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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 2007-2010 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 <linux/leds.h> | |
27 | #include <linux/idr.h> | |
28 | #include <net/ieee80211_radiotap.h> | |
29 | #include <net/cfg80211.h> | |
30 | #include <net/mac80211.h> | |
31 | #include "key.h" | |
32 | #include "sta_info.h" | |
33 | #include "debug.h" | |
34 | ||
35 | struct ieee80211_local; | |
36 | ||
37 | /* Maximum number of broadcast/multicast frames to buffer when some of the | |
38 | * associated stations are using power saving. */ | |
39 | #define AP_MAX_BC_BUFFER 128 | |
40 | ||
41 | /* Maximum number of frames buffered to all STAs, including multicast frames. | |
42 | * Note: increasing this limit increases the potential memory requirement. Each | |
43 | * frame can be up to about 2 kB long. */ | |
44 | #define TOTAL_MAX_TX_BUFFER 512 | |
45 | ||
46 | /* Required encryption head and tailroom */ | |
47 | #define IEEE80211_ENCRYPT_HEADROOM 8 | |
48 | #define IEEE80211_ENCRYPT_TAILROOM 18 | |
49 | ||
50 | /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent | |
51 | * reception of at least three fragmented frames. This limit can be increased | |
52 | * by changing this define, at the cost of slower frame reassembly and | |
53 | * increased memory use (about 2 kB of RAM per entry). */ | |
54 | #define IEEE80211_FRAGMENT_MAX 4 | |
55 | ||
56 | #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024)) | |
57 | #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x)) | |
58 | ||
59 | /* | |
60 | * Some APs experience problems when working with U-APSD. Decrease the | |
61 | * probability of that happening by using legacy mode for all ACs but VO. | |
62 | * The AP that caused us trouble was a Cisco 4410N. It ignores our | |
63 | * setting, and always treats non-VO ACs as legacy. | |
64 | */ | |
65 | #define IEEE80211_DEFAULT_UAPSD_QUEUES \ | |
66 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VO | |
67 | ||
68 | #define IEEE80211_DEFAULT_MAX_SP_LEN \ | |
69 | IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL | |
70 | ||
71 | struct ieee80211_fragment_entry { | |
72 | unsigned long first_frag_time; | |
73 | unsigned int seq; | |
74 | unsigned int rx_queue; | |
75 | unsigned int last_frag; | |
76 | unsigned int extra_len; | |
77 | struct sk_buff_head skb_list; | |
78 | int ccmp; /* Whether fragments were encrypted with CCMP */ | |
79 | u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ | |
80 | }; | |
81 | ||
82 | ||
83 | struct ieee80211_bss { | |
84 | /* don't want to look up all the time */ | |
85 | size_t ssid_len; | |
86 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | |
87 | ||
88 | u32 device_ts; | |
89 | ||
90 | u8 dtim_period; | |
91 | ||
92 | bool wmm_used; | |
93 | bool uapsd_supported; | |
94 | ||
95 | unsigned long last_probe_resp; | |
96 | ||
97 | #ifdef CONFIG_MAC80211_MESH | |
98 | u8 *mesh_id; | |
99 | size_t mesh_id_len; | |
100 | u8 *mesh_cfg; | |
101 | #endif | |
102 | ||
103 | #define IEEE80211_MAX_SUPP_RATES 32 | |
104 | u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; | |
105 | size_t supp_rates_len; | |
106 | ||
107 | /* | |
108 | * During association, we save an ERP value from a probe response so | |
109 | * that we can feed ERP info to the driver when handling the | |
110 | * association completes. these fields probably won't be up-to-date | |
111 | * otherwise, you probably don't want to use them. | |
112 | */ | |
113 | bool has_erp_value; | |
114 | u8 erp_value; | |
115 | ||
116 | /* Keep track of the corruption of the last beacon/probe response. */ | |
117 | u8 corrupt_data; | |
118 | ||
119 | /* Keep track of what bits of information we have valid info for. */ | |
120 | u8 valid_data; | |
121 | }; | |
122 | ||
123 | /** | |
124 | * enum ieee80211_corrupt_data_flags - BSS data corruption flags | |
125 | * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted | |
126 | * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted | |
127 | * | |
128 | * These are bss flags that are attached to a bss in the | |
129 | * @corrupt_data field of &struct ieee80211_bss. | |
130 | */ | |
131 | enum ieee80211_bss_corrupt_data_flags { | |
132 | IEEE80211_BSS_CORRUPT_BEACON = BIT(0), | |
133 | IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) | |
134 | }; | |
135 | ||
136 | /** | |
137 | * enum ieee80211_valid_data_flags - BSS valid data flags | |
138 | * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE | |
139 | * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE | |
140 | * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE | |
141 | * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE | |
142 | * | |
143 | * These are bss flags that are attached to a bss in the | |
144 | * @valid_data field of &struct ieee80211_bss. They show which parts | |
145 | * of the data structure were recieved as a result of an un-corrupted | |
146 | * beacon/probe response. | |
147 | */ | |
148 | enum ieee80211_bss_valid_data_flags { | |
149 | IEEE80211_BSS_VALID_DTIM = BIT(0), | |
150 | IEEE80211_BSS_VALID_WMM = BIT(1), | |
151 | IEEE80211_BSS_VALID_RATES = BIT(2), | |
152 | IEEE80211_BSS_VALID_ERP = BIT(3) | |
153 | }; | |
154 | ||
155 | static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss) | |
156 | { | |
157 | #ifdef CONFIG_MAC80211_MESH | |
158 | return bss->mesh_cfg; | |
159 | #endif | |
160 | return NULL; | |
161 | } | |
162 | ||
163 | static inline u8 *bss_mesh_id(struct ieee80211_bss *bss) | |
164 | { | |
165 | #ifdef CONFIG_MAC80211_MESH | |
166 | return bss->mesh_id; | |
167 | #endif | |
168 | return NULL; | |
169 | } | |
170 | ||
171 | static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss) | |
172 | { | |
173 | #ifdef CONFIG_MAC80211_MESH | |
174 | return bss->mesh_id_len; | |
175 | #endif | |
176 | return 0; | |
177 | } | |
178 | ||
179 | ||
180 | typedef unsigned __bitwise__ ieee80211_tx_result; | |
181 | #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) | |
182 | #define TX_DROP ((__force ieee80211_tx_result) 1u) | |
183 | #define TX_QUEUED ((__force ieee80211_tx_result) 2u) | |
184 | ||
185 | #define IEEE80211_TX_UNICAST BIT(1) | |
186 | #define IEEE80211_TX_PS_BUFFERED BIT(2) | |
187 | ||
188 | struct ieee80211_tx_data { | |
189 | struct sk_buff *skb; | |
190 | struct sk_buff_head skbs; | |
191 | struct ieee80211_local *local; | |
192 | struct ieee80211_sub_if_data *sdata; | |
193 | struct sta_info *sta; | |
194 | struct ieee80211_key *key; | |
195 | ||
196 | struct ieee80211_channel *channel; | |
197 | ||
198 | unsigned int flags; | |
199 | }; | |
200 | ||
201 | ||
202 | typedef unsigned __bitwise__ ieee80211_rx_result; | |
203 | #define RX_CONTINUE ((__force ieee80211_rx_result) 0u) | |
204 | #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) | |
205 | #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) | |
206 | #define RX_QUEUED ((__force ieee80211_rx_result) 3u) | |
207 | ||
208 | /** | |
209 | * enum ieee80211_packet_rx_flags - packet RX flags | |
210 | * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed | |
211 | * (incl. multicast frames) | |
212 | * @IEEE80211_RX_FRAGMENTED: fragmented frame | |
213 | * @IEEE80211_RX_AMSDU: a-MSDU packet | |
214 | * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed | |
215 | * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering | |
216 | * | |
217 | * These are per-frame flags that are attached to a frame in the | |
218 | * @rx_flags field of &struct ieee80211_rx_status. | |
219 | */ | |
220 | enum ieee80211_packet_rx_flags { | |
221 | IEEE80211_RX_RA_MATCH = BIT(1), | |
222 | IEEE80211_RX_FRAGMENTED = BIT(2), | |
223 | IEEE80211_RX_AMSDU = BIT(3), | |
224 | IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), | |
225 | IEEE80211_RX_DEFERRED_RELEASE = BIT(5), | |
226 | }; | |
227 | ||
228 | /** | |
229 | * enum ieee80211_rx_flags - RX data flags | |
230 | * | |
231 | * @IEEE80211_RX_CMNTR: received on cooked monitor already | |
232 | * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported | |
233 | * to cfg80211_report_obss_beacon(). | |
234 | * | |
235 | * These flags are used across handling multiple interfaces | |
236 | * for a single frame. | |
237 | */ | |
238 | enum ieee80211_rx_flags { | |
239 | IEEE80211_RX_CMNTR = BIT(0), | |
240 | IEEE80211_RX_BEACON_REPORTED = BIT(1), | |
241 | }; | |
242 | ||
243 | struct ieee80211_rx_data { | |
244 | struct sk_buff *skb; | |
245 | struct ieee80211_local *local; | |
246 | struct ieee80211_sub_if_data *sdata; | |
247 | struct sta_info *sta; | |
248 | struct ieee80211_key *key; | |
249 | ||
250 | unsigned int flags; | |
251 | ||
252 | /* | |
253 | * Index into sequence numbers array, 0..16 | |
254 | * since the last (16) is used for non-QoS, | |
255 | * will be 16 on non-QoS frames. | |
256 | */ | |
257 | int seqno_idx; | |
258 | ||
259 | /* | |
260 | * Index into the security IV/PN arrays, 0..16 | |
261 | * since the last (16) is used for CCMP-encrypted | |
262 | * management frames, will be set to 16 on mgmt | |
263 | * frames and 0 on non-QoS frames. | |
264 | */ | |
265 | int security_idx; | |
266 | ||
267 | u32 tkip_iv32; | |
268 | u16 tkip_iv16; | |
269 | }; | |
270 | ||
271 | struct beacon_data { | |
272 | u8 *head, *tail; | |
273 | int head_len, tail_len; | |
274 | struct rcu_head rcu_head; | |
275 | }; | |
276 | ||
277 | struct ieee80211_if_ap { | |
278 | struct beacon_data __rcu *beacon; | |
279 | struct sk_buff __rcu *probe_resp; | |
280 | ||
281 | struct list_head vlans; | |
282 | ||
283 | /* yes, this looks ugly, but guarantees that we can later use | |
284 | * bitmap_empty :) | |
285 | * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ | |
286 | u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; | |
287 | struct sk_buff_head ps_bc_buf; | |
288 | atomic_t num_sta_ps; /* number of stations in PS mode */ | |
289 | atomic_t num_mcast_sta; /* number of stations receiving multicast */ | |
290 | int dtim_count; | |
291 | bool dtim_bc_mc; | |
292 | }; | |
293 | ||
294 | struct ieee80211_if_wds { | |
295 | struct sta_info *sta; | |
296 | u8 remote_addr[ETH_ALEN]; | |
297 | }; | |
298 | ||
299 | struct ieee80211_if_vlan { | |
300 | struct list_head list; | |
301 | ||
302 | /* used for all tx if the VLAN is configured to 4-addr mode */ | |
303 | struct sta_info __rcu *sta; | |
304 | }; | |
305 | ||
306 | struct mesh_stats { | |
307 | __u32 fwded_mcast; /* Mesh forwarded multicast frames */ | |
308 | __u32 fwded_unicast; /* Mesh forwarded unicast frames */ | |
309 | __u32 fwded_frames; /* Mesh total forwarded frames */ | |
310 | __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ | |
311 | __u32 dropped_frames_no_route; /* Not transmitted, no route found */ | |
312 | __u32 dropped_frames_congestion;/* Not forwarded due to congestion */ | |
313 | atomic_t estab_plinks; | |
314 | }; | |
315 | ||
316 | #define PREQ_Q_F_START 0x1 | |
317 | #define PREQ_Q_F_REFRESH 0x2 | |
318 | struct mesh_preq_queue { | |
319 | struct list_head list; | |
320 | u8 dst[ETH_ALEN]; | |
321 | u8 flags; | |
322 | }; | |
323 | ||
324 | #if HZ/100 == 0 | |
325 | #define IEEE80211_ROC_MIN_LEFT 1 | |
326 | #else | |
327 | #define IEEE80211_ROC_MIN_LEFT (HZ/100) | |
328 | #endif | |
329 | ||
330 | struct ieee80211_roc_work { | |
331 | struct list_head list; | |
332 | struct list_head dependents; | |
333 | ||
334 | struct delayed_work work; | |
335 | ||
336 | struct ieee80211_sub_if_data *sdata; | |
337 | ||
338 | struct ieee80211_channel *chan; | |
339 | enum nl80211_channel_type chan_type; | |
340 | ||
341 | bool started, abort, hw_begun, notified; | |
342 | ||
343 | unsigned long hw_start_time; | |
344 | ||
345 | u32 duration, req_duration; | |
346 | struct sk_buff *frame; | |
347 | u64 mgmt_tx_cookie; | |
348 | }; | |
349 | ||
350 | /* flags used in struct ieee80211_if_managed.flags */ | |
351 | enum ieee80211_sta_flags { | |
352 | IEEE80211_STA_BEACON_POLL = BIT(0), | |
353 | IEEE80211_STA_CONNECTION_POLL = BIT(1), | |
354 | IEEE80211_STA_CONTROL_PORT = BIT(2), | |
355 | IEEE80211_STA_DISABLE_11N = BIT(4), | |
356 | IEEE80211_STA_CSA_RECEIVED = BIT(5), | |
357 | IEEE80211_STA_MFP_ENABLED = BIT(6), | |
358 | IEEE80211_STA_UAPSD_ENABLED = BIT(7), | |
359 | IEEE80211_STA_NULLFUNC_ACKED = BIT(8), | |
360 | IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9), | |
361 | IEEE80211_STA_DISABLE_40MHZ = BIT(10), | |
362 | }; | |
363 | ||
364 | struct ieee80211_mgd_auth_data { | |
365 | struct cfg80211_bss *bss; | |
366 | unsigned long timeout; | |
367 | int tries; | |
368 | u16 algorithm, expected_transaction; | |
369 | ||
370 | u8 key[WLAN_KEY_LEN_WEP104]; | |
371 | u8 key_len, key_idx; | |
372 | bool done; | |
373 | ||
374 | size_t ie_len; | |
375 | u8 ie[]; | |
376 | }; | |
377 | ||
378 | struct ieee80211_mgd_assoc_data { | |
379 | struct cfg80211_bss *bss; | |
380 | const u8 *supp_rates; | |
381 | ||
382 | unsigned long timeout; | |
383 | int tries; | |
384 | ||
385 | u16 capability; | |
386 | u8 prev_bssid[ETH_ALEN]; | |
387 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | |
388 | u8 ssid_len; | |
389 | u8 supp_rates_len; | |
390 | bool wmm, uapsd; | |
391 | bool have_beacon; | |
392 | bool sent_assoc; | |
393 | bool synced; | |
394 | ||
395 | u8 ap_ht_param; | |
396 | ||
397 | size_t ie_len; | |
398 | u8 ie[]; | |
399 | }; | |
400 | ||
401 | struct ieee80211_if_managed { | |
402 | struct timer_list timer; | |
403 | struct timer_list conn_mon_timer; | |
404 | struct timer_list bcn_mon_timer; | |
405 | struct timer_list chswitch_timer; | |
406 | struct work_struct monitor_work; | |
407 | struct work_struct chswitch_work; | |
408 | struct work_struct beacon_connection_loss_work; | |
409 | ||
410 | unsigned long beacon_timeout; | |
411 | unsigned long probe_timeout; | |
412 | int probe_send_count; | |
413 | bool nullfunc_failed; | |
414 | ||
415 | struct mutex mtx; | |
416 | struct cfg80211_bss *associated; | |
417 | struct ieee80211_mgd_auth_data *auth_data; | |
418 | struct ieee80211_mgd_assoc_data *assoc_data; | |
419 | ||
420 | u8 bssid[ETH_ALEN]; | |
421 | ||
422 | u16 aid; | |
423 | ||
424 | unsigned long timers_running; /* used for quiesce/restart */ | |
425 | bool powersave; /* powersave requested for this iface */ | |
426 | bool broken_ap; /* AP is broken -- turn off powersave */ | |
427 | enum ieee80211_smps_mode req_smps, /* requested smps mode */ | |
428 | ap_smps, /* smps mode AP thinks we're in */ | |
429 | driver_smps_mode; /* smps mode request */ | |
430 | ||
431 | struct work_struct request_smps_work; | |
432 | ||
433 | unsigned int flags; | |
434 | ||
435 | bool beacon_crc_valid; | |
436 | u32 beacon_crc; | |
437 | ||
438 | enum { | |
439 | IEEE80211_MFP_DISABLED, | |
440 | IEEE80211_MFP_OPTIONAL, | |
441 | IEEE80211_MFP_REQUIRED | |
442 | } mfp; /* management frame protection */ | |
443 | ||
444 | /* | |
445 | * Bitmask of enabled u-apsd queues, | |
446 | * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association | |
447 | * to take effect. | |
448 | */ | |
449 | unsigned int uapsd_queues; | |
450 | ||
451 | /* | |
452 | * Maximum number of buffered frames AP can deliver during a | |
453 | * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. | |
454 | * Needs a new association to take effect. | |
455 | */ | |
456 | unsigned int uapsd_max_sp_len; | |
457 | ||
458 | int wmm_last_param_set; | |
459 | ||
460 | u8 use_4addr; | |
461 | ||
462 | /* Signal strength from the last Beacon frame in the current BSS. */ | |
463 | int last_beacon_signal; | |
464 | ||
465 | /* | |
466 | * Weighted average of the signal strength from Beacon frames in the | |
467 | * current BSS. This is in units of 1/16 of the signal unit to maintain | |
468 | * accuracy and to speed up calculations, i.e., the value need to be | |
469 | * divided by 16 to get the actual value. | |
470 | */ | |
471 | int ave_beacon_signal; | |
472 | ||
473 | /* | |
474 | * Number of Beacon frames used in ave_beacon_signal. This can be used | |
475 | * to avoid generating less reliable cqm events that would be based | |
476 | * only on couple of received frames. | |
477 | */ | |
478 | unsigned int count_beacon_signal; | |
479 | ||
480 | /* | |
481 | * Last Beacon frame signal strength average (ave_beacon_signal / 16) | |
482 | * that triggered a cqm event. 0 indicates that no event has been | |
483 | * generated for the current association. | |
484 | */ | |
485 | int last_cqm_event_signal; | |
486 | ||
487 | /* | |
488 | * State variables for keeping track of RSSI of the AP currently | |
489 | * connected to and informing driver when RSSI has gone | |
490 | * below/above a certain threshold. | |
491 | */ | |
492 | int rssi_min_thold, rssi_max_thold; | |
493 | int last_ave_beacon_signal; | |
494 | ||
495 | struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ | |
496 | struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ | |
497 | }; | |
498 | ||
499 | struct ieee80211_if_ibss { | |
500 | struct timer_list timer; | |
501 | ||
502 | struct mutex mtx; | |
503 | ||
504 | unsigned long last_scan_completed; | |
505 | ||
506 | u32 basic_rates; | |
507 | ||
508 | bool timer_running; | |
509 | ||
510 | bool fixed_bssid; | |
511 | bool fixed_channel; | |
512 | bool privacy; | |
513 | ||
514 | bool control_port; | |
515 | unsigned int auth_frame_registrations; | |
516 | ||
517 | u8 bssid[ETH_ALEN] __aligned(2); | |
518 | u8 ssid[IEEE80211_MAX_SSID_LEN]; | |
519 | u8 ssid_len, ie_len; | |
520 | u8 *ie; | |
521 | struct ieee80211_channel *channel; | |
522 | enum nl80211_channel_type channel_type; | |
523 | ||
524 | unsigned long ibss_join_req; | |
525 | /* probe response/beacon for IBSS */ | |
526 | struct sk_buff __rcu *presp; | |
527 | struct sk_buff *skb; | |
528 | ||
529 | spinlock_t incomplete_lock; | |
530 | struct list_head incomplete_stations; | |
531 | ||
532 | enum { | |
533 | IEEE80211_IBSS_MLME_SEARCH, | |
534 | IEEE80211_IBSS_MLME_JOINED, | |
535 | } state; | |
536 | }; | |
537 | ||
538 | /** | |
539 | * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface | |
540 | * | |
541 | * these declarations define the interface, which enables | |
542 | * vendor-specific mesh synchronization | |
543 | * | |
544 | */ | |
545 | struct ieee802_11_elems; | |
546 | struct ieee80211_mesh_sync_ops { | |
547 | void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, | |
548 | u16 stype, | |
549 | struct ieee80211_mgmt *mgmt, | |
550 | struct ieee802_11_elems *elems, | |
551 | struct ieee80211_rx_status *rx_status); | |
552 | void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata); | |
553 | /* add other framework functions here */ | |
554 | }; | |
555 | ||
556 | struct ieee80211_if_mesh { | |
557 | struct timer_list housekeeping_timer; | |
558 | struct timer_list mesh_path_timer; | |
559 | struct timer_list mesh_path_root_timer; | |
560 | ||
561 | unsigned long timers_running; | |
562 | ||
563 | unsigned long wrkq_flags; | |
564 | ||
565 | u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; | |
566 | size_t mesh_id_len; | |
567 | /* Active Path Selection Protocol Identifier */ | |
568 | u8 mesh_pp_id; | |
569 | /* Active Path Selection Metric Identifier */ | |
570 | u8 mesh_pm_id; | |
571 | /* Congestion Control Mode Identifier */ | |
572 | u8 mesh_cc_id; | |
573 | /* Synchronization Protocol Identifier */ | |
574 | u8 mesh_sp_id; | |
575 | /* Authentication Protocol Identifier */ | |
576 | u8 mesh_auth_id; | |
577 | /* Local mesh Sequence Number */ | |
578 | u32 sn; | |
579 | /* Last used PREQ ID */ | |
580 | u32 preq_id; | |
581 | atomic_t mpaths; | |
582 | /* Timestamp of last SN update */ | |
583 | unsigned long last_sn_update; | |
584 | /* Time when it's ok to send next PERR */ | |
585 | unsigned long next_perr; | |
586 | /* Timestamp of last PREQ sent */ | |
587 | unsigned long last_preq; | |
588 | struct mesh_rmc *rmc; | |
589 | spinlock_t mesh_preq_queue_lock; | |
590 | struct mesh_preq_queue preq_queue; | |
591 | int preq_queue_len; | |
592 | struct mesh_stats mshstats; | |
593 | struct mesh_config mshcfg; | |
594 | u32 mesh_seqnum; | |
595 | bool accepting_plinks; | |
596 | int num_gates; | |
597 | const u8 *ie; | |
598 | u8 ie_len; | |
599 | enum { | |
600 | IEEE80211_MESH_SEC_NONE = 0x0, | |
601 | IEEE80211_MESH_SEC_AUTHED = 0x1, | |
602 | IEEE80211_MESH_SEC_SECURED = 0x2, | |
603 | } security; | |
604 | /* Extensible Synchronization Framework */ | |
605 | struct ieee80211_mesh_sync_ops *sync_ops; | |
606 | s64 sync_offset_clockdrift_max; | |
607 | spinlock_t sync_offset_lock; | |
608 | bool adjusting_tbtt; | |
609 | }; | |
610 | ||
611 | #ifdef CONFIG_MAC80211_MESH | |
612 | #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ | |
613 | do { (msh)->mshstats.name++; } while (0) | |
614 | #else | |
615 | #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ | |
616 | do { } while (0) | |
617 | #endif | |
618 | ||
619 | /** | |
620 | * enum ieee80211_sub_if_data_flags - virtual interface flags | |
621 | * | |
622 | * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets | |
623 | * @IEEE80211_SDATA_PROMISC: interface is promisc | |
624 | * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode | |
625 | * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between | |
626 | * associated stations and deliver multicast frames both | |
627 | * back to wireless media and to the local net stack. | |
628 | * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. | |
629 | * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver | |
630 | */ | |
631 | enum ieee80211_sub_if_data_flags { | |
632 | IEEE80211_SDATA_ALLMULTI = BIT(0), | |
633 | IEEE80211_SDATA_PROMISC = BIT(1), | |
634 | IEEE80211_SDATA_OPERATING_GMODE = BIT(2), | |
635 | IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), | |
636 | IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), | |
637 | IEEE80211_SDATA_IN_DRIVER = BIT(5), | |
638 | }; | |
639 | ||
640 | /** | |
641 | * enum ieee80211_sdata_state_bits - virtual interface state bits | |
642 | * @SDATA_STATE_RUNNING: virtual interface is up & running; this | |
643 | * mirrors netif_running() but is separate for interface type | |
644 | * change handling while the interface is up | |
645 | * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel | |
646 | * mode, so queues are stopped | |
647 | */ | |
648 | enum ieee80211_sdata_state_bits { | |
649 | SDATA_STATE_RUNNING, | |
650 | SDATA_STATE_OFFCHANNEL, | |
651 | }; | |
652 | ||
653 | struct ieee80211_sub_if_data { | |
654 | struct list_head list; | |
655 | ||
656 | struct wireless_dev wdev; | |
657 | ||
658 | /* keys */ | |
659 | struct list_head key_list; | |
660 | ||
661 | /* count for keys needing tailroom space allocation */ | |
662 | int crypto_tx_tailroom_needed_cnt; | |
663 | ||
664 | struct net_device *dev; | |
665 | struct ieee80211_local *local; | |
666 | ||
667 | unsigned int flags; | |
668 | ||
669 | unsigned long state; | |
670 | ||
671 | int drop_unencrypted; | |
672 | ||
673 | char name[IFNAMSIZ]; | |
674 | ||
675 | /* to detect idle changes */ | |
676 | bool old_idle; | |
677 | ||
678 | /* Fragment table for host-based reassembly */ | |
679 | struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; | |
680 | unsigned int fragment_next; | |
681 | ||
682 | /* TID bitmap for NoAck policy */ | |
683 | u16 noack_map; | |
684 | ||
685 | /* bit field of ACM bits (BIT(802.1D tag)) */ | |
686 | u8 wmm_acm; | |
687 | ||
688 | struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; | |
689 | struct ieee80211_key __rcu *default_unicast_key; | |
690 | struct ieee80211_key __rcu *default_multicast_key; | |
691 | struct ieee80211_key __rcu *default_mgmt_key; | |
692 | ||
693 | u16 sequence_number; | |
694 | __be16 control_port_protocol; | |
695 | bool control_port_no_encrypt; | |
696 | ||
697 | struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; | |
698 | ||
699 | struct work_struct work; | |
700 | struct sk_buff_head skb_queue; | |
701 | ||
702 | bool arp_filter_state; | |
703 | ||
704 | /* | |
705 | * AP this belongs to: self in AP mode and | |
706 | * corresponding AP in VLAN mode, NULL for | |
707 | * all others (might be needed later in IBSS) | |
708 | */ | |
709 | struct ieee80211_if_ap *bss; | |
710 | ||
711 | /* bitmap of allowed (non-MCS) rate indexes for rate control */ | |
712 | u32 rc_rateidx_mask[IEEE80211_NUM_BANDS]; | |
713 | u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN]; | |
714 | ||
715 | union { | |
716 | struct ieee80211_if_ap ap; | |
717 | struct ieee80211_if_wds wds; | |
718 | struct ieee80211_if_vlan vlan; | |
719 | struct ieee80211_if_managed mgd; | |
720 | struct ieee80211_if_ibss ibss; | |
721 | struct ieee80211_if_mesh mesh; | |
722 | u32 mntr_flags; | |
723 | } u; | |
724 | ||
725 | #ifdef CONFIG_MAC80211_DEBUGFS | |
726 | struct { | |
727 | struct dentry *dir; | |
728 | struct dentry *subdir_stations; | |
729 | struct dentry *default_unicast_key; | |
730 | struct dentry *default_multicast_key; | |
731 | struct dentry *default_mgmt_key; | |
732 | } debugfs; | |
733 | #endif | |
734 | /* must be last, dynamically sized area in this! */ | |
735 | struct ieee80211_vif vif; | |
736 | }; | |
737 | ||
738 | static inline | |
739 | struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) | |
740 | { | |
741 | return container_of(p, struct ieee80211_sub_if_data, vif); | |
742 | } | |
743 | ||
744 | enum sdata_queue_type { | |
745 | IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0, | |
746 | IEEE80211_SDATA_QUEUE_AGG_START = 1, | |
747 | IEEE80211_SDATA_QUEUE_AGG_STOP = 2, | |
748 | }; | |
749 | ||
750 | enum { | |
751 | IEEE80211_RX_MSG = 1, | |
752 | IEEE80211_TX_STATUS_MSG = 2, | |
753 | IEEE80211_EOSP_MSG = 3, | |
754 | }; | |
755 | ||
756 | struct skb_eosp_msg_data { | |
757 | u8 sta[ETH_ALEN], iface[ETH_ALEN]; | |
758 | }; | |
759 | ||
760 | enum queue_stop_reason { | |
761 | IEEE80211_QUEUE_STOP_REASON_DRIVER, | |
762 | IEEE80211_QUEUE_STOP_REASON_PS, | |
763 | IEEE80211_QUEUE_STOP_REASON_CSA, | |
764 | IEEE80211_QUEUE_STOP_REASON_AGGREGATION, | |
765 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, | |
766 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, | |
767 | }; | |
768 | ||
769 | #ifdef CONFIG_MAC80211_LEDS | |
770 | struct tpt_led_trigger { | |
771 | struct led_trigger trig; | |
772 | char name[32]; | |
773 | const struct ieee80211_tpt_blink *blink_table; | |
774 | unsigned int blink_table_len; | |
775 | struct timer_list timer; | |
776 | unsigned long prev_traffic; | |
777 | unsigned long tx_bytes, rx_bytes; | |
778 | unsigned int active, want; | |
779 | bool running; | |
780 | }; | |
781 | #endif | |
782 | ||
783 | /** | |
784 | * mac80211 scan flags - currently active scan mode | |
785 | * | |
786 | * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as | |
787 | * well be on the operating channel | |
788 | * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to | |
789 | * determine if we are on the operating channel or not | |
790 | * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating | |
791 | * channel. This should not interrupt normal traffic. | |
792 | * @SCAN_COMPLETED: Set for our scan work function when the driver reported | |
793 | * that the scan completed. | |
794 | * @SCAN_ABORTED: Set for our scan work function when the driver reported | |
795 | * a scan complete for an aborted scan. | |
796 | */ | |
797 | enum { | |
798 | SCAN_SW_SCANNING, | |
799 | SCAN_HW_SCANNING, | |
800 | SCAN_ONCHANNEL_SCANNING, | |
801 | SCAN_COMPLETED, | |
802 | SCAN_ABORTED, | |
803 | }; | |
804 | ||
805 | /** | |
806 | * enum mac80211_scan_state - scan state machine states | |
807 | * | |
808 | * @SCAN_DECISION: Main entry point to the scan state machine, this state | |
809 | * determines if we should keep on scanning or switch back to the | |
810 | * operating channel | |
811 | * @SCAN_SET_CHANNEL: Set the next channel to be scanned | |
812 | * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses | |
813 | * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to | |
814 | * send out data | |
815 | * @SCAN_RESUME: Resume the scan and scan the next channel | |
816 | */ | |
817 | enum mac80211_scan_state { | |
818 | SCAN_DECISION, | |
819 | SCAN_SET_CHANNEL, | |
820 | SCAN_SEND_PROBE, | |
821 | SCAN_SUSPEND, | |
822 | SCAN_RESUME, | |
823 | }; | |
824 | ||
825 | struct ieee80211_local { | |
826 | /* embed the driver visible part. | |
827 | * don't cast (use the static inlines below), but we keep | |
828 | * it first anyway so they become a no-op */ | |
829 | struct ieee80211_hw hw; | |
830 | ||
831 | const struct ieee80211_ops *ops; | |
832 | ||
833 | /* | |
834 | * private workqueue to mac80211. mac80211 makes this accessible | |
835 | * via ieee80211_queue_work() | |
836 | */ | |
837 | struct workqueue_struct *workqueue; | |
838 | ||
839 | unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; | |
840 | /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ | |
841 | spinlock_t queue_stop_reason_lock; | |
842 | ||
843 | int open_count; | |
844 | int monitors, cooked_mntrs; | |
845 | /* number of interfaces with corresponding FIF_ flags */ | |
846 | int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, | |
847 | fif_probe_req; | |
848 | int probe_req_reg; | |
849 | unsigned int filter_flags; /* FIF_* */ | |
850 | ||
851 | bool wiphy_ciphers_allocated; | |
852 | ||
853 | /* protects the aggregated multicast list and filter calls */ | |
854 | spinlock_t filter_lock; | |
855 | ||
856 | /* used for uploading changed mc list */ | |
857 | struct work_struct reconfig_filter; | |
858 | ||
859 | /* used to reconfigure hardware SM PS */ | |
860 | struct work_struct recalc_smps; | |
861 | ||
862 | /* aggregated multicast list */ | |
863 | struct netdev_hw_addr_list mc_list; | |
864 | ||
865 | bool tim_in_locked_section; /* see ieee80211_beacon_get() */ | |
866 | ||
867 | /* | |
868 | * suspended is true if we finished all the suspend _and_ we have | |
869 | * not yet come up from resume. This is to be used by mac80211 | |
870 | * to ensure driver sanity during suspend and mac80211's own | |
871 | * sanity. It can eventually be used for WoW as well. | |
872 | */ | |
873 | bool suspended; | |
874 | ||
875 | /* | |
876 | * Resuming is true while suspended, but when we're reprogramming the | |
877 | * hardware -- at that time it's allowed to use ieee80211_queue_work() | |
878 | * again even though some other parts of the stack are still suspended | |
879 | * and we still drop received frames to avoid waking the stack. | |
880 | */ | |
881 | bool resuming; | |
882 | ||
883 | /* | |
884 | * quiescing is true during the suspend process _only_ to | |
885 | * ease timer cancelling etc. | |
886 | */ | |
887 | bool quiescing; | |
888 | ||
889 | /* device is started */ | |
890 | bool started; | |
891 | ||
892 | /* device is during a HW reconfig */ | |
893 | bool in_reconfig; | |
894 | ||
895 | /* wowlan is enabled -- don't reconfig on resume */ | |
896 | bool wowlan; | |
897 | ||
898 | int tx_headroom; /* required headroom for hardware/radiotap */ | |
899 | ||
900 | /* Tasklet and skb queue to process calls from IRQ mode. All frames | |
901 | * added to skb_queue will be processed, but frames in | |
902 | * skb_queue_unreliable may be dropped if the total length of these | |
903 | * queues increases over the limit. */ | |
904 | #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 | |
905 | struct tasklet_struct tasklet; | |
906 | struct sk_buff_head skb_queue; | |
907 | struct sk_buff_head skb_queue_unreliable; | |
908 | ||
909 | /* | |
910 | * Internal FIFO queue which is shared between multiple rx path | |
911 | * stages. Its main task is to provide a serialization mechanism, | |
912 | * so all rx handlers can enjoy having exclusive access to their | |
913 | * private data structures. | |
914 | */ | |
915 | struct sk_buff_head rx_skb_queue; | |
916 | bool running_rx_handler; /* protected by rx_skb_queue.lock */ | |
917 | ||
918 | /* Station data */ | |
919 | /* | |
920 | * The mutex only protects the list, hash table and | |
921 | * counter, reads are done with RCU. | |
922 | */ | |
923 | struct mutex sta_mtx; | |
924 | spinlock_t tim_lock; | |
925 | unsigned long num_sta; | |
926 | struct list_head sta_list; | |
927 | struct sta_info __rcu *sta_hash[STA_HASH_SIZE]; | |
928 | struct timer_list sta_cleanup; | |
929 | int sta_generation; | |
930 | ||
931 | struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; | |
932 | struct tasklet_struct tx_pending_tasklet; | |
933 | ||
934 | atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; | |
935 | ||
936 | /* number of interfaces with corresponding IFF_ flags */ | |
937 | atomic_t iff_allmultis, iff_promiscs; | |
938 | ||
939 | struct rate_control_ref *rate_ctrl; | |
940 | ||
941 | struct crypto_cipher *wep_tx_tfm; | |
942 | struct crypto_cipher *wep_rx_tfm; | |
943 | u32 wep_iv; | |
944 | ||
945 | /* see iface.c */ | |
946 | struct list_head interfaces; | |
947 | struct mutex iflist_mtx; | |
948 | ||
949 | /* | |
950 | * Key mutex, protects sdata's key_list and sta_info's | |
951 | * key pointers (write access, they're RCU.) | |
952 | */ | |
953 | struct mutex key_mtx; | |
954 | ||
955 | /* mutex for scan and work locking */ | |
956 | struct mutex mtx; | |
957 | ||
958 | /* Scanning and BSS list */ | |
959 | unsigned long scanning; | |
960 | struct cfg80211_ssid scan_ssid; | |
961 | struct cfg80211_scan_request *int_scan_req; | |
962 | struct cfg80211_scan_request *scan_req, *hw_scan_req; | |
963 | struct ieee80211_channel *scan_channel; | |
964 | enum ieee80211_band hw_scan_band; | |
965 | int scan_channel_idx; | |
966 | int scan_ies_len; | |
967 | ||
968 | struct ieee80211_sched_scan_ies sched_scan_ies; | |
969 | struct work_struct sched_scan_stopped_work; | |
970 | struct ieee80211_sub_if_data __rcu *sched_scan_sdata; | |
971 | ||
972 | unsigned long leave_oper_channel_time; | |
973 | enum mac80211_scan_state next_scan_state; | |
974 | struct delayed_work scan_work; | |
975 | struct ieee80211_sub_if_data __rcu *scan_sdata; | |
976 | enum nl80211_channel_type _oper_channel_type; | |
977 | struct ieee80211_channel *oper_channel, *csa_channel; | |
978 | ||
979 | /* Temporary remain-on-channel for off-channel operations */ | |
980 | struct ieee80211_channel *tmp_channel; | |
981 | enum nl80211_channel_type tmp_channel_type; | |
982 | ||
983 | /* SNMP counters */ | |
984 | /* dot11CountersTable */ | |
985 | u32 dot11TransmittedFragmentCount; | |
986 | u32 dot11MulticastTransmittedFrameCount; | |
987 | u32 dot11FailedCount; | |
988 | u32 dot11RetryCount; | |
989 | u32 dot11MultipleRetryCount; | |
990 | u32 dot11FrameDuplicateCount; | |
991 | u32 dot11ReceivedFragmentCount; | |
992 | u32 dot11MulticastReceivedFrameCount; | |
993 | u32 dot11TransmittedFrameCount; | |
994 | ||
995 | #ifdef CONFIG_MAC80211_LEDS | |
996 | int tx_led_counter, rx_led_counter; | |
997 | struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led; | |
998 | struct tpt_led_trigger *tpt_led_trigger; | |
999 | char tx_led_name[32], rx_led_name[32], | |
1000 | assoc_led_name[32], radio_led_name[32]; | |
1001 | #endif | |
1002 | ||
1003 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS | |
1004 | /* TX/RX handler statistics */ | |
1005 | unsigned int tx_handlers_drop; | |
1006 | unsigned int tx_handlers_queued; | |
1007 | unsigned int tx_handlers_drop_unencrypted; | |
1008 | unsigned int tx_handlers_drop_fragment; | |
1009 | unsigned int tx_handlers_drop_wep; | |
1010 | unsigned int tx_handlers_drop_not_assoc; | |
1011 | unsigned int tx_handlers_drop_unauth_port; | |
1012 | unsigned int rx_handlers_drop; | |
1013 | unsigned int rx_handlers_queued; | |
1014 | unsigned int rx_handlers_drop_nullfunc; | |
1015 | unsigned int rx_handlers_drop_defrag; | |
1016 | unsigned int rx_handlers_drop_short; | |
1017 | unsigned int tx_expand_skb_head; | |
1018 | unsigned int tx_expand_skb_head_cloned; | |
1019 | unsigned int rx_expand_skb_head; | |
1020 | unsigned int rx_expand_skb_head2; | |
1021 | unsigned int rx_handlers_fragments; | |
1022 | unsigned int tx_status_drop; | |
1023 | #define I802_DEBUG_INC(c) (c)++ | |
1024 | #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ | |
1025 | #define I802_DEBUG_INC(c) do { } while (0) | |
1026 | #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ | |
1027 | ||
1028 | ||
1029 | int total_ps_buffered; /* total number of all buffered unicast and | |
1030 | * multicast packets for power saving stations | |
1031 | */ | |
1032 | ||
1033 | bool pspolling; | |
1034 | bool offchannel_ps_enabled; | |
1035 | /* | |
1036 | * PS can only be enabled when we have exactly one managed | |
1037 | * interface (and monitors) in PS, this then points there. | |
1038 | */ | |
1039 | struct ieee80211_sub_if_data *ps_sdata; | |
1040 | struct work_struct dynamic_ps_enable_work; | |
1041 | struct work_struct dynamic_ps_disable_work; | |
1042 | struct timer_list dynamic_ps_timer; | |
1043 | struct notifier_block network_latency_notifier; | |
1044 | struct notifier_block ifa_notifier; | |
1045 | ||
1046 | /* | |
1047 | * The dynamic ps timeout configured from user space via WEXT - | |
1048 | * this will override whatever chosen by mac80211 internally. | |
1049 | */ | |
1050 | int dynamic_ps_forced_timeout; | |
1051 | int dynamic_ps_user_timeout; | |
1052 | bool disable_dynamic_ps; | |
1053 | ||
1054 | int user_power_level; /* in dBm */ | |
1055 | int power_constr_level; /* in dBm */ | |
1056 | ||
1057 | enum ieee80211_smps_mode smps_mode; | |
1058 | ||
1059 | struct work_struct restart_work; | |
1060 | ||
1061 | #ifdef CONFIG_MAC80211_DEBUGFS | |
1062 | struct local_debugfsdentries { | |
1063 | struct dentry *rcdir; | |
1064 | struct dentry *keys; | |
1065 | } debugfs; | |
1066 | #endif | |
1067 | ||
1068 | /* | |
1069 | * Remain-on-channel support | |
1070 | */ | |
1071 | struct list_head roc_list; | |
1072 | struct work_struct hw_roc_start, hw_roc_done; | |
1073 | unsigned long hw_roc_start_time; | |
1074 | ||
1075 | struct idr ack_status_frames; | |
1076 | spinlock_t ack_status_lock; | |
1077 | ||
1078 | /* dummy netdev for use w/ NAPI */ | |
1079 | struct net_device napi_dev; | |
1080 | ||
1081 | struct napi_struct napi; | |
1082 | ||
1083 | /* virtual monitor interface */ | |
1084 | struct ieee80211_sub_if_data __rcu *monitor_sdata; | |
1085 | }; | |
1086 | ||
1087 | static inline struct ieee80211_sub_if_data * | |
1088 | IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) | |
1089 | { | |
1090 | return netdev_priv(dev); | |
1091 | } | |
1092 | ||
1093 | static inline struct ieee80211_sub_if_data * | |
1094 | IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) | |
1095 | { | |
1096 | return container_of(wdev, struct ieee80211_sub_if_data, wdev); | |
1097 | } | |
1098 | ||
1099 | /* this struct represents 802.11n's RA/TID combination */ | |
1100 | struct ieee80211_ra_tid { | |
1101 | u8 ra[ETH_ALEN]; | |
1102 | u16 tid; | |
1103 | }; | |
1104 | ||
1105 | /* Parsed Information Elements */ | |
1106 | struct ieee802_11_elems { | |
1107 | u8 *ie_start; | |
1108 | size_t total_len; | |
1109 | ||
1110 | /* pointers to IEs */ | |
1111 | u8 *ssid; | |
1112 | u8 *supp_rates; | |
1113 | u8 *fh_params; | |
1114 | u8 *ds_params; | |
1115 | u8 *cf_params; | |
1116 | struct ieee80211_tim_ie *tim; | |
1117 | u8 *ibss_params; | |
1118 | u8 *challenge; | |
1119 | u8 *wpa; | |
1120 | u8 *rsn; | |
1121 | u8 *erp_info; | |
1122 | u8 *ext_supp_rates; | |
1123 | u8 *wmm_info; | |
1124 | u8 *wmm_param; | |
1125 | struct ieee80211_ht_cap *ht_cap_elem; | |
1126 | struct ieee80211_ht_operation *ht_operation; | |
1127 | struct ieee80211_meshconf_ie *mesh_config; | |
1128 | u8 *mesh_id; | |
1129 | u8 *peering; | |
1130 | u8 *preq; | |
1131 | u8 *prep; | |
1132 | u8 *perr; | |
1133 | struct ieee80211_rann_ie *rann; | |
1134 | u8 *ch_switch_elem; | |
1135 | u8 *country_elem; | |
1136 | u8 *pwr_constr_elem; | |
1137 | u8 *quiet_elem; /* first quite element */ | |
1138 | u8 *timeout_int; | |
1139 | ||
1140 | /* length of them, respectively */ | |
1141 | u8 ssid_len; | |
1142 | u8 supp_rates_len; | |
1143 | u8 fh_params_len; | |
1144 | u8 ds_params_len; | |
1145 | u8 cf_params_len; | |
1146 | u8 tim_len; | |
1147 | u8 ibss_params_len; | |
1148 | u8 challenge_len; | |
1149 | u8 wpa_len; | |
1150 | u8 rsn_len; | |
1151 | u8 erp_info_len; | |
1152 | u8 ext_supp_rates_len; | |
1153 | u8 wmm_info_len; | |
1154 | u8 wmm_param_len; | |
1155 | u8 mesh_id_len; | |
1156 | u8 peering_len; | |
1157 | u8 preq_len; | |
1158 | u8 prep_len; | |
1159 | u8 perr_len; | |
1160 | u8 ch_switch_elem_len; | |
1161 | u8 country_elem_len; | |
1162 | u8 pwr_constr_elem_len; | |
1163 | u8 quiet_elem_len; | |
1164 | u8 num_of_quiet_elem; /* can be more the one */ | |
1165 | u8 timeout_int_len; | |
1166 | ||
1167 | /* whether a parse error occurred while retrieving these elements */ | |
1168 | bool parse_error; | |
1169 | }; | |
1170 | ||
1171 | static inline struct ieee80211_local *hw_to_local( | |
1172 | struct ieee80211_hw *hw) | |
1173 | { | |
1174 | return container_of(hw, struct ieee80211_local, hw); | |
1175 | } | |
1176 | ||
1177 | ||
1178 | static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) | |
1179 | { | |
1180 | return ether_addr_equal(raddr, addr) || | |
1181 | is_broadcast_ether_addr(raddr); | |
1182 | } | |
1183 | ||
1184 | ||
1185 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); | |
1186 | void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); | |
1187 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, | |
1188 | u32 changed); | |
1189 | void ieee80211_configure_filter(struct ieee80211_local *local); | |
1190 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); | |
1191 | ||
1192 | /* STA code */ | |
1193 | void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); | |
1194 | int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, | |
1195 | struct cfg80211_auth_request *req); | |
1196 | int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, | |
1197 | struct cfg80211_assoc_request *req); | |
1198 | int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, | |
1199 | struct cfg80211_deauth_request *req); | |
1200 | int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, | |
1201 | struct cfg80211_disassoc_request *req); | |
1202 | void ieee80211_send_pspoll(struct ieee80211_local *local, | |
1203 | struct ieee80211_sub_if_data *sdata); | |
1204 | void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency); | |
1205 | int ieee80211_max_network_latency(struct notifier_block *nb, | |
1206 | unsigned long data, void *dummy); | |
1207 | int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata); | |
1208 | void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, | |
1209 | struct ieee80211_channel_sw_ie *sw_elem, | |
1210 | struct ieee80211_bss *bss, | |
1211 | u64 timestamp); | |
1212 | void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata); | |
1213 | void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); | |
1214 | void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); | |
1215 | void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, | |
1216 | struct sk_buff *skb); | |
1217 | void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); | |
1218 | void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); | |
1219 | void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); | |
1220 | ||
1221 | /* IBSS code */ | |
1222 | void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); | |
1223 | void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); | |
1224 | void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, | |
1225 | const u8 *bssid, const u8 *addr, u32 supp_rates); | |
1226 | int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, | |
1227 | struct cfg80211_ibss_params *params); | |
1228 | int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); | |
1229 | void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata); | |
1230 | void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata); | |
1231 | void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); | |
1232 | void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, | |
1233 | struct sk_buff *skb); | |
1234 | ||
1235 | /* mesh code */ | |
1236 | void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); | |
1237 | void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, | |
1238 | struct sk_buff *skb); | |
1239 | ||
1240 | /* scan/BSS handling */ | |
1241 | void ieee80211_scan_work(struct work_struct *work); | |
1242 | int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, | |
1243 | const u8 *ssid, u8 ssid_len, | |
1244 | struct ieee80211_channel *chan); | |
1245 | int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, | |
1246 | struct cfg80211_scan_request *req); | |
1247 | void ieee80211_scan_cancel(struct ieee80211_local *local); | |
1248 | void ieee80211_run_deferred_scan(struct ieee80211_local *local); | |
1249 | void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); | |
1250 | ||
1251 | void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); | |
1252 | struct ieee80211_bss * | |
1253 | ieee80211_bss_info_update(struct ieee80211_local *local, | |
1254 | struct ieee80211_rx_status *rx_status, | |
1255 | struct ieee80211_mgmt *mgmt, | |
1256 | size_t len, | |
1257 | struct ieee802_11_elems *elems, | |
1258 | struct ieee80211_channel *channel, | |
1259 | bool beacon); | |
1260 | void ieee80211_rx_bss_put(struct ieee80211_local *local, | |
1261 | struct ieee80211_bss *bss); | |
1262 | ||
1263 | /* scheduled scan handling */ | |
1264 | int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, | |
1265 | struct cfg80211_sched_scan_request *req); | |
1266 | int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata); | |
1267 | void ieee80211_sched_scan_stopped_work(struct work_struct *work); | |
1268 | ||
1269 | /* off-channel helpers */ | |
1270 | void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local, | |
1271 | bool offchannel_ps_enable); | |
1272 | void ieee80211_offchannel_return(struct ieee80211_local *local, | |
1273 | bool offchannel_ps_disable); | |
1274 | void ieee80211_roc_setup(struct ieee80211_local *local); | |
1275 | void ieee80211_start_next_roc(struct ieee80211_local *local); | |
1276 | void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata); | |
1277 | void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc); | |
1278 | void ieee80211_sw_roc_work(struct work_struct *work); | |
1279 | void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc); | |
1280 | ||
1281 | /* interface handling */ | |
1282 | int ieee80211_iface_init(void); | |
1283 | void ieee80211_iface_exit(void); | |
1284 | int ieee80211_if_add(struct ieee80211_local *local, const char *name, | |
1285 | struct wireless_dev **new_wdev, enum nl80211_iftype type, | |
1286 | struct vif_params *params); | |
1287 | int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, | |
1288 | enum nl80211_iftype type); | |
1289 | void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); | |
1290 | void ieee80211_remove_interfaces(struct ieee80211_local *local); | |
1291 | void ieee80211_recalc_idle(struct ieee80211_local *local); | |
1292 | void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, | |
1293 | const int offset); | |
1294 | ||
1295 | static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) | |
1296 | { | |
1297 | return test_bit(SDATA_STATE_RUNNING, &sdata->state); | |
1298 | } | |
1299 | ||
1300 | /* tx handling */ | |
1301 | void ieee80211_clear_tx_pending(struct ieee80211_local *local); | |
1302 | void ieee80211_tx_pending(unsigned long data); | |
1303 | netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, | |
1304 | struct net_device *dev); | |
1305 | netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, | |
1306 | struct net_device *dev); | |
1307 | ||
1308 | /* HT */ | |
1309 | void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, | |
1310 | struct ieee80211_sta_ht_cap *ht_cap); | |
1311 | void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, | |
1312 | struct ieee80211_supported_band *sband, | |
1313 | struct ieee80211_ht_cap *ht_cap_ie, | |
1314 | struct ieee80211_sta_ht_cap *ht_cap); | |
1315 | void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, | |
1316 | const u8 *da, u16 tid, | |
1317 | u16 initiator, u16 reason_code); | |
1318 | int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, | |
1319 | enum ieee80211_smps_mode smps, const u8 *da, | |
1320 | const u8 *bssid); | |
1321 | void ieee80211_request_smps_work(struct work_struct *work); | |
1322 | ||
1323 | void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, | |
1324 | u16 initiator, u16 reason, bool stop); | |
1325 | void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, | |
1326 | u16 initiator, u16 reason, bool stop); | |
1327 | void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx); | |
1328 | void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, | |
1329 | struct sta_info *sta, | |
1330 | struct ieee80211_mgmt *mgmt, size_t len); | |
1331 | void ieee80211_process_addba_resp(struct ieee80211_local *local, | |
1332 | struct sta_info *sta, | |
1333 | struct ieee80211_mgmt *mgmt, | |
1334 | size_t len); | |
1335 | void ieee80211_process_addba_request(struct ieee80211_local *local, | |
1336 | struct sta_info *sta, | |
1337 | struct ieee80211_mgmt *mgmt, | |
1338 | size_t len); | |
1339 | ||
1340 | int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, | |
1341 | enum ieee80211_back_parties initiator, | |
1342 | bool tx); | |
1343 | int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, | |
1344 | enum ieee80211_back_parties initiator, | |
1345 | bool tx); | |
1346 | void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid); | |
1347 | void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid); | |
1348 | void ieee80211_ba_session_work(struct work_struct *work); | |
1349 | void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); | |
1350 | void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); | |
1351 | ||
1352 | /* Spectrum management */ | |
1353 | void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, | |
1354 | struct ieee80211_mgmt *mgmt, | |
1355 | size_t len); | |
1356 | ||
1357 | /* Suspend/resume and hw reconfiguration */ | |
1358 | int ieee80211_reconfig(struct ieee80211_local *local); | |
1359 | void ieee80211_stop_device(struct ieee80211_local *local); | |
1360 | ||
1361 | #ifdef CONFIG_PM | |
1362 | int __ieee80211_suspend(struct ieee80211_hw *hw, | |
1363 | struct cfg80211_wowlan *wowlan); | |
1364 | ||
1365 | static inline int __ieee80211_resume(struct ieee80211_hw *hw) | |
1366 | { | |
1367 | struct ieee80211_local *local = hw_to_local(hw); | |
1368 | ||
1369 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), | |
1370 | "%s: resume with hardware scan still in progress\n", | |
1371 | wiphy_name(hw->wiphy)); | |
1372 | ||
1373 | return ieee80211_reconfig(hw_to_local(hw)); | |
1374 | } | |
1375 | #else | |
1376 | static inline int __ieee80211_suspend(struct ieee80211_hw *hw, | |
1377 | struct cfg80211_wowlan *wowlan) | |
1378 | { | |
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | static inline int __ieee80211_resume(struct ieee80211_hw *hw) | |
1383 | { | |
1384 | return 0; | |
1385 | } | |
1386 | #endif | |
1387 | ||
1388 | /* utility functions/constants */ | |
1389 | extern void *mac80211_wiphy_privid; /* for wiphy privid */ | |
1390 | u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, | |
1391 | enum nl80211_iftype type); | |
1392 | int ieee80211_frame_duration(enum ieee80211_band band, size_t len, | |
1393 | int rate, int erp, int short_preamble); | |
1394 | void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, | |
1395 | struct ieee80211_hdr *hdr, const u8 *tsc, | |
1396 | gfp_t gfp); | |
1397 | void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, | |
1398 | bool bss_notify); | |
1399 | void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); | |
1400 | ||
1401 | void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, | |
1402 | struct sk_buff *skb, int tid); | |
1403 | static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, | |
1404 | struct sk_buff *skb) | |
1405 | { | |
1406 | /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ | |
1407 | ieee80211_tx_skb_tid(sdata, skb, 7); | |
1408 | } | |
1409 | ||
1410 | void ieee802_11_parse_elems(u8 *start, size_t len, | |
1411 | struct ieee802_11_elems *elems); | |
1412 | u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, | |
1413 | struct ieee802_11_elems *elems, | |
1414 | u64 filter, u32 crc); | |
1415 | u32 ieee80211_mandatory_rates(struct ieee80211_local *local, | |
1416 | enum ieee80211_band band); | |
1417 | ||
1418 | void ieee80211_dynamic_ps_enable_work(struct work_struct *work); | |
1419 | void ieee80211_dynamic_ps_disable_work(struct work_struct *work); | |
1420 | void ieee80211_dynamic_ps_timer(unsigned long data); | |
1421 | void ieee80211_send_nullfunc(struct ieee80211_local *local, | |
1422 | struct ieee80211_sub_if_data *sdata, | |
1423 | int powersave); | |
1424 | void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, | |
1425 | struct ieee80211_hdr *hdr); | |
1426 | void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, | |
1427 | struct ieee80211_hdr *hdr, bool ack); | |
1428 | void ieee80211_beacon_connection_loss_work(struct work_struct *work); | |
1429 | ||
1430 | void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, | |
1431 | enum queue_stop_reason reason); | |
1432 | void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, | |
1433 | enum queue_stop_reason reason); | |
1434 | void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, | |
1435 | enum queue_stop_reason reason); | |
1436 | void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, | |
1437 | enum queue_stop_reason reason); | |
1438 | void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue); | |
1439 | void ieee80211_add_pending_skb(struct ieee80211_local *local, | |
1440 | struct sk_buff *skb); | |
1441 | void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, | |
1442 | struct sk_buff_head *skbs, | |
1443 | void (*fn)(void *data), void *data); | |
1444 | static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local, | |
1445 | struct sk_buff_head *skbs) | |
1446 | { | |
1447 | ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL); | |
1448 | } | |
1449 | ||
1450 | void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, | |
1451 | u16 transaction, u16 auth_alg, | |
1452 | u8 *extra, size_t extra_len, const u8 *bssid, | |
1453 | const u8 *da, const u8 *key, u8 key_len, u8 key_idx); | |
1454 | int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, | |
1455 | const u8 *ie, size_t ie_len, | |
1456 | enum ieee80211_band band, u32 rate_mask, | |
1457 | u8 channel); | |
1458 | struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, | |
1459 | u8 *dst, u32 ratemask, | |
1460 | const u8 *ssid, size_t ssid_len, | |
1461 | const u8 *ie, size_t ie_len, | |
1462 | bool directed); | |
1463 | void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, | |
1464 | const u8 *ssid, size_t ssid_len, | |
1465 | const u8 *ie, size_t ie_len, | |
1466 | u32 ratemask, bool directed, bool no_cck); | |
1467 | ||
1468 | void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, | |
1469 | const size_t supp_rates_len, | |
1470 | const u8 *supp_rates); | |
1471 | u32 ieee80211_sta_get_rates(struct ieee80211_local *local, | |
1472 | struct ieee802_11_elems *elems, | |
1473 | enum ieee80211_band band, u32 *basic_rates); | |
1474 | int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, | |
1475 | enum ieee80211_smps_mode smps_mode); | |
1476 | void ieee80211_recalc_smps(struct ieee80211_local *local); | |
1477 | ||
1478 | size_t ieee80211_ie_split(const u8 *ies, size_t ielen, | |
1479 | const u8 *ids, int n_ids, size_t offset); | |
1480 | size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); | |
1481 | u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, | |
1482 | u16 cap); | |
1483 | u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, | |
1484 | struct ieee80211_channel *channel, | |
1485 | enum nl80211_channel_type channel_type, | |
1486 | u16 prot_mode); | |
1487 | u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, | |
1488 | u32 cap); | |
1489 | int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, | |
1490 | struct sk_buff *skb, bool need_basic); | |
1491 | int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, | |
1492 | struct sk_buff *skb, bool need_basic); | |
1493 | ||
1494 | /* channel management */ | |
1495 | enum ieee80211_chan_mode { | |
1496 | CHAN_MODE_UNDEFINED, | |
1497 | CHAN_MODE_HOPPING, | |
1498 | CHAN_MODE_FIXED, | |
1499 | }; | |
1500 | ||
1501 | enum ieee80211_chan_mode | |
1502 | ieee80211_get_channel_mode(struct ieee80211_local *local, | |
1503 | struct ieee80211_sub_if_data *ignore); | |
1504 | bool ieee80211_set_channel_type(struct ieee80211_local *local, | |
1505 | struct ieee80211_sub_if_data *sdata, | |
1506 | enum nl80211_channel_type chantype); | |
1507 | enum nl80211_channel_type | |
1508 | ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper); | |
1509 | ||
1510 | #ifdef CONFIG_MAC80211_NOINLINE | |
1511 | #define debug_noinline noinline | |
1512 | #else | |
1513 | #define debug_noinline | |
1514 | #endif | |
1515 | ||
1516 | #endif /* IEEE80211_I_H */ |