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
ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data * sdata,struct vif_params * params)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
ieee80211_set_mon_options(struct ieee80211_sub_if_data * sdata,struct vif_params * params)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
ieee80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)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
ieee80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)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
ieee80211_change_iface(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,struct vif_params * params)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
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)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
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)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
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)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
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)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
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)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
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)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 *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)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
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)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
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)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
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)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
ieee80211_add_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)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
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr)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
ieee80211_get_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params * params))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(¶ms, 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 fallthrough;
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 fallthrough;
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, ¶ms);
653 err = 0;
654
655 out:
656 rcu_read_unlock();
657 return err;
658 }
659
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool uni,bool multi)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
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)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
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)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
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)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 WARN_ON_ONCE(sband && !sband->bitrates);
713 if (sband && sband->bitrates) {
714 brate = sband->bitrates[rate->idx].bitrate;
715 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
716 }
717 }
718 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
719 rinfo->bw = RATE_INFO_BW_40;
720 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
721 rinfo->bw = RATE_INFO_BW_80;
722 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
723 rinfo->bw = RATE_INFO_BW_160;
724 else
725 rinfo->bw = RATE_INFO_BW_20;
726 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
727 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
728 }
729
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)730 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
731 int idx, u8 *mac, struct station_info *sinfo)
732 {
733 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
734 struct ieee80211_local *local = sdata->local;
735 struct sta_info *sta;
736 int ret = -ENOENT;
737
738 mutex_lock(&local->sta_mtx);
739
740 sta = sta_info_get_by_idx(sdata, idx);
741 if (sta) {
742 ret = 0;
743 memcpy(mac, sta->sta.addr, ETH_ALEN);
744 sta_set_sinfo(sta, sinfo, true);
745 }
746
747 mutex_unlock(&local->sta_mtx);
748
749 return ret;
750 }
751
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)752 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
753 int idx, struct survey_info *survey)
754 {
755 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
756
757 return drv_get_survey(local, idx, survey);
758 }
759
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)760 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
761 const u8 *mac, struct station_info *sinfo)
762 {
763 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
764 struct ieee80211_local *local = sdata->local;
765 struct sta_info *sta;
766 int ret = -ENOENT;
767
768 mutex_lock(&local->sta_mtx);
769
770 sta = sta_info_get_bss(sdata, mac);
771 if (sta) {
772 ret = 0;
773 sta_set_sinfo(sta, sinfo, true);
774 }
775
776 mutex_unlock(&local->sta_mtx);
777
778 return ret;
779 }
780
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)781 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
782 struct cfg80211_chan_def *chandef)
783 {
784 struct ieee80211_local *local = wiphy_priv(wiphy);
785 struct ieee80211_sub_if_data *sdata;
786 int ret = 0;
787
788 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
789 return 0;
790
791 mutex_lock(&local->mtx);
792 if (local->use_chanctx) {
793 sdata = rtnl_dereference(local->monitor_sdata);
794 if (sdata) {
795 ieee80211_vif_release_channel(sdata);
796 ret = ieee80211_vif_use_channel(sdata, chandef,
797 IEEE80211_CHANCTX_EXCLUSIVE);
798 }
799 } else if (local->open_count == local->monitors) {
800 local->_oper_chandef = *chandef;
801 ieee80211_hw_config(local, 0);
802 }
803
804 if (ret == 0)
805 local->monitor_chandef = *chandef;
806 mutex_unlock(&local->mtx);
807
808 return ret;
809 }
810
ieee80211_set_probe_resp(struct ieee80211_sub_if_data * sdata,const u8 * resp,size_t resp_len,const struct ieee80211_csa_settings * csa)811 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
812 const u8 *resp, size_t resp_len,
813 const struct ieee80211_csa_settings *csa)
814 {
815 struct probe_resp *new, *old;
816
817 if (!resp || !resp_len)
818 return 1;
819
820 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
821
822 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
823 if (!new)
824 return -ENOMEM;
825
826 new->len = resp_len;
827 memcpy(new->data, resp, resp_len);
828
829 if (csa)
830 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
831 csa->n_counter_offsets_presp *
832 sizeof(new->cntdwn_counter_offsets[0]));
833
834 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
835 if (old)
836 kfree_rcu(old, rcu_head);
837
838 return 0;
839 }
840
ieee80211_set_fils_discovery(struct ieee80211_sub_if_data * sdata,struct cfg80211_fils_discovery * params)841 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
842 struct cfg80211_fils_discovery *params)
843 {
844 struct fils_discovery_data *new, *old = NULL;
845 struct ieee80211_fils_discovery *fd;
846
847 if (!params->tmpl || !params->tmpl_len)
848 return -EINVAL;
849
850 fd = &sdata->vif.bss_conf.fils_discovery;
851 fd->min_interval = params->min_interval;
852 fd->max_interval = params->max_interval;
853
854 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
855 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
856 if (!new)
857 return -ENOMEM;
858 new->len = params->tmpl_len;
859 memcpy(new->data, params->tmpl, params->tmpl_len);
860 rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
861
862 if (old)
863 kfree_rcu(old, rcu_head);
864
865 return 0;
866 }
867
868 static int
ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data * sdata,struct cfg80211_unsol_bcast_probe_resp * params)869 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
870 struct cfg80211_unsol_bcast_probe_resp *params)
871 {
872 struct unsol_bcast_probe_resp_data *new, *old = NULL;
873
874 if (!params->tmpl || !params->tmpl_len)
875 return -EINVAL;
876
877 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
878 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
879 if (!new)
880 return -ENOMEM;
881 new->len = params->tmpl_len;
882 memcpy(new->data, params->tmpl, params->tmpl_len);
883 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
884
885 if (old)
886 kfree_rcu(old, rcu_head);
887
888 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
889 params->interval;
890
891 return 0;
892 }
893
ieee80211_set_ftm_responder_params(struct ieee80211_sub_if_data * sdata,const u8 * lci,size_t lci_len,const u8 * civicloc,size_t civicloc_len)894 static int ieee80211_set_ftm_responder_params(
895 struct ieee80211_sub_if_data *sdata,
896 const u8 *lci, size_t lci_len,
897 const u8 *civicloc, size_t civicloc_len)
898 {
899 struct ieee80211_ftm_responder_params *new, *old;
900 struct ieee80211_bss_conf *bss_conf;
901 u8 *pos;
902 int len;
903
904 if (!lci_len && !civicloc_len)
905 return 0;
906
907 bss_conf = &sdata->vif.bss_conf;
908 old = bss_conf->ftmr_params;
909 len = lci_len + civicloc_len;
910
911 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
912 if (!new)
913 return -ENOMEM;
914
915 pos = (u8 *)(new + 1);
916 if (lci_len) {
917 new->lci_len = lci_len;
918 new->lci = pos;
919 memcpy(pos, lci, lci_len);
920 pos += lci_len;
921 }
922
923 if (civicloc_len) {
924 new->civicloc_len = civicloc_len;
925 new->civicloc = pos;
926 memcpy(pos, civicloc, civicloc_len);
927 pos += civicloc_len;
928 }
929
930 bss_conf->ftmr_params = new;
931 kfree(old);
932
933 return 0;
934 }
935
ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa)936 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
937 struct cfg80211_beacon_data *params,
938 const struct ieee80211_csa_settings *csa)
939 {
940 struct beacon_data *new, *old;
941 int new_head_len, new_tail_len;
942 int size, err;
943 u32 changed = BSS_CHANGED_BEACON;
944
945 old = sdata_dereference(sdata->u.ap.beacon, sdata);
946
947
948 /* Need to have a beacon head if we don't have one yet */
949 if (!params->head && !old)
950 return -EINVAL;
951
952 /* new or old head? */
953 if (params->head)
954 new_head_len = params->head_len;
955 else
956 new_head_len = old->head_len;
957
958 /* new or old tail? */
959 if (params->tail || !old)
960 /* params->tail_len will be zero for !params->tail */
961 new_tail_len = params->tail_len;
962 else
963 new_tail_len = old->tail_len;
964
965 size = sizeof(*new) + new_head_len + new_tail_len;
966
967 new = kzalloc(size, GFP_KERNEL);
968 if (!new)
969 return -ENOMEM;
970
971 /* start filling the new info now */
972
973 /*
974 * pointers go into the block we allocated,
975 * memory is | beacon_data | head | tail |
976 */
977 new->head = ((u8 *) new) + sizeof(*new);
978 new->tail = new->head + new_head_len;
979 new->head_len = new_head_len;
980 new->tail_len = new_tail_len;
981
982 if (csa) {
983 new->cntdwn_current_counter = csa->count;
984 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
985 csa->n_counter_offsets_beacon *
986 sizeof(new->cntdwn_counter_offsets[0]));
987 }
988
989 /* copy in head */
990 if (params->head)
991 memcpy(new->head, params->head, new_head_len);
992 else
993 memcpy(new->head, old->head, new_head_len);
994
995 /* copy in optional tail */
996 if (params->tail)
997 memcpy(new->tail, params->tail, new_tail_len);
998 else
999 if (old)
1000 memcpy(new->tail, old->tail, new_tail_len);
1001
1002 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1003 params->probe_resp_len, csa);
1004 if (err < 0) {
1005 kfree(new);
1006 return err;
1007 }
1008 if (err == 0)
1009 changed |= BSS_CHANGED_AP_PROBE_RESP;
1010
1011 if (params->ftm_responder != -1) {
1012 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1013 err = ieee80211_set_ftm_responder_params(sdata,
1014 params->lci,
1015 params->lci_len,
1016 params->civicloc,
1017 params->civicloc_len);
1018
1019 if (err < 0) {
1020 kfree(new);
1021 return err;
1022 }
1023
1024 changed |= BSS_CHANGED_FTM_RESPONDER;
1025 }
1026
1027 rcu_assign_pointer(sdata->u.ap.beacon, new);
1028
1029 if (old)
1030 kfree_rcu(old, rcu_head);
1031
1032 return changed;
1033 }
1034
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1035 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1036 struct cfg80211_ap_settings *params)
1037 {
1038 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1039 struct ieee80211_local *local = sdata->local;
1040 struct beacon_data *old;
1041 struct ieee80211_sub_if_data *vlan;
1042 u32 changed = BSS_CHANGED_BEACON_INT |
1043 BSS_CHANGED_BEACON_ENABLED |
1044 BSS_CHANGED_BEACON |
1045 BSS_CHANGED_SSID |
1046 BSS_CHANGED_P2P_PS |
1047 BSS_CHANGED_TXPOWER |
1048 BSS_CHANGED_TWT;
1049 int i, err;
1050 int prev_beacon_int;
1051
1052 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1053 if (old)
1054 return -EALREADY;
1055
1056 if (params->smps_mode != NL80211_SMPS_OFF)
1057 return -ENOTSUPP;
1058
1059 sdata->smps_mode = IEEE80211_SMPS_OFF;
1060
1061 sdata->needed_rx_chains = sdata->local->rx_chains;
1062
1063 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1064 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1065
1066 if (params->he_cap && params->he_oper) {
1067 sdata->vif.bss_conf.he_support = true;
1068 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1069 le32_get_bits(params->he_oper->he_oper_params,
1070 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1071 sdata->vif.bss_conf.frame_time_rts_th =
1072 le32_get_bits(params->he_oper->he_oper_params,
1073 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1074 changed |= BSS_CHANGED_HE_OBSS_PD;
1075
1076 if (params->he_bss_color.enabled)
1077 changed |= BSS_CHANGED_HE_BSS_COLOR;
1078 }
1079
1080 mutex_lock(&local->mtx);
1081 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
1082 IEEE80211_CHANCTX_SHARED);
1083 if (!err)
1084 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1085 mutex_unlock(&local->mtx);
1086 if (err) {
1087 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1088 return err;
1089 }
1090
1091 /*
1092 * Apply control port protocol, this allows us to
1093 * not encrypt dynamic WEP control frames.
1094 */
1095 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1096 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1097 sdata->control_port_over_nl80211 =
1098 params->crypto.control_port_over_nl80211;
1099 sdata->control_port_no_preauth =
1100 params->crypto.control_port_no_preauth;
1101 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1102 ¶ms->crypto,
1103 sdata->vif.type);
1104
1105 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1106 vlan->control_port_protocol =
1107 params->crypto.control_port_ethertype;
1108 vlan->control_port_no_encrypt =
1109 params->crypto.control_port_no_encrypt;
1110 vlan->control_port_over_nl80211 =
1111 params->crypto.control_port_over_nl80211;
1112 vlan->control_port_no_preauth =
1113 params->crypto.control_port_no_preauth;
1114 vlan->encrypt_headroom =
1115 ieee80211_cs_headroom(sdata->local,
1116 ¶ms->crypto,
1117 vlan->vif.type);
1118 }
1119
1120 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1121 sdata->vif.bss_conf.enable_beacon = true;
1122 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1123 sdata->vif.bss_conf.twt_responder = params->twt_responder;
1124 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd,
1125 sizeof(struct ieee80211_he_obss_pd));
1126 memcpy(&sdata->vif.bss_conf.he_bss_color, ¶ms->he_bss_color,
1127 sizeof(struct ieee80211_he_bss_color));
1128 sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1129 NL80211_BAND_S1GHZ;
1130
1131 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1132 if (params->ssid_len)
1133 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1134 params->ssid_len);
1135 sdata->vif.bss_conf.hidden_ssid =
1136 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1137
1138 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1139 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1140 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1141 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1142 if (params->p2p_opp_ps)
1143 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1144 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1145
1146 sdata->beacon_rate_set = false;
1147 if (wiphy_ext_feature_isset(local->hw.wiphy,
1148 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1149 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1150 sdata->beacon_rateidx_mask[i] =
1151 params->beacon_rate.control[i].legacy;
1152 if (sdata->beacon_rateidx_mask[i])
1153 sdata->beacon_rate_set = true;
1154 }
1155 }
1156
1157 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1158 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1159
1160 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL);
1161 if (err < 0)
1162 goto error;
1163 changed |= err;
1164
1165 if (params->fils_discovery.max_interval) {
1166 err = ieee80211_set_fils_discovery(sdata,
1167 ¶ms->fils_discovery);
1168 if (err < 0)
1169 goto error;
1170 changed |= BSS_CHANGED_FILS_DISCOVERY;
1171 }
1172
1173 if (params->unsol_bcast_probe_resp.interval) {
1174 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1175 ¶ms->unsol_bcast_probe_resp);
1176 if (err < 0)
1177 goto error;
1178 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1179 }
1180
1181 err = drv_start_ap(sdata->local, sdata);
1182 if (err) {
1183 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1184
1185 if (old)
1186 kfree_rcu(old, rcu_head);
1187 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1188 goto error;
1189 }
1190
1191 ieee80211_recalc_dtim(local, sdata);
1192 ieee80211_bss_info_change_notify(sdata, changed);
1193
1194 netif_carrier_on(dev);
1195 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1196 netif_carrier_on(vlan->dev);
1197
1198 return 0;
1199
1200 error:
1201 ieee80211_vif_release_channel(sdata);
1202 return err;
1203 }
1204
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * params)1205 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1206 struct cfg80211_beacon_data *params)
1207 {
1208 struct ieee80211_sub_if_data *sdata;
1209 struct beacon_data *old;
1210 int err;
1211
1212 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1213 sdata_assert_lock(sdata);
1214
1215 /* don't allow changing the beacon while CSA is in place - offset
1216 * of channel switch counter may change
1217 */
1218 if (sdata->vif.csa_active)
1219 return -EBUSY;
1220
1221 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1222 if (!old)
1223 return -ENOENT;
1224
1225 err = ieee80211_assign_beacon(sdata, params, NULL);
1226 if (err < 0)
1227 return err;
1228 ieee80211_bss_info_change_notify(sdata, err);
1229 return 0;
1230 }
1231
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev)1232 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1233 {
1234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1235 struct ieee80211_sub_if_data *vlan;
1236 struct ieee80211_local *local = sdata->local;
1237 struct beacon_data *old_beacon;
1238 struct probe_resp *old_probe_resp;
1239 struct fils_discovery_data *old_fils_discovery;
1240 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1241 struct cfg80211_chan_def chandef;
1242
1243 sdata_assert_lock(sdata);
1244
1245 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1246 if (!old_beacon)
1247 return -ENOENT;
1248 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1249 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1250 sdata);
1251 old_unsol_bcast_probe_resp =
1252 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1253 sdata);
1254
1255 /* abort any running channel switch */
1256 mutex_lock(&local->mtx);
1257 sdata->vif.csa_active = false;
1258 if (sdata->csa_block_tx) {
1259 ieee80211_wake_vif_queues(local, sdata,
1260 IEEE80211_QUEUE_STOP_REASON_CSA);
1261 sdata->csa_block_tx = false;
1262 }
1263
1264 mutex_unlock(&local->mtx);
1265
1266 kfree(sdata->u.ap.next_beacon);
1267 sdata->u.ap.next_beacon = NULL;
1268
1269 /* turn off carrier for this interface and dependent VLANs */
1270 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1271 netif_carrier_off(vlan->dev);
1272 netif_carrier_off(dev);
1273
1274 /* remove beacon and probe response */
1275 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1276 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1277 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1278 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1279 kfree_rcu(old_beacon, rcu_head);
1280 if (old_probe_resp)
1281 kfree_rcu(old_probe_resp, rcu_head);
1282 if (old_fils_discovery)
1283 kfree_rcu(old_fils_discovery, rcu_head);
1284 if (old_unsol_bcast_probe_resp)
1285 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1286
1287 kfree(sdata->vif.bss_conf.ftmr_params);
1288 sdata->vif.bss_conf.ftmr_params = NULL;
1289
1290 __sta_info_flush(sdata, true);
1291 ieee80211_free_keys(sdata, true);
1292
1293 sdata->vif.bss_conf.enable_beacon = false;
1294 sdata->beacon_rate_set = false;
1295 sdata->vif.bss_conf.ssid_len = 0;
1296 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1297 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1298
1299 if (sdata->wdev.cac_started) {
1300 chandef = sdata->vif.bss_conf.chandef;
1301 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1302 cfg80211_cac_event(sdata->dev, &chandef,
1303 NL80211_RADAR_CAC_ABORTED,
1304 GFP_KERNEL);
1305 }
1306
1307 drv_stop_ap(sdata->local, sdata);
1308
1309 /* free all potentially still buffered bcast frames */
1310 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1311 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1312
1313 mutex_lock(&local->mtx);
1314 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1315 ieee80211_vif_release_channel(sdata);
1316 mutex_unlock(&local->mtx);
1317
1318 return 0;
1319 }
1320
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1321 static int sta_apply_auth_flags(struct ieee80211_local *local,
1322 struct sta_info *sta,
1323 u32 mask, u32 set)
1324 {
1325 int ret;
1326
1327 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1328 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1329 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1330 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1331 if (ret)
1332 return ret;
1333 }
1334
1335 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1336 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1337 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1338 /*
1339 * When peer becomes associated, init rate control as
1340 * well. Some drivers require rate control initialized
1341 * before drv_sta_state() is called.
1342 */
1343 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1344 rate_control_rate_init(sta);
1345
1346 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1347 if (ret)
1348 return ret;
1349 }
1350
1351 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1352 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1353 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1354 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1355 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1356 else
1357 ret = 0;
1358 if (ret)
1359 return ret;
1360 }
1361
1362 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1363 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1364 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1365 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1366 if (ret)
1367 return ret;
1368 }
1369
1370 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1371 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1372 test_sta_flag(sta, WLAN_STA_AUTH)) {
1373 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1374 if (ret)
1375 return ret;
1376 }
1377
1378 return 0;
1379 }
1380
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1381 static void sta_apply_mesh_params(struct ieee80211_local *local,
1382 struct sta_info *sta,
1383 struct station_parameters *params)
1384 {
1385 #ifdef CONFIG_MAC80211_MESH
1386 struct ieee80211_sub_if_data *sdata = sta->sdata;
1387 u32 changed = 0;
1388
1389 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1390 switch (params->plink_state) {
1391 case NL80211_PLINK_ESTAB:
1392 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1393 changed = mesh_plink_inc_estab_count(sdata);
1394 sta->mesh->plink_state = params->plink_state;
1395 sta->mesh->aid = params->peer_aid;
1396
1397 ieee80211_mps_sta_status_update(sta);
1398 changed |= ieee80211_mps_set_sta_local_pm(sta,
1399 sdata->u.mesh.mshcfg.power_mode);
1400
1401 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1402 /* init at low value */
1403 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1404
1405 break;
1406 case NL80211_PLINK_LISTEN:
1407 case NL80211_PLINK_BLOCKED:
1408 case NL80211_PLINK_OPN_SNT:
1409 case NL80211_PLINK_OPN_RCVD:
1410 case NL80211_PLINK_CNF_RCVD:
1411 case NL80211_PLINK_HOLDING:
1412 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1413 changed = mesh_plink_dec_estab_count(sdata);
1414 sta->mesh->plink_state = params->plink_state;
1415
1416 ieee80211_mps_sta_status_update(sta);
1417 changed |= ieee80211_mps_set_sta_local_pm(sta,
1418 NL80211_MESH_POWER_UNKNOWN);
1419 break;
1420 default:
1421 /* nothing */
1422 break;
1423 }
1424 }
1425
1426 switch (params->plink_action) {
1427 case NL80211_PLINK_ACTION_NO_ACTION:
1428 /* nothing */
1429 break;
1430 case NL80211_PLINK_ACTION_OPEN:
1431 changed |= mesh_plink_open(sta);
1432 break;
1433 case NL80211_PLINK_ACTION_BLOCK:
1434 changed |= mesh_plink_block(sta);
1435 break;
1436 }
1437
1438 if (params->local_pm)
1439 changed |= ieee80211_mps_set_sta_local_pm(sta,
1440 params->local_pm);
1441
1442 ieee80211_mbss_info_change_notify(sdata, changed);
1443 #endif
1444 }
1445
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1446 static int sta_apply_parameters(struct ieee80211_local *local,
1447 struct sta_info *sta,
1448 struct station_parameters *params)
1449 {
1450 int ret = 0;
1451 struct ieee80211_supported_band *sband;
1452 struct ieee80211_sub_if_data *sdata = sta->sdata;
1453 u32 mask, set;
1454
1455 sband = ieee80211_get_sband(sdata);
1456 if (!sband)
1457 return -EINVAL;
1458
1459 mask = params->sta_flags_mask;
1460 set = params->sta_flags_set;
1461
1462 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1463 /*
1464 * In mesh mode, ASSOCIATED isn't part of the nl80211
1465 * API but must follow AUTHENTICATED for driver state.
1466 */
1467 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1468 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1469 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1470 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1471 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1472 /*
1473 * TDLS -- everything follows authorized, but
1474 * only becoming authorized is possible, not
1475 * going back
1476 */
1477 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1478 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1479 BIT(NL80211_STA_FLAG_ASSOCIATED);
1480 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1481 BIT(NL80211_STA_FLAG_ASSOCIATED);
1482 }
1483 }
1484
1485 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1486 local->hw.queues >= IEEE80211_NUM_ACS)
1487 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1488
1489 /* auth flags will be set later for TDLS,
1490 * and for unassociated stations that move to assocaited */
1491 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1492 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1493 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1494 ret = sta_apply_auth_flags(local, sta, mask, set);
1495 if (ret)
1496 return ret;
1497 }
1498
1499 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1500 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1501 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1502 else
1503 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1504 }
1505
1506 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1507 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1508 if (set & BIT(NL80211_STA_FLAG_MFP))
1509 set_sta_flag(sta, WLAN_STA_MFP);
1510 else
1511 clear_sta_flag(sta, WLAN_STA_MFP);
1512 }
1513
1514 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1515 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1516 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1517 else
1518 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1519 }
1520
1521 /* mark TDLS channel switch support, if the AP allows it */
1522 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1523 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1524 params->ext_capab_len >= 4 &&
1525 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1526 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1527
1528 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1529 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1530 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1531 params->ext_capab_len >= 8 &&
1532 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1533 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1534
1535 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1536 sta->sta.uapsd_queues = params->uapsd_queues;
1537 sta->sta.max_sp = params->max_sp;
1538 }
1539
1540 /* The sender might not have sent the last bit, consider it to be 0 */
1541 if (params->ext_capab_len >= 8) {
1542 u8 val = (params->ext_capab[7] &
1543 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1544
1545 /* we did get all the bits, take the MSB as well */
1546 if (params->ext_capab_len >= 9) {
1547 u8 val_msb = params->ext_capab[8] &
1548 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1549 val_msb <<= 1;
1550 val |= val_msb;
1551 }
1552
1553 switch (val) {
1554 case 1:
1555 sta->sta.max_amsdu_subframes = 32;
1556 break;
1557 case 2:
1558 sta->sta.max_amsdu_subframes = 16;
1559 break;
1560 case 3:
1561 sta->sta.max_amsdu_subframes = 8;
1562 break;
1563 default:
1564 sta->sta.max_amsdu_subframes = 0;
1565 }
1566 }
1567
1568 /*
1569 * cfg80211 validates this (1-2007) and allows setting the AID
1570 * only when creating a new station entry
1571 */
1572 if (params->aid)
1573 sta->sta.aid = params->aid;
1574
1575 /*
1576 * Some of the following updates would be racy if called on an
1577 * existing station, via ieee80211_change_station(). However,
1578 * all such changes are rejected by cfg80211 except for updates
1579 * changing the supported rates on an existing but not yet used
1580 * TDLS peer.
1581 */
1582
1583 if (params->listen_interval >= 0)
1584 sta->listen_interval = params->listen_interval;
1585
1586 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1587 sta->sta.txpwr.type = params->txpwr.type;
1588 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1589 sta->sta.txpwr.power = params->txpwr.power;
1590 ret = drv_sta_set_txpwr(local, sdata, sta);
1591 if (ret)
1592 return ret;
1593 }
1594
1595 if (params->supported_rates && params->supported_rates_len) {
1596 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1597 sband, params->supported_rates,
1598 params->supported_rates_len,
1599 &sta->sta.supp_rates[sband->band]);
1600 }
1601
1602 if (params->ht_capa)
1603 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1604 params->ht_capa, sta);
1605
1606 /* VHT can override some HT caps such as the A-MSDU max length */
1607 if (params->vht_capa)
1608 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1609 params->vht_capa, sta);
1610
1611 if (params->he_capa)
1612 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1613 (void *)params->he_capa,
1614 params->he_capa_len,
1615 (void *)params->he_6ghz_capa,
1616 sta);
1617
1618 if (params->opmode_notif_used) {
1619 /* returned value is only needed for rc update, but the
1620 * rc isn't initialized here yet, so ignore it
1621 */
1622 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1623 sband->band);
1624 }
1625
1626 if (params->support_p2p_ps >= 0)
1627 sta->sta.support_p2p_ps = params->support_p2p_ps;
1628
1629 if (ieee80211_vif_is_mesh(&sdata->vif))
1630 sta_apply_mesh_params(local, sta, params);
1631
1632 if (params->airtime_weight)
1633 sta->airtime_weight = params->airtime_weight;
1634
1635 /* set the STA state after all sta info from usermode has been set */
1636 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1637 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1638 ret = sta_apply_auth_flags(local, sta, mask, set);
1639 if (ret)
1640 return ret;
1641 }
1642
1643 return 0;
1644 }
1645
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1646 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1647 const u8 *mac,
1648 struct station_parameters *params)
1649 {
1650 struct ieee80211_local *local = wiphy_priv(wiphy);
1651 struct sta_info *sta;
1652 struct ieee80211_sub_if_data *sdata;
1653 int err;
1654
1655 if (params->vlan) {
1656 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1657
1658 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1659 sdata->vif.type != NL80211_IFTYPE_AP)
1660 return -EINVAL;
1661 } else
1662 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1663
1664 if (ether_addr_equal(mac, sdata->vif.addr))
1665 return -EINVAL;
1666
1667 if (!is_valid_ether_addr(mac))
1668 return -EINVAL;
1669
1670 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1671 sdata->vif.type == NL80211_IFTYPE_STATION &&
1672 !sdata->u.mgd.associated)
1673 return -EINVAL;
1674
1675 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1676 if (!sta)
1677 return -ENOMEM;
1678
1679 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1680 sta->sta.tdls = true;
1681
1682 err = sta_apply_parameters(local, sta, params);
1683 if (err) {
1684 sta_info_free(local, sta);
1685 return err;
1686 }
1687
1688 /*
1689 * for TDLS and for unassociated station, rate control should be
1690 * initialized only when rates are known and station is marked
1691 * authorized/associated
1692 */
1693 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1694 test_sta_flag(sta, WLAN_STA_ASSOC))
1695 rate_control_rate_init(sta);
1696
1697 err = sta_info_insert_rcu(sta);
1698 if (err) {
1699 rcu_read_unlock();
1700 return err;
1701 }
1702
1703 rcu_read_unlock();
1704
1705 return 0;
1706 }
1707
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1708 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1709 struct station_del_parameters *params)
1710 {
1711 struct ieee80211_sub_if_data *sdata;
1712
1713 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1714
1715 if (params->mac)
1716 return sta_info_destroy_addr_bss(sdata, params->mac);
1717
1718 sta_info_flush(sdata);
1719 return 0;
1720 }
1721
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1722 static int ieee80211_change_station(struct wiphy *wiphy,
1723 struct net_device *dev, const u8 *mac,
1724 struct station_parameters *params)
1725 {
1726 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1727 struct ieee80211_local *local = wiphy_priv(wiphy);
1728 struct sta_info *sta;
1729 struct ieee80211_sub_if_data *vlansdata;
1730 enum cfg80211_station_type statype;
1731 int err;
1732
1733 mutex_lock(&local->sta_mtx);
1734
1735 sta = sta_info_get_bss(sdata, mac);
1736 if (!sta) {
1737 err = -ENOENT;
1738 goto out_err;
1739 }
1740
1741 switch (sdata->vif.type) {
1742 case NL80211_IFTYPE_MESH_POINT:
1743 if (sdata->u.mesh.user_mpm)
1744 statype = CFG80211_STA_MESH_PEER_USER;
1745 else
1746 statype = CFG80211_STA_MESH_PEER_KERNEL;
1747 break;
1748 case NL80211_IFTYPE_ADHOC:
1749 statype = CFG80211_STA_IBSS;
1750 break;
1751 case NL80211_IFTYPE_STATION:
1752 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1753 statype = CFG80211_STA_AP_STA;
1754 break;
1755 }
1756 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1757 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1758 else
1759 statype = CFG80211_STA_TDLS_PEER_SETUP;
1760 break;
1761 case NL80211_IFTYPE_AP:
1762 case NL80211_IFTYPE_AP_VLAN:
1763 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1764 statype = CFG80211_STA_AP_CLIENT;
1765 else
1766 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1767 break;
1768 default:
1769 err = -EOPNOTSUPP;
1770 goto out_err;
1771 }
1772
1773 err = cfg80211_check_station_change(wiphy, params, statype);
1774 if (err)
1775 goto out_err;
1776
1777 if (params->vlan && params->vlan != sta->sdata->dev) {
1778 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1779
1780 if (params->vlan->ieee80211_ptr->use_4addr) {
1781 if (vlansdata->u.vlan.sta) {
1782 err = -EBUSY;
1783 goto out_err;
1784 }
1785
1786 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1787 __ieee80211_check_fast_rx_iface(vlansdata);
1788 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1789 }
1790
1791 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1792 sta->sdata->u.vlan.sta)
1793 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1794
1795 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1796 ieee80211_vif_dec_num_mcast(sta->sdata);
1797
1798 sta->sdata = vlansdata;
1799 ieee80211_check_fast_xmit(sta);
1800
1801 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1802 ieee80211_vif_inc_num_mcast(sta->sdata);
1803 cfg80211_send_layer2_update(sta->sdata->dev,
1804 sta->sta.addr);
1805 }
1806 }
1807
1808 err = sta_apply_parameters(local, sta, params);
1809 if (err)
1810 goto out_err;
1811
1812 mutex_unlock(&local->sta_mtx);
1813
1814 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1815 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1816 ieee80211_recalc_ps(local);
1817 ieee80211_recalc_ps_vif(sdata);
1818 }
1819
1820 return 0;
1821 out_err:
1822 mutex_unlock(&local->sta_mtx);
1823 return err;
1824 }
1825
1826 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1827 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1828 const u8 *dst, const u8 *next_hop)
1829 {
1830 struct ieee80211_sub_if_data *sdata;
1831 struct mesh_path *mpath;
1832 struct sta_info *sta;
1833
1834 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1835
1836 rcu_read_lock();
1837 sta = sta_info_get(sdata, next_hop);
1838 if (!sta) {
1839 rcu_read_unlock();
1840 return -ENOENT;
1841 }
1842
1843 mpath = mesh_path_add(sdata, dst);
1844 if (IS_ERR(mpath)) {
1845 rcu_read_unlock();
1846 return PTR_ERR(mpath);
1847 }
1848
1849 mesh_path_fix_nexthop(mpath, sta);
1850
1851 rcu_read_unlock();
1852 return 0;
1853 }
1854
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)1855 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1856 const u8 *dst)
1857 {
1858 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1859
1860 if (dst)
1861 return mesh_path_del(sdata, dst);
1862
1863 mesh_path_flush_by_iface(sdata);
1864 return 0;
1865 }
1866
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1867 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1868 const u8 *dst, const u8 *next_hop)
1869 {
1870 struct ieee80211_sub_if_data *sdata;
1871 struct mesh_path *mpath;
1872 struct sta_info *sta;
1873
1874 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1875
1876 rcu_read_lock();
1877
1878 sta = sta_info_get(sdata, next_hop);
1879 if (!sta) {
1880 rcu_read_unlock();
1881 return -ENOENT;
1882 }
1883
1884 mpath = mesh_path_lookup(sdata, dst);
1885 if (!mpath) {
1886 rcu_read_unlock();
1887 return -ENOENT;
1888 }
1889
1890 mesh_path_fix_nexthop(mpath, sta);
1891
1892 rcu_read_unlock();
1893 return 0;
1894 }
1895
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)1896 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1897 struct mpath_info *pinfo)
1898 {
1899 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1900
1901 if (next_hop_sta)
1902 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1903 else
1904 eth_zero_addr(next_hop);
1905
1906 memset(pinfo, 0, sizeof(*pinfo));
1907
1908 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1909
1910 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1911 MPATH_INFO_SN |
1912 MPATH_INFO_METRIC |
1913 MPATH_INFO_EXPTIME |
1914 MPATH_INFO_DISCOVERY_TIMEOUT |
1915 MPATH_INFO_DISCOVERY_RETRIES |
1916 MPATH_INFO_FLAGS |
1917 MPATH_INFO_HOP_COUNT |
1918 MPATH_INFO_PATH_CHANGE;
1919
1920 pinfo->frame_qlen = mpath->frame_queue.qlen;
1921 pinfo->sn = mpath->sn;
1922 pinfo->metric = mpath->metric;
1923 if (time_before(jiffies, mpath->exp_time))
1924 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1925 pinfo->discovery_timeout =
1926 jiffies_to_msecs(mpath->discovery_timeout);
1927 pinfo->discovery_retries = mpath->discovery_retries;
1928 if (mpath->flags & MESH_PATH_ACTIVE)
1929 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1930 if (mpath->flags & MESH_PATH_RESOLVING)
1931 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1932 if (mpath->flags & MESH_PATH_SN_VALID)
1933 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1934 if (mpath->flags & MESH_PATH_FIXED)
1935 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1936 if (mpath->flags & MESH_PATH_RESOLVED)
1937 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1938 pinfo->hop_count = mpath->hop_count;
1939 pinfo->path_change_count = mpath->path_change_count;
1940 }
1941
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1942 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1943 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1944
1945 {
1946 struct ieee80211_sub_if_data *sdata;
1947 struct mesh_path *mpath;
1948
1949 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1950
1951 rcu_read_lock();
1952 mpath = mesh_path_lookup(sdata, dst);
1953 if (!mpath) {
1954 rcu_read_unlock();
1955 return -ENOENT;
1956 }
1957 memcpy(dst, mpath->dst, ETH_ALEN);
1958 mpath_set_pinfo(mpath, next_hop, pinfo);
1959 rcu_read_unlock();
1960 return 0;
1961 }
1962
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1963 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1964 int idx, u8 *dst, u8 *next_hop,
1965 struct mpath_info *pinfo)
1966 {
1967 struct ieee80211_sub_if_data *sdata;
1968 struct mesh_path *mpath;
1969
1970 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1971
1972 rcu_read_lock();
1973 mpath = mesh_path_lookup_by_idx(sdata, idx);
1974 if (!mpath) {
1975 rcu_read_unlock();
1976 return -ENOENT;
1977 }
1978 memcpy(dst, mpath->dst, ETH_ALEN);
1979 mpath_set_pinfo(mpath, next_hop, pinfo);
1980 rcu_read_unlock();
1981 return 0;
1982 }
1983
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)1984 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1985 struct mpath_info *pinfo)
1986 {
1987 memset(pinfo, 0, sizeof(*pinfo));
1988 memcpy(mpp, mpath->mpp, ETH_ALEN);
1989
1990 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1991 }
1992
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)1993 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1994 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1995
1996 {
1997 struct ieee80211_sub_if_data *sdata;
1998 struct mesh_path *mpath;
1999
2000 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2001
2002 rcu_read_lock();
2003 mpath = mpp_path_lookup(sdata, dst);
2004 if (!mpath) {
2005 rcu_read_unlock();
2006 return -ENOENT;
2007 }
2008 memcpy(dst, mpath->dst, ETH_ALEN);
2009 mpp_set_pinfo(mpath, mpp, pinfo);
2010 rcu_read_unlock();
2011 return 0;
2012 }
2013
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2014 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2015 int idx, u8 *dst, u8 *mpp,
2016 struct mpath_info *pinfo)
2017 {
2018 struct ieee80211_sub_if_data *sdata;
2019 struct mesh_path *mpath;
2020
2021 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2022
2023 rcu_read_lock();
2024 mpath = mpp_path_lookup_by_idx(sdata, idx);
2025 if (!mpath) {
2026 rcu_read_unlock();
2027 return -ENOENT;
2028 }
2029 memcpy(dst, mpath->dst, ETH_ALEN);
2030 mpp_set_pinfo(mpath, mpp, pinfo);
2031 rcu_read_unlock();
2032 return 0;
2033 }
2034
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2035 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2036 struct net_device *dev,
2037 struct mesh_config *conf)
2038 {
2039 struct ieee80211_sub_if_data *sdata;
2040 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2041
2042 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2043 return 0;
2044 }
2045
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2046 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2047 {
2048 return (mask >> (parm-1)) & 0x1;
2049 }
2050
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2051 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2052 const struct mesh_setup *setup)
2053 {
2054 u8 *new_ie;
2055 const u8 *old_ie;
2056 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2057 struct ieee80211_sub_if_data, u.mesh);
2058 int i;
2059
2060 /* allocate information elements */
2061 new_ie = NULL;
2062 old_ie = ifmsh->ie;
2063
2064 if (setup->ie_len) {
2065 new_ie = kmemdup(setup->ie, setup->ie_len,
2066 GFP_KERNEL);
2067 if (!new_ie)
2068 return -ENOMEM;
2069 }
2070 ifmsh->ie_len = setup->ie_len;
2071 ifmsh->ie = new_ie;
2072 kfree(old_ie);
2073
2074 /* now copy the rest of the setup parameters */
2075 ifmsh->mesh_id_len = setup->mesh_id_len;
2076 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2077 ifmsh->mesh_sp_id = setup->sync_method;
2078 ifmsh->mesh_pp_id = setup->path_sel_proto;
2079 ifmsh->mesh_pm_id = setup->path_metric;
2080 ifmsh->user_mpm = setup->user_mpm;
2081 ifmsh->mesh_auth_id = setup->auth_id;
2082 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2083 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2084 if (setup->is_authenticated)
2085 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2086 if (setup->is_secure)
2087 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2088
2089 /* mcast rate setting in Mesh Node */
2090 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2091 sizeof(setup->mcast_rate));
2092 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2093
2094 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2095 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2096
2097 sdata->beacon_rate_set = false;
2098 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2099 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2100 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2101 sdata->beacon_rateidx_mask[i] =
2102 setup->beacon_rate.control[i].legacy;
2103 if (sdata->beacon_rateidx_mask[i])
2104 sdata->beacon_rate_set = true;
2105 }
2106 }
2107
2108 return 0;
2109 }
2110
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2111 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2112 struct net_device *dev, u32 mask,
2113 const struct mesh_config *nconf)
2114 {
2115 struct mesh_config *conf;
2116 struct ieee80211_sub_if_data *sdata;
2117 struct ieee80211_if_mesh *ifmsh;
2118
2119 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2120 ifmsh = &sdata->u.mesh;
2121
2122 /* Set the config options which we are interested in setting */
2123 conf = &(sdata->u.mesh.mshcfg);
2124 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2125 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2126 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2127 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2128 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2129 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2130 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2131 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2132 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2133 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2134 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2135 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2136 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2137 conf->element_ttl = nconf->element_ttl;
2138 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2139 if (ifmsh->user_mpm)
2140 return -EBUSY;
2141 conf->auto_open_plinks = nconf->auto_open_plinks;
2142 }
2143 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2144 conf->dot11MeshNbrOffsetMaxNeighbor =
2145 nconf->dot11MeshNbrOffsetMaxNeighbor;
2146 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2147 conf->dot11MeshHWMPmaxPREQretries =
2148 nconf->dot11MeshHWMPmaxPREQretries;
2149 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2150 conf->path_refresh_time = nconf->path_refresh_time;
2151 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2152 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2153 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2154 conf->dot11MeshHWMPactivePathTimeout =
2155 nconf->dot11MeshHWMPactivePathTimeout;
2156 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2157 conf->dot11MeshHWMPpreqMinInterval =
2158 nconf->dot11MeshHWMPpreqMinInterval;
2159 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2160 conf->dot11MeshHWMPperrMinInterval =
2161 nconf->dot11MeshHWMPperrMinInterval;
2162 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2163 mask))
2164 conf->dot11MeshHWMPnetDiameterTraversalTime =
2165 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2166 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2167 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2168 ieee80211_mesh_root_setup(ifmsh);
2169 }
2170 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2171 /* our current gate announcement implementation rides on root
2172 * announcements, so require this ifmsh to also be a root node
2173 * */
2174 if (nconf->dot11MeshGateAnnouncementProtocol &&
2175 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2176 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2177 ieee80211_mesh_root_setup(ifmsh);
2178 }
2179 conf->dot11MeshGateAnnouncementProtocol =
2180 nconf->dot11MeshGateAnnouncementProtocol;
2181 }
2182 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2183 conf->dot11MeshHWMPRannInterval =
2184 nconf->dot11MeshHWMPRannInterval;
2185 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2186 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2187 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2188 /* our RSSI threshold implementation is supported only for
2189 * devices that report signal in dBm.
2190 */
2191 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2192 return -ENOTSUPP;
2193 conf->rssi_threshold = nconf->rssi_threshold;
2194 }
2195 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2196 conf->ht_opmode = nconf->ht_opmode;
2197 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2198 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2199 }
2200 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2201 conf->dot11MeshHWMPactivePathToRootTimeout =
2202 nconf->dot11MeshHWMPactivePathToRootTimeout;
2203 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2204 conf->dot11MeshHWMProotInterval =
2205 nconf->dot11MeshHWMProotInterval;
2206 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2207 conf->dot11MeshHWMPconfirmationInterval =
2208 nconf->dot11MeshHWMPconfirmationInterval;
2209 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2210 conf->power_mode = nconf->power_mode;
2211 ieee80211_mps_local_status_update(sdata);
2212 }
2213 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2214 conf->dot11MeshAwakeWindowDuration =
2215 nconf->dot11MeshAwakeWindowDuration;
2216 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2217 conf->plink_timeout = nconf->plink_timeout;
2218 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2219 conf->dot11MeshConnectedToMeshGate =
2220 nconf->dot11MeshConnectedToMeshGate;
2221 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2222 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2223 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2224 conf->dot11MeshConnectedToAuthServer =
2225 nconf->dot11MeshConnectedToAuthServer;
2226 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2227 return 0;
2228 }
2229
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2230 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2231 const struct mesh_config *conf,
2232 const struct mesh_setup *setup)
2233 {
2234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2235 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2236 int err;
2237
2238 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2239 err = copy_mesh_setup(ifmsh, setup);
2240 if (err)
2241 return err;
2242
2243 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2244
2245 /* can mesh use other SMPS modes? */
2246 sdata->smps_mode = IEEE80211_SMPS_OFF;
2247 sdata->needed_rx_chains = sdata->local->rx_chains;
2248
2249 mutex_lock(&sdata->local->mtx);
2250 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2251 IEEE80211_CHANCTX_SHARED);
2252 mutex_unlock(&sdata->local->mtx);
2253 if (err)
2254 return err;
2255
2256 return ieee80211_start_mesh(sdata);
2257 }
2258
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2259 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2260 {
2261 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2262
2263 ieee80211_stop_mesh(sdata);
2264 mutex_lock(&sdata->local->mtx);
2265 ieee80211_vif_release_channel(sdata);
2266 kfree(sdata->u.mesh.ie);
2267 mutex_unlock(&sdata->local->mtx);
2268
2269 return 0;
2270 }
2271 #endif
2272
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2273 static int ieee80211_change_bss(struct wiphy *wiphy,
2274 struct net_device *dev,
2275 struct bss_parameters *params)
2276 {
2277 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2278 struct ieee80211_supported_band *sband;
2279 u32 changed = 0;
2280
2281 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2282 return -ENOENT;
2283
2284 sband = ieee80211_get_sband(sdata);
2285 if (!sband)
2286 return -EINVAL;
2287
2288 if (params->use_cts_prot >= 0) {
2289 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2290 changed |= BSS_CHANGED_ERP_CTS_PROT;
2291 }
2292 if (params->use_short_preamble >= 0) {
2293 sdata->vif.bss_conf.use_short_preamble =
2294 params->use_short_preamble;
2295 changed |= BSS_CHANGED_ERP_PREAMBLE;
2296 }
2297
2298 if (!sdata->vif.bss_conf.use_short_slot &&
2299 (sband->band == NL80211_BAND_5GHZ ||
2300 sband->band == NL80211_BAND_6GHZ)) {
2301 sdata->vif.bss_conf.use_short_slot = true;
2302 changed |= BSS_CHANGED_ERP_SLOT;
2303 }
2304
2305 if (params->use_short_slot_time >= 0) {
2306 sdata->vif.bss_conf.use_short_slot =
2307 params->use_short_slot_time;
2308 changed |= BSS_CHANGED_ERP_SLOT;
2309 }
2310
2311 if (params->basic_rates) {
2312 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2313 wiphy->bands[sband->band],
2314 params->basic_rates,
2315 params->basic_rates_len,
2316 &sdata->vif.bss_conf.basic_rates);
2317 changed |= BSS_CHANGED_BASIC_RATES;
2318 ieee80211_check_rate_mask(sdata);
2319 }
2320
2321 if (params->ap_isolate >= 0) {
2322 if (params->ap_isolate)
2323 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2324 else
2325 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2326 ieee80211_check_fast_rx_iface(sdata);
2327 }
2328
2329 if (params->ht_opmode >= 0) {
2330 sdata->vif.bss_conf.ht_operation_mode =
2331 (u16) params->ht_opmode;
2332 changed |= BSS_CHANGED_HT;
2333 }
2334
2335 if (params->p2p_ctwindow >= 0) {
2336 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2337 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2338 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2339 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2340 changed |= BSS_CHANGED_P2P_PS;
2341 }
2342
2343 if (params->p2p_opp_ps > 0) {
2344 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2345 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2346 changed |= BSS_CHANGED_P2P_PS;
2347 } else if (params->p2p_opp_ps == 0) {
2348 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2349 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2350 changed |= BSS_CHANGED_P2P_PS;
2351 }
2352
2353 ieee80211_bss_info_change_notify(sdata, changed);
2354
2355 return 0;
2356 }
2357
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2358 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2359 struct net_device *dev,
2360 struct ieee80211_txq_params *params)
2361 {
2362 struct ieee80211_local *local = wiphy_priv(wiphy);
2363 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2364 struct ieee80211_tx_queue_params p;
2365
2366 if (!local->ops->conf_tx)
2367 return -EOPNOTSUPP;
2368
2369 if (local->hw.queues < IEEE80211_NUM_ACS)
2370 return -EOPNOTSUPP;
2371
2372 memset(&p, 0, sizeof(p));
2373 p.aifs = params->aifs;
2374 p.cw_max = params->cwmax;
2375 p.cw_min = params->cwmin;
2376 p.txop = params->txop;
2377
2378 /*
2379 * Setting tx queue params disables u-apsd because it's only
2380 * called in master mode.
2381 */
2382 p.uapsd = false;
2383
2384 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2385
2386 sdata->tx_conf[params->ac] = p;
2387 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2388 wiphy_debug(local->hw.wiphy,
2389 "failed to set TX queue parameters for AC %d\n",
2390 params->ac);
2391 return -EINVAL;
2392 }
2393
2394 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2395
2396 return 0;
2397 }
2398
2399 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2400 static int ieee80211_suspend(struct wiphy *wiphy,
2401 struct cfg80211_wowlan *wowlan)
2402 {
2403 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2404 }
2405
ieee80211_resume(struct wiphy * wiphy)2406 static int ieee80211_resume(struct wiphy *wiphy)
2407 {
2408 return __ieee80211_resume(wiphy_priv(wiphy));
2409 }
2410 #else
2411 #define ieee80211_suspend NULL
2412 #define ieee80211_resume NULL
2413 #endif
2414
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2415 static int ieee80211_scan(struct wiphy *wiphy,
2416 struct cfg80211_scan_request *req)
2417 {
2418 struct ieee80211_sub_if_data *sdata;
2419
2420 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2421
2422 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2423 case NL80211_IFTYPE_STATION:
2424 case NL80211_IFTYPE_ADHOC:
2425 case NL80211_IFTYPE_MESH_POINT:
2426 case NL80211_IFTYPE_P2P_CLIENT:
2427 case NL80211_IFTYPE_P2P_DEVICE:
2428 break;
2429 case NL80211_IFTYPE_P2P_GO:
2430 if (sdata->local->ops->hw_scan)
2431 break;
2432 /*
2433 * FIXME: implement NoA while scanning in software,
2434 * for now fall through to allow scanning only when
2435 * beaconing hasn't been configured yet
2436 */
2437 fallthrough;
2438 case NL80211_IFTYPE_AP:
2439 /*
2440 * If the scan has been forced (and the driver supports
2441 * forcing), don't care about being beaconing already.
2442 * This will create problems to the attached stations (e.g. all
2443 * the frames sent while scanning on other channel will be
2444 * lost)
2445 */
2446 if (sdata->u.ap.beacon &&
2447 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2448 !(req->flags & NL80211_SCAN_FLAG_AP)))
2449 return -EOPNOTSUPP;
2450 break;
2451 case NL80211_IFTYPE_NAN:
2452 default:
2453 return -EOPNOTSUPP;
2454 }
2455
2456 return ieee80211_request_scan(sdata, req);
2457 }
2458
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2459 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2460 {
2461 ieee80211_scan_cancel(wiphy_priv(wiphy));
2462 }
2463
2464 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2465 ieee80211_sched_scan_start(struct wiphy *wiphy,
2466 struct net_device *dev,
2467 struct cfg80211_sched_scan_request *req)
2468 {
2469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2470
2471 if (!sdata->local->ops->sched_scan_start)
2472 return -EOPNOTSUPP;
2473
2474 return ieee80211_request_sched_scan_start(sdata, req);
2475 }
2476
2477 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2478 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2479 u64 reqid)
2480 {
2481 struct ieee80211_local *local = wiphy_priv(wiphy);
2482
2483 if (!local->ops->sched_scan_stop)
2484 return -EOPNOTSUPP;
2485
2486 return ieee80211_request_sched_scan_stop(local);
2487 }
2488
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2489 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2490 struct cfg80211_auth_request *req)
2491 {
2492 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2493 }
2494
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2495 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2496 struct cfg80211_assoc_request *req)
2497 {
2498 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2499 }
2500
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2501 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2502 struct cfg80211_deauth_request *req)
2503 {
2504 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2505 }
2506
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2507 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2508 struct cfg80211_disassoc_request *req)
2509 {
2510 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2511 }
2512
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2513 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2514 struct cfg80211_ibss_params *params)
2515 {
2516 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2517 }
2518
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2519 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2520 {
2521 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2522 }
2523
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2524 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2525 struct ocb_setup *setup)
2526 {
2527 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2528 }
2529
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2530 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2531 {
2532 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2533 }
2534
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2535 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2536 int rate[NUM_NL80211_BANDS])
2537 {
2538 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2539
2540 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2541 sizeof(int) * NUM_NL80211_BANDS);
2542
2543 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2544
2545 return 0;
2546 }
2547
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2548 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2549 {
2550 struct ieee80211_local *local = wiphy_priv(wiphy);
2551 int err;
2552
2553 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2554 ieee80211_check_fast_xmit_all(local);
2555
2556 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2557
2558 if (err) {
2559 ieee80211_check_fast_xmit_all(local);
2560 return err;
2561 }
2562 }
2563
2564 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2565 (changed & WIPHY_PARAM_DYN_ACK)) {
2566 s16 coverage_class;
2567
2568 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2569 wiphy->coverage_class : -1;
2570 err = drv_set_coverage_class(local, coverage_class);
2571
2572 if (err)
2573 return err;
2574 }
2575
2576 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2577 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2578
2579 if (err)
2580 return err;
2581 }
2582
2583 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2584 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2585 return -EINVAL;
2586 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2587 }
2588 if (changed & WIPHY_PARAM_RETRY_LONG) {
2589 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2590 return -EINVAL;
2591 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2592 }
2593 if (changed &
2594 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2595 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2596
2597 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2598 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2599 WIPHY_PARAM_TXQ_QUANTUM))
2600 ieee80211_txq_set_params(local);
2601
2602 return 0;
2603 }
2604
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)2605 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2606 struct wireless_dev *wdev,
2607 enum nl80211_tx_power_setting type, int mbm)
2608 {
2609 struct ieee80211_local *local = wiphy_priv(wiphy);
2610 struct ieee80211_sub_if_data *sdata;
2611 enum nl80211_tx_power_setting txp_type = type;
2612 bool update_txp_type = false;
2613 bool has_monitor = false;
2614
2615 if (wdev) {
2616 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2617
2618 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2619 sdata = rtnl_dereference(local->monitor_sdata);
2620 if (!sdata)
2621 return -EOPNOTSUPP;
2622 }
2623
2624 switch (type) {
2625 case NL80211_TX_POWER_AUTOMATIC:
2626 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2627 txp_type = NL80211_TX_POWER_LIMITED;
2628 break;
2629 case NL80211_TX_POWER_LIMITED:
2630 case NL80211_TX_POWER_FIXED:
2631 if (mbm < 0 || (mbm % 100))
2632 return -EOPNOTSUPP;
2633 sdata->user_power_level = MBM_TO_DBM(mbm);
2634 break;
2635 }
2636
2637 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2638 update_txp_type = true;
2639 sdata->vif.bss_conf.txpower_type = txp_type;
2640 }
2641
2642 ieee80211_recalc_txpower(sdata, update_txp_type);
2643
2644 return 0;
2645 }
2646
2647 switch (type) {
2648 case NL80211_TX_POWER_AUTOMATIC:
2649 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2650 txp_type = NL80211_TX_POWER_LIMITED;
2651 break;
2652 case NL80211_TX_POWER_LIMITED:
2653 case NL80211_TX_POWER_FIXED:
2654 if (mbm < 0 || (mbm % 100))
2655 return -EOPNOTSUPP;
2656 local->user_power_level = MBM_TO_DBM(mbm);
2657 break;
2658 }
2659
2660 mutex_lock(&local->iflist_mtx);
2661 list_for_each_entry(sdata, &local->interfaces, list) {
2662 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2663 has_monitor = true;
2664 continue;
2665 }
2666 sdata->user_power_level = local->user_power_level;
2667 if (txp_type != sdata->vif.bss_conf.txpower_type)
2668 update_txp_type = true;
2669 sdata->vif.bss_conf.txpower_type = txp_type;
2670 }
2671 list_for_each_entry(sdata, &local->interfaces, list) {
2672 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2673 continue;
2674 ieee80211_recalc_txpower(sdata, update_txp_type);
2675 }
2676 mutex_unlock(&local->iflist_mtx);
2677
2678 if (has_monitor) {
2679 sdata = rtnl_dereference(local->monitor_sdata);
2680 if (sdata) {
2681 sdata->user_power_level = local->user_power_level;
2682 if (txp_type != sdata->vif.bss_conf.txpower_type)
2683 update_txp_type = true;
2684 sdata->vif.bss_conf.txpower_type = txp_type;
2685
2686 ieee80211_recalc_txpower(sdata, update_txp_type);
2687 }
2688 }
2689
2690 return 0;
2691 }
2692
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)2693 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2694 struct wireless_dev *wdev,
2695 int *dbm)
2696 {
2697 struct ieee80211_local *local = wiphy_priv(wiphy);
2698 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2699
2700 if (local->ops->get_txpower)
2701 return drv_get_txpower(local, sdata, dbm);
2702
2703 if (!local->use_chanctx)
2704 *dbm = local->hw.conf.power_level;
2705 else
2706 *dbm = sdata->vif.bss_conf.txpower;
2707
2708 return 0;
2709 }
2710
ieee80211_set_wds_peer(struct wiphy * wiphy,struct net_device * dev,const u8 * addr)2711 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2712 const u8 *addr)
2713 {
2714 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2715
2716 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2717
2718 return 0;
2719 }
2720
ieee80211_rfkill_poll(struct wiphy * wiphy)2721 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2722 {
2723 struct ieee80211_local *local = wiphy_priv(wiphy);
2724
2725 drv_rfkill_poll(local);
2726 }
2727
2728 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)2729 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2730 struct wireless_dev *wdev,
2731 void *data, int len)
2732 {
2733 struct ieee80211_local *local = wiphy_priv(wiphy);
2734 struct ieee80211_vif *vif = NULL;
2735
2736 if (!local->ops->testmode_cmd)
2737 return -EOPNOTSUPP;
2738
2739 if (wdev) {
2740 struct ieee80211_sub_if_data *sdata;
2741
2742 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2743 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2744 vif = &sdata->vif;
2745 }
2746
2747 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2748 }
2749
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)2750 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2751 struct sk_buff *skb,
2752 struct netlink_callback *cb,
2753 void *data, int len)
2754 {
2755 struct ieee80211_local *local = wiphy_priv(wiphy);
2756
2757 if (!local->ops->testmode_dump)
2758 return -EOPNOTSUPP;
2759
2760 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2761 }
2762 #endif
2763
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,enum ieee80211_smps_mode smps_mode)2764 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2765 enum ieee80211_smps_mode smps_mode)
2766 {
2767 const u8 *ap;
2768 enum ieee80211_smps_mode old_req;
2769 int err;
2770 struct sta_info *sta;
2771 bool tdls_peer_found = false;
2772
2773 lockdep_assert_held(&sdata->wdev.mtx);
2774
2775 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2776 return -EINVAL;
2777
2778 old_req = sdata->u.mgd.req_smps;
2779 sdata->u.mgd.req_smps = smps_mode;
2780
2781 if (old_req == smps_mode &&
2782 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2783 return 0;
2784
2785 /*
2786 * If not associated, or current association is not an HT
2787 * association, there's no need to do anything, just store
2788 * the new value until we associate.
2789 */
2790 if (!sdata->u.mgd.associated ||
2791 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2792 return 0;
2793
2794 ap = sdata->u.mgd.associated->bssid;
2795
2796 rcu_read_lock();
2797 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2798 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2799 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2800 continue;
2801
2802 tdls_peer_found = true;
2803 break;
2804 }
2805 rcu_read_unlock();
2806
2807 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2808 if (tdls_peer_found || !sdata->u.mgd.powersave)
2809 smps_mode = IEEE80211_SMPS_OFF;
2810 else
2811 smps_mode = IEEE80211_SMPS_DYNAMIC;
2812 }
2813
2814 /* send SM PS frame to AP */
2815 err = ieee80211_send_smps_action(sdata, smps_mode,
2816 ap, ap);
2817 if (err)
2818 sdata->u.mgd.req_smps = old_req;
2819 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2820 ieee80211_teardown_tdls_peers(sdata);
2821
2822 return err;
2823 }
2824
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)2825 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2826 bool enabled, int timeout)
2827 {
2828 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2829 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2830
2831 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2832 return -EOPNOTSUPP;
2833
2834 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2835 return -EOPNOTSUPP;
2836
2837 if (enabled == sdata->u.mgd.powersave &&
2838 timeout == local->dynamic_ps_forced_timeout)
2839 return 0;
2840
2841 sdata->u.mgd.powersave = enabled;
2842 local->dynamic_ps_forced_timeout = timeout;
2843
2844 /* no change, but if automatic follow powersave */
2845 sdata_lock(sdata);
2846 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2847 sdata_unlock(sdata);
2848
2849 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2850 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2851
2852 ieee80211_recalc_ps(local);
2853 ieee80211_recalc_ps_vif(sdata);
2854 ieee80211_check_fast_rx_iface(sdata);
2855
2856 return 0;
2857 }
2858
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)2859 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2860 struct net_device *dev,
2861 s32 rssi_thold, u32 rssi_hyst)
2862 {
2863 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2864 struct ieee80211_vif *vif = &sdata->vif;
2865 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2866
2867 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2868 rssi_hyst == bss_conf->cqm_rssi_hyst)
2869 return 0;
2870
2871 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2872 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2873 return -EOPNOTSUPP;
2874
2875 bss_conf->cqm_rssi_thold = rssi_thold;
2876 bss_conf->cqm_rssi_hyst = rssi_hyst;
2877 bss_conf->cqm_rssi_low = 0;
2878 bss_conf->cqm_rssi_high = 0;
2879 sdata->u.mgd.last_cqm_event_signal = 0;
2880
2881 /* tell the driver upon association, unless already associated */
2882 if (sdata->u.mgd.associated &&
2883 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2884 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2885
2886 return 0;
2887 }
2888
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)2889 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2890 struct net_device *dev,
2891 s32 rssi_low, s32 rssi_high)
2892 {
2893 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2894 struct ieee80211_vif *vif = &sdata->vif;
2895 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2896
2897 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2898 return -EOPNOTSUPP;
2899
2900 bss_conf->cqm_rssi_low = rssi_low;
2901 bss_conf->cqm_rssi_high = rssi_high;
2902 bss_conf->cqm_rssi_thold = 0;
2903 bss_conf->cqm_rssi_hyst = 0;
2904 sdata->u.mgd.last_cqm_event_signal = 0;
2905
2906 /* tell the driver upon association, unless already associated */
2907 if (sdata->u.mgd.associated &&
2908 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2909 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2910
2911 return 0;
2912 }
2913
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,const u8 * addr,const struct cfg80211_bitrate_mask * mask)2914 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2915 struct net_device *dev,
2916 const u8 *addr,
2917 const struct cfg80211_bitrate_mask *mask)
2918 {
2919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2920 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2921 int i, ret;
2922
2923 if (!ieee80211_sdata_running(sdata))
2924 return -ENETDOWN;
2925
2926 /*
2927 * If active validate the setting and reject it if it doesn't leave
2928 * at least one basic rate usable, since we really have to be able
2929 * to send something, and if we're an AP we have to be able to do
2930 * so at a basic rate so that all clients can receive it.
2931 */
2932 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2933 sdata->vif.bss_conf.chandef.chan) {
2934 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2935 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2936
2937 if (!(mask->control[band].legacy & basic_rates))
2938 return -EINVAL;
2939 }
2940
2941 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2942 ret = drv_set_bitrate_mask(local, sdata, mask);
2943 if (ret)
2944 return ret;
2945 }
2946
2947 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2948 struct ieee80211_supported_band *sband = wiphy->bands[i];
2949 int j;
2950
2951 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2952 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2953 sizeof(mask->control[i].ht_mcs));
2954 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2955 mask->control[i].vht_mcs,
2956 sizeof(mask->control[i].vht_mcs));
2957
2958 sdata->rc_has_mcs_mask[i] = false;
2959 sdata->rc_has_vht_mcs_mask[i] = false;
2960 if (!sband)
2961 continue;
2962
2963 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2964 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2965 sdata->rc_has_mcs_mask[i] = true;
2966 break;
2967 }
2968 }
2969
2970 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2971 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2972 sdata->rc_has_vht_mcs_mask[i] = true;
2973 break;
2974 }
2975 }
2976 }
2977
2978 return 0;
2979 }
2980
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)2981 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2982 struct net_device *dev,
2983 struct cfg80211_chan_def *chandef,
2984 u32 cac_time_ms)
2985 {
2986 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2987 struct ieee80211_local *local = sdata->local;
2988 int err;
2989
2990 mutex_lock(&local->mtx);
2991 if (!list_empty(&local->roc_list) || local->scanning) {
2992 err = -EBUSY;
2993 goto out_unlock;
2994 }
2995
2996 /* whatever, but channel contexts should not complain about that one */
2997 sdata->smps_mode = IEEE80211_SMPS_OFF;
2998 sdata->needed_rx_chains = local->rx_chains;
2999
3000 err = ieee80211_vif_use_channel(sdata, chandef,
3001 IEEE80211_CHANCTX_SHARED);
3002 if (err)
3003 goto out_unlock;
3004
3005 ieee80211_queue_delayed_work(&sdata->local->hw,
3006 &sdata->dfs_cac_timer_work,
3007 msecs_to_jiffies(cac_time_ms));
3008
3009 out_unlock:
3010 mutex_unlock(&local->mtx);
3011 return err;
3012 }
3013
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev)3014 static void ieee80211_end_cac(struct wiphy *wiphy,
3015 struct net_device *dev)
3016 {
3017 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3018 struct ieee80211_local *local = sdata->local;
3019
3020 mutex_lock(&local->mtx);
3021 list_for_each_entry(sdata, &local->interfaces, list) {
3022 /* it might be waiting for the local->mtx, but then
3023 * by the time it gets it, sdata->wdev.cac_started
3024 * will no longer be true
3025 */
3026 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3027
3028 if (sdata->wdev.cac_started) {
3029 ieee80211_vif_release_channel(sdata);
3030 sdata->wdev.cac_started = false;
3031 }
3032 }
3033 mutex_unlock(&local->mtx);
3034 }
3035
3036 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3037 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3038 {
3039 struct cfg80211_beacon_data *new_beacon;
3040 u8 *pos;
3041 int len;
3042
3043 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3044 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3045 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3046
3047 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3048 if (!new_beacon)
3049 return NULL;
3050
3051 pos = (u8 *)(new_beacon + 1);
3052 if (beacon->head_len) {
3053 new_beacon->head_len = beacon->head_len;
3054 new_beacon->head = pos;
3055 memcpy(pos, beacon->head, beacon->head_len);
3056 pos += beacon->head_len;
3057 }
3058 if (beacon->tail_len) {
3059 new_beacon->tail_len = beacon->tail_len;
3060 new_beacon->tail = pos;
3061 memcpy(pos, beacon->tail, beacon->tail_len);
3062 pos += beacon->tail_len;
3063 }
3064 if (beacon->beacon_ies_len) {
3065 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3066 new_beacon->beacon_ies = pos;
3067 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3068 pos += beacon->beacon_ies_len;
3069 }
3070 if (beacon->proberesp_ies_len) {
3071 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3072 new_beacon->proberesp_ies = pos;
3073 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3074 pos += beacon->proberesp_ies_len;
3075 }
3076 if (beacon->assocresp_ies_len) {
3077 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3078 new_beacon->assocresp_ies = pos;
3079 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3080 pos += beacon->assocresp_ies_len;
3081 }
3082 if (beacon->probe_resp_len) {
3083 new_beacon->probe_resp_len = beacon->probe_resp_len;
3084 new_beacon->probe_resp = pos;
3085 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3086 pos += beacon->probe_resp_len;
3087 }
3088
3089 /* might copy -1, meaning no changes requested */
3090 new_beacon->ftm_responder = beacon->ftm_responder;
3091 if (beacon->lci) {
3092 new_beacon->lci_len = beacon->lci_len;
3093 new_beacon->lci = pos;
3094 memcpy(pos, beacon->lci, beacon->lci_len);
3095 pos += beacon->lci_len;
3096 }
3097 if (beacon->civicloc) {
3098 new_beacon->civicloc_len = beacon->civicloc_len;
3099 new_beacon->civicloc = pos;
3100 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3101 pos += beacon->civicloc_len;
3102 }
3103
3104 return new_beacon;
3105 }
3106
ieee80211_csa_finish(struct ieee80211_vif * vif)3107 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3108 {
3109 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3110
3111 ieee80211_queue_work(&sdata->local->hw,
3112 &sdata->csa_finalize_work);
3113 }
3114 EXPORT_SYMBOL(ieee80211_csa_finish);
3115
ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u32 * changed)3116 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3117 u32 *changed)
3118 {
3119 int err;
3120
3121 switch (sdata->vif.type) {
3122 case NL80211_IFTYPE_AP:
3123 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3124 NULL);
3125 kfree(sdata->u.ap.next_beacon);
3126 sdata->u.ap.next_beacon = NULL;
3127
3128 if (err < 0)
3129 return err;
3130 *changed |= err;
3131 break;
3132 case NL80211_IFTYPE_ADHOC:
3133 err = ieee80211_ibss_finish_csa(sdata);
3134 if (err < 0)
3135 return err;
3136 *changed |= err;
3137 break;
3138 #ifdef CONFIG_MAC80211_MESH
3139 case NL80211_IFTYPE_MESH_POINT:
3140 err = ieee80211_mesh_finish_csa(sdata);
3141 if (err < 0)
3142 return err;
3143 *changed |= err;
3144 break;
3145 #endif
3146 default:
3147 WARN_ON(1);
3148 return -EINVAL;
3149 }
3150
3151 return 0;
3152 }
3153
__ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3154 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3155 {
3156 struct ieee80211_local *local = sdata->local;
3157 u32 changed = 0;
3158 int err;
3159
3160 sdata_assert_lock(sdata);
3161 lockdep_assert_held(&local->mtx);
3162 lockdep_assert_held(&local->chanctx_mtx);
3163
3164 /*
3165 * using reservation isn't immediate as it may be deferred until later
3166 * with multi-vif. once reservation is complete it will re-schedule the
3167 * work with no reserved_chanctx so verify chandef to check if it
3168 * completed successfully
3169 */
3170
3171 if (sdata->reserved_chanctx) {
3172 /*
3173 * with multi-vif csa driver may call ieee80211_csa_finish()
3174 * many times while waiting for other interfaces to use their
3175 * reservations
3176 */
3177 if (sdata->reserved_ready)
3178 return 0;
3179
3180 return ieee80211_vif_use_reserved_context(sdata);
3181 }
3182
3183 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3184 &sdata->csa_chandef))
3185 return -EINVAL;
3186
3187 sdata->vif.csa_active = false;
3188
3189 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3190 if (err)
3191 return err;
3192
3193 ieee80211_bss_info_change_notify(sdata, changed);
3194
3195 if (sdata->csa_block_tx) {
3196 ieee80211_wake_vif_queues(local, sdata,
3197 IEEE80211_QUEUE_STOP_REASON_CSA);
3198 sdata->csa_block_tx = false;
3199 }
3200
3201 err = drv_post_channel_switch(sdata);
3202 if (err)
3203 return err;
3204
3205 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3206
3207 return 0;
3208 }
3209
ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3210 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3211 {
3212 if (__ieee80211_csa_finalize(sdata)) {
3213 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3214 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3215 GFP_KERNEL);
3216 }
3217 }
3218
ieee80211_csa_finalize_work(struct work_struct * work)3219 void ieee80211_csa_finalize_work(struct work_struct *work)
3220 {
3221 struct ieee80211_sub_if_data *sdata =
3222 container_of(work, struct ieee80211_sub_if_data,
3223 csa_finalize_work);
3224 struct ieee80211_local *local = sdata->local;
3225
3226 sdata_lock(sdata);
3227 mutex_lock(&local->mtx);
3228 mutex_lock(&local->chanctx_mtx);
3229
3230 /* AP might have been stopped while waiting for the lock. */
3231 if (!sdata->vif.csa_active)
3232 goto unlock;
3233
3234 if (!ieee80211_sdata_running(sdata))
3235 goto unlock;
3236
3237 ieee80211_csa_finalize(sdata);
3238
3239 unlock:
3240 mutex_unlock(&local->chanctx_mtx);
3241 mutex_unlock(&local->mtx);
3242 sdata_unlock(sdata);
3243 }
3244
ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u32 * changed)3245 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3246 struct cfg80211_csa_settings *params,
3247 u32 *changed)
3248 {
3249 struct ieee80211_csa_settings csa = {};
3250 int err;
3251
3252 switch (sdata->vif.type) {
3253 case NL80211_IFTYPE_AP:
3254 sdata->u.ap.next_beacon =
3255 cfg80211_beacon_dup(¶ms->beacon_after);
3256 if (!sdata->u.ap.next_beacon)
3257 return -ENOMEM;
3258
3259 /*
3260 * With a count of 0, we don't have to wait for any
3261 * TBTT before switching, so complete the CSA
3262 * immediately. In theory, with a count == 1 we
3263 * should delay the switch until just before the next
3264 * TBTT, but that would complicate things so we switch
3265 * immediately too. If we would delay the switch
3266 * until the next TBTT, we would have to set the probe
3267 * response here.
3268 *
3269 * TODO: A channel switch with count <= 1 without
3270 * sending a CSA action frame is kind of useless,
3271 * because the clients won't know we're changing
3272 * channels. The action frame must be implemented
3273 * either here or in the userspace.
3274 */
3275 if (params->count <= 1)
3276 break;
3277
3278 if ((params->n_counter_offsets_beacon >
3279 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3280 (params->n_counter_offsets_presp >
3281 IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3282 return -EINVAL;
3283
3284 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3285 csa.counter_offsets_presp = params->counter_offsets_presp;
3286 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3287 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3288 csa.count = params->count;
3289
3290 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa);
3291 if (err < 0) {
3292 kfree(sdata->u.ap.next_beacon);
3293 return err;
3294 }
3295 *changed |= err;
3296
3297 break;
3298 case NL80211_IFTYPE_ADHOC:
3299 if (!sdata->vif.bss_conf.ibss_joined)
3300 return -EINVAL;
3301
3302 if (params->chandef.width != sdata->u.ibss.chandef.width)
3303 return -EINVAL;
3304
3305 switch (params->chandef.width) {
3306 case NL80211_CHAN_WIDTH_40:
3307 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3308 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3309 return -EINVAL;
3310 case NL80211_CHAN_WIDTH_5:
3311 case NL80211_CHAN_WIDTH_10:
3312 case NL80211_CHAN_WIDTH_20_NOHT:
3313 case NL80211_CHAN_WIDTH_20:
3314 break;
3315 default:
3316 return -EINVAL;
3317 }
3318
3319 /* changes into another band are not supported */
3320 if (sdata->u.ibss.chandef.chan->band !=
3321 params->chandef.chan->band)
3322 return -EINVAL;
3323
3324 /* see comments in the NL80211_IFTYPE_AP block */
3325 if (params->count > 1) {
3326 err = ieee80211_ibss_csa_beacon(sdata, params);
3327 if (err < 0)
3328 return err;
3329 *changed |= err;
3330 }
3331
3332 ieee80211_send_action_csa(sdata, params);
3333
3334 break;
3335 #ifdef CONFIG_MAC80211_MESH
3336 case NL80211_IFTYPE_MESH_POINT: {
3337 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3338
3339 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3340 return -EINVAL;
3341
3342 /* changes into another band are not supported */
3343 if (sdata->vif.bss_conf.chandef.chan->band !=
3344 params->chandef.chan->band)
3345 return -EINVAL;
3346
3347 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3348 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3349 if (!ifmsh->pre_value)
3350 ifmsh->pre_value = 1;
3351 else
3352 ifmsh->pre_value++;
3353 }
3354
3355 /* see comments in the NL80211_IFTYPE_AP block */
3356 if (params->count > 1) {
3357 err = ieee80211_mesh_csa_beacon(sdata, params);
3358 if (err < 0) {
3359 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3360 return err;
3361 }
3362 *changed |= err;
3363 }
3364
3365 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3366 ieee80211_send_action_csa(sdata, params);
3367
3368 break;
3369 }
3370 #endif
3371 default:
3372 return -EOPNOTSUPP;
3373 }
3374
3375 return 0;
3376 }
3377
3378 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3379 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3380 struct cfg80211_csa_settings *params)
3381 {
3382 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3383 struct ieee80211_local *local = sdata->local;
3384 struct ieee80211_channel_switch ch_switch;
3385 struct ieee80211_chanctx_conf *conf;
3386 struct ieee80211_chanctx *chanctx;
3387 u32 changed = 0;
3388 int err;
3389
3390 sdata_assert_lock(sdata);
3391 lockdep_assert_held(&local->mtx);
3392
3393 if (!list_empty(&local->roc_list) || local->scanning)
3394 return -EBUSY;
3395
3396 if (sdata->wdev.cac_started)
3397 return -EBUSY;
3398
3399 if (cfg80211_chandef_identical(¶ms->chandef,
3400 &sdata->vif.bss_conf.chandef))
3401 return -EINVAL;
3402
3403 /* don't allow another channel switch if one is already active. */
3404 if (sdata->vif.csa_active)
3405 return -EBUSY;
3406
3407 mutex_lock(&local->chanctx_mtx);
3408 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3409 lockdep_is_held(&local->chanctx_mtx));
3410 if (!conf) {
3411 err = -EBUSY;
3412 goto out;
3413 }
3414
3415 if (params->chandef.chan->freq_offset) {
3416 /* this may work, but is untested */
3417 err = -EOPNOTSUPP;
3418 goto out;
3419 }
3420
3421 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3422
3423 ch_switch.timestamp = 0;
3424 ch_switch.device_timestamp = 0;
3425 ch_switch.block_tx = params->block_tx;
3426 ch_switch.chandef = params->chandef;
3427 ch_switch.count = params->count;
3428
3429 err = drv_pre_channel_switch(sdata, &ch_switch);
3430 if (err)
3431 goto out;
3432
3433 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef,
3434 chanctx->mode,
3435 params->radar_required);
3436 if (err)
3437 goto out;
3438
3439 /* if reservation is invalid then this will fail */
3440 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3441 if (err) {
3442 ieee80211_vif_unreserve_chanctx(sdata);
3443 goto out;
3444 }
3445
3446 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3447 if (err) {
3448 ieee80211_vif_unreserve_chanctx(sdata);
3449 goto out;
3450 }
3451
3452 sdata->csa_chandef = params->chandef;
3453 sdata->csa_block_tx = params->block_tx;
3454 sdata->vif.csa_active = true;
3455
3456 if (sdata->csa_block_tx)
3457 ieee80211_stop_vif_queues(local, sdata,
3458 IEEE80211_QUEUE_STOP_REASON_CSA);
3459
3460 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3461 params->count);
3462
3463 if (changed) {
3464 ieee80211_bss_info_change_notify(sdata, changed);
3465 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3466 } else {
3467 /* if the beacon didn't change, we can finalize immediately */
3468 ieee80211_csa_finalize(sdata);
3469 }
3470
3471 out:
3472 mutex_unlock(&local->chanctx_mtx);
3473 return err;
3474 }
3475
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3476 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3477 struct cfg80211_csa_settings *params)
3478 {
3479 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3480 struct ieee80211_local *local = sdata->local;
3481 int err;
3482
3483 mutex_lock(&local->mtx);
3484 err = __ieee80211_channel_switch(wiphy, dev, params);
3485 mutex_unlock(&local->mtx);
3486
3487 return err;
3488 }
3489
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)3490 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3491 {
3492 lockdep_assert_held(&local->mtx);
3493
3494 local->roc_cookie_counter++;
3495
3496 /* wow, you wrapped 64 bits ... more likely a bug */
3497 if (WARN_ON(local->roc_cookie_counter == 0))
3498 local->roc_cookie_counter++;
3499
3500 return local->roc_cookie_counter;
3501 }
3502
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)3503 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3504 u64 *cookie, gfp_t gfp)
3505 {
3506 unsigned long spin_flags;
3507 struct sk_buff *ack_skb;
3508 int id;
3509
3510 ack_skb = skb_copy(skb, gfp);
3511 if (!ack_skb)
3512 return -ENOMEM;
3513
3514 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3515 id = idr_alloc(&local->ack_status_frames, ack_skb,
3516 1, 0x2000, GFP_ATOMIC);
3517 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3518
3519 if (id < 0) {
3520 kfree_skb(ack_skb);
3521 return -ENOMEM;
3522 }
3523
3524 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3525
3526 *cookie = ieee80211_mgmt_tx_cookie(local);
3527 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3528
3529 return 0;
3530 }
3531
3532 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)3533 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3534 struct wireless_dev *wdev,
3535 struct mgmt_frame_regs *upd)
3536 {
3537 struct ieee80211_local *local = wiphy_priv(wiphy);
3538 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3539 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3540 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3541 bool global_change, intf_change;
3542
3543 global_change =
3544 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3545 (local->rx_mcast_action_reg !=
3546 !!(upd->global_mcast_stypes & action_mask));
3547 local->probe_req_reg = upd->global_stypes & preq_mask;
3548 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3549
3550 intf_change = (sdata->vif.probe_req_reg !=
3551 !!(upd->interface_stypes & preq_mask)) ||
3552 (sdata->vif.rx_mcast_action_reg !=
3553 !!(upd->interface_mcast_stypes & action_mask));
3554 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3555 sdata->vif.rx_mcast_action_reg =
3556 upd->interface_mcast_stypes & action_mask;
3557
3558 if (!local->open_count)
3559 return;
3560
3561 if (intf_change && ieee80211_sdata_running(sdata))
3562 drv_config_iface_filter(local, sdata,
3563 sdata->vif.probe_req_reg ?
3564 FIF_PROBE_REQ : 0,
3565 FIF_PROBE_REQ);
3566
3567 if (global_change)
3568 ieee80211_configure_filter(local);
3569 }
3570
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)3571 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3572 {
3573 struct ieee80211_local *local = wiphy_priv(wiphy);
3574
3575 if (local->started)
3576 return -EOPNOTSUPP;
3577
3578 return drv_set_antenna(local, tx_ant, rx_ant);
3579 }
3580
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)3581 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3582 {
3583 struct ieee80211_local *local = wiphy_priv(wiphy);
3584
3585 return drv_get_antenna(local, tx_ant, rx_ant);
3586 }
3587
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)3588 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3589 struct net_device *dev,
3590 struct cfg80211_gtk_rekey_data *data)
3591 {
3592 struct ieee80211_local *local = wiphy_priv(wiphy);
3593 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3594
3595 if (!local->ops->set_rekey_data)
3596 return -EOPNOTSUPP;
3597
3598 drv_set_rekey_data(local, sdata, data);
3599
3600 return 0;
3601 }
3602
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)3603 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3604 const u8 *peer, u64 *cookie)
3605 {
3606 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3607 struct ieee80211_local *local = sdata->local;
3608 struct ieee80211_qos_hdr *nullfunc;
3609 struct sk_buff *skb;
3610 int size = sizeof(*nullfunc);
3611 __le16 fc;
3612 bool qos;
3613 struct ieee80211_tx_info *info;
3614 struct sta_info *sta;
3615 struct ieee80211_chanctx_conf *chanctx_conf;
3616 enum nl80211_band band;
3617 int ret;
3618
3619 /* the lock is needed to assign the cookie later */
3620 mutex_lock(&local->mtx);
3621
3622 rcu_read_lock();
3623 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3624 if (WARN_ON(!chanctx_conf)) {
3625 ret = -EINVAL;
3626 goto unlock;
3627 }
3628 band = chanctx_conf->def.chan->band;
3629 sta = sta_info_get_bss(sdata, peer);
3630 if (sta) {
3631 qos = sta->sta.wme;
3632 } else {
3633 ret = -ENOLINK;
3634 goto unlock;
3635 }
3636
3637 if (qos) {
3638 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3639 IEEE80211_STYPE_QOS_NULLFUNC |
3640 IEEE80211_FCTL_FROMDS);
3641 } else {
3642 size -= 2;
3643 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3644 IEEE80211_STYPE_NULLFUNC |
3645 IEEE80211_FCTL_FROMDS);
3646 }
3647
3648 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3649 if (!skb) {
3650 ret = -ENOMEM;
3651 goto unlock;
3652 }
3653
3654 skb->dev = dev;
3655
3656 skb_reserve(skb, local->hw.extra_tx_headroom);
3657
3658 nullfunc = skb_put(skb, size);
3659 nullfunc->frame_control = fc;
3660 nullfunc->duration_id = 0;
3661 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3662 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3663 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3664 nullfunc->seq_ctrl = 0;
3665
3666 info = IEEE80211_SKB_CB(skb);
3667
3668 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3669 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3670 info->band = band;
3671
3672 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3673 skb->priority = 7;
3674 if (qos)
3675 nullfunc->qos_ctrl = cpu_to_le16(7);
3676
3677 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3678 if (ret) {
3679 kfree_skb(skb);
3680 goto unlock;
3681 }
3682
3683 local_bh_disable();
3684 ieee80211_xmit(sdata, sta, skb);
3685 local_bh_enable();
3686
3687 ret = 0;
3688 unlock:
3689 rcu_read_unlock();
3690 mutex_unlock(&local->mtx);
3691
3692 return ret;
3693 }
3694
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_chan_def * chandef)3695 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3696 struct wireless_dev *wdev,
3697 struct cfg80211_chan_def *chandef)
3698 {
3699 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3700 struct ieee80211_local *local = wiphy_priv(wiphy);
3701 struct ieee80211_chanctx_conf *chanctx_conf;
3702 int ret = -ENODATA;
3703
3704 rcu_read_lock();
3705 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3706 if (chanctx_conf) {
3707 *chandef = sdata->vif.bss_conf.chandef;
3708 ret = 0;
3709 } else if (local->open_count > 0 &&
3710 local->open_count == local->monitors &&
3711 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3712 if (local->use_chanctx)
3713 *chandef = local->monitor_chandef;
3714 else
3715 *chandef = local->_oper_chandef;
3716 ret = 0;
3717 }
3718 rcu_read_unlock();
3719
3720 return ret;
3721 }
3722
3723 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)3724 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3725 {
3726 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3727 }
3728 #endif
3729
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)3730 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3731 struct net_device *dev,
3732 struct cfg80211_qos_map *qos_map)
3733 {
3734 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3735 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3736
3737 if (qos_map) {
3738 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3739 if (!new_qos_map)
3740 return -ENOMEM;
3741 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3742 } else {
3743 /* A NULL qos_map was passed to disable QoS mapping */
3744 new_qos_map = NULL;
3745 }
3746
3747 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3748 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3749 if (old_qos_map)
3750 kfree_rcu(old_qos_map, rcu_head);
3751
3752 return 0;
3753 }
3754
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef)3755 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3756 struct net_device *dev,
3757 struct cfg80211_chan_def *chandef)
3758 {
3759 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3760 int ret;
3761 u32 changed = 0;
3762
3763 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3764 if (ret == 0)
3765 ieee80211_bss_info_change_notify(sdata, changed);
3766
3767 return ret;
3768 }
3769
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)3770 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3771 u8 tsid, const u8 *peer, u8 up,
3772 u16 admitted_time)
3773 {
3774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3775 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3776 int ac = ieee802_1d_to_ac[up];
3777
3778 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3779 return -EOPNOTSUPP;
3780
3781 if (!(sdata->wmm_acm & BIT(up)))
3782 return -EINVAL;
3783
3784 if (ifmgd->tx_tspec[ac].admitted_time)
3785 return -EBUSY;
3786
3787 if (admitted_time) {
3788 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3789 ifmgd->tx_tspec[ac].tsid = tsid;
3790 ifmgd->tx_tspec[ac].up = up;
3791 }
3792
3793 return 0;
3794 }
3795
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)3796 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3797 u8 tsid, const u8 *peer)
3798 {
3799 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3800 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3801 struct ieee80211_local *local = wiphy_priv(wiphy);
3802 int ac;
3803
3804 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3805 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3806
3807 /* skip unused entries */
3808 if (!tx_tspec->admitted_time)
3809 continue;
3810
3811 if (tx_tspec->tsid != tsid)
3812 continue;
3813
3814 /* due to this new packets will be reassigned to non-ACM ACs */
3815 tx_tspec->up = -1;
3816
3817 /* Make sure that all packets have been sent to avoid to
3818 * restore the QoS params on packets that are still on the
3819 * queues.
3820 */
3821 synchronize_net();
3822 ieee80211_flush_queues(local, sdata, false);
3823
3824 /* restore the normal QoS parameters
3825 * (unconditionally to avoid races)
3826 */
3827 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3828 tx_tspec->downgraded = false;
3829 ieee80211_sta_handle_tspec_ac_params(sdata);
3830
3831 /* finally clear all the data */
3832 memset(tx_tspec, 0, sizeof(*tx_tspec));
3833
3834 return 0;
3835 }
3836
3837 return -ENOENT;
3838 }
3839
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)3840 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3841 u8 inst_id,
3842 enum nl80211_nan_func_term_reason reason,
3843 gfp_t gfp)
3844 {
3845 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3846 struct cfg80211_nan_func *func;
3847 u64 cookie;
3848
3849 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3850 return;
3851
3852 spin_lock_bh(&sdata->u.nan.func_lock);
3853
3854 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3855 if (WARN_ON(!func)) {
3856 spin_unlock_bh(&sdata->u.nan.func_lock);
3857 return;
3858 }
3859
3860 cookie = func->cookie;
3861 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3862
3863 spin_unlock_bh(&sdata->u.nan.func_lock);
3864
3865 cfg80211_free_nan_func(func);
3866
3867 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3868 reason, cookie, gfp);
3869 }
3870 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3871
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)3872 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3873 struct cfg80211_nan_match_params *match,
3874 gfp_t gfp)
3875 {
3876 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3877 struct cfg80211_nan_func *func;
3878
3879 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3880 return;
3881
3882 spin_lock_bh(&sdata->u.nan.func_lock);
3883
3884 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3885 if (WARN_ON(!func)) {
3886 spin_unlock_bh(&sdata->u.nan.func_lock);
3887 return;
3888 }
3889 match->cookie = func->cookie;
3890
3891 spin_unlock_bh(&sdata->u.nan.func_lock);
3892
3893 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3894 }
3895 EXPORT_SYMBOL(ieee80211_nan_func_match);
3896
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)3897 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3898 struct net_device *dev,
3899 const bool enabled)
3900 {
3901 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3902
3903 sdata->u.ap.multicast_to_unicast = enabled;
3904
3905 return 0;
3906 }
3907
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)3908 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3909 struct txq_info *txqi)
3910 {
3911 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3912 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3913 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3914 }
3915
3916 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3917 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3918 txqstats->backlog_packets = txqi->tin.backlog_packets;
3919 }
3920
3921 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3922 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3923 txqstats->flows = txqi->tin.flows;
3924 }
3925
3926 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3927 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3928 txqstats->drops = txqi->cstats.drop_count;
3929 }
3930
3931 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3932 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3933 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3934 }
3935
3936 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3937 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3938 txqstats->overlimit = txqi->tin.overlimit;
3939 }
3940
3941 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3942 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3943 txqstats->collisions = txqi->tin.collisions;
3944 }
3945
3946 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3947 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3948 txqstats->tx_bytes = txqi->tin.tx_bytes;
3949 }
3950
3951 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3952 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3953 txqstats->tx_packets = txqi->tin.tx_packets;
3954 }
3955 }
3956
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)3957 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3958 struct wireless_dev *wdev,
3959 struct cfg80211_txq_stats *txqstats)
3960 {
3961 struct ieee80211_local *local = wiphy_priv(wiphy);
3962 struct ieee80211_sub_if_data *sdata;
3963 int ret = 0;
3964
3965 if (!local->ops->wake_tx_queue)
3966 return 1;
3967
3968 spin_lock_bh(&local->fq.lock);
3969 rcu_read_lock();
3970
3971 if (wdev) {
3972 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3973 if (!sdata->vif.txq) {
3974 ret = 1;
3975 goto out;
3976 }
3977 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3978 } else {
3979 /* phy stats */
3980 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3981 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3982 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3983 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3984 BIT(NL80211_TXQ_STATS_COLLISIONS) |
3985 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3986 txqstats->backlog_packets = local->fq.backlog;
3987 txqstats->backlog_bytes = local->fq.memory_usage;
3988 txqstats->overlimit = local->fq.overlimit;
3989 txqstats->overmemory = local->fq.overmemory;
3990 txqstats->collisions = local->fq.collisions;
3991 txqstats->max_flows = local->fq.flows_cnt;
3992 }
3993
3994 out:
3995 rcu_read_unlock();
3996 spin_unlock_bh(&local->fq.lock);
3997
3998 return ret;
3999 }
4000
4001 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4002 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4003 struct net_device *dev,
4004 struct cfg80211_ftm_responder_stats *ftm_stats)
4005 {
4006 struct ieee80211_local *local = wiphy_priv(wiphy);
4007 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4008
4009 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4010 }
4011
4012 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4013 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4014 struct cfg80211_pmsr_request *request)
4015 {
4016 struct ieee80211_local *local = wiphy_priv(wiphy);
4017 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4018
4019 return drv_start_pmsr(local, sdata, request);
4020 }
4021
4022 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4023 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4024 struct cfg80211_pmsr_request *request)
4025 {
4026 struct ieee80211_local *local = wiphy_priv(wiphy);
4027 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4028
4029 return drv_abort_pmsr(local, sdata, request);
4030 }
4031
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4032 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4033 struct net_device *dev,
4034 struct cfg80211_tid_config *tid_conf)
4035 {
4036 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4037 struct sta_info *sta;
4038 int ret;
4039
4040 if (!sdata->local->ops->set_tid_config)
4041 return -EOPNOTSUPP;
4042
4043 if (!tid_conf->peer)
4044 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4045
4046 mutex_lock(&sdata->local->sta_mtx);
4047 sta = sta_info_get_bss(sdata, tid_conf->peer);
4048 if (!sta) {
4049 mutex_unlock(&sdata->local->sta_mtx);
4050 return -ENOENT;
4051 }
4052
4053 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4054 mutex_unlock(&sdata->local->sta_mtx);
4055
4056 return ret;
4057 }
4058
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4059 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4060 struct net_device *dev,
4061 const u8 *peer, u8 tids)
4062 {
4063 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4064 struct sta_info *sta;
4065 int ret;
4066
4067 if (!sdata->local->ops->reset_tid_config)
4068 return -EOPNOTSUPP;
4069
4070 if (!peer)
4071 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4072
4073 mutex_lock(&sdata->local->sta_mtx);
4074 sta = sta_info_get_bss(sdata, peer);
4075 if (!sta) {
4076 mutex_unlock(&sdata->local->sta_mtx);
4077 return -ENOENT;
4078 }
4079
4080 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4081 mutex_unlock(&sdata->local->sta_mtx);
4082
4083 return ret;
4084 }
4085
4086 const struct cfg80211_ops mac80211_config_ops = {
4087 .add_virtual_intf = ieee80211_add_iface,
4088 .del_virtual_intf = ieee80211_del_iface,
4089 .change_virtual_intf = ieee80211_change_iface,
4090 .start_p2p_device = ieee80211_start_p2p_device,
4091 .stop_p2p_device = ieee80211_stop_p2p_device,
4092 .add_key = ieee80211_add_key,
4093 .del_key = ieee80211_del_key,
4094 .get_key = ieee80211_get_key,
4095 .set_default_key = ieee80211_config_default_key,
4096 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4097 .set_default_beacon_key = ieee80211_config_default_beacon_key,
4098 .start_ap = ieee80211_start_ap,
4099 .change_beacon = ieee80211_change_beacon,
4100 .stop_ap = ieee80211_stop_ap,
4101 .add_station = ieee80211_add_station,
4102 .del_station = ieee80211_del_station,
4103 .change_station = ieee80211_change_station,
4104 .get_station = ieee80211_get_station,
4105 .dump_station = ieee80211_dump_station,
4106 .dump_survey = ieee80211_dump_survey,
4107 #ifdef CONFIG_MAC80211_MESH
4108 .add_mpath = ieee80211_add_mpath,
4109 .del_mpath = ieee80211_del_mpath,
4110 .change_mpath = ieee80211_change_mpath,
4111 .get_mpath = ieee80211_get_mpath,
4112 .dump_mpath = ieee80211_dump_mpath,
4113 .get_mpp = ieee80211_get_mpp,
4114 .dump_mpp = ieee80211_dump_mpp,
4115 .update_mesh_config = ieee80211_update_mesh_config,
4116 .get_mesh_config = ieee80211_get_mesh_config,
4117 .join_mesh = ieee80211_join_mesh,
4118 .leave_mesh = ieee80211_leave_mesh,
4119 #endif
4120 .join_ocb = ieee80211_join_ocb,
4121 .leave_ocb = ieee80211_leave_ocb,
4122 .change_bss = ieee80211_change_bss,
4123 .set_txq_params = ieee80211_set_txq_params,
4124 .set_monitor_channel = ieee80211_set_monitor_channel,
4125 .suspend = ieee80211_suspend,
4126 .resume = ieee80211_resume,
4127 .scan = ieee80211_scan,
4128 .abort_scan = ieee80211_abort_scan,
4129 .sched_scan_start = ieee80211_sched_scan_start,
4130 .sched_scan_stop = ieee80211_sched_scan_stop,
4131 .auth = ieee80211_auth,
4132 .assoc = ieee80211_assoc,
4133 .deauth = ieee80211_deauth,
4134 .disassoc = ieee80211_disassoc,
4135 .join_ibss = ieee80211_join_ibss,
4136 .leave_ibss = ieee80211_leave_ibss,
4137 .set_mcast_rate = ieee80211_set_mcast_rate,
4138 .set_wiphy_params = ieee80211_set_wiphy_params,
4139 .set_tx_power = ieee80211_set_tx_power,
4140 .get_tx_power = ieee80211_get_tx_power,
4141 .set_wds_peer = ieee80211_set_wds_peer,
4142 .rfkill_poll = ieee80211_rfkill_poll,
4143 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4144 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4145 .set_power_mgmt = ieee80211_set_power_mgmt,
4146 .set_bitrate_mask = ieee80211_set_bitrate_mask,
4147 .remain_on_channel = ieee80211_remain_on_channel,
4148 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4149 .mgmt_tx = ieee80211_mgmt_tx,
4150 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4151 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4152 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4153 .update_mgmt_frame_registrations =
4154 ieee80211_update_mgmt_frame_registrations,
4155 .set_antenna = ieee80211_set_antenna,
4156 .get_antenna = ieee80211_get_antenna,
4157 .set_rekey_data = ieee80211_set_rekey_data,
4158 .tdls_oper = ieee80211_tdls_oper,
4159 .tdls_mgmt = ieee80211_tdls_mgmt,
4160 .tdls_channel_switch = ieee80211_tdls_channel_switch,
4161 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4162 .probe_client = ieee80211_probe_client,
4163 .set_noack_map = ieee80211_set_noack_map,
4164 #ifdef CONFIG_PM
4165 .set_wakeup = ieee80211_set_wakeup,
4166 #endif
4167 .get_channel = ieee80211_cfg_get_channel,
4168 .start_radar_detection = ieee80211_start_radar_detection,
4169 .end_cac = ieee80211_end_cac,
4170 .channel_switch = ieee80211_channel_switch,
4171 .set_qos_map = ieee80211_set_qos_map,
4172 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4173 .add_tx_ts = ieee80211_add_tx_ts,
4174 .del_tx_ts = ieee80211_del_tx_ts,
4175 .start_nan = ieee80211_start_nan,
4176 .stop_nan = ieee80211_stop_nan,
4177 .nan_change_conf = ieee80211_nan_change_conf,
4178 .add_nan_func = ieee80211_add_nan_func,
4179 .del_nan_func = ieee80211_del_nan_func,
4180 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4181 .tx_control_port = ieee80211_tx_control_port,
4182 .get_txq_stats = ieee80211_get_txq_stats,
4183 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4184 .start_pmsr = ieee80211_start_pmsr,
4185 .abort_pmsr = ieee80211_abort_pmsr,
4186 .probe_mesh_link = ieee80211_probe_mesh_link,
4187 .set_tid_config = ieee80211_set_tid_config,
4188 .reset_tid_config = ieee80211_reset_tid_config,
4189 };
4190
