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[MAC80211]: rx cleanups (2)
[GitHub/mt8127/android_kernel_alcatel_ttab.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
116struct ieee80211_txrx_data {
117 struct sk_buff *skb;
118 struct net_device *dev;
119 struct ieee80211_local *local;
120 struct ieee80211_sub_if_data *sdata;
121 struct sta_info *sta;
122 u16 fc, ethertype;
123 struct ieee80211_key *key;
124 unsigned int fragmented:1; /* whether the MSDU was fragmented */
125 union {
126 struct {
127 struct ieee80211_tx_control *control;
128 unsigned int unicast:1;
129 unsigned int ps_buffered:1;
130 unsigned int short_preamble:1;
131 unsigned int probe_last_frag:1;
132 struct ieee80211_hw_mode *mode;
133 struct ieee80211_rate *rate;
134 /* use this rate (if set) for last fragment; rate can
135 * be set to lower rate for the first fragments, e.g.,
136 * when using CTS protection with IEEE 802.11g. */
137 struct ieee80211_rate *last_frag_rate;
138 int last_frag_hwrate;
139 int mgmt_interface;
140
141 /* Extra fragments (in addition to the first fragment
142 * in skb) */
143 int num_extra_frag;
144 struct sk_buff **extra_frag;
145 } tx;
146 struct {
147 struct ieee80211_rx_status *status;
148 int sent_ps_buffered;
149 int queue;
150 int load;
151 unsigned int in_scan:1;
152 /* frame is destined to interface currently processed
153 * (including multicast frames) */
154 unsigned int ra_match:1;
155 } rx;
156 } u;
157};
158
159/* Stored in sk_buff->cb */
160struct ieee80211_tx_packet_data {
161 int ifindex;
162 unsigned long jiffies;
163 unsigned int req_tx_status:1;
164 unsigned int do_not_encrypt:1;
165 unsigned int requeue:1;
166 unsigned int mgmt_iface:1;
167 unsigned int queue:4;
168};
169
170struct ieee80211_tx_stored_packet {
171 struct ieee80211_tx_control control;
172 struct sk_buff *skb;
173 int num_extra_frag;
174 struct sk_buff **extra_frag;
175 int last_frag_rateidx;
176 int last_frag_hwrate;
177 struct ieee80211_rate *last_frag_rate;
178 unsigned int last_frag_rate_ctrl_probe:1;
179};
180
181typedef ieee80211_txrx_result (*ieee80211_tx_handler)
182(struct ieee80211_txrx_data *tx);
183
184typedef ieee80211_txrx_result (*ieee80211_rx_handler)
185(struct ieee80211_txrx_data *rx);
186
187struct ieee80211_if_ap {
188 u8 *beacon_head, *beacon_tail;
189 int beacon_head_len, beacon_tail_len;
190
191 u8 ssid[IEEE80211_MAX_SSID_LEN];
192 size_t ssid_len;
193 u8 *generic_elem;
194 size_t generic_elem_len;
195
196 /* yes, this looks ugly, but guarantees that we can later use
197 * bitmap_empty :)
198 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
199 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
200 atomic_t num_sta_ps; /* number of stations in PS mode */
201 struct sk_buff_head ps_bc_buf;
202 int dtim_period, dtim_count;
203 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
204 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
205 int num_beacons; /* number of TXed beacon frames for this BSS */
206};
207
208struct ieee80211_if_wds {
209 u8 remote_addr[ETH_ALEN];
210 struct sta_info *sta;
211};
212
213struct ieee80211_if_vlan {
214 u8 id;
215};
216
217struct ieee80211_if_sta {
218 enum {
219 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
220 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
221 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
222 } state;
223 struct timer_list timer;
224 struct work_struct work;
225 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
226 u8 ssid[IEEE80211_MAX_SSID_LEN];
227 size_t ssid_len;
228 u16 aid;
229 u16 ap_capab, capab;
230 u8 *extra_ie; /* to be added to the end of AssocReq */
231 size_t extra_ie_len;
232
233 /* The last AssocReq/Resp IEs */
234 u8 *assocreq_ies, *assocresp_ies;
235 size_t assocreq_ies_len, assocresp_ies_len;
236
237 int auth_tries, assoc_tries;
238
239 unsigned int ssid_set:1;
240 unsigned int bssid_set:1;
241 unsigned int prev_bssid_set:1;
242 unsigned int authenticated:1;
243 unsigned int associated:1;
244 unsigned int probereq_poll:1;
f0706e82
JB		 245 unsigned int create_ibss:1;
246 unsigned int mixed_cell:1;
247 unsigned int wmm_enabled:1;
248 unsigned int auto_ssid_sel:1;
249 unsigned int auto_bssid_sel:1;
250 unsigned int auto_channel_sel:1;
251#define IEEE80211_STA_REQ_SCAN 0
252#define IEEE80211_STA_REQ_AUTH 1
253#define IEEE80211_STA_REQ_RUN 2
254 unsigned long request;
255 struct sk_buff_head skb_queue;
256
257 int key_mgmt;
258 unsigned long last_probe;
259
260#define IEEE80211_AUTH_ALG_OPEN BIT(0)
261#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
262#define IEEE80211_AUTH_ALG_LEAP BIT(2)
263 unsigned int auth_algs; /* bitfield of allowed auth algs */
264 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
265 int auth_transaction;
266
267 unsigned long ibss_join_req;
268 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
269 u32 supp_rates_bits;
270
271 int wmm_last_param_set;
272};
273
274
275struct ieee80211_sub_if_data {
276 struct list_head list;
277 unsigned int type;
278
279 struct wireless_dev wdev;
280
281 struct net_device *dev;
282 struct ieee80211_local *local;
283
284 int mc_count;
285 unsigned int allmulti:1;
286 unsigned int promisc:1;
63fc33ce 287 unsigned int use_protection:1; /* CTS protect ERP frames */
f0706e82
JB		 288
289 struct net_device_stats stats;
290 int drop_unencrypted;
291 int eapol; /* 0 = process EAPOL frames as normal data frames,
292 * 1 = send EAPOL frames through wlan#ap to hostapd
293 * (default) */
294 int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
295 * port */
296
297 u16 sequence;
298
299 /* Fragment table for host-based reassembly */
300 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
301 unsigned int fragment_next;
302
303#define NUM_DEFAULT_KEYS 4
304 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
305 struct ieee80211_key *default_key;
306
307 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
308
309 union {
310 struct ieee80211_if_ap ap;
311 struct ieee80211_if_wds wds;
312 struct ieee80211_if_vlan vlan;
313 struct ieee80211_if_sta sta;
314 } u;
315 int channel_use;
316 int channel_use_raw;
e9f207f0
JB		 317
318#ifdef CONFIG_MAC80211_DEBUGFS
319 struct dentry *debugfsdir;
320 union {
321 struct {
322 struct dentry *channel_use;
323 struct dentry *drop_unencrypted;
324 struct dentry *eapol;
325 struct dentry *ieee8021_x;
326 struct dentry *state;
327 struct dentry *bssid;
328 struct dentry *prev_bssid;
329 struct dentry *ssid_len;
330 struct dentry *aid;
331 struct dentry *ap_capab;
332 struct dentry *capab;
333 struct dentry *extra_ie_len;
334 struct dentry *auth_tries;
335 struct dentry *assoc_tries;
336 struct dentry *auth_algs;
337 struct dentry *auth_alg;
338 struct dentry *auth_transaction;
339 struct dentry *flags;
340 } sta;
341 struct {
342 struct dentry *channel_use;
343 struct dentry *drop_unencrypted;
344 struct dentry *eapol;
345 struct dentry *ieee8021_x;
346 struct dentry *num_sta_ps;
347 struct dentry *dtim_period;
348 struct dentry *dtim_count;
349 struct dentry *num_beacons;
350 struct dentry *force_unicast_rateidx;
351 struct dentry *max_ratectrl_rateidx;
352 struct dentry *num_buffered_multicast;
353 struct dentry *beacon_head_len;
354 struct dentry *beacon_tail_len;
355 } ap;
356 struct {
357 struct dentry *channel_use;
358 struct dentry *drop_unencrypted;
359 struct dentry *eapol;
360 struct dentry *ieee8021_x;
361 struct dentry *peer;
362 } wds;
363 struct {
364 struct dentry *channel_use;
365 struct dentry *drop_unencrypted;
366 struct dentry *eapol;
367 struct dentry *ieee8021_x;
368 struct dentry *vlan_id;
369 } vlan;
370 struct {
371 struct dentry *mode;
372 } monitor;
373 struct dentry *default_key;
374 } debugfs;
375#endif
f0706e82
JB		 376};
377
378#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
379
380enum {
381 IEEE80211_RX_MSG = 1,
382 IEEE80211_TX_STATUS_MSG = 2,
383};
384
385struct ieee80211_local {
386 /* embed the driver visible part.
387 * don't cast (use the static inlines below), but we keep
388 * it first anyway so they become a no-op */
389 struct ieee80211_hw hw;
390
391 const struct ieee80211_ops *ops;
392
393 /* List of registered struct ieee80211_hw_mode */
394 struct list_head modes_list;
395
396 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
397 struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
398 int open_count;
399 int monitors;
400 struct iw_statistics wstats;
401 u8 wstats_flags;
b306f453 402 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 403
404 enum {
405 IEEE80211_DEV_UNINITIALIZED = 0,
406 IEEE80211_DEV_REGISTERED,
407 IEEE80211_DEV_UNREGISTERED,
408 } reg_state;
409
410 /* Tasklet and skb queue to process calls from IRQ mode. All frames
411 * added to skb_queue will be processed, but frames in
412 * skb_queue_unreliable may be dropped if the total length of these
413 * queues increases over the limit. */
414#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
415 struct tasklet_struct tasklet;
416 struct sk_buff_head skb_queue;
417 struct sk_buff_head skb_queue_unreliable;
418
419 /* Station data structures */
420 spinlock_t sta_lock; /* mutex for STA data structures */
421 int num_sta; /* number of stations in sta_list */
422 struct list_head sta_list;
423 struct list_head deleted_sta_list;
424 struct sta_info *sta_hash[STA_HASH_SIZE];
425 struct timer_list sta_cleanup;
426
427 unsigned long state[NUM_TX_DATA_QUEUES];
428 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
429 struct tasklet_struct tx_pending_tasklet;
430
431 int mc_count; /* total count of multicast entries in all interfaces */
432 int iff_allmultis, iff_promiscs;
433 /* number of interfaces with corresponding IFF_ flags */
434
435 struct rate_control_ref *rate_ctrl;
436
437 int next_mode; /* MODE_IEEE80211*
438 * The mode preference for next channel change. This is
439 * used to select .11g vs. .11b channels (or 4.9 GHz vs.
440 * .11a) when the channel number is not unique. */
441
442 /* Supported and basic rate filters for different modes. These are
443 * pointers to -1 terminated lists and rates in 100 kbps units. */
444 int *supp_rates[NUM_IEEE80211_MODES];
445 int *basic_rates[NUM_IEEE80211_MODES];
446
447 int rts_threshold;
f0706e82
JB		 448 int fragmentation_threshold;
449 int short_retry_limit; /* dot11ShortRetryLimit */
450 int long_retry_limit; /* dot11LongRetryLimit */
451 int short_preamble; /* use short preamble with IEEE 802.11b */
452
453 struct crypto_blkcipher *wep_tx_tfm;
454 struct crypto_blkcipher *wep_rx_tfm;
455 u32 wep_iv;
456 int key_tx_rx_threshold; /* number of times any key can be used in TX
457 * or RX before generating a rekey
458 * notification; 0 = notification disabled. */
459
460 int bridge_packets; /* bridge packets between associated stations and
461 * deliver multicast frames both back to wireless
462 * media and to the local net stack */
463
464 ieee80211_rx_handler *rx_pre_handlers;
465 ieee80211_rx_handler *rx_handlers;
466 ieee80211_tx_handler *tx_handlers;
467
468 rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under
469 * sta_bss_lock or sta_lock. */
470 struct list_head sub_if_list;
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;
504 struct led_trigger *tx_led, *rx_led;
505 char tx_led_name[32], rx_led_name[32];
506#endif
507
508 u32 channel_use;
509 u32 channel_use_raw;
510 u32 stat_time;
511 struct timer_list stat_timer;
512
e9f207f0
JB		 513#ifdef CONFIG_MAC80211_DEBUGFS
514 struct work_struct sta_debugfs_add;
515#endif
516
f0706e82
JB		 517 enum {
518 STA_ANTENNA_SEL_AUTO = 0,
519 STA_ANTENNA_SEL_SW_CTRL = 1,
520 STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2
521 } sta_antenna_sel;
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
552 int default_wep_only; /* only default WEP keys are used with this
553 * interface; this is used to decide when hwaccel
554 * can be used with default keys */
555 int total_ps_buffered; /* total number of all buffered unicast and
556 * multicast packets for power saving stations
557 */
558 int allow_broadcast_always; /* whether to allow TX of broadcast frames
559 * even when there are no associated STAs
560 */
561
562 int wifi_wme_noack_test;
563 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
564
565 unsigned int enabled_modes; /* bitfield of allowed modes;
566 * (1 << MODE_*) */
567 unsigned int hw_modes; /* bitfield of supported hardware modes;
568 * (1 << MODE_*) */
569
570 int user_space_mlme;
e9f207f0
JB		 571
572#ifdef CONFIG_MAC80211_DEBUGFS
573 struct local_debugfsdentries {
574 struct dentry *channel;
575 struct dentry *frequency;
576 struct dentry *radar_detect;
577 struct dentry *antenna_sel_tx;
578 struct dentry *antenna_sel_rx;
579 struct dentry *bridge_packets;
580 struct dentry *key_tx_rx_threshold;
581 struct dentry *rts_threshold;
582 struct dentry *fragmentation_threshold;
583 struct dentry *short_retry_limit;
584 struct dentry *long_retry_limit;
585 struct dentry *total_ps_buffered;
586 struct dentry *mode;
587 struct dentry *wep_iv;
588 struct dentry *tx_power_reduction;
589 struct dentry *modes;
590 struct dentry *statistics;
591 struct local_debugfsdentries_statsdentries {
592 struct dentry *transmitted_fragment_count;
593 struct dentry *multicast_transmitted_frame_count;
594 struct dentry *failed_count;
595 struct dentry *retry_count;
596 struct dentry *multiple_retry_count;
597 struct dentry *frame_duplicate_count;
598 struct dentry *received_fragment_count;
599 struct dentry *multicast_received_frame_count;
600 struct dentry *transmitted_frame_count;
601 struct dentry *wep_undecryptable_count;
602 struct dentry *num_scans;
603#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
604 struct dentry *tx_handlers_drop;
605 struct dentry *tx_handlers_queued;
606 struct dentry *tx_handlers_drop_unencrypted;
607 struct dentry *tx_handlers_drop_fragment;
608 struct dentry *tx_handlers_drop_wep;
609 struct dentry *tx_handlers_drop_not_assoc;
610 struct dentry *tx_handlers_drop_unauth_port;
611 struct dentry *rx_handlers_drop;
612 struct dentry *rx_handlers_queued;
613 struct dentry *rx_handlers_drop_nullfunc;
614 struct dentry *rx_handlers_drop_defrag;
615 struct dentry *rx_handlers_drop_short;
616 struct dentry *rx_handlers_drop_passive_scan;
617 struct dentry *tx_expand_skb_head;
618 struct dentry *tx_expand_skb_head_cloned;
619 struct dentry *rx_expand_skb_head;
620 struct dentry *rx_expand_skb_head2;
621 struct dentry *rx_handlers_fragments;
622 struct dentry *tx_status_drop;
623 struct dentry *wme_tx_queue;
624 struct dentry *wme_rx_queue;
625#endif
626 struct dentry *dot11ACKFailureCount;
627 struct dentry *dot11RTSFailureCount;
628 struct dentry *dot11FCSErrorCount;
629 struct dentry *dot11RTSSuccessCount;
630 } stats;
631 struct dentry *stations;
632 struct dentry *keys;
633 } debugfs;
634#endif
f0706e82
JB		 635};
636
637static inline struct ieee80211_local *hw_to_local(
638 struct ieee80211_hw *hw)
639{
640 return container_of(hw, struct ieee80211_local, hw);
641}
642
643static inline struct ieee80211_hw *local_to_hw(
644 struct ieee80211_local *local)
645{
646 return &local->hw;
647}
648
649enum ieee80211_link_state_t {
650 IEEE80211_LINK_STATE_XOFF = 0,
651 IEEE80211_LINK_STATE_PENDING,
652};
653
654struct sta_attribute {
655 struct attribute attr;
656 ssize_t (*show)(const struct sta_info *, char *buf);
657 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
658};
659
660static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid)
661{
662 /*
663 * This format has ben mandated by the IEEE specifications,
664 * so this line may not be changed to use the __set_bit() format.
665 */
666 bss->tim[(aid)/8] |= 1<<((aid) % 8);
667}
668
669static inline void bss_tim_set(struct ieee80211_local *local,
670 struct ieee80211_if_ap *bss, int aid)
671{
672 spin_lock_bh(&local->sta_lock);
673 __bss_tim_set(bss, aid);
674 spin_unlock_bh(&local->sta_lock);
675}
676
677static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
678{
679 /*
680 * This format has ben mandated by the IEEE specifications,
681 * so this line may not be changed to use the __clear_bit() format.
682 */
683 bss->tim[(aid)/8] &= !(1<<((aid) % 8));
684}
685
686static inline void bss_tim_clear(struct ieee80211_local *local,
687 struct ieee80211_if_ap *bss, int aid)
688{
689 spin_lock_bh(&local->sta_lock);
690 __bss_tim_clear(bss, aid);
691 spin_unlock_bh(&local->sta_lock);
692}
693
694/**
695 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
696 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
697 * @rate: Transmission rate to check, in 100 kbps
698 *
699 * Check if a given rate is an Extended Rate PHY (ERP) rate.
700 */
701static inline int ieee80211_is_erp_rate(int phymode, int rate)
702{
703 if (phymode == MODE_IEEE80211G) {
704 if (rate != 10 && rate != 20 &&
705 rate != 55 && rate != 110)
706 return 1;
707 }
708 return 0;
709}
710
571ecf67
JB		 711static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
712{
713 return compare_ether_addr(raddr, addr) == 0 ||
714 is_broadcast_ether_addr(raddr);
715}
716
717
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JB		 718/* ieee80211.c */
719int ieee80211_hw_config(struct ieee80211_local *local);
720int ieee80211_if_config(struct net_device *dev);
721int ieee80211_if_config_beacon(struct net_device *dev);
722struct ieee80211_key_conf *
723ieee80211_key_data2conf(struct ieee80211_local *local,
724 const struct ieee80211_key *data);
725struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
726 int idx, size_t key_len, gfp_t flags);
727void ieee80211_key_free(struct ieee80211_key *key);
728void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
729 struct ieee80211_rx_status *status, u32 msg_type);
730void ieee80211_prepare_rates(struct ieee80211_local *local,
731 struct ieee80211_hw_mode *mode);
732void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
733int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
40f7cac9
JB		 734int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
735int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
f0706e82
JB		 736void ieee80211_if_setup(struct net_device *dev);
737void ieee80211_if_mgmt_setup(struct net_device *dev);
738int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
739 const char *name);
740struct net_device_stats *ieee80211_dev_stats(struct net_device *dev);
571ecf67
JB		 741struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
742 int phymode, int hwrate);
743void ieee80211_key_threshold_notify(struct net_device *dev,
744 struct ieee80211_key *key,
745 struct sta_info *sta);
746u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
747int ieee80211_is_eapol(const struct sk_buff *skb);
748
749extern const unsigned char rfc1042_header[];
750extern const unsigned char bridge_tunnel_header[];
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JB		 751
752/* ieee80211_ioctl.c */
753extern const struct iw_handler_def ieee80211_iw_handler_def;
754
755void ieee80211_update_default_wep_only(struct ieee80211_local *local);
756
757
758/* Least common multiple of the used rates (in 100 kbps). This is used to
759 * calculate rate_inv values for each rate so that only integers are needed. */
760#define CHAN_UTIL_RATE_LCM 95040
761/* 1 usec is 1/8 * (95040/10) = 1188 */
762#define CHAN_UTIL_PER_USEC 1188
763/* Amount of bits to shift the result right to scale the total utilization
764 * to values that will not wrap around 32-bit integers. */
765#define CHAN_UTIL_SHIFT 9
766/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
767 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
768 * raw value with about 23 should give utilization in 10th of a percentage
769 * (1/1000). However, utilization is only estimated and not all intervals
770 * between frames etc. are calculated. 18 seems to give numbers that are closer
771 * to the real maximum. */
772#define CHAN_UTIL_PER_10MS 18
773#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
774#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
775
776
777/* ieee80211_ioctl.c */
778int ieee80211_set_compression(struct ieee80211_local *local,
779 struct net_device *dev, struct sta_info *sta);
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JB		 780int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
781/* ieee80211_sta.c */
782void ieee80211_sta_timer(unsigned long data);
783void ieee80211_sta_work(struct work_struct *work);
784void ieee80211_sta_scan_work(struct work_struct *work);
785void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
786 struct ieee80211_rx_status *rx_status);
787int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
788int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
789int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
790int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
791void ieee80211_sta_req_auth(struct net_device *dev,
792 struct ieee80211_if_sta *ifsta);
793int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
794void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
795 struct ieee80211_rx_status *rx_status);
796void ieee80211_rx_bss_list_init(struct net_device *dev);
797void ieee80211_rx_bss_list_deinit(struct net_device *dev);
798int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
799struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
800 struct sk_buff *skb, u8 *bssid,
801 u8 *addr);
802int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
803int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
804
805/* ieee80211_iface.c */
806int ieee80211_if_add(struct net_device *dev, const char *name,
807 struct net_device **new_dev, int type);
808void ieee80211_if_set_type(struct net_device *dev, int type);
809void ieee80211_if_reinit(struct net_device *dev);
810void __ieee80211_if_del(struct ieee80211_local *local,
811 struct ieee80211_sub_if_data *sdata);
812int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
813void ieee80211_if_free(struct net_device *dev);
814void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
815int ieee80211_if_add_mgmt(struct ieee80211_local *local);
816void ieee80211_if_del_mgmt(struct ieee80211_local *local);
817
fd8bacc9
DD		 818/* regdomain.c */
819void ieee80211_regdomain_init(void);
820void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
821
571ecf67
JB		 822/* rx handling */
823extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
824extern ieee80211_rx_handler ieee80211_rx_handlers[];
825
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JB		 826/* for wiphy privid */
827extern void *mac80211_wiphy_privid;
828
829#endif /* IEEE80211_I_H */
kernel source for telekom puls (alcatel/mediatek)