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1 | /* | |
2 | * Copyright 2002-2005, Instant802 Networks, Inc. | |
3 | * Copyright 2005, Devicescape Software, Inc. | |
4 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
5 | * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #ifndef IEEE80211_I_H | |
13 | #define IEEE80211_I_H | |
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/device.h> | |
17 | #include <linux/if_ether.h> | |
18 | #include <linux/interrupt.h> | |
19 | #include <linux/list.h> | |
20 | #include <linux/netdevice.h> | |
21 | #include <linux/skbuff.h> | |
22 | #include <linux/workqueue.h> | |
23 | #include <linux/types.h> | |
24 | #include <linux/spinlock.h> | |
25 | #include <linux/etherdevice.h> | |
26 | #include <net/ieee80211_radiotap.h> | |
27 | #include <net/cfg80211.h> | |
28 | #include <net/mac80211.h> | |
29 | #include "key.h" | |
30 | #include "sta_info.h" | |
31 | ||
32 | struct ieee80211_local; | |
33 | ||
34 | /* Maximum number of broadcast/multicast frames to buffer when some of the | |
35 | * associated stations are using power saving. */ | |
36 | #define AP_MAX_BC_BUFFER 128 | |
37 | ||
38 | /* Maximum number of frames buffered to all STAs, including multicast frames. | |
39 | * Note: increasing this limit increases the potential memory requirement. Each | |
40 | * frame can be up to about 2 kB long. */ | |
41 | #define TOTAL_MAX_TX_BUFFER 512 | |
42 | ||
43 | /* Required encryption head and tailroom */ | |
44 | #define IEEE80211_ENCRYPT_HEADROOM 8 | |
45 | #define IEEE80211_ENCRYPT_TAILROOM 18 | |
46 | ||
47 | /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent | |
48 | * reception of at least three fragmented frames. This limit can be increased | |
49 | * by changing this define, at the cost of slower frame reassembly and | |
50 | * increased memory use (about 2 kB of RAM per entry). */ | |
51 | #define IEEE80211_FRAGMENT_MAX 4 | |
52 | ||
53 | /* | |
54 | * Time after which we ignore scan results and no longer report/use | |
55 | * them in any way. | |
56 | */ | |
57 | #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ) | |
58 | ||
59 | #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024)) | |
60 | ||
61 | struct 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 | ||
73 | struct ieee80211_bss { | |
74 | /* Yes, this is a hack */ | |
75 | struct cfg80211_bss cbss; | |
76 | ||
77 | /* don't want to look up all the time */ | |
78 | size_t ssid_len; | |
79 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | |
80 | ||
81 | u8 dtim_period; | |
82 | ||
83 | bool wmm_used; | |
84 | ||
85 | unsigned long last_probe_resp; | |
86 | ||
87 | #ifdef CONFIG_MAC80211_MESH | |
88 | u8 *mesh_id; | |
89 | size_t mesh_id_len; | |
90 | u8 *mesh_cfg; | |
91 | #endif | |
92 | ||
93 | #define IEEE80211_MAX_SUPP_RATES 32 | |
94 | u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; | |
95 | size_t supp_rates_len; | |
96 | ||
97 | /* | |
98 | * During assocation, we save an ERP value from a probe response so | |
99 | * that we can feed ERP info to the driver when handling the | |
100 | * association completes. these fields probably won't be up-to-date | |
101 | * otherwise, you probably don't want to use them. | |
102 | */ | |
103 | bool has_erp_value; | |
104 | u8 erp_value; | |
105 | }; | |
106 | ||
107 | static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss) | |
108 | { | |
109 | #ifdef CONFIG_MAC80211_MESH | |
110 | return bss->mesh_cfg; | |
111 | #endif | |
112 | return NULL; | |
113 | } | |
114 | ||
115 | static inline u8 *bss_mesh_id(struct ieee80211_bss *bss) | |
116 | { | |
117 | #ifdef CONFIG_MAC80211_MESH | |
118 | return bss->mesh_id; | |
119 | #endif | |
120 | return NULL; | |
121 | } | |
122 | ||
123 | static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss) | |
124 | { | |
125 | #ifdef CONFIG_MAC80211_MESH | |
126 | return bss->mesh_id_len; | |
127 | #endif | |
128 | return 0; | |
129 | } | |
130 | ||
131 | ||
132 | typedef unsigned __bitwise__ ieee80211_tx_result; | |
133 | #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) | |
134 | #define TX_DROP ((__force ieee80211_tx_result) 1u) | |
135 | #define TX_QUEUED ((__force ieee80211_tx_result) 2u) | |
136 | ||
137 | #define IEEE80211_TX_FRAGMENTED BIT(0) | |
138 | #define IEEE80211_TX_UNICAST BIT(1) | |
139 | #define IEEE80211_TX_PS_BUFFERED BIT(2) | |
140 | ||
141 | struct ieee80211_tx_data { | |
142 | struct sk_buff *skb; | |
143 | struct ieee80211_local *local; | |
144 | struct ieee80211_sub_if_data *sdata; | |
145 | struct sta_info *sta; | |
146 | struct ieee80211_key *key; | |
147 | ||
148 | struct ieee80211_channel *channel; | |
149 | ||
150 | u16 ethertype; | |
151 | unsigned int flags; | |
152 | }; | |
153 | ||
154 | ||
155 | typedef unsigned __bitwise__ ieee80211_rx_result; | |
156 | #define RX_CONTINUE ((__force ieee80211_rx_result) 0u) | |
157 | #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) | |
158 | #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) | |
159 | #define RX_QUEUED ((__force ieee80211_rx_result) 3u) | |
160 | ||
161 | #define IEEE80211_RX_IN_SCAN BIT(0) | |
162 | /* frame is destined to interface currently processed (incl. multicast frames) */ | |
163 | #define IEEE80211_RX_RA_MATCH BIT(1) | |
164 | #define IEEE80211_RX_AMSDU BIT(2) | |
165 | #define IEEE80211_RX_FRAGMENTED BIT(3) | |
166 | /* only add flags here that do not change with subframes of an aMPDU */ | |
167 | ||
168 | struct ieee80211_rx_data { | |
169 | struct sk_buff *skb; | |
170 | struct ieee80211_local *local; | |
171 | struct ieee80211_sub_if_data *sdata; | |
172 | struct sta_info *sta; | |
173 | struct ieee80211_key *key; | |
174 | ||
175 | unsigned int flags; | |
176 | int queue; | |
177 | u32 tkip_iv32; | |
178 | u16 tkip_iv16; | |
179 | }; | |
180 | ||
181 | struct beacon_data { | |
182 | u8 *head, *tail; | |
183 | int head_len, tail_len; | |
184 | int dtim_period; | |
185 | }; | |
186 | ||
187 | struct ieee80211_if_ap { | |
188 | struct beacon_data *beacon; | |
189 | ||
190 | struct list_head vlans; | |
191 | ||
192 | /* yes, this looks ugly, but guarantees that we can later use | |
193 | * bitmap_empty :) | |
194 | * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ | |
195 | u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; | |
196 | struct sk_buff_head ps_bc_buf; | |
197 | atomic_t num_sta_ps; /* number of stations in PS mode */ | |
198 | int dtim_count; | |
199 | }; | |
200 | ||
201 | struct ieee80211_if_wds { | |
202 | struct sta_info *sta; | |
203 | u8 remote_addr[ETH_ALEN]; | |
204 | }; | |
205 | ||
206 | struct ieee80211_if_vlan { | |
207 | struct list_head list; | |
208 | ||
209 | /* used for all tx if the VLAN is configured to 4-addr mode */ | |
210 | struct sta_info *sta; | |
211 | }; | |
212 | ||
213 | struct mesh_stats { | |
214 | __u32 fwded_mcast; /* Mesh forwarded multicast frames */ | |
215 | __u32 fwded_unicast; /* Mesh forwarded unicast frames */ | |
216 | __u32 fwded_frames; /* Mesh total forwarded frames */ | |
217 | __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ | |
218 | __u32 dropped_frames_no_route; /* Not transmitted, no route found */ | |
219 | atomic_t estab_plinks; | |
220 | }; | |
221 | ||
222 | #define PREQ_Q_F_START 0x1 | |
223 | #define PREQ_Q_F_REFRESH 0x2 | |
224 | struct mesh_preq_queue { | |
225 | struct list_head list; | |
226 | u8 dst[ETH_ALEN]; | |
227 | u8 flags; | |
228 | }; | |
229 | ||
230 | enum ieee80211_work_type { | |
231 | IEEE80211_WORK_AUTH_PROBE, | |
232 | IEEE80211_WORK_AUTH, | |
233 | IEEE80211_WORK_ASSOC, | |
234 | }; | |
235 | ||
236 | struct ieee80211_work { | |
237 | struct list_head list; | |
238 | ||
239 | struct ieee80211_channel *chan; | |
240 | /* XXX: chan type? -- right now not really needed */ | |
241 | unsigned long timeout; | |
242 | enum ieee80211_work_type type; | |
243 | ||
244 | union { | |
245 | struct { | |
246 | int tries; | |
247 | u16 algorithm, transaction; | |
248 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | |
249 | u8 ssid_len; | |
250 | u8 bssid[ETH_ALEN]; | |
251 | u8 key[WLAN_KEY_LEN_WEP104]; | |
252 | u8 key_len, key_idx; | |
253 | bool privacy; | |
254 | } auth; | |
255 | struct { | |
256 | struct ieee80211_bss *bss; | |
257 | const u8 *supp_rates; | |
258 | const u8 *ht_information_ie; | |
259 | int tries; | |
260 | u16 capability; | |
261 | u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; | |
262 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | |
263 | u8 ssid_len; | |
264 | u8 supp_rates_len; | |
265 | bool wmm_used; | |
266 | } assoc; | |
267 | }; | |
268 | ||
269 | int ie_len; | |
270 | /* must be last */ | |
271 | u8 ie[0]; | |
272 | }; | |
273 | ||
274 | /* flags used in struct ieee80211_if_managed.flags */ | |
275 | enum ieee80211_sta_flags { | |
276 | IEEE80211_STA_BEACON_POLL = BIT(0), | |
277 | IEEE80211_STA_CONNECTION_POLL = BIT(1), | |
278 | IEEE80211_STA_CONTROL_PORT = BIT(2), | |
279 | IEEE80211_STA_WMM_ENABLED = BIT(3), | |
280 | IEEE80211_STA_DISABLE_11N = BIT(4), | |
281 | IEEE80211_STA_CSA_RECEIVED = BIT(5), | |
282 | IEEE80211_STA_MFP_ENABLED = BIT(6), | |
283 | }; | |
284 | ||
285 | /* flags for MLME request */ | |
286 | enum ieee80211_sta_request { | |
287 | IEEE80211_STA_REQ_SCAN, | |
288 | }; | |
289 | ||
290 | struct ieee80211_if_managed { | |
291 | struct timer_list timer; | |
292 | struct timer_list conn_mon_timer; | |
293 | struct timer_list bcn_mon_timer; | |
294 | struct timer_list chswitch_timer; | |
295 | struct work_struct work; | |
296 | struct work_struct monitor_work; | |
297 | struct work_struct chswitch_work; | |
298 | struct work_struct beacon_loss_work; | |
299 | ||
300 | unsigned long probe_timeout; | |
301 | int probe_send_count; | |
302 | ||
303 | struct mutex mtx; | |
304 | struct ieee80211_bss *associated; | |
305 | struct list_head work_list; | |
306 | ||
307 | u8 bssid[ETH_ALEN]; | |
308 | ||
309 | u16 aid; | |
310 | u16 capab; | |
311 | ||
312 | struct sk_buff_head skb_queue; | |
313 | ||
314 | unsigned long timers_running; /* used for quiesce/restart */ | |
315 | bool powersave; /* powersave requested for this iface */ | |
316 | enum ieee80211_smps_mode req_smps, /* requested smps mode */ | |
317 | ap_smps; /* smps mode AP thinks we're in */ | |
318 | ||
319 | unsigned long request; | |
320 | ||
321 | unsigned int flags; | |
322 | ||
323 | u32 beacon_crc; | |
324 | ||
325 | enum { | |
326 | IEEE80211_MFP_DISABLED, | |
327 | IEEE80211_MFP_OPTIONAL, | |
328 | IEEE80211_MFP_REQUIRED | |
329 | } mfp; /* management frame protection */ | |
330 | ||
331 | int wmm_last_param_set; | |
332 | ||
333 | u8 use_4addr; | |
334 | }; | |
335 | ||
336 | enum ieee80211_ibss_request { | |
337 | IEEE80211_IBSS_REQ_RUN = 0, | |
338 | }; | |
339 | ||
340 | struct ieee80211_if_ibss { | |
341 | struct timer_list timer; | |
342 | struct work_struct work; | |
343 | ||
344 | struct sk_buff_head skb_queue; | |
345 | ||
346 | unsigned long request; | |
347 | unsigned long last_scan_completed; | |
348 | ||
349 | bool timer_running; | |
350 | ||
351 | bool fixed_bssid; | |
352 | bool fixed_channel; | |
353 | bool privacy; | |
354 | ||
355 | u8 bssid[ETH_ALEN]; | |
356 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | |
357 | u8 ssid_len, ie_len; | |
358 | u8 *ie; | |
359 | struct ieee80211_channel *channel; | |
360 | ||
361 | unsigned long ibss_join_req; | |
362 | /* probe response/beacon for IBSS */ | |
363 | struct sk_buff *presp, *skb; | |
364 | ||
365 | enum { | |
366 | IEEE80211_IBSS_MLME_SEARCH, | |
367 | IEEE80211_IBSS_MLME_JOINED, | |
368 | } state; | |
369 | }; | |
370 | ||
371 | struct ieee80211_if_mesh { | |
372 | struct work_struct work; | |
373 | struct timer_list housekeeping_timer; | |
374 | struct timer_list mesh_path_timer; | |
375 | struct timer_list mesh_path_root_timer; | |
376 | struct sk_buff_head skb_queue; | |
377 | ||
378 | unsigned long timers_running; | |
379 | ||
380 | unsigned long wrkq_flags; | |
381 | ||
382 | u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; | |
383 | size_t mesh_id_len; | |
384 | /* Active Path Selection Protocol Identifier */ | |
385 | u8 mesh_pp_id; | |
386 | /* Active Path Selection Metric Identifier */ | |
387 | u8 mesh_pm_id; | |
388 | /* Congestion Control Mode Identifier */ | |
389 | u8 mesh_cc_id; | |
390 | /* Synchronization Protocol Identifier */ | |
391 | u8 mesh_sp_id; | |
392 | /* Authentication Protocol Identifier */ | |
393 | u8 mesh_auth_id; | |
394 | /* Local mesh Sequence Number */ | |
395 | u32 sn; | |
396 | /* Last used PREQ ID */ | |
397 | u32 preq_id; | |
398 | atomic_t mpaths; | |
399 | /* Timestamp of last SN update */ | |
400 | unsigned long last_sn_update; | |
401 | /* Timestamp of last SN sent */ | |
402 | unsigned long last_preq; | |
403 | struct mesh_rmc *rmc; | |
404 | spinlock_t mesh_preq_queue_lock; | |
405 | struct mesh_preq_queue preq_queue; | |
406 | int preq_queue_len; | |
407 | struct mesh_stats mshstats; | |
408 | struct mesh_config mshcfg; | |
409 | u32 mesh_seqnum; | |
410 | bool accepting_plinks; | |
411 | }; | |
412 | ||
413 | #ifdef CONFIG_MAC80211_MESH | |
414 | #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ | |
415 | do { (msh)->mshstats.name++; } while (0) | |
416 | #else | |
417 | #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ | |
418 | do { } while (0) | |
419 | #endif | |
420 | ||
421 | /** | |
422 | * enum ieee80211_sub_if_data_flags - virtual interface flags | |
423 | * | |
424 | * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets | |
425 | * @IEEE80211_SDATA_PROMISC: interface is promisc | |
426 | * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode | |
427 | * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between | |
428 | * associated stations and deliver multicast frames both | |
429 | * back to wireless media and to the local net stack. | |
430 | */ | |
431 | enum ieee80211_sub_if_data_flags { | |
432 | IEEE80211_SDATA_ALLMULTI = BIT(0), | |
433 | IEEE80211_SDATA_PROMISC = BIT(1), | |
434 | IEEE80211_SDATA_OPERATING_GMODE = BIT(2), | |
435 | IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), | |
436 | }; | |
437 | ||
438 | struct ieee80211_sub_if_data { | |
439 | struct list_head list; | |
440 | ||
441 | struct wireless_dev wdev; | |
442 | ||
443 | /* keys */ | |
444 | struct list_head key_list; | |
445 | ||
446 | struct net_device *dev; | |
447 | struct ieee80211_local *local; | |
448 | ||
449 | unsigned int flags; | |
450 | ||
451 | int drop_unencrypted; | |
452 | ||
453 | char name[IFNAMSIZ]; | |
454 | ||
455 | /* | |
456 | * keep track of whether the HT opmode (stored in | |
457 | * vif.bss_info.ht_operation_mode) is valid. | |
458 | */ | |
459 | bool ht_opmode_valid; | |
460 | ||
461 | /* Fragment table for host-based reassembly */ | |
462 | struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; | |
463 | unsigned int fragment_next; | |
464 | ||
465 | #define NUM_DEFAULT_KEYS 4 | |
466 | #define NUM_DEFAULT_MGMT_KEYS 2 | |
467 | struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; | |
468 | struct ieee80211_key *default_key; | |
469 | struct ieee80211_key *default_mgmt_key; | |
470 | ||
471 | u16 sequence_number; | |
472 | ||
473 | /* | |
474 | * AP this belongs to: self in AP mode and | |
475 | * corresponding AP in VLAN mode, NULL for | |
476 | * all others (might be needed later in IBSS) | |
477 | */ | |
478 | struct ieee80211_if_ap *bss; | |
479 | ||
480 | int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ | |
481 | int max_ratectrl_rateidx; /* max TX rateidx for rate control */ | |
482 | ||
483 | union { | |
484 | struct ieee80211_if_ap ap; | |
485 | struct ieee80211_if_wds wds; | |
486 | struct ieee80211_if_vlan vlan; | |
487 | struct ieee80211_if_managed mgd; | |
488 | struct ieee80211_if_ibss ibss; | |
489 | #ifdef CONFIG_MAC80211_MESH | |
490 | struct ieee80211_if_mesh mesh; | |
491 | #endif | |
492 | u32 mntr_flags; | |
493 | } u; | |
494 | ||
495 | #ifdef CONFIG_MAC80211_DEBUGFS | |
496 | struct { | |
497 | struct dentry *dir; | |
498 | struct dentry *default_key; | |
499 | struct dentry *default_mgmt_key; | |
500 | } debugfs; | |
501 | #endif | |
502 | /* must be last, dynamically sized area in this! */ | |
503 | struct ieee80211_vif vif; | |
504 | }; | |
505 | ||
506 | static inline | |
507 | struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) | |
508 | { | |
509 | return container_of(p, struct ieee80211_sub_if_data, vif); | |
510 | } | |
511 | ||
512 | static inline void | |
513 | ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata, | |
514 | u8 mesh_id_len, u8 *mesh_id) | |
515 | { | |
516 | #ifdef CONFIG_MAC80211_MESH | |
517 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; | |
518 | ifmsh->mesh_id_len = mesh_id_len; | |
519 | memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len); | |
520 | #else | |
521 | WARN_ON(1); | |
522 | #endif | |
523 | } | |
524 | ||
525 | enum { | |
526 | IEEE80211_RX_MSG = 1, | |
527 | IEEE80211_TX_STATUS_MSG = 2, | |
528 | IEEE80211_DELBA_MSG = 3, | |
529 | IEEE80211_ADDBA_MSG = 4, | |
530 | }; | |
531 | ||
532 | enum queue_stop_reason { | |
533 | IEEE80211_QUEUE_STOP_REASON_DRIVER, | |
534 | IEEE80211_QUEUE_STOP_REASON_PS, | |
535 | IEEE80211_QUEUE_STOP_REASON_CSA, | |
536 | IEEE80211_QUEUE_STOP_REASON_AGGREGATION, | |
537 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, | |
538 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, | |
539 | }; | |
540 | ||
541 | /** | |
542 | * mac80211 scan flags - currently active scan mode | |
543 | * | |
544 | * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as | |
545 | * well be on the operating channel | |
546 | * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to | |
547 | * determine if we are on the operating channel or not | |
548 | * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning, | |
549 | * gets only set in conjunction with SCAN_SW_SCANNING | |
550 | */ | |
551 | enum { | |
552 | SCAN_SW_SCANNING, | |
553 | SCAN_HW_SCANNING, | |
554 | SCAN_OFF_CHANNEL, | |
555 | }; | |
556 | ||
557 | /** | |
558 | * enum mac80211_scan_state - scan state machine states | |
559 | * | |
560 | * @SCAN_DECISION: Main entry point to the scan state machine, this state | |
561 | * determines if we should keep on scanning or switch back to the | |
562 | * operating channel | |
563 | * @SCAN_SET_CHANNEL: Set the next channel to be scanned | |
564 | * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses | |
565 | * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP | |
566 | * about us leaving the channel and stop all associated STA interfaces | |
567 | * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the | |
568 | * AP about us being back and restart all associated STA interfaces | |
569 | */ | |
570 | enum mac80211_scan_state { | |
571 | SCAN_DECISION, | |
572 | SCAN_SET_CHANNEL, | |
573 | SCAN_SEND_PROBE, | |
574 | SCAN_LEAVE_OPER_CHANNEL, | |
575 | SCAN_ENTER_OPER_CHANNEL, | |
576 | }; | |
577 | ||
578 | struct ieee80211_local { | |
579 | /* embed the driver visible part. | |
580 | * don't cast (use the static inlines below), but we keep | |
581 | * it first anyway so they become a no-op */ | |
582 | struct ieee80211_hw hw; | |
583 | ||
584 | const struct ieee80211_ops *ops; | |
585 | ||
586 | /* | |
587 | * private workqueue to mac80211. mac80211 makes this accessible | |
588 | * via ieee80211_queue_work() | |
589 | */ | |
590 | struct workqueue_struct *workqueue; | |
591 | ||
592 | unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; | |
593 | /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ | |
594 | spinlock_t queue_stop_reason_lock; | |
595 | ||
596 | int open_count; | |
597 | int monitors, cooked_mntrs; | |
598 | /* number of interfaces with corresponding FIF_ flags */ | |
599 | int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll; | |
600 | unsigned int filter_flags; /* FIF_* */ | |
601 | ||
602 | /* protects the aggregated multicast list and filter calls */ | |
603 | spinlock_t filter_lock; | |
604 | ||
605 | /* used for uploading changed mc list */ | |
606 | struct work_struct reconfig_filter; | |
607 | ||
608 | /* used to reconfigure hardware SM PS */ | |
609 | struct work_struct recalc_smps; | |
610 | ||
611 | /* aggregated multicast list */ | |
612 | struct dev_addr_list *mc_list; | |
613 | int mc_count; | |
614 | ||
615 | bool tim_in_locked_section; /* see ieee80211_beacon_get() */ | |
616 | ||
617 | /* | |
618 | * suspended is true if we finished all the suspend _and_ we have | |
619 | * not yet come up from resume. This is to be used by mac80211 | |
620 | * to ensure driver sanity during suspend and mac80211's own | |
621 | * sanity. It can eventually be used for WoW as well. | |
622 | */ | |
623 | bool suspended; | |
624 | ||
625 | /* | |
626 | * Resuming is true while suspended, but when we're reprogramming the | |
627 | * hardware -- at that time it's allowed to use ieee80211_queue_work() | |
628 | * again even though some other parts of the stack are still suspended | |
629 | * and we still drop received frames to avoid waking the stack. | |
630 | */ | |
631 | bool resuming; | |
632 | ||
633 | /* | |
634 | * quiescing is true during the suspend process _only_ to | |
635 | * ease timer cancelling etc. | |
636 | */ | |
637 | bool quiescing; | |
638 | ||
639 | /* device is started */ | |
640 | bool started; | |
641 | ||
642 | int tx_headroom; /* required headroom for hardware/radiotap */ | |
643 | ||
644 | /* Tasklet and skb queue to process calls from IRQ mode. All frames | |
645 | * added to skb_queue will be processed, but frames in | |
646 | * skb_queue_unreliable may be dropped if the total length of these | |
647 | * queues increases over the limit. */ | |
648 | #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 | |
649 | struct tasklet_struct tasklet; | |
650 | struct sk_buff_head skb_queue; | |
651 | struct sk_buff_head skb_queue_unreliable; | |
652 | ||
653 | /* Station data */ | |
654 | /* | |
655 | * The lock only protects the list, hash, timer and counter | |
656 | * against manipulation, reads are done in RCU. Additionally, | |
657 | * the lock protects each BSS's TIM bitmap. | |
658 | */ | |
659 | spinlock_t sta_lock; | |
660 | unsigned long num_sta; | |
661 | struct list_head sta_list; | |
662 | struct sta_info *sta_hash[STA_HASH_SIZE]; | |
663 | struct timer_list sta_cleanup; | |
664 | int sta_generation; | |
665 | ||
666 | struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; | |
667 | struct tasklet_struct tx_pending_tasklet; | |
668 | ||
669 | /* | |
670 | * This lock is used to prevent concurrent A-MPDU | |
671 | * session start/stop processing, this thus also | |
672 | * synchronises the ->ampdu_action() callback to | |
673 | * drivers and limits it to one at a time. | |
674 | */ | |
675 | spinlock_t ampdu_lock; | |
676 | ||
677 | /* number of interfaces with corresponding IFF_ flags */ | |
678 | atomic_t iff_allmultis, iff_promiscs; | |
679 | ||
680 | struct rate_control_ref *rate_ctrl; | |
681 | ||
682 | struct crypto_blkcipher *wep_tx_tfm; | |
683 | struct crypto_blkcipher *wep_rx_tfm; | |
684 | u32 wep_iv; | |
685 | ||
686 | /* see iface.c */ | |
687 | struct list_head interfaces; | |
688 | struct mutex iflist_mtx; | |
689 | ||
690 | /* | |
691 | * Key lock, protects sdata's key_list and sta_info's | |
692 | * key pointers (write access, they're RCU.) | |
693 | */ | |
694 | spinlock_t key_lock; | |
695 | ||
696 | ||
697 | /* Scanning and BSS list */ | |
698 | struct mutex scan_mtx; | |
699 | unsigned long scanning; | |
700 | struct cfg80211_ssid scan_ssid; | |
701 | struct cfg80211_scan_request *int_scan_req; | |
702 | struct cfg80211_scan_request *scan_req, *hw_scan_req; | |
703 | struct ieee80211_channel *scan_channel; | |
704 | enum ieee80211_band hw_scan_band; | |
705 | int scan_channel_idx; | |
706 | int scan_ies_len; | |
707 | ||
708 | enum mac80211_scan_state next_scan_state; | |
709 | struct delayed_work scan_work; | |
710 | struct ieee80211_sub_if_data *scan_sdata; | |
711 | enum nl80211_channel_type oper_channel_type; | |
712 | struct ieee80211_channel *oper_channel, *csa_channel; | |
713 | ||
714 | /* SNMP counters */ | |
715 | /* dot11CountersTable */ | |
716 | u32 dot11TransmittedFragmentCount; | |
717 | u32 dot11MulticastTransmittedFrameCount; | |
718 | u32 dot11FailedCount; | |
719 | u32 dot11RetryCount; | |
720 | u32 dot11MultipleRetryCount; | |
721 | u32 dot11FrameDuplicateCount; | |
722 | u32 dot11ReceivedFragmentCount; | |
723 | u32 dot11MulticastReceivedFrameCount; | |
724 | u32 dot11TransmittedFrameCount; | |
725 | ||
726 | #ifdef CONFIG_MAC80211_LEDS | |
727 | int tx_led_counter, rx_led_counter; | |
728 | struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led; | |
729 | char tx_led_name[32], rx_led_name[32], | |
730 | assoc_led_name[32], radio_led_name[32]; | |
731 | #endif | |
732 | ||
733 | #ifdef CONFIG_MAC80211_DEBUGFS | |
734 | struct work_struct sta_debugfs_add; | |
735 | #endif | |
736 | ||
737 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
738 | /* TX/RX handler statistics */ | |
739 | unsigned int tx_handlers_drop; | |
740 | unsigned int tx_handlers_queued; | |
741 | unsigned int tx_handlers_drop_unencrypted; | |
742 | unsigned int tx_handlers_drop_fragment; | |
743 | unsigned int tx_handlers_drop_wep; | |
744 | unsigned int tx_handlers_drop_not_assoc; | |
745 | unsigned int tx_handlers_drop_unauth_port; | |
746 | unsigned int rx_handlers_drop; | |
747 | unsigned int rx_handlers_queued; | |
748 | unsigned int rx_handlers_drop_nullfunc; | |
749 | unsigned int rx_handlers_drop_defrag; | |
750 | unsigned int rx_handlers_drop_short; | |
751 | unsigned int rx_handlers_drop_passive_scan; | |
752 | unsigned int tx_expand_skb_head; | |
753 | unsigned int tx_expand_skb_head_cloned; | |
754 | unsigned int rx_expand_skb_head; | |
755 | unsigned int rx_expand_skb_head2; | |
756 | unsigned int rx_handlers_fragments; | |
757 | unsigned int tx_status_drop; | |
758 | #define I802_DEBUG_INC(c) (c)++ | |
759 | #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ | |
760 | #define I802_DEBUG_INC(c) do { } while (0) | |
761 | #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ | |
762 | ||
763 | ||
764 | int total_ps_buffered; /* total number of all buffered unicast and | |
765 | * multicast packets for power saving stations | |
766 | */ | |
767 | int wifi_wme_noack_test; | |
768 | unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ | |
769 | ||
770 | bool pspolling; | |
771 | bool scan_ps_enabled; | |
772 | /* | |
773 | * PS can only be enabled when we have exactly one managed | |
774 | * interface (and monitors) in PS, this then points there. | |
775 | */ | |
776 | struct ieee80211_sub_if_data *ps_sdata; | |
777 | struct work_struct dynamic_ps_enable_work; | |
778 | struct work_struct dynamic_ps_disable_work; | |
779 | struct timer_list dynamic_ps_timer; | |
780 | struct notifier_block network_latency_notifier; | |
781 | ||
782 | int user_power_level; /* in dBm */ | |
783 | int power_constr_level; /* in dBm */ | |
784 | ||
785 | enum ieee80211_smps_mode smps_mode; | |
786 | ||
787 | struct work_struct restart_work; | |
788 | ||
789 | #ifdef CONFIG_MAC80211_DEBUGFS | |
790 | struct local_debugfsdentries { | |
791 | struct dentry *rcdir; | |
792 | struct dentry *stations; | |
793 | struct dentry *keys; | |
794 | } debugfs; | |
795 | #endif | |
796 | }; | |
797 | ||
798 | static inline struct ieee80211_sub_if_data * | |
799 | IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) | |
800 | { | |
801 | return netdev_priv(dev); | |
802 | } | |
803 | ||
804 | /* this struct represents 802.11n's RA/TID combination along with our vif */ | |
805 | struct ieee80211_ra_tid { | |
806 | struct ieee80211_vif *vif; | |
807 | u8 ra[ETH_ALEN]; | |
808 | u16 tid; | |
809 | }; | |
810 | ||
811 | /* Parsed Information Elements */ | |
812 | struct ieee802_11_elems { | |
813 | u8 *ie_start; | |
814 | size_t total_len; | |
815 | ||
816 | /* pointers to IEs */ | |
817 | u8 *ssid; | |
818 | u8 *supp_rates; | |
819 | u8 *fh_params; | |
820 | u8 *ds_params; | |
821 | u8 *cf_params; | |
822 | struct ieee80211_tim_ie *tim; | |
823 | u8 *ibss_params; | |
824 | u8 *challenge; | |
825 | u8 *wpa; | |
826 | u8 *rsn; | |
827 | u8 *erp_info; | |
828 | u8 *ext_supp_rates; | |
829 | u8 *wmm_info; | |
830 | u8 *wmm_param; | |
831 | struct ieee80211_ht_cap *ht_cap_elem; | |
832 | struct ieee80211_ht_info *ht_info_elem; | |
833 | struct ieee80211_meshconf_ie *mesh_config; | |
834 | u8 *mesh_id; | |
835 | u8 *peer_link; | |
836 | u8 *preq; | |
837 | u8 *prep; | |
838 | u8 *perr; | |
839 | struct ieee80211_rann_ie *rann; | |
840 | u8 *ch_switch_elem; | |
841 | u8 *country_elem; | |
842 | u8 *pwr_constr_elem; | |
843 | u8 *quiet_elem; /* first quite element */ | |
844 | u8 *timeout_int; | |
845 | ||
846 | /* length of them, respectively */ | |
847 | u8 ssid_len; | |
848 | u8 supp_rates_len; | |
849 | u8 fh_params_len; | |
850 | u8 ds_params_len; | |
851 | u8 cf_params_len; | |
852 | u8 tim_len; | |
853 | u8 ibss_params_len; | |
854 | u8 challenge_len; | |
855 | u8 wpa_len; | |
856 | u8 rsn_len; | |
857 | u8 erp_info_len; | |
858 | u8 ext_supp_rates_len; | |
859 | u8 wmm_info_len; | |
860 | u8 wmm_param_len; | |
861 | u8 mesh_id_len; | |
862 | u8 peer_link_len; | |
863 | u8 preq_len; | |
864 | u8 prep_len; | |
865 | u8 perr_len; | |
866 | u8 ch_switch_elem_len; | |
867 | u8 country_elem_len; | |
868 | u8 pwr_constr_elem_len; | |
869 | u8 quiet_elem_len; | |
870 | u8 num_of_quiet_elem; /* can be more the one */ | |
871 | u8 timeout_int_len; | |
872 | }; | |
873 | ||
874 | static inline struct ieee80211_local *hw_to_local( | |
875 | struct ieee80211_hw *hw) | |
876 | { | |
877 | return container_of(hw, struct ieee80211_local, hw); | |
878 | } | |
879 | ||
880 | static inline struct ieee80211_hw *local_to_hw( | |
881 | struct ieee80211_local *local) | |
882 | { | |
883 | return &local->hw; | |
884 | } | |
885 | ||
886 | ||
887 | static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) | |
888 | { | |
889 | return compare_ether_addr(raddr, addr) == 0 || | |
890 | is_broadcast_ether_addr(raddr); | |
891 | } | |
892 | ||
893 | ||
894 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); | |
895 | void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); | |
896 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, | |
897 | u32 changed); | |
898 | void ieee80211_configure_filter(struct ieee80211_local *local); | |
899 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); | |
900 | ||
901 | extern bool ieee80211_disable_40mhz_24ghz; | |
902 | ||
903 | /* STA code */ | |
904 | void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); | |
905 | int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, | |
906 | struct cfg80211_auth_request *req); | |
907 | int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, | |
908 | struct cfg80211_assoc_request *req); | |
909 | int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, | |
910 | struct cfg80211_deauth_request *req, | |
911 | void *cookie); | |
912 | int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, | |
913 | struct cfg80211_disassoc_request *req, | |
914 | void *cookie); | |
915 | ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, | |
916 | struct sk_buff *skb); | |
917 | void ieee80211_send_pspoll(struct ieee80211_local *local, | |
918 | struct ieee80211_sub_if_data *sdata); | |
919 | void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency); | |
920 | int ieee80211_max_network_latency(struct notifier_block *nb, | |
921 | unsigned long data, void *dummy); | |
922 | void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, | |
923 | struct ieee80211_channel_sw_ie *sw_elem, | |
924 | struct ieee80211_bss *bss); | |
925 | void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata); | |
926 | void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); | |
927 | ||
928 | /* IBSS code */ | |
929 | void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); | |
930 | void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); | |
931 | ieee80211_rx_result | |
932 | ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); | |
933 | struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, | |
934 | u8 *bssid, u8 *addr, u32 supp_rates); | |
935 | int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, | |
936 | struct cfg80211_ibss_params *params); | |
937 | int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); | |
938 | void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata); | |
939 | void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata); | |
940 | ||
941 | /* scan/BSS handling */ | |
942 | void ieee80211_scan_work(struct work_struct *work); | |
943 | int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, | |
944 | const u8 *ssid, u8 ssid_len); | |
945 | int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, | |
946 | struct cfg80211_scan_request *req); | |
947 | void ieee80211_scan_cancel(struct ieee80211_local *local); | |
948 | ieee80211_rx_result | |
949 | ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); | |
950 | ||
951 | void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); | |
952 | struct ieee80211_bss * | |
953 | ieee80211_bss_info_update(struct ieee80211_local *local, | |
954 | struct ieee80211_rx_status *rx_status, | |
955 | struct ieee80211_mgmt *mgmt, | |
956 | size_t len, | |
957 | struct ieee802_11_elems *elems, | |
958 | struct ieee80211_channel *channel, | |
959 | bool beacon); | |
960 | struct ieee80211_bss * | |
961 | ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, | |
962 | u8 *ssid, u8 ssid_len); | |
963 | void ieee80211_rx_bss_put(struct ieee80211_local *local, | |
964 | struct ieee80211_bss *bss); | |
965 | ||
966 | /* interface handling */ | |
967 | int ieee80211_iface_init(void); | |
968 | void ieee80211_iface_exit(void); | |
969 | int ieee80211_if_add(struct ieee80211_local *local, const char *name, | |
970 | struct net_device **new_dev, enum nl80211_iftype type, | |
971 | struct vif_params *params); | |
972 | int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, | |
973 | enum nl80211_iftype type); | |
974 | void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); | |
975 | void ieee80211_remove_interfaces(struct ieee80211_local *local); | |
976 | u32 __ieee80211_recalc_idle(struct ieee80211_local *local); | |
977 | void ieee80211_recalc_idle(struct ieee80211_local *local); | |
978 | ||
979 | static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) | |
980 | { | |
981 | return netif_running(sdata->dev); | |
982 | } | |
983 | ||
984 | /* tx handling */ | |
985 | void ieee80211_clear_tx_pending(struct ieee80211_local *local); | |
986 | void ieee80211_tx_pending(unsigned long data); | |
987 | netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, | |
988 | struct net_device *dev); | |
989 | netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, | |
990 | struct net_device *dev); | |
991 | ||
992 | /* | |
993 | * radiotap header for status frames | |
994 | */ | |
995 | struct ieee80211_tx_status_rtap_hdr { | |
996 | struct ieee80211_radiotap_header hdr; | |
997 | u8 rate; | |
998 | u8 padding_for_rate; | |
999 | __le16 tx_flags; | |
1000 | u8 data_retries; | |
1001 | } __attribute__ ((packed)); | |
1002 | ||
1003 | ||
1004 | /* HT */ | |
1005 | void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband, | |
1006 | struct ieee80211_ht_cap *ht_cap_ie, | |
1007 | struct ieee80211_sta_ht_cap *ht_cap); | |
1008 | void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn); | |
1009 | void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, | |
1010 | const u8 *da, u16 tid, | |
1011 | u16 initiator, u16 reason_code); | |
1012 | int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, | |
1013 | enum ieee80211_smps_mode smps, const u8 *da, | |
1014 | const u8 *bssid); | |
1015 | ||
1016 | void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, | |
1017 | u16 tid, u16 initiator, u16 reason); | |
1018 | void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, | |
1019 | u16 initiator, u16 reason); | |
1020 | void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta); | |
1021 | void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, | |
1022 | struct sta_info *sta, | |
1023 | struct ieee80211_mgmt *mgmt, size_t len); | |
1024 | void ieee80211_process_addba_resp(struct ieee80211_local *local, | |
1025 | struct sta_info *sta, | |
1026 | struct ieee80211_mgmt *mgmt, | |
1027 | size_t len); | |
1028 | void ieee80211_process_addba_request(struct ieee80211_local *local, | |
1029 | struct sta_info *sta, | |
1030 | struct ieee80211_mgmt *mgmt, | |
1031 | size_t len); | |
1032 | ||
1033 | int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, | |
1034 | enum ieee80211_back_parties initiator); | |
1035 | int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, | |
1036 | enum ieee80211_back_parties initiator); | |
1037 | ||
1038 | /* Spectrum management */ | |
1039 | void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, | |
1040 | struct ieee80211_mgmt *mgmt, | |
1041 | size_t len); | |
1042 | ||
1043 | /* Suspend/resume and hw reconfiguration */ | |
1044 | int ieee80211_reconfig(struct ieee80211_local *local); | |
1045 | void ieee80211_stop_device(struct ieee80211_local *local); | |
1046 | ||
1047 | #ifdef CONFIG_PM | |
1048 | int __ieee80211_suspend(struct ieee80211_hw *hw); | |
1049 | ||
1050 | static inline int __ieee80211_resume(struct ieee80211_hw *hw) | |
1051 | { | |
1052 | return ieee80211_reconfig(hw_to_local(hw)); | |
1053 | } | |
1054 | #else | |
1055 | static inline int __ieee80211_suspend(struct ieee80211_hw *hw) | |
1056 | { | |
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | static inline int __ieee80211_resume(struct ieee80211_hw *hw) | |
1061 | { | |
1062 | return 0; | |
1063 | } | |
1064 | #endif | |
1065 | ||
1066 | /* utility functions/constants */ | |
1067 | extern void *mac80211_wiphy_privid; /* for wiphy privid */ | |
1068 | u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, | |
1069 | enum nl80211_iftype type); | |
1070 | int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, | |
1071 | int rate, int erp, int short_preamble); | |
1072 | void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, | |
1073 | struct ieee80211_hdr *hdr, const u8 *tsc, | |
1074 | gfp_t gfp); | |
1075 | void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata); | |
1076 | void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); | |
1077 | void ieee802_11_parse_elems(u8 *start, size_t len, | |
1078 | struct ieee802_11_elems *elems); | |
1079 | u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, | |
1080 | struct ieee802_11_elems *elems, | |
1081 | u64 filter, u32 crc); | |
1082 | u32 ieee80211_mandatory_rates(struct ieee80211_local *local, | |
1083 | enum ieee80211_band band); | |
1084 | ||
1085 | void ieee80211_dynamic_ps_enable_work(struct work_struct *work); | |
1086 | void ieee80211_dynamic_ps_disable_work(struct work_struct *work); | |
1087 | void ieee80211_dynamic_ps_timer(unsigned long data); | |
1088 | void ieee80211_send_nullfunc(struct ieee80211_local *local, | |
1089 | struct ieee80211_sub_if_data *sdata, | |
1090 | int powersave); | |
1091 | void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, | |
1092 | struct ieee80211_hdr *hdr); | |
1093 | void ieee80211_beacon_loss_work(struct work_struct *work); | |
1094 | ||
1095 | void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, | |
1096 | enum queue_stop_reason reason); | |
1097 | void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, | |
1098 | enum queue_stop_reason reason); | |
1099 | void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, | |
1100 | enum queue_stop_reason reason); | |
1101 | void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, | |
1102 | enum queue_stop_reason reason); | |
1103 | void ieee80211_add_pending_skb(struct ieee80211_local *local, | |
1104 | struct sk_buff *skb); | |
1105 | int ieee80211_add_pending_skbs(struct ieee80211_local *local, | |
1106 | struct sk_buff_head *skbs); | |
1107 | ||
1108 | void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, | |
1109 | u16 transaction, u16 auth_alg, | |
1110 | u8 *extra, size_t extra_len, const u8 *bssid, | |
1111 | const u8 *key, u8 key_len, u8 key_idx); | |
1112 | int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, | |
1113 | const u8 *ie, size_t ie_len, | |
1114 | enum ieee80211_band band); | |
1115 | void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, | |
1116 | const u8 *ssid, size_t ssid_len, | |
1117 | const u8 *ie, size_t ie_len); | |
1118 | ||
1119 | void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, | |
1120 | const size_t supp_rates_len, | |
1121 | const u8 *supp_rates); | |
1122 | u32 ieee80211_sta_get_rates(struct ieee80211_local *local, | |
1123 | struct ieee802_11_elems *elems, | |
1124 | enum ieee80211_band band); | |
1125 | int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, | |
1126 | enum ieee80211_smps_mode smps_mode); | |
1127 | void ieee80211_recalc_smps(struct ieee80211_local *local, | |
1128 | struct ieee80211_sub_if_data *forsdata); | |
1129 | ||
1130 | #ifdef CONFIG_MAC80211_NOINLINE | |
1131 | #define debug_noinline noinline | |
1132 | #else | |
1133 | #define debug_noinline | |
1134 | #endif | |
1135 | ||
1136 | #endif /* IEEE80211_I_H */ |