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123 lines
4.9 KiB
C#
123 lines
4.9 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 : SmartFileSystem 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.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 Smart File System</summary>
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public sealed partial class SFS
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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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if(partition.Start >= partition.End) return false;
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ErrorNumber errno = imagePlugin.ReadSector(partition.Start, false, out byte[] sector, out _);
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if(errno != ErrorNumber.NoError) return false;
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var magic = BigEndianBitConverter.ToUInt32(sector, 0x00);
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return magic is SFS_MAGIC or SFS2_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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information = "";
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metadata = new FileSystem();
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ErrorNumber errno = imagePlugin.ReadSector(partition.Start, false, out byte[] rootBlockSector, out _);
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if(errno != ErrorNumber.NoError) return;
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RootBlock rootBlock = Marshal.ByteArrayToStructureBigEndian<RootBlock>(rootBlockSector);
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var sbInformation = new StringBuilder();
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sbInformation.AppendLine(Localization.SmartFileSystem);
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sbInformation.AppendFormat(Localization.Volume_version_0, rootBlock.version).AppendLine();
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sbInformation.AppendFormat(Localization.Volume_starts_on_device_byte_0_and_ends_on_byte_1,
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rootBlock.firstbyte,
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rootBlock.lastbyte)
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.AppendLine();
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sbInformation.AppendFormat(Localization.Volume_has_0_blocks_of_1_bytes_each,
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rootBlock.totalblocks,
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rootBlock.blocksize)
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.AppendLine();
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sbInformation.AppendFormat(Localization.Volume_created_on_0,
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DateHandlers.UnixUnsignedToDateTime(rootBlock.datecreated).AddYears(8))
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.AppendLine();
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sbInformation.AppendFormat(Localization.Bitmap_starts_at_block_0, rootBlock.bitmapbase).AppendLine();
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sbInformation.AppendFormat(Localization.Admin_space_container_starts_in_block_0, rootBlock.adminspacecontainer)
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.AppendLine();
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sbInformation.AppendFormat(Localization.Root_object_container_starts_in_block_0, rootBlock.rootobjectcontainer)
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.AppendLine();
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sbInformation
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.AppendFormat(Localization.Root_node_of_the_extent_B_tree_resides_in_block_0, rootBlock.extentbnoderoot)
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.AppendLine();
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sbInformation
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.AppendFormat(Localization.Root_node_of_the_object_B_tree_resides_in_block_0, rootBlock.objectnoderoot)
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.AppendLine();
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if(rootBlock.bits.HasFlag(Flags.CaseSensitive)) sbInformation.AppendLine(Localization.Volume_is_case_sensitive);
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if(rootBlock.bits.HasFlag(Flags.RecycledFolder))
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sbInformation.AppendLine(Localization.Volume_moves_deleted_files_to_a_recycled_folder);
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information = sbInformation.ToString();
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metadata = new FileSystem
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{
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CreationDate = DateHandlers.UnixUnsignedToDateTime(rootBlock.datecreated).AddYears(8),
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Clusters = rootBlock.totalblocks,
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ClusterSize = rootBlock.blocksize,
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Type = FS_TYPE
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};
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}
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#endregion
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} |