2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2007-2009 Google Inc. and Amit Singh
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following disclaimer
15 * in the documentation and/or other materials provided with the
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19 * this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * Copyright (C) 2005 Csaba Henk.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
45 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 #include <sys/types.h>
64 #include <sys/mutex.h>
66 #include "fuse_file.h"
68 #define FN_REVOKED 0x00000020
69 #define FN_FLUSHINPROG 0x00000040
70 #define FN_FLUSHWANT 0x00000080
71 #define FN_SIZECHANGE 0x00000100
72 #define FN_DIRECTIO 0x00000200
74 #define FUSE_FILESIZE_UNINITIALIZED -1
76 struct fuse_vnode_data {
84 /* List of file handles for all of the vnode's open file descriptors */
85 LIST_HEAD(, fuse_filehandle) handles;
91 /* The monotonic time after which the attr cache is invalid */
92 struct bintime attr_cache_timeout;
93 struct vattr cached_attrs;
95 * File size according to the kernel, not the daemon.
96 * May differ from cached_attrs.st_size due to write caching. Unlike
97 * cached_attrs.st_size, filesize never expires.
105 ((struct fuse_vnode_data *)((vp)->v_data))
106 #define VTOI(vp) (VTOFUD(vp)->nid)
107 static inline struct vattr*
108 VTOVA(struct vnode *vp)
113 if (bintime_cmp(&(VTOFUD(vp)->attr_cache_timeout), &now, >))
114 return &(VTOFUD(vp)->cached_attrs);
120 fuse_vnode_clear_attr_cache(struct vnode *vp)
122 bintime_clear(&VTOFUD(vp)->attr_cache_timeout);
125 #define VTOILLU(vp) ((uint64_t)(VTOFUD(vp) ? VTOI(vp) : 0))
127 #define FUSE_NULL_ID 0
129 extern struct vop_vector fuse_fifoops;
130 extern struct vop_vector fuse_vnops;
133 fuse_vnode_setparent(struct vnode *vp, struct vnode *dvp)
135 if (dvp != NULL && vp->v_type == VDIR) {
136 MPASS(dvp->v_type == VDIR);
137 VTOFUD(vp)->parent_nid = VTOI(dvp);
141 void fuse_vnode_destroy(struct vnode *vp);
143 int fuse_vnode_get(struct mount *mp, struct fuse_entry_out *feo,
144 uint64_t nodeid, struct vnode *dvp, struct vnode **vpp,
145 struct componentname *cnp, enum vtype vtyp);
147 void fuse_vnode_open(struct vnode *vp, int32_t fuse_open_flags,
150 int fuse_vnode_refreshsize(struct vnode *vp, struct ucred *cred);
152 int fuse_vnode_savesize(struct vnode *vp, struct ucred *cred, pid_t pid);
154 int fuse_vnode_setsize(struct vnode *vp, struct ucred *cred, off_t newsize);
156 #endif /* _FUSE_NODE_H_ */