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mac80211: pass station to ieee80211_vht_cap_ie_to_sta_vht_cap
[deliverable/linux.git] / net / mac80211 / ieee80211_i.h
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1/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef IEEE80211_I_H
13#define IEEE80211_I_H
14
15#include <linux/kernel.h>
16#include <linux/device.h>
17#include <linux/if_ether.h>
18#include <linux/interrupt.h>
19#include <linux/list.h>
20#include <linux/netdevice.h>
21#include <linux/skbuff.h>
22#include <linux/workqueue.h>
23#include <linux/types.h>
24#include <linux/spinlock.h>
25#include <linux/etherdevice.h>
26#include <linux/leds.h>
27#include <linux/idr.h>
28#include <net/ieee80211_radiotap.h>
29#include <net/cfg80211.h>
30#include <net/mac80211.h>
31#include "key.h"
32#include "sta_info.h"
33#include "debug.h"
34
35struct ieee80211_local;
36
37/* Maximum number of broadcast/multicast frames to buffer when some of the
38 * associated stations are using power saving. */
39#define AP_MAX_BC_BUFFER 128
40
41/* Maximum number of frames buffered to all STAs, including multicast frames.
42 * Note: increasing this limit increases the potential memory requirement. Each
43 * frame can be up to about 2 kB long. */
44#define TOTAL_MAX_TX_BUFFER 512
45
46/* Required encryption head and tailroom */
47#define IEEE80211_ENCRYPT_HEADROOM 8
48#define IEEE80211_ENCRYPT_TAILROOM 18
49
50/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
51 * reception of at least three fragmented frames. This limit can be increased
52 * by changing this define, at the cost of slower frame reassembly and
53 * increased memory use (about 2 kB of RAM per entry). */
54#define IEEE80211_FRAGMENT_MAX 4
55
56#define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
57#define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
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. Decrease the
64 * probability of that happening by using legacy mode for all ACs but VO.
65 * The AP that caused us trouble was a Cisco 4410N. It ignores our
66 * setting, and always treats non-VO ACs as legacy.
67 */
68#define IEEE80211_DEFAULT_UAPSD_QUEUES \
69 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
70
71#define IEEE80211_DEFAULT_MAX_SP_LEN \
72 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
73
74#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
75
76struct ieee80211_fragment_entry {
77 unsigned long first_frag_time;
78 unsigned int seq;
79 unsigned int rx_queue;
80 unsigned int last_frag;
81 unsigned int extra_len;
82 struct sk_buff_head skb_list;
83 int ccmp; /* Whether fragments were encrypted with CCMP */
84 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
85};
86
87
88struct ieee80211_bss {
89 u32 device_ts_beacon, device_ts_presp;
90
91 bool wmm_used;
92 bool uapsd_supported;
93
94#define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
96 size_t supp_rates_len;
97
98 /*
99 * During association, we save an ERP value from a probe response so
100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
102 * otherwise, you probably don't want to use them.
103 */
104 bool has_erp_value;
105 u8 erp_value;
106
107 /* Keep track of the corruption of the last beacon/probe response. */
108 u8 corrupt_data;
109
110 /* Keep track of what bits of information we have valid info for. */
111 u8 valid_data;
112};
113
114/**
115 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
116 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
117 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
118 *
119 * These are bss flags that are attached to a bss in the
120 * @corrupt_data field of &struct ieee80211_bss.
121 */
122enum ieee80211_bss_corrupt_data_flags {
123 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
124 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
125};
126
127/**
128 * enum ieee80211_valid_data_flags - BSS valid data flags
129 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
130 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
132 *
133 * These are bss flags that are attached to a bss in the
134 * @valid_data field of &struct ieee80211_bss. They show which parts
135 * of the data structure were recieved as a result of an un-corrupted
136 * beacon/probe response.
137 */
138enum ieee80211_bss_valid_data_flags {
139 IEEE80211_BSS_VALID_WMM = BIT(1),
140 IEEE80211_BSS_VALID_RATES = BIT(2),
141 IEEE80211_BSS_VALID_ERP = BIT(3)
142};
143
144typedef unsigned __bitwise__ ieee80211_tx_result;
145#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
146#define TX_DROP ((__force ieee80211_tx_result) 1u)
147#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
148
149#define IEEE80211_TX_UNICAST BIT(1)
150#define IEEE80211_TX_PS_BUFFERED BIT(2)
151
152struct ieee80211_tx_data {
153 struct sk_buff *skb;
154 struct sk_buff_head skbs;
155 struct ieee80211_local *local;
156 struct ieee80211_sub_if_data *sdata;
157 struct sta_info *sta;
158 struct ieee80211_key *key;
159
160 unsigned int flags;
161};
162
163
164typedef unsigned __bitwise__ ieee80211_rx_result;
165#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
166#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
167#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
168#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
169
170/**
171 * enum ieee80211_packet_rx_flags - packet RX flags
172 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
173 * (incl. multicast frames)
174 * @IEEE80211_RX_FRAGMENTED: fragmented frame
175 * @IEEE80211_RX_AMSDU: a-MSDU packet
176 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
177 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
178 *
179 * These are per-frame flags that are attached to a frame in the
180 * @rx_flags field of &struct ieee80211_rx_status.
181 */
182enum ieee80211_packet_rx_flags {
183 IEEE80211_RX_RA_MATCH = BIT(1),
184 IEEE80211_RX_FRAGMENTED = BIT(2),
185 IEEE80211_RX_AMSDU = BIT(3),
186 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
187 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
188};
189
190/**
191 * enum ieee80211_rx_flags - RX data flags
192 *
193 * @IEEE80211_RX_CMNTR: received on cooked monitor already
194 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
195 * to cfg80211_report_obss_beacon().
196 *
197 * These flags are used across handling multiple interfaces
198 * for a single frame.
199 */
200enum ieee80211_rx_flags {
201 IEEE80211_RX_CMNTR = BIT(0),
202 IEEE80211_RX_BEACON_REPORTED = BIT(1),
203};
204
205struct ieee80211_rx_data {
206 struct sk_buff *skb;
207 struct ieee80211_local *local;
208 struct ieee80211_sub_if_data *sdata;
209 struct sta_info *sta;
210 struct ieee80211_key *key;
211
212 unsigned int flags;
213
214 /*
215 * Index into sequence numbers array, 0..16
216 * since the last (16) is used for non-QoS,
217 * will be 16 on non-QoS frames.
218 */
219 int seqno_idx;
220
221 /*
222 * Index into the security IV/PN arrays, 0..16
223 * since the last (16) is used for CCMP-encrypted
224 * management frames, will be set to 16 on mgmt
225 * frames and 0 on non-QoS frames.
226 */
227 int security_idx;
228
229 u32 tkip_iv32;
230 u16 tkip_iv16;
231};
232
233struct beacon_data {
234 u8 *head, *tail;
235 int head_len, tail_len;
236 struct rcu_head rcu_head;
237};
238
239struct probe_resp {
240 struct rcu_head rcu_head;
241 int len;
242 u8 data[0];
243};
244
245struct ps_data {
246 /* yes, this looks ugly, but guarantees that we can later use
247 * bitmap_empty :)
248 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
249 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
250 struct sk_buff_head bc_buf;
251 atomic_t num_sta_ps; /* number of stations in PS mode */
252 int dtim_count;
253 bool dtim_bc_mc;
254};
255
256struct ieee80211_if_ap {
257 struct beacon_data __rcu *beacon;
258 struct probe_resp __rcu *probe_resp;
259
260 struct list_head vlans;
261
262 struct ps_data ps;
263 atomic_t num_mcast_sta; /* number of stations receiving multicast */
264};
265
266struct ieee80211_if_wds {
267 struct sta_info *sta;
268 u8 remote_addr[ETH_ALEN];
269};
270
271struct ieee80211_if_vlan {
272 struct list_head list;
273
274 /* used for all tx if the VLAN is configured to 4-addr mode */
275 struct sta_info __rcu *sta;
276};
277
278struct mesh_stats {
279 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
280 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
281 __u32 fwded_frames; /* Mesh total forwarded frames */
282 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
283 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
284 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
285};
286
287#define PREQ_Q_F_START 0x1
288#define PREQ_Q_F_REFRESH 0x2
289struct mesh_preq_queue {
290 struct list_head list;
291 u8 dst[ETH_ALEN];
292 u8 flags;
293};
294
295#if HZ/100 == 0
296#define IEEE80211_ROC_MIN_LEFT 1
297#else
298#define IEEE80211_ROC_MIN_LEFT (HZ/100)
299#endif
300
301struct ieee80211_roc_work {
302 struct list_head list;
303 struct list_head dependents;
304
305 struct delayed_work work;
306
307 struct ieee80211_sub_if_data *sdata;
308
309 struct ieee80211_channel *chan;
310
311 bool started, abort, hw_begun, notified;
312
313 unsigned long hw_start_time;
314
315 u32 duration, req_duration;
316 struct sk_buff *frame;
317 u64 cookie, mgmt_tx_cookie;
318};
319
320/* flags used in struct ieee80211_if_managed.flags */
321enum ieee80211_sta_flags {
322 IEEE80211_STA_BEACON_POLL = BIT(0),
323 IEEE80211_STA_CONNECTION_POLL = BIT(1),
324 IEEE80211_STA_CONTROL_PORT = BIT(2),
325 IEEE80211_STA_DISABLE_HT = BIT(4),
326 IEEE80211_STA_CSA_RECEIVED = BIT(5),
327 IEEE80211_STA_MFP_ENABLED = BIT(6),
328 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
329 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
330 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
331 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
332 IEEE80211_STA_DISABLE_VHT = BIT(11),
333 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
334 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
335};
336
337struct ieee80211_mgd_auth_data {
338 struct cfg80211_bss *bss;
339 unsigned long timeout;
340 int tries;
341 u16 algorithm, expected_transaction;
342
343 u8 key[WLAN_KEY_LEN_WEP104];
344 u8 key_len, key_idx;
345 bool done;
346 bool timeout_started;
347
348 u16 sae_trans, sae_status;
349 size_t data_len;
350 u8 data[];
351};
352
353struct ieee80211_mgd_assoc_data {
354 struct cfg80211_bss *bss;
355 const u8 *supp_rates;
356
357 unsigned long timeout;
358 int tries;
359
360 u16 capability;
361 u8 prev_bssid[ETH_ALEN];
362 u8 ssid[IEEE80211_MAX_SSID_LEN];
363 u8 ssid_len;
364 u8 supp_rates_len;
365 bool wmm, uapsd;
366 bool have_beacon, need_beacon;
367 bool synced;
368 bool timeout_started;
369
370 u8 ap_ht_param;
371
372 struct ieee80211_vht_cap ap_vht_cap;
373
374 size_t ie_len;
375 u8 ie[];
376};
377
378struct ieee80211_if_managed {
379 struct timer_list timer;
380 struct timer_list conn_mon_timer;
381 struct timer_list bcn_mon_timer;
382 struct timer_list chswitch_timer;
383 struct work_struct monitor_work;
384 struct work_struct chswitch_work;
385 struct work_struct beacon_connection_loss_work;
386 struct work_struct csa_connection_drop_work;
387
388 unsigned long beacon_timeout;
389 unsigned long probe_timeout;
390 int probe_send_count;
391 bool nullfunc_failed;
392 bool connection_loss;
393
394 struct mutex mtx;
395 struct cfg80211_bss *associated;
396 struct ieee80211_mgd_auth_data *auth_data;
397 struct ieee80211_mgd_assoc_data *assoc_data;
398
399 u8 bssid[ETH_ALEN];
400
401 u16 aid;
402
403 unsigned long timers_running; /* used for quiesce/restart */
404 bool powersave; /* powersave requested for this iface */
405 bool broken_ap; /* AP is broken -- turn off powersave */
406 u8 dtim_period;
407 enum ieee80211_smps_mode req_smps, /* requested smps mode */
408 driver_smps_mode; /* smps mode request */
409
410 struct work_struct request_smps_work;
411
412 unsigned int flags;
413
414 bool beacon_crc_valid;
415 u32 beacon_crc;
416
417 bool status_acked;
418 bool status_received;
419 __le16 status_fc;
420
421 enum {
422 IEEE80211_MFP_DISABLED,
423 IEEE80211_MFP_OPTIONAL,
424 IEEE80211_MFP_REQUIRED
425 } mfp; /* management frame protection */
426
427 /*
428 * Bitmask of enabled u-apsd queues,
429 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
430 * to take effect.
431 */
432 unsigned int uapsd_queues;
433
434 /*
435 * Maximum number of buffered frames AP can deliver during a
436 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
437 * Needs a new association to take effect.
438 */
439 unsigned int uapsd_max_sp_len;
440
441 int wmm_last_param_set;
442
443 u8 use_4addr;
444
445 u8 p2p_noa_index;
446
447 /* Signal strength from the last Beacon frame in the current BSS. */
448 int last_beacon_signal;
449
450 /*
451 * Weighted average of the signal strength from Beacon frames in the
452 * current BSS. This is in units of 1/16 of the signal unit to maintain
453 * accuracy and to speed up calculations, i.e., the value need to be
454 * divided by 16 to get the actual value.
455 */
456 int ave_beacon_signal;
457
458 /*
459 * Number of Beacon frames used in ave_beacon_signal. This can be used
460 * to avoid generating less reliable cqm events that would be based
461 * only on couple of received frames.
462 */
463 unsigned int count_beacon_signal;
464
465 /*
466 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
467 * that triggered a cqm event. 0 indicates that no event has been
468 * generated for the current association.
469 */
470 int last_cqm_event_signal;
471
472 /*
473 * State variables for keeping track of RSSI of the AP currently
474 * connected to and informing driver when RSSI has gone
475 * below/above a certain threshold.
476 */
477 int rssi_min_thold, rssi_max_thold;
478 int last_ave_beacon_signal;
479
480 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
481 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
482};
483
484struct ieee80211_if_ibss {
485 struct timer_list timer;
486
487 struct mutex mtx;
488
489 unsigned long last_scan_completed;
490
491 u32 basic_rates;
492
493 bool timer_running;
494
495 bool fixed_bssid;
496 bool fixed_channel;
497 bool privacy;
498
499 bool control_port;
500 unsigned int auth_frame_registrations;
501
502 u8 bssid[ETH_ALEN] __aligned(2);
503 u8 ssid[IEEE80211_MAX_SSID_LEN];
504 u8 ssid_len, ie_len;
505 u8 *ie;
506 struct ieee80211_channel *channel;
507 enum nl80211_channel_type channel_type;
508
509 unsigned long ibss_join_req;
510 /* probe response/beacon for IBSS */
511 struct sk_buff __rcu *presp;
512 struct sk_buff *skb;
513
514 spinlock_t incomplete_lock;
515 struct list_head incomplete_stations;
516
517 enum {
518 IEEE80211_IBSS_MLME_SEARCH,
519 IEEE80211_IBSS_MLME_JOINED,
520 } state;
521};
522
523/**
524 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
525 *
526 * these declarations define the interface, which enables
527 * vendor-specific mesh synchronization
528 *
529 */
530struct ieee802_11_elems;
531struct ieee80211_mesh_sync_ops {
532 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
533 u16 stype,
534 struct ieee80211_mgmt *mgmt,
535 struct ieee802_11_elems *elems,
536 struct ieee80211_rx_status *rx_status);
537 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
538 /* add other framework functions here */
539};
540
541struct ieee80211_if_mesh {
542 struct timer_list housekeeping_timer;
543 struct timer_list mesh_path_timer;
544 struct timer_list mesh_path_root_timer;
545
546 unsigned long timers_running;
547
548 unsigned long wrkq_flags;
549
550 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
551 size_t mesh_id_len;
552 /* Active Path Selection Protocol Identifier */
553 u8 mesh_pp_id;
554 /* Active Path Selection Metric Identifier */
555 u8 mesh_pm_id;
556 /* Congestion Control Mode Identifier */
557 u8 mesh_cc_id;
558 /* Synchronization Protocol Identifier */
559 u8 mesh_sp_id;
560 /* Authentication Protocol Identifier */
561 u8 mesh_auth_id;
562 /* Local mesh Sequence Number */
563 u32 sn;
564 /* Last used PREQ ID */
565 u32 preq_id;
566 atomic_t mpaths;
567 /* Timestamp of last SN update */
568 unsigned long last_sn_update;
569 /* Time when it's ok to send next PERR */
570 unsigned long next_perr;
571 /* Timestamp of last PREQ sent */
572 unsigned long last_preq;
573 struct mesh_rmc *rmc;
574 spinlock_t mesh_preq_queue_lock;
575 struct mesh_preq_queue preq_queue;
576 int preq_queue_len;
577 struct mesh_stats mshstats;
578 struct mesh_config mshcfg;
579 atomic_t estab_plinks;
580 u32 mesh_seqnum;
581 bool accepting_plinks;
582 int num_gates;
583 const u8 *ie;
584 u8 ie_len;
585 enum {
586 IEEE80211_MESH_SEC_NONE = 0x0,
587 IEEE80211_MESH_SEC_AUTHED = 0x1,
588 IEEE80211_MESH_SEC_SECURED = 0x2,
589 } security;
590 /* Extensible Synchronization Framework */
591 const struct ieee80211_mesh_sync_ops *sync_ops;
592 s64 sync_offset_clockdrift_max;
593 spinlock_t sync_offset_lock;
594 bool adjusting_tbtt;
595 /* mesh power save */
596 enum nl80211_mesh_power_mode nonpeer_pm;
597 int ps_peers_light_sleep;
598 int ps_peers_deep_sleep;
599 struct ps_data ps;
600};
601
602#ifdef CONFIG_MAC80211_MESH
603#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
604 do { (msh)->mshstats.name++; } while (0)
605#else
606#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
607 do { } while (0)
608#endif
609
610/**
611 * enum ieee80211_sub_if_data_flags - virtual interface flags
612 *
613 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
614 * @IEEE80211_SDATA_PROMISC: interface is promisc
615 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
616 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
617 * associated stations and deliver multicast frames both
618 * back to wireless media and to the local net stack.
619 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
620 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
621 */
622enum ieee80211_sub_if_data_flags {
623 IEEE80211_SDATA_ALLMULTI = BIT(0),
624 IEEE80211_SDATA_PROMISC = BIT(1),
625 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
626 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
627 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
628 IEEE80211_SDATA_IN_DRIVER = BIT(5),
629};
630
631/**
632 * enum ieee80211_sdata_state_bits - virtual interface state bits
633 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
634 * mirrors netif_running() but is separate for interface type
635 * change handling while the interface is up
636 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
637 * mode, so queues are stopped
638 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
639 * to offchannel, reset when offchannel returns
640 */
641enum ieee80211_sdata_state_bits {
642 SDATA_STATE_RUNNING,
643 SDATA_STATE_OFFCHANNEL,
644 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
645};
646
647/**
648 * enum ieee80211_chanctx_mode - channel context configuration mode
649 *
650 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
651 * multiple interfaces
652 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
653 * only by a single interface. This can be used for example for
654 * non-fixed channel IBSS.
655 */
656enum ieee80211_chanctx_mode {
657 IEEE80211_CHANCTX_SHARED,
658 IEEE80211_CHANCTX_EXCLUSIVE
659};
660
661struct ieee80211_chanctx {
662 struct list_head list;
663 struct rcu_head rcu_head;
664
665 enum ieee80211_chanctx_mode mode;
666 int refcount;
667 bool driver_present;
668
669 struct ieee80211_chanctx_conf conf;
670};
671
672struct ieee80211_sub_if_data {
673 struct list_head list;
674
675 struct wireless_dev wdev;
676
677 /* keys */
678 struct list_head key_list;
679
680 /* count for keys needing tailroom space allocation */
681 int crypto_tx_tailroom_needed_cnt;
682
683 struct net_device *dev;
684 struct ieee80211_local *local;
685
686 unsigned int flags;
687
688 unsigned long state;
689
690 int drop_unencrypted;
691
692 char name[IFNAMSIZ];
693
694 /* Fragment table for host-based reassembly */
695 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
696 unsigned int fragment_next;
697
698 /* TID bitmap for NoAck policy */
699 u16 noack_map;
700
701 /* bit field of ACM bits (BIT(802.1D tag)) */
702 u8 wmm_acm;
703
704 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
705 struct ieee80211_key __rcu *default_unicast_key;
706 struct ieee80211_key __rcu *default_multicast_key;
707 struct ieee80211_key __rcu *default_mgmt_key;
708
709 u16 sequence_number;
710 __be16 control_port_protocol;
711 bool control_port_no_encrypt;
712
713 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
714
715 /* used to reconfigure hardware SM PS */
716 struct work_struct recalc_smps;
717
718 struct work_struct work;
719 struct sk_buff_head skb_queue;
720
721 u8 needed_rx_chains;
722 enum ieee80211_smps_mode smps_mode;
723
724 int user_power_level; /* in dBm */
725 int ap_power_level; /* in dBm */
726
727 bool radar_required;
728 struct delayed_work dfs_cac_timer_work;
729
730 /*
731 * AP this belongs to: self in AP mode and
732 * corresponding AP in VLAN mode, NULL for
733 * all others (might be needed later in IBSS)
734 */
735 struct ieee80211_if_ap *bss;
736
737 /* bitmap of allowed (non-MCS) rate indexes for rate control */
738 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
739 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
740
741 union {
742 struct ieee80211_if_ap ap;
743 struct ieee80211_if_wds wds;
744 struct ieee80211_if_vlan vlan;
745 struct ieee80211_if_managed mgd;
746 struct ieee80211_if_ibss ibss;
747 struct ieee80211_if_mesh mesh;
748 u32 mntr_flags;
749 } u;
750
751 spinlock_t cleanup_stations_lock;
752 struct list_head cleanup_stations;
753 struct work_struct cleanup_stations_wk;
754
755#ifdef CONFIG_MAC80211_DEBUGFS
756 struct {
757 struct dentry *dir;
758 struct dentry *subdir_stations;
759 struct dentry *default_unicast_key;
760 struct dentry *default_multicast_key;
761 struct dentry *default_mgmt_key;
762 } debugfs;
763#endif
764
765#ifdef CONFIG_PM
766 struct ieee80211_bss_conf suspend_bss_conf;
767#endif
768
769 /* must be last, dynamically sized area in this! */
770 struct ieee80211_vif vif;
771};
772
773static inline
774struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
775{
776 return container_of(p, struct ieee80211_sub_if_data, vif);
777}
778
779static inline enum ieee80211_band
780ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
781{
782 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
783 struct ieee80211_chanctx_conf *chanctx_conf;
784
785 rcu_read_lock();
786 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
787 if (!WARN_ON(!chanctx_conf))
788 band = chanctx_conf->def.chan->band;
789 rcu_read_unlock();
790
791 return band;
792}
793
794enum sdata_queue_type {
795 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
796 IEEE80211_SDATA_QUEUE_AGG_START = 1,
797 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
798};
799
800enum {
801 IEEE80211_RX_MSG = 1,
802 IEEE80211_TX_STATUS_MSG = 2,
803 IEEE80211_EOSP_MSG = 3,
804};
805
806struct skb_eosp_msg_data {
807 u8 sta[ETH_ALEN], iface[ETH_ALEN];
808};
809
810enum queue_stop_reason {
811 IEEE80211_QUEUE_STOP_REASON_DRIVER,
812 IEEE80211_QUEUE_STOP_REASON_PS,
813 IEEE80211_QUEUE_STOP_REASON_CSA,
814 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
815 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
816 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
817 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
818};
819
820#ifdef CONFIG_MAC80211_LEDS
821struct tpt_led_trigger {
822 struct led_trigger trig;
823 char name[32];
824 const struct ieee80211_tpt_blink *blink_table;
825 unsigned int blink_table_len;
826 struct timer_list timer;
827 unsigned long prev_traffic;
828 unsigned long tx_bytes, rx_bytes;
829 unsigned int active, want;
830 bool running;
831};
832#endif
833
834/**
835 * mac80211 scan flags - currently active scan mode
836 *
837 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
838 * well be on the operating channel
839 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
840 * determine if we are on the operating channel or not
841 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
842 * channel. This should not interrupt normal traffic.
843 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
844 * that the scan completed.
845 * @SCAN_ABORTED: Set for our scan work function when the driver reported
846 * a scan complete for an aborted scan.
847 */
848enum {
849 SCAN_SW_SCANNING,
850 SCAN_HW_SCANNING,
851 SCAN_ONCHANNEL_SCANNING,
852 SCAN_COMPLETED,
853 SCAN_ABORTED,
854};
855
856/**
857 * enum mac80211_scan_state - scan state machine states
858 *
859 * @SCAN_DECISION: Main entry point to the scan state machine, this state
860 * determines if we should keep on scanning or switch back to the
861 * operating channel
862 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
863 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
864 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
865 * send out data
866 * @SCAN_RESUME: Resume the scan and scan the next channel
867 * @SCAN_ABORT: Abort the scan and go back to operating channel
868 */
869enum mac80211_scan_state {
870 SCAN_DECISION,
871 SCAN_SET_CHANNEL,
872 SCAN_SEND_PROBE,
873 SCAN_SUSPEND,
874 SCAN_RESUME,
875 SCAN_ABORT,
876};
877
878struct ieee80211_local {
879 /* embed the driver visible part.
880 * don't cast (use the static inlines below), but we keep
881 * it first anyway so they become a no-op */
882 struct ieee80211_hw hw;
883
884 const struct ieee80211_ops *ops;
885
886 /*
887 * private workqueue to mac80211. mac80211 makes this accessible
888 * via ieee80211_queue_work()
889 */
890 struct workqueue_struct *workqueue;
891
892 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
893 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
894 spinlock_t queue_stop_reason_lock;
895
896 int open_count;
897 int monitors, cooked_mntrs;
898 /* number of interfaces with corresponding FIF_ flags */
899 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
900 fif_probe_req;
901 int probe_req_reg;
902 unsigned int filter_flags; /* FIF_* */
903
904 bool wiphy_ciphers_allocated;
905
906 bool use_chanctx;
907
908 /* protects the aggregated multicast list and filter calls */
909 spinlock_t filter_lock;
910
911 /* used for uploading changed mc list */
912 struct work_struct reconfig_filter;
913
914 /* aggregated multicast list */
915 struct netdev_hw_addr_list mc_list;
916
917 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
918
919 /*
920 * suspended is true if we finished all the suspend _and_ we have
921 * not yet come up from resume. This is to be used by mac80211
922 * to ensure driver sanity during suspend and mac80211's own
923 * sanity. It can eventually be used for WoW as well.
924 */
925 bool suspended;
926
927 /*
928 * Resuming is true while suspended, but when we're reprogramming the
929 * hardware -- at that time it's allowed to use ieee80211_queue_work()
930 * again even though some other parts of the stack are still suspended
931 * and we still drop received frames to avoid waking the stack.
932 */
933 bool resuming;
934
935 /*
936 * quiescing is true during the suspend process _only_ to
937 * ease timer cancelling etc.
938 */
939 bool quiescing;
940
941 /* device is started */
942 bool started;
943
944 /* device is during a HW reconfig */
945 bool in_reconfig;
946
947 /* wowlan is enabled -- don't reconfig on resume */
948 bool wowlan;
949
950 /* DFS/radar detection is enabled */
951 bool radar_detect_enabled;
952 struct work_struct radar_detected_work;
953
954 /* number of RX chains the hardware has */
955 u8 rx_chains;
956
957 int tx_headroom; /* required headroom for hardware/radiotap */
958
959 /* Tasklet and skb queue to process calls from IRQ mode. All frames
960 * added to skb_queue will be processed, but frames in
961 * skb_queue_unreliable may be dropped if the total length of these
962 * queues increases over the limit. */
963#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
964 struct tasklet_struct tasklet;
965 struct sk_buff_head skb_queue;
966 struct sk_buff_head skb_queue_unreliable;
967
968 spinlock_t rx_path_lock;
969
970 /* Station data */
971 /*
972 * The mutex only protects the list, hash table and
973 * counter, reads are done with RCU.
974 */
975 struct mutex sta_mtx;
976 spinlock_t tim_lock;
977 unsigned long num_sta;
978 struct list_head sta_list;
979 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
980 struct timer_list sta_cleanup;
981 int sta_generation;
982
983 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
984 struct tasklet_struct tx_pending_tasklet;
985
986 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
987
988 /* number of interfaces with corresponding IFF_ flags */
989 atomic_t iff_allmultis, iff_promiscs;
990
991 struct rate_control_ref *rate_ctrl;
992
993 struct crypto_cipher *wep_tx_tfm;
994 struct crypto_cipher *wep_rx_tfm;
995 u32 wep_iv;
996
997 /* see iface.c */
998 struct list_head interfaces;
999 struct mutex iflist_mtx;
1000
1001 /*
1002 * Key mutex, protects sdata's key_list and sta_info's
1003 * key pointers (write access, they're RCU.)
1004 */
1005 struct mutex key_mtx;
1006
1007 /* mutex for scan and work locking */
1008 struct mutex mtx;
1009
1010 /* Scanning and BSS list */
1011 unsigned long scanning;
1012 struct cfg80211_ssid scan_ssid;
1013 struct cfg80211_scan_request *int_scan_req;
1014 struct cfg80211_scan_request *scan_req, *hw_scan_req;
1015 struct ieee80211_channel *scan_channel;
1016 enum ieee80211_band hw_scan_band;
1017 int scan_channel_idx;
1018 int scan_ies_len;
1019 int hw_scan_ies_bufsize;
1020
1021 struct work_struct sched_scan_stopped_work;
1022 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1023
1024 unsigned long leave_oper_channel_time;
1025 enum mac80211_scan_state next_scan_state;
1026 struct delayed_work scan_work;
1027 struct ieee80211_sub_if_data __rcu *scan_sdata;
1028 struct ieee80211_channel *csa_channel;
1029 /* For backward compatibility only -- do not use */
1030 struct ieee80211_channel *_oper_channel;
1031 enum nl80211_channel_type _oper_channel_type;
1032
1033 /* Temporary remain-on-channel for off-channel operations */
1034 struct ieee80211_channel *tmp_channel;
1035
1036 /* channel contexts */
1037 struct list_head chanctx_list;
1038 struct mutex chanctx_mtx;
1039
1040 /* SNMP counters */
1041 /* dot11CountersTable */
1042 u32 dot11TransmittedFragmentCount;
1043 u32 dot11MulticastTransmittedFrameCount;
1044 u32 dot11FailedCount;
1045 u32 dot11RetryCount;
1046 u32 dot11MultipleRetryCount;
1047 u32 dot11FrameDuplicateCount;
1048 u32 dot11ReceivedFragmentCount;
1049 u32 dot11MulticastReceivedFrameCount;
1050 u32 dot11TransmittedFrameCount;
1051
1052#ifdef CONFIG_MAC80211_LEDS
1053 int tx_led_counter, rx_led_counter;
1054 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1055 struct tpt_led_trigger *tpt_led_trigger;
1056 char tx_led_name[32], rx_led_name[32],
1057 assoc_led_name[32], radio_led_name[32];
1058#endif
1059
1060#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1061 /* TX/RX handler statistics */
1062 unsigned int tx_handlers_drop;
1063 unsigned int tx_handlers_queued;
1064 unsigned int tx_handlers_drop_unencrypted;
1065 unsigned int tx_handlers_drop_fragment;
1066 unsigned int tx_handlers_drop_wep;
1067 unsigned int tx_handlers_drop_not_assoc;
1068 unsigned int tx_handlers_drop_unauth_port;
1069 unsigned int rx_handlers_drop;
1070 unsigned int rx_handlers_queued;
1071 unsigned int rx_handlers_drop_nullfunc;
1072 unsigned int rx_handlers_drop_defrag;
1073 unsigned int rx_handlers_drop_short;
1074 unsigned int tx_expand_skb_head;
1075 unsigned int tx_expand_skb_head_cloned;
1076 unsigned int rx_expand_skb_head;
1077 unsigned int rx_expand_skb_head2;
1078 unsigned int rx_handlers_fragments;
1079 unsigned int tx_status_drop;
1080#define I802_DEBUG_INC(c) (c)++
1081#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1082#define I802_DEBUG_INC(c) do { } while (0)
1083#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1084
1085
1086 int total_ps_buffered; /* total number of all buffered unicast and
1087 * multicast packets for power saving stations
1088 */
1089
1090 bool pspolling;
1091 bool offchannel_ps_enabled;
1092 /*
1093 * PS can only be enabled when we have exactly one managed
1094 * interface (and monitors) in PS, this then points there.
1095 */
1096 struct ieee80211_sub_if_data *ps_sdata;
1097 struct work_struct dynamic_ps_enable_work;
1098 struct work_struct dynamic_ps_disable_work;
1099 struct timer_list dynamic_ps_timer;
1100 struct notifier_block network_latency_notifier;
1101 struct notifier_block ifa_notifier;
1102 struct notifier_block ifa6_notifier;
1103
1104 /*
1105 * The dynamic ps timeout configured from user space via WEXT -
1106 * this will override whatever chosen by mac80211 internally.
1107 */
1108 int dynamic_ps_forced_timeout;
1109
1110 int user_power_level; /* in dBm, for all interfaces */
1111
1112 enum ieee80211_smps_mode smps_mode;
1113
1114 struct work_struct restart_work;
1115
1116#ifdef CONFIG_MAC80211_DEBUGFS
1117 struct local_debugfsdentries {
1118 struct dentry *rcdir;
1119 struct dentry *keys;
1120 } debugfs;
1121#endif
1122
1123 /*
1124 * Remain-on-channel support
1125 */
1126 struct list_head roc_list;
1127 struct work_struct hw_roc_start, hw_roc_done;
1128 unsigned long hw_roc_start_time;
1129 u64 roc_cookie_counter;
1130
1131 struct idr ack_status_frames;
1132 spinlock_t ack_status_lock;
1133
1134 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1135
1136 /* dummy netdev for use w/ NAPI */
1137 struct net_device napi_dev;
1138
1139 struct napi_struct napi;
1140
1141 /* virtual monitor interface */
1142 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1143 struct cfg80211_chan_def monitor_chandef;
1144};
1145
1146static inline struct ieee80211_sub_if_data *
1147IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1148{
1149 return netdev_priv(dev);
1150}
1151
1152static inline struct ieee80211_sub_if_data *
1153IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1154{
1155 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1156}
1157
1158/* this struct represents 802.11n's RA/TID combination */
1159struct ieee80211_ra_tid {
1160 u8 ra[ETH_ALEN];
1161 u16 tid;
1162};
1163
1164/* Parsed Information Elements */
1165struct ieee802_11_elems {
1166 u8 *ie_start;
1167 size_t total_len;
1168
1169 /* pointers to IEs */
1170 u8 *ssid;
1171 u8 *supp_rates;
1172 u8 *fh_params;
1173 u8 *ds_params;
1174 u8 *cf_params;
1175 struct ieee80211_tim_ie *tim;
1176 u8 *ibss_params;
1177 u8 *challenge;
1178 u8 *rsn;
1179 u8 *erp_info;
1180 u8 *ext_supp_rates;
1181 u8 *wmm_info;
1182 u8 *wmm_param;
1183 struct ieee80211_ht_cap *ht_cap_elem;
1184 struct ieee80211_ht_operation *ht_operation;
1185 struct ieee80211_vht_cap *vht_cap_elem;
1186 struct ieee80211_vht_operation *vht_operation;
1187 struct ieee80211_meshconf_ie *mesh_config;
1188 u8 *mesh_id;
1189 u8 *peering;
1190 __le16 *awake_window;
1191 u8 *preq;
1192 u8 *prep;
1193 u8 *perr;
1194 struct ieee80211_rann_ie *rann;
1195 struct ieee80211_channel_sw_ie *ch_switch_ie;
1196 u8 *country_elem;
1197 u8 *pwr_constr_elem;
1198 u8 *quiet_elem; /* first quite element */
1199 u8 *timeout_int;
1200
1201 /* length of them, respectively */
1202 u8 ssid_len;
1203 u8 supp_rates_len;
1204 u8 fh_params_len;
1205 u8 ds_params_len;
1206 u8 cf_params_len;
1207 u8 tim_len;
1208 u8 ibss_params_len;
1209 u8 challenge_len;
1210 u8 rsn_len;
1211 u8 erp_info_len;
1212 u8 ext_supp_rates_len;
1213 u8 wmm_info_len;
1214 u8 wmm_param_len;
1215 u8 mesh_id_len;
1216 u8 peering_len;
1217 u8 preq_len;
1218 u8 prep_len;
1219 u8 perr_len;
1220 u8 country_elem_len;
1221 u8 quiet_elem_len;
1222 u8 num_of_quiet_elem; /* can be more the one */
1223 u8 timeout_int_len;
1224
1225 /* whether a parse error occurred while retrieving these elements */
1226 bool parse_error;
1227};
1228
1229static inline struct ieee80211_local *hw_to_local(
1230 struct ieee80211_hw *hw)
1231{
1232 return container_of(hw, struct ieee80211_local, hw);
1233}
1234
1235
1236static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1237{
1238 return ether_addr_equal(raddr, addr) ||
1239 is_broadcast_ether_addr(raddr);
1240}
1241
1242static inline bool
1243ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1244{
1245 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1246 status->flag & RX_FLAG_MACTIME_END);
1247 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1248}
1249
1250u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1251 struct ieee80211_rx_status *status,
1252 unsigned int mpdu_len,
1253 unsigned int mpdu_offset);
1254int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1255void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1256void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1257 u32 changed);
1258void ieee80211_configure_filter(struct ieee80211_local *local);
1259u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1260
1261/* STA code */
1262void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1263int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1264 struct cfg80211_auth_request *req);
1265int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1266 struct cfg80211_assoc_request *req);
1267int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1268 struct cfg80211_deauth_request *req);
1269int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1270 struct cfg80211_disassoc_request *req);
1271void ieee80211_send_pspoll(struct ieee80211_local *local,
1272 struct ieee80211_sub_if_data *sdata);
1273void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1274void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1275int ieee80211_max_network_latency(struct notifier_block *nb,
1276 unsigned long data, void *dummy);
1277int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1278void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1279 struct ieee80211_channel_sw_ie *sw_elem,
1280 struct ieee80211_bss *bss,
1281 u64 timestamp);
1282void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1283void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1284void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1285void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1286 struct sk_buff *skb);
1287void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1288void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1289void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1290void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1291 __le16 fc, bool acked);
1292
1293/* IBSS code */
1294void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1295void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1296void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1297 const u8 *bssid, const u8 *addr, u32 supp_rates);
1298int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1299 struct cfg80211_ibss_params *params);
1300int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1301void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1302void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1303void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1304void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1305 struct sk_buff *skb);
1306
1307/* mesh code */
1308void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1309void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1310 struct sk_buff *skb);
1311
1312/* scan/BSS handling */
1313void ieee80211_scan_work(struct work_struct *work);
1314int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1315 const u8 *ssid, u8 ssid_len,
1316 struct ieee80211_channel *chan);
1317int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1318 struct cfg80211_scan_request *req);
1319void ieee80211_scan_cancel(struct ieee80211_local *local);
1320void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1321void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1322
1323void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1324struct ieee80211_bss *
1325ieee80211_bss_info_update(struct ieee80211_local *local,
1326 struct ieee80211_rx_status *rx_status,
1327 struct ieee80211_mgmt *mgmt,
1328 size_t len,
1329 struct ieee802_11_elems *elems,
1330 struct ieee80211_channel *channel);
1331void ieee80211_rx_bss_put(struct ieee80211_local *local,
1332 struct ieee80211_bss *bss);
1333
1334/* scheduled scan handling */
1335int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1336 struct cfg80211_sched_scan_request *req);
1337int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1338void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1339
1340/* off-channel helpers */
1341void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1342void ieee80211_offchannel_return(struct ieee80211_local *local);
1343void ieee80211_roc_setup(struct ieee80211_local *local);
1344void ieee80211_start_next_roc(struct ieee80211_local *local);
1345void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1346void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1347void ieee80211_sw_roc_work(struct work_struct *work);
1348void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1349
1350/* interface handling */
1351int ieee80211_iface_init(void);
1352void ieee80211_iface_exit(void);
1353int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1354 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1355 struct vif_params *params);
1356int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1357 enum nl80211_iftype type);
1358void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1359void ieee80211_remove_interfaces(struct ieee80211_local *local);
1360void ieee80211_recalc_idle(struct ieee80211_local *local);
1361void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1362 const int offset);
1363int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1364void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1365
1366bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1367void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1368
1369static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1370{
1371 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1372}
1373
1374/* tx handling */
1375void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1376void ieee80211_tx_pending(unsigned long data);
1377netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1378 struct net_device *dev);
1379netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1380 struct net_device *dev);
1381void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1382 struct sk_buff_head *skbs);
1383
1384/* HT */
1385void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1386 struct ieee80211_sta_ht_cap *ht_cap);
1387void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1388 struct ieee80211_supported_band *sband,
1389 struct ieee80211_ht_cap *ht_cap_ie,
1390 struct ieee80211_sta_ht_cap *ht_cap);
1391void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1392 const u8 *da, u16 tid,
1393 u16 initiator, u16 reason_code);
1394int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1395 enum ieee80211_smps_mode smps, const u8 *da,
1396 const u8 *bssid);
1397void ieee80211_request_smps_work(struct work_struct *work);
1398
1399void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1400 u16 initiator, u16 reason, bool stop);
1401void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1402 u16 initiator, u16 reason, bool stop);
1403void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1404 enum ieee80211_agg_stop_reason reason);
1405void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1406 struct sta_info *sta,
1407 struct ieee80211_mgmt *mgmt, size_t len);
1408void ieee80211_process_addba_resp(struct ieee80211_local *local,
1409 struct sta_info *sta,
1410 struct ieee80211_mgmt *mgmt,
1411 size_t len);
1412void ieee80211_process_addba_request(struct ieee80211_local *local,
1413 struct sta_info *sta,
1414 struct ieee80211_mgmt *mgmt,
1415 size_t len);
1416
1417int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1418 enum ieee80211_agg_stop_reason reason);
1419int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1420 enum ieee80211_agg_stop_reason reason);
1421void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1422void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1423void ieee80211_ba_session_work(struct work_struct *work);
1424void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1425void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1426
1427u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1428
1429/* VHT */
1430void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1431 struct ieee80211_supported_band *sband,
1432 struct ieee80211_vht_cap *vht_cap_ie,
1433 struct sta_info *sta);
1434
1435/* Spectrum management */
1436void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1437 struct ieee80211_mgmt *mgmt,
1438 size_t len);
1439
1440/* Suspend/resume and hw reconfiguration */
1441int ieee80211_reconfig(struct ieee80211_local *local);
1442void ieee80211_stop_device(struct ieee80211_local *local);
1443
1444int __ieee80211_suspend(struct ieee80211_hw *hw,
1445 struct cfg80211_wowlan *wowlan);
1446
1447static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1448{
1449 struct ieee80211_local *local = hw_to_local(hw);
1450
1451 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1452 "%s: resume with hardware scan still in progress\n",
1453 wiphy_name(hw->wiphy));
1454
1455 return ieee80211_reconfig(hw_to_local(hw));
1456}
1457
1458/* utility functions/constants */
1459extern void *mac80211_wiphy_privid; /* for wiphy privid */
1460u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1461 enum nl80211_iftype type);
1462int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1463 int rate, int erp, int short_preamble);
1464void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1465 struct ieee80211_hdr *hdr, const u8 *tsc,
1466 gfp_t gfp);
1467void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1468 bool bss_notify);
1469void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1470 enum ieee80211_band band);
1471
1472void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1473 struct sk_buff *skb, int tid,
1474 enum ieee80211_band band);
1475
1476static inline void
1477ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1478 struct sk_buff *skb, int tid,
1479 enum ieee80211_band band)
1480{
1481 rcu_read_lock();
1482 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1483 rcu_read_unlock();
1484}
1485
1486static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1487 struct sk_buff *skb, int tid)
1488{
1489 struct ieee80211_chanctx_conf *chanctx_conf;
1490
1491 rcu_read_lock();
1492 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1493 if (WARN_ON(!chanctx_conf)) {
1494 rcu_read_unlock();
1495 kfree_skb(skb);
1496 return;
1497 }
1498
1499 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1500 chanctx_conf->def.chan->band);
1501 rcu_read_unlock();
1502}
1503
1504static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1505 struct sk_buff *skb)
1506{
1507 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1508 ieee80211_tx_skb_tid(sdata, skb, 7);
1509}
1510
1511void ieee802_11_parse_elems(u8 *start, size_t len,
1512 struct ieee802_11_elems *elems);
1513u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1514 struct ieee802_11_elems *elems,
1515 u64 filter, u32 crc);
1516u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1517 enum ieee80211_band band);
1518
1519void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1520void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1521void ieee80211_dynamic_ps_timer(unsigned long data);
1522void ieee80211_send_nullfunc(struct ieee80211_local *local,
1523 struct ieee80211_sub_if_data *sdata,
1524 int powersave);
1525void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1526 struct ieee80211_hdr *hdr);
1527void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1528 struct ieee80211_hdr *hdr, bool ack);
1529
1530void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1531 enum queue_stop_reason reason);
1532void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1533 enum queue_stop_reason reason);
1534void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1535 enum queue_stop_reason reason);
1536void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1537 enum queue_stop_reason reason);
1538void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1539void ieee80211_add_pending_skb(struct ieee80211_local *local,
1540 struct sk_buff *skb);
1541void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1542 struct sk_buff_head *skbs,
1543 void (*fn)(void *data), void *data);
1544static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1545 struct sk_buff_head *skbs)
1546{
1547 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1548}
1549
1550void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1551 u16 transaction, u16 auth_alg, u16 status,
1552 u8 *extra, size_t extra_len, const u8 *bssid,
1553 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1554 u32 tx_flags);
1555void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1556 const u8 *bssid, u16 stype, u16 reason,
1557 bool send_frame, u8 *frame_buf);
1558int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1559 size_t buffer_len, const u8 *ie, size_t ie_len,
1560 enum ieee80211_band band, u32 rate_mask,
1561 u8 channel);
1562struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1563 u8 *dst, u32 ratemask,
1564 struct ieee80211_channel *chan,
1565 const u8 *ssid, size_t ssid_len,
1566 const u8 *ie, size_t ie_len,
1567 bool directed);
1568void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1569 const u8 *ssid, size_t ssid_len,
1570 const u8 *ie, size_t ie_len,
1571 u32 ratemask, bool directed, u32 tx_flags,
1572 struct ieee80211_channel *channel, bool scan);
1573
1574void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1575 const size_t supp_rates_len,
1576 const u8 *supp_rates);
1577u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1578 struct ieee802_11_elems *elems,
1579 enum ieee80211_band band, u32 *basic_rates);
1580int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1581 enum ieee80211_smps_mode smps_mode);
1582void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1583
1584size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1585 const u8 *ids, int n_ids, size_t offset);
1586size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1587u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1588 u16 cap);
1589u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1590 const struct cfg80211_chan_def *chandef,
1591 u16 prot_mode);
1592u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1593 u32 cap);
1594int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1595 struct sk_buff *skb, bool need_basic,
1596 enum ieee80211_band band);
1597int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1598 struct sk_buff *skb, bool need_basic,
1599 enum ieee80211_band band);
1600
1601/* channel management */
1602void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1603 struct ieee80211_ht_operation *ht_oper,
1604 struct cfg80211_chan_def *chandef);
1605
1606int __must_check
1607ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1608 const struct cfg80211_chan_def *chandef,
1609 enum ieee80211_chanctx_mode mode);
1610void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
1611void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
1612void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1613 bool clear);
1614
1615void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1616 struct ieee80211_chanctx *chanctx);
1617void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
1618 struct ieee80211_chanctx *chanctx);
1619
1620void ieee80211_dfs_cac_timer(unsigned long data);
1621void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1622void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1623void ieee80211_dfs_radar_detected_work(struct work_struct *work);
1624
1625#ifdef CONFIG_MAC80211_NOINLINE
1626#define debug_noinline noinline
1627#else
1628#define debug_noinline
1629#endif
1630
1631#endif /* IEEE80211_I_H */
Linux kernel - Deliverables
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