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199 lines
5.2 KiB
199 lines
5.2 KiB
/*++
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Copyright (c) 1992-1997 Microsoft Corporation
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Module Name:
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snmpapi.c
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Abstract:
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Contains entry point for SNMPAPI.DLL.
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Environment:
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User Mode - Win32
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Revision History:
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--*/
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Include files //
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// //
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///////////////////////////////////////////////////////////////////////////////
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#include <nt.h>
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#include <windef.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#include <snmp.h>
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#include <snmputil.h>
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#include "ntfuncs.h"
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Global Variables //
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// //
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///////////////////////////////////////////////////////////////////////////////
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DWORD g_dwPlatformId = 0;
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AsnObjectIdentifier * g_pEnterpriseOid = NULL;
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Private Variables //
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// //
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///////////////////////////////////////////////////////////////////////////////
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static UINT idsWindowsNTWorkstation[] = {1,3,6,1,4,1,311,1,1,3,1,1};
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static UINT idsWindowsNTServer[] = {1,3,6,1,4,1,311,1,1,3,1,2};
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static UINT idsWindowsNTDC[] = {1,3,6,1,4,1,311,1,1,3,1,3};
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static UINT idsWindows[] = {1,3,6,1,4,1,311,1,1,3,2};
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static AsnObjectIdentifier oidWindowsNTWorkstation = {
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sizeof(idsWindowsNTWorkstation)/sizeof(UINT),
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idsWindowsNTWorkstation
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};
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static AsnObjectIdentifier oidWindowsNTServer = {
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sizeof(idsWindowsNTServer)/sizeof(UINT),
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idsWindowsNTServer
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};
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static AsnObjectIdentifier oidWindowsNTDC = {
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sizeof(idsWindowsNTDC)/sizeof(UINT),
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idsWindowsNTDC
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};
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static AsnObjectIdentifier oidWindows = {
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sizeof(idsWindows)/sizeof(UINT),
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idsWindows
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};
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Private Procedures //
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// //
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///////////////////////////////////////////////////////////////////////////////
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BOOL
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InitializeEnterpriseOID(
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)
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/*++
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Routine Description:
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Determines the default enterprise object identifier.
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Arguments:
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None.
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Return Values:
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Returns true if successful.
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--*/
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{
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NT_PRODUCT_TYPE NtProductType;
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// default to generic oid
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g_pEnterpriseOid = &oidWindows;
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// check to see if the platform is winnt
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if (g_dwPlatformId == VER_PLATFORM_WIN32_NT) {
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// assume this is just a workstation
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g_pEnterpriseOid = &oidWindowsNTWorkstation;
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// let the system determine product type
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RtlGetNtProductType(&NtProductType);
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// point to the correct enterprise oid
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if (NtProductType == NtProductServer) {
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// this is a stand-alone server
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g_pEnterpriseOid = &oidWindowsNTServer;
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} else if (NtProductType == NtProductLanManNt) {
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// this is a PDC or a BDC
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g_pEnterpriseOid = &oidWindowsNTDC;
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}
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}
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SNMPDBG((
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SNMP_LOG_TRACE,
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"SNMP: INIT: enterprise is %s.\n",
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SnmpUtilOidToA(g_pEnterpriseOid)
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));
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return TRUE;
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}
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Public Procedures //
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// //
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///////////////////////////////////////////////////////////////////////////////
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BOOLEAN
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InitializeDLL(
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PVOID DllHandle,
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ULONG Reason,
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LPVOID lpReserved
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)
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/*++
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Routine Description:
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Dll entry point.
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Arguments:
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Same as DllMain.
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Return Values:
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Returns true if successful.
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--*/
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{
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// check if new process attaching
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if (Reason == DLL_PROCESS_ATTACH) {
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OSVERSIONINFO osInfo;
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// initialize os info structure
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osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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// gather os info
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GetVersionEx(&osInfo);
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// save platform id for later use
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g_dwPlatformId = osInfo.dwPlatformId;
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// initialize enterprise
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InitializeEnterpriseOID();
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// turn off thread attach messages
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DisableThreadLibraryCalls(DllHandle);
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}
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return TRUE;
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}
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