codice:
using System;
/*
* http://www.datarescue.com/laboratory/partition.htm
*
* +OOh Partition State 1 byte
* 00h = non active
* 80h = Boot Partition
* +01h Begin of partition : Head 1 byte
* +02h Begin of partition : Cylinder - Sector 1 word (0->5 sector | 6 -> 15 cylinder)
* +04h Type of partition (see list) 1 byte
* +05h End of partition : Head 1 byte
* +06h End of partition : Cylinder - Sector 1 word (0->5 sector | 6 -> 15 cylinder)
* +08h Number of sectors between the MBR and the 1st sector of the partition 4 bytes
* +0Ch Number of sectors in the partition 4 bytes
*/
/**
*
* Codici dei tipi delle partizioni
*
* 0 Vuoto 1e Hidden W95 FAT1 80 Vecchio Minix be Solaris boot
* 1 FAT12 24 NEC DOS 81 Minix / vecchio bf Solaris
* 2 XENIX root 39 Plan 9 82 Linux swap / So c1 DRDOS/sec (FAT-
* 3 XENIX usr 3c Recupero Partit 83 Linux c4 DRDOS/sec (FAT-
* 4 FAT16 <32M 40 Venix 80286 84 C nascosto OS/2 c6 DRDOS/sec (FAT-
* 5 Esteso 41 PPC PReP Boot 85 Linux esteso c7 Syrinx
* 6 FAT16 42 SFS 86 set volume NTFS da Non-FS data
* 7 HPFS/NTFS 4d QNX4.x 87 set volume NTFS db CP/M / CTOS / .
* 8 AIX 4e QNX4.x 2a parti 88 Linux plaintext de Dell Utility
* 9 AIX avviabile 4f QNX4.x 3rd part 8e Linux LVM df BootIt
* a OS/2 Boot Manag 50 OnTrack DM 93 Amoeba e1 accesso DOS
* b W95 FAT32 51 OnTrack DM6 Aux 94 Amoeba BBT e3 DOS R/O
* c W95 FAT32 (LBA) 52 CP/M 9f BSD/OS e4 SpeedStor
* e W95 FAT16 (LBA) 53 OnTrack DM6 Aux a0 Ibernazione IBM eb BeOS fs
* f W95 Ext'd (LBA) 54 OnTrackDM6 a5 FreeBSD ee EFI GPT
* 10 OPUS 55 EZ-Drive a6 OpenBSD ef EFI (FAT-12/16/
* 11 FAT12 nascosto 56 Golden Bow a7 NeXTSTEP f0 Linux/PA-RISC b
* 12 Diagnostica Com 5c Priam Edisk a8 Darwin UFS f1 SpeedStor
* 14 FAT16 nascosto 61 SpeedStor a9 NetBSD f4 SpeedStor
* 16 FAT16 nascosto 63 GNU HURD o SysV ab Darwin boot f2 DOS secondario
* 17 HPFS/NTFS nasco 64 Novell Netware b7 BSDI fs fd Autorilevamento
* 18 AST SmartSleep 65 Novell Netware b8 BSDI swap fe LANstep
* 1b Hidden W95 FAT3 70 DiskSecure Mult bb Boot Wizard hid ff BBT
* 1c Hidden W95 FAT3 75 PC/IX
*
*/
namespace PHPSoft.DiskAnalyzer
{
public enum PartitionType
{
Empty = 0x00,
FAT12 = 0x01,
XENIX_Root = 0x02,
XENIX_User = 0x03,
FAT16_32MB = 0x04,
Extended = 0x05,
FAT16 = 0x06,
HPFS_NTFS = 0x07,
AIX = 0x08,
AIX_Bootable = 0x09,
OS2_BootManager = 0x0a,
Win95_FAT32 = 0x0b,
Win95_FAT32_LBA = 0x0c,
Win95_FAT16_LBA = 0x0e,
Win95_Extended_LBA = 0x0f,
OPUS = 0x10,
FAT12_Hidden = 0x11,
Diagnostic = 0x12,
FAT16_Hidden_Sectored = 0x14,
FAT16_Hidden = 0x16,
HPFS_NTFS_Hidden = 0x17,
AST_SmartSleep = 0x18,
Win95_FAT32_Hidden = 0x1b,
Win95_FAT32_LBA_Hidden = 0x1c,
Win95_FAT16_LBA_Hidden = 0x1e,
NEC_DOS = 0x24,
NOS = 0x32,
JFS_OS2 = 0x35,
Plan9 = 0x39,
PartitionMagic_Recovery = 0x3c,
NetWare_Hidden = 0x3d,
Venix_80286 = 0x40,
PPC_PReP_Boot = 0x41,
SFS = 0x42,
QNX4 = 0x4d,
QNX4_Second = 0x4e,
QNX4_Third = 0x4f,
OnTrack_DiskManager_RO = 0x50,
OnTrack_DiskManager_RW = 0x51,
CP_M = 0x52,
OnTrack_DiskManager_AUX = 0x53,
OnTrack_DiskManager_DDO = 0x54,
EZDrive = 0x55,
GoldenBow = 0x56,
PriamEdisk = 0x5c,
SpeedStor = 0x61,
Hurd = 0x63,
Novell_Netware_286 = 0x64,
Novell_Netware_386 = 0x65,
DiskSecure_MultiBoot = 0x70,
PC_IX = 0x75,
Minix_Old = 0x80
}
public struct DataZone
{
uint start;
uint end;
public DataZone(uint start, uint end)
{
this.start = start;
this.end = end;
}
public uint Start
{
get
{
return start;
}
}
public uint End
{
get
{
return end;
}
}
}
/// <summary>
/// Descrizione di riepilogo per PartitionEntry.
/// </summary>
public class PartitionEntry
{
int number;
bool active;
DataZone head;
DataZone cylinder;
DataZone sector;
int sectorsBetweenMBRandPartition;
int sectorsInPartition;
PartitionType type;
public PartitionEntry(int PartitionNumber, byte[] MBRBuffer, int StartingPosition)
{
#region Imposta il numero della partizione
this.number = PartitionNumber;
#endregion
#region Verifica se la partizione è attiva o meno
if (MBRBuffer[StartingPosition + 0x00] == 0x80)
{
this.active = true;
}
else
{
this.active = false;
}
#endregion
#region Acquisisce l'inizio e la fine in cilindri/settori della partizione
uint cylSecStart = BitConverter.ToUInt16(MBRBuffer, StartingPosition + 0x02);
uint cylSecEnd = BitConverter.ToUInt16(MBRBuffer, StartingPosition + 0x06);
/*
this.cylinder = new DataZone(
MBRBuffer[StartingPosition + 0x02] | ((MBRBuffer[StartingPosition + 0x03] & 0xC0) ) ,
MBRBuffer[StartingPosition + 0x06],
);
*/
this.sector = new DataZone(
cylSecStart & 0x3F,
cylSecEnd & 0x3F);
#endregion
#region Acquisisce il tipo di partizione
this.type = (PartitionType)MBRBuffer[StartingPosition + 0x04];
#endregion
}
public int Number
{
get
{
return number;
}
}
public bool Active
{
get
{
return active;
}
}
public DataZone Head
{
get
{
return head;
}
}
public DataZone Cylinder
{
get
{
return cylinder;
}
}
public DataZone Sector
{
get
{
return sector;
}
}
public int SectorsBetweenMBRandPartition
{
get
{
return sectorsBetweenMBRandPartition;
}
}
public int SectorsInPartition
{
get
{
return sectorsInPartition;
}
}
public PartitionType Type
{
get
{
return type;
}
}
}
}
Il codice postato è estremamente semplice, se si è letto con attenzione quanto scritto prima, soprattutto il file PartitionEntry contiene proprietà ed enumerazioni perché tutto il lavoro di parsing della struttura viene eseguito nel costruttore
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