xref: /linux/net/wireless/core.h (revision daa2be74b1b2302004945b2a5e32424e177cc7da)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Wireless configuration interface internals.
4  *
5  * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
6  * Copyright (C) 2018-2024 Intel Corporation
7  */
8 #ifndef __NET_WIRELESS_CORE_H
9 #define __NET_WIRELESS_CORE_H
10 #include <linux/list.h>
11 #include <linux/netdevice.h>
12 #include <linux/rbtree.h>
13 #include <linux/debugfs.h>
14 #include <linux/rfkill.h>
15 #include <linux/workqueue.h>
16 #include <linux/rtnetlink.h>
17 #include <net/genetlink.h>
18 #include <net/cfg80211.h>
19 #include "reg.h"
20 
21 
22 #define WIPHY_IDX_INVALID	-1
23 
24 struct cfg80211_registered_device {
25 	const struct cfg80211_ops *ops;
26 	struct list_head list;
27 
28 	/* rfkill support */
29 	struct rfkill_ops rfkill_ops;
30 	struct work_struct rfkill_block;
31 
32 	/* ISO / IEC 3166 alpha2 for which this device is receiving
33 	 * country IEs on, this can help disregard country IEs from APs
34 	 * on the same alpha2 quickly. The alpha2 may differ from
35 	 * cfg80211_regdomain's alpha2 when an intersection has occurred.
36 	 * If the AP is reconfigured this can also be used to tell us if
37 	 * the country on the country IE changed. */
38 	char country_ie_alpha2[2];
39 
40 	/*
41 	 * the driver requests the regulatory core to set this regulatory
42 	 * domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
43 	 * devices using the regulatory_set_wiphy_regd() API
44 	 */
45 	const struct ieee80211_regdomain *requested_regd;
46 
47 	/* If a Country IE has been received this tells us the environment
48 	 * which its telling us its in. This defaults to ENVIRON_ANY */
49 	enum environment_cap env;
50 
51 	/* wiphy index, internal only */
52 	int wiphy_idx;
53 
54 	/* protected by RTNL */
55 	int devlist_generation, wdev_id;
56 	int opencount;
57 	wait_queue_head_t dev_wait;
58 
59 	struct list_head beacon_registrations;
60 	spinlock_t beacon_registrations_lock;
61 
62 	/* protected by RTNL only */
63 	int num_running_ifaces;
64 	int num_running_monitor_ifaces;
65 	u64 cookie_counter;
66 
67 	/* BSSes/scanning */
68 	spinlock_t bss_lock;
69 	struct list_head bss_list;
70 	struct rb_root bss_tree;
71 	u32 bss_generation;
72 	u32 bss_entries;
73 	struct cfg80211_scan_request *scan_req; /* protected by RTNL */
74 	struct cfg80211_scan_request *int_scan_req;
75 	struct sk_buff *scan_msg;
76 	struct list_head sched_scan_req_list;
77 	time64_t suspend_at;
78 	struct wiphy_work scan_done_wk;
79 
80 	struct genl_info *cur_cmd_info;
81 
82 	struct work_struct conn_work;
83 	struct work_struct event_work;
84 
85 	struct delayed_work dfs_update_channels_wk;
86 
87 	struct wireless_dev *background_radar_wdev;
88 	struct cfg80211_chan_def background_radar_chandef;
89 	struct delayed_work background_cac_done_wk;
90 	struct work_struct background_cac_abort_wk;
91 
92 	/* netlink port which started critical protocol (0 means not started) */
93 	u32 crit_proto_nlportid;
94 
95 	struct cfg80211_coalesce *coalesce;
96 
97 	struct work_struct destroy_work;
98 	struct wiphy_work sched_scan_stop_wk;
99 	struct work_struct sched_scan_res_wk;
100 
101 	struct cfg80211_chan_def radar_chandef;
102 	struct work_struct propagate_radar_detect_wk;
103 
104 	struct cfg80211_chan_def cac_done_chandef;
105 	struct work_struct propagate_cac_done_wk;
106 
107 	struct work_struct mgmt_registrations_update_wk;
108 	/* lock for all wdev lists */
109 	spinlock_t mgmt_registrations_lock;
110 
111 	struct work_struct wiphy_work;
112 	struct list_head wiphy_work_list;
113 	/* protects the list above */
114 	spinlock_t wiphy_work_lock;
115 	bool suspended;
116 
117 	/* must be last because of the way we do wiphy_priv(),
118 	 * and it should at least be aligned to NETDEV_ALIGN */
119 	struct wiphy wiphy __aligned(NETDEV_ALIGN);
120 };
121 
122 static inline
123 struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy)
124 {
125 	BUG_ON(!wiphy);
126 	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
127 }
128 
129 static inline void
130 cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
131 {
132 #ifdef CONFIG_PM
133 	int i;
134 
135 	if (!rdev->wiphy.wowlan_config)
136 		return;
137 	for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
138 		kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
139 	kfree(rdev->wiphy.wowlan_config->patterns);
140 	if (rdev->wiphy.wowlan_config->tcp &&
141 	    rdev->wiphy.wowlan_config->tcp->sock)
142 		sock_release(rdev->wiphy.wowlan_config->tcp->sock);
143 	kfree(rdev->wiphy.wowlan_config->tcp);
144 	kfree(rdev->wiphy.wowlan_config->nd_config);
145 	kfree(rdev->wiphy.wowlan_config);
146 #endif
147 }
148 
149 static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)
150 {
151 	u64 r = ++rdev->cookie_counter;
152 
153 	if (WARN_ON(r == 0))
154 		r = ++rdev->cookie_counter;
155 
156 	return r;
157 }
158 
159 extern struct workqueue_struct *cfg80211_wq;
160 extern struct list_head cfg80211_rdev_list;
161 extern int cfg80211_rdev_list_generation;
162 
163 /* This is constructed like this so it can be used in if/else */
164 static inline int for_each_rdev_check_rtnl(void)
165 {
166 	ASSERT_RTNL();
167 	return 0;
168 }
169 #define for_each_rdev(rdev)						\
170 	if (for_each_rdev_check_rtnl()) {} else				\
171 		list_for_each_entry(rdev, &cfg80211_rdev_list, list)
172 
173 struct cfg80211_internal_bss {
174 	struct list_head list;
175 	struct list_head hidden_list;
176 	struct rb_node rbn;
177 	u64 ts_boottime;
178 	unsigned long ts;
179 	unsigned long refcount;
180 	atomic_t hold;
181 
182 	/* time at the start of the reception of the first octet of the
183 	 * timestamp field of the last beacon/probe received for this BSS.
184 	 * The time is the TSF of the BSS specified by %parent_bssid.
185 	 */
186 	u64 parent_tsf;
187 
188 	/* the BSS according to which %parent_tsf is set. This is set to
189 	 * the BSS that the interface that requested the scan was connected to
190 	 * when the beacon/probe was received.
191 	 */
192 	u8 parent_bssid[ETH_ALEN] __aligned(2);
193 
194 	/* must be last because of priv member */
195 	struct cfg80211_bss pub;
196 };
197 
198 static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
199 {
200 	return container_of(pub, struct cfg80211_internal_bss, pub);
201 }
202 
203 static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
204 {
205 	atomic_inc(&bss->hold);
206 	if (bss->pub.transmitted_bss) {
207 		bss = container_of(bss->pub.transmitted_bss,
208 				   struct cfg80211_internal_bss, pub);
209 		atomic_inc(&bss->hold);
210 	}
211 }
212 
213 static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
214 {
215 	int r = atomic_dec_return(&bss->hold);
216 	WARN_ON(r < 0);
217 	if (bss->pub.transmitted_bss) {
218 		bss = container_of(bss->pub.transmitted_bss,
219 				   struct cfg80211_internal_bss, pub);
220 		r = atomic_dec_return(&bss->hold);
221 		WARN_ON(r < 0);
222 	}
223 }
224 
225 
226 struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
227 int get_wiphy_idx(struct wiphy *wiphy);
228 
229 struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
230 
231 int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
232 			  struct net *net);
233 
234 void cfg80211_init_wdev(struct wireless_dev *wdev);
235 void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
236 			    struct wireless_dev *wdev);
237 
238 static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
239 {
240 	lockdep_assert_held(&rdev->wiphy.mtx);
241 
242 	return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
243 	       rdev->num_running_ifaces > 0;
244 }
245 
246 enum cfg80211_event_type {
247 	EVENT_CONNECT_RESULT,
248 	EVENT_ROAMED,
249 	EVENT_DISCONNECTED,
250 	EVENT_IBSS_JOINED,
251 	EVENT_STOPPED,
252 	EVENT_PORT_AUTHORIZED,
253 };
254 
255 struct cfg80211_event {
256 	struct list_head list;
257 	enum cfg80211_event_type type;
258 
259 	union {
260 		struct cfg80211_connect_resp_params cr;
261 		struct cfg80211_roam_info rm;
262 		struct {
263 			const u8 *ie;
264 			size_t ie_len;
265 			u16 reason;
266 			bool locally_generated;
267 		} dc;
268 		struct {
269 			u8 bssid[ETH_ALEN];
270 			struct ieee80211_channel *channel;
271 		} ij;
272 		struct {
273 			u8 peer_addr[ETH_ALEN];
274 			const u8 *td_bitmap;
275 			u8 td_bitmap_len;
276 		} pa;
277 	};
278 };
279 
280 struct cfg80211_cached_keys {
281 	struct key_params params[4];
282 	u8 data[4][WLAN_KEY_LEN_WEP104];
283 	int def;
284 };
285 
286 struct cfg80211_beacon_registration {
287 	struct list_head list;
288 	u32 nlportid;
289 };
290 
291 struct cfg80211_cqm_config {
292 	struct rcu_head rcu_head;
293 	u32 rssi_hyst;
294 	s32 last_rssi_event_value;
295 	enum nl80211_cqm_rssi_threshold_event last_rssi_event_type;
296 	bool use_range_api;
297 	int n_rssi_thresholds;
298 	s32 rssi_thresholds[] __counted_by(n_rssi_thresholds);
299 };
300 
301 void cfg80211_cqm_rssi_notify_work(struct wiphy *wiphy,
302 				   struct wiphy_work *work);
303 
304 void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
305 
306 /* free object */
307 void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
308 
309 int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
310 			char *newname);
311 
312 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
313 
314 void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
315 void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
316                       unsigned long age_secs);
317 void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
318 				     unsigned int link,
319 				     struct ieee80211_channel *channel);
320 
321 /* IBSS */
322 int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
323 			 struct net_device *dev,
324 			 struct cfg80211_ibss_params *params,
325 			 struct cfg80211_cached_keys *connkeys);
326 void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
327 int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
328 			struct net_device *dev, bool nowext);
329 void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
330 			    struct ieee80211_channel *channel);
331 int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
332 			    struct wireless_dev *wdev);
333 
334 /* mesh */
335 extern const struct mesh_config default_mesh_config;
336 extern const struct mesh_setup default_mesh_setup;
337 int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
338 			 struct net_device *dev,
339 			 struct mesh_setup *setup,
340 			 const struct mesh_config *conf);
341 int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
342 			struct net_device *dev);
343 int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
344 			      struct wireless_dev *wdev,
345 			      struct cfg80211_chan_def *chandef);
346 
347 /* OCB */
348 int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
349 		      struct net_device *dev,
350 		      struct ocb_setup *setup);
351 int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
352 		       struct net_device *dev);
353 
354 /* AP */
355 int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
356 		     struct net_device *dev, int link,
357 		     bool notify);
358 
359 /* MLME */
360 int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
361 		       struct net_device *dev,
362 		       struct cfg80211_auth_request *req);
363 int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
364 			struct net_device *dev,
365 			struct cfg80211_assoc_request *req,
366 			struct netlink_ext_ack *extack);
367 int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
368 			 struct net_device *dev, const u8 *bssid,
369 			 const u8 *ie, int ie_len, u16 reason,
370 			 bool local_state_change);
371 int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
372 			   struct net_device *dev, const u8 *ap_addr,
373 			   const u8 *ie, int ie_len, u16 reason,
374 			   bool local_state_change);
375 void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
376 			struct net_device *dev);
377 int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
378 				u16 frame_type, const u8 *match_data,
379 				int match_len, bool multicast_rx,
380 				struct netlink_ext_ack *extack);
381 void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk);
382 void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
383 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
384 int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
385 			  struct wireless_dev *wdev,
386 			  struct cfg80211_mgmt_tx_params *params,
387 			  u64 *cookie);
388 void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
389 			       const struct ieee80211_ht_cap *ht_capa_mask);
390 void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
391 				const struct ieee80211_vht_cap *vht_capa_mask);
392 
393 /* SME events */
394 int cfg80211_connect(struct cfg80211_registered_device *rdev,
395 		     struct net_device *dev,
396 		     struct cfg80211_connect_params *connect,
397 		     struct cfg80211_cached_keys *connkeys,
398 		     const u8 *prev_bssid);
399 void __cfg80211_connect_result(struct net_device *dev,
400 			       struct cfg80211_connect_resp_params *params,
401 			       bool wextev);
402 void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
403 			     size_t ie_len, u16 reason, bool from_ap);
404 int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
405 			struct net_device *dev, u16 reason,
406 			bool wextev);
407 void __cfg80211_roamed(struct wireless_dev *wdev,
408 		       struct cfg80211_roam_info *info);
409 void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *peer_addr,
410 				const u8 *td_bitmap, u8 td_bitmap_len);
411 int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
412 			      struct wireless_dev *wdev);
413 void cfg80211_autodisconnect_wk(struct work_struct *work);
414 
415 /* SME implementation */
416 void cfg80211_conn_work(struct work_struct *work);
417 void cfg80211_sme_scan_done(struct net_device *dev);
418 bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
419 void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
420 void cfg80211_sme_disassoc(struct wireless_dev *wdev);
421 void cfg80211_sme_deauth(struct wireless_dev *wdev);
422 void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
423 void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
424 void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
425 
426 /* internal helpers */
427 bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
428 bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,
429 			    int key_idx, bool pairwise);
430 int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
431 				   struct key_params *params, int key_idx,
432 				   bool pairwise, const u8 *mac_addr);
433 void __cfg80211_scan_done(struct wiphy *wiphy, struct wiphy_work *wk);
434 void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
435 			   bool send_message);
436 void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
437 				 struct cfg80211_sched_scan_request *req);
438 int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
439 				     bool want_multi);
440 void cfg80211_sched_scan_results_wk(struct work_struct *work);
441 int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
442 				 struct cfg80211_sched_scan_request *req,
443 				 bool driver_initiated);
444 int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
445 			       u64 reqid, bool driver_initiated);
446 void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
447 int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
448 			  struct net_device *dev, enum nl80211_iftype ntype,
449 			  struct vif_params *params);
450 void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
451 void cfg80211_process_wiphy_works(struct cfg80211_registered_device *rdev,
452 				  struct wiphy_work *end);
453 void cfg80211_process_wdev_events(struct wireless_dev *wdev);
454 
455 bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
456 				u32 center_freq_khz, u32 bw_khz);
457 
458 int cfg80211_scan(struct cfg80211_registered_device *rdev);
459 
460 extern struct work_struct cfg80211_disconnect_work;
461 
462 #define NL80211_BSS_USE_FOR_ALL	(NL80211_BSS_USE_FOR_NORMAL | \
463 				 NL80211_BSS_USE_FOR_MLD_LINK)
464 
465 void cfg80211_set_dfs_state(struct wiphy *wiphy,
466 			    const struct cfg80211_chan_def *chandef,
467 			    enum nl80211_dfs_state dfs_state);
468 
469 void cfg80211_dfs_channels_update_work(struct work_struct *work);
470 
471 void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
472 
473 int
474 cfg80211_start_background_radar_detection(struct cfg80211_registered_device *rdev,
475 					  struct wireless_dev *wdev,
476 					  struct cfg80211_chan_def *chandef);
477 
478 void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev);
479 
480 void cfg80211_background_cac_done_wk(struct work_struct *work);
481 
482 void cfg80211_background_cac_abort_wk(struct work_struct *work);
483 
484 bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
485 				  struct ieee80211_channel *chan);
486 
487 bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
488 
489 bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
490 			  struct ieee80211_channel *chan,
491 			  bool primary_only);
492 bool cfg80211_wdev_on_sub_chan(struct wireless_dev *wdev,
493 			       struct ieee80211_channel *chan,
494 			       bool primary_only);
495 bool _cfg80211_chandef_usable(struct wiphy *wiphy,
496 			      const struct cfg80211_chan_def *chandef,
497 			      u32 prohibited_flags,
498 			      u32 permitting_flags);
499 
500 static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
501 {
502 	unsigned long end = jiffies;
503 
504 	if (end >= start)
505 		return jiffies_to_msecs(end - start);
506 
507 	return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
508 }
509 
510 int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
511 				 struct cfg80211_chan_def *chandef);
512 
513 int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
514 			   const u8 *rates, unsigned int n_rates,
515 			   u32 *mask);
516 
517 int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
518 				 enum nl80211_iftype iftype, u32 beacon_int);
519 
520 void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
521 			       enum nl80211_iftype iftype, int num);
522 
523 void cfg80211_leave(struct cfg80211_registered_device *rdev,
524 		    struct wireless_dev *wdev);
525 
526 void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
527 			      struct wireless_dev *wdev);
528 
529 void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
530 		       struct wireless_dev *wdev);
531 
532 struct cfg80211_internal_bss *
533 cfg80211_bss_update(struct cfg80211_registered_device *rdev,
534 		    struct cfg80211_internal_bss *tmp,
535 		    bool signal_valid, unsigned long ts);
536 
537 enum ieee80211_ap_reg_power
538 cfg80211_get_6ghz_power_type(const u8 *elems, size_t elems_len);
539 
540 #ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
541 #define CFG80211_DEV_WARN_ON(cond)	WARN_ON(cond)
542 #else
543 /*
544  * Trick to enable using it as a condition,
545  * and also not give a warning when it's
546  * not used that way.
547  */
548 #define CFG80211_DEV_WARN_ON(cond)	({bool __r = (cond); __r; })
549 #endif
550 
551 void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
552 void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
553 void cfg80211_pmsr_free_wk(struct work_struct *work);
554 
555 void cfg80211_remove_link(struct wireless_dev *wdev, unsigned int link_id);
556 void cfg80211_remove_links(struct wireless_dev *wdev);
557 int cfg80211_remove_virtual_intf(struct cfg80211_registered_device *rdev,
558 				 struct wireless_dev *wdev);
559 void cfg80211_wdev_release_link_bsses(struct wireless_dev *wdev, u16 link_mask);
560 
561 /**
562  * struct cfg80211_colocated_ap - colocated AP information
563  *
564  * @list: linked list to all colocated APs
565  * @bssid: BSSID of the reported AP
566  * @ssid: SSID of the reported AP
567  * @ssid_len: length of the ssid
568  * @center_freq: frequency the reported AP is on
569  * @unsolicited_probe: the reported AP is part of an ESS, where all the APs
570  *	that operate in the same channel as the reported AP and that might be
571  *	detected by a STA receiving this frame, are transmitting unsolicited
572  *	Probe Response frames every 20 TUs
573  * @oct_recommended: OCT is recommended to exchange MMPDUs with the reported AP
574  * @same_ssid: the reported AP has the same SSID as the reporting AP
575  * @multi_bss: the reported AP is part of a multiple BSSID set
576  * @transmitted_bssid: the reported AP is the transmitting BSSID
577  * @colocated_ess: all the APs that share the same ESS as the reported AP are
578  *	colocated and can be discovered via legacy bands.
579  * @short_ssid_valid: short_ssid is valid and can be used
580  * @short_ssid: the short SSID for this SSID
581  * @psd_20: The 20MHz PSD EIRP of the primary 20MHz channel for the reported AP
582  */
583 struct cfg80211_colocated_ap {
584 	struct list_head list;
585 	u8 bssid[ETH_ALEN];
586 	u8 ssid[IEEE80211_MAX_SSID_LEN];
587 	size_t ssid_len;
588 	u32 short_ssid;
589 	u32 center_freq;
590 	u8 unsolicited_probe:1,
591 	   oct_recommended:1,
592 	   same_ssid:1,
593 	   multi_bss:1,
594 	   transmitted_bssid:1,
595 	   colocated_ess:1,
596 	   short_ssid_valid:1;
597 	s8 psd_20;
598 };
599 
600 #if IS_ENABLED(CONFIG_CFG80211_KUNIT_TEST)
601 #define EXPORT_SYMBOL_IF_CFG80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym)
602 #define VISIBLE_IF_CFG80211_KUNIT
603 void cfg80211_free_coloc_ap_list(struct list_head *coloc_ap_list);
604 
605 int cfg80211_parse_colocated_ap(const struct cfg80211_bss_ies *ies,
606 				struct list_head *list);
607 
608 size_t cfg80211_gen_new_ie(const u8 *ie, size_t ielen,
609 			   const u8 *subie, size_t subie_len,
610 			   u8 *new_ie, size_t new_ie_len);
611 #else
612 #define EXPORT_SYMBOL_IF_CFG80211_KUNIT(sym)
613 #define VISIBLE_IF_CFG80211_KUNIT static
614 #endif /* IS_ENABLED(CONFIG_CFG80211_KUNIT_TEST) */
615 
616 #endif /* __NET_WIRELESS_CORE_H */
617