SECTION_ALL_ACCESS
};
-static const INFORMATION_CLASS_INFO ExSectionInfoClass[] =
-{
- ICI_SQ_SAME( sizeof(SECTION_BASIC_INFORMATION), sizeof(ULONG), ICIF_QUERY ), /* SectionBasicInformation */
- ICI_SQ_SAME( sizeof(SECTION_IMAGE_INFORMATION), sizeof(ULONG), ICIF_QUERY ), /* SectionImageInformation */
-};
/* FUNCTIONS *****************************************************************/
* filesystems do because it is safe for us to use an offset with an
* alignment less than the file system block size.
*/
+ KeEnterCriticalRegion();
Status = CcRosGetVacb(SharedCacheMap,
FileOffset,
&BaseOffset,
&Vacb);
if (!NT_SUCCESS(Status))
{
+ KeLeaveCriticalRegion();
return(Status);
}
if (!UptoDate)
if (!NT_SUCCESS(Status))
{
CcRosReleaseVacb(SharedCacheMap, Vacb, FALSE, FALSE, FALSE);
+ KeLeaveCriticalRegion();
return Status;
}
}
FileOffset - BaseOffset).LowPart >> PAGE_SHIFT;
CcRosReleaseVacb(SharedCacheMap, Vacb, TRUE, FALSE, TRUE);
+ KeLeaveCriticalRegion();
}
else
{
{
return(Status);
}
+ KeEnterCriticalRegion();
Status = CcRosGetVacb(SharedCacheMap,
FileOffset,
&BaseOffset,
&Vacb);
if (!NT_SUCCESS(Status))
{
+ KeLeaveCriticalRegion();
return(Status);
}
if (!UptoDate)
if (!NT_SUCCESS(Status))
{
CcRosReleaseVacb(SharedCacheMap, Vacb, FALSE, FALSE, FALSE);
+ KeLeaveCriticalRegion();
return Status;
}
}
&Vacb);
if (!NT_SUCCESS(Status))
{
+ KeLeaveCriticalRegion();
return(Status);
}
if (!UptoDate)
if (!NT_SUCCESS(Status))
{
CcRosReleaseVacb(SharedCacheMap, Vacb, FALSE, FALSE, FALSE);
+ KeLeaveCriticalRegion();
return Status;
}
}
}
MiUnmapPageInHyperSpace(Process, PageAddr, Irql);
CcRosReleaseVacb(SharedCacheMap, Vacb, TRUE, FALSE, FALSE);
+ KeLeaveCriticalRegion();
}
return(STATUS_SUCCESS);
}
SectionSize.QuadPart = 0xFFFFFFFF;
InitializeObjectAttributes(&Obj,
&Name,
- OBJ_PERMANENT,
+ OBJ_PERMANENT | OBJ_KERNEL_EXCLUSIVE,
NULL,
NULL);
Status = MmCreateSection((PVOID)&PhysSection,
{
ObDereferenceObject(Section);
ObDereferenceObject(FileObject);
- return STATUS_FILE_INVALID;
+ return STATUS_MAPPED_FILE_SIZE_ZERO;
}
}
BufferSize = PAGE_ROUND_UP(BufferSize);
/* Flush data since we're about to perform a non-cached read */
+ KeEnterCriticalRegion();
CcFlushCache(FileObject->SectionObjectPointer,
&FileOffset,
BufferSize,
&Iosb);
+ KeLeaveCriticalRegion();
/*
* It's ok to use paged pool, because this is a temporary buffer only used in
if (FileObject == NULL)
return STATUS_INVALID_FILE_FOR_SECTION;
+#ifndef NEWCC
+ if (FileObject->SectionObjectPointer->SharedCacheMap == NULL)
+ {
+ DPRINT1("Denying section creation due to missing cache initialization\n");
+ return STATUS_INVALID_FILE_FOR_SECTION;
+ }
+#endif
+
/*
* Create the section
*/
(MemoryArea->Type != MEMORY_AREA_CACHE)) ||
MemoryArea->DeleteInProgress)
{
- if (MemoryArea) NT_ASSERT(MemoryArea->Type != MEMORY_AREA_OWNED_BY_ARM3);
+ if (MemoryArea) ASSERT(MemoryArea->Type != MEMORY_AREA_OWNED_BY_ARM3);
MmUnlockAddressSpace(AddressSpace);
return STATUS_NOT_MAPPED_VIEW;
}
* and calculate the image base address */
for (i = 0; i < NrSegments; i++)
{
- if (!(SectionSegments[i].Image.Characteristics & IMAGE_SCN_TYPE_NOLOAD))
+ if (Segment == &SectionSegments[i])
{
- if (Segment == &SectionSegments[i])
- {
- ImageBaseAddress = (char*)BaseAddress - (ULONG_PTR)SectionSegments[i].Image.VirtualAddress;
- break;
- }
+ ImageBaseAddress = (char*)BaseAddress - (ULONG_PTR)SectionSegments[i].Image.VirtualAddress;
+ break;
}
}
if (i >= NrSegments)
for (i = 0; i < NrSegments; i++)
{
- if (!(SectionSegments[i].Image.Characteristics & IMAGE_SCN_TYPE_NOLOAD))
- {
- PVOID SBaseAddress = (PVOID)
- ((char*)ImageBaseAddress + (ULONG_PTR)SectionSegments[i].Image.VirtualAddress);
+ PVOID SBaseAddress = (PVOID)
+ ((char*)ImageBaseAddress + (ULONG_PTR)SectionSegments[i].Image.VirtualAddress);
- Status = MmUnmapViewOfSegment(AddressSpace, SBaseAddress);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("MmUnmapViewOfSegment failed for %p (Process %p) with %lx\n",
- SBaseAddress, Process, Status);
- NT_ASSERT(NT_SUCCESS(Status));
- }
+ Status = MmUnmapViewOfSegment(AddressSpace, SBaseAddress);
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("MmUnmapViewOfSegment failed for %p (Process %p) with %lx\n",
+ SBaseAddress, Process, Status);
+ ASSERT(NT_SUCCESS(Status));
}
}
}
{
DPRINT1("MmUnmapViewOfSegment failed for %p (Process %p) with %lx\n",
BaseAddress, Process, Status);
- NT_ASSERT(NT_SUCCESS(Status));
+ ASSERT(NT_SUCCESS(Status));
}
}
*
* @implemented
*/
-NTSTATUS NTAPI
-NtQuerySection(IN HANDLE SectionHandle,
- IN SECTION_INFORMATION_CLASS SectionInformationClass,
- OUT PVOID SectionInformation,
- IN SIZE_T SectionInformationLength,
- OUT PSIZE_T ResultLength OPTIONAL)
+NTSTATUS
+NTAPI
+NtQuerySection(
+ _In_ HANDLE SectionHandle,
+ _In_ SECTION_INFORMATION_CLASS SectionInformationClass,
+ _Out_ PVOID SectionInformation,
+ _In_ SIZE_T SectionInformationLength,
+ _Out_opt_ PSIZE_T ResultLength)
{
PROS_SECTION_OBJECT Section;
KPROCESSOR_MODE PreviousMode;
PAGED_CODE();
PreviousMode = ExGetPreviousMode();
+ if (PreviousMode != KernelMode)
+ {
+ _SEH2_TRY
+ {
+ ProbeForWrite(SectionInformation,
+ SectionInformationLength,
+ __alignof(ULONG));
+ if (ResultLength != NULL)
+ {
+ ProbeForWrite(ResultLength,
+ sizeof(*ResultLength),
+ __alignof(SIZE_T));
+ }
+ }
+ _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
+ {
+ return _SEH2_GetExceptionCode();
+ }
+ _SEH2_END;
+ }
- Status = DefaultQueryInfoBufferCheck(SectionInformationClass,
- ExSectionInfoClass,
- sizeof(ExSectionInfoClass) / sizeof(ExSectionInfoClass[0]),
- SectionInformation,
- (ULONG)SectionInformationLength,
- NULL,
- ResultLength,
- PreviousMode);
-
- if(!NT_SUCCESS(Status))
+ if (SectionInformationClass == SectionBasicInformation)
{
- DPRINT1("NtQuerySection() failed, Status: 0x%x\n", Status);
- return Status;
+ if (SectionInformationLength < sizeof(SECTION_BASIC_INFORMATION))
+ {
+ return STATUS_INFO_LENGTH_MISMATCH;
+ }
+ }
+ else if (SectionInformationClass == SectionImageInformation)
+ {
+ if (SectionInformationLength < sizeof(SECTION_IMAGE_INFORMATION))
+ {
+ return STATUS_INFO_LENGTH_MISMATCH;
+ }
+ }
+ else
+ {
+ return STATUS_INVALID_INFO_CLASS;
}
Status = ObReferenceObjectByHandle(SectionHandle,
PreviousMode,
(PVOID*)(PVOID)&Section,
NULL);
- if (NT_SUCCESS(Status))
+ if (!NT_SUCCESS(Status))
+ {
+ DPRINT1("Failed to reference section: 0x%lx\n", Status);
+ return Status;
+ }
+
+ switch (SectionInformationClass)
{
- switch (SectionInformationClass)
- {
case SectionBasicInformation:
{
PSECTION_BASIC_INFORMATION Sbi = (PSECTION_BASIC_INFORMATION)SectionInformation;
break;
}
- }
-
- ObDereferenceObject(Section);
}
+ ObDereferenceObject(Section);
+
return(Status);
}
ImageSize = 0;
for (i = 0; i < NrSegments; i++)
{
- if (!(SectionSegments[i].Image.Characteristics & IMAGE_SCN_TYPE_NOLOAD))
- {
- ULONG_PTR MaxExtent;
- MaxExtent = (ULONG_PTR)(SectionSegments[i].Image.VirtualAddress +
- SectionSegments[i].Length.QuadPart);
- ImageSize = max(ImageSize, MaxExtent);
- }
+ ULONG_PTR MaxExtent;
+ MaxExtent = (ULONG_PTR)(SectionSegments[i].Image.VirtualAddress +
+ SectionSegments[i].Length.QuadPart);
+ ImageSize = max(ImageSize, MaxExtent);
}
ImageSectionObject->ImageInformation.ImageFileSize = (ULONG)ImageSize;
if (((ImageBase + ImageSize) > (ULONG_PTR)MmHighestUserAddress) ||
((ImageBase + ImageSize) < ImageSize))
{
- NT_ASSERT(*BaseAddress == NULL);
+ ASSERT(*BaseAddress == NULL);
ImageBase = ALIGN_DOWN_BY((ULONG_PTR)MmHighestUserAddress - ImageSize,
MM_VIRTMEM_GRANULARITY);
NotAtBase = TRUE;
}
else if (ImageBase != ALIGN_DOWN_BY(ImageBase, MM_VIRTMEM_GRANULARITY))
{
- NT_ASSERT(*BaseAddress == NULL);
+ ASSERT(*BaseAddress == NULL);
ImageBase = ALIGN_DOWN_BY(ImageBase, MM_VIRTMEM_GRANULARITY);
NotAtBase = TRUE;
}
for (i = 0; i < NrSegments; i++)
{
- if (!(SectionSegments[i].Image.Characteristics & IMAGE_SCN_TYPE_NOLOAD))
+ PVOID SBaseAddress = (PVOID)
+ ((char*)ImageBase + (ULONG_PTR)SectionSegments[i].Image.VirtualAddress);
+ MmLockSectionSegment(&SectionSegments[i]);
+ Status = MmMapViewOfSegment(AddressSpace,
+ Section,
+ &SectionSegments[i],
+ &SBaseAddress,
+ SectionSegments[i].Length.LowPart,
+ SectionSegments[i].Protection,
+ 0,
+ 0);
+ MmUnlockSectionSegment(&SectionSegments[i]);
+ if (!NT_SUCCESS(Status))
{
- PVOID SBaseAddress = (PVOID)
- ((char*)ImageBase + (ULONG_PTR)SectionSegments[i].Image.VirtualAddress);
- MmLockSectionSegment(&SectionSegments[i]);
- Status = MmMapViewOfSegment(AddressSpace,
- Section,
- &SectionSegments[i],
- &SBaseAddress,
- SectionSegments[i].Length.LowPart,
- SectionSegments[i].Protection,
- 0,
- 0);
- MmUnlockSectionSegment(&SectionSegments[i]);
- if (!NT_SUCCESS(Status))
- {
- MmUnlockAddressSpace(AddressSpace);
- return(Status);
- }
+ MmUnlockAddressSpace(AddressSpace);
+ return(Status);
}
}
}
MmUnlockAddressSpace(AddressSpace);
- NT_ASSERT(*BaseAddress == ALIGN_DOWN_POINTER_BY(*BaseAddress, MM_VIRTMEM_GRANULARITY));
+ ASSERT(*BaseAddress == ALIGN_DOWN_POINTER_BY(*BaseAddress, MM_VIRTMEM_GRANULARITY));
if (NotAtBase)
Status = STATUS_IMAGE_NOT_AT_BASE;
projects / reactos.git / blobdiff