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[NTOSKRNL] Store the MM_IMAGE_SECTION_OBJECT pointer in SECTION::Segment

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This commit is contained in:
Jérôme Gardou 2020-10-23 17:27:47 +02:00
parent c6a87f28bf
commit e980efebd4
4 changed files with 27 additions and 24 deletions
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2
ntoskrnl/include/internal/mm.h
View File

@ -200,8 +200,6 @@ typedef struct _ROS_SECTION_OBJECT
{
SECTION;
PFILE_OBJECT FileObject;
PMM_IMAGE_SECTION_OBJECT ImageSection;
} ROS_SECTION_OBJECT, *PROS_SECTION_OBJECT;
#define MA_GetStartingAddress(_MemoryArea) ((_MemoryArea)->VadNode.StartingVpn << PAGE_SHIFT)

8
ntoskrnl/mm/ARM3/section.c
View File

@ -1789,8 +1789,14 @@ MmGetImageInformation (OUT PSECTION_IMAGE_INFORMATION ImageInformation)
ASSERT(SectionObject != NULL);
ASSERT(MiIsRosSectionObject(SectionObject) == TRUE);
if (SectionObject->u.Flags.Image == 0)
{
RtlZeroMemory(ImageInformation, sizeof(*ImageInformation));
return;
}
/* Return the image information */
*ImageInformation = ((PROS_SECTION_OBJECT)SectionObject)->ImageSection->ImageInformation;
*ImageInformation = ((PMM_IMAGE_SECTION_OBJECT)SectionObject->Segment)->ImageInformation;
}
NTSTATUS

20
ntoskrnl/mm/ARM3/sysldr.c
View File

@ -81,13 +81,13 @@ MiCacheImageSymbols(IN PVOID BaseAddress)
NTSTATUS
NTAPI
MiLoadImageSection(IN OUT PVOID *SectionPtr,
OUT PVOID *ImageBase,
IN PUNICODE_STRING FileName,
IN BOOLEAN SessionLoad,
IN PLDR_DATA_TABLE_ENTRY LdrEntry)
MiLoadImageSection(_Inout_ PSECTION *SectionPtr,
_Out_ PVOID *ImageBase,
_In_ PUNICODE_STRING FileName,
_In_ BOOLEAN SessionLoad,
_In_ PLDR_DATA_TABLE_ENTRY LdrEntry)
{
PROS_SECTION_OBJECT Section = *SectionPtr;
PSECTION Section = *SectionPtr;
NTSTATUS Status;
PEPROCESS Process;
PVOID Base = NULL;
@ -158,7 +158,7 @@ MiLoadImageSection(IN OUT PVOID *SectionPtr,
}
/* Reserve system PTEs needed */
PteCount = ROUND_TO_PAGES(Section->ImageSection->ImageInformation.ImageFileSize) >> PAGE_SHIFT;
PteCount = ROUND_TO_PAGES(((PMM_IMAGE_SECTION_OBJECT)Section->Segment)->ImageInformation.ImageFileSize) >> PAGE_SHIFT;
PointerPte = MiReserveSystemPtes(PteCount, SystemPteSpace);
if (!PointerPte)
{
@ -2837,7 +2837,7 @@ MmLoadSystemImage(IN PUNICODE_STRING FileName,
PWCHAR MissingDriverName;
HANDLE SectionHandle;
ACCESS_MASK DesiredAccess;
PVOID Section = NULL;
PSECTION Section = NULL;
BOOLEAN LockOwned = FALSE;
PLIST_ENTRY NextEntry;
IMAGE_INFO ImageInfo;
@ -3054,7 +3054,7 @@ LoaderScan:
SECTION_MAP_EXECUTE,
MmSectionObjectType,
KernelMode,
&Section,
(PVOID*)&Section,
NULL);
ZwClose(SectionHandle);
if (!NT_SUCCESS(Status)) goto Quickie;
@ -3085,7 +3085,7 @@ LoaderScan:
ASSERT(Status != STATUS_ALREADY_COMMITTED);
/* Get the size of the driver */
DriverSize = ((PROS_SECTION_OBJECT)Section)->ImageSection->ImageInformation.ImageFileSize;
DriverSize = ((PMM_IMAGE_SECTION_OBJECT)Section->Segment)->ImageInformation.ImageFileSize;
/* Make sure we're not being loaded into session space */
if (!Flags)

21
ntoskrnl/mm/section.c
View File

@ -2633,7 +2633,7 @@ MmpFreePageFileSegment(PMM_SECTION_SEGMENT Segment)
VOID NTAPI
MmpDeleteSection(PVOID ObjectBody)
{
PROS_SECTION_OBJECT Section = (PROS_SECTION_OBJECT)ObjectBody;
PROS_SECTION_OBJECT Section = ObjectBody;
/* Check if it's an ARM3, or ReactOS section */
if (!MiIsRosSectionObject(Section))
@ -2656,11 +2656,11 @@ MmpDeleteSection(PVOID ObjectBody)
* until the image section is properly initialized we shouldn't
* process further here.
*/
if (Section->ImageSection == NULL)
if (Section->Segment == NULL)
return;
SectionSegments = Section->ImageSection->Segments;
NrSegments = Section->ImageSection->NrSegments;
SectionSegments = ((PMM_IMAGE_SECTION_OBJECT)Section->Segment)->Segments;
NrSegments = ((PMM_IMAGE_SECTION_OBJECT)Section->Segment)->NrSegments;
for (i = 0; i < NrSegments; i++)
{
@ -3763,7 +3763,7 @@ MmCreateImageSection(PROS_SECTION_OBJECT *SectionObject,
return(Status);
}
Section->ImageSection = ImageSectionObject;
Section->Segment = (PSEGMENT)ImageSectionObject;
ASSERT(ImageSectionObject->Segments);
/*
@ -3788,7 +3788,7 @@ MmCreateImageSection(PROS_SECTION_OBJECT *SectionObject,
ExFreePool(ImageSectionObject->Segments);
ExFreePool(ImageSectionObject);
ImageSectionObject = FileObject->SectionObjectPointer->ImageSectionObject;
Section->ImageSection = ImageSectionObject;
Section->Segment = (PSEGMENT)ImageSectionObject;
SectionSegments = ImageSectionObject->Segments;
for (i = 0; i < ImageSectionObject->NrSegments; i++)
@ -3813,7 +3813,7 @@ MmCreateImageSection(PROS_SECTION_OBJECT *SectionObject,
}
ImageSectionObject = FileObject->SectionObjectPointer->ImageSectionObject;
Section->ImageSection = ImageSectionObject;
Section->Segment = (PSEGMENT)ImageSectionObject;
SectionSegments = ImageSectionObject->Segments;
/*
@ -4114,7 +4114,7 @@ MiRosUnmapViewOfSection(IN PEPROCESS Process,
PMM_SECTION_SEGMENT Segment;
Segment = MemoryArea->SectionData.Segment;
ImageSectionObject = Section->ImageSection;
ImageSectionObject = ((PMM_IMAGE_SECTION_OBJECT)Section->Segment);
SectionSegments = ImageSectionObject->Segments;
NrSegments = ImageSectionObject->NrSegments;
@ -4314,8 +4314,7 @@ NtQuerySection(
{
if (RosSection->u.Flags.Image)
{
PMM_IMAGE_SECTION_OBJECT ImageSectionObject;
ImageSectionObject = RosSection->ImageSection;
PMM_IMAGE_SECTION_OBJECT ImageSectionObject = ((PMM_IMAGE_SECTION_OBJECT)Section->Segment);
*Sii = ImageSectionObject->ImageInformation;
}
@ -4504,7 +4503,7 @@ MmMapViewOfSection(IN PVOID SectionObject,
PMM_IMAGE_SECTION_OBJECT ImageSectionObject;
PMM_SECTION_SEGMENT SectionSegments;
ImageSectionObject = Section->ImageSection;
ImageSectionObject = ((PMM_IMAGE_SECTION_OBJECT)Section->Segment);
SectionSegments = ImageSectionObject->Segments;
NrSegments = ImageSectionObject->NrSegments;