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1 | #ifndef _ISOFS_FS_H |
2 | #define _ISOFS_FS_H |
3 | |
4 | #include <linux/types.h> |
5 | #include <linux/magic.h> |
6 | |
7 | /* |
8 | * The isofs filesystem constants/structures |
9 | */ |
10 | |
11 | /* This part borrowed from the bsd386 isofs */ |
12 | #define ISODCL(from, to) (to - from + 1) |
13 | |
14 | struct iso_volume_descriptor { |
15 | char type[ISODCL(1,1)]; /* 711 */ |
16 | char id[ISODCL(2,6)]; |
17 | char version[ISODCL(7,7)]; |
18 | char data[ISODCL(8,2048)]; |
19 | }; |
20 | |
21 | /* volume descriptor types */ |
22 | #define ISO_VD_PRIMARY 1 |
23 | #define ISO_VD_SUPPLEMENTARY 2 |
24 | #define ISO_VD_END 255 |
25 | |
26 | #define ISO_STANDARD_ID "CD001" |
27 | |
28 | struct iso_primary_descriptor { |
29 | char type [ISODCL ( 1, 1)]; /* 711 */ |
30 | char id [ISODCL ( 2, 6)]; |
31 | char version [ISODCL ( 7, 7)]; /* 711 */ |
32 | char unused1 [ISODCL ( 8, 8)]; |
33 | char system_id [ISODCL ( 9, 40)]; /* achars */ |
34 | char volume_id [ISODCL ( 41, 72)]; /* dchars */ |
35 | char unused2 [ISODCL ( 73, 80)]; |
36 | char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ |
37 | char unused3 [ISODCL ( 89, 120)]; |
38 | char volume_set_size [ISODCL (121, 124)]; /* 723 */ |
39 | char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ |
40 | char logical_block_size [ISODCL (129, 132)]; /* 723 */ |
41 | char path_table_size [ISODCL (133, 140)]; /* 733 */ |
42 | char type_l_path_table [ISODCL (141, 144)]; /* 731 */ |
43 | char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ |
44 | char type_m_path_table [ISODCL (149, 152)]; /* 732 */ |
45 | char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ |
46 | char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ |
47 | char volume_set_id [ISODCL (191, 318)]; /* dchars */ |
48 | char publisher_id [ISODCL (319, 446)]; /* achars */ |
49 | char preparer_id [ISODCL (447, 574)]; /* achars */ |
50 | char application_id [ISODCL (575, 702)]; /* achars */ |
51 | char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ |
52 | char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ |
53 | char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ |
54 | char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ |
55 | char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ |
56 | char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ |
57 | char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ |
58 | char file_structure_version [ISODCL (882, 882)]; /* 711 */ |
59 | char unused4 [ISODCL (883, 883)]; |
60 | char application_data [ISODCL (884, 1395)]; |
61 | char unused5 [ISODCL (1396, 2048)]; |
62 | }; |
63 | |
64 | /* Almost the same as the primary descriptor but two fields are specified */ |
65 | struct iso_supplementary_descriptor { |
66 | char type [ISODCL ( 1, 1)]; /* 711 */ |
67 | char id [ISODCL ( 2, 6)]; |
68 | char version [ISODCL ( 7, 7)]; /* 711 */ |
69 | char flags [ISODCL ( 8, 8)]; /* 853 */ |
70 | char system_id [ISODCL ( 9, 40)]; /* achars */ |
71 | char volume_id [ISODCL ( 41, 72)]; /* dchars */ |
72 | char unused2 [ISODCL ( 73, 80)]; |
73 | char volume_space_size [ISODCL ( 81, 88)]; /* 733 */ |
74 | char escape [ISODCL ( 89, 120)]; /* 856 */ |
75 | char volume_set_size [ISODCL (121, 124)]; /* 723 */ |
76 | char volume_sequence_number [ISODCL (125, 128)]; /* 723 */ |
77 | char logical_block_size [ISODCL (129, 132)]; /* 723 */ |
78 | char path_table_size [ISODCL (133, 140)]; /* 733 */ |
79 | char type_l_path_table [ISODCL (141, 144)]; /* 731 */ |
80 | char opt_type_l_path_table [ISODCL (145, 148)]; /* 731 */ |
81 | char type_m_path_table [ISODCL (149, 152)]; /* 732 */ |
82 | char opt_type_m_path_table [ISODCL (153, 156)]; /* 732 */ |
83 | char root_directory_record [ISODCL (157, 190)]; /* 9.1 */ |
84 | char volume_set_id [ISODCL (191, 318)]; /* dchars */ |
85 | char publisher_id [ISODCL (319, 446)]; /* achars */ |
86 | char preparer_id [ISODCL (447, 574)]; /* achars */ |
87 | char application_id [ISODCL (575, 702)]; /* achars */ |
88 | char copyright_file_id [ISODCL (703, 739)]; /* 7.5 dchars */ |
89 | char abstract_file_id [ISODCL (740, 776)]; /* 7.5 dchars */ |
90 | char bibliographic_file_id [ISODCL (777, 813)]; /* 7.5 dchars */ |
91 | char creation_date [ISODCL (814, 830)]; /* 8.4.26.1 */ |
92 | char modification_date [ISODCL (831, 847)]; /* 8.4.26.1 */ |
93 | char expiration_date [ISODCL (848, 864)]; /* 8.4.26.1 */ |
94 | char effective_date [ISODCL (865, 881)]; /* 8.4.26.1 */ |
95 | char file_structure_version [ISODCL (882, 882)]; /* 711 */ |
96 | char unused4 [ISODCL (883, 883)]; |
97 | char application_data [ISODCL (884, 1395)]; |
98 | char unused5 [ISODCL (1396, 2048)]; |
99 | }; |
100 | |
101 | |
102 | #define HS_STANDARD_ID "CDROM" |
103 | |
104 | struct hs_volume_descriptor { |
105 | char foo [ISODCL ( 1, 8)]; /* 733 */ |
106 | char type [ISODCL ( 9, 9)]; /* 711 */ |
107 | char id [ISODCL ( 10, 14)]; |
108 | char version [ISODCL ( 15, 15)]; /* 711 */ |
109 | char data[ISODCL(16,2048)]; |
110 | }; |
111 | |
112 | |
113 | struct hs_primary_descriptor { |
114 | char foo [ISODCL ( 1, 8)]; /* 733 */ |
115 | char type [ISODCL ( 9, 9)]; /* 711 */ |
116 | char id [ISODCL ( 10, 14)]; |
117 | char version [ISODCL ( 15, 15)]; /* 711 */ |
118 | char unused1 [ISODCL ( 16, 16)]; /* 711 */ |
119 | char system_id [ISODCL ( 17, 48)]; /* achars */ |
120 | char volume_id [ISODCL ( 49, 80)]; /* dchars */ |
121 | char unused2 [ISODCL ( 81, 88)]; /* 733 */ |
122 | char volume_space_size [ISODCL ( 89, 96)]; /* 733 */ |
123 | char unused3 [ISODCL ( 97, 128)]; /* 733 */ |
124 | char volume_set_size [ISODCL (129, 132)]; /* 723 */ |
125 | char volume_sequence_number [ISODCL (133, 136)]; /* 723 */ |
126 | char logical_block_size [ISODCL (137, 140)]; /* 723 */ |
127 | char path_table_size [ISODCL (141, 148)]; /* 733 */ |
128 | char type_l_path_table [ISODCL (149, 152)]; /* 731 */ |
129 | char unused4 [ISODCL (153, 180)]; /* 733 */ |
130 | char root_directory_record [ISODCL (181, 214)]; /* 9.1 */ |
131 | }; |
132 | |
133 | /* We use this to help us look up the parent inode numbers. */ |
134 | |
135 | struct iso_path_table{ |
136 | unsigned char name_len[2]; /* 721 */ |
137 | char extent[4]; /* 731 */ |
138 | char parent[2]; /* 721 */ |
139 | char name[0]; |
140 | } __attribute__((packed)); |
141 | |
142 | /* high sierra is identical to iso, except that the date is only 6 bytes, and |
143 | there is an extra reserved byte after the flags */ |
144 | |
145 | struct iso_directory_record { |
146 | char length [ISODCL (1, 1)]; /* 711 */ |
147 | char ext_attr_length [ISODCL (2, 2)]; /* 711 */ |
148 | char extent [ISODCL (3, 10)]; /* 733 */ |
149 | char size [ISODCL (11, 18)]; /* 733 */ |
150 | char date [ISODCL (19, 25)]; /* 7 by 711 */ |
151 | char flags [ISODCL (26, 26)]; |
152 | char file_unit_size [ISODCL (27, 27)]; /* 711 */ |
153 | char interleave [ISODCL (28, 28)]; /* 711 */ |
154 | char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ |
155 | unsigned char name_len [ISODCL (33, 33)]; /* 711 */ |
156 | char name [0]; |
157 | } __attribute__((packed)); |
158 | |
159 | #define ISOFS_BLOCK_BITS 11 |
160 | #define ISOFS_BLOCK_SIZE 2048 |
161 | |
162 | #define ISOFS_BUFFER_SIZE(INODE) ((INODE)->i_sb->s_blocksize) |
163 | #define ISOFS_BUFFER_BITS(INODE) ((INODE)->i_sb->s_blocksize_bits) |
164 | |
165 | #endif /* _ISOFS_FS_H */ |
166 |
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Tags:
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v2.6.34-rc5
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