p80211hdr.h revision 677833bc953b6cb418c701facbdcf4aa18d6c44e
*
* Macros, types, and functions for handling 802.11 MAC headers
*
* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
* --------------------------------------------------------------------
*
* linux-wlan
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU Public License version 2 (the "GPL"), in which
* case the provisions of the GPL are applicable instead of the
* above. If you wish to allow the use of your version of this file
* only under the terms of the GPL and not to allow others to use
* your version of this file under the MPL, indicate your decision
* by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL. If you do not delete
* the provisions above, a recipient may use your version of this
* file under either the MPL or the GPL.
*
* --------------------------------------------------------------------
*
* Inquiries regarding the linux-wlan Open Source project can be
* made directly to:
*
* AbsoluteValue Systems Inc.
* info@linux-wlan.com
*
* --------------------------------------------------------------------
*
* Portions of the development of this software were funded by
* Intersil Corporation as part of PRISM(R) chipset product development.
*
* --------------------------------------------------------------------
*
* This file declares the constants and types used in the interface
* between a wlan driver and the user mode utilities.
*
* Note:
* - Constant values are always in HOST byte order. To assign
* values to multi-byte fields they _must_ be converted to
* ieee byte order. To retrieve multi-byte values from incoming
* frames, they must be converted to host order.
*
* All functions declared here are implemented in p80211.c
* --------------------------------------------------------------------
*/
#ifndef _P80211HDR_H
#define _P80211HDR_H
/*================================================================*/
/* System Includes */
/*================================================================*/
/* Project Includes */
#ifndef _WLAN_COMPAT_H
#include <wlan/wlan_compat.h>
#endif
/*================================================================*/
/* Constants */
/*--- Sizes -----------------------------------------------*/
#define WLAN_ADDR_LEN 6
#define WLAN_CRC_LEN 4
#define WLAN_BSSID_LEN 6
#define WLAN_BSS_TS_LEN 8
#define WLAN_HDR_A3_LEN 24
#define WLAN_HDR_A4_LEN 30
#define WLAN_SSID_MAXLEN 32
#define WLAN_DATA_MAXLEN 2312
#define WLAN_ATIM_FR_MAXLEN (WLAN_HDR_A3_LEN + 0)
#define WLAN_WEP_NKEYS 4
#define WLAN_WEP_MAXKEYLEN 13
#define WLAN_CHALLENGE_IE_LEN 130
#define WLAN_CHALLENGE_LEN 128
#define WLAN_WEP_IV_LEN 4
#define WLAN_WEP_ICV_LEN 4
/*--- Frame Control Field -------------------------------------*/
/* Frame Types */
#define WLAN_FTYPE_MGMT 0x00
#define WLAN_FTYPE_CTL 0x01
#define WLAN_FTYPE_DATA 0x02
/* Frame subtypes */
/* Management */
#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
/* 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
/*================================================================*/
/* Macros */
/*--- FC Macros ----------------------------------------------*/
/* GET_FC_??? - takes the host byte-order value of an FC */
/* and retrieves the value of one of the */
/* bitfields and moves that value so its lsb is */
/* in bit 0. */
/* SET_FC_??? - takes a host order value for one of the FC */
/* bitfields and moves it to the proper bit */
/* location for ORing into a host order FC. */
/* To send the FC produced from SET_FC_???, */
/* one must put the bytes in IEEE order. */
/* e.g. */
/* printf("the frame subtype is %x", */
/* GET_FC_FTYPE( ieee2host( rx.fc ))) */
/* */
/* tx.fc = host2ieee( SET_FC_FTYPE(WLAN_FTYP_CTL) | */
/* SET_FC_FSTYPE(WLAN_FSTYPE_RTS) ); */
/*------------------------------------------------------------*/
#define WLAN_SET_FC_PVER(n) ((UINT16)(n))
/*--- Duration Macros ----------------------------------------*/
/* - the duration value is only valid when bit15 is zero */
/* - the firmware handles these values, so I'm not going */
/* these macros right now. */
/*------------------------------------------------------------*/
/*--- Sequence Control Macros -------------------------------*/
/* Field. */
/*------------------------------------------------------------*/
/*--- Data ptr macro -----------------------------------------*/
/* Creates a UINT8* to the data portion of a frame */
/* Assumes you're passing in a ptr to the beginning of the hdr*/
/*------------------------------------------------------------*/
/*================================================================*/
/* Types */
/* BSS Timestamp */
/* Generic 802.11 Header types */
typedef struct p80211_hdr_a3
{
typedef struct p80211_hdr_a4
{
typedef union p80211_hdr
{
/*================================================================*/
/* Extern Declarations */
/*================================================================*/
/* Function Declarations */
#endif /* _P80211HDR_H */