1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __UDF_DECL_H 3 #define __UDF_DECL_H 4 5 #define pr_fmt(fmt) "UDF-fs: " fmt 6 7 #include "ecma_167.h" 8 #include "osta_udf.h" 9 10 #include <linux/fs.h> 11 #include <linux/types.h> 12 #include <linux/buffer_head.h> 13 #include <linux/udf_fs_i.h> 14 15 #include "udf_sb.h" 16 #include "udfend.h" 17 #include "udf_i.h" 18 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 254 53 #define UDF_NAME_LEN_CS0 255 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 typedef uint32_t udf_pblk_t; 78 79 struct dentry; 80 struct inode; 81 struct task_struct; 82 struct buffer_head; 83 struct super_block; 84 85 extern const struct export_operations udf_export_ops; 86 extern const struct inode_operations udf_dir_inode_operations; 87 extern const struct file_operations udf_dir_operations; 88 extern const struct inode_operations udf_file_inode_operations; 89 extern const struct file_operations udf_file_operations; 90 extern const struct inode_operations udf_symlink_inode_operations; 91 extern const struct address_space_operations udf_aops; 92 extern const struct address_space_operations udf_adinicb_aops; 93 extern const struct address_space_operations udf_symlink_aops; 94 95 struct udf_fileident_bh { 96 struct buffer_head *sbh; 97 struct buffer_head *ebh; 98 int soffset; 99 int eoffset; 100 }; 101 102 struct udf_vds_record { 103 uint32_t block; 104 uint32_t volDescSeqNum; 105 }; 106 107 struct generic_desc { 108 struct tag descTag; 109 __le32 volDescSeqNum; 110 }; 111 112 113 /* super.c */ 114 115 static inline void udf_updated_lvid(struct super_block *sb) 116 { 117 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; 118 119 BUG_ON(!bh); 120 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) 121 bh->b_data)->integrityType != 122 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); 123 UDF_SB(sb)->s_lvid_dirty = 1; 124 } 125 extern u64 lvid_get_unique_id(struct super_block *sb); 126 struct inode *udf_find_metadata_inode_efe(struct super_block *sb, 127 u32 meta_file_loc, u32 partition_num); 128 129 /* namei.c */ 130 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, 131 struct fileIdentDesc *, struct udf_fileident_bh *, 132 uint8_t *, uint8_t *); 133 134 /* file.c */ 135 extern long udf_ioctl(struct file *, unsigned int, unsigned long); 136 /* inode.c */ 137 extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *, 138 bool hidden_inode); 139 static inline struct inode *udf_iget_special(struct super_block *sb, 140 struct kernel_lb_addr *ino) 141 { 142 return __udf_iget(sb, ino, true); 143 } 144 static inline struct inode *udf_iget(struct super_block *sb, 145 struct kernel_lb_addr *ino) 146 { 147 return __udf_iget(sb, ino, false); 148 } 149 extern int udf_expand_file_adinicb(struct inode *); 150 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, 151 udf_pblk_t *block, int *err); 152 extern struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block, 153 int create, int *err); 154 extern int udf_setsize(struct inode *, loff_t); 155 extern void udf_evict_inode(struct inode *); 156 extern int udf_write_inode(struct inode *, struct writeback_control *wbc); 157 extern udf_pblk_t udf_block_map(struct inode *inode, sector_t block); 158 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, 159 struct kernel_lb_addr *, uint32_t *, sector_t *); 160 extern int udf_setup_indirect_aext(struct inode *inode, udf_pblk_t block, 161 struct extent_position *epos); 162 extern int __udf_add_aext(struct inode *inode, struct extent_position *epos, 163 struct kernel_lb_addr *eloc, uint32_t elen, int inc); 164 extern int udf_add_aext(struct inode *, struct extent_position *, 165 struct kernel_lb_addr *, uint32_t, int); 166 extern void udf_write_aext(struct inode *, struct extent_position *, 167 struct kernel_lb_addr *, uint32_t, int); 168 extern int8_t udf_delete_aext(struct inode *, struct extent_position, 169 struct kernel_lb_addr, uint32_t); 170 extern int8_t udf_next_aext(struct inode *, struct extent_position *, 171 struct kernel_lb_addr *, uint32_t *, int); 172 extern int8_t udf_current_aext(struct inode *, struct extent_position *, 173 struct kernel_lb_addr *, uint32_t *, int); 174 175 /* misc.c */ 176 extern struct buffer_head *udf_tgetblk(struct super_block *sb, 177 udf_pblk_t block); 178 extern struct buffer_head *udf_tread(struct super_block *sb, udf_pblk_t block); 179 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, 180 uint32_t, uint8_t); 181 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, 182 uint8_t); 183 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, 184 uint32_t, uint16_t *); 185 extern struct buffer_head *udf_read_ptagged(struct super_block *, 186 struct kernel_lb_addr *, uint32_t, 187 uint16_t *); 188 extern void udf_update_tag(char *, int); 189 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); 190 191 /* lowlevel.c */ 192 extern unsigned int udf_get_last_session(struct super_block *); 193 extern unsigned long udf_get_last_block(struct super_block *); 194 195 /* partition.c */ 196 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, 197 uint32_t); 198 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, 199 uint32_t); 200 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, 201 uint32_t); 202 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, 203 uint32_t); 204 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, 205 uint32_t); 206 extern int udf_relocate_blocks(struct super_block *, long, long *); 207 208 static inline uint32_t 209 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, 210 uint32_t offset) 211 { 212 return udf_get_pblock(sb, loc->logicalBlockNum, 213 loc->partitionReferenceNum, offset); 214 } 215 216 /* unicode.c */ 217 extern int udf_get_filename(struct super_block *, const uint8_t *, int, 218 uint8_t *, int); 219 extern int udf_put_filename(struct super_block *, const uint8_t *, int, 220 uint8_t *, int); 221 extern int udf_dstrCS0toUTF8(uint8_t *, int, const uint8_t *, int); 222 223 /* ialloc.c */ 224 extern void udf_free_inode(struct inode *); 225 extern struct inode *udf_new_inode(struct inode *, umode_t); 226 227 /* truncate.c */ 228 extern void udf_truncate_tail_extent(struct inode *); 229 extern void udf_discard_prealloc(struct inode *); 230 extern void udf_truncate_extents(struct inode *); 231 232 /* balloc.c */ 233 extern void udf_free_blocks(struct super_block *, struct inode *, 234 struct kernel_lb_addr *, uint32_t, uint32_t); 235 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, 236 uint32_t, uint32_t); 237 extern udf_pblk_t udf_new_block(struct super_block *sb, struct inode *inode, 238 uint16_t partition, uint32_t goal, int *err); 239 240 /* directory.c */ 241 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, 242 struct udf_fileident_bh *, 243 struct fileIdentDesc *, 244 struct extent_position *, 245 struct kernel_lb_addr *, uint32_t *, 246 sector_t *); 247 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, 248 int *offset); 249 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 250 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); 251 252 /* udftime.c */ 253 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, 254 struct timestamp src); 255 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); 256 257 #endif /* __UDF_DECL_H */ 258