161 lines
3.9 KiB
C++
161 lines
3.9 KiB
C++
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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InstallShield6.cpp
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Abstract:
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- InstallShield6 is using IKernel.exe. The problem is IKernel.exe is an out-of-process
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OLE server that is spawned by svchost. IKernel.exe is located in InstallShield common
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folder and it's known as InstallShield engine.
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- In order to enable us to do matching against app that is using IKernel, we catch
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first call to CreateFileA that has "data1.hdr" filename on the path.
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We should be able to use matching info available in the path of this data1.hdr.
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(which is located in temp folder in current user setting).
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Then we call apphelp!ApphelpCheckExe to verify whether there is a match.
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If there is a match, it will call shimeng!SE_DynamicShim to dynamically load additional shim
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available for this application.
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History:
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04/11/2001 andyseti Created
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06/27/2001 andyseti Added code to prevent multiple Dynamic Shimming
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--*/
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#include "precomp.h"
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typedef BOOL (WINAPI *_pfn_CheckExe)(LPCWSTR, BOOL, BOOL, BOOL);
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IMPLEMENT_SHIM_BEGIN(InstallShield6)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(CreateFileA)
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APIHOOK_ENUM_END
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HANDLE
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APIHOOK(CreateFileA)(
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LPSTR lpFileName,
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DWORD dwDesiredAccess,
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DWORD dwShareMode,
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LPSECURITY_ATTRIBUTES lpSecurityAttributes,
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DWORD dwCreationDisposition,
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DWORD dwFlagsAndAttributes,
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HANDLE hTemplateFile
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)
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{
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static _pfn_CheckExe pfnCheckExe = NULL;
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static const char Apphelp_ModuleName[] = "Apphelp.dll";
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static const char CheckExeProcedureName[] = "ApphelpCheckExe";
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HMODULE hmodApphelp = 0;
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if (pfnCheckExe != NULL)
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{
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goto Done;
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}
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CSTRING_TRY
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{
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CString csFileName(lpFileName);
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csFileName.MakeLower();
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if (-1 == csFileName.Find(L"data1.hdr"))
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{
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// not the one that we are looking for.
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goto Done;
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}
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DPFN(
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eDbgLevelInfo,
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"[CreateFileA] Accessing %S", csFileName.Get());
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// load apphelp & shimengine modules
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DPFN(
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eDbgLevelInfo,
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"[CreateFileA] Loading Apphelp");
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hmodApphelp = LoadLibraryA(Apphelp_ModuleName);
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if (0 == hmodApphelp)
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{
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DPFN(
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eDbgLevelError,
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"[CreateFileA] Failed to get apphelp module handle");
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goto Done;
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}
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// Get procedure addresses
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DPFN(
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eDbgLevelInfo,
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"[CreateFileA] Getting ApphelpCheckExe proc address");
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pfnCheckExe = (_pfn_CheckExe) GetProcAddress(hmodApphelp, CheckExeProcedureName);
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if (NULL == pfnCheckExe)
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{
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DPFN(
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eDbgLevelError,
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"[CreateFileA] Failed to get %s procedure from %s module",
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CheckExeProcedureName,Apphelp_ModuleName);
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goto Done;
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}
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DPFN(
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eDbgLevelInfo,
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"[CreateFileA] Calling CheckExe");
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if (FALSE == (*pfnCheckExe)(
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(WCHAR *)csFileName.Get(),
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FALSE,
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TRUE,
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FALSE
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))
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{
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DPFN(
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eDbgLevelError,
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"[CreateFileA] There is no match for %S",
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csFileName.Get());
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goto Done;
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}
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}
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CSTRING_CATCH
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{
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// Do nothing
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}
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Done:
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HANDLE hRet = ORIGINAL_API(CreateFileA)(
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lpFileName,
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dwDesiredAccess,
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dwShareMode,
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lpSecurityAttributes,
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dwCreationDisposition,
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dwFlagsAndAttributes,
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hTemplateFile);
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return hRet;
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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(KERNEL32.DLL, CreateFileA)
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HOOK_END
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IMPLEMENT_SHIM_END
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