// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename       : Consts.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Component
//
// --[ Description ] ----------------------------------------------------------
//
//     Description
//
// --[ 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 © 2011-2017 Natalia Portillo
// ****************************************************************************/
using System;

namespace DiscImageChef.Filesystems.ISO9660
{
    public partial class ISO9660 : Filesystem
    {
        readonly string IsoMagic = "CD001";
        readonly string HighSierraMagic = "CDROM";
        const ushort ElToritoMagic = 0xAA55;
        const int ElToritoEntrySize = 32;
        const ushort XaMagic = 0x5841; // "XA"
        const ushort AppleMagic = 0x4141; // "AA"
        const ushort AppleMagicOld = 0x4241; // "BA"
        const ushort SUSP_Continuation = 0x4345; // "CE"
        const ushort SUSP_Padding = 0x5044; // "PD"
        const ushort SUSP_Indicator = 0x5350; // "SP"
        const ushort SUSP_Terminator = 0x5354; // "ST"
        const ushort SUSP_Reference = 0x4552; // "ER"
        const ushort SUSP_Selector = 0x4553; // "ES"
        const ushort SUSP_Magic = 0xBEEF;
        const ushort RRIP_Magic = 0x5252; // "RR"
        const ushort RRIP_PosixAttributes = 0x5058; // "PX"
        const ushort RRIP_PosixDevNo = 0x504E; // "PN"
        const ushort RRIP_Symlink = 0x534C; // "SL"
        const ushort RRIP_Name = 0x4E4D; // "NM"
        const ushort RRIP_Childlink = 0x434C; // "CL"
        const ushort RRIP_Parentlink = 0x504C; // "PL"
        const ushort RRIP_RelocatedDir = 0x5245; // "RE"
        const ushort RRIP_Timestamps = 0x5446; // "TF"
        const ushort RRIP_Sparse = 0x5346; // "SF"
        const ulong ziso_header_magic = 0x37E45396C9DBD607;
        const ulong ziso_header_cigam = 0x07D6DBC99653E437;
        const ushort ziso_Magic = 0x5A46; // "ZF"
        const ushort ziso_PagedZlib = 0x707A; // "pz"

        [Flags]
        enum FileFlags : byte
        {
            Hidden = 0x01,
            Directory = 0x02,
            Associated = 0x04,
            Record = 0x08,
            Protected = 0x10,
            MultiExtent = 0x80
        }

        [Flags]
        enum Permissions : ushort
        {
            SystemRead = 0x01,
            SystemExecute = 0x04,
            OwnerRead = 0x10,
            OwnerExecute = 0x40,
            GroupRead = 0x100,
            GroupExecute = 0x400,
            OtherRead = 0x1000,
            OtherExecute = 0x4000,
        }

        [Flags]
        enum XaAttributes : ushort
        {
            SystemRead = 0x01,
            SystemExecute = 0x04,
            OwnerRead = 0x10,
            OwnerExecute = 0x40,
            GroupRead = 0x100,
            GroupExecute = 0x400,
            Mode2Form1 = 0x800,
            Mode2Form2 = 0x1000,
            Interleaved = 0x2000,
            Cdda = 0x4000,
            Directory = 0x8000,
        }

        enum RecordFormat : byte
        {
            Unspecified = 0,
            FixedLength = 1,
            VariableLength = 2,
            VariableLengthAlternate = 3
        }

        enum RecordAttribute : byte
        {
            LFCR = 0,
            ISO1539 = 1,
            ControlContained = 2,
        }

        enum ElToritoIndicator : byte
        {
            Header = 1,
            Extension = 0x44,
            Bootable = 0x88,
            MoreHeaders = 0x90,
            LastHeader = 0x91
        }

        enum ElToritoPlatform : byte
        {
            x86 = 0,
            PowerPC = 1,
            Macintosh = 2,
            EFI = 0xef
        }

        enum ElToritoEmulation : byte
        {
            None = 0,
            Md2hd = 1,
            Mf2hd = 2,
            Mf2ed = 3,
            Hdd = 4
        }

        [Flags]
        enum ElToritoFlags : byte
        {
            Reserved = 0x10,
            Continued = 0x20,
            ATAPI = 0x40,
            SCSI = 0x08
        }

        enum AppleId : byte
        {
            ProDOS = 1,
            HFS = 2
        }

        enum AppleOldId : byte
        {
            ProDOS = 1,
            TypeCreator = 2,
            TypeCreatorBundle = 3,
            TypeCreatorIcon = 4,
            TypeCreatorIconBundle = 5,
            HFS = 6
        }

        [Flags]
        enum PosixMode : uint
        {
            OwnerRead = 0x100,
            OwnerWrite = 0x80,
            OwnerExecute = 0x40,
            GroupRead = 0x20,
            GroupWrite = 0x10,
            GroupExecute = 0x8,
            OtherRead = 0x4,
            OtherWrite = 0x2,
            OtherExecute = 0x1,
            SetUID = 0x800,
            SetGid = 0x400,
            IsVTX = 0x200,
            Socket = 0xC000,
            Symlink = 0xA000,
            Regular = 0x8000,
            Block = 0x6000,
            Character = 0x2000,
            Directory = 0x4000,
            Pipe = 0x1000
        }

        [Flags]
        enum SymlinkFlags : byte
        {
            Continue = 1
        }

        [Flags]
        enum SymlinkComponentFlags : byte
        {
            Continue = 1,
            Current = 2,
            Parent = 4,
            Root = 8,
            Mountpoint = 16,
            Networkname = 32
        }

        [Flags]
        enum AlternateNameFlags : byte
        {
            Continue = 1,
            Current = 2,
            Parent = 4,
            Networkname = 32
        }

        [Flags]
        enum TimestampFlags : byte
        {
            Creation = 1 << 0,
            Modification = 1 << 1,
            Access = 1 << 2,
            AttributeChange = 1 << 3,
            Backup = 1 << 4,
            Expiration = 1 << 5,
            Effective = 1 << 6,
            LongFormat = 1 << 7,
        }
    }
}