184 lines
4.8 KiB
C
184 lines
4.8 KiB
C
/*++ BUILD Version: 001 // Increment this if a change has global effects
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Copyright (c) 1995 Microsoft Corporation
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Module Name :
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mib.h
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Abstract:
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Generic Macros and Functions for SNMP Extension Agent for
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gathering statistics information for Internet Services on NT.
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Author:
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Murali R. Krishnan ( MuraliK ) 22-Feb-1995
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Environment:
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User Mode -- Win32
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Project:
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Gopher Server SNMP MIB DLL
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Revision History:
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--*/
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# ifndef _MIB_H_
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# define _MIB_H_
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/************************************************************
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* Include Headers
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************************************************************/
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#include <windows.h>
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#include <snmp.h>
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#include <lm.h>
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#include <iisinfo.h>
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/************************************************************
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* Symbolic Constants
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************************************************************/
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//
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// MIB function actions.
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//
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#define MIB_GET ( ASN_RFC1157_GETREQUEST)
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#define MIB_SET ( ASN_RFC1157_SETREQUEST)
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#define MIB_GETNEXT ( ASN_RFC1157_GETNEXTREQUEST)
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#define MIB_GETFIRST ( ASN_PRIVATE | ASN_CONSTRUCTOR | 0x0 )
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//
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// MIB Variable access privileges.
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//
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#define MIB_ACCESS_READ 0
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#define MIB_ACCESS_WRITE 1
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#define MIB_ACCESS_READWRITE 2
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#define MIB_NOACCESS 3
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/************************************************************
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* Type Definitions
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************************************************************/
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typedef UINT ( * LPMIBFUNC)(
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RFC1157VarBind * pRfcVarBind,
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UINT Action,
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struct _MIB_ENTRY * pMibeCurrent,
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struct _MIB_ENTRIES* pMibEntries,
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LPVOID pStatistics
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);
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typedef struct _MIB_ENTRY {
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AsnObjectIdentifier asnOid; // OID for mib variable
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LONG lFieldOffset; // filed offset
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UINT uiAccess; // type of accesss( R, W, R/W, None)
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LPMIBFUNC pMibFunc; // ptr to function managing this var.
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BYTE bType; // Type( integer, counter, gauage).
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} MIB_ENTRY, FAR * LPMIB_ENTRY;
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typedef struct _MIB_ENTRIES {
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AsnObjectIdentifier * pOidPrefix; // Oid with prefix for MIB ENTRIES
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int cMibEntries; // count of MIB_ENTRIES in the array
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LPMIB_ENTRY prgMibEntry; // ptr to array of MIB_ENTRIES
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} MIB_ENTRIES, FAR * LPMIB_ENTRIES;
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/************************************************************
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* Macros convenient for defining above MIB_ENTRY objects
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************************************************************/
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//
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// GET_OID_LENGTH( oid) gets the length of the oid.
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//
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# define GET_OID_LENGTH( oid) ((oid).idLength)
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//
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// Macro to determine number of sub-oid's in an array of UINTs.
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//
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#define OID_SIZEOF( uiArray ) ( sizeof( uiArray) / sizeof(UINT) )
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//
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// OID_FROM_UINT_ARRAY(): Macro to define OID from an Array of UINTs
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//
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# define OID_FROM_UINT_ARRAY( uiArray) { OID_SIZEOF( uiArray), uiArray }
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//
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// Macros for creating MIB Entries ( as specified in struct _MIB_ENTRY above)
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// MIB_ENTRY_HEADER: creates a generic MIB_ENTRY for a MIB group header.
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// MIB_ENTRY_ITEM: creates a generic MIB_ENTRY for a MIB variable.
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// MIB_COUNTER: creates a counter type MIB_ENTRY
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// MIB_INTEGER: creates an integer type MIB_ENTRY
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//
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# define MIB_ENTRY_HEADER( oid) \
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{ oid, \
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-1, \
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MIB_NOACCESS, \
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NULL, \
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ASN_RFC1155_OPAQUE, \
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}
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# define MIB_ENTRY_ITEM( oid, offset, access, type, func) \
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{ oid, \
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offset, \
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access, \
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( func), \
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( type), \
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}
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# define MIB_COUNTER( oid, field, func) \
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MIB_ENTRY_ITEM( oid, field, MIB_ACCESS_READ, ASN_RFC1155_COUNTER, func)
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# define MIB_INTEGER( oid, field, func) \
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MIB_ENTRY_ITEM( oid, field, MIB_ACCESS_READ, ASN_INTEGER, func)
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/************************************************************
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* Function Prototypes
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************************************************************/
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UINT
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ResolveVarBinding(
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IN OUT RFC1157VarBind * pRfcVarBinding,
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IN BYTE pduAction,
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IN LPVOID pStatistics,
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IN LPMIB_ENTRIES pMibEntries
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);
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UINT
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MibStatisticsWorker(
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IN OUT RFC1157VarBind * pRfcVarBinding,
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IN UINT pduAction,
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IN struct _MIB_ENTRY * pMibeCurrent,
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IN struct _MIB_ENTRIES * pMibEntries,
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IN LPVOID pStatistics
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);
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# endif // _MIB_H_
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/************************ End of File ***********************/
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