2 * Merged with mainline ieee80211.h in Aug 2004. Original ieee802_11
3 * remains copyright by the original authors
5 * Portions of the merged code are based on Host AP (software wireless
6 * LAN access point) driver for Intersil Prism2/2.5/3.
8 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
10 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
12 * Adaption to a generic IEEE 802.11 stack by James Ketrenos
13 * <jketreno@linux.intel.com>
14 * Copyright (c) 2004-2005, Intel Corporation
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
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
28 #include <linux/if_ether.h> /* ETH_ALEN */
29 #include <linux/kernel.h> /* ARRAY_SIZE */
30 #include <linux/wireless.h>
32 #define IEEE80211_VERSION "git-1.1.7"
34 #define IEEE80211_DATA_LEN 2304
35 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
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) */
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)
51 #define MIN_FRAG_THRESHOLD 256U
52 #define MAX_FRAG_THRESHOLD 2346U
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
67 #define IEEE80211_FTYPE_MGMT 0x0000
68 #define IEEE80211_FTYPE_CTL 0x0004
69 #define IEEE80211_FTYPE_DATA 0x0008
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
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
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
104 #define IEEE80211_SCTL_FRAG 0x000F
105 #define IEEE80211_SCTL_SEQ 0xFFF0
109 #ifdef CONFIG_IEEE80211_DEBUG
110 extern u32 ieee80211_debug_level
;
111 #define IEEE80211_DEBUG(level, fmt, args...) \
112 do { if (ieee80211_debug_level & (level)) \
113 printk(KERN_DEBUG "ieee80211: %c %s " fmt, \
114 in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
116 #define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
117 #endif /* CONFIG_IEEE80211_DEBUG */
119 /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */
121 #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
122 #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
124 /* escape_essid() is intended to be used in debug (and possibly error)
125 * messages. It should never be used for passing essid to user space. */
126 const char *escape_essid(const char *essid
, u8 essid_len
);
129 * To use the debug system:
131 * If you are defining a new debug classification, simply add it to the #define
132 * list here in the form of:
134 * #define IEEE80211_DL_xxxx VALUE
136 * shifting value to the left one bit from the previous entry. xxxx should be
137 * the name of the classification (for example, WEP)
139 * You then need to either add a IEEE80211_xxxx_DEBUG() macro definition for your
140 * classification, or use IEEE80211_DEBUG(IEEE80211_DL_xxxx, ...) whenever you want
141 * to send output to that classification.
143 * To add your debug level to the list of levels seen when you perform
145 * % cat /proc/net/ieee80211/debug_level
147 * you simply need to add your entry to the ieee80211_debug_level array.
149 * If you do not see debug_level in /proc/net/ieee80211 then you do not have
150 * CONFIG_IEEE80211_DEBUG defined in your kernel configuration
154 #define IEEE80211_DL_INFO (1<<0)
155 #define IEEE80211_DL_WX (1<<1)
156 #define IEEE80211_DL_SCAN (1<<2)
157 #define IEEE80211_DL_STATE (1<<3)
158 #define IEEE80211_DL_MGMT (1<<4)
159 #define IEEE80211_DL_FRAG (1<<5)
160 #define IEEE80211_DL_DROP (1<<7)
162 #define IEEE80211_DL_TX (1<<8)
163 #define IEEE80211_DL_RX (1<<9)
164 #define IEEE80211_DL_QOS (1<<31)
166 #define IEEE80211_ERROR(f, a...) printk(KERN_ERR "ieee80211: " f, ## a)
167 #define IEEE80211_WARNING(f, a...) printk(KERN_WARNING "ieee80211: " f, ## a)
168 #define IEEE80211_DEBUG_INFO(f, a...) IEEE80211_DEBUG(IEEE80211_DL_INFO, f, ## a)
170 #define IEEE80211_DEBUG_WX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_WX, f, ## a)
171 #define IEEE80211_DEBUG_SCAN(f, a...) IEEE80211_DEBUG(IEEE80211_DL_SCAN, f, ## a)
172 #define IEEE80211_DEBUG_STATE(f, a...) IEEE80211_DEBUG(IEEE80211_DL_STATE, f, ## a)
173 #define IEEE80211_DEBUG_MGMT(f, a...) IEEE80211_DEBUG(IEEE80211_DL_MGMT, f, ## a)
174 #define IEEE80211_DEBUG_FRAG(f, a...) IEEE80211_DEBUG(IEEE80211_DL_FRAG, f, ## a)
175 #define IEEE80211_DEBUG_DROP(f, a...) IEEE80211_DEBUG(IEEE80211_DL_DROP, f, ## a)
176 #define IEEE80211_DEBUG_TX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_TX, f, ## a)
177 #define IEEE80211_DEBUG_RX(f, a...) IEEE80211_DEBUG(IEEE80211_DL_RX, f, ## a)
178 #define IEEE80211_DEBUG_QOS(f, a...) IEEE80211_DEBUG(IEEE80211_DL_QOS, f, ## a)
179 #include <linux/netdevice.h>
180 #include <linux/wireless.h>
181 #include <linux/if_arp.h> /* ARPHRD_ETHER */
184 #define WIRELESS_SPY /* enable iwspy support */
186 #include <net/iw_handler.h> /* new driver API */
189 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
190 #endif /* ETH_P_PAE */
192 #define ETH_P_PREAUTH 0x88C7 /* IEEE 802.11i pre-authentication */
194 #ifndef ETH_P_80211_RAW
195 #define ETH_P_80211_RAW (ETH_P_ECONET + 1)
198 /* IEEE 802.11 defines */
200 #define P80211_OUI_LEN 3
202 struct ieee80211_snap_hdr
{
204 u8 dsap
; /* always 0xAA */
205 u8 ssap
; /* always 0xAA */
206 u8 ctrl
; /* always 0x03 */
207 u8 oui
[P80211_OUI_LEN
]; /* organizational universal id */
209 } __attribute__ ((packed
));
211 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
213 #define WLAN_FC_GET_VERS(fc) ((fc) & IEEE80211_FCTL_VERS)
214 #define WLAN_FC_GET_TYPE(fc) ((fc) & IEEE80211_FCTL_FTYPE)
215 #define WLAN_FC_GET_STYPE(fc) ((fc) & IEEE80211_FCTL_STYPE)
217 #define WLAN_GET_SEQ_FRAG(seq) ((seq) & IEEE80211_SCTL_FRAG)
218 #define WLAN_GET_SEQ_SEQ(seq) ((seq) & IEEE80211_SCTL_SEQ)
220 /* Authentication algorithms */
221 #define WLAN_AUTH_OPEN 0
222 #define WLAN_AUTH_SHARED_KEY 1
224 #define WLAN_AUTH_CHALLENGE_LEN 128
226 #define WLAN_CAPABILITY_ESS (1<<0)
227 #define WLAN_CAPABILITY_IBSS (1<<1)
228 #define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
229 #define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
230 #define WLAN_CAPABILITY_PRIVACY (1<<4)
231 #define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
232 #define WLAN_CAPABILITY_PBCC (1<<6)
233 #define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
234 #define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
235 #define WLAN_CAPABILITY_QOS (1<<9)
236 #define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
237 #define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
240 enum ieee80211_statuscode
{
241 WLAN_STATUS_SUCCESS
= 0,
242 WLAN_STATUS_UNSPECIFIED_FAILURE
= 1,
243 WLAN_STATUS_CAPS_UNSUPPORTED
= 10,
244 WLAN_STATUS_REASSOC_NO_ASSOC
= 11,
245 WLAN_STATUS_ASSOC_DENIED_UNSPEC
= 12,
246 WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG
= 13,
247 WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION
= 14,
248 WLAN_STATUS_CHALLENGE_FAIL
= 15,
249 WLAN_STATUS_AUTH_TIMEOUT
= 16,
250 WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA
= 17,
251 WLAN_STATUS_ASSOC_DENIED_RATES
= 18,
253 WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE
= 19,
254 WLAN_STATUS_ASSOC_DENIED_NOPBCC
= 20,
255 WLAN_STATUS_ASSOC_DENIED_NOAGILITY
= 21,
257 WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM
= 22,
258 WLAN_STATUS_ASSOC_REJECTED_BAD_POWER
= 23,
259 WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN
= 24,
261 WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME
= 25,
262 WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM
= 26,
264 WLAN_STATUS_INVALID_IE
= 40,
265 WLAN_STATUS_INVALID_GROUP_CIPHER
= 41,
266 WLAN_STATUS_INVALID_PAIRWISE_CIPHER
= 42,
267 WLAN_STATUS_INVALID_AKMP
= 43,
268 WLAN_STATUS_UNSUPP_RSN_VERSION
= 44,
269 WLAN_STATUS_INVALID_RSN_IE_CAP
= 45,
270 WLAN_STATUS_CIPHER_SUITE_REJECTED
= 46,
274 enum ieee80211_reasoncode
{
275 WLAN_REASON_UNSPECIFIED
= 1,
276 WLAN_REASON_PREV_AUTH_NOT_VALID
= 2,
277 WLAN_REASON_DEAUTH_LEAVING
= 3,
278 WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY
= 4,
279 WLAN_REASON_DISASSOC_AP_BUSY
= 5,
280 WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA
= 6,
281 WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA
= 7,
282 WLAN_REASON_DISASSOC_STA_HAS_LEFT
= 8,
283 WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH
= 9,
285 WLAN_REASON_DISASSOC_BAD_POWER
= 10,
286 WLAN_REASON_DISASSOC_BAD_SUPP_CHAN
= 11,
288 WLAN_REASON_INVALID_IE
= 13,
289 WLAN_REASON_MIC_FAILURE
= 14,
290 WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT
= 15,
291 WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT
= 16,
292 WLAN_REASON_IE_DIFFERENT
= 17,
293 WLAN_REASON_INVALID_GROUP_CIPHER
= 18,
294 WLAN_REASON_INVALID_PAIRWISE_CIPHER
= 19,
295 WLAN_REASON_INVALID_AKMP
= 20,
296 WLAN_REASON_UNSUPP_RSN_VERSION
= 21,
297 WLAN_REASON_INVALID_RSN_IE_CAP
= 22,
298 WLAN_REASON_IEEE8021X_FAILED
= 23,
299 WLAN_REASON_CIPHER_SUITE_REJECTED
= 24,
302 #define IEEE80211_STATMASK_SIGNAL (1<<0)
303 #define IEEE80211_STATMASK_RSSI (1<<1)
304 #define IEEE80211_STATMASK_NOISE (1<<2)
305 #define IEEE80211_STATMASK_RATE (1<<3)
306 #define IEEE80211_STATMASK_WEMASK 0x7
308 #define IEEE80211_CCK_MODULATION (1<<0)
309 #define IEEE80211_OFDM_MODULATION (1<<1)
311 #define IEEE80211_24GHZ_BAND (1<<0)
312 #define IEEE80211_52GHZ_BAND (1<<1)
314 #define IEEE80211_CCK_RATE_1MB 0x02
315 #define IEEE80211_CCK_RATE_2MB 0x04
316 #define IEEE80211_CCK_RATE_5MB 0x0B
317 #define IEEE80211_CCK_RATE_11MB 0x16
318 #define IEEE80211_OFDM_RATE_6MB 0x0C
319 #define IEEE80211_OFDM_RATE_9MB 0x12
320 #define IEEE80211_OFDM_RATE_12MB 0x18
321 #define IEEE80211_OFDM_RATE_18MB 0x24
322 #define IEEE80211_OFDM_RATE_24MB 0x30
323 #define IEEE80211_OFDM_RATE_36MB 0x48
324 #define IEEE80211_OFDM_RATE_48MB 0x60
325 #define IEEE80211_OFDM_RATE_54MB 0x6C
326 #define IEEE80211_BASIC_RATE_MASK 0x80
328 #define IEEE80211_CCK_RATE_1MB_MASK (1<<0)
329 #define IEEE80211_CCK_RATE_2MB_MASK (1<<1)
330 #define IEEE80211_CCK_RATE_5MB_MASK (1<<2)
331 #define IEEE80211_CCK_RATE_11MB_MASK (1<<3)
332 #define IEEE80211_OFDM_RATE_6MB_MASK (1<<4)
333 #define IEEE80211_OFDM_RATE_9MB_MASK (1<<5)
334 #define IEEE80211_OFDM_RATE_12MB_MASK (1<<6)
335 #define IEEE80211_OFDM_RATE_18MB_MASK (1<<7)
336 #define IEEE80211_OFDM_RATE_24MB_MASK (1<<8)
337 #define IEEE80211_OFDM_RATE_36MB_MASK (1<<9)
338 #define IEEE80211_OFDM_RATE_48MB_MASK (1<<10)
339 #define IEEE80211_OFDM_RATE_54MB_MASK (1<<11)
341 #define IEEE80211_CCK_RATES_MASK 0x0000000F
342 #define IEEE80211_CCK_BASIC_RATES_MASK (IEEE80211_CCK_RATE_1MB_MASK | \
343 IEEE80211_CCK_RATE_2MB_MASK)
344 #define IEEE80211_CCK_DEFAULT_RATES_MASK (IEEE80211_CCK_BASIC_RATES_MASK | \
345 IEEE80211_CCK_RATE_5MB_MASK | \
346 IEEE80211_CCK_RATE_11MB_MASK)
348 #define IEEE80211_OFDM_RATES_MASK 0x00000FF0
349 #define IEEE80211_OFDM_BASIC_RATES_MASK (IEEE80211_OFDM_RATE_6MB_MASK | \
350 IEEE80211_OFDM_RATE_12MB_MASK | \
351 IEEE80211_OFDM_RATE_24MB_MASK)
352 #define IEEE80211_OFDM_DEFAULT_RATES_MASK (IEEE80211_OFDM_BASIC_RATES_MASK | \
353 IEEE80211_OFDM_RATE_9MB_MASK | \
354 IEEE80211_OFDM_RATE_18MB_MASK | \
355 IEEE80211_OFDM_RATE_36MB_MASK | \
356 IEEE80211_OFDM_RATE_48MB_MASK | \
357 IEEE80211_OFDM_RATE_54MB_MASK)
358 #define IEEE80211_DEFAULT_RATES_MASK (IEEE80211_OFDM_DEFAULT_RATES_MASK | \
359 IEEE80211_CCK_DEFAULT_RATES_MASK)
361 #define IEEE80211_NUM_OFDM_RATES 8
362 #define IEEE80211_NUM_CCK_RATES 4
363 #define IEEE80211_OFDM_SHIFT_MASK_A 4
365 /* NOTE: This data is for statistical purposes; not all hardware provides this
366 * information for frames received. Not setting these will not cause
367 * any adverse affects. */
368 struct ieee80211_rx_stats
{
373 u16 rate
; /* in 100 kbps */
381 /* IEEE 802.11 requires that STA supports concurrent reception of at least
382 * three fragmented frames. This define can be increased to support more
383 * concurrent frames, but it should be noted that each entry can consume about
384 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
385 #define IEEE80211_FRAG_CACHE_LEN 4
387 struct ieee80211_frag_entry
{
388 unsigned long first_frag_time
;
390 unsigned int last_frag
;
392 u8 src_addr
[ETH_ALEN
];
393 u8 dst_addr
[ETH_ALEN
];
396 struct ieee80211_stats
{
397 unsigned int tx_unicast_frames
;
398 unsigned int tx_multicast_frames
;
399 unsigned int tx_fragments
;
400 unsigned int tx_unicast_octets
;
401 unsigned int tx_multicast_octets
;
402 unsigned int tx_deferred_transmissions
;
403 unsigned int tx_single_retry_frames
;
404 unsigned int tx_multiple_retry_frames
;
405 unsigned int tx_retry_limit_exceeded
;
406 unsigned int tx_discards
;
407 unsigned int rx_unicast_frames
;
408 unsigned int rx_multicast_frames
;
409 unsigned int rx_fragments
;
410 unsigned int rx_unicast_octets
;
411 unsigned int rx_multicast_octets
;
412 unsigned int rx_fcs_errors
;
413 unsigned int rx_discards_no_buffer
;
414 unsigned int tx_discards_wrong_sa
;
415 unsigned int rx_discards_undecryptable
;
416 unsigned int rx_message_in_msg_fragments
;
417 unsigned int rx_message_in_bad_msg_fragments
;
420 struct ieee80211_device
;
422 #include "ieee80211_crypt.h"
424 #define SEC_KEY_1 (1<<0)
425 #define SEC_KEY_2 (1<<1)
426 #define SEC_KEY_3 (1<<2)
427 #define SEC_KEY_4 (1<<3)
428 #define SEC_ACTIVE_KEY (1<<4)
429 #define SEC_AUTH_MODE (1<<5)
430 #define SEC_UNICAST_GROUP (1<<6)
431 #define SEC_LEVEL (1<<7)
432 #define SEC_ENABLED (1<<8)
433 #define SEC_ENCRYPT (1<<9)
435 #define SEC_LEVEL_0 0 /* None */
436 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
437 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
438 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
439 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
441 #define SEC_ALG_NONE 0
442 #define SEC_ALG_WEP 1
443 #define SEC_ALG_TKIP 2
444 #define SEC_ALG_CCMP 3
447 #define WEP_KEY_LEN 13
448 #define SCM_KEY_LEN 32
449 #define SCM_TEMPORAL_KEY_LENGTH 16
451 struct ieee80211_security
{
454 auth_mode
:2, auth_algo
:4, unicast_uses_group
:1, encrypt
:1;
455 u8 encode_alg
[WEP_KEYS
];
456 u8 key_sizes
[WEP_KEYS
];
457 u8 keys
[WEP_KEYS
][SCM_KEY_LEN
];
460 } __attribute__ ((packed
));
464 802.11 data frame from AP
466 ,-------------------------------------------------------------------.
467 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
468 |------|------|---------|---------|---------|------|---------|------|
469 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
470 | | tion | (BSSID) | | | ence | data | |
471 `-------------------------------------------------------------------'
477 #define BEACON_PROBE_SSID_ID_POSITION 12
479 /* Management Frame Information Element Types */
480 enum ieee80211_mfie
{
483 MFIE_TYPE_FH_SET
= 2,
484 MFIE_TYPE_DS_SET
= 3,
485 MFIE_TYPE_CF_SET
= 4,
487 MFIE_TYPE_IBSS_SET
= 6,
488 MFIE_TYPE_COUNTRY
= 7,
489 MFIE_TYPE_HOP_PARAMS
= 8,
490 MFIE_TYPE_HOP_TABLE
= 9,
491 MFIE_TYPE_REQUEST
= 10,
492 MFIE_TYPE_CHALLENGE
= 16,
493 MFIE_TYPE_POWER_CONSTRAINT
= 32,
494 MFIE_TYPE_POWER_CAPABILITY
= 33,
495 MFIE_TYPE_TPC_REQUEST
= 34,
496 MFIE_TYPE_TPC_REPORT
= 35,
497 MFIE_TYPE_SUPP_CHANNELS
= 36,
499 MFIE_TYPE_MEASURE_REQUEST
= 38,
500 MFIE_TYPE_MEASURE_REPORT
= 39,
501 MFIE_TYPE_QUIET
= 40,
502 MFIE_TYPE_IBSS_DFS
= 41,
503 MFIE_TYPE_ERP_INFO
= 42,
505 MFIE_TYPE_RATES_EX
= 50,
506 MFIE_TYPE_GENERIC
= 221,
507 MFIE_TYPE_QOS_PARAMETER
= 222,
510 /* Minimal header; can be used for passing 802.11 frames with sufficient
511 * information to determine what type of underlying data type is actually
512 * stored in the data. */
513 struct ieee80211_hdr
{
517 } __attribute__ ((packed
));
519 struct ieee80211_hdr_1addr
{
524 } __attribute__ ((packed
));
526 struct ieee80211_hdr_2addr
{
532 } __attribute__ ((packed
));
534 struct ieee80211_hdr_3addr
{
542 } __attribute__ ((packed
));
544 struct ieee80211_hdr_4addr
{
553 } __attribute__ ((packed
));
555 struct ieee80211_hdr_3addrqos
{
564 } __attribute__ ((packed
));
566 struct ieee80211_hdr_4addrqos
{
576 } __attribute__ ((packed
));
578 struct ieee80211_info_element
{
582 } __attribute__ ((packed
));
585 * These are the data types that can make up management packets
591 u8 current_ap[ETH_ALEN];
594 u16 association_id:14, reserved:2;
595 } __attribute__ ((packed));
601 struct ieee80211_auth
{
602 struct ieee80211_hdr_3addr header
;
607 struct ieee80211_info_element info_element
[0];
608 } __attribute__ ((packed
));
610 struct ieee80211_disassoc
{
611 struct ieee80211_hdr_3addr header
;
613 } __attribute__ ((packed
));
615 /* Alias deauth for disassoc */
616 #define ieee80211_deauth ieee80211_disassoc
618 struct ieee80211_probe_request
{
619 struct ieee80211_hdr_3addr header
;
620 /* SSID, supported rates */
621 struct ieee80211_info_element info_element
[0];
622 } __attribute__ ((packed
));
624 struct ieee80211_probe_response
{
625 struct ieee80211_hdr_3addr header
;
627 __le16 beacon_interval
;
629 /* SSID, supported rates, FH params, DS params,
630 * CF params, IBSS params, TIM (if beacon), RSN */
631 struct ieee80211_info_element info_element
[0];
632 } __attribute__ ((packed
));
634 /* Alias beacon for probe_response */
635 #define ieee80211_beacon ieee80211_probe_response
637 struct ieee80211_assoc_request
{
638 struct ieee80211_hdr_3addr header
;
640 __le16 listen_interval
;
641 /* SSID, supported rates, RSN */
642 struct ieee80211_info_element info_element
[0];
643 } __attribute__ ((packed
));
645 struct ieee80211_reassoc_request
{
646 struct ieee80211_hdr_3addr header
;
648 __le16 listen_interval
;
649 u8 current_ap
[ETH_ALEN
];
650 struct ieee80211_info_element info_element
[0];
651 } __attribute__ ((packed
));
653 struct ieee80211_assoc_response
{
654 struct ieee80211_hdr_3addr header
;
658 /* supported rates */
659 struct ieee80211_info_element info_element
[0];
660 } __attribute__ ((packed
));
662 struct ieee80211_txb
{
669 struct sk_buff
*fragments
[0];
672 /* SWEEP TABLE ENTRIES NUMBER */
673 #define MAX_SWEEP_TAB_ENTRIES 42
674 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
675 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
676 * only use 8, and then use extended rates for the remaining supported
677 * rates. Other APs, however, stick all of their supported rates on the
678 * main rates information element... */
679 #define MAX_RATES_LENGTH ((u8)12)
680 #define MAX_RATES_EX_LENGTH ((u8)16)
681 #define MAX_NETWORK_COUNT 128
683 #define CRC_LENGTH 4U
685 #define MAX_WPA_IE_LEN 64
687 #define NETWORK_EMPTY_ESSID (1<<0)
688 #define NETWORK_HAS_OFDM (1<<1)
689 #define NETWORK_HAS_CCK (1<<2)
692 #define NETWORK_HAS_QOS_PARAMETERS (1<<3)
693 #define NETWORK_HAS_QOS_INFORMATION (1<<4)
694 #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | NETWORK_HAS_QOS_INFORMATION)
696 #define QOS_QUEUE_NUM 4
697 #define QOS_OUI_LEN 3
698 #define QOS_OUI_TYPE 2
699 #define QOS_ELEMENT_ID 221
700 #define QOS_OUI_INFO_SUB_TYPE 0
701 #define QOS_OUI_PARAM_SUB_TYPE 1
702 #define QOS_VERSION_1 1
703 #define QOS_AIFSN_MIN_VALUE 2
705 struct ieee80211_qos_information_element
{
713 } __attribute__ ((packed
));
715 struct ieee80211_qos_ac_parameter
{
719 } __attribute__ ((packed
));
721 struct ieee80211_qos_parameter_info
{
722 struct ieee80211_qos_information_element info_element
;
724 struct ieee80211_qos_ac_parameter ac_params_record
[QOS_QUEUE_NUM
];
725 } __attribute__ ((packed
));
727 struct ieee80211_qos_parameters
{
728 __le16 cw_min
[QOS_QUEUE_NUM
];
729 __le16 cw_max
[QOS_QUEUE_NUM
];
730 u8 aifs
[QOS_QUEUE_NUM
];
731 u8 flag
[QOS_QUEUE_NUM
];
732 __le16 tx_op_limit
[QOS_QUEUE_NUM
];
733 } __attribute__ ((packed
));
735 struct ieee80211_qos_data
{
736 struct ieee80211_qos_parameters parameters
;
743 struct ieee80211_tim_parameters
{
746 } __attribute__ ((packed
));
748 /*******************************************************/
750 struct ieee80211_network
{
751 /* These entries are used to identify a unique network */
754 /* Ensure null-terminated for any debug msgs */
755 u8 ssid
[IW_ESSID_MAX_SIZE
+ 1];
758 struct ieee80211_qos_data qos_data
;
760 /* These are network statistics */
761 struct ieee80211_rx_stats stats
;
763 u8 rates
[MAX_RATES_LENGTH
];
765 u8 rates_ex
[MAX_RATES_EX_LENGTH
];
767 unsigned long last_scanned
;
776 u8 wpa_ie
[MAX_WPA_IE_LEN
];
778 u8 rsn_ie
[MAX_WPA_IE_LEN
];
780 struct ieee80211_tim_parameters tim
;
781 struct list_head list
;
784 enum ieee80211_state
{
785 IEEE80211_UNINITIALIZED
= 0,
786 IEEE80211_INITIALIZED
,
787 IEEE80211_ASSOCIATING
,
788 IEEE80211_ASSOCIATED
,
789 IEEE80211_AUTHENTICATING
,
790 IEEE80211_AUTHENTICATED
,
794 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
795 #define DEFAULT_FTS 2346
797 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
798 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
799 #define CFG_IEEE80211_RTS (1<<2)
801 #define IEEE80211_24GHZ_MIN_CHANNEL 1
802 #define IEEE80211_24GHZ_MAX_CHANNEL 14
803 #define IEEE80211_24GHZ_CHANNELS 14
805 #define IEEE80211_52GHZ_MIN_CHANNEL 36
806 #define IEEE80211_52GHZ_MAX_CHANNEL 165
807 #define IEEE80211_52GHZ_CHANNELS 32
810 IEEE80211_CH_PASSIVE_ONLY
= (1 << 0),
811 IEEE80211_CH_B_ONLY
= (1 << 2),
812 IEEE80211_CH_NO_IBSS
= (1 << 3),
813 IEEE80211_CH_UNIFORM_SPREADING
= (1 << 4),
814 IEEE80211_CH_RADAR_DETECT
= (1 << 5),
815 IEEE80211_CH_INVALID
= (1 << 6),
818 struct ieee80211_channel
{
825 struct ieee80211_geo
{
829 struct ieee80211_channel bg
[IEEE80211_24GHZ_CHANNELS
];
830 struct ieee80211_channel a
[IEEE80211_52GHZ_CHANNELS
];
833 struct ieee80211_device
{
834 struct net_device
*dev
;
835 struct ieee80211_security sec
;
837 /* Bookkeeping structures */
838 struct net_device_stats stats
;
839 struct ieee80211_stats ieee_stats
;
841 struct ieee80211_geo geo
;
843 /* Probe / Beacon management */
844 struct list_head network_free_list
;
845 struct list_head network_list
;
846 struct ieee80211_network
*networks
;
850 int iw_mode
; /* operating mode (IW_MODE_*) */
851 struct iw_spy_data spy_data
; /* iwspy support */
855 int tx_headroom
; /* Set to size of any additional room needed at front
856 * of allocated Tx SKBs */
859 /* WEP and other encryption related settings at the device level */
860 int open_wep
; /* Set to 1 to allow unencrypted frames */
862 int reset_on_keychange
; /* Set to 1 if the HW needs to be reset on
865 /* If the host performs {en,de}cryption, then set to 1 */
867 int host_encrypt_msdu
;
869 /* host performs multicast decryption */
874 int ieee802_1x
; /* is IEEE 802.1X used */
878 int drop_unencrypted
;
883 struct list_head crypt_deinit_list
;
884 struct ieee80211_crypt_data
*crypt
[WEP_KEYS
];
885 int tx_keyidx
; /* default TX key index (crypt[tx_keyidx]) */
886 struct timer_list crypt_deinit_timer
;
889 int bcrx_sta_key
; /* use individual keys to override default keys even
890 * with RX of broad/multicast frames */
892 /* Fragmentation structures */
893 struct ieee80211_frag_entry frag_cache
[IEEE80211_FRAG_CACHE_LEN
];
894 unsigned int frag_next_idx
;
895 u16 fts
; /* Fragmentation Threshold */
896 u16 rts
; /* RTS threshold */
898 /* Association info */
901 enum ieee80211_state state
;
903 int mode
; /* A, B, G */
904 int modulation
; /* CCK, OFDM */
905 int freq_band
; /* 2.4Ghz, 5.2Ghz, Mixed */
906 int abg_true
; /* ABG flag */
911 /* Callback functions */
912 void (*set_security
) (struct net_device
* dev
,
913 struct ieee80211_security
* sec
);
914 int (*hard_start_xmit
) (struct ieee80211_txb
* txb
,
915 struct net_device
* dev
, int pri
);
916 int (*reset_port
) (struct net_device
* dev
);
917 int (*is_queue_full
) (struct net_device
* dev
, int pri
);
919 int (*handle_management
) (struct net_device
* dev
,
920 struct ieee80211_network
* network
, u16 type
);
922 /* Typical STA methods */
923 int (*handle_auth
) (struct net_device
* dev
,
924 struct ieee80211_auth
* auth
);
925 int (*handle_deauth
) (struct net_device
* dev
,
926 struct ieee80211_auth
* auth
);
927 int (*handle_disassoc
) (struct net_device
* dev
,
928 struct ieee80211_disassoc
* assoc
);
929 int (*handle_beacon
) (struct net_device
* dev
,
930 struct ieee80211_beacon
* beacon
,
931 struct ieee80211_network
* network
);
932 int (*handle_probe_response
) (struct net_device
* dev
,
933 struct ieee80211_probe_response
* resp
,
934 struct ieee80211_network
* network
);
935 int (*handle_probe_request
) (struct net_device
* dev
,
936 struct ieee80211_probe_request
* req
,
937 struct ieee80211_rx_stats
* stats
);
938 int (*handle_assoc_response
) (struct net_device
* dev
,
939 struct ieee80211_assoc_response
* resp
,
940 struct ieee80211_network
* network
);
942 /* Typical AP methods */
943 int (*handle_assoc_request
) (struct net_device
* dev
);
944 int (*handle_reassoc_request
) (struct net_device
* dev
,
945 struct ieee80211_reassoc_request
* req
);
947 /* This must be the last item so that it points to the data
948 * allocated beyond this structure by alloc_ieee80211 */
952 #define IEEE_A (1<<0)
953 #define IEEE_B (1<<1)
954 #define IEEE_G (1<<2)
955 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
957 static inline void *ieee80211_priv(struct net_device
*dev
)
959 return ((struct ieee80211_device
*)netdev_priv(dev
))->priv
;
962 static inline int ieee80211_is_empty_essid(const char *essid
, int essid_len
)
964 /* Single white space is for Linksys APs */
965 if (essid_len
== 1 && essid
[0] == ' ')
968 /* Otherwise, if the entire essid is 0, we assume it is hidden */
971 if (essid
[essid_len
] != '\0')
978 static inline int ieee80211_is_valid_mode(struct ieee80211_device
*ieee
,
982 * It is possible for both access points and our device to support
983 * combinations of modes, so as long as there is one valid combination
984 * of ap/device supported modes, then return success
987 if ((mode
& IEEE_A
) &&
988 (ieee
->modulation
& IEEE80211_OFDM_MODULATION
) &&
989 (ieee
->freq_band
& IEEE80211_52GHZ_BAND
))
992 if ((mode
& IEEE_G
) &&
993 (ieee
->modulation
& IEEE80211_OFDM_MODULATION
) &&
994 (ieee
->freq_band
& IEEE80211_24GHZ_BAND
))
997 if ((mode
& IEEE_B
) &&
998 (ieee
->modulation
& IEEE80211_CCK_MODULATION
) &&
999 (ieee
->freq_band
& IEEE80211_24GHZ_BAND
))
1005 static inline int ieee80211_get_hdrlen(u16 fc
)
1007 int hdrlen
= IEEE80211_3ADDR_LEN
;
1008 u16 stype
= WLAN_FC_GET_STYPE(fc
);
1010 switch (WLAN_FC_GET_TYPE(fc
)) {
1011 case IEEE80211_FTYPE_DATA
:
1012 if ((fc
& IEEE80211_FCTL_FROMDS
) && (fc
& IEEE80211_FCTL_TODS
))
1013 hdrlen
= IEEE80211_4ADDR_LEN
;
1014 if (stype
& IEEE80211_STYPE_QOS_DATA
)
1017 case IEEE80211_FTYPE_CTL
:
1018 switch (WLAN_FC_GET_STYPE(fc
)) {
1019 case IEEE80211_STYPE_CTS
:
1020 case IEEE80211_STYPE_ACK
:
1021 hdrlen
= IEEE80211_1ADDR_LEN
;
1024 hdrlen
= IEEE80211_2ADDR_LEN
;
1033 static inline u8
*ieee80211_get_payload(struct ieee80211_hdr
*hdr
)
1035 switch (ieee80211_get_hdrlen(le16_to_cpu(hdr
->frame_ctl
))) {
1036 case IEEE80211_1ADDR_LEN
:
1037 return ((struct ieee80211_hdr_1addr
*)hdr
)->payload
;
1038 case IEEE80211_2ADDR_LEN
:
1039 return ((struct ieee80211_hdr_2addr
*)hdr
)->payload
;
1040 case IEEE80211_3ADDR_LEN
:
1041 return ((struct ieee80211_hdr_3addr
*)hdr
)->payload
;
1042 case IEEE80211_4ADDR_LEN
:
1043 return ((struct ieee80211_hdr_4addr
*)hdr
)->payload
;
1048 static inline int ieee80211_is_ofdm_rate(u8 rate
)
1050 switch (rate
& ~IEEE80211_BASIC_RATE_MASK
) {
1051 case IEEE80211_OFDM_RATE_6MB
:
1052 case IEEE80211_OFDM_RATE_9MB
:
1053 case IEEE80211_OFDM_RATE_12MB
:
1054 case IEEE80211_OFDM_RATE_18MB
:
1055 case IEEE80211_OFDM_RATE_24MB
:
1056 case IEEE80211_OFDM_RATE_36MB
:
1057 case IEEE80211_OFDM_RATE_48MB
:
1058 case IEEE80211_OFDM_RATE_54MB
:
1064 static inline int ieee80211_is_cck_rate(u8 rate
)
1066 switch (rate
& ~IEEE80211_BASIC_RATE_MASK
) {
1067 case IEEE80211_CCK_RATE_1MB
:
1068 case IEEE80211_CCK_RATE_2MB
:
1069 case IEEE80211_CCK_RATE_5MB
:
1070 case IEEE80211_CCK_RATE_11MB
:
1077 extern void free_ieee80211(struct net_device
*dev
);
1078 extern struct net_device
*alloc_ieee80211(int sizeof_priv
);
1080 extern int ieee80211_set_encryption(struct ieee80211_device
*ieee
);
1082 /* ieee80211_tx.c */
1083 extern int ieee80211_xmit(struct sk_buff
*skb
, struct net_device
*dev
);
1084 extern void ieee80211_txb_free(struct ieee80211_txb
*);
1085 extern int ieee80211_tx_frame(struct ieee80211_device
*ieee
,
1086 struct ieee80211_hdr
*frame
, int len
);
1088 /* ieee80211_rx.c */
1089 extern int ieee80211_rx(struct ieee80211_device
*ieee
, struct sk_buff
*skb
,
1090 struct ieee80211_rx_stats
*rx_stats
);
1091 extern void ieee80211_rx_mgt(struct ieee80211_device
*ieee
,
1092 struct ieee80211_hdr_4addr
*header
,
1093 struct ieee80211_rx_stats
*stats
);
1095 /* ieee80211_geo.c */
1096 extern const struct ieee80211_geo
*ieee80211_get_geo(struct ieee80211_device
1098 extern int ieee80211_set_geo(struct ieee80211_device
*ieee
,
1099 const struct ieee80211_geo
*geo
);
1101 extern int ieee80211_is_valid_channel(struct ieee80211_device
*ieee
,
1103 extern int ieee80211_channel_to_index(struct ieee80211_device
*ieee
,
1105 extern u8
ieee80211_freq_to_channel(struct ieee80211_device
*ieee
, u32 freq
);
1107 /* ieee80211_wx.c */
1108 extern int ieee80211_wx_get_scan(struct ieee80211_device
*ieee
,
1109 struct iw_request_info
*info
,
1110 union iwreq_data
*wrqu
, char *key
);
1111 extern int ieee80211_wx_set_encode(struct ieee80211_device
*ieee
,
1112 struct iw_request_info
*info
,
1113 union iwreq_data
*wrqu
, char *key
);
1114 extern int ieee80211_wx_get_encode(struct ieee80211_device
*ieee
,
1115 struct iw_request_info
*info
,
1116 union iwreq_data
*wrqu
, char *key
);
1117 extern int ieee80211_wx_set_encodeext(struct ieee80211_device
*ieee
,
1118 struct iw_request_info
*info
,
1119 union iwreq_data
*wrqu
, char *extra
);
1120 extern int ieee80211_wx_get_encodeext(struct ieee80211_device
*ieee
,
1121 struct iw_request_info
*info
,
1122 union iwreq_data
*wrqu
, char *extra
);
1124 static inline void ieee80211_increment_scans(struct ieee80211_device
*ieee
)
1129 static inline int ieee80211_get_scans(struct ieee80211_device
*ieee
)
1134 #endif /* IEEE80211_H */