// /*************************************************************************** // The Disc Image Chef // ---------------------------------------------------------------------------- // // Filename : Info.cs // Author(s) : Natalia Portillo // // Component : Apple Lisa filesystem plugin. // // --[ Description ] ---------------------------------------------------------- // // Identifies the Apple Lisa filesystem and shows information. // // --[ License ] -------------------------------------------------------------- // // This library is free software; you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as // published by the Free Software Foundation; either version 2.1 of the // License, or (at your option) any later version. // // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, see . // // ---------------------------------------------------------------------------- // Copyright © 2011-2018 Natalia Portillo // ****************************************************************************/ using System; using System.Text; using Claunia.Encoding; using DiscImageChef.CommonTypes; using DiscImageChef.Console; using DiscImageChef.Decoders; using DiscImageChef.DiscImages; using Schemas; using Encoding = System.Text.Encoding; namespace DiscImageChef.Filesystems.LisaFS { public partial class LisaFS { public bool Identify(IMediaImage imagePlugin, Partition partition) { try { if(imagePlugin.Info.ReadableSectorTags == null) return false; if(!imagePlugin.Info.ReadableSectorTags.Contains(SectorTagType.AppleSectorTag)) return false; // LisaOS is big-endian BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian; // Minimal LisaOS disk is 3.5" single sided double density, 800 sectors if(imagePlugin.Info.Sectors < 800) return false; int beforeMddf = -1; // LisaOS searches sectors until tag tells MDDF resides there, so we'll search 100 sectors for(int i = 0; i < 100; i++) { DecodeTag(imagePlugin.ReadSectorTag((ulong)i, SectorTagType.AppleSectorTag), out LisaTag.PriamTag searchTag); DicConsole.DebugWriteLine("LisaFS plugin", "Sector {0}, file ID 0x{1:X4}", i, searchTag.FileId); if(beforeMddf == -1 && searchTag.FileId == FILEID_LOADER_SIGNED) beforeMddf = i - 1; if(searchTag.FileId != FILEID_MDDF) continue; byte[] sector = imagePlugin.ReadSector((ulong)i); MDDF infoMddf = new MDDF { mddf_block = BigEndianBitConverter.ToUInt32(sector, 0x6C), volsize_minus_one = BigEndianBitConverter.ToUInt32(sector, 0x70), volsize_minus_mddf_minus_one = BigEndianBitConverter.ToUInt32(sector, 0x74), vol_size = BigEndianBitConverter.ToUInt32(sector, 0x78), blocksize = BigEndianBitConverter.ToUInt16(sector, 0x7C), datasize = BigEndianBitConverter.ToUInt16(sector, 0x7E) }; DicConsole.DebugWriteLine("LisaFS plugin", "Current sector = {0}", i); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.mddf_block = {0}", infoMddf.mddf_block); DicConsole.DebugWriteLine("LisaFS plugin", "Disk size = {0} sectors", imagePlugin.Info.Sectors); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.vol_size = {0} sectors", infoMddf.vol_size); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.vol_size - 1 = {0}", infoMddf.volsize_minus_one); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.vol_size - mddf.mddf_block -1 = {0}", infoMddf.volsize_minus_mddf_minus_one); DicConsole.DebugWriteLine("LisaFS plugin", "Disk sector = {0} bytes", imagePlugin.Info.SectorSize); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.blocksize = {0} bytes", infoMddf.blocksize); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.datasize = {0} bytes", infoMddf.datasize); if(infoMddf.mddf_block != i - beforeMddf) return false; if(infoMddf.vol_size > imagePlugin.Info.Sectors) return false; if(infoMddf.vol_size - 1 != infoMddf.volsize_minus_one) return false; if(infoMddf.vol_size - i - 1 != infoMddf.volsize_minus_mddf_minus_one - beforeMddf) return false; if(infoMddf.datasize > infoMddf.blocksize) return false; if(infoMddf.blocksize < imagePlugin.Info.SectorSize) return false; return infoMddf.datasize == imagePlugin.Info.SectorSize; } return false; } catch(Exception ex) { DicConsole.ErrorWriteLine("Exception {0}, {1}, {2}", ex.Message, ex.InnerException, ex.StackTrace); return false; } } public void GetInformation(IMediaImage imagePlugin, Partition partition, out string information, Encoding encoding) { Encoding = new LisaRoman(); information = ""; StringBuilder sb = new StringBuilder(); try { if(imagePlugin.Info.ReadableSectorTags == null) return; if(!imagePlugin.Info.ReadableSectorTags.Contains(SectorTagType.AppleSectorTag)) return; // LisaOS is big-endian BigEndianBitConverter.IsLittleEndian = BitConverter.IsLittleEndian; // Minimal LisaOS disk is 3.5" single sided double density, 800 sectors if(imagePlugin.Info.Sectors < 800) return; int beforeMddf = -1; // LisaOS searches sectors until tag tells MDDF resides there, so we'll search 100 sectors for(int i = 0; i < 100; i++) { DecodeTag(imagePlugin.ReadSectorTag((ulong)i, SectorTagType.AppleSectorTag), out LisaTag.PriamTag searchTag); DicConsole.DebugWriteLine("LisaFS plugin", "Sector {0}, file ID 0x{1:X4}", i, searchTag.FileId); if(beforeMddf == -1 && searchTag.FileId == FILEID_LOADER_SIGNED) beforeMddf = i - 1; if(searchTag.FileId != FILEID_MDDF) continue; byte[] sector = imagePlugin.ReadSector((ulong)i); MDDF infoMddf = new MDDF(); byte[] pString = new byte[33]; infoMddf.fsversion = BigEndianBitConverter.ToUInt16(sector, 0x00); infoMddf.volid = BigEndianBitConverter.ToUInt64(sector, 0x02); infoMddf.volnum = BigEndianBitConverter.ToUInt16(sector, 0x0A); Array.Copy(sector, 0x0C, pString, 0, 33); infoMddf.volname = StringHandlers.PascalToString(pString, Encoding); infoMddf.unknown1 = sector[0x2D]; Array.Copy(sector, 0x2E, pString, 0, 33); // Prevent garbage infoMddf.password = pString[0] <= 32 ? StringHandlers.PascalToString(pString, Encoding) : ""; infoMddf.unknown2 = sector[0x4F]; infoMddf.machine_id = BigEndianBitConverter.ToUInt32(sector, 0x50); infoMddf.master_copy_id = BigEndianBitConverter.ToUInt32(sector, 0x54); uint lisaTime = BigEndianBitConverter.ToUInt32(sector, 0x58); infoMddf.dtvc = DateHandlers.LisaToDateTime(lisaTime); lisaTime = BigEndianBitConverter.ToUInt32(sector, 0x5C); infoMddf.dtcc = DateHandlers.LisaToDateTime(lisaTime); lisaTime = BigEndianBitConverter.ToUInt32(sector, 0x60); infoMddf.dtvb = DateHandlers.LisaToDateTime(lisaTime); lisaTime = BigEndianBitConverter.ToUInt32(sector, 0x64); infoMddf.dtvs = DateHandlers.LisaToDateTime(lisaTime); infoMddf.unknown3 = BigEndianBitConverter.ToUInt32(sector, 0x68); infoMddf.mddf_block = BigEndianBitConverter.ToUInt32(sector, 0x6C); infoMddf.volsize_minus_one = BigEndianBitConverter.ToUInt32(sector, 0x70); infoMddf.volsize_minus_mddf_minus_one = BigEndianBitConverter.ToUInt32(sector, 0x74); infoMddf.vol_size = BigEndianBitConverter.ToUInt32(sector, 0x78); infoMddf.blocksize = BigEndianBitConverter.ToUInt16(sector, 0x7C); infoMddf.datasize = BigEndianBitConverter.ToUInt16(sector, 0x7E); infoMddf.unknown4 = BigEndianBitConverter.ToUInt16(sector, 0x80); infoMddf.unknown5 = BigEndianBitConverter.ToUInt32(sector, 0x82); infoMddf.unknown6 = BigEndianBitConverter.ToUInt32(sector, 0x86); infoMddf.clustersize = BigEndianBitConverter.ToUInt16(sector, 0x8A); infoMddf.fs_size = BigEndianBitConverter.ToUInt32(sector, 0x8C); infoMddf.unknown7 = BigEndianBitConverter.ToUInt32(sector, 0x90); infoMddf.srec_ptr = BigEndianBitConverter.ToUInt32(sector, 0x94); infoMddf.unknown9 = BigEndianBitConverter.ToUInt16(sector, 0x98); infoMddf.srec_len = BigEndianBitConverter.ToUInt16(sector, 0x9A); infoMddf.unknown10 = BigEndianBitConverter.ToUInt32(sector, 0x9C); infoMddf.unknown11 = BigEndianBitConverter.ToUInt32(sector, 0xA0); infoMddf.unknown12 = BigEndianBitConverter.ToUInt32(sector, 0xA4); infoMddf.unknown13 = BigEndianBitConverter.ToUInt32(sector, 0xA8); infoMddf.unknown14 = BigEndianBitConverter.ToUInt32(sector, 0xAC); infoMddf.filecount = BigEndianBitConverter.ToUInt16(sector, 0xB0); infoMddf.unknown15 = BigEndianBitConverter.ToUInt32(sector, 0xB2); infoMddf.unknown16 = BigEndianBitConverter.ToUInt32(sector, 0xB6); infoMddf.freecount = BigEndianBitConverter.ToUInt32(sector, 0xBA); infoMddf.unknown17 = BigEndianBitConverter.ToUInt16(sector, 0xBE); infoMddf.unknown18 = BigEndianBitConverter.ToUInt32(sector, 0xC0); infoMddf.overmount_stamp = BigEndianBitConverter.ToUInt64(sector, 0xC4); infoMddf.serialization = BigEndianBitConverter.ToUInt32(sector, 0xCC); infoMddf.unknown19 = BigEndianBitConverter.ToUInt32(sector, 0xD0); infoMddf.unknown_timestamp = BigEndianBitConverter.ToUInt32(sector, 0xD4); infoMddf.unknown20 = BigEndianBitConverter.ToUInt32(sector, 0xD8); infoMddf.unknown21 = BigEndianBitConverter.ToUInt32(sector, 0xDC); infoMddf.unknown22 = BigEndianBitConverter.ToUInt32(sector, 0xE0); infoMddf.unknown23 = BigEndianBitConverter.ToUInt32(sector, 0xE4); infoMddf.unknown24 = BigEndianBitConverter.ToUInt32(sector, 0xE8); infoMddf.unknown25 = BigEndianBitConverter.ToUInt32(sector, 0xEC); infoMddf.unknown26 = BigEndianBitConverter.ToUInt32(sector, 0xF0); infoMddf.unknown27 = BigEndianBitConverter.ToUInt32(sector, 0xF4); infoMddf.unknown28 = BigEndianBitConverter.ToUInt32(sector, 0xF8); infoMddf.unknown29 = BigEndianBitConverter.ToUInt32(sector, 0xFC); infoMddf.unknown30 = BigEndianBitConverter.ToUInt32(sector, 0x100); infoMddf.unknown31 = BigEndianBitConverter.ToUInt32(sector, 0x104); infoMddf.unknown32 = BigEndianBitConverter.ToUInt32(sector, 0x108); infoMddf.unknown33 = BigEndianBitConverter.ToUInt32(sector, 0x10C); infoMddf.unknown34 = BigEndianBitConverter.ToUInt32(sector, 0x110); infoMddf.unknown35 = BigEndianBitConverter.ToUInt32(sector, 0x114); infoMddf.backup_volid = BigEndianBitConverter.ToUInt64(sector, 0x118); infoMddf.label_size = BigEndianBitConverter.ToUInt16(sector, 0x120); infoMddf.fs_overhead = BigEndianBitConverter.ToUInt16(sector, 0x122); infoMddf.result_scavenge = BigEndianBitConverter.ToUInt16(sector, 0x124); infoMddf.boot_code = BigEndianBitConverter.ToUInt16(sector, 0x126); infoMddf.boot_environ = BigEndianBitConverter.ToUInt16(sector, 0x6C); infoMddf.unknown36 = BigEndianBitConverter.ToUInt32(sector, 0x12A); infoMddf.unknown37 = BigEndianBitConverter.ToUInt32(sector, 0x12E); infoMddf.unknown38 = BigEndianBitConverter.ToUInt32(sector, 0x132); infoMddf.vol_sequence = BigEndianBitConverter.ToUInt16(sector, 0x136); infoMddf.vol_left_mounted = sector[0x138]; DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown1 = 0x{0:X2} ({0})", infoMddf.unknown1); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown2 = 0x{0:X2} ({0})", infoMddf.unknown2); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown3 = 0x{0:X8} ({0})", infoMddf.unknown3); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown4 = 0x{0:X4} ({0})", infoMddf.unknown4); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown5 = 0x{0:X8} ({0})", infoMddf.unknown5); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown6 = 0x{0:X8} ({0})", infoMddf.unknown6); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown7 = 0x{0:X8} ({0})", infoMddf.unknown7); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown9 = 0x{0:X4} ({0})", infoMddf.unknown9); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown10 = 0x{0:X8} ({0})", infoMddf.unknown10); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown11 = 0x{0:X8} ({0})", infoMddf.unknown11); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown12 = 0x{0:X8} ({0})", infoMddf.unknown12); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown13 = 0x{0:X8} ({0})", infoMddf.unknown13); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown14 = 0x{0:X8} ({0})", infoMddf.unknown14); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown15 = 0x{0:X8} ({0})", infoMddf.unknown15); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown16 = 0x{0:X8} ({0})", infoMddf.unknown16); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown17 = 0x{0:X4} ({0})", infoMddf.unknown17); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown18 = 0x{0:X8} ({0})", infoMddf.unknown18); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown19 = 0x{0:X8} ({0})", infoMddf.unknown19); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown20 = 0x{0:X8} ({0})", infoMddf.unknown20); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown21 = 0x{0:X8} ({0})", infoMddf.unknown21); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown22 = 0x{0:X8} ({0})", infoMddf.unknown22); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown23 = 0x{0:X8} ({0})", infoMddf.unknown23); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown24 = 0x{0:X8} ({0})", infoMddf.unknown24); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown25 = 0x{0:X8} ({0})", infoMddf.unknown25); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown26 = 0x{0:X8} ({0})", infoMddf.unknown26); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown27 = 0x{0:X8} ({0})", infoMddf.unknown27); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown28 = 0x{0:X8} ({0})", infoMddf.unknown28); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown29 = 0x{0:X8} ({0})", infoMddf.unknown29); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown30 = 0x{0:X8} ({0})", infoMddf.unknown30); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown31 = 0x{0:X8} ({0})", infoMddf.unknown31); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown32 = 0x{0:X8} ({0})", infoMddf.unknown32); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown33 = 0x{0:X8} ({0})", infoMddf.unknown33); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown34 = 0x{0:X8} ({0})", infoMddf.unknown34); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown35 = 0x{0:X8} ({0})", infoMddf.unknown35); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown36 = 0x{0:X8} ({0})", infoMddf.unknown36); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown37 = 0x{0:X8} ({0})", infoMddf.unknown37); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown38 = 0x{0:X8} ({0})", infoMddf.unknown38); DicConsole.DebugWriteLine("LisaFS plugin", "mddf.unknown_timestamp = 0x{0:X8} ({0}, {1})", infoMddf.unknown_timestamp, DateHandlers.LisaToDateTime(infoMddf.unknown_timestamp)); if(infoMddf.mddf_block != i - beforeMddf) return; if(infoMddf.vol_size > imagePlugin.Info.Sectors) return; if(infoMddf.vol_size - 1 != infoMddf.volsize_minus_one) return; if(infoMddf.vol_size - i - 1 != infoMddf.volsize_minus_mddf_minus_one - beforeMddf) return; if(infoMddf.datasize > infoMddf.blocksize) return; if(infoMddf.blocksize < imagePlugin.Info.SectorSize) return; if(infoMddf.datasize != imagePlugin.Info.SectorSize) return; switch(infoMddf.fsversion) { case LISA_V1: sb.AppendLine("LisaFS v1"); break; case LISA_V2: sb.AppendLine("LisaFS v2"); break; case LISA_V3: sb.AppendLine("LisaFS v3"); break; default: sb.AppendFormat("Uknown LisaFS version {0}", infoMddf.fsversion).AppendLine(); break; } sb.AppendFormat("Volume name: \"{0}\"", infoMddf.volname).AppendLine(); sb.AppendFormat("Volume password: \"{0}\"", infoMddf.password).AppendLine(); sb.AppendFormat("Volume ID: 0x{0:X16}", infoMddf.volid).AppendLine(); sb.AppendFormat("Backup volume ID: 0x{0:X16}", infoMddf.backup_volid).AppendLine(); sb.AppendFormat("Master copy ID: 0x{0:X8}", infoMddf.master_copy_id).AppendLine(); sb.AppendFormat("Volume is number {0} of {1}", infoMddf.volnum, infoMddf.vol_sequence).AppendLine(); sb.AppendFormat("Serial number of Lisa computer that created this volume: {0}", infoMddf.machine_id) .AppendLine(); sb.AppendFormat("Serial number of Lisa computer that can use this volume's software {0}", infoMddf.serialization).AppendLine(); sb.AppendFormat("Volume created on {0}", infoMddf.dtvc).AppendLine(); sb.AppendFormat("Some timestamp, says {0}", infoMddf.dtcc).AppendLine(); sb.AppendFormat("Volume backed up on {0}", infoMddf.dtvb).AppendLine(); sb.AppendFormat("Volume scavenged on {0}", infoMddf.dtvs).AppendLine(); sb.AppendFormat("MDDF is in block {0}", infoMddf.mddf_block + beforeMddf).AppendLine(); sb.AppendFormat("There are {0} reserved blocks before volume", beforeMddf).AppendLine(); sb.AppendFormat("{0} blocks minus one", infoMddf.volsize_minus_one).AppendLine(); sb.AppendFormat("{0} blocks minus one minus MDDF offset", infoMddf.volsize_minus_mddf_minus_one) .AppendLine(); sb.AppendFormat("{0} blocks in volume", infoMddf.vol_size).AppendLine(); sb.AppendFormat("{0} bytes per sector (uncooked)", infoMddf.blocksize).AppendLine(); sb.AppendFormat("{0} bytes per sector", infoMddf.datasize).AppendLine(); sb.AppendFormat("{0} blocks per cluster", infoMddf.clustersize).AppendLine(); sb.AppendFormat("{0} blocks in filesystem", infoMddf.fs_size).AppendLine(); sb.AppendFormat("{0} files in volume", infoMddf.filecount).AppendLine(); sb.AppendFormat("{0} blocks free", infoMddf.freecount).AppendLine(); sb.AppendFormat("{0} bytes in LisaInfo", infoMddf.label_size).AppendLine(); sb.AppendFormat("Filesystem overhead: {0}", infoMddf.fs_overhead).AppendLine(); sb.AppendFormat("Scanvenger result code: 0x{0:X8}", infoMddf.result_scavenge).AppendLine(); sb.AppendFormat("Boot code: 0x{0:X8}", infoMddf.boot_code).AppendLine(); sb.AppendFormat("Boot environment: 0x{0:X8}", infoMddf.boot_environ).AppendLine(); sb.AppendFormat("Overmount stamp: 0x{0:X16}", infoMddf.overmount_stamp).AppendLine(); sb.AppendFormat("S-Records start at {0} and spans for {1} blocks", infoMddf.srec_ptr + infoMddf.mddf_block + beforeMddf, infoMddf.srec_len) .AppendLine(); sb.AppendLine(infoMddf.vol_left_mounted == 0 ? "Volume is clean" : "Volume is dirty"); information = sb.ToString(); XmlFsType = new FileSystemType(); if(DateTime.Compare(infoMddf.dtvb, DateHandlers.LisaToDateTime(0)) > 0) { XmlFsType.BackupDate = infoMddf.dtvb; XmlFsType.BackupDateSpecified = true; } XmlFsType.Clusters = infoMddf.vol_size; XmlFsType.ClusterSize = infoMddf.clustersize * infoMddf.datasize; if(DateTime.Compare(infoMddf.dtvc, DateHandlers.LisaToDateTime(0)) > 0) { XmlFsType.CreationDate = infoMddf.dtvc; XmlFsType.CreationDateSpecified = true; } XmlFsType.Dirty = infoMddf.vol_left_mounted != 0; XmlFsType.Files = infoMddf.filecount; XmlFsType.FilesSpecified = true; XmlFsType.FreeClusters = infoMddf.freecount; XmlFsType.FreeClustersSpecified = true; XmlFsType.Type = "LisaFS"; XmlFsType.VolumeName = infoMddf.volname; XmlFsType.VolumeSerial = $"{infoMddf.volid:X16}"; return; } } catch(Exception ex) { DicConsole.ErrorWriteLine("Exception {0}, {1}, {2}", ex.Message, ex.InnerException, ex.StackTrace); } } } }