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