/*
* CTOR - Creates FATBootSector and Calculates Partition Cluster Start LBA
*
*/
public Partition(byte[] bootSectorBytes, HardDrive hdd, PartitionTableEntry entry)
{
if (entry.TypeCode == 0x0B || entry.TypeCode == 0x0C)
{
bootSector = new FATBootSector(bootSectorBytes);
//Partition cluster starts immediately following both FAT's
clusterBeginLBA = entry.LBA_Begin1 + bootSector.BPB.ReservedSectors + (bootSector.BPB.NumOfFATs * bootSector.BPB.SectorsPerFAT32);
fatBeginLBA = entry.LBA_Begin1 + bootSector.BPB.ReservedSectors;
}
this.hdd = hdd;
this.entry = entry;
}
/*
* CTOR - Creates FATBootSector and Calculates Partition Cluster Start LBA
*
*/
public Partition(byte[] bootSectorBytes, HardDrive hdd, PartitionTableEntry entry)
{
if (entry.TypeCode == 0x0B || entry.TypeCode == 0x0C)
{
bootSector = new FATBootSector(bootSectorBytes);
//Partition cluster starts immediately following both FAT's
clusterBeginLBA = entry.LBA_Begin1 + bootSector.BPB.ReservedSectors + (bootSector.BPB.NumOfFATs * bootSector.BPB.SectorsPerFAT32);
fatBeginLBA = entry.LBA_Begin1 + bootSector.BPB.ReservedSectors;
}
this.hdd = hdd;
this.entry = entry;
}
/*
* CTOR - Deserializes partition table bytes and creates partition table entries
*/
public PartitionTable(byte[] data)
{
//Four partitions per partition table (64 bytes)
partitions = new PartitionTableEntry[4];
//Iterate over each entry
for (int i = 0; i < 4; i++)
{
byte[] entry = new byte[16];
Array.Copy(data, i * 16, entry, 0, entry.Length);
//Deserialize
partitions[i] = new PartitionTableEntry(entry);
}
}
/*
* CTOR - Deserializes partition table bytes and creates partition table entries
*/
public PartitionTable(byte[] data)
{
//Four partitions per partition table (64 bytes)
partitions = new PartitionTableEntry[4];
//Iterate over each entry
for (int i = 0; i < 4; i++)
{
byte[] entry = new byte[16];
Array.Copy(data, i * 16, entry, 0, entry.Length);
//Deserialize
partitions[i] = new PartitionTableEntry(entry);
}
}
/*
* ParseDirectoryEntries - Seeks disk to Directory Table start then begins recursive creation *
*/
public void ParseDirectoryEntries(BufferedDiskReader disk)
{
disk.SeekAbsolute((ulong)this.clusterBeginLBA * BootSector.BPB.BytesPerSector);
int error = Marshal.GetLastWin32Error();
byte[] data = new byte[32];
disk.Read(data, 0, data.Length);
rootDirectory = new DirectoryEntry(data, disk, this);
if (!rootDirectory.IsVolumeID)
{
DirectoryEntry entry = rootDirectory;
rootDirectory = new DirectoryEntry();
rootDirectory.Children.Add(entry);
disk.Read(data, 0, data.Length);
entry = new DirectoryEntry(data, disk, this);
while (entry.Type != DirectoryEntryType.EndOfDirectory)
{
if (entry.Type != DirectoryEntryType.Unused)
{
rootDirectory.Children.Add(entry);
}
disk.Read(data, 0, data.Length);
entry = new DirectoryEntry(data, disk, this);
}
}
}
