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 struct wiphy_delayed_work chswitch_work;
978
979 struct wiphy_work request_smps_work;
980 /* used to reconfigure hardware SM PS */
981 struct wiphy_work recalc_smps;
982
983 bool beacon_crc_valid;
984 u32 beacon_crc;
985 struct ewma_beacon_signal ave_beacon_signal;
986 int last_ave_beacon_signal;
987
988 /*
989 * Number of Beacon frames used in ave_beacon_signal. This can be used
990 * to avoid generating less reliable cqm events that would be based
991 * only on couple of received frames.
992 */
993 unsigned int count_beacon_signal;
994
995 /* Number of times beacon loss was invoked. */
996 unsigned int beacon_loss_count;
997
998 /*
999 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
1000 * that triggered a cqm event. 0 indicates that no event has been
1001 * generated for the current association.
1002 */
1003 int last_cqm_event_signal;
1004
1005 int wmm_last_param_set;
1006 int mu_edca_last_param_set;
1007
1008 u8 bss_param_ch_cnt;
1009};
1010
1011struct ieee80211_link_data_ap {
1012 struct beacon_data __rcu *beacon;
1013 struct probe_resp __rcu *probe_resp;
1014 struct fils_discovery_data __rcu *fils_discovery;
1015 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
1016
1017 /* to be used after channel switch. */
1018 struct cfg80211_beacon_data *next_beacon;
1019};
1020
1021struct ieee80211_link_data {
1022 struct ieee80211_sub_if_data *sdata;
1023 unsigned int link_id;
1024
1025 struct list_head assigned_chanctx_list; /* protected by wiphy mutex */
1026 struct list_head reserved_chanctx_list; /* protected by wiphy mutex */
1027
1028 /* multicast keys only */
1029 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
1030 NUM_DEFAULT_MGMT_KEYS +
1031 NUM_DEFAULT_BEACON_KEYS];
1032 struct ieee80211_key __rcu *default_multicast_key;
1033 struct ieee80211_key __rcu *default_mgmt_key;
1034 struct ieee80211_key __rcu *default_beacon_key;
1035
1036 struct wiphy_work csa_finalize_work;
1037
1038 bool operating_11g_mode;
1039
1040 struct ieee80211_chan_req csa_chanreq;
1041
1042 struct wiphy_work color_change_finalize_work;
1043 struct delayed_work color_collision_detect_work;
1044 u64 color_bitmap;
1045
1046 /* context reservation -- protected with wiphy mutex */
1047 struct ieee80211_chanctx *reserved_chanctx;
1048 struct ieee80211_chan_req reserved;
1049 bool reserved_radar_required;
1050 bool reserved_ready;
1051
1052 u8 needed_rx_chains;
1053 enum ieee80211_smps_mode smps_mode;
1054
1055 int user_power_level; /* in dBm */
1056 int ap_power_level; /* in dBm */
1057
1058 bool radar_required;
1059 struct wiphy_delayed_work dfs_cac_timer_work;
1060
1061 union {
1062 struct ieee80211_link_data_managed mgd;
1063 struct ieee80211_link_data_ap ap;
1064 } u;
1065
1066 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
1067
1068 struct ieee80211_bss_conf *conf;
1069
1070#ifdef CONFIG_MAC80211_DEBUGFS
1071 struct dentry *debugfs_dir;
1072#endif
1073};
1074
1075struct ieee80211_sub_if_data {
1076 struct list_head list;
1077
1078 struct wireless_dev wdev;
1079
1080 /* keys */
1081 struct list_head key_list;
1082
1083 /* count for keys needing tailroom space allocation */
1084 int crypto_tx_tailroom_needed_cnt;
1085 int crypto_tx_tailroom_pending_dec;
1086 struct wiphy_delayed_work dec_tailroom_needed_wk;
1087
1088 struct net_device *dev;
1089 struct ieee80211_local *local;
1090
1091 unsigned int flags;
1092
1093 unsigned long state;
1094
1095 bool csa_blocked_tx;
1096
1097 char name[IFNAMSIZ];
1098
1099 struct ieee80211_fragment_cache frags;
1100
1101 /* TID bitmap for NoAck policy */
1102 u16 noack_map;
1103
1104 /* bit field of ACM bits (BIT(802.1D tag)) */
1105 u8 wmm_acm;
1106
1107 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
1108 struct ieee80211_key __rcu *default_unicast_key;
1109
1110 u16 sequence_number;
1111 u16 mld_mcast_seq;
1112 __be16 control_port_protocol;
1113 bool control_port_no_encrypt;
1114 bool control_port_no_preauth;
1115 bool control_port_over_nl80211;
1116
1117 atomic_t num_tx_queued;
1118 struct mac80211_qos_map __rcu *qos_map;
1119
1120 struct wiphy_work work;
1121 struct sk_buff_head skb_queue;
1122 struct sk_buff_head status_queue;
1123
1124 /*
1125 * AP this belongs to: self in AP mode and
1126 * corresponding AP in VLAN mode, NULL for
1127 * all others (might be needed later in IBSS)
1128 */
1129 struct ieee80211_if_ap *bss;
1130
1131 /* bitmap of allowed (non-MCS) rate indexes for rate control */
1132 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1133
1134 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1135 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1136
1137 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1138 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1139
1140 /* Beacon frame (non-MCS) rate (as a bitmap) */
1141 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1142 bool beacon_rate_set;
1143
1144 union {
1145 struct ieee80211_if_ap ap;
1146 struct ieee80211_if_vlan vlan;
1147 struct ieee80211_if_managed mgd;
1148 struct ieee80211_if_ibss ibss;
1149 struct ieee80211_if_mesh mesh;
1150 struct ieee80211_if_ocb ocb;
1151 struct ieee80211_if_mntr mntr;
1152 struct ieee80211_if_nan nan;
1153 } u;
1154
1155 struct ieee80211_link_data deflink;
1156 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
1157
1158 /* for ieee80211_set_active_links_async() */
1159 struct wiphy_work activate_links_work;
1160 u16 desired_active_links;
1161
1162#ifdef CONFIG_MAC80211_DEBUGFS
1163 struct {
1164 struct dentry *subdir_stations;
1165 struct dentry *default_unicast_key;
1166 struct dentry *default_multicast_key;
1167 struct dentry *default_mgmt_key;
1168 struct dentry *default_beacon_key;
1169 } debugfs;
1170#endif
1171
1172 /* must be last, dynamically sized area in this! */
1173 struct ieee80211_vif vif;
1174};
1175
1176static inline
1177struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1178{
1179 return container_of(p, struct ieee80211_sub_if_data, vif);
1180}
1181
1182#define sdata_dereference(p, sdata) \
1183 wiphy_dereference(sdata->local->hw.wiphy, p)
1184
1185#define for_each_sdata_link(_local, _link) \
1186 /* outer loop just to define the variables ... */ \
1187 for (struct ieee80211_sub_if_data *___sdata = NULL; \
1188 !___sdata; \
1189 ___sdata = (void *)~0 /* always stop */) \
1190 list_for_each_entry(___sdata, &(_local)->interfaces, list) \
1191 if (ieee80211_sdata_running(___sdata)) \
1192 for (int ___link_id = 0; \
1193 ___link_id < ARRAY_SIZE(___sdata->link); \
1194 ___link_id++) \
1195 if ((_link = wiphy_dereference((local)->hw.wiphy, \
1196 ___sdata->link[___link_id])))
1197
1198static inline int
1199ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
1200 struct cfg80211_rnr_elems *rnr_elems,
1201 u8 i)
1202{
1203 int len = 0;
1204
1205 if (!elems || !elems->cnt || i > elems->cnt)
1206 return 0;
1207
1208 if (i < elems->cnt) {
1209 len = elems->elem[i].len;
1210 if (rnr_elems) {
1211 len += rnr_elems->elem[i].len;
1212 for (i = elems->cnt; i < rnr_elems->cnt; i++)
1213 len += rnr_elems->elem[i].len;
1214 }
1215 return len;
1216 }
1217
1218 /* i == elems->cnt, calculate total length of all MBSSID elements */
1219 for (i = 0; i < elems->cnt; i++)
1220 len += elems->elem[i].len;
1221
1222 if (rnr_elems) {
1223 for (i = 0; i < rnr_elems->cnt; i++)
1224 len += rnr_elems->elem[i].len;
1225 }
1226
1227 return len;
1228}
1229
1230enum {
1231 IEEE80211_RX_MSG = 1,
1232 IEEE80211_TX_STATUS_MSG = 2,
1233};
1234
1235enum queue_stop_reason {
1236 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1237 IEEE80211_QUEUE_STOP_REASON_PS,
1238 IEEE80211_QUEUE_STOP_REASON_CSA,
1239 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1240 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1241 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1242 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1243 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1244 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1245 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1246 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1247
1248 IEEE80211_QUEUE_STOP_REASONS,
1249};
1250
1251#ifdef CONFIG_MAC80211_LEDS
1252struct tpt_led_trigger {
1253 char name[32];
1254 const struct ieee80211_tpt_blink *blink_table;
1255 unsigned int blink_table_len;
1256 struct timer_list timer;
1257 struct ieee80211_local *local;
1258 unsigned long prev_traffic;
1259 unsigned long tx_bytes, rx_bytes;
1260 unsigned int active, want;
1261 bool running;
1262};
1263#endif
1264
1265/**
1266 * enum mac80211_scan_flags - currently active scan mode
1267 *
1268 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1269 * well be on the operating channel
1270 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1271 * determine if we are on the operating channel or not
1272 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1273 * channel. This should not interrupt normal traffic.
1274 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1275 * that the scan completed.
1276 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1277 * a scan complete for an aborted scan.
1278 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1279 * cancelled.
1280 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1281 * and could send a probe request after receiving a beacon.
1282 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1283 */
1284enum mac80211_scan_flags {
1285 SCAN_SW_SCANNING,
1286 SCAN_HW_SCANNING,
1287 SCAN_ONCHANNEL_SCANNING,
1288 SCAN_COMPLETED,
1289 SCAN_ABORTED,
1290 SCAN_HW_CANCELLED,
1291 SCAN_BEACON_WAIT,
1292 SCAN_BEACON_DONE,
1293};
1294
1295/**
1296 * enum mac80211_scan_state - scan state machine states
1297 *
1298 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1299 * determines if we should keep on scanning or switch back to the
1300 * operating channel
1301 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1302 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1303 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1304 * send out data
1305 * @SCAN_RESUME: Resume the scan and scan the next channel
1306 * @SCAN_ABORT: Abort the scan and go back to operating channel
1307 */
1308enum mac80211_scan_state {
1309 SCAN_DECISION,
1310 SCAN_SET_CHANNEL,
1311 SCAN_SEND_PROBE,
1312 SCAN_SUSPEND,
1313 SCAN_RESUME,
1314 SCAN_ABORT,
1315};
1316
1317DECLARE_STATIC_KEY_FALSE(aql_disable);
1318
1319struct ieee80211_local {
1320 /* embed the driver visible part.
1321 * don't cast (use the static inlines below), but we keep
1322 * it first anyway so they become a no-op */
1323 struct ieee80211_hw hw;
1324
1325 struct fq fq;
1326 struct codel_vars *cvars;
1327 struct codel_params cparams;
1328
1329 /* protects active_txqs and txqi->schedule_order */
1330 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1331 struct list_head active_txqs[IEEE80211_NUM_ACS];
1332 u16 schedule_round[IEEE80211_NUM_ACS];
1333
1334 /* serializes ieee80211_handle_wake_tx_queue */
1335 spinlock_t handle_wake_tx_queue_lock;
1336
1337 u16 airtime_flags;
1338 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1339 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1340 u32 aql_threshold;
1341 atomic_t aql_total_pending_airtime;
1342 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
1343
1344 const struct ieee80211_ops *ops;
1345
1346 /*
1347 * private workqueue to mac80211. mac80211 makes this accessible
1348 * via ieee80211_queue_work()
1349 */
1350 struct workqueue_struct *workqueue;
1351
1352 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1353 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1354 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1355 spinlock_t queue_stop_reason_lock;
1356
1357 int open_count;
1358 int monitors, cooked_mntrs;
1359 /* number of interfaces with corresponding FIF_ flags */
1360 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1361 fif_probe_req;
1362 bool probe_req_reg;
1363 bool rx_mcast_action_reg;
1364 unsigned int filter_flags; /* FIF_* */
1365
1366 bool wiphy_ciphers_allocated;
1367
1368 struct cfg80211_chan_def dflt_chandef;
1369 bool emulate_chanctx;
1370
1371 /* protects the aggregated multicast list and filter calls */
1372 spinlock_t filter_lock;
1373
1374 /* used for uploading changed mc list */
1375 struct wiphy_work reconfig_filter;
1376
1377 /* aggregated multicast list */
1378 struct netdev_hw_addr_list mc_list;
1379
1380 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1381
1382 /*
1383 * suspended is true if we finished all the suspend _and_ we have
1384 * not yet come up from resume. This is to be used by mac80211
1385 * to ensure driver sanity during suspend and mac80211's own
1386 * sanity. It can eventually be used for WoW as well.
1387 */
1388 bool suspended;
1389
1390 /* suspending is true during the whole suspend process */
1391 bool suspending;
1392
1393 /*
1394 * Resuming is true while suspended, but when we're reprogramming the
1395 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1396 * again even though some other parts of the stack are still suspended
1397 * and we still drop received frames to avoid waking the stack.
1398 */
1399 bool resuming;
1400
1401 /*
1402 * quiescing is true during the suspend process _only_ to
1403 * ease timer cancelling etc.
1404 */
1405 bool quiescing;
1406
1407 /* device is started */
1408 bool started;
1409
1410 /* device is during a HW reconfig */
1411 bool in_reconfig;
1412
1413 /* reconfiguration failed ... suppress some warnings etc. */
1414 bool reconfig_failure;
1415
1416 /* wowlan is enabled -- don't reconfig on resume */
1417 bool wowlan;
1418
1419 struct wiphy_work radar_detected_work;
1420
1421 /* number of RX chains the hardware has */
1422 u8 rx_chains;
1423
1424 /* bitmap of which sbands were copied */
1425 u8 sband_allocated;
1426
1427 int tx_headroom; /* required headroom for hardware/radiotap */
1428
1429 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1430 * added to skb_queue will be processed, but frames in
1431 * skb_queue_unreliable may be dropped if the total length of these
1432 * queues increases over the limit. */
1433#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1434 struct tasklet_struct tasklet;
1435 struct sk_buff_head skb_queue;
1436 struct sk_buff_head skb_queue_unreliable;
1437
1438 spinlock_t rx_path_lock;
1439
1440 /* Station data */
1441 /*
1442 * The list, hash table and counter are protected
1443 * by the wiphy mutex, reads are done with RCU.
1444 */
1445 spinlock_t tim_lock;
1446 unsigned long num_sta;
1447 struct list_head sta_list;
1448 struct rhltable sta_hash;
1449 struct rhltable link_sta_hash;
1450 struct timer_list sta_cleanup;
1451 int sta_generation;
1452
1453 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1454 struct tasklet_struct tx_pending_tasklet;
1455 struct tasklet_struct wake_txqs_tasklet;
1456
1457 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1458
1459 /* number of interfaces with allmulti RX */
1460 atomic_t iff_allmultis;
1461
1462 struct rate_control_ref *rate_ctrl;
1463
1464 struct arc4_ctx wep_tx_ctx;
1465 struct arc4_ctx wep_rx_ctx;
1466 u32 wep_iv;
1467
1468 /* see iface.c */
1469 struct list_head interfaces;
1470 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1471 struct mutex iflist_mtx;
1472
1473 /* Scanning and BSS list */
1474 unsigned long scanning;
1475 struct cfg80211_ssid scan_ssid;
1476 struct cfg80211_scan_request *int_scan_req;
1477 struct cfg80211_scan_request __rcu *scan_req;
1478 struct ieee80211_scan_request *hw_scan_req;
1479 struct cfg80211_chan_def scan_chandef;
1480 enum nl80211_band hw_scan_band;
1481 int scan_channel_idx;
1482 int scan_ies_len;
1483 int hw_scan_ies_bufsize;
1484 struct cfg80211_scan_info scan_info;
1485
1486 struct wiphy_work sched_scan_stopped_work;
1487 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1488 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1489 u8 scan_addr[ETH_ALEN];
1490
1491 unsigned long leave_oper_channel_time;
1492 enum mac80211_scan_state next_scan_state;
1493 struct wiphy_delayed_work scan_work;
1494 struct ieee80211_sub_if_data __rcu *scan_sdata;
1495
1496 /* Temporary remain-on-channel for off-channel operations */
1497 struct ieee80211_channel *tmp_channel;
1498
1499 /* channel contexts */
1500 struct list_head chanctx_list;
1501
1502#ifdef CONFIG_MAC80211_LEDS
1503 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1504 struct led_trigger tpt_led;
1505 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1506 atomic_t radio_led_active, tpt_led_active;
1507 struct tpt_led_trigger *tpt_led_trigger;
1508#endif
1509
1510#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1511 /* SNMP counters */
1512 /* dot11CountersTable */
1513 u32 dot11TransmittedFragmentCount;
1514 u32 dot11MulticastTransmittedFrameCount;
1515 u32 dot11FailedCount;
1516 u32 dot11RetryCount;
1517 u32 dot11MultipleRetryCount;
1518 u32 dot11FrameDuplicateCount;
1519 u32 dot11ReceivedFragmentCount;
1520 u32 dot11MulticastReceivedFrameCount;
1521 u32 dot11TransmittedFrameCount;
1522
1523 /* TX/RX handler statistics */
1524 unsigned int tx_handlers_drop;
1525 unsigned int tx_handlers_queued;
1526 unsigned int tx_handlers_drop_wep;
1527 unsigned int tx_handlers_drop_not_assoc;
1528 unsigned int tx_handlers_drop_unauth_port;
1529 unsigned int rx_handlers_drop;
1530 unsigned int rx_handlers_queued;
1531 unsigned int rx_handlers_drop_nullfunc;
1532 unsigned int rx_handlers_drop_defrag;
1533 unsigned int tx_expand_skb_head;
1534 unsigned int tx_expand_skb_head_cloned;
1535 unsigned int rx_expand_skb_head_defrag;
1536 unsigned int rx_handlers_fragments;
1537 unsigned int tx_status_drop;
1538#define I802_DEBUG_INC(c) (c)++
1539#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1540#define I802_DEBUG_INC(c) do { } while (0)
1541#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1542
1543
1544 int total_ps_buffered; /* total number of all buffered unicast and
1545 * multicast packets for power saving stations
1546 */
1547
1548 bool pspolling;
1549 /*
1550 * PS can only be enabled when we have exactly one managed
1551 * interface (and monitors) in PS, this then points there.
1552 */
1553 struct ieee80211_sub_if_data *ps_sdata;
1554 struct wiphy_work dynamic_ps_enable_work;
1555 struct wiphy_work dynamic_ps_disable_work;
1556 struct timer_list dynamic_ps_timer;
1557 struct notifier_block ifa_notifier;
1558 struct notifier_block ifa6_notifier;
1559
1560 /*
1561 * The dynamic ps timeout configured from user space via WEXT -
1562 * this will override whatever chosen by mac80211 internally.
1563 */
1564 int dynamic_ps_forced_timeout;
1565
1566 int user_power_level; /* in dBm, for all interfaces */
1567
1568 struct work_struct restart_work;
1569
1570#ifdef CONFIG_MAC80211_DEBUGFS
1571 struct local_debugfsdentries {
1572 struct dentry *rcdir;
1573 struct dentry *keys;
1574 } debugfs;
1575 bool force_tx_status;
1576#endif
1577
1578 /*
1579 * Remain-on-channel support
1580 */
1581 struct wiphy_delayed_work roc_work;
1582 struct list_head roc_list;
1583 struct wiphy_work hw_roc_start, hw_roc_done;
1584 unsigned long hw_roc_start_time;
1585 u64 roc_cookie_counter;
1586
1587 struct idr ack_status_frames;
1588 spinlock_t ack_status_lock;
1589
1590 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1591
1592 /* virtual monitor interface */
1593 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1594 struct ieee80211_chan_req monitor_chanreq;
1595
1596 /* extended capabilities provided by mac80211 */
1597 u8 ext_capa[8];
1598
1599 bool wbrf_supported;
1600};
1601
1602static inline struct ieee80211_sub_if_data *
1603IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1604{
1605 return netdev_priv(dev);
1606}
1607
1608static inline struct ieee80211_sub_if_data *
1609IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1610{
1611 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1612}
1613
1614static inline struct ieee80211_supported_band *
1615ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1616{
1617 struct ieee80211_local *local = sdata->local;
1618 struct ieee80211_chanctx_conf *chanctx_conf;
1619 enum nl80211_band band;
1620
1621 WARN_ON(ieee80211_vif_is_mld(&sdata->vif));
1622
1623 rcu_read_lock();
1624 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1625
1626 if (!chanctx_conf) {
1627 rcu_read_unlock();
1628 return NULL;
1629 }
1630
1631 band = chanctx_conf->def.chan->band;
1632 rcu_read_unlock();
1633
1634 return local->hw.wiphy->bands[band];
1635}
1636
1637static inline struct ieee80211_supported_band *
1638ieee80211_get_link_sband(struct ieee80211_link_data *link)
1639{
1640 struct ieee80211_local *local = link->sdata->local;
1641 struct ieee80211_chanctx_conf *chanctx_conf;
1642 enum nl80211_band band;
1643
1644 rcu_read_lock();
1645 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
1646 if (!chanctx_conf) {
1647 rcu_read_unlock();
1648 return NULL;
1649 }
1650
1651 band = chanctx_conf->def.chan->band;
1652 rcu_read_unlock();
1653
1654 return local->hw.wiphy->bands[band];
1655}
1656
1657/* this struct holds the value parsing from channel switch IE */
1658struct ieee80211_csa_ie {
1659 struct ieee80211_chan_req chanreq;
1660 u8 mode;
1661 u8 count;
1662 u8 ttl;
1663 u16 pre_value;
1664 u16 reason_code;
1665 u32 max_switch_time;
1666};
1667
1668enum ieee80211_elems_parse_error {
1669 IEEE80211_PARSE_ERR_INVALID_END = BIT(0),
1670 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1),
1671 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2),
1672 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3),
1673 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4),
1674};
1675
1676/* Parsed Information Elements */
1677struct ieee802_11_elems {
1678 const u8 *ie_start;
1679 size_t total_len;
1680 u32 crc;
1681
1682 /* pointers to IEs */
1683 const struct ieee80211_tdls_lnkie *lnk_id;
1684 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1685 const u8 *ext_capab;
1686 const u8 *ssid;
1687 const u8 *supp_rates;
1688 const u8 *ds_params;
1689 const struct ieee80211_tim_ie *tim;
1690 const u8 *rsn;
1691 const u8 *rsnx;
1692 const u8 *erp_info;
1693 const u8 *ext_supp_rates;
1694 const u8 *wmm_info;
1695 const u8 *wmm_param;
1696 const struct ieee80211_ht_cap *ht_cap_elem;
1697 const struct ieee80211_ht_operation *ht_operation;
1698 const struct ieee80211_vht_cap *vht_cap_elem;
1699 const struct ieee80211_vht_operation *vht_operation;
1700 const struct ieee80211_meshconf_ie *mesh_config;
1701 const u8 *he_cap;
1702 const struct ieee80211_he_operation *he_operation;
1703 const struct ieee80211_he_spr *he_spr;
1704 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1705 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1706 const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
1707 const u8 *uora_element;
1708 const u8 *mesh_id;
1709 const u8 *peering;
1710 const __le16 *awake_window;
1711 const u8 *preq;
1712 const u8 *prep;
1713 const u8 *perr;
1714 const struct ieee80211_rann_ie *rann;
1715 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1716 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1717 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1718 const u8 *max_channel_switch_time;
1719 const u8 *country_elem;
1720 const u8 *pwr_constr_elem;
1721 const u8 *cisco_dtpc_elem;
1722 const struct ieee80211_timeout_interval_ie *timeout_int;
1723 const u8 *opmode_notif;
1724 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1725 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1726 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1727 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1728 const struct ieee80211_bssid_index *bssid_index;
1729 u8 max_bssid_indicator;
1730 u8 dtim_count;
1731 u8 dtim_period;
1732 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1733 const struct ieee80211_s1g_cap *s1g_capab;
1734 const struct ieee80211_s1g_oper_ie *s1g_oper;
1735 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1736 const struct ieee80211_aid_response_ie *aid_resp;
1737 const struct ieee80211_eht_cap_elem *eht_cap;
1738 const struct ieee80211_eht_operation *eht_operation;
1739 const struct ieee80211_multi_link_elem *ml_basic;
1740 const struct ieee80211_multi_link_elem *ml_reconf;
1741 const struct ieee80211_bandwidth_indication *bandwidth_indication;
1742 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT];
1743
1744 /* length of them, respectively */
1745 u8 ext_capab_len;
1746 u8 ssid_len;
1747 u8 supp_rates_len;
1748 u8 tim_len;
1749 u8 rsn_len;
1750 u8 rsnx_len;
1751 u8 ext_supp_rates_len;
1752 u8 wmm_info_len;
1753 u8 wmm_param_len;
1754 u8 he_cap_len;
1755 u8 mesh_id_len;
1756 u8 peering_len;
1757 u8 preq_len;
1758 u8 prep_len;
1759 u8 perr_len;
1760 u8 country_elem_len;
1761 u8 bssid_index_len;
1762 u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
1763 u8 tx_pwr_env_num;
1764 u8 eht_cap_len;
1765
1766 /* mult-link element can be de-fragmented and thus u8 is not sufficient */
1767 size_t ml_basic_len;
1768 size_t ml_reconf_len;
1769
1770 u8 ttlm_num;
1771
1772 /*
1773 * store the per station profile pointer and length in case that the
1774 * parsing also handled Multi-Link element parsing for a specific link
1775 * ID.
1776 */
1777 struct ieee80211_mle_per_sta_profile *prof;
1778 size_t sta_prof_len;
1779
1780 /* whether/which parse error occurred while retrieving these elements */
1781 u8 parse_error;
1782};
1783
1784static inline struct ieee80211_local *hw_to_local(
1785 struct ieee80211_hw *hw)
1786{
1787 return container_of(hw, struct ieee80211_local, hw);
1788}
1789
1790static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1791{
1792 return container_of(txq, struct txq_info, txq);
1793}
1794
1795static inline bool txq_has_queue(struct ieee80211_txq *txq)
1796{
1797 struct txq_info *txqi = to_txq_info(txq);
1798
1799 return !(skb_queue_empty(list: &txqi->frags) && !txqi->tin.backlog_packets);
1800}
1801
1802static inline bool
1803ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1804{
1805 return status->flag & RX_FLAG_MACTIME;
1806}
1807
1808void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1809void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1810
1811/* This function returns the number of multicast stations connected to this
1812 * interface. It returns -1 if that number is not tracked, that is for netdevs
1813 * not in AP or AP_VLAN mode or when using 4addr.
1814 */
1815static inline int
1816ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1817{
1818 if (sdata->vif.type == NL80211_IFTYPE_AP)
1819 return atomic_read(v: &sdata->u.ap.num_mcast_sta);
1820 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1821 return atomic_read(v: &sdata->u.vlan.num_mcast_sta);
1822 return -1;
1823}
1824
1825u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1826 struct ieee80211_rx_status *status,
1827 unsigned int mpdu_len,
1828 unsigned int mpdu_offset);
1829int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1830int ieee80211_hw_conf_chan(struct ieee80211_local *local);
1831void ieee80211_hw_conf_init(struct ieee80211_local *local);
1832void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1833void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1834 u64 changed);
1835void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1836 u64 changed);
1837void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1838 struct ieee80211_link_data *link,
1839 u64 changed);
1840void ieee80211_configure_filter(struct ieee80211_local *local);
1841u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1842
1843u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1844int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1845 u64 *cookie, gfp_t gfp);
1846
1847void ieee80211_check_fast_rx(struct sta_info *sta);
1848void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1849void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1850void ieee80211_clear_fast_rx(struct sta_info *sta);
1851
1852bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
1853 const u8 *addr, int *out_link_id);
1854
1855/* STA code */
1856void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1857int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1858 struct cfg80211_auth_request *req);
1859int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1860 struct cfg80211_assoc_request *req);
1861int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1862 struct cfg80211_deauth_request *req);
1863int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1864 struct cfg80211_disassoc_request *req);
1865void ieee80211_send_pspoll(struct ieee80211_local *local,
1866 struct ieee80211_sub_if_data *sdata);
1867void ieee80211_recalc_ps(struct ieee80211_local *local);
1868void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1869void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1870void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1871 struct sk_buff *skb);
1872void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1873 struct sk_buff *skb);
1874void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1875void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1876void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1877void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1878 __le16 fc, bool acked);
1879void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1880void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1881void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1882void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1883 u8 reason, bool tx);
1884void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
1885void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
1886void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link);
1887
1888/* IBSS code */
1889void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1890void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1891void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1892 const u8 *bssid, const u8 *addr, u32 supp_rates);
1893int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1894 struct cfg80211_ibss_params *params);
1895int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1896void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1897void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1898 struct sk_buff *skb);
1899int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1900 struct cfg80211_csa_settings *csa_settings,
1901 u64 *changed);
1902int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata,
1903 u64 *changed);
1904void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1905
1906/* OCB code */
1907void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1908void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1909 const u8 *bssid, const u8 *addr, u32 supp_rates);
1910void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1911int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1912 struct ocb_setup *setup);
1913int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1914
1915/* mesh code */
1916void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1917void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1918 struct sk_buff *skb);
1919int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1920 struct cfg80211_csa_settings *csa_settings,
1921 u64 *changed);
1922int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
1923 u64 *changed);
1924
1925/* scan/BSS handling */
1926void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work);
1927int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1928 const u8 *ssid, u8 ssid_len,
1929 struct ieee80211_channel **channels,
1930 unsigned int n_channels);
1931int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1932 struct cfg80211_scan_request *req);
1933void ieee80211_scan_cancel(struct ieee80211_local *local);
1934void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1935void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1936
1937void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss,
1938 const struct cfg80211_bss_ies *ies, void *data);
1939
1940void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1941struct ieee80211_bss *
1942ieee80211_bss_info_update(struct ieee80211_local *local,
1943 struct ieee80211_rx_status *rx_status,
1944 struct ieee80211_mgmt *mgmt,
1945 size_t len,
1946 struct ieee80211_channel *channel);
1947void ieee80211_rx_bss_put(struct ieee80211_local *local,
1948 struct ieee80211_bss *bss);
1949
1950/* scheduled scan handling */
1951int
1952__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1953 struct cfg80211_sched_scan_request *req);
1954int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1955 struct cfg80211_sched_scan_request *req);
1956int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1957void ieee80211_sched_scan_end(struct ieee80211_local *local);
1958void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy,
1959 struct wiphy_work *work);
1960
1961/* off-channel/mgmt-tx */
1962void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1963void ieee80211_offchannel_return(struct ieee80211_local *local);
1964void ieee80211_roc_setup(struct ieee80211_local *local);
1965void ieee80211_start_next_roc(struct ieee80211_local *local);
1966void ieee80211_roc_purge(struct ieee80211_local *local,
1967 struct ieee80211_sub_if_data *sdata);
1968int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1969 struct ieee80211_channel *chan,
1970 unsigned int duration, u64 *cookie);
1971int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1972 struct wireless_dev *wdev, u64 cookie);
1973int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1974 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1975int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1976 struct wireless_dev *wdev, u64 cookie);
1977
1978/* channel switch handling */
1979void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work);
1980int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1981 struct cfg80211_csa_settings *params);
1982
1983/* color change handling */
1984void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
1985 struct wiphy_work *work);
1986void ieee80211_color_collision_detection_work(struct work_struct *work);
1987
1988/* interface handling */
1989#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1990 NETIF_F_HW_CSUM | NETIF_F_SG | \
1991 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
1992 NETIF_F_HW_TC)
1993#define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1994#define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1995 MAC80211_SUPPORTED_FEATURES_RX)
1996
1997int ieee80211_iface_init(void);
1998void ieee80211_iface_exit(void);
1999int ieee80211_if_add(struct ieee80211_local *local, const char *name,
2000 unsigned char name_assign_type,
2001 struct wireless_dev **new_wdev, enum nl80211_iftype type,
2002 struct vif_params *params);
2003int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
2004 enum nl80211_iftype type);
2005void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
2006void ieee80211_remove_interfaces(struct ieee80211_local *local);
2007u32 ieee80211_idle_off(struct ieee80211_local *local);
2008void ieee80211_recalc_idle(struct ieee80211_local *local);
2009void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
2010 const int offset);
2011int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
2012void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
2013int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
2014void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
2015
2016bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
2017void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
2018 bool update_bss);
2019void ieee80211_recalc_offload(struct ieee80211_local *local);
2020
2021static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
2022{
2023 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
2024}
2025
2026/* link handling */
2027void ieee80211_link_setup(struct ieee80211_link_data *link);
2028void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
2029 int link_id,
2030 struct ieee80211_link_data *link,
2031 struct ieee80211_bss_conf *link_conf);
2032void ieee80211_link_stop(struct ieee80211_link_data *link);
2033int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2034 u16 new_links, u16 dormant_links);
2035static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata)
2036{
2037 ieee80211_vif_set_links(sdata, new_links: 0, dormant_links: 0);
2038}
2039
2040/* tx handling */
2041void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2042void ieee80211_tx_pending(struct tasklet_struct *t);
2043netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2044 struct net_device *dev);
2045netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2046 struct net_device *dev);
2047netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2048 struct net_device *dev);
2049void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2050 struct net_device *dev,
2051 u32 info_flags,
2052 u32 ctrl_flags,
2053 u64 *cookie);
2054void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
2055 struct sk_buff_head *skbs);
2056struct sk_buff *
2057ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2058 struct sk_buff *skb, u32 info_flags);
2059void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2060 int retry_count, bool send_to_cooked,
2061 struct ieee80211_tx_status *status);
2062
2063void ieee80211_check_fast_xmit(struct sta_info *sta);
2064void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2065void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2066void ieee80211_clear_fast_xmit(struct sta_info *sta);
2067int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2068 const u8 *buf, size_t len,
2069 const u8 *dest, __be16 proto, bool unencrypted,
2070 int link_id, u64 *cookie);
2071int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2072 const u8 *buf, size_t len);
2073void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
2074 struct sta_info *sta,
2075 struct ieee80211_fast_tx *fast_tx,
2076 struct sk_buff *skb, bool ampdu,
2077 const u8 *da, const u8 *sa);
2078void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
2079 struct sta_info *sta, struct sk_buff *skb);
2080
2081/* HT */
2082void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2083 struct ieee80211_sta_ht_cap *ht_cap);
2084bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2085 struct ieee80211_supported_band *sband,
2086 const struct ieee80211_ht_cap *ht_cap_ie,
2087 struct link_sta_info *link_sta);
2088void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2089 const u8 *da, u16 tid,
2090 u16 initiator, u16 reason_code);
2091int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2092 enum ieee80211_smps_mode smps, const u8 *da,
2093 const u8 *bssid, int link_id);
2094bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
2095 enum ieee80211_smps_mode smps_mode_new);
2096
2097void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2098 u16 initiator, u16 reason, bool stop);
2099void __ieee80211_start_rx_ba_session(struct sta_info *sta,
2100 u8 dialog_token, u16 timeout,
2101 u16 start_seq_num, u16 ba_policy, u16 tid,
2102 u16 buf_size, bool tx, bool auto_seq,
2103 const struct ieee80211_addba_ext_ie *addbaext);
2104void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2105 enum ieee80211_agg_stop_reason reason);
2106void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2107 struct sta_info *sta,
2108 struct ieee80211_mgmt *mgmt, size_t len);
2109void ieee80211_process_addba_resp(struct ieee80211_local *local,
2110 struct sta_info *sta,
2111 struct ieee80211_mgmt *mgmt,
2112 size_t len);
2113void ieee80211_process_addba_request(struct ieee80211_local *local,
2114 struct sta_info *sta,
2115 struct ieee80211_mgmt *mgmt,
2116 size_t len);
2117
2118int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2119 enum ieee80211_agg_stop_reason reason);
2120void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2121 struct tid_ampdu_tx *tid_tx);
2122void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2123 struct tid_ampdu_tx *tid_tx);
2124void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work);
2125void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2126void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2127
2128u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2129enum nl80211_smps_mode
2130ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2131
2132/* VHT */
2133void
2134ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2135 struct ieee80211_supported_band *sband,
2136 const struct ieee80211_vht_cap *vht_cap_ie,
2137 const struct ieee80211_vht_cap *vht_cap_ie2,
2138 struct link_sta_info *link_sta);
2139enum ieee80211_sta_rx_bandwidth
2140ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta);
2141enum ieee80211_sta_rx_bandwidth
2142ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta);
2143void ieee80211_sta_init_nss(struct link_sta_info *link_sta);
2144enum ieee80211_sta_rx_bandwidth
2145ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2146enum nl80211_chan_width
2147ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
2148void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2149 struct ieee80211_link_data *link,
2150 struct ieee80211_mgmt *mgmt);
2151u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2152 struct link_sta_info *sta,
2153 u8 opmode, enum nl80211_band band);
2154void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2155 struct link_sta_info *sta,
2156 u8 opmode, enum nl80211_band band);
2157void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2158 struct ieee80211_sta_vht_cap *vht_cap);
2159void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2160 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2161enum nl80211_chan_width
2162ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
2163
2164/* HE */
2165void
2166ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2167 struct ieee80211_supported_band *sband,
2168 const u8 *he_cap_ie, u8 he_cap_len,
2169 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2170 struct link_sta_info *link_sta);
2171void
2172ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2173 const struct ieee80211_he_spr *he_spr_ie_elem);
2174
2175void
2176ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2177 const struct ieee80211_he_operation *he_op_ie_elem);
2178
2179/* S1G */
2180void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2181bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2182void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2183 struct sk_buff *skb);
2184void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2185 struct sk_buff *skb);
2186
2187/* Spectrum management */
2188void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2189 struct ieee80211_mgmt *mgmt,
2190 size_t len);
2191/**
2192 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2193 * @sdata: the sdata of the interface which has received the frame
2194 * @elems: parsed 802.11 elements received with the frame
2195 * @current_band: indicates the current band
2196 * @vht_cap_info: VHT capabilities of the transmitter
2197 * @conn: contains information about own capabilities and restrictions
2198 * to decide which channel switch announcements can be accepted
2199 * @bssid: the currently connected bssid (for reporting)
2200 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2201 * All of them will be filled with if success only.
2202 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2203 */
2204int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2205 struct ieee802_11_elems *elems,
2206 enum nl80211_band current_band,
2207 u32 vht_cap_info,
2208 struct ieee80211_conn_settings *conn,
2209 u8 *bssid,
2210 struct ieee80211_csa_ie *csa_ie);
2211
2212/* Suspend/resume and hw reconfiguration */
2213int ieee80211_reconfig(struct ieee80211_local *local);
2214void ieee80211_stop_device(struct ieee80211_local *local);
2215
2216int __ieee80211_suspend(struct ieee80211_hw *hw,
2217 struct cfg80211_wowlan *wowlan);
2218
2219static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2220{
2221 struct ieee80211_local *local = hw_to_local(hw);
2222
2223 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2224 !test_bit(SCAN_COMPLETED, &local->scanning),
2225 "%s: resume with hardware scan still in progress\n",
2226 wiphy_name(hw->wiphy));
2227
2228 return ieee80211_reconfig(local: hw_to_local(hw));
2229}
2230
2231/* utility functions/constants */
2232extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2233const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode);
2234enum ieee80211_conn_bw_limit
2235ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef);
2236int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2237 int rate, int erp, int short_preamble);
2238void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2239 struct ieee80211_tx_queue_params *qparam,
2240 int ac);
2241void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
2242 bool bss_notify, bool enable_qos);
2243void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2244 struct sta_info *sta, struct sk_buff *skb);
2245
2246void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2247 struct sk_buff *skb, int tid, int link_id,
2248 enum nl80211_band band);
2249
2250/* sta_out needs to be checked for ERR_PTR() before using */
2251int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2252 struct sk_buff *skb,
2253 struct sta_info **sta_out);
2254
2255static inline void
2256ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2257 struct sk_buff *skb, int tid,
2258 enum nl80211_band band)
2259{
2260 rcu_read_lock();
2261 __ieee80211_tx_skb_tid_band(sdata, skb, tid, link_id: -1, band);
2262 rcu_read_unlock();
2263}
2264
2265void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2266 struct sk_buff *skb, int tid, int link_id);
2267
2268static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2269 struct sk_buff *skb)
2270{
2271 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2272 ieee80211_tx_skb_tid(sdata, skb, tid: 7, link_id: -1);
2273}
2274
2275/**
2276 * struct ieee80211_elems_parse_params - element parsing parameters
2277 * @mode: connection mode for parsing
2278 * @start: pointer to the elements
2279 * @len: length of the elements
2280 * @action: %true if the elements came from an action frame
2281 * @filter: bitmap of element IDs to filter out while calculating
2282 * the element CRC
2283 * @crc: CRC starting value
2284 * @bss: the BSS to parse this as, for multi-BSSID cases this can
2285 * represent a non-transmitting BSS in which case the data
2286 * for that non-transmitting BSS is returned
2287 * @link_id: the link ID to parse elements for, if a STA profile
2288 * is present in the multi-link element, or -1 to ignore;
2289 * note that the code currently assumes parsing an association
2290 * (or re-association) response frame if this is given
2291 * @from_ap: frame is received from an AP (currently used only
2292 * for EHT capabilities parsing)
2293 */
2294struct ieee80211_elems_parse_params {
2295 enum ieee80211_conn_mode mode;
2296 const u8 *start;
2297 size_t len;
2298 bool action;
2299 u64 filter;
2300 u32 crc;
2301 struct cfg80211_bss *bss;
2302 int link_id;
2303 bool from_ap;
2304};
2305
2306struct ieee802_11_elems *
2307ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
2308
2309static inline struct ieee802_11_elems *
2310ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2311 u64 filter, u32 crc,
2312 struct cfg80211_bss *bss)
2313{
2314 struct ieee80211_elems_parse_params params = {
2315 .mode = IEEE80211_CONN_MODE_HIGHEST,
2316 .start = start,
2317 .len = len,
2318 .action = action,
2319 .filter = filter,
2320 .crc = crc,
2321 .bss = bss,
2322 .link_id = -1,
2323 };
2324
2325 return ieee802_11_parse_elems_full(params: &params);
2326}
2327
2328static inline struct ieee802_11_elems *
2329ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2330 struct cfg80211_bss *bss)
2331{
2332 return ieee802_11_parse_elems_crc(start, len, action, filter: 0, crc: 0, bss);
2333}
2334
2335extern const int ieee802_1d_to_ac[8];
2336
2337static inline int ieee80211_ac_from_tid(int tid)
2338{
2339 return ieee802_1d_to_ac[tid & 7];
2340}
2341
2342void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy,
2343 struct wiphy_work *work);
2344void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy,
2345 struct wiphy_work *work);
2346void ieee80211_dynamic_ps_timer(struct timer_list *t);
2347void ieee80211_send_nullfunc(struct ieee80211_local *local,
2348 struct ieee80211_sub_if_data *sdata,
2349 bool powersave);
2350void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2351 struct ieee80211_sub_if_data *sdata);
2352void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2353 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2354
2355void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2356 unsigned long queues,
2357 enum queue_stop_reason reason,
2358 bool refcounted);
2359void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2360 struct ieee80211_sub_if_data *sdata,
2361 enum queue_stop_reason reason);
2362void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2363 struct ieee80211_sub_if_data *sdata,
2364 enum queue_stop_reason reason);
2365void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2366 unsigned long queues,
2367 enum queue_stop_reason reason,
2368 bool refcounted);
2369void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2370 enum queue_stop_reason reason,
2371 bool refcounted);
2372void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2373 enum queue_stop_reason reason,
2374 bool refcounted);
2375void ieee80211_add_pending_skb(struct ieee80211_local *local,
2376 struct sk_buff *skb);
2377void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2378 struct sk_buff_head *skbs);
2379void ieee80211_flush_queues(struct ieee80211_local *local,
2380 struct ieee80211_sub_if_data *sdata, bool drop);
2381void __ieee80211_flush_queues(struct ieee80211_local *local,
2382 struct ieee80211_sub_if_data *sdata,
2383 unsigned int queues, bool drop);
2384
2385static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2386{
2387 /*
2388 * It's unsafe to try to do any work during reconfigure flow.
2389 * When the flow ends the work will be requeued.
2390 */
2391 if (local->in_reconfig)
2392 return false;
2393
2394 /*
2395 * If quiescing is set, we are racing with __ieee80211_suspend.
2396 * __ieee80211_suspend flushes the workers after setting quiescing,
2397 * and we check quiescing / suspended before enqueing new workers.
2398 * We should abort the worker to avoid the races below.
2399 */
2400 if (local->quiescing)
2401 return false;
2402
2403 /*
2404 * We might already be suspended if the following scenario occurs:
2405 * __ieee80211_suspend Control path
2406 *
2407 * if (local->quiescing)
2408 * return;
2409 * local->quiescing = true;
2410 * flush_workqueue();
2411 * queue_work(...);
2412 * local->suspended = true;
2413 * local->quiescing = false;
2414 * worker starts running...
2415 */
2416 if (local->suspended)
2417 return false;
2418
2419 return true;
2420}
2421
2422int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2423void ieee80211_txq_set_params(struct ieee80211_local *local);
2424void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2425void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2426 struct sta_info *sta,
2427 struct txq_info *txq, int tid);
2428void ieee80211_txq_purge(struct ieee80211_local *local,
2429 struct txq_info *txqi);
2430void ieee80211_purge_sta_txqs(struct sta_info *sta);
2431void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2432 struct ieee80211_sub_if_data *sdata);
2433void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2434 struct txq_info *txqi);
2435void ieee80211_wake_txqs(struct tasklet_struct *t);
2436void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2437 u16 transaction, u16 auth_alg, u16 status,
2438 const u8 *extra, size_t extra_len, const u8 *bssid,
2439 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2440 u32 tx_flags);
2441void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2442 const u8 *da, const u8 *bssid,
2443 u16 stype, u16 reason,
2444 bool send_frame, u8 *frame_buf);
2445
2446enum {
2447 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2448 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2449 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2450};
2451
2452int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2453 size_t buffer_len,
2454 struct ieee80211_scan_ies *ie_desc,
2455 const u8 *ie, size_t ie_len,
2456 u8 bands_used, u32 *rate_masks,
2457 struct cfg80211_chan_def *chandef,
2458 u32 flags);
2459struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2460 const u8 *src, const u8 *dst,
2461 u32 ratemask,
2462 struct ieee80211_channel *chan,
2463 const u8 *ssid, size_t ssid_len,
2464 const u8 *ie, size_t ie_len,
2465 u32 flags);
2466u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2467 struct ieee802_11_elems *elems,
2468 enum nl80211_band band, u32 *basic_rates);
2469int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2470 struct ieee80211_link_data *link,
2471 enum ieee80211_smps_mode smps_mode);
2472void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2473 struct ieee80211_link_data *link);
2474void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2475 int link_id);
2476
2477size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2478u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2479 u16 cap);
2480u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2481 const struct cfg80211_chan_def *chandef,
2482 u16 prot_mode, bool rifs_mode);
2483void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2484 const struct cfg80211_chan_def *chandef);
2485u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2486 u32 cap);
2487u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2488 const struct cfg80211_chan_def *chandef);
2489u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata);
2490u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2491u8 *ieee80211_ie_build_eht_oper(u8 *pos, struct cfg80211_chan_def *chandef,
2492 const struct ieee80211_sta_eht_cap *eht_cap);
2493int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2494 const struct ieee80211_supported_band *sband,
2495 const u8 *srates, int srates_len, u32 *rates);
2496u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2497void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2498 struct ieee80211_sta_s1g_cap *caps,
2499 struct sk_buff *skb);
2500void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2501 struct sk_buff *skb);
2502
2503/* element building in SKBs */
2504int ieee80211_put_srates_elem(struct sk_buff *skb,
2505 const struct ieee80211_supported_band *sband,
2506 u32 basic_rates, u32 rate_flags, u32 masked_rates,
2507 u8 element_id);
2508int ieee80211_put_he_cap(struct sk_buff *skb,
2509 struct ieee80211_sub_if_data *sdata,
2510 const struct ieee80211_supported_band *sband,
2511 const struct ieee80211_conn_settings *conn);
2512int ieee80211_put_he_6ghz_cap(struct sk_buff *skb,
2513 struct ieee80211_sub_if_data *sdata,
2514 enum ieee80211_smps_mode smps_mode);
2515int ieee80211_put_eht_cap(struct sk_buff *skb,
2516 struct ieee80211_sub_if_data *sdata,
2517 const struct ieee80211_supported_band *sband,
2518 const struct ieee80211_conn_settings *conn);
2519
2520/* channel management */
2521bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2522 struct cfg80211_chan_def *chandef);
2523bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2524 const struct ieee80211_vht_operation *oper,
2525 const struct ieee80211_ht_operation *htop,
2526 struct cfg80211_chan_def *chandef);
2527void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info,
2528 struct cfg80211_chan_def *chandef);
2529bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local,
2530 const struct ieee80211_he_operation *he_oper,
2531 const struct ieee80211_eht_operation *eht_oper,
2532 struct cfg80211_chan_def *chandef);
2533bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2534 struct cfg80211_chan_def *chandef);
2535void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef,
2536 struct ieee80211_conn_settings *conn);
2537static inline void
2538ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq,
2539 struct ieee80211_conn_settings *conn)
2540{
2541 ieee80211_chandef_downgrade(chandef: &chanreq->oper, conn);
2542 if (WARN_ON(!conn))
2543 return;
2544 if (conn->mode < IEEE80211_CONN_MODE_EHT)
2545 chanreq->ap.chan = NULL;
2546}
2547
2548bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a,
2549 const struct ieee80211_chan_req *b);
2550
2551int __must_check
2552ieee80211_link_use_channel(struct ieee80211_link_data *link,
2553 const struct ieee80211_chan_req *req,
2554 enum ieee80211_chanctx_mode mode);
2555int __must_check
2556ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2557 const struct ieee80211_chan_req *req,
2558 enum ieee80211_chanctx_mode mode,
2559 bool radar_required);
2560int __must_check
2561ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2562int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2563
2564int __must_check
2565ieee80211_link_change_chanreq(struct ieee80211_link_data *link,
2566 const struct ieee80211_chan_req *req,
2567 u64 *changed);
2568void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2569void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2570void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2571 bool clear);
2572int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2573 struct ieee80211_chanctx *ctx);
2574
2575void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2576 struct ieee80211_chanctx *chanctx);
2577void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2578 struct ieee80211_chanctx *ctx,
2579 struct ieee80211_link_data *rsvd_for);
2580bool ieee80211_is_radar_required(struct ieee80211_local *local);
2581
2582void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work);
2583void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2584void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy,
2585 struct wiphy_work *work);
2586int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2587 struct cfg80211_csa_settings *csa_settings);
2588
2589void ieee80211_recalc_dtim(struct ieee80211_local *local,
2590 struct ieee80211_sub_if_data *sdata);
2591int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2592 const struct cfg80211_chan_def *chandef,
2593 enum ieee80211_chanctx_mode chanmode,
2594 u8 radar_detect);
2595int ieee80211_max_num_channels(struct ieee80211_local *local);
2596void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2597 struct ieee80211_chanctx *ctx);
2598
2599/* TDLS */
2600int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2601 const u8 *peer, int link_id,
2602 u8 action_code, u8 dialog_token, u16 status_code,
2603 u32 peer_capability, bool initiator,
2604 const u8 *extra_ies, size_t extra_ies_len);
2605int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2606 const u8 *peer, enum nl80211_tdls_operation oper);
2607void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk);
2608int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2609 const u8 *addr, u8 oper_class,
2610 struct cfg80211_chan_def *chandef);
2611void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2612 struct net_device *dev,
2613 const u8 *addr);
2614void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link);
2615void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2616 const u8 *peer, u16 reason);
2617void
2618ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2619 struct sk_buff *skb);
2620
2621
2622const char *ieee80211_get_reason_code_string(u16 reason_code);
2623u16 ieee80211_encode_usf(int val);
2624u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2625 enum nl80211_iftype type);
2626
2627extern const struct ethtool_ops ieee80211_ethtool_ops;
2628
2629u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2630 struct ieee80211_vif *vif,
2631 struct ieee80211_sta *pubsta,
2632 int len, bool ampdu);
2633#ifdef CONFIG_MAC80211_NOINLINE
2634#define debug_noinline noinline
2635#else
2636#define debug_noinline
2637#endif
2638
2639void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2640void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2641
2642u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata);
2643
2644void
2645ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2646 struct ieee80211_supported_band *sband,
2647 const u8 *he_cap_ie, u8 he_cap_len,
2648 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2649 u8 eht_cap_len,
2650 struct link_sta_info *link_sta);
2651void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata,
2652 struct ieee80211_mgmt *mgmt, size_t len);
2653void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata,
2654 struct ieee80211_mgmt *mgmt, size_t len);
2655int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata,
2656 struct cfg80211_ttlm_params *params);
2657
2658void ieee80211_check_wbrf_support(struct ieee80211_local *local);
2659void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2660void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2661
2662#if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST)
2663#define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym)
2664#define VISIBLE_IF_MAC80211_KUNIT
2665ieee80211_rx_result
2666ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx);
2667#else
2668#define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym)
2669#define VISIBLE_IF_MAC80211_KUNIT static
2670#endif
2671
2672#endif /* IEEE80211_I_H */
2673

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source code of linux/net/mac80211/ieee80211_i.h