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[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [net/] [ieee80211.h] - Blame information for rev 62

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1 62 marcus.erl
/*
2
 * Merged with mainline ieee80211.h in Aug 2004.  Original ieee802_11
3
 * remains copyright by the original authors
4
 *
5
 * Portions of the merged code are based on Host AP (software wireless
6
 * LAN access point) driver for Intersil Prism2/2.5/3.
7
 *
8
 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
9
 * <j@w1.fi>
10
 * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
11
 *
12
 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13
 * <jketreno@linux.intel.com>
14
 * Copyright (c) 2004-2005, Intel Corporation
15
 *
16
 * This program is free software; you can redistribute it and/or modify
17
 * it under the terms of the GNU General Public License version 2 as
18
 * published by the Free Software Foundation. See README and COPYING for
19
 * more details.
20
 *
21
 * API Version History
22
 * 1.0.x -- Initial version
23
 * 1.1.x -- Added radiotap, QoS, TIM, ieee80211_geo APIs,
24
 *          various structure changes, and crypto API init method
25
 */
26
#ifndef IEEE80211_H
27
#define IEEE80211_H
28
#include <linux/if_ether.h>     /* ETH_ALEN */
29
#include <linux/kernel.h>       /* ARRAY_SIZE */
30
#include <linux/wireless.h>
31
 
32
#define IEEE80211_VERSION "git-1.1.13"
33
 
34
#define IEEE80211_DATA_LEN              2304
35
/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
36
   6.2.1.1.2.
37
 
38
   The figure in section 7.1.2 suggests a body size of up to 2312
39
   bytes is allowed, which is a bit confusing, I suspect this
40
   represents the 2304 bytes of real data, plus a possible 8 bytes of
41
   WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
42
 
43
#define IEEE80211_1ADDR_LEN 10
44
#define IEEE80211_2ADDR_LEN 16
45
#define IEEE80211_3ADDR_LEN 24
46
#define IEEE80211_4ADDR_LEN 30
47
#define IEEE80211_FCS_LEN    4
48
#define IEEE80211_HLEN                  (IEEE80211_4ADDR_LEN)
49
#define IEEE80211_FRAME_LEN             (IEEE80211_DATA_LEN + IEEE80211_HLEN)
50
 
51
#define MIN_FRAG_THRESHOLD     256U
52
#define MAX_FRAG_THRESHOLD     2346U
53
 
54
/* Frame control field constants */
55
#define IEEE80211_FCTL_VERS             0x0003
56
#define IEEE80211_FCTL_FTYPE            0x000c
57
#define IEEE80211_FCTL_STYPE            0x00f0
58
#define IEEE80211_FCTL_TODS             0x0100
59
#define IEEE80211_FCTL_FROMDS           0x0200
60
#define IEEE80211_FCTL_MOREFRAGS        0x0400
61
#define IEEE80211_FCTL_RETRY            0x0800
62
#define IEEE80211_FCTL_PM               0x1000
63
#define IEEE80211_FCTL_MOREDATA         0x2000
64
#define IEEE80211_FCTL_PROTECTED        0x4000
65
#define IEEE80211_FCTL_ORDER            0x8000
66
 
67
#define IEEE80211_FTYPE_MGMT            0x0000
68
#define IEEE80211_FTYPE_CTL             0x0004
69
#define IEEE80211_FTYPE_DATA            0x0008
70
 
71
/* management */
72
#define IEEE80211_STYPE_ASSOC_REQ       0x0000
73
#define IEEE80211_STYPE_ASSOC_RESP      0x0010
74
#define IEEE80211_STYPE_REASSOC_REQ     0x0020
75
#define IEEE80211_STYPE_REASSOC_RESP    0x0030
76
#define IEEE80211_STYPE_PROBE_REQ       0x0040
77
#define IEEE80211_STYPE_PROBE_RESP      0x0050
78
#define IEEE80211_STYPE_BEACON          0x0080
79
#define IEEE80211_STYPE_ATIM            0x0090
80
#define IEEE80211_STYPE_DISASSOC        0x00A0
81
#define IEEE80211_STYPE_AUTH            0x00B0
82
#define IEEE80211_STYPE_DEAUTH          0x00C0
83
#define IEEE80211_STYPE_ACTION          0x00D0
84
 
85
/* control */
86
#define IEEE80211_STYPE_PSPOLL          0x00A0
87
#define IEEE80211_STYPE_RTS             0x00B0
88
#define IEEE80211_STYPE_CTS             0x00C0
89
#define IEEE80211_STYPE_ACK             0x00D0
90
#define IEEE80211_STYPE_CFEND           0x00E0
91
#define IEEE80211_STYPE_CFENDACK        0x00F0
92
 
93
/* data */
94
#define IEEE80211_STYPE_DATA            0x0000
95
#define IEEE80211_STYPE_DATA_CFACK      0x0010
96
#define IEEE80211_STYPE_DATA_CFPOLL     0x0020
97
#define IEEE80211_STYPE_DATA_CFACKPOLL  0x0030
98
#define IEEE80211_STYPE_NULLFUNC        0x0040
99
#define IEEE80211_STYPE_CFACK           0x0050
100
#define IEEE80211_STYPE_CFPOLL          0x0060
101
#define IEEE80211_STYPE_CFACKPOLL       0x0070
102
#define IEEE80211_STYPE_QOS_DATA        0x0080
103
 
104
#define IEEE80211_SCTL_FRAG             0x000F
105
#define IEEE80211_SCTL_SEQ              0xFFF0
106
 
107
/* QOS control */
108
#define IEEE80211_QCTL_TID              0x000F
109
 
110
/* debug macros */
111
 
112
#ifdef CONFIG_IEEE80211_DEBUG
113
extern u32 ieee80211_debug_level;
114
#define IEEE80211_DEBUG(level, fmt, args...) \
115
do { if (ieee80211_debug_level & (level)) \
116
  printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
117
         in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
118
static inline bool ieee80211_ratelimit_debug(u32 level)
119
{
120
        return (ieee80211_debug_level & level) && net_ratelimit();
121
}
122
#else
123
#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
124
static inline bool ieee80211_ratelimit_debug(u32 level)
125
{
126
        return false;
127
}
128
#endif                          /* CONFIG_IEEE80211_DEBUG */
129
 
130
/* escape_essid() is intended to be used in debug (and possibly error)
131
 * messages. It should never be used for passing essid to user space. */
132
const char *escape_essid(const char *essid, u8 essid_len);
133
 
134
/*
135
 * To use the debug system:
136
 *
137
 * If you are defining a new debug classification, simply add it to the #define
138
 * list here in the form of:
139
 *
140
 * #define IEEE80211_DL_xxxx VALUE
141
 *
142
 * shifting value to the left one bit from the previous entry.  xxxx should be
143
 * the name of the classification (for example, WEP)
144
 *
145
 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
146
 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
147
 * to send output to that classification.
148
 *
149
 * To add your debug level to the list of levels seen when you perform
150
 *
151
 * % cat /proc/net/ieee80211/debug_level
152
 *
153
 * you simply need to add your entry to the ieee80211_debug_level array.
154
 *
155
 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
156
 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
157
 *
158
 */
159
 
160
#define IEEE80211_DL_INFO          (1<<0)
161
#define IEEE80211_DL_WX            (1<<1)
162
#define IEEE80211_DL_SCAN          (1<<2)
163
#define IEEE80211_DL_STATE         (1<<3)
164
#define IEEE80211_DL_MGMT          (1<<4)
165
#define IEEE80211_DL_FRAG          (1<<5)
166
#define IEEE80211_DL_DROP          (1<<7)
167
 
168
#define IEEE80211_DL_TX            (1<<8)
169
#define IEEE80211_DL_RX            (1<<9)
170
#define IEEE80211_DL_QOS           (1<<31)
171
 
172
#define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
173
#define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
174
#define IEEE80211_DEBUG_INFO(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
175
 
176
#define IEEE80211_DEBUG_WX(f, a...)     IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
177
#define IEEE80211_DEBUG_SCAN(f, a...)   IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
178
#define IEEE80211_DEBUG_STATE(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
179
#define IEEE80211_DEBUG_MGMT(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
180
#define IEEE80211_DEBUG_FRAG(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
181
#define IEEE80211_DEBUG_DROP(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
182
#define IEEE80211_DEBUG_TX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
183
#define IEEE80211_DEBUG_RX(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
184
#define IEEE80211_DEBUG_QOS(f, a...)  IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
185
#include <linux/netdevice.h>
186
#include <linux/wireless.h>
187
#include <linux/if_arp.h>       /* ARPHRD_ETHER */
188
 
189
#ifndef WIRELESS_SPY
190
#define WIRELESS_SPY            /* enable iwspy support */
191
#endif
192
#include <net/iw_handler.h>     /* new driver API */
193
 
194
#ifndef ETH_P_PAE
195
#define ETH_P_PAE 0x888E        /* Port Access Entity (IEEE 802.1X) */
196
#endif                          /* ETH_P_PAE */
197
 
198
#define ETH_P_PREAUTH 0x88C7    /* IEEE 802.11i pre-authentication */
199
 
200
#ifndef ETH_P_80211_RAW
201
#define ETH_P_80211_RAW (ETH_P_ECONET + 1)
202
#endif
203
 
204
/* IEEE 802.11 defines */
205
 
206
#define P80211_OUI_LEN 3
207
 
208
struct ieee80211_snap_hdr {
209
 
210
        u8 dsap;                /* always 0xAA */
211
        u8 ssap;                /* always 0xAA */
212
        u8 ctrl;                /* always 0x03 */
213
        u8 oui[P80211_OUI_LEN]; /* organizational universal id */
214
 
215
} __attribute__ ((packed));
216
 
217
#define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
218
 
219
#define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
220
#define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
221
#define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
222
 
223
#define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
224
#define WLAN_GET_SEQ_SEQ(seq)  (((seq) & IEEE80211_SCTL_SEQ) >> 4)
225
 
226
/* Authentication algorithms */
227
#define WLAN_AUTH_OPEN 0
228
#define WLAN_AUTH_SHARED_KEY 1
229
#define WLAN_AUTH_LEAP 2
230
 
231
#define WLAN_AUTH_CHALLENGE_LEN 128
232
 
233
#define WLAN_CAPABILITY_ESS (1<<0)
234
#define WLAN_CAPABILITY_IBSS (1<<1)
235
#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
236
#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
237
#define WLAN_CAPABILITY_PRIVACY (1<<4)
238
#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
239
#define WLAN_CAPABILITY_PBCC (1<<6)
240
#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
241
#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
242
#define WLAN_CAPABILITY_QOS (1<<9)
243
#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
244
#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
245
 
246
/* 802.11g ERP information element */
247
#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
248
#define WLAN_ERP_USE_PROTECTION (1<<1)
249
#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
250
 
251
/* Status codes */
252
enum ieee80211_statuscode {
253
        WLAN_STATUS_SUCCESS = 0,
254
        WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
255
        WLAN_STATUS_CAPS_UNSUPPORTED = 10,
256
        WLAN_STATUS_REASSOC_NO_ASSOC = 11,
257
        WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
258
        WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
259
        WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
260
        WLAN_STATUS_CHALLENGE_FAIL = 15,
261
        WLAN_STATUS_AUTH_TIMEOUT = 16,
262
        WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
263
        WLAN_STATUS_ASSOC_DENIED_RATES = 18,
264
        /* 802.11b */
265
        WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
266
        WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
267
        WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
268
        /* 802.11h */
269
        WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
270
        WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
271
        WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
272
        /* 802.11g */
273
        WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
274
        WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
275
        /* 802.11i */
276
        WLAN_STATUS_INVALID_IE = 40,
277
        WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
278
        WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
279
        WLAN_STATUS_INVALID_AKMP = 43,
280
        WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
281
        WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
282
        WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
283
};
284
 
285
/* Reason codes */
286
enum ieee80211_reasoncode {
287
        WLAN_REASON_UNSPECIFIED = 1,
288
        WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
289
        WLAN_REASON_DEAUTH_LEAVING = 3,
290
        WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
291
        WLAN_REASON_DISASSOC_AP_BUSY = 5,
292
        WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
293
        WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
294
        WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
295
        WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
296
        /* 802.11h */
297
        WLAN_REASON_DISASSOC_BAD_POWER = 10,
298
        WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
299
        /* 802.11i */
300
        WLAN_REASON_INVALID_IE = 13,
301
        WLAN_REASON_MIC_FAILURE = 14,
302
        WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
303
        WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
304
        WLAN_REASON_IE_DIFFERENT = 17,
305
        WLAN_REASON_INVALID_GROUP_CIPHER = 18,
306
        WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
307
        WLAN_REASON_INVALID_AKMP = 20,
308
        WLAN_REASON_UNSUPP_RSN_VERSION = 21,
309
        WLAN_REASON_INVALID_RSN_IE_CAP = 22,
310
        WLAN_REASON_IEEE8021X_FAILED = 23,
311
        WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
312
};
313
 
314
/* Action categories - 802.11h */
315
enum ieee80211_actioncategories {
316
        WLAN_ACTION_SPECTRUM_MGMT = 0,
317
        /* Reserved 1-127  */
318
        /* Error    128-255 */
319
};
320
 
321
/* Action details - 802.11h */
322
enum ieee80211_actiondetails {
323
        WLAN_ACTION_CATEGORY_MEASURE_REQUEST = 0,
324
        WLAN_ACTION_CATEGORY_MEASURE_REPORT = 1,
325
        WLAN_ACTION_CATEGORY_TPC_REQUEST = 2,
326
        WLAN_ACTION_CATEGORY_TPC_REPORT = 3,
327
        WLAN_ACTION_CATEGORY_CHANNEL_SWITCH = 4,
328
        /* 5 - 255 Reserved */
329
};
330
 
331
#define IEEE80211_STATMASK_SIGNAL (1<<0)
332
#define IEEE80211_STATMASK_RSSI (1<<1)
333
#define IEEE80211_STATMASK_NOISE (1<<2)
334
#define IEEE80211_STATMASK_RATE (1<<3)
335
#define IEEE80211_STATMASK_WEMASK 0x7
336
 
337
#define IEEE80211_CCK_MODULATION    (1<<0)
338
#define IEEE80211_OFDM_MODULATION   (1<<1)
339
 
340
#define IEEE80211_24GHZ_BAND     (1<<0)
341
#define IEEE80211_52GHZ_BAND     (1<<1)
342
 
343
#define IEEE80211_CCK_RATE_1MB                  0x02
344
#define IEEE80211_CCK_RATE_2MB                  0x04
345
#define IEEE80211_CCK_RATE_5MB                  0x0B
346
#define IEEE80211_CCK_RATE_11MB                 0x16
347
#define IEEE80211_OFDM_RATE_6MB                 0x0C
348
#define IEEE80211_OFDM_RATE_9MB                 0x12
349
#define IEEE80211_OFDM_RATE_12MB                0x18
350
#define IEEE80211_OFDM_RATE_18MB                0x24
351
#define IEEE80211_OFDM_RATE_24MB                0x30
352
#define IEEE80211_OFDM_RATE_36MB                0x48
353
#define IEEE80211_OFDM_RATE_48MB                0x60
354
#define IEEE80211_OFDM_RATE_54MB                0x6C
355
#define IEEE80211_BASIC_RATE_MASK               0x80
356
 
357
#define IEEE80211_CCK_RATE_1MB_MASK             (1<<0)
358
#define IEEE80211_CCK_RATE_2MB_MASK             (1<<1)
359
#define IEEE80211_CCK_RATE_5MB_MASK             (1<<2)
360
#define IEEE80211_CCK_RATE_11MB_MASK            (1<<3)
361
#define IEEE80211_OFDM_RATE_6MB_MASK            (1<<4)
362
#define IEEE80211_OFDM_RATE_9MB_MASK            (1<<5)
363
#define IEEE80211_OFDM_RATE_12MB_MASK           (1<<6)
364
#define IEEE80211_OFDM_RATE_18MB_MASK           (1<<7)
365
#define IEEE80211_OFDM_RATE_24MB_MASK           (1<<8)
366
#define IEEE80211_OFDM_RATE_36MB_MASK           (1<<9)
367
#define IEEE80211_OFDM_RATE_48MB_MASK           (1<<10)
368
#define IEEE80211_OFDM_RATE_54MB_MASK           (1<<11)
369
 
370
#define IEEE80211_CCK_RATES_MASK                0x0000000F
371
#define IEEE80211_CCK_BASIC_RATES_MASK  (IEEE80211_CCK_RATE_1MB_MASK | \
372
        IEEE80211_CCK_RATE_2MB_MASK)
373
#define IEEE80211_CCK_DEFAULT_RATES_MASK        (IEEE80211_CCK_BASIC_RATES_MASK | \
374
        IEEE80211_CCK_RATE_5MB_MASK | \
375
        IEEE80211_CCK_RATE_11MB_MASK)
376
 
377
#define IEEE80211_OFDM_RATES_MASK               0x00000FF0
378
#define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
379
        IEEE80211_OFDM_RATE_12MB_MASK | \
380
        IEEE80211_OFDM_RATE_24MB_MASK)
381
#define IEEE80211_OFDM_DEFAULT_RATES_MASK       (IEEE80211_OFDM_BASIC_RATES_MASK | \
382
        IEEE80211_OFDM_RATE_9MB_MASK  | \
383
        IEEE80211_OFDM_RATE_18MB_MASK | \
384
        IEEE80211_OFDM_RATE_36MB_MASK | \
385
        IEEE80211_OFDM_RATE_48MB_MASK | \
386
        IEEE80211_OFDM_RATE_54MB_MASK)
387
#define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
388
                                IEEE80211_CCK_DEFAULT_RATES_MASK)
389
 
390
#define IEEE80211_NUM_OFDM_RATES            8
391
#define IEEE80211_NUM_CCK_RATES             4
392
#define IEEE80211_OFDM_SHIFT_MASK_A         4
393
 
394
/* NOTE: This data is for statistical purposes; not all hardware provides this
395
 *       information for frames received.
396
 *       For ieee80211_rx_mgt, you need to set at least the 'len' parameter.
397
 */
398
struct ieee80211_rx_stats {
399
        u32 mac_time;
400
        s8 rssi;
401
        u8 signal;
402
        u8 noise;
403
        u16 rate;               /* in 100 kbps */
404
        u8 received_channel;
405
        u8 control;
406
        u8 mask;
407
        u8 freq;
408
        u16 len;
409
        u64 tsf;
410
        u32 beacon_time;
411
};
412
 
413
/* IEEE 802.11 requires that STA supports concurrent reception of at least
414
 * three fragmented frames. This define can be increased to support more
415
 * concurrent frames, but it should be noted that each entry can consume about
416
 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
417
#define IEEE80211_FRAG_CACHE_LEN 4
418
 
419
struct ieee80211_frag_entry {
420
        unsigned long first_frag_time;
421
        unsigned int seq;
422
        unsigned int last_frag;
423
        struct sk_buff *skb;
424
        u8 src_addr[ETH_ALEN];
425
        u8 dst_addr[ETH_ALEN];
426
};
427
 
428
struct ieee80211_stats {
429
        unsigned int tx_unicast_frames;
430
        unsigned int tx_multicast_frames;
431
        unsigned int tx_fragments;
432
        unsigned int tx_unicast_octets;
433
        unsigned int tx_multicast_octets;
434
        unsigned int tx_deferred_transmissions;
435
        unsigned int tx_single_retry_frames;
436
        unsigned int tx_multiple_retry_frames;
437
        unsigned int tx_retry_limit_exceeded;
438
        unsigned int tx_discards;
439
        unsigned int rx_unicast_frames;
440
        unsigned int rx_multicast_frames;
441
        unsigned int rx_fragments;
442
        unsigned int rx_unicast_octets;
443
        unsigned int rx_multicast_octets;
444
        unsigned int rx_fcs_errors;
445
        unsigned int rx_discards_no_buffer;
446
        unsigned int tx_discards_wrong_sa;
447
        unsigned int rx_discards_undecryptable;
448
        unsigned int rx_message_in_msg_fragments;
449
        unsigned int rx_message_in_bad_msg_fragments;
450
};
451
 
452
struct ieee80211_device;
453
 
454
#include "ieee80211_crypt.h"
455
 
456
#define SEC_KEY_1               (1<<0)
457
#define SEC_KEY_2               (1<<1)
458
#define SEC_KEY_3               (1<<2)
459
#define SEC_KEY_4               (1<<3)
460
#define SEC_ACTIVE_KEY          (1<<4)
461
#define SEC_AUTH_MODE           (1<<5)
462
#define SEC_UNICAST_GROUP       (1<<6)
463
#define SEC_LEVEL               (1<<7)
464
#define SEC_ENABLED             (1<<8)
465
#define SEC_ENCRYPT             (1<<9)
466
 
467
#define SEC_LEVEL_0             0        /* None */
468
#define SEC_LEVEL_1             1       /* WEP 40 and 104 bit */
469
#define SEC_LEVEL_2             2       /* Level 1 + TKIP */
470
#define SEC_LEVEL_2_CKIP        3       /* Level 1 + CKIP */
471
#define SEC_LEVEL_3             4       /* Level 2 + CCMP */
472
 
473
#define SEC_ALG_NONE            0
474
#define SEC_ALG_WEP             1
475
#define SEC_ALG_TKIP            2
476
#define SEC_ALG_CCMP            3
477
 
478
#define WEP_KEYS                4
479
#define WEP_KEY_LEN             13
480
#define SCM_KEY_LEN             32
481
#define SCM_TEMPORAL_KEY_LENGTH 16
482
 
483
struct ieee80211_security {
484
        u16 active_key:2,
485
            enabled:1,
486
            auth_mode:2, auth_algo:4, unicast_uses_group:1, encrypt:1;
487
        u8 encode_alg[WEP_KEYS];
488
        u8 key_sizes[WEP_KEYS];
489
        u8 keys[WEP_KEYS][SCM_KEY_LEN];
490
        u8 level;
491
        u16 flags;
492
} __attribute__ ((packed));
493
 
494
/*
495
 
496
 802.11 data frame from AP
497
 
498
      ,-------------------------------------------------------------------.
499
Bytes |  2   |  2   |    6    |    6    |    6    |  2   | 0..2312 |   4  |
500
      |------|------|---------|---------|---------|------|---------|------|
501
Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  frame  |  fcs |
502
      |      | tion | (BSSID) |         |         | ence |  data   |      |
503
      `-------------------------------------------------------------------'
504
 
505
Total: 28-2340 bytes
506
 
507
*/
508
 
509
#define BEACON_PROBE_SSID_ID_POSITION 12
510
 
511
/* Management Frame Information Element Types */
512
enum ieee80211_mfie {
513
        MFIE_TYPE_SSID = 0,
514
        MFIE_TYPE_RATES = 1,
515
        MFIE_TYPE_FH_SET = 2,
516
        MFIE_TYPE_DS_SET = 3,
517
        MFIE_TYPE_CF_SET = 4,
518
        MFIE_TYPE_TIM = 5,
519
        MFIE_TYPE_IBSS_SET = 6,
520
        MFIE_TYPE_COUNTRY = 7,
521
        MFIE_TYPE_HOP_PARAMS = 8,
522
        MFIE_TYPE_HOP_TABLE = 9,
523
        MFIE_TYPE_REQUEST = 10,
524
        MFIE_TYPE_CHALLENGE = 16,
525
        MFIE_TYPE_POWER_CONSTRAINT = 32,
526
        MFIE_TYPE_POWER_CAPABILITY = 33,
527
        MFIE_TYPE_TPC_REQUEST = 34,
528
        MFIE_TYPE_TPC_REPORT = 35,
529
        MFIE_TYPE_SUPP_CHANNELS = 36,
530
        MFIE_TYPE_CSA = 37,
531
        MFIE_TYPE_MEASURE_REQUEST = 38,
532
        MFIE_TYPE_MEASURE_REPORT = 39,
533
        MFIE_TYPE_QUIET = 40,
534
        MFIE_TYPE_IBSS_DFS = 41,
535
        MFIE_TYPE_ERP_INFO = 42,
536
        MFIE_TYPE_RSN = 48,
537
        MFIE_TYPE_RATES_EX = 50,
538
        MFIE_TYPE_GENERIC = 221,
539
        MFIE_TYPE_QOS_PARAMETER = 222,
540
};
541
 
542
/* Minimal header; can be used for passing 802.11 frames with sufficient
543
 * information to determine what type of underlying data type is actually
544
 * stored in the data. */
545
struct ieee80211_hdr {
546
        __le16 frame_ctl;
547
        __le16 duration_id;
548
        u8 payload[0];
549
} __attribute__ ((packed));
550
 
551
struct ieee80211_hdr_1addr {
552
        __le16 frame_ctl;
553
        __le16 duration_id;
554
        u8 addr1[ETH_ALEN];
555
        u8 payload[0];
556
} __attribute__ ((packed));
557
 
558
struct ieee80211_hdr_2addr {
559
        __le16 frame_ctl;
560
        __le16 duration_id;
561
        u8 addr1[ETH_ALEN];
562
        u8 addr2[ETH_ALEN];
563
        u8 payload[0];
564
} __attribute__ ((packed));
565
 
566
struct ieee80211_hdr_3addr {
567
        __le16 frame_ctl;
568
        __le16 duration_id;
569
        u8 addr1[ETH_ALEN];
570
        u8 addr2[ETH_ALEN];
571
        u8 addr3[ETH_ALEN];
572
        __le16 seq_ctl;
573
        u8 payload[0];
574
} __attribute__ ((packed));
575
 
576
struct ieee80211_hdr_4addr {
577
        __le16 frame_ctl;
578
        __le16 duration_id;
579
        u8 addr1[ETH_ALEN];
580
        u8 addr2[ETH_ALEN];
581
        u8 addr3[ETH_ALEN];
582
        __le16 seq_ctl;
583
        u8 addr4[ETH_ALEN];
584
        u8 payload[0];
585
} __attribute__ ((packed));
586
 
587
struct ieee80211_hdr_3addrqos {
588
        __le16 frame_ctl;
589
        __le16 duration_id;
590
        u8 addr1[ETH_ALEN];
591
        u8 addr2[ETH_ALEN];
592
        u8 addr3[ETH_ALEN];
593
        __le16 seq_ctl;
594
        u8 payload[0];
595
        __le16 qos_ctl;
596
} __attribute__ ((packed));
597
 
598
struct ieee80211_hdr_4addrqos {
599
        __le16 frame_ctl;
600
        __le16 duration_id;
601
        u8 addr1[ETH_ALEN];
602
        u8 addr2[ETH_ALEN];
603
        u8 addr3[ETH_ALEN];
604
        __le16 seq_ctl;
605
        u8 addr4[ETH_ALEN];
606
        u8 payload[0];
607
        __le16 qos_ctl;
608
} __attribute__ ((packed));
609
 
610
struct ieee80211_info_element {
611
        u8 id;
612
        u8 len;
613
        u8 data[0];
614
} __attribute__ ((packed));
615
 
616
/*
617
 * These are the data types that can make up management packets
618
 *
619
        u16 auth_algorithm;
620
        u16 auth_sequence;
621
        u16 beacon_interval;
622
        u16 capability;
623
        u8 current_ap[ETH_ALEN];
624
        u16 listen_interval;
625
        struct {
626
                u16 association_id:14, reserved:2;
627
        } __attribute__ ((packed));
628
        u32 time_stamp[2];
629
        u16 reason;
630
        u16 status;
631
*/
632
 
633
struct ieee80211_auth {
634
        struct ieee80211_hdr_3addr header;
635
        __le16 algorithm;
636
        __le16 transaction;
637
        __le16 status;
638
        /* challenge */
639
        struct ieee80211_info_element info_element[0];
640
} __attribute__ ((packed));
641
 
642
struct ieee80211_channel_switch {
643
        u8 id;
644
        u8 len;
645
        u8 mode;
646
        u8 channel;
647
        u8 count;
648
} __attribute__ ((packed));
649
 
650
struct ieee80211_action {
651
        struct ieee80211_hdr_3addr header;
652
        u8 category;
653
        u8 action;
654
        union {
655
                struct ieee80211_action_exchange {
656
                        u8 token;
657
                        struct ieee80211_info_element info_element[0];
658
                } exchange;
659
                struct ieee80211_channel_switch channel_switch;
660
 
661
        } format;
662
} __attribute__ ((packed));
663
 
664
struct ieee80211_disassoc {
665
        struct ieee80211_hdr_3addr header;
666
        __le16 reason;
667
} __attribute__ ((packed));
668
 
669
/* Alias deauth for disassoc */
670
#define ieee80211_deauth ieee80211_disassoc
671
 
672
struct ieee80211_probe_request {
673
        struct ieee80211_hdr_3addr header;
674
        /* SSID, supported rates */
675
        struct ieee80211_info_element info_element[0];
676
} __attribute__ ((packed));
677
 
678
struct ieee80211_probe_response {
679
        struct ieee80211_hdr_3addr header;
680
        u32 time_stamp[2];
681
        __le16 beacon_interval;
682
        __le16 capability;
683
        /* SSID, supported rates, FH params, DS params,
684
         * CF params, IBSS params, TIM (if beacon), RSN */
685
        struct ieee80211_info_element info_element[0];
686
} __attribute__ ((packed));
687
 
688
/* Alias beacon for probe_response */
689
#define ieee80211_beacon ieee80211_probe_response
690
 
691
struct ieee80211_assoc_request {
692
        struct ieee80211_hdr_3addr header;
693
        __le16 capability;
694
        __le16 listen_interval;
695
        /* SSID, supported rates, RSN */
696
        struct ieee80211_info_element info_element[0];
697
} __attribute__ ((packed));
698
 
699
struct ieee80211_reassoc_request {
700
        struct ieee80211_hdr_3addr header;
701
        __le16 capability;
702
        __le16 listen_interval;
703
        u8 current_ap[ETH_ALEN];
704
        struct ieee80211_info_element info_element[0];
705
} __attribute__ ((packed));
706
 
707
struct ieee80211_assoc_response {
708
        struct ieee80211_hdr_3addr header;
709
        __le16 capability;
710
        __le16 status;
711
        __le16 aid;
712
        /* supported rates */
713
        struct ieee80211_info_element info_element[0];
714
} __attribute__ ((packed));
715
 
716
struct ieee80211_txb {
717
        u8 nr_frags;
718
        u8 encrypted;
719
        u8 rts_included;
720
        u8 reserved;
721
        __le16 frag_size;
722
        __le16 payload_size;
723
        struct sk_buff *fragments[0];
724
};
725
 
726
/* SWEEP TABLE ENTRIES NUMBER */
727
#define MAX_SWEEP_TAB_ENTRIES             42
728
#define MAX_SWEEP_TAB_ENTRIES_PER_PACKET  7
729
/* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
730
 * only use 8, and then use extended rates for the remaining supported
731
 * rates.  Other APs, however, stick all of their supported rates on the
732
 * main rates information element... */
733
#define MAX_RATES_LENGTH                  ((u8)12)
734
#define MAX_RATES_EX_LENGTH               ((u8)16)
735
#define MAX_NETWORK_COUNT                  128
736
 
737
#define CRC_LENGTH                 4U
738
 
739
#define MAX_WPA_IE_LEN 64
740
 
741
#define NETWORK_EMPTY_ESSID    (1<<0)
742
#define NETWORK_HAS_OFDM       (1<<1)
743
#define NETWORK_HAS_CCK        (1<<2)
744
 
745
/* QoS structure */
746
#define NETWORK_HAS_QOS_PARAMETERS      (1<<3)
747
#define NETWORK_HAS_QOS_INFORMATION     (1<<4)
748
#define NETWORK_HAS_QOS_MASK            (NETWORK_HAS_QOS_PARAMETERS | \
749
                                         NETWORK_HAS_QOS_INFORMATION)
750
 
751
/* 802.11h */
752
#define NETWORK_HAS_POWER_CONSTRAINT    (1<<5)
753
#define NETWORK_HAS_CSA                 (1<<6)
754
#define NETWORK_HAS_QUIET               (1<<7)
755
#define NETWORK_HAS_IBSS_DFS            (1<<8)
756
#define NETWORK_HAS_TPC_REPORT          (1<<9)
757
 
758
#define NETWORK_HAS_ERP_VALUE           (1<<10)
759
 
760
#define QOS_QUEUE_NUM                   4
761
#define QOS_OUI_LEN                     3
762
#define QOS_OUI_TYPE                    2
763
#define QOS_ELEMENT_ID                  221
764
#define QOS_OUI_INFO_SUB_TYPE           0
765
#define QOS_OUI_PARAM_SUB_TYPE          1
766
#define QOS_VERSION_1                   1
767
#define QOS_AIFSN_MIN_VALUE             2
768
 
769
struct ieee80211_qos_information_element {
770
        u8 elementID;
771
        u8 length;
772
        u8 qui[QOS_OUI_LEN];
773
        u8 qui_type;
774
        u8 qui_subtype;
775
        u8 version;
776
        u8 ac_info;
777
} __attribute__ ((packed));
778
 
779
struct ieee80211_qos_ac_parameter {
780
        u8 aci_aifsn;
781
        u8 ecw_min_max;
782
        __le16 tx_op_limit;
783
} __attribute__ ((packed));
784
 
785
struct ieee80211_qos_parameter_info {
786
        struct ieee80211_qos_information_element info_element;
787
        u8 reserved;
788
        struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
789
} __attribute__ ((packed));
790
 
791
struct ieee80211_qos_parameters {
792
        __le16 cw_min[QOS_QUEUE_NUM];
793
        __le16 cw_max[QOS_QUEUE_NUM];
794
        u8 aifs[QOS_QUEUE_NUM];
795
        u8 flag[QOS_QUEUE_NUM];
796
        __le16 tx_op_limit[QOS_QUEUE_NUM];
797
} __attribute__ ((packed));
798
 
799
struct ieee80211_qos_data {
800
        struct ieee80211_qos_parameters parameters;
801
        int active;
802
        int supported;
803
        u8 param_count;
804
        u8 old_param_count;
805
};
806
 
807
struct ieee80211_tim_parameters {
808
        u8 tim_count;
809
        u8 tim_period;
810
} __attribute__ ((packed));
811
 
812
/*******************************************************/
813
 
814
enum {                          /* ieee80211_basic_report.map */
815
        IEEE80211_BASIC_MAP_BSS = (1 << 0),
816
        IEEE80211_BASIC_MAP_OFDM = (1 << 1),
817
        IEEE80211_BASIC_MAP_UNIDENTIFIED = (1 << 2),
818
        IEEE80211_BASIC_MAP_RADAR = (1 << 3),
819
        IEEE80211_BASIC_MAP_UNMEASURED = (1 << 4),
820
        /* Bits 5-7 are reserved */
821
 
822
};
823
struct ieee80211_basic_report {
824
        u8 channel;
825
        __le64 start_time;
826
        __le16 duration;
827
        u8 map;
828
} __attribute__ ((packed));
829
 
830
enum {                          /* ieee80211_measurement_request.mode */
831
        /* Bit 0 is reserved */
832
        IEEE80211_MEASUREMENT_ENABLE = (1 << 1),
833
        IEEE80211_MEASUREMENT_REQUEST = (1 << 2),
834
        IEEE80211_MEASUREMENT_REPORT = (1 << 3),
835
        /* Bits 4-7 are reserved */
836
};
837
 
838
enum {
839
        IEEE80211_REPORT_BASIC = 0,      /* required */
840
        IEEE80211_REPORT_CCA = 1,       /* optional */
841
        IEEE80211_REPORT_RPI = 2,       /* optional */
842
        /* 3-255 reserved */
843
};
844
 
845
struct ieee80211_measurement_params {
846
        u8 channel;
847
        __le64 start_time;
848
        __le16 duration;
849
} __attribute__ ((packed));
850
 
851
struct ieee80211_measurement_request {
852
        struct ieee80211_info_element ie;
853
        u8 token;
854
        u8 mode;
855
        u8 type;
856
        struct ieee80211_measurement_params params[0];
857
} __attribute__ ((packed));
858
 
859
struct ieee80211_measurement_report {
860
        struct ieee80211_info_element ie;
861
        u8 token;
862
        u8 mode;
863
        u8 type;
864
        union {
865
                struct ieee80211_basic_report basic[0];
866
        } u;
867
} __attribute__ ((packed));
868
 
869
struct ieee80211_tpc_report {
870
        u8 transmit_power;
871
        u8 link_margin;
872
} __attribute__ ((packed));
873
 
874
struct ieee80211_channel_map {
875
        u8 channel;
876
        u8 map;
877
} __attribute__ ((packed));
878
 
879
struct ieee80211_ibss_dfs {
880
        struct ieee80211_info_element ie;
881
        u8 owner[ETH_ALEN];
882
        u8 recovery_interval;
883
        struct ieee80211_channel_map channel_map[0];
884
};
885
 
886
struct ieee80211_csa {
887
        u8 mode;
888
        u8 channel;
889
        u8 count;
890
} __attribute__ ((packed));
891
 
892
struct ieee80211_quiet {
893
        u8 count;
894
        u8 period;
895
        u8 duration;
896
        u8 offset;
897
} __attribute__ ((packed));
898
 
899
struct ieee80211_network {
900
        /* These entries are used to identify a unique network */
901
        u8 bssid[ETH_ALEN];
902
        u8 channel;
903
        /* Ensure null-terminated for any debug msgs */
904
        u8 ssid[IW_ESSID_MAX_SIZE + 1];
905
        u8 ssid_len;
906
 
907
        struct ieee80211_qos_data qos_data;
908
 
909
        /* These are network statistics */
910
        struct ieee80211_rx_stats stats;
911
        u16 capability;
912
        u8 rates[MAX_RATES_LENGTH];
913
        u8 rates_len;
914
        u8 rates_ex[MAX_RATES_EX_LENGTH];
915
        u8 rates_ex_len;
916
        unsigned long last_scanned;
917
        u8 mode;
918
        u32 flags;
919
        u32 last_associate;
920
        u32 time_stamp[2];
921
        u16 beacon_interval;
922
        u16 listen_interval;
923
        u16 atim_window;
924
        u8 erp_value;
925
        u8 wpa_ie[MAX_WPA_IE_LEN];
926
        size_t wpa_ie_len;
927
        u8 rsn_ie[MAX_WPA_IE_LEN];
928
        size_t rsn_ie_len;
929
        struct ieee80211_tim_parameters tim;
930
 
931
        /* 802.11h info */
932
 
933
        /* Power Constraint - mandatory if spctrm mgmt required */
934
        u8 power_constraint;
935
 
936
        /* TPC Report - mandatory if spctrm mgmt required */
937
        struct ieee80211_tpc_report tpc_report;
938
 
939
        /* IBSS DFS - mandatory if spctrm mgmt required and IBSS
940
         * NOTE: This is variable length and so must be allocated dynamically */
941
        struct ieee80211_ibss_dfs *ibss_dfs;
942
 
943
        /* Channel Switch Announcement - optional if spctrm mgmt required */
944
        struct ieee80211_csa csa;
945
 
946
        /* Quiet - optional if spctrm mgmt required */
947
        struct ieee80211_quiet quiet;
948
 
949
        struct list_head list;
950
};
951
 
952
enum ieee80211_state {
953
        IEEE80211_UNINITIALIZED = 0,
954
        IEEE80211_INITIALIZED,
955
        IEEE80211_ASSOCIATING,
956
        IEEE80211_ASSOCIATED,
957
        IEEE80211_AUTHENTICATING,
958
        IEEE80211_AUTHENTICATED,
959
        IEEE80211_SHUTDOWN
960
};
961
 
962
#define DEFAULT_MAX_SCAN_AGE (15 * HZ)
963
#define DEFAULT_FTS 2346
964
 
965
#define CFG_IEEE80211_RESERVE_FCS (1<<0)
966
#define CFG_IEEE80211_COMPUTE_FCS (1<<1)
967
#define CFG_IEEE80211_RTS (1<<2)
968
 
969
#define IEEE80211_24GHZ_MIN_CHANNEL 1
970
#define IEEE80211_24GHZ_MAX_CHANNEL 14
971
#define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \
972
                                  IEEE80211_24GHZ_MIN_CHANNEL + 1)
973
 
974
#define IEEE80211_52GHZ_MIN_CHANNEL 34
975
#define IEEE80211_52GHZ_MAX_CHANNEL 165
976
#define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \
977
                                  IEEE80211_52GHZ_MIN_CHANNEL + 1)
978
 
979
enum {
980
        IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
981
        IEEE80211_CH_80211H_RULES = (1 << 1),
982
        IEEE80211_CH_B_ONLY = (1 << 2),
983
        IEEE80211_CH_NO_IBSS = (1 << 3),
984
        IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
985
        IEEE80211_CH_RADAR_DETECT = (1 << 5),
986
        IEEE80211_CH_INVALID = (1 << 6),
987
};
988
 
989
struct ieee80211_channel {
990
        u32 freq;       /* in MHz */
991
        u8 channel;
992
        u8 flags;
993
        u8 max_power;   /* in dBm */
994
};
995
 
996
struct ieee80211_geo {
997
        u8 name[4];
998
        u8 bg_channels;
999
        u8 a_channels;
1000
        struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
1001
        struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
1002
};
1003
 
1004
struct ieee80211_device {
1005
        struct net_device *dev;
1006
        struct ieee80211_security sec;
1007
 
1008
        /* Bookkeeping structures */
1009
        struct net_device_stats stats;
1010
        struct ieee80211_stats ieee_stats;
1011
 
1012
        struct ieee80211_geo geo;
1013
 
1014
        /* Probe / Beacon management */
1015
        struct list_head network_free_list;
1016
        struct list_head network_list;
1017
        struct ieee80211_network *networks;
1018
        int scans;
1019
        int scan_age;
1020
 
1021
        int iw_mode;            /* operating mode (IW_MODE_*) */
1022
        struct iw_spy_data spy_data;    /* iwspy support */
1023
 
1024
        spinlock_t lock;
1025
 
1026
        int tx_headroom;        /* Set to size of any additional room needed at front
1027
                                 * of allocated Tx SKBs */
1028
        u32 config;
1029
 
1030
        /* WEP and other encryption related settings at the device level */
1031
        int open_wep;           /* Set to 1 to allow unencrypted frames */
1032
 
1033
        int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
1034
                                 * WEP key changes */
1035
 
1036
        /* If the host performs {en,de}cryption, then set to 1 */
1037
        int host_encrypt;
1038
        int host_encrypt_msdu;
1039
        int host_decrypt;
1040
        /* host performs multicast decryption */
1041
        int host_mc_decrypt;
1042
 
1043
        /* host should strip IV and ICV from protected frames */
1044
        /* meaningful only when hardware decryption is being used */
1045
        int host_strip_iv_icv;
1046
 
1047
        int host_open_frag;
1048
        int host_build_iv;
1049
        int ieee802_1x;         /* is IEEE 802.1X used */
1050
 
1051
        /* WPA data */
1052
        int wpa_enabled;
1053
        int drop_unencrypted;
1054
        int privacy_invoked;
1055
        size_t wpa_ie_len;
1056
        u8 *wpa_ie;
1057
 
1058
        struct list_head crypt_deinit_list;
1059
        struct ieee80211_crypt_data *crypt[WEP_KEYS];
1060
        int tx_keyidx;          /* default TX key index (crypt[tx_keyidx]) */
1061
        struct timer_list crypt_deinit_timer;
1062
        int crypt_quiesced;
1063
 
1064
        int bcrx_sta_key;       /* use individual keys to override default keys even
1065
                                 * with RX of broad/multicast frames */
1066
 
1067
        /* Fragmentation structures */
1068
        struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
1069
        unsigned int frag_next_idx;
1070
        u16 fts;                /* Fragmentation Threshold */
1071
        u16 rts;                /* RTS threshold */
1072
 
1073
        /* Association info */
1074
        u8 bssid[ETH_ALEN];
1075
 
1076
        enum ieee80211_state state;
1077
 
1078
        int mode;               /* A, B, G */
1079
        int modulation;         /* CCK, OFDM */
1080
        int freq_band;          /* 2.4Ghz, 5.2Ghz, Mixed */
1081
        int abg_true;           /* ABG flag              */
1082
 
1083
        int perfect_rssi;
1084
        int worst_rssi;
1085
 
1086
        u16 prev_seq_ctl;       /* used to drop duplicate frames */
1087
 
1088
        /* Callback functions */
1089
        void (*set_security) (struct net_device * dev,
1090
                              struct ieee80211_security * sec);
1091
        int (*hard_start_xmit) (struct ieee80211_txb * txb,
1092
                                struct net_device * dev, int pri);
1093
        int (*reset_port) (struct net_device * dev);
1094
        int (*is_queue_full) (struct net_device * dev, int pri);
1095
 
1096
        int (*handle_management) (struct net_device * dev,
1097
                                  struct ieee80211_network * network, u16 type);
1098
        int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
1099
 
1100
        /* Typical STA methods */
1101
        int (*handle_auth) (struct net_device * dev,
1102
                            struct ieee80211_auth * auth);
1103
        int (*handle_deauth) (struct net_device * dev,
1104
                              struct ieee80211_deauth * auth);
1105
        int (*handle_action) (struct net_device * dev,
1106
                              struct ieee80211_action * action,
1107
                              struct ieee80211_rx_stats * stats);
1108
        int (*handle_disassoc) (struct net_device * dev,
1109
                                struct ieee80211_disassoc * assoc);
1110
        int (*handle_beacon) (struct net_device * dev,
1111
                              struct ieee80211_beacon * beacon,
1112
                              struct ieee80211_network * network);
1113
        int (*handle_probe_response) (struct net_device * dev,
1114
                                      struct ieee80211_probe_response * resp,
1115
                                      struct ieee80211_network * network);
1116
        int (*handle_probe_request) (struct net_device * dev,
1117
                                     struct ieee80211_probe_request * req,
1118
                                     struct ieee80211_rx_stats * stats);
1119
        int (*handle_assoc_response) (struct net_device * dev,
1120
                                      struct ieee80211_assoc_response * resp,
1121
                                      struct ieee80211_network * network);
1122
 
1123
        /* Typical AP methods */
1124
        int (*handle_assoc_request) (struct net_device * dev);
1125
        int (*handle_reassoc_request) (struct net_device * dev,
1126
                                       struct ieee80211_reassoc_request * req);
1127
 
1128
        /* This must be the last item so that it points to the data
1129
         * allocated beyond this structure by alloc_ieee80211 */
1130
        u8 priv[0];
1131
};
1132
 
1133
#define IEEE_A            (1<<0)
1134
#define IEEE_B            (1<<1)
1135
#define IEEE_G            (1<<2)
1136
#define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
1137
 
1138
static inline void *ieee80211_priv(struct net_device *dev)
1139
{
1140
        return ((struct ieee80211_device *)netdev_priv(dev))->priv;
1141
}
1142
 
1143
static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
1144
{
1145
        /* Single white space is for Linksys APs */
1146
        if (essid_len == 1 && essid[0] == ' ')
1147
                return 1;
1148
 
1149
        /* Otherwise, if the entire essid is 0, we assume it is hidden */
1150
        while (essid_len) {
1151
                essid_len--;
1152
                if (essid[essid_len] != '\0')
1153
                        return 0;
1154
        }
1155
 
1156
        return 1;
1157
}
1158
 
1159
static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
1160
                                          int mode)
1161
{
1162
        /*
1163
         * It is possible for both access points and our device to support
1164
         * combinations of modes, so as long as there is one valid combination
1165
         * of ap/device supported modes, then return success
1166
         *
1167
         */
1168
        if ((mode & IEEE_A) &&
1169
            (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
1170
            (ieee->freq_band & IEEE80211_52GHZ_BAND))
1171
                return 1;
1172
 
1173
        if ((mode & IEEE_G) &&
1174
            (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
1175
            (ieee->freq_band & IEEE80211_24GHZ_BAND))
1176
                return 1;
1177
 
1178
        if ((mode & IEEE_B) &&
1179
            (ieee->modulation & IEEE80211_CCK_MODULATION) &&
1180
            (ieee->freq_band & IEEE80211_24GHZ_BAND))
1181
                return 1;
1182
 
1183
        return 0;
1184
}
1185
 
1186
static inline int ieee80211_get_hdrlen(u16 fc)
1187
{
1188
        int hdrlen = IEEE80211_3ADDR_LEN;
1189
        u16 stype = WLAN_FC_GET_STYPE(fc);
1190
 
1191
        switch (WLAN_FC_GET_TYPE(fc)) {
1192
        case IEEE80211_FTYPE_DATA:
1193
                if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
1194
                        hdrlen = IEEE80211_4ADDR_LEN;
1195
                if (stype & IEEE80211_STYPE_QOS_DATA)
1196
                        hdrlen += 2;
1197
                break;
1198
        case IEEE80211_FTYPE_CTL:
1199
                switch (WLAN_FC_GET_STYPE(fc)) {
1200
                case IEEE80211_STYPE_CTS:
1201
                case IEEE80211_STYPE_ACK:
1202
                        hdrlen = IEEE80211_1ADDR_LEN;
1203
                        break;
1204
                default:
1205
                        hdrlen = IEEE80211_2ADDR_LEN;
1206
                        break;
1207
                }
1208
                break;
1209
        }
1210
 
1211
        return hdrlen;
1212
}
1213
 
1214
static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
1215
{
1216
        switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) {
1217
        case IEEE80211_1ADDR_LEN:
1218
                return ((struct ieee80211_hdr_1addr *)hdr)->payload;
1219
        case IEEE80211_2ADDR_LEN:
1220
                return ((struct ieee80211_hdr_2addr *)hdr)->payload;
1221
        case IEEE80211_3ADDR_LEN:
1222
                return ((struct ieee80211_hdr_3addr *)hdr)->payload;
1223
        case IEEE80211_4ADDR_LEN:
1224
                return ((struct ieee80211_hdr_4addr *)hdr)->payload;
1225
        }
1226
        return NULL;
1227
}
1228
 
1229
static inline int ieee80211_is_ofdm_rate(u8 rate)
1230
{
1231
        switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1232
        case IEEE80211_OFDM_RATE_6MB:
1233
        case IEEE80211_OFDM_RATE_9MB:
1234
        case IEEE80211_OFDM_RATE_12MB:
1235
        case IEEE80211_OFDM_RATE_18MB:
1236
        case IEEE80211_OFDM_RATE_24MB:
1237
        case IEEE80211_OFDM_RATE_36MB:
1238
        case IEEE80211_OFDM_RATE_48MB:
1239
        case IEEE80211_OFDM_RATE_54MB:
1240
                return 1;
1241
        }
1242
        return 0;
1243
}
1244
 
1245
static inline int ieee80211_is_cck_rate(u8 rate)
1246
{
1247
        switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1248
        case IEEE80211_CCK_RATE_1MB:
1249
        case IEEE80211_CCK_RATE_2MB:
1250
        case IEEE80211_CCK_RATE_5MB:
1251
        case IEEE80211_CCK_RATE_11MB:
1252
                return 1;
1253
        }
1254
        return 0;
1255
}
1256
 
1257
/* ieee80211.c */
1258
extern void free_ieee80211(struct net_device *dev);
1259
extern struct net_device *alloc_ieee80211(int sizeof_priv);
1260
 
1261
extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
1262
 
1263
/* ieee80211_tx.c */
1264
extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
1265
extern void ieee80211_txb_free(struct ieee80211_txb *);
1266
extern int ieee80211_tx_frame(struct ieee80211_device *ieee,
1267
                              struct ieee80211_hdr *frame, int hdr_len,
1268
                              int total_len, int encrypt_mpdu);
1269
 
1270
/* ieee80211_rx.c */
1271
extern void ieee80211_rx_any(struct ieee80211_device *ieee,
1272
                     struct sk_buff *skb, struct ieee80211_rx_stats *stats);
1273
extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
1274
                        struct ieee80211_rx_stats *rx_stats);
1275
/* make sure to set stats->len */
1276
extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
1277
                             struct ieee80211_hdr_4addr *header,
1278
                             struct ieee80211_rx_stats *stats);
1279
extern void ieee80211_network_reset(struct ieee80211_network *network);
1280
 
1281
/* ieee80211_geo.c */
1282
extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
1283
                                                     *ieee);
1284
extern int ieee80211_set_geo(struct ieee80211_device *ieee,
1285
                             const struct ieee80211_geo *geo);
1286
 
1287
extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
1288
                                      u8 channel);
1289
extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
1290
                                      u8 channel);
1291
extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
1292
extern u8 ieee80211_get_channel_flags(struct ieee80211_device *ieee,
1293
                                      u8 channel);
1294
extern const struct ieee80211_channel *ieee80211_get_channel(struct
1295
                                                             ieee80211_device
1296
                                                             *ieee, u8 channel);
1297
extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee,
1298
                                      u8 channel);
1299
 
1300
/* ieee80211_wx.c */
1301
extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
1302
                                 struct iw_request_info *info,
1303
                                 union iwreq_data *wrqu, char *key);
1304
extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
1305
                                   struct iw_request_info *info,
1306
                                   union iwreq_data *wrqu, char *key);
1307
extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
1308
                                   struct iw_request_info *info,
1309
                                   union iwreq_data *wrqu, char *key);
1310
extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
1311
                                      struct iw_request_info *info,
1312
                                      union iwreq_data *wrqu, char *extra);
1313
extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
1314
                                      struct iw_request_info *info,
1315
                                      union iwreq_data *wrqu, char *extra);
1316
extern int ieee80211_wx_set_auth(struct net_device *dev,
1317
                                 struct iw_request_info *info,
1318
                                 union iwreq_data *wrqu,
1319
                                 char *extra);
1320
extern int ieee80211_wx_get_auth(struct net_device *dev,
1321
                                 struct iw_request_info *info,
1322
                                 union iwreq_data *wrqu,
1323
                                 char *extra);
1324
 
1325
static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
1326
{
1327
        ieee->scans++;
1328
}
1329
 
1330
static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
1331
{
1332
        return ieee->scans;
1333
}
1334
 
1335
#endif                          /* IEEE80211_H */

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