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/* $OpenBSD: fuse.h,v 1.14 2018/05/16 13:09:17 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_H_
#define _FUSE_H_
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <fcntl.h>
#include <utime.h>
#include <fuse_opt.h>
#ifdef __cplusplus
extern "C" {
#endif
struct fuse_chan;
struct fuse_args;
struct fuse_session;
struct fuse_file_info {
int32_t flags; /* open(2) flags */
uint32_t fh_old; /* old file handle */
int32_t writepage;
uint32_t direct_io:1;
uint32_t keep_cache:1;
uint32_t flush:1;
uint32_t nonseekable:1;
uint32_t __padd:27;
uint32_t flock_release : 1;
uint64_t fh; /* file handle */
uint64_t lock_owner;
};
/* unused but needed for gvfs compilation */
#define FUSE_CAP_ASYNC_READ (1 << 0)
#define FUSE_CAP_POSIX_LOCKS (1 << 1)
#define FUSE_CAP_ATOMIC_O_TRUNC (1 << 3)
#define FUSE_CAP_EXPORT_SUPPORT (1 << 4)
#define FUSE_CAP_BIG_WRITES (1 << 5)
#define FUSE_CAP_DONT_MASK (1 << 6)
#define FUSE_CAP_SPLICE_WRITE (1 << 7)
#define FUSE_CAP_SPLICE_MOVE (1 << 8)
#define FUSE_CAP_SPLICE_READ (1 << 9)
#define FUSE_CAP_FLOCK_LOCKS (1 << 10)
#define FUSE_CAP_IOCTL_DIR (1 << 11)
struct fuse_conn_info {
uint32_t proto_major;
uint32_t proto_minor;
uint32_t async_read;
uint32_t max_write;
uint32_t max_readahead;
uint32_t capable;
uint32_t want;
uint32_t max_background;
uint32_t congestion_threshold;
uint32_t reserved[23];
};
struct fuse_context {
struct fuse * fuse;
uid_t uid;
gid_t gid;
pid_t pid;
void *private_data;
mode_t umask;
};
typedef ino_t fuse_ino_t;
typedef int (*fuse_fill_dir_t)(void *, const char *, const struct stat *,
off_t);
typedef struct fuse_dirhandle *fuse_dirh_t;
typedef int (*fuse_dirfil_t)(fuse_dirh_t, const char *, int, ino_t);
/*
* Fuse operations work in the same way as their UNIX file system
* counterparts. A major exception is that these routines return
* a negated errno value (-errno) on failure.
*/
struct fuse_operations {
int (*getattr)(const char *, struct stat *);
int (*readlink)(const char *, char *, size_t);
int (*getdir)(const char *, fuse_dirh_t, fuse_dirfil_t);
int (*mknod)(const char *, mode_t, dev_t);
int (*mkdir)(const char *, mode_t);
int (*unlink)(const char *);
int (*rmdir)(const char *);
int (*symlink)(const char *, const char *);
int (*rename)(const char *, const char *);
int (*link)(const char *, const char *);
int (*chmod)(const char *, mode_t);
int (*chown)(const char *, uid_t, gid_t);
int (*truncate)(const char *, off_t);
int (*utime)(const char *, struct utimbuf *);
int (*open)(const char *, struct fuse_file_info *);
int (*read)(const char *, char *, size_t, off_t,
struct fuse_file_info *);
int (*write)(const char *, const char *, size_t, off_t,
struct fuse_file_info *);
int (*statfs)(const char *, struct statvfs *);
int (*flush)(const char *, struct fuse_file_info *);
int (*release)(const char *, struct fuse_file_info *);
int (*fsync)(const char *, int, struct fuse_file_info *);
int (*setxattr)(const char *, const char *, const char *, size_t,
int);
int (*getxattr)(const char *, const char *, char *, size_t);
int (*listxattr)(const char *, char *, size_t);
int (*removexattr)(const char *, const char *);
int (*opendir)(const char *, struct fuse_file_info *);
int (*readdir)(const char *, void *, fuse_fill_dir_t, off_t,
struct fuse_file_info *);
int (*releasedir)(const char *, struct fuse_file_info *);
int (*fsyncdir)(const char *, int, struct fuse_file_info *);
void *(*init)(struct fuse_conn_info *);
void (*destroy)(void *);
int (*access)(const char *, int);
int (*create)(const char *, mode_t, struct fuse_file_info *);
int (*ftruncate)(const char *, off_t, struct fuse_file_info *);
int (*fgetattr)(const char *, struct stat *, struct fuse_file_info *);
int (*lock)(const char *, struct fuse_file_info *, int, struct flock *);
int (*utimens)(const char *, const struct timespec *);
int (*bmap)(const char *, size_t , uint64_t *);
};
#ifndef FUSE_USE_VERSION
#define FUSE_USE_VERSION 26
#endif
#if FUSE_USE_VERSION >= 26
#define FUSE_VERSION 26
#else
#error "Fuse version < 26 not supported"
#endif
#define FUSE_MAJOR_VERSION 2
#define FUSE_MINOR_VERSION 6
/*
* API prototypes
*/
int fuse_version(void);
int fuse_main(int, char **, const struct fuse_operations *, void *);
struct fuse *fuse_new(struct fuse_chan *, struct fuse_args *,
const struct fuse_operations *, size_t, void *);
struct fuse *fuse_setup(int, char **, const struct fuse_operations *,
size_t, char **, int *, void *);
int fuse_parse_cmdline(struct fuse_args *, char **, int *, int *);
struct fuse_chan *fuse_mount(const char *, struct fuse_args *);
void fuse_remove_signal_handlers(struct fuse_session *);
int fuse_set_signal_handlers(struct fuse_session *);
struct fuse_session *fuse_get_session(struct fuse *);
struct fuse_context *fuse_get_context(void);
int fuse_is_lib_option(const char *);
int fuse_loop(struct fuse *);
int fuse_loop_mt(struct fuse *);
int fuse_chan_fd(struct fuse_chan *);
void fuse_unmount(const char *, struct fuse_chan *);
int fuse_daemonize(int);
void fuse_destroy(struct fuse *);
void fuse_teardown(struct fuse *, char *);
int fuse_invalidate(struct fuse *, const char *);
#ifdef __cplusplus
}
#endif
#endif /* _FUSE_H_ */
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