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/** @file
* IPRT - ISO 9660 file system handling.
*/
/*
* Copyright (C) 2010-2012 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE 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.
*/
#ifndef ___iprt_isofs_h
#define ___iprt_isofs_h
#include <iprt/types.h>
#include <iprt/list.h>
RT_C_DECLS_BEGIN
/** @defgroup grp_rt_isofs RTIsoFs - ISO 9660 Filesystem
* @ingroup grp_rt
* @{
*/
#define RTISOFS_MAX_SYSTEM_ID 32
#define RTISOFS_MAX_VOLUME_ID 32
#define RTISOFS_MAX_PUBLISHER_ID 128
#define RTISOFS_MAX_VOLUME_ID 32
#define RTISOFS_MAX_VOLUMESET_ID 128
#define RTISOFS_MAX_PREPARER_ID 128
#define RTISOFS_MAX_APPLICATION_ID 128
#define RTISOFS_MAX_STRING_LEN 255
/** Standard ID of volume descriptors. */
#define RTISOFS_STANDARD_ID "CD001"
/** Default sector size. */
#define RTISOFS_SECTOR_SIZE 2048
#pragma pack(1)
typedef struct RTISOFSDATESHORT
{
uint8_t year;
uint8_t month;
uint8_t day;
uint8_t hour;
uint8_t minute;
uint8_t second;
int8_t gmt_offset;
} RTISOFSDATESHORT, *PRTISOFSDATESHORT;
typedef struct RTISOFSDATELONG
{
char year[4];
char month[2];
char day[2];
char hour[2];
char minute[2];
char second[2];
char hseconds[2];
int8_t gmt_offset;
} RTISOFSDATELONG, *PRTISOFSDATELONG;
/* Directory Record. */
typedef struct RTISOFSDIRRECORD
{
uint8_t record_length;
uint8_t extented_attr_length;
uint32_t extent_location;
uint32_t extent_location_big;
uint32_t extent_data_length; /* Number of bytes (file) / len (directory). */
uint32_t extent_data_length_big;
RTISOFSDATESHORT date;
uint8_t flags;
uint8_t interleave_unit_size;
uint8_t interleave_gap_size;
uint16_t volume_sequence_number;
uint16_t volume_sequence_number_big;
uint8_t name_len;
/* Starting here there will be the actual directory entry name
* and a padding of 1 byte if name_len is odd. */
} RTISOFSDIRRECORD, *PRTISOFSDIRRECORD;
/* Primary Volume Descriptor. */
typedef struct RTISOFSPRIVOLDESC
{
uint8_t type;
char name_id[6];
uint8_t version;
char system_id[RTISOFS_MAX_SYSTEM_ID];
char volume_id[RTISOFS_MAX_VOLUME_ID];
uint8_t unused2[8];
uint32_t volume_space_size; /* Number of sectors, Little Endian. */
uint32_t volume_space_size_big; /* Number of sectors Big Endian. */
uint8_t unused3[32];
uint16_t volume_set_size;
uint16_t volume_set_size_big;
uint16_t volume_sequence_number;
uint16_t volume_sequence_number_big;
uint16_t logical_block_size; /* 2048. */
uint16_t logical_block_size_big;
uint32_t path_table_size; /* Size in bytes. */
uint32_t path_table_size_big; /* Size in bytes. */
uint32_t path_table_start_first;
uint32_t path_table_start_second;
uint32_t path_table_start_first_big;
uint32_t path_table_start_second_big;
RTISOFSDIRRECORD root_directory_record;
uint8_t directory_padding;
char volume_set_id[RTISOFS_MAX_VOLUMESET_ID];
char publisher_id[RTISOFS_MAX_PUBLISHER_ID];
char preparer_id[RTISOFS_MAX_PREPARER_ID];
char application_id[RTISOFS_MAX_APPLICATION_ID];
char copyright_file_id[37];
char abstract_file_id[37];
char bibliographic_file_id[37];
RTISOFSDATELONG creation_date;
RTISOFSDATELONG modification_date;
RTISOFSDATELONG expiration_date;
RTISOFSDATELONG effective_date;
uint8_t file_structure_version;
uint8_t unused4[1];
char application_data[512];
uint8_t unused5[653];
} RTISOFSPRIVOLDESC, *PRTISOFSPRIVOLDESC;
typedef struct RTISOFSPATHTABLEHEADER
{
uint8_t length;
uint8_t extended_attr_sectors;
/** Sector of starting directory table. */
uint32_t sector_dir_table;
/** Index of parent directory (1 for the root). */
uint16_t parent_index;
/* Starting here there will be the name of the directory,
* specified by length above. */
} RTISOFSPATHTABLEHEADER, *PRTISOFSPATHTABLEHEADER;
typedef struct RTISOFSPATHTABLEENTRY
{
char *path;
char *path_full;
RTISOFSPATHTABLEHEADER header;
RTLISTNODE Node;
} RTISOFSPATHTABLEENTRY, *PRTISOFSPATHTABLEENTRY;
typedef struct RTISOFSFILE
{
RTFILE file;
RTLISTANCHOR listPaths;
RTISOFSPRIVOLDESC pvd;
} RTISOFSFILE, *PRTISOFSFILE;
#pragma pack()
#ifdef IN_RING3
/**
* Opens an ISO file.
*
* The following limitations apply:
* - Fixed sector size (2048 bytes).
* - No extensions (Joliet, RockRidge etc.) support (yet).
* - Only primary volume descriptor (PVD) handled.
*
* @return IPRT status code.
* @param pFile Pointer to ISO handle.
* @param pszFileName Path to ISO file to open.
*/
RTR3DECL(int) RTIsoFsOpen(PRTISOFSFILE pFile, const char *pszFileName);
/**
* Closes an ISO file.
*
* @param pFile Pointer to open ISO file returned by RTIsoFsOpen().
*/
RTR3DECL(void) RTIsoFsClose(PRTISOFSFILE pFile);
/**
* Retrieves the offset + length (both in bytes) of a given file
* stored in the ISO.
* @note According to the standard, a file cannot be larger than 2^32-1 bytes.
* Therefore using size_t / uint32_t is not a problem.
*
* @return IPRT status code.
* @param pFile Pointer to open ISO file returned by RTIsoFsOpen().
* @param pszPath Path of file within the ISO to retrieve information for.
* @param pcbOffset Pointer to store the file's absolute offset within the ISO.
* @param pcbLength Pointer to store the file's size.
*/
RTR3DECL(int) RTIsoFsGetFileInfo(PRTISOFSFILE pFile, const char *pszPath,
uint32_t *pcbOffset, size_t *pcbLength);
/**
* Extracts a file from an ISO to the given destination.
*
* @return IPRT status code.
* @param pFile Pointer to open ISO file returned by RTIsoFsOpen().
* @param pszPath Path of file within the ISO to extract.
* @param pszDest Where to store the extracted file.
*/
RTR3DECL(int) RTIsoFsExtractFile(PRTISOFSFILE pFile, const char *pszSource,
const char *pszDest);
#endif /* IN_RING3 */
/** @} */
RT_C_DECLS_END
#endif
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