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mac80211: Fix rate reporting regression
[linux-block.git] / net / mac80211 / ieee80211_i.h
CommitLineData
f0706e82
JB		 1/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
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>
571ecf67 24#include <linux/etherdevice.h>
f0706e82
JB		 25#include <net/wireless.h>
26#include "ieee80211_key.h"
27#include "sta_info.h"
28
29/* ieee80211.o internal definitions, etc. These are not included into
30 * low-level drivers. */
31
32#ifndef ETH_P_PAE
33#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
34#endif /* ETH_P_PAE */
35
36#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
37
38struct ieee80211_local;
39
f0706e82
JB		 40#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
41
42/* Maximum number of broadcast/multicast frames to buffer when some of the
43 * associated stations are using power saving. */
44#define AP_MAX_BC_BUFFER 128
45
46/* Maximum number of frames buffered to all STAs, including multicast frames.
47 * Note: increasing this limit increases the potential memory requirement. Each
48 * frame can be up to about 2 kB long. */
49#define TOTAL_MAX_TX_BUFFER 512
50
51/* Required encryption head and tailroom */
52#define IEEE80211_ENCRYPT_HEADROOM 8
53#define IEEE80211_ENCRYPT_TAILROOM 12
54
55/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
56 * reception of at least three fragmented frames. This limit can be increased
57 * by changing this define, at the cost of slower frame reassembly and
58 * increased memory use (about 2 kB of RAM per entry). */
59#define IEEE80211_FRAGMENT_MAX 4
60
61struct ieee80211_fragment_entry {
62 unsigned long first_frag_time;
63 unsigned int seq;
64 unsigned int rx_queue;
65 unsigned int last_frag;
66 unsigned int extra_len;
67 struct sk_buff_head skb_list;
68 int ccmp; /* Whether fragments were encrypted with CCMP */
69 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
70};
71
72
73struct ieee80211_sta_bss {
74 struct list_head list;
75 struct ieee80211_sta_bss *hnext;
76 atomic_t users;
77
78 u8 bssid[ETH_ALEN];
79 u8 ssid[IEEE80211_MAX_SSID_LEN];
80 size_t ssid_len;
81 u16 capability; /* host byte order */
82 int hw_mode;
83 int channel;
84 int freq;
85 int rssi, signal, noise;
86 u8 *wpa_ie;
87 size_t wpa_ie_len;
88 u8 *rsn_ie;
89 size_t rsn_ie_len;
90 u8 *wmm_ie;
91 size_t wmm_ie_len;
c7153508
RR		 92 u8 *ht_ie;
93 size_t ht_ie_len;
f0706e82
JB		 94#define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
96 size_t supp_rates_len;
97 int beacon_int;
98 u64 timestamp;
99
100 int probe_resp;
101 unsigned long last_update;
102
5628221c
DD		 103 /* during assocation, we save an ERP value from a probe response so
104 * that we can feed ERP info to the driver when handling the
105 * association completes. these fields probably won't be up-to-date
106 * otherwise, you probably don't want to use them. */
107 int has_erp_value;
108 u8 erp_value;
f0706e82
JB		 109};
110
111
112typedef enum {
113 TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
114} ieee80211_txrx_result;
115
badffb72
JS		 116/* flags used in struct ieee80211_txrx_data.flags */
117/* whether the MSDU was fragmented */
118#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
119#define IEEE80211_TXRXD_TXUNICAST BIT(1)
120#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
121#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
122#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
123/* frame is destined to interface currently processed (incl. multicast frames) */
124#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
58d4185e 125#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
64bd4b69 126#define IEEE80211_TXRXD_RX_AMSDU BIT(7)
f0706e82
JB		 127struct ieee80211_txrx_data {
128 struct sk_buff *skb;
129 struct net_device *dev;
130 struct ieee80211_local *local;
131 struct ieee80211_sub_if_data *sdata;
132 struct sta_info *sta;
133 u16 fc, ethertype;
134 struct ieee80211_key *key;
badffb72 135 unsigned int flags;
f0706e82
JB		 136 union {
137 struct {
138 struct ieee80211_tx_control *control;
f0706e82
JB		 139 struct ieee80211_hw_mode *mode;
140 struct ieee80211_rate *rate;
141 /* use this rate (if set) for last fragment; rate can
142 * be set to lower rate for the first fragments, e.g.,
143 * when using CTS protection with IEEE 802.11g. */
144 struct ieee80211_rate *last_frag_rate;
145 int last_frag_hwrate;
f0706e82
JB		 146
147 /* Extra fragments (in addition to the first fragment
148 * in skb) */
149 int num_extra_frag;
150 struct sk_buff **extra_frag;
151 } tx;
152 struct {
153 struct ieee80211_rx_status *status;
154 int sent_ps_buffered;
155 int queue;
156 int load;
50741ae0
JB		 157 u32 tkip_iv32;
158 u16 tkip_iv16;
f0706e82
JB		 159 } rx;
160 } u;
161};
162
e8bf9649
JS		 163/* flags used in struct ieee80211_tx_packet_data.flags */
164#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
165#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
166#define IEEE80211_TXPD_REQUEUE BIT(2)
678f5f71 167#define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
f0706e82
JB		 168/* Stored in sk_buff->cb */
169struct ieee80211_tx_packet_data {
170 int ifindex;
171 unsigned long jiffies;
e8bf9649
JS		 172 unsigned int flags;
173 u8 queue;
f0706e82
JB		 174};
175
176struct ieee80211_tx_stored_packet {
177 struct ieee80211_tx_control control;
178 struct sk_buff *skb;
179 int num_extra_frag;
180 struct sk_buff **extra_frag;
181 int last_frag_rateidx;
182 int last_frag_hwrate;
183 struct ieee80211_rate *last_frag_rate;
badffb72 184 unsigned int last_frag_rate_ctrl_probe;
f0706e82
JB		 185};
186
187typedef ieee80211_txrx_result (*ieee80211_tx_handler)
188(struct ieee80211_txrx_data *tx);
189
190typedef ieee80211_txrx_result (*ieee80211_rx_handler)
191(struct ieee80211_txrx_data *rx);
192
5dfdaf58
JB		 193struct beacon_data {
194 u8 *head, *tail;
195 int head_len, tail_len;
196 int dtim_period;
197};
198
f0706e82 199struct ieee80211_if_ap {
5dfdaf58 200 struct beacon_data *beacon;
f0706e82 201
0ec3ca44
JB		 202 struct list_head vlans;
203
f0706e82
JB		 204 u8 ssid[IEEE80211_MAX_SSID_LEN];
205 size_t ssid_len;
f0706e82
JB		 206
207 /* yes, this looks ugly, but guarantees that we can later use
208 * bitmap_empty :)
209 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
210 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
211 atomic_t num_sta_ps; /* number of stations in PS mode */
212 struct sk_buff_head ps_bc_buf;
5dfdaf58 213 int dtim_count;
f0706e82
JB		 214 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
215 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
216 int num_beacons; /* number of TXed beacon frames for this BSS */
217};
218
219struct ieee80211_if_wds {
220 u8 remote_addr[ETH_ALEN];
221 struct sta_info *sta;
222};
223
224struct ieee80211_if_vlan {
0ec3ca44
JB		 225 struct ieee80211_sub_if_data *ap;
226 struct list_head list;
f0706e82
JB		 227};
228
d6f2da5b
JS		 229/* flags used in struct ieee80211_if_sta.flags */
230#define IEEE80211_STA_SSID_SET BIT(0)
231#define IEEE80211_STA_BSSID_SET BIT(1)
232#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
233#define IEEE80211_STA_AUTHENTICATED BIT(3)
234#define IEEE80211_STA_ASSOCIATED BIT(4)
235#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
236#define IEEE80211_STA_CREATE_IBSS BIT(6)
237#define IEEE80211_STA_MIXED_CELL BIT(7)
238#define IEEE80211_STA_WMM_ENABLED BIT(8)
239#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
240#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
241#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
5b98b1f7 242#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
f0706e82
JB		 243struct ieee80211_if_sta {
244 enum {
245 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
246 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
247 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
248 } state;
249 struct timer_list timer;
250 struct work_struct work;
251 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
252 u8 ssid[IEEE80211_MAX_SSID_LEN];
253 size_t ssid_len;
a0af5f14
HS		 254 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
255 size_t scan_ssid_len;
f0706e82
JB		 256 u16 aid;
257 u16 ap_capab, capab;
258 u8 *extra_ie; /* to be added to the end of AssocReq */
259 size_t extra_ie_len;
260
261 /* The last AssocReq/Resp IEs */
262 u8 *assocreq_ies, *assocresp_ies;
263 size_t assocreq_ies_len, assocresp_ies_len;
264
265 int auth_tries, assoc_tries;
266
d6f2da5b 267 unsigned int flags;
f0706e82
JB		 268#define IEEE80211_STA_REQ_SCAN 0
269#define IEEE80211_STA_REQ_AUTH 1
270#define IEEE80211_STA_REQ_RUN 2
271 unsigned long request;
272 struct sk_buff_head skb_queue;
273
f0706e82
JB		 274 unsigned long last_probe;
275
276#define IEEE80211_AUTH_ALG_OPEN BIT(0)
277#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
278#define IEEE80211_AUTH_ALG_LEAP BIT(2)
279 unsigned int auth_algs; /* bitfield of allowed auth algs */
280 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
281 int auth_transaction;
282
283 unsigned long ibss_join_req;
284 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
285 u32 supp_rates_bits;
286
287 int wmm_last_param_set;
288};
289
290
13262ffd
JS		 291/* flags used in struct ieee80211_sub_if_data.flags */
292#define IEEE80211_SDATA_ALLMULTI BIT(0)
293#define IEEE80211_SDATA_PROMISC BIT(1)
294#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
295/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
296 * generator reports that there are no present stations that cannot support short
297 * preambles */
298#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
ddd3d2be 299#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
f0706e82
JB		 300struct ieee80211_sub_if_data {
301 struct list_head list;
f0706e82
JB		 302
303 struct wireless_dev wdev;
304
11a843b7
JB		 305 /* keys */
306 struct list_head key_list;
307
f0706e82
JB		 308 struct net_device *dev;
309 struct ieee80211_local *local;
310
13262ffd 311 unsigned int flags;
7e9ed188 312
f0706e82 313 int drop_unencrypted;
ce3edf6d
JB		 314 /*
315 * IEEE 802.1X Port access control in effect,
316 * drop packets to/from unauthorized port
317 */
318 int ieee802_1x_pac;
f0706e82
JB		 319
320 u16 sequence;
321
322 /* Fragment table for host-based reassembly */
323 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
324 unsigned int fragment_next;
325
326#define NUM_DEFAULT_KEYS 4
327 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
328 struct ieee80211_key *default_key;
329
330 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
331
332 union {
333 struct ieee80211_if_ap ap;
334 struct ieee80211_if_wds wds;
335 struct ieee80211_if_vlan vlan;
336 struct ieee80211_if_sta sta;
337 } u;
338 int channel_use;
339 int channel_use_raw;
e9f207f0
JB		 340
341#ifdef CONFIG_MAC80211_DEBUGFS
342 struct dentry *debugfsdir;
343 union {
344 struct {
345 struct dentry *channel_use;
346 struct dentry *drop_unencrypted;
ce3edf6d 347 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 348 struct dentry *state;
349 struct dentry *bssid;
350 struct dentry *prev_bssid;
351 struct dentry *ssid_len;
352 struct dentry *aid;
353 struct dentry *ap_capab;
354 struct dentry *capab;
355 struct dentry *extra_ie_len;
356 struct dentry *auth_tries;
357 struct dentry *assoc_tries;
358 struct dentry *auth_algs;
359 struct dentry *auth_alg;
360 struct dentry *auth_transaction;
361 struct dentry *flags;
362 } sta;
363 struct {
364 struct dentry *channel_use;
365 struct dentry *drop_unencrypted;
ce3edf6d 366 struct dentry *ieee802_1x_pac;
e9f207f0 367 struct dentry *num_sta_ps;
e9f207f0
JB		 368 struct dentry *dtim_count;
369 struct dentry *num_beacons;
370 struct dentry *force_unicast_rateidx;
371 struct dentry *max_ratectrl_rateidx;
372 struct dentry *num_buffered_multicast;
e9f207f0
JB		 373 } ap;
374 struct {
375 struct dentry *channel_use;
376 struct dentry *drop_unencrypted;
ce3edf6d 377 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 378 struct dentry *peer;
379 } wds;
380 struct {
381 struct dentry *channel_use;
382 struct dentry *drop_unencrypted;
ce3edf6d 383 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 384 } vlan;
385 struct {
386 struct dentry *mode;
387 } monitor;
388 struct dentry *default_key;
389 } debugfs;
390#endif
32bfd35d
JB		 391 /* must be last, dynamically sized area in this! */
392 struct ieee80211_vif vif;
f0706e82
JB		 393};
394
32bfd35d
JB		 395static inline
396struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
397{
398 return container_of(p, struct ieee80211_sub_if_data, vif);
399}
400
f0706e82
JB		 401#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
402
403enum {
404 IEEE80211_RX_MSG = 1,
405 IEEE80211_TX_STATUS_MSG = 2,
406};
407
408struct ieee80211_local {
409 /* embed the driver visible part.
410 * don't cast (use the static inlines below), but we keep
411 * it first anyway so they become a no-op */
412 struct ieee80211_hw hw;
413
414 const struct ieee80211_ops *ops;
415
416 /* List of registered struct ieee80211_hw_mode */
417 struct list_head modes_list;
418
419 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
f0706e82
JB		 420 int open_count;
421 int monitors;
4150c572 422 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 423 struct iw_statistics wstats;
424 u8 wstats_flags;
b306f453 425 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 426
427 enum {
428 IEEE80211_DEV_UNINITIALIZED = 0,
429 IEEE80211_DEV_REGISTERED,
430 IEEE80211_DEV_UNREGISTERED,
431 } reg_state;
432
433 /* Tasklet and skb queue to process calls from IRQ mode. All frames
434 * added to skb_queue will be processed, but frames in
435 * skb_queue_unreliable may be dropped if the total length of these
436 * queues increases over the limit. */
437#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
438 struct tasklet_struct tasklet;
439 struct sk_buff_head skb_queue;
440 struct sk_buff_head skb_queue_unreliable;
441
442 /* Station data structures */
be8755e1 443 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 444 int num_sta; /* number of stations in sta_list */
445 struct list_head sta_list;
f0706e82
JB		 446 struct sta_info *sta_hash[STA_HASH_SIZE];
447 struct timer_list sta_cleanup;
448
449 unsigned long state[NUM_TX_DATA_QUEUES];
450 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
451 struct tasklet_struct tx_pending_tasklet;
452
53918994
JB		 453 /* number of interfaces with corresponding IFF_ flags */
454 atomic_t iff_allmultis, iff_promiscs;
f0706e82
JB		 455
456 struct rate_control_ref *rate_ctrl;
457
f0706e82
JB		 458 /* Supported and basic rate filters for different modes. These are
459 * pointers to -1 terminated lists and rates in 100 kbps units. */
460 int *supp_rates[NUM_IEEE80211_MODES];
461 int *basic_rates[NUM_IEEE80211_MODES];
462
463 int rts_threshold;
f0706e82
JB		 464 int fragmentation_threshold;
465 int short_retry_limit; /* dot11ShortRetryLimit */
466 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 467
468 struct crypto_blkcipher *wep_tx_tfm;
469 struct crypto_blkcipher *wep_rx_tfm;
470 u32 wep_iv;
f0706e82
JB		 471
472 int bridge_packets; /* bridge packets between associated stations and
473 * deliver multicast frames both back to wireless
474 * media and to the local net stack */
475
476 ieee80211_rx_handler *rx_pre_handlers;
477 ieee80211_rx_handler *rx_handlers;
478 ieee80211_tx_handler *tx_handlers;
479
79010420
JB		 480 struct list_head interfaces;
481
ece8eddd
ZY		 482 bool sta_sw_scanning;
483 bool sta_hw_scanning;
f0706e82
JB		 484 int scan_channel_idx;
485 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
486 unsigned long last_scan_completed;
487 struct delayed_work scan_work;
488 struct net_device *scan_dev;
489 struct ieee80211_channel *oper_channel, *scan_channel;
490 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
491 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
492 size_t scan_ssid_len;
493 struct list_head sta_bss_list;
494 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
495 spinlock_t sta_bss_lock;
f0706e82
JB		 496
497 /* SNMP counters */
498 /* dot11CountersTable */
499 u32 dot11TransmittedFragmentCount;
500 u32 dot11MulticastTransmittedFrameCount;
501 u32 dot11FailedCount;
502 u32 dot11RetryCount;
503 u32 dot11MultipleRetryCount;
504 u32 dot11FrameDuplicateCount;
505 u32 dot11ReceivedFragmentCount;
506 u32 dot11MulticastReceivedFrameCount;
507 u32 dot11TransmittedFrameCount;
508 u32 dot11WEPUndecryptableCount;
509
510#ifdef CONFIG_MAC80211_LEDS
511 int tx_led_counter, rx_led_counter;
cdcb006f
ID		 512 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
513 char tx_led_name[32], rx_led_name[32],
514 assoc_led_name[32], radio_led_name[32];
f0706e82
JB		 515#endif
516
517 u32 channel_use;
518 u32 channel_use_raw;
f0706e82 519
e9f207f0
JB		 520#ifdef CONFIG_MAC80211_DEBUGFS
521 struct work_struct sta_debugfs_add;
522#endif
523
f0706e82
JB		 524#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
525 /* TX/RX handler statistics */
526 unsigned int tx_handlers_drop;
527 unsigned int tx_handlers_queued;
528 unsigned int tx_handlers_drop_unencrypted;
529 unsigned int tx_handlers_drop_fragment;
530 unsigned int tx_handlers_drop_wep;
531 unsigned int tx_handlers_drop_not_assoc;
532 unsigned int tx_handlers_drop_unauth_port;
533 unsigned int rx_handlers_drop;
534 unsigned int rx_handlers_queued;
535 unsigned int rx_handlers_drop_nullfunc;
536 unsigned int rx_handlers_drop_defrag;
537 unsigned int rx_handlers_drop_short;
538 unsigned int rx_handlers_drop_passive_scan;
539 unsigned int tx_expand_skb_head;
540 unsigned int tx_expand_skb_head_cloned;
541 unsigned int rx_expand_skb_head;
542 unsigned int rx_expand_skb_head2;
543 unsigned int rx_handlers_fragments;
544 unsigned int tx_status_drop;
545 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
546 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
547#define I802_DEBUG_INC(c) (c)++
548#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
549#define I802_DEBUG_INC(c) do { } while (0)
550#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
551
552
f0706e82
JB		 553 int total_ps_buffered; /* total number of all buffered unicast and
554 * multicast packets for power saving stations
555 */
f0706e82
JB		 556 int wifi_wme_noack_test;
557 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
558
559 unsigned int enabled_modes; /* bitfield of allowed modes;
560 * (1 << MODE_*) */
561 unsigned int hw_modes; /* bitfield of supported hardware modes;
562 * (1 << MODE_*) */
563
e9f207f0
JB		 564#ifdef CONFIG_MAC80211_DEBUGFS
565 struct local_debugfsdentries {
566 struct dentry *channel;
567 struct dentry *frequency;
e9f207f0
JB		 568 struct dentry *antenna_sel_tx;
569 struct dentry *antenna_sel_rx;
570 struct dentry *bridge_packets;
e9f207f0
JB		 571 struct dentry *rts_threshold;
572 struct dentry *fragmentation_threshold;
573 struct dentry *short_retry_limit;
574 struct dentry *long_retry_limit;
575 struct dentry *total_ps_buffered;
576 struct dentry *mode;
577 struct dentry *wep_iv;
e9f207f0
JB		 578 struct dentry *modes;
579 struct dentry *statistics;
580 struct local_debugfsdentries_statsdentries {
581 struct dentry *transmitted_fragment_count;
582 struct dentry *multicast_transmitted_frame_count;
583 struct dentry *failed_count;
584 struct dentry *retry_count;
585 struct dentry *multiple_retry_count;
586 struct dentry *frame_duplicate_count;
587 struct dentry *received_fragment_count;
588 struct dentry *multicast_received_frame_count;
589 struct dentry *transmitted_frame_count;
590 struct dentry *wep_undecryptable_count;
591 struct dentry *num_scans;
592#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
593 struct dentry *tx_handlers_drop;
594 struct dentry *tx_handlers_queued;
595 struct dentry *tx_handlers_drop_unencrypted;
596 struct dentry *tx_handlers_drop_fragment;
597 struct dentry *tx_handlers_drop_wep;
598 struct dentry *tx_handlers_drop_not_assoc;
599 struct dentry *tx_handlers_drop_unauth_port;
600 struct dentry *rx_handlers_drop;
601 struct dentry *rx_handlers_queued;
602 struct dentry *rx_handlers_drop_nullfunc;
603 struct dentry *rx_handlers_drop_defrag;
604 struct dentry *rx_handlers_drop_short;
605 struct dentry *rx_handlers_drop_passive_scan;
606 struct dentry *tx_expand_skb_head;
607 struct dentry *tx_expand_skb_head_cloned;
608 struct dentry *rx_expand_skb_head;
609 struct dentry *rx_expand_skb_head2;
610 struct dentry *rx_handlers_fragments;
611 struct dentry *tx_status_drop;
612 struct dentry *wme_tx_queue;
613 struct dentry *wme_rx_queue;
614#endif
615 struct dentry *dot11ACKFailureCount;
616 struct dentry *dot11RTSFailureCount;
617 struct dentry *dot11FCSErrorCount;
618 struct dentry *dot11RTSSuccessCount;
619 } stats;
620 struct dentry *stations;
621 struct dentry *keys;
622 } debugfs;
623#endif
f0706e82
JB		 624};
625
626static inline struct ieee80211_local *hw_to_local(
627 struct ieee80211_hw *hw)
628{
629 return container_of(hw, struct ieee80211_local, hw);
630}
631
632static inline struct ieee80211_hw *local_to_hw(
633 struct ieee80211_local *local)
634{
635 return &local->hw;
636}
637
638enum ieee80211_link_state_t {
639 IEEE80211_LINK_STATE_XOFF = 0,
640 IEEE80211_LINK_STATE_PENDING,
641};
642
643struct sta_attribute {
644 struct attribute attr;
645 ssize_t (*show)(const struct sta_info *, char *buf);
646 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
647};
648
30ccb088 649static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 650{
651 /*
30ccb088 652 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 653 * so this line may not be changed to use the __set_bit() format.
654 */
30ccb088 655 bss->tim[aid / 8] |= (1 << (aid % 8));
f0706e82
JB		 656}
657
658static inline void bss_tim_set(struct ieee80211_local *local,
30ccb088 659 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 660{
be8755e1 661 read_lock_bh(&local->sta_lock);
f0706e82 662 __bss_tim_set(bss, aid);
be8755e1 663 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 664}
665
30ccb088 666static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 667{
668 /*
30ccb088 669 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 670 * so this line may not be changed to use the __clear_bit() format.
671 */
30ccb088 672 bss->tim[aid / 8] &= ~(1 << (aid % 8));
f0706e82
JB		 673}
674
675static inline void bss_tim_clear(struct ieee80211_local *local,
30ccb088 676 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 677{
be8755e1 678 read_lock_bh(&local->sta_lock);
f0706e82 679 __bss_tim_clear(bss, aid);
be8755e1 680 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 681}
682
683/**
684 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
685 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
686 * @rate: Transmission rate to check, in 100 kbps
687 *
688 * Check if a given rate is an Extended Rate PHY (ERP) rate.
689 */
690static inline int ieee80211_is_erp_rate(int phymode, int rate)
691{
692 if (phymode == MODE_IEEE80211G) {
693 if (rate != 10 && rate != 20 &&
694 rate != 55 && rate != 110)
695 return 1;
696 }
697 return 0;
698}
699
571ecf67
JB		 700static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
701{
702 return compare_ether_addr(raddr, addr) == 0 ||
703 is_broadcast_ether_addr(raddr);
704}
705
706
f0706e82
JB		 707/* ieee80211.c */
708int ieee80211_hw_config(struct ieee80211_local *local);
709int ieee80211_if_config(struct net_device *dev);
710int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 711void ieee80211_prepare_rates(struct ieee80211_local *local,
712 struct ieee80211_hw_mode *mode);
713void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
714int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
715void ieee80211_if_setup(struct net_device *dev);
571ecf67
JB		 716struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
717 int phymode, int hwrate);
d3c990fb
RR		 718int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
719 struct ieee80211_ht_info *req_ht_cap,
720 struct ieee80211_ht_bss_info *req_bss_cap);
f0706e82
JB		 721
722/* ieee80211_ioctl.c */
723extern const struct iw_handler_def ieee80211_iw_handler_def;
724
f0706e82
JB		 725
726/* Least common multiple of the used rates (in 100 kbps). This is used to
727 * calculate rate_inv values for each rate so that only integers are needed. */
728#define CHAN_UTIL_RATE_LCM 95040
729/* 1 usec is 1/8 * (95040/10) = 1188 */
730#define CHAN_UTIL_PER_USEC 1188
731/* Amount of bits to shift the result right to scale the total utilization
732 * to values that will not wrap around 32-bit integers. */
733#define CHAN_UTIL_SHIFT 9
734/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
735 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
736 * raw value with about 23 should give utilization in 10th of a percentage
737 * (1/1000). However, utilization is only estimated and not all intervals
738 * between frames etc. are calculated. 18 seems to give numbers that are closer
739 * to the real maximum. */
740#define CHAN_UTIL_PER_10MS 18
741#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
742#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
743
744
745/* ieee80211_ioctl.c */
746int ieee80211_set_compression(struct ieee80211_local *local,
747 struct net_device *dev, struct sta_info *sta);
f0706e82
JB		 748int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
749/* ieee80211_sta.c */
750void ieee80211_sta_timer(unsigned long data);
751void ieee80211_sta_work(struct work_struct *work);
752void ieee80211_sta_scan_work(struct work_struct *work);
753void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
754 struct ieee80211_rx_status *rx_status);
755int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
756int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
757int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
758int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
759void ieee80211_sta_req_auth(struct net_device *dev,
760 struct ieee80211_if_sta *ifsta);
761int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
ece8eddd
ZY		 762ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
763 struct sk_buff *skb,
f0706e82
JB		 764 struct ieee80211_rx_status *rx_status);
765void ieee80211_rx_bss_list_init(struct net_device *dev);
766void ieee80211_rx_bss_list_deinit(struct net_device *dev);
767int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
768struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
769 struct sk_buff *skb, u8 *bssid,
770 u8 *addr);
771int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
772int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
d9430a32
DD		 773void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
774void ieee80211_reset_erp_info(struct net_device *dev);
c7153508
RR		 775int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
776 struct ieee80211_ht_info *ht_info);
777int ieee80211_ht_addt_info_ie_to_ht_bss_info(
778 struct ieee80211_ht_addt_info *ht_add_info_ie,
779 struct ieee80211_ht_bss_info *bss_info);
07db2183
RR		 780void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
781 u16 tid, u16 initiator, u16 reason);
782void sta_rx_agg_session_timer_expired(unsigned long data);
f0706e82
JB		 783/* ieee80211_iface.c */
784int ieee80211_if_add(struct net_device *dev, const char *name,
785 struct net_device **new_dev, int type);
786void ieee80211_if_set_type(struct net_device *dev, int type);
787void ieee80211_if_reinit(struct net_device *dev);
788void __ieee80211_if_del(struct ieee80211_local *local,
789 struct ieee80211_sub_if_data *sdata);
790int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
791void ieee80211_if_free(struct net_device *dev);
792void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
f0706e82 793
fd8bacc9
DD		 794/* regdomain.c */
795void ieee80211_regdomain_init(void);
796void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
797
571ecf67
JB		 798/* rx handling */
799extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
800extern ieee80211_rx_handler ieee80211_rx_handlers[];
801
e2ebc74d
JB		 802/* tx handling */
803extern ieee80211_tx_handler ieee80211_tx_handlers[];
804void ieee80211_clear_tx_pending(struct ieee80211_local *local);
805void ieee80211_tx_pending(unsigned long data);
806int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
807int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
808int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
e2ebc74d 809
c2d1560a
JB		 810/* utility functions/constants */
811extern void *mac80211_wiphy_privid; /* for wiphy privid */
812extern const unsigned char rfc1042_header[6];
813extern const unsigned char bridge_tunnel_header[6];
71364716
RR		 814u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
815 enum ieee80211_if_types type);
c2d1560a
JB		 816int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
817 int rate, int erp, int short_preamble);
eb063c17
JB		 818void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
819 struct ieee80211_hdr *hdr);
f0706e82
JB		 820
821#endif /* IEEE80211_I_H */
Linux 6.x block layer and io_uring tree(s)