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/*
** fs_types
** The Sleuth Kit
**
** Identify the type of file system being used
**
** Brian Carrier [carrier <at> sleuthkit [dot] org]
** Copyright (c) 2006-2011 Brian Carrier, Basis Technology. All Rights reserved
** Copyright (c) 2003-2005 Brian Carrier. All rights reserved
**
** TASK
** Copyright (c) 2002 Brian Carrier, @stake Inc. All rights reserved
**
** This software is distributed under the Common Public License 1.0
**
*/
/**
* \file fs_types.c
* Contains TSK functions that deal with parsing and printing file system type strings.
*/
#include "tsk_fs_i.h"
/**
* \internal
*/
typedef struct {
char *name;
TSK_FS_TYPE_ENUM code;
char *comment;
} FS_TYPES;
/** \internal
* The table used to parse input strings - supports
* legacy strings - in order of expected usage
*
* All unique TSK_FS_TYPE_ENUM values should be in here with a unique
* name so that we can map between values and names.
*/
static FS_TYPES fs_type_table[] = {
{"ntfs", TSK_FS_TYPE_NTFS, "NTFS"}, // NTFS == NTFS_DETECT
{"fat", TSK_FS_TYPE_FAT_DETECT, "FAT (Auto Detection)"},
{"ext", TSK_FS_TYPE_EXT_DETECT, "ExtX (Auto Detection)"},
{"iso9660", TSK_FS_TYPE_ISO9660, "ISO9660 CD"}, // ISO9660 == DETECT
#if TSK_USE_HFS
{"hfs", TSK_FS_TYPE_HFS_DETECT, "HFS+ (Auto Detection)"},
#endif
{"yaffs2", TSK_FS_TYPE_YAFFS2, "YAFFS2"},
{"apfs", TSK_FS_TYPE_APFS, "APFS"},
{"logical", TSK_FS_TYPE_LOGICAL, "Logical Directory"},
{"ufs", TSK_FS_TYPE_FFS_DETECT, "UFS (Auto Detection)"},
{"raw", TSK_FS_TYPE_RAW, "Raw Data"}, // RAW == RAW_DETECT
{"swap", TSK_FS_TYPE_SWAP, "Swap Space"}, // SWAP == SWAP_DETECT
{"fat12", TSK_FS_TYPE_FAT12, "FAT12"},
{"fat16", TSK_FS_TYPE_FAT16, "FAT16"},
{"fat32", TSK_FS_TYPE_FAT32, "FAT32"},
{"exfat", TSK_FS_TYPE_EXFAT, "exFAT"},
{"ext2", TSK_FS_TYPE_EXT2, "Ext2"},
{"ext3", TSK_FS_TYPE_EXT3, "Ext3"},
{"ext4", TSK_FS_TYPE_EXT4, "Ext4"},
{"ufs1", TSK_FS_TYPE_FFS1, "UFS1"},
{"ufs2", TSK_FS_TYPE_FFS2, "UFS2"},
#if TSK_USE_HFS
{"hfsp", TSK_FS_TYPE_HFS, "HFS+"},
{"hfsl", TSK_FS_TYPE_HFS_LEGACY, "HFS (Legacy)"},
#endif
{0,0,""},
};
static FS_TYPES fs_legacy_type_table[] = {
// legacy CLI arg names
{"linux-ext", TSK_FS_TYPE_EXT_DETECT, "auto-detect Linux EXTxFS"},
{"linux-ext2", TSK_FS_TYPE_EXT2, "Linux TSK_FS_TYPE_EXT_2"},
{"linux-ext3", TSK_FS_TYPE_EXT3, "Linux TSK_FS_TYPE_EXT_3"},
{"linux-ext4", TSK_FS_TYPE_EXT4, "Linux TSK_FS_TYPE_EXT_4"},
{"bsdi", TSK_FS_TYPE_FFS1, "BSDi FFS"},
{"freebsd", TSK_FS_TYPE_FFS1, "FreeBSD FFS"},
{"netbsd", TSK_FS_TYPE_FFS1, "NetBSD FFS"},
{"openbsd", TSK_FS_TYPE_FFS1, "OpenBSD FFS"},
{"solaris", TSK_FS_TYPE_FFS1B, "Solaris FFS"},
{0,0,""}
};
/**
* \ingroup fslib
* Parse a string with the file system type and return its internal ID.
*
* @param str String to parse, always UTF-8.
* @returns ID of string (or unsupported if the name is unknown)
*/
TSK_FS_TYPE_ENUM
tsk_fs_type_toid_utf8(const char *str)
{
FS_TYPES *sp;
for (sp = fs_type_table; sp->name; sp++) {
if (strcmp(str, sp->name) == 0) {
return sp->code;
}
}
// look at the legacy names
for (sp = fs_legacy_type_table; sp->name; sp++) {
if (strcmp(str, sp->name) == 0) {
return sp->code;
}
}
return TSK_FS_TYPE_UNSUPP;
}
/**
* \ingroup fslib
* Parse a string with the file system type and return its internal ID.
*
* @param str String to parse.
* @returns ID of string (or unsupported if the name is unknown)
*/
TSK_FS_TYPE_ENUM
tsk_fs_type_toid(const TSK_TCHAR * str)
{
char tmp[16];
int i;
// convert to char
for (i = 0; i < 15 && str[i] != '\0'; i++) {
tmp[i] = (char) str[i];
}
tmp[i] = '\0';
return tsk_fs_type_toid_utf8(tmp);
}
/**
* \ingroup fslib
* Print the supported file system types to a file handle
* @param hFile File handle to print to
*/
void
tsk_fs_type_print(FILE * hFile)
{
FS_TYPES *sp;
tsk_fprintf(hFile, "Supported file system types:\n");
for (sp = fs_type_table; sp->name; sp++)
tsk_fprintf(hFile, "\t%s (%s)\n", sp->name, sp->comment);
}
/**
* \ingroup fslib
* Return the string name of a file system type id.
* @param ftype File system type id
* @returns Name or NULL on error
*/
const char *
tsk_fs_type_toname(TSK_FS_TYPE_ENUM ftype)
{
FS_TYPES *sp;
for (sp = fs_type_table; sp->name; sp++)
if (sp->code == ftype)
return sp->name;
return NULL;
}
/**
* \ingroup fslib
* Return the supported file system types.
* @returns The bit in the return value is 1 if the type is supported.
*/
TSK_FS_TYPE_ENUM
tsk_fs_type_supported()
{
TSK_FS_TYPE_ENUM sup_types = 0;
FS_TYPES *types;
for (types = fs_type_table; types->name; types++) {
sup_types |= types->code;
}
return sup_types;
}
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