internal static PrivateHeader GetPrivateHeader(VirtualDisk disk)
{
if (disk.IsPartitioned)
{
long headerPos = 0;
PartitionTable pt = disk.Partitions;
if (pt is BiosPartitionTable)
{
headerPos = 0xc00;
}
else
{
foreach (var part in pt.Partitions)
{
if (part.GuidType == GuidPartitionTypes.WindowsLdmMetadata)
{
headerPos = part.LastSector * Sizes.Sector;
}
}
}
if (headerPos != 0)
{
disk.Content.Position = headerPos;
byte[] buffer = new byte[Sizes.Sector];
disk.Content.Read(buffer, 0, buffer.Length);
PrivateHeader hdr = new PrivateHeader();
hdr.ReadFrom(buffer, 0);
return(hdr);
}
}
return(null);
}
internal DynamicDisk(VirtualDisk disk)
{
_disk = disk;
_header = GetPrivateHeader(_disk);
TocBlock toc = GetTableOfContents();
long dbStart = (_header.ConfigurationStartLba * 512) + (toc.Item1Start * 512);
_disk.Content.Position = dbStart;
_database = new Database(_disk.Content);
}
/// <summary>
/// Adds a new disk to be managed.
/// </summary>
/// <param name="disk">The disk to manage</param>
public void Add(VirtualDisk disk)
{
PrivateHeader header = DynamicDisk.GetPrivateHeader(disk);
DynamicDiskGroup group;
if (_groups.TryGetValue(header.DiskGroupId, out group))
{
group.Add(disk);
}
else
{
group = new DynamicDiskGroup(disk);
_groups.Add(header.DiskGroupId, group);
}
}