If softupdates or some other entity re-dirties a buffer, make sure
[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 $
1c843a13 40 * $DragonFly: src/sys/vfs/ufs/ufs_vnops.c,v 1.42 2006/04/07 06:38:33 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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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
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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 *);
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
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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
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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);
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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
e088dc32
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138#define OFSFMT(vp) ((vp)->v_mount->mnt_maxsymlinklen <= 0)
139
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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)
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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)
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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)
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210 */
211/* ARGSUSED */
0961aa92 212static
984263bc 213int
e62afb5f 214ufs_mknod(struct vop_old_mknod_args *ap)
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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 */
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241 (*vpp)->v_type = VNON;
242 ino = ip->i_number; /* Save this before vgone() invalidates ip. */
243 vgone(*vpp);
5fd012e0 244 vput(*vpp);
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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)
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260 */
261/* ARGSUSED */
0961aa92 262static
984263bc 263int
0973c589 264ufs_open(struct vop_open_args *ap)
984263bc 265{
7540ab49
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266 struct vnode *vp = ap->a_vp;
267
984263bc
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268 /*
269 * Files marked append-only must be opened for appending.
270 */
7540ab49
MD
271 if ((VTOI(vp)->i_flags & APPEND) &&
272 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE) {
984263bc 273 return (EPERM);
7540ab49
MD
274 }
275
8ddc6004 276 return (vop_stdopen(ap));
984263bc
MD
277}
278
279/*
280 * Close called.
281 *
282 * Update the times on the inode.
0973c589
CP
283 *
284 * ufs_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
285 * struct thread *a_td)
984263bc
MD
286 */
287/* ARGSUSED */
0961aa92 288static
984263bc 289int
0973c589 290ufs_close(struct vop_close_args *ap)
984263bc 291{
3ff2135f 292 struct vnode *vp = ap->a_vp;
984263bc 293
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MD
294 if (vp->v_usecount > 1)
295 ufs_itimes(vp);
8ddc6004 296 return (vop_stdclose(ap));
984263bc
MD
297}
298
0973c589
CP
299/*
300 * ufs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred,
301 * struct thread *a_td)
302 */
0961aa92 303static
984263bc 304int
0973c589 305ufs_access(struct vop_access_args *ap)
984263bc
MD
306{
307 struct vnode *vp = ap->a_vp;
308 struct inode *ip = VTOI(vp);
309 struct ucred *cred = ap->a_cred;
310 mode_t mask, mode = ap->a_mode;
3ff2135f 311 gid_t *gp;
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MD
312 int i;
313#ifdef QUOTA
314 int error;
315#endif
316
317 /*
f719c866 318 * Disallow write attempts on read-only filesystems;
984263bc 319 * unless the file is a socket, fifo, or a block or
f719c866 320 * character device resident on the filesystem.
984263bc
MD
321 */
322 if (mode & VWRITE) {
323 switch (vp->v_type) {
324 case VDIR:
325 case VLNK:
326 case VREG:
327 if (vp->v_mount->mnt_flag & MNT_RDONLY)
328 return (EROFS);
329#ifdef QUOTA
50e58362 330 if ((error = ufs_getinoquota(ip)) != 0)
984263bc
MD
331 return (error);
332#endif
333 break;
334 default:
335 break;
336 }
337 }
338
339 /* If immutable bit set, nobody gets to write it. */
340 if ((mode & VWRITE) && (ip->i_flags & IMMUTABLE))
341 return (EPERM);
342
343 /* Otherwise, user id 0 always gets access. */
344 if (cred->cr_uid == 0)
345 return (0);
346
347 mask = 0;
348
349 /* Otherwise, check the owner. */
350 if (cred->cr_uid == ip->i_uid) {
351 if (mode & VEXEC)
352 mask |= S_IXUSR;
353 if (mode & VREAD)
354 mask |= S_IRUSR;
355 if (mode & VWRITE)
356 mask |= S_IWUSR;
357 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
358 }
359
360 /* Otherwise, check the groups. */
361 for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++)
362 if (ip->i_gid == *gp) {
363 if (mode & VEXEC)
364 mask |= S_IXGRP;
365 if (mode & VREAD)
366 mask |= S_IRGRP;
367 if (mode & VWRITE)
368 mask |= S_IWGRP;
369 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
370 }
371
372 /* Otherwise, check everyone else. */
373 if (mode & VEXEC)
374 mask |= S_IXOTH;
375 if (mode & VREAD)
376 mask |= S_IROTH;
377 if (mode & VWRITE)
378 mask |= S_IWOTH;
379 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
380}
381
0973c589
CP
382/*
383 * ufs_getattr(struct vnode *a_vp, struct vattr *a_vap,
384 * struct thread *a_td)
385 */
984263bc 386/* ARGSUSED */
0961aa92 387static
984263bc 388int
0973c589 389ufs_getattr(struct vop_getattr_args *ap)
984263bc 390{
3ff2135f
RG
391 struct vnode *vp = ap->a_vp;
392 struct inode *ip = VTOI(vp);
393 struct vattr *vap = ap->a_vap;
984263bc 394
dc1be39c
MD
395 /*
396 * This may cause i_fsmid to be updated even if no change (0)
397 * is returned, but we should only write out the inode if non-zero
398 * is returned and if the mount is read-write.
399 */
400 if (cache_check_fsmid_vp(vp, &ip->i_fsmid) &&
401 (vp->v_mount->mnt_flag & MNT_RDONLY) == 0
402 ) {
403 ip->i_flag |= IN_LAZYMOD;
404 }
405
984263bc
MD
406 ufs_itimes(vp);
407 /*
408 * Copy from inode table
409 */
410 vap->va_fsid = dev2udev(ip->i_dev);
411 vap->va_fileid = ip->i_number;
412 vap->va_mode = ip->i_mode & ~IFMT;
413 vap->va_nlink = VFSTOUFS(vp->v_mount)->um_i_effnlink_valid ?
414 ip->i_effnlink : ip->i_nlink;
415 vap->va_uid = ip->i_uid;
416 vap->va_gid = ip->i_gid;
417 vap->va_rdev = ip->i_rdev;
418 vap->va_size = ip->i_din.di_size;
419 vap->va_atime.tv_sec = ip->i_atime;
420 vap->va_atime.tv_nsec = ip->i_atimensec;
421 vap->va_mtime.tv_sec = ip->i_mtime;
422 vap->va_mtime.tv_nsec = ip->i_mtimensec;
423 vap->va_ctime.tv_sec = ip->i_ctime;
424 vap->va_ctime.tv_nsec = ip->i_ctimensec;
425 vap->va_flags = ip->i_flags;
426 vap->va_gen = ip->i_gen;
427 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
428 vap->va_bytes = dbtob((u_quad_t)ip->i_blocks);
429 vap->va_type = IFTOVT(ip->i_mode);
430 vap->va_filerev = ip->i_modrev;
dc1be39c 431 vap->va_fsmid = ip->i_fsmid;
984263bc
MD
432 return (0);
433}
434
435/*
436 * Set attribute vnode op. called from several syscalls
0973c589
CP
437 *
438 * ufs_setattr(struct vnode *a_vp, struct vattr *a_vap,
439 * struct ucred *a_cred, struct thread *a_td)
984263bc 440 */
0961aa92 441static
984263bc 442int
0973c589 443ufs_setattr(struct vop_setattr_args *ap)
984263bc
MD
444{
445 struct vattr *vap = ap->a_vap;
446 struct vnode *vp = ap->a_vp;
447 struct inode *ip = VTOI(vp);
448 struct ucred *cred = ap->a_cred;
984263bc
MD
449 int error;
450
451 /*
452 * Check for unsettable attributes.
453 */
454 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
455 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
456 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
457 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
458 return (EINVAL);
459 }
460 if (vap->va_flags != VNOVAL) {
461 if (vp->v_mount->mnt_flag & MNT_RDONLY)
462 return (EROFS);
463 if (cred->cr_uid != ip->i_uid &&
dadab5e9 464 (error = suser_cred(cred, PRISON_ROOT)))
984263bc 465 return (error);
21c8b4bd
MD
466 /*
467 * Note that a root chflags becomes a user chflags when
468 * we are jailed, unless the jail.chflags_allowed sysctl
469 * is set.
470 */
471 if (cred->cr_uid == 0 &&
472 (!jailed(cred) || jail_chflags_allowed)) {
984263bc
MD
473 if ((ip->i_flags
474 & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND)) &&
475 securelevel > 0)
476 return (EPERM);
477 ip->i_flags = vap->va_flags;
478 } else {
479 if (ip->i_flags
480 & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
481 (vap->va_flags & UF_SETTABLE) != vap->va_flags)
482 return (EPERM);
483 ip->i_flags &= SF_SETTABLE;
484 ip->i_flags |= (vap->va_flags & UF_SETTABLE);
485 }
486 ip->i_flag |= IN_CHANGE;
487 if (vap->va_flags & (IMMUTABLE | APPEND))
488 return (0);
489 }
490 if (ip->i_flags & (IMMUTABLE | APPEND))
491 return (EPERM);
492 /*
493 * Go through the fields and update iff not VNOVAL.
494 */
495 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
496 if (vp->v_mount->mnt_flag & MNT_RDONLY)
497 return (EROFS);
dadab5e9 498 if ((error = ufs_chown(vp, vap->va_uid, vap->va_gid, cred, ap->a_td)) != 0)
984263bc
MD
499 return (error);
500 }
501 if (vap->va_size != VNOVAL) {
502 /*
f719c866 503 * Disallow write attempts on read-only filesystems;
984263bc 504 * unless the file is a socket, fifo, or a block or
f719c866 505 * character device resident on the filesystem.
984263bc
MD
506 */
507 switch (vp->v_type) {
508 case VDIR:
509 return (EISDIR);
510 case VLNK:
511 case VREG:
512 if (vp->v_mount->mnt_flag & MNT_RDONLY)
513 return (EROFS);
514 break;
515 default:
516 break;
517 }
dadab5e9 518 if ((error = UFS_TRUNCATE(vp, vap->va_size, 0, cred, ap->a_td)) != 0)
984263bc
MD
519 return (error);
520 }
521 ip = VTOI(vp);
522 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
523 if (vp->v_mount->mnt_flag & MNT_RDONLY)
524 return (EROFS);
525 if (cred->cr_uid != ip->i_uid &&
dadab5e9 526 (error = suser_cred(cred, PRISON_ROOT)) &&
984263bc 527 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
dadab5e9 528 (error = VOP_ACCESS(vp, VWRITE, cred, ap->a_td))))
984263bc
MD
529 return (error);
530 if (vap->va_atime.tv_sec != VNOVAL)
531 ip->i_flag |= IN_ACCESS;
532 if (vap->va_mtime.tv_sec != VNOVAL)
533 ip->i_flag |= IN_CHANGE | IN_UPDATE;
534 ufs_itimes(vp);
535 if (vap->va_atime.tv_sec != VNOVAL) {
536 ip->i_atime = vap->va_atime.tv_sec;
537 ip->i_atimensec = vap->va_atime.tv_nsec;
538 }
539 if (vap->va_mtime.tv_sec != VNOVAL) {
540 ip->i_mtime = vap->va_mtime.tv_sec;
541 ip->i_mtimensec = vap->va_mtime.tv_nsec;
542 }
543 error = UFS_UPDATE(vp, 0);
544 if (error)
545 return (error);
546 }
547 error = 0;
548 if (vap->va_mode != (mode_t)VNOVAL) {
549 if (vp->v_mount->mnt_flag & MNT_RDONLY)
550 return (EROFS);
dadab5e9 551 error = ufs_chmod(vp, (int)vap->va_mode, cred, ap->a_td);
984263bc
MD
552 }
553 VN_KNOTE(vp, NOTE_ATTRIB);
554 return (error);
555}
556
557/*
558 * Change the mode on a file.
559 * Inode must be locked before calling.
560 */
561static int
dadab5e9 562ufs_chmod(struct vnode *vp, int mode, struct ucred *cred, struct thread *td)
984263bc 563{
3ff2135f 564 struct inode *ip = VTOI(vp);
984263bc
MD
565 int error;
566
567 if (cred->cr_uid != ip->i_uid) {
dadab5e9 568 error = suser_cred(cred, PRISON_ROOT);
984263bc
MD
569 if (error)
570 return (error);
571 }
572 if (cred->cr_uid) {
573 if (vp->v_type != VDIR && (mode & S_ISTXT))
574 return (EFTYPE);
575 if (!groupmember(ip->i_gid, cred) && (mode & ISGID))
576 return (EPERM);
577 }
578 ip->i_mode &= ~ALLPERMS;
579 ip->i_mode |= (mode & ALLPERMS);
580 ip->i_flag |= IN_CHANGE;
581 return (0);
582}
583
584/*
585 * Perform chown operation on inode ip;
586 * inode must be locked prior to call.
587 */
588static int
0973c589
CP
589ufs_chown(struct vnode *vp, uid_t uid, gid_t gid, struct ucred *cred,
590 struct thread *td)
984263bc 591{
3ff2135f 592 struct inode *ip = VTOI(vp);
984263bc
MD
593 uid_t ouid;
594 gid_t ogid;
595 int error = 0;
596#ifdef QUOTA
3ff2135f 597 int i;
984263bc
MD
598 long change;
599#endif
600
601 if (uid == (uid_t)VNOVAL)
602 uid = ip->i_uid;
603 if (gid == (gid_t)VNOVAL)
604 gid = ip->i_gid;
605 /*
606 * If we don't own the file, are trying to change the owner
607 * of the file, or are not a member of the target group,
608 * the caller must be superuser or the call fails.
609 */
610 if ((cred->cr_uid != ip->i_uid || uid != ip->i_uid ||
a10e3626
DR
611 (gid != ip->i_gid && !(cred->cr_gid == gid ||
612 groupmember((gid_t)gid, cred)))) &&
dadab5e9 613 (error = suser_cred(cred, PRISON_ROOT)))
984263bc
MD
614 return (error);
615 ogid = ip->i_gid;
616 ouid = ip->i_uid;
617#ifdef QUOTA
50e58362 618 if ((error = ufs_getinoquota(ip)) != 0)
984263bc
MD
619 return (error);
620 if (ouid == uid) {
50e58362 621 ufs_dqrele(vp, ip->i_dquot[USRQUOTA]);
984263bc
MD
622 ip->i_dquot[USRQUOTA] = NODQUOT;
623 }
624 if (ogid == gid) {
50e58362 625 ufs_dqrele(vp, ip->i_dquot[GRPQUOTA]);
984263bc
MD
626 ip->i_dquot[GRPQUOTA] = NODQUOT;
627 }
628 change = ip->i_blocks;
50e58362
MD
629 (void) ufs_chkdq(ip, -change, cred, CHOWN);
630 (void) ufs_chkiq(ip, -1, cred, CHOWN);
984263bc 631 for (i = 0; i < MAXQUOTAS; i++) {
50e58362 632 ufs_dqrele(vp, ip->i_dquot[i]);
984263bc
MD
633 ip->i_dquot[i] = NODQUOT;
634 }
635#endif
636 ip->i_gid = gid;
637 ip->i_uid = uid;
638#ifdef QUOTA
50e58362 639 if ((error = ufs_getinoquota(ip)) == 0) {
984263bc 640 if (ouid == uid) {
50e58362 641 ufs_dqrele(vp, ip->i_dquot[USRQUOTA]);
984263bc
MD
642 ip->i_dquot[USRQUOTA] = NODQUOT;
643 }
644 if (ogid == gid) {
50e58362 645 ufs_dqrele(vp, ip->i_dquot[GRPQUOTA]);
984263bc
MD
646 ip->i_dquot[GRPQUOTA] = NODQUOT;
647 }
50e58362
MD
648 if ((error = ufs_chkdq(ip, change, cred, CHOWN)) == 0) {
649 if ((error = ufs_chkiq(ip, 1, cred, CHOWN)) == 0)
984263bc
MD
650 goto good;
651 else
50e58362 652 (void)ufs_chkdq(ip, -change, cred, CHOWN|FORCE);
984263bc
MD
653 }
654 for (i = 0; i < MAXQUOTAS; i++) {
50e58362 655 ufs_dqrele(vp, ip->i_dquot[i]);
984263bc
MD
656 ip->i_dquot[i] = NODQUOT;
657 }
658 }
659 ip->i_gid = ogid;
660 ip->i_uid = ouid;
50e58362 661 if (ufs_getinoquota(ip) == 0) {
984263bc 662 if (ouid == uid) {
50e58362 663 ufs_dqrele(vp, ip->i_dquot[USRQUOTA]);
984263bc
MD
664 ip->i_dquot[USRQUOTA] = NODQUOT;
665 }
666 if (ogid == gid) {
50e58362 667 ufs_dqrele(vp, ip->i_dquot[GRPQUOTA]);
984263bc
MD
668 ip->i_dquot[GRPQUOTA] = NODQUOT;
669 }
50e58362
MD
670 (void) ufs_chkdq(ip, change, cred, FORCE|CHOWN);
671 (void) ufs_chkiq(ip, 1, cred, FORCE|CHOWN);
672 (void) ufs_getinoquota(ip);
984263bc
MD
673 }
674 return (error);
675good:
50e58362 676 if (ufs_getinoquota(ip))
984263bc
MD
677 panic("ufs_chown: lost quota");
678#endif /* QUOTA */
679 ip->i_flag |= IN_CHANGE;
680 if (cred->cr_uid != 0 && (ouid != uid || ogid != gid))
681 ip->i_mode &= ~(ISUID | ISGID);
682 return (0);
683}
684
685/*
686 * Mmap a file
687 *
688 * NB Currently unsupported.
0973c589
CP
689 *
690 * ufs_mmap(struct vnode *a_vp, int a_fflags, struct ucred *a_cred,
691 * struct thread *a_td)
984263bc
MD
692 */
693/* ARGSUSED */
0961aa92 694static
984263bc 695int
0973c589 696ufs_mmap(struct vop_mmap_args *ap)
984263bc 697{
984263bc
MD
698 return (EINVAL);
699}
700
0973c589
CP
701/*
702 * ufs_remove(struct vnode *a_dvp, struct vnode *a_vp,
703 * struct componentname *a_cnp)
704 */
0961aa92 705static
984263bc 706int
e62afb5f 707ufs_remove(struct vop_old_remove_args *ap)
984263bc
MD
708{
709 struct inode *ip;
710 struct vnode *vp = ap->a_vp;
711 struct vnode *dvp = ap->a_dvp;
712 int error;
713
714 ip = VTOI(vp);
715 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
716 (VTOI(dvp)->i_flags & APPEND)) {
717 error = EPERM;
718 goto out;
719 }
720 error = ufs_dirremove(dvp, ip, ap->a_cnp->cn_flags, 0);
721 VN_KNOTE(vp, NOTE_DELETE);
722 VN_KNOTE(dvp, NOTE_WRITE);
723out:
724 return (error);
725}
726
727/*
728 * link vnode call
0973c589
CP
729 *
730 * ufs_link(struct vnode *a_tdvp, struct vnode *a_vp,
731 * struct componentname *a_cnp)
984263bc 732 */
0961aa92 733static
984263bc 734int
e62afb5f 735ufs_link(struct vop_old_link_args *ap)
984263bc
MD
736{
737 struct vnode *vp = ap->a_vp;
738 struct vnode *tdvp = ap->a_tdvp;
739 struct componentname *cnp = ap->a_cnp;
dadab5e9 740 struct thread *td = cnp->cn_td;
984263bc
MD
741 struct inode *ip;
742 struct direct newdir;
743 int error;
744
984263bc
MD
745 if (tdvp->v_mount != vp->v_mount) {
746 error = EXDEV;
747 goto out2;
748 }
5fd012e0 749 if (tdvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE, td))) {
984263bc
MD
750 goto out2;
751 }
752 ip = VTOI(vp);
753 if ((nlink_t)ip->i_nlink >= LINK_MAX) {
754 error = EMLINK;
755 goto out1;
756 }
757 if (ip->i_flags & (IMMUTABLE | APPEND)) {
758 error = EPERM;
759 goto out1;
760 }
761 ip->i_effnlink++;
762 ip->i_nlink++;
763 ip->i_flag |= IN_CHANGE;
764 if (DOINGSOFTDEP(vp))
765 softdep_change_linkcnt(ip);
766 error = UFS_UPDATE(vp, !(DOINGSOFTDEP(vp) | DOINGASYNC(vp)));
767 if (!error) {
768 ufs_makedirentry(ip, cnp, &newdir);
769 error = ufs_direnter(tdvp, vp, &newdir, cnp, NULL);
770 }
771
772 if (error) {
773 ip->i_effnlink--;
774 ip->i_nlink--;
775 ip->i_flag |= IN_CHANGE;
776 if (DOINGSOFTDEP(vp))
777 softdep_change_linkcnt(ip);
778 }
779out1:
780 if (tdvp != vp)
5fd012e0 781 VOP_UNLOCK(vp, 0, td);
984263bc
MD
782out2:
783 VN_KNOTE(vp, NOTE_LINK);
784 VN_KNOTE(tdvp, NOTE_WRITE);
785 return (error);
786}
787
788/*
789 * whiteout vnode call
0973c589
CP
790 *
791 * ufs_whiteout(struct vnode *a_dvp, struct componentname *a_cnp, int a_flags)
984263bc 792 */
0961aa92 793static
984263bc 794int
e62afb5f 795ufs_whiteout(struct vop_old_whiteout_args *ap)
984263bc
MD
796{
797 struct vnode *dvp = ap->a_dvp;
798 struct componentname *cnp = ap->a_cnp;
799 struct direct newdir;
800 int error = 0;
801
802 switch (ap->a_flags) {
2b69e610 803 case NAMEI_LOOKUP:
984263bc
MD
804 /* 4.4 format directories support whiteout operations */
805 if (dvp->v_mount->mnt_maxsymlinklen > 0)
806 return (0);
807 return (EOPNOTSUPP);
808
2b69e610 809 case NAMEI_CREATE:
984263bc
MD
810 /* create a new directory whiteout */
811#ifdef DIAGNOSTIC
984263bc
MD
812 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
813 panic("ufs_whiteout: old format filesystem");
814#endif
815
816 newdir.d_ino = WINO;
817 newdir.d_namlen = cnp->cn_namelen;
818 bcopy(cnp->cn_nameptr, newdir.d_name, (unsigned)cnp->cn_namelen + 1);
819 newdir.d_type = DT_WHT;
820 error = ufs_direnter(dvp, NULL, &newdir, cnp, NULL);
821 break;
822
2b69e610 823 case NAMEI_DELETE:
984263bc
MD
824 /* remove an existing directory whiteout */
825#ifdef DIAGNOSTIC
826 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
827 panic("ufs_whiteout: old format filesystem");
828#endif
829
2b69e610 830 cnp->cn_flags &= ~CNP_DOWHITEOUT;
984263bc
MD
831 error = ufs_dirremove(dvp, NULL, cnp->cn_flags, 0);
832 break;
833 default:
834 panic("ufs_whiteout: unknown op");
835 }
836 return (error);
837}
838
839/*
840 * Rename system call.
841 * rename("foo", "bar");
842 * is essentially
843 * unlink("bar");
844 * link("foo", "bar");
845 * unlink("foo");
846 * but ``atomically''. Can't do full commit without saving state in the
847 * inode on disk which isn't feasible at this time. Best we can do is
848 * always guarantee the target exists.
849 *
850 * Basic algorithm is:
851 *
852 * 1) Bump link count on source while we're linking it to the
853 * target. This also ensure the inode won't be deleted out
854 * from underneath us while we work (it may be truncated by
855 * a concurrent `trunc' or `open' for creation).
856 * 2) Link source to destination. If destination already exists,
857 * delete it first.
858 * 3) Unlink source reference to inode if still around. If a
859 * directory was moved and the parent of the destination
860 * is different from the source, patch the ".." entry in the
861 * directory.
0973c589
CP
862 *
863 * ufs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
864 * struct componentname *a_fcnp, struct vnode *a_tdvp,
865 * struct vnode *a_tvp, struct componentname *a_tcnp)
984263bc 866 */
0961aa92 867static
984263bc 868int
e62afb5f 869ufs_rename(struct vop_old_rename_args *ap)
984263bc
MD
870{
871 struct vnode *tvp = ap->a_tvp;
3ff2135f 872 struct vnode *tdvp = ap->a_tdvp;
984263bc
MD
873 struct vnode *fvp = ap->a_fvp;
874 struct vnode *fdvp = ap->a_fdvp;
875 struct componentname *tcnp = ap->a_tcnp;
876 struct componentname *fcnp = ap->a_fcnp;
dadab5e9 877 struct thread *td = fcnp->cn_td;
984263bc
MD
878 struct inode *ip, *xp, *dp;
879 struct direct newdir;
9ab06300
MD
880 ino_t oldparent = 0, newparent = 0;
881 int doingdirectory = 0;
984263bc
MD
882 int error = 0, ioflag;
883
984263bc
MD
884 /*
885 * Check for cross-device rename.
886 */
887 if ((fvp->v_mount != tdvp->v_mount) ||
888 (tvp && (fvp->v_mount != tvp->v_mount))) {
889 error = EXDEV;
890abortit:
891 if (tdvp == tvp)
892 vrele(tdvp);
893 else
894 vput(tdvp);
895 if (tvp)
896 vput(tvp);
897 vrele(fdvp);
898 vrele(fvp);
899 return (error);
900 }
901
902 if (tvp && ((VTOI(tvp)->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
903 (VTOI(tdvp)->i_flags & APPEND))) {
904 error = EPERM;
905 goto abortit;
906 }
907
908 /*
909 * Renaming a file to itself has no effect. The upper layers should
910 * not call us in that case. Temporarily just warn if they do.
911 */
912 if (fvp == tvp) {
913 printf("ufs_rename: fvp == tvp (can't happen)\n");
914 error = 0;
915 goto abortit;
916 }
917
5fd012e0 918 if ((error = vn_lock(fvp, LK_EXCLUSIVE, td)) != 0)
984263bc 919 goto abortit;
fad57d0e
MD
920
921 /*
922 * Note: now that fvp is locked we have to be sure to unlock it before
923 * using the 'abortit' target.
924 */
984263bc
MD
925 dp = VTOI(fdvp);
926 ip = VTOI(fvp);
927 if (ip->i_nlink >= LINK_MAX) {
5fd012e0 928 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
929 error = EMLINK;
930 goto abortit;
931 }
932 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))
933 || (dp->i_flags & APPEND)) {
5fd012e0 934 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
935 error = EPERM;
936 goto abortit;
937 }
938 if ((ip->i_mode & IFMT) == IFDIR) {
939 /*
940 * Avoid ".", "..", and aliases of "." for obvious reasons.
941 */
942 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
2b69e610 943 dp == ip || (fcnp->cn_flags | tcnp->cn_flags) & CNP_ISDOTDOT ||
984263bc 944 (ip->i_flag & IN_RENAME)) {
5fd012e0 945 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
946 error = EINVAL;
947 goto abortit;
948 }
949 ip->i_flag |= IN_RENAME;
950 oldparent = dp->i_number;
951 doingdirectory = 1;
952 }
953 VN_KNOTE(fdvp, NOTE_WRITE); /* XXX right place? */
984263bc
MD
954
955 /*
fad57d0e
MD
956 * fvp still locked. ip->i_flag has IN_RENAME set if doingdirectory.
957 * Cleanup fvp requirements so we can unlock it.
958 *
959 * tvp and tdvp are locked. tvp may be NULL. Now that dp and xp
960 * is setup we can use the 'bad' target if we unlock fvp. We cannot
961 * use the abortit target anymore because of IN_RENAME.
984263bc
MD
962 */
963 dp = VTOI(tdvp);
984263bc
MD
964 if (tvp)
965 xp = VTOI(tvp);
fad57d0e
MD
966 else
967 xp = NULL;
984263bc
MD
968
969 /*
970 * 1) Bump link count while we're moving stuff
971 * around. If we crash somewhere before
972 * completing our work, the link count
973 * may be wrong, but correctable.
974 */
975 ip->i_effnlink++;
976 ip->i_nlink++;
977 ip->i_flag |= IN_CHANGE;
978 if (DOINGSOFTDEP(fvp))
979 softdep_change_linkcnt(ip);
980 if ((error = UFS_UPDATE(fvp, !(DOINGSOFTDEP(fvp) |
981 DOINGASYNC(fvp)))) != 0) {
5fd012e0 982 VOP_UNLOCK(fvp, 0, td);
984263bc
MD
983 goto bad;
984 }
985
986 /*
987 * If ".." must be changed (ie the directory gets a new
988 * parent) then the source directory must not be in the
989 * directory heirarchy above the target, as this would
990 * orphan everything below the source directory. Also
991 * the user must have write permission in the source so
992 * as to be able to change "..". We must repeat the call
993 * to namei, as the parent directory is unlocked by the
994 * call to checkpath().
995 */
dadab5e9 996 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_td);
5fd012e0 997 VOP_UNLOCK(fvp, 0, td);
fad57d0e
MD
998
999 /*
1000 * We are now back to where we were in that fvp, fdvp are unlocked
1001 * and tvp, tdvp are locked. tvp may be NULL. IN_RENAME may be
1002 * set. Only the bad target or, if we clean up tvp and tdvp, the
1003 * out target, may be used.
1004 */
984263bc
MD
1005 if (oldparent != dp->i_number)
1006 newparent = dp->i_number;
1007 if (doingdirectory && newparent) {
1008 if (error) /* write access check above */
1009 goto bad;
fad57d0e
MD
1010
1011 /*
1012 * Once we start messing with tvp and tdvp we cannot use the
1013 * 'bad' target, only finish cleaning tdvp and tvp up and
1014 * use the 'out' target.
1015 *
1016 * This cleans up tvp.
1017 */
1018 if (xp != NULL) {
984263bc 1019 vput(tvp);
fad57d0e
MD
1020 xp = NULL;
1021 }
1022
1023 /*
1024 * This is a real mess. ufs_checkpath vput's the target
1025 * directory so retain an extra ref and note that tdvp will
1026 * lose its lock on return. This leaves us with one good
1027 * ref after ufs_checkpath returns.
1028 */
1029 vref(tdvp);
984263bc 1030 error = ufs_checkpath(ip, dp, tcnp->cn_cred);
fad57d0e
MD
1031 tcnp->cn_flags |= CNP_PDIRUNLOCK;
1032 if (error) {
1033 vrele(tdvp);
984263bc 1034 goto out;
fad57d0e
MD
1035 }
1036
1037 /*
1038 * relookup no longer messes with tdvp's refs. tdvp must be
1039 * unlocked on entry and will be locked on a successful
1040 * return.
1041 */
984263bc 1042 error = relookup(tdvp, &tvp, tcnp);
fad57d0e
MD
1043 if (error) {
1044 if (tcnp->cn_flags & CNP_PDIRUNLOCK)
1045 vrele(tdvp);
1046 else
1047 vput(tdvp);
984263bc 1048 goto out;
fad57d0e
MD
1049 }
1050 KKASSERT((tcnp->cn_flags & CNP_PDIRUNLOCK) == 0);
984263bc 1051 dp = VTOI(tdvp);
984263bc
MD
1052 if (tvp)
1053 xp = VTOI(tvp);
1054 }
fad57d0e
MD
1055
1056 /*
1057 * We are back to fvp, fdvp unlocked, tvp, tdvp locked. tvp may
1058 * be NULL (xp will also be NULL in that case), and IN_RENAME will
1059 * be set if doingdirectory. This means we can use the 'bad' target
1060 * again.
1061 */
1062
984263bc
MD
1063 /*
1064 * 2) If target doesn't exist, link the target
1065 * to the source and unlink the source.
1066 * Otherwise, rewrite the target directory
1067 * entry to reference the source inode and
1068 * expunge the original entry's existence.
1069 */
1070 if (xp == NULL) {
1071 if (dp->i_dev != ip->i_dev)
1072 panic("ufs_rename: EXDEV");
1073 /*
1074 * Account for ".." in new directory.
1075 * When source and destination have the same
1076 * parent we don't fool with the link count.
1077 */
1078 if (doingdirectory && newparent) {
1079 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1080 error = EMLINK;
1081 goto bad;
1082 }
1083 dp->i_effnlink++;
1084 dp->i_nlink++;
1085 dp->i_flag |= IN_CHANGE;
1086 if (DOINGSOFTDEP(tdvp))
1087 softdep_change_linkcnt(dp);
1088 error = UFS_UPDATE(tdvp, !(DOINGSOFTDEP(tdvp) |
1089 DOINGASYNC(tdvp)));
1090 if (error)
1091 goto bad;
1092 }
1093 ufs_makedirentry(ip, tcnp, &newdir);
1094 error = ufs_direnter(tdvp, NULL, &newdir, tcnp, NULL);
1095 if (error) {
1096 if (doingdirectory && newparent) {
1097 dp->i_effnlink--;
1098 dp->i_nlink--;
1099 dp->i_flag |= IN_CHANGE;
1100 if (DOINGSOFTDEP(tdvp))
1101 softdep_change_linkcnt(dp);
1102 (void)UFS_UPDATE(tdvp, 1);
1103 }
1104 goto bad;
1105 }
1106 VN_KNOTE(tdvp, NOTE_WRITE);
1107 vput(tdvp);
1108 } else {
1109 if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
1110 panic("ufs_rename: EXDEV");
1111 /*
1112 * Short circuit rename(foo, foo).
1113 */
1114 if (xp->i_number == ip->i_number)
1115 panic("ufs_rename: same file");
1116 /*
1117 * If the parent directory is "sticky", then the user must
1118 * own the parent directory, or the destination of the rename,
1119 * otherwise the destination may not be changed (except by
1120 * root). This implements append-only directories.
1121 */
1122 if ((dp->i_mode & S_ISTXT) && tcnp->cn_cred->cr_uid != 0 &&
1123 tcnp->cn_cred->cr_uid != dp->i_uid &&
1124 xp->i_uid != tcnp->cn_cred->cr_uid) {
1125 error = EPERM;
1126 goto bad;
1127 }
1128 /*
1129 * Target must be empty if a directory and have no links
1130 * to it. Also, ensure source and target are compatible
1131 * (both directories, or both not directories).
8e005a45
MD
1132 *
1133 * Purge the file or directory being replaced from the
1134 * nameccache.
984263bc
MD
1135 */
1136 if ((xp->i_mode&IFMT) == IFDIR) {
1137 if ((xp->i_effnlink > 2) ||
1138 !ufs_dirempty(xp, dp->i_number, tcnp->cn_cred)) {
1139 error = ENOTEMPTY;
1140 goto bad;
1141 }
1142 if (!doingdirectory) {
1143 error = ENOTDIR;
1144 goto bad;
1145 }
fad57d0e 1146 /* cache_purge removed - handled by VFS compat layer */
8e005a45 1147 } else if (doingdirectory == 0) {
fad57d0e 1148 /* cache_purge removed - handled by VFS compat layer */
8e005a45 1149 } else {
984263bc
MD
1150 error = EISDIR;
1151 goto bad;
1152 }
9ab06300
MD
1153 /*
1154 * note: inode passed to ufs_dirrewrite() is 0 for a
1155 * non-directory file rename, 1 for a directory rename
1156 * in the same directory, and > 1 for an inode representing
1157 * the new directory.
1158 */
984263bc
MD
1159 error = ufs_dirrewrite(dp, xp, ip->i_number,
1160 IFTODT(ip->i_mode),
9ab06300
MD
1161 (doingdirectory && newparent) ?
1162 newparent : (ino_t)doingdirectory);
984263bc
MD
1163 if (error)
1164 goto bad;
1165 if (doingdirectory) {
1166 if (!newparent) {
1167 dp->i_effnlink--;
1168 if (DOINGSOFTDEP(tdvp))
1169 softdep_change_linkcnt(dp);
1170 }
1171 xp->i_effnlink--;
1172 if (DOINGSOFTDEP(tvp))
1173 softdep_change_linkcnt(xp);
1174 }
1175 if (doingdirectory && !DOINGSOFTDEP(tvp)) {
1176 /*
1177 * Truncate inode. The only stuff left in the directory
1178 * is "." and "..". The "." reference is inconsequential
1179 * since we are quashing it. We have removed the "."
1180 * reference and the reference in the parent directory,
1181 * but there may be other hard links. The soft
1182 * dependency code will arrange to do these operations
1183 * after the parent directory entry has been deleted on
1184 * disk, so when running with that code we avoid doing
1185 * them now.
1186 */
1187 if (!newparent) {
1188 dp->i_nlink--;
1189 dp->i_flag |= IN_CHANGE;
1190 }
1191 xp->i_nlink--;
1192 xp->i_flag |= IN_CHANGE;
1193 ioflag = DOINGASYNC(tvp) ? 0 : IO_SYNC;
1194 if ((error = UFS_TRUNCATE(tvp, (off_t)0, ioflag,
dadab5e9 1195 tcnp->cn_cred, tcnp->cn_td)) != 0)
984263bc
MD
1196 goto bad;
1197 }
1198 VN_KNOTE(tdvp, NOTE_WRITE);
1199 vput(tdvp);
1200 VN_KNOTE(tvp, NOTE_DELETE);
1201 vput(tvp);
1202 xp = NULL;
1203 }
1204
fad57d0e
MD
1205 /*
1206 * tvp and tdvp have been cleaned up. only fvp and fdvp (both
1207 * unlocked) remain. We are about to overwrite fvp but we have to
1208 * keep 'ip' intact so we cannot release the old fvp, which is still
1209 * refd and accessible via ap->a_fvp.
1210 *
1211 * This means we cannot use either 'bad' or 'out' to cleanup any
1212 * more.
1213 */
1214
984263bc
MD
1215 /*
1216 * 3) Unlink the source.
1217 */
2b69e610 1218 fcnp->cn_flags &= ~CNP_MODMASK;
fad57d0e 1219 fcnp->cn_flags |= CNP_LOCKPARENT;
984263bc 1220 error = relookup(fdvp, &fvp, fcnp);
fad57d0e 1221 if (error || fvp == NULL) {
984263bc 1222 /*
fad57d0e
MD
1223 * From name has disappeared. IN_RENAME will not be set if
1224 * we get past the panic so we don't have to clean it up.
984263bc
MD
1225 */
1226 if (doingdirectory)
1227 panic("ufs_rename: lost dir entry");
1228 vrele(ap->a_fvp);
fad57d0e
MD
1229 if (fcnp->cn_flags & CNP_PDIRUNLOCK)
1230 vrele(fdvp);
1231 else
1232 vput(fdvp);
1233 return(0);
984263bc 1234 }
fad57d0e
MD
1235 KKASSERT((fcnp->cn_flags & CNP_PDIRUNLOCK) == 0);
1236
1237 /*
1238 * fdvp and fvp are locked.
1239 */
1240 xp = VTOI(fvp);
1241 dp = VTOI(fdvp);
1242
984263bc
MD
1243 /*
1244 * Ensure that the directory entry still exists and has not
1245 * changed while the new name has been entered. If the source is
1246 * a file then the entry may have been unlinked or renamed. In
1247 * either case there is no further work to be done. If the source
1248 * is a directory then it cannot have been rmdir'ed; the IN_RENAME
1249 * flag ensures that it cannot be moved by another rename or removed
fad57d0e 1250 * by a rmdir. Cleanup IN_RENAME.
984263bc
MD
1251 */
1252 if (xp != ip) {
1253 if (doingdirectory)
1254 panic("ufs_rename: lost dir entry");
1255 } else {
1256 /*
1257 * If the source is a directory with a
1258 * new parent, the link count of the old
1259 * parent directory must be decremented
1260 * and ".." set to point to the new parent.
1261 */
1262 if (doingdirectory && newparent) {
1263 xp->i_offset = mastertemplate.dot_reclen;
1264 ufs_dirrewrite(xp, dp, newparent, DT_DIR, 0);
fad57d0e 1265 /* cache_purge removed - handled by VFS compat layer */
984263bc
MD
1266 }
1267 error = ufs_dirremove(fdvp, xp, fcnp->cn_flags, 0);
1268 xp->i_flag &= ~IN_RENAME;
1269 }
8e005a45 1270
984263bc 1271 VN_KNOTE(fvp, NOTE_RENAME);
fad57d0e
MD
1272 vput(fdvp);
1273 vput(fvp);
984263bc
MD
1274 vrele(ap->a_fvp);
1275 return (error);
1276
1277bad:
1278 if (xp)
1279 vput(ITOV(xp));
1280 vput(ITOV(dp));
1281out:
1282 if (doingdirectory)
1283 ip->i_flag &= ~IN_RENAME;
5fd012e0 1284 if (vn_lock(fvp, LK_EXCLUSIVE, td) == 0) {
984263bc
MD
1285 ip->i_effnlink--;
1286 ip->i_nlink--;
1287 ip->i_flag |= IN_CHANGE;
1288 ip->i_flag &= ~IN_RENAME;
1289 if (DOINGSOFTDEP(fvp))
1290 softdep_change_linkcnt(ip);
1291 vput(fvp);
fad57d0e 1292 } else {
984263bc 1293 vrele(fvp);
fad57d0e 1294 }
984263bc
MD
1295 return (error);
1296}
1297
1298/*
1299 * Mkdir system call
0973c589
CP
1300 *
1301 * ufs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
1302 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc 1303 */
0961aa92 1304static
984263bc 1305int
e62afb5f 1306ufs_mkdir(struct vop_old_mkdir_args *ap)
984263bc 1307{
3ff2135f
RG
1308 struct vnode *dvp = ap->a_dvp;
1309 struct vattr *vap = ap->a_vap;
1310 struct componentname *cnp = ap->a_cnp;
1311 struct inode *ip, *dp;
984263bc
MD
1312 struct vnode *tvp;
1313 struct buf *bp;
1314 struct dirtemplate dirtemplate, *dtp;
1315 struct direct newdir;
1316 int error, dmode;
1317 long blkoff;
1318
984263bc
MD
1319 dp = VTOI(dvp);
1320 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1321 error = EMLINK;
1322 goto out;
1323 }
1324 dmode = vap->va_mode & 0777;
1325 dmode |= IFDIR;
1326 /*
1327 * Must simulate part of ufs_makeinode here to acquire the inode,
1328 * but not have it entered in the parent directory. The entry is
1329 * made later after writing "." and ".." entries.
1330 */
1331 error = UFS_VALLOC(dvp, dmode, cnp->cn_cred, &tvp);
1332 if (error)
1333 goto out;
1334 ip = VTOI(tvp);
1335 ip->i_gid = dp->i_gid;
1336#ifdef SUIDDIR
1337 {
1338#ifdef QUOTA
1339 struct ucred ucred, *ucp;
1340 ucp = cnp->cn_cred;
1341#endif
1342 /*
1343 * If we are hacking owners here, (only do this where told to)
1344 * and we are not giving it TO root, (would subvert quotas)
1345 * then go ahead and give it to the other user.
1346 * The new directory also inherits the SUID bit.
1347 * If user's UID and dir UID are the same,
1348 * 'give it away' so that the SUID is still forced on.
1349 */
1350 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
1351 (dp->i_mode & ISUID) && dp->i_uid) {
1352 dmode |= ISUID;
1353 ip->i_uid = dp->i_uid;
1354#ifdef QUOTA
1355 if (dp->i_uid != cnp->cn_cred->cr_uid) {
1356 /*
1357 * Make sure the correct user gets charged
1358 * for the space.
1359 * Make a dummy credential for the victim.
1360 * XXX This seems to never be accessed out of
1361 * our context so a stack variable is ok.
1362 */
1363 ucred.cr_ref = 1;
1364 ucred.cr_uid = ip->i_uid;
1365 ucred.cr_ngroups = 1;
1366 ucred.cr_groups[0] = dp->i_gid;
1367 ucp = &ucred;
1368 }
1369#endif
1370 } else
1371 ip->i_uid = cnp->cn_cred->cr_uid;
1372#ifdef QUOTA
50e58362
MD
1373 if ((error = ufs_getinoquota(ip)) ||
1374 (error = ufs_chkiq(ip, 1, ucp, 0))) {
984263bc
MD
1375 UFS_VFREE(tvp, ip->i_number, dmode);
1376 vput(tvp);
1377 return (error);
1378 }
1379#endif
1380 }
1381#else /* !SUIDDIR */
1382 ip->i_uid = cnp->cn_cred->cr_uid;
1383#ifdef QUOTA
50e58362
MD
1384 if ((error = ufs_getinoquota(ip)) ||
1385 (error = ufs_chkiq(ip, 1, cnp->cn_cred, 0))) {
984263bc
MD
1386 UFS_VFREE(tvp, ip->i_number, dmode);
1387 vput(tvp);
1388 return (error);
1389 }
1390#endif
1391#endif /* !SUIDDIR */
1392 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
1393 ip->i_mode = dmode;
1394 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */
1395 ip->i_effnlink = 2;
1396 ip->i_nlink = 2;
1397 if (DOINGSOFTDEP(tvp))
1398 softdep_change_linkcnt(ip);
2b69e610 1399 if (cnp->cn_flags & CNP_ISWHITEOUT)
984263bc
MD
1400 ip->i_flags |= UF_OPAQUE;
1401
1402 /*
1403 * Bump link count in parent directory to reflect work done below.
1404 * Should be done before reference is created so cleanup is
1405 * possible if we crash.
1406 */
1407 dp->i_effnlink++;
1408 dp->i_nlink++;
1409 dp->i_flag |= IN_CHANGE;
1410 if (DOINGSOFTDEP(dvp))
1411 softdep_change_linkcnt(dp);
1412 error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(dvp) | DOINGASYNC(dvp)));
1413 if (error)
1414 goto bad;
1415
83a5effe
MD
1416 /*
1417 * The vnode must have a VM object in order to issue buffer cache
1418 * ops on it.
1419 */
1c843a13 1420 vinitvmio(tvp, DIRBLKSIZ);
83a5effe 1421
984263bc
MD
1422 /*
1423 * Initialize directory with "." and ".." from static template.
1424 */
83a5effe 1425 if (dvp->v_mount->mnt_maxsymlinklen > 0)
984263bc
MD
1426 dtp = &mastertemplate;
1427 else
1428 dtp = (struct dirtemplate *)&omastertemplate;
1429 dirtemplate = *dtp;
1430 dirtemplate.dot_ino = ip->i_number;
1431 dirtemplate.dotdot_ino = dp->i_number;
83a5effe
MD
1432 error = VOP_BALLOC(tvp, 0LL, DIRBLKSIZ, cnp->cn_cred, B_CLRBUF, &bp);
1433 if (error)
984263bc
MD
1434 goto bad;
1435 ip->i_size = DIRBLKSIZ;
1436 ip->i_flag |= IN_CHANGE | IN_UPDATE;
1437 vnode_pager_setsize(tvp, (u_long)ip->i_size);
1438 bcopy((caddr_t)&dirtemplate, (caddr_t)bp->b_data, sizeof dirtemplate);
1439 if (DOINGSOFTDEP(tvp)) {
1440 /*
1441 * Ensure that the entire newly allocated block is a
1442 * valid directory so that future growth within the
1443 * block does not have to ensure that the block is
1444 * written before the inode.
1445 */
1446 blkoff = DIRBLKSIZ;
1447 while (blkoff < bp->b_bcount) {
1448 ((struct direct *)
1449 (bp->b_data + blkoff))->d_reclen = DIRBLKSIZ;
1450 blkoff += DIRBLKSIZ;
1451 }
1452 }
1453 if ((error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) |
1454 DOINGASYNC(tvp)))) != 0) {
81b5c339 1455 VOP_BWRITE(bp->b_vp, bp);
984263bc
MD
1456 goto bad;
1457 }
1458 /*
1459 * Directory set up, now install its entry in the parent directory.
1460 *
1461 * If we are not doing soft dependencies, then we must write out the
1462 * buffer containing the new directory body before entering the new
1463 * name in the parent. If we are doing soft dependencies, then the
1464 * buffer containing the new directory body will be passed to and
1465 * released in the soft dependency code after the code has attached
1466 * an appropriate ordering dependency to the buffer which ensures that
1467 * the buffer is written before the new name is written in the parent.
1468 */
1469 if (DOINGASYNC(dvp))
1470 bdwrite(bp);
1471 else if (!DOINGSOFTDEP(dvp) && ((error = VOP_BWRITE(bp->b_vp, bp))))
1472 goto bad;
1473 ufs_makedirentry(ip, cnp, &newdir);
1474 error = ufs_direnter(dvp, tvp, &newdir, cnp, bp);
1475
1476bad:
1477 if (error == 0) {
1478 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
1479 *ap->a_vpp = tvp;
1480 } else {
1481 dp->i_effnlink--;
1482 dp->i_nlink--;
1483 dp->i_flag |= IN_CHANGE;
1484 if (DOINGSOFTDEP(dvp))
1485 softdep_change_linkcnt(dp);
1486 /*
1487 * No need to do an explicit VOP_TRUNCATE here, vrele will
1488 * do this for us because we set the link count to 0.
1489 */
1490 ip->i_effnlink = 0;
1491 ip->i_nlink = 0;
1492 ip->i_flag |= IN_CHANGE;
1493 if (DOINGSOFTDEP(tvp))
1494 softdep_change_linkcnt(ip);
1495 vput(tvp);
1496 }
1497out:
1498 return (error);
1499}
1500
1501/*
1502 * Rmdir system call.
0973c589
CP
1503 *
1504 * ufs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
1505 * struct componentname *a_cnp)
984263bc 1506 */
0961aa92 1507static
984263bc 1508int
e62afb5f 1509ufs_rmdir(struct vop_old_rmdir_args *ap)
984263bc
MD
1510{
1511 struct vnode *vp = ap->a_vp;
1512 struct vnode *dvp = ap->a_dvp;
1513 struct componentname *cnp = ap->a_cnp;
1514 struct inode *ip, *dp;
1515 int error, ioflag;
1516
1517 ip = VTOI(vp);
1518 dp = VTOI(dvp);
1519
1520 /*
1521 * Do not remove a directory that is in the process of being renamed.
1522 * Verify the directory is empty (and valid). Rmdir ".." will not be
1523 * valid since ".." will contain a reference to the current directory
1524 * and thus be non-empty. Do not allow the removal of mounted on
1525 * directories (this can happen when an NFS exported filesystem
1526 * tries to remove a locally mounted on directory).
1527 */
1528 error = 0;
1529 if (ip->i_flag & IN_RENAME) {
1530 error = EINVAL;
1531 goto out;
1532 }
1533 if (ip->i_effnlink != 2 ||
1534 !ufs_dirempty(ip, dp->i_number, cnp->cn_cred)) {
1535 error = ENOTEMPTY;
1536 goto out;
1537 }
1538 if ((dp->i_flags & APPEND)
1539 || (ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))) {
1540 error = EPERM;
1541 goto out;
1542 }
1543 if (vp->v_mountedhere != 0) {
1544 error = EINVAL;
1545 goto out;
1546 }
1547 /*
1548 * Delete reference to directory before purging
1549 * inode. If we crash in between, the directory
1550 * will be reattached to lost+found,
1551 */
1552 dp->i_effnlink--;
1553 ip->i_effnlink--;
1554 if (DOINGSOFTDEP(vp)) {
1555 softdep_change_linkcnt(dp);
1556 softdep_change_linkcnt(ip);
1557 }
1558 error = ufs_dirremove(dvp, ip, cnp->cn_flags, 1);
1559 if (error) {
1560 dp->i_effnlink++;
1561 ip->i_effnlink++;
1562 if (DOINGSOFTDEP(vp)) {
1563 softdep_change_linkcnt(dp);
1564 softdep_change_linkcnt(ip);
1565 }
1566 goto out;
1567 }
1568 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
984263bc
MD
1569 /*
1570 * Truncate inode. The only stuff left in the directory is "." and
1571 * "..". The "." reference is inconsequential since we are quashing
1572 * it. The soft dependency code will arrange to do these operations
1573 * after the parent directory entry has been deleted on disk, so
1574 * when running with that code we avoid doing them now.
1575 */
1576 if (!DOINGSOFTDEP(vp)) {
1577 dp->i_nlink--;
1578 dp->i_flag |= IN_CHANGE;
1579 ip->i_nlink--;
1580 ip->i_flag |= IN_CHANGE;
1581 ioflag = DOINGASYNC(vp) ? 0 : IO_SYNC;
1582 error = UFS_TRUNCATE(vp, (off_t)0, ioflag, cnp->cn_cred,
dadab5e9 1583 cnp->cn_td);
984263bc 1584 }
fad57d0e 1585 /* cache_purge removed - handled by VFS compat layer */
984263bc
MD
1586#ifdef UFS_DIRHASH
1587 /* Kill any active hash; i_effnlink == 0, so it will not come back. */
1588 if (ip->i_dirhash != NULL)
1589 ufsdirhash_free(ip);
1590#endif
1591out:
1592 VN_KNOTE(vp, NOTE_DELETE);
1593 return (error);
1594}
1595
1596/*
1597 * symlink -- make a symbolic link
0973c589
CP
1598 *
1599 * ufs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
1600 * struct componentname *a_cnp, struct vattr *a_vap,
1601 * char *a_target)
984263bc 1602 */
0961aa92 1603static
984263bc 1604int
e62afb5f 1605ufs_symlink(struct vop_old_symlink_args *ap)
984263bc 1606{
3ff2135f
RG
1607 struct vnode *vp, **vpp = ap->a_vpp;
1608 struct inode *ip;
984263bc
MD
1609 int len, error;
1610
1611 error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
83a5effe 1612 vpp, ap->a_cnp);
984263bc
MD
1613 if (error)
1614 return (error);
1615 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
1616 vp = *vpp;
1617 len = strlen(ap->a_target);
1618 if (len < vp->v_mount->mnt_maxsymlinklen) {
1619 ip = VTOI(vp);
1620 bcopy(ap->a_target, (char *)ip->i_shortlink, len);
1621 ip->i_size = len;
1622 ip->i_flag |= IN_CHANGE | IN_UPDATE;
83a5effe
MD
1623 } else {
1624 /*
1625 * Make sure we have a VM object in order to use
1626 * the buffer cache.
1627 */
1628 if (vp->v_object == NULL)
1c843a13 1629 vinitvmio(vp, 0);
984263bc 1630 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
83a5effe
MD
1631 UIO_SYSSPACE, IO_NODELOCKED,
1632 ap->a_cnp->cn_cred, NULL, NULL);
1633 }
984263bc
MD
1634 if (error)
1635 vput(vp);
1636 return (error);
1637}
1638
1639/*
1640 * Vnode op for reading directories.
1641 *
1642 * The routine below assumes that the on-disk format of a directory
1643 * is the same as that defined by <sys/dirent.h>. If the on-disk
1644 * format changes, then it will be necessary to do a conversion
1645 * from the on-disk format that read returns to the format defined
1646 * by <sys/dirent.h>.
0973c589
CP
1647 *
1648 * ufs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
1649 * int *a_eofflag, int *ncookies, u_long **a_cookies)
984263bc 1650 */
0961aa92 1651static
984263bc 1652int
0973c589 1653ufs_readdir(struct vop_readdir_args *ap)
984263bc 1654{
3ff2135f 1655 struct uio *uio = ap->a_uio;
7f8e5940 1656 struct vnode *vp = ap->a_vp;
e088dc32 1657 struct direct *edp, *dp;
e088dc32
JS
1658 struct uio auio;
1659 struct iovec aiov;
1660 caddr_t dirbuf;
82fd1984 1661 int readcnt, retval;
7f8e5940
MD
1662 int count, error;
1663 int ncookies;
e088dc32 1664 off_t startoffset = uio->uio_offset;
984263bc 1665
984263bc 1666 count = uio->uio_resid;
e088dc32
JS
1667 /*
1668 * Avoid complications for partial directory entries by adjusting
1669 * the i/o to end at a block boundary. Don't give up (like the old ufs
1670 * does) if the initial adjustment gives a negative count, since
1671 * many callers don't supply a large enough buffer. The correct
1672 * size is a little larger than DIRBLKSIZ to allow for expansion
1673 * of directory entries, but some callers just use 512.
1674 */
984263bc 1675 count -= (uio->uio_offset + count) & (DIRBLKSIZ -1);
e088dc32
JS
1676 if (count <= 0)
1677 count += DIRBLKSIZ;
1678
1679 auio = *uio;
1680 auio.uio_iov = &aiov;
1681 auio.uio_iovcnt = 1;
1682 auio.uio_resid = count;
1683 auio.uio_segflg = UIO_SYSSPACE;
1684 aiov.iov_len = count;
1685 MALLOC(dirbuf, caddr_t, count, M_TEMP, M_WAITOK);
1686 aiov.iov_base = dirbuf;
7f8e5940 1687 error = VOP_READ(vp, &auio, 0, ap->a_cred);
e088dc32
JS
1688 if (error == 0) {
1689 readcnt = count - auio.uio_resid;
1690 edp = (struct direct *)&dirbuf[readcnt];
1691 ncookies = 0;
e088dc32
JS
1692 for (dp = (struct direct *)dirbuf;
1693 !error && uio->uio_resid > 0 && dp < edp; ) {
82fd1984
JS
1694 if (dp->d_reclen <= 0) {
1695 error = EIO;
1696 break;
1697 }
e088dc32 1698#if BYTE_ORDER == LITTLE_ENDIAN
7f8e5940 1699 if (OFSFMT(vp)) {
82fd1984
JS
1700 retval = vop_write_dirent(&error, uio,
1701 dp->d_ino, dp->d_namlen, dp->d_type,
1702 dp->d_name);
e088dc32
JS
1703 } else
1704#endif
1705 {
82fd1984
JS
1706 retval = vop_write_dirent(&error, uio,
1707 dp->d_ino, dp->d_type, dp->d_namlen,
1708 dp->d_name);
e088dc32 1709 }
82fd1984
JS
1710
1711 if (retval)
e088dc32 1712 break;
82fd1984
JS
1713 /* advance dp */
1714 dp = (struct direct *)((char *)dp + dp->d_reclen);
1715 if (!error)
1716 ncookies++;
984263bc 1717 }
e088dc32
JS
1718 /* we need to correct uio_offset */
1719 uio->uio_offset = startoffset + (caddr_t)dp - dirbuf;
1720
1721 if (!error && ap->a_ncookies != NULL) {
1722 u_long *cookiep, *cookies, *ecookies;
1723 off_t off;
1724
1725 if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
1726 panic("ufs_readdir: unexpected uio from NFS server");
1727 MALLOC(cookies, u_long *, ncookies * sizeof(u_long), M_TEMP,
1728 M_WAITOK);
1729 off = startoffset;
1730 for (dp = (struct direct *)dirbuf,
1731 cookiep = cookies, ecookies = cookies + ncookies;
1732 cookiep < ecookies;
1733 dp = (struct direct *)((caddr_t) dp + dp->d_reclen)) {
1734 off += dp->d_reclen;
1735 *cookiep++ = (u_long) off;
1736 }
1737 *ap->a_ncookies = ncookies;
1738 *ap->a_cookies = cookies;
984263bc 1739 }
984263bc 1740 }
e088dc32 1741 FREE(dirbuf, M_TEMP);
984263bc 1742 if (ap->a_eofflag)
7f8e5940 1743 *ap->a_eofflag = VTOI(vp)->i_size <= uio->uio_offset;
e088dc32 1744 return (error);
984263bc
MD
1745}
1746
1747/*
1748 * Return target name of a symbolic link
0973c589
CP
1749 *
1750 * ufs_readlink(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred)
984263bc 1751 */
0961aa92 1752static
984263bc 1753int
0973c589 1754ufs_readlink(struct vop_readlink_args *ap)
984263bc 1755{
3ff2135f
RG
1756 struct vnode *vp = ap->a_vp;
1757 struct inode *ip = VTOI(vp);
984263bc
MD
1758 int isize;
1759
1760 isize = ip->i_size;
1761 if ((isize < vp->v_mount->mnt_maxsymlinklen) ||
f719c866 1762 (ip->i_din.di_blocks == 0)) { /* XXX - for old fastlink support */
984263bc
MD
1763 uiomove((char *)ip->i_shortlink, isize, ap->a_uio);
1764 return (0);
1765 }
83a5effe
MD
1766
1767 /*
1768 * Perform the equivalent of an OPEN on vp so we can issue a
1769 * VOP_READ.
1770 */
984263bc
MD
1771 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
1772}
1773
1774/*
1775 * Calculate the logical to physical mapping if not done already,
1776 * then call the device strategy routine.
1777 *
1778 * In order to be able to swap to a file, the VOP_BMAP operation may not
1779 * deadlock on memory. See ufs_bmap() for details.
0973c589 1780 *
81b5c339 1781 * ufs_strategy(struct vnode *a_vp, struct bio *a_bio)
984263bc 1782 */
0961aa92 1783static
984263bc 1784int
0973c589 1785ufs_strategy(struct vop_strategy_args *ap)
984263bc 1786{
81b5c339
MD
1787 struct bio *bio = ap->a_bio;
1788 struct bio *nbio;
1789 struct buf *bp = bio->bio_buf;
3ff2135f
RG
1790 struct vnode *vp = ap->a_vp;
1791 struct inode *ip;
984263bc
MD
1792 int error;
1793
1794 ip = VTOI(vp);
1795 if (vp->v_type == VBLK || vp->v_type == VCHR)
1796 panic("ufs_strategy: spec");
81b5c339 1797 nbio = push_bio(bio);
54078292
MD
1798 if (nbio->bio_offset == NOOFFSET) {
1799 error = VOP_BMAP(vp, bio->bio_offset, NULL, &nbio->bio_offset,
81b5c339 1800 NULL, NULL);
984263bc
MD
1801 if (error) {
1802 bp->b_error = error;
1803 bp->b_flags |= B_ERROR;
81b5c339
MD
1804 /* I/O was never started on nbio, must biodone(bio) */
1805 biodone(bio);
984263bc
MD
1806 return (error);
1807 }
54078292 1808 if (nbio->bio_offset == NOOFFSET)
984263bc
MD
1809 vfs_bio_clrbuf(bp);
1810 }
54078292 1811 if (nbio->bio_offset == NOOFFSET) {
81b5c339
MD
1812 /* I/O was never started on nbio, must biodone(bio) */
1813 biodone(bio);
984263bc
MD
1814 return (0);
1815 }
81b5c339 1816 vn_strategy(ip->i_devvp, nbio);
984263bc
MD
1817 return (0);
1818}
1819
1820/*
1821 * Print out the contents of an inode.
0973c589
CP
1822 *
1823 * ufs_print(struct vnode *a_vp)
984263bc 1824 */
0961aa92 1825static
984263bc 1826int
0973c589 1827ufs_print(struct vop_print_args *ap)
984263bc 1828{
3ff2135f
RG
1829 struct vnode *vp = ap->a_vp;
1830 struct inode *ip = VTOI(vp);
984263bc
MD
1831
1832 printf("tag VT_UFS, ino %lu, on dev %s (%d, %d)",
1833 (u_long)ip->i_number, devtoname(ip->i_dev), major(ip->i_dev),
1834 minor(ip->i_dev));
1835 if (vp->v_type == VFIFO)
1836 fifo_printinfo(vp);
3446c007 1837 lockmgr_printinfo(&vp->v_lock);
984263bc
MD
1838 printf("\n");
1839 return (0);
1840}
1841
1842/*
1843 * Read wrapper for special devices.
0973c589
CP
1844 *
1845 * ufsspec_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1846 * struct ucred *a_cred)
984263bc 1847 */
0961aa92 1848static
984263bc 1849int
0973c589 1850ufsspec_read(struct vop_read_args *ap)
984263bc
MD
1851{
1852 int error, resid;
1853 struct inode *ip;
1854 struct uio *uio;
1855
1856 uio = ap->a_uio;
1857 resid = uio->uio_resid;
0961aa92 1858 error = VOCALL(spec_vnode_vops, &ap->a_head);
984263bc
MD
1859 /*
1860 * The inode may have been revoked during the call, so it must not
1861 * be accessed blindly here or in the other wrapper functions.
1862 */
1863 ip = VTOI(ap->a_vp);
1864 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1865 ip->i_flag |= IN_ACCESS;
1866 return (error);
1867}
1868
1869/*
1870 * Write wrapper for special devices.
0973c589
CP
1871 *
1872 * ufsspec_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1873 * struct ucred *a_cred)
984263bc 1874 */
0961aa92 1875static
984263bc 1876int
0973c589 1877ufsspec_write(struct vop_write_args *ap)
984263bc
MD
1878{
1879 int error, resid;
1880 struct inode *ip;
1881 struct uio *uio;
1882
1883 uio = ap->a_uio;
1884 resid = uio->uio_resid;
0961aa92 1885 error = VOCALL(spec_vnode_vops, &ap->a_head);
984263bc
MD
1886 ip = VTOI(ap->a_vp);
1887 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1888 VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
1889 return (error);
1890}
1891
1892/*
1893 * Close wrapper for special devices.
1894 *
1895 * Update the times on the inode then do device close.
0973c589
CP
1896 *
1897 * ufsspec_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
1898 * struct thread *a_td)
984263bc 1899 */
0961aa92 1900static
984263bc 1901int
0973c589 1902ufsspec_close(struct vop_close_args *ap)
984263bc
MD
1903{
1904 struct vnode *vp = ap->a_vp;
1905
984263bc
MD
1906 if (vp->v_usecount > 1)
1907 ufs_itimes(vp);
0961aa92 1908 return (VOCALL(spec_vnode_vops, &ap->a_head));
984263bc
MD
1909}
1910
1911/*
1912 * Read wrapper for fifos.
0973c589
CP
1913 *
1914 * ufsfifo_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1915 * struct ucred *a_cred)
984263bc 1916 */
0961aa92 1917static
984263bc 1918int
0973c589 1919ufsfifo_read(struct vop_read_args *ap)
984263bc
MD
1920{
1921 int error, resid;
1922 struct inode *ip;
1923 struct uio *uio;
1924
1925 uio = ap->a_uio;
1926 resid = uio->uio_resid;
0961aa92 1927 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1928 ip = VTOI(ap->a_vp);
1929 if ((ap->a_vp->v_mount->mnt_flag & MNT_NOATIME) == 0 && ip != NULL &&
1930 (uio->uio_resid != resid || (error == 0 && resid != 0)))
1931 VTOI(ap->a_vp)->i_flag |= IN_ACCESS;
1932 return (error);
1933}
1934
1935/*
1936 * Write wrapper for fifos.
0973c589
CP
1937 *
1938 * ufsfifo_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1939 * struct ucred *a_cred)
984263bc 1940 */
0961aa92 1941static
984263bc 1942int
0973c589 1943ufsfifo_write(struct vop_write_args *ap)
984263bc
MD
1944{
1945 int error, resid;
1946 struct inode *ip;
1947 struct uio *uio;
1948
1949 uio = ap->a_uio;
1950 resid = uio->uio_resid;
0961aa92 1951 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1952 ip = VTOI(ap->a_vp);
1953 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1954 VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
1955 return (error);
1956}
1957
1958/*
1959 * Close wrapper for fifos.
1960 *
1961 * Update the times on the inode then do device close.
0973c589
CP
1962 *
1963 * ufsfifo_close(struct vnode *a_vp, int a_fflag, struct ucred *a_cred,
1964 * struct thread *a_td)
984263bc 1965 */
0961aa92 1966static
984263bc 1967int
0973c589 1968ufsfifo_close(struct vop_close_args *ap)
984263bc
MD
1969{
1970 struct vnode *vp = ap->a_vp;
1971
984263bc
MD
1972 if (vp->v_usecount > 1)
1973 ufs_itimes(vp);
0961aa92 1974 return (VOCALL(fifo_vnode_vops, &ap->a_head));
984263bc
MD
1975}
1976
1977/*
1978 * Kqfilter wrapper for fifos.
1979 *
1980 * Fall through to ufs kqfilter routines if needed
1981 */
0961aa92 1982static
984263bc 1983int
0973c589 1984ufsfifo_kqfilter(struct vop_kqfilter_args *ap)
984263bc
MD
1985{
1986 int error;
1987
0961aa92 1988 error = VOCALL(fifo_vnode_vops, &ap->a_head);
984263bc
MD
1989 if (error)
1990 error = ufs_kqfilter(ap);
1991 return (error);
1992}
1993
1994/*
1995 * Return POSIX pathconf information applicable to ufs filesystems.
0973c589
CP
1996 *
1997 * ufs_pathconf(struct vnode *a_vp, int a_name, int *a_retval)
984263bc 1998 */
0961aa92 1999static
984263bc 2000int
0973c589 2001ufs_pathconf(struct vop_pathconf_args *ap)
984263bc 2002{
984263bc
MD
2003 switch (ap->a_name) {
2004 case _PC_LINK_MAX:
2005 *ap->a_retval = LINK_MAX;
2006 return (0);
2007 case _PC_NAME_MAX:
2008 *ap->a_retval = NAME_MAX;
2009 return (0);
2010 case _PC_PATH_MAX:
2011 *ap->a_retval = PATH_MAX;
2012 return (0);
2013 case _PC_PIPE_BUF:
2014 *ap->a_retval = PIPE_BUF;
2015 return (0);
2016 case _PC_CHOWN_RESTRICTED:
2017 *ap->a_retval = 1;
2018 return (0);
2019 case _PC_NO_TRUNC:
2020 *ap->a_retval = 1;
2021 return (0);
2022 default:
2023 return (EINVAL);
2024 }
2025 /* NOTREACHED */
2026}
2027
2028/*
2029 * Advisory record locking support
0973c589
CP
2030 *
2031 * ufs_advlock(struct vnode *a_vp, caddr_t a_id, int a_op, struct flock *a_fl,
2032 * int a_flags)
984263bc 2033 */
0961aa92 2034static
984263bc 2035int
0973c589 2036ufs_advlock(struct vop_advlock_args *ap)
984263bc 2037{
3ff2135f 2038 struct inode *ip = VTOI(ap->a_vp);
984263bc
MD
2039
2040 return (lf_advlock(ap, &(ip->i_lockf), ip->i_size));
2041}
2042
2043/*
2044 * Initialize the vnode associated with a new inode, handle aliased
2045 * vnodes.
3e72e117
MD
2046 *
2047 * Make sure directories have their VM object now rather then later,
2048 * saving us from having to check on all the myrid directory VOPs
2049 * that might be executed without a VOP_OPEN being performed.
984263bc
MD
2050 */
2051int
0961aa92 2052ufs_vinit(struct mount *mntp, struct vnode **vpp)
984263bc
MD
2053{
2054 struct inode *ip;
2055 struct vnode *vp;
2056 struct timeval tv;
2057
2058 vp = *vpp;
2059 ip = VTOI(vp);
57f7b636 2060
1c843a13
MD
2061 vp->v_type = IFTOVT(ip->i_mode);
2062
2063 switch(vp->v_type) {
984263bc
MD
2064 case VCHR:
2065 case VBLK:
6ddb7618 2066 vp->v_ops = &mntp->mnt_vn_spec_ops;
984263bc
MD
2067 addaliasu(vp, ip->i_rdev);
2068 break;
2069 case VFIFO:
6ddb7618 2070 vp->v_ops = &mntp->mnt_vn_fifo_ops;
984263bc 2071 break;
3e72e117 2072 case VDIR:
1c843a13
MD
2073 case VREG:
2074 vinitvmio(vp, ip->i_size);
2075 break;
2076 case VLNK:
2077 if (ip->i_size >= vp->v_mount->mnt_maxsymlinklen)
2078 vinitvmio(vp, ip->i_size);
3e72e117 2079 break;
984263bc
MD
2080 default:
2081 break;
2082
2083 }
57f7b636 2084
984263bc
MD
2085 if (ip->i_number == ROOTINO)
2086 vp->v_flag |= VROOT;
2087 /*
2088 * Initialize modrev times
2089 */
2090 getmicrouptime(&tv);
2091 SETHIGH(ip->i_modrev, tv.tv_sec);
2092 SETLOW(ip->i_modrev, tv.tv_usec * 4294);
2093 *vpp = vp;
2094 return (0);
2095}
2096
2097/*
2098 * Allocate a new inode.
2099 */
0961aa92 2100static
984263bc 2101int
0973c589
CP
2102ufs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp,
2103 struct componentname *cnp)
984263bc 2104{
3ff2135f 2105 struct inode *ip, *pdir;
984263bc
MD
2106 struct direct newdir;
2107 struct vnode *tvp;
2108 int error;
2109
2110 pdir = VTOI(dvp);
984263bc
MD
2111 *vpp = NULL;
2112 if ((mode & IFMT) == 0)
2113 mode |= IFREG;
2114
2115 error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
2116 if (error)
2117 return (error);
2118 ip = VTOI(tvp);
2119 ip->i_gid = pdir->i_gid;
2120#ifdef SUIDDIR
2121 {
2122#ifdef QUOTA
2123 struct ucred ucred, *ucp;
2124 ucp = cnp->cn_cred;
2125#endif
2126 /*
2127 * If we are not the owner of the directory,
2128 * and we are hacking owners here, (only do this where told to)
2129 * and we are not giving it TO root, (would subvert quotas)
2130 * then go ahead and give it to the other user.
2131 * Note that this drops off the execute bits for security.
2132 */
2133 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
2134 (pdir->i_mode & ISUID) &&
2135 (pdir->i_uid != cnp->cn_cred->cr_uid) && pdir->i_uid) {
2136 ip->i_uid = pdir->i_uid;
2137 mode &= ~07111;
2138#ifdef QUOTA
2139 /*
2140 * Make sure the correct user gets charged
2141 * for the space.
2142 * Quickly knock up a dummy credential for the victim.
2143 * XXX This seems to never be accessed out of our
2144 * context so a stack variable is ok.
2145 */
2146 ucred.cr_ref = 1;
2147 ucred.cr_uid = ip->i_uid;
2148 ucred.cr_ngroups = 1;
2149 ucred.cr_groups[0] = pdir->i_gid;
2150 ucp = &ucred;
2151#endif
2152 } else
2153 ip->i_uid = cnp->cn_cred->cr_uid;
2154
2155#ifdef QUOTA
50e58362
MD
2156 if ((error = ufs_getinoquota(ip)) ||
2157 (error = ufs_chkiq(ip, 1, ucp, 0))) {
984263bc
MD
2158 UFS_VFREE(tvp, ip->i_number, mode);
2159 vput(tvp);
2160 return (error);
2161 }
2162#endif
2163 }
2164#else /* !SUIDDIR */
2165 ip->i_uid = cnp->cn_cred->cr_uid;
2166#ifdef QUOTA
50e58362
MD
2167 if ((error = ufs_getinoquota(ip)) ||
2168 (error = ufs_chkiq(ip, 1, cnp->cn_cred, 0))) {
984263bc
MD
2169 UFS_VFREE(tvp, ip->i_number, mode);
2170 vput(tvp);
2171 return (error);
2172 }
2173#endif
2174#endif /* !SUIDDIR */
2175 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
2176 ip->i_mode = mode;
2177 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
2178 ip->i_effnlink = 1;
2179 ip->i_nlink = 1;
2180 if (DOINGSOFTDEP(tvp))
2181 softdep_change_linkcnt(ip);
2182 if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
dadab5e9 2183 suser_cred(cnp->cn_cred, 0)) {
984263bc 2184 ip->i_mode &= ~ISGID;
41c20dac 2185 }
984263bc 2186
2b69e610 2187 if (cnp->cn_flags & CNP_ISWHITEOUT)
984263bc
MD
2188 ip->i_flags |= UF_OPAQUE;
2189
1c843a13
MD
2190 /*
2191 * Regular files and directories need VM objects. Softlinks do
2192 * not (not immediately anyway).
2193 */
2194 if (tvp->v_type == VREG || tvp->v_type == VDIR)
2195 vinitvmio(tvp, 0);
2196
984263bc
MD
2197 /*
2198 * Make sure inode goes to disk before directory entry.
2199 */
2200 error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) | DOINGASYNC(tvp)));
2201 if (error)
2202 goto bad;
2203 ufs_makedirentry(ip, cnp, &newdir);
2204 error = ufs_direnter(dvp, tvp, &newdir, cnp, NULL);
2205 if (error)
2206 goto bad;
2207 *vpp = tvp;
2208 return (0);
2209
2210bad:
2211 /*
2212 * Write error occurred trying to update the inode
2213 * or the directory so must deallocate the inode.
2214 */
2215 ip->i_effnlink = 0;
2216 ip->i_nlink = 0;
2217 ip->i_flag |= IN_CHANGE;
2218 if (DOINGSOFTDEP(tvp))
2219 softdep_change_linkcnt(ip);
2220 vput(tvp);
2221 return (error);
2222}
2223
2224static int
0973c589 2225ufs_missingop(struct vop_generic_args *ap)
984263bc 2226{
984263bc
MD
2227 panic("no vop function for %s in ufs child", ap->a_desc->vdesc_name);
2228 return (EOPNOTSUPP);
2229}
2230
2231static struct filterops ufsread_filtops =
2232 { 1, NULL, filt_ufsdetach, filt_ufsread };
2233static struct filterops ufswrite_filtops =
2234 { 1, NULL, filt_ufsdetach, filt_ufswrite };
2235static struct filterops ufsvnode_filtops =
2236 { 1, NULL, filt_ufsdetach, filt_ufsvnode };
2237
0973c589
CP
2238/*
2239 * ufs_kqfilter(struct vnode *a_vp, struct knote *a_kn)
2240 */
984263bc 2241static int
0973c589 2242ufs_kqfilter(struct vop_kqfilter_args *ap)
984263bc
MD
2243{
2244 struct vnode *vp = ap->a_vp;
2245 struct knote *kn = ap->a_kn;
41a01a4d 2246 lwkt_tokref ilock;
984263bc
MD
2247
2248 switch (kn->kn_filter) {
2249 case EVFILT_READ:
2250 kn->kn_fop = &ufsread_filtops;
2251 break;
2252 case EVFILT_WRITE:
2253 kn->kn_fop = &ufswrite_filtops;
2254 break;
2255 case EVFILT_VNODE:
2256 kn->kn_fop = &ufsvnode_filtops;
2257 break;
2258 default:
2259 return (1);
2260 }
2261
2262 kn->kn_hook = (caddr_t)vp;
2263
41a01a4d 2264 lwkt_gettoken(&ilock, &vp->v_pollinfo.vpi_token);
984263bc 2265 SLIST_INSERT_HEAD(&vp->v_pollinfo.vpi_selinfo.si_note, kn, kn_selnext);
41a01a4d 2266 lwkt_reltoken(&ilock);
984263bc
MD
2267
2268 return (0);
2269}
2270
2271static void
2272filt_ufsdetach(struct knote *kn)
2273{
2274 struct vnode *vp = (struct vnode *)kn->kn_hook;
41a01a4d 2275 lwkt_tokref ilock;
984263bc 2276
41a01a4d 2277 lwkt_gettoken(&ilock, &vp->v_pollinfo.vpi_token);
984263bc
MD
2278 SLIST_REMOVE(&vp->v_pollinfo.vpi_selinfo.si_note,
2279 kn, knote, kn_selnext);
41a01a4d 2280 lwkt_reltoken(&ilock);
984263bc
MD
2281}
2282
2283/*ARGSUSED*/
2284static int
2285filt_ufsread(struct knote *kn, long hint)
2286{
2287 struct vnode *vp = (struct vnode *)kn->kn_hook;
2288 struct inode *ip = VTOI(vp);
2289
2290 /*
2291 * filesystem is gone, so set the EOF flag and schedule
2292 * the knote for deletion.
2293 */
2294 if (hint == NOTE_REVOKE) {
2295 kn->kn_flags |= (EV_EOF | EV_ONESHOT);
2296 return (1);
2297 }
2298
2299 kn->kn_data = ip->i_size - kn->kn_fp->f_offset;
2300 return (kn->kn_data != 0);
2301}
2302
2303/*ARGSUSED*/
2304static int
2305filt_ufswrite(struct knote *kn, long hint)
2306{
984263bc
MD
2307 /*
2308 * filesystem is gone, so set the EOF flag and schedule
2309 * the knote for deletion.
2310 */
2311 if (hint == NOTE_REVOKE)
2312 kn->kn_flags |= (EV_EOF | EV_ONESHOT);
2313
2314 kn->kn_data = 0;
2315 return (1);
2316}
2317
2318static int
2319filt_ufsvnode(struct knote *kn, long hint)
2320{
984263bc
MD
2321 if (kn->kn_sfflags & hint)
2322 kn->kn_fflags |= hint;
2323 if (hint == NOTE_REVOKE) {
2324 kn->kn_flags |= EV_EOF;
2325 return (1);
2326 }
2327 return (kn->kn_fflags != 0);
2328}
2329
2330/* Global vfs data structures for ufs. */
2d3e977e 2331static struct vop_ops *ufs_vnode_vops;
984263bc 2332static struct vnodeopv_entry_desc ufs_vnodeop_entries[] = {
2d3e977e 2333 { &vop_default_desc, vop_defaultop },
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JS
2334 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2335 { &vop_read_desc, (vnodeopv_entry_t) ufs_missingop },
2336 { &vop_reallocblks_desc, (vnodeopv_entry_t) ufs_missingop },
2337 { &vop_write_desc, (vnodeopv_entry_t) ufs_missingop },
2338 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2339 { &vop_advlock_desc, (vnodeopv_entry_t) ufs_advlock },
2340 { &vop_bmap_desc, (vnodeopv_entry_t) ufs_bmap },
e62afb5f 2341 { &vop_old_lookup_desc, (vnodeopv_entry_t) ufs_lookup },
625ddaba 2342 { &vop_close_desc, (vnodeopv_entry_t) ufs_close },
e62afb5f 2343 { &vop_old_create_desc, (vnodeopv_entry_t) ufs_create },
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JS
2344 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2345 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2346 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
e62afb5f 2347 { &vop_old_link_desc, (vnodeopv_entry_t) ufs_link },
625ddaba 2348 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
e62afb5f
MD
2349 { &vop_old_mkdir_desc, (vnodeopv_entry_t) ufs_mkdir },
2350 { &vop_old_mknod_desc, (vnodeopv_entry_t) ufs_mknod },
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2351 { &vop_mmap_desc, (vnodeopv_entry_t) ufs_mmap },
2352 { &vop_open_desc, (vnodeopv_entry_t) ufs_open },
2353 { &vop_pathconf_desc, (vnodeopv_entry_t) ufs_pathconf },
2354 { &vop_poll_desc, (vnodeopv_entry_t) vop_stdpoll },
2355 { &vop_kqfilter_desc, (vnodeopv_entry_t) ufs_kqfilter },
2356 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2357 { &vop_readdir_desc, (vnodeopv_entry_t) ufs_readdir },
2358 { &vop_readlink_desc, (vnodeopv_entry_t) ufs_readlink },
2359 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
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MD
2360 { &vop_old_remove_desc, (vnodeopv_entry_t) ufs_remove },
2361 { &vop_old_rename_desc, (vnodeopv_entry_t) ufs_rename },
2362 { &vop_old_rmdir_desc, (vnodeopv_entry_t) ufs_rmdir },
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2363 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2364 { &vop_strategy_desc, (vnodeopv_entry_t) ufs_strategy },
e62afb5f 2365 { &vop_old_symlink_desc, (vnodeopv_entry_t) ufs_symlink },
625ddaba 2366 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
e62afb5f 2367 { &vop_old_whiteout_desc, (vnodeopv_entry_t) ufs_whiteout },
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MD
2368 { NULL, NULL }
2369};
2370static struct vnodeopv_desc ufs_vnodeop_opv_desc =
dc1be39c 2371 { &ufs_vnode_vops, ufs_vnodeop_entries, VVF_SUPPORTS_FSMID };
984263bc 2372
2d3e977e 2373static struct vop_ops *ufs_spec_vops;
984263bc 2374static struct vnodeopv_entry_desc ufs_specop_entries[] = {
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2375 { &vop_default_desc, (vnodeopv_entry_t) spec_vnoperate },
2376 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2377 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2378 { &vop_close_desc, (vnodeopv_entry_t) ufsspec_close },
2379 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2380 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2381 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
2382 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
2383 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2384 { &vop_read_desc, (vnodeopv_entry_t) ufsspec_read },
2385 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
2386 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2387 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
2388 { &vop_write_desc, (vnodeopv_entry_t) ufsspec_write },
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MD
2389 { NULL, NULL }
2390};
2391static struct vnodeopv_desc ufs_specop_opv_desc =
dc1be39c 2392 { &ufs_spec_vops, ufs_specop_entries, VVF_SUPPORTS_FSMID };
984263bc 2393
2d3e977e 2394static struct vop_ops *ufs_fifo_vops;
984263bc 2395static struct vnodeopv_entry_desc ufs_fifoop_entries[] = {
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JS
2396 { &vop_default_desc, (vnodeopv_entry_t) fifo_vnoperate },
2397 { &vop_fsync_desc, (vnodeopv_entry_t) ufs_missingop },
2398 { &vop_access_desc, (vnodeopv_entry_t) ufs_access },
2399 { &vop_close_desc, (vnodeopv_entry_t) ufsfifo_close },
2400 { &vop_getattr_desc, (vnodeopv_entry_t) ufs_getattr },
2401 { &vop_inactive_desc, (vnodeopv_entry_t) ufs_inactive },
2402 { &vop_islocked_desc, (vnodeopv_entry_t) vop_stdislocked },
2403 { &vop_kqfilter_desc, (vnodeopv_entry_t) ufsfifo_kqfilter },
2404 { &vop_lock_desc, (vnodeopv_entry_t) vop_stdlock },
2405 { &vop_print_desc, (vnodeopv_entry_t) ufs_print },
2406 { &vop_read_desc, (vnodeopv_entry_t) ufsfifo_read },
2407 { &vop_reclaim_desc, (vnodeopv_entry_t) ufs_reclaim },
2408 { &vop_setattr_desc, (vnodeopv_entry_t) ufs_setattr },
2409 { &vop_unlock_desc, (vnodeopv_entry_t) vop_stdunlock },
2410 { &vop_write_desc, (vnodeopv_entry_t) ufsfifo_write },
984263bc
MD
2411 { NULL, NULL }
2412};
2413static struct vnodeopv_desc ufs_fifoop_opv_desc =
dc1be39c 2414 { &ufs_fifo_vops, ufs_fifoop_entries, VVF_SUPPORTS_FSMID };
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MD
2415
2416VNODEOP_SET(ufs_vnodeop_opv_desc);
2417VNODEOP_SET(ufs_specop_opv_desc);
2418VNODEOP_SET(ufs_fifoop_opv_desc);
2419
0973c589
CP
2420/*
2421 * ufs_vnoperate(struct vnodeop_desc *a_desc)
2422 */
984263bc 2423int
0973c589 2424ufs_vnoperate(struct vop_generic_args *ap)
984263bc 2425{
0961aa92 2426 return (VOCALL(ufs_vnode_vops, ap));
984263bc
MD
2427}
2428
0973c589
CP
2429/*
2430 * ufs_vnoperatefifo(struct vnodeop_desc *a_desc)
2431 */
984263bc 2432int
0973c589 2433ufs_vnoperatefifo(struct vop_generic_args *ap)
984263bc 2434{
0961aa92 2435 return (VOCALL(ufs_fifo_vops, ap));
984263bc
MD
2436}
2437
0973c589
CP
2438/*
2439 * ufs_vnoperatespec(struct vnodeop_desc *a_desc)
2440 */
984263bc 2441int
0973c589 2442ufs_vnoperatespec(struct vop_generic_args *ap)
984263bc 2443{
0961aa92 2444 return (VOCALL(ufs_spec_vops, ap));
984263bc 2445}