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[PATCH] mac80211: remove crypto algorithm typedef
[mirror_ubuntu-artful-kernel.git] / net / mac80211 / ieee80211_i.h
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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
40#define BIT(x) (1 << (x))
41
42#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
43
44/* Maximum number of broadcast/multicast frames to buffer when some of the
45 * associated stations are using power saving. */
46#define AP_MAX_BC_BUFFER 128
47
48/* Maximum number of frames buffered to all STAs, including multicast frames.
49 * Note: increasing this limit increases the potential memory requirement. Each
50 * frame can be up to about 2 kB long. */
51#define TOTAL_MAX_TX_BUFFER 512
52
53/* Required encryption head and tailroom */
54#define IEEE80211_ENCRYPT_HEADROOM 8
55#define IEEE80211_ENCRYPT_TAILROOM 12
56
57/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
58 * reception of at least three fragmented frames. This limit can be increased
59 * by changing this define, at the cost of slower frame reassembly and
60 * increased memory use (about 2 kB of RAM per entry). */
61#define IEEE80211_FRAGMENT_MAX 4
62
63struct ieee80211_fragment_entry {
64 unsigned long first_frag_time;
65 unsigned int seq;
66 unsigned int rx_queue;
67 unsigned int last_frag;
68 unsigned int extra_len;
69 struct sk_buff_head skb_list;
70 int ccmp; /* Whether fragments were encrypted with CCMP */
71 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
72};
73
74
75struct ieee80211_sta_bss {
76 struct list_head list;
77 struct ieee80211_sta_bss *hnext;
78 atomic_t users;
79
80 u8 bssid[ETH_ALEN];
81 u8 ssid[IEEE80211_MAX_SSID_LEN];
82 size_t ssid_len;
83 u16 capability; /* host byte order */
84 int hw_mode;
85 int channel;
86 int freq;
87 int rssi, signal, noise;
88 u8 *wpa_ie;
89 size_t wpa_ie_len;
90 u8 *rsn_ie;
91 size_t rsn_ie_len;
92 u8 *wmm_ie;
93 size_t wmm_ie_len;
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)
f0706e82
JB		 125struct ieee80211_txrx_data {
126 struct sk_buff *skb;
127 struct net_device *dev;
128 struct ieee80211_local *local;
129 struct ieee80211_sub_if_data *sdata;
130 struct sta_info *sta;
131 u16 fc, ethertype;
132 struct ieee80211_key *key;
badffb72 133 unsigned int flags;
f0706e82
JB		 134 union {
135 struct {
136 struct ieee80211_tx_control *control;
f0706e82
JB		 137 struct ieee80211_hw_mode *mode;
138 struct ieee80211_rate *rate;
139 /* use this rate (if set) for last fragment; rate can
140 * be set to lower rate for the first fragments, e.g.,
141 * when using CTS protection with IEEE 802.11g. */
142 struct ieee80211_rate *last_frag_rate;
143 int last_frag_hwrate;
144 int mgmt_interface;
145
146 /* Extra fragments (in addition to the first fragment
147 * in skb) */
148 int num_extra_frag;
149 struct sk_buff **extra_frag;
150 } tx;
151 struct {
152 struct ieee80211_rx_status *status;
153 int sent_ps_buffered;
154 int queue;
155 int load;
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)
164#define IEEE80211_TXPD_MGMT_IFACE BIT(3)
f0706e82
JB		 165/* Stored in sk_buff->cb */
166struct ieee80211_tx_packet_data {
167 int ifindex;
168 unsigned long jiffies;
e8bf9649
JS		 169 unsigned int flags;
170 u8 queue;
f0706e82
JB		 171};
172
173struct ieee80211_tx_stored_packet {
174 struct ieee80211_tx_control control;
175 struct sk_buff *skb;
176 int num_extra_frag;
177 struct sk_buff **extra_frag;
178 int last_frag_rateidx;
179 int last_frag_hwrate;
180 struct ieee80211_rate *last_frag_rate;
badffb72 181 unsigned int last_frag_rate_ctrl_probe;
f0706e82
JB		 182};
183
184typedef ieee80211_txrx_result (*ieee80211_tx_handler)
185(struct ieee80211_txrx_data *tx);
186
187typedef ieee80211_txrx_result (*ieee80211_rx_handler)
188(struct ieee80211_txrx_data *rx);
189
190struct ieee80211_if_ap {
191 u8 *beacon_head, *beacon_tail;
192 int beacon_head_len, beacon_tail_len;
193
0ec3ca44
JB		 194 struct list_head vlans;
195
f0706e82
JB		 196 u8 ssid[IEEE80211_MAX_SSID_LEN];
197 size_t ssid_len;
198 u8 *generic_elem;
199 size_t generic_elem_len;
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)
f0706e82
JB		 236struct ieee80211_if_sta {
237 enum {
238 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
239 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
240 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
241 } state;
242 struct timer_list timer;
243 struct work_struct work;
244 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
245 u8 ssid[IEEE80211_MAX_SSID_LEN];
246 size_t ssid_len;
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
808718c1 265 int key_management_enabled;
f0706e82
JB		 266 unsigned long last_probe;
267
268#define IEEE80211_AUTH_ALG_OPEN BIT(0)
269#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
270#define IEEE80211_AUTH_ALG_LEAP BIT(2)
271 unsigned int auth_algs; /* bitfield of allowed auth algs */
272 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
273 int auth_transaction;
274
275 unsigned long ibss_join_req;
276 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
277 u32 supp_rates_bits;
278
279 int wmm_last_param_set;
280};
281
282
13262ffd
JS		 283/* flags used in struct ieee80211_sub_if_data.flags */
284#define IEEE80211_SDATA_ALLMULTI BIT(0)
285#define IEEE80211_SDATA_PROMISC BIT(1)
286#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
287/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
288 * generator reports that there are no present stations that cannot support short
289 * preambles */
290#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
f0706e82
JB		 291struct ieee80211_sub_if_data {
292 struct list_head list;
293 unsigned int type;
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 */
411 struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
412 int open_count;
413 int monitors;
4150c572 414 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 415 struct iw_statistics wstats;
416 u8 wstats_flags;
b306f453 417 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 418
419 enum {
420 IEEE80211_DEV_UNINITIALIZED = 0,
421 IEEE80211_DEV_REGISTERED,
422 IEEE80211_DEV_UNREGISTERED,
423 } reg_state;
424
425 /* Tasklet and skb queue to process calls from IRQ mode. All frames
426 * added to skb_queue will be processed, but frames in
427 * skb_queue_unreliable may be dropped if the total length of these
428 * queues increases over the limit. */
429#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
430 struct tasklet_struct tasklet;
431 struct sk_buff_head skb_queue;
432 struct sk_buff_head skb_queue_unreliable;
433
434 /* Station data structures */
be8755e1 435 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 436 int num_sta; /* number of stations in sta_list */
437 struct list_head sta_list;
f0706e82
JB		 438 struct sta_info *sta_hash[STA_HASH_SIZE];
439 struct timer_list sta_cleanup;
440
441 unsigned long state[NUM_TX_DATA_QUEUES];
442 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
443 struct tasklet_struct tx_pending_tasklet;
444
445 int mc_count; /* total count of multicast entries in all interfaces */
446 int iff_allmultis, iff_promiscs;
447 /* number of interfaces with corresponding IFF_ flags */
448
449 struct rate_control_ref *rate_ctrl;
450
451 int next_mode; /* MODE_IEEE80211*
452 * The mode preference for next channel change. This is
453 * used to select .11g vs. .11b channels (or 4.9 GHz vs.
454 * .11a) when the channel number is not unique. */
455
456 /* Supported and basic rate filters for different modes. These are
457 * pointers to -1 terminated lists and rates in 100 kbps units. */
458 int *supp_rates[NUM_IEEE80211_MODES];
459 int *basic_rates[NUM_IEEE80211_MODES];
460
461 int rts_threshold;
f0706e82
JB		 462 int fragmentation_threshold;
463 int short_retry_limit; /* dot11ShortRetryLimit */
464 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 465
466 struct crypto_blkcipher *wep_tx_tfm;
467 struct crypto_blkcipher *wep_rx_tfm;
468 u32 wep_iv;
f0706e82
JB		 469
470 int bridge_packets; /* bridge packets between associated stations and
471 * deliver multicast frames both back to wireless
472 * media and to the local net stack */
473
474 ieee80211_rx_handler *rx_pre_handlers;
475 ieee80211_rx_handler *rx_handlers;
476 ieee80211_tx_handler *tx_handlers;
477
478 rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under
479 * sta_bss_lock or sta_lock. */
480 struct list_head sub_if_list;
481 int sta_scanning;
482 int scan_channel_idx;
483 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
484 unsigned long last_scan_completed;
485 struct delayed_work scan_work;
486 struct net_device *scan_dev;
487 struct ieee80211_channel *oper_channel, *scan_channel;
488 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
489 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
490 size_t scan_ssid_len;
491 struct list_head sta_bss_list;
492 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
493 spinlock_t sta_bss_lock;
494#define IEEE80211_SCAN_MATCH_SSID BIT(0)
495#define IEEE80211_SCAN_WPA_ONLY BIT(1)
496#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
497 int scan_flags;
498
499 /* SNMP counters */
500 /* dot11CountersTable */
501 u32 dot11TransmittedFragmentCount;
502 u32 dot11MulticastTransmittedFrameCount;
503 u32 dot11FailedCount;
504 u32 dot11RetryCount;
505 u32 dot11MultipleRetryCount;
506 u32 dot11FrameDuplicateCount;
507 u32 dot11ReceivedFragmentCount;
508 u32 dot11MulticastReceivedFrameCount;
509 u32 dot11TransmittedFrameCount;
510 u32 dot11WEPUndecryptableCount;
511
512#ifdef CONFIG_MAC80211_LEDS
513 int tx_led_counter, rx_led_counter;
514 struct led_trigger *tx_led, *rx_led;
515 char tx_led_name[32], rx_led_name[32];
516#endif
517
518 u32 channel_use;
519 u32 channel_use_raw;
f0706e82 520
e9f207f0
JB		 521#ifdef CONFIG_MAC80211_DEBUGFS
522 struct work_struct sta_debugfs_add;
523#endif
524
f0706e82
JB		 525#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
526 /* TX/RX handler statistics */
527 unsigned int tx_handlers_drop;
528 unsigned int tx_handlers_queued;
529 unsigned int tx_handlers_drop_unencrypted;
530 unsigned int tx_handlers_drop_fragment;
531 unsigned int tx_handlers_drop_wep;
532 unsigned int tx_handlers_drop_not_assoc;
533 unsigned int tx_handlers_drop_unauth_port;
534 unsigned int rx_handlers_drop;
535 unsigned int rx_handlers_queued;
536 unsigned int rx_handlers_drop_nullfunc;
537 unsigned int rx_handlers_drop_defrag;
538 unsigned int rx_handlers_drop_short;
539 unsigned int rx_handlers_drop_passive_scan;
540 unsigned int tx_expand_skb_head;
541 unsigned int tx_expand_skb_head_cloned;
542 unsigned int rx_expand_skb_head;
543 unsigned int rx_expand_skb_head2;
544 unsigned int rx_handlers_fragments;
545 unsigned int tx_status_drop;
546 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
547 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
548#define I802_DEBUG_INC(c) (c)++
549#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
550#define I802_DEBUG_INC(c) do { } while (0)
551#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
552
553
f0706e82
JB		 554 int total_ps_buffered; /* total number of all buffered unicast and
555 * multicast packets for power saving stations
556 */
f0706e82
JB		 557 int wifi_wme_noack_test;
558 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
559
560 unsigned int enabled_modes; /* bitfield of allowed modes;
561 * (1 << MODE_*) */
562 unsigned int hw_modes; /* bitfield of supported hardware modes;
563 * (1 << MODE_*) */
564
565 int user_space_mlme;
e9f207f0
JB		 566
567#ifdef CONFIG_MAC80211_DEBUGFS
568 struct local_debugfsdentries {
569 struct dentry *channel;
570 struct dentry *frequency;
e9f207f0
JB		 571 struct dentry *antenna_sel_tx;
572 struct dentry *antenna_sel_rx;
573 struct dentry *bridge_packets;
e9f207f0
JB		 574 struct dentry *rts_threshold;
575 struct dentry *fragmentation_threshold;
576 struct dentry *short_retry_limit;
577 struct dentry *long_retry_limit;
578 struct dentry *total_ps_buffered;
579 struct dentry *mode;
580 struct dentry *wep_iv;
e9f207f0
JB		 581 struct dentry *modes;
582 struct dentry *statistics;
583 struct local_debugfsdentries_statsdentries {
584 struct dentry *transmitted_fragment_count;
585 struct dentry *multicast_transmitted_frame_count;
586 struct dentry *failed_count;
587 struct dentry *retry_count;
588 struct dentry *multiple_retry_count;
589 struct dentry *frame_duplicate_count;
590 struct dentry *received_fragment_count;
591 struct dentry *multicast_received_frame_count;
592 struct dentry *transmitted_frame_count;
593 struct dentry *wep_undecryptable_count;
594 struct dentry *num_scans;
595#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
596 struct dentry *tx_handlers_drop;
597 struct dentry *tx_handlers_queued;
598 struct dentry *tx_handlers_drop_unencrypted;
599 struct dentry *tx_handlers_drop_fragment;
600 struct dentry *tx_handlers_drop_wep;
601 struct dentry *tx_handlers_drop_not_assoc;
602 struct dentry *tx_handlers_drop_unauth_port;
603 struct dentry *rx_handlers_drop;
604 struct dentry *rx_handlers_queued;
605 struct dentry *rx_handlers_drop_nullfunc;
606 struct dentry *rx_handlers_drop_defrag;
607 struct dentry *rx_handlers_drop_short;
608 struct dentry *rx_handlers_drop_passive_scan;
609 struct dentry *tx_expand_skb_head;
610 struct dentry *tx_expand_skb_head_cloned;
611 struct dentry *rx_expand_skb_head;
612 struct dentry *rx_expand_skb_head2;
613 struct dentry *rx_handlers_fragments;
614 struct dentry *tx_status_drop;
615 struct dentry *wme_tx_queue;
616 struct dentry *wme_rx_queue;
617#endif
618 struct dentry *dot11ACKFailureCount;
619 struct dentry *dot11RTSFailureCount;
620 struct dentry *dot11FCSErrorCount;
621 struct dentry *dot11RTSSuccessCount;
622 } stats;
623 struct dentry *stations;
624 struct dentry *keys;
625 } debugfs;
626#endif
f0706e82
JB		 627};
628
629static inline struct ieee80211_local *hw_to_local(
630 struct ieee80211_hw *hw)
631{
632 return container_of(hw, struct ieee80211_local, hw);
633}
634
635static inline struct ieee80211_hw *local_to_hw(
636 struct ieee80211_local *local)
637{
638 return &local->hw;
639}
640
641enum ieee80211_link_state_t {
642 IEEE80211_LINK_STATE_XOFF = 0,
643 IEEE80211_LINK_STATE_PENDING,
644};
645
646struct sta_attribute {
647 struct attribute attr;
648 ssize_t (*show)(const struct sta_info *, char *buf);
649 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
650};
651
652static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid)
653{
654 /*
655 * This format has ben mandated by the IEEE specifications,
656 * so this line may not be changed to use the __set_bit() format.
657 */
658 bss->tim[(aid)/8] |= 1<<((aid) % 8);
659}
660
661static inline void bss_tim_set(struct ieee80211_local *local,
662 struct ieee80211_if_ap *bss, int aid)
663{
be8755e1 664 read_lock_bh(&local->sta_lock);
f0706e82 665 __bss_tim_set(bss, aid);
be8755e1 666 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 667}
668
669static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
670{
671 /*
672 * This format has ben mandated by the IEEE specifications,
673 * so this line may not be changed to use the __clear_bit() format.
674 */
675 bss->tim[(aid)/8] &= !(1<<((aid) % 8));
676}
677
678static inline void bss_tim_clear(struct ieee80211_local *local,
679 struct ieee80211_if_ap *bss, int aid)
680{
be8755e1 681 read_lock_bh(&local->sta_lock);
f0706e82 682 __bss_tim_clear(bss, aid);
be8755e1 683 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 684}
685
686/**
687 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
688 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
689 * @rate: Transmission rate to check, in 100 kbps
690 *
691 * Check if a given rate is an Extended Rate PHY (ERP) rate.
692 */
693static inline int ieee80211_is_erp_rate(int phymode, int rate)
694{
695 if (phymode == MODE_IEEE80211G) {
696 if (rate != 10 && rate != 20 &&
697 rate != 55 && rate != 110)
698 return 1;
699 }
700 return 0;
701}
702
571ecf67
JB		 703static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
704{
705 return compare_ether_addr(raddr, addr) == 0 ||
706 is_broadcast_ether_addr(raddr);
707}
708
709
f0706e82
JB		 710/* ieee80211.c */
711int ieee80211_hw_config(struct ieee80211_local *local);
712int ieee80211_if_config(struct net_device *dev);
713int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 714void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
715 struct ieee80211_rx_status *status, u32 msg_type);
716void ieee80211_prepare_rates(struct ieee80211_local *local,
717 struct ieee80211_hw_mode *mode);
718void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
719int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
720void ieee80211_if_setup(struct net_device *dev);
721void ieee80211_if_mgmt_setup(struct net_device *dev);
571ecf67
JB		 722struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
723 int phymode, int hwrate);
f0706e82
JB		 724
725/* ieee80211_ioctl.c */
726extern const struct iw_handler_def ieee80211_iw_handler_def;
727
f0706e82
JB		 728
729/* Least common multiple of the used rates (in 100 kbps). This is used to
730 * calculate rate_inv values for each rate so that only integers are needed. */
731#define CHAN_UTIL_RATE_LCM 95040
732/* 1 usec is 1/8 * (95040/10) = 1188 */
733#define CHAN_UTIL_PER_USEC 1188
734/* Amount of bits to shift the result right to scale the total utilization
735 * to values that will not wrap around 32-bit integers. */
736#define CHAN_UTIL_SHIFT 9
737/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
738 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
739 * raw value with about 23 should give utilization in 10th of a percentage
740 * (1/1000). However, utilization is only estimated and not all intervals
741 * between frames etc. are calculated. 18 seems to give numbers that are closer
742 * to the real maximum. */
743#define CHAN_UTIL_PER_10MS 18
744#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
745#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
746
747
748/* ieee80211_ioctl.c */
749int ieee80211_set_compression(struct ieee80211_local *local,
750 struct net_device *dev, struct sta_info *sta);
f0706e82
JB		 751int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
752/* ieee80211_sta.c */
753void ieee80211_sta_timer(unsigned long data);
754void ieee80211_sta_work(struct work_struct *work);
755void ieee80211_sta_scan_work(struct work_struct *work);
756void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
757 struct ieee80211_rx_status *rx_status);
758int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
759int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
760int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
761int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
762void ieee80211_sta_req_auth(struct net_device *dev,
763 struct ieee80211_if_sta *ifsta);
764int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
765void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
766 struct ieee80211_rx_status *rx_status);
767void ieee80211_rx_bss_list_init(struct net_device *dev);
768void ieee80211_rx_bss_list_deinit(struct net_device *dev);
769int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
770struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
771 struct sk_buff *skb, u8 *bssid,
772 u8 *addr);
773int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
774int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
d9430a32
DD		 775void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
776void ieee80211_reset_erp_info(struct net_device *dev);
f0706e82
JB		 777
778/* ieee80211_iface.c */
779int ieee80211_if_add(struct net_device *dev, const char *name,
780 struct net_device **new_dev, int type);
781void ieee80211_if_set_type(struct net_device *dev, int type);
782void ieee80211_if_reinit(struct net_device *dev);
783void __ieee80211_if_del(struct ieee80211_local *local,
784 struct ieee80211_sub_if_data *sdata);
785int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
786void ieee80211_if_free(struct net_device *dev);
787void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
788int ieee80211_if_add_mgmt(struct ieee80211_local *local);
789void ieee80211_if_del_mgmt(struct ieee80211_local *local);
790
fd8bacc9
DD		 791/* regdomain.c */
792void ieee80211_regdomain_init(void);
793void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
794
571ecf67
JB		 795/* rx handling */
796extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
797extern ieee80211_rx_handler ieee80211_rx_handlers[];
798
e2ebc74d
JB		 799/* tx handling */
800extern ieee80211_tx_handler ieee80211_tx_handlers[];
801void ieee80211_clear_tx_pending(struct ieee80211_local *local);
802void ieee80211_tx_pending(unsigned long data);
803int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
804int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
805int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
806int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev);
807
c2d1560a
JB		 808/* utility functions/constants */
809extern void *mac80211_wiphy_privid; /* for wiphy privid */
810extern const unsigned char rfc1042_header[6];
811extern const unsigned char bridge_tunnel_header[6];
812u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
813int ieee80211_is_eapol(const struct sk_buff *skb);
814int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
815 int rate, int erp, int short_preamble);
eb063c17
JB		 816void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
817 struct ieee80211_hdr *hdr);
f0706e82
JB		 818
819#endif /* IEEE80211_I_H */
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