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116 lines
4.7 KiB
C#
116 lines
4.7 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : Info.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Veritas File System plugin.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.Text;
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using Aaru.CommonTypes.AaruMetadata;
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using Aaru.CommonTypes.Enums;
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using Aaru.CommonTypes.Interfaces;
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using Aaru.Helpers;
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using Partition = Aaru.CommonTypes.Partition;
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namespace Aaru.Filesystems;
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/// <inheritdoc />
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/// <summary>Implements detection of the Veritas filesystem</summary>
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public sealed partial class VxFS
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{
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#region IFilesystem Members
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/// <inheritdoc />
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public bool Identify(IMediaImage imagePlugin, Partition partition)
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{
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ulong vmfsSuperOff = VXFS_BASE / imagePlugin.Info.SectorSize;
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if(partition.Start + vmfsSuperOff >= partition.End) return false;
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ErrorNumber errno = imagePlugin.ReadSector(partition.Start + vmfsSuperOff, false, out byte[] sector, out _);
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if(errno != ErrorNumber.NoError) return false;
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var magic = BitConverter.ToUInt32(sector, 0x00);
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return magic == VXFS_MAGIC;
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}
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/// <inheritdoc />
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public void GetInformation(IMediaImage imagePlugin, Partition partition, Encoding encoding, out string information,
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out FileSystem metadata)
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{
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encoding ??= Encoding.UTF8;
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information = "";
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metadata = new FileSystem();
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ulong vmfsSuperOff = VXFS_BASE / imagePlugin.Info.SectorSize;
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ErrorNumber errno = imagePlugin.ReadSector(partition.Start + vmfsSuperOff, false, out byte[] sector, out _);
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if(errno != ErrorNumber.NoError) return;
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SuperBlock vxSb = Marshal.ByteArrayToStructureLittleEndian<SuperBlock>(sector);
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var sbInformation = new StringBuilder();
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sbInformation.AppendLine(Localization.Veritas_file_system);
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sbInformation.AppendFormat(Localization.Volume_version_0, vxSb.vs_version).AppendLine();
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sbInformation.AppendFormat(Localization.Volume_name_0, StringHandlers.CToString(vxSb.vs_fname, encoding))
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.AppendLine();
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sbInformation.AppendFormat(Localization.Volume_has_0_blocks_of_1_bytes_each, vxSb.vs_bsize, vxSb.vs_size)
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.AppendLine();
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sbInformation.AppendFormat(Localization.Volume_has_0_inodes_per_block, vxSb.vs_inopb).AppendLine();
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sbInformation.AppendFormat(Localization.Volume_has_0_free_inodes, vxSb.vs_ifree).AppendLine();
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sbInformation.AppendFormat(Localization.Volume_has_0_free_blocks, vxSb.vs_free).AppendLine();
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sbInformation.AppendFormat(Localization.Volume_created_on_0,
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DateHandlers.UnixUnsignedToDateTime(vxSb.vs_ctime, vxSb.vs_cutime))
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.AppendLine();
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sbInformation.AppendFormat(Localization.Volume_last_modified_on_0,
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DateHandlers.UnixUnsignedToDateTime(vxSb.vs_wtime, vxSb.vs_wutime))
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.AppendLine();
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if(vxSb.vs_clean != 0) sbInformation.AppendLine(Localization.Volume_is_dirty);
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information = sbInformation.ToString();
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metadata = new FileSystem
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{
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Type = FS_TYPE,
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CreationDate = DateHandlers.UnixUnsignedToDateTime(vxSb.vs_ctime, vxSb.vs_cutime),
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ModificationDate = DateHandlers.UnixUnsignedToDateTime(vxSb.vs_wtime, vxSb.vs_wutime),
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Clusters = (ulong)vxSb.vs_size,
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ClusterSize = (uint)vxSb.vs_bsize,
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Dirty = vxSb.vs_clean != 0,
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FreeClusters = (ulong)vxSb.vs_free
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};
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}
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#endregion
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} |