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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2002-2005, Instant802 Networks, Inc.
4 * Copyright 2005, Devicescape Software, Inc.
5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2015 Intel Mobile Communications GmbH
8 * Copyright (C) 2018-2021 Intel Corporation
9 */
10
11#ifndef IEEE80211_I_H
12#define IEEE80211_I_H
13
14#include <linux/kernel.h>
15#include <linux/device.h>
16#include <linux/if_ether.h>
17#include <linux/interrupt.h>
18#include <linux/list.h>
19#include <linux/netdevice.h>
20#include <linux/skbuff.h>
21#include <linux/workqueue.h>
22#include <linux/types.h>
23#include <linux/spinlock.h>
24#include <linux/etherdevice.h>
25#include <linux/leds.h>
26#include <linux/idr.h>
27#include <linux/rhashtable.h>
28#include <net/ieee80211_radiotap.h>
29#include <net/cfg80211.h>
30#include <net/mac80211.h>
31#include <net/fq.h>
32#include "key.h"
33#include "sta_info.h"
34#include "debug.h"
35
36extern const struct cfg80211_ops mac80211_config_ops;
37
38struct ieee80211_local;
39
40/* Maximum number of broadcast/multicast frames to buffer when some of the
41 * associated stations are using power saving. */
42#define AP_MAX_BC_BUFFER 128
43
44/* Maximum number of frames buffered to all STAs, including multicast frames.
45 * Note: increasing this limit increases the potential memory requirement. Each
46 * frame can be up to about 2 kB long. */
47#define TOTAL_MAX_TX_BUFFER 512
48
49/* Required encryption head and tailroom */
50#define IEEE80211_ENCRYPT_HEADROOM 8
51#define IEEE80211_ENCRYPT_TAILROOM 18
52
53/* power level hasn't been configured (or set to automatic) */
54#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
55
56/*
57 * Some APs experience problems when working with U-APSD. Decreasing the
58 * probability of that happening by using legacy mode for all ACs but VO isn't
59 * enough.
60 *
61 * Cisco 4410N originally forced us to enable VO by default only because it
62 * treated non-VO ACs as legacy.
63 *
64 * However some APs (notably Netgear R7000) silently reclassify packets to
65 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
66 * clients would never see some frames (e.g. ARP responses) or would fetch them
67 * accidentally after a long time.
68 *
69 * It makes little sense to enable u-APSD queues by default because it needs
70 * userspace applications to be aware of it to actually take advantage of the
71 * possible additional powersavings. Implicitly depending on driver autotrigger
72 * frame support doesn't make much sense.
73 */
74#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
75
76#define IEEE80211_DEFAULT_MAX_SP_LEN \
77 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
78
79extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
80
81#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
82
83#define IEEE80211_MAX_NAN_INSTANCE_ID 255
84
85struct ieee80211_bss {
86 u32 device_ts_beacon, device_ts_presp;
87
88 bool wmm_used;
89 bool uapsd_supported;
90
91#define IEEE80211_MAX_SUPP_RATES 32
92 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
93 size_t supp_rates_len;
94 struct ieee80211_rate *beacon_rate;
95
96 u32 vht_cap_info;
97
98 /*
99 * During association, we save an ERP value from a probe response so
100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
102 * otherwise, you probably don't want to use them.
103 */
104 bool has_erp_value;
105 u8 erp_value;
106
107 /* Keep track of the corruption of the last beacon/probe response. */
108 u8 corrupt_data;
109
110 /* Keep track of what bits of information we have valid info for. */
111 u8 valid_data;
112};
113
114/**
115 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
116 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
117 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
118 *
119 * These are bss flags that are attached to a bss in the
120 * @corrupt_data field of &struct ieee80211_bss.
121 */
122enum ieee80211_bss_corrupt_data_flags {
123 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
124 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
125};
126
127/**
128 * enum ieee80211_valid_data_flags - BSS valid data flags
129 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
130 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
132 *
133 * These are bss flags that are attached to a bss in the
134 * @valid_data field of &struct ieee80211_bss. They show which parts
135 * of the data structure were received as a result of an un-corrupted
136 * beacon/probe response.
137 */
138enum ieee80211_bss_valid_data_flags {
139 IEEE80211_BSS_VALID_WMM = BIT(1),
140 IEEE80211_BSS_VALID_RATES = BIT(2),
141 IEEE80211_BSS_VALID_ERP = BIT(3)
142};
143
144typedef unsigned __bitwise ieee80211_tx_result;
145#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
146#define TX_DROP ((__force ieee80211_tx_result) 1u)
147#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
148
149#define IEEE80211_TX_UNICAST BIT(1)
150#define IEEE80211_TX_PS_BUFFERED BIT(2)
151
152struct ieee80211_tx_data {
153 struct sk_buff *skb;
154 struct sk_buff_head skbs;
155 struct ieee80211_local *local;
156 struct ieee80211_sub_if_data *sdata;
157 struct sta_info *sta;
158 struct ieee80211_key *key;
159 struct ieee80211_tx_rate rate;
160
161 unsigned int flags;
162};
163
164
165typedef unsigned __bitwise ieee80211_rx_result;
166#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
167#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
168#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
169#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
170
171/**
172 * enum ieee80211_packet_rx_flags - packet RX flags
173 * @IEEE80211_RX_AMSDU: a-MSDU packet
174 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
175 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
176 *
177 * These are per-frame flags that are attached to a frame in the
178 * @rx_flags field of &struct ieee80211_rx_status.
179 */
180enum ieee80211_packet_rx_flags {
181 IEEE80211_RX_AMSDU = BIT(3),
182 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
183 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
184};
185
186/**
187 * enum ieee80211_rx_flags - RX data flags
188 *
189 * @IEEE80211_RX_CMNTR: received on cooked monitor already
190 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
191 * to cfg80211_report_obss_beacon().
192 *
193 * These flags are used across handling multiple interfaces
194 * for a single frame.
195 */
196enum ieee80211_rx_flags {
197 IEEE80211_RX_CMNTR = BIT(0),
198 IEEE80211_RX_BEACON_REPORTED = BIT(1),
199};
200
201struct ieee80211_rx_data {
202 struct list_head *list;
203 struct sk_buff *skb;
204 struct ieee80211_local *local;
205 struct ieee80211_sub_if_data *sdata;
206 struct sta_info *sta;
207 struct ieee80211_key *key;
208
209 unsigned int flags;
210
211 /*
212 * Index into sequence numbers array, 0..16
213 * since the last (16) is used for non-QoS,
214 * will be 16 on non-QoS frames.
215 */
216 int seqno_idx;
217
218 /*
219 * Index into the security IV/PN arrays, 0..16
220 * since the last (16) is used for CCMP-encrypted
221 * management frames, will be set to 16 on mgmt
222 * frames and 0 on non-QoS frames.
223 */
224 int security_idx;
225
226 union {
227 struct {
228 u32 iv32;
229 u16 iv16;
230 } tkip;
231 struct {
232 u8 pn[IEEE80211_CCMP_PN_LEN];
233 } ccm_gcm;
234 };
235};
236
237struct ieee80211_csa_settings {
238 const u16 *counter_offsets_beacon;
239 const u16 *counter_offsets_presp;
240
241 int n_counter_offsets_beacon;
242 int n_counter_offsets_presp;
243
244 u8 count;
245};
246
247struct beacon_data {
248 u8 *head, *tail;
249 int head_len, tail_len;
250 struct ieee80211_meshconf_ie *meshconf;
251 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
252 u8 cntdwn_current_counter;
253 struct rcu_head rcu_head;
254};
255
256struct probe_resp {
257 struct rcu_head rcu_head;
258 int len;
259 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
260 u8 data[];
261};
262
263struct fils_discovery_data {
264 struct rcu_head rcu_head;
265 int len;
266 u8 data[];
267};
268
269struct unsol_bcast_probe_resp_data {
270 struct rcu_head rcu_head;
271 int len;
272 u8 data[];
273};
274
275struct ps_data {
276 /* yes, this looks ugly, but guarantees that we can later use
277 * bitmap_empty :)
278 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
279 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
280 __aligned(__alignof__(unsigned long));
281 struct sk_buff_head bc_buf;
282 atomic_t num_sta_ps; /* number of stations in PS mode */
283 int dtim_count;
284 bool dtim_bc_mc;
285};
286
287struct ieee80211_if_ap {
288 struct beacon_data __rcu *beacon;
289 struct probe_resp __rcu *probe_resp;
290 struct fils_discovery_data __rcu *fils_discovery;
291 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
292
293 /* to be used after channel switch. */
294 struct cfg80211_beacon_data *next_beacon;
295 struct list_head vlans; /* write-protected with RTNL and local->mtx */
296
297 struct ps_data ps;
298 atomic_t num_mcast_sta; /* number of stations receiving multicast */
299
300 bool multicast_to_unicast;
301};
302
303struct ieee80211_if_vlan {
304 struct list_head list; /* write-protected with RTNL and local->mtx */
305
306 /* used for all tx if the VLAN is configured to 4-addr mode */
307 struct sta_info __rcu *sta;
308 atomic_t num_mcast_sta; /* number of stations receiving multicast */
309};
310
311struct mesh_stats {
312 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
313 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
314 __u32 fwded_frames; /* Mesh total forwarded frames */
315 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
316 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
317 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
318};
319
320#define PREQ_Q_F_START 0x1
321#define PREQ_Q_F_REFRESH 0x2
322struct mesh_preq_queue {
323 struct list_head list;
324 u8 dst[ETH_ALEN];
325 u8 flags;
326};
327
328struct ieee80211_roc_work {
329 struct list_head list;
330
331 struct ieee80211_sub_if_data *sdata;
332
333 struct ieee80211_channel *chan;
334
335 bool started, abort, hw_begun, notified;
336 bool on_channel;
337
338 unsigned long start_time;
339
340 u32 duration, req_duration;
341 struct sk_buff *frame;
342 u64 cookie, mgmt_tx_cookie;
343 enum ieee80211_roc_type type;
344};
345
346/* flags used in struct ieee80211_if_managed.flags */
347enum ieee80211_sta_flags {
348 IEEE80211_STA_CONNECTION_POLL = BIT(1),
349 IEEE80211_STA_CONTROL_PORT = BIT(2),
350 IEEE80211_STA_DISABLE_HT = BIT(4),
351 IEEE80211_STA_MFP_ENABLED = BIT(6),
352 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
353 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
354 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
355 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
356 IEEE80211_STA_DISABLE_VHT = BIT(11),
357 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
358 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
359 IEEE80211_STA_DISABLE_WMM = BIT(14),
360 IEEE80211_STA_ENABLE_RRM = BIT(15),
361 IEEE80211_STA_DISABLE_HE = BIT(16),
362};
363
364struct ieee80211_mgd_auth_data {
365 struct cfg80211_bss *bss;
366 unsigned long timeout;
367 int tries;
368 u16 algorithm, expected_transaction;
369
370 u8 key[WLAN_KEY_LEN_WEP104];
371 u8 key_len, key_idx;
372 bool done;
373 bool peer_confirmed;
374 bool timeout_started;
375
376 u16 sae_trans, sae_status;
377 size_t data_len;
378 u8 data[];
379};
380
381struct ieee80211_mgd_assoc_data {
382 struct cfg80211_bss *bss;
383 const u8 *supp_rates;
384
385 unsigned long timeout;
386 int tries;
387
388 u16 capability;
389 u8 prev_bssid[ETH_ALEN];
390 u8 ssid[IEEE80211_MAX_SSID_LEN];
391 u8 ssid_len;
392 u8 supp_rates_len;
393 bool wmm, uapsd;
394 bool need_beacon;
395 bool synced;
396 bool timeout_started;
397
398 u8 ap_ht_param;
399
400 struct ieee80211_vht_cap ap_vht_cap;
401
402 u8 fils_nonces[2 * FILS_NONCE_LEN];
403 u8 fils_kek[FILS_MAX_KEK_LEN];
404 size_t fils_kek_len;
405
406 size_t ie_len;
407 u8 ie[];
408};
409
410struct ieee80211_sta_tx_tspec {
411 /* timestamp of the first packet in the time slice */
412 unsigned long time_slice_start;
413
414 u32 admitted_time; /* in usecs, unlike over the air */
415 u8 tsid;
416 s8 up; /* signed to be able to invalidate with -1 during teardown */
417
418 /* consumed TX time in microseconds in the time slice */
419 u32 consumed_tx_time;
420 enum {
421 TX_TSPEC_ACTION_NONE = 0,
422 TX_TSPEC_ACTION_DOWNGRADE,
423 TX_TSPEC_ACTION_STOP_DOWNGRADE,
424 } action;
425 bool downgraded;
426};
427
428DECLARE_EWMA(beacon_signal, 4, 4)
429
430struct ieee80211_if_managed {
431 struct timer_list timer;
432 struct timer_list conn_mon_timer;
433 struct timer_list bcn_mon_timer;
434 struct timer_list chswitch_timer;
435 struct work_struct monitor_work;
436 struct work_struct chswitch_work;
437 struct work_struct beacon_connection_loss_work;
438 struct work_struct csa_connection_drop_work;
439
440 unsigned long beacon_timeout;
441 unsigned long probe_timeout;
442 int probe_send_count;
443 bool nullfunc_failed;
444 u8 connection_loss:1,
445 driver_disconnect:1,
446 reconnect:1;
447
448 struct cfg80211_bss *associated;
449 struct ieee80211_mgd_auth_data *auth_data;
450 struct ieee80211_mgd_assoc_data *assoc_data;
451
452 u8 bssid[ETH_ALEN] __aligned(2);
453
454 bool powersave; /* powersave requested for this iface */
455 bool broken_ap; /* AP is broken -- turn off powersave */
456 bool have_beacon;
457 u8 dtim_period;
458 enum ieee80211_smps_mode req_smps, /* requested smps mode */
459 driver_smps_mode; /* smps mode request */
460
461 struct work_struct request_smps_work;
462
463 unsigned int flags;
464
465 bool csa_waiting_bcn;
466 bool csa_ignored_same_chan;
467
468 bool beacon_crc_valid;
469 u32 beacon_crc;
470
471 bool status_acked;
472 bool status_received;
473 __le16 status_fc;
474
475 enum {
476 IEEE80211_MFP_DISABLED,
477 IEEE80211_MFP_OPTIONAL,
478 IEEE80211_MFP_REQUIRED
479 } mfp; /* management frame protection */
480
481 /*
482 * Bitmask of enabled u-apsd queues,
483 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
484 * to take effect.
485 */
486 unsigned int uapsd_queues;
487
488 /*
489 * Maximum number of buffered frames AP can deliver during a
490 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
491 * Needs a new association to take effect.
492 */
493 unsigned int uapsd_max_sp_len;
494
495 int wmm_last_param_set;
496 int mu_edca_last_param_set;
497
498 u8 use_4addr;
499
500 s16 p2p_noa_index;
501
502 struct ewma_beacon_signal ave_beacon_signal;
503
504 /*
505 * Number of Beacon frames used in ave_beacon_signal. This can be used
506 * to avoid generating less reliable cqm events that would be based
507 * only on couple of received frames.
508 */
509 unsigned int count_beacon_signal;
510
511 /* Number of times beacon loss was invoked. */
512 unsigned int beacon_loss_count;
513
514 /*
515 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
516 * that triggered a cqm event. 0 indicates that no event has been
517 * generated for the current association.
518 */
519 int last_cqm_event_signal;
520
521 /*
522 * State variables for keeping track of RSSI of the AP currently
523 * connected to and informing driver when RSSI has gone
524 * below/above a certain threshold.
525 */
526 int rssi_min_thold, rssi_max_thold;
527 int last_ave_beacon_signal;
528
529 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
530 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
531 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
532 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
533 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
534 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
535
536 /* TDLS support */
537 u8 tdls_peer[ETH_ALEN] __aligned(2);
538 struct delayed_work tdls_peer_del_work;
539 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
540 struct sk_buff *teardown_skb; /* A copy to send through the AP */
541 spinlock_t teardown_lock; /* To lock changing teardown_skb */
542 bool tdls_chan_switch_prohibited;
543 bool tdls_wider_bw_prohibited;
544
545 /* WMM-AC TSPEC support */
546 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
547 /* Use a separate work struct so that we can do something here
548 * while the sdata->work is flushing the queues, for example.
549 * otherwise, in scenarios where we hardly get any traffic out
550 * on the BE queue, but there's a lot of VO traffic, we might
551 * get stuck in a downgraded situation and flush takes forever.
552 */
553 struct delayed_work tx_tspec_wk;
554
555 /* Information elements from the last transmitted (Re)Association
556 * Request frame.
557 */
558 u8 *assoc_req_ies;
559 size_t assoc_req_ies_len;
560};
561
562struct ieee80211_if_ibss {
563 struct timer_list timer;
564 struct work_struct csa_connection_drop_work;
565
566 unsigned long last_scan_completed;
567
568 u32 basic_rates;
569
570 bool fixed_bssid;
571 bool fixed_channel;
572 bool privacy;
573
574 bool control_port;
575 bool userspace_handles_dfs;
576
577 u8 bssid[ETH_ALEN] __aligned(2);
578 u8 ssid[IEEE80211_MAX_SSID_LEN];
579 u8 ssid_len, ie_len;
580 u8 *ie;
581 struct cfg80211_chan_def chandef;
582
583 unsigned long ibss_join_req;
584 /* probe response/beacon for IBSS */
585 struct beacon_data __rcu *presp;
586
587 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
588 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
589
590 spinlock_t incomplete_lock;
591 struct list_head incomplete_stations;
592
593 enum {
594 IEEE80211_IBSS_MLME_SEARCH,
595 IEEE80211_IBSS_MLME_JOINED,
596 } state;
597};
598
599/**
600 * struct ieee80211_if_ocb - OCB mode state
601 *
602 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
603 * @wrkq_flags: OCB deferred task action
604 * @incomplete_lock: delayed STA insertion lock
605 * @incomplete_stations: list of STAs waiting for delayed insertion
606 * @joined: indication if the interface is connected to an OCB network
607 */
608struct ieee80211_if_ocb {
609 struct timer_list housekeeping_timer;
610 unsigned long wrkq_flags;
611
612 spinlock_t incomplete_lock;
613 struct list_head incomplete_stations;
614
615 bool joined;
616};
617
618/**
619 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
620 *
621 * these declarations define the interface, which enables
622 * vendor-specific mesh synchronization
623 *
624 */
625struct ieee802_11_elems;
626struct ieee80211_mesh_sync_ops {
627 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
628 u16 stype,
629 struct ieee80211_mgmt *mgmt,
630 struct ieee802_11_elems *elems,
631 struct ieee80211_rx_status *rx_status);
632
633 /* should be called with beacon_data under RCU read lock */
634 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
635 struct beacon_data *beacon);
636 /* add other framework functions here */
637};
638
639struct mesh_csa_settings {
640 struct rcu_head rcu_head;
641 struct cfg80211_csa_settings settings;
642};
643
644struct ieee80211_if_mesh {
645 struct timer_list housekeeping_timer;
646 struct timer_list mesh_path_timer;
647 struct timer_list mesh_path_root_timer;
648
649 unsigned long wrkq_flags;
650 unsigned long mbss_changed;
651
652 bool userspace_handles_dfs;
653
654 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
655 size_t mesh_id_len;
656 /* Active Path Selection Protocol Identifier */
657 u8 mesh_pp_id;
658 /* Active Path Selection Metric Identifier */
659 u8 mesh_pm_id;
660 /* Congestion Control Mode Identifier */
661 u8 mesh_cc_id;
662 /* Synchronization Protocol Identifier */
663 u8 mesh_sp_id;
664 /* Authentication Protocol Identifier */
665 u8 mesh_auth_id;
666 /* Local mesh Sequence Number */
667 u32 sn;
668 /* Last used PREQ ID */
669 u32 preq_id;
670 atomic_t mpaths;
671 /* Timestamp of last SN update */
672 unsigned long last_sn_update;
673 /* Time when it's ok to send next PERR */
674 unsigned long next_perr;
675 /* Timestamp of last PREQ sent */
676 unsigned long last_preq;
677 struct mesh_rmc *rmc;
678 spinlock_t mesh_preq_queue_lock;
679 struct mesh_preq_queue preq_queue;
680 int preq_queue_len;
681 struct mesh_stats mshstats;
682 struct mesh_config mshcfg;
683 atomic_t estab_plinks;
684 u32 mesh_seqnum;
685 bool accepting_plinks;
686 int num_gates;
687 struct beacon_data __rcu *beacon;
688 const u8 *ie;
689 u8 ie_len;
690 enum {
691 IEEE80211_MESH_SEC_NONE = 0x0,
692 IEEE80211_MESH_SEC_AUTHED = 0x1,
693 IEEE80211_MESH_SEC_SECURED = 0x2,
694 } security;
695 bool user_mpm;
696 /* Extensible Synchronization Framework */
697 const struct ieee80211_mesh_sync_ops *sync_ops;
698 s64 sync_offset_clockdrift_max;
699 spinlock_t sync_offset_lock;
700 /* mesh power save */
701 enum nl80211_mesh_power_mode nonpeer_pm;
702 int ps_peers_light_sleep;
703 int ps_peers_deep_sleep;
704 struct ps_data ps;
705 /* Channel Switching Support */
706 struct mesh_csa_settings __rcu *csa;
707 enum {
708 IEEE80211_MESH_CSA_ROLE_NONE,
709 IEEE80211_MESH_CSA_ROLE_INIT,
710 IEEE80211_MESH_CSA_ROLE_REPEATER,
711 } csa_role;
712 u8 chsw_ttl;
713 u16 pre_value;
714
715 /* offset from skb->data while building IE */
716 int meshconf_offset;
717
718 struct mesh_table *mesh_paths;
719 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
720 int mesh_paths_generation;
721 int mpp_paths_generation;
722};
723
724#ifdef CONFIG_MAC80211_MESH
725#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
726 do { (msh)->mshstats.name++; } while (0)
727#else
728#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
729 do { } while (0)
730#endif
731
732/**
733 * enum ieee80211_sub_if_data_flags - virtual interface flags
734 *
735 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
736 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
737 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
738 * associated stations and deliver multicast frames both
739 * back to wireless media and to the local net stack.
740 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
741 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
742 */
743enum ieee80211_sub_if_data_flags {
744 IEEE80211_SDATA_ALLMULTI = BIT(0),
745 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
746 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
747 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
748 IEEE80211_SDATA_IN_DRIVER = BIT(5),
749};
750
751/**
752 * enum ieee80211_sdata_state_bits - virtual interface state bits
753 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
754 * mirrors netif_running() but is separate for interface type
755 * change handling while the interface is up
756 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
757 * mode, so queues are stopped
758 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
759 * to offchannel, reset when offchannel returns
760 */
761enum ieee80211_sdata_state_bits {
762 SDATA_STATE_RUNNING,
763 SDATA_STATE_OFFCHANNEL,
764 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
765};
766
767/**
768 * enum ieee80211_chanctx_mode - channel context configuration mode
769 *
770 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
771 * multiple interfaces
772 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
773 * only by a single interface. This can be used for example for
774 * non-fixed channel IBSS.
775 */
776enum ieee80211_chanctx_mode {
777 IEEE80211_CHANCTX_SHARED,
778 IEEE80211_CHANCTX_EXCLUSIVE
779};
780
781/**
782 * enum ieee80211_chanctx_replace_state - channel context replacement state
783 *
784 * This is used for channel context in-place reservations that require channel
785 * context switch/swap.
786 *
787 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
788 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
789 * by a (not yet registered) channel context pointed by %replace_ctx.
790 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
791 * replaces an existing channel context pointed to by %replace_ctx.
792 */
793enum ieee80211_chanctx_replace_state {
794 IEEE80211_CHANCTX_REPLACE_NONE,
795 IEEE80211_CHANCTX_WILL_BE_REPLACED,
796 IEEE80211_CHANCTX_REPLACES_OTHER,
797};
798
799struct ieee80211_chanctx {
800 struct list_head list;
801 struct rcu_head rcu_head;
802
803 struct list_head assigned_vifs;
804 struct list_head reserved_vifs;
805
806 enum ieee80211_chanctx_replace_state replace_state;
807 struct ieee80211_chanctx *replace_ctx;
808
809 enum ieee80211_chanctx_mode mode;
810 bool driver_present;
811
812 struct ieee80211_chanctx_conf conf;
813};
814
815struct mac80211_qos_map {
816 struct cfg80211_qos_map qos_map;
817 struct rcu_head rcu_head;
818};
819
820enum txq_info_flags {
821 IEEE80211_TXQ_STOP,
822 IEEE80211_TXQ_AMPDU,
823 IEEE80211_TXQ_NO_AMSDU,
824 IEEE80211_TXQ_STOP_NETIF_TX,
825};
826
827/**
828 * struct txq_info - per tid queue
829 *
830 * @tin: contains packets split into multiple flows
831 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
832 * a fq_flow which is already owned by a different tin
833 * @def_cvars: codel vars for @def_flow
834 * @schedule_order: used with ieee80211_local->active_txqs
835 * @frags: used to keep fragments created after dequeue
836 */
837struct txq_info {
838 struct fq_tin tin;
839 struct codel_vars def_cvars;
840 struct codel_stats cstats;
841 struct rb_node schedule_order;
842
843 struct sk_buff_head frags;
844 unsigned long flags;
845
846 /* keep last! */
847 struct ieee80211_txq txq;
848};
849
850struct ieee80211_if_mntr {
851 u32 flags;
852 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
853
854 struct list_head list;
855};
856
857/**
858 * struct ieee80211_if_nan - NAN state
859 *
860 * @conf: current NAN configuration
861 * @func_ids: a bitmap of available instance_id's
862 */
863struct ieee80211_if_nan {
864 struct cfg80211_nan_conf conf;
865
866 /* protects function_inst_ids */
867 spinlock_t func_lock;
868 struct idr function_inst_ids;
869};
870
871struct ieee80211_sub_if_data {
872 struct list_head list;
873
874 struct wireless_dev wdev;
875
876 /* keys */
877 struct list_head key_list;
878
879 /* count for keys needing tailroom space allocation */
880 int crypto_tx_tailroom_needed_cnt;
881 int crypto_tx_tailroom_pending_dec;
882 struct delayed_work dec_tailroom_needed_wk;
883
884 struct net_device *dev;
885 struct ieee80211_local *local;
886
887 unsigned int flags;
888
889 unsigned long state;
890
891 char name[IFNAMSIZ];
892
893 struct ieee80211_fragment_cache frags;
894
895 /* TID bitmap for NoAck policy */
896 u16 noack_map;
897
898 /* bit field of ACM bits (BIT(802.1D tag)) */
899 u8 wmm_acm;
900
901 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS +
902 NUM_DEFAULT_MGMT_KEYS +
903 NUM_DEFAULT_BEACON_KEYS];
904 struct ieee80211_key __rcu *default_unicast_key;
905 struct ieee80211_key __rcu *default_multicast_key;
906 struct ieee80211_key __rcu *default_mgmt_key;
907 struct ieee80211_key __rcu *default_beacon_key;
908
909 u16 sequence_number;
910 __be16 control_port_protocol;
911 bool control_port_no_encrypt;
912 bool control_port_no_preauth;
913 bool control_port_over_nl80211;
914 int encrypt_headroom;
915
916 atomic_t num_tx_queued;
917 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
918 struct mac80211_qos_map __rcu *qos_map;
919
920 struct airtime_info airtime[IEEE80211_NUM_ACS];
921
922 struct work_struct csa_finalize_work;
923 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
924 struct cfg80211_chan_def csa_chandef;
925
926 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
927 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
928
929 /* context reservation -- protected with chanctx_mtx */
930 struct ieee80211_chanctx *reserved_chanctx;
931 struct cfg80211_chan_def reserved_chandef;
932 bool reserved_radar_required;
933 bool reserved_ready;
934
935 /* used to reconfigure hardware SM PS */
936 struct work_struct recalc_smps;
937
938 struct work_struct work;
939 struct sk_buff_head skb_queue;
940
941 u8 needed_rx_chains;
942 enum ieee80211_smps_mode smps_mode;
943
944 int user_power_level; /* in dBm */
945 int ap_power_level; /* in dBm */
946
947 bool radar_required;
948 struct delayed_work dfs_cac_timer_work;
949
950 /*
951 * AP this belongs to: self in AP mode and
952 * corresponding AP in VLAN mode, NULL for
953 * all others (might be needed later in IBSS)
954 */
955 struct ieee80211_if_ap *bss;
956
957 /* bitmap of allowed (non-MCS) rate indexes for rate control */
958 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
959
960 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
961 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
962
963 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
964 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
965
966 /* Beacon frame (non-MCS) rate (as a bitmap) */
967 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
968 bool beacon_rate_set;
969
970 union {
971 struct ieee80211_if_ap ap;
972 struct ieee80211_if_vlan vlan;
973 struct ieee80211_if_managed mgd;
974 struct ieee80211_if_ibss ibss;
975 struct ieee80211_if_mesh mesh;
976 struct ieee80211_if_ocb ocb;
977 struct ieee80211_if_mntr mntr;
978 struct ieee80211_if_nan nan;
979 } u;
980
981#ifdef CONFIG_MAC80211_DEBUGFS
982 struct {
983 struct dentry *subdir_stations;
984 struct dentry *default_unicast_key;
985 struct dentry *default_multicast_key;
986 struct dentry *default_mgmt_key;
987 struct dentry *default_beacon_key;
988 } debugfs;
989#endif
990
991 /* must be last, dynamically sized area in this! */
992 struct ieee80211_vif vif;
993};
994
995static inline
996struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
997{
998 return container_of(p, struct ieee80211_sub_if_data, vif);
999}
1000
1001static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1002 __acquires(&sdata->wdev.mtx)
1003{
1004 mutex_lock(&sdata->wdev.mtx);
1005 __acquire(&sdata->wdev.mtx);
1006}
1007
1008static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1009 __releases(&sdata->wdev.mtx)
1010{
1011 mutex_unlock(&sdata->wdev.mtx);
1012 __release(&sdata->wdev.mtx);
1013}
1014
1015#define sdata_dereference(p, sdata) \
1016 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1017
1018static inline void
1019sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1020{
1021 lockdep_assert_held(&sdata->wdev.mtx);
1022}
1023
1024static inline int
1025ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1026{
1027 switch (chandef->width) {
1028 case NL80211_CHAN_WIDTH_5:
1029 return 2;
1030 case NL80211_CHAN_WIDTH_10:
1031 return 1;
1032 default:
1033 return 0;
1034 }
1035}
1036
1037static inline int
1038ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1039{
1040 struct ieee80211_chanctx_conf *chanctx_conf;
1041 int shift = 0;
1042
1043 rcu_read_lock();
1044 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1045 if (chanctx_conf)
1046 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1047 rcu_read_unlock();
1048
1049 return shift;
1050}
1051
1052enum {
1053 IEEE80211_RX_MSG = 1,
1054 IEEE80211_TX_STATUS_MSG = 2,
1055};
1056
1057enum queue_stop_reason {
1058 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1059 IEEE80211_QUEUE_STOP_REASON_PS,
1060 IEEE80211_QUEUE_STOP_REASON_CSA,
1061 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1062 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1063 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1064 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1065 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1066 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1067 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1068 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1069
1070 IEEE80211_QUEUE_STOP_REASONS,
1071};
1072
1073#ifdef CONFIG_MAC80211_LEDS
1074struct tpt_led_trigger {
1075 char name[32];
1076 const struct ieee80211_tpt_blink *blink_table;
1077 unsigned int blink_table_len;
1078 struct timer_list timer;
1079 struct ieee80211_local *local;
1080 unsigned long prev_traffic;
1081 unsigned long tx_bytes, rx_bytes;
1082 unsigned int active, want;
1083 bool running;
1084};
1085#endif
1086
1087/**
1088 * mac80211 scan flags - currently active scan mode
1089 *
1090 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1091 * well be on the operating channel
1092 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1093 * determine if we are on the operating channel or not
1094 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1095 * channel. This should not interrupt normal traffic.
1096 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1097 * that the scan completed.
1098 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1099 * a scan complete for an aborted scan.
1100 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1101 * cancelled.
1102 */
1103enum {
1104 SCAN_SW_SCANNING,
1105 SCAN_HW_SCANNING,
1106 SCAN_ONCHANNEL_SCANNING,
1107 SCAN_COMPLETED,
1108 SCAN_ABORTED,
1109 SCAN_HW_CANCELLED,
1110};
1111
1112/**
1113 * enum mac80211_scan_state - scan state machine states
1114 *
1115 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1116 * determines if we should keep on scanning or switch back to the
1117 * operating channel
1118 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1119 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1120 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1121 * send out data
1122 * @SCAN_RESUME: Resume the scan and scan the next channel
1123 * @SCAN_ABORT: Abort the scan and go back to operating channel
1124 */
1125enum mac80211_scan_state {
1126 SCAN_DECISION,
1127 SCAN_SET_CHANNEL,
1128 SCAN_SEND_PROBE,
1129 SCAN_SUSPEND,
1130 SCAN_RESUME,
1131 SCAN_ABORT,
1132};
1133
1134/**
1135 * struct airtime_sched_info - state used for airtime scheduling and AQL
1136 *
1137 * @lock: spinlock that protects all the fields in this struct
1138 * @active_txqs: rbtree of currently backlogged queues, sorted by virtual time
1139 * @schedule_pos: the current position maintained while a driver walks the tree
1140 * with ieee80211_next_txq()
1141 * @active_list: list of struct airtime_info structs that were active within
1142 * the last AIRTIME_ACTIVE_DURATION (100 ms), used to compute
1143 * weight_sum
1144 * @last_weight_update: used for rate limiting walking active_list
1145 * @last_schedule_time: tracks the last time a transmission was scheduled; used
1146 * for catching up v_t if no stations are eligible for
1147 * transmission.
1148 * @v_t: global virtual time; queues with v_t < this are eligible for
1149 * transmission
1150 * @weight_sum: total sum of all active stations used for dividing airtime
1151 * @weight_sum_reciprocal: reciprocal of weight_sum (to avoid divisions in fast
1152 * path - see comment above
1153 * IEEE80211_RECIPROCAL_DIVISOR_64)
1154 * @aql_txq_limit_low: AQL limit when total outstanding airtime
1155 * is < IEEE80211_AQL_THRESHOLD
1156 * @aql_txq_limit_high: AQL limit when total outstanding airtime
1157 * is > IEEE80211_AQL_THRESHOLD
1158 */
1159struct airtime_sched_info {
1160 spinlock_t lock;
1161 struct rb_root_cached active_txqs;
1162 struct rb_node *schedule_pos;
1163 struct list_head active_list;
1164 u64 last_weight_update;
1165 u64 last_schedule_activity;
1166 u64 v_t;
1167 u64 weight_sum;
1168 u64 weight_sum_reciprocal;
1169 u32 aql_txq_limit_low;
1170 u32 aql_txq_limit_high;
1171};
1172DECLARE_STATIC_KEY_FALSE(aql_disable);
1173
1174struct ieee80211_local {
1175 /* embed the driver visible part.
1176 * don't cast (use the static inlines below), but we keep
1177 * it first anyway so they become a no-op */
1178 struct ieee80211_hw hw;
1179
1180 struct fq fq;
1181 struct codel_vars *cvars;
1182 struct codel_params cparams;
1183
1184 /* protects active_txqs and txqi->schedule_order */
1185 struct airtime_sched_info airtime[IEEE80211_NUM_ACS];
1186 u16 airtime_flags;
1187 u32 aql_threshold;
1188 atomic_t aql_total_pending_airtime;
1189
1190 const struct ieee80211_ops *ops;
1191
1192 /*
1193 * private workqueue to mac80211. mac80211 makes this accessible
1194 * via ieee80211_queue_work()
1195 */
1196 struct workqueue_struct *workqueue;
1197
1198 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1199 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1200 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1201 spinlock_t queue_stop_reason_lock;
1202
1203 int open_count;
1204 int monitors, cooked_mntrs;
1205 /* number of interfaces with corresponding FIF_ flags */
1206 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1207 fif_probe_req;
1208 bool probe_req_reg;
1209 bool rx_mcast_action_reg;
1210 unsigned int filter_flags; /* FIF_* */
1211
1212 bool wiphy_ciphers_allocated;
1213
1214 bool use_chanctx;
1215
1216 /* protects the aggregated multicast list and filter calls */
1217 spinlock_t filter_lock;
1218
1219 /* used for uploading changed mc list */
1220 struct work_struct reconfig_filter;
1221
1222 /* aggregated multicast list */
1223 struct netdev_hw_addr_list mc_list;
1224
1225 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1226
1227 /*
1228 * suspended is true if we finished all the suspend _and_ we have
1229 * not yet come up from resume. This is to be used by mac80211
1230 * to ensure driver sanity during suspend and mac80211's own
1231 * sanity. It can eventually be used for WoW as well.
1232 */
1233 bool suspended;
1234
1235 /*
1236 * Resuming is true while suspended, but when we're reprogramming the
1237 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1238 * again even though some other parts of the stack are still suspended
1239 * and we still drop received frames to avoid waking the stack.
1240 */
1241 bool resuming;
1242
1243 /*
1244 * quiescing is true during the suspend process _only_ to
1245 * ease timer cancelling etc.
1246 */
1247 bool quiescing;
1248
1249 /* device is started */
1250 bool started;
1251
1252 /* device is during a HW reconfig */
1253 bool in_reconfig;
1254
1255 /* wowlan is enabled -- don't reconfig on resume */
1256 bool wowlan;
1257
1258 struct work_struct radar_detected_work;
1259
1260 /* number of RX chains the hardware has */
1261 u8 rx_chains;
1262
1263 /* bitmap of which sbands were copied */
1264 u8 sband_allocated;
1265
1266 int tx_headroom; /* required headroom for hardware/radiotap */
1267
1268 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1269 * added to skb_queue will be processed, but frames in
1270 * skb_queue_unreliable may be dropped if the total length of these
1271 * queues increases over the limit. */
1272#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1273 struct tasklet_struct tasklet;
1274 struct sk_buff_head skb_queue;
1275 struct sk_buff_head skb_queue_unreliable;
1276
1277 spinlock_t rx_path_lock;
1278
1279 /* Station data */
1280 /*
1281 * The mutex only protects the list, hash table and
1282 * counter, reads are done with RCU.
1283 */
1284 struct mutex sta_mtx;
1285 spinlock_t tim_lock;
1286 unsigned long num_sta;
1287 struct list_head sta_list;
1288 struct rhltable sta_hash;
1289 struct timer_list sta_cleanup;
1290 int sta_generation;
1291
1292 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1293 struct tasklet_struct tx_pending_tasklet;
1294 struct tasklet_struct wake_txqs_tasklet;
1295
1296 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1297
1298 /* number of interfaces with allmulti RX */
1299 atomic_t iff_allmultis;
1300
1301 struct rate_control_ref *rate_ctrl;
1302
1303 struct arc4_ctx wep_tx_ctx;
1304 struct arc4_ctx wep_rx_ctx;
1305 u32 wep_iv;
1306
1307 /* see iface.c */
1308 struct list_head interfaces;
1309 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1310 struct mutex iflist_mtx;
1311
1312 /*
1313 * Key mutex, protects sdata's key_list and sta_info's
1314 * key pointers and ptk_idx (write access, they're RCU.)
1315 */
1316 struct mutex key_mtx;
1317
1318 /* mutex for scan and work locking */
1319 struct mutex mtx;
1320
1321 /* Scanning and BSS list */
1322 unsigned long scanning;
1323 struct cfg80211_ssid scan_ssid;
1324 struct cfg80211_scan_request *int_scan_req;
1325 struct cfg80211_scan_request __rcu *scan_req;
1326 struct ieee80211_scan_request *hw_scan_req;
1327 struct cfg80211_chan_def scan_chandef;
1328 enum nl80211_band hw_scan_band;
1329 int scan_channel_idx;
1330 int scan_ies_len;
1331 int hw_scan_ies_bufsize;
1332 struct cfg80211_scan_info scan_info;
1333
1334 struct work_struct sched_scan_stopped_work;
1335 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1336 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1337 u8 scan_addr[ETH_ALEN];
1338
1339 unsigned long leave_oper_channel_time;
1340 enum mac80211_scan_state next_scan_state;
1341 struct delayed_work scan_work;
1342 struct ieee80211_sub_if_data __rcu *scan_sdata;
1343 /* For backward compatibility only -- do not use */
1344 struct cfg80211_chan_def _oper_chandef;
1345
1346 /* Temporary remain-on-channel for off-channel operations */
1347 struct ieee80211_channel *tmp_channel;
1348
1349 /* channel contexts */
1350 struct list_head chanctx_list;
1351 struct mutex chanctx_mtx;
1352
1353#ifdef CONFIG_MAC80211_LEDS
1354 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1355 struct led_trigger tpt_led;
1356 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1357 atomic_t radio_led_active, tpt_led_active;
1358 struct tpt_led_trigger *tpt_led_trigger;
1359#endif
1360
1361#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1362 /* SNMP counters */
1363 /* dot11CountersTable */
1364 u32 dot11TransmittedFragmentCount;
1365 u32 dot11MulticastTransmittedFrameCount;
1366 u32 dot11FailedCount;
1367 u32 dot11RetryCount;
1368 u32 dot11MultipleRetryCount;
1369 u32 dot11FrameDuplicateCount;
1370 u32 dot11ReceivedFragmentCount;
1371 u32 dot11MulticastReceivedFrameCount;
1372 u32 dot11TransmittedFrameCount;
1373
1374 /* TX/RX handler statistics */
1375 unsigned int tx_handlers_drop;
1376 unsigned int tx_handlers_queued;
1377 unsigned int tx_handlers_drop_wep;
1378 unsigned int tx_handlers_drop_not_assoc;
1379 unsigned int tx_handlers_drop_unauth_port;
1380 unsigned int rx_handlers_drop;
1381 unsigned int rx_handlers_queued;
1382 unsigned int rx_handlers_drop_nullfunc;
1383 unsigned int rx_handlers_drop_defrag;
1384 unsigned int tx_expand_skb_head;
1385 unsigned int tx_expand_skb_head_cloned;
1386 unsigned int rx_expand_skb_head_defrag;
1387 unsigned int rx_handlers_fragments;
1388 unsigned int tx_status_drop;
1389#define I802_DEBUG_INC(c) (c)++
1390#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1391#define I802_DEBUG_INC(c) do { } while (0)
1392#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1393
1394
1395 int total_ps_buffered; /* total number of all buffered unicast and
1396 * multicast packets for power saving stations
1397 */
1398
1399 bool pspolling;
1400 /*
1401 * PS can only be enabled when we have exactly one managed
1402 * interface (and monitors) in PS, this then points there.
1403 */
1404 struct ieee80211_sub_if_data *ps_sdata;
1405 struct work_struct dynamic_ps_enable_work;
1406 struct work_struct dynamic_ps_disable_work;
1407 struct timer_list dynamic_ps_timer;
1408 struct notifier_block ifa_notifier;
1409 struct notifier_block ifa6_notifier;
1410
1411 /*
1412 * The dynamic ps timeout configured from user space via WEXT -
1413 * this will override whatever chosen by mac80211 internally.
1414 */
1415 int dynamic_ps_forced_timeout;
1416
1417 int user_power_level; /* in dBm, for all interfaces */
1418
1419 enum ieee80211_smps_mode smps_mode;
1420
1421 struct work_struct restart_work;
1422
1423#ifdef CONFIG_MAC80211_DEBUGFS
1424 struct local_debugfsdentries {
1425 struct dentry *rcdir;
1426 struct dentry *keys;
1427 } debugfs;
1428 bool force_tx_status;
1429#endif
1430
1431 /*
1432 * Remain-on-channel support
1433 */
1434 struct delayed_work roc_work;
1435 struct list_head roc_list;
1436 struct work_struct hw_roc_start, hw_roc_done;
1437 unsigned long hw_roc_start_time;
1438 u64 roc_cookie_counter;
1439
1440 struct idr ack_status_frames;
1441 spinlock_t ack_status_lock;
1442
1443 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1444
1445 /* virtual monitor interface */
1446 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1447 struct cfg80211_chan_def monitor_chandef;
1448
1449 /* extended capabilities provided by mac80211 */
1450 u8 ext_capa[8];
1451};
1452
1453static inline struct ieee80211_sub_if_data *
1454IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1455{
1456 return netdev_priv(dev);
1457}
1458
1459static inline struct ieee80211_sub_if_data *
1460IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1461{
1462 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1463}
1464
1465static inline struct ieee80211_supported_band *
1466ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1467{
1468 struct ieee80211_local *local = sdata->local;
1469 struct ieee80211_chanctx_conf *chanctx_conf;
1470 enum nl80211_band band;
1471
1472 rcu_read_lock();
1473 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1474
1475 if (!chanctx_conf) {
1476 rcu_read_unlock();
1477 return NULL;
1478 }
1479
1480 band = chanctx_conf->def.chan->band;
1481 rcu_read_unlock();
1482
1483 return local->hw.wiphy->bands[band];
1484}
1485
1486/* this struct holds the value parsing from channel switch IE */
1487struct ieee80211_csa_ie {
1488 struct cfg80211_chan_def chandef;
1489 u8 mode;
1490 u8 count;
1491 u8 ttl;
1492 u16 pre_value;
1493 u16 reason_code;
1494 u32 max_switch_time;
1495};
1496
1497/* Parsed Information Elements */
1498struct ieee802_11_elems {
1499 const u8 *ie_start;
1500 size_t total_len;
1501
1502 /* pointers to IEs */
1503 const struct ieee80211_tdls_lnkie *lnk_id;
1504 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1505 const u8 *ext_capab;
1506 const u8 *ssid;
1507 const u8 *supp_rates;
1508 const u8 *ds_params;
1509 const struct ieee80211_tim_ie *tim;
1510 const u8 *challenge;
1511 const u8 *rsn;
1512 const u8 *rsnx;
1513 const u8 *erp_info;
1514 const u8 *ext_supp_rates;
1515 const u8 *wmm_info;
1516 const u8 *wmm_param;
1517 const struct ieee80211_ht_cap *ht_cap_elem;
1518 const struct ieee80211_ht_operation *ht_operation;
1519 const struct ieee80211_vht_cap *vht_cap_elem;
1520 const struct ieee80211_vht_operation *vht_operation;
1521 const struct ieee80211_meshconf_ie *mesh_config;
1522 const u8 *he_cap;
1523 const struct ieee80211_he_operation *he_operation;
1524 const struct ieee80211_he_spr *he_spr;
1525 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1526 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1527 const u8 *uora_element;
1528 const u8 *mesh_id;
1529 const u8 *peering;
1530 const __le16 *awake_window;
1531 const u8 *preq;
1532 const u8 *prep;
1533 const u8 *perr;
1534 const struct ieee80211_rann_ie *rann;
1535 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1536 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1537 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1538 const u8 *max_channel_switch_time;
1539 const u8 *country_elem;
1540 const u8 *pwr_constr_elem;
1541 const u8 *cisco_dtpc_elem;
1542 const struct ieee80211_timeout_interval_ie *timeout_int;
1543 const u8 *opmode_notif;
1544 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1545 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1546 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1547 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1548 const struct ieee80211_bssid_index *bssid_index;
1549 u8 max_bssid_indicator;
1550 u8 dtim_count;
1551 u8 dtim_period;
1552 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1553 const struct ieee80211_s1g_cap *s1g_capab;
1554 const struct ieee80211_s1g_oper_ie *s1g_oper;
1555 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1556 const struct ieee80211_aid_response_ie *aid_resp;
1557
1558 /* length of them, respectively */
1559 u8 ext_capab_len;
1560 u8 ssid_len;
1561 u8 supp_rates_len;
1562 u8 tim_len;
1563 u8 challenge_len;
1564 u8 rsn_len;
1565 u8 rsnx_len;
1566 u8 ext_supp_rates_len;
1567 u8 wmm_info_len;
1568 u8 wmm_param_len;
1569 u8 he_cap_len;
1570 u8 mesh_id_len;
1571 u8 peering_len;
1572 u8 preq_len;
1573 u8 prep_len;
1574 u8 perr_len;
1575 u8 country_elem_len;
1576 u8 bssid_index_len;
1577
1578 /* whether a parse error occurred while retrieving these elements */
1579 bool parse_error;
1580};
1581
1582static inline struct ieee80211_local *hw_to_local(
1583 struct ieee80211_hw *hw)
1584{
1585 return container_of(hw, struct ieee80211_local, hw);
1586}
1587
1588static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1589{
1590 return container_of(txq, struct txq_info, txq);
1591}
1592
1593static inline bool txq_has_queue(struct ieee80211_txq *txq)
1594{
1595 struct txq_info *txqi = to_txq_info(txq);
1596
1597 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1598}
1599
1600static inline struct airtime_info *to_airtime_info(struct ieee80211_txq *txq)
1601{
1602 struct ieee80211_sub_if_data *sdata;
1603 struct sta_info *sta;
1604
1605 if (txq->sta) {
1606 sta = container_of(txq->sta, struct sta_info, sta);
1607 return &sta->airtime[txq->ac];
1608 }
1609
1610 sdata = vif_to_sdata(txq->vif);
1611 return &sdata->airtime[txq->ac];
1612}
1613
1614/* To avoid divisions in the fast path, we keep pre-computed reciprocals for
1615 * airtime weight calculations. There are two different weights to keep track
1616 * of: The per-station weight and the sum of weights per phy.
1617 *
1618 * For the per-station weights (kept in airtime_info below), we use 32-bit
1619 * reciprocals with a devisor of 2^19. This lets us keep the multiplications and
1620 * divisions for the station weights as 32-bit operations at the cost of a bit
1621 * of rounding error for high weights; but the choice of divisor keeps rounding
1622 * errors <10% for weights <2^15, assuming no more than 8ms of airtime is
1623 * reported at a time.
1624 *
1625 * For the per-phy sum of weights the values can get higher, so we use 64-bit
1626 * operations for those with a 32-bit divisor, which should avoid any
1627 * significant rounding errors.
1628 */
1629#define IEEE80211_RECIPROCAL_DIVISOR_64 0x100000000ULL
1630#define IEEE80211_RECIPROCAL_SHIFT_64 32
1631#define IEEE80211_RECIPROCAL_DIVISOR_32 0x80000U
1632#define IEEE80211_RECIPROCAL_SHIFT_32 19
1633
1634static inline void airtime_weight_set(struct airtime_info *air_info, u16 weight)
1635{
1636 if (air_info->weight == weight)
1637 return;
1638
1639 air_info->weight = weight;
1640 if (weight) {
1641 air_info->weight_reciprocal =
1642 IEEE80211_RECIPROCAL_DIVISOR_32 / weight;
1643 } else {
1644 air_info->weight_reciprocal = 0;
1645 }
1646}
1647
1648static inline void airtime_weight_sum_set(struct airtime_sched_info *air_sched,
1649 int weight_sum)
1650{
1651 if (air_sched->weight_sum == weight_sum)
1652 return;
1653
1654 air_sched->weight_sum = weight_sum;
1655 if (air_sched->weight_sum) {
1656 air_sched->weight_sum_reciprocal = IEEE80211_RECIPROCAL_DIVISOR_64;
1657 do_div(air_sched->weight_sum_reciprocal, air_sched->weight_sum);
1658 } else {
1659 air_sched->weight_sum_reciprocal = 0;
1660 }
1661}
1662
1663/* A problem when trying to enforce airtime fairness is that we want to divide
1664 * the airtime between the currently *active* stations. However, basing this on
1665 * the instantaneous queue state of stations doesn't work, as queues tend to
1666 * oscillate very quickly between empty and occupied, leading to the scheduler
1667 * thinking only a single station is active when deciding whether to allow
1668 * transmission (and thus not throttling correctly).
1669 *
1670 * To fix this we use a timer-based notion of activity: a station is considered
1671 * active if it has been scheduled within the last 100 ms; we keep a separate
1672 * list of all the stations considered active in this manner, and lazily update
1673 * the total weight of active stations from this list (filtering the stations in
1674 * the list by their 'last active' time).
1675 *
1676 * We add one additional safeguard to guard against stations that manage to get
1677 * scheduled every 100 ms but don't transmit a lot of data, and thus don't use
1678 * up any airtime. Such stations would be able to get priority for an extended
1679 * period of time if they do start transmitting at full capacity again, and so
1680 * we add an explicit maximum for how far behind a station is allowed to fall in
1681 * the virtual airtime domain. This limit is set to a relatively high value of
1682 * 20 ms because the main mechanism for catching up idle stations is the active
1683 * state as described above; i.e., the hard limit should only be hit in
1684 * pathological cases.
1685 */
1686#define AIRTIME_ACTIVE_DURATION (100 * NSEC_PER_MSEC)
1687#define AIRTIME_MAX_BEHIND 20000 /* 20 ms */
1688
1689static inline bool airtime_is_active(struct airtime_info *air_info, u64 now)
1690{
1691 return air_info->last_scheduled >= now - AIRTIME_ACTIVE_DURATION;
1692}
1693
1694static inline void airtime_set_active(struct airtime_sched_info *air_sched,
1695 struct airtime_info *air_info, u64 now)
1696{
1697 air_info->last_scheduled = now;
1698 air_sched->last_schedule_activity = now;
1699 list_move_tail(&air_info->list, &air_sched->active_list);
1700}
1701
1702static inline bool airtime_catchup_v_t(struct airtime_sched_info *air_sched,
1703 u64 v_t, u64 now)
1704{
1705 air_sched->v_t = v_t;
1706 return true;
1707}
1708
1709static inline void init_airtime_info(struct airtime_info *air_info,
1710 struct airtime_sched_info *air_sched)
1711{
1712 atomic_set(&air_info->aql_tx_pending, 0);
1713 air_info->aql_limit_low = air_sched->aql_txq_limit_low;
1714 air_info->aql_limit_high = air_sched->aql_txq_limit_high;
1715 airtime_weight_set(air_info, IEEE80211_DEFAULT_AIRTIME_WEIGHT);
1716 INIT_LIST_HEAD(&air_info->list);
1717}
1718
1719static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1720{
1721 return ether_addr_equal(raddr, addr) ||
1722 is_broadcast_ether_addr(raddr);
1723}
1724
1725static inline bool
1726ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1727{
1728 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1729 status->flag & RX_FLAG_MACTIME_END);
1730 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1731 RX_FLAG_MACTIME_PLCP_START));
1732}
1733
1734void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1735void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1736
1737/* This function returns the number of multicast stations connected to this
1738 * interface. It returns -1 if that number is not tracked, that is for netdevs
1739 * not in AP or AP_VLAN mode or when using 4addr.
1740 */
1741static inline int
1742ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1743{
1744 if (sdata->vif.type == NL80211_IFTYPE_AP)
1745 return atomic_read(&sdata->u.ap.num_mcast_sta);
1746 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1747 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1748 return -1;
1749}
1750
1751u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1752 struct ieee80211_rx_status *status,
1753 unsigned int mpdu_len,
1754 unsigned int mpdu_offset);
1755int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1756void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1757void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1758 u32 changed);
1759void ieee80211_configure_filter(struct ieee80211_local *local);
1760u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1761
1762u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1763int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1764 u64 *cookie, gfp_t gfp);
1765
1766void ieee80211_check_fast_rx(struct sta_info *sta);
1767void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1768void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1769void ieee80211_clear_fast_rx(struct sta_info *sta);
1770
1771/* STA code */
1772void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1773int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1774 struct cfg80211_auth_request *req);
1775int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1776 struct cfg80211_assoc_request *req);
1777int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1778 struct cfg80211_deauth_request *req);
1779int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1780 struct cfg80211_disassoc_request *req);
1781void ieee80211_send_pspoll(struct ieee80211_local *local,
1782 struct ieee80211_sub_if_data *sdata);
1783void ieee80211_recalc_ps(struct ieee80211_local *local);
1784void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1785int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1786void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1787void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1788 struct sk_buff *skb);
1789void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1790 struct sk_buff *skb);
1791void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1792void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1793void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1794void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1795 __le16 fc, bool acked);
1796void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1797void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1798void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1799void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1800 u8 *bssid, u8 reason, bool tx);
1801
1802/* IBSS code */
1803void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1804void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1805void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1806 const u8 *bssid, const u8 *addr, u32 supp_rates);
1807int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1808 struct cfg80211_ibss_params *params);
1809int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1810void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1811void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1812 struct sk_buff *skb);
1813int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1814 struct cfg80211_csa_settings *csa_settings);
1815int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1816void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1817
1818/* OCB code */
1819void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1820void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1821 const u8 *bssid, const u8 *addr, u32 supp_rates);
1822void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1823int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1824 struct ocb_setup *setup);
1825int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1826
1827/* mesh code */
1828void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1829void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1830 struct sk_buff *skb);
1831int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1832 struct cfg80211_csa_settings *csa_settings);
1833int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1834
1835/* scan/BSS handling */
1836void ieee80211_scan_work(struct work_struct *work);
1837int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1838 const u8 *ssid, u8 ssid_len,
1839 struct ieee80211_channel **channels,
1840 unsigned int n_channels,
1841 enum nl80211_bss_scan_width scan_width);
1842int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1843 struct cfg80211_scan_request *req);
1844void ieee80211_scan_cancel(struct ieee80211_local *local);
1845void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1846void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1847
1848void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1849struct ieee80211_bss *
1850ieee80211_bss_info_update(struct ieee80211_local *local,
1851 struct ieee80211_rx_status *rx_status,
1852 struct ieee80211_mgmt *mgmt,
1853 size_t len,
1854 struct ieee80211_channel *channel);
1855void ieee80211_rx_bss_put(struct ieee80211_local *local,
1856 struct ieee80211_bss *bss);
1857
1858/* scheduled scan handling */
1859int
1860__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1861 struct cfg80211_sched_scan_request *req);
1862int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1863 struct cfg80211_sched_scan_request *req);
1864int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1865void ieee80211_sched_scan_end(struct ieee80211_local *local);
1866void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1867
1868/* off-channel/mgmt-tx */
1869void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1870void ieee80211_offchannel_return(struct ieee80211_local *local);
1871void ieee80211_roc_setup(struct ieee80211_local *local);
1872void ieee80211_start_next_roc(struct ieee80211_local *local);
1873void ieee80211_roc_purge(struct ieee80211_local *local,
1874 struct ieee80211_sub_if_data *sdata);
1875int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1876 struct ieee80211_channel *chan,
1877 unsigned int duration, u64 *cookie);
1878int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1879 struct wireless_dev *wdev, u64 cookie);
1880int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1881 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1882int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1883 struct wireless_dev *wdev, u64 cookie);
1884
1885/* channel switch handling */
1886void ieee80211_csa_finalize_work(struct work_struct *work);
1887int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1888 struct cfg80211_csa_settings *params);
1889
1890/* interface handling */
1891#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1892 NETIF_F_HW_CSUM | NETIF_F_SG | \
1893 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
1894#define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1895#define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1896 MAC80211_SUPPORTED_FEATURES_RX)
1897
1898int ieee80211_iface_init(void);
1899void ieee80211_iface_exit(void);
1900int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1901 unsigned char name_assign_type,
1902 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1903 struct vif_params *params);
1904int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1905 enum nl80211_iftype type);
1906void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1907void ieee80211_remove_interfaces(struct ieee80211_local *local);
1908u32 ieee80211_idle_off(struct ieee80211_local *local);
1909void ieee80211_recalc_idle(struct ieee80211_local *local);
1910void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1911 const int offset);
1912int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1913void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1914int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1915void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1916
1917bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1918void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1919 bool update_bss);
1920void ieee80211_recalc_offload(struct ieee80211_local *local);
1921
1922static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1923{
1924 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1925}
1926
1927/* tx handling */
1928void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1929void ieee80211_tx_pending(struct tasklet_struct *t);
1930netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1931 struct net_device *dev);
1932netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1933 struct net_device *dev);
1934netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
1935 struct net_device *dev);
1936void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1937 struct net_device *dev,
1938 u32 info_flags,
1939 u32 ctrl_flags,
1940 u64 *cookie);
1941void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1942 struct sk_buff_head *skbs);
1943struct sk_buff *
1944ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1945 struct sk_buff *skb, u32 info_flags);
1946void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1947 struct ieee80211_supported_band *sband,
1948 int retry_count, int shift, bool send_to_cooked,
1949 struct ieee80211_tx_status *status);
1950
1951void ieee80211_check_fast_xmit(struct sta_info *sta);
1952void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1953void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1954void ieee80211_clear_fast_xmit(struct sta_info *sta);
1955int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
1956 const u8 *buf, size_t len,
1957 const u8 *dest, __be16 proto, bool unencrypted,
1958 u64 *cookie);
1959int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
1960 const u8 *buf, size_t len);
1961void ieee80211_resort_txq(struct ieee80211_hw *hw,
1962 struct ieee80211_txq *txq);
1963void ieee80211_unschedule_txq(struct ieee80211_hw *hw,
1964 struct ieee80211_txq *txq,
1965 bool purge);
1966void ieee80211_update_airtime_weight(struct ieee80211_local *local,
1967 struct airtime_sched_info *air_sched,
1968 u64 now, bool force);
1969
1970/* HT */
1971void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1972 struct ieee80211_sta_ht_cap *ht_cap);
1973bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1974 struct ieee80211_supported_band *sband,
1975 const struct ieee80211_ht_cap *ht_cap_ie,
1976 struct sta_info *sta);
1977void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1978 const u8 *da, u16 tid,
1979 u16 initiator, u16 reason_code);
1980int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1981 enum ieee80211_smps_mode smps, const u8 *da,
1982 const u8 *bssid);
1983void ieee80211_request_smps_ap_work(struct work_struct *work);
1984void ieee80211_request_smps_mgd_work(struct work_struct *work);
1985bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1986 enum ieee80211_smps_mode smps_mode_new);
1987
1988void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1989 u16 initiator, u16 reason, bool stop);
1990void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1991 u16 initiator, u16 reason, bool stop);
1992void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
1993 u8 dialog_token, u16 timeout,
1994 u16 start_seq_num, u16 ba_policy, u16 tid,
1995 u16 buf_size, bool tx, bool auto_seq,
1996 const struct ieee80211_addba_ext_ie *addbaext);
1997void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1998 enum ieee80211_agg_stop_reason reason);
1999void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2000 struct sta_info *sta,
2001 struct ieee80211_mgmt *mgmt, size_t len);
2002void ieee80211_process_addba_resp(struct ieee80211_local *local,
2003 struct sta_info *sta,
2004 struct ieee80211_mgmt *mgmt,
2005 size_t len);
2006void ieee80211_process_addba_request(struct ieee80211_local *local,
2007 struct sta_info *sta,
2008 struct ieee80211_mgmt *mgmt,
2009 size_t len);
2010
2011int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2012 enum ieee80211_agg_stop_reason reason);
2013int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2014 enum ieee80211_agg_stop_reason reason);
2015void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2016 struct tid_ampdu_tx *tid_tx);
2017void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2018 struct tid_ampdu_tx *tid_tx);
2019void ieee80211_ba_session_work(struct work_struct *work);
2020void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2021void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2022
2023u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2024enum nl80211_smps_mode
2025ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2026
2027/* VHT */
2028void
2029ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2030 struct ieee80211_supported_band *sband,
2031 const struct ieee80211_vht_cap *vht_cap_ie,
2032 struct sta_info *sta);
2033enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
2034enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
2035void ieee80211_sta_set_rx_nss(struct sta_info *sta);
2036enum ieee80211_sta_rx_bandwidth
2037ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2038enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
2039void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2040 struct ieee80211_mgmt *mgmt);
2041u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2042 struct sta_info *sta, u8 opmode,
2043 enum nl80211_band band);
2044void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2045 struct sta_info *sta, u8 opmode,
2046 enum nl80211_band band);
2047void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2048 struct ieee80211_sta_vht_cap *vht_cap);
2049void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2050 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2051enum nl80211_chan_width
2052ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
2053
2054/* HE */
2055void
2056ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2057 struct ieee80211_supported_band *sband,
2058 const u8 *he_cap_ie, u8 he_cap_len,
2059 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2060 struct sta_info *sta);
2061void
2062ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2063 const struct ieee80211_he_spr *he_spr_ie_elem);
2064
2065void
2066ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2067 const struct ieee80211_he_operation *he_op_ie_elem);
2068
2069/* S1G */
2070void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2071
2072/* Spectrum management */
2073void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2074 struct ieee80211_mgmt *mgmt,
2075 size_t len);
2076/**
2077 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2078 * @sdata: the sdata of the interface which has received the frame
2079 * @elems: parsed 802.11 elements received with the frame
2080 * @current_band: indicates the current band
2081 * @vht_cap_info: VHT capabilities of the transmitter
2082 * @sta_flags: contains information about own capabilities and restrictions
2083 * to decide which channel switch announcements can be accepted. Only the
2084 * following subset of &enum ieee80211_sta_flags are evaluated:
2085 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
2086 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
2087 * %IEEE80211_STA_DISABLE_160MHZ.
2088 * @bssid: the currently connected bssid (for reporting)
2089 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2090 All of them will be filled with if success only.
2091 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2092 */
2093int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2094 struct ieee802_11_elems *elems,
2095 enum nl80211_band current_band,
2096 u32 vht_cap_info,
2097 u32 sta_flags, u8 *bssid,
2098 struct ieee80211_csa_ie *csa_ie);
2099
2100/* Suspend/resume and hw reconfiguration */
2101int ieee80211_reconfig(struct ieee80211_local *local);
2102void ieee80211_stop_device(struct ieee80211_local *local);
2103
2104int __ieee80211_suspend(struct ieee80211_hw *hw,
2105 struct cfg80211_wowlan *wowlan);
2106
2107static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2108{
2109 struct ieee80211_local *local = hw_to_local(hw);
2110
2111 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2112 !test_bit(SCAN_COMPLETED, &local->scanning),
2113 "%s: resume with hardware scan still in progress\n",
2114 wiphy_name(hw->wiphy));
2115
2116 return ieee80211_reconfig(hw_to_local(hw));
2117}
2118
2119/* utility functions/constants */
2120extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2121int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2122 int rate, int erp, int short_preamble,
2123 int shift);
2124void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2125 struct ieee80211_tx_queue_params *qparam,
2126 int ac);
2127void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
2128 bool bss_notify, bool enable_qos);
2129void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2130 struct sta_info *sta, struct sk_buff *skb);
2131
2132void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2133 struct sk_buff *skb, int tid,
2134 enum nl80211_band band);
2135
2136/* sta_out needs to be checked for ERR_PTR() before using */
2137int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2138 struct sk_buff *skb,
2139 struct sta_info **sta_out);
2140
2141static inline void
2142ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2143 struct sk_buff *skb, int tid,
2144 enum nl80211_band band)
2145{
2146 rcu_read_lock();
2147 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
2148 rcu_read_unlock();
2149}
2150
2151static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2152 struct sk_buff *skb, int tid)
2153{
2154 struct ieee80211_chanctx_conf *chanctx_conf;
2155
2156 rcu_read_lock();
2157 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2158 if (WARN_ON(!chanctx_conf)) {
2159 rcu_read_unlock();
2160 kfree_skb(skb);
2161 return;
2162 }
2163
2164 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
2165 chanctx_conf->def.chan->band);
2166 rcu_read_unlock();
2167}
2168
2169static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2170 struct sk_buff *skb)
2171{
2172 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2173 ieee80211_tx_skb_tid(sdata, skb, 7);
2174}
2175
2176u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2177 struct ieee802_11_elems *elems,
2178 u64 filter, u32 crc, u8 *transmitter_bssid,
2179 u8 *bss_bssid);
2180static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
2181 bool action,
2182 struct ieee802_11_elems *elems,
2183 u8 *transmitter_bssid,
2184 u8 *bss_bssid)
2185{
2186 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0,
2187 transmitter_bssid, bss_bssid);
2188}
2189
2190
2191extern const int ieee802_1d_to_ac[8];
2192
2193static inline int ieee80211_ac_from_tid(int tid)
2194{
2195 return ieee802_1d_to_ac[tid & 7];
2196}
2197
2198void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2199void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2200void ieee80211_dynamic_ps_timer(struct timer_list *t);
2201void ieee80211_send_nullfunc(struct ieee80211_local *local,
2202 struct ieee80211_sub_if_data *sdata,
2203 bool powersave);
2204void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2205 struct ieee80211_sub_if_data *sdata);
2206void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2207 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2208
2209void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2210 unsigned long queues,
2211 enum queue_stop_reason reason,
2212 bool refcounted);
2213void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2214 struct ieee80211_sub_if_data *sdata,
2215 enum queue_stop_reason reason);
2216void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2217 struct ieee80211_sub_if_data *sdata,
2218 enum queue_stop_reason reason);
2219void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2220 unsigned long queues,
2221 enum queue_stop_reason reason,
2222 bool refcounted);
2223void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2224 enum queue_stop_reason reason,
2225 bool refcounted);
2226void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2227 enum queue_stop_reason reason,
2228 bool refcounted);
2229void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
2230void ieee80211_add_pending_skb(struct ieee80211_local *local,
2231 struct sk_buff *skb);
2232void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2233 struct sk_buff_head *skbs);
2234void ieee80211_flush_queues(struct ieee80211_local *local,
2235 struct ieee80211_sub_if_data *sdata, bool drop);
2236void __ieee80211_flush_queues(struct ieee80211_local *local,
2237 struct ieee80211_sub_if_data *sdata,
2238 unsigned int queues, bool drop);
2239
2240static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2241{
2242 /*
2243 * It's unsafe to try to do any work during reconfigure flow.
2244 * When the flow ends the work will be requeued.
2245 */
2246 if (local->in_reconfig)
2247 return false;
2248
2249 /*
2250 * If quiescing is set, we are racing with __ieee80211_suspend.
2251 * __ieee80211_suspend flushes the workers after setting quiescing,
2252 * and we check quiescing / suspended before enqueing new workers.
2253 * We should abort the worker to avoid the races below.
2254 */
2255 if (local->quiescing)
2256 return false;
2257
2258 /*
2259 * We might already be suspended if the following scenario occurs:
2260 * __ieee80211_suspend Control path
2261 *
2262 * if (local->quiescing)
2263 * return;
2264 * local->quiescing = true;
2265 * flush_workqueue();
2266 * queue_work(...);
2267 * local->suspended = true;
2268 * local->quiescing = false;
2269 * worker starts running...
2270 */
2271 if (local->suspended)
2272 return false;
2273
2274 return true;
2275}
2276
2277int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2278void ieee80211_txq_set_params(struct ieee80211_local *local);
2279void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2280void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2281 struct sta_info *sta,
2282 struct txq_info *txq, int tid);
2283void ieee80211_txq_purge(struct ieee80211_local *local,
2284 struct txq_info *txqi);
2285void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2286 struct ieee80211_sub_if_data *sdata);
2287void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2288 struct txq_info *txqi);
2289void ieee80211_wake_txqs(struct tasklet_struct *t);
2290void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2291 u16 transaction, u16 auth_alg, u16 status,
2292 const u8 *extra, size_t extra_len, const u8 *bssid,
2293 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2294 u32 tx_flags);
2295void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2296 const u8 *da, const u8 *bssid,
2297 u16 stype, u16 reason,
2298 bool send_frame, u8 *frame_buf);
2299
2300enum {
2301 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2302 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2303 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2304};
2305
2306int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2307 size_t buffer_len,
2308 struct ieee80211_scan_ies *ie_desc,
2309 const u8 *ie, size_t ie_len,
2310 u8 bands_used, u32 *rate_masks,
2311 struct cfg80211_chan_def *chandef,
2312 u32 flags);
2313struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2314 const u8 *src, const u8 *dst,
2315 u32 ratemask,
2316 struct ieee80211_channel *chan,
2317 const u8 *ssid, size_t ssid_len,
2318 const u8 *ie, size_t ie_len,
2319 u32 flags);
2320u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2321 struct ieee802_11_elems *elems,
2322 enum nl80211_band band, u32 *basic_rates);
2323int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2324 enum ieee80211_smps_mode smps_mode);
2325void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2326void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2327
2328size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2329u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2330 u16 cap);
2331u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2332 const struct cfg80211_chan_def *chandef,
2333 u16 prot_mode, bool rifs_mode);
2334void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2335 const struct cfg80211_chan_def *chandef);
2336u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2337 u32 cap);
2338u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2339 const struct cfg80211_chan_def *chandef);
2340u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2341u8 *ieee80211_ie_build_he_cap(u8 *pos,
2342 const struct ieee80211_sta_he_cap *he_cap,
2343 u8 *end);
2344void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2345 struct sk_buff *skb);
2346u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2347int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2348 const struct ieee80211_supported_band *sband,
2349 const u8 *srates, int srates_len, u32 *rates);
2350int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2351 struct sk_buff *skb, bool need_basic,
2352 enum nl80211_band band);
2353int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2354 struct sk_buff *skb, bool need_basic,
2355 enum nl80211_band band);
2356u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2357void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2358 struct ieee80211_sta_s1g_cap *caps,
2359 struct sk_buff *skb);
2360void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2361 struct sk_buff *skb);
2362
2363/* channel management */
2364bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2365 struct cfg80211_chan_def *chandef);
2366bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2367 const struct ieee80211_vht_operation *oper,
2368 const struct ieee80211_ht_operation *htop,
2369 struct cfg80211_chan_def *chandef);
2370bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2371 const struct ieee80211_he_operation *he_oper,
2372 struct cfg80211_chan_def *chandef);
2373bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2374 struct cfg80211_chan_def *chandef);
2375u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2376
2377int __must_check
2378ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2379 const struct cfg80211_chan_def *chandef,
2380 enum ieee80211_chanctx_mode mode);
2381int __must_check
2382ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2383 const struct cfg80211_chan_def *chandef,
2384 enum ieee80211_chanctx_mode mode,
2385 bool radar_required);
2386int __must_check
2387ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2388int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2389
2390int __must_check
2391ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2392 const struct cfg80211_chan_def *chandef,
2393 u32 *changed);
2394void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2395void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2396void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2397 bool clear);
2398int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2399 struct ieee80211_chanctx *ctx);
2400
2401void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2402 struct ieee80211_chanctx *chanctx);
2403void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2404 struct ieee80211_chanctx *ctx);
2405bool ieee80211_is_radar_required(struct ieee80211_local *local);
2406
2407void ieee80211_dfs_cac_timer(unsigned long data);
2408void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2409void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2410void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2411int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2412 struct cfg80211_csa_settings *csa_settings);
2413
2414bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2415bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2416const struct ieee80211_cipher_scheme *
2417ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2418 enum nl80211_iftype iftype);
2419int ieee80211_cs_headroom(struct ieee80211_local *local,
2420 struct cfg80211_crypto_settings *crypto,
2421 enum nl80211_iftype iftype);
2422void ieee80211_recalc_dtim(struct ieee80211_local *local,
2423 struct ieee80211_sub_if_data *sdata);
2424int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2425 const struct cfg80211_chan_def *chandef,
2426 enum ieee80211_chanctx_mode chanmode,
2427 u8 radar_detect);
2428int ieee80211_max_num_channels(struct ieee80211_local *local);
2429void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2430 struct ieee80211_chanctx *ctx);
2431
2432/* TDLS */
2433int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2434 const u8 *peer, u8 action_code, u8 dialog_token,
2435 u16 status_code, u32 peer_capability,
2436 bool initiator, const u8 *extra_ies,
2437 size_t extra_ies_len);
2438int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2439 const u8 *peer, enum nl80211_tdls_operation oper);
2440void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2441int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2442 const u8 *addr, u8 oper_class,
2443 struct cfg80211_chan_def *chandef);
2444void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2445 struct net_device *dev,
2446 const u8 *addr);
2447void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2448void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2449 const u8 *peer, u16 reason);
2450void
2451ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2452 struct sk_buff *skb);
2453
2454
2455const char *ieee80211_get_reason_code_string(u16 reason_code);
2456u16 ieee80211_encode_usf(int val);
2457u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2458 enum nl80211_iftype type);
2459
2460extern const struct ethtool_ops ieee80211_ethtool_ops;
2461
2462u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2463 struct ieee80211_vif *vif,
2464 struct ieee80211_sta *pubsta,
2465 int len, bool ampdu);
2466#ifdef CONFIG_MAC80211_NOINLINE
2467#define debug_noinline noinline
2468#else
2469#define debug_noinline
2470#endif
2471
2472void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2473void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2474
2475#endif /* IEEE80211_I_H */
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2002-2005, Instant802 Networks, Inc.
4 * Copyright 2005, Devicescape Software, Inc.
5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2015 Intel Mobile Communications GmbH
8 * Copyright (C) 2018-2024 Intel Corporation
9 */
10
11#ifndef IEEE80211_I_H
12#define IEEE80211_I_H
13
14#include <linux/kernel.h>
15#include <linux/device.h>
16#include <linux/if_ether.h>
17#include <linux/interrupt.h>
18#include <linux/list.h>
19#include <linux/netdevice.h>
20#include <linux/skbuff.h>
21#include <linux/workqueue.h>
22#include <linux/types.h>
23#include <linux/spinlock.h>
24#include <linux/etherdevice.h>
25#include <linux/leds.h>
26#include <linux/idr.h>
27#include <linux/rhashtable.h>
28#include <linux/rbtree.h>
29#include <kunit/visibility.h>
30#include <net/ieee80211_radiotap.h>
31#include <net/cfg80211.h>
32#include <net/mac80211.h>
33#include <net/fq.h>
34#include "key.h"
35#include "sta_info.h"
36#include "debug.h"
37#include "drop.h"
38
39extern const struct cfg80211_ops mac80211_config_ops;
40
41struct ieee80211_local;
42struct ieee80211_mesh_fast_tx;
43
44/* Maximum number of broadcast/multicast frames to buffer when some of the
45 * associated stations are using power saving. */
46#define AP_MAX_BC_BUFFER 128
47
48/* Maximum number of frames buffered to all STAs, including multicast frames.
49 * Note: increasing this limit increases the potential memory requirement. Each
50 * frame can be up to about 2 kB long. */
51#define TOTAL_MAX_TX_BUFFER 512
52
53/* Required encryption head and tailroom */
54#define IEEE80211_ENCRYPT_HEADROOM 8
55#define IEEE80211_ENCRYPT_TAILROOM 18
56
57/* power level hasn't been configured (or set to automatic) */
58#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
59
60/*
61 * Some APs experience problems when working with U-APSD. Decreasing the
62 * probability of that happening by using legacy mode for all ACs but VO isn't
63 * enough.
64 *
65 * Cisco 4410N originally forced us to enable VO by default only because it
66 * treated non-VO ACs as legacy.
67 *
68 * However some APs (notably Netgear R7000) silently reclassify packets to
69 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
70 * clients would never see some frames (e.g. ARP responses) or would fetch them
71 * accidentally after a long time.
72 *
73 * It makes little sense to enable u-APSD queues by default because it needs
74 * userspace applications to be aware of it to actually take advantage of the
75 * possible additional powersavings. Implicitly depending on driver autotrigger
76 * frame support doesn't make much sense.
77 */
78#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
79
80#define IEEE80211_DEFAULT_MAX_SP_LEN \
81 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
82
83extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
84
85#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
86
87#define IEEE80211_MAX_NAN_INSTANCE_ID 255
88
89enum ieee80211_status_data {
90 IEEE80211_STATUS_TYPE_MASK = 0x00f,
91 IEEE80211_STATUS_TYPE_INVALID = 0,
92 IEEE80211_STATUS_TYPE_SMPS = 1,
93 IEEE80211_STATUS_TYPE_NEG_TTLM = 2,
94 IEEE80211_STATUS_SUBDATA_MASK = 0x1ff0,
95};
96
97static inline bool
98ieee80211_sta_keep_active(struct sta_info *sta, u8 ac)
99{
100 /* Keep a station's queues on the active list for deficit accounting
101 * purposes if it was active or queued during the last 100ms.
102 */
103 return time_before_eq(jiffies, sta->airtime[ac].last_active + HZ / 10);
104}
105
106struct ieee80211_bss {
107 u32 device_ts_beacon, device_ts_presp;
108
109 bool wmm_used;
110 bool uapsd_supported;
111
112#define IEEE80211_MAX_SUPP_RATES 32
113 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
114 size_t supp_rates_len;
115 struct ieee80211_rate *beacon_rate;
116
117 u32 vht_cap_info;
118
119 /*
120 * During association, we save an ERP value from a probe response so
121 * that we can feed ERP info to the driver when handling the
122 * association completes. these fields probably won't be up-to-date
123 * otherwise, you probably don't want to use them.
124 */
125 bool has_erp_value;
126 u8 erp_value;
127
128 /* Keep track of the corruption of the last beacon/probe response. */
129 u8 corrupt_data;
130
131 /* Keep track of what bits of information we have valid info for. */
132 u8 valid_data;
133};
134
135/**
136 * enum ieee80211_bss_corrupt_data_flags - BSS data corruption flags
137 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
138 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
139 *
140 * These are bss flags that are attached to a bss in the
141 * @corrupt_data field of &struct ieee80211_bss.
142 */
143enum ieee80211_bss_corrupt_data_flags {
144 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
145 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
146};
147
148/**
149 * enum ieee80211_bss_valid_data_flags - BSS valid data flags
150 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
151 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
152 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
153 *
154 * These are bss flags that are attached to a bss in the
155 * @valid_data field of &struct ieee80211_bss. They show which parts
156 * of the data structure were received as a result of an un-corrupted
157 * beacon/probe response.
158 */
159enum ieee80211_bss_valid_data_flags {
160 IEEE80211_BSS_VALID_WMM = BIT(1),
161 IEEE80211_BSS_VALID_RATES = BIT(2),
162 IEEE80211_BSS_VALID_ERP = BIT(3)
163};
164
165typedef unsigned __bitwise ieee80211_tx_result;
166#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
167#define TX_DROP ((__force ieee80211_tx_result) 1u)
168#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
169
170#define IEEE80211_TX_UNICAST BIT(1)
171#define IEEE80211_TX_PS_BUFFERED BIT(2)
172
173struct ieee80211_tx_data {
174 struct sk_buff *skb;
175 struct sk_buff_head skbs;
176 struct ieee80211_local *local;
177 struct ieee80211_sub_if_data *sdata;
178 struct sta_info *sta;
179 struct ieee80211_key *key;
180 struct ieee80211_tx_rate rate;
181
182 unsigned int flags;
183};
184
185/**
186 * enum ieee80211_packet_rx_flags - packet RX flags
187 * @IEEE80211_RX_AMSDU: a-MSDU packet
188 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
189 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
190 *
191 * These are per-frame flags that are attached to a frame in the
192 * @rx_flags field of &struct ieee80211_rx_status.
193 */
194enum ieee80211_packet_rx_flags {
195 IEEE80211_RX_AMSDU = BIT(3),
196 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
197 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
198};
199
200/**
201 * enum ieee80211_rx_flags - RX data flags
202 *
203 * @IEEE80211_RX_CMNTR: received on cooked monitor already
204 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
205 * to cfg80211_report_obss_beacon().
206 *
207 * These flags are used across handling multiple interfaces
208 * for a single frame.
209 */
210enum ieee80211_rx_flags {
211 IEEE80211_RX_CMNTR = BIT(0),
212 IEEE80211_RX_BEACON_REPORTED = BIT(1),
213};
214
215struct ieee80211_rx_data {
216 struct list_head *list;
217 struct sk_buff *skb;
218 struct ieee80211_local *local;
219 struct ieee80211_sub_if_data *sdata;
220 struct ieee80211_link_data *link;
221 struct sta_info *sta;
222 struct link_sta_info *link_sta;
223 struct ieee80211_key *key;
224
225 unsigned int flags;
226
227 /*
228 * Index into sequence numbers array, 0..16
229 * since the last (16) is used for non-QoS,
230 * will be 16 on non-QoS frames.
231 */
232 int seqno_idx;
233
234 /*
235 * Index into the security IV/PN arrays, 0..16
236 * since the last (16) is used for CCMP-encrypted
237 * management frames, will be set to 16 on mgmt
238 * frames and 0 on non-QoS frames.
239 */
240 int security_idx;
241
242 int link_id;
243
244 union {
245 struct {
246 u32 iv32;
247 u16 iv16;
248 } tkip;
249 struct {
250 u8 pn[IEEE80211_CCMP_PN_LEN];
251 } ccm_gcm;
252 };
253};
254
255struct ieee80211_csa_settings {
256 const u16 *counter_offsets_beacon;
257 const u16 *counter_offsets_presp;
258
259 int n_counter_offsets_beacon;
260 int n_counter_offsets_presp;
261
262 u8 count;
263};
264
265struct ieee80211_color_change_settings {
266 u16 counter_offset_beacon;
267 u16 counter_offset_presp;
268 u8 count;
269};
270
271struct beacon_data {
272 u8 *head, *tail;
273 int head_len, tail_len;
274 struct ieee80211_meshconf_ie *meshconf;
275 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
276 u8 cntdwn_current_counter;
277 struct cfg80211_mbssid_elems *mbssid_ies;
278 struct cfg80211_rnr_elems *rnr_ies;
279 struct rcu_head rcu_head;
280};
281
282struct probe_resp {
283 struct rcu_head rcu_head;
284 int len;
285 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
286 u8 data[];
287};
288
289struct fils_discovery_data {
290 struct rcu_head rcu_head;
291 int len;
292 u8 data[];
293};
294
295struct unsol_bcast_probe_resp_data {
296 struct rcu_head rcu_head;
297 int len;
298 u8 data[];
299};
300
301struct ps_data {
302 /* yes, this looks ugly, but guarantees that we can later use
303 * bitmap_empty :)
304 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
305 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
306 __aligned(__alignof__(unsigned long));
307 struct sk_buff_head bc_buf;
308 atomic_t num_sta_ps; /* number of stations in PS mode */
309 int dtim_count;
310 bool dtim_bc_mc;
311};
312
313struct ieee80211_if_ap {
314 struct list_head vlans; /* write-protected with RTNL and local->mtx */
315
316 struct ps_data ps;
317 atomic_t num_mcast_sta; /* number of stations receiving multicast */
318
319 bool multicast_to_unicast;
320 bool active;
321};
322
323struct ieee80211_if_vlan {
324 struct list_head list; /* write-protected with RTNL and local->mtx */
325
326 /* used for all tx if the VLAN is configured to 4-addr mode */
327 struct sta_info __rcu *sta;
328 atomic_t num_mcast_sta; /* number of stations receiving multicast */
329};
330
331struct mesh_stats {
332 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
333 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
334 __u32 fwded_frames; /* Mesh total forwarded frames */
335 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
336 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
337};
338
339#define PREQ_Q_F_START 0x1
340#define PREQ_Q_F_REFRESH 0x2
341struct mesh_preq_queue {
342 struct list_head list;
343 u8 dst[ETH_ALEN];
344 u8 flags;
345};
346
347struct ieee80211_roc_work {
348 struct list_head list;
349
350 struct ieee80211_sub_if_data *sdata;
351
352 struct ieee80211_channel *chan;
353
354 bool started, abort, hw_begun, notified;
355 bool on_channel;
356
357 unsigned long start_time;
358
359 u32 duration, req_duration;
360 struct sk_buff *frame;
361 u64 cookie, mgmt_tx_cookie;
362 enum ieee80211_roc_type type;
363};
364
365/* flags used in struct ieee80211_if_managed.flags */
366enum ieee80211_sta_flags {
367 IEEE80211_STA_CONNECTION_POLL = BIT(1),
368 IEEE80211_STA_CONTROL_PORT = BIT(2),
369 IEEE80211_STA_MFP_ENABLED = BIT(6),
370 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
371 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
372 IEEE80211_STA_ENABLE_RRM = BIT(15),
373};
374
375enum ieee80211_conn_mode {
376 IEEE80211_CONN_MODE_S1G,
377 IEEE80211_CONN_MODE_LEGACY,
378 IEEE80211_CONN_MODE_HT,
379 IEEE80211_CONN_MODE_VHT,
380 IEEE80211_CONN_MODE_HE,
381 IEEE80211_CONN_MODE_EHT,
382};
383
384#define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_EHT
385
386enum ieee80211_conn_bw_limit {
387 IEEE80211_CONN_BW_LIMIT_20,
388 IEEE80211_CONN_BW_LIMIT_40,
389 IEEE80211_CONN_BW_LIMIT_80,
390 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */
391 IEEE80211_CONN_BW_LIMIT_320,
392};
393
394struct ieee80211_conn_settings {
395 enum ieee80211_conn_mode mode;
396 enum ieee80211_conn_bw_limit bw_limit;
397};
398
399extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited;
400
401struct ieee80211_mgd_auth_data {
402 struct cfg80211_bss *bss;
403 unsigned long timeout;
404 int tries;
405 u16 algorithm, expected_transaction;
406
407 u8 key[WLAN_KEY_LEN_WEP104];
408 u8 key_len, key_idx;
409 bool done, waiting;
410 bool peer_confirmed;
411 bool timeout_started;
412 int link_id;
413
414 u8 ap_addr[ETH_ALEN] __aligned(2);
415
416 u16 sae_trans, sae_status;
417 size_t data_len;
418 u8 data[];
419};
420
421struct ieee80211_mgd_assoc_data {
422 struct {
423 struct cfg80211_bss *bss;
424
425 u8 addr[ETH_ALEN] __aligned(2);
426
427 u8 ap_ht_param;
428
429 struct ieee80211_vht_cap ap_vht_cap;
430
431 size_t elems_len;
432 u8 *elems; /* pointing to inside ie[] below */
433
434 struct ieee80211_conn_settings conn;
435
436 u16 status;
437
438 bool disabled;
439 } link[IEEE80211_MLD_MAX_NUM_LINKS];
440
441 u8 ap_addr[ETH_ALEN] __aligned(2);
442
443 /* this is for a workaround, so we use it only for non-MLO */
444 const u8 *supp_rates;
445 u8 supp_rates_len;
446
447 unsigned long timeout;
448 int tries;
449
450 u8 prev_ap_addr[ETH_ALEN];
451 u8 ssid[IEEE80211_MAX_SSID_LEN];
452 u8 ssid_len;
453 bool wmm, uapsd;
454 bool need_beacon;
455 bool synced;
456 bool timeout_started;
457 bool comeback; /* whether the AP has requested association comeback */
458 bool s1g;
459 bool spp_amsdu;
460
461 unsigned int assoc_link_id;
462
463 u8 fils_nonces[2 * FILS_NONCE_LEN];
464 u8 fils_kek[FILS_MAX_KEK_LEN];
465 size_t fils_kek_len;
466
467 size_t ie_len;
468 u8 *ie_pos; /* used to fill ie[] with link[].elems */
469 u8 ie[];
470};
471
472struct ieee80211_sta_tx_tspec {
473 /* timestamp of the first packet in the time slice */
474 unsigned long time_slice_start;
475
476 u32 admitted_time; /* in usecs, unlike over the air */
477 u8 tsid;
478 s8 up; /* signed to be able to invalidate with -1 during teardown */
479
480 /* consumed TX time in microseconds in the time slice */
481 u32 consumed_tx_time;
482 enum {
483 TX_TSPEC_ACTION_NONE = 0,
484 TX_TSPEC_ACTION_DOWNGRADE,
485 TX_TSPEC_ACTION_STOP_DOWNGRADE,
486 } action;
487 bool downgraded;
488};
489
490/* Advertised TID-to-link mapping info */
491struct ieee80211_adv_ttlm_info {
492 /* time in TUs at which the new mapping is established, or 0 if there is
493 * no planned advertised TID-to-link mapping
494 */
495 u16 switch_time;
496 u32 duration; /* duration of the planned T2L map in TUs */
497 u16 map; /* map of usable links for all TIDs */
498 bool active; /* whether the advertised mapping is active or not */
499};
500
501DECLARE_EWMA(beacon_signal, 4, 4)
502
503struct ieee80211_if_managed {
504 struct timer_list timer;
505 struct timer_list conn_mon_timer;
506 struct timer_list bcn_mon_timer;
507 struct wiphy_work monitor_work;
508 struct wiphy_work beacon_connection_loss_work;
509 struct wiphy_work csa_connection_drop_work;
510
511 unsigned long beacon_timeout;
512 unsigned long probe_timeout;
513 int probe_send_count;
514 bool nullfunc_failed;
515 u8 connection_loss:1,
516 driver_disconnect:1,
517 reconnect:1,
518 associated:1;
519
520 struct ieee80211_mgd_auth_data *auth_data;
521 struct ieee80211_mgd_assoc_data *assoc_data;
522
523 bool powersave; /* powersave requested for this iface */
524 bool broken_ap; /* AP is broken -- turn off powersave */
525
526 unsigned int flags;
527
528 u16 mcast_seq_last;
529
530 bool status_acked;
531 bool status_received;
532 __le16 status_fc;
533
534 enum {
535 IEEE80211_MFP_DISABLED,
536 IEEE80211_MFP_OPTIONAL,
537 IEEE80211_MFP_REQUIRED
538 } mfp; /* management frame protection */
539
540 /*
541 * Bitmask of enabled u-apsd queues,
542 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
543 * to take effect.
544 */
545 unsigned int uapsd_queues;
546
547 /*
548 * Maximum number of buffered frames AP can deliver during a
549 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
550 * Needs a new association to take effect.
551 */
552 unsigned int uapsd_max_sp_len;
553
554 u8 use_4addr;
555
556 /*
557 * State variables for keeping track of RSSI of the AP currently
558 * connected to and informing driver when RSSI has gone
559 * below/above a certain threshold.
560 */
561 int rssi_min_thold, rssi_max_thold;
562
563 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
564 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
565 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
566 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
567 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
568 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
569
570 /* TDLS support */
571 u8 tdls_peer[ETH_ALEN] __aligned(2);
572 struct wiphy_delayed_work tdls_peer_del_work;
573 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
574 struct sk_buff *teardown_skb; /* A copy to send through the AP */
575 spinlock_t teardown_lock; /* To lock changing teardown_skb */
576 bool tdls_wider_bw_prohibited;
577
578 /* WMM-AC TSPEC support */
579 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
580 /* Use a separate work struct so that we can do something here
581 * while the sdata->work is flushing the queues, for example.
582 * otherwise, in scenarios where we hardly get any traffic out
583 * on the BE queue, but there's a lot of VO traffic, we might
584 * get stuck in a downgraded situation and flush takes forever.
585 */
586 struct wiphy_delayed_work tx_tspec_wk;
587
588 /* Information elements from the last transmitted (Re)Association
589 * Request frame.
590 */
591 u8 *assoc_req_ies;
592 size_t assoc_req_ies_len;
593
594 struct wiphy_delayed_work ml_reconf_work;
595 u16 removed_links;
596
597 /* TID-to-link mapping support */
598 struct wiphy_delayed_work ttlm_work;
599 struct ieee80211_adv_ttlm_info ttlm_info;
600 struct wiphy_work teardown_ttlm_work;
601
602 /* dialog token enumerator for neg TTLM request */
603 u8 dialog_token_alloc;
604 struct wiphy_delayed_work neg_ttlm_timeout_work;
605};
606
607struct ieee80211_if_ibss {
608 struct timer_list timer;
609 struct wiphy_work csa_connection_drop_work;
610
611 unsigned long last_scan_completed;
612
613 u32 basic_rates;
614
615 bool fixed_bssid;
616 bool fixed_channel;
617 bool privacy;
618
619 bool control_port;
620 bool userspace_handles_dfs;
621
622 u8 bssid[ETH_ALEN] __aligned(2);
623 u8 ssid[IEEE80211_MAX_SSID_LEN];
624 u8 ssid_len, ie_len;
625 u8 *ie;
626 struct cfg80211_chan_def chandef;
627
628 unsigned long ibss_join_req;
629 /* probe response/beacon for IBSS */
630 struct beacon_data __rcu *presp;
631
632 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
633 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
634
635 spinlock_t incomplete_lock;
636 struct list_head incomplete_stations;
637
638 enum {
639 IEEE80211_IBSS_MLME_SEARCH,
640 IEEE80211_IBSS_MLME_JOINED,
641 } state;
642};
643
644/**
645 * struct ieee80211_if_ocb - OCB mode state
646 *
647 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
648 * @wrkq_flags: OCB deferred task action
649 * @incomplete_lock: delayed STA insertion lock
650 * @incomplete_stations: list of STAs waiting for delayed insertion
651 * @joined: indication if the interface is connected to an OCB network
652 */
653struct ieee80211_if_ocb {
654 struct timer_list housekeeping_timer;
655 unsigned long wrkq_flags;
656
657 spinlock_t incomplete_lock;
658 struct list_head incomplete_stations;
659
660 bool joined;
661};
662
663/**
664 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
665 *
666 * these declarations define the interface, which enables
667 * vendor-specific mesh synchronization
668 *
669 * @rx_bcn_presp: beacon/probe response was received
670 * @adjust_tsf: TSF adjustment method
671 */
672struct ieee80211_mesh_sync_ops {
673 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
674 struct ieee80211_mgmt *mgmt, unsigned int len,
675 const struct ieee80211_meshconf_ie *mesh_cfg,
676 struct ieee80211_rx_status *rx_status);
677
678 /* should be called with beacon_data under RCU read lock */
679 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
680 struct beacon_data *beacon);
681 /* add other framework functions here */
682};
683
684struct mesh_csa_settings {
685 struct rcu_head rcu_head;
686 struct cfg80211_csa_settings settings;
687};
688
689/**
690 * struct mesh_table - mesh hash table
691 *
692 * @known_gates: list of known mesh gates and their mpaths by the station. The
693 * gate's mpath may or may not be resolved and active.
694 * @gates_lock: protects updates to known_gates
695 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
696 * @walk_head: linked list containing all mesh_path objects
697 * @walk_lock: lock protecting walk_head
698 * @entries: number of entries in the table
699 */
700struct mesh_table {
701 struct hlist_head known_gates;
702 spinlock_t gates_lock;
703 struct rhashtable rhead;
704 struct hlist_head walk_head;
705 spinlock_t walk_lock;
706 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
707};
708
709/**
710 * struct mesh_tx_cache - mesh fast xmit header cache
711 *
712 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key
713 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects
714 * @walk_lock: lock protecting walk_head and rht
715 */
716struct mesh_tx_cache {
717 struct rhashtable rht;
718 struct hlist_head walk_head;
719 spinlock_t walk_lock;
720};
721
722struct ieee80211_if_mesh {
723 struct timer_list housekeeping_timer;
724 struct timer_list mesh_path_timer;
725 struct timer_list mesh_path_root_timer;
726
727 unsigned long wrkq_flags;
728 unsigned long mbss_changed[64 / BITS_PER_LONG];
729
730 bool userspace_handles_dfs;
731
732 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
733 size_t mesh_id_len;
734 /* Active Path Selection Protocol Identifier */
735 u8 mesh_pp_id;
736 /* Active Path Selection Metric Identifier */
737 u8 mesh_pm_id;
738 /* Congestion Control Mode Identifier */
739 u8 mesh_cc_id;
740 /* Synchronization Protocol Identifier */
741 u8 mesh_sp_id;
742 /* Authentication Protocol Identifier */
743 u8 mesh_auth_id;
744 /* Local mesh Sequence Number */
745 u32 sn;
746 /* Last used PREQ ID */
747 u32 preq_id;
748 atomic_t mpaths;
749 /* Timestamp of last SN update */
750 unsigned long last_sn_update;
751 /* Time when it's ok to send next PERR */
752 unsigned long next_perr;
753 /* Timestamp of last PREQ sent */
754 unsigned long last_preq;
755 struct mesh_rmc *rmc;
756 spinlock_t mesh_preq_queue_lock;
757 struct mesh_preq_queue preq_queue;
758 int preq_queue_len;
759 struct mesh_stats mshstats;
760 struct mesh_config mshcfg;
761 atomic_t estab_plinks;
762 atomic_t mesh_seqnum;
763 bool accepting_plinks;
764 int num_gates;
765 struct beacon_data __rcu *beacon;
766 const u8 *ie;
767 u8 ie_len;
768 enum {
769 IEEE80211_MESH_SEC_NONE = 0x0,
770 IEEE80211_MESH_SEC_AUTHED = 0x1,
771 IEEE80211_MESH_SEC_SECURED = 0x2,
772 } security;
773 bool user_mpm;
774 /* Extensible Synchronization Framework */
775 const struct ieee80211_mesh_sync_ops *sync_ops;
776 s64 sync_offset_clockdrift_max;
777 spinlock_t sync_offset_lock;
778 /* mesh power save */
779 enum nl80211_mesh_power_mode nonpeer_pm;
780 int ps_peers_light_sleep;
781 int ps_peers_deep_sleep;
782 struct ps_data ps;
783 /* Channel Switching Support */
784 struct mesh_csa_settings __rcu *csa;
785 enum {
786 IEEE80211_MESH_CSA_ROLE_NONE,
787 IEEE80211_MESH_CSA_ROLE_INIT,
788 IEEE80211_MESH_CSA_ROLE_REPEATER,
789 } csa_role;
790 u8 chsw_ttl;
791 u16 pre_value;
792
793 /* offset from skb->data while building IE */
794 int meshconf_offset;
795
796 struct mesh_table mesh_paths;
797 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
798 int mesh_paths_generation;
799 int mpp_paths_generation;
800 struct mesh_tx_cache tx_cache;
801};
802
803#ifdef CONFIG_MAC80211_MESH
804#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
805 do { (msh)->mshstats.name++; } while (0)
806#else
807#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
808 do { } while (0)
809#endif
810
811/**
812 * enum ieee80211_sub_if_data_flags - virtual interface flags
813 *
814 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
815 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
816 * associated stations and deliver multicast frames both
817 * back to wireless media and to the local net stack.
818 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
819 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
820 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
821 * recovery
822 */
823enum ieee80211_sub_if_data_flags {
824 IEEE80211_SDATA_ALLMULTI = BIT(0),
825 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
826 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
827 IEEE80211_SDATA_IN_DRIVER = BIT(5),
828 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
829};
830
831/**
832 * enum ieee80211_sdata_state_bits - virtual interface state bits
833 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
834 * mirrors netif_running() but is separate for interface type
835 * change handling while the interface is up
836 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
837 * mode, so queues are stopped
838 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
839 * to offchannel, reset when offchannel returns
840 */
841enum ieee80211_sdata_state_bits {
842 SDATA_STATE_RUNNING,
843 SDATA_STATE_OFFCHANNEL,
844 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
845};
846
847/**
848 * enum ieee80211_chanctx_mode - channel context configuration mode
849 *
850 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
851 * multiple interfaces
852 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
853 * only by a single interface. This can be used for example for
854 * non-fixed channel IBSS.
855 */
856enum ieee80211_chanctx_mode {
857 IEEE80211_CHANCTX_SHARED,
858 IEEE80211_CHANCTX_EXCLUSIVE
859};
860
861/**
862 * enum ieee80211_chanctx_replace_state - channel context replacement state
863 *
864 * This is used for channel context in-place reservations that require channel
865 * context switch/swap.
866 *
867 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
868 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
869 * by a (not yet registered) channel context pointed by %replace_ctx.
870 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
871 * replaces an existing channel context pointed to by %replace_ctx.
872 */
873enum ieee80211_chanctx_replace_state {
874 IEEE80211_CHANCTX_REPLACE_NONE,
875 IEEE80211_CHANCTX_WILL_BE_REPLACED,
876 IEEE80211_CHANCTX_REPLACES_OTHER,
877};
878
879struct ieee80211_chanctx {
880 struct list_head list;
881 struct rcu_head rcu_head;
882
883 struct list_head assigned_links;
884 struct list_head reserved_links;
885
886 enum ieee80211_chanctx_replace_state replace_state;
887 struct ieee80211_chanctx *replace_ctx;
888
889 enum ieee80211_chanctx_mode mode;
890 bool driver_present;
891
892 /* temporary data for search algorithm etc. */
893 struct ieee80211_chan_req req;
894
895 bool radar_detected;
896
897 /* MUST be last - ends in a flexible-array member. */
898 struct ieee80211_chanctx_conf conf;
899};
900
901struct mac80211_qos_map {
902 struct cfg80211_qos_map qos_map;
903 struct rcu_head rcu_head;
904};
905
906enum txq_info_flags {
907 IEEE80211_TXQ_STOP,
908 IEEE80211_TXQ_AMPDU,
909 IEEE80211_TXQ_NO_AMSDU,
910 IEEE80211_TXQ_DIRTY,
911};
912
913/**
914 * struct txq_info - per tid queue
915 *
916 * @tin: contains packets split into multiple flows
917 * @def_cvars: codel vars for the @tin's default_flow
918 * @cstats: code statistics for this queue
919 * @frags: used to keep fragments created after dequeue
920 * @schedule_order: used with ieee80211_local->active_txqs
921 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
922 * @flags: TXQ flags from &enum txq_info_flags
923 * @txq: the driver visible part
924 */
925struct txq_info {
926 struct fq_tin tin;
927 struct codel_vars def_cvars;
928 struct codel_stats cstats;
929
930 u16 schedule_round;
931 struct list_head schedule_order;
932
933 struct sk_buff_head frags;
934
935 unsigned long flags;
936
937 /* keep last! */
938 struct ieee80211_txq txq;
939};
940
941struct ieee80211_if_mntr {
942 u32 flags;
943 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
944
945 struct list_head list;
946};
947
948/**
949 * struct ieee80211_if_nan - NAN state
950 *
951 * @conf: current NAN configuration
952 * @func_lock: lock for @func_inst_ids
953 * @function_inst_ids: a bitmap of available instance_id's
954 */
955struct ieee80211_if_nan {
956 struct cfg80211_nan_conf conf;
957
958 /* protects function_inst_ids */
959 spinlock_t func_lock;
960 struct idr function_inst_ids;
961};
962
963struct ieee80211_link_data_managed {
964 u8 bssid[ETH_ALEN] __aligned(2);
965
966 u8 dtim_period;
967 enum ieee80211_smps_mode req_smps, /* requested smps mode */
968 driver_smps_mode; /* smps mode request */
969
970 struct ieee80211_conn_settings conn;
971
972 s16 p2p_noa_index;
973
974 bool tdls_chan_switch_prohibited;
975
976 bool have_beacon;
977 bool tracking_signal_avg;
978 bool disable_wmm_tracking;
979 bool operating_11g_mode;
980
981 struct {
982 struct wiphy_delayed_work switch_work;
983 struct cfg80211_chan_def ap_chandef;
984 struct ieee80211_parsed_tpe tpe;
985 unsigned long time;
986 bool waiting_bcn;
987 bool ignored_same_chan;
988 bool blocked_tx;
989 } csa;
990
991 struct wiphy_work request_smps_work;
992 /* used to reconfigure hardware SM PS */
993 struct wiphy_work recalc_smps;
994
995 bool beacon_crc_valid;
996 u32 beacon_crc;
997 struct ewma_beacon_signal ave_beacon_signal;
998 int last_ave_beacon_signal;
999
1000 /*
1001 * Number of Beacon frames used in ave_beacon_signal. This can be used
1002 * to avoid generating less reliable cqm events that would be based
1003 * only on couple of received frames.
1004 */
1005 unsigned int count_beacon_signal;
1006
1007 /* Number of times beacon loss was invoked. */
1008 unsigned int beacon_loss_count;
1009
1010 /*
1011 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
1012 * that triggered a cqm event. 0 indicates that no event has been
1013 * generated for the current association.
1014 */
1015 int last_cqm_event_signal;
1016
1017 int wmm_last_param_set;
1018 int mu_edca_last_param_set;
1019};
1020
1021struct ieee80211_link_data_ap {
1022 struct beacon_data __rcu *beacon;
1023 struct probe_resp __rcu *probe_resp;
1024 struct fils_discovery_data __rcu *fils_discovery;
1025 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
1026
1027 /* to be used after channel switch. */
1028 struct cfg80211_beacon_data *next_beacon;
1029};
1030
1031struct ieee80211_link_data {
1032 struct ieee80211_sub_if_data *sdata;
1033 unsigned int link_id;
1034
1035 struct list_head assigned_chanctx_list; /* protected by wiphy mutex */
1036 struct list_head reserved_chanctx_list; /* protected by wiphy mutex */
1037
1038 /* multicast keys only */
1039 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
1040 NUM_DEFAULT_MGMT_KEYS +
1041 NUM_DEFAULT_BEACON_KEYS];
1042 struct ieee80211_key __rcu *default_multicast_key;
1043 struct ieee80211_key __rcu *default_mgmt_key;
1044 struct ieee80211_key __rcu *default_beacon_key;
1045
1046
1047 bool operating_11g_mode;
1048
1049 struct {
1050 struct wiphy_work finalize_work;
1051 struct ieee80211_chan_req chanreq;
1052 } csa;
1053
1054 struct wiphy_work color_change_finalize_work;
1055 struct wiphy_delayed_work color_collision_detect_work;
1056 u64 color_bitmap;
1057
1058 /* context reservation -- protected with wiphy mutex */
1059 struct ieee80211_chanctx *reserved_chanctx;
1060 struct ieee80211_chan_req reserved;
1061 bool reserved_radar_required;
1062 bool reserved_ready;
1063
1064 u8 needed_rx_chains;
1065 enum ieee80211_smps_mode smps_mode;
1066
1067 int user_power_level; /* in dBm */
1068 int ap_power_level; /* in dBm */
1069
1070 bool radar_required;
1071 struct wiphy_delayed_work dfs_cac_timer_work;
1072
1073 union {
1074 struct ieee80211_link_data_managed mgd;
1075 struct ieee80211_link_data_ap ap;
1076 } u;
1077
1078 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
1079
1080 struct ieee80211_bss_conf *conf;
1081
1082#ifdef CONFIG_MAC80211_DEBUGFS
1083 struct dentry *debugfs_dir;
1084#endif
1085};
1086
1087struct ieee80211_sub_if_data {
1088 struct list_head list;
1089
1090 struct wireless_dev wdev;
1091
1092 /* keys */
1093 struct list_head key_list;
1094
1095 /* count for keys needing tailroom space allocation */
1096 int crypto_tx_tailroom_needed_cnt;
1097 int crypto_tx_tailroom_pending_dec;
1098 struct wiphy_delayed_work dec_tailroom_needed_wk;
1099
1100 struct net_device *dev;
1101 struct ieee80211_local *local;
1102
1103 unsigned int flags;
1104
1105 unsigned long state;
1106
1107 char name[IFNAMSIZ];
1108
1109 struct ieee80211_fragment_cache frags;
1110
1111 /* TID bitmap for NoAck policy */
1112 u16 noack_map;
1113
1114 /* bit field of ACM bits (BIT(802.1D tag)) */
1115 u8 wmm_acm;
1116
1117 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
1118 struct ieee80211_key __rcu *default_unicast_key;
1119
1120 u16 sequence_number;
1121 u16 mld_mcast_seq;
1122 __be16 control_port_protocol;
1123 bool control_port_no_encrypt;
1124 bool control_port_no_preauth;
1125 bool control_port_over_nl80211;
1126
1127 atomic_t num_tx_queued;
1128 struct mac80211_qos_map __rcu *qos_map;
1129
1130 struct wiphy_work work;
1131 struct sk_buff_head skb_queue;
1132 struct sk_buff_head status_queue;
1133
1134 /*
1135 * AP this belongs to: self in AP mode and
1136 * corresponding AP in VLAN mode, NULL for
1137 * all others (might be needed later in IBSS)
1138 */
1139 struct ieee80211_if_ap *bss;
1140
1141 /* bitmap of allowed (non-MCS) rate indexes for rate control */
1142 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1143
1144 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1145 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1146
1147 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1148 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1149
1150 /* Beacon frame (non-MCS) rate (as a bitmap) */
1151 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1152 bool beacon_rate_set;
1153
1154 union {
1155 struct ieee80211_if_ap ap;
1156 struct ieee80211_if_vlan vlan;
1157 struct ieee80211_if_managed mgd;
1158 struct ieee80211_if_ibss ibss;
1159 struct ieee80211_if_mesh mesh;
1160 struct ieee80211_if_ocb ocb;
1161 struct ieee80211_if_mntr mntr;
1162 struct ieee80211_if_nan nan;
1163 } u;
1164
1165 struct ieee80211_link_data deflink;
1166 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
1167
1168 /* for ieee80211_set_active_links_async() */
1169 struct wiphy_work activate_links_work;
1170 u16 desired_active_links;
1171
1172 u16 restart_active_links;
1173
1174#ifdef CONFIG_MAC80211_DEBUGFS
1175 struct {
1176 struct dentry *subdir_stations;
1177 struct dentry *default_unicast_key;
1178 struct dentry *default_multicast_key;
1179 struct dentry *default_mgmt_key;
1180 struct dentry *default_beacon_key;
1181 } debugfs;
1182#endif
1183
1184 /* must be last, dynamically sized area in this! */
1185 struct ieee80211_vif vif;
1186};
1187
1188static inline
1189struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1190{
1191 return container_of(p, struct ieee80211_sub_if_data, vif);
1192}
1193
1194#define sdata_dereference(p, sdata) \
1195 wiphy_dereference(sdata->local->hw.wiphy, p)
1196
1197#define for_each_sdata_link(_local, _link) \
1198 /* outer loop just to define the variables ... */ \
1199 for (struct ieee80211_sub_if_data *___sdata = NULL; \
1200 !___sdata; \
1201 ___sdata = (void *)~0 /* always stop */) \
1202 list_for_each_entry(___sdata, &(_local)->interfaces, list) \
1203 if (ieee80211_sdata_running(___sdata)) \
1204 for (int ___link_id = 0; \
1205 ___link_id < ARRAY_SIZE(___sdata->link); \
1206 ___link_id++) \
1207 if ((_link = wiphy_dereference((local)->hw.wiphy, \
1208 ___sdata->link[___link_id])))
1209
1210static inline int
1211ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
1212 struct cfg80211_rnr_elems *rnr_elems,
1213 u8 i)
1214{
1215 int len = 0;
1216
1217 if (!elems || !elems->cnt || i > elems->cnt)
1218 return 0;
1219
1220 if (i < elems->cnt) {
1221 len = elems->elem[i].len;
1222 if (rnr_elems) {
1223 len += rnr_elems->elem[i].len;
1224 for (i = elems->cnt; i < rnr_elems->cnt; i++)
1225 len += rnr_elems->elem[i].len;
1226 }
1227 return len;
1228 }
1229
1230 /* i == elems->cnt, calculate total length of all MBSSID elements */
1231 for (i = 0; i < elems->cnt; i++)
1232 len += elems->elem[i].len;
1233
1234 if (rnr_elems) {
1235 for (i = 0; i < rnr_elems->cnt; i++)
1236 len += rnr_elems->elem[i].len;
1237 }
1238
1239 return len;
1240}
1241
1242enum {
1243 IEEE80211_RX_MSG = 1,
1244 IEEE80211_TX_STATUS_MSG = 2,
1245};
1246
1247enum queue_stop_reason {
1248 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1249 IEEE80211_QUEUE_STOP_REASON_PS,
1250 IEEE80211_QUEUE_STOP_REASON_CSA,
1251 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1252 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1253 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1254 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1255 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1256 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1257 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1258 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1259
1260 IEEE80211_QUEUE_STOP_REASONS,
1261};
1262
1263#ifdef CONFIG_MAC80211_LEDS
1264struct tpt_led_trigger {
1265 char name[32];
1266 const struct ieee80211_tpt_blink *blink_table;
1267 unsigned int blink_table_len;
1268 struct timer_list timer;
1269 struct ieee80211_local *local;
1270 unsigned long prev_traffic;
1271 unsigned long tx_bytes, rx_bytes;
1272 unsigned int active, want;
1273 bool running;
1274};
1275#endif
1276
1277/**
1278 * enum mac80211_scan_flags - currently active scan mode
1279 *
1280 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1281 * well be on the operating channel
1282 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1283 * determine if we are on the operating channel or not
1284 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1285 * channel. This should not interrupt normal traffic.
1286 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1287 * that the scan completed.
1288 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1289 * a scan complete for an aborted scan.
1290 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1291 * cancelled.
1292 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1293 * and could send a probe request after receiving a beacon.
1294 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1295 */
1296enum mac80211_scan_flags {
1297 SCAN_SW_SCANNING,
1298 SCAN_HW_SCANNING,
1299 SCAN_ONCHANNEL_SCANNING,
1300 SCAN_COMPLETED,
1301 SCAN_ABORTED,
1302 SCAN_HW_CANCELLED,
1303 SCAN_BEACON_WAIT,
1304 SCAN_BEACON_DONE,
1305};
1306
1307/**
1308 * enum mac80211_scan_state - scan state machine states
1309 *
1310 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1311 * determines if we should keep on scanning or switch back to the
1312 * operating channel
1313 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1314 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1315 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1316 * send out data
1317 * @SCAN_RESUME: Resume the scan and scan the next channel
1318 * @SCAN_ABORT: Abort the scan and go back to operating channel
1319 */
1320enum mac80211_scan_state {
1321 SCAN_DECISION,
1322 SCAN_SET_CHANNEL,
1323 SCAN_SEND_PROBE,
1324 SCAN_SUSPEND,
1325 SCAN_RESUME,
1326 SCAN_ABORT,
1327};
1328
1329DECLARE_STATIC_KEY_FALSE(aql_disable);
1330
1331struct ieee80211_local {
1332 /* embed the driver visible part.
1333 * don't cast (use the static inlines below), but we keep
1334 * it first anyway so they become a no-op */
1335 struct ieee80211_hw hw;
1336
1337 struct fq fq;
1338 struct codel_vars *cvars;
1339 struct codel_params cparams;
1340
1341 /* protects active_txqs and txqi->schedule_order */
1342 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1343 struct list_head active_txqs[IEEE80211_NUM_ACS];
1344 u16 schedule_round[IEEE80211_NUM_ACS];
1345
1346 /* serializes ieee80211_handle_wake_tx_queue */
1347 spinlock_t handle_wake_tx_queue_lock;
1348
1349 u16 airtime_flags;
1350 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1351 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1352 u32 aql_threshold;
1353 atomic_t aql_total_pending_airtime;
1354 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
1355
1356 const struct ieee80211_ops *ops;
1357
1358 /*
1359 * private workqueue to mac80211. mac80211 makes this accessible
1360 * via ieee80211_queue_work()
1361 */
1362 struct workqueue_struct *workqueue;
1363
1364 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1365 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1366 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1367 spinlock_t queue_stop_reason_lock;
1368
1369 int open_count;
1370 int monitors, cooked_mntrs, tx_mntrs;
1371 /* number of interfaces with corresponding FIF_ flags */
1372 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1373 fif_probe_req;
1374 bool probe_req_reg;
1375 bool rx_mcast_action_reg;
1376 unsigned int filter_flags; /* FIF_* */
1377
1378 bool wiphy_ciphers_allocated;
1379
1380 struct cfg80211_chan_def dflt_chandef;
1381 bool emulate_chanctx;
1382
1383 /* protects the aggregated multicast list and filter calls */
1384 spinlock_t filter_lock;
1385
1386 /* used for uploading changed mc list */
1387 struct wiphy_work reconfig_filter;
1388
1389 /* aggregated multicast list */
1390 struct netdev_hw_addr_list mc_list;
1391
1392 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1393
1394 /*
1395 * suspended is true if we finished all the suspend _and_ we have
1396 * not yet come up from resume. This is to be used by mac80211
1397 * to ensure driver sanity during suspend and mac80211's own
1398 * sanity. It can eventually be used for WoW as well.
1399 */
1400 bool suspended;
1401
1402 /* suspending is true during the whole suspend process */
1403 bool suspending;
1404
1405 /*
1406 * Resuming is true while suspended, but when we're reprogramming the
1407 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1408 * again even though some other parts of the stack are still suspended
1409 * and we still drop received frames to avoid waking the stack.
1410 */
1411 bool resuming;
1412
1413 /*
1414 * quiescing is true during the suspend process _only_ to
1415 * ease timer cancelling etc.
1416 */
1417 bool quiescing;
1418
1419 /* device is started */
1420 bool started;
1421
1422 /* device is during a HW reconfig */
1423 bool in_reconfig;
1424
1425 /* reconfiguration failed ... suppress some warnings etc. */
1426 bool reconfig_failure;
1427
1428 /* wowlan is enabled -- don't reconfig on resume */
1429 bool wowlan;
1430
1431 struct wiphy_work radar_detected_work;
1432
1433 /* number of RX chains the hardware has */
1434 u8 rx_chains;
1435
1436 /* bitmap of which sbands were copied */
1437 u8 sband_allocated;
1438
1439 int tx_headroom; /* required headroom for hardware/radiotap */
1440
1441 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1442 * added to skb_queue will be processed, but frames in
1443 * skb_queue_unreliable may be dropped if the total length of these
1444 * queues increases over the limit. */
1445#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1446 struct tasklet_struct tasklet;
1447 struct sk_buff_head skb_queue;
1448 struct sk_buff_head skb_queue_unreliable;
1449
1450 spinlock_t rx_path_lock;
1451
1452 /* Station data */
1453 /*
1454 * The list, hash table and counter are protected
1455 * by the wiphy mutex, reads are done with RCU.
1456 */
1457 spinlock_t tim_lock;
1458 unsigned long num_sta;
1459 struct list_head sta_list;
1460 struct rhltable sta_hash;
1461 struct rhltable link_sta_hash;
1462 struct timer_list sta_cleanup;
1463 int sta_generation;
1464
1465 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1466 struct tasklet_struct tx_pending_tasklet;
1467 struct tasklet_struct wake_txqs_tasklet;
1468
1469 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1470
1471 /* number of interfaces with allmulti RX */
1472 atomic_t iff_allmultis;
1473
1474 struct rate_control_ref *rate_ctrl;
1475
1476 struct arc4_ctx wep_tx_ctx;
1477 struct arc4_ctx wep_rx_ctx;
1478 u32 wep_iv;
1479
1480 /* see iface.c */
1481 struct list_head interfaces;
1482 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1483 struct mutex iflist_mtx;
1484
1485 /* Scanning and BSS list */
1486 unsigned long scanning;
1487 struct cfg80211_ssid scan_ssid;
1488 struct cfg80211_scan_request *int_scan_req;
1489 struct cfg80211_scan_request __rcu *scan_req;
1490 struct ieee80211_scan_request *hw_scan_req;
1491 struct cfg80211_chan_def scan_chandef;
1492 enum nl80211_band hw_scan_band;
1493 int scan_channel_idx;
1494 int scan_ies_len;
1495 int hw_scan_ies_bufsize;
1496 struct cfg80211_scan_info scan_info;
1497
1498 struct wiphy_work sched_scan_stopped_work;
1499 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1500 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1501 u8 scan_addr[ETH_ALEN];
1502
1503 unsigned long leave_oper_channel_time;
1504 enum mac80211_scan_state next_scan_state;
1505 struct wiphy_delayed_work scan_work;
1506 struct ieee80211_sub_if_data __rcu *scan_sdata;
1507
1508 /* Temporary remain-on-channel for off-channel operations */
1509 struct ieee80211_channel *tmp_channel;
1510
1511 /* channel contexts */
1512 struct list_head chanctx_list;
1513
1514#ifdef CONFIG_MAC80211_LEDS
1515 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1516 struct led_trigger tpt_led;
1517 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1518 atomic_t radio_led_active, tpt_led_active;
1519 struct tpt_led_trigger *tpt_led_trigger;
1520#endif
1521
1522#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1523 /* SNMP counters */
1524 /* dot11CountersTable */
1525 u32 dot11TransmittedFragmentCount;
1526 u32 dot11MulticastTransmittedFrameCount;
1527 u32 dot11FailedCount;
1528 u32 dot11RetryCount;
1529 u32 dot11MultipleRetryCount;
1530 u32 dot11FrameDuplicateCount;
1531 u32 dot11ReceivedFragmentCount;
1532 u32 dot11MulticastReceivedFrameCount;
1533 u32 dot11TransmittedFrameCount;
1534
1535 /* TX/RX handler statistics */
1536 unsigned int tx_handlers_drop;
1537 unsigned int tx_handlers_queued;
1538 unsigned int tx_handlers_drop_wep;
1539 unsigned int tx_handlers_drop_not_assoc;
1540 unsigned int tx_handlers_drop_unauth_port;
1541 unsigned int rx_handlers_drop;
1542 unsigned int rx_handlers_queued;
1543 unsigned int rx_handlers_drop_nullfunc;
1544 unsigned int rx_handlers_drop_defrag;
1545 unsigned int tx_expand_skb_head;
1546 unsigned int tx_expand_skb_head_cloned;
1547 unsigned int rx_expand_skb_head_defrag;
1548 unsigned int rx_handlers_fragments;
1549 unsigned int tx_status_drop;
1550#define I802_DEBUG_INC(c) (c)++
1551#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1552#define I802_DEBUG_INC(c) do { } while (0)
1553#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1554
1555
1556 int total_ps_buffered; /* total number of all buffered unicast and
1557 * multicast packets for power saving stations
1558 */
1559
1560 bool pspolling;
1561 /*
1562 * PS can only be enabled when we have exactly one managed
1563 * interface (and monitors) in PS, this then points there.
1564 */
1565 struct ieee80211_sub_if_data *ps_sdata;
1566 struct wiphy_work dynamic_ps_enable_work;
1567 struct wiphy_work dynamic_ps_disable_work;
1568 struct timer_list dynamic_ps_timer;
1569 struct notifier_block ifa_notifier;
1570 struct notifier_block ifa6_notifier;
1571
1572 /*
1573 * The dynamic ps timeout configured from user space via WEXT -
1574 * this will override whatever chosen by mac80211 internally.
1575 */
1576 int dynamic_ps_forced_timeout;
1577
1578 int user_power_level; /* in dBm, for all interfaces */
1579
1580 struct work_struct restart_work;
1581
1582#ifdef CONFIG_MAC80211_DEBUGFS
1583 struct local_debugfsdentries {
1584 struct dentry *rcdir;
1585 struct dentry *keys;
1586 } debugfs;
1587 bool force_tx_status;
1588#endif
1589
1590 /*
1591 * Remain-on-channel support
1592 */
1593 struct wiphy_delayed_work roc_work;
1594 struct list_head roc_list;
1595 struct wiphy_work hw_roc_start, hw_roc_done;
1596 unsigned long hw_roc_start_time;
1597 u64 roc_cookie_counter;
1598
1599 struct idr ack_status_frames;
1600 spinlock_t ack_status_lock;
1601
1602 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1603
1604 /* virtual monitor interface */
1605 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1606 struct ieee80211_chan_req monitor_chanreq;
1607
1608 /* extended capabilities provided by mac80211 */
1609 u8 ext_capa[8];
1610
1611 bool wbrf_supported;
1612};
1613
1614static inline struct ieee80211_sub_if_data *
1615IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1616{
1617 return netdev_priv(dev);
1618}
1619
1620static inline struct ieee80211_sub_if_data *
1621IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1622{
1623 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1624}
1625
1626static inline struct ieee80211_supported_band *
1627ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1628{
1629 struct ieee80211_local *local = sdata->local;
1630 struct ieee80211_chanctx_conf *chanctx_conf;
1631 enum nl80211_band band;
1632
1633 WARN_ON(ieee80211_vif_is_mld(&sdata->vif));
1634
1635 rcu_read_lock();
1636 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1637
1638 if (!chanctx_conf) {
1639 rcu_read_unlock();
1640 return NULL;
1641 }
1642
1643 band = chanctx_conf->def.chan->band;
1644 rcu_read_unlock();
1645
1646 return local->hw.wiphy->bands[band];
1647}
1648
1649static inline struct ieee80211_supported_band *
1650ieee80211_get_link_sband(struct ieee80211_link_data *link)
1651{
1652 struct ieee80211_local *local = link->sdata->local;
1653 struct ieee80211_chanctx_conf *chanctx_conf;
1654 enum nl80211_band band;
1655
1656 rcu_read_lock();
1657 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
1658 if (!chanctx_conf) {
1659 rcu_read_unlock();
1660 return NULL;
1661 }
1662
1663 band = chanctx_conf->def.chan->band;
1664 rcu_read_unlock();
1665
1666 return local->hw.wiphy->bands[band];
1667}
1668
1669/* this struct holds the value parsing from channel switch IE */
1670struct ieee80211_csa_ie {
1671 struct ieee80211_chan_req chanreq;
1672 u8 mode;
1673 u8 count;
1674 u8 ttl;
1675 u16 pre_value;
1676 u16 reason_code;
1677 u32 max_switch_time;
1678};
1679
1680enum ieee80211_elems_parse_error {
1681 IEEE80211_PARSE_ERR_INVALID_END = BIT(0),
1682 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1),
1683 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2),
1684 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3),
1685 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4),
1686};
1687
1688/* Parsed Information Elements */
1689struct ieee802_11_elems {
1690 const u8 *ie_start;
1691 size_t total_len;
1692 u32 crc;
1693
1694 /* pointers to IEs */
1695 const struct ieee80211_tdls_lnkie *lnk_id;
1696 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1697 const u8 *ext_capab;
1698 const u8 *ssid;
1699 const u8 *supp_rates;
1700 const u8 *ds_params;
1701 const struct ieee80211_tim_ie *tim;
1702 const u8 *rsn;
1703 const u8 *rsnx;
1704 const u8 *erp_info;
1705 const u8 *ext_supp_rates;
1706 const u8 *wmm_info;
1707 const u8 *wmm_param;
1708 const struct ieee80211_ht_cap *ht_cap_elem;
1709 const struct ieee80211_ht_operation *ht_operation;
1710 const struct ieee80211_vht_cap *vht_cap_elem;
1711 const struct ieee80211_vht_operation *vht_operation;
1712 const struct ieee80211_meshconf_ie *mesh_config;
1713 const u8 *he_cap;
1714 const struct ieee80211_he_operation *he_operation;
1715 const struct ieee80211_he_spr *he_spr;
1716 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1717 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1718 const u8 *uora_element;
1719 const u8 *mesh_id;
1720 const u8 *peering;
1721 const __le16 *awake_window;
1722 const u8 *preq;
1723 const u8 *prep;
1724 const u8 *perr;
1725 const struct ieee80211_rann_ie *rann;
1726 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1727 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1728 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1729 const u8 *max_channel_switch_time;
1730 const u8 *country_elem;
1731 const u8 *pwr_constr_elem;
1732 const u8 *cisco_dtpc_elem;
1733 const struct ieee80211_timeout_interval_ie *timeout_int;
1734 const u8 *opmode_notif;
1735 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1736 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1737 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1738 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1739 const struct ieee80211_bssid_index *bssid_index;
1740 u8 max_bssid_indicator;
1741 u8 dtim_count;
1742 u8 dtim_period;
1743 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1744 const struct ieee80211_s1g_cap *s1g_capab;
1745 const struct ieee80211_s1g_oper_ie *s1g_oper;
1746 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1747 const struct ieee80211_aid_response_ie *aid_resp;
1748 const struct ieee80211_eht_cap_elem *eht_cap;
1749 const struct ieee80211_eht_operation *eht_operation;
1750 const struct ieee80211_multi_link_elem *ml_basic;
1751 const struct ieee80211_multi_link_elem *ml_reconf;
1752 const struct ieee80211_multi_link_elem *ml_epcs;
1753 const struct ieee80211_bandwidth_indication *bandwidth_indication;
1754 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT];
1755
1756 /* not the order in the psd values is per element, not per chandef */
1757 struct ieee80211_parsed_tpe tpe;
1758 struct ieee80211_parsed_tpe csa_tpe;
1759
1760 /* length of them, respectively */
1761 u8 ext_capab_len;
1762 u8 ssid_len;
1763 u8 supp_rates_len;
1764 u8 tim_len;
1765 u8 rsn_len;
1766 u8 rsnx_len;
1767 u8 ext_supp_rates_len;
1768 u8 wmm_info_len;
1769 u8 wmm_param_len;
1770 u8 he_cap_len;
1771 u8 mesh_id_len;
1772 u8 peering_len;
1773 u8 preq_len;
1774 u8 prep_len;
1775 u8 perr_len;
1776 u8 country_elem_len;
1777 u8 bssid_index_len;
1778 u8 eht_cap_len;
1779
1780 /* mult-link element can be de-fragmented and thus u8 is not sufficient */
1781 size_t ml_basic_len;
1782 size_t ml_reconf_len;
1783 size_t ml_epcs_len;
1784
1785 u8 ttlm_num;
1786
1787 /*
1788 * store the per station profile pointer and length in case that the
1789 * parsing also handled Multi-Link element parsing for a specific link
1790 * ID.
1791 */
1792 struct ieee80211_mle_per_sta_profile *prof;
1793 size_t sta_prof_len;
1794
1795 /* whether/which parse error occurred while retrieving these elements */
1796 u8 parse_error;
1797};
1798
1799static inline struct ieee80211_local *hw_to_local(
1800 struct ieee80211_hw *hw)
1801{
1802 return container_of(hw, struct ieee80211_local, hw);
1803}
1804
1805static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1806{
1807 return container_of(txq, struct txq_info, txq);
1808}
1809
1810static inline bool txq_has_queue(struct ieee80211_txq *txq)
1811{
1812 struct txq_info *txqi = to_txq_info(txq);
1813
1814 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1815}
1816
1817static inline bool
1818ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1819{
1820 return status->flag & RX_FLAG_MACTIME;
1821}
1822
1823void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1824void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1825
1826void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata);
1827void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata);
1828
1829/* This function returns the number of multicast stations connected to this
1830 * interface. It returns -1 if that number is not tracked, that is for netdevs
1831 * not in AP or AP_VLAN mode or when using 4addr.
1832 */
1833static inline int
1834ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1835{
1836 if (sdata->vif.type == NL80211_IFTYPE_AP)
1837 return atomic_read(&sdata->u.ap.num_mcast_sta);
1838 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1839 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1840 return -1;
1841}
1842
1843u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1844 struct ieee80211_rx_status *status,
1845 unsigned int mpdu_len,
1846 unsigned int mpdu_offset);
1847int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1848int ieee80211_hw_conf_chan(struct ieee80211_local *local);
1849void ieee80211_hw_conf_init(struct ieee80211_local *local);
1850void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1851void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1852 u64 changed);
1853void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1854 u64 changed);
1855void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1856 struct ieee80211_link_data *link,
1857 u64 changed);
1858void ieee80211_configure_filter(struct ieee80211_local *local);
1859u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1860
1861void ieee80211_handle_queued_frames(struct ieee80211_local *local);
1862
1863u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1864int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1865 u64 *cookie, gfp_t gfp);
1866
1867void ieee80211_check_fast_rx(struct sta_info *sta);
1868void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1869void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1870void ieee80211_clear_fast_rx(struct sta_info *sta);
1871
1872bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
1873 const u8 *addr, int *out_link_id);
1874
1875/* STA code */
1876void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1877int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1878 struct cfg80211_auth_request *req);
1879int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1880 struct cfg80211_assoc_request *req);
1881int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1882 struct cfg80211_deauth_request *req);
1883int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1884 struct cfg80211_disassoc_request *req);
1885void ieee80211_send_pspoll(struct ieee80211_local *local,
1886 struct ieee80211_sub_if_data *sdata);
1887void ieee80211_recalc_ps(struct ieee80211_local *local);
1888void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1889void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1890void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1891 struct sk_buff *skb);
1892void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1893 struct sk_buff *skb);
1894void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1895void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1896void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1897void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1898 __le16 fc, bool acked);
1899void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1900void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1901void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1902void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1903 u8 reason, bool tx);
1904void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
1905void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
1906void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link);
1907
1908/* IBSS code */
1909void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1910void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1911void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1912 const u8 *bssid, const u8 *addr, u32 supp_rates);
1913int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1914 struct cfg80211_ibss_params *params);
1915int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1916void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1917void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1918 struct sk_buff *skb);
1919int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1920 struct cfg80211_csa_settings *csa_settings,
1921 u64 *changed);
1922int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata,
1923 u64 *changed);
1924void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1925
1926/* OCB code */
1927void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1928void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1929 const u8 *bssid, const u8 *addr, u32 supp_rates);
1930void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1931int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1932 struct ocb_setup *setup);
1933int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1934
1935/* mesh code */
1936void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1937void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1938 struct sk_buff *skb);
1939int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1940 struct cfg80211_csa_settings *csa_settings,
1941 u64 *changed);
1942int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
1943 u64 *changed);
1944
1945/* scan/BSS handling */
1946void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work);
1947int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1948 const u8 *ssid, u8 ssid_len,
1949 struct ieee80211_channel **channels,
1950 unsigned int n_channels);
1951int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1952 struct cfg80211_scan_request *req);
1953void ieee80211_scan_cancel(struct ieee80211_local *local);
1954void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1955void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1956
1957void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss,
1958 const struct cfg80211_bss_ies *ies, void *data);
1959
1960void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1961struct ieee80211_bss *
1962ieee80211_bss_info_update(struct ieee80211_local *local,
1963 struct ieee80211_rx_status *rx_status,
1964 struct ieee80211_mgmt *mgmt,
1965 size_t len,
1966 struct ieee80211_channel *channel);
1967void ieee80211_rx_bss_put(struct ieee80211_local *local,
1968 struct ieee80211_bss *bss);
1969
1970/* scheduled scan handling */
1971int
1972__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1973 struct cfg80211_sched_scan_request *req);
1974int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1975 struct cfg80211_sched_scan_request *req);
1976int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1977void ieee80211_sched_scan_end(struct ieee80211_local *local);
1978void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy,
1979 struct wiphy_work *work);
1980
1981/* off-channel/mgmt-tx */
1982void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1983void ieee80211_offchannel_return(struct ieee80211_local *local);
1984void ieee80211_roc_setup(struct ieee80211_local *local);
1985void ieee80211_start_next_roc(struct ieee80211_local *local);
1986void ieee80211_reconfig_roc(struct ieee80211_local *local);
1987void ieee80211_roc_purge(struct ieee80211_local *local,
1988 struct ieee80211_sub_if_data *sdata);
1989int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1990 struct ieee80211_channel *chan,
1991 unsigned int duration, u64 *cookie);
1992int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1993 struct wireless_dev *wdev, u64 cookie);
1994int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1995 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1996int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1997 struct wireless_dev *wdev, u64 cookie);
1998
1999/* channel switch handling */
2000void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work);
2001int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2002 struct cfg80211_csa_settings *params);
2003
2004/* color change handling */
2005void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
2006 struct wiphy_work *work);
2007void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
2008 struct wiphy_work *work);
2009
2010/* interface handling */
2011#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
2012 NETIF_F_HW_CSUM | NETIF_F_SG | \
2013 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
2014 NETIF_F_HW_TC)
2015#define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
2016#define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
2017 MAC80211_SUPPORTED_FEATURES_RX)
2018
2019int ieee80211_iface_init(void);
2020void ieee80211_iface_exit(void);
2021int ieee80211_if_add(struct ieee80211_local *local, const char *name,
2022 unsigned char name_assign_type,
2023 struct wireless_dev **new_wdev, enum nl80211_iftype type,
2024 struct vif_params *params);
2025int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
2026 enum nl80211_iftype type);
2027void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
2028void ieee80211_remove_interfaces(struct ieee80211_local *local);
2029u32 ieee80211_idle_off(struct ieee80211_local *local);
2030void ieee80211_recalc_idle(struct ieee80211_local *local);
2031void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
2032 const int offset);
2033int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
2034void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
2035int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
2036void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
2037
2038bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link);
2039void ieee80211_recalc_txpower(struct ieee80211_link_data *link,
2040 bool update_bss);
2041void ieee80211_recalc_offload(struct ieee80211_local *local);
2042
2043static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
2044{
2045 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
2046}
2047
2048/* link handling */
2049void ieee80211_link_setup(struct ieee80211_link_data *link);
2050void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
2051 int link_id,
2052 struct ieee80211_link_data *link,
2053 struct ieee80211_bss_conf *link_conf);
2054void ieee80211_link_stop(struct ieee80211_link_data *link);
2055int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2056 u16 new_links, u16 dormant_links);
2057static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata)
2058{
2059 ieee80211_vif_set_links(sdata, 0, 0);
2060}
2061
2062/* tx handling */
2063void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2064void ieee80211_tx_pending(struct tasklet_struct *t);
2065netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2066 struct net_device *dev);
2067netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2068 struct net_device *dev);
2069netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2070 struct net_device *dev);
2071void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2072 struct net_device *dev,
2073 u32 info_flags,
2074 u32 ctrl_flags,
2075 u64 *cookie);
2076struct sk_buff *
2077ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2078 struct sk_buff *skb, u32 info_flags);
2079void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2080 int retry_count, bool send_to_cooked,
2081 struct ieee80211_tx_status *status);
2082
2083void ieee80211_check_fast_xmit(struct sta_info *sta);
2084void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2085void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2086void ieee80211_clear_fast_xmit(struct sta_info *sta);
2087int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2088 const u8 *buf, size_t len,
2089 const u8 *dest, __be16 proto, bool unencrypted,
2090 int link_id, u64 *cookie);
2091int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2092 const u8 *buf, size_t len);
2093void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
2094 struct sta_info *sta,
2095 struct ieee80211_fast_tx *fast_tx,
2096 struct sk_buff *skb, bool ampdu,
2097 const u8 *da, const u8 *sa);
2098void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
2099 struct sta_info *sta, struct sk_buff *skb);
2100
2101/* HT */
2102void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2103 struct ieee80211_sta_ht_cap *ht_cap);
2104bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2105 struct ieee80211_supported_band *sband,
2106 const struct ieee80211_ht_cap *ht_cap_ie,
2107 struct link_sta_info *link_sta);
2108void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2109 const u8 *da, u16 tid,
2110 u16 initiator, u16 reason_code);
2111int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2112 enum ieee80211_smps_mode smps, const u8 *da,
2113 const u8 *bssid, int link_id);
2114bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
2115 enum ieee80211_smps_mode smps_mode_new);
2116void ieee80211_add_addbaext(struct sk_buff *skb,
2117 const u8 req_addba_ext_data,
2118 u16 buf_size);
2119u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta,
2120 const void *elem_data, ssize_t elem_len,
2121 u16 *buf_size);
2122void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2123 u16 initiator, u16 reason, bool stop);
2124void __ieee80211_start_rx_ba_session(struct sta_info *sta,
2125 u8 dialog_token, u16 timeout,
2126 u16 start_seq_num, u16 ba_policy, u16 tid,
2127 u16 buf_size, bool tx, bool auto_seq,
2128 const u8 addba_ext_data);
2129void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2130 enum ieee80211_agg_stop_reason reason);
2131void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2132 struct sta_info *sta,
2133 struct ieee80211_mgmt *mgmt, size_t len);
2134void ieee80211_process_addba_resp(struct ieee80211_local *local,
2135 struct sta_info *sta,
2136 struct ieee80211_mgmt *mgmt,
2137 size_t len);
2138void ieee80211_process_addba_request(struct ieee80211_local *local,
2139 struct sta_info *sta,
2140 struct ieee80211_mgmt *mgmt,
2141 size_t len);
2142
2143static inline struct ieee80211_mgmt *
2144ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da,
2145 struct ieee80211_sub_if_data *sdata)
2146{
2147 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24);
2148
2149 ether_addr_copy(mgmt->da, da);
2150 ether_addr_copy(mgmt->sa, sdata->vif.addr);
2151
2152 if (sdata->vif.type == NL80211_IFTYPE_AP ||
2153 sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
2154 sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
2155 ether_addr_copy(mgmt->bssid, sdata->vif.addr);
2156 else if (sdata->vif.type == NL80211_IFTYPE_STATION)
2157 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr);
2158 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
2159 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid);
2160
2161 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2162 IEEE80211_STYPE_ACTION);
2163 return mgmt;
2164}
2165
2166int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2167 enum ieee80211_agg_stop_reason reason);
2168void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2169 struct tid_ampdu_tx *tid_tx);
2170void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2171 struct tid_ampdu_tx *tid_tx);
2172void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work);
2173void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2174void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2175
2176u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2177enum nl80211_smps_mode
2178ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2179
2180/* VHT */
2181void
2182ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2183 struct ieee80211_supported_band *sband,
2184 const struct ieee80211_vht_cap *vht_cap_ie,
2185 const struct ieee80211_vht_cap *vht_cap_ie2,
2186 struct link_sta_info *link_sta);
2187enum ieee80211_sta_rx_bandwidth
2188_ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta,
2189 struct cfg80211_chan_def *chandef);
2190static inline enum ieee80211_sta_rx_bandwidth
2191ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta)
2192{
2193 return _ieee80211_sta_cap_rx_bw(link_sta, NULL);
2194}
2195enum ieee80211_sta_rx_bandwidth
2196_ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta,
2197 struct cfg80211_chan_def *chandef);
2198static inline enum ieee80211_sta_rx_bandwidth
2199ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta)
2200{
2201 return _ieee80211_sta_cur_vht_bw(link_sta, NULL);
2202}
2203void ieee80211_sta_init_nss(struct link_sta_info *link_sta);
2204enum nl80211_chan_width
2205ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
2206void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2207 struct ieee80211_link_data *link,
2208 struct ieee80211_mgmt *mgmt);
2209u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2210 struct link_sta_info *sta,
2211 u8 opmode, enum nl80211_band band);
2212void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2213 struct link_sta_info *sta,
2214 u8 opmode, enum nl80211_band band);
2215void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2216 struct ieee80211_sta_vht_cap *vht_cap);
2217void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2218 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2219enum nl80211_chan_width
2220ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
2221
2222/* HE */
2223void
2224ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2225 struct ieee80211_supported_band *sband,
2226 const u8 *he_cap_ie, u8 he_cap_len,
2227 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2228 struct link_sta_info *link_sta);
2229void
2230ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2231 const struct ieee80211_he_spr *he_spr_ie_elem);
2232
2233void
2234ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2235 const struct ieee80211_he_operation *he_op_ie_elem);
2236
2237/* S1G */
2238void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2239bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2240void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2241 struct sk_buff *skb);
2242void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2243 struct sk_buff *skb);
2244
2245/* Spectrum management */
2246void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2247 struct ieee80211_mgmt *mgmt,
2248 size_t len);
2249/**
2250 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2251 * @sdata: the sdata of the interface which has received the frame
2252 * @elems: parsed 802.11 elements received with the frame
2253 * @current_band: indicates the current band
2254 * @vht_cap_info: VHT capabilities of the transmitter
2255 * @conn: contains information about own capabilities and restrictions
2256 * to decide which channel switch announcements can be accepted
2257 * @bssid: the currently connected bssid (for reporting)
2258 * @unprot_action: whether the frame was an unprotected frame or not,
2259 * used for reporting
2260 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2261 * All of them will be filled with if success only.
2262 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2263 */
2264int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2265 struct ieee802_11_elems *elems,
2266 enum nl80211_band current_band,
2267 u32 vht_cap_info,
2268 struct ieee80211_conn_settings *conn,
2269 u8 *bssid, bool unprot_action,
2270 struct ieee80211_csa_ie *csa_ie);
2271
2272/* Suspend/resume and hw reconfiguration */
2273int ieee80211_reconfig(struct ieee80211_local *local);
2274void ieee80211_stop_device(struct ieee80211_local *local, bool suspend);
2275
2276int __ieee80211_suspend(struct ieee80211_hw *hw,
2277 struct cfg80211_wowlan *wowlan);
2278
2279static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2280{
2281 struct ieee80211_local *local = hw_to_local(hw);
2282
2283 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2284 !test_bit(SCAN_COMPLETED, &local->scanning),
2285 "%s: resume with hardware scan still in progress\n",
2286 wiphy_name(hw->wiphy));
2287
2288 return ieee80211_reconfig(hw_to_local(hw));
2289}
2290
2291/* utility functions/constants */
2292extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2293const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode);
2294enum ieee80211_conn_bw_limit
2295ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef);
2296int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2297 int rate, int erp, int short_preamble);
2298void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2299 struct ieee80211_tx_queue_params *qparam,
2300 int ac);
2301void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe);
2302void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
2303 bool bss_notify, bool enable_qos);
2304void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2305 struct sta_info *sta, struct sk_buff *skb);
2306
2307void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2308 struct sk_buff *skb, int tid, int link_id,
2309 enum nl80211_band band);
2310
2311/* sta_out needs to be checked for ERR_PTR() before using */
2312int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2313 struct sk_buff *skb,
2314 struct sta_info **sta_out);
2315
2316static inline void
2317ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2318 struct sk_buff *skb, int tid,
2319 enum nl80211_band band)
2320{
2321 rcu_read_lock();
2322 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band);
2323 rcu_read_unlock();
2324}
2325
2326void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2327 struct sk_buff *skb, int tid, int link_id);
2328
2329static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2330 struct sk_buff *skb)
2331{
2332 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2333 ieee80211_tx_skb_tid(sdata, skb, 7, -1);
2334}
2335
2336/**
2337 * struct ieee80211_elems_parse_params - element parsing parameters
2338 * @mode: connection mode for parsing
2339 * @start: pointer to the elements
2340 * @len: length of the elements
2341 * @action: %true if the elements came from an action frame
2342 * @filter: bitmap of element IDs to filter out while calculating
2343 * the element CRC
2344 * @crc: CRC starting value
2345 * @bss: the BSS to parse this as, for multi-BSSID cases this can
2346 * represent a non-transmitting BSS in which case the data
2347 * for that non-transmitting BSS is returned
2348 * @link_id: the link ID to parse elements for, if a STA profile
2349 * is present in the multi-link element, or -1 to ignore;
2350 * note that the code currently assumes parsing an association
2351 * (or re-association) response frame if this is given
2352 * @from_ap: frame is received from an AP (currently used only
2353 * for EHT capabilities parsing)
2354 */
2355struct ieee80211_elems_parse_params {
2356 enum ieee80211_conn_mode mode;
2357 const u8 *start;
2358 size_t len;
2359 bool action;
2360 u64 filter;
2361 u32 crc;
2362 struct cfg80211_bss *bss;
2363 int link_id;
2364 bool from_ap;
2365};
2366
2367struct ieee802_11_elems *
2368ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
2369
2370static inline struct ieee802_11_elems *
2371ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2372 u64 filter, u32 crc,
2373 struct cfg80211_bss *bss)
2374{
2375 struct ieee80211_elems_parse_params params = {
2376 .mode = IEEE80211_CONN_MODE_HIGHEST,
2377 .start = start,
2378 .len = len,
2379 .action = action,
2380 .filter = filter,
2381 .crc = crc,
2382 .bss = bss,
2383 .link_id = -1,
2384 };
2385
2386 return ieee802_11_parse_elems_full(¶ms);
2387}
2388
2389static inline struct ieee802_11_elems *
2390ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2391 struct cfg80211_bss *bss)
2392{
2393 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss);
2394}
2395
2396extern const int ieee802_1d_to_ac[8];
2397
2398static inline int ieee80211_ac_from_tid(int tid)
2399{
2400 return ieee802_1d_to_ac[tid & 7];
2401}
2402
2403void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy,
2404 struct wiphy_work *work);
2405void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy,
2406 struct wiphy_work *work);
2407void ieee80211_dynamic_ps_timer(struct timer_list *t);
2408void ieee80211_send_nullfunc(struct ieee80211_local *local,
2409 struct ieee80211_sub_if_data *sdata,
2410 bool powersave);
2411void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2412 struct ieee80211_sub_if_data *sdata);
2413void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2414 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2415unsigned int
2416ieee80211_get_vif_queues(struct ieee80211_local *local,
2417 struct ieee80211_sub_if_data *sdata);
2418void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2419 unsigned long queues,
2420 enum queue_stop_reason reason,
2421 bool refcounted);
2422void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2423 unsigned long queues,
2424 enum queue_stop_reason reason,
2425 bool refcounted);
2426void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2427 enum queue_stop_reason reason,
2428 bool refcounted);
2429void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2430 enum queue_stop_reason reason,
2431 bool refcounted);
2432static inline void
2433ieee80211_stop_vif_queues(struct ieee80211_local *local,
2434 struct ieee80211_sub_if_data *sdata,
2435 enum queue_stop_reason reason)
2436{
2437 ieee80211_stop_queues_by_reason(&local->hw,
2438 ieee80211_get_vif_queues(local, sdata),
2439 reason, true);
2440}
2441
2442static inline void
2443ieee80211_wake_vif_queues(struct ieee80211_local *local,
2444 struct ieee80211_sub_if_data *sdata,
2445 enum queue_stop_reason reason)
2446{
2447 ieee80211_wake_queues_by_reason(&local->hw,
2448 ieee80211_get_vif_queues(local, sdata),
2449 reason, true);
2450}
2451static inline void
2452ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local,
2453 struct ieee80211_sub_if_data *sdata,
2454 enum queue_stop_reason reason)
2455{
2456 ieee80211_stop_queues_by_reason(&local->hw,
2457 ieee80211_get_vif_queues(local, sdata),
2458 reason, false);
2459}
2460static inline void
2461ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local,
2462 struct ieee80211_sub_if_data *sdata,
2463 enum queue_stop_reason reason)
2464{
2465 ieee80211_wake_queues_by_reason(&local->hw,
2466 ieee80211_get_vif_queues(local, sdata),
2467 reason, false);
2468}
2469void ieee80211_add_pending_skb(struct ieee80211_local *local,
2470 struct sk_buff *skb);
2471void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2472 struct sk_buff_head *skbs);
2473void ieee80211_flush_queues(struct ieee80211_local *local,
2474 struct ieee80211_sub_if_data *sdata, bool drop);
2475void __ieee80211_flush_queues(struct ieee80211_local *local,
2476 struct ieee80211_sub_if_data *sdata,
2477 unsigned int queues, bool drop);
2478
2479static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2480{
2481 /*
2482 * It's unsafe to try to do any work during reconfigure flow.
2483 * When the flow ends the work will be requeued.
2484 */
2485 if (local->in_reconfig)
2486 return false;
2487
2488 /*
2489 * If quiescing is set, we are racing with __ieee80211_suspend.
2490 * __ieee80211_suspend flushes the workers after setting quiescing,
2491 * and we check quiescing / suspended before enqueuing new workers.
2492 * We should abort the worker to avoid the races below.
2493 */
2494 if (local->quiescing)
2495 return false;
2496
2497 /*
2498 * We might already be suspended if the following scenario occurs:
2499 * __ieee80211_suspend Control path
2500 *
2501 * if (local->quiescing)
2502 * return;
2503 * local->quiescing = true;
2504 * flush_workqueue();
2505 * queue_work(...);
2506 * local->suspended = true;
2507 * local->quiescing = false;
2508 * worker starts running...
2509 */
2510 if (local->suspended)
2511 return false;
2512
2513 return true;
2514}
2515
2516int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2517void ieee80211_txq_set_params(struct ieee80211_local *local);
2518void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2519void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2520 struct sta_info *sta,
2521 struct txq_info *txq, int tid);
2522void ieee80211_txq_purge(struct ieee80211_local *local,
2523 struct txq_info *txqi);
2524void ieee80211_purge_sta_txqs(struct sta_info *sta);
2525void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2526 struct ieee80211_sub_if_data *sdata);
2527void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2528 struct txq_info *txqi);
2529void ieee80211_wake_txqs(struct tasklet_struct *t);
2530void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2531 u16 transaction, u16 auth_alg, u16 status,
2532 const u8 *extra, size_t extra_len, const u8 *bssid,
2533 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2534 u32 tx_flags);
2535void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2536 const u8 *da, const u8 *bssid,
2537 u16 stype, u16 reason,
2538 bool send_frame, u8 *frame_buf);
2539
2540enum {
2541 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2542 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2543 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2544};
2545
2546int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2547 size_t buffer_len,
2548 struct ieee80211_scan_ies *ie_desc,
2549 const u8 *ie, size_t ie_len,
2550 u8 bands_used, u32 *rate_masks,
2551 struct cfg80211_chan_def *chandef,
2552 u32 flags);
2553struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2554 const u8 *src, const u8 *dst,
2555 u32 ratemask,
2556 struct ieee80211_channel *chan,
2557 const u8 *ssid, size_t ssid_len,
2558 const u8 *ie, size_t ie_len,
2559 u32 flags);
2560u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2561 struct ieee802_11_elems *elems,
2562 enum nl80211_band band, u32 *basic_rates);
2563int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2564 struct ieee80211_link_data *link,
2565 enum ieee80211_smps_mode smps_mode);
2566void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2567 struct ieee80211_link_data *link);
2568void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2569 int link_id);
2570
2571size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2572u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2573 u16 cap);
2574u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2575 const struct cfg80211_chan_def *chandef,
2576 u16 prot_mode, bool rifs_mode);
2577void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2578 const struct cfg80211_chan_def *chandef);
2579u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2580 u32 cap);
2581u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2582 const struct cfg80211_chan_def *chandef);
2583u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata);
2584u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef);
2585u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef,
2586 const struct ieee80211_sta_eht_cap *eht_cap);
2587int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2588 const struct ieee80211_supported_band *sband,
2589 const u8 *srates, int srates_len, u32 *rates);
2590u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2591void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2592 struct ieee80211_sta_s1g_cap *caps,
2593 struct sk_buff *skb);
2594void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2595 struct sk_buff *skb);
2596
2597/* element building in SKBs */
2598int ieee80211_put_srates_elem(struct sk_buff *skb,
2599 const struct ieee80211_supported_band *sband,
2600 u32 basic_rates, u32 rate_flags, u32 masked_rates,
2601 u8 element_id);
2602int ieee80211_put_he_cap(struct sk_buff *skb,
2603 struct ieee80211_sub_if_data *sdata,
2604 const struct ieee80211_supported_band *sband,
2605 const struct ieee80211_conn_settings *conn);
2606int ieee80211_put_he_6ghz_cap(struct sk_buff *skb,
2607 struct ieee80211_sub_if_data *sdata,
2608 enum ieee80211_smps_mode smps_mode);
2609int ieee80211_put_eht_cap(struct sk_buff *skb,
2610 struct ieee80211_sub_if_data *sdata,
2611 const struct ieee80211_supported_band *sband,
2612 const struct ieee80211_conn_settings *conn);
2613
2614/* channel management */
2615bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2616 struct cfg80211_chan_def *chandef);
2617bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2618 const struct ieee80211_vht_operation *oper,
2619 const struct ieee80211_ht_operation *htop,
2620 struct cfg80211_chan_def *chandef);
2621void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info,
2622 struct cfg80211_chan_def *chandef);
2623bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local,
2624 const struct ieee80211_he_operation *he_oper,
2625 const struct ieee80211_eht_operation *eht_oper,
2626 struct cfg80211_chan_def *chandef);
2627bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2628 struct cfg80211_chan_def *chandef);
2629void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef,
2630 struct ieee80211_conn_settings *conn);
2631static inline void
2632ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq,
2633 struct ieee80211_conn_settings *conn)
2634{
2635 ieee80211_chandef_downgrade(&chanreq->oper, conn);
2636 if (WARN_ON(!conn))
2637 return;
2638 if (conn->mode < IEEE80211_CONN_MODE_EHT)
2639 chanreq->ap.chan = NULL;
2640}
2641
2642bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a,
2643 const struct ieee80211_chan_req *b);
2644
2645int __must_check
2646_ieee80211_link_use_channel(struct ieee80211_link_data *link,
2647 const struct ieee80211_chan_req *req,
2648 enum ieee80211_chanctx_mode mode,
2649 bool assign_on_failure);
2650
2651static inline int __must_check
2652ieee80211_link_use_channel(struct ieee80211_link_data *link,
2653 const struct ieee80211_chan_req *req,
2654 enum ieee80211_chanctx_mode mode)
2655{
2656 return _ieee80211_link_use_channel(link, req, mode, false);
2657}
2658
2659int __must_check
2660ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2661 const struct ieee80211_chan_req *req,
2662 enum ieee80211_chanctx_mode mode,
2663 bool radar_required);
2664int __must_check
2665ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2666int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2667
2668int __must_check
2669ieee80211_link_change_chanreq(struct ieee80211_link_data *link,
2670 const struct ieee80211_chan_req *req,
2671 u64 *changed);
2672void __ieee80211_link_release_channel(struct ieee80211_link_data *link,
2673 bool skip_idle_recalc);
2674void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2675void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2676void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2677 bool clear);
2678int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2679 struct ieee80211_chanctx *ctx);
2680
2681void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2682 struct ieee80211_chanctx *chanctx);
2683void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2684 struct ieee80211_chanctx *ctx,
2685 struct ieee80211_link_data *rsvd_for,
2686 bool check_reserved);
2687bool ieee80211_is_radar_required(struct ieee80211_local *local);
2688
2689void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work);
2690void ieee80211_dfs_cac_cancel(struct ieee80211_local *local,
2691 struct ieee80211_chanctx *chanctx);
2692void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy,
2693 struct wiphy_work *work);
2694int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2695 struct cfg80211_csa_settings *csa_settings);
2696
2697void ieee80211_recalc_dtim(struct ieee80211_local *local,
2698 struct ieee80211_sub_if_data *sdata);
2699int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2700 const struct cfg80211_chan_def *chandef,
2701 enum ieee80211_chanctx_mode chanmode,
2702 u8 radar_detect, int radio_idx);
2703int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx);
2704u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev);
2705void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2706 struct ieee80211_chanctx *ctx);
2707
2708/* TDLS */
2709int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2710 const u8 *peer, int link_id,
2711 u8 action_code, u8 dialog_token, u16 status_code,
2712 u32 peer_capability, bool initiator,
2713 const u8 *extra_ies, size_t extra_ies_len);
2714int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2715 const u8 *peer, enum nl80211_tdls_operation oper);
2716void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk);
2717int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2718 const u8 *addr, u8 oper_class,
2719 struct cfg80211_chan_def *chandef);
2720void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2721 struct net_device *dev,
2722 const u8 *addr);
2723void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link);
2724void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2725 const u8 *peer, u16 reason);
2726void
2727ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2728 struct sk_buff *skb);
2729
2730
2731const char *ieee80211_get_reason_code_string(u16 reason_code);
2732u16 ieee80211_encode_usf(int val);
2733u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2734 enum nl80211_iftype type);
2735
2736extern const struct ethtool_ops ieee80211_ethtool_ops;
2737
2738u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2739 struct ieee80211_vif *vif,
2740 struct ieee80211_sta *pubsta,
2741 int len, bool ampdu);
2742#ifdef CONFIG_MAC80211_NOINLINE
2743#define debug_noinline noinline
2744#else
2745#define debug_noinline
2746#endif
2747
2748void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2749void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2750
2751u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata);
2752
2753void
2754ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2755 struct ieee80211_supported_band *sband,
2756 const u8 *he_cap_ie, u8 he_cap_len,
2757 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2758 u8 eht_cap_len,
2759 struct link_sta_info *link_sta);
2760void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata,
2761 struct ieee80211_mgmt *mgmt, size_t len);
2762void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata,
2763 struct ieee80211_mgmt *mgmt, size_t len);
2764int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata,
2765 struct cfg80211_ttlm_params *params);
2766
2767void ieee80211_check_wbrf_support(struct ieee80211_local *local);
2768void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2769void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2770
2771#if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST)
2772#define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym)
2773#define VISIBLE_IF_MAC80211_KUNIT
2774ieee80211_rx_result
2775ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx);
2776int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap,
2777 u8 n_partial_subchans);
2778void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd,
2779 const struct cfg80211_chan_def *ap,
2780 const struct cfg80211_chan_def *used);
2781#else
2782#define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym)
2783#define VISIBLE_IF_MAC80211_KUNIT static
2784#endif
2785
2786#endif /* IEEE80211_I_H */