114 lines
4 KiB
C
114 lines
4 KiB
C
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/**********************************************************************/
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/** Microsoft Windows NT **/
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/** Copyright(c) Microsoft Corp., 1993 **/
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/**********************************************************************/
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/*
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dhcpdata.h
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Extensible object definitions for the DHCP Server's counter
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objects & counters.
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FILE HISTORY:
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Pradeepb 20-July-1993 Created.
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RameshV 05-Aug-1998 Adapted for DHCP
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*/
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#ifndef _DHCPDATA_H_
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#define _DHCPDATA_H_
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//
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// This structure is used to ensure the first counter is properly
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// aligned. Unfortunately, since PERF_COUNTER_BLOCK consists
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// of just a single DWORD, any LARGE_INTEGERs that immediately
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// follow will not be aligned properly.
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//
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// This structure requires "natural" packing & alignment (probably
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// quad-word, especially on Alpha). Ergo, keep it out of the
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// #pragma pack(4) scope below.
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//
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typedef struct _DHCPDATA_COUNTER_BLOCK
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{
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PERF_COUNTER_BLOCK PerfCounterBlock;
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LARGE_INTEGER DummyEntryForAlignmentPurposesOnly;
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} DHCPDATA_COUNTER_BLOCK;
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//
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// The routines that load these structures assume that all fields
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// are DWORD packed & aligned.
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//
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#pragma pack(4)
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//
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// Offsets within a PERF_COUNTER_BLOCK.
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//
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#define DHCPDATA_PACKETS_RECEIVED_OFFSET (0*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_PACKETS_DUPLICATE_OFFSET (1*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_PACKETS_EXPIRED_OFFSET (2*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_MILLISECONDS_PER_PACKET_OFFSET (3*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_PACKETS_IN_ACTIVE_QUEUE_OFFSET (4*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_PACKETS_IN_PING_QUEUE_OFFSET (5*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_DISCOVERS_OFFSET (6*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_OFFERS_OFFSET (7*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_REQUESTS_OFFSET (8*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_INFORMS_OFFSET (9*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_ACKS_OFFSET (10*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_NACKS_OFFSET (11*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_DECLINES_OFFSET (12*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_RELEASES_OFFSET (13*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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#define DHCPDATA_SIZE_OF_PERFORMANCE_DATA (14*sizeof(DWORD) + sizeof(DHCPDATA_COUNTER_BLOCK))
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//
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// The counter structure returned.
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//
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typedef struct _DHCPDATA_DATA_DEFINITION
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{
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PERF_OBJECT_TYPE ObjectType;
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PERF_COUNTER_DEFINITION PacketsReceived;
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PERF_COUNTER_DEFINITION PacketsDuplicate;
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PERF_COUNTER_DEFINITION PacketsExpired;
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PERF_COUNTER_DEFINITION MilliSecondsPerPacket;
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PERF_COUNTER_DEFINITION ActiveQueuePackets;
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PERF_COUNTER_DEFINITION PingQueuePackets;
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PERF_COUNTER_DEFINITION Discovers;
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PERF_COUNTER_DEFINITION Offers;
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PERF_COUNTER_DEFINITION Requests;
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PERF_COUNTER_DEFINITION Informs;
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PERF_COUNTER_DEFINITION Acks;
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PERF_COUNTER_DEFINITION Nacks;
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PERF_COUNTER_DEFINITION Declines;
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PERF_COUNTER_DEFINITION Releases;
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} DHCPDATA_DATA_DEFINITION;
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extern DHCPDATA_DATA_DEFINITION DhcpDataDataDefinition;
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#define NUMBER_OF_DHCPDATA_COUNTERS ((sizeof(DHCPDATA_DATA_DEFINITION) - \
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sizeof(PERF_OBJECT_TYPE)) / \
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sizeof(PERF_COUNTER_DEFINITION))
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#define DHCPDATA_PERFORMANCE_KEY \
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TEXT("System\\CurrentControlSet\\Services\\DHCPServer\\Performance")
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//
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// Restore default packing & alignment.
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//
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#pragma pack()
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#endif // _DHCPDATA_H_
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