xref: /freebsd/sys/net80211/ieee80211.h (revision 271171e0)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2001 Atsushi Onoe
5  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 #ifndef _NET80211_IEEE80211_H_
31 #define _NET80211_IEEE80211_H_
32 
33 /*
34  * 802.11 protocol definitions.
35  */
36 
37 #define	IEEE80211_ADDR_LEN	6		/* size of 802.11 address */
38 /* is 802.11 address multicast/broadcast? */
39 #define	IEEE80211_IS_MULTICAST(_a)	(*(_a) & 0x01)
40 
41 #ifdef _KERNEL
42 extern const uint8_t ieee80211broadcastaddr[];
43 #endif
44 
45 typedef uint16_t ieee80211_seq;
46 
47 /* IEEE 802.11 PLCP header */
48 struct ieee80211_plcp_hdr {
49 	uint16_t	i_sfd;
50 	uint8_t		i_signal;
51 	uint8_t		i_service;
52 	uint16_t	i_length;
53 	uint16_t	i_crc;
54 } __packed;
55 
56 #define IEEE80211_PLCP_SFD      0xF3A0
57 #define IEEE80211_PLCP_SERVICE  0x00
58 #define IEEE80211_PLCP_SERVICE_LOCKED	0x04
59 #define IEEE80211_PLCL_SERVICE_PBCC	0x08
60 #define IEEE80211_PLCP_SERVICE_LENEXT5	0x20
61 #define IEEE80211_PLCP_SERVICE_LENEXT6	0x40
62 #define IEEE80211_PLCP_SERVICE_LENEXT7	0x80
63 
64 /*
65  * generic definitions for IEEE 802.11 frames
66  */
67 struct ieee80211_frame {
68 	uint8_t		i_fc[2];
69 	uint8_t		i_dur[2];
70 	uint8_t		i_addr1[IEEE80211_ADDR_LEN];
71 	uint8_t		i_addr2[IEEE80211_ADDR_LEN];
72 	uint8_t		i_addr3[IEEE80211_ADDR_LEN];
73 	uint8_t		i_seq[2];
74 	/* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
75 	/* see below */
76 } __packed;
77 
78 struct ieee80211_qosframe {
79 	uint8_t		i_fc[2];
80 	uint8_t		i_dur[2];
81 	uint8_t		i_addr1[IEEE80211_ADDR_LEN];
82 	uint8_t		i_addr2[IEEE80211_ADDR_LEN];
83 	uint8_t		i_addr3[IEEE80211_ADDR_LEN];
84 	uint8_t		i_seq[2];
85 	uint8_t		i_qos[2];
86 	/* possibly followed by addr4[IEEE80211_ADDR_LEN]; */
87 	/* see below */
88 } __packed;
89 
90 struct ieee80211_qoscntl {
91 	uint8_t		i_qos[2];
92 };
93 
94 struct ieee80211_frame_addr4 {
95 	uint8_t		i_fc[2];
96 	uint8_t		i_dur[2];
97 	uint8_t		i_addr1[IEEE80211_ADDR_LEN];
98 	uint8_t		i_addr2[IEEE80211_ADDR_LEN];
99 	uint8_t		i_addr3[IEEE80211_ADDR_LEN];
100 	uint8_t		i_seq[2];
101 	uint8_t		i_addr4[IEEE80211_ADDR_LEN];
102 } __packed;
103 
104 struct ieee80211_qosframe_addr4 {
105 	uint8_t		i_fc[2];
106 	uint8_t		i_dur[2];
107 	uint8_t		i_addr1[IEEE80211_ADDR_LEN];
108 	uint8_t		i_addr2[IEEE80211_ADDR_LEN];
109 	uint8_t		i_addr3[IEEE80211_ADDR_LEN];
110 	uint8_t		i_seq[2];
111 	uint8_t		i_addr4[IEEE80211_ADDR_LEN];
112 	uint8_t		i_qos[2];
113 } __packed;
114 
115 #define	IEEE80211_FC0_VERSION_MASK		0x03
116 #define	IEEE80211_FC0_VERSION_SHIFT		0
117 #define	IEEE80211_FC0_VERSION_0			0x00
118 #define	IEEE80211_FC0_TYPE_MASK			0x0c
119 #define	IEEE80211_FC0_TYPE_SHIFT		2
120 #define	IEEE80211_FC0_TYPE_MGT			0x00
121 #define	IEEE80211_FC0_TYPE_CTL			0x04
122 #define	IEEE80211_FC0_TYPE_DATA			0x08
123 
124 #define	IEEE80211_FC0_SUBTYPE_MASK		0xf0
125 #define	IEEE80211_FC0_SUBTYPE_SHIFT		4
126 /* for TYPE_MGT */
127 #define	IEEE80211_FC0_SUBTYPE_ASSOC_REQ		0x00
128 #define	IEEE80211_FC0_SUBTYPE_ASSOC_RESP	0x10
129 #define	IEEE80211_FC0_SUBTYPE_REASSOC_REQ	0x20
130 #define	IEEE80211_FC0_SUBTYPE_REASSOC_RESP	0x30
131 #define	IEEE80211_FC0_SUBTYPE_PROBE_REQ		0x40
132 #define	IEEE80211_FC0_SUBTYPE_PROBE_RESP	0x50
133 #define	IEEE80211_FC0_SUBTYPE_TIMING_ADV	0x60
134 #define	IEEE80211_FC0_SUBTYPE_BEACON		0x80
135 #define	IEEE80211_FC0_SUBTYPE_ATIM		0x90
136 #define	IEEE80211_FC0_SUBTYPE_DISASSOC		0xa0
137 #define	IEEE80211_FC0_SUBTYPE_AUTH		0xb0
138 #define	IEEE80211_FC0_SUBTYPE_DEAUTH		0xc0
139 #define	IEEE80211_FC0_SUBTYPE_ACTION		0xd0
140 #define	IEEE80211_FC0_SUBTYPE_ACTION_NOACK	0xe0
141 /* for TYPE_CTL */
142 #define	IEEE80211_FC0_SUBTYPE_TRIGGER		0x20
143 #define	IEEE80211_FC0_SUBTYPE_CONTROL_WRAP	0x70
144 #define	IEEE80211_FC0_SUBTYPE_BAR		0x80
145 #define	IEEE80211_FC0_SUBTYPE_BA		0x90
146 #define	IEEE80211_FC0_SUBTYPE_PS_POLL		0xa0
147 #define	IEEE80211_FC0_SUBTYPE_RTS		0xb0
148 #define	IEEE80211_FC0_SUBTYPE_CTS		0xc0
149 #define	IEEE80211_FC0_SUBTYPE_ACK		0xd0
150 #define	IEEE80211_FC0_SUBTYPE_CF_END		0xe0
151 #define	IEEE80211_FC0_SUBTYPE_CF_END_ACK	0xf0
152 /* for TYPE_DATA (bit combination) */
153 #define	IEEE80211_FC0_SUBTYPE_DATA		0x00
154 #define	IEEE80211_FC0_SUBTYPE_CF_ACK		0x10
155 #define	IEEE80211_FC0_SUBTYPE_CF_POLL		0x20
156 #define	IEEE80211_FC0_SUBTYPE_CF_ACPL		0x30
157 #define	IEEE80211_FC0_SUBTYPE_NODATA		0x40
158 #define	IEEE80211_FC0_SUBTYPE_CFACK		0x50
159 #define	IEEE80211_FC0_SUBTYPE_CFPOLL		0x60
160 #define	IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK	0x70
161 #define	IEEE80211_FC0_SUBTYPE_QOS		0x80
162 #define	IEEE80211_FC0_SUBTYPE_QOS_CFACK		0x90
163 #define	IEEE80211_FC0_SUBTYPE_QOS_CFPOLL	0xa0
164 #define	IEEE80211_FC0_SUBTYPE_QOS_CFACKPOLL	0xb0
165 #define	IEEE80211_FC0_SUBTYPE_QOS_NULL		0xc0
166 
167 #define	IEEE80211_IS_MGMT(wh)					\
168 	(!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)		\
169 	    == IEEE80211_FC0_TYPE_MGT))
170 #define	IEEE80211_IS_CTL(wh)					\
171 	(!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)		\
172 	    == IEEE80211_FC0_TYPE_CTL))
173 #define	IEEE80211_IS_DATA(wh)					\
174 	(!! (((wh)->i_fc[0] & IEEE80211_FC0_TYPE_MASK)		\
175 	    == IEEE80211_FC0_TYPE_DATA))
176 
177 #define	IEEE80211_FC0_QOSDATA \
178 	(IEEE80211_FC0_TYPE_DATA|IEEE80211_FC0_SUBTYPE_QOS|IEEE80211_FC0_VERSION_0)
179 
180 #define	IEEE80211_IS_QOSDATA(wh) \
181 	((wh)->i_fc[0] == IEEE80211_FC0_QOSDATA)
182 
183 #define	IEEE80211_FC1_DIR_MASK			0x03
184 #define	IEEE80211_FC1_DIR_NODS			0x00	/* STA->STA */
185 #define	IEEE80211_FC1_DIR_TODS			0x01	/* STA->AP  */
186 #define	IEEE80211_FC1_DIR_FROMDS		0x02	/* AP ->STA */
187 #define	IEEE80211_FC1_DIR_DSTODS		0x03	/* AP ->AP  */
188 
189 #define	IEEE80211_IS_DSTODS(wh) \
190 	(((wh)->i_fc[1] & IEEE80211_FC1_DIR_MASK) == IEEE80211_FC1_DIR_DSTODS)
191 
192 #define	IEEE80211_FC1_MORE_FRAG			0x04
193 #define	IEEE80211_FC1_RETRY			0x08
194 #define	IEEE80211_FC1_PWR_MGT			0x10
195 #define	IEEE80211_FC1_MORE_DATA			0x20
196 #define	IEEE80211_FC1_PROTECTED			0x40
197 #define	IEEE80211_FC1_ORDER			0x80
198 
199 #define IEEE80211_HAS_SEQ(type, subtype) \
200 	((type) != IEEE80211_FC0_TYPE_CTL && \
201 	!((type) == IEEE80211_FC0_TYPE_DATA && \
202 	 ((subtype) & IEEE80211_FC0_SUBTYPE_QOS_NULL) == \
203 		      IEEE80211_FC0_SUBTYPE_QOS_NULL))
204 #define	IEEE80211_SEQ_FRAG_MASK			0x000f
205 #define	IEEE80211_SEQ_FRAG_SHIFT		0
206 #define	IEEE80211_SEQ_SEQ_MASK			0xfff0
207 #define	IEEE80211_SEQ_SEQ_SHIFT			4
208 #define	IEEE80211_SEQ_RANGE			4096
209 
210 #define	IEEE80211_SEQ_ADD(seq, incr) \
211 	(((seq) + (incr)) & (IEEE80211_SEQ_RANGE-1))
212 #define	IEEE80211_SEQ_INC(seq)	IEEE80211_SEQ_ADD(seq,1)
213 #define	IEEE80211_SEQ_SUB(a, b) \
214 	(((a) + IEEE80211_SEQ_RANGE - (b)) & (IEEE80211_SEQ_RANGE-1))
215 
216 #define	IEEE80211_SEQ_BA_RANGE			2048	/* 2^11 */
217 #define	IEEE80211_SEQ_BA_BEFORE(a, b) \
218 	(IEEE80211_SEQ_SUB(b, a+1) < IEEE80211_SEQ_BA_RANGE-1)
219 
220 #define	IEEE80211_NWID_LEN			32
221 #define	IEEE80211_MESHID_LEN			32
222 
223 #define	IEEE80211_QOS_CTL_LEN			2
224 
225 #define	IEEE80211_QOS_TXOP			0x00ff
226 /* bit 8 is reserved */
227 #define	IEEE80211_QOS_AMSDU			0x80
228 #define	IEEE80211_QOS_AMSDU_S			7
229 #define	IEEE80211_QOS_ACKPOLICY			0x60
230 #define	IEEE80211_QOS_ACKPOLICY_S		5
231 #define	IEEE80211_QOS_ACKPOLICY_NOACK		0x20	/* No ACK required */
232 #define	IEEE80211_QOS_ACKPOLICY_BA		0x60	/* Block ACK */
233 #define	IEEE80211_QOS_EOSP			0x10	/* EndOfService Period*/
234 #define	IEEE80211_QOS_EOSP_S			4
235 #define	IEEE80211_QOS_TID			0x0f
236 /* qos[1] byte used for all frames sent by mesh STAs in a mesh BSS */
237 #define IEEE80211_QOS_MC			0x01	/* Mesh control */
238 /* Mesh power save level*/
239 #define IEEE80211_QOS_MESH_PSL			0x02
240 /* Mesh Receiver Service Period Initiated */
241 #define IEEE80211_QOS_RSPI			0x04
242 /* bits 11 to 15 reserved */
243 
244 /* does frame have QoS sequence control data */
245 #define	IEEE80211_QOS_HAS_SEQ(wh) \
246 	(((wh)->i_fc[0] & \
247 	  (IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == \
248 	  (IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS))
249 
250 /*
251  * WME/802.11e information element.
252  */
253 struct ieee80211_wme_info {
254 	uint8_t		wme_id;		/* IEEE80211_ELEMID_VENDOR */
255 	uint8_t		wme_len;	/* length in bytes */
256 	uint8_t		wme_oui[3];	/* 0x00, 0x50, 0xf2 */
257 	uint8_t		wme_type;	/* OUI type */
258 	uint8_t		wme_subtype;	/* OUI subtype */
259 	uint8_t		wme_version;	/* spec revision */
260 	uint8_t		wme_info;	/* QoS info */
261 } __packed;
262 
263 /*
264  * WME/802.11e Tspec Element
265  */
266 struct ieee80211_wme_tspec {
267 	uint8_t		ts_id;
268 	uint8_t		ts_len;
269 	uint8_t		ts_oui[3];
270 	uint8_t		ts_oui_type;
271 	uint8_t		ts_oui_subtype;
272 	uint8_t		ts_version;
273 	uint8_t		ts_tsinfo[3];
274 	uint8_t		ts_nom_msdu[2];
275 	uint8_t		ts_max_msdu[2];
276 	uint8_t		ts_min_svc[4];
277 	uint8_t		ts_max_svc[4];
278 	uint8_t		ts_inactv_intv[4];
279 	uint8_t		ts_susp_intv[4];
280 	uint8_t		ts_start_svc[4];
281 	uint8_t		ts_min_rate[4];
282 	uint8_t		ts_mean_rate[4];
283 	uint8_t		ts_max_burst[4];
284 	uint8_t		ts_min_phy[4];
285 	uint8_t		ts_peak_rate[4];
286 	uint8_t		ts_delay[4];
287 	uint8_t		ts_surplus[2];
288 	uint8_t		ts_medium_time[2];
289 } __packed;
290 
291 /*
292  * WME AC parameter field
293  */
294 struct ieee80211_wme_acparams {
295 	uint8_t		acp_aci_aifsn;
296 	uint8_t		acp_logcwminmax;
297 	uint16_t	acp_txop;
298 } __packed;
299 
300 #define WME_NUM_AC		4	/* 4 AC categories */
301 #define	WME_NUM_TID		16	/* 16 tids */
302 
303 #define WME_PARAM_ACI		0x60	/* Mask for ACI field */
304 #define WME_PARAM_ACI_S		5	/* Shift for ACI field */
305 #define WME_PARAM_ACM		0x10	/* Mask for ACM bit */
306 #define WME_PARAM_ACM_S		4	/* Shift for ACM bit */
307 #define WME_PARAM_AIFSN		0x0f	/* Mask for aifsn field */
308 #define WME_PARAM_AIFSN_S	0	/* Shift for aifsn field */
309 #define WME_PARAM_LOGCWMIN	0x0f	/* Mask for CwMin field (in log) */
310 #define WME_PARAM_LOGCWMIN_S	0	/* Shift for CwMin field */
311 #define WME_PARAM_LOGCWMAX	0xf0	/* Mask for CwMax field (in log) */
312 #define WME_PARAM_LOGCWMAX_S	4	/* Shift for CwMax field */
313 
314 #define WME_AC_TO_TID(_ac) (       \
315 	((_ac) == WME_AC_VO) ? 6 : \
316 	((_ac) == WME_AC_VI) ? 5 : \
317 	((_ac) == WME_AC_BK) ? 1 : \
318 	0)
319 
320 #define TID_TO_WME_AC(_tid) (      \
321 	((_tid) == 0 || (_tid) == 3) ? WME_AC_BE : \
322 	((_tid) < 3) ? WME_AC_BK : \
323 	((_tid) < 6) ? WME_AC_VI : \
324 	WME_AC_VO)
325 
326 /*
327  * WME Parameter Element
328  */
329 struct ieee80211_wme_param {
330 	uint8_t		param_id;
331 	uint8_t		param_len;
332 	uint8_t		param_oui[3];
333 	uint8_t		param_oui_type;
334 	uint8_t		param_oui_subtype;
335 	uint8_t		param_version;
336 	uint8_t		param_qosInfo;
337 #define	WME_QOSINFO_COUNT	0x0f	/* Mask for param count field */
338 	uint8_t		param_reserved;
339 	struct ieee80211_wme_acparams	params_acParams[WME_NUM_AC];
340 } __packed;
341 
342 /*
343  * WME U-APSD qos info field defines
344  */
345 #define	WME_CAPINFO_UAPSD_EN                    0x00000080
346 #define	WME_CAPINFO_UAPSD_VO                    0x00000001
347 #define	WME_CAPINFO_UAPSD_VI                    0x00000002
348 #define	WME_CAPINFO_UAPSD_BK                    0x00000004
349 #define	WME_CAPINFO_UAPSD_BE                    0x00000008
350 #define	WME_CAPINFO_UAPSD_ACFLAGS_SHIFT         0
351 #define	WME_CAPINFO_UAPSD_ACFLAGS_MASK          0xF
352 #define	WME_CAPINFO_UAPSD_MAXSP_SHIFT           5
353 #define	WME_CAPINFO_UAPSD_MAXSP_MASK            0x3
354 #define	WME_CAPINFO_IE_OFFSET                   8
355 #define	WME_UAPSD_MAXSP(_qosinfo)				\
356 	    (((_qosinfo) >> WME_CAPINFO_UAPSD_MAXSP_SHIFT) &	\
357 	    WME_CAPINFO_UAPSD_MAXSP_MASK)
358 #define	WME_UAPSD_AC_ENABLED(_ac, _qosinfo)			\
359 	    ((1 << (3 - (_ac))) & (				\
360 	    ((_qosinfo) >> WME_CAPINFO_UAPSD_ACFLAGS_SHIFT) &	\
361 	    WME_CAPINFO_UAPSD_ACFLAGS_MASK))
362 
363 /*
364  * Management Notification Frame
365  */
366 struct ieee80211_mnf {
367 	uint8_t		mnf_category;
368 	uint8_t		mnf_action;
369 	uint8_t		mnf_dialog;
370 	uint8_t		mnf_status;
371 } __packed;
372 #define	MNF_SETUP_REQ	0
373 #define	MNF_SETUP_RESP	1
374 #define	MNF_TEARDOWN	2
375 
376 /*
377  * 802.11n Management Action Frames
378  */
379 /* generic frame format */
380 struct ieee80211_action {
381 	uint8_t		ia_category;
382 	uint8_t		ia_action;
383 } __packed;
384 
385 #define	IEEE80211_ACTION_CAT_SM		0	/* Spectrum Management */
386 #define	IEEE80211_ACTION_CAT_QOS	1	/* QoS */
387 #define	IEEE80211_ACTION_CAT_DLS	2	/* DLS */
388 #define	IEEE80211_ACTION_CAT_BA		3	/* BA */
389 #define	IEEE80211_ACTION_CAT_HT		7	/* HT */
390 #define	IEEE80211_ACTION_CAT_MESH	13	/* Mesh */
391 #define	IEEE80211_ACTION_CAT_SELF_PROT	15	/* Self-protected */
392 /* 16 - 125 reserved */
393 #define	IEEE80211_ACTION_CAT_VHT	21
394 #define	IEEE80211_ACTION_CAT_VENDOR	127	/* Vendor Specific */
395 
396 #define	IEEE80211_ACTION_HT_TXCHWIDTH	0	/* recommended xmit chan width*/
397 #define	IEEE80211_ACTION_HT_MIMOPWRSAVE	1	/* MIMO power save */
398 
399 /* HT - recommended transmission channel width */
400 struct ieee80211_action_ht_txchwidth {
401 	struct ieee80211_action	at_header;
402 	uint8_t		at_chwidth;
403 } __packed;
404 
405 #define	IEEE80211_A_HT_TXCHWIDTH_20	0
406 #define	IEEE80211_A_HT_TXCHWIDTH_2040	1
407 
408 /* HT - MIMO Power Save (NB: D2.04) */
409 struct ieee80211_action_ht_mimopowersave {
410 	struct ieee80211_action am_header;
411 	uint8_t		am_control;
412 } __packed;
413 
414 #define	IEEE80211_A_HT_MIMOPWRSAVE_ENA		0x01	/* PS enabled */
415 #define	IEEE80211_A_HT_MIMOPWRSAVE_MODE		0x02
416 #define	IEEE80211_A_HT_MIMOPWRSAVE_MODE_S	1
417 #define	IEEE80211_A_HT_MIMOPWRSAVE_DYNAMIC	0x02	/* Dynamic Mode */
418 #define	IEEE80211_A_HT_MIMOPWRSAVE_STATIC	0x00	/* no SM packets */
419 /* bits 2-7 reserved */
420 
421 /* Block Ack actions */
422 #define IEEE80211_ACTION_BA_ADDBA_REQUEST       0   /* ADDBA request */
423 #define IEEE80211_ACTION_BA_ADDBA_RESPONSE      1   /* ADDBA response */
424 #define IEEE80211_ACTION_BA_DELBA	        2   /* DELBA */
425 
426 /* Block Ack Parameter Set */
427 #define	IEEE80211_BAPS_BUFSIZ	0xffc0		/* buffer size */
428 #define	IEEE80211_BAPS_BUFSIZ_S	6
429 #define	IEEE80211_BAPS_TID	0x003c		/* TID */
430 #define	IEEE80211_BAPS_TID_S	2
431 #define	IEEE80211_BAPS_POLICY	0x0002		/* block ack policy */
432 #define	IEEE80211_BAPS_POLICY_S	1
433 #define	IEEE80211_BAPS_AMSDU	0x0001		/* A-MSDU permitted */
434 #define	IEEE80211_BAPS_AMSDU_S	0
435 
436 #define	IEEE80211_BAPS_POLICY_DELAYED	(0<<IEEE80211_BAPS_POLICY_S)
437 #define	IEEE80211_BAPS_POLICY_IMMEDIATE	(1<<IEEE80211_BAPS_POLICY_S)
438 
439 /* Block Ack Sequence Control */
440 #define	IEEE80211_BASEQ_START	0xfff0		/* starting seqnum */
441 #define	IEEE80211_BASEQ_START_S	4
442 #define	IEEE80211_BASEQ_FRAG	0x000f		/* fragment number */
443 #define	IEEE80211_BASEQ_FRAG_S	0
444 
445 /* Delayed Block Ack Parameter Set */
446 #define	IEEE80211_DELBAPS_TID	0xf000		/* TID */
447 #define	IEEE80211_DELBAPS_TID_S	12
448 #define	IEEE80211_DELBAPS_INIT	0x0800		/* initiator */
449 #define	IEEE80211_DELBAPS_INIT_S 11
450 
451 /* BA - ADDBA request */
452 struct ieee80211_action_ba_addbarequest {
453 	struct ieee80211_action rq_header;
454 	uint8_t		rq_dialogtoken;
455 	uint16_t	rq_baparamset;
456 	uint16_t	rq_batimeout;		/* in TUs */
457 	uint16_t	rq_baseqctl;
458 } __packed;
459 
460 /* BA - ADDBA response */
461 struct ieee80211_action_ba_addbaresponse {
462 	struct ieee80211_action rs_header;
463 	uint8_t		rs_dialogtoken;
464 	uint16_t	rs_statuscode;
465 	uint16_t	rs_baparamset;
466 	uint16_t	rs_batimeout;		/* in TUs */
467 } __packed;
468 
469 /* BA - DELBA */
470 struct ieee80211_action_ba_delba {
471 	struct ieee80211_action dl_header;
472 	uint16_t	dl_baparamset;
473 	uint16_t	dl_reasoncode;
474 } __packed;
475 
476 /* BAR Control */
477 #define	IEEE80211_BAR_TID	0xf000		/* TID */
478 #define	IEEE80211_BAR_TID_S	12
479 #define	IEEE80211_BAR_COMP	0x0004		/* Compressed Bitmap */
480 #define	IEEE80211_BAR_MTID	0x0002		/* Multi-TID */
481 #define	IEEE80211_BAR_NOACK	0x0001		/* No-Ack policy */
482 
483 /* BAR Starting Sequence Control */
484 #define	IEEE80211_BAR_SEQ_START	0xfff0		/* starting seqnum */
485 #define	IEEE80211_BAR_SEQ_START_S	4
486 
487 struct ieee80211_ba_request {
488 	uint16_t	rq_barctl;
489 	uint16_t	rq_barseqctl;
490 } __packed;
491 
492 /*
493  * Control frames.
494  */
495 struct ieee80211_frame_min {
496 	uint8_t		i_fc[2];
497 	uint8_t		i_dur[2];
498 	uint8_t		i_addr1[IEEE80211_ADDR_LEN];
499 	uint8_t		i_addr2[IEEE80211_ADDR_LEN];
500 	/* FCS */
501 } __packed;
502 
503 struct ieee80211_frame_rts {
504 	uint8_t		i_fc[2];
505 	uint8_t		i_dur[2];
506 	uint8_t		i_ra[IEEE80211_ADDR_LEN];
507 	uint8_t		i_ta[IEEE80211_ADDR_LEN];
508 	/* FCS */
509 } __packed;
510 
511 struct ieee80211_frame_cts {
512 	uint8_t		i_fc[2];
513 	uint8_t		i_dur[2];
514 	uint8_t		i_ra[IEEE80211_ADDR_LEN];
515 	/* FCS */
516 } __packed;
517 
518 struct ieee80211_frame_ack {
519 	uint8_t		i_fc[2];
520 	uint8_t		i_dur[2];
521 	uint8_t		i_ra[IEEE80211_ADDR_LEN];
522 	/* FCS */
523 } __packed;
524 
525 struct ieee80211_frame_pspoll {
526 	uint8_t		i_fc[2];
527 	uint8_t		i_aid[2];
528 	uint8_t		i_bssid[IEEE80211_ADDR_LEN];
529 	uint8_t		i_ta[IEEE80211_ADDR_LEN];
530 	/* FCS */
531 } __packed;
532 
533 struct ieee80211_frame_cfend {		/* NB: also CF-End+CF-Ack */
534 	uint8_t		i_fc[2];
535 	uint8_t		i_dur[2];	/* should be zero */
536 	uint8_t		i_ra[IEEE80211_ADDR_LEN];
537 	uint8_t		i_bssid[IEEE80211_ADDR_LEN];
538 	/* FCS */
539 } __packed;
540 
541 struct ieee80211_frame_bar {
542 	uint8_t		i_fc[2];
543 	uint8_t		i_dur[2];
544 	uint8_t		i_ra[IEEE80211_ADDR_LEN];
545 	uint8_t		i_ta[IEEE80211_ADDR_LEN];
546 	uint16_t	i_ctl;
547 	uint16_t	i_seq;
548 	/* FCS */
549 } __packed;
550 
551 /*
552  * BEACON management packets
553  *
554  *	octet timestamp[8]
555  *	octet beacon interval[2]
556  *	octet capability information[2]
557  *	information element
558  *		octet elemid
559  *		octet length
560  *		octet information[length]
561  */
562 
563 #define	IEEE80211_BEACON_INTERVAL(beacon) \
564 	((beacon)[8] | ((beacon)[9] << 8))
565 #define	IEEE80211_BEACON_CAPABILITY(beacon) \
566 	((beacon)[10] | ((beacon)[11] << 8))
567 
568 #define	IEEE80211_CAPINFO_ESS			0x0001
569 #define	IEEE80211_CAPINFO_IBSS			0x0002
570 #define	IEEE80211_CAPINFO_CF_POLLABLE		0x0004
571 #define	IEEE80211_CAPINFO_CF_POLLREQ		0x0008
572 #define	IEEE80211_CAPINFO_PRIVACY		0x0010
573 #define	IEEE80211_CAPINFO_SHORT_PREAMBLE	0x0020
574 #define	IEEE80211_CAPINFO_PBCC			0x0040
575 #define	IEEE80211_CAPINFO_CHNL_AGILITY		0x0080
576 #define	IEEE80211_CAPINFO_SPECTRUM_MGMT		0x0100
577 /* bit 9 is reserved */
578 #define	IEEE80211_CAPINFO_SHORT_SLOTTIME	0x0400
579 #define	IEEE80211_CAPINFO_RSN			0x0800
580 /* bit 12 is reserved */
581 #define	IEEE80211_CAPINFO_DSSSOFDM		0x2000
582 /* bits 14-15 are reserved */
583 
584 #define	IEEE80211_CAPINFO_BITS \
585 	"\20\1ESS\2IBSS\3CF_POLLABLE\4CF_POLLREQ\5PRIVACY\6SHORT_PREAMBLE" \
586 	"\7PBCC\10CHNL_AGILITY\11SPECTRUM_MGMT\13SHORT_SLOTTIME\14RSN" \
587 	"\16DSSOFDM"
588 
589 /*
590  * 802.11i/WPA information element (maximally sized).
591  */
592 struct ieee80211_ie_wpa {
593 	uint8_t		wpa_id;		/* IEEE80211_ELEMID_VENDOR */
594 	uint8_t		wpa_len;	/* length in bytes */
595 	uint8_t		wpa_oui[3];	/* 0x00, 0x50, 0xf2 */
596 	uint8_t		wpa_type;	/* OUI type */
597 	uint16_t	wpa_version;	/* spec revision */
598 	uint32_t	wpa_mcipher[1];	/* multicast/group key cipher */
599 	uint16_t	wpa_uciphercnt;	/* # pairwise key ciphers */
600 	uint32_t	wpa_uciphers[8];/* ciphers */
601 	uint16_t	wpa_authselcnt;	/* authentication selector cnt*/
602 	uint32_t	wpa_authsels[8];/* selectors */
603 	uint16_t	wpa_caps;	/* 802.11i capabilities */
604 	uint16_t	wpa_pmkidcnt;	/* 802.11i pmkid count */
605 	uint16_t	wpa_pmkids[8];	/* 802.11i pmkids */
606 } __packed;
607 
608 /*
609  * 802.11n HT Capability IE
610  * NB: these reflect D1.10
611  */
612 struct ieee80211_ie_htcap {
613 	uint8_t		hc_id;			/* element ID */
614 	uint8_t		hc_len;			/* length in bytes */
615 	uint16_t	hc_cap;			/* HT caps (see below) */
616 	uint8_t		hc_param;		/* HT params (see below) */
617 	uint8_t 	hc_mcsset[16]; 		/* supported MCS set */
618 	uint16_t	hc_extcap;		/* extended HT capabilities */
619 	uint32_t	hc_txbf;		/* txbf capabilities */
620 	uint8_t		hc_antenna;		/* antenna capabilities */
621 } __packed;
622 
623 /* HT capability flags (ht_cap) */
624 #define	IEEE80211_HTCAP_LDPC		0x0001	/* LDPC rx supported */
625 #define	IEEE80211_HTCAP_CHWIDTH40	0x0002	/* 20/40 supported */
626 #define	IEEE80211_HTCAP_SMPS		0x000c	/* SM Power Save mode */
627 #define	IEEE80211_HTCAP_SMPS_OFF	0x000c	/* disabled */
628 #define	IEEE80211_HTCAP_SMPS_DYNAMIC	0x0004	/* send RTS first */
629 /* NB: SMPS value 2 is reserved */
630 #define	IEEE80211_HTCAP_SMPS_ENA	0x0000	/* enabled (static mode) */
631 #define	IEEE80211_HTCAP_GREENFIELD	0x0010	/* Greenfield supported */
632 #define	IEEE80211_HTCAP_SHORTGI20	0x0020	/* Short GI in 20MHz */
633 #define	IEEE80211_HTCAP_SHORTGI40	0x0040	/* Short GI in 40MHz */
634 #define	IEEE80211_HTCAP_TXSTBC		0x0080	/* STBC tx ok */
635 #define	IEEE80211_HTCAP_RXSTBC		0x0300  /* STBC rx support */
636 #define	IEEE80211_HTCAP_RXSTBC_S	8
637 #define	IEEE80211_HTCAP_RXSTBC_1STREAM	0x0100  /* 1 spatial stream */
638 #define	IEEE80211_HTCAP_RXSTBC_2STREAM	0x0200  /* 1-2 spatial streams*/
639 #define	IEEE80211_HTCAP_RXSTBC_3STREAM	0x0300  /* 1-3 spatial streams*/
640 #define	IEEE80211_HTCAP_DELBA		0x0400	/* HT DELBA supported */
641 #define	IEEE80211_HTCAP_MAXAMSDU	0x0800	/* max A-MSDU length */
642 #define	IEEE80211_HTCAP_MAXAMSDU_7935	0x0800	/* 7935 octets */
643 #define	IEEE80211_HTCAP_MAXAMSDU_3839	0x0000	/* 3839 octets */
644 #define	IEEE80211_HTCAP_DSSSCCK40	0x1000  /* DSSS/CCK in 40MHz */
645 #define	IEEE80211_HTCAP_PSMP		0x2000  /* PSMP supported */
646 #define	IEEE80211_HTCAP_40INTOLERANT	0x4000  /* 40MHz intolerant */
647 #define	IEEE80211_HTCAP_LSIGTXOPPROT	0x8000  /* L-SIG TXOP prot */
648 
649 #define	IEEE80211_HTCAP_BITS \
650 	"\20\1LDPC\2CHWIDTH40\5GREENFIELD\6SHORTGI20\7SHORTGI40\10TXSTBC" \
651 	"\13DELBA\14AMSDU(7935)\15DSSSCCK40\16PSMP\1740INTOLERANT" \
652 	"\20LSIGTXOPPROT"
653 
654 /* HT parameters (hc_param) */
655 #define	IEEE80211_HTCAP_MAXRXAMPDU	0x03	/* max rx A-MPDU factor */
656 #define	IEEE80211_HTCAP_MAXRXAMPDU_S	0
657 #define	IEEE80211_HTCAP_MAXRXAMPDU_8K	0
658 #define	IEEE80211_HTCAP_MAXRXAMPDU_16K	1
659 #define	IEEE80211_HTCAP_MAXRXAMPDU_32K	2
660 #define	IEEE80211_HTCAP_MAXRXAMPDU_64K	3
661 #define	IEEE80211_HTCAP_MPDUDENSITY	0x1c	/* min MPDU start spacing */
662 #define	IEEE80211_HTCAP_MPDUDENSITY_S	2
663 #define	IEEE80211_HTCAP_MPDUDENSITY_NA	0	/* no time restriction */
664 #define	IEEE80211_HTCAP_MPDUDENSITY_025	1	/* 1/4 us */
665 #define	IEEE80211_HTCAP_MPDUDENSITY_05	2	/* 1/2 us */
666 #define	IEEE80211_HTCAP_MPDUDENSITY_1	3	/* 1 us */
667 #define	IEEE80211_HTCAP_MPDUDENSITY_2	4	/* 2 us */
668 #define	IEEE80211_HTCAP_MPDUDENSITY_4	5	/* 4 us */
669 #define	IEEE80211_HTCAP_MPDUDENSITY_8	6	/* 8 us */
670 #define	IEEE80211_HTCAP_MPDUDENSITY_16	7	/* 16 us */
671 
672 /* HT extended capabilities (hc_extcap) */
673 #define	IEEE80211_HTCAP_PCO		0x0001	/* PCO capable */
674 #define	IEEE80211_HTCAP_PCOTRANS	0x0006	/* PCO transition time */
675 #define	IEEE80211_HTCAP_PCOTRANS_S	1
676 #define	IEEE80211_HTCAP_PCOTRANS_04	0x0002	/* 400 us */
677 #define	IEEE80211_HTCAP_PCOTRANS_15	0x0004	/* 1.5 ms */
678 #define	IEEE80211_HTCAP_PCOTRANS_5	0x0006	/* 5 ms */
679 /* bits 3-7 reserved */
680 #define	IEEE80211_HTCAP_MCSFBACK	0x0300	/* MCS feedback */
681 #define	IEEE80211_HTCAP_MCSFBACK_S	8
682 #define	IEEE80211_HTCAP_MCSFBACK_NONE	0x0000	/* nothing provided */
683 #define	IEEE80211_HTCAP_MCSFBACK_UNSOL	0x0200	/* unsolicited feedback */
684 #define	IEEE80211_HTCAP_MCSFBACK_MRQ	0x0300	/* " "+respond to MRQ */
685 #define	IEEE80211_HTCAP_HTC		0x0400	/* +HTC support */
686 #define	IEEE80211_HTCAP_RDR		0x0800	/* reverse direction responder*/
687 /* bits 12-15 reserved */
688 
689 /*
690  * 802.11n HT Information IE
691  */
692 struct ieee80211_ie_htinfo {
693 	uint8_t		hi_id;			/* element ID */
694 	uint8_t		hi_len;			/* length in bytes */
695 	uint8_t		hi_ctrlchannel;		/* primary channel */
696 	uint8_t		hi_byte1;		/* ht ie byte 1 */
697 	uint8_t		hi_byte2;		/* ht ie byte 2 */
698 	uint8_t		hi_byte3;		/* ht ie byte 3 */
699 	uint16_t	hi_byte45;		/* ht ie bytes 4+5 */
700 	uint8_t 	hi_basicmcsset[16]; 	/* basic MCS set */
701 } __packed;
702 
703 /* byte1 */
704 #define	IEEE80211_HTINFO_2NDCHAN	0x03	/* secondary/ext chan offset */
705 #define	IEEE80211_HTINFO_2NDCHAN_S	0
706 #define	IEEE80211_HTINFO_2NDCHAN_NONE	0x00	/* no secondary/ext channel */
707 #define	IEEE80211_HTINFO_2NDCHAN_ABOVE	0x01	/* above private channel */
708 /* NB: 2 is reserved */
709 #define	IEEE80211_HTINFO_2NDCHAN_BELOW	0x03	/* below primary channel */
710 #define	IEEE80211_HTINFO_TXWIDTH	0x04	/* tx channel width */
711 #define	IEEE80211_HTINFO_TXWIDTH_20	0x00	/* 20MHz width */
712 #define	IEEE80211_HTINFO_TXWIDTH_2040	0x04	/* any supported width */
713 #define	IEEE80211_HTINFO_RIFSMODE	0x08	/* Reduced IFS (RIFS) use */
714 #define	IEEE80211_HTINFO_RIFSMODE_PROH	0x00	/* RIFS use prohibited */
715 #define	IEEE80211_HTINFO_RIFSMODE_PERM	0x08	/* RIFS use permitted */
716 #define	IEEE80211_HTINFO_PMSPONLY	0x10	/* PSMP required to associate */
717 #define	IEEE80211_HTINFO_SIGRAN		0xe0	/* shortest Service Interval */
718 #define	IEEE80211_HTINFO_SIGRAN_S	5
719 #define	IEEE80211_HTINFO_SIGRAN_5	0x00	/* 5 ms */
720 /* XXX add rest */
721 
722 /* bytes 2+3 */
723 #define	IEEE80211_HTINFO_OPMODE		0x03	/* operating mode */
724 #define	IEEE80211_HTINFO_OPMODE_S	0
725 #define	IEEE80211_HTINFO_OPMODE_PURE	0x00	/* no protection */
726 #define	IEEE80211_HTINFO_OPMODE_PROTOPT	0x01	/* protection optional */
727 #define	IEEE80211_HTINFO_OPMODE_HT20PR	0x02	/* protection for HT20 sta's */
728 #define	IEEE80211_HTINFO_OPMODE_MIXED	0x03	/* protection for legacy sta's*/
729 #define	IEEE80211_HTINFO_NONGF_PRESENT	0x04	/* non-GF sta's present */
730 #define	IEEE80211_HTINFO_TXBL		0x08	/* transmit burst limit */
731 #define	IEEE80211_HTINFO_NONHT_PRESENT	0x10	/* non-HT sta's present */
732 /* bits 5-15 reserved */
733 
734 /* bytes 4+5 */
735 #define	IEEE80211_HTINFO_2NDARYBEACON	0x01
736 #define	IEEE80211_HTINFO_LSIGTXOPPROT	0x02
737 #define	IEEE80211_HTINFO_PCO_ACTIVE	0x04
738 #define	IEEE80211_HTINFO_40MHZPHASE	0x08
739 
740 /* byte5 */
741 #define	IEEE80211_HTINFO_BASIC_STBCMCS	0x7f
742 #define	IEEE80211_HTINFO_BASIC_STBCMCS_S 0
743 #define	IEEE80211_HTINFO_DUALPROTECTED	0x80
744 
745 /*
746  * 802.11ac definitions - 802.11ac-2013 .
747  */
748 
749 /*
750  * Maximum length of A-MPDU that the STA can RX in VHT.
751  * Length = 2 ^ (13 + max_ampdu_length_exp) - 1 (octets)
752  */
753 #define	IEEE80211_VHTCAP_MAX_AMPDU_8K		0
754 #define	IEEE80211_VHTCAP_MAX_AMPDU_16K		1
755 #define	IEEE80211_VHTCAP_MAX_AMPDU_32K		2
756 #define	IEEE80211_VHTCAP_MAX_AMPDU_64K		3
757 #define	IEEE80211_VHTCAP_MAX_AMPDU_128K		4
758 #define	IEEE80211_VHTCAP_MAX_AMPDU_256K		5
759 #define	IEEE80211_VHTCAP_MAX_AMPDU_512K		6
760 #define	IEEE80211_VHTCAP_MAX_AMPDU_1024K	7
761 
762 /*
763  * VHT MCS information.
764  * + rx_highest/tx_highest: optional; maximum long GI VHT PPDU
765  *    data rate.  1Mbit/sec units.
766  * + rx_mcs_map/tx_mcs_map: bitmap of per-stream supported MCS;
767  *    2 bits each.
768  */
769 #define	IEEE80211_VHT_MCS_SUPPORT_0_7		0	/* MCS0-7 */
770 #define	IEEE80211_VHT_MCS_SUPPORT_0_8		1	/* MCS0-8 */
771 #define	IEEE80211_VHT_MCS_SUPPORT_0_9		2	/* MCS0-9 */
772 #define	IEEE80211_VHT_MCS_NOT_SUPPORTED		3	/* not supported */
773 
774 struct ieee80211_vht_mcs_info {
775 	uint16_t rx_mcs_map;
776 	uint16_t rx_highest;
777 	uint16_t tx_mcs_map;
778 	uint16_t tx_highest;
779 } __packed;
780 
781 /* VHT capabilities element: 802.11ac-2013 8.4.2.160 */
782 struct ieee80211_ie_vhtcap {
783 	uint8_t ie;
784 	uint8_t len;
785 	uint32_t vht_cap_info;
786 	struct ieee80211_vht_mcs_info supp_mcs;
787 } __packed;
788 
789 /* VHT operation mode subfields - 802.11ac-2013 Table 8.183x */
790 #define	IEEE80211_VHT_CHANWIDTH_USE_HT		0	/* Use HT IE for chw */
791 #define	IEEE80211_VHT_CHANWIDTH_80MHZ		1	/* 80MHz */
792 #define	IEEE80211_VHT_CHANWIDTH_160MHZ		2	/* 160MHz */
793 #define	IEEE80211_VHT_CHANWIDTH_80P80MHZ	3	/* 80+80MHz */
794 
795 /* VHT operation IE - 802.11ac-2013 8.4.2.161 */
796 struct ieee80211_ie_vht_operation {
797 	uint8_t ie;
798 	uint8_t len;
799 	uint8_t chan_width;
800 	uint8_t center_freq_seg1_idx;
801 	uint8_t center_freq_seg2_idx;
802 	uint16_t basic_mcs_set;
803 } __packed;
804 
805 /* 802.11ac VHT Capabilities */
806 #define	IEEE80211_VHTCAP_MAX_MPDU_LENGTH_3895	0x00000000
807 #define	IEEE80211_VHTCAP_MAX_MPDU_LENGTH_7991	0x00000001
808 #define	IEEE80211_VHTCAP_MAX_MPDU_LENGTH_11454	0x00000002
809 #define	IEEE80211_VHTCAP_MAX_MPDU_MASK		0x00000003
810 #define	IEEE80211_VHTCAP_MAX_MPDU_MASK_S	0
811 
812 #define	IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK	0x0000000C
813 #define	IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK_S	2
814 #define	IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_NONE		0
815 #define	IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160MHZ		1
816 #define	IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160_80P80MHZ	2
817 #define	IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_RESERVED	3
818 
819 #define	IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160MHZ(_vhtcaps)		\
820     (_IEEE80211_MASKSHIFT(_vhtcaps, IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) >= \
821             IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160MHZ)
822 #define	IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_IS_160_80P80MHZ(_vhtcaps)	\
823     (_IEEE80211_MASKSHIFT(_vhtcaps, IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_MASK) == \
824             IEEE80211_VHTCAP_SUPP_CHAN_WIDTH_160_80P80MHZ)
825 
826 #define	IEEE80211_VHTCAP_RXLDPC		0x00000010
827 #define	IEEE80211_VHTCAP_RXLDPC_S	4
828 
829 #define	IEEE80211_VHTCAP_SHORT_GI_80		0x00000020
830 #define	IEEE80211_VHTCAP_SHORT_GI_80_S		5
831 
832 #define	IEEE80211_VHTCAP_SHORT_GI_160		0x00000040
833 #define	IEEE80211_VHTCAP_SHORT_GI_160_S		6
834 
835 #define	IEEE80211_VHTCAP_TXSTBC		0x00000080
836 #define	IEEE80211_VHTCAP_TXSTBC_S	7
837 
838 #define	IEEE80211_VHTCAP_RXSTBC_1		0x00000100
839 #define	IEEE80211_VHTCAP_RXSTBC_2		0x00000200
840 #define	IEEE80211_VHTCAP_RXSTBC_3		0x00000300
841 #define	IEEE80211_VHTCAP_RXSTBC_4		0x00000400
842 #define	IEEE80211_VHTCAP_RXSTBC_MASK		0x00000700
843 #define	IEEE80211_VHTCAP_RXSTBC_MASK_S		8
844 
845 #define	IEEE80211_VHTCAP_SU_BEAMFORMER_CAPABLE	0x00000800
846 #define	IEEE80211_VHTCAP_SU_BEAMFORMER_CAPABLE_S	11
847 
848 #define	IEEE80211_VHTCAP_SU_BEAMFORMEE_CAPABLE	0x00001000
849 #define	IEEE80211_VHTCAP_SU_BEAMFORMEE_CAPABLE_S	12
850 
851 #define	IEEE80211_VHTCAP_BEAMFORMEE_STS_SHIFT	13
852 #define	IEEE80211_VHTCAP_BEAMFORMEE_STS_MASK \
853 	    (7 << IEEE80211_VHTCAP_BEAMFORMEE_STS_SHIFT)
854 #define	IEEE80211_VHTCAP_BEAMFORMEE_STS_MASK_S	13
855 
856 #define	IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_SHIFT	16
857 #define	IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_MASK \
858 	    (7 << IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_SHIFT)
859 #define	IEEE80211_VHTCAP_SOUNDING_DIMENSIONS_MASK_S	16
860 
861 #define	IEEE80211_VHTCAP_MU_BEAMFORMER_CAPABLE	0x00080000
862 #define	IEEE80211_VHTCAP_MU_BEAMFORMER_CAPABLE_S	19
863 #define	IEEE80211_VHTCAP_MU_BEAMFORMEE_CAPABLE	0x00100000
864 #define	IEEE80211_VHTCAP_MU_BEAMFORMEE_CAPABLE_S	20
865 #define	IEEE80211_VHTCAP_VHT_TXOP_PS		0x00200000
866 #define	IEEE80211_VHTCAP_VHT_TXOP_PS_S		21
867 #define	IEEE80211_VHTCAP_HTC_VHT		0x00400000
868 #define	IEEE80211_VHTCAP_HTC_VHT_S		22
869 
870 #define	IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT	23
871 #define	IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \
872 	    (7 << IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT)
873 #define	IEEE80211_VHTCAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK_S	23
874 
875 #define	IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MASK	0x0c000000
876 #define	IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_UNSOL_MFB	0x08000000
877 #define	IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB	0x0c000000
878 #define	IEEE80211_VHTCAP_VHT_LINK_ADAPTATION_VHT_MASK_S	26
879 
880 #define	IEEE80211_VHTCAP_RX_ANTENNA_PATTERN	0x10000000
881 #define	IEEE80211_VHTCAP_RX_ANTENNA_PATTERN_S	28
882 #define	IEEE80211_VHTCAP_TX_ANTENNA_PATTERN	0x20000000
883 #define	IEEE80211_VHTCAP_TX_ANTENNA_PATTERN_S	29
884 
885 /*
886  * XXX TODO: add the rest of the bits
887  */
888 #define	IEEE80211_VHTCAP_BITS \
889 	"\20\1MPDU7991\2MPDU11454\3CHAN160\4CHAN8080\5RXLDPC\6SHORTGI80" \
890 	"\7SHORTGI160\10RXSTBC1\11RXSTBC2\12RXSTBC3\13RXSTBC4\14BFERCAP" \
891 	"\15BFEECAP\27VHT\37RXANTPTN\40TXANTPTN"
892 
893 /*
894  * VHT Transmit Power Envelope element - 802.11ac-2013 8.4.2.164
895  *
896  * This defines the maximum transmit power for various bandwidths.
897  */
898 /*
899  * Count is how many elements follow and what they're for:
900  *
901  * 0 - 20 MHz
902  * 1 - 20+40 MHz
903  * 2 - 20+40+80 MHz
904  * 3 - 20+40+80+(160, 80+80) MHz
905  */
906 #define	IEEE80211_VHT_TXPWRENV_INFO_COUNT_SHIFT	0
907 #define	IEEE80211_VHT_TXPWRENV_INFO_COUNT_MASK	0x07
908 
909 /*
910  * Unit is the tx power representation.  It should be EIRP for now;
911  * other values are reserved.
912  */
913 #define	IEEE80211_VHT_TXPWRENV_UNIT_MASK	0x38
914 #define	IEEE80211_VHT_TXPWRENV_UNIT_SHIFT	3
915 
916 /* This value is within the unit mask/shift above */
917 #define	IEEE80211_VHT_TXPWRENV_UNIT_EIRP	0
918 
919 struct ieee80211_ie_vht_txpwrenv {
920 	uint8_t ie;
921 	uint8_t len;
922 	uint8_t tx_info;
923 	int8_t tx_elem[0];	/* TX power elements, 1/2 dB, signed */
924 };
925 
926 /* VHT action codes */
927 #define	WLAN_ACTION_VHT_COMPRESSED_BF		0
928 #define	WLAN_ACTION_VHT_GROUPID_MGMT		1
929 #define	WLAN_ACTION_VHT_OPMODE_NOTIF		2
930 
931 /*
932  * Management information element payloads.
933  */
934 
935 enum {
936 	IEEE80211_ELEMID_SSID		= 0,
937 	IEEE80211_ELEMID_RATES		= 1,
938 	IEEE80211_ELEMID_FHPARMS	= 2,
939 	IEEE80211_ELEMID_DSPARMS	= 3,
940 	IEEE80211_ELEMID_CFPARMS	= 4,
941 	IEEE80211_ELEMID_TIM		= 5,
942 	IEEE80211_ELEMID_IBSSPARMS	= 6,
943 	IEEE80211_ELEMID_COUNTRY	= 7,
944 	IEEE80211_ELEMID_BSSLOAD	= 11,
945 	IEEE80211_ELEMID_TSPEC		= 13,
946 	IEEE80211_ELEMID_TCLAS		= 14,
947 	IEEE80211_ELEMID_CHALLENGE	= 16,
948 	/* 17-31 reserved for challenge text extension */
949 	IEEE80211_ELEMID_PWRCNSTR	= 32,
950 	IEEE80211_ELEMID_PWRCAP		= 33,
951 	IEEE80211_ELEMID_TPCREQ		= 34,
952 	IEEE80211_ELEMID_TPCREP		= 35,
953 	IEEE80211_ELEMID_SUPPCHAN	= 36,
954 	IEEE80211_ELEMID_CSA		= 37,
955 	IEEE80211_ELEMID_MEASREQ	= 38,
956 	IEEE80211_ELEMID_MEASREP	= 39,
957 	IEEE80211_ELEMID_QUIET		= 40,
958 	IEEE80211_ELEMID_IBSSDFS	= 41,
959 	IEEE80211_ELEMID_ERP		= 42,
960 	IEEE80211_ELEMID_HTCAP		= 45,
961 	IEEE80211_ELEMID_QOS		= 46,
962 	IEEE80211_ELEMID_RESERVED_47	= 47,
963 	IEEE80211_ELEMID_RSN		= 48,
964 	IEEE80211_ELEMID_XRATES		= 50,
965 	IEEE80211_ELEMID_APCHANREP	= 51,
966 	IEEE80211_ELEMID_MOBILITY_DOMAIN	= 54,
967 	IEEE80211_ELEMID_HTINFO		= 61,
968 	IEEE80211_ELEMID_SECCHAN_OFFSET	= 62,
969 	IEEE80211_ELEMID_RRM_ENACAPS	= 70,
970 	IEEE80211_ELEMID_MULTIBSSID	= 71,
971 	IEEE80211_ELEMID_COEX_2040	= 72,
972 	IEEE80211_ELEMID_INTOL_CHN_REPORT	= 73,
973 	IEEE80211_ELEMID_OVERLAP_BSS_SCAN_PARAM = 74,
974 	IEEE80211_ELEMID_TSF_REQ	= 91,
975 	IEEE80211_ELEMID_TSF_RESP	= 92,
976 	IEEE80211_ELEMID_WNM_SLEEP_MODE	= 93,
977 	IEEE80211_ELEMID_TIM_BCAST_REQ	= 94,
978 	IEEE80211_ELEMID_TIM_BCAST_RESP	= 95,
979 	IEEE80211_ELEMID_TPC		= 150,
980 	IEEE80211_ELEMID_CCKM		= 156,
981 	IEEE80211_ELEMID_VENDOR		= 221,	/* vendor private */
982 
983 	/*
984 	 * 802.11s IEs
985 	 * NB: On vanilla Linux still IEEE80211_ELEMID_MESHPEER = 55,
986 	 * but they defined a new with id 117 called PEER_MGMT.
987 	 * NB: complies with open80211
988 	 */
989 	IEEE80211_ELEMID_MESHCONF	= 113,
990 	IEEE80211_ELEMID_MESHID		= 114,
991 	IEEE80211_ELEMID_MESHLINK	= 115,
992 	IEEE80211_ELEMID_MESHCNGST	= 116,
993 	IEEE80211_ELEMID_MESHPEER	= 117,
994 	IEEE80211_ELEMID_MESHCSA	= 118,
995 	IEEE80211_ELEMID_MESHTIM	= 39, /* XXX: remove */
996 	IEEE80211_ELEMID_MESHAWAKEW	= 119,
997 	IEEE80211_ELEMID_MESHBEACONT	= 120,
998 	/* 121-124 MMCAOP not implemented yet */
999 	IEEE80211_ELEMID_MESHGANN	= 125,
1000 	IEEE80211_ELEMID_MESHRANN	= 126,
1001 	/* 127 Extended Capabilities */
1002 	IEEE80211_ELEMID_EXTCAP		= 127,
1003 	/* 128-129 reserved */
1004 	IEEE80211_ELEMID_MESHPREQ	= 130,
1005 	IEEE80211_ELEMID_MESHPREP	= 131,
1006 	IEEE80211_ELEMID_MESHPERR	= 132,
1007 	/* 133-136 reserved */
1008 	IEEE80211_ELEMID_MESHPXU	= 137,
1009 	IEEE80211_ELEMID_MESHPXUC	= 138,
1010 	IEEE80211_ELEMID_MESHAH		= 60, /* XXX: remove */
1011 
1012 	/* 802.11ac-2013, Table 8-54-Element IDs */
1013 	IEEE80211_ELEMID_VHT_CAP	= 191,
1014 	IEEE80211_ELEMID_VHT_OPMODE	= 192,
1015 	IEEE80211_ELEMID_EXTENDED_BSS_LOAD = 193,
1016 	IEEE80211_ELEMID_WIDE_BW_CHANNEL_SWITCH = 194,
1017 	IEEE80211_ELEMID_VHT_PWR_ENV	= 195,
1018 	IEEE80211_ELEMID_CHANNEL_SWITCH_WRAPPER = 196,
1019 	IEEE80211_ELEMID_AID		= 197,
1020 	IEEE80211_ELEMID_QUIET_CHANNEL	= 198,
1021 	IEEE80211_ELEMID_OPMODE_NOTIF	= 199,
1022 };
1023 
1024 struct ieee80211_tim_ie {
1025 	uint8_t		tim_ie;			/* IEEE80211_ELEMID_TIM */
1026 	uint8_t		tim_len;
1027 	uint8_t		tim_count;		/* DTIM count */
1028 	uint8_t		tim_period;		/* DTIM period */
1029 	uint8_t		tim_bitctl;		/* bitmap control */
1030 	uint8_t		tim_bitmap[1];		/* variable-length bitmap */
1031 } __packed;
1032 
1033 struct ieee80211_country_ie {
1034 	uint8_t		ie;			/* IEEE80211_ELEMID_COUNTRY */
1035 	uint8_t		len;
1036 	uint8_t		cc[3];			/* ISO CC+(I)ndoor/(O)utdoor */
1037 	struct {
1038 		uint8_t schan;			/* starting channel */
1039 		uint8_t nchan;			/* number channels */
1040 		uint8_t maxtxpwr;		/* tx power cap */
1041 	} __packed band[1];			/* sub bands (NB: var size) */
1042 } __packed;
1043 
1044 #define	IEEE80211_COUNTRY_MAX_BANDS	84	/* max possible bands */
1045 #define	IEEE80211_COUNTRY_MAX_SIZE \
1046 	(sizeof(struct ieee80211_country_ie) + 3*(IEEE80211_COUNTRY_MAX_BANDS-1))
1047 
1048 struct ieee80211_bss_load_ie {
1049 	uint8_t		ie;
1050 	uint8_t		len;
1051 	uint16_t	sta_count;	/* station count */
1052 	uint8_t		chan_load;	/* channel utilization */
1053 	uint8_t		aac;		/* available admission capacity */
1054 } __packed;
1055 
1056 struct ieee80211_ap_chan_report_ie {
1057 	uint8_t		ie;
1058 	uint8_t		len;
1059 	uint8_t		i_class; /* operating class */
1060 	/* Annex E, E.1 Country information and operating classes */
1061 	uint8_t		chan_list[0];
1062 } __packed;
1063 
1064 #define IEEE80211_EXTCAP_CMS			(1ULL <<  0) /* 20/40 BSS coexistence management support */
1065 #define IEEE80211_EXTCAP_RSVD_1			(1ULL <<  1)
1066 #define IEEE80211_EXTCAP_ECS			(1ULL <<  2) /* extended channel switching */
1067 #define IEEE80211_EXTCAP_RSVD_3			(1ULL <<  3)
1068 #define IEEE80211_EXTCAP_PSMP_CAP		(1ULL <<  4) /* PSMP capability */
1069 #define IEEE80211_EXTCAP_RSVD_5			(1ULL <<  5)
1070 #define IEEE80211_EXTCAP_S_PSMP_SUPP		(1ULL <<  6)
1071 #define IEEE80211_EXTCAP_EVENT			(1ULL <<  7)
1072 #define IEEE80211_EXTCAP_DIAGNOSTICS		(1ULL <<  8)
1073 #define IEEE80211_EXTCAP_MCAST_DIAG		(1ULL <<  9)
1074 #define IEEE80211_EXTCAP_LOC_TRACKING		(1ULL << 10)
1075 #define IEEE80211_EXTCAP_FMS			(1ULL << 11)
1076 #define IEEE80211_EXTCAP_PROXY_ARP		(1ULL << 12)
1077 #define IEEE80211_EXTCAP_CIR			(1ULL << 13) /* collocated interference reporting */
1078 #define IEEE80211_EXTCAP_CIVIC_LOC		(1ULL << 14)
1079 #define IEEE80211_EXTCAP_GEOSPATIAL_LOC		(1ULL << 15)
1080 #define IEEE80211_EXTCAP_TFS			(1ULL << 16)
1081 #define IEEE80211_EXTCAP_WNM_SLEEPMODE		(1ULL << 17)
1082 #define IEEE80211_EXTCAP_TIM_BROADCAST		(1ULL << 18)
1083 #define IEEE80211_EXTCAP_BSS_TRANSITION		(1ULL << 19)
1084 #define IEEE80211_EXTCAP_QOS_TRAF_CAP		(1ULL << 20)
1085 #define IEEE80211_EXTCAP_AC_STA_COUNT		(1ULL << 21)
1086 #define IEEE80211_EXTCAP_M_BSSID		(1ULL << 22) /* multiple BSSID field */
1087 #define IEEE80211_EXTCAP_TIMING_MEAS		(1ULL << 23)
1088 #define IEEE80211_EXTCAP_CHAN_USAGE		(1ULL << 24)
1089 #define IEEE80211_EXTCAP_SSID_LIST		(1ULL << 25)
1090 #define IEEE80211_EXTCAP_DMS			(1ULL << 26)
1091 #define IEEE80211_EXTCAP_UTC_TSF_OFFSET		(1ULL << 27)
1092 #define IEEE80211_EXTCAP_TLDS_BUF_STA_SUPP	(1ULL << 28) /* TDLS peer U-APSP buffer STA support */
1093 #define IEEE80211_EXTCAP_TLDS_PPSM_SUPP		(1ULL << 29) /* TDLS peer PSM support */
1094 #define IEEE80211_EXTCAP_TLDS_CH_SW		(1ULL << 30) /* TDLS channel switching */
1095 #define IEEE80211_EXTCAP_INTERWORKING		(1ULL << 31)
1096 #define IEEE80211_EXTCAP_QOSMAP			(1ULL << 32)
1097 #define IEEE80211_EXTCAP_EBR			(1ULL << 33)
1098 #define IEEE80211_EXTCAP_SSPN_IF		(1ULL << 34)
1099 #define IEEE80211_EXTCAP_RSVD_35		(1ULL << 35)
1100 #define IEEE80211_EXTCAP_MSGCF_CAP		(1ULL << 36)
1101 #define IEEE80211_EXTCAP_TLDS_SUPP		(1ULL << 37)
1102 #define IEEE80211_EXTCAP_TLDS_PROHIB		(1ULL << 38)
1103 #define IEEE80211_EXTCAP_TLDS_CH_SW_PROHIB	(1ULL << 39) /* TDLS channel switching prohibited */
1104 #define IEEE80211_EXTCAP_RUF			(1ULL << 40) /* reject unadmitted frame */
1105 /* service interval granularity */
1106 #define IEEE80211_EXTCAP_SIG \
1107 				((1ULL << 41) | (1ULL << 42) | (1ULL << 43))
1108 #define IEEE80211_EXTCAP_ID_LOC			(1ULL << 44)
1109 #define IEEE80211_EXTCAP_U_APSD_COEX		(1ULL << 45)
1110 #define IEEE80211_EXTCAP_WNM_NOTIFICATION	(1ULL << 46)
1111 #define IEEE80211_EXTCAP_RSVD_47		(1ULL << 47)
1112 #define IEEE80211_EXTCAP_SSID			(1ULL << 48) /* UTF-8 SSID */
1113 /* bits 49-n are reserved */
1114 
1115 struct ieee80211_extcap_ie {
1116 	uint8_t		ie;
1117 	uint8_t		len;
1118 } __packed;
1119 
1120 /*
1121  * 802.11h Quiet Time Element.
1122  */
1123 struct ieee80211_quiet_ie {
1124 	uint8_t		quiet_ie;		/* IEEE80211_ELEMID_QUIET */
1125 	uint8_t		len;
1126 	uint8_t		tbttcount;		/* quiet start */
1127 	uint8_t		period;			/* beacon intervals between quiets */
1128 	uint16_t	duration;		/* TUs of each quiet*/
1129 	uint16_t	offset;			/* TUs of from TBTT of quiet start */
1130 } __packed;
1131 
1132 /*
1133  * 802.11h Channel Switch Announcement (CSA).
1134  */
1135 struct ieee80211_csa_ie {
1136 	uint8_t		csa_ie;		/* IEEE80211_ELEMID_CHANSWITCHANN */
1137 	uint8_t		csa_len;
1138 	uint8_t		csa_mode;		/* Channel Switch Mode */
1139 	uint8_t		csa_newchan;		/* New Channel Number */
1140 	uint8_t		csa_count;		/* Channel Switch Count */
1141 } __packed;
1142 
1143 /*
1144  * Note the min acceptable CSA count is used to guard against
1145  * malicious CSA injection in station mode.  Defining this value
1146  * as other than 0 violates the 11h spec.
1147  */
1148 #define	IEEE80211_CSA_COUNT_MIN	2
1149 #define	IEEE80211_CSA_COUNT_MAX	255
1150 
1151 /* rate set entries are in .5 Mb/s units, and potentially marked as basic */
1152 #define	IEEE80211_RATE_BASIC		0x80
1153 #define	IEEE80211_RATE_VAL		0x7f
1154 #define	IEEE80211_RV(v)			((v) & IEEE80211_RATE_VAL)
1155 
1156 /* ERP information element flags */
1157 #define	IEEE80211_ERP_NON_ERP_PRESENT	0x01
1158 #define	IEEE80211_ERP_USE_PROTECTION	0x02
1159 #define	IEEE80211_ERP_LONG_PREAMBLE	0x04
1160 
1161 #define	IEEE80211_ERP_BITS \
1162 	"\20\1NON_ERP_PRESENT\2USE_PROTECTION\3LONG_PREAMBLE"
1163 
1164 #define	ATH_OUI			0x7f0300	/* Atheros OUI */
1165 #define	ATH_OUI_TYPE		0x01		/* Atheros protocol ie */
1166 
1167 /* NB: Atheros allocated the OUI for this purpose ~2005 but beware ... */
1168 #define	TDMA_OUI		ATH_OUI
1169 #define	TDMA_OUI_TYPE		0x02		/* TDMA protocol ie */
1170 
1171 #define	BCM_OUI			0x4c9000	/* Broadcom OUI */
1172 #define	BCM_OUI_HTCAP		51		/* pre-draft HTCAP ie */
1173 #define	BCM_OUI_HTINFO		52		/* pre-draft HTINFO ie */
1174 
1175 #define	WPA_OUI			0xf25000
1176 #define	WPA_OUI_TYPE		0x01
1177 #define	WPA_VERSION		1		/* current supported version */
1178 
1179 #define	WPA_CSE_NULL		0x00
1180 #define	WPA_CSE_WEP40		0x01
1181 #define	WPA_CSE_TKIP		0x02
1182 #define	WPA_CSE_CCMP		0x04
1183 #define	WPA_CSE_WEP104		0x05
1184 
1185 #define	WPA_ASE_NONE		0x00
1186 #define	WPA_ASE_8021X_UNSPEC	0x01
1187 #define	WPA_ASE_8021X_PSK	0x02
1188 
1189 #define	WPS_OUI_TYPE		0x04
1190 
1191 #define	RSN_OUI			0xac0f00
1192 #define	RSN_VERSION		1		/* current supported version */
1193 
1194 #define	RSN_CSE_NULL		0x00
1195 #define	RSN_CSE_WEP40		0x01
1196 #define	RSN_CSE_TKIP		0x02
1197 #define	RSN_CSE_WRAP		0x03
1198 #define	RSN_CSE_CCMP		0x04
1199 #define	RSN_CSE_WEP104		0x05
1200 
1201 #define	RSN_ASE_NONE		0x00
1202 #define	RSN_ASE_8021X_UNSPEC	0x01
1203 #define	RSN_ASE_8021X_PSK	0x02
1204 
1205 #define	RSN_CAP_PREAUTH		0x01
1206 
1207 #define	WME_OUI			0xf25000
1208 #define	WME_OUI_TYPE		0x02
1209 #define	WME_INFO_OUI_SUBTYPE	0x00
1210 #define	WME_PARAM_OUI_SUBTYPE	0x01
1211 #define	WME_VERSION		1
1212 
1213 /* WME stream classes */
1214 #define	WME_AC_BE	0		/* best effort */
1215 #define	WME_AC_BK	1		/* background */
1216 #define	WME_AC_VI	2		/* video */
1217 #define	WME_AC_VO	3		/* voice */
1218 
1219 /*
1220  * AUTH management packets
1221  *
1222  *	octet algo[2]
1223  *	octet seq[2]
1224  *	octet status[2]
1225  *	octet chal.id
1226  *	octet chal.length
1227  *	octet chal.text[253]		NB: 1-253 bytes
1228  */
1229 
1230 /* challenge length for shared key auth */
1231 #define IEEE80211_CHALLENGE_LEN		128
1232 
1233 #define	IEEE80211_AUTH_ALG_OPEN		0x0000
1234 #define	IEEE80211_AUTH_ALG_SHARED	0x0001
1235 #define	IEEE80211_AUTH_ALG_LEAP		0x0080
1236 
1237 enum {
1238 	IEEE80211_AUTH_OPEN_REQUEST		= 1,
1239 	IEEE80211_AUTH_OPEN_RESPONSE		= 2,
1240 };
1241 
1242 enum {
1243 	IEEE80211_AUTH_SHARED_REQUEST		= 1,
1244 	IEEE80211_AUTH_SHARED_CHALLENGE		= 2,
1245 	IEEE80211_AUTH_SHARED_RESPONSE		= 3,
1246 	IEEE80211_AUTH_SHARED_PASS		= 4,
1247 };
1248 
1249 /*
1250  * Reason and status codes.
1251  *
1252  * Reason codes are used in management frames to indicate why an
1253  * action took place (e.g. on disassociation).  Status codes are
1254  * used in management frames to indicate the result of an operation.
1255  *
1256  * Unlisted codes are reserved
1257  */
1258 
1259 enum {
1260 	IEEE80211_REASON_UNSPECIFIED		= 1,
1261 	IEEE80211_REASON_AUTH_EXPIRE		= 2,
1262 	IEEE80211_REASON_AUTH_LEAVE		= 3,
1263 	IEEE80211_REASON_ASSOC_EXPIRE		= 4,
1264 	IEEE80211_REASON_ASSOC_TOOMANY		= 5,
1265 	IEEE80211_REASON_NOT_AUTHED		= 6,
1266 	IEEE80211_REASON_NOT_ASSOCED		= 7,
1267 	IEEE80211_REASON_ASSOC_LEAVE		= 8,
1268 	IEEE80211_REASON_ASSOC_NOT_AUTHED	= 9,
1269 	IEEE80211_REASON_DISASSOC_PWRCAP_BAD	= 10,	/* 11h */
1270 	IEEE80211_REASON_DISASSOC_SUPCHAN_BAD	= 11,	/* 11h */
1271 	IEEE80211_REASON_IE_INVALID		= 13,	/* 11i */
1272 	IEEE80211_REASON_MIC_FAILURE		= 14,	/* 11i */
1273 	IEEE80211_REASON_4WAY_HANDSHAKE_TIMEOUT	= 15,	/* 11i */
1274 	IEEE80211_REASON_GROUP_KEY_UPDATE_TIMEOUT = 16,	/* 11i */
1275 	IEEE80211_REASON_IE_IN_4WAY_DIFFERS	= 17,	/* 11i */
1276 	IEEE80211_REASON_GROUP_CIPHER_INVALID	= 18,	/* 11i */
1277 	IEEE80211_REASON_PAIRWISE_CIPHER_INVALID= 19,	/* 11i */
1278 	IEEE80211_REASON_AKMP_INVALID		= 20,	/* 11i */
1279 	IEEE80211_REASON_UNSUPP_RSN_IE_VERSION	= 21,	/* 11i */
1280 	IEEE80211_REASON_INVALID_RSN_IE_CAP	= 22,	/* 11i */
1281 	IEEE80211_REASON_802_1X_AUTH_FAILED	= 23,	/* 11i */
1282 	IEEE80211_REASON_CIPHER_SUITE_REJECTED	= 24,	/* 11i */
1283 	IEEE80211_REASON_UNSPECIFIED_QOS	= 32,	/* 11e */
1284 	IEEE80211_REASON_INSUFFICIENT_BW	= 33,	/* 11e */
1285 	IEEE80211_REASON_TOOMANY_FRAMES		= 34,	/* 11e */
1286 	IEEE80211_REASON_OUTSIDE_TXOP		= 35,	/* 11e */
1287 	IEEE80211_REASON_LEAVING_QBSS		= 36,	/* 11e */
1288 	IEEE80211_REASON_BAD_MECHANISM		= 37,	/* 11e */
1289 	IEEE80211_REASON_SETUP_NEEDED		= 38,	/* 11e */
1290 	IEEE80211_REASON_TIMEOUT		= 39,	/* 11e */
1291 
1292 	IEEE80211_REASON_PEER_LINK_CANCELED	= 52,	/* 11s */
1293 	IEEE80211_REASON_MESH_MAX_PEERS		= 53,	/* 11s */
1294 	IEEE80211_REASON_MESH_CPVIOLATION	= 54,	/* 11s */
1295 	IEEE80211_REASON_MESH_CLOSE_RCVD	= 55,	/* 11s */
1296 	IEEE80211_REASON_MESH_MAX_RETRIES	= 56,	/* 11s */
1297 	IEEE80211_REASON_MESH_CONFIRM_TIMEOUT	= 57,	/* 11s */
1298 	IEEE80211_REASON_MESH_INVALID_GTK	= 58,	/* 11s */
1299 	IEEE80211_REASON_MESH_INCONS_PARAMS	= 59,	/* 11s */
1300 	IEEE80211_REASON_MESH_INVALID_SECURITY	= 60,	/* 11s */
1301 	IEEE80211_REASON_MESH_PERR_NO_PROXY	= 61,	/* 11s */
1302 	IEEE80211_REASON_MESH_PERR_NO_FI	= 62,	/* 11s */
1303 	IEEE80211_REASON_MESH_PERR_DEST_UNREACH	= 63,	/* 11s */
1304 	IEEE80211_REASON_MESH_MAC_ALRDY_EXISTS_MBSS = 64, /* 11s */
1305 	IEEE80211_REASON_MESH_CHAN_SWITCH_REG	= 65,	/* 11s */
1306 	IEEE80211_REASON_MESH_CHAN_SWITCH_UNSPEC = 66,	/* 11s */
1307 
1308 	IEEE80211_STATUS_SUCCESS		= 0,
1309 	IEEE80211_STATUS_UNSPECIFIED		= 1,
1310 	IEEE80211_STATUS_CAPINFO		= 10,
1311 	IEEE80211_STATUS_NOT_ASSOCED		= 11,
1312 	IEEE80211_STATUS_OTHER			= 12,
1313 	IEEE80211_STATUS_ALG			= 13,
1314 	IEEE80211_STATUS_SEQUENCE		= 14,
1315 	IEEE80211_STATUS_CHALLENGE		= 15,
1316 	IEEE80211_STATUS_TIMEOUT		= 16,
1317 	IEEE80211_STATUS_TOOMANY		= 17,
1318 	IEEE80211_STATUS_BASIC_RATE		= 18,
1319 	IEEE80211_STATUS_SP_REQUIRED		= 19,	/* 11b */
1320 	IEEE80211_STATUS_PBCC_REQUIRED		= 20,	/* 11b */
1321 	IEEE80211_STATUS_CA_REQUIRED		= 21,	/* 11b */
1322 	IEEE80211_STATUS_SPECMGMT_REQUIRED	= 22,	/* 11h */
1323 	IEEE80211_STATUS_PWRCAP_REQUIRED	= 23,	/* 11h */
1324 	IEEE80211_STATUS_SUPCHAN_REQUIRED	= 24,	/* 11h */
1325 	IEEE80211_STATUS_SHORTSLOT_REQUIRED	= 25,	/* 11g */
1326 	IEEE80211_STATUS_DSSSOFDM_REQUIRED	= 26,	/* 11g */
1327 	IEEE80211_STATUS_MISSING_HT_CAPS	= 27,	/* 11n D3.0 */
1328 	IEEE80211_STATUS_INVALID_IE		= 40,	/* 11i */
1329 	IEEE80211_STATUS_GROUP_CIPHER_INVALID	= 41,	/* 11i */
1330 	IEEE80211_STATUS_PAIRWISE_CIPHER_INVALID = 42,	/* 11i */
1331 	IEEE80211_STATUS_AKMP_INVALID		= 43,	/* 11i */
1332 	IEEE80211_STATUS_UNSUPP_RSN_IE_VERSION	= 44,	/* 11i */
1333 	IEEE80211_STATUS_INVALID_RSN_IE_CAP	= 45,	/* 11i */
1334 	IEEE80211_STATUS_CIPHER_SUITE_REJECTED	= 46,	/* 11i */
1335 };
1336 
1337 #define	IEEE80211_WEP_KEYLEN		5	/* 40bit */
1338 #define	IEEE80211_WEP_IVLEN		3	/* 24bit */
1339 #define	IEEE80211_WEP_KIDLEN		1	/* 1 octet */
1340 #define	IEEE80211_WEP_CRCLEN		4	/* CRC-32 */
1341 #define	IEEE80211_WEP_TOTLEN		(IEEE80211_WEP_IVLEN + \
1342 					 IEEE80211_WEP_KIDLEN + \
1343 					 IEEE80211_WEP_CRCLEN)
1344 #define	IEEE80211_WEP_NKID		4	/* number of key ids */
1345 
1346 /*
1347  * 802.11i defines an extended IV for use with non-WEP ciphers.
1348  * When the EXTIV bit is set in the key id byte an additional
1349  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
1350  * EXTIV bit is likewise set but the 8 bytes represent the
1351  * CCMP header rather than IV+extended-IV.
1352  */
1353 #define	IEEE80211_WEP_EXTIV		0x20
1354 #define	IEEE80211_WEP_EXTIVLEN		4	/* extended IV length */
1355 #define	IEEE80211_WEP_MICLEN		8	/* trailing MIC */
1356 
1357 #define	IEEE80211_CRC_LEN		4
1358 
1359 /*
1360  * Maximum acceptable MTU is:
1361  *	IEEE80211_MAX_LEN - WEP overhead - CRC -
1362  *		QoS overhead - RSN/WPA overhead
1363  * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
1364  * mtu is Ethernet-compatible; it's set by ether_ifattach.
1365  */
1366 #define	IEEE80211_MTU_MAX		2290
1367 #define	IEEE80211_MTU_MIN		32
1368 
1369 #define	IEEE80211_MAX_LEN		(2300 + IEEE80211_CRC_LEN + \
1370     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
1371 #define	IEEE80211_ACK_LEN \
1372 	(sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
1373 #define	IEEE80211_MIN_LEN \
1374 	(sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)
1375 
1376 /*
1377  * The 802.11 spec says at most 2007 stations may be
1378  * associated at once.  For most AP's this is way more
1379  * than is feasible so we use a default of IEEE80211_AID_DEF.
1380  * This number may be overridden by the driver and/or by
1381  * user configuration but may not be less than IEEE80211_AID_MIN
1382  * (see _ieee80211.h for implementation-specific settings).
1383  */
1384 #define	IEEE80211_AID_MAX		2007
1385 
1386 #define	IEEE80211_AID(b)	((b) &~ 0xc000)
1387 
1388 /*
1389  * RTS frame length parameters.  The default is specified in
1390  * the 802.11 spec as 512; we treat it as implementation-dependent
1391  * so it's defined in ieee80211_var.h.  The max may be wrong
1392  * for jumbo frames.
1393  */
1394 #define	IEEE80211_RTS_MIN		1
1395 #define	IEEE80211_RTS_MAX		2346
1396 
1397 /*
1398  * TX fragmentation parameters.  As above for RTS, we treat
1399  * default as implementation-dependent so define it elsewhere.
1400  */
1401 #define	IEEE80211_FRAG_MIN		256
1402 #define	IEEE80211_FRAG_MAX		2346
1403 
1404 /*
1405  * Beacon interval (TU's).  Min+max come from WiFi requirements.
1406  * As above, we treat default as implementation-dependent so
1407  * define it elsewhere.
1408  */
1409 #define	IEEE80211_BINTVAL_MAX	1000	/* max beacon interval (TU's) */
1410 #define	IEEE80211_BINTVAL_MIN	25	/* min beacon interval (TU's) */
1411 
1412 /*
1413  * DTIM period (beacons).  Min+max are not really defined
1414  * by the protocol but we want them publicly visible so
1415  * define them here.
1416  */
1417 #define	IEEE80211_DTIM_MAX	15	/* max DTIM period */
1418 #define	IEEE80211_DTIM_MIN	1	/* min DTIM period */
1419 
1420 /*
1421  * Beacon miss threshold (beacons).  As for DTIM, we define
1422  * them here to be publicly visible.  Note the max may be
1423  * clamped depending on device capabilities.
1424  */
1425 #define	IEEE80211_HWBMISS_MIN 	1
1426 #define	IEEE80211_HWBMISS_MAX 	255
1427 
1428 /*
1429  * 802.11 frame duration definitions.
1430  */
1431 
1432 struct ieee80211_duration {
1433 	uint16_t	d_rts_dur;
1434 	uint16_t	d_data_dur;
1435 	uint16_t	d_plcp_len;
1436 	uint8_t		d_residue;	/* unused octets in time slot */
1437 };
1438 
1439 /* One Time Unit (TU) is 1Kus = 1024 microseconds. */
1440 #define IEEE80211_DUR_TU		1024
1441 
1442 /* IEEE 802.11b durations for DSSS PHY in microseconds */
1443 #define IEEE80211_DUR_DS_LONG_PREAMBLE	144
1444 #define IEEE80211_DUR_DS_SHORT_PREAMBLE	72
1445 
1446 #define IEEE80211_DUR_DS_SLOW_PLCPHDR	48
1447 #define IEEE80211_DUR_DS_FAST_PLCPHDR	24
1448 #define IEEE80211_DUR_DS_SLOW_ACK	112
1449 #define IEEE80211_DUR_DS_FAST_ACK	56
1450 #define IEEE80211_DUR_DS_SLOW_CTS	112
1451 #define IEEE80211_DUR_DS_FAST_CTS	56
1452 
1453 #define IEEE80211_DUR_DS_SLOT		20
1454 #define IEEE80211_DUR_DS_SIFS		10
1455 #define IEEE80211_DUR_DS_PIFS	(IEEE80211_DUR_DS_SIFS + IEEE80211_DUR_DS_SLOT)
1456 #define IEEE80211_DUR_DS_DIFS	(IEEE80211_DUR_DS_SIFS + \
1457 				 2 * IEEE80211_DUR_DS_SLOT)
1458 #define IEEE80211_DUR_DS_EIFS	(IEEE80211_DUR_DS_SIFS + \
1459 				 IEEE80211_DUR_DS_SLOW_ACK + \
1460 				 IEEE80211_DUR_DS_LONG_PREAMBLE + \
1461 				 IEEE80211_DUR_DS_SLOW_PLCPHDR + \
1462 				 IEEE80211_DUR_DIFS)
1463 
1464 #endif /* _NET80211_IEEE80211_H_ */
1465