16f52b16cSGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2607ca46eSDavid Howells #ifndef _ISOFS_FS_H 3607ca46eSDavid Howells #define _ISOFS_FS_H 4607ca46eSDavid Howells 5607ca46eSDavid Howells #include <linux/types.h> 6607ca46eSDavid Howells #include <linux/magic.h> 7607ca46eSDavid Howells 8607ca46eSDavid Howells /* 9607ca46eSDavid Howells * The isofs filesystem constants/structures 10607ca46eSDavid Howells */ 11607ca46eSDavid Howells 12607ca46eSDavid Howells /* This part borrowed from the bsd386 isofs */ 13607ca46eSDavid Howells #define ISODCL(from, to) (to - from + 1) 14607ca46eSDavid Howells 15607ca46eSDavid Howells struct iso_volume_descriptor { 16cb917757SArnd Bergmann __u8 type[ISODCL(1,1)]; /* 711 */ 17607ca46eSDavid Howells char id[ISODCL(2,6)]; 18cb917757SArnd Bergmann __u8 version[ISODCL(7,7)]; 19cb917757SArnd Bergmann __u8 data[ISODCL(8,2048)]; 20607ca46eSDavid Howells }; 21607ca46eSDavid Howells 22607ca46eSDavid Howells /* volume descriptor types */ 23607ca46eSDavid Howells #define ISO_VD_PRIMARY 1 24607ca46eSDavid Howells #define ISO_VD_SUPPLEMENTARY 2 25607ca46eSDavid Howells #define ISO_VD_END 255 26607ca46eSDavid Howells 27607ca46eSDavid Howells #define ISO_STANDARD_ID "CD001" 28607ca46eSDavid Howells 29607ca46eSDavid Howells struct iso_primary_descriptor { 30cb917757SArnd Bergmann __u8 type [ISODCL ( 1, 1)]; /* 711 */ 31607ca46eSDavid Howells char id [ISODCL ( 2, 6)]; 32cb917757SArnd Bergmann __u8 version [ISODCL ( 7, 7)]; /* 711 */ 33cb917757SArnd Bergmann __u8 unused1 [ISODCL ( 8, 8)]; 34607ca46eSDavid Howells char system_id [ISODCL ( 9, 40)]; /* achars */ 35607ca46eSDavid Howells char volume_id [ISODCL ( 41, 72)]; /* dchars */ 36cb917757SArnd Bergmann __u8 unused2 [ISODCL ( 73, 80)]; 37cb917757SArnd Bergmann __u8 volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 38cb917757SArnd Bergmann __u8 unused3 [ISODCL ( 89, 120)]; 39cb917757SArnd Bergmann __u8 volume_set_size [ISODCL (121, 124)]; /* 723 */ 40cb917757SArnd Bergmann __u8 volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 41cb917757SArnd Bergmann __u8 logical_block_size [ISODCL (129, 132)]; /* 723 */ 42cb917757SArnd Bergmann __u8 path_table_size [ISODCL (133, 140)]; /* 733 */ 43cb917757SArnd Bergmann __u8 type_l_path_table [ISODCL (141, 144)]; /* 731 */ 44cb917757SArnd Bergmann __u8 opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 45cb917757SArnd Bergmann __u8 type_m_path_table [ISODCL (149, 152)]; /* 732 */ 46cb917757SArnd Bergmann __u8 opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 47cb917757SArnd Bergmann __u8 root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 48607ca46eSDavid Howells char volume_set_id [ISODCL (191, 318)]; /* dchars */ 49607ca46eSDavid Howells char publisher_id [ISODCL (319, 446)]; /* achars */ 50607ca46eSDavid Howells char preparer_id [ISODCL (447, 574)]; /* achars */ 51607ca46eSDavid Howells char application_id [ISODCL (575, 702)]; /* achars */ 52607ca46eSDavid Howells char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 53607ca46eSDavid Howells char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 54607ca46eSDavid Howells char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 55cb917757SArnd Bergmann __u8 creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 56cb917757SArnd Bergmann __u8 modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 57cb917757SArnd Bergmann __u8 expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 58cb917757SArnd Bergmann __u8 effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 59cb917757SArnd Bergmann __u8 file_structure_version [ISODCL (882, 882)]; /* 711 */ 60cb917757SArnd Bergmann __u8 unused4 [ISODCL (883, 883)]; 61cb917757SArnd Bergmann __u8 application_data [ISODCL (884, 1395)]; 62cb917757SArnd Bergmann __u8 unused5 [ISODCL (1396, 2048)]; 63607ca46eSDavid Howells }; 64607ca46eSDavid Howells 65607ca46eSDavid Howells /* Almost the same as the primary descriptor but two fields are specified */ 66607ca46eSDavid Howells struct iso_supplementary_descriptor { 67cb917757SArnd Bergmann __u8 type [ISODCL ( 1, 1)]; /* 711 */ 68607ca46eSDavid Howells char id [ISODCL ( 2, 6)]; 69cb917757SArnd Bergmann __u8 version [ISODCL ( 7, 7)]; /* 711 */ 70cb917757SArnd Bergmann __u8 flags [ISODCL ( 8, 8)]; /* 853 */ 71607ca46eSDavid Howells char system_id [ISODCL ( 9, 40)]; /* achars */ 72607ca46eSDavid Howells char volume_id [ISODCL ( 41, 72)]; /* dchars */ 73cb917757SArnd Bergmann __u8 unused2 [ISODCL ( 73, 80)]; 74cb917757SArnd Bergmann __u8 volume_space_size [ISODCL ( 81, 88)]; /* 733 */ 75cb917757SArnd Bergmann __u8 escape [ISODCL ( 89, 120)]; /* 856 */ 76cb917757SArnd Bergmann __u8 volume_set_size [ISODCL (121, 124)]; /* 723 */ 77cb917757SArnd Bergmann __u8 volume_sequence_number [ISODCL (125, 128)]; /* 723 */ 78cb917757SArnd Bergmann __u8 logical_block_size [ISODCL (129, 132)]; /* 723 */ 79cb917757SArnd Bergmann __u8 path_table_size [ISODCL (133, 140)]; /* 733 */ 80cb917757SArnd Bergmann __u8 type_l_path_table [ISODCL (141, 144)]; /* 731 */ 81cb917757SArnd Bergmann __u8 opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ 82cb917757SArnd Bergmann __u8 type_m_path_table [ISODCL (149, 152)]; /* 732 */ 83cb917757SArnd Bergmann __u8 opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ 84cb917757SArnd Bergmann __u8 root_directory_record [ISODCL (157, 190)]; /* 9.1 */ 85607ca46eSDavid Howells char volume_set_id [ISODCL (191, 318)]; /* dchars */ 86607ca46eSDavid Howells char publisher_id [ISODCL (319, 446)]; /* achars */ 87607ca46eSDavid Howells char preparer_id [ISODCL (447, 574)]; /* achars */ 88607ca46eSDavid Howells char application_id [ISODCL (575, 702)]; /* achars */ 89607ca46eSDavid Howells char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ 90607ca46eSDavid Howells char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ 91607ca46eSDavid Howells char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ 92cb917757SArnd Bergmann __u8 creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ 93cb917757SArnd Bergmann __u8 modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ 94cb917757SArnd Bergmann __u8 expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ 95cb917757SArnd Bergmann __u8 effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ 96cb917757SArnd Bergmann __u8 file_structure_version [ISODCL (882, 882)]; /* 711 */ 97cb917757SArnd Bergmann __u8 unused4 [ISODCL (883, 883)]; 98cb917757SArnd Bergmann __u8 application_data [ISODCL (884, 1395)]; 99cb917757SArnd Bergmann __u8 unused5 [ISODCL (1396, 2048)]; 100607ca46eSDavid Howells }; 101607ca46eSDavid Howells 102607ca46eSDavid Howells 103607ca46eSDavid Howells #define HS_STANDARD_ID "CDROM" 104607ca46eSDavid Howells 105607ca46eSDavid Howells struct hs_volume_descriptor { 106cb917757SArnd Bergmann __u8 foo [ISODCL ( 1, 8)]; /* 733 */ 107cb917757SArnd Bergmann __u8 type [ISODCL ( 9, 9)]; /* 711 */ 108607ca46eSDavid Howells char id [ISODCL ( 10, 14)]; 109cb917757SArnd Bergmann __u8 version [ISODCL ( 15, 15)]; /* 711 */ 110cb917757SArnd Bergmann __u8 data[ISODCL(16,2048)]; 111607ca46eSDavid Howells }; 112607ca46eSDavid Howells 113607ca46eSDavid Howells 114607ca46eSDavid Howells struct hs_primary_descriptor { 115cb917757SArnd Bergmann __u8 foo [ISODCL ( 1, 8)]; /* 733 */ 116cb917757SArnd Bergmann __u8 type [ISODCL ( 9, 9)]; /* 711 */ 117cb917757SArnd Bergmann __u8 id [ISODCL ( 10, 14)]; 118cb917757SArnd Bergmann __u8 version [ISODCL ( 15, 15)]; /* 711 */ 119cb917757SArnd Bergmann __u8 unused1 [ISODCL ( 16, 16)]; /* 711 */ 120607ca46eSDavid Howells char system_id [ISODCL ( 17, 48)]; /* achars */ 121607ca46eSDavid Howells char volume_id [ISODCL ( 49, 80)]; /* dchars */ 122cb917757SArnd Bergmann __u8 unused2 [ISODCL ( 81, 88)]; /* 733 */ 123cb917757SArnd Bergmann __u8 volume_space_size [ISODCL ( 89, 96)]; /* 733 */ 124cb917757SArnd Bergmann __u8 unused3 [ISODCL ( 97, 128)]; /* 733 */ 125cb917757SArnd Bergmann __u8 volume_set_size [ISODCL (129, 132)]; /* 723 */ 126cb917757SArnd Bergmann __u8 volume_sequence_number [ISODCL (133, 136)]; /* 723 */ 127cb917757SArnd Bergmann __u8 logical_block_size [ISODCL (137, 140)]; /* 723 */ 128cb917757SArnd Bergmann __u8 path_table_size [ISODCL (141, 148)]; /* 733 */ 129cb917757SArnd Bergmann __u8 type_l_path_table [ISODCL (149, 152)]; /* 731 */ 130cb917757SArnd Bergmann __u8 unused4 [ISODCL (153, 180)]; /* 733 */ 131cb917757SArnd Bergmann __u8 root_directory_record [ISODCL (181, 214)]; /* 9.1 */ 132607ca46eSDavid Howells }; 133607ca46eSDavid Howells 134607ca46eSDavid Howells /* We use this to help us look up the parent inode numbers. */ 135607ca46eSDavid Howells 136607ca46eSDavid Howells struct iso_path_table{ 137cb917757SArnd Bergmann __u8 name_len[2]; /* 721 */ 138cb917757SArnd Bergmann __u8 extent[4]; /* 731 */ 139cb917757SArnd Bergmann __u8 parent[2]; /* 721 */ 140*94dfc73eSGustavo A. R. Silva char name[]; 141607ca46eSDavid Howells } __attribute__((packed)); 142607ca46eSDavid Howells 143607ca46eSDavid Howells /* high sierra is identical to iso, except that the date is only 6 bytes, and 144607ca46eSDavid Howells there is an extra reserved byte after the flags */ 145607ca46eSDavid Howells 146607ca46eSDavid Howells struct iso_directory_record { 147cb917757SArnd Bergmann __u8 length [ISODCL (1, 1)]; /* 711 */ 148cb917757SArnd Bergmann __u8 ext_attr_length [ISODCL (2, 2)]; /* 711 */ 149cb917757SArnd Bergmann __u8 extent [ISODCL (3, 10)]; /* 733 */ 150cb917757SArnd Bergmann __u8 size [ISODCL (11, 18)]; /* 733 */ 151cb917757SArnd Bergmann __u8 date [ISODCL (19, 25)]; /* 7 by 711 */ 152cb917757SArnd Bergmann __u8 flags [ISODCL (26, 26)]; 153cb917757SArnd Bergmann __u8 file_unit_size [ISODCL (27, 27)]; /* 711 */ 154cb917757SArnd Bergmann __u8 interleave [ISODCL (28, 28)]; /* 711 */ 155cb917757SArnd Bergmann __u8 volume_sequence_number [ISODCL (29, 32)]; /* 723 */ 156cb917757SArnd Bergmann __u8 name_len [ISODCL (33, 33)]; /* 711 */ 157*94dfc73eSGustavo A. R. Silva char name []; 158607ca46eSDavid Howells } __attribute__((packed)); 159607ca46eSDavid Howells 160607ca46eSDavid Howells #define ISOFS_BLOCK_BITS 11 161607ca46eSDavid Howells #define ISOFS_BLOCK_SIZE 2048 162607ca46eSDavid Howells 163607ca46eSDavid Howells #define ISOFS_BUFFER_SIZE(INODE) ((INODE)->i_sb->s_blocksize) 164607ca46eSDavid Howells #define ISOFS_BUFFER_BITS(INODE) ((INODE)->i_sb->s_blocksize_bits) 165607ca46eSDavid Howells 166607ca46eSDavid Howells #endif /* _ISOFS_FS_H */ 167