ANSIfy.
[dragonfly.git] / sys / vfs / ufs / ufs_vnops.c
CommitLineData
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1/*
2 * Copyright (c) 1982, 1986, 1989, 1993, 1995
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)ufs_vnops.c 8.27 (Berkeley) 5/27/95
39 * $FreeBSD: src/sys/ufs/ufs/ufs_vnops.c,v 1.131.2.8 2003/01/02 17:26:19 bde Exp $
21c8b4bd 40 * $DragonFly: src/sys/vfs/ufs/ufs_vnops.c,v 1.27 2005/07/23 18:08:50 dillon Exp $
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41 */
42
43#include "opt_quota.h"
44#include "opt_suiddir.h"
45#include "opt_ufs.h"
46
47#include <sys/param.h>
48#include <sys/systm.h>
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49#include <sys/kernel.h>
50#include <sys/fcntl.h>
51#include <sys/stat.h>
52#include <sys/buf.h>
53#include <sys/proc.h>
dadab5e9 54#include <sys/namei.h>
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55#include <sys/mount.h>
56#include <sys/unistd.h>
57#include <sys/vnode.h>
58#include <sys/malloc.h>
59#include <sys/dirent.h>
60#include <sys/lockf.h>
61#include <sys/event.h>
62#include <sys/conf.h>
63
64#include <sys/file.h> /* XXX */
21c8b4bd 65#include <sys/jail.h>
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66
67#include <vm/vm.h>
68#include <vm/vm_extern.h>
69
1f2de5d4 70#include <vfs/fifofs/fifo.h>
984263bc 71
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72#include "quota.h"
73#include "inode.h"
74#include "dir.h"
75#include "ufsmount.h"
76#include "ufs_extern.h"
984263bc 77#ifdef UFS_DIRHASH
1f2de5d4 78#include "dirhash.h"
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79#endif
80
a6ee311a
RG
81static int ufs_access (struct vop_access_args *);
82static int ufs_advlock (struct vop_advlock_args *);
83static int ufs_chmod (struct vnode *, int, struct ucred *, struct thread *);
84static int ufs_chown (struct vnode *, uid_t, gid_t, struct ucred *, struct thread *);
85static int ufs_close (struct vop_close_args *);
86static int ufs_create (struct vop_create_args *);
87static int ufs_getattr (struct vop_getattr_args *);
88static int ufs_link (struct vop_link_args *);
89static int ufs_makeinode (int mode, struct vnode *, struct vnode **, struct componentname *);
90static int ufs_missingop (struct vop_generic_args *ap);
91static int ufs_mkdir (struct vop_mkdir_args *);
92static int ufs_mknod (struct vop_mknod_args *);
93static int ufs_mmap (struct vop_mmap_args *);
94static int ufs_open (struct vop_open_args *);
95static int ufs_pathconf (struct vop_pathconf_args *);
96static int ufs_print (struct vop_print_args *);
97static int ufs_readdir (struct vop_readdir_args *);
98static int ufs_readlink (struct vop_readlink_args *);
99static int ufs_remove (struct vop_remove_args *);
100static int ufs_rename (struct vop_rename_args *);
101static int ufs_rmdir (struct vop_rmdir_args *);
102static int ufs_setattr (struct vop_setattr_args *);
103static int ufs_strategy (struct vop_strategy_args *);
104static int ufs_symlink (struct vop_symlink_args *);
105static int ufs_whiteout (struct vop_whiteout_args *);
106static int ufsfifo_close (struct vop_close_args *);
107static int ufsfifo_kqfilter (struct vop_kqfilter_args *);
108static int ufsfifo_read (struct vop_read_args *);
109static int ufsfifo_write (struct vop_write_args *);
110static int ufsspec_close (struct vop_close_args *);
111static int ufsspec_read (struct vop_read_args *);
112static int ufsspec_write (struct vop_write_args *);
113static int filt_ufsread (struct knote *kn, long hint);
114static int filt_ufswrite (struct knote *kn, long hint);
115static int filt_ufsvnode (struct knote *kn, long hint);
116static void filt_ufsdetach (struct knote *kn);
117static int ufs_kqfilter (struct vop_kqfilter_args *ap);
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118
119union _qcvt {
120 int64_t qcvt;
121 int32_t val[2];
122};
123#define SETHIGH(q, h) { \
124 union _qcvt tmp; \
125 tmp.qcvt = (q); \
126 tmp.val[_QUAD_HIGHWORD] = (h); \
127 (q) = tmp.qcvt; \
128}
129#define SETLOW(q, l) { \
130 union _qcvt tmp; \
131 tmp.qcvt = (q); \
132 tmp.val[_QUAD_LOWWORD] = (l); \
133 (q) = tmp.qcvt; \
134}
135#define VN_KNOTE(vp, b) \
136 KNOTE(&vp->v_pollinfo.vpi_selinfo.si_note, (b))
137
138/*
139 * A virgin directory (no blushing please).
140 */
141static struct dirtemplate mastertemplate = {
142 0, 12, DT_DIR, 1, ".",
143 0, DIRBLKSIZ - 12, DT_DIR, 2, ".."
144};
145static struct odirtemplate omastertemplate = {
146 0, 12, 1, ".",
147 0, DIRBLKSIZ - 12, 2, ".."
148};
149
150void
0973c589 151ufs_itimes(struct vnode *vp)
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152{
153 struct inode *ip;
154 struct timespec ts;
155
156 ip = VTOI(vp);
157 if ((ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) == 0)
158 return;
159 if ((vp->v_type == VBLK || vp->v_type == VCHR) && !DOINGSOFTDEP(vp))
160 ip->i_flag |= IN_LAZYMOD;
161 else
162 ip->i_flag |= IN_MODIFIED;
163 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
164 vfs_timestamp(&ts);
165 if (ip->i_flag & IN_ACCESS) {
166 ip->i_atime = ts.tv_sec;
167 ip->i_atimensec = ts.tv_nsec;
168 }
169 if (ip->i_flag & IN_UPDATE) {
170 ip->i_mtime = ts.tv_sec;
171 ip->i_mtimensec = ts.tv_nsec;
172 ip->i_modrev++;
173 }
174 if (ip->i_flag & IN_CHANGE) {
175 ip->i_ctime = ts.tv_sec;
176 ip->i_ctimensec = ts.tv_nsec;
177 }
178 }
179 ip->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE);
180}
181
182/*
183 * Create a regular file
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184 *
185 * ufs_create(struct vnode *a_dvp, struct vnode **a_vpp,
186 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc 187 */
0961aa92 188static
984263bc 189int
0973c589 190ufs_create(struct vop_create_args *ap)
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191{
192 int error;
193
194 error =
195 ufs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode),
196 ap->a_dvp, ap->a_vpp, ap->a_cnp);
197 if (error)
198 return (error);
199 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
200 return (0);
201}
202
203/*
204 * Mknod vnode call
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205 *
206 * ufs_mknod(struct vnode *a_dvp, struct vnode **a_vpp,
207 * struct componentname *a_cnp, struct vattr *a_vap)
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208 */
209/* ARGSUSED */
0961aa92 210static
984263bc 211int
0973c589 212ufs_mknod(struct vop_mknod_args *ap)
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213{
214 struct vattr *vap = ap->a_vap;
215 struct vnode **vpp = ap->a_vpp;
216 struct inode *ip;
217 ino_t ino;
218 int error;
219
220 error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode),
221 ap->a_dvp, vpp, ap->a_cnp);
222 if (error)
223 return (error);
224 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
225 ip = VTOI(*vpp);
226 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
227 if (vap->va_rdev != VNOVAL) {
228 /*
229 * Want to be able to use this to make badblock
230 * inodes, so don't truncate the dev number.
231 */
232 ip->i_rdev = vap->va_rdev;
233 }
234 /*
235 * Remove inode, then reload it through VFS_VGET so it is
236 * checked to see if it is an alias of an existing entry in
237 * the inode cache.
238 */
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239 (*vpp)->v_type = VNON;
240 ino = ip->i_number; /* Save this before vgone() invalidates ip. */
241 vgone(*vpp);
5fd012e0 242 vput(*vpp);
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243 error = VFS_VGET(ap->a_dvp->v_mount, ino, vpp);
244 if (error) {
245 *vpp = NULL;
246 return (error);
247 }
248 return (0);
249}
250
251/*
252 * Open called.
253 *
254 * Nothing to do.
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CP
255 *
256 * ufs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
257 * struct thread *a_td)
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258 */
259/* ARGSUSED */
0961aa92 260static
984263bc 261int
0973c589 262ufs_open(struct vop_open_args *ap)
984263bc 263{
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264 /*
265 * Files marked append-only must be opened for appending.
266 */
267 if ((VTOI(ap->a_vp)->i_flags & APPEND) &&
268 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE)
269 return (EPERM);
270 return (0);
271}
272
273/*
274 * Close called.
275 *
276 * Update the times on the inode.
0973c589
CP
277 *
278 * ufs_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
279 * struct thread *a_td)
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280 */
281/* ARGSUSED */
0961aa92 282static
984263bc 283int
0973c589 284ufs_close(struct vop_close_args *ap)
984263bc 285{
3ff2135f 286 struct vnode *vp = ap->a_vp;
984263bc 287
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MD
288 if (vp->v_usecount > 1)
289 ufs_itimes(vp);
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290 return (0);
291}
292
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293/*
294 * ufs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
295 * struct thread *a_td)
296 */
0961aa92 297static
984263bc 298int
0973c589 299ufs_access(struct vop_access_args *ap)
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MD
300{
301 struct vnode *vp = ap->a_vp;
302 struct inode *ip = VTOI(vp);
303 struct ucred *cred = ap->a_cred;
304 mode_t mask, mode = ap->a_mode;
3ff2135f 305 gid_t *gp;
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MD
306 int i;
307#ifdef QUOTA
308 int error;
309#endif
310
311 /*
f719c866 312 * Disallow write attempts on read-only filesystems;
984263bc 313 * unless the file is a socket, fifo, or a block or
f719c866 314 * character device resident on the filesystem.
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MD
315 */
316 if (mode & VWRITE) {
317 switch (vp->v_type) {
318 case VDIR:
319 case VLNK:
320 case VREG:
321 if (vp->v_mount->mnt_flag & MNT_RDONLY)
322 return (EROFS);
323#ifdef QUOTA
324 if ((error = getinoquota(ip)) != 0)
325 return (error);
326#endif
327 break;
328 default:
329 break;
330 }
331 }
332
333 /* If immutable bit set, nobody gets to write it. */
334 if ((mode & VWRITE) && (ip->i_flags & IMMUTABLE))
335 return (EPERM);
336
337 /* Otherwise, user id 0 always gets access. */
338 if (cred->cr_uid == 0)
339 return (0);
340
341 mask = 0;
342
343 /* Otherwise, check the owner. */
344 if (cred->cr_uid == ip->i_uid) {
345 if (mode & VEXEC)
346 mask |= S_IXUSR;
347 if (mode & VREAD)
348 mask |= S_IRUSR;
349 if (mode & VWRITE)
350 mask |= S_IWUSR;
351 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
352 }
353
354 /* Otherwise, check the groups. */
355 for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++)
356 if (ip->i_gid == *gp) {
357 if (mode & VEXEC)
358 mask |= S_IXGRP;
359 if (mode & VREAD)
360 mask |= S_IRGRP;
361 if (mode & VWRITE)
362 mask |= S_IWGRP;
363 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
364 }
365
366 /* Otherwise, check everyone else. */
367 if (mode & VEXEC)
368 mask |= S_IXOTH;
369 if (mode & VREAD)
370 mask |= S_IROTH;
371 if (mode & VWRITE)
372 mask |= S_IWOTH;
373 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
374}
375
0973c589
CP
376/*
377 * ufs_getattr(struct vnode *a_vp, struct vattr *a_vap,
378 * struct thread *a_td)
379 */
984263bc 380/* ARGSUSED */
0961aa92 381static
984263bc 382int
0973c589 383ufs_getattr(struct vop_getattr_args *ap)
984263bc 384{
3ff2135f
RG
385 struct vnode *vp = ap->a_vp;
386 struct inode *ip = VTOI(vp);
387 struct vattr *vap = ap->a_vap;
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MD
388
389 ufs_itimes(vp);
390 /*
391 * Copy from inode table
392 */
393 vap->va_fsid = dev2udev(ip->i_dev);
394 vap->va_fileid = ip->i_number;
395 vap->va_mode = ip->i_mode & ~IFMT;
396 vap->va_nlink = VFSTOUFS(vp->v_mount)->um_i_effnlink_valid ?
397 ip->i_effnlink : ip->i_nlink;
398 vap->va_uid = ip->i_uid;
399 vap->va_gid = ip->i_gid;
400 vap->va_rdev = ip->i_rdev;
401 vap->va_size = ip->i_din.di_size;
402 vap->va_atime.tv_sec = ip->i_atime;
403 vap->va_atime.tv_nsec = ip->i_atimensec;
404 vap->va_mtime.tv_sec = ip->i_mtime;
405 vap->va_mtime.tv_nsec = ip->i_mtimensec;
406 vap->va_ctime.tv_sec = ip->i_ctime;
407 vap->va_ctime.tv_nsec = ip->i_ctimensec;
408 vap->va_flags = ip->i_flags;
409 vap->va_gen = ip->i_gen;
410 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
411 vap->va_bytes = dbtob((u_quad_t)ip->i_blocks);
412 vap->va_type = IFTOVT(ip->i_mode);
413 vap->va_filerev = ip->i_modrev;
414 return (0);
415}
416
417/*
418 * Set attribute vnode op. called from several syscalls
0973c589
CP
419 *
420 * ufs_setattr(struct vnode *a_vp, struct vattr *a_vap,
421 * struct ucred *a_cred, struct thread *a_td)
984263bc 422 */
0961aa92 423static
984263bc 424int
0973c589 425ufs_setattr(struct vop_setattr_args *ap)
984263bc
MD
426{
427 struct vattr *vap = ap->a_vap;
428 struct vnode *vp = ap->a_vp;
429 struct inode *ip = VTOI(vp);
430 struct ucred *cred = ap->a_cred;
984263bc
MD
431 int error;
432
433 /*
434 * Check for unsettable attributes.
435 */
436 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
437 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
438 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
439 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
440 return (EINVAL);
441 }
442 if (vap->va_flags != VNOVAL) {
443 if (vp->v_mount->mnt_flag & MNT_RDONLY)
444 return (EROFS);
445 if (cred->cr_uid != ip->i_uid &&
dadab5e9 446 (error = suser_cred(cred, PRISON_ROOT)))
984263bc 447 return (error);
21c8b4bd
MD
448 /*
449 * Note that a root chflags becomes a user chflags when
450 * we are jailed, unless the jail.chflags_allowed sysctl
451 * is set.
452 */
453 if (cred->cr_uid == 0 &&
454 (!jailed(cred) || jail_chflags_allowed)) {
984263bc
MD
455 if ((ip->i_flags
456 & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND)) &&
457 securelevel > 0)
458 return (EPERM);
459 ip->i_flags = vap->va_flags;
460 } else {
461 if (ip->i_flags
462 & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
463 (vap->va_flags & UF_SETTABLE) != vap->va_flags)
464 return (EPERM);
465 ip->i_flags &= SF_SETTABLE;
466 ip->i_flags |= (vap->va_flags & UF_SETTABLE);
467 }
468 ip->i_flag |= IN_CHANGE;
469 if (vap->va_flags & (IMMUTABLE | APPEND))
470 return (0);
471 }
472 if (ip->i_flags & (IMMUTABLE | APPEND))
473 return (EPERM);
474 /*
475 * Go through the fields and update iff not VNOVAL.
476 */
477 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
478 if (vp->v_mount->mnt_flag & MNT_RDONLY)
479 return (EROFS);
dadab5e9 480 if ((error = ufs_chown(vp, vap->va_uid, vap->va_gid, cred, ap->a_td)) != 0)
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MD
481 return (error);
482 }
483 if (vap->va_size != VNOVAL) {
484 /*
f719c866 485 * Disallow write attempts on read-only filesystems;
984263bc 486 * unless the file is a socket, fifo, or a block or
f719c866 487 * character device resident on the filesystem.
984263bc
MD
488 */
489 switch (vp->v_type) {
490 case VDIR:
491 return (EISDIR);
492 case VLNK:
493 case VREG:
494 if (vp->v_mount->mnt_flag & MNT_RDONLY)
495 return (EROFS);
496 break;
497 default:
498 break;
499 }
dadab5e9 500 if ((error = UFS_TRUNCATE(vp, vap->va_size, 0, cred, ap->a_td)) != 0)
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MD
501 return (error);
502 }
503 ip = VTOI(vp);
504 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
505 if (vp->v_mount->mnt_flag & MNT_RDONLY)
506 return (EROFS);
507 if (cred->cr_uid != ip->i_uid &&
dadab5e9 508 (error = suser_cred(cred, PRISON_ROOT)) &&
984263bc 509 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
dadab5e9 510 (error = VOP_ACCESS(vp, VWRITE, cred, ap->a_td))))
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MD
511 return (error);
512 if (vap->va_atime.tv_sec != VNOVAL)
513 ip->i_flag |= IN_ACCESS;
514 if (vap->va_mtime.tv_sec != VNOVAL)
515 ip->i_flag |= IN_CHANGE | IN_UPDATE;
516 ufs_itimes(vp);
517 if (vap->va_atime.tv_sec != VNOVAL) {
518 ip->i_atime = vap->va_atime.tv_sec;
519 ip->i_atimensec = vap->va_atime.tv_nsec;
520 }
521 if (vap->va_mtime.tv_sec != VNOVAL) {
522 ip->i_mtime = vap->va_mtime.tv_sec;
523 ip->i_mtimensec = vap->va_mtime.tv_nsec;
524 }
525 error = UFS_UPDATE(vp, 0);
526 if (error)
527 return (error);
528 }
529 error = 0;
530 if (vap->va_mode != (mode_t)VNOVAL) {
531 if (vp->v_mount->mnt_flag & MNT_RDONLY)
532 return (EROFS);
dadab5e9 533 error = ufs_chmod(vp, (int)vap->va_mode, cred, ap->a_td);
984263bc
MD
534 }
535 VN_KNOTE(vp, NOTE_ATTRIB);
536 return (error);
537}
538
539/*
540 * Change the mode on a file.
541 * Inode must be locked before calling.
542 */
543static int
dadab5e9 544ufs_chmod(struct vnode *vp, int mode, struct ucred *cred, struct thread *td)
984263bc 545{
3ff2135f 546 struct inode *ip = VTOI(vp);
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MD
547 int error;
548
549 if (cred->cr_uid != ip->i_uid) {
dadab5e9 550 error = suser_cred(cred, PRISON_ROOT);
984263bc
MD
551 if (error)
552 return (error);
553 }
554 if (cred->cr_uid) {
555 if (vp->v_type != VDIR && (mode & S_ISTXT))
556 return (EFTYPE);
557 if (!groupmember(ip->i_gid, cred) && (mode & ISGID))
558 return (EPERM);
559 }
560 ip->i_mode &= ~ALLPERMS;
561 ip->i_mode |= (mode & ALLPERMS);
562 ip->i_flag |= IN_CHANGE;
563 return (0);
564}
565
566/*
567 * Perform chown operation on inode ip;
568 * inode must be locked prior to call.
569 */
570static int
0973c589
CP
571ufs_chown(struct vnode *vp, uid_t uid, gid_t gid, struct ucred *cred,
572 struct thread *td)
984263bc 573{
3ff2135f 574 struct inode *ip = VTOI(vp);
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MD
575 uid_t ouid;
576 gid_t ogid;
577 int error = 0;
578#ifdef QUOTA
3ff2135f 579 int i;
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580 long change;
581#endif
582
583 if (uid == (uid_t)VNOVAL)
584 uid = ip->i_uid;
585 if (gid == (gid_t)VNOVAL)
586 gid = ip->i_gid;
587 /*
588 * If we don't own the file, are trying to change the owner
589 * of the file, or are not a member of the target group,
590 * the caller must be superuser or the call fails.
591 */
592 if ((cred->cr_uid != ip->i_uid || uid != ip->i_uid ||
a10e3626
DR
593 (gid != ip->i_gid && !(cred->cr_gid == gid ||
594 groupmember((gid_t)gid, cred)))) &&
dadab5e9 595 (error = suser_cred(cred, PRISON_ROOT)))
984263bc
MD
596 return (error);
597 ogid = ip->i_gid;
598 ouid = ip->i_uid;
599#ifdef QUOTA
600 if ((error = getinoquota(ip)) != 0)
601 return (error);
602 if (ouid == uid) {
603 dqrele(vp, ip->i_dquot[USRQUOTA]);
604 ip->i_dquot[USRQUOTA] = NODQUOT;
605 }
606 if (ogid == gid) {
607 dqrele(vp, ip->i_dquot[GRPQUOTA]);
608 ip->i_dquot[GRPQUOTA] = NODQUOT;
609 }
610 change = ip->i_blocks;
611 (void) chkdq(ip, -change, cred, CHOWN);
612 (void) chkiq(ip, -1, cred, CHOWN);
613 for (i = 0; i < MAXQUOTAS; i++) {
614 dqrele(vp, ip->i_dquot[i]);
615 ip->i_dquot[i] = NODQUOT;
616 }
617#endif
618 ip->i_gid = gid;
619 ip->i_uid = uid;
620#ifdef QUOTA
621 if ((error = getinoquota(ip)) == 0) {
622 if (ouid == uid) {
623 dqrele(vp, ip->i_dquot[USRQUOTA]);
624 ip->i_dquot[USRQUOTA] = NODQUOT;
625 }
626 if (ogid == gid) {
627 dqrele(vp, ip->i_dquot[GRPQUOTA]);
628 ip->i_dquot[GRPQUOTA] = NODQUOT;
629 }
630 if ((error = chkdq(ip, change, cred, CHOWN)) == 0) {
631 if ((error = chkiq(ip, 1, cred, CHOWN)) == 0)
632 goto good;
633 else
634 (void) chkdq(ip, -change, cred, CHOWN|FORCE);
635 }
636 for (i = 0; i < MAXQUOTAS; i++) {
637 dqrele(vp, ip->i_dquot[i]);
638 ip->i_dquot[i] = NODQUOT;
639 }
640 }
641 ip->i_gid = ogid;
642 ip->i_uid = ouid;
643 if (getinoquota(ip) == 0) {
644 if (ouid == uid) {
645 dqrele(vp, ip->i_dquot[USRQUOTA]);
646 ip->i_dquot[USRQUOTA] = NODQUOT;
647 }
648 if (ogid == gid) {
649 dqrele(vp, ip->i_dquot[GRPQUOTA]);
650 ip->i_dquot[GRPQUOTA] = NODQUOT;
651 }
652 (void) chkdq(ip, change, cred, FORCE|CHOWN);
653 (void) chkiq(ip, 1, cred, FORCE|CHOWN);
654 (void) getinoquota(ip);
655 }
656 return (error);
657good:
658 if (getinoquota(ip))
659 panic("ufs_chown: lost quota");
660#endif /* QUOTA */
661 ip->i_flag |= IN_CHANGE;
662 if (cred->cr_uid != 0 && (ouid != uid || ogid != gid))
663 ip->i_mode &= ~(ISUID | ISGID);
664 return (0);
665}
666
667/*
668 * Mmap a file
669 *
670 * NB Currently unsupported.
0973c589
CP
671 *
672 * ufs_mmap(struct vnode *a_vp, int a_fflags, struct ucred *a_cred,
673 * struct thread *a_td)
984263bc
MD
674 */
675/* ARGSUSED */
0961aa92 676static
984263bc 677int
0973c589 678ufs_mmap(struct vop_mmap_args *ap)
984263bc 679{
984263bc
MD
680 return (EINVAL);
681}
682
0973c589
CP
683/*
684 * ufs_remove(struct vnode *a_dvp, struct vnode *a_vp,
685 * struct componentname *a_cnp)
686 */
0961aa92 687static
984263bc 688int
0973c589 689ufs_remove(struct vop_remove_args *ap)
984263bc
MD
690{
691 struct inode *ip;
692 struct vnode *vp = ap->a_vp;
693 struct vnode *dvp = ap->a_dvp;
694 int error;
695
696 ip = VTOI(vp);
697 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
698 (VTOI(dvp)->i_flags & APPEND)) {
699 error = EPERM;
700 goto out;
701 }
702 error = ufs_dirremove(dvp, ip, ap->a_cnp->cn_flags, 0);
703 VN_KNOTE(vp, NOTE_DELETE);
704 VN_KNOTE(dvp, NOTE_WRITE);
705out:
706 return (error);
707}
708
709/*
710 * link vnode call
0973c589
CP
711 *
712 * ufs_link(struct vnode *a_tdvp, struct vnode *a_vp,
713 * struct componentname *a_cnp)
984263bc 714 */
0961aa92 715static
984263bc 716int
0973c589 717ufs_link(struct vop_link_args *ap)
984263bc
MD
718{
719 struct vnode *vp = ap->a_vp;
720 struct vnode *tdvp = ap->a_tdvp;
721 struct componentname *cnp = ap->a_cnp;
dadab5e9 722 struct thread *td = cnp->cn_td;
984263bc
MD
723 struct inode *ip;
724 struct direct newdir;
725 int error;
726
984263bc
MD
727 if (tdvp->v_mount != vp->v_mount) {
728 error = EXDEV;
729 goto out2;
730 }
5fd012e0 731 if (tdvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE, td))) {
984263bc
MD
732 goto out2;
733 }
734 ip = VTOI(vp);
735 if ((nlink_t)ip->i_nlink >= LINK_MAX) {
736 error = EMLINK;
737 goto out1;
738 }
739 if (ip->i_flags & (IMMUTABLE | APPEND)) {
740 error = EPERM;
741 goto out1;
742 }
743 ip->i_effnlink++;
744 ip->i_nlink++;
745 ip->i_flag |= IN_CHANGE;
746 if (DOINGSOFTDEP(vp))
747 softdep_change_linkcnt(ip);
748 error = UFS_UPDATE(vp, !(DOINGSOFTDEP(vp) | DOINGASYNC(vp)));
749 if (!error) {
750 ufs_makedirentry(ip, cnp, &newdir);
751 error = ufs_direnter(tdvp, vp, &newdir, cnp, NULL);
752 }
753
754 if (error) {
755 ip->i_effnlink--;
756 ip->i_nlink--;
757 ip->i_flag |= IN_CHANGE;
758 if (DOINGSOFTDEP(vp))
759 softdep_change_linkcnt(ip);
760 }
761out1:
762 if (tdvp != vp)
5fd012e0 763 VOP_UNLOCK(vp, 0, td);
984263bc
MD
764out2:
765 VN_KNOTE(vp, NOTE_LINK);
766 VN_KNOTE(tdvp, NOTE_WRITE);
767 return (error);
768}
769
770/*
771 * whiteout vnode call
0973c589
CP
772 *
773 * ufs_whiteout(struct vnode *a_dvp, struct componentname *a_cnp, int a_flags)
984263bc 774 */
0961aa92 775static
984263bc 776int
0973c589 777ufs_whiteout(struct vop_whiteout_args *ap)
984263bc
MD
778{
779 struct vnode *dvp = ap->a_dvp;
780 struct componentname *cnp = ap->a_cnp;
781 struct direct newdir;
782 int error = 0;
783
784 switch (ap->a_flags) {
2b69e610 785 case NAMEI_LOOKUP:
984263bc
MD
786 /* 4.4 format directories support whiteout operations */
787 if (dvp->v_mount->mnt_maxsymlinklen > 0)
788 return (0);
789 return (EOPNOTSUPP);
790
2b69e610 791 case NAMEI_CREATE:
984263bc
MD
792 /* create a new directory whiteout */
793#ifdef DIAGNOSTIC
984263bc
MD
794 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
795 panic("ufs_whiteout: old format filesystem");
796#endif
797
798 newdir.d_ino = WINO;
799 newdir.d_namlen = cnp->cn_namelen;
800 bcopy(cnp->cn_nameptr, newdir.d_name, (unsigned)cnp->cn_namelen + 1);
801 newdir.d_type = DT_WHT;
802 error = ufs_direnter(dvp, NULL, &newdir, cnp, NULL);
803 break;
804
2b69e610 805 case NAMEI_DELETE:
984263bc
MD
806 /* remove an existing directory whiteout */
807#ifdef DIAGNOSTIC
808 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
809 panic("ufs_whiteout: old format filesystem");
810#endif
811
2b69e610 812 cnp->cn_flags &= ~CNP_DOWHITEOUT;
984263bc
MD
813 error = ufs_dirremove(dvp, NULL, cnp->cn_flags, 0);
814 break;
815 default:
816 panic("ufs_whiteout: unknown op");
817 }
818 return (error);
819}
820
821/*
822 * Rename system call.
823 * rename("foo", "bar");
824 * is essentially
825 * unlink("bar");
826 * link("foo", "bar");
827 * unlink("foo");
828 * but ``atomically''. Can't do full commit without saving state in the
829 * inode on disk which isn't feasible at this time. Best we can do is
830 * always guarantee the target exists.
831 *
832 * Basic algorithm is:
833 *
834 * 1) Bump link count on source while we're linking it to the
835 * target. This also ensure the inode won't be deleted out
836 * from underneath us while we work (it may be truncated by
837 * a concurrent `trunc' or `open' for creation).
838 * 2) Link source to destination. If destination already exists,
839 * delete it first.
840 * 3) Unlink source reference to inode if still around. If a
841 * directory was moved and the parent of the destination
842 * is different from the source, patch the ".." entry in the
843 * directory.
0973c589
CP
844 *
845 * ufs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
846 * struct componentname *a_fcnp, struct vnode *a_tdvp,
847 * struct vnode *a_tvp, struct componentname *a_tcnp)
984263bc 848 */
0961aa92 849static
984263bc 850int
0973c589 851ufs_rename(struct vop_rename_args *ap)
984263bc
MD
852{
853 struct vnode *tvp = ap->a_tvp;
3ff2135f 854 struct vnode *tdvp = ap->a_tdvp;
984263bc
MD
855 struct vnode *fvp = ap->a_fvp;
856 struct vnode *fdvp = ap->a_fdvp;
857 struct componentname *tcnp = ap->a_tcnp;
858 struct componentname *fcnp = ap->a_fcnp;
dadab5e9 859 struct thread *td = fcnp->cn_td;
984263bc
MD
860 struct inode *ip, *xp, *dp;
861 struct direct newdir;
9ab06300
MD
862 ino_t oldparent = 0, newparent = 0;
863 int doingdirectory = 0;
984263bc
MD
864 int error = 0, ioflag;
865
984263bc
MD
866 /*
867 * Check for cross-device rename.
868 */
869 if ((fvp->v_mount != tdvp->v_mount) ||
870 (tvp && (fvp->v_mount != tvp->v_mount))) {
871 error = EXDEV;
872abortit:
873 if (tdvp == tvp)
874 vrele(tdvp);
875 else
876 vput(tdvp);
877 if (tvp)
878 vput(tvp);
879 vrele(fdvp);
880 vrele(fvp);
881 return (error);
882 }
883
884 if (tvp && ((VTOI(tvp)->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
885 (VTOI(tdvp)->i_flags & APPEND))) {
886 error = EPERM;
887 goto abortit;
888 }
889
890 /*
891 * Renaming a file to itself has no effect. The upper layers should
892 * not call us in that case. Temporarily just warn if they do.
893 */
894 if (fvp == tvp) {
895 printf("ufs_rename: fvp == tvp (can't happen)\n");
896 error = 0;
897 goto abortit;
898 }
899
5fd012e0 900 if ((error = vn_lock(fvp, LK_EXCLUSIVE, td)) != 0)
984263bc 901 goto abortit;
fad57d0e
MD
902
903 /*
904 * Note: now that fvp is locked we have to be sure to unlock it before
905 * using the 'abortit' target.
906 */
984263bc
MD
907 dp = VTOI(fdvp);
908 ip = VTOI(fvp);
909 if (ip->i_nlink >= LINK_MAX) {
5fd012e0 910 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
911 error = EMLINK;
912 goto abortit;
913 }
914 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))
915 || (dp->i_flags & APPEND)) {
5fd012e0 916 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
917 error = EPERM;
918 goto abortit;
919 }
920 if ((ip->i_mode & IFMT) == IFDIR) {
921 /*
922 * Avoid ".", "..", and aliases of "." for obvious reasons.
923 */
924 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
2b69e610 925 dp == ip || (fcnp->cn_flags | tcnp->cn_flags) & CNP_ISDOTDOT ||
984263bc 926 (ip->i_flag & IN_RENAME)) {
5fd012e0 927 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
928 error = EINVAL;
929 goto abortit;
930 }
931 ip->i_flag |= IN_RENAME;
932 oldparent = dp->i_number;
933 doingdirectory = 1;
934 }
935 VN_KNOTE(fdvp, NOTE_WRITE); /* XXX right place? */
984263bc
MD
936
937 /*
fad57d0e
MD
938 * fvp still locked. ip->i_flag has IN_RENAME set if doingdirectory.
939 * Cleanup fvp requirements so we can unlock it.
940 *
941 * tvp and tdvp are locked. tvp may be NULL. Now that dp and xp
942 * is setup we can use the 'bad' target if we unlock fvp. We cannot
943 * use the abortit target anymore because of IN_RENAME.
984263bc
MD
944 */
945 dp = VTOI(tdvp);
984263bc
MD
946 if (tvp)
947 xp = VTOI(tvp);
fad57d0e
MD
948 else
949 xp = NULL;
984263bc
MD
950
951 /*
952 * 1) Bump link count while we're moving stuff
953 * around. If we crash somewhere before
954 * completing our work, the link count
955 * may be wrong, but correctable.
956 */
957 ip->i_effnlink++;
958 ip->i_nlink++;
959 ip->i_flag |= IN_CHANGE;
960 if (DOINGSOFTDEP(fvp))
961 softdep_change_linkcnt(ip);
962 if ((error = UFS_UPDATE(fvp, !(DOINGSOFTDEP(fvp) |
963 DOINGASYNC(fvp)))) != 0) {
5fd012e0 964 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
965 goto bad;
966 }
967
968 /*
969 * If ".." must be changed (ie the directory gets a new
970 * parent) then the source directory must not be in the
971 * directory heirarchy above the target, as this would
972 * orphan everything below the source directory. Also
973 * the user must have write permission in the source so
974 * as to be able to change "..". We must repeat the call
975 * to namei, as the parent directory is unlocked by the
976 * call to checkpath().
977 */
dadab5e9 978 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_td);
5fd012e0 979 VOP_UNLOCK(fvp, 0, td);
fad57d0e
MD
980
981 /*
982 * We are now back to where we were in that fvp, fdvp are unlocked
983 * and tvp, tdvp are locked. tvp may be NULL. IN_RENAME may be
984 * set. Only the bad target or, if we clean up tvp and tdvp, the
985 * out target, may be used.
986 */
984263bc
MD
987 if (oldparent != dp->i_number)
988 newparent = dp->i_number;
989 if (doingdirectory && newparent) {
990 if (error) /* write access check above */
991 goto bad;
fad57d0e
MD
992
993 /*
994 * Once we start messing with tvp and tdvp we cannot use the
995 * 'bad' target, only finish cleaning tdvp and tvp up and
996 * use the 'out' target.
997 *
998 * This cleans up tvp.
999 */
1000 if (xp != NULL) {
984263bc 1001 vput(tvp);
fad57d0e
MD
1002 xp = NULL;
1003 }
1004
1005 /*
1006 * This is a real mess. ufs_checkpath vput's the target
1007 * directory so retain an extra ref and note that tdvp will
1008 * lose its lock on return. This leaves us with one good
1009 * ref after ufs_checkpath returns.
1010 */
1011 vref(tdvp);
984263bc 1012 error = ufs_checkpath(ip, dp, tcnp->cn_cred);
fad57d0e
MD
1013 tcnp->cn_flags |= CNP_PDIRUNLOCK;
1014 if (error) {
1015 vrele(tdvp);
984263bc 1016 goto out;
fad57d0e
MD
1017 }
1018
1019 /*
1020 * relookup no longer messes with tdvp's refs. tdvp must be
1021 * unlocked on entry and will be locked on a successful
1022 * return.
1023 */
984263bc 1024 error = relookup(tdvp, &tvp, tcnp);
fad57d0e
MD
1025 if (error) {
1026 if (tcnp->cn_flags & CNP_PDIRUNLOCK)
1027 vrele(tdvp);
1028 else
1029 vput(tdvp);
984263bc 1030 goto out;
fad57d0e
MD
1031 }
1032 KKASSERT((tcnp->cn_flags & CNP_PDIRUNLOCK) == 0);
984263bc 1033 dp = VTOI(tdvp);
984263bc
MD
1034 if (tvp)
1035 xp = VTOI(tvp);
1036 }
fad57d0e
MD
1037
1038 /*
1039 * We are back to fvp, fdvp unlocked, tvp, tdvp locked. tvp may
1040 * be NULL (xp will also be NULL in that case), and IN_RENAME will
1041 * be set if doingdirectory. This means we can use the 'bad' target
1042 * again.
1043 */
1044
984263bc
MD
1045 /*
1046 * 2) If target doesn't exist, link the target
1047 * to the source and unlink the source.
1048 * Otherwise, rewrite the target directory
1049 * entry to reference the source inode and
1050 * expunge the original entry's existence.
1051 */
1052 if (xp == NULL) {
1053 if (dp->i_dev != ip->i_dev)
1054 panic("ufs_rename: EXDEV");
1055 /*
1056 * Account for ".." in new directory.
1057 * When source and destination have the same
1058 * parent we don't fool with the link count.
1059 */
1060 if (doingdirectory && newparent) {
1061 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1062 error = EMLINK;
1063 goto bad;
1064 }
1065 dp->i_effnlink++;
1066 dp->i_nlink++;
1067 dp->i_flag |= IN_CHANGE;
1068 if (DOINGSOFTDEP(tdvp))
1069 softdep_change_linkcnt(dp);
1070 error = UFS_UPDATE(tdvp, !(DOINGSOFTDEP(tdvp) |
1071 DOINGASYNC(tdvp)));
1072 if (error)
1073 goto bad;
1074 }
1075 ufs_makedirentry(ip, tcnp, &newdir);
1076 error = ufs_direnter(tdvp, NULL, &newdir, tcnp, NULL);
1077 if (error) {
1078 if (doingdirectory && newparent) {
1079 dp->i_effnlink--;
1080 dp->i_nlink--;
1081 dp->i_flag |= IN_CHANGE;
1082 if (DOINGSOFTDEP(tdvp))
1083 softdep_change_linkcnt(dp);
1084 (void)UFS_UPDATE(tdvp, 1);
1085 }
1086 goto bad;
1087 }
1088 VN_KNOTE(tdvp, NOTE_WRITE);
1089 vput(tdvp);
1090 } else {
1091 if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
1092 panic("ufs_rename: EXDEV");
1093 /*
1094 * Short circuit rename(foo, foo).
1095 */
1096 if (xp->i_number == ip->i_number)
1097 panic("ufs_rename: same file");
1098 /*
1099 * If the parent directory is "sticky", then the user must
1100 * own the parent directory, or the destination of the rename,
1101 * otherwise the destination may not be changed (except by
1102 * root). This implements append-only directories.
1103 */
1104 if ((dp->i_mode & S_ISTXT) && tcnp->cn_cred->cr_uid != 0 &&
1105 tcnp->cn_cred->cr_uid != dp->i_uid &&
1106 xp->i_uid != tcnp->cn_cred->cr_uid) {
1107 error = EPERM;
1108 goto bad;
1109 }
1110 /*
1111 * Target must be empty if a directory and have no links
1112 * to it. Also, ensure source and target are compatible
1113 * (both directories, or both not directories).
8e005a45
MD
1114 *
1115 * Purge the file or directory being replaced from the
1116 * nameccache.
984263bc
MD
1117 */
1118 if ((xp->i_mode&IFMT) == IFDIR) {
1119 if ((xp->i_effnlink > 2) ||
1120 !ufs_dirempty(xp, dp->i_number, tcnp->cn_cred)) {
1121 error = ENOTEMPTY;
1122 goto bad;
1123 }
1124 if (!doingdirectory) {
1125 error = ENOTDIR;
1126 goto bad;
1127 }
fad57d0e 1128 /* cache_purge removed - handled by VFS compat layer */
8e005a45 1129 } else if (doingdirectory == 0) {
fad57d0e 1130 /* cache_purge removed - handled by VFS compat layer */
8e005a45 1131 } else {
984263bc
MD
1132 error = EISDIR;
1133 goto bad;
1134 }
9ab06300
MD
1135 /*
1136 * note: inode passed to ufs_dirrewrite() is 0 for a
1137 * non-directory file rename, 1 for a directory rename
1138 * in the same directory, and > 1 for an inode representing
1139 * the new directory.
1140 */
984263bc
MD
1141 error = ufs_dirrewrite(dp, xp, ip->i_number,
1142 IFTODT(ip->i_mode),
9ab06300
MD
1143 (doingdirectory && newparent) ?
1144 newparent : (ino_t)doingdirectory);
984263bc
MD
1145 if (error)
1146 goto bad;
1147 if (doingdirectory) {
1148 if (!newparent) {
1149 dp->i_effnlink--;
1150 if (DOINGSOFTDEP(tdvp))
1151 softdep_change_linkcnt(dp);
1152 }
1153 xp->i_effnlink--;
1154 if (DOINGSOFTDEP(tvp))
1155 softdep_change_linkcnt(xp);
1156 }
1157 if (doingdirectory && !DOINGSOFTDEP(tvp)) {
1158 /*
1159 * Truncate inode. The only stuff left in the directory
1160 * is "." and "..". The "." reference is inconsequential
1161 * since we are quashing it. We have removed the "."
1162 * reference and the reference in the parent directory,
1163 * but there may be other hard links. The soft
1164 * dependency code will arrange to do these operations
1165 * after the parent directory entry has been deleted on
1166 * disk, so when running with that code we avoid doing
1167 * them now.
1168 */
1169 if (!newparent) {
1170 dp->i_nlink--;
1171 dp->i_flag |= IN_CHANGE;
1172 }
1173 xp->i_nlink--;
1174 xp->i_flag |= IN_CHANGE;
1175 ioflag = DOINGASYNC(tvp) ? 0 : IO_SYNC;
1176 if ((error = UFS_TRUNCATE(tvp, (off_t)0, ioflag,
dadab5e9 1177 tcnp->cn_cred, tcnp->cn_td)) != 0)
984263bc
MD
1178 goto bad;
1179 }
1180 VN_KNOTE(tdvp, NOTE_WRITE);
1181 vput(tdvp);
1182 VN_KNOTE(tvp, NOTE_DELETE);
1183 vput(tvp);
1184 xp = NULL;
1185 }
1186
fad57d0e
MD
1187 /*
1188 * tvp and tdvp have been cleaned up. only fvp and fdvp (both
1189 * unlocked) remain. We are about to overwrite fvp but we have to
1190 * keep 'ip' intact so we cannot release the old fvp, which is still
1191 * refd and accessible via ap->a_fvp.
1192 *
1193 * This means we cannot use either 'bad' or 'out' to cleanup any
1194 * more.
1195 */
1196
984263bc
MD
1197 /*
1198 * 3) Unlink the source.
1199 */
2b69e610 1200 fcnp->cn_flags &= ~CNP_MODMASK;
fad57d0e 1201 fcnp->cn_flags |= CNP_LOCKPARENT;
984263bc 1202 error = relookup(fdvp, &fvp, fcnp);
fad57d0e 1203 if (error || fvp == NULL) {
984263bc 1204 /*
fad57d0e
MD
1205 * From name has disappeared. IN_RENAME will not be set if
1206 * we get past the panic so we don't have to clean it up.
984263bc
MD
1207 */
1208 if (doingdirectory)
1209 panic("ufs_rename: lost dir entry");
1210 vrele(ap->a_fvp);
fad57d0e
MD
1211 if (fcnp->cn_flags & CNP_PDIRUNLOCK)
1212 vrele(fdvp);
1213 else
1214 vput(fdvp);
1215 return(0);
984263bc 1216 }
fad57d0e
MD
1217 KKASSERT((fcnp->cn_flags & CNP_PDIRUNLOCK) == 0);
1218
1219 /*
1220 * fdvp and fvp are locked.
1221 */
1222 xp = VTOI(fvp);
1223 dp = VTOI(fdvp);
1224
984263bc
MD
1225 /*
1226 * Ensure that the directory entry still exists and has not
1227 * changed while the new name has been entered. If the source is
1228 * a file then the entry may have been unlinked or renamed. In
1229 * either case there is no further work to be done. If the source
1230 * is a directory then it cannot have been rmdir'ed; the IN_RENAME
1231 * flag ensures that it cannot be moved by another rename or removed
fad57d0e 1232 * by a rmdir. Cleanup IN_RENAME.
984263bc
MD
1233 */
1234 if (xp != ip) {
1235 if (doingdirectory)
1236 panic("ufs_rename: lost dir entry");
1237 } else {
1238 /*
1239 * If the source is a directory with a
1240 * new parent, the link count of the old
1241 * parent directory must be decremented
1242 * and ".." set to point to the new parent.
1243 */
1244 if (doingdirectory && newparent) {
1245 xp->i_offset = mastertemplate.dot_reclen;
1246 ufs_dirrewrite(xp, dp, newparent, DT_DIR, 0);
fad57d0e 1247 /* cache_purge removed - handled by VFS compat layer */
984263bc
MD
1248 }
1249 error = ufs_dirremove(fdvp, xp, fcnp->cn_flags, 0);
1250 xp->i_flag &= ~IN_RENAME;
1251 }
8e005a45 1252
984263bc 1253 VN_KNOTE(fvp, NOTE_RENAME);
fad57d0e
MD
1254 vput(fdvp);
1255 vput(fvp);
984263bc
MD
1256 vrele(ap->a_fvp);
1257 return (error);
1258
1259bad:
1260 if (xp)
1261 vput(ITOV(xp));
1262 vput(ITOV(dp));
1263out:
1264 if (doingdirectory)
1265 ip->i_flag &= ~IN_RENAME;
5fd012e0 1266 if (vn_lock(fvp, LK_EXCLUSIVE, td) == 0) {
984263bc
MD
1267 ip->i_effnlink--;
1268 ip->i_nlink--;
1269 ip->i_flag |= IN_CHANGE;
1270 ip->i_flag &= ~IN_RENAME;
1271 if (DOINGSOFTDEP(fvp))
1272 softdep_change_linkcnt(ip);
1273 vput(fvp);
fad57d0e 1274 } else {
984263bc 1275 vrele(fvp);
fad57d0e 1276 }
984263bc
MD
1277 return (error);
1278}
1279
1280/*
1281 * Mkdir system call
0973c589
CP
1282 *
1283 * ufs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
1284 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc 1285 */
0961aa92 1286static
984263bc 1287int
0973c589 1288ufs_mkdir(struct vop_mkdir_args *ap)
984263bc 1289{
3ff2135f
RG
1290 struct vnode *dvp = ap->a_dvp;
1291 struct vattr *vap = ap->a_vap;
1292 struct componentname *cnp = ap->a_cnp;
1293 struct inode *ip, *dp;
984263bc
MD
1294 struct vnode *tvp;
1295 struct buf *bp;
1296 struct dirtemplate dirtemplate, *dtp;
1297 struct direct newdir;
1298 int error, dmode;
1299 long blkoff;
1300
984263bc
MD
1301 dp = VTOI(dvp);
1302 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1303 error = EMLINK;
1304 goto out;
1305 }
1306 dmode = vap->va_mode & 0777;
1307 dmode |= IFDIR;
1308 /*
1309 * Must simulate part of ufs_makeinode here to acquire the inode,
1310 * but not have it entered in the parent directory. The entry is
1311 * made later after writing "." and ".." entries.
1312 */
1313 error = UFS_VALLOC(dvp, dmode, cnp->cn_cred, &tvp);
1314 if (error)
1315 goto out;
1316 ip = VTOI(tvp);
1317 ip->i_gid = dp->i_gid;
1318#ifdef SUIDDIR
1319 {
1320#ifdef QUOTA
1321 struct ucred ucred, *ucp;
1322 ucp = cnp->cn_cred;
1323#endif
1324 /*
1325 * If we are hacking owners here, (only do this where told to)
1326 * and we are not giving it TO root, (would subvert quotas)
1327 * then go ahead and give it to the other user.
1328 * The new directory also inherits the SUID bit.
1329 * If user's UID and dir UID are the same,
1330 * 'give it away' so that the SUID is still forced on.
1331 */
1332 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
1333 (dp->i_mode & ISUID) && dp->i_uid) {
1334 dmode |= ISUID;
1335 ip->i_uid = dp->i_uid;
1336#ifdef QUOTA
1337 if (dp->i_uid != cnp->cn_cred->cr_uid) {
1338 /*
1339 * Make sure the correct user gets charged
1340 * for the space.
1341 * Make a dummy credential for the victim.
1342 * XXX This seems to never be accessed out of
1343 * our context so a stack variable is ok.
1344 */
1345 ucred.cr_ref = 1;
1346 ucred.cr_uid = ip->i_uid;
1347 ucred.cr_ngroups = 1;
1348 ucred.cr_groups[0] = dp->i_gid;
1349 ucp = &ucred;
1350 }
1351#endif
1352 } else
1353 ip->i_uid = cnp->cn_cred->cr_uid;
1354#ifdef QUOTA
1355 if ((error = getinoquota(ip)) ||
1356 (error = chkiq(ip, 1, ucp, 0))) {
1357 UFS_VFREE(tvp, ip->i_number, dmode);
1358 vput(tvp);
1359 return (error);
1360 }
1361#endif
1362 }
1363#else /* !SUIDDIR */
1364 ip->i_uid = cnp->cn_cred->cr_uid;
1365#ifdef QUOTA
1366 if ((error = getinoquota(ip)) ||
1367 (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
1368 UFS_VFREE(tvp, ip->i_number, dmode);
1369 vput(tvp);
1370 return (error);
1371 }
1372#endif
1373#endif /* !SUIDDIR */
1374 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
1375 ip->i_mode = dmode;
1376 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */
1377 ip->i_effnlink = 2;
1378 ip->i_nlink = 2;
1379 if (DOINGSOFTDEP(tvp))
1380 softdep_change_linkcnt(ip);
2b69e610 1381 if (cnp->cn_flags & CNP_ISWHITEOUT)
984263bc
MD
1382 ip->i_flags |= UF_OPAQUE;
1383
1384 /*
1385 * Bump link count in parent directory to reflect work done below.
1386 * Should be done before reference is created so cleanup is
1387 * possible if we crash.
1388 */
1389 dp->i_effnlink++;
1390 dp->i_nlink++;
1391 dp->i_flag |= IN_CHANGE;
1392 if (DOINGSOFTDEP(dvp))
1393 softdep_change_linkcnt(dp);
1394 error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(dvp) | DOINGASYNC(dvp)));
1395 if (error)
1396 goto bad;
1397
1398 /*
1399 * Initialize directory with "." and ".." from static template.
1400 */
1401 if (dvp->v_mount->mnt_maxsymlinklen > 0
1402 )
1403 dtp = &mastertemplate;
1404 else
1405 dtp = (struct dirtemplate *)&omastertemplate;
1406 dirtemplate = *dtp;
1407 dirtemplate.dot_ino = ip->i_number;
1408 dirtemplate.dotdot_ino = dp->i_number;
1409 if ((error = VOP_BALLOC(tvp, (off_t)0, DIRBLKSIZ, cnp->cn_cred,
1410 B_CLRBUF, &bp)) != 0)
1411 goto bad;
1412 ip->i_size = DIRBLKSIZ;
1413 ip->i_flag |= IN_CHANGE | IN_UPDATE;
1414 vnode_pager_setsize(tvp, (u_long)ip->i_size);
1415 bcopy((caddr_t)&dirtemplate, (caddr_t)bp->b_data, sizeof dirtemplate);
1416 if (DOINGSOFTDEP(tvp)) {
1417 /*
1418 * Ensure that the entire newly allocated block is a
1419 * valid directory so that future growth within the
1420 * block does not have to ensure that the block is
1421 * written before the inode.
1422 */
1423 blkoff = DIRBLKSIZ;
1424 while (blkoff < bp->b_bcount) {
1425 ((struct direct *)
1426 (bp->b_data + blkoff))->d_reclen = DIRBLKSIZ;
1427 blkoff += DIRBLKSIZ;
1428 }
1429 }
1430 if ((error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) |
1431 DOINGASYNC(tvp)))) != 0) {
1432 (void)VOP_BWRITE(bp->b_vp, bp);
1433 goto bad;
1434 }
1435 /*
1436 * Directory set up, now install its entry in the parent directory.
1437 *
1438 * If we are not doing soft dependencies, then we must write out the
1439 * buffer containing the new directory body before entering the new
1440 * name in the parent. If we are doing soft dependencies, then the
1441 * buffer containing the new directory body will be passed to and
1442 * released in the soft dependency code after the code has attached
1443 * an appropriate ordering dependency to the buffer which ensures that
1444 * the buffer is written before the new name is written in the parent.
1445 */
1446 if (DOINGASYNC(dvp))
1447 bdwrite(bp);
1448 else if (!DOINGSOFTDEP(dvp) && ((error = VOP_BWRITE(bp->b_vp, bp))))
1449 goto bad;
1450 ufs_makedirentry(ip, cnp, &newdir);
1451 error = ufs_direnter(dvp, tvp, &newdir, cnp, bp);
1452
1453bad:
1454 if (error == 0) {
1455 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
1456 *ap->a_vpp = tvp;
1457 } else {
1458 dp->i_effnlink--;
1459 dp->i_nlink--;
1460 dp->i_flag |= IN_CHANGE;
1461 if (DOINGSOFTDEP(dvp))
1462 softdep_change_linkcnt(dp);
1463 /*
1464 * No need to do an explicit VOP_TRUNCATE here, vrele will
1465 * do this for us because we set the link count to 0.
1466 */
1467 ip->i_effnlink = 0;
1468 ip->i_nlink = 0;
1469 ip->i_flag |= IN_CHANGE;
1470 if (DOINGSOFTDEP(tvp))
1471 softdep_change_linkcnt(ip);
1472 vput(tvp);
1473 }
1474out:
1475 return (error);
1476}
1477
1478/*
1479 * Rmdir system call.
0973c589
CP
1480 *
1481 * ufs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
1482 * struct componentname *a_cnp)
984263bc 1483 */
0961aa92 1484static
984263bc 1485int
0973c589 1486ufs_rmdir(struct vop_rmdir_args *ap)
984263bc
MD
1487{
1488 struct vnode *vp = ap->a_vp;
1489 struct vnode *dvp = ap->a_dvp;
1490 struct componentname *cnp = ap->a_cnp;
1491 struct inode *ip, *dp;
1492 int error, ioflag;
1493
1494 ip = VTOI(vp);
1495 dp = VTOI(dvp);
1496
1497 /*
1498 * Do not remove a directory that is in the process of being renamed.
1499 * Verify the directory is empty (and valid). Rmdir ".." will not be
1500 * valid since ".." will contain a reference to the current directory
1501 * and thus be non-empty. Do not allow the removal of mounted on
1502 * directories (this can happen when an NFS exported filesystem
1503 * tries to remove a locally mounted on directory).
1504 */
1505 error = 0;
1506 if (ip->i_flag & IN_RENAME) {
1507 error = EINVAL;
1508 goto out;
1509 }
1510 if (ip->i_effnlink != 2 ||
1511 !ufs_dirempty(ip, dp->i_number, cnp->cn_cred)) {
1512 error = ENOTEMPTY;
1513 goto out;
1514 }
1515 if ((dp->i_flags & APPEND)
1516 || (ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))) {
1517 error = EPERM;
1518 goto out;
1519 }
1520 if (vp->v_mountedhere != 0) {
1521 error = EINVAL;
1522 goto out;
1523 }
1524 /*
1525 * Delete reference to directory before purging
1526 * inode. If we crash in between, the directory
1527 * will be reattached to lost+found,
1528 */
1529 dp->i_effnlink--;
1530 ip->i_effnlink--;
1531 if (DOINGSOFTDEP(vp)) {
1532 softdep_change_linkcnt(dp);
1533 softdep_change_linkcnt(ip);
1534 }
1535 error = ufs_dirremove(dvp, ip, cnp->cn_flags, 1);
1536 if (error) {
1537 dp->i_effnlink++;
1538 ip->i_effnlink++;
1539 if (DOINGSOFTDEP(vp)) {
1540 softdep_change_linkcnt(dp);
1541 softdep_change_linkcnt(ip);
1542 }
1543 goto out;
1544 }
1545 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
984263bc
MD
1546 /*
1547 * Truncate inode. The only stuff left in the directory is "." and
1548 * "..". The "." reference is inconsequential since we are quashing
1549 * it. The soft dependency code will arrange to do these operations
1550 * after the parent directory entry has been deleted on disk, so
1551 * when running with that code we avoid doing them now.
1552 */
1553 if (!DOINGSOFTDEP(vp)) {
1554 dp->i_nlink--;
1555 dp->i_flag |= IN_CHANGE;
1556 ip->i_nlink--;
1557 ip->i_flag |= IN_CHANGE;
1558 ioflag = DOINGASYNC(vp) ? 0 : IO_SYNC;
1559 error = UFS_TRUNCATE(vp, (off_t)0, ioflag, cnp->cn_cred,
dadab5e9 1560 cnp->cn_td);
984263bc 1561 }
fad57d0e 1562 /* cache_purge removed - handled by VFS compat layer */
984263bc
MD
1563#ifdef UFS_DIRHASH
1564 /* Kill any active hash; i_effnlink == 0, so it will not come back. */
1565 if (ip->i_dirhash != NULL)
1566 ufsdirhash_free(ip);
1567#endif
1568out:
1569 VN_KNOTE(vp, NOTE_DELETE);
1570 return (error);
1571}
1572
1573/*
1574 * symlink -- make a symbolic link
0973c589
CP
1575 *
1576 * ufs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
1577 * struct componentname *a_cnp, struct vattr *a_vap,
1578 * char *a_target)
984263bc 1579 */
0961aa92 1580static
984263bc 1581int
0973c589 1582ufs_symlink(struct vop_symlink_args *ap)
984263bc 1583{
3ff2135f
RG
1584 struct vnode *vp, **vpp = ap->a_vpp;
1585 struct inode *ip;
984263bc
MD
1586 int len, error;
1587
1588 error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
1589 vpp, ap->a_cnp);
1590 if (error)
1591 return (error);
1592 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
1593 vp = *vpp;
1594 len = strlen(ap->a_target);
1595 if (len < vp->v_mount->mnt_maxsymlinklen) {
1596 ip = VTOI(vp);
1597 bcopy(ap->a_target, (char *)ip->i_shortlink, len);
1598 ip->i_size = len;
1599 ip->i_flag |= IN_CHANGE | IN_UPDATE;
1600 } else
1601 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
dadab5e9
MD
1602 UIO_SYSSPACE, IO_NODELOCKED, ap->a_cnp->cn_cred,
1603 (int *)0, NULL);
984263bc
MD
1604 if (error)
1605 vput(vp);
1606 return (error);
1607}
1608
1609/*
1610 * Vnode op for reading directories.
1611 *
1612 * The routine below assumes that the on-disk format of a directory
1613 * is the same as that defined by <sys/dirent.h>. If the on-disk
1614 * format changes, then it will be necessary to do a conversion
1615 * from the on-disk format that read returns to the format defined
1616 * by <sys/dirent.h>.
0973c589
CP
1617 *
1618 * ufs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
1619 * int *a_eofflag, int *ncookies, u_long **a_cookies)
984263bc 1620 */
0961aa92 1621static
984263bc 1622int
0973c589 1623ufs_readdir(struct vop_readdir_args *ap)
984263bc 1624{
3ff2135f 1625 struct uio *uio = ap->a_uio;
984263bc
MD
1626 int error;
1627 size_t count, lost;
1628 off_t off;
1629
1630 if (ap->a_ncookies != NULL)
1631 /*
1632 * Ensure that the block is aligned. The caller can use
1633 * the cookies to determine where in the block to start.
1634 */
1635 uio->uio_offset &= ~(DIRBLKSIZ - 1);
1636 off = uio->uio_offset;
1637 count = uio->uio_resid;
1638 /* Make sure we don't return partial entries. */
1639 if (count <= ((uio->uio_offset + count) & (DIRBLKSIZ -1)))
1640 return (EINVAL);
1641 count -= (uio->uio_offset + count) & (DIRBLKSIZ -1);
1642 lost = uio->uio_resid - count;
1643 uio->uio_resid = count;
1644 uio->uio_iov->iov_len = count;
1645# if (BYTE_ORDER == LITTLE_ENDIAN)
1646 if (ap->a_vp->v_mount->mnt_maxsymlinklen > 0) {
1647 error = VOP_READ(ap->a_vp, uio, 0, ap->a_cred);
1648 } else {
1649 struct dirent *dp, *edp;
1650 struct uio auio;
1651 struct iovec aiov;
1652 caddr_t dirbuf;
1653 int readcnt;
1654 u_char tmp;
1655
1656 auio = *uio;
1657 auio.uio_iov = &aiov;
1658 auio.uio_iovcnt = 1;
1659 auio.uio_segflg = UIO_SYSSPACE;
1660 aiov.iov_len = count;
1661 MALLOC(dirbuf, caddr_t, count, M_TEMP, M_WAITOK);
1662 aiov.iov_base = dirbuf;
1663 error = VOP_READ(ap->a_vp, &auio, 0, ap->a_cred);
1664 if (error == 0) {
1665 readcnt = count - auio.uio_resid;
1666 edp = (struct dirent *)&dirbuf[readcnt];
1667 for (dp = (struct dirent *)dirbuf; dp < edp; ) {
1668 tmp = dp->d_namlen;
1669 dp->d_namlen = dp->d_type;
1670 dp->d_type = tmp;
1671 if (dp->d_reclen > 0) {
1672 dp = (struct dirent *)
1673 ((char *)dp + dp->d_reclen);
1674 } else {
1675 error = EIO;
1676 break;
1677 }
1678 }
1679 if (dp >= edp)
1680 error = uiomove(dirbuf, readcnt, uio);
1681 }
1682 FREE(dirbuf, M_TEMP);
1683 }
1684# else
1685 error = VOP_READ(ap->a_vp, uio, 0, ap->a_cred);
1686# endif
1687 if (!error && ap->a_ncookies != NULL) {
1688 struct dirent* dpStart;
1689 struct dirent* dpEnd;
1690 struct dirent* dp;
1691 int ncookies;
1692 u_long *cookies;
1693 u_long *cookiep;
1694
1695 if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
1696 panic("ufs_readdir: unexpected uio from NFS server");
1697 dpStart = (struct dirent *)
1698 (uio->uio_iov->iov_base - (uio->uio_offset - off));
1699 dpEnd = (struct dirent *) uio->uio_iov->iov_base;
1700 for (dp = dpStart, ncookies = 0;
1701 dp < dpEnd;
1702 dp = (struct dirent *)((caddr_t) dp + dp->d_reclen))
1703 ncookies++;
1704 MALLOC(cookies, u_long *, ncookies * sizeof(u_long), M_TEMP,
1705 M_WAITOK);
1706 for (dp = dpStart, cookiep = cookies;
1707 dp < dpEnd;
1708 dp = (struct dirent *)((caddr_t) dp + dp->d_reclen)) {
1709 off += dp->d_reclen;
1710 *cookiep++ = (u_long) off;
1711 }
1712 *ap->a_ncookies = ncookies;
1713 *ap->a_cookies = cookies;
1714 }
1715 uio->uio_resid += lost;
1716 if (ap->a_eofflag)
1717 *ap->a_eofflag = VTOI(ap->a_vp)->i_size <= uio->uio_offset;
1718 return (error);
1719}
1720
1721/*
1722 * Return target name of a symbolic link
0973c589
CP
1723 *
1724 * ufs_readlink(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred)
984263bc 1725 */
0961aa92 1726static
984263bc 1727int
0973c589 1728ufs_readlink(struct vop_readlink_args *ap)
984263bc 1729{
3ff2135f
RG
1730 struct vnode *vp = ap->a_vp;
1731 struct inode *ip = VTOI(vp);
984263bc
MD
1732 int isize;
1733
1734 isize = ip->i_size;
1735 if ((isize < vp->v_mount->mnt_maxsymlinklen) ||
f719c866 1736 (ip->i_din.di_blocks == 0)) { /* XXX - for old fastlink support */
984263bc
MD
1737 uiomove((char *)ip->i_shortlink, isize, ap->a_uio);
1738 return (0);
1739 }
1740 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
1741}
1742
1743/*
1744 * Calculate the logical to physical mapping if not done already,
1745 * then call the device strategy routine.
1746 *
1747 * In order to be able to swap to a file, the VOP_BMAP operation may not
1748 * deadlock on memory. See ufs_bmap() for details.
0973c589
CP
1749 *
1750 * ufs_strategy(struct vnode *a_vp, struct buf *a_bp)
984263bc 1751 */
0961aa92 1752static
984263bc 1753int
0973c589 1754ufs_strategy(struct vop_strategy_args *ap)
984263bc 1755{
3ff2135f
RG
1756 struct buf *bp = ap->a_bp;
1757 struct vnode *vp = ap->a_vp;
1758 struct inode *ip;
984263bc
MD
1759 int error;
1760
1761 ip = VTOI(vp);
1762 if (vp->v_type == VBLK || vp->v_type == VCHR)
1763 panic("ufs_strategy: spec");
1764 if (bp->b_blkno == bp->b_lblkno) {
1765 error = VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL, NULL);
1766 if (error) {
1767 bp->b_error = error;
1768 bp->b_flags |= B_ERROR;
1769 biodone(bp);
1770 return (error);
1771 }
9ab06300 1772 if (bp->b_blkno == (daddr_t)-1)
984263bc
MD
1773 vfs_bio_clrbuf(bp);
1774 }
9ab06300 1775 if (bp->b_blkno == (daddr_t)-1) {
984263bc
MD
1776 biodone(bp);
1777 return (0);
1778 }
1779 vp = ip->i_devvp;
1780 bp->b_dev = vp->v_rdev;
1781 VOP_STRATEGY(vp, bp);
1782 return (0);
1783}
1784
1785/*
1786 * Print out the contents of an inode.
0973c589
CP
1787 *
1788 * ufs_print(struct vnode *a_vp)
984263bc 1789 */
0961aa92 1790static
984263bc 1791int
0973c589 1792ufs_print(struct vop_print_args *ap)
984263bc 1793{
3ff2135f
RG
1794 struct vnode *vp = ap->a_vp;
1795 struct inode *ip = VTOI(vp);
984263bc
MD
1796
1797 printf("tag VT_UFS, ino %lu, on dev %s (%d, %d)",
1798 (u_long)ip->i_number, devtoname(ip->i_dev), major(ip->i_dev),
1799 minor(ip->i_dev));
1800 if (vp->v_type == VFIFO)
1801 fifo_printinfo(vp);
3446c007 1802 lockmgr_printinfo(&vp->v_lock);
984263bc
MD
1803 printf("\n");
1804 return (0);
1805}
1806
1807/*
1808 * Read wrapper for special devices.
0973c589
CP
1809 *
1810 * ufsspec_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1811 * struct ucred *a_cred)
984263bc 1812 */
0961aa92 1813static
984263bc 1814int
0973c589 1815ufsspec_read(struct vop_read_args *ap)
984263bc
MD
1816{
1817 int error, resid;
1818 struct inode *ip;
1819 struct uio *uio;
1820
1821 uio = ap->a_uio;
1822 resid = uio->uio_resid;
0961aa92 1823 error = VOCALL(spec_vnode_vops, &ap->a_head);
984263bc
MD
1824 /*
1825 * The inode may have been revoked during the call, so it must not
1826 * be accessed blindly here or in the other wrapper functions.
1827 */
1828 ip = VTOI(ap->a_vp);
1829 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1830 ip->i_flag |= IN_ACCESS;
1831 return (error);
1832}
1833
1834/*
1835 * Write wrapper for special devices.
0973c589
CP
1836 *
1837 * ufsspec_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1838 * struct ucred *a_cred)
984263bc 1839 */
0961aa92 1840static
984263bc 1841int
0973c589 1842ufsspec_write(struct vop_write_args *ap)
984263bc
MD
1843{
1844 int error, resid;
1845 struct inode *ip;
1846 struct uio *uio;
1847
1848 uio = ap->a_uio;
1849 resid = uio->uio_resid;
0961aa92 1850 error = VOCALL(spec_vnode_vops, &ap->a_head);
984263bc
MD
1851 ip = VTOI(ap->a_vp);
1852 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1853 VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
1854 return (error);
1855}
1856
1857/*
1858 * Close wrapper for special devices.
1859 *
1860 * Update the times on the inode then do device close.
0973c589
CP
1861 *
1862 * ufsspec_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
1863 * struct thread *a_td)
984263bc 1864 */
0961aa92 1865static
984263bc 1866int
0973c589 1867ufsspec_close(struct vop_close_args *ap)
984263bc
MD
1868{
1869 struct vnode *vp = ap->a_vp;
1870
984263bc
MD
1871 if (vp->v_usecount > 1)
1872 ufs_itimes(vp);
0961aa92 1873 return (VOCALL(spec_vnode_vops, &ap->a_head));
984263bc
MD
1874}
1875
1876/*
1877 * Read wrapper for fifos.
0973c589
CP
1878 *
1879 * ufsfifo_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1880 * struct ucred *a_cred)
984263bc 1881 */
0961aa92 1882static
984263bc 1883int
0973c589 1884ufsfifo_read(struct vop_read_args *ap)
984263bc
MD
1885{
1886 int error, resid;
1887 struct inode *ip;
1888 struct uio *uio;
1889
1890 uio = ap->a_uio;
1891 resid = uio->uio_resid;
0961aa92 1892 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1893 ip = VTOI(ap->a_vp);
1894 if ((ap->a_vp->v_mount->mnt_flag & MNT_NOATIME) == 0 && ip != NULL &&
1895 (uio->uio_resid != resid || (error == 0 && resid != 0)))
1896 VTOI(ap->a_vp)->i_flag |= IN_ACCESS;
1897 return (error);
1898}
1899
1900/*
1901 * Write wrapper for fifos.
0973c589
CP
1902 *
1903 * ufsfifo_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1904 * struct ucred *a_cred)
984263bc 1905 */
0961aa92 1906static
984263bc 1907int
0973c589 1908ufsfifo_write(struct vop_write_args *ap)
984263bc
MD
1909{
1910 int error, resid;
1911 struct inode *ip;
1912 struct uio *uio;
1913
1914 uio = ap->a_uio;
1915 resid = uio->uio_resid;
0961aa92 1916 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1917 ip = VTOI(ap->a_vp);
1918 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1919 VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
1920 return (error);
1921}
1922
1923/*
1924 * Close wrapper for fifos.
1925 *
1926 * Update the times on the inode then do device close.
0973c589
CP
1927 *
1928 * ufsfifo_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
1929 * struct thread *a_td)
984263bc 1930 */
0961aa92 1931static
984263bc 1932int
0973c589 1933ufsfifo_close(struct vop_close_args *ap)
984263bc
MD
1934{
1935 struct vnode *vp = ap->a_vp;
1936
984263bc
MD
1937 if (vp->v_usecount > 1)
1938 ufs_itimes(vp);
0961aa92 1939 return (VOCALL(fifo_vnode_vops, &ap->a_head));
984263bc
MD
1940}
1941
1942/*
1943 * Kqfilter wrapper for fifos.
1944 *
1945 * Fall through to ufs kqfilter routines if needed
1946 */
0961aa92 1947static
984263bc 1948int
0973c589 1949ufsfifo_kqfilter(struct vop_kqfilter_args *ap)
984263bc
MD
1950{
1951 int error;
1952
0961aa92 1953 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1954 if (error)
1955 error = ufs_kqfilter(ap);
1956 return (error);
1957}
1958
1959/*
1960 * Return POSIX pathconf information applicable to ufs filesystems.
0973c589
CP
1961 *
1962 * ufs_pathconf(struct vnode *a_vp, int a_name, int *a_retval)
984263bc 1963 */
0961aa92 1964static
984263bc 1965int
0973c589 1966ufs_pathconf(struct vop_pathconf_args *ap)
984263bc 1967{
984263bc
MD
1968 switch (ap->a_name) {
1969 case _PC_LINK_MAX:
1970 *ap->a_retval = LINK_MAX;
1971 return (0);
1972 case _PC_NAME_MAX:
1973 *ap->a_retval = NAME_MAX;
1974 return (0);
1975 case _PC_PATH_MAX:
1976 *ap->a_retval = PATH_MAX;
1977 return (0);
1978 case _PC_PIPE_BUF:
1979 *ap->a_retval = PIPE_BUF;
1980 return (0);
1981 case _PC_CHOWN_RESTRICTED:
1982 *ap->a_retval = 1;
1983 return (0);
1984 case _PC_NO_TRUNC:
1985 *ap->a_retval = 1;
1986 return (0);
1987 default:
1988 return (EINVAL);
1989 }
1990 /* NOTREACHED */
1991}
1992
1993/*
1994 * Advisory record locking support
0973c589
CP
1995 *
1996 * ufs_advlock(struct vnode *a_vp, caddr_t a_id, int a_op, struct flock *a_fl,
1997 * int a_flags)
984263bc 1998 */
0961aa92 1999static
984263bc 2000int
0973c589 2001ufs_advlock(struct vop_advlock_args *ap)
984263bc 2002{
3ff2135f 2003 struct inode *ip = VTOI(ap->a_vp);
984263bc
MD
2004
2005 return (lf_advlock(ap, &(ip->i_lockf), ip->i_size));
2006}
2007
2008/*
2009 * Initialize the vnode associated with a new inode, handle aliased
2010 * vnodes.
2011 */
2012int
0961aa92 2013ufs_vinit(struct mount *mntp, struct vnode **vpp)
984263bc
MD
2014{
2015 struct inode *ip;
2016 struct vnode *vp;
2017 struct timeval tv;
2018
2019 vp = *vpp;
2020 ip = VTOI(vp);
2021 switch(vp->v_type = IFTOVT(ip->i_mode)) {
2022 case VCHR:
2023 case VBLK:
6ddb7618 2024 vp->v_ops = &mntp->mnt_vn_spec_ops;
984263bc
MD
2025 addaliasu(vp, ip->i_rdev);
2026 break;
2027 case VFIFO:
6ddb7618 2028 vp->v_ops = &mntp->mnt_vn_fifo_ops;
984263bc
MD
2029 break;
2030 default:
2031 break;
2032
2033 }
2034 if (ip->i_number == ROOTINO)
2035 vp->v_flag |= VROOT;
2036 /*
2037 * Initialize modrev times
2038 */
2039 getmicrouptime(&tv);
2040 SETHIGH(ip->i_modrev, tv.tv_sec);
2041 SETLOW(ip->i_modrev, tv.tv_usec * 4294);
2042 *vpp = vp;
2043 return (0);
2044}
2045
2046/*
2047 * Allocate a new inode.
2048 */
0961aa92 2049static
984263bc 2050int
0973c589
CP
2051ufs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp,
2052 struct componentname *cnp)
984263bc 2053{
3ff2135f 2054 struct inode *ip, *pdir;
984263bc
MD
2055 struct direct newdir;
2056 struct vnode *tvp;
2057 int error;
2058
2059 pdir = VTOI(dvp);
984263bc
MD
2060 *vpp = NULL;
2061 if ((mode & IFMT) == 0)
2062 mode |= IFREG;
2063
2064 error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
2065 if (error)
2066 return (error);
2067 ip = VTOI(tvp);
2068 ip->i_gid = pdir->i_gid;
2069#ifdef SUIDDIR
2070 {
2071#ifdef QUOTA
2072 struct ucred ucred, *ucp;
2073 ucp = cnp->cn_cred;
2074#endif
2075 /*
2076 * If we are not the owner of the directory,
2077 * and we are hacking owners here, (only do this where told to)
2078 * and we are not giving it TO root, (would subvert quotas)
2079 * then go ahead and give it to the other user.
2080 * Note that this drops off the execute bits for security.
2081 */
2082 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
2083 (pdir->i_mode & ISUID) &&
2084 (pdir->i_uid != cnp->cn_cred->cr_uid) && pdir->i_uid) {
2085 ip->i_uid = pdir->i_uid;
2086 mode &= ~07111;
2087#ifdef QUOTA
2088 /*
2089 * Make sure the correct user gets charged
2090 * for the space.
2091 * Quickly knock up a dummy credential for the victim.
2092 * XXX This seems to never be accessed out of our
2093 * context so a stack variable is ok.
2094 */
2095 ucred.cr_ref = 1;
2096 ucred.cr_uid = ip->i_uid;
2097 ucred.cr_ngroups = 1;
2098 ucred.cr_groups[0] = pdir->i_gid;
2099 ucp = &ucred;
2100#endif
2101 } else
2102 ip->i_uid = cnp->cn_cred->cr_uid;
2103
2104#ifdef QUOTA
2105 if ((error = getinoquota(ip)) ||
2106 (error = chkiq(ip, 1, ucp, 0))) {
2107 UFS_VFREE(tvp, ip->i_number, mode);
2108 vput(tvp);
2109 return (error);
2110 }
2111#endif
2112 }
2113#else /* !SUIDDIR */
2114 ip->i_uid = cnp->cn_cred->cr_uid;
2115#ifdef QUOTA
2116 if ((error = getinoquota(ip)) ||
2117 (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
2118 UFS_VFREE(tvp, ip->i_number, mode);
2119 vput(tvp);
2120 return (error);
2121 }
2122#endif
2123#endif /* !SUIDDIR */
2124 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
2125 ip->i_mode = mode;
2126 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
2127 ip->i_effnlink = 1;
2128 ip->i_nlink = 1;
2129 if (DOINGSOFTDEP(tvp))
2130 softdep_change_linkcnt(ip);
2131 if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
dadab5e9 2132 suser_cred(cnp->cn_cred, 0)) {
984263bc 2133 ip->i_mode &= ~ISGID;
41c20dac 2134 }
984263bc 2135
2b69e610 2136 if (cnp->cn_flags & CNP_ISWHITEOUT)
984263bc
MD
2137 ip->i_flags |= UF_OPAQUE;
2138
2139 /*
2140 * Make sure inode goes to disk before directory entry.
2141 */
2142 error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) | DOINGASYNC(tvp)));
2143 if (error)
2144 goto bad;
2145 ufs_makedirentry(ip, cnp, &newdir);
2146 error = ufs_direnter(dvp, tvp, &newdir, cnp, NULL);
2147 if (error)
2148 goto bad;
2149 *vpp = tvp;
2150 return (0);
2151
2152bad:
2153 /*
2154 * Write error occurred trying to update the inode
2155 * or the directory so must deallocate the inode.
2156 */
2157 ip->i_effnlink = 0;
2158 ip->i_nlink = 0;
2159 ip->i_flag |= IN_CHANGE;
2160 if (DOINGSOFTDEP(tvp))
2161 softdep_change_linkcnt(ip);
2162 vput(tvp);
2163 return (error);
2164}
2165
2166static int
0973c589 2167ufs_missingop(struct vop_generic_args *ap)
984263bc 2168{
984263bc
MD
2169 panic("no vop function for %s in ufs child", ap->a_desc->vdesc_name);
2170 return (EOPNOTSUPP);
2171}
2172
2173static struct filterops ufsread_filtops =
2174 { 1, NULL, filt_ufsdetach, filt_ufsread };
2175static struct filterops ufswrite_filtops =
2176 { 1, NULL, filt_ufsdetach, filt_ufswrite };
2177static struct filterops ufsvnode_filtops =
2178 { 1, NULL, filt_ufsdetach, filt_ufsvnode };
2179
0973c589
CP
2180/*
2181 * ufs_kqfilter(struct vnode *a_vp, struct knote *a_kn)
2182 */
984263bc 2183static int
0973c589 2184ufs_kqfilter(struct vop_kqfilter_args *ap)
984263bc
MD
2185{
2186 struct vnode *vp = ap->a_vp;
2187 struct knote *kn = ap->a_kn;
41a01a4d 2188 lwkt_tokref ilock;
984263bc
MD
2189
2190 switch (kn->kn_filter) {
2191 case EVFILT_READ:
2192 kn->kn_fop = &ufsread_filtops;
2193 break;
2194 case EVFILT_WRITE:
2195 kn->kn_fop = &ufswrite_filtops;
2196 break;
2197 case EVFILT_VNODE:
2198 kn->kn_fop = &ufsvnode_filtops;
2199 break;
2200 default:
2201 return (1);
2202 }
2203
2204 kn->kn_hook = (caddr_t)vp;
2205
41a01a4d 2206 lwkt_gettoken(&ilock, &vp->v_pollinfo.vpi_token);
984263bc 2207 SLIST_INSERT_HEAD(&vp->v_pollinfo.vpi_selinfo.si_note, kn, kn_selnext);
41a01a4d 2208 lwkt_reltoken(&ilock);
984263bc
MD
2209
2210 return (0);
2211}
2212
2213static void
2214filt_ufsdetach(struct knote *kn)
2215{
2216 struct vnode *vp = (struct vnode *)kn->kn_hook;
41a01a4d 2217 lwkt_tokref ilock;
984263bc 2218
41a01a4d 2219 lwkt_gettoken(&ilock, &vp->v_pollinfo.vpi_token);
984263bc
MD
2220 SLIST_REMOVE(&vp->v_pollinfo.vpi_selinfo.si_note,
2221 kn, knote, kn_selnext);
41a01a4d 2222 lwkt_reltoken(&ilock);
984263bc
MD
2223}
2224
2225/*ARGSUSED*/
2226static int
2227filt_ufsread(struct knote *kn, long hint)
2228{
2229 struct vnode *vp = (struct vnode *)kn->kn_hook;
2230 struct inode *ip = VTOI(vp);
2231
2232 /*
2233 * filesystem is gone, so set the EOF flag and schedule
2234 * the knote for deletion.
2235 */
2236 if (hint == NOTE_REVOKE) {
2237 kn->kn_flags |= (EV_EOF | EV_ONESHOT);
2238 return (1);
2239 }
2240
2241 kn->kn_data = ip->i_size - kn->kn_fp->f_offset;
2242 return (kn->kn_data != 0);
2243}
2244
2245/*ARGSUSED*/
2246static int
2247filt_ufswrite(struct knote *kn, long hint)
2248{
984263bc
MD
2249 /*
2250 * filesystem is gone, so set the EOF flag and schedule
2251 * the knote for deletion.
2252 */
2253 if (hint == NOTE_REVOKE)
2254 kn->kn_flags |= (EV_EOF | EV_ONESHOT);
2255
2256 kn->kn_data = 0;
2257 return (1);
2258}
2259
2260static int
2261filt_ufsvnode(struct knote *kn, long hint)
2262{
984263bc
MD
2263 if (kn->kn_sfflags & hint)
2264 kn->kn_fflags |= hint;
2265 if (hint == NOTE_REVOKE) {
2266 kn->kn_flags |= EV_EOF;
2267 return (1);
2268 }
2269 return (kn->kn_fflags != 0);
2270}
2271
2272/* Global vfs data structures for ufs. */
2d3e977e 2273static struct vop_ops *ufs_vnode_vops;
984263bc 2274static struct vnodeopv_entry_desc ufs_vnodeop_entries[] = {
2d3e977e 2275 { &vop_default_desc, vop_defaultop },
625ddaba
JS
2276 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2277 { &vop_read_desc, (vnodeopv_entry_t) ufs_missingop },
2278 { &vop_reallocblks_desc, (vnodeopv_entry_t) ufs_missingop },
2279 { &vop_write_desc, (vnodeopv_entry_t) ufs_missingop },
2280 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2281 { &vop_advlock_desc, (vnodeopv_entry_t) ufs_advlock },
2282 { &vop_bmap_desc, (vnodeopv_entry_t) ufs_bmap },
2283 { &vop_lookup_desc, (vnodeopv_entry_t) ufs_lookup },
2284 { &vop_close_desc, (vnodeopv_entry_t) ufs_close },
2285 { &vop_create_desc, (vnodeopv_entry_t) ufs_create },
2286 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2287 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2288 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
2289 { &vop_link_desc, (vnodeopv_entry_t) ufs_link },
2290 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
2291 { &vop_mkdir_desc, (vnodeopv_entry_t) ufs_mkdir },
2292 { &vop_mknod_desc, (vnodeopv_entry_t) ufs_mknod },
2293 { &vop_mmap_desc, (vnodeopv_entry_t) ufs_mmap },
2294 { &vop_open_desc, (vnodeopv_entry_t) ufs_open },
2295 { &vop_pathconf_desc, (vnodeopv_entry_t) ufs_pathconf },
2296 { &vop_poll_desc, (vnodeopv_entry_t) vop_stdpoll },
2297 { &vop_kqfilter_desc, (vnodeopv_entry_t) ufs_kqfilter },
2298 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2299 { &vop_readdir_desc, (vnodeopv_entry_t) ufs_readdir },
2300 { &vop_readlink_desc, (vnodeopv_entry_t) ufs_readlink },
2301 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
2302 { &vop_remove_desc, (vnodeopv_entry_t) ufs_remove },
2303 { &vop_rename_desc, (vnodeopv_entry_t) ufs_rename },
2304 { &vop_rmdir_desc, (vnodeopv_entry_t) ufs_rmdir },
2305 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2306 { &vop_strategy_desc, (vnodeopv_entry_t) ufs_strategy },
2307 { &vop_symlink_desc, (vnodeopv_entry_t) ufs_symlink },
2308 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
2309 { &vop_whiteout_desc, (vnodeopv_entry_t) ufs_whiteout },
984263bc
MD
2310 { NULL, NULL }
2311};
2312static struct vnodeopv_desc ufs_vnodeop_opv_desc =
2d3e977e 2313 { &ufs_vnode_vops, ufs_vnodeop_entries };
984263bc 2314
2d3e977e 2315static struct vop_ops *ufs_spec_vops;
984263bc 2316static struct vnodeopv_entry_desc ufs_specop_entries[] = {
625ddaba
JS
2317 { &vop_default_desc, (vnodeopv_entry_t) spec_vnoperate },
2318 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2319 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2320 { &vop_close_desc, (vnodeopv_entry_t) ufsspec_close },
2321 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2322 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2323 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
2324 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
2325 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2326 { &vop_read_desc, (vnodeopv_entry_t) ufsspec_read },
2327 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
2328 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2329 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
2330 { &vop_write_desc, (vnodeopv_entry_t) ufsspec_write },
984263bc
MD
2331 { NULL, NULL }
2332};
2333static struct vnodeopv_desc ufs_specop_opv_desc =
2d3e977e 2334 { &ufs_spec_vops, ufs_specop_entries };
984263bc 2335
2d3e977e 2336static struct vop_ops *ufs_fifo_vops;
984263bc 2337static struct vnodeopv_entry_desc ufs_fifoop_entries[] = {
625ddaba
JS
2338 { &vop_default_desc, (vnodeopv_entry_t) fifo_vnoperate },
2339 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2340 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2341 { &vop_close_desc, (vnodeopv_entry_t) ufsfifo_close },
2342 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2343 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2344 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
2345 { &vop_kqfilter_desc, (vnodeopv_entry_t) ufsfifo_kqfilter },
2346 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
2347 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2348 { &vop_read_desc, (vnodeopv_entry_t) ufsfifo_read },
2349 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
2350 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2351 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
2352 { &vop_write_desc, (vnodeopv_entry_t) ufsfifo_write },
984263bc
MD
2353 { NULL, NULL }
2354};
2355static struct vnodeopv_desc ufs_fifoop_opv_desc =
2d3e977e 2356 { &ufs_fifo_vops, ufs_fifoop_entries };
984263bc
MD
2357
2358VNODEOP_SET(ufs_vnodeop_opv_desc);
2359VNODEOP_SET(ufs_specop_opv_desc);
2360VNODEOP_SET(ufs_fifoop_opv_desc);
2361
0973c589
CP
2362/*
2363 * ufs_vnoperate(struct vnodeop_desc *a_desc)
2364 */
984263bc 2365int
0973c589 2366ufs_vnoperate(struct vop_generic_args *ap)
984263bc 2367{
0961aa92 2368 return (VOCALL(ufs_vnode_vops, ap));
984263bc
MD
2369}
2370
0973c589
CP
2371/*
2372 * ufs_vnoperatefifo(struct vnodeop_desc *a_desc)
2373 */
984263bc 2374int
0973c589 2375ufs_vnoperatefifo(struct vop_generic_args *ap)
984263bc 2376{
0961aa92 2377 return (VOCALL(ufs_fifo_vops, ap));
984263bc
MD
2378}
2379
0973c589
CP
2380/*
2381 * ufs_vnoperatespec(struct vnodeop_desc *a_desc)
2382 */
984263bc 2383int
0973c589 2384ufs_vnoperatespec(struct vop_generic_args *ap)
984263bc 2385{
0961aa92 2386 return (VOCALL(ufs_spec_vops, ap));
984263bc 2387}