mirror of
https://github.com/aaru-dps/Aaru.git
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Refactor and reformat code
git-svn-id: svn://claunia.com/FileSystemIDandChk@29 17725271-3d32-4980-a8cb-9ff532f270ba
This commit is contained in:
@@ -1,133 +1,132 @@
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using System;
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using System.IO;
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using System.Text;
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using FileSystemIDandChk;
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namespace FileSystemIDandChk.Plugins
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{
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class MinixFS : Plugin
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{
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private const UInt16 MINIX_MAGIC = 0x137F; // Minix v1, 14 char filenames
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private const UInt16 MINIX_MAGIC2 = 0x138F; // Minix v1, 30 char filenames
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private const UInt16 MINIX2_MAGIC = 0x2468; // Minix v2, 14 char filenames
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private const UInt16 MINIX2_MAGIC2 = 0x2478; // Minix v2, 30 char filenames
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private const UInt16 MINIX3_MAGIC = 0x4D5A; // Minix v3, 60 char filenames
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class MinixFS : Plugin
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{
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const UInt16 MINIX_MAGIC = 0x137F;
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// Minix v1, 14 char filenames
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const UInt16 MINIX_MAGIC2 = 0x138F;
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// Minix v1, 30 char filenames
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const UInt16 MINIX2_MAGIC = 0x2468;
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// Minix v2, 14 char filenames
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const UInt16 MINIX2_MAGIC2 = 0x2478;
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// Minix v2, 30 char filenames
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const UInt16 MINIX3_MAGIC = 0x4D5A;
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// Minix v3, 60 char filenames
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// Byteswapped
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const UInt16 MINIX_CIGAM = 0x7F13;
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// Minix v1, 14 char filenames
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const UInt16 MINIX_CIGAM2 = 0x8F13;
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// Minix v1, 30 char filenames
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const UInt16 MINIX2_CIGAM = 0x6824;
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// Minix v2, 14 char filenames
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const UInt16 MINIX2_CIGAM2 = 0x7824;
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// Minix v2, 30 char filenames
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const UInt16 MINIX3_CIGAM = 0x5A4D;
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// Minix v3, 60 char filenames
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// Byteswapped
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private const UInt16 MINIX_CIGAM = 0x7F13; // Minix v1, 14 char filenames
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private const UInt16 MINIX_CIGAM2 = 0x8F13; // Minix v1, 30 char filenames
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private const UInt16 MINIX2_CIGAM = 0x6824; // Minix v2, 14 char filenames
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private const UInt16 MINIX2_CIGAM2 = 0x7824; // Minix v2, 30 char filenames
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private const UInt16 MINIX3_CIGAM = 0x5A4D; // Minix v3, 60 char filenames
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public MinixFS(PluginBase Core)
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public MinixFS(PluginBase Core)
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{
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base.Name = "Minix Filesystem";
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base.PluginUUID = new Guid("FE248C3B-B727-4AE5-A39F-79EA9A07D4B3");
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Name = "Minix Filesystem";
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PluginUUID = new Guid("FE248C3B-B727-4AE5-A39F-79EA9A07D4B3");
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}
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public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
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{
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UInt16 magic;
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{
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UInt16 magic;
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byte[] minix_sb_sector = imagePlugin.ReadSector(2 + partitionOffset);
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magic = BitConverter.ToUInt16(minix_sb_sector, 0x010); // Here should reside magic number on Minix V1 & V2
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if(magic == MINIX_MAGIC || magic == MINIX_MAGIC2 || magic == MINIX2_MAGIC || magic == MINIX2_MAGIC2 ||
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magic == MINIX_CIGAM || magic == MINIX_CIGAM2 || magic == MINIX2_CIGAM || magic == MINIX2_CIGAM2)
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return true;
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else
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{
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magic = BitConverter.ToUInt16(minix_sb_sector, 0x018); // Here should reside magic number on Minix V3
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if (magic == MINIX_MAGIC || magic == MINIX_MAGIC2 || magic == MINIX2_MAGIC || magic == MINIX2_MAGIC2 ||
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magic == MINIX_CIGAM || magic == MINIX_CIGAM2 || magic == MINIX2_CIGAM || magic == MINIX2_CIGAM2)
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return true;
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magic = BitConverter.ToUInt16(minix_sb_sector, 0x018); // Here should reside magic number on Minix V3
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if(magic == MINIX3_MAGIC || magic == MINIX3_CIGAM)
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return true;
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else
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return false;
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}
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}
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public override void GetInformation (ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset, out string information)
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{
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information = "";
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if (magic == MINIX3_MAGIC || magic == MINIX3_CIGAM)
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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 partitionOffset, out string information)
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{
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information = "";
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StringBuilder sb = new StringBuilder();
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StringBuilder sb = new StringBuilder();
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bool littleendian = true;
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bool minix3 = false;
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int filenamesize = 0;
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string minixVersion;
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UInt16 magic;
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bool minix3 = false;
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int filenamesize;
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string minixVersion;
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UInt16 magic;
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byte[] minix_sb_sector = imagePlugin.ReadSector(2 + partitionOffset);
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magic = BigEndianBitConverter.ToUInt16(minix_sb_sector, 0x018);
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if(magic == MINIX3_MAGIC || magic == MINIX3_CIGAM)
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{
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filenamesize = 60;
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minixVersion = "Minix V3 filesystem";
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if(magic == MINIX3_CIGAM)
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littleendian = false;
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else
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littleendian = true;
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if (magic == MINIX3_MAGIC || magic == MINIX3_CIGAM)
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{
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filenamesize = 60;
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minixVersion = "Minix V3 filesystem";
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BigEndianBitConverter.IsLittleEndian = magic != MINIX3_CIGAM;
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minix3 = true;
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}
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else
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{
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magic = BigEndianBitConverter.ToUInt16(minix_sb_sector, 0x010);
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minix3 = true;
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}
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else
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{
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magic = BigEndianBitConverter.ToUInt16(minix_sb_sector, 0x010);
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switch(magic)
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{
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case MINIX_MAGIC:
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filenamesize = 14;
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minixVersion = "Minix V1 filesystem";
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BigEndianBitConverter.IsLittleEndian = true;
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break;
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case MINIX_MAGIC2:
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filenamesize = 30;
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minixVersion = "Minix V1 filesystem";
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BigEndianBitConverter.IsLittleEndian = true;
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break;
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case MINIX2_MAGIC:
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filenamesize = 14;
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minixVersion = "Minix V2 filesystem";
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BigEndianBitConverter.IsLittleEndian = true;
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break;
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case MINIX2_MAGIC2:
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filenamesize = 30;
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minixVersion = "Minix V2 filesystem";
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BigEndianBitConverter.IsLittleEndian = true;
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break;
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case MINIX_CIGAM:
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filenamesize = 14;
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minixVersion = "Minix V1 filesystem";
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BigEndianBitConverter.IsLittleEndian = false;
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break;
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case MINIX_CIGAM2:
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filenamesize = 30;
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minixVersion = "Minix V1 filesystem";
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BigEndianBitConverter.IsLittleEndian = false;
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break;
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case MINIX2_CIGAM:
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filenamesize = 14;
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minixVersion = "Minix V2 filesystem";
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BigEndianBitConverter.IsLittleEndian = false;
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break;
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case MINIX2_CIGAM2:
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filenamesize = 30;
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minixVersion = "Minix V2 filesystem";
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BigEndianBitConverter.IsLittleEndian = false;
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break;
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default:
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return;
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break;
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}
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}
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switch (magic)
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{
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case MINIX_MAGIC:
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filenamesize = 14;
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minixVersion = "Minix V1 filesystem";
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BigEndianBitConverter.IsLittleEndian = true;
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break;
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case MINIX_MAGIC2:
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filenamesize = 30;
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minixVersion = "Minix V1 filesystem";
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BigEndianBitConverter.IsLittleEndian = true;
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break;
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case MINIX2_MAGIC:
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filenamesize = 14;
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minixVersion = "Minix V2 filesystem";
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BigEndianBitConverter.IsLittleEndian = true;
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break;
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case MINIX2_MAGIC2:
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filenamesize = 30;
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minixVersion = "Minix V2 filesystem";
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BigEndianBitConverter.IsLittleEndian = true;
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break;
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case MINIX_CIGAM:
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filenamesize = 14;
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minixVersion = "Minix V1 filesystem";
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BigEndianBitConverter.IsLittleEndian = false;
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break;
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case MINIX_CIGAM2:
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filenamesize = 30;
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minixVersion = "Minix V1 filesystem";
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BigEndianBitConverter.IsLittleEndian = false;
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break;
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case MINIX2_CIGAM:
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filenamesize = 14;
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minixVersion = "Minix V2 filesystem";
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BigEndianBitConverter.IsLittleEndian = false;
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break;
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case MINIX2_CIGAM2:
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filenamesize = 30;
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minixVersion = "Minix V2 filesystem";
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BigEndianBitConverter.IsLittleEndian = false;
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break;
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default:
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return;
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}
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}
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if(minix3)
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{
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Minix3SuperBlock mnx_sb = new Minix3SuperBlock();
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if (minix3)
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{
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Minix3SuperBlock mnx_sb = new Minix3SuperBlock();
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mnx_sb.s_ninodes = BigEndianBitConverter.ToUInt32(minix_sb_sector, 0x00);
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mnx_sb.s_pad0 = BigEndianBitConverter.ToUInt16(minix_sb_sector, 0x04);
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@@ -143,21 +142,21 @@ namespace FileSystemIDandChk.Plugins
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mnx_sb.s_blocksize = BigEndianBitConverter.ToUInt16(minix_sb_sector, 0x1C);
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mnx_sb.s_disk_version = minix_sb_sector[0x1E];
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sb.AppendLine(minixVersion);
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sb.AppendFormat("{0} chars in filename", filenamesize).AppendLine();
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sb.AppendFormat("{0} zones on volume ({1} bytes)", mnx_sb.s_zones, mnx_sb.s_zones*mnx_sb.s_blocksize).AppendLine();
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sb.AppendFormat("{0} bytes/block", mnx_sb.s_blocksize).AppendLine();
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sb.AppendFormat("{0} inodes on volume", mnx_sb.s_ninodes).AppendLine();
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sb.AppendFormat("{0} blocks on inode map ({1} bytes)", mnx_sb.s_imap_blocks, mnx_sb.s_imap_blocks*mnx_sb.s_blocksize).AppendLine();
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sb.AppendFormat("{0} blocks on zone map ({1} bytes)", mnx_sb.s_zmap_blocks, mnx_sb.s_zmap_blocks*mnx_sb.s_blocksize).AppendLine();
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sb.AppendFormat("First data zone: {0}", mnx_sb.s_firstdatazone).AppendLine();
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//sb.AppendFormat("log2 of blocks/zone: {0}", mnx_sb.s_log_zone_size).AppendLine(); // Apparently 0
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sb.AppendFormat("{0} bytes maximum per file", mnx_sb.s_max_size).AppendLine();
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sb.AppendFormat("On-disk filesystem version: {0}", mnx_sb.s_disk_version).AppendLine();
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}
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else
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{
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MinixSuperBlock mnx_sb = new MinixSuperBlock();
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sb.AppendLine(minixVersion);
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sb.AppendFormat("{0} chars in filename", filenamesize).AppendLine();
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sb.AppendFormat("{0} zones on volume ({1} bytes)", mnx_sb.s_zones, mnx_sb.s_zones * mnx_sb.s_blocksize).AppendLine();
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sb.AppendFormat("{0} bytes/block", mnx_sb.s_blocksize).AppendLine();
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sb.AppendFormat("{0} inodes on volume", mnx_sb.s_ninodes).AppendLine();
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sb.AppendFormat("{0} blocks on inode map ({1} bytes)", mnx_sb.s_imap_blocks, mnx_sb.s_imap_blocks * mnx_sb.s_blocksize).AppendLine();
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sb.AppendFormat("{0} blocks on zone map ({1} bytes)", mnx_sb.s_zmap_blocks, mnx_sb.s_zmap_blocks * mnx_sb.s_blocksize).AppendLine();
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sb.AppendFormat("First data zone: {0}", mnx_sb.s_firstdatazone).AppendLine();
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//sb.AppendFormat("log2 of blocks/zone: {0}", mnx_sb.s_log_zone_size).AppendLine(); // Apparently 0
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sb.AppendFormat("{0} bytes maximum per file", mnx_sb.s_max_size).AppendLine();
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sb.AppendFormat("On-disk filesystem version: {0}", mnx_sb.s_disk_version).AppendLine();
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}
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else
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{
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MinixSuperBlock mnx_sb = new MinixSuperBlock();
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mnx_sb.s_ninodes = BigEndianBitConverter.ToUInt16(minix_sb_sector, 0x00);
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mnx_sb.s_nzones = BigEndianBitConverter.ToUInt16(minix_sb_sector, 0x02);
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@@ -170,53 +169,76 @@ namespace FileSystemIDandChk.Plugins
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mnx_sb.s_state = BigEndianBitConverter.ToUInt16(minix_sb_sector, 0x12);
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mnx_sb.s_zones = BigEndianBitConverter.ToUInt32(minix_sb_sector, 0x14);
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sb.AppendLine(minixVersion);
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sb.AppendFormat("{0} chars in filename", filenamesize).AppendLine();
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if(mnx_sb.s_zones > 0) // On V2
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sb.AppendFormat("{0} zones on volume ({1} bytes)", mnx_sb.s_zones, mnx_sb.s_zones*1024).AppendLine();
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else
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sb.AppendFormat("{0} zones on volume ({1} bytes)", mnx_sb.s_nzones, mnx_sb.s_nzones*1024).AppendLine();
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sb.AppendFormat("{0} inodes on volume", mnx_sb.s_ninodes).AppendLine();
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sb.AppendFormat("{0} blocks on inode map ({1} bytes)", mnx_sb.s_imap_blocks, mnx_sb.s_imap_blocks*1024).AppendLine();
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sb.AppendFormat("{0} blocks on zone map ({1} bytes)", mnx_sb.s_zmap_blocks, mnx_sb.s_zmap_blocks*1024).AppendLine();
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sb.AppendFormat("First data zone: {0}", mnx_sb.s_firstdatazone).AppendLine();
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//sb.AppendFormat("log2 of blocks/zone: {0}", mnx_sb.s_log_zone_size).AppendLine(); // Apparently 0
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sb.AppendFormat("{0} bytes maximum per file", mnx_sb.s_max_size).AppendLine();
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sb.AppendFormat("Filesystem state: {0:X4}", mnx_sb.s_state).AppendLine();
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}
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information = sb.ToString();
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}
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sb.AppendLine(minixVersion);
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sb.AppendFormat("{0} chars in filename", filenamesize).AppendLine();
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if (mnx_sb.s_zones > 0) // On V2
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sb.AppendFormat("{0} zones on volume ({1} bytes)", mnx_sb.s_zones, mnx_sb.s_zones * 1024).AppendLine();
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else
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sb.AppendFormat("{0} zones on volume ({1} bytes)", mnx_sb.s_nzones, mnx_sb.s_nzones * 1024).AppendLine();
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sb.AppendFormat("{0} inodes on volume", mnx_sb.s_ninodes).AppendLine();
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sb.AppendFormat("{0} blocks on inode map ({1} bytes)", mnx_sb.s_imap_blocks, mnx_sb.s_imap_blocks * 1024).AppendLine();
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sb.AppendFormat("{0} blocks on zone map ({1} bytes)", mnx_sb.s_zmap_blocks, mnx_sb.s_zmap_blocks * 1024).AppendLine();
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sb.AppendFormat("First data zone: {0}", mnx_sb.s_firstdatazone).AppendLine();
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//sb.AppendFormat("log2 of blocks/zone: {0}", mnx_sb.s_log_zone_size).AppendLine(); // Apparently 0
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sb.AppendFormat("{0} bytes maximum per file", mnx_sb.s_max_size).AppendLine();
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sb.AppendFormat("Filesystem state: {0:X4}", mnx_sb.s_state).AppendLine();
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}
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information = sb.ToString();
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}
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public struct MinixSuperBlock
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{
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public UInt16 s_ninodes; // 0x00, inodes on volume
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public UInt16 s_nzones; // 0x02, zones on volume
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public UInt16 s_imap_blocks; // 0x04, blocks on inode map
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public UInt16 s_zmap_blocks; // 0x06, blocks on zone map
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public UInt16 s_firstdatazone; // 0x08, first data zone
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public UInt16 s_log_zone_size; // 0x0A, log2 of blocks/zone
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public UInt32 s_max_size; // 0x0C, max file size
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public UInt16 s_magic; // 0x10, magic
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public UInt16 s_state; // 0x12, filesystem state
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public UInt32 s_zones; // 0x14, number of zones
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}
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public struct MinixSuperBlock
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{
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public UInt16 s_ninodes;
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// 0x00, inodes on volume
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public UInt16 s_nzones;
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// 0x02, zones on volume
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public UInt16 s_imap_blocks;
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// 0x04, blocks on inode map
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public UInt16 s_zmap_blocks;
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// 0x06, blocks on zone map
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public UInt16 s_firstdatazone;
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// 0x08, first data zone
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public UInt16 s_log_zone_size;
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// 0x0A, log2 of blocks/zone
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public UInt32 s_max_size;
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// 0x0C, max file size
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public UInt16 s_magic;
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// 0x10, magic
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public UInt16 s_state;
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// 0x12, filesystem state
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public UInt32 s_zones;
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// 0x14, number of zones
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}
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public struct Minix3SuperBlock
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{
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public UInt32 s_ninodes; // 0x00, inodes on volume
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public UInt16 s_pad0; // 0x04, padding
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public UInt16 s_imap_blocks; // 0x06, blocks on inode map
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public UInt16 s_zmap_blocks; // 0x08, blocks on zone map
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public UInt16 s_firstdatazone; // 0x0A, first data zone
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public UInt16 s_log_zone_size; // 0x0C, log2 of blocks/zone
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public UInt16 s_pad1; // 0x0E, padding
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public UInt32 s_max_size; // 0x10, max file size
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public UInt32 s_zones; // 0x14, number of zones
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public UInt16 s_magic; // 0x18, magic
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public UInt16 s_pad2; // 0x1A, padding
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public UInt16 s_blocksize; // 0x1C, bytes in a block
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public byte s_disk_version; // 0x1E, on-disk structures version
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}
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}
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public struct Minix3SuperBlock
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{
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public UInt32 s_ninodes;
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// 0x00, inodes on volume
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public UInt16 s_pad0;
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// 0x04, padding
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public UInt16 s_imap_blocks;
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// 0x06, blocks on inode map
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public UInt16 s_zmap_blocks;
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// 0x08, blocks on zone map
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public UInt16 s_firstdatazone;
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// 0x0A, first data zone
|
||||
public UInt16 s_log_zone_size;
|
||||
// 0x0C, log2 of blocks/zone
|
||||
public UInt16 s_pad1;
|
||||
// 0x0E, padding
|
||||
public UInt32 s_max_size;
|
||||
// 0x10, max file size
|
||||
public UInt32 s_zones;
|
||||
// 0x14, number of zones
|
||||
public UInt16 s_magic;
|
||||
// 0x18, magic
|
||||
public UInt16 s_pad2;
|
||||
// 0x1A, padding
|
||||
public UInt16 s_blocksize;
|
||||
// 0x1C, bytes in a block
|
||||
public byte s_disk_version;
|
||||
// 0x1E, on-disk structures version
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user