diff options
Diffstat (limited to 'fs/udf/udfdecl.h')
-rw-r--r-- | fs/udf/udfdecl.h | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h new file mode 100644 index 000000000..9dd0814f1 --- /dev/null +++ b/fs/udf/udfdecl.h @@ -0,0 +1,258 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __UDF_DECL_H +#define __UDF_DECL_H + +#define pr_fmt(fmt) "UDF-fs: " fmt + +#include "ecma_167.h" +#include "osta_udf.h" + +#include <linux/fs.h> +#include <linux/types.h> +#include <linux/buffer_head.h> +#include <linux/udf_fs_i.h> + +#include "udf_sb.h" +#include "udfend.h" +#include "udf_i.h" + +#define UDF_DEFAULT_PREALLOC_BLOCKS 8 + +extern __printf(3, 4) void _udf_err(struct super_block *sb, + const char *function, const char *fmt, ...); +#define udf_err(sb, fmt, ...) \ + _udf_err(sb, __func__, fmt, ##__VA_ARGS__) + +extern __printf(3, 4) void _udf_warn(struct super_block *sb, + const char *function, const char *fmt, ...); +#define udf_warn(sb, fmt, ...) \ + _udf_warn(sb, __func__, fmt, ##__VA_ARGS__) + +#define udf_info(fmt, ...) \ + pr_info("INFO " fmt, ##__VA_ARGS__) + +#define udf_debug(fmt, ...) \ + pr_debug("%s:%d:%s: " fmt, __FILE__, __LINE__, __func__, ##__VA_ARGS__) + +#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) ) +#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) ) + +#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF +#define UDF_EXTENT_FLAG_MASK 0xC0000000 + +#define UDF_INVALID_ID ((uint32_t)-1) + +#define UDF_NAME_PAD 4 +#define UDF_NAME_LEN 254 +#define UDF_NAME_LEN_CS0 255 + +static inline size_t udf_file_entry_alloc_offset(struct inode *inode) +{ + struct udf_inode_info *iinfo = UDF_I(inode); + if (iinfo->i_use) + return sizeof(struct unallocSpaceEntry); + else if (iinfo->i_efe) + return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr; + else + return sizeof(struct fileEntry) + iinfo->i_lenEAttr; +} + +static inline size_t udf_ext0_offset(struct inode *inode) +{ + if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) + return udf_file_entry_alloc_offset(inode); + else + return 0; +} + +/* computes tag checksum */ +u8 udf_tag_checksum(const struct tag *t); + +typedef uint32_t udf_pblk_t; + +struct dentry; +struct inode; +struct task_struct; +struct buffer_head; +struct super_block; + +extern const struct export_operations udf_export_ops; +extern const struct inode_operations udf_dir_inode_operations; +extern const struct file_operations udf_dir_operations; +extern const struct inode_operations udf_file_inode_operations; +extern const struct file_operations udf_file_operations; +extern const struct inode_operations udf_symlink_inode_operations; +extern const struct address_space_operations udf_aops; +extern const struct address_space_operations udf_adinicb_aops; +extern const struct address_space_operations udf_symlink_aops; + +struct udf_fileident_bh { + struct buffer_head *sbh; + struct buffer_head *ebh; + int soffset; + int eoffset; +}; + +struct udf_vds_record { + uint32_t block; + uint32_t volDescSeqNum; +}; + +struct generic_desc { + struct tag descTag; + __le32 volDescSeqNum; +}; + + +/* super.c */ + +static inline void udf_updated_lvid(struct super_block *sb) +{ + struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh; + + BUG_ON(!bh); + WARN_ON_ONCE(((struct logicalVolIntegrityDesc *) + bh->b_data)->integrityType != + cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN)); + UDF_SB(sb)->s_lvid_dirty = 1; +} +extern u64 lvid_get_unique_id(struct super_block *sb); +struct inode *udf_find_metadata_inode_efe(struct super_block *sb, + u32 meta_file_loc, u32 partition_num); + +/* namei.c */ +extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, + struct fileIdentDesc *, struct udf_fileident_bh *, + uint8_t *, uint8_t *); +static inline unsigned int udf_dir_entry_len(struct fileIdentDesc *cfi) +{ + return ALIGN(sizeof(struct fileIdentDesc) + + le16_to_cpu(cfi->lengthOfImpUse) + cfi->lengthFileIdent, + UDF_NAME_PAD); +} + +/* file.c */ +extern long udf_ioctl(struct file *, unsigned int, unsigned long); +/* inode.c */ +extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *, + bool hidden_inode); +static inline struct inode *udf_iget_special(struct super_block *sb, + struct kernel_lb_addr *ino) +{ + return __udf_iget(sb, ino, true); +} +static inline struct inode *udf_iget(struct super_block *sb, + struct kernel_lb_addr *ino) +{ + return __udf_iget(sb, ino, false); +} +extern int udf_expand_file_adinicb(struct inode *); +extern struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, + udf_pblk_t *block, int *err); +extern struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block, + int create, int *err); +extern int udf_setsize(struct inode *, loff_t); +extern void udf_evict_inode(struct inode *); +extern int udf_write_inode(struct inode *, struct writeback_control *wbc); +extern udf_pblk_t udf_block_map(struct inode *inode, sector_t block); +extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *, + struct kernel_lb_addr *, uint32_t *, sector_t *); +extern int udf_setup_indirect_aext(struct inode *inode, udf_pblk_t block, + struct extent_position *epos); +extern int __udf_add_aext(struct inode *inode, struct extent_position *epos, + struct kernel_lb_addr *eloc, uint32_t elen, int inc); +extern int udf_add_aext(struct inode *, struct extent_position *, + struct kernel_lb_addr *, uint32_t, int); +extern void udf_write_aext(struct inode *, struct extent_position *, + struct kernel_lb_addr *, uint32_t, int); +extern int8_t udf_delete_aext(struct inode *, struct extent_position); +extern int8_t udf_next_aext(struct inode *, struct extent_position *, + struct kernel_lb_addr *, uint32_t *, int); +extern int8_t udf_current_aext(struct inode *, struct extent_position *, + struct kernel_lb_addr *, uint32_t *, int); +extern void udf_update_extra_perms(struct inode *inode, umode_t mode); + +/* misc.c */ +extern struct buffer_head *udf_tgetblk(struct super_block *sb, + udf_pblk_t block); +extern struct buffer_head *udf_tread(struct super_block *sb, udf_pblk_t block); +extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, + uint32_t, uint8_t); +extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, + uint8_t); +extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, + uint32_t, uint16_t *); +extern struct buffer_head *udf_read_ptagged(struct super_block *, + struct kernel_lb_addr *, uint32_t, + uint16_t *); +extern void udf_update_tag(char *, int); +extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int); + +/* lowlevel.c */ +extern unsigned int udf_get_last_session(struct super_block *); +extern unsigned long udf_get_last_block(struct super_block *); + +/* partition.c */ +extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, + uint32_t); +extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, + uint32_t); +extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, + uint32_t); +extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, + uint32_t); +extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t, + uint32_t); +extern int udf_relocate_blocks(struct super_block *, long, long *); + +static inline uint32_t +udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc, + uint32_t offset) +{ + return udf_get_pblock(sb, loc->logicalBlockNum, + loc->partitionReferenceNum, offset); +} + +/* unicode.c */ +extern int udf_get_filename(struct super_block *, const uint8_t *, int, + uint8_t *, int); +extern int udf_put_filename(struct super_block *, const uint8_t *, int, + uint8_t *, int); +extern int udf_dstrCS0toChar(struct super_block *, uint8_t *, int, + const uint8_t *, int); + +/* ialloc.c */ +extern void udf_free_inode(struct inode *); +extern struct inode *udf_new_inode(struct inode *, umode_t); + +/* truncate.c */ +extern void udf_truncate_tail_extent(struct inode *); +extern void udf_discard_prealloc(struct inode *); +extern int udf_truncate_extents(struct inode *); + +/* balloc.c */ +extern void udf_free_blocks(struct super_block *, struct inode *, + struct kernel_lb_addr *, uint32_t, uint32_t); +extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, + uint32_t, uint32_t); +extern udf_pblk_t udf_new_block(struct super_block *sb, struct inode *inode, + uint16_t partition, uint32_t goal, int *err); + +/* directory.c */ +extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *, + struct udf_fileident_bh *, + struct fileIdentDesc *, + struct extent_position *, + struct kernel_lb_addr *, uint32_t *, + sector_t *); +extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, + int *offset); +extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int); +extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int); + +/* udftime.c */ +extern void udf_disk_stamp_to_time(struct timespec64 *dest, + struct timestamp src); +extern void udf_time_to_disk_stamp(struct timestamp *dest, struct timespec64 src); + +#endif /* __UDF_DECL_H */ |