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[LDR][APPHELP] Add a shim that disables manifest compatibility version parsing

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This commit is contained in:
Mark Jansen 2019-08-19 02:33:13 +02:00
parent e12abf63c5
commit 343442cc3f
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GPG key ID: B39240EE84BEAE8B
4 changed files with 38 additions and 25 deletions
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33
dll/ntdll/ldr/ldrinit.c
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@ -1541,9 +1541,17 @@ 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 };
static const struct
{
const GUID* Guid;
const DWORD Version;
} KnownCompatGuids[] = {
{ &COMPAT_GUID_WIN10, _WIN32_WINNT_WIN10 },
{ &COMPAT_GUID_WIN81, _WIN32_WINNT_WINBLUE },
{ &COMPAT_GUID_WIN8, _WIN32_WINNT_WIN8 },
{ &COMPAT_GUID_WIN7, _WIN32_WINNT_WIN7 },
{ &COMPAT_GUID_VISTA, _WIN32_WINNT_VISTA },
};
ULONG Buffer[(sizeof(COMPATIBILITY_CONTEXT_ELEMENT) * 10 + sizeof(ACTIVATION_CONTEXT_COMPATIBILITY_INFORMATION)) / sizeof(ULONG)];
ACTIVATION_CONTEXT_COMPATIBILITY_INFORMATION* ContextCompatInfo;
@ -1552,8 +1560,6 @@ LdrpInitializeProcessCompat(PVOID* pOldShimData)
DWORD n, cur;
ReactOS_ShimData* pShimData = *pOldShimData;
C_ASSERT(RTL_NUMBER_OF(GuidOrder) == RTL_NUMBER_OF(GuidVersions));
if (pShimData)
{
if (pShimData->dwMagic != REACTOS_SHIMDATA_MAGIC ||
@ -1564,7 +1570,14 @@ LdrpInitializeProcessCompat(PVOID* pOldShimData)
}
if (pShimData->dwRosProcessCompatVersion)
{
DPRINT1("LdrpInitializeProcessCompat: ProcessCompatVersion already set to 0x%x\n", pShimData->dwRosProcessCompatVersion);
if (pShimData->dwRosProcessCompatVersion == REACTOS_COMPATVERSION_IGNOREMANIFEST)
{
DPRINT1("LdrpInitializeProcessCompat: ProcessCompatVersion set to ignore manifest\n");
}
else
{
DPRINT1("LdrpInitializeProcessCompat: ProcessCompatVersion already set to 0x%x\n", pShimData->dwRosProcessCompatVersion);
}
return;
}
}
@ -1590,12 +1603,12 @@ LdrpInitializeProcessCompat(PVOID* pOldShimData)
return;
/* Search for known GUID's, starting from newest to oldest. */
for (cur = 0; cur < RTL_NUMBER_OF(GuidOrder); ++cur)
for (cur = 0; cur < RTL_NUMBER_OF(KnownCompatGuids); ++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))
RtlCompareMemory(&ContextCompatInfo->Elements[n].Id, KnownCompatGuids[cur].Guid, sizeof(GUID)) == sizeof(GUID))
{
/* If this process did not need shim data before, allocate and store it */
if (pShimData == NULL)
@ -1619,8 +1632,8 @@ LdrpInitializeProcessCompat(PVOID* pOldShimData)
}
/* Store the highest found version, and bail out. */
pShimData->dwRosProcessCompatVersion = GuidVersions[cur];
DPRINT1("LdrpInitializeProcessCompat: Found guid for winver 0x%x\n", GuidVersions[cur]);
pShimData->dwRosProcessCompatVersion = KnownCompatGuids[cur].Version;
DPRINT1("LdrpInitializeProcessCompat: Found guid for winver 0x%x\n", KnownCompatGuids[cur].Version);
return;
}
}