1	/* SPDX-License-Identifier: GPL-2.0-only */
2	/*
3	* Copyright 2002-2005, Instant802 Networks, Inc.
4	* Copyright 2005, Devicescape Software, Inc.
5	* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6	* Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7	* Copyright 2013-2015 Intel Mobile Communications GmbH
8	* Copyright (C) 2018-2022 Intel Corporation
9	*/
10
11	#ifndef IEEE80211_I_H
12	#define IEEE80211_I_H
13
14	#include <linux/kernel.h>
15	#include <linux/device.h>
16	#include <linux/if_ether.h>
17	#include <linux/interrupt.h>
18	#include <linux/list.h>
19	#include <linux/netdevice.h>
20	#include <linux/skbuff.h>
21	#include <linux/workqueue.h>
22	#include <linux/types.h>
23	#include <linux/spinlock.h>
24	#include <linux/etherdevice.h>
25	#include <linux/leds.h>
26	#include <linux/idr.h>
27	#include <linux/rhashtable.h>
28	#include <linux/rbtree.h>
29	#include <net/ieee80211_radiotap.h>
30	#include <net/cfg80211.h>
31	#include <net/mac80211.h>
32	#include <net/fq.h>
33	#include "key.h"
34	#include "sta_info.h"
35	#include "debug.h"
36	#include "drop.h"
37
38	extern const struct cfg80211_ops mac80211_config_ops;
39
40	struct ieee80211_local;
41	struct ieee80211_mesh_fast_tx;
42
43	/* Maximum number of broadcast/multicast frames to buffer when some of the
44	* associated stations are using power saving. */
45	#define AP_MAX_BC_BUFFER 128
46
47	/* Maximum number of frames buffered to all STAs, including multicast frames.
48	* Note: increasing this limit increases the potential memory requirement. Each
49	* frame can be up to about 2 kB long. */
50	#define TOTAL_MAX_TX_BUFFER 512
51
52	/* Required encryption head and tailroom */
53	#define IEEE80211_ENCRYPT_HEADROOM 8
54	#define IEEE80211_ENCRYPT_TAILROOM 18
55
56	/* power level hasn't been configured (or set to automatic) */
57	#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
58
59	/*
60	* Some APs experience problems when working with U-APSD. Decreasing the
61	* probability of that happening by using legacy mode for all ACs but VO isn't
62	* enough.
63	*
64	* Cisco 4410N originally forced us to enable VO by default only because it
65	* treated non-VO ACs as legacy.
66	*
67	* However some APs (notably Netgear R7000) silently reclassify packets to
68	* different ACs. Since u-APSD ACs require trigger frames for frame retrieval
69	* clients would never see some frames (e.g. ARP responses) or would fetch them
70	* accidentally after a long time.
71	*
72	* It makes little sense to enable u-APSD queues by default because it needs
73	* userspace applications to be aware of it to actually take advantage of the
74	* possible additional powersavings. Implicitly depending on driver autotrigger
75	* frame support doesn't make much sense.
76	*/
77	#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
78
79	#define IEEE80211_DEFAULT_MAX_SP_LEN \
80	IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
81
82	extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
83
84	#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
85
86	#define IEEE80211_MAX_NAN_INSTANCE_ID 255
87
88	enum ieee80211_status_data {
89	IEEE80211_STATUS_TYPE_MASK = 0x00f,
90	IEEE80211_STATUS_TYPE_INVALID = 0,
91	IEEE80211_STATUS_TYPE_SMPS = 1,
92	IEEE80211_STATUS_SUBDATA_MASK = 0xff0,
93	};
94
95	/*
96	* Keep a station's queues on the active list for deficit accounting purposes
97	* if it was active or queued during the last 100ms
98	*/
99	#define AIRTIME_ACTIVE_DURATION (HZ / 10)
100
101	struct ieee80211_bss {
102	u32 device_ts_beacon, device_ts_presp;
103
104	bool wmm_used;
105	bool uapsd_supported;
106
107	#define IEEE80211_MAX_SUPP_RATES 32
108	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
109	size_t supp_rates_len;
110	struct ieee80211_rate *beacon_rate;
111
112	u32 vht_cap_info;
113
114	/*
115	* During association, we save an ERP value from a probe response so
116	* that we can feed ERP info to the driver when handling the
117	* association completes. these fields probably won't be up-to-date
118	* otherwise, you probably don't want to use them.
119	*/
120	bool has_erp_value;
121	u8 erp_value;
122
123	/* Keep track of the corruption of the last beacon/probe response. */
124	u8 corrupt_data;
125
126	/* Keep track of what bits of information we have valid info for. */
127	u8 valid_data;
128	};
129
130	/**
131	* enum ieee80211_corrupt_data_flags - BSS data corruption flags
132	* @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
133	* @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
134	*
135	* These are bss flags that are attached to a bss in the
136	* @corrupt_data field of &struct ieee80211_bss.
137	*/
138	enum ieee80211_bss_corrupt_data_flags {
139	IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
140	IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
141	};
142
143	/**
144	* enum ieee80211_valid_data_flags - BSS valid data flags
145	* @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
146	* @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
147	* @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
148	*
149	* These are bss flags that are attached to a bss in the
150	* @valid_data field of &struct ieee80211_bss. They show which parts
151	* of the data structure were received as a result of an un-corrupted
152	* beacon/probe response.
153	*/
154	enum ieee80211_bss_valid_data_flags {
155	IEEE80211_BSS_VALID_WMM = BIT(1),
156	IEEE80211_BSS_VALID_RATES = BIT(2),
157	IEEE80211_BSS_VALID_ERP = BIT(3)
158	};
159
160	typedef unsigned __bitwise ieee80211_tx_result;
161	#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
162	#define TX_DROP ((__force ieee80211_tx_result) 1u)
163	#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
164
165	#define IEEE80211_TX_UNICAST BIT(1)
166	#define IEEE80211_TX_PS_BUFFERED BIT(2)
167
168	struct ieee80211_tx_data {
169	struct sk_buff *skb;
170	struct sk_buff_head skbs;
171	struct ieee80211_local *local;
172	struct ieee80211_sub_if_data *sdata;
173	struct sta_info *sta;
174	struct ieee80211_key *key;
175	struct ieee80211_tx_rate rate;
176
177	unsigned int flags;
178	};
179
180	/**
181	* enum ieee80211_packet_rx_flags - packet RX flags
182	* @IEEE80211_RX_AMSDU: a-MSDU packet
183	* @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
184	* @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
185	*
186	* These are per-frame flags that are attached to a frame in the
187	* @rx_flags field of &struct ieee80211_rx_status.
188	*/
189	enum ieee80211_packet_rx_flags {
190	IEEE80211_RX_AMSDU = BIT(3),
191	IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
192	IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
193	};
194
195	/**
196	* enum ieee80211_rx_flags - RX data flags
197	*
198	* @IEEE80211_RX_CMNTR: received on cooked monitor already
199	* @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
200	* to cfg80211_report_obss_beacon().
201	*
202	* These flags are used across handling multiple interfaces
203	* for a single frame.
204	*/
205	enum ieee80211_rx_flags {
206	IEEE80211_RX_CMNTR = BIT(0),
207	IEEE80211_RX_BEACON_REPORTED = BIT(1),
208	};
209
210	struct ieee80211_rx_data {
211	struct list_head *list;
212	struct sk_buff *skb;
213	struct ieee80211_local *local;
214	struct ieee80211_sub_if_data *sdata;
215	struct ieee80211_link_data *link;
216	struct sta_info *sta;
217	struct link_sta_info *link_sta;
218	struct ieee80211_key *key;
219
220	unsigned int flags;
221
222	/*
223	* Index into sequence numbers array, 0..16
224	* since the last (16) is used for non-QoS,
225	* will be 16 on non-QoS frames.
226	*/
227	int seqno_idx;
228
229	/*
230	* Index into the security IV/PN arrays, 0..16
231	* since the last (16) is used for CCMP-encrypted
232	* management frames, will be set to 16 on mgmt
233	* frames and 0 on non-QoS frames.
234	*/
235	int security_idx;
236
237	int link_id;
238
239	union {
240	struct {
241	u32 iv32;
242	u16 iv16;
243	} tkip;
244	struct {
245	u8 pn[IEEE80211_CCMP_PN_LEN];
246	} ccm_gcm;
247	};
248	};
249
250	struct ieee80211_csa_settings {
251	const u16 *counter_offsets_beacon;
252	const u16 *counter_offsets_presp;
253
254	int n_counter_offsets_beacon;
255	int n_counter_offsets_presp;
256
257	u8 count;
258	};
259
260	struct ieee80211_color_change_settings {
261	u16 counter_offset_beacon;
262	u16 counter_offset_presp;
263	u8 count;
264	};
265
266	struct beacon_data {
267	u8 *head, *tail;
268	int head_len, tail_len;
269	struct ieee80211_meshconf_ie *meshconf;
270	u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
271	u8 cntdwn_current_counter;
272	struct cfg80211_mbssid_elems *mbssid_ies;
273	struct cfg80211_rnr_elems *rnr_ies;
274	struct rcu_head rcu_head;
275	};
276
277	struct probe_resp {
278	struct rcu_head rcu_head;
279	int len;
280	u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
281	u8 data[];
282	};
283
284	struct fils_discovery_data {
285	struct rcu_head rcu_head;
286	int len;
287	u8 data[];
288	};
289
290	struct unsol_bcast_probe_resp_data {
291	struct rcu_head rcu_head;
292	int len;
293	u8 data[];
294	};
295
296	struct ps_data {
297	/* yes, this looks ugly, but guarantees that we can later use
298	* bitmap_empty :)
299	* NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
300	u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
301	__aligned(__alignof__(unsigned long));
302	struct sk_buff_head bc_buf;
303	atomic_t num_sta_ps; /* number of stations in PS mode */
304	int dtim_count;
305	bool dtim_bc_mc;
306	};
307
308	struct ieee80211_if_ap {
309	struct list_head vlans; /* write-protected with RTNL and local->mtx */
310
311	struct ps_data ps;
312	atomic_t num_mcast_sta; /* number of stations receiving multicast */
313
314	bool multicast_to_unicast;
315	bool active;
316	};
317
318	struct ieee80211_if_vlan {
319	struct list_head list; /* write-protected with RTNL and local->mtx */
320
321	/* used for all tx if the VLAN is configured to 4-addr mode */
322	struct sta_info __rcu *sta;
323	atomic_t num_mcast_sta; /* number of stations receiving multicast */
324	};
325
326	struct mesh_stats {
327	__u32 fwded_mcast; /* Mesh forwarded multicast frames */
328	__u32 fwded_unicast; /* Mesh forwarded unicast frames */
329	__u32 fwded_frames; /* Mesh total forwarded frames */
330	__u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
331	__u32 dropped_frames_no_route; /* Not transmitted, no route found */
332	};
333
334	#define PREQ_Q_F_START 0x1
335	#define PREQ_Q_F_REFRESH 0x2
336	struct mesh_preq_queue {
337	struct list_head list;
338	u8 dst[ETH_ALEN];
339	u8 flags;
340	};
341
342	struct ieee80211_roc_work {
343	struct list_head list;
344
345	struct ieee80211_sub_if_data *sdata;
346
347	struct ieee80211_channel *chan;
348
349	bool started, abort, hw_begun, notified;
350	bool on_channel;
351
352	unsigned long start_time;
353
354	u32 duration, req_duration;
355	struct sk_buff *frame;
356	u64 cookie, mgmt_tx_cookie;
357	enum ieee80211_roc_type type;
358	};
359
360	/* flags used in struct ieee80211_if_managed.flags */
361	enum ieee80211_sta_flags {
362	IEEE80211_STA_CONNECTION_POLL = BIT(1),
363	IEEE80211_STA_CONTROL_PORT = BIT(2),
364	IEEE80211_STA_MFP_ENABLED = BIT(6),
365	IEEE80211_STA_UAPSD_ENABLED = BIT(7),
366	IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
367	IEEE80211_STA_ENABLE_RRM = BIT(15),
368	};
369
370	typedef u32 __bitwise ieee80211_conn_flags_t;
371
372	enum ieee80211_conn_flags {
373	IEEE80211_CONN_DISABLE_HT = (__force ieee80211_conn_flags_t)BIT(0),
374	IEEE80211_CONN_DISABLE_40MHZ = (__force ieee80211_conn_flags_t)BIT(1),
375	IEEE80211_CONN_DISABLE_VHT = (__force ieee80211_conn_flags_t)BIT(2),
376	IEEE80211_CONN_DISABLE_80P80MHZ = (__force ieee80211_conn_flags_t)BIT(3),
377	IEEE80211_CONN_DISABLE_160MHZ = (__force ieee80211_conn_flags_t)BIT(4),
378	IEEE80211_CONN_DISABLE_HE = (__force ieee80211_conn_flags_t)BIT(5),
379	IEEE80211_CONN_DISABLE_EHT = (__force ieee80211_conn_flags_t)BIT(6),
380	IEEE80211_CONN_DISABLE_320MHZ = (__force ieee80211_conn_flags_t)BIT(7),
381	};
382
383	struct ieee80211_mgd_auth_data {
384	struct cfg80211_bss *bss;
385	unsigned long timeout;
386	int tries;
387	u16 algorithm, expected_transaction;
388
389	u8 key[WLAN_KEY_LEN_WEP104];
390	u8 key_len, key_idx;
391	bool done, waiting;
392	bool peer_confirmed;
393	bool timeout_started;
394	int link_id;
395
396	u8 ap_addr[ETH_ALEN] __aligned(2);
397
398	u16 sae_trans, sae_status;
399	size_t data_len;
400	u8 data[];
401	};
402
403	struct ieee80211_mgd_assoc_data {
404	struct {
405	struct cfg80211_bss *bss;
406
407	u8 addr[ETH_ALEN] __aligned(2);
408
409	u8 ap_ht_param;
410
411	struct ieee80211_vht_cap ap_vht_cap;
412
413	size_t elems_len;
414	u8 *elems; /* pointing to inside ie[] below */
415
416	ieee80211_conn_flags_t conn_flags;
417
418	u16 status;
419
420	bool disabled;
421	} link[IEEE80211_MLD_MAX_NUM_LINKS];
422
423	u8 ap_addr[ETH_ALEN] __aligned(2);
424
425	/* this is for a workaround, so we use it only for non-MLO */
426	const u8 *supp_rates;
427	u8 supp_rates_len;
428
429	unsigned long timeout;
430	int tries;
431
432	u8 prev_ap_addr[ETH_ALEN];
433	u8 ssid[IEEE80211_MAX_SSID_LEN];
434	u8 ssid_len;
435	bool wmm, uapsd;
436	bool need_beacon;
437	bool synced;
438	bool timeout_started;
439	bool s1g;
440
441	unsigned int assoc_link_id;
442
443	u8 fils_nonces[2 * FILS_NONCE_LEN];
444	u8 fils_kek[FILS_MAX_KEK_LEN];
445	size_t fils_kek_len;
446
447	size_t ie_len;
448	u8 *ie_pos; /* used to fill ie[] with link[].elems */
449	u8 ie[];
450	};
451
452	struct ieee80211_sta_tx_tspec {
453	/* timestamp of the first packet in the time slice */
454	unsigned long time_slice_start;
455
456	u32 admitted_time; /* in usecs, unlike over the air */
457	u8 tsid;
458	s8 up; /* signed to be able to invalidate with -1 during teardown */
459
460	/* consumed TX time in microseconds in the time slice */
461	u32 consumed_tx_time;
462	enum {
463	TX_TSPEC_ACTION_NONE = 0,
464	TX_TSPEC_ACTION_DOWNGRADE,
465	TX_TSPEC_ACTION_STOP_DOWNGRADE,
466	} action;
467	bool downgraded;
468	};
469
470	/* Advertised TID-to-link mapping info */
471	struct ieee80211_adv_ttlm_info {
472	/* time in TUs at which the new mapping is established, or 0 if there is
473	* no planned advertised TID-to-link mapping
474	*/
475	u16 switch_time;
476	u32 duration; /* duration of the planned T2L map in TUs */
477	u16 map; /* map of usable links for all TIDs */
478	bool active; /* whether the advertised mapping is active or not */
479	};
480
481	DECLARE_EWMA(beacon_signal, 4, 4)
482
483	struct ieee80211_if_managed {
484	struct timer_list timer;
485	struct timer_list conn_mon_timer;
486	struct timer_list bcn_mon_timer;
487	struct wiphy_work monitor_work;
488	struct wiphy_work beacon_connection_loss_work;
489	struct wiphy_work csa_connection_drop_work;
490
491	unsigned long beacon_timeout;
492	unsigned long probe_timeout;
493	int probe_send_count;
494	bool nullfunc_failed;
495	u8 connection_loss:1,
496	driver_disconnect:1,
497	reconnect:1,
498	associated:1;
499
500	struct ieee80211_mgd_auth_data *auth_data;
501	struct ieee80211_mgd_assoc_data *assoc_data;
502
503	bool powersave; /* powersave requested for this iface */
504	bool broken_ap; /* AP is broken -- turn off powersave */
505
506	unsigned int flags;
507
508	bool status_acked;
509	bool status_received;
510	__le16 status_fc;
511
512	enum {
513	IEEE80211_MFP_DISABLED,
514	IEEE80211_MFP_OPTIONAL,
515	IEEE80211_MFP_REQUIRED
516	} mfp; /* management frame protection */
517
518	/*
519	* Bitmask of enabled u-apsd queues,
520	* IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
521	* to take effect.
522	*/
523	unsigned int uapsd_queues;
524
525	/*
526	* Maximum number of buffered frames AP can deliver during a
527	* service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
528	* Needs a new association to take effect.
529	*/
530	unsigned int uapsd_max_sp_len;
531
532	u8 use_4addr;
533
534	/*
535	* State variables for keeping track of RSSI of the AP currently
536	* connected to and informing driver when RSSI has gone
537	* below/above a certain threshold.
538	*/
539	int rssi_min_thold, rssi_max_thold;
540
541	struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
542	struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
543	struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
544	struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
545	struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
546	struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
547
548	/* TDLS support */
549	u8 tdls_peer[ETH_ALEN] __aligned(2);
550	struct wiphy_delayed_work tdls_peer_del_work;
551	struct sk_buff *orig_teardown_skb; /* The original teardown skb */
552	struct sk_buff *teardown_skb; /* A copy to send through the AP */
553	spinlock_t teardown_lock; /* To lock changing teardown_skb */
554	bool tdls_wider_bw_prohibited;
555
556	/* WMM-AC TSPEC support */
557	struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
558	/* Use a separate work struct so that we can do something here
559	* while the sdata->work is flushing the queues, for example.
560	* otherwise, in scenarios where we hardly get any traffic out
561	* on the BE queue, but there's a lot of VO traffic, we might
562	* get stuck in a downgraded situation and flush takes forever.
563	*/
564	struct wiphy_delayed_work tx_tspec_wk;
565
566	/* Information elements from the last transmitted (Re)Association
567	* Request frame.
568	*/
569	u8 *assoc_req_ies;
570	size_t assoc_req_ies_len;
571
572	struct wiphy_delayed_work ml_reconf_work;
573	u16 removed_links;
574
575	/* TID-to-link mapping support */
576	struct wiphy_delayed_work ttlm_work;
577	struct ieee80211_adv_ttlm_info ttlm_info;
578	};
579
580	struct ieee80211_if_ibss {
581	struct timer_list timer;
582	struct wiphy_work csa_connection_drop_work;
583
584	unsigned long last_scan_completed;
585
586	u32 basic_rates;
587
588	bool fixed_bssid;
589	bool fixed_channel;
590	bool privacy;
591
592	bool control_port;
593	bool userspace_handles_dfs;
594
595	u8 bssid[ETH_ALEN] __aligned(2);
596	u8 ssid[IEEE80211_MAX_SSID_LEN];
597	u8 ssid_len, ie_len;
598	u8 *ie;
599	struct cfg80211_chan_def chandef;
600
601	unsigned long ibss_join_req;
602	/* probe response/beacon for IBSS */
603	struct beacon_data __rcu *presp;
604
605	struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
606	struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
607
608	spinlock_t incomplete_lock;
609	struct list_head incomplete_stations;
610
611	enum {
612	IEEE80211_IBSS_MLME_SEARCH,
613	IEEE80211_IBSS_MLME_JOINED,
614	} state;
615	};
616
617	/**
618	* struct ieee80211_if_ocb - OCB mode state
619	*
620	* @housekeeping_timer: timer for periodic invocation of a housekeeping task
621	* @wrkq_flags: OCB deferred task action
622	* @incomplete_lock: delayed STA insertion lock
623	* @incomplete_stations: list of STAs waiting for delayed insertion
624	* @joined: indication if the interface is connected to an OCB network
625	*/
626	struct ieee80211_if_ocb {
627	struct timer_list housekeeping_timer;
628	unsigned long wrkq_flags;
629
630	spinlock_t incomplete_lock;
631	struct list_head incomplete_stations;
632
633	bool joined;
634	};
635
636	/**
637	* struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
638	*
639	* these declarations define the interface, which enables
640	* vendor-specific mesh synchronization
641	*
642	* @rx_bcn_presp: beacon/probe response was received
643	* @adjust_tsf: TSF adjustment method
644	*/
645	struct ieee80211_mesh_sync_ops {
646	void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
647	struct ieee80211_mgmt *mgmt, unsigned int len,
648	const struct ieee80211_meshconf_ie *mesh_cfg,
649	struct ieee80211_rx_status *rx_status);
650
651	/* should be called with beacon_data under RCU read lock */
652	void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
653	struct beacon_data *beacon);
654	/* add other framework functions here */
655	};
656
657	struct mesh_csa_settings {
658	struct rcu_head rcu_head;
659	struct cfg80211_csa_settings settings;
660	};
661
662	/**
663	* struct mesh_table
664	*
665	* @known_gates: list of known mesh gates and their mpaths by the station. The
666	* gate's mpath may or may not be resolved and active.
667	* @gates_lock: protects updates to known_gates
668	* @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
669	* @walk_head: linked list containing all mesh_path objects
670	* @walk_lock: lock protecting walk_head
671	* @entries: number of entries in the table
672	*/
673	struct mesh_table {
674	struct hlist_head known_gates;
675	spinlock_t gates_lock;
676	struct rhashtable rhead;
677	struct hlist_head walk_head;
678	spinlock_t walk_lock;
679	atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
680	};
681
682	/**
683	* struct mesh_tx_cache - mesh fast xmit header cache
684	*
685	* @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key
686	* @walk_head: linked list containing all ieee80211_mesh_fast_tx objects
687	* @walk_lock: lock protecting walk_head and rht
688	*/
689	struct mesh_tx_cache {
690	struct rhashtable rht;
691	struct hlist_head walk_head;
692	spinlock_t walk_lock;
693	};
694
695	struct ieee80211_if_mesh {
696	struct timer_list housekeeping_timer;
697	struct timer_list mesh_path_timer;
698	struct timer_list mesh_path_root_timer;
699
700	unsigned long wrkq_flags;
701	unsigned long mbss_changed[64 / BITS_PER_LONG];
702
703	bool userspace_handles_dfs;
704
705	u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
706	size_t mesh_id_len;
707	/* Active Path Selection Protocol Identifier */
708	u8 mesh_pp_id;
709	/* Active Path Selection Metric Identifier */
710	u8 mesh_pm_id;
711	/* Congestion Control Mode Identifier */
712	u8 mesh_cc_id;
713	/* Synchronization Protocol Identifier */
714	u8 mesh_sp_id;
715	/* Authentication Protocol Identifier */
716	u8 mesh_auth_id;
717	/* Local mesh Sequence Number */
718	u32 sn;
719	/* Last used PREQ ID */
720	u32 preq_id;
721	atomic_t mpaths;
722	/* Timestamp of last SN update */
723	unsigned long last_sn_update;
724	/* Time when it's ok to send next PERR */
725	unsigned long next_perr;
726	/* Timestamp of last PREQ sent */
727	unsigned long last_preq;
728	struct mesh_rmc *rmc;
729	spinlock_t mesh_preq_queue_lock;
730	struct mesh_preq_queue preq_queue;
731	int preq_queue_len;
732	struct mesh_stats mshstats;
733	struct mesh_config mshcfg;
734	atomic_t estab_plinks;
735	atomic_t mesh_seqnum;
736	bool accepting_plinks;
737	int num_gates;
738	struct beacon_data __rcu *beacon;
739	const u8 *ie;
740	u8 ie_len;
741	enum {
742	IEEE80211_MESH_SEC_NONE = 0x0,
743	IEEE80211_MESH_SEC_AUTHED = 0x1,
744	IEEE80211_MESH_SEC_SECURED = 0x2,
745	} security;
746	bool user_mpm;
747	/* Extensible Synchronization Framework */
748	const struct ieee80211_mesh_sync_ops *sync_ops;
749	s64 sync_offset_clockdrift_max;
750	spinlock_t sync_offset_lock;
751	/* mesh power save */
752	enum nl80211_mesh_power_mode nonpeer_pm;
753	int ps_peers_light_sleep;
754	int ps_peers_deep_sleep;
755	struct ps_data ps;
756	/* Channel Switching Support */
757	struct mesh_csa_settings __rcu *csa;
758	enum {
759	IEEE80211_MESH_CSA_ROLE_NONE,
760	IEEE80211_MESH_CSA_ROLE_INIT,
761	IEEE80211_MESH_CSA_ROLE_REPEATER,
762	} csa_role;
763	u8 chsw_ttl;
764	u16 pre_value;
765
766	/* offset from skb->data while building IE */
767	int meshconf_offset;
768
769	struct mesh_table mesh_paths;
770	struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
771	int mesh_paths_generation;
772	int mpp_paths_generation;
773	struct mesh_tx_cache tx_cache;
774	};
775
776	#ifdef CONFIG_MAC80211_MESH
777	#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
778	do { (msh)->mshstats.name++; } while (0)
779	#else
780	#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
781	do { } while (0)
782	#endif
783
784	/**
785	* enum ieee80211_sub_if_data_flags - virtual interface flags
786	*
787	* @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
788	* @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
789	* associated stations and deliver multicast frames both
790	* back to wireless media and to the local net stack.
791	* @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
792	* @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
793	* @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
794	* recovery
795	*/
796	enum ieee80211_sub_if_data_flags {
797	IEEE80211_SDATA_ALLMULTI = BIT(0),
798	IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
799	IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
800	IEEE80211_SDATA_IN_DRIVER = BIT(5),
801	IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
802	};
803
804	/**
805	* enum ieee80211_sdata_state_bits - virtual interface state bits
806	* @SDATA_STATE_RUNNING: virtual interface is up & running; this
807	* mirrors netif_running() but is separate for interface type
808	* change handling while the interface is up
809	* @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
810	* mode, so queues are stopped
811	* @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
812	* to offchannel, reset when offchannel returns
813	*/
814	enum ieee80211_sdata_state_bits {
815	SDATA_STATE_RUNNING,
816	SDATA_STATE_OFFCHANNEL,
817	SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
818	};
819
820	/**
821	* enum ieee80211_chanctx_mode - channel context configuration mode
822	*
823	* @IEEE80211_CHANCTX_SHARED: channel context may be used by
824	* multiple interfaces
825	* @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
826	* only by a single interface. This can be used for example for
827	* non-fixed channel IBSS.
828	*/
829	enum ieee80211_chanctx_mode {
830	IEEE80211_CHANCTX_SHARED,
831	IEEE80211_CHANCTX_EXCLUSIVE
832	};
833
834	/**
835	* enum ieee80211_chanctx_replace_state - channel context replacement state
836	*
837	* This is used for channel context in-place reservations that require channel
838	* context switch/swap.
839	*
840	* @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
841	* @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
842	* by a (not yet registered) channel context pointed by %replace_ctx.
843	* @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
844	* replaces an existing channel context pointed to by %replace_ctx.
845	*/
846	enum ieee80211_chanctx_replace_state {
847	IEEE80211_CHANCTX_REPLACE_NONE,
848	IEEE80211_CHANCTX_WILL_BE_REPLACED,
849	IEEE80211_CHANCTX_REPLACES_OTHER,
850	};
851
852	struct ieee80211_chanctx {
853	struct list_head list;
854	struct rcu_head rcu_head;
855
856	struct list_head assigned_links;
857	struct list_head reserved_links;
858
859	enum ieee80211_chanctx_replace_state replace_state;
860	struct ieee80211_chanctx *replace_ctx;
861
862	enum ieee80211_chanctx_mode mode;
863	bool driver_present;
864
865	struct ieee80211_chanctx_conf conf;
866	};
867
868	struct mac80211_qos_map {
869	struct cfg80211_qos_map qos_map;
870	struct rcu_head rcu_head;
871	};
872
873	enum txq_info_flags {
874	IEEE80211_TXQ_STOP,
875	IEEE80211_TXQ_AMPDU,
876	IEEE80211_TXQ_NO_AMSDU,
877	IEEE80211_TXQ_DIRTY,
878	};
879
880	/**
881	* struct txq_info - per tid queue
882	*
883	* @tin: contains packets split into multiple flows
884	* @def_cvars: codel vars for the @tin's default_flow
885	* @cstats: code statistics for this queue
886	* @frags: used to keep fragments created after dequeue
887	* @schedule_order: used with ieee80211_local->active_txqs
888	* @schedule_round: counter to prevent infinite loops on TXQ scheduling
889	* @flags: TXQ flags from &enum txq_info_flags
890	* @txq: the driver visible part
891	*/
892	struct txq_info {
893	struct fq_tin tin;
894	struct codel_vars def_cvars;
895	struct codel_stats cstats;
896
897	u16 schedule_round;
898	struct list_head schedule_order;
899
900	struct sk_buff_head frags;
901
902	unsigned long flags;
903
904	/* keep last! */
905	struct ieee80211_txq txq;
906	};
907
908	struct ieee80211_if_mntr {
909	u32 flags;
910	u8 mu_follow_addr[ETH_ALEN] __aligned(2);
911
912	struct list_head list;
913	};
914
915	/**
916	* struct ieee80211_if_nan - NAN state
917	*
918	* @conf: current NAN configuration
919	* @func_lock: lock for @func_inst_ids
920	* @function_inst_ids: a bitmap of available instance_id's
921	*/
922	struct ieee80211_if_nan {
923	struct cfg80211_nan_conf conf;
924
925	/* protects function_inst_ids */
926	spinlock_t func_lock;
927	struct idr function_inst_ids;
928	};
929
930	struct ieee80211_link_data_managed {
931	u8 bssid[ETH_ALEN] __aligned(2);
932
933	u8 dtim_period;
934	enum ieee80211_smps_mode req_smps, /* requested smps mode */
935	driver_smps_mode; /* smps mode request */
936
937	ieee80211_conn_flags_t conn_flags;
938
939	s16 p2p_noa_index;
940
941	bool tdls_chan_switch_prohibited;
942
943	bool have_beacon;
944	bool tracking_signal_avg;
945	bool disable_wmm_tracking;
946	bool operating_11g_mode;
947
948	bool csa_waiting_bcn;
949	bool csa_ignored_same_chan;
950	struct wiphy_delayed_work chswitch_work;
951
952	struct wiphy_work request_smps_work;
953	/* used to reconfigure hardware SM PS */
954	struct wiphy_work recalc_smps;
955
956	bool beacon_crc_valid;
957	u32 beacon_crc;
958	struct ewma_beacon_signal ave_beacon_signal;
959	int last_ave_beacon_signal;
960
961	/*
962	* Number of Beacon frames used in ave_beacon_signal. This can be used
963	* to avoid generating less reliable cqm events that would be based
964	* only on couple of received frames.
965	*/
966	unsigned int count_beacon_signal;
967
968	/* Number of times beacon loss was invoked. */
969	unsigned int beacon_loss_count;
970
971	/*
972	* Last Beacon frame signal strength average (ave_beacon_signal / 16)
973	* that triggered a cqm event. 0 indicates that no event has been
974	* generated for the current association.
975	*/
976	int last_cqm_event_signal;
977
978	int wmm_last_param_set;
979	int mu_edca_last_param_set;
980
981	u8 bss_param_ch_cnt;
982
983	struct cfg80211_bss *bss;
984	};
985
986	struct ieee80211_link_data_ap {
987	struct beacon_data __rcu *beacon;
988	struct probe_resp __rcu *probe_resp;
989	struct fils_discovery_data __rcu *fils_discovery;
990	struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
991
992	/* to be used after channel switch. */
993	struct cfg80211_beacon_data *next_beacon;
994	};
995
996	struct ieee80211_link_data {
997	struct ieee80211_sub_if_data *sdata;
998	unsigned int link_id;
999
1000	struct list_head assigned_chanctx_list; /* protected by wiphy mutex */
1001	struct list_head reserved_chanctx_list; /* protected by wiphy mutex */
1002
1003	/* multicast keys only */
1004	struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
1005	NUM_DEFAULT_MGMT_KEYS +
1006	NUM_DEFAULT_BEACON_KEYS];
1007	struct ieee80211_key __rcu *default_multicast_key;
1008	struct ieee80211_key __rcu *default_mgmt_key;
1009	struct ieee80211_key __rcu *default_beacon_key;
1010
1011	struct wiphy_work csa_finalize_work;
1012	bool csa_block_tx;
1013
1014	bool operating_11g_mode;
1015
1016	struct cfg80211_chan_def csa_chandef;
1017
1018	struct wiphy_work color_change_finalize_work;
1019	struct delayed_work color_collision_detect_work;
1020	u64 color_bitmap;
1021
1022	/* context reservation -- protected with wiphy mutex */
1023	struct ieee80211_chanctx *reserved_chanctx;
1024	struct cfg80211_chan_def reserved_chandef;
1025	bool reserved_radar_required;
1026	bool reserved_ready;
1027
1028	u8 needed_rx_chains;
1029	enum ieee80211_smps_mode smps_mode;
1030
1031	int user_power_level; /* in dBm */
1032	int ap_power_level; /* in dBm */
1033
1034	bool radar_required;
1035	struct wiphy_delayed_work dfs_cac_timer_work;
1036
1037	union {
1038	struct ieee80211_link_data_managed mgd;
1039	struct ieee80211_link_data_ap ap;
1040	} u;
1041
1042	struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
1043
1044	struct ieee80211_bss_conf *conf;
1045
1046	#ifdef CONFIG_MAC80211_DEBUGFS
1047	struct dentry *debugfs_dir;
1048	#endif
1049	};
1050
1051	struct ieee80211_sub_if_data {
1052	struct list_head list;
1053
1054	struct wireless_dev wdev;
1055
1056	/* keys */
1057	struct list_head key_list;
1058
1059	/* count for keys needing tailroom space allocation */
1060	int crypto_tx_tailroom_needed_cnt;
1061	int crypto_tx_tailroom_pending_dec;
1062	struct wiphy_delayed_work dec_tailroom_needed_wk;
1063
1064	struct net_device *dev;
1065	struct ieee80211_local *local;
1066
1067	unsigned int flags;
1068
1069	unsigned long state;
1070
1071	char name[IFNAMSIZ];
1072
1073	struct ieee80211_fragment_cache frags;
1074
1075	/* TID bitmap for NoAck policy */
1076	u16 noack_map;
1077
1078	/* bit field of ACM bits (BIT(802.1D tag)) */
1079	u8 wmm_acm;
1080
1081	struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
1082	struct ieee80211_key __rcu *default_unicast_key;
1083
1084	u16 sequence_number;
1085	u16 mld_mcast_seq;
1086	__be16 control_port_protocol;
1087	bool control_port_no_encrypt;
1088	bool control_port_no_preauth;
1089	bool control_port_over_nl80211;
1090
1091	atomic_t num_tx_queued;
1092	struct mac80211_qos_map __rcu *qos_map;
1093
1094	struct wiphy_work work;
1095	struct sk_buff_head skb_queue;
1096	struct sk_buff_head status_queue;
1097
1098	/*
1099	* AP this belongs to: self in AP mode and
1100	* corresponding AP in VLAN mode, NULL for
1101	* all others (might be needed later in IBSS)
1102	*/
1103	struct ieee80211_if_ap *bss;
1104
1105	/* bitmap of allowed (non-MCS) rate indexes for rate control */
1106	u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1107
1108	bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1109	u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1110
1111	bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1112	u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1113
1114	/* Beacon frame (non-MCS) rate (as a bitmap) */
1115	u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1116	bool beacon_rate_set;
1117
1118	union {
1119	struct ieee80211_if_ap ap;
1120	struct ieee80211_if_vlan vlan;
1121	struct ieee80211_if_managed mgd;
1122	struct ieee80211_if_ibss ibss;
1123	struct ieee80211_if_mesh mesh;
1124	struct ieee80211_if_ocb ocb;
1125	struct ieee80211_if_mntr mntr;
1126	struct ieee80211_if_nan nan;
1127	} u;
1128
1129	struct ieee80211_link_data deflink;
1130	struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
1131
1132	/* for ieee80211_set_active_links_async() */
1133	struct wiphy_work activate_links_work;
1134	u16 desired_active_links;
1135
1136	#ifdef CONFIG_MAC80211_DEBUGFS
1137	struct {
1138	struct dentry *subdir_stations;
1139	struct dentry *default_unicast_key;
1140	struct dentry *default_multicast_key;
1141	struct dentry *default_mgmt_key;
1142	struct dentry *default_beacon_key;
1143	} debugfs;
1144	#endif
1145
1146	/* must be last, dynamically sized area in this! */
1147	struct ieee80211_vif vif;
1148	};
1149
1150	static inline
1151	struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1152	{
1153	return container_of(p, struct ieee80211_sub_if_data, vif);
1154	}
1155
1156	#define sdata_dereference(p, sdata) \
1157	wiphy_dereference(sdata->local->hw.wiphy, p)
1158
1159	static inline int
1160	ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
1161	struct cfg80211_rnr_elems *rnr_elems,
1162	u8 i)
1163	{
1164	int len = 0;
1165
1166	if (!elems || !elems->cnt || i > elems->cnt)
1167	return 0;
1168
1169	if (i < elems->cnt) {
1170	len = elems->elem[i].len;
1171	if (rnr_elems) {
1172	len += rnr_elems->elem[i].len;
1173	for (i = elems->cnt; i < rnr_elems->cnt; i++)
1174	len += rnr_elems->elem[i].len;
1175	}
1176	return len;
1177	}
1178
1179	/* i == elems->cnt, calculate total length of all MBSSID elements */
1180	for (i = 0; i < elems->cnt; i++)
1181	len += elems->elem[i].len;
1182
1183	if (rnr_elems) {
1184	for (i = 0; i < rnr_elems->cnt; i++)
1185	len += rnr_elems->elem[i].len;
1186	}
1187
1188	return len;
1189	}
1190
1191	enum {
1192	IEEE80211_RX_MSG = 1,
1193	IEEE80211_TX_STATUS_MSG = 2,
1194	};
1195
1196	enum queue_stop_reason {
1197	IEEE80211_QUEUE_STOP_REASON_DRIVER,
1198	IEEE80211_QUEUE_STOP_REASON_PS,
1199	IEEE80211_QUEUE_STOP_REASON_CSA,
1200	IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1201	IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1202	IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1203	IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1204	IEEE80211_QUEUE_STOP_REASON_FLUSH,
1205	IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1206	IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1207	IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1208
1209	IEEE80211_QUEUE_STOP_REASONS,
1210	};
1211
1212	#ifdef CONFIG_MAC80211_LEDS
1213	struct tpt_led_trigger {
1214	char name[32];
1215	const struct ieee80211_tpt_blink *blink_table;
1216	unsigned int blink_table_len;
1217	struct timer_list timer;
1218	struct ieee80211_local *local;
1219	unsigned long prev_traffic;
1220	unsigned long tx_bytes, rx_bytes;
1221	unsigned int active, want;
1222	bool running;
1223	};
1224	#endif
1225
1226	/**
1227	* enum mac80211_scan_flags - currently active scan mode
1228	*
1229	* @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1230	* well be on the operating channel
1231	* @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1232	* determine if we are on the operating channel or not
1233	* @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1234	* channel. This should not interrupt normal traffic.
1235	* @SCAN_COMPLETED: Set for our scan work function when the driver reported
1236	* that the scan completed.
1237	* @SCAN_ABORTED: Set for our scan work function when the driver reported
1238	* a scan complete for an aborted scan.
1239	* @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1240	* cancelled.
1241	* @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1242	* and could send a probe request after receiving a beacon.
1243	* @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1244	*/
1245	enum mac80211_scan_flags {
1246	SCAN_SW_SCANNING,
1247	SCAN_HW_SCANNING,
1248	SCAN_ONCHANNEL_SCANNING,
1249	SCAN_COMPLETED,
1250	SCAN_ABORTED,
1251	SCAN_HW_CANCELLED,
1252	SCAN_BEACON_WAIT,
1253	SCAN_BEACON_DONE,
1254	};
1255
1256	/**
1257	* enum mac80211_scan_state - scan state machine states
1258	*
1259	* @SCAN_DECISION: Main entry point to the scan state machine, this state
1260	* determines if we should keep on scanning or switch back to the
1261	* operating channel
1262	* @SCAN_SET_CHANNEL: Set the next channel to be scanned
1263	* @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1264	* @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1265	* send out data
1266	* @SCAN_RESUME: Resume the scan and scan the next channel
1267	* @SCAN_ABORT: Abort the scan and go back to operating channel
1268	*/
1269	enum mac80211_scan_state {
1270	SCAN_DECISION,
1271	SCAN_SET_CHANNEL,
1272	SCAN_SEND_PROBE,
1273	SCAN_SUSPEND,
1274	SCAN_RESUME,
1275	SCAN_ABORT,
1276	};
1277
1278	DECLARE_STATIC_KEY_FALSE(aql_disable);
1279
1280	struct ieee80211_local {
1281	/* embed the driver visible part.
1282	* don't cast (use the static inlines below), but we keep
1283	* it first anyway so they become a no-op */
1284	struct ieee80211_hw hw;
1285
1286	struct fq fq;
1287	struct codel_vars *cvars;
1288	struct codel_params cparams;
1289
1290	/* protects active_txqs and txqi->schedule_order */
1291	spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1292	struct list_head active_txqs[IEEE80211_NUM_ACS];
1293	u16 schedule_round[IEEE80211_NUM_ACS];
1294
1295	/* serializes ieee80211_handle_wake_tx_queue */
1296	spinlock_t handle_wake_tx_queue_lock;
1297
1298	u16 airtime_flags;
1299	u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1300	u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1301	u32 aql_threshold;
1302	atomic_t aql_total_pending_airtime;
1303	atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
1304
1305	const struct ieee80211_ops *ops;
1306
1307	/*
1308	* private workqueue to mac80211. mac80211 makes this accessible
1309	* via ieee80211_queue_work()
1310	*/
1311	struct workqueue_struct *workqueue;
1312
1313	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1314	int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1315	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1316	spinlock_t queue_stop_reason_lock;
1317
1318	int open_count;
1319	int monitors, cooked_mntrs;
1320	/* number of interfaces with corresponding FIF_ flags */
1321	int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1322	fif_probe_req;
1323	bool probe_req_reg;
1324	bool rx_mcast_action_reg;
1325	unsigned int filter_flags; /* FIF_* */
1326
1327	bool wiphy_ciphers_allocated;
1328
1329	bool use_chanctx;
1330
1331	/* protects the aggregated multicast list and filter calls */
1332	spinlock_t filter_lock;
1333
1334	/* used for uploading changed mc list */
1335	struct wiphy_work reconfig_filter;
1336
1337	/* aggregated multicast list */
1338	struct netdev_hw_addr_list mc_list;
1339
1340	bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1341
1342	/*
1343	* suspended is true if we finished all the suspend _and_ we have
1344	* not yet come up from resume. This is to be used by mac80211
1345	* to ensure driver sanity during suspend and mac80211's own
1346	* sanity. It can eventually be used for WoW as well.
1347	*/
1348	bool suspended;
1349
1350	/* suspending is true during the whole suspend process */
1351	bool suspending;
1352
1353	/*
1354	* Resuming is true while suspended, but when we're reprogramming the
1355	* hardware -- at that time it's allowed to use ieee80211_queue_work()
1356	* again even though some other parts of the stack are still suspended
1357	* and we still drop received frames to avoid waking the stack.
1358	*/
1359	bool resuming;
1360
1361	/*
1362	* quiescing is true during the suspend process _only_ to
1363	* ease timer cancelling etc.
1364	*/
1365	bool quiescing;
1366
1367	/* device is started */
1368	bool started;
1369
1370	/* device is during a HW reconfig */
1371	bool in_reconfig;
1372
1373	/* reconfiguration failed ... suppress some warnings etc. */
1374	bool reconfig_failure;
1375
1376	/* wowlan is enabled -- don't reconfig on resume */
1377	bool wowlan;
1378
1379	struct wiphy_work radar_detected_work;
1380
1381	/* number of RX chains the hardware has */
1382	u8 rx_chains;
1383
1384	/* bitmap of which sbands were copied */
1385	u8 sband_allocated;
1386
1387	int tx_headroom; /* required headroom for hardware/radiotap */
1388
1389	/* Tasklet and skb queue to process calls from IRQ mode. All frames
1390	* added to skb_queue will be processed, but frames in
1391	* skb_queue_unreliable may be dropped if the total length of these
1392	* queues increases over the limit. */
1393	#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1394	struct tasklet_struct tasklet;
1395	struct sk_buff_head skb_queue;
1396	struct sk_buff_head skb_queue_unreliable;
1397
1398	spinlock_t rx_path_lock;
1399
1400	/* Station data */
1401	/*
1402	* The list, hash table and counter are protected
1403	* by the wiphy mutex, reads are done with RCU.
1404	*/
1405	spinlock_t tim_lock;
1406	unsigned long num_sta;
1407	struct list_head sta_list;
1408	struct rhltable sta_hash;
1409	struct rhltable link_sta_hash;
1410	struct timer_list sta_cleanup;
1411	int sta_generation;
1412
1413	struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1414	struct tasklet_struct tx_pending_tasklet;
1415	struct tasklet_struct wake_txqs_tasklet;
1416
1417	atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1418
1419	/* number of interfaces with allmulti RX */
1420	atomic_t iff_allmultis;
1421
1422	struct rate_control_ref *rate_ctrl;
1423
1424	struct arc4_ctx wep_tx_ctx;
1425	struct arc4_ctx wep_rx_ctx;
1426	u32 wep_iv;
1427
1428	/* see iface.c */
1429	struct list_head interfaces;
1430	struct list_head mon_list; /* only that are IFF_UP && !cooked */
1431	struct mutex iflist_mtx;
1432
1433	/* Scanning and BSS list */
1434	unsigned long scanning;
1435	struct cfg80211_ssid scan_ssid;
1436	struct cfg80211_scan_request *int_scan_req;
1437	struct cfg80211_scan_request __rcu *scan_req;
1438	struct ieee80211_scan_request *hw_scan_req;
1439	struct cfg80211_chan_def scan_chandef;
1440	enum nl80211_band hw_scan_band;
1441	int scan_channel_idx;
1442	int scan_ies_len;
1443	int hw_scan_ies_bufsize;
1444	struct cfg80211_scan_info scan_info;
1445
1446	struct wiphy_work sched_scan_stopped_work;
1447	struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1448	struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1449	u8 scan_addr[ETH_ALEN];
1450
1451	unsigned long leave_oper_channel_time;
1452	enum mac80211_scan_state next_scan_state;
1453	struct wiphy_delayed_work scan_work;
1454	struct ieee80211_sub_if_data __rcu *scan_sdata;
1455	/* For backward compatibility only -- do not use */
1456	struct cfg80211_chan_def _oper_chandef;
1457
1458	/* Temporary remain-on-channel for off-channel operations */
1459	struct ieee80211_channel *tmp_channel;
1460
1461	/* channel contexts */
1462	struct list_head chanctx_list;
1463
1464	#ifdef CONFIG_MAC80211_LEDS
1465	struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1466	struct led_trigger tpt_led;
1467	atomic_t tx_led_active, rx_led_active, assoc_led_active;
1468	atomic_t radio_led_active, tpt_led_active;
1469	struct tpt_led_trigger *tpt_led_trigger;
1470	#endif
1471
1472	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1473	/* SNMP counters */
1474	/* dot11CountersTable */
1475	u32 dot11TransmittedFragmentCount;
1476	u32 dot11MulticastTransmittedFrameCount;
1477	u32 dot11FailedCount;
1478	u32 dot11RetryCount;
1479	u32 dot11MultipleRetryCount;
1480	u32 dot11FrameDuplicateCount;
1481	u32 dot11ReceivedFragmentCount;
1482	u32 dot11MulticastReceivedFrameCount;
1483	u32 dot11TransmittedFrameCount;
1484
1485	/* TX/RX handler statistics */
1486	unsigned int tx_handlers_drop;
1487	unsigned int tx_handlers_queued;
1488	unsigned int tx_handlers_drop_wep;
1489	unsigned int tx_handlers_drop_not_assoc;
1490	unsigned int tx_handlers_drop_unauth_port;
1491	unsigned int rx_handlers_drop;
1492	unsigned int rx_handlers_queued;
1493	unsigned int rx_handlers_drop_nullfunc;
1494	unsigned int rx_handlers_drop_defrag;
1495	unsigned int tx_expand_skb_head;
1496	unsigned int tx_expand_skb_head_cloned;
1497	unsigned int rx_expand_skb_head_defrag;
1498	unsigned int rx_handlers_fragments;
1499	unsigned int tx_status_drop;
1500	#define I802_DEBUG_INC(c) (c)++
1501	#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1502	#define I802_DEBUG_INC(c) do { } while (0)
1503	#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1504
1505
1506	int total_ps_buffered; /* total number of all buffered unicast and
1507	* multicast packets for power saving stations
1508	*/
1509
1510	bool pspolling;
1511	/*
1512	* PS can only be enabled when we have exactly one managed
1513	* interface (and monitors) in PS, this then points there.
1514	*/
1515	struct ieee80211_sub_if_data *ps_sdata;
1516	struct wiphy_work dynamic_ps_enable_work;
1517	struct wiphy_work dynamic_ps_disable_work;
1518	struct timer_list dynamic_ps_timer;
1519	struct notifier_block ifa_notifier;
1520	struct notifier_block ifa6_notifier;
1521
1522	/*
1523	* The dynamic ps timeout configured from user space via WEXT -
1524	* this will override whatever chosen by mac80211 internally.
1525	*/
1526	int dynamic_ps_forced_timeout;
1527
1528	int user_power_level; /* in dBm, for all interfaces */
1529
1530	enum ieee80211_smps_mode smps_mode;
1531
1532	struct work_struct restart_work;
1533
1534	#ifdef CONFIG_MAC80211_DEBUGFS
1535	struct local_debugfsdentries {
1536	struct dentry *rcdir;
1537	struct dentry *keys;
1538	} debugfs;
1539	bool force_tx_status;
1540	#endif
1541
1542	/*
1543	* Remain-on-channel support
1544	*/
1545	struct wiphy_delayed_work roc_work;
1546	struct list_head roc_list;
1547	struct wiphy_work hw_roc_start, hw_roc_done;
1548	unsigned long hw_roc_start_time;
1549	u64 roc_cookie_counter;
1550
1551	struct idr ack_status_frames;
1552	spinlock_t ack_status_lock;
1553
1554	struct ieee80211_sub_if_data __rcu *p2p_sdata;
1555
1556	/* virtual monitor interface */
1557	struct ieee80211_sub_if_data __rcu *monitor_sdata;
1558	struct cfg80211_chan_def monitor_chandef;
1559
1560	/* extended capabilities provided by mac80211 */
1561	u8 ext_capa[8];
1562	};
1563
1564	static inline struct ieee80211_sub_if_data *
1565	IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1566	{
1567	return netdev_priv(dev);
1568	}
1569
1570	static inline struct ieee80211_sub_if_data *
1571	IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1572	{
1573	return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1574	}
1575
1576	static inline struct ieee80211_supported_band *
1577	ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1578	{
1579	struct ieee80211_local *local = sdata->local;
1580	struct ieee80211_chanctx_conf *chanctx_conf;
1581	enum nl80211_band band;
1582
1583	WARN_ON(ieee80211_vif_is_mld(&sdata->vif));
1584
1585	rcu_read_lock();
1586	chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1587
1588	if (!chanctx_conf) {
1589	rcu_read_unlock();
1590	return NULL;
1591	}
1592
1593	band = chanctx_conf->def.chan->band;
1594	rcu_read_unlock();
1595
1596	return local->hw.wiphy->bands[band];
1597	}
1598
1599	static inline struct ieee80211_supported_band *
1600	ieee80211_get_link_sband(struct ieee80211_link_data *link)
1601	{
1602	struct ieee80211_local *local = link->sdata->local;
1603	struct ieee80211_chanctx_conf *chanctx_conf;
1604	enum nl80211_band band;
1605
1606	rcu_read_lock();
1607	chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
1608	if (!chanctx_conf) {
1609	rcu_read_unlock();
1610	return NULL;
1611	}
1612
1613	band = chanctx_conf->def.chan->band;
1614	rcu_read_unlock();
1615
1616	return local->hw.wiphy->bands[band];
1617	}
1618
1619	/* this struct holds the value parsing from channel switch IE */
1620	struct ieee80211_csa_ie {
1621	struct cfg80211_chan_def chandef;
1622	u8 mode;
1623	u8 count;
1624	u8 ttl;
1625	u16 pre_value;
1626	u16 reason_code;
1627	u32 max_switch_time;
1628	};
1629
1630	/* Parsed Information Elements */
1631	struct ieee802_11_elems {
1632	const u8 *ie_start;
1633	size_t total_len;
1634	u32 crc;
1635
1636	/* pointers to IEs */
1637	const struct ieee80211_tdls_lnkie *lnk_id;
1638	const struct ieee80211_ch_switch_timing *ch_sw_timing;
1639	const u8 *ext_capab;
1640	const u8 *ssid;
1641	const u8 *supp_rates;
1642	const u8 *ds_params;
1643	const struct ieee80211_tim_ie *tim;
1644	const u8 *rsn;
1645	const u8 *rsnx;
1646	const u8 *erp_info;
1647	const u8 *ext_supp_rates;
1648	const u8 *wmm_info;
1649	const u8 *wmm_param;
1650	const struct ieee80211_ht_cap *ht_cap_elem;
1651	const struct ieee80211_ht_operation *ht_operation;
1652	const struct ieee80211_vht_cap *vht_cap_elem;
1653	const struct ieee80211_vht_operation *vht_operation;
1654	const struct ieee80211_meshconf_ie *mesh_config;
1655	const u8 *he_cap;
1656	const struct ieee80211_he_operation *he_operation;
1657	const struct ieee80211_he_spr *he_spr;
1658	const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1659	const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1660	const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
1661	const u8 *uora_element;
1662	const u8 *mesh_id;
1663	const u8 *peering;
1664	const __le16 *awake_window;
1665	const u8 *preq;
1666	const u8 *prep;
1667	const u8 *perr;
1668	const struct ieee80211_rann_ie *rann;
1669	const struct ieee80211_channel_sw_ie *ch_switch_ie;
1670	const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1671	const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1672	const u8 *max_channel_switch_time;
1673	const u8 *country_elem;
1674	const u8 *pwr_constr_elem;
1675	const u8 *cisco_dtpc_elem;
1676	const struct ieee80211_timeout_interval_ie *timeout_int;
1677	const u8 *opmode_notif;
1678	const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1679	struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1680	const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1681	const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1682	const struct ieee80211_bssid_index *bssid_index;
1683	u8 max_bssid_indicator;
1684	u8 dtim_count;
1685	u8 dtim_period;
1686	const struct ieee80211_addba_ext_ie *addba_ext_ie;
1687	const struct ieee80211_s1g_cap *s1g_capab;
1688	const struct ieee80211_s1g_oper_ie *s1g_oper;
1689	const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1690	const struct ieee80211_aid_response_ie *aid_resp;
1691	const struct ieee80211_eht_cap_elem *eht_cap;
1692	const struct ieee80211_eht_operation *eht_operation;
1693	const struct ieee80211_multi_link_elem *ml_basic;
1694	const struct ieee80211_multi_link_elem *ml_reconf;
1695	const struct ieee80211_bandwidth_indication *bandwidth_indication;
1696	const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT];
1697
1698	/* length of them, respectively */
1699	u8 ext_capab_len;
1700	u8 ssid_len;
1701	u8 supp_rates_len;
1702	u8 tim_len;
1703	u8 rsn_len;
1704	u8 rsnx_len;
1705	u8 ext_supp_rates_len;
1706	u8 wmm_info_len;
1707	u8 wmm_param_len;
1708	u8 he_cap_len;
1709	u8 mesh_id_len;
1710	u8 peering_len;
1711	u8 preq_len;
1712	u8 prep_len;
1713	u8 perr_len;
1714	u8 country_elem_len;
1715	u8 bssid_index_len;
1716	u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
1717	u8 tx_pwr_env_num;
1718	u8 eht_cap_len;
1719
1720	/* mult-link element can be de-fragmented and thus u8 is not sufficient */
1721	size_t ml_basic_len;
1722	size_t ml_reconf_len;
1723
1724	/* The basic Multi-Link element in the original IEs */
1725	const struct element *ml_basic_elem;
1726
1727	/* The reconfiguration Multi-Link element in the original IEs */
1728	const struct element *ml_reconf_elem;
1729
1730	u8 ttlm_num;
1731
1732	/*
1733	* store the per station profile pointer and length in case that the
1734	* parsing also handled Multi-Link element parsing for a specific link
1735	* ID.
1736	*/
1737	struct ieee80211_mle_per_sta_profile *prof;
1738	size_t sta_prof_len;
1739
1740	/* whether a parse error occurred while retrieving these elements */
1741	bool parse_error;
1742
1743	/*
1744	* scratch buffer that can be used for various element parsing related
1745	* tasks, e.g., element de-fragmentation etc.
1746	*/
1747	size_t scratch_len;
1748	u8 *scratch_pos;
1749	u8 scratch[] __counted_by(scratch_len);
1750	};
1751
1752	static inline struct ieee80211_local *hw_to_local(
1753	struct ieee80211_hw *hw)
1754	{
1755	return container_of(hw, struct ieee80211_local, hw);
1756	}
1757
1758	static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1759	{
1760	return container_of(txq, struct txq_info, txq);
1761	}
1762
1763	static inline bool txq_has_queue(struct ieee80211_txq *txq)
1764	{
1765	struct txq_info *txqi = to_txq_info(txq);
1766
1767	return !(skb_queue_empty(list: &txqi->frags) && !txqi->tin.backlog_packets);
1768	}
1769
1770	static inline bool
1771	ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1772	{
1773	WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1774	status->flag & RX_FLAG_MACTIME_END);
1775	return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1776	RX_FLAG_MACTIME_PLCP_START));
1777	}
1778
1779	void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1780	void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1781
1782	/* This function returns the number of multicast stations connected to this
1783	* interface. It returns -1 if that number is not tracked, that is for netdevs
1784	* not in AP or AP_VLAN mode or when using 4addr.
1785	*/
1786	static inline int
1787	ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1788	{
1789	if (sdata->vif.type == NL80211_IFTYPE_AP)
1790	return atomic_read(v: &sdata->u.ap.num_mcast_sta);
1791	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1792	return atomic_read(v: &sdata->u.vlan.num_mcast_sta);
1793	return -1;
1794	}
1795
1796	u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1797	struct ieee80211_rx_status *status,
1798	unsigned int mpdu_len,
1799	unsigned int mpdu_offset);
1800	int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1801	void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1802	void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1803	u64 changed);
1804	void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1805	u64 changed);
1806	void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1807	struct ieee80211_link_data *link,
1808	u64 changed);
1809	void ieee80211_configure_filter(struct ieee80211_local *local);
1810	u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1811
1812	u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1813	int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1814	u64 *cookie, gfp_t gfp);
1815
1816	void ieee80211_check_fast_rx(struct sta_info *sta);
1817	void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1818	void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1819	void ieee80211_clear_fast_rx(struct sta_info *sta);
1820
1821	bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
1822	const u8 *addr, int *out_link_id);
1823
1824	/* STA code */
1825	void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1826	int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1827	struct cfg80211_auth_request *req);
1828	int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1829	struct cfg80211_assoc_request *req);
1830	int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1831	struct cfg80211_deauth_request *req);
1832	int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1833	struct cfg80211_disassoc_request *req);
1834	void ieee80211_send_pspoll(struct ieee80211_local *local,
1835	struct ieee80211_sub_if_data *sdata);
1836	void ieee80211_recalc_ps(struct ieee80211_local *local);
1837	void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1838	void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1839	void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1840	struct sk_buff *skb);
1841	void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1842	struct sk_buff *skb);
1843	void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1844	void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1845	void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1846	void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1847	__le16 fc, bool acked);
1848	void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1849	void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1850	void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1851	void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1852	u8 reason, bool tx);
1853	void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
1854	void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
1855	void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link);
1856
1857	/* IBSS code */
1858	void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1859	void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1860	void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1861	const u8 *bssid, const u8 *addr, u32 supp_rates);
1862	int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1863	struct cfg80211_ibss_params *params);
1864	int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1865	void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1866	void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1867	struct sk_buff *skb);
1868	int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1869	struct cfg80211_csa_settings *csa_settings,
1870	u64 *changed);
1871	int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata,
1872	u64 *changed);
1873	void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1874
1875	/* OCB code */
1876	void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1877	void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1878	const u8 *bssid, const u8 *addr, u32 supp_rates);
1879	void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1880	int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1881	struct ocb_setup *setup);
1882	int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1883
1884	/* mesh code */
1885	void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1886	void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1887	struct sk_buff *skb);
1888	int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1889	struct cfg80211_csa_settings *csa_settings,
1890	u64 *changed);
1891	int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
1892	u64 *changed);
1893
1894	/* scan/BSS handling */
1895	void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work);
1896	int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1897	const u8 *ssid, u8 ssid_len,
1898	struct ieee80211_channel **channels,
1899	unsigned int n_channels);
1900	int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1901	struct cfg80211_scan_request *req);
1902	void ieee80211_scan_cancel(struct ieee80211_local *local);
1903	void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1904	void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1905
1906	void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss,
1907	const struct cfg80211_bss_ies *ies, void *data);
1908
1909	void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1910	struct ieee80211_bss *
1911	ieee80211_bss_info_update(struct ieee80211_local *local,
1912	struct ieee80211_rx_status *rx_status,
1913	struct ieee80211_mgmt *mgmt,
1914	size_t len,
1915	struct ieee80211_channel *channel);
1916	void ieee80211_rx_bss_put(struct ieee80211_local *local,
1917	struct ieee80211_bss *bss);
1918
1919	/* scheduled scan handling */
1920	int
1921	__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1922	struct cfg80211_sched_scan_request *req);
1923	int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1924	struct cfg80211_sched_scan_request *req);
1925	int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1926	void ieee80211_sched_scan_end(struct ieee80211_local *local);
1927	void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy,
1928	struct wiphy_work *work);
1929
1930	/* off-channel/mgmt-tx */
1931	void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1932	void ieee80211_offchannel_return(struct ieee80211_local *local);
1933	void ieee80211_roc_setup(struct ieee80211_local *local);
1934	void ieee80211_start_next_roc(struct ieee80211_local *local);
1935	void ieee80211_roc_purge(struct ieee80211_local *local,
1936	struct ieee80211_sub_if_data *sdata);
1937	int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1938	struct ieee80211_channel *chan,
1939	unsigned int duration, u64 *cookie);
1940	int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1941	struct wireless_dev *wdev, u64 cookie);
1942	int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1943	struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1944	int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1945	struct wireless_dev *wdev, u64 cookie);
1946
1947	/* channel switch handling */
1948	void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work);
1949	int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1950	struct cfg80211_csa_settings *params);
1951
1952	/* color change handling */
1953	void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
1954	struct wiphy_work *work);
1955	void ieee80211_color_collision_detection_work(struct work_struct *work);
1956
1957	/* interface handling */
1958	#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1959	NETIF_F_HW_CSUM | NETIF_F_SG | \
1960	NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
1961	NETIF_F_HW_TC)
1962	#define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1963	#define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1964	MAC80211_SUPPORTED_FEATURES_RX)
1965
1966	int ieee80211_iface_init(void);
1967	void ieee80211_iface_exit(void);
1968	int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1969	unsigned char name_assign_type,
1970	struct wireless_dev **new_wdev, enum nl80211_iftype type,
1971	struct vif_params *params);
1972	int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1973	enum nl80211_iftype type);
1974	void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1975	void ieee80211_remove_interfaces(struct ieee80211_local *local);
1976	u32 ieee80211_idle_off(struct ieee80211_local *local);
1977	void ieee80211_recalc_idle(struct ieee80211_local *local);
1978	void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1979	const int offset);
1980	int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1981	void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1982	int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1983	void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1984
1985	bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1986	void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1987	bool update_bss);
1988	void ieee80211_recalc_offload(struct ieee80211_local *local);
1989
1990	static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1991	{
1992	return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1993	}
1994
1995	/* link handling */
1996	void ieee80211_link_setup(struct ieee80211_link_data *link);
1997	void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
1998	int link_id,
1999	struct ieee80211_link_data *link,
2000	struct ieee80211_bss_conf *link_conf);
2001	void ieee80211_link_stop(struct ieee80211_link_data *link);
2002	int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2003	u16 new_links, u16 dormant_links);
2004	static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata)
2005	{
2006	ieee80211_vif_set_links(sdata, new_links: 0, dormant_links: 0);
2007	}
2008
2009	/* tx handling */
2010	void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2011	void ieee80211_tx_pending(struct tasklet_struct *t);
2012	netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2013	struct net_device *dev);
2014	netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2015	struct net_device *dev);
2016	netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2017	struct net_device *dev);
2018	void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2019	struct net_device *dev,
2020	u32 info_flags,
2021	u32 ctrl_flags,
2022	u64 *cookie);
2023	void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
2024	struct sk_buff_head *skbs);
2025	struct sk_buff *
2026	ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2027	struct sk_buff *skb, u32 info_flags);
2028	void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2029	int retry_count, bool send_to_cooked,
2030	struct ieee80211_tx_status *status);
2031
2032	void ieee80211_check_fast_xmit(struct sta_info *sta);
2033	void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2034	void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2035	void ieee80211_clear_fast_xmit(struct sta_info *sta);
2036	int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2037	const u8 *buf, size_t len,
2038	const u8 *dest, __be16 proto, bool unencrypted,
2039	int link_id, u64 *cookie);
2040	int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2041	const u8 *buf, size_t len);
2042	void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
2043	struct sta_info *sta,
2044	struct ieee80211_fast_tx *fast_tx,
2045	struct sk_buff *skb, bool ampdu,
2046	const u8 *da, const u8 *sa);
2047	void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
2048	struct sta_info *sta, struct sk_buff *skb);
2049
2050	/* HT */
2051	void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2052	struct ieee80211_sta_ht_cap *ht_cap);
2053	bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2054	struct ieee80211_supported_band *sband,
2055	const struct ieee80211_ht_cap *ht_cap_ie,
2056	struct link_sta_info *link_sta);
2057	void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2058	const u8 *da, u16 tid,
2059	u16 initiator, u16 reason_code);
2060	int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2061	enum ieee80211_smps_mode smps, const u8 *da,
2062	const u8 *bssid, int link_id);
2063	bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
2064	enum ieee80211_smps_mode smps_mode_new);
2065
2066	void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2067	u16 initiator, u16 reason, bool stop);
2068	void __ieee80211_start_rx_ba_session(struct sta_info *sta,
2069	u8 dialog_token, u16 timeout,
2070	u16 start_seq_num, u16 ba_policy, u16 tid,
2071	u16 buf_size, bool tx, bool auto_seq,
2072	const struct ieee80211_addba_ext_ie *addbaext);
2073	void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2074	enum ieee80211_agg_stop_reason reason);
2075	void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2076	struct sta_info *sta,
2077	struct ieee80211_mgmt *mgmt, size_t len);
2078	void ieee80211_process_addba_resp(struct ieee80211_local *local,
2079	struct sta_info *sta,
2080	struct ieee80211_mgmt *mgmt,
2081	size_t len);
2082	void ieee80211_process_addba_request(struct ieee80211_local *local,
2083	struct sta_info *sta,
2084	struct ieee80211_mgmt *mgmt,
2085	size_t len);
2086
2087	int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2088	enum ieee80211_agg_stop_reason reason);
2089	void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2090	struct tid_ampdu_tx *tid_tx);
2091	void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2092	struct tid_ampdu_tx *tid_tx);
2093	void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work);
2094	void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2095	void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2096
2097	u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2098	enum nl80211_smps_mode
2099	ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2100
2101	/* VHT */
2102	void
2103	ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2104	struct ieee80211_supported_band *sband,
2105	const struct ieee80211_vht_cap *vht_cap_ie,
2106	const struct ieee80211_vht_cap *vht_cap_ie2,
2107	struct link_sta_info *link_sta);
2108	enum ieee80211_sta_rx_bandwidth
2109	ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta);
2110	enum ieee80211_sta_rx_bandwidth
2111	ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta);
2112	void ieee80211_sta_set_rx_nss(struct link_sta_info *link_sta);
2113	enum ieee80211_sta_rx_bandwidth
2114	ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2115	enum nl80211_chan_width
2116	ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
2117	void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2118	struct ieee80211_link_data *link,
2119	struct ieee80211_mgmt *mgmt);
2120	u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2121	struct link_sta_info *sta,
2122	u8 opmode, enum nl80211_band band);
2123	void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2124	struct link_sta_info *sta,
2125	u8 opmode, enum nl80211_band band);
2126	void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2127	struct ieee80211_sta_vht_cap *vht_cap);
2128	void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2129	u16 vht_mask[NL80211_VHT_NSS_MAX]);
2130	enum nl80211_chan_width
2131	ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
2132
2133	/* HE */
2134	void
2135	ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2136	struct ieee80211_supported_band *sband,
2137	const u8 *he_cap_ie, u8 he_cap_len,
2138	const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2139	struct link_sta_info *link_sta);
2140	void
2141	ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2142	const struct ieee80211_he_spr *he_spr_ie_elem);
2143
2144	void
2145	ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2146	const struct ieee80211_he_operation *he_op_ie_elem);
2147
2148	/* S1G */
2149	void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2150	bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2151	void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2152	struct sk_buff *skb);
2153	void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2154	struct sk_buff *skb);
2155
2156	/* Spectrum management */
2157	void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2158	struct ieee80211_mgmt *mgmt,
2159	size_t len);
2160	/**
2161	* ieee80211_parse_ch_switch_ie - parses channel switch IEs
2162	* @sdata: the sdata of the interface which has received the frame
2163	* @elems: parsed 802.11 elements received with the frame
2164	* @current_band: indicates the current band
2165	* @vht_cap_info: VHT capabilities of the transmitter
2166	* @conn_flags: contains information about own capabilities and restrictions
2167	* to decide which channel switch announcements can be accepted, using
2168	* flags from &enum ieee80211_conn_flags.
2169	* @bssid: the currently connected bssid (for reporting)
2170	* @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2171	* All of them will be filled with if success only.
2172	* Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2173	*/
2174	int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2175	struct ieee802_11_elems *elems,
2176	enum nl80211_band current_band,
2177	u32 vht_cap_info,
2178	ieee80211_conn_flags_t conn_flags, u8 *bssid,
2179	struct ieee80211_csa_ie *csa_ie);
2180
2181	/* Suspend/resume and hw reconfiguration */
2182	int ieee80211_reconfig(struct ieee80211_local *local);
2183	void ieee80211_stop_device(struct ieee80211_local *local);
2184
2185	int __ieee80211_suspend(struct ieee80211_hw *hw,
2186	struct cfg80211_wowlan *wowlan);
2187
2188	static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2189	{
2190	struct ieee80211_local *local = hw_to_local(hw);
2191
2192	WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2193	!test_bit(SCAN_COMPLETED, &local->scanning),
2194	"%s: resume with hardware scan still in progress\n",
2195	wiphy_name(hw->wiphy));
2196
2197	return ieee80211_reconfig(local: hw_to_local(hw));
2198	}
2199
2200	/* utility functions/constants */
2201	extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2202	int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2203	int rate, int erp, int short_preamble);
2204	void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2205	struct ieee80211_tx_queue_params *qparam,
2206	int ac);
2207	void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
2208	bool bss_notify, bool enable_qos);
2209	void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2210	struct sta_info *sta, struct sk_buff *skb);
2211
2212	void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2213	struct sk_buff *skb, int tid, int link_id,
2214	enum nl80211_band band);
2215
2216	/* sta_out needs to be checked for ERR_PTR() before using */
2217	int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2218	struct sk_buff *skb,
2219	struct sta_info **sta_out);
2220
2221	static inline void
2222	ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2223	struct sk_buff *skb, int tid,
2224	enum nl80211_band band)
2225	{
2226	rcu_read_lock();
2227	__ieee80211_tx_skb_tid_band(sdata, skb, tid, link_id: -1, band);
2228	rcu_read_unlock();
2229	}
2230
2231	void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2232	struct sk_buff *skb, int tid, int link_id);
2233
2234	static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2235	struct sk_buff *skb)
2236	{
2237	/* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2238	ieee80211_tx_skb_tid(sdata, skb, tid: 7, link_id: -1);
2239	}
2240
2241	/**
2242	* struct ieee80211_elems_parse_params - element parsing parameters
2243	* @start: pointer to the elements
2244	* @len: length of the elements
2245	* @action: %true if the elements came from an action frame
2246	* @filter: bitmap of element IDs to filter out while calculating
2247	* the element CRC
2248	* @crc: CRC starting value
2249	* @bss: the BSS to parse this as, for multi-BSSID cases this can
2250	* represent a non-transmitting BSS in which case the data
2251	* for that non-transmitting BSS is returned
2252	* @link_id: the link ID to parse elements for, if a STA profile
2253	* is present in the multi-link element, or -1 to ignore;
2254	* note that the code currently assumes parsing an association
2255	* (or re-association) response frame if this is given
2256	* @from_ap: frame is received from an AP (currently used only
2257	* for EHT capabilities parsing)
2258	*/
2259	struct ieee80211_elems_parse_params {
2260	const u8 *start;
2261	size_t len;
2262	bool action;
2263	u64 filter;
2264	u32 crc;
2265	struct cfg80211_bss *bss;
2266	int link_id;
2267	bool from_ap;
2268	};
2269
2270	struct ieee802_11_elems *
2271	ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
2272
2273	static inline struct ieee802_11_elems *
2274	ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2275	u64 filter, u32 crc,
2276	struct cfg80211_bss *bss)
2277	{
2278	struct ieee80211_elems_parse_params params = {
2279	.start = start,
2280	.len = len,
2281	.action = action,
2282	.filter = filter,
2283	.crc = crc,
2284	.bss = bss,
2285	.link_id = -1,
2286	};
2287
2288	return ieee802_11_parse_elems_full(params: &params);
2289	}
2290
2291	static inline struct ieee802_11_elems *
2292	ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2293	struct cfg80211_bss *bss)
2294	{
2295	return ieee802_11_parse_elems_crc(start, len, action, filter: 0, crc: 0, bss);
2296	}
2297
2298	extern const int ieee802_1d_to_ac[8];
2299
2300	static inline int ieee80211_ac_from_tid(int tid)
2301	{
2302	return ieee802_1d_to_ac[tid & 7];
2303	}
2304
2305	void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy,
2306	struct wiphy_work *work);
2307	void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy,
2308	struct wiphy_work *work);
2309	void ieee80211_dynamic_ps_timer(struct timer_list *t);
2310	void ieee80211_send_nullfunc(struct ieee80211_local *local,
2311	struct ieee80211_sub_if_data *sdata,
2312	bool powersave);
2313	void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2314	struct ieee80211_sub_if_data *sdata);
2315	void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2316	struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2317
2318	void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2319	unsigned long queues,
2320	enum queue_stop_reason reason,
2321	bool refcounted);
2322	void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2323	struct ieee80211_sub_if_data *sdata,
2324	enum queue_stop_reason reason);
2325	void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2326	struct ieee80211_sub_if_data *sdata,
2327	enum queue_stop_reason reason);
2328	void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2329	unsigned long queues,
2330	enum queue_stop_reason reason,
2331	bool refcounted);
2332	void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2333	enum queue_stop_reason reason,
2334	bool refcounted);
2335	void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2336	enum queue_stop_reason reason,
2337	bool refcounted);
2338	void ieee80211_add_pending_skb(struct ieee80211_local *local,
2339	struct sk_buff *skb);
2340	void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2341	struct sk_buff_head *skbs);
2342	void ieee80211_flush_queues(struct ieee80211_local *local,
2343	struct ieee80211_sub_if_data *sdata, bool drop);
2344	void __ieee80211_flush_queues(struct ieee80211_local *local,
2345	struct ieee80211_sub_if_data *sdata,
2346	unsigned int queues, bool drop);
2347
2348	static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2349	{
2350	/*
2351	* It's unsafe to try to do any work during reconfigure flow.
2352	* When the flow ends the work will be requeued.
2353	*/
2354	if (local->in_reconfig)
2355	return false;
2356
2357	/*
2358	* If quiescing is set, we are racing with __ieee80211_suspend.
2359	* __ieee80211_suspend flushes the workers after setting quiescing,
2360	* and we check quiescing / suspended before enqueing new workers.
2361	* We should abort the worker to avoid the races below.
2362	*/
2363	if (local->quiescing)
2364	return false;
2365
2366	/*
2367	* We might already be suspended if the following scenario occurs:
2368	* __ieee80211_suspend Control path
2369	*
2370	* if (local->quiescing)
2371	* return;
2372	* local->quiescing = true;
2373	* flush_workqueue();
2374	* queue_work(...);
2375	* local->suspended = true;
2376	* local->quiescing = false;
2377	* worker starts running...
2378	*/
2379	if (local->suspended)
2380	return false;
2381
2382	return true;
2383	}
2384
2385	int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2386	void ieee80211_txq_set_params(struct ieee80211_local *local);
2387	void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2388	void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2389	struct sta_info *sta,
2390	struct txq_info *txq, int tid);
2391	void ieee80211_txq_purge(struct ieee80211_local *local,
2392	struct txq_info *txqi);
2393	void ieee80211_purge_sta_txqs(struct sta_info *sta);
2394	void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2395	struct ieee80211_sub_if_data *sdata);
2396	void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2397	struct txq_info *txqi);
2398	void ieee80211_wake_txqs(struct tasklet_struct *t);
2399	void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2400	u16 transaction, u16 auth_alg, u16 status,
2401	const u8 *extra, size_t extra_len, const u8 *bssid,
2402	const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2403	u32 tx_flags);
2404	void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2405	const u8 *da, const u8 *bssid,
2406	u16 stype, u16 reason,
2407	bool send_frame, u8 *frame_buf);
2408	u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end);
2409
2410	enum {
2411	IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2412	IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2413	IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2414	};
2415
2416	int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2417	size_t buffer_len,
2418	struct ieee80211_scan_ies *ie_desc,
2419	const u8 *ie, size_t ie_len,
2420	u8 bands_used, u32 *rate_masks,
2421	struct cfg80211_chan_def *chandef,
2422	u32 flags);
2423	struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2424	const u8 *src, const u8 *dst,
2425	u32 ratemask,
2426	struct ieee80211_channel *chan,
2427	const u8 *ssid, size_t ssid_len,
2428	const u8 *ie, size_t ie_len,
2429	u32 flags);
2430	u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2431	struct ieee802_11_elems *elems,
2432	enum nl80211_band band, u32 *basic_rates);
2433	int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2434	struct ieee80211_link_data *link,
2435	enum ieee80211_smps_mode smps_mode);
2436	void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2437	struct ieee80211_link_data *link);
2438	void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2439	int link_id);
2440
2441	size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2442	u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2443	u16 cap);
2444	u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2445	const struct cfg80211_chan_def *chandef,
2446	u16 prot_mode, bool rifs_mode);
2447	void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2448	const struct cfg80211_chan_def *chandef);
2449	u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2450	u32 cap);
2451	u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2452	const struct cfg80211_chan_def *chandef);
2453	u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2454	u8 *ieee80211_ie_build_he_cap(ieee80211_conn_flags_t disable_flags, u8 *pos,
2455	const struct ieee80211_sta_he_cap *he_cap,
2456	u8 *end);
2457	void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2458	enum ieee80211_smps_mode smps_mode,
2459	struct sk_buff *skb);
2460	u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2461	u8 *ieee80211_ie_build_eht_oper(u8 *pos, struct cfg80211_chan_def *chandef,
2462	const struct ieee80211_sta_eht_cap *eht_cap);
2463	int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2464	const struct ieee80211_supported_band *sband,
2465	const u8 *srates, int srates_len, u32 *rates);
2466	int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2467	struct sk_buff *skb, bool need_basic,
2468	enum nl80211_band band);
2469	int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2470	struct sk_buff *skb, bool need_basic,
2471	enum nl80211_band band);
2472	u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2473	void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2474	struct ieee80211_sta_s1g_cap *caps,
2475	struct sk_buff *skb);
2476	void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2477	struct sk_buff *skb);
2478	u8 *ieee80211_ie_build_s1g_cap(u8 *pos, struct ieee80211_sta_s1g_cap *s1g_cap);
2479
2480	/* channel management */
2481	bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2482	struct cfg80211_chan_def *chandef);
2483	bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2484	const struct ieee80211_vht_operation *oper,
2485	const struct ieee80211_ht_operation *htop,
2486	struct cfg80211_chan_def *chandef);
2487	void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info,
2488	bool support_160, bool support_320,
2489	struct cfg80211_chan_def *chandef);
2490	bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2491	const struct ieee80211_he_operation *he_oper,
2492	const struct ieee80211_eht_operation *eht_oper,
2493	struct cfg80211_chan_def *chandef);
2494	bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2495	struct cfg80211_chan_def *chandef);
2496	ieee80211_conn_flags_t ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2497
2498	int __must_check
2499	ieee80211_link_use_channel(struct ieee80211_link_data *link,
2500	const struct cfg80211_chan_def *chandef,
2501	enum ieee80211_chanctx_mode mode);
2502	int __must_check
2503	ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2504	const struct cfg80211_chan_def *chandef,
2505	enum ieee80211_chanctx_mode mode,
2506	bool radar_required);
2507	int __must_check
2508	ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2509	int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2510
2511	int __must_check
2512	ieee80211_link_change_bandwidth(struct ieee80211_link_data *link,
2513	const struct cfg80211_chan_def *chandef,
2514	u64 *changed);
2515	void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2516	void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2517	void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2518	bool clear);
2519	int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2520	struct ieee80211_chanctx *ctx);
2521
2522	void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2523	struct ieee80211_chanctx *chanctx);
2524	void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2525	struct ieee80211_chanctx *ctx,
2526	struct ieee80211_link_data *rsvd_for);
2527	bool ieee80211_is_radar_required(struct ieee80211_local *local);
2528
2529	void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work);
2530	void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2531	void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy,
2532	struct wiphy_work *work);
2533	int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2534	struct cfg80211_csa_settings *csa_settings);
2535
2536	void ieee80211_recalc_dtim(struct ieee80211_local *local,
2537	struct ieee80211_sub_if_data *sdata);
2538	int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2539	const struct cfg80211_chan_def *chandef,
2540	enum ieee80211_chanctx_mode chanmode,
2541	u8 radar_detect);
2542	int ieee80211_max_num_channels(struct ieee80211_local *local);
2543	void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2544	struct ieee80211_chanctx *ctx);
2545
2546	/* TDLS */
2547	int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2548	const u8 *peer, int link_id,
2549	u8 action_code, u8 dialog_token, u16 status_code,
2550	u32 peer_capability, bool initiator,
2551	const u8 *extra_ies, size_t extra_ies_len);
2552	int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2553	const u8 *peer, enum nl80211_tdls_operation oper);
2554	void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk);
2555	int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2556	const u8 *addr, u8 oper_class,
2557	struct cfg80211_chan_def *chandef);
2558	void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2559	struct net_device *dev,
2560	const u8 *addr);
2561	void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2562	void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2563	const u8 *peer, u16 reason);
2564	void
2565	ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2566	struct sk_buff *skb);
2567
2568
2569	const char *ieee80211_get_reason_code_string(u16 reason_code);
2570	u16 ieee80211_encode_usf(int val);
2571	u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2572	enum nl80211_iftype type);
2573
2574	extern const struct ethtool_ops ieee80211_ethtool_ops;
2575
2576	u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2577	struct ieee80211_vif *vif,
2578	struct ieee80211_sta *pubsta,
2579	int len, bool ampdu);
2580	#ifdef CONFIG_MAC80211_NOINLINE
2581	#define debug_noinline noinline
2582	#else
2583	#define debug_noinline
2584	#endif
2585
2586	void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2587	void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2588
2589	u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2590	u8 *ieee80211_ie_build_eht_cap(u8 *pos,
2591	const struct ieee80211_sta_he_cap *he_cap,
2592	const struct ieee80211_sta_eht_cap *eht_cap,
2593	u8 *end,
2594	bool for_ap);
2595
2596	void
2597	ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2598	struct ieee80211_supported_band *sband,
2599	const u8 *he_cap_ie, u8 he_cap_len,
2600	const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2601	u8 eht_cap_len,
2602	struct link_sta_info *link_sta);
2603	#endif /* IEEE80211_I_H */
2604