/usr/include/tsk/fs/tsk_iso9660.h is in libtsk-dev 4.1.3-4.
This file is owned by root:root, with mode 0o644.
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** The Sleuth Kit
**
** This software is subject to the IBM Public License ver. 1.0,
** which was displayed prior to download and is included in the readme.txt
** file accompanying the Sleuth Kit files. It may also be requested from:
** Crucial Security Inc.
** 14900 Conference Center Drive
** Chantilly, VA 20151
**
** Wyatt Banks [wbanks@crucialsecurity.com]
** Copyright (c) 2005 Crucial Security Inc. All rights reserved.
**
** Brian Carrier [carrier <at> sleuthkit [dot] org]
** Copyright (c) 2003-2011 Brian Carrier. All rights reserved
**
** Copyright (c) 1997,1998,1999, International Business Machines
** Corporation and others. All Rights Reserved.
*/
/* TCT
* LICENSE
* This software is distributed under the IBM Public License.
* AUTHOR(S)
* Wietse Venema
* IBM T.J. Watson Research
* P.O. Box 704
* Yorktown Heights, NY 10598, USA
--*/
/*
** You may distribute the Sleuth Kit, or other software that incorporates
** part of all of the Sleuth Kit, in object code form under a license agreement,
** provided that:
** a) you comply with the terms and conditions of the IBM Public License
** ver 1.0; and
** b) the license agreement
** i) effectively disclaims on behalf of all Contributors all warranties
** and conditions, express and implied, including warranties or
** conditions of title and non-infringement, and implied warranties
** or conditions of merchantability and fitness for a particular
** purpose.
** ii) effectively excludes on behalf of all Contributors liability for
** damages, including direct, indirect, special, incidental and
** consequential damages such as lost profits.
** iii) states that any provisions which differ from IBM Public License
** ver. 1.0 are offered by that Contributor alone and not by any
** other party; and
** iv) states that the source code for the program is available from you,
** and informs licensees how to obtain it in a reasonable manner on or
** through a medium customarily used for software exchange.
**
** When the Sleuth Kit or other software that incorporates part or all of
** the Sleuth Kit is made available in source code form:
** a) it must be made available under IBM Public License ver. 1.0; and
** b) a copy of the IBM Public License ver. 1.0 must be included with
** each copy of the program.
*/
/*
* Contains the structures and function APIs for ISO9660 file system support.
*/
/* refernece documents used:
* IEEE P1281 - System Use Sharing Protocol, version 1.12
* IEEE P1282 - Rock Ridge Interchange Protocol, version 1.12
* ECMA-119 - Volume and File Structure of CDROM for Information Interchange,
* 2nd Edition
*/
#ifndef _TSK_ISO9660_H
#define _TSK_ISO9660_H
/* This part borrowed from the bsd386 isofs */
#define ISODCL(from, to) (to - from + 1)
/*
* Constants
*/
#define ISO9660_FIRSTINO 0
#define ISO9660_ROOTINO 0
#define ISO9660_FILE_CONTENT_LEN sizeof(TSK_DADDR_T)
#define ISO9660_SBOFF 32768
#define ISO9660_SSIZE_B 2048
#define ISO9660_MIN_BLOCK_SIZE 512
#define ISO9660_MAX_BLOCK_SIZE 2048
#define ISO9660_MAGIC "CD001"
/* values used in volume descriptor type */
#define ISO9660_BOOT_RECORD 0 /* boot record */
#define ISO9660_PRIM_VOL_DESC 1 /* primary volume descriptor */
#define ISO9660_SUPP_VOL_DESC 2 /* supplementary volume descriptor */
#define ISO9660_VOL_PART_DESC 3 /* volume partition descriptor */
#define ISO9660_RESERVE_FLOOR 4 /* 4-254 are reserved */
#define ISO9660_RESERVE_CEIL 254
#define ISO9660_VOL_DESC_SET_TERM 255 /* volume descriptor set terminator */
#define ISO9660_MAXNAMLEN_STD 128 ///< Maximum length of standard name
#define ISO9660_MAXNAMLEN_JOL 128 ///< maximum UTF-16 joliet name (in bytes)
#define ISO9660_MAXNAMLEN (ISO9660_MAXNAMLEN_JOL << 1) // mult jol by 2 to account for UTF-16 to UTF-8 conversion
/* Bits in permissions used in extended attribute records. */
#define ISO9660_BIT_UR 0x0010
#define ISO9660_BIT_UX 0x0040
#define ISO9660_BIT_GR 0x0100
#define ISO9660_BIT_GX 0x0400
#define ISO9660_BIT_AR 0x1000
#define ISO9660_BIT_AX 0x4000
/* directory descriptor flags */
#define ISO9660_FLAG_HIDE 0x01 /* Hide file -- called EXISTENCE */
#define ISO9660_FLAG_DIR 0x02 /* Directory */
#define ISO9660_FLAG_ASSOC 0x04 /* File is associated */
#define ISO9660_FLAG_RECORD 0X08 /* Record format in extended attr */
#define ISO9660_FLAG_PROT 0X10 /* No read / exec perm in ext attr */
#define ISO9660_FLAG_RES1 0X20 /* reserved */
#define ISO9660_FLAG_RES2 0x40 /* reserved */
#define ISO9660_FLAG_MULT 0X80 /* not final entry of mult ext file */
/* POSIX modes used in ISO9660 not already defined */
#define MODE_IFSOCK 0140000 /* socket */
#define MODE_IFLNK 0120000 /* symbolic link */
#define MODE_IFDIR 0040000 /* directory */
#define MODE_IFIFO 0010000 /* pipe or fifo */
#define MODE_IFBLK 0060000 /* block special */
#define MODE_IFCHR 0020000 /* character special */
/* used to determine if get directory entry function needs to handle Joliet */
#define ISO9660_TYPE_PVD 0
#define ISO9660_TYPE_SVD 1
#define ISO9660_CTYPE_ASCII 0
#define ISO9660_CTYPE_UTF16 1
/* recording date and time */
typedef struct {
uint8_t year; /* years since 1900 */
uint8_t month; /* 1-12 */
uint8_t day; /* 1-31 */
uint8_t hour; /* 0-23 */
uint8_t min; /* 0-59 */
uint8_t sec; /* 0-59 */
int8_t gmt_off; /* greenwich mean time offset (in 15 minute intervals) */
} record_data;
/* iso 9660 directory record */
typedef struct {
uint8_t entry_len; /* length of directory record */
uint8_t ext_len; /* extended attribute record length */
uint8_t ext_loc_l[4]; /* location of extent - le */
uint8_t ext_loc_m[4]; /* location of extent - be */
uint8_t data_len_l[4]; /* data length - le */
uint8_t data_len_m[4]; /* data length - be */
record_data rec_time; /* recording date and time (7 bytes) */
int8_t flags; /* file flags */
uint8_t unit_sz; /* file unit size */
uint8_t gap_sz; /* interleave gap size */
uint8_t seq[4]; /* volume sequence number (2|16) */
uint8_t fi_len; /* length of file identifier in bytes */
} iso9660_dentry;
/* This is a dummy struct used to make reading an entire PVD easier,
* due to the fact that the root directory has a 1 byte name that
* wouldn't be worth adding to the regular struct.
*/
typedef struct {
uint8_t length; /* length of directory record */
uint8_t ext_len; /* extended attribute record length */
uint8_t ext_loc_l[4]; /* location of extent - le */
uint8_t ext_loc_m[4]; /* location of extent - be */
uint8_t data_len_l[4]; /* data length - le */
uint8_t data_len_m[4]; /* data length - be */
record_data rec; /* recording date and time */
int8_t flags; /* file flags */
uint8_t unit_sz; /* file unit size */
uint8_t gap_sz; /* interleave gap size */
uint8_t seq[4]; /* volume sequence number (2|16) */
uint8_t len; /* length of file identifier */
char name;
} iso9660_root_dentry;
/* data and time format
* all are stored as "digits" according to specifications for iso9660
*/
typedef struct {
uint8_t year[4]; /* 1 to 9999 */
uint8_t month[2]; /* 1 to 12 */
uint8_t day[2]; /* 1 to 31 */
uint8_t hour[2]; /* 0 to 23 */
uint8_t min[2]; /* 0 to 59 */
uint8_t sec[2]; /* 0 to 59 */
uint8_t hun[2]; /* hundredths of a second */
uint8_t gmt_off; /* GMT offset */
} date_time;
/* generic volume descriptor */
typedef struct {
uint8_t type; ///< volume descriptor type
char magic[ISODCL(2, 6)]; ///< magic number. "CD001"
char ver[ISODCL(7, 7)]; ///< volume descriptor version
char x[ISODCL(8, 2048)]; ///< Depends on descriptor type
} iso9660_gvd;
/* primary volume descriptor */
typedef struct {
char unused1[ISODCL(1, 8)]; /* should be 0. unused. */
char sys_id[ISODCL(9, 40)]; /* system identifier */
char vol_id[ISODCL(41, 72)]; /* volume identifier */
char unused2[ISODCL(73, 80)]; /* should be 0. unused. */
uint8_t vs_sz_l[ISODCL(81, 84)]; /* volume space size in blocks - le */
uint8_t vs_sz_m[ISODCL(85, 88)]; /* volume space size in blocks - be */
char unused3[ISODCL(89, 120)]; /* should be 0. unused. */
uint8_t vol_set_l[ISODCL(121, 122)]; /* volume set size - le */
uint8_t vol_set_m[ISODCL(123, 124)]; /* volume set size - be */
uint8_t vol_seq_l[ISODCL(125, 126)]; /* volume sequence number -le */
uint8_t vol_seq_m[ISODCL(127, 128)]; /* volume sequence number - be */
uint8_t blk_sz_l[ISODCL(129, 130)]; /* logical block size - le */
uint8_t blk_sz_m[ISODCL(131, 132)]; /* logical block size - be */
uint8_t pt_size_l[ISODCL(133, 136)]; /* path table size in bytes - le */
uint8_t pt_size_m[ISODCL(137, 140)]; /* path table size in bytes - be */
uint8_t pt_loc_l[ISODCL(141, 144)]; /* log block addr of type L path tbl. */
uint8_t pt_opt_loc_l[ISODCL(145, 148)]; /* log block addr of optional L path tbl */
uint8_t pt_loc_m[ISODCL(149, 152)]; /* log block addr of type M path tbl. */
uint8_t pt_opt_loc_m[ISODCL(153, 156)]; /* log block addr of optional M path tbl */
iso9660_root_dentry dir_rec; /* directory record for root dir */
char vol_setid[ISODCL(191, 318)]; /* volume set identifier */
unsigned char pub_id[ISODCL(319, 446)]; /* publisher identifier */
unsigned char prep_id[ISODCL(447, 574)]; /* data preparer identifier */
unsigned char app_id[ISODCL(575, 702)]; /* application identifier */
unsigned char copy_id[ISODCL(703, 739)]; /* copyright file identifier */
unsigned char abs_id[ISODCL(740, 776)]; /* abstract file identifier */
unsigned char bib_id[ISODCL(777, 813)]; /* bibliographic file identifier */
date_time make_date; /* volume creation date/time */
date_time mod_date; /* volume modification date/time */
date_time exp_date; /* volume expiration date/time */
date_time ef_date; /* volume effective date/time */
uint8_t fs_ver; /* file structure version */
char res[ISODCL(883, 883)]; /* reserved */
char app_use[ISODCL(884, 1395)]; /* application use */
char reserv[ISODCL(1396, 2048)]; /* reserved */
} iso9660_pvd;
/* supplementary volume descriptor */
typedef struct {
uint8_t flags[ISODCL(1, 8)]; /* volume flags */
char sys_id[ISODCL(9, 40)]; /* system identifier */
char vol_id[ISODCL(41, 72)]; /* volume identifier */
char unused2[ISODCL(73, 80)]; /* should be 0. unused. */
uint8_t vs_sz_l[ISODCL(81, 84)]; /* volume space size in blocks - le */
uint8_t vs_sz_m[ISODCL(85, 88)]; /* volume space size in blocks - be */
uint8_t esc_seq[ISODCL(89, 120)]; /* escape sequences */
uint8_t vol_set_l[ISODCL(121, 122)]; /* volume set size - le */
uint8_t vol_set_m[ISODCL(123, 124)]; /* volume set size - be */
uint8_t vol_seq_l[ISODCL(125, 126)]; /* volume sequence number -le */
uint8_t vol_seq_m[ISODCL(127, 128)]; /* volume sequence number - be */
uint8_t blk_sz_l[ISODCL(129, 130)]; /* logical block size - le */
uint8_t blk_sz_m[ISODCL(131, 132)]; /* logical block size - be */
uint8_t pt_size_l[ISODCL(133, 136)]; /* path table size in bytes - le */
uint8_t pt_size_m[ISODCL(137, 140)]; /* path table size in bytes - be */
uint8_t pt_loc_l[ISODCL(141, 144)]; /* log block addr of type L path tbl. */
uint8_t pt_opt_loc_l[ISODCL(145, 148)]; /* log block addr of optional type L path tbl. */
uint8_t pt_loc_m[ISODCL(149, 152)]; /* log block addr of type M path tbl. */
uint8_t pt_opt_loc_m[ISODCL(153, 156)]; /* log block addr of optional type M path tbl. */
iso9660_root_dentry dir_rec; /* directory record for root dir */
char vol_setid[ISODCL(191, 318)]; /* volume set identifier */
unsigned char pub_id[ISODCL(319, 446)]; /* publisher identifier */
unsigned char prep_id[ISODCL(447, 574)]; /* data preparer identifier */
unsigned char app_id[ISODCL(575, 702)]; /* application identifier */
unsigned char copy_id[ISODCL(703, 739)]; /* copyright file identifier */
unsigned char abs_id[ISODCL(740, 776)]; /* abstract file identifier */
unsigned char bib_id[ISODCL(777, 813)]; /* bibliographic file identifier */
date_time make_date; /* volume creation date/time */
date_time mod_date; /* volume modification date/time */
date_time exp_date; /* volume expiration date/time */
date_time ef_date; /* volume effective date/time */
char fs_ver[ISODCL(882, 882)]; /* file structure version */
char res[ISODCL(883, 883)]; /* reserved */
char app_use[ISODCL(884, 1395)]; /* application use */
char reserv[ISODCL(1396, 2048)]; /* reserved */
} iso9660_svd;
/* iso 9660 boot record */
typedef struct {
char boot_sys_id[ISODCL(8, 39)]; /* boot system identifier */
char boot_id[ISODCL(40, 71)]; /* boot identifier */
char system_use[ISODCL(72, 2048)]; /* system use */
} iso_bootrec;
/* path table record */
typedef struct {
uint8_t len_di; /* length of directory identifier */
uint8_t attr_len; /* extended attribute record length */
uint8_t ext_loc[4]; /* location of extent */
uint8_t par_dir[2]; /* parent directory number (its entry in the path table) */
} path_table_rec;
/* extended attribute record */
typedef struct {
uint8_t uid[ISODCL(1, 4)]; /* owner identification */
uint8_t gid[ISODCL(5, 8)]; /* group identification */
uint8_t mode[ISODCL(9, 10)]; /* permissions */
uint8_t cre[ISODCL(11, 27)]; /* file creation date/time */
uint8_t mod[ISODCL(28, 44)]; /* file modification d/t */
uint8_t exp[ISODCL(45, 61)]; /* file expiration d/t */
uint8_t eff[ISODCL(62, 78)]; /* file effective d/t */
uint8_t fmt[ISODCL(79, 79)]; /* record format */
uint8_t attr[ISODCL(80, 80)]; /* record attributes */
uint8_t len[ISODCL(81, 84)]; /* record length */
uint8_t sys_id[ISODCL(85, 116)]; /* system identifier */
uint8_t uns[ISODCL(117, 180)]; /* system use, not specified */
uint8_t e_ver[ISODCL(181, 181)]; /* extended attribute record version */
uint8_t len_esc[ISODCL(182, 182)]; /* length of escape sequences */
} ext_attr_rec;
#define ISO_EA_IRSYS 0x0001
#define ISO_EA_IWSYS 0x0002
#define ISO_EA_IXSYS 0x0004
#define ISO_EA_IRUSR 0x0010
#define ISO_EA_IWUSR 0x0020
#define ISO_EA_IXUSR 0x0040
#define ISO_EA_IRGRP 0x0100
#define ISO_EA_IWGRP 0x0200
#define ISO_EA_IXGRP 0x0400
#define ISO_EA_IROTH 0x1000
#define ISO_EA_IWOTH 0x2000
#define ISO_EA_IXOTH 0x4000
/* primary volume descriptor linked list node */
typedef struct iso9660_pvd_node {
iso9660_pvd pvd;
struct iso9660_pvd_node *next;
} iso9660_pvd_node;
/* supplementary volume descriptor linked list node */
typedef struct iso9660_svd_node {
iso9660_svd svd;
struct iso9660_svd_node *next;
} iso9660_svd_node;
/* RockRidge extension info */
typedef struct {
TSK_UID_T uid /* owner */ ;
TSK_GID_T gid; /* group */
uint16_t mode; /* posix file mode */
uint32_t nlink; /* number of links */
char fn[ISO9660_MAXNAMLEN_STD]; /* alternate filename */
} rockridge_ext;
/** \internal
* Internally used structure to hold basic inode information.
*/
typedef struct {
iso9660_dentry dr; /* directory record */
ext_attr_rec *ea; /* extended attribute record */
char fn[ISO9660_MAXNAMLEN + 1]; /* file name */
rockridge_ext *rr; /* RockRidge Extensions */
int version;
uint8_t is_orphan; /* 1 if the file was found from processing other volume descriptors besides the first one, 0 otherwise */
TSK_OFF_T susp_off; ///< Byte offset in image of SUSP (or NULL)
TSK_OFF_T susp_len; ///< Length in bytes of SUSP
} iso9660_inode;
/* inode linked list node */
typedef struct iso9660_inode_node {
iso9660_inode inode;
TSK_OFF_T offset; /* byte offset of first block of file in file system */
TSK_OFF_T dentry_offset; /* byte offset of directory entry structure in file system */
TSK_INUM_T inum; /* identifier of inode (assigned by TSK) */
int size; /* number of bytes in file */
int ea_size; /* length of ext attributes */
struct iso9660_inode_node *next;
} iso9660_inode_node;
/* The all important ISO_INFO struct */
typedef struct {
TSK_FS_INFO fs_info; /* SUPER CLASS */
uint32_t path_tab_addr; /* address of path table */
uint32_t root_addr; /* address of root dir extent */
iso9660_pvd_node *pvd; ///< Head of primary volume descriptor list (there should be only one...)
iso9660_svd_node *svd; ///< Head of secondary volume descriptor list
iso9660_inode_node *in_list; /* list of inodes */
uint8_t rr_found; /* 1 if rockridge found */
} ISO_INFO;
extern TSK_RETVAL_ENUM iso9660_dir_open_meta(TSK_FS_INFO * a_fs,
TSK_FS_DIR ** a_fs_dir, TSK_INUM_T a_addr);
extern uint8_t iso9660_dinode_load(ISO_INFO * iso, TSK_INUM_T inum,
iso9660_inode * dinode);
extern int iso9660_name_cmp(TSK_FS_INFO *, const char *, const char *);
/**********************************************************
*
* RockRidge Extensions
*
**********************************************************/
typedef struct {
char sig[2];
uint8_t len;
char ver;
} iso9660_susp_head;
/** \internal
* SUSP Continuation Entry (CE)
*/
typedef struct {
char sig[2];
uint8_t len;
char ver;
uint8_t blk_l[4]; ///< Block location of continuation area
uint8_t blk_m[4];
uint8_t offset_l[4]; ///< Offset to start of continuation area (in bytes)
uint8_t offset_m[4];
uint8_t celen_l[4]; ///< Length of continuation area (in bytes)
uint8_t celen_m[4];
} iso9660_susp_ce;
/** \internal
* SUSP SP entry
*/
typedef struct {
char sig[2];
uint8_t len;
char ver;
uint8_t chk[2];
uint8_t skip;
} iso9660_susp_sp;
typedef struct {
char sig[2];
uint8_t len;
char ver;
uint8_t len_id; ///< length of extension id (in bytes)
uint8_t len_des; ///< length of extension desc (in bytes)
uint8_t len_src; ///< Length of extension spec source (in bytes)
uint8_t ext_ver; ///< Version id
char ext_id[1]; ///< Extension ID text (with length of len_id);
// next is the extension descriptor text
// next is the extension source text
} iso9660_susp_er;
/* Rockridge ISO9660 system use field entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "RR" */
uint8_t len[ISODCL(3, 3)]; /* length of system use entry */
uint8_t ver[ISODCL(4, 4)]; /* system use entry version */
uint8_t foo[ISODCL(5, 5)]; /* foo */
} rr_sys_use;
/* Rockridge PX entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "PX" */
uint8_t len; /* length, should be 44 */
uint8_t ver; /* system use entry version (1) */
uint8_t mode_l[ISODCL(5, 8)]; /* POSIX file mode - le */
uint8_t mode_m[ISODCL(9, 12)]; /* POSIX file mode - be */
uint8_t links_l[ISODCL(13, 16)]; /* POSIX file links - le */
uint8_t links_m[ISODCL(17, 20)]; /* POSIX file links - be */
uint8_t uid_l[ISODCL(21, 24)]; /* POSIX user id - le */
uint8_t uid_m[ISODCL(25, 28)]; /* POSIX user id - be */
uint8_t gid_l[ISODCL(29, 32)]; /* POSIX group id - le */
uint8_t gid_m[ISODCL(23, 36)]; /* POSIX group id - be */
/* rockridge docs say this is here, k3b disagrees... hmmmm */
// uint8_t serial[ISODCL(37,44)]; /* POSIX file serial number */
} iso9660_rr_px_entry;
/* Rockridge PN entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "PN" */
uint8_t len; /* length, should be 20 */
uint8_t ver; /* system use entry version (1) */
uint8_t dev_h_l[ISODCL(5, 8)]; /* top 32 bits of device # */
uint8_t dev_h_m[ISODCL(9, 12)]; /* top 32 bits of device # */
uint8_t dev_l_l[ISODCL(13, 16)]; /* low 32 bits of device # */
uint8_t dev_l_m[ISODCL(17, 20)]; /* low 32 bits of device # */
} iso9660_rr_pn_entry;
/* Rockridge SL entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "SL" */
uint8_t len; /* length */
uint8_t ver; /* system use entry version (1) */
uint8_t flags; /* flags */
} iso9660_rr_sl_entry;
/* Rockridge NM entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "NM" */
uint8_t len; /* length of alternate name */
uint8_t ver[ISODCL(4, 4)]; /* system use entry version (1) */
uint8_t flags[ISODCL(5, 5)]; /* flags */
char name[1]; // start of the name
} iso9660_rr_nm_entry;
/* Rockridge CL entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "CL" */
uint8_t len[ISODCL(3, 3)]; /* length, should be 12 */
uint8_t ver[ISODCL(4, 4)]; /* system use entry version (1) */
uint8_t par_loc[ISODCL(5, 12)]; /* location of parent directory */
} iso9660_rr_cl_entry;
/* Rockridge RE entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "RE" */
uint8_t len[ISODCL(3, 3)]; /* length, should be 4 */
uint8_t ver[ISODCL(4, 4)]; /* system use entry version (1) */
} iso9660_rr_re_entry;
/* Rockridge TF entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "TF" */
uint8_t len[ISODCL(3, 3)]; /* length of TF entry */
uint8_t ver[ISODCL(4, 4)]; /* system use entry version (1) */
uint8_t flags[ISODCL(5, 5)]; /* flags */
} iso9660_rr_tf_entry;
/* Rockridge SF entry */
typedef struct {
char sig[ISODCL(1, 2)]; /* signature, should be "SF" */
uint8_t len[ISODCL(3, 3)]; /* length, should be 21 */
uint8_t ver[ISODCL(4, 4)]; /* system use entry version (1) */
uint8_t vfs_h[ISODCL(5, 12)]; /* virtual file size high */
uint8_t vfs_l[ISODCL(13, 20)]; /* virtual file size low */
uint8_t depth[ISODCL(21, 21)]; /* table depth */
} iso9660_rr_sf_entry;
#endif
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