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[NTOS]: Implement and call MiUseLargeDriverPage.
[NTOS]: MmCheckSystemImage: Check for 32-bit/64-bit image/OS mismatch. [NTOS]: MmCheckSystemImage: Return invalid checksum if couldn't get the NT header from the image. [NTOS]: MmCheckSystemImage: Map images as SEC_IMAGE instead of SEC_COMMIT, and simply read the size off that way. svn path=/trunk/; revision=46988
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@ -1590,6 +1590,63 @@ MiInitializeLoadedModuleList(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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return TRUE;
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return TRUE;
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}
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}
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LOGICAL
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NTAPI
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MiUseLargeDriverPage(IN ULONG NumberOfPtes,
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IN OUT PVOID *ImageBaseAddress,
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IN PUNICODE_STRING BaseImageName,
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IN BOOLEAN BootDriver)
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{
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PLIST_ENTRY NextEntry;
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BOOLEAN DriverFound = FALSE;
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PMI_LARGE_PAGE_DRIVER_ENTRY LargePageDriverEntry;
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ASSERT(KeGetCurrentIrql () <= APC_LEVEL);
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ASSERT(*ImageBaseAddress >= MmSystemRangeStart);
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#ifdef _X86_
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if (!(KeFeatureBits & KF_LARGE_PAGE)) return FALSE;
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if (!(__readcr4() & CR4_PSE)) return FALSE;
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#endif
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/* Make sure there's enough system PTEs for a large page driver */
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if (MmTotalFreeSystemPtes[SystemPteSpace] < (16 * (PDE_MAPPED_VA >> PAGE_SHIFT)))
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{
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return FALSE;
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}
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/* This happens if the registry key had a "*" (wildcard) in it */
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if (MiLargePageAllDrivers == 0)
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{
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/* It didn't, so scan the list */
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NextEntry = MiLargePageDriverList.Flink;
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while (NextEntry != &MiLargePageDriverList)
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{
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/* Check if the driver name matches */
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LargePageDriverEntry = CONTAINING_RECORD(NextEntry,
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MI_LARGE_PAGE_DRIVER_ENTRY,
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Links);
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if (RtlEqualUnicodeString(BaseImageName,
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&LargePageDriverEntry->BaseName,
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TRUE))
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{
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/* Enable large pages for this driver */
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DriverFound = TRUE;
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break;
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}
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/* Keep trying */
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NextEntry = NextEntry->Flink;
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}
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/* If we didn't find the driver, it doesn't need large pages */
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if (DriverFound == FALSE) return FALSE;
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}
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/* Nothing to do yet */
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DPRINT1("Large pages not supported!\n");
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return FALSE;
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}
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ULONG
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ULONG
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NTAPI
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NTAPI
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MiComputeDriverProtection(IN BOOLEAN SessionSpace,
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MiComputeDriverProtection(IN BOOLEAN SessionSpace,
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@ -1994,15 +2051,24 @@ MmCheckSystemImage(IN HANDLE ImageHandle,
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IO_STATUS_BLOCK IoStatusBlock;
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IO_STATUS_BLOCK IoStatusBlock;
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FILE_STANDARD_INFORMATION FileStandardInfo;
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FILE_STANDARD_INFORMATION FileStandardInfo;
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KAPC_STATE ApcState;
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KAPC_STATE ApcState;
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PIMAGE_NT_HEADERS NtHeaders;
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OBJECT_ATTRIBUTES ObjectAttributes;
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PAGED_CODE();
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PAGED_CODE();
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/* Setup the object attributes */
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InitializeObjectAttributes(&ObjectAttributes,
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NULL,
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OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
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NULL,
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NULL);
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/* Create a section for the DLL */
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/* Create a section for the DLL */
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Status = ZwCreateSection(&SectionHandle,
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Status = ZwCreateSection(&SectionHandle,
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SECTION_MAP_EXECUTE,
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SECTION_MAP_EXECUTE,
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NULL,
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&ObjectAttributes,
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NULL,
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NULL,
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PAGE_EXECUTE,
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PAGE_EXECUTE,
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SEC_COMMIT,
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SEC_IMAGE,
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ImageHandle);
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ImageHandle);
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if (!NT_SUCCESS(Status)) return Status;
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if (!NT_SUCCESS(Status)) return Status;
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@ -2038,13 +2104,31 @@ MmCheckSystemImage(IN HANDLE ImageHandle,
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{
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{
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/* First, verify the checksum */
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/* First, verify the checksum */
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if (!LdrVerifyMappedImageMatchesChecksum(ViewBase,
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if (!LdrVerifyMappedImageMatchesChecksum(ViewBase,
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FileStandardInfo.
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ViewSize,
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EndOfFile.LowPart,
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FileStandardInfo.
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FileStandardInfo.
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EndOfFile.LowPart))
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EndOfFile.LowPart))
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{
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{
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/* Set checksum failure */
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/* Set checksum failure */
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Status = STATUS_IMAGE_CHECKSUM_MISMATCH;
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Status = STATUS_IMAGE_CHECKSUM_MISMATCH;
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goto Fail;
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}
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/* Make sure it's a real image */
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NtHeaders = RtlImageNtHeader(ViewBase);
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if (!NtHeaders)
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{
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/* Set checksum failure */
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Status = STATUS_IMAGE_CHECKSUM_MISMATCH;
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goto Fail;
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}
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/* Make sure it's for the correct architecture */
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if ((NtHeaders->FileHeader.Machine != IMAGE_FILE_MACHINE_NATIVE) ||
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(NtHeaders->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC))
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{
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/* Set protection failure */
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Status = STATUS_INVALID_IMAGE_PROTECT;
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goto Fail;
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}
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}
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/* Check that it's a valid SMP image if we have more then one CPU */
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/* Check that it's a valid SMP image if we have more then one CPU */
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@ -2056,6 +2140,7 @@ MmCheckSystemImage(IN HANDLE ImageHandle,
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}
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}
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/* Unmap the section, close the handle, and return status */
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/* Unmap the section, close the handle, and return status */
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Fail:
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ZwUnmapViewOfSection(NtCurrentProcess(), ViewBase);
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ZwUnmapViewOfSection(NtCurrentProcess(), ViewBase);
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KeUnstackDetachProcess(&ApcState);
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KeUnstackDetachProcess(&ApcState);
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ZwClose(SectionHandle);
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ZwClose(SectionHandle);
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@ -2330,13 +2415,11 @@ LoaderScan:
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/* Check for success */
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/* Check for success */
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if (NT_SUCCESS(Status))
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if (NT_SUCCESS(Status))
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{
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{
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#if 0
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/* Support large pages for drivers */
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/* Support large pages for drivers */
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MiUseLargeDriverPage(DriverSize / PAGE_SIZE,
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MiUseLargeDriverPage(DriverSize / PAGE_SIZE,
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&ModuleLoadBase,
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&ModuleLoadBase,
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&BaseName,
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&BaseName,
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TRUE);
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TRUE);
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#endif
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}
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}
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/* Dereference the section */
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/* Dereference the section */
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