94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
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// ----------------------------------------------------------------------------
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// nicw.h
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//
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// Software implementation of a NIC for simulating an Ethernet network
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//
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// Copyright (C) Microsoft Corporation
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// ----------------------------------------------------------------------------
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#ifndef __NICW_H__
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#define __NICW_H__
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// ---------------------------------------------------------------------------------------
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// CXnNic
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// ---------------------------------------------------------------------------------------
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class NOVTABLE CXnNic : public CXnBase
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{
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friend void WINAPI VLanRecv(BYTE *, UINT, void *);
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// Definitions -----------------------------------------------------------------------
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struct RecvDesc
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{
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DWORD cbDat;
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BYTE rgbBuf[ENET_LINK_MAXSIZE + ENET_DATA_MAXSIZE];
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};
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// External --------------------------------------------------------------------------
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public:
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HAL_DECLARE_NEW_DELETE(CXnNic)
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BOOL NicXmitReady();
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void NicXmit(CPacket * ppkt);
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VIRTUAL void NicTimer() {}
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protected:
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NTSTATUS NicInit(XNetInitParams * pxnip);
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INT NicConfig(const XNetConfigParams * pxncp);
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void NicStart();
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void NicFlush();
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void NicStop();
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void NicTerm();
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VIRTUAL void NicRecvFrame(void * pv, DWORD cbData);
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VIRTUAL void EnetRecv(CPacket * ppkt, UINT uiType) VPURE;
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VIRTUAL void EnetPush() VPURE;
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// Internal --------------------------------------------------------------------------
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private:
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RecvDesc * NextPrd(RecvDesc * prd);
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void XmitPush();
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void RecvPush();
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void SetInterrupts(BOOL fEnable);
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static void DpcCallback(struct _KDPC *, void * pthis, void *, void *);
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INT NicVLanAttach();
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void NicVLanDetach(BOOL fTerm);
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// Data ------------------------------------------------------------------------------
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protected:
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CEnetAddr _ea;
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private:
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LIST_ENTRY _le;
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KDPC _dpcRecv;
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BOOL _fIntr;
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BOOL _fXmitFull;
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LONG _cxdBusy;
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LONG _cxdPool;
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CPacketQueue _pqXmit;
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LONG _crdBusy;
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LONG _crdPool;
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RecvDesc * _prdFirst;
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RecvDesc * _prdRead;
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RecvDesc * _prdWrite;
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RecvDesc * _prdLast;
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BOOL _fVLanInit;
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BOOL _fVLanAttach;
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};
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// ---------------------------------------------------------------------------------------
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#endif
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