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