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202 lines
4.1 KiB
202 lines
4.1 KiB
/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name:
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testdll.c
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Abstract:
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Sample SNMP subagent.
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--*/
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#include "precomp.h"
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#pragma hdrstop
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#if defined( MIB_DEBUG )
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DWORD g_dwTraceId = INVALID_TRACEID;
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#endif
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MIB_SERVER_HANDLE g_hMIBServer = ( MIB_SERVER_HANDLE) NULL;
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//
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// Critical Section to control access to variable g_hMIBServer
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//
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CRITICAL_SECTION g_CS;
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// Extension Agent DLLs need access to elapsed time agent has been active.
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// This is implemented by initializing the Extension Agent with a time zero
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// reference, and allowing the agent to compute elapsed time by subtracting
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// the time zero reference from the current system time.
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DWORD g_uptimeReference = 0;
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//
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// Handle to Subagent Framework
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//
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SnmpTfxHandle g_tfxHandle;
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///////////////////////////////////////////////////////////////////////////////
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// //
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// Subagent entry points //
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// //
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///////////////////////////////////////////////////////////////////////////////
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BOOL
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SnmpExtensionInit(
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IN DWORD uptimeReference,
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OUT HANDLE * lpPollForTrapEvent,
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OUT AsnObjectIdentifier * lpFirstSupportedView
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)
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{
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DWORD dwRes = (DWORD) -1;
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#if defined( MIB_DEBUG )
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//
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// tracing for DEBUG
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//
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g_dwTraceId = TraceRegister( "BOOTP Subagent" );
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#endif
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// save uptime reference
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g_uptimeReference = uptimeReference;
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// obtain handle to subagent framework
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g_tfxHandle = SnmpTfxOpen(1,&v_msipbootp);
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// validate handle
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if (g_tfxHandle == NULL) {
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return FALSE;
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}
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// pass back first view identifier to master
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*lpFirstSupportedView = v_msipbootp.viewOid;
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// traps not supported yet
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*lpPollForTrapEvent = NULL;
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//
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// Verify router service is running
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//
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if ( !MprAdminIsServiceRunning( NULL ) )
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{
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return TRUE;
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}
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//
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// Connect to router
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//
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dwRes = MprAdminMIBServerConnect(
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NULL,
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&g_hMIBServer
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);
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if ( dwRes != NO_ERROR )
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{
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return FALSE;
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}
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return TRUE;
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}
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BOOL
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SnmpExtensionQuery(
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IN BYTE requestType,
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IN OUT RFC1157VarBindList * variableBindings,
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OUT AsnInteger * errorStatus,
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OUT AsnInteger * errorIndex
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)
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{
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// forward to framework
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return SnmpTfxQuery(
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g_tfxHandle,
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requestType,
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variableBindings,
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errorStatus,
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errorIndex
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);
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}
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BOOL
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SnmpExtensionTrap(
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OUT AsnObjectIdentifier *enterprise,
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OUT AsnInteger *genericTrap,
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OUT AsnInteger *specificTrap,
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OUT AsnTimeticks *timeStamp,
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OUT RFC1157VarBindList *variableBindings
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)
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{
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// no traps
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return FALSE;
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}
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BOOL WINAPI
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DllMain(
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HINSTANCE hInstDLL,
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DWORD fdwReason,
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LPVOID pReserved
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)
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{
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switch ( fdwReason )
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{
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case DLL_PROCESS_ATTACH :
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{
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DisableThreadLibraryCalls( hInstDLL );
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InitializeCriticalSection( &g_CS );
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break;
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}
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case DLL_PROCESS_DETACH :
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{
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//
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// Disconnect from router
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//
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if ( g_hMIBServer )
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{
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MprAdminMIBServerDisconnect( g_hMIBServer );
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}
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DeleteCriticalSection( &g_CS );
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#if defined( MIB_DEBUG )
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if ( g_dwTraceId != INVALID_TRACEID )
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{
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TraceDeregister( g_dwTraceId );
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}
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#endif
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break;
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}
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default :
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{
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break;
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}
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}
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return TRUE;
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}
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