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 * 20 * File: 80211hdr.h 21 * 22 * Purpose: 802.11 MAC headers related pre-defines and macros. 23 * 24 * 25 * Author: Lyndon Chen 26 * 27 * Date: Apr 8, 2002 28 * 29 */ 30 31#ifndef __80211HDR_H__ 32#define __80211HDR_H__ 33 34#include "ttype.h" 35 36/*--------------------- Export Definitions -------------------------*/ 37/* bit type */ 38#define BIT0 0x00000001 39#define BIT1 0x00000002 40#define BIT2 0x00000004 41#define BIT3 0x00000008 42#define BIT4 0x00000010 43#define BIT5 0x00000020 44#define BIT6 0x00000040 45#define BIT7 0x00000080 46#define BIT8 0x00000100 47#define BIT9 0x00000200 48#define BIT10 0x00000400 49#define BIT11 0x00000800 50#define BIT12 0x00001000 51#define BIT13 0x00002000 52#define BIT14 0x00004000 53#define BIT15 0x00008000 54#define BIT16 0x00010000 55#define BIT17 0x00020000 56#define BIT18 0x00040000 57#define BIT19 0x00080000 58#define BIT20 0x00100000 59#define BIT21 0x00200000 60#define BIT22 0x00400000 61#define BIT23 0x00800000 62#define BIT24 0x01000000 63#define BIT25 0x02000000 64#define BIT26 0x04000000 65#define BIT27 0x08000000 66#define BIT28 0x10000000 67#define BIT29 0x20000000 68#define BIT30 0x40000000 69#define BIT31 0x80000000 70 71// 802.11 frame related, defined as 802.11 spec 72#define WLAN_ADDR_LEN 6 73#define WLAN_CRC_LEN 4 74#define WLAN_CRC32_LEN 4 75#define WLAN_FCS_LEN 4 76#define WLAN_BSSID_LEN 6 77#define WLAN_BSS_TS_LEN 8 78#define WLAN_HDR_ADDR2_LEN 16 79#define WLAN_HDR_ADDR3_LEN 24 80#define WLAN_HDR_ADDR4_LEN 30 81#define WLAN_IEHDR_LEN 2 82#define WLAN_SSID_MAXLEN 32 83/*#define WLAN_RATES_MAXLEN 255*/ 84#define WLAN_RATES_MAXLEN 16 85#define WLAN_RATES_MAXLEN_11B 4 86#define WLAN_RSN_MAXLEN 32 87#define WLAN_DATA_MAXLEN 2312 88#define WLAN_A3FR_MAXLEN (WLAN_HDR_ADDR3_LEN + WLAN_DATA_MAXLEN + WLAN_CRC_LEN) 89 90 91#define WLAN_BEACON_FR_MAXLEN WLAN_A3FR_MAXLEN 92#define WLAN_ATIM_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 0) 93#define WLAN_NULLDATA_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 0) 94#define WLAN_DISASSOC_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 2) 95#define WLAN_ASSOCREQ_FR_MAXLEN WLAN_A3FR_MAXLEN 96#define WLAN_ASSOCRESP_FR_MAXLEN WLAN_A3FR_MAXLEN 97#define WLAN_REASSOCREQ_FR_MAXLEN WLAN_A3FR_MAXLEN 98#define WLAN_REASSOCRESP_FR_MAXLEN WLAN_A3FR_MAXLEN 99#define WLAN_PROBEREQ_FR_MAXLEN WLAN_A3FR_MAXLEN 100#define WLAN_PROBERESP_FR_MAXLEN WLAN_A3FR_MAXLEN 101#define WLAN_AUTHEN_FR_MAXLEN WLAN_A3FR_MAXLEN 102#define WLAN_DEAUTHEN_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 2) 103 104 105#define WLAN_WEP_NKEYS 4 106#define WLAN_WEP40_KEYLEN 5 107#define WLAN_WEP104_KEYLEN 13 108#define WLAN_WEP232_KEYLEN 29 109/*#define WLAN_WEPMAX_KEYLEN 29*/ 110#define WLAN_WEPMAX_KEYLEN 32 111#define WLAN_CHALLENGE_IE_MAXLEN 255 112#define WLAN_CHALLENGE_IE_LEN 130 113#define WLAN_CHALLENGE_LEN 128 114#define WLAN_WEP_IV_LEN 4 115#define WLAN_WEP_ICV_LEN 4 116#define WLAN_FRAGS_MAX 16 117 118/* Frame Type */ 119#define WLAN_TYPE_MGR 0x00 120#define WLAN_TYPE_CTL 0x01 121#define WLAN_TYPE_DATA 0x02 122 123#define WLAN_FTYPE_MGMT 0x00 124#define WLAN_FTYPE_CTL 0x01 125#define WLAN_FTYPE_DATA 0x02 126 127 128/* Frame Subtypes */ 129#define WLAN_FSTYPE_ASSOCREQ 0x00 130#define WLAN_FSTYPE_ASSOCRESP 0x01 131#define WLAN_FSTYPE_REASSOCREQ 0x02 132#define WLAN_FSTYPE_REASSOCRESP 0x03 133#define WLAN_FSTYPE_PROBEREQ 0x04 134#define WLAN_FSTYPE_PROBERESP 0x05 135#define WLAN_FSTYPE_BEACON 0x08 136#define WLAN_FSTYPE_ATIM 0x09 137#define WLAN_FSTYPE_DISASSOC 0x0a 138#define WLAN_FSTYPE_AUTHEN 0x0b 139#define WLAN_FSTYPE_DEAUTHEN 0x0c 140#define WLAN_FSTYPE_ACTION 0x0d 141 142/* Control */ 143#define WLAN_FSTYPE_PSPOLL 0x0a 144#define WLAN_FSTYPE_RTS 0x0b 145#define WLAN_FSTYPE_CTS 0x0c 146#define WLAN_FSTYPE_ACK 0x0d 147#define WLAN_FSTYPE_CFEND 0x0e 148#define WLAN_FSTYPE_CFENDCFACK 0x0f 149 150/* Data */ 151#define WLAN_FSTYPE_DATAONLY 0x00 152#define WLAN_FSTYPE_DATA_CFACK 0x01 153#define WLAN_FSTYPE_DATA_CFPOLL 0x02 154#define WLAN_FSTYPE_DATA_CFACK_CFPOLL 0x03 155#define WLAN_FSTYPE_NULL 0x04 156#define WLAN_FSTYPE_CFACK 0x05 157#define WLAN_FSTYPE_CFPOLL 0x06 158#define WLAN_FSTYPE_CFACK_CFPOLL 0x07 159 160 161#ifdef __BIG_ENDIAN 162 163/* GET & SET Frame Control bit */ 164#define WLAN_GET_FC_PRVER(n) ((((unsigned short)(n) >> 8) & (BIT0 | BIT1)) 165#define WLAN_GET_FC_FTYPE(n) ((((unsigned short)(n) >> 8) & (BIT2 | BIT3)) >> 2) 166#define WLAN_GET_FC_FSTYPE(n) ((((unsigned short)(n) >> 8) & (BIT4|BIT5|BIT6|BIT7)) >> 4) 167#define WLAN_GET_FC_TODS(n) ((((unsigned short)(n) << 8) & (BIT8)) >> 8) 168#define WLAN_GET_FC_FROMDS(n) ((((unsigned short)(n) << 8) & (BIT9)) >> 9) 169#define WLAN_GET_FC_MOREFRAG(n) ((((unsigned short)(n) << 8) & (BIT10)) >> 10) 170#define WLAN_GET_FC_RETRY(n) ((((unsigned short)(n) << 8) & (BIT11)) >> 11) 171#define WLAN_GET_FC_PWRMGT(n) ((((unsigned short)(n) << 8) & (BIT12)) >> 12) 172#define WLAN_GET_FC_MOREDATA(n) ((((unsigned short)(n) << 8) & (BIT13)) >> 13) 173#define WLAN_GET_FC_ISWEP(n) ((((unsigned short)(n) << 8) & (BIT14)) >> 14) 174#define WLAN_GET_FC_ORDER(n) ((((unsigned short)(n) << 8) & (BIT15)) >> 15) 175 176/* Sequence Field bit */ 177#define WLAN_GET_SEQ_FRGNUM(n) (((unsigned short)(n) >> 8) & (BIT0|BIT1|BIT2|BIT3)) 178#define WLAN_GET_SEQ_SEQNUM(n) ((((unsigned short)(n) >> 8) & (~(BIT0|BIT1|BIT2|BIT3))) >> 4) 179 180 181/* Capability Field bit */ 182#define WLAN_GET_CAP_INFO_ESS(n) (((n) >> 8) & BIT0) 183#define WLAN_GET_CAP_INFO_IBSS(n) ((((n) >> 8) & BIT1) >> 1) 184#define WLAN_GET_CAP_INFO_CFPOLLABLE(n) ((((n) >> 8) & BIT2) >> 2) 185#define WLAN_GET_CAP_INFO_CFPOLLREQ(n) ((((n) >> 8) & BIT3) >> 3) 186#define WLAN_GET_CAP_INFO_PRIVACY(n) ((((n) >> 8) & BIT4) >> 4) 187#define WLAN_GET_CAP_INFO_SHORTPREAMBLE(n) ((((n) >> 8) & BIT5) >> 5) 188#define WLAN_GET_CAP_INFO_PBCC(n) ((((n) >> 8) & BIT6) >> 6) 189#define WLAN_GET_CAP_INFO_AGILITY(n) ((((n) >> 8) & BIT7) >> 7) 190#define WLAN_GET_CAP_INFO_SPECTRUMMNG(n) ((((n)) & BIT8) >> 10) 191#define WLAN_GET_CAP_INFO_SHORTSLOTTIME(n) ((((n)) & BIT10) >> 10) 192#define WLAN_GET_CAP_INFO_DSSSOFDM(n) ((((n)) & BIT13) >> 13) 193#define WLAN_GET_CAP_INFO_GRPACK(n) ((((n)) & BIT14) >> 14) 194 195 196#else 197 198/* GET & SET Frame Control bit */ 199#define WLAN_GET_FC_PRVER(n) (((unsigned short)(n)) & (BIT0 | BIT1)) 200#define WLAN_GET_FC_FTYPE(n) ((((unsigned short)(n)) & (BIT2 | BIT3)) >> 2) 201#define WLAN_GET_FC_FSTYPE(n) ((((unsigned short)(n)) & (BIT4|BIT5|BIT6|BIT7)) >> 4) 202#define WLAN_GET_FC_TODS(n) ((((unsigned short)(n)) & (BIT8)) >> 8) 203#define WLAN_GET_FC_FROMDS(n) ((((unsigned short)(n)) & (BIT9)) >> 9) 204#define WLAN_GET_FC_MOREFRAG(n) ((((unsigned short)(n)) & (BIT10)) >> 10) 205#define WLAN_GET_FC_RETRY(n) ((((unsigned short)(n)) & (BIT11)) >> 11) 206#define WLAN_GET_FC_PWRMGT(n) ((((unsigned short)(n)) & (BIT12)) >> 12) 207#define WLAN_GET_FC_MOREDATA(n) ((((unsigned short)(n)) & (BIT13)) >> 13) 208#define WLAN_GET_FC_ISWEP(n) ((((unsigned short)(n)) & (BIT14)) >> 14) 209#define WLAN_GET_FC_ORDER(n) ((((unsigned short)(n)) & (BIT15)) >> 15) 210 211 212/* Sequence Field bit */ 213#define WLAN_GET_SEQ_FRGNUM(n) (((unsigned short)(n)) & (BIT0|BIT1|BIT2|BIT3)) 214#define WLAN_GET_SEQ_SEQNUM(n) ((((unsigned short)(n)) & (~(BIT0|BIT1|BIT2|BIT3))) >> 4) 215 216 217/* Capability Field bit */ 218#define WLAN_GET_CAP_INFO_ESS(n) ((n) & BIT0) 219#define WLAN_GET_CAP_INFO_IBSS(n) (((n) & BIT1) >> 1) 220#define WLAN_GET_CAP_INFO_CFPOLLABLE(n) (((n) & BIT2) >> 2) 221#define WLAN_GET_CAP_INFO_CFPOLLREQ(n) (((n) & BIT3) >> 3) 222#define WLAN_GET_CAP_INFO_PRIVACY(n) (((n) & BIT4) >> 4) 223#define WLAN_GET_CAP_INFO_SHORTPREAMBLE(n) (((n) & BIT5) >> 5) 224#define WLAN_GET_CAP_INFO_PBCC(n) (((n) & BIT6) >> 6) 225#define WLAN_GET_CAP_INFO_AGILITY(n) (((n) & BIT7) >> 7) 226#define WLAN_GET_CAP_INFO_SPECTRUMMNG(n) (((n) & BIT8) >> 10) 227#define WLAN_GET_CAP_INFO_SHORTSLOTTIME(n) (((n) & BIT10) >> 10) 228#define WLAN_GET_CAP_INFO_DSSSOFDM(n) (((n) & BIT13) >> 13) 229#define WLAN_GET_CAP_INFO_GRPACK(n) (((n) & BIT14) >> 14) 230 231 232#endif /*#ifdef __BIG_ENDIAN */ 233 234 235#define WLAN_SET_CAP_INFO_ESS(n) (n) 236#define WLAN_SET_CAP_INFO_IBSS(n) ((n) << 1) 237#define WLAN_SET_CAP_INFO_CFPOLLABLE(n) ((n) << 2) 238#define WLAN_SET_CAP_INFO_CFPOLLREQ(n) ((n) << 3) 239#define WLAN_SET_CAP_INFO_PRIVACY(n) ((n) << 4) 240#define WLAN_SET_CAP_INFO_SHORTPREAMBLE(n) ((n) << 5) 241#define WLAN_SET_CAP_INFO_SPECTRUMMNG(n) ((n) << 8) 242#define WLAN_SET_CAP_INFO_PBCC(n) ((n) << 6) 243#define WLAN_SET_CAP_INFO_AGILITY(n) ((n) << 7) 244#define WLAN_SET_CAP_INFO_SHORTSLOTTIME(n) ((n) << 10) 245#define WLAN_SET_CAP_INFO_DSSSOFDM(n) ((n) << 13) 246#define WLAN_SET_CAP_INFO_GRPACK(n) ((n) << 14) 247 248 249#define WLAN_SET_FC_PRVER(n) ((unsigned short)(n)) 250#define WLAN_SET_FC_FTYPE(n) (((unsigned short)(n)) << 2) 251#define WLAN_SET_FC_FSTYPE(n) (((unsigned short)(n)) << 4) 252#define WLAN_SET_FC_TODS(n) (((unsigned short)(n)) << 8) 253#define WLAN_SET_FC_FROMDS(n) (((unsigned short)(n)) << 9) 254#define WLAN_SET_FC_MOREFRAG(n) (((unsigned short)(n)) << 10) 255#define WLAN_SET_FC_RETRY(n) (((unsigned short)(n)) << 11) 256#define WLAN_SET_FC_PWRMGT(n) (((unsigned short)(n)) << 12) 257#define WLAN_SET_FC_MOREDATA(n) (((unsigned short)(n)) << 13) 258#define WLAN_SET_FC_ISWEP(n) (((unsigned short)(n)) << 14) 259#define WLAN_SET_FC_ORDER(n) (((unsigned short)(n)) << 15) 260 261#define WLAN_SET_SEQ_FRGNUM(n) ((unsigned short)(n)) 262#define WLAN_SET_SEQ_SEQNUM(n) (((unsigned short)(n)) << 4) 263 264/* ERP Field bit */ 265 266#define WLAN_GET_ERP_NONERP_PRESENT(n) ((n) & BIT0) 267#define WLAN_GET_ERP_USE_PROTECTION(n) (((n) & BIT1) >> 1) 268#define WLAN_GET_ERP_BARKER_MODE(n) (((n) & BIT2) >> 2) 269 270#define WLAN_SET_ERP_NONERP_PRESENT(n) (n) 271#define WLAN_SET_ERP_USE_PROTECTION(n) ((n) << 1) 272#define WLAN_SET_ERP_BARKER_MODE(n) ((n) << 2) 273 274 275 276/* Support & Basic Rates field */ 277#define WLAN_MGMT_IS_BASICRATE(b) ((b) & BIT7) 278#define WLAN_MGMT_GET_RATE(b) ((b) & ~BIT7) 279 280/* TIM field */ 281#define WLAN_MGMT_IS_MULTICAST_TIM(b) ((b) & BIT0) 282#define WLAN_MGMT_GET_TIM_OFFSET(b) (((b) & ~BIT0) >> 1) 283 284/* 3-Addr & 4-Addr */ 285#define WLAN_HDR_A3_DATA_PTR(p) (((unsigned char *)(p)) + WLAN_HDR_ADDR3_LEN) 286#define WLAN_HDR_A4_DATA_PTR(p) (((unsigned char *)(p)) + WLAN_HDR_ADDR4_LEN) 287 288/* IEEE ADDR */ 289#define IEEE_ADDR_UNIVERSAL 0x02 290#define IEEE_ADDR_GROUP 0x01 291 292typedef struct { 293 unsigned char abyAddr[6]; 294} IEEE_ADDR, *PIEEE_ADDR; 295 296/* 802.11 Header Format */ 297 298typedef struct tagWLAN_80211HDR_A2 { 299 300 unsigned short wFrameCtl; 301 unsigned short wDurationID; 302 unsigned char abyAddr1[WLAN_ADDR_LEN]; 303 unsigned char abyAddr2[WLAN_ADDR_LEN]; 304 305} __attribute__ ((__packed__)) 306WLAN_80211HDR_A2, *PWLAN_80211HDR_A2; 307 308typedef struct tagWLAN_80211HDR_A3 { 309 310 unsigned short wFrameCtl; 311 unsigned short wDurationID; 312 unsigned char abyAddr1[WLAN_ADDR_LEN]; 313 unsigned char abyAddr2[WLAN_ADDR_LEN]; 314 unsigned char abyAddr3[WLAN_ADDR_LEN]; 315 unsigned short wSeqCtl; 316 317}__attribute__ ((__packed__)) 318WLAN_80211HDR_A3, *PWLAN_80211HDR_A3; 319 320typedef struct tagWLAN_80211HDR_A4 { 321 322 unsigned short wFrameCtl; 323 unsigned short wDurationID; 324 unsigned char abyAddr1[WLAN_ADDR_LEN]; 325 unsigned char abyAddr2[WLAN_ADDR_LEN]; 326 unsigned char abyAddr3[WLAN_ADDR_LEN]; 327 unsigned short wSeqCtl; 328 unsigned char abyAddr4[WLAN_ADDR_LEN]; 329 330} __attribute__ ((__packed__)) 331WLAN_80211HDR_A4, *PWLAN_80211HDR_A4; 332 333 334typedef union tagUWLAN_80211HDR { 335 336 WLAN_80211HDR_A2 sA2; 337 WLAN_80211HDR_A3 sA3; 338 WLAN_80211HDR_A4 sA4; 339 340} UWLAN_80211HDR, *PUWLAN_80211HDR; 341 342 343/*--------------------- Export Classes ----------------------------*/ 344 345/*--------------------- Export Variables --------------------------*/ 346 347/*--------------------- Export Functions --------------------------*/ 348 349 350 351#endif /* __80211HDR_H__ */ 352 353 354