public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if (imagePlugin.Info.SectorSize < 256)
{
return(false);
}
// Documentation says ID should be sector 0
// I've found that OS-9/X68000 has it on sector 4
// I've read OS-9/Apple2 has it on sector 15
foreach (int i in new[]
{
0, 4, 15
})
{
ulong location = (ulong)i;
uint sbSize = (uint)(Marshal.SizeOf <IdSector>() / imagePlugin.Info.SectorSize);
if (Marshal.SizeOf <IdSector>() % imagePlugin.Info.SectorSize != 0)
{
sbSize++;
}
if (partition.Start + location + sbSize >= imagePlugin.Info.Sectors)
{
break;
}
byte[] sector = imagePlugin.ReadSectors(partition.Start + location, sbSize);
if (sector.Length < Marshal.SizeOf <IdSector>())
{
return(false);
}
IdSector rbfSb = Marshal.ByteArrayToStructureBigEndian <IdSector>(sector);
NewIdSector rbf9000Sb = Marshal.ByteArrayToStructureBigEndian <NewIdSector>(sector);
AaruConsole.DebugWriteLine("RBF plugin",
"magic at {0} = 0x{1:X8} or 0x{2:X8} (expected 0x{3:X8} or 0x{4:X8})",
location, rbfSb.dd_sync, rbf9000Sb.rid_sync, RBF_SYNC, RBF_CNYS);
if (rbfSb.dd_sync == RBF_SYNC ||
rbf9000Sb.rid_sync == RBF_SYNC ||
rbf9000Sb.rid_sync == RBF_CNYS)
{
return(true);
}
}
return(false);
}
public void GetInformation(IMediaImage imagePlugin, Partition partition, out string information,
Encoding encoding)
{
Encoding = encoding ?? Encoding.GetEncoding("iso-8859-15");
information = "";
if (imagePlugin.Info.SectorSize < 256)
{
return;
}
var rbfSb = new IdSector();
var rbf9000Sb = new NewIdSector();
foreach (int i in new[]
{
0, 4, 15
})
{
ulong location = (ulong)i;
uint sbSize = (uint)(Marshal.SizeOf <IdSector>() / imagePlugin.Info.SectorSize);
if (Marshal.SizeOf <IdSector>() % imagePlugin.Info.SectorSize != 0)
{
sbSize++;
}
byte[] sector = imagePlugin.ReadSectors(partition.Start + location, sbSize);
if (sector.Length < Marshal.SizeOf <IdSector>())
{
return;
}
rbfSb = Marshal.ByteArrayToStructureBigEndian <IdSector>(sector);
rbf9000Sb = Marshal.ByteArrayToStructureBigEndian <NewIdSector>(sector);
AaruConsole.DebugWriteLine("RBF plugin",
"magic at {0} = 0x{1:X8} or 0x{2:X8} (expected 0x{3:X8} or 0x{4:X8})",
location, rbfSb.dd_sync, rbf9000Sb.rid_sync, RBF_SYNC, RBF_CNYS);
if (rbfSb.dd_sync == RBF_SYNC ||
rbf9000Sb.rid_sync == RBF_SYNC ||
rbf9000Sb.rid_sync == RBF_CNYS)
{
break;
}
}
if (rbfSb.dd_sync != RBF_SYNC &&
rbf9000Sb.rid_sync != RBF_SYNC &&
rbf9000Sb.rid_sync != RBF_CNYS)
{
return;
}
if (rbf9000Sb.rid_sync == RBF_CNYS)
{
rbf9000Sb = (NewIdSector)Marshal.SwapStructureMembersEndian(rbf9000Sb);
}
var sb = new StringBuilder();
sb.AppendLine("OS-9 Random Block File");
if (rbf9000Sb.rid_sync == RBF_SYNC)
{
sb.AppendFormat("Volume ID: {0:X8}", rbf9000Sb.rid_diskid).AppendLine();
sb.AppendFormat("{0} blocks in volume", rbf9000Sb.rid_totblocks).AppendLine();
sb.AppendFormat("{0} cylinders", rbf9000Sb.rid_cylinders).AppendLine();
sb.AppendFormat("{0} blocks in cylinder 0", rbf9000Sb.rid_cyl0size).AppendLine();
sb.AppendFormat("{0} blocks per cylinder", rbf9000Sb.rid_cylsize).AppendLine();
sb.AppendFormat("{0} heads", rbf9000Sb.rid_heads).AppendLine();
sb.AppendFormat("{0} bytes per block", rbf9000Sb.rid_blocksize).AppendLine();
// TODO: Convert to flags?
sb.AppendLine((rbf9000Sb.rid_format & 0x01) == 0x01 ? "Disk is double sided" : "Disk is single sided");
sb.AppendLine((rbf9000Sb.rid_format & 0x02) == 0x02 ? "Disk is double density"
: "Disk is single density");
if ((rbf9000Sb.rid_format & 0x10) == 0x10)
{
sb.AppendLine("Disk is 384 TPI");
}
else if ((rbf9000Sb.rid_format & 0x08) == 0x08)
{
sb.AppendLine("Disk is 192 TPI");
}
else if ((rbf9000Sb.rid_format & 0x04) == 0x04)
{
sb.AppendLine("Disk is 96 TPI or 135 TPI");
}
else
{
sb.AppendLine("Disk is 48 TPI");
}
sb.AppendFormat("Allocation bitmap descriptor starts at block {0}",
rbf9000Sb.rid_bitmap == 0 ? 1 : rbf9000Sb.rid_bitmap).AppendLine();
if (rbf9000Sb.rid_firstboot > 0)
{
sb.AppendFormat("Debugger descriptor starts at block {0}", rbf9000Sb.rid_firstboot).AppendLine();
}
if (rbf9000Sb.rid_bootfile > 0)
{
sb.AppendFormat("Boot file descriptor starts at block {0}", rbf9000Sb.rid_bootfile).AppendLine();
}
sb.AppendFormat("Root directory descriptor starts at block {0}", rbf9000Sb.rid_rootdir).AppendLine();
sb.AppendFormat("Disk is owned by group {0} user {1}", rbf9000Sb.rid_group, rbf9000Sb.rid_owner).
AppendLine();
sb.AppendFormat("Volume was created on {0}", DateHandlers.UnixToDateTime(rbf9000Sb.rid_ctime)).
AppendLine();
sb.AppendFormat("Volume's identification block was last written on {0}",
DateHandlers.UnixToDateTime(rbf9000Sb.rid_mtime)).AppendLine();
sb.AppendFormat("Volume name: {0}", StringHandlers.CToString(rbf9000Sb.rid_name, Encoding)).
AppendLine();
XmlFsType = new FileSystemType
{
Type = "OS-9 Random Block File",
Bootable = rbf9000Sb.rid_bootfile > 0,
ClusterSize = rbf9000Sb.rid_blocksize,
Clusters = rbf9000Sb.rid_totblocks,
CreationDate = DateHandlers.UnixToDateTime(rbf9000Sb.rid_ctime),
CreationDateSpecified = true,
ModificationDate = DateHandlers.UnixToDateTime(rbf9000Sb.rid_mtime),
ModificationDateSpecified = true,
VolumeName = StringHandlers.CToString(rbf9000Sb.rid_name, Encoding),
VolumeSerial = $"{rbf9000Sb.rid_diskid:X8}"
};
}
else
{
sb.AppendFormat("Volume ID: {0:X4}", rbfSb.dd_dsk).AppendLine();
sb.AppendFormat("{0} blocks in volume", LSNToUInt32(rbfSb.dd_tot)).AppendLine();
sb.AppendFormat("{0} tracks", rbfSb.dd_tks).AppendLine();
sb.AppendFormat("{0} sectors per track", rbfSb.dd_spt).AppendLine();
sb.AppendFormat("{0} bytes per sector", 256 << rbfSb.dd_lsnsize).AppendLine();
sb.AppendFormat("{0} sectors per cluster ({1} bytes)", rbfSb.dd_bit,
rbfSb.dd_bit * (256 << rbfSb.dd_lsnsize)).AppendLine();
// TODO: Convert to flags?
sb.AppendLine((rbfSb.dd_fmt & 0x01) == 0x01 ? "Disk is double sided" : "Disk is single sided");
sb.AppendLine((rbfSb.dd_fmt & 0x02) == 0x02 ? "Disk is double density" : "Disk is single density");
if ((rbfSb.dd_fmt & 0x10) == 0x10)
{
sb.AppendLine("Disk is 384 TPI");
}
else if ((rbfSb.dd_fmt & 0x08) == 0x08)
{
sb.AppendLine("Disk is 192 TPI");
}
else if ((rbfSb.dd_fmt & 0x04) == 0x04)
{
sb.AppendLine("Disk is 96 TPI or 135 TPI");
}
else
{
sb.AppendLine("Disk is 48 TPI");
}
sb.AppendFormat("Allocation bitmap descriptor starts at block {0}",
rbfSb.dd_maplsn == 0 ? 1 : rbfSb.dd_maplsn).AppendLine();
sb.AppendFormat("{0} bytes in allocation bitmap", rbfSb.dd_map).AppendLine();
if (LSNToUInt32(rbfSb.dd_bt) > 0 &&
rbfSb.dd_bsz > 0)
{
sb.AppendFormat("Boot file starts at block {0} and has {1} bytes", LSNToUInt32(rbfSb.dd_bt),
rbfSb.dd_bsz).AppendLine();
}
sb.AppendFormat("Root directory descriptor starts at block {0}", LSNToUInt32(rbfSb.dd_dir)).
AppendLine();
sb.AppendFormat("Disk is owned by user {0}", rbfSb.dd_own).AppendLine();
sb.AppendFormat("Volume was created on {0}", DateHandlers.Os9ToDateTime(rbfSb.dd_dat)).AppendLine();
sb.AppendFormat("Volume attributes: {0:X2}", rbfSb.dd_att).AppendLine();
sb.AppendFormat("Volume name: {0}", StringHandlers.CToString(rbfSb.dd_nam, Encoding)).AppendLine();
sb.AppendFormat("Path descriptor options: {0}", StringHandlers.CToString(rbfSb.dd_opt, Encoding)).
AppendLine();
XmlFsType = new FileSystemType
{
Type = "OS-9 Random Block File",
Bootable = LSNToUInt32(rbfSb.dd_bt) > 0 && rbfSb.dd_bsz > 0,
ClusterSize = (uint)(rbfSb.dd_bit * (256 << rbfSb.dd_lsnsize)),
Clusters = LSNToUInt32(rbfSb.dd_tot),
CreationDate = DateHandlers.Os9ToDateTime(rbfSb.dd_dat),
CreationDateSpecified = true,
VolumeName = StringHandlers.CToString(rbfSb.dd_nam, Encoding),
VolumeSerial = $"{rbfSb.dd_dsk:X4}"
};
}
information = sb.ToString();
}
