442 * association has completed, this rejects that attempt
443 * so it will set the key again after association.
444 *
445 * TODO: accept the key if we have a station entry and
446 * add it to the device after the station.
447 */
448 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
449 ieee80211_key_free_unused(key);
450 err = -ENOENT;
451 goto out_unlock;
452 }
453 }
454
455 switch (sdata->vif.type) {
456 case NL80211_IFTYPE_STATION:
457 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
458 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
459 break;
460 case NL80211_IFTYPE_AP:
461 case NL80211_IFTYPE_AP_VLAN:
462 /* Keys without a station are used for TX only */
463 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
464 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
465 break;
466 case NL80211_IFTYPE_ADHOC:
467 /* no MFP (yet) */
468 break;
469 case NL80211_IFTYPE_MESH_POINT:
470 #ifdef CONFIG_MAC80211_MESH
471 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
472 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
473 break;
474 #endif
475 case NL80211_IFTYPE_WDS:
476 case NL80211_IFTYPE_MONITOR:
477 case NL80211_IFTYPE_P2P_DEVICE:
478 case NL80211_IFTYPE_NAN:
479 case NL80211_IFTYPE_UNSPECIFIED:
480 case NUM_NL80211_IFTYPES:
481 case NL80211_IFTYPE_P2P_CLIENT:
482 case NL80211_IFTYPE_P2P_GO:
483 case NL80211_IFTYPE_OCB:
484 /* shouldn't happen */
485 WARN_ON_ONCE(1);
486 break;
487 }
488
489 if (sta)
490 sta->cipher_scheme = cs;
491
492 err = ieee80211_key_link(key, sdata, sta);
493
494 out_unlock:
495 mutex_unlock(&local->sta_mtx);
496
497 return err;
498 }
499
500 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
501 u8 key_idx, bool pairwise, const u8 *mac_addr)
502 {
503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
504 struct ieee80211_local *local = sdata->local;
505 struct sta_info *sta;
506 struct ieee80211_key *key = NULL;
507 int ret;
508
509 mutex_lock(&local->sta_mtx);
510 mutex_lock(&local->key_mtx);
511
512 if (mac_addr) {
513 ret = -ENOENT;
514
515 sta = sta_info_get_bss(sdata, mac_addr);
516 if (!sta)
517 goto out_unlock;
518
519 if (pairwise)
520 key = key_mtx_dereference(local, sta->ptk[key_idx]);
521 else
522 key = key_mtx_dereference(local, sta->gtk[key_idx]);
523 } else
524 key = key_mtx_dereference(local, sdata->keys[key_idx]);
525
526 if (!key) {
527 ret = -ENOENT;
528 goto out_unlock;
529 }
530
531 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
532
533 ret = 0;
534 out_unlock:
535 mutex_unlock(&local->key_mtx);
536 mutex_unlock(&local->sta_mtx);
537
538 return ret;
539 }
540
541 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
542 u8 key_idx, bool pairwise, const u8 *mac_addr,
543 void *cookie,
544 void (*callback)(void *cookie,
545 struct key_params *params))
546 {
547 struct ieee80211_sub_if_data *sdata;
548 struct sta_info *sta = NULL;
549 u8 seq[6] = {0};
550 struct key_params params;
551 struct ieee80211_key *key = NULL;
552 u64 pn64;
553 u32 iv32;
554 u16 iv16;
555 int err = -ENOENT;
556 struct ieee80211_key_seq kseq = {};
557
558 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
559
560 rcu_read_lock();
561
562 if (mac_addr) {
563 sta = sta_info_get_bss(sdata, mac_addr);
564 if (!sta)
565 goto out;
566
567 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
568 key = rcu_dereference(sta->ptk[key_idx]);
569 else if (!pairwise &&
570 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
571 NUM_DEFAULT_BEACON_KEYS)
572 key = rcu_dereference(sta->gtk[key_idx]);
573 } else
574 key = rcu_dereference(sdata->keys[key_idx]);
575
576 if (!key)
577 goto out;
578
579 memset(&params, 0, sizeof(params));
580
581 params.cipher = key->conf.cipher;
582
583 switch (key->conf.cipher) {
584 case WLAN_CIPHER_SUITE_TKIP:
585 pn64 = atomic64_read(&key->conf.tx_pn);
586 iv32 = TKIP_PN_TO_IV32(pn64);
587 iv16 = TKIP_PN_TO_IV16(pn64);
588
589 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
590 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
591 drv_get_key_seq(sdata->local, key, &kseq);
592 iv32 = kseq.tkip.iv32;
593 iv16 = kseq.tkip.iv16;
594 }
595
596 seq[0] = iv16 & 0xff;
597 seq[1] = (iv16 >> 8) & 0xff;
598 seq[2] = iv32 & 0xff;
599 seq[3] = (iv32 >> 8) & 0xff;
600 seq[4] = (iv32 >> 16) & 0xff;
601 seq[5] = (iv32 >> 24) & 0xff;
602 params.seq = seq;
603 params.seq_len = 6;
604 break;
605 case WLAN_CIPHER_SUITE_CCMP:
606 case WLAN_CIPHER_SUITE_CCMP_256:
607 case WLAN_CIPHER_SUITE_AES_CMAC:
608 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
609 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
610 offsetof(typeof(kseq), aes_cmac));
611 /* fall through */
612 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
613 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
614 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
615 offsetof(typeof(kseq), aes_gmac));
616 /* fall through */
617 case WLAN_CIPHER_SUITE_GCMP:
618 case WLAN_CIPHER_SUITE_GCMP_256:
619 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
620 offsetof(typeof(kseq), gcmp));
621
622 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
623 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
624 drv_get_key_seq(sdata->local, key, &kseq);
625 memcpy(seq, kseq.ccmp.pn, 6);
626 } else {
627 pn64 = atomic64_read(&key->conf.tx_pn);
628 seq[0] = pn64;
629 seq[1] = pn64 >> 8;
630 seq[2] = pn64 >> 16;
631 seq[3] = pn64 >> 24;
632 seq[4] = pn64 >> 32;
633 seq[5] = pn64 >> 40;
634 }
635 params.seq = seq;
636 params.seq_len = 6;
637 break;
638 default:
639 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
640 break;
641 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
642 break;
643 drv_get_key_seq(sdata->local, key, &kseq);
644 params.seq = kseq.hw.seq;
645 params.seq_len = kseq.hw.seq_len;
646 break;
647 }
648
649 params.key = key->conf.key;
650 params.key_len = key->conf.keylen;
651
652 callback(cookie, &params);
653 err = 0;
654
655 out:
656 rcu_read_unlock();
657 return err;
658 }
659
660 static int ieee80211_config_default_key(struct wiphy *wiphy,
661 struct net_device *dev,
662 u8 key_idx, bool uni,
663 bool multi)
664 {
665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
666
667 ieee80211_set_default_key(sdata, key_idx, uni, multi);
668
669 return 0;
670 }
671
672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
673 struct net_device *dev,
674 u8 key_idx)
675 {
676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
677
678 ieee80211_set_default_mgmt_key(sdata, key_idx);
679
680 return 0;
681 }
682
683 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
684 struct net_device *dev,
685 u8 key_idx)
686 {
687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
688
689 ieee80211_set_default_beacon_key(sdata, key_idx);
690
691 return 0;
692 }
693
694 void sta_set_rate_info_tx(struct sta_info *sta,
695 const struct ieee80211_tx_rate *rate,
696 struct rate_info *rinfo)
697 {
698 rinfo->flags = 0;
699 if (rate->flags & IEEE80211_TX_RC_MCS) {
700 rinfo->flags |= RATE_INFO_FLAGS_MCS;
701 rinfo->mcs = rate->idx;
702 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
703 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
704 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
705 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
706 } else {
707 struct ieee80211_supported_band *sband;
708 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
709 u16 brate;
710
711 sband = ieee80211_get_sband(sta->sdata);
712 if (sband) {
713 brate = sband->bitrates[rate->idx].bitrate;
714 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
715 }
716 }
717 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
718 rinfo->bw = RATE_INFO_BW_40;
719 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
720 rinfo->bw = RATE_INFO_BW_80;
721 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
722 rinfo->bw = RATE_INFO_BW_160;
723 else
724 rinfo->bw = RATE_INFO_BW_20;
725 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
726 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
727 }
728
729 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
730 int idx, u8 *mac, struct station_info *sinfo)
731 {
732 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
733 struct ieee80211_local *local = sdata->local;
734 struct sta_info *sta;
735 int ret = -ENOENT;
736
737 mutex_lock(&local->sta_mtx);
738
739 sta = sta_info_get_by_idx(sdata, idx);
740 if (sta) {
741 ret = 0;
742 memcpy(mac, sta->sta.addr, ETH_ALEN);
743 sta_set_sinfo(sta, sinfo, true);
744 }
745
746 mutex_unlock(&local->sta_mtx);
747
748 return ret;
749 }
750
751 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
752 int idx, struct survey_info *survey)
753 {
754 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
755
756 return drv_get_survey(local, idx, survey);
757 }
758
759 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
760 const u8 *mac, struct station_info *sinfo)
761 {
762 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
763 struct ieee80211_local *local = sdata->local;
764 struct sta_info *sta;
765 int ret = -ENOENT;
766
767 mutex_lock(&local->sta_mtx);
768
769 sta = sta_info_get_bss(sdata, mac);
770 if (sta) {
771 ret = 0;
772 sta_set_sinfo(sta, sinfo, true);
773 }
774
775 mutex_unlock(&local->sta_mtx);
776
777 return ret;
778 }
779
780 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
781 struct cfg80211_chan_def *chandef)
782 {
783 struct ieee80211_local *local = wiphy_priv(wiphy);
784 struct ieee80211_sub_if_data *sdata;
785 int ret = 0;
786
787 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
788 return 0;
789
790 mutex_lock(&local->mtx);
791 if (local->use_chanctx) {
792 sdata = rtnl_dereference(local->monitor_sdata);
793 if (sdata) {
794 ieee80211_vif_release_channel(sdata);
795 ret = ieee80211_vif_use_channel(sdata, chandef,
796 IEEE80211_CHANCTX_EXCLUSIVE);
797 }
798 } else if (local->open_count == local->monitors) {
799 local->_oper_chandef = *chandef;
800 ieee80211_hw_config(local, 0);
801 }
802
803 if (ret == 0)
804 local->monitor_chandef = *chandef;
805 mutex_unlock(&local->mtx);
806
807 return ret;
808 }
809
810 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
811 const u8 *resp, size_t resp_len,
812 const struct ieee80211_csa_settings *csa)
813 {
814 struct probe_resp *new, *old;
815
816 if (!resp || !resp_len)
817 return 1;
818
819 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
820
821 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
822 if (!new)
823 return -ENOMEM;
824
825 new->len = resp_len;
826 memcpy(new->data, resp, resp_len);
827
828 if (csa)
829 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
830 csa->n_counter_offsets_presp *
831 sizeof(new->csa_counter_offsets[0]));
832
833 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
834 if (old)
835 kfree_rcu(old, rcu_head);
836
837 return 0;
838 }
839
840 static int ieee80211_set_ftm_responder_params(
841 struct ieee80211_sub_if_data *sdata,
842 const u8 *lci, size_t lci_len,
843 const u8 *civicloc, size_t civicloc_len)
844 {
845 struct ieee80211_ftm_responder_params *new, *old;
846 struct ieee80211_bss_conf *bss_conf;
847 u8 *pos;
848 int len;
849
850 if (!lci_len && !civicloc_len)
851 return 0;
852
853 bss_conf = &sdata->vif.bss_conf;
854 old = bss_conf->ftmr_params;
855 len = lci_len + civicloc_len;
856
857 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
858 if (!new)
859 return -ENOMEM;
860
861 pos = (u8 *)(new + 1);
862 if (lci_len) {
863 new->lci_len = lci_len;
864 new->lci = pos;
865 memcpy(pos, lci, lci_len);
866 pos += lci_len;
867 }
868
869 if (civicloc_len) {
870 new->civicloc_len = civicloc_len;
871 new->civicloc = pos;
872 memcpy(pos, civicloc, civicloc_len);
873 pos += civicloc_len;
874 }
875
876 bss_conf->ftmr_params = new;
877 kfree(old);
878
879 return 0;
880 }
881
882 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
883 struct cfg80211_beacon_data *params,
884 const struct ieee80211_csa_settings *csa)
885 {
886 struct beacon_data *new, *old;
887 int new_head_len, new_tail_len;
888 int size, err;
889 u32 changed = BSS_CHANGED_BEACON;
890
891 old = sdata_dereference(sdata->u.ap.beacon, sdata);
892
893
894 /* Need to have a beacon head if we don't have one yet */
895 if (!params->head && !old)
896 return -EINVAL;
897
898 /* new or old head? */
899 if (params->head)
900 new_head_len = params->head_len;
901 else
902 new_head_len = old->head_len;
903
904 /* new or old tail? */
905 if (params->tail || !old)
906 /* params->tail_len will be zero for !params->tail */
907 new_tail_len = params->tail_len;
908 else
909 new_tail_len = old->tail_len;
910
911 size = sizeof(*new) + new_head_len + new_tail_len;
912
913 new = kzalloc(size, GFP_KERNEL);
914 if (!new)
915 return -ENOMEM;
916
917 /* start filling the new info now */
918
919 /*
920 * pointers go into the block we allocated,
921 * memory is | beacon_data | head | tail |
922 */
923 new->head = ((u8 *) new) + sizeof(*new);
924 new->tail = new->head + new_head_len;
925 new->head_len = new_head_len;
926 new->tail_len = new_tail_len;
927
928 if (csa) {
929 new->csa_current_counter = csa->count;
930 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
931 csa->n_counter_offsets_beacon *
932 sizeof(new->csa_counter_offsets[0]));
933 }
934
935 /* copy in head */
936 if (params->head)
937 memcpy(new->head, params->head, new_head_len);
938 else
939 memcpy(new->head, old->head, new_head_len);
940
941 /* copy in optional tail */
942 if (params->tail)
943 memcpy(new->tail, params->tail, new_tail_len);
944 else
945 if (old)
946 memcpy(new->tail, old->tail, new_tail_len);
947
948 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
949 params->probe_resp_len, csa);
950 if (err < 0) {
951 kfree(new);
952 return err;
953 }
954 if (err == 0)
955 changed |= BSS_CHANGED_AP_PROBE_RESP;
956
957 if (params->ftm_responder != -1) {
958 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
959 err = ieee80211_set_ftm_responder_params(sdata,
960 params->lci,
961 params->lci_len,
962 params->civicloc,
963 params->civicloc_len);
964
965 if (err < 0) {
966 kfree(new);
967 return err;
968 }
969
970 changed |= BSS_CHANGED_FTM_RESPONDER;
971 }
972
973 rcu_assign_pointer(sdata->u.ap.beacon, new);
974
975 if (old)
976 kfree_rcu(old, rcu_head);
977
978 return changed;
979 }
980
981 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
982 struct cfg80211_ap_settings *params)
983 {
984 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
985 struct ieee80211_local *local = sdata->local;
986 struct beacon_data *old;
987 struct ieee80211_sub_if_data *vlan;
988 u32 changed = BSS_CHANGED_BEACON_INT |
989 BSS_CHANGED_BEACON_ENABLED |
990 BSS_CHANGED_BEACON |
991 BSS_CHANGED_SSID |
992 BSS_CHANGED_P2P_PS |
993 BSS_CHANGED_TXPOWER |
994 BSS_CHANGED_TWT |
995 BSS_CHANGED_HE_OBSS_PD |
996 BSS_CHANGED_HE_BSS_COLOR;
997 int err;
998 int prev_beacon_int;
999
1000 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1001 if (old)
1002 return -EALREADY;
1003
1004 if (params->smps_mode != NL80211_SMPS_OFF)
1005 return -ENOTSUPP;
1006
1007 sdata->smps_mode = IEEE80211_SMPS_OFF;
1008
1009 sdata->needed_rx_chains = sdata->local->rx_chains;
1010
1011 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1012 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1013
1014 if (params->he_cap && params->he_oper) {
1015 sdata->vif.bss_conf.he_support = true;
1016 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1017 le32_get_bits(params->he_oper->he_oper_params,
1018 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1019 sdata->vif.bss_conf.frame_time_rts_th =
1020 le32_get_bits(params->he_oper->he_oper_params,
1021 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1022 }
1023
1024 mutex_lock(&local->mtx);
1025 err = ieee80211_vif_use_channel(sdata, &params->chandef,
1026 IEEE80211_CHANCTX_SHARED);
1027 if (!err)
1028 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1029 mutex_unlock(&local->mtx);
1030 if (err) {
1031 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1032 return err;
1033 }
1034
1035 /*
1036 * Apply control port protocol, this allows us to
1037 * not encrypt dynamic WEP control frames.
1038 */
1039 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1040 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1041 sdata->control_port_over_nl80211 =
1042 params->crypto.control_port_over_nl80211;
1043 sdata->control_port_no_preauth =
1044 params->crypto.control_port_no_preauth;
1045 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1046 &params->crypto,
1047 sdata->vif.type);
1048
1049 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1050 vlan->control_port_protocol =
1051 params->crypto.control_port_ethertype;
1052 vlan->control_port_no_encrypt =
1053 params->crypto.control_port_no_encrypt;
1054 vlan->control_port_over_nl80211 =
1055 params->crypto.control_port_over_nl80211;
1056 vlan->control_port_no_preauth =
1057 params->crypto.control_port_no_preauth;
1058 vlan->encrypt_headroom =
1059 ieee80211_cs_headroom(sdata->local,
1060 &params->crypto,
1061 vlan->vif.type);
1062 }
1063
1064 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1065 sdata->vif.bss_conf.enable_beacon = true;
1066 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1067 sdata->vif.bss_conf.twt_responder = params->twt_responder;
1068 memcpy(&sdata->vif.bss_conf.he_obss_pd, &params->he_obss_pd,
1069 sizeof(struct ieee80211_he_obss_pd));
1070 memcpy(&sdata->vif.bss_conf.he_bss_color, &params->he_bss_color,
1071 sizeof(struct ieee80211_he_bss_color));
1072
1073 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1074 if (params->ssid_len)
1075 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1076 params->ssid_len);
1077 sdata->vif.bss_conf.hidden_ssid =
1078 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1079
1080 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1081 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1082 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1083 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1084 if (params->p2p_opp_ps)
1085 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1086 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1087
1088 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1089 if (err < 0) {
1090 ieee80211_vif_release_channel(sdata);
1091 return err;
1092 }
1093 changed |= err;
1094
1095 err = drv_start_ap(sdata->local, sdata);
1096 if (err) {
1097 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1098
1099 if (old)
1100 kfree_rcu(old, rcu_head);
1101 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1102 ieee80211_vif_release_channel(sdata);
1103 return err;
1104 }
1105
1106 ieee80211_recalc_dtim(local, sdata);
1107 ieee80211_bss_info_change_notify(sdata, changed);
1108
1109 netif_carrier_on(dev);
1110 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1111 netif_carrier_on(vlan->dev);
1112
1113 return 0;
1114 }
1115
1116 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1117 struct cfg80211_beacon_data *params)
1118 {
1119 struct ieee80211_sub_if_data *sdata;
1120 struct beacon_data *old;
1121 int err;
1122
1123 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1124 sdata_assert_lock(sdata);
1125
1126 /* don't allow changing the beacon while CSA is in place - offset
1127 * of channel switch counter may change
1128 */
1129 if (sdata->vif.csa_active)
1130 return -EBUSY;
1131
1132 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1133 if (!old)
1134 return -ENOENT;
1135
1136 err = ieee80211_assign_beacon(sdata, params, NULL);
1137 if (err < 0)
1138 return err;
1139 ieee80211_bss_info_change_notify(sdata, err);
1140 return 0;
1141 }
1142
1143 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1144 {
1145 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1146 struct ieee80211_sub_if_data *vlan;
1147 struct ieee80211_local *local = sdata->local;
1148 struct beacon_data *old_beacon;
1149 struct probe_resp *old_probe_resp;
1150 struct cfg80211_chan_def chandef;
1151
1152 sdata_assert_lock(sdata);
1153
1154 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1155 if (!old_beacon)
1156 return -ENOENT;
1157 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1158
1159 /* abort any running channel switch */
1160 mutex_lock(&local->mtx);
1161 sdata->vif.csa_active = false;
1162 if (sdata->csa_block_tx) {
1163 ieee80211_wake_vif_queues(local, sdata,
1164 IEEE80211_QUEUE_STOP_REASON_CSA);
1165 sdata->csa_block_tx = false;
1166 }
1167
1168 mutex_unlock(&local->mtx);
1169
1170 kfree(sdata->u.ap.next_beacon);
1171 sdata->u.ap.next_beacon = NULL;
1172
1173 /* turn off carrier for this interface and dependent VLANs */
1174 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1175 netif_carrier_off(vlan->dev);
1176 netif_carrier_off(dev);
1177
1178 /* remove beacon and probe response */
1179 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1180 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1181 kfree_rcu(old_beacon, rcu_head);
1182 if (old_probe_resp)
1183 kfree_rcu(old_probe_resp, rcu_head);
1184
1185 kfree(sdata->vif.bss_conf.ftmr_params);
1186 sdata->vif.bss_conf.ftmr_params = NULL;
1187
1188 __sta_info_flush(sdata, true);
1189 ieee80211_free_keys(sdata, true);
1190
1191 sdata->vif.bss_conf.enable_beacon = false;
1192 sdata->vif.bss_conf.ssid_len = 0;
1193 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1194 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1195
1196 if (sdata->wdev.cac_started) {
1197 chandef = sdata->vif.bss_conf.chandef;
1198 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1199 cfg80211_cac_event(sdata->dev, &chandef,
1200 NL80211_RADAR_CAC_ABORTED,
1201 GFP_KERNEL);
1202 }
1203
1204 drv_stop_ap(sdata->local, sdata);
1205
1206 /* free all potentially still buffered bcast frames */
1207 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1208 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1209
1210 mutex_lock(&local->mtx);
1211 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1212 ieee80211_vif_release_channel(sdata);
1213 mutex_unlock(&local->mtx);
1214
1215 return 0;
1216 }
1217
1218 static int sta_apply_auth_flags(struct ieee80211_local *local,
1219 struct sta_info *sta,
1220 u32 mask, u32 set)
1221 {
1222 int ret;
1223
1224 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1225 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1226 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1227 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1228 if (ret)
1229 return ret;
1230 }
1231
1232 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1233 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1234 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1235 /*
1236 * When peer becomes associated, init rate control as
1237 * well. Some drivers require rate control initialized
1238 * before drv_sta_state() is called.
1239 */
1240 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1241 rate_control_rate_init(sta);
1242
1243 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1244 if (ret)
1245 return ret;
1246 }
1247
1248 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1249 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1250 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1251 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1252 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1253 else
1254 ret = 0;
1255 if (ret)
1256 return ret;
1257 }
1258
1259 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1260 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1261 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1262 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1263 if (ret)
1264 return ret;
1265 }
1266
1267 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1268 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1269 test_sta_flag(sta, WLAN_STA_AUTH)) {
1270 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1271 if (ret)
1272 return ret;
1273 }
1274
1275 return 0;
1276 }
1277
1278 static void sta_apply_mesh_params(struct ieee80211_local *local,
1279 struct sta_info *sta,
1280 struct station_parameters *params)
1281 {
1282 #ifdef CONFIG_MAC80211_MESH
1283 struct ieee80211_sub_if_data *sdata = sta->sdata;
1284 u32 changed = 0;
1285
1286 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1287 switch (params->plink_state) {
1288 case NL80211_PLINK_ESTAB:
1289 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1290 changed = mesh_plink_inc_estab_count(sdata);
1291 sta->mesh->plink_state = params->plink_state;
1292 sta->mesh->aid = params->peer_aid;
1293
1294 ieee80211_mps_sta_status_update(sta);
1295 changed |= ieee80211_mps_set_sta_local_pm(sta,
1296 sdata->u.mesh.mshcfg.power_mode);
1297
1298 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1299 /* init at low value */
1300 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1301
1302 break;
1303 case NL80211_PLINK_LISTEN:
1304 case NL80211_PLINK_BLOCKED:
1305 case NL80211_PLINK_OPN_SNT:
1306 case NL80211_PLINK_OPN_RCVD:
1307 case NL80211_PLINK_CNF_RCVD:
1308 case NL80211_PLINK_HOLDING:
1309 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1310 changed = mesh_plink_dec_estab_count(sdata);
1311 sta->mesh->plink_state = params->plink_state;
1312
1313 ieee80211_mps_sta_status_update(sta);
1314 changed |= ieee80211_mps_set_sta_local_pm(sta,
1315 NL80211_MESH_POWER_UNKNOWN);
1316 break;
1317 default:
1318 /* nothing */
1319 break;
1320 }
1321 }
1322
1323 switch (params->plink_action) {
1324 case NL80211_PLINK_ACTION_NO_ACTION:
1325 /* nothing */
1326 break;
1327 case NL80211_PLINK_ACTION_OPEN:
1328 changed |= mesh_plink_open(sta);
1329 break;
1330 case NL80211_PLINK_ACTION_BLOCK:
1331 changed |= mesh_plink_block(sta);
1332 break;
1333 }
1334
1335 if (params->local_pm)
1336 changed |= ieee80211_mps_set_sta_local_pm(sta,
1337 params->local_pm);
1338
1339 ieee80211_mbss_info_change_notify(sdata, changed);
1340 #endif
1341 }
1342
1343 static int sta_apply_parameters(struct ieee80211_local *local,
1344 struct sta_info *sta,
1345 struct station_parameters *params)
1346 {
1347 int ret = 0;
1348 struct ieee80211_supported_band *sband;
1349 struct ieee80211_sub_if_data *sdata = sta->sdata;
1350 u32 mask, set;
1351
1352 sband = ieee80211_get_sband(sdata);
1353 if (!sband)
1354 return -EINVAL;
1355
1356 mask = params->sta_flags_mask;
1357 set = params->sta_flags_set;
1358
1359 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1360 /*
1361 * In mesh mode, ASSOCIATED isn't part of the nl80211
1362 * API but must follow AUTHENTICATED for driver state.
1363 */
1364 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1365 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1366 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1367 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1368 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1369 /*
1370 * TDLS -- everything follows authorized, but
1371 * only becoming authorized is possible, not
1372 * going back
1373 */
1374 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1375 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1376 BIT(NL80211_STA_FLAG_ASSOCIATED);
1377 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1378 BIT(NL80211_STA_FLAG_ASSOCIATED);
1379 }
1380 }
1381
1382 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1383 local->hw.queues >= IEEE80211_NUM_ACS)
1384 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1385
1386 /* auth flags will be set later for TDLS,
1387 * and for unassociated stations that move to assocaited */
1388 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1389 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1390 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1391 ret = sta_apply_auth_flags(local, sta, mask, set);
1392 if (ret)
1393 return ret;
1394 }
1395
1396 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1397 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1398 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1399 else
1400 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1401 }
1402
1403 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1404 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1405 if (set & BIT(NL80211_STA_FLAG_MFP))
1406 set_sta_flag(sta, WLAN_STA_MFP);
1407 else
1408 clear_sta_flag(sta, WLAN_STA_MFP);
1409 }
1410
1411 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1412 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1413 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1414 else
1415 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1416 }
1417
1418 /* mark TDLS channel switch support, if the AP allows it */
1419 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1420 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1421 params->ext_capab_len >= 4 &&
1422 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1423 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1424
1425 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1426 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1427 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1428 params->ext_capab_len >= 8 &&
1429 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1430 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1431
1432 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1433 sta->sta.uapsd_queues = params->uapsd_queues;
1434 sta->sta.max_sp = params->max_sp;
1435 }
1436
1437 /* The sender might not have sent the last bit, consider it to be 0 */
1438 if (params->ext_capab_len >= 8) {
1439 u8 val = (params->ext_capab[7] &
1440 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1441
1442 /* we did get all the bits, take the MSB as well */
1443 if (params->ext_capab_len >= 9) {
1444 u8 val_msb = params->ext_capab[8] &
1445 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1446 val_msb <<= 1;
1447 val |= val_msb;
1448 }
1449
1450 switch (val) {
1451 case 1:
1452 sta->sta.max_amsdu_subframes = 32;
1453 break;
1454 case 2:
1455 sta->sta.max_amsdu_subframes = 16;
1456 break;
1457 case 3:
1458 sta->sta.max_amsdu_subframes = 8;
1459 break;
1460 default:
1461 sta->sta.max_amsdu_subframes = 0;
1462 }
1463 }
1464
1465 /*
1466 * cfg80211 validates this (1-2007) and allows setting the AID
1467 * only when creating a new station entry
1468 */
1469 if (params->aid)
1470 sta->sta.aid = params->aid;
1471
1472 /*
1473 * Some of the following updates would be racy if called on an
1474 * existing station, via ieee80211_change_station(). However,
1475 * all such changes are rejected by cfg80211 except for updates
1476 * changing the supported rates on an existing but not yet used
1477 * TDLS peer.
1478 */
1479
1480 if (params->listen_interval >= 0)
1481 sta->listen_interval = params->listen_interval;
1482
1483 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1484 sta->sta.txpwr.type = params->txpwr.type;
1485 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1486 sta->sta.txpwr.power = params->txpwr.power;
1487 ret = drv_sta_set_txpwr(local, sdata, sta);
1488 if (ret)
1489 return ret;
1490 }
1491
1492 if (params->supported_rates && params->supported_rates_len) {
1493 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1494 sband, params->supported_rates,
1495 params->supported_rates_len,
1496 &sta->sta.supp_rates[sband->band]);
1497 }
1498
1499 if (params->ht_capa)
1500 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1501 params->ht_capa, sta);
1502
1503 /* VHT can override some HT caps such as the A-MSDU max length */
1504 if (params->vht_capa)
1505 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1506 params->vht_capa, sta);
1507
1508 if (params->he_capa)
1509 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1510 (void *)params->he_capa,
1511 params->he_capa_len, sta);
1512
1513 if (params->opmode_notif_used) {
1514 /* returned value is only needed for rc update, but the
1515 * rc isn't initialized here yet, so ignore it
1516 */
1517 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1518 sband->band);
1519 }
1520
1521 if (params->support_p2p_ps >= 0)
1522 sta->sta.support_p2p_ps = params->support_p2p_ps;
1523
1524 if (ieee80211_vif_is_mesh(&sdata->vif))
1525 sta_apply_mesh_params(local, sta, params);
1526
1527 if (params->airtime_weight)
1528 sta->airtime_weight = params->airtime_weight;
1529
1530 /* set the STA state after all sta info from usermode has been set */
1531 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1532 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1533 ret = sta_apply_auth_flags(local, sta, mask, set);
1534 if (ret)
1535 return ret;
1536 }
1537
1538 return 0;
1539 }
1540
1541 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1542 const u8 *mac,
1543 struct station_parameters *params)
1544 {
1545 struct ieee80211_local *local = wiphy_priv(wiphy);
1546 struct sta_info *sta;
1547 struct ieee80211_sub_if_data *sdata;
1548 int err;
1549
1550 if (params->vlan) {
1551 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1552
1553 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1554 sdata->vif.type != NL80211_IFTYPE_AP)
1555 return -EINVAL;
1556 } else
1557 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1558
1559 if (ether_addr_equal(mac, sdata->vif.addr))
1560 return -EINVAL;
1561
1562 if (!is_valid_ether_addr(mac))
1563 return -EINVAL;
1564
1565 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1566 sdata->vif.type == NL80211_IFTYPE_STATION &&
1567 !sdata->u.mgd.associated)
1568 return -EINVAL;
1569
1570 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1571 if (!sta)
1572 return -ENOMEM;
1573
1574 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1575 sta->sta.tdls = true;
1576
1577 err = sta_apply_parameters(local, sta, params);
1578 if (err) {
1579 sta_info_free(local, sta);
1580 return err;
1581 }
1582
1583 /*
1584 * for TDLS and for unassociated station, rate control should be
1585 * initialized only when rates are known and station is marked
1586 * authorized/associated
1587 */
1588 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1589 test_sta_flag(sta, WLAN_STA_ASSOC))
1590 rate_control_rate_init(sta);
1591
1592 err = sta_info_insert_rcu(sta);
1593 if (err) {
1594 rcu_read_unlock();
1595 return err;
1596 }
1597
1598 rcu_read_unlock();
1599
1600 return 0;
1601 }
1602
1603 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1604 struct station_del_parameters *params)
1605 {
1606 struct ieee80211_sub_if_data *sdata;
1607
1608 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1609
1610 if (params->mac)
1611 return sta_info_destroy_addr_bss(sdata, params->mac);
1612
1613 sta_info_flush(sdata);
1614 return 0;
1615 }
1616
1617 static int ieee80211_change_station(struct wiphy *wiphy,
1618 struct net_device *dev, const u8 *mac,
1619 struct station_parameters *params)
1620 {
1621 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1622 struct ieee80211_local *local = wiphy_priv(wiphy);
1623 struct sta_info *sta;
1624 struct ieee80211_sub_if_data *vlansdata;
1625 enum cfg80211_station_type statype;
1626 int err;
1627
1628 mutex_lock(&local->sta_mtx);
1629
1630 sta = sta_info_get_bss(sdata, mac);
1631 if (!sta) {
1632 err = -ENOENT;
1633 goto out_err;
1634 }
1635
1636 switch (sdata->vif.type) {
1637 case NL80211_IFTYPE_MESH_POINT:
1638 if (sdata->u.mesh.user_mpm)
1639 statype = CFG80211_STA_MESH_PEER_USER;
1640 else
1641 statype = CFG80211_STA_MESH_PEER_KERNEL;
1642 break;
1643 case NL80211_IFTYPE_ADHOC:
1644 statype = CFG80211_STA_IBSS;
1645 break;
1646 case NL80211_IFTYPE_STATION:
1647 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1648 statype = CFG80211_STA_AP_STA;
1649 break;
1650 }
1651 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1652 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1653 else
1654 statype = CFG80211_STA_TDLS_PEER_SETUP;
1655 break;
1656 case NL80211_IFTYPE_AP:
1657 case NL80211_IFTYPE_AP_VLAN:
1658 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1659 statype = CFG80211_STA_AP_CLIENT;
1660 else
1661 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1662 break;
1663 default:
1664 err = -EOPNOTSUPP;
1665 goto out_err;
1666 }
1667
1668 err = cfg80211_check_station_change(wiphy, params, statype);
1669 if (err)
1670 goto out_err;
1671
1672 if (params->vlan && params->vlan != sta->sdata->dev) {
1673 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1674
1675 if (params->vlan->ieee80211_ptr->use_4addr) {
1676 if (vlansdata->u.vlan.sta) {
1677 err = -EBUSY;
1678 goto out_err;
1679 }
1680
1681 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1682 __ieee80211_check_fast_rx_iface(vlansdata);
1683 }
1684
1685 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1686 sta->sdata->u.vlan.sta)
1687 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1688
1689 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1690 ieee80211_vif_dec_num_mcast(sta->sdata);
1691
1692 sta->sdata = vlansdata;
1693 ieee80211_check_fast_xmit(sta);
1694
1695 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1696 ieee80211_vif_inc_num_mcast(sta->sdata);
1697 cfg80211_send_layer2_update(sta->sdata->dev,
1698 sta->sta.addr);
1699 }
1700 }
1701
1702 err = sta_apply_parameters(local, sta, params);
1703 if (err)
1704 goto out_err;
1705
1706 mutex_unlock(&local->sta_mtx);
1707
1708 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1709 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1710 ieee80211_recalc_ps(local);
1711 ieee80211_recalc_ps_vif(sdata);
1712 }
1713
1714 return 0;
1715 out_err:
1716 mutex_unlock(&local->sta_mtx);
1717 return err;
1718 }
1719
1720 #ifdef CONFIG_MAC80211_MESH
1721 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1722 const u8 *dst, const u8 *next_hop)
1723 {
1724 struct ieee80211_sub_if_data *sdata;
1725 struct mesh_path *mpath;
1726 struct sta_info *sta;
1727
1728 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1729
1730 rcu_read_lock();
1731 sta = sta_info_get(sdata, next_hop);
1732 if (!sta) {
1733 rcu_read_unlock();
1734 return -ENOENT;
1735 }
1736
1737 mpath = mesh_path_add(sdata, dst);
1738 if (IS_ERR(mpath)) {
1739 rcu_read_unlock();
1740 return PTR_ERR(mpath);
1741 }
1742
1743 mesh_path_fix_nexthop(mpath, sta);
1744
1745 rcu_read_unlock();
1746 return 0;
1747 }
1748
1749 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1750 const u8 *dst)
1751 {
1752 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1753
1754 if (dst)
1755 return mesh_path_del(sdata, dst);
1756
1757 mesh_path_flush_by_iface(sdata);
1758 return 0;
1759 }
1760
1761 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1762 const u8 *dst, const u8 *next_hop)
1763 {
1764 struct ieee80211_sub_if_data *sdata;
1765 struct mesh_path *mpath;
1766 struct sta_info *sta;
1767
1768 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1769
1770 rcu_read_lock();
1771
1772 sta = sta_info_get(sdata, next_hop);
1773 if (!sta) {
1774 rcu_read_unlock();
1775 return -ENOENT;
1776 }
1777
1778 mpath = mesh_path_lookup(sdata, dst);
1779 if (!mpath) {
1780 rcu_read_unlock();
1781 return -ENOENT;
1782 }
1783
1784 mesh_path_fix_nexthop(mpath, sta);
1785
1786 rcu_read_unlock();
1787 return 0;
1788 }
1789
1790 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1791 struct mpath_info *pinfo)
1792 {
1793 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1794
1795 if (next_hop_sta)
1796 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1797 else
1798 eth_zero_addr(next_hop);
1799
1800 memset(pinfo, 0, sizeof(*pinfo));
1801
1802 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1803
1804 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1805 MPATH_INFO_SN |
1806 MPATH_INFO_METRIC |
1807 MPATH_INFO_EXPTIME |
1808 MPATH_INFO_DISCOVERY_TIMEOUT |
1809 MPATH_INFO_DISCOVERY_RETRIES |
1810 MPATH_INFO_FLAGS |
1811 MPATH_INFO_HOP_COUNT |
1812 MPATH_INFO_PATH_CHANGE;
1813
1814 pinfo->frame_qlen = mpath->frame_queue.qlen;
1815 pinfo->sn = mpath->sn;
1816 pinfo->metric = mpath->metric;
1817 if (time_before(jiffies, mpath->exp_time))
1818 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1819 pinfo->discovery_timeout =
1820 jiffies_to_msecs(mpath->discovery_timeout);
1821 pinfo->discovery_retries = mpath->discovery_retries;
1822 if (mpath->flags & MESH_PATH_ACTIVE)
1823 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1824 if (mpath->flags & MESH_PATH_RESOLVING)
1825 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1826 if (mpath->flags & MESH_PATH_SN_VALID)
1827 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1828 if (mpath->flags & MESH_PATH_FIXED)
1829 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1830 if (mpath->flags & MESH_PATH_RESOLVED)
1831 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1832 pinfo->hop_count = mpath->hop_count;
1833 pinfo->path_change_count = mpath->path_change_count;
1834 }
1835
1836 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1837 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1838
1839 {
1840 struct ieee80211_sub_if_data *sdata;
1841 struct mesh_path *mpath;
1842
1843 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1844
1845 rcu_read_lock();
1846 mpath = mesh_path_lookup(sdata, dst);
1847 if (!mpath) {
1848 rcu_read_unlock();
1849 return -ENOENT;
1850 }
1851 memcpy(dst, mpath->dst, ETH_ALEN);
1852 mpath_set_pinfo(mpath, next_hop, pinfo);
1853 rcu_read_unlock();
1854 return 0;
1855 }
1856
1857 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1858 int idx, u8 *dst, u8 *next_hop,
1859 struct mpath_info *pinfo)
1860 {
1861 struct ieee80211_sub_if_data *sdata;
1862 struct mesh_path *mpath;
1863
1864 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1865
1866 rcu_read_lock();
1867 mpath = mesh_path_lookup_by_idx(sdata, idx);
1868 if (!mpath) {
1869 rcu_read_unlock();
1870 return -ENOENT;
1871 }
1872 memcpy(dst, mpath->dst, ETH_ALEN);
1873 mpath_set_pinfo(mpath, next_hop, pinfo);
1874 rcu_read_unlock();
1875 return 0;
1876 }
1877
1878 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1879 struct mpath_info *pinfo)
1880 {
1881 memset(pinfo, 0, sizeof(*pinfo));
1882 memcpy(mpp, mpath->mpp, ETH_ALEN);
1883
1884 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1885 }
1886
1887 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1888 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1889
1890 {
1891 struct ieee80211_sub_if_data *sdata;
1892 struct mesh_path *mpath;
1893
1894 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1895
1896 rcu_read_lock();
1897 mpath = mpp_path_lookup(sdata, dst);
1898 if (!mpath) {
1899 rcu_read_unlock();
1900 return -ENOENT;
1901 }
1902 memcpy(dst, mpath->dst, ETH_ALEN);
1903 mpp_set_pinfo(mpath, mpp, pinfo);
1904 rcu_read_unlock();
1905 return 0;
1906 }
1907
1908 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1909 int idx, u8 *dst, u8 *mpp,
1910 struct mpath_info *pinfo)
1911 {
1912 struct ieee80211_sub_if_data *sdata;
1913 struct mesh_path *mpath;
1914
1915 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1916
1917 rcu_read_lock();
1918 mpath = mpp_path_lookup_by_idx(sdata, idx);
1919 if (!mpath) {
1920 rcu_read_unlock();
1921 return -ENOENT;
1922 }
1923 memcpy(dst, mpath->dst, ETH_ALEN);
1924 mpp_set_pinfo(mpath, mpp, pinfo);
1925 rcu_read_unlock();
1926 return 0;
1927 }
1928
1929 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1930 struct net_device *dev,
1931 struct mesh_config *conf)
1932 {
1933 struct ieee80211_sub_if_data *sdata;
1934 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1935
1936 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1937 return 0;
1938 }
1939
1940 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1941 {
1942 return (mask >> (parm-1)) & 0x1;
1943 }
1944
1945 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1946 const struct mesh_setup *setup)
1947 {
1948 u8 *new_ie;
1949 const u8 *old_ie;
1950 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1951 struct ieee80211_sub_if_data, u.mesh);
1952
1953 /* allocate information elements */
1954 new_ie = NULL;
1955 old_ie = ifmsh->ie;
1956
1957 if (setup->ie_len) {
1958 new_ie = kmemdup(setup->ie, setup->ie_len,
1959 GFP_KERNEL);
1960 if (!new_ie)
1961 return -ENOMEM;
1962 }
1963 ifmsh->ie_len = setup->ie_len;
1964 ifmsh->ie = new_ie;
1965 kfree(old_ie);
1966
1967 /* now copy the rest of the setup parameters */
1968 ifmsh->mesh_id_len = setup->mesh_id_len;
1969 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1970 ifmsh->mesh_sp_id = setup->sync_method;
1971 ifmsh->mesh_pp_id = setup->path_sel_proto;
1972 ifmsh->mesh_pm_id = setup->path_metric;
1973 ifmsh->user_mpm = setup->user_mpm;
1974 ifmsh->mesh_auth_id = setup->auth_id;
1975 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1976 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1977 if (setup->is_authenticated)
1978 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1979 if (setup->is_secure)
1980 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1981
1982 /* mcast rate setting in Mesh Node */
1983 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1984 sizeof(setup->mcast_rate));
1985 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1986
1987 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1988 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1989
1990 return 0;
1991 }
1992
1993 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1994 struct net_device *dev, u32 mask,
1995 const struct mesh_config *nconf)
1996 {
1997 struct mesh_config *conf;
1998 struct ieee80211_sub_if_data *sdata;
1999 struct ieee80211_if_mesh *ifmsh;
2000
2001 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2002 ifmsh = &sdata->u.mesh;
2003
2004 /* Set the config options which we are interested in setting */
2005 conf = &(sdata->u.mesh.mshcfg);
2006 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2007 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2008 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2009 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2010 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2011 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2012 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2013 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2014 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2015 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2016 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2017 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2018 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2019 conf->element_ttl = nconf->element_ttl;
2020 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2021 if (ifmsh->user_mpm)
2022 return -EBUSY;
2023 conf->auto_open_plinks = nconf->auto_open_plinks;
2024 }
2025 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2026 conf->dot11MeshNbrOffsetMaxNeighbor =
2027 nconf->dot11MeshNbrOffsetMaxNeighbor;
2028 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2029 conf->dot11MeshHWMPmaxPREQretries =
2030 nconf->dot11MeshHWMPmaxPREQretries;
2031 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2032 conf->path_refresh_time = nconf->path_refresh_time;
2033 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2034 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2035 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2036 conf->dot11MeshHWMPactivePathTimeout =
2037 nconf->dot11MeshHWMPactivePathTimeout;
2038 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2039 conf->dot11MeshHWMPpreqMinInterval =
2040 nconf->dot11MeshHWMPpreqMinInterval;
2041 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2042 conf->dot11MeshHWMPperrMinInterval =
2043 nconf->dot11MeshHWMPperrMinInterval;
2044 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2045 mask))
2046 conf->dot11MeshHWMPnetDiameterTraversalTime =
2047 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2048 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2049 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2050 ieee80211_mesh_root_setup(ifmsh);
2051 }
2052 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2053 /* our current gate announcement implementation rides on root
2054 * announcements, so require this ifmsh to also be a root node
2055 * */
2056 if (nconf->dot11MeshGateAnnouncementProtocol &&
2057 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2058 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2059 ieee80211_mesh_root_setup(ifmsh);
2060 }
2061 conf->dot11MeshGateAnnouncementProtocol =
2062 nconf->dot11MeshGateAnnouncementProtocol;
2063 }
2064 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2065 conf->dot11MeshHWMPRannInterval =
2066 nconf->dot11MeshHWMPRannInterval;
2067 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2068 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2069 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2070 /* our RSSI threshold implementation is supported only for
2071 * devices that report signal in dBm.
2072 */
2073 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2074 return -ENOTSUPP;
2075 conf->rssi_threshold = nconf->rssi_threshold;
2076 }
2077 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2078 conf->ht_opmode = nconf->ht_opmode;
2079 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2080 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2081 }
2082 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2083 conf->dot11MeshHWMPactivePathToRootTimeout =
2084 nconf->dot11MeshHWMPactivePathToRootTimeout;
2085 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2086 conf->dot11MeshHWMProotInterval =
2087 nconf->dot11MeshHWMProotInterval;
2088 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2089 conf->dot11MeshHWMPconfirmationInterval =
2090 nconf->dot11MeshHWMPconfirmationInterval;
2091 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2092 conf->power_mode = nconf->power_mode;
2093 ieee80211_mps_local_status_update(sdata);
2094 }
2095 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2096 conf->dot11MeshAwakeWindowDuration =
2097 nconf->dot11MeshAwakeWindowDuration;
2098 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2099 conf->plink_timeout = nconf->plink_timeout;
2100 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2101 conf->dot11MeshConnectedToMeshGate =
2102 nconf->dot11MeshConnectedToMeshGate;
2103 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2104 return 0;
2105 }
2106
2107 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2108 const struct mesh_config *conf,
2109 const struct mesh_setup *setup)
2110 {
2111 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2112 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2113 int err;
2114
2115 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2116 err = copy_mesh_setup(ifmsh, setup);
2117 if (err)
2118 return err;
2119
2120 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2121
2122 /* can mesh use other SMPS modes? */
2123 sdata->smps_mode = IEEE80211_SMPS_OFF;
2124 sdata->needed_rx_chains = sdata->local->rx_chains;
2125
2126 mutex_lock(&sdata->local->mtx);
2127 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2128 IEEE80211_CHANCTX_SHARED);
2129 mutex_unlock(&sdata->local->mtx);
2130 if (err)
2131 return err;
2132
2133 return ieee80211_start_mesh(sdata);
2134 }
2135
2136 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2137 {
2138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2139
2140 ieee80211_stop_mesh(sdata);
2141 mutex_lock(&sdata->local->mtx);
2142 ieee80211_vif_release_channel(sdata);
2143 mutex_unlock(&sdata->local->mtx);
2144
2145 return 0;
2146 }
2147 #endif
2148
2149 static int ieee80211_change_bss(struct wiphy *wiphy,
2150 struct net_device *dev,
2151 struct bss_parameters *params)
2152 {
2153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2154 struct ieee80211_supported_band *sband;
2155 u32 changed = 0;
2156
2157 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2158 return -ENOENT;
2159
2160 sband = ieee80211_get_sband(sdata);
2161 if (!sband)
2162 return -EINVAL;
2163
2164 if (params->use_cts_prot >= 0) {
2165 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2166 changed |= BSS_CHANGED_ERP_CTS_PROT;
2167 }
2168 if (params->use_short_preamble >= 0) {
2169 sdata->vif.bss_conf.use_short_preamble =
2170 params->use_short_preamble;
2171 changed |= BSS_CHANGED_ERP_PREAMBLE;
2172 }
2173
2174 if (!sdata->vif.bss_conf.use_short_slot &&
2175 sband->band == NL80211_BAND_5GHZ) {
2176 sdata->vif.bss_conf.use_short_slot = true;
2177 changed |= BSS_CHANGED_ERP_SLOT;
2178 }
2179
2180 if (params->use_short_slot_time >= 0) {
2181 sdata->vif.bss_conf.use_short_slot =
2182 params->use_short_slot_time;
2183 changed |= BSS_CHANGED_ERP_SLOT;
2184 }
2185
2186 if (params->basic_rates) {
2187 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2188 wiphy->bands[sband->band],
2189 params->basic_rates,
2190 params->basic_rates_len,
2191 &sdata->vif.bss_conf.basic_rates);
2192 changed |= BSS_CHANGED_BASIC_RATES;
2193 ieee80211_check_rate_mask(sdata);
2194 }
2195
2196 if (params->ap_isolate >= 0) {
2197 if (params->ap_isolate)
2198 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2199 else
2200 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2201 ieee80211_check_fast_rx_iface(sdata);
2202 }
2203
2204 if (params->ht_opmode >= 0) {
2205 sdata->vif.bss_conf.ht_operation_mode =
2206 (u16) params->ht_opmode;
2207 changed |= BSS_CHANGED_HT;
2208 }
2209
2210 if (params->p2p_ctwindow >= 0) {
2211 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2212 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2213 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2214 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2215 changed |= BSS_CHANGED_P2P_PS;
2216 }
2217
2218 if (params->p2p_opp_ps > 0) {
2219 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2220 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2221 changed |= BSS_CHANGED_P2P_PS;
2222 } else if (params->p2p_opp_ps == 0) {
2223 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2224 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2225 changed |= BSS_CHANGED_P2P_PS;
2226 }
2227
2228 ieee80211_bss_info_change_notify(sdata, changed);
2229
2230 return 0;
2231 }
2232
2233 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2234 struct net_device *dev,
2235 struct ieee80211_txq_params *params)
2236 {
2237 struct ieee80211_local *local = wiphy_priv(wiphy);
2238 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2239 struct ieee80211_tx_queue_params p;
2240
2241 if (!local->ops->conf_tx)
2242 return -EOPNOTSUPP;
2243
2244 if (local->hw.queues < IEEE80211_NUM_ACS)
2245 return -EOPNOTSUPP;
2246
2247 memset(&p, 0, sizeof(p));
2248 p.aifs = params->aifs;
2249 p.cw_max = params->cwmax;
2250 p.cw_min = params->cwmin;
2251 p.txop = params->txop;
2252
2253 /*
2254 * Setting tx queue params disables u-apsd because it's only
2255 * called in master mode.
2256 */
2257 p.uapsd = false;
2258
2259 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2260
2261 sdata->tx_conf[params->ac] = p;
2262 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2263 wiphy_debug(local->hw.wiphy,
2264 "failed to set TX queue parameters for AC %d\n",
2265 params->ac);
2266 return -EINVAL;
2267 }
2268
2269 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2270
2271 return 0;
2272 }
2273
2274 #ifdef CONFIG_PM
2275 static int ieee80211_suspend(struct wiphy *wiphy,
2276 struct cfg80211_wowlan *wowlan)
2277 {
2278 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2279 }
2280
2281 static int ieee80211_resume(struct wiphy *wiphy)
2282 {
2283 return __ieee80211_resume(wiphy_priv(wiphy));
2284 }
2285 #else
2286 #define ieee80211_suspend NULL
2287 #define ieee80211_resume NULL
2288 #endif
2289
2290 static int ieee80211_scan(struct wiphy *wiphy,
2291 struct cfg80211_scan_request *req)
2292 {
2293 struct ieee80211_sub_if_data *sdata;
2294
2295 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2296
2297 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2298 case NL80211_IFTYPE_STATION:
2299 case NL80211_IFTYPE_ADHOC:
2300 case NL80211_IFTYPE_MESH_POINT:
2301 case NL80211_IFTYPE_P2P_CLIENT:
2302 case NL80211_IFTYPE_P2P_DEVICE:
2303 break;
2304 case NL80211_IFTYPE_P2P_GO:
2305 if (sdata->local->ops->hw_scan)
2306 break;
2307 /*
2308 * FIXME: implement NoA while scanning in software,
2309 * for now fall through to allow scanning only when
2310 * beaconing hasn't been configured yet
2311 */
2312 /* fall through */
2313 case NL80211_IFTYPE_AP:
2314 /*
2315 * If the scan has been forced (and the driver supports
2316 * forcing), don't care about being beaconing already.
2317 * This will create problems to the attached stations (e.g. all
2318 * the frames sent while scanning on other channel will be
2319 * lost)
2320 */
2321 if (sdata->u.ap.beacon &&
2322 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2323 !(req->flags & NL80211_SCAN_FLAG_AP)))
2324 return -EOPNOTSUPP;
2325 break;
2326 case NL80211_IFTYPE_NAN:
2327 default:
2328 return -EOPNOTSUPP;
2329 }
2330
2331 return ieee80211_request_scan(sdata, req);
2332 }
2333
2334 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2335 {
2336 ieee80211_scan_cancel(wiphy_priv(wiphy));
2337 }
2338
2339 static int
2340 ieee80211_sched_scan_start(struct wiphy *wiphy,
2341 struct net_device *dev,
2342 struct cfg80211_sched_scan_request *req)
2343 {
2344 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2345
2346 if (!sdata->local->ops->sched_scan_start)
2347 return -EOPNOTSUPP;
2348
2349 return ieee80211_request_sched_scan_start(sdata, req);
2350 }
2351
2352 static int
2353 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2354 u64 reqid)
2355 {
2356 struct ieee80211_local *local = wiphy_priv(wiphy);
2357
2358 if (!local->ops->sched_scan_stop)
2359 return -EOPNOTSUPP;
2360
2361 return ieee80211_request_sched_scan_stop(local);
2362 }
2363
2364 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2365 struct cfg80211_auth_request *req)
2366 {
2367 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2368 }
2369
2370 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2371 struct cfg80211_assoc_request *req)
2372 {
2373 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2374 }
2375
2376 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2377 struct cfg80211_deauth_request *req)
2378 {
2379 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2380 }
2381
2382 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2383 struct cfg80211_disassoc_request *req)
2384 {
2385 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2386 }
2387
2388 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2389 struct cfg80211_ibss_params *params)
2390 {
2391 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2392 }
2393
2394 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2395 {
2396 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2397 }
2398
2399 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2400 struct ocb_setup *setup)
2401 {
2402 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2403 }
2404
2405 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2406 {
2407 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2408 }
2409
2410 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2411 int rate[NUM_NL80211_BANDS])
2412 {
2413 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2414
2415 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2416 sizeof(int) * NUM_NL80211_BANDS);
2417
2418 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2419
2420 return 0;
2421 }
2422
2423 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2424 {
2425 struct ieee80211_local *local = wiphy_priv(wiphy);
2426 int err;
2427
2428 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2429 ieee80211_check_fast_xmit_all(local);
2430
2431 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2432
2433 if (err) {
2434 ieee80211_check_fast_xmit_all(local);
2435 return err;
2436 }
2437 }
2438
2439 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2440 (changed & WIPHY_PARAM_DYN_ACK)) {
2441 s16 coverage_class;
2442
2443 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2444 wiphy->coverage_class : -1;
2445 err = drv_set_coverage_class(local, coverage_class);
2446
2447 if (err)
2448 return err;
2449 }
2450
2451 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2452 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2453
2454 if (err)
2455 return err;
2456 }
2457
2458 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2459 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2460 return -EINVAL;
2461 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2462 }
2463 if (changed & WIPHY_PARAM_RETRY_LONG) {
2464 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2465 return -EINVAL;
2466 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2467 }
2468 if (changed &
2469 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2470 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2471
2472 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2473 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2474 WIPHY_PARAM_TXQ_QUANTUM))
2475 ieee80211_txq_set_params(local);
2476
2477 return 0;
2478 }
2479
2480 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2481 struct wireless_dev *wdev,
2482 enum nl80211_tx_power_setting type, int mbm)
2483 {
2484 struct ieee80211_local *local = wiphy_priv(wiphy);
2485 struct ieee80211_sub_if_data *sdata;
2486 enum nl80211_tx_power_setting txp_type = type;
2487 bool update_txp_type = false;
2488 bool has_monitor = false;
2489
2490 if (wdev) {
2491 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2492
2493 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2494 sdata = rtnl_dereference(local->monitor_sdata);
2495 if (!sdata)
2496 return -EOPNOTSUPP;
2497 }
2498
2499 switch (type) {
2500 case NL80211_TX_POWER_AUTOMATIC:
2501 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2502 txp_type = NL80211_TX_POWER_LIMITED;
2503 break;
2504 case NL80211_TX_POWER_LIMITED:
2505 case NL80211_TX_POWER_FIXED:
2506 if (mbm < 0 || (mbm % 100))
2507 return -EOPNOTSUPP;
2508 sdata->user_power_level = MBM_TO_DBM(mbm);
2509 break;
2510 }
2511
2512 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2513 update_txp_type = true;
2514 sdata->vif.bss_conf.txpower_type = txp_type;
2515 }
2516
2517 ieee80211_recalc_txpower(sdata, update_txp_type);
2518
2519 return 0;
2520 }
2521
2522 switch (type) {
2523 case NL80211_TX_POWER_AUTOMATIC:
2524 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2525 txp_type = NL80211_TX_POWER_LIMITED;
2526 break;
2527 case NL80211_TX_POWER_LIMITED:
2528 case NL80211_TX_POWER_FIXED:
2529 if (mbm < 0 || (mbm % 100))
2530 return -EOPNOTSUPP;
2531 local->user_power_level = MBM_TO_DBM(mbm);
2532 break;
2533 }
2534
2535 mutex_lock(&local->iflist_mtx);
2536 list_for_each_entry(sdata, &local->interfaces, list) {
2537 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2538 has_monitor = true;
2539 continue;
2540 }
2541 sdata->user_power_level = local->user_power_level;
2542 if (txp_type != sdata->vif.bss_conf.txpower_type)
2543 update_txp_type = true;
2544 sdata->vif.bss_conf.txpower_type = txp_type;
2545 }
2546 list_for_each_entry(sdata, &local->interfaces, list) {
2547 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2548 continue;
2549 ieee80211_recalc_txpower(sdata, update_txp_type);
2550 }
2551 mutex_unlock(&local->iflist_mtx);
2552
2553 if (has_monitor) {
2554 sdata = rtnl_dereference(local->monitor_sdata);
2555 if (sdata) {
2556 sdata->user_power_level = local->user_power_level;
2557 if (txp_type != sdata->vif.bss_conf.txpower_type)
2558 update_txp_type = true;
2559 sdata->vif.bss_conf.txpower_type = txp_type;
2560
2561 ieee80211_recalc_txpower(sdata, update_txp_type);
2562 }
2563 }
2564
2565 return 0;
2566 }
2567
2568 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2569 struct wireless_dev *wdev,
2570 int *dbm)
2571 {
2572 struct ieee80211_local *local = wiphy_priv(wiphy);
2573 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2574
2575 if (local->ops->get_txpower)
2576 return drv_get_txpower(local, sdata, dbm);
2577
2578 if (!local->use_chanctx)
2579 *dbm = local->hw.conf.power_level;
2580 else
2581 *dbm = sdata->vif.bss_conf.txpower;
2582
2583 return 0;
2584 }
2585
2586 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2587 const u8 *addr)
2588 {
2589 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2590
2591 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2592
2593 return 0;
2594 }
2595
2596 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2597 {
2598 struct ieee80211_local *local = wiphy_priv(wiphy);
2599
2600 drv_rfkill_poll(local);
2601 }
2602
2603 #ifdef CONFIG_NL80211_TESTMODE
2604 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2605 struct wireless_dev *wdev,
2606 void *data, int len)
2607 {
2608 struct ieee80211_local *local = wiphy_priv(wiphy);
2609 struct ieee80211_vif *vif = NULL;
2610
2611 if (!local->ops->testmode_cmd)
2612 return -EOPNOTSUPP;
2613
2614 if (wdev) {
2615 struct ieee80211_sub_if_data *sdata;
2616
2617 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2618 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2619 vif = &sdata->vif;
2620 }
2621
2622 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2623 }
2624
2625 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2626 struct sk_buff *skb,
2627 struct netlink_callback *cb,
2628 void *data, int len)
2629 {
2630 struct ieee80211_local *local = wiphy_priv(wiphy);
2631
2632 if (!local->ops->testmode_dump)
2633 return -EOPNOTSUPP;
2634
2635 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2636 }
2637 #endif
2638
2639 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2640 enum ieee80211_smps_mode smps_mode)
2641 {
2642 const u8 *ap;
2643 enum ieee80211_smps_mode old_req;
2644 int err;
2645 struct sta_info *sta;
2646 bool tdls_peer_found = false;
2647
2648 lockdep_assert_held(&sdata->wdev.mtx);
2649
2650 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2651 return -EINVAL;
2652
2653 old_req = sdata->u.mgd.req_smps;
2654 sdata->u.mgd.req_smps = smps_mode;
2655
2656 if (old_req == smps_mode &&
2657 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2658 return 0;
2659
2660 /*
2661 * If not associated, or current association is not an HT
2662 * association, there's no need to do anything, just store
2663 * the new value until we associate.
2664 */
2665 if (!sdata->u.mgd.associated ||
2666 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2667 return 0;
2668
2669 ap = sdata->u.mgd.associated->bssid;
2670
2671 rcu_read_lock();
2672 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2673 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2674 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2675 continue;
2676
2677 tdls_peer_found = true;
2678 break;
2679 }
2680 rcu_read_unlock();
2681
2682 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2683 if (tdls_peer_found || !sdata->u.mgd.powersave)
2684 smps_mode = IEEE80211_SMPS_OFF;
2685 else
2686 smps_mode = IEEE80211_SMPS_DYNAMIC;
2687 }
2688
2689 /* send SM PS frame to AP */
2690 err = ieee80211_send_smps_action(sdata, smps_mode,
2691 ap, ap);
2692 if (err)
2693 sdata->u.mgd.req_smps = old_req;
2694 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2695 ieee80211_teardown_tdls_peers(sdata);
2696
2697 return err;
2698 }
2699
2700 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2701 bool enabled, int timeout)
2702 {
2703 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2704 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2705
2706 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2707 return -EOPNOTSUPP;
2708
2709 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2710 return -EOPNOTSUPP;
2711
2712 if (enabled == sdata->u.mgd.powersave &&
2713 timeout == local->dynamic_ps_forced_timeout)
2714 return 0;
2715
2716 sdata->u.mgd.powersave = enabled;
2717 local->dynamic_ps_forced_timeout = timeout;
2718
2719 /* no change, but if automatic follow powersave */
2720 sdata_lock(sdata);
2721 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2722 sdata_unlock(sdata);
2723
2724 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2725 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2726
2727 ieee80211_recalc_ps(local);
2728 ieee80211_recalc_ps_vif(sdata);
2729 ieee80211_check_fast_rx_iface(sdata);
2730
2731 return 0;
2732 }
2733
2734 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2735 struct net_device *dev,
2736 s32 rssi_thold, u32 rssi_hyst)
2737 {
2738 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2739 struct ieee80211_vif *vif = &sdata->vif;
2740 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2741
2742 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2743 rssi_hyst == bss_conf->cqm_rssi_hyst)
2744 return 0;
2745
2746 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2747 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2748 return -EOPNOTSUPP;
2749
2750 bss_conf->cqm_rssi_thold = rssi_thold;
2751 bss_conf->cqm_rssi_hyst = rssi_hyst;
2752 bss_conf->cqm_rssi_low = 0;
2753 bss_conf->cqm_rssi_high = 0;
2754 sdata->u.mgd.last_cqm_event_signal = 0;
2755
2756 /* tell the driver upon association, unless already associated */
2757 if (sdata->u.mgd.associated &&
2758 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2759 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2760
2761 return 0;
2762 }
2763
2764 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2765 struct net_device *dev,
2766 s32 rssi_low, s32 rssi_high)
2767 {
2768 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2769 struct ieee80211_vif *vif = &sdata->vif;
2770 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2771
2772 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2773 return -EOPNOTSUPP;
2774
2775 bss_conf->cqm_rssi_low = rssi_low;
2776 bss_conf->cqm_rssi_high = rssi_high;
2777 bss_conf->cqm_rssi_thold = 0;
2778 bss_conf->cqm_rssi_hyst = 0;
2779 sdata->u.mgd.last_cqm_event_signal = 0;
2780
2781 /* tell the driver upon association, unless already associated */
2782 if (sdata->u.mgd.associated &&
2783 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2784 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2785
2786 return 0;
2787 }
2788
2789 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2790 struct net_device *dev,
2791 const u8 *addr,
2792 const struct cfg80211_bitrate_mask *mask)
2793 {
2794 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2795 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2796 int i, ret;
2797
2798 if (!ieee80211_sdata_running(sdata))
2799 return -ENETDOWN;
2800
2801 /*
2802 * If active validate the setting and reject it if it doesn't leave
2803 * at least one basic rate usable, since we really have to be able
2804 * to send something, and if we're an AP we have to be able to do
2805 * so at a basic rate so that all clients can receive it.
2806 */
2807 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2808 sdata->vif.bss_conf.chandef.chan) {
2809 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2810 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2811
2812 if (!(mask->control[band].legacy & basic_rates))
2813 return -EINVAL;
2814 }
2815
2816 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2817 ret = drv_set_bitrate_mask(local, sdata, mask);
2818 if (ret)
2819 return ret;
2820 }
2821
2822 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2823 struct ieee80211_supported_band *sband = wiphy->bands[i];
2824 int j;
2825
2826 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2827 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2828 sizeof(mask->control[i].ht_mcs));
2829 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2830 mask->control[i].vht_mcs,
2831 sizeof(mask->control[i].vht_mcs));
2832
2833 sdata->rc_has_mcs_mask[i] = false;
2834 sdata->rc_has_vht_mcs_mask[i] = false;
2835 if (!sband)
2836 continue;
2837
2838 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2839 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2840 sdata->rc_has_mcs_mask[i] = true;
2841 break;
2842 }
2843 }
2844
2845 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2846 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2847 sdata->rc_has_vht_mcs_mask[i] = true;
2848 break;
2849 }
2850 }
2851 }
2852
2853 return 0;
2854 }
2855
2856 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2857 struct net_device *dev,
2858 struct cfg80211_chan_def *chandef,
2859 u32 cac_time_ms)
2860 {
2861 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2862 struct ieee80211_local *local = sdata->local;
2863 int err;
2864
2865 mutex_lock(&local->mtx);
2866 if (!list_empty(&local->roc_list) || local->scanning) {
2867 err = -EBUSY;
2868 goto out_unlock;
2869 }
2870
2871 /* whatever, but channel contexts should not complain about that one */
2872 sdata->smps_mode = IEEE80211_SMPS_OFF;
2873 sdata->needed_rx_chains = local->rx_chains;
2874
2875 err = ieee80211_vif_use_channel(sdata, chandef,
2876 IEEE80211_CHANCTX_SHARED);
2877 if (err)
2878 goto out_unlock;
2879
2880 ieee80211_queue_delayed_work(&sdata->local->hw,
2881 &sdata->dfs_cac_timer_work,
2882 msecs_to_jiffies(cac_time_ms));
2883
2884 out_unlock:
2885 mutex_unlock(&local->mtx);
2886 return err;
2887 }
2888
2889 static void ieee80211_end_cac(struct wiphy *wiphy,
2890 struct net_device *dev)
2891 {
2892 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2893 struct ieee80211_local *local = sdata->local;
2894
2895 mutex_lock(&local->mtx);
2896 list_for_each_entry(sdata, &local->interfaces, list) {
2897 /* it might be waiting for the local->mtx, but then
2898 * by the time it gets it, sdata->wdev.cac_started
2899 * will no longer be true
2900 */
2901 cancel_delayed_work(&sdata->dfs_cac_timer_work);
2902
2903 if (sdata->wdev.cac_started) {
2904 ieee80211_vif_release_channel(sdata);
2905 sdata->wdev.cac_started = false;
2906 }
2907 }
2908 mutex_unlock(&local->mtx);
2909 }
2910
2911 static struct cfg80211_beacon_data *
2912 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2913 {
2914 struct cfg80211_beacon_data *new_beacon;
2915 u8 *pos;
2916 int len;
2917
2918 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2919 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2920 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
2921
2922 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2923 if (!new_beacon)
2924 return NULL;
2925
2926 pos = (u8 *)(new_beacon + 1);
2927 if (beacon->head_len) {
2928 new_beacon->head_len = beacon->head_len;
2929 new_beacon->head = pos;
2930 memcpy(pos, beacon->head, beacon->head_len);
2931 pos += beacon->head_len;
2932 }
2933 if (beacon->tail_len) {
2934 new_beacon->tail_len = beacon->tail_len;
2935 new_beacon->tail = pos;
2936 memcpy(pos, beacon->tail, beacon->tail_len);
2937 pos += beacon->tail_len;
2938 }
2939 if (beacon->beacon_ies_len) {
2940 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2941 new_beacon->beacon_ies = pos;
2942 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2943 pos += beacon->beacon_ies_len;
2944 }
2945 if (beacon->proberesp_ies_len) {
2946 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2947 new_beacon->proberesp_ies = pos;
2948 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2949 pos += beacon->proberesp_ies_len;
2950 }
2951 if (beacon->assocresp_ies_len) {
2952 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2953 new_beacon->assocresp_ies = pos;
2954 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2955 pos += beacon->assocresp_ies_len;
2956 }
2957 if (beacon->probe_resp_len) {
2958 new_beacon->probe_resp_len = beacon->probe_resp_len;
2959 new_beacon->probe_resp = pos;
2960 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2961 pos += beacon->probe_resp_len;
2962 }
2963
2964 /* might copy -1, meaning no changes requested */
2965 new_beacon->ftm_responder = beacon->ftm_responder;
2966 if (beacon->lci) {
2967 new_beacon->lci_len = beacon->lci_len;
2968 new_beacon->lci = pos;
2969 memcpy(pos, beacon->lci, beacon->lci_len);
2970 pos += beacon->lci_len;
2971 }
2972 if (beacon->civicloc) {
2973 new_beacon->civicloc_len = beacon->civicloc_len;
2974 new_beacon->civicloc = pos;
2975 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
2976 pos += beacon->civicloc_len;
2977 }
2978
2979 return new_beacon;
2980 }
2981
2982 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2983 {
2984 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2985
2986 ieee80211_queue_work(&sdata->local->hw,
2987 &sdata->csa_finalize_work);
2988 }
2989 EXPORT_SYMBOL(ieee80211_csa_finish);
2990
2991 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2992 u32 *changed)
2993 {
2994 int err;
2995
2996 switch (sdata->vif.type) {
2997 case NL80211_IFTYPE_AP:
2998 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2999 NULL);
3000 kfree(sdata->u.ap.next_beacon);
3001 sdata->u.ap.next_beacon = NULL;
3002
3003 if (err < 0)
3004 return err;
3005 *changed |= err;
3006 break;
3007 case NL80211_IFTYPE_ADHOC:
3008 err = ieee80211_ibss_finish_csa(sdata);
3009 if (err < 0)
3010 return err;
3011 *changed |= err;
3012 break;
3013 #ifdef CONFIG_MAC80211_MESH
3014 case NL80211_IFTYPE_MESH_POINT:
3015 err = ieee80211_mesh_finish_csa(sdata);
3016 if (err < 0)
3017 return err;
3018 *changed |= err;
3019 break;
3020 #endif
3021 default:
3022 WARN_ON(1);
3023 return -EINVAL;
3024 }
3025
3026 return 0;
3027 }
3028
3029 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3030 {
3031 struct ieee80211_local *local = sdata->local;
3032 u32 changed = 0;
3033 int err;
3034
3035 sdata_assert_lock(sdata);
3036 lockdep_assert_held(&local->mtx);
3037 lockdep_assert_held(&local->chanctx_mtx);
3038
3039 /*
3040 * using reservation isn't immediate as it may be deferred until later
3041 * with multi-vif. once reservation is complete it will re-schedule the
3042 * work with no reserved_chanctx so verify chandef to check if it
3043 * completed successfully
3044 */
3045
3046 if (sdata->reserved_chanctx) {
3047 /*
3048 * with multi-vif csa driver may call ieee80211_csa_finish()
3049 * many times while waiting for other interfaces to use their
3050 * reservations
3051 */
3052 if (sdata->reserved_ready)
3053 return 0;
3054
3055 return ieee80211_vif_use_reserved_context(sdata);
3056 }
3057
3058 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3059 &sdata->csa_chandef))
3060 return -EINVAL;
3061
3062 sdata->vif.csa_active = false;
3063
3064 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3065 if (err)
3066 return err;
3067
3068 ieee80211_bss_info_change_notify(sdata, changed);
3069
3070 if (sdata->csa_block_tx) {
3071 ieee80211_wake_vif_queues(local, sdata,
3072 IEEE80211_QUEUE_STOP_REASON_CSA);
3073 sdata->csa_block_tx = false;
3074 }
3075
3076 err = drv_post_channel_switch(sdata);
3077 if (err)
3078 return err;
3079
3080 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3081
3082 return 0;
3083 }
3084
3085 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3086 {
3087 if (__ieee80211_csa_finalize(sdata)) {
3088 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3089 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3090 GFP_KERNEL);
3091 }
3092 }
3093
3094 void ieee80211_csa_finalize_work(struct work_struct *work)
3095 {
3096 struct ieee80211_sub_if_data *sdata =
3097 container_of(work, struct ieee80211_sub_if_data,
3098 csa_finalize_work);
3099 struct ieee80211_local *local = sdata->local;
3100
3101 sdata_lock(sdata);
3102 mutex_lock(&local->mtx);
3103 mutex_lock(&local->chanctx_mtx);
3104
3105 /* AP might have been stopped while waiting for the lock. */
3106 if (!sdata->vif.csa_active)
3107 goto unlock;
3108
3109 if (!ieee80211_sdata_running(sdata))
3110 goto unlock;
3111
3112 ieee80211_csa_finalize(sdata);
3113
3114 unlock:
3115 mutex_unlock(&local->chanctx_mtx);
3116 mutex_unlock(&local->mtx);
3117 sdata_unlock(sdata);
3118 }
3119
3120 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3121 struct cfg80211_csa_settings *params,
3122 u32 *changed)
3123 {
3124 struct ieee80211_csa_settings csa = {};
3125 int err;
3126
3127 switch (sdata->vif.type) {
3128 case NL80211_IFTYPE_AP:
3129 sdata->u.ap.next_beacon =
3130 cfg80211_beacon_dup(&params->beacon_after);
3131 if (!sdata->u.ap.next_beacon)
3132 return -ENOMEM;
3133
3134 /*
3135 * With a count of 0, we don't have to wait for any
3136 * TBTT before switching, so complete the CSA
3137 * immediately. In theory, with a count == 1 we
3138 * should delay the switch until just before the next
3139 * TBTT, but that would complicate things so we switch
3140 * immediately too. If we would delay the switch
3141 * until the next TBTT, we would have to set the probe
3142 * response here.
3143 *
3144 * TODO: A channel switch with count <= 1 without
3145 * sending a CSA action frame is kind of useless,
3146 * because the clients won't know we're changing
3147 * channels. The action frame must be implemented
3148 * either here or in the userspace.
3149 */
3150 if (params->count <= 1)
3151 break;
3152
3153 if ((params->n_counter_offsets_beacon >
3154 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3155 (params->n_counter_offsets_presp >
3156 IEEE80211_MAX_CSA_COUNTERS_NUM))
3157 return -EINVAL;
3158
3159 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3160 csa.counter_offsets_presp = params->counter_offsets_presp;
3161 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3162 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3163 csa.count = params->count;
3164
3165 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3166 if (err < 0) {
3167 kfree(sdata->u.ap.next_beacon);
3168 return err;
3169 }
3170 *changed |= err;
3171
3172 break;
3173 case NL80211_IFTYPE_ADHOC:
3174 if (!sdata->vif.bss_conf.ibss_joined)
3175 return -EINVAL;
3176
3177 if (params->chandef.width != sdata->u.ibss.chandef.width)
3178 return -EINVAL;
3179
3180 switch (params->chandef.width) {
3181 case NL80211_CHAN_WIDTH_40:
3182 if (cfg80211_get_chandef_type(&params->chandef) !=
3183 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3184 return -EINVAL;
3185 case NL80211_CHAN_WIDTH_5:
3186 case NL80211_CHAN_WIDTH_10:
3187 case NL80211_CHAN_WIDTH_20_NOHT:
3188 case NL80211_CHAN_WIDTH_20:
3189 break;
3190 default:
3191 return -EINVAL;
3192 }
3193
3194 /* changes into another band are not supported */
3195 if (sdata->u.ibss.chandef.chan->band !=
3196 params->chandef.chan->band)
3197 return -EINVAL;
3198
3199 /* see comments in the NL80211_IFTYPE_AP block */
3200 if (params->count > 1) {
3201 err = ieee80211_ibss_csa_beacon(sdata, params);
3202 if (err < 0)
3203 return err;
3204 *changed |= err;
3205 }
3206
3207 ieee80211_send_action_csa(sdata, params);
3208
3209 break;
3210 #ifdef CONFIG_MAC80211_MESH
3211 case NL80211_IFTYPE_MESH_POINT: {
3212 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3213
3214 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3215 return -EINVAL;
3216
3217 /* changes into another band are not supported */
3218 if (sdata->vif.bss_conf.chandef.chan->band !=
3219 params->chandef.chan->band)
3220 return -EINVAL;
3221
3222 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3223 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3224 if (!ifmsh->pre_value)
3225 ifmsh->pre_value = 1;
3226 else
3227 ifmsh->pre_value++;
3228 }
3229
3230 /* see comments in the NL80211_IFTYPE_AP block */
3231 if (params->count > 1) {
3232 err = ieee80211_mesh_csa_beacon(sdata, params);
3233 if (err < 0) {
3234 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3235 return err;
3236 }
3237 *changed |= err;
3238 }
3239
3240 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3241 ieee80211_send_action_csa(sdata, params);
3242
3243 break;
3244 }
3245 #endif
3246 default:
3247 return -EOPNOTSUPP;
3248 }
3249
3250 return 0;
3251 }
3252
3253 static int
3254 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3255 struct cfg80211_csa_settings *params)
3256 {
3257 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3258 struct ieee80211_local *local = sdata->local;
3259 struct ieee80211_channel_switch ch_switch;
3260 struct ieee80211_chanctx_conf *conf;
3261 struct ieee80211_chanctx *chanctx;
3262 u32 changed = 0;
3263 int err;
3264
3265 sdata_assert_lock(sdata);
3266 lockdep_assert_held(&local->mtx);
3267
3268 if (!list_empty(&local->roc_list) || local->scanning)
3269 return -EBUSY;
3270
3271 if (sdata->wdev.cac_started)
3272 return -EBUSY;
3273
3274 if (cfg80211_chandef_identical(&params->chandef,
3275 &sdata->vif.bss_conf.chandef))
3276 return -EINVAL;
3277
3278 /* don't allow another channel switch if one is already active. */
3279 if (sdata->vif.csa_active)
3280 return -EBUSY;
3281
3282 mutex_lock(&local->chanctx_mtx);
3283 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3284 lockdep_is_held(&local->chanctx_mtx));
3285 if (!conf) {
3286 err = -EBUSY;
3287 goto out;
3288 }
3289
3290 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3291
3292 ch_switch.timestamp = 0;
3293 ch_switch.device_timestamp = 0;
3294 ch_switch.block_tx = params->block_tx;
3295 ch_switch.chandef = params->chandef;
3296 ch_switch.count = params->count;
3297
3298 err = drv_pre_channel_switch(sdata, &ch_switch);
3299 if (err)
3300 goto out;
3301
3302 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3303 chanctx->mode,
3304 params->radar_required);
3305 if (err)
3306 goto out;
3307
3308 /* if reservation is invalid then this will fail */
3309 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3310 if (err) {
3311 ieee80211_vif_unreserve_chanctx(sdata);
3312 goto out;
3313 }
3314
3315 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3316 if (err) {
3317 ieee80211_vif_unreserve_chanctx(sdata);
3318 goto out;
3319 }
3320
3321 sdata->csa_chandef = params->chandef;
3322 sdata->csa_block_tx = params->block_tx;
3323 sdata->vif.csa_active = true;
3324
3325 if (sdata->csa_block_tx)
3326 ieee80211_stop_vif_queues(local, sdata,
3327 IEEE80211_QUEUE_STOP_REASON_CSA);
3328
3329 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3330 params->count);
3331
3332 if (changed) {
3333 ieee80211_bss_info_change_notify(sdata, changed);
3334 drv_channel_switch_beacon(sdata, &params->chandef);
3335 } else {
3336 /* if the beacon didn't change, we can finalize immediately */
3337 ieee80211_csa_finalize(sdata);
3338 }
3339
3340 out:
3341 mutex_unlock(&local->chanctx_mtx);
3342 return err;
3343 }
3344
3345 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3346 struct cfg80211_csa_settings *params)
3347 {
3348 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3349 struct ieee80211_local *local = sdata->local;
3350 int err;
3351
3352 mutex_lock(&local->mtx);
3353 err = __ieee80211_channel_switch(wiphy, dev, params);
3354 mutex_unlock(&local->mtx);
3355
3356 return err;
3357 }
3358
3359 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3360 {
3361 lockdep_assert_held(&local->mtx);
3362
3363 local->roc_cookie_counter++;
3364
3365 /* wow, you wrapped 64 bits ... more likely a bug */
3366 if (WARN_ON(local->roc_cookie_counter == 0))
3367 local->roc_cookie_counter++;
3368
3369 return local->roc_cookie_counter;
3370 }
3371
3372 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3373 u64 *cookie, gfp_t gfp)
3374 {
3375 unsigned long spin_flags;
3376 struct sk_buff *ack_skb;
3377 int id;
3378
3379 ack_skb = skb_copy(skb, gfp);
3380 if (!ack_skb)
3381 return -ENOMEM;
3382
3383 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3384 id = idr_alloc(&local->ack_status_frames, ack_skb,
3385 1, 0x2000, GFP_ATOMIC);
3386 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3387
3388 if (id < 0) {
3389 kfree_skb(ack_skb);
3390 return -ENOMEM;
3391 }
3392
3393 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3394
3395 *cookie = ieee80211_mgmt_tx_cookie(local);
3396 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3397
3398 return 0;
3399 }
3400
3401 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3402 struct wireless_dev *wdev,
3403 u16 frame_type, bool reg)
3404 {
3405 struct ieee80211_local *local = wiphy_priv(wiphy);
3406 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3407
3408 switch (frame_type) {
3409 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3410 if (reg) {
3411 local->probe_req_reg++;
3412 sdata->vif.probe_req_reg++;
3413 } else {
3414 if (local->probe_req_reg)
3415 local->probe_req_reg--;
3416
3417 if (sdata->vif.probe_req_reg)
3418 sdata->vif.probe_req_reg--;
3419 }
3420
3421 if (!local->open_count)
3422 break;
3423
3424 if (sdata->vif.probe_req_reg == 1)
3425 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3426 FIF_PROBE_REQ);
3427 else if (sdata->vif.probe_req_reg == 0)
3428 drv_config_iface_filter(local, sdata, 0,
3429 FIF_PROBE_REQ);
3430
3431 ieee80211_configure_filter(local);
3432 break;
3433 default:
3434 break;
3435 }
3436 }
3437
3438 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3439 {
3440 struct ieee80211_local *local = wiphy_priv(wiphy);
3441
3442 if (local->started)
3443 return -EOPNOTSUPP;
3444
3445 return drv_set_antenna(local, tx_ant, rx_ant);
3446 }
3447
3448 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3449 {
3450 struct ieee80211_local *local = wiphy_priv(wiphy);
3451
3452 return drv_get_antenna(local, tx_ant, rx_ant);
3453 }
3454
3455 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3456 struct net_device *dev,
3457 struct cfg80211_gtk_rekey_data *data)
3458 {
3459 struct ieee80211_local *local = wiphy_priv(wiphy);
3460 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3461
3462 if (!local->ops->set_rekey_data)
3463 return -EOPNOTSUPP;
3464
3465 drv_set_rekey_data(local, sdata, data);
3466
3467 return 0;
3468 }
3469
3470 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3471 const u8 *peer, u64 *cookie)
3472 {
3473 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3474 struct ieee80211_local *local = sdata->local;
3475 struct ieee80211_qos_hdr *nullfunc;
3476 struct sk_buff *skb;
3477 int size = sizeof(*nullfunc);
3478 __le16 fc;
3479 bool qos;
3480 struct ieee80211_tx_info *info;
3481 struct sta_info *sta;
3482 struct ieee80211_chanctx_conf *chanctx_conf;
3483 enum nl80211_band band;
3484 int ret;
3485
3486 /* the lock is needed to assign the cookie later */
3487 mutex_lock(&local->mtx);
3488
3489 rcu_read_lock();
3490 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3491 if (WARN_ON(!chanctx_conf)) {
3492 ret = -EINVAL;
3493 goto unlock;
3494 }
3495 band = chanctx_conf->def.chan->band;
3496 sta = sta_info_get_bss(sdata, peer);
3497 if (sta) {
3498 qos = sta->sta.wme;
3499 } else {
3500 ret = -ENOLINK;
3501 goto unlock;
3502 }
3503
3504 if (qos) {
3505 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3506 IEEE80211_STYPE_QOS_NULLFUNC |
3507 IEEE80211_FCTL_FROMDS);
3508 } else {
3509 size -= 2;
3510 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3511 IEEE80211_STYPE_NULLFUNC |
3512 IEEE80211_FCTL_FROMDS);
3513 }
3514
3515 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3516 if (!skb) {
3517 ret = -ENOMEM;
3518 goto unlock;
3519 }
3520
3521 skb->dev = dev;
3522
3523 skb_reserve(skb, local->hw.extra_tx_headroom);
3524
3525 nullfunc = skb_put(skb, size);
3526 nullfunc->frame_control = fc;
3527 nullfunc->duration_id = 0;
3528 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3529 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3530 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3531 nullfunc->seq_ctrl = 0;
3532
3533 info = IEEE80211_SKB_CB(skb);
3534
3535 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3536 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3537 info->band = band;
3538
3539 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3540 skb->priority = 7;
3541 if (qos)
3542 nullfunc->qos_ctrl = cpu_to_le16(7);
3543
3544 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3545 if (ret) {
3546 kfree_skb(skb);
3547 goto unlock;
3548 }
3549
3550 local_bh_disable();
3551 ieee80211_xmit(sdata, sta, skb, 0);
3552 local_bh_enable();
3553
3554 ret = 0;
3555 unlock:
3556 rcu_read_unlock();
3557 mutex_unlock(&local->mtx);
3558
3559 return ret;
3560 }
3561
3562 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3563 struct wireless_dev *wdev,
3564 struct cfg80211_chan_def *chandef)
3565 {
3566 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3567 struct ieee80211_local *local = wiphy_priv(wiphy);
3568 struct ieee80211_chanctx_conf *chanctx_conf;
3569 int ret = -ENODATA;
3570
3571 rcu_read_lock();
3572 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3573 if (chanctx_conf) {
3574 *chandef = sdata->vif.bss_conf.chandef;
3575 ret = 0;
3576 } else if (local->open_count > 0 &&
3577 local->open_count == local->monitors &&
3578 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3579 if (local->use_chanctx)
3580 *chandef = local->monitor_chandef;
3581 else
3582 *chandef = local->_oper_chandef;
3583 ret = 0;
3584 }
3585 rcu_read_unlock();
3586
3587 return ret;
3588 }
3589
3590 #ifdef CONFIG_PM
3591 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3592 {
3593 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3594 }
3595 #endif
3596
3597 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3598 struct net_device *dev,
3599 struct cfg80211_qos_map *qos_map)
3600 {
3601 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3602 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3603
3604 if (qos_map) {
3605 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3606 if (!new_qos_map)
3607 return -ENOMEM;
3608 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3609 } else {
3610 /* A NULL qos_map was passed to disable QoS mapping */
3611 new_qos_map = NULL;
3612 }
3613
3614 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3615 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3616 if (old_qos_map)
3617 kfree_rcu(old_qos_map, rcu_head);
3618
3619 return 0;
3620 }
3621
3622 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3623 struct net_device *dev,
3624 struct cfg80211_chan_def *chandef)
3625 {
3626 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3627 int ret;
3628 u32 changed = 0;
3629
3630 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3631 if (ret == 0)
3632 ieee80211_bss_info_change_notify(sdata, changed);
3633
3634 return ret;
3635 }
3636
3637 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3638 u8 tsid, const u8 *peer, u8 up,
3639 u16 admitted_time)
3640 {
3641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3642 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3643 int ac = ieee802_1d_to_ac[up];
3644
3645 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3646 return -EOPNOTSUPP;
3647
3648 if (!(sdata->wmm_acm & BIT(up)))
3649 return -EINVAL;
3650
3651 if (ifmgd->tx_tspec[ac].admitted_time)
3652 return -EBUSY;
3653
3654 if (admitted_time) {
3655 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3656 ifmgd->tx_tspec[ac].tsid = tsid;
3657 ifmgd->tx_tspec[ac].up = up;
3658 }
3659
3660 return 0;
3661 }
3662
3663 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3664 u8 tsid, const u8 *peer)
3665 {
3666 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3667 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3668 struct ieee80211_local *local = wiphy_priv(wiphy);
3669 int ac;
3670
3671 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3672 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3673
3674 /* skip unused entries */
3675 if (!tx_tspec->admitted_time)
3676 continue;
3677
3678 if (tx_tspec->tsid != tsid)
3679 continue;
3680
3681 /* due to this new packets will be reassigned to non-ACM ACs */
3682 tx_tspec->up = -1;
3683
3684 /* Make sure that all packets have been sent to avoid to
3685 * restore the QoS params on packets that are still on the
3686 * queues.
3687 */
3688 synchronize_net();
3689 ieee80211_flush_queues(local, sdata, false);
3690
3691 /* restore the normal QoS parameters
3692 * (unconditionally to avoid races)
3693 */
3694 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3695 tx_tspec->downgraded = false;
3696 ieee80211_sta_handle_tspec_ac_params(sdata);
3697
3698 /* finally clear all the data */
3699 memset(tx_tspec, 0, sizeof(*tx_tspec));
3700
3701 return 0;
3702 }
3703
3704 return -ENOENT;
3705 }
3706
3707 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3708 u8 inst_id,
3709 enum nl80211_nan_func_term_reason reason,
3710 gfp_t gfp)
3711 {
3712 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3713 struct cfg80211_nan_func *func;
3714 u64 cookie;
3715
3716 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3717 return;
3718
3719 spin_lock_bh(&sdata->u.nan.func_lock);
3720
3721 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3722 if (WARN_ON(!func)) {
3723 spin_unlock_bh(&sdata->u.nan.func_lock);
3724 return;
3725 }
3726
3727 cookie = func->cookie;
3728 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3729
3730 spin_unlock_bh(&sdata->u.nan.func_lock);
3731
3732 cfg80211_free_nan_func(func);
3733
3734 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3735 reason, cookie, gfp);
3736 }
3737 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3738
3739 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3740 struct cfg80211_nan_match_params *match,
3741 gfp_t gfp)
3742 {
3743 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3744 struct cfg80211_nan_func *func;
3745
3746 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3747 return;
3748
3749 spin_lock_bh(&sdata->u.nan.func_lock);
3750
3751 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3752 if (WARN_ON(!func)) {
3753 spin_unlock_bh(&sdata->u.nan.func_lock);
3754 return;
3755 }
3756 match->cookie = func->cookie;
3757
3758 spin_unlock_bh(&sdata->u.nan.func_lock);
3759
3760 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3761 }
3762 EXPORT_SYMBOL(ieee80211_nan_func_match);
3763
3764 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3765 struct net_device *dev,
3766 const bool enabled)
3767 {
3768 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3769
3770 sdata->u.ap.multicast_to_unicast = enabled;
3771
3772 return 0;
3773 }
3774
3775 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3776 struct txq_info *txqi)
3777 {
3778 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3779 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3780 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3781 }
3782
3783 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3784 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3785 txqstats->backlog_packets = txqi->tin.backlog_packets;
3786 }
3787
3788 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3789 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3790 txqstats->flows = txqi->tin.flows;
3791 }
3792
3793 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3794 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3795 txqstats->drops = txqi->cstats.drop_count;
3796 }
3797
3798 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3799 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3800 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3801 }
3802
3803 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3804 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3805 txqstats->overlimit = txqi->tin.overlimit;
3806 }
3807
3808 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3809 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3810 txqstats->collisions = txqi->tin.collisions;
3811 }
3812
3813 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3814 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3815 txqstats->tx_bytes = txqi->tin.tx_bytes;
3816 }
3817
3818 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3819 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3820 txqstats->tx_packets = txqi->tin.tx_packets;
3821 }
3822 }
3823
3824 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3825 struct wireless_dev *wdev,
3826 struct cfg80211_txq_stats *txqstats)
3827 {
3828 struct ieee80211_local *local = wiphy_priv(wiphy);
3829 struct ieee80211_sub_if_data *sdata;
3830 int ret = 0;
3831
3832 if (!local->ops->wake_tx_queue)
3833 return 1;
3834
3835 spin_lock_bh(&local->fq.lock);
3836 rcu_read_lock();
3837
3838 if (wdev) {
3839 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3840 if (!sdata->vif.txq) {
3841 ret = 1;
3842 goto out;
3843 }
3844 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3845 } else {
3846 /* phy stats */
3847 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3848 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3849 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3850 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3851 BIT(NL80211_TXQ_STATS_COLLISIONS) |
3852 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3853 txqstats->backlog_packets = local->fq.backlog;
3854 txqstats->backlog_bytes = local->fq.memory_usage;
3855 txqstats->overlimit = local->fq.overlimit;
3856 txqstats->overmemory = local->fq.overmemory;
3857 txqstats->collisions = local->fq.collisions;
3858 txqstats->max_flows = local->fq.flows_cnt;
3859 }
3860
3861 out:
3862 rcu_read_unlock();
3863 spin_unlock_bh(&local->fq.lock);
3864
3865 return ret;
3866 }
3867
3868 static int
3869 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3870 struct net_device *dev,
3871 struct cfg80211_ftm_responder_stats *ftm_stats)
3872 {
3873 struct ieee80211_local *local = wiphy_priv(wiphy);
3874 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3875
3876 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
3877 }
3878
3879 static int
3880 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3881 struct cfg80211_pmsr_request *request)
3882 {
3883 struct ieee80211_local *local = wiphy_priv(wiphy);
3884 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3885
3886 return drv_start_pmsr(local, sdata, request);
3887 }
3888
3889 static void
3890 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3891 struct cfg80211_pmsr_request *request)
3892 {
3893 struct ieee80211_local *local = wiphy_priv(wiphy);
3894 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3895
3896 return drv_abort_pmsr(local, sdata, request);
3897 }
3898
3899 static int ieee80211_set_tid_config(struct wiphy *wiphy,
3900 struct net_device *dev,
3901 struct cfg80211_tid_config *tid_conf)
3902 {
3903 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3904 struct sta_info *sta;
3905 int ret;
3906
3907 if (!sdata->local->ops->set_tid_config)
3908 return -EOPNOTSUPP;
3909
3910 if (!tid_conf->peer)
3911 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
3912
3913 mutex_lock(&sdata->local->sta_mtx);
3914 sta = sta_info_get_bss(sdata, tid_conf->peer);
3915 if (!sta) {
3916 mutex_unlock(&sdata->local->sta_mtx);
3917 return -ENOENT;
3918 }
3919
3920 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
3921 mutex_unlock(&sdata->local->sta_mtx);
3922
3923 return ret;
3924 }
3925
3926 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
3927 struct net_device *dev,
3928 const u8 *peer, u8 tid)
3929 {
3930 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3931 struct sta_info *sta;
3932 int ret;
3933
3934 if (!sdata->local->ops->reset_tid_config)
3935 return -EOPNOTSUPP;
3936
3937 if (!peer)
3938 return drv_reset_tid_config(sdata->local, sdata, NULL, tid);
3939
3940 mutex_lock(&sdata->local->sta_mtx);
3941 sta = sta_info_get_bss(sdata, peer);
3942 if (!sta) {
3943 mutex_unlock(&sdata->local->sta_mtx);
3944 return -ENOENT;
3945 }
3946
3947 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tid);
3948 mutex_unlock(&sdata->local->sta_mtx);
3949
3950 return ret;
3951 }
3952
3953 const struct cfg80211_ops mac80211_config_ops = {
3954 .add_virtual_intf = ieee80211_add_iface,
3955 .del_virtual_intf = ieee80211_del_iface,
3956 .change_virtual_intf = ieee80211_change_iface,
3957 .start_p2p_device = ieee80211_start_p2p_device,
3958 .stop_p2p_device = ieee80211_stop_p2p_device,
3959 .add_key = ieee80211_add_key,
3960 .del_key = ieee80211_del_key,
3961 .get_key = ieee80211_get_key,
3962 .set_default_key = ieee80211_config_default_key,
3963 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3964 .set_default_beacon_key = ieee80211_config_default_beacon_key,
3965 .start_ap = ieee80211_start_ap,
3966 .change_beacon = ieee80211_change_beacon,
3967 .stop_ap = ieee80211_stop_ap,
3968 .add_station = ieee80211_add_station,
3969 .del_station = ieee80211_del_station,
3970 .change_station = ieee80211_change_station,
3971 .get_station = ieee80211_get_station,
3972 .dump_station = ieee80211_dump_station,
3973 .dump_survey = ieee80211_dump_survey,
3974 #ifdef CONFIG_MAC80211_MESH
3975 .add_mpath = ieee80211_add_mpath,
3976 .del_mpath = ieee80211_del_mpath,
3977 .change_mpath = ieee80211_change_mpath,
3978 .get_mpath = ieee80211_get_mpath,
3979 .dump_mpath = ieee80211_dump_mpath,
3980 .get_mpp = ieee80211_get_mpp,
3981 .dump_mpp = ieee80211_dump_mpp,
3982 .update_mesh_config = ieee80211_update_mesh_config,
3983 .get_mesh_config = ieee80211_get_mesh_config,
3984 .join_mesh = ieee80211_join_mesh,
3985 .leave_mesh = ieee80211_leave_mesh,
3986 #endif
3987 .join_ocb = ieee80211_join_ocb,
3988 .leave_ocb = ieee80211_leave_ocb,
3989 .change_bss = ieee80211_change_bss,
3990 .set_txq_params = ieee80211_set_txq_params,
3991 .set_monitor_channel = ieee80211_set_monitor_channel,
3992 .suspend = ieee80211_suspend,
3993 .resume = ieee80211_resume,
3994 .scan = ieee80211_scan,
3995 .abort_scan = ieee80211_abort_scan,
3996 .sched_scan_start = ieee80211_sched_scan_start,
3997 .sched_scan_stop = ieee80211_sched_scan_stop,
3998 .auth = ieee80211_auth,
3999 .assoc = ieee80211_assoc,
4000 .deauth = ieee80211_deauth,
4001 .disassoc = ieee80211_disassoc,
4002 .join_ibss = ieee80211_join_ibss,
4003 .leave_ibss = ieee80211_leave_ibss,
4004 .set_mcast_rate = ieee80211_set_mcast_rate,
4005 .set_wiphy_params = ieee80211_set_wiphy_params,
4006 .set_tx_power = ieee80211_set_tx_power,
4007 .get_tx_power = ieee80211_get_tx_power,
4008 .set_wds_peer = ieee80211_set_wds_peer,
4009 .rfkill_poll = ieee80211_rfkill_poll,
4010 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4011 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4012 .set_power_mgmt = ieee80211_set_power_mgmt,
4013 .set_bitrate_mask = ieee80211_set_bitrate_mask,
4014 .remain_on_channel = ieee80211_remain_on_channel,
4015 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4016 .mgmt_tx = ieee80211_mgmt_tx,
4017 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4018 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4019 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4020 .mgmt_frame_register = ieee80211_mgmt_frame_register,
4021 .set_antenna = ieee80211_set_antenna,
4022 .get_antenna = ieee80211_get_antenna,
4023 .set_rekey_data = ieee80211_set_rekey_data,
4024 .tdls_oper = ieee80211_tdls_oper,
4025 .tdls_mgmt = ieee80211_tdls_mgmt,
4026 .tdls_channel_switch = ieee80211_tdls_channel_switch,
4027 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4028 .probe_client = ieee80211_probe_client,
4029 .set_noack_map = ieee80211_set_noack_map,
4030 #ifdef CONFIG_PM
4031 .set_wakeup = ieee80211_set_wakeup,
4032 #endif
4033 .get_channel = ieee80211_cfg_get_channel,
4034 .start_radar_detection = ieee80211_start_radar_detection,
4035 .end_cac = ieee80211_end_cac,
4036 .channel_switch = ieee80211_channel_switch,
4037 .set_qos_map = ieee80211_set_qos_map,
4038 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4039 .add_tx_ts = ieee80211_add_tx_ts,
4040 .del_tx_ts = ieee80211_del_tx_ts,
4041 .start_nan = ieee80211_start_nan,
4042 .stop_nan = ieee80211_stop_nan,
4043 .nan_change_conf = ieee80211_nan_change_conf,
4044 .add_nan_func = ieee80211_add_nan_func,
4045 .del_nan_func = ieee80211_del_nan_func,
4046 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4047 .tx_control_port = ieee80211_tx_control_port,
4048 .get_txq_stats = ieee80211_get_txq_stats,
4049 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4050 .start_pmsr = ieee80211_start_pmsr,
4051 .abort_pmsr = ieee80211_abort_pmsr,
4052 .probe_mesh_link = ieee80211_probe_mesh_link,
4053 .set_tid_config = ieee80211_set_tid_config,
4054 .reset_tid_config = ieee80211_reset_tid_config,
4055 };
Linux with added FPC-III support