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_ieee80211.h

/*-
 * Copyright (c) 2001 Atsushi Onoe
 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $Id: _ieee80211.h 2749 2007-10-16 08:58:14Z kelmo $
 */
#ifndef _NET80211__IEEE80211_H_
#define _NET80211__IEEE80211_H_

enum ieee80211_phytype {
      IEEE80211_T_DS,               /* direct sequence spread spectrum */
      IEEE80211_T_FH,               /* frequency hopping */
      IEEE80211_T_OFDM,       /* frequency division multiplexing */
      IEEE80211_T_TURBO,            /* high rate OFDM, aka turbo mode */
};
#define     IEEE80211_T_CCK   IEEE80211_T_DS    /* more common nomenclature */

/* XXX not really a mode; there are really multiple PHY's */
enum ieee80211_phymode {
      IEEE80211_MODE_AUTO     = 0,  /* autoselect */
      IEEE80211_MODE_11A      = 1,  /* 5GHz, OFDM */
      IEEE80211_MODE_11B      = 2,  /* 2GHz, CCK */
      IEEE80211_MODE_11G      = 3,  /* 2GHz, OFDM */
      IEEE80211_MODE_FH = 4,  /* 2GHz, GFSK */
      IEEE80211_MODE_TURBO_A  = 5,  /* 5GHz, OFDM, 2x clock dynamic turbo */
      IEEE80211_MODE_TURBO_G  = 6,  /* 2GHz, OFDM, 2x clock  dynamic turbo*/
};
#define     IEEE80211_MODE_MAX      (IEEE80211_MODE_TURBO_G+1)

enum ieee80211_opmode {
      IEEE80211_M_STA         = 1,  /* infrastructure station */
      IEEE80211_M_IBSS  = 0,  /* IBSS (adhoc) station */
      IEEE80211_M_AHDEMO      = 3,  /* Old lucent compatible adhoc demo */
      IEEE80211_M_HOSTAP      = 6,  /* Software Access Point */
      IEEE80211_M_MONITOR     = 8,  /* Monitor mode */
      IEEE80211_M_WDS         = 2   /* WDS link */
};

/*
 * 802.11g protection mode.
 */
enum ieee80211_protmode {
      IEEE80211_PROT_NONE     = 0,  /* no protection */
      IEEE80211_PROT_CTSONLY  = 1,  /* CTS to self */
      IEEE80211_PROT_RTSCTS   = 2,  /* RTS-CTS */
};

/*
 * Authentication mode.
 */
enum ieee80211_authmode {
      IEEE80211_AUTH_NONE     = 0,
      IEEE80211_AUTH_OPEN     = 1,  /* open */
      IEEE80211_AUTH_SHARED   = 2,  /* shared-key */
      IEEE80211_AUTH_8021X    = 3,  /* 802.1x */
      IEEE80211_AUTH_AUTO     = 4,  /* auto-select/accept */
      /* NB: these are used only for ioctls */
      IEEE80211_AUTH_WPA      = 5,  /* WPA/RSN w/ 802.1x/PSK */
};

/*
 * Roaming mode is effectively who controls the operation
 * of the 802.11 state machine when operating as a station.
 * State transitions are controlled either by the driver
 * (typically when management frames are processed by the
 * hardware/firmware), the host (auto/normal operation of
 * the 802.11 layer), or explicitly through ioctl requests
 * when applications like wpa_supplicant want control.
 */
enum ieee80211_roamingmode {
      IEEE80211_ROAMING_DEVICE= 0,  /* driver/hardware control */
      IEEE80211_ROAMING_AUTO  = 1,  /* 802.11 layer control */
      IEEE80211_ROAMING_MANUAL= 2,  /* application control */
};

/*
 * Scanning mode controls station scanning work; this is
 * used only when roaming mode permits the host to select
 * the bss to join/channel to use.
 */
enum ieee80211_scanmode {
      IEEE80211_SCAN_DEVICE   = 0,  /* driver/hardware control */
      IEEE80211_SCAN_BEST     = 1,  /* 802.11 layer selects best */
      IEEE80211_SCAN_FIRST    = 2,  /* take first suitable candidate */
};

/*
 * Channels are specified by frequency and attributes.
 */
struct ieee80211_channel {
      u_int16_t ic_freq;      /* setting in Mhz */
      u_int16_t ic_flags;     /* see below */
      u_int8_t ic_ieee; /* IEEE channel number */
      int8_t ic_maxregpower;  /* maximum regulatory tx power in dBm */
      int8_t ic_maxpower;     /* maximum tx power in dBm */
      int8_t ic_minpower;     /* minimum tx power in dBm */
};

#define     IEEE80211_CHAN_MAX      255
#define     IEEE80211_CHAN_BYTES    32    /* howmany(IEEE80211_CHAN_MAX, NBBY) */
#define     IEEE80211_CHAN_ANY      0xffff      /* token for ``any channel'' */
#define     IEEE80211_CHAN_ANYC     ((struct ieee80211_channel *) IEEE80211_CHAN_ANY)

#define     IEEE80211_RADAR_11HCOUNT            1
#define IEEE80211_DEFAULT_CHANCHANGE_TBTT_COUNT 3
#define     IEEE80211_RADAR_TEST_MUTE_CHAN      36    /* Move to channel 36 for mute test */

/* bits 0-3 are for private use by drivers */
/* channel attributes */
#define     IEEE80211_CHAN_TURBO    0x0010      /* Turbo channel */
#define     IEEE80211_CHAN_CCK      0x0020      /* CCK channel */
#define     IEEE80211_CHAN_OFDM     0x0040      /* OFDM channel */
#define     IEEE80211_CHAN_2GHZ     0x0080      /* 2 GHz spectrum channel. */
#define     IEEE80211_CHAN_5GHZ     0x0100      /* 5 GHz spectrum channel */
#define     IEEE80211_CHAN_PASSIVE  0x0200      /* Only passive scan allowed */
#define     IEEE80211_CHAN_DYN      0x0400      /* Dynamic CCK-OFDM channel */
#define     IEEE80211_CHAN_GFSK     0x0800      /* GFSK channel (FHSS PHY) */
#define IEEE80211_CHAN_RADAR  0x1000      /* Radar found on channel */
#define     IEEE80211_CHAN_STURBO   0x2000      /* 11a static turbo channel only */
#define     IEEE80211_CHAN_HALF     0x4000      /* Half rate channel */
#define     IEEE80211_CHAN_QUARTER  0x8000      /* Quarter rate channel */

/*
 * Useful combinations of channel characteristics.
 */
#define     IEEE80211_CHAN_FHSS \
      (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
#define     IEEE80211_CHAN_A \
      (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
#define     IEEE80211_CHAN_B \
      (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
#define     IEEE80211_CHAN_PUREG \
      (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
#define     IEEE80211_CHAN_G \
      (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
#define IEEE80211_CHAN_108A \
      (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
#define     IEEE80211_CHAN_108G \
      (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
#define     IEEE80211_CHAN_ST \
      (IEEE80211_CHAN_108A | IEEE80211_CHAN_STURBO)

#define     IEEE80211_CHAN_ALL \
      (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_GFSK | \
       IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN)
#define     IEEE80211_CHAN_ALLTURBO \
      (IEEE80211_CHAN_ALL | IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO)

#define     IEEE80211_IS_CHAN_FHSS(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS)
#define     IEEE80211_IS_CHAN_A(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A)
#define     IEEE80211_IS_CHAN_B(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B)
#define     IEEE80211_IS_CHAN_PUREG(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG)
#define     IEEE80211_IS_CHAN_G(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G)
#define     IEEE80211_IS_CHAN_ANYG(_c) \
      (IEEE80211_IS_CHAN_PUREG(_c) || IEEE80211_IS_CHAN_G(_c))
#define     IEEE80211_IS_CHAN_ST(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_ST) == IEEE80211_CHAN_ST)
#define     IEEE80211_IS_CHAN_108A(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_108A) == IEEE80211_CHAN_108A)
#define     IEEE80211_IS_CHAN_108G(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_108G) == IEEE80211_CHAN_108G)

#define     IEEE80211_IS_CHAN_2GHZ(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0)
#define     IEEE80211_IS_CHAN_5GHZ(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0)
#define     IEEE80211_IS_CHAN_OFDM(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0)
#define     IEEE80211_IS_CHAN_CCK(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0)
#define     IEEE80211_IS_CHAN_GFSK(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0)
#define     IEEE80211_IS_CHAN_TURBO(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_TURBO) != 0)
#define     IEEE80211_IS_CHAN_STURBO(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_STURBO) != 0)
#define     IEEE80211_IS_CHAN_DTURBO(_c) \
      (((_c)->ic_flags & \
      (IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO)) == IEEE80211_CHAN_TURBO)
#define     IEEE80211_IS_CHAN_HALF(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_HALF) != 0)
#define     IEEE80211_IS_CHAN_QUARTER(_c) \
      (((_c)->ic_flags & IEEE80211_CHAN_QUARTER) != 0)

/* ni_chan encoding for FH phy */
#define     IEEE80211_FH_CHANMOD          80
#define     IEEE80211_FH_CHAN(set,pat)    (((set) - 1) * IEEE80211_FH_CHANMOD + (pat))
#define     IEEE80211_FH_CHANSET(chan)    ((chan) / IEEE80211_FH_CHANMOD + 1)
#define     IEEE80211_FH_CHANPAT(chan)    ((chan) % IEEE80211_FH_CHANMOD)

/*
 * 802.11 rate set.
 */
#define     IEEE80211_RATE_SIZE     8           /* 802.11 standard */
#define     IEEE80211_RATE_MAXSIZE  15          /* max rates we'll handle */
#define     IEEE80211_SANITISE_RATESIZE(_rsz) \
      ((_rsz > IEEE80211_RATE_MAXSIZE) ? IEEE80211_RATE_MAXSIZE : _rsz)

struct ieee80211_rateset {
      u_int8_t rs_nrates;
      u_int8_t rs_rates[IEEE80211_RATE_MAXSIZE];
};

struct ieee80211_roam {
      int8_t rssi11a;         /* rssi thresh for 11a bss */
      int8_t rssi11b;         /* for 11g sta in 11b bss */
      int8_t rssi11bOnly;     /* for 11b sta */
      u_int8_t pad1;
      u_int8_t rate11a; /* rate thresh for 11a bss */
      u_int8_t rate11b; /* for 11g sta in 11b bss */
      u_int8_t rate11bOnly;   /* for 11b sta */
      u_int8_t pad2;
};
#endif /* _NET80211__IEEE80211_H_ */

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