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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) 2018-2021 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 <net/ieee80211_radiotap.h>
29#include <net/cfg80211.h>
30#include <net/mac80211.h>
31#include <net/fq.h>
32#include "key.h"
33#include "sta_info.h"
34#include "debug.h"
35
36extern const struct cfg80211_ops mac80211_config_ops;
37
38struct ieee80211_local;
39
40/* Maximum number of broadcast/multicast frames to buffer when some of the
41 * associated stations are using power saving. */
42#define AP_MAX_BC_BUFFER 128
43
44/* Maximum number of frames buffered to all STAs, including multicast frames.
45 * Note: increasing this limit increases the potential memory requirement. Each
46 * frame can be up to about 2 kB long. */
47#define TOTAL_MAX_TX_BUFFER 512
48
49/* Required encryption head and tailroom */
50#define IEEE80211_ENCRYPT_HEADROOM 8
51#define IEEE80211_ENCRYPT_TAILROOM 18
52
53/* power level hasn't been configured (or set to automatic) */
54#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
55
56/*
57 * Some APs experience problems when working with U-APSD. Decreasing the
58 * probability of that happening by using legacy mode for all ACs but VO isn't
59 * enough.
60 *
61 * Cisco 4410N originally forced us to enable VO by default only because it
62 * treated non-VO ACs as legacy.
63 *
64 * However some APs (notably Netgear R7000) silently reclassify packets to
65 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
66 * clients would never see some frames (e.g. ARP responses) or would fetch them
67 * accidentally after a long time.
68 *
69 * It makes little sense to enable u-APSD queues by default because it needs
70 * userspace applications to be aware of it to actually take advantage of the
71 * possible additional powersavings. Implicitly depending on driver autotrigger
72 * frame support doesn't make much sense.
73 */
74#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
75
76#define IEEE80211_DEFAULT_MAX_SP_LEN \
77 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
78
79extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
80
81#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
82
83#define IEEE80211_MAX_NAN_INSTANCE_ID 255
84
85struct ieee80211_bss {
86 u32 device_ts_beacon, device_ts_presp;
87
88 bool wmm_used;
89 bool uapsd_supported;
90
91#define IEEE80211_MAX_SUPP_RATES 32
92 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
93 size_t supp_rates_len;
94 struct ieee80211_rate *beacon_rate;
95
96 u32 vht_cap_info;
97
98 /*
99 * During association, we save an ERP value from a probe response so
100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
102 * otherwise, you probably don't want to use them.
103 */
104 bool has_erp_value;
105 u8 erp_value;
106
107 /* Keep track of the corruption of the last beacon/probe response. */
108 u8 corrupt_data;
109
110 /* Keep track of what bits of information we have valid info for. */
111 u8 valid_data;
112};
113
114/**
115 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
116 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
117 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
118 *
119 * These are bss flags that are attached to a bss in the
120 * @corrupt_data field of &struct ieee80211_bss.
121 */
122enum ieee80211_bss_corrupt_data_flags {
123 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
124 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
125};
126
127/**
128 * enum ieee80211_valid_data_flags - BSS valid data flags
129 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
130 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
132 *
133 * These are bss flags that are attached to a bss in the
134 * @valid_data field of &struct ieee80211_bss. They show which parts
135 * of the data structure were received as a result of an un-corrupted
136 * beacon/probe response.
137 */
138enum ieee80211_bss_valid_data_flags {
139 IEEE80211_BSS_VALID_WMM = BIT(1),
140 IEEE80211_BSS_VALID_RATES = BIT(2),
141 IEEE80211_BSS_VALID_ERP = BIT(3)
142};
143
144typedef unsigned __bitwise ieee80211_tx_result;
145#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
146#define TX_DROP ((__force ieee80211_tx_result) 1u)
147#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
148
149#define IEEE80211_TX_UNICAST BIT(1)
150#define IEEE80211_TX_PS_BUFFERED BIT(2)
151
152struct ieee80211_tx_data {
153 struct sk_buff *skb;
154 struct sk_buff_head skbs;
155 struct ieee80211_local *local;
156 struct ieee80211_sub_if_data *sdata;
157 struct sta_info *sta;
158 struct ieee80211_key *key;
159 struct ieee80211_tx_rate rate;
160
161 unsigned int flags;
162};
163
164
165typedef unsigned __bitwise ieee80211_rx_result;
166#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
167#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
168#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
169#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
170
171/**
172 * enum ieee80211_packet_rx_flags - packet RX flags
173 * @IEEE80211_RX_AMSDU: a-MSDU packet
174 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
175 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
176 *
177 * These are per-frame flags that are attached to a frame in the
178 * @rx_flags field of &struct ieee80211_rx_status.
179 */
180enum ieee80211_packet_rx_flags {
181 IEEE80211_RX_AMSDU = BIT(3),
182 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
183 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
184};
185
186/**
187 * enum ieee80211_rx_flags - RX data flags
188 *
189 * @IEEE80211_RX_CMNTR: received on cooked monitor already
190 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
191 * to cfg80211_report_obss_beacon().
192 *
193 * These flags are used across handling multiple interfaces
194 * for a single frame.
195 */
196enum ieee80211_rx_flags {
197 IEEE80211_RX_CMNTR = BIT(0),
198 IEEE80211_RX_BEACON_REPORTED = BIT(1),
199};
200
201struct ieee80211_rx_data {
202 struct list_head *list;
203 struct sk_buff *skb;
204 struct ieee80211_local *local;
205 struct ieee80211_sub_if_data *sdata;
206 struct sta_info *sta;
207 struct ieee80211_key *key;
208
209 unsigned int flags;
210
211 /*
212 * Index into sequence numbers array, 0..16
213 * since the last (16) is used for non-QoS,
214 * will be 16 on non-QoS frames.
215 */
216 int seqno_idx;
217
218 /*
219 * Index into the security IV/PN arrays, 0..16
220 * since the last (16) is used for CCMP-encrypted
221 * management frames, will be set to 16 on mgmt
222 * frames and 0 on non-QoS frames.
223 */
224 int security_idx;
225
226 union {
227 struct {
228 u32 iv32;
229 u16 iv16;
230 } tkip;
231 struct {
232 u8 pn[IEEE80211_CCMP_PN_LEN];
233 } ccm_gcm;
234 };
235};
236
237struct ieee80211_csa_settings {
238 const u16 *counter_offsets_beacon;
239 const u16 *counter_offsets_presp;
240
241 int n_counter_offsets_beacon;
242 int n_counter_offsets_presp;
243
244 u8 count;
245};
246
247struct beacon_data {
248 u8 *head, *tail;
249 int head_len, tail_len;
250 struct ieee80211_meshconf_ie *meshconf;
251 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
252 u8 cntdwn_current_counter;
253 struct rcu_head rcu_head;
254};
255
256struct probe_resp {
257 struct rcu_head rcu_head;
258 int len;
259 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
260 u8 data[];
261};
262
263struct fils_discovery_data {
264 struct rcu_head rcu_head;
265 int len;
266 u8 data[];
267};
268
269struct unsol_bcast_probe_resp_data {
270 struct rcu_head rcu_head;
271 int len;
272 u8 data[];
273};
274
275struct ps_data {
276 /* yes, this looks ugly, but guarantees that we can later use
277 * bitmap_empty :)
278 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
279 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
280 __aligned(__alignof__(unsigned long));
281 struct sk_buff_head bc_buf;
282 atomic_t num_sta_ps; /* number of stations in PS mode */
283 int dtim_count;
284 bool dtim_bc_mc;
285};
286
287struct ieee80211_if_ap {
288 struct beacon_data __rcu *beacon;
289 struct probe_resp __rcu *probe_resp;
290 struct fils_discovery_data __rcu *fils_discovery;
291 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
292
293 /* to be used after channel switch. */
294 struct cfg80211_beacon_data *next_beacon;
295 struct list_head vlans; /* write-protected with RTNL and local->mtx */
296
297 struct ps_data ps;
298 atomic_t num_mcast_sta; /* number of stations receiving multicast */
299
300 bool multicast_to_unicast;
301};
302
303struct ieee80211_if_vlan {
304 struct list_head list; /* write-protected with RTNL and local->mtx */
305
306 /* used for all tx if the VLAN is configured to 4-addr mode */
307 struct sta_info __rcu *sta;
308 atomic_t num_mcast_sta; /* number of stations receiving multicast */
309};
310
311struct mesh_stats {
312 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
313 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
314 __u32 fwded_frames; /* Mesh total forwarded frames */
315 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
316 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
317 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
318};
319
320#define PREQ_Q_F_START 0x1
321#define PREQ_Q_F_REFRESH 0x2
322struct mesh_preq_queue {
323 struct list_head list;
324 u8 dst[ETH_ALEN];
325 u8 flags;
326};
327
328struct ieee80211_roc_work {
329 struct list_head list;
330
331 struct ieee80211_sub_if_data *sdata;
332
333 struct ieee80211_channel *chan;
334
335 bool started, abort, hw_begun, notified;
336 bool on_channel;
337
338 unsigned long start_time;
339
340 u32 duration, req_duration;
341 struct sk_buff *frame;
342 u64 cookie, mgmt_tx_cookie;
343 enum ieee80211_roc_type type;
344};
345
346/* flags used in struct ieee80211_if_managed.flags */
347enum ieee80211_sta_flags {
348 IEEE80211_STA_CONNECTION_POLL = BIT(1),
349 IEEE80211_STA_CONTROL_PORT = BIT(2),
350 IEEE80211_STA_DISABLE_HT = BIT(4),
351 IEEE80211_STA_MFP_ENABLED = BIT(6),
352 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
353 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
354 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
355 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
356 IEEE80211_STA_DISABLE_VHT = BIT(11),
357 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
358 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
359 IEEE80211_STA_DISABLE_WMM = BIT(14),
360 IEEE80211_STA_ENABLE_RRM = BIT(15),
361 IEEE80211_STA_DISABLE_HE = BIT(16),
362};
363
364struct ieee80211_mgd_auth_data {
365 struct cfg80211_bss *bss;
366 unsigned long timeout;
367 int tries;
368 u16 algorithm, expected_transaction;
369
370 u8 key[WLAN_KEY_LEN_WEP104];
371 u8 key_len, key_idx;
372 bool done;
373 bool peer_confirmed;
374 bool timeout_started;
375
376 u16 sae_trans, sae_status;
377 size_t data_len;
378 u8 data[];
379};
380
381struct ieee80211_mgd_assoc_data {
382 struct cfg80211_bss *bss;
383 const u8 *supp_rates;
384
385 unsigned long timeout;
386 int tries;
387
388 u16 capability;
389 u8 prev_bssid[ETH_ALEN];
390 u8 ssid[IEEE80211_MAX_SSID_LEN];
391 u8 ssid_len;
392 u8 supp_rates_len;
393 bool wmm, uapsd;
394 bool need_beacon;
395 bool synced;
396 bool timeout_started;
397
398 u8 ap_ht_param;
399
400 struct ieee80211_vht_cap ap_vht_cap;
401
402 u8 fils_nonces[2 * FILS_NONCE_LEN];
403 u8 fils_kek[FILS_MAX_KEK_LEN];
404 size_t fils_kek_len;
405
406 size_t ie_len;
407 u8 ie[];
408};
409
410struct ieee80211_sta_tx_tspec {
411 /* timestamp of the first packet in the time slice */
412 unsigned long time_slice_start;
413
414 u32 admitted_time; /* in usecs, unlike over the air */
415 u8 tsid;
416 s8 up; /* signed to be able to invalidate with -1 during teardown */
417
418 /* consumed TX time in microseconds in the time slice */
419 u32 consumed_tx_time;
420 enum {
421 TX_TSPEC_ACTION_NONE = 0,
422 TX_TSPEC_ACTION_DOWNGRADE,
423 TX_TSPEC_ACTION_STOP_DOWNGRADE,
424 } action;
425 bool downgraded;
426};
427
428DECLARE_EWMA(beacon_signal, 4, 4)
429
430struct ieee80211_if_managed {
431 struct timer_list timer;
432 struct timer_list conn_mon_timer;
433 struct timer_list bcn_mon_timer;
434 struct timer_list chswitch_timer;
435 struct work_struct monitor_work;
436 struct work_struct chswitch_work;
437 struct work_struct beacon_connection_loss_work;
438 struct work_struct csa_connection_drop_work;
439
440 unsigned long beacon_timeout;
441 unsigned long probe_timeout;
442 int probe_send_count;
443 bool nullfunc_failed;
444 u8 connection_loss:1,
445 driver_disconnect:1,
446 reconnect:1;
447
448 struct cfg80211_bss *associated;
449 struct ieee80211_mgd_auth_data *auth_data;
450 struct ieee80211_mgd_assoc_data *assoc_data;
451
452 u8 bssid[ETH_ALEN] __aligned(2);
453
454 bool powersave; /* powersave requested for this iface */
455 bool broken_ap; /* AP is broken -- turn off powersave */
456 bool have_beacon;
457 u8 dtim_period;
458 enum ieee80211_smps_mode req_smps, /* requested smps mode */
459 driver_smps_mode; /* smps mode request */
460
461 struct work_struct request_smps_work;
462
463 unsigned int flags;
464
465 bool csa_waiting_bcn;
466 bool csa_ignored_same_chan;
467
468 bool beacon_crc_valid;
469 u32 beacon_crc;
470
471 bool status_acked;
472 bool status_received;
473 __le16 status_fc;
474
475 enum {
476 IEEE80211_MFP_DISABLED,
477 IEEE80211_MFP_OPTIONAL,
478 IEEE80211_MFP_REQUIRED
479 } mfp; /* management frame protection */
480
481 /*
482 * Bitmask of enabled u-apsd queues,
483 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
484 * to take effect.
485 */
486 unsigned int uapsd_queues;
487
488 /*
489 * Maximum number of buffered frames AP can deliver during a
490 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
491 * Needs a new association to take effect.
492 */
493 unsigned int uapsd_max_sp_len;
494
495 int wmm_last_param_set;
496 int mu_edca_last_param_set;
497
498 u8 use_4addr;
499
500 s16 p2p_noa_index;
501
502 struct ewma_beacon_signal ave_beacon_signal;
503
504 /*
505 * Number of Beacon frames used in ave_beacon_signal. This can be used
506 * to avoid generating less reliable cqm events that would be based
507 * only on couple of received frames.
508 */
509 unsigned int count_beacon_signal;
510
511 /* Number of times beacon loss was invoked. */
512 unsigned int beacon_loss_count;
513
514 /*
515 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
516 * that triggered a cqm event. 0 indicates that no event has been
517 * generated for the current association.
518 */
519 int last_cqm_event_signal;
520
521 /*
522 * State variables for keeping track of RSSI of the AP currently
523 * connected to and informing driver when RSSI has gone
524 * below/above a certain threshold.
525 */
526 int rssi_min_thold, rssi_max_thold;
527 int last_ave_beacon_signal;
528
529 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
530 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
531 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
532 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
533 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
534 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
535
536 /* TDLS support */
537 u8 tdls_peer[ETH_ALEN] __aligned(2);
538 struct delayed_work tdls_peer_del_work;
539 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
540 struct sk_buff *teardown_skb; /* A copy to send through the AP */
541 spinlock_t teardown_lock; /* To lock changing teardown_skb */
542 bool tdls_chan_switch_prohibited;
543 bool tdls_wider_bw_prohibited;
544
545 /* WMM-AC TSPEC support */
546 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
547 /* Use a separate work struct so that we can do something here
548 * while the sdata->work is flushing the queues, for example.
549 * otherwise, in scenarios where we hardly get any traffic out
550 * on the BE queue, but there's a lot of VO traffic, we might
551 * get stuck in a downgraded situation and flush takes forever.
552 */
553 struct delayed_work tx_tspec_wk;
554
555 /* Information elements from the last transmitted (Re)Association
556 * Request frame.
557 */
558 u8 *assoc_req_ies;
559 size_t assoc_req_ies_len;
560};
561
562struct ieee80211_if_ibss {
563 struct timer_list timer;
564 struct work_struct csa_connection_drop_work;
565
566 unsigned long last_scan_completed;
567
568 u32 basic_rates;
569
570 bool fixed_bssid;
571 bool fixed_channel;
572 bool privacy;
573
574 bool control_port;
575 bool userspace_handles_dfs;
576
577 u8 bssid[ETH_ALEN] __aligned(2);
578 u8 ssid[IEEE80211_MAX_SSID_LEN];
579 u8 ssid_len, ie_len;
580 u8 *ie;
581 struct cfg80211_chan_def chandef;
582
583 unsigned long ibss_join_req;
584 /* probe response/beacon for IBSS */
585 struct beacon_data __rcu *presp;
586
587 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
588 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
589
590 spinlock_t incomplete_lock;
591 struct list_head incomplete_stations;
592
593 enum {
594 IEEE80211_IBSS_MLME_SEARCH,
595 IEEE80211_IBSS_MLME_JOINED,
596 } state;
597};
598
599/**
600 * struct ieee80211_if_ocb - OCB mode state
601 *
602 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
603 * @wrkq_flags: OCB deferred task action
604 * @incomplete_lock: delayed STA insertion lock
605 * @incomplete_stations: list of STAs waiting for delayed insertion
606 * @joined: indication if the interface is connected to an OCB network
607 */
608struct ieee80211_if_ocb {
609 struct timer_list housekeeping_timer;
610 unsigned long wrkq_flags;
611
612 spinlock_t incomplete_lock;
613 struct list_head incomplete_stations;
614
615 bool joined;
616};
617
618/**
619 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
620 *
621 * these declarations define the interface, which enables
622 * vendor-specific mesh synchronization
623 *
624 */
625struct ieee802_11_elems;
626struct ieee80211_mesh_sync_ops {
627 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
628 u16 stype,
629 struct ieee80211_mgmt *mgmt,
630 struct ieee802_11_elems *elems,
631 struct ieee80211_rx_status *rx_status);
632
633 /* should be called with beacon_data under RCU read lock */
634 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
635 struct beacon_data *beacon);
636 /* add other framework functions here */
637};
638
639struct mesh_csa_settings {
640 struct rcu_head rcu_head;
641 struct cfg80211_csa_settings settings;
642};
643
644struct ieee80211_if_mesh {
645 struct timer_list housekeeping_timer;
646 struct timer_list mesh_path_timer;
647 struct timer_list mesh_path_root_timer;
648
649 unsigned long wrkq_flags;
650 unsigned long mbss_changed;
651
652 bool userspace_handles_dfs;
653
654 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
655 size_t mesh_id_len;
656 /* Active Path Selection Protocol Identifier */
657 u8 mesh_pp_id;
658 /* Active Path Selection Metric Identifier */
659 u8 mesh_pm_id;
660 /* Congestion Control Mode Identifier */
661 u8 mesh_cc_id;
662 /* Synchronization Protocol Identifier */
663 u8 mesh_sp_id;
664 /* Authentication Protocol Identifier */
665 u8 mesh_auth_id;
666 /* Local mesh Sequence Number */
667 u32 sn;
668 /* Last used PREQ ID */
669 u32 preq_id;
670 atomic_t mpaths;
671 /* Timestamp of last SN update */
672 unsigned long last_sn_update;
673 /* Time when it's ok to send next PERR */
674 unsigned long next_perr;
675 /* Timestamp of last PREQ sent */
676 unsigned long last_preq;
677 struct mesh_rmc *rmc;
678 spinlock_t mesh_preq_queue_lock;
679 struct mesh_preq_queue preq_queue;
680 int preq_queue_len;
681 struct mesh_stats mshstats;
682 struct mesh_config mshcfg;
683 atomic_t estab_plinks;
684 u32 mesh_seqnum;
685 bool accepting_plinks;
686 int num_gates;
687 struct beacon_data __rcu *beacon;
688 const u8 *ie;
689 u8 ie_len;
690 enum {
691 IEEE80211_MESH_SEC_NONE = 0x0,
692 IEEE80211_MESH_SEC_AUTHED = 0x1,
693 IEEE80211_MESH_SEC_SECURED = 0x2,
694 } security;
695 bool user_mpm;
696 /* Extensible Synchronization Framework */
697 const struct ieee80211_mesh_sync_ops *sync_ops;
698 s64 sync_offset_clockdrift_max;
699 spinlock_t sync_offset_lock;
700 /* mesh power save */
701 enum nl80211_mesh_power_mode nonpeer_pm;
702 int ps_peers_light_sleep;
703 int ps_peers_deep_sleep;
704 struct ps_data ps;
705 /* Channel Switching Support */
706 struct mesh_csa_settings __rcu *csa;
707 enum {
708 IEEE80211_MESH_CSA_ROLE_NONE,
709 IEEE80211_MESH_CSA_ROLE_INIT,
710 IEEE80211_MESH_CSA_ROLE_REPEATER,
711 } csa_role;
712 u8 chsw_ttl;
713 u16 pre_value;
714
715 /* offset from skb->data while building IE */
716 int meshconf_offset;
717
718 struct mesh_table *mesh_paths;
719 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
720 int mesh_paths_generation;
721 int mpp_paths_generation;
722};
723
724#ifdef CONFIG_MAC80211_MESH
725#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
726 do { (msh)->mshstats.name++; } while (0)
727#else
728#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
729 do { } while (0)
730#endif
731
732/**
733 * enum ieee80211_sub_if_data_flags - virtual interface flags
734 *
735 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
736 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
737 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
738 * associated stations and deliver multicast frames both
739 * back to wireless media and to the local net stack.
740 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
741 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
742 */
743enum ieee80211_sub_if_data_flags {
744 IEEE80211_SDATA_ALLMULTI = BIT(0),
745 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
746 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
747 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
748 IEEE80211_SDATA_IN_DRIVER = BIT(5),
749};
750
751/**
752 * enum ieee80211_sdata_state_bits - virtual interface state bits
753 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
754 * mirrors netif_running() but is separate for interface type
755 * change handling while the interface is up
756 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
757 * mode, so queues are stopped
758 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
759 * to offchannel, reset when offchannel returns
760 */
761enum ieee80211_sdata_state_bits {
762 SDATA_STATE_RUNNING,
763 SDATA_STATE_OFFCHANNEL,
764 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
765};
766
767/**
768 * enum ieee80211_chanctx_mode - channel context configuration mode
769 *
770 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
771 * multiple interfaces
772 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
773 * only by a single interface. This can be used for example for
774 * non-fixed channel IBSS.
775 */
776enum ieee80211_chanctx_mode {
777 IEEE80211_CHANCTX_SHARED,
778 IEEE80211_CHANCTX_EXCLUSIVE
779};
780
781/**
782 * enum ieee80211_chanctx_replace_state - channel context replacement state
783 *
784 * This is used for channel context in-place reservations that require channel
785 * context switch/swap.
786 *
787 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
788 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
789 * by a (not yet registered) channel context pointed by %replace_ctx.
790 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
791 * replaces an existing channel context pointed to by %replace_ctx.
792 */
793enum ieee80211_chanctx_replace_state {
794 IEEE80211_CHANCTX_REPLACE_NONE,
795 IEEE80211_CHANCTX_WILL_BE_REPLACED,
796 IEEE80211_CHANCTX_REPLACES_OTHER,
797};
798
799struct ieee80211_chanctx {
800 struct list_head list;
801 struct rcu_head rcu_head;
802
803 struct list_head assigned_vifs;
804 struct list_head reserved_vifs;
805
806 enum ieee80211_chanctx_replace_state replace_state;
807 struct ieee80211_chanctx *replace_ctx;
808
809 enum ieee80211_chanctx_mode mode;
810 bool driver_present;
811
812 struct ieee80211_chanctx_conf conf;
813};
814
815struct mac80211_qos_map {
816 struct cfg80211_qos_map qos_map;
817 struct rcu_head rcu_head;
818};
819
820enum txq_info_flags {
821 IEEE80211_TXQ_STOP,
822 IEEE80211_TXQ_AMPDU,
823 IEEE80211_TXQ_NO_AMSDU,
824 IEEE80211_TXQ_STOP_NETIF_TX,
825};
826
827/**
828 * struct txq_info - per tid queue
829 *
830 * @tin: contains packets split into multiple flows
831 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
832 * a fq_flow which is already owned by a different tin
833 * @def_cvars: codel vars for @def_flow
834 * @schedule_order: used with ieee80211_local->active_txqs
835 * @frags: used to keep fragments created after dequeue
836 */
837struct txq_info {
838 struct fq_tin tin;
839 struct codel_vars def_cvars;
840 struct codel_stats cstats;
841 struct rb_node schedule_order;
842
843 struct sk_buff_head frags;
844 unsigned long flags;
845
846 /* keep last! */
847 struct ieee80211_txq txq;
848};
849
850struct ieee80211_if_mntr {
851 u32 flags;
852 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
853
854 struct list_head list;
855};
856
857/**
858 * struct ieee80211_if_nan - NAN state
859 *
860 * @conf: current NAN configuration
861 * @func_ids: a bitmap of available instance_id's
862 */
863struct ieee80211_if_nan {
864 struct cfg80211_nan_conf conf;
865
866 /* protects function_inst_ids */
867 spinlock_t func_lock;
868 struct idr function_inst_ids;
869};
870
871struct ieee80211_sub_if_data {
872 struct list_head list;
873
874 struct wireless_dev wdev;
875
876 /* keys */
877 struct list_head key_list;
878
879 /* count for keys needing tailroom space allocation */
880 int crypto_tx_tailroom_needed_cnt;
881 int crypto_tx_tailroom_pending_dec;
882 struct delayed_work dec_tailroom_needed_wk;
883
884 struct net_device *dev;
885 struct ieee80211_local *local;
886
887 unsigned int flags;
888
889 unsigned long state;
890
891 char name[IFNAMSIZ];
892
893 struct ieee80211_fragment_cache frags;
894
895 /* TID bitmap for NoAck policy */
896 u16 noack_map;
897
898 /* bit field of ACM bits (BIT(802.1D tag)) */
899 u8 wmm_acm;
900
901 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS +
902 NUM_DEFAULT_MGMT_KEYS +
903 NUM_DEFAULT_BEACON_KEYS];
904 struct ieee80211_key __rcu *default_unicast_key;
905 struct ieee80211_key __rcu *default_multicast_key;
906 struct ieee80211_key __rcu *default_mgmt_key;
907 struct ieee80211_key __rcu *default_beacon_key;
908
909 u16 sequence_number;
910 __be16 control_port_protocol;
911 bool control_port_no_encrypt;
912 bool control_port_no_preauth;
913 bool control_port_over_nl80211;
914 int encrypt_headroom;
915
916 atomic_t num_tx_queued;
917 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
918 struct mac80211_qos_map __rcu *qos_map;
919
920 struct airtime_info airtime[IEEE80211_NUM_ACS];
921
922 struct work_struct csa_finalize_work;
923 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
924 struct cfg80211_chan_def csa_chandef;
925
926 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
927 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
928
929 /* context reservation -- protected with chanctx_mtx */
930 struct ieee80211_chanctx *reserved_chanctx;
931 struct cfg80211_chan_def reserved_chandef;
932 bool reserved_radar_required;
933 bool reserved_ready;
934
935 /* used to reconfigure hardware SM PS */
936 struct work_struct recalc_smps;
937
938 struct work_struct work;
939 struct sk_buff_head skb_queue;
940
941 u8 needed_rx_chains;
942 enum ieee80211_smps_mode smps_mode;
943
944 int user_power_level; /* in dBm */
945 int ap_power_level; /* in dBm */
946
947 bool radar_required;
948 struct delayed_work dfs_cac_timer_work;
949
950 /*
951 * AP this belongs to: self in AP mode and
952 * corresponding AP in VLAN mode, NULL for
953 * all others (might be needed later in IBSS)
954 */
955 struct ieee80211_if_ap *bss;
956
957 /* bitmap of allowed (non-MCS) rate indexes for rate control */
958 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
959
960 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
961 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
962
963 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
964 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
965
966 /* Beacon frame (non-MCS) rate (as a bitmap) */
967 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
968 bool beacon_rate_set;
969
970 union {
971 struct ieee80211_if_ap ap;
972 struct ieee80211_if_vlan vlan;
973 struct ieee80211_if_managed mgd;
974 struct ieee80211_if_ibss ibss;
975 struct ieee80211_if_mesh mesh;
976 struct ieee80211_if_ocb ocb;
977 struct ieee80211_if_mntr mntr;
978 struct ieee80211_if_nan nan;
979 } u;
980
981#ifdef CONFIG_MAC80211_DEBUGFS
982 struct {
983 struct dentry *subdir_stations;
984 struct dentry *default_unicast_key;
985 struct dentry *default_multicast_key;
986 struct dentry *default_mgmt_key;
987 struct dentry *default_beacon_key;
988 } debugfs;
989#endif
990
991 /* must be last, dynamically sized area in this! */
992 struct ieee80211_vif vif;
993};
994
995static inline
996struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
997{
998 return container_of(p, struct ieee80211_sub_if_data, vif);
999}
1000
1001static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1002 __acquires(&sdata->wdev.mtx)
1003{
1004 mutex_lock(&sdata->wdev.mtx);
1005 __acquire(&sdata->wdev.mtx);
1006}
1007
1008static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1009 __releases(&sdata->wdev.mtx)
1010{
1011 mutex_unlock(&sdata->wdev.mtx);
1012 __release(&sdata->wdev.mtx);
1013}
1014
1015#define sdata_dereference(p, sdata) \
1016 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1017
1018static inline void
1019sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1020{
1021 lockdep_assert_held(&sdata->wdev.mtx);
1022}
1023
1024static inline int
1025ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1026{
1027 switch (chandef->width) {
1028 case NL80211_CHAN_WIDTH_5:
1029 return 2;
1030 case NL80211_CHAN_WIDTH_10:
1031 return 1;
1032 default:
1033 return 0;
1034 }
1035}
1036
1037static inline int
1038ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1039{
1040 struct ieee80211_chanctx_conf *chanctx_conf;
1041 int shift = 0;
1042
1043 rcu_read_lock();
1044 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1045 if (chanctx_conf)
1046 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1047 rcu_read_unlock();
1048
1049 return shift;
1050}
1051
1052enum {
1053 IEEE80211_RX_MSG = 1,
1054 IEEE80211_TX_STATUS_MSG = 2,
1055};
1056
1057enum queue_stop_reason {
1058 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1059 IEEE80211_QUEUE_STOP_REASON_PS,
1060 IEEE80211_QUEUE_STOP_REASON_CSA,
1061 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1062 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1063 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1064 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1065 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1066 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1067 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1068 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1069
1070 IEEE80211_QUEUE_STOP_REASONS,
1071};
1072
1073#ifdef CONFIG_MAC80211_LEDS
1074struct tpt_led_trigger {
1075 char name[32];
1076 const struct ieee80211_tpt_blink *blink_table;
1077 unsigned int blink_table_len;
1078 struct timer_list timer;
1079 struct ieee80211_local *local;
1080 unsigned long prev_traffic;
1081 unsigned long tx_bytes, rx_bytes;
1082 unsigned int active, want;
1083 bool running;
1084};
1085#endif
1086
1087/**
1088 * mac80211 scan flags - currently active scan mode
1089 *
1090 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1091 * well be on the operating channel
1092 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1093 * determine if we are on the operating channel or not
1094 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1095 * channel. This should not interrupt normal traffic.
1096 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1097 * that the scan completed.
1098 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1099 * a scan complete for an aborted scan.
1100 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1101 * cancelled.
1102 */
1103enum {
1104 SCAN_SW_SCANNING,
1105 SCAN_HW_SCANNING,
1106 SCAN_ONCHANNEL_SCANNING,
1107 SCAN_COMPLETED,
1108 SCAN_ABORTED,
1109 SCAN_HW_CANCELLED,
1110};
1111
1112/**
1113 * enum mac80211_scan_state - scan state machine states
1114 *
1115 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1116 * determines if we should keep on scanning or switch back to the
1117 * operating channel
1118 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1119 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1120 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1121 * send out data
1122 * @SCAN_RESUME: Resume the scan and scan the next channel
1123 * @SCAN_ABORT: Abort the scan and go back to operating channel
1124 */
1125enum mac80211_scan_state {
1126 SCAN_DECISION,
1127 SCAN_SET_CHANNEL,
1128 SCAN_SEND_PROBE,
1129 SCAN_SUSPEND,
1130 SCAN_RESUME,
1131 SCAN_ABORT,
1132};
1133
1134/**
1135 * struct airtime_sched_info - state used for airtime scheduling and AQL
1136 *
1137 * @lock: spinlock that protects all the fields in this struct
1138 * @active_txqs: rbtree of currently backlogged queues, sorted by virtual time
1139 * @schedule_pos: the current position maintained while a driver walks the tree
1140 * with ieee80211_next_txq()
1141 * @active_list: list of struct airtime_info structs that were active within
1142 * the last AIRTIME_ACTIVE_DURATION (100 ms), used to compute
1143 * weight_sum
1144 * @last_weight_update: used for rate limiting walking active_list
1145 * @last_schedule_time: tracks the last time a transmission was scheduled; used
1146 * for catching up v_t if no stations are eligible for
1147 * transmission.
1148 * @v_t: global virtual time; queues with v_t < this are eligible for
1149 * transmission
1150 * @weight_sum: total sum of all active stations used for dividing airtime
1151 * @weight_sum_reciprocal: reciprocal of weight_sum (to avoid divisions in fast
1152 * path - see comment above
1153 * IEEE80211_RECIPROCAL_DIVISOR_64)
1154 * @aql_txq_limit_low: AQL limit when total outstanding airtime
1155 * is < IEEE80211_AQL_THRESHOLD
1156 * @aql_txq_limit_high: AQL limit when total outstanding airtime
1157 * is > IEEE80211_AQL_THRESHOLD
1158 */
1159struct airtime_sched_info {
1160 spinlock_t lock;
1161 struct rb_root_cached active_txqs;
1162 struct rb_node *schedule_pos;
1163 struct list_head active_list;
1164 u64 last_weight_update;
1165 u64 last_schedule_activity;
1166 u64 v_t;
1167 u64 weight_sum;
1168 u64 weight_sum_reciprocal;
1169 u32 aql_txq_limit_low;
1170 u32 aql_txq_limit_high;
1171};
1172DECLARE_STATIC_KEY_FALSE(aql_disable);
1173
1174struct ieee80211_local {
1175 /* embed the driver visible part.
1176 * don't cast (use the static inlines below), but we keep
1177 * it first anyway so they become a no-op */
1178 struct ieee80211_hw hw;
1179
1180 struct fq fq;
1181 struct codel_vars *cvars;
1182 struct codel_params cparams;
1183
1184 /* protects active_txqs and txqi->schedule_order */
1185 struct airtime_sched_info airtime[IEEE80211_NUM_ACS];
1186 u16 airtime_flags;
1187 u32 aql_threshold;
1188 atomic_t aql_total_pending_airtime;
1189
1190 const struct ieee80211_ops *ops;
1191
1192 /*
1193 * private workqueue to mac80211. mac80211 makes this accessible
1194 * via ieee80211_queue_work()
1195 */
1196 struct workqueue_struct *workqueue;
1197
1198 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1199 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1200 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1201 spinlock_t queue_stop_reason_lock;
1202
1203 int open_count;
1204 int monitors, cooked_mntrs;
1205 /* number of interfaces with corresponding FIF_ flags */
1206 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1207 fif_probe_req;
1208 bool probe_req_reg;
1209 bool rx_mcast_action_reg;
1210 unsigned int filter_flags; /* FIF_* */
1211
1212 bool wiphy_ciphers_allocated;
1213
1214 bool use_chanctx;
1215
1216 /* protects the aggregated multicast list and filter calls */
1217 spinlock_t filter_lock;
1218
1219 /* used for uploading changed mc list */
1220 struct work_struct reconfig_filter;
1221
1222 /* aggregated multicast list */
1223 struct netdev_hw_addr_list mc_list;
1224
1225 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1226
1227 /*
1228 * suspended is true if we finished all the suspend _and_ we have
1229 * not yet come up from resume. This is to be used by mac80211
1230 * to ensure driver sanity during suspend and mac80211's own
1231 * sanity. It can eventually be used for WoW as well.
1232 */
1233 bool suspended;
1234
1235 /*
1236 * Resuming is true while suspended, but when we're reprogramming the
1237 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1238 * again even though some other parts of the stack are still suspended
1239 * and we still drop received frames to avoid waking the stack.
1240 */
1241 bool resuming;
1242
1243 /*
1244 * quiescing is true during the suspend process _only_ to
1245 * ease timer cancelling etc.
1246 */
1247 bool quiescing;
1248
1249 /* device is started */
1250 bool started;
1251
1252 /* device is during a HW reconfig */
1253 bool in_reconfig;
1254
1255 /* wowlan is enabled -- don't reconfig on resume */
1256 bool wowlan;
1257
1258 struct work_struct radar_detected_work;
1259
1260 /* number of RX chains the hardware has */
1261 u8 rx_chains;
1262
1263 /* bitmap of which sbands were copied */
1264 u8 sband_allocated;
1265
1266 int tx_headroom; /* required headroom for hardware/radiotap */
1267
1268 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1269 * added to skb_queue will be processed, but frames in
1270 * skb_queue_unreliable may be dropped if the total length of these
1271 * queues increases over the limit. */
1272#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1273 struct tasklet_struct tasklet;
1274 struct sk_buff_head skb_queue;
1275 struct sk_buff_head skb_queue_unreliable;
1276
1277 spinlock_t rx_path_lock;
1278
1279 /* Station data */
1280 /*
1281 * The mutex only protects the list, hash table and
1282 * counter, reads are done with RCU.
1283 */
1284 struct mutex sta_mtx;
1285 spinlock_t tim_lock;
1286 unsigned long num_sta;
1287 struct list_head sta_list;
1288 struct rhltable sta_hash;
1289 struct timer_list sta_cleanup;
1290 int sta_generation;
1291
1292 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1293 struct tasklet_struct tx_pending_tasklet;
1294 struct tasklet_struct wake_txqs_tasklet;
1295
1296 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1297
1298 /* number of interfaces with allmulti RX */
1299 atomic_t iff_allmultis;
1300
1301 struct rate_control_ref *rate_ctrl;
1302
1303 struct arc4_ctx wep_tx_ctx;
1304 struct arc4_ctx wep_rx_ctx;
1305 u32 wep_iv;
1306
1307 /* see iface.c */
1308 struct list_head interfaces;
1309 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1310 struct mutex iflist_mtx;
1311
1312 /*
1313 * Key mutex, protects sdata's key_list and sta_info's
1314 * key pointers and ptk_idx (write access, they're RCU.)
1315 */
1316 struct mutex key_mtx;
1317
1318 /* mutex for scan and work locking */
1319 struct mutex mtx;
1320
1321 /* Scanning and BSS list */
1322 unsigned long scanning;
1323 struct cfg80211_ssid scan_ssid;
1324 struct cfg80211_scan_request *int_scan_req;
1325 struct cfg80211_scan_request __rcu *scan_req;
1326 struct ieee80211_scan_request *hw_scan_req;
1327 struct cfg80211_chan_def scan_chandef;
1328 enum nl80211_band hw_scan_band;
1329 int scan_channel_idx;
1330 int scan_ies_len;
1331 int hw_scan_ies_bufsize;
1332 struct cfg80211_scan_info scan_info;
1333
1334 struct work_struct sched_scan_stopped_work;
1335 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1336 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1337 u8 scan_addr[ETH_ALEN];
1338
1339 unsigned long leave_oper_channel_time;
1340 enum mac80211_scan_state next_scan_state;
1341 struct delayed_work scan_work;
1342 struct ieee80211_sub_if_data __rcu *scan_sdata;
1343 /* For backward compatibility only -- do not use */
1344 struct cfg80211_chan_def _oper_chandef;
1345
1346 /* Temporary remain-on-channel for off-channel operations */
1347 struct ieee80211_channel *tmp_channel;
1348
1349 /* channel contexts */
1350 struct list_head chanctx_list;
1351 struct mutex chanctx_mtx;
1352
1353#ifdef CONFIG_MAC80211_LEDS
1354 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1355 struct led_trigger tpt_led;
1356 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1357 atomic_t radio_led_active, tpt_led_active;
1358 struct tpt_led_trigger *tpt_led_trigger;
1359#endif
1360
1361#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1362 /* SNMP counters */
1363 /* dot11CountersTable */
1364 u32 dot11TransmittedFragmentCount;
1365 u32 dot11MulticastTransmittedFrameCount;
1366 u32 dot11FailedCount;
1367 u32 dot11RetryCount;
1368 u32 dot11MultipleRetryCount;
1369 u32 dot11FrameDuplicateCount;
1370 u32 dot11ReceivedFragmentCount;
1371 u32 dot11MulticastReceivedFrameCount;
1372 u32 dot11TransmittedFrameCount;
1373
1374 /* TX/RX handler statistics */
1375 unsigned int tx_handlers_drop;
1376 unsigned int tx_handlers_queued;
1377 unsigned int tx_handlers_drop_wep;
1378 unsigned int tx_handlers_drop_not_assoc;
1379 unsigned int tx_handlers_drop_unauth_port;
1380 unsigned int rx_handlers_drop;
1381 unsigned int rx_handlers_queued;
1382 unsigned int rx_handlers_drop_nullfunc;
1383 unsigned int rx_handlers_drop_defrag;
1384 unsigned int tx_expand_skb_head;
1385 unsigned int tx_expand_skb_head_cloned;
1386 unsigned int rx_expand_skb_head_defrag;
1387 unsigned int rx_handlers_fragments;
1388 unsigned int tx_status_drop;
1389#define I802_DEBUG_INC(c) (c)++
1390#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1391#define I802_DEBUG_INC(c) do { } while (0)
1392#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1393
1394
1395 int total_ps_buffered; /* total number of all buffered unicast and
1396 * multicast packets for power saving stations
1397 */
1398
1399 bool pspolling;
1400 /*
1401 * PS can only be enabled when we have exactly one managed
1402 * interface (and monitors) in PS, this then points there.
1403 */
1404 struct ieee80211_sub_if_data *ps_sdata;
1405 struct work_struct dynamic_ps_enable_work;
1406 struct work_struct dynamic_ps_disable_work;
1407 struct timer_list dynamic_ps_timer;
1408 struct notifier_block ifa_notifier;
1409 struct notifier_block ifa6_notifier;
1410
1411 /*
1412 * The dynamic ps timeout configured from user space via WEXT -
1413 * this will override whatever chosen by mac80211 internally.
1414 */
1415 int dynamic_ps_forced_timeout;
1416
1417 int user_power_level; /* in dBm, for all interfaces */
1418
1419 enum ieee80211_smps_mode smps_mode;
1420
1421 struct work_struct restart_work;
1422
1423#ifdef CONFIG_MAC80211_DEBUGFS
1424 struct local_debugfsdentries {
1425 struct dentry *rcdir;
1426 struct dentry *keys;
1427 } debugfs;
1428 bool force_tx_status;
1429#endif
1430
1431 /*
1432 * Remain-on-channel support
1433 */
1434 struct delayed_work roc_work;
1435 struct list_head roc_list;
1436 struct work_struct hw_roc_start, hw_roc_done;
1437 unsigned long hw_roc_start_time;
1438 u64 roc_cookie_counter;
1439
1440 struct idr ack_status_frames;
1441 spinlock_t ack_status_lock;
1442
1443 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1444
1445 /* virtual monitor interface */
1446 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1447 struct cfg80211_chan_def monitor_chandef;
1448
1449 /* extended capabilities provided by mac80211 */
1450 u8 ext_capa[8];
1451};
1452
1453static inline struct ieee80211_sub_if_data *
1454IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1455{
1456 return netdev_priv(dev);
1457}
1458
1459static inline struct ieee80211_sub_if_data *
1460IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1461{
1462 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1463}
1464
1465static inline struct ieee80211_supported_band *
1466ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1467{
1468 struct ieee80211_local *local = sdata->local;
1469 struct ieee80211_chanctx_conf *chanctx_conf;
1470 enum nl80211_band band;
1471
1472 rcu_read_lock();
1473 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1474
1475 if (!chanctx_conf) {
1476 rcu_read_unlock();
1477 return NULL;
1478 }
1479
1480 band = chanctx_conf->def.chan->band;
1481 rcu_read_unlock();
1482
1483 return local->hw.wiphy->bands[band];
1484}
1485
1486/* this struct holds the value parsing from channel switch IE */
1487struct ieee80211_csa_ie {
1488 struct cfg80211_chan_def chandef;
1489 u8 mode;
1490 u8 count;
1491 u8 ttl;
1492 u16 pre_value;
1493 u16 reason_code;
1494 u32 max_switch_time;
1495};
1496
1497/* Parsed Information Elements */
1498struct ieee802_11_elems {
1499 const u8 *ie_start;
1500 size_t total_len;
1501
1502 /* pointers to IEs */
1503 const struct ieee80211_tdls_lnkie *lnk_id;
1504 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1505 const u8 *ext_capab;
1506 const u8 *ssid;
1507 const u8 *supp_rates;
1508 const u8 *ds_params;
1509 const struct ieee80211_tim_ie *tim;
1510 const u8 *challenge;
1511 const u8 *rsn;
1512 const u8 *rsnx;
1513 const u8 *erp_info;
1514 const u8 *ext_supp_rates;
1515 const u8 *wmm_info;
1516 const u8 *wmm_param;
1517 const struct ieee80211_ht_cap *ht_cap_elem;
1518 const struct ieee80211_ht_operation *ht_operation;
1519 const struct ieee80211_vht_cap *vht_cap_elem;
1520 const struct ieee80211_vht_operation *vht_operation;
1521 const struct ieee80211_meshconf_ie *mesh_config;
1522 const u8 *he_cap;
1523 const struct ieee80211_he_operation *he_operation;
1524 const struct ieee80211_he_spr *he_spr;
1525 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1526 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1527 const u8 *uora_element;
1528 const u8 *mesh_id;
1529 const u8 *peering;
1530 const __le16 *awake_window;
1531 const u8 *preq;
1532 const u8 *prep;
1533 const u8 *perr;
1534 const struct ieee80211_rann_ie *rann;
1535 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1536 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1537 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1538 const u8 *max_channel_switch_time;
1539 const u8 *country_elem;
1540 const u8 *pwr_constr_elem;
1541 const u8 *cisco_dtpc_elem;
1542 const struct ieee80211_timeout_interval_ie *timeout_int;
1543 const u8 *opmode_notif;
1544 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1545 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1546 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1547 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1548 const struct ieee80211_bssid_index *bssid_index;
1549 u8 max_bssid_indicator;
1550 u8 dtim_count;
1551 u8 dtim_period;
1552 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1553 const struct ieee80211_s1g_cap *s1g_capab;
1554 const struct ieee80211_s1g_oper_ie *s1g_oper;
1555 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1556 const struct ieee80211_aid_response_ie *aid_resp;
1557
1558 /* length of them, respectively */
1559 u8 ext_capab_len;
1560 u8 ssid_len;
1561 u8 supp_rates_len;
1562 u8 tim_len;
1563 u8 challenge_len;
1564 u8 rsn_len;
1565 u8 rsnx_len;
1566 u8 ext_supp_rates_len;
1567 u8 wmm_info_len;
1568 u8 wmm_param_len;
1569 u8 he_cap_len;
1570 u8 mesh_id_len;
1571 u8 peering_len;
1572 u8 preq_len;
1573 u8 prep_len;
1574 u8 perr_len;
1575 u8 country_elem_len;
1576 u8 bssid_index_len;
1577
1578 /* whether a parse error occurred while retrieving these elements */
1579 bool parse_error;
1580};
1581
1582static inline struct ieee80211_local *hw_to_local(
1583 struct ieee80211_hw *hw)
1584{
1585 return container_of(hw, struct ieee80211_local, hw);
1586}
1587
1588static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1589{
1590 return container_of(txq, struct txq_info, txq);
1591}
1592
1593static inline bool txq_has_queue(struct ieee80211_txq *txq)
1594{
1595 struct txq_info *txqi = to_txq_info(txq);
1596
1597 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1598}
1599
1600static inline struct airtime_info *to_airtime_info(struct ieee80211_txq *txq)
1601{
1602 struct ieee80211_sub_if_data *sdata;
1603 struct sta_info *sta;
1604
1605 if (txq->sta) {
1606 sta = container_of(txq->sta, struct sta_info, sta);
1607 return &sta->airtime[txq->ac];
1608 }
1609
1610 sdata = vif_to_sdata(txq->vif);
1611 return &sdata->airtime[txq->ac];
1612}
1613
1614/* To avoid divisions in the fast path, we keep pre-computed reciprocals for
1615 * airtime weight calculations. There are two different weights to keep track
1616 * of: The per-station weight and the sum of weights per phy.
1617 *
1618 * For the per-station weights (kept in airtime_info below), we use 32-bit
1619 * reciprocals with a devisor of 2^19. This lets us keep the multiplications and
1620 * divisions for the station weights as 32-bit operations at the cost of a bit
1621 * of rounding error for high weights; but the choice of divisor keeps rounding
1622 * errors <10% for weights <2^15, assuming no more than 8ms of airtime is
1623 * reported at a time.
1624 *
1625 * For the per-phy sum of weights the values can get higher, so we use 64-bit
1626 * operations for those with a 32-bit divisor, which should avoid any
1627 * significant rounding errors.
1628 */
1629#define IEEE80211_RECIPROCAL_DIVISOR_64 0x100000000ULL
1630#define IEEE80211_RECIPROCAL_SHIFT_64 32
1631#define IEEE80211_RECIPROCAL_DIVISOR_32 0x80000U
1632#define IEEE80211_RECIPROCAL_SHIFT_32 19
1633
1634static inline void airtime_weight_set(struct airtime_info *air_info, u16 weight)
1635{
1636 if (air_info->weight == weight)
1637 return;
1638
1639 air_info->weight = weight;
1640 if (weight) {
1641 air_info->weight_reciprocal =
1642 IEEE80211_RECIPROCAL_DIVISOR_32 / weight;
1643 } else {
1644 air_info->weight_reciprocal = 0;
1645 }
1646}
1647
1648static inline void airtime_weight_sum_set(struct airtime_sched_info *air_sched,
1649 int weight_sum)
1650{
1651 if (air_sched->weight_sum == weight_sum)
1652 return;
1653
1654 air_sched->weight_sum = weight_sum;
1655 if (air_sched->weight_sum) {
1656 air_sched->weight_sum_reciprocal = IEEE80211_RECIPROCAL_DIVISOR_64;
1657 do_div(air_sched->weight_sum_reciprocal, air_sched->weight_sum);
1658 } else {
1659 air_sched->weight_sum_reciprocal = 0;
1660 }
1661}
1662
1663/* A problem when trying to enforce airtime fairness is that we want to divide
1664 * the airtime between the currently *active* stations. However, basing this on
1665 * the instantaneous queue state of stations doesn't work, as queues tend to
1666 * oscillate very quickly between empty and occupied, leading to the scheduler
1667 * thinking only a single station is active when deciding whether to allow
1668 * transmission (and thus not throttling correctly).
1669 *
1670 * To fix this we use a timer-based notion of activity: a station is considered
1671 * active if it has been scheduled within the last 100 ms; we keep a separate
1672 * list of all the stations considered active in this manner, and lazily update
1673 * the total weight of active stations from this list (filtering the stations in
1674 * the list by their 'last active' time).
1675 *
1676 * We add one additional safeguard to guard against stations that manage to get
1677 * scheduled every 100 ms but don't transmit a lot of data, and thus don't use
1678 * up any airtime. Such stations would be able to get priority for an extended
1679 * period of time if they do start transmitting at full capacity again, and so
1680 * we add an explicit maximum for how far behind a station is allowed to fall in
1681 * the virtual airtime domain. This limit is set to a relatively high value of
1682 * 20 ms because the main mechanism for catching up idle stations is the active
1683 * state as described above; i.e., the hard limit should only be hit in
1684 * pathological cases.
1685 */
1686#define AIRTIME_ACTIVE_DURATION (100 * NSEC_PER_MSEC)
1687#define AIRTIME_MAX_BEHIND 20000 /* 20 ms */
1688
1689static inline bool airtime_is_active(struct airtime_info *air_info, u64 now)
1690{
1691 return air_info->last_scheduled >= now - AIRTIME_ACTIVE_DURATION;
1692}
1693
1694static inline void airtime_set_active(struct airtime_sched_info *air_sched,
1695 struct airtime_info *air_info, u64 now)
1696{
1697 air_info->last_scheduled = now;
1698 air_sched->last_schedule_activity = now;
1699 list_move_tail(&air_info->list, &air_sched->active_list);
1700}
1701
1702static inline bool airtime_catchup_v_t(struct airtime_sched_info *air_sched,
1703 u64 v_t, u64 now)
1704{
1705 air_sched->v_t = v_t;
1706 return true;
1707}
1708
1709static inline void init_airtime_info(struct airtime_info *air_info,
1710 struct airtime_sched_info *air_sched)
1711{
1712 atomic_set(&air_info->aql_tx_pending, 0);
1713 air_info->aql_limit_low = air_sched->aql_txq_limit_low;
1714 air_info->aql_limit_high = air_sched->aql_txq_limit_high;
1715 airtime_weight_set(air_info, IEEE80211_DEFAULT_AIRTIME_WEIGHT);
1716 INIT_LIST_HEAD(&air_info->list);
1717}
1718
1719static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1720{
1721 return ether_addr_equal(raddr, addr) ||
1722 is_broadcast_ether_addr(raddr);
1723}
1724
1725static inline bool
1726ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1727{
1728 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1729 status->flag & RX_FLAG_MACTIME_END);
1730 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1731 RX_FLAG_MACTIME_PLCP_START));
1732}
1733
1734void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1735void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1736
1737/* This function returns the number of multicast stations connected to this
1738 * interface. It returns -1 if that number is not tracked, that is for netdevs
1739 * not in AP or AP_VLAN mode or when using 4addr.
1740 */
1741static inline int
1742ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1743{
1744 if (sdata->vif.type == NL80211_IFTYPE_AP)
1745 return atomic_read(&sdata->u.ap.num_mcast_sta);
1746 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1747 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1748 return -1;
1749}
1750
1751u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1752 struct ieee80211_rx_status *status,
1753 unsigned int mpdu_len,
1754 unsigned int mpdu_offset);
1755int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1756void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1757void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1758 u32 changed);
1759void ieee80211_configure_filter(struct ieee80211_local *local);
1760u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1761
1762u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1763int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1764 u64 *cookie, gfp_t gfp);
1765
1766void ieee80211_check_fast_rx(struct sta_info *sta);
1767void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1768void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1769void ieee80211_clear_fast_rx(struct sta_info *sta);
1770
1771/* STA code */
1772void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1773int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1774 struct cfg80211_auth_request *req);
1775int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1776 struct cfg80211_assoc_request *req);
1777int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1778 struct cfg80211_deauth_request *req);
1779int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1780 struct cfg80211_disassoc_request *req);
1781void ieee80211_send_pspoll(struct ieee80211_local *local,
1782 struct ieee80211_sub_if_data *sdata);
1783void ieee80211_recalc_ps(struct ieee80211_local *local);
1784void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1785int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1786void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1787void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1788 struct sk_buff *skb);
1789void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1790 struct sk_buff *skb);
1791void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1792void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1793void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1794void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1795 __le16 fc, bool acked);
1796void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1797void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1798void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1799void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1800 u8 *bssid, u8 reason, bool tx);
1801
1802/* IBSS code */
1803void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1804void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1805void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1806 const u8 *bssid, const u8 *addr, u32 supp_rates);
1807int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1808 struct cfg80211_ibss_params *params);
1809int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1810void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1811void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1812 struct sk_buff *skb);
1813int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1814 struct cfg80211_csa_settings *csa_settings);
1815int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1816void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1817
1818/* OCB code */
1819void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1820void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1821 const u8 *bssid, const u8 *addr, u32 supp_rates);
1822void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1823int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1824 struct ocb_setup *setup);
1825int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1826
1827/* mesh code */
1828void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1829void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1830 struct sk_buff *skb);
1831int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1832 struct cfg80211_csa_settings *csa_settings);
1833int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1834
1835/* scan/BSS handling */
1836void ieee80211_scan_work(struct work_struct *work);
1837int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1838 const u8 *ssid, u8 ssid_len,
1839 struct ieee80211_channel **channels,
1840 unsigned int n_channels,
1841 enum nl80211_bss_scan_width scan_width);
1842int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1843 struct cfg80211_scan_request *req);
1844void ieee80211_scan_cancel(struct ieee80211_local *local);
1845void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1846void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1847
1848void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1849struct ieee80211_bss *
1850ieee80211_bss_info_update(struct ieee80211_local *local,
1851 struct ieee80211_rx_status *rx_status,
1852 struct ieee80211_mgmt *mgmt,
1853 size_t len,
1854 struct ieee80211_channel *channel);
1855void ieee80211_rx_bss_put(struct ieee80211_local *local,
1856 struct ieee80211_bss *bss);
1857
1858/* scheduled scan handling */
1859int
1860__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1861 struct cfg80211_sched_scan_request *req);
1862int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1863 struct cfg80211_sched_scan_request *req);
1864int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1865void ieee80211_sched_scan_end(struct ieee80211_local *local);
1866void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1867
1868/* off-channel/mgmt-tx */
1869void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1870void ieee80211_offchannel_return(struct ieee80211_local *local);
1871void ieee80211_roc_setup(struct ieee80211_local *local);
1872void ieee80211_start_next_roc(struct ieee80211_local *local);
1873void ieee80211_roc_purge(struct ieee80211_local *local,
1874 struct ieee80211_sub_if_data *sdata);
1875int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1876 struct ieee80211_channel *chan,
1877 unsigned int duration, u64 *cookie);
1878int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1879 struct wireless_dev *wdev, u64 cookie);
1880int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1881 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1882int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1883 struct wireless_dev *wdev, u64 cookie);
1884
1885/* channel switch handling */
1886void ieee80211_csa_finalize_work(struct work_struct *work);
1887int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1888 struct cfg80211_csa_settings *params);
1889
1890/* interface handling */
1891#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1892 NETIF_F_HW_CSUM | NETIF_F_SG | \
1893 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
1894#define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1895#define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1896 MAC80211_SUPPORTED_FEATURES_RX)
1897
1898int ieee80211_iface_init(void);
1899void ieee80211_iface_exit(void);
1900int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1901 unsigned char name_assign_type,
1902 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1903 struct vif_params *params);
1904int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1905 enum nl80211_iftype type);
1906void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1907void ieee80211_remove_interfaces(struct ieee80211_local *local);
1908u32 ieee80211_idle_off(struct ieee80211_local *local);
1909void ieee80211_recalc_idle(struct ieee80211_local *local);
1910void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1911 const int offset);
1912int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1913void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1914int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1915void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1916
1917bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1918void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1919 bool update_bss);
1920void ieee80211_recalc_offload(struct ieee80211_local *local);
1921
1922static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1923{
1924 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1925}
1926
1927/* tx handling */
1928void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1929void ieee80211_tx_pending(struct tasklet_struct *t);
1930netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1931 struct net_device *dev);
1932netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1933 struct net_device *dev);
1934netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
1935 struct net_device *dev);
1936void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1937 struct net_device *dev,
1938 u32 info_flags,
1939 u32 ctrl_flags,
1940 u64 *cookie);
1941void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1942 struct sk_buff_head *skbs);
1943struct sk_buff *
1944ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1945 struct sk_buff *skb, u32 info_flags);
1946void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1947 struct ieee80211_supported_band *sband,
1948 int retry_count, int shift, bool send_to_cooked,
1949 struct ieee80211_tx_status *status);
1950
1951void ieee80211_check_fast_xmit(struct sta_info *sta);
1952void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1953void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1954void ieee80211_clear_fast_xmit(struct sta_info *sta);
1955int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
1956 const u8 *buf, size_t len,
1957 const u8 *dest, __be16 proto, bool unencrypted,
1958 u64 *cookie);
1959int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
1960 const u8 *buf, size_t len);
1961void ieee80211_resort_txq(struct ieee80211_hw *hw,
1962 struct ieee80211_txq *txq);
1963void ieee80211_unschedule_txq(struct ieee80211_hw *hw,
1964 struct ieee80211_txq *txq,
1965 bool purge);
1966void ieee80211_update_airtime_weight(struct ieee80211_local *local,
1967 struct airtime_sched_info *air_sched,
1968 u64 now, bool force);
1969
1970/* HT */
1971void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1972 struct ieee80211_sta_ht_cap *ht_cap);
1973bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1974 struct ieee80211_supported_band *sband,
1975 const struct ieee80211_ht_cap *ht_cap_ie,
1976 struct sta_info *sta);
1977void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1978 const u8 *da, u16 tid,
1979 u16 initiator, u16 reason_code);
1980int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1981 enum ieee80211_smps_mode smps, const u8 *da,
1982 const u8 *bssid);
1983void ieee80211_request_smps_ap_work(struct work_struct *work);
1984void ieee80211_request_smps_mgd_work(struct work_struct *work);
1985bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1986 enum ieee80211_smps_mode smps_mode_new);
1987
1988void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1989 u16 initiator, u16 reason, bool stop);
1990void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1991 u16 initiator, u16 reason, bool stop);
1992void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
1993 u8 dialog_token, u16 timeout,
1994 u16 start_seq_num, u16 ba_policy, u16 tid,
1995 u16 buf_size, bool tx, bool auto_seq,
1996 const struct ieee80211_addba_ext_ie *addbaext);
1997void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1998 enum ieee80211_agg_stop_reason reason);
1999void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2000 struct sta_info *sta,
2001 struct ieee80211_mgmt *mgmt, size_t len);
2002void ieee80211_process_addba_resp(struct ieee80211_local *local,
2003 struct sta_info *sta,
2004 struct ieee80211_mgmt *mgmt,
2005 size_t len);
2006void ieee80211_process_addba_request(struct ieee80211_local *local,
2007 struct sta_info *sta,
2008 struct ieee80211_mgmt *mgmt,
2009 size_t len);
2010
2011int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2012 enum ieee80211_agg_stop_reason reason);
2013int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2014 enum ieee80211_agg_stop_reason reason);
2015void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2016 struct tid_ampdu_tx *tid_tx);
2017void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2018 struct tid_ampdu_tx *tid_tx);
2019void ieee80211_ba_session_work(struct work_struct *work);
2020void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2021void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2022
2023u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2024enum nl80211_smps_mode
2025ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2026
2027/* VHT */
2028void
2029ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2030 struct ieee80211_supported_band *sband,
2031 const struct ieee80211_vht_cap *vht_cap_ie,
2032 struct sta_info *sta);
2033enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
2034enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
2035void ieee80211_sta_set_rx_nss(struct sta_info *sta);
2036enum ieee80211_sta_rx_bandwidth
2037ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2038enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
2039void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2040 struct ieee80211_mgmt *mgmt);
2041u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2042 struct sta_info *sta, u8 opmode,
2043 enum nl80211_band band);
2044void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2045 struct sta_info *sta, u8 opmode,
2046 enum nl80211_band band);
2047void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2048 struct ieee80211_sta_vht_cap *vht_cap);
2049void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2050 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2051enum nl80211_chan_width
2052ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
2053
2054/* HE */
2055void
2056ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2057 struct ieee80211_supported_band *sband,
2058 const u8 *he_cap_ie, u8 he_cap_len,
2059 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2060 struct sta_info *sta);
2061void
2062ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2063 const struct ieee80211_he_spr *he_spr_ie_elem);
2064
2065void
2066ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2067 const struct ieee80211_he_operation *he_op_ie_elem);
2068
2069/* S1G */
2070void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2071
2072/* Spectrum management */
2073void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2074 struct ieee80211_mgmt *mgmt,
2075 size_t len);
2076/**
2077 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2078 * @sdata: the sdata of the interface which has received the frame
2079 * @elems: parsed 802.11 elements received with the frame
2080 * @current_band: indicates the current band
2081 * @vht_cap_info: VHT capabilities of the transmitter
2082 * @sta_flags: contains information about own capabilities and restrictions
2083 * to decide which channel switch announcements can be accepted. Only the
2084 * following subset of &enum ieee80211_sta_flags are evaluated:
2085 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
2086 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
2087 * %IEEE80211_STA_DISABLE_160MHZ.
2088 * @bssid: the currently connected bssid (for reporting)
2089 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2090 All of them will be filled with if success only.
2091 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2092 */
2093int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2094 struct ieee802_11_elems *elems,
2095 enum nl80211_band current_band,
2096 u32 vht_cap_info,
2097 u32 sta_flags, u8 *bssid,
2098 struct ieee80211_csa_ie *csa_ie);
2099
2100/* Suspend/resume and hw reconfiguration */
2101int ieee80211_reconfig(struct ieee80211_local *local);
2102void ieee80211_stop_device(struct ieee80211_local *local);
2103
2104int __ieee80211_suspend(struct ieee80211_hw *hw,
2105 struct cfg80211_wowlan *wowlan);
2106
2107static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2108{
2109 struct ieee80211_local *local = hw_to_local(hw);
2110
2111 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2112 !test_bit(SCAN_COMPLETED, &local->scanning),
2113 "%s: resume with hardware scan still in progress\n",
2114 wiphy_name(hw->wiphy));
2115
2116 return ieee80211_reconfig(hw_to_local(hw));
2117}
2118
2119/* utility functions/constants */
2120extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2121int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2122 int rate, int erp, int short_preamble,
2123 int shift);
2124void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2125 struct ieee80211_tx_queue_params *qparam,
2126 int ac);
2127void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
2128 bool bss_notify, bool enable_qos);
2129void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2130 struct sta_info *sta, struct sk_buff *skb);
2131
2132void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2133 struct sk_buff *skb, int tid,
2134 enum nl80211_band band);
2135
2136/* sta_out needs to be checked for ERR_PTR() before using */
2137int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2138 struct sk_buff *skb,
2139 struct sta_info **sta_out);
2140
2141static inline void
2142ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2143 struct sk_buff *skb, int tid,
2144 enum nl80211_band band)
2145{
2146 rcu_read_lock();
2147 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
2148 rcu_read_unlock();
2149}
2150
2151static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2152 struct sk_buff *skb, int tid)
2153{
2154 struct ieee80211_chanctx_conf *chanctx_conf;
2155
2156 rcu_read_lock();
2157 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2158 if (WARN_ON(!chanctx_conf)) {
2159 rcu_read_unlock();
2160 kfree_skb(skb);
2161 return;
2162 }
2163
2164 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
2165 chanctx_conf->def.chan->band);
2166 rcu_read_unlock();
2167}
2168
2169static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2170 struct sk_buff *skb)
2171{
2172 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2173 ieee80211_tx_skb_tid(sdata, skb, 7);
2174}
2175
2176u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2177 struct ieee802_11_elems *elems,
2178 u64 filter, u32 crc, u8 *transmitter_bssid,
2179 u8 *bss_bssid);
2180static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
2181 bool action,
2182 struct ieee802_11_elems *elems,
2183 u8 *transmitter_bssid,
2184 u8 *bss_bssid)
2185{
2186 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0,
2187 transmitter_bssid, bss_bssid);
2188}
2189
2190
2191extern const int ieee802_1d_to_ac[8];
2192
2193static inline int ieee80211_ac_from_tid(int tid)
2194{
2195 return ieee802_1d_to_ac[tid & 7];
2196}
2197
2198void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2199void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2200void ieee80211_dynamic_ps_timer(struct timer_list *t);
2201void ieee80211_send_nullfunc(struct ieee80211_local *local,
2202 struct ieee80211_sub_if_data *sdata,
2203 bool powersave);
2204void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2205 struct ieee80211_sub_if_data *sdata);
2206void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2207 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2208
2209void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2210 unsigned long queues,
2211 enum queue_stop_reason reason,
2212 bool refcounted);
2213void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2214 struct ieee80211_sub_if_data *sdata,
2215 enum queue_stop_reason reason);
2216void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2217 struct ieee80211_sub_if_data *sdata,
2218 enum queue_stop_reason reason);
2219void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2220 unsigned long queues,
2221 enum queue_stop_reason reason,
2222 bool refcounted);
2223void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2224 enum queue_stop_reason reason,
2225 bool refcounted);
2226void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2227 enum queue_stop_reason reason,
2228 bool refcounted);
2229void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
2230void ieee80211_add_pending_skb(struct ieee80211_local *local,
2231 struct sk_buff *skb);
2232void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2233 struct sk_buff_head *skbs);
2234void ieee80211_flush_queues(struct ieee80211_local *local,
2235 struct ieee80211_sub_if_data *sdata, bool drop);
2236void __ieee80211_flush_queues(struct ieee80211_local *local,
2237 struct ieee80211_sub_if_data *sdata,
2238 unsigned int queues, bool drop);
2239
2240static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2241{
2242 /*
2243 * It's unsafe to try to do any work during reconfigure flow.
2244 * When the flow ends the work will be requeued.
2245 */
2246 if (local->in_reconfig)
2247 return false;
2248
2249 /*
2250 * If quiescing is set, we are racing with __ieee80211_suspend.
2251 * __ieee80211_suspend flushes the workers after setting quiescing,
2252 * and we check quiescing / suspended before enqueing new workers.
2253 * We should abort the worker to avoid the races below.
2254 */
2255 if (local->quiescing)
2256 return false;
2257
2258 /*
2259 * We might already be suspended if the following scenario occurs:
2260 * __ieee80211_suspend Control path
2261 *
2262 * if (local->quiescing)
2263 * return;
2264 * local->quiescing = true;
2265 * flush_workqueue();
2266 * queue_work(...);
2267 * local->suspended = true;
2268 * local->quiescing = false;
2269 * worker starts running...
2270 */
2271 if (local->suspended)
2272 return false;
2273
2274 return true;
2275}
2276
2277int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2278void ieee80211_txq_set_params(struct ieee80211_local *local);
2279void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2280void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2281 struct sta_info *sta,
2282 struct txq_info *txq, int tid);
2283void ieee80211_txq_purge(struct ieee80211_local *local,
2284 struct txq_info *txqi);
2285void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2286 struct ieee80211_sub_if_data *sdata);
2287void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2288 struct txq_info *txqi);
2289void ieee80211_wake_txqs(struct tasklet_struct *t);
2290void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2291 u16 transaction, u16 auth_alg, u16 status,
2292 const u8 *extra, size_t extra_len, const u8 *bssid,
2293 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2294 u32 tx_flags);
2295void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2296 const u8 *da, const u8 *bssid,
2297 u16 stype, u16 reason,
2298 bool send_frame, u8 *frame_buf);
2299
2300enum {
2301 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2302 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2303 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2304};
2305
2306int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2307 size_t buffer_len,
2308 struct ieee80211_scan_ies *ie_desc,
2309 const u8 *ie, size_t ie_len,
2310 u8 bands_used, u32 *rate_masks,
2311 struct cfg80211_chan_def *chandef,
2312 u32 flags);
2313struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2314 const u8 *src, const u8 *dst,
2315 u32 ratemask,
2316 struct ieee80211_channel *chan,
2317 const u8 *ssid, size_t ssid_len,
2318 const u8 *ie, size_t ie_len,
2319 u32 flags);
2320u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2321 struct ieee802_11_elems *elems,
2322 enum nl80211_band band, u32 *basic_rates);
2323int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2324 enum ieee80211_smps_mode smps_mode);
2325void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2326void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2327
2328size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2329u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2330 u16 cap);
2331u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2332 const struct cfg80211_chan_def *chandef,
2333 u16 prot_mode, bool rifs_mode);
2334void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2335 const struct cfg80211_chan_def *chandef);
2336u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2337 u32 cap);
2338u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2339 const struct cfg80211_chan_def *chandef);
2340u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2341u8 *ieee80211_ie_build_he_cap(u8 *pos,
2342 const struct ieee80211_sta_he_cap *he_cap,
2343 u8 *end);
2344void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2345 struct sk_buff *skb);
2346u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2347int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2348 const struct ieee80211_supported_band *sband,
2349 const u8 *srates, int srates_len, u32 *rates);
2350int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2351 struct sk_buff *skb, bool need_basic,
2352 enum nl80211_band band);
2353int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2354 struct sk_buff *skb, bool need_basic,
2355 enum nl80211_band band);
2356u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2357void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2358 struct ieee80211_sta_s1g_cap *caps,
2359 struct sk_buff *skb);
2360void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2361 struct sk_buff *skb);
2362
2363/* channel management */
2364bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2365 struct cfg80211_chan_def *chandef);
2366bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2367 const struct ieee80211_vht_operation *oper,
2368 const struct ieee80211_ht_operation *htop,
2369 struct cfg80211_chan_def *chandef);
2370bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2371 const struct ieee80211_he_operation *he_oper,
2372 struct cfg80211_chan_def *chandef);
2373bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2374 struct cfg80211_chan_def *chandef);
2375u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2376
2377int __must_check
2378ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2379 const struct cfg80211_chan_def *chandef,
2380 enum ieee80211_chanctx_mode mode);
2381int __must_check
2382ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2383 const struct cfg80211_chan_def *chandef,
2384 enum ieee80211_chanctx_mode mode,
2385 bool radar_required);
2386int __must_check
2387ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2388int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2389
2390int __must_check
2391ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2392 const struct cfg80211_chan_def *chandef,
2393 u32 *changed);
2394void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2395void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2396void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2397 bool clear);
2398int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2399 struct ieee80211_chanctx *ctx);
2400
2401void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2402 struct ieee80211_chanctx *chanctx);
2403void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2404 struct ieee80211_chanctx *ctx);
2405bool ieee80211_is_radar_required(struct ieee80211_local *local);
2406
2407void ieee80211_dfs_cac_timer(unsigned long data);
2408void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2409void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2410void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2411int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2412 struct cfg80211_csa_settings *csa_settings);
2413
2414bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2415bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2416const struct ieee80211_cipher_scheme *
2417ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2418 enum nl80211_iftype iftype);
2419int ieee80211_cs_headroom(struct ieee80211_local *local,
2420 struct cfg80211_crypto_settings *crypto,
2421 enum nl80211_iftype iftype);
2422void ieee80211_recalc_dtim(struct ieee80211_local *local,
2423 struct ieee80211_sub_if_data *sdata);
2424int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2425 const struct cfg80211_chan_def *chandef,
2426 enum ieee80211_chanctx_mode chanmode,
2427 u8 radar_detect);
2428int ieee80211_max_num_channels(struct ieee80211_local *local);
2429void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2430 struct ieee80211_chanctx *ctx);
2431
2432/* TDLS */
2433int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2434 const u8 *peer, u8 action_code, u8 dialog_token,
2435 u16 status_code, u32 peer_capability,
2436 bool initiator, const u8 *extra_ies,
2437 size_t extra_ies_len);
2438int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2439 const u8 *peer, enum nl80211_tdls_operation oper);
2440void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2441int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2442 const u8 *addr, u8 oper_class,
2443 struct cfg80211_chan_def *chandef);
2444void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2445 struct net_device *dev,
2446 const u8 *addr);
2447void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2448void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2449 const u8 *peer, u16 reason);
2450void
2451ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2452 struct sk_buff *skb);
2453
2454
2455const char *ieee80211_get_reason_code_string(u16 reason_code);
2456u16 ieee80211_encode_usf(int val);
2457u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2458 enum nl80211_iftype type);
2459
2460extern const struct ethtool_ops ieee80211_ethtool_ops;
2461
2462u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2463 struct ieee80211_vif *vif,
2464 struct ieee80211_sta *pubsta,
2465 int len, bool ampdu);
2466#ifdef CONFIG_MAC80211_NOINLINE
2467#define debug_noinline noinline
2468#else
2469#define debug_noinline
2470#endif
2471
2472void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2473void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2474
2475#endif /* IEEE80211_I_H */
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) 2018-2024 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
38extern const struct cfg80211_ops mac80211_config_ops;
39
40struct ieee80211_local;
41struct 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
82extern 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
88enum 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
95static inline bool
96ieee80211_sta_keep_active(struct sta_info *sta, u8 ac)
97{
98 /* Keep a station's queues on the active list for deficit accounting
99 * purposes if it was active or queued during the last 100ms.
100 */
101 return time_before_eq(jiffies, sta->airtime[ac].last_active + HZ / 10);
102}
103
104struct ieee80211_bss {
105 u32 device_ts_beacon, device_ts_presp;
106
107 bool wmm_used;
108 bool uapsd_supported;
109
110#define IEEE80211_MAX_SUPP_RATES 32
111 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
112 size_t supp_rates_len;
113 struct ieee80211_rate *beacon_rate;
114
115 u32 vht_cap_info;
116
117 /*
118 * During association, we save an ERP value from a probe response so
119 * that we can feed ERP info to the driver when handling the
120 * association completes. these fields probably won't be up-to-date
121 * otherwise, you probably don't want to use them.
122 */
123 bool has_erp_value;
124 u8 erp_value;
125
126 /* Keep track of the corruption of the last beacon/probe response. */
127 u8 corrupt_data;
128
129 /* Keep track of what bits of information we have valid info for. */
130 u8 valid_data;
131};
132
133/**
134 * enum ieee80211_bss_corrupt_data_flags - BSS data corruption flags
135 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
136 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
137 *
138 * These are bss flags that are attached to a bss in the
139 * @corrupt_data field of &struct ieee80211_bss.
140 */
141enum ieee80211_bss_corrupt_data_flags {
142 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
143 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
144};
145
146/**
147 * enum ieee80211_bss_valid_data_flags - BSS valid data flags
148 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
149 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
150 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
151 *
152 * These are bss flags that are attached to a bss in the
153 * @valid_data field of &struct ieee80211_bss. They show which parts
154 * of the data structure were received as a result of an un-corrupted
155 * beacon/probe response.
156 */
157enum ieee80211_bss_valid_data_flags {
158 IEEE80211_BSS_VALID_WMM = BIT(1),
159 IEEE80211_BSS_VALID_RATES = BIT(2),
160 IEEE80211_BSS_VALID_ERP = BIT(3)
161};
162
163typedef unsigned __bitwise ieee80211_tx_result;
164#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
165#define TX_DROP ((__force ieee80211_tx_result) 1u)
166#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
167
168#define IEEE80211_TX_UNICAST BIT(1)
169#define IEEE80211_TX_PS_BUFFERED BIT(2)
170
171struct ieee80211_tx_data {
172 struct sk_buff *skb;
173 struct sk_buff_head skbs;
174 struct ieee80211_local *local;
175 struct ieee80211_sub_if_data *sdata;
176 struct sta_info *sta;
177 struct ieee80211_key *key;
178 struct ieee80211_tx_rate rate;
179
180 unsigned int flags;
181};
182
183/**
184 * enum ieee80211_packet_rx_flags - packet RX flags
185 * @IEEE80211_RX_AMSDU: a-MSDU packet
186 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
187 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
188 *
189 * These are per-frame flags that are attached to a frame in the
190 * @rx_flags field of &struct ieee80211_rx_status.
191 */
192enum ieee80211_packet_rx_flags {
193 IEEE80211_RX_AMSDU = BIT(3),
194 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
195 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
196};
197
198/**
199 * enum ieee80211_rx_flags - RX data flags
200 *
201 * @IEEE80211_RX_CMNTR: received on cooked monitor already
202 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
203 * to cfg80211_report_obss_beacon().
204 *
205 * These flags are used across handling multiple interfaces
206 * for a single frame.
207 */
208enum ieee80211_rx_flags {
209 IEEE80211_RX_CMNTR = BIT(0),
210 IEEE80211_RX_BEACON_REPORTED = BIT(1),
211};
212
213struct ieee80211_rx_data {
214 struct list_head *list;
215 struct sk_buff *skb;
216 struct ieee80211_local *local;
217 struct ieee80211_sub_if_data *sdata;
218 struct ieee80211_link_data *link;
219 struct sta_info *sta;
220 struct link_sta_info *link_sta;
221 struct ieee80211_key *key;
222
223 unsigned int flags;
224
225 /*
226 * Index into sequence numbers array, 0..16
227 * since the last (16) is used for non-QoS,
228 * will be 16 on non-QoS frames.
229 */
230 int seqno_idx;
231
232 /*
233 * Index into the security IV/PN arrays, 0..16
234 * since the last (16) is used for CCMP-encrypted
235 * management frames, will be set to 16 on mgmt
236 * frames and 0 on non-QoS frames.
237 */
238 int security_idx;
239
240 int link_id;
241
242 union {
243 struct {
244 u32 iv32;
245 u16 iv16;
246 } tkip;
247 struct {
248 u8 pn[IEEE80211_CCMP_PN_LEN];
249 } ccm_gcm;
250 };
251};
252
253struct ieee80211_csa_settings {
254 const u16 *counter_offsets_beacon;
255 const u16 *counter_offsets_presp;
256
257 int n_counter_offsets_beacon;
258 int n_counter_offsets_presp;
259
260 u8 count;
261};
262
263struct ieee80211_color_change_settings {
264 u16 counter_offset_beacon;
265 u16 counter_offset_presp;
266 u8 count;
267};
268
269struct beacon_data {
270 u8 *head, *tail;
271 int head_len, tail_len;
272 struct ieee80211_meshconf_ie *meshconf;
273 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
274 u8 cntdwn_current_counter;
275 struct cfg80211_mbssid_elems *mbssid_ies;
276 struct cfg80211_rnr_elems *rnr_ies;
277 struct rcu_head rcu_head;
278};
279
280struct probe_resp {
281 struct rcu_head rcu_head;
282 int len;
283 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
284 u8 data[];
285};
286
287struct fils_discovery_data {
288 struct rcu_head rcu_head;
289 int len;
290 u8 data[];
291};
292
293struct unsol_bcast_probe_resp_data {
294 struct rcu_head rcu_head;
295 int len;
296 u8 data[];
297};
298
299struct ps_data {
300 /* yes, this looks ugly, but guarantees that we can later use
301 * bitmap_empty :)
302 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
303 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
304 __aligned(__alignof__(unsigned long));
305 struct sk_buff_head bc_buf;
306 atomic_t num_sta_ps; /* number of stations in PS mode */
307 int dtim_count;
308 bool dtim_bc_mc;
309};
310
311struct ieee80211_if_ap {
312 struct list_head vlans; /* write-protected with RTNL and local->mtx */
313
314 struct ps_data ps;
315 atomic_t num_mcast_sta; /* number of stations receiving multicast */
316
317 bool multicast_to_unicast;
318 bool active;
319};
320
321struct ieee80211_if_vlan {
322 struct list_head list; /* write-protected with RTNL and local->mtx */
323
324 /* used for all tx if the VLAN is configured to 4-addr mode */
325 struct sta_info __rcu *sta;
326 atomic_t num_mcast_sta; /* number of stations receiving multicast */
327};
328
329struct mesh_stats {
330 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
331 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
332 __u32 fwded_frames; /* Mesh total forwarded frames */
333 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
334 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
335};
336
337#define PREQ_Q_F_START 0x1
338#define PREQ_Q_F_REFRESH 0x2
339struct mesh_preq_queue {
340 struct list_head list;
341 u8 dst[ETH_ALEN];
342 u8 flags;
343};
344
345struct ieee80211_roc_work {
346 struct list_head list;
347
348 struct ieee80211_sub_if_data *sdata;
349
350 struct ieee80211_channel *chan;
351
352 bool started, abort, hw_begun, notified;
353 bool on_channel;
354
355 unsigned long start_time;
356
357 u32 duration, req_duration;
358 struct sk_buff *frame;
359 u64 cookie, mgmt_tx_cookie;
360 enum ieee80211_roc_type type;
361};
362
363/* flags used in struct ieee80211_if_managed.flags */
364enum ieee80211_sta_flags {
365 IEEE80211_STA_CONNECTION_POLL = BIT(1),
366 IEEE80211_STA_CONTROL_PORT = BIT(2),
367 IEEE80211_STA_MFP_ENABLED = BIT(6),
368 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
369 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
370 IEEE80211_STA_ENABLE_RRM = BIT(15),
371};
372
373enum ieee80211_conn_mode {
374 IEEE80211_CONN_MODE_S1G,
375 IEEE80211_CONN_MODE_LEGACY,
376 IEEE80211_CONN_MODE_HT,
377 IEEE80211_CONN_MODE_VHT,
378 IEEE80211_CONN_MODE_HE,
379 IEEE80211_CONN_MODE_EHT,
380};
381
382#define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_EHT
383
384enum ieee80211_conn_bw_limit {
385 IEEE80211_CONN_BW_LIMIT_20,
386 IEEE80211_CONN_BW_LIMIT_40,
387 IEEE80211_CONN_BW_LIMIT_80,
388 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */
389 IEEE80211_CONN_BW_LIMIT_320,
390};
391
392struct ieee80211_conn_settings {
393 enum ieee80211_conn_mode mode;
394 enum ieee80211_conn_bw_limit bw_limit;
395};
396
397extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited;
398
399struct ieee80211_mgd_auth_data {
400 struct cfg80211_bss *bss;
401 unsigned long timeout;
402 int tries;
403 u16 algorithm, expected_transaction;
404
405 u8 key[WLAN_KEY_LEN_WEP104];
406 u8 key_len, key_idx;
407 bool done, waiting;
408 bool peer_confirmed;
409 bool timeout_started;
410 int link_id;
411
412 u8 ap_addr[ETH_ALEN] __aligned(2);
413
414 u16 sae_trans, sae_status;
415 size_t data_len;
416 u8 data[];
417};
418
419struct ieee80211_mgd_assoc_data {
420 struct {
421 struct cfg80211_bss *bss;
422
423 u8 addr[ETH_ALEN] __aligned(2);
424
425 u8 ap_ht_param;
426
427 struct ieee80211_vht_cap ap_vht_cap;
428
429 size_t elems_len;
430 u8 *elems; /* pointing to inside ie[] below */
431
432 struct ieee80211_conn_settings conn;
433
434 u16 status;
435
436 bool disabled;
437 } link[IEEE80211_MLD_MAX_NUM_LINKS];
438
439 u8 ap_addr[ETH_ALEN] __aligned(2);
440
441 /* this is for a workaround, so we use it only for non-MLO */
442 const u8 *supp_rates;
443 u8 supp_rates_len;
444
445 unsigned long timeout;
446 int tries;
447
448 u8 prev_ap_addr[ETH_ALEN];
449 u8 ssid[IEEE80211_MAX_SSID_LEN];
450 u8 ssid_len;
451 bool wmm, uapsd;
452 bool need_beacon;
453 bool synced;
454 bool timeout_started;
455 bool comeback; /* whether the AP has requested association comeback */
456 bool s1g;
457 bool spp_amsdu;
458
459 unsigned int assoc_link_id;
460
461 u8 fils_nonces[2 * FILS_NONCE_LEN];
462 u8 fils_kek[FILS_MAX_KEK_LEN];
463 size_t fils_kek_len;
464
465 size_t ie_len;
466 u8 *ie_pos; /* used to fill ie[] with link[].elems */
467 u8 ie[];
468};
469
470struct ieee80211_sta_tx_tspec {
471 /* timestamp of the first packet in the time slice */
472 unsigned long time_slice_start;
473
474 u32 admitted_time; /* in usecs, unlike over the air */
475 u8 tsid;
476 s8 up; /* signed to be able to invalidate with -1 during teardown */
477
478 /* consumed TX time in microseconds in the time slice */
479 u32 consumed_tx_time;
480 enum {
481 TX_TSPEC_ACTION_NONE = 0,
482 TX_TSPEC_ACTION_DOWNGRADE,
483 TX_TSPEC_ACTION_STOP_DOWNGRADE,
484 } action;
485 bool downgraded;
486};
487
488/* Advertised TID-to-link mapping info */
489struct ieee80211_adv_ttlm_info {
490 /* time in TUs at which the new mapping is established, or 0 if there is
491 * no planned advertised TID-to-link mapping
492 */
493 u16 switch_time;
494 u32 duration; /* duration of the planned T2L map in TUs */
495 u16 map; /* map of usable links for all TIDs */
496 bool active; /* whether the advertised mapping is active or not */
497};
498
499DECLARE_EWMA(beacon_signal, 4, 4)
500
501struct ieee80211_if_managed {
502 struct timer_list timer;
503 struct timer_list conn_mon_timer;
504 struct timer_list bcn_mon_timer;
505 struct wiphy_work monitor_work;
506 struct wiphy_work beacon_connection_loss_work;
507 struct wiphy_work csa_connection_drop_work;
508
509 unsigned long beacon_timeout;
510 unsigned long probe_timeout;
511 int probe_send_count;
512 bool nullfunc_failed;
513 u8 connection_loss:1,
514 driver_disconnect:1,
515 reconnect:1,
516 associated:1;
517
518 struct ieee80211_mgd_auth_data *auth_data;
519 struct ieee80211_mgd_assoc_data *assoc_data;
520
521 bool powersave; /* powersave requested for this iface */
522 bool broken_ap; /* AP is broken -- turn off powersave */
523
524 unsigned int flags;
525
526 u16 mcast_seq_last;
527
528 bool status_acked;
529 bool status_received;
530 __le16 status_fc;
531
532 enum {
533 IEEE80211_MFP_DISABLED,
534 IEEE80211_MFP_OPTIONAL,
535 IEEE80211_MFP_REQUIRED
536 } mfp; /* management frame protection */
537
538 /*
539 * Bitmask of enabled u-apsd queues,
540 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
541 * to take effect.
542 */
543 unsigned int uapsd_queues;
544
545 /*
546 * Maximum number of buffered frames AP can deliver during a
547 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
548 * Needs a new association to take effect.
549 */
550 unsigned int uapsd_max_sp_len;
551
552 u8 use_4addr;
553
554 /*
555 * State variables for keeping track of RSSI of the AP currently
556 * connected to and informing driver when RSSI has gone
557 * below/above a certain threshold.
558 */
559 int rssi_min_thold, rssi_max_thold;
560
561 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
562 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
563 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
564 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
565 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
566 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
567
568 /* TDLS support */
569 u8 tdls_peer[ETH_ALEN] __aligned(2);
570 struct wiphy_delayed_work tdls_peer_del_work;
571 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
572 struct sk_buff *teardown_skb; /* A copy to send through the AP */
573 spinlock_t teardown_lock; /* To lock changing teardown_skb */
574 bool tdls_wider_bw_prohibited;
575
576 /* WMM-AC TSPEC support */
577 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
578 /* Use a separate work struct so that we can do something here
579 * while the sdata->work is flushing the queues, for example.
580 * otherwise, in scenarios where we hardly get any traffic out
581 * on the BE queue, but there's a lot of VO traffic, we might
582 * get stuck in a downgraded situation and flush takes forever.
583 */
584 struct wiphy_delayed_work tx_tspec_wk;
585
586 /* Information elements from the last transmitted (Re)Association
587 * Request frame.
588 */
589 u8 *assoc_req_ies;
590 size_t assoc_req_ies_len;
591
592 struct wiphy_delayed_work ml_reconf_work;
593 u16 removed_links;
594
595 /* TID-to-link mapping support */
596 struct wiphy_delayed_work ttlm_work;
597 struct ieee80211_adv_ttlm_info ttlm_info;
598
599 /* dialog token enumerator for neg TTLM request */
600 u8 dialog_token_alloc;
601 struct wiphy_delayed_work neg_ttlm_timeout_work;
602};
603
604struct ieee80211_if_ibss {
605 struct timer_list timer;
606 struct wiphy_work csa_connection_drop_work;
607
608 unsigned long last_scan_completed;
609
610 u32 basic_rates;
611
612 bool fixed_bssid;
613 bool fixed_channel;
614 bool privacy;
615
616 bool control_port;
617 bool userspace_handles_dfs;
618
619 u8 bssid[ETH_ALEN] __aligned(2);
620 u8 ssid[IEEE80211_MAX_SSID_LEN];
621 u8 ssid_len, ie_len;
622 u8 *ie;
623 struct cfg80211_chan_def chandef;
624
625 unsigned long ibss_join_req;
626 /* probe response/beacon for IBSS */
627 struct beacon_data __rcu *presp;
628
629 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
630 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
631
632 spinlock_t incomplete_lock;
633 struct list_head incomplete_stations;
634
635 enum {
636 IEEE80211_IBSS_MLME_SEARCH,
637 IEEE80211_IBSS_MLME_JOINED,
638 } state;
639};
640
641/**
642 * struct ieee80211_if_ocb - OCB mode state
643 *
644 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
645 * @wrkq_flags: OCB deferred task action
646 * @incomplete_lock: delayed STA insertion lock
647 * @incomplete_stations: list of STAs waiting for delayed insertion
648 * @joined: indication if the interface is connected to an OCB network
649 */
650struct ieee80211_if_ocb {
651 struct timer_list housekeeping_timer;
652 unsigned long wrkq_flags;
653
654 spinlock_t incomplete_lock;
655 struct list_head incomplete_stations;
656
657 bool joined;
658};
659
660/**
661 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
662 *
663 * these declarations define the interface, which enables
664 * vendor-specific mesh synchronization
665 *
666 * @rx_bcn_presp: beacon/probe response was received
667 * @adjust_tsf: TSF adjustment method
668 */
669struct ieee80211_mesh_sync_ops {
670 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
671 struct ieee80211_mgmt *mgmt, unsigned int len,
672 const struct ieee80211_meshconf_ie *mesh_cfg,
673 struct ieee80211_rx_status *rx_status);
674
675 /* should be called with beacon_data under RCU read lock */
676 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
677 struct beacon_data *beacon);
678 /* add other framework functions here */
679};
680
681struct mesh_csa_settings {
682 struct rcu_head rcu_head;
683 struct cfg80211_csa_settings settings;
684};
685
686/**
687 * struct mesh_table
688 *
689 * @known_gates: list of known mesh gates and their mpaths by the station. The
690 * gate's mpath may or may not be resolved and active.
691 * @gates_lock: protects updates to known_gates
692 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
693 * @walk_head: linked list containing all mesh_path objects
694 * @walk_lock: lock protecting walk_head
695 * @entries: number of entries in the table
696 */
697struct mesh_table {
698 struct hlist_head known_gates;
699 spinlock_t gates_lock;
700 struct rhashtable rhead;
701 struct hlist_head walk_head;
702 spinlock_t walk_lock;
703 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
704};
705
706/**
707 * struct mesh_tx_cache - mesh fast xmit header cache
708 *
709 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key
710 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects
711 * @walk_lock: lock protecting walk_head and rht
712 */
713struct mesh_tx_cache {
714 struct rhashtable rht;
715 struct hlist_head walk_head;
716 spinlock_t walk_lock;
717};
718
719struct ieee80211_if_mesh {
720 struct timer_list housekeeping_timer;
721 struct timer_list mesh_path_timer;
722 struct timer_list mesh_path_root_timer;
723
724 unsigned long wrkq_flags;
725 unsigned long mbss_changed[64 / BITS_PER_LONG];
726
727 bool userspace_handles_dfs;
728
729 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
730 size_t mesh_id_len;
731 /* Active Path Selection Protocol Identifier */
732 u8 mesh_pp_id;
733 /* Active Path Selection Metric Identifier */
734 u8 mesh_pm_id;
735 /* Congestion Control Mode Identifier */
736 u8 mesh_cc_id;
737 /* Synchronization Protocol Identifier */
738 u8 mesh_sp_id;
739 /* Authentication Protocol Identifier */
740 u8 mesh_auth_id;
741 /* Local mesh Sequence Number */
742 u32 sn;
743 /* Last used PREQ ID */
744 u32 preq_id;
745 atomic_t mpaths;
746 /* Timestamp of last SN update */
747 unsigned long last_sn_update;
748 /* Time when it's ok to send next PERR */
749 unsigned long next_perr;
750 /* Timestamp of last PREQ sent */
751 unsigned long last_preq;
752 struct mesh_rmc *rmc;
753 spinlock_t mesh_preq_queue_lock;
754 struct mesh_preq_queue preq_queue;
755 int preq_queue_len;
756 struct mesh_stats mshstats;
757 struct mesh_config mshcfg;
758 atomic_t estab_plinks;
759 atomic_t mesh_seqnum;
760 bool accepting_plinks;
761 int num_gates;
762 struct beacon_data __rcu *beacon;
763 const u8 *ie;
764 u8 ie_len;
765 enum {
766 IEEE80211_MESH_SEC_NONE = 0x0,
767 IEEE80211_MESH_SEC_AUTHED = 0x1,
768 IEEE80211_MESH_SEC_SECURED = 0x2,
769 } security;
770 bool user_mpm;
771 /* Extensible Synchronization Framework */
772 const struct ieee80211_mesh_sync_ops *sync_ops;
773 s64 sync_offset_clockdrift_max;
774 spinlock_t sync_offset_lock;
775 /* mesh power save */
776 enum nl80211_mesh_power_mode nonpeer_pm;
777 int ps_peers_light_sleep;
778 int ps_peers_deep_sleep;
779 struct ps_data ps;
780 /* Channel Switching Support */
781 struct mesh_csa_settings __rcu *csa;
782 enum {
783 IEEE80211_MESH_CSA_ROLE_NONE,
784 IEEE80211_MESH_CSA_ROLE_INIT,
785 IEEE80211_MESH_CSA_ROLE_REPEATER,
786 } csa_role;
787 u8 chsw_ttl;
788 u16 pre_value;
789
790 /* offset from skb->data while building IE */
791 int meshconf_offset;
792
793 struct mesh_table mesh_paths;
794 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
795 int mesh_paths_generation;
796 int mpp_paths_generation;
797 struct mesh_tx_cache tx_cache;
798};
799
800#ifdef CONFIG_MAC80211_MESH
801#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
802 do { (msh)->mshstats.name++; } while (0)
803#else
804#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
805 do { } while (0)
806#endif
807
808/**
809 * enum ieee80211_sub_if_data_flags - virtual interface flags
810 *
811 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
812 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
813 * associated stations and deliver multicast frames both
814 * back to wireless media and to the local net stack.
815 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
816 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
817 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
818 * recovery
819 */
820enum ieee80211_sub_if_data_flags {
821 IEEE80211_SDATA_ALLMULTI = BIT(0),
822 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
823 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
824 IEEE80211_SDATA_IN_DRIVER = BIT(5),
825 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
826};
827
828/**
829 * enum ieee80211_sdata_state_bits - virtual interface state bits
830 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
831 * mirrors netif_running() but is separate for interface type
832 * change handling while the interface is up
833 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
834 * mode, so queues are stopped
835 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
836 * to offchannel, reset when offchannel returns
837 */
838enum ieee80211_sdata_state_bits {
839 SDATA_STATE_RUNNING,
840 SDATA_STATE_OFFCHANNEL,
841 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
842};
843
844/**
845 * enum ieee80211_chanctx_mode - channel context configuration mode
846 *
847 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
848 * multiple interfaces
849 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
850 * only by a single interface. This can be used for example for
851 * non-fixed channel IBSS.
852 */
853enum ieee80211_chanctx_mode {
854 IEEE80211_CHANCTX_SHARED,
855 IEEE80211_CHANCTX_EXCLUSIVE
856};
857
858/**
859 * enum ieee80211_chanctx_replace_state - channel context replacement state
860 *
861 * This is used for channel context in-place reservations that require channel
862 * context switch/swap.
863 *
864 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
865 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
866 * by a (not yet registered) channel context pointed by %replace_ctx.
867 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
868 * replaces an existing channel context pointed to by %replace_ctx.
869 */
870enum ieee80211_chanctx_replace_state {
871 IEEE80211_CHANCTX_REPLACE_NONE,
872 IEEE80211_CHANCTX_WILL_BE_REPLACED,
873 IEEE80211_CHANCTX_REPLACES_OTHER,
874};
875
876struct ieee80211_chanctx {
877 struct list_head list;
878 struct rcu_head rcu_head;
879
880 struct list_head assigned_links;
881 struct list_head reserved_links;
882
883 enum ieee80211_chanctx_replace_state replace_state;
884 struct ieee80211_chanctx *replace_ctx;
885
886 enum ieee80211_chanctx_mode mode;
887 bool driver_present;
888
889 /* temporary data for search algorithm etc. */
890 struct ieee80211_chan_req req;
891
892 struct ieee80211_chanctx_conf conf;
893};
894
895struct mac80211_qos_map {
896 struct cfg80211_qos_map qos_map;
897 struct rcu_head rcu_head;
898};
899
900enum txq_info_flags {
901 IEEE80211_TXQ_STOP,
902 IEEE80211_TXQ_AMPDU,
903 IEEE80211_TXQ_NO_AMSDU,
904 IEEE80211_TXQ_DIRTY,
905};
906
907/**
908 * struct txq_info - per tid queue
909 *
910 * @tin: contains packets split into multiple flows
911 * @def_cvars: codel vars for the @tin's default_flow
912 * @cstats: code statistics for this queue
913 * @frags: used to keep fragments created after dequeue
914 * @schedule_order: used with ieee80211_local->active_txqs
915 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
916 * @flags: TXQ flags from &enum txq_info_flags
917 * @txq: the driver visible part
918 */
919struct txq_info {
920 struct fq_tin tin;
921 struct codel_vars def_cvars;
922 struct codel_stats cstats;
923
924 u16 schedule_round;
925 struct list_head schedule_order;
926
927 struct sk_buff_head frags;
928
929 unsigned long flags;
930
931 /* keep last! */
932 struct ieee80211_txq txq;
933};
934
935struct ieee80211_if_mntr {
936 u32 flags;
937 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
938
939 struct list_head list;
940};
941
942/**
943 * struct ieee80211_if_nan - NAN state
944 *
945 * @conf: current NAN configuration
946 * @func_lock: lock for @func_inst_ids
947 * @function_inst_ids: a bitmap of available instance_id's
948 */
949struct ieee80211_if_nan {
950 struct cfg80211_nan_conf conf;
951
952 /* protects function_inst_ids */
953 spinlock_t func_lock;
954 struct idr function_inst_ids;
955};
956
957struct ieee80211_link_data_managed {
958 u8 bssid[ETH_ALEN] __aligned(2);
959
960 u8 dtim_period;
961 enum ieee80211_smps_mode req_smps, /* requested smps mode */
962 driver_smps_mode; /* smps mode request */
963
964 struct ieee80211_conn_settings conn;
965
966 s16 p2p_noa_index;
967
968 bool tdls_chan_switch_prohibited;
969
970 bool have_beacon;
971 bool tracking_signal_avg;
972 bool disable_wmm_tracking;
973 bool operating_11g_mode;
974
975 bool csa_waiting_bcn;
976 bool csa_ignored_same_chan;
977 bool csa_blocked_tx;
978 struct wiphy_delayed_work chswitch_work;
979
980 struct wiphy_work request_smps_work;
981 /* used to reconfigure hardware SM PS */
982 struct wiphy_work recalc_smps;
983
984 bool beacon_crc_valid;
985 u32 beacon_crc;
986 struct ewma_beacon_signal ave_beacon_signal;
987 int last_ave_beacon_signal;
988
989 /*
990 * Number of Beacon frames used in ave_beacon_signal. This can be used
991 * to avoid generating less reliable cqm events that would be based
992 * only on couple of received frames.
993 */
994 unsigned int count_beacon_signal;
995
996 /* Number of times beacon loss was invoked. */
997 unsigned int beacon_loss_count;
998
999 /*
1000 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
1001 * that triggered a cqm event. 0 indicates that no event has been
1002 * generated for the current association.
1003 */
1004 int last_cqm_event_signal;
1005
1006 int wmm_last_param_set;
1007 int mu_edca_last_param_set;
1008
1009 u8 bss_param_ch_cnt;
1010};
1011
1012struct ieee80211_link_data_ap {
1013 struct beacon_data __rcu *beacon;
1014 struct probe_resp __rcu *probe_resp;
1015 struct fils_discovery_data __rcu *fils_discovery;
1016 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
1017
1018 /* to be used after channel switch. */
1019 struct cfg80211_beacon_data *next_beacon;
1020};
1021
1022struct ieee80211_link_data {
1023 struct ieee80211_sub_if_data *sdata;
1024 unsigned int link_id;
1025
1026 struct list_head assigned_chanctx_list; /* protected by wiphy mutex */
1027 struct list_head reserved_chanctx_list; /* protected by wiphy mutex */
1028
1029 /* multicast keys only */
1030 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
1031 NUM_DEFAULT_MGMT_KEYS +
1032 NUM_DEFAULT_BEACON_KEYS];
1033 struct ieee80211_key __rcu *default_multicast_key;
1034 struct ieee80211_key __rcu *default_mgmt_key;
1035 struct ieee80211_key __rcu *default_beacon_key;
1036
1037 struct wiphy_work csa_finalize_work;
1038
1039 bool operating_11g_mode;
1040
1041 struct ieee80211_chan_req csa_chanreq;
1042
1043 struct wiphy_work color_change_finalize_work;
1044 struct delayed_work color_collision_detect_work;
1045 u64 color_bitmap;
1046
1047 /* context reservation -- protected with wiphy mutex */
1048 struct ieee80211_chanctx *reserved_chanctx;
1049 struct ieee80211_chan_req reserved;
1050 bool reserved_radar_required;
1051 bool reserved_ready;
1052
1053 u8 needed_rx_chains;
1054 enum ieee80211_smps_mode smps_mode;
1055
1056 int user_power_level; /* in dBm */
1057 int ap_power_level; /* in dBm */
1058
1059 bool radar_required;
1060 struct wiphy_delayed_work dfs_cac_timer_work;
1061
1062 union {
1063 struct ieee80211_link_data_managed mgd;
1064 struct ieee80211_link_data_ap ap;
1065 } u;
1066
1067 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
1068
1069 struct ieee80211_bss_conf *conf;
1070
1071#ifdef CONFIG_MAC80211_DEBUGFS
1072 struct dentry *debugfs_dir;
1073#endif
1074};
1075
1076struct ieee80211_sub_if_data {
1077 struct list_head list;
1078
1079 struct wireless_dev wdev;
1080
1081 /* keys */
1082 struct list_head key_list;
1083
1084 /* count for keys needing tailroom space allocation */
1085 int crypto_tx_tailroom_needed_cnt;
1086 int crypto_tx_tailroom_pending_dec;
1087 struct wiphy_delayed_work dec_tailroom_needed_wk;
1088
1089 struct net_device *dev;
1090 struct ieee80211_local *local;
1091
1092 unsigned int flags;
1093
1094 unsigned long state;
1095
1096 bool csa_blocked_queues;
1097
1098 char name[IFNAMSIZ];
1099
1100 struct ieee80211_fragment_cache frags;
1101
1102 /* TID bitmap for NoAck policy */
1103 u16 noack_map;
1104
1105 /* bit field of ACM bits (BIT(802.1D tag)) */
1106 u8 wmm_acm;
1107
1108 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
1109 struct ieee80211_key __rcu *default_unicast_key;
1110
1111 u16 sequence_number;
1112 u16 mld_mcast_seq;
1113 __be16 control_port_protocol;
1114 bool control_port_no_encrypt;
1115 bool control_port_no_preauth;
1116 bool control_port_over_nl80211;
1117
1118 atomic_t num_tx_queued;
1119 struct mac80211_qos_map __rcu *qos_map;
1120
1121 struct wiphy_work work;
1122 struct sk_buff_head skb_queue;
1123 struct sk_buff_head status_queue;
1124
1125 /*
1126 * AP this belongs to: self in AP mode and
1127 * corresponding AP in VLAN mode, NULL for
1128 * all others (might be needed later in IBSS)
1129 */
1130 struct ieee80211_if_ap *bss;
1131
1132 /* bitmap of allowed (non-MCS) rate indexes for rate control */
1133 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1134
1135 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1136 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1137
1138 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1139 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1140
1141 /* Beacon frame (non-MCS) rate (as a bitmap) */
1142 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1143 bool beacon_rate_set;
1144
1145 union {
1146 struct ieee80211_if_ap ap;
1147 struct ieee80211_if_vlan vlan;
1148 struct ieee80211_if_managed mgd;
1149 struct ieee80211_if_ibss ibss;
1150 struct ieee80211_if_mesh mesh;
1151 struct ieee80211_if_ocb ocb;
1152 struct ieee80211_if_mntr mntr;
1153 struct ieee80211_if_nan nan;
1154 } u;
1155
1156 struct ieee80211_link_data deflink;
1157 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
1158
1159 /* for ieee80211_set_active_links_async() */
1160 struct wiphy_work activate_links_work;
1161 u16 desired_active_links;
1162
1163#ifdef CONFIG_MAC80211_DEBUGFS
1164 struct {
1165 struct dentry *subdir_stations;
1166 struct dentry *default_unicast_key;
1167 struct dentry *default_multicast_key;
1168 struct dentry *default_mgmt_key;
1169 struct dentry *default_beacon_key;
1170 } debugfs;
1171#endif
1172
1173 /* must be last, dynamically sized area in this! */
1174 struct ieee80211_vif vif;
1175};
1176
1177static inline
1178struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1179{
1180 return container_of(p, struct ieee80211_sub_if_data, vif);
1181}
1182
1183#define sdata_dereference(p, sdata) \
1184 wiphy_dereference(sdata->local->hw.wiphy, p)
1185
1186#define for_each_sdata_link(_local, _link) \
1187 /* outer loop just to define the variables ... */ \
1188 for (struct ieee80211_sub_if_data *___sdata = NULL; \
1189 !___sdata; \
1190 ___sdata = (void *)~0 /* always stop */) \
1191 list_for_each_entry(___sdata, &(_local)->interfaces, list) \
1192 if (ieee80211_sdata_running(___sdata)) \
1193 for (int ___link_id = 0; \
1194 ___link_id < ARRAY_SIZE(___sdata->link); \
1195 ___link_id++) \
1196 if ((_link = wiphy_dereference((local)->hw.wiphy, \
1197 ___sdata->link[___link_id])))
1198
1199static inline int
1200ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
1201 struct cfg80211_rnr_elems *rnr_elems,
1202 u8 i)
1203{
1204 int len = 0;
1205
1206 if (!elems || !elems->cnt || i > elems->cnt)
1207 return 0;
1208
1209 if (i < elems->cnt) {
1210 len = elems->elem[i].len;
1211 if (rnr_elems) {
1212 len += rnr_elems->elem[i].len;
1213 for (i = elems->cnt; i < rnr_elems->cnt; i++)
1214 len += rnr_elems->elem[i].len;
1215 }
1216 return len;
1217 }
1218
1219 /* i == elems->cnt, calculate total length of all MBSSID elements */
1220 for (i = 0; i < elems->cnt; i++)
1221 len += elems->elem[i].len;
1222
1223 if (rnr_elems) {
1224 for (i = 0; i < rnr_elems->cnt; i++)
1225 len += rnr_elems->elem[i].len;
1226 }
1227
1228 return len;
1229}
1230
1231enum {
1232 IEEE80211_RX_MSG = 1,
1233 IEEE80211_TX_STATUS_MSG = 2,
1234};
1235
1236enum queue_stop_reason {
1237 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1238 IEEE80211_QUEUE_STOP_REASON_PS,
1239 IEEE80211_QUEUE_STOP_REASON_CSA,
1240 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1241 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1242 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1243 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1244 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1245 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1246 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1247 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1248
1249 IEEE80211_QUEUE_STOP_REASONS,
1250};
1251
1252#ifdef CONFIG_MAC80211_LEDS
1253struct tpt_led_trigger {
1254 char name[32];
1255 const struct ieee80211_tpt_blink *blink_table;
1256 unsigned int blink_table_len;
1257 struct timer_list timer;
1258 struct ieee80211_local *local;
1259 unsigned long prev_traffic;
1260 unsigned long tx_bytes, rx_bytes;
1261 unsigned int active, want;
1262 bool running;
1263};
1264#endif
1265
1266/**
1267 * enum mac80211_scan_flags - currently active scan mode
1268 *
1269 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1270 * well be on the operating channel
1271 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1272 * determine if we are on the operating channel or not
1273 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1274 * channel. This should not interrupt normal traffic.
1275 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1276 * that the scan completed.
1277 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1278 * a scan complete for an aborted scan.
1279 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1280 * cancelled.
1281 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1282 * and could send a probe request after receiving a beacon.
1283 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1284 */
1285enum mac80211_scan_flags {
1286 SCAN_SW_SCANNING,
1287 SCAN_HW_SCANNING,
1288 SCAN_ONCHANNEL_SCANNING,
1289 SCAN_COMPLETED,
1290 SCAN_ABORTED,
1291 SCAN_HW_CANCELLED,
1292 SCAN_BEACON_WAIT,
1293 SCAN_BEACON_DONE,
1294};
1295
1296/**
1297 * enum mac80211_scan_state - scan state machine states
1298 *
1299 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1300 * determines if we should keep on scanning or switch back to the
1301 * operating channel
1302 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1303 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1304 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1305 * send out data
1306 * @SCAN_RESUME: Resume the scan and scan the next channel
1307 * @SCAN_ABORT: Abort the scan and go back to operating channel
1308 */
1309enum mac80211_scan_state {
1310 SCAN_DECISION,
1311 SCAN_SET_CHANNEL,
1312 SCAN_SEND_PROBE,
1313 SCAN_SUSPEND,
1314 SCAN_RESUME,
1315 SCAN_ABORT,
1316};
1317
1318DECLARE_STATIC_KEY_FALSE(aql_disable);
1319
1320struct ieee80211_local {
1321 /* embed the driver visible part.
1322 * don't cast (use the static inlines below), but we keep
1323 * it first anyway so they become a no-op */
1324 struct ieee80211_hw hw;
1325
1326 struct fq fq;
1327 struct codel_vars *cvars;
1328 struct codel_params cparams;
1329
1330 /* protects active_txqs and txqi->schedule_order */
1331 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1332 struct list_head active_txqs[IEEE80211_NUM_ACS];
1333 u16 schedule_round[IEEE80211_NUM_ACS];
1334
1335 /* serializes ieee80211_handle_wake_tx_queue */
1336 spinlock_t handle_wake_tx_queue_lock;
1337
1338 u16 airtime_flags;
1339 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1340 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1341 u32 aql_threshold;
1342 atomic_t aql_total_pending_airtime;
1343 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
1344
1345 const struct ieee80211_ops *ops;
1346
1347 /*
1348 * private workqueue to mac80211. mac80211 makes this accessible
1349 * via ieee80211_queue_work()
1350 */
1351 struct workqueue_struct *workqueue;
1352
1353 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1354 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1355 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1356 spinlock_t queue_stop_reason_lock;
1357
1358 int open_count;
1359 int monitors, cooked_mntrs;
1360 /* number of interfaces with corresponding FIF_ flags */
1361 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1362 fif_probe_req;
1363 bool probe_req_reg;
1364 bool rx_mcast_action_reg;
1365 unsigned int filter_flags; /* FIF_* */
1366
1367 bool wiphy_ciphers_allocated;
1368
1369 struct cfg80211_chan_def dflt_chandef;
1370 bool emulate_chanctx;
1371
1372 /* protects the aggregated multicast list and filter calls */
1373 spinlock_t filter_lock;
1374
1375 /* used for uploading changed mc list */
1376 struct wiphy_work reconfig_filter;
1377
1378 /* aggregated multicast list */
1379 struct netdev_hw_addr_list mc_list;
1380
1381 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1382
1383 /*
1384 * suspended is true if we finished all the suspend _and_ we have
1385 * not yet come up from resume. This is to be used by mac80211
1386 * to ensure driver sanity during suspend and mac80211's own
1387 * sanity. It can eventually be used for WoW as well.
1388 */
1389 bool suspended;
1390
1391 /* suspending is true during the whole suspend process */
1392 bool suspending;
1393
1394 /*
1395 * Resuming is true while suspended, but when we're reprogramming the
1396 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1397 * again even though some other parts of the stack are still suspended
1398 * and we still drop received frames to avoid waking the stack.
1399 */
1400 bool resuming;
1401
1402 /*
1403 * quiescing is true during the suspend process _only_ to
1404 * ease timer cancelling etc.
1405 */
1406 bool quiescing;
1407
1408 /* device is started */
1409 bool started;
1410
1411 /* device is during a HW reconfig */
1412 bool in_reconfig;
1413
1414 /* reconfiguration failed ... suppress some warnings etc. */
1415 bool reconfig_failure;
1416
1417 /* wowlan is enabled -- don't reconfig on resume */
1418 bool wowlan;
1419
1420 struct wiphy_work radar_detected_work;
1421
1422 /* number of RX chains the hardware has */
1423 u8 rx_chains;
1424
1425 /* bitmap of which sbands were copied */
1426 u8 sband_allocated;
1427
1428 int tx_headroom; /* required headroom for hardware/radiotap */
1429
1430 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1431 * added to skb_queue will be processed, but frames in
1432 * skb_queue_unreliable may be dropped if the total length of these
1433 * queues increases over the limit. */
1434#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1435 struct tasklet_struct tasklet;
1436 struct sk_buff_head skb_queue;
1437 struct sk_buff_head skb_queue_unreliable;
1438
1439 spinlock_t rx_path_lock;
1440
1441 /* Station data */
1442 /*
1443 * The list, hash table and counter are protected
1444 * by the wiphy mutex, reads are done with RCU.
1445 */
1446 spinlock_t tim_lock;
1447 unsigned long num_sta;
1448 struct list_head sta_list;
1449 struct rhltable sta_hash;
1450 struct rhltable link_sta_hash;
1451 struct timer_list sta_cleanup;
1452 int sta_generation;
1453
1454 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1455 struct tasklet_struct tx_pending_tasklet;
1456 struct tasklet_struct wake_txqs_tasklet;
1457
1458 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1459
1460 /* number of interfaces with allmulti RX */
1461 atomic_t iff_allmultis;
1462
1463 struct rate_control_ref *rate_ctrl;
1464
1465 struct arc4_ctx wep_tx_ctx;
1466 struct arc4_ctx wep_rx_ctx;
1467 u32 wep_iv;
1468
1469 /* see iface.c */
1470 struct list_head interfaces;
1471 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1472 struct mutex iflist_mtx;
1473
1474 /* Scanning and BSS list */
1475 unsigned long scanning;
1476 struct cfg80211_ssid scan_ssid;
1477 struct cfg80211_scan_request *int_scan_req;
1478 struct cfg80211_scan_request __rcu *scan_req;
1479 struct ieee80211_scan_request *hw_scan_req;
1480 struct cfg80211_chan_def scan_chandef;
1481 enum nl80211_band hw_scan_band;
1482 int scan_channel_idx;
1483 int scan_ies_len;
1484 int hw_scan_ies_bufsize;
1485 struct cfg80211_scan_info scan_info;
1486
1487 struct wiphy_work sched_scan_stopped_work;
1488 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1489 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1490 u8 scan_addr[ETH_ALEN];
1491
1492 unsigned long leave_oper_channel_time;
1493 enum mac80211_scan_state next_scan_state;
1494 struct wiphy_delayed_work scan_work;
1495 struct ieee80211_sub_if_data __rcu *scan_sdata;
1496
1497 /* Temporary remain-on-channel for off-channel operations */
1498 struct ieee80211_channel *tmp_channel;
1499
1500 /* channel contexts */
1501 struct list_head chanctx_list;
1502
1503#ifdef CONFIG_MAC80211_LEDS
1504 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1505 struct led_trigger tpt_led;
1506 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1507 atomic_t radio_led_active, tpt_led_active;
1508 struct tpt_led_trigger *tpt_led_trigger;
1509#endif
1510
1511#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1512 /* SNMP counters */
1513 /* dot11CountersTable */
1514 u32 dot11TransmittedFragmentCount;
1515 u32 dot11MulticastTransmittedFrameCount;
1516 u32 dot11FailedCount;
1517 u32 dot11RetryCount;
1518 u32 dot11MultipleRetryCount;
1519 u32 dot11FrameDuplicateCount;
1520 u32 dot11ReceivedFragmentCount;
1521 u32 dot11MulticastReceivedFrameCount;
1522 u32 dot11TransmittedFrameCount;
1523
1524 /* TX/RX handler statistics */
1525 unsigned int tx_handlers_drop;
1526 unsigned int tx_handlers_queued;
1527 unsigned int tx_handlers_drop_wep;
1528 unsigned int tx_handlers_drop_not_assoc;
1529 unsigned int tx_handlers_drop_unauth_port;
1530 unsigned int rx_handlers_drop;
1531 unsigned int rx_handlers_queued;
1532 unsigned int rx_handlers_drop_nullfunc;
1533 unsigned int rx_handlers_drop_defrag;
1534 unsigned int tx_expand_skb_head;
1535 unsigned int tx_expand_skb_head_cloned;
1536 unsigned int rx_expand_skb_head_defrag;
1537 unsigned int rx_handlers_fragments;
1538 unsigned int tx_status_drop;
1539#define I802_DEBUG_INC(c) (c)++
1540#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1541#define I802_DEBUG_INC(c) do { } while (0)
1542#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1543
1544
1545 int total_ps_buffered; /* total number of all buffered unicast and
1546 * multicast packets for power saving stations
1547 */
1548
1549 bool pspolling;
1550 /*
1551 * PS can only be enabled when we have exactly one managed
1552 * interface (and monitors) in PS, this then points there.
1553 */
1554 struct ieee80211_sub_if_data *ps_sdata;
1555 struct wiphy_work dynamic_ps_enable_work;
1556 struct wiphy_work dynamic_ps_disable_work;
1557 struct timer_list dynamic_ps_timer;
1558 struct notifier_block ifa_notifier;
1559 struct notifier_block ifa6_notifier;
1560
1561 /*
1562 * The dynamic ps timeout configured from user space via WEXT -
1563 * this will override whatever chosen by mac80211 internally.
1564 */
1565 int dynamic_ps_forced_timeout;
1566
1567 int user_power_level; /* in dBm, for all interfaces */
1568
1569 struct work_struct restart_work;
1570
1571#ifdef CONFIG_MAC80211_DEBUGFS
1572 struct local_debugfsdentries {
1573 struct dentry *rcdir;
1574 struct dentry *keys;
1575 } debugfs;
1576 bool force_tx_status;
1577#endif
1578
1579 /*
1580 * Remain-on-channel support
1581 */
1582 struct wiphy_delayed_work roc_work;
1583 struct list_head roc_list;
1584 struct wiphy_work hw_roc_start, hw_roc_done;
1585 unsigned long hw_roc_start_time;
1586 u64 roc_cookie_counter;
1587
1588 struct idr ack_status_frames;
1589 spinlock_t ack_status_lock;
1590
1591 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1592
1593 /* virtual monitor interface */
1594 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1595 struct ieee80211_chan_req monitor_chanreq;
1596
1597 /* extended capabilities provided by mac80211 */
1598 u8 ext_capa[8];
1599
1600 bool wbrf_supported;
1601};
1602
1603static inline struct ieee80211_sub_if_data *
1604IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1605{
1606 return netdev_priv(dev);
1607}
1608
1609static inline struct ieee80211_sub_if_data *
1610IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1611{
1612 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1613}
1614
1615static inline struct ieee80211_supported_band *
1616ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1617{
1618 struct ieee80211_local *local = sdata->local;
1619 struct ieee80211_chanctx_conf *chanctx_conf;
1620 enum nl80211_band band;
1621
1622 WARN_ON(ieee80211_vif_is_mld(&sdata->vif));
1623
1624 rcu_read_lock();
1625 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1626
1627 if (!chanctx_conf) {
1628 rcu_read_unlock();
1629 return NULL;
1630 }
1631
1632 band = chanctx_conf->def.chan->band;
1633 rcu_read_unlock();
1634
1635 return local->hw.wiphy->bands[band];
1636}
1637
1638static inline struct ieee80211_supported_band *
1639ieee80211_get_link_sband(struct ieee80211_link_data *link)
1640{
1641 struct ieee80211_local *local = link->sdata->local;
1642 struct ieee80211_chanctx_conf *chanctx_conf;
1643 enum nl80211_band band;
1644
1645 rcu_read_lock();
1646 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
1647 if (!chanctx_conf) {
1648 rcu_read_unlock();
1649 return NULL;
1650 }
1651
1652 band = chanctx_conf->def.chan->band;
1653 rcu_read_unlock();
1654
1655 return local->hw.wiphy->bands[band];
1656}
1657
1658/* this struct holds the value parsing from channel switch IE */
1659struct ieee80211_csa_ie {
1660 struct ieee80211_chan_req chanreq;
1661 u8 mode;
1662 u8 count;
1663 u8 ttl;
1664 u16 pre_value;
1665 u16 reason_code;
1666 u32 max_switch_time;
1667};
1668
1669enum ieee80211_elems_parse_error {
1670 IEEE80211_PARSE_ERR_INVALID_END = BIT(0),
1671 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1),
1672 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2),
1673 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3),
1674 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4),
1675};
1676
1677/* Parsed Information Elements */
1678struct ieee802_11_elems {
1679 const u8 *ie_start;
1680 size_t total_len;
1681 u32 crc;
1682
1683 /* pointers to IEs */
1684 const struct ieee80211_tdls_lnkie *lnk_id;
1685 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1686 const u8 *ext_capab;
1687 const u8 *ssid;
1688 const u8 *supp_rates;
1689 const u8 *ds_params;
1690 const struct ieee80211_tim_ie *tim;
1691 const u8 *rsn;
1692 const u8 *rsnx;
1693 const u8 *erp_info;
1694 const u8 *ext_supp_rates;
1695 const u8 *wmm_info;
1696 const u8 *wmm_param;
1697 const struct ieee80211_ht_cap *ht_cap_elem;
1698 const struct ieee80211_ht_operation *ht_operation;
1699 const struct ieee80211_vht_cap *vht_cap_elem;
1700 const struct ieee80211_vht_operation *vht_operation;
1701 const struct ieee80211_meshconf_ie *mesh_config;
1702 const u8 *he_cap;
1703 const struct ieee80211_he_operation *he_operation;
1704 const struct ieee80211_he_spr *he_spr;
1705 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1706 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1707 const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
1708 const u8 *uora_element;
1709 const u8 *mesh_id;
1710 const u8 *peering;
1711 const __le16 *awake_window;
1712 const u8 *preq;
1713 const u8 *prep;
1714 const u8 *perr;
1715 const struct ieee80211_rann_ie *rann;
1716 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1717 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1718 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1719 const u8 *max_channel_switch_time;
1720 const u8 *country_elem;
1721 const u8 *pwr_constr_elem;
1722 const u8 *cisco_dtpc_elem;
1723 const struct ieee80211_timeout_interval_ie *timeout_int;
1724 const u8 *opmode_notif;
1725 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1726 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1727 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1728 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1729 const struct ieee80211_bssid_index *bssid_index;
1730 u8 max_bssid_indicator;
1731 u8 dtim_count;
1732 u8 dtim_period;
1733 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1734 const struct ieee80211_s1g_cap *s1g_capab;
1735 const struct ieee80211_s1g_oper_ie *s1g_oper;
1736 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1737 const struct ieee80211_aid_response_ie *aid_resp;
1738 const struct ieee80211_eht_cap_elem *eht_cap;
1739 const struct ieee80211_eht_operation *eht_operation;
1740 const struct ieee80211_multi_link_elem *ml_basic;
1741 const struct ieee80211_multi_link_elem *ml_reconf;
1742 const struct ieee80211_bandwidth_indication *bandwidth_indication;
1743 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT];
1744
1745 /* length of them, respectively */
1746 u8 ext_capab_len;
1747 u8 ssid_len;
1748 u8 supp_rates_len;
1749 u8 tim_len;
1750 u8 rsn_len;
1751 u8 rsnx_len;
1752 u8 ext_supp_rates_len;
1753 u8 wmm_info_len;
1754 u8 wmm_param_len;
1755 u8 he_cap_len;
1756 u8 mesh_id_len;
1757 u8 peering_len;
1758 u8 preq_len;
1759 u8 prep_len;
1760 u8 perr_len;
1761 u8 country_elem_len;
1762 u8 bssid_index_len;
1763 u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
1764 u8 tx_pwr_env_num;
1765 u8 eht_cap_len;
1766
1767 /* mult-link element can be de-fragmented and thus u8 is not sufficient */
1768 size_t ml_basic_len;
1769 size_t ml_reconf_len;
1770
1771 u8 ttlm_num;
1772
1773 /*
1774 * store the per station profile pointer and length in case that the
1775 * parsing also handled Multi-Link element parsing for a specific link
1776 * ID.
1777 */
1778 struct ieee80211_mle_per_sta_profile *prof;
1779 size_t sta_prof_len;
1780
1781 /* whether/which parse error occurred while retrieving these elements */
1782 u8 parse_error;
1783};
1784
1785static inline struct ieee80211_local *hw_to_local(
1786 struct ieee80211_hw *hw)
1787{
1788 return container_of(hw, struct ieee80211_local, hw);
1789}
1790
1791static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1792{
1793 return container_of(txq, struct txq_info, txq);
1794}
1795
1796static inline bool txq_has_queue(struct ieee80211_txq *txq)
1797{
1798 struct txq_info *txqi = to_txq_info(txq);
1799
1800 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1801}
1802
1803static inline bool
1804ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1805{
1806 return status->flag & RX_FLAG_MACTIME;
1807}
1808
1809void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1810void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1811
1812/* This function returns the number of multicast stations connected to this
1813 * interface. It returns -1 if that number is not tracked, that is for netdevs
1814 * not in AP or AP_VLAN mode or when using 4addr.
1815 */
1816static inline int
1817ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1818{
1819 if (sdata->vif.type == NL80211_IFTYPE_AP)
1820 return atomic_read(&sdata->u.ap.num_mcast_sta);
1821 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1822 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1823 return -1;
1824}
1825
1826u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1827 struct ieee80211_rx_status *status,
1828 unsigned int mpdu_len,
1829 unsigned int mpdu_offset);
1830int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1831int ieee80211_hw_conf_chan(struct ieee80211_local *local);
1832void ieee80211_hw_conf_init(struct ieee80211_local *local);
1833void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1834void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1835 u64 changed);
1836void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1837 u64 changed);
1838void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1839 struct ieee80211_link_data *link,
1840 u64 changed);
1841void ieee80211_configure_filter(struct ieee80211_local *local);
1842u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1843
1844u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1845int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1846 u64 *cookie, gfp_t gfp);
1847
1848void ieee80211_check_fast_rx(struct sta_info *sta);
1849void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1850void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1851void ieee80211_clear_fast_rx(struct sta_info *sta);
1852
1853bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
1854 const u8 *addr, int *out_link_id);
1855
1856/* STA code */
1857void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1858int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1859 struct cfg80211_auth_request *req);
1860int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1861 struct cfg80211_assoc_request *req);
1862int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1863 struct cfg80211_deauth_request *req);
1864int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1865 struct cfg80211_disassoc_request *req);
1866void ieee80211_send_pspoll(struct ieee80211_local *local,
1867 struct ieee80211_sub_if_data *sdata);
1868void ieee80211_recalc_ps(struct ieee80211_local *local);
1869void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1870void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1871void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1872 struct sk_buff *skb);
1873void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1874 struct sk_buff *skb);
1875void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1876void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1877void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1878void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1879 __le16 fc, bool acked);
1880void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1881void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1882void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1883void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1884 u8 reason, bool tx);
1885void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
1886void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
1887void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link);
1888
1889/* IBSS code */
1890void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1891void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1892void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1893 const u8 *bssid, const u8 *addr, u32 supp_rates);
1894int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1895 struct cfg80211_ibss_params *params);
1896int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1897void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1898void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1899 struct sk_buff *skb);
1900int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1901 struct cfg80211_csa_settings *csa_settings,
1902 u64 *changed);
1903int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata,
1904 u64 *changed);
1905void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1906
1907/* OCB code */
1908void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1909void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1910 const u8 *bssid, const u8 *addr, u32 supp_rates);
1911void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1912int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1913 struct ocb_setup *setup);
1914int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1915
1916/* mesh code */
1917void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1918void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1919 struct sk_buff *skb);
1920int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1921 struct cfg80211_csa_settings *csa_settings,
1922 u64 *changed);
1923int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
1924 u64 *changed);
1925
1926/* scan/BSS handling */
1927void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work);
1928int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1929 const u8 *ssid, u8 ssid_len,
1930 struct ieee80211_channel **channels,
1931 unsigned int n_channels);
1932int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1933 struct cfg80211_scan_request *req);
1934void ieee80211_scan_cancel(struct ieee80211_local *local);
1935void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1936void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1937
1938void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss,
1939 const struct cfg80211_bss_ies *ies, void *data);
1940
1941void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1942struct ieee80211_bss *
1943ieee80211_bss_info_update(struct ieee80211_local *local,
1944 struct ieee80211_rx_status *rx_status,
1945 struct ieee80211_mgmt *mgmt,
1946 size_t len,
1947 struct ieee80211_channel *channel);
1948void ieee80211_rx_bss_put(struct ieee80211_local *local,
1949 struct ieee80211_bss *bss);
1950
1951/* scheduled scan handling */
1952int
1953__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1954 struct cfg80211_sched_scan_request *req);
1955int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1956 struct cfg80211_sched_scan_request *req);
1957int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1958void ieee80211_sched_scan_end(struct ieee80211_local *local);
1959void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy,
1960 struct wiphy_work *work);
1961
1962/* off-channel/mgmt-tx */
1963void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1964void ieee80211_offchannel_return(struct ieee80211_local *local);
1965void ieee80211_roc_setup(struct ieee80211_local *local);
1966void ieee80211_start_next_roc(struct ieee80211_local *local);
1967void ieee80211_roc_purge(struct ieee80211_local *local,
1968 struct ieee80211_sub_if_data *sdata);
1969int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1970 struct ieee80211_channel *chan,
1971 unsigned int duration, u64 *cookie);
1972int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1973 struct wireless_dev *wdev, u64 cookie);
1974int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1975 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1976int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1977 struct wireless_dev *wdev, u64 cookie);
1978
1979/* channel switch handling */
1980void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work);
1981int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1982 struct cfg80211_csa_settings *params);
1983
1984/* color change handling */
1985void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
1986 struct wiphy_work *work);
1987void ieee80211_color_collision_detection_work(struct work_struct *work);
1988
1989/* interface handling */
1990#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1991 NETIF_F_HW_CSUM | NETIF_F_SG | \
1992 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
1993 NETIF_F_HW_TC)
1994#define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1995#define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1996 MAC80211_SUPPORTED_FEATURES_RX)
1997
1998int ieee80211_iface_init(void);
1999void ieee80211_iface_exit(void);
2000int ieee80211_if_add(struct ieee80211_local *local, const char *name,
2001 unsigned char name_assign_type,
2002 struct wireless_dev **new_wdev, enum nl80211_iftype type,
2003 struct vif_params *params);
2004int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
2005 enum nl80211_iftype type);
2006void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
2007void ieee80211_remove_interfaces(struct ieee80211_local *local);
2008u32 ieee80211_idle_off(struct ieee80211_local *local);
2009void ieee80211_recalc_idle(struct ieee80211_local *local);
2010void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
2011 const int offset);
2012int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
2013void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
2014int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
2015void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
2016
2017bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
2018void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
2019 bool update_bss);
2020void ieee80211_recalc_offload(struct ieee80211_local *local);
2021
2022static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
2023{
2024 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
2025}
2026
2027/* link handling */
2028void ieee80211_link_setup(struct ieee80211_link_data *link);
2029void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
2030 int link_id,
2031 struct ieee80211_link_data *link,
2032 struct ieee80211_bss_conf *link_conf);
2033void ieee80211_link_stop(struct ieee80211_link_data *link);
2034int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2035 u16 new_links, u16 dormant_links);
2036static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata)
2037{
2038 ieee80211_vif_set_links(sdata, 0, 0);
2039}
2040
2041/* tx handling */
2042void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2043void ieee80211_tx_pending(struct tasklet_struct *t);
2044netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2045 struct net_device *dev);
2046netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2047 struct net_device *dev);
2048netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2049 struct net_device *dev);
2050void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2051 struct net_device *dev,
2052 u32 info_flags,
2053 u32 ctrl_flags,
2054 u64 *cookie);
2055void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
2056 struct sk_buff_head *skbs);
2057struct sk_buff *
2058ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2059 struct sk_buff *skb, u32 info_flags);
2060void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2061 int retry_count, bool send_to_cooked,
2062 struct ieee80211_tx_status *status);
2063
2064void ieee80211_check_fast_xmit(struct sta_info *sta);
2065void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2066void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2067void ieee80211_clear_fast_xmit(struct sta_info *sta);
2068int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2069 const u8 *buf, size_t len,
2070 const u8 *dest, __be16 proto, bool unencrypted,
2071 int link_id, u64 *cookie);
2072int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2073 const u8 *buf, size_t len);
2074void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
2075 struct sta_info *sta,
2076 struct ieee80211_fast_tx *fast_tx,
2077 struct sk_buff *skb, bool ampdu,
2078 const u8 *da, const u8 *sa);
2079void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
2080 struct sta_info *sta, struct sk_buff *skb);
2081
2082/* HT */
2083void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2084 struct ieee80211_sta_ht_cap *ht_cap);
2085bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2086 struct ieee80211_supported_band *sband,
2087 const struct ieee80211_ht_cap *ht_cap_ie,
2088 struct link_sta_info *link_sta);
2089void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2090 const u8 *da, u16 tid,
2091 u16 initiator, u16 reason_code);
2092int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2093 enum ieee80211_smps_mode smps, const u8 *da,
2094 const u8 *bssid, int link_id);
2095bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
2096 enum ieee80211_smps_mode smps_mode_new);
2097
2098void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2099 u16 initiator, u16 reason, bool stop);
2100void __ieee80211_start_rx_ba_session(struct sta_info *sta,
2101 u8 dialog_token, u16 timeout,
2102 u16 start_seq_num, u16 ba_policy, u16 tid,
2103 u16 buf_size, bool tx, bool auto_seq,
2104 const struct ieee80211_addba_ext_ie *addbaext);
2105void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2106 enum ieee80211_agg_stop_reason reason);
2107void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2108 struct sta_info *sta,
2109 struct ieee80211_mgmt *mgmt, size_t len);
2110void ieee80211_process_addba_resp(struct ieee80211_local *local,
2111 struct sta_info *sta,
2112 struct ieee80211_mgmt *mgmt,
2113 size_t len);
2114void ieee80211_process_addba_request(struct ieee80211_local *local,
2115 struct sta_info *sta,
2116 struct ieee80211_mgmt *mgmt,
2117 size_t len);
2118
2119int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2120 enum ieee80211_agg_stop_reason reason);
2121void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2122 struct tid_ampdu_tx *tid_tx);
2123void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2124 struct tid_ampdu_tx *tid_tx);
2125void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work);
2126void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2127void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2128
2129u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2130enum nl80211_smps_mode
2131ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2132
2133/* VHT */
2134void
2135ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2136 struct ieee80211_supported_band *sband,
2137 const struct ieee80211_vht_cap *vht_cap_ie,
2138 const struct ieee80211_vht_cap *vht_cap_ie2,
2139 struct link_sta_info *link_sta);
2140enum ieee80211_sta_rx_bandwidth
2141ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta);
2142enum ieee80211_sta_rx_bandwidth
2143ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta);
2144void ieee80211_sta_init_nss(struct link_sta_info *link_sta);
2145enum ieee80211_sta_rx_bandwidth
2146ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2147enum nl80211_chan_width
2148ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
2149void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2150 struct ieee80211_link_data *link,
2151 struct ieee80211_mgmt *mgmt);
2152u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2153 struct link_sta_info *sta,
2154 u8 opmode, enum nl80211_band band);
2155void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2156 struct link_sta_info *sta,
2157 u8 opmode, enum nl80211_band band);
2158void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2159 struct ieee80211_sta_vht_cap *vht_cap);
2160void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2161 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2162enum nl80211_chan_width
2163ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
2164
2165/* HE */
2166void
2167ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2168 struct ieee80211_supported_band *sband,
2169 const u8 *he_cap_ie, u8 he_cap_len,
2170 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2171 struct link_sta_info *link_sta);
2172void
2173ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2174 const struct ieee80211_he_spr *he_spr_ie_elem);
2175
2176void
2177ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2178 const struct ieee80211_he_operation *he_op_ie_elem);
2179
2180/* S1G */
2181void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2182bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2183void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2184 struct sk_buff *skb);
2185void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2186 struct sk_buff *skb);
2187
2188/* Spectrum management */
2189void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2190 struct ieee80211_mgmt *mgmt,
2191 size_t len);
2192/**
2193 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2194 * @sdata: the sdata of the interface which has received the frame
2195 * @elems: parsed 802.11 elements received with the frame
2196 * @current_band: indicates the current band
2197 * @vht_cap_info: VHT capabilities of the transmitter
2198 * @conn: contains information about own capabilities and restrictions
2199 * to decide which channel switch announcements can be accepted
2200 * @bssid: the currently connected bssid (for reporting)
2201 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2202 * All of them will be filled with if success only.
2203 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2204 */
2205int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2206 struct ieee802_11_elems *elems,
2207 enum nl80211_band current_band,
2208 u32 vht_cap_info,
2209 struct ieee80211_conn_settings *conn,
2210 u8 *bssid,
2211 struct ieee80211_csa_ie *csa_ie);
2212
2213/* Suspend/resume and hw reconfiguration */
2214int ieee80211_reconfig(struct ieee80211_local *local);
2215void ieee80211_stop_device(struct ieee80211_local *local);
2216
2217int __ieee80211_suspend(struct ieee80211_hw *hw,
2218 struct cfg80211_wowlan *wowlan);
2219
2220static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2221{
2222 struct ieee80211_local *local = hw_to_local(hw);
2223
2224 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2225 !test_bit(SCAN_COMPLETED, &local->scanning),
2226 "%s: resume with hardware scan still in progress\n",
2227 wiphy_name(hw->wiphy));
2228
2229 return ieee80211_reconfig(hw_to_local(hw));
2230}
2231
2232/* utility functions/constants */
2233extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2234const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode);
2235enum ieee80211_conn_bw_limit
2236ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef);
2237int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2238 int rate, int erp, int short_preamble);
2239void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2240 struct ieee80211_tx_queue_params *qparam,
2241 int ac);
2242void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
2243 bool bss_notify, bool enable_qos);
2244void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2245 struct sta_info *sta, struct sk_buff *skb);
2246
2247void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2248 struct sk_buff *skb, int tid, int link_id,
2249 enum nl80211_band band);
2250
2251/* sta_out needs to be checked for ERR_PTR() before using */
2252int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2253 struct sk_buff *skb,
2254 struct sta_info **sta_out);
2255
2256static inline void
2257ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2258 struct sk_buff *skb, int tid,
2259 enum nl80211_band band)
2260{
2261 rcu_read_lock();
2262 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band);
2263 rcu_read_unlock();
2264}
2265
2266void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2267 struct sk_buff *skb, int tid, int link_id);
2268
2269static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2270 struct sk_buff *skb)
2271{
2272 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2273 ieee80211_tx_skb_tid(sdata, skb, 7, -1);
2274}
2275
2276/**
2277 * struct ieee80211_elems_parse_params - element parsing parameters
2278 * @mode: connection mode for parsing
2279 * @start: pointer to the elements
2280 * @len: length of the elements
2281 * @action: %true if the elements came from an action frame
2282 * @filter: bitmap of element IDs to filter out while calculating
2283 * the element CRC
2284 * @crc: CRC starting value
2285 * @bss: the BSS to parse this as, for multi-BSSID cases this can
2286 * represent a non-transmitting BSS in which case the data
2287 * for that non-transmitting BSS is returned
2288 * @link_id: the link ID to parse elements for, if a STA profile
2289 * is present in the multi-link element, or -1 to ignore;
2290 * note that the code currently assumes parsing an association
2291 * (or re-association) response frame if this is given
2292 * @from_ap: frame is received from an AP (currently used only
2293 * for EHT capabilities parsing)
2294 */
2295struct ieee80211_elems_parse_params {
2296 enum ieee80211_conn_mode mode;
2297 const u8 *start;
2298 size_t len;
2299 bool action;
2300 u64 filter;
2301 u32 crc;
2302 struct cfg80211_bss *bss;
2303 int link_id;
2304 bool from_ap;
2305};
2306
2307struct ieee802_11_elems *
2308ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
2309
2310static inline struct ieee802_11_elems *
2311ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2312 u64 filter, u32 crc,
2313 struct cfg80211_bss *bss)
2314{
2315 struct ieee80211_elems_parse_params params = {
2316 .mode = IEEE80211_CONN_MODE_HIGHEST,
2317 .start = start,
2318 .len = len,
2319 .action = action,
2320 .filter = filter,
2321 .crc = crc,
2322 .bss = bss,
2323 .link_id = -1,
2324 };
2325
2326 return ieee802_11_parse_elems_full(¶ms);
2327}
2328
2329static inline struct ieee802_11_elems *
2330ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2331 struct cfg80211_bss *bss)
2332{
2333 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss);
2334}
2335
2336extern const int ieee802_1d_to_ac[8];
2337
2338static inline int ieee80211_ac_from_tid(int tid)
2339{
2340 return ieee802_1d_to_ac[tid & 7];
2341}
2342
2343void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy,
2344 struct wiphy_work *work);
2345void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy,
2346 struct wiphy_work *work);
2347void ieee80211_dynamic_ps_timer(struct timer_list *t);
2348void ieee80211_send_nullfunc(struct ieee80211_local *local,
2349 struct ieee80211_sub_if_data *sdata,
2350 bool powersave);
2351void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2352 struct ieee80211_sub_if_data *sdata);
2353void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2354 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2355
2356void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2357 unsigned long queues,
2358 enum queue_stop_reason reason,
2359 bool refcounted);
2360void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2361 struct ieee80211_sub_if_data *sdata,
2362 enum queue_stop_reason reason);
2363void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2364 struct ieee80211_sub_if_data *sdata,
2365 enum queue_stop_reason reason);
2366void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2367 unsigned long queues,
2368 enum queue_stop_reason reason,
2369 bool refcounted);
2370void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2371 enum queue_stop_reason reason,
2372 bool refcounted);
2373void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2374 enum queue_stop_reason reason,
2375 bool refcounted);
2376void ieee80211_add_pending_skb(struct ieee80211_local *local,
2377 struct sk_buff *skb);
2378void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2379 struct sk_buff_head *skbs);
2380void ieee80211_flush_queues(struct ieee80211_local *local,
2381 struct ieee80211_sub_if_data *sdata, bool drop);
2382void __ieee80211_flush_queues(struct ieee80211_local *local,
2383 struct ieee80211_sub_if_data *sdata,
2384 unsigned int queues, bool drop);
2385
2386static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2387{
2388 /*
2389 * It's unsafe to try to do any work during reconfigure flow.
2390 * When the flow ends the work will be requeued.
2391 */
2392 if (local->in_reconfig)
2393 return false;
2394
2395 /*
2396 * If quiescing is set, we are racing with __ieee80211_suspend.
2397 * __ieee80211_suspend flushes the workers after setting quiescing,
2398 * and we check quiescing / suspended before enqueing new workers.
2399 * We should abort the worker to avoid the races below.
2400 */
2401 if (local->quiescing)
2402 return false;
2403
2404 /*
2405 * We might already be suspended if the following scenario occurs:
2406 * __ieee80211_suspend Control path
2407 *
2408 * if (local->quiescing)
2409 * return;
2410 * local->quiescing = true;
2411 * flush_workqueue();
2412 * queue_work(...);
2413 * local->suspended = true;
2414 * local->quiescing = false;
2415 * worker starts running...
2416 */
2417 if (local->suspended)
2418 return false;
2419
2420 return true;
2421}
2422
2423int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2424void ieee80211_txq_set_params(struct ieee80211_local *local);
2425void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2426void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2427 struct sta_info *sta,
2428 struct txq_info *txq, int tid);
2429void ieee80211_txq_purge(struct ieee80211_local *local,
2430 struct txq_info *txqi);
2431void ieee80211_purge_sta_txqs(struct sta_info *sta);
2432void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2433 struct ieee80211_sub_if_data *sdata);
2434void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2435 struct txq_info *txqi);
2436void ieee80211_wake_txqs(struct tasklet_struct *t);
2437void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2438 u16 transaction, u16 auth_alg, u16 status,
2439 const u8 *extra, size_t extra_len, const u8 *bssid,
2440 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2441 u32 tx_flags);
2442void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2443 const u8 *da, const u8 *bssid,
2444 u16 stype, u16 reason,
2445 bool send_frame, u8 *frame_buf);
2446
2447enum {
2448 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2449 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2450 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2451};
2452
2453int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2454 size_t buffer_len,
2455 struct ieee80211_scan_ies *ie_desc,
2456 const u8 *ie, size_t ie_len,
2457 u8 bands_used, u32 *rate_masks,
2458 struct cfg80211_chan_def *chandef,
2459 u32 flags);
2460struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2461 const u8 *src, const u8 *dst,
2462 u32 ratemask,
2463 struct ieee80211_channel *chan,
2464 const u8 *ssid, size_t ssid_len,
2465 const u8 *ie, size_t ie_len,
2466 u32 flags);
2467u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2468 struct ieee802_11_elems *elems,
2469 enum nl80211_band band, u32 *basic_rates);
2470int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2471 struct ieee80211_link_data *link,
2472 enum ieee80211_smps_mode smps_mode);
2473void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2474 struct ieee80211_link_data *link);
2475void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2476 int link_id);
2477
2478size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2479u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2480 u16 cap);
2481u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2482 const struct cfg80211_chan_def *chandef,
2483 u16 prot_mode, bool rifs_mode);
2484void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2485 const struct cfg80211_chan_def *chandef);
2486u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2487 u32 cap);
2488u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2489 const struct cfg80211_chan_def *chandef);
2490u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata);
2491u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2492u8 *ieee80211_ie_build_eht_oper(u8 *pos, struct cfg80211_chan_def *chandef,
2493 const struct ieee80211_sta_eht_cap *eht_cap);
2494int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2495 const struct ieee80211_supported_band *sband,
2496 const u8 *srates, int srates_len, u32 *rates);
2497u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2498void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2499 struct ieee80211_sta_s1g_cap *caps,
2500 struct sk_buff *skb);
2501void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2502 struct sk_buff *skb);
2503
2504/* element building in SKBs */
2505int ieee80211_put_srates_elem(struct sk_buff *skb,
2506 const struct ieee80211_supported_band *sband,
2507 u32 basic_rates, u32 rate_flags, u32 masked_rates,
2508 u8 element_id);
2509int ieee80211_put_he_cap(struct sk_buff *skb,
2510 struct ieee80211_sub_if_data *sdata,
2511 const struct ieee80211_supported_band *sband,
2512 const struct ieee80211_conn_settings *conn);
2513int ieee80211_put_he_6ghz_cap(struct sk_buff *skb,
2514 struct ieee80211_sub_if_data *sdata,
2515 enum ieee80211_smps_mode smps_mode);
2516int ieee80211_put_eht_cap(struct sk_buff *skb,
2517 struct ieee80211_sub_if_data *sdata,
2518 const struct ieee80211_supported_band *sband,
2519 const struct ieee80211_conn_settings *conn);
2520
2521/* channel management */
2522bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2523 struct cfg80211_chan_def *chandef);
2524bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2525 const struct ieee80211_vht_operation *oper,
2526 const struct ieee80211_ht_operation *htop,
2527 struct cfg80211_chan_def *chandef);
2528void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info,
2529 struct cfg80211_chan_def *chandef);
2530bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local,
2531 const struct ieee80211_he_operation *he_oper,
2532 const struct ieee80211_eht_operation *eht_oper,
2533 struct cfg80211_chan_def *chandef);
2534bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2535 struct cfg80211_chan_def *chandef);
2536void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef,
2537 struct ieee80211_conn_settings *conn);
2538static inline void
2539ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq,
2540 struct ieee80211_conn_settings *conn)
2541{
2542 ieee80211_chandef_downgrade(&chanreq->oper, conn);
2543 if (WARN_ON(!conn))
2544 return;
2545 if (conn->mode < IEEE80211_CONN_MODE_EHT)
2546 chanreq->ap.chan = NULL;
2547}
2548
2549bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a,
2550 const struct ieee80211_chan_req *b);
2551
2552int __must_check
2553ieee80211_link_use_channel(struct ieee80211_link_data *link,
2554 const struct ieee80211_chan_req *req,
2555 enum ieee80211_chanctx_mode mode);
2556int __must_check
2557ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2558 const struct ieee80211_chan_req *req,
2559 enum ieee80211_chanctx_mode mode,
2560 bool radar_required);
2561int __must_check
2562ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2563int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2564
2565int __must_check
2566ieee80211_link_change_chanreq(struct ieee80211_link_data *link,
2567 const struct ieee80211_chan_req *req,
2568 u64 *changed);
2569void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2570void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2571void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2572 bool clear);
2573int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2574 struct ieee80211_chanctx *ctx);
2575
2576void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2577 struct ieee80211_chanctx *chanctx);
2578void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2579 struct ieee80211_chanctx *ctx,
2580 struct ieee80211_link_data *rsvd_for);
2581bool ieee80211_is_radar_required(struct ieee80211_local *local);
2582
2583void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work);
2584void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2585void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy,
2586 struct wiphy_work *work);
2587int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2588 struct cfg80211_csa_settings *csa_settings);
2589
2590void ieee80211_recalc_dtim(struct ieee80211_local *local,
2591 struct ieee80211_sub_if_data *sdata);
2592int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2593 const struct cfg80211_chan_def *chandef,
2594 enum ieee80211_chanctx_mode chanmode,
2595 u8 radar_detect);
2596int ieee80211_max_num_channels(struct ieee80211_local *local);
2597void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2598 struct ieee80211_chanctx *ctx);
2599
2600/* TDLS */
2601int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2602 const u8 *peer, int link_id,
2603 u8 action_code, u8 dialog_token, u16 status_code,
2604 u32 peer_capability, bool initiator,
2605 const u8 *extra_ies, size_t extra_ies_len);
2606int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2607 const u8 *peer, enum nl80211_tdls_operation oper);
2608void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk);
2609int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2610 const u8 *addr, u8 oper_class,
2611 struct cfg80211_chan_def *chandef);
2612void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2613 struct net_device *dev,
2614 const u8 *addr);
2615void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link);
2616void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2617 const u8 *peer, u16 reason);
2618void
2619ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2620 struct sk_buff *skb);
2621
2622
2623const char *ieee80211_get_reason_code_string(u16 reason_code);
2624u16 ieee80211_encode_usf(int val);
2625u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2626 enum nl80211_iftype type);
2627
2628extern const struct ethtool_ops ieee80211_ethtool_ops;
2629
2630u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2631 struct ieee80211_vif *vif,
2632 struct ieee80211_sta *pubsta,
2633 int len, bool ampdu);
2634#ifdef CONFIG_MAC80211_NOINLINE
2635#define debug_noinline noinline
2636#else
2637#define debug_noinline
2638#endif
2639
2640void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2641void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2642
2643u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata);
2644
2645void
2646ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2647 struct ieee80211_supported_band *sband,
2648 const u8 *he_cap_ie, u8 he_cap_len,
2649 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2650 u8 eht_cap_len,
2651 struct link_sta_info *link_sta);
2652void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata,
2653 struct ieee80211_mgmt *mgmt, size_t len);
2654void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata,
2655 struct ieee80211_mgmt *mgmt, size_t len);
2656int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata,
2657 struct cfg80211_ttlm_params *params);
2658
2659void ieee80211_check_wbrf_support(struct ieee80211_local *local);
2660void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2661void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2662
2663#if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST)
2664#define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym)
2665#define VISIBLE_IF_MAC80211_KUNIT
2666ieee80211_rx_result
2667ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx);
2668#else
2669#define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym)
2670#define VISIBLE_IF_MAC80211_KUNIT static
2671#endif
2672
2673#endif /* IEEE80211_I_H */