1/* $OpenBSD: fusefs_node.h,v 1.6 2026/01/22 11:53:31 helg Exp $ */
2/*
3 * Copyright (c) 2012-2013 Sylvestre Gallon <ccna.syl@gmail.com>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#ifndef _FUSEFS_NODE_H_
19#define _FUSEFS_NODE_H_
20
21#include <sys/queue.h>
22
23enum fufh_type {
24 FUFH_INVALID = -1,
25 FUFH_RDONLY = 0,
26 FUFH_WRONLY = 1,
27 FUFH_RDWR = 2,
28 FUFH_MAXTYPE = 3,
29};
30
31struct fusefs_filehandle {
32 uint64_t fh_id;
33 enum fufh_type fh_type;
34};
35
36struct fusefs_mnt;
37struct fusefs_node {
38 LIST_ENTRY(fusefs_node) i_hash; /* Hash chain */
39 struct vnode *i_vnode;/* Vnode associated with this inode. */
40 struct fusefs_mnt *i_ump;
41 dev_t i_dev; /* Device associated with the inode. */
42 ino_t i_number; /* The identity of the inode. */
43 ino_t i_parent_cache;/* Parent inode (only dirs). */
44 struct lockf_state *i_lockf; /* Byte-level lock state. */
45 struct rrwlock i_lock; /* Inode lock */
46
47 /** I/O **/
48 struct fusefs_filehandle fufh[FUFH_MAXTYPE];
49
50 /** meta **/
51 off_t filesize;
52};
53
54#ifdef ITOV
55# undef ITOV
56#endif
57#define ITOV(ip) ((ip)->i_vnode)
58
59#ifdef VTOI
60# undef VTOI
61#endif
62#define VTOI(vp) ((struct fusefs_node *)(vp)->v_data)
63
64void fuse_ihashinit(void);
65struct vnode *fuse_ihashget(dev_t, ino_t);
66int fuse_ihashins(struct fusefs_node *);
67void fuse_ihashrem(struct fusefs_node *);
68
69uint64_t fusefs_fd_get(struct fusefs_node *, enum fufh_type);
70
71#endif /* _FUSEFS_NODE_H_ */