ieee80211_i.h 34 KB
Newer Older
1
2
3
4
/*
 * Copyright 2002-2005, Instant802 Networks, Inc.
 * Copyright 2005, Devicescape Software, Inc.
 * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
5
 * Copyright 2007-2008	Johannes Berg <johannes@sipsolutions.net>
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef IEEE80211_I_H
#define IEEE80211_I_H

#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/if_ether.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/types.h>
#include <linux/spinlock.h>
25
#include <linux/etherdevice.h>
26
#include <net/cfg80211.h>
27
#include <net/mac80211.h>
Johannes Berg's avatar
Johannes Berg committed
28
#include "key.h"
29
30
#include "sta_info.h"

31
struct ieee80211_local;
32
33
34
35
36
37
38
39
40
41
42
43

/* Maximum number of broadcast/multicast frames to buffer when some of the
 * associated stations are using power saving. */
#define AP_MAX_BC_BUFFER 128

/* Maximum number of frames buffered to all STAs, including multicast frames.
 * Note: increasing this limit increases the potential memory requirement. Each
 * frame can be up to about 2 kB long. */
#define TOTAL_MAX_TX_BUFFER 512

/* Required encryption head and tailroom */
#define IEEE80211_ENCRYPT_HEADROOM 8
44
#define IEEE80211_ENCRYPT_TAILROOM 18
45
46
47
48
49
50
51

/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
 * reception of at least three fragmented frames. This limit can be increased
 * by changing this define, at the cost of slower frame reassembly and
 * increased memory use (about 2 kB of RAM per entry). */
#define IEEE80211_FRAGMENT_MAX 4

52
53
54
55
56
57
/*
 * Time after which we ignore scan results and no longer report/use
 * them in any way.
 */
#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)

58
59
#define TU_TO_EXP_TIME(x)	(jiffies + usecs_to_jiffies((x) * 1024))

60
61
62
63
64
65
66
67
68
69
70
71
struct ieee80211_fragment_entry {
	unsigned long first_frag_time;
	unsigned int seq;
	unsigned int rx_queue;
	unsigned int last_frag;
	unsigned int extra_len;
	struct sk_buff_head skb_list;
	int ccmp; /* Whether fragments were encrypted with CCMP */
	u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
};


72
struct ieee80211_bss {
73
74
	/* Yes, this is a hack */
	struct cfg80211_bss cbss;
75

76
77
	/* don't want to look up all the time */
	size_t ssid_len;
78
	u8 ssid[IEEE80211_MAX_SSID_LEN];
79

80
	u8 dtim_period;
81

82
	bool wmm_used;
83
84
85

	unsigned long last_probe_resp;

86
87
88
#ifdef CONFIG_MAC80211_MESH
	u8 *mesh_id;
	size_t mesh_id_len;
89
	u8 *mesh_cfg;
Johannes Berg's avatar
Johannes Berg committed
90
#endif
91

92
93
94
95
#define IEEE80211_MAX_SUPP_RATES 32
	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
	size_t supp_rates_len;

96
97
	/*
	 * During assocation, we save an ERP value from a probe response so
98
99
	 * that we can feed ERP info to the driver when handling the
	 * association completes. these fields probably won't be up-to-date
100
101
102
	 * otherwise, you probably don't want to use them.
	 */
	bool has_erp_value;
103
	u8 erp_value;
104
105
};

106
static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
Johannes Berg's avatar
Johannes Berg committed
107
108
109
110
111
112
113
{
#ifdef CONFIG_MAC80211_MESH
	return bss->mesh_cfg;
#endif
	return NULL;
}

114
static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
Johannes Berg's avatar
Johannes Berg committed
115
116
117
118
119
120
121
{
#ifdef CONFIG_MAC80211_MESH
	return bss->mesh_id;
#endif
	return NULL;
}

122
static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
Johannes Berg's avatar
Johannes Berg committed
123
124
125
126
127
128
129
{
#ifdef CONFIG_MAC80211_MESH
	return bss->mesh_id_len;
#endif
	return 0;
}

130

131
132
133
134
135
typedef unsigned __bitwise__ ieee80211_tx_result;
#define TX_CONTINUE	((__force ieee80211_tx_result) 0u)
#define TX_DROP		((__force ieee80211_tx_result) 1u)
#define TX_QUEUED	((__force ieee80211_tx_result) 2u)

136
137
138
139
140
141
142
143
144
145
146
147
148
149
#define IEEE80211_TX_FRAGMENTED		BIT(0)
#define IEEE80211_TX_UNICAST		BIT(1)
#define IEEE80211_TX_PS_BUFFERED	BIT(2)

struct ieee80211_tx_data {
	struct sk_buff *skb;
	struct net_device *dev;
	struct ieee80211_local *local;
	struct ieee80211_sub_if_data *sdata;
	struct sta_info *sta;
	struct ieee80211_key *key;

	struct ieee80211_channel *channel;

150
	u16 ethertype;
151
	unsigned int flags;
152
153
154
};


155
typedef unsigned __bitwise__ ieee80211_rx_result;
Johannes Berg's avatar
Johannes Berg committed
156
157
158
159
#define RX_CONTINUE		((__force ieee80211_rx_result) 0u)
#define RX_DROP_UNUSABLE	((__force ieee80211_rx_result) 1u)
#define RX_DROP_MONITOR		((__force ieee80211_rx_result) 2u)
#define RX_QUEUED		((__force ieee80211_rx_result) 3u)
160

161
#define IEEE80211_RX_IN_SCAN		BIT(0)
162
/* frame is destined to interface currently processed (incl. multicast frames) */
163
164
165
166
167
168
#define IEEE80211_RX_RA_MATCH		BIT(1)
#define IEEE80211_RX_AMSDU		BIT(2)
#define IEEE80211_RX_CMNTR_REPORTED	BIT(3)
#define IEEE80211_RX_FRAGMENTED		BIT(4)

struct ieee80211_rx_data {
169
170
171
172
173
174
	struct sk_buff *skb;
	struct net_device *dev;
	struct ieee80211_local *local;
	struct ieee80211_sub_if_data *sdata;
	struct sta_info *sta;
	struct ieee80211_key *key;
175
176
	struct ieee80211_rx_status *status;
	struct ieee80211_rate *rate;
177
178

	unsigned int flags;
179
180
181
182
	int sent_ps_buffered;
	int queue;
	u32 tkip_iv32;
	u16 tkip_iv16;
183
184
};

185
186
187
188
189
190
struct beacon_data {
	u8 *head, *tail;
	int head_len, tail_len;
	int dtim_period;
};

191
struct ieee80211_if_ap {
192
	struct beacon_data *beacon;
193

194
195
	struct list_head vlans;

196
197
	/* yes, this looks ugly, but guarantees that we can later use
	 * bitmap_empty :)
198
	 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
199
200
	u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
	struct sk_buff_head ps_bc_buf;
201
	atomic_t num_sta_ps; /* number of stations in PS mode */
202
	int dtim_count;
203
204
205
206
};

struct ieee80211_if_wds {
	struct sta_info *sta;
207
	u8 remote_addr[ETH_ALEN];
208
209
210
};

struct ieee80211_if_vlan {
211
	struct list_head list;
212
213
};

214
struct mesh_stats {
215
216
217
	__u32 fwded_mcast;		/* Mesh forwarded multicast frames */
	__u32 fwded_unicast;		/* Mesh forwarded unicast frames */
	__u32 fwded_frames;		/* Mesh total forwarded frames */
218
219
220
221
222
223
224
225
226
227
228
229
230
	__u32 dropped_frames_ttl;	/* Not transmitted since mesh_ttl == 0*/
	__u32 dropped_frames_no_route;	/* Not transmitted, no route found */
	atomic_t estab_plinks;
};

#define PREQ_Q_F_START		0x1
#define PREQ_Q_F_REFRESH	0x2
struct mesh_preq_queue {
	struct list_head list;
	u8 dst[ETH_ALEN];
	u8 flags;
};

231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
enum ieee80211_mgd_state {
	IEEE80211_MGD_STATE_IDLE,
	IEEE80211_MGD_STATE_PROBE,
	IEEE80211_MGD_STATE_AUTH,
	IEEE80211_MGD_STATE_ASSOC,
};

struct ieee80211_mgd_work {
	struct list_head list;
	struct ieee80211_bss *bss;
	int ie_len;
	u8 prev_bssid[ETH_ALEN];
	u8 ssid[IEEE80211_MAX_SSID_LEN];
	u8 ssid_len;
	unsigned long timeout;
	enum ieee80211_mgd_state state;
	u16 auth_alg, auth_transaction;

	int tries;

Johannes Berg's avatar
Johannes Berg committed
251
252
253
	u8 key[WLAN_KEY_LEN_WEP104];
	u8 key_len, key_idx;

254
255
256
257
	/* must be last */
	u8 ie[0]; /* for auth or assoc frame, not probe */
};

258
/* flags used in struct ieee80211_if_managed.flags */
259
enum ieee80211_sta_flags {
260
261
262
263
264
265
266
	IEEE80211_STA_BEACON_POLL	= BIT(0),
	IEEE80211_STA_CONNECTION_POLL	= BIT(1),
	IEEE80211_STA_CONTROL_PORT	= BIT(2),
	IEEE80211_STA_WMM_ENABLED	= BIT(3),
	IEEE80211_STA_DISABLE_11N	= BIT(4),
	IEEE80211_STA_CSA_RECEIVED	= BIT(5),
	IEEE80211_STA_MFP_ENABLED	= BIT(6),
267
268
};

269
/* flags for MLME request */
270
271
272
enum ieee80211_sta_request {
	IEEE80211_STA_REQ_SCAN,
};
273

274
struct ieee80211_if_managed {
275
	struct timer_list timer;
276
277
	struct timer_list conn_mon_timer;
	struct timer_list bcn_mon_timer;
Sujith's avatar
Sujith committed
278
	struct timer_list chswitch_timer;
279
	struct work_struct work;
280
	struct work_struct monitor_work;
Sujith's avatar
Sujith committed
281
	struct work_struct chswitch_work;
282
	struct work_struct beacon_loss_work;
283

284
	unsigned long probe_timeout;
285
	int probe_send_count;
286

287
288
	struct mutex mtx;
	struct ieee80211_bss *associated;
289
	struct ieee80211_mgd_work *old_associate_work;
290
	struct list_head work_list;
291

292
	u8 bssid[ETH_ALEN];
293

294
	u16 aid;
295
	u16 capab;
296

297
298
	struct sk_buff_head skb_queue;

299
	unsigned long timers_running; /* used for quiesce/restart */
300
301
	bool powersave; /* powersave requested for this iface */

302
303
	unsigned long request;

304
	unsigned int flags;
305

306
307
	u32 beacon_crc;

308
309
310
311
312
313
	enum {
		IEEE80211_MFP_DISABLED,
		IEEE80211_MFP_OPTIONAL,
		IEEE80211_MFP_REQUIRED
	} mfp; /* management frame protection */

314
315
316
	int wmm_last_param_set;
};

317
318
319
320
321
322
323
324
325
326
enum ieee80211_ibss_request {
	IEEE80211_IBSS_REQ_RUN	= 0,
};

struct ieee80211_if_ibss {
	struct timer_list timer;
	struct work_struct work;

	struct sk_buff_head skb_queue;

327
328
	unsigned long request;
	unsigned long last_scan_completed;
329
330
331

	bool timer_running;

332
333
	bool fixed_bssid;
	bool fixed_channel;
Johannes Berg's avatar
Johannes Berg committed
334
	bool privacy;
335
336

	u8 bssid[ETH_ALEN];
337
338
339
340
	u8 ssid[IEEE80211_MAX_SSID_LEN];
	u8 ssid_len, ie_len;
	u8 *ie;
	struct ieee80211_channel *channel;
341
342

	unsigned long ibss_join_req;
343
344
	/* probe response/beacon for IBSS */
	struct sk_buff *presp, *skb;
345
346
347
348
349
350
351

	enum {
		IEEE80211_IBSS_MLME_SEARCH,
		IEEE80211_IBSS_MLME_JOINED,
	} state;
};

352
353
354
355
356
357
struct ieee80211_if_mesh {
	struct work_struct work;
	struct timer_list housekeeping_timer;
	struct timer_list mesh_path_timer;
	struct sk_buff_head skb_queue;

358
359
	unsigned long timers_running;

360
	unsigned long wrkq_flags;
361
362
363
364
365
366
367
368
369

	u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
	size_t mesh_id_len;
	/* Active Path Selection Protocol Identifier */
	u8 mesh_pp_id[4];
	/* Active Path Selection Metric Identifier */
	u8 mesh_pm_id[4];
	/* Congestion Control Mode Identifier */
	u8 mesh_cc_id[4];
370
371
372
373
	/* Synchronization Protocol Identifier */
	u8 mesh_sp_id[4];
	/* Authentication Protocol Identifier */
	u8 mesh_auth_id[4];
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
	/* Local mesh Destination Sequence Number */
	u32 dsn;
	/* Last used PREQ ID */
	u32 preq_id;
	atomic_t mpaths;
	/* Timestamp of last DSN update */
	unsigned long last_dsn_update;
	/* Timestamp of last DSN sent */
	unsigned long last_preq;
	struct mesh_rmc *rmc;
	spinlock_t mesh_preq_queue_lock;
	struct mesh_preq_queue preq_queue;
	int preq_queue_len;
	struct mesh_stats mshstats;
	struct mesh_config mshcfg;
	u32 mesh_seqnum;
	bool accepting_plinks;
};
Johannes Berg's avatar
Johannes Berg committed
392
393

#ifdef CONFIG_MAC80211_MESH
394
395
#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name)	\
	do { (msh)->mshstats.name++; } while (0)
Johannes Berg's avatar
Johannes Berg committed
396
#else
397
#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
Johannes Berg's avatar
Johannes Berg committed
398
399
	do { } while (0)
#endif
400

401
402
403
404
405
406
407
408
409
410
411
412
413
/**
 * enum ieee80211_sub_if_data_flags - virtual interface flags
 *
 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
 * @IEEE80211_SDATA_PROMISC: interface is promisc
 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
 *	associated stations and deliver multicast frames both
 *	back to wireless media and to the local net stack.
 */
enum ieee80211_sub_if_data_flags {
	IEEE80211_SDATA_ALLMULTI		= BIT(0),
	IEEE80211_SDATA_PROMISC			= BIT(1),
414
415
	IEEE80211_SDATA_OPERATING_GMODE		= BIT(2),
	IEEE80211_SDATA_DONT_BRIDGE_PACKETS	= BIT(3),
416
417
};

418
419
420
421
422
struct ieee80211_sub_if_data {
	struct list_head list;

	struct wireless_dev wdev;

423
424
425
	/* keys */
	struct list_head key_list;

426
427
428
	struct net_device *dev;
	struct ieee80211_local *local;

429
	unsigned int flags;
430

431
432
	int drop_unencrypted;

433
434
435
436
437
438
	/*
	 * keep track of whether the HT opmode (stored in
	 * vif.bss_info.ht_operation_mode) is valid.
	 */
	bool ht_opmode_valid;

439
440
441
442
443
	/* Fragment table for host-based reassembly */
	struct ieee80211_fragment_entry	fragments[IEEE80211_FRAGMENT_MAX];
	unsigned int fragment_next;

#define NUM_DEFAULT_KEYS 4
444
445
#define NUM_DEFAULT_MGMT_KEYS 2
	struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
446
	struct ieee80211_key *default_key;
447
	struct ieee80211_key *default_mgmt_key;
448

449
450
	u16 sequence_number;

451
	/*
452
453
454
	 * AP this belongs to: self in AP mode and
	 * corresponding AP in VLAN mode, NULL for
	 * all others (might be needed later in IBSS)
455
	 */
456
457
458
459
	struct ieee80211_if_ap *bss;

	int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
	int max_ratectrl_rateidx; /* max TX rateidx for rate control */
460
461
462
463
464

	union {
		struct ieee80211_if_ap ap;
		struct ieee80211_if_wds wds;
		struct ieee80211_if_vlan vlan;
465
466
		struct ieee80211_if_managed mgd;
		struct ieee80211_if_ibss ibss;
467
468
469
#ifdef CONFIG_MAC80211_MESH
		struct ieee80211_if_mesh mesh;
#endif
470
		u32 mntr_flags;
471
	} u;
472
473
474
475
476
477
478
479
480

#ifdef CONFIG_MAC80211_DEBUGFS
	struct dentry *debugfsdir;
	union {
		struct {
			struct dentry *drop_unencrypted;
			struct dentry *bssid;
			struct dentry *aid;
			struct dentry *capab;
481
482
			struct dentry *force_unicast_rateidx;
			struct dentry *max_ratectrl_rateidx;
483
484
485
486
487
488
489
490
491
492
493
494
		} sta;
		struct {
			struct dentry *drop_unencrypted;
			struct dentry *num_sta_ps;
			struct dentry *dtim_count;
			struct dentry *force_unicast_rateidx;
			struct dentry *max_ratectrl_rateidx;
			struct dentry *num_buffered_multicast;
		} ap;
		struct {
			struct dentry *drop_unencrypted;
			struct dentry *peer;
495
496
			struct dentry *force_unicast_rateidx;
			struct dentry *max_ratectrl_rateidx;
497
498
499
		} wds;
		struct {
			struct dentry *drop_unencrypted;
500
501
			struct dentry *force_unicast_rateidx;
			struct dentry *max_ratectrl_rateidx;
502
503
504
505
506
		} vlan;
		struct {
			struct dentry *mode;
		} monitor;
	} debugfs;
507
508
	struct {
		struct dentry *default_key;
509
		struct dentry *default_mgmt_key;
510
	} common_debugfs;
511
512
513
514

#ifdef CONFIG_MAC80211_MESH
	struct dentry *mesh_stats_dir;
	struct {
515
516
		struct dentry *fwded_mcast;
		struct dentry *fwded_unicast;
517
518
519
520
		struct dentry *fwded_frames;
		struct dentry *dropped_frames_ttl;
		struct dentry *dropped_frames_no_route;
		struct dentry *estab_plinks;
Johannes Berg's avatar
Johannes Berg committed
521
		struct timer_list mesh_path_timer;
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
	} mesh_stats;

	struct dentry *mesh_config_dir;
	struct {
		struct dentry *dot11MeshRetryTimeout;
		struct dentry *dot11MeshConfirmTimeout;
		struct dentry *dot11MeshHoldingTimeout;
		struct dentry *dot11MeshMaxRetries;
		struct dentry *dot11MeshTTL;
		struct dentry *auto_open_plinks;
		struct dentry *dot11MeshMaxPeerLinks;
		struct dentry *dot11MeshHWMPactivePathTimeout;
		struct dentry *dot11MeshHWMPpreqMinInterval;
		struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
		struct dentry *dot11MeshHWMPmaxPREQretries;
		struct dentry *path_refresh_time;
		struct dentry *min_discovery_timeout;
	} mesh_config;
#endif

542
#endif
543
544
	/* must be last, dynamically sized area in this! */
	struct ieee80211_vif vif;
545
546
};

547
548
549
550
551
552
static inline
struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
{
	return container_of(p, struct ieee80211_sub_if_data, vif);
}

553
554
555
556
557
558
559
560
561
562
563
564
565
static inline void
ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
			    u8 mesh_id_len, u8 *mesh_id)
{
#ifdef CONFIG_MAC80211_MESH
	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
	ifmsh->mesh_id_len = mesh_id_len;
	memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
#else
	WARN_ON(1);
#endif
}

566
567
568
enum {
	IEEE80211_RX_MSG	= 1,
	IEEE80211_TX_STATUS_MSG	= 2,
569
570
	IEEE80211_DELBA_MSG	= 3,
	IEEE80211_ADDBA_MSG	= 4,
571
572
};

573
574
enum queue_stop_reason {
	IEEE80211_QUEUE_STOP_REASON_DRIVER,
575
	IEEE80211_QUEUE_STOP_REASON_PS,
576
577
	IEEE80211_QUEUE_STOP_REASON_CSA,
	IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
578
	IEEE80211_QUEUE_STOP_REASON_SUSPEND,
579
	IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
580
581
};

582
583
584
585
586
587
588
589
590
591
/**
 * mac80211 scan flags - currently active scan mode
 *
 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
 *	well be on the operating channel
 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
 *	determine if we are on the operating channel or not
 * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning,
 *	gets only set in conjunction with SCAN_SW_SCANNING
 */
592
593
enum {
	SCAN_SW_SCANNING,
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
	SCAN_HW_SCANNING,
	SCAN_OFF_CHANNEL,
};

/**
 * enum mac80211_scan_state - scan state machine states
 *
 * @SCAN_DECISION: Main entry point to the scan state machine, this state
 *	determines if we should keep on scanning or switch back to the
 *	operating channel
 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
 * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
 *	about us leaving the channel and stop all associated STA interfaces
 * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
 *	AP about us being back and restart all associated STA interfaces
 */
enum mac80211_scan_state {
	SCAN_DECISION,
	SCAN_SET_CHANNEL,
	SCAN_SEND_PROBE,
	SCAN_LEAVE_OPER_CHANNEL,
	SCAN_ENTER_OPER_CHANNEL,
617
618
};

619
620
621
622
623
624
625
626
struct ieee80211_local {
	/* embed the driver visible part.
	 * don't cast (use the static inlines below), but we keep
	 * it first anyway so they become a no-op */
	struct ieee80211_hw hw;

	const struct ieee80211_ops *ops;

627
628
629
630
631
632
	/*
	 * private workqueue to mac80211. mac80211 makes this accessible
	 * via ieee80211_queue_work()
	 */
	struct workqueue_struct *workqueue;

633
	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
634
	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
635
	spinlock_t queue_stop_reason_lock;
636

637
	int open_count;
638
	int monitors, cooked_mntrs;
639
	/* number of interfaces with corresponding FIF_ flags */
640
	int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll;
641
	unsigned int filter_flags; /* FIF_* */
642
	struct iw_statistics wstats;
Johannes Berg's avatar
Johannes Berg committed
643
644
645
646

	/* protects the aggregated multicast list and filter calls */
	spinlock_t filter_lock;

647
648
649
	/* used for uploading changed mc list */
	struct work_struct reconfig_filter;

Johannes Berg's avatar
Johannes Berg committed
650
651
652
653
	/* aggregated multicast list */
	struct dev_addr_list *mc_list;
	int mc_count;

654
	bool tim_in_locked_section; /* see ieee80211_beacon_get() */
655
656
657
658
659
660
661
662
663

	/*
	 * suspended is true if we finished all the suspend _and_ we have
	 * not yet come up from resume. This is to be used by mac80211
	 * to ensure driver sanity during suspend and mac80211's own
	 * sanity. It can eventually be used for WoW as well.
	 */
	bool suspended;

Johannes Berg's avatar
Johannes Berg committed
664
665
666
667
668
669
670
671
	/*
	 * Resuming is true while suspended, but when we're reprogramming the
	 * hardware -- at that time it's allowed to use ieee80211_queue_work()
	 * again even though some other parts of the stack are still suspended
	 * and we still drop received frames to avoid waking the stack.
	 */
	bool resuming;

672
673
674
675
676
677
	/*
	 * quiescing is true during the suspend process _only_ to
	 * ease timer cancelling etc.
	 */
	bool quiescing;

678
679
680
	/* device is started */
	bool started;

681
	int tx_headroom; /* required headroom for hardware/radiotap */
682
683
684
685
686
687
688
689
690
691

	/* Tasklet and skb queue to process calls from IRQ mode. All frames
	 * added to skb_queue will be processed, but frames in
	 * skb_queue_unreliable may be dropped if the total length of these
	 * queues increases over the limit. */
#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
	struct tasklet_struct tasklet;
	struct sk_buff_head skb_queue;
	struct sk_buff_head skb_queue_unreliable;

692
693
694
695
	/* Station data */
	/*
	 * The lock only protects the list, hash, timer and counter
	 * against manipulation, reads are done in RCU. Additionally,
696
	 * the lock protects each BSS's TIM bitmap.
697
698
699
	 */
	spinlock_t sta_lock;
	unsigned long num_sta;
700
701
702
	struct list_head sta_list;
	struct sta_info *sta_hash[STA_HASH_SIZE];
	struct timer_list sta_cleanup;
703
	int sta_generation;
704

705
	struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
706
707
	struct tasklet_struct tx_pending_tasklet;

708
709
710
711
712
713
714
715
	/*
	 * This lock is used to prevent concurrent A-MPDU
	 * session start/stop processing, this thus also
	 * synchronises the ->ampdu_action() callback to
	 * drivers and limits it to one at a time.
	 */
	spinlock_t ampdu_lock;

716
717
	/* number of interfaces with corresponding IFF_ flags */
	atomic_t iff_allmultis, iff_promiscs;
718
719
720
721
722
723
724

	struct rate_control_ref *rate_ctrl;

	struct crypto_blkcipher *wep_tx_tfm;
	struct crypto_blkcipher *wep_rx_tfm;
	u32 wep_iv;

725
	/* see iface.c */
726
	struct list_head interfaces;
727
	struct mutex iflist_mtx;
728

729
730
731
732
733
734
735
	/*
	 * Key lock, protects sdata's key_list and sta_info's
	 * key pointers (write access, they're RCU.)
	 */
	spinlock_t key_lock;


736
	/* Scanning and BSS list */
737
	struct mutex scan_mtx;
738
	unsigned long scanning;
739
	struct cfg80211_ssid scan_ssid;
740
	struct cfg80211_scan_request *int_scan_req;
741
742
	struct cfg80211_scan_request *scan_req;
	struct ieee80211_channel *scan_channel;
743
744
	const u8 *orig_ies;
	int orig_ies_len;
745
	int scan_channel_idx;
746
	int scan_ies_len;
747

748
	enum mac80211_scan_state next_scan_state;
749
	struct delayed_work scan_work;
750
	struct ieee80211_sub_if_data *scan_sdata;
Sujith's avatar
Sujith committed
751
	enum nl80211_channel_type oper_channel_type;
752
	struct ieee80211_channel *oper_channel, *csa_channel;
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767

	/* SNMP counters */
	/* dot11CountersTable */
	u32 dot11TransmittedFragmentCount;
	u32 dot11MulticastTransmittedFrameCount;
	u32 dot11FailedCount;
	u32 dot11RetryCount;
	u32 dot11MultipleRetryCount;
	u32 dot11FrameDuplicateCount;
	u32 dot11ReceivedFragmentCount;
	u32 dot11MulticastReceivedFrameCount;
	u32 dot11TransmittedFrameCount;

#ifdef CONFIG_MAC80211_LEDS
	int tx_led_counter, rx_led_counter;
768
769
770
	struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
	char tx_led_name[32], rx_led_name[32],
	     assoc_led_name[32], radio_led_name[32];
771
772
#endif

773
774
775
776
#ifdef CONFIG_MAC80211_DEBUGFS
	struct work_struct sta_debugfs_add;
#endif

777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	/* TX/RX handler statistics */
	unsigned int tx_handlers_drop;
	unsigned int tx_handlers_queued;
	unsigned int tx_handlers_drop_unencrypted;
	unsigned int tx_handlers_drop_fragment;
	unsigned int tx_handlers_drop_wep;
	unsigned int tx_handlers_drop_not_assoc;
	unsigned int tx_handlers_drop_unauth_port;
	unsigned int rx_handlers_drop;
	unsigned int rx_handlers_queued;
	unsigned int rx_handlers_drop_nullfunc;
	unsigned int rx_handlers_drop_defrag;
	unsigned int rx_handlers_drop_short;
	unsigned int rx_handlers_drop_passive_scan;
	unsigned int tx_expand_skb_head;
	unsigned int tx_expand_skb_head_cloned;
	unsigned int rx_expand_skb_head;
	unsigned int rx_expand_skb_head2;
	unsigned int rx_handlers_fragments;
	unsigned int tx_status_drop;
#define I802_DEBUG_INC(c) (c)++
#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
#define I802_DEBUG_INC(c) do { } while (0)
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */


	int total_ps_buffered; /* total number of all buffered unicast and
				* multicast packets for power saving stations
				*/
	int wifi_wme_noack_test;
	unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
809

810
	bool pspolling;
811
812
813
814
815
	/*
	 * PS can only be enabled when we have exactly one managed
	 * interface (and monitors) in PS, this then points there.
	 */
	struct ieee80211_sub_if_data *ps_sdata;
816
817
818
	struct work_struct dynamic_ps_enable_work;
	struct work_struct dynamic_ps_disable_work;
	struct timer_list dynamic_ps_timer;
819
	struct notifier_block network_latency_notifier;
820

821
	int user_power_level; /* in dBm */
822
	int power_constr_level; /* in dBm */
823

824
825
	struct work_struct restart_work;

826
827
#ifdef CONFIG_MAC80211_DEBUGFS
	struct local_debugfsdentries {
828
829
		struct dentry *rcdir;
		struct dentry *rcname;
830
831
832
		struct dentry *frequency;
		struct dentry *total_ps_buffered;
		struct dentry *wep_iv;
833
		struct dentry *tsf;
834
		struct dentry *queues;
835
		struct dentry *reset;
836
		struct dentry *noack;
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
		struct dentry *statistics;
		struct local_debugfsdentries_statsdentries {
			struct dentry *transmitted_fragment_count;
			struct dentry *multicast_transmitted_frame_count;
			struct dentry *failed_count;
			struct dentry *retry_count;
			struct dentry *multiple_retry_count;
			struct dentry *frame_duplicate_count;
			struct dentry *received_fragment_count;
			struct dentry *multicast_received_frame_count;
			struct dentry *transmitted_frame_count;
			struct dentry *wep_undecryptable_count;
			struct dentry *num_scans;
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
			struct dentry *tx_handlers_drop;
			struct dentry *tx_handlers_queued;
			struct dentry *tx_handlers_drop_unencrypted;
			struct dentry *tx_handlers_drop_fragment;
			struct dentry *tx_handlers_drop_wep;
			struct dentry *tx_handlers_drop_not_assoc;
			struct dentry *tx_handlers_drop_unauth_port;
			struct dentry *rx_handlers_drop;
			struct dentry *rx_handlers_queued;
			struct dentry *rx_handlers_drop_nullfunc;
			struct dentry *rx_handlers_drop_defrag;
			struct dentry *rx_handlers_drop_short;
			struct dentry *rx_handlers_drop_passive_scan;
			struct dentry *tx_expand_skb_head;
			struct dentry *tx_expand_skb_head_cloned;
			struct dentry *rx_expand_skb_head;
			struct dentry *rx_expand_skb_head2;
			struct dentry *rx_handlers_fragments;
			struct dentry *tx_status_drop;
#endif
			struct dentry *dot11ACKFailureCount;
			struct dentry *dot11RTSFailureCount;
			struct dentry *dot11FCSErrorCount;
			struct dentry *dot11RTSSuccessCount;
		} stats;
		struct dentry *stations;
		struct dentry *keys;
	} debugfs;
#endif
880
881
};

882
883
884
885
886
887
static inline struct ieee80211_sub_if_data *
IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
{
	return netdev_priv(dev);
}

888
889
890
891
892
893
/* this struct represents 802.11n's RA/TID combination */
struct ieee80211_ra_tid {
	u8 ra[ETH_ALEN];
	u16 tid;
};

894
895
/* Parsed Information Elements */
struct ieee802_11_elems {
896
897
898
	u8 *ie_start;
	size_t total_len;

899
900
901
902
903
904
	/* pointers to IEs */
	u8 *ssid;
	u8 *supp_rates;
	u8 *fh_params;
	u8 *ds_params;
	u8 *cf_params;
905
	struct ieee80211_tim_ie *tim;
906
907
908
909
910
911
912
913
	u8 *ibss_params;
	u8 *challenge;
	u8 *wpa;
	u8 *rsn;
	u8 *erp_info;
	u8 *ext_supp_rates;
	u8 *wmm_info;
	u8 *wmm_param;
914
	struct ieee80211_ht_cap *ht_cap_elem;
915
	struct ieee80211_ht_info *ht_info_elem;
916
917
918
919
920
921
	u8 *mesh_config;
	u8 *mesh_id;
	u8 *peer_link;
	u8 *preq;
	u8 *prep;
	u8 *perr;
922
923
924
925
	u8 *ch_switch_elem;
	u8 *country_elem;
	u8 *pwr_constr_elem;
	u8 *quiet_elem; 	/* first quite element */
926
	u8 *timeout_int;
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948

	/* length of them, respectively */
	u8 ssid_len;
	u8 supp_rates_len;
	u8 fh_params_len;
	u8 ds_params_len;
	u8 cf_params_len;
	u8 tim_len;
	u8 ibss_params_len;
	u8 challenge_len;
	u8 wpa_len;
	u8 rsn_len;
	u8 erp_info_len;
	u8 ext_supp_rates_len;
	u8 wmm_info_len;
	u8 wmm_param_len;
	u8 mesh_config_len;
	u8 mesh_id_len;
	u8 peer_link_len;
	u8 preq_len;
	u8 prep_len;
	u8 perr_len;
949
950
951
952
953
	u8 ch_switch_elem_len;
	u8 country_elem_len;
	u8 pwr_constr_elem_len;
	u8 quiet_elem_len;
	u8 num_of_quiet_elem;	/* can be more the one */
954
	u8 timeout_int_len;
955
956
};

957
958
959
960
961
962
963
964
965
966
967
968
969
static inline struct ieee80211_local *hw_to_local(
	struct ieee80211_hw *hw)
{
	return container_of(hw, struct ieee80211_local, hw);
}

static inline struct ieee80211_hw *local_to_hw(
	struct ieee80211_local *local)
{
	return &local->hw;
}


970
971
972
973
974
975
976
static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
{
	return compare_ether_addr(raddr, addr) == 0 ||
	       is_broadcast_ether_addr(raddr);
}


977
int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
978
void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
979
980
void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
				      u32 changed);
981
void ieee80211_configure_filter(struct ieee80211_local *local);
982
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
983

984
/* STA code */
985
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
986
987
988
989
990
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
		       struct cfg80211_auth_request *req);
int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
			struct cfg80211_assoc_request *req);
int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
Johannes Berg's avatar
Johannes Berg committed
991
992
			 struct cfg80211_deauth_request *req,
			 void *cookie);
993
int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
Johannes Berg's avatar
Johannes Berg committed
994
995
			   struct cfg80211_disassoc_request *req,
			   void *cookie);
996
ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
997
					  struct sk_buff *skb);
998
999
void ieee80211_send_pspoll(struct ieee80211_local *local,
			   struct ieee80211_sub_if_data *sdata);
1000
1001
1002
void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
int ieee80211_max_network_latency(struct notifier_block *nb,
				  unsigned long data, void *dummy);
1003
1004
1005
void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
				      struct ieee80211_channel_sw_ie *sw_elem,
				      struct ieee80211_bss *bss);
1006
1007
void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1008

1009
1010
1011
1012
/* IBSS code */
void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
ieee80211_rx_result
1013
ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1014
1015
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
					u8 *bssid, u8 *addr, u32 supp_rates);
1016
1017
1018
int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
			struct cfg80211_ibss_params *params);
int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1019
1020
void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1021

1022
/* scan/BSS handling */
1023
void ieee80211_scan_work(struct work_struct *work);
1024
1025
int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
				    const u8 *ssid, u8 ssid_len);
1026
int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1027
			   struct cfg80211_scan_request *req);
1028
void ieee80211_scan_cancel(struct ieee80211_local *local);
1029
ieee80211_rx_result
1030
ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1031

1032
void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1033
struct ieee80211_bss *
1034
1035
1036
1037
1038
ieee80211_bss_info_update(struct ieee80211_local *local,
			  struct ieee80211_rx_status *rx_status,
			  struct ieee80211_mgmt *mgmt,
			  size_t len,
			  struct ieee802_11_elems *elems,
1039
1040
			  struct ieee80211_channel *channel,
			  bool beacon);
1041
struct ieee80211_bss *
1042
1043
ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
		     u8 *ssid, u8 ssid_len);
1044
void ieee80211_rx_bss_put(struct ieee80211_local *local,
1045
			  struct ieee80211_bss *bss);
1046

1047
1048
/* interface handling */
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1049
		     struct net_device **new_dev, enum nl80211_iftype type,
1050
		     struct vif_params *params);
1051
int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1052
			     enum nl80211_iftype type);
1053
void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1054
void ieee80211_remove_interfaces(struct ieee80211_local *local);
1055
1056
u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
void ieee80211_recalc_idle(struct ieee80211_local *local);
1057

1058
1059
1060
/* tx handling */
void ieee80211_clear_tx_pending(struct ieee80211_local *local);
void ieee80211_tx_pending(unsigned long data);
1061
1062
1063
1064
netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
					 struct net_device *dev);
netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
				       struct net_device *dev);
1065

1066
/* HT */
Johannes Berg's avatar
Johannes Berg committed
1067
1068
void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
				       struct ieee80211_ht_cap *ht_cap_ie,
1069
				       struct ieee80211_sta_ht_cap *ht_cap);
1070
void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
Johannes Berg's avatar
Johannes Berg committed
1071
1072
1073
void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
			  const u8 *da, u16 tid,
			  u16 initiator, u16 reason_code);
1074
1075
1076

void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
				u16 tid, u16 initiator, u16 reason);
1077
1078
void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
				    u16 initiator, u16 reason);
1079
void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
			     struct sta_info *sta,
			     struct ieee80211_mgmt *mgmt, size_t len);
void ieee80211_process_addba_resp(struct ieee80211_local *local,
				  struct sta_info *sta,
				  struct ieee80211_mgmt *mgmt,
				  size_t len);
void ieee80211_process_addba_request(struct ieee80211_local *local,
				     struct sta_info *sta,
				     struct ieee80211_mgmt *mgmt,
				     size_t len);

1092
1093
int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
				   enum ieee80211_back_parties initiator);
1094
1095
int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
				    enum ieee80211_back_parties initiator);
1096

1097
1098
1099
1100
1101
/* Spectrum management */
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
				       struct ieee80211_mgmt *mgmt,
				       size_t len);

1102
1103
/* Suspend/resume and hw reconfiguration */
int ieee80211_reconfig(struct ieee80211_local *local);
1104
void ieee80211_stop_device(struct ieee80211_local *local);
1105

1106
#ifdef CONFIG_PM
1107
int __ieee80211_suspend(struct ieee80211_hw *hw);
1108
1109
1110
1111
1112

static inline int __ieee80211_resume(struct ieee80211_hw *hw)
{
	return ieee80211_reconfig(hw_to_local(hw));
}
1113
1114
1115
1116
1117
#else
static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
{
	return 0;
}
1118

1119
1120
1121
1122
1123
static inline int __ieee80211_resume(struct ieee80211_hw *hw)
{
	return 0;
}
#endif
1124

Johannes Berg's avatar
Johannes Berg committed
1125
1126
/* utility functions/constants */
extern void *mac80211_wiphy_privid; /* for wiphy privid */
1127
u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1128
			enum nl80211_iftype type);
Johannes Berg's avatar
Johannes Berg committed
1129
1130
int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
			     int rate, int erp, int short_preamble);
1131
void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1132
1133
				     struct ieee80211_hdr *hdr, const u8 *tsc,
				     gfp_t gfp);
1134
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1135
1136
void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
		      int encrypt);
1137
1138
void ieee802_11_parse_elems(u8 *start, size_t len,
			    struct ieee802_11_elems *elems);
1139
1140
1141
u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
			       struct ieee802_11_elems *elems,
			       u64 filter, u32 crc);
1142
u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1143
			      enum ieee80211_band band);
1144

1145
1146
1147
void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
void ieee80211_dynamic_ps_timer(unsigned long data);
1148
1149
1150
void ieee80211_send_nullfunc(struct ieee80211_local *local,
			     struct ieee80211_sub_if_data *sdata,
			     int powersave);
1151
1152
void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
			     struct ieee80211_hdr *hdr);
1153
void ieee80211_beacon_loss_work(struct work_struct *work);
1154

1155
1156
1157
1158
void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
				     enum queue_stop_reason reason);
void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
				     enum queue_stop_reason reason);
1159
1160
1161
1162
void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
				    enum queue_stop_reason reason);
void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
				    enum queue_stop_reason reason);
1163
1164
1165
1166
void ieee80211_add_pending_skb(struct ieee80211_local *local,
			       struct sk_buff *skb);
int ieee80211_add_pending_skbs(struct ieee80211_local *local,
			       struct sk_buff_head *skbs);
1167

1168
1169
void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
			 u16 transaction, u16 auth_alg,
Johannes Berg's avatar
Johannes Berg committed
1170
1171
			 u8 *extra, size_t extra_len, const u8 *bssid,
			 const u8 *key, u8 key_len, u8 key_idx);
1172
1173
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
			     const u8 *ie, size_t ie_len);
1174
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1175
1176
			      const u8 *ssid, size_t ssid_len,
			      const u8 *ie, size_t ie_len);
1177
1178
1179
1180
1181
1182
1183
1184

void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
				  const size_t supp_rates_len,
				  const u8 *supp_rates);
u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
			    struct ieee802_11_elems *elems,
			    enum ieee80211_band band);

1185
#ifdef CONFIG_MAC80211_NOINLINE
1186
1187
1188
1189
1190
#define debug_noinline noinline
#else
#define debug_noinline
#endif

1191
#endif /* IEEE80211_I_H */