1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2007-2009 Google Inc. and Amit Singh 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are 9 * met: 10 * 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 16 * distribution. 17 * * Neither the name of Google Inc. nor the names of its 18 * contributors may be used to endorse or promote products derived from 19 * this software without specific prior written permission. 20 * 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. 32 * 33 * Copyright (C) 2005 Csaba Henk. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 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. 44 * 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 55 * SUCH DAMAGE. 56 * 57 * $FreeBSD$ 58 */ 59 60 #ifndef _FUSE_NODE_H_ 61 #define _FUSE_NODE_H_ 62 63 #include <sys/types.h> 64 #include <sys/mutex.h> 65 66 #include "fuse_file.h" 67 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 73 74 struct fuse_vnode_data { 75 /** self **/ 76 uint64_t nid; 77 78 /** parent **/ 79 /* XXXIP very likely to be stale, it's not updated in rename() */ 80 uint64_t parent_nid; 81 82 /** I/O **/ 83 struct fuse_filehandle fufh[FUFH_MAXTYPE]; 84 85 /** flags **/ 86 uint32_t flag; 87 88 /** meta **/ 89 bool valid_attr_cache; 90 struct vattr cached_attrs; 91 off_t filesize; 92 uint64_t nlookup; 93 enum vtype vtype; 94 }; 95 96 #define VTOFUD(vp) \ 97 ((struct fuse_vnode_data *)((vp)->v_data)) 98 #define VTOI(vp) (VTOFUD(vp)->nid) 99 #define VTOVA(vp) \ 100 (VTOFUD(vp)->valid_attr_cache ? \ 101 &(VTOFUD(vp)->cached_attrs) : NULL) 102 #define VTOILLU(vp) ((uint64_t)(VTOFUD(vp) ? VTOI(vp) : 0)) 103 104 #define FUSE_NULL_ID 0 105 106 extern struct vop_vector fuse_vnops; 107 108 static inline void 109 fuse_vnode_setparent(struct vnode *vp, struct vnode *dvp) 110 { 111 if (dvp != NULL && vp->v_type == VDIR) { 112 MPASS(dvp->v_type == VDIR); 113 VTOFUD(vp)->parent_nid = VTOI(dvp); 114 } 115 } 116 117 void fuse_vnode_destroy(struct vnode *vp); 118 119 int fuse_vnode_get(struct mount *mp, struct fuse_entry_out *feo, 120 uint64_t nodeid, struct vnode *dvp, struct vnode **vpp, 121 struct componentname *cnp, enum vtype vtyp); 122 123 void fuse_vnode_open(struct vnode *vp, int32_t fuse_open_flags, 124 struct thread *td); 125 126 void fuse_vnode_refreshsize(struct vnode *vp, struct ucred *cred); 127 128 int fuse_vnode_savesize(struct vnode *vp, struct ucred *cred); 129 130 int fuse_vnode_setsize(struct vnode *vp, struct ucred *cred, off_t newsize); 131 132 #endif /* _FUSE_NODE_H_ */ 133