1 /*-
2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
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 *
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.
25 *
26 * $FreeBSD$
27 */
28 #ifndef _NET80211__IEEE80211_H_
29 #define _NET80211__IEEE80211_H_
30
31 /*
32 * 802.11 implementation definitions.
33 *
34 * NB: this file is used by applications.
35 */
36
37 /*
38 * PHY type; mostly used to identify FH phys.
39 */
40 enum ieee80211_phytype {
41 IEEE80211_T_DS, /* direct sequence spread spectrum */
42 IEEE80211_T_FH, /* frequency hopping */
43 IEEE80211_T_OFDM, /* frequency division multiplexing */
44 IEEE80211_T_TURBO, /* high rate OFDM, aka turbo mode */
45 IEEE80211_T_HT, /* high throughput */
46 IEEE80211_T_OFDM_HALF, /* 1/2 rate OFDM */
47 IEEE80211_T_OFDM_QUARTER, /* 1/4 rate OFDM */
48 };
49 #define IEEE80211_T_CCK IEEE80211_T_DS /* more common nomenclature */
50
51 /*
52 * PHY mode; this is not really a mode as multi-mode devices
53 * have multiple PHY's. Mode is mostly used as a shorthand
54 * for constraining which channels to consider in setting up
55 * operation. Modes used to be used more extensively when
56 * channels were identified as IEEE channel numbers.
57 */
58 enum ieee80211_phymode {
59 IEEE80211_MODE_AUTO = 0, /* autoselect */
60 IEEE80211_MODE_11A = 1, /* 5GHz, OFDM */
61 IEEE80211_MODE_11B = 2, /* 2GHz, CCK */
62 IEEE80211_MODE_11G = 3, /* 2GHz, OFDM */
63 IEEE80211_MODE_FH = 4, /* 2GHz, GFSK */
64 IEEE80211_MODE_TURBO_A = 5, /* 5GHz, OFDM, 2x clock */
65 IEEE80211_MODE_TURBO_G = 6, /* 2GHz, OFDM, 2x clock */
66 IEEE80211_MODE_STURBO_A = 7, /* 5GHz, OFDM, 2x clock, static */
67 IEEE80211_MODE_11NA = 8, /* 5GHz, w/ HT */
68 IEEE80211_MODE_11NG = 9, /* 2GHz, w/ HT */
69 IEEE80211_MODE_HALF = 10, /* OFDM, 1/2x clock */
70 IEEE80211_MODE_QUARTER = 11, /* OFDM, 1/4x clock */
71 };
72 #define IEEE80211_MODE_MAX (IEEE80211_MODE_QUARTER+1)
73
74 /*
75 * Operating mode. Devices do not necessarily support
76 * all modes; they indicate which are supported in their
77 * capabilities.
78 */
79 enum ieee80211_opmode {
80 IEEE80211_M_IBSS = 0, /* IBSS (adhoc) station */
81 IEEE80211_M_STA = 1, /* infrastructure station */
82 IEEE80211_M_WDS = 2, /* WDS link */
83 IEEE80211_M_AHDEMO = 3, /* Old lucent compatible adhoc demo */
84 IEEE80211_M_HOSTAP = 4, /* Software Access Point */
85 IEEE80211_M_MONITOR = 5, /* Monitor mode */
86 IEEE80211_M_MBSS = 6, /* MBSS (Mesh Point) link */
87 };
88 #define IEEE80211_OPMODE_MAX (IEEE80211_M_MBSS+1)
89
90 /*
91 * 802.11g/802.11n protection mode.
92 */
93 enum ieee80211_protmode {
94 IEEE80211_PROT_NONE = 0, /* no protection */
95 IEEE80211_PROT_CTSONLY = 1, /* CTS to self */
96 IEEE80211_PROT_RTSCTS = 2, /* RTS-CTS */
97 };
98
99 /*
100 * Authentication mode. The open and shared key authentication
101 * modes are implemented within the 802.11 layer. 802.1x and
102 * WPA/802.11i are implemented in user mode by setting the
103 * 802.11 layer into IEEE80211_AUTH_8021X and deferring
104 * authentication to user space programs.
105 */
106 enum ieee80211_authmode {
107 IEEE80211_AUTH_NONE = 0,
108 IEEE80211_AUTH_OPEN = 1, /* open */
109 IEEE80211_AUTH_SHARED = 2, /* shared-key */
110 IEEE80211_AUTH_8021X = 3, /* 802.1x */
111 IEEE80211_AUTH_AUTO = 4, /* auto-select/accept */
112 /* NB: these are used only for ioctls */
113 IEEE80211_AUTH_WPA = 5, /* WPA/RSN w/ 802.1x/PSK */
114 };
115
116 /*
117 * Roaming mode is effectively who controls the operation
118 * of the 802.11 state machine when operating as a station.
119 * State transitions are controlled either by the driver
120 * (typically when management frames are processed by the
121 * hardware/firmware), the host (auto/normal operation of
122 * the 802.11 layer), or explicitly through ioctl requests
123 * when applications like wpa_supplicant want control.
124 */
125 enum ieee80211_roamingmode {
126 IEEE80211_ROAMING_DEVICE= 0, /* driver/hardware control */
127 IEEE80211_ROAMING_AUTO = 1, /* 802.11 layer control */
128 IEEE80211_ROAMING_MANUAL= 2, /* application control */
129 };
130
131 /*
132 * Channels are specified by frequency and attributes.
133 */
134 struct ieee80211_channel {
135 uint32_t ic_flags; /* see below */
136 uint16_t ic_freq; /* setting in Mhz */
137 uint8_t ic_ieee; /* IEEE channel number */
138 int8_t ic_maxregpower; /* maximum regulatory tx power in dBm */
139 int8_t ic_maxpower; /* maximum tx power in .5 dBm */
140 int8_t ic_minpower; /* minimum tx power in .5 dBm */
141 uint8_t ic_state; /* dynamic state */
142 uint8_t ic_extieee; /* HT40 extension channel number */
143 int8_t ic_maxantgain; /* maximum antenna gain in .5 dBm */
144 uint8_t ic_pad;
145 uint16_t ic_devdata; /* opaque device/driver data */
146 };
147
148 #define IEEE80211_CHAN_MAX 256
149 #define IEEE80211_CHAN_BYTES 32 /* howmany(IEEE80211_CHAN_MAX, NBBY) */
150 #define IEEE80211_CHAN_ANY 0xffff /* token for ``any channel'' */
151 #define IEEE80211_CHAN_ANYC \
152 ((struct ieee80211_channel *) IEEE80211_CHAN_ANY)
153
154 /* channel attributes */
155 #define IEEE80211_CHAN_PRIV0 0x00000001 /* driver private bit 0 */
156 #define IEEE80211_CHAN_PRIV1 0x00000002 /* driver private bit 1 */
157 #define IEEE80211_CHAN_PRIV2 0x00000004 /* driver private bit 2 */
158 #define IEEE80211_CHAN_PRIV3 0x00000008 /* driver private bit 3 */
159 #define IEEE80211_CHAN_TURBO 0x00000010 /* Turbo channel */
160 #define IEEE80211_CHAN_CCK 0x00000020 /* CCK channel */
161 #define IEEE80211_CHAN_OFDM 0x00000040 /* OFDM channel */
162 #define IEEE80211_CHAN_2GHZ 0x00000080 /* 2 GHz spectrum channel. */
163 #define IEEE80211_CHAN_5GHZ 0x00000100 /* 5 GHz spectrum channel */
164 #define IEEE80211_CHAN_PASSIVE 0x00000200 /* Only passive scan allowed */
165 #define IEEE80211_CHAN_DYN 0x00000400 /* Dynamic CCK-OFDM channel */
166 #define IEEE80211_CHAN_GFSK 0x00000800 /* GFSK channel (FHSS PHY) */
167 #define IEEE80211_CHAN_GSM 0x00001000 /* 900 MHz spectrum channel */
168 #define IEEE80211_CHAN_STURBO 0x00002000 /* 11a static turbo channel only */
169 #define IEEE80211_CHAN_HALF 0x00004000 /* Half rate channel */
170 #define IEEE80211_CHAN_QUARTER 0x00008000 /* Quarter rate channel */
171 #define IEEE80211_CHAN_HT20 0x00010000 /* HT 20 channel */
172 #define IEEE80211_CHAN_HT40U 0x00020000 /* HT 40 channel w/ ext above */
173 #define IEEE80211_CHAN_HT40D 0x00040000 /* HT 40 channel w/ ext below */
174 #define IEEE80211_CHAN_DFS 0x00080000 /* DFS required */
175 #define IEEE80211_CHAN_4MSXMIT 0x00100000 /* 4ms limit on frame length */
176 #define IEEE80211_CHAN_NOADHOC 0x00200000 /* adhoc mode not allowed */
177 #define IEEE80211_CHAN_NOHOSTAP 0x00400000 /* hostap mode not allowed */
178 #define IEEE80211_CHAN_11D 0x00800000 /* 802.11d required */
179
180 #define IEEE80211_CHAN_HT40 (IEEE80211_CHAN_HT40U | IEEE80211_CHAN_HT40D)
181 #define IEEE80211_CHAN_HT (IEEE80211_CHAN_HT20 | IEEE80211_CHAN_HT40)
182
183 #define IEEE80211_CHAN_BITS \
184 "\2\1PRIV0\2PRIV2\3PRIV3\4PRIV4\5TURBO\6CCK\7OFDM\0102GHZ\0115GHZ" \
185 "\12PASSIVE\13DYN\14GFSK\15GSM\16STURBO\17HALF\20QUARTER\21HT20" \
186 "\22HT40U\23HT40D\24DFS\0254MSXMIT\26NOADHOC\27NOHOSTAP\03011D"
187
188 /*
189 * Useful combinations of channel characteristics.
190 */
191 #define IEEE80211_CHAN_FHSS \
192 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
193 #define IEEE80211_CHAN_A \
194 (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
195 #define IEEE80211_CHAN_B \
196 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
197 #define IEEE80211_CHAN_PUREG \
198 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
199 #define IEEE80211_CHAN_G \
200 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
201 #define IEEE80211_CHAN_108A \
202 (IEEE80211_CHAN_A | IEEE80211_CHAN_TURBO)
203 #define IEEE80211_CHAN_108G \
204 (IEEE80211_CHAN_PUREG | IEEE80211_CHAN_TURBO)
205 #define IEEE80211_CHAN_ST \
206 (IEEE80211_CHAN_108A | IEEE80211_CHAN_STURBO)
207
208 #define IEEE80211_CHAN_ALL \
209 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_GFSK | \
210 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN | \
211 IEEE80211_CHAN_HALF | IEEE80211_CHAN_QUARTER | \
212 IEEE80211_CHAN_HT)
213 #define IEEE80211_CHAN_ALLTURBO \
214 (IEEE80211_CHAN_ALL | IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO)
215
216 #define IEEE80211_IS_CHAN_FHSS(_c) \
217 (((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS)
218 #define IEEE80211_IS_CHAN_A(_c) \
219 (((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A)
220 #define IEEE80211_IS_CHAN_B(_c) \
221 (((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B)
222 #define IEEE80211_IS_CHAN_PUREG(_c) \
223 (((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG)
224 #define IEEE80211_IS_CHAN_G(_c) \
225 (((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G)
226 #define IEEE80211_IS_CHAN_ANYG(_c) \
227 (IEEE80211_IS_CHAN_PUREG(_c) || IEEE80211_IS_CHAN_G(_c))
228 #define IEEE80211_IS_CHAN_ST(_c) \
229 (((_c)->ic_flags & IEEE80211_CHAN_ST) == IEEE80211_CHAN_ST)
230 #define IEEE80211_IS_CHAN_108A(_c) \
231 (((_c)->ic_flags & IEEE80211_CHAN_108A) == IEEE80211_CHAN_108A)
232 #define IEEE80211_IS_CHAN_108G(_c) \
233 (((_c)->ic_flags & IEEE80211_CHAN_108G) == IEEE80211_CHAN_108G)
234
235 #define IEEE80211_IS_CHAN_2GHZ(_c) \
236 (((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0)
237 #define IEEE80211_IS_CHAN_5GHZ(_c) \
238 (((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0)
239 #define IEEE80211_IS_CHAN_PASSIVE(_c) \
240 (((_c)->ic_flags & IEEE80211_CHAN_PASSIVE) != 0)
241 #define IEEE80211_IS_CHAN_OFDM(_c) \
242 (((_c)->ic_flags & (IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN)) != 0)
243 #define IEEE80211_IS_CHAN_CCK(_c) \
244 (((_c)->ic_flags & (IEEE80211_CHAN_CCK | IEEE80211_CHAN_DYN)) != 0)
245 #define IEEE80211_IS_CHAN_GFSK(_c) \
246 (((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0)
247 #define IEEE80211_IS_CHAN_TURBO(_c) \
248 (((_c)->ic_flags & IEEE80211_CHAN_TURBO) != 0)
249 #define IEEE80211_IS_CHAN_STURBO(_c) \
250 (((_c)->ic_flags & IEEE80211_CHAN_STURBO) != 0)
251 #define IEEE80211_IS_CHAN_DTURBO(_c) \
252 (((_c)->ic_flags & \
253 (IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO)) == IEEE80211_CHAN_TURBO)
254 #define IEEE80211_IS_CHAN_HALF(_c) \
255 (((_c)->ic_flags & IEEE80211_CHAN_HALF) != 0)
256 #define IEEE80211_IS_CHAN_QUARTER(_c) \
257 (((_c)->ic_flags & IEEE80211_CHAN_QUARTER) != 0)
258 #define IEEE80211_IS_CHAN_FULL(_c) \
259 (((_c)->ic_flags & (IEEE80211_CHAN_QUARTER | IEEE80211_CHAN_HALF)) == 0)
260 #define IEEE80211_IS_CHAN_GSM(_c) \
261 (((_c)->ic_flags & IEEE80211_CHAN_GSM) != 0)
262 #define IEEE80211_IS_CHAN_HT(_c) \
263 (((_c)->ic_flags & IEEE80211_CHAN_HT) != 0)
264 #define IEEE80211_IS_CHAN_HT20(_c) \
265 (((_c)->ic_flags & IEEE80211_CHAN_HT20) != 0)
266 #define IEEE80211_IS_CHAN_HT40(_c) \
267 (((_c)->ic_flags & IEEE80211_CHAN_HT40) != 0)
268 #define IEEE80211_IS_CHAN_HT40U(_c) \
269 (((_c)->ic_flags & IEEE80211_CHAN_HT40U) != 0)
270 #define IEEE80211_IS_CHAN_HT40D(_c) \
271 (((_c)->ic_flags & IEEE80211_CHAN_HT40D) != 0)
272 #define IEEE80211_IS_CHAN_HTA(_c) \
273 (IEEE80211_IS_CHAN_5GHZ(_c) && \
274 ((_c)->ic_flags & IEEE80211_CHAN_HT) != 0)
275 #define IEEE80211_IS_CHAN_HTG(_c) \
276 (IEEE80211_IS_CHAN_2GHZ(_c) && \
277 ((_c)->ic_flags & IEEE80211_CHAN_HT) != 0)
278 #define IEEE80211_IS_CHAN_DFS(_c) \
279 (((_c)->ic_flags & IEEE80211_CHAN_DFS) != 0)
280 #define IEEE80211_IS_CHAN_NOADHOC(_c) \
281 (((_c)->ic_flags & IEEE80211_CHAN_NOADHOC) != 0)
282 #define IEEE80211_IS_CHAN_NOHOSTAP(_c) \
283 (((_c)->ic_flags & IEEE80211_CHAN_NOHOSTAP) != 0)
284 #define IEEE80211_IS_CHAN_11D(_c) \
285 (((_c)->ic_flags & IEEE80211_CHAN_11D) != 0)
286
287 #define IEEE80211_CHAN2IEEE(_c) (_c)->ic_ieee
288
289 /* dynamic state */
290 #define IEEE80211_CHANSTATE_RADAR 0x01 /* radar detected */
291 #define IEEE80211_CHANSTATE_CACDONE 0x02 /* CAC completed */
292 #define IEEE80211_CHANSTATE_CWINT 0x04 /* interference detected */
293 #define IEEE80211_CHANSTATE_NORADAR 0x10 /* post notify on radar clear */
294
295 #define IEEE80211_IS_CHAN_RADAR(_c) \
296 (((_c)->ic_state & IEEE80211_CHANSTATE_RADAR) != 0)
297 #define IEEE80211_IS_CHAN_CACDONE(_c) \
298 (((_c)->ic_state & IEEE80211_CHANSTATE_CACDONE) != 0)
299 #define IEEE80211_IS_CHAN_CWINT(_c) \
300 (((_c)->ic_state & IEEE80211_CHANSTATE_CWINT) != 0)
301
302 /* ni_chan encoding for FH phy */
303 #define IEEE80211_FH_CHANMOD 80
304 #define IEEE80211_FH_CHAN(set,pat) (((set)-1)*IEEE80211_FH_CHANMOD+(pat))
305 #define IEEE80211_FH_CHANSET(chan) ((chan)/IEEE80211_FH_CHANMOD+1)
306 #define IEEE80211_FH_CHANPAT(chan) ((chan)%IEEE80211_FH_CHANMOD)
307
308 #define IEEE80211_TID_SIZE (WME_NUM_TID+1) /* WME TID's +1 for non-QoS */
309 #define IEEE80211_NONQOS_TID WME_NUM_TID /* index for non-QoS sta */
310
311 /*
312 * The 802.11 spec says at most 2007 stations may be
313 * associated at once. For most AP's this is way more
314 * than is feasible so we use a default of 128. This
315 * number may be overridden by the driver and/or by
316 * user configuration but may not be less than IEEE80211_AID_MIN.
317 */
318 #define IEEE80211_AID_DEF 128
319 #define IEEE80211_AID_MIN 16
320
321 /*
322 * 802.11 rate set.
323 */
324 #define IEEE80211_RATE_SIZE 8 /* 802.11 standard */
325 #define IEEE80211_RATE_MAXSIZE 15 /* max rates we'll handle */
326
327 struct ieee80211_rateset {
328 uint8_t rs_nrates;
329 uint8_t rs_rates[IEEE80211_RATE_MAXSIZE];
330 };
331
332 /*
333 * 802.11n variant of ieee80211_rateset. Instead of
334 * legacy rates the entries are MCS rates. We define
335 * the structure such that it can be used interchangeably
336 * with an ieee80211_rateset (modulo structure size).
337 */
338 #define IEEE80211_HTRATE_MAXSIZE 127
339
340 struct ieee80211_htrateset {
341 uint8_t rs_nrates;
342 uint8_t rs_rates[IEEE80211_HTRATE_MAXSIZE];
343 };
344
345 #define IEEE80211_RATE_MCS 0x80
346
347 /*
348 * Per-mode transmit parameters/controls visible to user space.
349 * These can be used to set fixed transmit rate for all operating
350 * modes or on a per-client basis according to the capabilities
351 * of the client (e.g. an 11b client associated to an 11g ap).
352 *
353 * MCS are distinguished from legacy rates by or'ing in 0x80.
354 */
355 struct ieee80211_txparam {
356 uint8_t ucastrate; /* ucast data rate (legacy/MCS|0x80) */
357 uint8_t mgmtrate; /* mgmt frame rate (legacy/MCS|0x80) */
358 uint8_t mcastrate; /* multicast rate (legacy/MCS|0x80) */
359 uint8_t maxretry; /* max unicast data retry count */
360 };
361
362 /*
363 * Per-mode roaming state visible to user space. There are two
364 * thresholds that control whether roaming is considered; when
365 * either is exceeded the 802.11 layer will check the scan cache
366 * for another AP. If the cache is stale then a scan may be
367 * triggered.
368 */
369 struct ieee80211_roamparam {
370 int8_t rssi; /* rssi thresh (.5 dBm) */
371 uint8_t rate; /* tx rate thresh (.5 Mb/s or MCS) */
372 uint16_t pad; /* reserve */
373 };
374
375 /*
376 * Regulatory Information.
377 */
378 struct ieee80211_regdomain {
379 uint16_t regdomain; /* SKU */
380 uint16_t country; /* ISO country code */
381 uint8_t location; /* I (indoor), O (outdoor), other */
382 uint8_t ecm; /* Extended Channel Mode */
383 char isocc[2]; /* country code string */
384 short pad[2];
385 };
386
387 /*
388 * MIMO antenna/radio state.
389 */
390 struct ieee80211_mimo_info {
391 int8_t rssi[3]; /* per-antenna rssi */
392 int8_t noise[3]; /* per-antenna noise floor */
393 uint8_t pad[2];
394 uint32_t evm[3]; /* EVM data */
395 };
396 #endif /* _NET80211__IEEE80211_H_ */
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