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/*
* libudffs.h
*
* Copyright (c) 2001-2002 Ben Fennema <bfennema@falcon.csc.calpoly.edu>
* Copyright (c) 2014-2017 Pali Rohár <pali.rohar@gmail.com>
* All rights reserved.
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/**
* @file
* libudffs defines and structure definitions
*/
#ifndef __LIBUDFFS_H
#define __LIBUDFFS_H
#include "ecma_167.h"
#include "osta_udf.h"
#include "udf_endian.h"
#define FLAG_FREED_BITMAP 0x00000001
#define FLAG_FREED_TABLE 0x00000002
#define FLAG_UNALLOC_BITMAP 0x00000004
#define FLAG_UNALLOC_TABLE 0x00000008
#define FLAG_SPACE_BITMAP (FLAG_FREED_BITMAP|FLAG_UNALLOC_BITMAP)
#define FLAG_SPACE_TABLE (FLAG_FREED_TABLE|FLAG_UNALLOC_TABLE)
#define FLAG_SPACE (FLAG_SPACE_BITMAP|FLAG_SPACE_TABLE)
#define FLAG_LOCALE 0x00000010
#define FLAG_UNICODE8 0x00000020
#define FLAG_UNICODE16 0x00000040
#define FLAG_UTF8 0x00000080
#define FLAG_CHARSET (FLAG_LOCALE|FLAG_UNICODE8|FLAG_UNICODE16|FLAG_UTF8)
#define FLAG_STRATEGY4096 0x00000100
#define FLAG_BLANK_TERMINAL 0x00000200
#define FLAG_MIN_300_BLOCKS 0x00000400
#define FLAG_CLOSED 0x00000800
#define FLAG_VAT 0x00001000
#define FLAG_EFE 0x00002000
#define FLAG_NO_WRITE 0x00004000
#define FLAG_BOOTAREA_PRESERVE 0x00010000
#define FLAG_BOOTAREA_ERASE 0x00020000
#define FLAG_BOOTAREA_MBR 0x00040000
#define FLAG_BOOTAREA_MASK (FLAG_BOOTAREA_PRESERVE|FLAG_BOOTAREA_ERASE|FLAG_BOOTAREA_MBR)
struct udf_extent;
struct udf_desc;
struct udf_data;
enum udf_space_type
{
RESERVED = 0x0001, /* Reserved Space */
VRS = 0x0002, /* Volume Recognition Sequence */
ANCHOR = 0x0004, /* Anchor */
MVDS = 0x0008, /* Main Volume Descriptor Sequence */
RVDS = 0x0010, /* Reserve Volume Descriptor Sequence */
LVID = 0x0020, /* Logical Volume Integrity Descriptor */
STABLE = 0x0040, /* Sparing Table */
SSPACE = 0x0080, /* Sparing Space */
PSPACE = 0x0100, /* Partition Space */
USPACE = 0x0200, /* Unallocated Space */
BAD = 0x0400, /* Bad Blocks */
MBR = 0x0800, /* MBR Boot Area */
UDF_SPACE_TYPE_SIZE = 12,
};
struct udf_sizing
{
uint32_t align;
uint32_t numSize;
uint32_t denomSize;
uint32_t minSize;
};
enum udf_alloc_type
{
VDS_SIZE,
LVID_SIZE,
STABLE_SIZE,
SSPACE_SIZE,
PSPACE_SIZE,
UDF_ALLOC_TYPE_SIZE,
};
struct udf_disc
{
uint16_t udf_rev;
uint16_t udf_write_rev;
uint32_t blocksize;
uint32_t blocks;
uint32_t flags;
unsigned int blkssz;
uint64_t blksize;
uint32_t num_files;
uint32_t num_dirs;
uint32_t free_space_blocks;
uint32_t total_space_blocks;
uint32_t uid;
uint32_t gid;
uint16_t mode;
struct udf_sizing sizing[UDF_ALLOC_TYPE_SIZE];
int (*write)(struct udf_disc *, struct udf_extent *);
void *write_data;
struct volStructDesc *udf_vrs[3];
struct anchorVolDescPtr *udf_anchor[3];
struct primaryVolDesc *udf_pvd[2];
struct logicalVolDesc *udf_lvd[2];
struct partitionDesc *udf_pd[2];
struct unallocSpaceDesc *udf_usd[2];
struct impUseVolDesc *udf_iuvd[2];
struct terminatingDesc *udf_td[2];
struct logicalVolIntegrityDesc *udf_lvid;
struct sparingTable *udf_stable[4];
uint32_t vat_block;
uint32_t *vat;
uint64_t vat_entries;
struct fileSetDesc *udf_fsd;
struct udf_extent *head;
struct udf_extent *tail;
};
struct udf_extent
{
enum udf_space_type space_type;
uint32_t start;
uint32_t blocks;
struct udf_desc *head;
struct udf_desc *tail;
struct udf_extent *next;
struct udf_extent *prev;
};
struct udf_desc
{
uint16_t ident;
uint32_t offset;
uint64_t length;
struct udf_data *data;
struct udf_desc *next;
struct udf_desc *prev;
};
struct udf_data
{
uint64_t length;
void *buffer;
struct udf_data *next;
struct udf_data *prev;
};
#define MBR_PARTITION_NOT_BOOTABLE 0x00
#define MBR_PARTITION_TYPE_IFS 0x07 /* Installable File System (IFS), see: https://serverfault.com/a/829172 */
struct mbr_partition
{
uint8_t boot_indicator;
uint8_t starting_chs[3];
uint8_t partition_type;
uint8_t ending_chs[3];
uint32_t starting_lba;
uint32_t size_in_lba;
} __attribute__ ((packed));
#define MBR_BOOT_SIGNATURE 0xAA55
struct mbr
{
unsigned char boot_code[440];
uint32_t disk_signature;
uint16_t unknown;
struct mbr_partition partitions[4];
uint16_t boot_signature;
} __attribute__ ((packed));
/* crc.c */
extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
/* extent.c */
struct udf_extent *next_extent(struct udf_extent *, enum udf_space_type);
uint32_t next_extent_size(struct udf_disc *, struct udf_extent *, enum udf_space_type, uint32_t, uint32_t);
uint32_t find_next_extent_size(struct udf_disc *, uint32_t, enum udf_space_type, uint32_t, uint32_t);
struct udf_extent *prev_extent(struct udf_extent *, enum udf_space_type);
uint32_t prev_extent_size(struct udf_extent *, enum udf_space_type, uint32_t, uint32_t);
struct udf_extent *find_extent(struct udf_disc *, uint32_t);
struct udf_extent *set_extent(struct udf_disc *, enum udf_space_type, uint32_t,uint32_t);
struct udf_desc *next_desc(struct udf_desc *, uint16_t);
struct udf_desc *find_desc(struct udf_extent *, uint32_t);
struct udf_desc *set_desc(struct udf_extent *, uint16_t, uint32_t, uint32_t, struct udf_data *);
void append_data(struct udf_desc *, struct udf_data *);
struct udf_data *alloc_data(void *, int);
/* unicode.c */
extern size_t decode_utf8(const dchars *, char *, size_t, size_t);
extern size_t encode_utf8(dchars *, const char *, size_t);
extern size_t decode_locale(const dchars *, char *, size_t, size_t);
extern size_t encode_locale(dchars *, const char *, size_t);
extern size_t decode_string(struct udf_disc *, const dstring *, char *, size_t, size_t);
extern size_t encode_string(struct udf_disc *, dstring *, const char *, size_t);
/* misc.c */
extern const char *appname;
size_t gen_uuid_from_vol_set_ident(char[17], const dstring *, size_t);
#endif /* __LIBUDFFS_H */
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