1 #ifndef __UDF_DECL_H 2 #define __UDF_DECL_H 3 4 #define pr_fmt(fmt) "UDF-fs: " fmt 5 6 #include "ecma_167.h" 7 #include "osta_udf.h" 8 9 #include <linux/fs.h> 10 #include <linux/types.h> 11 #include <linux/buffer_head.h> 12 #include <linux/udf_fs_i.h> 13 14 #include "udf_sb.h" 15 #include "udfend.h" 16 #include "udf_i.h" 17 18 #define UDF_PREALLOCATE 19 #define UDF_DEFAULT_PREALLOC_BLOCKS 8 20 21 extern __printf(3, 4) void _udf_err(struct super_block *sb, 22 const char *function, const char *fmt, ...); 23 #define udf_err(sb, fmt, ...) \ 24 _udf_err(sb, __func__, fmt, ##__VA_ARGS__) 25 26 extern __printf(3, 4) void _udf_warn(struct super_block *sb, 27 const char *function, const char *fmt, ...); 28 #define udf_warn(sb, fmt, ...) \ 29 _udf_warn(sb, __func__, fmt, ##__VA_ARGS__) 30 31 #define udf_info(fmt, ...) \ 32 pr_info("INFO " fmt, ##__VA_ARGS__) 33 34 #undef UDFFS_DEBUG 35 36 #ifdef UDFFS_DEBUG 37 #define udf_debug(fmt, ...) \ 38 printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt), \ 39 __FILE__, __LINE__, __func__, ##__VA_ARGS__) 40 #else 41 #define udf_debug(fmt, ...) \ 42 no_printk(fmt, ##__VA_ARGS__) 43 #endif 44 45 #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) ) 46 #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) ) 47 48 #define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF 49 #define UDF_EXTENT_FLAG_MASK 0xC0000000 50 51 #define UDF_NAME_PAD 4 52 #define UDF_NAME_LEN 256 53 #define UDF_PATH_LEN 1023 54 55 static inline size_t udf_file_entry_alloc_offset(struct inode *inode) 56 { 57 struct udf_inode_info *iinfo = UDF_I(inode); 58 if (iinfo->i_use) 59 return sizeof(struct unallocSpaceEntry); 60 else if (iinfo->i_efe) 61 return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr; 62 else 63 return sizeof(struct fileEntry) + iinfo->i_lenEAttr; 64 } 65 66 static inline size_t udf_ext0_offset(struct inode *inode) 67 { 68 if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) 69 return udf_file_entry_alloc_offset(inode); 70 else 71 return 0; 72 } 73 74 /* computes tag checksum */ 75 u8 udf_tag_checksum(const struct tag *t); 76 77 struct dentry; 78 struct inode; 79 struct task_struct; 80 struct buffer_head; 81 struct super_block; 82 83 extern const struct export_operations udf_export_ops; 84 extern const struct inode_operations udf_dir_inode_operations; 85 extern const struct file_operations udf_dir_operations; 86 extern const struct inode_operations udf_file_inode_operations; 87 extern const struct file_operations udf_file_operations; 88 extern const struct inode_operations udf_symlink_inode_operations; 89 extern const struct address_space_operations udf_aops; 90 extern const struct address_space_operations udf_adinicb_aops; 91 extern const struct address_space_operations udf_symlink_aops; 92 93 struct udf_fileident_bh { 94 struct buffer_head *sbh; 95 struct buffer_head *ebh; 96 int soffset; 97 int eoffset; 98 }; 99 100 struct udf_vds_record { 101 uint32_t block; 102 uint32_t volDescSeqNum; 103 }; 104 105 struct generic_desc { 106 struct tag descTag; 107 __le32 volDescSeqNum; 108 }; 109 110 struct ustr { 111 uint8_t u_cmpID; 112 uint8_t u_name[UDF_NAME_LEN - 2]; 113 uint8_t u_len; 114 }; 115 116 struct extent_position { 117 struct buffer_head *bh; 118 uint32_t offset; 119 struct kernel_lb_addr block; 120 }; 121 122 /* super.c */ 123 124 static inline void udf_updated_lvid(struct super_block *sb) 125 { 126 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; 127 128 BUG_ON(!bh); 129 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) 130 bh->b_data)->integrityType != 131 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); 132 sb->s_dirt = 1; 133 UDF_SB(sb)->s_lvid_dirty = 1; 134 } 135 extern u64 lvid_get_unique_id(struct super_block *sb); 136 struct inode *udf_find_metadata_inode_efe(struct super_block *sb, 137 u32 meta_file_loc, u32 partition_num); 138 139 /* namei.c */ 140 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, 141 struct fileIdentDesc *, struct udf_fileident_bh *, 142 uint8_t *, uint8_t *); 143 144 /* file.c */ 145 extern long udf_ioctl(struct file *, unsigned int, unsigned long); 146 /* inode.c */ 147 extern struct inode *udf_iget(struct super_block *, struct kernel_lb_addr *); 148 extern int udf_expand_file_adinicb(struct inode *); 149 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); 150 extern struct buffer_head *udf_bread(struct inode *, int, int, int *); 151 extern int udf_setsize(struct inode *, loff_t); 152 extern void udf_read_inode(struct inode *); 153 extern void udf_evict_inode(struct inode *); 154 extern int udf_write_inode(struct inode *, struct writeback_control *wbc); 155 extern long udf_block_map(struct inode *, sector_t); 156 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, 157 struct kernel_lb_addr *, uint32_t *, sector_t *); 158 extern int udf_add_aext(struct inode *, struct extent_position *, 159 struct kernel_lb_addr *, uint32_t, int); 160 extern void udf_write_aext(struct inode *, struct extent_position *, 161 struct kernel_lb_addr *, uint32_t, int); 162 extern int8_t udf_delete_aext(struct inode *, struct extent_position, 163 struct kernel_lb_addr, uint32_t); 164 extern int8_t udf_next_aext(struct inode *, struct extent_position *, 165 struct kernel_lb_addr *, uint32_t *, int); 166 extern int8_t udf_current_aext(struct inode *, struct extent_position *, 167 struct kernel_lb_addr *, uint32_t *, int); 168 169 /* misc.c */ 170 extern struct buffer_head *udf_tgetblk(struct super_block *, int); 171 extern struct buffer_head *udf_tread(struct super_block *, int); 172 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, 173 uint32_t, uint8_t); 174 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, 175 uint8_t); 176 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, 177 uint32_t, uint16_t *); 178 extern struct buffer_head *udf_read_ptagged(struct super_block *, 179 struct kernel_lb_addr *, uint32_t, 180 uint16_t *); 181 extern void udf_update_tag(char *, int); 182 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); 183 184 /* lowlevel.c */ 185 extern unsigned int udf_get_last_session(struct super_block *); 186 extern unsigned long udf_get_last_block(struct super_block *); 187 188 /* partition.c */ 189 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, 190 uint32_t); 191 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, 192 uint32_t); 193 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, 194 uint32_t); 195 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, 196 uint32_t); 197 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, 198 uint32_t); 199 extern int udf_relocate_blocks(struct super_block *, long, long *); 200 201 static inline uint32_t 202 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, 203 uint32_t offset) 204 { 205 return udf_get_pblock(sb, loc->logicalBlockNum, 206 loc->partitionReferenceNum, offset); 207 } 208 209 /* unicode.c */ 210 extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int); 211 extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, 212 int); 213 extern int udf_build_ustr(struct ustr *, dstring *, int); 214 extern int udf_CS0toUTF8(struct ustr *, const struct ustr *); 215 216 /* ialloc.c */ 217 extern void udf_free_inode(struct inode *); 218 extern struct inode *udf_new_inode(struct inode *, umode_t, int *); 219 220 /* truncate.c */ 221 extern void udf_truncate_tail_extent(struct inode *); 222 extern void udf_discard_prealloc(struct inode *); 223 extern void udf_truncate_extents(struct inode *); 224 225 /* balloc.c */ 226 extern void udf_free_blocks(struct super_block *, struct inode *, 227 struct kernel_lb_addr *, uint32_t, uint32_t); 228 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, 229 uint32_t, uint32_t); 230 extern int udf_new_block(struct super_block *, struct inode *, uint16_t, 231 uint32_t, int *); 232 233 /* directory.c */ 234 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, 235 struct udf_fileident_bh *, 236 struct fileIdentDesc *, 237 struct extent_position *, 238 struct kernel_lb_addr *, uint32_t *, 239 sector_t *); 240 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, 241 int *offset); 242 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 243 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); 244 245 /* udftime.c */ 246 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, 247 struct timestamp src); 248 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); 249 250 #endif /* __UDF_DECL_H */ 251