90 lines
1.6 KiB
C
90 lines
1.6 KiB
C
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/*++
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Copyright (c) 1992-1996 Microsoft Corporation
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Module Name:
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file.h
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Abstract:
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This file contains the data declarations for the disk format of arp cache.
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Author:
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Jameel Hyder (jameelh@microsoft.com) July 1996
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Environment:
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Kernel mode
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Revision History:
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--*/
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#ifndef _FILE_
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#define _FILE_
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#define DISK_HDR_SIGNATURE 'SprA'
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#define DISK_HDR_VERSION 0x00010000 // 1.0
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#define DISK_BUFFER_SIZE 4096 // Amount read or written at a time
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//
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// The file consists of a header, followed by individual entries.
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//
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typedef struct
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{
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ULONG Signature;
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ULONG Version;
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ULONG TimeStamp; // Time written
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ULONG NumberOfArpEntries;
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} DISK_HEADER, *PDISK_HEADER;
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typedef struct
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{
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UCHAR AddrType;
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UCHAR AddrLen;
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UCHAR SubAddrType;
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UCHAR SubAddrLen;
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UCHAR Address[ATM_ADDRESS_LENGTH];
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//
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// This is followed by SubAddress if one is present
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//
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// UCHAR SubAddress[ATM_ADDRESS_LENGTH];
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} DISK_ATMADDR;
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typedef struct
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{
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IPADDR IpAddr;
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DISK_ATMADDR AtmAddr;
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} DISK_ENTRY, *PDISK_ENTRY;
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#define SIZE_4N(_x_) (((_x_) + 3) & ~3)
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#define LinkDoubleAtHead(_pHead, _p) \
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{ \
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(_p)->Next = (_pHead); \
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(_p)->Prev = &(_pHead); \
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if ((_pHead) != NULL) \
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(_pHead)->Prev = &(_p)->Next; \
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(_pHead) = (_p); \
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}
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#define LinkDoubleAtEnd(_pThis, _pLast) \
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{ \
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(_pLast)->Next = (_pThis); \
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(_pThis)->Prev = &(_pLast)->Next; \
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(_pThis)->Next = NULL; \
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}
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#define UnlinkDouble(_p) \
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{ \
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*((_p)->Prev) = (_p)->Next; \
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if ((_p)->Next != NULL) \
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(_p)->Next->Prev = (_p)->Prev; \
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}
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#endif // _FILE_
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