Linux Kernel: drivers/staging/vt6656/80211hdr.h Source File

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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__
 
 #include "ttype.h"
 
 /*---------------------  Export Definitions -------------------------*/
 
 /* 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)    ((((WORD)(n) >> 8) & (BIT0 | BIT1))
 #define WLAN_GET_FC_FTYPE(n)    ((((WORD)(n) >> 8) & (BIT2 | BIT3)) >> 2)
 #define WLAN_GET_FC_FSTYPE(n)   ((((WORD)(n) >> 8) \
                   & (BIT4|BIT5|BIT6|BIT7)) >> 4)
 #define WLAN_GET_FC_TODS(n)     ((((WORD)(n) << 8) & (BIT8)) >> 8)
 #define WLAN_GET_FC_FROMDS(n)   ((((WORD)(n) << 8) & (BIT9)) >> 9)
 #define WLAN_GET_FC_MOREFRAG(n) ((((WORD)(n) << 8) & (BIT10)) >> 10)
 #define WLAN_GET_FC_RETRY(n)    ((((WORD)(n) << 8) & (BIT11)) >> 11)
 #define WLAN_GET_FC_PWRMGT(n)   ((((WORD)(n) << 8) & (BIT12)) >> 12)
 #define WLAN_GET_FC_MOREDATA(n) ((((WORD)(n) << 8) & (BIT13)) >> 13)
 #define WLAN_GET_FC_ISWEP(n)    ((((WORD)(n) << 8) & (BIT14)) >> 14)
 #define WLAN_GET_FC_ORDER(n)    ((((WORD)(n) << 8) & (BIT15)) >> 15)
 
 /* Sequence Field bit */
 #define WLAN_GET_SEQ_FRGNUM(n) (((WORD)(n) >> 8) & (BIT0|BIT1|BIT2|BIT3))
 #define WLAN_GET_SEQ_SEQNUM(n) ((((WORD)(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)    (((WORD)(n)) & (BIT0 | BIT1))
 #define WLAN_GET_FC_FTYPE(n)    ((((WORD)(n)) & (BIT2 | BIT3)) >> 2)
 #define WLAN_GET_FC_FSTYPE(n)   ((((WORD)(n)) & (BIT4|BIT5|BIT6|BIT7)) >> 4)
 #define WLAN_GET_FC_TODS(n)     ((((WORD)(n)) & (BIT8)) >> 8)
 #define WLAN_GET_FC_FROMDS(n)   ((((WORD)(n)) & (BIT9)) >> 9)
 #define WLAN_GET_FC_MOREFRAG(n) ((((WORD)(n)) & (BIT10)) >> 10)
 #define WLAN_GET_FC_RETRY(n)    ((((WORD)(n)) & (BIT11)) >> 11)
 #define WLAN_GET_FC_PWRMGT(n)   ((((WORD)(n)) & (BIT12)) >> 12)
 #define WLAN_GET_FC_MOREDATA(n) ((((WORD)(n)) & (BIT13)) >> 13)
 #define WLAN_GET_FC_ISWEP(n)    ((((WORD)(n)) & (BIT14)) >> 14)
 #define WLAN_GET_FC_ORDER(n)    ((((WORD)(n)) & (BIT15)) >> 15)
 
 /* Sequence Field bit */
 #define WLAN_GET_SEQ_FRGNUM(n) (((WORD)(n)) & (BIT0|BIT1|BIT2|BIT3))
 #define WLAN_GET_SEQ_SEQNUM(n) ((((WORD)(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)    ((WORD)(n))
 #define WLAN_SET_FC_FTYPE(n)    (((WORD)(n)) << 2)
 #define WLAN_SET_FC_FSTYPE(n)   (((WORD)(n)) << 4)
 #define WLAN_SET_FC_TODS(n)     (((WORD)(n)) << 8)
 #define WLAN_SET_FC_FROMDS(n)   (((WORD)(n)) << 9)
 #define WLAN_SET_FC_MOREFRAG(n) (((WORD)(n)) << 10)
 #define WLAN_SET_FC_RETRY(n)    (((WORD)(n)) << 11)
 #define WLAN_SET_FC_PWRMGT(n)   (((WORD)(n)) << 12)
 #define WLAN_SET_FC_MOREDATA(n) (((WORD)(n)) << 13)
 #define WLAN_SET_FC_ISWEP(n)    (((WORD)(n)) << 14)
 #define WLAN_SET_FC_ORDER(n)    (((WORD)(n)) << 15)
 
 #define WLAN_SET_SEQ_FRGNUM(n) ((WORD)(n))
 #define WLAN_SET_SEQ_SEQNUM(n) (((WORD)(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) (((PBYTE)(p)) + WLAN_HDR_ADDR3_LEN)
 #define WLAN_HDR_A4_DATA_PTR(p) (((PBYTE)(p)) + WLAN_HDR_ADDR4_LEN)
 
 /* IEEE ADDR */
 #define IEEE_ADDR_UNIVERSAL         0x02
 #define IEEE_ADDR_GROUP             0x01
 
 typedef struct {
     BYTE            abyAddr[6];
 } IEEE_ADDR, *PIEEE_ADDR;
 
 /* 802.11 Header Format */
 
 typedef struct tagWLAN_80211HDR_A2 {
 
     WORD    wFrameCtl;
     WORD    wDurationID;
     BYTE    abyAddr1[WLAN_ADDR_LEN];
     BYTE    abyAddr2[WLAN_ADDR_LEN];
 
 } __attribute__ ((__packed__))
 WLAN_80211HDR_A2, *PWLAN_80211HDR_A2;
 
 typedef struct tagWLAN_80211HDR_A3 {
 
     WORD    wFrameCtl;
     WORD    wDurationID;
     BYTE    abyAddr1[WLAN_ADDR_LEN];
     BYTE    abyAddr2[WLAN_ADDR_LEN];
     BYTE    abyAddr3[WLAN_ADDR_LEN];
     WORD    wSeqCtl;
 
 } __attribute__ ((__packed__))
 WLAN_80211HDR_A3, *PWLAN_80211HDR_A3;
 
 typedef struct tagWLAN_80211HDR_A4 {
 
     WORD    wFrameCtl;
     WORD    wDurationID;
     BYTE    abyAddr1[WLAN_ADDR_LEN];
     BYTE    abyAddr2[WLAN_ADDR_LEN];
     BYTE    abyAddr3[WLAN_ADDR_LEN];
     WORD    wSeqCtl;
     BYTE    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;
 
 /*---------------------  Export Classes  ----------------------------*/
 
 /*---------------------  Export Variables  --------------------------*/
 
 /*---------------------  Export Functions  --------------------------*/
 
 #endif /* __80211HDR_H__ */