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
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15 * in the documentation and/or other materials provided with the
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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.
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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
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48 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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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
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60 #ifndef _FUSE_INTERNAL_H_
61 #define _FUSE_INTERNAL_H_
63 #include <sys/types.h>
66 #include <sys/vnode.h>
69 #include "fuse_node.h"
72 vfs_isrdonly(struct mount *mp)
74 return ((mp->mnt_flag & MNT_RDONLY) != 0);
77 static inline struct mount *
78 vnode_mount(struct vnode *vp)
84 vnode_mountedhere(struct vnode *vp)
86 return (vp->v_mountedhere != NULL);
89 static inline enum vtype
90 vnode_vtype(struct vnode *vp)
96 vnode_isvroot(struct vnode *vp)
98 return ((vp->v_vflag & VV_ROOT) != 0);
102 vnode_isreg(struct vnode *vp)
104 return (vp->v_type == VREG);
108 vnode_isdir(struct vnode *vp)
110 return (vp->v_type == VDIR);
114 vnode_islnk(struct vnode *vp)
116 return (vp->v_type == VLNK);
119 static inline ssize_t
120 uio_resid(struct uio *uio)
122 return (uio->uio_resid);
126 uio_offset(struct uio *uio)
128 return (uio->uio_offset);
132 uio_setoffset(struct uio *uio, off_t offset)
134 uio->uio_offset = offset;
138 uio_setresid(struct uio *uio, ssize_t resid)
140 uio->uio_resid = resid;
146 fuse_isdeadfs(struct vnode *vp)
148 struct fuse_data *data = fuse_get_mpdata(vnode_mount(vp));
150 return (data->dataflags & FSESS_DEAD);
153 static inline uint64_t
154 fuse_iosize(struct vnode *vp)
156 return (vp->v_mount->mnt_stat.f_iosize);
161 #define FVP_ACCESS_NOOP 0x01
163 #define FACCESS_VA_VALID 0x01
164 #define FACCESS_DO_ACCESS 0x02
165 #define FACCESS_STICKY 0x04
166 #define FACCESS_CHOWN 0x08
167 #define FACCESS_NOCHECKSPY 0x10
168 #define FACCESS_SETGID 0x12
170 #define FACCESS_XQUERIES (FACCESS_STICKY | FACCESS_CHOWN | FACCESS_SETGID)
172 struct fuse_access_param {
179 fuse_match_cred(struct ucred *basecred, struct ucred *usercred)
181 if (basecred->cr_uid == usercred->cr_uid &&
182 basecred->cr_uid == usercred->cr_ruid &&
183 basecred->cr_uid == usercred->cr_svuid &&
184 basecred->cr_groups[0] == usercred->cr_groups[0] &&
185 basecred->cr_groups[0] == usercred->cr_rgid &&
186 basecred->cr_groups[0] == usercred->cr_svgid)
192 int fuse_internal_access(struct vnode *vp, mode_t mode,
193 struct fuse_access_param *facp, struct thread *td, struct ucred *cred);
196 void fuse_internal_cache_attrs(struct vnode *vp, struct fuse_attr *attr,
197 uint64_t attr_valid, uint32_t attr_valid_nsec, struct vattr *vap);
201 int fuse_internal_fsync(struct vnode *vp, struct thread *td,
202 struct ucred *cred, struct fuse_filehandle *fufh);
203 int fuse_internal_fsync_callback(struct fuse_ticket *tick, struct uio *uio);
207 struct pseudo_dirent {
211 int fuse_internal_readdir(struct vnode *vp, struct uio *uio,
212 struct fuse_filehandle *fufh, struct fuse_iov *cookediov);
213 int fuse_internal_readdir_processdata(struct uio *uio, size_t reqsize,
214 void *buf, size_t bufsize, void *param);
218 int fuse_internal_remove(struct vnode *dvp, struct vnode *vp,
219 struct componentname *cnp, enum fuse_opcode op);
223 int fuse_internal_rename(struct vnode *fdvp, struct componentname *fcnp,
224 struct vnode *tdvp, struct componentname *tcnp);
228 void fuse_internal_vnode_disappear(struct vnode *vp);
232 /* entity creation */
235 fuse_internal_checkentry(struct fuse_entry_out *feo, enum vtype vtyp)
237 if (vtyp != IFTOVT(feo->attr.mode)) {
241 if (feo->nodeid == FUSE_NULL_ID) {
245 if (feo->nodeid == FUSE_ROOT_ID) {
252 int fuse_internal_newentry(struct vnode *dvp, struct vnode **vpp,
253 struct componentname *cnp, enum fuse_opcode op, void *buf, size_t bufsize,
256 void fuse_internal_newentry_makerequest(struct mount *mp, uint64_t dnid,
257 struct componentname *cnp, enum fuse_opcode op, void *buf, size_t bufsize,
258 struct fuse_dispatcher *fdip);
260 int fuse_internal_newentry_core(struct vnode *dvp, struct vnode **vpp,
261 struct componentname *cnp, enum vtype vtyp, struct fuse_dispatcher *fdip);
263 /* entity destruction */
265 int fuse_internal_forget_callback(struct fuse_ticket *tick, struct uio *uio);
266 void fuse_internal_forget_send(struct mount *mp, struct thread *td,
267 struct ucred *cred, uint64_t nodeid, uint64_t nlookup);
269 /* fuse start/stop */
271 int fuse_internal_init_callback(struct fuse_ticket *tick, struct uio *uio);
272 void fuse_internal_send_init(struct fuse_data *data, struct thread *td);
274 #endif /* _FUSE_INTERNAL_H_ */