334 lines
10 KiB
C
334 lines
10 KiB
C
/* $NetBSD: cd9660.h,v 1.21 2015/12/24 15:52:37 christos Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-NetBSD
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*
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* Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
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* Perez-Rathke and Ram Vedam. All rights reserved.
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*
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* This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
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* Alan Perez-Rathke and Ram Vedam.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
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* GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
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* GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MAKEFS_CD9660_H
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#define _MAKEFS_CD9660_H
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#include <inttypes.h>
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <time.h>
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#include <limits.h>
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#include <sys/queue.h>
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#include <sys/param.h>
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#include <sys/endian.h>
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#include "makefs.h"
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#include "iso.h"
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#include "iso_rrip.h"
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#include "cd9660/cd9660_eltorito.h"
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#ifdef DEBUG
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#define INODE_WARNX(__x) warnx __x
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#else /* DEBUG */
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#define INODE_WARNX(__x)
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#endif /* DEBUG */
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/******** STRUCTURES **********/
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#define ISO_VOLUME_DESCRIPTOR_STANDARD_ID "CD001"
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#define ISO_VOLUME_DESCRIPTOR_BOOT 0
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#define ISO_VOLUME_DESCRIPTOR_PVD 1
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#define ISO_VOLUME_DESCRIPTOR_TERMINATOR 255
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/*30 for name and extension, as well as version number and padding bit*/
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#define ISO_FILENAME_MAXLENGTH_BEFORE_VERSION 30
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#define ISO_FILENAME_MAXLENGTH 36
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#define ISO_FILENAME_MAXLENGTH_WITH_PADDING 37
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#define ISO_FLAG_CLEAR 0x00
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#define ISO_FLAG_HIDDEN 0x01
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#define ISO_FLAG_DIRECTORY 0x02
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#define ISO_FLAG_ASSOCIATED 0x04
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#define ISO_FLAG_PERMISSIONS 0x08
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#define ISO_FLAG_RESERVED5 0x10
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#define ISO_FLAG_RESERVED6 0x20
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#define ISO_FLAG_FINAL_RECORD 0x40
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#define ISO_PATHTABLE_ENTRY_BASESIZE 8
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#define ISO_RRIP_DEFAULT_MOVE_DIR_NAME "RR_MOVED"
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#define RRIP_DEFAULT_MOVE_DIR_NAME ".rr_moved"
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#define CD9660_BLOCKS(__sector_size, __bytes) \
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howmany((__bytes), (__sector_size))
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#define CD9660_MEM_ALLOC_ERROR(_F) \
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err(EXIT_FAILURE, "%s, %s l. %d", _F, __FILE__, __LINE__)
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#define CD9660_TYPE_FILE 0x01
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#define CD9660_TYPE_DIR 0x02
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#define CD9660_TYPE_DOT 0x04
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#define CD9660_TYPE_DOTDOT 0x08
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#define CD9660_TYPE_VIRTUAL 0x80
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#define CD9660_INODE_HASH_SIZE 1024
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#define CD9660_SECTOR_SIZE 2048
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#define CD9660_END_PADDING 150
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/* Slight modification of the ISO structure in iso.h */
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typedef struct _iso_directory_record_cd9660 {
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u_char length [ISODCL (1, 1)]; /* 711 */
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u_char ext_attr_length [ISODCL (2, 2)]; /* 711 */
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u_char extent [ISODCL (3, 10)]; /* 733 */
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u_char size [ISODCL (11, 18)]; /* 733 */
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u_char date [ISODCL (19, 25)]; /* 7 by 711 */
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u_char flags [ISODCL (26, 26)];
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u_char file_unit_size [ISODCL (27, 27)]; /* 711 */
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u_char interleave [ISODCL (28, 28)]; /* 711 */
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u_char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
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u_char name_len [ISODCL (33, 33)]; /* 711 */
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char name [ISO_FILENAME_MAXLENGTH_WITH_PADDING];
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} iso_directory_record_cd9660;
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/* TODO: Lots of optimization of this structure */
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typedef struct _cd9660node {
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u_char type;/* Used internally */
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/* Tree structure */
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struct _cd9660node *parent; /* parent (NULL if root) */
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TAILQ_HEAD(cd9660_children_head, _cd9660node) cn_children;
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TAILQ_ENTRY(_cd9660node) cn_next_child;
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struct _cd9660node *dot_record; /* For directories, used mainly in RRIP */
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struct _cd9660node *dot_dot_record;
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fsnode *node; /* pointer to fsnode */
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struct _iso_directory_record_cd9660 *isoDirRecord;
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struct iso_extended_attributes *isoExtAttributes;
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/***** SIZE CALCULATION *****/
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/*already stored in isoDirRecord, but this is an int version, and will be
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copied to isoDirRecord on writing*/
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uint32_t fileDataSector;
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/*
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* same thing, though some notes:
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* If a file, this is the file size
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* If a directory, this is the size of all its children's
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* directory records
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* plus necessary padding
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*/
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int64_t fileDataLength;
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int64_t fileSectorsUsed;
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int fileRecordSize;/*copy of a variable, int for quicker calculations*/
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/* Old name, used for renaming - needs to be optimized but low priority */
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char o_name [ISO_FILENAME_MAXLENGTH_WITH_PADDING];
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/***** SPACE RESERVED FOR EXTENSIONS *****/
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/* For memory efficiency's sake - we should move this to a separate struct
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and point to null if not needed */
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/* For Rock Ridge */
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struct _cd9660node *rr_real_parent, *rr_relocated;
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int64_t susp_entry_size;
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int64_t susp_dot_entry_size;
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int64_t susp_dot_dot_entry_size;
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/* Continuation area stuff */
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int64_t susp_entry_ce_start;
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int64_t susp_dot_ce_start;
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int64_t susp_dot_dot_ce_start;
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int64_t susp_entry_ce_length;
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int64_t susp_dot_ce_length;
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int64_t susp_dot_dot_ce_length;
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/* Data to put at the end of the System Use field */
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int64_t su_tail_size;
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char *su_tail_data;
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/*** PATH TABLE STUFF ***/
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int level; /*depth*/
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int ptnumber;
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struct _cd9660node *ptnext, *ptprev, *ptlast;
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/* SUSP entries */
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TAILQ_HEAD(susp_linked_list, ISO_SUSP_ATTRIBUTES) head;
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} cd9660node;
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typedef struct _path_table_entry
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{
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u_char length[ISODCL (1, 1)];
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u_char extended_attribute_length[ISODCL (2, 2)];
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u_char first_sector[ISODCL (3, 6)];
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u_char parent_number[ISODCL (7, 8)];
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char name[ISO_FILENAME_MAXLENGTH_WITH_PADDING];
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} path_table_entry;
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typedef struct _volume_descriptor
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{
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u_char *volumeDescriptorData; /*ALWAYS 2048 bytes long*/
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int64_t sector;
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struct _volume_descriptor *next;
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} volume_descriptor;
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typedef struct _iso9660_disk {
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int sectorSize;
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struct iso_primary_descriptor primaryDescriptor;
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struct iso_supplementary_descriptor supplementaryDescriptor;
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volume_descriptor *firstVolumeDescriptor;
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cd9660node *rootNode;
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/* Important sector numbers here */
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/* primaryDescriptor.type_l_path_table*/
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int64_t primaryBigEndianTableSector;
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/* primaryDescriptor.type_m_path_table*/
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int64_t primaryLittleEndianTableSector;
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/* primaryDescriptor.opt_type_l_path_table*/
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int64_t secondaryBigEndianTableSector;
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/* primaryDescriptor.opt_type_m_path_table*/
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int64_t secondaryLittleEndianTableSector;
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/* primaryDescriptor.path_table_size*/
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int pathTableLength;
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int64_t dataFirstSector;
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int64_t totalSectors;
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/* OPTIONS GO HERE */
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int isoLevel;
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int include_padding_areas;
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int follow_sym_links;
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int verbose_level;
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int displayHelp;
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int keep_bad_images;
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/* SUSP options and variables */
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int64_t susp_continuation_area_start_sector;
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int64_t susp_continuation_area_size;
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int64_t susp_continuation_area_current_free;
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int rock_ridge_enabled;
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/* Other Rock Ridge Variables */
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char *rock_ridge_renamed_dir_name;
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int rock_ridge_move_count;
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cd9660node *rr_moved_dir;
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int archimedes_enabled;
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int chrp_boot;
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/* Spec breaking options */
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u_char allow_deep_trees;
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u_char allow_start_dot;
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u_char allow_max_name; /* Allow 37 char filenames*/
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u_char allow_illegal_chars; /* ~, !, # */
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u_char allow_lowercase;
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u_char allow_multidot;
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u_char omit_trailing_period;
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/* BOOT INFORMATION HERE */
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int has_generic_bootimage; /* Default to 0 */
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char *generic_bootimage;
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int is_bootable;/* Default to 0 */
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int64_t boot_catalog_sector;
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boot_volume_descriptor *boot_descriptor;
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char * boot_image_directory;
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TAILQ_HEAD(boot_image_list,cd9660_boot_image) boot_images;
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int image_serialno;
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LIST_HEAD(boot_catalog_entries,boot_catalog_entry) boot_entries;
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} iso9660_disk;
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/************ FUNCTIONS **************/
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int cd9660_valid_a_chars(const char *);
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int cd9660_valid_d_chars(const char *);
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void cd9660_uppercase_characters(char *, size_t);
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/* ISO Data Types */
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void cd9660_721(uint16_t, unsigned char *);
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void cd9660_731(uint32_t, unsigned char *);
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void cd9660_722(uint16_t, unsigned char *);
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void cd9660_732(uint32_t, unsigned char *);
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void cd9660_bothendian_dword(uint32_t dw, unsigned char *);
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void cd9660_bothendian_word(uint16_t dw, unsigned char *);
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void cd9660_set_date(char *, time_t);
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void cd9660_time_8426(unsigned char *, time_t);
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void cd9660_time_915(unsigned char *, time_t);
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/*** Boot Functions ***/
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int cd9660_write_generic_bootimage(FILE *);
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int cd9660_write_boot(iso9660_disk *, FILE *);
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int cd9660_add_boot_disk(iso9660_disk *, const char *);
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int cd9660_eltorito_add_boot_option(iso9660_disk *, const char *,
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const char *);
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int cd9660_setup_boot(iso9660_disk *, int);
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int cd9660_setup_boot_volume_descriptor(iso9660_disk *,
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volume_descriptor *);
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/*** Write Functions ***/
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int cd9660_write_image(iso9660_disk *, const char *image);
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int cd9660_copy_file(iso9660_disk *, FILE *, off_t, const char *);
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void cd9660_compute_full_filename(cd9660node *, char *);
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int cd9660_compute_record_size(iso9660_disk *, cd9660node *);
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/* Debugging functions */
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void debug_print_tree(iso9660_disk *, cd9660node *,int);
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void debug_print_path_tree(cd9660node *);
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void debug_print_volume_descriptor_information(iso9660_disk *);
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void debug_dump_to_xml_ptentry(path_table_entry *,int, int);
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void debug_dump_to_xml_path_table(FILE *, off_t, int, int);
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void debug_dump_to_xml(FILE *);
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int debug_get_encoded_number(const unsigned char *, int);
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void debug_dump_integer(const char *, const unsigned char *, int);
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void debug_dump_string(const char *, const unsigned char *, int);
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void debug_dump_directory_record_9_1(unsigned char *);
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void debug_dump_to_xml_volume_descriptor(unsigned char *,int);
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void cd9660_pad_string_spaces(char *, int);
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#endif
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