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_DEFAULT_PREALLOC_BLOCKS 8 19 20 extern __printf(3, 4) void _udf_err(struct super_block *sb, 21 const char *function, const char *fmt, ...); 22 #define udf_err(sb, fmt, ...) \ 23 _udf_err(sb, __func__, fmt, ##__VA_ARGS__) 24 25 extern __printf(3, 4) void _udf_warn(struct super_block *sb, 26 const char *function, const char *fmt, ...); 27 #define udf_warn(sb, fmt, ...) \ 28 _udf_warn(sb, __func__, fmt, ##__VA_ARGS__) 29 30 #define udf_info(fmt, ...) \ 31 pr_info("INFO " fmt, ##__VA_ARGS__) 32 33 #undef UDFFS_DEBUG 34 35 #ifdef UDFFS_DEBUG 36 #define udf_debug(fmt, ...) \ 37 printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt), \ 38 __FILE__, __LINE__, __func__, ##__VA_ARGS__) 39 #else 40 #define udf_debug(fmt, ...) \ 41 no_printk(fmt, ##__VA_ARGS__) 42 #endif 43 44 #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) ) 45 #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) ) 46 47 #define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF 48 #define UDF_EXTENT_FLAG_MASK 0xC0000000 49 50 #define UDF_NAME_PAD 4 51 #define UDF_NAME_LEN 254 52 #define UDF_NAME_LEN_CS0 255 53 54 static inline size_t udf_file_entry_alloc_offset(struct inode *inode) 55 { 56 struct udf_inode_info *iinfo = UDF_I(inode); 57 if (iinfo->i_use) 58 return sizeof(struct unallocSpaceEntry); 59 else if (iinfo->i_efe) 60 return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr; 61 else 62 return sizeof(struct fileEntry) + iinfo->i_lenEAttr; 63 } 64 65 static inline size_t udf_ext0_offset(struct inode *inode) 66 { 67 if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) 68 return udf_file_entry_alloc_offset(inode); 69 else 70 return 0; 71 } 72 73 /* computes tag checksum */ 74 u8 udf_tag_checksum(const struct tag *t); 75 76 struct dentry; 77 struct inode; 78 struct task_struct; 79 struct buffer_head; 80 struct super_block; 81 82 extern const struct export_operations udf_export_ops; 83 extern const struct inode_operations udf_dir_inode_operations; 84 extern const struct file_operations udf_dir_operations; 85 extern const struct inode_operations udf_file_inode_operations; 86 extern const struct file_operations udf_file_operations; 87 extern const struct inode_operations udf_symlink_inode_operations; 88 extern const struct address_space_operations udf_aops; 89 extern const struct address_space_operations udf_adinicb_aops; 90 extern const struct address_space_operations udf_symlink_aops; 91 92 struct udf_fileident_bh { 93 struct buffer_head *sbh; 94 struct buffer_head *ebh; 95 int soffset; 96 int eoffset; 97 }; 98 99 struct udf_vds_record { 100 uint32_t block; 101 uint32_t volDescSeqNum; 102 }; 103 104 struct generic_desc { 105 struct tag descTag; 106 __le32 volDescSeqNum; 107 }; 108 109 110 /* super.c */ 111 112 static inline void udf_updated_lvid(struct super_block *sb) 113 { 114 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; 115 116 BUG_ON(!bh); 117 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) 118 bh->b_data)->integrityType != 119 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); 120 UDF_SB(sb)->s_lvid_dirty = 1; 121 } 122 extern u64 lvid_get_unique_id(struct super_block *sb); 123 struct inode *udf_find_metadata_inode_efe(struct super_block *sb, 124 u32 meta_file_loc, u32 partition_num); 125 126 /* namei.c */ 127 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, 128 struct fileIdentDesc *, struct udf_fileident_bh *, 129 uint8_t *, uint8_t *); 130 131 /* file.c */ 132 extern long udf_ioctl(struct file *, unsigned int, unsigned long); 133 /* inode.c */ 134 extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *, 135 bool hidden_inode); 136 static inline struct inode *udf_iget_special(struct super_block *sb, 137 struct kernel_lb_addr *ino) 138 { 139 return __udf_iget(sb, ino, true); 140 } 141 static inline struct inode *udf_iget(struct super_block *sb, 142 struct kernel_lb_addr *ino) 143 { 144 return __udf_iget(sb, ino, false); 145 } 146 extern int udf_expand_file_adinicb(struct inode *); 147 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); 148 extern struct buffer_head *udf_bread(struct inode *, int, int, int *); 149 extern int udf_setsize(struct inode *, loff_t); 150 extern void udf_evict_inode(struct inode *); 151 extern int udf_write_inode(struct inode *, struct writeback_control *wbc); 152 extern long udf_block_map(struct inode *, sector_t); 153 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, 154 struct kernel_lb_addr *, uint32_t *, sector_t *); 155 extern int udf_setup_indirect_aext(struct inode *inode, int block, 156 struct extent_position *epos); 157 extern int __udf_add_aext(struct inode *inode, struct extent_position *epos, 158 struct kernel_lb_addr *eloc, uint32_t elen, int inc); 159 extern int udf_add_aext(struct inode *, struct extent_position *, 160 struct kernel_lb_addr *, uint32_t, int); 161 extern void udf_write_aext(struct inode *, struct extent_position *, 162 struct kernel_lb_addr *, uint32_t, int); 163 extern int8_t udf_delete_aext(struct inode *, struct extent_position, 164 struct kernel_lb_addr, uint32_t); 165 extern int8_t udf_next_aext(struct inode *, struct extent_position *, 166 struct kernel_lb_addr *, uint32_t *, int); 167 extern int8_t udf_current_aext(struct inode *, struct extent_position *, 168 struct kernel_lb_addr *, uint32_t *, int); 169 170 /* misc.c */ 171 extern struct buffer_head *udf_tgetblk(struct super_block *, int); 172 extern struct buffer_head *udf_tread(struct super_block *, int); 173 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, 174 uint32_t, uint8_t); 175 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, 176 uint8_t); 177 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, 178 uint32_t, uint16_t *); 179 extern struct buffer_head *udf_read_ptagged(struct super_block *, 180 struct kernel_lb_addr *, uint32_t, 181 uint16_t *); 182 extern void udf_update_tag(char *, int); 183 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); 184 185 /* lowlevel.c */ 186 extern unsigned int udf_get_last_session(struct super_block *); 187 extern unsigned long udf_get_last_block(struct super_block *); 188 189 /* partition.c */ 190 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, 191 uint32_t); 192 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, 193 uint32_t); 194 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, 195 uint32_t); 196 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, 197 uint32_t); 198 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, 199 uint32_t); 200 extern int udf_relocate_blocks(struct super_block *, long, long *); 201 202 static inline uint32_t 203 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, 204 uint32_t offset) 205 { 206 return udf_get_pblock(sb, loc->logicalBlockNum, 207 loc->partitionReferenceNum, offset); 208 } 209 210 /* unicode.c */ 211 extern int udf_get_filename(struct super_block *, const uint8_t *, int, 212 uint8_t *, int); 213 extern int udf_put_filename(struct super_block *, const uint8_t *, int, 214 uint8_t *, int); 215 extern int udf_dstrCS0toUTF8(uint8_t *, int, const uint8_t *, int); 216 217 /* ialloc.c */ 218 extern void udf_free_inode(struct inode *); 219 extern struct inode *udf_new_inode(struct inode *, umode_t); 220 221 /* truncate.c */ 222 extern void udf_truncate_tail_extent(struct inode *); 223 extern void udf_discard_prealloc(struct inode *); 224 extern void udf_truncate_extents(struct inode *); 225 226 /* balloc.c */ 227 extern void udf_free_blocks(struct super_block *, struct inode *, 228 struct kernel_lb_addr *, uint32_t, uint32_t); 229 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, 230 uint32_t, uint32_t); 231 extern int udf_new_block(struct super_block *, struct inode *, uint16_t, 232 uint32_t, int *); 233 234 /* directory.c */ 235 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, 236 struct udf_fileident_bh *, 237 struct fileIdentDesc *, 238 struct extent_position *, 239 struct kernel_lb_addr *, uint32_t *, 240 sector_t *); 241 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, 242 int *offset); 243 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 244 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); 245 246 /* udftime.c */ 247 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, 248 struct timestamp src); 249 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); 250 251 #endif /* __UDF_DECL_H */ 252