2 * Copyright (c) 2007-2009 Google Inc. and Amit Singh
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
9 * * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
15 * * Neither the name of Google Inc. nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 * Copyright (C) 2005 Csaba Henk.
32 * All rights reserved.
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
43 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 #ifndef _FUSE_INTERNAL_H_
59 #define _FUSE_INTERNAL_H_
61 #include <sys/types.h>
64 #include <sys/vnode.h>
67 #include "fuse_node.h"
70 vfs_isrdonly(struct mount *mp)
72 return ((mp->mnt_flag & MNT_RDONLY) != 0 ? 1 : 0);
75 static __inline struct mount *
76 vnode_mount(struct vnode *vp)
82 vnode_mountedhere(struct vnode *vp)
84 return (vp->v_mountedhere != NULL ? 1 : 0);
87 static __inline enum vtype
88 vnode_vtype(struct vnode *vp)
94 vnode_isvroot(struct vnode *vp)
96 return ((vp->v_vflag & VV_ROOT) != 0 ? 1 : 0);
100 vnode_isreg(struct vnode *vp)
102 return (vp->v_type == VREG ? 1 : 0);
106 vnode_isdir(struct vnode *vp)
108 return (vp->v_type == VDIR ? 1 : 0);
112 vnode_islnk(struct vnode *vp)
114 return (vp->v_type == VLNK ? 1 : 0);
117 static __inline ssize_t
118 uio_resid(struct uio *uio)
120 return (uio->uio_resid);
123 static __inline off_t
124 uio_offset(struct uio *uio)
126 return (uio->uio_offset);
130 uio_setoffset(struct uio *uio, off_t offset)
132 uio->uio_offset = offset;
136 uio_setresid(struct uio *uio, ssize_t resid)
138 uio->uio_resid = resid;
143 #define fuse_timespec_add(vvp, uvp) \
145 (vvp)->tv_sec += (uvp)->tv_sec; \
146 (vvp)->tv_nsec += (uvp)->tv_nsec; \
147 if ((vvp)->tv_nsec >= 1000000000) { \
149 (vvp)->tv_nsec -= 1000000000; \
153 #define fuse_timespec_cmp(tvp, uvp, cmp) \
154 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
155 ((tvp)->tv_nsec cmp (uvp)->tv_nsec) : \
156 ((tvp)->tv_sec cmp (uvp)->tv_sec))
162 fuse_isdeadfs(struct vnode *vp)
164 struct fuse_data *data = fuse_get_mpdata(vnode_mount(vp));
166 return (data->dataflags & FSESS_DEAD);
171 fuse_iosize(struct vnode *vp)
173 return vp->v_mount->mnt_stat.f_iosize;
178 #define FVP_ACCESS_NOOP 0x01
180 #define FACCESS_VA_VALID 0x01
181 #define FACCESS_DO_ACCESS 0x02
182 #define FACCESS_STICKY 0x04
183 #define FACCESS_CHOWN 0x08
184 #define FACCESS_NOCHECKSPY 0x10
185 #define FACCESS_SETGID 0x12
187 #define FACCESS_XQUERIES FACCESS_STICKY | FACCESS_CHOWN | FACCESS_SETGID
189 struct fuse_access_param {
196 fuse_match_cred(struct ucred *basecred, struct ucred *usercred)
198 if (basecred->cr_uid == usercred->cr_uid &&
199 basecred->cr_uid == usercred->cr_ruid &&
200 basecred->cr_uid == usercred->cr_svuid &&
201 basecred->cr_groups[0] == usercred->cr_groups[0] &&
202 basecred->cr_groups[0] == usercred->cr_rgid &&
203 basecred->cr_groups[0] == usercred->cr_svgid)
210 fuse_internal_access(struct vnode *vp,
212 struct fuse_access_param *facp,
220 fuse_internal_attr_fat2vat(struct mount *mp,
221 struct fuse_attr *fat,
224 DEBUGX(FUSE_DEBUG_INTERNAL,
225 "node #%ju, mode 0%o\n", (uintmax_t)fat->ino, fat->mode);
229 vap->va_fsid = mp->mnt_stat.f_fsid.val[0];
230 vap->va_fileid = fat->ino; /* XXX cast from 64 bits to 32 */
231 vap->va_mode = fat->mode & ~S_IFMT;
232 vap->va_nlink = fat->nlink;
233 vap->va_uid = fat->uid;
234 vap->va_gid = fat->gid;
235 vap->va_rdev = fat->rdev;
236 vap->va_size = fat->size;
237 vap->va_atime.tv_sec = fat->atime; /* XXX on some platforms cast from 64 bits to 32 */
238 vap->va_atime.tv_nsec = fat->atimensec;
239 vap->va_mtime.tv_sec = fat->mtime;
240 vap->va_mtime.tv_nsec = fat->mtimensec;
241 vap->va_ctime.tv_sec = fat->ctime;
242 vap->va_ctime.tv_nsec = fat->ctimensec;
243 vap->va_blocksize = PAGE_SIZE;
244 vap->va_type = IFTOVT(fat->mode);
246 #if (S_BLKSIZE == 512)
247 /* Optimize this case */
248 vap->va_bytes = fat->blocks << 9;
250 vap->va_bytes = fat->blocks * S_BLKSIZE;
257 #define cache_attrs(vp, fuse_out) do { \
258 struct timespec uptsp_ ## __func__; \
260 VTOFUD(vp)->cached_attrs_valid.tv_sec = (fuse_out)->attr_valid; \
261 VTOFUD(vp)->cached_attrs_valid.tv_nsec = (fuse_out)->attr_valid_nsec; \
262 nanouptime(&uptsp_ ## __func__); \
264 fuse_timespec_add(&VTOFUD(vp)->cached_attrs_valid, &uptsp_ ## __func__); \
266 fuse_internal_attr_fat2vat(vnode_mount(vp), &(fuse_out)->attr, VTOVA(vp)); \
272 fuse_internal_fsync(struct vnode *vp,
275 struct fuse_filehandle *fufh);
278 fuse_internal_fsync_callback(struct fuse_ticket *tick, struct uio *uio);
282 struct pseudo_dirent {
287 fuse_internal_readdir(struct vnode *vp,
289 struct fuse_filehandle *fufh,
290 struct fuse_iov *cookediov);
293 fuse_internal_readdir_processdata(struct uio *uio,
302 fuse_internal_remove(struct vnode *dvp,
304 struct componentname *cnp,
305 enum fuse_opcode op);
310 fuse_internal_rename(struct vnode *fdvp,
311 struct componentname *fcnp,
313 struct componentname *tcnp);
317 fuse_internal_vnode_disappear(struct vnode *vp);
321 /* entity creation */
325 fuse_internal_checkentry(struct fuse_entry_out *feo, enum vtype vtyp)
327 DEBUGX(FUSE_DEBUG_INTERNAL,
328 "feo=%p, vtype=%d\n", feo, vtyp);
330 if (vtyp != IFTOVT(feo->attr.mode)) {
331 DEBUGX(FUSE_DEBUG_INTERNAL,
332 "EINVAL -- %x != %x\n", vtyp, IFTOVT(feo->attr.mode));
336 if (feo->nodeid == FUSE_NULL_ID) {
337 DEBUGX(FUSE_DEBUG_INTERNAL,
338 "EINVAL -- feo->nodeid is NULL\n");
342 if (feo->nodeid == FUSE_ROOT_ID) {
343 DEBUGX(FUSE_DEBUG_INTERNAL,
344 "EINVAL -- feo->nodeid is FUSE_ROOT_ID\n");
352 fuse_internal_newentry(struct vnode *dvp,
354 struct componentname *cnp,
361 fuse_internal_newentry_makerequest(struct mount *mp,
363 struct componentname *cnp,
367 struct fuse_dispatcher *fdip);
370 fuse_internal_newentry_core(struct vnode *dvp,
372 struct componentname *cnp,
374 struct fuse_dispatcher *fdip);
376 /* entity destruction */
379 fuse_internal_forget_callback(struct fuse_ticket *tick, struct uio *uio);
382 fuse_internal_forget_send(struct mount *mp,
388 /* fuse start/stop */
390 int fuse_internal_init_callback(struct fuse_ticket *tick, struct uio *uio);
391 void fuse_internal_send_init(struct fuse_data *data, struct thread *td);
393 #endif /* _FUSE_INTERNAL_H_ */