| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * udf_fs_sb.h |
| 3 | * |
| 4 | * This include file is for the Linux kernel/module. |
| 5 | * |
| 6 | * CONTACTS |
| 7 | * E-mail regarding any portion of the Linux UDF file system should be |
| 8 | * directed to the development team mailing list (run by majordomo): |
| 9 | * linux_udf@hpesjro.fc.hp.com |
| 10 | * |
| 11 | * COPYRIGHT |
| 12 | * This file is distributed under the terms of the GNU General Public |
| 13 | * License (GPL). Copies of the GPL can be obtained from: |
| 14 | * ftp://prep.ai.mit.edu/pub/gnu/GPL |
| 15 | * Each contributing author retains all rights to their own work. |
| 16 | */ |
| 17 | |
| 18 | #ifndef _UDF_FS_SB_H |
| 19 | #define _UDF_FS_SB_H 1 |
| 20 | |
| 21 | #include <asm/semaphore.h> |
| 22 | |
| 23 | #pragma pack(1) |
| 24 | |
| 25 | #define UDF_MAX_BLOCK_LOADED 8 |
| 26 | |
| 27 | #define UDF_TYPE1_MAP15 0x1511U |
| 28 | #define UDF_VIRTUAL_MAP15 0x1512U |
| 29 | #define UDF_VIRTUAL_MAP20 0x2012U |
| 30 | #define UDF_SPARABLE_MAP15 0x1522U |
| 31 | |
| 32 | struct udf_sparing_data |
| 33 | { |
| 34 | __u16 s_packet_len; |
| 35 | struct buffer_head *s_spar_map[4]; |
| 36 | }; |
| 37 | |
| 38 | struct udf_virtual_data |
| 39 | { |
| 40 | __u32 s_num_entries; |
| 41 | __u16 s_start_offset; |
| 42 | }; |
| 43 | |
| 44 | struct udf_bitmap |
| 45 | { |
| 46 | __u32 s_extLength; |
| 47 | __u32 s_extPosition; |
| 48 | __u16 s_nr_groups; |
| 49 | struct buffer_head **s_block_bitmap; |
| 50 | }; |
| 51 | |
| 52 | struct udf_part_map |
| 53 | { |
| 54 | union |
| 55 | { |
| 56 | struct udf_bitmap *s_bitmap; |
| 57 | struct inode *s_table; |
| 58 | } s_uspace; |
| 59 | union |
| 60 | { |
| 61 | struct udf_bitmap *s_bitmap; |
| 62 | struct inode *s_table; |
| 63 | } s_fspace; |
| 64 | __u32 s_partition_root; |
| 65 | __u32 s_partition_len; |
| 66 | __u16 s_partition_type; |
| 67 | __u16 s_partition_num; |
| 68 | union |
| 69 | { |
| 70 | struct udf_sparing_data s_sparing; |
| 71 | struct udf_virtual_data s_virtual; |
| 72 | } s_type_specific; |
| 73 | __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32); |
| 74 | __u16 s_volumeseqnum; |
| 75 | __u16 s_partition_flags; |
| 76 | }; |
| 77 | |
| 78 | #pragma pack() |
| 79 | |
| 80 | struct udf_sb_info |
| 81 | { |
| 82 | struct udf_part_map *s_partmaps; |
| 83 | __u8 s_volident[32]; |
| 84 | |
| 85 | /* Overall info */ |
| 86 | __u16 s_partitions; |
| 87 | __u16 s_partition; |
| 88 | |
| 89 | /* Sector headers */ |
| 90 | __s32 s_session; |
| 91 | __u32 s_anchor[4]; |
| 92 | __u32 s_lastblock; |
| 93 | |
| 94 | struct buffer_head *s_lvidbh; |
| 95 | |
| 96 | /* Default permissions */ |
| 97 | mode_t s_umask; |
| 98 | gid_t s_gid; |
| 99 | uid_t s_uid; |
| 100 | |
| 101 | /* Root Info */ |
| 102 | struct timespec s_recordtime; |
| 103 | |
| 104 | /* Fileset Info */ |
| 105 | __u16 s_serialnum; |
| 106 | |
| 107 | /* highest UDF revision we have recorded to this media */ |
| 108 | __u16 s_udfrev; |
| 109 | |
| 110 | /* Miscellaneous flags */ |
| 111 | __u32 s_flags; |
| 112 | |
| 113 | /* Encoding info */ |
| 114 | struct nls_table *s_nls_map; |
| 115 | |
| 116 | /* VAT inode */ |
| 117 | struct inode *s_vat; |
| 118 | |
| 119 | struct semaphore s_alloc_sem; |
| 120 | }; |
| 121 | |
| 122 | #endif /* _UDF_FS_SB_H */ |