| /* |
| * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * File: 80211hdr.h |
| * |
| * Purpose: 802.11 MAC headers related pre-defines and macros. |
| * |
| * Author: Lyndon Chen |
| * |
| * Date: Apr 8, 2002 |
| */ |
| |
| #ifndef __80211HDR_H__ |
| #define __80211HDR_H__ |
| |
| /* bit type */ |
| #define BIT0 0x00000001 |
| #define BIT1 0x00000002 |
| #define BIT2 0x00000004 |
| #define BIT3 0x00000008 |
| #define BIT4 0x00000010 |
| #define BIT5 0x00000020 |
| #define BIT6 0x00000040 |
| #define BIT7 0x00000080 |
| #define BIT8 0x00000100 |
| #define BIT9 0x00000200 |
| #define BIT10 0x00000400 |
| #define BIT11 0x00000800 |
| #define BIT12 0x00001000 |
| #define BIT13 0x00002000 |
| #define BIT14 0x00004000 |
| #define BIT15 0x00008000 |
| #define BIT16 0x00010000 |
| #define BIT17 0x00020000 |
| #define BIT18 0x00040000 |
| #define BIT19 0x00080000 |
| #define BIT20 0x00100000 |
| #define BIT21 0x00200000 |
| #define BIT22 0x00400000 |
| #define BIT23 0x00800000 |
| #define BIT24 0x01000000 |
| #define BIT25 0x02000000 |
| #define BIT26 0x04000000 |
| #define BIT27 0x08000000 |
| #define BIT28 0x10000000 |
| #define BIT29 0x20000000 |
| #define BIT30 0x40000000 |
| #define BIT31 0x80000000 |
| |
| /* 802.11 frame related, defined as 802.11 spec */ |
| #define WLAN_ADDR_LEN 6 |
| #define WLAN_CRC_LEN 4 |
| #define WLAN_CRC32_LEN 4 |
| #define WLAN_FCS_LEN 4 |
| #define WLAN_BSSID_LEN 6 |
| #define WLAN_BSS_TS_LEN 8 |
| #define WLAN_HDR_ADDR2_LEN 16 |
| #define WLAN_HDR_ADDR3_LEN 24 |
| #define WLAN_HDR_ADDR4_LEN 30 |
| #define WLAN_IEHDR_LEN 2 |
| #define WLAN_SSID_MAXLEN 32 |
| #define WLAN_RATES_MAXLEN 16 |
| #define WLAN_RATES_MAXLEN_11B 4 |
| #define WLAN_RSN_MAXLEN 32 |
| #define WLAN_DATA_MAXLEN 2312 |
| #define WLAN_A3FR_MAXLEN (WLAN_HDR_ADDR3_LEN \ |
| + WLAN_DATA_MAXLEN \ |
| + WLAN_CRC_LEN) |
| |
| #define WLAN_BEACON_FR_MAXLEN WLAN_A3FR_MAXLEN |
| #define WLAN_ATIM_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 0) |
| #define WLAN_NULLDATA_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 0) |
| #define WLAN_DISASSOC_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 2) |
| #define WLAN_ASSOCREQ_FR_MAXLEN WLAN_A3FR_MAXLEN |
| #define WLAN_ASSOCRESP_FR_MAXLEN WLAN_A3FR_MAXLEN |
| #define WLAN_REASSOCREQ_FR_MAXLEN WLAN_A3FR_MAXLEN |
| #define WLAN_REASSOCRESP_FR_MAXLEN WLAN_A3FR_MAXLEN |
| #define WLAN_PROBEREQ_FR_MAXLEN WLAN_A3FR_MAXLEN |
| #define WLAN_PROBERESP_FR_MAXLEN WLAN_A3FR_MAXLEN |
| #define WLAN_AUTHEN_FR_MAXLEN WLAN_A3FR_MAXLEN |
| #define WLAN_DEAUTHEN_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 2) |
| |
| #define WLAN_WEP_NKEYS 4 |
| #define WLAN_WEP40_KEYLEN 5 |
| #define WLAN_WEP104_KEYLEN 13 |
| #define WLAN_WEP232_KEYLEN 29 |
| #define WLAN_WEPMAX_KEYLEN 32 |
| #define WLAN_CHALLENGE_IE_MAXLEN 255 |
| #define WLAN_CHALLENGE_IE_LEN 130 |
| #define WLAN_CHALLENGE_LEN 128 |
| #define WLAN_WEP_IV_LEN 4 |
| #define WLAN_WEP_ICV_LEN 4 |
| #define WLAN_FRAGS_MAX 16 |
| |
| /* Frame Type */ |
| #define WLAN_TYPE_MGR 0x00 |
| #define WLAN_TYPE_CTL 0x01 |
| #define WLAN_TYPE_DATA 0x02 |
| |
| #define WLAN_FTYPE_MGMT 0x00 |
| #define WLAN_FTYPE_CTL 0x01 |
| #define WLAN_FTYPE_DATA 0x02 |
| |
| /* Frame Subtypes */ |
| #define WLAN_FSTYPE_ASSOCREQ 0x00 |
| #define WLAN_FSTYPE_ASSOCRESP 0x01 |
| #define WLAN_FSTYPE_REASSOCREQ 0x02 |
| #define WLAN_FSTYPE_REASSOCRESP 0x03 |
| #define WLAN_FSTYPE_PROBEREQ 0x04 |
| #define WLAN_FSTYPE_PROBERESP 0x05 |
| #define WLAN_FSTYPE_BEACON 0x08 |
| #define WLAN_FSTYPE_ATIM 0x09 |
| #define WLAN_FSTYPE_DISASSOC 0x0a |
| #define WLAN_FSTYPE_AUTHEN 0x0b |
| #define WLAN_FSTYPE_DEAUTHEN 0x0c |
| #define WLAN_FSTYPE_ACTION 0x0d |
| |
| /* Control */ |
| #define WLAN_FSTYPE_PSPOLL 0x0a |
| #define WLAN_FSTYPE_RTS 0x0b |
| #define WLAN_FSTYPE_CTS 0x0c |
| #define WLAN_FSTYPE_ACK 0x0d |
| #define WLAN_FSTYPE_CFEND 0x0e |
| #define WLAN_FSTYPE_CFENDCFACK 0x0f |
| |
| /* Data */ |
| #define WLAN_FSTYPE_DATAONLY 0x00 |
| #define WLAN_FSTYPE_DATA_CFACK 0x01 |
| #define WLAN_FSTYPE_DATA_CFPOLL 0x02 |
| #define WLAN_FSTYPE_DATA_CFACK_CFPOLL 0x03 |
| #define WLAN_FSTYPE_NULL 0x04 |
| #define WLAN_FSTYPE_CFACK 0x05 |
| #define WLAN_FSTYPE_CFPOLL 0x06 |
| #define WLAN_FSTYPE_CFACK_CFPOLL 0x07 |
| |
| #ifdef __BIG_ENDIAN |
| |
| /* GET & SET Frame Control bit */ |
| #define WLAN_GET_FC_PRVER(n) ((((u16)(n) >> 8) & (BIT0 | BIT1)) |
| #define WLAN_GET_FC_FTYPE(n) ((((u16)(n) >> 8) & (BIT2 | BIT3)) >> 2) |
| #define WLAN_GET_FC_FSTYPE(n) ((((u16)(n) >> 8) \ |
| & (BIT4|BIT5|BIT6|BIT7)) >> 4) |
| #define WLAN_GET_FC_TODS(n) ((((u16)(n) << 8) & (BIT8)) >> 8) |
| #define WLAN_GET_FC_FROMDS(n) ((((u16)(n) << 8) & (BIT9)) >> 9) |
| #define WLAN_GET_FC_MOREFRAG(n) ((((u16)(n) << 8) & (BIT10)) >> 10) |
| #define WLAN_GET_FC_RETRY(n) ((((u16)(n) << 8) & (BIT11)) >> 11) |
| #define WLAN_GET_FC_PWRMGT(n) ((((u16)(n) << 8) & (BIT12)) >> 12) |
| #define WLAN_GET_FC_MOREDATA(n) ((((u16)(n) << 8) & (BIT13)) >> 13) |
| #define WLAN_GET_FC_ISWEP(n) ((((u16)(n) << 8) & (BIT14)) >> 14) |
| #define WLAN_GET_FC_ORDER(n) ((((u16)(n) << 8) & (BIT15)) >> 15) |
| |
| /* Sequence Field bit */ |
| #define WLAN_GET_SEQ_FRGNUM(n) (((u16)(n) >> 8) & (BIT0|BIT1|BIT2|BIT3)) |
| #define WLAN_GET_SEQ_SEQNUM(n) ((((u16)(n) >> 8) \ |
| & (~(BIT0|BIT1|BIT2|BIT3))) >> 4) |
| |
| /* Capability Field bit */ |
| #define WLAN_GET_CAP_INFO_ESS(n) (((n) >> 8) & BIT0) |
| #define WLAN_GET_CAP_INFO_IBSS(n) ((((n) >> 8) & BIT1) >> 1) |
| #define WLAN_GET_CAP_INFO_CFPOLLABLE(n) ((((n) >> 8) & BIT2) >> 2) |
| #define WLAN_GET_CAP_INFO_CFPOLLREQ(n) ((((n) >> 8) & BIT3) >> 3) |
| #define WLAN_GET_CAP_INFO_PRIVACY(n) ((((n) >> 8) & BIT4) >> 4) |
| #define WLAN_GET_CAP_INFO_SHORTPREAMBLE(n) ((((n) >> 8) & BIT5) >> 5) |
| #define WLAN_GET_CAP_INFO_PBCC(n) ((((n) >> 8) & BIT6) >> 6) |
| #define WLAN_GET_CAP_INFO_AGILITY(n) ((((n) >> 8) & BIT7) >> 7) |
| #define WLAN_GET_CAP_INFO_SPECTRUMMNG(n) ((((n)) & BIT8) >> 10) |
| #define WLAN_GET_CAP_INFO_SHORTSLOTTIME(n) ((((n)) & BIT10) >> 10) |
| #define WLAN_GET_CAP_INFO_DSSSOFDM(n) ((((n)) & BIT13) >> 13) |
| #define WLAN_GET_CAP_INFO_GRPACK(n) ((((n)) & BIT14) >> 14) |
| |
| #else |
| |
| /* GET & SET Frame Control bit */ |
| #define WLAN_GET_FC_PRVER(n) (((u16)(n)) & (BIT0 | BIT1)) |
| #define WLAN_GET_FC_FTYPE(n) ((((u16)(n)) & (BIT2 | BIT3)) >> 2) |
| #define WLAN_GET_FC_FSTYPE(n) ((((u16)(n)) & (BIT4|BIT5|BIT6|BIT7)) >> 4) |
| #define WLAN_GET_FC_TODS(n) ((((u16)(n)) & (BIT8)) >> 8) |
| #define WLAN_GET_FC_FROMDS(n) ((((u16)(n)) & (BIT9)) >> 9) |
| #define WLAN_GET_FC_MOREFRAG(n) ((((u16)(n)) & (BIT10)) >> 10) |
| #define WLAN_GET_FC_RETRY(n) ((((u16)(n)) & (BIT11)) >> 11) |
| #define WLAN_GET_FC_PWRMGT(n) ((((u16)(n)) & (BIT12)) >> 12) |
| #define WLAN_GET_FC_MOREDATA(n) ((((u16)(n)) & (BIT13)) >> 13) |
| #define WLAN_GET_FC_ISWEP(n) ((((u16)(n)) & (BIT14)) >> 14) |
| #define WLAN_GET_FC_ORDER(n) ((((u16)(n)) & (BIT15)) >> 15) |
| |
| /* Sequence Field bit */ |
| #define WLAN_GET_SEQ_FRGNUM(n) (((u16)(n)) & (BIT0|BIT1|BIT2|BIT3)) |
| #define WLAN_GET_SEQ_SEQNUM(n) ((((u16)(n)) & (~(BIT0|BIT1|BIT2|BIT3))) >> 4) |
| |
| /* Capability Field bit */ |
| #define WLAN_GET_CAP_INFO_ESS(n) ((n) & BIT0) |
| #define WLAN_GET_CAP_INFO_IBSS(n) (((n) & BIT1) >> 1) |
| #define WLAN_GET_CAP_INFO_CFPOLLABLE(n) (((n) & BIT2) >> 2) |
| #define WLAN_GET_CAP_INFO_CFPOLLREQ(n) (((n) & BIT3) >> 3) |
| #define WLAN_GET_CAP_INFO_PRIVACY(n) (((n) & BIT4) >> 4) |
| #define WLAN_GET_CAP_INFO_SHORTPREAMBLE(n) (((n) & BIT5) >> 5) |
| #define WLAN_GET_CAP_INFO_PBCC(n) (((n) & BIT6) >> 6) |
| #define WLAN_GET_CAP_INFO_AGILITY(n) (((n) & BIT7) >> 7) |
| #define WLAN_GET_CAP_INFO_SPECTRUMMNG(n) (((n) & BIT8) >> 10) |
| #define WLAN_GET_CAP_INFO_SHORTSLOTTIME(n) (((n) & BIT10) >> 10) |
| #define WLAN_GET_CAP_INFO_DSSSOFDM(n) (((n) & BIT13) >> 13) |
| #define WLAN_GET_CAP_INFO_GRPACK(n) (((n) & BIT14) >> 14) |
| |
| #endif /* #ifdef __BIG_ENDIAN */ |
| |
| #define WLAN_SET_CAP_INFO_ESS(n) (n) |
| #define WLAN_SET_CAP_INFO_IBSS(n) ((n) << 1) |
| #define WLAN_SET_CAP_INFO_CFPOLLABLE(n) ((n) << 2) |
| #define WLAN_SET_CAP_INFO_CFPOLLREQ(n) ((n) << 3) |
| #define WLAN_SET_CAP_INFO_PRIVACY(n) ((n) << 4) |
| #define WLAN_SET_CAP_INFO_SHORTPREAMBLE(n) ((n) << 5) |
| #define WLAN_SET_CAP_INFO_SPECTRUMMNG(n) ((n) << 8) |
| #define WLAN_SET_CAP_INFO_PBCC(n) ((n) << 6) |
| #define WLAN_SET_CAP_INFO_AGILITY(n) ((n) << 7) |
| #define WLAN_SET_CAP_INFO_SHORTSLOTTIME(n) ((n) << 10) |
| #define WLAN_SET_CAP_INFO_DSSSOFDM(n) ((n) << 13) |
| #define WLAN_SET_CAP_INFO_GRPACK(n) ((n) << 14) |
| |
| #define WLAN_SET_FC_PRVER(n) ((u16)(n)) |
| #define WLAN_SET_FC_FTYPE(n) (((u16)(n)) << 2) |
| #define WLAN_SET_FC_FSTYPE(n) (((u16)(n)) << 4) |
| #define WLAN_SET_FC_TODS(n) (((u16)(n)) << 8) |
| #define WLAN_SET_FC_FROMDS(n) (((u16)(n)) << 9) |
| #define WLAN_SET_FC_MOREFRAG(n) (((u16)(n)) << 10) |
| #define WLAN_SET_FC_RETRY(n) (((u16)(n)) << 11) |
| #define WLAN_SET_FC_PWRMGT(n) (((u16)(n)) << 12) |
| #define WLAN_SET_FC_MOREDATA(n) (((u16)(n)) << 13) |
| #define WLAN_SET_FC_ISWEP(n) (((u16)(n)) << 14) |
| #define WLAN_SET_FC_ORDER(n) (((u16)(n)) << 15) |
| |
| #define WLAN_SET_SEQ_FRGNUM(n) ((u16)(n)) |
| #define WLAN_SET_SEQ_SEQNUM(n) (((u16)(n)) << 4) |
| |
| /* ERP Field bit */ |
| |
| #define WLAN_GET_ERP_NONERP_PRESENT(n) ((n) & BIT0) |
| #define WLAN_GET_ERP_USE_PROTECTION(n) (((n) & BIT1) >> 1) |
| #define WLAN_GET_ERP_BARKER_MODE(n) (((n) & BIT2) >> 2) |
| |
| #define WLAN_SET_ERP_NONERP_PRESENT(n) (n) |
| #define WLAN_SET_ERP_USE_PROTECTION(n) ((n) << 1) |
| #define WLAN_SET_ERP_BARKER_MODE(n) ((n) << 2) |
| |
| /* Support & Basic Rates field */ |
| #define WLAN_MGMT_IS_BASICRATE(b) ((b) & BIT7) |
| #define WLAN_MGMT_GET_RATE(b) ((b) & ~BIT7) |
| |
| /* TIM field */ |
| #define WLAN_MGMT_IS_MULTICAST_TIM(b) ((b) & BIT0) |
| #define WLAN_MGMT_GET_TIM_OFFSET(b) (((b) & ~BIT0) >> 1) |
| |
| /* 3-Addr & 4-Addr */ |
| #define WLAN_HDR_A3_DATA_PTR(p) (((u8 *)(p)) + WLAN_HDR_ADDR3_LEN) |
| #define WLAN_HDR_A4_DATA_PTR(p) (((u8 *)(p)) + WLAN_HDR_ADDR4_LEN) |
| |
| /* IEEE ADDR */ |
| #define IEEE_ADDR_UNIVERSAL 0x02 |
| #define IEEE_ADDR_GROUP 0x01 |
| |
| typedef struct { |
| u8 abyAddr[6]; |
| } IEEE_ADDR, *PIEEE_ADDR; |
| |
| /* 802.11 Header Format */ |
| |
| typedef struct tagWLAN_80211HDR_A2 { |
| |
| u16 wFrameCtl; |
| u16 wDurationID; |
| u8 abyAddr1[WLAN_ADDR_LEN]; |
| u8 abyAddr2[WLAN_ADDR_LEN]; |
| |
| } __attribute__ ((__packed__)) |
| WLAN_80211HDR_A2, *PWLAN_80211HDR_A2; |
| |
| typedef struct tagWLAN_80211HDR_A3 { |
| |
| u16 wFrameCtl; |
| u16 wDurationID; |
| u8 abyAddr1[WLAN_ADDR_LEN]; |
| u8 abyAddr2[WLAN_ADDR_LEN]; |
| u8 abyAddr3[WLAN_ADDR_LEN]; |
| u16 wSeqCtl; |
| |
| } __attribute__ ((__packed__)) |
| WLAN_80211HDR_A3, *PWLAN_80211HDR_A3; |
| |
| typedef struct tagWLAN_80211HDR_A4 { |
| |
| u16 wFrameCtl; |
| u16 wDurationID; |
| u8 abyAddr1[WLAN_ADDR_LEN]; |
| u8 abyAddr2[WLAN_ADDR_LEN]; |
| u8 abyAddr3[WLAN_ADDR_LEN]; |
| u16 wSeqCtl; |
| u8 abyAddr4[WLAN_ADDR_LEN]; |
| |
| } __attribute__ ((__packed__)) |
| WLAN_80211HDR_A4, *PWLAN_80211HDR_A4; |
| |
| typedef union tagUWLAN_80211HDR { |
| |
| WLAN_80211HDR_A2 sA2; |
| WLAN_80211HDR_A3 sA3; |
| WLAN_80211HDR_A4 sA4; |
| |
| } UWLAN_80211HDR, *PUWLAN_80211HDR; |
| |
| #endif /* __80211HDR_H__ */ |
