using System; using System.IO; using System.Text; using FileSystemIDandChk; // Information from Inside Macintosh namespace FileSystemIDandChk.Plugins { class NTFS : Plugin { public NTFS(PluginBase Core) { base.Name = "New Technology File System (NTFS)"; base.PluginUUID = new Guid("33513B2C-1e6d-4d21-a660-0bbc789c3871"); } public override bool Identify(FileStream stream, long offset) { byte[] eigth_bytes = new byte[8]; byte signature1, fats_no; UInt16 spfat, signature2; string oem_name; BinaryReader br = new BinaryReader(stream); br.BaseStream.Seek(3 + offset, SeekOrigin.Begin); eigth_bytes = br.ReadBytes(8); oem_name = StringHandlers.CToString(eigth_bytes); if(oem_name != "NTFS ") return false; br.BaseStream.Seek(0x10 + offset, SeekOrigin.Begin); fats_no = br.ReadByte(); if(fats_no != 0) return false; br.BaseStream.Seek(0x16 + offset, SeekOrigin.Begin); spfat = br.ReadUInt16(); if(spfat != 0) return false; br.BaseStream.Seek(0x26 + offset, SeekOrigin.Begin); signature1 = br.ReadByte(); if(signature1 != 0x80) return false; br.BaseStream.Seek(0x1FE + offset, SeekOrigin.Begin); signature2 = br.ReadUInt16(); if(signature2 != 0xAA55) return false; return true; } public override void GetInformation (FileStream stream, long offset, out string information) { information = ""; StringBuilder sb = new StringBuilder(); BinaryReader br = new BinaryReader(stream); br.BaseStream.Seek(offset, SeekOrigin.Begin); NTFS_BootBlock ntfs_bb = new NTFS_BootBlock(); byte[] oem_name = new byte[8]; ntfs_bb.jmp1 = br.ReadByte(); ntfs_bb.jmp2 = br.ReadUInt16(); oem_name = br.ReadBytes(8); ntfs_bb.OEMName = StringHandlers.CToString(oem_name); ntfs_bb.bps = br.ReadUInt16(); ntfs_bb.spc = br.ReadByte(); ntfs_bb.rsectors = br.ReadUInt16(); ntfs_bb.fats_no = br.ReadByte(); ntfs_bb.root_ent = br.ReadUInt16(); ntfs_bb.sml_sectors = br.ReadUInt16(); ntfs_bb.media = br.ReadByte(); ntfs_bb.spfat = br.ReadUInt16(); ntfs_bb.sptrk = br.ReadUInt16(); ntfs_bb.heads = br.ReadUInt16(); ntfs_bb.hsectors = br.ReadUInt32(); ntfs_bb.big_sectors = br.ReadUInt32(); ntfs_bb.drive_no = br.ReadByte(); ntfs_bb.nt_flags = br.ReadByte(); ntfs_bb.signature1 = br.ReadByte(); ntfs_bb.dummy = br.ReadByte(); ntfs_bb.sectors = br.ReadInt64(); ntfs_bb.mft_lsn = br.ReadInt64(); ntfs_bb.mftmirror_lsn = br.ReadInt64(); ntfs_bb.mft_rc_clusters = br.ReadSByte(); ntfs_bb.dummy2 = br.ReadByte(); ntfs_bb.dummy3 = br.ReadUInt16(); ntfs_bb.index_blk_cts = br.ReadSByte(); ntfs_bb.dummy4 = br.ReadByte(); ntfs_bb.dummy5 = br.ReadUInt16(); ntfs_bb.serial_no = br.ReadUInt64(); br.BaseStream.Seek(430, SeekOrigin.Current); ntfs_bb.signature2 = br.ReadUInt16(); 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(); } private struct NTFS_BootBlock // Sector 0 { // BIOS Parameter Block public byte jmp1; // Jump to boot code public UInt16 jmp2; // ...; public string OEMName; // OEM Name, 8 bytes, space-padded, must be "NTFS " public UInt16 bps; // Bytes per sector public byte spc; // Sectors per cluster public UInt16 rsectors; // Reserved sectors, seems 0 public byte fats_no; // Number of FATs... obviously, 0 public UInt16 root_ent; // Number of entries on root directory... 0 public UInt16 sml_sectors; // Sectors in volume... 0 public byte media; // Media descriptor public UInt16 spfat; // Sectors per FAT... 0 public UInt16 sptrk; // Sectors per track, required to boot public UInt16 heads; // Heads... required to boot public UInt32 hsectors; // Hidden sectors before BPB public UInt32 big_sectors; // Sectors in volume if > 65535... 0 public byte drive_no; // Drive number public byte nt_flags; // 0 public byte signature1; // EPB signature, 0x80 public byte dummy; // Alignment // End of BIOS Parameter Block // NTFS real superblock public Int64 sectors; // Sectors on volume public Int64 mft_lsn; // LSN of $MFT public Int64 mftmirror_lsn; // LSN of $MFTMirror public sbyte mft_rc_clusters; // Clusters per MFT record public byte dummy2; // Alignment public UInt16 dummy3; // Alignment public sbyte index_blk_cts; // Clusters per index block public byte dummy4; // Alignment public UInt16 dummy5; // Alignment public UInt64 serial_no; // Volume serial number // End of NTFS superblock, followed by 426 bytes of boot code public UInt16 signature2; // 0xAA55 } } }