aaru-dps/Aaru
1
0
Fork 0
mirror of https://github.com/aaru-dps/Aaru.git synced 2025-12-16 19:24:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

* FileSystemIDandChk/Plugins/LisaFS.cs:

Browse Source 
* FileSystemIDandChk/FileSystemIDandChk.csproj:
	  Added LisaFS skeleton with Lisa's MDDF and tag structs

	* FileSystemIDandChk/DateHandlers.cs:
	  Added convert function from Lisa timestamp fields to C#
	  DateTime

git-svn-id: svn://claunia.com/FileSystemIDandChk@34 17725271-3d32-4980-a8cb-9ff532f270ba
This commit is contained in:
Natalia Portillo
2014-04-17 03:45:02 +00:00
parent 1dfda680a8
commit 1724edbcc6
4 changed files with 155 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
FileSystemIDandChk/ChangeLog
View File

@@ -1,3 +1,13 @@
2014-04-17 Natalia Portillo <claunia@claunia.com>
* Plugins/LisaFS.cs:
* FileSystemIDandChk.csproj:
Added LisaFS skeleton with Lisa's MDDF and tag structs
* DateHandlers.cs:
Added convert function from Lisa timestamp fields to C#
DateTime
2014-04-17 Natalia Portillo <claunia@claunia.com>
* ImagePlugins/DiskCopy42.cs:

10
FileSystemIDandChk/DateHandlers.cs
View File

@@ -4,15 +4,22 @@ namespace FileSystemIDandChk
{
public static class DateHandlers
{
static readonly DateTime LisaEpoch = new DateTime(1904, 1, 1, 0, 0, 0);
static readonly DateTime MacEpoch = new DateTime(1904, 1, 1, 0, 0, 0);
static readonly DateTime UNIXEpoch = new DateTime(1970, 1, 1, 0, 0, 0);
static readonly DateTime JulianEpoch = new DateTime(1858, 11, 17, 0, 0, 0);
// Day 0 of Julian Date system
static readonly DateTime JulianEpoch = new DateTime(1858, 11, 17, 0, 0, 0);
public static DateTime MacToDateTime(ulong MacTimeStamp)
{
return MacEpoch.AddTicks((long)(MacTimeStamp * 10000000));
}
public static DateTime LisaToDateTime(Int32 LisaTimeStamp)
{
return LisaEpoch.AddSeconds(LisaTimeStamp);
}
public static DateTime UNIXToDateTime(Int32 UNIXTimeStamp)
{
return UNIXEpoch.AddSeconds(UNIXTimeStamp);
@@ -93,6 +100,7 @@ namespace FileSystemIDandChk
return decodedDT;
}
// C# works in UTC, VMS on Julian Date, some displacement may occur on disks created outside UTC
public static DateTime VMSToDateTime(UInt64 vmsDate)
{

1
FileSystemIDandChk/FileSystemIDandChk.csproj
View File

@@ -71,6 +71,7 @@
<Compile Include="ImagePlugins\CDRWin.cs" />
<Compile Include="BigEndianBitConverter.cs" />
<Compile Include="ImagePlugins\DiskCopy42.cs" />
<Compile Include="Plugins\LisaFS.cs" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<ItemGroup>

135
FileSystemIDandChk/Plugins/LisaFS.cs Normal file
View File

@@ -0,0 +1,135 @@
using System;
using System.Text;
using FileSystemIDandChk;
// Information from Inside Macintosh
namespace FileSystemIDandChk.Plugins
{
class LisaFS : Plugin
{
const byte LisaFSv1 = 0x0E;
const byte LisaFSv2 = 0x0F;
const byte LisaFSv3 = 0x11;
const uint E_NAME = 32;
// Maximum string size in LisaFS
const UInt16 FILEID_FREE = 0x0000;
const UInt16 FILEID_BOOT = 0xAAAA;
const UInt16 FILEID_LOADER = 0xBBBB;
const UInt16 FILEID_MDDF = 0x0001;
const UInt16 FILEID_BITMAP = 0x0002;
const UInt16 FILEID_SRECORD = 0x0003;
const UInt16 FILEID_DIRECTORY = 0x0004;
// "Catalog file"
const UInt16 FILEID_ERASED = 0x7FFF;
const UInt16 FILEID_MAX = FILEID_ERASED;
public LisaFS(PluginBase Core)
{
Name = "Apple Lisa File System";
PluginUUID = new Guid("7E6034D1-D823-4248-A54D-239742B28391");
}
public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
{
return false;
}
public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset, out string information)
{
information = "";
return;
/* information = sb.ToString();
return; */
}
struct Lisa_MDDF
{
// Lisa serial number that init'ed this disk
public UInt32 machine_id;
// Return code of Scavenger
public UInt32 result_scavenge;
// Is password present?
public byte passwd_present;
// Filesystem size in blocks
public UInt32 fs_size;
// Volume size in blocks
public UInt32 vol_size;
// Opened files (memory-only?(
public UInt32 opencount;
// Pascal string, 32+1 bytes, volume name
public string volname;
// Pascal string, 32+1 bytes, password
public string password;
// Filesystem version
public UInt16 fsversion;
// Volume sequence number
public UInt16 volnum;
// Volume ID
public UInt64 volid;
// ID of volume where this volume was backed up
public UInt64 backup_volid;
// Total volumes in sequence
public UInt16 vol_sequence;
// Blocks size of underlying drive (data+tags)
public UInt16 blocksize;
// Data only block size
public UInt16 datasize;
// Size of filesystem clusters
public UInt16 clustersize;
// Files in volume
public UInt16 filecount;
// Size of LisaInfo label
public UInt16 label_size;
// Free blocks
public UInt32 freecount;
// Date of volume creation
public DateTime dtvc;
// Date...
public DateTime dtcc;
// Date of volume backup
public DateTime dtvb;
// Date of volume scavenging
public DateTime dtvs;
// Lisa serial number allowed to use this disk
public UInt32 master_copy_id;
// No idea
public UInt32 copy_thread;
// No idea
public UInt64 overmount_stamp;
// No idea
public UInt16 boot_code;
// No idea
public UInt16 boot_environ;
// Flags are boolean, but Pascal seems to use them as full unsigned 8 bit values
// No idea
public byte privileged;
// Read-only volume
public byte write_protected;
// Master disk
public byte master;
// Copy disk
public byte copy;
// No idea
public byte copy_flag;
// No idea
public byte scavenge_flag;
// Volume is dirty?
public byte vol_left_mounted;
}
struct Lisa_Tag
{
public UInt32 unknown1;
// 0x00 Unknown
public UInt16 fileID;
// 0x04 File ID
public UInt16 unknown2;
// 0x06 Unknown
public UInt32 unknown3;
// 0x08 Unknown
}
}
}