dos.c

linux下开发的针对所有磁盘的数据恢复的源码

/*
 * The Sleuth Kit
 *
 * Brian Carrier [carrier <at> sleuthkit [dot] org]
 * Copyright (c) 2006-2008 Brian Carrier, Basis Technology.  All rights reserved
 * Copyright (c) 2003-2005 Brian Carrier.  All rights reserved
 *
 * This software is distributed under the Common Public License 1.0
 */

/** \file dos.c
 * Contains the internal functions to process DOS Partition tables
 */

#include "tsk_vs_i.h"
#include "tsk_dos.h"


/* Check the extended partition flags */
#define dos_is_ext(x)	\
	((((x) == 0x05) || ((x) == 0x0F) || ((x) == 0x85)) ? 1 : 0)

/* 
 * dos_get_desc
 *
 * Return a buffer with a string description of the partition type
 * 
 * From: http://www.win.tue.nl/~aeb/partitions/partition_types-1.html 
 */
static char *
dos_get_desc(uint8_t ptype)
{
#define DESC_LEN 64
    char *str = tsk_malloc(DESC_LEN);
    if (str == NULL)
        return "";

    switch (ptype) {
    case 0x00:
        snprintf(str, DESC_LEN, "Empty (0x00)");
        break;
    case 0x01:
        snprintf(str, DESC_LEN, "DOS FAT12 (0x01)");
        break;
    case 0x04:
    case 0x06:
        snprintf(str, DESC_LEN, "DOS FAT16 (0x%.2X)", ptype);
        break;
    case 0x05:
        snprintf(str, DESC_LEN, "DOS Extended (0x05)");
        break;
    case 0x07:
        snprintf(str, DESC_LEN, "NTFS (0x07)");
        break;
    case 0x08:
        snprintf(str, DESC_LEN, "AIX Boot (0x08)");
        break;
    case 0x09:
        snprintf(str, DESC_LEN, "AIX Data (0x09)");
        break;
    case 0x0b:
    case 0x0c:
        snprintf(str, DESC_LEN, "Win95 FAT32 (0x%.2X)", ptype);
        break;
    case 0x0e:
        snprintf(str, DESC_LEN, "Win95 FAT16 (0x0E)");
        break;
    case 0x0f:
        snprintf(str, DESC_LEN, "Win95 Extended (0x0F)");
        break;
    case 0x11:
        snprintf(str, DESC_LEN, "DOS FAT12 Hidden (0x11)");
        break;
    case 0x12:
        snprintf(str, DESC_LEN, "Hibernation (0x12)");
        break;
    case 0x14:
    case 0x16:
        snprintf(str, DESC_LEN, "DOS FAT16 Hidden (0x%.2X)", ptype);
        break;
    case 0x1b:
    case 0x1c:
        snprintf(str, DESC_LEN, "Win95 FAT32 Hidden (0x%.2X)", ptype);
        break;
    case 0x1e:
        snprintf(str, DESC_LEN, "Win95 FAT16 Hidden (0x1E)");
        break;
    case 0x42:
        snprintf(str, DESC_LEN, "Win LVM / Secure FS (0x42)");
        break;
    case 0x44:
        snprintf(str, DESC_LEN, "GoBack (0x44)");
        break;
    case 0x50:
    case 0x51:
    case 0x53:
    case 0x54:
        snprintf(str, DESC_LEN, "OnTrack Disk Manager (0x%.2X)", ptype);
        break;
    case 0x55:
        snprintf(str, DESC_LEN, "EZ-Drive (0x55)");
        break;
        return "EZ-Drive";
    case 0x57:
        snprintf(str, DESC_LEN, "DrivePro (0x57)");
        break;
    case 0x61:
        snprintf(str, DESC_LEN, "SpeedStor (0x61)");
        break;
    case 0x63:
        snprintf(str, DESC_LEN, "UNIX System V (0x63)");
        break;
    case 0x64:
    case 0x65:
    case 0x66:
    case 0x67:
    case 0x68:
    case 0x69:
        snprintf(str, DESC_LEN, "Novell Netware (0x%.2X)", ptype);
        break;
    case 0x82:
        snprintf(str, DESC_LEN, "Linux Swap / Solaris x86 (0x82)");
        break;
    case 0x83:
        snprintf(str, DESC_LEN, "Linux (0x83)");
        break;
    case 0x84:
        snprintf(str, DESC_LEN, "Hibernation (0x84)");
        break;
    case 0x85:
        snprintf(str, DESC_LEN, "Linux Extended (0x85)");
        break;
    case 0x86:
        snprintf(str, DESC_LEN, "NTFS Volume Set (0x86)");
        break;
    case 0x8e:
        snprintf(str, DESC_LEN, "Linux Logical Volume Manager (0x8e)");
        break;
    case 0x93:
        snprintf(str, DESC_LEN, "Linux Hidden (0x93)");
        break;
    case 0x9f:
        snprintf(str, DESC_LEN, "BSD/OS (0x9F)");
        break;
    case 0xa0:
    case 0xa1:
        snprintf(str, DESC_LEN, "Hibernation (0x%.2X)", ptype);
        break;
    case 0xa5:
        snprintf(str, DESC_LEN, "FreeBSD (0xA5)");
        break;
    case 0xa6:
        snprintf(str, DESC_LEN, "OpenBSD (0xA6)");
        break;
    case 0xa7:
        snprintf(str, DESC_LEN, "NextSTEP (0xA7)");
        break;
    case 0xa8:
        snprintf(str, DESC_LEN, "Mac OS X (0xA8)");
        break;
    case 0xa9:
        snprintf(str, DESC_LEN, "NetBSD (0xA9)");
        break;
    case 0xab:
        snprintf(str, DESC_LEN, "Mac OS X (0xAB)");
        break;
    case 0xb7:
        snprintf(str, DESC_LEN, "BSDI (0xB7)");
        break;
    case 0xb8:
        snprintf(str, DESC_LEN, "BSDI Swap (0xB8)");
        break;
    case 0xbe:
        snprintf(str, DESC_LEN, "Solaris 8 Boot (0xBE)");
        break;
    case 0xc2:
        snprintf(str, DESC_LEN, "Hidden Linux (0xC2)");
        break;
    case 0xc3:
        snprintf(str, DESC_LEN, "Hidden Linux Swap (0xC3)");
        break;
    case 0xc6:
    case 0xc7:
        snprintf(str, DESC_LEN,
            "Corrupted Windows NT Volume / Stripe Set (0x%.2X)", ptype);
        break;
    case 0xee:
        snprintf(str, DESC_LEN, "GPT Safety Partition (0xEE)");
        break;
    case 0xfb:
        snprintf(str, DESC_LEN, "VMWare File System (0xFB)");
        break;
    case 0xfc:
        snprintf(str, DESC_LEN, "VMWare Swap (0xFC)");
        break;
        return "VMware Swap";
    case 0xfd:
        snprintf(str, DESC_LEN, "Linux RAID (0xFD)");
        break;
    case 0x02:
        snprintf(str, DESC_LEN, "XENIX root (0x02)");
        break;
    case 0x03:
        snprintf(str, DESC_LEN, "XENIX /usr (0x03)");
        break;
    case 0x0a:
        snprintf(str, DESC_LEN, "OS/2 Boot Manager (0x0a)");
        break;
        /*
           case 0x0a:
           snprintf(str, DESC_LEN, "Coherent swap (0x0a)");
           break;
           case 0x0a:
           snprintf(str, DESC_LEN, "OPUS (0x0a)");
           break;
         */
    case 0x10:
        snprintf(str, DESC_LEN, "OPUS (0x10)");
        break;
    case 0x17:
        snprintf(str, DESC_LEN, "Hidden IFS/HPFS (0x17)");
        break;
    case 0x18:
        snprintf(str, DESC_LEN, "AST SmartSleep (0x18)");
        break;
    case 0x19:
    case 0x20:
    case 0x22:
    case 0x7e:
    case 0x7f:
    case 0xed:
    case 0xf7:
        snprintf(str, DESC_LEN, "Unused (0x%.2X)", ptype);
        break;
    case 0x21:
    case 0x23:
    case 0x26:
    case 0x31:
    case 0x33:
    case 0x34:
    case 0x36:
    case 0x71:
    case 0x73:
    case 0x76:
    case 0xf3:
        snprintf(str, DESC_LEN, "Reserved (0x%.2X)", ptype);
        break;
    case 0x24:
        snprintf(str, DESC_LEN, "NEC DOS 3.x (0x24)");
        break;
    case 0x32:
        snprintf(str, DESC_LEN, "NOS (0x32)");
        break;
    case 0x35:
        snprintf(str, DESC_LEN, "JFS on OS/2 or eCS  (0x35)");
        break;
    case 0x38:
        snprintf(str, DESC_LEN, "THEOS v3.2 2gb (0x38)");
        break;
        /*      
           case 0x39:
           snprintf(str, DESC_LEN, "Plan 9 (0x39)");
           break;
         */
    case 0x39:
        snprintf(str, DESC_LEN, "THEOS v4 Spanned (0x39)");
        break;
    case 0x3a:
        snprintf(str, DESC_LEN, "THEOS v4 4gb (0x3a)");
        break;
    case 0x3b:
        snprintf(str, DESC_LEN, "THEOS v4 Extended (0x3b)");
        break;
    case 0x3c:
        snprintf(str, DESC_LEN, "PartitionMagic Recovery (0x3c)");
        break;
    case 0x3d:
        snprintf(str, DESC_LEN, "Hidden NetWare (0x3d)");
        break;
    case 0x40:
        snprintf(str, DESC_LEN, "Venix 80286 (0x40)");
        break;
    case 0x41:
        snprintf(str, DESC_LEN,
            "Linux/MINIX (Sharing Disk with DR-DOS) (0x41)");
        break;
        /*      
           case 0x41:
           snprintf(str, DESC_LEN, "Personal RISC Boot (0x41)");
           break;
           case 0x41:
           snprintf(str, DESC_LEN, "PPC PReP Boot (0x41)");
           break;
         */
    case 0x43:
        snprintf(str, DESC_LEN,
            "Linux Native (Sharing Disk with DR-DOS) (0x43)");
        break;
    case 0x45:
        snprintf(str, DESC_LEN, "Boot-US Boot Manager (0x45)");
        break;
        /*
           case 0x45:
           snprintf(str, DESC_LEN, "Priam (0x45)");
           break;
           case 0x45:
           snprintf(str, DESC_LEN, "EUMEL/Elan  (0x45)");
           break;
         */
    case 0x46:
        snprintf(str, DESC_LEN, "EUMEL/Elan  (0x46)");
        break;
    case 0x47:
        snprintf(str, DESC_LEN, "EUMEL/Elan  (0x47)");
        break;
    case 0x48:
        snprintf(str, DESC_LEN, "EUMEL/Elan  (0x48)");
        break;
    case 0x4a:
        snprintf(str, DESC_LEN,
            "Mark Aitchison's ALFS/THIN Lightweight Filesystem (0x4a)");
        break;
        /*case 0x4a:
           snprintf(str, DESC_LEN, "AdaOS Aquila (0x4a)");
           break; */
    case 0x4c:
        snprintf(str, DESC_LEN, "Oberon (0x4c)");
        break;
    case 0x4d:
    case 0x4e:
    case 0x4f:
        snprintf(str, DESC_LEN, "QNX 4.x (0x%.2X)", ptype);
        break;
        /*case 0x4f:
           snprintf(str, DESC_LEN, "Oberon (0x4f)");
           break; */
        /*case 0x52:
           snprintf(str, DESC_LEN, "CP/M (0x52)");
           break; */
    case 0x52:
        snprintf(str, DESC_LEN, "Microport SysV/AT (0x52)");
        break;
        /*case 0x56:
           snprintf(str, DESC_LEN, "Golden Bow VFeature Partitioned Volume. (0x56)");
           break; */
        /*case 0x56:
           snprintf(str, DESC_LEN, "DM Converted to EZ-BIOS (0x56)");
           break; */
    case 0x56: