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Added RT-11 filesystem.

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Natalia Portillo
2017-08-25 03:02:55 +01:00
parent 60c80a7ac9
commit abc9e8afb4
3 changed files with 238 additions and 1 deletions
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3
DiscImageChef.Filesystems/DiscImageChef.Filesystems.csproj
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@@ -132,6 +132,7 @@
<Compile Include="UNICOS.cs" />
<Compile Include="RBF.cs" />
<Compile Include="AODOS.cs" />
<Compile Include="RT11.cs" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<ItemGroup>
@@ -189,7 +190,7 @@
<Properties>
<Policies>
<TextStylePolicy FileWidth="120" TabWidth="4" IndentWidth="4" RemoveTrailingWhitespace="True" NoTabsAfterNonTabs="False" EolMarker="Native" TabsToSpaces="True" scope="text/x-csharp" />
<CSharpFormattingPolicy IndentBlock="True" IndentBraces="False" IndentSwitchSection="True" IndentSwitchCaseSection="True" LabelPositioning="OneLess" NewLinesForBracesInTypes="True" NewLinesForBracesInMethods="True" NewLinesForBracesInProperties="True" NewLinesForBracesInAccessors="True" NewLinesForBracesInAnonymousMethods="True" NewLinesForBracesInControlBlocks="True" NewLinesForBracesInAnonymousTypes="True" NewLinesForBracesInObjectCollectionArrayInitializers="True" NewLinesForBracesInLambdaExpressionBody="True" NewLineForElse="True" NewLineForCatch="True" NewLineForFinally="True" NewLineForMembersInObjectInit="True" NewLineForMembersInAnonymousTypes="True" NewLineForClausesInQuery="True" SpacingAfterMethodDeclarationName="False" SpaceWithinMethodDeclarationParenthesis="False" SpaceBetweenEmptyMethodDeclarationParentheses="False" SpaceAfterMethodCallName="False" SpaceWithinMethodCallParentheses="False" SpaceBetweenEmptyMethodCallParentheses="False" SpaceWithinExpressionParentheses="False" SpaceWithinCastParentheses="False" SpaceWithinOtherParentheses="False" SpaceAfterCast="False" SpacesIgnoreAroundVariableDeclaration="False" SpaceBeforeOpenSquareBracket="False" SpaceBetweenEmptySquareBrackets="False" SpaceWithinSquareBrackets="False" SpaceAfterColonInBaseTypeDeclaration="True" SpaceAfterComma="True" SpaceAfterDot="False" SpaceAfterSemicolonsInForStatement="True" SpaceBeforeColonInBaseTypeDeclaration="True" SpaceBeforeComma="False" SpaceBeforeDot="False" SpaceBeforeSemicolonsInForStatement="False" SpacingAroundBinaryOperator="Single" WrappingPreserveSingleLine="True" WrappingKeepStatementsOnSingleLine="True" PlaceSystemDirectiveFirst="True" SpaceAfterControlFlowStatementKeyword="False" scope="text/x-csharp" />
<CSharpFormattingPolicy IndentBlock="True" IndentBraces="False" IndentSwitchSection="True" IndentSwitchCaseSection="True" LabelPositioning="OneLess" NewLinesForBracesInTypes="True" NewLinesForBracesInMethods="True" NewLinesForBracesInProperties="True" NewLinesForBracesInAccessors="True" NewLinesForBracesInAnonymousMethods="True" NewLinesForBracesInControlBlocks="True" NewLinesForBracesInAnonymousTypes="True" NewLinesForBracesInObjectCollectionArrayInitializers="True" NewLinesForBracesInLambdaExpressionBody="True" NewLineForElse="True" NewLineForCatch="True" NewLineForFinally="True" NewLineForMembersInObjectInit="True" NewLineForMembersInAnonymousTypes="True" NewLineForClausesInQuery="True" SpacingAfterMethodDeclarationName="False" SpaceWithinMethodDeclarationParenthesis="False" SpaceBetweenEmptyMethodDeclarationParentheses="False" SpaceAfterMethodCallName="False" SpaceWithinMethodCallParentheses="False" SpaceBetweenEmptyMethodCallParentheses="False" SpaceAfterControlFlowStatementKeyword="False" SpaceWithinExpressionParentheses="False" SpaceWithinCastParentheses="False" SpaceWithinOtherParentheses="False" SpaceAfterCast="False" SpacesIgnoreAroundVariableDeclaration="False" SpaceBeforeOpenSquareBracket="False" SpaceBetweenEmptySquareBrackets="False" SpaceWithinSquareBrackets="False" SpaceAfterColonInBaseTypeDeclaration="True" SpaceAfterComma="True" SpaceAfterDot="False" SpaceAfterSemicolonsInForStatement="True" SpaceBeforeColonInBaseTypeDeclaration="True" SpaceBeforeComma="False" SpaceBeforeDot="False" SpaceBeforeSemicolonsInForStatement="False" SpacingAroundBinaryOperator="Single" WrappingPreserveSingleLine="True" WrappingKeepStatementsOnSingleLine="True" PlaceSystemDirectiveFirst="True" scope="text/x-csharp" />
<DotNetNamingPolicy DirectoryNamespaceAssociation="PrefixedHierarchical" ResourceNamePolicy="MSBuild" />
<StandardHeader IncludeInNewFiles="True" Text="/***************************************************************************&#xA;The Disc Image Chef&#xA;----------------------------------------------------------------------------&#xA; &#xA;Filename : ${FileName}&#xA;Author(s) : ${AuthorName} &lt;${AuthorEmail}&gt;&#xA;&#xA;Component : Component&#xA; &#xA;--[ Description ] ----------------------------------------------------------&#xA; &#xA; Description&#xA; &#xA;--[ License ] --------------------------------------------------------------&#xA; &#xA; This library is free software; you can redistribute it and/or modify&#xA; it under the terms of the GNU Lesser General Public License as&#xA; published by the Free Software Foundation; either version 2.1 of the&#xA; License, or (at your option) any later version.&#xA;&#xA; This library is distributed in the hope that it will be useful, but&#xA; WITHOUT ANY WARRANTY; without even the implied warranty of&#xA; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU&#xA; Lesser General Public License for more details.&#xA;&#xA; You should have received a copy of the GNU Lesser General Public&#xA; License along with this library; if not, see &lt;http://www.gnu.org/licenses/&gt;.&#xA;&#xA;----------------------------------------------------------------------------&#xA;Copyright © 2011-${Year} ${CopyrightHolder}&#xA;****************************************************************************/" />
</Policies>

235
DiscImageChef.Filesystems/RT11.cs Normal file
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@@ -0,0 +1,235 @@
// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : RT11.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : RT-11 file system plugin.
//
// --[ Description ] ----------------------------------------------------------
//
// Identifies the RT-11 file system 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 <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2017 Natalia Portillo
// ****************************************************************************/
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
using DiscImageChef.CommonTypes;
namespace DiscImageChef.Filesystems
{
// Information from http://www.trailing-edge.com/~shoppa/rt11fs/
// TODO: Implement Radix-50
public class RT11 : Filesystem
{
public RT11()
{
Name = "RT-11 file system";
PluginUUID = new Guid("DB3E2F98-8F98-463C-8126-E937843DA024");
CurrentEncoding = Encoding.GetEncoding("iso-8859-1");
}
public RT11(ImagePlugins.ImagePlugin imagePlugin, Partition partition, Encoding encoding)
{
Name = "RT-11 file system";
PluginUUID = new Guid("DB3E2F98-8F98-463C-8126-E937843DA024");
if(encoding == null)
CurrentEncoding = Encoding.GetEncoding("iso-8859-1");
else
CurrentEncoding = encoding;
}
public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, Partition partition)
{
if((1 + partition.Start) >= partition.End)
return false;
if(imagePlugin.GetSectorSize() < 512)
return false;
byte[] magic_b = new byte[12];
string magic;
byte[] hb_sector = imagePlugin.ReadSector(1 + partition.Start);
Array.Copy(hb_sector, 0x1F0, magic_b, 0, 12);
magic = Encoding.ASCII.GetString(magic_b);
return magic == "DECRT11A ";
}
public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, Partition partition, out string information)
{
information = "";
StringBuilder sb = new StringBuilder();
RT11HomeBlock homeblock = new RT11HomeBlock();
byte[] hb_sector = imagePlugin.ReadSector(1 + partition.Start);
GCHandle handle = GCHandle.Alloc(hb_sector, GCHandleType.Pinned);
homeblock = (RT11HomeBlock)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(RT11HomeBlock));
handle.Free();
/* TODO: Is this correct?
* Assembler:
* MOV address, R0
* CLR R1
* MOV #255., R2
* 10$: ADD (R0)+, R1
* SOB R2, 10$
* MOV 1,@R0
*/
ushort check = 0;
for(int i = 0; i < 512; i += 2)
check += BitConverter.ToUInt16(hb_sector, i);
sb.AppendFormat("Volume format is {0}", StringHandlers.SpacePaddedToString(homeblock.format, CurrentEncoding)).AppendLine();
sb.AppendFormat("{0} sectors per cluster ({1} bytes)", homeblock.cluster, homeblock.cluster * 512).AppendLine();
sb.AppendFormat("First directory segment starts at block {0}", homeblock.rootBlock).AppendLine();
sb.AppendFormat("Volume owner is \"{0}\"", StringHandlers.SpacePaddedToString(homeblock.ownername, CurrentEncoding)).AppendLine();
sb.AppendFormat("Volume label: \"{0}\"", StringHandlers.SpacePaddedToString(homeblock.volname, CurrentEncoding)).AppendLine();
sb.AppendFormat("Checksum: 0x{0:X4} (calculated 0x{1:X4})", homeblock.checksum, check).AppendLine();
byte[] bootBlock = imagePlugin.ReadSector(0);
xmlFSType = new Schemas.FileSystemType
{
Type = "RT-11",
ClusterSize = homeblock.cluster * 512,
Clusters = homeblock.cluster,
VolumeName = StringHandlers.SpacePaddedToString(homeblock.volname, CurrentEncoding),
Bootable = !ArrayHelpers.ArrayIsNullOrEmpty(bootBlock)
};
information = sb.ToString();
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct RT11HomeBlock
{
/// <summary>Bad block replacement table</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 130)]
public byte[] badBlockTable;
/// <summary>Unused</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public byte[] unused;
/// <summary>INITIALIZE/RESTORE data area</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 38)]
public byte[] initArea;
/// <summary>BUP information area</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 18)]
public byte[] bupInformation;
/// <summary>Empty</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 260)]
public byte[] empty;
/// <summary>Reserved</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public byte[] reserved1;
/// <summary>Reserved</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public byte[] reserved2;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 14)]
public byte[] empty2;
/// <summary>Cluster size</summary>
public ushort cluster;
/// <summary>Block of the first directory segment</summary>
public ushort rootBlock;
/// <summary>"V3A" in Radix-50</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public byte[] systemVersion;
/// <summary>Name of the volume, 12 bytes</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 12)]
public byte[] volname;
/// <summary>Name of the volume owner, 12 bytes</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 12)]
public byte[] ownername;
/// <summary>RT11 defines it as "DECRT11A ", 12 bytes</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 12)]
public byte[] format;
/// <summary>Unused</summary>
public ushort unused2;
/// <summary>Checksum of preceding 255 words (16 bit units)</summary>
public ushort checksum;
}
public override Errno Mount()
{
return Errno.NotImplemented;
}
public override Errno Mount(bool debug)
{
return Errno.NotImplemented;
}
public override Errno Unmount()
{
return Errno.NotImplemented;
}
public override Errno MapBlock(string path, long fileBlock, ref long deviceBlock)
{
return Errno.NotImplemented;
}
public override Errno GetAttributes(string path, ref FileAttributes attributes)
{
return Errno.NotImplemented;
}
public override Errno ListXAttr(string path, ref List<string> xattrs)
{
return Errno.NotImplemented;
}
public override Errno GetXattr(string path, string xattr, ref byte[] buf)
{
return Errno.NotImplemented;
}
public override Errno Read(string path, long offset, long size, ref byte[] buf)
{
return Errno.NotImplemented;
}
public override Errno ReadDir(string path, ref List<string> contents)
{
return Errno.NotImplemented;
}
public override Errno StatFs(ref FileSystemInfo stat)
{
return Errno.NotImplemented;
}
public override Errno Stat(string path, ref FileEntryInfo stat)
{
return Errno.NotImplemented;
}
public override Errno ReadLink(string path, ref string dest)
{
return Errno.NotImplemented;
}
}
}

1
README.md
View File

@@ -128,6 +128,7 @@ Supported file systems for identification and information only
* Coherent UNIX file system
* Commodore 1540/1541/1571/1581 filesystems
* Cram file system
* DEC RT-11 file system
* DEC Files-11 (only checked with On Disk Structure 2, ODS-2)
* ECMA-67: 130mm Flexible Disk Cartridge Labelling and File Structure for Information Interchange
* Flash-Friendly File System (F2FS)