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libisofs/libisofs/ecma119.h
Thomas Schmitt c47167058a Improved handling of cylinder alignment if the resulting image size 
size is not divisible by 2048. Old behavior was to not align. New is
to pad up by a few blocks of 512 bytes.
2015-05-10 09:34:45 +02:00

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/*
* Copyright (c) 2007 Vreixo Formoso
* Copyright (c) 2009 - 2015 Thomas Schmitt
*
* This file is part of the libisofs project; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* or later as published by the Free Software Foundation.
* See COPYING file for details.
*/
#ifndef LIBISO_ECMA119_H_
#define LIBISO_ECMA119_H_
#include "libisofs.h"
#include "util.h"
#include "buffer.h"
#ifdef HAVE_STDINT_H
#include <stdint.h>
#else
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#endif
#include <pthread.h>
#define BLOCK_SIZE 2048
/*
* Maximum file section size. Set to 4GB - 1 = 0xffffffff
*/
#define MAX_ISO_FILE_SECTION_SIZE 0xffffffff
/*
* When a file need to be splitted in several sections, the maximum size
* of such sections, but the last one. Set to a multiple of BLOCK_SIZE.
* Default to 4GB - 2048 = 0xFFFFF800
*/
#define ISO_EXTENT_SIZE 0xFFFFF800
/*
* The maximum number of partition images that can be registered. Depending
* on the system area type, the effectively usable number may be smaller or
* even 0.
*/
#define ISO_MAX_PARTITIONS 8
/*
* The cylindersize with SUN Disk Label
* (512 bytes/sector, 640 sectors/head, 1 head/cyl = 320 KiB).
* Expressed in ECMA-119 blocks of 2048 bytes/block.
*/
#define ISO_SUN_CYL_SIZE 160
/*
* Maximum length of a disc label text plus 1.
*/
#define ISO_DISC_LABEL_SIZE 129
/* The maximum lenght of an specs violating ECMA-119 file identifier.
The theoretical limit is 254 - 34 - 28 (len of SUSP CE entry) = 192
Currently the practical limit is 254 - 34 - 96 (non-CE RR entries) - 28 (CE)
*/
#ifdef Libisofs_with_rrip_rR
#define ISO_UNTRANSLATED_NAMES_MAX 92
#else
#define ISO_UNTRANSLATED_NAMES_MAX 96
#endif
/* The theoretical maximum number of Apple Partition Map entries in the
System Area of an ISO image:
Block0 plus 63 entries with block size 512
*/
#define ISO_APM_ENTRIES_MAX 63
/* The maximum number of MBR partition table entries.
*/
#define ISO_MBR_ENTRIES_MAX 4
/* The theoretical maximum number of GPT entries in the System Area of an
ISO image:
MBR plus GPT header block plus 248 GPT entries of 128 bytes each.
*/
#define ISO_GPT_ENTRIES_MAX 248
/* How many warnings to issue about writing Joliet names which cannot be
properly represented in UCS-2 and thus had to be defaultet to '_'.
*/
#define ISO_JOLIET_UCS2_WARN_MAX 3
/**
* Holds the options for the image generation.
*/
struct iso_write_opts {
int will_cancel;
int iso_level; /**< ISO level to write at. (ECMA-119, 10) */
/** Which extensions to support. */
unsigned int rockridge :1;
unsigned int joliet :1;
unsigned int iso1999 :1;
unsigned int hfsplus :1;
unsigned int fat :1;
unsigned int aaip :1; /* whether to write eventual ACL and EAs */
/* allways write timestamps in GMT */
unsigned int always_gmt :1;
/*
* Relaxed constraints. Setting any of these to 1 break the specifications,
* but it is supposed to work on most moderns systems. Use with caution.
*/
/**
* Convert directory names for ECMA-119 the same way as other file names
* but do not force dots or add version numbers.
* This violates ECMA-119 by allowing one "." and especially ISO level 1
* by allowing DOS style 8.3 names rather than only 8 characters.
*/
unsigned int allow_dir_id_ext :1;
/**
* Omit the version number (";1") at the end of the ISO-9660 identifiers.
* Version numbers are usually not used.
* bit0= ECMA-119 and Joliet (for historical reasons)
* bit1= Joliet
*/
unsigned int omit_version_numbers :2;
/**
* Allow ISO-9660 directory hierarchy to be deeper than 8 levels.
*/
unsigned int allow_deep_paths :1;
/**
* Allow path in the ISO-9660 tree to have more than 255 characters.
*/
unsigned int allow_longer_paths :1;
/**
* Allow a single file or directory hierarchy to have up to 37 characters.
* This is larger than the 31 characters allowed by ISO level 2, and the
* extra space is taken from the version number, so this also forces
* omit_version_numbers.
*/
unsigned int max_37_char_filenames :1;
/**
* ISO-9660 forces filenames to have a ".", that separates file name from
* extension. libisofs adds it if original filename doesn't has one. Set
* this to 1 to prevent this behavior
* bit0= ECMA-119
* bit1= Joliet
*/
unsigned int no_force_dots :2;
/**
* Allow lowercase characters in ISO-9660 filenames. By default, only
* uppercase characters, numbers and a few other characters are allowed.
*/
unsigned int allow_lowercase :1;
/**
* Allow all ASCII characters to be appear on an ISO-9660 filename. Note
* that "/" and "\0" characters are never allowed, even in RR names.
*/
unsigned int allow_full_ascii :1;
/**
* If not allow_full_ascii is set: allow all 7 bit characters that would
* be allowed by allow_full_ascii. But still map lowercase to uppercase if
* not allow_lowercase is set to 1.
*/
unsigned int allow_7bit_ascii :1;
/**
* Allow all characters to be part of Volume and Volset identifiers on
* the Primary Volume Descriptor. This breaks ISO-9660 contraints, but
* should work on modern systems.
*/
unsigned int relaxed_vol_atts :1;
/**
* Allow paths in the Joliet tree to have more than 240 characters.
*/
unsigned int joliet_longer_paths :1;
/**
* Allow Joliet names up to 103 characters rather than 64.
*/
unsigned int joliet_long_names :1;
/**
* Use UTF-16BE rather than its subset UCS-2
*/
unsigned int joliet_utf16 :1;
/**
* Write Rock Ridge info as of specification RRIP-1.10 rather than
* RRIP-1.12: signature "RRIP_1991A" rather than "IEEE_1282",
* field PX without file serial number
*/
unsigned int rrip_version_1_10 :1;
/**
* Write field PX with file serial number even with RRIP-1.10
*/
unsigned int rrip_1_10_px_ino :1;
/**
* See iso_write_opts_set_hardlinks()
*/
unsigned int hardlinks:1;
/**
* Write AAIP as extension according to SUSP 1.10 rather than SUSP 1.12.
* I.e. without announcing it by an ER field and thus without the need
* to preceed the RRIP fields by an ES and to preceed the AA field by ES.
* This saves bytes and might avoid problems with readers which dislike
* ER fields other than the ones for RRIP.
* On the other hand, SUSP 1.12 frowns on such unannounced extensions
* and prescribes ER and ES. It does this since year 1994.
*
* In effect only if above flag .aaip is set to 1.
*/
unsigned int aaip_susp_1_10 :1;
/**
* Store as ECMA-119 Directory Record timestamp the mtime of the source
* rather than the image creation time. (The ECMA-119 prescription seems
* to expect that we do have a creation timestamp with the source.
* mkisofs writes mtimes and the result seems more suitable if mounted
* without Rock Ridge support.)
* bit0= ECMA-119, bit1= Joliet, bit2= ISO 9660:1999
*/
unsigned int dir_rec_mtime :3;
/**
* This describes the directory where to store Rock Ridge relocated
* directories.
* If not relaxation "allow_deep_paths" is in effect, it is necessary to
* relocate directories so that no ECMA-119 file path has more than
* 8 components. For Rock Ridge the relocated directories are linked forth
* and back to a placeholder at their original position in path level 8
* (entries CL and PL). Directories marked by entry RE are to be considered
* artefacts of relocation and shall not be read into a Rock Ridge tree.
* For plain ECMA-119, the relocation directory is just a normal directory
* which contains normal files and directories.
*/
char *rr_reloc_dir; /* IsoNode name in root directory */
int rr_reloc_flags; /* bit0= mark auto-created rr_reloc_dir by RE
bit1= directory was auto-created
(cannot be set via API)
*/
/**
* Compute MD5 checksum for the whole session and record it as index 0 of
* the checksum blocks after the data area of the session. The layout and
* position of these blocks will be recorded in xattr "isofs.ca" of the
* root node. See see also API call iso_image_get_session_md5().
*/
unsigned int md5_session_checksum :1;
/**
* Compute MD5 checksums for IsoFile objects and write them to blocks
* after the data area of the session. The layout and position of these
* blocks will be recorded in xattr "isofs.ca" of the root node.
* The indice of the MD5 sums will be recorded with the IsoFile directory
* entries as xattr "isofs.cx". See also API call iso_file_get_md5().
* bit0= compute individual checksums
* bit1= pre-compute checksum and compare it with actual one.
* Raise MISHAP if mismatch.
*/
unsigned int md5_file_checksums :2;
/** If files should be sorted based on their weight. */
unsigned int sort_files :1;
/**
* The following options set the default values for files and directory
* permissions, gid and uid. All these take one of three values: 0, 1 or 2.
* If 0, the corresponding attribute will be kept as setted in the IsoNode.
* Unless you have changed it, it corresponds to the value on disc, so it
* is suitable for backup purposes. If set to 1, the corresponding attrib.
* will be changed by a default suitable value. Finally, if you set it to
* 2, the attrib. will be changed with the value specified in the options
* below. Note that for mode attributes, only the permissions are set, the
* file type remains unchanged.
*/
unsigned int replace_dir_mode :2;
unsigned int replace_file_mode :2;
unsigned int replace_uid :2;
unsigned int replace_gid :2;
mode_t dir_mode; /** Mode to use on dirs when replace_dir_mode == 2. */
mode_t file_mode; /** Mode to use on files when replace_file_mode == 2. */
uid_t uid; /** uid to use when replace_uid == 2. */
gid_t gid; /** gid to use when replace_gid == 2. */
/**
* See API call iso_write_opts_set_old_empty().
*/
unsigned int old_empty :1;
/**
* Extra Caution: This option breaks any assumptions about names that
* are supported by ECMA-119 specifications.
* Omit any translation which would make a file name compliant to the
* ECMA-119 rules. This includes and exceeds omit_version_numbers,
* max_37_char_filenames, no_force_dots bit0, allow_lowercase.
* The maximum name length is given by this variable.
* There is a length limit of ISO_UNTRANSLATED_NAMES_MAX characters,
* because ECMA-119 allows 254 byte in a directory record, some
* of them are occupied by ECMA-119, some more are needed for SUSP CE,
* and some are fixely occupied by libisofs Rock Ridge code.
* The default value 0 disables this feature.
*/
unsigned int untranslated_name_len;
/**
* 0 to use IsoNode timestamps, 1 to use recording time, 2 to use
* values from timestamp field. This has only meaning if RR extensions
* are enabled.
*/
unsigned int replace_timestamps :2;
time_t timestamp;
/**
* Charset for the RR filenames that will be created.
* NULL to use default charset, the locale one.
*/
char *output_charset;
/**
* This flags control the type of the image to create. Libisofs support
* two kind of images: stand-alone and appendable.
*
* A stand-alone image is an image that is valid alone, and that can be
* mounted by its own. This is the kind of image you will want to create
* in most cases. A stand-alone image can be burned in an empty CD or DVD,
* or write to an .iso file for future burning or distribution.
*
* On the other side, an appendable image is not self contained, it refers
* to serveral files that are stored outside the image. Its usage is for
* multisession discs, where you add data in a new session, while the
* previous session data can still be accessed. In those cases, the old
* data is not written again. Instead, the new image refers to it, and thus
* it's only valid when appended to the original. Note that in those cases
* the image will be written after the original, and thus you will want
* to use a ms_block greater than 0.
*
* Note that if you haven't import a previous image (by means of
* iso_image_import()), the image will always be a stand-alone image, as
* there is no previous data to refer to.
*/
unsigned int appendable : 1;
/**
* Start block of the image. It is supposed to be the lba where the first
* block of the image will be written on disc. All references inside the
* ISO image will take this into account, thus providing a mountable image.
*
* For appendable images, that are written to a new session, you should
* pass here the lba of the next writable address on disc.
*
* In stand alone images this is usually 0. However, you may want to
* provide a different ms_block if you don't plan to burn the image in the
* first session on disc, such as in some CD-Extra disc whether the data
* image is written in a new session after some audio tracks.
*/
uint32_t ms_block;
/**
* When not NULL, it should point to a buffer of at least 64KiB, where
* libisofs will write the contents that should be written at the beginning
* of a overwriteable media, to grow the image. The growing of an image is
* a way, used by first time in growisofs by Andy Polyakov, to allow the
* appending of new data to non-multisession media, such as DVD+RW, in the
* same way you append a new session to a multisession disc, i.e., without
* need to write again the contents of the previous image.
*
* Note that if you want this kind of image growing, you will also need to
* set appendable to "1" and provide a valid ms_block after the previous
* image.
*
* You should initialize the buffer either with 0s, or with the contents of
* the first blocks of the image you're growing. In most cases, 0 is good
* enought.
*/
uint8_t *overwrite;
/**
* Size, in number of blocks, of the FIFO buffer used between the writer
* thread and the burn_source. You have to provide at least a 32 blocks
* buffer.
*/
size_t fifo_size;
/**
* This is not an option setting but a value returned after the options
* were used to compute the layout of the image.
* It tells the LBA of the first plain file data block in the image.
*/
uint32_t data_start_lba;
/**
* If not empty: A text holding parameters "name" and "timestamp" for
* a scdbackup stream checksum tag. See scdbackup/README appendix VERIFY.
* It makes sense only for single session images which start at LBA 0.
* Such a tag may be part of a libisofs checksum tag block after the
* session tag line. It then covers the whole session up to its own start
* position.
*/
char scdbackup_tag_parm[100];
/* If not NULL: A pointer to an application provided array with
at least 512 characters. The effectively written scdbackup tag
will be copied to this memory location.
*/
char *scdbackup_tag_written;
/*
* See ecma119_image : System Area related information
*/
char *system_area_data;
int system_area_size;
int system_area_options;
/* User settable PVD time stamps */
time_t vol_creation_time;
time_t vol_modification_time;
time_t vol_expiration_time;
time_t vol_effective_time;
/* To eventually override vol_creation_time and vol_modification_time
* by unconverted string with timezone 0
*/
char vol_uuid[17];
/* The number of unclaimed 2K blocks before start of partition 1 as of
the MBR in system area.
Must be 0 or >= 16. (Actually >= number of voldescr + checksum tag)
*/
uint32_t partition_offset;
/* Partition table parameter: 1 to 63, 0= disabled/default */
int partition_secs_per_head;
/* 1 to 255, 0= disabled/default */
int partition_heads_per_cyl;
#ifdef Libisofs_with_libjtE
/* Parameters and state of Jigdo Template Export environment.
*/
struct libjte_env *libjte_handle;
#endif /* Libisofs_with_libjtE */
/* A trailing padding of zero bytes which belongs to the image
*/
uint32_t tail_blocks;
/* Eventual disk file path of a PreP partition which shall be prepended
to HFS+/FAT and IsoFileSrc areas and marked by an MBR partition entry.
*/
char *prep_partition;
int prep_part_flag;
/* Eventual disk file path of an EFI system partition image which shall
be prepended to HFS+/FAT and IsoFileSrc areas and marked by a GPT entry.
*/
char *efi_boot_partition;
int efi_boot_part_flag;
/* Eventual disk file paths of prepared images which shall be appended
after the ISO image and described by partiton table entries in a MBR
*/
char *appended_partitions[ISO_MAX_PARTITIONS];
uint8_t appended_part_types[ISO_MAX_PARTITIONS];
int appended_part_flags[ISO_MAX_PARTITIONS];
/* If 1: With appended partitions: create protective MBR and mark by GPT
*/
int appended_as_gpt;
/* Eventual name of the non-ISO aspect of the image. E.g. SUN ASCII label.
*/
char ascii_disc_label[ISO_DISC_LABEL_SIZE];
/* HFS+ image serial number.
* 00...00 means that it shall be generated by libisofs.
*/
uint8_t hfsp_serial_number[8];
/* Allocation block size of HFS+ : 0= auto , 512, or 2048
*/
int hfsp_block_size;
/* Block size of and in APM : 0= auto , 512, or 2048
*/
int apm_block_size;
};
typedef struct ecma119_image Ecma119Image;
typedef struct ecma119_node Ecma119Node;
typedef struct joliet_node JolietNode;
typedef struct iso1999_node Iso1999Node;
typedef struct hfsplus_node HFSPlusNode;
typedef struct Iso_File_Src IsoFileSrc;
typedef struct Iso_Image_Writer IsoImageWriter;
struct ecma119_image
{
int refcount;
IsoImage *image;
Ecma119Node *root;
IsoWriteOpts *opts;
/** Whether El Torito data will be produced */
unsigned int eltorito :1;
/* The ECMA-119 directory node where to store Rock Ridge relocated
directories. (Path is in IsoWriteOpts.rr_reloc_dir)
*/
Ecma119Node *rr_reloc_node; /* Directory node in ecma119_image */
/*
* Mode replace. If one of these flags is set, the correspodent values are
* replaced with values below. Both get computed from IsoWriteOpts.
*/
unsigned int replace_uid :1;
unsigned int replace_gid :1;
unsigned int replace_file_mode :1;
unsigned int replace_dir_mode :1;
unsigned int replace_timestamps :1;
/* Mode replacement values. */
uid_t uid;
gid_t gid;
mode_t file_mode;
mode_t dir_mode;
time_t timestamp;
/* Effective charsets */
char *input_charset;
char *output_charset;
time_t now; /**< Time at which writing began. */
/** Total size of the output. This only includes the current volume. */
off_t total_size;
uint32_t vol_space_size;
/* Bytes already written to image output */
off_t bytes_written;
/* just for progress notification */
int percent_written;
/*
* Block being processed, either during image writing or structure
* size calculation.
*/
uint32_t curblock;
/*
* The address to be used for the content pointer of empty data files.
*/
uint32_t empty_file_block;
/*
* The calculated block address after ECMA-119 tree and eventual
* tree checksum tag.
*/
uint32_t tree_end_block;
/*
* number of dirs in ECMA-119 tree, computed together with dir position,
* and needed for path table computation in a efficient way
*/
size_t ndirs;
uint32_t path_table_size;
uint32_t l_path_table_pos;
uint32_t m_path_table_pos;
/*
* Joliet related information
*/
JolietNode *joliet_root;
size_t joliet_ndirs;
uint32_t joliet_path_table_size;
uint32_t joliet_l_path_table_pos;
uint32_t joliet_m_path_table_pos;
size_t joliet_ucs2_failures;
/*
* HFS+ related information
* (by Vladimir Serbinenko, see libisofs/hfsplus.c)
*/
HFSPlusNode *hfsp_leafs;
struct hfsplus_btree_level *hfsp_levels;
uint32_t hfsp_nlevels;
uint32_t hfsp_part_start;
uint32_t hfsp_nfiles;
uint32_t hfsp_ndirs;
uint32_t hfsp_cat_id;
uint32_t hfsp_allocation_blocks;
uint32_t hfsp_allocation_file_start;
uint32_t hfsp_extent_file_start;
uint32_t hfsp_catalog_file_start;
uint32_t hfsp_total_blocks;
uint32_t hfsp_allocation_size;
uint32_t hfsp_nleafs;
uint32_t hfsp_curleaf;
uint32_t hfsp_nnodes;
uint32_t hfsp_bless_id[ISO_HFSPLUS_BLESS_MAX];
uint32_t hfsp_collision_count;
/*
* ISO 9660:1999 related information
*/
Iso1999Node *iso1999_root;
size_t iso1999_ndirs;
uint32_t iso1999_path_table_size;
uint32_t iso1999_l_path_table_pos;
uint32_t iso1999_m_path_table_pos;
/*
* El-Torito related information
*/
struct el_torito_boot_catalog *catalog;
IsoFileSrc *cat; /**< location of the boot catalog in the new image */
int num_bootsrc;
IsoFileSrc **bootsrc; /* location of the boot images in the new image */
/*
* System Area related information
*/
/* Content of an embedded boot image. Valid if not NULL.
* In that case it must point to a memory buffer at least 32 kB.
*/
char *system_area_data;
/*
* bit0= Only with DOS MBR
* Make bytes 446 - 512 of the system area a partition
* table which reserves partition 1 from byte 63*512 to the
* end of the ISO image. Assumed are 63 secs/hed, 255 head/cyl.
* (GRUB protective msdos label.)
* This works with and without system_area_data.
* bit1= Only with DOS MBR
* Apply isohybrid MBR patching to the system area.
* This works only with system_area_data plus ISOLINUX boot image
* and only if not bit0 is set.
* bit2-7= System area type
* 0= DOS MBR
* 1= MIPS Big Endian Volume Header
* 2= DEC Boot Block for MIPS Little Endian
* 3= SUN Disk Label for SUN SPARC
* bit8-9= Only with DOS MBR
* Cylinder alignment mode eventually pads the image to make it
* end at a cylinder boundary.
* 0 = auto (align if bit1)
* 1 = always align to cylinder boundary
* 2 = never align to cylinder boundary
* 3 = always align, additionally pad up and align partitions
* which were appended by iso_write_opts_set_partition_img()
* bit10-13= System area sub type
* With type 0 = MBR:
* Gets overridden by bit0 and bit1.
* 0 = no particular sub type
* 1 = CHRP: A single MBR partition of type 0x96 covers the
* ISO image. Not compatible with any other feature
* which needs to have own MBR partition entries.
*/
int system_area_options;
/*
* Number of pad blocks that we need to write. Padding blocks are blocks
* filled by 0s that we put between the directory structures and the file
* data. These padding blocks are added by libisofs to improve the handling
* of image growing. The idea is that the first blocks in the image are
* overwritten with the volume descriptors of the new image. These first
* blocks usually correspond to the volume descriptors and directory
* structure of the old image, and can be safety overwritten. However,
* with very small images they might correspond to valid data. To ensure
* this never happens, what we do is to add padding bytes, to ensure no
* file data is written in the first 64 KiB, that are the bytes we usually
* overwrite.
*/
uint32_t mspad_blocks;
size_t nwriters;
IsoImageWriter **writers;
/* tree of files sources */
IsoRBTree *files;
unsigned int checksum_idx_counter;
void *checksum_ctx;
off_t checksum_counter;
uint32_t checksum_rlsb_tag_pos;
uint32_t checksum_sb_tag_pos;
uint32_t checksum_tree_tag_pos;
uint32_t checksum_tag_pos;
char image_md5[16];
char *checksum_buffer;
uint32_t checksum_array_pos;
uint32_t checksum_range_start;
uint32_t checksum_range_size;
char *opts_overwrite; /* Points to IsoWriteOpts->overwrite.
Use only underneath ecma119_image_new()
and if not NULL*/
/* Buffer for communication between burn_source and writer thread */
IsoRingBuffer *buffer;
/* writer thread descriptor */
pthread_t wthread;
int wthread_is_running;
pthread_attr_t th_attr;
/* Effective partition table parameter: 1 to 63, 0= disabled/default */
int partition_secs_per_head;
/* 1 to 255, 0= disabled/default */
int partition_heads_per_cyl;
/* The currently applicable LBA offset. To be subtracted from any LBA
* that is mentioned in volume descriptors, trees, path tables,
* Either 0 or .partition_offset
*/
uint32_t eff_partition_offset;
/* The second ECMA-119 directory tree and path tables */
Ecma119Node *partition_root;
uint32_t partition_l_table_pos;
uint32_t partition_m_table_pos;
/* The second Joliet directory tree and path tables */
JolietNode *j_part_root;
uint32_t j_part_l_path_table_pos;
uint32_t j_part_m_path_table_pos;
/* Memorized ELF parameters from MIPS Little Endian boot file */
uint32_t mipsel_e_entry;
uint32_t mipsel_p_offset;
uint32_t mipsel_p_vaddr;
uint32_t mipsel_p_filesz;
/* A data file of which the position and size shall be written after
a SUN Disk Label.
*/
IsoFileSrc *sparc_core_src;
/* Counted in blocks of 2048 */
uint32_t appended_part_prepad[ISO_MAX_PARTITIONS];
uint32_t appended_part_start[ISO_MAX_PARTITIONS];
uint32_t appended_part_size[ISO_MAX_PARTITIONS];
int have_appended_partitions;
/* See IsoImage and libisofs.h */
IsoNode *hfsplus_blessed[ISO_HFSPLUS_BLESS_MAX];
/* Block sizes come from write options.
Only change a block size if it is 0. Set only to 512 or 2048.
If it stays 0 then it will become 512 or 2048 in time.
*/
/* Allocation block size of HFS+
May be defined to 512 or 2048 before hfsplus_writer_create().
*/
int hfsp_cat_node_size; /* 2 * hfsp_block_size */
int hfsp_iso_block_fac; /* 2048 / hfsp_block_size */
/* Apple Partition Map description. To be composed during IsoImageWriter
method ->compute_data_blocks() by calling iso_register_apm_entry().
Make sure that the composing writers get registered before the
gpt_tail_writer.
*/
struct iso_apm_partition_request *apm_req[ISO_APM_ENTRIES_MAX];
int apm_req_count;
/* bit1= Do not fill gaps in Apple Partition Map
bit2= apm_req entries use apm_block_size in start_block and block_count.
Normally these two parameters are counted in 2 KiB blocks.
*/
int apm_req_flags;
/* MBR partition table description. To be composed during IsoImageWriter
method ->compute_data_blocks() by calling iso_register_mbr_entry().
*/
struct iso_mbr_partition_request *mbr_req[ISO_MBR_ENTRIES_MAX];
int mbr_req_count;
/* Number of bytes which have to be added after the cylinder aligned end
of the overall ISO partition because clinder size is not a multiple
of 2048
*/
int post_iso_part_pad;
uint32_t prep_part_size;
/* GPT description. To be composed during IsoImageWriter
method ->compute_data_blocks() by calling iso_register_gpt_entry().
Make sure that the composing writers get registered before the
gpt_tail_writer.
*/
struct iso_gpt_partition_request *gpt_req[ISO_GPT_ENTRIES_MAX];
int gpt_req_count;
/* bit0= GPT partitions may overlap */
int gpt_req_flags;
/* Whether the eventual backup GPT is not part of the ISO filesystem */
int gpt_backup_outside;
uint32_t efi_boot_part_size;
IsoFileSrc *efi_boot_part_filesrc; /* Just a pointer. Do not free. */
/* Messages from gpt_tail_writer_compute_data_blocks() to
iso_write_system_area().
*/
uint8_t gpt_disk_guid[16];
int gpt_disk_guid_set;
/* Start of GPT entries in System Area, block size 512 */
uint32_t gpt_part_start;
/* The ISO block number after the backup GPT header , block size 2048 */
uint32_t gpt_backup_end;
uint32_t gpt_backup_size;
uint32_t gpt_max_entries;
int gpt_is_computed;
/* Message from write_head_part1()/iso_write_system_area() to the
write_data() methods of the writers.
*/
uint8_t sys_area_as_written[16 * BLOCK_SIZE];
int sys_area_already_written;
/* Size of the filesrc_writer area (data file content).
This is available before any IsoImageWriter.compute_data_blocks()
is called.
*/
uint32_t filesrc_start;
uint32_t filesrc_blocks;
};
#define BP(a,b) [(b) - (a) + 1]
/* ECMA-119, 8.4 */
struct ecma119_pri_vol_desc
{
uint8_t vol_desc_type BP(1, 1);
uint8_t std_identifier BP(2, 6);
uint8_t vol_desc_version BP(7, 7);
uint8_t unused1 BP(8, 8);
uint8_t system_id BP(9, 40);
uint8_t volume_id BP(41, 72);
uint8_t unused2 BP(73, 80);
uint8_t vol_space_size BP(81, 88);
uint8_t unused3 BP(89, 120);
uint8_t vol_set_size BP(121, 124);
uint8_t vol_seq_number BP(125, 128);
uint8_t block_size BP(129, 132);
uint8_t path_table_size BP(133, 140);
uint8_t l_path_table_pos BP(141, 144);
uint8_t opt_l_path_table_pos BP(145, 148);
uint8_t m_path_table_pos BP(149, 152);
uint8_t opt_m_path_table_pos BP(153, 156);
uint8_t root_dir_record BP(157, 190);
uint8_t vol_set_id BP(191, 318);
uint8_t publisher_id BP(319, 446);
uint8_t data_prep_id BP(447, 574);
uint8_t application_id BP(575, 702);
uint8_t copyright_file_id BP(703, 739);
uint8_t abstract_file_id BP(740, 776);
uint8_t bibliographic_file_id BP(777, 813);
uint8_t vol_creation_time BP(814, 830);
uint8_t vol_modification_time BP(831, 847);
uint8_t vol_expiration_time BP(848, 864);
uint8_t vol_effective_time BP(865, 881);
uint8_t file_structure_version BP(882, 882);
uint8_t reserved1 BP(883, 883);
uint8_t app_use BP(884, 1395);
uint8_t reserved2 BP(1396, 2048);
};
/* ECMA-119, 8.5 */
struct ecma119_sup_vol_desc
{
uint8_t vol_desc_type BP(1, 1);
uint8_t std_identifier BP(2, 6);
uint8_t vol_desc_version BP(7, 7);
uint8_t vol_flags BP(8, 8);
uint8_t system_id BP(9, 40);
uint8_t volume_id BP(41, 72);
uint8_t unused2 BP(73, 80);
uint8_t vol_space_size BP(81, 88);
uint8_t esc_sequences BP(89, 120);
uint8_t vol_set_size BP(121, 124);
uint8_t vol_seq_number BP(125, 128);
uint8_t block_size BP(129, 132);
uint8_t path_table_size BP(133, 140);
uint8_t l_path_table_pos BP(141, 144);
uint8_t opt_l_path_table_pos BP(145, 148);
uint8_t m_path_table_pos BP(149, 152);
uint8_t opt_m_path_table_pos BP(153, 156);
uint8_t root_dir_record BP(157, 190);
uint8_t vol_set_id BP(191, 318);
uint8_t publisher_id BP(319, 446);
uint8_t data_prep_id BP(447, 574);
uint8_t application_id BP(575, 702);
uint8_t copyright_file_id BP(703, 739);
uint8_t abstract_file_id BP(740, 776);
uint8_t bibliographic_file_id BP(777, 813);
uint8_t vol_creation_time BP(814, 830);
uint8_t vol_modification_time BP(831, 847);
uint8_t vol_expiration_time BP(848, 864);
uint8_t vol_effective_time BP(865, 881);
uint8_t file_structure_version BP(882, 882);
uint8_t reserved1 BP(883, 883);
uint8_t app_use BP(884, 1395);
uint8_t reserved2 BP(1396, 2048);
};
/* ECMA-119, 8.2 */
struct ecma119_boot_rec_vol_desc
{
uint8_t vol_desc_type BP(1, 1);
uint8_t std_identifier BP(2, 6);
uint8_t vol_desc_version BP(7, 7);
uint8_t boot_sys_id BP(8, 39);
uint8_t boot_id BP(40, 71);
uint8_t boot_catalog BP(72, 75);
uint8_t unused BP(76, 2048);
};
/* ECMA-119, 9.1 */
struct ecma119_dir_record
{
uint8_t len_dr BP(1, 1);
uint8_t len_xa BP(2, 2);
uint8_t block BP(3, 10);
uint8_t length BP(11, 18);
uint8_t recording_time BP(19, 25);
uint8_t flags BP(26, 26);
uint8_t file_unit_size BP(27, 27);
uint8_t interleave_gap_size BP(28, 28);
uint8_t vol_seq_number BP(29, 32);
uint8_t len_fi BP(33, 33);
uint8_t file_id BP(34, 34); /* 34 to 33+len_fi */
/* padding field (if len_fi is even) */
/* system use (len_dr - len_su + 1 to len_dr) */
};
/* ECMA-119, 9.4 */
struct ecma119_path_table_record
{
uint8_t len_di BP(1, 1);
uint8_t len_xa BP(2, 2);
uint8_t block BP(3, 6);
uint8_t parent BP(7, 8);
uint8_t dir_id BP(9, 9); /* 9 to 8+len_di */
/* padding field (if len_di is odd) */
};
/* ECMA-119, 8.3 */
struct ecma119_vol_desc_terminator
{
uint8_t vol_desc_type BP(1, 1);
uint8_t std_identifier BP(2, 6);
uint8_t vol_desc_version BP(7, 7);
uint8_t reserved BP(8, 2048);
};
void ecma119_set_voldescr_times(IsoImageWriter *writer,
struct ecma119_pri_vol_desc *vol);
/* Copies a data file into the ISO image output stream */
int iso_write_partition_file(Ecma119Image *target, char *path,
uint32_t prepad, uint32_t blocks, int flag);
void issue_ucs2_warning_summary(size_t failures);
#endif /*LIBISO_ECMA119_H_*/
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