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#pragma once
#include <vfs.h>
#define ISO9660_VDT_BOOT 0
#define ISO9660_VDT_PRIMARY 1
#define ISO9660_VDT_SUPPLEMENTARY 2
#define ISO9660_VDT_PARTITION 3
#define ISO9660_VDT_TERMINATOR 255
typedef struct {
uint32_t lsb, msb;
} uint32_lsb_msb_t;
typedef struct {
uint16_t lsb, msb;
} uint16_lsb_msb_t;
typedef struct {
uint8_t years_since_1990;
uint8_t month;
uint8_t day;
uint8_t hour;
uint8_t minute;
uint8_t second;
uint8_t gmt_offset;
} iso9660_dr_date_t;
typedef struct { // Directory record
uint8_t len; // length of the record
uint8_t ear_len; // length of extended attribute record
uint32_lsb_msb_t lba_loc; // location of extent
uint32_lsb_msb_t size; // size of extent
iso9660_dr_date_t date;
uint8_t flags;
uint8_t interleave_unit_size;
uint8_t interleave_gap_size;
uint16_lsb_msb_t vol_seq_num;
uint8_t name_len;
char name[1]; // we want sizeof(iso9660_dr_t) == 34
} __attribute__((packed)) iso9660_dr_t;
typedef struct { // Boot record
uint8_t type;
char ident[5];
uint8_t version; // always 1
char sys_ident[32];
char boot_ident[32];
char reserved[1977];
} __attribute__((packed)) iso9660_bootrecord_t;
typedef struct { // Primary volume descriptor
uint8_t type;
char ident[5];
uint8_t version; // always 1
uint8_t unused0;
char sys_ident[32];
char vol_ident[32];
uint8_t unused1[8];
uint32_lsb_msb_t volume_size;
uint8_t unused2[32];
uint16_lsb_msb_t volume_set_size, volume_seq_number;
uint16_lsb_msb_t block_size;
uint32_lsb_msb_t path_table_size;
uint32_t lpt_loc, olpt_loc, mpt_loc, ompt_loc; // location of path tables
iso9660_dr_t root_directory;
// more fields (not interesting...)
} __attribute__((packed)) iso9660_pvd_t;
typedef struct {
uint8_t type;
char ident[5];
uint8_t version; // always 1
} __attribute__((packed)) iso9660_vdt_terminator_t; // volume descriptor table terminator
typedef union {
iso9660_bootrecord_t boot;
iso9660_pvd_t prim;
iso9660_vdt_terminator_t term;
char buf[2048];
} iso9660_vdt_entry_t;
void register_iso9660_driver();
/* vim: set ts=4 sw=4 tw=0 noet :*/
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