Files
Aaru/Aaru.Filesystems/SysV/Consts.cs

69 lines
2.7 KiB
C#

// /***************************************************************************
// Aaru Data Preservation Suite
// ----------------------------------------------------------------------------
//
// Filename : Consts.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : UNIX System V 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 © 2011-2025 Natalia Portillo
// ****************************************************************************/
// ReSharper disable NotAccessedField.Local
using System.Diagnostics.CodeAnalysis;
namespace Aaru.Filesystems;
// Information from the Linux kernel
/// <inheritdoc />
/// <summary>Implements detection of the UNIX System V filesystem</summary>
[SuppressMessage("ReSharper", "InconsistentNaming")]
[SuppressMessage("ReSharper", "UnusedMember.Local")]
[SuppressMessage("ReSharper", "UnusedType.Local")]
public sealed partial class SysVfs
{
const uint XENIX_MAGIC = 0x002B5544;
const uint XENIX_CIGAM = 0x44552B00;
const uint SYSV_MAGIC = 0xFD187E20;
const uint SYSV_CIGAM = 0x207E18FD;
// Rest have no magic.
// Per a Linux kernel, Coherent fs has following:
const string COH_FNAME = "noname";
const string COH_FPACK = "nopack";
const string COH_XXXXX = "xxxxx";
const string COH_XXXXS = "xxxxx ";
const string COH_XXXXN = "xxxxx\n";
// SCO AFS
const ushort SCO_NFREE = 0xFFFF;
// UNIX 7th Edition has nothing to detect it, so check for a valid filesystem is a must :(
const ushort V7_NICINOD = 100;
const ushort V7_NICFREE = 100;
const uint V7_MAXSIZE = 0x00FFFFFF;
const string FS_TYPE_XENIX = "xenixfs";
const string FS_TYPE_SVR4 = "sysv_r4";
const string FS_TYPE_SVR2 = "sysv_r2";
const string FS_TYPE_COHERENT = "coherent";
const string FS_TYPE_UNIX7 = "unix7fs";
}