1 #ifndef __LINUX_UDF_SB_H 2 #define __LINUX_UDF_SB_H 3 4 #include <linux/mutex.h> 5 #include <linux/bitops.h> 6 7 /* Since UDF 2.01 is ISO 13346 based... */ 8 #define UDF_SUPER_MAGIC 0x15013346 9 10 #define UDF_MAX_READ_VERSION 0x0250 11 #define UDF_MAX_WRITE_VERSION 0x0201 12 13 #define UDF_FLAG_USE_EXTENDED_FE 0 14 #define UDF_VERS_USE_EXTENDED_FE 0x0200 15 #define UDF_FLAG_USE_STREAMS 1 16 #define UDF_VERS_USE_STREAMS 0x0200 17 #define UDF_FLAG_USE_SHORT_AD 2 18 #define UDF_FLAG_USE_AD_IN_ICB 3 19 #define UDF_FLAG_USE_FILE_CTIME_EA 4 20 #define UDF_FLAG_STRICT 5 21 #define UDF_FLAG_UNDELETE 6 22 #define UDF_FLAG_UNHIDE 7 23 #define UDF_FLAG_VARCONV 8 24 #define UDF_FLAG_NLS_MAP 9 25 #define UDF_FLAG_UTF8 10 26 #define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */ 27 #define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */ 28 #define UDF_FLAG_GID_FORGET 13 29 #define UDF_FLAG_GID_IGNORE 14 30 #define UDF_FLAG_UID_SET 15 31 #define UDF_FLAG_GID_SET 16 32 #define UDF_FLAG_SESSION_SET 17 33 #define UDF_FLAG_LASTBLOCK_SET 18 34 #define UDF_FLAG_BLOCKSIZE_SET 19 35 36 #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001 37 #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002 38 #define UDF_PART_FLAG_FREED_BITMAP 0x0004 39 #define UDF_PART_FLAG_FREED_TABLE 0x0008 40 #define UDF_PART_FLAG_READ_ONLY 0x0010 41 #define UDF_PART_FLAG_WRITE_ONCE 0x0020 42 #define UDF_PART_FLAG_REWRITABLE 0x0040 43 #define UDF_PART_FLAG_OVERWRITABLE 0x0080 44 45 #define UDF_MAX_BLOCK_LOADED 8 46 47 #define UDF_TYPE1_MAP15 0x1511U 48 #define UDF_VIRTUAL_MAP15 0x1512U 49 #define UDF_VIRTUAL_MAP20 0x2012U 50 #define UDF_SPARABLE_MAP15 0x1522U 51 #define UDF_METADATA_MAP25 0x2511U 52 53 #define UDF_INVALID_MODE ((umode_t)-1) 54 55 #pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */ 56 57 #define MF_DUPLICATE_MD 0x01 58 #define MF_MIRROR_FE_LOADED 0x02 59 60 struct udf_meta_data { 61 __u32 s_meta_file_loc; 62 __u32 s_mirror_file_loc; 63 __u32 s_bitmap_file_loc; 64 __u32 s_alloc_unit_size; 65 __u16 s_align_unit_size; 66 int s_flags; 67 struct inode *s_metadata_fe; 68 struct inode *s_mirror_fe; 69 struct inode *s_bitmap_fe; 70 }; 71 72 struct udf_sparing_data { 73 __u16 s_packet_len; 74 struct buffer_head *s_spar_map[4]; 75 }; 76 77 struct udf_virtual_data { 78 __u32 s_num_entries; 79 __u16 s_start_offset; 80 }; 81 82 struct udf_bitmap { 83 __u32 s_extLength; 84 __u32 s_extPosition; 85 __u16 s_nr_groups; 86 struct buffer_head **s_block_bitmap; 87 }; 88 89 struct udf_part_map { 90 union { 91 struct udf_bitmap *s_bitmap; 92 struct inode *s_table; 93 } s_uspace; 94 union { 95 struct udf_bitmap *s_bitmap; 96 struct inode *s_table; 97 } s_fspace; 98 __u32 s_partition_root; 99 __u32 s_partition_len; 100 __u16 s_partition_type; 101 __u16 s_partition_num; 102 union { 103 struct udf_sparing_data s_sparing; 104 struct udf_virtual_data s_virtual; 105 struct udf_meta_data s_metadata; 106 } s_type_specific; 107 __u32 (*s_partition_func)(struct super_block *, __u32, __u16, __u32); 108 __u16 s_volumeseqnum; 109 __u16 s_partition_flags; 110 }; 111 112 #pragma pack() 113 114 struct udf_sb_info { 115 struct udf_part_map *s_partmaps; 116 __u8 s_volume_ident[32]; 117 118 /* Overall info */ 119 __u16 s_partitions; 120 __u16 s_partition; 121 122 /* Sector headers */ 123 __s32 s_session; 124 __u32 s_anchor; 125 __u32 s_last_block; 126 127 struct buffer_head *s_lvid_bh; 128 129 /* Default permissions */ 130 umode_t s_umask; 131 gid_t s_gid; 132 uid_t s_uid; 133 umode_t s_fmode; 134 umode_t s_dmode; 135 /* Lock protecting consistency of above permission settings */ 136 rwlock_t s_cred_lock; 137 138 /* Root Info */ 139 struct timespec s_record_time; 140 141 /* Fileset Info */ 142 __u16 s_serial_number; 143 144 /* highest UDF revision we have recorded to this media */ 145 __u16 s_udfrev; 146 147 /* Miscellaneous flags */ 148 unsigned long s_flags; 149 150 /* Encoding info */ 151 struct nls_table *s_nls_map; 152 153 /* VAT inode */ 154 struct inode *s_vat_inode; 155 156 struct mutex s_alloc_mutex; 157 /* Protected by s_alloc_mutex */ 158 unsigned int s_lvid_dirty; 159 }; 160 161 static inline struct udf_sb_info *UDF_SB(struct super_block *sb) 162 { 163 return sb->s_fs_info; 164 } 165 166 struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi); 167 168 int udf_compute_nr_groups(struct super_block *sb, u32 partition); 169 170 static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag) 171 { 172 return test_bit(flag, &UDF_SB(sb)->s_flags); 173 } 174 175 static inline void UDF_SET_FLAG(struct super_block *sb, int flag) 176 { 177 set_bit(flag, &UDF_SB(sb)->s_flags); 178 } 179 180 static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag) 181 { 182 clear_bit(flag, &UDF_SB(sb)->s_flags); 183 } 184 185 #endif /* __LINUX_UDF_SB_H */ 186