/* $OpenBSD: fuse.h,v 1.10 2013/11/13 17:54:36 stsp Exp $ */ /* * Copyright (c) 2013 Sylvestre Gallon * * 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 #include #include #include #include #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_fill_dir_t filler; void *buf; int filled; int full; int isgetdir; uint32_t size; uint32_t start; uint32_t idx; off_t off; } *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 /* * 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_ */