reactos/drivers/fs/np/npfs.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:  See COPYING in the top level directory
   4  * PROJECT:    ReactOS kernel
   5  * FILE:       services/fs/np/mount.c
   6  * PURPOSE:    Named pipe filesystem
   7  * PROGRAMMER: David Welch <welch@cwcom.net>
   8  */
   9
  10 /* INCLUDES ******************************************************************/
  11
  12 #include <ddk/ntddk.h>
  13 #include "npfs.h"
  14
  15 #define NDEBUG
  16 #include <debug.h>
  17
  18 /* FUNCTIONS *****************************************************************/
  19
  20 NTSTATUS STDCALL
  21 DriverEntry(PDRIVER_OBJECT DriverObject,
  22             PUNICODE_STRING RegistryPath)
  23 {
  24    PNPFS_DEVICE_EXTENSION DeviceExtension;
  25    PDEVICE_OBJECT DeviceObject;
  26    UNICODE_STRING DeviceName;
  27    NTSTATUS Status;
  28
  29    DPRINT("Named Pipe FSD 0.0.2\n");
  30
  31    DriverObject->MajorFunction[IRP_MJ_CREATE] = NpfsCreate;
  32    DriverObject->MajorFunction[IRP_MJ_CREATE_NAMED_PIPE] =
  33      NpfsCreateNamedPipe;
  34    DriverObject->MajorFunction[IRP_MJ_CLOSE] = NpfsClose;
  35    DriverObject->MajorFunction[IRP_MJ_READ] = NpfsRead;
  36    DriverObject->MajorFunction[IRP_MJ_WRITE] = NpfsWrite;
  37    DriverObject->MajorFunction[IRP_MJ_QUERY_INFORMATION] =
  38      NpfsQueryInformation;
  39    DriverObject->MajorFunction[IRP_MJ_SET_INFORMATION] =
  40      NpfsSetInformation;
  41    DriverObject->MajorFunction[IRP_MJ_QUERY_VOLUME_INFORMATION] =
  42      NpfsQueryVolumeInformation;
  43 //   DriverObject->MajorFunction[IRP_MJ_CLEANUP] = NpfsCleanup;
  44    DriverObject->MajorFunction[IRP_MJ_FLUSH_BUFFERS] = NpfsFlushBuffers;
  45 //   DriverObject->MajorFunction[IRP_MJ_DIRECTORY_CONTROL] =
  46 //     NpfsDirectoryControl;
  47    DriverObject->MajorFunction[IRP_MJ_FILE_SYSTEM_CONTROL] =
  48      NpfsFileSystemControl;
  49 //   DriverObject->MajorFunction[IRP_MJ_QUERY_SECURITY] =
  50 //     NpfsQuerySecurity;
  51 //   DriverObject->MajorFunction[IRP_MJ_SET_SECURITY] =
  52 //     NpfsSetSecurity;
  53
  54    DriverObject->DriverUnload = NULL;
  55
  56    RtlInitUnicodeString(&DeviceName, L"\\Device\\NamedPipe");
  57    Status = IoCreateDevice(DriverObject,
  58                            sizeof(NPFS_DEVICE_EXTENSION),
  59                            &DeviceName,
  60                            FILE_DEVICE_NAMED_PIPE,
  61                            0,
  62                            FALSE,
  63                            &DeviceObject);
  64    if (!NT_SUCCESS(Status))
  65      {
  66         DPRINT("Failed to create named pipe device! (Status %x)\n", Status);
  67         return(Status);
  68      }
  69
  70    /* initialize the device object */
  71    DeviceObject->Flags = DO_DIRECT_IO;
  72
  73    /* initialize the device extension */
  74    DeviceExtension = DeviceObject->DeviceExtension;
  75    InitializeListHead(&DeviceExtension->PipeListHead);
  76    KeInitializeMutex(&DeviceExtension->PipeListLock,
  77                      0);
  78
  79    /* set the size quotas */
  80    DeviceExtension->MinQuota = PAGE_SIZE;
  81    DeviceExtension->DefaultQuota = 8 * PAGE_SIZE;
  82    DeviceExtension->MaxQuota = 64 * PAGE_SIZE;
  83
  84    return(STATUS_SUCCESS);
  85 }
  86
  87 /* EOF */