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https://github.com/aaru-dps/Aaru.git
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197 lines
9.1 KiB
C#
197 lines
9.1 KiB
C#
/***************************************************************************
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The Disc Image Chef
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----------------------------------------------------------------------------
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Filename : SolarFS.cs
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Version : 1.0
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Author(s) : Natalia Portillo
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Component : Filesystem plugins
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Revision : $Revision$
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Last change by : $Author$
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Date : $Date$
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--[ Description ] ----------------------------------------------------------
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Identifies SolarOS filesystems and shows information.
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--[ License ] --------------------------------------------------------------
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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----------------------------------------------------------------------------
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Copyright (C) 2011-2014 Claunia.com
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****************************************************************************/
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//$Id$
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using System;
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using System.Text;
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using DiscImageChef;
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// Based on FAT's BPB, cannot find a FAT or directory
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using DiscImageChef.Console;
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namespace DiscImageChef.Plugins
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{
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class SolarFS : Plugin
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{
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public SolarFS()
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{
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Name = "Solar_OS filesystem";
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PluginUUID = new Guid("EA3101C1-E777-4B4F-B5A3-8C57F50F6E65");
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}
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public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
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{
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if((2 + partitionStart) >= imagePlugin.GetSectors())
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return false;
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byte signature; /// <summary>0x29
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string fs_type; // "SOL_FS "
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byte[] bpb = imagePlugin.ReadSector(0 + partitionStart);
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byte[] fs_type_b = new byte[8];
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signature = bpb[0x25];
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Array.Copy(bpb, 0x35, fs_type_b, 0, 8);
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fs_type = StringHandlers.CToString(fs_type_b);
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if(signature == 0x29 && fs_type == "SOL_FS ")
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return true;
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return false;
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}
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public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
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{
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information = "";
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StringBuilder sb = new StringBuilder();
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byte[] bpb_sector = imagePlugin.ReadSector(0 + partitionStart);
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byte[] bpb_strings;
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SolarOSParameterBlock BPB = new SolarOSParameterBlock();
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bpb_strings = new byte[8];
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Array.Copy(bpb_sector, 0x03, bpb_strings, 0, 8);
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BPB.OEMName = StringHandlers.CToString(bpb_strings);
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BPB.bps = BitConverter.ToUInt16(bpb_sector, 0x0B);
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BPB.root_ent = BitConverter.ToUInt16(bpb_sector, 0x10);
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BPB.sectors = BitConverter.ToUInt16(bpb_sector, 0x12);
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BPB.media = bpb_sector[0x14];
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BPB.spfat = BitConverter.ToUInt16(bpb_sector, 0x15);
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BPB.sptrk = BitConverter.ToUInt16(bpb_sector, 0x17);
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BPB.heads = BitConverter.ToUInt16(bpb_sector, 0x19);
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BPB.signature = bpb_sector[0x25];
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bpb_strings = new byte[8];
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Array.Copy(bpb_sector, 0x2A, bpb_strings, 0, 11);
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BPB.vol_name = StringHandlers.CToString(bpb_strings);
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bpb_strings = new byte[8];
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Array.Copy(bpb_sector, 0x35, bpb_strings, 0, 8);
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BPB.fs_type = StringHandlers.CToString(bpb_strings);
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BPB.x86_jump = new byte[3];
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Array.Copy(bpb_sector, 0x00, BPB.x86_jump, 0, 3);
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BPB.unk1 = bpb_sector[0x0D];
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BPB.unk2 = BitConverter.ToUInt16(bpb_sector, 0x0E);
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BPB.unk3 = new byte[10];
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Array.Copy(bpb_sector, 0x1B, BPB.unk3, 0, 10);
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BPB.unk4 = BitConverter.ToUInt32(bpb_sector, 0x26);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.x86_jump: 0x{0:X2}{1:X2}{2:X2}", BPB.x86_jump[0], BPB.x86_jump[1], BPB.x86_jump[2]);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.OEMName: \"{0}\"", BPB.OEMName);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.bps: {0}", BPB.bps);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.unk1: 0x{0:X2}", BPB.unk1);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.unk2: 0x{0:X4}", BPB.unk2);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.root_ent: {0}", BPB.root_ent);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.sectors: {0}", BPB.sectors);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.media: 0x{0:X2}", BPB.media);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.spfat: {0}", BPB.spfat);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.sptrk: {0}", BPB.sptrk);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.heads: {0}", BPB.heads);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.unk3: 0x{0:X2}{1:X2}{2:X2}{3:X2}{4:X2}{5:X2}{6:X2}{7:X2}{8:X2}{9:X2}", BPB.unk3[0], BPB.unk3[1], BPB.unk3[2], BPB.unk3[3], BPB.unk3[4], BPB.unk3[5], BPB.unk3[6], BPB.unk3[7], BPB.unk3[8], BPB.unk3[9]);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.signature: 0x{0:X2}", BPB.signature);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.unk4: 0x{0:X8}", BPB.unk4);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.vol_name: \"{0}\"", BPB.vol_name);
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DicConsole.DebugWriteLine("SolarFS plugin", "BPB.fs_type: \"{0}\"", BPB.fs_type);
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sb.AppendLine("Solar_OS filesystem");
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sb.AppendFormat("Media descriptor: 0x{0:X2}", BPB.media).AppendLine();
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sb.AppendFormat("{0} bytes per sector", BPB.bps).AppendLine();
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if(imagePlugin.GetSectorSize() == 2336 || imagePlugin.GetSectorSize() == 2352 || imagePlugin.GetSectorSize() == 2448)
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{
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if(BPB.bps != imagePlugin.GetSectorSize())
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{
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sb.AppendFormat("WARNING: Filesystem describes a {0} bytes/sector, while device describes a {1} bytes/sector", BPB.bps, 2048).AppendLine();
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}
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}
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else if(BPB.bps != imagePlugin.GetSectorSize())
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{
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sb.AppendFormat("WARNING: Filesystem describes a {0} bytes/sector, while device describes a {1} bytes/sector", BPB.bps, imagePlugin.GetSectorSize()).AppendLine();
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}
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sb.AppendFormat("{0} sectors on volume ({1} bytes)", BPB.sectors, BPB.sectors * BPB.bps).AppendLine();
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if(BPB.sectors > imagePlugin.GetSectors())
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sb.AppendFormat("WARNING: Filesystem describes a {0} sectors volume, bigger than device ({1} sectors)", BPB.sectors, imagePlugin.GetSectors());
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sb.AppendFormat("{0} heads", BPB.heads).AppendLine();
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sb.AppendFormat("{0} sectors per track", BPB.sptrk).AppendLine();
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sb.AppendFormat("Volume name: {0}", BPB.vol_name).AppendLine();
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xmlFSType = new Schemas.FileSystemType();
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xmlFSType.Type = "SolarFS";
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xmlFSType.Clusters = BPB.sectors;
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xmlFSType.ClusterSize = BPB.bps;
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xmlFSType.VolumeName = BPB.vol_name;
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information = sb.ToString();
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}
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public struct SolarOSParameterBlock
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{
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/// <summary>0x00, x86 jump (3 bytes), jumps to 0x60</summary>
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public byte[] x86_jump;
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/// <summary>0x03, 8 bytes, "SOLAR_OS"</summary>
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public string OEMName;
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/// <summary>0x0B, Bytes per sector</summary>
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public UInt16 bps;
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/// <summary>0x0D, unknown, 0x01</summary>
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public byte unk1;
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/// <summary>0x0E, unknown, 0x0201</summary>
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public UInt16 unk2;
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/// <summary>0x10, Number of entries on root directory ? (no root directory found)</summary>
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public UInt16 root_ent;
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/// <summary>0x12, Sectors in volume</summary>
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public UInt16 sectors;
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/// <summary>0x14, Media descriptor</summary>
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public byte media;
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/// <summary>0x15, Sectors per FAT ? (no FAT found)</summary>
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public UInt16 spfat;
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/// <summary>0x17, Sectors per track</summary>
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public UInt16 sptrk;
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/// <summary>0x19, Heads</summary>
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public UInt16 heads;
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/// <summary>0x1B, unknown, 10 bytes, zero-filled</summary>
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public byte[] unk3;
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/// <summary>0x25, 0x29</summary>
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public byte signature;
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/// <summary>0x26, unknown, zero-filled</summary>
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public UInt32 unk4;
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/// <summary>0x2A, 11 bytes, volume name, space-padded</summary>
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public string vol_name;
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/// <summary>0x35, 8 bytes, "SOL_FS "</summary>
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public string fs_type;
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}
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}
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} |