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/*
FUSE: Filesystem in Userspace
Copyright (C) 2001-2005 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU LGPL.
See the file COPYING.LIB.
*/
#ifndef _FUSE_LOWLEVEL_H_
#define _FUSE_LOWLEVEL_H_
/* ----------------------------------------------------------- *
* Low level API *
* ----------------------------------------------------------- */
#include <fuse_common.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef unsigned long fuse_ino_t;
typedef struct fuse_req *fuse_req_t;
struct fuse_entry_param {
fuse_ino_t ino;
unsigned long generation;
const struct stat *attr;
double attr_timeout;
double entry_timeout;
unsigned int direct_io : 1;
};
/* 'to_set' flags in setattr */
#define FUSE_SET_ATTR_MODE (1 << 0)
#define FUSE_SET_ATTR_UID (1 << 1)
#define FUSE_SET_ATTR_GID (1 << 2)
#define FUSE_SET_ATTR_SIZE (1 << 3)
#define FUSE_SET_ATTR_ATIME (1 << 4)
#define FUSE_SET_ATTR_MTIME (1 << 5)
#define FUSE_SET_ATTR_CTIME (1 << 6)
struct fuse_lowlevel_operations {
void (*lookup) (fuse_req_t req, fuse_ino_t parent, const char *name);
void (*forget) (fuse_req_t req, fuse_ino_t ino);
void (*getattr) (fuse_req_t req, fuse_ino_t ino);
void (*setattr) (fuse_req_t req, fuse_ino_t ino, struct stat *attr,
int to_set);
void (*readlink)(fuse_req_t req, fuse_ino_t ino);
void (*mknod) (fuse_req_t req, fuse_ino_t parent, const char *name,
mode_t mode, dev_t rdev);
void (*mkdir) (fuse_req_t req, fuse_ino_t parent, const char *name,
mode_t mode);
void (*unlink) (fuse_req_t req, fuse_ino_t parent, const char *name);
void (*rmdir) (fuse_req_t req, fuse_ino_t parent, const char *name);
void (*symlink) (fuse_req_t req, const char *link, fuse_ino_t parent,
const char *name);
void (*rename) (fuse_req_t req, fuse_ino_t parent, const char *name,
fuse_ino_t newparent, const char *newname);
void (*link) (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent,
const char *newname);
void (*open) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *f);
void (*read) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
struct fuse_file_info *f);
void (*write) (fuse_req_t req, fuse_ino_t ino, const char *buf,
size_t size, off_t off, struct fuse_file_info *f);
void (*flush) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *f);
void (*release) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *f);
void (*fsync) (fuse_req_t req, fuse_ino_t ino, int datasync,
struct fuse_file_info *f);
void (*opendir) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *f);
void (*readdir) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
struct fuse_file_info *f);
void (*releasedir) (fuse_req_t req, fuse_ino_t ino,
struct fuse_file_info *f);
void (*fsyncdir) (fuse_req_t req, fuse_ino_t ino, int datasync,
struct fuse_file_info *f);
void (*statfs) (fuse_req_t req, fuse_ino_t ino);
void (*setxattr)(fuse_req_t req, fuse_ino_t ino, const char *name,
const char *value, size_t size, int flags);
void (*getxattr)(fuse_req_t req, fuse_ino_t ino, const char *name,
size_t size);
void (*listxattr)(fuse_req_t req, fuse_ino_t ino, size_t size);
void (*removexattr)(fuse_req_t req, fuse_ino_t ino, const char *name);
};
/* all except release and forget */
int fuse_reply_err(fuse_req_t req, int err);
/* forget, unlink, rmdir, rename, setxattr, removexattr, release, releasedir */
int fuse_reply_ok(fuse_req_t req);
/* lookup, mknod, mkdir, symlink, link */
int fuse_reply_entry(fuse_req_t req, struct fuse_entry_param *e);
/* getattr, setattr */
int fuse_reply_attr(fuse_req_t req, int struct stat *attr, double attr_timeout);
/* readlink */
int fuse_reply_readlink(fuse_req_t req, const char *link);
/* open, flush, fsync, opendir, fsyncdir */
int fuse_reply_file_info(fuse_req_t req, const struct fuse_file_info *f);
/* write */
int fuse_reply_write(fuse_req_t req, size_t count,
const struct fuse_file_info *f);
/* read, readdir */
int fuse_reply_buf(fuse_req_t req, const char *buf, size_t size,
const struct fuse_file_info *f);
/* statfs */
int fuse_reply_statfs(fuse_req_t req, const struct statfs *statfs);
/* getxattr, listxattr */
int fuse_reply_xattr(fuse_req_t req, const char *buf, size_t size);
/* return the size of a directory entry */
size_t fuse_dirent_size(size_t namelen);
/* add a directory entry to the buffer */
void fuse_add_dirent(char *buf, const char *name, const struct stat *stat,
off_t off);
#ifdef __cplusplus
}
#endif
#endif /* _FUSE_LOWLEVEL_H_ */
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