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- #ifndef _ISOFS_FS_H
- #define _ISOFS_FS_H
- #include <linux/types.h>
- /*
- * The isofs filesystem constants/structures
- */
- /* This part borrowed from the bsd386 isofs */
- #define ISODCL(from, to) (to - from + 1)
- struct iso_volume_descriptor {
- char type[ISODCL(1,1)]; /* 711 */
- char id[ISODCL(2,6)];
- char version[ISODCL(7,7)];
- char data[ISODCL(8,2048)];
- };
- /* volume descriptor types */
- #define ISO_VD_PRIMARY 1
- #define ISO_VD_END 255
- #define ISO_STANDARD_ID "CD001"
- struct iso_primary_descriptor {
- char type [ISODCL ( 1, 1)]; /* 711 */
- char id [ISODCL ( 2, 6)];
- char version [ISODCL ( 7, 7)]; /* 711 */
- char unused1 [ISODCL ( 8, 8)];
- char system_id [ISODCL ( 9, 40)]; /* achars */
- char volume_id [ISODCL ( 41, 72)]; /* dchars */
- char unused2 [ISODCL ( 73, 80)];
- char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
- char unused3 [ISODCL ( 89, 120)];
- char volume_set_size [ISODCL (121, 124)]; /* 723 */
- char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
- char logical_block_size [ISODCL (129, 132)]; /* 723 */
- char path_table_size [ISODCL (133, 140)]; /* 733 */
- char type_l_path_table [ISODCL (141, 144)]; /* 731 */
- char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
- char type_m_path_table [ISODCL (149, 152)]; /* 732 */
- char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
- char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
- char volume_set_id [ISODCL (191, 318)]; /* dchars */
- char publisher_id [ISODCL (319, 446)]; /* achars */
- char preparer_id [ISODCL (447, 574)]; /* achars */
- char application_id [ISODCL (575, 702)]; /* achars */
- char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
- char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
- char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
- char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
- char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
- char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
- char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
- char file_structure_version [ISODCL (882, 882)]; /* 711 */
- char unused4 [ISODCL (883, 883)];
- char application_data [ISODCL (884, 1395)];
- char unused5 [ISODCL (1396, 2048)];
- };
- #define HS_STANDARD_ID "CDROM"
- struct hs_volume_descriptor {
- char foo [ISODCL ( 1, 8)]; /* 733 */
- char type [ISODCL ( 9, 9)]; /* 711 */
- char id [ISODCL ( 10, 14)];
- char version [ISODCL ( 15, 15)]; /* 711 */
- char data[ISODCL(16,2048)];
- };
- struct hs_primary_descriptor {
- char foo [ISODCL ( 1, 8)]; /* 733 */
- char type [ISODCL ( 9, 9)]; /* 711 */
- char id [ISODCL ( 10, 14)];
- char version [ISODCL ( 15, 15)]; /* 711 */
- char unused1 [ISODCL ( 16, 16)]; /* 711 */
- char system_id [ISODCL ( 17, 48)]; /* achars */
- char volume_id [ISODCL ( 49, 80)]; /* dchars */
- char unused2 [ISODCL ( 81, 88)]; /* 733 */
- char volume_space_size [ISODCL ( 89, 96)]; /* 733 */
- char unused3 [ISODCL ( 97, 128)]; /* 733 */
- char volume_set_size [ISODCL (129, 132)]; /* 723 */
- char volume_sequence_number [ISODCL (133, 136)]; /* 723 */
- char logical_block_size [ISODCL (137, 140)]; /* 723 */
- char path_table_size [ISODCL (141, 148)]; /* 733 */
- char type_l_path_table [ISODCL (149, 152)]; /* 731 */
- char unused4 [ISODCL (153, 180)]; /* 733 */
- char root_directory_record [ISODCL (181, 214)]; /* 9.1 */
- };
- /* We use this to help us look up the parent inode numbers. */
- struct iso_path_table{
- unsigned char name_len[2]; /* 721 */
- char extent[4]; /* 731 */
- char parent[2]; /* 721 */
- char name[0];
- };
- /* high sierra is identical to iso, except that the date is only 6 bytes, and
- there is an extra reserved byte after the flags */
- struct iso_directory_record {
- char length [ISODCL (1, 1)]; /* 711 */
- char ext_attr_length [ISODCL (2, 2)]; /* 711 */
- char extent [ISODCL (3, 10)]; /* 733 */
- char size [ISODCL (11, 18)]; /* 733 */
- char date [ISODCL (19, 25)]; /* 7 by 711 */
- char flags [ISODCL (26, 26)];
- char file_unit_size [ISODCL (27, 27)]; /* 711 */
- char interleave [ISODCL (28, 28)]; /* 711 */
- char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
- unsigned char name_len [ISODCL (33, 33)]; /* 711 */
- char name [0];
- };
- #define ISOFS_BLOCK_BITS 11
- #define ISOFS_BLOCK_SIZE 2048
- #define ISOFS_BUFFER_SIZE(INODE) ((INODE)->i_sb->s_blocksize)
- #define ISOFS_BUFFER_BITS(INODE) ((INODE)->i_sb->s_blocksize_bits)
- #if 0
- #ifdef ISOFS_FIXED_BLOCKSIZE
- /* We use these until the buffer cache supports 2048 */
- #define ISOFS_BUFFER_BITS 10
- #define ISOFS_BUFFER_SIZE 1024
- #define ISOFS_BLOCK_NUMBER(X) (X<<1)
- #else
- #define ISOFS_BUFFER_BITS 11
- #define ISOFS_BUFFER_SIZE 2048
- #define ISOFS_BLOCK_NUMBER(X) (X)
- #endif
- #endif
- #define ISOFS_SUPER_MAGIC 0x9660
- #define ISOFS_FILE_UNKNOWN 0
- #define ISOFS_FILE_TEXT 1
- #define ISOFS_FILE_BINARY 2
- #define ISOFS_FILE_TEXT_M 3
- struct isofs_super_block {
- unsigned long s_ninodes;
- unsigned long s_nzones;
- unsigned long s_firstdatazone;
- unsigned long s_log_zone_size;
- unsigned long s_max_size;
- unsigned char s_high_sierra; /* A simple flag */
- unsigned char s_mapping;
- unsigned char s_conversion;
- unsigned char s_rock;
- unsigned char s_cruft; /* Broken disks with high
- byte of length containing
- junk */
- unsigned int s_blocksize;
- unsigned int s_blocksize_bits;
- unsigned int s_mounted;
- unsigned char s_unhide;
- unsigned char s_nosuid;
- unsigned char s_nodev;
- mode_t s_mode;
- };
- /*
- * iso fs inode data in memory
- */
- struct iso_inode {
- unsigned int i_first_extent;
- unsigned int i_backlink;
- unsigned char i_file_format;
- };
- /* From fs/isofs/rock.h in Linux, (c) 1995, 1996 Eric Youngdale */
- /* These structs are used by the system-use-sharing protocol, in which the
- Rock Ridge extensions are embedded. It is quite possible that other
- extensions are present on the disk, and this is fine as long as they
- all use SUSP */
- struct SU_SP{
- unsigned char magic[2];
- unsigned char skip;
- };
- struct SU_CE{
- char extent[8];
- char offset[8];
- char size[8];
- };
- struct SU_ER{
- unsigned char len_id;
- unsigned char len_des;
- unsigned char len_src;
- unsigned char ext_ver;
- char data[0];
- };
- struct RR_RR{
- char flags[1];
- };
- struct RR_PX{
- char mode[8];
- char n_links[8];
- char uid[8];
- char gid[8];
- };
- struct RR_PN{
- char dev_high[8];
- char dev_low[8];
- };
- struct SL_component{
- unsigned char flags;
- unsigned char len;
- char text[0];
- };
- struct RR_SL{
- unsigned char flags;
- struct SL_component link;
- };
- struct RR_NM{
- unsigned char flags;
- char name[0];
- };
- struct RR_CL{
- char location[8];
- };
- struct RR_PL{
- char location[8];
- };
- struct stamp{
- char time[7];
- };
- struct RR_TF{
- char flags;
- struct stamp times[0]; /* Variable number of these beasts */
- };
- /* These are the bits and their meanings for flags in the TF structure. */
- #define TF_CREATE 1
- #define TF_MODIFY 2
- #define TF_ACCESS 4
- #define TF_ATTRIBUTES 8
- #define TF_BACKUP 16
- #define TF_EXPIRATION 32
- #define TF_EFFECTIVE 64
- #define TF_LONG_FORM 128
- struct rock_ridge{
- char signature[2];
- unsigned char len;
- unsigned char version;
- union{
- struct SU_SP SP;
- struct SU_CE CE;
- struct SU_ER ER;
- struct RR_RR RR;
- struct RR_PX PX;
- struct RR_PN PN;
- struct RR_SL SL;
- struct RR_NM NM;
- struct RR_CL CL;
- struct RR_PL PL;
- struct RR_TF TF;
- } u;
- };
- #define RR_PX 1 /* POSIX attributes */
- #define RR_PN 2 /* POSIX devices */
- #define RR_SL 4 /* Symbolic link */
- #define RR_NM 8 /* Alternate Name */
- #define RR_CL 16 /* Child link */
- #define RR_PL 32 /* Parent link */
- #define RR_RE 64 /* Relocation directory */
- #define RR_TF 128 /* Timestamps */
- #endif
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