private void ResizeVolume()
{
long additionalNumberOfSectors = m_additionalNumberOfBytes / m_volume.BytesPerSector;
btnBack.Enabled = false;
btnNext.Enabled = false;
m_processing = true;
m_resizeTimer = new System.Windows.Forms.Timer();
m_resizeTimer.Interval = 1000;
m_resizeTimer.Tick += new EventHandler(ResizeTimer_Tick);
m_resizeTimer.Start();
Thread thread = new Thread(delegate()
{
// Because of performance implications, we must fill the container
// before writing the updated TrueCrypt header to the end of the container.
// See here for more details: http://blogs.msdn.com/b/oldnewthing/archive/2011/09/22/10215053.aspx
long oldSize = m_disk.Size;
m_bytesToFill = additionalNumberOfSectors * m_disk.BytesPerSector;
try
{
m_disk.Extend(m_bytesToFill);
}
catch (IOException ex)
{
MessageBox.Show(ex.Message, "Error");
this.Invoke((MethodInvoker) delegate()
{
btnBack.Enabled = true;
btnNext.Enabled = true;
});
return;
}
if (chkFillWithRandomData.Checked)
{
TrueCryptResize.FillAllocatedSpaceWithData(m_disk, oldSize, ref m_bytesFilled);
}
MasterBootRecord mbr = MasterBootRecord.ReadFromDisk(m_disk);
if (mbr != null && mbr.IsGPTBasedDisk)
{
GuidPartitionTable.RebaseDisk(m_disk, mbr);
}
m_resizeStatus = TrueCryptResize.ExtendVolumeAndFileSystem(m_disk, m_password, additionalNumberOfSectors);
// reinitialize the partition / volume
m_partition = VolumeSelectionHelper.GetLastPartition(m_disk);
m_volume = new TrueCryptVolume(m_partition, m_password);
m_processing = false;
});
thread.Start();
if (chkFillWithRandomData.Checked)
{
progressBarFillWithRandomData.Visible = true;
}
}
private void AdvanceToNextTab()
{
switch (tabControl1.SelectedIndex)
{
case 0:
{
if (txtVolumeFile.Text != String.Empty)
{
try
{
m_password = GetPassword();
}
catch (IOException)
{
MessageBox.Show("Cannot access one or more keyfiles", "Error");
return;
}
try
{
m_disk = DiskImage.GetDiskImage(txtVolumeFile.Text);
}
catch (IOException)
{
MessageBox.Show("Cannot access the selected file", "Error");
return;
}
catch (NotImplementedException)
{
MessageBox.Show("Disk image format is not supported", "Error");
return;
}
if (DiskAccessLibrary.LogicalDiskManager.DynamicDisk.IsDynamicDisk(m_disk))
{
MessageBox.Show("Dynamic disks are not supported", "Error");
return;
}
try
{
m_partition = VolumeSelectionHelper.GetLastPartition(m_disk);
}
catch (IOException)
{
MessageBox.Show("Cannot access the disk", "Error");
return;
}
if (m_partition == null)
{
MessageBox.Show("Partition table does not contain a valid partition", "Error");
return;
}
try
{
m_volume = new TrueCryptVolume(m_partition, m_password);
}
catch (InvalidDataException)
{
MessageBox.Show("Invalid TrueCrypt volume or incorrect password", "Error");
return;
}
catch (NotSupportedException)
{
MessageBox.Show("Unsupported TrueCrypt volume format version", "Error");
return;
}
ListDiskDetails();
tabControl1.SelectedTab = tabControl1.TabPages[1];
btnBack.Enabled = true;
}
break;
}
case 1:
{
if (!m_isSupportedFileSystem)
{
MessageBox.Show("File system is not supported", "Unsupported Operation");
}
else if (m_volume.IsHiddenVolume)
{
MessageBox.Show("Resizing an hidden volume is not supported", "Unsupported Operation");
}
else if (!(m_disk is VirtualHardDisk || m_disk is VirtualMachineDisk) && (m_partition is MBRPartition || m_partition is GPTPartition))
{
MessageBox.Show("Resizing a volume on a raw disk image is not supported, use VHD", "Unsupported Operation");
}
else
{
UpdateFreeSpace();
tabControl1.SelectedTab = tabControl1.TabPages[2];
}
break;
}
case 2:
{
m_additionalNumberOfBytes = Conversion.ToInt64(txtSizeToAdd.Text, 0);
m_additionalNumberOfBytes *= 1024 * 1024;
if (radioGB.Checked)
{
m_additionalNumberOfBytes *= 1024;
}
if (m_additionalNumberOfBytes <= 0)
{
MessageBox.Show("Invalid size", "Error");
return;
}
string driveName = Path.GetPathRoot(txtVolumeFile.Text);
long availableFreeSpace = (long)Win32Utils.GetFreeDiskSpace(driveName);
if (availableFreeSpace < m_additionalNumberOfBytes)
{
MessageBox.Show("Not enough free space", "Error");
return;
}
tabControl1.SelectedTab = tabControl1.TabPages[3];
btnNext.Text = "Resize";
break;
}
case 3:
{
// We'll check free disk space again just to be sure
string driveName = Path.GetPathRoot(txtVolumeFile.Text);
long availableFreeSpace = (long)Win32Utils.GetFreeDiskSpace(driveName);
if (availableFreeSpace < m_additionalNumberOfBytes)
{
MessageBox.Show("Not enough free space", "Error");
return;
}
btnBack.Enabled = false;
btnNext.Enabled = false;
chkFillWithRandomData.Enabled = false;
ResizeVolume();
break;
}
case 4:
{
this.Close();
break;
}
}
}
