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[APPHELP] Stop shimeng being initialized multiple times

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This is a hack, but is required when MSI is loaded in a process that is already shimmed.
It should be removed when the MSI shim integration is fixed.
CORE-18532
CORE-13283
This commit is contained in:
Mark Jansen 2022-10-20 19:17:33 +02:00
parent 21e68b0dba
commit d284c81494
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GPG Key ID: B39240EE84BEAE8B
1 changed files with 8 additions and 0 deletions
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8
dll/appcompat/apphelp/shimeng.c
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@ -32,6 +32,7 @@ static UNICODE_STRING g_LoadingShimDll;
ULONG g_ShimEngDebugLevel = 0xffffffff;
BOOL g_bComPlusImage = FALSE;
BOOL g_bShimDuringInit = FALSE;
BOOL g_bShimEngInitialized = FALSE;
BOOL g_bInternalHooksUsed = FALSE;
static ARRAY g_pShimInfo; /* PSHIMMODULE */
static ARRAY g_pHookArray; /* HOOKMODULEINFO */
@ -1358,6 +1359,7 @@ VOID SeiInit(LPCWSTR ProcessImage, HSDB hsdb, SDBQUERYRESULT* pQuery, BOOLEAN Pr
/* Remove the 'LDRP_ENTRY_PROCESSED' flag from entries we modified, so that the loader can continue to process them */
SeiResetEntryProcessed(Peb);
}
g_bShimEngInitialized = TRUE;
}
@ -1484,6 +1486,12 @@ LdrInitShimEngineDynamic(IN PVOID BaseAddress);
BOOL WINAPI SE_DynamicShim(LPCWSTR ProcessImage, HSDB hsdb, PVOID pQueryResult, LPCSTR Module, LPDWORD lpdwDynamicToken)
{
if (g_bShimEngInitialized)
{
SHIMENG_MSG("ReactOS HACK(CORE-13283): ShimEng already initialized!\n");
return TRUE;
}
g_bShimDuringInit = TRUE;
SeiInit(ProcessImage, hsdb, pQueryResult, FALSE);
g_bShimDuringInit = FALSE;