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) 2018-2022 Intel Corporation |
9 | */ |
10 | |
11 | #include <linux/ieee80211.h> |
12 | #include <linux/nl80211.h> |
13 | #include <linux/rtnetlink.h> |
14 | #include <linux/slab.h> |
15 | #include <net/net_namespace.h> |
16 | #include <linux/rcupdate.h> |
17 | #include <linux/fips.h> |
18 | #include <linux/if_ether.h> |
19 | #include <net/cfg80211.h> |
20 | #include "ieee80211_i.h" |
21 | #include "driver-ops.h" |
22 | #include "rate.h" |
23 | #include "mesh.h" |
24 | #include "wme.h" |
25 | |
26 | static struct ieee80211_link_data * |
27 | ieee80211_link_or_deflink(struct ieee80211_sub_if_data *sdata, int link_id, |
28 | bool require_valid) |
29 | { |
30 | struct ieee80211_link_data *link; |
31 | |
32 | if (link_id < 0) { |
33 | /* |
34 | * For keys, if sdata is not an MLD, we might not use |
35 | * the return value at all (if it's not a pairwise key), |
36 | * so in that case (require_valid==false) don't error. |
37 | */ |
38 | if (require_valid && ieee80211_vif_is_mld(vif: &sdata->vif)) |
39 | return ERR_PTR(error: -EINVAL); |
40 | |
41 | return &sdata->deflink; |
42 | } |
43 | |
44 | link = sdata_dereference(sdata->link[link_id], sdata); |
45 | if (!link) |
46 | return ERR_PTR(error: -ENOLINK); |
47 | return link; |
48 | } |
49 | |
50 | static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, |
51 | struct vif_params *params) |
52 | { |
53 | bool mu_mimo_groups = false; |
54 | bool mu_mimo_follow = false; |
55 | |
56 | if (params->vht_mumimo_groups) { |
57 | u64 membership; |
58 | |
59 | BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); |
60 | |
61 | memcpy(sdata->vif.bss_conf.mu_group.membership, |
62 | params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); |
63 | memcpy(sdata->vif.bss_conf.mu_group.position, |
64 | params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, |
65 | WLAN_USER_POSITION_LEN); |
66 | ieee80211_link_info_change_notify(sdata, link: &sdata->deflink, |
67 | changed: BSS_CHANGED_MU_GROUPS); |
68 | /* don't care about endianness - just check for 0 */ |
69 | memcpy(&membership, params->vht_mumimo_groups, |
70 | WLAN_MEMBERSHIP_LEN); |
71 | mu_mimo_groups = membership != 0; |
72 | } |
73 | |
74 | if (params->vht_mumimo_follow_addr) { |
75 | mu_mimo_follow = |
76 | is_valid_ether_addr(addr: params->vht_mumimo_follow_addr); |
77 | ether_addr_copy(dst: sdata->u.mntr.mu_follow_addr, |
78 | src: params->vht_mumimo_follow_addr); |
79 | } |
80 | |
81 | sdata->vif.bss_conf.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; |
82 | } |
83 | |
84 | static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, |
85 | struct vif_params *params) |
86 | { |
87 | struct ieee80211_local *local = sdata->local; |
88 | struct ieee80211_sub_if_data *monitor_sdata; |
89 | |
90 | /* check flags first */ |
91 | if (params->flags && ieee80211_sdata_running(sdata)) { |
92 | u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; |
93 | |
94 | /* |
95 | * Prohibit MONITOR_FLAG_COOK_FRAMES and |
96 | * MONITOR_FLAG_ACTIVE to be changed while the |
97 | * interface is up. |
98 | * Else we would need to add a lot of cruft |
99 | * to update everything: |
100 | * cooked_mntrs, monitor and all fif_* counters |
101 | * reconfigure hardware |
102 | */ |
103 | if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) |
104 | return -EBUSY; |
105 | } |
106 | |
107 | /* also validate MU-MIMO change */ |
108 | monitor_sdata = wiphy_dereference(local->hw.wiphy, |
109 | local->monitor_sdata); |
110 | |
111 | if (!monitor_sdata && |
112 | (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) |
113 | return -EOPNOTSUPP; |
114 | |
115 | /* apply all changes now - no failures allowed */ |
116 | |
117 | if (monitor_sdata) |
118 | ieee80211_set_mu_mimo_follow(sdata: monitor_sdata, params); |
119 | |
120 | if (params->flags) { |
121 | if (ieee80211_sdata_running(sdata)) { |
122 | ieee80211_adjust_monitor_flags(sdata, offset: -1); |
123 | sdata->u.mntr.flags = params->flags; |
124 | ieee80211_adjust_monitor_flags(sdata, offset: 1); |
125 | |
126 | ieee80211_configure_filter(local); |
127 | } else { |
128 | /* |
129 | * Because the interface is down, ieee80211_do_stop |
130 | * and ieee80211_do_open take care of "everything" |
131 | * mentioned in the comment above. |
132 | */ |
133 | sdata->u.mntr.flags = params->flags; |
134 | } |
135 | } |
136 | |
137 | return 0; |
138 | } |
139 | |
140 | static int ieee80211_set_ap_mbssid_options(struct ieee80211_sub_if_data *sdata, |
141 | struct cfg80211_mbssid_config params, |
142 | struct ieee80211_bss_conf *link_conf) |
143 | { |
144 | struct ieee80211_sub_if_data *tx_sdata; |
145 | |
146 | sdata->vif.mbssid_tx_vif = NULL; |
147 | link_conf->bssid_index = 0; |
148 | link_conf->nontransmitted = false; |
149 | link_conf->ema_ap = false; |
150 | link_conf->bssid_indicator = 0; |
151 | |
152 | if (sdata->vif.type != NL80211_IFTYPE_AP || !params.tx_wdev) |
153 | return -EINVAL; |
154 | |
155 | tx_sdata = IEEE80211_WDEV_TO_SUB_IF(wdev: params.tx_wdev); |
156 | if (!tx_sdata) |
157 | return -EINVAL; |
158 | |
159 | if (tx_sdata == sdata) { |
160 | sdata->vif.mbssid_tx_vif = &sdata->vif; |
161 | } else { |
162 | sdata->vif.mbssid_tx_vif = &tx_sdata->vif; |
163 | link_conf->nontransmitted = true; |
164 | link_conf->bssid_index = params.index; |
165 | } |
166 | if (params.ema) |
167 | link_conf->ema_ap = true; |
168 | |
169 | return 0; |
170 | } |
171 | |
172 | static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, |
173 | const char *name, |
174 | unsigned char name_assign_type, |
175 | enum nl80211_iftype type, |
176 | struct vif_params *params) |
177 | { |
178 | struct ieee80211_local *local = wiphy_priv(wiphy); |
179 | struct wireless_dev *wdev; |
180 | struct ieee80211_sub_if_data *sdata; |
181 | int err; |
182 | |
183 | err = ieee80211_if_add(local, name, name_assign_type, new_wdev: &wdev, type, params); |
184 | if (err) |
185 | return ERR_PTR(error: err); |
186 | |
187 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
188 | |
189 | if (type == NL80211_IFTYPE_MONITOR) { |
190 | err = ieee80211_set_mon_options(sdata, params); |
191 | if (err) { |
192 | ieee80211_if_remove(sdata); |
193 | return NULL; |
194 | } |
195 | } |
196 | |
197 | return wdev; |
198 | } |
199 | |
200 | static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) |
201 | { |
202 | ieee80211_if_remove(sdata: IEEE80211_WDEV_TO_SUB_IF(wdev)); |
203 | |
204 | return 0; |
205 | } |
206 | |
207 | static int ieee80211_change_iface(struct wiphy *wiphy, |
208 | struct net_device *dev, |
209 | enum nl80211_iftype type, |
210 | struct vif_params *params) |
211 | { |
212 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
213 | struct ieee80211_local *local = sdata->local; |
214 | struct sta_info *sta; |
215 | int ret; |
216 | |
217 | lockdep_assert_wiphy(local->hw.wiphy); |
218 | |
219 | ret = ieee80211_if_change_type(sdata, type); |
220 | if (ret) |
221 | return ret; |
222 | |
223 | if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { |
224 | RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); |
225 | ieee80211_check_fast_rx_iface(sdata); |
226 | } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { |
227 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
228 | |
229 | if (params->use_4addr == ifmgd->use_4addr) |
230 | return 0; |
231 | |
232 | /* FIXME: no support for 4-addr MLO yet */ |
233 | if (ieee80211_vif_is_mld(vif: &sdata->vif)) |
234 | return -EOPNOTSUPP; |
235 | |
236 | sdata->u.mgd.use_4addr = params->use_4addr; |
237 | if (!ifmgd->associated) |
238 | return 0; |
239 | |
240 | sta = sta_info_get(sdata, addr: sdata->deflink.u.mgd.bssid); |
241 | if (sta) |
242 | drv_sta_set_4addr(local, sdata, sta: &sta->sta, |
243 | enabled: params->use_4addr); |
244 | |
245 | if (params->use_4addr) |
246 | ieee80211_send_4addr_nullfunc(local, sdata); |
247 | } |
248 | |
249 | if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
250 | ret = ieee80211_set_mon_options(sdata, params); |
251 | if (ret) |
252 | return ret; |
253 | } |
254 | |
255 | return 0; |
256 | } |
257 | |
258 | static int ieee80211_start_p2p_device(struct wiphy *wiphy, |
259 | struct wireless_dev *wdev) |
260 | { |
261 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
262 | int ret; |
263 | |
264 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
265 | |
266 | ret = ieee80211_check_combinations(sdata, NULL, chanmode: 0, radar_detect: 0); |
267 | if (ret < 0) |
268 | return ret; |
269 | |
270 | return ieee80211_do_open(wdev, coming_up: true); |
271 | } |
272 | |
273 | static void ieee80211_stop_p2p_device(struct wiphy *wiphy, |
274 | struct wireless_dev *wdev) |
275 | { |
276 | ieee80211_sdata_stop(sdata: IEEE80211_WDEV_TO_SUB_IF(wdev)); |
277 | } |
278 | |
279 | static int ieee80211_start_nan(struct wiphy *wiphy, |
280 | struct wireless_dev *wdev, |
281 | struct cfg80211_nan_conf *conf) |
282 | { |
283 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
284 | int ret; |
285 | |
286 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
287 | |
288 | ret = ieee80211_check_combinations(sdata, NULL, chanmode: 0, radar_detect: 0); |
289 | if (ret < 0) |
290 | return ret; |
291 | |
292 | ret = ieee80211_do_open(wdev, coming_up: true); |
293 | if (ret) |
294 | return ret; |
295 | |
296 | ret = drv_start_nan(local: sdata->local, sdata, conf); |
297 | if (ret) |
298 | ieee80211_sdata_stop(sdata); |
299 | |
300 | sdata->u.nan.conf = *conf; |
301 | |
302 | return ret; |
303 | } |
304 | |
305 | static void ieee80211_stop_nan(struct wiphy *wiphy, |
306 | struct wireless_dev *wdev) |
307 | { |
308 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
309 | |
310 | drv_stop_nan(local: sdata->local, sdata); |
311 | ieee80211_sdata_stop(sdata); |
312 | } |
313 | |
314 | static int ieee80211_nan_change_conf(struct wiphy *wiphy, |
315 | struct wireless_dev *wdev, |
316 | struct cfg80211_nan_conf *conf, |
317 | u32 changes) |
318 | { |
319 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
320 | struct cfg80211_nan_conf new_conf; |
321 | int ret = 0; |
322 | |
323 | if (sdata->vif.type != NL80211_IFTYPE_NAN) |
324 | return -EOPNOTSUPP; |
325 | |
326 | if (!ieee80211_sdata_running(sdata)) |
327 | return -ENETDOWN; |
328 | |
329 | new_conf = sdata->u.nan.conf; |
330 | |
331 | if (changes & CFG80211_NAN_CONF_CHANGED_PREF) |
332 | new_conf.master_pref = conf->master_pref; |
333 | |
334 | if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) |
335 | new_conf.bands = conf->bands; |
336 | |
337 | ret = drv_nan_change_conf(local: sdata->local, sdata, conf: &new_conf, changes); |
338 | if (!ret) |
339 | sdata->u.nan.conf = new_conf; |
340 | |
341 | return ret; |
342 | } |
343 | |
344 | static int ieee80211_add_nan_func(struct wiphy *wiphy, |
345 | struct wireless_dev *wdev, |
346 | struct cfg80211_nan_func *nan_func) |
347 | { |
348 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
349 | int ret; |
350 | |
351 | if (sdata->vif.type != NL80211_IFTYPE_NAN) |
352 | return -EOPNOTSUPP; |
353 | |
354 | if (!ieee80211_sdata_running(sdata)) |
355 | return -ENETDOWN; |
356 | |
357 | spin_lock_bh(lock: &sdata->u.nan.func_lock); |
358 | |
359 | ret = idr_alloc(&sdata->u.nan.function_inst_ids, |
360 | ptr: nan_func, start: 1, end: sdata->local->hw.max_nan_de_entries + 1, |
361 | GFP_ATOMIC); |
362 | spin_unlock_bh(lock: &sdata->u.nan.func_lock); |
363 | |
364 | if (ret < 0) |
365 | return ret; |
366 | |
367 | nan_func->instance_id = ret; |
368 | |
369 | WARN_ON(nan_func->instance_id == 0); |
370 | |
371 | ret = drv_add_nan_func(local: sdata->local, sdata, nan_func); |
372 | if (ret) { |
373 | spin_lock_bh(lock: &sdata->u.nan.func_lock); |
374 | idr_remove(&sdata->u.nan.function_inst_ids, |
375 | id: nan_func->instance_id); |
376 | spin_unlock_bh(lock: &sdata->u.nan.func_lock); |
377 | } |
378 | |
379 | return ret; |
380 | } |
381 | |
382 | static struct cfg80211_nan_func * |
383 | ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, |
384 | u64 cookie) |
385 | { |
386 | struct cfg80211_nan_func *func; |
387 | int id; |
388 | |
389 | lockdep_assert_held(&sdata->u.nan.func_lock); |
390 | |
391 | idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { |
392 | if (func->cookie == cookie) |
393 | return func; |
394 | } |
395 | |
396 | return NULL; |
397 | } |
398 | |
399 | static void ieee80211_del_nan_func(struct wiphy *wiphy, |
400 | struct wireless_dev *wdev, u64 cookie) |
401 | { |
402 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
403 | struct cfg80211_nan_func *func; |
404 | u8 instance_id = 0; |
405 | |
406 | if (sdata->vif.type != NL80211_IFTYPE_NAN || |
407 | !ieee80211_sdata_running(sdata)) |
408 | return; |
409 | |
410 | spin_lock_bh(lock: &sdata->u.nan.func_lock); |
411 | |
412 | func = ieee80211_find_nan_func_by_cookie(sdata, cookie); |
413 | if (func) |
414 | instance_id = func->instance_id; |
415 | |
416 | spin_unlock_bh(lock: &sdata->u.nan.func_lock); |
417 | |
418 | if (instance_id) |
419 | drv_del_nan_func(local: sdata->local, sdata, instance_id); |
420 | } |
421 | |
422 | static int ieee80211_set_noack_map(struct wiphy *wiphy, |
423 | struct net_device *dev, |
424 | u16 noack_map) |
425 | { |
426 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
427 | |
428 | sdata->noack_map = noack_map; |
429 | |
430 | ieee80211_check_fast_xmit_iface(sdata); |
431 | |
432 | return 0; |
433 | } |
434 | |
435 | static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, |
436 | const u8 *mac_addr, u8 key_idx) |
437 | { |
438 | struct ieee80211_local *local = sdata->local; |
439 | struct ieee80211_key *key; |
440 | struct sta_info *sta; |
441 | int ret = -EINVAL; |
442 | |
443 | if (!wiphy_ext_feature_isset(wiphy: local->hw.wiphy, |
444 | ftidx: NL80211_EXT_FEATURE_EXT_KEY_ID)) |
445 | return -EINVAL; |
446 | |
447 | sta = sta_info_get_bss(sdata, addr: mac_addr); |
448 | |
449 | if (!sta) |
450 | return -EINVAL; |
451 | |
452 | if (sta->ptk_idx == key_idx) |
453 | return 0; |
454 | |
455 | key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]); |
456 | |
457 | if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) |
458 | ret = ieee80211_set_tx_key(key); |
459 | |
460 | return ret; |
461 | } |
462 | |
463 | static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, |
464 | int link_id, u8 key_idx, bool pairwise, |
465 | const u8 *mac_addr, struct key_params *params) |
466 | { |
467 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
468 | struct ieee80211_link_data *link = |
469 | ieee80211_link_or_deflink(sdata, link_id, require_valid: false); |
470 | struct ieee80211_local *local = sdata->local; |
471 | struct sta_info *sta = NULL; |
472 | struct ieee80211_key *key; |
473 | int err; |
474 | |
475 | lockdep_assert_wiphy(local->hw.wiphy); |
476 | |
477 | if (!ieee80211_sdata_running(sdata)) |
478 | return -ENETDOWN; |
479 | |
480 | if (IS_ERR(ptr: link)) |
481 | return PTR_ERR(ptr: link); |
482 | |
483 | if (pairwise && params->mode == NL80211_KEY_SET_TX) |
484 | return ieee80211_set_tx(sdata, mac_addr, key_idx); |
485 | |
486 | /* reject WEP and TKIP keys if WEP failed to initialize */ |
487 | switch (params->cipher) { |
488 | case WLAN_CIPHER_SUITE_WEP40: |
489 | case WLAN_CIPHER_SUITE_TKIP: |
490 | case WLAN_CIPHER_SUITE_WEP104: |
491 | if (link_id >= 0) |
492 | return -EINVAL; |
493 | if (WARN_ON_ONCE(fips_enabled)) |
494 | return -EINVAL; |
495 | break; |
496 | default: |
497 | break; |
498 | } |
499 | |
500 | key = ieee80211_key_alloc(cipher: params->cipher, idx: key_idx, key_len: params->key_len, |
501 | key_data: params->key, seq_len: params->seq_len, seq: params->seq); |
502 | if (IS_ERR(ptr: key)) |
503 | return PTR_ERR(ptr: key); |
504 | |
505 | key->conf.link_id = link_id; |
506 | |
507 | if (pairwise) |
508 | key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; |
509 | |
510 | if (params->mode == NL80211_KEY_NO_TX) |
511 | key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; |
512 | |
513 | if (mac_addr) { |
514 | sta = sta_info_get_bss(sdata, addr: mac_addr); |
515 | /* |
516 | * The ASSOC test makes sure the driver is ready to |
517 | * receive the key. When wpa_supplicant has roamed |
518 | * using FT, it attempts to set the key before |
519 | * association has completed, this rejects that attempt |
520 | * so it will set the key again after association. |
521 | * |
522 | * TODO: accept the key if we have a station entry and |
523 | * add it to the device after the station. |
524 | */ |
525 | if (!sta || !test_sta_flag(sta, flag: WLAN_STA_ASSOC)) { |
526 | ieee80211_key_free_unused(key); |
527 | return -ENOENT; |
528 | } |
529 | } |
530 | |
531 | switch (sdata->vif.type) { |
532 | case NL80211_IFTYPE_STATION: |
533 | if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) |
534 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
535 | break; |
536 | case NL80211_IFTYPE_AP: |
537 | case NL80211_IFTYPE_AP_VLAN: |
538 | /* Keys without a station are used for TX only */ |
539 | if (sta && test_sta_flag(sta, flag: WLAN_STA_MFP)) |
540 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
541 | break; |
542 | case NL80211_IFTYPE_ADHOC: |
543 | /* no MFP (yet) */ |
544 | break; |
545 | case NL80211_IFTYPE_MESH_POINT: |
546 | #ifdef CONFIG_MAC80211_MESH |
547 | if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) |
548 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
549 | break; |
550 | #endif |
551 | case NL80211_IFTYPE_WDS: |
552 | case NL80211_IFTYPE_MONITOR: |
553 | case NL80211_IFTYPE_P2P_DEVICE: |
554 | case NL80211_IFTYPE_NAN: |
555 | case NL80211_IFTYPE_UNSPECIFIED: |
556 | case NUM_NL80211_IFTYPES: |
557 | case NL80211_IFTYPE_P2P_CLIENT: |
558 | case NL80211_IFTYPE_P2P_GO: |
559 | case NL80211_IFTYPE_OCB: |
560 | /* shouldn't happen */ |
561 | WARN_ON_ONCE(1); |
562 | break; |
563 | } |
564 | |
565 | err = ieee80211_key_link(key, link, sta); |
566 | /* KRACK protection, shouldn't happen but just silently accept key */ |
567 | if (err == -EALREADY) |
568 | err = 0; |
569 | |
570 | return err; |
571 | } |
572 | |
573 | static struct ieee80211_key * |
574 | ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id, |
575 | u8 key_idx, bool pairwise, const u8 *mac_addr) |
576 | { |
577 | struct ieee80211_local *local __maybe_unused = sdata->local; |
578 | struct ieee80211_link_data *link = &sdata->deflink; |
579 | struct ieee80211_key *key; |
580 | |
581 | if (link_id >= 0) { |
582 | link = sdata_dereference(sdata->link[link_id], sdata); |
583 | if (!link) |
584 | return NULL; |
585 | } |
586 | |
587 | if (mac_addr) { |
588 | struct sta_info *sta; |
589 | struct link_sta_info *link_sta; |
590 | |
591 | sta = sta_info_get_bss(sdata, addr: mac_addr); |
592 | if (!sta) |
593 | return NULL; |
594 | |
595 | if (link_id >= 0) { |
596 | link_sta = rcu_dereference_check(sta->link[link_id], |
597 | lockdep_is_held(&local->hw.wiphy->mtx)); |
598 | if (!link_sta) |
599 | return NULL; |
600 | } else { |
601 | link_sta = &sta->deflink; |
602 | } |
603 | |
604 | if (pairwise && key_idx < NUM_DEFAULT_KEYS) |
605 | return wiphy_dereference(local->hw.wiphy, |
606 | sta->ptk[key_idx]); |
607 | |
608 | if (!pairwise && |
609 | key_idx < NUM_DEFAULT_KEYS + |
610 | NUM_DEFAULT_MGMT_KEYS + |
611 | NUM_DEFAULT_BEACON_KEYS) |
612 | return wiphy_dereference(local->hw.wiphy, |
613 | link_sta->gtk[key_idx]); |
614 | |
615 | return NULL; |
616 | } |
617 | |
618 | if (pairwise && key_idx < NUM_DEFAULT_KEYS) |
619 | return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); |
620 | |
621 | key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]); |
622 | if (key) |
623 | return key; |
624 | |
625 | /* or maybe it was a WEP key */ |
626 | if (key_idx < NUM_DEFAULT_KEYS) |
627 | return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]); |
628 | |
629 | return NULL; |
630 | } |
631 | |
632 | static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, |
633 | int link_id, u8 key_idx, bool pairwise, |
634 | const u8 *mac_addr) |
635 | { |
636 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
637 | struct ieee80211_local *local = sdata->local; |
638 | struct ieee80211_key *key; |
639 | |
640 | lockdep_assert_wiphy(local->hw.wiphy); |
641 | |
642 | key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); |
643 | if (!key) |
644 | return -ENOENT; |
645 | |
646 | ieee80211_key_free(key, delay_tailroom: sdata->vif.type == NL80211_IFTYPE_STATION); |
647 | |
648 | return 0; |
649 | } |
650 | |
651 | static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, |
652 | int link_id, u8 key_idx, bool pairwise, |
653 | const u8 *mac_addr, void *cookie, |
654 | void (*callback)(void *cookie, |
655 | struct key_params *params)) |
656 | { |
657 | struct ieee80211_sub_if_data *sdata; |
658 | u8 seq[6] = {0}; |
659 | struct key_params params; |
660 | struct ieee80211_key *key; |
661 | u64 pn64; |
662 | u32 iv32; |
663 | u16 iv16; |
664 | int err = -ENOENT; |
665 | struct ieee80211_key_seq kseq = {}; |
666 | |
667 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
668 | |
669 | rcu_read_lock(); |
670 | |
671 | key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr); |
672 | if (!key) |
673 | goto out; |
674 | |
675 | memset(¶ms, 0, sizeof(params)); |
676 | |
677 | params.cipher = key->conf.cipher; |
678 | |
679 | switch (key->conf.cipher) { |
680 | case WLAN_CIPHER_SUITE_TKIP: |
681 | pn64 = atomic64_read(v: &key->conf.tx_pn); |
682 | iv32 = TKIP_PN_TO_IV32(pn64); |
683 | iv16 = TKIP_PN_TO_IV16(pn64); |
684 | |
685 | if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && |
686 | !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { |
687 | drv_get_key_seq(local: sdata->local, key, seq: &kseq); |
688 | iv32 = kseq.tkip.iv32; |
689 | iv16 = kseq.tkip.iv16; |
690 | } |
691 | |
692 | seq[0] = iv16 & 0xff; |
693 | seq[1] = (iv16 >> 8) & 0xff; |
694 | seq[2] = iv32 & 0xff; |
695 | seq[3] = (iv32 >> 8) & 0xff; |
696 | seq[4] = (iv32 >> 16) & 0xff; |
697 | seq[5] = (iv32 >> 24) & 0xff; |
698 | params.seq = seq; |
699 | params.seq_len = 6; |
700 | break; |
701 | case WLAN_CIPHER_SUITE_CCMP: |
702 | case WLAN_CIPHER_SUITE_CCMP_256: |
703 | case WLAN_CIPHER_SUITE_AES_CMAC: |
704 | case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
705 | BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
706 | offsetof(typeof(kseq), aes_cmac)); |
707 | fallthrough; |
708 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
709 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: |
710 | BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
711 | offsetof(typeof(kseq), aes_gmac)); |
712 | fallthrough; |
713 | case WLAN_CIPHER_SUITE_GCMP: |
714 | case WLAN_CIPHER_SUITE_GCMP_256: |
715 | BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != |
716 | offsetof(typeof(kseq), gcmp)); |
717 | |
718 | if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && |
719 | !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { |
720 | drv_get_key_seq(local: sdata->local, key, seq: &kseq); |
721 | memcpy(seq, kseq.ccmp.pn, 6); |
722 | } else { |
723 | pn64 = atomic64_read(v: &key->conf.tx_pn); |
724 | seq[0] = pn64; |
725 | seq[1] = pn64 >> 8; |
726 | seq[2] = pn64 >> 16; |
727 | seq[3] = pn64 >> 24; |
728 | seq[4] = pn64 >> 32; |
729 | seq[5] = pn64 >> 40; |
730 | } |
731 | params.seq = seq; |
732 | params.seq_len = 6; |
733 | break; |
734 | default: |
735 | if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) |
736 | break; |
737 | if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) |
738 | break; |
739 | drv_get_key_seq(local: sdata->local, key, seq: &kseq); |
740 | params.seq = kseq.hw.seq; |
741 | params.seq_len = kseq.hw.seq_len; |
742 | break; |
743 | } |
744 | |
745 | params.key = key->conf.key; |
746 | params.key_len = key->conf.keylen; |
747 | |
748 | callback(cookie, ¶ms); |
749 | err = 0; |
750 | |
751 | out: |
752 | rcu_read_unlock(); |
753 | return err; |
754 | } |
755 | |
756 | static int ieee80211_config_default_key(struct wiphy *wiphy, |
757 | struct net_device *dev, |
758 | int link_id, u8 key_idx, bool uni, |
759 | bool multi) |
760 | { |
761 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
762 | struct ieee80211_link_data *link = |
763 | ieee80211_link_or_deflink(sdata, link_id, require_valid: false); |
764 | |
765 | if (IS_ERR(ptr: link)) |
766 | return PTR_ERR(ptr: link); |
767 | |
768 | ieee80211_set_default_key(link, idx: key_idx, uni, multi); |
769 | |
770 | return 0; |
771 | } |
772 | |
773 | static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, |
774 | struct net_device *dev, |
775 | int link_id, u8 key_idx) |
776 | { |
777 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
778 | struct ieee80211_link_data *link = |
779 | ieee80211_link_or_deflink(sdata, link_id, require_valid: true); |
780 | |
781 | if (IS_ERR(ptr: link)) |
782 | return PTR_ERR(ptr: link); |
783 | |
784 | ieee80211_set_default_mgmt_key(link, idx: key_idx); |
785 | |
786 | return 0; |
787 | } |
788 | |
789 | static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, |
790 | struct net_device *dev, |
791 | int link_id, u8 key_idx) |
792 | { |
793 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
794 | struct ieee80211_link_data *link = |
795 | ieee80211_link_or_deflink(sdata, link_id, require_valid: true); |
796 | |
797 | if (IS_ERR(ptr: link)) |
798 | return PTR_ERR(ptr: link); |
799 | |
800 | ieee80211_set_default_beacon_key(link, idx: key_idx); |
801 | |
802 | return 0; |
803 | } |
804 | |
805 | void sta_set_rate_info_tx(struct sta_info *sta, |
806 | const struct ieee80211_tx_rate *rate, |
807 | struct rate_info *rinfo) |
808 | { |
809 | rinfo->flags = 0; |
810 | if (rate->flags & IEEE80211_TX_RC_MCS) { |
811 | rinfo->flags |= RATE_INFO_FLAGS_MCS; |
812 | rinfo->mcs = rate->idx; |
813 | } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { |
814 | rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; |
815 | rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); |
816 | rinfo->nss = ieee80211_rate_get_vht_nss(rate); |
817 | } else { |
818 | struct ieee80211_supported_band *sband; |
819 | |
820 | sband = ieee80211_get_sband(sdata: sta->sdata); |
821 | WARN_ON_ONCE(sband && !sband->bitrates); |
822 | if (sband && sband->bitrates) |
823 | rinfo->legacy = sband->bitrates[rate->idx].bitrate; |
824 | } |
825 | if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) |
826 | rinfo->bw = RATE_INFO_BW_40; |
827 | else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) |
828 | rinfo->bw = RATE_INFO_BW_80; |
829 | else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) |
830 | rinfo->bw = RATE_INFO_BW_160; |
831 | else |
832 | rinfo->bw = RATE_INFO_BW_20; |
833 | if (rate->flags & IEEE80211_TX_RC_SHORT_GI) |
834 | rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
835 | } |
836 | |
837 | static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, |
838 | int idx, u8 *mac, struct station_info *sinfo) |
839 | { |
840 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
841 | struct ieee80211_local *local = sdata->local; |
842 | struct sta_info *sta; |
843 | int ret = -ENOENT; |
844 | |
845 | lockdep_assert_wiphy(local->hw.wiphy); |
846 | |
847 | sta = sta_info_get_by_idx(sdata, idx); |
848 | if (sta) { |
849 | ret = 0; |
850 | memcpy(mac, sta->sta.addr, ETH_ALEN); |
851 | sta_set_sinfo(sta, sinfo, tidstats: true); |
852 | } |
853 | |
854 | return ret; |
855 | } |
856 | |
857 | static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, |
858 | int idx, struct survey_info *survey) |
859 | { |
860 | struct ieee80211_local *local = wdev_priv(wdev: dev->ieee80211_ptr); |
861 | |
862 | return drv_get_survey(local, idx, survey); |
863 | } |
864 | |
865 | static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, |
866 | const u8 *mac, struct station_info *sinfo) |
867 | { |
868 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
869 | struct ieee80211_local *local = sdata->local; |
870 | struct sta_info *sta; |
871 | int ret = -ENOENT; |
872 | |
873 | lockdep_assert_wiphy(local->hw.wiphy); |
874 | |
875 | sta = sta_info_get_bss(sdata, addr: mac); |
876 | if (sta) { |
877 | ret = 0; |
878 | sta_set_sinfo(sta, sinfo, tidstats: true); |
879 | } |
880 | |
881 | return ret; |
882 | } |
883 | |
884 | static int ieee80211_set_monitor_channel(struct wiphy *wiphy, |
885 | struct cfg80211_chan_def *chandef) |
886 | { |
887 | struct ieee80211_local *local = wiphy_priv(wiphy); |
888 | struct ieee80211_sub_if_data *sdata; |
889 | int ret = 0; |
890 | |
891 | lockdep_assert_wiphy(local->hw.wiphy); |
892 | |
893 | if (cfg80211_chandef_identical(chandef1: &local->monitor_chandef, chandef2: chandef)) |
894 | return 0; |
895 | |
896 | if (local->use_chanctx) { |
897 | sdata = wiphy_dereference(local->hw.wiphy, |
898 | local->monitor_sdata); |
899 | if (sdata) { |
900 | ieee80211_link_release_channel(link: &sdata->deflink); |
901 | ret = ieee80211_link_use_channel(link: &sdata->deflink, |
902 | chandef, |
903 | mode: IEEE80211_CHANCTX_EXCLUSIVE); |
904 | } |
905 | } else { |
906 | if (local->open_count == local->monitors) { |
907 | local->_oper_chandef = *chandef; |
908 | ieee80211_hw_config(local, changed: 0); |
909 | } |
910 | } |
911 | |
912 | if (ret == 0) |
913 | local->monitor_chandef = *chandef; |
914 | |
915 | return ret; |
916 | } |
917 | |
918 | static int |
919 | ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, |
920 | const u8 *resp, size_t resp_len, |
921 | const struct ieee80211_csa_settings *csa, |
922 | const struct ieee80211_color_change_settings *cca, |
923 | struct ieee80211_link_data *link) |
924 | { |
925 | struct probe_resp *new, *old; |
926 | |
927 | if (!resp || !resp_len) |
928 | return 1; |
929 | |
930 | old = sdata_dereference(link->u.ap.probe_resp, sdata); |
931 | |
932 | new = kzalloc(size: sizeof(struct probe_resp) + resp_len, GFP_KERNEL); |
933 | if (!new) |
934 | return -ENOMEM; |
935 | |
936 | new->len = resp_len; |
937 | memcpy(new->data, resp, resp_len); |
938 | |
939 | if (csa) |
940 | memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp, |
941 | csa->n_counter_offsets_presp * |
942 | sizeof(new->cntdwn_counter_offsets[0])); |
943 | else if (cca) |
944 | new->cntdwn_counter_offsets[0] = cca->counter_offset_presp; |
945 | |
946 | rcu_assign_pointer(link->u.ap.probe_resp, new); |
947 | if (old) |
948 | kfree_rcu(old, rcu_head); |
949 | |
950 | return 0; |
951 | } |
952 | |
953 | static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata, |
954 | struct cfg80211_fils_discovery *params, |
955 | struct ieee80211_link_data *link, |
956 | struct ieee80211_bss_conf *link_conf) |
957 | { |
958 | struct fils_discovery_data *new, *old = NULL; |
959 | struct ieee80211_fils_discovery *fd; |
960 | |
961 | if (!params->update) |
962 | return 0; |
963 | |
964 | fd = &link_conf->fils_discovery; |
965 | fd->min_interval = params->min_interval; |
966 | fd->max_interval = params->max_interval; |
967 | |
968 | old = sdata_dereference(link->u.ap.fils_discovery, sdata); |
969 | if (old) |
970 | kfree_rcu(old, rcu_head); |
971 | |
972 | if (params->tmpl && params->tmpl_len) { |
973 | new = kzalloc(size: sizeof(*new) + params->tmpl_len, GFP_KERNEL); |
974 | if (!new) |
975 | return -ENOMEM; |
976 | new->len = params->tmpl_len; |
977 | memcpy(new->data, params->tmpl, params->tmpl_len); |
978 | rcu_assign_pointer(link->u.ap.fils_discovery, new); |
979 | } else { |
980 | RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); |
981 | } |
982 | |
983 | return BSS_CHANGED_FILS_DISCOVERY; |
984 | } |
985 | |
986 | static int |
987 | ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata, |
988 | struct cfg80211_unsol_bcast_probe_resp *params, |
989 | struct ieee80211_link_data *link, |
990 | struct ieee80211_bss_conf *link_conf) |
991 | { |
992 | struct unsol_bcast_probe_resp_data *new, *old = NULL; |
993 | |
994 | if (!params->update) |
995 | return 0; |
996 | |
997 | link_conf->unsol_bcast_probe_resp_interval = params->interval; |
998 | |
999 | old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata); |
1000 | if (old) |
1001 | kfree_rcu(old, rcu_head); |
1002 | |
1003 | if (params->tmpl && params->tmpl_len) { |
1004 | new = kzalloc(size: sizeof(*new) + params->tmpl_len, GFP_KERNEL); |
1005 | if (!new) |
1006 | return -ENOMEM; |
1007 | new->len = params->tmpl_len; |
1008 | memcpy(new->data, params->tmpl, params->tmpl_len); |
1009 | rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new); |
1010 | } else { |
1011 | RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); |
1012 | } |
1013 | |
1014 | return BSS_CHANGED_UNSOL_BCAST_PROBE_RESP; |
1015 | } |
1016 | |
1017 | static int ieee80211_set_ftm_responder_params( |
1018 | struct ieee80211_sub_if_data *sdata, |
1019 | const u8 *lci, size_t lci_len, |
1020 | const u8 *civicloc, size_t civicloc_len, |
1021 | struct ieee80211_bss_conf *link_conf) |
1022 | { |
1023 | struct ieee80211_ftm_responder_params *new, *old; |
1024 | u8 *pos; |
1025 | int len; |
1026 | |
1027 | if (!lci_len && !civicloc_len) |
1028 | return 0; |
1029 | |
1030 | old = link_conf->ftmr_params; |
1031 | len = lci_len + civicloc_len; |
1032 | |
1033 | new = kzalloc(size: sizeof(*new) + len, GFP_KERNEL); |
1034 | if (!new) |
1035 | return -ENOMEM; |
1036 | |
1037 | pos = (u8 *)(new + 1); |
1038 | if (lci_len) { |
1039 | new->lci_len = lci_len; |
1040 | new->lci = pos; |
1041 | memcpy(pos, lci, lci_len); |
1042 | pos += lci_len; |
1043 | } |
1044 | |
1045 | if (civicloc_len) { |
1046 | new->civicloc_len = civicloc_len; |
1047 | new->civicloc = pos; |
1048 | memcpy(pos, civicloc, civicloc_len); |
1049 | pos += civicloc_len; |
1050 | } |
1051 | |
1052 | link_conf->ftmr_params = new; |
1053 | kfree(objp: old); |
1054 | |
1055 | return 0; |
1056 | } |
1057 | |
1058 | static int |
1059 | ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst, |
1060 | struct cfg80211_mbssid_elems *src) |
1061 | { |
1062 | int i, offset = 0; |
1063 | |
1064 | for (i = 0; i < src->cnt; i++) { |
1065 | memcpy(pos + offset, src->elem[i].data, src->elem[i].len); |
1066 | dst->elem[i].len = src->elem[i].len; |
1067 | dst->elem[i].data = pos + offset; |
1068 | offset += dst->elem[i].len; |
1069 | } |
1070 | dst->cnt = src->cnt; |
1071 | |
1072 | return offset; |
1073 | } |
1074 | |
1075 | static int |
1076 | ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst, |
1077 | struct cfg80211_rnr_elems *src) |
1078 | { |
1079 | int i, offset = 0; |
1080 | |
1081 | for (i = 0; i < src->cnt; i++) { |
1082 | memcpy(pos + offset, src->elem[i].data, src->elem[i].len); |
1083 | dst->elem[i].len = src->elem[i].len; |
1084 | dst->elem[i].data = pos + offset; |
1085 | offset += dst->elem[i].len; |
1086 | } |
1087 | dst->cnt = src->cnt; |
1088 | |
1089 | return offset; |
1090 | } |
1091 | |
1092 | static int |
1093 | ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, |
1094 | struct ieee80211_link_data *link, |
1095 | struct cfg80211_beacon_data *params, |
1096 | const struct ieee80211_csa_settings *csa, |
1097 | const struct ieee80211_color_change_settings *cca, |
1098 | u64 *changed) |
1099 | { |
1100 | struct cfg80211_mbssid_elems *mbssid = NULL; |
1101 | struct cfg80211_rnr_elems *rnr = NULL; |
1102 | struct beacon_data *new, *old; |
1103 | int new_head_len, new_tail_len; |
1104 | int size, err; |
1105 | u64 _changed = BSS_CHANGED_BEACON; |
1106 | struct ieee80211_bss_conf *link_conf = link->conf; |
1107 | |
1108 | old = sdata_dereference(link->u.ap.beacon, sdata); |
1109 | |
1110 | /* Need to have a beacon head if we don't have one yet */ |
1111 | if (!params->head && !old) |
1112 | return -EINVAL; |
1113 | |
1114 | /* new or old head? */ |
1115 | if (params->head) |
1116 | new_head_len = params->head_len; |
1117 | else |
1118 | new_head_len = old->head_len; |
1119 | |
1120 | /* new or old tail? */ |
1121 | if (params->tail || !old) |
1122 | /* params->tail_len will be zero for !params->tail */ |
1123 | new_tail_len = params->tail_len; |
1124 | else |
1125 | new_tail_len = old->tail_len; |
1126 | |
1127 | size = sizeof(*new) + new_head_len + new_tail_len; |
1128 | |
1129 | /* new or old multiple BSSID elements? */ |
1130 | if (params->mbssid_ies) { |
1131 | mbssid = params->mbssid_ies; |
1132 | size += struct_size(new->mbssid_ies, elem, mbssid->cnt); |
1133 | if (params->rnr_ies) { |
1134 | rnr = params->rnr_ies; |
1135 | size += struct_size(new->rnr_ies, elem, rnr->cnt); |
1136 | } |
1137 | size += ieee80211_get_mbssid_beacon_len(elems: mbssid, rnr_elems: rnr, |
1138 | i: mbssid->cnt); |
1139 | } else if (old && old->mbssid_ies) { |
1140 | mbssid = old->mbssid_ies; |
1141 | size += struct_size(new->mbssid_ies, elem, mbssid->cnt); |
1142 | if (old && old->rnr_ies) { |
1143 | rnr = old->rnr_ies; |
1144 | size += struct_size(new->rnr_ies, elem, rnr->cnt); |
1145 | } |
1146 | size += ieee80211_get_mbssid_beacon_len(elems: mbssid, rnr_elems: rnr, |
1147 | i: mbssid->cnt); |
1148 | } |
1149 | |
1150 | new = kzalloc(size, GFP_KERNEL); |
1151 | if (!new) |
1152 | return -ENOMEM; |
1153 | |
1154 | /* start filling the new info now */ |
1155 | |
1156 | /* |
1157 | * pointers go into the block we allocated, |
1158 | * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies |
1159 | */ |
1160 | new->head = ((u8 *) new) + sizeof(*new); |
1161 | new->tail = new->head + new_head_len; |
1162 | new->head_len = new_head_len; |
1163 | new->tail_len = new_tail_len; |
1164 | /* copy in optional mbssid_ies */ |
1165 | if (mbssid) { |
1166 | u8 *pos = new->tail + new->tail_len; |
1167 | |
1168 | new->mbssid_ies = (void *)pos; |
1169 | pos += struct_size(new->mbssid_ies, elem, mbssid->cnt); |
1170 | pos += ieee80211_copy_mbssid_beacon(pos, dst: new->mbssid_ies, |
1171 | src: mbssid); |
1172 | if (rnr) { |
1173 | new->rnr_ies = (void *)pos; |
1174 | pos += struct_size(new->rnr_ies, elem, rnr->cnt); |
1175 | ieee80211_copy_rnr_beacon(pos, dst: new->rnr_ies, src: rnr); |
1176 | } |
1177 | /* update bssid_indicator */ |
1178 | link_conf->bssid_indicator = |
1179 | ilog2(__roundup_pow_of_two(mbssid->cnt + 1)); |
1180 | } |
1181 | |
1182 | if (csa) { |
1183 | new->cntdwn_current_counter = csa->count; |
1184 | memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon, |
1185 | csa->n_counter_offsets_beacon * |
1186 | sizeof(new->cntdwn_counter_offsets[0])); |
1187 | } else if (cca) { |
1188 | new->cntdwn_current_counter = cca->count; |
1189 | new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon; |
1190 | } |
1191 | |
1192 | /* copy in head */ |
1193 | if (params->head) |
1194 | memcpy(new->head, params->head, new_head_len); |
1195 | else |
1196 | memcpy(new->head, old->head, new_head_len); |
1197 | |
1198 | /* copy in optional tail */ |
1199 | if (params->tail) |
1200 | memcpy(new->tail, params->tail, new_tail_len); |
1201 | else |
1202 | if (old) |
1203 | memcpy(new->tail, old->tail, new_tail_len); |
1204 | |
1205 | err = ieee80211_set_probe_resp(sdata, resp: params->probe_resp, |
1206 | resp_len: params->probe_resp_len, csa, cca, link); |
1207 | if (err < 0) { |
1208 | kfree(objp: new); |
1209 | return err; |
1210 | } |
1211 | if (err == 0) |
1212 | _changed |= BSS_CHANGED_AP_PROBE_RESP; |
1213 | |
1214 | if (params->ftm_responder != -1) { |
1215 | link_conf->ftm_responder = params->ftm_responder; |
1216 | err = ieee80211_set_ftm_responder_params(sdata, |
1217 | lci: params->lci, |
1218 | lci_len: params->lci_len, |
1219 | civicloc: params->civicloc, |
1220 | civicloc_len: params->civicloc_len, |
1221 | link_conf); |
1222 | |
1223 | if (err < 0) { |
1224 | kfree(objp: new); |
1225 | return err; |
1226 | } |
1227 | |
1228 | _changed |= BSS_CHANGED_FTM_RESPONDER; |
1229 | } |
1230 | |
1231 | rcu_assign_pointer(link->u.ap.beacon, new); |
1232 | sdata->u.ap.active = true; |
1233 | |
1234 | if (old) |
1235 | kfree_rcu(old, rcu_head); |
1236 | |
1237 | *changed |= _changed; |
1238 | return 0; |
1239 | } |
1240 | |
1241 | static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, |
1242 | struct cfg80211_ap_settings *params) |
1243 | { |
1244 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1245 | struct ieee80211_local *local = sdata->local; |
1246 | struct beacon_data *old; |
1247 | struct ieee80211_sub_if_data *vlan; |
1248 | u64 changed = BSS_CHANGED_BEACON_INT | |
1249 | BSS_CHANGED_BEACON_ENABLED | |
1250 | BSS_CHANGED_BEACON | |
1251 | BSS_CHANGED_P2P_PS | |
1252 | BSS_CHANGED_TXPOWER | |
1253 | BSS_CHANGED_TWT; |
1254 | int i, err; |
1255 | int prev_beacon_int; |
1256 | unsigned int link_id = params->beacon.link_id; |
1257 | struct ieee80211_link_data *link; |
1258 | struct ieee80211_bss_conf *link_conf; |
1259 | |
1260 | lockdep_assert_wiphy(local->hw.wiphy); |
1261 | |
1262 | link = sdata_dereference(sdata->link[link_id], sdata); |
1263 | if (!link) |
1264 | return -ENOLINK; |
1265 | |
1266 | link_conf = link->conf; |
1267 | |
1268 | old = sdata_dereference(link->u.ap.beacon, sdata); |
1269 | if (old) |
1270 | return -EALREADY; |
1271 | |
1272 | if (params->smps_mode != NL80211_SMPS_OFF) |
1273 | return -ENOTSUPP; |
1274 | |
1275 | link->smps_mode = IEEE80211_SMPS_OFF; |
1276 | |
1277 | link->needed_rx_chains = sdata->local->rx_chains; |
1278 | |
1279 | prev_beacon_int = link_conf->beacon_int; |
1280 | link_conf->beacon_int = params->beacon_interval; |
1281 | |
1282 | if (params->ht_cap) |
1283 | link_conf->ht_ldpc = |
1284 | params->ht_cap->cap_info & |
1285 | cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING); |
1286 | |
1287 | if (params->vht_cap) { |
1288 | link_conf->vht_ldpc = |
1289 | params->vht_cap->vht_cap_info & |
1290 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC); |
1291 | link_conf->vht_su_beamformer = |
1292 | params->vht_cap->vht_cap_info & |
1293 | cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE); |
1294 | link_conf->vht_su_beamformee = |
1295 | params->vht_cap->vht_cap_info & |
1296 | cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE); |
1297 | link_conf->vht_mu_beamformer = |
1298 | params->vht_cap->vht_cap_info & |
1299 | cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE); |
1300 | link_conf->vht_mu_beamformee = |
1301 | params->vht_cap->vht_cap_info & |
1302 | cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); |
1303 | } |
1304 | |
1305 | if (params->he_cap && params->he_oper) { |
1306 | link_conf->he_support = true; |
1307 | link_conf->htc_trig_based_pkt_ext = |
1308 | le32_get_bits(v: params->he_oper->he_oper_params, |
1309 | IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); |
1310 | link_conf->frame_time_rts_th = |
1311 | le32_get_bits(v: params->he_oper->he_oper_params, |
1312 | IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); |
1313 | changed |= BSS_CHANGED_HE_OBSS_PD; |
1314 | |
1315 | if (params->beacon.he_bss_color.enabled) |
1316 | changed |= BSS_CHANGED_HE_BSS_COLOR; |
1317 | } |
1318 | |
1319 | if (params->he_cap) { |
1320 | link_conf->he_ldpc = |
1321 | params->he_cap->phy_cap_info[1] & |
1322 | IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD; |
1323 | link_conf->he_su_beamformer = |
1324 | params->he_cap->phy_cap_info[3] & |
1325 | IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER; |
1326 | link_conf->he_su_beamformee = |
1327 | params->he_cap->phy_cap_info[4] & |
1328 | IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE; |
1329 | link_conf->he_mu_beamformer = |
1330 | params->he_cap->phy_cap_info[4] & |
1331 | IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER; |
1332 | link_conf->he_full_ul_mumimo = |
1333 | params->he_cap->phy_cap_info[2] & |
1334 | IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO; |
1335 | } |
1336 | |
1337 | if (params->eht_cap) { |
1338 | if (!link_conf->he_support) |
1339 | return -EOPNOTSUPP; |
1340 | |
1341 | link_conf->eht_support = true; |
1342 | link_conf->eht_puncturing = params->punct_bitmap; |
1343 | changed |= BSS_CHANGED_EHT_PUNCTURING; |
1344 | |
1345 | link_conf->eht_su_beamformer = |
1346 | params->eht_cap->fixed.phy_cap_info[0] & |
1347 | IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER; |
1348 | link_conf->eht_su_beamformee = |
1349 | params->eht_cap->fixed.phy_cap_info[0] & |
1350 | IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE; |
1351 | link_conf->eht_mu_beamformer = |
1352 | params->eht_cap->fixed.phy_cap_info[7] & |
1353 | (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ | |
1354 | IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ | |
1355 | IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ); |
1356 | } else { |
1357 | link_conf->eht_su_beamformer = false; |
1358 | link_conf->eht_su_beamformee = false; |
1359 | link_conf->eht_mu_beamformer = false; |
1360 | } |
1361 | |
1362 | if (sdata->vif.type == NL80211_IFTYPE_AP && |
1363 | params->mbssid_config.tx_wdev) { |
1364 | err = ieee80211_set_ap_mbssid_options(sdata, |
1365 | params: params->mbssid_config, |
1366 | link_conf); |
1367 | if (err) |
1368 | return err; |
1369 | } |
1370 | |
1371 | err = ieee80211_link_use_channel(link, chandef: ¶ms->chandef, |
1372 | mode: IEEE80211_CHANCTX_SHARED); |
1373 | if (!err) |
1374 | ieee80211_link_copy_chanctx_to_vlans(link, clear: false); |
1375 | if (err) { |
1376 | link_conf->beacon_int = prev_beacon_int; |
1377 | return err; |
1378 | } |
1379 | |
1380 | /* |
1381 | * Apply control port protocol, this allows us to |
1382 | * not encrypt dynamic WEP control frames. |
1383 | */ |
1384 | sdata->control_port_protocol = params->crypto.control_port_ethertype; |
1385 | sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; |
1386 | sdata->control_port_over_nl80211 = |
1387 | params->crypto.control_port_over_nl80211; |
1388 | sdata->control_port_no_preauth = |
1389 | params->crypto.control_port_no_preauth; |
1390 | |
1391 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { |
1392 | vlan->control_port_protocol = |
1393 | params->crypto.control_port_ethertype; |
1394 | vlan->control_port_no_encrypt = |
1395 | params->crypto.control_port_no_encrypt; |
1396 | vlan->control_port_over_nl80211 = |
1397 | params->crypto.control_port_over_nl80211; |
1398 | vlan->control_port_no_preauth = |
1399 | params->crypto.control_port_no_preauth; |
1400 | } |
1401 | |
1402 | link_conf->dtim_period = params->dtim_period; |
1403 | link_conf->enable_beacon = true; |
1404 | link_conf->allow_p2p_go_ps = sdata->vif.p2p; |
1405 | link_conf->twt_responder = params->twt_responder; |
1406 | link_conf->he_obss_pd = params->he_obss_pd; |
1407 | link_conf->he_bss_color = params->beacon.he_bss_color; |
1408 | sdata->vif.cfg.s1g = params->chandef.chan->band == |
1409 | NL80211_BAND_S1GHZ; |
1410 | |
1411 | sdata->vif.cfg.ssid_len = params->ssid_len; |
1412 | if (params->ssid_len) |
1413 | memcpy(sdata->vif.cfg.ssid, params->ssid, |
1414 | params->ssid_len); |
1415 | link_conf->hidden_ssid = |
1416 | (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); |
1417 | |
1418 | memset(&link_conf->p2p_noa_attr, 0, |
1419 | sizeof(link_conf->p2p_noa_attr)); |
1420 | link_conf->p2p_noa_attr.oppps_ctwindow = |
1421 | params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
1422 | if (params->p2p_opp_ps) |
1423 | link_conf->p2p_noa_attr.oppps_ctwindow |= |
1424 | IEEE80211_P2P_OPPPS_ENABLE_BIT; |
1425 | |
1426 | sdata->beacon_rate_set = false; |
1427 | if (wiphy_ext_feature_isset(wiphy: local->hw.wiphy, |
1428 | ftidx: NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { |
1429 | for (i = 0; i < NUM_NL80211_BANDS; i++) { |
1430 | sdata->beacon_rateidx_mask[i] = |
1431 | params->beacon_rate.control[i].legacy; |
1432 | if (sdata->beacon_rateidx_mask[i]) |
1433 | sdata->beacon_rate_set = true; |
1434 | } |
1435 | } |
1436 | |
1437 | if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) |
1438 | link_conf->beacon_tx_rate = params->beacon_rate; |
1439 | |
1440 | err = ieee80211_assign_beacon(sdata, link, params: ¶ms->beacon, NULL, NULL, |
1441 | changed: &changed); |
1442 | if (err < 0) |
1443 | goto error; |
1444 | |
1445 | err = ieee80211_set_fils_discovery(sdata, params: ¶ms->fils_discovery, |
1446 | link, link_conf); |
1447 | if (err < 0) |
1448 | goto error; |
1449 | changed |= err; |
1450 | |
1451 | err = ieee80211_set_unsol_bcast_probe_resp(sdata, |
1452 | params: ¶ms->unsol_bcast_probe_resp, |
1453 | link, link_conf); |
1454 | if (err < 0) |
1455 | goto error; |
1456 | changed |= err; |
1457 | |
1458 | err = drv_start_ap(local: sdata->local, sdata, link_conf); |
1459 | if (err) { |
1460 | old = sdata_dereference(link->u.ap.beacon, sdata); |
1461 | |
1462 | if (old) |
1463 | kfree_rcu(old, rcu_head); |
1464 | RCU_INIT_POINTER(link->u.ap.beacon, NULL); |
1465 | sdata->u.ap.active = false; |
1466 | goto error; |
1467 | } |
1468 | |
1469 | ieee80211_recalc_dtim(local, sdata); |
1470 | ieee80211_vif_cfg_change_notify(sdata, changed: BSS_CHANGED_SSID); |
1471 | ieee80211_link_info_change_notify(sdata, link, changed); |
1472 | |
1473 | netif_carrier_on(dev); |
1474 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
1475 | netif_carrier_on(dev: vlan->dev); |
1476 | |
1477 | return 0; |
1478 | |
1479 | error: |
1480 | ieee80211_link_release_channel(link); |
1481 | |
1482 | return err; |
1483 | } |
1484 | |
1485 | static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, |
1486 | struct cfg80211_ap_update *params) |
1487 | |
1488 | { |
1489 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1490 | struct ieee80211_link_data *link; |
1491 | struct cfg80211_beacon_data *beacon = ¶ms->beacon; |
1492 | struct beacon_data *old; |
1493 | int err; |
1494 | struct ieee80211_bss_conf *link_conf; |
1495 | u64 changed = 0; |
1496 | |
1497 | lockdep_assert_wiphy(wiphy); |
1498 | |
1499 | link = sdata_dereference(sdata->link[beacon->link_id], sdata); |
1500 | if (!link) |
1501 | return -ENOLINK; |
1502 | |
1503 | link_conf = link->conf; |
1504 | |
1505 | /* don't allow changing the beacon while a countdown is in place - offset |
1506 | * of channel switch counter may change |
1507 | */ |
1508 | if (link_conf->csa_active || link_conf->color_change_active) |
1509 | return -EBUSY; |
1510 | |
1511 | old = sdata_dereference(link->u.ap.beacon, sdata); |
1512 | if (!old) |
1513 | return -ENOENT; |
1514 | |
1515 | err = ieee80211_assign_beacon(sdata, link, params: beacon, NULL, NULL, |
1516 | changed: &changed); |
1517 | if (err < 0) |
1518 | return err; |
1519 | |
1520 | err = ieee80211_set_fils_discovery(sdata, params: ¶ms->fils_discovery, |
1521 | link, link_conf); |
1522 | if (err < 0) |
1523 | return err; |
1524 | changed |= err; |
1525 | |
1526 | err = ieee80211_set_unsol_bcast_probe_resp(sdata, |
1527 | params: ¶ms->unsol_bcast_probe_resp, |
1528 | link, link_conf); |
1529 | if (err < 0) |
1530 | return err; |
1531 | changed |= err; |
1532 | |
1533 | if (beacon->he_bss_color_valid && |
1534 | beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) { |
1535 | link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled; |
1536 | changed |= BSS_CHANGED_HE_BSS_COLOR; |
1537 | } |
1538 | |
1539 | ieee80211_link_info_change_notify(sdata, link, changed); |
1540 | return 0; |
1541 | } |
1542 | |
1543 | static void ieee80211_free_next_beacon(struct ieee80211_link_data *link) |
1544 | { |
1545 | if (!link->u.ap.next_beacon) |
1546 | return; |
1547 | |
1548 | kfree(objp: link->u.ap.next_beacon->mbssid_ies); |
1549 | kfree(objp: link->u.ap.next_beacon->rnr_ies); |
1550 | kfree(objp: link->u.ap.next_beacon); |
1551 | link->u.ap.next_beacon = NULL; |
1552 | } |
1553 | |
1554 | static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, |
1555 | unsigned int link_id) |
1556 | { |
1557 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1558 | struct ieee80211_sub_if_data *vlan; |
1559 | struct ieee80211_local *local = sdata->local; |
1560 | struct beacon_data *old_beacon; |
1561 | struct probe_resp *old_probe_resp; |
1562 | struct fils_discovery_data *old_fils_discovery; |
1563 | struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp; |
1564 | struct cfg80211_chan_def chandef; |
1565 | struct ieee80211_link_data *link = |
1566 | sdata_dereference(sdata->link[link_id], sdata); |
1567 | struct ieee80211_bss_conf *link_conf = link->conf; |
1568 | |
1569 | lockdep_assert_wiphy(local->hw.wiphy); |
1570 | |
1571 | old_beacon = sdata_dereference(link->u.ap.beacon, sdata); |
1572 | if (!old_beacon) |
1573 | return -ENOENT; |
1574 | old_probe_resp = sdata_dereference(link->u.ap.probe_resp, |
1575 | sdata); |
1576 | old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery, |
1577 | sdata); |
1578 | old_unsol_bcast_probe_resp = |
1579 | sdata_dereference(link->u.ap.unsol_bcast_probe_resp, |
1580 | sdata); |
1581 | |
1582 | /* abort any running channel switch or color change */ |
1583 | link_conf->csa_active = false; |
1584 | link_conf->color_change_active = false; |
1585 | if (link->csa_block_tx) { |
1586 | ieee80211_wake_vif_queues(local, sdata, |
1587 | reason: IEEE80211_QUEUE_STOP_REASON_CSA); |
1588 | link->csa_block_tx = false; |
1589 | } |
1590 | |
1591 | ieee80211_free_next_beacon(link); |
1592 | |
1593 | /* turn off carrier for this interface and dependent VLANs */ |
1594 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
1595 | netif_carrier_off(dev: vlan->dev); |
1596 | netif_carrier_off(dev); |
1597 | |
1598 | /* remove beacon and probe response */ |
1599 | sdata->u.ap.active = false; |
1600 | RCU_INIT_POINTER(link->u.ap.beacon, NULL); |
1601 | RCU_INIT_POINTER(link->u.ap.probe_resp, NULL); |
1602 | RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL); |
1603 | RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL); |
1604 | kfree_rcu(old_beacon, rcu_head); |
1605 | if (old_probe_resp) |
1606 | kfree_rcu(old_probe_resp, rcu_head); |
1607 | if (old_fils_discovery) |
1608 | kfree_rcu(old_fils_discovery, rcu_head); |
1609 | if (old_unsol_bcast_probe_resp) |
1610 | kfree_rcu(old_unsol_bcast_probe_resp, rcu_head); |
1611 | |
1612 | kfree(objp: link_conf->ftmr_params); |
1613 | link_conf->ftmr_params = NULL; |
1614 | |
1615 | sdata->vif.mbssid_tx_vif = NULL; |
1616 | link_conf->bssid_index = 0; |
1617 | link_conf->nontransmitted = false; |
1618 | link_conf->ema_ap = false; |
1619 | link_conf->bssid_indicator = 0; |
1620 | |
1621 | __sta_info_flush(sdata, vlans: true); |
1622 | ieee80211_free_keys(sdata, force_synchronize: true); |
1623 | |
1624 | link_conf->enable_beacon = false; |
1625 | sdata->beacon_rate_set = false; |
1626 | sdata->vif.cfg.ssid_len = 0; |
1627 | clear_bit(nr: SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, addr: &sdata->state); |
1628 | ieee80211_link_info_change_notify(sdata, link, |
1629 | changed: BSS_CHANGED_BEACON_ENABLED); |
1630 | |
1631 | if (sdata->wdev.cac_started) { |
1632 | chandef = link_conf->chandef; |
1633 | wiphy_delayed_work_cancel(wiphy, dwork: &link->dfs_cac_timer_work); |
1634 | cfg80211_cac_event(netdev: sdata->dev, chandef: &chandef, |
1635 | event: NL80211_RADAR_CAC_ABORTED, |
1636 | GFP_KERNEL); |
1637 | } |
1638 | |
1639 | drv_stop_ap(local: sdata->local, sdata, link_conf); |
1640 | |
1641 | /* free all potentially still buffered bcast frames */ |
1642 | local->total_ps_buffered -= skb_queue_len(list_: &sdata->u.ap.ps.bc_buf); |
1643 | ieee80211_purge_tx_queue(hw: &local->hw, skbs: &sdata->u.ap.ps.bc_buf); |
1644 | |
1645 | ieee80211_link_copy_chanctx_to_vlans(link, clear: true); |
1646 | ieee80211_link_release_channel(link); |
1647 | |
1648 | return 0; |
1649 | } |
1650 | |
1651 | static int sta_apply_auth_flags(struct ieee80211_local *local, |
1652 | struct sta_info *sta, |
1653 | u32 mask, u32 set) |
1654 | { |
1655 | int ret; |
1656 | |
1657 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
1658 | set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
1659 | !test_sta_flag(sta, flag: WLAN_STA_AUTH)) { |
1660 | ret = sta_info_move_state(sta, new_state: IEEE80211_STA_AUTH); |
1661 | if (ret) |
1662 | return ret; |
1663 | } |
1664 | |
1665 | if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
1666 | set & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
1667 | !test_sta_flag(sta, flag: WLAN_STA_ASSOC)) { |
1668 | /* |
1669 | * When peer becomes associated, init rate control as |
1670 | * well. Some drivers require rate control initialized |
1671 | * before drv_sta_state() is called. |
1672 | */ |
1673 | if (!test_sta_flag(sta, flag: WLAN_STA_RATE_CONTROL)) |
1674 | rate_control_rate_init(sta); |
1675 | |
1676 | ret = sta_info_move_state(sta, new_state: IEEE80211_STA_ASSOC); |
1677 | if (ret) |
1678 | return ret; |
1679 | } |
1680 | |
1681 | if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
1682 | if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) |
1683 | ret = sta_info_move_state(sta, new_state: IEEE80211_STA_AUTHORIZED); |
1684 | else if (test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED)) |
1685 | ret = sta_info_move_state(sta, new_state: IEEE80211_STA_ASSOC); |
1686 | else |
1687 | ret = 0; |
1688 | if (ret) |
1689 | return ret; |
1690 | } |
1691 | |
1692 | if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
1693 | !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && |
1694 | test_sta_flag(sta, flag: WLAN_STA_ASSOC)) { |
1695 | ret = sta_info_move_state(sta, new_state: IEEE80211_STA_AUTH); |
1696 | if (ret) |
1697 | return ret; |
1698 | } |
1699 | |
1700 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
1701 | !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && |
1702 | test_sta_flag(sta, flag: WLAN_STA_AUTH)) { |
1703 | ret = sta_info_move_state(sta, new_state: IEEE80211_STA_NONE); |
1704 | if (ret) |
1705 | return ret; |
1706 | } |
1707 | |
1708 | return 0; |
1709 | } |
1710 | |
1711 | static void sta_apply_mesh_params(struct ieee80211_local *local, |
1712 | struct sta_info *sta, |
1713 | struct station_parameters *params) |
1714 | { |
1715 | #ifdef CONFIG_MAC80211_MESH |
1716 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
1717 | u64 changed = 0; |
1718 | |
1719 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { |
1720 | switch (params->plink_state) { |
1721 | case NL80211_PLINK_ESTAB: |
1722 | if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) |
1723 | changed = mesh_plink_inc_estab_count(sdata); |
1724 | sta->mesh->plink_state = params->plink_state; |
1725 | sta->mesh->aid = params->peer_aid; |
1726 | |
1727 | ieee80211_mps_sta_status_update(sta); |
1728 | changed |= ieee80211_mps_set_sta_local_pm(sta, |
1729 | pm: sdata->u.mesh.mshcfg.power_mode); |
1730 | |
1731 | ewma_mesh_tx_rate_avg_init(e: &sta->mesh->tx_rate_avg); |
1732 | /* init at low value */ |
1733 | ewma_mesh_tx_rate_avg_add(e: &sta->mesh->tx_rate_avg, val: 10); |
1734 | |
1735 | break; |
1736 | case NL80211_PLINK_LISTEN: |
1737 | case NL80211_PLINK_BLOCKED: |
1738 | case NL80211_PLINK_OPN_SNT: |
1739 | case NL80211_PLINK_OPN_RCVD: |
1740 | case NL80211_PLINK_CNF_RCVD: |
1741 | case NL80211_PLINK_HOLDING: |
1742 | if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) |
1743 | changed = mesh_plink_dec_estab_count(sdata); |
1744 | sta->mesh->plink_state = params->plink_state; |
1745 | |
1746 | ieee80211_mps_sta_status_update(sta); |
1747 | changed |= ieee80211_mps_set_sta_local_pm(sta, |
1748 | pm: NL80211_MESH_POWER_UNKNOWN); |
1749 | break; |
1750 | default: |
1751 | /* nothing */ |
1752 | break; |
1753 | } |
1754 | } |
1755 | |
1756 | switch (params->plink_action) { |
1757 | case NL80211_PLINK_ACTION_NO_ACTION: |
1758 | /* nothing */ |
1759 | break; |
1760 | case NL80211_PLINK_ACTION_OPEN: |
1761 | changed |= mesh_plink_open(sta); |
1762 | break; |
1763 | case NL80211_PLINK_ACTION_BLOCK: |
1764 | changed |= mesh_plink_block(sta); |
1765 | break; |
1766 | } |
1767 | |
1768 | if (params->local_pm) |
1769 | changed |= ieee80211_mps_set_sta_local_pm(sta, |
1770 | pm: params->local_pm); |
1771 | |
1772 | ieee80211_mbss_info_change_notify(sdata, changed); |
1773 | #endif |
1774 | } |
1775 | |
1776 | static int sta_link_apply_parameters(struct ieee80211_local *local, |
1777 | struct sta_info *sta, bool new_link, |
1778 | struct link_station_parameters *params) |
1779 | { |
1780 | int ret = 0; |
1781 | struct ieee80211_supported_band *sband; |
1782 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
1783 | u32 link_id = params->link_id < 0 ? 0 : params->link_id; |
1784 | struct ieee80211_link_data *link = |
1785 | sdata_dereference(sdata->link[link_id], sdata); |
1786 | struct link_sta_info *link_sta = |
1787 | rcu_dereference_protected(sta->link[link_id], |
1788 | lockdep_is_held(&local->hw.wiphy->mtx)); |
1789 | |
1790 | /* |
1791 | * If there are no changes, then accept a link that doesn't exist, |
1792 | * unless it's a new link. |
1793 | */ |
1794 | if (params->link_id < 0 && !new_link && |
1795 | !params->link_mac && !params->txpwr_set && |
1796 | !params->supported_rates_len && |
1797 | !params->ht_capa && !params->vht_capa && |
1798 | !params->he_capa && !params->eht_capa && |
1799 | !params->opmode_notif_used) |
1800 | return 0; |
1801 | |
1802 | if (!link || !link_sta) |
1803 | return -EINVAL; |
1804 | |
1805 | sband = ieee80211_get_link_sband(link); |
1806 | if (!sband) |
1807 | return -EINVAL; |
1808 | |
1809 | if (params->link_mac) { |
1810 | if (new_link) { |
1811 | memcpy(link_sta->addr, params->link_mac, ETH_ALEN); |
1812 | memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN); |
1813 | } else if (!ether_addr_equal(addr1: link_sta->addr, |
1814 | addr2: params->link_mac)) { |
1815 | return -EINVAL; |
1816 | } |
1817 | } else if (new_link) { |
1818 | return -EINVAL; |
1819 | } |
1820 | |
1821 | if (params->txpwr_set) { |
1822 | link_sta->pub->txpwr.type = params->txpwr.type; |
1823 | if (params->txpwr.type == NL80211_TX_POWER_LIMITED) |
1824 | link_sta->pub->txpwr.power = params->txpwr.power; |
1825 | ret = drv_sta_set_txpwr(local, sdata, sta); |
1826 | if (ret) |
1827 | return ret; |
1828 | } |
1829 | |
1830 | if (params->supported_rates && |
1831 | params->supported_rates_len) { |
1832 | ieee80211_parse_bitrates(width: link->conf->chandef.width, |
1833 | sband, srates: params->supported_rates, |
1834 | srates_len: params->supported_rates_len, |
1835 | rates: &link_sta->pub->supp_rates[sband->band]); |
1836 | } |
1837 | |
1838 | if (params->ht_capa) |
1839 | ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, |
1840 | ht_cap_ie: params->ht_capa, link_sta); |
1841 | |
1842 | /* VHT can override some HT caps such as the A-MSDU max length */ |
1843 | if (params->vht_capa) |
1844 | ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, |
1845 | vht_cap_ie: params->vht_capa, NULL, |
1846 | link_sta); |
1847 | |
1848 | if (params->he_capa) |
1849 | ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, |
1850 | he_cap_ie: (void *)params->he_capa, |
1851 | he_cap_len: params->he_capa_len, |
1852 | he_6ghz_capa: (void *)params->he_6ghz_capa, |
1853 | link_sta); |
1854 | |
1855 | if (params->he_capa && params->eht_capa) |
1856 | ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, |
1857 | he_cap_ie: (u8 *)params->he_capa, |
1858 | he_cap_len: params->he_capa_len, |
1859 | eht_cap_ie_elem: params->eht_capa, |
1860 | eht_cap_len: params->eht_capa_len, |
1861 | link_sta); |
1862 | |
1863 | if (params->opmode_notif_used) { |
1864 | /* returned value is only needed for rc update, but the |
1865 | * rc isn't initialized here yet, so ignore it |
1866 | */ |
1867 | __ieee80211_vht_handle_opmode(sdata, sta: link_sta, |
1868 | opmode: params->opmode_notif, |
1869 | band: sband->band); |
1870 | } |
1871 | |
1872 | return ret; |
1873 | } |
1874 | |
1875 | static int sta_apply_parameters(struct ieee80211_local *local, |
1876 | struct sta_info *sta, |
1877 | struct station_parameters *params) |
1878 | { |
1879 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
1880 | u32 mask, set; |
1881 | int ret = 0; |
1882 | |
1883 | mask = params->sta_flags_mask; |
1884 | set = params->sta_flags_set; |
1885 | |
1886 | if (ieee80211_vif_is_mesh(vif: &sdata->vif)) { |
1887 | /* |
1888 | * In mesh mode, ASSOCIATED isn't part of the nl80211 |
1889 | * API but must follow AUTHENTICATED for driver state. |
1890 | */ |
1891 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
1892 | mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
1893 | if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
1894 | set |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
1895 | } else if (test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER)) { |
1896 | /* |
1897 | * TDLS -- everything follows authorized, but |
1898 | * only becoming authorized is possible, not |
1899 | * going back |
1900 | */ |
1901 | if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
1902 | set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
1903 | BIT(NL80211_STA_FLAG_ASSOCIATED); |
1904 | mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
1905 | BIT(NL80211_STA_FLAG_ASSOCIATED); |
1906 | } |
1907 | } |
1908 | |
1909 | if (mask & BIT(NL80211_STA_FLAG_WME) && |
1910 | local->hw.queues >= IEEE80211_NUM_ACS) |
1911 | sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); |
1912 | |
1913 | /* auth flags will be set later for TDLS, |
1914 | * and for unassociated stations that move to associated */ |
1915 | if (!test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) && |
1916 | !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && |
1917 | (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { |
1918 | ret = sta_apply_auth_flags(local, sta, mask, set); |
1919 | if (ret) |
1920 | return ret; |
1921 | } |
1922 | |
1923 | if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { |
1924 | if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) |
1925 | set_sta_flag(sta, flag: WLAN_STA_SHORT_PREAMBLE); |
1926 | else |
1927 | clear_sta_flag(sta, flag: WLAN_STA_SHORT_PREAMBLE); |
1928 | } |
1929 | |
1930 | if (mask & BIT(NL80211_STA_FLAG_MFP)) { |
1931 | sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); |
1932 | if (set & BIT(NL80211_STA_FLAG_MFP)) |
1933 | set_sta_flag(sta, flag: WLAN_STA_MFP); |
1934 | else |
1935 | clear_sta_flag(sta, flag: WLAN_STA_MFP); |
1936 | } |
1937 | |
1938 | if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { |
1939 | if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
1940 | set_sta_flag(sta, flag: WLAN_STA_TDLS_PEER); |
1941 | else |
1942 | clear_sta_flag(sta, flag: WLAN_STA_TDLS_PEER); |
1943 | } |
1944 | |
1945 | /* mark TDLS channel switch support, if the AP allows it */ |
1946 | if (test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) && |
1947 | !sdata->deflink.u.mgd.tdls_chan_switch_prohibited && |
1948 | params->ext_capab_len >= 4 && |
1949 | params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) |
1950 | set_sta_flag(sta, flag: WLAN_STA_TDLS_CHAN_SWITCH); |
1951 | |
1952 | if (test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) && |
1953 | !sdata->u.mgd.tdls_wider_bw_prohibited && |
1954 | ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && |
1955 | params->ext_capab_len >= 8 && |
1956 | params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) |
1957 | set_sta_flag(sta, flag: WLAN_STA_TDLS_WIDER_BW); |
1958 | |
1959 | if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { |
1960 | sta->sta.uapsd_queues = params->uapsd_queues; |
1961 | sta->sta.max_sp = params->max_sp; |
1962 | } |
1963 | |
1964 | ieee80211_sta_set_max_amsdu_subframes(sta, ext_capab: params->ext_capab, |
1965 | ext_capab_len: params->ext_capab_len); |
1966 | |
1967 | /* |
1968 | * cfg80211 validates this (1-2007) and allows setting the AID |
1969 | * only when creating a new station entry |
1970 | */ |
1971 | if (params->aid) |
1972 | sta->sta.aid = params->aid; |
1973 | |
1974 | /* |
1975 | * Some of the following updates would be racy if called on an |
1976 | * existing station, via ieee80211_change_station(). However, |
1977 | * all such changes are rejected by cfg80211 except for updates |
1978 | * changing the supported rates on an existing but not yet used |
1979 | * TDLS peer. |
1980 | */ |
1981 | |
1982 | if (params->listen_interval >= 0) |
1983 | sta->listen_interval = params->listen_interval; |
1984 | |
1985 | ret = sta_link_apply_parameters(local, sta, new_link: false, |
1986 | params: ¶ms->link_sta_params); |
1987 | if (ret) |
1988 | return ret; |
1989 | |
1990 | if (params->support_p2p_ps >= 0) |
1991 | sta->sta.support_p2p_ps = params->support_p2p_ps; |
1992 | |
1993 | if (ieee80211_vif_is_mesh(vif: &sdata->vif)) |
1994 | sta_apply_mesh_params(local, sta, params); |
1995 | |
1996 | if (params->airtime_weight) |
1997 | sta->airtime_weight = params->airtime_weight; |
1998 | |
1999 | /* set the STA state after all sta info from usermode has been set */ |
2000 | if (test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) || |
2001 | set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { |
2002 | ret = sta_apply_auth_flags(local, sta, mask, set); |
2003 | if (ret) |
2004 | return ret; |
2005 | } |
2006 | |
2007 | /* Mark the STA as MLO if MLD MAC address is available */ |
2008 | if (params->link_sta_params.mld_mac) |
2009 | sta->sta.mlo = true; |
2010 | |
2011 | return 0; |
2012 | } |
2013 | |
2014 | static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, |
2015 | const u8 *mac, |
2016 | struct station_parameters *params) |
2017 | { |
2018 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2019 | struct sta_info *sta; |
2020 | struct ieee80211_sub_if_data *sdata; |
2021 | int err; |
2022 | |
2023 | lockdep_assert_wiphy(local->hw.wiphy); |
2024 | |
2025 | if (params->vlan) { |
2026 | sdata = IEEE80211_DEV_TO_SUB_IF(dev: params->vlan); |
2027 | |
2028 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && |
2029 | sdata->vif.type != NL80211_IFTYPE_AP) |
2030 | return -EINVAL; |
2031 | } else |
2032 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2033 | |
2034 | if (ether_addr_equal(addr1: mac, addr2: sdata->vif.addr)) |
2035 | return -EINVAL; |
2036 | |
2037 | if (!is_valid_ether_addr(addr: mac)) |
2038 | return -EINVAL; |
2039 | |
2040 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && |
2041 | sdata->vif.type == NL80211_IFTYPE_STATION && |
2042 | !sdata->u.mgd.associated) |
2043 | return -EINVAL; |
2044 | |
2045 | /* |
2046 | * If we have a link ID, it can be a non-MLO station on an AP MLD, |
2047 | * but we need to have a link_mac in that case as well, so use the |
2048 | * STA's MAC address in that case. |
2049 | */ |
2050 | if (params->link_sta_params.link_id >= 0) |
2051 | sta = sta_info_alloc_with_link(sdata, mld_addr: mac, |
2052 | link_id: params->link_sta_params.link_id, |
2053 | link_addr: params->link_sta_params.link_mac ?: mac, |
2054 | GFP_KERNEL); |
2055 | else |
2056 | sta = sta_info_alloc(sdata, addr: mac, GFP_KERNEL); |
2057 | |
2058 | if (!sta) |
2059 | return -ENOMEM; |
2060 | |
2061 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
2062 | sta->sta.tdls = true; |
2063 | |
2064 | /* Though the mutex is not needed here (since the station is not |
2065 | * visible yet), sta_apply_parameters (and inner functions) require |
2066 | * the mutex due to other paths. |
2067 | */ |
2068 | err = sta_apply_parameters(local, sta, params); |
2069 | if (err) { |
2070 | sta_info_free(local, sta); |
2071 | return err; |
2072 | } |
2073 | |
2074 | /* |
2075 | * for TDLS and for unassociated station, rate control should be |
2076 | * initialized only when rates are known and station is marked |
2077 | * authorized/associated |
2078 | */ |
2079 | if (!test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER) && |
2080 | test_sta_flag(sta, flag: WLAN_STA_ASSOC)) |
2081 | rate_control_rate_init(sta); |
2082 | |
2083 | return sta_info_insert(sta); |
2084 | } |
2085 | |
2086 | static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, |
2087 | struct station_del_parameters *params) |
2088 | { |
2089 | struct ieee80211_sub_if_data *sdata; |
2090 | |
2091 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2092 | |
2093 | if (params->mac) |
2094 | return sta_info_destroy_addr_bss(sdata, addr: params->mac); |
2095 | |
2096 | sta_info_flush(sdata); |
2097 | return 0; |
2098 | } |
2099 | |
2100 | static int ieee80211_change_station(struct wiphy *wiphy, |
2101 | struct net_device *dev, const u8 *mac, |
2102 | struct station_parameters *params) |
2103 | { |
2104 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2105 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2106 | struct sta_info *sta; |
2107 | struct ieee80211_sub_if_data *vlansdata; |
2108 | enum cfg80211_station_type statype; |
2109 | int err; |
2110 | |
2111 | lockdep_assert_wiphy(local->hw.wiphy); |
2112 | |
2113 | sta = sta_info_get_bss(sdata, addr: mac); |
2114 | if (!sta) |
2115 | return -ENOENT; |
2116 | |
2117 | switch (sdata->vif.type) { |
2118 | case NL80211_IFTYPE_MESH_POINT: |
2119 | if (sdata->u.mesh.user_mpm) |
2120 | statype = CFG80211_STA_MESH_PEER_USER; |
2121 | else |
2122 | statype = CFG80211_STA_MESH_PEER_KERNEL; |
2123 | break; |
2124 | case NL80211_IFTYPE_ADHOC: |
2125 | statype = CFG80211_STA_IBSS; |
2126 | break; |
2127 | case NL80211_IFTYPE_STATION: |
2128 | if (!test_sta_flag(sta, flag: WLAN_STA_TDLS_PEER)) { |
2129 | statype = CFG80211_STA_AP_STA; |
2130 | break; |
2131 | } |
2132 | if (test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED)) |
2133 | statype = CFG80211_STA_TDLS_PEER_ACTIVE; |
2134 | else |
2135 | statype = CFG80211_STA_TDLS_PEER_SETUP; |
2136 | break; |
2137 | case NL80211_IFTYPE_AP: |
2138 | case NL80211_IFTYPE_AP_VLAN: |
2139 | if (test_sta_flag(sta, flag: WLAN_STA_ASSOC)) |
2140 | statype = CFG80211_STA_AP_CLIENT; |
2141 | else |
2142 | statype = CFG80211_STA_AP_CLIENT_UNASSOC; |
2143 | break; |
2144 | default: |
2145 | return -EOPNOTSUPP; |
2146 | } |
2147 | |
2148 | err = cfg80211_check_station_change(wiphy, params, statype); |
2149 | if (err) |
2150 | return err; |
2151 | |
2152 | if (params->vlan && params->vlan != sta->sdata->dev) { |
2153 | vlansdata = IEEE80211_DEV_TO_SUB_IF(dev: params->vlan); |
2154 | |
2155 | if (params->vlan->ieee80211_ptr->use_4addr) { |
2156 | if (vlansdata->u.vlan.sta) |
2157 | return -EBUSY; |
2158 | |
2159 | rcu_assign_pointer(vlansdata->u.vlan.sta, sta); |
2160 | __ieee80211_check_fast_rx_iface(sdata: vlansdata); |
2161 | drv_sta_set_4addr(local, sdata: sta->sdata, sta: &sta->sta, enabled: true); |
2162 | } |
2163 | |
2164 | if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && |
2165 | sta->sdata->u.vlan.sta) { |
2166 | ieee80211_clear_fast_rx(sta); |
2167 | RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); |
2168 | } |
2169 | |
2170 | if (test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED)) |
2171 | ieee80211_vif_dec_num_mcast(sdata: sta->sdata); |
2172 | |
2173 | sta->sdata = vlansdata; |
2174 | ieee80211_check_fast_xmit(sta); |
2175 | |
2176 | if (test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED)) { |
2177 | ieee80211_vif_inc_num_mcast(sdata: sta->sdata); |
2178 | cfg80211_send_layer2_update(dev: sta->sdata->dev, |
2179 | addr: sta->sta.addr); |
2180 | } |
2181 | } |
2182 | |
2183 | err = sta_apply_parameters(local, sta, params); |
2184 | if (err) |
2185 | return err; |
2186 | |
2187 | if (sdata->vif.type == NL80211_IFTYPE_STATION && |
2188 | params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
2189 | ieee80211_recalc_ps(local); |
2190 | ieee80211_recalc_ps_vif(sdata); |
2191 | } |
2192 | |
2193 | return 0; |
2194 | } |
2195 | |
2196 | #ifdef CONFIG_MAC80211_MESH |
2197 | static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, |
2198 | const u8 *dst, const u8 *next_hop) |
2199 | { |
2200 | struct ieee80211_sub_if_data *sdata; |
2201 | struct mesh_path *mpath; |
2202 | struct sta_info *sta; |
2203 | |
2204 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2205 | |
2206 | rcu_read_lock(); |
2207 | sta = sta_info_get(sdata, addr: next_hop); |
2208 | if (!sta) { |
2209 | rcu_read_unlock(); |
2210 | return -ENOENT; |
2211 | } |
2212 | |
2213 | mpath = mesh_path_add(sdata, dst); |
2214 | if (IS_ERR(ptr: mpath)) { |
2215 | rcu_read_unlock(); |
2216 | return PTR_ERR(ptr: mpath); |
2217 | } |
2218 | |
2219 | mesh_path_fix_nexthop(mpath, next_hop: sta); |
2220 | |
2221 | rcu_read_unlock(); |
2222 | return 0; |
2223 | } |
2224 | |
2225 | static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, |
2226 | const u8 *dst) |
2227 | { |
2228 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2229 | |
2230 | if (dst) |
2231 | return mesh_path_del(sdata, addr: dst); |
2232 | |
2233 | mesh_path_flush_by_iface(sdata); |
2234 | return 0; |
2235 | } |
2236 | |
2237 | static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, |
2238 | const u8 *dst, const u8 *next_hop) |
2239 | { |
2240 | struct ieee80211_sub_if_data *sdata; |
2241 | struct mesh_path *mpath; |
2242 | struct sta_info *sta; |
2243 | |
2244 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2245 | |
2246 | rcu_read_lock(); |
2247 | |
2248 | sta = sta_info_get(sdata, addr: next_hop); |
2249 | if (!sta) { |
2250 | rcu_read_unlock(); |
2251 | return -ENOENT; |
2252 | } |
2253 | |
2254 | mpath = mesh_path_lookup(sdata, dst); |
2255 | if (!mpath) { |
2256 | rcu_read_unlock(); |
2257 | return -ENOENT; |
2258 | } |
2259 | |
2260 | mesh_path_fix_nexthop(mpath, next_hop: sta); |
2261 | |
2262 | rcu_read_unlock(); |
2263 | return 0; |
2264 | } |
2265 | |
2266 | static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, |
2267 | struct mpath_info *pinfo) |
2268 | { |
2269 | struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); |
2270 | |
2271 | if (next_hop_sta) |
2272 | memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); |
2273 | else |
2274 | eth_zero_addr(addr: next_hop); |
2275 | |
2276 | memset(pinfo, 0, sizeof(*pinfo)); |
2277 | |
2278 | pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; |
2279 | |
2280 | pinfo->filled = MPATH_INFO_FRAME_QLEN | |
2281 | MPATH_INFO_SN | |
2282 | MPATH_INFO_METRIC | |
2283 | MPATH_INFO_EXPTIME | |
2284 | MPATH_INFO_DISCOVERY_TIMEOUT | |
2285 | MPATH_INFO_DISCOVERY_RETRIES | |
2286 | MPATH_INFO_FLAGS | |
2287 | MPATH_INFO_HOP_COUNT | |
2288 | MPATH_INFO_PATH_CHANGE; |
2289 | |
2290 | pinfo->frame_qlen = mpath->frame_queue.qlen; |
2291 | pinfo->sn = mpath->sn; |
2292 | pinfo->metric = mpath->metric; |
2293 | if (time_before(jiffies, mpath->exp_time)) |
2294 | pinfo->exptime = jiffies_to_msecs(j: mpath->exp_time - jiffies); |
2295 | pinfo->discovery_timeout = |
2296 | jiffies_to_msecs(j: mpath->discovery_timeout); |
2297 | pinfo->discovery_retries = mpath->discovery_retries; |
2298 | if (mpath->flags & MESH_PATH_ACTIVE) |
2299 | pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; |
2300 | if (mpath->flags & MESH_PATH_RESOLVING) |
2301 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; |
2302 | if (mpath->flags & MESH_PATH_SN_VALID) |
2303 | pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; |
2304 | if (mpath->flags & MESH_PATH_FIXED) |
2305 | pinfo->flags |= NL80211_MPATH_FLAG_FIXED; |
2306 | if (mpath->flags & MESH_PATH_RESOLVED) |
2307 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; |
2308 | pinfo->hop_count = mpath->hop_count; |
2309 | pinfo->path_change_count = mpath->path_change_count; |
2310 | } |
2311 | |
2312 | static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, |
2313 | u8 *dst, u8 *next_hop, struct mpath_info *pinfo) |
2314 | |
2315 | { |
2316 | struct ieee80211_sub_if_data *sdata; |
2317 | struct mesh_path *mpath; |
2318 | |
2319 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2320 | |
2321 | rcu_read_lock(); |
2322 | mpath = mesh_path_lookup(sdata, dst); |
2323 | if (!mpath) { |
2324 | rcu_read_unlock(); |
2325 | return -ENOENT; |
2326 | } |
2327 | memcpy(dst, mpath->dst, ETH_ALEN); |
2328 | mpath_set_pinfo(mpath, next_hop, pinfo); |
2329 | rcu_read_unlock(); |
2330 | return 0; |
2331 | } |
2332 | |
2333 | static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, |
2334 | int idx, u8 *dst, u8 *next_hop, |
2335 | struct mpath_info *pinfo) |
2336 | { |
2337 | struct ieee80211_sub_if_data *sdata; |
2338 | struct mesh_path *mpath; |
2339 | |
2340 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2341 | |
2342 | rcu_read_lock(); |
2343 | mpath = mesh_path_lookup_by_idx(sdata, idx); |
2344 | if (!mpath) { |
2345 | rcu_read_unlock(); |
2346 | return -ENOENT; |
2347 | } |
2348 | memcpy(dst, mpath->dst, ETH_ALEN); |
2349 | mpath_set_pinfo(mpath, next_hop, pinfo); |
2350 | rcu_read_unlock(); |
2351 | return 0; |
2352 | } |
2353 | |
2354 | static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, |
2355 | struct mpath_info *pinfo) |
2356 | { |
2357 | memset(pinfo, 0, sizeof(*pinfo)); |
2358 | memcpy(mpp, mpath->mpp, ETH_ALEN); |
2359 | |
2360 | pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; |
2361 | } |
2362 | |
2363 | static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, |
2364 | u8 *dst, u8 *mpp, struct mpath_info *pinfo) |
2365 | |
2366 | { |
2367 | struct ieee80211_sub_if_data *sdata; |
2368 | struct mesh_path *mpath; |
2369 | |
2370 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2371 | |
2372 | rcu_read_lock(); |
2373 | mpath = mpp_path_lookup(sdata, dst); |
2374 | if (!mpath) { |
2375 | rcu_read_unlock(); |
2376 | return -ENOENT; |
2377 | } |
2378 | memcpy(dst, mpath->dst, ETH_ALEN); |
2379 | mpp_set_pinfo(mpath, mpp, pinfo); |
2380 | rcu_read_unlock(); |
2381 | return 0; |
2382 | } |
2383 | |
2384 | static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, |
2385 | int idx, u8 *dst, u8 *mpp, |
2386 | struct mpath_info *pinfo) |
2387 | { |
2388 | struct ieee80211_sub_if_data *sdata; |
2389 | struct mesh_path *mpath; |
2390 | |
2391 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2392 | |
2393 | rcu_read_lock(); |
2394 | mpath = mpp_path_lookup_by_idx(sdata, idx); |
2395 | if (!mpath) { |
2396 | rcu_read_unlock(); |
2397 | return -ENOENT; |
2398 | } |
2399 | memcpy(dst, mpath->dst, ETH_ALEN); |
2400 | mpp_set_pinfo(mpath, mpp, pinfo); |
2401 | rcu_read_unlock(); |
2402 | return 0; |
2403 | } |
2404 | |
2405 | static int ieee80211_get_mesh_config(struct wiphy *wiphy, |
2406 | struct net_device *dev, |
2407 | struct mesh_config *conf) |
2408 | { |
2409 | struct ieee80211_sub_if_data *sdata; |
2410 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2411 | |
2412 | memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); |
2413 | return 0; |
2414 | } |
2415 | |
2416 | static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) |
2417 | { |
2418 | return (mask >> (parm-1)) & 0x1; |
2419 | } |
2420 | |
2421 | static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, |
2422 | const struct mesh_setup *setup) |
2423 | { |
2424 | u8 *new_ie; |
2425 | struct ieee80211_sub_if_data *sdata = container_of(ifmsh, |
2426 | struct ieee80211_sub_if_data, u.mesh); |
2427 | int i; |
2428 | |
2429 | /* allocate information elements */ |
2430 | new_ie = NULL; |
2431 | |
2432 | if (setup->ie_len) { |
2433 | new_ie = kmemdup(p: setup->ie, size: setup->ie_len, |
2434 | GFP_KERNEL); |
2435 | if (!new_ie) |
2436 | return -ENOMEM; |
2437 | } |
2438 | ifmsh->ie_len = setup->ie_len; |
2439 | ifmsh->ie = new_ie; |
2440 | |
2441 | /* now copy the rest of the setup parameters */ |
2442 | ifmsh->mesh_id_len = setup->mesh_id_len; |
2443 | memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); |
2444 | ifmsh->mesh_sp_id = setup->sync_method; |
2445 | ifmsh->mesh_pp_id = setup->path_sel_proto; |
2446 | ifmsh->mesh_pm_id = setup->path_metric; |
2447 | ifmsh->user_mpm = setup->user_mpm; |
2448 | ifmsh->mesh_auth_id = setup->auth_id; |
2449 | ifmsh->security = IEEE80211_MESH_SEC_NONE; |
2450 | ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; |
2451 | if (setup->is_authenticated) |
2452 | ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; |
2453 | if (setup->is_secure) |
2454 | ifmsh->security |= IEEE80211_MESH_SEC_SECURED; |
2455 | |
2456 | /* mcast rate setting in Mesh Node */ |
2457 | memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, |
2458 | sizeof(setup->mcast_rate)); |
2459 | sdata->vif.bss_conf.basic_rates = setup->basic_rates; |
2460 | |
2461 | sdata->vif.bss_conf.beacon_int = setup->beacon_interval; |
2462 | sdata->vif.bss_conf.dtim_period = setup->dtim_period; |
2463 | |
2464 | sdata->beacon_rate_set = false; |
2465 | if (wiphy_ext_feature_isset(wiphy: sdata->local->hw.wiphy, |
2466 | ftidx: NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { |
2467 | for (i = 0; i < NUM_NL80211_BANDS; i++) { |
2468 | sdata->beacon_rateidx_mask[i] = |
2469 | setup->beacon_rate.control[i].legacy; |
2470 | if (sdata->beacon_rateidx_mask[i]) |
2471 | sdata->beacon_rate_set = true; |
2472 | } |
2473 | } |
2474 | |
2475 | return 0; |
2476 | } |
2477 | |
2478 | static int ieee80211_update_mesh_config(struct wiphy *wiphy, |
2479 | struct net_device *dev, u32 mask, |
2480 | const struct mesh_config *nconf) |
2481 | { |
2482 | struct mesh_config *conf; |
2483 | struct ieee80211_sub_if_data *sdata; |
2484 | struct ieee80211_if_mesh *ifmsh; |
2485 | |
2486 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2487 | ifmsh = &sdata->u.mesh; |
2488 | |
2489 | /* Set the config options which we are interested in setting */ |
2490 | conf = &(sdata->u.mesh.mshcfg); |
2491 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_RETRY_TIMEOUT, mask)) |
2492 | conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; |
2493 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) |
2494 | conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; |
2495 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) |
2496 | conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; |
2497 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_MAX_PEER_LINKS, mask)) |
2498 | conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; |
2499 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_MAX_RETRIES, mask)) |
2500 | conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; |
2501 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_TTL, mask)) |
2502 | conf->dot11MeshTTL = nconf->dot11MeshTTL; |
2503 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_ELEMENT_TTL, mask)) |
2504 | conf->element_ttl = nconf->element_ttl; |
2505 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { |
2506 | if (ifmsh->user_mpm) |
2507 | return -EBUSY; |
2508 | conf->auto_open_plinks = nconf->auto_open_plinks; |
2509 | } |
2510 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) |
2511 | conf->dot11MeshNbrOffsetMaxNeighbor = |
2512 | nconf->dot11MeshNbrOffsetMaxNeighbor; |
2513 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) |
2514 | conf->dot11MeshHWMPmaxPREQretries = |
2515 | nconf->dot11MeshHWMPmaxPREQretries; |
2516 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) |
2517 | conf->path_refresh_time = nconf->path_refresh_time; |
2518 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) |
2519 | conf->min_discovery_timeout = nconf->min_discovery_timeout; |
2520 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) |
2521 | conf->dot11MeshHWMPactivePathTimeout = |
2522 | nconf->dot11MeshHWMPactivePathTimeout; |
2523 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) |
2524 | conf->dot11MeshHWMPpreqMinInterval = |
2525 | nconf->dot11MeshHWMPpreqMinInterval; |
2526 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) |
2527 | conf->dot11MeshHWMPperrMinInterval = |
2528 | nconf->dot11MeshHWMPperrMinInterval; |
2529 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
2530 | mask)) |
2531 | conf->dot11MeshHWMPnetDiameterTraversalTime = |
2532 | nconf->dot11MeshHWMPnetDiameterTraversalTime; |
2533 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { |
2534 | conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; |
2535 | ieee80211_mesh_root_setup(ifmsh); |
2536 | } |
2537 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { |
2538 | /* our current gate announcement implementation rides on root |
2539 | * announcements, so require this ifmsh to also be a root node |
2540 | * */ |
2541 | if (nconf->dot11MeshGateAnnouncementProtocol && |
2542 | !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { |
2543 | conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; |
2544 | ieee80211_mesh_root_setup(ifmsh); |
2545 | } |
2546 | conf->dot11MeshGateAnnouncementProtocol = |
2547 | nconf->dot11MeshGateAnnouncementProtocol; |
2548 | } |
2549 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) |
2550 | conf->dot11MeshHWMPRannInterval = |
2551 | nconf->dot11MeshHWMPRannInterval; |
2552 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_FORWARDING, mask)) |
2553 | conf->dot11MeshForwarding = nconf->dot11MeshForwarding; |
2554 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { |
2555 | /* our RSSI threshold implementation is supported only for |
2556 | * devices that report signal in dBm. |
2557 | */ |
2558 | if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) |
2559 | return -ENOTSUPP; |
2560 | conf->rssi_threshold = nconf->rssi_threshold; |
2561 | } |
2562 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HT_OPMODE, mask)) { |
2563 | conf->ht_opmode = nconf->ht_opmode; |
2564 | sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; |
2565 | ieee80211_link_info_change_notify(sdata, link: &sdata->deflink, |
2566 | changed: BSS_CHANGED_HT); |
2567 | } |
2568 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) |
2569 | conf->dot11MeshHWMPactivePathToRootTimeout = |
2570 | nconf->dot11MeshHWMPactivePathToRootTimeout; |
2571 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) |
2572 | conf->dot11MeshHWMProotInterval = |
2573 | nconf->dot11MeshHWMProotInterval; |
2574 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) |
2575 | conf->dot11MeshHWMPconfirmationInterval = |
2576 | nconf->dot11MeshHWMPconfirmationInterval; |
2577 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_POWER_MODE, mask)) { |
2578 | conf->power_mode = nconf->power_mode; |
2579 | ieee80211_mps_local_status_update(sdata); |
2580 | } |
2581 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_AWAKE_WINDOW, mask)) |
2582 | conf->dot11MeshAwakeWindowDuration = |
2583 | nconf->dot11MeshAwakeWindowDuration; |
2584 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_PLINK_TIMEOUT, mask)) |
2585 | conf->plink_timeout = nconf->plink_timeout; |
2586 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) |
2587 | conf->dot11MeshConnectedToMeshGate = |
2588 | nconf->dot11MeshConnectedToMeshGate; |
2589 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_NOLEARN, mask)) |
2590 | conf->dot11MeshNolearn = nconf->dot11MeshNolearn; |
2591 | if (_chg_mesh_attr(parm: NL80211_MESHCONF_CONNECTED_TO_AS, mask)) |
2592 | conf->dot11MeshConnectedToAuthServer = |
2593 | nconf->dot11MeshConnectedToAuthServer; |
2594 | ieee80211_mbss_info_change_notify(sdata, changed: BSS_CHANGED_BEACON); |
2595 | return 0; |
2596 | } |
2597 | |
2598 | static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, |
2599 | const struct mesh_config *conf, |
2600 | const struct mesh_setup *setup) |
2601 | { |
2602 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2603 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
2604 | int err; |
2605 | |
2606 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
2607 | |
2608 | memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); |
2609 | err = copy_mesh_setup(ifmsh, setup); |
2610 | if (err) |
2611 | return err; |
2612 | |
2613 | sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; |
2614 | |
2615 | /* can mesh use other SMPS modes? */ |
2616 | sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; |
2617 | sdata->deflink.needed_rx_chains = sdata->local->rx_chains; |
2618 | |
2619 | err = ieee80211_link_use_channel(link: &sdata->deflink, chandef: &setup->chandef, |
2620 | mode: IEEE80211_CHANCTX_SHARED); |
2621 | if (err) |
2622 | return err; |
2623 | |
2624 | return ieee80211_start_mesh(sdata); |
2625 | } |
2626 | |
2627 | static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) |
2628 | { |
2629 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2630 | |
2631 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
2632 | |
2633 | ieee80211_stop_mesh(sdata); |
2634 | ieee80211_link_release_channel(link: &sdata->deflink); |
2635 | kfree(objp: sdata->u.mesh.ie); |
2636 | |
2637 | return 0; |
2638 | } |
2639 | #endif |
2640 | |
2641 | static int ieee80211_change_bss(struct wiphy *wiphy, |
2642 | struct net_device *dev, |
2643 | struct bss_parameters *params) |
2644 | { |
2645 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2646 | struct ieee80211_link_data *link; |
2647 | struct ieee80211_supported_band *sband; |
2648 | u64 changed = 0; |
2649 | |
2650 | link = ieee80211_link_or_deflink(sdata, link_id: params->link_id, require_valid: true); |
2651 | if (IS_ERR(ptr: link)) |
2652 | return PTR_ERR(ptr: link); |
2653 | |
2654 | if (!sdata_dereference(link->u.ap.beacon, sdata)) |
2655 | return -ENOENT; |
2656 | |
2657 | sband = ieee80211_get_link_sband(link); |
2658 | if (!sband) |
2659 | return -EINVAL; |
2660 | |
2661 | if (params->basic_rates) { |
2662 | if (!ieee80211_parse_bitrates(width: link->conf->chandef.width, |
2663 | sband: wiphy->bands[sband->band], |
2664 | srates: params->basic_rates, |
2665 | srates_len: params->basic_rates_len, |
2666 | rates: &link->conf->basic_rates)) |
2667 | return -EINVAL; |
2668 | changed |= BSS_CHANGED_BASIC_RATES; |
2669 | ieee80211_check_rate_mask(link); |
2670 | } |
2671 | |
2672 | if (params->use_cts_prot >= 0) { |
2673 | link->conf->use_cts_prot = params->use_cts_prot; |
2674 | changed |= BSS_CHANGED_ERP_CTS_PROT; |
2675 | } |
2676 | if (params->use_short_preamble >= 0) { |
2677 | link->conf->use_short_preamble = params->use_short_preamble; |
2678 | changed |= BSS_CHANGED_ERP_PREAMBLE; |
2679 | } |
2680 | |
2681 | if (!link->conf->use_short_slot && |
2682 | (sband->band == NL80211_BAND_5GHZ || |
2683 | sband->band == NL80211_BAND_6GHZ)) { |
2684 | link->conf->use_short_slot = true; |
2685 | changed |= BSS_CHANGED_ERP_SLOT; |
2686 | } |
2687 | |
2688 | if (params->use_short_slot_time >= 0) { |
2689 | link->conf->use_short_slot = params->use_short_slot_time; |
2690 | changed |= BSS_CHANGED_ERP_SLOT; |
2691 | } |
2692 | |
2693 | if (params->ap_isolate >= 0) { |
2694 | if (params->ap_isolate) |
2695 | sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
2696 | else |
2697 | sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
2698 | ieee80211_check_fast_rx_iface(sdata); |
2699 | } |
2700 | |
2701 | if (params->ht_opmode >= 0) { |
2702 | link->conf->ht_operation_mode = (u16)params->ht_opmode; |
2703 | changed |= BSS_CHANGED_HT; |
2704 | } |
2705 | |
2706 | if (params->p2p_ctwindow >= 0) { |
2707 | link->conf->p2p_noa_attr.oppps_ctwindow &= |
2708 | ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
2709 | link->conf->p2p_noa_attr.oppps_ctwindow |= |
2710 | params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
2711 | changed |= BSS_CHANGED_P2P_PS; |
2712 | } |
2713 | |
2714 | if (params->p2p_opp_ps > 0) { |
2715 | link->conf->p2p_noa_attr.oppps_ctwindow |= |
2716 | IEEE80211_P2P_OPPPS_ENABLE_BIT; |
2717 | changed |= BSS_CHANGED_P2P_PS; |
2718 | } else if (params->p2p_opp_ps == 0) { |
2719 | link->conf->p2p_noa_attr.oppps_ctwindow &= |
2720 | ~IEEE80211_P2P_OPPPS_ENABLE_BIT; |
2721 | changed |= BSS_CHANGED_P2P_PS; |
2722 | } |
2723 | |
2724 | ieee80211_link_info_change_notify(sdata, link, changed); |
2725 | |
2726 | return 0; |
2727 | } |
2728 | |
2729 | static int ieee80211_set_txq_params(struct wiphy *wiphy, |
2730 | struct net_device *dev, |
2731 | struct ieee80211_txq_params *params) |
2732 | { |
2733 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2734 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2735 | struct ieee80211_link_data *link = |
2736 | ieee80211_link_or_deflink(sdata, link_id: params->link_id, require_valid: true); |
2737 | struct ieee80211_tx_queue_params p; |
2738 | |
2739 | if (!local->ops->conf_tx) |
2740 | return -EOPNOTSUPP; |
2741 | |
2742 | if (local->hw.queues < IEEE80211_NUM_ACS) |
2743 | return -EOPNOTSUPP; |
2744 | |
2745 | if (IS_ERR(ptr: link)) |
2746 | return PTR_ERR(ptr: link); |
2747 | |
2748 | memset(&p, 0, sizeof(p)); |
2749 | p.aifs = params->aifs; |
2750 | p.cw_max = params->cwmax; |
2751 | p.cw_min = params->cwmin; |
2752 | p.txop = params->txop; |
2753 | |
2754 | /* |
2755 | * Setting tx queue params disables u-apsd because it's only |
2756 | * called in master mode. |
2757 | */ |
2758 | p.uapsd = false; |
2759 | |
2760 | ieee80211_regulatory_limit_wmm_params(sdata, qparam: &p, ac: params->ac); |
2761 | |
2762 | link->tx_conf[params->ac] = p; |
2763 | if (drv_conf_tx(local, link, ac: params->ac, params: &p)) { |
2764 | wiphy_debug(local->hw.wiphy, |
2765 | "failed to set TX queue parameters for AC %d\n" , |
2766 | params->ac); |
2767 | return -EINVAL; |
2768 | } |
2769 | |
2770 | ieee80211_link_info_change_notify(sdata, link, |
2771 | changed: BSS_CHANGED_QOS); |
2772 | |
2773 | return 0; |
2774 | } |
2775 | |
2776 | #ifdef CONFIG_PM |
2777 | static int ieee80211_suspend(struct wiphy *wiphy, |
2778 | struct cfg80211_wowlan *wowlan) |
2779 | { |
2780 | return __ieee80211_suspend(hw: wiphy_priv(wiphy), wowlan); |
2781 | } |
2782 | |
2783 | static int ieee80211_resume(struct wiphy *wiphy) |
2784 | { |
2785 | return __ieee80211_resume(hw: wiphy_priv(wiphy)); |
2786 | } |
2787 | #else |
2788 | #define ieee80211_suspend NULL |
2789 | #define ieee80211_resume NULL |
2790 | #endif |
2791 | |
2792 | static int ieee80211_scan(struct wiphy *wiphy, |
2793 | struct cfg80211_scan_request *req) |
2794 | { |
2795 | struct ieee80211_sub_if_data *sdata; |
2796 | |
2797 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev: req->wdev); |
2798 | |
2799 | switch (ieee80211_vif_type_p2p(vif: &sdata->vif)) { |
2800 | case NL80211_IFTYPE_STATION: |
2801 | case NL80211_IFTYPE_ADHOC: |
2802 | case NL80211_IFTYPE_MESH_POINT: |
2803 | case NL80211_IFTYPE_P2P_CLIENT: |
2804 | case NL80211_IFTYPE_P2P_DEVICE: |
2805 | break; |
2806 | case NL80211_IFTYPE_P2P_GO: |
2807 | if (sdata->local->ops->hw_scan) |
2808 | break; |
2809 | /* |
2810 | * FIXME: implement NoA while scanning in software, |
2811 | * for now fall through to allow scanning only when |
2812 | * beaconing hasn't been configured yet |
2813 | */ |
2814 | fallthrough; |
2815 | case NL80211_IFTYPE_AP: |
2816 | /* |
2817 | * If the scan has been forced (and the driver supports |
2818 | * forcing), don't care about being beaconing already. |
2819 | * This will create problems to the attached stations (e.g. all |
2820 | * the frames sent while scanning on other channel will be |
2821 | * lost) |
2822 | */ |
2823 | if (sdata->deflink.u.ap.beacon && |
2824 | (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || |
2825 | !(req->flags & NL80211_SCAN_FLAG_AP))) |
2826 | return -EOPNOTSUPP; |
2827 | break; |
2828 | case NL80211_IFTYPE_NAN: |
2829 | default: |
2830 | return -EOPNOTSUPP; |
2831 | } |
2832 | |
2833 | return ieee80211_request_scan(sdata, req); |
2834 | } |
2835 | |
2836 | static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) |
2837 | { |
2838 | ieee80211_scan_cancel(local: wiphy_priv(wiphy)); |
2839 | } |
2840 | |
2841 | static int |
2842 | ieee80211_sched_scan_start(struct wiphy *wiphy, |
2843 | struct net_device *dev, |
2844 | struct cfg80211_sched_scan_request *req) |
2845 | { |
2846 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2847 | |
2848 | if (!sdata->local->ops->sched_scan_start) |
2849 | return -EOPNOTSUPP; |
2850 | |
2851 | return ieee80211_request_sched_scan_start(sdata, req); |
2852 | } |
2853 | |
2854 | static int |
2855 | ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, |
2856 | u64 reqid) |
2857 | { |
2858 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2859 | |
2860 | if (!local->ops->sched_scan_stop) |
2861 | return -EOPNOTSUPP; |
2862 | |
2863 | return ieee80211_request_sched_scan_stop(local); |
2864 | } |
2865 | |
2866 | static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, |
2867 | struct cfg80211_auth_request *req) |
2868 | { |
2869 | return ieee80211_mgd_auth(sdata: IEEE80211_DEV_TO_SUB_IF(dev), req); |
2870 | } |
2871 | |
2872 | static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, |
2873 | struct cfg80211_assoc_request *req) |
2874 | { |
2875 | return ieee80211_mgd_assoc(sdata: IEEE80211_DEV_TO_SUB_IF(dev), req); |
2876 | } |
2877 | |
2878 | static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, |
2879 | struct cfg80211_deauth_request *req) |
2880 | { |
2881 | return ieee80211_mgd_deauth(sdata: IEEE80211_DEV_TO_SUB_IF(dev), req); |
2882 | } |
2883 | |
2884 | static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, |
2885 | struct cfg80211_disassoc_request *req) |
2886 | { |
2887 | return ieee80211_mgd_disassoc(sdata: IEEE80211_DEV_TO_SUB_IF(dev), req); |
2888 | } |
2889 | |
2890 | static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
2891 | struct cfg80211_ibss_params *params) |
2892 | { |
2893 | return ieee80211_ibss_join(sdata: IEEE80211_DEV_TO_SUB_IF(dev), params); |
2894 | } |
2895 | |
2896 | static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
2897 | { |
2898 | return ieee80211_ibss_leave(sdata: IEEE80211_DEV_TO_SUB_IF(dev)); |
2899 | } |
2900 | |
2901 | static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, |
2902 | struct ocb_setup *setup) |
2903 | { |
2904 | return ieee80211_ocb_join(sdata: IEEE80211_DEV_TO_SUB_IF(dev), setup); |
2905 | } |
2906 | |
2907 | static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) |
2908 | { |
2909 | return ieee80211_ocb_leave(sdata: IEEE80211_DEV_TO_SUB_IF(dev)); |
2910 | } |
2911 | |
2912 | static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, |
2913 | int rate[NUM_NL80211_BANDS]) |
2914 | { |
2915 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2916 | |
2917 | memcpy(sdata->vif.bss_conf.mcast_rate, rate, |
2918 | sizeof(int) * NUM_NL80211_BANDS); |
2919 | |
2920 | ieee80211_link_info_change_notify(sdata, link: &sdata->deflink, |
2921 | changed: BSS_CHANGED_MCAST_RATE); |
2922 | |
2923 | return 0; |
2924 | } |
2925 | |
2926 | static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
2927 | { |
2928 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2929 | int err; |
2930 | |
2931 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { |
2932 | ieee80211_check_fast_xmit_all(local); |
2933 | |
2934 | err = drv_set_frag_threshold(local, value: wiphy->frag_threshold); |
2935 | |
2936 | if (err) { |
2937 | ieee80211_check_fast_xmit_all(local); |
2938 | return err; |
2939 | } |
2940 | } |
2941 | |
2942 | if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || |
2943 | (changed & WIPHY_PARAM_DYN_ACK)) { |
2944 | s16 coverage_class; |
2945 | |
2946 | coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? |
2947 | wiphy->coverage_class : -1; |
2948 | err = drv_set_coverage_class(local, value: coverage_class); |
2949 | |
2950 | if (err) |
2951 | return err; |
2952 | } |
2953 | |
2954 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
2955 | err = drv_set_rts_threshold(local, value: wiphy->rts_threshold); |
2956 | |
2957 | if (err) |
2958 | return err; |
2959 | } |
2960 | |
2961 | if (changed & WIPHY_PARAM_RETRY_SHORT) { |
2962 | if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) |
2963 | return -EINVAL; |
2964 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
2965 | } |
2966 | if (changed & WIPHY_PARAM_RETRY_LONG) { |
2967 | if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) |
2968 | return -EINVAL; |
2969 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
2970 | } |
2971 | if (changed & |
2972 | (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) |
2973 | ieee80211_hw_config(local, changed: IEEE80211_CONF_CHANGE_RETRY_LIMITS); |
2974 | |
2975 | if (changed & (WIPHY_PARAM_TXQ_LIMIT | |
2976 | WIPHY_PARAM_TXQ_MEMORY_LIMIT | |
2977 | WIPHY_PARAM_TXQ_QUANTUM)) |
2978 | ieee80211_txq_set_params(local); |
2979 | |
2980 | return 0; |
2981 | } |
2982 | |
2983 | static int ieee80211_set_tx_power(struct wiphy *wiphy, |
2984 | struct wireless_dev *wdev, |
2985 | enum nl80211_tx_power_setting type, int mbm) |
2986 | { |
2987 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2988 | struct ieee80211_sub_if_data *sdata; |
2989 | enum nl80211_tx_power_setting txp_type = type; |
2990 | bool update_txp_type = false; |
2991 | bool has_monitor = false; |
2992 | |
2993 | lockdep_assert_wiphy(local->hw.wiphy); |
2994 | |
2995 | if (wdev) { |
2996 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
2997 | |
2998 | if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
2999 | sdata = wiphy_dereference(local->hw.wiphy, |
3000 | local->monitor_sdata); |
3001 | if (!sdata) |
3002 | return -EOPNOTSUPP; |
3003 | } |
3004 | |
3005 | switch (type) { |
3006 | case NL80211_TX_POWER_AUTOMATIC: |
3007 | sdata->deflink.user_power_level = |
3008 | IEEE80211_UNSET_POWER_LEVEL; |
3009 | txp_type = NL80211_TX_POWER_LIMITED; |
3010 | break; |
3011 | case NL80211_TX_POWER_LIMITED: |
3012 | case NL80211_TX_POWER_FIXED: |
3013 | if (mbm < 0 || (mbm % 100)) |
3014 | return -EOPNOTSUPP; |
3015 | sdata->deflink.user_power_level = MBM_TO_DBM(mbm); |
3016 | break; |
3017 | } |
3018 | |
3019 | if (txp_type != sdata->vif.bss_conf.txpower_type) { |
3020 | update_txp_type = true; |
3021 | sdata->vif.bss_conf.txpower_type = txp_type; |
3022 | } |
3023 | |
3024 | ieee80211_recalc_txpower(sdata, update_bss: update_txp_type); |
3025 | |
3026 | return 0; |
3027 | } |
3028 | |
3029 | switch (type) { |
3030 | case NL80211_TX_POWER_AUTOMATIC: |
3031 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
3032 | txp_type = NL80211_TX_POWER_LIMITED; |
3033 | break; |
3034 | case NL80211_TX_POWER_LIMITED: |
3035 | case NL80211_TX_POWER_FIXED: |
3036 | if (mbm < 0 || (mbm % 100)) |
3037 | return -EOPNOTSUPP; |
3038 | local->user_power_level = MBM_TO_DBM(mbm); |
3039 | break; |
3040 | } |
3041 | |
3042 | list_for_each_entry(sdata, &local->interfaces, list) { |
3043 | if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
3044 | has_monitor = true; |
3045 | continue; |
3046 | } |
3047 | sdata->deflink.user_power_level = local->user_power_level; |
3048 | if (txp_type != sdata->vif.bss_conf.txpower_type) |
3049 | update_txp_type = true; |
3050 | sdata->vif.bss_conf.txpower_type = txp_type; |
3051 | } |
3052 | list_for_each_entry(sdata, &local->interfaces, list) { |
3053 | if (sdata->vif.type == NL80211_IFTYPE_MONITOR) |
3054 | continue; |
3055 | ieee80211_recalc_txpower(sdata, update_bss: update_txp_type); |
3056 | } |
3057 | |
3058 | if (has_monitor) { |
3059 | sdata = wiphy_dereference(local->hw.wiphy, |
3060 | local->monitor_sdata); |
3061 | if (sdata) { |
3062 | sdata->deflink.user_power_level = local->user_power_level; |
3063 | if (txp_type != sdata->vif.bss_conf.txpower_type) |
3064 | update_txp_type = true; |
3065 | sdata->vif.bss_conf.txpower_type = txp_type; |
3066 | |
3067 | ieee80211_recalc_txpower(sdata, update_bss: update_txp_type); |
3068 | } |
3069 | } |
3070 | |
3071 | return 0; |
3072 | } |
3073 | |
3074 | static int ieee80211_get_tx_power(struct wiphy *wiphy, |
3075 | struct wireless_dev *wdev, |
3076 | int *dbm) |
3077 | { |
3078 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3079 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
3080 | |
3081 | if (local->ops->get_txpower) |
3082 | return drv_get_txpower(local, sdata, dbm); |
3083 | |
3084 | if (!local->use_chanctx) |
3085 | *dbm = local->hw.conf.power_level; |
3086 | else |
3087 | *dbm = sdata->vif.bss_conf.txpower; |
3088 | |
3089 | /* INT_MIN indicates no power level was set yet */ |
3090 | if (*dbm == INT_MIN) |
3091 | return -EINVAL; |
3092 | |
3093 | return 0; |
3094 | } |
3095 | |
3096 | static void ieee80211_rfkill_poll(struct wiphy *wiphy) |
3097 | { |
3098 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3099 | |
3100 | drv_rfkill_poll(local); |
3101 | } |
3102 | |
3103 | #ifdef CONFIG_NL80211_TESTMODE |
3104 | static int ieee80211_testmode_cmd(struct wiphy *wiphy, |
3105 | struct wireless_dev *wdev, |
3106 | void *data, int len) |
3107 | { |
3108 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3109 | struct ieee80211_vif *vif = NULL; |
3110 | |
3111 | if (!local->ops->testmode_cmd) |
3112 | return -EOPNOTSUPP; |
3113 | |
3114 | if (wdev) { |
3115 | struct ieee80211_sub_if_data *sdata; |
3116 | |
3117 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
3118 | if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) |
3119 | vif = &sdata->vif; |
3120 | } |
3121 | |
3122 | return local->ops->testmode_cmd(&local->hw, vif, data, len); |
3123 | } |
3124 | |
3125 | static int ieee80211_testmode_dump(struct wiphy *wiphy, |
3126 | struct sk_buff *skb, |
3127 | struct netlink_callback *cb, |
3128 | void *data, int len) |
3129 | { |
3130 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3131 | |
3132 | if (!local->ops->testmode_dump) |
3133 | return -EOPNOTSUPP; |
3134 | |
3135 | return local->ops->testmode_dump(&local->hw, skb, cb, data, len); |
3136 | } |
3137 | #endif |
3138 | |
3139 | int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, |
3140 | struct ieee80211_link_data *link, |
3141 | enum ieee80211_smps_mode smps_mode) |
3142 | { |
3143 | const u8 *ap; |
3144 | enum ieee80211_smps_mode old_req; |
3145 | int err; |
3146 | struct sta_info *sta; |
3147 | bool tdls_peer_found = false; |
3148 | |
3149 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
3150 | |
3151 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) |
3152 | return -EINVAL; |
3153 | |
3154 | if (ieee80211_vif_is_mld(vif: &sdata->vif) && |
3155 | !(sdata->vif.active_links & BIT(link->link_id))) |
3156 | return 0; |
3157 | |
3158 | old_req = link->u.mgd.req_smps; |
3159 | link->u.mgd.req_smps = smps_mode; |
3160 | |
3161 | /* The driver indicated that EML is enabled for the interface, which |
3162 | * implies that SMPS flows towards the AP should be stopped. |
3163 | */ |
3164 | if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE) |
3165 | return 0; |
3166 | |
3167 | if (old_req == smps_mode && |
3168 | smps_mode != IEEE80211_SMPS_AUTOMATIC) |
3169 | return 0; |
3170 | |
3171 | /* |
3172 | * If not associated, or current association is not an HT |
3173 | * association, there's no need to do anything, just store |
3174 | * the new value until we associate. |
3175 | */ |
3176 | if (!sdata->u.mgd.associated || |
3177 | link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
3178 | return 0; |
3179 | |
3180 | ap = sdata->vif.cfg.ap_addr; |
3181 | |
3182 | rcu_read_lock(); |
3183 | list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { |
3184 | if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || |
3185 | !test_sta_flag(sta, flag: WLAN_STA_AUTHORIZED)) |
3186 | continue; |
3187 | |
3188 | tdls_peer_found = true; |
3189 | break; |
3190 | } |
3191 | rcu_read_unlock(); |
3192 | |
3193 | if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { |
3194 | if (tdls_peer_found || !sdata->u.mgd.powersave) |
3195 | smps_mode = IEEE80211_SMPS_OFF; |
3196 | else |
3197 | smps_mode = IEEE80211_SMPS_DYNAMIC; |
3198 | } |
3199 | |
3200 | /* send SM PS frame to AP */ |
3201 | err = ieee80211_send_smps_action(sdata, smps: smps_mode, |
3202 | da: ap, bssid: ap, |
3203 | link_id: ieee80211_vif_is_mld(vif: &sdata->vif) ? |
3204 | link->link_id : -1); |
3205 | if (err) |
3206 | link->u.mgd.req_smps = old_req; |
3207 | else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) |
3208 | ieee80211_teardown_tdls_peers(sdata); |
3209 | |
3210 | return err; |
3211 | } |
3212 | |
3213 | static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, |
3214 | bool enabled, int timeout) |
3215 | { |
3216 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3217 | struct ieee80211_local *local = wdev_priv(wdev: dev->ieee80211_ptr); |
3218 | unsigned int link_id; |
3219 | |
3220 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
3221 | return -EOPNOTSUPP; |
3222 | |
3223 | if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) |
3224 | return -EOPNOTSUPP; |
3225 | |
3226 | if (enabled == sdata->u.mgd.powersave && |
3227 | timeout == local->dynamic_ps_forced_timeout) |
3228 | return 0; |
3229 | |
3230 | sdata->u.mgd.powersave = enabled; |
3231 | local->dynamic_ps_forced_timeout = timeout; |
3232 | |
3233 | /* no change, but if automatic follow powersave */ |
3234 | for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { |
3235 | struct ieee80211_link_data *link; |
3236 | |
3237 | link = sdata_dereference(sdata->link[link_id], sdata); |
3238 | |
3239 | if (!link) |
3240 | continue; |
3241 | __ieee80211_request_smps_mgd(sdata, link, |
3242 | smps_mode: link->u.mgd.req_smps); |
3243 | } |
3244 | |
3245 | if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) |
3246 | ieee80211_hw_config(local, changed: IEEE80211_CONF_CHANGE_PS); |
3247 | |
3248 | ieee80211_recalc_ps(local); |
3249 | ieee80211_recalc_ps_vif(sdata); |
3250 | ieee80211_check_fast_rx_iface(sdata); |
3251 | |
3252 | return 0; |
3253 | } |
3254 | |
3255 | static int (struct wiphy *wiphy, |
3256 | struct net_device *dev, |
3257 | s32 , u32 ) |
3258 | { |
3259 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3260 | struct ieee80211_vif *vif = &sdata->vif; |
3261 | struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; |
3262 | |
3263 | if (rssi_thold == bss_conf->cqm_rssi_thold && |
3264 | rssi_hyst == bss_conf->cqm_rssi_hyst) |
3265 | return 0; |
3266 | |
3267 | if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && |
3268 | !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) |
3269 | return -EOPNOTSUPP; |
3270 | |
3271 | bss_conf->cqm_rssi_thold = rssi_thold; |
3272 | bss_conf->cqm_rssi_hyst = rssi_hyst; |
3273 | bss_conf->cqm_rssi_low = 0; |
3274 | bss_conf->cqm_rssi_high = 0; |
3275 | sdata->deflink.u.mgd.last_cqm_event_signal = 0; |
3276 | |
3277 | /* tell the driver upon association, unless already associated */ |
3278 | if (sdata->u.mgd.associated && |
3279 | sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) |
3280 | ieee80211_link_info_change_notify(sdata, link: &sdata->deflink, |
3281 | changed: BSS_CHANGED_CQM); |
3282 | |
3283 | return 0; |
3284 | } |
3285 | |
3286 | static int (struct wiphy *wiphy, |
3287 | struct net_device *dev, |
3288 | s32 , s32 ) |
3289 | { |
3290 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3291 | struct ieee80211_vif *vif = &sdata->vif; |
3292 | struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; |
3293 | |
3294 | if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) |
3295 | return -EOPNOTSUPP; |
3296 | |
3297 | bss_conf->cqm_rssi_low = rssi_low; |
3298 | bss_conf->cqm_rssi_high = rssi_high; |
3299 | bss_conf->cqm_rssi_thold = 0; |
3300 | bss_conf->cqm_rssi_hyst = 0; |
3301 | sdata->deflink.u.mgd.last_cqm_event_signal = 0; |
3302 | |
3303 | /* tell the driver upon association, unless already associated */ |
3304 | if (sdata->u.mgd.associated && |
3305 | sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) |
3306 | ieee80211_link_info_change_notify(sdata, link: &sdata->deflink, |
3307 | changed: BSS_CHANGED_CQM); |
3308 | |
3309 | return 0; |
3310 | } |
3311 | |
3312 | static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, |
3313 | struct net_device *dev, |
3314 | unsigned int link_id, |
3315 | const u8 *addr, |
3316 | const struct cfg80211_bitrate_mask *mask) |
3317 | { |
3318 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3319 | struct ieee80211_local *local = wdev_priv(wdev: dev->ieee80211_ptr); |
3320 | int i, ret; |
3321 | |
3322 | if (!ieee80211_sdata_running(sdata)) |
3323 | return -ENETDOWN; |
3324 | |
3325 | /* |
3326 | * If active validate the setting and reject it if it doesn't leave |
3327 | * at least one basic rate usable, since we really have to be able |
3328 | * to send something, and if we're an AP we have to be able to do |
3329 | * so at a basic rate so that all clients can receive it. |
3330 | */ |
3331 | if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) && |
3332 | sdata->vif.bss_conf.chandef.chan) { |
3333 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
3334 | enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; |
3335 | |
3336 | if (!(mask->control[band].legacy & basic_rates)) |
3337 | return -EINVAL; |
3338 | } |
3339 | |
3340 | if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { |
3341 | ret = drv_set_bitrate_mask(local, sdata, mask); |
3342 | if (ret) |
3343 | return ret; |
3344 | } |
3345 | |
3346 | for (i = 0; i < NUM_NL80211_BANDS; i++) { |
3347 | struct ieee80211_supported_band *sband = wiphy->bands[i]; |
3348 | int j; |
3349 | |
3350 | sdata->rc_rateidx_mask[i] = mask->control[i].legacy; |
3351 | memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, |
3352 | sizeof(mask->control[i].ht_mcs)); |
3353 | memcpy(sdata->rc_rateidx_vht_mcs_mask[i], |
3354 | mask->control[i].vht_mcs, |
3355 | sizeof(mask->control[i].vht_mcs)); |
3356 | |
3357 | sdata->rc_has_mcs_mask[i] = false; |
3358 | sdata->rc_has_vht_mcs_mask[i] = false; |
3359 | if (!sband) |
3360 | continue; |
3361 | |
3362 | for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { |
3363 | if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) { |
3364 | sdata->rc_has_mcs_mask[i] = true; |
3365 | break; |
3366 | } |
3367 | } |
3368 | |
3369 | for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { |
3370 | if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) { |
3371 | sdata->rc_has_vht_mcs_mask[i] = true; |
3372 | break; |
3373 | } |
3374 | } |
3375 | } |
3376 | |
3377 | return 0; |
3378 | } |
3379 | |
3380 | static int ieee80211_start_radar_detection(struct wiphy *wiphy, |
3381 | struct net_device *dev, |
3382 | struct cfg80211_chan_def *chandef, |
3383 | u32 cac_time_ms) |
3384 | { |
3385 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3386 | struct ieee80211_local *local = sdata->local; |
3387 | int err; |
3388 | |
3389 | lockdep_assert_wiphy(local->hw.wiphy); |
3390 | |
3391 | if (!list_empty(head: &local->roc_list) || local->scanning) { |
3392 | err = -EBUSY; |
3393 | goto out_unlock; |
3394 | } |
3395 | |
3396 | /* whatever, but channel contexts should not complain about that one */ |
3397 | sdata->deflink.smps_mode = IEEE80211_SMPS_OFF; |
3398 | sdata->deflink.needed_rx_chains = local->rx_chains; |
3399 | |
3400 | err = ieee80211_link_use_channel(link: &sdata->deflink, chandef, |
3401 | mode: IEEE80211_CHANCTX_SHARED); |
3402 | if (err) |
3403 | goto out_unlock; |
3404 | |
3405 | wiphy_delayed_work_queue(wiphy, dwork: &sdata->deflink.dfs_cac_timer_work, |
3406 | delay: msecs_to_jiffies(m: cac_time_ms)); |
3407 | |
3408 | out_unlock: |
3409 | return err; |
3410 | } |
3411 | |
3412 | static void ieee80211_end_cac(struct wiphy *wiphy, |
3413 | struct net_device *dev) |
3414 | { |
3415 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3416 | struct ieee80211_local *local = sdata->local; |
3417 | |
3418 | lockdep_assert_wiphy(local->hw.wiphy); |
3419 | |
3420 | list_for_each_entry(sdata, &local->interfaces, list) { |
3421 | /* it might be waiting for the local->mtx, but then |
3422 | * by the time it gets it, sdata->wdev.cac_started |
3423 | * will no longer be true |
3424 | */ |
3425 | wiphy_delayed_work_cancel(wiphy, |
3426 | dwork: &sdata->deflink.dfs_cac_timer_work); |
3427 | |
3428 | if (sdata->wdev.cac_started) { |
3429 | ieee80211_link_release_channel(link: &sdata->deflink); |
3430 | sdata->wdev.cac_started = false; |
3431 | } |
3432 | } |
3433 | } |
3434 | |
3435 | static struct cfg80211_beacon_data * |
3436 | cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) |
3437 | { |
3438 | struct cfg80211_beacon_data *new_beacon; |
3439 | u8 *pos; |
3440 | int len; |
3441 | |
3442 | len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + |
3443 | beacon->proberesp_ies_len + beacon->assocresp_ies_len + |
3444 | beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; |
3445 | |
3446 | if (beacon->mbssid_ies) |
3447 | len += ieee80211_get_mbssid_beacon_len(elems: beacon->mbssid_ies, |
3448 | rnr_elems: beacon->rnr_ies, |
3449 | i: beacon->mbssid_ies->cnt); |
3450 | |
3451 | new_beacon = kzalloc(size: sizeof(*new_beacon) + len, GFP_KERNEL); |
3452 | if (!new_beacon) |
3453 | return NULL; |
3454 | |
3455 | if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { |
3456 | new_beacon->mbssid_ies = |
3457 | kzalloc(struct_size(new_beacon->mbssid_ies, |
3458 | elem, beacon->mbssid_ies->cnt), |
3459 | GFP_KERNEL); |
3460 | if (!new_beacon->mbssid_ies) { |
3461 | kfree(objp: new_beacon); |
3462 | return NULL; |
3463 | } |
3464 | |
3465 | if (beacon->rnr_ies && beacon->rnr_ies->cnt) { |
3466 | new_beacon->rnr_ies = |
3467 | kzalloc(struct_size(new_beacon->rnr_ies, |
3468 | elem, beacon->rnr_ies->cnt), |
3469 | GFP_KERNEL); |
3470 | if (!new_beacon->rnr_ies) { |
3471 | kfree(objp: new_beacon->mbssid_ies); |
3472 | kfree(objp: new_beacon); |
3473 | return NULL; |
3474 | } |
3475 | } |
3476 | } |
3477 | |
3478 | pos = (u8 *)(new_beacon + 1); |
3479 | if (beacon->head_len) { |
3480 | new_beacon->head_len = beacon->head_len; |
3481 | new_beacon->head = pos; |
3482 | memcpy(pos, beacon->head, beacon->head_len); |
3483 | pos += beacon->head_len; |
3484 | } |
3485 | if (beacon->tail_len) { |
3486 | new_beacon->tail_len = beacon->tail_len; |
3487 | new_beacon->tail = pos; |
3488 | memcpy(pos, beacon->tail, beacon->tail_len); |
3489 | pos += beacon->tail_len; |
3490 | } |
3491 | if (beacon->beacon_ies_len) { |
3492 | new_beacon->beacon_ies_len = beacon->beacon_ies_len; |
3493 | new_beacon->beacon_ies = pos; |
3494 | memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); |
3495 | pos += beacon->beacon_ies_len; |
3496 | } |
3497 | if (beacon->proberesp_ies_len) { |
3498 | new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; |
3499 | new_beacon->proberesp_ies = pos; |
3500 | memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); |
3501 | pos += beacon->proberesp_ies_len; |
3502 | } |
3503 | if (beacon->assocresp_ies_len) { |
3504 | new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; |
3505 | new_beacon->assocresp_ies = pos; |
3506 | memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); |
3507 | pos += beacon->assocresp_ies_len; |
3508 | } |
3509 | if (beacon->probe_resp_len) { |
3510 | new_beacon->probe_resp_len = beacon->probe_resp_len; |
3511 | new_beacon->probe_resp = pos; |
3512 | memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); |
3513 | pos += beacon->probe_resp_len; |
3514 | } |
3515 | if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) { |
3516 | pos += ieee80211_copy_mbssid_beacon(pos, |
3517 | dst: new_beacon->mbssid_ies, |
3518 | src: beacon->mbssid_ies); |
3519 | if (beacon->rnr_ies && beacon->rnr_ies->cnt) |
3520 | pos += ieee80211_copy_rnr_beacon(pos, |
3521 | dst: new_beacon->rnr_ies, |
3522 | src: beacon->rnr_ies); |
3523 | } |
3524 | |
3525 | /* might copy -1, meaning no changes requested */ |
3526 | new_beacon->ftm_responder = beacon->ftm_responder; |
3527 | if (beacon->lci) { |
3528 | new_beacon->lci_len = beacon->lci_len; |
3529 | new_beacon->lci = pos; |
3530 | memcpy(pos, beacon->lci, beacon->lci_len); |
3531 | pos += beacon->lci_len; |
3532 | } |
3533 | if (beacon->civicloc) { |
3534 | new_beacon->civicloc_len = beacon->civicloc_len; |
3535 | new_beacon->civicloc = pos; |
3536 | memcpy(pos, beacon->civicloc, beacon->civicloc_len); |
3537 | pos += beacon->civicloc_len; |
3538 | } |
3539 | |
3540 | return new_beacon; |
3541 | } |
3542 | |
3543 | void ieee80211_csa_finish(struct ieee80211_vif *vif) |
3544 | { |
3545 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif); |
3546 | struct ieee80211_local *local = sdata->local; |
3547 | |
3548 | rcu_read_lock(); |
3549 | |
3550 | if (vif->mbssid_tx_vif == vif) { |
3551 | /* Trigger ieee80211_csa_finish() on the non-transmitting |
3552 | * interfaces when channel switch is received on |
3553 | * transmitting interface |
3554 | */ |
3555 | struct ieee80211_sub_if_data *iter; |
3556 | |
3557 | list_for_each_entry_rcu(iter, &local->interfaces, list) { |
3558 | if (!ieee80211_sdata_running(sdata: iter)) |
3559 | continue; |
3560 | |
3561 | if (iter == sdata || iter->vif.mbssid_tx_vif != vif) |
3562 | continue; |
3563 | |
3564 | wiphy_work_queue(wiphy: iter->local->hw.wiphy, |
3565 | work: &iter->deflink.csa_finalize_work); |
3566 | } |
3567 | } |
3568 | wiphy_work_queue(wiphy: local->hw.wiphy, work: &sdata->deflink.csa_finalize_work); |
3569 | |
3570 | rcu_read_unlock(); |
3571 | } |
3572 | EXPORT_SYMBOL(ieee80211_csa_finish); |
3573 | |
3574 | void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx) |
3575 | { |
3576 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif); |
3577 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
3578 | struct ieee80211_local *local = sdata->local; |
3579 | |
3580 | sdata->deflink.csa_block_tx = block_tx; |
3581 | sdata_info(sdata, "channel switch failed, disconnecting\n" ); |
3582 | wiphy_work_queue(wiphy: local->hw.wiphy, work: &ifmgd->csa_connection_drop_work); |
3583 | } |
3584 | EXPORT_SYMBOL(ieee80211_channel_switch_disconnect); |
3585 | |
3586 | static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, |
3587 | u64 *changed) |
3588 | { |
3589 | int err; |
3590 | |
3591 | switch (sdata->vif.type) { |
3592 | case NL80211_IFTYPE_AP: |
3593 | if (!sdata->deflink.u.ap.next_beacon) |
3594 | return -EINVAL; |
3595 | |
3596 | err = ieee80211_assign_beacon(sdata, link: &sdata->deflink, |
3597 | params: sdata->deflink.u.ap.next_beacon, |
3598 | NULL, NULL, changed); |
3599 | ieee80211_free_next_beacon(link: &sdata->deflink); |
3600 | |
3601 | if (err < 0) |
3602 | return err; |
3603 | break; |
3604 | case NL80211_IFTYPE_ADHOC: |
3605 | err = ieee80211_ibss_finish_csa(sdata, changed); |
3606 | if (err < 0) |
3607 | return err; |
3608 | break; |
3609 | #ifdef CONFIG_MAC80211_MESH |
3610 | case NL80211_IFTYPE_MESH_POINT: |
3611 | err = ieee80211_mesh_finish_csa(sdata, changed); |
3612 | if (err < 0) |
3613 | return err; |
3614 | break; |
3615 | #endif |
3616 | default: |
3617 | WARN_ON(1); |
3618 | return -EINVAL; |
3619 | } |
3620 | |
3621 | return 0; |
3622 | } |
3623 | |
3624 | static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data) |
3625 | { |
3626 | struct ieee80211_sub_if_data *sdata = link_data->sdata; |
3627 | struct ieee80211_local *local = sdata->local; |
3628 | u64 changed = 0; |
3629 | int err; |
3630 | |
3631 | lockdep_assert_wiphy(local->hw.wiphy); |
3632 | |
3633 | /* |
3634 | * using reservation isn't immediate as it may be deferred until later |
3635 | * with multi-vif. once reservation is complete it will re-schedule the |
3636 | * work with no reserved_chanctx so verify chandef to check if it |
3637 | * completed successfully |
3638 | */ |
3639 | |
3640 | if (link_data->reserved_chanctx) { |
3641 | /* |
3642 | * with multi-vif csa driver may call ieee80211_csa_finish() |
3643 | * many times while waiting for other interfaces to use their |
3644 | * reservations |
3645 | */ |
3646 | if (link_data->reserved_ready) |
3647 | return 0; |
3648 | |
3649 | return ieee80211_link_use_reserved_context(link: &sdata->deflink); |
3650 | } |
3651 | |
3652 | if (!cfg80211_chandef_identical(chandef1: &link_data->conf->chandef, |
3653 | chandef2: &link_data->csa_chandef)) |
3654 | return -EINVAL; |
3655 | |
3656 | sdata->vif.bss_conf.csa_active = false; |
3657 | |
3658 | err = ieee80211_set_after_csa_beacon(sdata, changed: &changed); |
3659 | if (err) |
3660 | return err; |
3661 | |
3662 | if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) { |
3663 | sdata->vif.bss_conf.eht_puncturing = |
3664 | sdata->vif.bss_conf.csa_punct_bitmap; |
3665 | changed |= BSS_CHANGED_EHT_PUNCTURING; |
3666 | } |
3667 | |
3668 | ieee80211_link_info_change_notify(sdata, link: link_data, changed); |
3669 | |
3670 | if (link_data->csa_block_tx) { |
3671 | ieee80211_wake_vif_queues(local, sdata, |
3672 | reason: IEEE80211_QUEUE_STOP_REASON_CSA); |
3673 | link_data->csa_block_tx = false; |
3674 | } |
3675 | |
3676 | err = drv_post_channel_switch(link: link_data); |
3677 | if (err) |
3678 | return err; |
3679 | |
3680 | cfg80211_ch_switch_notify(dev: sdata->dev, chandef: &link_data->csa_chandef, |
3681 | link_id: link_data->link_id, |
3682 | punct_bitmap: link_data->conf->eht_puncturing); |
3683 | |
3684 | return 0; |
3685 | } |
3686 | |
3687 | static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data) |
3688 | { |
3689 | struct ieee80211_sub_if_data *sdata = link_data->sdata; |
3690 | |
3691 | if (__ieee80211_csa_finalize(link_data)) { |
3692 | sdata_info(sdata, "failed to finalize CSA, disconnecting\n" ); |
3693 | cfg80211_stop_iface(wiphy: sdata->local->hw.wiphy, wdev: &sdata->wdev, |
3694 | GFP_KERNEL); |
3695 | } |
3696 | } |
3697 | |
3698 | void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work) |
3699 | { |
3700 | struct ieee80211_link_data *link = |
3701 | container_of(work, struct ieee80211_link_data, csa_finalize_work); |
3702 | struct ieee80211_sub_if_data *sdata = link->sdata; |
3703 | struct ieee80211_local *local = sdata->local; |
3704 | |
3705 | lockdep_assert_wiphy(local->hw.wiphy); |
3706 | |
3707 | /* AP might have been stopped while waiting for the lock. */ |
3708 | if (!link->conf->csa_active) |
3709 | return; |
3710 | |
3711 | if (!ieee80211_sdata_running(sdata)) |
3712 | return; |
3713 | |
3714 | ieee80211_csa_finalize(link_data: link); |
3715 | } |
3716 | |
3717 | static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, |
3718 | struct cfg80211_csa_settings *params, |
3719 | u64 *changed) |
3720 | { |
3721 | struct ieee80211_csa_settings csa = {}; |
3722 | int err; |
3723 | |
3724 | switch (sdata->vif.type) { |
3725 | case NL80211_IFTYPE_AP: |
3726 | sdata->deflink.u.ap.next_beacon = |
3727 | cfg80211_beacon_dup(beacon: ¶ms->beacon_after); |
3728 | if (!sdata->deflink.u.ap.next_beacon) |
3729 | return -ENOMEM; |
3730 | |
3731 | /* |
3732 | * With a count of 0, we don't have to wait for any |
3733 | * TBTT before switching, so complete the CSA |
3734 | * immediately. In theory, with a count == 1 we |
3735 | * should delay the switch until just before the next |
3736 | * TBTT, but that would complicate things so we switch |
3737 | * immediately too. If we would delay the switch |
3738 | * until the next TBTT, we would have to set the probe |
3739 | * response here. |
3740 | * |
3741 | * TODO: A channel switch with count <= 1 without |
3742 | * sending a CSA action frame is kind of useless, |
3743 | * because the clients won't know we're changing |
3744 | * channels. The action frame must be implemented |
3745 | * either here or in the userspace. |
3746 | */ |
3747 | if (params->count <= 1) |
3748 | break; |
3749 | |
3750 | if ((params->n_counter_offsets_beacon > |
3751 | IEEE80211_MAX_CNTDWN_COUNTERS_NUM) || |
3752 | (params->n_counter_offsets_presp > |
3753 | IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) { |
3754 | ieee80211_free_next_beacon(link: &sdata->deflink); |
3755 | return -EINVAL; |
3756 | } |
3757 | |
3758 | csa.counter_offsets_beacon = params->counter_offsets_beacon; |
3759 | csa.counter_offsets_presp = params->counter_offsets_presp; |
3760 | csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; |
3761 | csa.n_counter_offsets_presp = params->n_counter_offsets_presp; |
3762 | csa.count = params->count; |
3763 | |
3764 | err = ieee80211_assign_beacon(sdata, link: &sdata->deflink, |
3765 | params: ¶ms->beacon_csa, csa: &csa, |
3766 | NULL, changed); |
3767 | if (err < 0) { |
3768 | ieee80211_free_next_beacon(link: &sdata->deflink); |
3769 | return err; |
3770 | } |
3771 | |
3772 | break; |
3773 | case NL80211_IFTYPE_ADHOC: |
3774 | if (!sdata->vif.cfg.ibss_joined) |
3775 | return -EINVAL; |
3776 | |
3777 | if (params->chandef.width != sdata->u.ibss.chandef.width) |
3778 | return -EINVAL; |
3779 | |
3780 | switch (params->chandef.width) { |
3781 | case NL80211_CHAN_WIDTH_40: |
3782 | if (cfg80211_get_chandef_type(chandef: ¶ms->chandef) != |
3783 | cfg80211_get_chandef_type(chandef: &sdata->u.ibss.chandef)) |
3784 | return -EINVAL; |
3785 | break; |
3786 | case NL80211_CHAN_WIDTH_5: |
3787 | case NL80211_CHAN_WIDTH_10: |
3788 | case NL80211_CHAN_WIDTH_20_NOHT: |
3789 | case NL80211_CHAN_WIDTH_20: |
3790 | break; |
3791 | default: |
3792 | return -EINVAL; |
3793 | } |
3794 | |
3795 | /* changes into another band are not supported */ |
3796 | if (sdata->u.ibss.chandef.chan->band != |
3797 | params->chandef.chan->band) |
3798 | return -EINVAL; |
3799 | |
3800 | /* see comments in the NL80211_IFTYPE_AP block */ |
3801 | if (params->count > 1) { |
3802 | err = ieee80211_ibss_csa_beacon(sdata, csa_settings: params, changed); |
3803 | if (err < 0) |
3804 | return err; |
3805 | } |
3806 | |
3807 | ieee80211_send_action_csa(sdata, csa_settings: params); |
3808 | |
3809 | break; |
3810 | #ifdef CONFIG_MAC80211_MESH |
3811 | case NL80211_IFTYPE_MESH_POINT: { |
3812 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
3813 | |
3814 | /* changes into another band are not supported */ |
3815 | if (sdata->vif.bss_conf.chandef.chan->band != |
3816 | params->chandef.chan->band) |
3817 | return -EINVAL; |
3818 | |
3819 | if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { |
3820 | ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; |
3821 | if (!ifmsh->pre_value) |
3822 | ifmsh->pre_value = 1; |
3823 | else |
3824 | ifmsh->pre_value++; |
3825 | } |
3826 | |
3827 | /* see comments in the NL80211_IFTYPE_AP block */ |
3828 | if (params->count > 1) { |
3829 | err = ieee80211_mesh_csa_beacon(sdata, csa_settings: params, changed); |
3830 | if (err < 0) { |
3831 | ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; |
3832 | return err; |
3833 | } |
3834 | } |
3835 | |
3836 | if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) |
3837 | ieee80211_send_action_csa(sdata, csa_settings: params); |
3838 | |
3839 | break; |
3840 | } |
3841 | #endif |
3842 | default: |
3843 | return -EOPNOTSUPP; |
3844 | } |
3845 | |
3846 | return 0; |
3847 | } |
3848 | |
3849 | static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata) |
3850 | { |
3851 | sdata->vif.bss_conf.color_change_active = false; |
3852 | |
3853 | ieee80211_free_next_beacon(link: &sdata->deflink); |
3854 | |
3855 | cfg80211_color_change_aborted_notify(dev: sdata->dev); |
3856 | } |
3857 | |
3858 | static int |
3859 | __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
3860 | struct cfg80211_csa_settings *params) |
3861 | { |
3862 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3863 | struct ieee80211_local *local = sdata->local; |
3864 | struct ieee80211_channel_switch ch_switch; |
3865 | struct ieee80211_chanctx_conf *conf; |
3866 | struct ieee80211_chanctx *chanctx; |
3867 | u64 changed = 0; |
3868 | int err; |
3869 | |
3870 | lockdep_assert_wiphy(local->hw.wiphy); |
3871 | |
3872 | if (!list_empty(head: &local->roc_list) || local->scanning) |
3873 | return -EBUSY; |
3874 | |
3875 | if (sdata->wdev.cac_started) |
3876 | return -EBUSY; |
3877 | |
3878 | if (cfg80211_chandef_identical(chandef1: ¶ms->chandef, |
3879 | chandef2: &sdata->vif.bss_conf.chandef)) |
3880 | return -EINVAL; |
3881 | |
3882 | /* don't allow another channel switch if one is already active. */ |
3883 | if (sdata->vif.bss_conf.csa_active) |
3884 | return -EBUSY; |
3885 | |
3886 | conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf, |
3887 | lockdep_is_held(&local->hw.wiphy->mtx)); |
3888 | if (!conf) { |
3889 | err = -EBUSY; |
3890 | goto out; |
3891 | } |
3892 | |
3893 | if (params->chandef.chan->freq_offset) { |
3894 | /* this may work, but is untested */ |
3895 | err = -EOPNOTSUPP; |
3896 | goto out; |
3897 | } |
3898 | |
3899 | chanctx = container_of(conf, struct ieee80211_chanctx, conf); |
3900 | |
3901 | ch_switch.timestamp = 0; |
3902 | ch_switch.device_timestamp = 0; |
3903 | ch_switch.block_tx = params->block_tx; |
3904 | ch_switch.chandef = params->chandef; |
3905 | ch_switch.count = params->count; |
3906 | |
3907 | err = drv_pre_channel_switch(sdata, ch_switch: &ch_switch); |
3908 | if (err) |
3909 | goto out; |
3910 | |
3911 | err = ieee80211_link_reserve_chanctx(link: &sdata->deflink, chandef: ¶ms->chandef, |
3912 | mode: chanctx->mode, |
3913 | radar_required: params->radar_required); |
3914 | if (err) |
3915 | goto out; |
3916 | |
3917 | /* if reservation is invalid then this will fail */ |
3918 | err = ieee80211_check_combinations(sdata, NULL, chanmode: chanctx->mode, radar_detect: 0); |
3919 | if (err) { |
3920 | ieee80211_link_unreserve_chanctx(link: &sdata->deflink); |
3921 | goto out; |
3922 | } |
3923 | |
3924 | /* if there is a color change in progress, abort it */ |
3925 | if (sdata->vif.bss_conf.color_change_active) |
3926 | ieee80211_color_change_abort(sdata); |
3927 | |
3928 | err = ieee80211_set_csa_beacon(sdata, params, changed: &changed); |
3929 | if (err) { |
3930 | ieee80211_link_unreserve_chanctx(link: &sdata->deflink); |
3931 | goto out; |
3932 | } |
3933 | |
3934 | if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support) |
3935 | goto out; |
3936 | |
3937 | sdata->deflink.csa_chandef = params->chandef; |
3938 | sdata->deflink.csa_block_tx = params->block_tx; |
3939 | sdata->vif.bss_conf.csa_active = true; |
3940 | sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap; |
3941 | |
3942 | if (sdata->deflink.csa_block_tx) |
3943 | ieee80211_stop_vif_queues(local, sdata, |
3944 | reason: IEEE80211_QUEUE_STOP_REASON_CSA); |
3945 | |
3946 | cfg80211_ch_switch_started_notify(dev: sdata->dev, |
3947 | chandef: &sdata->deflink.csa_chandef, link_id: 0, |
3948 | count: params->count, quiet: params->block_tx, |
3949 | punct_bitmap: sdata->vif.bss_conf.csa_punct_bitmap); |
3950 | |
3951 | if (changed) { |
3952 | ieee80211_link_info_change_notify(sdata, link: &sdata->deflink, |
3953 | changed); |
3954 | drv_channel_switch_beacon(sdata, chandef: ¶ms->chandef); |
3955 | } else { |
3956 | /* if the beacon didn't change, we can finalize immediately */ |
3957 | ieee80211_csa_finalize(link_data: &sdata->deflink); |
3958 | } |
3959 | |
3960 | out: |
3961 | return err; |
3962 | } |
3963 | |
3964 | int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
3965 | struct cfg80211_csa_settings *params) |
3966 | { |
3967 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3968 | struct ieee80211_local *local = sdata->local; |
3969 | |
3970 | lockdep_assert_wiphy(local->hw.wiphy); |
3971 | |
3972 | return __ieee80211_channel_switch(wiphy, dev, params); |
3973 | } |
3974 | |
3975 | u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) |
3976 | { |
3977 | lockdep_assert_wiphy(local->hw.wiphy); |
3978 | |
3979 | local->roc_cookie_counter++; |
3980 | |
3981 | /* wow, you wrapped 64 bits ... more likely a bug */ |
3982 | if (WARN_ON(local->roc_cookie_counter == 0)) |
3983 | local->roc_cookie_counter++; |
3984 | |
3985 | return local->roc_cookie_counter; |
3986 | } |
3987 | |
3988 | int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, |
3989 | u64 *cookie, gfp_t gfp) |
3990 | { |
3991 | unsigned long spin_flags; |
3992 | struct sk_buff *ack_skb; |
3993 | int id; |
3994 | |
3995 | ack_skb = skb_copy(skb, priority: gfp); |
3996 | if (!ack_skb) |
3997 | return -ENOMEM; |
3998 | |
3999 | spin_lock_irqsave(&local->ack_status_lock, spin_flags); |
4000 | id = idr_alloc(&local->ack_status_frames, ptr: ack_skb, |
4001 | start: 1, end: 0x2000, GFP_ATOMIC); |
4002 | spin_unlock_irqrestore(lock: &local->ack_status_lock, flags: spin_flags); |
4003 | |
4004 | if (id < 0) { |
4005 | kfree_skb(skb: ack_skb); |
4006 | return -ENOMEM; |
4007 | } |
4008 | |
4009 | IEEE80211_SKB_CB(skb)->status_data_idr = 1; |
4010 | IEEE80211_SKB_CB(skb)->status_data = id; |
4011 | |
4012 | *cookie = ieee80211_mgmt_tx_cookie(local); |
4013 | IEEE80211_SKB_CB(skb: ack_skb)->ack.cookie = *cookie; |
4014 | |
4015 | return 0; |
4016 | } |
4017 | |
4018 | static void |
4019 | ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, |
4020 | struct wireless_dev *wdev, |
4021 | struct mgmt_frame_regs *upd) |
4022 | { |
4023 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4024 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
4025 | u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); |
4026 | u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); |
4027 | bool global_change, intf_change; |
4028 | |
4029 | global_change = |
4030 | (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || |
4031 | (local->rx_mcast_action_reg != |
4032 | !!(upd->global_mcast_stypes & action_mask)); |
4033 | local->probe_req_reg = upd->global_stypes & preq_mask; |
4034 | local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; |
4035 | |
4036 | intf_change = (sdata->vif.probe_req_reg != |
4037 | !!(upd->interface_stypes & preq_mask)) || |
4038 | (sdata->vif.rx_mcast_action_reg != |
4039 | !!(upd->interface_mcast_stypes & action_mask)); |
4040 | sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; |
4041 | sdata->vif.rx_mcast_action_reg = |
4042 | upd->interface_mcast_stypes & action_mask; |
4043 | |
4044 | if (!local->open_count) |
4045 | return; |
4046 | |
4047 | if (intf_change && ieee80211_sdata_running(sdata)) |
4048 | drv_config_iface_filter(local, sdata, |
4049 | filter_flags: sdata->vif.probe_req_reg ? |
4050 | FIF_PROBE_REQ : 0, |
4051 | changed_flags: FIF_PROBE_REQ); |
4052 | |
4053 | if (global_change) |
4054 | ieee80211_configure_filter(local); |
4055 | } |
4056 | |
4057 | static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) |
4058 | { |
4059 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4060 | int ret; |
4061 | |
4062 | if (local->started) |
4063 | return -EOPNOTSUPP; |
4064 | |
4065 | ret = drv_set_antenna(local, tx_ant, rx_ant); |
4066 | if (ret) |
4067 | return ret; |
4068 | |
4069 | local->rx_chains = hweight8(rx_ant); |
4070 | return 0; |
4071 | } |
4072 | |
4073 | static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) |
4074 | { |
4075 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4076 | |
4077 | return drv_get_antenna(local, tx_ant, rx_ant); |
4078 | } |
4079 | |
4080 | static int ieee80211_set_rekey_data(struct wiphy *wiphy, |
4081 | struct net_device *dev, |
4082 | struct cfg80211_gtk_rekey_data *data) |
4083 | { |
4084 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4085 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4086 | |
4087 | if (!local->ops->set_rekey_data) |
4088 | return -EOPNOTSUPP; |
4089 | |
4090 | drv_set_rekey_data(local, sdata, data); |
4091 | |
4092 | return 0; |
4093 | } |
4094 | |
4095 | static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, |
4096 | const u8 *peer, u64 *cookie) |
4097 | { |
4098 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4099 | struct ieee80211_local *local = sdata->local; |
4100 | struct ieee80211_qos_hdr *nullfunc; |
4101 | struct sk_buff *skb; |
4102 | int size = sizeof(*nullfunc); |
4103 | __le16 fc; |
4104 | bool qos; |
4105 | struct ieee80211_tx_info *info; |
4106 | struct sta_info *sta; |
4107 | struct ieee80211_chanctx_conf *chanctx_conf; |
4108 | enum nl80211_band band; |
4109 | int ret; |
4110 | |
4111 | /* the lock is needed to assign the cookie later */ |
4112 | lockdep_assert_wiphy(local->hw.wiphy); |
4113 | |
4114 | rcu_read_lock(); |
4115 | sta = sta_info_get_bss(sdata, addr: peer); |
4116 | if (!sta) { |
4117 | ret = -ENOLINK; |
4118 | goto unlock; |
4119 | } |
4120 | |
4121 | qos = sta->sta.wme; |
4122 | |
4123 | chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); |
4124 | if (WARN_ON(!chanctx_conf)) { |
4125 | ret = -EINVAL; |
4126 | goto unlock; |
4127 | } |
4128 | band = chanctx_conf->def.chan->band; |
4129 | |
4130 | if (qos) { |
4131 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
4132 | IEEE80211_STYPE_QOS_NULLFUNC | |
4133 | IEEE80211_FCTL_FROMDS); |
4134 | } else { |
4135 | size -= 2; |
4136 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
4137 | IEEE80211_STYPE_NULLFUNC | |
4138 | IEEE80211_FCTL_FROMDS); |
4139 | } |
4140 | |
4141 | skb = dev_alloc_skb(length: local->hw.extra_tx_headroom + size); |
4142 | if (!skb) { |
4143 | ret = -ENOMEM; |
4144 | goto unlock; |
4145 | } |
4146 | |
4147 | skb->dev = dev; |
4148 | |
4149 | skb_reserve(skb, len: local->hw.extra_tx_headroom); |
4150 | |
4151 | nullfunc = skb_put(skb, len: size); |
4152 | nullfunc->frame_control = fc; |
4153 | nullfunc->duration_id = 0; |
4154 | memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); |
4155 | memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); |
4156 | memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); |
4157 | nullfunc->seq_ctrl = 0; |
4158 | |
4159 | info = IEEE80211_SKB_CB(skb); |
4160 | |
4161 | info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | |
4162 | IEEE80211_TX_INTFL_NL80211_FRAME_TX; |
4163 | info->band = band; |
4164 | |
4165 | skb_set_queue_mapping(skb, queue_mapping: IEEE80211_AC_VO); |
4166 | skb->priority = 7; |
4167 | if (qos) |
4168 | nullfunc->qos_ctrl = cpu_to_le16(7); |
4169 | |
4170 | ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); |
4171 | if (ret) { |
4172 | kfree_skb(skb); |
4173 | goto unlock; |
4174 | } |
4175 | |
4176 | local_bh_disable(); |
4177 | ieee80211_xmit(sdata, sta, skb); |
4178 | local_bh_enable(); |
4179 | |
4180 | ret = 0; |
4181 | unlock: |
4182 | rcu_read_unlock(); |
4183 | |
4184 | return ret; |
4185 | } |
4186 | |
4187 | static int ieee80211_cfg_get_channel(struct wiphy *wiphy, |
4188 | struct wireless_dev *wdev, |
4189 | unsigned int link_id, |
4190 | struct cfg80211_chan_def *chandef) |
4191 | { |
4192 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
4193 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4194 | struct ieee80211_chanctx_conf *chanctx_conf; |
4195 | struct ieee80211_link_data *link; |
4196 | int ret = -ENODATA; |
4197 | |
4198 | rcu_read_lock(); |
4199 | link = rcu_dereference(sdata->link[link_id]); |
4200 | if (!link) { |
4201 | ret = -ENOLINK; |
4202 | goto out; |
4203 | } |
4204 | |
4205 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); |
4206 | if (chanctx_conf) { |
4207 | *chandef = link->conf->chandef; |
4208 | ret = 0; |
4209 | } else if (local->open_count > 0 && |
4210 | local->open_count == local->monitors && |
4211 | sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
4212 | if (local->use_chanctx) |
4213 | *chandef = local->monitor_chandef; |
4214 | else |
4215 | *chandef = local->_oper_chandef; |
4216 | ret = 0; |
4217 | } |
4218 | out: |
4219 | rcu_read_unlock(); |
4220 | |
4221 | return ret; |
4222 | } |
4223 | |
4224 | #ifdef CONFIG_PM |
4225 | static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) |
4226 | { |
4227 | drv_set_wakeup(local: wiphy_priv(wiphy), enabled); |
4228 | } |
4229 | #endif |
4230 | |
4231 | static int ieee80211_set_qos_map(struct wiphy *wiphy, |
4232 | struct net_device *dev, |
4233 | struct cfg80211_qos_map *qos_map) |
4234 | { |
4235 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4236 | struct mac80211_qos_map *new_qos_map, *old_qos_map; |
4237 | |
4238 | if (qos_map) { |
4239 | new_qos_map = kzalloc(size: sizeof(*new_qos_map), GFP_KERNEL); |
4240 | if (!new_qos_map) |
4241 | return -ENOMEM; |
4242 | memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); |
4243 | } else { |
4244 | /* A NULL qos_map was passed to disable QoS mapping */ |
4245 | new_qos_map = NULL; |
4246 | } |
4247 | |
4248 | old_qos_map = sdata_dereference(sdata->qos_map, sdata); |
4249 | rcu_assign_pointer(sdata->qos_map, new_qos_map); |
4250 | if (old_qos_map) |
4251 | kfree_rcu(old_qos_map, rcu_head); |
4252 | |
4253 | return 0; |
4254 | } |
4255 | |
4256 | static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, |
4257 | struct net_device *dev, |
4258 | unsigned int link_id, |
4259 | struct cfg80211_chan_def *chandef) |
4260 | { |
4261 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4262 | struct ieee80211_link_data *link; |
4263 | int ret; |
4264 | u64 changed = 0; |
4265 | |
4266 | link = sdata_dereference(sdata->link[link_id], sdata); |
4267 | |
4268 | ret = ieee80211_link_change_bandwidth(link, chandef, changed: &changed); |
4269 | if (ret == 0) |
4270 | ieee80211_link_info_change_notify(sdata, link, changed); |
4271 | |
4272 | return ret; |
4273 | } |
4274 | |
4275 | static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, |
4276 | u8 tsid, const u8 *peer, u8 up, |
4277 | u16 admitted_time) |
4278 | { |
4279 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4280 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
4281 | int ac = ieee802_1d_to_ac[up]; |
4282 | |
4283 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
4284 | return -EOPNOTSUPP; |
4285 | |
4286 | if (!(sdata->wmm_acm & BIT(up))) |
4287 | return -EINVAL; |
4288 | |
4289 | if (ifmgd->tx_tspec[ac].admitted_time) |
4290 | return -EBUSY; |
4291 | |
4292 | if (admitted_time) { |
4293 | ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; |
4294 | ifmgd->tx_tspec[ac].tsid = tsid; |
4295 | ifmgd->tx_tspec[ac].up = up; |
4296 | } |
4297 | |
4298 | return 0; |
4299 | } |
4300 | |
4301 | static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, |
4302 | u8 tsid, const u8 *peer) |
4303 | { |
4304 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4305 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
4306 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4307 | int ac; |
4308 | |
4309 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
4310 | struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; |
4311 | |
4312 | /* skip unused entries */ |
4313 | if (!tx_tspec->admitted_time) |
4314 | continue; |
4315 | |
4316 | if (tx_tspec->tsid != tsid) |
4317 | continue; |
4318 | |
4319 | /* due to this new packets will be reassigned to non-ACM ACs */ |
4320 | tx_tspec->up = -1; |
4321 | |
4322 | /* Make sure that all packets have been sent to avoid to |
4323 | * restore the QoS params on packets that are still on the |
4324 | * queues. |
4325 | */ |
4326 | synchronize_net(); |
4327 | ieee80211_flush_queues(local, sdata, drop: false); |
4328 | |
4329 | /* restore the normal QoS parameters |
4330 | * (unconditionally to avoid races) |
4331 | */ |
4332 | tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; |
4333 | tx_tspec->downgraded = false; |
4334 | ieee80211_sta_handle_tspec_ac_params(sdata); |
4335 | |
4336 | /* finally clear all the data */ |
4337 | memset(tx_tspec, 0, sizeof(*tx_tspec)); |
4338 | |
4339 | return 0; |
4340 | } |
4341 | |
4342 | return -ENOENT; |
4343 | } |
4344 | |
4345 | void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, |
4346 | u8 inst_id, |
4347 | enum nl80211_nan_func_term_reason reason, |
4348 | gfp_t gfp) |
4349 | { |
4350 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif); |
4351 | struct cfg80211_nan_func *func; |
4352 | u64 cookie; |
4353 | |
4354 | if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) |
4355 | return; |
4356 | |
4357 | spin_lock_bh(lock: &sdata->u.nan.func_lock); |
4358 | |
4359 | func = idr_find(&sdata->u.nan.function_inst_ids, id: inst_id); |
4360 | if (WARN_ON(!func)) { |
4361 | spin_unlock_bh(lock: &sdata->u.nan.func_lock); |
4362 | return; |
4363 | } |
4364 | |
4365 | cookie = func->cookie; |
4366 | idr_remove(&sdata->u.nan.function_inst_ids, id: inst_id); |
4367 | |
4368 | spin_unlock_bh(lock: &sdata->u.nan.func_lock); |
4369 | |
4370 | cfg80211_free_nan_func(f: func); |
4371 | |
4372 | cfg80211_nan_func_terminated(wdev: ieee80211_vif_to_wdev(vif), inst_id, |
4373 | reason, cookie, gfp); |
4374 | } |
4375 | EXPORT_SYMBOL(ieee80211_nan_func_terminated); |
4376 | |
4377 | void ieee80211_nan_func_match(struct ieee80211_vif *vif, |
4378 | struct cfg80211_nan_match_params *match, |
4379 | gfp_t gfp) |
4380 | { |
4381 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif); |
4382 | struct cfg80211_nan_func *func; |
4383 | |
4384 | if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) |
4385 | return; |
4386 | |
4387 | spin_lock_bh(lock: &sdata->u.nan.func_lock); |
4388 | |
4389 | func = idr_find(&sdata->u.nan.function_inst_ids, id: match->inst_id); |
4390 | if (WARN_ON(!func)) { |
4391 | spin_unlock_bh(lock: &sdata->u.nan.func_lock); |
4392 | return; |
4393 | } |
4394 | match->cookie = func->cookie; |
4395 | |
4396 | spin_unlock_bh(lock: &sdata->u.nan.func_lock); |
4397 | |
4398 | cfg80211_nan_match(wdev: ieee80211_vif_to_wdev(vif), match, gfp); |
4399 | } |
4400 | EXPORT_SYMBOL(ieee80211_nan_func_match); |
4401 | |
4402 | static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, |
4403 | struct net_device *dev, |
4404 | const bool enabled) |
4405 | { |
4406 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4407 | |
4408 | sdata->u.ap.multicast_to_unicast = enabled; |
4409 | |
4410 | return 0; |
4411 | } |
4412 | |
4413 | void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, |
4414 | struct txq_info *txqi) |
4415 | { |
4416 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { |
4417 | txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); |
4418 | txqstats->backlog_bytes = txqi->tin.backlog_bytes; |
4419 | } |
4420 | |
4421 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { |
4422 | txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); |
4423 | txqstats->backlog_packets = txqi->tin.backlog_packets; |
4424 | } |
4425 | |
4426 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { |
4427 | txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); |
4428 | txqstats->flows = txqi->tin.flows; |
4429 | } |
4430 | |
4431 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { |
4432 | txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); |
4433 | txqstats->drops = txqi->cstats.drop_count; |
4434 | } |
4435 | |
4436 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { |
4437 | txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); |
4438 | txqstats->ecn_marks = txqi->cstats.ecn_mark; |
4439 | } |
4440 | |
4441 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { |
4442 | txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); |
4443 | txqstats->overlimit = txqi->tin.overlimit; |
4444 | } |
4445 | |
4446 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { |
4447 | txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); |
4448 | txqstats->collisions = txqi->tin.collisions; |
4449 | } |
4450 | |
4451 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { |
4452 | txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); |
4453 | txqstats->tx_bytes = txqi->tin.tx_bytes; |
4454 | } |
4455 | |
4456 | if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { |
4457 | txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); |
4458 | txqstats->tx_packets = txqi->tin.tx_packets; |
4459 | } |
4460 | } |
4461 | |
4462 | static int ieee80211_get_txq_stats(struct wiphy *wiphy, |
4463 | struct wireless_dev *wdev, |
4464 | struct cfg80211_txq_stats *txqstats) |
4465 | { |
4466 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4467 | struct ieee80211_sub_if_data *sdata; |
4468 | int ret = 0; |
4469 | |
4470 | spin_lock_bh(lock: &local->fq.lock); |
4471 | rcu_read_lock(); |
4472 | |
4473 | if (wdev) { |
4474 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
4475 | if (!sdata->vif.txq) { |
4476 | ret = 1; |
4477 | goto out; |
4478 | } |
4479 | ieee80211_fill_txq_stats(txqstats, txqi: to_txq_info(txq: sdata->vif.txq)); |
4480 | } else { |
4481 | /* phy stats */ |
4482 | txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | |
4483 | BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | |
4484 | BIT(NL80211_TXQ_STATS_OVERLIMIT) | |
4485 | BIT(NL80211_TXQ_STATS_OVERMEMORY) | |
4486 | BIT(NL80211_TXQ_STATS_COLLISIONS) | |
4487 | BIT(NL80211_TXQ_STATS_MAX_FLOWS); |
4488 | txqstats->backlog_packets = local->fq.backlog; |
4489 | txqstats->backlog_bytes = local->fq.memory_usage; |
4490 | txqstats->overlimit = local->fq.overlimit; |
4491 | txqstats->overmemory = local->fq.overmemory; |
4492 | txqstats->collisions = local->fq.collisions; |
4493 | txqstats->max_flows = local->fq.flows_cnt; |
4494 | } |
4495 | |
4496 | out: |
4497 | rcu_read_unlock(); |
4498 | spin_unlock_bh(lock: &local->fq.lock); |
4499 | |
4500 | return ret; |
4501 | } |
4502 | |
4503 | static int |
4504 | ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, |
4505 | struct net_device *dev, |
4506 | struct cfg80211_ftm_responder_stats *ftm_stats) |
4507 | { |
4508 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4509 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4510 | |
4511 | return drv_get_ftm_responder_stats(local, sdata, ftm_stats); |
4512 | } |
4513 | |
4514 | static int |
4515 | ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, |
4516 | struct cfg80211_pmsr_request *request) |
4517 | { |
4518 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4519 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev: dev); |
4520 | |
4521 | return drv_start_pmsr(local, sdata, request); |
4522 | } |
4523 | |
4524 | static void |
4525 | ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, |
4526 | struct cfg80211_pmsr_request *request) |
4527 | { |
4528 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4529 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev: dev); |
4530 | |
4531 | return drv_abort_pmsr(local, sdata, request); |
4532 | } |
4533 | |
4534 | static int ieee80211_set_tid_config(struct wiphy *wiphy, |
4535 | struct net_device *dev, |
4536 | struct cfg80211_tid_config *tid_conf) |
4537 | { |
4538 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4539 | struct sta_info *sta; |
4540 | |
4541 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
4542 | |
4543 | if (!sdata->local->ops->set_tid_config) |
4544 | return -EOPNOTSUPP; |
4545 | |
4546 | if (!tid_conf->peer) |
4547 | return drv_set_tid_config(local: sdata->local, sdata, NULL, tid_conf); |
4548 | |
4549 | sta = sta_info_get_bss(sdata, addr: tid_conf->peer); |
4550 | if (!sta) |
4551 | return -ENOENT; |
4552 | |
4553 | return drv_set_tid_config(local: sdata->local, sdata, sta: &sta->sta, tid_conf); |
4554 | } |
4555 | |
4556 | static int ieee80211_reset_tid_config(struct wiphy *wiphy, |
4557 | struct net_device *dev, |
4558 | const u8 *peer, u8 tids) |
4559 | { |
4560 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4561 | struct sta_info *sta; |
4562 | |
4563 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
4564 | |
4565 | if (!sdata->local->ops->reset_tid_config) |
4566 | return -EOPNOTSUPP; |
4567 | |
4568 | if (!peer) |
4569 | return drv_reset_tid_config(local: sdata->local, sdata, NULL, tids); |
4570 | |
4571 | sta = sta_info_get_bss(sdata, addr: peer); |
4572 | if (!sta) |
4573 | return -ENOENT; |
4574 | |
4575 | return drv_reset_tid_config(local: sdata->local, sdata, sta: &sta->sta, tids); |
4576 | } |
4577 | |
4578 | static int ieee80211_set_sar_specs(struct wiphy *wiphy, |
4579 | struct cfg80211_sar_specs *sar) |
4580 | { |
4581 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4582 | |
4583 | if (!local->ops->set_sar_specs) |
4584 | return -EOPNOTSUPP; |
4585 | |
4586 | return local->ops->set_sar_specs(&local->hw, sar); |
4587 | } |
4588 | |
4589 | static int |
4590 | ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata, |
4591 | u64 *changed) |
4592 | { |
4593 | switch (sdata->vif.type) { |
4594 | case NL80211_IFTYPE_AP: { |
4595 | int ret; |
4596 | |
4597 | if (!sdata->deflink.u.ap.next_beacon) |
4598 | return -EINVAL; |
4599 | |
4600 | ret = ieee80211_assign_beacon(sdata, link: &sdata->deflink, |
4601 | params: sdata->deflink.u.ap.next_beacon, |
4602 | NULL, NULL, changed); |
4603 | ieee80211_free_next_beacon(link: &sdata->deflink); |
4604 | |
4605 | if (ret < 0) |
4606 | return ret; |
4607 | |
4608 | break; |
4609 | } |
4610 | default: |
4611 | WARN_ON_ONCE(1); |
4612 | return -EINVAL; |
4613 | } |
4614 | |
4615 | return 0; |
4616 | } |
4617 | |
4618 | static int |
4619 | ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata, |
4620 | struct cfg80211_color_change_settings *params, |
4621 | u64 *changed) |
4622 | { |
4623 | struct ieee80211_color_change_settings color_change = {}; |
4624 | int err; |
4625 | |
4626 | switch (sdata->vif.type) { |
4627 | case NL80211_IFTYPE_AP: |
4628 | sdata->deflink.u.ap.next_beacon = |
4629 | cfg80211_beacon_dup(beacon: ¶ms->beacon_next); |
4630 | if (!sdata->deflink.u.ap.next_beacon) |
4631 | return -ENOMEM; |
4632 | |
4633 | if (params->count <= 1) |
4634 | break; |
4635 | |
4636 | color_change.counter_offset_beacon = |
4637 | params->counter_offset_beacon; |
4638 | color_change.counter_offset_presp = |
4639 | params->counter_offset_presp; |
4640 | color_change.count = params->count; |
4641 | |
4642 | err = ieee80211_assign_beacon(sdata, link: &sdata->deflink, |
4643 | params: ¶ms->beacon_color_change, |
4644 | NULL, cca: &color_change, changed); |
4645 | if (err < 0) { |
4646 | ieee80211_free_next_beacon(link: &sdata->deflink); |
4647 | return err; |
4648 | } |
4649 | break; |
4650 | default: |
4651 | return -EOPNOTSUPP; |
4652 | } |
4653 | |
4654 | return 0; |
4655 | } |
4656 | |
4657 | static void |
4658 | ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata, |
4659 | u8 color, int enable, u64 changed) |
4660 | { |
4661 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
4662 | |
4663 | sdata->vif.bss_conf.he_bss_color.color = color; |
4664 | sdata->vif.bss_conf.he_bss_color.enabled = enable; |
4665 | changed |= BSS_CHANGED_HE_BSS_COLOR; |
4666 | |
4667 | ieee80211_link_info_change_notify(sdata, link: &sdata->deflink, changed); |
4668 | |
4669 | if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) { |
4670 | struct ieee80211_sub_if_data *child; |
4671 | |
4672 | list_for_each_entry(child, &sdata->local->interfaces, list) { |
4673 | if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) { |
4674 | child->vif.bss_conf.he_bss_color.color = color; |
4675 | child->vif.bss_conf.he_bss_color.enabled = enable; |
4676 | ieee80211_link_info_change_notify(sdata: child, |
4677 | link: &child->deflink, |
4678 | changed: BSS_CHANGED_HE_BSS_COLOR); |
4679 | } |
4680 | } |
4681 | } |
4682 | } |
4683 | |
4684 | static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata) |
4685 | { |
4686 | struct ieee80211_local *local = sdata->local; |
4687 | u64 changed = 0; |
4688 | int err; |
4689 | |
4690 | lockdep_assert_wiphy(local->hw.wiphy); |
4691 | |
4692 | sdata->vif.bss_conf.color_change_active = false; |
4693 | |
4694 | err = ieee80211_set_after_color_change_beacon(sdata, changed: &changed); |
4695 | if (err) { |
4696 | cfg80211_color_change_aborted_notify(dev: sdata->dev); |
4697 | return err; |
4698 | } |
4699 | |
4700 | ieee80211_color_change_bss_config_notify(sdata, |
4701 | color: sdata->vif.bss_conf.color_change_color, |
4702 | enable: 1, changed); |
4703 | cfg80211_color_change_notify(dev: sdata->dev); |
4704 | |
4705 | return 0; |
4706 | } |
4707 | |
4708 | void ieee80211_color_change_finalize_work(struct wiphy *wiphy, |
4709 | struct wiphy_work *work) |
4710 | { |
4711 | struct ieee80211_sub_if_data *sdata = |
4712 | container_of(work, struct ieee80211_sub_if_data, |
4713 | deflink.color_change_finalize_work); |
4714 | struct ieee80211_local *local = sdata->local; |
4715 | |
4716 | lockdep_assert_wiphy(local->hw.wiphy); |
4717 | |
4718 | /* AP might have been stopped while waiting for the lock. */ |
4719 | if (!sdata->vif.bss_conf.color_change_active) |
4720 | return; |
4721 | |
4722 | if (!ieee80211_sdata_running(sdata)) |
4723 | return; |
4724 | |
4725 | ieee80211_color_change_finalize(sdata); |
4726 | } |
4727 | |
4728 | void ieee80211_color_collision_detection_work(struct work_struct *work) |
4729 | { |
4730 | struct delayed_work *delayed_work = to_delayed_work(work); |
4731 | struct ieee80211_link_data *link = |
4732 | container_of(delayed_work, struct ieee80211_link_data, |
4733 | color_collision_detect_work); |
4734 | struct ieee80211_sub_if_data *sdata = link->sdata; |
4735 | |
4736 | cfg80211_obss_color_collision_notify(dev: sdata->dev, color_bitmap: link->color_bitmap); |
4737 | } |
4738 | |
4739 | void ieee80211_color_change_finish(struct ieee80211_vif *vif) |
4740 | { |
4741 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif); |
4742 | |
4743 | wiphy_work_queue(wiphy: sdata->local->hw.wiphy, |
4744 | work: &sdata->deflink.color_change_finalize_work); |
4745 | } |
4746 | EXPORT_SYMBOL_GPL(ieee80211_color_change_finish); |
4747 | |
4748 | void |
4749 | ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif, |
4750 | u64 color_bitmap, gfp_t gfp) |
4751 | { |
4752 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(p: vif); |
4753 | struct ieee80211_link_data *link = &sdata->deflink; |
4754 | |
4755 | if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) |
4756 | return; |
4757 | |
4758 | if (delayed_work_pending(&link->color_collision_detect_work)) |
4759 | return; |
4760 | |
4761 | link->color_bitmap = color_bitmap; |
4762 | /* queue the color collision detection event every 500 ms in order to |
4763 | * avoid sending too much netlink messages to userspace. |
4764 | */ |
4765 | ieee80211_queue_delayed_work(hw: &sdata->local->hw, |
4766 | dwork: &link->color_collision_detect_work, |
4767 | delay: msecs_to_jiffies(m: 500)); |
4768 | } |
4769 | EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify); |
4770 | |
4771 | static int |
4772 | ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev, |
4773 | struct cfg80211_color_change_settings *params) |
4774 | { |
4775 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4776 | struct ieee80211_local *local = sdata->local; |
4777 | u64 changed = 0; |
4778 | int err; |
4779 | |
4780 | lockdep_assert_wiphy(local->hw.wiphy); |
4781 | |
4782 | if (sdata->vif.bss_conf.nontransmitted) |
4783 | return -EINVAL; |
4784 | |
4785 | /* don't allow another color change if one is already active or if csa |
4786 | * is active |
4787 | */ |
4788 | if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) { |
4789 | err = -EBUSY; |
4790 | goto out; |
4791 | } |
4792 | |
4793 | err = ieee80211_set_color_change_beacon(sdata, params, changed: &changed); |
4794 | if (err) |
4795 | goto out; |
4796 | |
4797 | sdata->vif.bss_conf.color_change_active = true; |
4798 | sdata->vif.bss_conf.color_change_color = params->color; |
4799 | |
4800 | cfg80211_color_change_started_notify(dev: sdata->dev, count: params->count); |
4801 | |
4802 | if (changed) |
4803 | ieee80211_color_change_bss_config_notify(sdata, color: 0, enable: 0, changed); |
4804 | else |
4805 | /* if the beacon didn't change, we can finalize immediately */ |
4806 | ieee80211_color_change_finalize(sdata); |
4807 | |
4808 | out: |
4809 | |
4810 | return err; |
4811 | } |
4812 | |
4813 | static int |
4814 | ieee80211_set_radar_background(struct wiphy *wiphy, |
4815 | struct cfg80211_chan_def *chandef) |
4816 | { |
4817 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4818 | |
4819 | if (!local->ops->set_radar_background) |
4820 | return -EOPNOTSUPP; |
4821 | |
4822 | return local->ops->set_radar_background(&local->hw, chandef); |
4823 | } |
4824 | |
4825 | static int ieee80211_add_intf_link(struct wiphy *wiphy, |
4826 | struct wireless_dev *wdev, |
4827 | unsigned int link_id) |
4828 | { |
4829 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
4830 | |
4831 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
4832 | |
4833 | if (wdev->use_4addr) |
4834 | return -EOPNOTSUPP; |
4835 | |
4836 | return ieee80211_vif_set_links(sdata, new_links: wdev->valid_links, dormant_links: 0); |
4837 | } |
4838 | |
4839 | static void ieee80211_del_intf_link(struct wiphy *wiphy, |
4840 | struct wireless_dev *wdev, |
4841 | unsigned int link_id) |
4842 | { |
4843 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
4844 | |
4845 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
4846 | |
4847 | ieee80211_vif_set_links(sdata, new_links: wdev->valid_links, dormant_links: 0); |
4848 | } |
4849 | |
4850 | static int sta_add_link_station(struct ieee80211_local *local, |
4851 | struct ieee80211_sub_if_data *sdata, |
4852 | struct link_station_parameters *params) |
4853 | { |
4854 | struct sta_info *sta; |
4855 | int ret; |
4856 | |
4857 | sta = sta_info_get_bss(sdata, addr: params->mld_mac); |
4858 | if (!sta) |
4859 | return -ENOENT; |
4860 | |
4861 | if (!sta->sta.valid_links) |
4862 | return -EINVAL; |
4863 | |
4864 | if (sta->sta.valid_links & BIT(params->link_id)) |
4865 | return -EALREADY; |
4866 | |
4867 | ret = ieee80211_sta_allocate_link(sta, link_id: params->link_id); |
4868 | if (ret) |
4869 | return ret; |
4870 | |
4871 | ret = sta_link_apply_parameters(local, sta, new_link: true, params); |
4872 | if (ret) { |
4873 | ieee80211_sta_free_link(sta, link_id: params->link_id); |
4874 | return ret; |
4875 | } |
4876 | |
4877 | /* ieee80211_sta_activate_link frees the link upon failure */ |
4878 | return ieee80211_sta_activate_link(sta, link_id: params->link_id); |
4879 | } |
4880 | |
4881 | static int |
4882 | ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev, |
4883 | struct link_station_parameters *params) |
4884 | { |
4885 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4886 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4887 | |
4888 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
4889 | |
4890 | return sta_add_link_station(local, sdata, params); |
4891 | } |
4892 | |
4893 | static int sta_mod_link_station(struct ieee80211_local *local, |
4894 | struct ieee80211_sub_if_data *sdata, |
4895 | struct link_station_parameters *params) |
4896 | { |
4897 | struct sta_info *sta; |
4898 | |
4899 | sta = sta_info_get_bss(sdata, addr: params->mld_mac); |
4900 | if (!sta) |
4901 | return -ENOENT; |
4902 | |
4903 | if (!(sta->sta.valid_links & BIT(params->link_id))) |
4904 | return -EINVAL; |
4905 | |
4906 | return sta_link_apply_parameters(local, sta, new_link: false, params); |
4907 | } |
4908 | |
4909 | static int |
4910 | ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev, |
4911 | struct link_station_parameters *params) |
4912 | { |
4913 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4914 | struct ieee80211_local *local = wiphy_priv(wiphy); |
4915 | |
4916 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
4917 | |
4918 | return sta_mod_link_station(local, sdata, params); |
4919 | } |
4920 | |
4921 | static int sta_del_link_station(struct ieee80211_sub_if_data *sdata, |
4922 | struct link_station_del_parameters *params) |
4923 | { |
4924 | struct sta_info *sta; |
4925 | |
4926 | sta = sta_info_get_bss(sdata, addr: params->mld_mac); |
4927 | if (!sta) |
4928 | return -ENOENT; |
4929 | |
4930 | if (!(sta->sta.valid_links & BIT(params->link_id))) |
4931 | return -EINVAL; |
4932 | |
4933 | /* must not create a STA without links */ |
4934 | if (sta->sta.valid_links == BIT(params->link_id)) |
4935 | return -EINVAL; |
4936 | |
4937 | ieee80211_sta_remove_link(sta, link_id: params->link_id); |
4938 | |
4939 | return 0; |
4940 | } |
4941 | |
4942 | static int |
4943 | ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev, |
4944 | struct link_station_del_parameters *params) |
4945 | { |
4946 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4947 | |
4948 | lockdep_assert_wiphy(sdata->local->hw.wiphy); |
4949 | |
4950 | return sta_del_link_station(sdata, params); |
4951 | } |
4952 | |
4953 | static int ieee80211_set_hw_timestamp(struct wiphy *wiphy, |
4954 | struct net_device *dev, |
4955 | struct cfg80211_set_hw_timestamp *hwts) |
4956 | { |
4957 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
4958 | struct ieee80211_local *local = sdata->local; |
4959 | |
4960 | if (!local->ops->set_hw_timestamp) |
4961 | return -EOPNOTSUPP; |
4962 | |
4963 | if (!check_sdata_in_driver(sdata)) |
4964 | return -EIO; |
4965 | |
4966 | return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts); |
4967 | } |
4968 | |
4969 | const struct cfg80211_ops mac80211_config_ops = { |
4970 | .add_virtual_intf = ieee80211_add_iface, |
4971 | .del_virtual_intf = ieee80211_del_iface, |
4972 | .change_virtual_intf = ieee80211_change_iface, |
4973 | .start_p2p_device = ieee80211_start_p2p_device, |
4974 | .stop_p2p_device = ieee80211_stop_p2p_device, |
4975 | .add_key = ieee80211_add_key, |
4976 | .del_key = ieee80211_del_key, |
4977 | .get_key = ieee80211_get_key, |
4978 | .set_default_key = ieee80211_config_default_key, |
4979 | .set_default_mgmt_key = ieee80211_config_default_mgmt_key, |
4980 | .set_default_beacon_key = ieee80211_config_default_beacon_key, |
4981 | .start_ap = ieee80211_start_ap, |
4982 | .change_beacon = ieee80211_change_beacon, |
4983 | .stop_ap = ieee80211_stop_ap, |
4984 | .add_station = ieee80211_add_station, |
4985 | .del_station = ieee80211_del_station, |
4986 | .change_station = ieee80211_change_station, |
4987 | .get_station = ieee80211_get_station, |
4988 | .dump_station = ieee80211_dump_station, |
4989 | .dump_survey = ieee80211_dump_survey, |
4990 | #ifdef CONFIG_MAC80211_MESH |
4991 | .add_mpath = ieee80211_add_mpath, |
4992 | .del_mpath = ieee80211_del_mpath, |
4993 | .change_mpath = ieee80211_change_mpath, |
4994 | .get_mpath = ieee80211_get_mpath, |
4995 | .dump_mpath = ieee80211_dump_mpath, |
4996 | .get_mpp = ieee80211_get_mpp, |
4997 | .dump_mpp = ieee80211_dump_mpp, |
4998 | .update_mesh_config = ieee80211_update_mesh_config, |
4999 | .get_mesh_config = ieee80211_get_mesh_config, |
5000 | .join_mesh = ieee80211_join_mesh, |
5001 | .leave_mesh = ieee80211_leave_mesh, |
5002 | #endif |
5003 | .join_ocb = ieee80211_join_ocb, |
5004 | .leave_ocb = ieee80211_leave_ocb, |
5005 | .change_bss = ieee80211_change_bss, |
5006 | .inform_bss = ieee80211_inform_bss, |
5007 | .set_txq_params = ieee80211_set_txq_params, |
5008 | .set_monitor_channel = ieee80211_set_monitor_channel, |
5009 | .suspend = ieee80211_suspend, |
5010 | .resume = ieee80211_resume, |
5011 | .scan = ieee80211_scan, |
5012 | .abort_scan = ieee80211_abort_scan, |
5013 | .sched_scan_start = ieee80211_sched_scan_start, |
5014 | .sched_scan_stop = ieee80211_sched_scan_stop, |
5015 | .auth = ieee80211_auth, |
5016 | .assoc = ieee80211_assoc, |
5017 | .deauth = ieee80211_deauth, |
5018 | .disassoc = ieee80211_disassoc, |
5019 | .join_ibss = ieee80211_join_ibss, |
5020 | .leave_ibss = ieee80211_leave_ibss, |
5021 | .set_mcast_rate = ieee80211_set_mcast_rate, |
5022 | .set_wiphy_params = ieee80211_set_wiphy_params, |
5023 | .set_tx_power = ieee80211_set_tx_power, |
5024 | .get_tx_power = ieee80211_get_tx_power, |
5025 | .rfkill_poll = ieee80211_rfkill_poll, |
5026 | CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) |
5027 | CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) |
5028 | .set_power_mgmt = ieee80211_set_power_mgmt, |
5029 | .set_bitrate_mask = ieee80211_set_bitrate_mask, |
5030 | .remain_on_channel = ieee80211_remain_on_channel, |
5031 | .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, |
5032 | .mgmt_tx = ieee80211_mgmt_tx, |
5033 | .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, |
5034 | .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, |
5035 | .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, |
5036 | .update_mgmt_frame_registrations = |
5037 | ieee80211_update_mgmt_frame_registrations, |
5038 | .set_antenna = ieee80211_set_antenna, |
5039 | .get_antenna = ieee80211_get_antenna, |
5040 | .set_rekey_data = ieee80211_set_rekey_data, |
5041 | .tdls_oper = ieee80211_tdls_oper, |
5042 | .tdls_mgmt = ieee80211_tdls_mgmt, |
5043 | .tdls_channel_switch = ieee80211_tdls_channel_switch, |
5044 | .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, |
5045 | .probe_client = ieee80211_probe_client, |
5046 | .set_noack_map = ieee80211_set_noack_map, |
5047 | #ifdef CONFIG_PM |
5048 | .set_wakeup = ieee80211_set_wakeup, |
5049 | #endif |
5050 | .get_channel = ieee80211_cfg_get_channel, |
5051 | .start_radar_detection = ieee80211_start_radar_detection, |
5052 | .end_cac = ieee80211_end_cac, |
5053 | .channel_switch = ieee80211_channel_switch, |
5054 | .set_qos_map = ieee80211_set_qos_map, |
5055 | .set_ap_chanwidth = ieee80211_set_ap_chanwidth, |
5056 | .add_tx_ts = ieee80211_add_tx_ts, |
5057 | .del_tx_ts = ieee80211_del_tx_ts, |
5058 | .start_nan = ieee80211_start_nan, |
5059 | .stop_nan = ieee80211_stop_nan, |
5060 | .nan_change_conf = ieee80211_nan_change_conf, |
5061 | .add_nan_func = ieee80211_add_nan_func, |
5062 | .del_nan_func = ieee80211_del_nan_func, |
5063 | .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, |
5064 | .tx_control_port = ieee80211_tx_control_port, |
5065 | .get_txq_stats = ieee80211_get_txq_stats, |
5066 | .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, |
5067 | .start_pmsr = ieee80211_start_pmsr, |
5068 | .abort_pmsr = ieee80211_abort_pmsr, |
5069 | .probe_mesh_link = ieee80211_probe_mesh_link, |
5070 | .set_tid_config = ieee80211_set_tid_config, |
5071 | .reset_tid_config = ieee80211_reset_tid_config, |
5072 | .set_sar_specs = ieee80211_set_sar_specs, |
5073 | .color_change = ieee80211_color_change, |
5074 | .set_radar_background = ieee80211_set_radar_background, |
5075 | .add_intf_link = ieee80211_add_intf_link, |
5076 | .del_intf_link = ieee80211_del_intf_link, |
5077 | .add_link_station = ieee80211_add_link_station, |
5078 | .mod_link_station = ieee80211_mod_link_station, |
5079 | .del_link_station = ieee80211_del_link_station, |
5080 | .set_hw_timestamp = ieee80211_set_hw_timestamp, |
5081 | }; |
5082 | |