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/* $OpenBSD: fuse_private.h,v 1.20 2018/06/07 22:28:11 helg Exp $ */
/*
* Copyright (c) 2013 Sylvestre Gallon <ccna.syl@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _FUSE_SUBR_H_
#define _FUSE_SUBR_H_
#include <sys/dirent.h>
#include <sys/event.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <sys/tree.h>
#include <sys/fusebuf.h>
#include <limits.h>
#include "fuse.h"
struct fuse_args;
struct fuse_vnode {
ino_t ino;
struct fuse_vnode *parent;
unsigned int ref;
char path[NAME_MAX + 1];
SIMPLEQ_ENTRY(fuse_vnode) node; /* for dict */
};
struct fuse_dirhandle {
struct fuse *fuse;
fuse_fill_dir_t filler;
void *buf;
int full;
uint32_t size;
uint32_t start;
uint32_t idx;
off_t off;
};
SIMPLEQ_HEAD(fuse_vn_head, fuse_vnode);
SPLAY_HEAD(dict, dictentry);
SPLAY_HEAD(tree, treeentry);
struct fuse_session {
void *args;
};
struct fuse_chan {
char *dir;
struct fuse_args *args;
int fd;
int dead;
/* kqueue stuff */
int kq;
struct kevent event;
};
struct fuse_config {
uid_t uid;
gid_t gid;
pid_t pid;
mode_t umask;
int set_mode;
int set_uid;
int set_gid;
int use_ino;
};
struct fuse_core_opts {
char *mp;
int foreground;
};
struct fuse_mount_opts {
char *fsname;
int def_perms;
int max_read;
int noatime;
int nonempty;
int rdonly;
};
struct fuse {
struct fuse_chan *fc;
struct fuse_operations op;
int compat;
struct tree vnode_tree;
struct dict name_tree;
uint64_t max_ino;
void *private_data;
struct fuse_config conf;
struct fuse_session se;
};
#define FUSE_MAX_OPS 39
#define FUSE_ROOT_INO ((ino_t)1)
/* fuse_ops.c */
int ifuse_exec_opcode(struct fuse *, struct fusebuf *);
/* fuse_subr.c */
struct fuse_vnode *alloc_vn(struct fuse *, const char *, ino_t, ino_t);
void ref_vn(struct fuse_vnode *);
void unref_vn(struct fuse *, struct fuse_vnode *);
struct fuse_vnode *get_vn_by_name_and_parent(struct fuse *, uint8_t *,
ino_t);
void remove_vnode_from_name_tree(struct fuse *,
struct fuse_vnode *);
int set_vn(struct fuse *, struct fuse_vnode *);
char *build_realname(struct fuse *, ino_t);
/* tree.c */
#define tree_init(t) SPLAY_INIT((t))
#define tree_empty(t) SPLAY_EMPTY((t))
int tree_check(struct tree *, uint64_t);
void *tree_set(struct tree *, uint64_t, void *);
void *tree_get(struct tree *, uint64_t);;
void *tree_pop(struct tree *, uint64_t);
/* dict.c */
int dict_check(struct dict *, const char *);
void *dict_set(struct dict *, const char *, void *);
void *dict_get(struct dict *, const char *);;
void *dict_pop(struct dict *, const char *);
#define FUSE_VERSION_PKG_INFO "2.8.0"
#define unused __attribute__ ((unused))
#define PROTO(x) __dso_hidden typeof(x) x asm("__"#x)
#define DEF(x) __strong_alias(x, __##x)
PROTO(fuse_daemonize);
PROTO(fuse_destroy);
PROTO(fuse_get_context);
PROTO(fuse_get_session);
PROTO(fuse_loop);
PROTO(fuse_mount);
PROTO(fuse_new);
PROTO(fuse_opt_add_arg);
PROTO(fuse_opt_free_args);
PROTO(fuse_opt_insert_arg);
PROTO(fuse_opt_match);
PROTO(fuse_opt_parse);
PROTO(fuse_parse_cmdline);
PROTO(fuse_remove_signal_handlers);
PROTO(fuse_setup);
PROTO(fuse_unmount);
#endif /* _FUSE_SUBR_ */
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