/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/include/linux/hfsplus_fs.h * * Copyright (C) 1999 * Brad Boyer ([email protected]) * (C) 2003 Ardis Technologies <[email protected]> * */ #ifndef _LINUX_HFSPLUS_FS_H #define _LINUX_HFSPLUS_FS_H #ifdef pr_fmt #undef pr_fmt #endif #define pr_fmt(fmt) … #include <linux/fs.h> #include <linux/mutex.h> #include <linux/buffer_head.h> #include <linux/blkdev.h> #include "hfsplus_raw.h" #define DBG_BNODE_REFS … #define DBG_BNODE_MOD … #define DBG_CAT_MOD … #define DBG_INODE … #define DBG_SUPER … #define DBG_EXTENT … #define DBG_BITMAP … #define DBG_ATTR_MOD … #if 0 #define DBG_MASK … #define DBG_MASK … #define DBG_MASK … #endif #define DBG_MASK … #define hfs_dbg(flg, fmt, ...) … #define hfs_dbg_cont(flg, fmt, ...) … /* Runtime config options */ #define HFSPLUS_DEF_CR_TYPE … #define HFSPLUS_TYPE_DATA … #define HFSPLUS_TYPE_RSRC … btree_keycmp; #define NODE_HASH_SIZE … /* B-tree mutex nested subclasses */ enum hfsplus_btree_mutex_classes { … }; /* An HFS+ BTree held in memory */ struct hfs_btree { … }; struct page; /* An HFS+ BTree node in memory */ struct hfs_bnode { … }; #define HFS_BNODE_LOCK … #define HFS_BNODE_ERROR … #define HFS_BNODE_NEW … #define HFS_BNODE_DIRTY … #define HFS_BNODE_DELETED … /* * Attributes file states */ #define HFSPLUS_EMPTY_ATTR_TREE … #define HFSPLUS_CREATING_ATTR_TREE … #define HFSPLUS_VALID_ATTR_TREE … #define HFSPLUS_FAILED_ATTR_TREE … /* * HFS+ superblock info (built from Volume Header on disk) */ struct hfsplus_vh; struct hfs_btree; struct hfsplus_sb_info { … }; #define HFSPLUS_SB_WRITEBACKUP … #define HFSPLUS_SB_NODECOMPOSE … #define HFSPLUS_SB_FORCE … #define HFSPLUS_SB_HFSX … #define HFSPLUS_SB_CASEFOLD … #define HFSPLUS_SB_NOBARRIER … #define HFSPLUS_SB_UID … #define HFSPLUS_SB_GID … static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb) { … } struct hfsplus_inode_info { … }; #define HFSPLUS_EXT_DIRTY … #define HFSPLUS_EXT_NEW … #define HFSPLUS_I_RSRC … #define HFSPLUS_I_CAT_DIRTY … #define HFSPLUS_I_EXT_DIRTY … #define HFSPLUS_I_ALLOC_DIRTY … #define HFSPLUS_I_ATTR_DIRTY … #define HFSPLUS_IS_RSRC(inode) … static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode) { … } /* * Mark an inode dirty, and also mark the btree in which the * specific type of metadata is stored. * For data or metadata that gets written back by into the catalog btree * by hfsplus_write_inode a plain mark_inode_dirty call is enough. */ static inline void hfsplus_mark_inode_dirty(struct inode *inode, unsigned int flag) { … } struct hfs_find_data { … }; struct hfsplus_readdir_data { … }; /* * Find minimum acceptible I/O size for an hfsplus sb. */ static inline unsigned short hfsplus_min_io_size(struct super_block *sb) { … } #define hfs_btree_open … #define hfs_btree_close … #define hfs_btree_write … #define hfs_bmap_reserve … #define hfs_bmap_alloc … #define hfs_bmap_free … #define hfs_bnode_read … #define hfs_bnode_read_u16 … #define hfs_bnode_read_u8 … #define hfs_bnode_read_key … #define hfs_bnode_write … #define hfs_bnode_write_u16 … #define hfs_bnode_clear … #define hfs_bnode_copy … #define hfs_bnode_move … #define hfs_bnode_dump … #define hfs_bnode_unlink … #define hfs_bnode_findhash … #define hfs_bnode_find … #define hfs_bnode_unhash … #define hfs_bnode_free … #define hfs_bnode_create … #define hfs_bnode_get … #define hfs_bnode_put … #define hfs_brec_lenoff … #define hfs_brec_keylen … #define hfs_brec_insert … #define hfs_brec_remove … #define hfs_find_init … #define hfs_find_exit … #define __hfs_brec_find … #define hfs_brec_find … #define hfs_brec_read … #define hfs_brec_goto … #define hfs_part_find … /* * hfs+-specific ioctl for making the filesystem bootable */ #define HFSPLUS_IOC_BLESS … search_strategy_t; /* * Functions in any *.c used in other files */ /* attributes.c */ int __init hfsplus_create_attr_tree_cache(void); void hfsplus_destroy_attr_tree_cache(void); int hfsplus_attr_bin_cmp_key(const hfsplus_btree_key *k1, const hfsplus_btree_key *k2); int hfsplus_attr_build_key(struct super_block *sb, hfsplus_btree_key *key, u32 cnid, const char *name); hfsplus_attr_entry *hfsplus_alloc_attr_entry(void); void hfsplus_destroy_attr_entry(hfsplus_attr_entry *entry); int hfsplus_find_attr(struct super_block *sb, u32 cnid, const char *name, struct hfs_find_data *fd); int hfsplus_attr_exists(struct inode *inode, const char *name); int hfsplus_create_attr(struct inode *inode, const char *name, const void *value, size_t size); int hfsplus_delete_attr(struct inode *inode, const char *name); int hfsplus_delete_all_attrs(struct inode *dir, u32 cnid); /* bitmap.c */ int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset, u32 *max); int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count); /* btree.c */ u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size, u64 sectors, int file_id); struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id); void hfs_btree_close(struct hfs_btree *tree); int hfs_btree_write(struct hfs_btree *tree); int hfs_bmap_reserve(struct hfs_btree *tree, int rsvd_nodes); struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree); void hfs_bmap_free(struct hfs_bnode *node); /* bnode.c */ void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len); u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off); u8 hfs_bnode_read_u8(struct hfs_bnode *node, int off); void hfs_bnode_read_key(struct hfs_bnode *node, void *key, int off); void hfs_bnode_write(struct hfs_bnode *node, void *buf, int off, int len); void hfs_bnode_write_u16(struct hfs_bnode *node, int off, u16 data); void hfs_bnode_clear(struct hfs_bnode *node, int off, int len); void hfs_bnode_copy(struct hfs_bnode *dst_node, int dst, struct hfs_bnode *src_node, int src, int len); void hfs_bnode_move(struct hfs_bnode *node, int dst, int src, int len); void hfs_bnode_dump(struct hfs_bnode *node); void hfs_bnode_unlink(struct hfs_bnode *node); struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *tree, u32 cnid); void hfs_bnode_unhash(struct hfs_bnode *node); struct hfs_bnode *hfs_bnode_find(struct hfs_btree *tree, u32 num); void hfs_bnode_free(struct hfs_bnode *node); struct hfs_bnode *hfs_bnode_create(struct hfs_btree *tree, u32 num); void hfs_bnode_get(struct hfs_bnode *node); void hfs_bnode_put(struct hfs_bnode *node); bool hfs_bnode_need_zeroout(struct hfs_btree *tree); /* brec.c */ u16 hfs_brec_lenoff(struct hfs_bnode *node, u16 rec, u16 *off); u16 hfs_brec_keylen(struct hfs_bnode *node, u16 rec); int hfs_brec_insert(struct hfs_find_data *fd, void *entry, int entry_len); int hfs_brec_remove(struct hfs_find_data *fd); /* bfind.c */ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd); void hfs_find_exit(struct hfs_find_data *fd); int hfs_find_1st_rec_by_cnid(struct hfs_bnode *bnode, struct hfs_find_data *fd, int *begin, int *end, int *cur_rec); int hfs_find_rec_by_key(struct hfs_bnode *bnode, struct hfs_find_data *fd, int *begin, int *end, int *cur_rec); int __hfs_brec_find(struct hfs_bnode *bnode, struct hfs_find_data *fd, search_strategy_t rec_found); int hfs_brec_find(struct hfs_find_data *fd, search_strategy_t do_key_compare); int hfs_brec_read(struct hfs_find_data *fd, void *rec, int rec_len); int hfs_brec_goto(struct hfs_find_data *fd, int cnt); /* catalog.c */ int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1, const hfsplus_btree_key *k2); int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1, const hfsplus_btree_key *k2); int hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key, u32 parent, const struct qstr *str); void hfsplus_cat_build_key_with_cnid(struct super_block *sb, hfsplus_btree_key *key, u32 parent); void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms); int hfsplus_find_cat(struct super_block *sb, u32 cnid, struct hfs_find_data *fd); int hfsplus_create_cat(u32 cnid, struct inode *dir, const struct qstr *str, struct inode *inode); int hfsplus_delete_cat(u32 cnid, struct inode *dir, const struct qstr *str); int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, const struct qstr *src_name, struct inode *dst_dir, const struct qstr *dst_name); /* dir.c */ extern const struct inode_operations hfsplus_dir_inode_operations; extern const struct file_operations hfsplus_dir_operations; /* extents.c */ int hfsplus_ext_cmp_key(const hfsplus_btree_key *k1, const hfsplus_btree_key *k2); int hfsplus_ext_write_extent(struct inode *inode); int hfsplus_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create); int hfsplus_free_fork(struct super_block *sb, u32 cnid, struct hfsplus_fork_raw *fork, int type); int hfsplus_file_extend(struct inode *inode, bool zeroout); void hfsplus_file_truncate(struct inode *inode); /* inode.c */ extern const struct address_space_operations hfsplus_aops; extern const struct address_space_operations hfsplus_btree_aops; extern const struct dentry_operations hfsplus_dentry_operations; int hfsplus_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, struct page **pagep, void **fsdata); struct inode *hfsplus_new_inode(struct super_block *sb, struct inode *dir, umode_t mode); void hfsplus_delete_inode(struct inode *inode); void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork); void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork); int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd); int hfsplus_cat_write_inode(struct inode *inode); int hfsplus_getattr(struct mnt_idmap *idmap, const struct path *path, struct kstat *stat, u32 request_mask, unsigned int query_flags); int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end, int datasync); int hfsplus_fileattr_get(struct dentry *dentry, struct fileattr *fa); int hfsplus_fileattr_set(struct mnt_idmap *idmap, struct dentry *dentry, struct fileattr *fa); /* ioctl.c */ long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); /* options.c */ void hfsplus_fill_defaults(struct hfsplus_sb_info *opts); int hfsplus_parse_options_remount(char *input, int *force); int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi); int hfsplus_show_options(struct seq_file *seq, struct dentry *root); /* part_tbl.c */ int hfs_part_find(struct super_block *sb, sector_t *part_start, sector_t *part_size); /* super.c */ struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino); void hfsplus_mark_mdb_dirty(struct super_block *sb); /* tables.c */ extern u16 hfsplus_case_fold_table[]; extern u16 hfsplus_decompose_table[]; extern u16 hfsplus_compose_table[]; /* unicode.c */ int hfsplus_strcasecmp(const struct hfsplus_unistr *s1, const struct hfsplus_unistr *s2); int hfsplus_strcmp(const struct hfsplus_unistr *s1, const struct hfsplus_unistr *s2); int hfsplus_uni2asc(struct super_block *sb, const struct hfsplus_unistr *ustr, char *astr, int *len_p); int hfsplus_asc2uni(struct super_block *sb, struct hfsplus_unistr *ustr, int max_unistr_len, const char *astr, int len); int hfsplus_hash_dentry(const struct dentry *dentry, struct qstr *str); int hfsplus_compare_dentry(const struct dentry *dentry, unsigned int len, const char *str, const struct qstr *name); /* wrapper.c */ int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf, void **data, blk_opf_t opf); int hfsplus_read_wrapper(struct super_block *sb); /* * time helpers: convert between 1904-base and 1970-base timestamps * * HFS+ implementations are highly inconsistent, this one matches the * traditional behavior of 64-bit Linux, giving the most useful * time range between 1970 and 2106, by treating any on-disk timestamp * under HFSPLUS_UTC_OFFSET (Jan 1 1970) as a time between 2040 and 2106. */ #define HFSPLUS_UTC_OFFSET … static inline time64_t __hfsp_mt2ut(__be32 mt) { … } static inline __be32 __hfsp_ut2mt(time64_t ut) { … } static inline enum hfsplus_btree_mutex_classes hfsplus_btree_lock_class(struct hfs_btree *tree) { … } /* compatibility */ #define hfsp_mt2ut(t) … #define hfsp_ut2mt(t) … #define hfsp_now2mt() … #endif
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