Example #1
0
        private static DiskGeometry GetDiskGeometry(DriveLayout.FileSafeHandle handle)
        {
            var name = "\\\\.\\C:";
//            var handle = DriveLayout.NativeMethods.CreateFile(name, DriveLayout.NativeMethods.AccessRights.GENERIC_READ | DriveLayout.NativeMethods.AccessRights.GENERIC_WRITE, FileShare.Read | FileShare.Write, IntPtr.Zero, DriveLayout.NativeMethods.FileCreationDisposition.OPEN_EXISTING, FileAttributes.Normal, IntPtr.Zero)

            int geometrySize = Marshal.SizeOf(typeof(DiskGeometry));
            //Console.WriteLine("geometry size = {0}", geometrySize);

            IntPtr geometryBlob = Marshal.AllocHGlobal(geometrySize);
            uint   numBytesRead = 0;


            DriveLayout.NativeMethods.DeviceIoControl(
                handle,
                DriveLayout.NativeMethods.IoControlCode.IoCtlDiskGetDriveGeometry,
                IntPtr.Zero,
                0,
                geometryBlob,
                (uint)geometrySize,
                ref numBytesRead,
                IntPtr.Zero
                );


            DiskGeometry geometry = (DiskGeometry)Marshal.PtrToStructure(geometryBlob, typeof(DiskGeometry));

            Marshal.FreeHGlobal(geometryBlob);
            Console.WriteLine("Cylinders: " + geometry.Cylinders);
            Console.WriteLine("SectorsPerTrack: " + geometry.SectorsPerTrack);
            Console.WriteLine("TracksPerCylinder: " + geometry.TracksPerCylinder);
            Console.WriteLine("BytesPerSector: " + geometry.BytesPerSector);
            return(geometry);
        }
Example #2
0
        private static long GrowPartition(DiskGeometry geo, DriveLayout.FileSafeHandle handle)
        {
            var name = "\\\\.\\PhysicalDrive0";

            int bytesReturned5;
            var li          = GetPartition(handle, out bytesReturned5);
            var currentSize = li.PartitionEntry[0].PartitionLength;
            var targetSize  = ((long)geo.TracksPerCylinder * (long)geo.SectorsPerTrack * (long)geo.BytesPerSector *
                               geo.Cylinders) - li.PartitionEntry[0].StartingOffset;

            Console.WriteLine("Current Size= " + currentSize);
            Console.WriteLine("Target Size=" + targetSize);
            var expandBy = targetSize - currentSize;

            Console.WriteLine("Need to expand by " + expandBy);
            var recommendedSectors = (li.PartitionEntry[0].PartitionLength - li.PartitionEntry[0].StartingOffset) / geo.BytesPerSector;

            if (expandBy == 0)
            {
                Console.WriteLine("Sectors: " + (li.PartitionEntry[0].PartitionLength / geo.BytesPerSector));
                Console.WriteLine("Recommended sectors = " + recommendedSectors);
                return(recommendedSectors);
            }
            GrowPartition gp = new GrowPartition()
            {
                BytesToGrow     = expandBy,
                PartitionNumber = 1
            };

            int bytesReturned1 = 0;

            ExecuteNativeActionAndCheckLastError(() =>
            {
                bool w = DriveLayout.NativeMethods.DeviceIoControl(handle,
                                                                   DriveLayout.NativeMethods.IoControlCode.DiskGrowPartition,
                                                                   ref gp,
                                                                   Marshal.SizeOf(gp),
                                                                   IntPtr.Zero,
                                                                   0,
                                                                   ref bytesReturned1,
                                                                   IntPtr.Zero);
                Console.WriteLine("Grow Success: " + w);
            });

            Console.WriteLine("Sectors: " + (li.PartitionEntry[0].PartitionLength / geo.BytesPerSector));
            Console.WriteLine("Recommended sectors = " + recommendedSectors);
            return(recommendedSectors);
        }
Example #3
0
        private static void ExpandPartition(DriveLayout.FileSafeHandle handle, DiskGeometry geometry)
        {
            int bytesReturned1;
            var li = GetPartition(handle, out bytesReturned1);

            Console.WriteLine("PartCount " + li.PartitionCount);
            Console.WriteLine("Current Parittion 0 size " + li.PartitionEntry[0].PartitionLength);
            Console.WriteLine("Starting Offset: " + li.PartitionEntry[0].StartingOffset);
            var SizeToBe = ((long)geometry.TracksPerCylinder * (long)geometry.SectorsPerTrack * (long)geometry.BytesPerSector * geometry.Cylinders) - li.PartitionEntry[0].StartingOffset;

            if (SizeToBe == li.PartitionEntry[0].PartitionLength)
            {
                Console.WriteLine("Size is at maxcap");
            }
            else
            {
                li.PartitionEntry[0].PartitionLength = SizeToBe;

                Console.WriteLine("Expanding Parittion 0 to size " + li.PartitionEntry[0].PartitionLength);
                bool outp = false;
                ExecuteNativeActionAndCheckLastError(() =>
                {
                    outp = DriveLayout.NativeMethods.DeviceIoControl(
                        handle,
                        DriveLayout.NativeMethods.IoControlCode.IOCTL_DISK_SET_DRIVE_LAYOUT_EX,
                        ref li,
                        Marshal.SizeOf(li),
                        IntPtr.Zero,
                        0,
                        ref bytesReturned1,
                        IntPtr.Zero
                        );
                });
                Console.WriteLine("Success: " + outp);
            }

            Console.WriteLine("Sectors: " + (li.PartitionEntry[0].PartitionLength / geometry.BytesPerSector));
            Console.WriteLine("Recommended sectors = " + (li.PartitionEntry[0].PartitionLength - li.PartitionEntry[0].StartingOffset) / geometry.BytesPerSector);
        }