/* FUNCTIONS *****************************************************************/
-PVOID
-NTAPI
-MiCreatePebOrTeb(PEPROCESS Process,
- PVOID BaseAddress)
-{
- NTSTATUS Status;
- PMMSUPPORT ProcessAddressSpace = &Process->Vm;
- PMEMORY_AREA MemoryArea;
- PHYSICAL_ADDRESS BoundaryAddressMultiple;
- PVOID AllocatedBase = BaseAddress;
- BoundaryAddressMultiple.QuadPart = 0;
-
- /* Acquire the Lock */
- MmLockAddressSpace(ProcessAddressSpace);
-
- /*
- * Create a Peb or Teb.
- * Loop until it works, decreasing by PAGE_SIZE each time. The logic here
- * is that a PEB allocation should never fail since the address is free,
- * while TEB allocation can fail, and we should simply try the address
- * below. Is there a nicer way of doing this automagically? (ie: findning)
- * a gap region? -- Alex
- */
- do {
- DPRINT("Trying to allocate: %x\n", AllocatedBase);
- Status = MmCreateMemoryArea(ProcessAddressSpace,
- MEMORY_AREA_PEB_OR_TEB,
- &AllocatedBase,
- PAGE_SIZE,
- PAGE_READWRITE,
- &MemoryArea,
- TRUE,
- 0,
- BoundaryAddressMultiple);
- AllocatedBase = RVA(AllocatedBase, -PAGE_SIZE);
- } while (Status != STATUS_SUCCESS);
-
- /* Initialize the Region */
- MmInitializeRegion(&MemoryArea->Data.VirtualMemoryData.RegionListHead,
- PAGE_SIZE,
- MEM_COMMIT,
- PAGE_READWRITE);
-
- /* Reserve the pages */
- MmReserveSwapPages(PAGE_SIZE);
-
- /* Unlock Address Space */
- DPRINT("Returning\n");
- MmUnlockAddressSpace(ProcessAddressSpace);
- return RVA(AllocatedBase, PAGE_SIZE);
-}
-
-VOID
-NTAPI
-MmDeleteTeb(PEPROCESS Process,
- PTEB Teb)
-{
- PMMSUPPORT ProcessAddressSpace = &Process->Vm;
- PMEMORY_AREA MemoryArea;
-
- /* Lock the Address Space */
- MmLockAddressSpace(ProcessAddressSpace);
-
- MemoryArea = MmLocateMemoryAreaByAddress(ProcessAddressSpace, (PVOID)Teb);
- if (MemoryArea)
- {
- /* Delete the Teb */
- MmFreeVirtualMemory(Process, MemoryArea);
- }
-
- /* Unlock the Address Space */
- MmUnlockAddressSpace(ProcessAddressSpace);
-}
-
-NTSTATUS
-NTAPI
-MmInitializeHandBuiltProcess2(IN PEPROCESS Process)
-{
- PVOID BaseAddress;
- PMEMORY_AREA MemoryArea;
- PHYSICAL_ADDRESS BoundaryAddressMultiple;
- NTSTATUS Status;
- PMMSUPPORT ProcessAddressSpace = &Process->Vm;
- BoundaryAddressMultiple.QuadPart = 0;
-
- /* Create the shared data page */
- BaseAddress = (PVOID)USER_SHARED_DATA;
- Status = MmCreateMemoryArea(ProcessAddressSpace,
- MEMORY_AREA_SHARED_DATA,
- &BaseAddress,
- PAGE_SIZE,
- PAGE_EXECUTE_READ,
- &MemoryArea,
- FALSE,
- 0,
- BoundaryAddressMultiple);
- return Status;
-}
-
-NTSTATUS
-NTAPI
-MmInitializeProcessAddressSpace(IN PEPROCESS Process,
- IN PEPROCESS ProcessClone OPTIONAL,
- IN PVOID Section OPTIONAL,
- IN OUT PULONG Flags,
- IN POBJECT_NAME_INFORMATION *AuditName OPTIONAL)
-{
- NTSTATUS Status;
- PMMSUPPORT ProcessAddressSpace = &Process->Vm;
- PVOID BaseAddress;
- PMEMORY_AREA MemoryArea;
- PHYSICAL_ADDRESS BoundaryAddressMultiple;
- SIZE_T ViewSize = 0;
- PVOID ImageBase = 0;
- PROS_SECTION_OBJECT SectionObject = Section;
- BoundaryAddressMultiple.QuadPart = 0;
-
- /* Initialize the Addresss Space lock */
- KeInitializeGuardedMutex(&Process->AddressCreationLock);
- Process->Vm.WorkingSetExpansionLinks.Flink = NULL;
-
- /* Initialize AVL tree */
- ASSERT(Process->VadRoot.NumberGenericTableElements == 0);
- Process->VadRoot.BalancedRoot.u1.Parent = &Process->VadRoot.BalancedRoot;
-
- /* Acquire the Lock */
- MmLockAddressSpace(ProcessAddressSpace);
-
- /* Protect the highest 64KB of the process address space */
- BaseAddress = (PVOID)MmUserProbeAddress;
- Status = MmCreateMemoryArea(ProcessAddressSpace,
- MEMORY_AREA_NO_ACCESS,
- &BaseAddress,
- 0x10000,
- PAGE_NOACCESS,
- &MemoryArea,
- FALSE,
- 0,
- BoundaryAddressMultiple);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Failed to protect last 64KB\n");
- goto exit;
- }
-
- /* Protect the 60KB above the shared user page */
- BaseAddress = (char*)USER_SHARED_DATA + PAGE_SIZE;
- Status = MmCreateMemoryArea(ProcessAddressSpace,
- MEMORY_AREA_NO_ACCESS,
- &BaseAddress,
- 0x10000 - PAGE_SIZE,
- PAGE_NOACCESS,
- &MemoryArea,
- FALSE,
- 0,
- BoundaryAddressMultiple);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Failed to protect the memory above the shared user page\n");
- goto exit;
- }
-
- /* Create the shared data page */
- BaseAddress = (PVOID)USER_SHARED_DATA;
- Status = MmCreateMemoryArea(ProcessAddressSpace,
- MEMORY_AREA_SHARED_DATA,
- &BaseAddress,
- PAGE_SIZE,
- PAGE_EXECUTE_READ,
- &MemoryArea,
- FALSE,
- 0,
- BoundaryAddressMultiple);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Failed to create Shared User Data\n");
- goto exit;
- }
-
- /* The process now has an address space */
- Process->HasAddressSpace = TRUE;
-
- /* Check if there's a Section Object */
- if (SectionObject)
- {
- UNICODE_STRING FileName;
- PWCHAR szSrc;
- PCHAR szDest;
- USHORT lnFName = 0;
-
- /* Unlock the Address Space */
- DPRINT("Unlocking\n");
- MmUnlockAddressSpace(ProcessAddressSpace);
-
- DPRINT("Mapping process image. Section: %p, Process: %p, ImageBase: %p\n",
- SectionObject, Process, &ImageBase);
- Status = MmMapViewOfSection(Section,
- (PEPROCESS)Process,
- (PVOID*)&ImageBase,
- 0,
- 0,
- NULL,
- &ViewSize,
- 0,
- MEM_COMMIT,
- PAGE_READWRITE);
- if (!NT_SUCCESS(Status))
- {
- DPRINT1("Failed to map process Image\n");
- return Status;
- }
-
- /* Save the pointer */
- Process->SectionBaseAddress = ImageBase;
-
- /* Determine the image file name and save it to EPROCESS */
- DPRINT("Getting Image name\n");
- FileName = SectionObject->FileObject->FileName;
- szSrc = (PWCHAR)((PCHAR)FileName.Buffer + FileName.Length);
- if (FileName.Buffer)
- {
- /* Loop the file name*/
- while (szSrc > FileName.Buffer)
- {
- /* Make sure this isn't a backslash */
- if (*--szSrc == OBJ_NAME_PATH_SEPARATOR)
- {
- /* If so, stop it here */
- szSrc++;
- break;
- }
- else
- {
- /* Otherwise, keep going */
- lnFName++;
- }
- }
- }
-
- /* Copy the to the process and truncate it to 15 characters if necessary */
- szDest = Process->ImageFileName;
- lnFName = min(lnFName, sizeof(Process->ImageFileName) - 1);
- while (lnFName--) *szDest++ = (UCHAR)*szSrc++;
- *szDest = ANSI_NULL;
-
- /* Check if caller wants an audit name */
- if (AuditName)
- {
- /* Setup the audit name */
- SeInitializeProcessAuditName(SectionObject->FileObject,
- FALSE,
- AuditName);
- }
-
- /* Return status to caller */
- return Status;
- }
-
-exit:
- /* Unlock the Address Space */
- DPRINT("Unlocking\n");
- MmUnlockAddressSpace(ProcessAddressSpace);
-
- /* Return status to caller */
- return Status;
-}
-
-VOID
-NTAPI
-MmCleanProcessAddressSpace(IN PEPROCESS Process)
-{
- /* FIXME: Add part of MmDeleteProcessAddressSpace here */
-}
-
NTSTATUS
NTAPI
MmDeleteProcessAddressSpace(PEPROCESS Process)
break;
case MEMORY_AREA_VIRTUAL_MEMORY:
- case MEMORY_AREA_PEB_OR_TEB:
MmFreeVirtualMemory(Process, MemoryArea);
break;
- case MEMORY_AREA_SHARED_DATA:
- case MEMORY_AREA_NO_ACCESS:
+ case MEMORY_AREA_OWNED_BY_ARM3:
MmFreeMemoryArea(&Process->Vm,
MemoryArea,
NULL,
NULL);
break;
- case MEMORY_AREA_MDL_MAPPING:
- KeBugCheck(PROCESS_HAS_LOCKED_PAGES);
- break;
-
default:
KeBugCheck(MEMORY_MANAGEMENT);
}
}
- Mmi386ReleaseMmInfo(Process);
-
MmUnlockAddressSpace(&Process->Vm);
DPRINT("Finished MmReleaseMmInfo()\n");
projects / reactos.git / blobdiff