reactos/drivers/fs/np/mount.c

   1 /*
   2  * COPYRIGHT:  See COPYING in the top level directory
   3  * PROJECT:    ReactOS kernel
   4  * FILE:       services/fs/np/mount.c
   5  * PURPOSE:    Named pipe filesystem
   6  * PROGRAMMER: David Welch <welch@cwcom.net>
   7  */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include <ddk/ntddk.h>
  12
  13 //#define NDEBUG
  14 #include <internal/debug.h>
  15
  16 #include "np.h"
  17
  18 /* GLOBALS *******************************************************************/
  19
  20 static PDRIVER_OBJECT DriverObject;
  21
  22 /* FUNCTIONS *****************************************************************/
  23
  24 NTSTATUS NpfsMount(PDEVICE_OBJECT DeviceToMount)
  25 {
  26    NTSTATUS Status;
  27    PDEVICE_OBJECT DeviceObject;
  28    PNPFS_DEVICE_EXTENSION DeviceExt;
  29
  30    Status = IoCreateDevice(DriverObject,
  31                            sizeof(NPFS_DEVICE_EXTENSION),
  32                            NULL,
  33                            FILE_DEVICE_FILE_SYSTEM,
  34                            0,
  35                            FALSE,
  36                            &DeviceObject);
  37    if (!NT_SUCCESS(Status))
  38      {
  39         return(Status);
  40      }
  41
  42    DeviceObject->Flags = DeviceObject->Flags | DO_DIRECT_IO;
  43    DeviceExt = (PNPFS_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  44
  45    DeviceExt->StorageDevice = IoAttachDeviceToDeviceStack(DeviceObject,
  46                                                           DeviceToMount);
  47
  48    return(STATUS_SUCCESS);
  49 }
  50
  51 NTSTATUS NpfsFileSystemControl(PDEVICE_OBJECT DeviceObject,
  52                                PIRP Irp)
  53 {
  54    PIO_STACK_LOCATION IoStack = IoGetCurrentIrpStackLocation(Irp);
  55    PVPB Vpb = IoStack->Parameters.Mount.Vpb;
  56    PDEVICE_OBJECT DeviceToMount = IoStack->Parameters.Mount.DeviceObject;
  57    NTSTATUS Status;
  58
  59    Status = NpfsMount(DeviceToMount);
  60
  61    Irp->IoStatus.Status = Status;
  62    Irp->IoStatus.Information = 0;
  63
  64    IoCompleteRequest(Irp, IO_NO_INCREMENT);
  65
  66    return(Status);
  67
  68 }
  69
  70 NTSTATUS DriverEntry(PDRIVER_OBJECT _DriverObject,
  71                      PUNICODE_STRING RegistryPath)
  72 {
  73    PDEVICE_OBJECT DeviceObject;
  74    NTSTATUS Status;
  75    UNICODE_STRING DeviceName;
  76
  77    DbgPrint("Named Pipe Filesystem\n");
  78
  79    DriverObject = _DriverObject;
  80
  81    RtlInitUnicodeString(&DeviceName, L"\\Device\\Npfs");
  82    Status = IoCreateDevice(DriverObject,
  83                            0,
  84                            &DeviceName,
  85                            FILE_DEVICE_FILE_SYSTEM,
  86                            0,
  87                            FALSE,
  88                            &DeviceObject);
  89    if (!NT_SUCCESS(Status))
  90      {
  91         return(Status);
  92      }
  93
  94    DeviceObject->Flags = 0;
  95    DeviceObject->MajorFunction[IRP_MJ_CLOSE] = NpfsClose;
  96    DeviceObject->MajorFunction[IRP_MJ_CREATE] = NpfsCreate;
  97    DeviceObject->MajorFunction[IRP_MJ_READ] = NpfsRead;
  98    DeviceObject->MajorFunction[IRP_MJ_WRITE] = NpfsWrite;
  99    DeviceObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] =
 100      NpfsFileSystemControl;
 101    DeviceObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] =
 102      NpfsDirectoryControl;
 103    DeviceObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] =
 104      NpfsQueryInformation;
 105    DeviceObject->MajorFunction[IRP_MJ_SET_INFORMATION] =
 106      NpfsSetInformation;
 107    DeviceObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = NpfsFlushBuffers;
 108    DeviceObject->MajorFunction[IRP_MJ_SHUTDOWN] = NpfsShutdown;
 109    DeviceObject->MajorFunction[IRP_MJ_CLEANUP] = NpfsCleanup;
 110    DeviceObject->MajorFunction[IRP_MJ_QUERY_SECURITY] =
 111      NpfsQuerySecurity;
 112    DeviceObject->MajorFunction[IRP_MJ_SET_SECURITY] =
 113      NpfsSetSecurity;
 114    DeviceObject->MajorFunction[IRP_MJ_QUERY_QUOTA] =
 115      NpfsQueryQuota;
 116    DeviceObject->MajorFunction[IRP_MJ_SET_QUOTA] =
 117      NpfsSetQuota;
 118
 119    DriverObject->DriverUnload = NULL;
 120
 121    IoRegisterFileSystem(DeviceObject);
 122
 123    return(STATUS_SUCCESS);
 124 }