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Aaru/Aaru.Filesystems/QNX4/Info.cs
Natalia Portillo 4ef3252b24 [Aaru.Filesystems] Introduced constants for module names 
Introduces constant fields for respective debug module names, replacing the hardcoded ones.
This is done to standardize the naming convention, reduce redundancy and potentially avoid any typos or name mismatches across the project.
This change makes the code more maintainable and easier to update in case module names need to be changed.
2023-10-03 18:50:19 +01:00

192 lines
12 KiB
C#
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// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Info.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : QNX4 filesystem plugin.
//
// --[ 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 © 2011-2023 Natalia Portillo
// ****************************************************************************/
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
using Aaru.CommonTypes.AaruMetadata;
using Aaru.CommonTypes.Enums;
using Aaru.CommonTypes.Interfaces;
using Aaru.Helpers;
using Partition = Aaru.CommonTypes.Partition;
namespace Aaru.Filesystems;
/// <inheritdoc />
/// <summary>Implements detection of QNX 4 filesystem</summary>
[SuppressMessage("ReSharper", "UnusedType.Local")]
public sealed partial class QNX4
{
/// <inheritdoc />
public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if(partition.Start + 1 >= imagePlugin.Info.Sectors)
return false;
ErrorNumber errno = imagePlugin.ReadSector(partition.Start + 1, out byte[] sector);
if(errno != ErrorNumber.NoError)
return false;
if(sector.Length < 512)
return false;
Superblock qnxSb = Marshal.ByteArrayToStructureLittleEndian<Superblock>(sector);
// Check root directory name
if(!_rootDirFname.SequenceEqual(qnxSb.rootDir.di_fname))
return false;
// Check sizes are multiple of blocks
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;
// Check extents are not past device
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 ||
qnxSb.altBoot.di_first_xtnt.Block + partition.Start >= partition.End)
return false;
// Check inodes are in use
return (qnxSb.rootDir.di_status & 0x01) == 0x01 && (qnxSb.inode.di_status & 0x01) == 0x01 &&
(qnxSb.boot.di_status & 0x01) == 0x01;
// All hail filesystems without identification marks
}
/// <inheritdoc />
public void GetInformation(IMediaImage imagePlugin, Partition partition, Encoding encoding, out string information,
out FileSystem metadata)
{
information = "";
metadata = new FileSystem();
ErrorNumber errno = imagePlugin.ReadSector(partition.Start + 1, out byte[] sector);
if(errno != ErrorNumber.NoError)
return;
if(sector.Length < 512)
return;
Superblock qnxSb = Marshal.ByteArrayToStructureLittleEndian<Superblock>(sector);
// Too much useless information
/*
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_fname = {0}", CurrentEncoding.GetString(qnxSb.rootDir.di_fname));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_size = {0}", qnxSb.rootDir.di_size);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_first_xtnt.block = {0}", qnxSb.rootDir.di_first_xtnt.block);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_first_xtnt.length = {0}", qnxSb.rootDir.di_first_xtnt.length);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_xblk = {0}", qnxSb.rootDir.di_xblk);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_ftime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.rootDir.di_ftime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_mtime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.rootDir.di_mtime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_atime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.rootDir.di_atime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_ctime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.rootDir.di_ctime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_num_xtnts = {0}", qnxSb.rootDir.di_num_xtnts);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_mode = {0}", Convert.ToString(qnxSb.rootDir.di_mode, 8));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_uid = {0}", qnxSb.rootDir.di_uid);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_gid = {0}", qnxSb.rootDir.di_gid);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_nlink = {0}", qnxSb.rootDir.di_nlink);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_zero = {0}", qnxSb.rootDir.di_zero);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_type = {0}", qnxSb.rootDir.di_type);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.rootDir.di_status = {0}", qnxSb.rootDir.di_status);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_fname = {0}", CurrentEncoding.GetString(qnxSb.inode.di_fname));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_size = {0}", qnxSb.inode.di_size);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_first_xtnt.block = {0}", qnxSb.inode.di_first_xtnt.block);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_first_xtnt.length = {0}", qnxSb.inode.di_first_xtnt.length);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_xblk = {0}", qnxSb.inode.di_xblk);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_ftime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.inode.di_ftime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_mtime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.inode.di_mtime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_atime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.inode.di_atime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_ctime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.inode.di_ctime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_num_xtnts = {0}", qnxSb.inode.di_num_xtnts);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_mode = {0}", Convert.ToString(qnxSb.inode.di_mode, 8));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_uid = {0}", qnxSb.inode.di_uid);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_gid = {0}", qnxSb.inode.di_gid);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_nlink = {0}", qnxSb.inode.di_nlink);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_zero = {0}", qnxSb.inode.di_zero);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_type = {0}", qnxSb.inode.di_type);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.inode.di_status = {0}", qnxSb.inode.di_status);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_fname = {0}", CurrentEncoding.GetString(qnxSb.boot.di_fname));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_size = {0}", qnxSb.boot.di_size);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_first_xtnt.block = {0}", qnxSb.boot.di_first_xtnt.block);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_first_xtnt.length = {0}", qnxSb.boot.di_first_xtnt.length);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_xblk = {0}", qnxSb.boot.di_xblk);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_ftime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.boot.di_ftime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_mtime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.boot.di_mtime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_atime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.boot.di_atime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_ctime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.boot.di_ctime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_num_xtnts = {0}", qnxSb.boot.di_num_xtnts);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_mode = {0}", Convert.ToString(qnxSb.boot.di_mode, 8));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_uid = {0}", qnxSb.boot.di_uid);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_gid = {0}", qnxSb.boot.di_gid);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_nlink = {0}", qnxSb.boot.di_nlink);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_zero = {0}", qnxSb.boot.di_zero);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_type = {0}", qnxSb.boot.di_type);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.boot.di_status = {0}", qnxSb.boot.di_status);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_fname = {0}", CurrentEncoding.GetString(qnxSb.altBoot.di_fname));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_size = {0}", qnxSb.altBoot.di_size);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_first_xtnt.block = {0}", qnxSb.altBoot.di_first_xtnt.block);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_first_xtnt.length = {0}", qnxSb.altBoot.di_first_xtnt.length);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_xblk = {0}", qnxSb.altBoot.di_xblk);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_ftime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.altBoot.di_ftime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_mtime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.altBoot.di_mtime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_atime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.altBoot.di_atime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_ctime = {0}", DateHandlers.UNIXUnsignedToDateTime(qnxSb.altBoot.di_ctime));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_num_xtnts = {0}", qnxSb.altBoot.di_num_xtnts);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_mode = {0}", Convert.ToString(qnxSb.altBoot.di_mode, 8));
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_uid = {0}", qnxSb.altBoot.di_uid);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_gid = {0}", qnxSb.altBoot.di_gid);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_nlink = {0}", qnxSb.altBoot.di_nlink);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_zero = {0}", qnxSb.altBoot.di_zero);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_type = {0}", qnxSb.altBoot.di_type);
AaruConsole.DebugWriteLine(MODULE_NAME, "qnxSb.altBoot.di_status = {0}", qnxSb.altBoot.di_status);
*/
information = Localization.QNX4_filesystem + "\n" +
string.Format(Localization.Created_on_0,
DateHandlers.UnixUnsignedToDateTime(qnxSb.rootDir.di_ftime)) + "\n";
metadata = new FileSystem
{
Type = FS_TYPE,
Clusters = partition.Length,
ClusterSize = 512,
CreationDate = DateHandlers.UnixUnsignedToDateTime(qnxSb.rootDir.di_ftime),
ModificationDate = DateHandlers.UnixUnsignedToDateTime(qnxSb.rootDir.di_mtime)
};
metadata.Bootable |= qnxSb.boot.di_size != 0 || qnxSb.altBoot.di_size != 0;
}
}
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