| /* |
| * ISO 9660 filesystem backend for GRUB (GRand Unified Bootloader) |
| * including Rock Ridge Extensions support |
| * |
| * Copyright (C) 1998, 1999 Kousuke Takai <tak@kmc.kyoto-u.ac.jp> |
| * |
| * 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., 51 Franklin Street - Fifth Floor, Boston, |
| * MA 02110-1301, USA. |
| */ |
| /* |
| * References: |
| * linux/fs/isofs/rock.[ch] |
| * mkisofs-1.11.1/diag/isoinfo.c |
| * mkisofs-1.11.1/iso9660.h |
| * (all are written by Eric Youngdale) |
| */ |
| |
| /* |
| * Modified by SONE Takeshi to work with FILO |
| */ |
| |
| #ifndef _ISO9660_H_ |
| #define _ISO9660_H_ |
| |
| #define ISO_SECTOR_BITS (11) |
| #define ISO_SECTOR_SIZE (1<<ISO_SECTOR_BITS) |
| |
| #define ISO_REGULAR 1 /* regular file */ |
| #define ISO_DIRECTORY 2 /* directory */ |
| #define ISO_OTHER 0 /* other file (with Rock Ridge) */ |
| |
| #define RR_FLAG_PX 0x01 /* have POSIX file attributes */ |
| #define RR_FLAG_NM 0x08 /* have alternate file name */ |
| |
| /* POSIX file attributes for Rock Ridge extensions */ |
| #define POSIX_S_IFMT 0xF000 |
| #define POSIX_S_IFREG 0x8000 |
| #define POSIX_S_IFDIR 0x4000 |
| |
| /* volume descriptor types */ |
| #define ISO_VD_PRIMARY 1 |
| #define ISO_VD_END 255 |
| |
| #define ISO_STANDARD_ID "CD001" |
| |
| #ifndef ASM_FILE |
| |
| typedef union { |
| uint8_t l,b; |
| } iso_8bit_t; |
| |
| typedef struct __iso_16bit { |
| uint16_t l, b; |
| } iso_16bit_t; |
| |
| typedef struct __iso_32bit { |
| uint32_t l, b; |
| } iso_32bit_t; |
| |
| typedef uint8_t iso_date_t[7]; |
| |
| struct iso_directory_record { |
| iso_8bit_t length; |
| iso_8bit_t ext_attr_length; |
| iso_32bit_t extent; |
| iso_32bit_t size; |
| iso_date_t date; |
| iso_8bit_t flags; |
| iso_8bit_t file_unit_size; |
| iso_8bit_t interleave; |
| iso_16bit_t volume_seq_number; |
| iso_8bit_t name_len; |
| uint8_t name[1]; |
| } __attribute__ ((packed)); |
| |
| struct iso_primary_descriptor { |
| iso_8bit_t type; |
| uint8_t id[5]; |
| iso_8bit_t version; |
| uint8_t _unused1[1]; |
| uint8_t system_id[32]; |
| uint8_t volume_id[32]; |
| uint8_t _unused2[8]; |
| iso_32bit_t volume_space_size; |
| uint8_t _unused3[32]; |
| iso_16bit_t volume_set_size; |
| iso_16bit_t volume_seq_number; |
| iso_16bit_t logical_block_size; |
| iso_32bit_t path_table_size; |
| uint8_t type_l_path_table[4]; |
| uint8_t opt_type_l_path_table[4]; |
| uint8_t type_m_path_table[4]; |
| uint8_t opt_type_m_path_table[4]; |
| struct iso_directory_record root_directory_record; |
| uint8_t volume_set_id[128]; |
| uint8_t publisher_id[128]; |
| uint8_t preparer_id[128]; |
| uint8_t application_id[128]; |
| uint8_t copyright_file_id[37]; |
| uint8_t abstract_file_id[37]; |
| uint8_t bibliographic_file_id[37]; |
| uint8_t creation_date[17]; |
| uint8_t modification_date[17]; |
| uint8_t expiration_date[17]; |
| uint8_t effective_date[17]; |
| iso_8bit_t file_structure_version; |
| uint8_t _unused4[1]; |
| uint8_t application_data[512]; |
| uint8_t _unused5[653]; |
| } __attribute__ ((packed)); |
| |
| struct rock_ridge { |
| uint16_t signature; |
| uint8_t len; |
| uint8_t version; |
| union { |
| struct CE { |
| iso_32bit_t extent; |
| iso_32bit_t offset; |
| iso_32bit_t size; |
| } ce; |
| struct NM { |
| iso_8bit_t flags; |
| uint8_t name[0]; |
| } nm; |
| struct PX { |
| iso_32bit_t mode; |
| iso_32bit_t nlink; |
| iso_32bit_t uid; |
| iso_32bit_t gid; |
| } px; |
| struct RR { |
| iso_8bit_t flags; |
| } rr; |
| } u; |
| } __attribute__ ((packed)); |
| |
| typedef union RR_ptr { |
| struct rock_ridge *rr; |
| char *ptr; |
| int i; |
| } RR_ptr_t; |
| |
| #define CHECK2(ptr, c1, c2) \ |
| (*(unsigned char *)(ptr) == (c1) && \ |
| *((unsigned char *)(ptr) + 1) == (c2)) |
| #define CHECK4(ptr, c1, c2, c3, c4) \ |
| (*(unsigned char *)(ptr) == (c1) && \ |
| *((unsigned char *)(ptr) + 1) == (c2) && \ |
| *((unsigned char *)(ptr) + 2) == (c3) && \ |
| *((unsigned char *)(ptr) + 3) == (c4)) |
| |
| #endif /* !ASM_FILE */ |
| |
| #endif /* _ISO9660_H_ */ |