diff options
Diffstat (limited to 'net/mac80211/ieee80211_i.h')
-rw-r--r-- | net/mac80211/ieee80211_i.h | 671 |
1 files changed, 671 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h new file mode 100644 index 000000000000..ae94d6461798 --- /dev/null +++ b/net/mac80211/ieee80211_i.h | |||
@@ -0,0 +1,671 @@ | |||
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> | ||
24 | #include <net/wireless.h> | ||
25 | #include "ieee80211_key.h" | ||
26 | #include "sta_info.h" | ||
27 | |||
28 | /* ieee80211.o internal definitions, etc. These are not included into | ||
29 | * low-level drivers. */ | ||
30 | |||
31 | #ifndef ETH_P_PAE | ||
32 | #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ | ||
33 | #endif /* ETH_P_PAE */ | ||
34 | |||
35 | #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08) | ||
36 | |||
37 | struct ieee80211_local; | ||
38 | |||
39 | #define BIT(x) (1 << (x)) | ||
40 | |||
41 | #define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3) | ||
42 | |||
43 | /* Maximum number of broadcast/multicast frames to buffer when some of the | ||
44 | * associated stations are using power saving. */ | ||
45 | #define AP_MAX_BC_BUFFER 128 | ||
46 | |||
47 | /* Maximum number of frames buffered to all STAs, including multicast frames. | ||
48 | * Note: increasing this limit increases the potential memory requirement. Each | ||
49 | * frame can be up to about 2 kB long. */ | ||
50 | #define TOTAL_MAX_TX_BUFFER 512 | ||
51 | |||
52 | /* Required encryption head and tailroom */ | ||
53 | #define IEEE80211_ENCRYPT_HEADROOM 8 | ||
54 | #define IEEE80211_ENCRYPT_TAILROOM 12 | ||
55 | |||
56 | /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent | ||
57 | * reception of at least three fragmented frames. This limit can be increased | ||
58 | * by changing this define, at the cost of slower frame reassembly and | ||
59 | * increased memory use (about 2 kB of RAM per entry). */ | ||
60 | #define IEEE80211_FRAGMENT_MAX 4 | ||
61 | |||
62 | struct ieee80211_fragment_entry { | ||
63 | unsigned long first_frag_time; | ||
64 | unsigned int seq; | ||
65 | unsigned int rx_queue; | ||
66 | unsigned int last_frag; | ||
67 | unsigned int extra_len; | ||
68 | struct sk_buff_head skb_list; | ||
69 | int ccmp; /* Whether fragments were encrypted with CCMP */ | ||
70 | u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ | ||
71 | }; | ||
72 | |||
73 | |||
74 | struct ieee80211_sta_bss { | ||
75 | struct list_head list; | ||
76 | struct ieee80211_sta_bss *hnext; | ||
77 | atomic_t users; | ||
78 | |||
79 | u8 bssid[ETH_ALEN]; | ||
80 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | ||
81 | size_t ssid_len; | ||
82 | u16 capability; /* host byte order */ | ||
83 | int hw_mode; | ||
84 | int channel; | ||
85 | int freq; | ||
86 | int rssi, signal, noise; | ||
87 | u8 *wpa_ie; | ||
88 | size_t wpa_ie_len; | ||
89 | u8 *rsn_ie; | ||
90 | size_t rsn_ie_len; | ||
91 | u8 *wmm_ie; | ||
92 | size_t wmm_ie_len; | ||
93 | #define IEEE80211_MAX_SUPP_RATES 32 | ||
94 | u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; | ||
95 | size_t supp_rates_len; | ||
96 | int beacon_int; | ||
97 | u64 timestamp; | ||
98 | |||
99 | int probe_resp; | ||
100 | unsigned long last_update; | ||
101 | |||
102 | }; | ||
103 | |||
104 | |||
105 | typedef enum { | ||
106 | TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED | ||
107 | } ieee80211_txrx_result; | ||
108 | |||
109 | struct ieee80211_txrx_data { | ||
110 | struct sk_buff *skb; | ||
111 | struct net_device *dev; | ||
112 | struct ieee80211_local *local; | ||
113 | struct ieee80211_sub_if_data *sdata; | ||
114 | struct sta_info *sta; | ||
115 | u16 fc, ethertype; | ||
116 | struct ieee80211_key *key; | ||
117 | unsigned int fragmented:1; /* whether the MSDU was fragmented */ | ||
118 | union { | ||
119 | struct { | ||
120 | struct ieee80211_tx_control *control; | ||
121 | unsigned int unicast:1; | ||
122 | unsigned int ps_buffered:1; | ||
123 | unsigned int short_preamble:1; | ||
124 | unsigned int probe_last_frag:1; | ||
125 | struct ieee80211_hw_mode *mode; | ||
126 | struct ieee80211_rate *rate; | ||
127 | /* use this rate (if set) for last fragment; rate can | ||
128 | * be set to lower rate for the first fragments, e.g., | ||
129 | * when using CTS protection with IEEE 802.11g. */ | ||
130 | struct ieee80211_rate *last_frag_rate; | ||
131 | int last_frag_hwrate; | ||
132 | int mgmt_interface; | ||
133 | |||
134 | /* Extra fragments (in addition to the first fragment | ||
135 | * in skb) */ | ||
136 | int num_extra_frag; | ||
137 | struct sk_buff **extra_frag; | ||
138 | } tx; | ||
139 | struct { | ||
140 | struct ieee80211_rx_status *status; | ||
141 | int sent_ps_buffered; | ||
142 | int queue; | ||
143 | int load; | ||
144 | unsigned int in_scan:1; | ||
145 | /* frame is destined to interface currently processed | ||
146 | * (including multicast frames) */ | ||
147 | unsigned int ra_match:1; | ||
148 | } rx; | ||
149 | } u; | ||
150 | }; | ||
151 | |||
152 | /* Stored in sk_buff->cb */ | ||
153 | struct ieee80211_tx_packet_data { | ||
154 | int ifindex; | ||
155 | unsigned long jiffies; | ||
156 | unsigned int req_tx_status:1; | ||
157 | unsigned int do_not_encrypt:1; | ||
158 | unsigned int requeue:1; | ||
159 | unsigned int mgmt_iface:1; | ||
160 | unsigned int queue:4; | ||
161 | }; | ||
162 | |||
163 | struct ieee80211_tx_stored_packet { | ||
164 | struct ieee80211_tx_control control; | ||
165 | struct sk_buff *skb; | ||
166 | int num_extra_frag; | ||
167 | struct sk_buff **extra_frag; | ||
168 | int last_frag_rateidx; | ||
169 | int last_frag_hwrate; | ||
170 | struct ieee80211_rate *last_frag_rate; | ||
171 | unsigned int last_frag_rate_ctrl_probe:1; | ||
172 | }; | ||
173 | |||
174 | typedef ieee80211_txrx_result (*ieee80211_tx_handler) | ||
175 | (struct ieee80211_txrx_data *tx); | ||
176 | |||
177 | typedef ieee80211_txrx_result (*ieee80211_rx_handler) | ||
178 | (struct ieee80211_txrx_data *rx); | ||
179 | |||
180 | struct ieee80211_if_ap { | ||
181 | u8 *beacon_head, *beacon_tail; | ||
182 | int beacon_head_len, beacon_tail_len; | ||
183 | |||
184 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | ||
185 | size_t ssid_len; | ||
186 | u8 *generic_elem; | ||
187 | size_t generic_elem_len; | ||
188 | |||
189 | /* yes, this looks ugly, but guarantees that we can later use | ||
190 | * bitmap_empty :) | ||
191 | * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */ | ||
192 | u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; | ||
193 | atomic_t num_sta_ps; /* number of stations in PS mode */ | ||
194 | struct sk_buff_head ps_bc_buf; | ||
195 | int dtim_period, dtim_count; | ||
196 | int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ | ||
197 | int max_ratectrl_rateidx; /* max TX rateidx for rate control */ | ||
198 | int num_beacons; /* number of TXed beacon frames for this BSS */ | ||
199 | }; | ||
200 | |||
201 | struct ieee80211_if_wds { | ||
202 | u8 remote_addr[ETH_ALEN]; | ||
203 | struct sta_info *sta; | ||
204 | }; | ||
205 | |||
206 | struct ieee80211_if_vlan { | ||
207 | u8 id; | ||
208 | }; | ||
209 | |||
210 | struct ieee80211_if_sta { | ||
211 | enum { | ||
212 | IEEE80211_DISABLED, IEEE80211_AUTHENTICATE, | ||
213 | IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED, | ||
214 | IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED | ||
215 | } state; | ||
216 | struct timer_list timer; | ||
217 | struct work_struct work; | ||
218 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; | ||
219 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | ||
220 | size_t ssid_len; | ||
221 | u16 aid; | ||
222 | u16 ap_capab, capab; | ||
223 | u8 *extra_ie; /* to be added to the end of AssocReq */ | ||
224 | size_t extra_ie_len; | ||
225 | |||
226 | /* The last AssocReq/Resp IEs */ | ||
227 | u8 *assocreq_ies, *assocresp_ies; | ||
228 | size_t assocreq_ies_len, assocresp_ies_len; | ||
229 | |||
230 | int auth_tries, assoc_tries; | ||
231 | |||
232 | unsigned int ssid_set:1; | ||
233 | unsigned int bssid_set:1; | ||
234 | unsigned int prev_bssid_set:1; | ||
235 | unsigned int authenticated:1; | ||
236 | unsigned int associated:1; | ||
237 | unsigned int probereq_poll:1; | ||
238 | unsigned int use_protection:1; | ||
239 | unsigned int create_ibss:1; | ||
240 | unsigned int mixed_cell:1; | ||
241 | unsigned int wmm_enabled:1; | ||
242 | unsigned int auto_ssid_sel:1; | ||
243 | unsigned int auto_bssid_sel:1; | ||
244 | unsigned int auto_channel_sel:1; | ||
245 | #define IEEE80211_STA_REQ_SCAN 0 | ||
246 | #define IEEE80211_STA_REQ_AUTH 1 | ||
247 | #define IEEE80211_STA_REQ_RUN 2 | ||
248 | unsigned long request; | ||
249 | struct sk_buff_head skb_queue; | ||
250 | |||
251 | int key_mgmt; | ||
252 | unsigned long last_probe; | ||
253 | |||
254 | #define IEEE80211_AUTH_ALG_OPEN BIT(0) | ||
255 | #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1) | ||
256 | #define IEEE80211_AUTH_ALG_LEAP BIT(2) | ||
257 | unsigned int auth_algs; /* bitfield of allowed auth algs */ | ||
258 | int auth_alg; /* currently used IEEE 802.11 authentication algorithm */ | ||
259 | int auth_transaction; | ||
260 | |||
261 | unsigned long ibss_join_req; | ||
262 | struct sk_buff *probe_resp; /* ProbeResp template for IBSS */ | ||
263 | u32 supp_rates_bits; | ||
264 | |||
265 | int wmm_last_param_set; | ||
266 | }; | ||
267 | |||
268 | |||
269 | struct ieee80211_sub_if_data { | ||
270 | struct list_head list; | ||
271 | unsigned int type; | ||
272 | |||
273 | struct wireless_dev wdev; | ||
274 | |||
275 | struct net_device *dev; | ||
276 | struct ieee80211_local *local; | ||
277 | |||
278 | int mc_count; | ||
279 | unsigned int allmulti:1; | ||
280 | unsigned int promisc:1; | ||
281 | |||
282 | struct net_device_stats stats; | ||
283 | int drop_unencrypted; | ||
284 | int eapol; /* 0 = process EAPOL frames as normal data frames, | ||
285 | * 1 = send EAPOL frames through wlan#ap to hostapd | ||
286 | * (default) */ | ||
287 | int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized | ||
288 | * port */ | ||
289 | |||
290 | u16 sequence; | ||
291 | |||
292 | /* Fragment table for host-based reassembly */ | ||
293 | struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; | ||
294 | unsigned int fragment_next; | ||
295 | |||
296 | #define NUM_DEFAULT_KEYS 4 | ||
297 | struct ieee80211_key *keys[NUM_DEFAULT_KEYS]; | ||
298 | struct ieee80211_key *default_key; | ||
299 | |||
300 | struct ieee80211_if_ap *bss; /* BSS that this device belongs to */ | ||
301 | |||
302 | union { | ||
303 | struct ieee80211_if_ap ap; | ||
304 | struct ieee80211_if_wds wds; | ||
305 | struct ieee80211_if_vlan vlan; | ||
306 | struct ieee80211_if_sta sta; | ||
307 | } u; | ||
308 | int channel_use; | ||
309 | int channel_use_raw; | ||
310 | }; | ||
311 | |||
312 | #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev) | ||
313 | |||
314 | enum { | ||
315 | IEEE80211_RX_MSG = 1, | ||
316 | IEEE80211_TX_STATUS_MSG = 2, | ||
317 | }; | ||
318 | |||
319 | struct ieee80211_local { | ||
320 | /* embed the driver visible part. | ||
321 | * don't cast (use the static inlines below), but we keep | ||
322 | * it first anyway so they become a no-op */ | ||
323 | struct ieee80211_hw hw; | ||
324 | |||
325 | const struct ieee80211_ops *ops; | ||
326 | |||
327 | /* List of registered struct ieee80211_hw_mode */ | ||
328 | struct list_head modes_list; | ||
329 | |||
330 | struct net_device *mdev; /* wmaster# - "master" 802.11 device */ | ||
331 | struct net_device *apdev; /* wlan#ap - management frames (hostapd) */ | ||
332 | int open_count; | ||
333 | int monitors; | ||
334 | struct iw_statistics wstats; | ||
335 | u8 wstats_flags; | ||
336 | |||
337 | enum { | ||
338 | IEEE80211_DEV_UNINITIALIZED = 0, | ||
339 | IEEE80211_DEV_REGISTERED, | ||
340 | IEEE80211_DEV_UNREGISTERED, | ||
341 | } reg_state; | ||
342 | |||
343 | /* Tasklet and skb queue to process calls from IRQ mode. All frames | ||
344 | * added to skb_queue will be processed, but frames in | ||
345 | * skb_queue_unreliable may be dropped if the total length of these | ||
346 | * queues increases over the limit. */ | ||
347 | #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 | ||
348 | struct tasklet_struct tasklet; | ||
349 | struct sk_buff_head skb_queue; | ||
350 | struct sk_buff_head skb_queue_unreliable; | ||
351 | |||
352 | /* Station data structures */ | ||
353 | spinlock_t sta_lock; /* mutex for STA data structures */ | ||
354 | int num_sta; /* number of stations in sta_list */ | ||
355 | struct list_head sta_list; | ||
356 | struct list_head deleted_sta_list; | ||
357 | struct sta_info *sta_hash[STA_HASH_SIZE]; | ||
358 | struct timer_list sta_cleanup; | ||
359 | |||
360 | unsigned long state[NUM_TX_DATA_QUEUES]; | ||
361 | struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES]; | ||
362 | struct tasklet_struct tx_pending_tasklet; | ||
363 | |||
364 | int mc_count; /* total count of multicast entries in all interfaces */ | ||
365 | int iff_allmultis, iff_promiscs; | ||
366 | /* number of interfaces with corresponding IFF_ flags */ | ||
367 | |||
368 | struct rate_control_ref *rate_ctrl; | ||
369 | |||
370 | int next_mode; /* MODE_IEEE80211* | ||
371 | * The mode preference for next channel change. This is | ||
372 | * used to select .11g vs. .11b channels (or 4.9 GHz vs. | ||
373 | * .11a) when the channel number is not unique. */ | ||
374 | |||
375 | /* Supported and basic rate filters for different modes. These are | ||
376 | * pointers to -1 terminated lists and rates in 100 kbps units. */ | ||
377 | int *supp_rates[NUM_IEEE80211_MODES]; | ||
378 | int *basic_rates[NUM_IEEE80211_MODES]; | ||
379 | |||
380 | int rts_threshold; | ||
381 | int cts_protect_erp_frames; | ||
382 | int fragmentation_threshold; | ||
383 | int short_retry_limit; /* dot11ShortRetryLimit */ | ||
384 | int long_retry_limit; /* dot11LongRetryLimit */ | ||
385 | int short_preamble; /* use short preamble with IEEE 802.11b */ | ||
386 | |||
387 | struct crypto_blkcipher *wep_tx_tfm; | ||
388 | struct crypto_blkcipher *wep_rx_tfm; | ||
389 | u32 wep_iv; | ||
390 | int key_tx_rx_threshold; /* number of times any key can be used in TX | ||
391 | * or RX before generating a rekey | ||
392 | * notification; 0 = notification disabled. */ | ||
393 | |||
394 | int bridge_packets; /* bridge packets between associated stations and | ||
395 | * deliver multicast frames both back to wireless | ||
396 | * media and to the local net stack */ | ||
397 | |||
398 | ieee80211_rx_handler *rx_pre_handlers; | ||
399 | ieee80211_rx_handler *rx_handlers; | ||
400 | ieee80211_tx_handler *tx_handlers; | ||
401 | |||
402 | rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under | ||
403 | * sta_bss_lock or sta_lock. */ | ||
404 | struct list_head sub_if_list; | ||
405 | int sta_scanning; | ||
406 | int scan_channel_idx; | ||
407 | enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state; | ||
408 | unsigned long last_scan_completed; | ||
409 | struct delayed_work scan_work; | ||
410 | struct net_device *scan_dev; | ||
411 | struct ieee80211_channel *oper_channel, *scan_channel; | ||
412 | struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode; | ||
413 | u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; | ||
414 | size_t scan_ssid_len; | ||
415 | struct list_head sta_bss_list; | ||
416 | struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE]; | ||
417 | spinlock_t sta_bss_lock; | ||
418 | #define IEEE80211_SCAN_MATCH_SSID BIT(0) | ||
419 | #define IEEE80211_SCAN_WPA_ONLY BIT(1) | ||
420 | #define IEEE80211_SCAN_EXTRA_INFO BIT(2) | ||
421 | int scan_flags; | ||
422 | |||
423 | /* SNMP counters */ | ||
424 | /* dot11CountersTable */ | ||
425 | u32 dot11TransmittedFragmentCount; | ||
426 | u32 dot11MulticastTransmittedFrameCount; | ||
427 | u32 dot11FailedCount; | ||
428 | u32 dot11RetryCount; | ||
429 | u32 dot11MultipleRetryCount; | ||
430 | u32 dot11FrameDuplicateCount; | ||
431 | u32 dot11ReceivedFragmentCount; | ||
432 | u32 dot11MulticastReceivedFrameCount; | ||
433 | u32 dot11TransmittedFrameCount; | ||
434 | u32 dot11WEPUndecryptableCount; | ||
435 | |||
436 | #ifdef CONFIG_MAC80211_LEDS | ||
437 | int tx_led_counter, rx_led_counter; | ||
438 | struct led_trigger *tx_led, *rx_led; | ||
439 | char tx_led_name[32], rx_led_name[32]; | ||
440 | #endif | ||
441 | |||
442 | u32 channel_use; | ||
443 | u32 channel_use_raw; | ||
444 | u32 stat_time; | ||
445 | struct timer_list stat_timer; | ||
446 | |||
447 | enum { | ||
448 | STA_ANTENNA_SEL_AUTO = 0, | ||
449 | STA_ANTENNA_SEL_SW_CTRL = 1, | ||
450 | STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2 | ||
451 | } sta_antenna_sel; | ||
452 | |||
453 | int rate_ctrl_num_up, rate_ctrl_num_down; | ||
454 | |||
455 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | ||
456 | /* TX/RX handler statistics */ | ||
457 | unsigned int tx_handlers_drop; | ||
458 | unsigned int tx_handlers_queued; | ||
459 | unsigned int tx_handlers_drop_unencrypted; | ||
460 | unsigned int tx_handlers_drop_fragment; | ||
461 | unsigned int tx_handlers_drop_wep; | ||
462 | unsigned int tx_handlers_drop_not_assoc; | ||
463 | unsigned int tx_handlers_drop_unauth_port; | ||
464 | unsigned int rx_handlers_drop; | ||
465 | unsigned int rx_handlers_queued; | ||
466 | unsigned int rx_handlers_drop_nullfunc; | ||
467 | unsigned int rx_handlers_drop_defrag; | ||
468 | unsigned int rx_handlers_drop_short; | ||
469 | unsigned int rx_handlers_drop_passive_scan; | ||
470 | unsigned int tx_expand_skb_head; | ||
471 | unsigned int tx_expand_skb_head_cloned; | ||
472 | unsigned int rx_expand_skb_head; | ||
473 | unsigned int rx_expand_skb_head2; | ||
474 | unsigned int rx_handlers_fragments; | ||
475 | unsigned int tx_status_drop; | ||
476 | unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES]; | ||
477 | unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; | ||
478 | #define I802_DEBUG_INC(c) (c)++ | ||
479 | #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ | ||
480 | #define I802_DEBUG_INC(c) do { } while (0) | ||
481 | #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ | ||
482 | |||
483 | |||
484 | int default_wep_only; /* only default WEP keys are used with this | ||
485 | * interface; this is used to decide when hwaccel | ||
486 | * can be used with default keys */ | ||
487 | int total_ps_buffered; /* total number of all buffered unicast and | ||
488 | * multicast packets for power saving stations | ||
489 | */ | ||
490 | int allow_broadcast_always; /* whether to allow TX of broadcast frames | ||
491 | * even when there are no associated STAs | ||
492 | */ | ||
493 | |||
494 | int wifi_wme_noack_test; | ||
495 | unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ | ||
496 | |||
497 | unsigned int enabled_modes; /* bitfield of allowed modes; | ||
498 | * (1 << MODE_*) */ | ||
499 | unsigned int hw_modes; /* bitfield of supported hardware modes; | ||
500 | * (1 << MODE_*) */ | ||
501 | |||
502 | int user_space_mlme; | ||
503 | }; | ||
504 | |||
505 | static inline struct ieee80211_local *hw_to_local( | ||
506 | struct ieee80211_hw *hw) | ||
507 | { | ||
508 | return container_of(hw, struct ieee80211_local, hw); | ||
509 | } | ||
510 | |||
511 | static inline struct ieee80211_hw *local_to_hw( | ||
512 | struct ieee80211_local *local) | ||
513 | { | ||
514 | return &local->hw; | ||
515 | } | ||
516 | |||
517 | enum ieee80211_link_state_t { | ||
518 | IEEE80211_LINK_STATE_XOFF = 0, | ||
519 | IEEE80211_LINK_STATE_PENDING, | ||
520 | }; | ||
521 | |||
522 | struct sta_attribute { | ||
523 | struct attribute attr; | ||
524 | ssize_t (*show)(const struct sta_info *, char *buf); | ||
525 | ssize_t (*store)(struct sta_info *, const char *buf, size_t count); | ||
526 | }; | ||
527 | |||
528 | static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid) | ||
529 | { | ||
530 | /* | ||
531 | * This format has ben mandated by the IEEE specifications, | ||
532 | * so this line may not be changed to use the __set_bit() format. | ||
533 | */ | ||
534 | bss->tim[(aid)/8] |= 1<<((aid) % 8); | ||
535 | } | ||
536 | |||
537 | static inline void bss_tim_set(struct ieee80211_local *local, | ||
538 | struct ieee80211_if_ap *bss, int aid) | ||
539 | { | ||
540 | spin_lock_bh(&local->sta_lock); | ||
541 | __bss_tim_set(bss, aid); | ||
542 | spin_unlock_bh(&local->sta_lock); | ||
543 | } | ||
544 | |||
545 | static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid) | ||
546 | { | ||
547 | /* | ||
548 | * This format has ben mandated by the IEEE specifications, | ||
549 | * so this line may not be changed to use the __clear_bit() format. | ||
550 | */ | ||
551 | bss->tim[(aid)/8] &= !(1<<((aid) % 8)); | ||
552 | } | ||
553 | |||
554 | static inline void bss_tim_clear(struct ieee80211_local *local, | ||
555 | struct ieee80211_if_ap *bss, int aid) | ||
556 | { | ||
557 | spin_lock_bh(&local->sta_lock); | ||
558 | __bss_tim_clear(bss, aid); | ||
559 | spin_unlock_bh(&local->sta_lock); | ||
560 | } | ||
561 | |||
562 | /** | ||
563 | * ieee80211_is_erp_rate - Check if a rate is an ERP rate | ||
564 | * @phymode: The PHY-mode for this rate (MODE_IEEE80211...) | ||
565 | * @rate: Transmission rate to check, in 100 kbps | ||
566 | * | ||
567 | * Check if a given rate is an Extended Rate PHY (ERP) rate. | ||
568 | */ | ||
569 | static inline int ieee80211_is_erp_rate(int phymode, int rate) | ||
570 | { | ||
571 | if (phymode == MODE_IEEE80211G) { | ||
572 | if (rate != 10 && rate != 20 && | ||
573 | rate != 55 && rate != 110) | ||
574 | return 1; | ||
575 | } | ||
576 | return 0; | ||
577 | } | ||
578 | |||
579 | /* ieee80211.c */ | ||
580 | int ieee80211_hw_config(struct ieee80211_local *local); | ||
581 | int ieee80211_if_config(struct net_device *dev); | ||
582 | int ieee80211_if_config_beacon(struct net_device *dev); | ||
583 | struct ieee80211_key_conf * | ||
584 | ieee80211_key_data2conf(struct ieee80211_local *local, | ||
585 | const struct ieee80211_key *data); | ||
586 | struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, | ||
587 | int idx, size_t key_len, gfp_t flags); | ||
588 | void ieee80211_key_free(struct ieee80211_key *key); | ||
589 | void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb, | ||
590 | struct ieee80211_rx_status *status, u32 msg_type); | ||
591 | void ieee80211_prepare_rates(struct ieee80211_local *local, | ||
592 | struct ieee80211_hw_mode *mode); | ||
593 | void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx); | ||
594 | int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr); | ||
595 | void ieee80211_if_setup(struct net_device *dev); | ||
596 | void ieee80211_if_mgmt_setup(struct net_device *dev); | ||
597 | int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, | ||
598 | const char *name); | ||
599 | struct net_device_stats *ieee80211_dev_stats(struct net_device *dev); | ||
600 | |||
601 | /* ieee80211_ioctl.c */ | ||
602 | extern const struct iw_handler_def ieee80211_iw_handler_def; | ||
603 | |||
604 | void ieee80211_update_default_wep_only(struct ieee80211_local *local); | ||
605 | |||
606 | |||
607 | /* Least common multiple of the used rates (in 100 kbps). This is used to | ||
608 | * calculate rate_inv values for each rate so that only integers are needed. */ | ||
609 | #define CHAN_UTIL_RATE_LCM 95040 | ||
610 | /* 1 usec is 1/8 * (95040/10) = 1188 */ | ||
611 | #define CHAN_UTIL_PER_USEC 1188 | ||
612 | /* Amount of bits to shift the result right to scale the total utilization | ||
613 | * to values that will not wrap around 32-bit integers. */ | ||
614 | #define CHAN_UTIL_SHIFT 9 | ||
615 | /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1): | ||
616 | * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the | ||
617 | * raw value with about 23 should give utilization in 10th of a percentage | ||
618 | * (1/1000). However, utilization is only estimated and not all intervals | ||
619 | * between frames etc. are calculated. 18 seems to give numbers that are closer | ||
620 | * to the real maximum. */ | ||
621 | #define CHAN_UTIL_PER_10MS 18 | ||
622 | #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC) | ||
623 | #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC) | ||
624 | |||
625 | |||
626 | /* ieee80211_ioctl.c */ | ||
627 | int ieee80211_set_compression(struct ieee80211_local *local, | ||
628 | struct net_device *dev, struct sta_info *sta); | ||
629 | int ieee80211_init_client(struct net_device *dev); | ||
630 | int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq); | ||
631 | /* ieee80211_sta.c */ | ||
632 | void ieee80211_sta_timer(unsigned long data); | ||
633 | void ieee80211_sta_work(struct work_struct *work); | ||
634 | void ieee80211_sta_scan_work(struct work_struct *work); | ||
635 | void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, | ||
636 | struct ieee80211_rx_status *rx_status); | ||
637 | int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len); | ||
638 | int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len); | ||
639 | int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid); | ||
640 | int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len); | ||
641 | void ieee80211_sta_req_auth(struct net_device *dev, | ||
642 | struct ieee80211_if_sta *ifsta); | ||
643 | int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len); | ||
644 | void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb, | ||
645 | struct ieee80211_rx_status *rx_status); | ||
646 | void ieee80211_rx_bss_list_init(struct net_device *dev); | ||
647 | void ieee80211_rx_bss_list_deinit(struct net_device *dev); | ||
648 | int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len); | ||
649 | struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev, | ||
650 | struct sk_buff *skb, u8 *bssid, | ||
651 | u8 *addr); | ||
652 | int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason); | ||
653 | int ieee80211_sta_disassociate(struct net_device *dev, u16 reason); | ||
654 | |||
655 | /* ieee80211_iface.c */ | ||
656 | int ieee80211_if_add(struct net_device *dev, const char *name, | ||
657 | struct net_device **new_dev, int type); | ||
658 | void ieee80211_if_set_type(struct net_device *dev, int type); | ||
659 | void ieee80211_if_reinit(struct net_device *dev); | ||
660 | void __ieee80211_if_del(struct ieee80211_local *local, | ||
661 | struct ieee80211_sub_if_data *sdata); | ||
662 | int ieee80211_if_remove(struct net_device *dev, const char *name, int id); | ||
663 | void ieee80211_if_free(struct net_device *dev); | ||
664 | void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata); | ||
665 | int ieee80211_if_add_mgmt(struct ieee80211_local *local); | ||
666 | void ieee80211_if_del_mgmt(struct ieee80211_local *local); | ||
667 | |||
668 | /* for wiphy privid */ | ||
669 | extern void *mac80211_wiphy_privid; | ||
670 | |||
671 | #endif /* IEEE80211_I_H */ | ||