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_ieee80211.h revision 1.1
      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 1.2 2004/12/31 22:42:38 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	(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 #define	IEEE80211_CHAN_MAX	255
    111 #define	IEEE80211_CHAN_BYTES	32	/* howmany(IEEE80211_CHAN_MAX, NBBY) */
    112 #define	IEEE80211_CHAN_ANY	0xffff	/* token for ``any channel'' */
    113 #define	IEEE80211_CHAN_ANYC \
    114 	((struct ieee80211_channel *) IEEE80211_CHAN_ANY)
    115 
    116 /* bits 0-3 are for private use by drivers */
    117 /* channel attributes */
    118 #define	IEEE80211_CHAN_TURBO	0x0010	/* Turbo channel */
    119 #define	IEEE80211_CHAN_CCK	0x0020	/* CCK channel */
    120 #define	IEEE80211_CHAN_OFDM	0x0040	/* OFDM channel */
    121 #define	IEEE80211_CHAN_2GHZ	0x0080	/* 2 GHz spectrum channel. */
    122 #define	IEEE80211_CHAN_5GHZ	0x0100	/* 5 GHz spectrum channel */
    123 #define	IEEE80211_CHAN_PASSIVE	0x0200	/* Only passive scan allowed */
    124 #define	IEEE80211_CHAN_DYN	0x0400	/* Dynamic CCK-OFDM channel */
    125 #define	IEEE80211_CHAN_GFSK	0x0800	/* GFSK channel (FHSS PHY) */
    126 
    127 /*
    128  * Useful combinations of channel characteristics.
    129  */
    130 #define	IEEE80211_CHAN_FHSS \
    131 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
    132 #define	IEEE80211_CHAN_A \
    133 	(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
    134 #define	IEEE80211_CHAN_B \
    135 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
    136 #define	IEEE80211_CHAN_PUREG \
    137 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
    138 #define	IEEE80211_CHAN_G \
    139 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
    140 #define	IEEE80211_CHAN_T \
    141 	(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
    142 #define	IEEE80211_CHAN_108G \
    143 	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
    144 
    145 #define	IEEE80211_IS_CHAN_FHSS(_c) \
    146 	(((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS)
    147 #define	IEEE80211_IS_CHAN_A(_c) \
    148 	(((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A)
    149 #define	IEEE80211_IS_CHAN_B(_c) \
    150 	(((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B)
    151 #define	IEEE80211_IS_CHAN_PUREG(_c) \
    152 	(((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG)
    153 #define	IEEE80211_IS_CHAN_G(_c) \
    154 	(((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G)
    155 #define	IEEE80211_IS_CHAN_T(_c) \
    156 	(((_c)->ic_flags & IEEE80211_CHAN_T) == IEEE80211_CHAN_T)
    157 #define	IEEE80211_IS_CHAN_108G(_c) \
    158 	(((_c)->ic_flags & IEEE80211_CHAN_108G) == IEEE80211_CHAN_108G)
    159 
    160 #define	IEEE80211_IS_CHAN_2GHZ(_c) \
    161 	(((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0)
    162 #define	IEEE80211_IS_CHAN_5GHZ(_c) \
    163 	(((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0)
    164 #define	IEEE80211_IS_CHAN_OFDM(_c) \
    165 	(((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0)
    166 #define	IEEE80211_IS_CHAN_CCK(_c) \
    167 	(((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0)
    168 #define	IEEE80211_IS_CHAN_GFSK(_c) \
    169 	(((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0)
    170 
    171 /* ni_chan encoding for FH phy */
    172 #define	IEEE80211_FH_CHANMOD	80
    173 #define	IEEE80211_FH_CHAN(set,pat)	(((set)-1)*IEEE80211_FH_CHANMOD+(pat))
    174 #define	IEEE80211_FH_CHANSET(chan)	((chan)/IEEE80211_FH_CHANMOD+1)
    175 #define	IEEE80211_FH_CHANPAT(chan)	((chan)%IEEE80211_FH_CHANMOD)
    176 
    177 /*
    178  * 802.11 rate set.
    179  */
    180 #define	IEEE80211_RATE_SIZE	8		/* 802.11 standard */
    181 #define	IEEE80211_RATE_MAXSIZE	15		/* max rates we'll handle */
    182 
    183 struct ieee80211_rateset {
    184 	u_int8_t		rs_nrates;
    185 	u_int8_t		rs_rates[IEEE80211_RATE_MAXSIZE];
    186 };
    187 
    188 #endif /* _NET80211__IEEE80211_H_ */
    189