93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
/*++
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Copyright (c) 2001 Microsoft Corporation
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Module Name:
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FixServiceStartupCircularDependency.cpp
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Abstract:
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Hooks the call to CreateServiceA and changes the start parameter for
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only the service passed in COMMAND_LINE from SERVICE_AUTO_START to
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SERVICE_SYSTEM_START. This eliminates a circular dependency during
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boot up which results in XP taking 15 to 20 minutes to boot.
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Notes:
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This is a general purpose shim. Pass the service name in the command
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line. It tests if the startup type for that service is SERVICE_AUTO_START
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and if so changes it to SERVICE_SYSTEM_START.
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History:
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02/19/2001 a-brienw Created
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02/20/2001 a-brienw Changed it to a general purpose shim using the command
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line to pass in the service name.
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(FixServiceStartupCircularDependency)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(CreateServiceA)
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APIHOOK_ENUM_END
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/*++
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Hook CreateServiceA to change the start parameter for the required service.
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--*/
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SC_HANDLE
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APIHook_CreateServiceA(
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SC_HANDLE hSCManager, // handle to SCM database
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LPCSTR lpServiceName, // name of service to start
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LPCSTR lpDisplayName, // display name
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DWORD dwDesiredAccess, // type of access to service
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DWORD dwServiceType, // type of service
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DWORD dwStartType, // when to start service
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DWORD dwErrorControl, // severity of service failure
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LPCSTR lpBinaryPathName, // name of binary file
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LPCSTR lpLoadOrderGroup, // name of load ordering group
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LPDWORD lpdwTagId, // tag identifier
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LPCSTR lpDependencies, // array of dependency names
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LPCSTR lpServiceStartName, // account name
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LPCSTR lpPassword // account password
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)
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{
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/*
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Only change it if it is currently SERVICE_AUTO_START. Do not change
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the IF statement to read != as there are other startup types which do
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not result in a circular dependency.
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*/
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if (dwStartType == SERVICE_AUTO_START &&
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!_tcsicmp(lpServiceName,COMMAND_LINE))
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{
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LOGN( eDbgLevelInfo,
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"[CreateServiceA] Fixed startup type: %s.", lpServiceName);
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dwStartType = SERVICE_SYSTEM_START;
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}
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return ORIGINAL_API(CreateServiceA)(hSCManager, lpServiceName,
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lpDisplayName, dwDesiredAccess, dwServiceType, dwStartType,
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dwErrorControl, lpBinaryPathName, lpLoadOrderGroup, lpdwTagId,
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lpDependencies, lpServiceStartName, lpPassword);
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}
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/*++
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Register hooked functions
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--*/
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HOOK_BEGIN
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APIHOOK_ENTRY(ADVAPI32.DLL, CreateServiceA)
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HOOK_END
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IMPLEMENT_SHIM_END
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