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 struct ieee80211_local *local = sdata->local;
156 struct sta_info *sta;
157 int ret;
158
159 ret = ieee80211_if_change_type(sdata, type);
160 if (ret)
161 return ret;
162
163 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
164 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
165 ieee80211_check_fast_rx_iface(sdata);
166 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
167 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
168
169 if (params->use_4addr == ifmgd->use_4addr)
170 return 0;
171
172 sdata->u.mgd.use_4addr = params->use_4addr;
173 if (!ifmgd->associated)
174 return 0;
175
176 mutex_lock(&local->sta_mtx);
177 sta = sta_info_get(sdata, ifmgd->bssid);
178 if (sta)
179 drv_sta_set_4addr(local, sdata, &sta->sta,
180 params->use_4addr);
181 mutex_unlock(&local->sta_mtx);
182
183 if (params->use_4addr)
184 ieee80211_send_4addr_nullfunc(local, sdata);
185 }
186
187 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
188 ret = ieee80211_set_mon_options(sdata, params);
189 if (ret)
190 return ret;
191 }
192
193 return 0;
194 }
195
ieee80211_start_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)196 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
197 struct wireless_dev *wdev)
198 {
199 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
200 int ret;
201
202 mutex_lock(&sdata->local->chanctx_mtx);
203 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
204 mutex_unlock(&sdata->local->chanctx_mtx);
205 if (ret < 0)
206 return ret;
207
208 return ieee80211_do_open(wdev, true);
209 }
210
ieee80211_stop_p2p_device(struct wiphy * wiphy,struct wireless_dev * wdev)211 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
212 struct wireless_dev *wdev)
213 {
214 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
215 }
216
ieee80211_start_nan(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf)217 static int ieee80211_start_nan(struct wiphy *wiphy,
218 struct wireless_dev *wdev,
219 struct cfg80211_nan_conf *conf)
220 {
221 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
222 int ret;
223
224 mutex_lock(&sdata->local->chanctx_mtx);
225 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
226 mutex_unlock(&sdata->local->chanctx_mtx);
227 if (ret < 0)
228 return ret;
229
230 ret = ieee80211_do_open(wdev, true);
231 if (ret)
232 return ret;
233
234 ret = drv_start_nan(sdata->local, sdata, conf);
235 if (ret)
236 ieee80211_sdata_stop(sdata);
237
238 sdata->u.nan.conf = *conf;
239
240 return ret;
241 }
242
ieee80211_stop_nan(struct wiphy * wiphy,struct wireless_dev * wdev)243 static void ieee80211_stop_nan(struct wiphy *wiphy,
244 struct wireless_dev *wdev)
245 {
246 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
247
248 drv_stop_nan(sdata->local, sdata);
249 ieee80211_sdata_stop(sdata);
250 }
251
ieee80211_nan_change_conf(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_conf * conf,u32 changes)252 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
253 struct wireless_dev *wdev,
254 struct cfg80211_nan_conf *conf,
255 u32 changes)
256 {
257 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
258 struct cfg80211_nan_conf new_conf;
259 int ret = 0;
260
261 if (sdata->vif.type != NL80211_IFTYPE_NAN)
262 return -EOPNOTSUPP;
263
264 if (!ieee80211_sdata_running(sdata))
265 return -ENETDOWN;
266
267 new_conf = sdata->u.nan.conf;
268
269 if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
270 new_conf.master_pref = conf->master_pref;
271
272 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
273 new_conf.bands = conf->bands;
274
275 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
276 if (!ret)
277 sdata->u.nan.conf = new_conf;
278
279 return ret;
280 }
281
ieee80211_add_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_nan_func * nan_func)282 static int ieee80211_add_nan_func(struct wiphy *wiphy,
283 struct wireless_dev *wdev,
284 struct cfg80211_nan_func *nan_func)
285 {
286 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
287 int ret;
288
289 if (sdata->vif.type != NL80211_IFTYPE_NAN)
290 return -EOPNOTSUPP;
291
292 if (!ieee80211_sdata_running(sdata))
293 return -ENETDOWN;
294
295 spin_lock_bh(&sdata->u.nan.func_lock);
296
297 ret = idr_alloc(&sdata->u.nan.function_inst_ids,
298 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
299 GFP_ATOMIC);
300 spin_unlock_bh(&sdata->u.nan.func_lock);
301
302 if (ret < 0)
303 return ret;
304
305 nan_func->instance_id = ret;
306
307 WARN_ON(nan_func->instance_id == 0);
308
309 ret = drv_add_nan_func(sdata->local, sdata, nan_func);
310 if (ret) {
311 spin_lock_bh(&sdata->u.nan.func_lock);
312 idr_remove(&sdata->u.nan.function_inst_ids,
313 nan_func->instance_id);
314 spin_unlock_bh(&sdata->u.nan.func_lock);
315 }
316
317 return ret;
318 }
319
320 static struct cfg80211_nan_func *
ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data * sdata,u64 cookie)321 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
322 u64 cookie)
323 {
324 struct cfg80211_nan_func *func;
325 int id;
326
327 lockdep_assert_held(&sdata->u.nan.func_lock);
328
329 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
330 if (func->cookie == cookie)
331 return func;
332 }
333
334 return NULL;
335 }
336
ieee80211_del_nan_func(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)337 static void ieee80211_del_nan_func(struct wiphy *wiphy,
338 struct wireless_dev *wdev, u64 cookie)
339 {
340 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
341 struct cfg80211_nan_func *func;
342 u8 instance_id = 0;
343
344 if (sdata->vif.type != NL80211_IFTYPE_NAN ||
345 !ieee80211_sdata_running(sdata))
346 return;
347
348 spin_lock_bh(&sdata->u.nan.func_lock);
349
350 func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
351 if (func)
352 instance_id = func->instance_id;
353
354 spin_unlock_bh(&sdata->u.nan.func_lock);
355
356 if (instance_id)
357 drv_del_nan_func(sdata->local, sdata, instance_id);
358 }
359
ieee80211_set_noack_map(struct wiphy * wiphy,struct net_device * dev,u16 noack_map)360 static int ieee80211_set_noack_map(struct wiphy *wiphy,
361 struct net_device *dev,
362 u16 noack_map)
363 {
364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
365
366 sdata->noack_map = noack_map;
367
368 ieee80211_check_fast_xmit_iface(sdata);
369
370 return 0;
371 }
372
ieee80211_set_tx(struct ieee80211_sub_if_data * sdata,const u8 * mac_addr,u8 key_idx)373 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
374 const u8 *mac_addr, u8 key_idx)
375 {
376 struct ieee80211_local *local = sdata->local;
377 struct ieee80211_key *key;
378 struct sta_info *sta;
379 int ret = -EINVAL;
380
381 if (!wiphy_ext_feature_isset(local->hw.wiphy,
382 NL80211_EXT_FEATURE_EXT_KEY_ID))
383 return -EINVAL;
384
385 sta = sta_info_get_bss(sdata, mac_addr);
386
387 if (!sta)
388 return -EINVAL;
389
390 if (sta->ptk_idx == key_idx)
391 return 0;
392
393 mutex_lock(&local->key_mtx);
394 key = key_mtx_dereference(local, sta->ptk[key_idx]);
395
396 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
397 ret = ieee80211_set_tx_key(key);
398
399 mutex_unlock(&local->key_mtx);
400 return ret;
401 }
402
ieee80211_add_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr,struct key_params * params)403 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
404 u8 key_idx, bool pairwise, const u8 *mac_addr,
405 struct key_params *params)
406 {
407 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
408 struct ieee80211_local *local = sdata->local;
409 struct sta_info *sta = NULL;
410 const struct ieee80211_cipher_scheme *cs = NULL;
411 struct ieee80211_key *key;
412 int err;
413
414 if (!ieee80211_sdata_running(sdata))
415 return -ENETDOWN;
416
417 if (pairwise && params->mode == NL80211_KEY_SET_TX)
418 return ieee80211_set_tx(sdata, mac_addr, key_idx);
419
420 /* reject WEP and TKIP keys if WEP failed to initialize */
421 switch (params->cipher) {
422 case WLAN_CIPHER_SUITE_WEP40:
423 case WLAN_CIPHER_SUITE_TKIP:
424 case WLAN_CIPHER_SUITE_WEP104:
425 if (WARN_ON_ONCE(fips_enabled))
426 return -EINVAL;
427 case WLAN_CIPHER_SUITE_CCMP:
428 case WLAN_CIPHER_SUITE_CCMP_256:
429 case WLAN_CIPHER_SUITE_AES_CMAC:
430 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
431 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
432 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
433 case WLAN_CIPHER_SUITE_GCMP:
434 case WLAN_CIPHER_SUITE_GCMP_256:
435 break;
436 default:
437 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
438 break;
439 }
440
441 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
442 params->key, params->seq_len, params->seq,
443 cs);
444 if (IS_ERR(key))
445 return PTR_ERR(key);
446
447 if (pairwise)
448 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
449
450 if (params->mode == NL80211_KEY_NO_TX)
451 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
452
453 mutex_lock(&local->sta_mtx);
454
455 if (mac_addr) {
456 sta = sta_info_get_bss(sdata, mac_addr);
457 /*
458 * The ASSOC test makes sure the driver is ready to
459 * receive the key. When wpa_supplicant has roamed
460 * using FT, it attempts to set the key before
461 * association has completed, this rejects that attempt
462 * so it will set the key again after association.
463 *
464 * TODO: accept the key if we have a station entry and
465 * add it to the device after the station.
466 */
467 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
468 ieee80211_key_free_unused(key);
469 err = -ENOENT;
470 goto out_unlock;
471 }
472 }
473
474 switch (sdata->vif.type) {
475 case NL80211_IFTYPE_STATION:
476 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
477 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
478 break;
479 case NL80211_IFTYPE_AP:
480 case NL80211_IFTYPE_AP_VLAN:
481 /* Keys without a station are used for TX only */
482 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
483 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
484 break;
485 case NL80211_IFTYPE_ADHOC:
486 /* no MFP (yet) */
487 break;
488 case NL80211_IFTYPE_MESH_POINT:
489 #ifdef CONFIG_MAC80211_MESH
490 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
491 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
492 break;
493 #endif
494 case NL80211_IFTYPE_WDS:
495 case NL80211_IFTYPE_MONITOR:
496 case NL80211_IFTYPE_P2P_DEVICE:
497 case NL80211_IFTYPE_NAN:
498 case NL80211_IFTYPE_UNSPECIFIED:
499 case NUM_NL80211_IFTYPES:
500 case NL80211_IFTYPE_P2P_CLIENT:
501 case NL80211_IFTYPE_P2P_GO:
502 case NL80211_IFTYPE_OCB:
503 /* shouldn't happen */
504 WARN_ON_ONCE(1);
505 break;
506 }
507
508 if (sta)
509 sta->cipher_scheme = cs;
510
511 err = ieee80211_key_link(key, sdata, sta);
512 /* KRACK protection, shouldn't happen but just silently accept key */
513 if (err == -EALREADY)
514 err = 0;
515
516 out_unlock:
517 mutex_unlock(&local->sta_mtx);
518
519 return err;
520 }
521
ieee80211_del_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool pairwise,const u8 * mac_addr)522 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
523 u8 key_idx, bool pairwise, const u8 *mac_addr)
524 {
525 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
526 struct ieee80211_local *local = sdata->local;
527 struct sta_info *sta;
528 struct ieee80211_key *key = NULL;
529 int ret;
530
531 mutex_lock(&local->sta_mtx);
532 mutex_lock(&local->key_mtx);
533
534 if (mac_addr) {
535 ret = -ENOENT;
536
537 sta = sta_info_get_bss(sdata, mac_addr);
538 if (!sta)
539 goto out_unlock;
540
541 if (pairwise)
542 key = key_mtx_dereference(local, sta->ptk[key_idx]);
543 else
544 key = key_mtx_dereference(local, sta->gtk[key_idx]);
545 } else
546 key = key_mtx_dereference(local, sdata->keys[key_idx]);
547
548 if (!key) {
549 ret = -ENOENT;
550 goto out_unlock;
551 }
552
553 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
554
555 ret = 0;
556 out_unlock:
557 mutex_unlock(&local->key_mtx);
558 mutex_unlock(&local->sta_mtx);
559
560 return ret;
561 }
562
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))563 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
564 u8 key_idx, bool pairwise, const u8 *mac_addr,
565 void *cookie,
566 void (*callback)(void *cookie,
567 struct key_params *params))
568 {
569 struct ieee80211_sub_if_data *sdata;
570 struct sta_info *sta = NULL;
571 u8 seq[6] = {0};
572 struct key_params params;
573 struct ieee80211_key *key = NULL;
574 u64 pn64;
575 u32 iv32;
576 u16 iv16;
577 int err = -ENOENT;
578 struct ieee80211_key_seq kseq = {};
579
580 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
581
582 rcu_read_lock();
583
584 if (mac_addr) {
585 sta = sta_info_get_bss(sdata, mac_addr);
586 if (!sta)
587 goto out;
588
589 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
590 key = rcu_dereference(sta->ptk[key_idx]);
591 else if (!pairwise &&
592 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
593 NUM_DEFAULT_BEACON_KEYS)
594 key = rcu_dereference(sta->gtk[key_idx]);
595 } else
596 key = rcu_dereference(sdata->keys[key_idx]);
597
598 if (!key)
599 goto out;
600
601 memset(¶ms, 0, sizeof(params));
602
603 params.cipher = key->conf.cipher;
604
605 switch (key->conf.cipher) {
606 case WLAN_CIPHER_SUITE_TKIP:
607 pn64 = atomic64_read(&key->conf.tx_pn);
608 iv32 = TKIP_PN_TO_IV32(pn64);
609 iv16 = TKIP_PN_TO_IV16(pn64);
610
611 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
612 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
613 drv_get_key_seq(sdata->local, key, &kseq);
614 iv32 = kseq.tkip.iv32;
615 iv16 = kseq.tkip.iv16;
616 }
617
618 seq[0] = iv16 & 0xff;
619 seq[1] = (iv16 >> 8) & 0xff;
620 seq[2] = iv32 & 0xff;
621 seq[3] = (iv32 >> 8) & 0xff;
622 seq[4] = (iv32 >> 16) & 0xff;
623 seq[5] = (iv32 >> 24) & 0xff;
624 params.seq = seq;
625 params.seq_len = 6;
626 break;
627 case WLAN_CIPHER_SUITE_CCMP:
628 case WLAN_CIPHER_SUITE_CCMP_256:
629 case WLAN_CIPHER_SUITE_AES_CMAC:
630 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
631 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
632 offsetof(typeof(kseq), aes_cmac));
633 fallthrough;
634 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
635 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
636 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
637 offsetof(typeof(kseq), aes_gmac));
638 fallthrough;
639 case WLAN_CIPHER_SUITE_GCMP:
640 case WLAN_CIPHER_SUITE_GCMP_256:
641 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
642 offsetof(typeof(kseq), gcmp));
643
644 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
645 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
646 drv_get_key_seq(sdata->local, key, &kseq);
647 memcpy(seq, kseq.ccmp.pn, 6);
648 } else {
649 pn64 = atomic64_read(&key->conf.tx_pn);
650 seq[0] = pn64;
651 seq[1] = pn64 >> 8;
652 seq[2] = pn64 >> 16;
653 seq[3] = pn64 >> 24;
654 seq[4] = pn64 >> 32;
655 seq[5] = pn64 >> 40;
656 }
657 params.seq = seq;
658 params.seq_len = 6;
659 break;
660 default:
661 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
662 break;
663 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
664 break;
665 drv_get_key_seq(sdata->local, key, &kseq);
666 params.seq = kseq.hw.seq;
667 params.seq_len = kseq.hw.seq_len;
668 break;
669 }
670
671 params.key = key->conf.key;
672 params.key_len = key->conf.keylen;
673
674 callback(cookie, ¶ms);
675 err = 0;
676
677 out:
678 rcu_read_unlock();
679 return err;
680 }
681
ieee80211_config_default_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx,bool uni,bool multi)682 static int ieee80211_config_default_key(struct wiphy *wiphy,
683 struct net_device *dev,
684 u8 key_idx, bool uni,
685 bool multi)
686 {
687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
688
689 ieee80211_set_default_key(sdata, key_idx, uni, multi);
690
691 return 0;
692 }
693
ieee80211_config_default_mgmt_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)694 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
695 struct net_device *dev,
696 u8 key_idx)
697 {
698 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
699
700 ieee80211_set_default_mgmt_key(sdata, key_idx);
701
702 return 0;
703 }
704
ieee80211_config_default_beacon_key(struct wiphy * wiphy,struct net_device * dev,u8 key_idx)705 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
706 struct net_device *dev,
707 u8 key_idx)
708 {
709 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
710
711 ieee80211_set_default_beacon_key(sdata, key_idx);
712
713 return 0;
714 }
715
sta_set_rate_info_tx(struct sta_info * sta,const struct ieee80211_tx_rate * rate,struct rate_info * rinfo)716 void sta_set_rate_info_tx(struct sta_info *sta,
717 const struct ieee80211_tx_rate *rate,
718 struct rate_info *rinfo)
719 {
720 rinfo->flags = 0;
721 if (rate->flags & IEEE80211_TX_RC_MCS) {
722 rinfo->flags |= RATE_INFO_FLAGS_MCS;
723 rinfo->mcs = rate->idx;
724 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
725 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
726 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
727 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
728 } else {
729 struct ieee80211_supported_band *sband;
730 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
731 u16 brate;
732
733 sband = ieee80211_get_sband(sta->sdata);
734 WARN_ON_ONCE(sband && !sband->bitrates);
735 if (sband && sband->bitrates) {
736 brate = sband->bitrates[rate->idx].bitrate;
737 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
738 }
739 }
740 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
741 rinfo->bw = RATE_INFO_BW_40;
742 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
743 rinfo->bw = RATE_INFO_BW_80;
744 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
745 rinfo->bw = RATE_INFO_BW_160;
746 else
747 rinfo->bw = RATE_INFO_BW_20;
748 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
749 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
750 }
751
ieee80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)752 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
753 int idx, u8 *mac, struct station_info *sinfo)
754 {
755 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
756 struct ieee80211_local *local = sdata->local;
757 struct sta_info *sta;
758 int ret = -ENOENT;
759
760 mutex_lock(&local->sta_mtx);
761
762 sta = sta_info_get_by_idx(sdata, idx);
763 if (sta) {
764 ret = 0;
765 memcpy(mac, sta->sta.addr, ETH_ALEN);
766 sta_set_sinfo(sta, sinfo, true);
767 }
768
769 mutex_unlock(&local->sta_mtx);
770
771 return ret;
772 }
773
ieee80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)774 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
775 int idx, struct survey_info *survey)
776 {
777 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
778
779 return drv_get_survey(local, idx, survey);
780 }
781
ieee80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)782 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
783 const u8 *mac, struct station_info *sinfo)
784 {
785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
786 struct ieee80211_local *local = sdata->local;
787 struct sta_info *sta;
788 int ret = -ENOENT;
789
790 mutex_lock(&local->sta_mtx);
791
792 sta = sta_info_get_bss(sdata, mac);
793 if (sta) {
794 ret = 0;
795 sta_set_sinfo(sta, sinfo, true);
796 }
797
798 mutex_unlock(&local->sta_mtx);
799
800 return ret;
801 }
802
ieee80211_set_monitor_channel(struct wiphy * wiphy,struct cfg80211_chan_def * chandef)803 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
804 struct cfg80211_chan_def *chandef)
805 {
806 struct ieee80211_local *local = wiphy_priv(wiphy);
807 struct ieee80211_sub_if_data *sdata;
808 int ret = 0;
809
810 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
811 return 0;
812
813 mutex_lock(&local->mtx);
814 if (local->use_chanctx) {
815 sdata = rtnl_dereference(local->monitor_sdata);
816 if (sdata) {
817 ieee80211_vif_release_channel(sdata);
818 ret = ieee80211_vif_use_channel(sdata, chandef,
819 IEEE80211_CHANCTX_EXCLUSIVE);
820 }
821 } else if (local->open_count == local->monitors) {
822 local->_oper_chandef = *chandef;
823 ieee80211_hw_config(local, 0);
824 }
825
826 if (ret == 0)
827 local->monitor_chandef = *chandef;
828 mutex_unlock(&local->mtx);
829
830 return ret;
831 }
832
ieee80211_set_probe_resp(struct ieee80211_sub_if_data * sdata,const u8 * resp,size_t resp_len,const struct ieee80211_csa_settings * csa)833 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
834 const u8 *resp, size_t resp_len,
835 const struct ieee80211_csa_settings *csa)
836 {
837 struct probe_resp *new, *old;
838
839 if (!resp || !resp_len)
840 return 1;
841
842 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
843
844 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
845 if (!new)
846 return -ENOMEM;
847
848 new->len = resp_len;
849 memcpy(new->data, resp, resp_len);
850
851 if (csa)
852 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
853 csa->n_counter_offsets_presp *
854 sizeof(new->cntdwn_counter_offsets[0]));
855
856 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
857 if (old)
858 kfree_rcu(old, rcu_head);
859
860 return 0;
861 }
862
ieee80211_set_fils_discovery(struct ieee80211_sub_if_data * sdata,struct cfg80211_fils_discovery * params)863 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
864 struct cfg80211_fils_discovery *params)
865 {
866 struct fils_discovery_data *new, *old = NULL;
867 struct ieee80211_fils_discovery *fd;
868
869 if (!params->tmpl || !params->tmpl_len)
870 return -EINVAL;
871
872 fd = &sdata->vif.bss_conf.fils_discovery;
873 fd->min_interval = params->min_interval;
874 fd->max_interval = params->max_interval;
875
876 old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
877 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
878 if (!new)
879 return -ENOMEM;
880 new->len = params->tmpl_len;
881 memcpy(new->data, params->tmpl, params->tmpl_len);
882 rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
883
884 if (old)
885 kfree_rcu(old, rcu_head);
886
887 return 0;
888 }
889
890 static int
ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data * sdata,struct cfg80211_unsol_bcast_probe_resp * params)891 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
892 struct cfg80211_unsol_bcast_probe_resp *params)
893 {
894 struct unsol_bcast_probe_resp_data *new, *old = NULL;
895
896 if (!params->tmpl || !params->tmpl_len)
897 return -EINVAL;
898
899 old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
900 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
901 if (!new)
902 return -ENOMEM;
903 new->len = params->tmpl_len;
904 memcpy(new->data, params->tmpl, params->tmpl_len);
905 rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
906
907 if (old)
908 kfree_rcu(old, rcu_head);
909
910 sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
911 params->interval;
912
913 return 0;
914 }
915
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)916 static int ieee80211_set_ftm_responder_params(
917 struct ieee80211_sub_if_data *sdata,
918 const u8 *lci, size_t lci_len,
919 const u8 *civicloc, size_t civicloc_len)
920 {
921 struct ieee80211_ftm_responder_params *new, *old;
922 struct ieee80211_bss_conf *bss_conf;
923 u8 *pos;
924 int len;
925
926 if (!lci_len && !civicloc_len)
927 return 0;
928
929 bss_conf = &sdata->vif.bss_conf;
930 old = bss_conf->ftmr_params;
931 len = lci_len + civicloc_len;
932
933 new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
934 if (!new)
935 return -ENOMEM;
936
937 pos = (u8 *)(new + 1);
938 if (lci_len) {
939 new->lci_len = lci_len;
940 new->lci = pos;
941 memcpy(pos, lci, lci_len);
942 pos += lci_len;
943 }
944
945 if (civicloc_len) {
946 new->civicloc_len = civicloc_len;
947 new->civicloc = pos;
948 memcpy(pos, civicloc, civicloc_len);
949 pos += civicloc_len;
950 }
951
952 bss_conf->ftmr_params = new;
953 kfree(old);
954
955 return 0;
956 }
957
ieee80211_assign_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_beacon_data * params,const struct ieee80211_csa_settings * csa)958 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
959 struct cfg80211_beacon_data *params,
960 const struct ieee80211_csa_settings *csa)
961 {
962 struct beacon_data *new, *old;
963 int new_head_len, new_tail_len;
964 int size, err;
965 u32 changed = BSS_CHANGED_BEACON;
966
967 old = sdata_dereference(sdata->u.ap.beacon, sdata);
968
969
970 /* Need to have a beacon head if we don't have one yet */
971 if (!params->head && !old)
972 return -EINVAL;
973
974 /* new or old head? */
975 if (params->head)
976 new_head_len = params->head_len;
977 else
978 new_head_len = old->head_len;
979
980 /* new or old tail? */
981 if (params->tail || !old)
982 /* params->tail_len will be zero for !params->tail */
983 new_tail_len = params->tail_len;
984 else
985 new_tail_len = old->tail_len;
986
987 size = sizeof(*new) + new_head_len + new_tail_len;
988
989 new = kzalloc(size, GFP_KERNEL);
990 if (!new)
991 return -ENOMEM;
992
993 /* start filling the new info now */
994
995 /*
996 * pointers go into the block we allocated,
997 * memory is | beacon_data | head | tail |
998 */
999 new->head = ((u8 *) new) + sizeof(*new);
1000 new->tail = new->head + new_head_len;
1001 new->head_len = new_head_len;
1002 new->tail_len = new_tail_len;
1003
1004 if (csa) {
1005 new->cntdwn_current_counter = csa->count;
1006 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1007 csa->n_counter_offsets_beacon *
1008 sizeof(new->cntdwn_counter_offsets[0]));
1009 }
1010
1011 /* copy in head */
1012 if (params->head)
1013 memcpy(new->head, params->head, new_head_len);
1014 else
1015 memcpy(new->head, old->head, new_head_len);
1016
1017 /* copy in optional tail */
1018 if (params->tail)
1019 memcpy(new->tail, params->tail, new_tail_len);
1020 else
1021 if (old)
1022 memcpy(new->tail, old->tail, new_tail_len);
1023
1024 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1025 params->probe_resp_len, csa);
1026 if (err < 0) {
1027 kfree(new);
1028 return err;
1029 }
1030 if (err == 0)
1031 changed |= BSS_CHANGED_AP_PROBE_RESP;
1032
1033 if (params->ftm_responder != -1) {
1034 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1035 err = ieee80211_set_ftm_responder_params(sdata,
1036 params->lci,
1037 params->lci_len,
1038 params->civicloc,
1039 params->civicloc_len);
1040
1041 if (err < 0) {
1042 kfree(new);
1043 return err;
1044 }
1045
1046 changed |= BSS_CHANGED_FTM_RESPONDER;
1047 }
1048
1049 rcu_assign_pointer(sdata->u.ap.beacon, new);
1050
1051 if (old)
1052 kfree_rcu(old, rcu_head);
1053
1054 return changed;
1055 }
1056
ieee80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1057 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1058 struct cfg80211_ap_settings *params)
1059 {
1060 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1061 struct ieee80211_local *local = sdata->local;
1062 struct beacon_data *old;
1063 struct ieee80211_sub_if_data *vlan;
1064 u32 changed = BSS_CHANGED_BEACON_INT |
1065 BSS_CHANGED_BEACON_ENABLED |
1066 BSS_CHANGED_BEACON |
1067 BSS_CHANGED_SSID |
1068 BSS_CHANGED_P2P_PS |
1069 BSS_CHANGED_TXPOWER |
1070 BSS_CHANGED_TWT;
1071 int i, err;
1072 int prev_beacon_int;
1073
1074 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1075 if (old)
1076 return -EALREADY;
1077
1078 if (params->smps_mode != NL80211_SMPS_OFF)
1079 return -ENOTSUPP;
1080
1081 sdata->smps_mode = IEEE80211_SMPS_OFF;
1082
1083 sdata->needed_rx_chains = sdata->local->rx_chains;
1084
1085 prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1086 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1087
1088 if (params->he_cap && params->he_oper) {
1089 sdata->vif.bss_conf.he_support = true;
1090 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1091 le32_get_bits(params->he_oper->he_oper_params,
1092 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1093 sdata->vif.bss_conf.frame_time_rts_th =
1094 le32_get_bits(params->he_oper->he_oper_params,
1095 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1096 changed |= BSS_CHANGED_HE_OBSS_PD;
1097
1098 if (params->he_bss_color.enabled)
1099 changed |= BSS_CHANGED_HE_BSS_COLOR;
1100 }
1101
1102 mutex_lock(&local->mtx);
1103 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
1104 IEEE80211_CHANCTX_SHARED);
1105 if (!err)
1106 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1107 mutex_unlock(&local->mtx);
1108 if (err) {
1109 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1110 return err;
1111 }
1112
1113 /*
1114 * Apply control port protocol, this allows us to
1115 * not encrypt dynamic WEP control frames.
1116 */
1117 sdata->control_port_protocol = params->crypto.control_port_ethertype;
1118 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1119 sdata->control_port_over_nl80211 =
1120 params->crypto.control_port_over_nl80211;
1121 sdata->control_port_no_preauth =
1122 params->crypto.control_port_no_preauth;
1123 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1124 ¶ms->crypto,
1125 sdata->vif.type);
1126
1127 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1128 vlan->control_port_protocol =
1129 params->crypto.control_port_ethertype;
1130 vlan->control_port_no_encrypt =
1131 params->crypto.control_port_no_encrypt;
1132 vlan->control_port_over_nl80211 =
1133 params->crypto.control_port_over_nl80211;
1134 vlan->control_port_no_preauth =
1135 params->crypto.control_port_no_preauth;
1136 vlan->encrypt_headroom =
1137 ieee80211_cs_headroom(sdata->local,
1138 ¶ms->crypto,
1139 vlan->vif.type);
1140 }
1141
1142 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1143 sdata->vif.bss_conf.enable_beacon = true;
1144 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1145 sdata->vif.bss_conf.twt_responder = params->twt_responder;
1146 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd,
1147 sizeof(struct ieee80211_he_obss_pd));
1148 memcpy(&sdata->vif.bss_conf.he_bss_color, ¶ms->he_bss_color,
1149 sizeof(struct ieee80211_he_bss_color));
1150 sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1151 NL80211_BAND_S1GHZ;
1152
1153 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1154 if (params->ssid_len)
1155 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1156 params->ssid_len);
1157 sdata->vif.bss_conf.hidden_ssid =
1158 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1159
1160 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1161 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1162 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1163 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1164 if (params->p2p_opp_ps)
1165 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1166 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1167
1168 sdata->beacon_rate_set = false;
1169 if (wiphy_ext_feature_isset(local->hw.wiphy,
1170 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1171 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1172 sdata->beacon_rateidx_mask[i] =
1173 params->beacon_rate.control[i].legacy;
1174 if (sdata->beacon_rateidx_mask[i])
1175 sdata->beacon_rate_set = true;
1176 }
1177 }
1178
1179 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1180 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1181
1182 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL);
1183 if (err < 0)
1184 goto error;
1185 changed |= err;
1186
1187 if (params->fils_discovery.max_interval) {
1188 err = ieee80211_set_fils_discovery(sdata,
1189 ¶ms->fils_discovery);
1190 if (err < 0)
1191 goto error;
1192 changed |= BSS_CHANGED_FILS_DISCOVERY;
1193 }
1194
1195 if (params->unsol_bcast_probe_resp.interval) {
1196 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1197 ¶ms->unsol_bcast_probe_resp);
1198 if (err < 0)
1199 goto error;
1200 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1201 }
1202
1203 err = drv_start_ap(sdata->local, sdata);
1204 if (err) {
1205 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1206
1207 if (old)
1208 kfree_rcu(old, rcu_head);
1209 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1210 goto error;
1211 }
1212
1213 ieee80211_recalc_dtim(local, sdata);
1214 ieee80211_bss_info_change_notify(sdata, changed);
1215
1216 netif_carrier_on(dev);
1217 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1218 netif_carrier_on(vlan->dev);
1219
1220 return 0;
1221
1222 error:
1223 mutex_lock(&local->mtx);
1224 ieee80211_vif_release_channel(sdata);
1225 mutex_unlock(&local->mtx);
1226
1227 return err;
1228 }
1229
ieee80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * params)1230 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1231 struct cfg80211_beacon_data *params)
1232 {
1233 struct ieee80211_sub_if_data *sdata;
1234 struct beacon_data *old;
1235 int err;
1236
1237 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1238 sdata_assert_lock(sdata);
1239
1240 /* don't allow changing the beacon while CSA is in place - offset
1241 * of channel switch counter may change
1242 */
1243 if (sdata->vif.csa_active)
1244 return -EBUSY;
1245
1246 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1247 if (!old)
1248 return -ENOENT;
1249
1250 err = ieee80211_assign_beacon(sdata, params, NULL);
1251 if (err < 0)
1252 return err;
1253 ieee80211_bss_info_change_notify(sdata, err);
1254 return 0;
1255 }
1256
ieee80211_stop_ap(struct wiphy * wiphy,struct net_device * dev)1257 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1258 {
1259 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1260 struct ieee80211_sub_if_data *vlan;
1261 struct ieee80211_local *local = sdata->local;
1262 struct beacon_data *old_beacon;
1263 struct probe_resp *old_probe_resp;
1264 struct fils_discovery_data *old_fils_discovery;
1265 struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1266 struct cfg80211_chan_def chandef;
1267
1268 sdata_assert_lock(sdata);
1269
1270 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1271 if (!old_beacon)
1272 return -ENOENT;
1273 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1274 old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1275 sdata);
1276 old_unsol_bcast_probe_resp =
1277 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1278 sdata);
1279
1280 /* abort any running channel switch */
1281 mutex_lock(&local->mtx);
1282 sdata->vif.csa_active = false;
1283 if (sdata->csa_block_tx) {
1284 ieee80211_wake_vif_queues(local, sdata,
1285 IEEE80211_QUEUE_STOP_REASON_CSA);
1286 sdata->csa_block_tx = false;
1287 }
1288
1289 mutex_unlock(&local->mtx);
1290
1291 kfree(sdata->u.ap.next_beacon);
1292 sdata->u.ap.next_beacon = NULL;
1293
1294 /* turn off carrier for this interface and dependent VLANs */
1295 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1296 netif_carrier_off(vlan->dev);
1297 netif_carrier_off(dev);
1298
1299 /* remove beacon and probe response */
1300 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1301 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1302 RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1303 RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1304 kfree_rcu(old_beacon, rcu_head);
1305 if (old_probe_resp)
1306 kfree_rcu(old_probe_resp, rcu_head);
1307 if (old_fils_discovery)
1308 kfree_rcu(old_fils_discovery, rcu_head);
1309 if (old_unsol_bcast_probe_resp)
1310 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1311
1312 kfree(sdata->vif.bss_conf.ftmr_params);
1313 sdata->vif.bss_conf.ftmr_params = NULL;
1314
1315 __sta_info_flush(sdata, true);
1316 ieee80211_free_keys(sdata, true);
1317
1318 sdata->vif.bss_conf.enable_beacon = false;
1319 sdata->beacon_rate_set = false;
1320 sdata->vif.bss_conf.ssid_len = 0;
1321 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1322 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1323
1324 if (sdata->wdev.cac_started) {
1325 chandef = sdata->vif.bss_conf.chandef;
1326 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1327 cfg80211_cac_event(sdata->dev, &chandef,
1328 NL80211_RADAR_CAC_ABORTED,
1329 GFP_KERNEL);
1330 }
1331
1332 drv_stop_ap(sdata->local, sdata);
1333
1334 /* free all potentially still buffered bcast frames */
1335 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1336 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1337
1338 mutex_lock(&local->mtx);
1339 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1340 ieee80211_vif_release_channel(sdata);
1341 mutex_unlock(&local->mtx);
1342
1343 return 0;
1344 }
1345
sta_apply_auth_flags(struct ieee80211_local * local,struct sta_info * sta,u32 mask,u32 set)1346 static int sta_apply_auth_flags(struct ieee80211_local *local,
1347 struct sta_info *sta,
1348 u32 mask, u32 set)
1349 {
1350 int ret;
1351
1352 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1353 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1354 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1355 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1356 if (ret)
1357 return ret;
1358 }
1359
1360 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1361 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1362 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1363 /*
1364 * When peer becomes associated, init rate control as
1365 * well. Some drivers require rate control initialized
1366 * before drv_sta_state() is called.
1367 */
1368 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1369 rate_control_rate_init(sta);
1370
1371 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1372 if (ret)
1373 return ret;
1374 }
1375
1376 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1377 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1378 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1379 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1380 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1381 else
1382 ret = 0;
1383 if (ret)
1384 return ret;
1385 }
1386
1387 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1388 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1389 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1390 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1391 if (ret)
1392 return ret;
1393 }
1394
1395 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1396 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1397 test_sta_flag(sta, WLAN_STA_AUTH)) {
1398 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1399 if (ret)
1400 return ret;
1401 }
1402
1403 return 0;
1404 }
1405
sta_apply_mesh_params(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1406 static void sta_apply_mesh_params(struct ieee80211_local *local,
1407 struct sta_info *sta,
1408 struct station_parameters *params)
1409 {
1410 #ifdef CONFIG_MAC80211_MESH
1411 struct ieee80211_sub_if_data *sdata = sta->sdata;
1412 u32 changed = 0;
1413
1414 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1415 switch (params->plink_state) {
1416 case NL80211_PLINK_ESTAB:
1417 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1418 changed = mesh_plink_inc_estab_count(sdata);
1419 sta->mesh->plink_state = params->plink_state;
1420 sta->mesh->aid = params->peer_aid;
1421
1422 ieee80211_mps_sta_status_update(sta);
1423 changed |= ieee80211_mps_set_sta_local_pm(sta,
1424 sdata->u.mesh.mshcfg.power_mode);
1425
1426 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1427 /* init at low value */
1428 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1429
1430 break;
1431 case NL80211_PLINK_LISTEN:
1432 case NL80211_PLINK_BLOCKED:
1433 case NL80211_PLINK_OPN_SNT:
1434 case NL80211_PLINK_OPN_RCVD:
1435 case NL80211_PLINK_CNF_RCVD:
1436 case NL80211_PLINK_HOLDING:
1437 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1438 changed = mesh_plink_dec_estab_count(sdata);
1439 sta->mesh->plink_state = params->plink_state;
1440
1441 ieee80211_mps_sta_status_update(sta);
1442 changed |= ieee80211_mps_set_sta_local_pm(sta,
1443 NL80211_MESH_POWER_UNKNOWN);
1444 break;
1445 default:
1446 /* nothing */
1447 break;
1448 }
1449 }
1450
1451 switch (params->plink_action) {
1452 case NL80211_PLINK_ACTION_NO_ACTION:
1453 /* nothing */
1454 break;
1455 case NL80211_PLINK_ACTION_OPEN:
1456 changed |= mesh_plink_open(sta);
1457 break;
1458 case NL80211_PLINK_ACTION_BLOCK:
1459 changed |= mesh_plink_block(sta);
1460 break;
1461 }
1462
1463 if (params->local_pm)
1464 changed |= ieee80211_mps_set_sta_local_pm(sta,
1465 params->local_pm);
1466
1467 ieee80211_mbss_info_change_notify(sdata, changed);
1468 #endif
1469 }
1470
sta_apply_parameters(struct ieee80211_local * local,struct sta_info * sta,struct station_parameters * params)1471 static int sta_apply_parameters(struct ieee80211_local *local,
1472 struct sta_info *sta,
1473 struct station_parameters *params)
1474 {
1475 int ret = 0;
1476 struct ieee80211_supported_band *sband;
1477 struct ieee80211_sub_if_data *sdata = sta->sdata;
1478 u32 mask, set;
1479
1480 sband = ieee80211_get_sband(sdata);
1481 if (!sband)
1482 return -EINVAL;
1483
1484 mask = params->sta_flags_mask;
1485 set = params->sta_flags_set;
1486
1487 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1488 /*
1489 * In mesh mode, ASSOCIATED isn't part of the nl80211
1490 * API but must follow AUTHENTICATED for driver state.
1491 */
1492 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1493 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1494 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1495 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1496 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1497 /*
1498 * TDLS -- everything follows authorized, but
1499 * only becoming authorized is possible, not
1500 * going back
1501 */
1502 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1503 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1504 BIT(NL80211_STA_FLAG_ASSOCIATED);
1505 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1506 BIT(NL80211_STA_FLAG_ASSOCIATED);
1507 }
1508 }
1509
1510 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1511 local->hw.queues >= IEEE80211_NUM_ACS)
1512 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1513
1514 /* auth flags will be set later for TDLS,
1515 * and for unassociated stations that move to assocaited */
1516 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1517 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1518 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1519 ret = sta_apply_auth_flags(local, sta, mask, set);
1520 if (ret)
1521 return ret;
1522 }
1523
1524 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1525 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1526 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1527 else
1528 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1529 }
1530
1531 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1532 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1533 if (set & BIT(NL80211_STA_FLAG_MFP))
1534 set_sta_flag(sta, WLAN_STA_MFP);
1535 else
1536 clear_sta_flag(sta, WLAN_STA_MFP);
1537 }
1538
1539 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1540 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1541 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1542 else
1543 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1544 }
1545
1546 /* mark TDLS channel switch support, if the AP allows it */
1547 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1548 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1549 params->ext_capab_len >= 4 &&
1550 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1551 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1552
1553 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1554 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1555 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1556 params->ext_capab_len >= 8 &&
1557 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1558 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1559
1560 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1561 sta->sta.uapsd_queues = params->uapsd_queues;
1562 sta->sta.max_sp = params->max_sp;
1563 }
1564
1565 /* The sender might not have sent the last bit, consider it to be 0 */
1566 if (params->ext_capab_len >= 8) {
1567 u8 val = (params->ext_capab[7] &
1568 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1569
1570 /* we did get all the bits, take the MSB as well */
1571 if (params->ext_capab_len >= 9) {
1572 u8 val_msb = params->ext_capab[8] &
1573 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1574 val_msb <<= 1;
1575 val |= val_msb;
1576 }
1577
1578 switch (val) {
1579 case 1:
1580 sta->sta.max_amsdu_subframes = 32;
1581 break;
1582 case 2:
1583 sta->sta.max_amsdu_subframes = 16;
1584 break;
1585 case 3:
1586 sta->sta.max_amsdu_subframes = 8;
1587 break;
1588 default:
1589 sta->sta.max_amsdu_subframes = 0;
1590 }
1591 }
1592
1593 /*
1594 * cfg80211 validates this (1-2007) and allows setting the AID
1595 * only when creating a new station entry
1596 */
1597 if (params->aid)
1598 sta->sta.aid = params->aid;
1599
1600 /*
1601 * Some of the following updates would be racy if called on an
1602 * existing station, via ieee80211_change_station(). However,
1603 * all such changes are rejected by cfg80211 except for updates
1604 * changing the supported rates on an existing but not yet used
1605 * TDLS peer.
1606 */
1607
1608 if (params->listen_interval >= 0)
1609 sta->listen_interval = params->listen_interval;
1610
1611 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1612 sta->sta.txpwr.type = params->txpwr.type;
1613 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1614 sta->sta.txpwr.power = params->txpwr.power;
1615 ret = drv_sta_set_txpwr(local, sdata, sta);
1616 if (ret)
1617 return ret;
1618 }
1619
1620 if (params->supported_rates && params->supported_rates_len) {
1621 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1622 sband, params->supported_rates,
1623 params->supported_rates_len,
1624 &sta->sta.supp_rates[sband->band]);
1625 }
1626
1627 if (params->ht_capa)
1628 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1629 params->ht_capa, sta);
1630
1631 /* VHT can override some HT caps such as the A-MSDU max length */
1632 if (params->vht_capa)
1633 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1634 params->vht_capa, sta);
1635
1636 if (params->he_capa)
1637 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1638 (void *)params->he_capa,
1639 params->he_capa_len,
1640 (void *)params->he_6ghz_capa,
1641 sta);
1642
1643 if (params->opmode_notif_used) {
1644 /* returned value is only needed for rc update, but the
1645 * rc isn't initialized here yet, so ignore it
1646 */
1647 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1648 sband->band);
1649 }
1650
1651 if (params->support_p2p_ps >= 0)
1652 sta->sta.support_p2p_ps = params->support_p2p_ps;
1653
1654 if (ieee80211_vif_is_mesh(&sdata->vif))
1655 sta_apply_mesh_params(local, sta, params);
1656
1657 if (params->airtime_weight)
1658 sta->airtime_weight = params->airtime_weight;
1659
1660 /* set the STA state after all sta info from usermode has been set */
1661 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1662 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1663 ret = sta_apply_auth_flags(local, sta, mask, set);
1664 if (ret)
1665 return ret;
1666 }
1667
1668 return 0;
1669 }
1670
ieee80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1671 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1672 const u8 *mac,
1673 struct station_parameters *params)
1674 {
1675 struct ieee80211_local *local = wiphy_priv(wiphy);
1676 struct sta_info *sta;
1677 struct ieee80211_sub_if_data *sdata;
1678 int err;
1679
1680 if (params->vlan) {
1681 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1682
1683 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1684 sdata->vif.type != NL80211_IFTYPE_AP)
1685 return -EINVAL;
1686 } else
1687 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1688
1689 if (ether_addr_equal(mac, sdata->vif.addr))
1690 return -EINVAL;
1691
1692 if (!is_valid_ether_addr(mac))
1693 return -EINVAL;
1694
1695 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1696 sdata->vif.type == NL80211_IFTYPE_STATION &&
1697 !sdata->u.mgd.associated)
1698 return -EINVAL;
1699
1700 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1701 if (!sta)
1702 return -ENOMEM;
1703
1704 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1705 sta->sta.tdls = true;
1706
1707 err = sta_apply_parameters(local, sta, params);
1708 if (err) {
1709 sta_info_free(local, sta);
1710 return err;
1711 }
1712
1713 /*
1714 * for TDLS and for unassociated station, rate control should be
1715 * initialized only when rates are known and station is marked
1716 * authorized/associated
1717 */
1718 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1719 test_sta_flag(sta, WLAN_STA_ASSOC))
1720 rate_control_rate_init(sta);
1721
1722 err = sta_info_insert_rcu(sta);
1723 if (err) {
1724 rcu_read_unlock();
1725 return err;
1726 }
1727
1728 rcu_read_unlock();
1729
1730 return 0;
1731 }
1732
ieee80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1733 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1734 struct station_del_parameters *params)
1735 {
1736 struct ieee80211_sub_if_data *sdata;
1737
1738 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1739
1740 if (params->mac)
1741 return sta_info_destroy_addr_bss(sdata, params->mac);
1742
1743 sta_info_flush(sdata);
1744 return 0;
1745 }
1746
ieee80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)1747 static int ieee80211_change_station(struct wiphy *wiphy,
1748 struct net_device *dev, const u8 *mac,
1749 struct station_parameters *params)
1750 {
1751 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1752 struct ieee80211_local *local = wiphy_priv(wiphy);
1753 struct sta_info *sta;
1754 struct ieee80211_sub_if_data *vlansdata;
1755 enum cfg80211_station_type statype;
1756 int err;
1757
1758 mutex_lock(&local->sta_mtx);
1759
1760 sta = sta_info_get_bss(sdata, mac);
1761 if (!sta) {
1762 err = -ENOENT;
1763 goto out_err;
1764 }
1765
1766 switch (sdata->vif.type) {
1767 case NL80211_IFTYPE_MESH_POINT:
1768 if (sdata->u.mesh.user_mpm)
1769 statype = CFG80211_STA_MESH_PEER_USER;
1770 else
1771 statype = CFG80211_STA_MESH_PEER_KERNEL;
1772 break;
1773 case NL80211_IFTYPE_ADHOC:
1774 statype = CFG80211_STA_IBSS;
1775 break;
1776 case NL80211_IFTYPE_STATION:
1777 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1778 statype = CFG80211_STA_AP_STA;
1779 break;
1780 }
1781 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1782 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1783 else
1784 statype = CFG80211_STA_TDLS_PEER_SETUP;
1785 break;
1786 case NL80211_IFTYPE_AP:
1787 case NL80211_IFTYPE_AP_VLAN:
1788 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1789 statype = CFG80211_STA_AP_CLIENT;
1790 else
1791 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1792 break;
1793 default:
1794 err = -EOPNOTSUPP;
1795 goto out_err;
1796 }
1797
1798 err = cfg80211_check_station_change(wiphy, params, statype);
1799 if (err)
1800 goto out_err;
1801
1802 if (params->vlan && params->vlan != sta->sdata->dev) {
1803 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1804
1805 if (params->vlan->ieee80211_ptr->use_4addr) {
1806 if (vlansdata->u.vlan.sta) {
1807 err = -EBUSY;
1808 goto out_err;
1809 }
1810
1811 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1812 __ieee80211_check_fast_rx_iface(vlansdata);
1813 drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1814 }
1815
1816 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1817 sta->sdata->u.vlan.sta) {
1818 ieee80211_clear_fast_rx(sta);
1819 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1820 }
1821
1822 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1823 ieee80211_vif_dec_num_mcast(sta->sdata);
1824
1825 sta->sdata = vlansdata;
1826 ieee80211_check_fast_xmit(sta);
1827
1828 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1829 ieee80211_vif_inc_num_mcast(sta->sdata);
1830 cfg80211_send_layer2_update(sta->sdata->dev,
1831 sta->sta.addr);
1832 }
1833 }
1834
1835 err = sta_apply_parameters(local, sta, params);
1836 if (err)
1837 goto out_err;
1838
1839 mutex_unlock(&local->sta_mtx);
1840
1841 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1842 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1843 ieee80211_recalc_ps(local);
1844 ieee80211_recalc_ps_vif(sdata);
1845 }
1846
1847 return 0;
1848 out_err:
1849 mutex_unlock(&local->sta_mtx);
1850 return err;
1851 }
1852
1853 #ifdef CONFIG_MAC80211_MESH
ieee80211_add_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1854 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1855 const u8 *dst, const u8 *next_hop)
1856 {
1857 struct ieee80211_sub_if_data *sdata;
1858 struct mesh_path *mpath;
1859 struct sta_info *sta;
1860
1861 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1862
1863 rcu_read_lock();
1864 sta = sta_info_get(sdata, next_hop);
1865 if (!sta) {
1866 rcu_read_unlock();
1867 return -ENOENT;
1868 }
1869
1870 mpath = mesh_path_add(sdata, dst);
1871 if (IS_ERR(mpath)) {
1872 rcu_read_unlock();
1873 return PTR_ERR(mpath);
1874 }
1875
1876 mesh_path_fix_nexthop(mpath, sta);
1877
1878 rcu_read_unlock();
1879 return 0;
1880 }
1881
ieee80211_del_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst)1882 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1883 const u8 *dst)
1884 {
1885 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1886
1887 if (dst)
1888 return mesh_path_del(sdata, dst);
1889
1890 mesh_path_flush_by_iface(sdata);
1891 return 0;
1892 }
1893
ieee80211_change_mpath(struct wiphy * wiphy,struct net_device * dev,const u8 * dst,const u8 * next_hop)1894 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1895 const u8 *dst, const u8 *next_hop)
1896 {
1897 struct ieee80211_sub_if_data *sdata;
1898 struct mesh_path *mpath;
1899 struct sta_info *sta;
1900
1901 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1902
1903 rcu_read_lock();
1904
1905 sta = sta_info_get(sdata, next_hop);
1906 if (!sta) {
1907 rcu_read_unlock();
1908 return -ENOENT;
1909 }
1910
1911 mpath = mesh_path_lookup(sdata, dst);
1912 if (!mpath) {
1913 rcu_read_unlock();
1914 return -ENOENT;
1915 }
1916
1917 mesh_path_fix_nexthop(mpath, sta);
1918
1919 rcu_read_unlock();
1920 return 0;
1921 }
1922
mpath_set_pinfo(struct mesh_path * mpath,u8 * next_hop,struct mpath_info * pinfo)1923 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1924 struct mpath_info *pinfo)
1925 {
1926 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1927
1928 if (next_hop_sta)
1929 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1930 else
1931 eth_zero_addr(next_hop);
1932
1933 memset(pinfo, 0, sizeof(*pinfo));
1934
1935 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1936
1937 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1938 MPATH_INFO_SN |
1939 MPATH_INFO_METRIC |
1940 MPATH_INFO_EXPTIME |
1941 MPATH_INFO_DISCOVERY_TIMEOUT |
1942 MPATH_INFO_DISCOVERY_RETRIES |
1943 MPATH_INFO_FLAGS |
1944 MPATH_INFO_HOP_COUNT |
1945 MPATH_INFO_PATH_CHANGE;
1946
1947 pinfo->frame_qlen = mpath->frame_queue.qlen;
1948 pinfo->sn = mpath->sn;
1949 pinfo->metric = mpath->metric;
1950 if (time_before(jiffies, mpath->exp_time))
1951 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1952 pinfo->discovery_timeout =
1953 jiffies_to_msecs(mpath->discovery_timeout);
1954 pinfo->discovery_retries = mpath->discovery_retries;
1955 if (mpath->flags & MESH_PATH_ACTIVE)
1956 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1957 if (mpath->flags & MESH_PATH_RESOLVING)
1958 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1959 if (mpath->flags & MESH_PATH_SN_VALID)
1960 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1961 if (mpath->flags & MESH_PATH_FIXED)
1962 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1963 if (mpath->flags & MESH_PATH_RESOLVED)
1964 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1965 pinfo->hop_count = mpath->hop_count;
1966 pinfo->path_change_count = mpath->path_change_count;
1967 }
1968
ieee80211_get_mpath(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1969 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1970 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1971
1972 {
1973 struct ieee80211_sub_if_data *sdata;
1974 struct mesh_path *mpath;
1975
1976 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1977
1978 rcu_read_lock();
1979 mpath = mesh_path_lookup(sdata, dst);
1980 if (!mpath) {
1981 rcu_read_unlock();
1982 return -ENOENT;
1983 }
1984 memcpy(dst, mpath->dst, ETH_ALEN);
1985 mpath_set_pinfo(mpath, next_hop, pinfo);
1986 rcu_read_unlock();
1987 return 0;
1988 }
1989
ieee80211_dump_mpath(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * next_hop,struct mpath_info * pinfo)1990 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1991 int idx, u8 *dst, u8 *next_hop,
1992 struct mpath_info *pinfo)
1993 {
1994 struct ieee80211_sub_if_data *sdata;
1995 struct mesh_path *mpath;
1996
1997 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1998
1999 rcu_read_lock();
2000 mpath = mesh_path_lookup_by_idx(sdata, idx);
2001 if (!mpath) {
2002 rcu_read_unlock();
2003 return -ENOENT;
2004 }
2005 memcpy(dst, mpath->dst, ETH_ALEN);
2006 mpath_set_pinfo(mpath, next_hop, pinfo);
2007 rcu_read_unlock();
2008 return 0;
2009 }
2010
mpp_set_pinfo(struct mesh_path * mpath,u8 * mpp,struct mpath_info * pinfo)2011 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2012 struct mpath_info *pinfo)
2013 {
2014 memset(pinfo, 0, sizeof(*pinfo));
2015 memcpy(mpp, mpath->mpp, ETH_ALEN);
2016
2017 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2018 }
2019
ieee80211_get_mpp(struct wiphy * wiphy,struct net_device * dev,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2020 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2021 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2022
2023 {
2024 struct ieee80211_sub_if_data *sdata;
2025 struct mesh_path *mpath;
2026
2027 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2028
2029 rcu_read_lock();
2030 mpath = mpp_path_lookup(sdata, dst);
2031 if (!mpath) {
2032 rcu_read_unlock();
2033 return -ENOENT;
2034 }
2035 memcpy(dst, mpath->dst, ETH_ALEN);
2036 mpp_set_pinfo(mpath, mpp, pinfo);
2037 rcu_read_unlock();
2038 return 0;
2039 }
2040
ieee80211_dump_mpp(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * dst,u8 * mpp,struct mpath_info * pinfo)2041 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2042 int idx, u8 *dst, u8 *mpp,
2043 struct mpath_info *pinfo)
2044 {
2045 struct ieee80211_sub_if_data *sdata;
2046 struct mesh_path *mpath;
2047
2048 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2049
2050 rcu_read_lock();
2051 mpath = mpp_path_lookup_by_idx(sdata, idx);
2052 if (!mpath) {
2053 rcu_read_unlock();
2054 return -ENOENT;
2055 }
2056 memcpy(dst, mpath->dst, ETH_ALEN);
2057 mpp_set_pinfo(mpath, mpp, pinfo);
2058 rcu_read_unlock();
2059 return 0;
2060 }
2061
ieee80211_get_mesh_config(struct wiphy * wiphy,struct net_device * dev,struct mesh_config * conf)2062 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2063 struct net_device *dev,
2064 struct mesh_config *conf)
2065 {
2066 struct ieee80211_sub_if_data *sdata;
2067 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2068
2069 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2070 return 0;
2071 }
2072
_chg_mesh_attr(enum nl80211_meshconf_params parm,u32 mask)2073 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2074 {
2075 return (mask >> (parm-1)) & 0x1;
2076 }
2077
copy_mesh_setup(struct ieee80211_if_mesh * ifmsh,const struct mesh_setup * setup)2078 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2079 const struct mesh_setup *setup)
2080 {
2081 u8 *new_ie;
2082 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2083 struct ieee80211_sub_if_data, u.mesh);
2084 int i;
2085
2086 /* allocate information elements */
2087 new_ie = NULL;
2088
2089 if (setup->ie_len) {
2090 new_ie = kmemdup(setup->ie, setup->ie_len,
2091 GFP_KERNEL);
2092 if (!new_ie)
2093 return -ENOMEM;
2094 }
2095 ifmsh->ie_len = setup->ie_len;
2096 ifmsh->ie = new_ie;
2097
2098 /* now copy the rest of the setup parameters */
2099 ifmsh->mesh_id_len = setup->mesh_id_len;
2100 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2101 ifmsh->mesh_sp_id = setup->sync_method;
2102 ifmsh->mesh_pp_id = setup->path_sel_proto;
2103 ifmsh->mesh_pm_id = setup->path_metric;
2104 ifmsh->user_mpm = setup->user_mpm;
2105 ifmsh->mesh_auth_id = setup->auth_id;
2106 ifmsh->security = IEEE80211_MESH_SEC_NONE;
2107 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2108 if (setup->is_authenticated)
2109 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2110 if (setup->is_secure)
2111 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2112
2113 /* mcast rate setting in Mesh Node */
2114 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2115 sizeof(setup->mcast_rate));
2116 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2117
2118 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2119 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2120
2121 sdata->beacon_rate_set = false;
2122 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2123 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2124 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2125 sdata->beacon_rateidx_mask[i] =
2126 setup->beacon_rate.control[i].legacy;
2127 if (sdata->beacon_rateidx_mask[i])
2128 sdata->beacon_rate_set = true;
2129 }
2130 }
2131
2132 return 0;
2133 }
2134
ieee80211_update_mesh_config(struct wiphy * wiphy,struct net_device * dev,u32 mask,const struct mesh_config * nconf)2135 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2136 struct net_device *dev, u32 mask,
2137 const struct mesh_config *nconf)
2138 {
2139 struct mesh_config *conf;
2140 struct ieee80211_sub_if_data *sdata;
2141 struct ieee80211_if_mesh *ifmsh;
2142
2143 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2144 ifmsh = &sdata->u.mesh;
2145
2146 /* Set the config options which we are interested in setting */
2147 conf = &(sdata->u.mesh.mshcfg);
2148 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2149 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2150 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2151 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2152 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2153 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2154 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2155 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2156 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2157 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2158 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2159 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2160 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2161 conf->element_ttl = nconf->element_ttl;
2162 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2163 if (ifmsh->user_mpm)
2164 return -EBUSY;
2165 conf->auto_open_plinks = nconf->auto_open_plinks;
2166 }
2167 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2168 conf->dot11MeshNbrOffsetMaxNeighbor =
2169 nconf->dot11MeshNbrOffsetMaxNeighbor;
2170 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2171 conf->dot11MeshHWMPmaxPREQretries =
2172 nconf->dot11MeshHWMPmaxPREQretries;
2173 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2174 conf->path_refresh_time = nconf->path_refresh_time;
2175 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2176 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2177 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2178 conf->dot11MeshHWMPactivePathTimeout =
2179 nconf->dot11MeshHWMPactivePathTimeout;
2180 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2181 conf->dot11MeshHWMPpreqMinInterval =
2182 nconf->dot11MeshHWMPpreqMinInterval;
2183 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2184 conf->dot11MeshHWMPperrMinInterval =
2185 nconf->dot11MeshHWMPperrMinInterval;
2186 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2187 mask))
2188 conf->dot11MeshHWMPnetDiameterTraversalTime =
2189 nconf->dot11MeshHWMPnetDiameterTraversalTime;
2190 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2191 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2192 ieee80211_mesh_root_setup(ifmsh);
2193 }
2194 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2195 /* our current gate announcement implementation rides on root
2196 * announcements, so require this ifmsh to also be a root node
2197 * */
2198 if (nconf->dot11MeshGateAnnouncementProtocol &&
2199 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2200 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2201 ieee80211_mesh_root_setup(ifmsh);
2202 }
2203 conf->dot11MeshGateAnnouncementProtocol =
2204 nconf->dot11MeshGateAnnouncementProtocol;
2205 }
2206 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2207 conf->dot11MeshHWMPRannInterval =
2208 nconf->dot11MeshHWMPRannInterval;
2209 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2210 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2211 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2212 /* our RSSI threshold implementation is supported only for
2213 * devices that report signal in dBm.
2214 */
2215 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2216 return -ENOTSUPP;
2217 conf->rssi_threshold = nconf->rssi_threshold;
2218 }
2219 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2220 conf->ht_opmode = nconf->ht_opmode;
2221 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2222 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2223 }
2224 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2225 conf->dot11MeshHWMPactivePathToRootTimeout =
2226 nconf->dot11MeshHWMPactivePathToRootTimeout;
2227 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2228 conf->dot11MeshHWMProotInterval =
2229 nconf->dot11MeshHWMProotInterval;
2230 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2231 conf->dot11MeshHWMPconfirmationInterval =
2232 nconf->dot11MeshHWMPconfirmationInterval;
2233 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2234 conf->power_mode = nconf->power_mode;
2235 ieee80211_mps_local_status_update(sdata);
2236 }
2237 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2238 conf->dot11MeshAwakeWindowDuration =
2239 nconf->dot11MeshAwakeWindowDuration;
2240 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2241 conf->plink_timeout = nconf->plink_timeout;
2242 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2243 conf->dot11MeshConnectedToMeshGate =
2244 nconf->dot11MeshConnectedToMeshGate;
2245 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2246 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2247 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2248 conf->dot11MeshConnectedToAuthServer =
2249 nconf->dot11MeshConnectedToAuthServer;
2250 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2251 return 0;
2252 }
2253
ieee80211_join_mesh(struct wiphy * wiphy,struct net_device * dev,const struct mesh_config * conf,const struct mesh_setup * setup)2254 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2255 const struct mesh_config *conf,
2256 const struct mesh_setup *setup)
2257 {
2258 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2259 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2260 int err;
2261
2262 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2263 err = copy_mesh_setup(ifmsh, setup);
2264 if (err)
2265 return err;
2266
2267 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2268
2269 /* can mesh use other SMPS modes? */
2270 sdata->smps_mode = IEEE80211_SMPS_OFF;
2271 sdata->needed_rx_chains = sdata->local->rx_chains;
2272
2273 mutex_lock(&sdata->local->mtx);
2274 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2275 IEEE80211_CHANCTX_SHARED);
2276 mutex_unlock(&sdata->local->mtx);
2277 if (err)
2278 return err;
2279
2280 return ieee80211_start_mesh(sdata);
2281 }
2282
ieee80211_leave_mesh(struct wiphy * wiphy,struct net_device * dev)2283 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2284 {
2285 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2286
2287 ieee80211_stop_mesh(sdata);
2288 mutex_lock(&sdata->local->mtx);
2289 ieee80211_vif_release_channel(sdata);
2290 kfree(sdata->u.mesh.ie);
2291 mutex_unlock(&sdata->local->mtx);
2292
2293 return 0;
2294 }
2295 #endif
2296
ieee80211_change_bss(struct wiphy * wiphy,struct net_device * dev,struct bss_parameters * params)2297 static int ieee80211_change_bss(struct wiphy *wiphy,
2298 struct net_device *dev,
2299 struct bss_parameters *params)
2300 {
2301 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2302 struct ieee80211_supported_band *sband;
2303 u32 changed = 0;
2304
2305 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2306 return -ENOENT;
2307
2308 sband = ieee80211_get_sband(sdata);
2309 if (!sband)
2310 return -EINVAL;
2311
2312 if (params->use_cts_prot >= 0) {
2313 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2314 changed |= BSS_CHANGED_ERP_CTS_PROT;
2315 }
2316 if (params->use_short_preamble >= 0) {
2317 sdata->vif.bss_conf.use_short_preamble =
2318 params->use_short_preamble;
2319 changed |= BSS_CHANGED_ERP_PREAMBLE;
2320 }
2321
2322 if (!sdata->vif.bss_conf.use_short_slot &&
2323 (sband->band == NL80211_BAND_5GHZ ||
2324 sband->band == NL80211_BAND_6GHZ)) {
2325 sdata->vif.bss_conf.use_short_slot = true;
2326 changed |= BSS_CHANGED_ERP_SLOT;
2327 }
2328
2329 if (params->use_short_slot_time >= 0) {
2330 sdata->vif.bss_conf.use_short_slot =
2331 params->use_short_slot_time;
2332 changed |= BSS_CHANGED_ERP_SLOT;
2333 }
2334
2335 if (params->basic_rates) {
2336 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2337 wiphy->bands[sband->band],
2338 params->basic_rates,
2339 params->basic_rates_len,
2340 &sdata->vif.bss_conf.basic_rates);
2341 changed |= BSS_CHANGED_BASIC_RATES;
2342 ieee80211_check_rate_mask(sdata);
2343 }
2344
2345 if (params->ap_isolate >= 0) {
2346 if (params->ap_isolate)
2347 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2348 else
2349 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2350 ieee80211_check_fast_rx_iface(sdata);
2351 }
2352
2353 if (params->ht_opmode >= 0) {
2354 sdata->vif.bss_conf.ht_operation_mode =
2355 (u16) params->ht_opmode;
2356 changed |= BSS_CHANGED_HT;
2357 }
2358
2359 if (params->p2p_ctwindow >= 0) {
2360 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2361 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2362 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2363 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2364 changed |= BSS_CHANGED_P2P_PS;
2365 }
2366
2367 if (params->p2p_opp_ps > 0) {
2368 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2369 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2370 changed |= BSS_CHANGED_P2P_PS;
2371 } else if (params->p2p_opp_ps == 0) {
2372 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2373 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2374 changed |= BSS_CHANGED_P2P_PS;
2375 }
2376
2377 ieee80211_bss_info_change_notify(sdata, changed);
2378
2379 return 0;
2380 }
2381
ieee80211_set_txq_params(struct wiphy * wiphy,struct net_device * dev,struct ieee80211_txq_params * params)2382 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2383 struct net_device *dev,
2384 struct ieee80211_txq_params *params)
2385 {
2386 struct ieee80211_local *local = wiphy_priv(wiphy);
2387 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2388 struct ieee80211_tx_queue_params p;
2389
2390 if (!local->ops->conf_tx)
2391 return -EOPNOTSUPP;
2392
2393 if (local->hw.queues < IEEE80211_NUM_ACS)
2394 return -EOPNOTSUPP;
2395
2396 memset(&p, 0, sizeof(p));
2397 p.aifs = params->aifs;
2398 p.cw_max = params->cwmax;
2399 p.cw_min = params->cwmin;
2400 p.txop = params->txop;
2401
2402 /*
2403 * Setting tx queue params disables u-apsd because it's only
2404 * called in master mode.
2405 */
2406 p.uapsd = false;
2407
2408 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2409
2410 sdata->tx_conf[params->ac] = p;
2411 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2412 wiphy_debug(local->hw.wiphy,
2413 "failed to set TX queue parameters for AC %d\n",
2414 params->ac);
2415 return -EINVAL;
2416 }
2417
2418 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2419
2420 return 0;
2421 }
2422
2423 #ifdef CONFIG_PM
ieee80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)2424 static int ieee80211_suspend(struct wiphy *wiphy,
2425 struct cfg80211_wowlan *wowlan)
2426 {
2427 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2428 }
2429
ieee80211_resume(struct wiphy * wiphy)2430 static int ieee80211_resume(struct wiphy *wiphy)
2431 {
2432 return __ieee80211_resume(wiphy_priv(wiphy));
2433 }
2434 #else
2435 #define ieee80211_suspend NULL
2436 #define ieee80211_resume NULL
2437 #endif
2438
ieee80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * req)2439 static int ieee80211_scan(struct wiphy *wiphy,
2440 struct cfg80211_scan_request *req)
2441 {
2442 struct ieee80211_sub_if_data *sdata;
2443
2444 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2445
2446 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2447 case NL80211_IFTYPE_STATION:
2448 case NL80211_IFTYPE_ADHOC:
2449 case NL80211_IFTYPE_MESH_POINT:
2450 case NL80211_IFTYPE_P2P_CLIENT:
2451 case NL80211_IFTYPE_P2P_DEVICE:
2452 break;
2453 case NL80211_IFTYPE_P2P_GO:
2454 if (sdata->local->ops->hw_scan)
2455 break;
2456 /*
2457 * FIXME: implement NoA while scanning in software,
2458 * for now fall through to allow scanning only when
2459 * beaconing hasn't been configured yet
2460 */
2461 fallthrough;
2462 case NL80211_IFTYPE_AP:
2463 /*
2464 * If the scan has been forced (and the driver supports
2465 * forcing), don't care about being beaconing already.
2466 * This will create problems to the attached stations (e.g. all
2467 * the frames sent while scanning on other channel will be
2468 * lost)
2469 */
2470 if (sdata->u.ap.beacon &&
2471 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2472 !(req->flags & NL80211_SCAN_FLAG_AP)))
2473 return -EOPNOTSUPP;
2474 break;
2475 case NL80211_IFTYPE_NAN:
2476 default:
2477 return -EOPNOTSUPP;
2478 }
2479
2480 return ieee80211_request_scan(sdata, req);
2481 }
2482
ieee80211_abort_scan(struct wiphy * wiphy,struct wireless_dev * wdev)2483 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2484 {
2485 ieee80211_scan_cancel(wiphy_priv(wiphy));
2486 }
2487
2488 static int
ieee80211_sched_scan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * req)2489 ieee80211_sched_scan_start(struct wiphy *wiphy,
2490 struct net_device *dev,
2491 struct cfg80211_sched_scan_request *req)
2492 {
2493 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2494
2495 if (!sdata->local->ops->sched_scan_start)
2496 return -EOPNOTSUPP;
2497
2498 return ieee80211_request_sched_scan_start(sdata, req);
2499 }
2500
2501 static int
ieee80211_sched_scan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)2502 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2503 u64 reqid)
2504 {
2505 struct ieee80211_local *local = wiphy_priv(wiphy);
2506
2507 if (!local->ops->sched_scan_stop)
2508 return -EOPNOTSUPP;
2509
2510 return ieee80211_request_sched_scan_stop(local);
2511 }
2512
ieee80211_auth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_auth_request * req)2513 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2514 struct cfg80211_auth_request *req)
2515 {
2516 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2517 }
2518
ieee80211_assoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_assoc_request * req)2519 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2520 struct cfg80211_assoc_request *req)
2521 {
2522 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2523 }
2524
ieee80211_deauth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_deauth_request * req)2525 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2526 struct cfg80211_deauth_request *req)
2527 {
2528 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2529 }
2530
ieee80211_disassoc(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_disassoc_request * req)2531 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2532 struct cfg80211_disassoc_request *req)
2533 {
2534 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2535 }
2536
ieee80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2537 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2538 struct cfg80211_ibss_params *params)
2539 {
2540 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2541 }
2542
ieee80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2543 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2544 {
2545 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2546 }
2547
ieee80211_join_ocb(struct wiphy * wiphy,struct net_device * dev,struct ocb_setup * setup)2548 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2549 struct ocb_setup *setup)
2550 {
2551 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2552 }
2553
ieee80211_leave_ocb(struct wiphy * wiphy,struct net_device * dev)2554 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2555 {
2556 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2557 }
2558
ieee80211_set_mcast_rate(struct wiphy * wiphy,struct net_device * dev,int rate[NUM_NL80211_BANDS])2559 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2560 int rate[NUM_NL80211_BANDS])
2561 {
2562 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2563
2564 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2565 sizeof(int) * NUM_NL80211_BANDS);
2566
2567 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2568
2569 return 0;
2570 }
2571
ieee80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)2572 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2573 {
2574 struct ieee80211_local *local = wiphy_priv(wiphy);
2575 int err;
2576
2577 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2578 ieee80211_check_fast_xmit_all(local);
2579
2580 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2581
2582 if (err) {
2583 ieee80211_check_fast_xmit_all(local);
2584 return err;
2585 }
2586 }
2587
2588 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2589 (changed & WIPHY_PARAM_DYN_ACK)) {
2590 s16 coverage_class;
2591
2592 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2593 wiphy->coverage_class : -1;
2594 err = drv_set_coverage_class(local, coverage_class);
2595
2596 if (err)
2597 return err;
2598 }
2599
2600 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2601 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2602
2603 if (err)
2604 return err;
2605 }
2606
2607 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2608 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2609 return -EINVAL;
2610 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2611 }
2612 if (changed & WIPHY_PARAM_RETRY_LONG) {
2613 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2614 return -EINVAL;
2615 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2616 }
2617 if (changed &
2618 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2619 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2620
2621 if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2622 WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2623 WIPHY_PARAM_TXQ_QUANTUM))
2624 ieee80211_txq_set_params(local);
2625
2626 return 0;
2627 }
2628
ieee80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)2629 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2630 struct wireless_dev *wdev,
2631 enum nl80211_tx_power_setting type, int mbm)
2632 {
2633 struct ieee80211_local *local = wiphy_priv(wiphy);
2634 struct ieee80211_sub_if_data *sdata;
2635 enum nl80211_tx_power_setting txp_type = type;
2636 bool update_txp_type = false;
2637 bool has_monitor = false;
2638
2639 if (wdev) {
2640 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2641
2642 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2643 sdata = rtnl_dereference(local->monitor_sdata);
2644 if (!sdata)
2645 return -EOPNOTSUPP;
2646 }
2647
2648 switch (type) {
2649 case NL80211_TX_POWER_AUTOMATIC:
2650 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2651 txp_type = NL80211_TX_POWER_LIMITED;
2652 break;
2653 case NL80211_TX_POWER_LIMITED:
2654 case NL80211_TX_POWER_FIXED:
2655 if (mbm < 0 || (mbm % 100))
2656 return -EOPNOTSUPP;
2657 sdata->user_power_level = MBM_TO_DBM(mbm);
2658 break;
2659 }
2660
2661 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2662 update_txp_type = true;
2663 sdata->vif.bss_conf.txpower_type = txp_type;
2664 }
2665
2666 ieee80211_recalc_txpower(sdata, update_txp_type);
2667
2668 return 0;
2669 }
2670
2671 switch (type) {
2672 case NL80211_TX_POWER_AUTOMATIC:
2673 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2674 txp_type = NL80211_TX_POWER_LIMITED;
2675 break;
2676 case NL80211_TX_POWER_LIMITED:
2677 case NL80211_TX_POWER_FIXED:
2678 if (mbm < 0 || (mbm % 100))
2679 return -EOPNOTSUPP;
2680 local->user_power_level = MBM_TO_DBM(mbm);
2681 break;
2682 }
2683
2684 mutex_lock(&local->iflist_mtx);
2685 list_for_each_entry(sdata, &local->interfaces, list) {
2686 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2687 has_monitor = true;
2688 continue;
2689 }
2690 sdata->user_power_level = local->user_power_level;
2691 if (txp_type != sdata->vif.bss_conf.txpower_type)
2692 update_txp_type = true;
2693 sdata->vif.bss_conf.txpower_type = txp_type;
2694 }
2695 list_for_each_entry(sdata, &local->interfaces, list) {
2696 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2697 continue;
2698 ieee80211_recalc_txpower(sdata, update_txp_type);
2699 }
2700 mutex_unlock(&local->iflist_mtx);
2701
2702 if (has_monitor) {
2703 sdata = rtnl_dereference(local->monitor_sdata);
2704 if (sdata) {
2705 sdata->user_power_level = local->user_power_level;
2706 if (txp_type != sdata->vif.bss_conf.txpower_type)
2707 update_txp_type = true;
2708 sdata->vif.bss_conf.txpower_type = txp_type;
2709
2710 ieee80211_recalc_txpower(sdata, update_txp_type);
2711 }
2712 }
2713
2714 return 0;
2715 }
2716
ieee80211_get_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,int * dbm)2717 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2718 struct wireless_dev *wdev,
2719 int *dbm)
2720 {
2721 struct ieee80211_local *local = wiphy_priv(wiphy);
2722 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2723
2724 if (local->ops->get_txpower)
2725 return drv_get_txpower(local, sdata, dbm);
2726
2727 if (!local->use_chanctx)
2728 *dbm = local->hw.conf.power_level;
2729 else
2730 *dbm = sdata->vif.bss_conf.txpower;
2731
2732 return 0;
2733 }
2734
ieee80211_set_wds_peer(struct wiphy * wiphy,struct net_device * dev,const u8 * addr)2735 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2736 const u8 *addr)
2737 {
2738 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2739
2740 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2741
2742 return 0;
2743 }
2744
ieee80211_rfkill_poll(struct wiphy * wiphy)2745 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2746 {
2747 struct ieee80211_local *local = wiphy_priv(wiphy);
2748
2749 drv_rfkill_poll(local);
2750 }
2751
2752 #ifdef CONFIG_NL80211_TESTMODE
ieee80211_testmode_cmd(struct wiphy * wiphy,struct wireless_dev * wdev,void * data,int len)2753 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2754 struct wireless_dev *wdev,
2755 void *data, int len)
2756 {
2757 struct ieee80211_local *local = wiphy_priv(wiphy);
2758 struct ieee80211_vif *vif = NULL;
2759
2760 if (!local->ops->testmode_cmd)
2761 return -EOPNOTSUPP;
2762
2763 if (wdev) {
2764 struct ieee80211_sub_if_data *sdata;
2765
2766 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2767 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2768 vif = &sdata->vif;
2769 }
2770
2771 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2772 }
2773
ieee80211_testmode_dump(struct wiphy * wiphy,struct sk_buff * skb,struct netlink_callback * cb,void * data,int len)2774 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2775 struct sk_buff *skb,
2776 struct netlink_callback *cb,
2777 void *data, int len)
2778 {
2779 struct ieee80211_local *local = wiphy_priv(wiphy);
2780
2781 if (!local->ops->testmode_dump)
2782 return -EOPNOTSUPP;
2783
2784 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2785 }
2786 #endif
2787
__ieee80211_request_smps_mgd(struct ieee80211_sub_if_data * sdata,enum ieee80211_smps_mode smps_mode)2788 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2789 enum ieee80211_smps_mode smps_mode)
2790 {
2791 const u8 *ap;
2792 enum ieee80211_smps_mode old_req;
2793 int err;
2794 struct sta_info *sta;
2795 bool tdls_peer_found = false;
2796
2797 lockdep_assert_held(&sdata->wdev.mtx);
2798
2799 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2800 return -EINVAL;
2801
2802 old_req = sdata->u.mgd.req_smps;
2803 sdata->u.mgd.req_smps = smps_mode;
2804
2805 if (old_req == smps_mode &&
2806 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2807 return 0;
2808
2809 /*
2810 * If not associated, or current association is not an HT
2811 * association, there's no need to do anything, just store
2812 * the new value until we associate.
2813 */
2814 if (!sdata->u.mgd.associated ||
2815 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2816 return 0;
2817
2818 ap = sdata->u.mgd.associated->bssid;
2819
2820 rcu_read_lock();
2821 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2822 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2823 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2824 continue;
2825
2826 tdls_peer_found = true;
2827 break;
2828 }
2829 rcu_read_unlock();
2830
2831 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2832 if (tdls_peer_found || !sdata->u.mgd.powersave)
2833 smps_mode = IEEE80211_SMPS_OFF;
2834 else
2835 smps_mode = IEEE80211_SMPS_DYNAMIC;
2836 }
2837
2838 /* send SM PS frame to AP */
2839 err = ieee80211_send_smps_action(sdata, smps_mode,
2840 ap, ap);
2841 if (err)
2842 sdata->u.mgd.req_smps = old_req;
2843 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2844 ieee80211_teardown_tdls_peers(sdata);
2845
2846 return err;
2847 }
2848
ieee80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)2849 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2850 bool enabled, int timeout)
2851 {
2852 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2853 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2854
2855 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2856 return -EOPNOTSUPP;
2857
2858 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2859 return -EOPNOTSUPP;
2860
2861 if (enabled == sdata->u.mgd.powersave &&
2862 timeout == local->dynamic_ps_forced_timeout)
2863 return 0;
2864
2865 sdata->u.mgd.powersave = enabled;
2866 local->dynamic_ps_forced_timeout = timeout;
2867
2868 /* no change, but if automatic follow powersave */
2869 sdata_lock(sdata);
2870 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2871 sdata_unlock(sdata);
2872
2873 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2874 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2875
2876 ieee80211_recalc_ps(local);
2877 ieee80211_recalc_ps_vif(sdata);
2878 ieee80211_check_fast_rx_iface(sdata);
2879
2880 return 0;
2881 }
2882
ieee80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)2883 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2884 struct net_device *dev,
2885 s32 rssi_thold, u32 rssi_hyst)
2886 {
2887 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2888 struct ieee80211_vif *vif = &sdata->vif;
2889 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2890
2891 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2892 rssi_hyst == bss_conf->cqm_rssi_hyst)
2893 return 0;
2894
2895 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2896 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2897 return -EOPNOTSUPP;
2898
2899 bss_conf->cqm_rssi_thold = rssi_thold;
2900 bss_conf->cqm_rssi_hyst = rssi_hyst;
2901 bss_conf->cqm_rssi_low = 0;
2902 bss_conf->cqm_rssi_high = 0;
2903 sdata->u.mgd.last_cqm_event_signal = 0;
2904
2905 /* tell the driver upon association, unless already associated */
2906 if (sdata->u.mgd.associated &&
2907 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2908 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2909
2910 return 0;
2911 }
2912
ieee80211_set_cqm_rssi_range_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_low,s32 rssi_high)2913 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2914 struct net_device *dev,
2915 s32 rssi_low, s32 rssi_high)
2916 {
2917 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2918 struct ieee80211_vif *vif = &sdata->vif;
2919 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2920
2921 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2922 return -EOPNOTSUPP;
2923
2924 bss_conf->cqm_rssi_low = rssi_low;
2925 bss_conf->cqm_rssi_high = rssi_high;
2926 bss_conf->cqm_rssi_thold = 0;
2927 bss_conf->cqm_rssi_hyst = 0;
2928 sdata->u.mgd.last_cqm_event_signal = 0;
2929
2930 /* tell the driver upon association, unless already associated */
2931 if (sdata->u.mgd.associated &&
2932 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2933 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2934
2935 return 0;
2936 }
2937
ieee80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,const u8 * addr,const struct cfg80211_bitrate_mask * mask)2938 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2939 struct net_device *dev,
2940 const u8 *addr,
2941 const struct cfg80211_bitrate_mask *mask)
2942 {
2943 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2944 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2945 int i, ret;
2946
2947 if (!ieee80211_sdata_running(sdata))
2948 return -ENETDOWN;
2949
2950 /*
2951 * If active validate the setting and reject it if it doesn't leave
2952 * at least one basic rate usable, since we really have to be able
2953 * to send something, and if we're an AP we have to be able to do
2954 * so at a basic rate so that all clients can receive it.
2955 */
2956 if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2957 sdata->vif.bss_conf.chandef.chan) {
2958 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2959 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2960
2961 if (!(mask->control[band].legacy & basic_rates))
2962 return -EINVAL;
2963 }
2964
2965 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2966 ret = drv_set_bitrate_mask(local, sdata, mask);
2967 if (ret)
2968 return ret;
2969 }
2970
2971 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2972 struct ieee80211_supported_band *sband = wiphy->bands[i];
2973 int j;
2974
2975 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2976 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2977 sizeof(mask->control[i].ht_mcs));
2978 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2979 mask->control[i].vht_mcs,
2980 sizeof(mask->control[i].vht_mcs));
2981
2982 sdata->rc_has_mcs_mask[i] = false;
2983 sdata->rc_has_vht_mcs_mask[i] = false;
2984 if (!sband)
2985 continue;
2986
2987 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2988 if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
2989 sdata->rc_has_mcs_mask[i] = true;
2990 break;
2991 }
2992 }
2993
2994 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2995 if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
2996 sdata->rc_has_vht_mcs_mask[i] = true;
2997 break;
2998 }
2999 }
3000 }
3001
3002 return 0;
3003 }
3004
ieee80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3005 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3006 struct net_device *dev,
3007 struct cfg80211_chan_def *chandef,
3008 u32 cac_time_ms)
3009 {
3010 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3011 struct ieee80211_local *local = sdata->local;
3012 int err;
3013
3014 mutex_lock(&local->mtx);
3015 if (!list_empty(&local->roc_list) || local->scanning) {
3016 err = -EBUSY;
3017 goto out_unlock;
3018 }
3019
3020 /* whatever, but channel contexts should not complain about that one */
3021 sdata->smps_mode = IEEE80211_SMPS_OFF;
3022 sdata->needed_rx_chains = local->rx_chains;
3023
3024 err = ieee80211_vif_use_channel(sdata, chandef,
3025 IEEE80211_CHANCTX_SHARED);
3026 if (err)
3027 goto out_unlock;
3028
3029 ieee80211_queue_delayed_work(&sdata->local->hw,
3030 &sdata->dfs_cac_timer_work,
3031 msecs_to_jiffies(cac_time_ms));
3032
3033 out_unlock:
3034 mutex_unlock(&local->mtx);
3035 return err;
3036 }
3037
ieee80211_end_cac(struct wiphy * wiphy,struct net_device * dev)3038 static void ieee80211_end_cac(struct wiphy *wiphy,
3039 struct net_device *dev)
3040 {
3041 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3042 struct ieee80211_local *local = sdata->local;
3043
3044 mutex_lock(&local->mtx);
3045 list_for_each_entry(sdata, &local->interfaces, list) {
3046 /* it might be waiting for the local->mtx, but then
3047 * by the time it gets it, sdata->wdev.cac_started
3048 * will no longer be true
3049 */
3050 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3051
3052 if (sdata->wdev.cac_started) {
3053 ieee80211_vif_release_channel(sdata);
3054 sdata->wdev.cac_started = false;
3055 }
3056 }
3057 mutex_unlock(&local->mtx);
3058 }
3059
3060 static struct cfg80211_beacon_data *
cfg80211_beacon_dup(struct cfg80211_beacon_data * beacon)3061 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3062 {
3063 struct cfg80211_beacon_data *new_beacon;
3064 u8 *pos;
3065 int len;
3066
3067 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3068 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3069 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3070
3071 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3072 if (!new_beacon)
3073 return NULL;
3074
3075 pos = (u8 *)(new_beacon + 1);
3076 if (beacon->head_len) {
3077 new_beacon->head_len = beacon->head_len;
3078 new_beacon->head = pos;
3079 memcpy(pos, beacon->head, beacon->head_len);
3080 pos += beacon->head_len;
3081 }
3082 if (beacon->tail_len) {
3083 new_beacon->tail_len = beacon->tail_len;
3084 new_beacon->tail = pos;
3085 memcpy(pos, beacon->tail, beacon->tail_len);
3086 pos += beacon->tail_len;
3087 }
3088 if (beacon->beacon_ies_len) {
3089 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3090 new_beacon->beacon_ies = pos;
3091 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3092 pos += beacon->beacon_ies_len;
3093 }
3094 if (beacon->proberesp_ies_len) {
3095 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3096 new_beacon->proberesp_ies = pos;
3097 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3098 pos += beacon->proberesp_ies_len;
3099 }
3100 if (beacon->assocresp_ies_len) {
3101 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3102 new_beacon->assocresp_ies = pos;
3103 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3104 pos += beacon->assocresp_ies_len;
3105 }
3106 if (beacon->probe_resp_len) {
3107 new_beacon->probe_resp_len = beacon->probe_resp_len;
3108 new_beacon->probe_resp = pos;
3109 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3110 pos += beacon->probe_resp_len;
3111 }
3112
3113 /* might copy -1, meaning no changes requested */
3114 new_beacon->ftm_responder = beacon->ftm_responder;
3115 if (beacon->lci) {
3116 new_beacon->lci_len = beacon->lci_len;
3117 new_beacon->lci = pos;
3118 memcpy(pos, beacon->lci, beacon->lci_len);
3119 pos += beacon->lci_len;
3120 }
3121 if (beacon->civicloc) {
3122 new_beacon->civicloc_len = beacon->civicloc_len;
3123 new_beacon->civicloc = pos;
3124 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3125 pos += beacon->civicloc_len;
3126 }
3127
3128 return new_beacon;
3129 }
3130
ieee80211_csa_finish(struct ieee80211_vif * vif)3131 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3132 {
3133 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3134
3135 ieee80211_queue_work(&sdata->local->hw,
3136 &sdata->csa_finalize_work);
3137 }
3138 EXPORT_SYMBOL(ieee80211_csa_finish);
3139
ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data * sdata,u32 * changed)3140 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3141 u32 *changed)
3142 {
3143 int err;
3144
3145 switch (sdata->vif.type) {
3146 case NL80211_IFTYPE_AP:
3147 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3148 NULL);
3149 kfree(sdata->u.ap.next_beacon);
3150 sdata->u.ap.next_beacon = NULL;
3151
3152 if (err < 0)
3153 return err;
3154 *changed |= err;
3155 break;
3156 case NL80211_IFTYPE_ADHOC:
3157 err = ieee80211_ibss_finish_csa(sdata);
3158 if (err < 0)
3159 return err;
3160 *changed |= err;
3161 break;
3162 #ifdef CONFIG_MAC80211_MESH
3163 case NL80211_IFTYPE_MESH_POINT:
3164 err = ieee80211_mesh_finish_csa(sdata);
3165 if (err < 0)
3166 return err;
3167 *changed |= err;
3168 break;
3169 #endif
3170 default:
3171 WARN_ON(1);
3172 return -EINVAL;
3173 }
3174
3175 return 0;
3176 }
3177
__ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3178 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3179 {
3180 struct ieee80211_local *local = sdata->local;
3181 u32 changed = 0;
3182 int err;
3183
3184 sdata_assert_lock(sdata);
3185 lockdep_assert_held(&local->mtx);
3186 lockdep_assert_held(&local->chanctx_mtx);
3187
3188 /*
3189 * using reservation isn't immediate as it may be deferred until later
3190 * with multi-vif. once reservation is complete it will re-schedule the
3191 * work with no reserved_chanctx so verify chandef to check if it
3192 * completed successfully
3193 */
3194
3195 if (sdata->reserved_chanctx) {
3196 /*
3197 * with multi-vif csa driver may call ieee80211_csa_finish()
3198 * many times while waiting for other interfaces to use their
3199 * reservations
3200 */
3201 if (sdata->reserved_ready)
3202 return 0;
3203
3204 return ieee80211_vif_use_reserved_context(sdata);
3205 }
3206
3207 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3208 &sdata->csa_chandef))
3209 return -EINVAL;
3210
3211 sdata->vif.csa_active = false;
3212
3213 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3214 if (err)
3215 return err;
3216
3217 ieee80211_bss_info_change_notify(sdata, changed);
3218
3219 if (sdata->csa_block_tx) {
3220 ieee80211_wake_vif_queues(local, sdata,
3221 IEEE80211_QUEUE_STOP_REASON_CSA);
3222 sdata->csa_block_tx = false;
3223 }
3224
3225 err = drv_post_channel_switch(sdata);
3226 if (err)
3227 return err;
3228
3229 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3230
3231 return 0;
3232 }
3233
ieee80211_csa_finalize(struct ieee80211_sub_if_data * sdata)3234 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3235 {
3236 if (__ieee80211_csa_finalize(sdata)) {
3237 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3238 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3239 GFP_KERNEL);
3240 }
3241 }
3242
ieee80211_csa_finalize_work(struct work_struct * work)3243 void ieee80211_csa_finalize_work(struct work_struct *work)
3244 {
3245 struct ieee80211_sub_if_data *sdata =
3246 container_of(work, struct ieee80211_sub_if_data,
3247 csa_finalize_work);
3248 struct ieee80211_local *local = sdata->local;
3249
3250 sdata_lock(sdata);
3251 mutex_lock(&local->mtx);
3252 mutex_lock(&local->chanctx_mtx);
3253
3254 /* AP might have been stopped while waiting for the lock. */
3255 if (!sdata->vif.csa_active)
3256 goto unlock;
3257
3258 if (!ieee80211_sdata_running(sdata))
3259 goto unlock;
3260
3261 ieee80211_csa_finalize(sdata);
3262
3263 unlock:
3264 mutex_unlock(&local->chanctx_mtx);
3265 mutex_unlock(&local->mtx);
3266 sdata_unlock(sdata);
3267 }
3268
ieee80211_set_csa_beacon(struct ieee80211_sub_if_data * sdata,struct cfg80211_csa_settings * params,u32 * changed)3269 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3270 struct cfg80211_csa_settings *params,
3271 u32 *changed)
3272 {
3273 struct ieee80211_csa_settings csa = {};
3274 int err;
3275
3276 switch (sdata->vif.type) {
3277 case NL80211_IFTYPE_AP:
3278 sdata->u.ap.next_beacon =
3279 cfg80211_beacon_dup(¶ms->beacon_after);
3280 if (!sdata->u.ap.next_beacon)
3281 return -ENOMEM;
3282
3283 /*
3284 * With a count of 0, we don't have to wait for any
3285 * TBTT before switching, so complete the CSA
3286 * immediately. In theory, with a count == 1 we
3287 * should delay the switch until just before the next
3288 * TBTT, but that would complicate things so we switch
3289 * immediately too. If we would delay the switch
3290 * until the next TBTT, we would have to set the probe
3291 * response here.
3292 *
3293 * TODO: A channel switch with count <= 1 without
3294 * sending a CSA action frame is kind of useless,
3295 * because the clients won't know we're changing
3296 * channels. The action frame must be implemented
3297 * either here or in the userspace.
3298 */
3299 if (params->count <= 1)
3300 break;
3301
3302 if ((params->n_counter_offsets_beacon >
3303 IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3304 (params->n_counter_offsets_presp >
3305 IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3306 return -EINVAL;
3307
3308 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3309 csa.counter_offsets_presp = params->counter_offsets_presp;
3310 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3311 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3312 csa.count = params->count;
3313
3314 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa);
3315 if (err < 0) {
3316 kfree(sdata->u.ap.next_beacon);
3317 return err;
3318 }
3319 *changed |= err;
3320
3321 break;
3322 case NL80211_IFTYPE_ADHOC:
3323 if (!sdata->vif.bss_conf.ibss_joined)
3324 return -EINVAL;
3325
3326 if (params->chandef.width != sdata->u.ibss.chandef.width)
3327 return -EINVAL;
3328
3329 switch (params->chandef.width) {
3330 case NL80211_CHAN_WIDTH_40:
3331 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3332 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3333 return -EINVAL;
3334 case NL80211_CHAN_WIDTH_5:
3335 case NL80211_CHAN_WIDTH_10:
3336 case NL80211_CHAN_WIDTH_20_NOHT:
3337 case NL80211_CHAN_WIDTH_20:
3338 break;
3339 default:
3340 return -EINVAL;
3341 }
3342
3343 /* changes into another band are not supported */
3344 if (sdata->u.ibss.chandef.chan->band !=
3345 params->chandef.chan->band)
3346 return -EINVAL;
3347
3348 /* see comments in the NL80211_IFTYPE_AP block */
3349 if (params->count > 1) {
3350 err = ieee80211_ibss_csa_beacon(sdata, params);
3351 if (err < 0)
3352 return err;
3353 *changed |= err;
3354 }
3355
3356 ieee80211_send_action_csa(sdata, params);
3357
3358 break;
3359 #ifdef CONFIG_MAC80211_MESH
3360 case NL80211_IFTYPE_MESH_POINT: {
3361 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3362
3363 /* changes into another band are not supported */
3364 if (sdata->vif.bss_conf.chandef.chan->band !=
3365 params->chandef.chan->band)
3366 return -EINVAL;
3367
3368 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3369 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3370 if (!ifmsh->pre_value)
3371 ifmsh->pre_value = 1;
3372 else
3373 ifmsh->pre_value++;
3374 }
3375
3376 /* see comments in the NL80211_IFTYPE_AP block */
3377 if (params->count > 1) {
3378 err = ieee80211_mesh_csa_beacon(sdata, params);
3379 if (err < 0) {
3380 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3381 return err;
3382 }
3383 *changed |= err;
3384 }
3385
3386 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3387 ieee80211_send_action_csa(sdata, params);
3388
3389 break;
3390 }
3391 #endif
3392 default:
3393 return -EOPNOTSUPP;
3394 }
3395
3396 return 0;
3397 }
3398
3399 static int
__ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3400 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3401 struct cfg80211_csa_settings *params)
3402 {
3403 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3404 struct ieee80211_local *local = sdata->local;
3405 struct ieee80211_channel_switch ch_switch;
3406 struct ieee80211_chanctx_conf *conf;
3407 struct ieee80211_chanctx *chanctx;
3408 u32 changed = 0;
3409 int err;
3410
3411 sdata_assert_lock(sdata);
3412 lockdep_assert_held(&local->mtx);
3413
3414 if (!list_empty(&local->roc_list) || local->scanning)
3415 return -EBUSY;
3416
3417 if (sdata->wdev.cac_started)
3418 return -EBUSY;
3419
3420 if (cfg80211_chandef_identical(¶ms->chandef,
3421 &sdata->vif.bss_conf.chandef))
3422 return -EINVAL;
3423
3424 /* don't allow another channel switch if one is already active. */
3425 if (sdata->vif.csa_active)
3426 return -EBUSY;
3427
3428 mutex_lock(&local->chanctx_mtx);
3429 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3430 lockdep_is_held(&local->chanctx_mtx));
3431 if (!conf) {
3432 err = -EBUSY;
3433 goto out;
3434 }
3435
3436 if (params->chandef.chan->freq_offset) {
3437 /* this may work, but is untested */
3438 err = -EOPNOTSUPP;
3439 goto out;
3440 }
3441
3442 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3443
3444 ch_switch.timestamp = 0;
3445 ch_switch.device_timestamp = 0;
3446 ch_switch.block_tx = params->block_tx;
3447 ch_switch.chandef = params->chandef;
3448 ch_switch.count = params->count;
3449
3450 err = drv_pre_channel_switch(sdata, &ch_switch);
3451 if (err)
3452 goto out;
3453
3454 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef,
3455 chanctx->mode,
3456 params->radar_required);
3457 if (err)
3458 goto out;
3459
3460 /* if reservation is invalid then this will fail */
3461 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3462 if (err) {
3463 ieee80211_vif_unreserve_chanctx(sdata);
3464 goto out;
3465 }
3466
3467 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3468 if (err) {
3469 ieee80211_vif_unreserve_chanctx(sdata);
3470 goto out;
3471 }
3472
3473 sdata->csa_chandef = params->chandef;
3474 sdata->csa_block_tx = params->block_tx;
3475 sdata->vif.csa_active = true;
3476
3477 if (sdata->csa_block_tx)
3478 ieee80211_stop_vif_queues(local, sdata,
3479 IEEE80211_QUEUE_STOP_REASON_CSA);
3480
3481 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3482 params->count);
3483
3484 if (changed) {
3485 ieee80211_bss_info_change_notify(sdata, changed);
3486 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3487 } else {
3488 /* if the beacon didn't change, we can finalize immediately */
3489 ieee80211_csa_finalize(sdata);
3490 }
3491
3492 out:
3493 mutex_unlock(&local->chanctx_mtx);
3494 return err;
3495 }
3496
ieee80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3497 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3498 struct cfg80211_csa_settings *params)
3499 {
3500 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3501 struct ieee80211_local *local = sdata->local;
3502 int err;
3503
3504 mutex_lock(&local->mtx);
3505 err = __ieee80211_channel_switch(wiphy, dev, params);
3506 mutex_unlock(&local->mtx);
3507
3508 return err;
3509 }
3510
ieee80211_mgmt_tx_cookie(struct ieee80211_local * local)3511 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3512 {
3513 lockdep_assert_held(&local->mtx);
3514
3515 local->roc_cookie_counter++;
3516
3517 /* wow, you wrapped 64 bits ... more likely a bug */
3518 if (WARN_ON(local->roc_cookie_counter == 0))
3519 local->roc_cookie_counter++;
3520
3521 return local->roc_cookie_counter;
3522 }
3523
ieee80211_attach_ack_skb(struct ieee80211_local * local,struct sk_buff * skb,u64 * cookie,gfp_t gfp)3524 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3525 u64 *cookie, gfp_t gfp)
3526 {
3527 unsigned long spin_flags;
3528 struct sk_buff *ack_skb;
3529 int id;
3530
3531 ack_skb = skb_copy(skb, gfp);
3532 if (!ack_skb)
3533 return -ENOMEM;
3534
3535 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3536 id = idr_alloc(&local->ack_status_frames, ack_skb,
3537 1, 0x2000, GFP_ATOMIC);
3538 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3539
3540 if (id < 0) {
3541 kfree_skb(ack_skb);
3542 return -ENOMEM;
3543 }
3544
3545 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3546
3547 *cookie = ieee80211_mgmt_tx_cookie(local);
3548 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3549
3550 return 0;
3551 }
3552
3553 static void
ieee80211_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)3554 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3555 struct wireless_dev *wdev,
3556 struct mgmt_frame_regs *upd)
3557 {
3558 struct ieee80211_local *local = wiphy_priv(wiphy);
3559 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3560 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3561 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3562 bool global_change, intf_change;
3563
3564 global_change =
3565 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3566 (local->rx_mcast_action_reg !=
3567 !!(upd->global_mcast_stypes & action_mask));
3568 local->probe_req_reg = upd->global_stypes & preq_mask;
3569 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3570
3571 intf_change = (sdata->vif.probe_req_reg !=
3572 !!(upd->interface_stypes & preq_mask)) ||
3573 (sdata->vif.rx_mcast_action_reg !=
3574 !!(upd->interface_mcast_stypes & action_mask));
3575 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3576 sdata->vif.rx_mcast_action_reg =
3577 upd->interface_mcast_stypes & action_mask;
3578
3579 if (!local->open_count)
3580 return;
3581
3582 if (intf_change && ieee80211_sdata_running(sdata))
3583 drv_config_iface_filter(local, sdata,
3584 sdata->vif.probe_req_reg ?
3585 FIF_PROBE_REQ : 0,
3586 FIF_PROBE_REQ);
3587
3588 if (global_change)
3589 ieee80211_configure_filter(local);
3590 }
3591
ieee80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)3592 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3593 {
3594 struct ieee80211_local *local = wiphy_priv(wiphy);
3595
3596 if (local->started)
3597 return -EOPNOTSUPP;
3598
3599 return drv_set_antenna(local, tx_ant, rx_ant);
3600 }
3601
ieee80211_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)3602 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3603 {
3604 struct ieee80211_local *local = wiphy_priv(wiphy);
3605
3606 return drv_get_antenna(local, tx_ant, rx_ant);
3607 }
3608
ieee80211_set_rekey_data(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_gtk_rekey_data * data)3609 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3610 struct net_device *dev,
3611 struct cfg80211_gtk_rekey_data *data)
3612 {
3613 struct ieee80211_local *local = wiphy_priv(wiphy);
3614 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3615
3616 if (!local->ops->set_rekey_data)
3617 return -EOPNOTSUPP;
3618
3619 drv_set_rekey_data(local, sdata, data);
3620
3621 return 0;
3622 }
3623
ieee80211_probe_client(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u64 * cookie)3624 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3625 const u8 *peer, u64 *cookie)
3626 {
3627 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3628 struct ieee80211_local *local = sdata->local;
3629 struct ieee80211_qos_hdr *nullfunc;
3630 struct sk_buff *skb;
3631 int size = sizeof(*nullfunc);
3632 __le16 fc;
3633 bool qos;
3634 struct ieee80211_tx_info *info;
3635 struct sta_info *sta;
3636 struct ieee80211_chanctx_conf *chanctx_conf;
3637 enum nl80211_band band;
3638 int ret;
3639
3640 /* the lock is needed to assign the cookie later */
3641 mutex_lock(&local->mtx);
3642
3643 rcu_read_lock();
3644 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3645 if (WARN_ON(!chanctx_conf)) {
3646 ret = -EINVAL;
3647 goto unlock;
3648 }
3649 band = chanctx_conf->def.chan->band;
3650 sta = sta_info_get_bss(sdata, peer);
3651 if (sta) {
3652 qos = sta->sta.wme;
3653 } else {
3654 ret = -ENOLINK;
3655 goto unlock;
3656 }
3657
3658 if (qos) {
3659 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3660 IEEE80211_STYPE_QOS_NULLFUNC |
3661 IEEE80211_FCTL_FROMDS);
3662 } else {
3663 size -= 2;
3664 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3665 IEEE80211_STYPE_NULLFUNC |
3666 IEEE80211_FCTL_FROMDS);
3667 }
3668
3669 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3670 if (!skb) {
3671 ret = -ENOMEM;
3672 goto unlock;
3673 }
3674
3675 skb->dev = dev;
3676
3677 skb_reserve(skb, local->hw.extra_tx_headroom);
3678
3679 nullfunc = skb_put(skb, size);
3680 nullfunc->frame_control = fc;
3681 nullfunc->duration_id = 0;
3682 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3683 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3684 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3685 nullfunc->seq_ctrl = 0;
3686
3687 info = IEEE80211_SKB_CB(skb);
3688
3689 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3690 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3691 info->band = band;
3692
3693 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3694 skb->priority = 7;
3695 if (qos)
3696 nullfunc->qos_ctrl = cpu_to_le16(7);
3697
3698 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3699 if (ret) {
3700 kfree_skb(skb);
3701 goto unlock;
3702 }
3703
3704 local_bh_disable();
3705 ieee80211_xmit(sdata, sta, skb);
3706 local_bh_enable();
3707
3708 ret = 0;
3709 unlock:
3710 rcu_read_unlock();
3711 mutex_unlock(&local->mtx);
3712
3713 return ret;
3714 }
3715
ieee80211_cfg_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_chan_def * chandef)3716 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3717 struct wireless_dev *wdev,
3718 struct cfg80211_chan_def *chandef)
3719 {
3720 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3721 struct ieee80211_local *local = wiphy_priv(wiphy);
3722 struct ieee80211_chanctx_conf *chanctx_conf;
3723 int ret = -ENODATA;
3724
3725 rcu_read_lock();
3726 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3727 if (chanctx_conf) {
3728 *chandef = sdata->vif.bss_conf.chandef;
3729 ret = 0;
3730 } else if (local->open_count > 0 &&
3731 local->open_count == local->monitors &&
3732 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3733 if (local->use_chanctx)
3734 *chandef = local->monitor_chandef;
3735 else
3736 *chandef = local->_oper_chandef;
3737 ret = 0;
3738 }
3739 rcu_read_unlock();
3740
3741 return ret;
3742 }
3743
3744 #ifdef CONFIG_PM
ieee80211_set_wakeup(struct wiphy * wiphy,bool enabled)3745 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3746 {
3747 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3748 }
3749 #endif
3750
ieee80211_set_qos_map(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_qos_map * qos_map)3751 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3752 struct net_device *dev,
3753 struct cfg80211_qos_map *qos_map)
3754 {
3755 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3756 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3757
3758 if (qos_map) {
3759 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3760 if (!new_qos_map)
3761 return -ENOMEM;
3762 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3763 } else {
3764 /* A NULL qos_map was passed to disable QoS mapping */
3765 new_qos_map = NULL;
3766 }
3767
3768 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3769 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3770 if (old_qos_map)
3771 kfree_rcu(old_qos_map, rcu_head);
3772
3773 return 0;
3774 }
3775
ieee80211_set_ap_chanwidth(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef)3776 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3777 struct net_device *dev,
3778 struct cfg80211_chan_def *chandef)
3779 {
3780 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3781 int ret;
3782 u32 changed = 0;
3783
3784 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3785 if (ret == 0)
3786 ieee80211_bss_info_change_notify(sdata, changed);
3787
3788 return ret;
3789 }
3790
ieee80211_add_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer,u8 up,u16 admitted_time)3791 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3792 u8 tsid, const u8 *peer, u8 up,
3793 u16 admitted_time)
3794 {
3795 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3796 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3797 int ac = ieee802_1d_to_ac[up];
3798
3799 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3800 return -EOPNOTSUPP;
3801
3802 if (!(sdata->wmm_acm & BIT(up)))
3803 return -EINVAL;
3804
3805 if (ifmgd->tx_tspec[ac].admitted_time)
3806 return -EBUSY;
3807
3808 if (admitted_time) {
3809 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3810 ifmgd->tx_tspec[ac].tsid = tsid;
3811 ifmgd->tx_tspec[ac].up = up;
3812 }
3813
3814 return 0;
3815 }
3816
ieee80211_del_tx_ts(struct wiphy * wiphy,struct net_device * dev,u8 tsid,const u8 * peer)3817 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3818 u8 tsid, const u8 *peer)
3819 {
3820 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3821 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3822 struct ieee80211_local *local = wiphy_priv(wiphy);
3823 int ac;
3824
3825 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3826 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3827
3828 /* skip unused entries */
3829 if (!tx_tspec->admitted_time)
3830 continue;
3831
3832 if (tx_tspec->tsid != tsid)
3833 continue;
3834
3835 /* due to this new packets will be reassigned to non-ACM ACs */
3836 tx_tspec->up = -1;
3837
3838 /* Make sure that all packets have been sent to avoid to
3839 * restore the QoS params on packets that are still on the
3840 * queues.
3841 */
3842 synchronize_net();
3843 ieee80211_flush_queues(local, sdata, false);
3844
3845 /* restore the normal QoS parameters
3846 * (unconditionally to avoid races)
3847 */
3848 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3849 tx_tspec->downgraded = false;
3850 ieee80211_sta_handle_tspec_ac_params(sdata);
3851
3852 /* finally clear all the data */
3853 memset(tx_tspec, 0, sizeof(*tx_tspec));
3854
3855 return 0;
3856 }
3857
3858 return -ENOENT;
3859 }
3860
ieee80211_nan_func_terminated(struct ieee80211_vif * vif,u8 inst_id,enum nl80211_nan_func_term_reason reason,gfp_t gfp)3861 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3862 u8 inst_id,
3863 enum nl80211_nan_func_term_reason reason,
3864 gfp_t gfp)
3865 {
3866 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3867 struct cfg80211_nan_func *func;
3868 u64 cookie;
3869
3870 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3871 return;
3872
3873 spin_lock_bh(&sdata->u.nan.func_lock);
3874
3875 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3876 if (WARN_ON(!func)) {
3877 spin_unlock_bh(&sdata->u.nan.func_lock);
3878 return;
3879 }
3880
3881 cookie = func->cookie;
3882 idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3883
3884 spin_unlock_bh(&sdata->u.nan.func_lock);
3885
3886 cfg80211_free_nan_func(func);
3887
3888 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3889 reason, cookie, gfp);
3890 }
3891 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3892
ieee80211_nan_func_match(struct ieee80211_vif * vif,struct cfg80211_nan_match_params * match,gfp_t gfp)3893 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3894 struct cfg80211_nan_match_params *match,
3895 gfp_t gfp)
3896 {
3897 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3898 struct cfg80211_nan_func *func;
3899
3900 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3901 return;
3902
3903 spin_lock_bh(&sdata->u.nan.func_lock);
3904
3905 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id);
3906 if (WARN_ON(!func)) {
3907 spin_unlock_bh(&sdata->u.nan.func_lock);
3908 return;
3909 }
3910 match->cookie = func->cookie;
3911
3912 spin_unlock_bh(&sdata->u.nan.func_lock);
3913
3914 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3915 }
3916 EXPORT_SYMBOL(ieee80211_nan_func_match);
3917
ieee80211_set_multicast_to_unicast(struct wiphy * wiphy,struct net_device * dev,const bool enabled)3918 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3919 struct net_device *dev,
3920 const bool enabled)
3921 {
3922 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3923
3924 sdata->u.ap.multicast_to_unicast = enabled;
3925
3926 return 0;
3927 }
3928
ieee80211_fill_txq_stats(struct cfg80211_txq_stats * txqstats,struct txq_info * txqi)3929 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3930 struct txq_info *txqi)
3931 {
3932 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3933 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3934 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3935 }
3936
3937 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3938 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3939 txqstats->backlog_packets = txqi->tin.backlog_packets;
3940 }
3941
3942 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3943 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3944 txqstats->flows = txqi->tin.flows;
3945 }
3946
3947 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3948 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3949 txqstats->drops = txqi->cstats.drop_count;
3950 }
3951
3952 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3953 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3954 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3955 }
3956
3957 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3958 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3959 txqstats->overlimit = txqi->tin.overlimit;
3960 }
3961
3962 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3963 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3964 txqstats->collisions = txqi->tin.collisions;
3965 }
3966
3967 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3968 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3969 txqstats->tx_bytes = txqi->tin.tx_bytes;
3970 }
3971
3972 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3973 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3974 txqstats->tx_packets = txqi->tin.tx_packets;
3975 }
3976 }
3977
ieee80211_get_txq_stats(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_txq_stats * txqstats)3978 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3979 struct wireless_dev *wdev,
3980 struct cfg80211_txq_stats *txqstats)
3981 {
3982 struct ieee80211_local *local = wiphy_priv(wiphy);
3983 struct ieee80211_sub_if_data *sdata;
3984 int ret = 0;
3985
3986 if (!local->ops->wake_tx_queue)
3987 return 1;
3988
3989 spin_lock_bh(&local->fq.lock);
3990 rcu_read_lock();
3991
3992 if (wdev) {
3993 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3994 if (!sdata->vif.txq) {
3995 ret = 1;
3996 goto out;
3997 }
3998 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3999 } else {
4000 /* phy stats */
4001 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4002 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4003 BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4004 BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4005 BIT(NL80211_TXQ_STATS_COLLISIONS) |
4006 BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4007 txqstats->backlog_packets = local->fq.backlog;
4008 txqstats->backlog_bytes = local->fq.memory_usage;
4009 txqstats->overlimit = local->fq.overlimit;
4010 txqstats->overmemory = local->fq.overmemory;
4011 txqstats->collisions = local->fq.collisions;
4012 txqstats->max_flows = local->fq.flows_cnt;
4013 }
4014
4015 out:
4016 rcu_read_unlock();
4017 spin_unlock_bh(&local->fq.lock);
4018
4019 return ret;
4020 }
4021
4022 static int
ieee80211_get_ftm_responder_stats(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ftm_responder_stats * ftm_stats)4023 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4024 struct net_device *dev,
4025 struct cfg80211_ftm_responder_stats *ftm_stats)
4026 {
4027 struct ieee80211_local *local = wiphy_priv(wiphy);
4028 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4029
4030 return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4031 }
4032
4033 static int
ieee80211_start_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4034 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4035 struct cfg80211_pmsr_request *request)
4036 {
4037 struct ieee80211_local *local = wiphy_priv(wiphy);
4038 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4039
4040 return drv_start_pmsr(local, sdata, request);
4041 }
4042
4043 static void
ieee80211_abort_pmsr(struct wiphy * wiphy,struct wireless_dev * dev,struct cfg80211_pmsr_request * request)4044 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4045 struct cfg80211_pmsr_request *request)
4046 {
4047 struct ieee80211_local *local = wiphy_priv(wiphy);
4048 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4049
4050 return drv_abort_pmsr(local, sdata, request);
4051 }
4052
ieee80211_set_tid_config(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_tid_config * tid_conf)4053 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4054 struct net_device *dev,
4055 struct cfg80211_tid_config *tid_conf)
4056 {
4057 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4058 struct sta_info *sta;
4059 int ret;
4060
4061 if (!sdata->local->ops->set_tid_config)
4062 return -EOPNOTSUPP;
4063
4064 if (!tid_conf->peer)
4065 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4066
4067 mutex_lock(&sdata->local->sta_mtx);
4068 sta = sta_info_get_bss(sdata, tid_conf->peer);
4069 if (!sta) {
4070 mutex_unlock(&sdata->local->sta_mtx);
4071 return -ENOENT;
4072 }
4073
4074 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4075 mutex_unlock(&sdata->local->sta_mtx);
4076
4077 return ret;
4078 }
4079
ieee80211_reset_tid_config(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 tids)4080 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4081 struct net_device *dev,
4082 const u8 *peer, u8 tids)
4083 {
4084 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4085 struct sta_info *sta;
4086 int ret;
4087
4088 if (!sdata->local->ops->reset_tid_config)
4089 return -EOPNOTSUPP;
4090
4091 if (!peer)
4092 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4093
4094 mutex_lock(&sdata->local->sta_mtx);
4095 sta = sta_info_get_bss(sdata, peer);
4096 if (!sta) {
4097 mutex_unlock(&sdata->local->sta_mtx);
4098 return -ENOENT;
4099 }
4100
4101 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4102 mutex_unlock(&sdata->local->sta_mtx);
4103
4104 return ret;
4105 }
4106
4107 const struct cfg80211_ops mac80211_config_ops = {
4108 .add_virtual_intf = ieee80211_add_iface,
4109 .del_virtual_intf = ieee80211_del_iface,
4110 .change_virtual_intf = ieee80211_change_iface,
4111 .start_p2p_device = ieee80211_start_p2p_device,
4112 .stop_p2p_device = ieee80211_stop_p2p_device,
4113 .add_key = ieee80211_add_key,
4114 .del_key = ieee80211_del_key,
4115 .get_key = ieee80211_get_key,
4116 .set_default_key = ieee80211_config_default_key,
4117 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4118 .set_default_beacon_key = ieee80211_config_default_beacon_key,
4119 .start_ap = ieee80211_start_ap,
4120 .change_beacon = ieee80211_change_beacon,
4121 .stop_ap = ieee80211_stop_ap,
4122 .add_station = ieee80211_add_station,
4123 .del_station = ieee80211_del_station,
4124 .change_station = ieee80211_change_station,
4125 .get_station = ieee80211_get_station,
4126 .dump_station = ieee80211_dump_station,
4127 .dump_survey = ieee80211_dump_survey,
4128 #ifdef CONFIG_MAC80211_MESH
4129 .add_mpath = ieee80211_add_mpath,
4130 .del_mpath = ieee80211_del_mpath,
4131 .change_mpath = ieee80211_change_mpath,
4132 .get_mpath = ieee80211_get_mpath,
4133 .dump_mpath = ieee80211_dump_mpath,
4134 .get_mpp = ieee80211_get_mpp,
4135 .dump_mpp = ieee80211_dump_mpp,
4136 .update_mesh_config = ieee80211_update_mesh_config,
4137 .get_mesh_config = ieee80211_get_mesh_config,
4138 .join_mesh = ieee80211_join_mesh,
4139 .leave_mesh = ieee80211_leave_mesh,
4140 #endif
4141 .join_ocb = ieee80211_join_ocb,
4142 .leave_ocb = ieee80211_leave_ocb,
4143 .change_bss = ieee80211_change_bss,
4144 .set_txq_params = ieee80211_set_txq_params,
4145 .set_monitor_channel = ieee80211_set_monitor_channel,
4146 .suspend = ieee80211_suspend,
4147 .resume = ieee80211_resume,
4148 .scan = ieee80211_scan,
4149 .abort_scan = ieee80211_abort_scan,
4150 .sched_scan_start = ieee80211_sched_scan_start,
4151 .sched_scan_stop = ieee80211_sched_scan_stop,
4152 .auth = ieee80211_auth,
4153 .assoc = ieee80211_assoc,
4154 .deauth = ieee80211_deauth,
4155 .disassoc = ieee80211_disassoc,
4156 .join_ibss = ieee80211_join_ibss,
4157 .leave_ibss = ieee80211_leave_ibss,
4158 .set_mcast_rate = ieee80211_set_mcast_rate,
4159 .set_wiphy_params = ieee80211_set_wiphy_params,
4160 .set_tx_power = ieee80211_set_tx_power,
4161 .get_tx_power = ieee80211_get_tx_power,
4162 .set_wds_peer = ieee80211_set_wds_peer,
4163 .rfkill_poll = ieee80211_rfkill_poll,
4164 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4165 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4166 .set_power_mgmt = ieee80211_set_power_mgmt,
4167 .set_bitrate_mask = ieee80211_set_bitrate_mask,
4168 .remain_on_channel = ieee80211_remain_on_channel,
4169 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4170 .mgmt_tx = ieee80211_mgmt_tx,
4171 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4172 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4173 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4174 .update_mgmt_frame_registrations =
4175 ieee80211_update_mgmt_frame_registrations,
4176 .set_antenna = ieee80211_set_antenna,
4177 .get_antenna = ieee80211_get_antenna,
4178 .set_rekey_data = ieee80211_set_rekey_data,
4179 .tdls_oper = ieee80211_tdls_oper,
4180 .tdls_mgmt = ieee80211_tdls_mgmt,
4181 .tdls_channel_switch = ieee80211_tdls_channel_switch,
4182 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4183 .probe_client = ieee80211_probe_client,
4184 .set_noack_map = ieee80211_set_noack_map,
4185 #ifdef CONFIG_PM
4186 .set_wakeup = ieee80211_set_wakeup,
4187 #endif
4188 .get_channel = ieee80211_cfg_get_channel,
4189 .start_radar_detection = ieee80211_start_radar_detection,
4190 .end_cac = ieee80211_end_cac,
4191 .channel_switch = ieee80211_channel_switch,
4192 .set_qos_map = ieee80211_set_qos_map,
4193 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4194 .add_tx_ts = ieee80211_add_tx_ts,
4195 .del_tx_ts = ieee80211_del_tx_ts,
4196 .start_nan = ieee80211_start_nan,
4197 .stop_nan = ieee80211_stop_nan,
4198 .nan_change_conf = ieee80211_nan_change_conf,
4199 .add_nan_func = ieee80211_add_nan_func,
4200 .del_nan_func = ieee80211_del_nan_func,
4201 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4202 .tx_control_port = ieee80211_tx_control_port,
4203 .get_txq_stats = ieee80211_get_txq_stats,
4204 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4205 .start_pmsr = ieee80211_start_pmsr,
4206 .abort_pmsr = ieee80211_abort_pmsr,
4207 .probe_mesh_link = ieee80211_probe_mesh_link,
4208 .set_tid_config = ieee80211_set_tid_config,
4209 .reset_tid_config = ieee80211_reset_tid_config,
4210 };
4211