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Aaru/DiscImageChef.Filesystems/ZFS.cs

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2017-05-19 20:28:49 +01:00
// /***************************************************************************
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// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename : ZFS.cs
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// Component : Component
//
// --[ Description ] ----------------------------------------------------------
//
// Identifies the ZFS filesystem and shows information.
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//
// --[ 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/>.
//
// ----------------------------------------------------------------------------
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// Copyright © 2011-2017 Natalia Portillo
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// ****************************************************************************/
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using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
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namespace DiscImageChef.Filesystems
{
/*
* The ZFS on-disk structure is quite undocumented, so this has been checked using several test images and reading the comments and headers (but not the code)
* of ZFS-On-Linux.
*
* The most basic structure, the vdev label, is as follows:
* 8KiB of blank space
* 8KiB reserved for boot code, stored as a ZIO block with magic and checksum
* 112KiB of nvlist, usually encoded using XDR
* 128KiB of copies of the 1KiB uberblock
*
* Two vdev labels, L0 and L1 are stored at the start of the vdev.
* Another two, L2 and L3 are stored at the end.
*
* The nvlist is nothing more than a double linked list of name/value pairs where name is a string and value is an arbitrary type (and can be an array of it).
* On-disk they are stored sequentially (no pointers) and can be encoded in XDR (an old Sun serialization method that stores everything as 4 bytes chunks) or
* natively (that is as the host natively stores that values, for example on Intel an extended float would be 10 bytes (80 bit).
* 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.
*/
class ZFS : Filesystem
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{
const ulong ZEC_Magic = 0x0210DA7AB10C7A11;
const ulong ZEC_Cigam = 0x117A0CB17ADA1002;
struct ZIO_Checksum
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
public ulong[] word;
}
/// <summary>
/// There is an empty ZIO at sector 16 or sector 31, with magic and checksum, to detect it is really ZFS I suppose.
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct ZIO_Empty
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 472)]
public byte[] empty;
public ulong magic;
public ZIO_Checksum checksum;
}
// 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_XDR = 1;
/// <summary>
/// This structure indicates which encoding method and endianness is used to encode the nvlist
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct NVS_Method
{
public byte encoding;
public byte endian;
public byte reserved1;
public byte reserved2;
}
/// <summary>
/// This structure gives information about the encoded nvlist
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct NVS_XDR_Header
{
public NVS_Method encodingAndEndian;
public uint version;
public uint flags;
}
enum NVS_DataTypes : uint
{
DATA_TYPE_UNKNOWN = 0,
DATA_TYPE_BOOLEAN,
DATA_TYPE_BYTE,
DATA_TYPE_INT16,
DATA_TYPE_UINT16,
DATA_TYPE_INT32,
DATA_TYPE_UINT32,
DATA_TYPE_INT64,
DATA_TYPE_UINT64,
DATA_TYPE_STRING,
DATA_TYPE_BYTE_ARRAY,
DATA_TYPE_INT16_ARRAY,
DATA_TYPE_UINT16_ARRAY,
DATA_TYPE_INT32_ARRAY,
DATA_TYPE_UINT32_ARRAY,
DATA_TYPE_INT64_ARRAY,
DATA_TYPE_UINT64_ARRAY,
DATA_TYPE_STRING_ARRAY,
DATA_TYPE_HRTIME,
DATA_TYPE_NVLIST,
DATA_TYPE_NVLIST_ARRAY,
DATA_TYPE_BOOLEAN_VALUE,
DATA_TYPE_INT8,
DATA_TYPE_UINT8,
DATA_TYPE_BOOLEAN_ARRAY,
DATA_TYPE_INT8_ARRAY,
DATA_TYPE_UINT8_ARRAY,
DATA_TYPE_DOUBLE
}
/// <summary>
/// This represent an encoded nvpair (an item of an nvlist)
/// </summary>
struct NVS_Item
{
/// <summary>
/// Size in bytes when encoded in XDR
/// </summary>
public uint encodedSize;
/// <summary>
/// Size in bytes when decoded
/// </summary>
public uint decodedSize;
/// <summary>
/// On disk, it is null-padded for alignment to 4 bytes and prepended by a 4 byte length indicator
/// </summary>
public string name;
/// <summary>
/// Data type
/// </summary>
public NVS_DataTypes dataType;
/// <summary>
/// How many elements are here
/// </summary>
public uint elements;
/// <summary>
/// On disk size is relative to <see cref="dataType"/> and <see cref="elements"/> always aligned to 4 bytes
/// </summary>
public object value;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct DVA
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
public ulong[] word;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct SPA_BlockPointer
{
/// <summary>
/// Data virtual address
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
public DVA[] dataVirtualAddress;
/// <summary>
/// Block properties
/// </summary>
public ulong properties;
/// <summary>
/// Reserved for future expansion
/// </summary>
public ulong[] padding;
/// <summary>
/// TXG when block was allocated
/// </summary>
public ulong birthTxg;
/// <summary>
/// Transaction group at birth
/// </summary>
public ulong birth;
/// <summary>
/// Fill count
/// </summary>
public ulong fill;
public ZIO_Checksum checksum;
}
const ulong Uberblock_Magic = 0x00BAB10C;
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct ZFS_Uberblock
{
public ulong magic;
public ulong spaVersion;
public ulong lastTxg;
public ulong guidSum;
public ulong timestamp;
public SPA_BlockPointer mosPtr;
public ulong softwareVersion;
}
const uint ZFS_Magic = 0x58465342;
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public ZFS()
{
Name = "ZFS Filesystem Plugin";
PluginUUID = new Guid("0750014F-A714-4692-A369-E23F6EC3659C");
}
public ZFS(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
{
Name = "ZFS Filesystem Plugin";
PluginUUID = new Guid("0750014F-A714-4692-A369-E23F6EC3659C");
}
public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd)
{
if(imagePlugin.GetSectorSize() < 512)
return false;
byte[] sector;
ulong magic;
if(partitionStart + 31 < partitionEnd)
{
sector = imagePlugin.ReadSector(partitionStart + 31);
magic = BitConverter.ToUInt64(sector, 0x1D8);
if(magic == ZEC_Magic || magic == ZEC_Cigam)
return true;
}
if(partitionStart + 16 < partitionEnd)
{
sector = imagePlugin.ReadSector(partitionStart + 16);
magic = BitConverter.ToUInt64(sector, 0x1D8);
if(magic == ZEC_Magic || magic == ZEC_Cigam)
return true;
}
return false;
}
public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionStart, ulong partitionEnd, out string information)
{
information = "";
if(imagePlugin.GetSectorSize() < 512)
return;
byte[] sector;
ulong magic;
ulong nvlistOff = 32;
uint nvlistLen = 114688 / imagePlugin.ImageInfo.sectorSize;
byte[] nvlist;
if(partitionStart + 31 < partitionEnd)
{
sector = imagePlugin.ReadSector(partitionStart + 31);
magic = BitConverter.ToUInt64(sector, 0x1D8);
if(magic == ZEC_Magic || magic == ZEC_Cigam)
nvlistOff = 32;
}
if(partitionStart + 16 < partitionEnd)
{
sector = imagePlugin.ReadSector(partitionStart + 16);
magic = BitConverter.ToUInt64(sector, 0x1D8);
if(magic == ZEC_Magic || magic == ZEC_Cigam)
nvlistOff = 17;
}
StringBuilder sb = new StringBuilder();
sb.AppendLine("ZFS filesystem");
nvlist = imagePlugin.ReadSectors(partitionStart + nvlistOff, nvlistLen);
Dictionary<string, NVS_Item> decodedNvList;
if(!DecodeNvList(nvlist, out decodedNvList))
sb.AppendLine("Could not decode nvlist");
else
sb.AppendLine(PrintNvList(decodedNvList));
information = sb.ToString();
NVS_Item tmpObj;
xmlFSType = new Schemas.FileSystemType();
xmlFSType.Type = "ZFS filesystem";
if(decodedNvList.TryGetValue("name", out tmpObj))
xmlFSType.VolumeName = (string)tmpObj.value;
if(decodedNvList.TryGetValue("guid", out tmpObj))
xmlFSType.VolumeSerial = string.Format("{0}", (ulong)tmpObj.value);
if(decodedNvList.TryGetValue("pool_guid", out tmpObj))
xmlFSType.VolumeSetIdentifier = string.Format("{0}", (ulong)tmpObj.value);
}
static bool DecodeNvList(byte[] nvlist, out Dictionary<string, NVS_Item> decodedNvList)
{
byte[] tmp = new byte[nvlist.Length - 4];
Array.Copy(nvlist, 4, tmp, 0, nvlist.Length - 4);
bool xdr = nvlist[0] == 1;
bool littleEndian = nvlist[1] == 1;
return DecodeNvList(tmp, out decodedNvList, xdr, littleEndian);
}
// TODO: Decode native nvlist
static bool DecodeNvList(byte[] nvlist, out Dictionary<string, NVS_Item> decodedNvList, bool xdr, bool littleEndian)
{
decodedNvList = new Dictionary<string, NVS_Item>();
if(nvlist == null || nvlist.Length < 16)
return false;
int offset = 0;
if(!xdr)
return false;
BigEndianBitConverter.IsLittleEndian = littleEndian;
offset = 8;
while(offset < nvlist.Length)
{
uint nameLength;
byte[] nameBytes;
NVS_Item item = new NVS_Item();
int currOff = offset;
item.encodedSize = BigEndianBitConverter.ToUInt32(nvlist, offset);
// Finished
if(item.encodedSize == 0)
break;
offset += 4;
item.decodedSize = BigEndianBitConverter.ToUInt32(nvlist, offset);
offset += 4;
nameLength = BigEndianBitConverter.ToUInt32(nvlist, offset);
offset += 4;
if(nameLength % 4 > 0)
nameLength += 4 - (nameLength % 4);
nameBytes = new byte[nameLength];
Array.Copy(nvlist, offset, nameBytes, 0, nameLength);
item.name = StringHandlers.CToString(nameBytes);
offset += (int)nameLength;
item.dataType = (NVS_DataTypes)BigEndianBitConverter.ToUInt32(nvlist, offset);
offset += 4;
item.elements = BigEndianBitConverter.ToUInt32(nvlist, offset);
offset += 4;
if(item.elements == 0)
{
decodedNvList.Add(item.name, item);
continue;
}
switch(item.dataType)
{
case NVS_DataTypes.DATA_TYPE_BOOLEAN:
case NVS_DataTypes.DATA_TYPE_BOOLEAN_ARRAY:
case NVS_DataTypes.DATA_TYPE_BOOLEAN_VALUE:
if(item.elements > 1)
{
bool[] boolArray = new bool[item.elements];
for(int i = 0; i < item.elements; i++)
{
uint temp = BigEndianBitConverter.ToUInt32(nvlist, offset);
boolArray[i] = temp > 0;
offset += 4;
}
item.value = boolArray;
}
else
{
uint temp = BigEndianBitConverter.ToUInt32(nvlist, offset);
item.value = (temp > 0);
offset += 4;
}
break;
case NVS_DataTypes.DATA_TYPE_BYTE:
case NVS_DataTypes.DATA_TYPE_BYTE_ARRAY:
case NVS_DataTypes.DATA_TYPE_UINT8:
case NVS_DataTypes.DATA_TYPE_UINT8_ARRAY:
if(item.elements > 1)
{
byte[] byteArray = new byte[item.elements];
Array.Copy(nvlist, offset, byteArray, 0, item.elements);
offset += (int)item.elements;
if(item.elements % 4 > 0)
offset += 4 - (int)(item.elements % 4);
item.value = byteArray;
}
else
{
item.value = nvlist[offset];
offset += 4;
}
break;
case NVS_DataTypes.DATA_TYPE_DOUBLE:
if(item.elements > 1)
{
double[] doubleArray = new double[item.elements];
for(int i = 0; i < item.elements; i++)
{
double temp = BigEndianBitConverter.ToDouble(nvlist, offset);
doubleArray[i] = temp;
offset += 8;
}
item.value = doubleArray;
}
else
{
item.value = BigEndianBitConverter.ToDouble(nvlist, offset);
offset += 8;
}
break;
case NVS_DataTypes.DATA_TYPE_HRTIME:
if(item.elements > 1)
{
DateTime[] hrtimeArray = new DateTime[item.elements];
for(int i = 0; i < item.elements; i++)
{
DateTime temp = DateHandlers.UNIXHrTimeToDateTime(BigEndianBitConverter.ToUInt64(nvlist, offset));
hrtimeArray[i] = temp;
offset += 8;
}
item.value = hrtimeArray;
}
else
{
item.value = DateHandlers.UNIXHrTimeToDateTime(BigEndianBitConverter.ToUInt64(nvlist, offset));
offset += 8;
}
break;
case NVS_DataTypes.DATA_TYPE_INT16:
case NVS_DataTypes.DATA_TYPE_INT16_ARRAY:
if(item.elements > 1)
{
short[] shortArray = new short[item.elements];
for(int i = 0; i < item.elements; i++)
{
short temp = BigEndianBitConverter.ToInt16(nvlist, offset);
shortArray[i] = temp;
offset += 4;
}
item.value = shortArray;
}
else
{
item.value = BigEndianBitConverter.ToInt16(nvlist, offset);
offset += 4;
}
break;
case NVS_DataTypes.DATA_TYPE_INT32:
case NVS_DataTypes.DATA_TYPE_INT32_ARRAY:
if(item.elements > 1)
{
int[] intArray = new int[item.elements];
for(int i = 0; i < item.elements; i++)
{
int temp = BigEndianBitConverter.ToInt32(nvlist, offset);
intArray[i] = temp;
offset += 4;
}
item.value = intArray;
}
else
{
item.value = BigEndianBitConverter.ToInt32(nvlist, offset);
offset += 4;
}
break;
case NVS_DataTypes.DATA_TYPE_INT64:
case NVS_DataTypes.DATA_TYPE_INT64_ARRAY:
if(item.elements > 1)
{
long[] longArray = new long[item.elements];
for(int i = 0; i < item.elements; i++)
{
long temp = BigEndianBitConverter.ToInt64(nvlist, offset);
longArray[i] = temp;
offset += 8;
}
item.value = longArray;
}
else
{
item.value = BigEndianBitConverter.ToInt64(nvlist, offset);
offset += 8;
}
break;
case NVS_DataTypes.DATA_TYPE_INT8:
case NVS_DataTypes.DATA_TYPE_INT8_ARRAY:
if(item.elements > 1)
{
sbyte[] sbyteArray = new sbyte[item.elements];
for(int i = 0; i < item.elements; i++)
{
sbyte temp = (sbyte)nvlist[offset];
sbyteArray[i] = temp;
offset++;
}
item.value = sbyteArray;
if(sbyteArray.Length % 4 > 0)
offset += 4 - sbyteArray.Length % 4;
}
else
{
item.value = BigEndianBitConverter.ToInt64(nvlist, offset);
offset += 4;
}
break;
case NVS_DataTypes.DATA_TYPE_STRING:
case NVS_DataTypes.DATA_TYPE_STRING_ARRAY:
if(item.elements > 1)
{
string[] stringArray = new string[item.elements];
for(int i = 0; i < item.elements; i++)
{
uint strLength = BigEndianBitConverter.ToUInt32(nvlist, offset);
offset += 4;
byte[] strBytes = new byte[strLength];
Array.Copy(nvlist, offset, strBytes, 0, strLength);
stringArray[i] = StringHandlers.CToString(strBytes);
offset += (int)strLength;
if(strLength % 4 > 0)
offset += 4 - (int)(strLength % 4);
}
item.value = stringArray;
}
else
{
uint strLength = BigEndianBitConverter.ToUInt32(nvlist, offset);
offset += 4;
byte[] strBytes = new byte[strLength];
Array.Copy(nvlist, offset, strBytes, 0, strLength);
item.value = StringHandlers.CToString(strBytes);
offset += (int)strLength;
if(strLength % 4 > 0)
offset += 4 - (int)(strLength % 4);
}
break;
case NVS_DataTypes.DATA_TYPE_UINT16:
case NVS_DataTypes.DATA_TYPE_UINT16_ARRAY:
if(item.elements > 1)
{
ushort[] ushortArray = new ushort[item.elements];
for(int i = 0; i < item.elements; i++)
{
ushort temp = BigEndianBitConverter.ToUInt16(nvlist, offset);
ushortArray[i] = temp;
offset += 4;
}
item.value = ushortArray;
}
else
{
item.value = BigEndianBitConverter.ToUInt16(nvlist, offset);
offset += 4;
}
break;
case NVS_DataTypes.DATA_TYPE_UINT32:
case NVS_DataTypes.DATA_TYPE_UINT32_ARRAY:
if(item.elements > 1)
{
uint[] uintArray = new uint[item.elements];
for(int i = 0; i < item.elements; i++)
{
uint temp = BigEndianBitConverter.ToUInt32(nvlist, offset);
uintArray[i] = temp;
offset += 4;
}
item.value = uintArray;
}
else
{
item.value = BigEndianBitConverter.ToUInt32(nvlist, offset);
offset += 4;
}
break;
case NVS_DataTypes.DATA_TYPE_UINT64:
case NVS_DataTypes.DATA_TYPE_UINT64_ARRAY:
if(item.elements > 1)
{
ulong[] ulongArray = new ulong[item.elements];
for(int i = 0; i < item.elements; i++)
{
ulong temp = BigEndianBitConverter.ToUInt64(nvlist, offset);
ulongArray[i] = temp;
offset += 8;
}
item.value = ulongArray;
}
else
{
item.value = BigEndianBitConverter.ToUInt64(nvlist, offset);
offset += 8;
}
break;
case NVS_DataTypes.DATA_TYPE_NVLIST:
if(item.elements > 1)
goto default;
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, xdr, littleEndian))
item.value = subList;
else
goto default;
offset = (int)(currOff + item.encodedSize);
break;
default:
byte[] unknown = new byte[item.encodedSize - (offset - currOff)];
Array.Copy(nvlist, offset, unknown, 0, unknown.Length);
item.value = unknown;
offset = (int)(currOff + item.encodedSize);
break;
}
decodedNvList.Add(item.name, item);
}
return decodedNvList.Count > 0;
}
static string PrintNvList(Dictionary<string, NVS_Item> decodedNvList)
{
StringBuilder sb = new StringBuilder();
foreach(NVS_Item item in decodedNvList.Values)
{
if(item.elements == 0)
{
sb.AppendFormat("{0} is not set", item.name).AppendLine();
continue;
}
switch(item.dataType)
{
case NVS_DataTypes.DATA_TYPE_BOOLEAN:
case NVS_DataTypes.DATA_TYPE_BOOLEAN_ARRAY:
case NVS_DataTypes.DATA_TYPE_BOOLEAN_VALUE:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((bool[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (bool)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_BYTE:
case NVS_DataTypes.DATA_TYPE_BYTE_ARRAY:
case NVS_DataTypes.DATA_TYPE_UINT8:
case NVS_DataTypes.DATA_TYPE_UINT8_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((byte[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (byte)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_DOUBLE:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((double[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (double)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_HRTIME:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((DateTime[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (DateTime)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_INT16:
case NVS_DataTypes.DATA_TYPE_INT16_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((short[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (short)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_INT32:
case NVS_DataTypes.DATA_TYPE_INT32_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((int[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (int)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_INT64:
case NVS_DataTypes.DATA_TYPE_INT64_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((long[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (long)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_INT8:
case NVS_DataTypes.DATA_TYPE_INT8_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((sbyte[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (sbyte)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_STRING:
case NVS_DataTypes.DATA_TYPE_STRING_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((string[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (string)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_UINT16:
case NVS_DataTypes.DATA_TYPE_UINT16_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((ushort[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (ushort)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_UINT32:
case NVS_DataTypes.DATA_TYPE_UINT32_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((uint[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (uint)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_UINT64:
case NVS_DataTypes.DATA_TYPE_UINT64_ARRAY:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = {2}", item.name, i, ((ulong[])item.value)[i]).AppendLine();
}
else
sb.AppendFormat("{0} = {1}", item.name, (ulong)item.value).AppendLine();
break;
case NVS_DataTypes.DATA_TYPE_NVLIST:
if(item.elements == 1)
sb.AppendFormat("{0} =\n{1}", item.name, PrintNvList((Dictionary<string, NVS_Item>)item.value)).AppendLine();
else
sb.AppendFormat("{0} = {1} elements nvlist[], unable to print", item.name, item.elements).AppendLine();
break;
default:
if(item.elements > 1)
{
for(int i = 0; i < item.elements; i++)
sb.AppendFormat("{0}[{1}] = Unknown data type {2}", item.name, i, item.dataType).AppendLine();
}
else
sb.AppendFormat("{0} = Unknown data type {1}", item.name, item.dataType).AppendLine();
break;
}
}
return sb.ToString();
}
public override Errno Mount()
{
return Errno.NotImplemented;
}
public override Errno Mount(bool debug)
{
return Errno.NotImplemented;
}
public override Errno Unmount()
{
return Errno.NotImplemented;
}
public override Errno MapBlock(string path, long fileBlock, ref long deviceBlock)
{
return Errno.NotImplemented;
}
public override Errno GetAttributes(string path, ref FileAttributes attributes)
{
return Errno.NotImplemented;
2016-09-18 05:09:02 +01:00
}
public override Errno ListXAttr(string path, ref List<string> xattrs)
{
return Errno.NotImplemented;
}
public override Errno GetXattr(string path, string xattr, ref byte[] buf)
{
return Errno.NotImplemented;
}
public override Errno Read(string path, long offset, long size, ref byte[] buf)
{
return Errno.NotImplemented;
}
public override Errno ReadDir(string path, ref List<string> contents)
{
return Errno.NotImplemented;
}
public override Errno StatFs(ref FileSystemInfo stat)
{
return Errno.NotImplemented;
}
public override Errno Stat(string path, ref FileEntryInfo stat)
{
return Errno.NotImplemented;
}
public override Errno ReadLink(string path, ref string dest)
{
return Errno.NotImplemented;
}
}
}