cfsd.c

FSD的经典例子 相信很多人需要啊 大家快下在吧

    // to attach under those circumstances
     if ( ( FlagOn( FLTFL_INSTANCE_SETUP_AUTOMATIC_ATTACHMENT, Flags ) ) &&
          ( FlagOn( FLTFL_INSTANCE_SETUP_AUTOMATIC_ATTACHMENT, gAttachRequirements->InstanceFlags ) ) )
     {
       // If FLTFL_INSTANCE_SETUP_NEWLY_MOUNTED_VOLUME is set and we are not accepting it, return STATUS_FLT_DO_NOT_ATTACH
       if ( ( FlagOn( FLTFL_INSTANCE_SETUP_NEWLY_MOUNTED_VOLUME, Flags ) ) &&
            ( !FlagOn( FLTFL_INSTANCE_SETUP_NEWLY_MOUNTED_VOLUME, gAttachRequirements->InstanceFlags ) ) )
       {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED attach method - FLTFL_INSTANCE_SETUP_AUTOMATIC_ATTACHMENT -> FLTFL_INSTANCE_SETUP_NEWLY_MOUNTED_VOLUME\n") );
        return STATUS_FLT_DO_NOT_ATTACH;
       } // End if ( ( FlagOn( FLTFL_INSTANCE_SETUP_NEWLY_MOUNTED_VOLUME, Flags ) ) &&
         //          ( !FlagOn( FLTFL_INSTANCE_SETUP_NEWLY_MOUNTED_VOLUME, gAttachRequirements->InstanceFlags ) ) )

#if DBG
  if ( FlagOn( FLTFL_INSTANCE_SETUP_NEWLY_MOUNTED_VOLUME, Flags ) )
  {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ACCEPTED attach method - FLTFL_INSTANCE_SETUP_AUTOMATIC_ATTACHMENT -> FLTFL_INSTANCE_SETUP_NEWLY_MOUNTED_VOLUME\n") );
  }
  else
  {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ACCEPTED attach method - FLTFL_INSTANCE_SETUP_AUTOMATIC_ATTACHMENT\n") );
  } 
#endif // End #if DBG

     } // End if ( ( FlagOn( FLTFL_INSTANCE_SETUP_AUTOMATIC_ATTACHMENT, Flags ) ) &&
       //          ( FlagOn( FLTFL_INSTANCE_SETUP_AUTOMATIC_ATTACHMENT, gAttachRequirements->InstanceFlags ) ) )
     else if ( ( FlagOn( FLTFL_INSTANCE_SETUP_MANUAL_ATTACHMENT, Flags ) ) &&
               ( FlagOn( FLTFL_INSTANCE_SETUP_MANUAL_ATTACHMENT, gAttachRequirements->InstanceFlags ) ) )
     {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ACCEPTED attach method - FLTFL_INSTANCE_SETUP_MANUAL_ATTACHMENT\n") );

     } // End if ( ( FlagOn( FLTFL_INSTANCE_SETUP_MANUAL_ATTACHMENT, Flags ) ) &&
       //          ( FlagOn( FLTFL_INSTANCE_SETUP_MANUAL_ATTACHMENT, gAttachRequirements->InstanceFlags ) ) )
     else
     {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED ATTACHMENT - Unknown FLAGS in fInstanceSetup()\n") );
      return STATUS_FLT_DO_NOT_ATTACH;
     }

// *************************************************************************************


   switch ( VolumeDeviceType )
   {
    case FILE_DEVICE_UNKNOWN:
        {
          if ( FlagOn( gAttachRequirements->InstanceVolumeDeviceTypes, MASK_FILE_DEVICE_UNKNOWN ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FILE_DEVICE_CD_ROM_FILE_SYSTEM:
        {
          if ( FlagOn( gAttachRequirements->InstanceVolumeDeviceTypes, MASK_FILE_DEVICE_CD_ROM_FILE_SYSTEM ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume  <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FILE_DEVICE_DFS_FILE_SYSTEM:
        {
          if ( FlagOn( gAttachRequirements->InstanceVolumeDeviceTypes, MASK_FILE_DEVICE_DFS_FILE_SYSTEM ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FILE_DEVICE_DISK_FILE_SYSTEM:
        {
          if ( FlagOn( gAttachRequirements->InstanceVolumeDeviceTypes, MASK_FILE_DEVICE_DISK_FILE_SYSTEM ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FILE_DEVICE_NETWORK_FILE_SYSTEM:
        {
          if ( FlagOn( gAttachRequirements->InstanceVolumeDeviceTypes, MASK_FILE_DEVICE_NETWORK_FILE_SYSTEM ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }

    case FILE_DEVICE_TAPE_FILE_SYSTEM:
        {
          if ( FlagOn( gAttachRequirements->InstanceVolumeDeviceTypes, MASK_FILE_DEVICE_TAPE_FILE_SYSTEM ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }

    case FILE_DEVICE_NULL:
        {
          if ( FlagOn( gAttachRequirements->InstanceVolumeDeviceTypes, MASK_FILE_DEVICE_NULL ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }

    case FILE_DEVICE_VIRTUAL_DISK:
        {
          if ( FlagOn( gAttachRequirements->InstanceVolumeDeviceTypes, MASK_FILE_DEVICE_VIRTUAL_DISK ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume <%wZ> [%wZ] (%wZ)\n", &DosName, &VolumeProperties->RealDeviceName, &VolumeProperties->FileSystemDeviceName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
        default :
               {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACHED to NONSUPPORTED Volume Device type : 0x%x\n",VolumeDeviceType ) );

                return STATUS_FLT_DO_NOT_ATTACH;
               }

   } // End switch ( VolumeDeviceType 

// *************************************************************************************


   switch ( VolumeFilesystemType )
   {
    case FLT_FSTYPE_UNKNOWN:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_UNKNOWN ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to File System type : FLT_FSTYPE_UNKNOWN [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_UNKNOWN [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FLT_FSTYPE_RAW:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_RAW ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_RAW [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_RAW [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FLT_FSTYPE_NTFS:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_NTFS ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_NTFS [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_NTFS [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FLT_FSTYPE_FAT:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_FAT ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_FAT [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_FAT [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FLT_FSTYPE_CDFS:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_CDFS ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_CDFS [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_CDFS [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FLT_FSTYPE_UDFS:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_UDFS ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_UDFS [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_UDFS [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FLT_FSTYPE_LANMAN:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_LANMAN ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_LANMAN [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_LANMAN [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FLT_FSTYPE_WEBDAV:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_WEBDAV ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_WEBDAV [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_WEBDAV [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }
         break;
        }
    case FLT_FSTYPE_RDPDR:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_RDPDR ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_RDPDR [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_RDPDR [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }

         break;
        }
    case FLT_FSTYPE_NFS:
        {

          if ( FlagOn( gAttachRequirements->InstancedFileSystemTypes, MASK_FSTYPE_NFS ) )
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "ATTACHED to Volume File System type : FLT_FSTYPE_NFS [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
          }
          else
          {
 DBG_PRINT( DbgOutput, DBG_ATTACH_INSTANCE, (PRINT_TAG_ATTACH "REFUSED to ATTACH to Volume File System type : FLT_FSTYPE_NFS [%wZ]\n",&VolumeProperties->FileSystemDriverName ) );
           return STATUS_FLT_DO_NOT_ATTACH;
          }