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) 2018-2025 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
39 extern const struct cfg80211_ops mac80211_config_ops;
40
41 struct ieee80211_local;
42 struct 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
83 extern 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
89 enum 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
97 static inline bool
ieee80211_sta_keep_active(struct sta_info * sta,u8 ac)98 ieee80211_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
106 struct 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 */
143 enum 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 */
159 enum 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
165 typedef 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
173 struct 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 */
194 enum 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_BEACON_REPORTED: This frame was already reported
204 * to cfg80211_report_obss_beacon().
205 *
206 * These flags are used across handling multiple interfaces
207 * for a single frame.
208 */
209 enum ieee80211_rx_flags {
210 IEEE80211_RX_BEACON_REPORTED = BIT(0),
211 };
212
213 struct ieee80211_rx_data {
214 struct list_head *list;
215 struct sk_buff *skb;
216 struct ieee80211_local *local;
217 struct ieee80211_sub_if_data *sdata;
218 struct ieee80211_link_data *link;
219 struct sta_info *sta;
220 struct link_sta_info *link_sta;
221 struct ieee80211_key *key;
222
223 unsigned int flags;
224
225 /*
226 * Index into sequence numbers array, 0..16
227 * since the last (16) is used for non-QoS,
228 * will be 16 on non-QoS frames.
229 */
230 int seqno_idx;
231
232 /*
233 * Index into the security IV/PN arrays, 0..16
234 * since the last (16) is used for CCMP-encrypted
235 * management frames, will be set to 16 on mgmt
236 * frames and 0 on non-QoS frames.
237 */
238 int security_idx;
239
240 int link_id;
241
242 union {
243 struct {
244 u32 iv32;
245 u16 iv16;
246 } tkip;
247 struct {
248 u8 pn[IEEE80211_CCMP_PN_LEN];
249 } ccm_gcm;
250 };
251 };
252
253 struct ieee80211_csa_settings {
254 const u16 *counter_offsets_beacon;
255 const u16 *counter_offsets_presp;
256
257 int n_counter_offsets_beacon;
258 int n_counter_offsets_presp;
259
260 u8 count;
261 };
262
263 struct ieee80211_color_change_settings {
264 u16 counter_offset_beacon;
265 u16 counter_offset_presp;
266 u8 count;
267 };
268
269 struct beacon_data {
270 u8 *head, *tail;
271 int head_len, tail_len;
272 struct ieee80211_meshconf_ie *meshconf;
273 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
274 u8 cntdwn_current_counter;
275 struct cfg80211_mbssid_elems *mbssid_ies;
276 struct cfg80211_rnr_elems *rnr_ies;
277 struct rcu_head rcu_head;
278 };
279
280 struct probe_resp {
281 struct rcu_head rcu_head;
282 int len;
283 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
284 u8 data[];
285 };
286
287 struct fils_discovery_data {
288 struct rcu_head rcu_head;
289 int len;
290 u8 data[];
291 };
292
293 struct unsol_bcast_probe_resp_data {
294 struct rcu_head rcu_head;
295 int len;
296 u8 data[];
297 };
298
299 struct ps_data {
300 /* yes, this looks ugly, but guarantees that we can later use
301 * bitmap_empty :)
302 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
303 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
304 __aligned(__alignof__(unsigned long));
305 struct sk_buff_head bc_buf;
306 atomic_t num_sta_ps; /* number of stations in PS mode */
307 int dtim_count;
308 bool dtim_bc_mc;
309 };
310
311 struct ieee80211_if_ap {
312 struct list_head vlans; /* write-protected with RTNL and local->mtx */
313
314 struct ps_data ps;
315 atomic_t num_mcast_sta; /* number of stations receiving multicast */
316
317 bool multicast_to_unicast;
318 bool active;
319 };
320
321 struct ieee80211_if_vlan {
322 struct list_head list; /* write-protected with RTNL and local->mtx */
323
324 /* used for all tx if the VLAN is configured to 4-addr mode */
325 struct sta_info __rcu *sta;
326 atomic_t num_mcast_sta; /* number of stations receiving multicast */
327 };
328
329 struct mesh_stats {
330 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
331 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
332 __u32 fwded_frames; /* Mesh total forwarded frames */
333 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
334 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
335 };
336
337 #define PREQ_Q_F_START 0x1
338 #define PREQ_Q_F_REFRESH 0x2
339 struct mesh_preq_queue {
340 struct list_head list;
341 u8 dst[ETH_ALEN];
342 u8 flags;
343 };
344
345 struct ieee80211_roc_work {
346 struct list_head list;
347
348 struct ieee80211_sub_if_data *sdata;
349
350 struct ieee80211_channel *chan;
351
352 bool started, abort, hw_begun, notified;
353 bool on_channel;
354
355 unsigned long start_time;
356
357 u32 duration, req_duration;
358 struct sk_buff *frame;
359 u64 cookie, mgmt_tx_cookie;
360 enum ieee80211_roc_type type;
361 };
362
363 /* flags used in struct ieee80211_if_managed.flags */
364 enum ieee80211_sta_flags {
365 IEEE80211_STA_CONNECTION_POLL = BIT(1),
366 IEEE80211_STA_CONTROL_PORT = BIT(2),
367 IEEE80211_STA_MFP_ENABLED = BIT(6),
368 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
369 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
370 IEEE80211_STA_ENABLE_RRM = BIT(15),
371 };
372
373 enum ieee80211_conn_mode {
374 IEEE80211_CONN_MODE_S1G,
375 IEEE80211_CONN_MODE_LEGACY,
376 IEEE80211_CONN_MODE_HT,
377 IEEE80211_CONN_MODE_VHT,
378 IEEE80211_CONN_MODE_HE,
379 IEEE80211_CONN_MODE_EHT,
380 };
381
382 #define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_EHT
383
384 enum ieee80211_conn_bw_limit {
385 IEEE80211_CONN_BW_LIMIT_20,
386 IEEE80211_CONN_BW_LIMIT_40,
387 IEEE80211_CONN_BW_LIMIT_80,
388 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */
389 IEEE80211_CONN_BW_LIMIT_320,
390 };
391
392 struct ieee80211_conn_settings {
393 enum ieee80211_conn_mode mode;
394 enum ieee80211_conn_bw_limit bw_limit;
395 };
396
397 extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited;
398
399 struct ieee80211_mgd_auth_data {
400 struct cfg80211_bss *bss;
401 unsigned long timeout;
402 int tries;
403 u16 algorithm, expected_transaction;
404
405 unsigned long userspace_selectors[BITS_TO_LONGS(128)];
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
421 struct 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 s8 assoc_link_id;
462
463 __le16 ext_mld_capa_ops;
464
465 u8 fils_nonces[2 * FILS_NONCE_LEN];
466 u8 fils_kek[FILS_MAX_KEK_LEN];
467 size_t fils_kek_len;
468
469 size_t ie_len;
470 u8 *ie_pos; /* used to fill ie[] with link[].elems */
471 u8 ie[];
472 };
473
474 struct ieee80211_sta_tx_tspec {
475 /* timestamp of the first packet in the time slice */
476 unsigned long time_slice_start;
477
478 u32 admitted_time; /* in usecs, unlike over the air */
479 u8 tsid;
480 s8 up; /* signed to be able to invalidate with -1 during teardown */
481
482 /* consumed TX time in microseconds in the time slice */
483 u32 consumed_tx_time;
484 enum {
485 TX_TSPEC_ACTION_NONE = 0,
486 TX_TSPEC_ACTION_DOWNGRADE,
487 TX_TSPEC_ACTION_STOP_DOWNGRADE,
488 } action;
489 bool downgraded;
490 };
491
492 /* Advertised TID-to-link mapping info */
493 struct ieee80211_adv_ttlm_info {
494 /* time in TUs at which the new mapping is established, or 0 if there is
495 * no planned advertised TID-to-link mapping
496 */
497 u16 switch_time;
498 u32 duration; /* duration of the planned T2L map in TUs */
499 u16 map; /* map of usable links for all TIDs */
500 bool active; /* whether the advertised mapping is active or not */
501 };
502
503 DECLARE_EWMA(beacon_signal, 4, 4)
504
505 struct ieee80211_if_managed {
506 struct timer_list timer;
507 struct timer_list conn_mon_timer;
508 struct timer_list bcn_mon_timer;
509 struct wiphy_work monitor_work;
510 struct wiphy_work beacon_connection_loss_work;
511 struct wiphy_work csa_connection_drop_work;
512
513 unsigned long beacon_timeout;
514 unsigned long probe_timeout;
515 int probe_send_count;
516 bool nullfunc_failed;
517 u8 connection_loss:1,
518 driver_disconnect:1,
519 reconnect:1,
520 associated:1;
521
522 struct ieee80211_mgd_auth_data *auth_data;
523 struct ieee80211_mgd_assoc_data *assoc_data;
524
525 unsigned long userspace_selectors[BITS_TO_LONGS(128)];
526
527 bool powersave; /* powersave requested for this iface */
528 bool broken_ap; /* AP is broken -- turn off powersave */
529
530 unsigned int flags;
531
532 u16 mcast_seq_last;
533
534 bool status_acked;
535 bool status_received;
536 __le16 status_fc;
537
538 enum {
539 IEEE80211_MFP_DISABLED,
540 IEEE80211_MFP_OPTIONAL,
541 IEEE80211_MFP_REQUIRED
542 } mfp; /* management frame protection */
543
544 /*
545 * Bitmask of enabled u-apsd queues,
546 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
547 * to take effect.
548 */
549 unsigned int uapsd_queues;
550
551 /*
552 * Maximum number of buffered frames AP can deliver during a
553 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
554 * Needs a new association to take effect.
555 */
556 unsigned int uapsd_max_sp_len;
557
558 u8 use_4addr;
559
560 /*
561 * State variables for keeping track of RSSI of the AP currently
562 * connected to and informing driver when RSSI has gone
563 * below/above a certain threshold.
564 */
565 int rssi_min_thold, rssi_max_thold;
566
567 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
568 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
569 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
570 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
571 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
572 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
573
574 /* TDLS support */
575 u8 tdls_peer[ETH_ALEN] __aligned(2);
576 struct wiphy_delayed_work tdls_peer_del_work;
577 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
578 struct sk_buff *teardown_skb; /* A copy to send through the AP */
579 spinlock_t teardown_lock; /* To lock changing teardown_skb */
580 bool tdls_wider_bw_prohibited;
581
582 /* WMM-AC TSPEC support */
583 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
584 /* Use a separate work struct so that we can do something here
585 * while the sdata->work is flushing the queues, for example.
586 * otherwise, in scenarios where we hardly get any traffic out
587 * on the BE queue, but there's a lot of VO traffic, we might
588 * get stuck in a downgraded situation and flush takes forever.
589 */
590 struct wiphy_delayed_work tx_tspec_wk;
591
592 /* Information elements from the last transmitted (Re)Association
593 * Request frame.
594 */
595 u8 *assoc_req_ies;
596 size_t assoc_req_ies_len;
597
598 struct wiphy_delayed_work ml_reconf_work;
599 u16 removed_links;
600
601 /* TID-to-link mapping support */
602 struct wiphy_delayed_work ttlm_work;
603 struct ieee80211_adv_ttlm_info ttlm_info;
604 struct wiphy_work teardown_ttlm_work;
605
606 /* dialog token enumerator for neg TTLM request */
607 u8 dialog_token_alloc;
608 struct wiphy_delayed_work neg_ttlm_timeout_work;
609
610 /* Locally initiated multi-link reconfiguration */
611 struct {
612 struct ieee80211_mgd_assoc_data *add_links_data;
613 struct wiphy_delayed_work wk;
614 u16 removed_links;
615 u16 added_links;
616 u8 dialog_token;
617 } reconf;
618
619 /* Support for epcs */
620 struct {
621 bool enabled;
622 u8 dialog_token;
623 } epcs;
624 };
625
626 struct ieee80211_if_ibss {
627 struct timer_list timer;
628 struct wiphy_work csa_connection_drop_work;
629
630 unsigned long last_scan_completed;
631
632 u32 basic_rates;
633
634 bool fixed_bssid;
635 bool fixed_channel;
636 bool privacy;
637
638 bool control_port;
639 bool userspace_handles_dfs;
640
641 u8 bssid[ETH_ALEN] __aligned(2);
642 u8 ssid[IEEE80211_MAX_SSID_LEN];
643 u8 ssid_len, ie_len;
644 u8 *ie;
645 struct cfg80211_chan_def chandef;
646
647 unsigned long ibss_join_req;
648 /* probe response/beacon for IBSS */
649 struct beacon_data __rcu *presp;
650
651 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
652 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
653
654 spinlock_t incomplete_lock;
655 struct list_head incomplete_stations;
656
657 enum {
658 IEEE80211_IBSS_MLME_SEARCH,
659 IEEE80211_IBSS_MLME_JOINED,
660 } state;
661 };
662
663 /**
664 * struct ieee80211_if_ocb - OCB mode state
665 *
666 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
667 * @wrkq_flags: OCB deferred task action
668 * @incomplete_lock: delayed STA insertion lock
669 * @incomplete_stations: list of STAs waiting for delayed insertion
670 * @joined: indication if the interface is connected to an OCB network
671 */
672 struct ieee80211_if_ocb {
673 struct timer_list housekeeping_timer;
674 unsigned long wrkq_flags;
675
676 spinlock_t incomplete_lock;
677 struct list_head incomplete_stations;
678
679 bool joined;
680 };
681
682 /**
683 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
684 *
685 * these declarations define the interface, which enables
686 * vendor-specific mesh synchronization
687 *
688 * @rx_bcn_presp: beacon/probe response was received
689 * @adjust_tsf: TSF adjustment method
690 */
691 struct ieee80211_mesh_sync_ops {
692 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
693 struct ieee80211_mgmt *mgmt, unsigned int len,
694 const struct ieee80211_meshconf_ie *mesh_cfg,
695 struct ieee80211_rx_status *rx_status);
696
697 /* should be called with beacon_data under RCU read lock */
698 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
699 struct beacon_data *beacon);
700 /* add other framework functions here */
701 };
702
703 struct mesh_csa_settings {
704 struct rcu_head rcu_head;
705 struct cfg80211_csa_settings settings;
706 };
707
708 /**
709 * struct mesh_table - mesh hash table
710 *
711 * @known_gates: list of known mesh gates and their mpaths by the station. The
712 * gate's mpath may or may not be resolved and active.
713 * @gates_lock: protects updates to known_gates
714 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
715 * @walk_head: linked list containing all mesh_path objects
716 * @walk_lock: lock protecting walk_head
717 * @entries: number of entries in the table
718 */
719 struct mesh_table {
720 struct hlist_head known_gates;
721 spinlock_t gates_lock;
722 struct rhashtable rhead;
723 struct hlist_head walk_head;
724 spinlock_t walk_lock;
725 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
726 };
727
728 /**
729 * struct mesh_tx_cache - mesh fast xmit header cache
730 *
731 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key
732 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects
733 * @walk_lock: lock protecting walk_head and rht
734 */
735 struct mesh_tx_cache {
736 struct rhashtable rht;
737 struct hlist_head walk_head;
738 spinlock_t walk_lock;
739 };
740
741 struct ieee80211_if_mesh {
742 struct timer_list housekeeping_timer;
743 struct timer_list mesh_path_timer;
744 struct timer_list mesh_path_root_timer;
745
746 unsigned long wrkq_flags;
747 unsigned long mbss_changed[64 / BITS_PER_LONG];
748
749 bool userspace_handles_dfs;
750
751 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
752 size_t mesh_id_len;
753 /* Active Path Selection Protocol Identifier */
754 u8 mesh_pp_id;
755 /* Active Path Selection Metric Identifier */
756 u8 mesh_pm_id;
757 /* Congestion Control Mode Identifier */
758 u8 mesh_cc_id;
759 /* Synchronization Protocol Identifier */
760 u8 mesh_sp_id;
761 /* Authentication Protocol Identifier */
762 u8 mesh_auth_id;
763 /* Local mesh Sequence Number */
764 u32 sn;
765 /* Last used PREQ ID */
766 u32 preq_id;
767 atomic_t mpaths;
768 /* Timestamp of last SN update */
769 unsigned long last_sn_update;
770 /* Time when it's ok to send next PERR */
771 unsigned long next_perr;
772 /* Timestamp of last PREQ sent */
773 unsigned long last_preq;
774 struct mesh_rmc *rmc;
775 spinlock_t mesh_preq_queue_lock;
776 struct mesh_preq_queue preq_queue;
777 int preq_queue_len;
778 struct mesh_stats mshstats;
779 struct mesh_config mshcfg;
780 atomic_t estab_plinks;
781 atomic_t mesh_seqnum;
782 bool accepting_plinks;
783 int num_gates;
784 struct beacon_data __rcu *beacon;
785 const u8 *ie;
786 u8 ie_len;
787 enum {
788 IEEE80211_MESH_SEC_NONE = 0x0,
789 IEEE80211_MESH_SEC_AUTHED = 0x1,
790 IEEE80211_MESH_SEC_SECURED = 0x2,
791 } security;
792 bool user_mpm;
793 /* Extensible Synchronization Framework */
794 const struct ieee80211_mesh_sync_ops *sync_ops;
795 s64 sync_offset_clockdrift_max;
796 spinlock_t sync_offset_lock;
797 /* mesh power save */
798 enum nl80211_mesh_power_mode nonpeer_pm;
799 int ps_peers_light_sleep;
800 int ps_peers_deep_sleep;
801 struct ps_data ps;
802 /* Channel Switching Support */
803 struct mesh_csa_settings __rcu *csa;
804 enum {
805 IEEE80211_MESH_CSA_ROLE_NONE,
806 IEEE80211_MESH_CSA_ROLE_INIT,
807 IEEE80211_MESH_CSA_ROLE_REPEATER,
808 } csa_role;
809 u8 chsw_ttl;
810 u16 pre_value;
811
812 /* offset from skb->data while building IE */
813 int meshconf_offset;
814
815 struct mesh_table mesh_paths;
816 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
817 int mesh_paths_generation;
818 int mpp_paths_generation;
819 struct mesh_tx_cache tx_cache;
820 };
821
822 #ifdef CONFIG_MAC80211_MESH
823 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
824 do { (msh)->mshstats.name++; } while (0)
825 #else
826 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
827 do { } while (0)
828 #endif
829
830 /**
831 * enum ieee80211_sub_if_data_flags - virtual interface flags
832 *
833 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
834 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
835 * associated stations and deliver multicast frames both
836 * back to wireless media and to the local net stack.
837 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
838 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
839 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
840 * recovery
841 */
842 enum ieee80211_sub_if_data_flags {
843 IEEE80211_SDATA_ALLMULTI = BIT(0),
844 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
845 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
846 IEEE80211_SDATA_IN_DRIVER = BIT(5),
847 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
848 };
849
850 /**
851 * enum ieee80211_sdata_state_bits - virtual interface state bits
852 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
853 * mirrors netif_running() but is separate for interface type
854 * change handling while the interface is up
855 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
856 * mode, so queues are stopped
857 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
858 * to offchannel, reset when offchannel returns
859 */
860 enum ieee80211_sdata_state_bits {
861 SDATA_STATE_RUNNING,
862 SDATA_STATE_OFFCHANNEL,
863 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
864 };
865
866 /**
867 * enum ieee80211_chanctx_mode - channel context configuration mode
868 *
869 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
870 * multiple interfaces
871 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
872 * only by a single interface. This can be used for example for
873 * non-fixed channel IBSS.
874 */
875 enum ieee80211_chanctx_mode {
876 IEEE80211_CHANCTX_SHARED,
877 IEEE80211_CHANCTX_EXCLUSIVE
878 };
879
880 /**
881 * enum ieee80211_chanctx_replace_state - channel context replacement state
882 *
883 * This is used for channel context in-place reservations that require channel
884 * context switch/swap.
885 *
886 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
887 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
888 * by a (not yet registered) channel context pointed by %replace_ctx.
889 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
890 * replaces an existing channel context pointed to by %replace_ctx.
891 */
892 enum ieee80211_chanctx_replace_state {
893 IEEE80211_CHANCTX_REPLACE_NONE,
894 IEEE80211_CHANCTX_WILL_BE_REPLACED,
895 IEEE80211_CHANCTX_REPLACES_OTHER,
896 };
897
898 struct ieee80211_chanctx {
899 struct list_head list;
900 struct rcu_head rcu_head;
901
902 struct list_head assigned_links;
903 struct list_head reserved_links;
904
905 enum ieee80211_chanctx_replace_state replace_state;
906 struct ieee80211_chanctx *replace_ctx;
907
908 enum ieee80211_chanctx_mode mode;
909 bool driver_present;
910
911 /* temporary data for search algorithm etc. */
912 struct ieee80211_chan_req req;
913
914 bool radar_detected;
915
916 /* MUST be last - ends in a flexible-array member. */
917 struct ieee80211_chanctx_conf conf;
918 };
919
920 struct mac80211_qos_map {
921 struct cfg80211_qos_map qos_map;
922 struct rcu_head rcu_head;
923 };
924
925 enum txq_info_flags {
926 IEEE80211_TXQ_STOP,
927 IEEE80211_TXQ_AMPDU,
928 IEEE80211_TXQ_NO_AMSDU,
929 IEEE80211_TXQ_DIRTY,
930 };
931
932 /**
933 * struct txq_info - per tid queue
934 *
935 * @tin: contains packets split into multiple flows
936 * @def_cvars: codel vars for the @tin's default_flow
937 * @cstats: code statistics for this queue
938 * @frags: used to keep fragments created after dequeue
939 * @schedule_order: used with ieee80211_local->active_txqs
940 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
941 * @flags: TXQ flags from &enum txq_info_flags
942 * @txq: the driver visible part
943 */
944 struct txq_info {
945 struct fq_tin tin;
946 struct codel_vars def_cvars;
947 struct codel_stats cstats;
948
949 u16 schedule_round;
950 struct list_head schedule_order;
951
952 struct sk_buff_head frags;
953
954 unsigned long flags;
955
956 /* keep last! */
957 struct ieee80211_txq txq;
958 };
959
960 struct ieee80211_if_mntr {
961 u32 flags;
962 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
963
964 struct list_head list;
965 };
966
967 /**
968 * struct ieee80211_if_nan - NAN state
969 *
970 * @conf: current NAN configuration
971 * @func_lock: lock for @func_inst_ids
972 * @function_inst_ids: a bitmap of available instance_id's
973 */
974 struct ieee80211_if_nan {
975 struct cfg80211_nan_conf conf;
976
977 /* protects function_inst_ids */
978 spinlock_t func_lock;
979 struct idr function_inst_ids;
980 };
981
982 struct ieee80211_link_data_managed {
983 u8 bssid[ETH_ALEN] __aligned(2);
984
985 u8 dtim_period;
986 enum ieee80211_smps_mode req_smps, /* requested smps mode */
987 driver_smps_mode; /* smps mode request */
988
989 struct ieee80211_conn_settings conn;
990
991 s16 p2p_noa_index;
992
993 bool tdls_chan_switch_prohibited;
994
995 bool have_beacon;
996 bool tracking_signal_avg;
997 bool disable_wmm_tracking;
998 bool operating_11g_mode;
999
1000 struct {
1001 struct wiphy_delayed_work switch_work;
1002 struct cfg80211_chan_def ap_chandef;
1003 struct ieee80211_parsed_tpe tpe;
1004 unsigned long time;
1005 bool waiting_bcn;
1006 bool ignored_same_chan;
1007 bool blocked_tx;
1008 } csa;
1009
1010 struct wiphy_work request_smps_work;
1011 /* used to reconfigure hardware SM PS */
1012 struct wiphy_work recalc_smps;
1013
1014 bool beacon_crc_valid;
1015 u32 beacon_crc;
1016 struct ewma_beacon_signal ave_beacon_signal;
1017 int last_ave_beacon_signal;
1018
1019 /*
1020 * Number of Beacon frames used in ave_beacon_signal. This can be used
1021 * to avoid generating less reliable cqm events that would be based
1022 * only on couple of received frames.
1023 */
1024 unsigned int count_beacon_signal;
1025
1026 /* Number of times beacon loss was invoked. */
1027 unsigned int beacon_loss_count;
1028
1029 /*
1030 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
1031 * that triggered a cqm event. 0 indicates that no event has been
1032 * generated for the current association.
1033 */
1034 int last_cqm_event_signal;
1035
1036 int wmm_last_param_set;
1037 int mu_edca_last_param_set;
1038 };
1039
1040 struct ieee80211_link_data_ap {
1041 struct beacon_data __rcu *beacon;
1042 struct probe_resp __rcu *probe_resp;
1043 struct fils_discovery_data __rcu *fils_discovery;
1044 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
1045
1046 /* to be used after channel switch. */
1047 struct cfg80211_beacon_data *next_beacon;
1048 };
1049
1050 struct ieee80211_link_data {
1051 struct ieee80211_sub_if_data *sdata;
1052 unsigned int link_id;
1053
1054 struct list_head assigned_chanctx_list; /* protected by wiphy mutex */
1055 struct list_head reserved_chanctx_list; /* protected by wiphy mutex */
1056
1057 /* multicast keys only */
1058 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
1059 NUM_DEFAULT_MGMT_KEYS +
1060 NUM_DEFAULT_BEACON_KEYS];
1061 struct ieee80211_key __rcu *default_multicast_key;
1062 struct ieee80211_key __rcu *default_mgmt_key;
1063 struct ieee80211_key __rcu *default_beacon_key;
1064
1065
1066 bool operating_11g_mode;
1067
1068 struct {
1069 struct wiphy_work finalize_work;
1070 struct ieee80211_chan_req chanreq;
1071 } csa;
1072
1073 struct wiphy_work color_change_finalize_work;
1074 struct wiphy_delayed_work color_collision_detect_work;
1075 u64 color_bitmap;
1076
1077 /* context reservation -- protected with wiphy mutex */
1078 struct ieee80211_chanctx *reserved_chanctx;
1079 struct ieee80211_chan_req reserved;
1080 bool reserved_radar_required;
1081 bool reserved_ready;
1082
1083 u8 needed_rx_chains;
1084 enum ieee80211_smps_mode smps_mode;
1085
1086 int user_power_level; /* in dBm */
1087 int ap_power_level; /* in dBm */
1088
1089 bool radar_required;
1090 struct wiphy_delayed_work dfs_cac_timer_work;
1091
1092 union {
1093 struct ieee80211_link_data_managed mgd;
1094 struct ieee80211_link_data_ap ap;
1095 } u;
1096
1097 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
1098
1099 struct ieee80211_bss_conf *conf;
1100
1101 #ifdef CONFIG_MAC80211_DEBUGFS
1102 struct dentry *debugfs_dir;
1103 #endif
1104 };
1105
1106 struct ieee80211_sub_if_data {
1107 struct list_head list;
1108
1109 struct wireless_dev wdev;
1110
1111 /* keys */
1112 struct list_head key_list;
1113
1114 /* count for keys needing tailroom space allocation */
1115 int crypto_tx_tailroom_needed_cnt;
1116 int crypto_tx_tailroom_pending_dec;
1117 struct wiphy_delayed_work dec_tailroom_needed_wk;
1118
1119 struct net_device *dev;
1120 struct ieee80211_local *local;
1121
1122 unsigned int flags;
1123
1124 unsigned long state;
1125
1126 char name[IFNAMSIZ];
1127
1128 struct ieee80211_fragment_cache frags;
1129
1130 /* TID bitmap for NoAck policy */
1131 u16 noack_map;
1132
1133 /* bit field of ACM bits (BIT(802.1D tag)) */
1134 u8 wmm_acm;
1135
1136 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
1137 struct ieee80211_key __rcu *default_unicast_key;
1138
1139 u16 sequence_number;
1140 u16 mld_mcast_seq;
1141 __be16 control_port_protocol;
1142 bool control_port_no_encrypt;
1143 bool control_port_no_preauth;
1144 bool control_port_over_nl80211;
1145
1146 atomic_t num_tx_queued;
1147 struct mac80211_qos_map __rcu *qos_map;
1148
1149 struct wiphy_work work;
1150 struct sk_buff_head skb_queue;
1151 struct sk_buff_head status_queue;
1152
1153 /*
1154 * AP this belongs to: self in AP mode and
1155 * corresponding AP in VLAN mode, NULL for
1156 * all others (might be needed later in IBSS)
1157 */
1158 struct ieee80211_if_ap *bss;
1159
1160 /* bitmap of allowed (non-MCS) rate indexes for rate control */
1161 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1162
1163 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1164 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1165
1166 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1167 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1168
1169 /* Beacon frame (non-MCS) rate (as a bitmap) */
1170 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1171 bool beacon_rate_set;
1172
1173 union {
1174 struct ieee80211_if_ap ap;
1175 struct ieee80211_if_vlan vlan;
1176 struct ieee80211_if_managed mgd;
1177 struct ieee80211_if_ibss ibss;
1178 struct ieee80211_if_mesh mesh;
1179 struct ieee80211_if_ocb ocb;
1180 struct ieee80211_if_mntr mntr;
1181 struct ieee80211_if_nan nan;
1182 } u;
1183
1184 struct ieee80211_link_data deflink;
1185 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
1186
1187 /* for ieee80211_set_active_links_async() */
1188 struct wiphy_work activate_links_work;
1189 u16 desired_active_links;
1190
1191 u16 restart_active_links;
1192
1193 #ifdef CONFIG_MAC80211_DEBUGFS
1194 struct {
1195 struct dentry *subdir_stations;
1196 struct dentry *default_unicast_key;
1197 struct dentry *default_multicast_key;
1198 struct dentry *default_mgmt_key;
1199 struct dentry *default_beacon_key;
1200 } debugfs;
1201 #endif
1202
1203 /* must be last, dynamically sized area in this! */
1204 struct ieee80211_vif vif;
1205 };
1206
1207 static inline
vif_to_sdata(struct ieee80211_vif * p)1208 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1209 {
1210 return container_of(p, struct ieee80211_sub_if_data, vif);
1211 }
1212
1213 #define sdata_dereference(p, sdata) \
1214 wiphy_dereference(sdata->local->hw.wiphy, p)
1215
1216 #define for_each_sdata_link(_local, _link) \
1217 /* outer loop just to define the variables ... */ \
1218 for (struct ieee80211_sub_if_data *___sdata = NULL; \
1219 !___sdata; \
1220 ___sdata = (void *)~0 /* always stop */) \
1221 list_for_each_entry(___sdata, &(_local)->interfaces, list) \
1222 if (ieee80211_sdata_running(___sdata)) \
1223 for (int ___link_id = 0; \
1224 ___link_id < ARRAY_SIZE(___sdata->link); \
1225 ___link_id++) \
1226 if ((_link = wiphy_dereference((_local)->hw.wiphy, \
1227 ___sdata->link[___link_id])))
1228
1229 static inline int
ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems * elems,struct cfg80211_rnr_elems * rnr_elems,u8 i)1230 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
1231 struct cfg80211_rnr_elems *rnr_elems,
1232 u8 i)
1233 {
1234 int len = 0;
1235
1236 if (!elems || !elems->cnt || i > elems->cnt)
1237 return 0;
1238
1239 if (i < elems->cnt) {
1240 len = elems->elem[i].len;
1241 if (rnr_elems) {
1242 len += rnr_elems->elem[i].len;
1243 for (i = elems->cnt; i < rnr_elems->cnt; i++)
1244 len += rnr_elems->elem[i].len;
1245 }
1246 return len;
1247 }
1248
1249 /* i == elems->cnt, calculate total length of all MBSSID elements */
1250 for (i = 0; i < elems->cnt; i++)
1251 len += elems->elem[i].len;
1252
1253 if (rnr_elems) {
1254 for (i = 0; i < rnr_elems->cnt; i++)
1255 len += rnr_elems->elem[i].len;
1256 }
1257
1258 return len;
1259 }
1260
1261 enum {
1262 IEEE80211_RX_MSG = 1,
1263 IEEE80211_TX_STATUS_MSG = 2,
1264 };
1265
1266 enum queue_stop_reason {
1267 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1268 IEEE80211_QUEUE_STOP_REASON_PS,
1269 IEEE80211_QUEUE_STOP_REASON_CSA,
1270 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1271 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1272 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1273 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1274 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1275 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1276 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1277 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1278
1279 IEEE80211_QUEUE_STOP_REASONS,
1280 };
1281
1282 #ifdef CONFIG_MAC80211_LEDS
1283 struct tpt_led_trigger {
1284 char name[32];
1285 const struct ieee80211_tpt_blink *blink_table;
1286 unsigned int blink_table_len;
1287 struct timer_list timer;
1288 struct ieee80211_local *local;
1289 unsigned long prev_traffic;
1290 unsigned long tx_bytes, rx_bytes;
1291 unsigned int active, want;
1292 bool running;
1293 };
1294 #endif
1295
1296 /**
1297 * enum mac80211_scan_flags - currently active scan mode
1298 *
1299 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1300 * well be on the operating channel
1301 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1302 * determine if we are on the operating channel or not
1303 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1304 * channel. This should not interrupt normal traffic.
1305 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1306 * that the scan completed.
1307 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1308 * a scan complete for an aborted scan.
1309 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1310 * cancelled.
1311 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1312 * and could send a probe request after receiving a beacon.
1313 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1314 */
1315 enum mac80211_scan_flags {
1316 SCAN_SW_SCANNING,
1317 SCAN_HW_SCANNING,
1318 SCAN_ONCHANNEL_SCANNING,
1319 SCAN_COMPLETED,
1320 SCAN_ABORTED,
1321 SCAN_HW_CANCELLED,
1322 SCAN_BEACON_WAIT,
1323 SCAN_BEACON_DONE,
1324 };
1325
1326 /**
1327 * enum mac80211_scan_state - scan state machine states
1328 *
1329 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1330 * determines if we should keep on scanning or switch back to the
1331 * operating channel
1332 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1333 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1334 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1335 * send out data
1336 * @SCAN_RESUME: Resume the scan and scan the next channel
1337 * @SCAN_ABORT: Abort the scan and go back to operating channel
1338 */
1339 enum mac80211_scan_state {
1340 SCAN_DECISION,
1341 SCAN_SET_CHANNEL,
1342 SCAN_SEND_PROBE,
1343 SCAN_SUSPEND,
1344 SCAN_RESUME,
1345 SCAN_ABORT,
1346 };
1347
1348 DECLARE_STATIC_KEY_FALSE(aql_disable);
1349
1350 struct ieee80211_local {
1351 /* embed the driver visible part.
1352 * don't cast (use the static inlines below), but we keep
1353 * it first anyway so they become a no-op */
1354 struct ieee80211_hw hw;
1355
1356 struct fq fq;
1357 struct codel_vars *cvars;
1358 struct codel_params cparams;
1359
1360 /* protects active_txqs and txqi->schedule_order */
1361 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1362 struct list_head active_txqs[IEEE80211_NUM_ACS];
1363 u16 schedule_round[IEEE80211_NUM_ACS];
1364
1365 /* serializes ieee80211_handle_wake_tx_queue */
1366 spinlock_t handle_wake_tx_queue_lock;
1367
1368 u16 airtime_flags;
1369 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1370 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1371 u32 aql_threshold;
1372 atomic_t aql_total_pending_airtime;
1373 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
1374
1375 const struct ieee80211_ops *ops;
1376
1377 /*
1378 * private workqueue to mac80211. mac80211 makes this accessible
1379 * via ieee80211_queue_work()
1380 */
1381 struct workqueue_struct *workqueue;
1382
1383 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1384 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1385 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1386 spinlock_t queue_stop_reason_lock;
1387
1388 int open_count;
1389 int monitors, virt_monitors, tx_mntrs;
1390 /* number of interfaces with corresponding FIF_ flags */
1391 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1392 fif_probe_req;
1393 bool probe_req_reg;
1394 bool rx_mcast_action_reg;
1395 unsigned int filter_flags; /* FIF_* */
1396
1397 bool wiphy_ciphers_allocated;
1398
1399 struct cfg80211_chan_def dflt_chandef;
1400 bool emulate_chanctx;
1401
1402 /* protects the aggregated multicast list and filter calls */
1403 spinlock_t filter_lock;
1404
1405 /* used for uploading changed mc list */
1406 struct wiphy_work reconfig_filter;
1407
1408 /* aggregated multicast list */
1409 struct netdev_hw_addr_list mc_list;
1410
1411 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1412
1413 /*
1414 * suspended is true if we finished all the suspend _and_ we have
1415 * not yet come up from resume. This is to be used by mac80211
1416 * to ensure driver sanity during suspend and mac80211's own
1417 * sanity. It can eventually be used for WoW as well.
1418 */
1419 bool suspended;
1420
1421 /* suspending is true during the whole suspend process */
1422 bool suspending;
1423
1424 /*
1425 * Resuming is true while suspended, but when we're reprogramming the
1426 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1427 * again even though some other parts of the stack are still suspended
1428 * and we still drop received frames to avoid waking the stack.
1429 */
1430 bool resuming;
1431
1432 /*
1433 * quiescing is true during the suspend process _only_ to
1434 * ease timer cancelling etc.
1435 */
1436 bool quiescing;
1437
1438 /* device is started */
1439 bool started;
1440
1441 /* device is during a HW reconfig */
1442 bool in_reconfig;
1443
1444 /* reconfiguration failed ... suppress some warnings etc. */
1445 bool reconfig_failure;
1446
1447 /* wowlan is enabled -- don't reconfig on resume */
1448 bool wowlan;
1449
1450 struct wiphy_work radar_detected_work;
1451
1452 /* number of RX chains the hardware has */
1453 u8 rx_chains;
1454
1455 /* bitmap of which sbands were copied */
1456 u8 sband_allocated;
1457
1458 int tx_headroom; /* required headroom for hardware/radiotap */
1459
1460 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1461 * added to skb_queue will be processed, but frames in
1462 * skb_queue_unreliable may be dropped if the total length of these
1463 * queues increases over the limit. */
1464 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1465 struct tasklet_struct tasklet;
1466 struct sk_buff_head skb_queue;
1467 struct sk_buff_head skb_queue_unreliable;
1468
1469 spinlock_t rx_path_lock;
1470
1471 /* Station data */
1472 /*
1473 * The list, hash table and counter are protected
1474 * by the wiphy mutex, reads are done with RCU.
1475 */
1476 spinlock_t tim_lock;
1477 unsigned long num_sta;
1478 struct list_head sta_list;
1479 struct rhltable sta_hash;
1480 struct rhltable link_sta_hash;
1481 struct timer_list sta_cleanup;
1482 int sta_generation;
1483
1484 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1485 struct tasklet_struct tx_pending_tasklet;
1486 struct tasklet_struct wake_txqs_tasklet;
1487
1488 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1489
1490 /* number of interfaces with allmulti RX */
1491 atomic_t iff_allmultis;
1492
1493 struct rate_control_ref *rate_ctrl;
1494
1495 struct arc4_ctx wep_tx_ctx;
1496 struct arc4_ctx wep_rx_ctx;
1497 u32 wep_iv;
1498
1499 /* see iface.c */
1500 struct list_head interfaces;
1501 struct list_head mon_list; /* only that are IFF_UP */
1502 struct mutex iflist_mtx;
1503
1504 /* Scanning and BSS list */
1505 unsigned long scanning;
1506 struct cfg80211_ssid scan_ssid;
1507 struct cfg80211_scan_request *int_scan_req;
1508 struct cfg80211_scan_request __rcu *scan_req;
1509 struct ieee80211_scan_request *hw_scan_req;
1510 struct cfg80211_chan_def scan_chandef;
1511 enum nl80211_band hw_scan_band;
1512 int scan_channel_idx;
1513 int scan_ies_len;
1514 int hw_scan_ies_bufsize;
1515 struct cfg80211_scan_info scan_info;
1516
1517 struct wiphy_work sched_scan_stopped_work;
1518 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1519 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1520 u8 scan_addr[ETH_ALEN];
1521
1522 unsigned long leave_oper_channel_time;
1523 enum mac80211_scan_state next_scan_state;
1524 struct wiphy_delayed_work scan_work;
1525 struct ieee80211_sub_if_data __rcu *scan_sdata;
1526
1527 /* Temporary remain-on-channel for off-channel operations */
1528 struct ieee80211_channel *tmp_channel;
1529
1530 /* channel contexts */
1531 struct list_head chanctx_list;
1532
1533 #ifdef CONFIG_MAC80211_LEDS
1534 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1535 struct led_trigger tpt_led;
1536 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1537 atomic_t radio_led_active, tpt_led_active;
1538 struct tpt_led_trigger *tpt_led_trigger;
1539 #endif
1540
1541 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1542 /* SNMP counters */
1543 /* dot11CountersTable */
1544 u32 dot11TransmittedFragmentCount;
1545 u32 dot11MulticastTransmittedFrameCount;
1546 u32 dot11FailedCount;
1547 u32 dot11RetryCount;
1548 u32 dot11MultipleRetryCount;
1549 u32 dot11FrameDuplicateCount;
1550 u32 dot11ReceivedFragmentCount;
1551 u32 dot11MulticastReceivedFrameCount;
1552 u32 dot11TransmittedFrameCount;
1553
1554 /* TX/RX handler statistics */
1555 unsigned int tx_handlers_drop;
1556 unsigned int tx_handlers_queued;
1557 unsigned int tx_handlers_drop_wep;
1558 unsigned int tx_handlers_drop_not_assoc;
1559 unsigned int tx_handlers_drop_unauth_port;
1560 unsigned int rx_handlers_drop;
1561 unsigned int rx_handlers_queued;
1562 unsigned int rx_handlers_drop_nullfunc;
1563 unsigned int rx_handlers_drop_defrag;
1564 unsigned int tx_expand_skb_head;
1565 unsigned int tx_expand_skb_head_cloned;
1566 unsigned int rx_expand_skb_head_defrag;
1567 unsigned int rx_handlers_fragments;
1568 unsigned int tx_status_drop;
1569 #define I802_DEBUG_INC(c) (c)++
1570 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1571 #define I802_DEBUG_INC(c) do { } while (0)
1572 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1573
1574
1575 int total_ps_buffered; /* total number of all buffered unicast and
1576 * multicast packets for power saving stations
1577 */
1578
1579 bool pspolling;
1580 /*
1581 * PS can only be enabled when we have exactly one managed
1582 * interface (and monitors) in PS, this then points there.
1583 */
1584 struct ieee80211_sub_if_data *ps_sdata;
1585 struct wiphy_work dynamic_ps_enable_work;
1586 struct wiphy_work dynamic_ps_disable_work;
1587 struct timer_list dynamic_ps_timer;
1588 struct notifier_block ifa_notifier;
1589 struct notifier_block ifa6_notifier;
1590
1591 /*
1592 * The dynamic ps timeout configured from user space via WEXT -
1593 * this will override whatever chosen by mac80211 internally.
1594 */
1595 int dynamic_ps_forced_timeout;
1596
1597 int user_power_level; /* in dBm, for all interfaces */
1598
1599 struct work_struct restart_work;
1600
1601 #ifdef CONFIG_MAC80211_DEBUGFS
1602 struct local_debugfsdentries {
1603 struct dentry *rcdir;
1604 struct dentry *keys;
1605 } debugfs;
1606 bool force_tx_status;
1607 #endif
1608
1609 /*
1610 * Remain-on-channel support
1611 */
1612 struct wiphy_delayed_work roc_work;
1613 struct list_head roc_list;
1614 struct wiphy_work hw_roc_start, hw_roc_done;
1615 unsigned long hw_roc_start_time;
1616 u64 roc_cookie_counter;
1617
1618 struct idr ack_status_frames;
1619 spinlock_t ack_status_lock;
1620
1621 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1622
1623 /* virtual monitor interface */
1624 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1625 struct ieee80211_chan_req monitor_chanreq;
1626
1627 /* extended capabilities provided by mac80211 */
1628 u8 ext_capa[8];
1629
1630 bool wbrf_supported;
1631 };
1632
1633 static inline struct ieee80211_sub_if_data *
IEEE80211_DEV_TO_SUB_IF(const struct net_device * dev)1634 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1635 {
1636 return netdev_priv(dev);
1637 }
1638
1639 static inline struct ieee80211_sub_if_data *
IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev * wdev)1640 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1641 {
1642 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1643 }
1644
1645 static inline struct ieee80211_supported_band *
ieee80211_get_sband(struct ieee80211_sub_if_data * sdata)1646 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1647 {
1648 struct ieee80211_local *local = sdata->local;
1649 struct ieee80211_chanctx_conf *chanctx_conf;
1650 enum nl80211_band band;
1651
1652 WARN_ON(ieee80211_vif_is_mld(&sdata->vif));
1653
1654 rcu_read_lock();
1655 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1656
1657 if (!chanctx_conf) {
1658 rcu_read_unlock();
1659 return NULL;
1660 }
1661
1662 band = chanctx_conf->def.chan->band;
1663 rcu_read_unlock();
1664
1665 return local->hw.wiphy->bands[band];
1666 }
1667
1668 static inline struct ieee80211_supported_band *
ieee80211_get_link_sband(struct ieee80211_link_data * link)1669 ieee80211_get_link_sband(struct ieee80211_link_data *link)
1670 {
1671 struct ieee80211_local *local = link->sdata->local;
1672 struct ieee80211_chanctx_conf *chanctx_conf;
1673 enum nl80211_band band;
1674
1675 rcu_read_lock();
1676 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
1677 if (!chanctx_conf) {
1678 rcu_read_unlock();
1679 return NULL;
1680 }
1681
1682 band = chanctx_conf->def.chan->band;
1683 rcu_read_unlock();
1684
1685 return local->hw.wiphy->bands[band];
1686 }
1687
1688 /* this struct holds the value parsing from channel switch IE */
1689 struct ieee80211_csa_ie {
1690 struct ieee80211_chan_req chanreq;
1691 u8 mode;
1692 u8 count;
1693 u8 ttl;
1694 u16 pre_value;
1695 u16 reason_code;
1696 u32 max_switch_time;
1697 };
1698
1699 enum ieee80211_elems_parse_error {
1700 IEEE80211_PARSE_ERR_INVALID_END = BIT(0),
1701 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1),
1702 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2),
1703 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3),
1704 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4),
1705 };
1706
1707 /* Parsed Information Elements */
1708 struct ieee802_11_elems {
1709 const u8 *ie_start;
1710 size_t total_len;
1711 u32 crc;
1712
1713 /* pointers to IEs */
1714 const struct ieee80211_tdls_lnkie *lnk_id;
1715 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1716 const u8 *ext_capab;
1717 const u8 *ssid;
1718 const u8 *supp_rates;
1719 const u8 *ds_params;
1720 const struct ieee80211_tim_ie *tim;
1721 const u8 *rsn;
1722 const u8 *rsnx;
1723 const u8 *erp_info;
1724 const u8 *ext_supp_rates;
1725 const u8 *wmm_info;
1726 const u8 *wmm_param;
1727 const struct ieee80211_ht_cap *ht_cap_elem;
1728 const struct ieee80211_ht_operation *ht_operation;
1729 const struct ieee80211_vht_cap *vht_cap_elem;
1730 const struct ieee80211_vht_operation *vht_operation;
1731 const struct ieee80211_meshconf_ie *mesh_config;
1732 const u8 *he_cap;
1733 const struct ieee80211_he_operation *he_operation;
1734 const struct ieee80211_he_spr *he_spr;
1735 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1736 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1737 const u8 *uora_element;
1738 const u8 *mesh_id;
1739 const u8 *peering;
1740 const __le16 *awake_window;
1741 const u8 *preq;
1742 const u8 *prep;
1743 const u8 *perr;
1744 const struct ieee80211_rann_ie *rann;
1745 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1746 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1747 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1748 const u8 *max_channel_switch_time;
1749 const u8 *country_elem;
1750 const u8 *pwr_constr_elem;
1751 const u8 *cisco_dtpc_elem;
1752 const struct ieee80211_timeout_interval_ie *timeout_int;
1753 const u8 *opmode_notif;
1754 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1755 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1756 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1757 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1758 const struct ieee80211_bssid_index *bssid_index;
1759 u8 max_bssid_indicator;
1760 u8 dtim_count;
1761 u8 dtim_period;
1762 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1763 const struct ieee80211_s1g_cap *s1g_capab;
1764 const struct ieee80211_s1g_oper_ie *s1g_oper;
1765 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1766 const struct ieee80211_aid_response_ie *aid_resp;
1767 const struct ieee80211_eht_cap_elem *eht_cap;
1768 const struct ieee80211_eht_operation *eht_operation;
1769 const struct ieee80211_multi_link_elem *ml_basic;
1770 const struct ieee80211_multi_link_elem *ml_reconf;
1771 const struct ieee80211_multi_link_elem *ml_epcs;
1772 const struct ieee80211_bandwidth_indication *bandwidth_indication;
1773 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT];
1774
1775 /* not the order in the psd values is per element, not per chandef */
1776 struct ieee80211_parsed_tpe tpe;
1777 struct ieee80211_parsed_tpe csa_tpe;
1778
1779 /* length of them, respectively */
1780 u8 ext_capab_len;
1781 u8 ssid_len;
1782 u8 supp_rates_len;
1783 u8 tim_len;
1784 u8 rsn_len;
1785 u8 rsnx_len;
1786 u8 ext_supp_rates_len;
1787 u8 wmm_info_len;
1788 u8 wmm_param_len;
1789 u8 he_cap_len;
1790 u8 mesh_id_len;
1791 u8 peering_len;
1792 u8 preq_len;
1793 u8 prep_len;
1794 u8 perr_len;
1795 u8 country_elem_len;
1796 u8 bssid_index_len;
1797 u8 eht_cap_len;
1798
1799 /* mult-link element can be de-fragmented and thus u8 is not sufficient */
1800 size_t ml_basic_len;
1801 size_t ml_reconf_len;
1802 size_t ml_epcs_len;
1803
1804 u8 ttlm_num;
1805
1806 /*
1807 * store the per station profile pointer and length in case that the
1808 * parsing also handled Multi-Link element parsing for a specific link
1809 * ID.
1810 */
1811 struct ieee80211_mle_per_sta_profile *prof;
1812 size_t sta_prof_len;
1813
1814 /* whether/which parse error occurred while retrieving these elements */
1815 u8 parse_error;
1816 };
1817
hw_to_local(struct ieee80211_hw * hw)1818 static inline struct ieee80211_local *hw_to_local(
1819 struct ieee80211_hw *hw)
1820 {
1821 return container_of(hw, struct ieee80211_local, hw);
1822 }
1823
to_txq_info(struct ieee80211_txq * txq)1824 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1825 {
1826 return container_of(txq, struct txq_info, txq);
1827 }
1828
txq_has_queue(struct ieee80211_txq * txq)1829 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1830 {
1831 struct txq_info *txqi = to_txq_info(txq);
1832
1833 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1834 }
1835
1836 static inline bool
ieee80211_have_rx_timestamp(struct ieee80211_rx_status * status)1837 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1838 {
1839 return status->flag & RX_FLAG_MACTIME;
1840 }
1841
1842 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1843 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1844
1845 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata);
1846 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata);
1847
1848 /* This function returns the number of multicast stations connected to this
1849 * interface. It returns -1 if that number is not tracked, that is for netdevs
1850 * not in AP or AP_VLAN mode or when using 4addr.
1851 */
1852 static inline int
ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data * sdata)1853 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1854 {
1855 if (sdata->vif.type == NL80211_IFTYPE_AP)
1856 return atomic_read(&sdata->u.ap.num_mcast_sta);
1857 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1858 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1859 return -1;
1860 }
1861
1862 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1863 struct ieee80211_rx_status *status,
1864 unsigned int mpdu_len,
1865 unsigned int mpdu_offset);
1866 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1867 int ieee80211_hw_conf_chan(struct ieee80211_local *local);
1868 void ieee80211_hw_conf_init(struct ieee80211_local *local);
1869 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1870 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1871 u64 changed);
1872 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1873 u64 changed);
1874 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1875 struct ieee80211_link_data *link,
1876 u64 changed);
1877 void ieee80211_configure_filter(struct ieee80211_local *local);
1878 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1879
1880 void ieee80211_handle_queued_frames(struct ieee80211_local *local);
1881
1882 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1883 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1884 u64 *cookie, gfp_t gfp);
1885
1886 void ieee80211_check_fast_rx(struct sta_info *sta);
1887 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1888 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1889 void ieee80211_clear_fast_rx(struct sta_info *sta);
1890
1891 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
1892 const u8 *addr, int *out_link_id);
1893
1894 /* STA code */
1895 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1896 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1897 struct cfg80211_auth_request *req);
1898 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1899 struct cfg80211_assoc_request *req);
1900 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1901 struct cfg80211_deauth_request *req);
1902 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1903 struct cfg80211_disassoc_request *req);
1904 void ieee80211_send_pspoll(struct ieee80211_local *local,
1905 struct ieee80211_sub_if_data *sdata);
1906 void ieee80211_recalc_ps(struct ieee80211_local *local);
1907 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1908 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1909 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1910 struct sk_buff *skb);
1911 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1912 struct sk_buff *skb);
1913 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1914 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1915 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1916 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1917 __le16 fc, bool acked);
1918 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1919 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1920 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1921 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1922 u8 reason, bool tx);
1923 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
1924 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
1925 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link);
1926
1927 /* IBSS code */
1928 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1929 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1930 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1931 const u8 *bssid, const u8 *addr, u32 supp_rates);
1932 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1933 struct cfg80211_ibss_params *params);
1934 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1935 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1936 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1937 struct sk_buff *skb);
1938 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1939 struct cfg80211_csa_settings *csa_settings,
1940 u64 *changed);
1941 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata,
1942 u64 *changed);
1943 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1944
1945 /* OCB code */
1946 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1947 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1948 const u8 *bssid, const u8 *addr, u32 supp_rates);
1949 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1950 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1951 struct ocb_setup *setup);
1952 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1953
1954 /* mesh code */
1955 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1956 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1957 struct sk_buff *skb);
1958 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1959 struct cfg80211_csa_settings *csa_settings,
1960 u64 *changed);
1961 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
1962 u64 *changed);
1963
1964 /* scan/BSS handling */
1965 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work);
1966 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1967 const u8 *ssid, u8 ssid_len,
1968 struct ieee80211_channel **channels,
1969 unsigned int n_channels);
1970 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1971 struct cfg80211_scan_request *req);
1972 void ieee80211_scan_cancel(struct ieee80211_local *local);
1973 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1974 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1975
1976 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss,
1977 const struct cfg80211_bss_ies *ies, void *data);
1978
1979 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1980 struct ieee80211_bss *
1981 ieee80211_bss_info_update(struct ieee80211_local *local,
1982 struct ieee80211_rx_status *rx_status,
1983 struct ieee80211_mgmt *mgmt,
1984 size_t len,
1985 struct ieee80211_channel *channel);
1986 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1987 struct ieee80211_bss *bss);
1988
1989 /* scheduled scan handling */
1990 int
1991 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1992 struct cfg80211_sched_scan_request *req);
1993 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1994 struct cfg80211_sched_scan_request *req);
1995 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1996 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1997 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy,
1998 struct wiphy_work *work);
1999
2000 /* off-channel/mgmt-tx */
2001 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
2002 void ieee80211_offchannel_return(struct ieee80211_local *local);
2003 void ieee80211_roc_setup(struct ieee80211_local *local);
2004 void ieee80211_start_next_roc(struct ieee80211_local *local);
2005 void ieee80211_reconfig_roc(struct ieee80211_local *local);
2006 void ieee80211_roc_purge(struct ieee80211_local *local,
2007 struct ieee80211_sub_if_data *sdata);
2008 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
2009 struct ieee80211_channel *chan,
2010 unsigned int duration, u64 *cookie);
2011 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2012 struct wireless_dev *wdev, u64 cookie);
2013 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2014 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
2015 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2016 struct wireless_dev *wdev, u64 cookie);
2017
2018 /* channel switch handling */
2019 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work);
2020 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2021 struct cfg80211_csa_settings *params);
2022
2023 /* color change handling */
2024 void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
2025 struct wiphy_work *work);
2026 void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
2027 struct wiphy_work *work);
2028
2029 /* interface handling */
2030 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
2031 NETIF_F_HW_CSUM | NETIF_F_SG | \
2032 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
2033 NETIF_F_HW_TC)
2034 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
2035 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
2036 MAC80211_SUPPORTED_FEATURES_RX)
2037
2038 int ieee80211_iface_init(void);
2039 void ieee80211_iface_exit(void);
2040 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
2041 unsigned char name_assign_type,
2042 struct wireless_dev **new_wdev, enum nl80211_iftype type,
2043 struct vif_params *params);
2044 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
2045 enum nl80211_iftype type);
2046 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
2047 void ieee80211_remove_interfaces(struct ieee80211_local *local);
2048 u32 ieee80211_idle_off(struct ieee80211_local *local);
2049 void ieee80211_recalc_idle(struct ieee80211_local *local);
2050 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
2051 const int offset);
2052 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
2053 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
2054 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
2055 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
2056
2057 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link);
2058 void ieee80211_recalc_txpower(struct ieee80211_link_data *link,
2059 bool update_bss);
2060 void ieee80211_recalc_offload(struct ieee80211_local *local);
2061
ieee80211_sdata_running(struct ieee80211_sub_if_data * sdata)2062 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
2063 {
2064 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
2065 }
2066
2067 /* link handling */
2068 void ieee80211_link_setup(struct ieee80211_link_data *link);
2069 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
2070 int link_id,
2071 struct ieee80211_link_data *link,
2072 struct ieee80211_bss_conf *link_conf);
2073 void ieee80211_link_stop(struct ieee80211_link_data *link);
2074 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2075 u16 new_links, u16 dormant_links);
ieee80211_vif_clear_links(struct ieee80211_sub_if_data * sdata)2076 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata)
2077 {
2078 ieee80211_vif_set_links(sdata, 0, 0);
2079 }
2080
2081 /* tx handling */
2082 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2083 void ieee80211_tx_pending(struct tasklet_struct *t);
2084 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2085 struct net_device *dev);
2086 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2087 struct net_device *dev);
2088 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2089 struct net_device *dev);
2090 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2091 struct net_device *dev,
2092 u32 info_flags,
2093 u32 ctrl_flags,
2094 u64 *cookie);
2095 struct sk_buff *
2096 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2097 struct sk_buff *skb, u32 info_flags);
2098 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2099 int retry_count, struct ieee80211_tx_status *status);
2100
2101 void ieee80211_check_fast_xmit(struct sta_info *sta);
2102 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2103 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2104 void ieee80211_clear_fast_xmit(struct sta_info *sta);
2105 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2106 const u8 *buf, size_t len,
2107 const u8 *dest, __be16 proto, bool unencrypted,
2108 int link_id, u64 *cookie);
2109 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2110 const u8 *buf, size_t len);
2111 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
2112 struct sta_info *sta,
2113 struct ieee80211_fast_tx *fast_tx,
2114 struct sk_buff *skb, bool ampdu,
2115 const u8 *da, const u8 *sa);
2116 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
2117 struct sta_info *sta, struct sk_buff *skb);
2118
2119 /* HT */
2120 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2121 struct ieee80211_sta_ht_cap *ht_cap);
2122 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2123 struct ieee80211_supported_band *sband,
2124 const struct ieee80211_ht_cap *ht_cap_ie,
2125 struct link_sta_info *link_sta);
2126 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2127 const u8 *da, u16 tid,
2128 u16 initiator, u16 reason_code);
2129 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2130 enum ieee80211_smps_mode smps, const u8 *da,
2131 const u8 *bssid, int link_id);
2132 void ieee80211_add_addbaext(struct sk_buff *skb,
2133 const u8 req_addba_ext_data,
2134 u16 buf_size);
2135 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta,
2136 const void *elem_data, ssize_t elem_len,
2137 u16 *buf_size);
2138 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2139 u16 initiator, u16 reason, bool stop);
2140 void __ieee80211_start_rx_ba_session(struct sta_info *sta,
2141 u8 dialog_token, u16 timeout,
2142 u16 start_seq_num, u16 ba_policy, u16 tid,
2143 u16 buf_size, bool tx, bool auto_seq,
2144 const u8 addba_ext_data);
2145 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2146 enum ieee80211_agg_stop_reason reason);
2147 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2148 struct sta_info *sta,
2149 struct ieee80211_mgmt *mgmt, size_t len);
2150 void ieee80211_process_addba_resp(struct ieee80211_local *local,
2151 struct sta_info *sta,
2152 struct ieee80211_mgmt *mgmt,
2153 size_t len);
2154 void ieee80211_process_addba_request(struct ieee80211_local *local,
2155 struct sta_info *sta,
2156 struct ieee80211_mgmt *mgmt,
2157 size_t len);
2158
2159 static inline struct ieee80211_mgmt *
ieee80211_mgmt_ba(struct sk_buff * skb,const u8 * da,struct ieee80211_sub_if_data * sdata)2160 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da,
2161 struct ieee80211_sub_if_data *sdata)
2162 {
2163 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24);
2164
2165 ether_addr_copy(mgmt->da, da);
2166 ether_addr_copy(mgmt->sa, sdata->vif.addr);
2167
2168 if (sdata->vif.type == NL80211_IFTYPE_AP ||
2169 sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
2170 sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
2171 ether_addr_copy(mgmt->bssid, sdata->vif.addr);
2172 else if (sdata->vif.type == NL80211_IFTYPE_STATION)
2173 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr);
2174 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
2175 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid);
2176
2177 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2178 IEEE80211_STYPE_ACTION);
2179 return mgmt;
2180 }
2181
2182 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2183 enum ieee80211_agg_stop_reason reason);
2184 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2185 struct tid_ampdu_tx *tid_tx);
2186 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2187 struct tid_ampdu_tx *tid_tx);
2188 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work);
2189 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2190 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2191
2192 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2193 enum nl80211_smps_mode
2194 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2195
2196 /* VHT */
2197 void
2198 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2199 struct ieee80211_supported_band *sband,
2200 const struct ieee80211_vht_cap *vht_cap_ie,
2201 const struct ieee80211_vht_cap *vht_cap_ie2,
2202 struct link_sta_info *link_sta);
2203 enum ieee80211_sta_rx_bandwidth
2204 _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta,
2205 struct cfg80211_chan_def *chandef);
2206 static inline enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cap_rx_bw(struct link_sta_info * link_sta)2207 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta)
2208 {
2209 return _ieee80211_sta_cap_rx_bw(link_sta, NULL);
2210 }
2211 enum ieee80211_sta_rx_bandwidth
2212 _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta,
2213 struct cfg80211_chan_def *chandef);
2214 static inline enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cur_vht_bw(struct link_sta_info * link_sta)2215 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta)
2216 {
2217 return _ieee80211_sta_cur_vht_bw(link_sta, NULL);
2218 }
2219 void ieee80211_sta_init_nss(struct link_sta_info *link_sta);
2220 enum nl80211_chan_width
2221 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
2222 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2223 struct ieee80211_link_data *link,
2224 struct ieee80211_mgmt *mgmt);
2225 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2226 struct link_sta_info *sta,
2227 u8 opmode, enum nl80211_band band);
2228 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2229 struct link_sta_info *sta,
2230 u8 opmode, enum nl80211_band band);
2231 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2232 struct ieee80211_sta_vht_cap *vht_cap);
2233 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2234 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2235 enum nl80211_chan_width
2236 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
2237
2238 /* HE */
2239 void
2240 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2241 struct ieee80211_supported_band *sband,
2242 const u8 *he_cap_ie, u8 he_cap_len,
2243 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2244 struct link_sta_info *link_sta);
2245 void
2246 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2247 const struct ieee80211_he_spr *he_spr_ie_elem);
2248
2249 void
2250 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2251 const struct ieee80211_he_operation *he_op_ie_elem);
2252
2253 /* S1G */
2254 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2255 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2256 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2257 struct sk_buff *skb);
2258 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2259 struct sk_buff *skb);
2260
2261 /* Spectrum management */
2262 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2263 struct ieee80211_mgmt *mgmt,
2264 size_t len);
2265 /**
2266 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2267 * @sdata: the sdata of the interface which has received the frame
2268 * @elems: parsed 802.11 elements received with the frame
2269 * @current_band: indicates the current band
2270 * @vht_cap_info: VHT capabilities of the transmitter
2271 * @conn: contains information about own capabilities and restrictions
2272 * to decide which channel switch announcements can be accepted
2273 * @bssid: the currently connected bssid (for reporting)
2274 * @unprot_action: whether the frame was an unprotected frame or not,
2275 * used for reporting
2276 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2277 * All of them will be filled with if success only.
2278 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2279 */
2280 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2281 struct ieee802_11_elems *elems,
2282 enum nl80211_band current_band,
2283 u32 vht_cap_info,
2284 struct ieee80211_conn_settings *conn,
2285 u8 *bssid, bool unprot_action,
2286 struct ieee80211_csa_ie *csa_ie);
2287
2288 /* Suspend/resume and hw reconfiguration */
2289 int ieee80211_reconfig(struct ieee80211_local *local);
2290 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend);
2291
2292 int __ieee80211_suspend(struct ieee80211_hw *hw,
2293 struct cfg80211_wowlan *wowlan);
2294
__ieee80211_resume(struct ieee80211_hw * hw)2295 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2296 {
2297 struct ieee80211_local *local = hw_to_local(hw);
2298
2299 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2300 !test_bit(SCAN_COMPLETED, &local->scanning),
2301 "%s: resume with hardware scan still in progress\n",
2302 wiphy_name(hw->wiphy));
2303
2304 return ieee80211_reconfig(hw_to_local(hw));
2305 }
2306
2307 /* utility functions/constants */
2308 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2309 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode);
2310 enum ieee80211_conn_bw_limit
2311 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef);
2312 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2313 int rate, int erp, int short_preamble);
2314 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2315 struct ieee80211_tx_queue_params *qparam,
2316 int ac);
2317 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe);
2318 void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
2319 bool bss_notify, bool enable_qos);
2320 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2321 struct sta_info *sta, struct sk_buff *skb);
2322
2323 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2324 struct sk_buff *skb, int tid, int link_id,
2325 enum nl80211_band band);
2326
2327 /* sta_out needs to be checked for ERR_PTR() before using */
2328 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2329 struct sk_buff *skb,
2330 struct sta_info **sta_out);
2331
2332 static inline void
ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data * sdata,struct sk_buff * skb,int tid,enum nl80211_band band)2333 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2334 struct sk_buff *skb, int tid,
2335 enum nl80211_band band)
2336 {
2337 rcu_read_lock();
2338 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band);
2339 rcu_read_unlock();
2340 }
2341
2342 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2343 struct sk_buff *skb, int tid, int link_id);
2344
ieee80211_tx_skb(struct ieee80211_sub_if_data * sdata,struct sk_buff * skb)2345 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2346 struct sk_buff *skb)
2347 {
2348 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2349 ieee80211_tx_skb_tid(sdata, skb, 7, -1);
2350 }
2351
2352 /**
2353 * struct ieee80211_elems_parse_params - element parsing parameters
2354 * @mode: connection mode for parsing
2355 * @start: pointer to the elements
2356 * @len: length of the elements
2357 * @action: %true if the elements came from an action frame
2358 * @filter: bitmap of element IDs to filter out while calculating
2359 * the element CRC
2360 * @crc: CRC starting value
2361 * @bss: the BSS to parse this as, for multi-BSSID cases this can
2362 * represent a non-transmitting BSS in which case the data
2363 * for that non-transmitting BSS is returned
2364 * @link_id: the link ID to parse elements for, if a STA profile
2365 * is present in the multi-link element, or -1 to ignore;
2366 * note that the code currently assumes parsing an association
2367 * (or re-association) response frame if this is given
2368 * @from_ap: frame is received from an AP (currently used only
2369 * for EHT capabilities parsing)
2370 */
2371 struct ieee80211_elems_parse_params {
2372 enum ieee80211_conn_mode mode;
2373 const u8 *start;
2374 size_t len;
2375 bool action;
2376 u64 filter;
2377 u32 crc;
2378 struct cfg80211_bss *bss;
2379 int link_id;
2380 bool from_ap;
2381 };
2382
2383 struct ieee802_11_elems *
2384 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
2385
2386 static inline struct ieee802_11_elems *
ieee802_11_parse_elems_crc(const u8 * start,size_t len,bool action,u64 filter,u32 crc,struct cfg80211_bss * bss)2387 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2388 u64 filter, u32 crc,
2389 struct cfg80211_bss *bss)
2390 {
2391 struct ieee80211_elems_parse_params params = {
2392 .mode = IEEE80211_CONN_MODE_HIGHEST,
2393 .start = start,
2394 .len = len,
2395 .action = action,
2396 .filter = filter,
2397 .crc = crc,
2398 .bss = bss,
2399 .link_id = -1,
2400 };
2401
2402 return ieee802_11_parse_elems_full(¶ms);
2403 }
2404
2405 static inline struct ieee802_11_elems *
ieee802_11_parse_elems(const u8 * start,size_t len,bool action,struct cfg80211_bss * bss)2406 ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2407 struct cfg80211_bss *bss)
2408 {
2409 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss);
2410 }
2411
2412 extern const int ieee802_1d_to_ac[8];
2413
ieee80211_ac_from_tid(int tid)2414 static inline int ieee80211_ac_from_tid(int tid)
2415 {
2416 return ieee802_1d_to_ac[tid & 7];
2417 }
2418
2419 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy,
2420 struct wiphy_work *work);
2421 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy,
2422 struct wiphy_work *work);
2423 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2424 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2425 struct ieee80211_sub_if_data *sdata,
2426 bool powersave);
2427 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2428 struct ieee80211_sub_if_data *sdata);
2429 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2430 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2431 unsigned int
2432 ieee80211_get_vif_queues(struct ieee80211_local *local,
2433 struct ieee80211_sub_if_data *sdata);
2434 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2435 unsigned long queues,
2436 enum queue_stop_reason reason,
2437 bool refcounted);
2438 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2439 unsigned long queues,
2440 enum queue_stop_reason reason,
2441 bool refcounted);
2442 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2443 enum queue_stop_reason reason,
2444 bool refcounted);
2445 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2446 enum queue_stop_reason reason,
2447 bool refcounted);
2448 static inline void
ieee80211_stop_vif_queues(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2449 ieee80211_stop_vif_queues(struct ieee80211_local *local,
2450 struct ieee80211_sub_if_data *sdata,
2451 enum queue_stop_reason reason)
2452 {
2453 ieee80211_stop_queues_by_reason(&local->hw,
2454 ieee80211_get_vif_queues(local, sdata),
2455 reason, true);
2456 }
2457
2458 static inline void
ieee80211_wake_vif_queues(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2459 ieee80211_wake_vif_queues(struct ieee80211_local *local,
2460 struct ieee80211_sub_if_data *sdata,
2461 enum queue_stop_reason reason)
2462 {
2463 ieee80211_wake_queues_by_reason(&local->hw,
2464 ieee80211_get_vif_queues(local, sdata),
2465 reason, true);
2466 }
2467 static inline void
ieee80211_stop_vif_queues_norefcount(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2468 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local,
2469 struct ieee80211_sub_if_data *sdata,
2470 enum queue_stop_reason reason)
2471 {
2472 ieee80211_stop_queues_by_reason(&local->hw,
2473 ieee80211_get_vif_queues(local, sdata),
2474 reason, false);
2475 }
2476 static inline void
ieee80211_wake_vif_queues_norefcount(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2477 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local,
2478 struct ieee80211_sub_if_data *sdata,
2479 enum queue_stop_reason reason)
2480 {
2481 ieee80211_wake_queues_by_reason(&local->hw,
2482 ieee80211_get_vif_queues(local, sdata),
2483 reason, false);
2484 }
2485 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2486 struct sk_buff *skb);
2487 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2488 struct sk_buff_head *skbs);
2489 void ieee80211_flush_queues(struct ieee80211_local *local,
2490 struct ieee80211_sub_if_data *sdata, bool drop);
2491 void __ieee80211_flush_queues(struct ieee80211_local *local,
2492 struct ieee80211_sub_if_data *sdata,
2493 unsigned int queues, bool drop);
2494
ieee80211_can_run_worker(struct ieee80211_local * local)2495 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2496 {
2497 /*
2498 * It's unsafe to try to do any work during reconfigure flow.
2499 * When the flow ends the work will be requeued.
2500 */
2501 if (local->in_reconfig)
2502 return false;
2503
2504 /*
2505 * If quiescing is set, we are racing with __ieee80211_suspend.
2506 * __ieee80211_suspend flushes the workers after setting quiescing,
2507 * and we check quiescing / suspended before enqueuing new workers.
2508 * We should abort the worker to avoid the races below.
2509 */
2510 if (local->quiescing)
2511 return false;
2512
2513 /*
2514 * We might already be suspended if the following scenario occurs:
2515 * __ieee80211_suspend Control path
2516 *
2517 * if (local->quiescing)
2518 * return;
2519 * local->quiescing = true;
2520 * flush_workqueue();
2521 * queue_work(...);
2522 * local->suspended = true;
2523 * local->quiescing = false;
2524 * worker starts running...
2525 */
2526 if (local->suspended)
2527 return false;
2528
2529 return true;
2530 }
2531
2532 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2533 void ieee80211_txq_set_params(struct ieee80211_local *local);
2534 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2535 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2536 struct sta_info *sta,
2537 struct txq_info *txq, int tid);
2538 void ieee80211_txq_purge(struct ieee80211_local *local,
2539 struct txq_info *txqi);
2540 void ieee80211_purge_sta_txqs(struct sta_info *sta);
2541 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2542 struct ieee80211_sub_if_data *sdata);
2543 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2544 struct txq_info *txqi);
2545 void ieee80211_wake_txqs(struct tasklet_struct *t);
2546 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2547 u16 transaction, u16 auth_alg, u16 status,
2548 const u8 *extra, size_t extra_len, const u8 *bssid,
2549 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2550 u32 tx_flags);
2551 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2552 const u8 *da, const u8 *bssid,
2553 u16 stype, u16 reason,
2554 bool send_frame, u8 *frame_buf);
2555
2556 enum {
2557 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2558 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2559 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2560 };
2561
2562 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2563 size_t buffer_len,
2564 struct ieee80211_scan_ies *ie_desc,
2565 const u8 *ie, size_t ie_len,
2566 u8 bands_used, u32 *rate_masks,
2567 struct cfg80211_chan_def *chandef,
2568 u32 flags);
2569 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2570 const u8 *src, const u8 *dst,
2571 u32 ratemask,
2572 struct ieee80211_channel *chan,
2573 const u8 *ssid, size_t ssid_len,
2574 const u8 *ie, size_t ie_len,
2575 u32 flags);
2576 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2577 struct ieee802_11_elems *elems,
2578 enum nl80211_band band, u32 *basic_rates);
2579 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2580 struct ieee80211_link_data *link,
2581 enum ieee80211_smps_mode smps_mode);
2582 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2583 struct ieee80211_link_data *link);
2584 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2585 int link_id);
2586
2587 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2588 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2589 u16 cap);
2590 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2591 const struct cfg80211_chan_def *chandef,
2592 u16 prot_mode, bool rifs_mode);
2593 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2594 const struct cfg80211_chan_def *chandef);
2595 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2596 u32 cap);
2597 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2598 const struct cfg80211_chan_def *chandef);
2599 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata);
2600 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef);
2601 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef,
2602 const struct ieee80211_sta_eht_cap *eht_cap);
2603 int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2604 const struct ieee80211_supported_band *sband,
2605 const u8 *srates, int srates_len, u32 *rates);
2606 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2607 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2608 struct ieee80211_sta_s1g_cap *caps,
2609 struct sk_buff *skb);
2610 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2611 struct sk_buff *skb);
2612
2613 /* element building in SKBs */
2614 int ieee80211_put_srates_elem(struct sk_buff *skb,
2615 const struct ieee80211_supported_band *sband,
2616 u32 basic_rates, u32 rate_flags, u32 masked_rates,
2617 u8 element_id);
2618 int ieee80211_put_he_cap(struct sk_buff *skb,
2619 struct ieee80211_sub_if_data *sdata,
2620 const struct ieee80211_supported_band *sband,
2621 const struct ieee80211_conn_settings *conn);
2622 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb,
2623 struct ieee80211_sub_if_data *sdata,
2624 enum ieee80211_smps_mode smps_mode);
2625 int ieee80211_put_eht_cap(struct sk_buff *skb,
2626 struct ieee80211_sub_if_data *sdata,
2627 const struct ieee80211_supported_band *sband,
2628 const struct ieee80211_conn_settings *conn);
2629
2630 /* channel management */
2631 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2632 struct cfg80211_chan_def *chandef);
2633 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2634 const struct ieee80211_vht_operation *oper,
2635 const struct ieee80211_ht_operation *htop,
2636 struct cfg80211_chan_def *chandef);
2637 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info,
2638 struct cfg80211_chan_def *chandef);
2639 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local,
2640 const struct ieee80211_he_operation *he_oper,
2641 const struct ieee80211_eht_operation *eht_oper,
2642 struct cfg80211_chan_def *chandef);
2643 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2644 struct cfg80211_chan_def *chandef);
2645 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef,
2646 struct ieee80211_conn_settings *conn);
2647 static inline void
ieee80211_chanreq_downgrade(struct ieee80211_chan_req * chanreq,struct ieee80211_conn_settings * conn)2648 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq,
2649 struct ieee80211_conn_settings *conn)
2650 {
2651 ieee80211_chandef_downgrade(&chanreq->oper, conn);
2652 if (WARN_ON(!conn))
2653 return;
2654 if (conn->mode < IEEE80211_CONN_MODE_EHT)
2655 chanreq->ap.chan = NULL;
2656 }
2657
2658 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a,
2659 const struct ieee80211_chan_req *b);
2660
2661 int __must_check
2662 _ieee80211_link_use_channel(struct ieee80211_link_data *link,
2663 const struct ieee80211_chan_req *req,
2664 enum ieee80211_chanctx_mode mode,
2665 bool assign_on_failure);
2666
2667 static inline int __must_check
ieee80211_link_use_channel(struct ieee80211_link_data * link,const struct ieee80211_chan_req * req,enum ieee80211_chanctx_mode mode)2668 ieee80211_link_use_channel(struct ieee80211_link_data *link,
2669 const struct ieee80211_chan_req *req,
2670 enum ieee80211_chanctx_mode mode)
2671 {
2672 return _ieee80211_link_use_channel(link, req, mode, false);
2673 }
2674
2675 int __must_check
2676 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2677 const struct ieee80211_chan_req *req,
2678 enum ieee80211_chanctx_mode mode,
2679 bool radar_required);
2680 int __must_check
2681 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2682 int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2683
2684 int __must_check
2685 ieee80211_link_change_chanreq(struct ieee80211_link_data *link,
2686 const struct ieee80211_chan_req *req,
2687 u64 *changed);
2688 void __ieee80211_link_release_channel(struct ieee80211_link_data *link,
2689 bool skip_idle_recalc);
2690 void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2691 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2692 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2693 bool clear);
2694 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2695 struct ieee80211_chanctx *ctx);
2696
2697 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2698 struct ieee80211_chanctx *chanctx);
2699 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2700 struct ieee80211_chanctx *ctx,
2701 struct ieee80211_link_data *rsvd_for,
2702 bool check_reserved);
2703 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2704
2705 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work);
2706 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local,
2707 struct ieee80211_chanctx *chanctx);
2708 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy,
2709 struct wiphy_work *work);
2710 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2711 struct cfg80211_csa_settings *csa_settings);
2712
2713 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2714 struct ieee80211_sub_if_data *sdata);
2715 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2716 const struct cfg80211_chan_def *chandef,
2717 enum ieee80211_chanctx_mode chanmode,
2718 u8 radar_detect, int radio_idx);
2719 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx);
2720 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev);
2721 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2722 struct ieee80211_chanctx *ctx);
2723
2724 /* TDLS */
2725 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2726 const u8 *peer, int link_id,
2727 u8 action_code, u8 dialog_token, u16 status_code,
2728 u32 peer_capability, bool initiator,
2729 const u8 *extra_ies, size_t extra_ies_len);
2730 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2731 const u8 *peer, enum nl80211_tdls_operation oper);
2732 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk);
2733 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2734 const u8 *addr, u8 oper_class,
2735 struct cfg80211_chan_def *chandef);
2736 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2737 struct net_device *dev,
2738 const u8 *addr);
2739 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link);
2740 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2741 const u8 *peer, u16 reason);
2742 void
2743 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2744 struct sk_buff *skb);
2745
2746
2747 const char *ieee80211_get_reason_code_string(u16 reason_code);
2748 u16 ieee80211_encode_usf(int val);
2749 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2750 enum nl80211_iftype type);
2751
2752 extern const struct ethtool_ops ieee80211_ethtool_ops;
2753
2754 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2755 struct ieee80211_vif *vif,
2756 struct ieee80211_sta *pubsta,
2757 int len, bool ampdu);
2758 #ifdef CONFIG_MAC80211_NOINLINE
2759 #define debug_noinline noinline
2760 #else
2761 #define debug_noinline
2762 #endif
2763
2764 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2765 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2766
2767 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata);
2768
2769 void
2770 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2771 struct ieee80211_supported_band *sband,
2772 const u8 *he_cap_ie, u8 he_cap_len,
2773 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2774 u8 eht_cap_len,
2775 struct link_sta_info *link_sta);
2776 void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata,
2777 struct ieee80211_mgmt *mgmt, size_t len);
2778 void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata,
2779 struct ieee80211_mgmt *mgmt, size_t len);
2780 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata,
2781 struct cfg80211_ttlm_params *params);
2782 void ieee80211_process_ttlm_teardown(struct ieee80211_sub_if_data *sdata);
2783
2784 void ieee80211_check_wbrf_support(struct ieee80211_local *local);
2785 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2786 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2787 int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable);
2788 void ieee80211_process_epcs_ena_resp(struct ieee80211_sub_if_data *sdata,
2789 struct ieee80211_mgmt *mgmt, size_t len);
2790 void ieee80211_process_epcs_teardown(struct ieee80211_sub_if_data *sdata,
2791 struct ieee80211_mgmt *mgmt, size_t len);
2792
2793 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata,
2794 struct cfg80211_ml_reconf_req *req);
2795
2796 void ieee80211_process_ml_reconf_resp(struct ieee80211_sub_if_data *sdata,
2797 struct ieee80211_mgmt *mgmt, size_t len);
2798 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST)
2799 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym)
2800 #define VISIBLE_IF_MAC80211_KUNIT
2801 ieee80211_rx_result
2802 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx);
2803 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap,
2804 u8 n_partial_subchans);
2805 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd,
2806 const struct cfg80211_chan_def *ap,
2807 const struct cfg80211_chan_def *used);
2808 struct ieee802_11_elems *
2809 ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata,
2810 struct ieee80211_conn_settings *conn,
2811 struct cfg80211_bss *cbss, int link_id,
2812 struct ieee80211_chan_req *chanreq,
2813 struct cfg80211_chan_def *ap_chandef,
2814 unsigned long *userspace_selectors);
2815 #else
2816 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym)
2817 #define VISIBLE_IF_MAC80211_KUNIT static
2818 #endif
2819
2820 #endif /* IEEE80211_I_H */
2821