1 /* $NetBSD: ieee80211.h,v 1.12 2005/02/26 22:45:09 perry Exp $ */
2 /*-
3 * Copyright (c) 2001 Atsushi Onoe
4 * Copyright (c) 2002-2004 Sam Leffler, Errno Consulting
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * Alternatively, this software may be distributed under the terms of the
19 * GNU General Public License ("GPL") version 2 as published by the Free
20 * Software Foundation.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.5 2004/04/05 17:47:40 sam Exp $
34 */
35 #ifndef _NET80211_IEEE80211_H_
36 #define _NET80211_IEEE80211_H_
37
38 /*
39 * 802.11 protocol definitions.
40 */
41
42 #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */
43 /* is 802.11 address multicast/broadcast? */
44 #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01)
45
46 /* IEEE 802.11 PLCP header */
47 struct ieee80211_plcp_hdr {
48 u_int16_t i_sfd;
49 u_int8_t i_signal;
50 u_int8_t i_service;
51 u_int16_t i_length;
52 u_int16_t i_crc;
53 } __attribute__((__packed__));
54
55 #define IEEE80211_PLCP_SFD 0xF3A0
56
57 /*
58 * generic definitions for IEEE 802.11 frames
59 */
60 struct ieee80211_frame {
61 u_int8_t i_fc[2];
62 u_int8_t i_dur[2];
63 u_int8_t i_addr1[IEEE80211_ADDR_LEN];
64 u_int8_t i_addr2[IEEE80211_ADDR_LEN];
65 u_int8_t i_addr3[IEEE80211_ADDR_LEN];
66 u_int8_t i_seq[2];
67 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
68 /* see below */
69 } __attribute__((__packed__));
70
71 struct ieee80211_qosframe {
72 u_int8_t i_fc[2];
73 u_int8_t i_dur[2];
74 u_int8_t i_addr1[IEEE80211_ADDR_LEN];
75 u_int8_t i_addr2[IEEE80211_ADDR_LEN];
76 u_int8_t i_addr3[IEEE80211_ADDR_LEN];
77 u_int8_t i_seq[2];
78 u_int8_t i_qos[2];
79 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
80 /* see below */
81 } __attribute__((__packed__));
82
83 struct ieee80211_qoscntl {
84 u_int8_t i_qos[2];
85 };
86
87 struct ieee80211_frame_addr4 {
88 u_int8_t i_fc[2];
89 u_int8_t i_dur[2];
90 u_int8_t i_addr1[IEEE80211_ADDR_LEN];
91 u_int8_t i_addr2[IEEE80211_ADDR_LEN];
92 u_int8_t i_addr3[IEEE80211_ADDR_LEN];
93 u_int8_t i_seq[2];
94 u_int8_t i_addr4[IEEE80211_ADDR_LEN];
95 } __attribute__((__packed__));
96
97
98 struct ieee80211_qosframe_addr4 {
99 u_int8_t i_fc[2];
100 u_int8_t i_dur[2];
101 u_int8_t i_addr1[IEEE80211_ADDR_LEN];
102 u_int8_t i_addr2[IEEE80211_ADDR_LEN];
103 u_int8_t i_addr3[IEEE80211_ADDR_LEN];
104 u_int8_t i_seq[2];
105 u_int8_t i_addr4[IEEE80211_ADDR_LEN];
106 u_int8_t i_qos[2];
107 } __attribute__((__packed__));
108
109 #define IEEE80211_FC0_VERSION_MASK 0x03
110 #define IEEE80211_FC0_VERSION_SHIFT 0
111 #define IEEE80211_FC0_VERSION_0 0x00
112 #define IEEE80211_FC0_TYPE_MASK 0x0c
113 #define IEEE80211_FC0_TYPE_SHIFT 2
114 #define IEEE80211_FC0_TYPE_MGT 0x00
115 #define IEEE80211_FC0_TYPE_CTL 0x04
116 #define IEEE80211_FC0_TYPE_DATA 0x08
117
118 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0
119 #define IEEE80211_FC0_SUBTYPE_SHIFT 4
120 /* for TYPE_MGT */
121 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00
122 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10
123 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20
124 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30
125 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40
126 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50
127 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80
128 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90
129 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0
130 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0
131 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0
132 /* for TYPE_CTL */
133 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0
134 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0
135 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0
136 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0
137 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0
138 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0
139 /* for TYPE_DATA (bit combination) */
140 #define IEEE80211_FC0_SUBTYPE_DATA 0x00
141 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10
142 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20
143 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30
144 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40
145 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50
146 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60
147 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70
148 #define IEEE80211_FC0_SUBTYPE_QOS 0x80
149
150 #define IEEE80211_FC1_DIR_MASK 0x03
151 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */
152 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */
153 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */
154 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */
155
156 #define IEEE80211_FC1_MORE_FRAG 0x04
157 #define IEEE80211_FC1_RETRY 0x08
158 #define IEEE80211_FC1_PWR_MGT 0x10
159 #define IEEE80211_FC1_MORE_DATA 0x20
160 #define IEEE80211_FC1_WEP 0x40
161 #define IEEE80211_FC1_ORDER 0x80
162
163 #define IEEE80211_SEQ_FRAG_MASK 0x000f
164 #define IEEE80211_SEQ_FRAG_SHIFT 0
165 #define IEEE80211_SEQ_SEQ_MASK 0xfff0
166 #define IEEE80211_SEQ_SEQ_SHIFT 4
167
168 #define IEEE80211_NWID_LEN 32
169
170 #define IEEE80211_QOS_TXOP 0x00ff
171 /* bit 8 is reserved */
172 #define IEEE80211_QOS_ACKPOLICY 0x0600
173 #define IEEE80211_QOS_ESOP 0x0800
174 #define IEEE80211_QOS_TID 0xf000
175
176 /*
177 * WME/802.11e information element.
178 */
179 struct ieee80211_ie_wme {
180 u_int8_t wme_id; /* IEEE80211_ELEMID_VENDOR */
181 u_int8_t wme_len; /* length in bytes */
182 u_int8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */
183 u_int8_t wme_type; /* OUI type */
184 u_int8_t wme_subtype; /* OUI subtype */
185 u_int8_t wme_version; /* spec revision */
186 u_int8_t wme_info; /* AC info */
187 } __attribute__((__packed__));
188
189 /*
190 * WME/802.11e Tspec Element
191 */
192 struct ieee80211_wme_tspec {
193 u_int8_t ts_id;
194 u_int8_t ts_len;
195 u_int8_t ts_oui[3];
196 u_int8_t ts_oui_type;
197 u_int8_t ts_oui_subtype;
198 u_int8_t ts_version;
199 u_int8_t ts_tsinfo[3];
200 u_int8_t ts_nom_msdu[2];
201 u_int8_t ts_max_msdu[2];
202 u_int8_t ts_min_svc[4];
203 u_int8_t ts_max_svc[4];
204 u_int8_t ts_inactv_intv[4];
205 u_int8_t ts_susp_intv[4];
206 u_int8_t ts_start_svc[4];
207 u_int8_t ts_min_rate[4];
208 u_int8_t ts_mean_rate[4];
209 u_int8_t ts_max_burst[4];
210 u_int8_t ts_min_phy[4];
211 u_int8_t ts_peak_rate[4];
212 u_int8_t ts_delay[4];
213 u_int8_t ts_surplus[2];
214 u_int8_t ts_medium_time[2];
215 } __attribute__((__packed__));
216
217 /*
218 * Management Notification Frame
219 */
220 struct ieee80211_mnf {
221 u_int8_t mnf_category;
222 u_int8_t mnf_action;
223 u_int8_t mnf_dialog;
224 u_int8_t mnf_status;
225 } __attribute__((__packed__));
226 #define MNF_SETUP_REQ 0
227 #define MNF_SETUP_RESP 1
228 #define MNF_TEARDOWN 2
229
230 /*
231 * Control frames.
232 */
233 struct ieee80211_frame_min {
234 u_int8_t i_fc[2];
235 u_int8_t i_dur[2];
236 u_int8_t i_addr1[IEEE80211_ADDR_LEN];
237 u_int8_t i_addr2[IEEE80211_ADDR_LEN];
238 /* FCS */
239 } __attribute__((__packed__));
240
241 struct ieee80211_frame_rts {
242 u_int8_t i_fc[2];
243 u_int8_t i_dur[2];
244 u_int8_t i_ra[IEEE80211_ADDR_LEN];
245 u_int8_t i_ta[IEEE80211_ADDR_LEN];
246 /* FCS */
247 } __attribute__((__packed__));
248
249 struct ieee80211_frame_cts {
250 u_int8_t i_fc[2];
251 u_int8_t i_dur[2];
252 u_int8_t i_ra[IEEE80211_ADDR_LEN];
253 /* FCS */
254 } __attribute__((__packed__));
255
256 struct ieee80211_frame_ack {
257 u_int8_t i_fc[2];
258 u_int8_t i_dur[2];
259 u_int8_t i_ra[IEEE80211_ADDR_LEN];
260 /* FCS */
261 } __attribute__((__packed__));
262
263 struct ieee80211_frame_pspoll {
264 u_int8_t i_fc[2];
265 u_int8_t i_aid[2];
266 u_int8_t i_bssid[IEEE80211_ADDR_LEN];
267 u_int8_t i_ta[IEEE80211_ADDR_LEN];
268 /* FCS */
269 } __attribute__((__packed__));
270
271 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */
272 u_int8_t i_fc[2];
273 u_int8_t i_dur[2]; /* should be zero */
274 u_int8_t i_ra[IEEE80211_ADDR_LEN];
275 u_int8_t i_bssid[IEEE80211_ADDR_LEN];
276 /* FCS */
277 } __attribute__((__packed__));
278
279 /*
280 * BEACON management packets
281 *
282 * octet timestamp[8]
283 * octet beacon interval[2]
284 * octet capability information[2]
285 * information element
286 * octet elemid
287 * octet length
288 * octet information[length]
289 */
290
291 typedef u_int8_t *ieee80211_mgt_beacon_t;
292
293 #define IEEE80211_BEACON_INTERVAL(beacon) \
294 ((beacon)[8] | ((beacon)[9] << 8))
295 #define IEEE80211_BEACON_CAPABILITY(beacon) \
296 ((beacon)[10] | ((beacon)[11] << 8))
297
298 #define IEEE80211_CAPINFO_ESS 0x0001
299 #define IEEE80211_CAPINFO_IBSS 0x0002
300 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004
301 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008
302 #define IEEE80211_CAPINFO_PRIVACY 0x0010
303 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020
304 #define IEEE80211_CAPINFO_PBCC 0x0040
305 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080
306 /* bits 8-9 are reserved */
307 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400
308 #define IEEE80211_CAPINFO_RSN 0x0800
309 /* bit 12 is reserved */
310 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000
311 /* bits 14-15 are reserved */
312
313 /*
314 * 802.11i/WPA information element (maximally sized).
315 */
316 struct ieee80211_ie_wpa {
317 u_int8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */
318 u_int8_t wpa_len; /* length in bytes */
319 u_int8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */
320 u_int8_t wpa_type; /* OUI type */
321 u_int16_t wpa_version; /* spec revision */
322 u_int32_t wpa_mcipher[1]; /* multicast/group key cipher */
323 u_int16_t wpa_uciphercnt; /* # pairwise key ciphers */
324 u_int32_t wpa_uciphers[8];/* ciphers */
325 u_int16_t wpa_authselcnt; /* authentication selector cnt*/
326 u_int32_t wpa_authsels[8];/* selectors */
327 u_int16_t wpa_caps; /* 802.11i capabilities */
328 u_int16_t wpa_pmkidcnt; /* 802.11i pmkid count */
329 u_int16_t wpa_pmkids[8]; /* 802.11i pmkids */
330 } __attribute__((__packed__));
331
332 /*
333 * Management information element payloads
334 */
335 union ieee80211_information {
336 char ssid[IEEE80211_NWID_LEN+1];
337 struct rates {
338 u_int8_t *p;
339 } rates;
340 struct fh {
341 u_int16_t dwell;
342 u_int8_t set;
343 u_int8_t pattern;
344 u_int8_t index;
345 } fh;
346 struct ds {
347 u_int8_t channel;
348 } ds;
349 struct cf {
350 u_int8_t count;
351 u_int8_t period;
352 u_int8_t maxdur[2];
353 u_int8_t dur[2];
354 } cf;
355 struct tim {
356 u_int8_t count;
357 u_int8_t period;
358 u_int8_t bitctl;
359 /* u_int8_t pvt[251]; The driver needs to use this. */
360 } tim;
361 struct ibss {
362 u_int16_t atim;
363 } ibss;
364 struct challenge {
365 u_int8_t *p;
366 u_int8_t len;
367 } challenge;
368 struct erp {
369 u_int8_t flags;
370 } erp;
371 struct country {
372 u_int8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */
373 struct {
374 u_int8_t schan; /* starting channel */
375 u_int8_t nchan; /* number channels */
376 u_int8_t maxtxpwr;
377 } band[4]; /* up to 4 sub bands */
378 } country;
379 struct ath {
380 u_int8_t flags;
381 } ath;
382 };
383
384 enum {
385 IEEE80211_ELEMID_SSID = 0,
386 IEEE80211_ELEMID_RATES = 1,
387 IEEE80211_ELEMID_FHPARMS = 2,
388 IEEE80211_ELEMID_DSPARMS = 3,
389 IEEE80211_ELEMID_CFPARMS = 4,
390 IEEE80211_ELEMID_TIM = 5,
391 IEEE80211_ELEMID_IBSSPARMS = 6,
392 IEEE80211_ELEMID_COUNTRY = 7,
393 IEEE80211_ELEMID_CHALLENGE = 16,
394 /* 17-31 reserved for challenge text extension */
395 IEEE80211_ELEMID_ERP = 42,
396 IEEE80211_ELEMID_RSN = 48,
397 IEEE80211_ELEMID_XRATES = 50,
398 IEEE80211_ELEMID_TPC = 150,
399 IEEE80211_ELEMID_CCKM = 156,
400 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */
401 };
402
403 #define IEEE80211_CHALLENGE_LEN 128
404
405 #define IEEE80211_RATE_BASIC 0x80
406 #define IEEE80211_RATE_VAL 0x7f
407
408 /* EPR information element flags */
409 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01
410 #define IEEE80211_ERP_USE_PROTECTION 0x02
411 #define IEEE80211_ERP_LONG_PREAMBLE 0x04
412
413 /* Atheros private advanced capabilities info */
414 #define ATHEROS_CAP_TURBO_PRIME 0x01
415 #define ATHEROS_CAP_COMPRESSION 0x02
416 #define ATHEROS_CAP_FAST_FRAME 0x04
417 /* bits 3-6 reserved */
418 #define ATHEROS_CAP_BOOST 0x80
419
420 #define ATH_OUI 0x7f0300 /* Atheros OUI */
421 #define ATH_OUI_TYPE 0x01
422 #define ATH_OUI_VERSION 0x01
423
424 #define WPA_OUI 0xf25000
425 #define WPA_OUI_TYPE 0x01
426 #define WPA_VERSION 1 /* current supported version */
427
428 #define WPA_CSE_NULL 0x00
429 #define WPA_CSE_WEP40 0x01
430 #define WPA_CSE_TKIP 0x02
431 #define WPA_CSE_CCMP 0x04
432 #define WPA_CSE_WEP104 0x05
433
434 #define WPA_ASE_NONE 0x00
435 #define WPA_ASE_8021X_UNSPEC 0x01
436 #define WPA_ASE_8021X_PSK 0x02
437
438 #define RSN_OUI 0xac0f00
439 #define RSN_VERSION 1 /* current supported version */
440
441 #define RSN_CSE_NULL 0x00
442 #define RSN_CSE_WEP40 0x01
443 #define RSN_CSE_TKIP 0x02
444 #define RSN_CSE_WRAP 0x03
445 #define RSN_CSE_CCMP 0x04
446 #define RSN_CSE_WEP104 0x05
447
448 #define RSN_ASE_NONE 0x00
449 #define RSN_ASE_8021X_UNSPEC 0x01
450 #define RSN_ASE_8021X_PSK 0x02
451
452 #define WME_OUI 0xf25000
453 #define WME_OUI_TYPE 0x02
454 #define WME_VERSION 1
455
456 /* WME stream classes */
457 #define WME_AC_BE 0 /* best effort */
458 #define WME_AC_BK 1 /* background */
459 #define WME_AC_VI 2 /* video */
460 #define WME_AC_VO 3 /* voice */
461
462 /*
463 * AUTH management packets
464 *
465 * octet algo[2]
466 * octet seq[2]
467 * octet status[2]
468 * octet chal.id
469 * octet chal.length
470 * octet chal.text[253]
471 */
472
473 typedef u_int8_t *ieee80211_mgt_auth_t;
474
475 #define IEEE80211_AUTH_ALGORITHM(auth) \
476 ((auth)[0] | ((auth)[1] << 8))
477 #define IEEE80211_AUTH_TRANSACTION(auth) \
478 ((auth)[2] | ((auth)[3] << 8))
479 #define IEEE80211_AUTH_STATUS(auth) \
480 ((auth)[4] | ((auth)[5] << 8))
481
482 #define IEEE80211_AUTH_ALG_OPEN 0x0000
483 #define IEEE80211_AUTH_ALG_SHARED 0x0001
484 #define IEEE80211_AUTH_ALG_LEAP 0x0080
485
486 enum {
487 IEEE80211_AUTH_OPEN_REQUEST = 1,
488 IEEE80211_AUTH_OPEN_RESPONSE = 2,
489 };
490
491 enum {
492 IEEE80211_AUTH_SHARED_REQUEST = 1,
493 IEEE80211_AUTH_SHARED_CHALLENGE = 2,
494 IEEE80211_AUTH_SHARED_RESPONSE = 3,
495 IEEE80211_AUTH_SHARED_PASS = 4,
496 };
497
498 /*
499 * Reason codes
500 *
501 * Unlisted codes are reserved
502 */
503
504 enum {
505 IEEE80211_REASON_UNSPECIFIED = 1,
506 IEEE80211_REASON_AUTH_EXPIRE = 2,
507 IEEE80211_REASON_AUTH_LEAVE = 3,
508 IEEE80211_REASON_ASSOC_EXPIRE = 4,
509 IEEE80211_REASON_ASSOC_TOOMANY = 5,
510 IEEE80211_REASON_NOT_AUTHED = 6,
511 IEEE80211_REASON_NOT_ASSOCED = 7,
512 IEEE80211_REASON_ASSOC_LEAVE = 8,
513 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9,
514
515 IEEE80211_REASON_RSN_REQUIRED = 11,
516 IEEE80211_REASON_RSN_INCONSISTENT = 12,
517 IEEE80211_REASON_IE_INVALID = 13,
518 IEEE80211_REASON_MIC_FAILURE = 14,
519
520 IEEE80211_STATUS_SUCCESS = 0,
521 IEEE80211_STATUS_UNSPECIFIED = 1,
522 IEEE80211_STATUS_CAPINFO = 10,
523 IEEE80211_STATUS_NOT_ASSOCED = 11,
524 IEEE80211_STATUS_OTHER = 12,
525 IEEE80211_STATUS_ALG = 13,
526 IEEE80211_STATUS_SEQUENCE = 14,
527 IEEE80211_STATUS_CHALLENGE = 15,
528 IEEE80211_STATUS_TIMEOUT = 16,
529 IEEE80211_STATUS_TOOMANY = 17,
530 IEEE80211_STATUS_BASIC_RATE = 18,
531 IEEE80211_STATUS_SP_REQUIRED = 19,
532 IEEE80211_STATUS_PBCC_REQUIRED = 20,
533 IEEE80211_STATUS_CA_REQUIRED = 21,
534 IEEE80211_STATUS_TOO_MANY_STATIONS = 22,
535 IEEE80211_STATUS_RATES = 23,
536 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25,
537 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26,
538 };
539
540 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */
541 #define IEEE80211_WEP_NKID 4 /* number of key ids */
542
543 /* WEP header constants */
544 #define IEEE80211_WEP_IVLEN 3 /* 24bit */
545 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */
546 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */
547 #define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \
548 IEEE80211_WEP_KIDLEN + \
549 IEEE80211_WEP_CRCLEN)
550 /*
551 * 802.11i defines an extended IV for use with non-WEP ciphers.
552 * When the EXTIV bit is set in the key id byte an additional
553 * 4 bytes immediately follow the IV for TKIP. For CCMP the
554 * EXTIV bit is likewise set but the 8 bytes represent the
555 * CCMP header rather than IV+extended-IV.
556 */
557 #define IEEE80211_WEP_EXTIV 0x20
558 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */
559 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */
560
561 #define IEEE80211_CRC_LEN 4
562
563 /*
564 * Maximum acceptable MTU is:
565 * IEEE80211_MAX_LEN - WEP overhead - CRC -
566 * QoS overhead - RSN/WPA overhead
567 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default
568 * mtu is Ethernet-compatible; it's set by ether_ifattach.
569 */
570 #define IEEE80211_MTU_MAX 2290
571 #define IEEE80211_MTU_MIN 32
572
573 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \
574 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
575 #define IEEE80211_ACK_LEN \
576 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
577 #define IEEE80211_MIN_LEN \
578 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
579
580 /*
581 * The 802.11 spec says at most 2007 stations may be
582 * associated at once. For most AP's this is way more
583 * than is feasible so we use a default of 128. This
584 * number may be overridden by the driver and/or by
585 * user configuration.
586 */
587 #define IEEE80211_AID_MAX 2007
588 #define IEEE80211_AID_DEF 128
589
590 #define IEEE80211_AID(b) ((b) &~ 0xc000)
591 #define IEEE80211_AID_SET(b, w) \
592 ((w)[IEEE80211_AID(b) / 32] |= (1 << (IEEE80211_AID(b) % 32)))
593 #define IEEE80211_AID_CLR(b, w) \
594 ((w)[IEEE80211_AID(b) / 32] &= ~(1 << (IEEE80211_AID(b) % 32)))
595 #define IEEE80211_AID_ISSET(b, w) \
596 ((w)[IEEE80211_AID(b) / 32] & (1 << (IEEE80211_AID(b) % 32)))
597
598 /*
599 * RTS frame length parameters. The default is specified in
600 * the 802.11 spec. The max may be wrong for jumbo frames.
601 */
602 #define IEEE80211_RTS_DEFAULT 512
603 #define IEEE80211_RTS_MIN 1
604 #define IEEE80211_RTS_MAX IEEE80211_MAX_LEN
605
606 /*
607 * 802.11 frame duration definitions.
608 */
609
610 struct ieee80211_duration {
611 uint16_t d_rts_dur;
612 uint16_t d_data_dur;
613 uint16_t d_plcp_len;
614 uint8_t d_residue; /* unused octets in time slot */
615 };
616
617 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */
618 #define IEEE80211_DUR_TU 1024
619
620 /* IEEE 802.11b durations for DSSS PHY in microseconds */
621 #define IEEE80211_DUR_DS_LONG_PREAMBLE 144
622 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
623
624 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48
625 #define IEEE80211_DUR_DS_FAST_PLCPHDR 24
626 #define IEEE80211_DUR_DS_SLOW_ACK 112
627 #define IEEE80211_DUR_DS_FAST_ACK 56
628 #define IEEE80211_DUR_DS_SLOW_CTS 112
629 #define IEEE80211_DUR_DS_FAST_CTS 56
630
631 #define IEEE80211_DUR_DS_SLOT 20
632 #define IEEE80211_DUR_DS_SIFS 10
633 #define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
634 #define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \
635 2 * IEEE80211_DUR_DS_SLOT)
636 #define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \
637 IEEE80211_DUR_DS_SLOW_ACK + \
638 IEEE80211_DUR_DS_LONG_PREAMBLE + \
639 IEEE80211_DUR_DS_SLOW_PLCPHDR + \
640 IEEE80211_DUR_DIFS)
641
642 enum {
643 IEEE80211_AUTH_NONE = 0,
644 IEEE80211_AUTH_OPEN = 1, /* open */
645 IEEE80211_AUTH_SHARED = 2, /* shared-key */
646 IEEE80211_AUTH_8021X = 3, /* 802.1x */
647 IEEE80211_AUTH_AUTO = 4, /* auto-select/accept */
648 /* NB: these are used only for ioctls */
649 IEEE80211_AUTH_WPA = 5, /* WPA w/ 802.1x */
650 IEEE80211_AUTH_WPA_PSK = 6, /* WPA w/ preshared key */
651 IEEE80211_AUTH_WPA2 = 7, /* WPA2 w/ 802.1x */
652 IEEE80211_AUTH_WPA2_PSK = 8, /* WPA2 w/ preshared key */
653 };
654
655 #endif /* _NET80211_IEEE80211_H_ */
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