#001 BOOLEAN
#002 INIT_FUNCTION
#003 NTAPI
#004 IopMarkBootPartition(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
#005 {
#006 OBJECT_ATTRIBUTES ObjectAttributes;
#007 STRING DeviceString;
#008 CHAR Buffer[256];
#009 UNICODE_STRING DeviceName;
#010 NTSTATUS Status;
#011 HANDLE FileHandle;
#012 IO_STATUS_BLOCK IoStatusBlock;
#013 PFILE_OBJECT FileObject;
#014
创建ARC的设备名称。
#015 /* Build the ARC device name */
#016 sprintf(Buffer,"//ArcName//%s",LoaderBlock->ArcBootDeviceName);
#017 RtlInitAnsiString(&DeviceString,Buffer);
#018 Status = RtlAnsiStringToUnicodeString(&DeviceName,&DeviceString,TRUE);
#019 if (!NT_SUCCESS(Status)) return FALSE;
#020
打开引导设备。
#021 /* Open it */
#022 InitializeObjectAttributes(&ObjectAttributes,
#023 &DeviceName,
#024 OBJ_CASE_INSENSITIVE,
#025 NULL,
#026 NULL);
#027 Status = ZwOpenFile(&FileHandle,
#028 FILE_READ_ATTRIBUTES,
#029 &ObjectAttributes,
#030 &IoStatusBlock,
#031 0,
#032 FILE_NON_DIRECTORY_FILE);
#033 if (!NT_SUCCESS(Status))
#034 {
#035 /* Fail */
#036 KeBugCheckEx(INACCESSIBLE_BOOT_DEVICE,
#037 (ULONG_PTR)&DeviceName,
#038 Status,
#039 0,
#040 0);
#041 }
#042
获取这个设备的对象。
#043 /* Get the DO */
#044 Status = ObReferenceObjectByHandle(FileHandle,
#045 0,
#046 IoFileObjectType,
#047 KernelMode,
#048 (PVOID *)&FileObject,
#049 NULL);
#050 if (!NT_SUCCESS(Status))
#051 {
#052 /* Fail */
#053 RtlFreeUnicodeString(&DeviceName);
#054 return FALSE;
#055 }
#056
#057 /* Mark it as the boot partition */
#058 FileObject->DeviceObject->Flags |= DO_SYSTEM_BOOT_PARTITION;
#059
#060 /* Save a copy of the DO for the I/O Error Logger */
#061 ObReferenceObject(FileObject->DeviceObject);
#062 IopErrorlogobject = FileObject->DeviceObject;
#063
#064 /* Cleanup and return success */
#065 RtlFreeUnicodeString(&DeviceName);
#066 NtClose(FileHandle);
#067 ObDereferenceObject(FileObject);
#068 return TRUE;
#069 }
#070
