public static GPT FromSectors(byte[] buff)
{
GCHandle handle = GCHandle.Alloc(buff, GCHandleType.Pinned);
GPT s = (GPT)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(GPT));
handle.Free();
return(s);
}
private void button1_Click(object sender, EventArgs e)
{
if (drivesView.SelectedItems.Count > 0)
{
byte[] x = new byte[512];
llda.WriteSector(drivesView.SelectedItems[0].SubItems[1].Text, 1, 512, x);
UInt64 totalSectors = (UInt64.Parse(drivesView.SelectedItems[0].SubItems[2].Text));
GPT gpt = GPT.FromSectors(llda.ReadSector(drivesView.SelectedItems[0].SubItems[1].Text, 0, 4096 * 5));
GPT gpt2 = GPT.FromSectors(llda.ReadSectors(drivesView.SelectedItems[0].SubItems[1].Text, (long)totalSectors - 2, 512, 2));
llda.refreshDrive(drivesView.SelectedItems[0].SubItems[1].Text);
// gpt.gptHeader.UpdateCRC32(CRC.CRC32(gpt.gptPartitionTable.ToByteArray()));
}
}
public static Boolean IsBFS(string drive)
{
Boolean test = true;
//Check if first Partition is BFS
byte[] first;
first = llda.ReadSector(drive, 0, 4096 * 5);
if (first != null)
{
gpt = GPT.FromSectors(first);
test = test && (gpt.gptPartitionTable.partitions[0].BFSParitionType == new Guid("53525542-4354-494F-4E46-494C45535953"));
//Check if BFSTOC v1 exists
bfsTOC = BFSTOC.FromSector(llda.ReadSector(drive, 5, 4096));
byte[] version = Encoding.ASCII.GetBytes("BFS1");
test = test && bfsTOC.version.SequenceEqual(version);
return(test);
}
return(false);
}
public static void FormatDriveGPT(string drive, UInt64 totalSectors, UInt32 bytesPerSector, UInt64 id)
{
//create GPT
GPT gpt = new GPT(totalSectors, bytesPerSector);
byte[] test = gpt.ToByteArray();
//create BFSTOC
BFSTOC bfsTOC = BFSTOC.emptyToc(totalSectors, bytesPerSector, true);
bfsTOC.id = id;
//write GPT
llda.WriteSector(drive, 0, 4096, gpt.ToByteArray());
//write MirrorGPT
gpt.ToggleMirror();
llda.WriteSector(drive, (Int64)totalSectors - 40, 512, gpt.ToGPTMirrorByteArray());
//write BFSTOC
llda.WriteSector(drive, 5, 4096, bfsTOC.ToByteArray());
//write mirror BFSTOC
llda.WriteSector(drive, 6 + (Int64)bfsTOC.diskspace, 4096, bfsTOC.ToByteArray());
//trigger OS partition table re-read
llda.refreshDrive(drive);
}