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rt2x00: Fix queue index handling
[linux-2.6-block.git] / net / mac80211 / ieee80211_i.h
CommitLineData
f0706e82
JB		 1/*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#ifndef IEEE80211_I_H
12#define IEEE80211_I_H
13
14#include <linux/kernel.h>
15#include <linux/device.h>
16#include <linux/if_ether.h>
17#include <linux/interrupt.h>
18#include <linux/list.h>
19#include <linux/netdevice.h>
20#include <linux/skbuff.h>
21#include <linux/workqueue.h>
22#include <linux/types.h>
23#include <linux/spinlock.h>
571ecf67 24#include <linux/etherdevice.h>
f0706e82
JB		 25#include <net/wireless.h>
26#include "ieee80211_key.h"
27#include "sta_info.h"
28
29/* ieee80211.o internal definitions, etc. These are not included into
30 * low-level drivers. */
31
32#ifndef ETH_P_PAE
33#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
34#endif /* ETH_P_PAE */
35
36#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
37
38struct ieee80211_local;
39
f0706e82
JB		 40#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
41
42/* Maximum number of broadcast/multicast frames to buffer when some of the
43 * associated stations are using power saving. */
44#define AP_MAX_BC_BUFFER 128
45
46/* Maximum number of frames buffered to all STAs, including multicast frames.
47 * Note: increasing this limit increases the potential memory requirement. Each
48 * frame can be up to about 2 kB long. */
49#define TOTAL_MAX_TX_BUFFER 512
50
51/* Required encryption head and tailroom */
52#define IEEE80211_ENCRYPT_HEADROOM 8
53#define IEEE80211_ENCRYPT_TAILROOM 12
54
55/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
56 * reception of at least three fragmented frames. This limit can be increased
57 * by changing this define, at the cost of slower frame reassembly and
58 * increased memory use (about 2 kB of RAM per entry). */
59#define IEEE80211_FRAGMENT_MAX 4
60
61struct ieee80211_fragment_entry {
62 unsigned long first_frag_time;
63 unsigned int seq;
64 unsigned int rx_queue;
65 unsigned int last_frag;
66 unsigned int extra_len;
67 struct sk_buff_head skb_list;
68 int ccmp; /* Whether fragments were encrypted with CCMP */
69 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
70};
71
72
73struct ieee80211_sta_bss {
74 struct list_head list;
75 struct ieee80211_sta_bss *hnext;
76 atomic_t users;
77
78 u8 bssid[ETH_ALEN];
79 u8 ssid[IEEE80211_MAX_SSID_LEN];
80 size_t ssid_len;
81 u16 capability; /* host byte order */
82 int hw_mode;
83 int channel;
84 int freq;
85 int rssi, signal, noise;
86 u8 *wpa_ie;
87 size_t wpa_ie_len;
88 u8 *rsn_ie;
89 size_t rsn_ie_len;
90 u8 *wmm_ie;
91 size_t wmm_ie_len;
c7153508
RR		 92 u8 *ht_ie;
93 size_t ht_ie_len;
f0706e82
JB		 94#define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
96 size_t supp_rates_len;
97 int beacon_int;
98 u64 timestamp;
99
100 int probe_resp;
101 unsigned long last_update;
102
5628221c
DD		 103 /* during assocation, we save an ERP value from a probe response so
104 * that we can feed ERP info to the driver when handling the
105 * association completes. these fields probably won't be up-to-date
106 * otherwise, you probably don't want to use them. */
107 int has_erp_value;
108 u8 erp_value;
f0706e82
JB		 109};
110
111
112typedef enum {
113 TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
114} ieee80211_txrx_result;
115
badffb72
JS		 116/* flags used in struct ieee80211_txrx_data.flags */
117/* whether the MSDU was fragmented */
118#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
119#define IEEE80211_TXRXD_TXUNICAST BIT(1)
120#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
121#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
122#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
123/* frame is destined to interface currently processed (incl. multicast frames) */
124#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
58d4185e 125#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
64bd4b69 126#define IEEE80211_TXRXD_RX_AMSDU BIT(7)
f0706e82
JB		 127struct ieee80211_txrx_data {
128 struct sk_buff *skb;
129 struct net_device *dev;
130 struct ieee80211_local *local;
131 struct ieee80211_sub_if_data *sdata;
132 struct sta_info *sta;
133 u16 fc, ethertype;
134 struct ieee80211_key *key;
badffb72 135 unsigned int flags;
f0706e82
JB		 136 union {
137 struct {
138 struct ieee80211_tx_control *control;
f0706e82
JB		 139 struct ieee80211_hw_mode *mode;
140 struct ieee80211_rate *rate;
141 /* use this rate (if set) for last fragment; rate can
142 * be set to lower rate for the first fragments, e.g.,
143 * when using CTS protection with IEEE 802.11g. */
144 struct ieee80211_rate *last_frag_rate;
145 int last_frag_hwrate;
f0706e82
JB		 146
147 /* Extra fragments (in addition to the first fragment
148 * in skb) */
149 int num_extra_frag;
150 struct sk_buff **extra_frag;
151 } tx;
152 struct {
153 struct ieee80211_rx_status *status;
154 int sent_ps_buffered;
155 int queue;
156 int load;
50741ae0
JB		 157 u32 tkip_iv32;
158 u16 tkip_iv16;
f0706e82
JB		 159 } rx;
160 } u;
161};
162
e8bf9649
JS		 163/* flags used in struct ieee80211_tx_packet_data.flags */
164#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
165#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
166#define IEEE80211_TXPD_REQUEUE BIT(2)
678f5f71 167#define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
9e723492 168#define IEEE80211_TXPD_AMPDU BIT(4)
f0706e82
JB		 169/* Stored in sk_buff->cb */
170struct ieee80211_tx_packet_data {
171 int ifindex;
172 unsigned long jiffies;
e8bf9649
JS		 173 unsigned int flags;
174 u8 queue;
f0706e82
JB		 175};
176
177struct ieee80211_tx_stored_packet {
178 struct ieee80211_tx_control control;
179 struct sk_buff *skb;
180 int num_extra_frag;
181 struct sk_buff **extra_frag;
182 int last_frag_rateidx;
183 int last_frag_hwrate;
184 struct ieee80211_rate *last_frag_rate;
badffb72 185 unsigned int last_frag_rate_ctrl_probe;
f0706e82
JB		 186};
187
188typedef ieee80211_txrx_result (*ieee80211_tx_handler)
189(struct ieee80211_txrx_data *tx);
190
191typedef ieee80211_txrx_result (*ieee80211_rx_handler)
192(struct ieee80211_txrx_data *rx);
193
5dfdaf58
JB		 194struct beacon_data {
195 u8 *head, *tail;
196 int head_len, tail_len;
197 int dtim_period;
198};
199
f0706e82 200struct ieee80211_if_ap {
5dfdaf58 201 struct beacon_data *beacon;
f0706e82 202
0ec3ca44
JB		 203 struct list_head vlans;
204
f0706e82
JB		 205 u8 ssid[IEEE80211_MAX_SSID_LEN];
206 size_t ssid_len;
f0706e82
JB		 207
208 /* yes, this looks ugly, but guarantees that we can later use
209 * bitmap_empty :)
210 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
211 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
212 atomic_t num_sta_ps; /* number of stations in PS mode */
213 struct sk_buff_head ps_bc_buf;
5dfdaf58 214 int dtim_count;
f0706e82
JB		 215 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
216 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
217 int num_beacons; /* number of TXed beacon frames for this BSS */
218};
219
220struct ieee80211_if_wds {
221 u8 remote_addr[ETH_ALEN];
222 struct sta_info *sta;
223};
224
225struct ieee80211_if_vlan {
0ec3ca44
JB		 226 struct ieee80211_sub_if_data *ap;
227 struct list_head list;
f0706e82
JB		 228};
229
d6f2da5b
JS		 230/* flags used in struct ieee80211_if_sta.flags */
231#define IEEE80211_STA_SSID_SET BIT(0)
232#define IEEE80211_STA_BSSID_SET BIT(1)
233#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
234#define IEEE80211_STA_AUTHENTICATED BIT(3)
235#define IEEE80211_STA_ASSOCIATED BIT(4)
236#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
237#define IEEE80211_STA_CREATE_IBSS BIT(6)
238#define IEEE80211_STA_MIXED_CELL BIT(7)
239#define IEEE80211_STA_WMM_ENABLED BIT(8)
240#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
241#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
242#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
5b98b1f7 243#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
f0706e82
JB		 244struct ieee80211_if_sta {
245 enum {
246 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
247 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
248 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
249 } state;
250 struct timer_list timer;
251 struct work_struct work;
252 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
253 u8 ssid[IEEE80211_MAX_SSID_LEN];
254 size_t ssid_len;
a0af5f14
HS		 255 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
256 size_t scan_ssid_len;
f0706e82
JB		 257 u16 aid;
258 u16 ap_capab, capab;
259 u8 *extra_ie; /* to be added to the end of AssocReq */
260 size_t extra_ie_len;
261
262 /* The last AssocReq/Resp IEs */
263 u8 *assocreq_ies, *assocresp_ies;
264 size_t assocreq_ies_len, assocresp_ies_len;
265
266 int auth_tries, assoc_tries;
267
d6f2da5b 268 unsigned int flags;
f0706e82
JB		 269#define IEEE80211_STA_REQ_SCAN 0
270#define IEEE80211_STA_REQ_AUTH 1
271#define IEEE80211_STA_REQ_RUN 2
272 unsigned long request;
273 struct sk_buff_head skb_queue;
274
f0706e82
JB		 275 unsigned long last_probe;
276
277#define IEEE80211_AUTH_ALG_OPEN BIT(0)
278#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
279#define IEEE80211_AUTH_ALG_LEAP BIT(2)
280 unsigned int auth_algs; /* bitfield of allowed auth algs */
281 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
282 int auth_transaction;
283
284 unsigned long ibss_join_req;
285 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
286 u32 supp_rates_bits;
287
288 int wmm_last_param_set;
289};
290
291
13262ffd
JS		 292/* flags used in struct ieee80211_sub_if_data.flags */
293#define IEEE80211_SDATA_ALLMULTI BIT(0)
294#define IEEE80211_SDATA_PROMISC BIT(1)
471b3efd 295#define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
f0706e82
JB		 296struct ieee80211_sub_if_data {
297 struct list_head list;
f0706e82
JB		 298
299 struct wireless_dev wdev;
300
11a843b7
JB		 301 /* keys */
302 struct list_head key_list;
303
f0706e82
JB		 304 struct net_device *dev;
305 struct ieee80211_local *local;
306
13262ffd 307 unsigned int flags;
7e9ed188 308
f0706e82 309 int drop_unencrypted;
ce3edf6d
JB		 310 /*
311 * IEEE 802.1X Port access control in effect,
312 * drop packets to/from unauthorized port
313 */
314 int ieee802_1x_pac;
f0706e82
JB		 315
316 u16 sequence;
317
318 /* Fragment table for host-based reassembly */
319 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
320 unsigned int fragment_next;
321
322#define NUM_DEFAULT_KEYS 4
323 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
324 struct ieee80211_key *default_key;
325
471b3efd
JB		 326 /*
327 * BSS configuration for this interface.
328 *
329 * FIXME: I feel bad putting this here when we already have a
330 * bss pointer, but the bss pointer is just wrong when
331 * you have multiple virtual STA mode interfaces...
332 * This needs to be fixed.
333 */
334 struct ieee80211_bss_conf bss_conf;
f0706e82
JB		 335 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
336
337 union {
338 struct ieee80211_if_ap ap;
339 struct ieee80211_if_wds wds;
340 struct ieee80211_if_vlan vlan;
341 struct ieee80211_if_sta sta;
342 } u;
343 int channel_use;
344 int channel_use_raw;
e9f207f0
JB		 345
346#ifdef CONFIG_MAC80211_DEBUGFS
347 struct dentry *debugfsdir;
348 union {
349 struct {
350 struct dentry *channel_use;
351 struct dentry *drop_unencrypted;
ce3edf6d 352 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 353 struct dentry *state;
354 struct dentry *bssid;
355 struct dentry *prev_bssid;
356 struct dentry *ssid_len;
357 struct dentry *aid;
358 struct dentry *ap_capab;
359 struct dentry *capab;
360 struct dentry *extra_ie_len;
361 struct dentry *auth_tries;
362 struct dentry *assoc_tries;
363 struct dentry *auth_algs;
364 struct dentry *auth_alg;
365 struct dentry *auth_transaction;
366 struct dentry *flags;
367 } sta;
368 struct {
369 struct dentry *channel_use;
370 struct dentry *drop_unencrypted;
ce3edf6d 371 struct dentry *ieee802_1x_pac;
e9f207f0 372 struct dentry *num_sta_ps;
e9f207f0
JB		 373 struct dentry *dtim_count;
374 struct dentry *num_beacons;
375 struct dentry *force_unicast_rateidx;
376 struct dentry *max_ratectrl_rateidx;
377 struct dentry *num_buffered_multicast;
e9f207f0
JB		 378 } ap;
379 struct {
380 struct dentry *channel_use;
381 struct dentry *drop_unencrypted;
ce3edf6d 382 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 383 struct dentry *peer;
384 } wds;
385 struct {
386 struct dentry *channel_use;
387 struct dentry *drop_unencrypted;
ce3edf6d 388 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 389 } vlan;
390 struct {
391 struct dentry *mode;
392 } monitor;
393 struct dentry *default_key;
394 } debugfs;
395#endif
32bfd35d
JB		 396 /* must be last, dynamically sized area in this! */
397 struct ieee80211_vif vif;
f0706e82
JB		 398};
399
32bfd35d
JB		 400static inline
401struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
402{
403 return container_of(p, struct ieee80211_sub_if_data, vif);
404}
405
f0706e82
JB		 406#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
407
408enum {
409 IEEE80211_RX_MSG = 1,
410 IEEE80211_TX_STATUS_MSG = 2,
eadc8d9e
RR		 411 IEEE80211_DELBA_MSG = 3,
412 IEEE80211_ADDBA_MSG = 4,
f0706e82
JB		 413};
414
415struct ieee80211_local {
416 /* embed the driver visible part.
417 * don't cast (use the static inlines below), but we keep
418 * it first anyway so they become a no-op */
419 struct ieee80211_hw hw;
420
421 const struct ieee80211_ops *ops;
422
423 /* List of registered struct ieee80211_hw_mode */
424 struct list_head modes_list;
425
426 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
f0706e82
JB		 427 int open_count;
428 int monitors;
4150c572 429 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 430 struct iw_statistics wstats;
431 u8 wstats_flags;
b306f453 432 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 433
434 enum {
435 IEEE80211_DEV_UNINITIALIZED = 0,
436 IEEE80211_DEV_REGISTERED,
437 IEEE80211_DEV_UNREGISTERED,
438 } reg_state;
439
440 /* Tasklet and skb queue to process calls from IRQ mode. All frames
441 * added to skb_queue will be processed, but frames in
442 * skb_queue_unreliable may be dropped if the total length of these
443 * queues increases over the limit. */
444#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
445 struct tasklet_struct tasklet;
446 struct sk_buff_head skb_queue;
447 struct sk_buff_head skb_queue_unreliable;
448
449 /* Station data structures */
be8755e1 450 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 451 int num_sta; /* number of stations in sta_list */
452 struct list_head sta_list;
f0706e82
JB		 453 struct sta_info *sta_hash[STA_HASH_SIZE];
454 struct timer_list sta_cleanup;
455
9e723492
RR		 456 unsigned long state[NUM_TX_DATA_QUEUES_AMPDU];
457 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES_AMPDU];
f0706e82
JB		 458 struct tasklet_struct tx_pending_tasklet;
459
53918994
JB		 460 /* number of interfaces with corresponding IFF_ flags */
461 atomic_t iff_allmultis, iff_promiscs;
f0706e82
JB		 462
463 struct rate_control_ref *rate_ctrl;
464
f0706e82
JB		 465 /* Supported and basic rate filters for different modes. These are
466 * pointers to -1 terminated lists and rates in 100 kbps units. */
467 int *supp_rates[NUM_IEEE80211_MODES];
468 int *basic_rates[NUM_IEEE80211_MODES];
469
470 int rts_threshold;
f0706e82
JB		 471 int fragmentation_threshold;
472 int short_retry_limit; /* dot11ShortRetryLimit */
473 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 474
475 struct crypto_blkcipher *wep_tx_tfm;
476 struct crypto_blkcipher *wep_rx_tfm;
477 u32 wep_iv;
f0706e82
JB		 478
479 int bridge_packets; /* bridge packets between associated stations and
480 * deliver multicast frames both back to wireless
481 * media and to the local net stack */
482
f0706e82
JB		 483 ieee80211_rx_handler *rx_handlers;
484 ieee80211_tx_handler *tx_handlers;
485
79010420
JB		 486 struct list_head interfaces;
487
ece8eddd
ZY		 488 bool sta_sw_scanning;
489 bool sta_hw_scanning;
f0706e82
JB		 490 int scan_channel_idx;
491 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
492 unsigned long last_scan_completed;
493 struct delayed_work scan_work;
494 struct net_device *scan_dev;
495 struct ieee80211_channel *oper_channel, *scan_channel;
496 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
497 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
498 size_t scan_ssid_len;
499 struct list_head sta_bss_list;
500 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
501 spinlock_t sta_bss_lock;
f0706e82
JB		 502
503 /* SNMP counters */
504 /* dot11CountersTable */
505 u32 dot11TransmittedFragmentCount;
506 u32 dot11MulticastTransmittedFrameCount;
507 u32 dot11FailedCount;
508 u32 dot11RetryCount;
509 u32 dot11MultipleRetryCount;
510 u32 dot11FrameDuplicateCount;
511 u32 dot11ReceivedFragmentCount;
512 u32 dot11MulticastReceivedFrameCount;
513 u32 dot11TransmittedFrameCount;
514 u32 dot11WEPUndecryptableCount;
515
516#ifdef CONFIG_MAC80211_LEDS
517 int tx_led_counter, rx_led_counter;
cdcb006f
ID		 518 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
519 char tx_led_name[32], rx_led_name[32],
520 assoc_led_name[32], radio_led_name[32];
f0706e82
JB		 521#endif
522
523 u32 channel_use;
524 u32 channel_use_raw;
f0706e82 525
e9f207f0
JB		 526#ifdef CONFIG_MAC80211_DEBUGFS
527 struct work_struct sta_debugfs_add;
528#endif
529
f0706e82
JB		 530#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
531 /* TX/RX handler statistics */
532 unsigned int tx_handlers_drop;
533 unsigned int tx_handlers_queued;
534 unsigned int tx_handlers_drop_unencrypted;
535 unsigned int tx_handlers_drop_fragment;
536 unsigned int tx_handlers_drop_wep;
537 unsigned int tx_handlers_drop_not_assoc;
538 unsigned int tx_handlers_drop_unauth_port;
539 unsigned int rx_handlers_drop;
540 unsigned int rx_handlers_queued;
541 unsigned int rx_handlers_drop_nullfunc;
542 unsigned int rx_handlers_drop_defrag;
543 unsigned int rx_handlers_drop_short;
544 unsigned int rx_handlers_drop_passive_scan;
545 unsigned int tx_expand_skb_head;
546 unsigned int tx_expand_skb_head_cloned;
547 unsigned int rx_expand_skb_head;
548 unsigned int rx_expand_skb_head2;
549 unsigned int rx_handlers_fragments;
550 unsigned int tx_status_drop;
551 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
552 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
553#define I802_DEBUG_INC(c) (c)++
554#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
555#define I802_DEBUG_INC(c) do { } while (0)
556#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
557
558
f0706e82
JB		 559 int total_ps_buffered; /* total number of all buffered unicast and
560 * multicast packets for power saving stations
561 */
f0706e82
JB		 562 int wifi_wme_noack_test;
563 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
564
565 unsigned int enabled_modes; /* bitfield of allowed modes;
566 * (1 << MODE_*) */
567 unsigned int hw_modes; /* bitfield of supported hardware modes;
568 * (1 << MODE_*) */
569
e9f207f0
JB		 570#ifdef CONFIG_MAC80211_DEBUGFS
571 struct local_debugfsdentries {
572 struct dentry *channel;
573 struct dentry *frequency;
e9f207f0
JB		 574 struct dentry *antenna_sel_tx;
575 struct dentry *antenna_sel_rx;
576 struct dentry *bridge_packets;
e9f207f0
JB		 577 struct dentry *rts_threshold;
578 struct dentry *fragmentation_threshold;
579 struct dentry *short_retry_limit;
580 struct dentry *long_retry_limit;
581 struct dentry *total_ps_buffered;
582 struct dentry *mode;
583 struct dentry *wep_iv;
e9f207f0
JB		 584 struct dentry *modes;
585 struct dentry *statistics;
586 struct local_debugfsdentries_statsdentries {
587 struct dentry *transmitted_fragment_count;
588 struct dentry *multicast_transmitted_frame_count;
589 struct dentry *failed_count;
590 struct dentry *retry_count;
591 struct dentry *multiple_retry_count;
592 struct dentry *frame_duplicate_count;
593 struct dentry *received_fragment_count;
594 struct dentry *multicast_received_frame_count;
595 struct dentry *transmitted_frame_count;
596 struct dentry *wep_undecryptable_count;
597 struct dentry *num_scans;
598#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
599 struct dentry *tx_handlers_drop;
600 struct dentry *tx_handlers_queued;
601 struct dentry *tx_handlers_drop_unencrypted;
602 struct dentry *tx_handlers_drop_fragment;
603 struct dentry *tx_handlers_drop_wep;
604 struct dentry *tx_handlers_drop_not_assoc;
605 struct dentry *tx_handlers_drop_unauth_port;
606 struct dentry *rx_handlers_drop;
607 struct dentry *rx_handlers_queued;
608 struct dentry *rx_handlers_drop_nullfunc;
609 struct dentry *rx_handlers_drop_defrag;
610 struct dentry *rx_handlers_drop_short;
611 struct dentry *rx_handlers_drop_passive_scan;
612 struct dentry *tx_expand_skb_head;
613 struct dentry *tx_expand_skb_head_cloned;
614 struct dentry *rx_expand_skb_head;
615 struct dentry *rx_expand_skb_head2;
616 struct dentry *rx_handlers_fragments;
617 struct dentry *tx_status_drop;
618 struct dentry *wme_tx_queue;
619 struct dentry *wme_rx_queue;
620#endif
621 struct dentry *dot11ACKFailureCount;
622 struct dentry *dot11RTSFailureCount;
623 struct dentry *dot11FCSErrorCount;
624 struct dentry *dot11RTSSuccessCount;
625 } stats;
626 struct dentry *stations;
627 struct dentry *keys;
628 } debugfs;
629#endif
f0706e82
JB		 630};
631
eadc8d9e
RR		 632/* this struct represents 802.11n's RA/TID combination */
633struct ieee80211_ra_tid {
634 u8 ra[ETH_ALEN];
635 u16 tid;
636};
637
f0706e82
JB		 638static inline struct ieee80211_local *hw_to_local(
639 struct ieee80211_hw *hw)
640{
641 return container_of(hw, struct ieee80211_local, hw);
642}
643
644static inline struct ieee80211_hw *local_to_hw(
645 struct ieee80211_local *local)
646{
647 return &local->hw;
648}
649
650enum ieee80211_link_state_t {
651 IEEE80211_LINK_STATE_XOFF = 0,
652 IEEE80211_LINK_STATE_PENDING,
653};
654
655struct sta_attribute {
656 struct attribute attr;
657 ssize_t (*show)(const struct sta_info *, char *buf);
658 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
659};
660
30ccb088 661static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 662{
663 /*
30ccb088 664 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 665 * so this line may not be changed to use the __set_bit() format.
666 */
30ccb088 667 bss->tim[aid / 8] |= (1 << (aid % 8));
f0706e82
JB		 668}
669
670static inline void bss_tim_set(struct ieee80211_local *local,
30ccb088 671 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 672{
be8755e1 673 read_lock_bh(&local->sta_lock);
f0706e82 674 __bss_tim_set(bss, aid);
be8755e1 675 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 676}
677
30ccb088 678static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 679{
680 /*
30ccb088 681 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 682 * so this line may not be changed to use the __clear_bit() format.
683 */
30ccb088 684 bss->tim[aid / 8] &= ~(1 << (aid % 8));
f0706e82
JB		 685}
686
687static inline void bss_tim_clear(struct ieee80211_local *local,
30ccb088 688 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 689{
be8755e1 690 read_lock_bh(&local->sta_lock);
f0706e82 691 __bss_tim_clear(bss, aid);
be8755e1 692 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 693}
694
695/**
696 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
697 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
698 * @rate: Transmission rate to check, in 100 kbps
699 *
700 * Check if a given rate is an Extended Rate PHY (ERP) rate.
701 */
702static inline int ieee80211_is_erp_rate(int phymode, int rate)
703{
704 if (phymode == MODE_IEEE80211G) {
705 if (rate != 10 && rate != 20 &&
706 rate != 55 && rate != 110)
707 return 1;
708 }
709 return 0;
710}
711
571ecf67
JB		 712static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
713{
714 return compare_ether_addr(raddr, addr) == 0 ||
715 is_broadcast_ether_addr(raddr);
716}
717
718
f0706e82
JB		 719/* ieee80211.c */
720int ieee80211_hw_config(struct ieee80211_local *local);
721int ieee80211_if_config(struct net_device *dev);
722int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 723void ieee80211_prepare_rates(struct ieee80211_local *local,
724 struct ieee80211_hw_mode *mode);
725void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
726int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
727void ieee80211_if_setup(struct net_device *dev);
571ecf67
JB		 728struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
729 int phymode, int hwrate);
d3c990fb
RR		 730int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
731 struct ieee80211_ht_info *req_ht_cap,
732 struct ieee80211_ht_bss_info *req_bss_cap);
f0706e82
JB		 733
734/* ieee80211_ioctl.c */
735extern const struct iw_handler_def ieee80211_iw_handler_def;
736
f0706e82
JB		 737
738/* Least common multiple of the used rates (in 100 kbps). This is used to
739 * calculate rate_inv values for each rate so that only integers are needed. */
740#define CHAN_UTIL_RATE_LCM 95040
741/* 1 usec is 1/8 * (95040/10) = 1188 */
742#define CHAN_UTIL_PER_USEC 1188
743/* Amount of bits to shift the result right to scale the total utilization
744 * to values that will not wrap around 32-bit integers. */
745#define CHAN_UTIL_SHIFT 9
746/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
747 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
748 * raw value with about 23 should give utilization in 10th of a percentage
749 * (1/1000). However, utilization is only estimated and not all intervals
750 * between frames etc. are calculated. 18 seems to give numbers that are closer
751 * to the real maximum. */
752#define CHAN_UTIL_PER_10MS 18
753#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
754#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
755
756
757/* ieee80211_ioctl.c */
758int ieee80211_set_compression(struct ieee80211_local *local,
759 struct net_device *dev, struct sta_info *sta);
f0706e82
JB		 760int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
761/* ieee80211_sta.c */
762void ieee80211_sta_timer(unsigned long data);
763void ieee80211_sta_work(struct work_struct *work);
764void ieee80211_sta_scan_work(struct work_struct *work);
765void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
766 struct ieee80211_rx_status *rx_status);
767int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
768int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
769int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
770int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
771void ieee80211_sta_req_auth(struct net_device *dev,
772 struct ieee80211_if_sta *ifsta);
773int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
ece8eddd
ZY		 774ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
775 struct sk_buff *skb,
f0706e82
JB		 776 struct ieee80211_rx_status *rx_status);
777void ieee80211_rx_bss_list_init(struct net_device *dev);
778void ieee80211_rx_bss_list_deinit(struct net_device *dev);
779int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
780struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
781 struct sk_buff *skb, u8 *bssid,
782 u8 *addr);
783int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
784int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
471b3efd
JB		 785void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
786 u32 changed);
d9430a32 787void ieee80211_reset_erp_info(struct net_device *dev);
c7153508
RR		 788int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
789 struct ieee80211_ht_info *ht_info);
790int ieee80211_ht_addt_info_ie_to_ht_bss_info(
791 struct ieee80211_ht_addt_info *ht_add_info_ie,
792 struct ieee80211_ht_bss_info *bss_info);
eadc8d9e
RR		 793void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
794 u16 tid, u8 dialog_token, u16 start_seq_num,
795 u16 agg_size, u16 timeout);
796void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
797 u16 initiator, u16 reason_code);
07db2183
RR		 798void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
799 u16 tid, u16 initiator, u16 reason);
800void sta_rx_agg_session_timer_expired(unsigned long data);
eadc8d9e 801void sta_addba_resp_timer_expired(unsigned long data);
f0706e82
JB		 802/* ieee80211_iface.c */
803int ieee80211_if_add(struct net_device *dev, const char *name,
804 struct net_device **new_dev, int type);
805void ieee80211_if_set_type(struct net_device *dev, int type);
806void ieee80211_if_reinit(struct net_device *dev);
807void __ieee80211_if_del(struct ieee80211_local *local,
808 struct ieee80211_sub_if_data *sdata);
809int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
810void ieee80211_if_free(struct net_device *dev);
811void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
f0706e82 812
fd8bacc9
DD		 813/* regdomain.c */
814void ieee80211_regdomain_init(void);
815void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
816
571ecf67 817/* rx handling */
571ecf67
JB		 818extern ieee80211_rx_handler ieee80211_rx_handlers[];
819
e2ebc74d
JB		 820/* tx handling */
821extern ieee80211_tx_handler ieee80211_tx_handlers[];
822void ieee80211_clear_tx_pending(struct ieee80211_local *local);
823void ieee80211_tx_pending(unsigned long data);
824int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
825int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
826int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
e2ebc74d 827
c2d1560a
JB		 828/* utility functions/constants */
829extern void *mac80211_wiphy_privid; /* for wiphy privid */
830extern const unsigned char rfc1042_header[6];
831extern const unsigned char bridge_tunnel_header[6];
71364716
RR		 832u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
833 enum ieee80211_if_types type);
c2d1560a
JB		 834int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
835 int rate, int erp, int short_preamble);
eb063c17
JB		 836void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
837 struct ieee80211_hdr *hdr);
f0706e82
JB		 838
839#endif /* IEEE80211_I_H */
Linux 6.x block layer and io_uring tree(s)