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Aaru/DiscImageChef.Filesystems/QNX4.cs

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Refactor, pass whole partition structure to filesystems.
2017-07-19 16:31:08 +01:00
// /***************************************************************************
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// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : QNX4.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
REFACTOR: Updated comments and copyright date.
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// Component : QNX4 filesystem plugin.
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//
// --[ Description ] ----------------------------------------------------------
//
Adds support for QNX6 filesystem, closes #18.
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// Identifies the QNX4 filesystem and shows information.
Adds support for QNX4 filesystem. #18
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//
// --[ 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/>.
//
// ----------------------------------------------------------------------------
REFACTOR: Updated comments and copyright date.
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// Copyright © 2011-2018 Natalia Portillo
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// ****************************************************************************/
using System;
using System.Collections.Generic;
using System.Linq;
Adds support for QNX6 filesystem, closes #18.
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using System.Runtime.InteropServices;
Added support for different character encodings.
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using System.Text;
Refactor, pass whole partition structure to filesystems.
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using DiscImageChef.CommonTypes;
REFACTOR: Remove unneeded code.
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using DiscImageChef.DiscImages;
using Schemas;
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namespace DiscImageChef.Filesystems
{
🎨Converted all plugin types to interfaces.
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public class QNX4 : IFilesystem
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{
REFACTOR: Reformat code.
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readonly byte[] QNX4_RootDir_Fname =
{0x2F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
Adds support for QNX4 filesystem. #18
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🎨Converted all plugin types to interfaces.
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Encoding currentEncoding;
FileSystemType xmlFsType;
public virtual FileSystemType XmlFsType => xmlFsType;
public virtual Encoding Encoding => currentEncoding;
public virtual string Name => "QNX4 Plugin";
public virtual Guid Id => new Guid("E73A63FA-B5B0-48BF-BF82-DA5F0A8170D2");
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🎨Converted all plugin types to interfaces.
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public virtual bool Identify(IMediaImage imagePlugin, Partition partition)
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{
🎨Converted all plugin types to interfaces.
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if(partition.Start + 1 >= imagePlugin.Info.Sectors) return false;
Added bound checks.
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Refactor: Simplify field names.
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byte[] sector = imagePlugin.ReadSector(partition.Start + 1);
REFACTOR: Reformat code.
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if(sector.Length < 512) return false;
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IntPtr sbPtr = Marshal.AllocHGlobal(512);
Marshal.Copy(sector, 0, sbPtr, 512);
REFACTOR: All refactor in DiscImageChef.Filesystems.
2017-12-22 08:43:22 +00:00
QNX4_Superblock qnxSb = (QNX4_Superblock)Marshal.PtrToStructure(sbPtr, typeof(QNX4_Superblock));
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Marshal.FreeHGlobal(sbPtr);
// Check root directory name
REFACTOR: Reformat code.
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if(!QNX4_RootDir_Fname.SequenceEqual(qnxSb.rootDir.di_fname)) return false;
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// Check sizes are multiple of blocks
REFACTOR: Reformat code.
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if(qnxSb.rootDir.di_size % 512 != 0 || qnxSb.inode.di_size % 512 != 0 || qnxSb.boot.di_size % 512 != 0 ||
qnxSb.altBoot.di_size % 512 != 0) return false;
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// Check extents are not past device
Refactor: Simplify field names.
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if(qnxSb.rootDir.di_first_xtnt.block + partition.Start >= partition.End ||
qnxSb.inode.di_first_xtnt.block + partition.Start >= partition.End ||
qnxSb.boot.di_first_xtnt.block + partition.Start >= partition.End ||
REFACTOR: Reformat code.
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qnxSb.altBoot.di_first_xtnt.block + partition.Start >= partition.End) return false;
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// Check inodes are in use
REFACTOR: Reformat code.
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if((qnxSb.rootDir.di_status & 0x01) != 0x01 || (qnxSb.inode.di_status & 0x01) != 0x01 ||
(qnxSb.boot.di_status & 0x01) != 0x01) return false;
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// All hail filesystems without identification marks
return true;
}
🎨Converted all plugin types to interfaces.
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public virtual void GetInformation(IMediaImage imagePlugin, Partition partition, out string information,
Encoding encoding)
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{
🎨Converted all plugin types to interfaces.
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currentEncoding = encoding ?? Encoding.GetEncoding("iso-8859-15");
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information = "";
Refactor: Simplify field names.
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byte[] sector = imagePlugin.ReadSector(partition.Start + 1);
REFACTOR: Reformat code.
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if(sector.Length < 512) return;
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IntPtr sbPtr = Marshal.AllocHGlobal(512);
Marshal.Copy(sector, 0, sbPtr, 512);
REFACTOR: All refactor in DiscImageChef.Filesystems.
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QNX4_Superblock qnxSb = (QNX4_Superblock)Marshal.PtrToStructure(sbPtr, typeof(QNX4_Superblock));
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Marshal.FreeHGlobal(sbPtr);
// Too much useless information
/*
Added support for different character encodings.
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DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_fname = {0}", CurrentEncoding.GetString(qnxSb.rootDir.di_fname));
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DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_size = {0}", qnxSb.rootDir.di_size);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_first_xtnt.block = {0}", qnxSb.rootDir.di_first_xtnt.block);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_first_xtnt.length = {0}", qnxSb.rootDir.di_first_xtnt.length);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_xblk = {0}", qnxSb.rootDir.di_xblk);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_ftime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.rootDir.di_ftime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_mtime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.rootDir.di_mtime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_atime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.rootDir.di_atime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_ctime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.rootDir.di_ctime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_num_xtnts = {0}", qnxSb.rootDir.di_num_xtnts);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_mode = {0}", Convert.ToString(qnxSb.rootDir.di_mode, 8));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_uid = {0}", qnxSb.rootDir.di_uid);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_gid = {0}", qnxSb.rootDir.di_gid);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_nlink = {0}", qnxSb.rootDir.di_nlink);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_zero = {0}", qnxSb.rootDir.di_zero);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_type = {0}", qnxSb.rootDir.di_type);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.rootDir.di_status = {0}", qnxSb.rootDir.di_status);
Added support for different character encodings.
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DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_fname = {0}", CurrentEncoding.GetString(qnxSb.inode.di_fname));
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DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_size = {0}", qnxSb.inode.di_size);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_first_xtnt.block = {0}", qnxSb.inode.di_first_xtnt.block);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_first_xtnt.length = {0}", qnxSb.inode.di_first_xtnt.length);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_xblk = {0}", qnxSb.inode.di_xblk);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_ftime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.inode.di_ftime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_mtime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.inode.di_mtime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_atime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.inode.di_atime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_ctime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.inode.di_ctime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_num_xtnts = {0}", qnxSb.inode.di_num_xtnts);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_mode = {0}", Convert.ToString(qnxSb.inode.di_mode, 8));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_uid = {0}", qnxSb.inode.di_uid);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_gid = {0}", qnxSb.inode.di_gid);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_nlink = {0}", qnxSb.inode.di_nlink);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_zero = {0}", qnxSb.inode.di_zero);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_type = {0}", qnxSb.inode.di_type);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.inode.di_status = {0}", qnxSb.inode.di_status);
Added support for different character encodings.
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DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_fname = {0}", CurrentEncoding.GetString(qnxSb.boot.di_fname));
Adds support for QNX4 filesystem. #18
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DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_size = {0}", qnxSb.boot.di_size);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_first_xtnt.block = {0}", qnxSb.boot.di_first_xtnt.block);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_first_xtnt.length = {0}", qnxSb.boot.di_first_xtnt.length);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_xblk = {0}", qnxSb.boot.di_xblk);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_ftime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.boot.di_ftime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_mtime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.boot.di_mtime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_atime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.boot.di_atime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_ctime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.boot.di_ctime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_num_xtnts = {0}", qnxSb.boot.di_num_xtnts);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_mode = {0}", Convert.ToString(qnxSb.boot.di_mode, 8));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_uid = {0}", qnxSb.boot.di_uid);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_gid = {0}", qnxSb.boot.di_gid);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_nlink = {0}", qnxSb.boot.di_nlink);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_zero = {0}", qnxSb.boot.di_zero);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_type = {0}", qnxSb.boot.di_type);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.boot.di_status = {0}", qnxSb.boot.di_status);
Added support for different character encodings.
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DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_fname = {0}", CurrentEncoding.GetString(qnxSb.altBoot.di_fname));
Adds support for QNX4 filesystem. #18
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DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_size = {0}", qnxSb.altBoot.di_size);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_first_xtnt.block = {0}", qnxSb.altBoot.di_first_xtnt.block);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_first_xtnt.length = {0}", qnxSb.altBoot.di_first_xtnt.length);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_xblk = {0}", qnxSb.altBoot.di_xblk);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_ftime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.altBoot.di_ftime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_mtime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.altBoot.di_mtime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_atime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.altBoot.di_atime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_ctime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.altBoot.di_ctime));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_num_xtnts = {0}", qnxSb.altBoot.di_num_xtnts);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_mode = {0}", Convert.ToString(qnxSb.altBoot.di_mode, 8));
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_uid = {0}", qnxSb.altBoot.di_uid);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_gid = {0}", qnxSb.altBoot.di_gid);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_nlink = {0}", qnxSb.altBoot.di_nlink);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_zero = {0}", qnxSb.altBoot.di_zero);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_type = {0}", qnxSb.altBoot.di_type);
DicConsole.DebugWriteLine("QNX4 plugin", "qnxSb.altBoot.di_status = {0}", qnxSb.altBoot.di_status);
*/
REFACTOR: Use string interpolation expression.
2017-12-21 17:58:51 +00:00
information =
DOCUMENTATION: DateTime handlers.
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$"QNX4 filesystem\nCreated on {DateHandlers.UnixUnsignedToDateTime(qnxSb.rootDir.di_ftime)}\n";
Adds support for QNX4 filesystem. #18
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🎨Converted all plugin types to interfaces.
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xmlFsType = new FileSystemType
Corrected XML metadata.
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{
Type = "QNX4 filesystem",
Clusters = (long)partition.Length,
ClusterSize = 512,
DOCUMENTATION: DateTime handlers.
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CreationDate = DateHandlers.UnixUnsignedToDateTime(qnxSb.rootDir.di_ftime),
Corrected XML metadata.
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CreationDateSpecified = true,
DOCUMENTATION: DateTime handlers.
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ModificationDate = DateHandlers.UnixUnsignedToDateTime(qnxSb.rootDir.di_mtime),
Corrected XML metadata.
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ModificationDateSpecified = true
};
🎨Converted all plugin types to interfaces.
2017-12-26 06:05:12 +00:00
xmlFsType.Bootable |= qnxSb.boot.di_size != 0 || qnxSb.altBoot.di_size != 0;
Adds support for QNX4 filesystem. #18
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}
REFACTOR: Final cleanup of DiscImageChef.Filesystems.
2017-12-24 02:37:41 +00:00
struct QNX4_Extent
{
public uint block;
public uint length;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct QNX4_Inode
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public byte[] di_fname;
public uint di_size;
public QNX4_Extent di_first_xtnt;
public uint di_xblk;
public uint di_ftime;
public uint di_mtime;
public uint di_atime;
public uint di_ctime;
public ushort di_num_xtnts;
public ushort di_mode;
public ushort di_uid;
public ushort di_gid;
public ushort di_nlink;
public uint di_zero;
public byte di_type;
public byte di_status;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct QNX4_LinkInfo
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 48)] public byte[] dl_fname;
public uint dl_inode_blk;
public byte dl_inode_ndx;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)] public byte[] dl_spare;
public byte dl_status;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct QNX4_ExtentBlock
{
public uint next_xblk;
public uint prev_xblk;
public byte num_xtnts;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)] public byte[] spare;
public uint num_blocks;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 60)] public QNX4_Extent[] xtnts;
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)] public byte[] signature;
public QNX4_Extent first_xtnt;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct QNX4_Superblock
{
public QNX4_Inode rootDir;
public QNX4_Inode inode;
public QNX4_Inode boot;
public QNX4_Inode altBoot;
}
Adds support for QNX4 filesystem. #18
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}
}
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