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[PATCH] mac80211: revamp interface and filter configuration
[mirror_ubuntu-hirsute-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
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
194 u8 ssid[IEEE80211_MAX_SSID_LEN];
195 size_t ssid_len;
196 u8 *generic_elem;
197 size_t generic_elem_len;
198
199 /* yes, this looks ugly, but guarantees that we can later use
200 * bitmap_empty :)
201 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
202 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
203 atomic_t num_sta_ps; /* number of stations in PS mode */
204 struct sk_buff_head ps_bc_buf;
205 int dtim_period, dtim_count;
206 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
207 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
208 int num_beacons; /* number of TXed beacon frames for this BSS */
209};
210
211struct ieee80211_if_wds {
212 u8 remote_addr[ETH_ALEN];
213 struct sta_info *sta;
214};
215
216struct ieee80211_if_vlan {
217 u8 id;
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)
f0706e82
JB		 233struct ieee80211_if_sta {
234 enum {
235 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
236 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
237 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
238 } state;
239 struct timer_list timer;
240 struct work_struct work;
241 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
242 u8 ssid[IEEE80211_MAX_SSID_LEN];
243 size_t ssid_len;
244 u16 aid;
245 u16 ap_capab, capab;
246 u8 *extra_ie; /* to be added to the end of AssocReq */
247 size_t extra_ie_len;
248
249 /* The last AssocReq/Resp IEs */
250 u8 *assocreq_ies, *assocresp_ies;
251 size_t assocreq_ies_len, assocresp_ies_len;
252
253 int auth_tries, assoc_tries;
254
d6f2da5b 255 unsigned int flags;
f0706e82
JB		 256#define IEEE80211_STA_REQ_SCAN 0
257#define IEEE80211_STA_REQ_AUTH 1
258#define IEEE80211_STA_REQ_RUN 2
259 unsigned long request;
260 struct sk_buff_head skb_queue;
261
808718c1 262 int key_management_enabled;
f0706e82
JB		 263 unsigned long last_probe;
264
265#define IEEE80211_AUTH_ALG_OPEN BIT(0)
266#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
267#define IEEE80211_AUTH_ALG_LEAP BIT(2)
268 unsigned int auth_algs; /* bitfield of allowed auth algs */
269 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
270 int auth_transaction;
271
272 unsigned long ibss_join_req;
273 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
274 u32 supp_rates_bits;
275
276 int wmm_last_param_set;
277};
278
279
13262ffd
JS		 280/* flags used in struct ieee80211_sub_if_data.flags */
281#define IEEE80211_SDATA_ALLMULTI BIT(0)
282#define IEEE80211_SDATA_PROMISC BIT(1)
283#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
284/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
285 * generator reports that there are no present stations that cannot support short
286 * preambles */
287#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
f0706e82
JB		 288struct ieee80211_sub_if_data {
289 struct list_head list;
290 unsigned int type;
291
292 struct wireless_dev wdev;
293
11a843b7
JB		 294 /* keys */
295 struct list_head key_list;
296
f0706e82
JB		 297 struct net_device *dev;
298 struct ieee80211_local *local;
299
13262ffd 300 unsigned int flags;
7e9ed188 301
f0706e82
JB		 302 int drop_unencrypted;
303 int eapol; /* 0 = process EAPOL frames as normal data frames,
304 * 1 = send EAPOL frames through wlan#ap to hostapd
305 * (default) */
306 int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
307 * port */
308
309 u16 sequence;
310
311 /* Fragment table for host-based reassembly */
312 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
313 unsigned int fragment_next;
314
315#define NUM_DEFAULT_KEYS 4
316 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
317 struct ieee80211_key *default_key;
318
319 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
320
321 union {
322 struct ieee80211_if_ap ap;
323 struct ieee80211_if_wds wds;
324 struct ieee80211_if_vlan vlan;
325 struct ieee80211_if_sta sta;
326 } u;
327 int channel_use;
328 int channel_use_raw;
e9f207f0
JB		 329
330#ifdef CONFIG_MAC80211_DEBUGFS
331 struct dentry *debugfsdir;
332 union {
333 struct {
334 struct dentry *channel_use;
335 struct dentry *drop_unencrypted;
336 struct dentry *eapol;
337 struct dentry *ieee8021_x;
338 struct dentry *state;
339 struct dentry *bssid;
340 struct dentry *prev_bssid;
341 struct dentry *ssid_len;
342 struct dentry *aid;
343 struct dentry *ap_capab;
344 struct dentry *capab;
345 struct dentry *extra_ie_len;
346 struct dentry *auth_tries;
347 struct dentry *assoc_tries;
348 struct dentry *auth_algs;
349 struct dentry *auth_alg;
350 struct dentry *auth_transaction;
351 struct dentry *flags;
352 } sta;
353 struct {
354 struct dentry *channel_use;
355 struct dentry *drop_unencrypted;
356 struct dentry *eapol;
357 struct dentry *ieee8021_x;
358 struct dentry *num_sta_ps;
359 struct dentry *dtim_period;
360 struct dentry *dtim_count;
361 struct dentry *num_beacons;
362 struct dentry *force_unicast_rateidx;
363 struct dentry *max_ratectrl_rateidx;
364 struct dentry *num_buffered_multicast;
365 struct dentry *beacon_head_len;
366 struct dentry *beacon_tail_len;
367 } ap;
368 struct {
369 struct dentry *channel_use;
370 struct dentry *drop_unencrypted;
371 struct dentry *eapol;
372 struct dentry *ieee8021_x;
373 struct dentry *peer;
374 } wds;
375 struct {
376 struct dentry *channel_use;
377 struct dentry *drop_unencrypted;
378 struct dentry *eapol;
379 struct dentry *ieee8021_x;
380 struct dentry *vlan_id;
381 } vlan;
382 struct {
383 struct dentry *mode;
384 } monitor;
385 struct dentry *default_key;
386 } debugfs;
387#endif
f0706e82
JB		 388};
389
390#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
391
392enum {
393 IEEE80211_RX_MSG = 1,
394 IEEE80211_TX_STATUS_MSG = 2,
395};
396
397struct ieee80211_local {
398 /* embed the driver visible part.
399 * don't cast (use the static inlines below), but we keep
400 * it first anyway so they become a no-op */
401 struct ieee80211_hw hw;
402
403 const struct ieee80211_ops *ops;
404
405 /* List of registered struct ieee80211_hw_mode */
406 struct list_head modes_list;
407
408 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
409 struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
410 int open_count;
411 int monitors;
4150c572 412 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 413 struct iw_statistics wstats;
414 u8 wstats_flags;
b306f453 415 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 416
417 enum {
418 IEEE80211_DEV_UNINITIALIZED = 0,
419 IEEE80211_DEV_REGISTERED,
420 IEEE80211_DEV_UNREGISTERED,
421 } reg_state;
422
423 /* Tasklet and skb queue to process calls from IRQ mode. All frames
424 * added to skb_queue will be processed, but frames in
425 * skb_queue_unreliable may be dropped if the total length of these
426 * queues increases over the limit. */
427#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
428 struct tasklet_struct tasklet;
429 struct sk_buff_head skb_queue;
430 struct sk_buff_head skb_queue_unreliable;
431
432 /* Station data structures */
be8755e1 433 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 434 int num_sta; /* number of stations in sta_list */
435 struct list_head sta_list;
f0706e82
JB		 436 struct sta_info *sta_hash[STA_HASH_SIZE];
437 struct timer_list sta_cleanup;
438
439 unsigned long state[NUM_TX_DATA_QUEUES];
440 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
441 struct tasklet_struct tx_pending_tasklet;
442
443 int mc_count; /* total count of multicast entries in all interfaces */
444 int iff_allmultis, iff_promiscs;
445 /* number of interfaces with corresponding IFF_ flags */
446
447 struct rate_control_ref *rate_ctrl;
448
449 int next_mode; /* MODE_IEEE80211*
450 * The mode preference for next channel change. This is
451 * used to select .11g vs. .11b channels (or 4.9 GHz vs.
452 * .11a) when the channel number is not unique. */
453
454 /* Supported and basic rate filters for different modes. These are
455 * pointers to -1 terminated lists and rates in 100 kbps units. */
456 int *supp_rates[NUM_IEEE80211_MODES];
457 int *basic_rates[NUM_IEEE80211_MODES];
458
459 int rts_threshold;
f0706e82
JB		 460 int fragmentation_threshold;
461 int short_retry_limit; /* dot11ShortRetryLimit */
462 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 463
464 struct crypto_blkcipher *wep_tx_tfm;
465 struct crypto_blkcipher *wep_rx_tfm;
466 u32 wep_iv;
f0706e82
JB		 467
468 int bridge_packets; /* bridge packets between associated stations and
469 * deliver multicast frames both back to wireless
470 * media and to the local net stack */
471
472 ieee80211_rx_handler *rx_pre_handlers;
473 ieee80211_rx_handler *rx_handlers;
474 ieee80211_tx_handler *tx_handlers;
475
476 rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under
477 * sta_bss_lock or sta_lock. */
478 struct list_head sub_if_list;
479 int sta_scanning;
480 int scan_channel_idx;
481 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
482 unsigned long last_scan_completed;
483 struct delayed_work scan_work;
484 struct net_device *scan_dev;
485 struct ieee80211_channel *oper_channel, *scan_channel;
486 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
487 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
488 size_t scan_ssid_len;
489 struct list_head sta_bss_list;
490 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
491 spinlock_t sta_bss_lock;
492#define IEEE80211_SCAN_MATCH_SSID BIT(0)
493#define IEEE80211_SCAN_WPA_ONLY BIT(1)
494#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
495 int scan_flags;
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;
512 struct led_trigger *tx_led, *rx_led;
513 char tx_led_name[32], rx_led_name[32];
514#endif
515
516 u32 channel_use;
517 u32 channel_use_raw;
f0706e82 518
e9f207f0
JB		 519#ifdef CONFIG_MAC80211_DEBUGFS
520 struct work_struct sta_debugfs_add;
521#endif
522
f0706e82
JB		 523#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
524 /* TX/RX handler statistics */
525 unsigned int tx_handlers_drop;
526 unsigned int tx_handlers_queued;
527 unsigned int tx_handlers_drop_unencrypted;
528 unsigned int tx_handlers_drop_fragment;
529 unsigned int tx_handlers_drop_wep;
530 unsigned int tx_handlers_drop_not_assoc;
531 unsigned int tx_handlers_drop_unauth_port;
532 unsigned int rx_handlers_drop;
533 unsigned int rx_handlers_queued;
534 unsigned int rx_handlers_drop_nullfunc;
535 unsigned int rx_handlers_drop_defrag;
536 unsigned int rx_handlers_drop_short;
537 unsigned int rx_handlers_drop_passive_scan;
538 unsigned int tx_expand_skb_head;
539 unsigned int tx_expand_skb_head_cloned;
540 unsigned int rx_expand_skb_head;
541 unsigned int rx_expand_skb_head2;
542 unsigned int rx_handlers_fragments;
543 unsigned int tx_status_drop;
544 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
545 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
546#define I802_DEBUG_INC(c) (c)++
547#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
548#define I802_DEBUG_INC(c) do { } while (0)
549#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
550
551
f0706e82
JB		 552 int total_ps_buffered; /* total number of all buffered unicast and
553 * multicast packets for power saving stations
554 */
f0706e82
JB		 555 int wifi_wme_noack_test;
556 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
557
558 unsigned int enabled_modes; /* bitfield of allowed modes;
559 * (1 << MODE_*) */
560 unsigned int hw_modes; /* bitfield of supported hardware modes;
561 * (1 << MODE_*) */
562
563 int user_space_mlme;
e9f207f0
JB		 564
565#ifdef CONFIG_MAC80211_DEBUGFS
566 struct local_debugfsdentries {
567 struct dentry *channel;
568 struct dentry *frequency;
e9f207f0
JB		 569 struct dentry *antenna_sel_tx;
570 struct dentry *antenna_sel_rx;
571 struct dentry *bridge_packets;
e9f207f0
JB		 572 struct dentry *rts_threshold;
573 struct dentry *fragmentation_threshold;
574 struct dentry *short_retry_limit;
575 struct dentry *long_retry_limit;
576 struct dentry *total_ps_buffered;
577 struct dentry *mode;
578 struct dentry *wep_iv;
e9f207f0
JB		 579 struct dentry *modes;
580 struct dentry *statistics;
581 struct local_debugfsdentries_statsdentries {
582 struct dentry *transmitted_fragment_count;
583 struct dentry *multicast_transmitted_frame_count;
584 struct dentry *failed_count;
585 struct dentry *retry_count;
586 struct dentry *multiple_retry_count;
587 struct dentry *frame_duplicate_count;
588 struct dentry *received_fragment_count;
589 struct dentry *multicast_received_frame_count;
590 struct dentry *transmitted_frame_count;
591 struct dentry *wep_undecryptable_count;
592 struct dentry *num_scans;
593#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
594 struct dentry *tx_handlers_drop;
595 struct dentry *tx_handlers_queued;
596 struct dentry *tx_handlers_drop_unencrypted;
597 struct dentry *tx_handlers_drop_fragment;
598 struct dentry *tx_handlers_drop_wep;
599 struct dentry *tx_handlers_drop_not_assoc;
600 struct dentry *tx_handlers_drop_unauth_port;
601 struct dentry *rx_handlers_drop;
602 struct dentry *rx_handlers_queued;
603 struct dentry *rx_handlers_drop_nullfunc;
604 struct dentry *rx_handlers_drop_defrag;
605 struct dentry *rx_handlers_drop_short;
606 struct dentry *rx_handlers_drop_passive_scan;
607 struct dentry *tx_expand_skb_head;
608 struct dentry *tx_expand_skb_head_cloned;
609 struct dentry *rx_expand_skb_head;
610 struct dentry *rx_expand_skb_head2;
611 struct dentry *rx_handlers_fragments;
612 struct dentry *tx_status_drop;
613 struct dentry *wme_tx_queue;
614 struct dentry *wme_rx_queue;
615#endif
616 struct dentry *dot11ACKFailureCount;
617 struct dentry *dot11RTSFailureCount;
618 struct dentry *dot11FCSErrorCount;
619 struct dentry *dot11RTSSuccessCount;
620 } stats;
621 struct dentry *stations;
622 struct dentry *keys;
623 } debugfs;
624#endif
f0706e82
JB		 625};
626
627static inline struct ieee80211_local *hw_to_local(
628 struct ieee80211_hw *hw)
629{
630 return container_of(hw, struct ieee80211_local, hw);
631}
632
633static inline struct ieee80211_hw *local_to_hw(
634 struct ieee80211_local *local)
635{
636 return &local->hw;
637}
638
639enum ieee80211_link_state_t {
640 IEEE80211_LINK_STATE_XOFF = 0,
641 IEEE80211_LINK_STATE_PENDING,
642};
643
644struct sta_attribute {
645 struct attribute attr;
646 ssize_t (*show)(const struct sta_info *, char *buf);
647 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
648};
649
650static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid)
651{
652 /*
653 * This format has ben mandated by the IEEE specifications,
654 * so this line may not be changed to use the __set_bit() format.
655 */
656 bss->tim[(aid)/8] |= 1<<((aid) % 8);
657}
658
659static inline void bss_tim_set(struct ieee80211_local *local,
660 struct ieee80211_if_ap *bss, int aid)
661{
be8755e1 662 read_lock_bh(&local->sta_lock);
f0706e82 663 __bss_tim_set(bss, aid);
be8755e1 664 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 665}
666
667static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
668{
669 /*
670 * This format has ben mandated by the IEEE specifications,
671 * so this line may not be changed to use the __clear_bit() format.
672 */
673 bss->tim[(aid)/8] &= !(1<<((aid) % 8));
674}
675
676static inline void bss_tim_clear(struct ieee80211_local *local,
677 struct ieee80211_if_ap *bss, int aid)
678{
be8755e1 679 read_lock_bh(&local->sta_lock);
f0706e82 680 __bss_tim_clear(bss, aid);
be8755e1 681 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 682}
683
684/**
685 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
686 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
687 * @rate: Transmission rate to check, in 100 kbps
688 *
689 * Check if a given rate is an Extended Rate PHY (ERP) rate.
690 */
691static inline int ieee80211_is_erp_rate(int phymode, int rate)
692{
693 if (phymode == MODE_IEEE80211G) {
694 if (rate != 10 && rate != 20 &&
695 rate != 55 && rate != 110)
696 return 1;
697 }
698 return 0;
699}
700
571ecf67
JB		 701static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
702{
703 return compare_ether_addr(raddr, addr) == 0 ||
704 is_broadcast_ether_addr(raddr);
705}
706
707
f0706e82
JB		 708/* ieee80211.c */
709int ieee80211_hw_config(struct ieee80211_local *local);
710int ieee80211_if_config(struct net_device *dev);
711int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 712void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
713 struct ieee80211_rx_status *status, u32 msg_type);
714void ieee80211_prepare_rates(struct ieee80211_local *local,
715 struct ieee80211_hw_mode *mode);
716void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
717int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
718void ieee80211_if_setup(struct net_device *dev);
719void ieee80211_if_mgmt_setup(struct net_device *dev);
571ecf67
JB		 720struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
721 int phymode, int hwrate);
f0706e82
JB		 722
723/* ieee80211_ioctl.c */
724extern const struct iw_handler_def ieee80211_iw_handler_def;
725
f0706e82
JB		 726
727/* Least common multiple of the used rates (in 100 kbps). This is used to
728 * calculate rate_inv values for each rate so that only integers are needed. */
729#define CHAN_UTIL_RATE_LCM 95040
730/* 1 usec is 1/8 * (95040/10) = 1188 */
731#define CHAN_UTIL_PER_USEC 1188
732/* Amount of bits to shift the result right to scale the total utilization
733 * to values that will not wrap around 32-bit integers. */
734#define CHAN_UTIL_SHIFT 9
735/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
736 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
737 * raw value with about 23 should give utilization in 10th of a percentage
738 * (1/1000). However, utilization is only estimated and not all intervals
739 * between frames etc. are calculated. 18 seems to give numbers that are closer
740 * to the real maximum. */
741#define CHAN_UTIL_PER_10MS 18
742#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
743#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
744
745
746/* ieee80211_ioctl.c */
747int ieee80211_set_compression(struct ieee80211_local *local,
748 struct net_device *dev, struct sta_info *sta);
f0706e82
JB		 749int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
750/* ieee80211_sta.c */
751void ieee80211_sta_timer(unsigned long data);
752void ieee80211_sta_work(struct work_struct *work);
753void ieee80211_sta_scan_work(struct work_struct *work);
754void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
755 struct ieee80211_rx_status *rx_status);
756int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
757int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
758int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
759int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
760void ieee80211_sta_req_auth(struct net_device *dev,
761 struct ieee80211_if_sta *ifsta);
762int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
763void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
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);
f0706e82
JB		 775
776/* ieee80211_iface.c */
777int ieee80211_if_add(struct net_device *dev, const char *name,
778 struct net_device **new_dev, int type);
779void ieee80211_if_set_type(struct net_device *dev, int type);
780void ieee80211_if_reinit(struct net_device *dev);
781void __ieee80211_if_del(struct ieee80211_local *local,
782 struct ieee80211_sub_if_data *sdata);
783int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
784void ieee80211_if_free(struct net_device *dev);
785void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
786int ieee80211_if_add_mgmt(struct ieee80211_local *local);
787void ieee80211_if_del_mgmt(struct ieee80211_local *local);
788
fd8bacc9
DD		 789/* regdomain.c */
790void ieee80211_regdomain_init(void);
791void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
792
571ecf67
JB		 793/* rx handling */
794extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
795extern ieee80211_rx_handler ieee80211_rx_handlers[];
796
e2ebc74d
JB		 797/* tx handling */
798extern ieee80211_tx_handler ieee80211_tx_handlers[];
799void ieee80211_clear_tx_pending(struct ieee80211_local *local);
800void ieee80211_tx_pending(unsigned long data);
801int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
802int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
803int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
804int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev);
805
c2d1560a
JB		 806/* utility functions/constants */
807extern void *mac80211_wiphy_privid; /* for wiphy privid */
808extern const unsigned char rfc1042_header[6];
809extern const unsigned char bridge_tunnel_header[6];
810u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
811int ieee80211_is_eapol(const struct sk_buff *skb);
812int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
813 int rate, int erp, int short_preamble);
eb063c17
JB		 814void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
815 struct ieee80211_hdr *hdr);
f0706e82
JB		 816
817#endif /* IEEE80211_I_H */
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