2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002-2009 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.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef _NET80211_IEEE80211_H_
29 #define _NET80211_IEEE80211_H_
32 * 802.11 protocol definitions.
35 #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */
36 /* is 802.11 address multicast/broadcast? */
37 #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01)
39 typedef uint16_t ieee80211_seq;
41 /* IEEE 802.11 PLCP header */
42 struct ieee80211_plcp_hdr {
50 #define IEEE80211_PLCP_SFD 0xF3A0
51 #define IEEE80211_PLCP_SERVICE 0x00
52 #define IEEE80211_PLCP_SERVICE_LOCKED 0x04
53 #define IEEE80211_PLCL_SERVICE_PBCC 0x08
54 #define IEEE80211_PLCP_SERVICE_LENEXT5 0x20
55 #define IEEE80211_PLCP_SERVICE_LENEXT6 0x40
56 #define IEEE80211_PLCP_SERVICE_LENEXT7 0x80
59 * generic definitions for IEEE 802.11 frames
61 struct ieee80211_frame {
64 uint8_t i_addr1[IEEE80211_ADDR_LEN];
65 uint8_t i_addr2[IEEE80211_ADDR_LEN];
66 uint8_t i_addr3[IEEE80211_ADDR_LEN];
68 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
72 struct ieee80211_qosframe {
75 uint8_t i_addr1[IEEE80211_ADDR_LEN];
76 uint8_t i_addr2[IEEE80211_ADDR_LEN];
77 uint8_t i_addr3[IEEE80211_ADDR_LEN];
80 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
84 struct ieee80211_qoscntl {
88 struct ieee80211_frame_addr4 {
91 uint8_t i_addr1[IEEE80211_ADDR_LEN];
92 uint8_t i_addr2[IEEE80211_ADDR_LEN];
93 uint8_t i_addr3[IEEE80211_ADDR_LEN];
95 uint8_t i_addr4[IEEE80211_ADDR_LEN];
99 struct ieee80211_qosframe_addr4 {
102 uint8_t i_addr1[IEEE80211_ADDR_LEN];
103 uint8_t i_addr2[IEEE80211_ADDR_LEN];
104 uint8_t i_addr3[IEEE80211_ADDR_LEN];
106 uint8_t i_addr4[IEEE80211_ADDR_LEN];
110 #define IEEE80211_FC0_VERSION_MASK 0x03
111 #define IEEE80211_FC0_VERSION_SHIFT 0
112 #define IEEE80211_FC0_VERSION_0 0x00
113 #define IEEE80211_FC0_TYPE_MASK 0x0c
114 #define IEEE80211_FC0_TYPE_SHIFT 2
115 #define IEEE80211_FC0_TYPE_MGT 0x00
116 #define IEEE80211_FC0_TYPE_CTL 0x04
117 #define IEEE80211_FC0_TYPE_DATA 0x08
119 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0
120 #define IEEE80211_FC0_SUBTYPE_SHIFT 4
122 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00
123 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10
124 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20
125 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30
126 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40
127 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50
128 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80
129 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90
130 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0
131 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0
132 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0
133 #define IEEE80211_FC0_SUBTYPE_ACTION 0xd0
135 #define IEEE80211_FC0_SUBTYPE_BAR 0x80
136 #define IEEE80211_FC0_SUBTYPE_BA 0x90
137 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0
138 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0
139 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0
140 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0
141 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0
142 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0
143 /* for TYPE_DATA (bit combination) */
144 #define IEEE80211_FC0_SUBTYPE_DATA 0x00
145 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10
146 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20
147 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30
148 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40
149 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50
150 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60
151 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70
152 #define IEEE80211_FC0_SUBTYPE_QOS 0x80
153 #define IEEE80211_FC0_SUBTYPE_QOS_NULL 0xc0
155 #define IEEE80211_FC1_DIR_MASK 0x03
156 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */
157 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */
158 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */
159 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */
161 #define IEEE80211_FC1_MORE_FRAG 0x04
162 #define IEEE80211_FC1_RETRY 0x08
163 #define IEEE80211_FC1_PWR_MGT 0x10
164 #define IEEE80211_FC1_MORE_DATA 0x20
165 #define IEEE80211_FC1_WEP 0x40
166 #define IEEE80211_FC1_ORDER 0x80
168 #define IEEE80211_SEQ_FRAG_MASK 0x000f
169 #define IEEE80211_SEQ_FRAG_SHIFT 0
170 #define IEEE80211_SEQ_SEQ_MASK 0xfff0
171 #define IEEE80211_SEQ_SEQ_SHIFT 4
172 #define IEEE80211_SEQ_RANGE 4096
174 #define IEEE80211_SEQ_ADD(seq, incr) \
175 (((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1))
176 #define IEEE80211_SEQ_INC(seq) IEEE80211_SEQ_ADD(seq,1)
177 #define IEEE80211_SEQ_SUB(a, b) \
178 (((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1))
180 #define IEEE80211_SEQ_BA_RANGE 2048 /* 2^11 */
181 #define IEEE80211_SEQ_BA_BEFORE(a, b) \
182 (IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1)
184 #define IEEE80211_NWID_LEN 32
186 #define IEEE80211_QOS_TXOP 0x00ff
187 /* bit 8 is reserved */
188 #define IEEE80211_QOS_AMSDU 0x80
189 #define IEEE80211_QOS_AMSDU_S 7
190 #define IEEE80211_QOS_ACKPOLICY 0x60
191 #define IEEE80211_QOS_ACKPOLICY_S 5
192 #define IEEE80211_QOS_ACKPOLICY_NOACK 0x20 /* No ACK required */
193 #define IEEE80211_QOS_ACKPOLICY_BA 0x60 /* Block ACK */
194 #define IEEE80211_QOS_EOSP 0x10 /* EndOfService Period*/
195 #define IEEE80211_QOS_EOSP_S 4
196 #define IEEE80211_QOS_TID 0x0f
198 /* does frame have QoS sequence control data */
199 #define IEEE80211_QOS_HAS_SEQ(wh) \
201 (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
202 (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
205 * WME/802.11e information element.
207 struct ieee80211_wme_info {
208 uint8_t wme_id; /* IEEE80211_ELEMID_VENDOR */
209 uint8_t wme_len; /* length in bytes */
210 uint8_t wme_oui[3]; /* 0x00, 0x50, 0xf2 */
211 uint8_t wme_type; /* OUI type */
212 uint8_t wme_subtype; /* OUI subtype */
213 uint8_t wme_version; /* spec revision */
214 uint8_t wme_info; /* QoS info */
218 * WME/802.11e Tspec Element
220 struct ieee80211_wme_tspec {
225 uint8_t ts_oui_subtype;
227 uint8_t ts_tsinfo[3];
228 uint8_t ts_nom_msdu[2];
229 uint8_t ts_max_msdu[2];
230 uint8_t ts_min_svc[4];
231 uint8_t ts_max_svc[4];
232 uint8_t ts_inactv_intv[4];
233 uint8_t ts_susp_intv[4];
234 uint8_t ts_start_svc[4];
235 uint8_t ts_min_rate[4];
236 uint8_t ts_mean_rate[4];
237 uint8_t ts_max_burst[4];
238 uint8_t ts_min_phy[4];
239 uint8_t ts_peak_rate[4];
241 uint8_t ts_surplus[2];
242 uint8_t ts_medium_time[2];
246 * WME AC parameter field
248 struct ieee80211_wme_acparams {
249 uint8_t acp_aci_aifsn;
250 uint8_t acp_logcwminmax;
254 #define WME_NUM_AC 4 /* 4 AC categories */
255 #define WME_NUM_TID 16 /* 16 tids */
257 #define WME_PARAM_ACI 0x60 /* Mask for ACI field */
258 #define WME_PARAM_ACI_S 5 /* Shift for ACI field */
259 #define WME_PARAM_ACM 0x10 /* Mask for ACM bit */
260 #define WME_PARAM_ACM_S 4 /* Shift for ACM bit */
261 #define WME_PARAM_AIFSN 0x0f /* Mask for aifsn field */
262 #define WME_PARAM_AIFSN_S 0 /* Shift for aifsn field */
263 #define WME_PARAM_LOGCWMIN 0x0f /* Mask for CwMin field (in log) */
264 #define WME_PARAM_LOGCWMIN_S 0 /* Shift for CwMin field */
265 #define WME_PARAM_LOGCWMAX 0xf0 /* Mask for CwMax field (in log) */
266 #define WME_PARAM_LOGCWMAX_S 4 /* Shift for CwMax field */
268 #define WME_AC_TO_TID(_ac) ( \
269 ((_ac) == WME_AC_VO) ? 6 : \
270 ((_ac) == WME_AC_VI) ? 5 : \
271 ((_ac) == WME_AC_BK) ? 1 : \
274 #define TID_TO_WME_AC(_tid) ( \
275 ((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \
276 ((_tid) < 3) ? WME_AC_BK : \
277 ((_tid) < 6) ? WME_AC_VI : \
281 * WME Parameter Element
283 struct ieee80211_wme_param {
286 uint8_t param_oui[3];
287 uint8_t param_oui_type;
288 uint8_t param_oui_subtype;
289 uint8_t param_version;
290 uint8_t param_qosInfo;
291 #define WME_QOSINFO_COUNT 0x0f /* Mask for param count field */
292 uint8_t param_reserved;
293 struct ieee80211_wme_acparams params_acParams[WME_NUM_AC];
297 * Management Notification Frame
299 struct ieee80211_mnf {
300 uint8_t mnf_category;
305 #define MNF_SETUP_REQ 0
306 #define MNF_SETUP_RESP 1
307 #define MNF_TEARDOWN 2
310 * 802.11n Management Action Frames
312 /* generic frame format */
313 struct ieee80211_action {
318 #define IEEE80211_ACTION_CAT_QOS 0 /* QoS */
319 #define IEEE80211_ACTION_CAT_BA 3 /* BA */
320 #define IEEE80211_ACTION_CAT_HT 7 /* HT */
322 #define IEEE80211_ACTION_HT_TXCHWIDTH 0 /* recommended xmit chan width*/
323 #define IEEE80211_ACTION_HT_MIMOPWRSAVE 1 /* MIMO power save */
325 /* HT - recommended transmission channel width */
326 struct ieee80211_action_ht_txchwidth {
327 struct ieee80211_action at_header;
331 #define IEEE80211_A_HT_TXCHWIDTH_20 0
332 #define IEEE80211_A_HT_TXCHWIDTH_2040 1
334 /* HT - MIMO Power Save (NB: D2.04) */
335 struct ieee80211_action_ht_mimopowersave {
336 struct ieee80211_action am_header;
340 #define IEEE80211_A_HT_MIMOPWRSAVE_ENA 0x01 /* PS enabled */
341 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE 0x02
342 #define IEEE80211_A_HT_MIMOPWRSAVE_MODE_S 1
343 #define IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC 0x02 /* Dynamic Mode */
344 #define IEEE80211_A_HT_MIMOPWRSAVE_STATIC 0x00 /* no SM packets */
345 /* bits 2-7 reserved */
347 /* Block Ack actions */
348 #define IEEE80211_ACTION_BA_ADDBA_REQUEST 0 /* ADDBA request */
349 #define IEEE80211_ACTION_BA_ADDBA_RESPONSE 1 /* ADDBA response */
350 #define IEEE80211_ACTION_BA_DELBA 2 /* DELBA */
352 /* Block Ack Parameter Set */
353 #define IEEE80211_BAPS_BUFSIZ 0xffc0 /* buffer size */
354 #define IEEE80211_BAPS_BUFSIZ_S 6
355 #define IEEE80211_BAPS_TID 0x003c /* TID */
356 #define IEEE80211_BAPS_TID_S 2
357 #define IEEE80211_BAPS_POLICY 0x0002 /* block ack policy */
358 #define IEEE80211_BAPS_POLICY_S 1
360 #define IEEE80211_BAPS_POLICY_DELAYED (0<<IEEE80211_BAPS_POLICY_S)
361 #define IEEE80211_BAPS_POLICY_IMMEDIATE (1<<IEEE80211_BAPS_POLICY_S)
363 /* Block Ack Sequence Control */
364 #define IEEE80211_BASEQ_START 0xfff0 /* starting seqnum */
365 #define IEEE80211_BASEQ_START_S 4
366 #define IEEE80211_BASEQ_FRAG 0x000f /* fragment number */
367 #define IEEE80211_BASEQ_FRAG_S 0
369 /* Delayed Block Ack Parameter Set */
370 #define IEEE80211_DELBAPS_TID 0xf000 /* TID */
371 #define IEEE80211_DELBAPS_TID_S 12
372 #define IEEE80211_DELBAPS_INIT 0x0800 /* initiator */
373 #define IEEE80211_DELBAPS_INIT_S 11
375 /* BA - ADDBA request */
376 struct ieee80211_action_ba_addbarequest {
377 struct ieee80211_action rq_header;
378 uint8_t rq_dialogtoken;
379 uint16_t rq_baparamset;
380 uint16_t rq_batimeout; /* in TUs */
381 uint16_t rq_baseqctl;
384 /* BA - ADDBA response */
385 struct ieee80211_action_ba_addbaresponse {
386 struct ieee80211_action rs_header;
387 uint8_t rs_dialogtoken;
388 uint16_t rs_statuscode;
389 uint16_t rs_baparamset;
390 uint16_t rs_batimeout; /* in TUs */
394 struct ieee80211_action_ba_delba {
395 struct ieee80211_action dl_header;
396 uint16_t dl_baparamset;
397 uint16_t dl_reasoncode;
401 #define IEEE80211_BAR_TID 0xf000 /* TID */
402 #define IEEE80211_BAR_TID_S 12
403 #define IEEE80211_BAR_COMP 0x0004 /* Compressed Bitmap */
404 #define IEEE80211_BAR_MTID 0x0002 /* Multi-TID */
405 #define IEEE80211_BAR_NOACK 0x0001 /* No-Ack policy */
407 /* BAR Starting Sequence Control */
408 #define IEEE80211_BAR_SEQ_START 0xfff0 /* starting seqnum */
409 #define IEEE80211_BAR_SEQ_START_S 4
411 struct ieee80211_ba_request {
413 uint16_t rq_barseqctl;
419 struct ieee80211_frame_min {
422 uint8_t i_addr1[IEEE80211_ADDR_LEN];
423 uint8_t i_addr2[IEEE80211_ADDR_LEN];
427 struct ieee80211_frame_rts {
430 uint8_t i_ra[IEEE80211_ADDR_LEN];
431 uint8_t i_ta[IEEE80211_ADDR_LEN];
435 struct ieee80211_frame_cts {
438 uint8_t i_ra[IEEE80211_ADDR_LEN];
442 struct ieee80211_frame_ack {
445 uint8_t i_ra[IEEE80211_ADDR_LEN];
449 struct ieee80211_frame_pspoll {
452 uint8_t i_bssid[IEEE80211_ADDR_LEN];
453 uint8_t i_ta[IEEE80211_ADDR_LEN];
457 struct ieee80211_frame_cfend { /* NB: also CF-End+CF-Ack */
459 uint8_t i_dur[2]; /* should be zero */
460 uint8_t i_ra[IEEE80211_ADDR_LEN];
461 uint8_t i_bssid[IEEE80211_ADDR_LEN];
465 struct ieee80211_frame_bar {
468 uint8_t i_ra[IEEE80211_ADDR_LEN];
469 uint8_t i_ta[IEEE80211_ADDR_LEN];
476 * BEACON management packets
479 * octet beacon interval[2]
480 * octet capability information[2]
481 * information element
484 * octet information[length]
487 #define IEEE80211_BEACON_INTERVAL(beacon) \
488 ((beacon)[8] | ((beacon)[9] << 8))
489 #define IEEE80211_BEACON_CAPABILITY(beacon) \
490 ((beacon)[10] | ((beacon)[11] << 8))
492 #define IEEE80211_CAPINFO_ESS 0x0001
493 #define IEEE80211_CAPINFO_IBSS 0x0002
494 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004
495 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008
496 #define IEEE80211_CAPINFO_PRIVACY 0x0010
497 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020
498 #define IEEE80211_CAPINFO_PBCC 0x0040
499 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080
500 #define IEEE80211_CAPINFO_SPECTRUM_MGMT 0x0100
501 /* bit 9 is reserved */
502 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400
503 #define IEEE80211_CAPINFO_RSN 0x0800
504 /* bit 12 is reserved */
505 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000
506 /* bits 14-15 are reserved */
508 #define IEEE80211_CAPINFO_BITS \
509 "\20\1ESS\2IBSS\3CF_POLLABLE\4CF_POLLREQ\5PRIVACY\6SHORT_PREAMBLE" \
510 "\7PBCC\10CHNL_AGILITY\11SPECTRUM_MGMT\13SHORT_SLOTTIME\14RSN" \
514 * 802.11i/WPA information element (maximally sized).
516 struct ieee80211_ie_wpa {
517 uint8_t wpa_id; /* IEEE80211_ELEMID_VENDOR */
518 uint8_t wpa_len; /* length in bytes */
519 uint8_t wpa_oui[3]; /* 0x00, 0x50, 0xf2 */
520 uint8_t wpa_type; /* OUI type */
521 uint16_t wpa_version; /* spec revision */
522 uint32_t wpa_mcipher[1]; /* multicast/group key cipher */
523 uint16_t wpa_uciphercnt; /* # pairwise key ciphers */
524 uint32_t wpa_uciphers[8];/* ciphers */
525 uint16_t wpa_authselcnt; /* authentication selector cnt*/
526 uint32_t wpa_authsels[8];/* selectors */
527 uint16_t wpa_caps; /* 802.11i capabilities */
528 uint16_t wpa_pmkidcnt; /* 802.11i pmkid count */
529 uint16_t wpa_pmkids[8]; /* 802.11i pmkids */
533 * 802.11n HT Capability IE
534 * NB: these reflect D1.10
536 struct ieee80211_ie_htcap {
537 uint8_t hc_id; /* element ID */
538 uint8_t hc_len; /* length in bytes */
539 uint16_t hc_cap; /* HT caps (see below) */
540 uint8_t hc_param; /* HT params (see below) */
541 uint8_t hc_mcsset[16]; /* supported MCS set */
542 uint16_t hc_extcap; /* extended HT capabilities */
543 uint32_t hc_txbf; /* txbf capabilities */
544 uint8_t hc_antenna; /* antenna capabilities */
547 /* HT capability flags (ht_cap) */
548 #define IEEE80211_HTCAP_LDPC 0x0001 /* LDPC supported */
549 #define IEEE80211_HTCAP_CHWIDTH40 0x0002 /* 20/40 supported */
550 #define IEEE80211_HTCAP_SMPS 0x000c /* SM Power Save mode */
551 #define IEEE80211_HTCAP_SMPS_OFF 0x000c /* disabled */
552 #define IEEE80211_HTCAP_SMPS_DYNAMIC 0x0004 /* send RTS first */
553 /* NB: SMPS value 2 is reserved */
554 #define IEEE80211_HTCAP_SMPS_ENA 0x0000 /* enabled (static mode) */
555 #define IEEE80211_HTCAP_GREENFIELD 0x0010 /* Greenfield supported */
556 #define IEEE80211_HTCAP_SHORTGI20 0x0020 /* Short GI in 20MHz */
557 #define IEEE80211_HTCAP_SHORTGI40 0x0040 /* Short GI in 40MHz */
558 #define IEEE80211_HTCAP_TXSTBC 0x0080 /* STBC tx ok */
559 #define IEEE80211_HTCAP_RXSTBC 0x0300 /* STBC rx support */
560 #define IEEE80211_HTCAP_RXSTBC_S 8
561 #define IEEE80211_HTCAP_RXSTBC_1STREAM 0x0100 /* 1 spatial stream */
562 #define IEEE80211_HTCAP_RXSTBC_2STREAM 0x0200 /* 1-2 spatial streams*/
563 #define IEEE80211_HTCAP_RXSTBC_3STREAM 0x0300 /* 1-3 spatial streams*/
564 #define IEEE80211_HTCAP_DELBA 0x0400 /* HT DELBA supported */
565 #define IEEE80211_HTCAP_MAXAMSDU 0x0800 /* max A-MSDU length */
566 #define IEEE80211_HTCAP_MAXAMSDU_7935 0x0800 /* 7935 octets */
567 #define IEEE80211_HTCAP_MAXAMSDU_3839 0x0000 /* 3839 octets */
568 #define IEEE80211_HTCAP_DSSSCCK40 0x1000 /* DSSS/CCK in 40MHz */
569 #define IEEE80211_HTCAP_PSMP 0x2000 /* PSMP supported */
570 #define IEEE80211_HTCAP_40INTOLERANT 0x4000 /* 40MHz intolerant */
571 #define IEEE80211_HTCAP_LSIGTXOPPROT 0x8000 /* L-SIG TXOP prot */
573 #define IEEE80211_HTCAP_BITS \
574 "\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
575 "\13DELBA\14AMSDU(7935)\15DSSSCCK40\16PSMP\1740INTOLERANT" \
578 /* HT parameters (hc_param) */
579 #define IEEE80211_HTCAP_MAXRXAMPDU 0x03 /* max rx A-MPDU factor */
580 #define IEEE80211_HTCAP_MAXRXAMPDU_S 0
581 #define IEEE80211_HTCAP_MAXRXAMPDU_8K 0
582 #define IEEE80211_HTCAP_MAXRXAMPDU_16K 1
583 #define IEEE80211_HTCAP_MAXRXAMPDU_32K 2
584 #define IEEE80211_HTCAP_MAXRXAMPDU_64K 3
585 #define IEEE80211_HTCAP_MPDUDENSITY 0x1c /* min MPDU start spacing */
586 #define IEEE80211_HTCAP_MPDUDENSITY_S 2
587 #define IEEE80211_HTCAP_MPDUDENSITY_NA 0 /* no time restriction */
588 #define IEEE80211_HTCAP_MPDUDENSITY_025 1 /* 1/4 us */
589 #define IEEE80211_HTCAP_MPDUDENSITY_05 2 /* 1/2 us */
590 #define IEEE80211_HTCAP_MPDUDENSITY_1 3 /* 1 us */
591 #define IEEE80211_HTCAP_MPDUDENSITY_2 4 /* 2 us */
592 #define IEEE80211_HTCAP_MPDUDENSITY_4 5 /* 4 us */
593 #define IEEE80211_HTCAP_MPDUDENSITY_8 6 /* 8 us */
594 #define IEEE80211_HTCAP_MPDUDENSITY_16 7 /* 16 us */
596 /* HT extended capabilities (hc_extcap) */
597 #define IEEE80211_HTCAP_PCO 0x0001 /* PCO capable */
598 #define IEEE80211_HTCAP_PCOTRANS 0x0006 /* PCO transition time */
599 #define IEEE80211_HTCAP_PCOTRANS_S 1
600 #define IEEE80211_HTCAP_PCOTRANS_04 0x0002 /* 400 us */
601 #define IEEE80211_HTCAP_PCOTRANS_15 0x0004 /* 1.5 ms */
602 #define IEEE80211_HTCAP_PCOTRANS_5 0x0006 /* 5 ms */
603 /* bits 3-7 reserved */
604 #define IEEE80211_HTCAP_MCSFBACK 0x0300 /* MCS feedback */
605 #define IEEE80211_HTCAP_MCSFBACK_S 8
606 #define IEEE80211_HTCAP_MCSFBACK_NONE 0x0000 /* nothing provided */
607 #define IEEE80211_HTCAP_MCSFBACK_UNSOL 0x0200 /* unsolicited feedback */
608 #define IEEE80211_HTCAP_MCSFBACK_MRQ 0x0300 /* " "+respond to MRQ */
609 #define IEEE80211_HTCAP_HTC 0x0400 /* +HTC support */
610 #define IEEE80211_HTCAP_RDR 0x0800 /* reverse direction responder*/
611 /* bits 12-15 reserved */
614 * 802.11n HT Information IE
616 struct ieee80211_ie_htinfo {
617 uint8_t hi_id; /* element ID */
618 uint8_t hi_len; /* length in bytes */
619 uint8_t hi_ctrlchannel; /* primary channel */
620 uint8_t hi_byte1; /* ht ie byte 1 */
621 uint8_t hi_byte2; /* ht ie byte 2 */
622 uint8_t hi_byte3; /* ht ie byte 3 */
623 uint16_t hi_byte45; /* ht ie bytes 4+5 */
624 uint8_t hi_basicmcsset[16]; /* basic MCS set */
628 #define IEEE80211_HTINFO_2NDCHAN 0x03 /* secondary/ext chan offset */
629 #define IEEE80211_HTINFO_2NDCHAN_S 0
630 #define IEEE80211_HTINFO_2NDCHAN_NONE 0x00 /* no secondary/ext channel */
631 #define IEEE80211_HTINFO_2NDCHAN_ABOVE 0x01 /* above private channel */
632 /* NB: 2 is reserved */
633 #define IEEE80211_HTINFO_2NDCHAN_BELOW 0x03 /* below primary channel */
634 #define IEEE80211_HTINFO_TXWIDTH 0x04 /* tx channel width */
635 #define IEEE80211_HTINFO_TXWIDTH_20 0x00 /* 20MHz width */
636 #define IEEE80211_HTINFO_TXWIDTH_2040 0x04 /* any supported width */
637 #define IEEE80211_HTINFO_RIFSMODE 0x08 /* Reduced IFS (RIFS) use */
638 #define IEEE80211_HTINFO_RIFSMODE_PROH 0x00 /* RIFS use prohibited */
639 #define IEEE80211_HTINFO_RIFSMODE_PERM 0x08 /* RIFS use permitted */
640 #define IEEE80211_HTINFO_PMSPONLY 0x10 /* PSMP required to associate */
641 #define IEEE80211_HTINFO_SIGRAN 0xe0 /* shortest Service Interval */
642 #define IEEE80211_HTINFO_SIGRAN_S 5
643 #define IEEE80211_HTINFO_SIGRAN_5 0x00 /* 5 ms */
647 #define IEEE80211_HTINFO_OPMODE 0x03 /* operating mode */
648 #define IEEE80211_HTINFO_OPMODE_S 0
649 #define IEEE80211_HTINFO_OPMODE_PURE 0x00 /* no protection */
650 #define IEEE80211_HTINFO_OPMODE_PROTOPT 0x01 /* protection optional */
651 #define IEEE80211_HTINFO_OPMODE_HT20PR 0x02 /* protection for HT20 sta's */
652 #define IEEE80211_HTINFO_OPMODE_MIXED 0x03 /* protection for legacy sta's*/
653 #define IEEE80211_HTINFO_NONGF_PRESENT 0x04 /* non-GF sta's present */
654 #define IEEE80211_HTINFO_TXBL 0x08 /* transmit burst limit */
655 #define IEEE80211_HTINFO_NONHT_PRESENT 0x10 /* non-HT sta's present */
656 /* bits 5-15 reserved */
659 #define IEEE80211_HTINFO_2NDARYBEACON 0x01
660 #define IEEE80211_HTINFO_LSIGTXOPPROT 0x02
661 #define IEEE80211_HTINFO_PCO_ACTIVE 0x04
662 #define IEEE80211_HTINFO_40MHZPHASE 0x08
665 #define IEEE80211_HTINFO_BASIC_STBCMCS 0x7f
666 #define IEEE80211_HTINFO_BASIC_STBCMCS_S 0
667 #define IEEE80211_HTINFO_DUALPROTECTED 0x80
670 * Management information element payloads.
674 IEEE80211_ELEMID_SSID = 0,
675 IEEE80211_ELEMID_RATES = 1,
676 IEEE80211_ELEMID_FHPARMS = 2,
677 IEEE80211_ELEMID_DSPARMS = 3,
678 IEEE80211_ELEMID_CFPARMS = 4,
679 IEEE80211_ELEMID_TIM = 5,
680 IEEE80211_ELEMID_IBSSPARMS = 6,
681 IEEE80211_ELEMID_COUNTRY = 7,
682 IEEE80211_ELEMID_CHALLENGE = 16,
683 /* 17-31 reserved for challenge text extension */
684 IEEE80211_ELEMID_PWRCNSTR = 32,
685 IEEE80211_ELEMID_PWRCAP = 33,
686 IEEE80211_ELEMID_TPCREQ = 34,
687 IEEE80211_ELEMID_TPCREP = 35,
688 IEEE80211_ELEMID_SUPPCHAN = 36,
689 IEEE80211_ELEMID_CHANSWITCHANN = 37,
690 IEEE80211_ELEMID_MEASREQ = 38,
691 IEEE80211_ELEMID_MEASREP = 39,
692 IEEE80211_ELEMID_QUIET = 40,
693 IEEE80211_ELEMID_IBSSDFS = 41,
694 IEEE80211_ELEMID_ERP = 42,
695 IEEE80211_ELEMID_HTCAP = 45,
696 IEEE80211_ELEMID_RSN = 48,
697 IEEE80211_ELEMID_XRATES = 50,
698 IEEE80211_ELEMID_HTINFO = 61,
699 IEEE80211_ELEMID_TPC = 150,
700 IEEE80211_ELEMID_CCKM = 156,
701 IEEE80211_ELEMID_VENDOR = 221, /* vendor private */
704 struct ieee80211_tim_ie {
705 uint8_t tim_ie; /* IEEE80211_ELEMID_TIM */
707 uint8_t tim_count; /* DTIM count */
708 uint8_t tim_period; /* DTIM period */
709 uint8_t tim_bitctl; /* bitmap control */
710 uint8_t tim_bitmap[1]; /* variable-length bitmap */
713 struct ieee80211_country_ie {
714 uint8_t ie; /* IEEE80211_ELEMID_COUNTRY */
716 uint8_t cc[3]; /* ISO CC+(I)ndoor/(O)utdoor */
718 uint8_t schan; /* starting channel */
719 uint8_t nchan; /* number channels */
720 uint8_t maxtxpwr; /* tx power cap */
721 } __packed band[1]; /* sub bands (NB: var size) */
724 #define IEEE80211_COUNTRY_MAX_BANDS 84 /* max possible bands */
725 #define IEEE80211_COUNTRY_MAX_SIZE \
726 (sizeof(struct ieee80211_country_ie) + 3*(IEEE80211_COUNTRY_MAX_BANDS-1))
729 * 802.11h Channel Switch Announcement (CSA).
731 struct ieee80211_csa_ie {
732 uint8_t csa_ie; /* IEEE80211_ELEMID_CHANSWITCHANN */
734 uint8_t csa_mode; /* Channel Switch Mode */
735 uint8_t csa_newchan; /* New Channel Number */
736 uint8_t csa_count; /* Channel Switch Count */
739 /* rate set entries are in .5 Mb/s units, and potentially marked as basic */
740 #define IEEE80211_RATE_BASIC 0x80
741 #define IEEE80211_RATE_VAL 0x7f
743 /* EPR information element flags */
744 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01
745 #define IEEE80211_ERP_USE_PROTECTION 0x02
746 #define IEEE80211_ERP_LONG_PREAMBLE 0x04
748 #define IEEE80211_ERP_BITS \
749 "\20\1NON_ERP_PRESENT\2USE_PROTECTION\3LONG_PREAMBLE"
751 #define ATH_OUI 0x7f0300 /* Atheros OUI */
752 #define ATH_OUI_TYPE 0x01 /* Atheros protocol ie */
754 /* NB: Atheros allocated the OUI for this purpose ~2005 but beware ... */
755 #define TDMA_OUI ATH_OUI
756 #define TDMA_OUI_TYPE 0x02 /* TDMA protocol ie */
758 #define BCM_OUI 0x4c9000 /* Broadcom OUI */
759 #define BCM_OUI_HTCAP 51 /* pre-draft HTCAP ie */
760 #define BCM_OUI_HTINFO 52 /* pre-draft HTINFO ie */
762 #define WPA_OUI 0xf25000
763 #define WPA_OUI_TYPE 0x01
764 #define WPA_VERSION 1 /* current supported version */
766 #define WPA_CSE_NULL 0x00
767 #define WPA_CSE_WEP40 0x01
768 #define WPA_CSE_TKIP 0x02
769 #define WPA_CSE_CCMP 0x04
770 #define WPA_CSE_WEP104 0x05
772 #define WPA_ASE_NONE 0x00
773 #define WPA_ASE_8021X_UNSPEC 0x01
774 #define WPA_ASE_8021X_PSK 0x02
776 #define WPS_OUI_TYPE 0x04
778 #define RSN_OUI 0xac0f00
779 #define RSN_VERSION 1 /* current supported version */
781 #define RSN_CSE_NULL 0x00
782 #define RSN_CSE_WEP40 0x01
783 #define RSN_CSE_TKIP 0x02
784 #define RSN_CSE_WRAP 0x03
785 #define RSN_CSE_CCMP 0x04
786 #define RSN_CSE_WEP104 0x05
788 #define RSN_ASE_NONE 0x00
789 #define RSN_ASE_8021X_UNSPEC 0x01
790 #define RSN_ASE_8021X_PSK 0x02
792 #define RSN_CAP_PREAUTH 0x01
794 #define WME_OUI 0xf25000
795 #define WME_OUI_TYPE 0x02
796 #define WME_INFO_OUI_SUBTYPE 0x00
797 #define WME_PARAM_OUI_SUBTYPE 0x01
798 #define WME_VERSION 1
800 /* WME stream classes */
801 #define WME_AC_BE 0 /* best effort */
802 #define WME_AC_BK 1 /* background */
803 #define WME_AC_VI 2 /* video */
804 #define WME_AC_VO 3 /* voice */
807 * AUTH management packets
814 * octet chal.text[253] NB: 1-253 bytes
817 /* challenge length for shared key auth */
818 #define IEEE80211_CHALLENGE_LEN 128
820 #define IEEE80211_AUTH_ALG_OPEN 0x0000
821 #define IEEE80211_AUTH_ALG_SHARED 0x0001
822 #define IEEE80211_AUTH_ALG_LEAP 0x0080
825 IEEE80211_AUTH_OPEN_REQUEST = 1,
826 IEEE80211_AUTH_OPEN_RESPONSE = 2,
830 IEEE80211_AUTH_SHARED_REQUEST = 1,
831 IEEE80211_AUTH_SHARED_CHALLENGE = 2,
832 IEEE80211_AUTH_SHARED_RESPONSE = 3,
833 IEEE80211_AUTH_SHARED_PASS = 4,
837 * Reason and status codes.
839 * Reason codes are used in management frames to indicate why an
840 * action took place (e.g. on disassociation). Status codes are
841 * used in management frames to indicate the result of an operation.
843 * Unlisted codes are reserved
847 IEEE80211_REASON_UNSPECIFIED = 1,
848 IEEE80211_REASON_AUTH_EXPIRE = 2,
849 IEEE80211_REASON_AUTH_LEAVE = 3,
850 IEEE80211_REASON_ASSOC_EXPIRE = 4,
851 IEEE80211_REASON_ASSOC_TOOMANY = 5,
852 IEEE80211_REASON_NOT_AUTHED = 6,
853 IEEE80211_REASON_NOT_ASSOCED = 7,
854 IEEE80211_REASON_ASSOC_LEAVE = 8,
855 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9,
856 IEEE80211_REASON_DISASSOC_PWRCAP_BAD = 10, /* 11h */
857 IEEE80211_REASON_DISASSOC_SUPCHAN_BAD = 11, /* 11h */
858 IEEE80211_REASON_IE_INVALID = 13, /* 11i */
859 IEEE80211_REASON_MIC_FAILURE = 14, /* 11i */
860 IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, /* 11i */
861 IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16, /* 11i */
862 IEEE80211_REASON_IE_IN_4WAY_DIFFERS = 17, /* 11i */
863 IEEE80211_REASON_GROUP_CIPHER_INVALID = 18, /* 11i */
864 IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19, /* 11i */
865 IEEE80211_REASON_AKMP_INVALID = 20, /* 11i */
866 IEEE80211_REASON_UNSUPP_RSN_IE_VERSION = 21, /* 11i */
867 IEEE80211_REASON_INVALID_RSN_IE_CAP = 22, /* 11i */
868 IEEE80211_REASON_802_1X_AUTH_FAILED = 23, /* 11i */
869 IEEE80211_REASON_CIPHER_SUITE_REJECTED = 24, /* 11i */
870 IEEE80211_REASON_UNSPECIFIED_QOS = 32, /* 11e */
871 IEEE80211_REASON_INSUFFICIENT_BW = 33, /* 11e */
872 IEEE80211_REASON_TOOMANY_FRAMES = 34, /* 11e */
873 IEEE80211_REASON_OUTSIDE_TXOP = 35, /* 11e */
874 IEEE80211_REASON_LEAVING_QBSS = 36, /* 11e */
875 IEEE80211_REASON_BAD_MECHANISM = 37, /* 11e */
876 IEEE80211_REASON_SETUP_NEEDED = 38, /* 11e */
877 IEEE80211_REASON_TIMEOUT = 39, /* 11e */
879 IEEE80211_STATUS_SUCCESS = 0,
880 IEEE80211_STATUS_UNSPECIFIED = 1,
881 IEEE80211_STATUS_CAPINFO = 10,
882 IEEE80211_STATUS_NOT_ASSOCED = 11,
883 IEEE80211_STATUS_OTHER = 12,
884 IEEE80211_STATUS_ALG = 13,
885 IEEE80211_STATUS_SEQUENCE = 14,
886 IEEE80211_STATUS_CHALLENGE = 15,
887 IEEE80211_STATUS_TIMEOUT = 16,
888 IEEE80211_STATUS_TOOMANY = 17,
889 IEEE80211_STATUS_BASIC_RATE = 18,
890 IEEE80211_STATUS_SP_REQUIRED = 19, /* 11b */
891 IEEE80211_STATUS_PBCC_REQUIRED = 20, /* 11b */
892 IEEE80211_STATUS_CA_REQUIRED = 21, /* 11b */
893 IEEE80211_STATUS_SPECMGMT_REQUIRED = 22, /* 11h */
894 IEEE80211_STATUS_PWRCAP_REQUIRED = 23, /* 11h */
895 IEEE80211_STATUS_SUPCHAN_REQUIRED = 24, /* 11h */
896 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, /* 11g */
897 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, /* 11g */
898 IEEE80211_STATUS_INVALID_IE = 40, /* 11i */
899 IEEE80211_STATUS_GROUP_CIPHER_INVALID = 41, /* 11i */
900 IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42, /* 11i */
901 IEEE80211_STATUS_AKMP_INVALID = 43, /* 11i */
902 IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION = 44, /* 11i */
903 IEEE80211_STATUS_INVALID_RSN_IE_CAP = 45, /* 11i */
904 IEEE80211_STATUS_CIPHER_SUITE_REJECTED = 46, /* 11i */
907 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */
908 #define IEEE80211_WEP_IVLEN 3 /* 24bit */
909 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */
910 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */
911 #define IEEE80211_WEP_TOTLEN (IEEE80211_WEP_IVLEN + \
912 IEEE80211_WEP_KIDLEN + \
913 IEEE80211_WEP_CRCLEN)
914 #define IEEE80211_WEP_NKID 4 /* number of key ids */
917 * 802.11i defines an extended IV for use with non-WEP ciphers.
918 * When the EXTIV bit is set in the key id byte an additional
919 * 4 bytes immediately follow the IV for TKIP. For CCMP the
920 * EXTIV bit is likewise set but the 8 bytes represent the
921 * CCMP header rather than IV+extended-IV.
923 #define IEEE80211_WEP_EXTIV 0x20
924 #define IEEE80211_WEP_EXTIVLEN 4 /* extended IV length */
925 #define IEEE80211_WEP_MICLEN 8 /* trailing MIC */
927 #define IEEE80211_CRC_LEN 4
930 * Maximum acceptable MTU is:
931 * IEEE80211_MAX_LEN - WEP overhead - CRC -
932 * QoS overhead - RSN/WPA overhead
933 * Min is arbitrarily chosen > IEEE80211_MIN_LEN. The default
934 * mtu is Ethernet-compatible; it's set by ether_ifattach.
936 #define IEEE80211_MTU_MAX 2290
937 #define IEEE80211_MTU_MIN 32
939 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \
940 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
941 #define IEEE80211_ACK_LEN \
942 (sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
943 #define IEEE80211_MIN_LEN \
944 (sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
947 * The 802.11 spec says at most 2007 stations may be
948 * associated at once. For most AP's this is way more
949 * than is feasible so we use a default of IEEE80211_AID_DEF.
950 * This number may be overridden by the driver and/or by
951 * user configuration but may not be less than IEEE80211_AID_MIN
952 * (see _ieee80211.h for implementation-specific settings).
954 #define IEEE80211_AID_MAX 2007
956 #define IEEE80211_AID(b) ((b) &~ 0xc000)
959 * RTS frame length parameters. The default is specified in
960 * the 802.11 spec as 512; we treat it as implementation-dependent
961 * so it's defined in ieee80211_var.h. The max may be wrong
964 #define IEEE80211_RTS_MIN 1
965 #define IEEE80211_RTS_MAX 2346
968 * TX fragmentation parameters. As above for RTS, we treat
969 * default as implementation-dependent so define it elsewhere.
971 #define IEEE80211_FRAG_MIN 256
972 #define IEEE80211_FRAG_MAX 2346
975 * Beacon interval (TU's). Min+max come from WiFi requirements.
976 * As above, we treat default as implementation-dependent so
977 * define it elsewhere.
979 #define IEEE80211_BINTVAL_MAX 1000 /* max beacon interval (TU's) */
980 #define IEEE80211_BINTVAL_MIN 25 /* min beacon interval (TU's) */
983 * DTIM period (beacons). Min+max are not really defined
984 * by the protocol but we want them publicly visible so
987 #define IEEE80211_DTIM_MAX 15 /* max DTIM period */
988 #define IEEE80211_DTIM_MIN 1 /* min DTIM period */
991 * Beacon miss threshold (beacons). As for DTIM, we define
992 * them here to be publicly visible. Note the max may be
993 * clamped depending on device capabilities.
995 #define IEEE80211_HWBMISS_MIN 1
996 #define IEEE80211_HWBMISS_MAX 255
999 * 802.11 frame duration definitions.
1002 struct ieee80211_duration {
1004 uint16_t d_data_dur;
1005 uint16_t d_plcp_len;
1006 uint8_t d_residue; /* unused octets in time slot */
1009 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */
1010 #define IEEE80211_DUR_TU 1024
1012 /* IEEE 802.11b durations for DSSS PHY in microseconds */
1013 #define IEEE80211_DUR_DS_LONG_PREAMBLE 144
1014 #define IEEE80211_DUR_DS_SHORT_PREAMBLE 72
1016 #define IEEE80211_DUR_DS_SLOW_PLCPHDR 48
1017 #define IEEE80211_DUR_DS_FAST_PLCPHDR 24
1018 #define IEEE80211_DUR_DS_SLOW_ACK 112
1019 #define IEEE80211_DUR_DS_FAST_ACK 56
1020 #define IEEE80211_DUR_DS_SLOW_CTS 112
1021 #define IEEE80211_DUR_DS_FAST_CTS 56
1023 #define IEEE80211_DUR_DS_SLOT 20
1024 #define IEEE80211_DUR_DS_SIFS 10
1025 #define IEEE80211_DUR_DS_PIFS (IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
1026 #define IEEE80211_DUR_DS_DIFS (IEEE80211_DUR_DS_SIFS + \
1027 2 * IEEE80211_DUR_DS_SLOT)
1028 #define IEEE80211_DUR_DS_EIFS (IEEE80211_DUR_DS_SIFS + \
1029 IEEE80211_DUR_DS_SLOW_ACK + \
1030 IEEE80211_DUR_DS_LONG_PREAMBLE + \
1031 IEEE80211_DUR_DS_SLOW_PLCPHDR + \
1034 #endif /* _NET80211_IEEE80211_H_ */