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 unsigned long userspace_selectors[BITS_TO_LONGS(128)];
408
409 u8 key[WLAN_KEY_LEN_WEP104];
410 u8 key_len, key_idx;
411 bool done, waiting;
412 bool peer_confirmed;
413 bool timeout_started;
414 int link_id;
415
416 u8 ap_addr[ETH_ALEN] __aligned(2);
417
418 u16 sae_trans, sae_status;
419 size_t data_len;
420 u8 data[];
421 };
422
423 struct ieee80211_mgd_assoc_data {
424 struct {
425 struct cfg80211_bss *bss;
426
427 u8 addr[ETH_ALEN] __aligned(2);
428
429 u8 ap_ht_param;
430
431 struct ieee80211_vht_cap ap_vht_cap;
432
433 size_t elems_len;
434 u8 *elems; /* pointing to inside ie[] below */
435
436 struct ieee80211_conn_settings conn;
437
438 u16 status;
439
440 bool disabled;
441 } link[IEEE80211_MLD_MAX_NUM_LINKS];
442
443 u8 ap_addr[ETH_ALEN] __aligned(2);
444
445 /* this is for a workaround, so we use it only for non-MLO */
446 const u8 *supp_rates;
447 u8 supp_rates_len;
448
449 unsigned long userspace_selectors[BITS_TO_LONGS(128)];
450
451 unsigned long timeout;
452 int tries;
453
454 u8 prev_ap_addr[ETH_ALEN];
455 u8 ssid[IEEE80211_MAX_SSID_LEN];
456 u8 ssid_len;
457 bool wmm, uapsd;
458 bool need_beacon;
459 bool synced;
460 bool timeout_started;
461 bool comeback; /* whether the AP has requested association comeback */
462 bool s1g;
463 bool spp_amsdu;
464
465 unsigned int assoc_link_id;
466
467 u8 fils_nonces[2 * FILS_NONCE_LEN];
468 u8 fils_kek[FILS_MAX_KEK_LEN];
469 size_t fils_kek_len;
470
471 size_t ie_len;
472 u8 *ie_pos; /* used to fill ie[] with link[].elems */
473 u8 ie[];
474 };
475
476 struct ieee80211_sta_tx_tspec {
477 /* timestamp of the first packet in the time slice */
478 unsigned long time_slice_start;
479
480 u32 admitted_time; /* in usecs, unlike over the air */
481 u8 tsid;
482 s8 up; /* signed to be able to invalidate with -1 during teardown */
483
484 /* consumed TX time in microseconds in the time slice */
485 u32 consumed_tx_time;
486 enum {
487 TX_TSPEC_ACTION_NONE = 0,
488 TX_TSPEC_ACTION_DOWNGRADE,
489 TX_TSPEC_ACTION_STOP_DOWNGRADE,
490 } action;
491 bool downgraded;
492 };
493
494 /* Advertised TID-to-link mapping info */
495 struct ieee80211_adv_ttlm_info {
496 /* time in TUs at which the new mapping is established, or 0 if there is
497 * no planned advertised TID-to-link mapping
498 */
499 u16 switch_time;
500 u32 duration; /* duration of the planned T2L map in TUs */
501 u16 map; /* map of usable links for all TIDs */
502 bool active; /* whether the advertised mapping is active or not */
503 };
504
505 DECLARE_EWMA(beacon_signal, 4, 4)
506
507 struct ieee80211_if_managed {
508 struct timer_list timer;
509 struct timer_list conn_mon_timer;
510 struct timer_list bcn_mon_timer;
511 struct wiphy_work monitor_work;
512 struct wiphy_work beacon_connection_loss_work;
513 struct wiphy_work csa_connection_drop_work;
514
515 unsigned long beacon_timeout;
516 unsigned long probe_timeout;
517 int probe_send_count;
518 bool nullfunc_failed;
519 u8 connection_loss:1,
520 driver_disconnect:1,
521 reconnect:1,
522 associated:1;
523
524 struct ieee80211_mgd_auth_data *auth_data;
525 struct ieee80211_mgd_assoc_data *assoc_data;
526
527 bool powersave; /* powersave requested for this iface */
528 bool broken_ap; /* AP is broken -- turn off powersave */
529
530 unsigned int flags;
531
532 u16 mcast_seq_last;
533
534 bool status_acked;
535 bool status_received;
536 __le16 status_fc;
537
538 enum {
539 IEEE80211_MFP_DISABLED,
540 IEEE80211_MFP_OPTIONAL,
541 IEEE80211_MFP_REQUIRED
542 } mfp; /* management frame protection */
543
544 /*
545 * Bitmask of enabled u-apsd queues,
546 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
547 * to take effect.
548 */
549 unsigned int uapsd_queues;
550
551 /*
552 * Maximum number of buffered frames AP can deliver during a
553 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
554 * Needs a new association to take effect.
555 */
556 unsigned int uapsd_max_sp_len;
557
558 u8 use_4addr;
559
560 /*
561 * State variables for keeping track of RSSI of the AP currently
562 * connected to and informing driver when RSSI has gone
563 * below/above a certain threshold.
564 */
565 int rssi_min_thold, rssi_max_thold;
566
567 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
568 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
569 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
570 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
571 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
572 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
573
574 /* TDLS support */
575 u8 tdls_peer[ETH_ALEN] __aligned(2);
576 struct wiphy_delayed_work tdls_peer_del_work;
577 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
578 struct sk_buff *teardown_skb; /* A copy to send through the AP */
579 spinlock_t teardown_lock; /* To lock changing teardown_skb */
580 bool tdls_wider_bw_prohibited;
581
582 /* WMM-AC TSPEC support */
583 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
584 /* Use a separate work struct so that we can do something here
585 * while the sdata->work is flushing the queues, for example.
586 * otherwise, in scenarios where we hardly get any traffic out
587 * on the BE queue, but there's a lot of VO traffic, we might
588 * get stuck in a downgraded situation and flush takes forever.
589 */
590 struct wiphy_delayed_work tx_tspec_wk;
591
592 /* Information elements from the last transmitted (Re)Association
593 * Request frame.
594 */
595 u8 *assoc_req_ies;
596 size_t assoc_req_ies_len;
597
598 struct wiphy_delayed_work ml_reconf_work;
599 u16 removed_links;
600
601 /* TID-to-link mapping support */
602 struct wiphy_delayed_work ttlm_work;
603 struct ieee80211_adv_ttlm_info ttlm_info;
604 struct wiphy_work teardown_ttlm_work;
605
606 /* dialog token enumerator for neg TTLM request */
607 u8 dialog_token_alloc;
608 struct wiphy_delayed_work neg_ttlm_timeout_work;
609
610 /* Locally initiated multi-link reconfiguration */
611 struct {
612 struct ieee80211_mgd_assoc_data *add_links_data;
613 struct wiphy_delayed_work wk;
614 u16 removed_links;
615 u16 added_links;
616 u8 dialog_token;
617 } reconf;
618 };
619
620 struct ieee80211_if_ibss {
621 struct timer_list timer;
622 struct wiphy_work csa_connection_drop_work;
623
624 unsigned long last_scan_completed;
625
626 u32 basic_rates;
627
628 bool fixed_bssid;
629 bool fixed_channel;
630 bool privacy;
631
632 bool control_port;
633 bool userspace_handles_dfs;
634
635 u8 bssid[ETH_ALEN] __aligned(2);
636 u8 ssid[IEEE80211_MAX_SSID_LEN];
637 u8 ssid_len, ie_len;
638 u8 *ie;
639 struct cfg80211_chan_def chandef;
640
641 unsigned long ibss_join_req;
642 /* probe response/beacon for IBSS */
643 struct beacon_data __rcu *presp;
644
645 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
646 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
647
648 spinlock_t incomplete_lock;
649 struct list_head incomplete_stations;
650
651 enum {
652 IEEE80211_IBSS_MLME_SEARCH,
653 IEEE80211_IBSS_MLME_JOINED,
654 } state;
655 };
656
657 /**
658 * struct ieee80211_if_ocb - OCB mode state
659 *
660 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
661 * @wrkq_flags: OCB deferred task action
662 * @incomplete_lock: delayed STA insertion lock
663 * @incomplete_stations: list of STAs waiting for delayed insertion
664 * @joined: indication if the interface is connected to an OCB network
665 */
666 struct ieee80211_if_ocb {
667 struct timer_list housekeeping_timer;
668 unsigned long wrkq_flags;
669
670 spinlock_t incomplete_lock;
671 struct list_head incomplete_stations;
672
673 bool joined;
674 };
675
676 /**
677 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
678 *
679 * these declarations define the interface, which enables
680 * vendor-specific mesh synchronization
681 *
682 * @rx_bcn_presp: beacon/probe response was received
683 * @adjust_tsf: TSF adjustment method
684 */
685 struct ieee80211_mesh_sync_ops {
686 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
687 struct ieee80211_mgmt *mgmt, unsigned int len,
688 const struct ieee80211_meshconf_ie *mesh_cfg,
689 struct ieee80211_rx_status *rx_status);
690
691 /* should be called with beacon_data under RCU read lock */
692 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
693 struct beacon_data *beacon);
694 /* add other framework functions here */
695 };
696
697 struct mesh_csa_settings {
698 struct rcu_head rcu_head;
699 struct cfg80211_csa_settings settings;
700 };
701
702 /**
703 * struct mesh_table - mesh hash table
704 *
705 * @known_gates: list of known mesh gates and their mpaths by the station. The
706 * gate's mpath may or may not be resolved and active.
707 * @gates_lock: protects updates to known_gates
708 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
709 * @walk_head: linked list containing all mesh_path objects
710 * @walk_lock: lock protecting walk_head
711 * @entries: number of entries in the table
712 */
713 struct mesh_table {
714 struct hlist_head known_gates;
715 spinlock_t gates_lock;
716 struct rhashtable rhead;
717 struct hlist_head walk_head;
718 spinlock_t walk_lock;
719 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
720 };
721
722 /**
723 * struct mesh_tx_cache - mesh fast xmit header cache
724 *
725 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key
726 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects
727 * @walk_lock: lock protecting walk_head and rht
728 */
729 struct mesh_tx_cache {
730 struct rhashtable rht;
731 struct hlist_head walk_head;
732 spinlock_t walk_lock;
733 };
734
735 struct ieee80211_if_mesh {
736 struct timer_list housekeeping_timer;
737 struct timer_list mesh_path_timer;
738 struct timer_list mesh_path_root_timer;
739
740 unsigned long wrkq_flags;
741 unsigned long mbss_changed[64 / BITS_PER_LONG];
742
743 bool userspace_handles_dfs;
744
745 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
746 size_t mesh_id_len;
747 /* Active Path Selection Protocol Identifier */
748 u8 mesh_pp_id;
749 /* Active Path Selection Metric Identifier */
750 u8 mesh_pm_id;
751 /* Congestion Control Mode Identifier */
752 u8 mesh_cc_id;
753 /* Synchronization Protocol Identifier */
754 u8 mesh_sp_id;
755 /* Authentication Protocol Identifier */
756 u8 mesh_auth_id;
757 /* Local mesh Sequence Number */
758 u32 sn;
759 /* Last used PREQ ID */
760 u32 preq_id;
761 atomic_t mpaths;
762 /* Timestamp of last SN update */
763 unsigned long last_sn_update;
764 /* Time when it's ok to send next PERR */
765 unsigned long next_perr;
766 /* Timestamp of last PREQ sent */
767 unsigned long last_preq;
768 struct mesh_rmc *rmc;
769 spinlock_t mesh_preq_queue_lock;
770 struct mesh_preq_queue preq_queue;
771 int preq_queue_len;
772 struct mesh_stats mshstats;
773 struct mesh_config mshcfg;
774 atomic_t estab_plinks;
775 atomic_t mesh_seqnum;
776 bool accepting_plinks;
777 int num_gates;
778 struct beacon_data __rcu *beacon;
779 const u8 *ie;
780 u8 ie_len;
781 enum {
782 IEEE80211_MESH_SEC_NONE = 0x0,
783 IEEE80211_MESH_SEC_AUTHED = 0x1,
784 IEEE80211_MESH_SEC_SECURED = 0x2,
785 } security;
786 bool user_mpm;
787 /* Extensible Synchronization Framework */
788 const struct ieee80211_mesh_sync_ops *sync_ops;
789 s64 sync_offset_clockdrift_max;
790 spinlock_t sync_offset_lock;
791 /* mesh power save */
792 enum nl80211_mesh_power_mode nonpeer_pm;
793 int ps_peers_light_sleep;
794 int ps_peers_deep_sleep;
795 struct ps_data ps;
796 /* Channel Switching Support */
797 struct mesh_csa_settings __rcu *csa;
798 enum {
799 IEEE80211_MESH_CSA_ROLE_NONE,
800 IEEE80211_MESH_CSA_ROLE_INIT,
801 IEEE80211_MESH_CSA_ROLE_REPEATER,
802 } csa_role;
803 u8 chsw_ttl;
804 u16 pre_value;
805
806 /* offset from skb->data while building IE */
807 int meshconf_offset;
808
809 struct mesh_table mesh_paths;
810 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
811 int mesh_paths_generation;
812 int mpp_paths_generation;
813 struct mesh_tx_cache tx_cache;
814 };
815
816 #ifdef CONFIG_MAC80211_MESH
817 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
818 do { (msh)->mshstats.name++; } while (0)
819 #else
820 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
821 do { } while (0)
822 #endif
823
824 /**
825 * enum ieee80211_sub_if_data_flags - virtual interface flags
826 *
827 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
828 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
829 * associated stations and deliver multicast frames both
830 * back to wireless media and to the local net stack.
831 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
832 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
833 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
834 * recovery
835 */
836 enum ieee80211_sub_if_data_flags {
837 IEEE80211_SDATA_ALLMULTI = BIT(0),
838 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
839 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
840 IEEE80211_SDATA_IN_DRIVER = BIT(5),
841 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
842 };
843
844 /**
845 * enum ieee80211_sdata_state_bits - virtual interface state bits
846 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
847 * mirrors netif_running() but is separate for interface type
848 * change handling while the interface is up
849 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
850 * mode, so queues are stopped
851 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
852 * to offchannel, reset when offchannel returns
853 */
854 enum ieee80211_sdata_state_bits {
855 SDATA_STATE_RUNNING,
856 SDATA_STATE_OFFCHANNEL,
857 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
858 };
859
860 /**
861 * enum ieee80211_chanctx_mode - channel context configuration mode
862 *
863 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
864 * multiple interfaces
865 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
866 * only by a single interface. This can be used for example for
867 * non-fixed channel IBSS.
868 */
869 enum ieee80211_chanctx_mode {
870 IEEE80211_CHANCTX_SHARED,
871 IEEE80211_CHANCTX_EXCLUSIVE
872 };
873
874 /**
875 * enum ieee80211_chanctx_replace_state - channel context replacement state
876 *
877 * This is used for channel context in-place reservations that require channel
878 * context switch/swap.
879 *
880 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
881 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
882 * by a (not yet registered) channel context pointed by %replace_ctx.
883 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
884 * replaces an existing channel context pointed to by %replace_ctx.
885 */
886 enum ieee80211_chanctx_replace_state {
887 IEEE80211_CHANCTX_REPLACE_NONE,
888 IEEE80211_CHANCTX_WILL_BE_REPLACED,
889 IEEE80211_CHANCTX_REPLACES_OTHER,
890 };
891
892 struct ieee80211_chanctx {
893 struct list_head list;
894 struct rcu_head rcu_head;
895
896 struct list_head assigned_links;
897 struct list_head reserved_links;
898
899 enum ieee80211_chanctx_replace_state replace_state;
900 struct ieee80211_chanctx *replace_ctx;
901
902 enum ieee80211_chanctx_mode mode;
903 bool driver_present;
904
905 /* temporary data for search algorithm etc. */
906 struct ieee80211_chan_req req;
907
908 bool radar_detected;
909
910 /* MUST be last - ends in a flexible-array member. */
911 struct ieee80211_chanctx_conf conf;
912 };
913
914 struct mac80211_qos_map {
915 struct cfg80211_qos_map qos_map;
916 struct rcu_head rcu_head;
917 };
918
919 enum txq_info_flags {
920 IEEE80211_TXQ_STOP,
921 IEEE80211_TXQ_AMPDU,
922 IEEE80211_TXQ_NO_AMSDU,
923 IEEE80211_TXQ_DIRTY,
924 };
925
926 /**
927 * struct txq_info - per tid queue
928 *
929 * @tin: contains packets split into multiple flows
930 * @def_cvars: codel vars for the @tin's default_flow
931 * @cstats: code statistics for this queue
932 * @frags: used to keep fragments created after dequeue
933 * @schedule_order: used with ieee80211_local->active_txqs
934 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
935 * @flags: TXQ flags from &enum txq_info_flags
936 * @txq: the driver visible part
937 */
938 struct txq_info {
939 struct fq_tin tin;
940 struct codel_vars def_cvars;
941 struct codel_stats cstats;
942
943 u16 schedule_round;
944 struct list_head schedule_order;
945
946 struct sk_buff_head frags;
947
948 unsigned long flags;
949
950 /* keep last! */
951 struct ieee80211_txq txq;
952 };
953
954 struct ieee80211_if_mntr {
955 u32 flags;
956 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
957
958 struct list_head list;
959 };
960
961 /**
962 * struct ieee80211_if_nan - NAN state
963 *
964 * @conf: current NAN configuration
965 * @func_lock: lock for @func_inst_ids
966 * @function_inst_ids: a bitmap of available instance_id's
967 */
968 struct ieee80211_if_nan {
969 struct cfg80211_nan_conf conf;
970
971 /* protects function_inst_ids */
972 spinlock_t func_lock;
973 struct idr function_inst_ids;
974 };
975
976 struct ieee80211_link_data_managed {
977 u8 bssid[ETH_ALEN] __aligned(2);
978
979 u8 dtim_period;
980 enum ieee80211_smps_mode req_smps, /* requested smps mode */
981 driver_smps_mode; /* smps mode request */
982
983 struct ieee80211_conn_settings conn;
984
985 s16 p2p_noa_index;
986
987 bool tdls_chan_switch_prohibited;
988
989 bool have_beacon;
990 bool tracking_signal_avg;
991 bool disable_wmm_tracking;
992 bool operating_11g_mode;
993
994 struct {
995 struct wiphy_delayed_work switch_work;
996 struct cfg80211_chan_def ap_chandef;
997 struct ieee80211_parsed_tpe tpe;
998 unsigned long time;
999 bool waiting_bcn;
1000 bool ignored_same_chan;
1001 bool blocked_tx;
1002 } csa;
1003
1004 struct wiphy_work request_smps_work;
1005 /* used to reconfigure hardware SM PS */
1006 struct wiphy_work recalc_smps;
1007
1008 bool beacon_crc_valid;
1009 u32 beacon_crc;
1010 struct ewma_beacon_signal ave_beacon_signal;
1011 int last_ave_beacon_signal;
1012
1013 /*
1014 * Number of Beacon frames used in ave_beacon_signal. This can be used
1015 * to avoid generating less reliable cqm events that would be based
1016 * only on couple of received frames.
1017 */
1018 unsigned int count_beacon_signal;
1019
1020 /* Number of times beacon loss was invoked. */
1021 unsigned int beacon_loss_count;
1022
1023 /*
1024 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
1025 * that triggered a cqm event. 0 indicates that no event has been
1026 * generated for the current association.
1027 */
1028 int last_cqm_event_signal;
1029
1030 int wmm_last_param_set;
1031 int mu_edca_last_param_set;
1032 };
1033
1034 struct ieee80211_link_data_ap {
1035 struct beacon_data __rcu *beacon;
1036 struct probe_resp __rcu *probe_resp;
1037 struct fils_discovery_data __rcu *fils_discovery;
1038 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
1039
1040 /* to be used after channel switch. */
1041 struct cfg80211_beacon_data *next_beacon;
1042 };
1043
1044 struct ieee80211_link_data {
1045 struct ieee80211_sub_if_data *sdata;
1046 unsigned int link_id;
1047
1048 struct list_head assigned_chanctx_list; /* protected by wiphy mutex */
1049 struct list_head reserved_chanctx_list; /* protected by wiphy mutex */
1050
1051 /* multicast keys only */
1052 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
1053 NUM_DEFAULT_MGMT_KEYS +
1054 NUM_DEFAULT_BEACON_KEYS];
1055 struct ieee80211_key __rcu *default_multicast_key;
1056 struct ieee80211_key __rcu *default_mgmt_key;
1057 struct ieee80211_key __rcu *default_beacon_key;
1058
1059
1060 bool operating_11g_mode;
1061
1062 struct {
1063 struct wiphy_work finalize_work;
1064 struct ieee80211_chan_req chanreq;
1065 } csa;
1066
1067 struct wiphy_work color_change_finalize_work;
1068 struct wiphy_delayed_work color_collision_detect_work;
1069 u64 color_bitmap;
1070
1071 /* context reservation -- protected with wiphy mutex */
1072 struct ieee80211_chanctx *reserved_chanctx;
1073 struct ieee80211_chan_req reserved;
1074 bool reserved_radar_required;
1075 bool reserved_ready;
1076
1077 u8 needed_rx_chains;
1078 enum ieee80211_smps_mode smps_mode;
1079
1080 int user_power_level; /* in dBm */
1081 int ap_power_level; /* in dBm */
1082
1083 bool radar_required;
1084 struct wiphy_delayed_work dfs_cac_timer_work;
1085
1086 union {
1087 struct ieee80211_link_data_managed mgd;
1088 struct ieee80211_link_data_ap ap;
1089 } u;
1090
1091 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
1092
1093 struct ieee80211_bss_conf *conf;
1094
1095 #ifdef CONFIG_MAC80211_DEBUGFS
1096 struct dentry *debugfs_dir;
1097 #endif
1098 };
1099
1100 struct ieee80211_sub_if_data {
1101 struct list_head list;
1102
1103 struct wireless_dev wdev;
1104
1105 /* keys */
1106 struct list_head key_list;
1107
1108 /* count for keys needing tailroom space allocation */
1109 int crypto_tx_tailroom_needed_cnt;
1110 int crypto_tx_tailroom_pending_dec;
1111 struct wiphy_delayed_work dec_tailroom_needed_wk;
1112
1113 struct net_device *dev;
1114 struct ieee80211_local *local;
1115
1116 unsigned int flags;
1117
1118 unsigned long state;
1119
1120 char name[IFNAMSIZ];
1121
1122 struct ieee80211_fragment_cache frags;
1123
1124 /* TID bitmap for NoAck policy */
1125 u16 noack_map;
1126
1127 /* bit field of ACM bits (BIT(802.1D tag)) */
1128 u8 wmm_acm;
1129
1130 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
1131 struct ieee80211_key __rcu *default_unicast_key;
1132
1133 u16 sequence_number;
1134 u16 mld_mcast_seq;
1135 __be16 control_port_protocol;
1136 bool control_port_no_encrypt;
1137 bool control_port_no_preauth;
1138 bool control_port_over_nl80211;
1139
1140 atomic_t num_tx_queued;
1141 struct mac80211_qos_map __rcu *qos_map;
1142
1143 struct wiphy_work work;
1144 struct sk_buff_head skb_queue;
1145 struct sk_buff_head status_queue;
1146
1147 /*
1148 * AP this belongs to: self in AP mode and
1149 * corresponding AP in VLAN mode, NULL for
1150 * all others (might be needed later in IBSS)
1151 */
1152 struct ieee80211_if_ap *bss;
1153
1154 /* bitmap of allowed (non-MCS) rate indexes for rate control */
1155 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1156
1157 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1158 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1159
1160 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1161 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1162
1163 /* Beacon frame (non-MCS) rate (as a bitmap) */
1164 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1165 bool beacon_rate_set;
1166
1167 union {
1168 struct ieee80211_if_ap ap;
1169 struct ieee80211_if_vlan vlan;
1170 struct ieee80211_if_managed mgd;
1171 struct ieee80211_if_ibss ibss;
1172 struct ieee80211_if_mesh mesh;
1173 struct ieee80211_if_ocb ocb;
1174 struct ieee80211_if_mntr mntr;
1175 struct ieee80211_if_nan nan;
1176 } u;
1177
1178 struct ieee80211_link_data deflink;
1179 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
1180
1181 /* for ieee80211_set_active_links_async() */
1182 struct wiphy_work activate_links_work;
1183 u16 desired_active_links;
1184
1185 u16 restart_active_links;
1186
1187 #ifdef CONFIG_MAC80211_DEBUGFS
1188 struct {
1189 struct dentry *subdir_stations;
1190 struct dentry *default_unicast_key;
1191 struct dentry *default_multicast_key;
1192 struct dentry *default_mgmt_key;
1193 struct dentry *default_beacon_key;
1194 } debugfs;
1195 #endif
1196
1197 /* must be last, dynamically sized area in this! */
1198 struct ieee80211_vif vif;
1199 };
1200
1201 static inline
vif_to_sdata(struct ieee80211_vif * p)1202 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1203 {
1204 return container_of(p, struct ieee80211_sub_if_data, vif);
1205 }
1206
1207 #define sdata_dereference(p, sdata) \
1208 wiphy_dereference(sdata->local->hw.wiphy, p)
1209
1210 #define for_each_sdata_link(_local, _link) \
1211 /* outer loop just to define the variables ... */ \
1212 for (struct ieee80211_sub_if_data *___sdata = NULL; \
1213 !___sdata; \
1214 ___sdata = (void *)~0 /* always stop */) \
1215 list_for_each_entry(___sdata, &(_local)->interfaces, list) \
1216 if (ieee80211_sdata_running(___sdata)) \
1217 for (int ___link_id = 0; \
1218 ___link_id < ARRAY_SIZE(___sdata->link); \
1219 ___link_id++) \
1220 if ((_link = wiphy_dereference((_local)->hw.wiphy, \
1221 ___sdata->link[___link_id])))
1222
1223 static inline int
ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems * elems,struct cfg80211_rnr_elems * rnr_elems,u8 i)1224 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
1225 struct cfg80211_rnr_elems *rnr_elems,
1226 u8 i)
1227 {
1228 int len = 0;
1229
1230 if (!elems || !elems->cnt || i > elems->cnt)
1231 return 0;
1232
1233 if (i < elems->cnt) {
1234 len = elems->elem[i].len;
1235 if (rnr_elems) {
1236 len += rnr_elems->elem[i].len;
1237 for (i = elems->cnt; i < rnr_elems->cnt; i++)
1238 len += rnr_elems->elem[i].len;
1239 }
1240 return len;
1241 }
1242
1243 /* i == elems->cnt, calculate total length of all MBSSID elements */
1244 for (i = 0; i < elems->cnt; i++)
1245 len += elems->elem[i].len;
1246
1247 if (rnr_elems) {
1248 for (i = 0; i < rnr_elems->cnt; i++)
1249 len += rnr_elems->elem[i].len;
1250 }
1251
1252 return len;
1253 }
1254
1255 enum {
1256 IEEE80211_RX_MSG = 1,
1257 IEEE80211_TX_STATUS_MSG = 2,
1258 };
1259
1260 enum queue_stop_reason {
1261 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1262 IEEE80211_QUEUE_STOP_REASON_PS,
1263 IEEE80211_QUEUE_STOP_REASON_CSA,
1264 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1265 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1266 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1267 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1268 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1269 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1270 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1271 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1272
1273 IEEE80211_QUEUE_STOP_REASONS,
1274 };
1275
1276 #ifdef CONFIG_MAC80211_LEDS
1277 struct tpt_led_trigger {
1278 char name[32];
1279 const struct ieee80211_tpt_blink *blink_table;
1280 unsigned int blink_table_len;
1281 struct timer_list timer;
1282 struct ieee80211_local *local;
1283 unsigned long prev_traffic;
1284 unsigned long tx_bytes, rx_bytes;
1285 unsigned int active, want;
1286 bool running;
1287 };
1288 #endif
1289
1290 /**
1291 * enum mac80211_scan_flags - currently active scan mode
1292 *
1293 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1294 * well be on the operating channel
1295 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1296 * determine if we are on the operating channel or not
1297 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1298 * channel. This should not interrupt normal traffic.
1299 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1300 * that the scan completed.
1301 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1302 * a scan complete for an aborted scan.
1303 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1304 * cancelled.
1305 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1306 * and could send a probe request after receiving a beacon.
1307 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1308 */
1309 enum mac80211_scan_flags {
1310 SCAN_SW_SCANNING,
1311 SCAN_HW_SCANNING,
1312 SCAN_ONCHANNEL_SCANNING,
1313 SCAN_COMPLETED,
1314 SCAN_ABORTED,
1315 SCAN_HW_CANCELLED,
1316 SCAN_BEACON_WAIT,
1317 SCAN_BEACON_DONE,
1318 };
1319
1320 /**
1321 * enum mac80211_scan_state - scan state machine states
1322 *
1323 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1324 * determines if we should keep on scanning or switch back to the
1325 * operating channel
1326 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1327 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1328 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1329 * send out data
1330 * @SCAN_RESUME: Resume the scan and scan the next channel
1331 * @SCAN_ABORT: Abort the scan and go back to operating channel
1332 */
1333 enum mac80211_scan_state {
1334 SCAN_DECISION,
1335 SCAN_SET_CHANNEL,
1336 SCAN_SEND_PROBE,
1337 SCAN_SUSPEND,
1338 SCAN_RESUME,
1339 SCAN_ABORT,
1340 };
1341
1342 DECLARE_STATIC_KEY_FALSE(aql_disable);
1343
1344 struct ieee80211_local {
1345 /* embed the driver visible part.
1346 * don't cast (use the static inlines below), but we keep
1347 * it first anyway so they become a no-op */
1348 struct ieee80211_hw hw;
1349
1350 struct fq fq;
1351 struct codel_vars *cvars;
1352 struct codel_params cparams;
1353
1354 /* protects active_txqs and txqi->schedule_order */
1355 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1356 struct list_head active_txqs[IEEE80211_NUM_ACS];
1357 u16 schedule_round[IEEE80211_NUM_ACS];
1358
1359 /* serializes ieee80211_handle_wake_tx_queue */
1360 spinlock_t handle_wake_tx_queue_lock;
1361
1362 u16 airtime_flags;
1363 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1364 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1365 u32 aql_threshold;
1366 atomic_t aql_total_pending_airtime;
1367 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
1368
1369 const struct ieee80211_ops *ops;
1370
1371 /*
1372 * private workqueue to mac80211. mac80211 makes this accessible
1373 * via ieee80211_queue_work()
1374 */
1375 struct workqueue_struct *workqueue;
1376
1377 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1378 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1379 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1380 spinlock_t queue_stop_reason_lock;
1381
1382 int open_count;
1383 int monitors, cooked_mntrs, tx_mntrs;
1384 /* number of interfaces with corresponding FIF_ flags */
1385 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1386 fif_probe_req;
1387 bool probe_req_reg;
1388 bool rx_mcast_action_reg;
1389 unsigned int filter_flags; /* FIF_* */
1390
1391 bool wiphy_ciphers_allocated;
1392
1393 struct cfg80211_chan_def dflt_chandef;
1394 bool emulate_chanctx;
1395
1396 /* protects the aggregated multicast list and filter calls */
1397 spinlock_t filter_lock;
1398
1399 /* used for uploading changed mc list */
1400 struct wiphy_work reconfig_filter;
1401
1402 /* aggregated multicast list */
1403 struct netdev_hw_addr_list mc_list;
1404
1405 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1406
1407 /*
1408 * suspended is true if we finished all the suspend _and_ we have
1409 * not yet come up from resume. This is to be used by mac80211
1410 * to ensure driver sanity during suspend and mac80211's own
1411 * sanity. It can eventually be used for WoW as well.
1412 */
1413 bool suspended;
1414
1415 /* suspending is true during the whole suspend process */
1416 bool suspending;
1417
1418 /*
1419 * Resuming is true while suspended, but when we're reprogramming the
1420 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1421 * again even though some other parts of the stack are still suspended
1422 * and we still drop received frames to avoid waking the stack.
1423 */
1424 bool resuming;
1425
1426 /*
1427 * quiescing is true during the suspend process _only_ to
1428 * ease timer cancelling etc.
1429 */
1430 bool quiescing;
1431
1432 /* device is started */
1433 bool started;
1434
1435 /* device is during a HW reconfig */
1436 bool in_reconfig;
1437
1438 /* reconfiguration failed ... suppress some warnings etc. */
1439 bool reconfig_failure;
1440
1441 /* wowlan is enabled -- don't reconfig on resume */
1442 bool wowlan;
1443
1444 struct wiphy_work radar_detected_work;
1445
1446 /* number of RX chains the hardware has */
1447 u8 rx_chains;
1448
1449 /* bitmap of which sbands were copied */
1450 u8 sband_allocated;
1451
1452 int tx_headroom; /* required headroom for hardware/radiotap */
1453
1454 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1455 * added to skb_queue will be processed, but frames in
1456 * skb_queue_unreliable may be dropped if the total length of these
1457 * queues increases over the limit. */
1458 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1459 struct tasklet_struct tasklet;
1460 struct sk_buff_head skb_queue;
1461 struct sk_buff_head skb_queue_unreliable;
1462
1463 spinlock_t rx_path_lock;
1464
1465 /* Station data */
1466 /*
1467 * The list, hash table and counter are protected
1468 * by the wiphy mutex, reads are done with RCU.
1469 */
1470 spinlock_t tim_lock;
1471 unsigned long num_sta;
1472 struct list_head sta_list;
1473 struct rhltable sta_hash;
1474 struct rhltable link_sta_hash;
1475 struct timer_list sta_cleanup;
1476 int sta_generation;
1477
1478 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1479 struct tasklet_struct tx_pending_tasklet;
1480 struct tasklet_struct wake_txqs_tasklet;
1481
1482 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1483
1484 /* number of interfaces with allmulti RX */
1485 atomic_t iff_allmultis;
1486
1487 struct rate_control_ref *rate_ctrl;
1488
1489 struct arc4_ctx wep_tx_ctx;
1490 struct arc4_ctx wep_rx_ctx;
1491 u32 wep_iv;
1492
1493 /* see iface.c */
1494 struct list_head interfaces;
1495 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1496 struct mutex iflist_mtx;
1497
1498 /* Scanning and BSS list */
1499 unsigned long scanning;
1500 struct cfg80211_ssid scan_ssid;
1501 struct cfg80211_scan_request *int_scan_req;
1502 struct cfg80211_scan_request __rcu *scan_req;
1503 struct ieee80211_scan_request *hw_scan_req;
1504 struct cfg80211_chan_def scan_chandef;
1505 enum nl80211_band hw_scan_band;
1506 int scan_channel_idx;
1507 int scan_ies_len;
1508 int hw_scan_ies_bufsize;
1509 struct cfg80211_scan_info scan_info;
1510
1511 struct wiphy_work sched_scan_stopped_work;
1512 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1513 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1514 u8 scan_addr[ETH_ALEN];
1515
1516 unsigned long leave_oper_channel_time;
1517 enum mac80211_scan_state next_scan_state;
1518 struct wiphy_delayed_work scan_work;
1519 struct ieee80211_sub_if_data __rcu *scan_sdata;
1520
1521 /* Temporary remain-on-channel for off-channel operations */
1522 struct ieee80211_channel *tmp_channel;
1523
1524 /* channel contexts */
1525 struct list_head chanctx_list;
1526
1527 #ifdef CONFIG_MAC80211_LEDS
1528 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1529 struct led_trigger tpt_led;
1530 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1531 atomic_t radio_led_active, tpt_led_active;
1532 struct tpt_led_trigger *tpt_led_trigger;
1533 #endif
1534
1535 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1536 /* SNMP counters */
1537 /* dot11CountersTable */
1538 u32 dot11TransmittedFragmentCount;
1539 u32 dot11MulticastTransmittedFrameCount;
1540 u32 dot11FailedCount;
1541 u32 dot11RetryCount;
1542 u32 dot11MultipleRetryCount;
1543 u32 dot11FrameDuplicateCount;
1544 u32 dot11ReceivedFragmentCount;
1545 u32 dot11MulticastReceivedFrameCount;
1546 u32 dot11TransmittedFrameCount;
1547
1548 /* TX/RX handler statistics */
1549 unsigned int tx_handlers_drop;
1550 unsigned int tx_handlers_queued;
1551 unsigned int tx_handlers_drop_wep;
1552 unsigned int tx_handlers_drop_not_assoc;
1553 unsigned int tx_handlers_drop_unauth_port;
1554 unsigned int rx_handlers_drop;
1555 unsigned int rx_handlers_queued;
1556 unsigned int rx_handlers_drop_nullfunc;
1557 unsigned int rx_handlers_drop_defrag;
1558 unsigned int tx_expand_skb_head;
1559 unsigned int tx_expand_skb_head_cloned;
1560 unsigned int rx_expand_skb_head_defrag;
1561 unsigned int rx_handlers_fragments;
1562 unsigned int tx_status_drop;
1563 #define I802_DEBUG_INC(c) (c)++
1564 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1565 #define I802_DEBUG_INC(c) do { } while (0)
1566 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1567
1568
1569 int total_ps_buffered; /* total number of all buffered unicast and
1570 * multicast packets for power saving stations
1571 */
1572
1573 bool pspolling;
1574 /*
1575 * PS can only be enabled when we have exactly one managed
1576 * interface (and monitors) in PS, this then points there.
1577 */
1578 struct ieee80211_sub_if_data *ps_sdata;
1579 struct wiphy_work dynamic_ps_enable_work;
1580 struct wiphy_work dynamic_ps_disable_work;
1581 struct timer_list dynamic_ps_timer;
1582 struct notifier_block ifa_notifier;
1583 struct notifier_block ifa6_notifier;
1584
1585 /*
1586 * The dynamic ps timeout configured from user space via WEXT -
1587 * this will override whatever chosen by mac80211 internally.
1588 */
1589 int dynamic_ps_forced_timeout;
1590
1591 int user_power_level; /* in dBm, for all interfaces */
1592
1593 struct work_struct restart_work;
1594
1595 #ifdef CONFIG_MAC80211_DEBUGFS
1596 struct local_debugfsdentries {
1597 struct dentry *rcdir;
1598 struct dentry *keys;
1599 } debugfs;
1600 bool force_tx_status;
1601 #endif
1602
1603 /*
1604 * Remain-on-channel support
1605 */
1606 struct wiphy_delayed_work roc_work;
1607 struct list_head roc_list;
1608 struct wiphy_work hw_roc_start, hw_roc_done;
1609 unsigned long hw_roc_start_time;
1610 u64 roc_cookie_counter;
1611
1612 struct idr ack_status_frames;
1613 spinlock_t ack_status_lock;
1614
1615 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1616
1617 /* virtual monitor interface */
1618 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1619 struct ieee80211_chan_req monitor_chanreq;
1620
1621 /* extended capabilities provided by mac80211 */
1622 u8 ext_capa[8];
1623
1624 bool wbrf_supported;
1625 };
1626
1627 static inline struct ieee80211_sub_if_data *
IEEE80211_DEV_TO_SUB_IF(const struct net_device * dev)1628 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1629 {
1630 return netdev_priv(dev);
1631 }
1632
1633 static inline struct ieee80211_sub_if_data *
IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev * wdev)1634 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1635 {
1636 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1637 }
1638
1639 static inline struct ieee80211_supported_band *
ieee80211_get_sband(struct ieee80211_sub_if_data * sdata)1640 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1641 {
1642 struct ieee80211_local *local = sdata->local;
1643 struct ieee80211_chanctx_conf *chanctx_conf;
1644 enum nl80211_band band;
1645
1646 WARN_ON(ieee80211_vif_is_mld(&sdata->vif));
1647
1648 rcu_read_lock();
1649 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1650
1651 if (!chanctx_conf) {
1652 rcu_read_unlock();
1653 return NULL;
1654 }
1655
1656 band = chanctx_conf->def.chan->band;
1657 rcu_read_unlock();
1658
1659 return local->hw.wiphy->bands[band];
1660 }
1661
1662 static inline struct ieee80211_supported_band *
ieee80211_get_link_sband(struct ieee80211_link_data * link)1663 ieee80211_get_link_sband(struct ieee80211_link_data *link)
1664 {
1665 struct ieee80211_local *local = link->sdata->local;
1666 struct ieee80211_chanctx_conf *chanctx_conf;
1667 enum nl80211_band band;
1668
1669 rcu_read_lock();
1670 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
1671 if (!chanctx_conf) {
1672 rcu_read_unlock();
1673 return NULL;
1674 }
1675
1676 band = chanctx_conf->def.chan->band;
1677 rcu_read_unlock();
1678
1679 return local->hw.wiphy->bands[band];
1680 }
1681
1682 /* this struct holds the value parsing from channel switch IE */
1683 struct ieee80211_csa_ie {
1684 struct ieee80211_chan_req chanreq;
1685 u8 mode;
1686 u8 count;
1687 u8 ttl;
1688 u16 pre_value;
1689 u16 reason_code;
1690 u32 max_switch_time;
1691 };
1692
1693 enum ieee80211_elems_parse_error {
1694 IEEE80211_PARSE_ERR_INVALID_END = BIT(0),
1695 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1),
1696 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2),
1697 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3),
1698 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4),
1699 };
1700
1701 /* Parsed Information Elements */
1702 struct ieee802_11_elems {
1703 const u8 *ie_start;
1704 size_t total_len;
1705 u32 crc;
1706
1707 /* pointers to IEs */
1708 const struct ieee80211_tdls_lnkie *lnk_id;
1709 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1710 const u8 *ext_capab;
1711 const u8 *ssid;
1712 const u8 *supp_rates;
1713 const u8 *ds_params;
1714 const struct ieee80211_tim_ie *tim;
1715 const u8 *rsn;
1716 const u8 *rsnx;
1717 const u8 *erp_info;
1718 const u8 *ext_supp_rates;
1719 const u8 *wmm_info;
1720 const u8 *wmm_param;
1721 const struct ieee80211_ht_cap *ht_cap_elem;
1722 const struct ieee80211_ht_operation *ht_operation;
1723 const struct ieee80211_vht_cap *vht_cap_elem;
1724 const struct ieee80211_vht_operation *vht_operation;
1725 const struct ieee80211_meshconf_ie *mesh_config;
1726 const u8 *he_cap;
1727 const struct ieee80211_he_operation *he_operation;
1728 const struct ieee80211_he_spr *he_spr;
1729 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1730 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1731 const u8 *uora_element;
1732 const u8 *mesh_id;
1733 const u8 *peering;
1734 const __le16 *awake_window;
1735 const u8 *preq;
1736 const u8 *prep;
1737 const u8 *perr;
1738 const struct ieee80211_rann_ie *rann;
1739 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1740 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1741 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1742 const u8 *max_channel_switch_time;
1743 const u8 *country_elem;
1744 const u8 *pwr_constr_elem;
1745 const u8 *cisco_dtpc_elem;
1746 const struct ieee80211_timeout_interval_ie *timeout_int;
1747 const u8 *opmode_notif;
1748 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1749 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1750 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1751 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1752 const struct ieee80211_bssid_index *bssid_index;
1753 u8 max_bssid_indicator;
1754 u8 dtim_count;
1755 u8 dtim_period;
1756 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1757 const struct ieee80211_s1g_cap *s1g_capab;
1758 const struct ieee80211_s1g_oper_ie *s1g_oper;
1759 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1760 const struct ieee80211_aid_response_ie *aid_resp;
1761 const struct ieee80211_eht_cap_elem *eht_cap;
1762 const struct ieee80211_eht_operation *eht_operation;
1763 const struct ieee80211_multi_link_elem *ml_basic;
1764 const struct ieee80211_multi_link_elem *ml_reconf;
1765 const struct ieee80211_multi_link_elem *ml_epcs;
1766 const struct ieee80211_bandwidth_indication *bandwidth_indication;
1767 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT];
1768
1769 /* not the order in the psd values is per element, not per chandef */
1770 struct ieee80211_parsed_tpe tpe;
1771 struct ieee80211_parsed_tpe csa_tpe;
1772
1773 /* length of them, respectively */
1774 u8 ext_capab_len;
1775 u8 ssid_len;
1776 u8 supp_rates_len;
1777 u8 tim_len;
1778 u8 rsn_len;
1779 u8 rsnx_len;
1780 u8 ext_supp_rates_len;
1781 u8 wmm_info_len;
1782 u8 wmm_param_len;
1783 u8 he_cap_len;
1784 u8 mesh_id_len;
1785 u8 peering_len;
1786 u8 preq_len;
1787 u8 prep_len;
1788 u8 perr_len;
1789 u8 country_elem_len;
1790 u8 bssid_index_len;
1791 u8 eht_cap_len;
1792
1793 /* mult-link element can be de-fragmented and thus u8 is not sufficient */
1794 size_t ml_basic_len;
1795 size_t ml_reconf_len;
1796 size_t ml_epcs_len;
1797
1798 u8 ttlm_num;
1799
1800 /*
1801 * store the per station profile pointer and length in case that the
1802 * parsing also handled Multi-Link element parsing for a specific link
1803 * ID.
1804 */
1805 struct ieee80211_mle_per_sta_profile *prof;
1806 size_t sta_prof_len;
1807
1808 /* whether/which parse error occurred while retrieving these elements */
1809 u8 parse_error;
1810 };
1811
hw_to_local(struct ieee80211_hw * hw)1812 static inline struct ieee80211_local *hw_to_local(
1813 struct ieee80211_hw *hw)
1814 {
1815 return container_of(hw, struct ieee80211_local, hw);
1816 }
1817
to_txq_info(struct ieee80211_txq * txq)1818 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1819 {
1820 return container_of(txq, struct txq_info, txq);
1821 }
1822
txq_has_queue(struct ieee80211_txq * txq)1823 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1824 {
1825 struct txq_info *txqi = to_txq_info(txq);
1826
1827 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1828 }
1829
1830 static inline bool
ieee80211_have_rx_timestamp(struct ieee80211_rx_status * status)1831 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1832 {
1833 return status->flag & RX_FLAG_MACTIME;
1834 }
1835
1836 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1837 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1838
1839 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata);
1840 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata);
1841
1842 /* This function returns the number of multicast stations connected to this
1843 * interface. It returns -1 if that number is not tracked, that is for netdevs
1844 * not in AP or AP_VLAN mode or when using 4addr.
1845 */
1846 static inline int
ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data * sdata)1847 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1848 {
1849 if (sdata->vif.type == NL80211_IFTYPE_AP)
1850 return atomic_read(&sdata->u.ap.num_mcast_sta);
1851 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1852 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1853 return -1;
1854 }
1855
1856 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1857 struct ieee80211_rx_status *status,
1858 unsigned int mpdu_len,
1859 unsigned int mpdu_offset);
1860 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1861 int ieee80211_hw_conf_chan(struct ieee80211_local *local);
1862 void ieee80211_hw_conf_init(struct ieee80211_local *local);
1863 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1864 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1865 u64 changed);
1866 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1867 u64 changed);
1868 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1869 struct ieee80211_link_data *link,
1870 u64 changed);
1871 void ieee80211_configure_filter(struct ieee80211_local *local);
1872 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1873
1874 void ieee80211_handle_queued_frames(struct ieee80211_local *local);
1875
1876 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1877 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1878 u64 *cookie, gfp_t gfp);
1879
1880 void ieee80211_check_fast_rx(struct sta_info *sta);
1881 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1882 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1883 void ieee80211_clear_fast_rx(struct sta_info *sta);
1884
1885 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
1886 const u8 *addr, int *out_link_id);
1887
1888 /* STA code */
1889 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1890 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1891 struct cfg80211_auth_request *req);
1892 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1893 struct cfg80211_assoc_request *req);
1894 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1895 struct cfg80211_deauth_request *req);
1896 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1897 struct cfg80211_disassoc_request *req);
1898 void ieee80211_send_pspoll(struct ieee80211_local *local,
1899 struct ieee80211_sub_if_data *sdata);
1900 void ieee80211_recalc_ps(struct ieee80211_local *local);
1901 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1902 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1903 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1904 struct sk_buff *skb);
1905 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1906 struct sk_buff *skb);
1907 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1908 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1909 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1910 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1911 __le16 fc, bool acked);
1912 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1913 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1914 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1915 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1916 u8 reason, bool tx);
1917 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
1918 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
1919 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link);
1920
1921 /* IBSS code */
1922 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1923 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1924 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1925 const u8 *bssid, const u8 *addr, u32 supp_rates);
1926 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1927 struct cfg80211_ibss_params *params);
1928 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1929 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1930 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1931 struct sk_buff *skb);
1932 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1933 struct cfg80211_csa_settings *csa_settings,
1934 u64 *changed);
1935 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata,
1936 u64 *changed);
1937 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1938
1939 /* OCB code */
1940 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1941 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1942 const u8 *bssid, const u8 *addr, u32 supp_rates);
1943 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1944 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1945 struct ocb_setup *setup);
1946 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1947
1948 /* mesh code */
1949 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1950 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1951 struct sk_buff *skb);
1952 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1953 struct cfg80211_csa_settings *csa_settings,
1954 u64 *changed);
1955 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
1956 u64 *changed);
1957
1958 /* scan/BSS handling */
1959 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work);
1960 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1961 const u8 *ssid, u8 ssid_len,
1962 struct ieee80211_channel **channels,
1963 unsigned int n_channels);
1964 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1965 struct cfg80211_scan_request *req);
1966 void ieee80211_scan_cancel(struct ieee80211_local *local);
1967 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1968 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1969
1970 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss,
1971 const struct cfg80211_bss_ies *ies, void *data);
1972
1973 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1974 struct ieee80211_bss *
1975 ieee80211_bss_info_update(struct ieee80211_local *local,
1976 struct ieee80211_rx_status *rx_status,
1977 struct ieee80211_mgmt *mgmt,
1978 size_t len,
1979 struct ieee80211_channel *channel);
1980 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1981 struct ieee80211_bss *bss);
1982
1983 /* scheduled scan handling */
1984 int
1985 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1986 struct cfg80211_sched_scan_request *req);
1987 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1988 struct cfg80211_sched_scan_request *req);
1989 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1990 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1991 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy,
1992 struct wiphy_work *work);
1993
1994 /* off-channel/mgmt-tx */
1995 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1996 void ieee80211_offchannel_return(struct ieee80211_local *local);
1997 void ieee80211_roc_setup(struct ieee80211_local *local);
1998 void ieee80211_start_next_roc(struct ieee80211_local *local);
1999 void ieee80211_reconfig_roc(struct ieee80211_local *local);
2000 void ieee80211_roc_purge(struct ieee80211_local *local,
2001 struct ieee80211_sub_if_data *sdata);
2002 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
2003 struct ieee80211_channel *chan,
2004 unsigned int duration, u64 *cookie);
2005 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2006 struct wireless_dev *wdev, u64 cookie);
2007 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2008 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
2009 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2010 struct wireless_dev *wdev, u64 cookie);
2011
2012 /* channel switch handling */
2013 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work);
2014 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2015 struct cfg80211_csa_settings *params);
2016
2017 /* color change handling */
2018 void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
2019 struct wiphy_work *work);
2020 void ieee80211_color_collision_detection_work(struct wiphy *wiphy,
2021 struct wiphy_work *work);
2022
2023 /* interface handling */
2024 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
2025 NETIF_F_HW_CSUM | NETIF_F_SG | \
2026 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
2027 NETIF_F_HW_TC)
2028 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
2029 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
2030 MAC80211_SUPPORTED_FEATURES_RX)
2031
2032 int ieee80211_iface_init(void);
2033 void ieee80211_iface_exit(void);
2034 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
2035 unsigned char name_assign_type,
2036 struct wireless_dev **new_wdev, enum nl80211_iftype type,
2037 struct vif_params *params);
2038 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
2039 enum nl80211_iftype type);
2040 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
2041 void ieee80211_remove_interfaces(struct ieee80211_local *local);
2042 u32 ieee80211_idle_off(struct ieee80211_local *local);
2043 void ieee80211_recalc_idle(struct ieee80211_local *local);
2044 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
2045 const int offset);
2046 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
2047 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
2048 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
2049 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
2050
2051 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link);
2052 void ieee80211_recalc_txpower(struct ieee80211_link_data *link,
2053 bool update_bss);
2054 void ieee80211_recalc_offload(struct ieee80211_local *local);
2055
ieee80211_sdata_running(struct ieee80211_sub_if_data * sdata)2056 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
2057 {
2058 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
2059 }
2060
2061 /* link handling */
2062 void ieee80211_link_setup(struct ieee80211_link_data *link);
2063 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
2064 int link_id,
2065 struct ieee80211_link_data *link,
2066 struct ieee80211_bss_conf *link_conf);
2067 void ieee80211_link_stop(struct ieee80211_link_data *link);
2068 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2069 u16 new_links, u16 dormant_links);
ieee80211_vif_clear_links(struct ieee80211_sub_if_data * sdata)2070 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata)
2071 {
2072 ieee80211_vif_set_links(sdata, 0, 0);
2073 }
2074
2075 /* tx handling */
2076 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2077 void ieee80211_tx_pending(struct tasklet_struct *t);
2078 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2079 struct net_device *dev);
2080 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2081 struct net_device *dev);
2082 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2083 struct net_device *dev);
2084 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2085 struct net_device *dev,
2086 u32 info_flags,
2087 u32 ctrl_flags,
2088 u64 *cookie);
2089 struct sk_buff *
2090 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2091 struct sk_buff *skb, u32 info_flags);
2092 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2093 int retry_count, bool send_to_cooked,
2094 struct ieee80211_tx_status *status);
2095
2096 void ieee80211_check_fast_xmit(struct sta_info *sta);
2097 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2098 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2099 void ieee80211_clear_fast_xmit(struct sta_info *sta);
2100 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2101 const u8 *buf, size_t len,
2102 const u8 *dest, __be16 proto, bool unencrypted,
2103 int link_id, u64 *cookie);
2104 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2105 const u8 *buf, size_t len);
2106 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
2107 struct sta_info *sta,
2108 struct ieee80211_fast_tx *fast_tx,
2109 struct sk_buff *skb, bool ampdu,
2110 const u8 *da, const u8 *sa);
2111 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
2112 struct sta_info *sta, struct sk_buff *skb);
2113
2114 /* HT */
2115 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2116 struct ieee80211_sta_ht_cap *ht_cap);
2117 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2118 struct ieee80211_supported_band *sband,
2119 const struct ieee80211_ht_cap *ht_cap_ie,
2120 struct link_sta_info *link_sta);
2121 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2122 const u8 *da, u16 tid,
2123 u16 initiator, u16 reason_code);
2124 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2125 enum ieee80211_smps_mode smps, const u8 *da,
2126 const u8 *bssid, int link_id);
2127 void ieee80211_add_addbaext(struct sk_buff *skb,
2128 const u8 req_addba_ext_data,
2129 u16 buf_size);
2130 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta,
2131 const void *elem_data, ssize_t elem_len,
2132 u16 *buf_size);
2133 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2134 u16 initiator, u16 reason, bool stop);
2135 void __ieee80211_start_rx_ba_session(struct sta_info *sta,
2136 u8 dialog_token, u16 timeout,
2137 u16 start_seq_num, u16 ba_policy, u16 tid,
2138 u16 buf_size, bool tx, bool auto_seq,
2139 const u8 addba_ext_data);
2140 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2141 enum ieee80211_agg_stop_reason reason);
2142 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2143 struct sta_info *sta,
2144 struct ieee80211_mgmt *mgmt, size_t len);
2145 void ieee80211_process_addba_resp(struct ieee80211_local *local,
2146 struct sta_info *sta,
2147 struct ieee80211_mgmt *mgmt,
2148 size_t len);
2149 void ieee80211_process_addba_request(struct ieee80211_local *local,
2150 struct sta_info *sta,
2151 struct ieee80211_mgmt *mgmt,
2152 size_t len);
2153
2154 static inline struct ieee80211_mgmt *
ieee80211_mgmt_ba(struct sk_buff * skb,const u8 * da,struct ieee80211_sub_if_data * sdata)2155 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da,
2156 struct ieee80211_sub_if_data *sdata)
2157 {
2158 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24);
2159
2160 ether_addr_copy(mgmt->da, da);
2161 ether_addr_copy(mgmt->sa, sdata->vif.addr);
2162
2163 if (sdata->vif.type == NL80211_IFTYPE_AP ||
2164 sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
2165 sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
2166 ether_addr_copy(mgmt->bssid, sdata->vif.addr);
2167 else if (sdata->vif.type == NL80211_IFTYPE_STATION)
2168 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr);
2169 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
2170 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid);
2171
2172 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2173 IEEE80211_STYPE_ACTION);
2174 return mgmt;
2175 }
2176
2177 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2178 enum ieee80211_agg_stop_reason reason);
2179 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2180 struct tid_ampdu_tx *tid_tx);
2181 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2182 struct tid_ampdu_tx *tid_tx);
2183 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work);
2184 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2185 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2186
2187 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2188 enum nl80211_smps_mode
2189 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2190
2191 /* VHT */
2192 void
2193 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2194 struct ieee80211_supported_band *sband,
2195 const struct ieee80211_vht_cap *vht_cap_ie,
2196 const struct ieee80211_vht_cap *vht_cap_ie2,
2197 struct link_sta_info *link_sta);
2198 enum ieee80211_sta_rx_bandwidth
2199 _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta,
2200 struct cfg80211_chan_def *chandef);
2201 static inline enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cap_rx_bw(struct link_sta_info * link_sta)2202 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta)
2203 {
2204 return _ieee80211_sta_cap_rx_bw(link_sta, NULL);
2205 }
2206 enum ieee80211_sta_rx_bandwidth
2207 _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta,
2208 struct cfg80211_chan_def *chandef);
2209 static inline enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cur_vht_bw(struct link_sta_info * link_sta)2210 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta)
2211 {
2212 return _ieee80211_sta_cur_vht_bw(link_sta, NULL);
2213 }
2214 void ieee80211_sta_init_nss(struct link_sta_info *link_sta);
2215 enum nl80211_chan_width
2216 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
2217 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2218 struct ieee80211_link_data *link,
2219 struct ieee80211_mgmt *mgmt);
2220 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2221 struct link_sta_info *sta,
2222 u8 opmode, enum nl80211_band band);
2223 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2224 struct link_sta_info *sta,
2225 u8 opmode, enum nl80211_band band);
2226 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2227 struct ieee80211_sta_vht_cap *vht_cap);
2228 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2229 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2230 enum nl80211_chan_width
2231 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
2232
2233 /* HE */
2234 void
2235 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2236 struct ieee80211_supported_band *sband,
2237 const u8 *he_cap_ie, u8 he_cap_len,
2238 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2239 struct link_sta_info *link_sta);
2240 void
2241 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2242 const struct ieee80211_he_spr *he_spr_ie_elem);
2243
2244 void
2245 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2246 const struct ieee80211_he_operation *he_op_ie_elem);
2247
2248 /* S1G */
2249 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2250 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2251 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2252 struct sk_buff *skb);
2253 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2254 struct sk_buff *skb);
2255
2256 /* Spectrum management */
2257 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2258 struct ieee80211_mgmt *mgmt,
2259 size_t len);
2260 /**
2261 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2262 * @sdata: the sdata of the interface which has received the frame
2263 * @elems: parsed 802.11 elements received with the frame
2264 * @current_band: indicates the current band
2265 * @vht_cap_info: VHT capabilities of the transmitter
2266 * @conn: contains information about own capabilities and restrictions
2267 * to decide which channel switch announcements can be accepted
2268 * @bssid: the currently connected bssid (for reporting)
2269 * @unprot_action: whether the frame was an unprotected frame or not,
2270 * used for reporting
2271 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2272 * All of them will be filled with if success only.
2273 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2274 */
2275 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2276 struct ieee802_11_elems *elems,
2277 enum nl80211_band current_band,
2278 u32 vht_cap_info,
2279 struct ieee80211_conn_settings *conn,
2280 u8 *bssid, bool unprot_action,
2281 struct ieee80211_csa_ie *csa_ie);
2282
2283 /* Suspend/resume and hw reconfiguration */
2284 int ieee80211_reconfig(struct ieee80211_local *local);
2285 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend);
2286
2287 int __ieee80211_suspend(struct ieee80211_hw *hw,
2288 struct cfg80211_wowlan *wowlan);
2289
__ieee80211_resume(struct ieee80211_hw * hw)2290 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2291 {
2292 struct ieee80211_local *local = hw_to_local(hw);
2293
2294 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2295 !test_bit(SCAN_COMPLETED, &local->scanning),
2296 "%s: resume with hardware scan still in progress\n",
2297 wiphy_name(hw->wiphy));
2298
2299 return ieee80211_reconfig(hw_to_local(hw));
2300 }
2301
2302 /* utility functions/constants */
2303 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2304 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode);
2305 enum ieee80211_conn_bw_limit
2306 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef);
2307 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2308 int rate, int erp, int short_preamble);
2309 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2310 struct ieee80211_tx_queue_params *qparam,
2311 int ac);
2312 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe);
2313 void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
2314 bool bss_notify, bool enable_qos);
2315 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2316 struct sta_info *sta, struct sk_buff *skb);
2317
2318 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2319 struct sk_buff *skb, int tid, int link_id,
2320 enum nl80211_band band);
2321
2322 /* sta_out needs to be checked for ERR_PTR() before using */
2323 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2324 struct sk_buff *skb,
2325 struct sta_info **sta_out);
2326
2327 static inline void
ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data * sdata,struct sk_buff * skb,int tid,enum nl80211_band band)2328 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2329 struct sk_buff *skb, int tid,
2330 enum nl80211_band band)
2331 {
2332 rcu_read_lock();
2333 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band);
2334 rcu_read_unlock();
2335 }
2336
2337 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2338 struct sk_buff *skb, int tid, int link_id);
2339
ieee80211_tx_skb(struct ieee80211_sub_if_data * sdata,struct sk_buff * skb)2340 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2341 struct sk_buff *skb)
2342 {
2343 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2344 ieee80211_tx_skb_tid(sdata, skb, 7, -1);
2345 }
2346
2347 /**
2348 * struct ieee80211_elems_parse_params - element parsing parameters
2349 * @mode: connection mode for parsing
2350 * @start: pointer to the elements
2351 * @len: length of the elements
2352 * @action: %true if the elements came from an action frame
2353 * @filter: bitmap of element IDs to filter out while calculating
2354 * the element CRC
2355 * @crc: CRC starting value
2356 * @bss: the BSS to parse this as, for multi-BSSID cases this can
2357 * represent a non-transmitting BSS in which case the data
2358 * for that non-transmitting BSS is returned
2359 * @link_id: the link ID to parse elements for, if a STA profile
2360 * is present in the multi-link element, or -1 to ignore;
2361 * note that the code currently assumes parsing an association
2362 * (or re-association) response frame if this is given
2363 * @from_ap: frame is received from an AP (currently used only
2364 * for EHT capabilities parsing)
2365 */
2366 struct ieee80211_elems_parse_params {
2367 enum ieee80211_conn_mode mode;
2368 const u8 *start;
2369 size_t len;
2370 bool action;
2371 u64 filter;
2372 u32 crc;
2373 struct cfg80211_bss *bss;
2374 int link_id;
2375 bool from_ap;
2376 };
2377
2378 struct ieee802_11_elems *
2379 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
2380
2381 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)2382 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2383 u64 filter, u32 crc,
2384 struct cfg80211_bss *bss)
2385 {
2386 struct ieee80211_elems_parse_params params = {
2387 .mode = IEEE80211_CONN_MODE_HIGHEST,
2388 .start = start,
2389 .len = len,
2390 .action = action,
2391 .filter = filter,
2392 .crc = crc,
2393 .bss = bss,
2394 .link_id = -1,
2395 };
2396
2397 return ieee802_11_parse_elems_full(¶ms);
2398 }
2399
2400 static inline struct ieee802_11_elems *
ieee802_11_parse_elems(const u8 * start,size_t len,bool action,struct cfg80211_bss * bss)2401 ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2402 struct cfg80211_bss *bss)
2403 {
2404 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss);
2405 }
2406
2407 extern const int ieee802_1d_to_ac[8];
2408
ieee80211_ac_from_tid(int tid)2409 static inline int ieee80211_ac_from_tid(int tid)
2410 {
2411 return ieee802_1d_to_ac[tid & 7];
2412 }
2413
2414 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy,
2415 struct wiphy_work *work);
2416 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy,
2417 struct wiphy_work *work);
2418 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2419 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2420 struct ieee80211_sub_if_data *sdata,
2421 bool powersave);
2422 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2423 struct ieee80211_sub_if_data *sdata);
2424 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2425 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2426 unsigned int
2427 ieee80211_get_vif_queues(struct ieee80211_local *local,
2428 struct ieee80211_sub_if_data *sdata);
2429 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2430 unsigned long queues,
2431 enum queue_stop_reason reason,
2432 bool refcounted);
2433 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2434 unsigned long queues,
2435 enum queue_stop_reason reason,
2436 bool refcounted);
2437 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2438 enum queue_stop_reason reason,
2439 bool refcounted);
2440 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2441 enum queue_stop_reason reason,
2442 bool refcounted);
2443 static inline void
ieee80211_stop_vif_queues(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2444 ieee80211_stop_vif_queues(struct ieee80211_local *local,
2445 struct ieee80211_sub_if_data *sdata,
2446 enum queue_stop_reason reason)
2447 {
2448 ieee80211_stop_queues_by_reason(&local->hw,
2449 ieee80211_get_vif_queues(local, sdata),
2450 reason, true);
2451 }
2452
2453 static inline void
ieee80211_wake_vif_queues(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2454 ieee80211_wake_vif_queues(struct ieee80211_local *local,
2455 struct ieee80211_sub_if_data *sdata,
2456 enum queue_stop_reason reason)
2457 {
2458 ieee80211_wake_queues_by_reason(&local->hw,
2459 ieee80211_get_vif_queues(local, sdata),
2460 reason, true);
2461 }
2462 static inline void
ieee80211_stop_vif_queues_norefcount(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2463 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local,
2464 struct ieee80211_sub_if_data *sdata,
2465 enum queue_stop_reason reason)
2466 {
2467 ieee80211_stop_queues_by_reason(&local->hw,
2468 ieee80211_get_vif_queues(local, sdata),
2469 reason, false);
2470 }
2471 static inline void
ieee80211_wake_vif_queues_norefcount(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2472 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local,
2473 struct ieee80211_sub_if_data *sdata,
2474 enum queue_stop_reason reason)
2475 {
2476 ieee80211_wake_queues_by_reason(&local->hw,
2477 ieee80211_get_vif_queues(local, sdata),
2478 reason, false);
2479 }
2480 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2481 struct sk_buff *skb);
2482 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2483 struct sk_buff_head *skbs);
2484 void ieee80211_flush_queues(struct ieee80211_local *local,
2485 struct ieee80211_sub_if_data *sdata, bool drop);
2486 void __ieee80211_flush_queues(struct ieee80211_local *local,
2487 struct ieee80211_sub_if_data *sdata,
2488 unsigned int queues, bool drop);
2489
ieee80211_can_run_worker(struct ieee80211_local * local)2490 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2491 {
2492 /*
2493 * It's unsafe to try to do any work during reconfigure flow.
2494 * When the flow ends the work will be requeued.
2495 */
2496 if (local->in_reconfig)
2497 return false;
2498
2499 /*
2500 * If quiescing is set, we are racing with __ieee80211_suspend.
2501 * __ieee80211_suspend flushes the workers after setting quiescing,
2502 * and we check quiescing / suspended before enqueuing new workers.
2503 * We should abort the worker to avoid the races below.
2504 */
2505 if (local->quiescing)
2506 return false;
2507
2508 /*
2509 * We might already be suspended if the following scenario occurs:
2510 * __ieee80211_suspend Control path
2511 *
2512 * if (local->quiescing)
2513 * return;
2514 * local->quiescing = true;
2515 * flush_workqueue();
2516 * queue_work(...);
2517 * local->suspended = true;
2518 * local->quiescing = false;
2519 * worker starts running...
2520 */
2521 if (local->suspended)
2522 return false;
2523
2524 return true;
2525 }
2526
2527 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2528 void ieee80211_txq_set_params(struct ieee80211_local *local);
2529 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2530 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2531 struct sta_info *sta,
2532 struct txq_info *txq, int tid);
2533 void ieee80211_txq_purge(struct ieee80211_local *local,
2534 struct txq_info *txqi);
2535 void ieee80211_purge_sta_txqs(struct sta_info *sta);
2536 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2537 struct ieee80211_sub_if_data *sdata);
2538 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2539 struct txq_info *txqi);
2540 void ieee80211_wake_txqs(struct tasklet_struct *t);
2541 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2542 u16 transaction, u16 auth_alg, u16 status,
2543 const u8 *extra, size_t extra_len, const u8 *bssid,
2544 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2545 u32 tx_flags);
2546 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2547 const u8 *da, const u8 *bssid,
2548 u16 stype, u16 reason,
2549 bool send_frame, u8 *frame_buf);
2550
2551 enum {
2552 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2553 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2554 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2555 };
2556
2557 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2558 size_t buffer_len,
2559 struct ieee80211_scan_ies *ie_desc,
2560 const u8 *ie, size_t ie_len,
2561 u8 bands_used, u32 *rate_masks,
2562 struct cfg80211_chan_def *chandef,
2563 u32 flags);
2564 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2565 const u8 *src, const u8 *dst,
2566 u32 ratemask,
2567 struct ieee80211_channel *chan,
2568 const u8 *ssid, size_t ssid_len,
2569 const u8 *ie, size_t ie_len,
2570 u32 flags);
2571 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2572 struct ieee802_11_elems *elems,
2573 enum nl80211_band band, u32 *basic_rates);
2574 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2575 struct ieee80211_link_data *link,
2576 enum ieee80211_smps_mode smps_mode);
2577 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2578 struct ieee80211_link_data *link);
2579 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2580 int link_id);
2581
2582 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2583 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2584 u16 cap);
2585 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2586 const struct cfg80211_chan_def *chandef,
2587 u16 prot_mode, bool rifs_mode);
2588 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2589 const struct cfg80211_chan_def *chandef);
2590 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2591 u32 cap);
2592 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2593 const struct cfg80211_chan_def *chandef);
2594 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata);
2595 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef);
2596 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef,
2597 const struct ieee80211_sta_eht_cap *eht_cap);
2598 int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2599 const struct ieee80211_supported_band *sband,
2600 const u8 *srates, int srates_len, u32 *rates);
2601 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2602 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2603 struct ieee80211_sta_s1g_cap *caps,
2604 struct sk_buff *skb);
2605 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2606 struct sk_buff *skb);
2607
2608 /* element building in SKBs */
2609 int ieee80211_put_srates_elem(struct sk_buff *skb,
2610 const struct ieee80211_supported_band *sband,
2611 u32 basic_rates, u32 rate_flags, u32 masked_rates,
2612 u8 element_id);
2613 int ieee80211_put_he_cap(struct sk_buff *skb,
2614 struct ieee80211_sub_if_data *sdata,
2615 const struct ieee80211_supported_band *sband,
2616 const struct ieee80211_conn_settings *conn);
2617 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb,
2618 struct ieee80211_sub_if_data *sdata,
2619 enum ieee80211_smps_mode smps_mode);
2620 int ieee80211_put_eht_cap(struct sk_buff *skb,
2621 struct ieee80211_sub_if_data *sdata,
2622 const struct ieee80211_supported_band *sband,
2623 const struct ieee80211_conn_settings *conn);
2624
2625 /* channel management */
2626 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2627 struct cfg80211_chan_def *chandef);
2628 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2629 const struct ieee80211_vht_operation *oper,
2630 const struct ieee80211_ht_operation *htop,
2631 struct cfg80211_chan_def *chandef);
2632 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info,
2633 struct cfg80211_chan_def *chandef);
2634 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local,
2635 const struct ieee80211_he_operation *he_oper,
2636 const struct ieee80211_eht_operation *eht_oper,
2637 struct cfg80211_chan_def *chandef);
2638 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2639 struct cfg80211_chan_def *chandef);
2640 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef,
2641 struct ieee80211_conn_settings *conn);
2642 static inline void
ieee80211_chanreq_downgrade(struct ieee80211_chan_req * chanreq,struct ieee80211_conn_settings * conn)2643 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq,
2644 struct ieee80211_conn_settings *conn)
2645 {
2646 ieee80211_chandef_downgrade(&chanreq->oper, conn);
2647 if (WARN_ON(!conn))
2648 return;
2649 if (conn->mode < IEEE80211_CONN_MODE_EHT)
2650 chanreq->ap.chan = NULL;
2651 }
2652
2653 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a,
2654 const struct ieee80211_chan_req *b);
2655
2656 int __must_check
2657 _ieee80211_link_use_channel(struct ieee80211_link_data *link,
2658 const struct ieee80211_chan_req *req,
2659 enum ieee80211_chanctx_mode mode,
2660 bool assign_on_failure);
2661
2662 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)2663 ieee80211_link_use_channel(struct ieee80211_link_data *link,
2664 const struct ieee80211_chan_req *req,
2665 enum ieee80211_chanctx_mode mode)
2666 {
2667 return _ieee80211_link_use_channel(link, req, mode, false);
2668 }
2669
2670 int __must_check
2671 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2672 const struct ieee80211_chan_req *req,
2673 enum ieee80211_chanctx_mode mode,
2674 bool radar_required);
2675 int __must_check
2676 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2677 int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2678
2679 int __must_check
2680 ieee80211_link_change_chanreq(struct ieee80211_link_data *link,
2681 const struct ieee80211_chan_req *req,
2682 u64 *changed);
2683 void __ieee80211_link_release_channel(struct ieee80211_link_data *link,
2684 bool skip_idle_recalc);
2685 void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2686 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2687 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2688 bool clear);
2689 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2690 struct ieee80211_chanctx *ctx);
2691
2692 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2693 struct ieee80211_chanctx *chanctx);
2694 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2695 struct ieee80211_chanctx *ctx,
2696 struct ieee80211_link_data *rsvd_for,
2697 bool check_reserved);
2698 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2699
2700 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work);
2701 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local,
2702 struct ieee80211_chanctx *chanctx);
2703 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy,
2704 struct wiphy_work *work);
2705 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2706 struct cfg80211_csa_settings *csa_settings);
2707
2708 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2709 struct ieee80211_sub_if_data *sdata);
2710 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2711 const struct cfg80211_chan_def *chandef,
2712 enum ieee80211_chanctx_mode chanmode,
2713 u8 radar_detect, int radio_idx);
2714 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx);
2715 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev);
2716 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2717 struct ieee80211_chanctx *ctx);
2718
2719 /* TDLS */
2720 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2721 const u8 *peer, int link_id,
2722 u8 action_code, u8 dialog_token, u16 status_code,
2723 u32 peer_capability, bool initiator,
2724 const u8 *extra_ies, size_t extra_ies_len);
2725 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2726 const u8 *peer, enum nl80211_tdls_operation oper);
2727 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk);
2728 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2729 const u8 *addr, u8 oper_class,
2730 struct cfg80211_chan_def *chandef);
2731 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2732 struct net_device *dev,
2733 const u8 *addr);
2734 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link);
2735 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2736 const u8 *peer, u16 reason);
2737 void
2738 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2739 struct sk_buff *skb);
2740
2741
2742 const char *ieee80211_get_reason_code_string(u16 reason_code);
2743 u16 ieee80211_encode_usf(int val);
2744 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2745 enum nl80211_iftype type);
2746
2747 extern const struct ethtool_ops ieee80211_ethtool_ops;
2748
2749 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2750 struct ieee80211_vif *vif,
2751 struct ieee80211_sta *pubsta,
2752 int len, bool ampdu);
2753 #ifdef CONFIG_MAC80211_NOINLINE
2754 #define debug_noinline noinline
2755 #else
2756 #define debug_noinline
2757 #endif
2758
2759 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2760 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2761
2762 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata);
2763
2764 void
2765 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2766 struct ieee80211_supported_band *sband,
2767 const u8 *he_cap_ie, u8 he_cap_len,
2768 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2769 u8 eht_cap_len,
2770 struct link_sta_info *link_sta);
2771 void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata,
2772 struct ieee80211_mgmt *mgmt, size_t len);
2773 void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata,
2774 struct ieee80211_mgmt *mgmt, size_t len);
2775 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata,
2776 struct cfg80211_ttlm_params *params);
2777
2778 void ieee80211_check_wbrf_support(struct ieee80211_local *local);
2779 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2780 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef);
2781
2782 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata,
2783 struct cfg80211_assoc_link *add_links,
2784 u16 rem_links);
2785
2786 void ieee80211_process_ml_reconf_resp(struct ieee80211_sub_if_data *sdata,
2787 struct ieee80211_mgmt *mgmt, size_t len);
2788 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST)
2789 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym)
2790 #define VISIBLE_IF_MAC80211_KUNIT
2791 ieee80211_rx_result
2792 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx);
2793 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap,
2794 u8 n_partial_subchans);
2795 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd,
2796 const struct cfg80211_chan_def *ap,
2797 const struct cfg80211_chan_def *used);
2798 #else
2799 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym)
2800 #define VISIBLE_IF_MAC80211_KUNIT static
2801 #endif
2802
2803 #endif /* IEEE80211_I_H */
2804