1 /* 2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. 3 * All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program; if not, write to the Free Software Foundation, Inc., 17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * File: 80211hdr.h 20 * 21 * Purpose: 802.11 MAC headers related pre-defines and macros. 22 * 23 * Author: Lyndon Chen 24 * 25 * Date: Apr 8, 2002 26 */ 27 28 #ifndef __80211HDR_H__ 29 #define __80211HDR_H__ 30 31 #include "ttype.h" 32 33 /*--------------------- Export Definitions -------------------------*/ 34 35 /* bit type */ 36 #define BIT0 0x00000001 37 #define BIT1 0x00000002 38 #define BIT2 0x00000004 39 #define BIT3 0x00000008 40 #define BIT4 0x00000010 41 #define BIT5 0x00000020 42 #define BIT6 0x00000040 43 #define BIT7 0x00000080 44 #define BIT8 0x00000100 45 #define BIT9 0x00000200 46 #define BIT10 0x00000400 47 #define BIT11 0x00000800 48 #define BIT12 0x00001000 49 #define BIT13 0x00002000 50 #define BIT14 0x00004000 51 #define BIT15 0x00008000 52 #define BIT16 0x00010000 53 #define BIT17 0x00020000 54 #define BIT18 0x00040000 55 #define BIT19 0x00080000 56 #define BIT20 0x00100000 57 #define BIT21 0x00200000 58 #define BIT22 0x00400000 59 #define BIT23 0x00800000 60 #define BIT24 0x01000000 61 #define BIT25 0x02000000 62 #define BIT26 0x04000000 63 #define BIT27 0x08000000 64 #define BIT28 0x10000000 65 #define BIT29 0x20000000 66 #define BIT30 0x40000000 67 #define BIT31 0x80000000 68 69 /* 802.11 frame related, defined as 802.11 spec */ 70 #define WLAN_ADDR_LEN 6 71 #define WLAN_CRC_LEN 4 72 #define WLAN_CRC32_LEN 4 73 #define WLAN_FCS_LEN 4 74 #define WLAN_BSSID_LEN 6 75 #define WLAN_BSS_TS_LEN 8 76 #define WLAN_HDR_ADDR2_LEN 16 77 #define WLAN_HDR_ADDR3_LEN 24 78 #define WLAN_HDR_ADDR4_LEN 30 79 #define WLAN_IEHDR_LEN 2 80 #define WLAN_SSID_MAXLEN 32 81 /* #define WLAN_RATES_MAXLEN 255 */ 82 #define WLAN_RATES_MAXLEN 16 83 #define WLAN_RATES_MAXLEN_11B 4 84 #define WLAN_RSN_MAXLEN 32 85 #define WLAN_DATA_MAXLEN 2312 86 #define WLAN_A3FR_MAXLEN (WLAN_HDR_ADDR3_LEN \ 87 + WLAN_DATA_MAXLEN \ 88 + WLAN_CRC_LEN) 89 90 #define WLAN_BEACON_FR_MAXLEN WLAN_A3FR_MAXLEN 91 #define WLAN_ATIM_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 0) 92 #define WLAN_NULLDATA_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 0) 93 #define WLAN_DISASSOC_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 2) 94 #define WLAN_ASSOCREQ_FR_MAXLEN WLAN_A3FR_MAXLEN 95 #define WLAN_ASSOCRESP_FR_MAXLEN WLAN_A3FR_MAXLEN 96 #define WLAN_REASSOCREQ_FR_MAXLEN WLAN_A3FR_MAXLEN 97 #define WLAN_REASSOCRESP_FR_MAXLEN WLAN_A3FR_MAXLEN 98 #define WLAN_PROBEREQ_FR_MAXLEN WLAN_A3FR_MAXLEN 99 #define WLAN_PROBERESP_FR_MAXLEN WLAN_A3FR_MAXLEN 100 #define WLAN_AUTHEN_FR_MAXLEN WLAN_A3FR_MAXLEN 101 #define WLAN_DEAUTHEN_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 2) 102 103 #define WLAN_WEP_NKEYS 4 104 #define WLAN_WEP40_KEYLEN 5 105 #define WLAN_WEP104_KEYLEN 13 106 #define WLAN_WEP232_KEYLEN 29 107 /* #define WLAN_WEPMAX_KEYLEN 29 */ 108 #define WLAN_WEPMAX_KEYLEN 32 109 #define WLAN_CHALLENGE_IE_MAXLEN 255 110 #define WLAN_CHALLENGE_IE_LEN 130 111 #define WLAN_CHALLENGE_LEN 128 112 #define WLAN_WEP_IV_LEN 4 113 #define WLAN_WEP_ICV_LEN 4 114 #define WLAN_FRAGS_MAX 16 115 116 /* Frame Type */ 117 #define WLAN_TYPE_MGR 0x00 118 #define WLAN_TYPE_CTL 0x01 119 #define WLAN_TYPE_DATA 0x02 120 121 #define WLAN_FTYPE_MGMT 0x00 122 #define WLAN_FTYPE_CTL 0x01 123 #define WLAN_FTYPE_DATA 0x02 124 125 /* Frame Subtypes */ 126 #define WLAN_FSTYPE_ASSOCREQ 0x00 127 #define WLAN_FSTYPE_ASSOCRESP 0x01 128 #define WLAN_FSTYPE_REASSOCREQ 0x02 129 #define WLAN_FSTYPE_REASSOCRESP 0x03 130 #define WLAN_FSTYPE_PROBEREQ 0x04 131 #define WLAN_FSTYPE_PROBERESP 0x05 132 #define WLAN_FSTYPE_BEACON 0x08 133 #define WLAN_FSTYPE_ATIM 0x09 134 #define WLAN_FSTYPE_DISASSOC 0x0a 135 #define WLAN_FSTYPE_AUTHEN 0x0b 136 #define WLAN_FSTYPE_DEAUTHEN 0x0c 137 #define WLAN_FSTYPE_ACTION 0x0d 138 139 /* Control */ 140 #define WLAN_FSTYPE_PSPOLL 0x0a 141 #define WLAN_FSTYPE_RTS 0x0b 142 #define WLAN_FSTYPE_CTS 0x0c 143 #define WLAN_FSTYPE_ACK 0x0d 144 #define WLAN_FSTYPE_CFEND 0x0e 145 #define WLAN_FSTYPE_CFENDCFACK 0x0f 146 147 /* Data */ 148 #define WLAN_FSTYPE_DATAONLY 0x00 149 #define WLAN_FSTYPE_DATA_CFACK 0x01 150 #define WLAN_FSTYPE_DATA_CFPOLL 0x02 151 #define WLAN_FSTYPE_DATA_CFACK_CFPOLL 0x03 152 #define WLAN_FSTYPE_NULL 0x04 153 #define WLAN_FSTYPE_CFACK 0x05 154 #define WLAN_FSTYPE_CFPOLL 0x06 155 #define WLAN_FSTYPE_CFACK_CFPOLL 0x07 156 157 #ifdef __BIG_ENDIAN 158 159 /* GET & SET Frame Control bit */ 160 #define WLAN_GET_FC_PRVER(n) ((((WORD)(n) >> 8) & (BIT0 | BIT1)) 161 #define WLAN_GET_FC_FTYPE(n) ((((WORD)(n) >> 8) & (BIT2 | BIT3)) >> 2) 162 #define WLAN_GET_FC_FSTYPE(n) ((((WORD)(n) >> 8) \ 163 & (BIT4|BIT5|BIT6|BIT7)) >> 4) 164 #define WLAN_GET_FC_TODS(n) ((((WORD)(n) << 8) & (BIT8)) >> 8) 165 #define WLAN_GET_FC_FROMDS(n) ((((WORD)(n) << 8) & (BIT9)) >> 9) 166 #define WLAN_GET_FC_MOREFRAG(n) ((((WORD)(n) << 8) & (BIT10)) >> 10) 167 #define WLAN_GET_FC_RETRY(n) ((((WORD)(n) << 8) & (BIT11)) >> 11) 168 #define WLAN_GET_FC_PWRMGT(n) ((((WORD)(n) << 8) & (BIT12)) >> 12) 169 #define WLAN_GET_FC_MOREDATA(n) ((((WORD)(n) << 8) & (BIT13)) >> 13) 170 #define WLAN_GET_FC_ISWEP(n) ((((WORD)(n) << 8) & (BIT14)) >> 14) 171 #define WLAN_GET_FC_ORDER(n) ((((WORD)(n) << 8) & (BIT15)) >> 15) 172 173 /* Sequence Field bit */ 174 #define WLAN_GET_SEQ_FRGNUM(n) (((WORD)(n) >> 8) & (BIT0|BIT1|BIT2|BIT3)) 175 #define WLAN_GET_SEQ_SEQNUM(n) ((((WORD)(n) >> 8) \ 176 & (~(BIT0|BIT1|BIT2|BIT3))) >> 4) 177 178 /* Capability Field bit */ 179 #define WLAN_GET_CAP_INFO_ESS(n) (((n) >> 8) & BIT0) 180 #define WLAN_GET_CAP_INFO_IBSS(n) ((((n) >> 8) & BIT1) >> 1) 181 #define WLAN_GET_CAP_INFO_CFPOLLABLE(n) ((((n) >> 8) & BIT2) >> 2) 182 #define WLAN_GET_CAP_INFO_CFPOLLREQ(n) ((((n) >> 8) & BIT3) >> 3) 183 #define WLAN_GET_CAP_INFO_PRIVACY(n) ((((n) >> 8) & BIT4) >> 4) 184 #define WLAN_GET_CAP_INFO_SHORTPREAMBLE(n) ((((n) >> 8) & BIT5) >> 5) 185 #define WLAN_GET_CAP_INFO_PBCC(n) ((((n) >> 8) & BIT6) >> 6) 186 #define WLAN_GET_CAP_INFO_AGILITY(n) ((((n) >> 8) & BIT7) >> 7) 187 #define WLAN_GET_CAP_INFO_SPECTRUMMNG(n) ((((n)) & BIT8) >> 10) 188 #define WLAN_GET_CAP_INFO_SHORTSLOTTIME(n) ((((n)) & BIT10) >> 10) 189 #define WLAN_GET_CAP_INFO_DSSSOFDM(n) ((((n)) & BIT13) >> 13) 190 #define WLAN_GET_CAP_INFO_GRPACK(n) ((((n)) & BIT14) >> 14) 191 192 #else 193 194 /* GET & SET Frame Control bit */ 195 #define WLAN_GET_FC_PRVER(n) (((WORD)(n)) & (BIT0 | BIT1)) 196 #define WLAN_GET_FC_FTYPE(n) ((((WORD)(n)) & (BIT2 | BIT3)) >> 2) 197 #define WLAN_GET_FC_FSTYPE(n) ((((WORD)(n)) & (BIT4|BIT5|BIT6|BIT7)) >> 4) 198 #define WLAN_GET_FC_TODS(n) ((((WORD)(n)) & (BIT8)) >> 8) 199 #define WLAN_GET_FC_FROMDS(n) ((((WORD)(n)) & (BIT9)) >> 9) 200 #define WLAN_GET_FC_MOREFRAG(n) ((((WORD)(n)) & (BIT10)) >> 10) 201 #define WLAN_GET_FC_RETRY(n) ((((WORD)(n)) & (BIT11)) >> 11) 202 #define WLAN_GET_FC_PWRMGT(n) ((((WORD)(n)) & (BIT12)) >> 12) 203 #define WLAN_GET_FC_MOREDATA(n) ((((WORD)(n)) & (BIT13)) >> 13) 204 #define WLAN_GET_FC_ISWEP(n) ((((WORD)(n)) & (BIT14)) >> 14) 205 #define WLAN_GET_FC_ORDER(n) ((((WORD)(n)) & (BIT15)) >> 15) 206 207 /* Sequence Field bit */ 208 #define WLAN_GET_SEQ_FRGNUM(n) (((WORD)(n)) & (BIT0|BIT1|BIT2|BIT3)) 209 #define WLAN_GET_SEQ_SEQNUM(n) ((((WORD)(n)) & (~(BIT0|BIT1|BIT2|BIT3))) >> 4) 210 211 /* Capability Field bit */ 212 #define WLAN_GET_CAP_INFO_ESS(n) ((n) & BIT0) 213 #define WLAN_GET_CAP_INFO_IBSS(n) (((n) & BIT1) >> 1) 214 #define WLAN_GET_CAP_INFO_CFPOLLABLE(n) (((n) & BIT2) >> 2) 215 #define WLAN_GET_CAP_INFO_CFPOLLREQ(n) (((n) & BIT3) >> 3) 216 #define WLAN_GET_CAP_INFO_PRIVACY(n) (((n) & BIT4) >> 4) 217 #define WLAN_GET_CAP_INFO_SHORTPREAMBLE(n) (((n) & BIT5) >> 5) 218 #define WLAN_GET_CAP_INFO_PBCC(n) (((n) & BIT6) >> 6) 219 #define WLAN_GET_CAP_INFO_AGILITY(n) (((n) & BIT7) >> 7) 220 #define WLAN_GET_CAP_INFO_SPECTRUMMNG(n) (((n) & BIT8) >> 10) 221 #define WLAN_GET_CAP_INFO_SHORTSLOTTIME(n) (((n) & BIT10) >> 10) 222 #define WLAN_GET_CAP_INFO_DSSSOFDM(n) (((n) & BIT13) >> 13) 223 #define WLAN_GET_CAP_INFO_GRPACK(n) (((n) & BIT14) >> 14) 224 225 #endif /* #ifdef __BIG_ENDIAN */ 226 227 #define WLAN_SET_CAP_INFO_ESS(n) (n) 228 #define WLAN_SET_CAP_INFO_IBSS(n) ((n) << 1) 229 #define WLAN_SET_CAP_INFO_CFPOLLABLE(n) ((n) << 2) 230 #define WLAN_SET_CAP_INFO_CFPOLLREQ(n) ((n) << 3) 231 #define WLAN_SET_CAP_INFO_PRIVACY(n) ((n) << 4) 232 #define WLAN_SET_CAP_INFO_SHORTPREAMBLE(n) ((n) << 5) 233 #define WLAN_SET_CAP_INFO_SPECTRUMMNG(n) ((n) << 8) 234 #define WLAN_SET_CAP_INFO_PBCC(n) ((n) << 6) 235 #define WLAN_SET_CAP_INFO_AGILITY(n) ((n) << 7) 236 #define WLAN_SET_CAP_INFO_SHORTSLOTTIME(n) ((n) << 10) 237 #define WLAN_SET_CAP_INFO_DSSSOFDM(n) ((n) << 13) 238 #define WLAN_SET_CAP_INFO_GRPACK(n) ((n) << 14) 239 240 #define WLAN_SET_FC_PRVER(n) ((WORD)(n)) 241 #define WLAN_SET_FC_FTYPE(n) (((WORD)(n)) << 2) 242 #define WLAN_SET_FC_FSTYPE(n) (((WORD)(n)) << 4) 243 #define WLAN_SET_FC_TODS(n) (((WORD)(n)) << 8) 244 #define WLAN_SET_FC_FROMDS(n) (((WORD)(n)) << 9) 245 #define WLAN_SET_FC_MOREFRAG(n) (((WORD)(n)) << 10) 246 #define WLAN_SET_FC_RETRY(n) (((WORD)(n)) << 11) 247 #define WLAN_SET_FC_PWRMGT(n) (((WORD)(n)) << 12) 248 #define WLAN_SET_FC_MOREDATA(n) (((WORD)(n)) << 13) 249 #define WLAN_SET_FC_ISWEP(n) (((WORD)(n)) << 14) 250 #define WLAN_SET_FC_ORDER(n) (((WORD)(n)) << 15) 251 252 #define WLAN_SET_SEQ_FRGNUM(n) ((WORD)(n)) 253 #define WLAN_SET_SEQ_SEQNUM(n) (((WORD)(n)) << 4) 254 255 /* ERP Field bit */ 256 257 #define WLAN_GET_ERP_NONERP_PRESENT(n) ((n) & BIT0) 258 #define WLAN_GET_ERP_USE_PROTECTION(n) (((n) & BIT1) >> 1) 259 #define WLAN_GET_ERP_BARKER_MODE(n) (((n) & BIT2) >> 2) 260 261 #define WLAN_SET_ERP_NONERP_PRESENT(n) (n) 262 #define WLAN_SET_ERP_USE_PROTECTION(n) ((n) << 1) 263 #define WLAN_SET_ERP_BARKER_MODE(n) ((n) << 2) 264 265 /* Support & Basic Rates field */ 266 #define WLAN_MGMT_IS_BASICRATE(b) ((b) & BIT7) 267 #define WLAN_MGMT_GET_RATE(b) ((b) & ~BIT7) 268 269 /* TIM field */ 270 #define WLAN_MGMT_IS_MULTICAST_TIM(b) ((b) & BIT0) 271 #define WLAN_MGMT_GET_TIM_OFFSET(b) (((b) & ~BIT0) >> 1) 272 273 /* 3-Addr & 4-Addr */ 274 #define WLAN_HDR_A3_DATA_PTR(p) (((PBYTE)(p)) + WLAN_HDR_ADDR3_LEN) 275 #define WLAN_HDR_A4_DATA_PTR(p) (((PBYTE)(p)) + WLAN_HDR_ADDR4_LEN) 276 277 /* IEEE ADDR */ 278 #define IEEE_ADDR_UNIVERSAL 0x02 279 #define IEEE_ADDR_GROUP 0x01 280 281 typedef struct { 282 BYTE abyAddr[6]; 283 } IEEE_ADDR, *PIEEE_ADDR; 284 285 /* 802.11 Header Format */ 286 287 typedef struct tagWLAN_80211HDR_A2 { 288 289 WORD wFrameCtl; 290 WORD wDurationID; 291 BYTE abyAddr1[WLAN_ADDR_LEN]; 292 BYTE abyAddr2[WLAN_ADDR_LEN]; 293 294 } __attribute__ ((__packed__)) 295 WLAN_80211HDR_A2, *PWLAN_80211HDR_A2; 296 297 typedef struct tagWLAN_80211HDR_A3 { 298 299 WORD wFrameCtl; 300 WORD wDurationID; 301 BYTE abyAddr1[WLAN_ADDR_LEN]; 302 BYTE abyAddr2[WLAN_ADDR_LEN]; 303 BYTE abyAddr3[WLAN_ADDR_LEN]; 304 WORD wSeqCtl; 305 306 } __attribute__ ((__packed__)) 307 WLAN_80211HDR_A3, *PWLAN_80211HDR_A3; 308 309 typedef struct tagWLAN_80211HDR_A4 { 310 311 WORD wFrameCtl; 312 WORD wDurationID; 313 BYTE abyAddr1[WLAN_ADDR_LEN]; 314 BYTE abyAddr2[WLAN_ADDR_LEN]; 315 BYTE abyAddr3[WLAN_ADDR_LEN]; 316 WORD wSeqCtl; 317 BYTE abyAddr4[WLAN_ADDR_LEN]; 318 319 } __attribute__ ((__packed__)) 320 WLAN_80211HDR_A4, *PWLAN_80211HDR_A4; 321 322 typedef union tagUWLAN_80211HDR { 323 324 WLAN_80211HDR_A2 sA2; 325 WLAN_80211HDR_A3 sA3; 326 WLAN_80211HDR_A4 sA4; 327 328 } UWLAN_80211HDR, *PUWLAN_80211HDR; 329 330 /*--------------------- Export Classes ----------------------------*/ 331 332 /*--------------------- Export Variables --------------------------*/ 333 334 /*--------------------- Export Functions --------------------------*/ 335 336 #endif /* __80211HDR_H__ */ 337