2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * Alternatively, this software may be distributed under the terms of the
18 * GNU General Public License ("GPL") version 2 as published by the Free
19 * Software Foundation.
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.9.2.2 2006/08/10 06:07:49 sam Exp $
33 * $DragonFly: src/sys/netproto/802_11/ieee80211.h,v 1.9 2007/10/28 02:29:06 sephe Exp $
35 #ifndef _NET80211_IEEE80211_H_
36 #define _NET80211_IEEE80211_H_
39 * 802.11 protocol definitions.
42 #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */
44 /* is 802.11 address multicast/broadcast? */
45 #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01)
47 /* IEEE 802.11 PLCP header */
48 struct ieee80211_plcp_hdr {
56 #define IEEE80211_PLCP_SFD 0xF3A0
57 #define IEEE80211_PLCP_SERVICE 0x00
60 * generic definitions for IEEE 802.11 frames
62 struct ieee80211_frame {
65 uint8_t i_addr1[IEEE80211_ADDR_LEN];
66 uint8_t i_addr2[IEEE80211_ADDR_LEN];
67 uint8_t i_addr3[IEEE80211_ADDR_LEN];
69 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
73 struct ieee80211_qosframe {
76 uint8_t i_addr1[IEEE80211_ADDR_LEN];
77 uint8_t i_addr2[IEEE80211_ADDR_LEN];
78 uint8_t i_addr3[IEEE80211_ADDR_LEN];
81 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
85 struct ieee80211_qoscntl {
89 struct ieee80211_frame_addr4 {
92 uint8_t i_addr1[IEEE80211_ADDR_LEN];
93 uint8_t i_addr2[IEEE80211_ADDR_LEN];
94 uint8_t i_addr3[IEEE80211_ADDR_LEN];
96 uint8_t i_addr4[IEEE80211_ADDR_LEN];
100 struct ieee80211_qosframe_addr4 {
103 uint8_t i_addr1[IEEE80211_ADDR_LEN];
104 uint8_t i_addr2[IEEE80211_ADDR_LEN];
105 uint8_t i_addr3[IEEE80211_ADDR_LEN];
107 uint8_t i_addr4[IEEE80211_ADDR_LEN];
111 #define IEEE80211_FC0_VERSION_MASK 0x03
112 #define IEEE80211_FC0_VERSION_SHIFT 0
113 #define IEEE80211_FC0_VERSION_0 0x00
114 #define IEEE80211_FC0_TYPE_MASK 0x0c
115 #define IEEE80211_FC0_TYPE_SHIFT 2
116 #define IEEE80211_FC0_TYPE_MGT 0x00
117 #define IEEE80211_FC0_TYPE_CTL 0x04
118 #define IEEE80211_FC0_TYPE_DATA 0x08
120 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0
121 #define IEEE80211_FC0_SUBTYPE_SHIFT 4
123 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00
124 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10
125 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20
126 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30
127 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40
128 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50
129 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80
130 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90
131 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0
132 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0
133 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0
135 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0
136 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0
137 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0
138 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0
139 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0
140 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0
141 /* for TYPE_DATA (bit combination) */
142 #define IEEE80211_FC0_SUBTYPE_DATA 0x00
143 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10
144 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20
145 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30
146 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40
147 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50
148 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60
149 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70
150 #define IEEE80211_FC0_SUBTYPE_QOS 0x80
151 #define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0
153 #define IEEE80211_FC1_DIR_MASK 0x03
154 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */
155 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */
156 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */
157 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */
159 #define IEEE80211_FC1_MORE_FRAG 0x04
160 #define IEEE80211_FC1_RETRY 0x08
161 #define IEEE80211_FC1_PWR_MGT 0x10
162 #define IEEE80211_FC1_MORE_DATA 0x20
163 #define IEEE80211_FC1_WEP 0x40
164 #define IEEE80211_FC1_ORDER 0x80
166 #define IEEE80211_SEQ_FRAG_MASK 0x000f
167 #define IEEE80211_SEQ_FRAG_SHIFT 0
168 #define IEEE80211_SEQ_SEQ_MASK 0xfff0
169 #define IEEE80211_SEQ_SEQ_SHIFT 4
171 #define IEEE80211_NWID_LEN 32
173 #define IEEE80211_QOS_TXOP 0x00ff
174 /* bit 8 is reserved */
175 #define IEEE80211_QOS_ACKPOLICY 0x60
176 #define IEEE80211_QOS_ACKPOLICY_S 5
177 #define IEEE80211_QOS_ESOP 0x10
178 #define IEEE80211_QOS_ESOP_S 4
179 #define IEEE80211_QOS_TID 0x0f
181 /* does frame have QoS sequence control data */
182 #define IEEE80211_QOS_HAS_SEQ(wh) \
184 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
185 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
188 * WME/802.11e information element.
190 struct ieee80211_wme_info {
191 uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */
192 uint8_t wme_len; /* length in bytes */
193 uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */
194 uint8_t wme_type; /* OUI type */
195 uint8_t wme_subtype; /* OUI subtype */
196 uint8_t wme_version; /* spec revision */
197 uint8_t wme_info; /* QoS info */
201 * WME/802.11e Tspec Element
203 struct ieee80211_wme_tspec {
208 uint8_t ts_oui_subtype;
210 uint8_t ts_tsinfo[3];
211 uint8_t ts_nom_msdu[2];
212 uint8_t ts_max_msdu[2];
213 uint8_t ts_min_svc[4];
214 uint8_t ts_max_svc[4];
215 uint8_t ts_inactv_intv[4];
216 uint8_t ts_susp_intv[4];
217 uint8_t ts_start_svc[4];
218 uint8_t ts_min_rate[4];
219 uint8_t ts_mean_rate[4];
220 uint8_t ts_max_burst[4];
221 uint8_t ts_min_phy[4];
222 uint8_t ts_peak_rate[4];
224 uint8_t ts_surplus[2];
225 uint8_t ts_medium_time[2];
229 * WME AC parameter field
231 struct ieee80211_wme_acparams {
232 uint8_t acp_aci_aifsn;
233 uint8_t acp_logcwminmax;
237 #define WME_NUM_AC 4 /* 4 AC categories */
239 #define WME_PARAM_ACI 0x60 /* Mask for ACI field */
240 #define WME_PARAM_ACI_S 5 /* Shift for ACI field */
241 #define WME_PARAM_ACM 0x10 /* Mask for ACM bit */
242 #define WME_PARAM_ACM_S 4 /* Shift for ACM bit */
243 #define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */
244 #define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */
245 #define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */
246 #define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */
247 #define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */
248 #define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */
250 #define WME_AC_TO_TID(_ac) ( \
251 ((_ac) == WME_AC_VO) ? 6 : \
252 ((_ac) == WME_AC_VI) ? 5 : \
253 ((_ac) == WME_AC_BK) ? 1 : \
256 #define TID_TO_WME_AC(_tid) ( \
257 ((_tid) < 1) ? WME_AC_BE : \
258 ((_tid) < 3) ? WME_AC_BK : \
259 ((_tid) < 6) ? WME_AC_VI : \
263 * WME Parameter Element
265 struct ieee80211_wme_param {
268 uint8_t param_oui[3];
269 uint8_t param_oui_type;
270 uint8_t param_oui_sybtype;
271 uint8_t param_version;
272 uint8_t param_qosInfo;
273 #define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */
274 uint8_t param_reserved;
275 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC];
279 * Management Notification Frame
281 struct ieee80211_mnf {
282 uint8_t mnf_category;
287 #define MNF_SETUP_REQ 0
288 #define MNF_SETUP_RESP 1
289 #define MNF_TEARDOWN 2
294 struct ieee80211_frame_min {
297 uint8_t i_addr1[IEEE80211_ADDR_LEN];
298 uint8_t i_addr2[IEEE80211_ADDR_LEN];
302 struct ieee80211_frame_rts {
305 uint8_t i_ra[IEEE80211_ADDR_LEN];
306 uint8_t i_ta[IEEE80211_ADDR_LEN];
310 struct ieee80211_frame_cts {
313 uint8_t i_ra[IEEE80211_ADDR_LEN];
317 struct ieee80211_frame_ack {
320 uint8_t i_ra[IEEE80211_ADDR_LEN];
324 struct ieee80211_frame_pspoll {
327 uint8_t i_bssid[IEEE80211_ADDR_LEN];
328 uint8_t i_ta[IEEE80211_ADDR_LEN];
332 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */
334 uint8_t i_dur[2]; /* should be zero */
335 uint8_t i_ra[IEEE80211_ADDR_LEN];
336 uint8_t i_bssid[IEEE80211_ADDR_LEN];
341 * BEACON management packets
344 * octet beacon interval[2]
345 * octet capability information[2]
346 * information element
349 * octet information[length]
352 typedef uint8_t *ieee80211_mgt_beacon_t;
354 #define IEEE80211_BEACON_INTERVAL(beacon) \
355 ((beacon)[8] | ((beacon)[9] << 8))
356 #define IEEE80211_BEACON_CAPABILITY(beacon) \
357 ((beacon)[10] | ((beacon)[11] << 8))
359 #define IEEE80211_CAPINFO_ESS 0x0001
360 #define IEEE80211_CAPINFO_IBSS 0x0002
361 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004
362 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008
363 #define IEEE80211_CAPINFO_PRIVACY 0x0010
364 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020
365 #define IEEE80211_CAPINFO_PBCC 0x0040
366 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080
367 /* bits 8-9 are reserved */
368 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400
369 #define IEEE80211_CAPINFO_RSN 0x0800
370 /* bit 12 is reserved */
371 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000
372 /* bits 14-15 are reserved */
375 * 802.11i/WPA information element (maximally sized).
377 struct ieee80211_ie_wpa {
378 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */
379 uint8_t wpa_len; /* length in bytes */
380 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */
381 uint8_t wpa_type; /* OUI type */
382 uint16_t wpa_version; /* spec revision */
383 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */
384 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */
385 uint32_t wpa_uciphers[8];/* ciphers */
386 uint16_t wpa_authselcnt; /* authentication selector cnt*/
387 uint32_t wpa_authsels[8];/* selectors */
388 uint16_t wpa_caps; /* 802.11i capabilities */
389 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */
390 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */
394 * Management information element payloads.
398 IEEE80211_ELEMID_SSID = 0,
399 IEEE80211_ELEMID_RATES = 1,
400 IEEE80211_ELEMID_FHPARMS = 2,
401 IEEE80211_ELEMID_DSPARMS = 3,
402 IEEE80211_ELEMID_CFPARMS = 4,
403 IEEE80211_ELEMID_TIM = 5,
404 IEEE80211_ELEMID_IBSSPARMS = 6,
405 IEEE80211_ELEMID_COUNTRY = 7,
406 IEEE80211_ELEMID_CHALLENGE = 16,
407 /* 17-31 reserved for challenge text extension */
408 IEEE80211_ELEMID_ERP = 42,
409 IEEE80211_ELEMID_RSN = 48,
410 IEEE80211_ELEMID_XRATES = 50,
411 IEEE80211_ELEMID_TPC = 150,
412 IEEE80211_ELEMID_CCKM = 156,
413 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */
416 struct ieee80211_tim_ie {
417 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */
419 uint8_t tim_count; /* DTIM count */
420 uint8_t tim_period; /* DTIM period */
421 uint8_t tim_bitctl; /* bitmap control */
422 uint8_t tim_bitmap[1]; /* variable-length bitmap */
425 struct ieee80211_country_ie {
426 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */
428 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */
430 uint8_t schan; /* starting channel */
431 uint8_t nchan; /* number channels */
432 uint8_t maxtxpwr; /* tx power cap */
433 } __packed band[4]; /* up to 4 sub bands */
436 #define IEEE80211_CHALLENGE_LEN 128
438 #define IEEE80211_RATE_BASIC 0x80
439 #define IEEE80211_RATE_VAL 0x7f
440 #define IEEE80211_RS_RATE(rs, idx) \
441 ((rs)->rs_rates[idx] & IEEE80211_RATE_VAL)
443 /* EPR information element flags */
444 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01
445 #define IEEE80211_ERP_USE_PROTECTION 0x02
446 #define IEEE80211_ERP_LONG_PREAMBLE 0x04
448 /* Atheros private advanced capabilities info */
449 #define ATHEROS_CAP_TURBO_PRIME 0x01
450 #define ATHEROS_CAP_COMPRESSION 0x02
451 #define ATHEROS_CAP_FAST_FRAME 0x04
452 /* bits 3-6 reserved */
453 #define ATHEROS_CAP_BOOST 0x80
455 #define ATH_OUI 0x7f0300 /* Atheros OUI */
456 #define ATH_OUI_TYPE 0x01
457 #define ATH_OUI_VERSION 0x01
459 #define WPA_OUI 0xf25000
460 #define WPA_OUI_TYPE 0x01
461 #define WPA_VERSION 1 /* current supported version */
463 #define WPA_CSE_NULL 0x00
464 #define WPA_CSE_WEP40 0x01
465 #define WPA_CSE_TKIP 0x02
466 #define WPA_CSE_CCMP 0x04
467 #define WPA_CSE_WEP104 0x05
469 #define WPA_ASE_NONE 0x00
470 #define WPA_ASE_8021X_UNSPEC 0x01
471 #define WPA_ASE_8021X_PSK 0x02
473 #define RSN_OUI 0xac0f00
474 #define RSN_VERSION 1 /* current supported version */
476 #define RSN_CSE_NULL 0x00
477 #define RSN_CSE_WEP40 0x01
478 #define RSN_CSE_TKIP 0x02
479 #define RSN_CSE_WRAP 0x03
480 #define RSN_CSE_CCMP 0x04
481 #define RSN_CSE_WEP104 0x05
483 #define RSN_ASE_NONE 0x00
484 #define RSN_ASE_8021X_UNSPEC 0x01
485 #define RSN_ASE_8021X_PSK 0x02
487 #define RSN_CAP_PREAUTH 0x01
489 #define WME_OUI 0xf25000
490 #define WME_OUI_TYPE 0x02
491 #define WME_INFO_OUI_SUBTYPE 0x00
492 #define WME_PARAM_OUI_SUBTYPE 0x01
493 #define WME_VERSION 1
495 /* WME stream classes */
496 #define WME_AC_BE 0 /* best effort */
497 #define WME_AC_BK 1 /* background */
498 #define WME_AC_VI 2 /* video */
499 #define WME_AC_VO 3 /* voice */
502 * AUTH management packets
509 * octet chal.text[253]
512 typedef uint8_t *ieee80211_mgt_auth_t;
514 #define IEEE80211_AUTH_ALGORITHM(auth) \
515 ((auth)[0] | ((auth)[1] << 8))
516 #define IEEE80211_AUTH_TRANSACTION(auth) \
517 ((auth)[2] | ((auth)[3] << 8))
518 #define IEEE80211_AUTH_STATUS(auth) \
519 ((auth)[4] | ((auth)[5] << 8))
521 #define IEEE80211_AUTH_ALG_OPEN 0x0000
522 #define IEEE80211_AUTH_ALG_SHARED 0x0001
523 #define IEEE80211_AUTH_ALG_LEAP 0x0080
526 IEEE80211_AUTH_OPEN_REQUEST = 1,
527 IEEE80211_AUTH_OPEN_RESPONSE = 2,
531 IEEE80211_AUTH_SHARED_REQUEST = 1,
532 IEEE80211_AUTH_SHARED_CHALLENGE = 2,
533 IEEE80211_AUTH_SHARED_RESPONSE = 3,
534 IEEE80211_AUTH_SHARED_PASS = 4,
540 * Unlisted codes are reserved
544 IEEE80211_REASON_UNSPECIFIED = 1,
545 IEEE80211_REASON_AUTH_EXPIRE = 2,
546 IEEE80211_REASON_AUTH_LEAVE = 3,
547 IEEE80211_REASON_ASSOC_EXPIRE = 4,
548 IEEE80211_REASON_ASSOC_TOOMANY = 5,
549 IEEE80211_REASON_NOT_AUTHED = 6,
550 IEEE80211_REASON_NOT_ASSOCED = 7,
551 IEEE80211_REASON_ASSOC_LEAVE = 8,
552 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9,
554 IEEE80211_REASON_RSN_REQUIRED = 11,
555 IEEE80211_REASON_RSN_INCONSISTENT = 12,
556 IEEE80211_REASON_IE_INVALID = 13,
557 IEEE80211_REASON_MIC_FAILURE = 14,
559 IEEE80211_STATUS_SUCCESS = 0,
560 IEEE80211_STATUS_UNSPECIFIED = 1,
561 IEEE80211_STATUS_CAPINFO = 10,
562 IEEE80211_STATUS_NOT_ASSOCED = 11,
563 IEEE80211_STATUS_OTHER = 12,
564 IEEE80211_STATUS_ALG = 13,
565 IEEE80211_STATUS_SEQUENCE = 14,
566 IEEE80211_STATUS_CHALLENGE = 15,
567 IEEE80211_STATUS_TIMEOUT = 16,
568 IEEE80211_STATUS_TOOMANY = 17,
569 IEEE80211_STATUS_BASIC_RATE = 18,
570 IEEE80211_STATUS_SP_REQUIRED = 19,
571 IEEE80211_STATUS_PBCC_REQUIRED = 20,
572 IEEE80211_STATUS_CA_REQUIRED = 21,
573 IEEE80211_STATUS_TOO_MANY_STATIONS = 22,
574 IEEE80211_STATUS_RATES = 23,
575 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25,
576 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26,
579 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */
580 #define IEEE80211_WEP_IVLEN 3 /* 24bit */
581 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */
582 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */
583 #define IEEE80211_WEP_NKID 4 /* number of key ids */
586 * 802.11i defines an extended IV for use with non-WEP ciphers.
587 * When the EXTIV bit is set in the key id byte an additional
588 * 4 bytes immediately follow the IV for TKIP. For CCMP the
589 * EXTIV bit is likewise set but the 8 bytes represent the
590 * CCMP header rather than IV+extended-IV.
592 #define IEEE80211_WEP_EXTIV 0x20
593 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */
594 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */
596 #define IEEE80211_CRC_LEN 4
599 * Maximum acceptable MTU is:
600 * IEEE80211_MAX_LEN - WEP overhead - CRC -
601 * QoS overhead - RSN/WPA overhead
602 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default
603 * mtu is Ethernet-compatible; it's set by ether_ifattach.
605 #define IEEE80211_MTU_MAX 2290
606 #define IEEE80211_MTU_MIN 32
608 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \
609 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
610 #define IEEE80211_ACK_LEN \
611 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
612 #define IEEE80211_MIN_LEN \
613 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
616 * The 802.11 spec says at most 2007 stations may be
617 * associated at once. For most AP's this is way more
618 * than is feasible so we use a default of 128. This
619 * number may be overridden by the driver and/or by
620 * user configuration.
622 #define IEEE80211_AID_MAX 2007
623 #define IEEE80211_AID_DEF 128
625 #define IEEE80211_AID(b) ((b) &~ 0xc000)
628 * RTS frame length parameters. The default is specified in
629 * the 802.11 spec as 512; we treat it as implementation-dependent
630 * so it's defined in ieee80211_var.h. The max may be wrong
633 #define IEEE80211_RTS_MIN 1
634 #define IEEE80211_RTS_MAX 2346
637 * TX fragmentation parameters. As above for RTS, we treat
638 * default as implementation-dependent so define it elsewhere.
640 #define IEEE80211_FRAG_MIN 256
641 #define IEEE80211_FRAG_MAX 2346
644 * Beacon interval (TU's). Min+max come from WiFi requirements.
645 * As above, we treat default as implementation-dependent so
646 * define it elsewhere.
648 #define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */
649 #define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */
652 * DTIM period (beacons). Min+max are not really defined
653 * by the protocol but we want them publicly visible so
656 #define IEEE80211_DTIM_MAX 15 /* max DTIM period */
657 #define IEEE80211_DTIM_MIN 1 /* min DTIM period */
660 * Beacon miss threshold (beacons). As for DTIM, we define
661 * them here to be publicly visible. Note the max may be
662 * clamped depending on device capabilities.
664 #define IEEE80211_HWBMISS_MIN 1
665 #define IEEE80211_HWBMISS_MAX 255
668 * Contention window (slots).
670 #define IEEE80211_CW_MAX 1023 /* aCWmax */
671 #define IEEE80211_CW_MIN_0 31 /* DS/CCK aCWmin, ERP aCWmin(0) */
672 #define IEEE80211_CW_MIN_1 15 /* OFDM aCWmin, ERP aCWmin(1) */
675 * SIFS (microseconds).
677 #define IEEE80211_DUR_SIFS 10 /* DS/CCK/ERP SIFS */
678 #define IEEE80211_DUR_OFDM_SIFS 16 /* OFDM SIFS */
681 * Slot time (microseconds).
683 #define IEEE80211_DUR_SLOT 20 /* DS/CCK slottime, ERP long slottime */
684 #define IEEE80211_DUR_SHSLOT 9 /* ERP short slottime */
685 #define IEEE80211_DUR_OFDM_SLOT 9 /* OFDM slottime */
688 * DIFS (microseconds).
690 #define IEEE80211_DUR_DIFS(sifs, slot) ((sifs) + 2 * (slot))
692 #define IEEE80211_MGT_SUBTYPE_NAMES { \
693 "assoc-req", "assoc-resp", \
694 "reassoc-req", "reassoc-resp", \
695 "probe-req", "probe-resp", \
696 "reserved#6", "reserved#7", \
698 "disassoc", "auth", \
699 "deauth", "reserved#13", \
700 "reserved#14", "reserved#15" \
703 #define IEEE80211_CTL_SUBTYPE_NAMES { \
704 "reserved#0", "reserved#1", \
705 "reserved#2", "reserved#3", \
706 "reserved#3", "reserved#5", \
707 "reserved#6", "reserved#7", \
708 "reserved#8", "reserved#9", \
711 "cf-end", "cf-end-ack" \
714 #define IEEE80211_DATA_SUBTYPE_NAMES { \
715 "data", "data-cf-ack", \
716 "data-cf-poll", "data-cf-ack-poll", \
718 "cf-poll", "cf-ack-poll", \
719 "qos-data", "qos-data-cf-ack", \
720 "qos-data-cf-poll", "qos-data-cf-ack-poll", \
721 "qos", "reserved#13", \
722 "qos-cf-poll", "qos-cf-ack-poll" \
725 #define IEEE80211_TYPE_NAMES { "mgt", "ctl", "data", "reserved#4" }
727 #endif /* _NET80211_IEEE80211_H_ */