]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blame - net/mac80211/ieee80211_i.h
projects / mirror_ubuntu-zesty-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mac80211: A-MPDU Rx handling aggregation reordering
[mirror_ubuntu-zesty-kernel.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)
f0706e82
JB		 168/* Stored in sk_buff->cb */
169struct ieee80211_tx_packet_data {
170 int ifindex;
171 unsigned long jiffies;
e8bf9649
JS		 172 unsigned int flags;
173 u8 queue;
f0706e82
JB		 174};
175
176struct ieee80211_tx_stored_packet {
177 struct ieee80211_tx_control control;
178 struct sk_buff *skb;
179 int num_extra_frag;
180 struct sk_buff **extra_frag;
181 int last_frag_rateidx;
182 int last_frag_hwrate;
183 struct ieee80211_rate *last_frag_rate;
badffb72 184 unsigned int last_frag_rate_ctrl_probe;
f0706e82
JB		 185};
186
187typedef ieee80211_txrx_result (*ieee80211_tx_handler)
188(struct ieee80211_txrx_data *tx);
189
190typedef ieee80211_txrx_result (*ieee80211_rx_handler)
191(struct ieee80211_txrx_data *rx);
192
193struct ieee80211_if_ap {
194 u8 *beacon_head, *beacon_tail;
195 int beacon_head_len, beacon_tail_len;
196
0ec3ca44
JB		 197 struct list_head vlans;
198
f0706e82
JB		 199 u8 ssid[IEEE80211_MAX_SSID_LEN];
200 size_t ssid_len;
f0706e82
JB		 201
202 /* yes, this looks ugly, but guarantees that we can later use
203 * bitmap_empty :)
204 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
205 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
206 atomic_t num_sta_ps; /* number of stations in PS mode */
207 struct sk_buff_head ps_bc_buf;
208 int dtim_period, dtim_count;
209 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
210 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
211 int num_beacons; /* number of TXed beacon frames for this BSS */
212};
213
214struct ieee80211_if_wds {
215 u8 remote_addr[ETH_ALEN];
216 struct sta_info *sta;
217};
218
219struct ieee80211_if_vlan {
0ec3ca44
JB		 220 struct ieee80211_sub_if_data *ap;
221 struct list_head list;
f0706e82
JB		 222};
223
d6f2da5b
JS		 224/* flags used in struct ieee80211_if_sta.flags */
225#define IEEE80211_STA_SSID_SET BIT(0)
226#define IEEE80211_STA_BSSID_SET BIT(1)
227#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
228#define IEEE80211_STA_AUTHENTICATED BIT(3)
229#define IEEE80211_STA_ASSOCIATED BIT(4)
230#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
231#define IEEE80211_STA_CREATE_IBSS BIT(6)
232#define IEEE80211_STA_MIXED_CELL BIT(7)
233#define IEEE80211_STA_WMM_ENABLED BIT(8)
234#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
235#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
236#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
5b98b1f7 237#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
f0706e82
JB		 238struct ieee80211_if_sta {
239 enum {
240 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
241 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
242 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
243 } state;
244 struct timer_list timer;
245 struct work_struct work;
246 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
247 u8 ssid[IEEE80211_MAX_SSID_LEN];
248 size_t ssid_len;
a0af5f14
HS		 249 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
250 size_t scan_ssid_len;
f0706e82
JB		 251 u16 aid;
252 u16 ap_capab, capab;
253 u8 *extra_ie; /* to be added to the end of AssocReq */
254 size_t extra_ie_len;
255
256 /* The last AssocReq/Resp IEs */
257 u8 *assocreq_ies, *assocresp_ies;
258 size_t assocreq_ies_len, assocresp_ies_len;
259
260 int auth_tries, assoc_tries;
261
d6f2da5b 262 unsigned int flags;
f0706e82
JB		 263#define IEEE80211_STA_REQ_SCAN 0
264#define IEEE80211_STA_REQ_AUTH 1
265#define IEEE80211_STA_REQ_RUN 2
266 unsigned long request;
267 struct sk_buff_head skb_queue;
268
f0706e82
JB		 269 unsigned long last_probe;
270
271#define IEEE80211_AUTH_ALG_OPEN BIT(0)
272#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
273#define IEEE80211_AUTH_ALG_LEAP BIT(2)
274 unsigned int auth_algs; /* bitfield of allowed auth algs */
275 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
276 int auth_transaction;
277
278 unsigned long ibss_join_req;
279 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
280 u32 supp_rates_bits;
281
282 int wmm_last_param_set;
283};
284
285
13262ffd
JS		 286/* flags used in struct ieee80211_sub_if_data.flags */
287#define IEEE80211_SDATA_ALLMULTI BIT(0)
288#define IEEE80211_SDATA_PROMISC BIT(1)
289#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
290/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
291 * generator reports that there are no present stations that cannot support short
292 * preambles */
293#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
ddd3d2be 294#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
f0706e82
JB		 295struct ieee80211_sub_if_data {
296 struct list_head list;
fb1c1cd6 297 enum ieee80211_if_types type;
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
326 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
327
328 union {
329 struct ieee80211_if_ap ap;
330 struct ieee80211_if_wds wds;
331 struct ieee80211_if_vlan vlan;
332 struct ieee80211_if_sta sta;
333 } u;
334 int channel_use;
335 int channel_use_raw;
e9f207f0
JB		 336
337#ifdef CONFIG_MAC80211_DEBUGFS
338 struct dentry *debugfsdir;
339 union {
340 struct {
341 struct dentry *channel_use;
342 struct dentry *drop_unencrypted;
ce3edf6d 343 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 344 struct dentry *state;
345 struct dentry *bssid;
346 struct dentry *prev_bssid;
347 struct dentry *ssid_len;
348 struct dentry *aid;
349 struct dentry *ap_capab;
350 struct dentry *capab;
351 struct dentry *extra_ie_len;
352 struct dentry *auth_tries;
353 struct dentry *assoc_tries;
354 struct dentry *auth_algs;
355 struct dentry *auth_alg;
356 struct dentry *auth_transaction;
357 struct dentry *flags;
358 } sta;
359 struct {
360 struct dentry *channel_use;
361 struct dentry *drop_unencrypted;
ce3edf6d 362 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 363 struct dentry *num_sta_ps;
364 struct dentry *dtim_period;
365 struct dentry *dtim_count;
366 struct dentry *num_beacons;
367 struct dentry *force_unicast_rateidx;
368 struct dentry *max_ratectrl_rateidx;
369 struct dentry *num_buffered_multicast;
370 struct dentry *beacon_head_len;
371 struct dentry *beacon_tail_len;
372 } ap;
373 struct {
374 struct dentry *channel_use;
375 struct dentry *drop_unencrypted;
ce3edf6d 376 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 377 struct dentry *peer;
378 } wds;
379 struct {
380 struct dentry *channel_use;
381 struct dentry *drop_unencrypted;
ce3edf6d 382 struct dentry *ieee802_1x_pac;
e9f207f0
JB		 383 } vlan;
384 struct {
385 struct dentry *mode;
386 } monitor;
387 struct dentry *default_key;
388 } debugfs;
389#endif
f0706e82
JB		 390};
391
392#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
393
394enum {
395 IEEE80211_RX_MSG = 1,
396 IEEE80211_TX_STATUS_MSG = 2,
397};
398
399struct ieee80211_local {
400 /* embed the driver visible part.
401 * don't cast (use the static inlines below), but we keep
402 * it first anyway so they become a no-op */
403 struct ieee80211_hw hw;
404
405 const struct ieee80211_ops *ops;
406
407 /* List of registered struct ieee80211_hw_mode */
408 struct list_head modes_list;
409
410 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
f0706e82
JB		 411 int open_count;
412 int monitors;
4150c572 413 unsigned int filter_flags; /* FIF_* */
f0706e82
JB		 414 struct iw_statistics wstats;
415 u8 wstats_flags;
b306f453 416 int tx_headroom; /* required headroom for hardware/radiotap */
f0706e82
JB		 417
418 enum {
419 IEEE80211_DEV_UNINITIALIZED = 0,
420 IEEE80211_DEV_REGISTERED,
421 IEEE80211_DEV_UNREGISTERED,
422 } reg_state;
423
424 /* Tasklet and skb queue to process calls from IRQ mode. All frames
425 * added to skb_queue will be processed, but frames in
426 * skb_queue_unreliable may be dropped if the total length of these
427 * queues increases over the limit. */
428#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
429 struct tasklet_struct tasklet;
430 struct sk_buff_head skb_queue;
431 struct sk_buff_head skb_queue_unreliable;
432
433 /* Station data structures */
be8755e1 434 rwlock_t sta_lock; /* protects STA data structures */
f0706e82
JB		 435 int num_sta; /* number of stations in sta_list */
436 struct list_head sta_list;
f0706e82
JB		 437 struct sta_info *sta_hash[STA_HASH_SIZE];
438 struct timer_list sta_cleanup;
439
440 unsigned long state[NUM_TX_DATA_QUEUES];
441 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
442 struct tasklet_struct tx_pending_tasklet;
443
53918994
JB		 444 /* number of interfaces with corresponding IFF_ flags */
445 atomic_t iff_allmultis, iff_promiscs;
f0706e82
JB		 446
447 struct rate_control_ref *rate_ctrl;
448
f0706e82
JB		 449 /* Supported and basic rate filters for different modes. These are
450 * pointers to -1 terminated lists and rates in 100 kbps units. */
451 int *supp_rates[NUM_IEEE80211_MODES];
452 int *basic_rates[NUM_IEEE80211_MODES];
453
454 int rts_threshold;
f0706e82
JB		 455 int fragmentation_threshold;
456 int short_retry_limit; /* dot11ShortRetryLimit */
457 int long_retry_limit; /* dot11LongRetryLimit */
f0706e82
JB		 458
459 struct crypto_blkcipher *wep_tx_tfm;
460 struct crypto_blkcipher *wep_rx_tfm;
461 u32 wep_iv;
f0706e82
JB		 462
463 int bridge_packets; /* bridge packets between associated stations and
464 * deliver multicast frames both back to wireless
465 * media and to the local net stack */
466
467 ieee80211_rx_handler *rx_pre_handlers;
468 ieee80211_rx_handler *rx_handlers;
469 ieee80211_tx_handler *tx_handlers;
470
79010420
JB		 471 struct list_head interfaces;
472
ece8eddd
ZY		 473 bool sta_sw_scanning;
474 bool sta_hw_scanning;
f0706e82
JB		 475 int scan_channel_idx;
476 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
477 unsigned long last_scan_completed;
478 struct delayed_work scan_work;
479 struct net_device *scan_dev;
480 struct ieee80211_channel *oper_channel, *scan_channel;
481 struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
482 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
483 size_t scan_ssid_len;
484 struct list_head sta_bss_list;
485 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
486 spinlock_t sta_bss_lock;
f0706e82
JB		 487
488 /* SNMP counters */
489 /* dot11CountersTable */
490 u32 dot11TransmittedFragmentCount;
491 u32 dot11MulticastTransmittedFrameCount;
492 u32 dot11FailedCount;
493 u32 dot11RetryCount;
494 u32 dot11MultipleRetryCount;
495 u32 dot11FrameDuplicateCount;
496 u32 dot11ReceivedFragmentCount;
497 u32 dot11MulticastReceivedFrameCount;
498 u32 dot11TransmittedFrameCount;
499 u32 dot11WEPUndecryptableCount;
500
501#ifdef CONFIG_MAC80211_LEDS
502 int tx_led_counter, rx_led_counter;
47f0c502
MB		 503 struct led_trigger *tx_led, *rx_led, *assoc_led;
504 char tx_led_name[32], rx_led_name[32], assoc_led_name[32];
f0706e82
JB		 505#endif
506
507 u32 channel_use;
508 u32 channel_use_raw;
f0706e82 509
e9f207f0
JB		 510#ifdef CONFIG_MAC80211_DEBUGFS
511 struct work_struct sta_debugfs_add;
512#endif
513
f0706e82
JB		 514#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
515 /* TX/RX handler statistics */
516 unsigned int tx_handlers_drop;
517 unsigned int tx_handlers_queued;
518 unsigned int tx_handlers_drop_unencrypted;
519 unsigned int tx_handlers_drop_fragment;
520 unsigned int tx_handlers_drop_wep;
521 unsigned int tx_handlers_drop_not_assoc;
522 unsigned int tx_handlers_drop_unauth_port;
523 unsigned int rx_handlers_drop;
524 unsigned int rx_handlers_queued;
525 unsigned int rx_handlers_drop_nullfunc;
526 unsigned int rx_handlers_drop_defrag;
527 unsigned int rx_handlers_drop_short;
528 unsigned int rx_handlers_drop_passive_scan;
529 unsigned int tx_expand_skb_head;
530 unsigned int tx_expand_skb_head_cloned;
531 unsigned int rx_expand_skb_head;
532 unsigned int rx_expand_skb_head2;
533 unsigned int rx_handlers_fragments;
534 unsigned int tx_status_drop;
535 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
536 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
537#define I802_DEBUG_INC(c) (c)++
538#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
539#define I802_DEBUG_INC(c) do { } while (0)
540#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
541
542
f0706e82
JB		 543 int total_ps_buffered; /* total number of all buffered unicast and
544 * multicast packets for power saving stations
545 */
f0706e82
JB		 546 int wifi_wme_noack_test;
547 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
548
549 unsigned int enabled_modes; /* bitfield of allowed modes;
550 * (1 << MODE_*) */
551 unsigned int hw_modes; /* bitfield of supported hardware modes;
552 * (1 << MODE_*) */
553
e9f207f0
JB		 554#ifdef CONFIG_MAC80211_DEBUGFS
555 struct local_debugfsdentries {
556 struct dentry *channel;
557 struct dentry *frequency;
e9f207f0
JB		 558 struct dentry *antenna_sel_tx;
559 struct dentry *antenna_sel_rx;
560 struct dentry *bridge_packets;
e9f207f0
JB		 561 struct dentry *rts_threshold;
562 struct dentry *fragmentation_threshold;
563 struct dentry *short_retry_limit;
564 struct dentry *long_retry_limit;
565 struct dentry *total_ps_buffered;
566 struct dentry *mode;
567 struct dentry *wep_iv;
e9f207f0
JB		 568 struct dentry *modes;
569 struct dentry *statistics;
570 struct local_debugfsdentries_statsdentries {
571 struct dentry *transmitted_fragment_count;
572 struct dentry *multicast_transmitted_frame_count;
573 struct dentry *failed_count;
574 struct dentry *retry_count;
575 struct dentry *multiple_retry_count;
576 struct dentry *frame_duplicate_count;
577 struct dentry *received_fragment_count;
578 struct dentry *multicast_received_frame_count;
579 struct dentry *transmitted_frame_count;
580 struct dentry *wep_undecryptable_count;
581 struct dentry *num_scans;
582#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
583 struct dentry *tx_handlers_drop;
584 struct dentry *tx_handlers_queued;
585 struct dentry *tx_handlers_drop_unencrypted;
586 struct dentry *tx_handlers_drop_fragment;
587 struct dentry *tx_handlers_drop_wep;
588 struct dentry *tx_handlers_drop_not_assoc;
589 struct dentry *tx_handlers_drop_unauth_port;
590 struct dentry *rx_handlers_drop;
591 struct dentry *rx_handlers_queued;
592 struct dentry *rx_handlers_drop_nullfunc;
593 struct dentry *rx_handlers_drop_defrag;
594 struct dentry *rx_handlers_drop_short;
595 struct dentry *rx_handlers_drop_passive_scan;
596 struct dentry *tx_expand_skb_head;
597 struct dentry *tx_expand_skb_head_cloned;
598 struct dentry *rx_expand_skb_head;
599 struct dentry *rx_expand_skb_head2;
600 struct dentry *rx_handlers_fragments;
601 struct dentry *tx_status_drop;
602 struct dentry *wme_tx_queue;
603 struct dentry *wme_rx_queue;
604#endif
605 struct dentry *dot11ACKFailureCount;
606 struct dentry *dot11RTSFailureCount;
607 struct dentry *dot11FCSErrorCount;
608 struct dentry *dot11RTSSuccessCount;
609 } stats;
610 struct dentry *stations;
611 struct dentry *keys;
612 } debugfs;
613#endif
f0706e82
JB		 614};
615
616static inline struct ieee80211_local *hw_to_local(
617 struct ieee80211_hw *hw)
618{
619 return container_of(hw, struct ieee80211_local, hw);
620}
621
622static inline struct ieee80211_hw *local_to_hw(
623 struct ieee80211_local *local)
624{
625 return &local->hw;
626}
627
628enum ieee80211_link_state_t {
629 IEEE80211_LINK_STATE_XOFF = 0,
630 IEEE80211_LINK_STATE_PENDING,
631};
632
633struct sta_attribute {
634 struct attribute attr;
635 ssize_t (*show)(const struct sta_info *, char *buf);
636 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
637};
638
30ccb088 639static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 640{
641 /*
30ccb088 642 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 643 * so this line may not be changed to use the __set_bit() format.
644 */
30ccb088 645 bss->tim[aid / 8] |= (1 << (aid % 8));
f0706e82
JB		 646}
647
648static inline void bss_tim_set(struct ieee80211_local *local,
30ccb088 649 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 650{
be8755e1 651 read_lock_bh(&local->sta_lock);
f0706e82 652 __bss_tim_set(bss, aid);
be8755e1 653 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 654}
655
30ccb088 656static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
f0706e82
JB		 657{
658 /*
30ccb088 659 * This format has been mandated by the IEEE specifications,
f0706e82
JB		 660 * so this line may not be changed to use the __clear_bit() format.
661 */
30ccb088 662 bss->tim[aid / 8] &= ~(1 << (aid % 8));
f0706e82
JB		 663}
664
665static inline void bss_tim_clear(struct ieee80211_local *local,
30ccb088 666 struct ieee80211_if_ap *bss, u16 aid)
f0706e82 667{
be8755e1 668 read_lock_bh(&local->sta_lock);
f0706e82 669 __bss_tim_clear(bss, aid);
be8755e1 670 read_unlock_bh(&local->sta_lock);
f0706e82
JB		 671}
672
673/**
674 * ieee80211_is_erp_rate - Check if a rate is an ERP rate
675 * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
676 * @rate: Transmission rate to check, in 100 kbps
677 *
678 * Check if a given rate is an Extended Rate PHY (ERP) rate.
679 */
680static inline int ieee80211_is_erp_rate(int phymode, int rate)
681{
682 if (phymode == MODE_IEEE80211G) {
683 if (rate != 10 && rate != 20 &&
684 rate != 55 && rate != 110)
685 return 1;
686 }
687 return 0;
688}
689
571ecf67
JB		 690static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
691{
692 return compare_ether_addr(raddr, addr) == 0 ||
693 is_broadcast_ether_addr(raddr);
694}
695
696
f0706e82
JB		 697/* ieee80211.c */
698int ieee80211_hw_config(struct ieee80211_local *local);
699int ieee80211_if_config(struct net_device *dev);
700int ieee80211_if_config_beacon(struct net_device *dev);
f0706e82
JB		 701void ieee80211_prepare_rates(struct ieee80211_local *local,
702 struct ieee80211_hw_mode *mode);
703void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
704int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
705void ieee80211_if_setup(struct net_device *dev);
571ecf67
JB		 706struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
707 int phymode, int hwrate);
d3c990fb
RR		 708int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
709 struct ieee80211_ht_info *req_ht_cap,
710 struct ieee80211_ht_bss_info *req_bss_cap);
f0706e82
JB		 711
712/* ieee80211_ioctl.c */
713extern const struct iw_handler_def ieee80211_iw_handler_def;
714
f0706e82
JB		 715
716/* Least common multiple of the used rates (in 100 kbps). This is used to
717 * calculate rate_inv values for each rate so that only integers are needed. */
718#define CHAN_UTIL_RATE_LCM 95040
719/* 1 usec is 1/8 * (95040/10) = 1188 */
720#define CHAN_UTIL_PER_USEC 1188
721/* Amount of bits to shift the result right to scale the total utilization
722 * to values that will not wrap around 32-bit integers. */
723#define CHAN_UTIL_SHIFT 9
724/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
725 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
726 * raw value with about 23 should give utilization in 10th of a percentage
727 * (1/1000). However, utilization is only estimated and not all intervals
728 * between frames etc. are calculated. 18 seems to give numbers that are closer
729 * to the real maximum. */
730#define CHAN_UTIL_PER_10MS 18
731#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
732#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
733
734
735/* ieee80211_ioctl.c */
736int ieee80211_set_compression(struct ieee80211_local *local,
737 struct net_device *dev, struct sta_info *sta);
f0706e82
JB		 738int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
739/* ieee80211_sta.c */
740void ieee80211_sta_timer(unsigned long data);
741void ieee80211_sta_work(struct work_struct *work);
742void ieee80211_sta_scan_work(struct work_struct *work);
743void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
744 struct ieee80211_rx_status *rx_status);
745int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
746int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
747int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
748int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
749void ieee80211_sta_req_auth(struct net_device *dev,
750 struct ieee80211_if_sta *ifsta);
751int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
ece8eddd
ZY		 752ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
753 struct sk_buff *skb,
f0706e82
JB		 754 struct ieee80211_rx_status *rx_status);
755void ieee80211_rx_bss_list_init(struct net_device *dev);
756void ieee80211_rx_bss_list_deinit(struct net_device *dev);
757int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
758struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
759 struct sk_buff *skb, u8 *bssid,
760 u8 *addr);
761int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
762int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
d9430a32
DD		 763void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
764void ieee80211_reset_erp_info(struct net_device *dev);
c7153508
RR		 765int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
766 struct ieee80211_ht_info *ht_info);
767int ieee80211_ht_addt_info_ie_to_ht_bss_info(
768 struct ieee80211_ht_addt_info *ht_add_info_ie,
769 struct ieee80211_ht_bss_info *bss_info);
07db2183
RR		 770void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
771 u16 tid, u16 initiator, u16 reason);
772void sta_rx_agg_session_timer_expired(unsigned long data);
f0706e82
JB		 773/* ieee80211_iface.c */
774int ieee80211_if_add(struct net_device *dev, const char *name,
775 struct net_device **new_dev, int type);
776void ieee80211_if_set_type(struct net_device *dev, int type);
777void ieee80211_if_reinit(struct net_device *dev);
778void __ieee80211_if_del(struct ieee80211_local *local,
779 struct ieee80211_sub_if_data *sdata);
780int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
781void ieee80211_if_free(struct net_device *dev);
782void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
f0706e82 783
fd8bacc9
DD		 784/* regdomain.c */
785void ieee80211_regdomain_init(void);
786void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
787
571ecf67
JB		 788/* rx handling */
789extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
790extern ieee80211_rx_handler ieee80211_rx_handlers[];
791
e2ebc74d
JB		 792/* tx handling */
793extern ieee80211_tx_handler ieee80211_tx_handlers[];
794void ieee80211_clear_tx_pending(struct ieee80211_local *local);
795void ieee80211_tx_pending(unsigned long data);
796int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
797int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
798int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
e2ebc74d 799
c2d1560a
JB		 800/* utility functions/constants */
801extern void *mac80211_wiphy_privid; /* for wiphy privid */
802extern const unsigned char rfc1042_header[6];
803extern const unsigned char bridge_tunnel_header[6];
804u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
c2d1560a
JB		 805int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
806 int rate, int erp, int short_preamble);
eb063c17
JB		 807void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
808 struct ieee80211_hdr *hdr);
f0706e82
JB		 809
810#endif /* IEEE80211_I_H */
ubuntu-zesty-kernel mirror