1 #ifndef __LINUX_UDF_SB_H 2 #define __LINUX_UDF_SB_H 3 4 #include <linux/mutex.h> 5 6 /* Since UDF 2.01 is ISO 13346 based... */ 7 #define UDF_SUPER_MAGIC 0x15013346 8 9 #define UDF_MAX_READ_VERSION 0x0250 10 #define UDF_MAX_WRITE_VERSION 0x0201 11 12 #define UDF_FLAG_USE_EXTENDED_FE 0 13 #define UDF_VERS_USE_EXTENDED_FE 0x0200 14 #define UDF_FLAG_USE_STREAMS 1 15 #define UDF_VERS_USE_STREAMS 0x0200 16 #define UDF_FLAG_USE_SHORT_AD 2 17 #define UDF_FLAG_USE_AD_IN_ICB 3 18 #define UDF_FLAG_USE_FILE_CTIME_EA 4 19 #define UDF_FLAG_STRICT 5 20 #define UDF_FLAG_UNDELETE 6 21 #define UDF_FLAG_UNHIDE 7 22 #define UDF_FLAG_VARCONV 8 23 #define UDF_FLAG_NLS_MAP 9 24 #define UDF_FLAG_UTF8 10 25 #define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */ 26 #define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */ 27 #define UDF_FLAG_GID_FORGET 13 28 #define UDF_FLAG_GID_IGNORE 14 29 #define UDF_FLAG_UID_SET 15 30 #define UDF_FLAG_GID_SET 16 31 #define UDF_FLAG_SESSION_SET 17 32 #define UDF_FLAG_LASTBLOCK_SET 18 33 #define UDF_FLAG_BLOCKSIZE_SET 19 34 35 #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001 36 #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002 37 #define UDF_PART_FLAG_FREED_BITMAP 0x0004 38 #define UDF_PART_FLAG_FREED_TABLE 0x0008 39 #define UDF_PART_FLAG_READ_ONLY 0x0010 40 #define UDF_PART_FLAG_WRITE_ONCE 0x0020 41 #define UDF_PART_FLAG_REWRITABLE 0x0040 42 #define UDF_PART_FLAG_OVERWRITABLE 0x0080 43 44 #define UDF_MAX_BLOCK_LOADED 8 45 46 #define UDF_TYPE1_MAP15 0x1511U 47 #define UDF_VIRTUAL_MAP15 0x1512U 48 #define UDF_VIRTUAL_MAP20 0x2012U 49 #define UDF_SPARABLE_MAP15 0x1522U 50 #define UDF_METADATA_MAP25 0x2511U 51 52 #define UDF_INVALID_MODE ((mode_t)-1) 53 54 #pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */ 55 56 struct udf_meta_data { 57 __u32 s_meta_file_loc; 58 __u32 s_mirror_file_loc; 59 __u32 s_bitmap_file_loc; 60 __u32 s_alloc_unit_size; 61 __u16 s_align_unit_size; 62 __u8 s_dup_md_flag; 63 struct inode *s_metadata_fe; 64 struct inode *s_mirror_fe; 65 struct inode *s_bitmap_fe; 66 }; 67 68 struct udf_sparing_data { 69 __u16 s_packet_len; 70 struct buffer_head *s_spar_map[4]; 71 }; 72 73 struct udf_virtual_data { 74 __u32 s_num_entries; 75 __u16 s_start_offset; 76 }; 77 78 struct udf_bitmap { 79 __u32 s_extLength; 80 __u32 s_extPosition; 81 __u16 s_nr_groups; 82 struct buffer_head **s_block_bitmap; 83 }; 84 85 struct udf_part_map { 86 union { 87 struct udf_bitmap *s_bitmap; 88 struct inode *s_table; 89 } s_uspace; 90 union { 91 struct udf_bitmap *s_bitmap; 92 struct inode *s_table; 93 } s_fspace; 94 __u32 s_partition_root; 95 __u32 s_partition_len; 96 __u16 s_partition_type; 97 __u16 s_partition_num; 98 union { 99 struct udf_sparing_data s_sparing; 100 struct udf_virtual_data s_virtual; 101 struct udf_meta_data s_metadata; 102 } s_type_specific; 103 __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32); 104 __u16 s_volumeseqnum; 105 __u16 s_partition_flags; 106 }; 107 108 #pragma pack() 109 110 struct udf_sb_info { 111 struct udf_part_map *s_partmaps; 112 __u8 s_volume_ident[32]; 113 114 /* Overall info */ 115 __u16 s_partitions; 116 __u16 s_partition; 117 118 /* Sector headers */ 119 __s32 s_session; 120 __u32 s_anchor; 121 __u32 s_last_block; 122 123 struct buffer_head *s_lvid_bh; 124 125 /* Default permissions */ 126 mode_t s_umask; 127 gid_t s_gid; 128 uid_t s_uid; 129 mode_t s_fmode; 130 mode_t s_dmode; 131 132 /* Root Info */ 133 struct timespec s_record_time; 134 135 /* Fileset Info */ 136 __u16 s_serial_number; 137 138 /* highest UDF revision we have recorded to this media */ 139 __u16 s_udfrev; 140 141 /* Miscellaneous flags */ 142 __u32 s_flags; 143 144 /* Encoding info */ 145 struct nls_table *s_nls_map; 146 147 /* VAT inode */ 148 struct inode *s_vat_inode; 149 150 struct mutex s_alloc_mutex; 151 /* Protected by s_alloc_mutex */ 152 unsigned int s_lvid_dirty; 153 }; 154 155 static inline struct udf_sb_info *UDF_SB(struct super_block *sb) 156 { 157 return sb->s_fs_info; 158 } 159 160 struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi); 161 162 int udf_compute_nr_groups(struct super_block *sb, u32 partition); 163 164 #define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) ) 165 #define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) ) 166 #define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) ) 167 168 #endif /* __LINUX_UDF_SB_H */ 169