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Linux 2.6.24-rc2
[deliverable/linux.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)
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)
ddd3d2be 288#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
f0706e82
JB		 289struct ieee80211_sub_if_data {
290 struct list_head list;
fb1c1cd6 291 enum ieee80211_if_types type;
f0706e82
JB		 292
293 struct wireless_dev wdev;
294
11a843b7
JB		 295 /* keys */
296 struct list_head key_list;
297
f0706e82
JB		 298 struct net_device *dev;
299 struct ieee80211_local *local;
300
13262ffd 301 unsigned int flags;
7e9ed188 302
f0706e82
JB		 303 int drop_unencrypted;
304 int eapol; /* 0 = process EAPOL frames as normal data frames,
305 * 1 = send EAPOL frames through wlan#ap to hostapd
306 * (default) */
307 int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
308 * port */
309
310 u16 sequence;
311
312 /* Fragment table for host-based reassembly */
313 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
314 unsigned int fragment_next;
315
316#define NUM_DEFAULT_KEYS 4
317 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
318 struct ieee80211_key *default_key;
319
320 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
321
322 union {
323 struct ieee80211_if_ap ap;
324 struct ieee80211_if_wds wds;
325 struct ieee80211_if_vlan vlan;
326 struct ieee80211_if_sta sta;
327 } u;
328 int channel_use;
329 int channel_use_raw;
e9f207f0
JB		 330
331#ifdef CONFIG_MAC80211_DEBUGFS
332 struct dentry *debugfsdir;
333 union {
334 struct {
335 struct dentry *channel_use;
336 struct dentry *drop_unencrypted;
337 struct dentry *eapol;
338 struct dentry *ieee8021_x;
339 struct dentry *state;
340 struct dentry *bssid;
341 struct dentry *prev_bssid;
342 struct dentry *ssid_len;
343 struct dentry *aid;
344 struct dentry *ap_capab;
345 struct dentry *capab;
346 struct dentry *extra_ie_len;
347 struct dentry *auth_tries;
348 struct dentry *assoc_tries;
349 struct dentry *auth_algs;
350 struct dentry *auth_alg;
351 struct dentry *auth_transaction;
352 struct dentry *flags;
353 } sta;
354 struct {
355 struct dentry *channel_use;
356 struct dentry *drop_unencrypted;
357 struct dentry *eapol;
358 struct dentry *ieee8021_x;
359 struct dentry *num_sta_ps;
360 struct dentry *dtim_period;
361 struct dentry *dtim_count;
362 struct dentry *num_beacons;
363 struct dentry *force_unicast_rateidx;
364 struct dentry *max_ratectrl_rateidx;
365 struct dentry *num_buffered_multicast;
366 struct dentry *beacon_head_len;
367 struct dentry *beacon_tail_len;
368 } ap;
369 struct {
370 struct dentry *channel_use;
371 struct dentry *drop_unencrypted;
372 struct dentry *eapol;
373 struct dentry *ieee8021_x;
374 struct dentry *peer;
375 } wds;
376 struct {
377 struct dentry *channel_use;
378 struct dentry *drop_unencrypted;
379 struct dentry *eapol;
380 struct dentry *ieee8021_x;
e9f207f0
JB		 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 */
f0706e82
JB		 409 int open_count;
410 int monitors;
4150c572 411 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 412 struct iw_statistics wstats;
413 u8 wstats_flags;
b306f453 414 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 415
416 enum {
417 IEEE80211_DEV_UNINITIALIZED = 0,
418 IEEE80211_DEV_REGISTERED,
419 IEEE80211_DEV_UNREGISTERED,
420 } reg_state;
421
422 /* Tasklet and skb queue to process calls from IRQ mode. All frames
423 * added to skb_queue will be processed, but frames in
424 * skb_queue_unreliable may be dropped if the total length of these
425 * queues increases over the limit. */
426#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
427 struct tasklet_struct tasklet;
428 struct sk_buff_head skb_queue;
429 struct sk_buff_head skb_queue_unreliable;
430
431 /* Station data structures */
be8755e1 432 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 433 int num_sta; /* number of stations in sta_list */
434 struct list_head sta_list;
f0706e82
JB		 435 struct sta_info *sta_hash[STA_HASH_SIZE];
436 struct timer_list sta_cleanup;
437
438 unsigned long state[NUM_TX_DATA_QUEUES];
439 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
440 struct tasklet_struct tx_pending_tasklet;
441
53918994
JB		 442 /* number of interfaces with corresponding IFF_ flags */
443 atomic_t iff_allmultis, iff_promiscs;
f0706e82
JB		 444
445 struct rate_control_ref *rate_ctrl;
446
f0706e82
JB		 447 /* Supported and basic rate filters for different modes. These are
448 * pointers to -1 terminated lists and rates in 100 kbps units. */
449 int *supp_rates[NUM_IEEE80211_MODES];
450 int *basic_rates[NUM_IEEE80211_MODES];
451
452 int rts_threshold;
f0706e82
JB		 453 int fragmentation_threshold;
454 int short_retry_limit; /* dot11ShortRetryLimit */
455 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 456
457 struct crypto_blkcipher *wep_tx_tfm;
458 struct crypto_blkcipher *wep_rx_tfm;
459 u32 wep_iv;
f0706e82
JB		 460
461 int bridge_packets; /* bridge packets between associated stations and
462 * deliver multicast frames both back to wireless
463 * media and to the local net stack */
464
465 ieee80211_rx_handler *rx_pre_handlers;
466 ieee80211_rx_handler *rx_handlers;
467 ieee80211_tx_handler *tx_handlers;
468
79010420
JB		 469 struct list_head interfaces;
470
f0706e82
JB		 471 int sta_scanning;
472 int scan_channel_idx;
473 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
474 unsigned long last_scan_completed;
475 struct delayed_work scan_work;
476 struct net_device *scan_dev;
477 struct ieee80211_channel *oper_channel, *scan_channel;
478 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
479 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
480 size_t scan_ssid_len;
481 struct list_head sta_bss_list;
482 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
483 spinlock_t sta_bss_lock;
484#define IEEE80211_SCAN_MATCH_SSID BIT(0)
485#define IEEE80211_SCAN_WPA_ONLY BIT(1)
486#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
487 int scan_flags;
488
489 /* SNMP counters */
490 /* dot11CountersTable */
491 u32 dot11TransmittedFragmentCount;
492 u32 dot11MulticastTransmittedFrameCount;
493 u32 dot11FailedCount;
494 u32 dot11RetryCount;
495 u32 dot11MultipleRetryCount;
496 u32 dot11FrameDuplicateCount;
497 u32 dot11ReceivedFragmentCount;
498 u32 dot11MulticastReceivedFrameCount;
499 u32 dot11TransmittedFrameCount;
500 u32 dot11WEPUndecryptableCount;
501
502#ifdef CONFIG_MAC80211_LEDS
503 int tx_led_counter, rx_led_counter;
47f0c502
MB		 504 struct led_trigger *tx_led, *rx_led, *assoc_led;
505 char tx_led_name[32], rx_led_name[32], assoc_led_name[32];
f0706e82
JB		 506#endif
507
508 u32 channel_use;
509 u32 channel_use_raw;
f0706e82 510
e9f207f0
JB		 511#ifdef CONFIG_MAC80211_DEBUGFS
512 struct work_struct sta_debugfs_add;
513#endif
514
f0706e82
JB		 515#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
516 /* TX/RX handler statistics */
517 unsigned int tx_handlers_drop;
518 unsigned int tx_handlers_queued;
519 unsigned int tx_handlers_drop_unencrypted;
520 unsigned int tx_handlers_drop_fragment;
521 unsigned int tx_handlers_drop_wep;
522 unsigned int tx_handlers_drop_not_assoc;
523 unsigned int tx_handlers_drop_unauth_port;
524 unsigned int rx_handlers_drop;
525 unsigned int rx_handlers_queued;
526 unsigned int rx_handlers_drop_nullfunc;
527 unsigned int rx_handlers_drop_defrag;
528 unsigned int rx_handlers_drop_short;
529 unsigned int rx_handlers_drop_passive_scan;
530 unsigned int tx_expand_skb_head;
531 unsigned int tx_expand_skb_head_cloned;
532 unsigned int rx_expand_skb_head;
533 unsigned int rx_expand_skb_head2;
534 unsigned int rx_handlers_fragments;
535 unsigned int tx_status_drop;
536 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
537 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
538#define I802_DEBUG_INC(c) (c)++
539#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
540#define I802_DEBUG_INC(c) do { } while (0)
541#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
542
543
f0706e82
JB		 544 int total_ps_buffered; /* total number of all buffered unicast and
545 * multicast packets for power saving stations
546 */
f0706e82
JB		 547 int wifi_wme_noack_test;
548 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
549
550 unsigned int enabled_modes; /* bitfield of allowed modes;
551 * (1 << MODE_*) */
552 unsigned int hw_modes; /* bitfield of supported hardware modes;
553 * (1 << MODE_*) */
554
e9f207f0
JB		 555#ifdef CONFIG_MAC80211_DEBUGFS
556 struct local_debugfsdentries {
557 struct dentry *channel;
558 struct dentry *frequency;
e9f207f0
JB		 559 struct dentry *antenna_sel_tx;
560 struct dentry *antenna_sel_rx;
561 struct dentry *bridge_packets;
e9f207f0
JB		 562 struct dentry *rts_threshold;
563 struct dentry *fragmentation_threshold;
564 struct dentry *short_retry_limit;
565 struct dentry *long_retry_limit;
566 struct dentry *total_ps_buffered;
567 struct dentry *mode;
568 struct dentry *wep_iv;
e9f207f0
JB		 569 struct dentry *modes;
570 struct dentry *statistics;
571 struct local_debugfsdentries_statsdentries {
572 struct dentry *transmitted_fragment_count;
573 struct dentry *multicast_transmitted_frame_count;
574 struct dentry *failed_count;
575 struct dentry *retry_count;
576 struct dentry *multiple_retry_count;
577 struct dentry *frame_duplicate_count;
578 struct dentry *received_fragment_count;
579 struct dentry *multicast_received_frame_count;
580 struct dentry *transmitted_frame_count;
581 struct dentry *wep_undecryptable_count;
582 struct dentry *num_scans;
583#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
584 struct dentry *tx_handlers_drop;
585 struct dentry *tx_handlers_queued;
586 struct dentry *tx_handlers_drop_unencrypted;
587 struct dentry *tx_handlers_drop_fragment;
588 struct dentry *tx_handlers_drop_wep;
589 struct dentry *tx_handlers_drop_not_assoc;
590 struct dentry *tx_handlers_drop_unauth_port;
591 struct dentry *rx_handlers_drop;
592 struct dentry *rx_handlers_queued;
593 struct dentry *rx_handlers_drop_nullfunc;
594 struct dentry *rx_handlers_drop_defrag;
595 struct dentry *rx_handlers_drop_short;
596 struct dentry *rx_handlers_drop_passive_scan;
597 struct dentry *tx_expand_skb_head;
598 struct dentry *tx_expand_skb_head_cloned;
599 struct dentry *rx_expand_skb_head;
600 struct dentry *rx_expand_skb_head2;
601 struct dentry *rx_handlers_fragments;
602 struct dentry *tx_status_drop;
603 struct dentry *wme_tx_queue;
604 struct dentry *wme_rx_queue;
605#endif
606 struct dentry *dot11ACKFailureCount;
607 struct dentry *dot11RTSFailureCount;
608 struct dentry *dot11FCSErrorCount;
609 struct dentry *dot11RTSSuccessCount;
610 } stats;
611 struct dentry *stations;
612 struct dentry *keys;
613 } debugfs;
614#endif
f0706e82
JB		 615};
616
617static inline struct ieee80211_local *hw_to_local(
618 struct ieee80211_hw *hw)
619{
620 return container_of(hw, struct ieee80211_local, hw);
621}
622
623static inline struct ieee80211_hw *local_to_hw(
624 struct ieee80211_local *local)
625{
626 return &local->hw;
627}
628
629enum ieee80211_link_state_t {
630 IEEE80211_LINK_STATE_XOFF = 0,
631 IEEE80211_LINK_STATE_PENDING,
632};
633
634struct sta_attribute {
635 struct attribute attr;
636 ssize_t (*show)(const struct sta_info *, char *buf);
637 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
638};
639
30ccb088 640static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 641{
642 /*
30ccb088 643 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 644 * so this line may not be changed to use the __set_bit() format.
645 */
30ccb088 646 bss->tim[aid / 8] |= (1 << (aid % 8));
f0706e82
JB		 647}
648
649static inline void bss_tim_set(struct ieee80211_local *local,
30ccb088 650 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 651{
be8755e1 652 read_lock_bh(&local->sta_lock);
f0706e82 653 __bss_tim_set(bss, aid);
be8755e1 654 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 655}
656
30ccb088 657static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 658{
659 /*
30ccb088 660 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 661 * so this line may not be changed to use the __clear_bit() format.
662 */
30ccb088 663 bss->tim[aid / 8] &= ~(1 << (aid % 8));
f0706e82
JB		 664}
665
666static inline void bss_tim_clear(struct ieee80211_local *local,
30ccb088 667 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 668{
be8755e1 669 read_lock_bh(&local->sta_lock);
f0706e82 670 __bss_tim_clear(bss, aid);
be8755e1 671 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 672}
673
674/**
675 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
676 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
677 * @rate: Transmission rate to check, in 100 kbps
678 *
679 * Check if a given rate is an Extended Rate PHY (ERP) rate.
680 */
681static inline int ieee80211_is_erp_rate(int phymode, int rate)
682{
683 if (phymode == MODE_IEEE80211G) {
684 if (rate != 10 && rate != 20 &&
685 rate != 55 && rate != 110)
686 return 1;
687 }
688 return 0;
689}
690
571ecf67
JB		 691static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
692{
693 return compare_ether_addr(raddr, addr) == 0 ||
694 is_broadcast_ether_addr(raddr);
695}
696
697
f0706e82
JB		 698/* ieee80211.c */
699int ieee80211_hw_config(struct ieee80211_local *local);
700int ieee80211_if_config(struct net_device *dev);
701int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 702void ieee80211_prepare_rates(struct ieee80211_local *local,
703 struct ieee80211_hw_mode *mode);
704void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
705int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
706void ieee80211_if_setup(struct net_device *dev);
571ecf67
JB		 707struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
708 int phymode, int hwrate);
f0706e82
JB		 709
710/* ieee80211_ioctl.c */
711extern const struct iw_handler_def ieee80211_iw_handler_def;
712
f0706e82
JB		 713
714/* Least common multiple of the used rates (in 100 kbps). This is used to
715 * calculate rate_inv values for each rate so that only integers are needed. */
716#define CHAN_UTIL_RATE_LCM 95040
717/* 1 usec is 1/8 * (95040/10) = 1188 */
718#define CHAN_UTIL_PER_USEC 1188
719/* Amount of bits to shift the result right to scale the total utilization
720 * to values that will not wrap around 32-bit integers. */
721#define CHAN_UTIL_SHIFT 9
722/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
723 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
724 * raw value with about 23 should give utilization in 10th of a percentage
725 * (1/1000). However, utilization is only estimated and not all intervals
726 * between frames etc. are calculated. 18 seems to give numbers that are closer
727 * to the real maximum. */
728#define CHAN_UTIL_PER_10MS 18
729#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
730#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
731
732
733/* ieee80211_ioctl.c */
734int ieee80211_set_compression(struct ieee80211_local *local,
735 struct net_device *dev, struct sta_info *sta);
f0706e82
JB		 736int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
737/* ieee80211_sta.c */
738void ieee80211_sta_timer(unsigned long data);
739void ieee80211_sta_work(struct work_struct *work);
740void ieee80211_sta_scan_work(struct work_struct *work);
741void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
742 struct ieee80211_rx_status *rx_status);
743int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
744int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
745int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
746int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
747void ieee80211_sta_req_auth(struct net_device *dev,
748 struct ieee80211_if_sta *ifsta);
749int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
750void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
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);
795int ieee80211_is_eapol(const struct sk_buff *skb);
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 */
Linux kernel - Deliverables
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