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Linux 5.7.7
[linux/fpc-iii.git] / net / mac80211 / ieee80211_i.h
blobf8ed4f621f7f85dfb9018c4304f35e48e7b49a5d
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) 2018-2020 Intel Corporation
9 */
10
11 #ifndef IEEE80211_I_H
12 #define IEEE80211_I_H
13
14 #include <linux/kernel.h>
15 #include <linux/device.h>
16 #include <linux/if_ether.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/netdevice.h>
20 #include <linux/skbuff.h>
21 #include <linux/workqueue.h>
22 #include <linux/types.h>
23 #include <linux/spinlock.h>
24 #include <linux/etherdevice.h>
25 #include <linux/leds.h>
26 #include <linux/idr.h>
27 #include <linux/rhashtable.h>
28 #include <net/ieee80211_radiotap.h>
29 #include <net/cfg80211.h>
30 #include <net/mac80211.h>
31 #include <net/fq.h>
32 #include "key.h"
33 #include "sta_info.h"
34 #include "debug.h"
35
36 extern const struct cfg80211_ops mac80211_config_ops;
37
38 struct ieee80211_local;
39
40 /* Maximum number of broadcast/multicast frames to buffer when some of the
41 * associated stations are using power saving. */
42 #define AP_MAX_BC_BUFFER 128
43
44 /* Maximum number of frames buffered to all STAs, including multicast frames.
45 * Note: increasing this limit increases the potential memory requirement. Each
46 * frame can be up to about 2 kB long. */
47 #define TOTAL_MAX_TX_BUFFER 512
48
49 /* Required encryption head and tailroom */
50 #define IEEE80211_ENCRYPT_HEADROOM 8
51 #define IEEE80211_ENCRYPT_TAILROOM 18
52
53 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
54 * reception of at least three fragmented frames. This limit can be increased
55 * by changing this define, at the cost of slower frame reassembly and
56 * increased memory use (about 2 kB of RAM per entry). */
57 #define IEEE80211_FRAGMENT_MAX 4
58
59 /* power level hasn't been configured (or set to automatic) */
60 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
61
62 /*
63 * Some APs experience problems when working with U-APSD. Decreasing the
64 * probability of that happening by using legacy mode for all ACs but VO isn't
65 * enough.
66 *
67 * Cisco 4410N originally forced us to enable VO by default only because it
68 * treated non-VO ACs as legacy.
69 *
70 * However some APs (notably Netgear R7000) silently reclassify packets to
71 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
72 * clients would never see some frames (e.g. ARP responses) or would fetch them
73 * accidentally after a long time.
74 *
75 * It makes little sense to enable u-APSD queues by default because it needs
76 * userspace applications to be aware of it to actually take advantage of the
77 * possible additional powersavings. Implicitly depending on driver autotrigger
78 * frame support doesn't make much sense.
79 */
80 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
81
82 #define IEEE80211_DEFAULT_MAX_SP_LEN \
83 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
84
85 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
86
87 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
88
89 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
90
91 struct ieee80211_fragment_entry {
92 struct sk_buff_head skb_list;
93 unsigned long first_frag_time;
94 u16 seq;
95 u16 extra_len;
96 u16 last_frag;
97 u8 rx_queue;
98 bool check_sequential_pn; /* needed for CCMP/GCMP */
99 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
100 };
101
102
103 struct ieee80211_bss {
104 u32 device_ts_beacon, device_ts_presp;
105
106 bool wmm_used;
107 bool uapsd_supported;
108
109 #define IEEE80211_MAX_SUPP_RATES 32
110 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
111 size_t supp_rates_len;
112 struct ieee80211_rate *beacon_rate;
113
114 /*
115 * During association, we save an ERP value from a probe response so
116 * that we can feed ERP info to the driver when handling the
117 * association completes. these fields probably won't be up-to-date
118 * otherwise, you probably don't want to use them.
119 */
120 bool has_erp_value;
121 u8 erp_value;
122
123 /* Keep track of the corruption of the last beacon/probe response. */
124 u8 corrupt_data;
125
126 /* Keep track of what bits of information we have valid info for. */
127 u8 valid_data;
128 };
129
130 /**
131 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
132 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
133 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
134 *
135 * These are bss flags that are attached to a bss in the
136 * @corrupt_data field of &struct ieee80211_bss.
137 */
138 enum ieee80211_bss_corrupt_data_flags {
139 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
140 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
141 };
142
143 /**
144 * enum ieee80211_valid_data_flags - BSS valid data flags
145 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
146 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
147 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
148 *
149 * These are bss flags that are attached to a bss in the
150 * @valid_data field of &struct ieee80211_bss. They show which parts
151 * of the data structure were received as a result of an un-corrupted
152 * beacon/probe response.
153 */
154 enum ieee80211_bss_valid_data_flags {
155 IEEE80211_BSS_VALID_WMM = BIT(1),
156 IEEE80211_BSS_VALID_RATES = BIT(2),
157 IEEE80211_BSS_VALID_ERP = BIT(3)
158 };
159
160 typedef unsigned __bitwise ieee80211_tx_result;
161 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
162 #define TX_DROP ((__force ieee80211_tx_result) 1u)
163 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
164
165 #define IEEE80211_TX_NO_SEQNO BIT(0)
166 #define IEEE80211_TX_UNICAST BIT(1)
167 #define IEEE80211_TX_PS_BUFFERED BIT(2)
168
169 struct ieee80211_tx_data {
170 struct sk_buff *skb;
171 struct sk_buff_head skbs;
172 struct ieee80211_local *local;
173 struct ieee80211_sub_if_data *sdata;
174 struct sta_info *sta;
175 struct ieee80211_key *key;
176 struct ieee80211_tx_rate rate;
177
178 unsigned int flags;
179 };
180
181
182 typedef unsigned __bitwise ieee80211_rx_result;
183 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
184 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
185 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
186 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
187
188 /**
189 * enum ieee80211_packet_rx_flags - packet RX flags
190 * @IEEE80211_RX_AMSDU: a-MSDU packet
191 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
192 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
193 *
194 * These are per-frame flags that are attached to a frame in the
195 * @rx_flags field of &struct ieee80211_rx_status.
196 */
197 enum ieee80211_packet_rx_flags {
198 IEEE80211_RX_AMSDU = BIT(3),
199 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
200 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
201 };
202
203 /**
204 * enum ieee80211_rx_flags - RX data flags
205 *
206 * @IEEE80211_RX_CMNTR: received on cooked monitor already
207 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
208 * to cfg80211_report_obss_beacon().
209 *
210 * These flags are used across handling multiple interfaces
211 * for a single frame.
212 */
213 enum ieee80211_rx_flags {
214 IEEE80211_RX_CMNTR = BIT(0),
215 IEEE80211_RX_BEACON_REPORTED = BIT(1),
216 };
217
218 struct ieee80211_rx_data {
219 struct napi_struct *napi;
220 struct sk_buff *skb;
221 struct ieee80211_local *local;
222 struct ieee80211_sub_if_data *sdata;
223 struct sta_info *sta;
224 struct ieee80211_key *key;
225
226 unsigned int flags;
227
228 /*
229 * Index into sequence numbers array, 0..16
230 * since the last (16) is used for non-QoS,
231 * will be 16 on non-QoS frames.
232 */
233 int seqno_idx;
234
235 /*
236 * Index into the security IV/PN arrays, 0..16
237 * since the last (16) is used for CCMP-encrypted
238 * management frames, will be set to 16 on mgmt
239 * frames and 0 on non-QoS frames.
240 */
241 int security_idx;
242
243 u32 tkip_iv32;
244 u16 tkip_iv16;
245 };
246
247 struct ieee80211_csa_settings {
248 const u16 *counter_offsets_beacon;
249 const u16 *counter_offsets_presp;
250
251 int n_counter_offsets_beacon;
252 int n_counter_offsets_presp;
253
254 u8 count;
255 };
256
257 struct beacon_data {
258 u8 *head, *tail;
259 int head_len, tail_len;
260 struct ieee80211_meshconf_ie *meshconf;
261 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
262 u8 csa_current_counter;
263 struct rcu_head rcu_head;
264 };
265
266 struct probe_resp {
267 struct rcu_head rcu_head;
268 int len;
269 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
270 u8 data[0];
271 };
272
273 struct ps_data {
274 /* yes, this looks ugly, but guarantees that we can later use
275 * bitmap_empty :)
276 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
277 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
278 __aligned(__alignof__(unsigned long));
279 struct sk_buff_head bc_buf;
280 atomic_t num_sta_ps; /* number of stations in PS mode */
281 int dtim_count;
282 bool dtim_bc_mc;
283 };
284
285 struct ieee80211_if_ap {
286 struct beacon_data __rcu *beacon;
287 struct probe_resp __rcu *probe_resp;
288
289 /* to be used after channel switch. */
290 struct cfg80211_beacon_data *next_beacon;
291 struct list_head vlans; /* write-protected with RTNL and local->mtx */
292
293 struct ps_data ps;
294 atomic_t num_mcast_sta; /* number of stations receiving multicast */
295
296 bool multicast_to_unicast;
297 };
298
299 struct ieee80211_if_wds {
300 struct sta_info *sta;
301 u8 remote_addr[ETH_ALEN];
302 };
303
304 struct ieee80211_if_vlan {
305 struct list_head list; /* write-protected with RTNL and local->mtx */
306
307 /* used for all tx if the VLAN is configured to 4-addr mode */
308 struct sta_info __rcu *sta;
309 atomic_t num_mcast_sta; /* number of stations receiving multicast */
310 };
311
312 struct mesh_stats {
313 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
314 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
315 __u32 fwded_frames; /* Mesh total forwarded frames */
316 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
317 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
318 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
319 };
320
321 #define PREQ_Q_F_START 0x1
322 #define PREQ_Q_F_REFRESH 0x2
323 struct mesh_preq_queue {
324 struct list_head list;
325 u8 dst[ETH_ALEN];
326 u8 flags;
327 };
328
329 struct ieee80211_roc_work {
330 struct list_head list;
331
332 struct ieee80211_sub_if_data *sdata;
333
334 struct ieee80211_channel *chan;
335
336 bool started, abort, hw_begun, notified;
337 bool on_channel;
338
339 unsigned long start_time;
340
341 u32 duration, req_duration;
342 struct sk_buff *frame;
343 u64 cookie, mgmt_tx_cookie;
344 enum ieee80211_roc_type type;
345 };
346
347 /* flags used in struct ieee80211_if_managed.flags */
348 enum ieee80211_sta_flags {
349 IEEE80211_STA_CONNECTION_POLL = BIT(1),
350 IEEE80211_STA_CONTROL_PORT = BIT(2),
351 IEEE80211_STA_DISABLE_HT = BIT(4),
352 IEEE80211_STA_MFP_ENABLED = BIT(6),
353 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
354 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
355 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
356 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
357 IEEE80211_STA_DISABLE_VHT = BIT(11),
358 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
359 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
360 IEEE80211_STA_DISABLE_WMM = BIT(14),
361 IEEE80211_STA_ENABLE_RRM = BIT(15),
362 IEEE80211_STA_DISABLE_HE = BIT(16),
363 };
364
365 struct ieee80211_mgd_auth_data {
366 struct cfg80211_bss *bss;
367 unsigned long timeout;
368 int tries;
369 u16 algorithm, expected_transaction;
370
371 u8 key[WLAN_KEY_LEN_WEP104];
372 u8 key_len, key_idx;
373 bool done;
374 bool peer_confirmed;
375 bool timeout_started;
376
377 u16 sae_trans, sae_status;
378 size_t data_len;
379 u8 data[];
380 };
381
382 struct ieee80211_mgd_assoc_data {
383 struct cfg80211_bss *bss;
384 const u8 *supp_rates;
385
386 unsigned long timeout;
387 int tries;
388
389 u16 capability;
390 u8 prev_bssid[ETH_ALEN];
391 u8 ssid[IEEE80211_MAX_SSID_LEN];
392 u8 ssid_len;
393 u8 supp_rates_len;
394 bool wmm, uapsd;
395 bool need_beacon;
396 bool synced;
397 bool timeout_started;
398
399 u8 ap_ht_param;
400
401 struct ieee80211_vht_cap ap_vht_cap;
402
403 u8 fils_nonces[2 * FILS_NONCE_LEN];
404 u8 fils_kek[FILS_MAX_KEK_LEN];
405 size_t fils_kek_len;
406
407 size_t ie_len;
408 u8 ie[];
409 };
410
411 struct ieee80211_sta_tx_tspec {
412 /* timestamp of the first packet in the time slice */
413 unsigned long time_slice_start;
414
415 u32 admitted_time; /* in usecs, unlike over the air */
416 u8 tsid;
417 s8 up; /* signed to be able to invalidate with -1 during teardown */
418
419 /* consumed TX time in microseconds in the time slice */
420 u32 consumed_tx_time;
421 enum {
422 TX_TSPEC_ACTION_NONE = 0,
423 TX_TSPEC_ACTION_DOWNGRADE,
424 TX_TSPEC_ACTION_STOP_DOWNGRADE,
425 } action;
426 bool downgraded;
427 };
428
429 DECLARE_EWMA(beacon_signal, 4, 4)
430
431 struct ieee80211_if_managed {
432 struct timer_list timer;
433 struct timer_list conn_mon_timer;
434 struct timer_list bcn_mon_timer;
435 struct timer_list chswitch_timer;
436 struct work_struct monitor_work;
437 struct work_struct chswitch_work;
438 struct work_struct beacon_connection_loss_work;
439 struct work_struct csa_connection_drop_work;
440
441 unsigned long beacon_timeout;
442 unsigned long probe_timeout;
443 int probe_send_count;
444 bool nullfunc_failed;
445 bool connection_loss;
446
447 struct cfg80211_bss *associated;
448 struct ieee80211_mgd_auth_data *auth_data;
449 struct ieee80211_mgd_assoc_data *assoc_data;
450
451 u8 bssid[ETH_ALEN] __aligned(2);
452
453 u16 aid;
454
455 bool powersave; /* powersave requested for this iface */
456 bool broken_ap; /* AP is broken -- turn off powersave */
457 bool have_beacon;
458 u8 dtim_period;
459 enum ieee80211_smps_mode req_smps, /* requested smps mode */
460 driver_smps_mode; /* smps mode request */
461
462 struct work_struct request_smps_work;
463
464 unsigned int flags;
465
466 bool csa_waiting_bcn;
467 bool csa_ignored_same_chan;
468
469 bool beacon_crc_valid;
470 u32 beacon_crc;
471
472 bool status_acked;
473 bool status_received;
474 __le16 status_fc;
475
476 enum {
477 IEEE80211_MFP_DISABLED,
478 IEEE80211_MFP_OPTIONAL,
479 IEEE80211_MFP_REQUIRED
480 } mfp; /* management frame protection */
481
482 /*
483 * Bitmask of enabled u-apsd queues,
484 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
485 * to take effect.
486 */
487 unsigned int uapsd_queues;
488
489 /*
490 * Maximum number of buffered frames AP can deliver during a
491 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
492 * Needs a new association to take effect.
493 */
494 unsigned int uapsd_max_sp_len;
495
496 int wmm_last_param_set;
497 int mu_edca_last_param_set;
498
499 u8 use_4addr;
500
501 s16 p2p_noa_index;
502
503 struct ewma_beacon_signal ave_beacon_signal;
504
505 /*
506 * Number of Beacon frames used in ave_beacon_signal. This can be used
507 * to avoid generating less reliable cqm events that would be based
508 * only on couple of received frames.
509 */
510 unsigned int count_beacon_signal;
511
512 /* Number of times beacon loss was invoked. */
513 unsigned int beacon_loss_count;
514
515 /*
516 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
517 * that triggered a cqm event. 0 indicates that no event has been
518 * generated for the current association.
519 */
520 int last_cqm_event_signal;
521
522 /*
523 * State variables for keeping track of RSSI of the AP currently
524 * connected to and informing driver when RSSI has gone
525 * below/above a certain threshold.
526 */
527 int rssi_min_thold, rssi_max_thold;
528 int last_ave_beacon_signal;
529
530 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
531 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
532 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
533 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
534
535 /* TDLS support */
536 u8 tdls_peer[ETH_ALEN] __aligned(2);
537 struct delayed_work tdls_peer_del_work;
538 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
539 struct sk_buff *teardown_skb; /* A copy to send through the AP */
540 spinlock_t teardown_lock; /* To lock changing teardown_skb */
541 bool tdls_chan_switch_prohibited;
542 bool tdls_wider_bw_prohibited;
543
544 /* WMM-AC TSPEC support */
545 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
546 /* Use a separate work struct so that we can do something here
547 * while the sdata->work is flushing the queues, for example.
548 * otherwise, in scenarios where we hardly get any traffic out
549 * on the BE queue, but there's a lot of VO traffic, we might
550 * get stuck in a downgraded situation and flush takes forever.
551 */
552 struct delayed_work tx_tspec_wk;
553
554 /* Information elements from the last transmitted (Re)Association
555 * Request frame.
556 */
557 u8 *assoc_req_ies;
558 size_t assoc_req_ies_len;
559 };
560
561 struct ieee80211_if_ibss {
562 struct timer_list timer;
563 struct work_struct csa_connection_drop_work;
564
565 unsigned long last_scan_completed;
566
567 u32 basic_rates;
568
569 bool fixed_bssid;
570 bool fixed_channel;
571 bool privacy;
572
573 bool control_port;
574 bool userspace_handles_dfs;
575
576 u8 bssid[ETH_ALEN] __aligned(2);
577 u8 ssid[IEEE80211_MAX_SSID_LEN];
578 u8 ssid_len, ie_len;
579 u8 *ie;
580 struct cfg80211_chan_def chandef;
581
582 unsigned long ibss_join_req;
583 /* probe response/beacon for IBSS */
584 struct beacon_data __rcu *presp;
585
586 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
587 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
588
589 spinlock_t incomplete_lock;
590 struct list_head incomplete_stations;
591
592 enum {
593 IEEE80211_IBSS_MLME_SEARCH,
594 IEEE80211_IBSS_MLME_JOINED,
595 } state;
596 };
597
598 /**
599 * struct ieee80211_if_ocb - OCB mode state
600 *
601 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
602 * @wrkq_flags: OCB deferred task action
603 * @incomplete_lock: delayed STA insertion lock
604 * @incomplete_stations: list of STAs waiting for delayed insertion
605 * @joined: indication if the interface is connected to an OCB network
606 */
607 struct ieee80211_if_ocb {
608 struct timer_list housekeeping_timer;
609 unsigned long wrkq_flags;
610
611 spinlock_t incomplete_lock;
612 struct list_head incomplete_stations;
613
614 bool joined;
615 };
616
617 /**
618 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
619 *
620 * these declarations define the interface, which enables
621 * vendor-specific mesh synchronization
622 *
623 */
624 struct ieee802_11_elems;
625 struct ieee80211_mesh_sync_ops {
626 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
627 u16 stype,
628 struct ieee80211_mgmt *mgmt,
629 struct ieee802_11_elems *elems,
630 struct ieee80211_rx_status *rx_status);
631
632 /* should be called with beacon_data under RCU read lock */
633 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
634 struct beacon_data *beacon);
635 /* add other framework functions here */
636 };
637
638 struct mesh_csa_settings {
639 struct rcu_head rcu_head;
640 struct cfg80211_csa_settings settings;
641 };
642
643 struct ieee80211_if_mesh {
644 struct timer_list housekeeping_timer;
645 struct timer_list mesh_path_timer;
646 struct timer_list mesh_path_root_timer;
647
648 unsigned long wrkq_flags;
649 unsigned long mbss_changed;
650
651 bool userspace_handles_dfs;
652
653 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
654 size_t mesh_id_len;
655 /* Active Path Selection Protocol Identifier */
656 u8 mesh_pp_id;
657 /* Active Path Selection Metric Identifier */
658 u8 mesh_pm_id;
659 /* Congestion Control Mode Identifier */
660 u8 mesh_cc_id;
661 /* Synchronization Protocol Identifier */
662 u8 mesh_sp_id;
663 /* Authentication Protocol Identifier */
664 u8 mesh_auth_id;
665 /* Local mesh Sequence Number */
666 u32 sn;
667 /* Last used PREQ ID */
668 u32 preq_id;
669 atomic_t mpaths;
670 /* Timestamp of last SN update */
671 unsigned long last_sn_update;
672 /* Time when it's ok to send next PERR */
673 unsigned long next_perr;
674 /* Timestamp of last PREQ sent */
675 unsigned long last_preq;
676 struct mesh_rmc *rmc;
677 spinlock_t mesh_preq_queue_lock;
678 struct mesh_preq_queue preq_queue;
679 int preq_queue_len;
680 struct mesh_stats mshstats;
681 struct mesh_config mshcfg;
682 atomic_t estab_plinks;
683 u32 mesh_seqnum;
684 bool accepting_plinks;
685 int num_gates;
686 struct beacon_data __rcu *beacon;
687 const u8 *ie;
688 u8 ie_len;
689 enum {
690 IEEE80211_MESH_SEC_NONE = 0x0,
691 IEEE80211_MESH_SEC_AUTHED = 0x1,
692 IEEE80211_MESH_SEC_SECURED = 0x2,
693 } security;
694 bool user_mpm;
695 /* Extensible Synchronization Framework */
696 const struct ieee80211_mesh_sync_ops *sync_ops;
697 s64 sync_offset_clockdrift_max;
698 spinlock_t sync_offset_lock;
699 /* mesh power save */
700 enum nl80211_mesh_power_mode nonpeer_pm;
701 int ps_peers_light_sleep;
702 int ps_peers_deep_sleep;
703 struct ps_data ps;
704 /* Channel Switching Support */
705 struct mesh_csa_settings __rcu *csa;
706 enum {
707 IEEE80211_MESH_CSA_ROLE_NONE,
708 IEEE80211_MESH_CSA_ROLE_INIT,
709 IEEE80211_MESH_CSA_ROLE_REPEATER,
710 } csa_role;
711 u8 chsw_ttl;
712 u16 pre_value;
713
714 /* offset from skb->data while building IE */
715 int meshconf_offset;
716
717 struct mesh_table *mesh_paths;
718 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
719 int mesh_paths_generation;
720 int mpp_paths_generation;
721 };
722
723 #ifdef CONFIG_MAC80211_MESH
724 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
725 do { (msh)->mshstats.name++; } while (0)
726 #else
727 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
728 do { } while (0)
729 #endif
730
731 /**
732 * enum ieee80211_sub_if_data_flags - virtual interface flags
733 *
734 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
735 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
736 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
737 * associated stations and deliver multicast frames both
738 * back to wireless media and to the local net stack.
739 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
740 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
741 */
742 enum ieee80211_sub_if_data_flags {
743 IEEE80211_SDATA_ALLMULTI = BIT(0),
744 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
745 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
746 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
747 IEEE80211_SDATA_IN_DRIVER = BIT(5),
748 };
749
750 /**
751 * enum ieee80211_sdata_state_bits - virtual interface state bits
752 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
753 * mirrors netif_running() but is separate for interface type
754 * change handling while the interface is up
755 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
756 * mode, so queues are stopped
757 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
758 * to offchannel, reset when offchannel returns
759 */
760 enum ieee80211_sdata_state_bits {
761 SDATA_STATE_RUNNING,
762 SDATA_STATE_OFFCHANNEL,
763 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
764 };
765
766 /**
767 * enum ieee80211_chanctx_mode - channel context configuration mode
768 *
769 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
770 * multiple interfaces
771 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
772 * only by a single interface. This can be used for example for
773 * non-fixed channel IBSS.
774 */
775 enum ieee80211_chanctx_mode {
776 IEEE80211_CHANCTX_SHARED,
777 IEEE80211_CHANCTX_EXCLUSIVE
778 };
779
780 /**
781 * enum ieee80211_chanctx_replace_state - channel context replacement state
782 *
783 * This is used for channel context in-place reservations that require channel
784 * context switch/swap.
785 *
786 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
787 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
788 * by a (not yet registered) channel context pointed by %replace_ctx.
789 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
790 * replaces an existing channel context pointed to by %replace_ctx.
791 */
792 enum ieee80211_chanctx_replace_state {
793 IEEE80211_CHANCTX_REPLACE_NONE,
794 IEEE80211_CHANCTX_WILL_BE_REPLACED,
795 IEEE80211_CHANCTX_REPLACES_OTHER,
796 };
797
798 struct ieee80211_chanctx {
799 struct list_head list;
800 struct rcu_head rcu_head;
801
802 struct list_head assigned_vifs;
803 struct list_head reserved_vifs;
804
805 enum ieee80211_chanctx_replace_state replace_state;
806 struct ieee80211_chanctx *replace_ctx;
807
808 enum ieee80211_chanctx_mode mode;
809 bool driver_present;
810
811 struct ieee80211_chanctx_conf conf;
812 };
813
814 struct mac80211_qos_map {
815 struct cfg80211_qos_map qos_map;
816 struct rcu_head rcu_head;
817 };
818
819 enum txq_info_flags {
820 IEEE80211_TXQ_STOP,
821 IEEE80211_TXQ_AMPDU,
822 IEEE80211_TXQ_NO_AMSDU,
823 IEEE80211_TXQ_STOP_NETIF_TX,
824 };
825
826 /**
827 * struct txq_info - per tid queue
828 *
829 * @tin: contains packets split into multiple flows
830 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
831 * a fq_flow which is already owned by a different tin
832 * @def_cvars: codel vars for @def_flow
833 * @frags: used to keep fragments created after dequeue
834 * @schedule_order: used with ieee80211_local->active_txqs
835 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
836 */
837 struct txq_info {
838 struct fq_tin tin;
839 struct fq_flow def_flow;
840 struct codel_vars def_cvars;
841 struct codel_stats cstats;
842 struct sk_buff_head frags;
843 struct list_head schedule_order;
844 u16 schedule_round;
845 unsigned long flags;
846
847 /* keep last! */
848 struct ieee80211_txq txq;
849 };
850
851 struct ieee80211_if_mntr {
852 u32 flags;
853 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
854
855 struct list_head list;
856 };
857
858 /**
859 * struct ieee80211_if_nan - NAN state
860 *
861 * @conf: current NAN configuration
862 * @func_ids: a bitmap of available instance_id's
863 */
864 struct ieee80211_if_nan {
865 struct cfg80211_nan_conf conf;
866
867 /* protects function_inst_ids */
868 spinlock_t func_lock;
869 struct idr function_inst_ids;
870 };
871
872 struct ieee80211_sub_if_data {
873 struct list_head list;
874
875 struct wireless_dev wdev;
876
877 /* keys */
878 struct list_head key_list;
879
880 /* count for keys needing tailroom space allocation */
881 int crypto_tx_tailroom_needed_cnt;
882 int crypto_tx_tailroom_pending_dec;
883 struct delayed_work dec_tailroom_needed_wk;
884
885 struct net_device *dev;
886 struct ieee80211_local *local;
887
888 unsigned int flags;
889
890 unsigned long state;
891
892 char name[IFNAMSIZ];
893
894 /* Fragment table for host-based reassembly */
895 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
896 unsigned int fragment_next;
897
898 /* TID bitmap for NoAck policy */
899 u16 noack_map;
900
901 /* bit field of ACM bits (BIT(802.1D tag)) */
902 u8 wmm_acm;
903
904 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS +
905 NUM_DEFAULT_MGMT_KEYS +
906 NUM_DEFAULT_BEACON_KEYS];
907 struct ieee80211_key __rcu *default_unicast_key;
908 struct ieee80211_key __rcu *default_multicast_key;
909 struct ieee80211_key __rcu *default_mgmt_key;
910 struct ieee80211_key __rcu *default_beacon_key;
911
912 u16 sequence_number;
913 __be16 control_port_protocol;
914 bool control_port_no_encrypt;
915 bool control_port_no_preauth;
916 bool control_port_over_nl80211;
917 int encrypt_headroom;
918
919 atomic_t num_tx_queued;
920 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
921 struct mac80211_qos_map __rcu *qos_map;
922
923 struct work_struct csa_finalize_work;
924 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
925 struct cfg80211_chan_def csa_chandef;
926
927 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
928 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
929
930 /* context reservation -- protected with chanctx_mtx */
931 struct ieee80211_chanctx *reserved_chanctx;
932 struct cfg80211_chan_def reserved_chandef;
933 bool reserved_radar_required;
934 bool reserved_ready;
935
936 /* used to reconfigure hardware SM PS */
937 struct work_struct recalc_smps;
938
939 struct work_struct work;
940 struct sk_buff_head skb_queue;
941
942 u8 needed_rx_chains;
943 enum ieee80211_smps_mode smps_mode;
944
945 int user_power_level; /* in dBm */
946 int ap_power_level; /* in dBm */
947
948 bool radar_required;
949 struct delayed_work dfs_cac_timer_work;
950
951 /*
952 * AP this belongs to: self in AP mode and
953 * corresponding AP in VLAN mode, NULL for
954 * all others (might be needed later in IBSS)
955 */
956 struct ieee80211_if_ap *bss;
957
958 /* bitmap of allowed (non-MCS) rate indexes for rate control */
959 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
960
961 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
962 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
963
964 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
965 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
966
967 union {
968 struct ieee80211_if_ap ap;
969 struct ieee80211_if_wds wds;
970 struct ieee80211_if_vlan vlan;
971 struct ieee80211_if_managed mgd;
972 struct ieee80211_if_ibss ibss;
973 struct ieee80211_if_mesh mesh;
974 struct ieee80211_if_ocb ocb;
975 struct ieee80211_if_mntr mntr;
976 struct ieee80211_if_nan nan;
977 } u;
978
979 #ifdef CONFIG_MAC80211_DEBUGFS
980 struct {
981 struct dentry *subdir_stations;
982 struct dentry *default_unicast_key;
983 struct dentry *default_multicast_key;
984 struct dentry *default_mgmt_key;
985 struct dentry *default_beacon_key;
986 } debugfs;
987 #endif
988
989 bool hw_80211_encap;
990
991 /* must be last, dynamically sized area in this! */
992 struct ieee80211_vif vif;
993 };
994
995 static inline
996 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
997 {
998 return container_of(p, struct ieee80211_sub_if_data, vif);
999 }
1000
1001 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1002 __acquires(&sdata->wdev.mtx)
1003 {
1004 mutex_lock(&sdata->wdev.mtx);
1005 __acquire(&sdata->wdev.mtx);
1006 }
1007
1008 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1009 __releases(&sdata->wdev.mtx)
1010 {
1011 mutex_unlock(&sdata->wdev.mtx);
1012 __release(&sdata->wdev.mtx);
1013 }
1014
1015 #define sdata_dereference(p, sdata) \
1016 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1017
1018 static inline void
1019 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1020 {
1021 lockdep_assert_held(&sdata->wdev.mtx);
1022 }
1023
1024 static inline int
1025 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1026 {
1027 switch (chandef->width) {
1028 case NL80211_CHAN_WIDTH_5:
1029 return 2;
1030 case NL80211_CHAN_WIDTH_10:
1031 return 1;
1032 default:
1033 return 0;
1034 }
1035 }
1036
1037 static inline int
1038 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1039 {
1040 struct ieee80211_chanctx_conf *chanctx_conf;
1041 int shift = 0;
1042
1043 rcu_read_lock();
1044 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1045 if (chanctx_conf)
1046 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1047 rcu_read_unlock();
1048
1049 return shift;
1050 }
1051
1052 enum {
1053 IEEE80211_RX_MSG = 1,
1054 IEEE80211_TX_STATUS_MSG = 2,
1055 };
1056
1057 enum queue_stop_reason {
1058 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1059 IEEE80211_QUEUE_STOP_REASON_PS,
1060 IEEE80211_QUEUE_STOP_REASON_CSA,
1061 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1062 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1063 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1064 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1065 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1066 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1067 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1068
1069 IEEE80211_QUEUE_STOP_REASONS,
1070 };
1071
1072 #ifdef CONFIG_MAC80211_LEDS
1073 struct tpt_led_trigger {
1074 char name[32];
1075 const struct ieee80211_tpt_blink *blink_table;
1076 unsigned int blink_table_len;
1077 struct timer_list timer;
1078 struct ieee80211_local *local;
1079 unsigned long prev_traffic;
1080 unsigned long tx_bytes, rx_bytes;
1081 unsigned int active, want;
1082 bool running;
1083 };
1084 #endif
1085
1086 /**
1087 * mac80211 scan flags - currently active scan mode
1088 *
1089 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1090 * well be on the operating channel
1091 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1092 * determine if we are on the operating channel or not
1093 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1094 * channel. This should not interrupt normal traffic.
1095 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1096 * that the scan completed.
1097 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1098 * a scan complete for an aborted scan.
1099 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1100 * cancelled.
1101 */
1102 enum {
1103 SCAN_SW_SCANNING,
1104 SCAN_HW_SCANNING,
1105 SCAN_ONCHANNEL_SCANNING,
1106 SCAN_COMPLETED,
1107 SCAN_ABORTED,
1108 SCAN_HW_CANCELLED,
1109 };
1110
1111 /**
1112 * enum mac80211_scan_state - scan state machine states
1113 *
1114 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1115 * determines if we should keep on scanning or switch back to the
1116 * operating channel
1117 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1118 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1119 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1120 * send out data
1121 * @SCAN_RESUME: Resume the scan and scan the next channel
1122 * @SCAN_ABORT: Abort the scan and go back to operating channel
1123 */
1124 enum mac80211_scan_state {
1125 SCAN_DECISION,
1126 SCAN_SET_CHANNEL,
1127 SCAN_SEND_PROBE,
1128 SCAN_SUSPEND,
1129 SCAN_RESUME,
1130 SCAN_ABORT,
1131 };
1132
1133 struct ieee80211_local {
1134 /* embed the driver visible part.
1135 * don't cast (use the static inlines below), but we keep
1136 * it first anyway so they become a no-op */
1137 struct ieee80211_hw hw;
1138
1139 struct fq fq;
1140 struct codel_vars *cvars;
1141 struct codel_params cparams;
1142
1143 /* protects active_txqs and txqi->schedule_order */
1144 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1145 struct list_head active_txqs[IEEE80211_NUM_ACS];
1146 u16 schedule_round[IEEE80211_NUM_ACS];
1147
1148 u16 airtime_flags;
1149 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1150 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1151 u32 aql_threshold;
1152 atomic_t aql_total_pending_airtime;
1153
1154 const struct ieee80211_ops *ops;
1155
1156 /*
1157 * private workqueue to mac80211. mac80211 makes this accessible
1158 * via ieee80211_queue_work()
1159 */
1160 struct workqueue_struct *workqueue;
1161
1162 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1163 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1164 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1165 spinlock_t queue_stop_reason_lock;
1166
1167 int open_count;
1168 int monitors, cooked_mntrs;
1169 /* number of interfaces with corresponding FIF_ flags */
1170 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1171 fif_probe_req;
1172 int probe_req_reg;
1173 unsigned int filter_flags; /* FIF_* */
1174
1175 bool wiphy_ciphers_allocated;
1176
1177 bool use_chanctx;
1178
1179 /* protects the aggregated multicast list and filter calls */
1180 spinlock_t filter_lock;
1181
1182 /* used for uploading changed mc list */
1183 struct work_struct reconfig_filter;
1184
1185 /* aggregated multicast list */
1186 struct netdev_hw_addr_list mc_list;
1187
1188 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1189
1190 /*
1191 * suspended is true if we finished all the suspend _and_ we have
1192 * not yet come up from resume. This is to be used by mac80211
1193 * to ensure driver sanity during suspend and mac80211's own
1194 * sanity. It can eventually be used for WoW as well.
1195 */
1196 bool suspended;
1197
1198 /*
1199 * Resuming is true while suspended, but when we're reprogramming the
1200 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1201 * again even though some other parts of the stack are still suspended
1202 * and we still drop received frames to avoid waking the stack.
1203 */
1204 bool resuming;
1205
1206 /*
1207 * quiescing is true during the suspend process _only_ to
1208 * ease timer cancelling etc.
1209 */
1210 bool quiescing;
1211
1212 /* device is started */
1213 bool started;
1214
1215 /* device is during a HW reconfig */
1216 bool in_reconfig;
1217
1218 /* wowlan is enabled -- don't reconfig on resume */
1219 bool wowlan;
1220
1221 struct work_struct radar_detected_work;
1222
1223 /* number of RX chains the hardware has */
1224 u8 rx_chains;
1225
1226 /* bitmap of which sbands were copied */
1227 u8 sband_allocated;
1228
1229 int tx_headroom; /* required headroom for hardware/radiotap */
1230
1231 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1232 * added to skb_queue will be processed, but frames in
1233 * skb_queue_unreliable may be dropped if the total length of these
1234 * queues increases over the limit. */
1235 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1236 struct tasklet_struct tasklet;
1237 struct sk_buff_head skb_queue;
1238 struct sk_buff_head skb_queue_unreliable;
1239
1240 spinlock_t rx_path_lock;
1241
1242 /* Station data */
1243 /*
1244 * The mutex only protects the list, hash table and
1245 * counter, reads are done with RCU.
1246 */
1247 struct mutex sta_mtx;
1248 spinlock_t tim_lock;
1249 unsigned long num_sta;
1250 struct list_head sta_list;
1251 struct rhltable sta_hash;
1252 struct timer_list sta_cleanup;
1253 int sta_generation;
1254
1255 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1256 struct tasklet_struct tx_pending_tasklet;
1257 struct tasklet_struct wake_txqs_tasklet;
1258
1259 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1260
1261 /* number of interfaces with allmulti RX */
1262 atomic_t iff_allmultis;
1263
1264 struct rate_control_ref *rate_ctrl;
1265
1266 struct arc4_ctx wep_tx_ctx;
1267 struct arc4_ctx wep_rx_ctx;
1268 u32 wep_iv;
1269
1270 /* see iface.c */
1271 struct list_head interfaces;
1272 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1273 struct mutex iflist_mtx;
1274
1275 /*
1276 * Key mutex, protects sdata's key_list and sta_info's
1277 * key pointers and ptk_idx (write access, they're RCU.)
1278 */
1279 struct mutex key_mtx;
1280
1281 /* mutex for scan and work locking */
1282 struct mutex mtx;
1283
1284 /* Scanning and BSS list */
1285 unsigned long scanning;
1286 struct cfg80211_ssid scan_ssid;
1287 struct cfg80211_scan_request *int_scan_req;
1288 struct cfg80211_scan_request __rcu *scan_req;
1289 struct ieee80211_scan_request *hw_scan_req;
1290 struct cfg80211_chan_def scan_chandef;
1291 enum nl80211_band hw_scan_band;
1292 int scan_channel_idx;
1293 int scan_ies_len;
1294 int hw_scan_ies_bufsize;
1295 struct cfg80211_scan_info scan_info;
1296
1297 struct work_struct sched_scan_stopped_work;
1298 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1299 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1300 u8 scan_addr[ETH_ALEN];
1301
1302 unsigned long leave_oper_channel_time;
1303 enum mac80211_scan_state next_scan_state;
1304 struct delayed_work scan_work;
1305 struct ieee80211_sub_if_data __rcu *scan_sdata;
1306 /* For backward compatibility only -- do not use */
1307 struct cfg80211_chan_def _oper_chandef;
1308
1309 /* Temporary remain-on-channel for off-channel operations */
1310 struct ieee80211_channel *tmp_channel;
1311
1312 /* channel contexts */
1313 struct list_head chanctx_list;
1314 struct mutex chanctx_mtx;
1315
1316 #ifdef CONFIG_MAC80211_LEDS
1317 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1318 struct led_trigger tpt_led;
1319 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1320 atomic_t radio_led_active, tpt_led_active;
1321 struct tpt_led_trigger *tpt_led_trigger;
1322 #endif
1323
1324 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1325 /* SNMP counters */
1326 /* dot11CountersTable */
1327 u32 dot11TransmittedFragmentCount;
1328 u32 dot11MulticastTransmittedFrameCount;
1329 u32 dot11FailedCount;
1330 u32 dot11RetryCount;
1331 u32 dot11MultipleRetryCount;
1332 u32 dot11FrameDuplicateCount;
1333 u32 dot11ReceivedFragmentCount;
1334 u32 dot11MulticastReceivedFrameCount;
1335 u32 dot11TransmittedFrameCount;
1336
1337 /* TX/RX handler statistics */
1338 unsigned int tx_handlers_drop;
1339 unsigned int tx_handlers_queued;
1340 unsigned int tx_handlers_drop_wep;
1341 unsigned int tx_handlers_drop_not_assoc;
1342 unsigned int tx_handlers_drop_unauth_port;
1343 unsigned int rx_handlers_drop;
1344 unsigned int rx_handlers_queued;
1345 unsigned int rx_handlers_drop_nullfunc;
1346 unsigned int rx_handlers_drop_defrag;
1347 unsigned int tx_expand_skb_head;
1348 unsigned int tx_expand_skb_head_cloned;
1349 unsigned int rx_expand_skb_head_defrag;
1350 unsigned int rx_handlers_fragments;
1351 unsigned int tx_status_drop;
1352 #define I802_DEBUG_INC(c) (c)++
1353 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1354 #define I802_DEBUG_INC(c) do { } while (0)
1355 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1356
1357
1358 int total_ps_buffered; /* total number of all buffered unicast and
1359 * multicast packets for power saving stations
1360 */
1361
1362 bool pspolling;
1363 bool offchannel_ps_enabled;
1364 /*
1365 * PS can only be enabled when we have exactly one managed
1366 * interface (and monitors) in PS, this then points there.
1367 */
1368 struct ieee80211_sub_if_data *ps_sdata;
1369 struct work_struct dynamic_ps_enable_work;
1370 struct work_struct dynamic_ps_disable_work;
1371 struct timer_list dynamic_ps_timer;
1372 struct notifier_block ifa_notifier;
1373 struct notifier_block ifa6_notifier;
1374
1375 /*
1376 * The dynamic ps timeout configured from user space via WEXT -
1377 * this will override whatever chosen by mac80211 internally.
1378 */
1379 int dynamic_ps_forced_timeout;
1380
1381 int user_power_level; /* in dBm, for all interfaces */
1382
1383 enum ieee80211_smps_mode smps_mode;
1384
1385 struct work_struct restart_work;
1386
1387 #ifdef CONFIG_MAC80211_DEBUGFS
1388 struct local_debugfsdentries {
1389 struct dentry *rcdir;
1390 struct dentry *keys;
1391 } debugfs;
1392 bool force_tx_status;
1393 #endif
1394
1395 /*
1396 * Remain-on-channel support
1397 */
1398 struct delayed_work roc_work;
1399 struct list_head roc_list;
1400 struct work_struct hw_roc_start, hw_roc_done;
1401 unsigned long hw_roc_start_time;
1402 u64 roc_cookie_counter;
1403
1404 struct idr ack_status_frames;
1405 spinlock_t ack_status_lock;
1406
1407 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1408
1409 /* virtual monitor interface */
1410 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1411 struct cfg80211_chan_def monitor_chandef;
1412
1413 /* extended capabilities provided by mac80211 */
1414 u8 ext_capa[8];
1415
1416 /* TDLS channel switch */
1417 struct work_struct tdls_chsw_work;
1418 struct sk_buff_head skb_queue_tdls_chsw;
1419 };
1420
1421 static inline struct ieee80211_sub_if_data *
1422 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1423 {
1424 return netdev_priv(dev);
1425 }
1426
1427 static inline struct ieee80211_sub_if_data *
1428 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1429 {
1430 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1431 }
1432
1433 static inline struct ieee80211_supported_band *
1434 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1435 {
1436 struct ieee80211_local *local = sdata->local;
1437 struct ieee80211_chanctx_conf *chanctx_conf;
1438 enum nl80211_band band;
1439
1440 rcu_read_lock();
1441 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1442
1443 if (WARN_ON_ONCE(!chanctx_conf)) {
1444 rcu_read_unlock();
1445 return NULL;
1446 }
1447
1448 band = chanctx_conf->def.chan->band;
1449 rcu_read_unlock();
1450
1451 return local->hw.wiphy->bands[band];
1452 }
1453
1454 /* this struct holds the value parsing from channel switch IE */
1455 struct ieee80211_csa_ie {
1456 struct cfg80211_chan_def chandef;
1457 u8 mode;
1458 u8 count;
1459 u8 ttl;
1460 u16 pre_value;
1461 u16 reason_code;
1462 u32 max_switch_time;
1463 };
1464
1465 /* Parsed Information Elements */
1466 struct ieee802_11_elems {
1467 const u8 *ie_start;
1468 size_t total_len;
1469
1470 /* pointers to IEs */
1471 const struct ieee80211_tdls_lnkie *lnk_id;
1472 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1473 const u8 *ext_capab;
1474 const u8 *ssid;
1475 const u8 *supp_rates;
1476 const u8 *ds_params;
1477 const struct ieee80211_tim_ie *tim;
1478 const u8 *challenge;
1479 const u8 *rsn;
1480 const u8 *rsnx;
1481 const u8 *erp_info;
1482 const u8 *ext_supp_rates;
1483 const u8 *wmm_info;
1484 const u8 *wmm_param;
1485 const struct ieee80211_ht_cap *ht_cap_elem;
1486 const struct ieee80211_ht_operation *ht_operation;
1487 const struct ieee80211_vht_cap *vht_cap_elem;
1488 const struct ieee80211_vht_operation *vht_operation;
1489 const struct ieee80211_meshconf_ie *mesh_config;
1490 const u8 *he_cap;
1491 const struct ieee80211_he_operation *he_operation;
1492 const struct ieee80211_he_spr *he_spr;
1493 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1494 const u8 *uora_element;
1495 const u8 *mesh_id;
1496 const u8 *peering;
1497 const __le16 *awake_window;
1498 const u8 *preq;
1499 const u8 *prep;
1500 const u8 *perr;
1501 const struct ieee80211_rann_ie *rann;
1502 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1503 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1504 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1505 const u8 *max_channel_switch_time;
1506 const u8 *country_elem;
1507 const u8 *pwr_constr_elem;
1508 const u8 *cisco_dtpc_elem;
1509 const struct ieee80211_timeout_interval_ie *timeout_int;
1510 const u8 *opmode_notif;
1511 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1512 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1513 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1514 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1515 const struct ieee80211_bssid_index *bssid_index;
1516 u8 max_bssid_indicator;
1517 u8 dtim_count;
1518 u8 dtim_period;
1519 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1520
1521 /* length of them, respectively */
1522 u8 ext_capab_len;
1523 u8 ssid_len;
1524 u8 supp_rates_len;
1525 u8 tim_len;
1526 u8 challenge_len;
1527 u8 rsn_len;
1528 u8 rsnx_len;
1529 u8 ext_supp_rates_len;
1530 u8 wmm_info_len;
1531 u8 wmm_param_len;
1532 u8 he_cap_len;
1533 u8 mesh_id_len;
1534 u8 peering_len;
1535 u8 preq_len;
1536 u8 prep_len;
1537 u8 perr_len;
1538 u8 country_elem_len;
1539 u8 bssid_index_len;
1540
1541 /* whether a parse error occurred while retrieving these elements */
1542 bool parse_error;
1543 };
1544
1545 static inline struct ieee80211_local *hw_to_local(
1546 struct ieee80211_hw *hw)
1547 {
1548 return container_of(hw, struct ieee80211_local, hw);
1549 }
1550
1551 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1552 {
1553 return container_of(txq, struct txq_info, txq);
1554 }
1555
1556 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1557 {
1558 struct txq_info *txqi = to_txq_info(txq);
1559
1560 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1561 }
1562
1563 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1564 {
1565 return ether_addr_equal(raddr, addr) ||
1566 is_broadcast_ether_addr(raddr);
1567 }
1568
1569 static inline bool
1570 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1571 {
1572 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1573 status->flag & RX_FLAG_MACTIME_END);
1574 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
1575 return true;
1576 /* can't handle non-legacy preamble yet */
1577 if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
1578 status->encoding == RX_ENC_LEGACY)
1579 return true;
1580 return false;
1581 }
1582
1583 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1584 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1585
1586 /* This function returns the number of multicast stations connected to this
1587 * interface. It returns -1 if that number is not tracked, that is for netdevs
1588 * not in AP or AP_VLAN mode or when using 4addr.
1589 */
1590 static inline int
1591 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1592 {
1593 if (sdata->vif.type == NL80211_IFTYPE_AP)
1594 return atomic_read(&sdata->u.ap.num_mcast_sta);
1595 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1596 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1597 return -1;
1598 }
1599
1600 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1601 struct ieee80211_rx_status *status,
1602 unsigned int mpdu_len,
1603 unsigned int mpdu_offset);
1604 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1605 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1606 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1607 u32 changed);
1608 void ieee80211_configure_filter(struct ieee80211_local *local);
1609 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1610
1611 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1612 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1613 u64 *cookie, gfp_t gfp);
1614
1615 void ieee80211_check_fast_rx(struct sta_info *sta);
1616 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1617 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1618 void ieee80211_clear_fast_rx(struct sta_info *sta);
1619
1620 /* STA code */
1621 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1622 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1623 struct cfg80211_auth_request *req);
1624 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1625 struct cfg80211_assoc_request *req);
1626 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1627 struct cfg80211_deauth_request *req);
1628 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1629 struct cfg80211_disassoc_request *req);
1630 void ieee80211_send_pspoll(struct ieee80211_local *local,
1631 struct ieee80211_sub_if_data *sdata);
1632 void ieee80211_recalc_ps(struct ieee80211_local *local);
1633 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1634 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1635 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1636 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1637 struct sk_buff *skb);
1638 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1639 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1640 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1641 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1642 __le16 fc, bool acked);
1643 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1644 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1645 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1646
1647 /* IBSS code */
1648 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1649 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1650 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1651 const u8 *bssid, const u8 *addr, u32 supp_rates);
1652 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1653 struct cfg80211_ibss_params *params);
1654 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1655 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1656 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1657 struct sk_buff *skb);
1658 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1659 struct cfg80211_csa_settings *csa_settings);
1660 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1661 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1662
1663 /* OCB code */
1664 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1665 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1666 const u8 *bssid, const u8 *addr, u32 supp_rates);
1667 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1668 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1669 struct ocb_setup *setup);
1670 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1671
1672 /* mesh code */
1673 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1674 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1675 struct sk_buff *skb);
1676 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1677 struct cfg80211_csa_settings *csa_settings);
1678 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1679
1680 /* scan/BSS handling */
1681 void ieee80211_scan_work(struct work_struct *work);
1682 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1683 const u8 *ssid, u8 ssid_len,
1684 struct ieee80211_channel **channels,
1685 unsigned int n_channels,
1686 enum nl80211_bss_scan_width scan_width);
1687 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1688 struct cfg80211_scan_request *req);
1689 void ieee80211_scan_cancel(struct ieee80211_local *local);
1690 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1691 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1692
1693 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1694 struct ieee80211_bss *
1695 ieee80211_bss_info_update(struct ieee80211_local *local,
1696 struct ieee80211_rx_status *rx_status,
1697 struct ieee80211_mgmt *mgmt,
1698 size_t len,
1699 struct ieee80211_channel *channel);
1700 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1701 struct ieee80211_bss *bss);
1702
1703 /* scheduled scan handling */
1704 int
1705 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1706 struct cfg80211_sched_scan_request *req);
1707 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1708 struct cfg80211_sched_scan_request *req);
1709 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1710 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1711 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1712
1713 /* off-channel/mgmt-tx */
1714 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1715 void ieee80211_offchannel_return(struct ieee80211_local *local);
1716 void ieee80211_roc_setup(struct ieee80211_local *local);
1717 void ieee80211_start_next_roc(struct ieee80211_local *local);
1718 void ieee80211_roc_purge(struct ieee80211_local *local,
1719 struct ieee80211_sub_if_data *sdata);
1720 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1721 struct ieee80211_channel *chan,
1722 unsigned int duration, u64 *cookie);
1723 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1724 struct wireless_dev *wdev, u64 cookie);
1725 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1726 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1727 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1728 struct wireless_dev *wdev, u64 cookie);
1729
1730 /* channel switch handling */
1731 void ieee80211_csa_finalize_work(struct work_struct *work);
1732 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1733 struct cfg80211_csa_settings *params);
1734
1735 /* interface handling */
1736 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1737 NETIF_F_HW_CSUM | NETIF_F_SG | \
1738 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
1739 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1740 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1741 MAC80211_SUPPORTED_FEATURES_RX)
1742
1743 int ieee80211_iface_init(void);
1744 void ieee80211_iface_exit(void);
1745 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1746 unsigned char name_assign_type,
1747 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1748 struct vif_params *params);
1749 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1750 enum nl80211_iftype type);
1751 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1752 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1753 u32 ieee80211_idle_off(struct ieee80211_local *local);
1754 void ieee80211_recalc_idle(struct ieee80211_local *local);
1755 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1756 const int offset);
1757 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1758 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1759 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1760 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1761
1762 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1763 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1764 bool update_bss);
1765
1766 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1767 {
1768 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1769 }
1770
1771 /* tx handling */
1772 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1773 void ieee80211_tx_pending(unsigned long data);
1774 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1775 struct net_device *dev);
1776 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1777 struct net_device *dev);
1778 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
1779 struct net_device *dev);
1780 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1781 struct net_device *dev,
1782 u32 info_flags,
1783 u32 ctrl_flags);
1784 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1785 struct sk_buff_head *skbs);
1786 struct sk_buff *
1787 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1788 struct sk_buff *skb, u32 info_flags);
1789 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1790 struct ieee80211_supported_band *sband,
1791 int retry_count, int shift, bool send_to_cooked,
1792 struct ieee80211_tx_status *status);
1793
1794 void ieee80211_check_fast_xmit(struct sta_info *sta);
1795 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1796 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1797 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1798 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
1799 const u8 *buf, size_t len,
1800 const u8 *dest, __be16 proto, bool unencrypted);
1801 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
1802 const u8 *buf, size_t len);
1803
1804 /* HT */
1805 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1806 struct ieee80211_sta_ht_cap *ht_cap);
1807 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1808 struct ieee80211_supported_band *sband,
1809 const struct ieee80211_ht_cap *ht_cap_ie,
1810 struct sta_info *sta);
1811 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1812 const u8 *da, u16 tid,
1813 u16 initiator, u16 reason_code);
1814 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1815 enum ieee80211_smps_mode smps, const u8 *da,
1816 const u8 *bssid);
1817 void ieee80211_request_smps_ap_work(struct work_struct *work);
1818 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1819 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1820 enum ieee80211_smps_mode smps_mode_new);
1821
1822 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1823 u16 initiator, u16 reason, bool stop);
1824 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1825 u16 initiator, u16 reason, bool stop);
1826 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
1827 u8 dialog_token, u16 timeout,
1828 u16 start_seq_num, u16 ba_policy, u16 tid,
1829 u16 buf_size, bool tx, bool auto_seq,
1830 const struct ieee80211_addba_ext_ie *addbaext);
1831 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1832 enum ieee80211_agg_stop_reason reason);
1833 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1834 struct sta_info *sta,
1835 struct ieee80211_mgmt *mgmt, size_t len);
1836 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1837 struct sta_info *sta,
1838 struct ieee80211_mgmt *mgmt,
1839 size_t len);
1840 void ieee80211_process_addba_request(struct ieee80211_local *local,
1841 struct sta_info *sta,
1842 struct ieee80211_mgmt *mgmt,
1843 size_t len);
1844
1845 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1846 enum ieee80211_agg_stop_reason reason);
1847 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1848 enum ieee80211_agg_stop_reason reason);
1849 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
1850 struct tid_ampdu_tx *tid_tx);
1851 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
1852 struct tid_ampdu_tx *tid_tx);
1853 void ieee80211_ba_session_work(struct work_struct *work);
1854 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1855 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1856
1857 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1858 enum nl80211_smps_mode
1859 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
1860
1861 /* VHT */
1862 void
1863 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1864 struct ieee80211_supported_band *sband,
1865 const struct ieee80211_vht_cap *vht_cap_ie,
1866 struct sta_info *sta);
1867 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1868 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1869 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1870 enum ieee80211_sta_rx_bandwidth
1871 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1872 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1873 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1874 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1875 struct ieee80211_mgmt *mgmt);
1876 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1877 struct sta_info *sta, u8 opmode,
1878 enum nl80211_band band);
1879 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1880 struct sta_info *sta, u8 opmode,
1881 enum nl80211_band band);
1882 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1883 struct ieee80211_sta_vht_cap *vht_cap);
1884 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1885 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1886 enum nl80211_chan_width
1887 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
1888
1889 /* HE */
1890 void
1891 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
1892 struct ieee80211_supported_band *sband,
1893 const u8 *he_cap_ie, u8 he_cap_len,
1894 struct sta_info *sta);
1895 void
1896 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
1897 const struct ieee80211_he_spr *he_spr_ie_elem);
1898
1899 void
1900 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
1901 const struct ieee80211_he_operation *he_op_ie_elem);
1902
1903 /* Spectrum management */
1904 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1905 struct ieee80211_mgmt *mgmt,
1906 size_t len);
1907 /**
1908 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1909 * @sdata: the sdata of the interface which has received the frame
1910 * @elems: parsed 802.11 elements received with the frame
1911 * @current_band: indicates the current band
1912 * @sta_flags: contains information about own capabilities and restrictions
1913 * to decide which channel switch announcements can be accepted. Only the
1914 * following subset of &enum ieee80211_sta_flags are evaluated:
1915 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1916 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1917 * %IEEE80211_STA_DISABLE_160MHZ.
1918 * @bssid: the currently connected bssid (for reporting)
1919 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1920 All of them will be filled with if success only.
1921 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1922 */
1923 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1924 struct ieee802_11_elems *elems,
1925 enum nl80211_band current_band,
1926 u32 sta_flags, u8 *bssid,
1927 struct ieee80211_csa_ie *csa_ie);
1928
1929 /* Suspend/resume and hw reconfiguration */
1930 int ieee80211_reconfig(struct ieee80211_local *local);
1931 void ieee80211_stop_device(struct ieee80211_local *local);
1932
1933 int __ieee80211_suspend(struct ieee80211_hw *hw,
1934 struct cfg80211_wowlan *wowlan);
1935
1936 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1937 {
1938 struct ieee80211_local *local = hw_to_local(hw);
1939
1940 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1941 !test_bit(SCAN_COMPLETED, &local->scanning),
1942 "%s: resume with hardware scan still in progress\n",
1943 wiphy_name(hw->wiphy));
1944
1945 return ieee80211_reconfig(hw_to_local(hw));
1946 }
1947
1948 /* utility functions/constants */
1949 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1950 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
1951 int rate, int erp, int short_preamble,
1952 int shift);
1953 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
1954 struct ieee80211_tx_queue_params *qparam,
1955 int ac);
1956 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1957 bool bss_notify, bool enable_qos);
1958 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1959 struct sta_info *sta, struct sk_buff *skb,
1960 u32 txdata_flags);
1961
1962 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1963 struct sk_buff *skb, int tid,
1964 enum nl80211_band band, u32 txdata_flags);
1965
1966 /* sta_out needs to be checked for ERR_PTR() before using */
1967 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
1968 struct sk_buff *skb,
1969 struct sta_info **sta_out);
1970
1971 static inline void
1972 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1973 struct sk_buff *skb, int tid,
1974 enum nl80211_band band, u32 txdata_flags)
1975 {
1976 rcu_read_lock();
1977 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band, txdata_flags);
1978 rcu_read_unlock();
1979 }
1980
1981 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1982 struct sk_buff *skb, int tid)
1983 {
1984 struct ieee80211_chanctx_conf *chanctx_conf;
1985
1986 rcu_read_lock();
1987 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1988 if (WARN_ON(!chanctx_conf)) {
1989 rcu_read_unlock();
1990 kfree_skb(skb);
1991 return;
1992 }
1993
1994 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1995 chanctx_conf->def.chan->band, 0);
1996 rcu_read_unlock();
1997 }
1998
1999 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2000 struct sk_buff *skb)
2001 {
2002 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2003 ieee80211_tx_skb_tid(sdata, skb, 7);
2004 }
2005
2006 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2007 struct ieee802_11_elems *elems,
2008 u64 filter, u32 crc, u8 *transmitter_bssid,
2009 u8 *bss_bssid);
2010 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
2011 bool action,
2012 struct ieee802_11_elems *elems,
2013 u8 *transmitter_bssid,
2014 u8 *bss_bssid)
2015 {
2016 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0,
2017 transmitter_bssid, bss_bssid);
2018 }
2019
2020
2021 extern const int ieee802_1d_to_ac[8];
2022
2023 static inline int ieee80211_ac_from_tid(int tid)
2024 {
2025 return ieee802_1d_to_ac[tid & 7];
2026 }
2027
2028 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2029 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2030 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2031 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2032 struct ieee80211_sub_if_data *sdata,
2033 bool powersave);
2034 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
2035 struct ieee80211_hdr *hdr);
2036 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2037 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2038
2039 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2040 unsigned long queues,
2041 enum queue_stop_reason reason,
2042 bool refcounted);
2043 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2044 struct ieee80211_sub_if_data *sdata,
2045 enum queue_stop_reason reason);
2046 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2047 struct ieee80211_sub_if_data *sdata,
2048 enum queue_stop_reason reason);
2049 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2050 unsigned long queues,
2051 enum queue_stop_reason reason,
2052 bool refcounted);
2053 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2054 enum queue_stop_reason reason,
2055 bool refcounted);
2056 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2057 enum queue_stop_reason reason,
2058 bool refcounted);
2059 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
2060 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2061 struct sk_buff *skb);
2062 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2063 struct sk_buff_head *skbs);
2064 void ieee80211_flush_queues(struct ieee80211_local *local,
2065 struct ieee80211_sub_if_data *sdata, bool drop);
2066 void __ieee80211_flush_queues(struct ieee80211_local *local,
2067 struct ieee80211_sub_if_data *sdata,
2068 unsigned int queues, bool drop);
2069
2070 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2071 {
2072 /*
2073 * It's unsafe to try to do any work during reconfigure flow.
2074 * When the flow ends the work will be requeued.
2075 */
2076 if (local->in_reconfig)
2077 return false;
2078
2079 /*
2080 * If quiescing is set, we are racing with __ieee80211_suspend.
2081 * __ieee80211_suspend flushes the workers after setting quiescing,
2082 * and we check quiescing / suspended before enqueing new workers.
2083 * We should abort the worker to avoid the races below.
2084 */
2085 if (local->quiescing)
2086 return false;
2087
2088 /*
2089 * We might already be suspended if the following scenario occurs:
2090 * __ieee80211_suspend Control path
2091 *
2092 * if (local->quiescing)
2093 * return;
2094 * local->quiescing = true;
2095 * flush_workqueue();
2096 * queue_work(...);
2097 * local->suspended = true;
2098 * local->quiescing = false;
2099 * worker starts running...
2100 */
2101 if (local->suspended)
2102 return false;
2103
2104 return true;
2105 }
2106
2107 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2108 void ieee80211_txq_set_params(struct ieee80211_local *local);
2109 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2110 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2111 struct sta_info *sta,
2112 struct txq_info *txq, int tid);
2113 void ieee80211_txq_purge(struct ieee80211_local *local,
2114 struct txq_info *txqi);
2115 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2116 struct ieee80211_sub_if_data *sdata);
2117 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2118 struct txq_info *txqi);
2119 void ieee80211_wake_txqs(unsigned long data);
2120 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2121 u16 transaction, u16 auth_alg, u16 status,
2122 const u8 *extra, size_t extra_len, const u8 *bssid,
2123 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2124 u32 tx_flags);
2125 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2126 const u8 *da, const u8 *bssid,
2127 u16 stype, u16 reason,
2128 bool send_frame, u8 *frame_buf);
2129
2130 enum {
2131 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2132 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2133 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2134 };
2135
2136 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
2137 size_t buffer_len,
2138 struct ieee80211_scan_ies *ie_desc,
2139 const u8 *ie, size_t ie_len,
2140 u8 bands_used, u32 *rate_masks,
2141 struct cfg80211_chan_def *chandef,
2142 u32 flags);
2143 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2144 const u8 *src, const u8 *dst,
2145 u32 ratemask,
2146 struct ieee80211_channel *chan,
2147 const u8 *ssid, size_t ssid_len,
2148 const u8 *ie, size_t ie_len,
2149 u32 flags);
2150 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2151 struct ieee802_11_elems *elems,
2152 enum nl80211_band band, u32 *basic_rates);
2153 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2154 enum ieee80211_smps_mode smps_mode);
2155 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2156 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2157
2158 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2159 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2160 u16 cap);
2161 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2162 const struct cfg80211_chan_def *chandef,
2163 u16 prot_mode, bool rifs_mode);
2164 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2165 const struct cfg80211_chan_def *chandef);
2166 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2167 u32 cap);
2168 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2169 const struct cfg80211_chan_def *chandef);
2170 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2171 u8 *ieee80211_ie_build_he_cap(u8 *pos,
2172 const struct ieee80211_sta_he_cap *he_cap,
2173 u8 *end);
2174 u8 *ieee80211_ie_build_he_oper(u8 *pos);
2175 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2176 const struct ieee80211_supported_band *sband,
2177 const u8 *srates, int srates_len, u32 *rates);
2178 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2179 struct sk_buff *skb, bool need_basic,
2180 enum nl80211_band band);
2181 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2182 struct sk_buff *skb, bool need_basic,
2183 enum nl80211_band band);
2184 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2185
2186 /* channel management */
2187 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2188 struct cfg80211_chan_def *chandef);
2189 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw,
2190 const struct ieee80211_vht_operation *oper,
2191 const struct ieee80211_ht_operation *htop,
2192 struct cfg80211_chan_def *chandef);
2193 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2194
2195 int __must_check
2196 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2197 const struct cfg80211_chan_def *chandef,
2198 enum ieee80211_chanctx_mode mode);
2199 int __must_check
2200 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2201 const struct cfg80211_chan_def *chandef,
2202 enum ieee80211_chanctx_mode mode,
2203 bool radar_required);
2204 int __must_check
2205 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2206 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2207
2208 int __must_check
2209 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2210 const struct cfg80211_chan_def *chandef,
2211 u32 *changed);
2212 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2213 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2214 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2215 bool clear);
2216 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2217 struct ieee80211_chanctx *ctx);
2218
2219 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2220 struct ieee80211_chanctx *chanctx);
2221 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2222 struct ieee80211_chanctx *ctx);
2223 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2224
2225 void ieee80211_dfs_cac_timer(unsigned long data);
2226 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2227 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2228 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2229 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2230 struct cfg80211_csa_settings *csa_settings);
2231
2232 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2233 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2234 const struct ieee80211_cipher_scheme *
2235 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2236 enum nl80211_iftype iftype);
2237 int ieee80211_cs_headroom(struct ieee80211_local *local,
2238 struct cfg80211_crypto_settings *crypto,
2239 enum nl80211_iftype iftype);
2240 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2241 struct ieee80211_sub_if_data *sdata);
2242 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2243 const struct cfg80211_chan_def *chandef,
2244 enum ieee80211_chanctx_mode chanmode,
2245 u8 radar_detect);
2246 int ieee80211_max_num_channels(struct ieee80211_local *local);
2247 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2248 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2249 struct ieee80211_chanctx *ctx);
2250
2251 /* TDLS */
2252 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2253 const u8 *peer, u8 action_code, u8 dialog_token,
2254 u16 status_code, u32 peer_capability,
2255 bool initiator, const u8 *extra_ies,
2256 size_t extra_ies_len);
2257 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2258 const u8 *peer, enum nl80211_tdls_operation oper);
2259 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2260 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2261 const u8 *addr, u8 oper_class,
2262 struct cfg80211_chan_def *chandef);
2263 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2264 struct net_device *dev,
2265 const u8 *addr);
2266 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2267 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2268 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2269 const u8 *peer, u16 reason);
2270 const char *ieee80211_get_reason_code_string(u16 reason_code);
2271
2272 extern const struct ethtool_ops ieee80211_ethtool_ops;
2273
2274 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2275 struct ieee80211_vif *vif,
2276 struct ieee80211_sta *pubsta,
2277 int len);
2278 #ifdef CONFIG_MAC80211_NOINLINE
2279 #define debug_noinline noinline
2280 #else
2281 #define debug_noinline
2282 #endif
2283
2284 #endif /* IEEE80211_I_H */
Linux with added FPC-III support