Add an option, -y, which displays the 64 bit FSMID for a file or directory.
[dragonfly.git] / sys / vfs / ufs / ufs_vnops.c
CommitLineData
984263bc
MD
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 $
e62afb5f 40 * $DragonFly: src/sys/vfs/ufs/ufs_vnops.c,v 1.31 2005/09/14 01:13:48 dillon Exp $
984263bc
MD
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>
984263bc
MD
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>
984263bc
MD
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>
984263bc
MD
66
67#include <vm/vm.h>
68#include <vm/vm_extern.h>
69
1f2de5d4 70#include <vfs/fifofs/fifo.h>
984263bc 71
1f2de5d4
MD
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"
984263bc
MD
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 *);
e62afb5f 86static int ufs_create (struct vop_old_create_args *);
a6ee311a 87static int ufs_getattr (struct vop_getattr_args *);
e62afb5f 88static int ufs_link (struct vop_old_link_args *);
a6ee311a
RG
89static int ufs_makeinode (int mode, struct vnode *, struct vnode **, struct componentname *);
90static int ufs_missingop (struct vop_generic_args *ap);
e62afb5f
MD
91static int ufs_mkdir (struct vop_old_mkdir_args *);
92static int ufs_mknod (struct vop_old_mknod_args *);
a6ee311a
RG
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 *);
e62afb5f
MD
99static int ufs_remove (struct vop_old_remove_args *);
100static int ufs_rename (struct vop_old_rename_args *);
101static int ufs_rmdir (struct vop_old_rmdir_args *);
a6ee311a
RG
102static int ufs_setattr (struct vop_setattr_args *);
103static int ufs_strategy (struct vop_strategy_args *);
e62afb5f
MD
104static int ufs_symlink (struct vop_old_symlink_args *);
105static int ufs_whiteout (struct vop_old_whiteout_args *);
a6ee311a
RG
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);
984263bc
MD
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
e088dc32
JS
138#define OFSFMT(vp) ((vp)->v_mount->mnt_maxsymlinklen <= 0)
139
984263bc
MD
140/*
141 * A virgin directory (no blushing please).
142 */
143static struct dirtemplate mastertemplate = {
144 0, 12, DT_DIR, 1, ".",
145 0, DIRBLKSIZ - 12, DT_DIR, 2, ".."
146};
147static struct odirtemplate omastertemplate = {
148 0, 12, 1, ".",
149 0, DIRBLKSIZ - 12, 2, ".."
150};
151
152void
0973c589 153ufs_itimes(struct vnode *vp)
984263bc
MD
154{
155 struct inode *ip;
156 struct timespec ts;
157
158 ip = VTOI(vp);
159 if ((ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) == 0)
160 return;
161 if ((vp->v_type == VBLK || vp->v_type == VCHR) && !DOINGSOFTDEP(vp))
162 ip->i_flag |= IN_LAZYMOD;
163 else
164 ip->i_flag |= IN_MODIFIED;
165 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
166 vfs_timestamp(&ts);
167 if (ip->i_flag & IN_ACCESS) {
168 ip->i_atime = ts.tv_sec;
169 ip->i_atimensec = ts.tv_nsec;
170 }
171 if (ip->i_flag & IN_UPDATE) {
172 ip->i_mtime = ts.tv_sec;
173 ip->i_mtimensec = ts.tv_nsec;
174 ip->i_modrev++;
175 }
176 if (ip->i_flag & IN_CHANGE) {
177 ip->i_ctime = ts.tv_sec;
178 ip->i_ctimensec = ts.tv_nsec;
179 }
180 }
181 ip->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE);
182}
183
184/*
185 * Create a regular file
0973c589
CP
186 *
187 * ufs_create(struct vnode *a_dvp, struct vnode **a_vpp,
188 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc 189 */
0961aa92 190static
984263bc 191int
e62afb5f 192ufs_create(struct vop_old_create_args *ap)
984263bc
MD
193{
194 int error;
195
196 error =
197 ufs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode),
198 ap->a_dvp, ap->a_vpp, ap->a_cnp);
199 if (error)
200 return (error);
201 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
202 return (0);
203}
204
205/*
206 * Mknod vnode call
0973c589
CP
207 *
208 * ufs_mknod(struct vnode *a_dvp, struct vnode **a_vpp,
209 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc
MD
210 */
211/* ARGSUSED */
0961aa92 212static
984263bc 213int
e62afb5f 214ufs_mknod(struct vop_old_mknod_args *ap)
984263bc
MD
215{
216 struct vattr *vap = ap->a_vap;
217 struct vnode **vpp = ap->a_vpp;
218 struct inode *ip;
219 ino_t ino;
220 int error;
221
222 error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode),
223 ap->a_dvp, vpp, ap->a_cnp);
224 if (error)
225 return (error);
226 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
227 ip = VTOI(*vpp);
228 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
229 if (vap->va_rdev != VNOVAL) {
230 /*
231 * Want to be able to use this to make badblock
232 * inodes, so don't truncate the dev number.
233 */
234 ip->i_rdev = vap->va_rdev;
235 }
236 /*
237 * Remove inode, then reload it through VFS_VGET so it is
238 * checked to see if it is an alias of an existing entry in
239 * the inode cache.
240 */
984263bc
MD
241 (*vpp)->v_type = VNON;
242 ino = ip->i_number; /* Save this before vgone() invalidates ip. */
243 vgone(*vpp);
5fd012e0 244 vput(*vpp);
984263bc
MD
245 error = VFS_VGET(ap->a_dvp->v_mount, ino, vpp);
246 if (error) {
247 *vpp = NULL;
248 return (error);
249 }
250 return (0);
251}
252
253/*
254 * Open called.
255 *
256 * Nothing to do.
0973c589
CP
257 *
258 * ufs_open(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
259 * struct thread *a_td)
984263bc
MD
260 */
261/* ARGSUSED */
0961aa92 262static
984263bc 263int
0973c589 264ufs_open(struct vop_open_args *ap)
984263bc 265{
984263bc
MD
266 /*
267 * Files marked append-only must be opened for appending.
268 */
269 if ((VTOI(ap->a_vp)->i_flags & APPEND) &&
270 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE)
271 return (EPERM);
272 return (0);
273}
274
275/*
276 * Close called.
277 *
278 * Update the times on the inode.
0973c589
CP
279 *
280 * ufs_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
281 * struct thread *a_td)
984263bc
MD
282 */
283/* ARGSUSED */
0961aa92 284static
984263bc 285int
0973c589 286ufs_close(struct vop_close_args *ap)
984263bc 287{
3ff2135f 288 struct vnode *vp = ap->a_vp;
984263bc 289
984263bc
MD
290 if (vp->v_usecount > 1)
291 ufs_itimes(vp);
984263bc
MD
292 return (0);
293}
294
0973c589
CP
295/*
296 * ufs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
297 * struct thread *a_td)
298 */
0961aa92 299static
984263bc 300int
0973c589 301ufs_access(struct vop_access_args *ap)
984263bc
MD
302{
303 struct vnode *vp = ap->a_vp;
304 struct inode *ip = VTOI(vp);
305 struct ucred *cred = ap->a_cred;
306 mode_t mask, mode = ap->a_mode;
3ff2135f 307 gid_t *gp;
984263bc
MD
308 int i;
309#ifdef QUOTA
310 int error;
311#endif
312
313 /*
f719c866 314 * Disallow write attempts on read-only filesystems;
984263bc 315 * unless the file is a socket, fifo, or a block or
f719c866 316 * character device resident on the filesystem.
984263bc
MD
317 */
318 if (mode & VWRITE) {
319 switch (vp->v_type) {
320 case VDIR:
321 case VLNK:
322 case VREG:
323 if (vp->v_mount->mnt_flag & MNT_RDONLY)
324 return (EROFS);
325#ifdef QUOTA
326 if ((error = getinoquota(ip)) != 0)
327 return (error);
328#endif
329 break;
330 default:
331 break;
332 }
333 }
334
335 /* If immutable bit set, nobody gets to write it. */
336 if ((mode & VWRITE) && (ip->i_flags & IMMUTABLE))
337 return (EPERM);
338
339 /* Otherwise, user id 0 always gets access. */
340 if (cred->cr_uid == 0)
341 return (0);
342
343 mask = 0;
344
345 /* Otherwise, check the owner. */
346 if (cred->cr_uid == ip->i_uid) {
347 if (mode & VEXEC)
348 mask |= S_IXUSR;
349 if (mode & VREAD)
350 mask |= S_IRUSR;
351 if (mode & VWRITE)
352 mask |= S_IWUSR;
353 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
354 }
355
356 /* Otherwise, check the groups. */
357 for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++)
358 if (ip->i_gid == *gp) {
359 if (mode & VEXEC)
360 mask |= S_IXGRP;
361 if (mode & VREAD)
362 mask |= S_IRGRP;
363 if (mode & VWRITE)
364 mask |= S_IWGRP;
365 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
366 }
367
368 /* Otherwise, check everyone else. */
369 if (mode & VEXEC)
370 mask |= S_IXOTH;
371 if (mode & VREAD)
372 mask |= S_IROTH;
373 if (mode & VWRITE)
374 mask |= S_IWOTH;
375 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
376}
377
0973c589
CP
378/*
379 * ufs_getattr(struct vnode *a_vp, struct vattr *a_vap,
380 * struct thread *a_td)
381 */
984263bc 382/* ARGSUSED */
0961aa92 383static
984263bc 384int
0973c589 385ufs_getattr(struct vop_getattr_args *ap)
984263bc 386{
3ff2135f
RG
387 struct vnode *vp = ap->a_vp;
388 struct inode *ip = VTOI(vp);
389 struct vattr *vap = ap->a_vap;
984263bc
MD
390
391 ufs_itimes(vp);
392 /*
393 * Copy from inode table
394 */
395 vap->va_fsid = dev2udev(ip->i_dev);
396 vap->va_fileid = ip->i_number;
397 vap->va_mode = ip->i_mode & ~IFMT;
398 vap->va_nlink = VFSTOUFS(vp->v_mount)->um_i_effnlink_valid ?
399 ip->i_effnlink : ip->i_nlink;
400 vap->va_uid = ip->i_uid;
401 vap->va_gid = ip->i_gid;
402 vap->va_rdev = ip->i_rdev;
403 vap->va_size = ip->i_din.di_size;
404 vap->va_atime.tv_sec = ip->i_atime;
405 vap->va_atime.tv_nsec = ip->i_atimensec;
406 vap->va_mtime.tv_sec = ip->i_mtime;
407 vap->va_mtime.tv_nsec = ip->i_mtimensec;
408 vap->va_ctime.tv_sec = ip->i_ctime;
409 vap->va_ctime.tv_nsec = ip->i_ctimensec;
410 vap->va_flags = ip->i_flags;
411 vap->va_gen = ip->i_gen;
412 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
413 vap->va_bytes = dbtob((u_quad_t)ip->i_blocks);
414 vap->va_type = IFTOVT(ip->i_mode);
415 vap->va_filerev = ip->i_modrev;
416 return (0);
417}
418
419/*
420 * Set attribute vnode op. called from several syscalls
0973c589
CP
421 *
422 * ufs_setattr(struct vnode *a_vp, struct vattr *a_vap,
423 * struct ucred *a_cred, struct thread *a_td)
984263bc 424 */
0961aa92 425static
984263bc 426int
0973c589 427ufs_setattr(struct vop_setattr_args *ap)
984263bc
MD
428{
429 struct vattr *vap = ap->a_vap;
430 struct vnode *vp = ap->a_vp;
431 struct inode *ip = VTOI(vp);
432 struct ucred *cred = ap->a_cred;
984263bc
MD
433 int error;
434
435 /*
436 * Check for unsettable attributes.
437 */
438 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
439 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
440 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
441 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
442 return (EINVAL);
443 }
444 if (vap->va_flags != VNOVAL) {
445 if (vp->v_mount->mnt_flag & MNT_RDONLY)
446 return (EROFS);
447 if (cred->cr_uid != ip->i_uid &&
dadab5e9 448 (error = suser_cred(cred, PRISON_ROOT)))
984263bc 449 return (error);
21c8b4bd
MD
450 /*
451 * Note that a root chflags becomes a user chflags when
452 * we are jailed, unless the jail.chflags_allowed sysctl
453 * is set.
454 */
455 if (cred->cr_uid == 0 &&
456 (!jailed(cred) || jail_chflags_allowed)) {
984263bc
MD
457 if ((ip->i_flags
458 & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND)) &&
459 securelevel > 0)
460 return (EPERM);
461 ip->i_flags = vap->va_flags;
462 } else {
463 if (ip->i_flags
464 & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
465 (vap->va_flags & UF_SETTABLE) != vap->va_flags)
466 return (EPERM);
467 ip->i_flags &= SF_SETTABLE;
468 ip->i_flags |= (vap->va_flags & UF_SETTABLE);
469 }
470 ip->i_flag |= IN_CHANGE;
471 if (vap->va_flags & (IMMUTABLE | APPEND))
472 return (0);
473 }
474 if (ip->i_flags & (IMMUTABLE | APPEND))
475 return (EPERM);
476 /*
477 * Go through the fields and update iff not VNOVAL.
478 */
479 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
480 if (vp->v_mount->mnt_flag & MNT_RDONLY)
481 return (EROFS);
dadab5e9 482 if ((error = ufs_chown(vp, vap->va_uid, vap->va_gid, cred, ap->a_td)) != 0)
984263bc
MD
483 return (error);
484 }
485 if (vap->va_size != VNOVAL) {
486 /*
f719c866 487 * Disallow write attempts on read-only filesystems;
984263bc 488 * unless the file is a socket, fifo, or a block or
f719c866 489 * character device resident on the filesystem.
984263bc
MD
490 */
491 switch (vp->v_type) {
492 case VDIR:
493 return (EISDIR);
494 case VLNK:
495 case VREG:
496 if (vp->v_mount->mnt_flag & MNT_RDONLY)
497 return (EROFS);
498 break;
499 default:
500 break;
501 }
dadab5e9 502 if ((error = UFS_TRUNCATE(vp, vap->va_size, 0, cred, ap->a_td)) != 0)
984263bc
MD
503 return (error);
504 }
505 ip = VTOI(vp);
506 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
507 if (vp->v_mount->mnt_flag & MNT_RDONLY)
508 return (EROFS);
509 if (cred->cr_uid != ip->i_uid &&
dadab5e9 510 (error = suser_cred(cred, PRISON_ROOT)) &&
984263bc 511 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
dadab5e9 512 (error = VOP_ACCESS(vp, VWRITE, cred, ap->a_td))))
984263bc
MD
513 return (error);
514 if (vap->va_atime.tv_sec != VNOVAL)
515 ip->i_flag |= IN_ACCESS;
516 if (vap->va_mtime.tv_sec != VNOVAL)
517 ip->i_flag |= IN_CHANGE | IN_UPDATE;
518 ufs_itimes(vp);
519 if (vap->va_atime.tv_sec != VNOVAL) {
520 ip->i_atime = vap->va_atime.tv_sec;
521 ip->i_atimensec = vap->va_atime.tv_nsec;
522 }
523 if (vap->va_mtime.tv_sec != VNOVAL) {
524 ip->i_mtime = vap->va_mtime.tv_sec;
525 ip->i_mtimensec = vap->va_mtime.tv_nsec;
526 }
527 error = UFS_UPDATE(vp, 0);
528 if (error)
529 return (error);
530 }
531 error = 0;
532 if (vap->va_mode != (mode_t)VNOVAL) {
533 if (vp->v_mount->mnt_flag & MNT_RDONLY)
534 return (EROFS);
dadab5e9 535 error = ufs_chmod(vp, (int)vap->va_mode, cred, ap->a_td);
984263bc
MD
536 }
537 VN_KNOTE(vp, NOTE_ATTRIB);
538 return (error);
539}
540
541/*
542 * Change the mode on a file.
543 * Inode must be locked before calling.
544 */
545static int
dadab5e9 546ufs_chmod(struct vnode *vp, int mode, struct ucred *cred, struct thread *td)
984263bc 547{
3ff2135f 548 struct inode *ip = VTOI(vp);
984263bc
MD
549 int error;
550
551 if (cred->cr_uid != ip->i_uid) {
dadab5e9 552 error = suser_cred(cred, PRISON_ROOT);
984263bc
MD
553 if (error)
554 return (error);
555 }
556 if (cred->cr_uid) {
557 if (vp->v_type != VDIR && (mode & S_ISTXT))
558 return (EFTYPE);
559 if (!groupmember(ip->i_gid, cred) && (mode & ISGID))
560 return (EPERM);
561 }
562 ip->i_mode &= ~ALLPERMS;
563 ip->i_mode |= (mode & ALLPERMS);
564 ip->i_flag |= IN_CHANGE;
565 return (0);
566}
567
568/*
569 * Perform chown operation on inode ip;
570 * inode must be locked prior to call.
571 */
572static int
0973c589
CP
573ufs_chown(struct vnode *vp, uid_t uid, gid_t gid, struct ucred *cred,
574 struct thread *td)
984263bc 575{
3ff2135f 576 struct inode *ip = VTOI(vp);
984263bc
MD
577 uid_t ouid;
578 gid_t ogid;
579 int error = 0;
580#ifdef QUOTA
3ff2135f 581 int i;
984263bc
MD
582 long change;
583#endif
584
585 if (uid == (uid_t)VNOVAL)
586 uid = ip->i_uid;
587 if (gid == (gid_t)VNOVAL)
588 gid = ip->i_gid;
589 /*
590 * If we don't own the file, are trying to change the owner
591 * of the file, or are not a member of the target group,
592 * the caller must be superuser or the call fails.
593 */
594 if ((cred->cr_uid != ip->i_uid || uid != ip->i_uid ||
a10e3626
DR
595 (gid != ip->i_gid && !(cred->cr_gid == gid ||
596 groupmember((gid_t)gid, cred)))) &&
dadab5e9 597 (error = suser_cred(cred, PRISON_ROOT)))
984263bc
MD
598 return (error);
599 ogid = ip->i_gid;
600 ouid = ip->i_uid;
601#ifdef QUOTA
602 if ((error = getinoquota(ip)) != 0)
603 return (error);
604 if (ouid == uid) {
605 dqrele(vp, ip->i_dquot[USRQUOTA]);
606 ip->i_dquot[USRQUOTA] = NODQUOT;
607 }
608 if (ogid == gid) {
609 dqrele(vp, ip->i_dquot[GRPQUOTA]);
610 ip->i_dquot[GRPQUOTA] = NODQUOT;
611 }
612 change = ip->i_blocks;
613 (void) chkdq(ip, -change, cred, CHOWN);
614 (void) chkiq(ip, -1, cred, CHOWN);
615 for (i = 0; i < MAXQUOTAS; i++) {
616 dqrele(vp, ip->i_dquot[i]);
617 ip->i_dquot[i] = NODQUOT;
618 }
619#endif
620 ip->i_gid = gid;
621 ip->i_uid = uid;
622#ifdef QUOTA
623 if ((error = getinoquota(ip)) == 0) {
624 if (ouid == uid) {
625 dqrele(vp, ip->i_dquot[USRQUOTA]);
626 ip->i_dquot[USRQUOTA] = NODQUOT;
627 }
628 if (ogid == gid) {
629 dqrele(vp, ip->i_dquot[GRPQUOTA]);
630 ip->i_dquot[GRPQUOTA] = NODQUOT;
631 }
632 if ((error = chkdq(ip, change, cred, CHOWN)) == 0) {
633 if ((error = chkiq(ip, 1, cred, CHOWN)) == 0)
634 goto good;
635 else
636 (void) chkdq(ip, -change, cred, CHOWN|FORCE);
637 }
638 for (i = 0; i < MAXQUOTAS; i++) {
639 dqrele(vp, ip->i_dquot[i]);
640 ip->i_dquot[i] = NODQUOT;
641 }
642 }
643 ip->i_gid = ogid;
644 ip->i_uid = ouid;
645 if (getinoquota(ip) == 0) {
646 if (ouid == uid) {
647 dqrele(vp, ip->i_dquot[USRQUOTA]);
648 ip->i_dquot[USRQUOTA] = NODQUOT;
649 }
650 if (ogid == gid) {
651 dqrele(vp, ip->i_dquot[GRPQUOTA]);
652 ip->i_dquot[GRPQUOTA] = NODQUOT;
653 }
654 (void) chkdq(ip, change, cred, FORCE|CHOWN);
655 (void) chkiq(ip, 1, cred, FORCE|CHOWN);
656 (void) getinoquota(ip);
657 }
658 return (error);
659good:
660 if (getinoquota(ip))
661 panic("ufs_chown: lost quota");
662#endif /* QUOTA */
663 ip->i_flag |= IN_CHANGE;
664 if (cred->cr_uid != 0 && (ouid != uid || ogid != gid))
665 ip->i_mode &= ~(ISUID | ISGID);
666 return (0);
667}
668
669/*
670 * Mmap a file
671 *
672 * NB Currently unsupported.
0973c589
CP
673 *
674 * ufs_mmap(struct vnode *a_vp, int a_fflags, struct ucred *a_cred,
675 * struct thread *a_td)
984263bc
MD
676 */
677/* ARGSUSED */
0961aa92 678static
984263bc 679int
0973c589 680ufs_mmap(struct vop_mmap_args *ap)
984263bc 681{
984263bc
MD
682 return (EINVAL);
683}
684
0973c589
CP
685/*
686 * ufs_remove(struct vnode *a_dvp, struct vnode *a_vp,
687 * struct componentname *a_cnp)
688 */
0961aa92 689static
984263bc 690int
e62afb5f 691ufs_remove(struct vop_old_remove_args *ap)
984263bc
MD
692{
693 struct inode *ip;
694 struct vnode *vp = ap->a_vp;
695 struct vnode *dvp = ap->a_dvp;
696 int error;
697
698 ip = VTOI(vp);
699 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
700 (VTOI(dvp)->i_flags & APPEND)) {
701 error = EPERM;
702 goto out;
703 }
704 error = ufs_dirremove(dvp, ip, ap->a_cnp->cn_flags, 0);
705 VN_KNOTE(vp, NOTE_DELETE);
706 VN_KNOTE(dvp, NOTE_WRITE);
707out:
708 return (error);
709}
710
711/*
712 * link vnode call
0973c589
CP
713 *
714 * ufs_link(struct vnode *a_tdvp, struct vnode *a_vp,
715 * struct componentname *a_cnp)
984263bc 716 */
0961aa92 717static
984263bc 718int
e62afb5f 719ufs_link(struct vop_old_link_args *ap)
984263bc
MD
720{
721 struct vnode *vp = ap->a_vp;
722 struct vnode *tdvp = ap->a_tdvp;
723 struct componentname *cnp = ap->a_cnp;
dadab5e9 724 struct thread *td = cnp->cn_td;
984263bc
MD
725 struct inode *ip;
726 struct direct newdir;
727 int error;
728
984263bc
MD
729 if (tdvp->v_mount != vp->v_mount) {
730 error = EXDEV;
731 goto out2;
732 }
5fd012e0 733 if (tdvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE, td))) {
984263bc
MD
734 goto out2;
735 }
736 ip = VTOI(vp);
737 if ((nlink_t)ip->i_nlink >= LINK_MAX) {
738 error = EMLINK;
739 goto out1;
740 }
741 if (ip->i_flags & (IMMUTABLE | APPEND)) {
742 error = EPERM;
743 goto out1;
744 }
745 ip->i_effnlink++;
746 ip->i_nlink++;
747 ip->i_flag |= IN_CHANGE;
748 if (DOINGSOFTDEP(vp))
749 softdep_change_linkcnt(ip);
750 error = UFS_UPDATE(vp, !(DOINGSOFTDEP(vp) | DOINGASYNC(vp)));
751 if (!error) {
752 ufs_makedirentry(ip, cnp, &newdir);
753 error = ufs_direnter(tdvp, vp, &newdir, cnp, NULL);
754 }
755
756 if (error) {
757 ip->i_effnlink--;
758 ip->i_nlink--;
759 ip->i_flag |= IN_CHANGE;
760 if (DOINGSOFTDEP(vp))
761 softdep_change_linkcnt(ip);
762 }
763out1:
764 if (tdvp != vp)
5fd012e0 765 VOP_UNLOCK(vp, 0, td);
984263bc
MD
766out2:
767 VN_KNOTE(vp, NOTE_LINK);
768 VN_KNOTE(tdvp, NOTE_WRITE);
769 return (error);
770}
771
772/*
773 * whiteout vnode call
0973c589
CP
774 *
775 * ufs_whiteout(struct vnode *a_dvp, struct componentname *a_cnp, int a_flags)
984263bc 776 */
0961aa92 777static
984263bc 778int
e62afb5f 779ufs_whiteout(struct vop_old_whiteout_args *ap)
984263bc
MD
780{
781 struct vnode *dvp = ap->a_dvp;
782 struct componentname *cnp = ap->a_cnp;
783 struct direct newdir;
784 int error = 0;
785
786 switch (ap->a_flags) {
2b69e610 787 case NAMEI_LOOKUP:
984263bc
MD
788 /* 4.4 format directories support whiteout operations */
789 if (dvp->v_mount->mnt_maxsymlinklen > 0)
790 return (0);
791 return (EOPNOTSUPP);
792
2b69e610 793 case NAMEI_CREATE:
984263bc
MD
794 /* create a new directory whiteout */
795#ifdef DIAGNOSTIC
984263bc
MD
796 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
797 panic("ufs_whiteout: old format filesystem");
798#endif
799
800 newdir.d_ino = WINO;
801 newdir.d_namlen = cnp->cn_namelen;
802 bcopy(cnp->cn_nameptr, newdir.d_name, (unsigned)cnp->cn_namelen + 1);
803 newdir.d_type = DT_WHT;
804 error = ufs_direnter(dvp, NULL, &newdir, cnp, NULL);
805 break;
806
2b69e610 807 case NAMEI_DELETE:
984263bc
MD
808 /* remove an existing directory whiteout */
809#ifdef DIAGNOSTIC
810 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
811 panic("ufs_whiteout: old format filesystem");
812#endif
813
2b69e610 814 cnp->cn_flags &= ~CNP_DOWHITEOUT;
984263bc
MD
815 error = ufs_dirremove(dvp, NULL, cnp->cn_flags, 0);
816 break;
817 default:
818 panic("ufs_whiteout: unknown op");
819 }
820 return (error);
821}
822
823/*
824 * Rename system call.
825 * rename("foo", "bar");
826 * is essentially
827 * unlink("bar");
828 * link("foo", "bar");
829 * unlink("foo");
830 * but ``atomically''. Can't do full commit without saving state in the
831 * inode on disk which isn't feasible at this time. Best we can do is
832 * always guarantee the target exists.
833 *
834 * Basic algorithm is:
835 *
836 * 1) Bump link count on source while we're linking it to the
837 * target. This also ensure the inode won't be deleted out
838 * from underneath us while we work (it may be truncated by
839 * a concurrent `trunc' or `open' for creation).
840 * 2) Link source to destination. If destination already exists,
841 * delete it first.
842 * 3) Unlink source reference to inode if still around. If a
843 * directory was moved and the parent of the destination
844 * is different from the source, patch the ".." entry in the
845 * directory.
0973c589
CP
846 *
847 * ufs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
848 * struct componentname *a_fcnp, struct vnode *a_tdvp,
849 * struct vnode *a_tvp, struct componentname *a_tcnp)
984263bc 850 */
0961aa92 851static
984263bc 852int
e62afb5f 853ufs_rename(struct vop_old_rename_args *ap)
984263bc
MD
854{
855 struct vnode *tvp = ap->a_tvp;
3ff2135f 856 struct vnode *tdvp = ap->a_tdvp;
984263bc
MD
857 struct vnode *fvp = ap->a_fvp;
858 struct vnode *fdvp = ap->a_fdvp;
859 struct componentname *tcnp = ap->a_tcnp;
860 struct componentname *fcnp = ap->a_fcnp;
dadab5e9 861 struct thread *td = fcnp->cn_td;
984263bc
MD
862 struct inode *ip, *xp, *dp;
863 struct direct newdir;
9ab06300
MD
864 ino_t oldparent = 0, newparent = 0;
865 int doingdirectory = 0;
984263bc
MD
866 int error = 0, ioflag;
867
984263bc
MD
868 /*
869 * Check for cross-device rename.
870 */
871 if ((fvp->v_mount != tdvp->v_mount) ||
872 (tvp && (fvp->v_mount != tvp->v_mount))) {
873 error = EXDEV;
874abortit:
875 if (tdvp == tvp)
876 vrele(tdvp);
877 else
878 vput(tdvp);
879 if (tvp)
880 vput(tvp);
881 vrele(fdvp);
882 vrele(fvp);
883 return (error);
884 }
885
886 if (tvp && ((VTOI(tvp)->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
887 (VTOI(tdvp)->i_flags & APPEND))) {
888 error = EPERM;
889 goto abortit;
890 }
891
892 /*
893 * Renaming a file to itself has no effect. The upper layers should
894 * not call us in that case. Temporarily just warn if they do.
895 */
896 if (fvp == tvp) {
897 printf("ufs_rename: fvp == tvp (can't happen)\n");
898 error = 0;
899 goto abortit;
900 }
901
5fd012e0 902 if ((error = vn_lock(fvp, LK_EXCLUSIVE, td)) != 0)
984263bc 903 goto abortit;
fad57d0e
MD
904
905 /*
906 * Note: now that fvp is locked we have to be sure to unlock it before
907 * using the 'abortit' target.
908 */
984263bc
MD
909 dp = VTOI(fdvp);
910 ip = VTOI(fvp);
911 if (ip->i_nlink >= LINK_MAX) {
5fd012e0 912 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
913 error = EMLINK;
914 goto abortit;
915 }
916 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))
917 || (dp->i_flags & APPEND)) {
5fd012e0 918 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
919 error = EPERM;
920 goto abortit;
921 }
922 if ((ip->i_mode & IFMT) == IFDIR) {
923 /*
924 * Avoid ".", "..", and aliases of "." for obvious reasons.
925 */
926 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
2b69e610 927 dp == ip || (fcnp->cn_flags | tcnp->cn_flags) & CNP_ISDOTDOT ||
984263bc 928 (ip->i_flag & IN_RENAME)) {
5fd012e0 929 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
930 error = EINVAL;
931 goto abortit;
932 }
933 ip->i_flag |= IN_RENAME;
934 oldparent = dp->i_number;
935 doingdirectory = 1;
936 }
937 VN_KNOTE(fdvp, NOTE_WRITE); /* XXX right place? */
984263bc
MD
938
939 /*
fad57d0e
MD
940 * fvp still locked. ip->i_flag has IN_RENAME set if doingdirectory.
941 * Cleanup fvp requirements so we can unlock it.
942 *
943 * tvp and tdvp are locked. tvp may be NULL. Now that dp and xp
944 * is setup we can use the 'bad' target if we unlock fvp. We cannot
945 * use the abortit target anymore because of IN_RENAME.
984263bc
MD
946 */
947 dp = VTOI(tdvp);
984263bc
MD
948 if (tvp)
949 xp = VTOI(tvp);
fad57d0e
MD
950 else
951 xp = NULL;
984263bc
MD
952
953 /*
954 * 1) Bump link count while we're moving stuff
955 * around. If we crash somewhere before
956 * completing our work, the link count
957 * may be wrong, but correctable.
958 */
959 ip->i_effnlink++;
960 ip->i_nlink++;
961 ip->i_flag |= IN_CHANGE;
962 if (DOINGSOFTDEP(fvp))
963 softdep_change_linkcnt(ip);
964 if ((error = UFS_UPDATE(fvp, !(DOINGSOFTDEP(fvp) |
965 DOINGASYNC(fvp)))) != 0) {
5fd012e0 966 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
967 goto bad;
968 }
969
970 /*
971 * If ".." must be changed (ie the directory gets a new
972 * parent) then the source directory must not be in the
973 * directory heirarchy above the target, as this would
974 * orphan everything below the source directory. Also
975 * the user must have write permission in the source so
976 * as to be able to change "..". We must repeat the call
977 * to namei, as the parent directory is unlocked by the
978 * call to checkpath().
979 */
dadab5e9 980 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_td);
5fd012e0 981 VOP_UNLOCK(fvp, 0, td);
fad57d0e
MD
982
983 /*
984 * We are now back to where we were in that fvp, fdvp are unlocked
985 * and tvp, tdvp are locked. tvp may be NULL. IN_RENAME may be
986 * set. Only the bad target or, if we clean up tvp and tdvp, the
987 * out target, may be used.
988 */
984263bc
MD
989 if (oldparent != dp->i_number)
990 newparent = dp->i_number;
991 if (doingdirectory && newparent) {
992 if (error) /* write access check above */
993 goto bad;
fad57d0e
MD
994
995 /*
996 * Once we start messing with tvp and tdvp we cannot use the
997 * 'bad' target, only finish cleaning tdvp and tvp up and
998 * use the 'out' target.
999 *
1000 * This cleans up tvp.
1001 */
1002 if (xp != NULL) {
984263bc 1003 vput(tvp);
fad57d0e
MD
1004 xp = NULL;
1005 }
1006
1007 /*
1008 * This is a real mess. ufs_checkpath vput's the target
1009 * directory so retain an extra ref and note that tdvp will
1010 * lose its lock on return. This leaves us with one good
1011 * ref after ufs_checkpath returns.
1012 */
1013 vref(tdvp);
984263bc 1014 error = ufs_checkpath(ip, dp, tcnp->cn_cred);
fad57d0e
MD
1015 tcnp->cn_flags |= CNP_PDIRUNLOCK;
1016 if (error) {
1017 vrele(tdvp);
984263bc 1018 goto out;
fad57d0e
MD
1019 }
1020
1021 /*
1022 * relookup no longer messes with tdvp's refs. tdvp must be
1023 * unlocked on entry and will be locked on a successful
1024 * return.
1025 */
984263bc 1026 error = relookup(tdvp, &tvp, tcnp);
fad57d0e
MD
1027 if (error) {
1028 if (tcnp->cn_flags & CNP_PDIRUNLOCK)
1029 vrele(tdvp);
1030 else
1031 vput(tdvp);
984263bc 1032 goto out;
fad57d0e
MD
1033 }
1034 KKASSERT((tcnp->cn_flags & CNP_PDIRUNLOCK) == 0);
984263bc 1035 dp = VTOI(tdvp);
984263bc
MD
1036 if (tvp)
1037 xp = VTOI(tvp);
1038 }
fad57d0e
MD
1039
1040 /*
1041 * We are back to fvp, fdvp unlocked, tvp, tdvp locked. tvp may
1042 * be NULL (xp will also be NULL in that case), and IN_RENAME will
1043 * be set if doingdirectory. This means we can use the 'bad' target
1044 * again.
1045 */
1046
984263bc
MD
1047 /*
1048 * 2) If target doesn't exist, link the target
1049 * to the source and unlink the source.
1050 * Otherwise, rewrite the target directory
1051 * entry to reference the source inode and
1052 * expunge the original entry's existence.
1053 */
1054 if (xp == NULL) {
1055 if (dp->i_dev != ip->i_dev)
1056 panic("ufs_rename: EXDEV");
1057 /*
1058 * Account for ".." in new directory.
1059 * When source and destination have the same
1060 * parent we don't fool with the link count.
1061 */
1062 if (doingdirectory && newparent) {
1063 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1064 error = EMLINK;
1065 goto bad;
1066 }
1067 dp->i_effnlink++;
1068 dp->i_nlink++;
1069 dp->i_flag |= IN_CHANGE;
1070 if (DOINGSOFTDEP(tdvp))
1071 softdep_change_linkcnt(dp);
1072 error = UFS_UPDATE(tdvp, !(DOINGSOFTDEP(tdvp) |
1073 DOINGASYNC(tdvp)));
1074 if (error)
1075 goto bad;
1076 }
1077 ufs_makedirentry(ip, tcnp, &newdir);
1078 error = ufs_direnter(tdvp, NULL, &newdir, tcnp, NULL);
1079 if (error) {
1080 if (doingdirectory && newparent) {
1081 dp->i_effnlink--;
1082 dp->i_nlink--;
1083 dp->i_flag |= IN_CHANGE;
1084 if (DOINGSOFTDEP(tdvp))
1085 softdep_change_linkcnt(dp);
1086 (void)UFS_UPDATE(tdvp, 1);
1087 }
1088 goto bad;
1089 }
1090 VN_KNOTE(tdvp, NOTE_WRITE);
1091 vput(tdvp);
1092 } else {
1093 if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
1094 panic("ufs_rename: EXDEV");
1095 /*
1096 * Short circuit rename(foo, foo).
1097 */
1098 if (xp->i_number == ip->i_number)
1099 panic("ufs_rename: same file");
1100 /*
1101 * If the parent directory is "sticky", then the user must
1102 * own the parent directory, or the destination of the rename,
1103 * otherwise the destination may not be changed (except by
1104 * root). This implements append-only directories.
1105 */
1106 if ((dp->i_mode & S_ISTXT) && tcnp->cn_cred->cr_uid != 0 &&
1107 tcnp->cn_cred->cr_uid != dp->i_uid &&
1108 xp->i_uid != tcnp->cn_cred->cr_uid) {
1109 error = EPERM;
1110 goto bad;
1111 }
1112 /*
1113 * Target must be empty if a directory and have no links
1114 * to it. Also, ensure source and target are compatible
1115 * (both directories, or both not directories).
8e005a45
MD
1116 *
1117 * Purge the file or directory being replaced from the
1118 * nameccache.
984263bc
MD
1119 */
1120 if ((xp->i_mode&IFMT) == IFDIR) {
1121 if ((xp->i_effnlink > 2) ||
1122 !ufs_dirempty(xp, dp->i_number, tcnp->cn_cred)) {
1123 error = ENOTEMPTY;
1124 goto bad;
1125 }
1126 if (!doingdirectory) {
1127 error = ENOTDIR;
1128 goto bad;
1129 }
fad57d0e 1130 /* cache_purge removed - handled by VFS compat layer */
8e005a45 1131 } else if (doingdirectory == 0) {
fad57d0e 1132 /* cache_purge removed - handled by VFS compat layer */
8e005a45 1133 } else {
984263bc
MD
1134 error = EISDIR;
1135 goto bad;
1136 }
9ab06300
MD
1137 /*
1138 * note: inode passed to ufs_dirrewrite() is 0 for a
1139 * non-directory file rename, 1 for a directory rename
1140 * in the same directory, and > 1 for an inode representing
1141 * the new directory.
1142 */
984263bc
MD
1143 error = ufs_dirrewrite(dp, xp, ip->i_number,
1144 IFTODT(ip->i_mode),
9ab06300
MD
1145 (doingdirectory && newparent) ?
1146 newparent : (ino_t)doingdirectory);
984263bc
MD
1147 if (error)
1148 goto bad;
1149 if (doingdirectory) {
1150 if (!newparent) {
1151 dp->i_effnlink--;
1152 if (DOINGSOFTDEP(tdvp))
1153 softdep_change_linkcnt(dp);
1154 }
1155 xp->i_effnlink--;
1156 if (DOINGSOFTDEP(tvp))
1157 softdep_change_linkcnt(xp);
1158 }
1159 if (doingdirectory && !DOINGSOFTDEP(tvp)) {
1160 /*
1161 * Truncate inode. The only stuff left in the directory
1162 * is "." and "..". The "." reference is inconsequential
1163 * since we are quashing it. We have removed the "."
1164 * reference and the reference in the parent directory,
1165 * but there may be other hard links. The soft
1166 * dependency code will arrange to do these operations
1167 * after the parent directory entry has been deleted on
1168 * disk, so when running with that code we avoid doing
1169 * them now.
1170 */
1171 if (!newparent) {
1172 dp->i_nlink--;
1173 dp->i_flag |= IN_CHANGE;
1174 }
1175 xp->i_nlink--;
1176 xp->i_flag |= IN_CHANGE;
1177 ioflag = DOINGASYNC(tvp) ? 0 : IO_SYNC;
1178 if ((error = UFS_TRUNCATE(tvp, (off_t)0, ioflag,
dadab5e9 1179 tcnp->cn_cred, tcnp->cn_td)) != 0)
984263bc
MD
1180 goto bad;
1181 }
1182 VN_KNOTE(tdvp, NOTE_WRITE);
1183 vput(tdvp);
1184 VN_KNOTE(tvp, NOTE_DELETE);
1185 vput(tvp);
1186 xp = NULL;
1187 }
1188
fad57d0e
MD
1189 /*
1190 * tvp and tdvp have been cleaned up. only fvp and fdvp (both
1191 * unlocked) remain. We are about to overwrite fvp but we have to
1192 * keep 'ip' intact so we cannot release the old fvp, which is still
1193 * refd and accessible via ap->a_fvp.
1194 *
1195 * This means we cannot use either 'bad' or 'out' to cleanup any
1196 * more.
1197 */
1198
984263bc
MD
1199 /*
1200 * 3) Unlink the source.
1201 */
2b69e610 1202 fcnp->cn_flags &= ~CNP_MODMASK;
fad57d0e 1203 fcnp->cn_flags |= CNP_LOCKPARENT;
984263bc 1204 error = relookup(fdvp, &fvp, fcnp);
fad57d0e 1205 if (error || fvp == NULL) {
984263bc 1206 /*
fad57d0e
MD
1207 * From name has disappeared. IN_RENAME will not be set if
1208 * we get past the panic so we don't have to clean it up.
984263bc
MD
1209 */
1210 if (doingdirectory)
1211 panic("ufs_rename: lost dir entry");
1212 vrele(ap->a_fvp);
fad57d0e
MD
1213 if (fcnp->cn_flags & CNP_PDIRUNLOCK)
1214 vrele(fdvp);
1215 else
1216 vput(fdvp);
1217 return(0);
984263bc 1218 }
fad57d0e
MD
1219 KKASSERT((fcnp->cn_flags & CNP_PDIRUNLOCK) == 0);
1220
1221 /*
1222 * fdvp and fvp are locked.
1223 */
1224 xp = VTOI(fvp);
1225 dp = VTOI(fdvp);
1226
984263bc
MD
1227 /*
1228 * Ensure that the directory entry still exists and has not
1229 * changed while the new name has been entered. If the source is
1230 * a file then the entry may have been unlinked or renamed. In
1231 * either case there is no further work to be done. If the source
1232 * is a directory then it cannot have been rmdir'ed; the IN_RENAME
1233 * flag ensures that it cannot be moved by another rename or removed
fad57d0e 1234 * by a rmdir. Cleanup IN_RENAME.
984263bc
MD
1235 */
1236 if (xp != ip) {
1237 if (doingdirectory)
1238 panic("ufs_rename: lost dir entry");
1239 } else {
1240 /*
1241 * If the source is a directory with a
1242 * new parent, the link count of the old
1243 * parent directory must be decremented
1244 * and ".." set to point to the new parent.
1245 */
1246 if (doingdirectory && newparent) {
1247 xp->i_offset = mastertemplate.dot_reclen;
1248 ufs_dirrewrite(xp, dp, newparent, DT_DIR, 0);
fad57d0e 1249 /* cache_purge removed - handled by VFS compat layer */
984263bc
MD
1250 }
1251 error = ufs_dirremove(fdvp, xp, fcnp->cn_flags, 0);
1252 xp->i_flag &= ~IN_RENAME;
1253 }
8e005a45 1254
984263bc 1255 VN_KNOTE(fvp, NOTE_RENAME);
fad57d0e
MD
1256 vput(fdvp);
1257 vput(fvp);
984263bc
MD
1258 vrele(ap->a_fvp);
1259 return (error);
1260
1261bad:
1262 if (xp)
1263 vput(ITOV(xp));
1264 vput(ITOV(dp));
1265out:
1266 if (doingdirectory)
1267 ip->i_flag &= ~IN_RENAME;
5fd012e0 1268 if (vn_lock(fvp, LK_EXCLUSIVE, td) == 0) {
984263bc
MD
1269 ip->i_effnlink--;
1270 ip->i_nlink--;
1271 ip->i_flag |= IN_CHANGE;
1272 ip->i_flag &= ~IN_RENAME;
1273 if (DOINGSOFTDEP(fvp))
1274 softdep_change_linkcnt(ip);
1275 vput(fvp);
fad57d0e 1276 } else {
984263bc 1277 vrele(fvp);
fad57d0e 1278 }
984263bc
MD
1279 return (error);
1280}
1281
1282/*
1283 * Mkdir system call
0973c589
CP
1284 *
1285 * ufs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
1286 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc 1287 */
0961aa92 1288static
984263bc 1289int
e62afb5f 1290ufs_mkdir(struct vop_old_mkdir_args *ap)
984263bc 1291{
3ff2135f
RG
1292 struct vnode *dvp = ap->a_dvp;
1293 struct vattr *vap = ap->a_vap;
1294 struct componentname *cnp = ap->a_cnp;
1295 struct inode *ip, *dp;
984263bc
MD
1296 struct vnode *tvp;
1297 struct buf *bp;
1298 struct dirtemplate dirtemplate, *dtp;
1299 struct direct newdir;
1300 int error, dmode;
1301 long blkoff;
1302
984263bc
MD
1303 dp = VTOI(dvp);
1304 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1305 error = EMLINK;
1306 goto out;
1307 }
1308 dmode = vap->va_mode & 0777;
1309 dmode |= IFDIR;
1310 /*
1311 * Must simulate part of ufs_makeinode here to acquire the inode,
1312 * but not have it entered in the parent directory. The entry is
1313 * made later after writing "." and ".." entries.
1314 */
1315 error = UFS_VALLOC(dvp, dmode, cnp->cn_cred, &tvp);
1316 if (error)
1317 goto out;
1318 ip = VTOI(tvp);
1319 ip->i_gid = dp->i_gid;
1320#ifdef SUIDDIR
1321 {
1322#ifdef QUOTA
1323 struct ucred ucred, *ucp;
1324 ucp = cnp->cn_cred;
1325#endif
1326 /*
1327 * If we are hacking owners here, (only do this where told to)
1328 * and we are not giving it TO root, (would subvert quotas)
1329 * then go ahead and give it to the other user.
1330 * The new directory also inherits the SUID bit.
1331 * If user's UID and dir UID are the same,
1332 * 'give it away' so that the SUID is still forced on.
1333 */
1334 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
1335 (dp->i_mode & ISUID) && dp->i_uid) {
1336 dmode |= ISUID;
1337 ip->i_uid = dp->i_uid;
1338#ifdef QUOTA
1339 if (dp->i_uid != cnp->cn_cred->cr_uid) {
1340 /*
1341 * Make sure the correct user gets charged
1342 * for the space.
1343 * Make a dummy credential for the victim.
1344 * XXX This seems to never be accessed out of
1345 * our context so a stack variable is ok.
1346 */
1347 ucred.cr_ref = 1;
1348 ucred.cr_uid = ip->i_uid;
1349 ucred.cr_ngroups = 1;
1350 ucred.cr_groups[0] = dp->i_gid;
1351 ucp = &ucred;
1352 }
1353#endif
1354 } else
1355 ip->i_uid = cnp->cn_cred->cr_uid;
1356#ifdef QUOTA
1357 if ((error = getinoquota(ip)) ||
1358 (error = chkiq(ip, 1, ucp, 0))) {
1359 UFS_VFREE(tvp, ip->i_number, dmode);
1360 vput(tvp);
1361 return (error);
1362 }
1363#endif
1364 }
1365#else /* !SUIDDIR */
1366 ip->i_uid = cnp->cn_cred->cr_uid;
1367#ifdef QUOTA
1368 if ((error = getinoquota(ip)) ||
1369 (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
1370 UFS_VFREE(tvp, ip->i_number, dmode);
1371 vput(tvp);
1372 return (error);
1373 }
1374#endif
1375#endif /* !SUIDDIR */
1376 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
1377 ip->i_mode = dmode;
1378 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */
1379 ip->i_effnlink = 2;
1380 ip->i_nlink = 2;
1381 if (DOINGSOFTDEP(tvp))
1382 softdep_change_linkcnt(ip);
2b69e610 1383 if (cnp->cn_flags & CNP_ISWHITEOUT)
984263bc
MD
1384 ip->i_flags |= UF_OPAQUE;
1385
1386 /*
1387 * Bump link count in parent directory to reflect work done below.
1388 * Should be done before reference is created so cleanup is
1389 * possible if we crash.
1390 */
1391 dp->i_effnlink++;
1392 dp->i_nlink++;
1393 dp->i_flag |= IN_CHANGE;
1394 if (DOINGSOFTDEP(dvp))
1395 softdep_change_linkcnt(dp);
1396 error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(dvp) | DOINGASYNC(dvp)));
1397 if (error)
1398 goto bad;
1399
1400 /*
1401 * Initialize directory with "." and ".." from static template.
1402 */
1403 if (dvp->v_mount->mnt_maxsymlinklen > 0
1404 )
1405 dtp = &mastertemplate;
1406 else
1407 dtp = (struct dirtemplate *)&omastertemplate;
1408 dirtemplate = *dtp;
1409 dirtemplate.dot_ino = ip->i_number;
1410 dirtemplate.dotdot_ino = dp->i_number;
1411 if ((error = VOP_BALLOC(tvp, (off_t)0, DIRBLKSIZ, cnp->cn_cred,
1412 B_CLRBUF, &bp)) != 0)
1413 goto bad;
1414 ip->i_size = DIRBLKSIZ;
1415 ip->i_flag |= IN_CHANGE | IN_UPDATE;
1416 vnode_pager_setsize(tvp, (u_long)ip->i_size);
1417 bcopy((caddr_t)&dirtemplate, (caddr_t)bp->b_data, sizeof dirtemplate);
1418 if (DOINGSOFTDEP(tvp)) {
1419 /*
1420 * Ensure that the entire newly allocated block is a
1421 * valid directory so that future growth within the
1422 * block does not have to ensure that the block is
1423 * written before the inode.
1424 */
1425 blkoff = DIRBLKSIZ;
1426 while (blkoff < bp->b_bcount) {
1427 ((struct direct *)
1428 (bp->b_data + blkoff))->d_reclen = DIRBLKSIZ;
1429 blkoff += DIRBLKSIZ;
1430 }
1431 }
1432 if ((error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) |
1433 DOINGASYNC(tvp)))) != 0) {
1434 (void)VOP_BWRITE(bp->b_vp, bp);
1435 goto bad;
1436 }
1437 /*
1438 * Directory set up, now install its entry in the parent directory.
1439 *
1440 * If we are not doing soft dependencies, then we must write out the
1441 * buffer containing the new directory body before entering the new
1442 * name in the parent. If we are doing soft dependencies, then the
1443 * buffer containing the new directory body will be passed to and
1444 * released in the soft dependency code after the code has attached
1445 * an appropriate ordering dependency to the buffer which ensures that
1446 * the buffer is written before the new name is written in the parent.
1447 */
1448 if (DOINGASYNC(dvp))
1449 bdwrite(bp);
1450 else if (!DOINGSOFTDEP(dvp) && ((error = VOP_BWRITE(bp->b_vp, bp))))
1451 goto bad;
1452 ufs_makedirentry(ip, cnp, &newdir);
1453 error = ufs_direnter(dvp, tvp, &newdir, cnp, bp);
1454
1455bad:
1456 if (error == 0) {
1457 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
1458 *ap->a_vpp = tvp;
1459 } else {
1460 dp->i_effnlink--;
1461 dp->i_nlink--;
1462 dp->i_flag |= IN_CHANGE;
1463 if (DOINGSOFTDEP(dvp))
1464 softdep_change_linkcnt(dp);
1465 /*
1466 * No need to do an explicit VOP_TRUNCATE here, vrele will
1467 * do this for us because we set the link count to 0.
1468 */
1469 ip->i_effnlink = 0;
1470 ip->i_nlink = 0;
1471 ip->i_flag |= IN_CHANGE;
1472 if (DOINGSOFTDEP(tvp))
1473 softdep_change_linkcnt(ip);
1474 vput(tvp);
1475 }
1476out:
1477 return (error);
1478}
1479
1480/*
1481 * Rmdir system call.
0973c589
CP
1482 *
1483 * ufs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
1484 * struct componentname *a_cnp)
984263bc 1485 */
0961aa92 1486static
984263bc 1487int
e62afb5f 1488ufs_rmdir(struct vop_old_rmdir_args *ap)
984263bc
MD
1489{
1490 struct vnode *vp = ap->a_vp;
1491 struct vnode *dvp = ap->a_dvp;
1492 struct componentname *cnp = ap->a_cnp;
1493 struct inode *ip, *dp;
1494 int error, ioflag;
1495
1496 ip = VTOI(vp);
1497 dp = VTOI(dvp);
1498
1499 /*
1500 * Do not remove a directory that is in the process of being renamed.
1501 * Verify the directory is empty (and valid). Rmdir ".." will not be
1502 * valid since ".." will contain a reference to the current directory
1503 * and thus be non-empty. Do not allow the removal of mounted on
1504 * directories (this can happen when an NFS exported filesystem
1505 * tries to remove a locally mounted on directory).
1506 */
1507 error = 0;
1508 if (ip->i_flag & IN_RENAME) {
1509 error = EINVAL;
1510 goto out;
1511 }
1512 if (ip->i_effnlink != 2 ||
1513 !ufs_dirempty(ip, dp->i_number, cnp->cn_cred)) {
1514 error = ENOTEMPTY;
1515 goto out;
1516 }
1517 if ((dp->i_flags & APPEND)
1518 || (ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))) {
1519 error = EPERM;
1520 goto out;
1521 }
1522 if (vp->v_mountedhere != 0) {
1523 error = EINVAL;
1524 goto out;
1525 }
1526 /*
1527 * Delete reference to directory before purging
1528 * inode. If we crash in between, the directory
1529 * will be reattached to lost+found,
1530 */
1531 dp->i_effnlink--;
1532 ip->i_effnlink--;
1533 if (DOINGSOFTDEP(vp)) {
1534 softdep_change_linkcnt(dp);
1535 softdep_change_linkcnt(ip);
1536 }
1537 error = ufs_dirremove(dvp, ip, cnp->cn_flags, 1);
1538 if (error) {
1539 dp->i_effnlink++;
1540 ip->i_effnlink++;
1541 if (DOINGSOFTDEP(vp)) {
1542 softdep_change_linkcnt(dp);
1543 softdep_change_linkcnt(ip);
1544 }
1545 goto out;
1546 }
1547 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
984263bc
MD
1548 /*
1549 * Truncate inode. The only stuff left in the directory is "." and
1550 * "..". The "." reference is inconsequential since we are quashing
1551 * it. The soft dependency code will arrange to do these operations
1552 * after the parent directory entry has been deleted on disk, so
1553 * when running with that code we avoid doing them now.
1554 */
1555 if (!DOINGSOFTDEP(vp)) {
1556 dp->i_nlink--;
1557 dp->i_flag |= IN_CHANGE;
1558 ip->i_nlink--;
1559 ip->i_flag |= IN_CHANGE;
1560 ioflag = DOINGASYNC(vp) ? 0 : IO_SYNC;
1561 error = UFS_TRUNCATE(vp, (off_t)0, ioflag, cnp->cn_cred,
dadab5e9 1562 cnp->cn_td);
984263bc 1563 }
fad57d0e 1564 /* cache_purge removed - handled by VFS compat layer */
984263bc
MD
1565#ifdef UFS_DIRHASH
1566 /* Kill any active hash; i_effnlink == 0, so it will not come back. */
1567 if (ip->i_dirhash != NULL)
1568 ufsdirhash_free(ip);
1569#endif
1570out:
1571 VN_KNOTE(vp, NOTE_DELETE);
1572 return (error);
1573}
1574
1575/*
1576 * symlink -- make a symbolic link
0973c589
CP
1577 *
1578 * ufs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
1579 * struct componentname *a_cnp, struct vattr *a_vap,
1580 * char *a_target)
984263bc 1581 */
0961aa92 1582static
984263bc 1583int
e62afb5f 1584ufs_symlink(struct vop_old_symlink_args *ap)
984263bc 1585{
3ff2135f
RG
1586 struct vnode *vp, **vpp = ap->a_vpp;
1587 struct inode *ip;
984263bc
MD
1588 int len, error;
1589
1590 error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
1591 vpp, ap->a_cnp);
1592 if (error)
1593 return (error);
1594 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
1595 vp = *vpp;
1596 len = strlen(ap->a_target);
1597 if (len < vp->v_mount->mnt_maxsymlinklen) {
1598 ip = VTOI(vp);
1599 bcopy(ap->a_target, (char *)ip->i_shortlink, len);
1600 ip->i_size = len;
1601 ip->i_flag |= IN_CHANGE | IN_UPDATE;
1602 } else
1603 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
dadab5e9
MD
1604 UIO_SYSSPACE, IO_NODELOCKED, ap->a_cnp->cn_cred,
1605 (int *)0, NULL);
984263bc
MD
1606 if (error)
1607 vput(vp);
1608 return (error);
1609}
1610
1611/*
1612 * Vnode op for reading directories.
1613 *
1614 * The routine below assumes that the on-disk format of a directory
1615 * is the same as that defined by <sys/dirent.h>. If the on-disk
1616 * format changes, then it will be necessary to do a conversion
1617 * from the on-disk format that read returns to the format defined
1618 * by <sys/dirent.h>.
0973c589
CP
1619 *
1620 * ufs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
1621 * int *a_eofflag, int *ncookies, u_long **a_cookies)
984263bc 1622 */
0961aa92 1623static
984263bc 1624int
0973c589 1625ufs_readdir(struct vop_readdir_args *ap)
984263bc 1626{
3ff2135f 1627 struct uio *uio = ap->a_uio;
e088dc32
JS
1628 int count, error;
1629
1630 struct direct *edp, *dp;
1631 int ncookies;
e088dc32
JS
1632 struct uio auio;
1633 struct iovec aiov;
1634 caddr_t dirbuf;
82fd1984 1635 int readcnt, retval;
e088dc32 1636 off_t startoffset = uio->uio_offset;
984263bc 1637
984263bc 1638 count = uio->uio_resid;
e088dc32
JS
1639 /*
1640 * Avoid complications for partial directory entries by adjusting
1641 * the i/o to end at a block boundary. Don't give up (like the old ufs
1642 * does) if the initial adjustment gives a negative count, since
1643 * many callers don't supply a large enough buffer. The correct
1644 * size is a little larger than DIRBLKSIZ to allow for expansion
1645 * of directory entries, but some callers just use 512.
1646 */
984263bc 1647 count -= (uio->uio_offset + count) & (DIRBLKSIZ -1);
e088dc32
JS
1648 if (count <= 0)
1649 count += DIRBLKSIZ;
1650
1651 auio = *uio;
1652 auio.uio_iov = &aiov;
1653 auio.uio_iovcnt = 1;
1654 auio.uio_resid = count;
1655 auio.uio_segflg = UIO_SYSSPACE;
1656 aiov.iov_len = count;
1657 MALLOC(dirbuf, caddr_t, count, M_TEMP, M_WAITOK);
1658 aiov.iov_base = dirbuf;
1659 error = VOP_READ(ap->a_vp, &auio, 0, ap->a_cred);
1660 if (error == 0) {
1661 readcnt = count - auio.uio_resid;
1662 edp = (struct direct *)&dirbuf[readcnt];
1663 ncookies = 0;
e088dc32
JS
1664 for (dp = (struct direct *)dirbuf;
1665 !error && uio->uio_resid > 0 && dp < edp; ) {
82fd1984
JS
1666 if (dp->d_reclen <= 0) {
1667 error = EIO;
1668 break;
1669 }
e088dc32
JS
1670#if BYTE_ORDER == LITTLE_ENDIAN
1671 if (OFSFMT(ap->a_vp)) {
82fd1984
JS
1672 retval = vop_write_dirent(&error, uio,
1673 dp->d_ino, dp->d_namlen, dp->d_type,
1674 dp->d_name);
e088dc32
JS
1675 } else
1676#endif
1677 {
82fd1984
JS
1678 retval = vop_write_dirent(&error, uio,
1679 dp->d_ino, dp->d_type, dp->d_namlen,
1680 dp->d_name);
e088dc32 1681 }
82fd1984
JS
1682
1683 if (retval)
e088dc32 1684 break;
82fd1984
JS
1685 /* advance dp */
1686 dp = (struct direct *)((char *)dp + dp->d_reclen);
1687 if (!error)
1688 ncookies++;
984263bc 1689 }
e088dc32
JS
1690 /* we need to correct uio_offset */
1691 uio->uio_offset = startoffset + (caddr_t)dp - dirbuf;
1692
1693 if (!error && ap->a_ncookies != NULL) {
1694 u_long *cookiep, *cookies, *ecookies;
1695 off_t off;
1696
1697 if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
1698 panic("ufs_readdir: unexpected uio from NFS server");
1699 MALLOC(cookies, u_long *, ncookies * sizeof(u_long), M_TEMP,
1700 M_WAITOK);
1701 off = startoffset;
1702 for (dp = (struct direct *)dirbuf,
1703 cookiep = cookies, ecookies = cookies + ncookies;
1704 cookiep < ecookies;
1705 dp = (struct direct *)((caddr_t) dp + dp->d_reclen)) {
1706 off += dp->d_reclen;
1707 *cookiep++ = (u_long) off;
1708 }
1709 *ap->a_ncookies = ncookies;
1710 *ap->a_cookies = cookies;
984263bc 1711 }
984263bc 1712 }
e088dc32 1713 FREE(dirbuf, M_TEMP);
984263bc 1714 if (ap->a_eofflag)
e088dc32
JS
1715 *ap->a_eofflag = VTOI(ap->a_vp)->i_size <= uio->uio_offset;
1716 return (error);
984263bc
MD
1717}
1718
1719/*
1720 * Return target name of a symbolic link
0973c589
CP
1721 *
1722 * ufs_readlink(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred)
984263bc 1723 */
0961aa92 1724static
984263bc 1725int
0973c589 1726ufs_readlink(struct vop_readlink_args *ap)
984263bc 1727{
3ff2135f
RG
1728 struct vnode *vp = ap->a_vp;
1729 struct inode *ip = VTOI(vp);
984263bc
MD
1730 int isize;
1731
1732 isize = ip->i_size;
1733 if ((isize < vp->v_mount->mnt_maxsymlinklen) ||
f719c866 1734 (ip->i_din.di_blocks == 0)) { /* XXX - for old fastlink support */
984263bc
MD
1735 uiomove((char *)ip->i_shortlink, isize, ap->a_uio);
1736 return (0);
1737 }
1738 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
1739}
1740
1741/*
1742 * Calculate the logical to physical mapping if not done already,
1743 * then call the device strategy routine.
1744 *
1745 * In order to be able to swap to a file, the VOP_BMAP operation may not
1746 * deadlock on memory. See ufs_bmap() for details.
0973c589
CP
1747 *
1748 * ufs_strategy(struct vnode *a_vp, struct buf *a_bp)
984263bc 1749 */
0961aa92 1750static
984263bc 1751int
0973c589 1752ufs_strategy(struct vop_strategy_args *ap)
984263bc 1753{
3ff2135f
RG
1754 struct buf *bp = ap->a_bp;
1755 struct vnode *vp = ap->a_vp;
1756 struct inode *ip;
984263bc
MD
1757 int error;
1758
1759 ip = VTOI(vp);
1760 if (vp->v_type == VBLK || vp->v_type == VCHR)
1761 panic("ufs_strategy: spec");
1762 if (bp->b_blkno == bp->b_lblkno) {
1763 error = VOP_BMAP(vp, bp->b_lblkno, NULL, &bp->b_blkno, NULL, NULL);
1764 if (error) {
1765 bp->b_error = error;
1766 bp->b_flags |= B_ERROR;
1767 biodone(bp);
1768 return (error);
1769 }
9ab06300 1770 if (bp->b_blkno == (daddr_t)-1)
984263bc
MD
1771 vfs_bio_clrbuf(bp);
1772 }
9ab06300 1773 if (bp->b_blkno == (daddr_t)-1) {
984263bc
MD
1774 biodone(bp);
1775 return (0);
1776 }
1777 vp = ip->i_devvp;
1778 bp->b_dev = vp->v_rdev;
1779 VOP_STRATEGY(vp, bp);
1780 return (0);
1781}
1782
1783/*
1784 * Print out the contents of an inode.
0973c589
CP
1785 *
1786 * ufs_print(struct vnode *a_vp)
984263bc 1787 */
0961aa92 1788static
984263bc 1789int
0973c589 1790ufs_print(struct vop_print_args *ap)
984263bc 1791{
3ff2135f
RG
1792 struct vnode *vp = ap->a_vp;
1793 struct inode *ip = VTOI(vp);
984263bc
MD
1794
1795 printf("tag VT_UFS, ino %lu, on dev %s (%d, %d)",
1796 (u_long)ip->i_number, devtoname(ip->i_dev), major(ip->i_dev),
1797 minor(ip->i_dev));
1798 if (vp->v_type == VFIFO)
1799 fifo_printinfo(vp);
3446c007 1800 lockmgr_printinfo(&vp->v_lock);
984263bc
MD
1801 printf("\n");
1802 return (0);
1803}
1804
1805/*
1806 * Read wrapper for special devices.
0973c589
CP
1807 *
1808 * ufsspec_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1809 * struct ucred *a_cred)
984263bc 1810 */
0961aa92 1811static
984263bc 1812int
0973c589 1813ufsspec_read(struct vop_read_args *ap)
984263bc
MD
1814{
1815 int error, resid;
1816 struct inode *ip;
1817 struct uio *uio;
1818
1819 uio = ap->a_uio;
1820 resid = uio->uio_resid;
0961aa92 1821 error = VOCALL(spec_vnode_vops, &ap->a_head);
984263bc
MD
1822 /*
1823 * The inode may have been revoked during the call, so it must not
1824 * be accessed blindly here or in the other wrapper functions.
1825 */
1826 ip = VTOI(ap->a_vp);
1827 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1828 ip->i_flag |= IN_ACCESS;
1829 return (error);
1830}
1831
1832/*
1833 * Write wrapper for special devices.
0973c589
CP
1834 *
1835 * ufsspec_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1836 * struct ucred *a_cred)
984263bc 1837 */
0961aa92 1838static
984263bc 1839int
0973c589 1840ufsspec_write(struct vop_write_args *ap)
984263bc
MD
1841{
1842 int error, resid;
1843 struct inode *ip;
1844 struct uio *uio;
1845
1846 uio = ap->a_uio;
1847 resid = uio->uio_resid;
0961aa92 1848 error = VOCALL(spec_vnode_vops, &ap->a_head);
984263bc
MD
1849 ip = VTOI(ap->a_vp);
1850 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1851 VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
1852 return (error);
1853}
1854
1855/*
1856 * Close wrapper for special devices.
1857 *
1858 * Update the times on the inode then do device close.
0973c589
CP
1859 *
1860 * ufsspec_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
1861 * struct thread *a_td)
984263bc 1862 */
0961aa92 1863static
984263bc 1864int
0973c589 1865ufsspec_close(struct vop_close_args *ap)
984263bc
MD
1866{
1867 struct vnode *vp = ap->a_vp;
1868
984263bc
MD
1869 if (vp->v_usecount > 1)
1870 ufs_itimes(vp);
0961aa92 1871 return (VOCALL(spec_vnode_vops, &ap->a_head));
984263bc
MD
1872}
1873
1874/*
1875 * Read wrapper for fifos.
0973c589
CP
1876 *
1877 * ufsfifo_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1878 * struct ucred *a_cred)
984263bc 1879 */
0961aa92 1880static
984263bc 1881int
0973c589 1882ufsfifo_read(struct vop_read_args *ap)
984263bc
MD
1883{
1884 int error, resid;
1885 struct inode *ip;
1886 struct uio *uio;
1887
1888 uio = ap->a_uio;
1889 resid = uio->uio_resid;
0961aa92 1890 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1891 ip = VTOI(ap->a_vp);
1892 if ((ap->a_vp->v_mount->mnt_flag & MNT_NOATIME) == 0 && ip != NULL &&
1893 (uio->uio_resid != resid || (error == 0 && resid != 0)))
1894 VTOI(ap->a_vp)->i_flag |= IN_ACCESS;
1895 return (error);
1896}
1897
1898/*
1899 * Write wrapper for fifos.
0973c589
CP
1900 *
1901 * ufsfifo_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1902 * struct ucred *a_cred)
984263bc 1903 */
0961aa92 1904static
984263bc 1905int
0973c589 1906ufsfifo_write(struct vop_write_args *ap)
984263bc
MD
1907{
1908 int error, resid;
1909 struct inode *ip;
1910 struct uio *uio;
1911
1912 uio = ap->a_uio;
1913 resid = uio->uio_resid;
0961aa92 1914 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1915 ip = VTOI(ap->a_vp);
1916 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1917 VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
1918 return (error);
1919}
1920
1921/*
1922 * Close wrapper for fifos.
1923 *
1924 * Update the times on the inode then do device close.
0973c589
CP
1925 *
1926 * ufsfifo_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
1927 * struct thread *a_td)
984263bc 1928 */
0961aa92 1929static
984263bc 1930int
0973c589 1931ufsfifo_close(struct vop_close_args *ap)
984263bc
MD
1932{
1933 struct vnode *vp = ap->a_vp;
1934
984263bc
MD
1935 if (vp->v_usecount > 1)
1936 ufs_itimes(vp);
0961aa92 1937 return (VOCALL(fifo_vnode_vops, &ap->a_head));
984263bc
MD
1938}
1939
1940/*
1941 * Kqfilter wrapper for fifos.
1942 *
1943 * Fall through to ufs kqfilter routines if needed
1944 */
0961aa92 1945static
984263bc 1946int
0973c589 1947ufsfifo_kqfilter(struct vop_kqfilter_args *ap)
984263bc
MD
1948{
1949 int error;
1950
0961aa92 1951 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1952 if (error)
1953 error = ufs_kqfilter(ap);
1954 return (error);
1955}
1956
1957/*
1958 * Return POSIX pathconf information applicable to ufs filesystems.
0973c589
CP
1959 *
1960 * ufs_pathconf(struct vnode *a_vp, int a_name, int *a_retval)
984263bc 1961 */
0961aa92 1962static
984263bc 1963int
0973c589 1964ufs_pathconf(struct vop_pathconf_args *ap)
984263bc 1965{
984263bc
MD
1966 switch (ap->a_name) {
1967 case _PC_LINK_MAX:
1968 *ap->a_retval = LINK_MAX;
1969 return (0);
1970 case _PC_NAME_MAX:
1971 *ap->a_retval = NAME_MAX;
1972 return (0);
1973 case _PC_PATH_MAX:
1974 *ap->a_retval = PATH_MAX;
1975 return (0);
1976 case _PC_PIPE_BUF:
1977 *ap->a_retval = PIPE_BUF;
1978 return (0);
1979 case _PC_CHOWN_RESTRICTED:
1980 *ap->a_retval = 1;
1981 return (0);
1982 case _PC_NO_TRUNC:
1983 *ap->a_retval = 1;
1984 return (0);
1985 default:
1986 return (EINVAL);
1987 }
1988 /* NOTREACHED */
1989}
1990
1991/*
1992 * Advisory record locking support
0973c589
CP
1993 *
1994 * ufs_advlock(struct vnode *a_vp, caddr_t a_id, int a_op, struct flock *a_fl,
1995 * int a_flags)
984263bc 1996 */
0961aa92 1997static
984263bc 1998int
0973c589 1999ufs_advlock(struct vop_advlock_args *ap)
984263bc 2000{
3ff2135f 2001 struct inode *ip = VTOI(ap->a_vp);
984263bc
MD
2002
2003 return (lf_advlock(ap, &(ip->i_lockf), ip->i_size));
2004}
2005
2006/*
2007 * Initialize the vnode associated with a new inode, handle aliased
2008 * vnodes.
2009 */
2010int
0961aa92 2011ufs_vinit(struct mount *mntp, struct vnode **vpp)
984263bc
MD
2012{
2013 struct inode *ip;
2014 struct vnode *vp;
2015 struct timeval tv;
2016
2017 vp = *vpp;
2018 ip = VTOI(vp);
2019 switch(vp->v_type = IFTOVT(ip->i_mode)) {
2020 case VCHR:
2021 case VBLK:
6ddb7618 2022 vp->v_ops = &mntp->mnt_vn_spec_ops;
984263bc
MD
2023 addaliasu(vp, ip->i_rdev);
2024 break;
2025 case VFIFO:
6ddb7618 2026 vp->v_ops = &mntp->mnt_vn_fifo_ops;
984263bc
MD
2027 break;
2028 default:
2029 break;
2030
2031 }
2032 if (ip->i_number == ROOTINO)
2033 vp->v_flag |= VROOT;
2034 /*
2035 * Initialize modrev times
2036 */
2037 getmicrouptime(&tv);
2038 SETHIGH(ip->i_modrev, tv.tv_sec);
2039 SETLOW(ip->i_modrev, tv.tv_usec * 4294);
2040 *vpp = vp;
2041 return (0);
2042}
2043
2044/*
2045 * Allocate a new inode.
2046 */
0961aa92 2047static
984263bc 2048int
0973c589
CP
2049ufs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp,
2050 struct componentname *cnp)
984263bc 2051{
3ff2135f 2052 struct inode *ip, *pdir;
984263bc
MD
2053 struct direct newdir;
2054 struct vnode *tvp;
2055 int error;
2056
2057 pdir = VTOI(dvp);
984263bc
MD
2058 *vpp = NULL;
2059 if ((mode & IFMT) == 0)
2060 mode |= IFREG;
2061
2062 error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
2063 if (error)
2064 return (error);
2065 ip = VTOI(tvp);
2066 ip->i_gid = pdir->i_gid;
2067#ifdef SUIDDIR
2068 {
2069#ifdef QUOTA
2070 struct ucred ucred, *ucp;
2071 ucp = cnp->cn_cred;
2072#endif
2073 /*
2074 * If we are not the owner of the directory,
2075 * and we are hacking owners here, (only do this where told to)
2076 * and we are not giving it TO root, (would subvert quotas)
2077 * then go ahead and give it to the other user.
2078 * Note that this drops off the execute bits for security.
2079 */
2080 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
2081 (pdir->i_mode & ISUID) &&
2082 (pdir->i_uid != cnp->cn_cred->cr_uid) && pdir->i_uid) {
2083 ip->i_uid = pdir->i_uid;
2084 mode &= ~07111;
2085#ifdef QUOTA
2086 /*
2087 * Make sure the correct user gets charged
2088 * for the space.
2089 * Quickly knock up a dummy credential for the victim.
2090 * XXX This seems to never be accessed out of our
2091 * context so a stack variable is ok.
2092 */
2093 ucred.cr_ref = 1;
2094 ucred.cr_uid = ip->i_uid;
2095 ucred.cr_ngroups = 1;
2096 ucred.cr_groups[0] = pdir->i_gid;
2097 ucp = &ucred;
2098#endif
2099 } else
2100 ip->i_uid = cnp->cn_cred->cr_uid;
2101
2102#ifdef QUOTA
2103 if ((error = getinoquota(ip)) ||
2104 (error = chkiq(ip, 1, ucp, 0))) {
2105 UFS_VFREE(tvp, ip->i_number, mode);
2106 vput(tvp);
2107 return (error);
2108 }
2109#endif
2110 }
2111#else /* !SUIDDIR */
2112 ip->i_uid = cnp->cn_cred->cr_uid;
2113#ifdef QUOTA
2114 if ((error = getinoquota(ip)) ||
2115 (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
2116 UFS_VFREE(tvp, ip->i_number, mode);
2117 vput(tvp);
2118 return (error);
2119 }
2120#endif
2121#endif /* !SUIDDIR */
2122 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
2123 ip->i_mode = mode;
2124 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
2125 ip->i_effnlink = 1;
2126 ip->i_nlink = 1;
2127 if (DOINGSOFTDEP(tvp))
2128 softdep_change_linkcnt(ip);
2129 if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
dadab5e9 2130 suser_cred(cnp->cn_cred, 0)) {
984263bc 2131 ip->i_mode &= ~ISGID;
41c20dac 2132 }
984263bc 2133
2b69e610 2134 if (cnp->cn_flags & CNP_ISWHITEOUT)
984263bc
MD
2135 ip->i_flags |= UF_OPAQUE;
2136
2137 /*
2138 * Make sure inode goes to disk before directory entry.
2139 */
2140 error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) | DOINGASYNC(tvp)));
2141 if (error)
2142 goto bad;
2143 ufs_makedirentry(ip, cnp, &newdir);
2144 error = ufs_direnter(dvp, tvp, &newdir, cnp, NULL);
2145 if (error)
2146 goto bad;
2147 *vpp = tvp;
2148 return (0);
2149
2150bad:
2151 /*
2152 * Write error occurred trying to update the inode
2153 * or the directory so must deallocate the inode.
2154 */
2155 ip->i_effnlink = 0;
2156 ip->i_nlink = 0;
2157 ip->i_flag |= IN_CHANGE;
2158 if (DOINGSOFTDEP(tvp))
2159 softdep_change_linkcnt(ip);
2160 vput(tvp);
2161 return (error);
2162}
2163
2164static int
0973c589 2165ufs_missingop(struct vop_generic_args *ap)
984263bc 2166{
984263bc
MD
2167 panic("no vop function for %s in ufs child", ap->a_desc->vdesc_name);
2168 return (EOPNOTSUPP);
2169}
2170
2171static struct filterops ufsread_filtops =
2172 { 1, NULL, filt_ufsdetach, filt_ufsread };
2173static struct filterops ufswrite_filtops =
2174 { 1, NULL, filt_ufsdetach, filt_ufswrite };
2175static struct filterops ufsvnode_filtops =
2176 { 1, NULL, filt_ufsdetach, filt_ufsvnode };
2177
0973c589
CP
2178/*
2179 * ufs_kqfilter(struct vnode *a_vp, struct knote *a_kn)
2180 */
984263bc 2181static int
0973c589 2182ufs_kqfilter(struct vop_kqfilter_args *ap)
984263bc
MD
2183{
2184 struct vnode *vp = ap->a_vp;
2185 struct knote *kn = ap->a_kn;
41a01a4d 2186 lwkt_tokref ilock;
984263bc
MD
2187
2188 switch (kn->kn_filter) {
2189 case EVFILT_READ:
2190 kn->kn_fop = &ufsread_filtops;
2191 break;
2192 case EVFILT_WRITE:
2193 kn->kn_fop = &ufswrite_filtops;
2194 break;
2195 case EVFILT_VNODE:
2196 kn->kn_fop = &ufsvnode_filtops;
2197 break;
2198 default:
2199 return (1);
2200 }
2201
2202 kn->kn_hook = (caddr_t)vp;
2203
41a01a4d 2204 lwkt_gettoken(&ilock, &vp->v_pollinfo.vpi_token);
984263bc 2205 SLIST_INSERT_HEAD(&vp->v_pollinfo.vpi_selinfo.si_note, kn, kn_selnext);
41a01a4d 2206 lwkt_reltoken(&ilock);
984263bc
MD
2207
2208 return (0);
2209}
2210
2211static void
2212filt_ufsdetach(struct knote *kn)
2213{
2214 struct vnode *vp = (struct vnode *)kn->kn_hook;
41a01a4d 2215 lwkt_tokref ilock;
984263bc 2216
41a01a4d 2217 lwkt_gettoken(&ilock, &vp->v_pollinfo.vpi_token);
984263bc
MD
2218 SLIST_REMOVE(&vp->v_pollinfo.vpi_selinfo.si_note,
2219 kn, knote, kn_selnext);
41a01a4d 2220 lwkt_reltoken(&ilock);
984263bc
MD
2221}
2222
2223/*ARGSUSED*/
2224static int
2225filt_ufsread(struct knote *kn, long hint)
2226{
2227 struct vnode *vp = (struct vnode *)kn->kn_hook;
2228 struct inode *ip = VTOI(vp);
2229
2230 /*
2231 * filesystem is gone, so set the EOF flag and schedule
2232 * the knote for deletion.
2233 */
2234 if (hint == NOTE_REVOKE) {
2235 kn->kn_flags |= (EV_EOF | EV_ONESHOT);
2236 return (1);
2237 }
2238
2239 kn->kn_data = ip->i_size - kn->kn_fp->f_offset;
2240 return (kn->kn_data != 0);
2241}
2242
2243/*ARGSUSED*/
2244static int
2245filt_ufswrite(struct knote *kn, long hint)
2246{
984263bc
MD
2247 /*
2248 * filesystem is gone, so set the EOF flag and schedule
2249 * the knote for deletion.
2250 */
2251 if (hint == NOTE_REVOKE)
2252 kn->kn_flags |= (EV_EOF | EV_ONESHOT);
2253
2254 kn->kn_data = 0;
2255 return (1);
2256}
2257
2258static int
2259filt_ufsvnode(struct knote *kn, long hint)
2260{
984263bc
MD
2261 if (kn->kn_sfflags & hint)
2262 kn->kn_fflags |= hint;
2263 if (hint == NOTE_REVOKE) {
2264 kn->kn_flags |= EV_EOF;
2265 return (1);
2266 }
2267 return (kn->kn_fflags != 0);
2268}
2269
2270/* Global vfs data structures for ufs. */
2d3e977e 2271static struct vop_ops *ufs_vnode_vops;
984263bc 2272static struct vnodeopv_entry_desc ufs_vnodeop_entries[] = {
2d3e977e 2273 { &vop_default_desc, vop_defaultop },
625ddaba
JS
2274 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2275 { &vop_read_desc, (vnodeopv_entry_t) ufs_missingop },
2276 { &vop_reallocblks_desc, (vnodeopv_entry_t) ufs_missingop },
2277 { &vop_write_desc, (vnodeopv_entry_t) ufs_missingop },
2278 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2279 { &vop_advlock_desc, (vnodeopv_entry_t) ufs_advlock },
2280 { &vop_bmap_desc, (vnodeopv_entry_t) ufs_bmap },
e62afb5f 2281 { &vop_old_lookup_desc, (vnodeopv_entry_t) ufs_lookup },
625ddaba 2282 { &vop_close_desc, (vnodeopv_entry_t) ufs_close },
e62afb5f 2283 { &vop_old_create_desc, (vnodeopv_entry_t) ufs_create },
625ddaba
JS
2284 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2285 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2286 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
e62afb5f 2287 { &vop_old_link_desc, (vnodeopv_entry_t) ufs_link },
625ddaba 2288 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
e62afb5f
MD
2289 { &vop_old_mkdir_desc, (vnodeopv_entry_t) ufs_mkdir },
2290 { &vop_old_mknod_desc, (vnodeopv_entry_t) ufs_mknod },
625ddaba
JS
2291 { &vop_mmap_desc, (vnodeopv_entry_t) ufs_mmap },
2292 { &vop_open_desc, (vnodeopv_entry_t) ufs_open },
2293 { &vop_pathconf_desc, (vnodeopv_entry_t) ufs_pathconf },
2294 { &vop_poll_desc, (vnodeopv_entry_t) vop_stdpoll },
2295 { &vop_kqfilter_desc, (vnodeopv_entry_t) ufs_kqfilter },
2296 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2297 { &vop_readdir_desc, (vnodeopv_entry_t) ufs_readdir },
2298 { &vop_readlink_desc, (vnodeopv_entry_t) ufs_readlink },
2299 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
e62afb5f
MD
2300 { &vop_old_remove_desc, (vnodeopv_entry_t) ufs_remove },
2301 { &vop_old_rename_desc, (vnodeopv_entry_t) ufs_rename },
2302 { &vop_old_rmdir_desc, (vnodeopv_entry_t) ufs_rmdir },
625ddaba
JS
2303 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2304 { &vop_strategy_desc, (vnodeopv_entry_t) ufs_strategy },
e62afb5f 2305 { &vop_old_symlink_desc, (vnodeopv_entry_t) ufs_symlink },
625ddaba 2306 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
e62afb5f 2307 { &vop_old_whiteout_desc, (vnodeopv_entry_t) ufs_whiteout },
984263bc
MD
2308 { NULL, NULL }
2309};
2310static struct vnodeopv_desc ufs_vnodeop_opv_desc =
2d3e977e 2311 { &ufs_vnode_vops, ufs_vnodeop_entries };
984263bc 2312
2d3e977e 2313static struct vop_ops *ufs_spec_vops;
984263bc 2314static struct vnodeopv_entry_desc ufs_specop_entries[] = {
625ddaba
JS
2315 { &vop_default_desc, (vnodeopv_entry_t) spec_vnoperate },
2316 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2317 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2318 { &vop_close_desc, (vnodeopv_entry_t) ufsspec_close },
2319 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2320 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2321 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
2322 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
2323 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2324 { &vop_read_desc, (vnodeopv_entry_t) ufsspec_read },
2325 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
2326 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2327 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
2328 { &vop_write_desc, (vnodeopv_entry_t) ufsspec_write },
984263bc
MD
2329 { NULL, NULL }
2330};
2331static struct vnodeopv_desc ufs_specop_opv_desc =
2d3e977e 2332 { &ufs_spec_vops, ufs_specop_entries };
984263bc 2333
2d3e977e 2334static struct vop_ops *ufs_fifo_vops;
984263bc 2335static struct vnodeopv_entry_desc ufs_fifoop_entries[] = {
625ddaba
JS
2336 { &vop_default_desc, (vnodeopv_entry_t) fifo_vnoperate },
2337 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2338 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2339 { &vop_close_desc, (vnodeopv_entry_t) ufsfifo_close },
2340 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2341 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2342 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
2343 { &vop_kqfilter_desc, (vnodeopv_entry_t) ufsfifo_kqfilter },
2344 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
2345 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2346 { &vop_read_desc, (vnodeopv_entry_t) ufsfifo_read },
2347 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
2348 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2349 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
2350 { &vop_write_desc, (vnodeopv_entry_t) ufsfifo_write },
984263bc
MD
2351 { NULL, NULL }
2352};
2353static struct vnodeopv_desc ufs_fifoop_opv_desc =
2d3e977e 2354 { &ufs_fifo_vops, ufs_fifoop_entries };
984263bc
MD
2355
2356VNODEOP_SET(ufs_vnodeop_opv_desc);
2357VNODEOP_SET(ufs_specop_opv_desc);
2358VNODEOP_SET(ufs_fifoop_opv_desc);
2359
0973c589
CP
2360/*
2361 * ufs_vnoperate(struct vnodeop_desc *a_desc)
2362 */
984263bc 2363int
0973c589 2364ufs_vnoperate(struct vop_generic_args *ap)
984263bc 2365{
0961aa92 2366 return (VOCALL(ufs_vnode_vops, ap));
984263bc
MD
2367}
2368
0973c589
CP
2369/*
2370 * ufs_vnoperatefifo(struct vnodeop_desc *a_desc)
2371 */
984263bc 2372int
0973c589 2373ufs_vnoperatefifo(struct vop_generic_args *ap)
984263bc 2374{
0961aa92 2375 return (VOCALL(ufs_fifo_vops, ap));
984263bc
MD
2376}
2377
0973c589
CP
2378/*
2379 * ufs_vnoperatespec(struct vnodeop_desc *a_desc)
2380 */
984263bc 2381int
0973c589 2382ufs_vnoperatespec(struct vop_generic_args *ap)
984263bc 2383{
0961aa92 2384 return (VOCALL(ufs_spec_vops, ap));
984263bc 2385}