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Edit File : iso_fs.h \| Size : 6.33 KB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note / #ifndef _ISOFS_FS_H #define _ISOFS_FS_H #include <linux/types.h> #include <linux/magic.h> / * The isofs filesystem constants/structures / / This part borrowed from the bsd386 isofs / #define ISODCL(from, to) (to - from + 1) struct iso_volume_descriptor { __u8 type[ISODCL(1,1)]; / 711 / char id[ISODCL(2,6)]; __u8 version[ISODCL(7,7)]; __u8 data[ISODCL(8,2048)]; }; / volume descriptor types / #define ISO_VD_PRIMARY 1 #define ISO_VD_SUPPLEMENTARY 2 #define ISO_VD_END 255 #define ISO_STANDARD_ID "CD001" struct iso_primary_descriptor { __u8 type [ISODCL ( 1, 1)]; / 711 / char id [ISODCL ( 2, 6)]; __u8 version [ISODCL ( 7, 7)]; / 711 / __u8 unused1 [ISODCL ( 8, 8)]; char system_id [ISODCL ( 9, 40)]; / achars / char volume_id [ISODCL ( 41, 72)]; / dchars / __u8 unused2 [ISODCL ( 73, 80)]; __u8 volume_space_size [ISODCL ( 81, 88)]; / 733 / __u8 unused3 [ISODCL ( 89, 120)]; __u8 volume_set_size [ISODCL (121, 124)]; / 723 / __u8 volume_sequence_number [ISODCL (125, 128)]; / 723 / __u8 logical_block_size [ISODCL (129, 132)]; / 723 / __u8 path_table_size [ISODCL (133, 140)]; / 733 / __u8 type_l_path_table [ISODCL (141, 144)]; / 731 / __u8 opt_type_l_path_table [ISODCL (145, 148)]; / 731 / __u8 type_m_path_table [ISODCL (149, 152)]; / 732 / __u8 opt_type_m_path_table [ISODCL (153, 156)]; / 732 / __u8 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 / __u8 creation_date [ISODCL (814, 830)]; / 8.4.26.1 / __u8 modification_date [ISODCL (831, 847)]; / 8.4.26.1 / __u8 expiration_date [ISODCL (848, 864)]; / 8.4.26.1 / __u8 effective_date [ISODCL (865, 881)]; / 8.4.26.1 / __u8 file_structure_version [ISODCL (882, 882)]; / 711 / __u8 unused4 [ISODCL (883, 883)]; __u8 application_data [ISODCL (884, 1395)]; __u8 unused5 [ISODCL (1396, 2048)]; }; / Almost the same as the primary descriptor but two fields are specified / struct iso_supplementary_descriptor { __u8 type [ISODCL ( 1, 1)]; / 711 / char id [ISODCL ( 2, 6)]; __u8 version [ISODCL ( 7, 7)]; / 711 / __u8 flags [ISODCL ( 8, 8)]; / 853 / char system_id [ISODCL ( 9, 40)]; / achars / char volume_id [ISODCL ( 41, 72)]; / dchars / __u8 unused2 [ISODCL ( 73, 80)]; __u8 volume_space_size [ISODCL ( 81, 88)]; / 733 / __u8 escape [ISODCL ( 89, 120)]; / 856 / __u8 volume_set_size [ISODCL (121, 124)]; / 723 / __u8 volume_sequence_number [ISODCL (125, 128)]; / 723 / __u8 logical_block_size [ISODCL (129, 132)]; / 723 / __u8 path_table_size [ISODCL (133, 140)]; / 733 / __u8 type_l_path_table [ISODCL (141, 144)]; / 731 / __u8 opt_type_l_path_table [ISODCL (145, 148)]; / 731 / __u8 type_m_path_table [ISODCL (149, 152)]; / 732 / __u8 opt_type_m_path_table [ISODCL (153, 156)]; / 732 / __u8 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 / __u8 creation_date [ISODCL (814, 830)]; / 8.4.26.1 / __u8 modification_date [ISODCL (831, 847)]; / 8.4.26.1 / __u8 expiration_date [ISODCL (848, 864)]; / 8.4.26.1 / __u8 effective_date [ISODCL (865, 881)]; / 8.4.26.1 / __u8 file_structure_version [ISODCL (882, 882)]; / 711 / __u8 unused4 [ISODCL (883, 883)]; __u8 application_data [ISODCL (884, 1395)]; __u8 unused5 [ISODCL (1396, 2048)]; }; #define HS_STANDARD_ID "CDROM" struct hs_volume_descriptor { __u8 foo [ISODCL ( 1, 8)]; / 733 / __u8 type [ISODCL ( 9, 9)]; / 711 / char id [ISODCL ( 10, 14)]; __u8 version [ISODCL ( 15, 15)]; / 711 / __u8 data[ISODCL(16,2048)]; }; struct hs_primary_descriptor { __u8 foo [ISODCL ( 1, 8)]; / 733 / __u8 type [ISODCL ( 9, 9)]; / 711 / __u8 id [ISODCL ( 10, 14)]; __u8 version [ISODCL ( 15, 15)]; / 711 / __u8 unused1 [ISODCL ( 16, 16)]; / 711 / char system_id [ISODCL ( 17, 48)]; / achars / char volume_id [ISODCL ( 49, 80)]; / dchars / __u8 unused2 [ISODCL ( 81, 88)]; / 733 / __u8 volume_space_size [ISODCL ( 89, 96)]; / 733 / __u8 unused3 [ISODCL ( 97, 128)]; / 733 / __u8 volume_set_size [ISODCL (129, 132)]; / 723 / __u8 volume_sequence_number [ISODCL (133, 136)]; / 723 / __u8 logical_block_size [ISODCL (137, 140)]; / 723 / __u8 path_table_size [ISODCL (141, 148)]; / 733 / __u8 type_l_path_table [ISODCL (149, 152)]; / 731 / __u8 unused4 [ISODCL (153, 180)]; / 733 / __u8 root_directory_record [ISODCL (181, 214)]; / 9.1 / }; / We use this to help us look up the parent inode numbers. / struct iso_path_table{ __u8 name_len[2]; / 721 / __u8 extent[4]; / 731 / __u8 parent[2]; / 721 / char name[0]; } __attribute__((packed)); / 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 { __u8 length [ISODCL (1, 1)]; / 711 / __u8 ext_attr_length [ISODCL (2, 2)]; / 711 / __u8 extent [ISODCL (3, 10)]; / 733 / __u8 size [ISODCL (11, 18)]; / 733 / __u8 date [ISODCL (19, 25)]; / 7 by 711 / __u8 flags [ISODCL (26, 26)]; __u8 file_unit_size [ISODCL (27, 27)]; / 711 / __u8 interleave [ISODCL (28, 28)]; / 711 / __u8 volume_sequence_number [ISODCL (29, 32)]; / 723 / __u8 name_len [ISODCL (33, 33)]; / 711 / char name [0]; } __attribute__((packed)); #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) #endif / _ISOFS_FS_H */ Back

Edit File : iso_fs.h | Size : 6.33 KB

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ISOFS_FS_H
#define _ISOFS_FS_H

#include <linux/types.h>
#include <linux/magic.h>

/*
 * The isofs filesystem constants/structures
 */

/* This part borrowed from the bsd386 isofs */
#define ISODCL(from, to) (to - from + 1)

struct iso_volume_descriptor {
	__u8 type[ISODCL(1,1)]; /* 711 */
	char id[ISODCL(2,6)];
	__u8 version[ISODCL(7,7)];
	__u8 data[ISODCL(8,2048)];
};

/* volume descriptor types */
#define ISO_VD_PRIMARY 1
#define ISO_VD_SUPPLEMENTARY 2
#define ISO_VD_END 255

#define ISO_STANDARD_ID "CD001"

struct iso_primary_descriptor {
	__u8 type			[ISODCL (  1,   1)]; /* 711 */
	char id				[ISODCL (  2,   6)];
	__u8 version			[ISODCL (  7,   7)]; /* 711 */
	__u8 unused1			[ISODCL (  8,   8)];
	char system_id			[ISODCL (  9,  40)]; /* achars */
	char volume_id			[ISODCL ( 41,  72)]; /* dchars */
	__u8 unused2			[ISODCL ( 73,  80)];
	__u8 volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
	__u8 unused3			[ISODCL ( 89, 120)];
	__u8 volume_set_size		[ISODCL (121, 124)]; /* 723 */
	__u8 volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
	__u8 logical_block_size		[ISODCL (129, 132)]; /* 723 */
	__u8 path_table_size		[ISODCL (133, 140)]; /* 733 */
	__u8 type_l_path_table		[ISODCL (141, 144)]; /* 731 */
	__u8 opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
	__u8 type_m_path_table		[ISODCL (149, 152)]; /* 732 */
	__u8 opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
	__u8 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 */
	__u8 creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
	__u8 modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
	__u8 expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
	__u8 effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
	__u8 file_structure_version	[ISODCL (882, 882)]; /* 711 */
	__u8 unused4			[ISODCL (883, 883)];
	__u8 application_data		[ISODCL (884, 1395)];
	__u8 unused5			[ISODCL (1396, 2048)];
};

/* Almost the same as the primary descriptor but two fields are specified */
struct iso_supplementary_descriptor {
	__u8 type			[ISODCL (  1,   1)]; /* 711 */
	char id				[ISODCL (  2,   6)];
	__u8 version			[ISODCL (  7,   7)]; /* 711 */
	__u8 flags			[ISODCL (  8,   8)]; /* 853 */
	char system_id			[ISODCL (  9,  40)]; /* achars */
	char volume_id			[ISODCL ( 41,  72)]; /* dchars */
	__u8 unused2			[ISODCL ( 73,  80)];
	__u8 volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
	__u8 escape			[ISODCL ( 89, 120)]; /* 856 */
	__u8 volume_set_size		[ISODCL (121, 124)]; /* 723 */
	__u8 volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
	__u8 logical_block_size		[ISODCL (129, 132)]; /* 723 */
	__u8 path_table_size		[ISODCL (133, 140)]; /* 733 */
	__u8 type_l_path_table		[ISODCL (141, 144)]; /* 731 */
	__u8 opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
	__u8 type_m_path_table		[ISODCL (149, 152)]; /* 732 */
	__u8 opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
	__u8 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 */
	__u8 creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
	__u8 modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
	__u8 expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
	__u8 effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
	__u8 file_structure_version	[ISODCL (882, 882)]; /* 711 */
	__u8 unused4			[ISODCL (883, 883)];
	__u8 application_data		[ISODCL (884, 1395)];
	__u8 unused5			[ISODCL (1396, 2048)];
};

#define HS_STANDARD_ID "CDROM"

struct  hs_volume_descriptor {
	__u8 foo			[ISODCL (  1,   8)]; /* 733 */
	__u8 type			[ISODCL (  9,   9)]; /* 711 */
	char id				[ISODCL ( 10,  14)];
	__u8 version			[ISODCL ( 15,  15)]; /* 711 */
	__u8 data[ISODCL(16,2048)];
};

struct hs_primary_descriptor {
	__u8 foo			[ISODCL (  1,   8)]; /* 733 */
	__u8 type			[ISODCL (  9,   9)]; /* 711 */
	__u8 id				[ISODCL ( 10,  14)];
	__u8 version			[ISODCL ( 15,  15)]; /* 711 */
	__u8 unused1			[ISODCL ( 16,  16)]; /* 711 */
	char system_id			[ISODCL ( 17,  48)]; /* achars */
	char volume_id			[ISODCL ( 49,  80)]; /* dchars */
	__u8 unused2			[ISODCL ( 81,  88)]; /* 733 */
	__u8 volume_space_size		[ISODCL ( 89,  96)]; /* 733 */
	__u8 unused3			[ISODCL ( 97, 128)]; /* 733 */
	__u8 volume_set_size		[ISODCL (129, 132)]; /* 723 */
	__u8 volume_sequence_number	[ISODCL (133, 136)]; /* 723 */
	__u8 logical_block_size		[ISODCL (137, 140)]; /* 723 */
	__u8 path_table_size		[ISODCL (141, 148)]; /* 733 */
	__u8 type_l_path_table		[ISODCL (149, 152)]; /* 731 */
	__u8 unused4			[ISODCL (153, 180)]; /* 733 */
	__u8 root_directory_record	[ISODCL (181, 214)]; /* 9.1 */
};

/* We use this to help us look up the parent inode numbers. */

struct iso_path_table{
	__u8  name_len[2];	/* 721 */
	__u8  extent[4];	/* 731 */
	__u8  parent[2];	/* 721 */
	char name[0];
} __attribute__((packed));

/* 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 {
	__u8 length			[ISODCL (1, 1)]; /* 711 */
	__u8 ext_attr_length		[ISODCL (2, 2)]; /* 711 */
	__u8 extent			[ISODCL (3, 10)]; /* 733 */
	__u8 size			[ISODCL (11, 18)]; /* 733 */
	__u8 date			[ISODCL (19, 25)]; /* 7 by 711 */
	__u8 flags			[ISODCL (26, 26)];
	__u8 file_unit_size		[ISODCL (27, 27)]; /* 711 */
	__u8 interleave			[ISODCL (28, 28)]; /* 711 */
	__u8 volume_sequence_number	[ISODCL (29, 32)]; /* 723 */
	__u8 name_len			[ISODCL (33, 33)]; /* 711 */
	char name			[0];
} __attribute__((packed));

#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)

#endif /* _ISOFS_FS_H */

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