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) 2018-2025 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
24struct cfg80211_scan_request_int {
25 struct cfg80211_scan_info info;
26 bool notified;
27 /* must be last - variable members */
28 struct cfg80211_scan_request req;
29};
30
31struct cfg80211_registered_device {
32 const struct cfg80211_ops *ops;
33 struct list_head list;
34
35 /* rfkill support */
36 struct rfkill_ops rfkill_ops;
37 struct work_struct rfkill_block;
38
39 /* ISO / IEC 3166 alpha2 for which this device is receiving
40 * country IEs on, this can help disregard country IEs from APs
41 * on the same alpha2 quickly. The alpha2 may differ from
42 * cfg80211_regdomain's alpha2 when an intersection has occurred.
43 * If the AP is reconfigured this can also be used to tell us if
44 * the country on the country IE changed. */
45 char country_ie_alpha2[2];
46
47 /*
48 * the driver requests the regulatory core to set this regulatory
49 * domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
50 * devices using the regulatory_set_wiphy_regd() API
51 */
52 const struct ieee80211_regdomain *requested_regd;
53
54 /* If a Country IE has been received this tells us the environment
55 * which its telling us its in. This defaults to ENVIRON_ANY */
56 enum environment_cap env;
57
58 /* wiphy index, internal only */
59 int wiphy_idx;
60
61 /* protected by RTNL */
62 int devlist_generation, wdev_id;
63 int opencount;
64 wait_queue_head_t dev_wait;
65
66 struct list_head beacon_registrations;
67 spinlock_t beacon_registrations_lock;
68
69 /* protected by RTNL only */
70 int num_running_ifaces;
71 int num_running_monitor_ifaces;
72 u64 cookie_counter;
73
74 /* BSSes/scanning */
75 spinlock_t bss_lock;
76 struct list_head bss_list;
77 struct rb_root bss_tree;
78 u32 bss_generation;
79 u32 bss_entries;
80 struct cfg80211_scan_request_int *scan_req; /* protected by RTNL */
81 struct cfg80211_scan_request_int *int_scan_req;
82 struct sk_buff *scan_msg;
83 struct list_head sched_scan_req_list;
84 time64_t suspend_at;
85 struct wiphy_work scan_done_wk;
86
87 struct genl_info *cur_cmd_info;
88
89 struct work_struct conn_work;
90 struct work_struct event_work;
91
92 struct delayed_work dfs_update_channels_wk;
93
94 struct wireless_dev *background_radar_wdev;
95 struct cfg80211_chan_def background_radar_chandef;
96 struct delayed_work background_cac_done_wk;
97 struct work_struct background_cac_abort_wk;
98
99 /* netlink port which started critical protocol (0 means not started) */
100 u32 crit_proto_nlportid;
101
102 struct cfg80211_coalesce *coalesce;
103
104 struct work_struct destroy_work;
105 struct wiphy_work sched_scan_stop_wk;
106 struct work_struct sched_scan_res_wk;
107
108 struct cfg80211_chan_def radar_chandef;
109 struct work_struct propagate_radar_detect_wk;
110
111 struct cfg80211_chan_def cac_done_chandef;
112 struct work_struct propagate_cac_done_wk;
113
114 struct work_struct mgmt_registrations_update_wk;
115 /* lock for all wdev lists */
116 spinlock_t mgmt_registrations_lock;
117
118 struct work_struct wiphy_work;
119 struct list_head wiphy_work_list;
120 /* protects the list above */
121 spinlock_t wiphy_work_lock;
122 bool suspended;
123
124 /* must be last because of the way we do wiphy_priv(),
125 * and it should at least be aligned to NETDEV_ALIGN */
126 struct wiphy wiphy __aligned(NETDEV_ALIGN);
127};
128
129static inline
130struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy)
131{
132 BUG_ON(!wiphy);
133 return container_of(wiphy, struct cfg80211_registered_device, wiphy);
134}
135
136static inline void
137cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
138{
139#ifdef CONFIG_PM
140 int i;
141
142 if (!rdev->wiphy.wowlan_config)
143 return;
144 for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
145 kfree(objp: rdev->wiphy.wowlan_config->patterns[i].mask);
146 kfree(objp: rdev->wiphy.wowlan_config->patterns);
147 if (rdev->wiphy.wowlan_config->tcp &&
148 rdev->wiphy.wowlan_config->tcp->sock)
149 sock_release(sock: rdev->wiphy.wowlan_config->tcp->sock);
150 kfree(objp: rdev->wiphy.wowlan_config->tcp);
151 kfree(objp: rdev->wiphy.wowlan_config->nd_config);
152 kfree(objp: rdev->wiphy.wowlan_config);
153#endif
154}
155
156static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)
157{
158 u64 r = ++rdev->cookie_counter;
159
160 if (WARN_ON(r == 0))
161 r = ++rdev->cookie_counter;
162
163 return r;
164}
165
166extern struct workqueue_struct *cfg80211_wq;
167extern struct list_head cfg80211_rdev_list;
168extern int cfg80211_rdev_list_generation;
169
170/* This is constructed like this so it can be used in if/else */
171static inline int for_each_rdev_check_rtnl(void)
172{
173 ASSERT_RTNL();
174 return 0;
175}
176#define for_each_rdev(rdev) \
177 if (for_each_rdev_check_rtnl()) {} else \
178 list_for_each_entry(rdev, &cfg80211_rdev_list, list)
179
180enum bss_source_type {
181 BSS_SOURCE_DIRECT = 0,
182 BSS_SOURCE_MBSSID,
183 BSS_SOURCE_STA_PROFILE,
184};
185
186struct cfg80211_internal_bss {
187 struct list_head list;
188 struct list_head hidden_list;
189 struct rb_node rbn;
190 unsigned long ts;
191 unsigned long refcount;
192 atomic_t hold;
193
194 /* time at the start of the reception of the first octet of the
195 * timestamp field of the last beacon/probe received for this BSS.
196 * The time is the TSF of the BSS specified by %parent_bssid.
197 */
198 u64 parent_tsf;
199
200 /* the BSS according to which %parent_tsf is set. This is set to
201 * the BSS that the interface that requested the scan was connected to
202 * when the beacon/probe was received.
203 */
204 u8 parent_bssid[ETH_ALEN] __aligned(2);
205
206 enum bss_source_type bss_source;
207
208 /* must be last because of priv member */
209 struct cfg80211_bss pub;
210};
211
212static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
213{
214 return container_of(pub, struct cfg80211_internal_bss, pub);
215}
216
217static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
218{
219 atomic_inc(v: &bss->hold);
220 if (bss->pub.transmitted_bss) {
221 bss = container_of(bss->pub.transmitted_bss,
222 struct cfg80211_internal_bss, pub);
223 atomic_inc(v: &bss->hold);
224 }
225}
226
227static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
228{
229 int r = atomic_dec_return(v: &bss->hold);
230 WARN_ON(r < 0);
231 if (bss->pub.transmitted_bss) {
232 bss = container_of(bss->pub.transmitted_bss,
233 struct cfg80211_internal_bss, pub);
234 r = atomic_dec_return(v: &bss->hold);
235 WARN_ON(r < 0);
236 }
237}
238
239
240struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
241int get_wiphy_idx(struct wiphy *wiphy);
242
243struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
244
245int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
246 struct net *net);
247
248void cfg80211_init_wdev(struct wireless_dev *wdev);
249void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
250 struct wireless_dev *wdev);
251
252static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
253{
254 lockdep_assert_held(&rdev->wiphy.mtx);
255
256 return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
257 rdev->num_running_ifaces > 0;
258}
259
260enum cfg80211_event_type {
261 EVENT_CONNECT_RESULT,
262 EVENT_ROAMED,
263 EVENT_DISCONNECTED,
264 EVENT_IBSS_JOINED,
265 EVENT_STOPPED,
266 EVENT_PORT_AUTHORIZED,
267};
268
269struct cfg80211_event {
270 struct list_head list;
271 enum cfg80211_event_type type;
272
273 union {
274 struct cfg80211_connect_resp_params cr;
275 struct cfg80211_roam_info rm;
276 struct {
277 const u8 *ie;
278 size_t ie_len;
279 u16 reason;
280 bool locally_generated;
281 } dc;
282 struct {
283 u8 bssid[ETH_ALEN];
284 struct ieee80211_channel *channel;
285 } ij;
286 struct {
287 u8 peer_addr[ETH_ALEN];
288 const u8 *td_bitmap;
289 u8 td_bitmap_len;
290 } pa;
291 };
292};
293
294struct cfg80211_cached_keys {
295 struct key_params params[4];
296 u8 data[4][WLAN_KEY_LEN_WEP104];
297 int def;
298};
299
300struct cfg80211_beacon_registration {
301 struct list_head list;
302 u32 nlportid;
303};
304
305struct cfg80211_cqm_config {
306 struct rcu_head rcu_head;
307 u32 rssi_hyst;
308 s32 last_rssi_event_value;
309 enum nl80211_cqm_rssi_threshold_event last_rssi_event_type;
310 bool use_range_api;
311 int n_rssi_thresholds;
312 s32 rssi_thresholds[] __counted_by(n_rssi_thresholds);
313};
314
315void cfg80211_cqm_rssi_notify_work(struct wiphy *wiphy,
316 struct wiphy_work *work);
317
318void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
319
320/* free object */
321void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
322
323int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
324 char *newname);
325
326void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
327
328void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
329void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
330 unsigned long age_secs);
331void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
332 unsigned int link,
333 struct ieee80211_channel *channel);
334
335/* IBSS */
336int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
337 struct net_device *dev,
338 struct cfg80211_ibss_params *params,
339 struct cfg80211_cached_keys *connkeys);
340void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
341int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
342 struct net_device *dev, bool nowext);
343void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
344 struct ieee80211_channel *channel);
345int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
346 struct wireless_dev *wdev);
347
348/* mesh */
349extern const struct mesh_config default_mesh_config;
350extern const struct mesh_setup default_mesh_setup;
351int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
352 struct net_device *dev,
353 struct mesh_setup *setup,
354 const struct mesh_config *conf);
355int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
356 struct net_device *dev);
357int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
358 struct wireless_dev *wdev,
359 struct cfg80211_chan_def *chandef);
360
361/* OCB */
362int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
363 struct net_device *dev,
364 struct ocb_setup *setup);
365int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
366 struct net_device *dev);
367
368/* AP */
369int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
370 struct net_device *dev, int link,
371 bool notify);
372
373/* MLME */
374int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
375 struct net_device *dev,
376 struct cfg80211_auth_request *req);
377int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
378 struct net_device *dev,
379 struct cfg80211_assoc_request *req,
380 struct netlink_ext_ack *extack);
381int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
382 struct net_device *dev, const u8 *bssid,
383 const u8 *ie, int ie_len, u16 reason,
384 bool local_state_change);
385int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
386 struct net_device *dev, const u8 *ap_addr,
387 const u8 *ie, int ie_len, u16 reason,
388 bool local_state_change);
389void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
390 struct net_device *dev);
391int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
392 u16 frame_type, const u8 *match_data,
393 int match_len, bool multicast_rx,
394 struct netlink_ext_ack *extack);
395void cfg80211_mgmt_registrations_update_wk(struct work_struct *wk);
396void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
397void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
398int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
399 struct wireless_dev *wdev,
400 struct cfg80211_mgmt_tx_params *params,
401 u64 *cookie);
402void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
403 const struct ieee80211_ht_cap *ht_capa_mask);
404void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
405 const struct ieee80211_vht_cap *vht_capa_mask);
406
407/* SME events */
408int cfg80211_connect(struct cfg80211_registered_device *rdev,
409 struct net_device *dev,
410 struct cfg80211_connect_params *connect,
411 struct cfg80211_cached_keys *connkeys,
412 const u8 *prev_bssid);
413void __cfg80211_connect_result(struct net_device *dev,
414 struct cfg80211_connect_resp_params *params,
415 bool wextev);
416void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
417 size_t ie_len, u16 reason, bool from_ap);
418int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
419 struct net_device *dev, u16 reason,
420 bool wextev);
421void __cfg80211_roamed(struct wireless_dev *wdev,
422 struct cfg80211_roam_info *info);
423void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *peer_addr,
424 const u8 *td_bitmap, u8 td_bitmap_len);
425int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
426 struct wireless_dev *wdev);
427void cfg80211_autodisconnect_wk(struct work_struct *work);
428
429/* SME implementation */
430void cfg80211_conn_work(struct work_struct *work);
431void cfg80211_sme_scan_done(struct net_device *dev);
432bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
433void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
434void cfg80211_sme_disassoc(struct wireless_dev *wdev);
435void cfg80211_sme_deauth(struct wireless_dev *wdev);
436void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
437void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
438void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
439
440/* internal helpers */
441bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
442bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,
443 int key_idx, bool pairwise);
444int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
445 struct key_params *params, int key_idx,
446 bool pairwise, const u8 *mac_addr);
447void __cfg80211_scan_done(struct wiphy *wiphy, struct wiphy_work *wk);
448void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
449 bool send_message);
450void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
451 struct cfg80211_sched_scan_request *req);
452int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
453 bool want_multi);
454void cfg80211_sched_scan_results_wk(struct work_struct *work);
455int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
456 struct cfg80211_sched_scan_request *req,
457 bool driver_initiated);
458int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
459 u64 reqid, bool driver_initiated);
460void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
461int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
462 struct net_device *dev, enum nl80211_iftype ntype,
463 struct vif_params *params);
464void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
465void cfg80211_process_wiphy_works(struct cfg80211_registered_device *rdev,
466 struct wiphy_work *end);
467void cfg80211_process_wdev_events(struct wireless_dev *wdev);
468
469bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
470 u32 center_freq_khz, u32 bw_khz);
471
472int cfg80211_scan(struct cfg80211_registered_device *rdev);
473
474extern struct work_struct cfg80211_disconnect_work;
475
476#define NL80211_BSS_USE_FOR_ALL (NL80211_BSS_USE_FOR_NORMAL | \
477 NL80211_BSS_USE_FOR_MLD_LINK)
478
479void cfg80211_set_dfs_state(struct wiphy *wiphy,
480 const struct cfg80211_chan_def *chandef,
481 enum nl80211_dfs_state dfs_state);
482
483void cfg80211_dfs_channels_update_work(struct work_struct *work);
484
485void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
486
487int
488cfg80211_start_background_radar_detection(struct cfg80211_registered_device *rdev,
489 struct wireless_dev *wdev,
490 struct cfg80211_chan_def *chandef);
491
492void cfg80211_stop_radar_detection(struct wireless_dev *wdev);
493void cfg80211_stop_background_radar_detection(struct wireless_dev *wdev);
494
495void cfg80211_background_cac_done_wk(struct work_struct *work);
496
497void cfg80211_background_cac_abort_wk(struct work_struct *work);
498
499bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
500 struct ieee80211_channel *chan);
501
502bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
503
504bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
505 struct ieee80211_channel *chan,
506 bool primary_only);
507bool cfg80211_wdev_on_sub_chan(struct wireless_dev *wdev,
508 struct ieee80211_channel *chan,
509 bool primary_only);
510bool _cfg80211_chandef_usable(struct wiphy *wiphy,
511 const struct cfg80211_chan_def *chandef,
512 u32 prohibited_flags,
513 u32 permitting_flags);
514
515static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
516{
517 unsigned long end = jiffies;
518
519 if (end >= start)
520 return jiffies_to_msecs(j: end - start);
521
522 return jiffies_to_msecs(j: end + (ULONG_MAX - start) + 1);
523}
524
525int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
526 struct net_device *dev,
527 struct cfg80211_chan_def *chandef);
528
529int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
530 const u8 *rates, unsigned int n_rates,
531 u32 *mask);
532
533int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
534 enum nl80211_iftype iftype, u32 beacon_int);
535
536void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
537 enum nl80211_iftype iftype, int num);
538
539void cfg80211_leave(struct cfg80211_registered_device *rdev,
540 struct wireless_dev *wdev);
541
542void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
543 struct wireless_dev *wdev);
544
545void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
546 struct wireless_dev *wdev);
547
548struct cfg80211_internal_bss *
549cfg80211_bss_update(struct cfg80211_registered_device *rdev,
550 struct cfg80211_internal_bss *tmp,
551 bool signal_valid, unsigned long ts);
552
553enum ieee80211_ap_reg_power
554cfg80211_get_6ghz_power_type(const u8 *elems, size_t elems_len,
555 u32 client_flags);
556
557#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
558#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
559#else
560/*
561 * Trick to enable using it as a condition,
562 * and also not give a warning when it's
563 * not used that way.
564 */
565#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
566#endif
567
568void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
569void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
570void cfg80211_pmsr_free_wk(struct work_struct *work);
571
572void cfg80211_remove_link(struct wireless_dev *wdev, unsigned int link_id);
573void cfg80211_remove_links(struct wireless_dev *wdev);
574int cfg80211_remove_virtual_intf(struct cfg80211_registered_device *rdev,
575 struct wireless_dev *wdev);
576void cfg80211_wdev_release_link_bsses(struct wireless_dev *wdev, u16 link_mask);
577
578int cfg80211_assoc_ml_reconf(struct cfg80211_registered_device *rdev,
579 struct net_device *dev,
580 struct cfg80211_ml_reconf_req *req);
581
582/**
583 * struct cfg80211_colocated_ap - colocated AP information
584 *
585 * @list: linked list to all colocated APs
586 * @bssid: BSSID of the reported AP
587 * @ssid: SSID of the reported AP
588 * @ssid_len: length of the ssid
589 * @center_freq: frequency the reported AP is on
590 * @unsolicited_probe: the reported AP is part of an ESS, where all the APs
591 * that operate in the same channel as the reported AP and that might be
592 * detected by a STA receiving this frame, are transmitting unsolicited
593 * Probe Response frames every 20 TUs
594 * @oct_recommended: OCT is recommended to exchange MMPDUs with the reported AP
595 * @same_ssid: the reported AP has the same SSID as the reporting AP
596 * @multi_bss: the reported AP is part of a multiple BSSID set
597 * @transmitted_bssid: the reported AP is the transmitting BSSID
598 * @colocated_ess: all the APs that share the same ESS as the reported AP are
599 * colocated and can be discovered via legacy bands.
600 * @short_ssid_valid: short_ssid is valid and can be used
601 * @short_ssid: the short SSID for this SSID
602 * @psd_20: The 20MHz PSD EIRP of the primary 20MHz channel for the reported AP
603 */
604struct cfg80211_colocated_ap {
605 struct list_head list;
606 u8 bssid[ETH_ALEN];
607 u8 ssid[IEEE80211_MAX_SSID_LEN];
608 size_t ssid_len;
609 u32 short_ssid;
610 u32 center_freq;
611 u8 unsolicited_probe:1,
612 oct_recommended:1,
613 same_ssid:1,
614 multi_bss:1,
615 transmitted_bssid:1,
616 colocated_ess:1,
617 short_ssid_valid:1;
618 s8 psd_20;
619};
620
621#if IS_ENABLED(CONFIG_CFG80211_KUNIT_TEST)
622#define EXPORT_SYMBOL_IF_CFG80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym)
623#define VISIBLE_IF_CFG80211_KUNIT
624void cfg80211_free_coloc_ap_list(struct list_head *coloc_ap_list);
625
626int cfg80211_parse_colocated_ap(const struct cfg80211_bss_ies *ies,
627 struct list_head *list);
628
629size_t cfg80211_gen_new_ie(const u8 *ie, size_t ielen,
630 const u8 *subie, size_t subie_len,
631 u8 *new_ie, size_t new_ie_len);
632#else
633#define EXPORT_SYMBOL_IF_CFG80211_KUNIT(sym)
634#define VISIBLE_IF_CFG80211_KUNIT static
635#endif /* IS_ENABLED(CONFIG_CFG80211_KUNIT_TEST) */
636
637#endif /* __NET_WIRELESS_CORE_H */
638

source code of linux/net/wireless/core.h