mirror of
https://github.com/reactos/reactos.git
synced 2025-02-24 09:25:10 +00:00
- NtQuerySection should check for SECTION_QUERY access right and not SECTION_MAP_READ.
- Fix prototype of NtExtendSection. svn path=/trunk/; revision=10620
This commit is contained in:
Filip Navara
parent
5eef6d16e3
commit
b71178e84e
3 changed files with 91 additions and 27 deletions
|
|
@ -17,6 +17,7 @@
|
|||
|
||||
#define SEC_BASED (0x00200000)
|
||||
#define SEC_NO_CHANGE (0x00400000)
|
||||
#define SEC_FILE (0x00800000)
|
||||
#define SEC_IMAGE (0x01000000)
|
||||
#define SEC_VLM (0x02000000)
|
||||
#define SEC_RESERVE (0x04000000)
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
|
||||
/* $Id: zw.h,v 1.28 2004/07/17 05:13:05 ion Exp $
|
||||
/* $Id: zw.h,v 1.29 2004/08/20 21:23:49 navaraf Exp $
|
||||
*
|
||||
* COPYRIGHT: See COPYING in the top level directory
|
||||
* PROJECT: ReactOS kernel
|
||||
|
|
@ -5251,7 +5251,7 @@ NTSTATUS
|
|||
STDCALL
|
||||
NtExtendSection(
|
||||
IN HANDLE SectionHandle,
|
||||
IN ULONG NewMaximumSize
|
||||
IN PLARGE_INTEGER NewMaximumSize
|
||||
);
|
||||
|
||||
/*
|
||||
|
|
@ -6441,7 +6441,7 @@ NTSTATUS
|
|||
STDCALL
|
||||
ZwExtendSection(
|
||||
IN HANDLE SectionHandle,
|
||||
IN ULONG NewMaximumSize
|
||||
IN PLARGE_INTEGER NewMaximumSize
|
||||
);
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -16,7 +16,7 @@
|
|||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
/* $Id: section.c,v 1.159 2004/08/18 02:29:37 navaraf Exp $
|
||||
/* $Id: section.c,v 1.160 2004/08/20 21:23:49 navaraf Exp $
|
||||
*
|
||||
* PROJECT: ReactOS kernel
|
||||
* FILE: ntoskrnl/mm/section.c
|
||||
|
|
@ -3440,30 +3440,41 @@ NtUnmapViewOfSection (HANDLE ProcessHandle,
|
|||
}
|
||||
|
||||
|
||||
NTSTATUS STDCALL
|
||||
NtQuerySection (IN HANDLE SectionHandle,
|
||||
IN CINT SectionInformationClass,
|
||||
OUT PVOID SectionInformation,
|
||||
IN ULONG Length,
|
||||
OUT PULONG ResultLength)
|
||||
/*
|
||||
* FUNCTION: Queries the information of a section object.
|
||||
* ARGUMENTS:
|
||||
* SectionHandle = Handle to the section link object
|
||||
* SectionInformationClass = Index to a certain information structure
|
||||
* SectionInformation (OUT)= Caller supplies storage for resulting
|
||||
* information
|
||||
* Length = Size of the supplied storage
|
||||
* ResultLength = Data written
|
||||
* RETURNS: Status
|
||||
/**
|
||||
* Queries the information of a section object.
|
||||
*
|
||||
* @param SectionHandle
|
||||
* Handle to the section object. It must be opened with SECTION_QUERY
|
||||
* access.
|
||||
* @param SectionInformationClass
|
||||
* Index to a certain information structure. Can be either
|
||||
* SectionBasicInformation or SectionImageInformation. The latter
|
||||
* is valid only for sections that were created with the SEC_IMAGE
|
||||
* flag.
|
||||
* @param SectionInformation
|
||||
* Caller supplies storage for resulting information.
|
||||
* @param Length
|
||||
* Size of the supplied storage.
|
||||
* @param ResultLength
|
||||
* Data written.
|
||||
*
|
||||
* @return Status.
|
||||
*
|
||||
* @todo Guard by SEH.
|
||||
* @implemented
|
||||
*/
|
||||
NTSTATUS STDCALL
|
||||
NtQuerySection(IN HANDLE SectionHandle,
|
||||
IN CINT SectionInformationClass,
|
||||
OUT PVOID SectionInformation,
|
||||
IN ULONG Length,
|
||||
OUT PULONG ResultLength)
|
||||
{
|
||||
PSECTION_OBJECT Section;
|
||||
NTSTATUS Status;
|
||||
|
||||
Status = ObReferenceObjectByHandle(SectionHandle,
|
||||
SECTION_MAP_READ,
|
||||
SECTION_QUERY,
|
||||
MmSectionObjectType,
|
||||
UserMode,
|
||||
(PVOID*)&Section,
|
||||
|
|
@ -3487,9 +3498,17 @@ NtQuerySection (IN HANDLE SectionHandle,
|
|||
|
||||
Sbi = (PSECTION_BASIC_INFORMATION)SectionInformation;
|
||||
|
||||
Sbi->BaseAddress = 0;
|
||||
Sbi->Attributes = 0;
|
||||
Sbi->Size.QuadPart = 0;
|
||||
Sbi->Attributes = Section->AllocationAttributes;
|
||||
if (Section->AllocationAttributes & SEC_IMAGE)
|
||||
{
|
||||
Sbi->BaseAddress = 0;
|
||||
Sbi->Size.QuadPart = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
Sbi->BaseAddress = Section->Segment->VirtualAddress;
|
||||
Sbi->Size.QuadPart = Section->Segment->Length;
|
||||
}
|
||||
|
||||
*ResultLength = sizeof(SECTION_BASIC_INFORMATION);
|
||||
Status = STATUS_SUCCESS;
|
||||
|
|
@ -3537,12 +3556,56 @@ NtQuerySection (IN HANDLE SectionHandle,
|
|||
}
|
||||
|
||||
|
||||
/**
|
||||
* Extends size of file backed section.
|
||||
*
|
||||
* @param SectionHandle
|
||||
* Handle to the section object. It must be opened with
|
||||
* SECTION_EXTEND_SIZE access.
|
||||
* @param NewMaximumSize
|
||||
* New maximum size of the section in bytes.
|
||||
*
|
||||
* @return Status.
|
||||
*
|
||||
* @todo Guard by SEH.
|
||||
* @todo Move the actual code to internal function MmExtendSection.
|
||||
* @unimplemented
|
||||
*/
|
||||
NTSTATUS STDCALL
|
||||
NtExtendSection(IN HANDLE SectionHandle,
|
||||
IN ULONG NewMaximumSize)
|
||||
IN PLARGE_INTEGER NewMaximumSize)
|
||||
{
|
||||
UNIMPLEMENTED;
|
||||
return(STATUS_NOT_IMPLEMENTED);
|
||||
PSECTION_OBJECT Section;
|
||||
NTSTATUS Status;
|
||||
|
||||
Status = ObReferenceObjectByHandle(SectionHandle,
|
||||
SECTION_EXTEND_SIZE,
|
||||
MmSectionObjectType,
|
||||
UserMode,
|
||||
(PVOID*)&Section,
|
||||
NULL);
|
||||
if (!NT_SUCCESS(Status))
|
||||
{
|
||||
return Status;
|
||||
}
|
||||
|
||||
if (!(Section->AllocationAttributes & SEC_FILE))
|
||||
{
|
||||
ObfDereferenceObject(Section);
|
||||
return STATUS_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
/*
|
||||
* - Acquire file extneding resource.
|
||||
* - Check if we're not resizing the section below it's actual size!
|
||||
* - Extend segments if needed.
|
||||
* - Set file information (FileAllocationInformation) to the new size.
|
||||
* - Release file extending resource.
|
||||
*/
|
||||
|
||||
ObDereferenceObject(Section);
|
||||
|
||||
return STATUS_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue