ieee80211.h revision 1.4
1 /* $NetBSD: ieee80211.h,v 1.4 2003/10/15 11:43:51 dyoung Exp $ */ 2 /*- 3 * Copyright (c) 2001 Atsushi Onoe 4 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * Alternatively, this software may be distributed under the terms of the 19 * GNU General Public License ("GPL") version 2 as published by the Free 20 * Software Foundation. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/net80211/ieee80211.h,v 1.2 2003/06/27 05:13:52 sam Exp $ 34 */ 35 #ifndef _NET80211_IEEE80211_H_ 36 #define _NET80211_IEEE80211_H_ 37 38 /* 39 * 802.11 protocol definitions. 40 */ 41 42 #define IEEE80211_ADDR_LEN 6 /* size of 802.11 address */ 43 /* is 802.11 address multicast/broadcast? */ 44 #define IEEE80211_IS_MULTICAST(_a) (*(_a) & 0x01) 45 46 /* IEEE 802.11 PLCP header */ 47 struct ieee80211_plcp_hdr { 48 u_int16_t i_sfd; 49 u_int8_t i_signal; 50 u_int8_t i_service; 51 u_int16_t i_length; 52 u_int16_t i_crc; 53 } __attribute__((__packed__)); 54 55 #define IEEE80211_PLCP_SFD 0xF3A0 56 #define IEEE80211_PLCP_SERVICE 0x00 57 58 /* 59 * generic definitions for IEEE 802.11 frames 60 */ 61 struct ieee80211_frame { 62 u_int8_t i_fc[2]; 63 u_int8_t i_dur[2]; 64 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 65 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 66 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 67 u_int8_t i_seq[2]; 68 /* possibly followed by addr4[IEEE80211_ADDR_LEN]; */ 69 /* see below */ 70 } __attribute__((__packed__)); 71 72 struct ieee80211_frame_addr4 { 73 u_int8_t i_fc[2]; 74 u_int8_t i_dur[2]; 75 u_int8_t i_addr1[IEEE80211_ADDR_LEN]; 76 u_int8_t i_addr2[IEEE80211_ADDR_LEN]; 77 u_int8_t i_addr3[IEEE80211_ADDR_LEN]; 78 u_int8_t i_seq[2]; 79 u_int8_t i_addr4[IEEE80211_ADDR_LEN]; 80 } __attribute__((__packed__)); 81 82 #define IEEE80211_FC0_VERSION_MASK 0x03 83 #define IEEE80211_FC0_VERSION_SHIFT 0 84 #define IEEE80211_FC0_VERSION_0 0x00 85 #define IEEE80211_FC0_TYPE_MASK 0x0c 86 #define IEEE80211_FC0_TYPE_SHIFT 2 87 #define IEEE80211_FC0_TYPE_MGT 0x00 88 #define IEEE80211_FC0_TYPE_CTL 0x04 89 #define IEEE80211_FC0_TYPE_DATA 0x08 90 91 #define IEEE80211_FC0_SUBTYPE_MASK 0xf0 92 #define IEEE80211_FC0_SUBTYPE_SHIFT 4 93 /* for TYPE_MGT */ 94 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ 0x00 95 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP 0x10 96 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ 0x20 97 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP 0x30 98 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ 0x40 99 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP 0x50 100 #define IEEE80211_FC0_SUBTYPE_BEACON 0x80 101 #define IEEE80211_FC0_SUBTYPE_ATIM 0x90 102 #define IEEE80211_FC0_SUBTYPE_DISASSOC 0xa0 103 #define IEEE80211_FC0_SUBTYPE_AUTH 0xb0 104 #define IEEE80211_FC0_SUBTYPE_DEAUTH 0xc0 105 /* for TYPE_CTL */ 106 #define IEEE80211_FC0_SUBTYPE_PS_POLL 0xa0 107 #define IEEE80211_FC0_SUBTYPE_RTS 0xb0 108 #define IEEE80211_FC0_SUBTYPE_CTS 0xc0 109 #define IEEE80211_FC0_SUBTYPE_ACK 0xd0 110 #define IEEE80211_FC0_SUBTYPE_CF_END 0xe0 111 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK 0xf0 112 /* for TYPE_DATA (bit combination) */ 113 #define IEEE80211_FC0_SUBTYPE_DATA 0x00 114 #define IEEE80211_FC0_SUBTYPE_CF_ACK 0x10 115 #define IEEE80211_FC0_SUBTYPE_CF_POLL 0x20 116 #define IEEE80211_FC0_SUBTYPE_CF_ACPL 0x30 117 #define IEEE80211_FC0_SUBTYPE_NODATA 0x40 118 #define IEEE80211_FC0_SUBTYPE_CFACK 0x50 119 #define IEEE80211_FC0_SUBTYPE_CFPOLL 0x60 120 #define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK 0x70 121 122 #define IEEE80211_FC1_DIR_MASK 0x03 123 #define IEEE80211_FC1_DIR_NODS 0x00 /* STA->STA */ 124 #define IEEE80211_FC1_DIR_TODS 0x01 /* STA->AP */ 125 #define IEEE80211_FC1_DIR_FROMDS 0x02 /* AP ->STA */ 126 #define IEEE80211_FC1_DIR_DSTODS 0x03 /* AP ->AP */ 127 128 #define IEEE80211_FC1_MORE_FRAG 0x04 129 #define IEEE80211_FC1_RETRY 0x08 130 #define IEEE80211_FC1_PWR_MGT 0x10 131 #define IEEE80211_FC1_MORE_DATA 0x20 132 #define IEEE80211_FC1_WEP 0x40 133 #define IEEE80211_FC1_ORDER 0x80 134 135 #define IEEE80211_SEQ_FRAG_MASK 0x000f 136 #define IEEE80211_SEQ_FRAG_SHIFT 0 137 #define IEEE80211_SEQ_SEQ_MASK 0xfff0 138 #define IEEE80211_SEQ_SEQ_SHIFT 4 139 140 #define IEEE80211_NWID_LEN 32 141 142 /* 143 * BEACON management packets 144 * 145 * octet timestamp[8] 146 * octet beacon interval[2] 147 * octet capability information[2] 148 * information element 149 * octet elemid 150 * octet length 151 * octet information[length] 152 */ 153 154 typedef uint8_t *ieee80211_mgt_beacon_t; 155 156 #define IEEE80211_BEACON_INTERVAL(beacon) \ 157 ((beacon)[8] | ((beacon)[9] << 8)) 158 #define IEEE80211_BEACON_CAPABILITY(beacon) \ 159 ((beacon)[10] | ((beacon)[11] << 8)) 160 161 #define IEEE80211_CAPINFO_ESS 0x0001 162 #define IEEE80211_CAPINFO_IBSS 0x0002 163 #define IEEE80211_CAPINFO_CF_POLLABLE 0x0004 164 #define IEEE80211_CAPINFO_CF_POLLREQ 0x0008 165 #define IEEE80211_CAPINFO_PRIVACY 0x0010 166 #define IEEE80211_CAPINFO_SHORT_PREAMBLE 0x0020 167 #define IEEE80211_CAPINFO_PBCC 0x0040 168 #define IEEE80211_CAPINFO_CHNL_AGILITY 0x0080 169 /* bits 8-9 are reserved */ 170 #define IEEE80211_CAPINFO_SHORT_SLOTTIME 0x0400 171 /* bits 11-12 are reserved */ 172 #define IEEE80211_CAPINFO_DSSSOFDM 0x2000 173 /* bits 14-15 are reserved */ 174 175 /* 176 * Management information elements 177 */ 178 struct ieee80211_information { 179 char ssid[IEEE80211_NWID_LEN+1]; 180 struct rates { 181 u_int8_t *p; 182 } rates; 183 struct fh { 184 u_int16_t dwell; 185 u_int8_t set; 186 u_int8_t pattern; 187 u_int8_t index; 188 } fh; 189 struct ds { 190 u_int8_t channel; 191 } ds; 192 struct cf { 193 u_int8_t count; 194 u_int8_t period; 195 u_int8_t maxdur[2]; 196 u_int8_t dur[2]; 197 } cf; 198 struct tim { 199 u_int8_t count; 200 u_int8_t period; 201 u_int8_t bitctl; 202 /* u_int8_t pvt[251]; The driver needs to use this. */ 203 } tim; 204 struct ibss { 205 u_int16_t atim; 206 } ibss; 207 struct challenge { 208 u_int8_t *p; 209 u_int8_t len; 210 } challenge; 211 struct erp { 212 u_int8_t flags; 213 } erp; 214 }; 215 216 enum { 217 IEEE80211_ELEMID_SSID = 0, 218 IEEE80211_ELEMID_RATES = 1, 219 IEEE80211_ELEMID_FHPARMS = 2, 220 IEEE80211_ELEMID_DSPARMS = 3, 221 IEEE80211_ELEMID_CFPARMS = 4, 222 IEEE80211_ELEMID_TIM = 5, 223 IEEE80211_ELEMID_IBSSPARMS = 6, 224 IEEE80211_ELEMID_COUNTRY = 7, 225 IEEE80211_ELEMID_CHALLENGE = 16, 226 IEEE80211_ELEMID_ERP = 42, 227 IEEE80211_ELEMID_XRATES = 50, 228 }; 229 230 #define IEEE80211_CHALLENGE_LEN 128 231 232 #define IEEE80211_RATE_BASIC 0x80 233 #define IEEE80211_RATE_VAL 0x7f 234 235 /* EPR information element flags */ 236 #define IEEE80211_ERP_NON_ERP_PRESENT 0x01 237 #define IEEE80211_ERP_USE_PROTECTION 0x02 238 #define IEEE80211_ERP_BARKER_MODE 0x04 239 240 /* 241 * AUTH management packets 242 * 243 * octet algo[2] 244 * octet seq[2] 245 * octet status[2] 246 * octet chal.id 247 * octet chal.length 248 * octet chal.text[253] 249 */ 250 251 typedef u_int8_t *ieee80211_mgt_auth_t; 252 253 #define IEEE80211_AUTH_ALGORITHM(auth) \ 254 ((auth)[0] | ((auth)[1] << 8)) 255 #define IEEE80211_AUTH_TRANSACTION(auth) \ 256 ((auth)[2] | ((auth)[3] << 8)) 257 #define IEEE80211_AUTH_STATUS(auth) \ 258 ((auth)[4] | ((auth)[5] << 8)) 259 260 #define IEEE80211_AUTH_ALG_OPEN 0x0000 261 #define IEEE80211_AUTH_ALG_SHARED 0x0001 262 263 enum { 264 IEEE80211_AUTH_OPEN_REQUEST = 1, 265 IEEE80211_AUTH_OPEN_RESPONSE = 2, 266 }; 267 268 enum { 269 IEEE80211_AUTH_SHARED_REQUEST = 1, 270 IEEE80211_AUTH_SHARED_CHALLENGE = 2, 271 IEEE80211_AUTH_SHARED_RESPONSE = 3, 272 IEEE80211_AUTH_SHARED_PASS = 4, 273 }; 274 275 /* 276 * Reason codes 277 * 278 * Unlisted codes are reserved 279 */ 280 281 enum { 282 IEEE80211_REASON_UNSPECIFIED = 1, 283 IEEE80211_REASON_AUTH_EXPIRE = 2, 284 IEEE80211_REASON_AUTH_LEAVE = 3, 285 IEEE80211_REASON_ASSOC_EXPIRE = 4, 286 IEEE80211_REASON_ASSOC_TOOMANY = 5, 287 IEEE80211_REASON_NOT_AUTHED = 6, 288 IEEE80211_REASON_NOT_ASSOCED = 7, 289 IEEE80211_REASON_ASSOC_LEAVE = 8, 290 IEEE80211_REASON_ASSOC_NOT_AUTHED = 9, 291 292 IEEE80211_STATUS_SUCCESS = 0, 293 IEEE80211_STATUS_UNSPECIFIED = 1, 294 IEEE80211_STATUS_CAPINFO = 10, 295 IEEE80211_STATUS_NOT_ASSOCED = 11, 296 IEEE80211_STATUS_OTHER = 12, 297 IEEE80211_STATUS_ALG = 13, 298 IEEE80211_STATUS_SEQUENCE = 14, 299 IEEE80211_STATUS_CHALLENGE = 15, 300 IEEE80211_STATUS_TIMEOUT = 16, 301 IEEE80211_STATUS_TOOMANY = 17, 302 IEEE80211_STATUS_BASIC_RATE = 18, 303 IEEE80211_STATUS_SP_REQUIRED = 19, 304 IEEE80211_STATUS_PBCC_REQUIRED = 20, 305 IEEE80211_STATUS_CA_REQUIRED = 21, 306 IEEE80211_STATUS_TOO_MANY_STATIONS = 22, 307 IEEE80211_STATUS_RATES = 23, 308 IEEE80211_STATUS_SHORTSLOT_REQUIRED = 25, 309 IEEE80211_STATUS_DSSSOFDM_REQUIRED = 26, 310 }; 311 312 #define IEEE80211_WEP_KEYLEN 5 /* 40bit */ 313 #define IEEE80211_WEP_IVLEN 3 /* 24bit */ 314 #define IEEE80211_WEP_KIDLEN 1 /* 1 octet */ 315 #define IEEE80211_WEP_CRCLEN 4 /* CRC-32 */ 316 #define IEEE80211_WEP_NKID 4 /* number of key ids */ 317 318 #define IEEE80211_CRC_LEN 4 319 320 #define IEEE80211_MTU 1500 321 #define IEEE80211_MAX_LEN (2300 + IEEE80211_CRC_LEN + \ 322 (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN)) 323 324 #define IEEE80211_MAX_AID 2007 325 326 #define IEEE80211_AID_SET(b, w) \ 327 ((w)[((b) & ~0xc000) / 32] |= (1 << (((b) & ~0xc000) % 32))) 328 #define IEEE80211_AID_CLR(b, w) \ 329 ((w)[((b) & ~0xc000) / 32] &= ~(1 << (((b) & ~0xc000) % 32))) 330 #define IEEE80211_AID_ISSET(b, w) \ 331 ((w)[((b) & ~0xc000) / 32] & (1 << (((b) & ~0xc000) % 32))) 332 333 /* 334 * RTS frame length parameters. The default is specified in 335 * the 802.11 spec. The max may be wrong for jumbo frames. 336 */ 337 #define IEEE80211_RTS_DEFAULT 512 338 #define IEEE80211_RTS_MIN 1 339 #define IEEE80211_RTS_MAX IEEE80211_MAX_LEN 340 341 enum { 342 IEEE80211_AUTH_NONE = 0, 343 IEEE80211_AUTH_OPEN = 1, 344 IEEE80211_AUTH_SHARED = 2, 345 }; 346 347 #endif /* _NET80211_IEEE80211_H_ */ 348
Indexes created Wed Sep 24 02:09:48 GMT 2025