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[NTDLL] Check the process manifest at startup for a compatibility section.

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This commit is contained in:
Mark Jansen 2018-01-13 21:32:48 +01:00
parent e195199a51
commit d49004352f
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5 changed files with 149 additions and 5 deletions
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86
dll/ntdll/ldr/ldrinit.c
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@ -10,6 +10,8 @@
/* INCLUDES *****************************************************************/
#include <ntdll.h>
#include <compat_undoc.h>
#include <compatguid_undoc.h>
#define NDEBUG
#include <debug.h>
@ -1455,6 +1457,83 @@ LdrpValidateImageForMp(IN PLDR_DATA_TABLE_ENTRY LdrDataTableEntry)
UNIMPLEMENTED;
}
VOID
NTAPI
LdrpInitializeProcessCompat(PVOID* pOldShimData)
{
static const GUID* GuidOrder[] = { &COMPAT_GUID_WIN10, &COMPAT_GUID_WIN81, &COMPAT_GUID_WIN8,
&COMPAT_GUID_WIN7, &COMPAT_GUID_VISTA };
static const DWORD GuidVersions[] = { WINVER_WIN10, WINVER_WIN81, WINVER_WIN8, WINVER_WIN7, WINVER_VISTA };
ULONG Buffer[(sizeof(COMPATIBILITY_CONTEXT_ELEMENT) * 10 + sizeof(ACTIVATION_CONTEXT_COMPATIBILITY_INFORMATION)) / sizeof(ULONG)];
ACTIVATION_CONTEXT_COMPATIBILITY_INFORMATION* ContextCompatInfo;
SIZE_T SizeRequired;
NTSTATUS Status;
DWORD n, cur;
C_ASSERT(RTL_NUMBER_OF(GuidOrder) == RTL_NUMBER_OF(GuidVersions));
SizeRequired = sizeof(Buffer);
Status = RtlQueryInformationActivationContext(RTL_QUERY_ACTIVATION_CONTEXT_FLAG_NO_ADDREF,
NULL,
NULL,
CompatibilityInformationInActivationContext,
Buffer,
sizeof(Buffer),
&SizeRequired);
if (!NT_SUCCESS(Status))
{
DPRINT1("LdrpInitializeProcessCompat: Unable to query process actctx with status %x\n", Status);
return;
}
ContextCompatInfo = (ACTIVATION_CONTEXT_COMPATIBILITY_INFORMATION*)Buffer;
/* No Compatibility elements present, bail out */
if (ContextCompatInfo->ElementCount == 0)
return;
/* Search for known GUID's, starting from newest to oldest. */
for (cur = 0; cur < RTL_NUMBER_OF(GuidOrder); ++cur)
{
for (n = 0; n < ContextCompatInfo->ElementCount; ++n)
{
if (ContextCompatInfo->Elements[n].Type == ACTCX_COMPATIBILITY_ELEMENT_TYPE_OS &&
RtlCompareMemory(&ContextCompatInfo->Elements[n].Id, GuidOrder[cur], sizeof(GUID)) == sizeof(GUID))
{
ReactOS_ShimData* pShimData = *pOldShimData;
/* If this process did not need shim data before, allocate and store it */
if (pShimData == NULL)
{
PPEB Peb = NtCurrentPeb();
ASSERT(Peb->pShimData == NULL);
pShimData = RtlAllocateHeap(Peb->ProcessHeap, HEAP_ZERO_MEMORY, sizeof(*pShimData));
if (!pShimData)
{
DPRINT1("LdrpInitializeProcessCompat: Unable to allocated %u bytes\n", sizeof(*pShimData));
return;
}
pShimData->dwSize = sizeof(*pShimData);
pShimData->dwMagic = REACTOS_SHIMDATA_MAGIC;
Peb->pShimData = pShimData;
*pOldShimData = pShimData;
}
/* Store the highest found version, and bail out. */
pShimData->dwRosProcessCompatVersion = GuidVersions[cur];
DPRINT1("LdrpInitializeProcessCompat: Found guid for winver 0x%x\n", GuidVersions[cur]);
return;
}
}
}
}
NTSTATUS
NTAPI
LdrpInitializeProcess(IN PCONTEXT Context,
@ -1542,8 +1621,8 @@ LdrpInitializeProcess(IN PCONTEXT Context,
/* Save the old Shim Data */
OldShimData = Peb->pShimData;
/* Clear it */
Peb->pShimData = NULL;
/* ReactOS specific: do not clear it. (Windows starts doing the same in later versions) */
//Peb->pShimData = NULL;
/* Save the number of processors and CS Timeout */
LdrpNumberOfProcessors = Peb->NumberOfProcessors;
@ -1934,6 +2013,9 @@ LdrpInitializeProcess(IN PCONTEXT Context,
/* Initialize Wine's active context implementation for the current process */
actctx_init();
/* ReactOS specific */
LdrpInitializeProcessCompat(&OldShimData);
/* Set the current directory */
Status = RtlSetCurrentDirectory_U(&CurrentDirectory);
if (!NT_SUCCESS(Status))