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REFACTOR: All refactor in DiscImageChef.Filesystems.

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This commit is contained in:
Natalia Portillo
2017-12-22 08:43:22 +00:00
parent ef2fff0abd
commit c59e424ec8
87 changed files with 3834 additions and 4122 deletions
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138
DiscImageChef.Filesystems/SysV.cs
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@@ -32,6 +32,7 @@
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
using DiscImageChef.CommonTypes;
@@ -41,6 +42,7 @@ using Schemas;
namespace DiscImageChef.Filesystems
{
// Information from the Linux kernel
[SuppressMessage("ReSharper", "InconsistentNaming")]
public class SysVfs : Filesystem
{
const uint XENIX_MAGIC = 0x002B5544;
@@ -64,55 +66,28 @@ namespace DiscImageChef.Filesystems
public SysVfs()
{
Name = "UNIX System V filesystem";
PluginUUID = new Guid("9B8D016A-8561-400E-A12A-A198283C211D");
PluginUuid = new Guid("9B8D016A-8561-400E-A12A-A198283C211D");
CurrentEncoding = Encoding.GetEncoding("iso-8859-15");
}
public SysVfs(Encoding encoding)
{
Name = "UNIX System V filesystem";
PluginUUID = new Guid("9B8D016A-8561-400E-A12A-A198283C211D");
if(encoding == null) CurrentEncoding = Encoding.GetEncoding("iso-8859-15");
else CurrentEncoding = encoding;
PluginUuid = new Guid("9B8D016A-8561-400E-A12A-A198283C211D");
CurrentEncoding = encoding ?? Encoding.GetEncoding("iso-8859-15");
}
public SysVfs(ImagePlugin imagePlugin, Partition partition, Encoding encoding)
{
Name = "UNIX System V filesystem";
PluginUUID = new Guid("9B8D016A-8561-400E-A12A-A198283C211D");
if(encoding == null) CurrentEncoding = Encoding.GetEncoding("iso-8859-15");
else CurrentEncoding = encoding;
PluginUuid = new Guid("9B8D016A-8561-400E-A12A-A198283C211D");
CurrentEncoding = encoding ?? Encoding.GetEncoding("iso-8859-15");
}
public override bool Identify(ImagePlugin imagePlugin, Partition partition)
{
if(2 + partition.Start >= partition.End) return false;
uint magic;
string s_fname, s_fpack;
ushort s_nfree, s_ninode;
uint s_fsize;
/*for(int j = 0; j<=(br.BaseStream.Length/0x200); j++)
{
br.BaseStream.Seek(offset + j*0x200 + 0x1F8, SeekOrigin.Begin); // System V magic location
magic = br.Readuint();
if(magic == SYSV_MAGIC || magic == SYSV_CIGAM)
Console.WriteLine("0x{0:X8}: 0x{1:X8} FOUND", br.BaseStream.Position-4, magic);
else
Console.WriteLine("0x{0:X8}: 0x{1:X8}", br.BaseStream.Position-4, magic);
}*/
/*uint number;
br.BaseStream.Seek(offset+0x3A00, SeekOrigin.Begin);
while((br.BaseStream.Position) <= (offset+0x3C00))
{
number = br.Readuint();
Console.WriteLine("@{0:X8}: 0x{1:X8} ({1})", br.BaseStream.Position-offset-4, number);
}*/
byte sb_size_in_sectors;
if(imagePlugin.GetSectorSize() <= 0x400
@@ -136,7 +111,7 @@ namespace DiscImageChef.Filesystems
};
foreach(byte[] sb_sector in locations.TakeWhile(i => i + sb_size_in_sectors < (int)imagePlugin.ImageInfo.Sectors).Select(i => imagePlugin.ReadSectors((ulong)i + partition.Start, sb_size_in_sectors))) {
magic = BitConverter.ToUInt32(sb_sector, 0x3F8); // XENIX magic location
uint magic = BitConverter.ToUInt32(sb_sector, 0x3F8);
if(magic == XENIX_MAGIC || magic == XENIX_CIGAM || magic == SYSV_MAGIC || magic == SYSV_CIGAM)
return true;
@@ -151,17 +126,17 @@ namespace DiscImageChef.Filesystems
byte[] coherent_string = new byte[6];
Array.Copy(sb_sector, 0x1E4, coherent_string, 0, 6); // Coherent UNIX s_fname location
s_fname = StringHandlers.CToString(coherent_string, CurrentEncoding);
string s_fname = StringHandlers.CToString(coherent_string, CurrentEncoding);
Array.Copy(sb_sector, 0x1EA, coherent_string, 0, 6); // Coherent UNIX s_fpack location
s_fpack = StringHandlers.CToString(coherent_string, CurrentEncoding);
string s_fpack = StringHandlers.CToString(coherent_string, CurrentEncoding);
if(s_fname == COH_FNAME && s_fpack == COH_FPACK || s_fname == COH_XXXXX && s_fpack == COH_XXXXX ||
s_fname == COH_XXXXS && s_fpack == COH_XXXXN) return true;
// Now try to identify 7th edition
s_fsize = BitConverter.ToUInt32(sb_sector, 0x002); // 7th edition's s_fsize
s_nfree = BitConverter.ToUInt16(sb_sector, 0x006); // 7th edition's s_nfree
s_ninode = BitConverter.ToUInt16(sb_sector, 0x0D0); // 7th edition's s_ninode
uint s_fsize = BitConverter.ToUInt32(sb_sector, 0x002);
ushort s_nfree = BitConverter.ToUInt16(sb_sector, 0x006);
ushort s_ninode = BitConverter.ToUInt16(sb_sector, 0x0D0);
if(s_fsize <= 0 || s_fsize >= 0xFFFFFFFF || s_nfree <= 0 || s_nfree >= 0xFFFF || s_ninode <= 0 ||
s_ninode >= 0xFFFF) continue;
@@ -197,13 +172,8 @@ namespace DiscImageChef.Filesystems
BigEndianBitConverter.IsLittleEndian =
true; // Start in little endian until we know what are we handling here
int start = 0;
uint magic;
string s_fname, s_fpack;
ushort s_nfree, s_ninode;
uint s_fsize;
bool xenix = false;
bool sysv = false;
bool sysvr4;
bool sys7th = false;
bool coherent = false;
bool xenix3 = false;
@@ -229,7 +199,7 @@ namespace DiscImageChef.Filesystems
foreach(int i in locations)
{
sb_sector = imagePlugin.ReadSectors((ulong)i + partition.Start, sb_size_in_sectors);
magic = BigEndianBitConverter.ToUInt32(sb_sector, 0x3F8); // XENIX magic location
uint magic = BigEndianBitConverter.ToUInt32(sb_sector, 0x3F8);
if(magic == XENIX_MAGIC || magic == SYSV_MAGIC)
{
@@ -295,9 +265,9 @@ namespace DiscImageChef.Filesystems
byte[] coherent_string = new byte[6];
Array.Copy(sb_sector, 0x1E4, coherent_string, 0, 6); // Coherent UNIX s_fname location
s_fname = StringHandlers.CToString(coherent_string, CurrentEncoding);
string s_fname = StringHandlers.CToString(coherent_string, CurrentEncoding);
Array.Copy(sb_sector, 0x1EA, coherent_string, 0, 6); // Coherent UNIX s_fpack location
s_fpack = StringHandlers.CToString(coherent_string, CurrentEncoding);
string s_fpack = StringHandlers.CToString(coherent_string, CurrentEncoding);
if(s_fname == COH_FNAME && s_fpack == COH_FPACK || s_fname == COH_XXXXX && s_fpack == COH_XXXXX ||
s_fname == COH_XXXXS && s_fpack == COH_XXXXN)
@@ -309,9 +279,9 @@ namespace DiscImageChef.Filesystems
}
// Now try to identify 7th edition
s_fsize = BitConverter.ToUInt32(sb_sector, 0x002); // 7th edition's s_fsize
s_nfree = BitConverter.ToUInt16(sb_sector, 0x006); // 7th edition's s_nfree
s_ninode = BitConverter.ToUInt16(sb_sector, 0x0D0); // 7th edition's s_ninode
uint s_fsize = BitConverter.ToUInt32(sb_sector, 0x002);
ushort s_nfree = BitConverter.ToUInt16(sb_sector, 0x006);
ushort s_ninode = BitConverter.ToUInt16(sb_sector, 0x0D0);
if(s_fsize <= 0 || s_fsize >= 0xFFFFFFFF || s_nfree <= 0 || s_nfree >= 0xFFFF || s_ninode <= 0 ||
s_ninode >= 0xFFFF) continue;
@@ -341,7 +311,7 @@ namespace DiscImageChef.Filesystems
if(!sys7th && !sysv && !coherent && !xenix && !xenix3) return;
xmlFSType = new FileSystemType();
XmlFsType = new FileSystemType();
if(xenix || xenix3)
{
@@ -402,22 +372,22 @@ namespace DiscImageChef.Filesystems
uint bs = 512;
sb.AppendLine("XENIX filesystem");
xmlFSType.Type = "XENIX fs";
XmlFsType.Type = "XENIX fs";
switch(xnx_sb.s_type)
{
case 1:
sb.AppendLine("512 bytes per block");
xmlFSType.ClusterSize = 512;
XmlFsType.ClusterSize = 512;
break;
case 2:
sb.AppendLine("1024 bytes per block");
bs = 1024;
xmlFSType.ClusterSize = 1024;
XmlFsType.ClusterSize = 1024;
break;
case 3:
sb.AppendLine("2048 bytes per block");
bs = 2048;
xmlFSType.ClusterSize = 2048;
XmlFsType.ClusterSize = 2048;
break;
default:
sb.AppendFormat("Unknown s_type value: 0x{0:X8}", xnx_sb.s_type).AppendLine();
@@ -458,17 +428,17 @@ namespace DiscImageChef.Filesystems
.AppendLine();
if(xnx_sb.s_time != 0)
{
xmlFSType.ModificationDate = DateHandlers.UNIXToDateTime(xnx_sb.s_time);
xmlFSType.ModificationDateSpecified = true;
XmlFsType.ModificationDate = DateHandlers.UNIXToDateTime(xnx_sb.s_time);
XmlFsType.ModificationDateSpecified = true;
}
sb.AppendFormat("Volume name: {0}", xnx_sb.s_fname).AppendLine();
xmlFSType.VolumeName = xnx_sb.s_fname;
XmlFsType.VolumeName = xnx_sb.s_fname;
sb.AppendFormat("Pack name: {0}", xnx_sb.s_fpack).AppendLine();
if(xnx_sb.s_clean == 0x46) sb.AppendLine("Volume is clean");
else
{
sb.AppendLine("Volume is dirty");
xmlFSType.Dirty = true;
XmlFsType.Dirty = true;
}
}
@@ -477,21 +447,23 @@ namespace DiscImageChef.Filesystems
sb_sector = imagePlugin.ReadSectors((ulong)start + partition.Start, sb_size_in_sectors);
byte[] sysv_strings = new byte[6];
SystemVRelease4SuperBlock sysv_sb = new SystemVRelease4SuperBlock();
sysv_sb.s_type = BigEndianBitConverter.ToUInt32(sb_sector, 0x1FC + offset);
SystemVRelease4SuperBlock sysv_sb = new SystemVRelease4SuperBlock
{
s_type = BigEndianBitConverter.ToUInt32(sb_sector, 0x1FC + offset)
};
uint bs = 512;
switch(sysv_sb.s_type)
{
case 1:
xmlFSType.ClusterSize = 512;
XmlFsType.ClusterSize = 512;
break;
case 2:
bs = 1024;
xmlFSType.ClusterSize = 1024;
XmlFsType.ClusterSize = 1024;
break;
case 3:
bs = 2048;
xmlFSType.ClusterSize = 2048;
XmlFsType.ClusterSize = 2048;
break;
default:
sb.AppendFormat("Unknown s_type value: 0x{0:X8}", sysv_sb.s_type).AppendLine();
@@ -500,7 +472,7 @@ namespace DiscImageChef.Filesystems
sysv_sb.s_fsize = BigEndianBitConverter.ToUInt32(sb_sector, 0x002 + offset);
sysvr4 = sysv_sb.s_fsize * bs <= 0 || sysv_sb.s_fsize * bs != partition.Size;
bool sysvr4 = sysv_sb.s_fsize * bs <= 0 || sysv_sb.s_fsize * bs != partition.Size;
if(sysvr4)
{
@@ -526,7 +498,7 @@ namespace DiscImageChef.Filesystems
Array.Copy(sb_sector, 0x1BC + offset, sysv_strings, 0, 6);
sysv_sb.s_fpack = StringHandlers.CToString(sysv_strings, CurrentEncoding);
sb.AppendLine("System V Release 4 filesystem");
xmlFSType.Type = "SVR4 fs";
XmlFsType.Type = "SVR4 fs";
}
else
{
@@ -552,11 +524,11 @@ namespace DiscImageChef.Filesystems
Array.Copy(sb_sector, 0x1B6 + offset, sysv_strings, 0, 6);
sysv_sb.s_fpack = StringHandlers.CToString(sysv_strings, CurrentEncoding);
sb.AppendLine("System V Release 2 filesystem");
xmlFSType.Type = "SVR2 fs";
XmlFsType.Type = "SVR2 fs";
}
sb.AppendFormat("{0} bytes per block", bs).AppendLine();
xmlFSType.Clusters = sysv_sb.s_fsize;
XmlFsType.Clusters = sysv_sb.s_fsize;
sb.AppendFormat("{0} zones on volume ({1} bytes)", sysv_sb.s_fsize, sysv_sb.s_fsize * bs).AppendLine();
sb.AppendFormat("{0} free zones on volume ({1} bytes)", sysv_sb.s_tfree, sysv_sb.s_tfree * bs)
.AppendLine();
@@ -577,17 +549,17 @@ namespace DiscImageChef.Filesystems
.AppendLine();
if(sysv_sb.s_time != 0)
{
xmlFSType.ModificationDate = DateHandlers.UNIXUnsignedToDateTime(sysv_sb.s_time);
xmlFSType.ModificationDateSpecified = true;
XmlFsType.ModificationDate = DateHandlers.UNIXUnsignedToDateTime(sysv_sb.s_time);
XmlFsType.ModificationDateSpecified = true;
}
sb.AppendFormat("Volume name: {0}", sysv_sb.s_fname).AppendLine();
xmlFSType.VolumeName = sysv_sb.s_fname;
XmlFsType.VolumeName = sysv_sb.s_fname;
sb.AppendFormat("Pack name: {0}", sysv_sb.s_fpack).AppendLine();
if(sysv_sb.s_state == 0x7C269D38 - sysv_sb.s_time) sb.AppendLine("Volume is clean");
else
{
sb.AppendLine("Volume is dirty");
xmlFSType.Dirty = true;
XmlFsType.Dirty = true;
}
}
@@ -615,9 +587,9 @@ namespace DiscImageChef.Filesystems
Array.Copy(sb_sector, 0x1EA, coh_strings, 0, 6);
coh_sb.s_fpack = StringHandlers.CToString(coh_strings, CurrentEncoding);
xmlFSType.Type = "Coherent fs";
xmlFSType.ClusterSize = 512;
xmlFSType.Clusters = coh_sb.s_fsize;
XmlFsType.Type = "Coherent fs";
XmlFsType.ClusterSize = 512;
XmlFsType.Clusters = coh_sb.s_fsize;
sb.AppendLine("Coherent UNIX filesystem");
if(imagePlugin.GetSectorSize() != 512)
@@ -640,11 +612,11 @@ namespace DiscImageChef.Filesystems
.AppendLine();
if(coh_sb.s_time != 0)
{
xmlFSType.ModificationDate = DateHandlers.UNIXUnsignedToDateTime(coh_sb.s_time);
xmlFSType.ModificationDateSpecified = true;
XmlFsType.ModificationDate = DateHandlers.UNIXUnsignedToDateTime(coh_sb.s_time);
XmlFsType.ModificationDateSpecified = true;
}
sb.AppendFormat("Volume name: {0}", coh_sb.s_fname).AppendLine();
xmlFSType.VolumeName = coh_sb.s_fname;
XmlFsType.VolumeName = coh_sb.s_fname;
sb.AppendFormat("Pack name: {0}", coh_sb.s_fpack).AppendLine();
}
@@ -672,9 +644,9 @@ namespace DiscImageChef.Filesystems
Array.Copy(sb_sector, 0x1B2, sys7_strings, 0, 6);
v7_sb.s_fpack = StringHandlers.CToString(sys7_strings, CurrentEncoding);
xmlFSType.Type = "UNIX 7th Edition fs";
xmlFSType.ClusterSize = 512;
xmlFSType.Clusters = v7_sb.s_fsize;
XmlFsType.Type = "UNIX 7th Edition fs";
XmlFsType.ClusterSize = 512;
XmlFsType.Clusters = v7_sb.s_fsize;
sb.AppendLine("UNIX 7th Edition filesystem");
if(imagePlugin.GetSectorSize() != 512)
sb
@@ -695,11 +667,11 @@ namespace DiscImageChef.Filesystems
.AppendLine();
if(v7_sb.s_time != 0)
{
xmlFSType.ModificationDate = DateHandlers.UNIXUnsignedToDateTime(v7_sb.s_time);
xmlFSType.ModificationDateSpecified = true;
XmlFsType.ModificationDate = DateHandlers.UNIXUnsignedToDateTime(v7_sb.s_time);
XmlFsType.ModificationDateSpecified = true;
}
sb.AppendFormat("Volume name: {0}", v7_sb.s_fname).AppendLine();
xmlFSType.VolumeName = v7_sb.s_fname;
XmlFsType.VolumeName = v7_sb.s_fname;
sb.AppendFormat("Pack name: {0}", v7_sb.s_fpack).AppendLine();
}