1 /*-
2  * Copyright (c) 2001 Atsushi Onoe
3  * Copyright (c) 2002-2005 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  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * Alternatively, this software may be distributed under the terms of the
18  * GNU General Public License ("GPL") version 2 as published by the Free
19  * Software Foundation.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  *
32  * $FreeBSD: src/sys/net80211/_ieee80211.h,v 1.3 2005/08/10 17:42:13 sam Exp $
33  */
34 #ifndef _NET80211__IEEE80211_H_
35 #define _NET80211__IEEE80211_H_
36 
37 enum ieee80211_phytype {
38 	IEEE80211_T_DS,			/* direct sequence spread spectrum */
39 	IEEE80211_T_FH,			/* frequency hopping */
40 	IEEE80211_T_OFDM,		/* frequency division multiplexing */
41 	IEEE80211_T_TURBO		/* high rate OFDM, aka turbo mode */
42 };
43 #define	IEEE80211_T_CCK	IEEE80211_T_DS	/* more common nomenclature */
44 
45 /* XXX not really a mode; there are really multiple PHY's */
46 enum ieee80211_phymode {
47 	IEEE80211_MODE_AUTO	= 0,	/* autoselect */
48 	IEEE80211_MODE_11A	= 1,	/* 5GHz, OFDM */
49 	IEEE80211_MODE_11B	= 2,	/* 2GHz, CCK */
50 	IEEE80211_MODE_11G	= 3,	/* 2GHz, OFDM */
51 	IEEE80211_MODE_FH	= 4,	/* 2GHz, GFSK */
52 	IEEE80211_MODE_TURBO_A	= 5,	/* 5GHz, OFDM, 2x clock */
53 	IEEE80211_MODE_TURBO_G	= 6	/* 2GHz, OFDM, 2x clock */
54 };
55 #define	IEEE80211_MODE_MAX	((int)IEEE80211_MODE_TURBO_G + 1)
56 
57 enum ieee80211_opmode {
58 	IEEE80211_M_STA		= 1,	/* infrastructure station */
59 	IEEE80211_M_IBSS 	= 0,	/* IBSS (adhoc) station */
60 	IEEE80211_M_AHDEMO	= 3,	/* Old lucent compatible adhoc demo */
61 	IEEE80211_M_HOSTAP	= 6,	/* Software Access Point */
62 	IEEE80211_M_MONITOR	= 8	/* Monitor mode */
63 };
64 
65 /*
66  * 802.11g protection mode.
67  */
68 enum ieee80211_protmode {
69 	IEEE80211_PROT_NONE	= 0,	/* no protection */
70 	IEEE80211_PROT_CTSONLY	= 1,	/* CTS to self */
71 	IEEE80211_PROT_RTSCTS	= 2	/* RTS-CTS */
72 };
73 
74 /*
75  * Authentication mode.
76  */
77 enum ieee80211_authmode {
78 	IEEE80211_AUTH_NONE	= 0,
79 	IEEE80211_AUTH_OPEN	= 1,		/* open */
80 	IEEE80211_AUTH_SHARED	= 2,		/* shared-key */
81 	IEEE80211_AUTH_8021X	= 3,		/* 802.1x */
82 	IEEE80211_AUTH_AUTO	= 4,		/* auto-select/accept */
83 	/* NB: these are used only for ioctls */
84 	IEEE80211_AUTH_WPA	= 5		/* WPA/RSN w/ 802.1x/PSK */
85 };
86 
87 /*
88  * Roaming mode is effectively who controls the operation
89  * of the 802.11 state machine when operating as a station.
90  * State transitions are controlled either by the driver
91  * (typically when management frames are processed by the
92  * hardware/firmware), the host (auto/normal operation of
93  * the 802.11 layer), or explicitly through ioctl requests
94  * when applications like wpa_supplicant want control.
95  */
96 enum ieee80211_roamingmode {
97 	IEEE80211_ROAMING_DEVICE= 0,	/* driver/hardware control */
98 	IEEE80211_ROAMING_AUTO	= 1,	/* 802.11 layer control */
99 	IEEE80211_ROAMING_MANUAL= 2	/* application control */
100 };
101 
102 /*
103  * Channels are specified by frequency and attributes.
104  */
105 struct ieee80211_channel {
106 	u_int16_t	ic_freq;	/* setting in MHz */
107 	u_int16_t	ic_flags;	/* see below */
108 };
109 
110 extern const struct ieee80211_channel ieee80211_channel_anyc;
111 
112 #define	IEEE80211_CHAN_MAX	255
113 #define	IEEE80211_CHAN_BYTES	32	/* howmany(IEEE80211_CHAN_MAX, NBBY) */
114 #define	IEEE80211_CHAN_ANY	0xffff	/* token for ``any channel'' */
115 #define	IEEE80211_CHAN_ANYC 	(__UNCONST(&ieee80211_channel_anyc))
116 
117 /* bits 0-3 are for private use by drivers */
118 /* channel attributes */
119 #define	IEEE80211_CHAN_TURBO	0x0010	/* Turbo channel */
120 #define	IEEE80211_CHAN_CCK	0x0020	/* CCK channel */
121 #define	IEEE80211_CHAN_OFDM	0x0040	/* OFDM channel */
122 #define	IEEE80211_CHAN_2GHZ	0x0080	/* 2 GHz spectrum channel. */
123 #define	IEEE80211_CHAN_5GHZ	0x0100	/* 5 GHz spectrum channel */
124 #define	IEEE80211_CHAN_PASSIVE	0x0200	/* Only passive scan allowed */
125 #define	IEEE80211_CHAN_DYN	0x0400	/* Dynamic CCK-OFDM channel */
126 #define	IEEE80211_CHAN_GFSK	0x0800	/* GFSK channel (FHSS PHY) */
127 #define	IEEE80211_CHAN_GSM	0x1000	/* 900 MHz spectrum channel */
128 #define	IEEE80211_CHAN_HALF	0x4000	/* Half rate channel */
129 #define	IEEE80211_CHAN_QUARTER	0x8000	/* Quarter rate channel */
130 
131 /*
132  * Useful combinations of channel characteristics.
133  */
134 #define	IEEE80211_CHAN_FHSS \
135 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
136 #define	IEEE80211_CHAN_A \
137 	(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
138 #define	IEEE80211_CHAN_B \
139 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
140 #define	IEEE80211_CHAN_PUREG \
141 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
142 #define	IEEE80211_CHAN_G \
143 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
144 #define	IEEE80211_CHAN_T \
145 	(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
146 #define	IEEE80211_CHAN_108G \
147 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
148 
149 #define	IEEE80211_CHAN_ALL \
150 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_GFSK | \
151 	 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN)
152 #define	IEEE80211_CHAN_ALLTURBO \
153 	(IEEE80211_CHAN_ALL | IEEE80211_CHAN_TURBO)
154 
155 #define IEEE80211_IS_CHAN_ANYC(_c) \
156 	((_c) == IEEE80211_CHAN_ANYC)
157 
158 #define _IEEE80211_IS_CHAN(_c, _ch) \
159 	(((_c)->ic_flags & IEEE80211_CHAN_ ## _ch) == IEEE80211_CHAN_ ## _ch)
160 
161 #define	IEEE80211_IS_CHAN_FHSS(_c)	_IEEE80211_IS_CHAN(_c, FHSS)
162 #define	IEEE80211_IS_CHAN_A(_c)		_IEEE80211_IS_CHAN(_c, A)
163 #define	IEEE80211_IS_CHAN_B(_c)		_IEEE80211_IS_CHAN(_c, B)
164 #define	IEEE80211_IS_CHAN_PUREG(_c)	_IEEE80211_IS_CHAN(_c, PUREG)
165 #define	IEEE80211_IS_CHAN_G(_c)		_IEEE80211_IS_CHAN(_c, G)
166 #define	IEEE80211_IS_CHAN_ANYG(_c)	_IEEE80211_IS_CHAN(_c, ANYG)
167 #define	IEEE80211_IS_CHAN_T(_c)		_IEEE80211_IS_CHAN(_c, T)
168 #define	IEEE80211_IS_CHAN_108G(_c)	_IEEE80211_IS_CHAN(_c, 108G)
169 
170 #define	IEEE80211_IS_CHAN_2GHZ(_c) 	_IEEE80211_IS_CHAN(_c, 2GHZ)
171 #define	IEEE80211_IS_CHAN_5GHZ(_c) 	_IEEE80211_IS_CHAN(_c, 5GHZ)
172 #define	IEEE80211_IS_CHAN_OFDM(_c) 	_IEEE80211_IS_CHAN(_c, OFDM)
173 #define	IEEE80211_IS_CHAN_CCK(_c) 	_IEEE80211_IS_CHAN(_c, CCK)
174 #define	IEEE80211_IS_CHAN_GFSK(_c) 	_IEEE80211_IS_CHAN(_c, GFSK)
175 #define	IEEE80211_IS_CHAN_HALF(_c) 	_IEEE80211_IS_CHAN(_c, HALF)
176 #define	IEEE80211_IS_CHAN_QUARTER(_c) 	_IEEE80211_IS_CHAN(_c, QUARTER)
177 #define	IEEE80211_IS_CHAN_FULL(_c) \
178 	(!IEEE80211_IS_CHAN_ANYC(_c) && \
179 	((_c)->ic_flags & (IEEE80211_CHAN_QUARTER | IEEE80211_CHAN_HALF)) == 0)
180 
181 #define	IEEE80211_IS_CHAN_GSM(_c) 	_IEEE80211_IS_CHAN(_c, GSM)
182 #define	IEEE80211_IS_CHAN_PASSIVE(_c) 	_IEEE80211_IS_CHAN(_c, PASSIVE)
183 
184 
185 /* ni_chan encoding for FH phy */
186 #define	IEEE80211_FH_CHANMOD	80
187 #define	IEEE80211_FH_CHAN(set,pat)	(((set)-1)*IEEE80211_FH_CHANMOD+(pat))
188 #define	IEEE80211_FH_CHANSET(chan)	((chan)/IEEE80211_FH_CHANMOD+1)
189 #define	IEEE80211_FH_CHANPAT(chan)	((chan)%IEEE80211_FH_CHANMOD)
190 
191 /*
192  * 802.11 rate set.
193  */
194 #define	IEEE80211_RATE_SIZE	8		/* 802.11 standard */
195 #define	IEEE80211_RATE_MAXSIZE	15		/* max rates we'll handle */
196 
197 struct ieee80211_rateset {
198 	u_int8_t		rs_nrates;
199 	u_int8_t		rs_rates[IEEE80211_RATE_MAXSIZE];
200 };
201 
202 extern const struct ieee80211_rateset ieee80211_std_rateset_11a;
203 extern const struct ieee80211_rateset ieee80211_std_rateset_11b;
204 extern const struct ieee80211_rateset ieee80211_std_rateset_11g;
205 
206 #endif /* !_NET80211__IEEE80211_H_ */
207