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.
367 * For ieee80211_rx_mgt, you need to set at least the 'len' parameter.
369 struct ieee80211_rx_stats {
374 u16 rate; /* in 100 kbps */
382 /* IEEE 802.11 requires that STA supports concurrent reception of at least
383 * three fragmented frames. This define can be increased to support more
384 * concurrent frames, but it should be noted that each entry can consume about
385 * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
386 #define IEEE80211_FRAG_CACHE_LEN 4
388 struct ieee80211_frag_entry {
389 unsigned long first_frag_time;
391 unsigned int last_frag;
393 u8 src_addr[ETH_ALEN];
394 u8 dst_addr[ETH_ALEN];
397 struct ieee80211_stats {
398 unsigned int tx_unicast_frames;
399 unsigned int tx_multicast_frames;
400 unsigned int tx_fragments;
401 unsigned int tx_unicast_octets;
402 unsigned int tx_multicast_octets;
403 unsigned int tx_deferred_transmissions;
404 unsigned int tx_single_retry_frames;
405 unsigned int tx_multiple_retry_frames;
406 unsigned int tx_retry_limit_exceeded;
407 unsigned int tx_discards;
408 unsigned int rx_unicast_frames;
409 unsigned int rx_multicast_frames;
410 unsigned int rx_fragments;
411 unsigned int rx_unicast_octets;
412 unsigned int rx_multicast_octets;
413 unsigned int rx_fcs_errors;
414 unsigned int rx_discards_no_buffer;
415 unsigned int tx_discards_wrong_sa;
416 unsigned int rx_discards_undecryptable;
417 unsigned int rx_message_in_msg_fragments;
418 unsigned int rx_message_in_bad_msg_fragments;
421 struct ieee80211_device;
423 #include "ieee80211_crypt.h"
425 #define SEC_KEY_1 (1<<0)
426 #define SEC_KEY_2 (1<<1)
427 #define SEC_KEY_3 (1<<2)
428 #define SEC_KEY_4 (1<<3)
429 #define SEC_ACTIVE_KEY (1<<4)
430 #define SEC_AUTH_MODE (1<<5)
431 #define SEC_UNICAST_GROUP (1<<6)
432 #define SEC_LEVEL (1<<7)
433 #define SEC_ENABLED (1<<8)
434 #define SEC_ENCRYPT (1<<9)
436 #define SEC_LEVEL_0 0 /* None */
437 #define SEC_LEVEL_1 1 /* WEP 40 and 104 bit */
438 #define SEC_LEVEL_2 2 /* Level 1 + TKIP */
439 #define SEC_LEVEL_2_CKIP 3 /* Level 1 + CKIP */
440 #define SEC_LEVEL_3 4 /* Level 2 + CCMP */
442 #define SEC_ALG_NONE 0
443 #define SEC_ALG_WEP 1
444 #define SEC_ALG_TKIP 2
445 #define SEC_ALG_CCMP 3
448 #define WEP_KEY_LEN 13
449 #define SCM_KEY_LEN 32
450 #define SCM_TEMPORAL_KEY_LENGTH 16
452 struct ieee80211_security {
455 auth_mode:2, auth_algo:4, unicast_uses_group:1, encrypt:1;
456 u8 encode_alg[WEP_KEYS];
457 u8 key_sizes[WEP_KEYS];
458 u8 keys[WEP_KEYS][SCM_KEY_LEN];
461 } __attribute__ ((packed));
465 802.11 data frame from AP
467 ,-------------------------------------------------------------------.
468 Bytes | 2 | 2 | 6 | 6 | 6 | 2 | 0..2312 | 4 |
469 |------|------|---------|---------|---------|------|---------|------|
470 Desc. | ctrl | dura | DA/RA | TA | SA | Sequ | frame | fcs |
471 | | tion | (BSSID) | | | ence | data | |
472 `-------------------------------------------------------------------'
478 #define BEACON_PROBE_SSID_ID_POSITION 12
480 /* Management Frame Information Element Types */
481 enum ieee80211_mfie {
484 MFIE_TYPE_FH_SET = 2,
485 MFIE_TYPE_DS_SET = 3,
486 MFIE_TYPE_CF_SET = 4,
488 MFIE_TYPE_IBSS_SET = 6,
489 MFIE_TYPE_COUNTRY = 7,
490 MFIE_TYPE_HOP_PARAMS = 8,
491 MFIE_TYPE_HOP_TABLE = 9,
492 MFIE_TYPE_REQUEST = 10,
493 MFIE_TYPE_CHALLENGE = 16,
494 MFIE_TYPE_POWER_CONSTRAINT = 32,
495 MFIE_TYPE_POWER_CAPABILITY = 33,
496 MFIE_TYPE_TPC_REQUEST = 34,
497 MFIE_TYPE_TPC_REPORT = 35,
498 MFIE_TYPE_SUPP_CHANNELS = 36,
500 MFIE_TYPE_MEASURE_REQUEST = 38,
501 MFIE_TYPE_MEASURE_REPORT = 39,
502 MFIE_TYPE_QUIET = 40,
503 MFIE_TYPE_IBSS_DFS = 41,
504 MFIE_TYPE_ERP_INFO = 42,
506 MFIE_TYPE_RATES_EX = 50,
507 MFIE_TYPE_GENERIC = 221,
508 MFIE_TYPE_QOS_PARAMETER = 222,
511 /* Minimal header; can be used for passing 802.11 frames with sufficient
512 * information to determine what type of underlying data type is actually
513 * stored in the data. */
514 struct ieee80211_hdr {
518 } __attribute__ ((packed));
520 struct ieee80211_hdr_1addr {
525 } __attribute__ ((packed));
527 struct ieee80211_hdr_2addr {
533 } __attribute__ ((packed));
535 struct ieee80211_hdr_3addr {
543 } __attribute__ ((packed));
545 struct ieee80211_hdr_4addr {
554 } __attribute__ ((packed));
556 struct ieee80211_hdr_3addrqos {
565 } __attribute__ ((packed));
567 struct ieee80211_hdr_4addrqos {
577 } __attribute__ ((packed));
579 struct ieee80211_info_element {
583 } __attribute__ ((packed));
586 * These are the data types that can make up management packets
592 u8 current_ap[ETH_ALEN];
595 u16 association_id:14, reserved:2;
596 } __attribute__ ((packed));
602 struct ieee80211_auth {
603 struct ieee80211_hdr_3addr header;
608 struct ieee80211_info_element info_element[0];
609 } __attribute__ ((packed));
611 struct ieee80211_disassoc {
612 struct ieee80211_hdr_3addr header;
614 } __attribute__ ((packed));
616 /* Alias deauth for disassoc */
617 #define ieee80211_deauth ieee80211_disassoc
619 struct ieee80211_probe_request {
620 struct ieee80211_hdr_3addr header;
621 /* SSID, supported rates */
622 struct ieee80211_info_element info_element[0];
623 } __attribute__ ((packed));
625 struct ieee80211_probe_response {
626 struct ieee80211_hdr_3addr header;
628 __le16 beacon_interval;
630 /* SSID, supported rates, FH params, DS params,
631 * CF params, IBSS params, TIM (if beacon), RSN */
632 struct ieee80211_info_element info_element[0];
633 } __attribute__ ((packed));
635 /* Alias beacon for probe_response */
636 #define ieee80211_beacon ieee80211_probe_response
638 struct ieee80211_assoc_request {
639 struct ieee80211_hdr_3addr header;
641 __le16 listen_interval;
642 /* SSID, supported rates, RSN */
643 struct ieee80211_info_element info_element[0];
644 } __attribute__ ((packed));
646 struct ieee80211_reassoc_request {
647 struct ieee80211_hdr_3addr header;
649 __le16 listen_interval;
650 u8 current_ap[ETH_ALEN];
651 struct ieee80211_info_element info_element[0];
652 } __attribute__ ((packed));
654 struct ieee80211_assoc_response {
655 struct ieee80211_hdr_3addr header;
659 /* supported rates */
660 struct ieee80211_info_element info_element[0];
661 } __attribute__ ((packed));
663 struct ieee80211_txb {
670 struct sk_buff *fragments[0];
673 /* SWEEP TABLE ENTRIES NUMBER */
674 #define MAX_SWEEP_TAB_ENTRIES 42
675 #define MAX_SWEEP_TAB_ENTRIES_PER_PACKET 7
676 /* MAX_RATES_LENGTH needs to be 12. The spec says 8, and many APs
677 * only use 8, and then use extended rates for the remaining supported
678 * rates. Other APs, however, stick all of their supported rates on the
679 * main rates information element... */
680 #define MAX_RATES_LENGTH ((u8)12)
681 #define MAX_RATES_EX_LENGTH ((u8)16)
682 #define MAX_NETWORK_COUNT 128
684 #define CRC_LENGTH 4U
686 #define MAX_WPA_IE_LEN 64
688 #define NETWORK_EMPTY_ESSID (1<<0)
689 #define NETWORK_HAS_OFDM (1<<1)
690 #define NETWORK_HAS_CCK (1<<2)
693 #define NETWORK_HAS_QOS_PARAMETERS (1<<3)
694 #define NETWORK_HAS_QOS_INFORMATION (1<<4)
695 #define NETWORK_HAS_QOS_MASK (NETWORK_HAS_QOS_PARAMETERS | NETWORK_HAS_QOS_INFORMATION)
697 #define QOS_QUEUE_NUM 4
698 #define QOS_OUI_LEN 3
699 #define QOS_OUI_TYPE 2
700 #define QOS_ELEMENT_ID 221
701 #define QOS_OUI_INFO_SUB_TYPE 0
702 #define QOS_OUI_PARAM_SUB_TYPE 1
703 #define QOS_VERSION_1 1
704 #define QOS_AIFSN_MIN_VALUE 2
706 struct ieee80211_qos_information_element {
714 } __attribute__ ((packed));
716 struct ieee80211_qos_ac_parameter {
720 } __attribute__ ((packed));
722 struct ieee80211_qos_parameter_info {
723 struct ieee80211_qos_information_element info_element;
725 struct ieee80211_qos_ac_parameter ac_params_record[QOS_QUEUE_NUM];
726 } __attribute__ ((packed));
728 struct ieee80211_qos_parameters {
729 __le16 cw_min[QOS_QUEUE_NUM];
730 __le16 cw_max[QOS_QUEUE_NUM];
731 u8 aifs[QOS_QUEUE_NUM];
732 u8 flag[QOS_QUEUE_NUM];
733 __le16 tx_op_limit[QOS_QUEUE_NUM];
734 } __attribute__ ((packed));
736 struct ieee80211_qos_data {
737 struct ieee80211_qos_parameters parameters;
744 struct ieee80211_tim_parameters {
747 } __attribute__ ((packed));
749 /*******************************************************/
751 struct ieee80211_network {
752 /* These entries are used to identify a unique network */
755 /* Ensure null-terminated for any debug msgs */
756 u8 ssid[IW_ESSID_MAX_SIZE + 1];
759 struct ieee80211_qos_data qos_data;
761 /* These are network statistics */
762 struct ieee80211_rx_stats stats;
764 u8 rates[MAX_RATES_LENGTH];
766 u8 rates_ex[MAX_RATES_EX_LENGTH];
768 unsigned long last_scanned;
777 u8 wpa_ie[MAX_WPA_IE_LEN];
779 u8 rsn_ie[MAX_WPA_IE_LEN];
781 struct ieee80211_tim_parameters tim;
782 struct list_head list;
785 enum ieee80211_state {
786 IEEE80211_UNINITIALIZED = 0,
787 IEEE80211_INITIALIZED,
788 IEEE80211_ASSOCIATING,
789 IEEE80211_ASSOCIATED,
790 IEEE80211_AUTHENTICATING,
791 IEEE80211_AUTHENTICATED,
795 #define DEFAULT_MAX_SCAN_AGE (15 * HZ)
796 #define DEFAULT_FTS 2346
798 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
799 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
800 #define CFG_IEEE80211_RTS (1<<2)
802 #define IEEE80211_24GHZ_MIN_CHANNEL 1
803 #define IEEE80211_24GHZ_MAX_CHANNEL 14
804 #define IEEE80211_24GHZ_CHANNELS 14
806 #define IEEE80211_52GHZ_MIN_CHANNEL 36
807 #define IEEE80211_52GHZ_MAX_CHANNEL 165
808 #define IEEE80211_52GHZ_CHANNELS 32
811 IEEE80211_CH_PASSIVE_ONLY = (1 << 0),
812 IEEE80211_CH_B_ONLY = (1 << 2),
813 IEEE80211_CH_NO_IBSS = (1 << 3),
814 IEEE80211_CH_UNIFORM_SPREADING = (1 << 4),
815 IEEE80211_CH_RADAR_DETECT = (1 << 5),
816 IEEE80211_CH_INVALID = (1 << 6),
819 struct ieee80211_channel {
826 struct ieee80211_geo {
830 struct ieee80211_channel bg[IEEE80211_24GHZ_CHANNELS];
831 struct ieee80211_channel a[IEEE80211_52GHZ_CHANNELS];
834 struct ieee80211_device {
835 struct net_device *dev;
836 struct ieee80211_security sec;
838 /* Bookkeeping structures */
839 struct net_device_stats stats;
840 struct ieee80211_stats ieee_stats;
842 struct ieee80211_geo geo;
844 /* Probe / Beacon management */
845 struct list_head network_free_list;
846 struct list_head network_list;
847 struct ieee80211_network *networks;
851 int iw_mode; /* operating mode (IW_MODE_*) */
852 struct iw_spy_data spy_data; /* iwspy support */
856 int tx_headroom; /* Set to size of any additional room needed at front
857 * of allocated Tx SKBs */
860 /* WEP and other encryption related settings at the device level */
861 int open_wep; /* Set to 1 to allow unencrypted frames */
863 int reset_on_keychange; /* Set to 1 if the HW needs to be reset on
866 /* If the host performs {en,de}cryption, then set to 1 */
868 int host_encrypt_msdu;
870 /* host performs multicast decryption */
875 int ieee802_1x; /* is IEEE 802.1X used */
879 int drop_unencrypted;
884 struct list_head crypt_deinit_list;
885 struct ieee80211_crypt_data *crypt[WEP_KEYS];
886 int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
887 struct timer_list crypt_deinit_timer;
890 int bcrx_sta_key; /* use individual keys to override default keys even
891 * with RX of broad/multicast frames */
893 /* Fragmentation structures */
894 struct ieee80211_frag_entry frag_cache[IEEE80211_FRAG_CACHE_LEN];
895 unsigned int frag_next_idx;
896 u16 fts; /* Fragmentation Threshold */
897 u16 rts; /* RTS threshold */
899 /* Association info */
902 enum ieee80211_state state;
904 int mode; /* A, B, G */
905 int modulation; /* CCK, OFDM */
906 int freq_band; /* 2.4Ghz, 5.2Ghz, Mixed */
907 int abg_true; /* ABG flag */
912 /* Callback functions */
913 void (*set_security) (struct net_device * dev,
914 struct ieee80211_security * sec);
915 int (*hard_start_xmit) (struct ieee80211_txb * txb,
916 struct net_device * dev, int pri);
917 int (*reset_port) (struct net_device * dev);
918 int (*is_queue_full) (struct net_device * dev, int pri);
920 int (*handle_management) (struct net_device * dev,
921 struct ieee80211_network * network, u16 type);
923 /* Typical STA methods */
924 int (*handle_auth) (struct net_device * dev,
925 struct ieee80211_auth * auth);
926 int (*handle_deauth) (struct net_device * dev,
927 struct ieee80211_auth * auth);
928 int (*handle_disassoc) (struct net_device * dev,
929 struct ieee80211_disassoc * assoc);
930 int (*handle_beacon) (struct net_device * dev,
931 struct ieee80211_beacon * beacon,
932 struct ieee80211_network * network);
933 int (*handle_probe_response) (struct net_device * dev,
934 struct ieee80211_probe_response * resp,
935 struct ieee80211_network * network);
936 int (*handle_probe_request) (struct net_device * dev,
937 struct ieee80211_probe_request * req,
938 struct ieee80211_rx_stats * stats);
939 int (*handle_assoc_response) (struct net_device * dev,
940 struct ieee80211_assoc_response * resp,
941 struct ieee80211_network * network);
943 /* Typical AP methods */
944 int (*handle_assoc_request) (struct net_device * dev);
945 int (*handle_reassoc_request) (struct net_device * dev,
946 struct ieee80211_reassoc_request * req);
948 /* This must be the last item so that it points to the data
949 * allocated beyond this structure by alloc_ieee80211 */
953 #define IEEE_A (1<<0)
954 #define IEEE_B (1<<1)
955 #define IEEE_G (1<<2)
956 #define IEEE_MODE_MASK (IEEE_A|IEEE_B|IEEE_G)
958 static inline void *ieee80211_priv(struct net_device *dev)
960 return ((struct ieee80211_device *)netdev_priv(dev))->priv;
963 static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
965 /* Single white space is for Linksys APs */
966 if (essid_len == 1 && essid[0] == ' ')
969 /* Otherwise, if the entire essid is 0, we assume it is hidden */
972 if (essid[essid_len] != '\0')
979 static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee,
983 * It is possible for both access points and our device to support
984 * combinations of modes, so as long as there is one valid combination
985 * of ap/device supported modes, then return success
988 if ((mode & IEEE_A) &&
989 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
990 (ieee->freq_band & IEEE80211_52GHZ_BAND))
993 if ((mode & IEEE_G) &&
994 (ieee->modulation & IEEE80211_OFDM_MODULATION) &&
995 (ieee->freq_band & IEEE80211_24GHZ_BAND))
998 if ((mode & IEEE_B) &&
999 (ieee->modulation & IEEE80211_CCK_MODULATION) &&
1000 (ieee->freq_band & IEEE80211_24GHZ_BAND))
1006 static inline int ieee80211_get_hdrlen(u16 fc)
1008 int hdrlen = IEEE80211_3ADDR_LEN;
1009 u16 stype = WLAN_FC_GET_STYPE(fc);
1011 switch (WLAN_FC_GET_TYPE(fc)) {
1012 case IEEE80211_FTYPE_DATA:
1013 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
1014 hdrlen = IEEE80211_4ADDR_LEN;
1015 if (stype & IEEE80211_STYPE_QOS_DATA)
1018 case IEEE80211_FTYPE_CTL:
1019 switch (WLAN_FC_GET_STYPE(fc)) {
1020 case IEEE80211_STYPE_CTS:
1021 case IEEE80211_STYPE_ACK:
1022 hdrlen = IEEE80211_1ADDR_LEN;
1025 hdrlen = IEEE80211_2ADDR_LEN;
1034 static inline u8 *ieee80211_get_payload(struct ieee80211_hdr *hdr)
1036 switch (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_ctl))) {
1037 case IEEE80211_1ADDR_LEN:
1038 return ((struct ieee80211_hdr_1addr *)hdr)->payload;
1039 case IEEE80211_2ADDR_LEN:
1040 return ((struct ieee80211_hdr_2addr *)hdr)->payload;
1041 case IEEE80211_3ADDR_LEN:
1042 return ((struct ieee80211_hdr_3addr *)hdr)->payload;
1043 case IEEE80211_4ADDR_LEN:
1044 return ((struct ieee80211_hdr_4addr *)hdr)->payload;
1049 static inline int ieee80211_is_ofdm_rate(u8 rate)
1051 switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1052 case IEEE80211_OFDM_RATE_6MB:
1053 case IEEE80211_OFDM_RATE_9MB:
1054 case IEEE80211_OFDM_RATE_12MB:
1055 case IEEE80211_OFDM_RATE_18MB:
1056 case IEEE80211_OFDM_RATE_24MB:
1057 case IEEE80211_OFDM_RATE_36MB:
1058 case IEEE80211_OFDM_RATE_48MB:
1059 case IEEE80211_OFDM_RATE_54MB:
1065 static inline int ieee80211_is_cck_rate(u8 rate)
1067 switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
1068 case IEEE80211_CCK_RATE_1MB:
1069 case IEEE80211_CCK_RATE_2MB:
1070 case IEEE80211_CCK_RATE_5MB:
1071 case IEEE80211_CCK_RATE_11MB:
1078 extern void free_ieee80211(struct net_device *dev);
1079 extern struct net_device *alloc_ieee80211(int sizeof_priv);
1081 extern int ieee80211_set_encryption(struct ieee80211_device *ieee);
1083 /* ieee80211_tx.c */
1084 extern int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev);
1085 extern void ieee80211_txb_free(struct ieee80211_txb *);
1086 extern int ieee80211_tx_frame(struct ieee80211_device *ieee,
1087 struct ieee80211_hdr *frame, int len);
1089 /* ieee80211_rx.c */
1090 extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
1091 struct ieee80211_rx_stats *rx_stats);
1092 /* make sure to set stats->len */
1093 extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
1094 struct ieee80211_hdr_4addr *header,
1095 struct ieee80211_rx_stats *stats);
1097 /* ieee80211_geo.c */
1098 extern const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device
1100 extern int ieee80211_set_geo(struct ieee80211_device *ieee,
1101 const struct ieee80211_geo *geo);
1103 extern int ieee80211_is_valid_channel(struct ieee80211_device *ieee,
1105 extern int ieee80211_channel_to_index(struct ieee80211_device *ieee,
1107 extern u8 ieee80211_freq_to_channel(struct ieee80211_device *ieee, u32 freq);
1109 /* ieee80211_wx.c */
1110 extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
1111 struct iw_request_info *info,
1112 union iwreq_data *wrqu, char *key);
1113 extern int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
1114 struct iw_request_info *info,
1115 union iwreq_data *wrqu, char *key);
1116 extern int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
1117 struct iw_request_info *info,
1118 union iwreq_data *wrqu, char *key);
1119 extern int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
1120 struct iw_request_info *info,
1121 union iwreq_data *wrqu, char *extra);
1122 extern int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
1123 struct iw_request_info *info,
1124 union iwreq_data *wrqu, char *extra);
1126 static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
1131 static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
1136 #endif /* IEEE80211_H */