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FreeBSD/Linux Kernel Cross Reference
sys/net80211/_ieee80211.h

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    1 /*-
    2  * Copyright (c) 2001 Atsushi Onoe
    3  * Copyright (c) 2002-2007 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 enum ieee80211_phytype {
   32         IEEE80211_T_DS,                 /* direct sequence spread spectrum */
   33         IEEE80211_T_FH,                 /* frequency hopping */
   34         IEEE80211_T_OFDM,               /* frequency division multiplexing */
   35         IEEE80211_T_TURBO,              /* high rate OFDM, aka turbo mode */
   36         IEEE80211_T_HT,                 /* high throughput, full GI */
   37 };
   38 #define IEEE80211_T_CCK IEEE80211_T_DS  /* more common nomenclature */
   39 
   40 /* XXX not really a mode; there are really multiple PHY's */
   41 enum ieee80211_phymode {
   42         IEEE80211_MODE_AUTO     = 0,    /* autoselect */
   43         IEEE80211_MODE_11A      = 1,    /* 5GHz, OFDM */
   44         IEEE80211_MODE_11B      = 2,    /* 2GHz, CCK */
   45         IEEE80211_MODE_11G      = 3,    /* 2GHz, OFDM */
   46         IEEE80211_MODE_FH       = 4,    /* 2GHz, GFSK */
   47         IEEE80211_MODE_TURBO_A  = 5,    /* 5GHz, OFDM, 2x clock */
   48         IEEE80211_MODE_TURBO_G  = 6,    /* 2GHz, OFDM, 2x clock */
   49         IEEE80211_MODE_STURBO_A = 7,    /* 5GHz, OFDM, 2x clock, static */
   50         IEEE80211_MODE_11NA     = 8,    /* 5GHz, w/ HT */
   51         IEEE80211_MODE_11NG     = 9,    /* 2GHz, w/ HT */
   52 };
   53 #define IEEE80211_MODE_MAX      (IEEE80211_MODE_11NG+1)
   54 
   55 enum ieee80211_opmode {
   56         IEEE80211_M_STA         = 1,    /* infrastructure station */
   57         IEEE80211_M_IBSS        = 0,    /* IBSS (adhoc) station */
   58         IEEE80211_M_AHDEMO      = 3,    /* Old lucent compatible adhoc demo */
   59         IEEE80211_M_HOSTAP      = 6,    /* Software Access Point */
   60         IEEE80211_M_MONITOR     = 8,    /* Monitor mode */
   61         IEEE80211_M_WDS         = 2     /* WDS link */
   62 };
   63 #define IEEE80211_OPMODE_MAX    (IEEE80211_M_MONITOR+1)
   64 
   65 /*
   66  * 802.11g/802.11n 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         uint32_t        ic_flags;       /* see below */
  107         uint16_t        ic_freq;        /* setting in Mhz */
  108         uint8_t         ic_ieee;        /* IEEE channel number */
  109         int8_t          ic_maxregpower; /* maximum regulatory tx power in dBm */
  110         int8_t          ic_maxpower;    /* maximum tx power in .5 dBm */
  111         int8_t          ic_minpower;    /* minimum tx power in .5 dBm */
  112         uint8_t         ic_state;       /* dynamic state */
  113         uint8_t         ic_extieee;     /* HT40 extension channel number */
  114 };
  115 
  116 #define IEEE80211_CHAN_MAX      255
  117 #define IEEE80211_CHAN_BYTES    32      /* howmany(IEEE80211_CHAN_MAX, NBBY) */
  118 #define IEEE80211_CHAN_ANY      0xffff  /* token for ``any channel'' */
  119 #define IEEE80211_CHAN_ANYC \
  120         ((struct ieee80211_channel *) IEEE80211_CHAN_ANY)
  121 
  122 /* bits 0-3 are for private use by drivers */
  123 /* channel attributes */
  124 #define IEEE80211_CHAN_TURBO    0x00000010 /* Turbo channel */
  125 #define IEEE80211_CHAN_CCK      0x00000020 /* CCK channel */
  126 #define IEEE80211_CHAN_OFDM     0x00000040 /* OFDM channel */
  127 #define IEEE80211_CHAN_2GHZ     0x00000080 /* 2 GHz spectrum channel. */
  128 #define IEEE80211_CHAN_5GHZ     0x00000100 /* 5 GHz spectrum channel */
  129 #define IEEE80211_CHAN_PASSIVE  0x00000200 /* Only passive scan allowed */
  130 #define IEEE80211_CHAN_DYN      0x00000400 /* Dynamic CCK-OFDM channel */
  131 #define IEEE80211_CHAN_GFSK     0x00000800 /* GFSK channel (FHSS PHY) */
  132 #define IEEE80211_CHAN_GSM      0x00001000 /* 900 MHz spectrum channel */
  133 #define IEEE80211_CHAN_STURBO   0x00002000 /* 11a static turbo channel only */
  134 #define IEEE80211_CHAN_HALF     0x00004000 /* Half rate channel */
  135 #define IEEE80211_CHAN_QUARTER  0x00008000 /* Quarter rate channel */
  136 #define IEEE80211_CHAN_HT20     0x00010000 /* HT 20 channel */
  137 #define IEEE80211_CHAN_HT40U    0x00020000 /* HT 40 channel w/ ext above */
  138 #define IEEE80211_CHAN_HT40D    0x00040000 /* HT 40 channel w/ ext below */
  139 #define IEEE80211_CHAN_DFS      0x00080000 /* DFS required */
  140 #define IEEE80211_CHAN_4MSXMIT  0x00100000 /* 4ms limit on frame length */
  141 #define IEEE80211_CHAN_NOADHOC  0x00200000 /* adhoc mode not allowed */
  142 #define IEEE80211_CHAN_NOHOSTAP 0x00400000 /* hostap mode not allowed */
  143 #define IEEE80211_CHAN_11D      0x00800000 /* 802.11d required */
  144 
  145 #define IEEE80211_CHAN_HT40     (IEEE80211_CHAN_HT40U | IEEE80211_CHAN_HT40D)
  146 #define IEEE80211_CHAN_HT       (IEEE80211_CHAN_HT20 | IEEE80211_CHAN_HT40)
  147 
  148 /*
  149  * Useful combinations of channel characteristics.
  150  */
  151 #define IEEE80211_CHAN_FHSS \
  152         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
  153 #define IEEE80211_CHAN_A \
  154         (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
  155 #define IEEE80211_CHAN_B \
  156         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
  157 #define IEEE80211_CHAN_PUREG \
  158         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
  159 #define IEEE80211_CHAN_G \
  160         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
  161 #define IEEE80211_CHAN_108A \
  162         (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
  163 #define IEEE80211_CHAN_108G \
  164         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
  165 #define IEEE80211_CHAN_ST \
  166         (IEEE80211_CHAN_108A | IEEE80211_CHAN_STURBO)
  167 
  168 #define IEEE80211_CHAN_ALL \
  169         (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_GFSK | \
  170          IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN | \
  171          IEEE80211_CHAN_HT)
  172 #define IEEE80211_CHAN_ALLTURBO \
  173         (IEEE80211_CHAN_ALL | IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO)
  174 
  175 #define IEEE80211_IS_CHAN_FHSS(_c) \
  176         (((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS)
  177 #define IEEE80211_IS_CHAN_A(_c) \
  178         (((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A)
  179 #define IEEE80211_IS_CHAN_B(_c) \
  180         (((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B)
  181 #define IEEE80211_IS_CHAN_PUREG(_c) \
  182         (((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG)
  183 #define IEEE80211_IS_CHAN_G(_c) \
  184         (((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G)
  185 #define IEEE80211_IS_CHAN_ANYG(_c) \
  186         (IEEE80211_IS_CHAN_PUREG(_c) || IEEE80211_IS_CHAN_G(_c))
  187 #define IEEE80211_IS_CHAN_ST(_c) \
  188         (((_c)->ic_flags & IEEE80211_CHAN_ST) == IEEE80211_CHAN_ST)
  189 #define IEEE80211_IS_CHAN_108A(_c) \
  190         (((_c)->ic_flags & IEEE80211_CHAN_108A) == IEEE80211_CHAN_108A)
  191 #define IEEE80211_IS_CHAN_108G(_c) \
  192         (((_c)->ic_flags & IEEE80211_CHAN_108G) == IEEE80211_CHAN_108G)
  193 
  194 #define IEEE80211_IS_CHAN_2GHZ(_c) \
  195         (((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0)
  196 #define IEEE80211_IS_CHAN_5GHZ(_c) \
  197         (((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0)
  198 #define IEEE80211_IS_CHAN_PASSIVE(_c) \
  199         (((_c)->ic_flags & IEEE80211_CHAN_PASSIVE) != 0)
  200 #define IEEE80211_IS_CHAN_OFDM(_c) \
  201         (((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0)
  202 #define IEEE80211_IS_CHAN_CCK(_c) \
  203         (((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0)
  204 #define IEEE80211_IS_CHAN_GFSK(_c) \
  205         (((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0)
  206 #define IEEE80211_IS_CHAN_TURBO(_c) \
  207         (((_c)->ic_flags & IEEE80211_CHAN_TURBO) != 0)
  208 #define IEEE80211_IS_CHAN_STURBO(_c) \
  209         (((_c)->ic_flags & IEEE80211_CHAN_STURBO) != 0)
  210 #define IEEE80211_IS_CHAN_DTURBO(_c) \
  211         (((_c)->ic_flags & \
  212         (IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO)) == IEEE80211_CHAN_TURBO)
  213 #define IEEE80211_IS_CHAN_HALF(_c) \
  214         (((_c)->ic_flags & IEEE80211_CHAN_HALF) != 0)
  215 #define IEEE80211_IS_CHAN_QUARTER(_c) \
  216         (((_c)->ic_flags & IEEE80211_CHAN_QUARTER) != 0)
  217 #define IEEE80211_IS_CHAN_FULL(_c) \
  218         (((_c)->ic_flags & (IEEE80211_CHAN_QUARTER | IEEE80211_CHAN_HALF)) == 0)
  219 #define IEEE80211_IS_CHAN_GSM(_c) \
  220         (((_c)->ic_flags & IEEE80211_CHAN_GSM) != 0)
  221 #define IEEE80211_IS_CHAN_HT(_c) \
  222         (((_c)->ic_flags & IEEE80211_CHAN_HT) != 0)
  223 #define IEEE80211_IS_CHAN_HT20(_c) \
  224         (((_c)->ic_flags & IEEE80211_CHAN_HT20) != 0)
  225 #define IEEE80211_IS_CHAN_HT40(_c) \
  226         (((_c)->ic_flags & IEEE80211_CHAN_HT40) != 0)
  227 #define IEEE80211_IS_CHAN_HT40U(_c) \
  228         (((_c)->ic_flags & IEEE80211_CHAN_HT40U) != 0)
  229 #define IEEE80211_IS_CHAN_HT40D(_c) \
  230         (((_c)->ic_flags & IEEE80211_CHAN_HT40D) != 0)
  231 #define IEEE80211_IS_CHAN_HTA(_c) \
  232         (IEEE80211_IS_CHAN_5GHZ(_c) && \
  233          ((_c)->ic_flags & IEEE80211_CHAN_HT) != 0)
  234 #define IEEE80211_IS_CHAN_HTG(_c) \
  235         (IEEE80211_IS_CHAN_2GHZ(_c) && \
  236          ((_c)->ic_flags & IEEE80211_CHAN_HT) != 0)
  237 #define IEEE80211_IS_CHAN_DFS(_c) \
  238         (((_c)->ic_flags & IEEE80211_CHAN_DFS) != 0)
  239 #define IEEE80211_IS_CHAN_NOADHOC(_c) \
  240         (((_c)->ic_flags & IEEE80211_CHAN_NOADHOC) != 0)
  241 #define IEEE80211_IS_CHAN_NOHOSTAP(_c) \
  242         (((_c)->ic_flags & IEEE80211_CHAN_NOHOSTAP) != 0)
  243 #define IEEE80211_IS_CHAN_11D(_c) \
  244         (((_c)->ic_flags & IEEE80211_CHAN_11D) != 0)
  245 
  246 #define IEEE80211_CHAN2IEEE(_c)         (_c)->ic_ieee
  247 
  248 /* dynamic state */
  249 #define IEEE80211_CHANSTATE_RADAR       0x01    /* radar detected */
  250 #define IEEE80211_CHANSTATE_CACDONE     0x02    /* CAC completed */
  251 #define IEEE80211_CHANSTATE_NORADAR     0x10    /* post notify on radar clear */
  252 
  253 #define IEEE80211_IS_CHAN_RADAR(_c) \
  254         (((_c)->ic_state & IEEE80211_CHANSTATE_RADAR) != 0)
  255 #define IEEE80211_IS_CHAN_CACDONE(_c) \
  256         (((_c)->ic_state & IEEE80211_CHANSTATE_CACDONE) != 0)
  257 
  258 /* ni_chan encoding for FH phy */
  259 #define IEEE80211_FH_CHANMOD    80
  260 #define IEEE80211_FH_CHAN(set,pat)      (((set)-1)*IEEE80211_FH_CHANMOD+(pat))
  261 #define IEEE80211_FH_CHANSET(chan)      ((chan)/IEEE80211_FH_CHANMOD+1)
  262 #define IEEE80211_FH_CHANPAT(chan)      ((chan)%IEEE80211_FH_CHANMOD)
  263 
  264 #define IEEE80211_TID_SIZE      (WME_NUM_TID+1) /* WME TID's +1 for non-QoS */
  265 #define IEEE80211_NONQOS_TID    WME_NUM_TID     /* index for non-QoS sta */
  266 
  267 /*
  268  * 802.11 rate set.
  269  */
  270 #define IEEE80211_RATE_SIZE     8               /* 802.11 standard */
  271 #define IEEE80211_RATE_MAXSIZE  15              /* max rates we'll handle */
  272 
  273 struct ieee80211_rateset {
  274         uint8_t                 rs_nrates;
  275         uint8_t                 rs_rates[IEEE80211_RATE_MAXSIZE];
  276 };
  277 
  278 /*
  279  * 802.11n variant of ieee80211_rateset.  Instead
  280  * legacy rates the entries are MCS rates.  We define
  281  * the structure such that it can be used interchangeably
  282  * with an ieee80211_rateset (modulo structure size).
  283  */
  284 #define IEEE80211_HTRATE_MAXSIZE 127
  285 
  286 struct ieee80211_htrateset {
  287         uint8_t                 rs_nrates;
  288         uint8_t                 rs_rates[IEEE80211_HTRATE_MAXSIZE];
  289 };
  290 
  291 #define IEEE80211_RATE_MCS      0x80
  292 
  293 /*
  294  * Roaming state visible to user space.  There are two
  295  * thresholds that control whether roaming is considered;
  296  * when either is exceeded the 802.11 layer will check
  297  * the scan cache for another AP.  If the cache is stale
  298  * then a scan may be triggered.
  299  */
  300 struct ieee80211_roam {
  301         int8_t                  rssi11a;        /* rssi thresh for 11a bss */
  302         int8_t                  rssi11b;        /* for 11g sta in 11b bss */
  303         int8_t                  rssi11bOnly;    /* for 11b sta */
  304         uint8_t                 pad1;
  305         uint8_t                 rate11a;        /* rate thresh for 11a bss */
  306         uint8_t                 rate11b;        /* for 11g sta in 11b bss */
  307         uint8_t                 rate11bOnly;    /* for 11b sta */
  308         uint8_t                 pad2;
  309 };
  310 #endif /* _NET80211__IEEE80211_H_ */

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