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 34 #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001 35 #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002 36 #define UDF_PART_FLAG_FREED_BITMAP 0x0004 37 #define UDF_PART_FLAG_FREED_TABLE 0x0008 38 #define UDF_PART_FLAG_READ_ONLY 0x0010 39 #define UDF_PART_FLAG_WRITE_ONCE 0x0020 40 #define UDF_PART_FLAG_REWRITABLE 0x0040 41 #define UDF_PART_FLAG_OVERWRITABLE 0x0080 42 43 #define UDF_MAX_BLOCK_LOADED 8 44 45 #define UDF_TYPE1_MAP15 0x1511U 46 #define UDF_VIRTUAL_MAP15 0x1512U 47 #define UDF_VIRTUAL_MAP20 0x2012U 48 #define UDF_SPARABLE_MAP15 0x1522U 49 #define UDF_METADATA_MAP25 0x2511U 50 51 #pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */ 52 53 struct udf_meta_data { 54 __u32 s_meta_file_loc; 55 __u32 s_mirror_file_loc; 56 __u32 s_bitmap_file_loc; 57 __u32 s_alloc_unit_size; 58 __u16 s_align_unit_size; 59 __u8 s_dup_md_flag; 60 struct inode *s_metadata_fe; 61 struct inode *s_mirror_fe; 62 struct inode *s_bitmap_fe; 63 }; 64 65 struct udf_sparing_data { 66 __u16 s_packet_len; 67 struct buffer_head *s_spar_map[4]; 68 }; 69 70 struct udf_virtual_data { 71 __u32 s_num_entries; 72 __u16 s_start_offset; 73 }; 74 75 struct udf_bitmap { 76 __u32 s_extLength; 77 __u32 s_extPosition; 78 __u16 s_nr_groups; 79 struct buffer_head **s_block_bitmap; 80 }; 81 82 struct udf_part_map { 83 union { 84 struct udf_bitmap *s_bitmap; 85 struct inode *s_table; 86 } s_uspace; 87 union { 88 struct udf_bitmap *s_bitmap; 89 struct inode *s_table; 90 } s_fspace; 91 __u32 s_partition_root; 92 __u32 s_partition_len; 93 __u16 s_partition_type; 94 __u16 s_partition_num; 95 union { 96 struct udf_sparing_data s_sparing; 97 struct udf_virtual_data s_virtual; 98 struct udf_meta_data s_metadata; 99 } s_type_specific; 100 __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32); 101 __u16 s_volumeseqnum; 102 __u16 s_partition_flags; 103 }; 104 105 #pragma pack() 106 107 struct udf_sb_info { 108 struct udf_part_map *s_partmaps; 109 __u8 s_volume_ident[32]; 110 111 /* Overall info */ 112 __u16 s_partitions; 113 __u16 s_partition; 114 115 /* Sector headers */ 116 __s32 s_session; 117 __u32 s_anchor[3]; 118 __u32 s_last_block; 119 120 struct buffer_head *s_lvid_bh; 121 122 /* Default permissions */ 123 mode_t s_umask; 124 gid_t s_gid; 125 uid_t s_uid; 126 127 /* Root Info */ 128 struct timespec s_record_time; 129 130 /* Fileset Info */ 131 __u16 s_serial_number; 132 133 /* highest UDF revision we have recorded to this media */ 134 __u16 s_udfrev; 135 136 /* Miscellaneous flags */ 137 __u32 s_flags; 138 139 /* Encoding info */ 140 struct nls_table *s_nls_map; 141 142 /* VAT inode */ 143 struct inode *s_vat_inode; 144 145 struct mutex s_alloc_mutex; 146 }; 147 UDF_SB(struct super_block * sb)148 static inline struct udf_sb_info *UDF_SB(struct super_block *sb) 149 { 150 return sb->s_fs_info; 151 } 152 153 struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi); 154 155 int udf_compute_nr_groups(struct super_block *sb, u32 partition); 156 157 #define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) ) 158 #define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) ) 159 #define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) ) 160 161 #endif /* __LINUX_UDF_SB_H */ 162