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[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;
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)
f0706e82
JB		 167/* Stored in sk_buff->cb */
168struct ieee80211_tx_packet_data {
169 int ifindex;
170 unsigned long jiffies;
e8bf9649
JS		 171 unsigned int flags;
172 u8 queue;
f0706e82
JB		 173};
174
175struct ieee80211_tx_stored_packet {
176 struct ieee80211_tx_control control;
177 struct sk_buff *skb;
178 int num_extra_frag;
179 struct sk_buff **extra_frag;
180 int last_frag_rateidx;
181 int last_frag_hwrate;
182 struct ieee80211_rate *last_frag_rate;
badffb72 183 unsigned int last_frag_rate_ctrl_probe;
f0706e82
JB		 184};
185
186typedef ieee80211_txrx_result (*ieee80211_tx_handler)
187(struct ieee80211_txrx_data *tx);
188
189typedef ieee80211_txrx_result (*ieee80211_rx_handler)
190(struct ieee80211_txrx_data *rx);
191
192struct ieee80211_if_ap {
193 u8 *beacon_head, *beacon_tail;
194 int beacon_head_len, beacon_tail_len;
195
0ec3ca44
JB		 196 struct list_head vlans;
197
f0706e82
JB		 198 u8 ssid[IEEE80211_MAX_SSID_LEN];
199 size_t ssid_len;
f0706e82
JB		 200
201 /* yes, this looks ugly, but guarantees that we can later use
202 * bitmap_empty :)
203 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
204 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
205 atomic_t num_sta_ps; /* number of stations in PS mode */
206 struct sk_buff_head ps_bc_buf;
207 int dtim_period, dtim_count;
208 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
209 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
210 int num_beacons; /* number of TXed beacon frames for this BSS */
211};
212
213struct ieee80211_if_wds {
214 u8 remote_addr[ETH_ALEN];
215 struct sta_info *sta;
216};
217
218struct ieee80211_if_vlan {
0ec3ca44
JB		 219 struct ieee80211_sub_if_data *ap;
220 struct list_head list;
f0706e82
JB		 221};
222
d6f2da5b
JS		 223/* flags used in struct ieee80211_if_sta.flags */
224#define IEEE80211_STA_SSID_SET BIT(0)
225#define IEEE80211_STA_BSSID_SET BIT(1)
226#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
227#define IEEE80211_STA_AUTHENTICATED BIT(3)
228#define IEEE80211_STA_ASSOCIATED BIT(4)
229#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
230#define IEEE80211_STA_CREATE_IBSS BIT(6)
231#define IEEE80211_STA_MIXED_CELL BIT(7)
232#define IEEE80211_STA_WMM_ENABLED BIT(8)
233#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
234#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
235#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
5b98b1f7 236#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
f0706e82
JB		 237struct ieee80211_if_sta {
238 enum {
239 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
240 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
241 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
242 } state;
243 struct timer_list timer;
244 struct work_struct work;
245 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
246 u8 ssid[IEEE80211_MAX_SSID_LEN];
247 size_t ssid_len;
a0af5f14
HS		 248 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
249 size_t scan_ssid_len;
f0706e82
JB		 250 u16 aid;
251 u16 ap_capab, capab;
252 u8 *extra_ie; /* to be added to the end of AssocReq */
253 size_t extra_ie_len;
254
255 /* The last AssocReq/Resp IEs */
256 u8 *assocreq_ies, *assocresp_ies;
257 size_t assocreq_ies_len, assocresp_ies_len;
258
259 int auth_tries, assoc_tries;
260
d6f2da5b 261 unsigned int flags;
f0706e82
JB		 262#define IEEE80211_STA_REQ_SCAN 0
263#define IEEE80211_STA_REQ_AUTH 1
264#define IEEE80211_STA_REQ_RUN 2
265 unsigned long request;
266 struct sk_buff_head skb_queue;
267
f0706e82
JB		 268 unsigned long last_probe;
269
270#define IEEE80211_AUTH_ALG_OPEN BIT(0)
271#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
272#define IEEE80211_AUTH_ALG_LEAP BIT(2)
273 unsigned int auth_algs; /* bitfield of allowed auth algs */
274 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
275 int auth_transaction;
276
277 unsigned long ibss_join_req;
278 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
279 u32 supp_rates_bits;
280
281 int wmm_last_param_set;
282};
283
284
13262ffd
JS		 285/* flags used in struct ieee80211_sub_if_data.flags */
286#define IEEE80211_SDATA_ALLMULTI BIT(0)
287#define IEEE80211_SDATA_PROMISC BIT(1)
288#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
289/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
290 * generator reports that there are no present stations that cannot support short
291 * preambles */
292#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
ddd3d2be 293#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
f0706e82
JB		 294struct ieee80211_sub_if_data {
295 struct list_head list;
fb1c1cd6 296 enum ieee80211_if_types type;
f0706e82
JB		 297
298 struct wireless_dev wdev;
299
11a843b7
JB		 300 /* keys */
301 struct list_head key_list;
302
f0706e82
JB		 303 struct net_device *dev;
304 struct ieee80211_local *local;
305
13262ffd 306 unsigned int flags;
7e9ed188 307
f0706e82
JB		 308 int drop_unencrypted;
309 int eapol; /* 0 = process EAPOL frames as normal data frames,
310 * 1 = send EAPOL frames through wlan#ap to hostapd
311 * (default) */
312 int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
313 * port */
314
315 u16 sequence;
316
317 /* Fragment table for host-based reassembly */
318 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
319 unsigned int fragment_next;
320
321#define NUM_DEFAULT_KEYS 4
322 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
323 struct ieee80211_key *default_key;
324
325 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
326
327 union {
328 struct ieee80211_if_ap ap;
329 struct ieee80211_if_wds wds;
330 struct ieee80211_if_vlan vlan;
331 struct ieee80211_if_sta sta;
332 } u;
333 int channel_use;
334 int channel_use_raw;
e9f207f0
JB		 335
336#ifdef CONFIG_MAC80211_DEBUGFS
337 struct dentry *debugfsdir;
338 union {
339 struct {
340 struct dentry *channel_use;
341 struct dentry *drop_unencrypted;
342 struct dentry *eapol;
343 struct dentry *ieee8021_x;
344 struct dentry *state;
345 struct dentry *bssid;
346 struct dentry *prev_bssid;
347 struct dentry *ssid_len;
348 struct dentry *aid;
349 struct dentry *ap_capab;
350 struct dentry *capab;
351 struct dentry *extra_ie_len;
352 struct dentry *auth_tries;
353 struct dentry *assoc_tries;
354 struct dentry *auth_algs;
355 struct dentry *auth_alg;
356 struct dentry *auth_transaction;
357 struct dentry *flags;
358 } sta;
359 struct {
360 struct dentry *channel_use;
361 struct dentry *drop_unencrypted;
362 struct dentry *eapol;
363 struct dentry *ieee8021_x;
364 struct dentry *num_sta_ps;
365 struct dentry *dtim_period;
366 struct dentry *dtim_count;
367 struct dentry *num_beacons;
368 struct dentry *force_unicast_rateidx;
369 struct dentry *max_ratectrl_rateidx;
370 struct dentry *num_buffered_multicast;
371 struct dentry *beacon_head_len;
372 struct dentry *beacon_tail_len;
373 } ap;
374 struct {
375 struct dentry *channel_use;
376 struct dentry *drop_unencrypted;
377 struct dentry *eapol;
378 struct dentry *ieee8021_x;
379 struct dentry *peer;
380 } wds;
381 struct {
382 struct dentry *channel_use;
383 struct dentry *drop_unencrypted;
384 struct dentry *eapol;
385 struct dentry *ieee8021_x;
e9f207f0
JB		 386 } vlan;
387 struct {
388 struct dentry *mode;
389 } monitor;
390 struct dentry *default_key;
391 } debugfs;
392#endif
f0706e82
JB		 393};
394
395#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
396
397enum {
398 IEEE80211_RX_MSG = 1,
399 IEEE80211_TX_STATUS_MSG = 2,
400};
401
402struct ieee80211_local {
403 /* embed the driver visible part.
404 * don't cast (use the static inlines below), but we keep
405 * it first anyway so they become a no-op */
406 struct ieee80211_hw hw;
407
408 const struct ieee80211_ops *ops;
409
410 /* List of registered struct ieee80211_hw_mode */
411 struct list_head modes_list;
412
413 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
f0706e82
JB		 414 int open_count;
415 int monitors;
4150c572 416 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 417 struct iw_statistics wstats;
418 u8 wstats_flags;
b306f453 419 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 420
421 enum {
422 IEEE80211_DEV_UNINITIALIZED = 0,
423 IEEE80211_DEV_REGISTERED,
424 IEEE80211_DEV_UNREGISTERED,
425 } reg_state;
426
427 /* Tasklet and skb queue to process calls from IRQ mode. All frames
428 * added to skb_queue will be processed, but frames in
429 * skb_queue_unreliable may be dropped if the total length of these
430 * queues increases over the limit. */
431#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
432 struct tasklet_struct tasklet;
433 struct sk_buff_head skb_queue;
434 struct sk_buff_head skb_queue_unreliable;
435
436 /* Station data structures */
be8755e1 437 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 438 int num_sta; /* number of stations in sta_list */
439 struct list_head sta_list;
f0706e82
JB		 440 struct sta_info *sta_hash[STA_HASH_SIZE];
441 struct timer_list sta_cleanup;
442
443 unsigned long state[NUM_TX_DATA_QUEUES];
444 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
445 struct tasklet_struct tx_pending_tasklet;
446
53918994
JB		 447 /* number of interfaces with corresponding IFF_ flags */
448 atomic_t iff_allmultis, iff_promiscs;
f0706e82
JB		 449
450 struct rate_control_ref *rate_ctrl;
451
f0706e82
JB		 452 /* Supported and basic rate filters for different modes. These are
453 * pointers to -1 terminated lists and rates in 100 kbps units. */
454 int *supp_rates[NUM_IEEE80211_MODES];
455 int *basic_rates[NUM_IEEE80211_MODES];
456
457 int rts_threshold;
f0706e82
JB		 458 int fragmentation_threshold;
459 int short_retry_limit; /* dot11ShortRetryLimit */
460 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 461
462 struct crypto_blkcipher *wep_tx_tfm;
463 struct crypto_blkcipher *wep_rx_tfm;
464 u32 wep_iv;
f0706e82
JB		 465
466 int bridge_packets; /* bridge packets between associated stations and
467 * deliver multicast frames both back to wireless
468 * media and to the local net stack */
469
470 ieee80211_rx_handler *rx_pre_handlers;
471 ieee80211_rx_handler *rx_handlers;
472 ieee80211_tx_handler *tx_handlers;
473
79010420
JB		 474 struct list_head interfaces;
475
ece8eddd
ZY		 476 bool sta_sw_scanning;
477 bool sta_hw_scanning;
f0706e82
JB		 478 int scan_channel_idx;
479 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
480 unsigned long last_scan_completed;
481 struct delayed_work scan_work;
482 struct net_device *scan_dev;
483 struct ieee80211_channel *oper_channel, *scan_channel;
484 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
485 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
486 size_t scan_ssid_len;
487 struct list_head sta_bss_list;
488 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
489 spinlock_t sta_bss_lock;
f0706e82
JB		 490
491 /* SNMP counters */
492 /* dot11CountersTable */
493 u32 dot11TransmittedFragmentCount;
494 u32 dot11MulticastTransmittedFrameCount;
495 u32 dot11FailedCount;
496 u32 dot11RetryCount;
497 u32 dot11MultipleRetryCount;
498 u32 dot11FrameDuplicateCount;
499 u32 dot11ReceivedFragmentCount;
500 u32 dot11MulticastReceivedFrameCount;
501 u32 dot11TransmittedFrameCount;
502 u32 dot11WEPUndecryptableCount;
503
504#ifdef CONFIG_MAC80211_LEDS
505 int tx_led_counter, rx_led_counter;
47f0c502
MB		 506 struct led_trigger *tx_led, *rx_led, *assoc_led;
507 char tx_led_name[32], rx_led_name[32], assoc_led_name[32];
f0706e82
JB		 508#endif
509
510 u32 channel_use;
511 u32 channel_use_raw;
f0706e82 512
e9f207f0
JB		 513#ifdef CONFIG_MAC80211_DEBUGFS
514 struct work_struct sta_debugfs_add;
515#endif
516
f0706e82
JB		 517#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
518 /* TX/RX handler statistics */
519 unsigned int tx_handlers_drop;
520 unsigned int tx_handlers_queued;
521 unsigned int tx_handlers_drop_unencrypted;
522 unsigned int tx_handlers_drop_fragment;
523 unsigned int tx_handlers_drop_wep;
524 unsigned int tx_handlers_drop_not_assoc;
525 unsigned int tx_handlers_drop_unauth_port;
526 unsigned int rx_handlers_drop;
527 unsigned int rx_handlers_queued;
528 unsigned int rx_handlers_drop_nullfunc;
529 unsigned int rx_handlers_drop_defrag;
530 unsigned int rx_handlers_drop_short;
531 unsigned int rx_handlers_drop_passive_scan;
532 unsigned int tx_expand_skb_head;
533 unsigned int tx_expand_skb_head_cloned;
534 unsigned int rx_expand_skb_head;
535 unsigned int rx_expand_skb_head2;
536 unsigned int rx_handlers_fragments;
537 unsigned int tx_status_drop;
538 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
539 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
540#define I802_DEBUG_INC(c) (c)++
541#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
542#define I802_DEBUG_INC(c) do { } while (0)
543#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
544
545
f0706e82
JB		 546 int total_ps_buffered; /* total number of all buffered unicast and
547 * multicast packets for power saving stations
548 */
f0706e82
JB		 549 int wifi_wme_noack_test;
550 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
551
552 unsigned int enabled_modes; /* bitfield of allowed modes;
553 * (1 << MODE_*) */
554 unsigned int hw_modes; /* bitfield of supported hardware modes;
555 * (1 << MODE_*) */
556
e9f207f0
JB		 557#ifdef CONFIG_MAC80211_DEBUGFS
558 struct local_debugfsdentries {
559 struct dentry *channel;
560 struct dentry *frequency;
e9f207f0
JB		 561 struct dentry *antenna_sel_tx;
562 struct dentry *antenna_sel_rx;
563 struct dentry *bridge_packets;
e9f207f0
JB		 564 struct dentry *rts_threshold;
565 struct dentry *fragmentation_threshold;
566 struct dentry *short_retry_limit;
567 struct dentry *long_retry_limit;
568 struct dentry *total_ps_buffered;
569 struct dentry *mode;
570 struct dentry *wep_iv;
e9f207f0
JB		 571 struct dentry *modes;
572 struct dentry *statistics;
573 struct local_debugfsdentries_statsdentries {
574 struct dentry *transmitted_fragment_count;
575 struct dentry *multicast_transmitted_frame_count;
576 struct dentry *failed_count;
577 struct dentry *retry_count;
578 struct dentry *multiple_retry_count;
579 struct dentry *frame_duplicate_count;
580 struct dentry *received_fragment_count;
581 struct dentry *multicast_received_frame_count;
582 struct dentry *transmitted_frame_count;
583 struct dentry *wep_undecryptable_count;
584 struct dentry *num_scans;
585#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
586 struct dentry *tx_handlers_drop;
587 struct dentry *tx_handlers_queued;
588 struct dentry *tx_handlers_drop_unencrypted;
589 struct dentry *tx_handlers_drop_fragment;
590 struct dentry *tx_handlers_drop_wep;
591 struct dentry *tx_handlers_drop_not_assoc;
592 struct dentry *tx_handlers_drop_unauth_port;
593 struct dentry *rx_handlers_drop;
594 struct dentry *rx_handlers_queued;
595 struct dentry *rx_handlers_drop_nullfunc;
596 struct dentry *rx_handlers_drop_defrag;
597 struct dentry *rx_handlers_drop_short;
598 struct dentry *rx_handlers_drop_passive_scan;
599 struct dentry *tx_expand_skb_head;
600 struct dentry *tx_expand_skb_head_cloned;
601 struct dentry *rx_expand_skb_head;
602 struct dentry *rx_expand_skb_head2;
603 struct dentry *rx_handlers_fragments;
604 struct dentry *tx_status_drop;
605 struct dentry *wme_tx_queue;
606 struct dentry *wme_rx_queue;
607#endif
608 struct dentry *dot11ACKFailureCount;
609 struct dentry *dot11RTSFailureCount;
610 struct dentry *dot11FCSErrorCount;
611 struct dentry *dot11RTSSuccessCount;
612 } stats;
613 struct dentry *stations;
614 struct dentry *keys;
615 } debugfs;
616#endif
f0706e82
JB		 617};
618
619static inline struct ieee80211_local *hw_to_local(
620 struct ieee80211_hw *hw)
621{
622 return container_of(hw, struct ieee80211_local, hw);
623}
624
625static inline struct ieee80211_hw *local_to_hw(
626 struct ieee80211_local *local)
627{
628 return &local->hw;
629}
630
631enum ieee80211_link_state_t {
632 IEEE80211_LINK_STATE_XOFF = 0,
633 IEEE80211_LINK_STATE_PENDING,
634};
635
636struct sta_attribute {
637 struct attribute attr;
638 ssize_t (*show)(const struct sta_info *, char *buf);
639 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
640};
641
30ccb088 642static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 643{
644 /*
30ccb088 645 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 646 * so this line may not be changed to use the __set_bit() format.
647 */
30ccb088 648 bss->tim[aid / 8] |= (1 << (aid % 8));
f0706e82
JB		 649}
650
651static inline void bss_tim_set(struct ieee80211_local *local,
30ccb088 652 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 653{
be8755e1 654 read_lock_bh(&local->sta_lock);
f0706e82 655 __bss_tim_set(bss, aid);
be8755e1 656 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 657}
658
30ccb088 659static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 660{
661 /*
30ccb088 662 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 663 * so this line may not be changed to use the __clear_bit() format.
664 */
30ccb088 665 bss->tim[aid / 8] &= ~(1 << (aid % 8));
f0706e82
JB		 666}
667
668static inline void bss_tim_clear(struct ieee80211_local *local,
30ccb088 669 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 670{
be8755e1 671 read_lock_bh(&local->sta_lock);
f0706e82 672 __bss_tim_clear(bss, aid);
be8755e1 673 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 674}
675
676/**
677 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
678 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
679 * @rate: Transmission rate to check, in 100 kbps
680 *
681 * Check if a given rate is an Extended Rate PHY (ERP) rate.
682 */
683static inline int ieee80211_is_erp_rate(int phymode, int rate)
684{
685 if (phymode == MODE_IEEE80211G) {
686 if (rate != 10 && rate != 20 &&
687 rate != 55 && rate != 110)
688 return 1;
689 }
690 return 0;
691}
692
571ecf67
JB		 693static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
694{
695 return compare_ether_addr(raddr, addr) == 0 ||
696 is_broadcast_ether_addr(raddr);
697}
698
699
f0706e82
JB		 700/* ieee80211.c */
701int ieee80211_hw_config(struct ieee80211_local *local);
702int ieee80211_if_config(struct net_device *dev);
703int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 704void ieee80211_prepare_rates(struct ieee80211_local *local,
705 struct ieee80211_hw_mode *mode);
706void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
707int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
708void ieee80211_if_setup(struct net_device *dev);
571ecf67
JB		 709struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
710 int phymode, int hwrate);
d3c990fb
RR		 711int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
712 struct ieee80211_ht_info *req_ht_cap,
713 struct ieee80211_ht_bss_info *req_bss_cap);
f0706e82
JB		 714
715/* ieee80211_ioctl.c */
716extern const struct iw_handler_def ieee80211_iw_handler_def;
717
f0706e82
JB		 718
719/* Least common multiple of the used rates (in 100 kbps). This is used to
720 * calculate rate_inv values for each rate so that only integers are needed. */
721#define CHAN_UTIL_RATE_LCM 95040
722/* 1 usec is 1/8 * (95040/10) = 1188 */
723#define CHAN_UTIL_PER_USEC 1188
724/* Amount of bits to shift the result right to scale the total utilization
725 * to values that will not wrap around 32-bit integers. */
726#define CHAN_UTIL_SHIFT 9
727/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
728 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
729 * raw value with about 23 should give utilization in 10th of a percentage
730 * (1/1000). However, utilization is only estimated and not all intervals
731 * between frames etc. are calculated. 18 seems to give numbers that are closer
732 * to the real maximum. */
733#define CHAN_UTIL_PER_10MS 18
734#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
735#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
736
737
738/* ieee80211_ioctl.c */
739int ieee80211_set_compression(struct ieee80211_local *local,
740 struct net_device *dev, struct sta_info *sta);
f0706e82
JB		 741int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
742/* ieee80211_sta.c */
743void ieee80211_sta_timer(unsigned long data);
744void ieee80211_sta_work(struct work_struct *work);
745void ieee80211_sta_scan_work(struct work_struct *work);
746void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
747 struct ieee80211_rx_status *rx_status);
748int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
749int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
750int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
751int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
752void ieee80211_sta_req_auth(struct net_device *dev,
753 struct ieee80211_if_sta *ifsta);
754int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
ece8eddd
ZY		 755ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
756 struct sk_buff *skb,
f0706e82
JB		 757 struct ieee80211_rx_status *rx_status);
758void ieee80211_rx_bss_list_init(struct net_device *dev);
759void ieee80211_rx_bss_list_deinit(struct net_device *dev);
760int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
761struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
762 struct sk_buff *skb, u8 *bssid,
763 u8 *addr);
764int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
765int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
d9430a32
DD		 766void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
767void ieee80211_reset_erp_info(struct net_device *dev);
c7153508
RR		 768int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
769 struct ieee80211_ht_info *ht_info);
770int ieee80211_ht_addt_info_ie_to_ht_bss_info(
771 struct ieee80211_ht_addt_info *ht_add_info_ie,
772 struct ieee80211_ht_bss_info *bss_info);
f0706e82
JB		 773/* ieee80211_iface.c */
774int ieee80211_if_add(struct net_device *dev, const char *name,
775 struct net_device **new_dev, int type);
776void ieee80211_if_set_type(struct net_device *dev, int type);
777void ieee80211_if_reinit(struct net_device *dev);
778void __ieee80211_if_del(struct ieee80211_local *local,
779 struct ieee80211_sub_if_data *sdata);
780int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
781void ieee80211_if_free(struct net_device *dev);
782void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
f0706e82 783
fd8bacc9
DD		 784/* regdomain.c */
785void ieee80211_regdomain_init(void);
786void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
787
571ecf67
JB		 788/* rx handling */
789extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
790extern ieee80211_rx_handler ieee80211_rx_handlers[];
791
e2ebc74d
JB		 792/* tx handling */
793extern ieee80211_tx_handler ieee80211_tx_handlers[];
794void ieee80211_clear_tx_pending(struct ieee80211_local *local);
795void ieee80211_tx_pending(unsigned long data);
796int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
797int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
798int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
e2ebc74d 799
c2d1560a
JB		 800/* utility functions/constants */
801extern void *mac80211_wiphy_privid; /* for wiphy privid */
802extern const unsigned char rfc1042_header[6];
803extern const unsigned char bridge_tunnel_header[6];
804u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
76ee65bf 805int ieee80211_is_eapol(const struct sk_buff *skb, int hdrlen);
c2d1560a
JB		 806int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
807 int rate, int erp, int short_preamble);
eb063c17
JB		 808void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
809 struct ieee80211_hdr *hdr);
f0706e82
JB		 810
811#endif /* IEEE80211_I_H */
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