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/*
* 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__ */
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