| 1 | /* $Id: fsw_iso9660.h 82968 2020-02-04 10:35:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | * fsw_iso9660.h - ISO9660 file system driver header.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2010-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | * ---------------------------------------------------------------------------
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| 26 | * This code is based on:
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| 27 | *
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| 28 | * Copyright (c) 2006 Christoph Pfisterer
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| 29 | *
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| 30 | * Redistribution and use in source and binary forms, with or without
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| 31 | * modification, are permitted provided that the following conditions are
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| 32 | * met:
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| 33 | *
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| 34 | * * Redistributions of source code must retain the above copyright
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| 35 | * notice, this list of conditions and the following disclaimer.
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| 36 | *
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| 37 | * * Redistributions in binary form must reproduce the above copyright
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| 38 | * notice, this list of conditions and the following disclaimer in the
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| 39 | * documentation and/or other materials provided with the
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| 40 | * distribution.
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| 41 | *
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| 42 | * * Neither the name of Christoph Pfisterer nor the names of the
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| 43 | * contributors may be used to endorse or promote products derived
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| 44 | * from this software without specific prior written permission.
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| 45 | *
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| 46 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 47 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 48 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| 49 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 50 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 51 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 52 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 53 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 54 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 55 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 56 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 57 | */
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| 58 |
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| 59 | #ifndef _FSW_ISO9660_H_
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| 60 | #define _FSW_ISO9660_H_
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| 61 |
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| 62 | #define VOLSTRUCTNAME fsw_iso9660_volume
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| 63 | #define DNODESTRUCTNAME fsw_iso9660_dnode
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| 64 | #include "fsw_core.h"
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| 65 |
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| 66 |
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| 67 | //! Block size for ISO9660 volumes.
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| 68 | #define ISO9660_BLOCKSIZE 2048
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| 69 | #define ISO9660_BLOCKSIZE_BITS 11
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| 70 | //! Block number where the ISO9660 superblock resides.
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| 71 | #define ISO9660_SUPERBLOCK_BLOCKNO 16
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| 72 |
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| 73 |
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| 74 | #pragma pack(1)
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| 75 |
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| 76 | typedef struct {
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| 77 | fsw_u16 lsb;
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| 78 | fsw_u16 msb;
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| 79 | } iso9660_u16;
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| 80 |
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| 81 | typedef struct {
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| 82 | fsw_u32 lsb;
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| 83 | fsw_u32 msb;
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| 84 | } iso9660_u32;
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| 85 |
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| 86 | #define ISOINT(lsbmsbvalue) ((lsbmsbvalue).lsb)
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| 87 |
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| 88 | struct iso9660_dirrec {
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| 89 | fsw_u8 dirrec_length;
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| 90 | fsw_u8 ear_length;
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| 91 | iso9660_u32 extent_location;
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| 92 | iso9660_u32 data_length;
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| 93 | fsw_u8 recording_datetime[7];
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| 94 | fsw_u8 file_flags;
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| 95 | fsw_u8 file_unit_size;
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| 96 | fsw_u8 interleave_gap_size;
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| 97 | iso9660_u16 volume_sequence_number;
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| 98 | fsw_u8 file_identifier_length;
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| 99 | char file_identifier[1];
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| 100 | };
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| 101 | //#if sizeof(struct fsw_iso9660_dirrec) != 34
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| 102 | //#fail Structure fsw_iso9660_dirrec has wrong size
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| 103 | //#endif
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| 104 |
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| 105 | struct iso9660_volume_descriptor {
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| 106 | fsw_u8 volume_descriptor_type;
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| 107 | char standard_identifier[5];
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| 108 | fsw_u8 volume_descriptor_version;
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| 109 | };
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| 110 |
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| 111 | struct iso9660_primary_volume_descriptor {
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| 112 | fsw_u8 volume_descriptor_type;
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| 113 | char standard_identifier[5];
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| 114 | fsw_u8 volume_descriptor_version;
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| 115 | fsw_u8 unused1;
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| 116 | char system_identifier[32];
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| 117 | char volume_identifier[32];
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| 118 | fsw_u8 unused2[8];
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| 119 | iso9660_u32 volume_space_size;
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| 120 | fsw_u8 unused3[4];
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| 121 | fsw_u8 escape[3];
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| 122 | fsw_u8 unused4[25];
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| 123 | iso9660_u16 volume_set_size;
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| 124 | iso9660_u16 volume_sequence_number;
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| 125 | iso9660_u16 logical_block_size;
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| 126 | iso9660_u32 path_table_size;
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| 127 | fsw_u32 location_type_l_path_table;
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| 128 | fsw_u32 location_optional_type_l_path_table;
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| 129 | fsw_u32 location_type_m_path_table;
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| 130 | fsw_u32 location_optional_type_m_path_table;
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| 131 | struct iso9660_dirrec root_directory;
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| 132 | char volume_set_identifier[128];
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| 133 | char publisher_identifier[128];
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| 134 | char data_preparer_identifier[128];
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| 135 | char application_identifier[128];
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| 136 | char copyright_file_identifier[37];
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| 137 | char abstract_file_identifier[37];
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| 138 | char bibliographic_file_identifier[37];
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| 139 | char volume_creation_datetime[17];
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| 140 | char volume_modification_datetime[17];
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| 141 | char volume_expiration_datetime[17];
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| 142 | char volume_effective_datetime[17];
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| 143 | fsw_u8 file_structure_version;
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| 144 | fsw_u8 reserved1;
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| 145 | fsw_u8 application_use[512];
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| 146 | fsw_u8 reserved2[653];
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| 147 | };
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| 148 | //#if sizeof(struct fsw_iso9660_volume_descriptor) != 2048
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| 149 | //#fail Structure fsw_iso9660_volume_descriptor has wrong size
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| 150 | //#endif
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| 151 |
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| 152 | #pragma pack()
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| 153 |
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| 154 | struct iso9660_dirrec_buffer {
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| 155 | fsw_u32 ino;
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| 156 | struct fsw_string name;
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| 157 | struct iso9660_dirrec dirrec;
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| 158 | char dirrec_buffer[222];
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| 159 | };
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| 160 |
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| 161 |
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| 162 | /**
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| 163 | * ISO9660: Volume structure with ISO9660-specific data.
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| 164 | */
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| 165 |
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| 166 | struct fsw_iso9660_volume {
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| 167 | struct fsw_volume g; //!< Generic volume structure
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| 168 | /*Note: don't move g!*/
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| 169 | int fJoliet;
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| 170 | /*Joliet specific fields*/
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| 171 | int fRockRidge;
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| 172 | /*Rock Ridge specific fields*/
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| 173 | int rr_susp_skip;
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| 174 |
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| 175 | struct iso9660_primary_volume_descriptor *primary_voldesc; //!< Full Primary Volume Descriptor
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| 176 | };
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| 177 |
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| 178 | /**
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| 179 | * ISO9660: Dnode structure with ISO9660-specific data.
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| 180 | */
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| 181 |
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| 182 | struct fsw_iso9660_dnode {
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| 183 | struct fsw_dnode g; //!< Generic dnode structure
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| 184 |
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| 185 | struct iso9660_dirrec dirrec; //!< Fixed part of the directory record (i.e. w/o name)
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| 186 | };
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| 187 |
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| 188 |
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| 189 | struct fsw_rock_ridge_susp_entry
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| 190 | {
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| 191 | fsw_u8 sig[2];
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| 192 | fsw_u8 len;
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| 193 | fsw_u8 ver;
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| 194 | };
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| 195 |
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| 196 | struct fsw_rock_ridge_susp_sp
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| 197 | {
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| 198 | struct fsw_rock_ridge_susp_entry e;
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| 199 | fsw_u8 magic[2];
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| 200 | fsw_u8 skip;
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| 201 | };
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| 202 |
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| 203 | struct fsw_rock_ridge_susp_nm
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| 204 | {
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| 205 | struct fsw_rock_ridge_susp_entry e;
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| 206 | fsw_u8 flags;
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| 207 | fsw_u8 name[1];
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| 208 | };
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| 209 |
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| 210 | #define RR_NM_CONT (1<<0)
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| 211 | #define RR_NM_CURR (1<<1)
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| 212 | #define RR_NM_PARE (1<<2)
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| 213 |
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| 214 | union fsw_rock_ridge_susp_ce
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| 215 | {
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| 216 | struct X{
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| 217 | struct fsw_rock_ridge_susp_entry e;
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| 218 | iso9660_u32 block_loc;
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| 219 | iso9660_u32 offset;
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| 220 | iso9660_u32 len;
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| 221 | } X;
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| 222 | fsw_u8 raw[28];
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| 223 | };
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| 224 |
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| 225 | #endif
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