disk/part_iso.h


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/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * (C) Copyright 2001
 * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch.
 */
#ifndef _PART_CD_H
#define _PART_CD_H

#define BRVD	0x11
#define PVD_OFFSET 0x10


typedef struct iso_boot_rec {
	unsigned char desctype;			/* type of Volume descriptor: 0 = boot record, 1 = primary, 2 = Supplement, 3 = volume part 0xff trminator */
	unsigned char stand_ident[5]; /* "CD001" */
	unsigned char vers;					/* Version */
	char					ident_str[0x20]; /* Ident String "EL TORITO SPECIFICATION" */
	unsigned char unused[0x20];		/* unused */
	unsigned char pointer[4];		/* absolute pointer to Boot Catalog */
} iso_boot_rec_t;


typedef struct iso_pri_rec {
	unsigned char desctype;			/* type of Volume descriptor: 0 = boot record, 1 = primary, 2 = Supplement, 3 = volume part 0xff trminator */
	unsigned char stand_ident[5]; /* "CD001" */
	unsigned char vers;					/* Version */
	unsigned char unused;
	char					sysid[32];		/* system Identifier */
	char					volid[32];		/* volume Identifier */
	unsigned char zeros1[8];		/* unused */
	unsigned int volsiz_LE;		/* volume size Little Endian */
	unsigned int volsiz_BE;		/* volume size Big Endian */
	unsigned char zeros2[32];		/* unused */
	unsigned short setsize_LE;	/* volume set size LE */
	unsigned short setsize_BE;	/* volume set size BE */
	unsigned short seqnum_LE;		/* volume sequence number LE */
	unsigned short seqnum_BE;		/* volume sequence number BE */
	unsigned short secsize_LE;	/* sector size LE */
	unsigned short secsize_BE;	/* sector size BE */
	unsigned int pathtablen_LE;/* Path Table size LE */
	unsigned int pathtablen_BE;/* Path Table size BE */
	unsigned int firstsek_LEpathtab1_LE; /* location of first occurrence of little endian type path table */
	unsigned int firstsek_LEpathtab2_LE; /* location of optional occurrence of little endian type path table */
	unsigned int firstsek_BEpathtab1_BE; /* location of first occurrence of big endian type path table */
	unsigned int firstsek_BEpathtab2_BE; /* location of optional occurrence of big endian type path table */
	unsigned char rootdir[34];	/* directory record for root dir */
	char					volsetid[128];/* Volume set identifier */
	char					pubid[128];		/* Publisher identifier */
	char					dataprepid[128]; /* data preparer identifier */
	char					appid[128];		/* application identifier */
	char					copyr[37];		/* copyright string */
	char					abstractfileid[37]; /* abstract file identifier */
	char					bibliofileid[37]; /* bibliographic file identifier */
	unsigned char creationdate[17]; /* creation date */
	unsigned char modify[17];		/* modification date */
	unsigned char expire[17];		/* expiring date */
	unsigned char effective[17];/* effective date */
	unsigned char filestruc_ver;	/* file structur version */
} iso_pri_rec_t;

typedef struct iso_sup_rec {
	unsigned char desctype;			/* type of Volume descriptor: 0 = boot record, 1 = primary, 2 = Supplement, 3 = volume part 0xff trminator */
	unsigned char stand_ident[5]; /* "CD001" */
	unsigned char vers;					/* Version */
	unsigned char volumeflags;	/* if bit 0 = 0 => all escape sequences are according ISO 2375 */
	char					sysid[32];		/* system Identifier */
	char					volid[32];		/* volume Identifier */
	unsigned char zeros1[8];		/* unused */
	unsigned int volsiz_LE;		/* volume size Little Endian */
	unsigned int volsiz_BE;		/* volume size Big Endian */
	unsigned char escapeseq[32];/* Escape sequences */
	unsigned short setsize_LE;	/* volume set size LE */
	unsigned short setsize_BE;	/* volume set size BE */
	unsigned short seqnum_LE;		/* volume sequence number LE */
	unsigned short seqnum_BE;		/* volume sequence number BE */
	unsigned short secsize_LE;	/* sector size LE */
	unsigned short secsize_BE;	/* sector size BE */
	unsigned int pathtablen_LE;/* Path Table size LE */
	unsigned int pathtablen_BE;/* Path Table size BE */
	unsigned int firstsek_LEpathtab1_LE; /* location of first occurrence of little endian type path table */
	unsigned int firstsek_LEpathtab2_LE; /* location of optional occurrence of little endian type path table */
	unsigned int firstsek_BEpathtab1_BE; /* location of first occurrence of big endian type path table */
	unsigned int firstsek_BEpathtab2_BE; /* location of optional occurrence of big endian type path table */
	unsigned char rootdir[34];	/* directory record for root dir */
	char					volsetid[128];/* Volume set identifier */