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mac80211: adding 802.11n HT framework definitions
[mirror_ubuntu-jammy-kernel.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;
92#define IEEE80211_MAX_SUPP_RATES 32
93 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
94 size_t supp_rates_len;
95 int beacon_int;
96 u64 timestamp;
97
98 int probe_resp;
99 unsigned long last_update;
100
5628221c
DD		 101 /* during assocation, we save an ERP value from a probe response so
102 * that we can feed ERP info to the driver when handling the
103 * association completes. these fields probably won't be up-to-date
104 * otherwise, you probably don't want to use them. */
105 int has_erp_value;
106 u8 erp_value;
f0706e82
JB		 107};
108
109
110typedef enum {
111 TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
112} ieee80211_txrx_result;
113
badffb72
JS		 114/* flags used in struct ieee80211_txrx_data.flags */
115/* whether the MSDU was fragmented */
116#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
117#define IEEE80211_TXRXD_TXUNICAST BIT(1)
118#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
119#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
120#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
121/* frame is destined to interface currently processed (incl. multicast frames) */
122#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
58d4185e 123#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
f0706e82
JB		 124struct ieee80211_txrx_data {
125 struct sk_buff *skb;
126 struct net_device *dev;
127 struct ieee80211_local *local;
128 struct ieee80211_sub_if_data *sdata;
129 struct sta_info *sta;
130 u16 fc, ethertype;
131 struct ieee80211_key *key;
badffb72 132 unsigned int flags;
f0706e82
JB		 133 union {
134 struct {
135 struct ieee80211_tx_control *control;
f0706e82
JB		 136 struct ieee80211_hw_mode *mode;
137 struct ieee80211_rate *rate;
138 /* use this rate (if set) for last fragment; rate can
139 * be set to lower rate for the first fragments, e.g.,
140 * when using CTS protection with IEEE 802.11g. */
141 struct ieee80211_rate *last_frag_rate;
142 int last_frag_hwrate;
f0706e82
JB		 143
144 /* Extra fragments (in addition to the first fragment
145 * in skb) */
146 int num_extra_frag;
147 struct sk_buff **extra_frag;
148 } tx;
149 struct {
150 struct ieee80211_rx_status *status;
151 int sent_ps_buffered;
152 int queue;
153 int load;
50741ae0
JB		 154 u32 tkip_iv32;
155 u16 tkip_iv16;
f0706e82
JB		 156 } rx;
157 } u;
158};
159
e8bf9649
JS		 160/* flags used in struct ieee80211_tx_packet_data.flags */
161#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
162#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
163#define IEEE80211_TXPD_REQUEUE BIT(2)
f0706e82
JB		 164/* Stored in sk_buff->cb */
165struct ieee80211_tx_packet_data {
166 int ifindex;
167 unsigned long jiffies;
e8bf9649
JS		 168 unsigned int flags;
169 u8 queue;
f0706e82
JB		 170};
171
172struct ieee80211_tx_stored_packet {
173 struct ieee80211_tx_control control;
174 struct sk_buff *skb;
175 int num_extra_frag;
176 struct sk_buff **extra_frag;
177 int last_frag_rateidx;
178 int last_frag_hwrate;
179 struct ieee80211_rate *last_frag_rate;
badffb72 180 unsigned int last_frag_rate_ctrl_probe;
f0706e82
JB		 181};
182
183typedef ieee80211_txrx_result (*ieee80211_tx_handler)
184(struct ieee80211_txrx_data *tx);
185
186typedef ieee80211_txrx_result (*ieee80211_rx_handler)
187(struct ieee80211_txrx_data *rx);
188
189struct ieee80211_if_ap {
190 u8 *beacon_head, *beacon_tail;
191 int beacon_head_len, beacon_tail_len;
192
0ec3ca44
JB		 193 struct list_head vlans;
194
f0706e82
JB		 195 u8 ssid[IEEE80211_MAX_SSID_LEN];
196 size_t ssid_len;
f0706e82
JB		 197
198 /* yes, this looks ugly, but guarantees that we can later use
199 * bitmap_empty :)
200 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
201 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
202 atomic_t num_sta_ps; /* number of stations in PS mode */
203 struct sk_buff_head ps_bc_buf;
204 int dtim_period, dtim_count;
205 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
206 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
207 int num_beacons; /* number of TXed beacon frames for this BSS */
208};
209
210struct ieee80211_if_wds {
211 u8 remote_addr[ETH_ALEN];
212 struct sta_info *sta;
213};
214
215struct ieee80211_if_vlan {
0ec3ca44
JB		 216 struct ieee80211_sub_if_data *ap;
217 struct list_head list;
f0706e82
JB		 218};
219
d6f2da5b
JS		 220/* flags used in struct ieee80211_if_sta.flags */
221#define IEEE80211_STA_SSID_SET BIT(0)
222#define IEEE80211_STA_BSSID_SET BIT(1)
223#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
224#define IEEE80211_STA_AUTHENTICATED BIT(3)
225#define IEEE80211_STA_ASSOCIATED BIT(4)
226#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
227#define IEEE80211_STA_CREATE_IBSS BIT(6)
228#define IEEE80211_STA_MIXED_CELL BIT(7)
229#define IEEE80211_STA_WMM_ENABLED BIT(8)
230#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
231#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
232#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
5b98b1f7 233#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
f0706e82
JB		 234struct ieee80211_if_sta {
235 enum {
236 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
237 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
238 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
239 } state;
240 struct timer_list timer;
241 struct work_struct work;
242 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
243 u8 ssid[IEEE80211_MAX_SSID_LEN];
244 size_t ssid_len;
a0af5f14
HS		 245 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
246 size_t scan_ssid_len;
f0706e82
JB		 247 u16 aid;
248 u16 ap_capab, capab;
249 u8 *extra_ie; /* to be added to the end of AssocReq */
250 size_t extra_ie_len;
251
252 /* The last AssocReq/Resp IEs */
253 u8 *assocreq_ies, *assocresp_ies;
254 size_t assocreq_ies_len, assocresp_ies_len;
255
256 int auth_tries, assoc_tries;
257
d6f2da5b 258 unsigned int flags;
f0706e82
JB		 259#define IEEE80211_STA_REQ_SCAN 0
260#define IEEE80211_STA_REQ_AUTH 1
261#define IEEE80211_STA_REQ_RUN 2
262 unsigned long request;
263 struct sk_buff_head skb_queue;
264
f0706e82
JB		 265 unsigned long last_probe;
266
267#define IEEE80211_AUTH_ALG_OPEN BIT(0)
268#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
269#define IEEE80211_AUTH_ALG_LEAP BIT(2)
270 unsigned int auth_algs; /* bitfield of allowed auth algs */
271 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
272 int auth_transaction;
273
274 unsigned long ibss_join_req;
275 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
276 u32 supp_rates_bits;
277
278 int wmm_last_param_set;
279};
280
281
13262ffd
JS		 282/* flags used in struct ieee80211_sub_if_data.flags */
283#define IEEE80211_SDATA_ALLMULTI BIT(0)
284#define IEEE80211_SDATA_PROMISC BIT(1)
285#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
286/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
287 * generator reports that there are no present stations that cannot support short
288 * preambles */
289#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
ddd3d2be 290#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
f0706e82
JB		 291struct ieee80211_sub_if_data {
292 struct list_head list;
fb1c1cd6 293 enum ieee80211_if_types type;
f0706e82
JB		 294
295 struct wireless_dev wdev;
296
11a843b7
JB		 297 /* keys */
298 struct list_head key_list;
299
f0706e82
JB		 300 struct net_device *dev;
301 struct ieee80211_local *local;
302
13262ffd 303 unsigned int flags;
7e9ed188 304
f0706e82
JB		 305 int drop_unencrypted;
306 int eapol; /* 0 = process EAPOL frames as normal data frames,
307 * 1 = send EAPOL frames through wlan#ap to hostapd
308 * (default) */
309 int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
310 * port */
311
312 u16 sequence;
313
314 /* Fragment table for host-based reassembly */
315 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
316 unsigned int fragment_next;
317
318#define NUM_DEFAULT_KEYS 4
319 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
320 struct ieee80211_key *default_key;
321
322 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
323
324 union {
325 struct ieee80211_if_ap ap;
326 struct ieee80211_if_wds wds;
327 struct ieee80211_if_vlan vlan;
328 struct ieee80211_if_sta sta;
329 } u;
330 int channel_use;
331 int channel_use_raw;
e9f207f0
JB		 332
333#ifdef CONFIG_MAC80211_DEBUGFS
334 struct dentry *debugfsdir;
335 union {
336 struct {
337 struct dentry *channel_use;
338 struct dentry *drop_unencrypted;
339 struct dentry *eapol;
340 struct dentry *ieee8021_x;
341 struct dentry *state;
342 struct dentry *bssid;
343 struct dentry *prev_bssid;
344 struct dentry *ssid_len;
345 struct dentry *aid;
346 struct dentry *ap_capab;
347 struct dentry *capab;
348 struct dentry *extra_ie_len;
349 struct dentry *auth_tries;
350 struct dentry *assoc_tries;
351 struct dentry *auth_algs;
352 struct dentry *auth_alg;
353 struct dentry *auth_transaction;
354 struct dentry *flags;
355 } sta;
356 struct {
357 struct dentry *channel_use;
358 struct dentry *drop_unencrypted;
359 struct dentry *eapol;
360 struct dentry *ieee8021_x;
361 struct dentry *num_sta_ps;
362 struct dentry *dtim_period;
363 struct dentry *dtim_count;
364 struct dentry *num_beacons;
365 struct dentry *force_unicast_rateidx;
366 struct dentry *max_ratectrl_rateidx;
367 struct dentry *num_buffered_multicast;
368 struct dentry *beacon_head_len;
369 struct dentry *beacon_tail_len;
370 } ap;
371 struct {
372 struct dentry *channel_use;
373 struct dentry *drop_unencrypted;
374 struct dentry *eapol;
375 struct dentry *ieee8021_x;
376 struct dentry *peer;
377 } wds;
378 struct {
379 struct dentry *channel_use;
380 struct dentry *drop_unencrypted;
381 struct dentry *eapol;
382 struct dentry *ieee8021_x;
e9f207f0
JB		 383 } vlan;
384 struct {
385 struct dentry *mode;
386 } monitor;
387 struct dentry *default_key;
388 } debugfs;
389#endif
f0706e82
JB		 390};
391
392#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
393
394enum {
395 IEEE80211_RX_MSG = 1,
396 IEEE80211_TX_STATUS_MSG = 2,
397};
398
399struct ieee80211_local {
400 /* embed the driver visible part.
401 * don't cast (use the static inlines below), but we keep
402 * it first anyway so they become a no-op */
403 struct ieee80211_hw hw;
404
405 const struct ieee80211_ops *ops;
406
407 /* List of registered struct ieee80211_hw_mode */
408 struct list_head modes_list;
409
410 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
f0706e82
JB		 411 int open_count;
412 int monitors;
4150c572 413 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 414 struct iw_statistics wstats;
415 u8 wstats_flags;
b306f453 416 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 417
418 enum {
419 IEEE80211_DEV_UNINITIALIZED = 0,
420 IEEE80211_DEV_REGISTERED,
421 IEEE80211_DEV_UNREGISTERED,
422 } reg_state;
423
424 /* Tasklet and skb queue to process calls from IRQ mode. All frames
425 * added to skb_queue will be processed, but frames in
426 * skb_queue_unreliable may be dropped if the total length of these
427 * queues increases over the limit. */
428#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
429 struct tasklet_struct tasklet;
430 struct sk_buff_head skb_queue;
431 struct sk_buff_head skb_queue_unreliable;
432
433 /* Station data structures */
be8755e1 434 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 435 int num_sta; /* number of stations in sta_list */
436 struct list_head sta_list;
f0706e82
JB		 437 struct sta_info *sta_hash[STA_HASH_SIZE];
438 struct timer_list sta_cleanup;
439
440 unsigned long state[NUM_TX_DATA_QUEUES];
441 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
442 struct tasklet_struct tx_pending_tasklet;
443
53918994
JB		 444 /* number of interfaces with corresponding IFF_ flags */
445 atomic_t iff_allmultis, iff_promiscs;
f0706e82
JB		 446
447 struct rate_control_ref *rate_ctrl;
448
f0706e82
JB		 449 /* Supported and basic rate filters for different modes. These are
450 * pointers to -1 terminated lists and rates in 100 kbps units. */
451 int *supp_rates[NUM_IEEE80211_MODES];
452 int *basic_rates[NUM_IEEE80211_MODES];
453
454 int rts_threshold;
f0706e82
JB		 455 int fragmentation_threshold;
456 int short_retry_limit; /* dot11ShortRetryLimit */
457 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 458
459 struct crypto_blkcipher *wep_tx_tfm;
460 struct crypto_blkcipher *wep_rx_tfm;
461 u32 wep_iv;
f0706e82
JB		 462
463 int bridge_packets; /* bridge packets between associated stations and
464 * deliver multicast frames both back to wireless
465 * media and to the local net stack */
466
467 ieee80211_rx_handler *rx_pre_handlers;
468 ieee80211_rx_handler *rx_handlers;
469 ieee80211_tx_handler *tx_handlers;
470
79010420
JB		 471 struct list_head interfaces;
472
ece8eddd
ZY		 473 bool sta_sw_scanning;
474 bool sta_hw_scanning;
f0706e82
JB		 475 int scan_channel_idx;
476 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
477 unsigned long last_scan_completed;
478 struct delayed_work scan_work;
479 struct net_device *scan_dev;
480 struct ieee80211_channel *oper_channel, *scan_channel;
481 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
482 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
483 size_t scan_ssid_len;
484 struct list_head sta_bss_list;
485 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
486 spinlock_t sta_bss_lock;
f0706e82
JB		 487
488 /* SNMP counters */
489 /* dot11CountersTable */
490 u32 dot11TransmittedFragmentCount;
491 u32 dot11MulticastTransmittedFrameCount;
492 u32 dot11FailedCount;
493 u32 dot11RetryCount;
494 u32 dot11MultipleRetryCount;
495 u32 dot11FrameDuplicateCount;
496 u32 dot11ReceivedFragmentCount;
497 u32 dot11MulticastReceivedFrameCount;
498 u32 dot11TransmittedFrameCount;
499 u32 dot11WEPUndecryptableCount;
500
501#ifdef CONFIG_MAC80211_LEDS
502 int tx_led_counter, rx_led_counter;
47f0c502
MB		 503 struct led_trigger *tx_led, *rx_led, *assoc_led;
504 char tx_led_name[32], rx_led_name[32], assoc_led_name[32];
f0706e82
JB		 505#endif
506
507 u32 channel_use;
508 u32 channel_use_raw;
f0706e82 509
e9f207f0
JB		 510#ifdef CONFIG_MAC80211_DEBUGFS
511 struct work_struct sta_debugfs_add;
512#endif
513
f0706e82
JB		 514#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
515 /* TX/RX handler statistics */
516 unsigned int tx_handlers_drop;
517 unsigned int tx_handlers_queued;
518 unsigned int tx_handlers_drop_unencrypted;
519 unsigned int tx_handlers_drop_fragment;
520 unsigned int tx_handlers_drop_wep;
521 unsigned int tx_handlers_drop_not_assoc;
522 unsigned int tx_handlers_drop_unauth_port;
523 unsigned int rx_handlers_drop;
524 unsigned int rx_handlers_queued;
525 unsigned int rx_handlers_drop_nullfunc;
526 unsigned int rx_handlers_drop_defrag;
527 unsigned int rx_handlers_drop_short;
528 unsigned int rx_handlers_drop_passive_scan;
529 unsigned int tx_expand_skb_head;
530 unsigned int tx_expand_skb_head_cloned;
531 unsigned int rx_expand_skb_head;
532 unsigned int rx_expand_skb_head2;
533 unsigned int rx_handlers_fragments;
534 unsigned int tx_status_drop;
535 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
536 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
537#define I802_DEBUG_INC(c) (c)++
538#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
539#define I802_DEBUG_INC(c) do { } while (0)
540#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
541
542
f0706e82
JB		 543 int total_ps_buffered; /* total number of all buffered unicast and
544 * multicast packets for power saving stations
545 */
f0706e82
JB		 546 int wifi_wme_noack_test;
547 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
548
549 unsigned int enabled_modes; /* bitfield of allowed modes;
550 * (1 << MODE_*) */
551 unsigned int hw_modes; /* bitfield of supported hardware modes;
552 * (1 << MODE_*) */
553
e9f207f0
JB		 554#ifdef CONFIG_MAC80211_DEBUGFS
555 struct local_debugfsdentries {
556 struct dentry *channel;
557 struct dentry *frequency;
e9f207f0
JB		 558 struct dentry *antenna_sel_tx;
559 struct dentry *antenna_sel_rx;
560 struct dentry *bridge_packets;
e9f207f0
JB		 561 struct dentry *rts_threshold;
562 struct dentry *fragmentation_threshold;
563 struct dentry *short_retry_limit;
564 struct dentry *long_retry_limit;
565 struct dentry *total_ps_buffered;
566 struct dentry *mode;
567 struct dentry *wep_iv;
e9f207f0
JB		 568 struct dentry *modes;
569 struct dentry *statistics;
570 struct local_debugfsdentries_statsdentries {
571 struct dentry *transmitted_fragment_count;
572 struct dentry *multicast_transmitted_frame_count;
573 struct dentry *failed_count;
574 struct dentry *retry_count;
575 struct dentry *multiple_retry_count;
576 struct dentry *frame_duplicate_count;
577 struct dentry *received_fragment_count;
578 struct dentry *multicast_received_frame_count;
579 struct dentry *transmitted_frame_count;
580 struct dentry *wep_undecryptable_count;
581 struct dentry *num_scans;
582#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
583 struct dentry *tx_handlers_drop;
584 struct dentry *tx_handlers_queued;
585 struct dentry *tx_handlers_drop_unencrypted;
586 struct dentry *tx_handlers_drop_fragment;
587 struct dentry *tx_handlers_drop_wep;
588 struct dentry *tx_handlers_drop_not_assoc;
589 struct dentry *tx_handlers_drop_unauth_port;
590 struct dentry *rx_handlers_drop;
591 struct dentry *rx_handlers_queued;
592 struct dentry *rx_handlers_drop_nullfunc;
593 struct dentry *rx_handlers_drop_defrag;
594 struct dentry *rx_handlers_drop_short;
595 struct dentry *rx_handlers_drop_passive_scan;
596 struct dentry *tx_expand_skb_head;
597 struct dentry *tx_expand_skb_head_cloned;
598 struct dentry *rx_expand_skb_head;
599 struct dentry *rx_expand_skb_head2;
600 struct dentry *rx_handlers_fragments;
601 struct dentry *tx_status_drop;
602 struct dentry *wme_tx_queue;
603 struct dentry *wme_rx_queue;
604#endif
605 struct dentry *dot11ACKFailureCount;
606 struct dentry *dot11RTSFailureCount;
607 struct dentry *dot11FCSErrorCount;
608 struct dentry *dot11RTSSuccessCount;
609 } stats;
610 struct dentry *stations;
611 struct dentry *keys;
612 } debugfs;
613#endif
f0706e82
JB		 614};
615
616static inline struct ieee80211_local *hw_to_local(
617 struct ieee80211_hw *hw)
618{
619 return container_of(hw, struct ieee80211_local, hw);
620}
621
622static inline struct ieee80211_hw *local_to_hw(
623 struct ieee80211_local *local)
624{
625 return &local->hw;
626}
627
628enum ieee80211_link_state_t {
629 IEEE80211_LINK_STATE_XOFF = 0,
630 IEEE80211_LINK_STATE_PENDING,
631};
632
633struct sta_attribute {
634 struct attribute attr;
635 ssize_t (*show)(const struct sta_info *, char *buf);
636 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
637};
638
30ccb088 639static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 640{
641 /*
30ccb088 642 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 643 * so this line may not be changed to use the __set_bit() format.
644 */
30ccb088 645 bss->tim[aid / 8] |= (1 << (aid % 8));
f0706e82
JB		 646}
647
648static inline void bss_tim_set(struct ieee80211_local *local,
30ccb088 649 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 650{
be8755e1 651 read_lock_bh(&local->sta_lock);
f0706e82 652 __bss_tim_set(bss, aid);
be8755e1 653 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 654}
655
30ccb088 656static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 657{
658 /*
30ccb088 659 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 660 * so this line may not be changed to use the __clear_bit() format.
661 */
30ccb088 662 bss->tim[aid / 8] &= ~(1 << (aid % 8));
f0706e82
JB		 663}
664
665static inline void bss_tim_clear(struct ieee80211_local *local,
30ccb088 666 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 667{
be8755e1 668 read_lock_bh(&local->sta_lock);
f0706e82 669 __bss_tim_clear(bss, aid);
be8755e1 670 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 671}
672
673/**
674 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
675 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
676 * @rate: Transmission rate to check, in 100 kbps
677 *
678 * Check if a given rate is an Extended Rate PHY (ERP) rate.
679 */
680static inline int ieee80211_is_erp_rate(int phymode, int rate)
681{
682 if (phymode == MODE_IEEE80211G) {
683 if (rate != 10 && rate != 20 &&
684 rate != 55 && rate != 110)
685 return 1;
686 }
687 return 0;
688}
689
571ecf67
JB		 690static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
691{
692 return compare_ether_addr(raddr, addr) == 0 ||
693 is_broadcast_ether_addr(raddr);
694}
695
696
f0706e82
JB		 697/* ieee80211.c */
698int ieee80211_hw_config(struct ieee80211_local *local);
699int ieee80211_if_config(struct net_device *dev);
700int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 701void ieee80211_prepare_rates(struct ieee80211_local *local,
702 struct ieee80211_hw_mode *mode);
703void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
704int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
705void ieee80211_if_setup(struct net_device *dev);
571ecf67
JB		 706struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
707 int phymode, int hwrate);
f0706e82
JB		 708
709/* ieee80211_ioctl.c */
710extern const struct iw_handler_def ieee80211_iw_handler_def;
711
f0706e82
JB		 712
713/* Least common multiple of the used rates (in 100 kbps). This is used to
714 * calculate rate_inv values for each rate so that only integers are needed. */
715#define CHAN_UTIL_RATE_LCM 95040
716/* 1 usec is 1/8 * (95040/10) = 1188 */
717#define CHAN_UTIL_PER_USEC 1188
718/* Amount of bits to shift the result right to scale the total utilization
719 * to values that will not wrap around 32-bit integers. */
720#define CHAN_UTIL_SHIFT 9
721/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
722 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
723 * raw value with about 23 should give utilization in 10th of a percentage
724 * (1/1000). However, utilization is only estimated and not all intervals
725 * between frames etc. are calculated. 18 seems to give numbers that are closer
726 * to the real maximum. */
727#define CHAN_UTIL_PER_10MS 18
728#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
729#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
730
731
732/* ieee80211_ioctl.c */
733int ieee80211_set_compression(struct ieee80211_local *local,
734 struct net_device *dev, struct sta_info *sta);
f0706e82
JB		 735int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
736/* ieee80211_sta.c */
737void ieee80211_sta_timer(unsigned long data);
738void ieee80211_sta_work(struct work_struct *work);
739void ieee80211_sta_scan_work(struct work_struct *work);
740void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
741 struct ieee80211_rx_status *rx_status);
742int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
743int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
744int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
745int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
746void ieee80211_sta_req_auth(struct net_device *dev,
747 struct ieee80211_if_sta *ifsta);
748int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
ece8eddd
ZY		 749ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
750 struct sk_buff *skb,
f0706e82
JB		 751 struct ieee80211_rx_status *rx_status);
752void ieee80211_rx_bss_list_init(struct net_device *dev);
753void ieee80211_rx_bss_list_deinit(struct net_device *dev);
754int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
755struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
756 struct sk_buff *skb, u8 *bssid,
757 u8 *addr);
758int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
759int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
d9430a32
DD		 760void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
761void ieee80211_reset_erp_info(struct net_device *dev);
f0706e82
JB		 762
763/* ieee80211_iface.c */
764int ieee80211_if_add(struct net_device *dev, const char *name,
765 struct net_device **new_dev, int type);
766void ieee80211_if_set_type(struct net_device *dev, int type);
767void ieee80211_if_reinit(struct net_device *dev);
768void __ieee80211_if_del(struct ieee80211_local *local,
769 struct ieee80211_sub_if_data *sdata);
770int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
771void ieee80211_if_free(struct net_device *dev);
772void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
f0706e82 773
fd8bacc9
DD		 774/* regdomain.c */
775void ieee80211_regdomain_init(void);
776void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
777
571ecf67
JB		 778/* rx handling */
779extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
780extern ieee80211_rx_handler ieee80211_rx_handlers[];
781
e2ebc74d
JB		 782/* tx handling */
783extern ieee80211_tx_handler ieee80211_tx_handlers[];
784void ieee80211_clear_tx_pending(struct ieee80211_local *local);
785void ieee80211_tx_pending(unsigned long data);
786int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
787int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
788int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
e2ebc74d 789
c2d1560a
JB		 790/* utility functions/constants */
791extern void *mac80211_wiphy_privid; /* for wiphy privid */
792extern const unsigned char rfc1042_header[6];
793extern const unsigned char bridge_tunnel_header[6];
794u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
76ee65bf 795int ieee80211_is_eapol(const struct sk_buff *skb, int hdrlen);
c2d1560a
JB		 796int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
797 int rate, int erp, int short_preamble);
eb063c17
JB		 798void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
799 struct ieee80211_hdr *hdr);
f0706e82
JB		 800
801#endif /* IEEE80211_I_H */
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