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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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60
DiscImageChef.Filesystems/ZFS.cs
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@@ -32,6 +32,7 @@
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.InteropServices;
using System.Text;
using DiscImageChef.CommonTypes;
@@ -59,10 +60,11 @@ namespace DiscImageChef.Filesystems
* It can also be encoded little or big endian.
* Because of this variations, ZFS stored a header indicating the used encoding and endianess before the encoded nvlist.
*/
[SuppressMessage("ReSharper", "InconsistentNaming")]
public class ZFS : Filesystem
{
const ulong ZEC_Magic = 0x0210DA7AB10C7A11;
const ulong ZEC_Cigam = 0x117A0CB17ADA1002;
const ulong ZEC_MAGIC = 0x0210DA7AB10C7A11;
const ulong ZEC_CIGAM = 0x117A0CB17ADA1002;
struct ZIO_Checksum
{
@@ -81,9 +83,9 @@ namespace DiscImageChef.Filesystems
}
// These parameters define how the nvlist is stored
const byte NVS_LittleEndian = 1;
const byte NVS_BigEndian = 0;
const byte NVS_Native = 0;
const byte NVS_LITTLE_ENDIAN = 1;
const byte NVS_BIG_ENDIAN = 0;
const byte NVS_NATIVE = 0;
const byte NVS_XDR = 1;
/// <summary>
@@ -173,7 +175,7 @@ namespace DiscImageChef.Filesystems
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct DVA
struct DVA
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)] public ulong[] word;
}
@@ -208,7 +210,7 @@ namespace DiscImageChef.Filesystems
public ZIO_Checksum checksum;
}
const ulong Uberblock_Magic = 0x00BAB10C;
const ulong UBERBLOCK_MAGIC = 0x00BAB10C;
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct ZFS_Uberblock
@@ -222,19 +224,19 @@ namespace DiscImageChef.Filesystems
public ulong softwareVersion;
}
const uint ZFS_Magic = 0x58465342;
const uint ZFS_MAGIC = 0x58465342;
public ZFS()
{
Name = "ZFS Filesystem Plugin";
PluginUUID = new Guid("0750014F-A714-4692-A369-E23F6EC3659C");
PluginUuid = new Guid("0750014F-A714-4692-A369-E23F6EC3659C");
CurrentEncoding = Encoding.UTF8;
}
public ZFS(Encoding encoding)
{
Name = "ZFS Filesystem Plugin";
PluginUUID = new Guid("0750014F-A714-4692-A369-E23F6EC3659C");
PluginUuid = new Guid("0750014F-A714-4692-A369-E23F6EC3659C");
// ZFS is always UTF-8
CurrentEncoding = Encoding.UTF8;
}
@@ -242,7 +244,7 @@ namespace DiscImageChef.Filesystems
public ZFS(ImagePlugin imagePlugin, Partition partition, Encoding encoding)
{
Name = "ZFS Filesystem Plugin";
PluginUUID = new Guid("0750014F-A714-4692-A369-E23F6EC3659C");
PluginUuid = new Guid("0750014F-A714-4692-A369-E23F6EC3659C");
// ZFS is always UTF-8
CurrentEncoding = Encoding.UTF8;
}
@@ -258,16 +260,14 @@ namespace DiscImageChef.Filesystems
{
sector = imagePlugin.ReadSector(partition.Start + 31);
magic = BitConverter.ToUInt64(sector, 0x1D8);
if(magic == ZEC_Magic || magic == ZEC_Cigam) return true;
if(magic == ZEC_MAGIC || magic == ZEC_CIGAM) return true;
}
if(partition.Start + 16 >= partition.End) return false;
sector = imagePlugin.ReadSector(partition.Start + 16);
magic = BitConverter.ToUInt64(sector, 0x1D8);
if(magic == ZEC_Magic || magic == ZEC_Cigam) return true;
return false;
return magic == ZEC_MAGIC || magic == ZEC_CIGAM;
}
public override void GetInformation(ImagePlugin imagePlugin, Partition partition,
@@ -281,42 +281,38 @@ namespace DiscImageChef.Filesystems
ulong nvlistOff = 32;
uint nvlistLen = 114688 / imagePlugin.ImageInfo.SectorSize;
byte[] nvlist;
if(partition.Start + 31 < partition.End)
{
sector = imagePlugin.ReadSector(partition.Start + 31);
magic = BitConverter.ToUInt64(sector, 0x1D8);
if(magic == ZEC_Magic || magic == ZEC_Cigam) nvlistOff = 32;
if(magic == ZEC_MAGIC || magic == ZEC_CIGAM) nvlistOff = 32;
}
if(partition.Start + 16 < partition.End)
{
sector = imagePlugin.ReadSector(partition.Start + 16);
magic = BitConverter.ToUInt64(sector, 0x1D8);
if(magic == ZEC_Magic || magic == ZEC_Cigam) nvlistOff = 17;
if(magic == ZEC_MAGIC || magic == ZEC_CIGAM) nvlistOff = 17;
}
StringBuilder sb = new StringBuilder();
sb.AppendLine("ZFS filesystem");
nvlist = imagePlugin.ReadSectors(partition.Start + nvlistOff, nvlistLen);
Dictionary<string, NVS_Item> decodedNvList;
byte[] nvlist = imagePlugin.ReadSectors(partition.Start + nvlistOff, nvlistLen);
if(!DecodeNvList(nvlist, out decodedNvList)) sb.AppendLine("Could not decode nvlist");
else sb.AppendLine(PrintNvList(decodedNvList));
sb.AppendLine(!DecodeNvList(nvlist, out Dictionary<string, NVS_Item> decodedNvList)
? "Could not decode nvlist"
: PrintNvList(decodedNvList));
information = sb.ToString();
NVS_Item tmpObj;
xmlFSType = new FileSystemType();
xmlFSType.Type = "ZFS filesystem";
if(decodedNvList.TryGetValue("name", out tmpObj)) xmlFSType.VolumeName = (string)tmpObj.value;
XmlFsType = new FileSystemType {Type = "ZFS filesystem"};
if(decodedNvList.TryGetValue("name", out NVS_Item tmpObj)) XmlFsType.VolumeName = (string)tmpObj.value;
if(decodedNvList.TryGetValue("guid", out tmpObj))
xmlFSType.VolumeSerial = $"{(ulong)tmpObj.value}";
XmlFsType.VolumeSerial = $"{(ulong)tmpObj.value}";
if(decodedNvList.TryGetValue("pool_guid", out tmpObj))
xmlFSType.VolumeSetIdentifier = $"{(ulong)tmpObj.value}";
XmlFsType.VolumeSetIdentifier = $"{(ulong)tmpObj.value}";
}
static bool DecodeNvList(byte[] nvlist, out Dictionary<string, NVS_Item> decodedNvList)
@@ -346,7 +342,6 @@ namespace DiscImageChef.Filesystems
while(offset < nvlist.Length)
{
uint nameLength;
byte[] nameBytes;
NVS_Item item = new NVS_Item();
int currOff = offset;
@@ -361,7 +356,7 @@ namespace DiscImageChef.Filesystems
nameLength = BigEndianBitConverter.ToUInt32(nvlist, offset);
offset += 4;
if(nameLength % 4 > 0) nameLength += 4 - nameLength % 4;
nameBytes = new byte[nameLength];
byte[] nameBytes = new byte[nameLength];
Array.Copy(nvlist, offset, nameBytes, 0, nameLength);
item.name = StringHandlers.CToString(nameBytes);
offset += (int)nameLength;
@@ -644,8 +639,7 @@ namespace DiscImageChef.Filesystems
byte[] subListBytes = new byte[item.encodedSize - (offset - currOff)];
Array.Copy(nvlist, offset, subListBytes, 0, subListBytes.Length);
Dictionary<string, NVS_Item> subList;
if(DecodeNvList(subListBytes, out subList, true, littleEndian)) item.value = subList;
if(DecodeNvList(subListBytes, out Dictionary<string, NVS_Item> subList, true, littleEndian)) item.value = subList;
else goto default;
offset = (int)(currOff + item.encodedSize);
break;