mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 11:14:25 +00:00
239 lines
10 KiB
C#
239 lines
10 KiB
C#
/***************************************************************************
|
|
FileSystem identifier and checker
|
|
----------------------------------------------------------------------------
|
|
|
|
Filename : NTFS.cs
|
|
Version : 1.0
|
|
Author(s) : Natalia Portillo
|
|
|
|
Component : Filesystem plugins
|
|
|
|
Revision : $Revision$
|
|
Last change by : $Author$
|
|
Date : $Date$
|
|
|
|
--[ Description ] ----------------------------------------------------------
|
|
|
|
Identifies Windows NT FileSystem (aka NTFS) and shows information.
|
|
|
|
--[ License ] --------------------------------------------------------------
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation, either version 3 of the
|
|
License, or (at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
----------------------------------------------------------------------------
|
|
Copyright (C) 2011-2014 Claunia.com
|
|
****************************************************************************/
|
|
//$Id$
|
|
|
|
using System;
|
|
using System.Text;
|
|
using FileSystemIDandChk;
|
|
|
|
// Information from Inside Windows NT
|
|
namespace FileSystemIDandChk.Plugins
|
|
{
|
|
class NTFS : Plugin
|
|
{
|
|
public NTFS(PluginBase Core)
|
|
{
|
|
Name = "New Technology File System (NTFS)";
|
|
PluginUUID = new Guid("33513B2C-1e6d-4d21-a660-0bbc789c3871");
|
|
}
|
|
|
|
public override bool Identify(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset)
|
|
{
|
|
byte[] eigth_bytes = new byte[8];
|
|
byte signature1, fats_no;
|
|
UInt16 spfat, signature2;
|
|
string oem_name;
|
|
|
|
byte[] ntfs_bpb = imagePlugin.ReadSector(0 + partitionOffset);
|
|
|
|
Array.Copy(ntfs_bpb, 0x003, eigth_bytes, 0, 8);
|
|
oem_name = StringHandlers.CToString(eigth_bytes);
|
|
|
|
if (oem_name != "NTFS ")
|
|
return false;
|
|
|
|
fats_no = ntfs_bpb[0x010];
|
|
|
|
if (fats_no != 0)
|
|
return false;
|
|
|
|
spfat = BitConverter.ToUInt16(ntfs_bpb, 0x016);
|
|
|
|
if (spfat != 0)
|
|
return false;
|
|
|
|
signature1 = ntfs_bpb[0x026];
|
|
|
|
if (signature1 != 0x80)
|
|
return false;
|
|
|
|
signature2 = BitConverter.ToUInt16(ntfs_bpb, 0x1FE);
|
|
|
|
return signature2 == 0xAA55;
|
|
|
|
}
|
|
|
|
public override void GetInformation(ImagePlugins.ImagePlugin imagePlugin, ulong partitionOffset, out string information)
|
|
{
|
|
information = "";
|
|
|
|
StringBuilder sb = new StringBuilder();
|
|
|
|
byte[] ntfs_bpb = imagePlugin.ReadSector(0 + partitionOffset);
|
|
|
|
NTFS_BootBlock ntfs_bb = new NTFS_BootBlock();
|
|
|
|
byte[] oem_name = new byte[8];
|
|
|
|
ntfs_bb.jmp1 = ntfs_bpb[0x000];
|
|
ntfs_bb.jmp2 = BitConverter.ToUInt16(ntfs_bpb, 0x001);
|
|
Array.Copy(ntfs_bpb, 0x003, oem_name, 0, 8);
|
|
ntfs_bb.OEMName = StringHandlers.CToString(oem_name);
|
|
ntfs_bb.bps = BitConverter.ToUInt16(ntfs_bpb, 0x00B);
|
|
ntfs_bb.spc = ntfs_bpb[0x00D];
|
|
ntfs_bb.rsectors = BitConverter.ToUInt16(ntfs_bpb, 0x00E);
|
|
ntfs_bb.fats_no = ntfs_bpb[0x010];
|
|
ntfs_bb.root_ent = BitConverter.ToUInt16(ntfs_bpb, 0x011);
|
|
ntfs_bb.sml_sectors = BitConverter.ToUInt16(ntfs_bpb, 0x013);
|
|
ntfs_bb.media = ntfs_bpb[0x015];
|
|
ntfs_bb.spfat = BitConverter.ToUInt16(ntfs_bpb, 0x016);
|
|
ntfs_bb.sptrk = BitConverter.ToUInt16(ntfs_bpb, 0x018);
|
|
ntfs_bb.heads = BitConverter.ToUInt16(ntfs_bpb, 0x01A);
|
|
ntfs_bb.hsectors = BitConverter.ToUInt32(ntfs_bpb, 0x01C);
|
|
ntfs_bb.big_sectors = BitConverter.ToUInt32(ntfs_bpb, 0x020);
|
|
ntfs_bb.drive_no = ntfs_bpb[0x024];
|
|
ntfs_bb.nt_flags = ntfs_bpb[0x025];
|
|
ntfs_bb.signature1 = ntfs_bpb[0x026];
|
|
ntfs_bb.dummy = ntfs_bpb[0x027];
|
|
ntfs_bb.sectors = BitConverter.ToInt64(ntfs_bpb, 0x028);
|
|
ntfs_bb.mft_lsn = BitConverter.ToInt64(ntfs_bpb, 0x030);
|
|
ntfs_bb.mftmirror_lsn = BitConverter.ToInt64(ntfs_bpb, 0x038);
|
|
ntfs_bb.mft_rc_clusters = (sbyte)ntfs_bpb[0x040];
|
|
ntfs_bb.dummy2 = ntfs_bpb[0x041];
|
|
ntfs_bb.dummy3 = BitConverter.ToUInt16(ntfs_bpb, 0x042);
|
|
ntfs_bb.index_blk_cts = (sbyte)ntfs_bpb[0x044];
|
|
ntfs_bb.dummy4 = ntfs_bpb[0x045];
|
|
ntfs_bb.dummy5 = BitConverter.ToUInt16(ntfs_bpb, 0x046);
|
|
ntfs_bb.serial_no = BitConverter.ToUInt64(ntfs_bpb, 0x048);
|
|
ntfs_bb.signature2 = BitConverter.ToUInt16(ntfs_bpb, 0x1FE);
|
|
|
|
sb.AppendFormat("{0} bytes per sector", ntfs_bb.bps).AppendLine();
|
|
sb.AppendFormat("{0} sectors per cluster ({1} bytes)", ntfs_bb.spc, ntfs_bb.spc * ntfs_bb.bps).AppendLine();
|
|
// sb.AppendFormat("{0} reserved sectors", ntfs_bb.rsectors).AppendLine();
|
|
// sb.AppendFormat("{0} FATs", ntfs_bb.fats_no).AppendLine();
|
|
// sb.AppendFormat("{0} entries in the root folder", ntfs_bb.root_ent).AppendLine();
|
|
// sb.AppendFormat("{0} sectors on volume (small)", ntfs_bb.sml_sectors).AppendLine();
|
|
sb.AppendFormat("Media descriptor: 0x{0:X2}", ntfs_bb.media).AppendLine();
|
|
// sb.AppendFormat("{0} sectors per FAT", ntfs_bb.spfat).AppendLine();
|
|
sb.AppendFormat("{0} sectors per track", ntfs_bb.sptrk).AppendLine();
|
|
sb.AppendFormat("{0} heads", ntfs_bb.heads).AppendLine();
|
|
sb.AppendFormat("{0} hidden sectors before filesystem", ntfs_bb.hsectors).AppendLine();
|
|
// sb.AppendFormat("{0} sectors on volume (big)", ntfs_bb.big_sectors).AppendLine();
|
|
sb.AppendFormat("BIOS drive number: 0x{0:X2}", ntfs_bb.drive_no).AppendLine();
|
|
// sb.AppendFormat("NT flags: 0x{0:X2}", ntfs_bb.nt_flags).AppendLine();
|
|
// sb.AppendFormat("Signature 1: 0x{0:X2}", ntfs_bb.signature1).AppendLine();
|
|
sb.AppendFormat("{0} sectors on volume ({1} bytes)", ntfs_bb.sectors, ntfs_bb.sectors * ntfs_bb.bps).AppendLine();
|
|
sb.AppendFormat("Sectors where $MFT starts: {0}", ntfs_bb.mft_lsn).AppendLine();
|
|
sb.AppendFormat("Sectors where $MFTMirr starts: {0}", ntfs_bb.mftmirror_lsn).AppendLine();
|
|
|
|
if (ntfs_bb.mft_rc_clusters > 0)
|
|
sb.AppendFormat("{0} clusters per MFT record ({1} bytes)", ntfs_bb.mft_rc_clusters,
|
|
ntfs_bb.mft_rc_clusters * ntfs_bb.bps * ntfs_bb.spc).AppendLine();
|
|
else
|
|
sb.AppendFormat("{0} bytes per MFT record", 1 << -ntfs_bb.mft_rc_clusters).AppendLine();
|
|
if (ntfs_bb.index_blk_cts > 0)
|
|
sb.AppendFormat("{0} clusters per Index block ({1} bytes)", ntfs_bb.index_blk_cts,
|
|
ntfs_bb.index_blk_cts * ntfs_bb.bps * ntfs_bb.spc).AppendLine();
|
|
else
|
|
sb.AppendFormat("{0} bytes per Index block", 1 << -ntfs_bb.index_blk_cts).AppendLine();
|
|
|
|
sb.AppendFormat("Volume serial number: {0:X16}", ntfs_bb.serial_no).AppendLine();
|
|
// sb.AppendFormat("Signature 2: 0x{0:X4}", ntfs_bb.signature2).AppendLine();
|
|
|
|
information = sb.ToString();
|
|
}
|
|
|
|
struct NTFS_BootBlock // Sector 0
|
|
{
|
|
// BIOS Parameter Block
|
|
public byte jmp1;
|
|
// 0x000, Jump to boot code
|
|
public UInt16 jmp2;
|
|
// 0x001, ...;
|
|
public string OEMName;
|
|
// 0x003, OEM Name, 8 bytes, space-padded, must be "NTFS "
|
|
public UInt16 bps;
|
|
// 0x00B, Bytes per sector
|
|
public byte spc;
|
|
// 0x00D, Sectors per cluster
|
|
public UInt16 rsectors;
|
|
// 0x00E, Reserved sectors, seems 0
|
|
public byte fats_no;
|
|
// 0x010, Number of FATs... obviously, 0
|
|
public UInt16 root_ent;
|
|
// 0x011, Number of entries on root directory... 0
|
|
public UInt16 sml_sectors;
|
|
// 0x013, Sectors in volume... 0
|
|
public byte media;
|
|
// 0x015, Media descriptor
|
|
public UInt16 spfat;
|
|
// 0x016, Sectors per FAT... 0
|
|
public UInt16 sptrk;
|
|
// 0x018, Sectors per track, required to boot
|
|
public UInt16 heads;
|
|
// 0x01A, Heads... required to boot
|
|
public UInt32 hsectors;
|
|
// 0x01C, Hidden sectors before BPB
|
|
public UInt32 big_sectors;
|
|
// 0x020, Sectors in volume if > 65535... 0
|
|
public byte drive_no;
|
|
// 0x024, Drive number
|
|
public byte nt_flags;
|
|
// 0x025, 0
|
|
public byte signature1;
|
|
// 0x026, EPB signature, 0x80
|
|
public byte dummy;
|
|
// 0x027, Alignment
|
|
// End of BIOS Parameter Block
|
|
// NTFS real superblock
|
|
public Int64 sectors;
|
|
// 0x028, Sectors on volume
|
|
public Int64 mft_lsn;
|
|
// 0x030, LSN of $MFT
|
|
public Int64 mftmirror_lsn;
|
|
// 0x038, LSN of $MFTMirror
|
|
public sbyte mft_rc_clusters;
|
|
// 0x040, Clusters per MFT record
|
|
public byte dummy2;
|
|
// 0x041, Alignment
|
|
public UInt16 dummy3;
|
|
// 0x042, Alignment
|
|
public sbyte index_blk_cts;
|
|
// 0x044, Clusters per index block
|
|
public byte dummy4;
|
|
// 0x045, Alignment
|
|
public UInt16 dummy5;
|
|
// 0x046, Alignment
|
|
public UInt64 serial_no;
|
|
// 0x048, Volume serial number
|
|
// End of NTFS superblock, followed by 430 bytes of boot code
|
|
public UInt16 signature2;
|
|
// 0x1FE, 0xAA55
|
|
}
|
|
}
|
|
}
|