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/* $Id: fsw_iso9660.h $ */
/** @file
* fsw_iso9660.h - ISO9660 file system driver header.
*/
/*
* Copyright (C) 2010-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
* ---------------------------------------------------------------------------
* This code is based on:
*
* Copyright (c) 2006 Christoph Pfisterer
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Christoph Pfisterer nor the names of the
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _FSW_ISO9660_H_
#define _FSW_ISO9660_H_
#define VOLSTRUCTNAME fsw_iso9660_volume
#define DNODESTRUCTNAME fsw_iso9660_dnode
#include "fsw_core.h"
//! Block size for ISO9660 volumes.
#define ISO9660_BLOCKSIZE 2048
#define ISO9660_BLOCKSIZE_BITS 11
//! Block number where the ISO9660 superblock resides.
#define ISO9660_SUPERBLOCK_BLOCKNO 16
#pragma pack(1)
typedef struct {
fsw_u16 lsb;
fsw_u16 msb;
} iso9660_u16;
typedef struct {
fsw_u32 lsb;
fsw_u32 msb;
} iso9660_u32;
#define ISOINT(lsbmsbvalue) ((lsbmsbvalue).lsb)
struct iso9660_dirrec {
fsw_u8 dirrec_length;
fsw_u8 ear_length;
iso9660_u32 extent_location;
iso9660_u32 data_length;
fsw_u8 recording_datetime[7];
fsw_u8 file_flags;
fsw_u8 file_unit_size;
fsw_u8 interleave_gap_size;
iso9660_u16 volume_sequence_number;
fsw_u8 file_identifier_length;
char file_identifier[1];
};
//#if sizeof(struct fsw_iso9660_dirrec) != 34
//#fail Structure fsw_iso9660_dirrec has wrong size
//#endif
struct iso9660_volume_descriptor {
fsw_u8 volume_descriptor_type;
char standard_identifier[5];
fsw_u8 volume_descriptor_version;
};
struct iso9660_primary_volume_descriptor {
fsw_u8 volume_descriptor_type;
char standard_identifier[5];
fsw_u8 volume_descriptor_version;
fsw_u8 unused1;
char system_identifier[32];
char volume_identifier[32];
fsw_u8 unused2[8];
iso9660_u32 volume_space_size;
fsw_u8 unused3[4];
fsw_u8 escape[3];
fsw_u8 unused4[25];
iso9660_u16 volume_set_size;
iso9660_u16 volume_sequence_number;
iso9660_u16 logical_block_size;
iso9660_u32 path_table_size;
fsw_u32 location_type_l_path_table;
fsw_u32 location_optional_type_l_path_table;
fsw_u32 location_type_m_path_table;
fsw_u32 location_optional_type_m_path_table;
struct iso9660_dirrec root_directory;
char volume_set_identifier[128];
char publisher_identifier[128];
char data_preparer_identifier[128];
char application_identifier[128];
char copyright_file_identifier[37];
char abstract_file_identifier[37];
char bibliographic_file_identifier[37];
char volume_creation_datetime[17];
char volume_modification_datetime[17];
char volume_expiration_datetime[17];
char volume_effective_datetime[17];
fsw_u8 file_structure_version;
fsw_u8 reserved1;
fsw_u8 application_use[512];
fsw_u8 reserved2[653];
};
//#if sizeof(struct fsw_iso9660_volume_descriptor) != 2048
//#fail Structure fsw_iso9660_volume_descriptor has wrong size
//#endif
#pragma pack()
struct iso9660_dirrec_buffer {
fsw_u32 ino;
struct fsw_string name;
struct iso9660_dirrec dirrec;
char dirrec_buffer[222];
};
/**
* ISO9660: Volume structure with ISO9660-specific data.
*/
struct fsw_iso9660_volume {
struct fsw_volume g; //!< Generic volume structure
/*Note: don't move g!*/
int fJoliet;
/*Joliet specific fields*/
int fRockRidge;
/*Rock Ridge specific fields*/
int rr_susp_skip;
struct iso9660_primary_volume_descriptor *primary_voldesc; //!< Full Primary Volume Descriptor
};
/**
* ISO9660: Dnode structure with ISO9660-specific data.
*/
struct fsw_iso9660_dnode {
struct fsw_dnode g; //!< Generic dnode structure
struct iso9660_dirrec dirrec; //!< Fixed part of the directory record (i.e. w/o name)
};
struct fsw_rock_ridge_susp_entry
{
fsw_u8 sig[2];
fsw_u8 len;
fsw_u8 ver;
};
struct fsw_rock_ridge_susp_sp
{
struct fsw_rock_ridge_susp_entry e;
fsw_u8 magic[2];
fsw_u8 skip;
};
struct fsw_rock_ridge_susp_nm
{
struct fsw_rock_ridge_susp_entry e;
fsw_u8 flags;
fsw_u8 name[1];
};
#define RR_NM_CONT (1<<0)
#define RR_NM_CURR (1<<1)
#define RR_NM_PARE (1<<2)
union fsw_rock_ridge_susp_ce
{
struct X{
struct fsw_rock_ridge_susp_entry e;
iso9660_u32 block_loc;
iso9660_u32 offset;
iso9660_u32 len;
} X;
fsw_u8 raw[28];
};
#endif
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