From fa8a840c6dfc9eb737ef5d777f066b05eb8d9544 Mon Sep 17 00:00:00 2001 From: Alex Auvolat Date: Tue, 24 Feb 2015 16:38:29 +0100 Subject: More preparation for iso9660 --- src/kernel/include/fs/iso9660.h | 87 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) (limited to 'src/kernel/include') diff --git a/src/kernel/include/fs/iso9660.h b/src/kernel/include/fs/iso9660.h index 227a8da..fcaec1a 100644 --- a/src/kernel/include/fs/iso9660.h +++ b/src/kernel/include/fs/iso9660.h @@ -1,5 +1,92 @@ #pragma once +#include + +#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[2]; // we want sizeof(iso9660_dr_t) == 34 +} 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]; +} 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...) +} iso9660_pvd_t; + +typedef struct { + uint8_t type; + char ident[5]; + uint8_t version; // always 1 +} 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 :*/ -- cgit v1.2.3