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 * File: wctl.h 20 * 21 * Purpose: 22 * 23 * Author: Jerry Chen 24 * 25 * Date: Jun. 27, 2002 26 * 27 */ 28 29#ifndef __WCTL_H__ 30#define __WCTL_H__ 31 32#include "ttype.h" 33#include "tether.h" 34#include "device.h" 35 36/*--------------------- Export Definitions -------------------------*/ 37 38#define IS_TYPE_DATA(pMACHeader) \ 39 ((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_DATA) 40 41#define IS_TYPE_MGMT(pMACHeader) \ 42 ((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_MGMT) 43 44#define IS_TYPE_CONTROL(pMACHeader) \ 45 ((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_802_11_MASK) == TYPE_802_11_CTL) 46 47#define IS_FC_MOREDATA(pMACHeader) \ 48 ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREDATA) == FC_MOREDATA) 49 50#define IS_FC_POWERMGT(pMACHeader) \ 51 ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_POWERMGT) == FC_POWERMGT) 52 53#define IS_FC_RETRY(pMACHeader) \ 54 ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_RETRY) == FC_RETRY) 55 56#define IS_FC_WEP(pMACHeader) \ 57 ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_WEP) == FC_WEP) 58 59#ifdef __BIG_ENDIAN 60 61#define IS_FRAGMENT_PKT(pMACHeader) \ 62 (((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) != 0) | \ 63 ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x0F00) != 0)) 64 65#define IS_FIRST_FRAGMENT_PKT(pMACHeader) \ 66 ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x0F00) == 0) 67 68#else 69 70#define IS_FRAGMENT_PKT(pMACHeader) \ 71 (((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) != 0) | \ 72 ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x000F) != 0)) 73 74#define IS_FIRST_FRAGMENT_PKT(pMACHeader) \ 75 ((((PS802_11Header) pMACHeader)->wSeqCtl & 0x000F) == 0) 76 77#endif//#ifdef __BIG_ENDIAN 78 79#define IS_LAST_FRAGMENT_PKT(pMACHeader) \ 80 ((((PS802_11Header) pMACHeader)->wFrameCtl & FC_MOREFRAG) == 0) 81 82#define IS_CTL_PSPOLL(pMACHeader) \ 83 ((((PS802_11Header) pMACHeader)->wFrameCtl & TYPE_SUBTYPE_MASK) == TYPE_CTL_PSPOLL) 84 85 86#define ADD_ONE_WITH_WRAP_AROUND(uVar, uModulo) { \ 87 if ((uVar) >= ((uModulo) - 1)) \ 88 (uVar) = 0; \ 89 else \ 90 (uVar)++; \ 91} 92 93 94/*--------------------- Export Classes ----------------------------*/ 95 96/*--------------------- Export Variables --------------------------*/ 97 98/*--------------------- Export Functions --------------------------*/ 99 100bool WCTLbIsDuplicate(PSCache pCache, PS802_11Header pMACHeader); 101bool WCTLbHandleFragment(PSDevice pDevice, PS802_11Header pMACHeader, 102 unsigned int cbFrameLength, bool bWEP, bool bExtIV); 103unsigned int WCTLuSearchDFCB(PSDevice pDevice, PS802_11Header pMACHeader); 104unsigned int WCTLuInsertDFCB(PSDevice pDevice, PS802_11Header pMACHeader); 105 106#endif // __WCTL_H__ 107