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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 | /* power level hasn't been configured (or set to automatic) */ |
60 | #define IEEE80211_UNSET_POWER_LEVEL INT_MIN |
61 | |
62 | /* |
63 | * Some APs experience problems when working with U-APSD. Decrease the |
64 | * probability of that happening by using legacy mode for all ACs but VO. |
65 | * The AP that caused us trouble was a Cisco 4410N. It ignores our |
66 | * setting, and always treats non-VO ACs as legacy. |
67 | */ |
68 | #define IEEE80211_DEFAULT_UAPSD_QUEUES \ |
69 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VO |
70 | |
71 | #define IEEE80211_DEFAULT_MAX_SP_LEN \ |
72 | IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL |
73 | |
74 | #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */) |
75 | |
76 | struct ieee80211_fragment_entry { |
77 | unsigned long first_frag_time; |
78 | unsigned int seq; |
79 | unsigned int rx_queue; |
80 | unsigned int last_frag; |
81 | unsigned int extra_len; |
82 | struct sk_buff_head skb_list; |
83 | int ccmp; /* Whether fragments were encrypted with CCMP */ |
84 | u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ |
85 | }; |
86 | |
87 | |
88 | struct ieee80211_bss { |
89 | u32 device_ts_beacon, device_ts_presp; |
90 | |
91 | bool wmm_used; |
92 | bool uapsd_supported; |
93 | |
94 | #define IEEE80211_MAX_SUPP_RATES 32 |
95 | u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; |
96 | size_t supp_rates_len; |
97 | |
98 | /* |
99 | * During association, we save an ERP value from a probe response so |
100 | * that we can feed ERP info to the driver when handling the |
101 | * association completes. these fields probably won't be up-to-date |
102 | * otherwise, you probably don't want to use them. |
103 | */ |
104 | bool has_erp_value; |
105 | u8 erp_value; |
106 | |
107 | /* Keep track of the corruption of the last beacon/probe response. */ |
108 | u8 corrupt_data; |
109 | |
110 | /* Keep track of what bits of information we have valid info for. */ |
111 | u8 valid_data; |
112 | }; |
113 | |
114 | /** |
115 | * enum ieee80211_corrupt_data_flags - BSS data corruption flags |
116 | * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted |
117 | * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted |
118 | * |
119 | * These are bss flags that are attached to a bss in the |
120 | * @corrupt_data field of &struct ieee80211_bss. |
121 | */ |
122 | enum ieee80211_bss_corrupt_data_flags { |
123 | IEEE80211_BSS_CORRUPT_BEACON = BIT(0), |
124 | IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) |
125 | }; |
126 | |
127 | /** |
128 | * enum ieee80211_valid_data_flags - BSS valid data flags |
129 | * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE |
130 | * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE |
131 | * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE |
132 | * |
133 | * These are bss flags that are attached to a bss in the |
134 | * @valid_data field of &struct ieee80211_bss. They show which parts |
135 | * of the data structure were recieved as a result of an un-corrupted |
136 | * beacon/probe response. |
137 | */ |
138 | enum ieee80211_bss_valid_data_flags { |
139 | IEEE80211_BSS_VALID_WMM = BIT(1), |
140 | IEEE80211_BSS_VALID_RATES = BIT(2), |
141 | IEEE80211_BSS_VALID_ERP = BIT(3) |
142 | }; |
143 | |
144 | typedef unsigned __bitwise__ ieee80211_tx_result; |
145 | #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) |
146 | #define TX_DROP ((__force ieee80211_tx_result) 1u) |
147 | #define TX_QUEUED ((__force ieee80211_tx_result) 2u) |
148 | |
149 | #define IEEE80211_TX_UNICAST BIT(1) |
150 | #define IEEE80211_TX_PS_BUFFERED BIT(2) |
151 | |
152 | struct ieee80211_tx_data { |
153 | struct sk_buff *skb; |
154 | struct sk_buff_head skbs; |
155 | struct ieee80211_local *local; |
156 | struct ieee80211_sub_if_data *sdata; |
157 | struct sta_info *sta; |
158 | struct ieee80211_key *key; |
159 | |
160 | unsigned int flags; |
161 | }; |
162 | |
163 | |
164 | typedef unsigned __bitwise__ ieee80211_rx_result; |
165 | #define RX_CONTINUE ((__force ieee80211_rx_result) 0u) |
166 | #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) |
167 | #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) |
168 | #define RX_QUEUED ((__force ieee80211_rx_result) 3u) |
169 | |
170 | /** |
171 | * enum ieee80211_packet_rx_flags - packet RX flags |
172 | * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed |
173 | * (incl. multicast frames) |
174 | * @IEEE80211_RX_FRAGMENTED: fragmented frame |
175 | * @IEEE80211_RX_AMSDU: a-MSDU packet |
176 | * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed |
177 | * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering |
178 | * |
179 | * These are per-frame flags that are attached to a frame in the |
180 | * @rx_flags field of &struct ieee80211_rx_status. |
181 | */ |
182 | enum ieee80211_packet_rx_flags { |
183 | IEEE80211_RX_RA_MATCH = BIT(1), |
184 | IEEE80211_RX_FRAGMENTED = BIT(2), |
185 | IEEE80211_RX_AMSDU = BIT(3), |
186 | IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), |
187 | IEEE80211_RX_DEFERRED_RELEASE = BIT(5), |
188 | }; |
189 | |
190 | /** |
191 | * enum ieee80211_rx_flags - RX data flags |
192 | * |
193 | * @IEEE80211_RX_CMNTR: received on cooked monitor already |
194 | * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported |
195 | * to cfg80211_report_obss_beacon(). |
196 | * |
197 | * These flags are used across handling multiple interfaces |
198 | * for a single frame. |
199 | */ |
200 | enum ieee80211_rx_flags { |
201 | IEEE80211_RX_CMNTR = BIT(0), |
202 | IEEE80211_RX_BEACON_REPORTED = BIT(1), |
203 | }; |
204 | |
205 | struct ieee80211_rx_data { |
206 | struct sk_buff *skb; |
207 | struct ieee80211_local *local; |
208 | struct ieee80211_sub_if_data *sdata; |
209 | struct sta_info *sta; |
210 | struct ieee80211_key *key; |
211 | |
212 | unsigned int flags; |
213 | |
214 | /* |
215 | * Index into sequence numbers array, 0..16 |
216 | * since the last (16) is used for non-QoS, |
217 | * will be 16 on non-QoS frames. |
218 | */ |
219 | int seqno_idx; |
220 | |
221 | /* |
222 | * Index into the security IV/PN arrays, 0..16 |
223 | * since the last (16) is used for CCMP-encrypted |
224 | * management frames, will be set to 16 on mgmt |
225 | * frames and 0 on non-QoS frames. |
226 | */ |
227 | int security_idx; |
228 | |
229 | u32 tkip_iv32; |
230 | u16 tkip_iv16; |
231 | }; |
232 | |
233 | struct beacon_data { |
234 | u8 *head, *tail; |
235 | int head_len, tail_len; |
236 | struct rcu_head rcu_head; |
237 | }; |
238 | |
239 | struct probe_resp { |
240 | struct rcu_head rcu_head; |
241 | int len; |
242 | u8 data[0]; |
243 | }; |
244 | |
245 | struct ps_data { |
246 | /* yes, this looks ugly, but guarantees that we can later use |
247 | * bitmap_empty :) |
248 | * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ |
249 | u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; |
250 | struct sk_buff_head bc_buf; |
251 | atomic_t num_sta_ps; /* number of stations in PS mode */ |
252 | int dtim_count; |
253 | bool dtim_bc_mc; |
254 | }; |
255 | |
256 | struct ieee80211_if_ap { |
257 | struct beacon_data __rcu *beacon; |
258 | struct probe_resp __rcu *probe_resp; |
259 | |
260 | struct list_head vlans; |
261 | |
262 | struct ps_data ps; |
263 | atomic_t num_mcast_sta; /* number of stations receiving multicast */ |
264 | }; |
265 | |
266 | struct ieee80211_if_wds { |
267 | struct sta_info *sta; |
268 | u8 remote_addr[ETH_ALEN]; |
269 | }; |
270 | |
271 | struct ieee80211_if_vlan { |
272 | struct list_head list; |
273 | |
274 | /* used for all tx if the VLAN is configured to 4-addr mode */ |
275 | struct sta_info __rcu *sta; |
276 | }; |
277 | |
278 | struct mesh_stats { |
279 | __u32 fwded_mcast; /* Mesh forwarded multicast frames */ |
280 | __u32 fwded_unicast; /* Mesh forwarded unicast frames */ |
281 | __u32 fwded_frames; /* Mesh total forwarded frames */ |
282 | __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ |
283 | __u32 dropped_frames_no_route; /* Not transmitted, no route found */ |
284 | __u32 dropped_frames_congestion;/* Not forwarded due to congestion */ |
285 | }; |
286 | |
287 | #define PREQ_Q_F_START 0x1 |
288 | #define PREQ_Q_F_REFRESH 0x2 |
289 | struct mesh_preq_queue { |
290 | struct list_head list; |
291 | u8 dst[ETH_ALEN]; |
292 | u8 flags; |
293 | }; |
294 | |
295 | #if HZ/100 == 0 |
296 | #define IEEE80211_ROC_MIN_LEFT 1 |
297 | #else |
298 | #define IEEE80211_ROC_MIN_LEFT (HZ/100) |
299 | #endif |
300 | |
301 | struct ieee80211_roc_work { |
302 | struct list_head list; |
303 | struct list_head dependents; |
304 | |
305 | struct delayed_work work; |
306 | |
307 | struct ieee80211_sub_if_data *sdata; |
308 | |
309 | struct ieee80211_channel *chan; |
310 | |
311 | bool started, abort, hw_begun, notified; |
312 | bool to_be_freed; |
313 | |
314 | unsigned long hw_start_time; |
315 | |
316 | u32 duration, req_duration; |
317 | struct sk_buff *frame; |
318 | u64 cookie, mgmt_tx_cookie; |
319 | }; |
320 | |
321 | /* flags used in struct ieee80211_if_managed.flags */ |
322 | enum ieee80211_sta_flags { |
323 | IEEE80211_STA_BEACON_POLL = BIT(0), |
324 | IEEE80211_STA_CONNECTION_POLL = BIT(1), |
325 | IEEE80211_STA_CONTROL_PORT = BIT(2), |
326 | IEEE80211_STA_DISABLE_HT = BIT(4), |
327 | IEEE80211_STA_CSA_RECEIVED = BIT(5), |
328 | IEEE80211_STA_MFP_ENABLED = BIT(6), |
329 | IEEE80211_STA_UAPSD_ENABLED = BIT(7), |
330 | IEEE80211_STA_NULLFUNC_ACKED = BIT(8), |
331 | IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9), |
332 | IEEE80211_STA_DISABLE_40MHZ = BIT(10), |
333 | IEEE80211_STA_DISABLE_VHT = BIT(11), |
334 | IEEE80211_STA_DISABLE_80P80MHZ = BIT(12), |
335 | IEEE80211_STA_DISABLE_160MHZ = BIT(13), |
336 | }; |
337 | |
338 | struct ieee80211_mgd_auth_data { |
339 | struct cfg80211_bss *bss; |
340 | unsigned long timeout; |
341 | int tries; |
342 | u16 algorithm, expected_transaction; |
343 | |
344 | u8 key[WLAN_KEY_LEN_WEP104]; |
345 | u8 key_len, key_idx; |
346 | bool done; |
347 | bool timeout_started; |
348 | |
349 | u16 sae_trans, sae_status; |
350 | size_t data_len; |
351 | u8 data[]; |
352 | }; |
353 | |
354 | struct ieee80211_mgd_assoc_data { |
355 | struct cfg80211_bss *bss; |
356 | const u8 *supp_rates; |
357 | |
358 | unsigned long timeout; |
359 | int tries; |
360 | |
361 | u16 capability; |
362 | u8 prev_bssid[ETH_ALEN]; |
363 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
364 | u8 ssid_len; |
365 | u8 supp_rates_len; |
366 | bool wmm, uapsd; |
367 | bool have_beacon, need_beacon; |
368 | bool synced; |
369 | bool timeout_started; |
370 | |
371 | u8 ap_ht_param; |
372 | |
373 | struct ieee80211_vht_cap ap_vht_cap; |
374 | |
375 | size_t ie_len; |
376 | u8 ie[]; |
377 | }; |
378 | |
379 | struct ieee80211_if_managed { |
380 | struct timer_list timer; |
381 | struct timer_list conn_mon_timer; |
382 | struct timer_list bcn_mon_timer; |
383 | struct timer_list chswitch_timer; |
384 | struct work_struct monitor_work; |
385 | struct work_struct chswitch_work; |
386 | struct work_struct beacon_connection_loss_work; |
387 | struct work_struct csa_connection_drop_work; |
388 | |
389 | unsigned long beacon_timeout; |
390 | unsigned long probe_timeout; |
391 | int probe_send_count; |
392 | bool nullfunc_failed; |
393 | bool connection_loss; |
394 | |
395 | struct mutex mtx; |
396 | struct cfg80211_bss *associated; |
397 | struct ieee80211_mgd_auth_data *auth_data; |
398 | struct ieee80211_mgd_assoc_data *assoc_data; |
399 | |
400 | u8 bssid[ETH_ALEN]; |
401 | |
402 | u16 aid; |
403 | |
404 | unsigned long timers_running; /* used for quiesce/restart */ |
405 | bool powersave; /* powersave requested for this iface */ |
406 | bool broken_ap; /* AP is broken -- turn off powersave */ |
407 | u8 dtim_period; |
408 | enum ieee80211_smps_mode req_smps, /* requested smps mode */ |
409 | driver_smps_mode; /* smps mode request */ |
410 | |
411 | struct work_struct request_smps_work; |
412 | |
413 | unsigned int flags; |
414 | |
415 | bool beacon_crc_valid; |
416 | u32 beacon_crc; |
417 | |
418 | bool status_acked; |
419 | bool status_received; |
420 | __le16 status_fc; |
421 | |
422 | enum { |
423 | IEEE80211_MFP_DISABLED, |
424 | IEEE80211_MFP_OPTIONAL, |
425 | IEEE80211_MFP_REQUIRED |
426 | } mfp; /* management frame protection */ |
427 | |
428 | /* |
429 | * Bitmask of enabled u-apsd queues, |
430 | * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association |
431 | * to take effect. |
432 | */ |
433 | unsigned int uapsd_queues; |
434 | |
435 | /* |
436 | * Maximum number of buffered frames AP can deliver during a |
437 | * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. |
438 | * Needs a new association to take effect. |
439 | */ |
440 | unsigned int uapsd_max_sp_len; |
441 | |
442 | int wmm_last_param_set; |
443 | |
444 | u8 use_4addr; |
445 | |
446 | u8 p2p_noa_index; |
447 | |
448 | /* Signal strength from the last Beacon frame in the current BSS. */ |
449 | int last_beacon_signal; |
450 | |
451 | /* |
452 | * Weighted average of the signal strength from Beacon frames in the |
453 | * current BSS. This is in units of 1/16 of the signal unit to maintain |
454 | * accuracy and to speed up calculations, i.e., the value need to be |
455 | * divided by 16 to get the actual value. |
456 | */ |
457 | int ave_beacon_signal; |
458 | |
459 | /* |
460 | * Number of Beacon frames used in ave_beacon_signal. This can be used |
461 | * to avoid generating less reliable cqm events that would be based |
462 | * only on couple of received frames. |
463 | */ |
464 | unsigned int count_beacon_signal; |
465 | |
466 | /* |
467 | * Last Beacon frame signal strength average (ave_beacon_signal / 16) |
468 | * that triggered a cqm event. 0 indicates that no event has been |
469 | * generated for the current association. |
470 | */ |
471 | int last_cqm_event_signal; |
472 | |
473 | /* |
474 | * State variables for keeping track of RSSI of the AP currently |
475 | * connected to and informing driver when RSSI has gone |
476 | * below/above a certain threshold. |
477 | */ |
478 | int rssi_min_thold, rssi_max_thold; |
479 | int last_ave_beacon_signal; |
480 | |
481 | struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ |
482 | struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ |
483 | }; |
484 | |
485 | struct ieee80211_if_ibss { |
486 | struct timer_list timer; |
487 | |
488 | struct mutex mtx; |
489 | |
490 | unsigned long last_scan_completed; |
491 | |
492 | u32 basic_rates; |
493 | |
494 | bool timer_running; |
495 | |
496 | bool fixed_bssid; |
497 | bool fixed_channel; |
498 | bool privacy; |
499 | |
500 | bool control_port; |
501 | unsigned int auth_frame_registrations; |
502 | |
503 | u8 bssid[ETH_ALEN] __aligned(2); |
504 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
505 | u8 ssid_len, ie_len; |
506 | u8 *ie; |
507 | struct ieee80211_channel *channel; |
508 | enum nl80211_channel_type channel_type; |
509 | |
510 | unsigned long ibss_join_req; |
511 | /* probe response/beacon for IBSS */ |
512 | struct sk_buff __rcu *presp; |
513 | struct sk_buff *skb; |
514 | |
515 | spinlock_t incomplete_lock; |
516 | struct list_head incomplete_stations; |
517 | |
518 | enum { |
519 | IEEE80211_IBSS_MLME_SEARCH, |
520 | IEEE80211_IBSS_MLME_JOINED, |
521 | } state; |
522 | }; |
523 | |
524 | /** |
525 | * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface |
526 | * |
527 | * these declarations define the interface, which enables |
528 | * vendor-specific mesh synchronization |
529 | * |
530 | */ |
531 | struct ieee802_11_elems; |
532 | struct ieee80211_mesh_sync_ops { |
533 | void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, |
534 | u16 stype, |
535 | struct ieee80211_mgmt *mgmt, |
536 | struct ieee802_11_elems *elems, |
537 | struct ieee80211_rx_status *rx_status); |
538 | void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata); |
539 | /* add other framework functions here */ |
540 | }; |
541 | |
542 | struct ieee80211_if_mesh { |
543 | struct timer_list housekeeping_timer; |
544 | struct timer_list mesh_path_timer; |
545 | struct timer_list mesh_path_root_timer; |
546 | |
547 | unsigned long timers_running; |
548 | |
549 | unsigned long wrkq_flags; |
550 | |
551 | u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; |
552 | size_t mesh_id_len; |
553 | /* Active Path Selection Protocol Identifier */ |
554 | u8 mesh_pp_id; |
555 | /* Active Path Selection Metric Identifier */ |
556 | u8 mesh_pm_id; |
557 | /* Congestion Control Mode Identifier */ |
558 | u8 mesh_cc_id; |
559 | /* Synchronization Protocol Identifier */ |
560 | u8 mesh_sp_id; |
561 | /* Authentication Protocol Identifier */ |
562 | u8 mesh_auth_id; |
563 | /* Local mesh Sequence Number */ |
564 | u32 sn; |
565 | /* Last used PREQ ID */ |
566 | u32 preq_id; |
567 | atomic_t mpaths; |
568 | /* Timestamp of last SN update */ |
569 | unsigned long last_sn_update; |
570 | /* Time when it's ok to send next PERR */ |
571 | unsigned long next_perr; |
572 | /* Timestamp of last PREQ sent */ |
573 | unsigned long last_preq; |
574 | struct mesh_rmc *rmc; |
575 | spinlock_t mesh_preq_queue_lock; |
576 | struct mesh_preq_queue preq_queue; |
577 | int preq_queue_len; |
578 | struct mesh_stats mshstats; |
579 | struct mesh_config mshcfg; |
580 | atomic_t estab_plinks; |
581 | u32 mesh_seqnum; |
582 | bool accepting_plinks; |
583 | int num_gates; |
584 | struct beacon_data __rcu *beacon; |
585 | /* just protects beacon updates for now */ |
586 | struct mutex mtx; |
587 | const u8 *ie; |
588 | u8 ie_len; |
589 | enum { |
590 | IEEE80211_MESH_SEC_NONE = 0x0, |
591 | IEEE80211_MESH_SEC_AUTHED = 0x1, |
592 | IEEE80211_MESH_SEC_SECURED = 0x2, |
593 | } security; |
594 | /* Extensible Synchronization Framework */ |
595 | const struct ieee80211_mesh_sync_ops *sync_ops; |
596 | s64 sync_offset_clockdrift_max; |
597 | spinlock_t sync_offset_lock; |
598 | bool adjusting_tbtt; |
599 | /* mesh power save */ |
600 | enum nl80211_mesh_power_mode nonpeer_pm; |
601 | int ps_peers_light_sleep; |
602 | int ps_peers_deep_sleep; |
603 | struct ps_data ps; |
604 | }; |
605 | |
606 | #ifdef CONFIG_MAC80211_MESH |
607 | #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ |
608 | do { (msh)->mshstats.name++; } while (0) |
609 | #else |
610 | #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ |
611 | do { } while (0) |
612 | #endif |
613 | |
614 | /** |
615 | * enum ieee80211_sub_if_data_flags - virtual interface flags |
616 | * |
617 | * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets |
618 | * @IEEE80211_SDATA_PROMISC: interface is promisc |
619 | * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode |
620 | * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between |
621 | * associated stations and deliver multicast frames both |
622 | * back to wireless media and to the local net stack. |
623 | * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. |
624 | * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver |
625 | */ |
626 | enum ieee80211_sub_if_data_flags { |
627 | IEEE80211_SDATA_ALLMULTI = BIT(0), |
628 | IEEE80211_SDATA_PROMISC = BIT(1), |
629 | IEEE80211_SDATA_OPERATING_GMODE = BIT(2), |
630 | IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), |
631 | IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), |
632 | IEEE80211_SDATA_IN_DRIVER = BIT(5), |
633 | }; |
634 | |
635 | /** |
636 | * enum ieee80211_sdata_state_bits - virtual interface state bits |
637 | * @SDATA_STATE_RUNNING: virtual interface is up & running; this |
638 | * mirrors netif_running() but is separate for interface type |
639 | * change handling while the interface is up |
640 | * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel |
641 | * mode, so queues are stopped |
642 | * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due |
643 | * to offchannel, reset when offchannel returns |
644 | */ |
645 | enum ieee80211_sdata_state_bits { |
646 | SDATA_STATE_RUNNING, |
647 | SDATA_STATE_OFFCHANNEL, |
648 | SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, |
649 | }; |
650 | |
651 | /** |
652 | * enum ieee80211_chanctx_mode - channel context configuration mode |
653 | * |
654 | * @IEEE80211_CHANCTX_SHARED: channel context may be used by |
655 | * multiple interfaces |
656 | * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used |
657 | * only by a single interface. This can be used for example for |
658 | * non-fixed channel IBSS. |
659 | */ |
660 | enum ieee80211_chanctx_mode { |
661 | IEEE80211_CHANCTX_SHARED, |
662 | IEEE80211_CHANCTX_EXCLUSIVE |
663 | }; |
664 | |
665 | struct ieee80211_chanctx { |
666 | struct list_head list; |
667 | struct rcu_head rcu_head; |
668 | |
669 | enum ieee80211_chanctx_mode mode; |
670 | int refcount; |
671 | bool driver_present; |
672 | |
673 | struct ieee80211_chanctx_conf conf; |
674 | }; |
675 | |
676 | struct ieee80211_sub_if_data { |
677 | struct list_head list; |
678 | |
679 | struct wireless_dev wdev; |
680 | |
681 | /* keys */ |
682 | struct list_head key_list; |
683 | |
684 | /* count for keys needing tailroom space allocation */ |
685 | int crypto_tx_tailroom_needed_cnt; |
686 | |
687 | struct net_device *dev; |
688 | struct ieee80211_local *local; |
689 | |
690 | unsigned int flags; |
691 | |
692 | unsigned long state; |
693 | |
694 | int drop_unencrypted; |
695 | |
696 | char name[IFNAMSIZ]; |
697 | |
698 | /* Fragment table for host-based reassembly */ |
699 | struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; |
700 | unsigned int fragment_next; |
701 | |
702 | /* TID bitmap for NoAck policy */ |
703 | u16 noack_map; |
704 | |
705 | /* bit field of ACM bits (BIT(802.1D tag)) */ |
706 | u8 wmm_acm; |
707 | |
708 | struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; |
709 | struct ieee80211_key __rcu *default_unicast_key; |
710 | struct ieee80211_key __rcu *default_multicast_key; |
711 | struct ieee80211_key __rcu *default_mgmt_key; |
712 | |
713 | u16 sequence_number; |
714 | __be16 control_port_protocol; |
715 | bool control_port_no_encrypt; |
716 | |
717 | struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; |
718 | |
719 | /* used to reconfigure hardware SM PS */ |
720 | struct work_struct recalc_smps; |
721 | |
722 | struct work_struct work; |
723 | struct sk_buff_head skb_queue; |
724 | |
725 | u8 needed_rx_chains; |
726 | enum ieee80211_smps_mode smps_mode; |
727 | |
728 | int user_power_level; /* in dBm */ |
729 | int ap_power_level; /* in dBm */ |
730 | |
731 | bool radar_required; |
732 | struct delayed_work dfs_cac_timer_work; |
733 | |
734 | /* |
735 | * AP this belongs to: self in AP mode and |
736 | * corresponding AP in VLAN mode, NULL for |
737 | * all others (might be needed later in IBSS) |
738 | */ |
739 | struct ieee80211_if_ap *bss; |
740 | |
741 | /* bitmap of allowed (non-MCS) rate indexes for rate control */ |
742 | u32 rc_rateidx_mask[IEEE80211_NUM_BANDS]; |
743 | u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN]; |
744 | |
745 | union { |
746 | struct ieee80211_if_ap ap; |
747 | struct ieee80211_if_wds wds; |
748 | struct ieee80211_if_vlan vlan; |
749 | struct ieee80211_if_managed mgd; |
750 | struct ieee80211_if_ibss ibss; |
751 | struct ieee80211_if_mesh mesh; |
752 | u32 mntr_flags; |
753 | } u; |
754 | |
755 | spinlock_t cleanup_stations_lock; |
756 | struct list_head cleanup_stations; |
757 | struct work_struct cleanup_stations_wk; |
758 | |
759 | #ifdef CONFIG_MAC80211_DEBUGFS |
760 | struct { |
761 | struct dentry *dir; |
762 | struct dentry *subdir_stations; |
763 | struct dentry *default_unicast_key; |
764 | struct dentry *default_multicast_key; |
765 | struct dentry *default_mgmt_key; |
766 | } debugfs; |
767 | #endif |
768 | |
769 | #ifdef CONFIG_PM |
770 | struct ieee80211_bss_conf suspend_bss_conf; |
771 | #endif |
772 | |
773 | /* must be last, dynamically sized area in this! */ |
774 | struct ieee80211_vif vif; |
775 | }; |
776 | |
777 | static inline |
778 | struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) |
779 | { |
780 | return container_of(p, struct ieee80211_sub_if_data, vif); |
781 | } |
782 | |
783 | static inline enum ieee80211_band |
784 | ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata) |
785 | { |
786 | enum ieee80211_band band = IEEE80211_BAND_2GHZ; |
787 | struct ieee80211_chanctx_conf *chanctx_conf; |
788 | |
789 | rcu_read_lock(); |
790 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
791 | if (!WARN_ON(!chanctx_conf)) |
792 | band = chanctx_conf->def.chan->band; |
793 | rcu_read_unlock(); |
794 | |
795 | return band; |
796 | } |
797 | |
798 | enum sdata_queue_type { |
799 | IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0, |
800 | IEEE80211_SDATA_QUEUE_AGG_START = 1, |
801 | IEEE80211_SDATA_QUEUE_AGG_STOP = 2, |
802 | }; |
803 | |
804 | enum { |
805 | IEEE80211_RX_MSG = 1, |
806 | IEEE80211_TX_STATUS_MSG = 2, |
807 | IEEE80211_EOSP_MSG = 3, |
808 | }; |
809 | |
810 | struct skb_eosp_msg_data { |
811 | u8 sta[ETH_ALEN], iface[ETH_ALEN]; |
812 | }; |
813 | |
814 | enum queue_stop_reason { |
815 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
816 | IEEE80211_QUEUE_STOP_REASON_PS, |
817 | IEEE80211_QUEUE_STOP_REASON_CSA, |
818 | IEEE80211_QUEUE_STOP_REASON_AGGREGATION, |
819 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
820 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
821 | IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, |
822 | }; |
823 | |
824 | #ifdef CONFIG_MAC80211_LEDS |
825 | struct tpt_led_trigger { |
826 | struct led_trigger trig; |
827 | char name[32]; |
828 | const struct ieee80211_tpt_blink *blink_table; |
829 | unsigned int blink_table_len; |
830 | struct timer_list timer; |
831 | unsigned long prev_traffic; |
832 | unsigned long tx_bytes, rx_bytes; |
833 | unsigned int active, want; |
834 | bool running; |
835 | }; |
836 | #endif |
837 | |
838 | /** |
839 | * mac80211 scan flags - currently active scan mode |
840 | * |
841 | * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as |
842 | * well be on the operating channel |
843 | * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to |
844 | * determine if we are on the operating channel or not |
845 | * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating |
846 | * channel. This should not interrupt normal traffic. |
847 | * @SCAN_COMPLETED: Set for our scan work function when the driver reported |
848 | * that the scan completed. |
849 | * @SCAN_ABORTED: Set for our scan work function when the driver reported |
850 | * a scan complete for an aborted scan. |
851 | */ |
852 | enum { |
853 | SCAN_SW_SCANNING, |
854 | SCAN_HW_SCANNING, |
855 | SCAN_ONCHANNEL_SCANNING, |
856 | SCAN_COMPLETED, |
857 | SCAN_ABORTED, |
858 | }; |
859 | |
860 | /** |
861 | * enum mac80211_scan_state - scan state machine states |
862 | * |
863 | * @SCAN_DECISION: Main entry point to the scan state machine, this state |
864 | * determines if we should keep on scanning or switch back to the |
865 | * operating channel |
866 | * @SCAN_SET_CHANNEL: Set the next channel to be scanned |
867 | * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses |
868 | * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to |
869 | * send out data |
870 | * @SCAN_RESUME: Resume the scan and scan the next channel |
871 | * @SCAN_ABORT: Abort the scan and go back to operating channel |
872 | */ |
873 | enum mac80211_scan_state { |
874 | SCAN_DECISION, |
875 | SCAN_SET_CHANNEL, |
876 | SCAN_SEND_PROBE, |
877 | SCAN_SUSPEND, |
878 | SCAN_RESUME, |
879 | SCAN_ABORT, |
880 | }; |
881 | |
882 | struct ieee80211_local { |
883 | /* embed the driver visible part. |
884 | * don't cast (use the static inlines below), but we keep |
885 | * it first anyway so they become a no-op */ |
886 | struct ieee80211_hw hw; |
887 | |
888 | const struct ieee80211_ops *ops; |
889 | |
890 | /* |
891 | * private workqueue to mac80211. mac80211 makes this accessible |
892 | * via ieee80211_queue_work() |
893 | */ |
894 | struct workqueue_struct *workqueue; |
895 | |
896 | unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; |
897 | /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ |
898 | spinlock_t queue_stop_reason_lock; |
899 | |
900 | int open_count; |
901 | int monitors, cooked_mntrs; |
902 | /* number of interfaces with corresponding FIF_ flags */ |
903 | int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, |
904 | fif_probe_req; |
905 | int probe_req_reg; |
906 | unsigned int filter_flags; /* FIF_* */ |
907 | |
908 | bool wiphy_ciphers_allocated; |
909 | |
910 | bool use_chanctx; |
911 | |
912 | /* protects the aggregated multicast list and filter calls */ |
913 | spinlock_t filter_lock; |
914 | |
915 | /* used for uploading changed mc list */ |
916 | struct work_struct reconfig_filter; |
917 | |
918 | /* aggregated multicast list */ |
919 | struct netdev_hw_addr_list mc_list; |
920 | |
921 | bool tim_in_locked_section; /* see ieee80211_beacon_get() */ |
922 | |
923 | /* |
924 | * suspended is true if we finished all the suspend _and_ we have |
925 | * not yet come up from resume. This is to be used by mac80211 |
926 | * to ensure driver sanity during suspend and mac80211's own |
927 | * sanity. It can eventually be used for WoW as well. |
928 | */ |
929 | bool suspended; |
930 | |
931 | /* |
932 | * Resuming is true while suspended, but when we're reprogramming the |
933 | * hardware -- at that time it's allowed to use ieee80211_queue_work() |
934 | * again even though some other parts of the stack are still suspended |
935 | * and we still drop received frames to avoid waking the stack. |
936 | */ |
937 | bool resuming; |
938 | |
939 | /* |
940 | * quiescing is true during the suspend process _only_ to |
941 | * ease timer cancelling etc. |
942 | */ |
943 | bool quiescing; |
944 | |
945 | /* device is started */ |
946 | bool started; |
947 | |
948 | /* device is during a HW reconfig */ |
949 | bool in_reconfig; |
950 | |
951 | /* wowlan is enabled -- don't reconfig on resume */ |
952 | bool wowlan; |
953 | |
954 | /* DFS/radar detection is enabled */ |
955 | bool radar_detect_enabled; |
956 | struct work_struct radar_detected_work; |
957 | |
958 | /* number of RX chains the hardware has */ |
959 | u8 rx_chains; |
960 | |
961 | int tx_headroom; /* required headroom for hardware/radiotap */ |
962 | |
963 | /* Tasklet and skb queue to process calls from IRQ mode. All frames |
964 | * added to skb_queue will be processed, but frames in |
965 | * skb_queue_unreliable may be dropped if the total length of these |
966 | * queues increases over the limit. */ |
967 | #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 |
968 | struct tasklet_struct tasklet; |
969 | struct sk_buff_head skb_queue; |
970 | struct sk_buff_head skb_queue_unreliable; |
971 | |
972 | spinlock_t rx_path_lock; |
973 | |
974 | /* Station data */ |
975 | /* |
976 | * The mutex only protects the list, hash table and |
977 | * counter, reads are done with RCU. |
978 | */ |
979 | struct mutex sta_mtx; |
980 | spinlock_t tim_lock; |
981 | unsigned long num_sta; |
982 | struct list_head sta_list; |
983 | struct sta_info __rcu *sta_hash[STA_HASH_SIZE]; |
984 | struct timer_list sta_cleanup; |
985 | int sta_generation; |
986 | |
987 | struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; |
988 | struct tasklet_struct tx_pending_tasklet; |
989 | |
990 | atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; |
991 | |
992 | /* number of interfaces with corresponding IFF_ flags */ |
993 | atomic_t iff_allmultis, iff_promiscs; |
994 | |
995 | struct rate_control_ref *rate_ctrl; |
996 | |
997 | struct crypto_cipher *wep_tx_tfm; |
998 | struct crypto_cipher *wep_rx_tfm; |
999 | u32 wep_iv; |
1000 | |
1001 | /* see iface.c */ |
1002 | struct list_head interfaces; |
1003 | struct mutex iflist_mtx; |
1004 | |
1005 | /* |
1006 | * Key mutex, protects sdata's key_list and sta_info's |
1007 | * key pointers (write access, they're RCU.) |
1008 | */ |
1009 | struct mutex key_mtx; |
1010 | |
1011 | /* mutex for scan and work locking */ |
1012 | struct mutex mtx; |
1013 | |
1014 | /* Scanning and BSS list */ |
1015 | unsigned long scanning; |
1016 | struct cfg80211_ssid scan_ssid; |
1017 | struct cfg80211_scan_request *int_scan_req; |
1018 | struct cfg80211_scan_request *scan_req, *hw_scan_req; |
1019 | struct ieee80211_channel *scan_channel; |
1020 | enum ieee80211_band hw_scan_band; |
1021 | int scan_channel_idx; |
1022 | int scan_ies_len; |
1023 | int hw_scan_ies_bufsize; |
1024 | |
1025 | struct work_struct sched_scan_stopped_work; |
1026 | struct ieee80211_sub_if_data __rcu *sched_scan_sdata; |
1027 | |
1028 | unsigned long leave_oper_channel_time; |
1029 | enum mac80211_scan_state next_scan_state; |
1030 | struct delayed_work scan_work; |
1031 | struct ieee80211_sub_if_data __rcu *scan_sdata; |
1032 | struct ieee80211_channel *csa_channel; |
1033 | /* For backward compatibility only -- do not use */ |
1034 | struct ieee80211_channel *_oper_channel; |
1035 | enum nl80211_channel_type _oper_channel_type; |
1036 | |
1037 | /* Temporary remain-on-channel for off-channel operations */ |
1038 | struct ieee80211_channel *tmp_channel; |
1039 | |
1040 | /* channel contexts */ |
1041 | struct list_head chanctx_list; |
1042 | struct mutex chanctx_mtx; |
1043 | |
1044 | /* SNMP counters */ |
1045 | /* dot11CountersTable */ |
1046 | u32 dot11TransmittedFragmentCount; |
1047 | u32 dot11MulticastTransmittedFrameCount; |
1048 | u32 dot11FailedCount; |
1049 | u32 dot11RetryCount; |
1050 | u32 dot11MultipleRetryCount; |
1051 | u32 dot11FrameDuplicateCount; |
1052 | u32 dot11ReceivedFragmentCount; |
1053 | u32 dot11MulticastReceivedFrameCount; |
1054 | u32 dot11TransmittedFrameCount; |
1055 | |
1056 | #ifdef CONFIG_MAC80211_LEDS |
1057 | int tx_led_counter, rx_led_counter; |
1058 | struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led; |
1059 | struct tpt_led_trigger *tpt_led_trigger; |
1060 | char tx_led_name[32], rx_led_name[32], |
1061 | assoc_led_name[32], radio_led_name[32]; |
1062 | #endif |
1063 | |
1064 | #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
1065 | /* TX/RX handler statistics */ |
1066 | unsigned int tx_handlers_drop; |
1067 | unsigned int tx_handlers_queued; |
1068 | unsigned int tx_handlers_drop_unencrypted; |
1069 | unsigned int tx_handlers_drop_fragment; |
1070 | unsigned int tx_handlers_drop_wep; |
1071 | unsigned int tx_handlers_drop_not_assoc; |
1072 | unsigned int tx_handlers_drop_unauth_port; |
1073 | unsigned int rx_handlers_drop; |
1074 | unsigned int rx_handlers_queued; |
1075 | unsigned int rx_handlers_drop_nullfunc; |
1076 | unsigned int rx_handlers_drop_defrag; |
1077 | unsigned int rx_handlers_drop_short; |
1078 | unsigned int tx_expand_skb_head; |
1079 | unsigned int tx_expand_skb_head_cloned; |
1080 | unsigned int rx_expand_skb_head; |
1081 | unsigned int rx_expand_skb_head2; |
1082 | unsigned int rx_handlers_fragments; |
1083 | unsigned int tx_status_drop; |
1084 | #define I802_DEBUG_INC(c) (c)++ |
1085 | #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ |
1086 | #define I802_DEBUG_INC(c) do { } while (0) |
1087 | #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ |
1088 | |
1089 | |
1090 | int total_ps_buffered; /* total number of all buffered unicast and |
1091 | * multicast packets for power saving stations |
1092 | */ |
1093 | |
1094 | bool pspolling; |
1095 | bool offchannel_ps_enabled; |
1096 | /* |
1097 | * PS can only be enabled when we have exactly one managed |
1098 | * interface (and monitors) in PS, this then points there. |
1099 | */ |
1100 | struct ieee80211_sub_if_data *ps_sdata; |
1101 | struct work_struct dynamic_ps_enable_work; |
1102 | struct work_struct dynamic_ps_disable_work; |
1103 | struct timer_list dynamic_ps_timer; |
1104 | struct notifier_block network_latency_notifier; |
1105 | struct notifier_block ifa_notifier; |
1106 | struct notifier_block ifa6_notifier; |
1107 | |
1108 | /* |
1109 | * The dynamic ps timeout configured from user space via WEXT - |
1110 | * this will override whatever chosen by mac80211 internally. |
1111 | */ |
1112 | int dynamic_ps_forced_timeout; |
1113 | |
1114 | int user_power_level; /* in dBm, for all interfaces */ |
1115 | |
1116 | enum ieee80211_smps_mode smps_mode; |
1117 | |
1118 | struct work_struct restart_work; |
1119 | |
1120 | #ifdef CONFIG_MAC80211_DEBUGFS |
1121 | struct local_debugfsdentries { |
1122 | struct dentry *rcdir; |
1123 | struct dentry *keys; |
1124 | } debugfs; |
1125 | #endif |
1126 | |
1127 | /* |
1128 | * Remain-on-channel support |
1129 | */ |
1130 | struct list_head roc_list; |
1131 | struct work_struct hw_roc_start, hw_roc_done; |
1132 | unsigned long hw_roc_start_time; |
1133 | u64 roc_cookie_counter; |
1134 | |
1135 | struct idr ack_status_frames; |
1136 | spinlock_t ack_status_lock; |
1137 | |
1138 | struct ieee80211_sub_if_data __rcu *p2p_sdata; |
1139 | |
1140 | /* dummy netdev for use w/ NAPI */ |
1141 | struct net_device napi_dev; |
1142 | |
1143 | struct napi_struct napi; |
1144 | |
1145 | /* virtual monitor interface */ |
1146 | struct ieee80211_sub_if_data __rcu *monitor_sdata; |
1147 | struct cfg80211_chan_def monitor_chandef; |
1148 | }; |
1149 | |
1150 | static inline struct ieee80211_sub_if_data * |
1151 | IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) |
1152 | { |
1153 | return netdev_priv(dev); |
1154 | } |
1155 | |
1156 | static inline struct ieee80211_sub_if_data * |
1157 | IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) |
1158 | { |
1159 | return container_of(wdev, struct ieee80211_sub_if_data, wdev); |
1160 | } |
1161 | |
1162 | /* this struct represents 802.11n's RA/TID combination */ |
1163 | struct ieee80211_ra_tid { |
1164 | u8 ra[ETH_ALEN]; |
1165 | u16 tid; |
1166 | }; |
1167 | |
1168 | /* Parsed Information Elements */ |
1169 | struct ieee802_11_elems { |
1170 | const u8 *ie_start; |
1171 | size_t total_len; |
1172 | |
1173 | /* pointers to IEs */ |
1174 | const u8 *ssid; |
1175 | const u8 *supp_rates; |
1176 | const u8 *fh_params; |
1177 | const u8 *ds_params; |
1178 | const u8 *cf_params; |
1179 | const struct ieee80211_tim_ie *tim; |
1180 | const u8 *ibss_params; |
1181 | const u8 *challenge; |
1182 | const u8 *rsn; |
1183 | const u8 *erp_info; |
1184 | const u8 *ext_supp_rates; |
1185 | const u8 *wmm_info; |
1186 | const u8 *wmm_param; |
1187 | const struct ieee80211_ht_cap *ht_cap_elem; |
1188 | const struct ieee80211_ht_operation *ht_operation; |
1189 | const struct ieee80211_vht_cap *vht_cap_elem; |
1190 | const struct ieee80211_vht_operation *vht_operation; |
1191 | const struct ieee80211_meshconf_ie *mesh_config; |
1192 | const u8 *mesh_id; |
1193 | const u8 *peering; |
1194 | const __le16 *awake_window; |
1195 | const u8 *preq; |
1196 | const u8 *prep; |
1197 | const u8 *perr; |
1198 | const struct ieee80211_rann_ie *rann; |
1199 | const struct ieee80211_channel_sw_ie *ch_switch_ie; |
1200 | const u8 *country_elem; |
1201 | const u8 *pwr_constr_elem; |
1202 | const u8 *quiet_elem; /* first quite element */ |
1203 | const u8 *timeout_int; |
1204 | const u8 *opmode_notif; |
1205 | |
1206 | /* length of them, respectively */ |
1207 | u8 ssid_len; |
1208 | u8 supp_rates_len; |
1209 | u8 fh_params_len; |
1210 | u8 ds_params_len; |
1211 | u8 cf_params_len; |
1212 | u8 tim_len; |
1213 | u8 ibss_params_len; |
1214 | u8 challenge_len; |
1215 | u8 rsn_len; |
1216 | u8 erp_info_len; |
1217 | u8 ext_supp_rates_len; |
1218 | u8 wmm_info_len; |
1219 | u8 wmm_param_len; |
1220 | u8 mesh_id_len; |
1221 | u8 peering_len; |
1222 | u8 preq_len; |
1223 | u8 prep_len; |
1224 | u8 perr_len; |
1225 | u8 country_elem_len; |
1226 | u8 quiet_elem_len; |
1227 | u8 num_of_quiet_elem; /* can be more the one */ |
1228 | u8 timeout_int_len; |
1229 | |
1230 | /* whether a parse error occurred while retrieving these elements */ |
1231 | bool parse_error; |
1232 | }; |
1233 | |
1234 | static inline struct ieee80211_local *hw_to_local( |
1235 | struct ieee80211_hw *hw) |
1236 | { |
1237 | return container_of(hw, struct ieee80211_local, hw); |
1238 | } |
1239 | |
1240 | |
1241 | static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) |
1242 | { |
1243 | return ether_addr_equal(raddr, addr) || |
1244 | is_broadcast_ether_addr(raddr); |
1245 | } |
1246 | |
1247 | static inline bool |
1248 | ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) |
1249 | { |
1250 | WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START && |
1251 | status->flag & RX_FLAG_MACTIME_END); |
1252 | return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END); |
1253 | } |
1254 | |
1255 | u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, |
1256 | struct ieee80211_rx_status *status, |
1257 | unsigned int mpdu_len, |
1258 | unsigned int mpdu_offset); |
1259 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); |
1260 | void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); |
1261 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
1262 | u32 changed); |
1263 | void ieee80211_configure_filter(struct ieee80211_local *local); |
1264 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); |
1265 | |
1266 | /* STA code */ |
1267 | void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); |
1268 | int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, |
1269 | struct cfg80211_auth_request *req); |
1270 | int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, |
1271 | struct cfg80211_assoc_request *req); |
1272 | int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, |
1273 | struct cfg80211_deauth_request *req); |
1274 | int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, |
1275 | struct cfg80211_disassoc_request *req); |
1276 | void ieee80211_send_pspoll(struct ieee80211_local *local, |
1277 | struct ieee80211_sub_if_data *sdata); |
1278 | void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency); |
1279 | void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); |
1280 | int ieee80211_max_network_latency(struct notifier_block *nb, |
1281 | unsigned long data, void *dummy); |
1282 | int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata); |
1283 | void |
1284 | ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, |
1285 | const struct ieee80211_channel_sw_ie *sw_elem, |
1286 | struct ieee80211_bss *bss, u64 timestamp); |
1287 | void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata); |
1288 | void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); |
1289 | void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); |
1290 | void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
1291 | struct sk_buff *skb); |
1292 | void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); |
1293 | void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); |
1294 | void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); |
1295 | void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, |
1296 | __le16 fc, bool acked); |
1297 | |
1298 | /* IBSS code */ |
1299 | void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); |
1300 | void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); |
1301 | void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, |
1302 | const u8 *bssid, const u8 *addr, u32 supp_rates); |
1303 | int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, |
1304 | struct cfg80211_ibss_params *params); |
1305 | int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); |
1306 | void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata); |
1307 | void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata); |
1308 | void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); |
1309 | void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
1310 | struct sk_buff *skb); |
1311 | |
1312 | /* mesh code */ |
1313 | void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); |
1314 | void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
1315 | struct sk_buff *skb); |
1316 | |
1317 | /* scan/BSS handling */ |
1318 | void ieee80211_scan_work(struct work_struct *work); |
1319 | int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, |
1320 | const u8 *ssid, u8 ssid_len, |
1321 | struct ieee80211_channel *chan); |
1322 | int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, |
1323 | struct cfg80211_scan_request *req); |
1324 | void ieee80211_scan_cancel(struct ieee80211_local *local); |
1325 | void ieee80211_run_deferred_scan(struct ieee80211_local *local); |
1326 | void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); |
1327 | |
1328 | void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); |
1329 | struct ieee80211_bss * |
1330 | ieee80211_bss_info_update(struct ieee80211_local *local, |
1331 | struct ieee80211_rx_status *rx_status, |
1332 | struct ieee80211_mgmt *mgmt, |
1333 | size_t len, |
1334 | struct ieee802_11_elems *elems, |
1335 | struct ieee80211_channel *channel); |
1336 | void ieee80211_rx_bss_put(struct ieee80211_local *local, |
1337 | struct ieee80211_bss *bss); |
1338 | |
1339 | /* scheduled scan handling */ |
1340 | int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, |
1341 | struct cfg80211_sched_scan_request *req); |
1342 | int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata); |
1343 | void ieee80211_sched_scan_stopped_work(struct work_struct *work); |
1344 | |
1345 | /* off-channel helpers */ |
1346 | void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); |
1347 | void ieee80211_offchannel_return(struct ieee80211_local *local); |
1348 | void ieee80211_roc_setup(struct ieee80211_local *local); |
1349 | void ieee80211_start_next_roc(struct ieee80211_local *local); |
1350 | void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata); |
1351 | void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free); |
1352 | void ieee80211_sw_roc_work(struct work_struct *work); |
1353 | void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc); |
1354 | |
1355 | /* interface handling */ |
1356 | int ieee80211_iface_init(void); |
1357 | void ieee80211_iface_exit(void); |
1358 | int ieee80211_if_add(struct ieee80211_local *local, const char *name, |
1359 | struct wireless_dev **new_wdev, enum nl80211_iftype type, |
1360 | struct vif_params *params); |
1361 | int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, |
1362 | enum nl80211_iftype type); |
1363 | void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); |
1364 | void ieee80211_remove_interfaces(struct ieee80211_local *local); |
1365 | u32 ieee80211_idle_off(struct ieee80211_local *local); |
1366 | void ieee80211_recalc_idle(struct ieee80211_local *local); |
1367 | void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, |
1368 | const int offset); |
1369 | int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); |
1370 | void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); |
1371 | |
1372 | bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata); |
1373 | void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata); |
1374 | |
1375 | static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) |
1376 | { |
1377 | return test_bit(SDATA_STATE_RUNNING, &sdata->state); |
1378 | } |
1379 | |
1380 | /* tx handling */ |
1381 | void ieee80211_clear_tx_pending(struct ieee80211_local *local); |
1382 | void ieee80211_tx_pending(unsigned long data); |
1383 | netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, |
1384 | struct net_device *dev); |
1385 | netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, |
1386 | struct net_device *dev); |
1387 | void ieee80211_purge_tx_queue(struct ieee80211_hw *hw, |
1388 | struct sk_buff_head *skbs); |
1389 | |
1390 | /* HT */ |
1391 | void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, |
1392 | struct ieee80211_sta_ht_cap *ht_cap); |
1393 | bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, |
1394 | struct ieee80211_supported_band *sband, |
1395 | const struct ieee80211_ht_cap *ht_cap_ie, |
1396 | struct sta_info *sta); |
1397 | void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, |
1398 | const u8 *da, u16 tid, |
1399 | u16 initiator, u16 reason_code); |
1400 | int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, |
1401 | enum ieee80211_smps_mode smps, const u8 *da, |
1402 | const u8 *bssid); |
1403 | void ieee80211_request_smps_work(struct work_struct *work); |
1404 | |
1405 | void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, |
1406 | u16 initiator, u16 reason, bool stop); |
1407 | void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, |
1408 | u16 initiator, u16 reason, bool stop); |
1409 | void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, |
1410 | enum ieee80211_agg_stop_reason reason); |
1411 | void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, |
1412 | struct sta_info *sta, |
1413 | struct ieee80211_mgmt *mgmt, size_t len); |
1414 | void ieee80211_process_addba_resp(struct ieee80211_local *local, |
1415 | struct sta_info *sta, |
1416 | struct ieee80211_mgmt *mgmt, |
1417 | size_t len); |
1418 | void ieee80211_process_addba_request(struct ieee80211_local *local, |
1419 | struct sta_info *sta, |
1420 | struct ieee80211_mgmt *mgmt, |
1421 | size_t len); |
1422 | |
1423 | int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, |
1424 | enum ieee80211_agg_stop_reason reason); |
1425 | int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, |
1426 | enum ieee80211_agg_stop_reason reason); |
1427 | void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid); |
1428 | void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid); |
1429 | void ieee80211_ba_session_work(struct work_struct *work); |
1430 | void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); |
1431 | void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); |
1432 | |
1433 | u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); |
1434 | |
1435 | /* VHT */ |
1436 | void |
1437 | ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, |
1438 | struct ieee80211_supported_band *sband, |
1439 | const struct ieee80211_vht_cap *vht_cap_ie, |
1440 | struct sta_info *sta); |
1441 | enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta); |
1442 | void ieee80211_sta_set_rx_nss(struct sta_info *sta); |
1443 | void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, |
1444 | struct sta_info *sta, u8 opmode, |
1445 | enum ieee80211_band band, bool nss_only); |
1446 | |
1447 | /* Spectrum management */ |
1448 | void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, |
1449 | struct ieee80211_mgmt *mgmt, |
1450 | size_t len); |
1451 | |
1452 | /* Suspend/resume and hw reconfiguration */ |
1453 | int ieee80211_reconfig(struct ieee80211_local *local); |
1454 | void ieee80211_stop_device(struct ieee80211_local *local); |
1455 | |
1456 | int __ieee80211_suspend(struct ieee80211_hw *hw, |
1457 | struct cfg80211_wowlan *wowlan); |
1458 | |
1459 | static inline int __ieee80211_resume(struct ieee80211_hw *hw) |
1460 | { |
1461 | struct ieee80211_local *local = hw_to_local(hw); |
1462 | |
1463 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
1464 | "%s: resume with hardware scan still in progress\n", |
1465 | wiphy_name(hw->wiphy)); |
1466 | |
1467 | return ieee80211_reconfig(hw_to_local(hw)); |
1468 | } |
1469 | |
1470 | /* utility functions/constants */ |
1471 | extern void *mac80211_wiphy_privid; /* for wiphy privid */ |
1472 | u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, |
1473 | enum nl80211_iftype type); |
1474 | int ieee80211_frame_duration(enum ieee80211_band band, size_t len, |
1475 | int rate, int erp, int short_preamble); |
1476 | void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, |
1477 | struct ieee80211_hdr *hdr, const u8 *tsc, |
1478 | gfp_t gfp); |
1479 | void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, |
1480 | bool bss_notify); |
1481 | void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, |
1482 | enum ieee80211_band band); |
1483 | |
1484 | void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, |
1485 | struct sk_buff *skb, int tid, |
1486 | enum ieee80211_band band); |
1487 | |
1488 | static inline void |
1489 | ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, |
1490 | struct sk_buff *skb, int tid, |
1491 | enum ieee80211_band band) |
1492 | { |
1493 | rcu_read_lock(); |
1494 | __ieee80211_tx_skb_tid_band(sdata, skb, tid, band); |
1495 | rcu_read_unlock(); |
1496 | } |
1497 | |
1498 | static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, |
1499 | struct sk_buff *skb, int tid) |
1500 | { |
1501 | struct ieee80211_chanctx_conf *chanctx_conf; |
1502 | |
1503 | rcu_read_lock(); |
1504 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
1505 | if (WARN_ON(!chanctx_conf)) { |
1506 | rcu_read_unlock(); |
1507 | kfree_skb(skb); |
1508 | return; |
1509 | } |
1510 | |
1511 | __ieee80211_tx_skb_tid_band(sdata, skb, tid, |
1512 | chanctx_conf->def.chan->band); |
1513 | rcu_read_unlock(); |
1514 | } |
1515 | |
1516 | static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, |
1517 | struct sk_buff *skb) |
1518 | { |
1519 | /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ |
1520 | ieee80211_tx_skb_tid(sdata, skb, 7); |
1521 | } |
1522 | |
1523 | void ieee802_11_parse_elems(u8 *start, size_t len, |
1524 | struct ieee802_11_elems *elems); |
1525 | u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, |
1526 | struct ieee802_11_elems *elems, |
1527 | u64 filter, u32 crc); |
1528 | u32 ieee80211_mandatory_rates(struct ieee80211_local *local, |
1529 | enum ieee80211_band band); |
1530 | |
1531 | void ieee80211_dynamic_ps_enable_work(struct work_struct *work); |
1532 | void ieee80211_dynamic_ps_disable_work(struct work_struct *work); |
1533 | void ieee80211_dynamic_ps_timer(unsigned long data); |
1534 | void ieee80211_send_nullfunc(struct ieee80211_local *local, |
1535 | struct ieee80211_sub_if_data *sdata, |
1536 | int powersave); |
1537 | void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, |
1538 | struct ieee80211_hdr *hdr); |
1539 | void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, |
1540 | struct ieee80211_hdr *hdr, bool ack); |
1541 | |
1542 | void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, |
1543 | enum queue_stop_reason reason); |
1544 | void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, |
1545 | enum queue_stop_reason reason); |
1546 | void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, |
1547 | enum queue_stop_reason reason); |
1548 | void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, |
1549 | enum queue_stop_reason reason); |
1550 | void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue); |
1551 | void ieee80211_add_pending_skb(struct ieee80211_local *local, |
1552 | struct sk_buff *skb); |
1553 | void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, |
1554 | struct sk_buff_head *skbs, |
1555 | void (*fn)(void *data), void *data); |
1556 | static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local, |
1557 | struct sk_buff_head *skbs) |
1558 | { |
1559 | ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL); |
1560 | } |
1561 | |
1562 | void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, |
1563 | u16 transaction, u16 auth_alg, u16 status, |
1564 | const u8 *extra, size_t extra_len, const u8 *bssid, |
1565 | const u8 *da, const u8 *key, u8 key_len, u8 key_idx, |
1566 | u32 tx_flags); |
1567 | void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, |
1568 | const u8 *bssid, u16 stype, u16 reason, |
1569 | bool send_frame, u8 *frame_buf); |
1570 | int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, |
1571 | size_t buffer_len, const u8 *ie, size_t ie_len, |
1572 | enum ieee80211_band band, u32 rate_mask, |
1573 | u8 channel); |
1574 | struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, |
1575 | u8 *dst, u32 ratemask, |
1576 | struct ieee80211_channel *chan, |
1577 | const u8 *ssid, size_t ssid_len, |
1578 | const u8 *ie, size_t ie_len, |
1579 | bool directed); |
1580 | void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, |
1581 | const u8 *ssid, size_t ssid_len, |
1582 | const u8 *ie, size_t ie_len, |
1583 | u32 ratemask, bool directed, u32 tx_flags, |
1584 | struct ieee80211_channel *channel, bool scan); |
1585 | |
1586 | void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, |
1587 | const size_t supp_rates_len, |
1588 | const u8 *supp_rates); |
1589 | u32 ieee80211_sta_get_rates(struct ieee80211_local *local, |
1590 | struct ieee802_11_elems *elems, |
1591 | enum ieee80211_band band, u32 *basic_rates); |
1592 | int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, |
1593 | enum ieee80211_smps_mode smps_mode); |
1594 | void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata); |
1595 | |
1596 | size_t ieee80211_ie_split(const u8 *ies, size_t ielen, |
1597 | const u8 *ids, int n_ids, size_t offset); |
1598 | size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); |
1599 | u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
1600 | u16 cap); |
1601 | u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
1602 | const struct cfg80211_chan_def *chandef, |
1603 | u16 prot_mode); |
1604 | u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
1605 | u32 cap); |
1606 | int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, |
1607 | struct sk_buff *skb, bool need_basic, |
1608 | enum ieee80211_band band); |
1609 | int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, |
1610 | struct sk_buff *skb, bool need_basic, |
1611 | enum ieee80211_band band); |
1612 | |
1613 | /* channel management */ |
1614 | void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, |
1615 | const struct ieee80211_ht_operation *ht_oper, |
1616 | struct cfg80211_chan_def *chandef); |
1617 | |
1618 | int __must_check |
1619 | ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, |
1620 | const struct cfg80211_chan_def *chandef, |
1621 | enum ieee80211_chanctx_mode mode); |
1622 | int __must_check |
1623 | ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata, |
1624 | const struct cfg80211_chan_def *chandef, |
1625 | u32 *changed); |
1626 | void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); |
1627 | void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata); |
1628 | void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata, |
1629 | bool clear); |
1630 | |
1631 | void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, |
1632 | struct ieee80211_chanctx *chanctx); |
1633 | void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local, |
1634 | struct ieee80211_chanctx *chanctx); |
1635 | |
1636 | void ieee80211_dfs_cac_timer(unsigned long data); |
1637 | void ieee80211_dfs_cac_timer_work(struct work_struct *work); |
1638 | void ieee80211_dfs_cac_cancel(struct ieee80211_local *local); |
1639 | void ieee80211_dfs_radar_detected_work(struct work_struct *work); |
1640 | |
1641 | #ifdef CONFIG_MAC80211_NOINLINE |
1642 | #define debug_noinline noinline |
1643 | #else |
1644 | #define debug_noinline |
1645 | #endif |
1646 | |
1647 | #endif /* IEEE80211_I_H */ |
1648 |
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