107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 2000.
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//
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// File: W S D P S V C . C P P
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//
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// Contents: Start/stop Winsock Direct Path Service.
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//
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// Notes: The service is actually implemented in MS TCP Winsock provider
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//
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// Author: VadimE 24 Jan 2000
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//
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//----------------------------------------------------------------------------
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#include "pch.h"
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#pragma hdrstop
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#include "wsdpsvc.h"
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#define MSTCP_PROVIDER_DLL TEXT("mswsock.dll")
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#define START_WSDP_FUNCTION_NAME "StartWsdpService"
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#define STOP_WSDP_FUNCTION_NAME "StopWsdpService"
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// MS TCP Winsock provider module handle
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HINSTANCE ghMsTcpDll;
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// Service start function pointer
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typedef INT (WINAPI *PFN_START_WSDP_SVC) (VOID);
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PFN_START_WSDP_SVC gpfnStartWsdpSvc;
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// Service stop function pointer
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typedef VOID (WINAPI *PFN_STOP_WSDP_SVC) (VOID);
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PFN_STOP_WSDP_SVC gpfnStopWsdpSvc;
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//+---------------------------------------------------------------------------
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// StartWsdpService - start WSDP service if running on DTC
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//
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//
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VOID
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StartWsdpService (
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VOID
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)
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{
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NTSTATUS status;
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NT_PRODUCT_TYPE product;
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//
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// First check if we are running Server build
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//
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status = RtlGetNtProductType (&product);
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if (!NT_SUCCESS (status) ||
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(product == NtProductWinNt)) {
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return;
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}
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//
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// Load MS TCP provider and get WSDP service entry points
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//
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ghMsTcpDll = LoadLibrary (MSTCP_PROVIDER_DLL);
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if (ghMsTcpDll!=NULL) {
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gpfnStartWsdpSvc = (PFN_START_WSDP_SVC) GetProcAddress (
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ghMsTcpDll,
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START_WSDP_FUNCTION_NAME);
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gpfnStopWsdpSvc = (PFN_STOP_WSDP_SVC) GetProcAddress (
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ghMsTcpDll,
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STOP_WSDP_FUNCTION_NAME);
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if (gpfnStartWsdpSvc != NULL && gpfnStopWsdpSvc != NULL) {
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//
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// Launch the service and return if succeded
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//
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INT err = (*gpfnStartWsdpSvc)();
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if (err==0) {
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return;
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}
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}
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//
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// Cleanup if anything fails
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//
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FreeLibrary (ghMsTcpDll);
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ghMsTcpDll = NULL;
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}
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}
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//+---------------------------------------------------------------------------
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// StopWsdpService - stop WSDP service if it was started
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//
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//
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VOID
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StopWsdpService (
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VOID
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)
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{
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if (ghMsTcpDll!=NULL) {
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//
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// Tell the service to stop and unload the provider
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//
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(*gpfnStopWsdpSvc)();
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FreeLibrary (ghMsTcpDll);
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ghMsTcpDll = NULL;
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}
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}
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