Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_var.h
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1 /*- 2 * Copyright (c) 2001 Atsushi Onoe 3 * Copyright (c) 2002, 2003 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: releng/5.4/sys/net80211/ieee80211_var.h 127916 2004-04-05 22:10:26Z sam $ 33 */ 34 #ifndef _NET80211_IEEE80211_VAR_H_ 35 #define _NET80211_IEEE80211_VAR_H_ 36 37 /* 38 * Definitions for IEEE 802.11 drivers. 39 */ 40 41 #include <net80211/ieee80211.h> 42 #include <net80211/ieee80211_crypto.h> 43 #include <net80211/ieee80211_ioctl.h> /* for ieee80211_stats */ 44 #include <net80211/ieee80211_node.h> 45 #include <net80211/ieee80211_proto.h> 46 47 #define IEEE80211_CHAN_MAX 255 48 #define IEEE80211_CHAN_ANY 0xffff /* token for ``any channel'' */ 49 #define IEEE80211_CHAN_ANYC \ 50 ((struct ieee80211_channel *) IEEE80211_CHAN_ANY) 51 52 #define IEEE80211_TXPOWER_MAX 100 /* max power */ 53 #define IEEE80211_TXPOWER_MIN 0 /* kill radio (if possible) */ 54 55 enum ieee80211_phytype { 56 IEEE80211_T_DS, /* direct sequence spread spectrum */ 57 IEEE80211_T_FH, /* frequency hopping */ 58 IEEE80211_T_OFDM, /* frequency division multiplexing */ 59 IEEE80211_T_TURBO, /* high rate OFDM, aka turbo mode */ 60 }; 61 #define IEEE80211_T_CCK IEEE80211_T_DS /* more common nomenclature */ 62 63 /* XXX not really a mode; there are really multiple PHY's */ 64 enum ieee80211_phymode { 65 IEEE80211_MODE_AUTO = 0, /* autoselect */ 66 IEEE80211_MODE_11A = 1, /* 5GHz, OFDM */ 67 IEEE80211_MODE_11B = 2, /* 2GHz, CCK */ 68 IEEE80211_MODE_11G = 3, /* 2GHz, OFDM */ 69 IEEE80211_MODE_FH = 4, /* 2GHz, GFSK */ 70 IEEE80211_MODE_TURBO = 5, /* 5GHz, OFDM, 2x clock */ 71 }; 72 #define IEEE80211_MODE_MAX (IEEE80211_MODE_TURBO+1) 73 74 enum ieee80211_opmode { 75 IEEE80211_M_STA = 1, /* infrastructure station */ 76 IEEE80211_M_IBSS = 0, /* IBSS (adhoc) station */ 77 IEEE80211_M_AHDEMO = 3, /* Old lucent compatible adhoc demo */ 78 IEEE80211_M_HOSTAP = 6, /* Software Access Point */ 79 IEEE80211_M_MONITOR = 8 /* Monitor mode */ 80 }; 81 82 /* 83 * 802.11g protection mode. 84 */ 85 enum ieee80211_protmode { 86 IEEE80211_PROT_NONE = 0, /* no protection */ 87 IEEE80211_PROT_CTSONLY = 1, /* CTS to self */ 88 IEEE80211_PROT_RTSCTS = 2, /* RTS-CTS */ 89 }; 90 91 /* 92 * Channels are specified by frequency and attributes. 93 */ 94 struct ieee80211_channel { 95 u_int16_t ic_freq; /* setting in Mhz */ 96 u_int16_t ic_flags; /* see below */ 97 }; 98 99 /* bits 0-3 are for private use by drivers */ 100 /* channel attributes */ 101 #define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */ 102 #define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */ 103 #define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */ 104 #define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */ 105 #define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */ 106 #define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */ 107 #define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */ 108 #define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */ 109 110 /* 111 * Useful combinations of channel characteristics. 112 */ 113 #define IEEE80211_CHAN_FHSS \ 114 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK) 115 #define IEEE80211_CHAN_A \ 116 (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM) 117 #define IEEE80211_CHAN_B \ 118 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK) 119 #define IEEE80211_CHAN_PUREG \ 120 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM) 121 #define IEEE80211_CHAN_G \ 122 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN) 123 #define IEEE80211_CHAN_T \ 124 (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO) 125 126 #define IEEE80211_IS_CHAN_FHSS(_c) \ 127 (((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS) 128 #define IEEE80211_IS_CHAN_A(_c) \ 129 (((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A) 130 #define IEEE80211_IS_CHAN_B(_c) \ 131 (((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B) 132 #define IEEE80211_IS_CHAN_PUREG(_c) \ 133 (((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG) 134 #define IEEE80211_IS_CHAN_G(_c) \ 135 (((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G) 136 #define IEEE80211_IS_CHAN_T(_c) \ 137 (((_c)->ic_flags & IEEE80211_CHAN_T) == IEEE80211_CHAN_T) 138 139 #define IEEE80211_IS_CHAN_2GHZ(_c) \ 140 (((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0) 141 #define IEEE80211_IS_CHAN_5GHZ(_c) \ 142 (((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0) 143 #define IEEE80211_IS_CHAN_OFDM(_c) \ 144 (((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0) 145 #define IEEE80211_IS_CHAN_CCK(_c) \ 146 (((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0) 147 #define IEEE80211_IS_CHAN_GFSK(_c) \ 148 (((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0) 149 150 /* ni_chan encoding for FH phy */ 151 #define IEEE80211_FH_CHANMOD 80 152 #define IEEE80211_FH_CHAN(set,pat) (((set)-1)*IEEE80211_FH_CHANMOD+(pat)) 153 #define IEEE80211_FH_CHANSET(chan) ((chan)/IEEE80211_FH_CHANMOD+1) 154 #define IEEE80211_FH_CHANPAT(chan) ((chan)%IEEE80211_FH_CHANMOD) 155 156 struct ieee80211com { 157 struct arpcom ic_ac; 158 void (*ic_recv_mgmt)(struct ieee80211com *, 159 struct mbuf *, struct ieee80211_node *, 160 int, int, u_int32_t); 161 int (*ic_send_mgmt)(struct ieee80211com *, 162 struct ieee80211_node *, int, int); 163 int (*ic_newstate)(struct ieee80211com *, 164 enum ieee80211_state, int); 165 void (*ic_newassoc)(struct ieee80211com *, 166 struct ieee80211_node *, int); 167 u_int8_t ic_myaddr[IEEE80211_ADDR_LEN]; 168 struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX]; 169 struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX+1]; 170 u_char ic_chan_avail[roundup(IEEE80211_CHAN_MAX,NBBY)]; 171 u_char ic_chan_active[roundup(IEEE80211_CHAN_MAX, NBBY)]; 172 u_char ic_chan_scan[roundup(IEEE80211_CHAN_MAX,NBBY)]; 173 struct ifqueue ic_mgtq; 174 u_int32_t ic_flags; /* state flags */ 175 u_int32_t ic_caps; /* capabilities */ 176 u_int16_t ic_modecaps; /* set of mode capabilities */ 177 u_int16_t ic_curmode; /* current mode */ 178 enum ieee80211_phytype ic_phytype; /* XXX wrong for multi-mode */ 179 enum ieee80211_opmode ic_opmode; /* operation mode */ 180 enum ieee80211_state ic_state; /* 802.11 state */ 181 enum ieee80211_protmode ic_protmode; /* 802.11g protection mode */ 182 struct ifmedia ic_media; /* interface media config */ 183 struct bpf_if *ic_rawbpf; /* packet filter structure */ 184 struct ieee80211_node *ic_bss; /* information for this node */ 185 struct ieee80211_channel *ic_ibss_chan; 186 int ic_fixed_rate; /* index to ic_sup_rates[] */ 187 u_int16_t ic_rtsthreshold; 188 u_int16_t ic_fragthreshold; 189 struct mtx ic_nodelock; /* on node table */ 190 u_int ic_scangen; /* gen# for timeout scan */ 191 struct ieee80211_node *(*ic_node_alloc)(struct ieee80211com *); 192 void (*ic_node_free)(struct ieee80211com *, 193 struct ieee80211_node *); 194 void (*ic_node_copy)(struct ieee80211com *, 195 struct ieee80211_node *, 196 const struct ieee80211_node *); 197 u_int8_t (*ic_node_getrssi)(struct ieee80211com *, 198 struct ieee80211_node *); 199 TAILQ_HEAD(, ieee80211_node) ic_node; /* information of all nodes */ 200 LIST_HEAD(, ieee80211_node) ic_hash[IEEE80211_NODE_HASHSIZE]; 201 u_int16_t ic_lintval; /* listen interval */ 202 u_int16_t ic_holdover; /* PM hold over duration */ 203 u_int16_t ic_txmin; /* min tx retry count */ 204 u_int16_t ic_txmax; /* max tx retry count */ 205 u_int16_t ic_txlifetime; /* tx lifetime */ 206 u_int16_t ic_txpower; /* tx power setting (dbM) */ 207 u_int16_t ic_bmisstimeout;/* beacon miss threshold (ms) */ 208 int ic_mgt_timer; /* mgmt timeout */ 209 int ic_inact_timer; /* inactivity timer wait */ 210 int ic_des_esslen; 211 u_int8_t ic_des_essid[IEEE80211_NWID_LEN]; 212 struct ieee80211_channel *ic_des_chan; /* desired channel */ 213 u_int8_t ic_des_bssid[IEEE80211_ADDR_LEN]; 214 struct ieee80211_wepkey ic_nw_keys[IEEE80211_WEP_NKID]; 215 int ic_wep_txkey; /* default tx key index */ 216 void *ic_wep_ctx; /* wep crypt context */ 217 u_int32_t ic_iv; /* initial vector for wep */ 218 struct ieee80211_stats ic_stats; /* statistics */ 219 }; 220 #define ic_if ic_ac.ac_if 221 #define ic_softc ic_if.if_softc 222 223 #define IEEE80211_ADDR_EQ(a1,a2) (memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0) 224 #define IEEE80211_ADDR_COPY(dst,src) memcpy(dst,src,IEEE80211_ADDR_LEN) 225 226 /* ic_flags */ 227 #define IEEE80211_F_ASCAN 0x00000001 /* STATUS: active scan */ 228 #define IEEE80211_F_SIBSS 0x00000002 /* STATUS: start IBSS */ 229 #define IEEE80211_F_WEPON 0x00000100 /* CONF: WEP enabled */ 230 #define IEEE80211_F_IBSSON 0x00000200 /* CONF: IBSS creation enable */ 231 #define IEEE80211_F_PMGTON 0x00000400 /* CONF: Power mgmt enable */ 232 #define IEEE80211_F_DESBSSID 0x00000800 /* CONF: des_bssid is set */ 233 #define IEEE80211_F_SCANAP 0x00001000 /* CONF: Scanning AP */ 234 #define IEEE80211_F_ROAMING 0x00002000 /* CONF: roaming enabled */ 235 #define IEEE80211_F_SWRETRY 0x00004000 /* CONF: sw tx retry enabled */ 236 #define IEEE80211_F_TXPMGT 0x00018000 /* STATUS: tx power */ 237 #define IEEE80211_F_TXPOW_OFF 0x00000000 /* TX Power: radio disabled */ 238 #define IEEE80211_F_TXPOW_FIXED 0x00008000 /* TX Power: fixed rate */ 239 #define IEEE80211_F_TXPOW_AUTO 0x00010000 /* TX Power: undefined */ 240 #define IEEE80211_F_SHSLOT 0x00020000 /* CONF: short slot time */ 241 #define IEEE80211_F_SHPREAMBLE 0x00040000 /* CONF: short preamble */ 242 #define IEEE80211_F_USEPROT 0x00100000 /* STATUS: protection enabled */ 243 #define IEEE80211_F_USEBARKER 0x00200000 /* STATUS: use barker preamble*/ 244 245 /* ic_caps */ 246 #define IEEE80211_C_WEP 0x00000001 /* CAPABILITY: WEP available */ 247 #define IEEE80211_C_IBSS 0x00000002 /* CAPABILITY: IBSS available */ 248 #define IEEE80211_C_PMGT 0x00000004 /* CAPABILITY: Power mgmt */ 249 #define IEEE80211_C_HOSTAP 0x00000008 /* CAPABILITY: HOSTAP avail */ 250 #define IEEE80211_C_AHDEMO 0x00000010 /* CAPABILITY: Old Adhoc Demo */ 251 #define IEEE80211_C_SWRETRY 0x00000020 /* CAPABILITY: sw tx retry */ 252 #define IEEE80211_C_TXPMGT 0x00000040 /* CAPABILITY: tx power mgmt */ 253 #define IEEE80211_C_SHSLOT 0x00000080 /* CAPABILITY: short slottime */ 254 #define IEEE80211_C_SHPREAMBLE 0x00000100 /* CAPABILITY: short preamble */ 255 #define IEEE80211_C_MONITOR 0x00000200 /* CAPABILITY: monitor mode */ 256 257 /* flags for ieee80211_fix_rate() */ 258 #define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */ 259 #define IEEE80211_F_DOFRATE 0x00000002 /* use fixed rate */ 260 #define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */ 261 #define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */ 262 263 void ieee80211_ifattach(struct ifnet *); 264 void ieee80211_ifdetach(struct ifnet *); 265 void ieee80211_media_init(struct ifnet *, ifm_change_cb_t, ifm_stat_cb_t); 266 int ieee80211_media_change(struct ifnet *); 267 void ieee80211_media_status(struct ifnet *, struct ifmediareq *); 268 int ieee80211_ioctl(struct ifnet *, u_long, caddr_t); 269 int ieee80211_cfgget(struct ifnet *, u_long, caddr_t); 270 int ieee80211_cfgset(struct ifnet *, u_long, caddr_t); 271 void ieee80211_watchdog(struct ifnet *); 272 int ieee80211_fix_rate(struct ieee80211com *, struct ieee80211_node *, int); 273 int ieee80211_rate2media(struct ieee80211com *, int, 274 enum ieee80211_phymode); 275 int ieee80211_media2rate(int); 276 u_int ieee80211_mhz2ieee(u_int, u_int); 277 u_int ieee80211_chan2ieee(struct ieee80211com *, struct ieee80211_channel *); 278 u_int ieee80211_ieee2mhz(u_int, u_int); 279 int ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode); 280 enum ieee80211_phymode ieee80211_chan2mode(struct ieee80211com *, 281 struct ieee80211_channel *); 282 283 #define IEEE80211_DEBUG 284 #ifdef IEEE80211_DEBUG 285 extern int ieee80211_debug; 286 #define IEEE80211_DPRINTF(X) if (ieee80211_debug) printf X 287 #define IEEE80211_DPRINTF2(X) if (ieee80211_debug>1) printf X 288 #else 289 #define IEEE80211_DPRINTF(X) 290 #define IEEE80211_DPRINTF2(X) 291 #endif 292 293 #endif /* _NET80211_IEEE80211_VAR_H_ */
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