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jcastillo |
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#ifndef _ISOFS_FS_H
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#define _ISOFS_FS_H
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#include <linux/types.h>
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/*
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* The isofs filesystem constants/structures
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*/
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/* This part borrowed from the bsd386 isofs */
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#define ISODCL(from, to) (to - from + 1)
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struct iso_volume_descriptor {
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char type[ISODCL(1,1)]; /* 711 */
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char id[ISODCL(2,6)];
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char version[ISODCL(7,7)];
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char data[ISODCL(8,2048)];
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};
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/* volume descriptor types */
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#define ISO_VD_PRIMARY 1
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#define ISO_VD_SUPPLEMENTARY 2
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#define ISO_VD_END 255
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#define ISO_STANDARD_ID "CD001"
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struct iso_primary_descriptor {
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char type [ISODCL ( 1, 1)]; /* 711 */
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char id [ISODCL ( 2, 6)];
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char version [ISODCL ( 7, 7)]; /* 711 */
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char unused1 [ISODCL ( 8, 8)];
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char system_id [ISODCL ( 9, 40)]; /* achars */
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char volume_id [ISODCL ( 41, 72)]; /* dchars */
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char unused2 [ISODCL ( 73, 80)];
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char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
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char unused3 [ISODCL ( 89, 120)];
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char volume_set_size [ISODCL (121, 124)]; /* 723 */
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char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
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char logical_block_size [ISODCL (129, 132)]; /* 723 */
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char path_table_size [ISODCL (133, 140)]; /* 733 */
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char type_l_path_table [ISODCL (141, 144)]; /* 731 */
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char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
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char type_m_path_table [ISODCL (149, 152)]; /* 732 */
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char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
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char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
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char volume_set_id [ISODCL (191, 318)]; /* dchars */
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char publisher_id [ISODCL (319, 446)]; /* achars */
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char preparer_id [ISODCL (447, 574)]; /* achars */
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char application_id [ISODCL (575, 702)]; /* achars */
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char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
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char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
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char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
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char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
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char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
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char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
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char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
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char file_structure_version [ISODCL (882, 882)]; /* 711 */
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char unused4 [ISODCL (883, 883)];
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char application_data [ISODCL (884, 1395)];
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char unused5 [ISODCL (1396, 2048)];
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};
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/* Almost the same as the primary descriptor but two fields are specified */
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struct iso_supplementary_descriptor {
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char type [ISODCL ( 1, 1)]; /* 711 */
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char id [ISODCL ( 2, 6)];
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char version [ISODCL ( 7, 7)]; /* 711 */
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char flags [ISODCL ( 8, 8)]; /* 853 */
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char system_id [ISODCL ( 9, 40)]; /* achars */
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char volume_id [ISODCL ( 41, 72)]; /* dchars */
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char unused2 [ISODCL ( 73, 80)];
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char volume_space_size [ISODCL ( 81, 88)]; /* 733 */
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char escape [ISODCL ( 89, 120)]; /* 856 */
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char volume_set_size [ISODCL (121, 124)]; /* 723 */
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char volume_sequence_number [ISODCL (125, 128)]; /* 723 */
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char logical_block_size [ISODCL (129, 132)]; /* 723 */
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char path_table_size [ISODCL (133, 140)]; /* 733 */
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char type_l_path_table [ISODCL (141, 144)]; /* 731 */
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char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */
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char type_m_path_table [ISODCL (149, 152)]; /* 732 */
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char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */
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char root_directory_record [ISODCL (157, 190)]; /* 9.1 */
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char volume_set_id [ISODCL (191, 318)]; /* dchars */
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char publisher_id [ISODCL (319, 446)]; /* achars */
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char preparer_id [ISODCL (447, 574)]; /* achars */
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char application_id [ISODCL (575, 702)]; /* achars */
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char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */
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char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */
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char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */
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char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */
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char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */
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char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */
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char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */
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char file_structure_version [ISODCL (882, 882)]; /* 711 */
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char unused4 [ISODCL (883, 883)];
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char application_data [ISODCL (884, 1395)];
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char unused5 [ISODCL (1396, 2048)];
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};
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#define HS_STANDARD_ID "CDROM"
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struct hs_volume_descriptor {
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char foo [ISODCL ( 1, 8)]; /* 733 */
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char type [ISODCL ( 9, 9)]; /* 711 */
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char id [ISODCL ( 10, 14)];
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char version [ISODCL ( 15, 15)]; /* 711 */
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char data[ISODCL(16,2048)];
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};
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struct hs_primary_descriptor {
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char foo [ISODCL ( 1, 8)]; /* 733 */
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char type [ISODCL ( 9, 9)]; /* 711 */
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char id [ISODCL ( 10, 14)];
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char version [ISODCL ( 15, 15)]; /* 711 */
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char unused1 [ISODCL ( 16, 16)]; /* 711 */
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char system_id [ISODCL ( 17, 48)]; /* achars */
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char volume_id [ISODCL ( 49, 80)]; /* dchars */
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char unused2 [ISODCL ( 81, 88)]; /* 733 */
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char volume_space_size [ISODCL ( 89, 96)]; /* 733 */
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char unused3 [ISODCL ( 97, 128)]; /* 733 */
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char volume_set_size [ISODCL (129, 132)]; /* 723 */
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char volume_sequence_number [ISODCL (133, 136)]; /* 723 */
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char logical_block_size [ISODCL (137, 140)]; /* 723 */
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char path_table_size [ISODCL (141, 148)]; /* 733 */
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char type_l_path_table [ISODCL (149, 152)]; /* 731 */
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char unused4 [ISODCL (153, 180)]; /* 733 */
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char root_directory_record [ISODCL (181, 214)]; /* 9.1 */
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};
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/* We use this to help us look up the parent inode numbers. */
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struct iso_path_table{
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unsigned char name_len[2]; /* 721 */
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char extent[4]; /* 731 */
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char parent[2]; /* 721 */
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char name[0];
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};
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/* high sierra is identical to iso, except that the date is only 6 bytes, and
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there is an extra reserved byte after the flags */
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struct iso_directory_record {
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char length [ISODCL (1, 1)]; /* 711 */
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char ext_attr_length [ISODCL (2, 2)]; /* 711 */
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char extent [ISODCL (3, 10)]; /* 733 */
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char size [ISODCL (11, 18)]; /* 733 */
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char date [ISODCL (19, 25)]; /* 7 by 711 */
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char flags [ISODCL (26, 26)];
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char file_unit_size [ISODCL (27, 27)]; /* 711 */
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char interleave [ISODCL (28, 28)]; /* 711 */
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char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
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unsigned char name_len [ISODCL (33, 33)]; /* 711 */
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char name [0];
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};
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#define ISOFS_BLOCK_BITS 11
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#define ISOFS_BLOCK_SIZE 2048
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#define ISOFS_BUFFER_SIZE(INODE) ((INODE)->i_sb->s_blocksize)
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#define ISOFS_BUFFER_BITS(INODE) ((INODE)->i_sb->s_blocksize_bits)
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#define ISOFS_ZONE_BITS(INODE) ((INODE)->i_sb->u.isofs_sb.s_log_zone_size)
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#define ISOFS_SUPER_MAGIC 0x9660
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#define ISOFS_FILE_UNKNOWN 0
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#define ISOFS_FILE_TEXT 1
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#define ISOFS_FILE_BINARY 2
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#define ISOFS_FILE_TEXT_M 3
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#ifdef __KERNEL__
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extern int isonum_711(char *);
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extern int isonum_712(char *);
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extern int isonum_721(char *);
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extern int isonum_722(char *);
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extern int isonum_723(char *);
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extern int isonum_731(char *);
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extern int isonum_732(char *);
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extern int isonum_733(char *);
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extern int iso_date(char *, int);
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extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *);
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extern int get_rock_ridge_filename(struct iso_directory_record *, char *, struct inode *);
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extern char * get_rock_ridge_symlink(struct inode *);
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extern int find_rock_ridge_relocation(struct iso_directory_record *, struct inode *);
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int get_joliet_filename(struct iso_directory_record *, struct inode *, unsigned char *);
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/* The stuff that follows may be totally unneeded. I have not checked to see
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which prototypes we are still using. */
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extern int isofs_open(struct inode * inode, struct file * filp);
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extern void isofs_release(struct inode * inode, struct file * filp);
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extern int isofs_lookup(struct inode * dir,const char * name, int len,
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struct inode ** result);
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extern unsigned long isofs_count_free_inodes(struct super_block *sb);
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extern int isofs_new_block(int dev);
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extern int isofs_free_block(int dev, int block);
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extern int isofs_bmap(struct inode *,int);
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extern void isofs_put_super(struct super_block *);
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extern struct super_block *isofs_read_super(struct super_block *,void *,int);
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extern int init_iso9660_fs(void);
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extern void isofs_read_inode(struct inode *);
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extern void isofs_put_inode(struct inode *);
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extern void isofs_statfs(struct super_block *, struct statfs *, int);
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extern int isofs_lseek(struct inode *, struct file *, off_t, int);
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extern int isofs_read(struct inode *, struct file *, char *, int);
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extern int isofs_lookup_grandparent(struct inode *, int);
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extern struct inode_operations isofs_file_inode_operations;
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extern struct inode_operations isofs_dir_inode_operations;
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extern struct inode_operations isofs_symlink_inode_operations;
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extern struct inode_operations isofs_chrdev_inode_operations;
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extern struct inode_operations isofs_blkdev_inode_operations;
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extern struct inode_operations isofs_fifo_inode_operations;
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/* The following macros are used to check for memory leaks. */
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#ifdef LEAK_CHECK
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#define free_s leak_check_free_s
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#define malloc leak_check_malloc
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#define bread leak_check_bread
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#define brelse leak_check_brelse
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extern void * leak_check_malloc(unsigned int size);
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extern void leak_check_free_s(void * obj, int size);
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extern struct buffer_head * leak_check_bread(int dev, int block, int size);
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extern void leak_check_brelse(struct buffer_head * bh);
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#endif /* LEAK_CHECK */
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#endif /* __KERNEL__ */
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#endif
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