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/* $OpenBSD: fusefs.h,v 1.4 2013/10/07 18:07:04 syl Exp $ */
/*
* Copyright (c) 2012-2013 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 __FUSEFS_H__
#define __FUSEFS_H__
/* sysctl defines */
#define FUSEFS_OPENDEVS 1 /* # of fuse devices opened */
#define FUSEFS_INFBUFS 2 /* # of in fbufs */
#define FUSEFS_WAITFBUFS 3 /* # of fbufs waiting for a response */
#define FUSEFS_POOL_NBPAGES 4 /* # total fusefs size */
#define FUSEFS_MAXID 5 /* number of valid fusefs ids */
#define FUSEFS_NAMES { \
{ 0, 0}, \
{ "fusefs_open_devices", CTLTYPE_INT }, \
{ "fusefs_fbufs_in", CTLTYPE_INT }, \
{ "fusefs_fbufs_wait", CTLTYPE_INT }, \
{ "fusefs_pool_pages", CTLTYPE_INT }, \
}
struct fb_ioctl_xch {
uint64_t fbxch_uuid;
size_t fbxch_len;
uint8_t *fbxch_data;
};
/* FUSE Device ioctls */
#define FIOCGETFBDAT _IOW('F', 0, struct fb_ioctl_xch)
#define FIOCSETFBDAT _IOW('F', 1, struct fb_ioctl_xch)
#ifdef _KERNEL
struct fuse_msg;
struct fusefs_mnt {
struct mount *mp;
uint32_t undef_op;
uint32_t max_write;
int sess_init;
dev_t dev;
};
#define UNDEF_ACCESS 1<<0
#define UNDEF_MKDIR 1<<1
#define UNDEF_CREATE 1<<2
#define UNDEF_LINK 1<<3
#define UNDEF_READLINK 1<<4
#define UNDEF_RMDIR 1<<5
#define UNDEF_REMOVE 1<<6
#define UNDEF_SETATTR 1<<7
#define UNDEF_RENAME 1<<8
#define UNDEF_SYMLINK 1<<9
extern struct vops fusefs_vops;
extern struct pool fusefs_fbuf_pool;
/* fuse helpers */
#define TSLEEP_TIMEOUT 5
void update_vattr(struct mount *mp, struct vattr *v);
/* files helpers. */
int fusefs_file_open(struct fusefs_mnt *, struct fusefs_node *, enum fufh_type,
int, int, struct proc *);
int fusefs_file_close(struct fusefs_mnt *, struct fusefs_node *,
enum fufh_type, int, int, struct proc *);
/* device helpers. */
void fuse_device_cleanup(dev_t, struct fusebuf *);
void fuse_device_queue_fbuf(dev_t, struct fusebuf *);
void fuse_device_set_fmp(struct fusefs_mnt *);
/*
* The root inode is the root of the file system. Inode 0 can't be used for
* normal purposes.
*/
#define FUSE_ROOTINO ((ino_t)1)
#define VFSTOFUSEFS(mp) ((struct fusefs_mnt *)((mp)->mnt_data))
#endif /* _KERNEL */
#endif /* __FUSEFS_H__ */
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