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 }; 115 116 117 /* super.c */ 118 119 static inline void udf_updated_lvid(struct super_block *sb) 120 { 121 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; 122 123 BUG_ON(!bh); 124 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) 125 bh->b_data)->integrityType != 126 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); 127 UDF_SB(sb)->s_lvid_dirty = 1; 128 } 129 extern u64 lvid_get_unique_id(struct super_block *sb); 130 struct inode *udf_find_metadata_inode_efe(struct super_block *sb, 131 u32 meta_file_loc, u32 partition_num); 132 133 /* namei.c */ 134 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, 135 struct fileIdentDesc *, struct udf_fileident_bh *, 136 uint8_t *, uint8_t *); 137 138 /* file.c */ 139 extern long udf_ioctl(struct file *, unsigned int, unsigned long); 140 /* inode.c */ 141 extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *, 142 bool hidden_inode); 143 static inline struct inode *udf_iget_special(struct super_block *sb, 144 struct kernel_lb_addr *ino) 145 { 146 return __udf_iget(sb, ino, true); 147 } 148 static inline struct inode *udf_iget(struct super_block *sb, 149 struct kernel_lb_addr *ino) 150 { 151 return __udf_iget(sb, ino, false); 152 } 153 extern int udf_expand_file_adinicb(struct inode *); 154 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); 155 extern struct buffer_head *udf_bread(struct inode *, int, int, int *); 156 extern int udf_setsize(struct inode *, loff_t); 157 extern void udf_evict_inode(struct inode *); 158 extern int udf_write_inode(struct inode *, struct writeback_control *wbc); 159 extern long udf_block_map(struct inode *, sector_t); 160 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, 161 struct kernel_lb_addr *, uint32_t *, sector_t *); 162 extern int udf_add_aext(struct inode *, struct extent_position *, 163 struct kernel_lb_addr *, uint32_t, int); 164 extern void udf_write_aext(struct inode *, struct extent_position *, 165 struct kernel_lb_addr *, uint32_t, int); 166 extern int8_t udf_delete_aext(struct inode *, struct extent_position, 167 struct kernel_lb_addr, uint32_t); 168 extern int8_t udf_next_aext(struct inode *, struct extent_position *, 169 struct kernel_lb_addr *, uint32_t *, int); 170 extern int8_t udf_current_aext(struct inode *, struct extent_position *, 171 struct kernel_lb_addr *, uint32_t *, int); 172 173 /* misc.c */ 174 extern struct buffer_head *udf_tgetblk(struct super_block *, int); 175 extern struct buffer_head *udf_tread(struct super_block *, int); 176 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, 177 uint32_t, uint8_t); 178 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, 179 uint8_t); 180 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, 181 uint32_t, uint16_t *); 182 extern struct buffer_head *udf_read_ptagged(struct super_block *, 183 struct kernel_lb_addr *, uint32_t, 184 uint16_t *); 185 extern void udf_update_tag(char *, int); 186 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); 187 188 /* lowlevel.c */ 189 extern unsigned int udf_get_last_session(struct super_block *); 190 extern unsigned long udf_get_last_block(struct super_block *); 191 192 /* partition.c */ 193 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, 194 uint32_t); 195 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, 196 uint32_t); 197 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, 198 uint32_t); 199 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, 200 uint32_t); 201 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, 202 uint32_t); 203 extern int udf_relocate_blocks(struct super_block *, long, long *); 204 205 static inline uint32_t 206 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, 207 uint32_t offset) 208 { 209 return udf_get_pblock(sb, loc->logicalBlockNum, 210 loc->partitionReferenceNum, offset); 211 } 212 213 /* unicode.c */ 214 extern int udf_get_filename(struct super_block *, uint8_t *, int, uint8_t *, 215 int); 216 extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, 217 int); 218 extern int udf_build_ustr(struct ustr *, dstring *, int); 219 extern int udf_CS0toUTF8(struct ustr *, const struct ustr *); 220 221 /* ialloc.c */ 222 extern void udf_free_inode(struct inode *); 223 extern struct inode *udf_new_inode(struct inode *, umode_t); 224 225 /* truncate.c */ 226 extern void udf_truncate_tail_extent(struct inode *); 227 extern void udf_discard_prealloc(struct inode *); 228 extern void udf_truncate_extents(struct inode *); 229 230 /* balloc.c */ 231 extern void udf_free_blocks(struct super_block *, struct inode *, 232 struct kernel_lb_addr *, uint32_t, uint32_t); 233 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, 234 uint32_t, uint32_t); 235 extern int udf_new_block(struct super_block *, struct inode *, uint16_t, 236 uint32_t, int *); 237 238 /* directory.c */ 239 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, 240 struct udf_fileident_bh *, 241 struct fileIdentDesc *, 242 struct extent_position *, 243 struct kernel_lb_addr *, uint32_t *, 244 sector_t *); 245 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, 246 int *offset); 247 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 248 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); 249 250 /* udftime.c */ 251 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, 252 struct timestamp src); 253 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); 254 255 #endif /* __UDF_DECL_H */ 256