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 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 }; 109 110 111 /* super.c */ 112 113 static inline void udf_updated_lvid(struct super_block *sb) 114 { 115 struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; 116 117 BUG_ON(!bh); 118 WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) 119 bh->b_data)->integrityType != 120 cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); 121 UDF_SB(sb)->s_lvid_dirty = 1; 122 } 123 extern u64 lvid_get_unique_id(struct super_block *sb); 124 struct inode *udf_find_metadata_inode_efe(struct super_block *sb, 125 u32 meta_file_loc, u32 partition_num); 126 127 /* namei.c */ 128 extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, 129 struct fileIdentDesc *, struct udf_fileident_bh *, 130 uint8_t *, uint8_t *); 131 132 /* file.c */ 133 extern long udf_ioctl(struct file *, unsigned int, unsigned long); 134 /* inode.c */ 135 extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *, 136 bool hidden_inode); 137 static inline struct inode *udf_iget_special(struct super_block *sb, 138 struct kernel_lb_addr *ino) 139 { 140 return __udf_iget(sb, ino, true); 141 } 142 static inline struct inode *udf_iget(struct super_block *sb, 143 struct kernel_lb_addr *ino) 144 { 145 return __udf_iget(sb, ino, false); 146 } 147 extern int udf_expand_file_adinicb(struct inode *); 148 extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *); 149 extern struct buffer_head *udf_bread(struct inode *, int, int, int *); 150 extern int udf_setsize(struct inode *, loff_t); 151 extern void udf_evict_inode(struct inode *); 152 extern int udf_write_inode(struct inode *, struct writeback_control *wbc); 153 extern long udf_block_map(struct inode *, sector_t); 154 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, 155 struct kernel_lb_addr *, uint32_t *, sector_t *); 156 extern int udf_setup_indirect_aext(struct inode *inode, int block, 157 struct extent_position *epos); 158 extern int __udf_add_aext(struct inode *inode, struct extent_position *epos, 159 struct kernel_lb_addr *eloc, uint32_t elen, int inc); 160 extern int udf_add_aext(struct inode *, struct extent_position *, 161 struct kernel_lb_addr *, uint32_t, int); 162 extern void udf_write_aext(struct inode *, struct extent_position *, 163 struct kernel_lb_addr *, uint32_t, int); 164 extern int8_t udf_delete_aext(struct inode *, struct extent_position, 165 struct kernel_lb_addr, uint32_t); 166 extern int8_t udf_next_aext(struct inode *, struct extent_position *, 167 struct kernel_lb_addr *, uint32_t *, int); 168 extern int8_t udf_current_aext(struct inode *, struct extent_position *, 169 struct kernel_lb_addr *, uint32_t *, int); 170 171 /* misc.c */ 172 extern struct buffer_head *udf_tgetblk(struct super_block *, int); 173 extern struct buffer_head *udf_tread(struct super_block *, int); 174 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, 175 uint32_t, uint8_t); 176 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, 177 uint8_t); 178 extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, 179 uint32_t, uint16_t *); 180 extern struct buffer_head *udf_read_ptagged(struct super_block *, 181 struct kernel_lb_addr *, uint32_t, 182 uint16_t *); 183 extern void udf_update_tag(char *, int); 184 extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); 185 186 /* lowlevel.c */ 187 extern unsigned int udf_get_last_session(struct super_block *); 188 extern unsigned long udf_get_last_block(struct super_block *); 189 190 /* partition.c */ 191 extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, 192 uint32_t); 193 extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, 194 uint32_t); 195 extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, 196 uint32_t); 197 extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, 198 uint32_t); 199 extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, 200 uint32_t); 201 extern int udf_relocate_blocks(struct super_block *, long, long *); 202 203 static inline uint32_t 204 udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, 205 uint32_t offset) 206 { 207 return udf_get_pblock(sb, loc->logicalBlockNum, 208 loc->partitionReferenceNum, offset); 209 } 210 211 /* unicode.c */ 212 extern int udf_get_filename(struct super_block *, const uint8_t *, int, 213 uint8_t *, int); 214 extern int udf_put_filename(struct super_block *, const uint8_t *, int, 215 uint8_t *, int); 216 extern int udf_dstrCS0toUTF8(uint8_t *, int, const uint8_t *, int); 217 218 /* ialloc.c */ 219 extern void udf_free_inode(struct inode *); 220 extern struct inode *udf_new_inode(struct inode *, umode_t); 221 222 /* truncate.c */ 223 extern void udf_truncate_tail_extent(struct inode *); 224 extern void udf_discard_prealloc(struct inode *); 225 extern void udf_truncate_extents(struct inode *); 226 227 /* balloc.c */ 228 extern void udf_free_blocks(struct super_block *, struct inode *, 229 struct kernel_lb_addr *, uint32_t, uint32_t); 230 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, 231 uint32_t, uint32_t); 232 extern int udf_new_block(struct super_block *, struct inode *, uint16_t, 233 uint32_t, int *); 234 235 /* directory.c */ 236 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, 237 struct udf_fileident_bh *, 238 struct fileIdentDesc *, 239 struct extent_position *, 240 struct kernel_lb_addr *, uint32_t *, 241 sector_t *); 242 extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, 243 int *offset); 244 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); 245 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); 246 247 /* udftime.c */ 248 extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest, 249 struct timestamp src); 250 extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src); 251 252 #endif /* __UDF_DECL_H */ 253