udfdecl.h 8.8 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __UDF_DECL_H
  3. #define __UDF_DECL_H
  4. #define pr_fmt(fmt) "UDF-fs: " fmt
  5. #include "ecma_167.h"
  6. #include "osta_udf.h"
  7. #include <linux/fs.h>
  8. #include <linux/types.h>
  9. #include <linux/buffer_head.h>
  10. #include <linux/udf_fs_i.h>
  11. #include "udf_sb.h"
  12. #include "udfend.h"
  13. #include "udf_i.h"
  14. #define UDF_DEFAULT_PREALLOC_BLOCKS 8
  15. extern __printf(3, 4) void _udf_err(struct super_block *sb,
  16. const char *function, const char *fmt, ...);
  17. #define udf_err(sb, fmt, ...) \
  18. _udf_err(sb, __func__, fmt, ##__VA_ARGS__)
  19. extern __printf(3, 4) void _udf_warn(struct super_block *sb,
  20. const char *function, const char *fmt, ...);
  21. #define udf_warn(sb, fmt, ...) \
  22. _udf_warn(sb, __func__, fmt, ##__VA_ARGS__)
  23. #define udf_info(fmt, ...) \
  24. pr_info("INFO " fmt, ##__VA_ARGS__)
  25. #define udf_debug(fmt, ...) \
  26. pr_debug("%s:%d:%s: " fmt, __FILE__, __LINE__, __func__, ##__VA_ARGS__)
  27. #define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
  28. #define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
  29. #define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
  30. #define UDF_EXTENT_FLAG_MASK 0xC0000000
  31. #define UDF_INVALID_ID ((uint32_t)-1)
  32. #define UDF_NAME_PAD 4
  33. #define UDF_NAME_LEN 254
  34. #define UDF_NAME_LEN_CS0 255
  35. static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
  36. {
  37. struct udf_inode_info *iinfo = UDF_I(inode);
  38. if (iinfo->i_use)
  39. return sizeof(struct unallocSpaceEntry);
  40. else if (iinfo->i_efe)
  41. return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
  42. else
  43. return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
  44. }
  45. static inline size_t udf_ext0_offset(struct inode *inode)
  46. {
  47. if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
  48. return udf_file_entry_alloc_offset(inode);
  49. else
  50. return 0;
  51. }
  52. /* computes tag checksum */
  53. u8 udf_tag_checksum(const struct tag *t);
  54. typedef uint32_t udf_pblk_t;
  55. struct dentry;
  56. struct inode;
  57. struct task_struct;
  58. struct buffer_head;
  59. struct super_block;
  60. extern const struct export_operations udf_export_ops;
  61. extern const struct inode_operations udf_dir_inode_operations;
  62. extern const struct file_operations udf_dir_operations;
  63. extern const struct inode_operations udf_file_inode_operations;
  64. extern const struct file_operations udf_file_operations;
  65. extern const struct inode_operations udf_symlink_inode_operations;
  66. extern const struct address_space_operations udf_aops;
  67. extern const struct address_space_operations udf_adinicb_aops;
  68. extern const struct address_space_operations udf_symlink_aops;
  69. struct udf_fileident_bh {
  70. struct buffer_head *sbh;
  71. struct buffer_head *ebh;
  72. int soffset;
  73. int eoffset;
  74. };
  75. struct udf_vds_record {
  76. uint32_t block;
  77. uint32_t volDescSeqNum;
  78. };
  79. struct generic_desc {
  80. struct tag descTag;
  81. __le32 volDescSeqNum;
  82. };
  83. /* super.c */
  84. static inline void udf_updated_lvid(struct super_block *sb)
  85. {
  86. struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
  87. BUG_ON(!bh);
  88. WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
  89. bh->b_data)->integrityType !=
  90. cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
  91. UDF_SB(sb)->s_lvid_dirty = 1;
  92. }
  93. extern u64 lvid_get_unique_id(struct super_block *sb);
  94. struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
  95. u32 meta_file_loc, u32 partition_num);
  96. /* namei.c */
  97. extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
  98. struct fileIdentDesc *, struct udf_fileident_bh *,
  99. uint8_t *, uint8_t *);
  100. static inline unsigned int udf_dir_entry_len(struct fileIdentDesc *cfi)
  101. {
  102. return ALIGN(sizeof(struct fileIdentDesc) +
  103. le16_to_cpu(cfi->lengthOfImpUse) + cfi->lengthFileIdent,
  104. UDF_NAME_PAD);
  105. }
  106. /* file.c */
  107. extern long udf_ioctl(struct file *, unsigned int, unsigned long);
  108. /* inode.c */
  109. extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,
  110. bool hidden_inode);
  111. static inline struct inode *udf_iget_special(struct super_block *sb,
  112. struct kernel_lb_addr *ino)
  113. {
  114. return __udf_iget(sb, ino, true);
  115. }
  116. static inline struct inode *udf_iget(struct super_block *sb,
  117. struct kernel_lb_addr *ino)
  118. {
  119. return __udf_iget(sb, ino, false);
  120. }
  121. extern int udf_expand_file_adinicb(struct inode *);
  122. extern struct buffer_head *udf_expand_dir_adinicb(struct inode *inode,
  123. udf_pblk_t *block, int *err);
  124. extern struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block,
  125. int create, int *err);
  126. extern int udf_setsize(struct inode *, loff_t);
  127. extern void udf_evict_inode(struct inode *);
  128. extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
  129. extern udf_pblk_t udf_block_map(struct inode *inode, sector_t block);
  130. extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
  131. struct kernel_lb_addr *, uint32_t *, sector_t *);
  132. extern int udf_setup_indirect_aext(struct inode *inode, udf_pblk_t block,
  133. struct extent_position *epos);
  134. extern int __udf_add_aext(struct inode *inode, struct extent_position *epos,
  135. struct kernel_lb_addr *eloc, uint32_t elen, int inc);
  136. extern int udf_add_aext(struct inode *, struct extent_position *,
  137. struct kernel_lb_addr *, uint32_t, int);
  138. extern void udf_write_aext(struct inode *, struct extent_position *,
  139. struct kernel_lb_addr *, uint32_t, int);
  140. extern int8_t udf_delete_aext(struct inode *, struct extent_position);
  141. extern int8_t udf_next_aext(struct inode *, struct extent_position *,
  142. struct kernel_lb_addr *, uint32_t *, int);
  143. extern int8_t udf_current_aext(struct inode *, struct extent_position *,
  144. struct kernel_lb_addr *, uint32_t *, int);
  145. extern void udf_update_extra_perms(struct inode *inode, umode_t mode);
  146. /* misc.c */
  147. extern struct buffer_head *udf_tgetblk(struct super_block *sb,
  148. udf_pblk_t block);
  149. extern struct buffer_head *udf_tread(struct super_block *sb, udf_pblk_t block);
  150. extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
  151. uint32_t, uint8_t);
  152. extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
  153. uint8_t);
  154. extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
  155. uint32_t, uint16_t *);
  156. extern struct buffer_head *udf_read_ptagged(struct super_block *,
  157. struct kernel_lb_addr *, uint32_t,
  158. uint16_t *);
  159. extern void udf_update_tag(char *, int);
  160. extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
  161. /* lowlevel.c */
  162. extern unsigned int udf_get_last_session(struct super_block *);
  163. extern unsigned long udf_get_last_block(struct super_block *);
  164. /* partition.c */
  165. extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
  166. uint32_t);
  167. extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
  168. uint32_t);
  169. extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
  170. uint32_t);
  171. extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
  172. uint32_t);
  173. extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
  174. uint32_t);
  175. extern int udf_relocate_blocks(struct super_block *, long, long *);
  176. static inline uint32_t
  177. udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
  178. uint32_t offset)
  179. {
  180. return udf_get_pblock(sb, loc->logicalBlockNum,
  181. loc->partitionReferenceNum, offset);
  182. }
  183. /* unicode.c */
  184. extern int udf_get_filename(struct super_block *, const uint8_t *, int,
  185. uint8_t *, int);
  186. extern int udf_put_filename(struct super_block *, const uint8_t *, int,
  187. uint8_t *, int);
  188. extern int udf_dstrCS0toChar(struct super_block *, uint8_t *, int,
  189. const uint8_t *, int);
  190. /* ialloc.c */
  191. extern void udf_free_inode(struct inode *);
  192. extern struct inode *udf_new_inode(struct inode *, umode_t);
  193. /* truncate.c */
  194. extern void udf_truncate_tail_extent(struct inode *);
  195. extern void udf_discard_prealloc(struct inode *);
  196. extern int udf_truncate_extents(struct inode *);
  197. /* balloc.c */
  198. extern void udf_free_blocks(struct super_block *, struct inode *,
  199. struct kernel_lb_addr *, uint32_t, uint32_t);
  200. extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
  201. uint32_t, uint32_t);
  202. extern udf_pblk_t udf_new_block(struct super_block *sb, struct inode *inode,
  203. uint16_t partition, uint32_t goal, int *err);
  204. /* directory.c */
  205. extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
  206. struct udf_fileident_bh *,
  207. struct fileIdentDesc *,
  208. struct extent_position *,
  209. struct kernel_lb_addr *, uint32_t *,
  210. sector_t *);
  211. extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
  212. int *offset);
  213. extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
  214. extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
  215. /* udftime.c */
  216. extern void udf_disk_stamp_to_time(struct timespec64 *dest,
  217. struct timestamp src);
  218. extern void udf_time_to_disk_stamp(struct timestamp *dest, struct timespec64 src);
  219. #endif /* __UDF_DECL_H */