diff options
Diffstat (limited to 'qemu/roms/openbios/fs/grubfs/iso9660.h')
| -rw-r--r-- | qemu/roms/openbios/fs/grubfs/iso9660.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/qemu/roms/openbios/fs/grubfs/iso9660.h b/qemu/roms/openbios/fs/grubfs/iso9660.h new file mode 100644 index 000000000..6423a8f68 --- /dev/null +++ b/qemu/roms/openbios/fs/grubfs/iso9660.h @@ -0,0 +1,167 @@ +/* + * 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_ */ |