/usr/include/tsk3/fs/tsk_ntfs.h is in libtsk-dev 3.2.3-2.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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** The Sleuth Kit
**
** Brian Carrier [carrier <at> sleuthkit [dot] org]
** Copyright (c) 2003-2009 Brian Carrier. All rights reserved
**
** TASK
** Copyright (c) 2002 @stake Inc. All rights reserved
**
** This software is distributed under the Common Public License 1.0
*/
/*
* Contains the structures and function APIs for NTFS file system support.
*/
#ifndef _TSK_NTFS_H
#define _TSK_NTFS_H
#ifdef __cplusplus
extern "C" {
#endif
// the SID code has been buggy on some systems and byitself it does
// not provide much security info. It is being disabled until fixed.
#define TSK_USE_SID 1
//#define NTFS_FS_MAGIC 0x5346544E /* "NTFS" in little endian */
#define NTFS_FS_MAGIC 0xAA55
#define NTFS_MAXNAMLEN 256
#define NTFS_MAXNAMLEN_UTF8 4 * NTFS_MAXNAMLEN
/* location of the Root Directory inode */
#define NTFS_ROOTINO NTFS_MFT_ROOT
#define NTFS_FIRSTINO 0 /* location of the $Mft Record */
#define NTFS_LAST_DEFAULT_INO 16 /* A guess for right now */
#define NTFS_FILE_CONTENT_LEN 0
/* uncompression values */
#define NTFS_TOKEN_MASK 1
#define NTFS_SYMBOL_TOKEN 0
#define NTFS_TOKEN_LENGTH 8
/* (64 * 1024) = 65536 */
#define NTFS_MAX_UNCOMPRESSION_BUFFER_SIZE 65536
/************************************************************************
* Update sequence structure. This is located at upd_off from the
* begining of the original structure
*/
typedef struct {
uint8_t upd_val[2]; // what they should be
uint8_t upd_seq; // array of size 2*(upd_cnt-1) w/orig vals
} ntfs_upd;
/************************************************************************
* bootsector
*
* located in sector 0 in $Boot
*/
typedef struct {
uint8_t f1[3]; // 0
char oemname[8]; // 3
uint8_t ssize[2]; // 11 /* sector size in bytes */
uint8_t csize; // 13 /* sectors per cluster */
uint8_t f2[26]; // 14
uint8_t vol_size_s[8]; // 40 /*size of volume in sectors */
uint8_t mft_clust[8]; // 48 /* location of MFT */
uint8_t mftm_clust[8]; // 56 /* location of MFT mirror */
int8_t mft_rsize_c; // 64 /* number of clusters per mft record */
uint8_t f3[3];
int8_t idx_rsize_c; // 68 /* number of clus per idx rec */
uint8_t f4[3];
uint8_t serial[8]; // 72 /* serial number */
uint8_t f5[430]; //80
uint8_t magic[2];
} ntfs_sb;
/************************************************************************
* MFT Entry
*
* One entry in the MFT - there exists one for each file
*/
typedef struct {
uint8_t magic[4];
uint8_t upd_off[2]; // 4
uint8_t upd_cnt[2]; // 6 size+1
uint8_t lsn[8]; // 8 $LogFile Sequence Number
uint8_t seq[2]; // 16
uint8_t link[2]; // 18
uint8_t attr_off[2]; // 20
uint8_t flags[2]; // 22
uint8_t size[4]; // 24
uint8_t alloc_size[4]; //28
uint8_t base_ref[6]; // 32
uint8_t base_seq[2]; // 38
uint8_t next_attrid[2]; // 40 The next id to be assigned
uint8_t f1[2]; // XP Only
uint8_t entry[4]; // XP Only - Number of this entry
} ntfs_mft;
/* Magic values for each MFT entry */
#define NTFS_MFT_MAGIC 0x454c4946
#define NTFS_MFT_MAGIC_BAAD 0x44414142
#define NTFS_MFT_MAGIC_ZERO 0x00000000
/* MFT entry flags */
#define NTFS_MFT_INUSE 0x0001
#define NTFS_MFT_DIR 0x0002
/* flags for file_ref */
#define NTFS_MFT_BASE 0 /* set when the base file record */
/* Mask when not zero, which indicates the base file record */
#define NTFS_MFT_FILE_REC 0x00ffffffffffffff
/* DEFINED MFT entries - file system metadata files */
#define NTFS_MFT_MFT 0x0
#define NTFS_MFT_MFTMIR 0x1
#define NTFS_MFT_LOG 0x2
#define NTFS_MFT_VOL 0x3
#define NTFS_MFT_ATTR 0x4
#define NTFS_MFT_ROOT 0x5
#define NTFS_MFT_BMAP 0x6
#define NTFS_MFT_BOOT 0x7
#define NTFS_MFT_BAD 0x8
//#define NTFS_MFT_QUOT 0x9
#define NTFS_MFT_SECURE 0x9
#define NTFS_MFT_UPCASE 0xA
/************************************************************************
* Attribute Header for resident and non-resident attributes
*/
typedef struct {
uint8_t type[4];
uint8_t len[4]; // 4 - length including header
uint8_t res; // 8 - resident flag
uint8_t nlen; // 9 - name length
uint8_t name_off[2]; // 10 - offset to name
uint8_t flags[2]; // 12
uint8_t id[2]; // 14 - unique identifier
union {
/* Resident Values */
struct {
uint8_t ssize[4]; // 16 - size of content
uint8_t soff[2]; // 20 - offset to content (after name)
uint8_t idxflag[2]; // 22 - indexed flag
} r;
/* Non-resident Values */
struct {
uint8_t start_vcn[8]; // 16 - starting VCN of this attribute
uint8_t last_vcn[8]; // 24
uint8_t run_off[2]; // 32 - offset to the data runs (after name)
uint8_t compusize[2]; // 34 - compression unit size (2^x)
uint8_t f1[4]; // 36
uint8_t alen[8]; // 40 allocated size of stream
uint8_t ssize[8]; // 48 actual size of stream
uint8_t initsize[8]; // 56 initialized steam size
} nr;
} c;
} ntfs_attr;
/* values for the res field */
#define NTFS_MFT_RES 0 /* resident */
#define NTFS_MFT_NONRES 1 /* non-resident */
/* Values for flag field
* should only exist for $DATA attributes */
#define NTFS_ATTR_FLAG_COMP 0x0001 /* compressed */
#define NTFS_ATTR_FLAG_ENC 0x4000 /* encrypted */
#define NTFS_ATTR_FLAG_SPAR 0x8000 /* sparse */
/* values for the type field */
/* NOTE that the default TSK attribute types are based on these.
* Any changes to these should be merged with the defines in tsk_fs.h */
#define NTFS_ATYPE_SI 0x10 // 16
#define NTFS_ATYPE_ATTRLIST 0x20 // 32
#define NTFS_ATYPE_FNAME 0x30 // 48
#define NTFS_ATYPE_VVER 0x40 // 64 (NT)
#define NTFS_ATYPE_OBJID 0x40 // 64 (2K)
#define NTFS_ATYPE_SEC 0x50 // 80
#define NTFS_ATYPE_VNAME 0x60 // 96
#define NTFS_ATYPE_VINFO 0x70 // 112
#define NTFS_ATYPE_DATA 0x80 // 128
#define NTFS_ATYPE_IDXROOT 0x90 // 144
#define NTFS_ATYPE_IDXALLOC 0xA0 // 160
#define NTFS_ATYPE_BITMAP 0xB0 // 176
#define NTFS_ATYPE_SYMLNK 0xC0 // 192 (NT)
#define NTFS_ATYPE_REPARSE 0xC0 // 192 (2K)
#define NTFS_ATYPE_EAINFO 0xD0 // 208
#define NTFS_ATYPE_EA 0xE0 // 224
#define NTFS_ATYPE_PROP 0xF0 // (NT)
#define NTFS_ATYPE_LOG 0x100 // (2K)
/************************************************************************
* File Name Attribute
*/
typedef struct {
uint8_t par_ref[6]; /* file reference to base File Record of parent */
uint8_t par_seq[2]; /* seq num to base File Record of parent */
uint8_t crtime[8]; /* file creation */
uint8_t mtime[8]; /* file altered */
uint8_t ctime[8]; /* mod time for FILE record (MFT Entry) */
uint8_t atime[8]; /* access time */
uint8_t alloc_fsize[8];
uint8_t real_fsize[8];
uint8_t flags[8];
uint8_t nlen; /* length of file name */
uint8_t nspace;
uint8_t name; /* in unicode */
} ntfs_attr_fname;
/* values for the flags field of attr_fname */
#define NTFS_FNAME_FLAGS_RO 0x0000000000000001
#define NTFS_FNAME_FLAGS_HID 0x0000000000000002
#define NTFS_FNAME_FLAGS_SYS 0x0000000000000004
#define NTFS_FNAME_FLAGS_ARCH 0x0000000000000020
#define NTFS_FNAME_FLAGS_DEV 0x0000000000000040
#define NTFS_FNAME_FLAGS_NORM 0x0000000000000080
#define NTFS_FNAME_FLAGS_TEMP 0x0000000000000100
#define NTFS_FNAME_FLAGS_SPAR 0x0000000000000200
#define NTFS_FNAME_FLAGS_REP 0x0000000000000400
#define NTFS_FNAME_FLAGS_COMP 0x0000000000000800
#define NTFS_FNAME_FLAGS_OFF 0x0000000000001000
#define NTFS_FNAME_FLAGS_NOIDX 0x0000000000002000
#define NTFS_FNAME_FLAGS_ENC 0x0000000000004000
#define NTFS_FNAME_FLAGS_DIR 0x0000000010000000
#define NTFS_FNAME_FLAGS_IDXVIEW 0x0000000020000000
/* values for the name space values of nspace */
#define NTFS_FNAME_POSIX 0 /* case sensitive and any but NULL and \ */
#define NTFS_FNAME_WIN32 1 // insensitive and restricted
#define NTFS_FNAME_DOS 2 // 8.3 format of 8-bit chars in uppercase
#define NTFS_FNAME_WINDOS 3 // name in WIN32 space that is already DOS
/************************************************************************
* Standard Information Attribute
*/
typedef struct {
uint8_t crtime[8]; /* creation date */
uint8_t mtime[8]; /* file altered */
uint8_t ctime[8]; /* MFT Changed */
uint8_t atime[8]; /* last access (read) */
uint8_t dos[4]; /* permissions in DOS Format */
uint8_t maxver[4];
uint8_t ver[4];
uint8_t class_id[4];
uint8_t own_id[4];
uint8_t sec_id[4];
uint8_t quota[8];
uint8_t usn[8];
} ntfs_attr_si;
/* DOS Flags values */
#define NTFS_SI_RO 0x0001
#define NTFS_SI_HID 0x0002
#define NTFS_SI_SYS 0x0004
#define NTFS_SI_ARCH 0x0020
#define NTFS_SI_DEV 0x0040
#define NTFS_SI_NORM 0x0080
#define NTFS_SI_TEMP 0x0100
#define NTFS_SI_SPAR 0x0200
#define NTFS_SI_REP 0x0400
#define NTFS_SI_COMP 0x0800
#define NTFS_SI_OFF 0x1000
#define NTFS_SI_NOIDX 0x2000
#define NTFS_SI_ENC 0x4000
/************************************************************************
* Volume Info Attribute
*/
typedef struct {
uint8_t f1[8];
uint8_t maj_ver;
uint8_t min_ver;
uint8_t flags[2];
uint8_t f2[4];
} ntfs_attr_vinfo;
#define NTFS_VINFO_DIRTY 0x0001 // Dirty
#define NTFS_VINFO_RESLOG 0x0002 // Resize LogFile
#define NTFS_VINFO_UPGRAD 0x0004 // Upgrade on Mount
#define NTFS_VINFO_MNTNT4 0x0008 // Mounted on NT4
#define NTFS_VINFO_DELUSN 0x0010 // Delete USN Underway
#define NTFS_VINFO_REPOBJ 0x0020 // Repair Object Ids
#define NTFS_VINFO_MODCHK 0x8000 // Modified by chkdsk
/* versions
* NT = Maj=1 Min=2
* 2k = Maj=3 Min=0
* xp = Maj=3 Min=1
*/
#define NTFS_VINFO_NT 0x21
#define NTFS_VINFO_2K 0x03
#define NTFS_VINFO_XP 0x13
/************************************************************************
* attribute list
*/
typedef struct {
uint8_t type[4]; // Attribute Type
uint8_t len[2]; // length of entry
uint8_t nlen; // number of chars in name
uint8_t f1; // 7
uint8_t start_vcn[8]; // starting VCN or NTFS_ATTRL_RES
uint8_t file_ref[6]; // file reference to new MFT entry
uint8_t seq[2]; // 22
uint8_t id[2]; // id (also in the attribute header)
uint8_t name; // 26 name in unicode
} ntfs_attrlist;
#define NTFS_ATTRL_RES 0
/************************************************************************
* runlist
*
* Used to store the non-resident runs for an attribute.
* It is located in the MFT and pointed to by the run_off in the header
*/
typedef struct {
/* lsb 4 bits: num of bytes in run length field
* msb 4 bits: num of bytes in run offset field - (LCN)
*/
uint8_t len;
uint8_t buf[32];
} ntfs_runlist;
#define NTFS_RUNL_LENSZ(runl) \
(uint8_t)(runl->len & 0x0f)
#define NTFS_RUNL_OFFSZ(runl) \
(uint8_t)((runl->len & 0xf0) >> 4)
/************************************************************************
* Index root for directories
*
* the attribute has two parts. The header is general to all index entries
* and applies to $IDX_ALLOC as well. The buffer part contains the
* index entries that are allocated to $IDX_ROOT.
*
*/
/*
* Starting at begin_off is a stream of ntfs_idxentry structures
*/
typedef struct {
uint8_t begin_off[4]; /* offset to start of seq of idx entries */
uint8_t seqend_off[4]; /* offset to end of seq of idx entries */
uint8_t bufend_off[4]; /* offset to end of idx buffer */
uint8_t flags[4];
} ntfs_idxelist;
/* value for flags */
#define NTFS_IDXELIST_CHILD 0x1 /* children exist below this node */
/* This is general index information and applies to $IDX_ALLOC as well */
typedef struct {
uint8_t type[4]; /* ATYPE that tree is sorted by */
uint8_t collation_rule[4];
uint8_t idxalloc_size_b[4]; /* index alloc size in bytes */
uint8_t idx_size_c; /* index alloc size in clusters */
uint8_t pad[3];
ntfs_idxelist list;
} ntfs_idxroot;
/************************************************************************
* idxrec
*
* this is structure for the nodes of the B+ index trees
* It contains a list of index entry data structures. Each
* buffer corresponds to one node. The $IDX_ALLOC attribute
* is an array of these data structures
*/
typedef struct {
uint8_t magic[4]; /* INDX */
uint8_t upd_off[2];
uint8_t upd_cnt[2]; /* size + 1 */
uint8_t lsn[8]; /* $LogFile Sequence Number */
uint8_t idx_vcn[8]; /* vcn in idx alloc attr */
ntfs_idxelist list;
} ntfs_idxrec;
#define NTFS_IDXREC_MAGIC 0x58444e49 /* INDX */
/************************************************************************
* This structure exists for each file and directory in the tree */
typedef struct {
uint8_t file_ref[6]; /* file reference (invalid for last entry) */
uint8_t seq_num[2]; /* file reference (invalid for last entry) */
uint8_t idxlen[2]; /* length of the index entry */
uint8_t strlen[2]; /* length of stream */
uint8_t flags;
uint8_t f1[3];
uint8_t stream; /* length of strlen - invalid for last entry */
/* loc of subnode is found in last 8-bytes
* of idx entry (idxlen - 8). use macro
*/
} ntfs_idxentry;
#define NTFS_IDX_SUB 0x01 /* Entry points to a sub-node */
#define NTFS_IDX_LAST 0x02 /* last indx entry in the node */
/* return the address of the subnode entry, it is located in the last
* 8 bytes of the structure
*/
#define GET_IDXENTRY_SUB(fs, e) \
(tsk_getu64(fs->endian, (int)e + tsk_getu16(fs->endian, e->idxlen) - 8))
/************************************************************************
*/
typedef struct {
char label[128]; /* label in unicode */
uint8_t type[4];
uint8_t disp[4]; /* display rule */
uint8_t coll[4]; /* collation rule */
uint8_t flags[4];
uint8_t minsize[8]; /* minimum size */
uint8_t maxsize[8]; /* maximum size */
} ntfs_attrdef;
#define NTFS_ATTRDEF_FLAGS_IDX 0x02
#define NTFS_ATTRDEF_FLAGS_RES 0x40 /* always resident */
#define NTFS_ATTRDEF_FLAGS_NONRES 0x80 /* allowed to be non-resident */
/************************************************************************
* OBJECT_ID attribute
*/
typedef struct {
uint8_t objid1[8]; /* object id of file or directory */
uint8_t objid2[8];
uint8_t orig_volid1[8]; /* id of "birth" volume */
uint8_t orig_volid2[8];
uint8_t orig_objid1[8]; /* original object id */
uint8_t orig_objid2[8];
uint8_t orig_domid1[8]; /* id of "birth" domain */
uint8_t orig_domid2[8];
} ntfs_attr_objid;
#if TSK_USE_SID
/************************************************************************
* Self-relative security descriptor
*/
typedef struct {
uint8_t revision; /* Revision level of the security descriptor. */
uint8_t pad;
uint8_t control[2]; /* Flags qualifying the type of
the descriptor as well as the following fields. */
uint8_t owner[4]; /* Byte offset to a SID representing an object's
owner. If this is NULL, no owner SID is present in
the descriptor. */
uint8_t group[4]; /* Byte offset to a SID representing an object's
primary group. If this is NULL, no primary group
SID is present in the descriptor. */
uint8_t sacl[4]; /* Byte offset to a system ACL. Only valid, if
SE_SACL_PRESENT is set in the control field. If
SE_SACL_PRESENT is set but sacl is NULL, a NULL ACL
is specified. */
uint8_t dacl[4]; /* Byte offset to a discretionary ACL. Only valid, if
SE_DACL_PRESENT is set in the control field. If
SE_DACL_PRESENT is set but dacl is NULL, a NULL ACL
(unconditionally granting access) is specified. */
} ntfs_self_relative_security_descriptor;
/************************************************************************
* Structure used in Security Descriptor lookups
*/
typedef struct {
char *buffer;
size_t size;
size_t used;
} NTFS_SXX_BUFFER;
/************************************************************************
* SID attribute
*/
typedef struct {
uint8_t revision; /* Revision */
uint8_t sub_auth_count; /* Sub Authority Count */
uint8_t ident_auth[6]; /* NT Authority ::NOTE:: big endian number */
uint32_t sub_auth[1]; /* At least one sub_auth */
} ntfs_sid;
/************************************************************************
* SDS attribute
*/
typedef struct {
uint8_t hash_sec_desc[4]; /* Hash of Security Descriptor */
uint8_t sec_id[4]; /* Security ID */
uint8_t file_off[8]; /* Offset of this entry in this file */
uint8_t ent_size[4]; /* Size of this entry */
ntfs_self_relative_security_descriptor self_rel_sec_desc; /* Self-relative Security Descriptor */
} ntfs_attr_sds;
/************************************************************************
* SDH attribute
*/
typedef struct {
uint8_t data_off[2]; /* Offset to data */
uint8_t size[2]; /* Size of data */
uint8_t pad1[4]; /* Padding */
uint8_t ent_size[2]; /* Size of Index Entry */
uint8_t key_size[2]; /* Size of Index Key */
uint8_t flags[2]; /* Flags */
uint8_t pad2[2]; /* Padding */
uint8_t key_hash_sec_desc[4]; /* Hash of Security Descriptor */
uint8_t key_sec_id[4]; /* Security ID */
uint8_t data_hash_sec_desc[4]; /* Hash of Security Descriptor */
uint8_t data_sec_id[4]; /* Security ID */
uint8_t sec_desc_off[8]; /* Offset to Security Descriptor (in $SDS) */
uint8_t sec_desc_size[4]; /* Size of Security Descriptor (in $SDS) */
uint8_t pad3[4]; /* Padding */
} ntfs_attr_sdh;
/************************************************************************
* SII attribute
*/
typedef struct {
uint8_t data_off[2]; /* Offset to data */
uint8_t size[2]; /* Size of data */
uint8_t pad1[4]; /* Padding */
uint8_t ent_size[2]; /* Size of Index Entry */
uint8_t key_size[2]; /* Size of Index Key */
uint8_t flags[2]; /* Flags */
uint8_t pad2[2]; /* Padding */
uint8_t key_sec_id[4]; /* Security ID */
uint8_t data_hash_sec_desc[4]; /* Hash of Security Descriptor */
uint8_t data_sec_id[4]; /* Security ID */
uint8_t sec_desc_off[8]; /* Offset to Security Descriptor (in $SDS) */
uint8_t sec_desc_size[4]; /* Size of Security Descriptor (in $SDS) */
} ntfs_attr_sii;
#endif
typedef struct NTFS_PAR_MAP NTFS_PAR_MAP;
struct NTFS_PAR_MAP {
TSK_INUM_T par_addr; // parent dir address this structure is for
NTFS_PAR_MAP *next; // pointer to next structure in list
int alloc_cnt; // number of allocated INUM_T structures in addr
int used_cnt; // number of used entries in addr
TSK_INUM_T *addrs; // array for address of unallocated files in this dir
};
/************************************************************************
*/
typedef struct {
TSK_FS_INFO fs_info; /* super class */
ntfs_sb *fs;
uint8_t ver; /* version of NTFS - uses the VINFO flag */
TSK_FS_FILE *mft_file; /* contains the data for the mft entry for the mft */
const TSK_FS_ATTR *mft_data; /* Data run for MFT entry for MFT */
ntfs_mft *mft; /* cache for on-disk inode */
TSK_INUM_T mnum; /* number of above cached mft */
uint32_t csize_b; /* number of bytes in a cluster */
uint16_t ssize_b; /* number of bytes in a sector */
uint32_t mft_rsize_b; /* number of bytes per mft record */
uint32_t idx_rsize_b; /* number of bytes per idx record */
TSK_DADDR_T root_mft_addr; /* address of first mft entry */
uint8_t loading_the_MFT; /* set to 1 when initializing the setup */
TSK_FS_ATTR_RUN *bmap; /* Run of bitmap for clusters (linked list) */
char *bmap_buf; /* buffer to hold cached copy of bitmap */
TSK_DADDR_T bmap_buf_off; /* offset cluster in cached bitmap */
ntfs_attrdef *attrdef; // buffer of attrdef file contents
size_t attrdef_len; // length of addrdef buffer
NTFS_PAR_MAP *orphan_map; // map that lists par directory to its orphans.
#if TSK_USE_SID
NTFS_SXX_BUFFER sii_data;
NTFS_SXX_BUFFER sds_data;
#endif
} NTFS_INFO;
extern uint32_t nt2unixtime(uint64_t ntdate);
extern uint8_t ntfs_attrname_lookup(TSK_FS_INFO *, uint16_t, char *,
int);
extern TSK_RETVAL_ENUM
ntfs_dir_open_meta(TSK_FS_INFO * a_fs, TSK_FS_DIR ** a_fs_dir,
TSK_INUM_T a_addr);
extern void ntfs_orphan_map_free(NTFS_INFO * a_ntfs);
extern int ntfs_name_cmp(TSK_FS_INFO *, const char *, const char *);
#ifdef __cplusplus
}
#endif
#endif
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