Add kernel-layer support for chflags checks, remove (most) from the VFS layer.
[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 $
64950f31 40 * $DragonFly: src/sys/vfs/ufs/ufs_vnops.c,v 1.67 2008/09/28 05:04:22 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>
895c1f85 54#include <sys/priv.h>
dadab5e9 55#include <sys/namei.h>
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56#include <sys/mount.h>
57#include <sys/unistd.h>
58#include <sys/vnode.h>
59#include <sys/malloc.h>
60#include <sys/dirent.h>
61#include <sys/lockf.h>
62#include <sys/event.h>
63#include <sys/conf.h>
64
65#include <sys/file.h> /* XXX */
21c8b4bd 66#include <sys/jail.h>
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67
68#include <vm/vm.h>
69#include <vm/vm_extern.h>
70
1f2de5d4 71#include <vfs/fifofs/fifo.h>
984263bc 72
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MD
73#include "quota.h"
74#include "inode.h"
75#include "dir.h"
76#include "ufsmount.h"
77#include "ufs_extern.h"
ac690a1d 78#include "ffs_extern.h"
984263bc 79#ifdef UFS_DIRHASH
1f2de5d4 80#include "dirhash.h"
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81#endif
82
a6ee311a
RG
83static int ufs_access (struct vop_access_args *);
84static int ufs_advlock (struct vop_advlock_args *);
87de5057
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85static int ufs_chmod (struct vnode *, int, struct ucred *);
86static int ufs_chown (struct vnode *, uid_t, gid_t, struct ucred *);
a6ee311a 87static int ufs_close (struct vop_close_args *);
e62afb5f 88static int ufs_create (struct vop_old_create_args *);
a6ee311a 89static int ufs_getattr (struct vop_getattr_args *);
e62afb5f 90static int ufs_link (struct vop_old_link_args *);
a6ee311a 91static int ufs_makeinode (int mode, struct vnode *, struct vnode **, struct componentname *);
349433c9 92static int ufs_markatime (struct vop_markatime_args *);
a6ee311a 93static int ufs_missingop (struct vop_generic_args *ap);
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94static int ufs_mkdir (struct vop_old_mkdir_args *);
95static int ufs_mknod (struct vop_old_mknod_args *);
a6ee311a 96static int ufs_mmap (struct vop_mmap_args *);
a6ee311a
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97static int ufs_print (struct vop_print_args *);
98static int ufs_readdir (struct vop_readdir_args *);
99static int ufs_readlink (struct vop_readlink_args *);
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100static int ufs_remove (struct vop_old_remove_args *);
101static int ufs_rename (struct vop_old_rename_args *);
102static int ufs_rmdir (struct vop_old_rmdir_args *);
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103static int ufs_setattr (struct vop_setattr_args *);
104static int ufs_strategy (struct vop_strategy_args *);
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105static int ufs_symlink (struct vop_old_symlink_args *);
106static int ufs_whiteout (struct vop_old_whiteout_args *);
a6ee311a
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107static int ufsfifo_close (struct vop_close_args *);
108static int ufsfifo_kqfilter (struct vop_kqfilter_args *);
109static int ufsfifo_read (struct vop_read_args *);
110static int ufsfifo_write (struct vop_write_args *);
111static int ufsspec_close (struct vop_close_args *);
112static int ufsspec_read (struct vop_read_args *);
113static int ufsspec_write (struct vop_write_args *);
114static int filt_ufsread (struct knote *kn, long hint);
115static int filt_ufswrite (struct knote *kn, long hint);
116static int filt_ufsvnode (struct knote *kn, long hint);
117static void filt_ufsdetach (struct knote *kn);
118static int ufs_kqfilter (struct vop_kqfilter_args *ap);
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119
120union _qcvt {
121 int64_t qcvt;
122 int32_t val[2];
123};
124#define SETHIGH(q, h) { \
125 union _qcvt tmp; \
126 tmp.qcvt = (q); \
127 tmp.val[_QUAD_HIGHWORD] = (h); \
128 (q) = tmp.qcvt; \
129}
130#define SETLOW(q, l) { \
131 union _qcvt tmp; \
132 tmp.qcvt = (q); \
133 tmp.val[_QUAD_LOWWORD] = (l); \
134 (q) = tmp.qcvt; \
135}
136#define VN_KNOTE(vp, b) \
137 KNOTE(&vp->v_pollinfo.vpi_selinfo.si_note, (b))
138
e088dc32
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139#define OFSFMT(vp) ((vp)->v_mount->mnt_maxsymlinklen <= 0)
140
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141/*
142 * A virgin directory (no blushing please).
143 */
144static struct dirtemplate mastertemplate = {
145 0, 12, DT_DIR, 1, ".",
146 0, DIRBLKSIZ - 12, DT_DIR, 2, ".."
147};
148static struct odirtemplate omastertemplate = {
149 0, 12, 1, ".",
150 0, DIRBLKSIZ - 12, 2, ".."
151};
152
153void
0973c589 154ufs_itimes(struct vnode *vp)
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155{
156 struct inode *ip;
157 struct timespec ts;
158
159 ip = VTOI(vp);
160 if ((ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) == 0)
161 return;
162 if ((vp->v_type == VBLK || vp->v_type == VCHR) && !DOINGSOFTDEP(vp))
163 ip->i_flag |= IN_LAZYMOD;
164 else
165 ip->i_flag |= IN_MODIFIED;
166 if ((vp->v_mount->mnt_flag & MNT_RDONLY) == 0) {
167 vfs_timestamp(&ts);
168 if (ip->i_flag & IN_ACCESS) {
169 ip->i_atime = ts.tv_sec;
170 ip->i_atimensec = ts.tv_nsec;
171 }
172 if (ip->i_flag & IN_UPDATE) {
173 ip->i_mtime = ts.tv_sec;
174 ip->i_mtimensec = ts.tv_nsec;
175 ip->i_modrev++;
176 }
177 if (ip->i_flag & IN_CHANGE) {
178 ip->i_ctime = ts.tv_sec;
179 ip->i_ctimensec = ts.tv_nsec;
180 }
181 }
182 ip->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE);
183}
184
185/*
186 * Create a regular file
0973c589
CP
187 *
188 * ufs_create(struct vnode *a_dvp, struct vnode **a_vpp,
189 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc 190 */
0961aa92 191static
984263bc 192int
e62afb5f 193ufs_create(struct vop_old_create_args *ap)
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194{
195 int error;
196
197 error =
198 ufs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode),
199 ap->a_dvp, ap->a_vpp, ap->a_cnp);
200 if (error)
201 return (error);
202 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
203 return (0);
204}
205
206/*
207 * Mknod vnode call
0973c589
CP
208 *
209 * ufs_mknod(struct vnode *a_dvp, struct vnode **a_vpp,
210 * struct componentname *a_cnp, struct vattr *a_vap)
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211 */
212/* ARGSUSED */
0961aa92 213static
984263bc 214int
e62afb5f 215ufs_mknod(struct vop_old_mknod_args *ap)
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216{
217 struct vattr *vap = ap->a_vap;
218 struct vnode **vpp = ap->a_vpp;
219 struct inode *ip;
220 ino_t ino;
221 int error;
222
0e9b9130
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223 /*
224 * UFS cannot represent the entire major/minor range supported by
225 * the kernel.
226 */
227 if (vap->va_rmajor != VNOVAL &&
228 makeudev(vap->va_rmajor, vap->va_rminor) == NOUDEV) {
229 return(EINVAL);
230 }
231
c0515afc
MD
232 /* no special directory support */
233 if (vap->va_type == VDIR)
234 return(EINVAL);
235
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236 error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode),
237 ap->a_dvp, vpp, ap->a_cnp);
238 if (error)
239 return (error);
240 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
241 ip = VTOI(*vpp);
242 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
0e9b9130 243 if (vap->va_rmajor != VNOVAL) {
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244 /*
245 * Want to be able to use this to make badblock
246 * inodes, so don't truncate the dev number.
247 */
0e9b9130 248 ip->i_rdev = makeudev(vap->va_rmajor, vap->va_rminor);
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249 }
250 /*
251 * Remove inode, then reload it through VFS_VGET so it is
252 * checked to see if it is an alias of an existing entry in
253 * the inode cache.
254 */
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255 (*vpp)->v_type = VNON;
256 ino = ip->i_number; /* Save this before vgone() invalidates ip. */
3c37c940 257 vgone_vxlocked(*vpp);
5fd012e0 258 vput(*vpp);
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259 error = VFS_VGET(ap->a_dvp->v_mount, ino, vpp);
260 if (error) {
261 *vpp = NULL;
262 return (error);
263 }
264 return (0);
265}
266
267/*
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268 * Close called.
269 *
270 * Update the times on the inode.
0973c589 271 *
b478fdce 272 * ufs_close(struct vnode *a_vp, int a_fflag)
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273 */
274/* ARGSUSED */
0961aa92 275static
984263bc 276int
0973c589 277ufs_close(struct vop_close_args *ap)
984263bc 278{
3ff2135f 279 struct vnode *vp = ap->a_vp;
984263bc 280
3c37c940 281 if (vp->v_sysref.refcnt > 1)
984263bc 282 ufs_itimes(vp);
8ddc6004 283 return (vop_stdclose(ap));
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MD
284}
285
0973c589 286/*
b478fdce 287 * ufs_access(struct vnode *a_vp, int a_mode, struct ucred *a_cred)
0973c589 288 */
0961aa92 289static
984263bc 290int
0973c589 291ufs_access(struct vop_access_args *ap)
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292{
293 struct vnode *vp = ap->a_vp;
294 struct inode *ip = VTOI(vp);
295 struct ucred *cred = ap->a_cred;
296 mode_t mask, mode = ap->a_mode;
3ff2135f 297 gid_t *gp;
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298 int i;
299#ifdef QUOTA
300 int error;
301#endif
302
303 /*
f719c866 304 * Disallow write attempts on read-only filesystems;
984263bc 305 * unless the file is a socket, fifo, or a block or
f719c866 306 * character device resident on the filesystem.
984263bc
MD
307 */
308 if (mode & VWRITE) {
309 switch (vp->v_type) {
310 case VDIR:
311 case VLNK:
312 case VREG:
313 if (vp->v_mount->mnt_flag & MNT_RDONLY)
314 return (EROFS);
315#ifdef QUOTA
50e58362 316 if ((error = ufs_getinoquota(ip)) != 0)
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317 return (error);
318#endif
319 break;
320 default:
321 break;
322 }
323 }
324
3a907475 325#if 0 /* handled by kernel now */
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326 /* If immutable bit set, nobody gets to write it. */
327 if ((mode & VWRITE) && (ip->i_flags & IMMUTABLE))
328 return (EPERM);
3a907475 329#endif
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330
331 /* Otherwise, user id 0 always gets access. */
332 if (cred->cr_uid == 0)
333 return (0);
334
335 mask = 0;
336
337 /* Otherwise, check the owner. */
338 if (cred->cr_uid == ip->i_uid) {
339 if (mode & VEXEC)
340 mask |= S_IXUSR;
341 if (mode & VREAD)
342 mask |= S_IRUSR;
343 if (mode & VWRITE)
344 mask |= S_IWUSR;
345 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
346 }
347
348 /* Otherwise, check the groups. */
349 for (i = 0, gp = cred->cr_groups; i < cred->cr_ngroups; i++, gp++)
350 if (ip->i_gid == *gp) {
351 if (mode & VEXEC)
352 mask |= S_IXGRP;
353 if (mode & VREAD)
354 mask |= S_IRGRP;
355 if (mode & VWRITE)
356 mask |= S_IWGRP;
357 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
358 }
359
360 /* Otherwise, check everyone else. */
361 if (mode & VEXEC)
362 mask |= S_IXOTH;
363 if (mode & VREAD)
364 mask |= S_IROTH;
365 if (mode & VWRITE)
366 mask |= S_IWOTH;
367 return ((ip->i_mode & mask) == mask ? 0 : EACCES);
368}
369
0973c589 370/*
b478fdce 371 * ufs_getattr(struct vnode *a_vp, struct vattr *a_vap)
0973c589 372 */
984263bc 373/* ARGSUSED */
0961aa92 374static
984263bc 375int
0973c589 376ufs_getattr(struct vop_getattr_args *ap)
984263bc 377{
3ff2135f
RG
378 struct vnode *vp = ap->a_vp;
379 struct inode *ip = VTOI(vp);
380 struct vattr *vap = ap->a_vap;
984263bc 381
dc1be39c
MD
382 /*
383 * This may cause i_fsmid to be updated even if no change (0)
384 * is returned, but we should only write out the inode if non-zero
385 * is returned and if the mount is read-write.
386 */
387 if (cache_check_fsmid_vp(vp, &ip->i_fsmid) &&
388 (vp->v_mount->mnt_flag & MNT_RDONLY) == 0
389 ) {
390 ip->i_flag |= IN_LAZYMOD;
391 }
392
984263bc
MD
393 ufs_itimes(vp);
394 /*
395 * Copy from inode table
396 */
397 vap->va_fsid = dev2udev(ip->i_dev);
398 vap->va_fileid = ip->i_number;
399 vap->va_mode = ip->i_mode & ~IFMT;
400 vap->va_nlink = VFSTOUFS(vp->v_mount)->um_i_effnlink_valid ?
401 ip->i_effnlink : ip->i_nlink;
402 vap->va_uid = ip->i_uid;
403 vap->va_gid = ip->i_gid;
0e9b9130
MD
404 vap->va_rmajor = umajor(ip->i_rdev);
405 vap->va_rminor = uminor(ip->i_rdev);
984263bc
MD
406 vap->va_size = ip->i_din.di_size;
407 vap->va_atime.tv_sec = ip->i_atime;
408 vap->va_atime.tv_nsec = ip->i_atimensec;
409 vap->va_mtime.tv_sec = ip->i_mtime;
410 vap->va_mtime.tv_nsec = ip->i_mtimensec;
411 vap->va_ctime.tv_sec = ip->i_ctime;
412 vap->va_ctime.tv_nsec = ip->i_ctimensec;
413 vap->va_flags = ip->i_flags;
414 vap->va_gen = ip->i_gen;
415 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
416 vap->va_bytes = dbtob((u_quad_t)ip->i_blocks);
417 vap->va_type = IFTOVT(ip->i_mode);
418 vap->va_filerev = ip->i_modrev;
dc1be39c 419 vap->va_fsmid = ip->i_fsmid;
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MD
420 return (0);
421}
422
349433c9
MD
423static
424int
425ufs_markatime(struct vop_markatime_args *ap)
426{
427 struct vnode *vp = ap->a_vp;
428 struct inode *ip = VTOI(vp);
429
430 if (vp->v_mount->mnt_flag & MNT_RDONLY)
431 return (EROFS);
432 if (vp->v_mount->mnt_flag & MNT_NOATIME)
433 return (0);
434 ip->i_flag |= IN_ACCESS;
435 VN_KNOTE(vp, NOTE_ATTRIB);
436 return (0);
437}
438
984263bc
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439/*
440 * Set attribute vnode op. called from several syscalls
0973c589
CP
441 *
442 * ufs_setattr(struct vnode *a_vp, struct vattr *a_vap,
b478fdce 443 * struct ucred *a_cred)
984263bc 444 */
0961aa92 445static
984263bc 446int
0973c589 447ufs_setattr(struct vop_setattr_args *ap)
984263bc
MD
448{
449 struct vattr *vap = ap->a_vap;
450 struct vnode *vp = ap->a_vp;
451 struct inode *ip = VTOI(vp);
452 struct ucred *cred = ap->a_cred;
984263bc
MD
453 int error;
454
455 /*
456 * Check for unsettable attributes.
457 */
458 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
459 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
0e9b9130 460 (vap->va_blocksize != VNOVAL) || (vap->va_rmajor != VNOVAL) ||
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MD
461 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
462 return (EINVAL);
463 }
464 if (vap->va_flags != VNOVAL) {
465 if (vp->v_mount->mnt_flag & MNT_RDONLY)
466 return (EROFS);
467 if (cred->cr_uid != ip->i_uid &&
895c1f85 468 (error = priv_check_cred(cred, PRIV_ROOT, PRISON_ROOT)))
984263bc 469 return (error);
21c8b4bd
MD
470 /*
471 * Note that a root chflags becomes a user chflags when
472 * we are jailed, unless the jail.chflags_allowed sysctl
473 * is set.
474 */
475 if (cred->cr_uid == 0 &&
476 (!jailed(cred) || jail_chflags_allowed)) {
984263bc
MD
477 if ((ip->i_flags
478 & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND)) &&
479 securelevel > 0)
480 return (EPERM);
481 ip->i_flags = vap->va_flags;
482 } else {
483 if (ip->i_flags
484 & (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
485 (vap->va_flags & UF_SETTABLE) != vap->va_flags)
486 return (EPERM);
487 ip->i_flags &= SF_SETTABLE;
488 ip->i_flags |= (vap->va_flags & UF_SETTABLE);
489 }
490 ip->i_flag |= IN_CHANGE;
491 if (vap->va_flags & (IMMUTABLE | APPEND))
492 return (0);
493 }
494 if (ip->i_flags & (IMMUTABLE | APPEND))
495 return (EPERM);
496 /*
497 * Go through the fields and update iff not VNOVAL.
498 */
499 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
500 if (vp->v_mount->mnt_flag & MNT_RDONLY)
501 return (EROFS);
87de5057 502 if ((error = ufs_chown(vp, vap->va_uid, vap->va_gid, cred)) != 0)
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MD
503 return (error);
504 }
505 if (vap->va_size != VNOVAL) {
506 /*
f719c866 507 * Disallow write attempts on read-only filesystems;
984263bc 508 * unless the file is a socket, fifo, or a block or
f719c866 509 * character device resident on the filesystem.
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MD
510 */
511 switch (vp->v_type) {
512 case VDIR:
513 return (EISDIR);
514 case VLNK:
515 case VREG:
516 if (vp->v_mount->mnt_flag & MNT_RDONLY)
517 return (EROFS);
518 break;
519 default:
520 break;
521 }
ac690a1d 522 if ((error = ffs_truncate(vp, vap->va_size, 0, cred)) != 0)
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MD
523 return (error);
524 }
525 ip = VTOI(vp);
526 if (vap->va_atime.tv_sec != VNOVAL || vap->va_mtime.tv_sec != VNOVAL) {
527 if (vp->v_mount->mnt_flag & MNT_RDONLY)
528 return (EROFS);
529 if (cred->cr_uid != ip->i_uid &&
895c1f85 530 (error = priv_check_cred(cred, PRIV_ROOT, PRISON_ROOT)) &&
984263bc 531 ((vap->va_vaflags & VA_UTIMES_NULL) == 0 ||
87de5057 532 (error = VOP_ACCESS(vp, VWRITE, cred))))
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MD
533 return (error);
534 if (vap->va_atime.tv_sec != VNOVAL)
535 ip->i_flag |= IN_ACCESS;
536 if (vap->va_mtime.tv_sec != VNOVAL)
537 ip->i_flag |= IN_CHANGE | IN_UPDATE;
538 ufs_itimes(vp);
539 if (vap->va_atime.tv_sec != VNOVAL) {
540 ip->i_atime = vap->va_atime.tv_sec;
541 ip->i_atimensec = vap->va_atime.tv_nsec;
542 }
543 if (vap->va_mtime.tv_sec != VNOVAL) {
544 ip->i_mtime = vap->va_mtime.tv_sec;
545 ip->i_mtimensec = vap->va_mtime.tv_nsec;
546 }
ac690a1d 547 error = ffs_update(vp, 0);
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MD
548 if (error)
549 return (error);
550 }
551 error = 0;
552 if (vap->va_mode != (mode_t)VNOVAL) {
553 if (vp->v_mount->mnt_flag & MNT_RDONLY)
554 return (EROFS);
87de5057 555 error = ufs_chmod(vp, (int)vap->va_mode, cred);
984263bc
MD
556 }
557 VN_KNOTE(vp, NOTE_ATTRIB);
558 return (error);
559}
560
561/*
562 * Change the mode on a file.
563 * Inode must be locked before calling.
564 */
565static int
87de5057 566ufs_chmod(struct vnode *vp, int mode, struct ucred *cred)
984263bc 567{
3ff2135f 568 struct inode *ip = VTOI(vp);
984263bc
MD
569 int error;
570
571 if (cred->cr_uid != ip->i_uid) {
895c1f85 572 error = priv_check_cred(cred, PRIV_ROOT, PRISON_ROOT);
984263bc
MD
573 if (error)
574 return (error);
575 }
576 if (cred->cr_uid) {
577 if (vp->v_type != VDIR && (mode & S_ISTXT))
578 return (EFTYPE);
579 if (!groupmember(ip->i_gid, cred) && (mode & ISGID))
580 return (EPERM);
581 }
582 ip->i_mode &= ~ALLPERMS;
583 ip->i_mode |= (mode & ALLPERMS);
584 ip->i_flag |= IN_CHANGE;
585 return (0);
586}
587
588/*
589 * Perform chown operation on inode ip;
590 * inode must be locked prior to call.
591 */
592static int
87de5057 593ufs_chown(struct vnode *vp, uid_t uid, gid_t gid, struct ucred *cred)
984263bc 594{
3ff2135f 595 struct inode *ip = VTOI(vp);
984263bc
MD
596 uid_t ouid;
597 gid_t ogid;
598 int error = 0;
599#ifdef QUOTA
3ff2135f 600 int i;
984263bc
MD
601 long change;
602#endif
603
604 if (uid == (uid_t)VNOVAL)
605 uid = ip->i_uid;
606 if (gid == (gid_t)VNOVAL)
607 gid = ip->i_gid;
608 /*
609 * If we don't own the file, are trying to change the owner
610 * of the file, or are not a member of the target group,
611 * the caller must be superuser or the call fails.
612 */
613 if ((cred->cr_uid != ip->i_uid || uid != ip->i_uid ||
a10e3626
DR
614 (gid != ip->i_gid && !(cred->cr_gid == gid ||
615 groupmember((gid_t)gid, cred)))) &&
895c1f85 616 (error = priv_check_cred(cred, PRIV_ROOT, PRISON_ROOT)))
984263bc
MD
617 return (error);
618 ogid = ip->i_gid;
619 ouid = ip->i_uid;
620#ifdef QUOTA
50e58362 621 if ((error = ufs_getinoquota(ip)) != 0)
984263bc
MD
622 return (error);
623 if (ouid == uid) {
50e58362 624 ufs_dqrele(vp, ip->i_dquot[USRQUOTA]);
984263bc
MD
625 ip->i_dquot[USRQUOTA] = NODQUOT;
626 }
627 if (ogid == gid) {
50e58362 628 ufs_dqrele(vp, ip->i_dquot[GRPQUOTA]);
984263bc
MD
629 ip->i_dquot[GRPQUOTA] = NODQUOT;
630 }
631 change = ip->i_blocks;
50e58362
MD
632 (void) ufs_chkdq(ip, -change, cred, CHOWN);
633 (void) ufs_chkiq(ip, -1, cred, CHOWN);
984263bc 634 for (i = 0; i < MAXQUOTAS; i++) {
50e58362 635 ufs_dqrele(vp, ip->i_dquot[i]);
984263bc
MD
636 ip->i_dquot[i] = NODQUOT;
637 }
638#endif
639 ip->i_gid = gid;
640 ip->i_uid = uid;
641#ifdef QUOTA
50e58362 642 if ((error = ufs_getinoquota(ip)) == 0) {
984263bc 643 if (ouid == uid) {
50e58362 644 ufs_dqrele(vp, ip->i_dquot[USRQUOTA]);
984263bc
MD
645 ip->i_dquot[USRQUOTA] = NODQUOT;
646 }
647 if (ogid == gid) {
50e58362 648 ufs_dqrele(vp, ip->i_dquot[GRPQUOTA]);
984263bc
MD
649 ip->i_dquot[GRPQUOTA] = NODQUOT;
650 }
50e58362
MD
651 if ((error = ufs_chkdq(ip, change, cred, CHOWN)) == 0) {
652 if ((error = ufs_chkiq(ip, 1, cred, CHOWN)) == 0)
984263bc
MD
653 goto good;
654 else
50e58362 655 (void)ufs_chkdq(ip, -change, cred, CHOWN|FORCE);
984263bc
MD
656 }
657 for (i = 0; i < MAXQUOTAS; i++) {
50e58362 658 ufs_dqrele(vp, ip->i_dquot[i]);
984263bc
MD
659 ip->i_dquot[i] = NODQUOT;
660 }
661 }
662 ip->i_gid = ogid;
663 ip->i_uid = ouid;
50e58362 664 if (ufs_getinoquota(ip) == 0) {
984263bc 665 if (ouid == uid) {
50e58362 666 ufs_dqrele(vp, ip->i_dquot[USRQUOTA]);
984263bc
MD
667 ip->i_dquot[USRQUOTA] = NODQUOT;
668 }
669 if (ogid == gid) {
50e58362 670 ufs_dqrele(vp, ip->i_dquot[GRPQUOTA]);
984263bc
MD
671 ip->i_dquot[GRPQUOTA] = NODQUOT;
672 }
50e58362
MD
673 (void) ufs_chkdq(ip, change, cred, FORCE|CHOWN);
674 (void) ufs_chkiq(ip, 1, cred, FORCE|CHOWN);
675 (void) ufs_getinoquota(ip);
984263bc
MD
676 }
677 return (error);
678good:
50e58362 679 if (ufs_getinoquota(ip))
984263bc
MD
680 panic("ufs_chown: lost quota");
681#endif /* QUOTA */
682 ip->i_flag |= IN_CHANGE;
683 if (cred->cr_uid != 0 && (ouid != uid || ogid != gid))
684 ip->i_mode &= ~(ISUID | ISGID);
685 return (0);
686}
687
688/*
689 * Mmap a file
690 *
691 * NB Currently unsupported.
0973c589 692 *
b478fdce 693 * ufs_mmap(struct vnode *a_vp, int a_fflags, struct ucred *a_cred)
984263bc
MD
694 */
695/* ARGSUSED */
0961aa92 696static
984263bc 697int
0973c589 698ufs_mmap(struct vop_mmap_args *ap)
984263bc 699{
984263bc
MD
700 return (EINVAL);
701}
702
0973c589
CP
703/*
704 * ufs_remove(struct vnode *a_dvp, struct vnode *a_vp,
705 * struct componentname *a_cnp)
706 */
0961aa92 707static
984263bc 708int
e62afb5f 709ufs_remove(struct vop_old_remove_args *ap)
984263bc
MD
710{
711 struct inode *ip;
712 struct vnode *vp = ap->a_vp;
713 struct vnode *dvp = ap->a_dvp;
714 int error;
715
716 ip = VTOI(vp);
3a907475 717#if 0 /* handled by kernel now */
984263bc
MD
718 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
719 (VTOI(dvp)->i_flags & APPEND)) {
720 error = EPERM;
721 goto out;
722 }
3a907475 723#endif
984263bc
MD
724 error = ufs_dirremove(dvp, ip, ap->a_cnp->cn_flags, 0);
725 VN_KNOTE(vp, NOTE_DELETE);
726 VN_KNOTE(dvp, NOTE_WRITE);
3a907475 727#if 0
984263bc 728out:
3a907475 729#endif
984263bc
MD
730 return (error);
731}
732
733/*
734 * link vnode call
0973c589
CP
735 *
736 * ufs_link(struct vnode *a_tdvp, struct vnode *a_vp,
737 * struct componentname *a_cnp)
984263bc 738 */
0961aa92 739static
984263bc 740int
e62afb5f 741ufs_link(struct vop_old_link_args *ap)
984263bc
MD
742{
743 struct vnode *vp = ap->a_vp;
744 struct vnode *tdvp = ap->a_tdvp;
745 struct componentname *cnp = ap->a_cnp;
984263bc
MD
746 struct inode *ip;
747 struct direct newdir;
748 int error;
749
984263bc
MD
750 if (tdvp->v_mount != vp->v_mount) {
751 error = EXDEV;
752 goto out2;
753 }
ca466bae 754 if (tdvp != vp && (error = vn_lock(vp, LK_EXCLUSIVE))) {
984263bc
MD
755 goto out2;
756 }
757 ip = VTOI(vp);
758 if ((nlink_t)ip->i_nlink >= LINK_MAX) {
759 error = EMLINK;
760 goto out1;
761 }
3a907475 762#if 0 /* handled by kernel now, also DragonFly allows this */
984263bc
MD
763 if (ip->i_flags & (IMMUTABLE | APPEND)) {
764 error = EPERM;
765 goto out1;
766 }
3a907475 767#endif
984263bc
MD
768 ip->i_effnlink++;
769 ip->i_nlink++;
770 ip->i_flag |= IN_CHANGE;
771 if (DOINGSOFTDEP(vp))
772 softdep_change_linkcnt(ip);
ac690a1d 773 error = ffs_update(vp, !(DOINGSOFTDEP(vp) | DOINGASYNC(vp)));
984263bc
MD
774 if (!error) {
775 ufs_makedirentry(ip, cnp, &newdir);
776 error = ufs_direnter(tdvp, vp, &newdir, cnp, NULL);
777 }
778
779 if (error) {
780 ip->i_effnlink--;
781 ip->i_nlink--;
782 ip->i_flag |= IN_CHANGE;
783 if (DOINGSOFTDEP(vp))
784 softdep_change_linkcnt(ip);
785 }
786out1:
787 if (tdvp != vp)
a11aaa81 788 vn_unlock(vp);
984263bc
MD
789out2:
790 VN_KNOTE(vp, NOTE_LINK);
791 VN_KNOTE(tdvp, NOTE_WRITE);
792 return (error);
793}
794
795/*
796 * whiteout vnode call
0973c589
CP
797 *
798 * ufs_whiteout(struct vnode *a_dvp, struct componentname *a_cnp, int a_flags)
984263bc 799 */
0961aa92 800static
984263bc 801int
e62afb5f 802ufs_whiteout(struct vop_old_whiteout_args *ap)
984263bc
MD
803{
804 struct vnode *dvp = ap->a_dvp;
805 struct componentname *cnp = ap->a_cnp;
806 struct direct newdir;
807 int error = 0;
808
809 switch (ap->a_flags) {
2b69e610 810 case NAMEI_LOOKUP:
984263bc
MD
811 /* 4.4 format directories support whiteout operations */
812 if (dvp->v_mount->mnt_maxsymlinklen > 0)
813 return (0);
814 return (EOPNOTSUPP);
815
2b69e610 816 case NAMEI_CREATE:
984263bc
MD
817 /* create a new directory whiteout */
818#ifdef DIAGNOSTIC
984263bc
MD
819 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
820 panic("ufs_whiteout: old format filesystem");
821#endif
822
823 newdir.d_ino = WINO;
824 newdir.d_namlen = cnp->cn_namelen;
825 bcopy(cnp->cn_nameptr, newdir.d_name, (unsigned)cnp->cn_namelen + 1);
826 newdir.d_type = DT_WHT;
827 error = ufs_direnter(dvp, NULL, &newdir, cnp, NULL);
828 break;
829
2b69e610 830 case NAMEI_DELETE:
984263bc
MD
831 /* remove an existing directory whiteout */
832#ifdef DIAGNOSTIC
833 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
834 panic("ufs_whiteout: old format filesystem");
835#endif
836
2b69e610 837 cnp->cn_flags &= ~CNP_DOWHITEOUT;
984263bc
MD
838 error = ufs_dirremove(dvp, NULL, cnp->cn_flags, 0);
839 break;
840 default:
841 panic("ufs_whiteout: unknown op");
842 }
843 return (error);
844}
845
846/*
847 * Rename system call.
848 * rename("foo", "bar");
849 * is essentially
850 * unlink("bar");
851 * link("foo", "bar");
852 * unlink("foo");
853 * but ``atomically''. Can't do full commit without saving state in the
854 * inode on disk which isn't feasible at this time. Best we can do is
855 * always guarantee the target exists.
856 *
857 * Basic algorithm is:
858 *
859 * 1) Bump link count on source while we're linking it to the
860 * target. This also ensure the inode won't be deleted out
861 * from underneath us while we work (it may be truncated by
862 * a concurrent `trunc' or `open' for creation).
863 * 2) Link source to destination. If destination already exists,
864 * delete it first.
865 * 3) Unlink source reference to inode if still around. If a
866 * directory was moved and the parent of the destination
867 * is different from the source, patch the ".." entry in the
868 * directory.
0973c589
CP
869 *
870 * ufs_rename(struct vnode *a_fdvp, struct vnode *a_fvp,
871 * struct componentname *a_fcnp, struct vnode *a_tdvp,
872 * struct vnode *a_tvp, struct componentname *a_tcnp)
984263bc 873 */
0961aa92 874static
984263bc 875int
e62afb5f 876ufs_rename(struct vop_old_rename_args *ap)
984263bc
MD
877{
878 struct vnode *tvp = ap->a_tvp;
3ff2135f 879 struct vnode *tdvp = ap->a_tdvp;
984263bc
MD
880 struct vnode *fvp = ap->a_fvp;
881 struct vnode *fdvp = ap->a_fdvp;
882 struct componentname *tcnp = ap->a_tcnp;
883 struct componentname *fcnp = ap->a_fcnp;
984263bc
MD
884 struct inode *ip, *xp, *dp;
885 struct direct newdir;
9ab06300
MD
886 ino_t oldparent = 0, newparent = 0;
887 int doingdirectory = 0;
984263bc
MD
888 int error = 0, ioflag;
889
984263bc
MD
890 /*
891 * Check for cross-device rename.
892 */
893 if ((fvp->v_mount != tdvp->v_mount) ||
894 (tvp && (fvp->v_mount != tvp->v_mount))) {
895 error = EXDEV;
896abortit:
897 if (tdvp == tvp)
898 vrele(tdvp);
899 else
900 vput(tdvp);
901 if (tvp)
902 vput(tvp);
903 vrele(fdvp);
904 vrele(fvp);
905 return (error);
906 }
907
3a907475 908#if 0 /* handled by kernel now */
984263bc
MD
909 if (tvp && ((VTOI(tvp)->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
910 (VTOI(tdvp)->i_flags & APPEND))) {
911 error = EPERM;
912 goto abortit;
913 }
3a907475 914#endif
984263bc
MD
915
916 /*
917 * Renaming a file to itself has no effect. The upper layers should
918 * not call us in that case. Temporarily just warn if they do.
919 */
920 if (fvp == tvp) {
086c1d7e 921 kprintf("ufs_rename: fvp == tvp (can't happen)\n");
984263bc
MD
922 error = 0;
923 goto abortit;
924 }
925
ca466bae 926 if ((error = vn_lock(fvp, LK_EXCLUSIVE)) != 0)
984263bc 927 goto abortit;
fad57d0e
MD
928
929 /*
930 * Note: now that fvp is locked we have to be sure to unlock it before
931 * using the 'abortit' target.
932 */
984263bc
MD
933 dp = VTOI(fdvp);
934 ip = VTOI(fvp);
935 if (ip->i_nlink >= LINK_MAX) {
a11aaa81 936 vn_unlock(fvp);
984263bc
MD
937 error = EMLINK;
938 goto abortit;
939 }
3a907475 940#if 0 /* handled by kernel now */
984263bc
MD
941 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))
942 || (dp->i_flags & APPEND)) {
a11aaa81 943 vn_unlock(fvp);
984263bc
MD
944 error = EPERM;
945 goto abortit;
946 }
3a907475 947#endif
984263bc
MD
948 if ((ip->i_mode & IFMT) == IFDIR) {
949 /*
950 * Avoid ".", "..", and aliases of "." for obvious reasons.
951 */
952 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
2b69e610 953 dp == ip || (fcnp->cn_flags | tcnp->cn_flags) & CNP_ISDOTDOT ||
984263bc 954 (ip->i_flag & IN_RENAME)) {
a11aaa81 955 vn_unlock(fvp);
984263bc
MD
956 error = EINVAL;
957 goto abortit;
958 }
959 ip->i_flag |= IN_RENAME;
960 oldparent = dp->i_number;
961 doingdirectory = 1;
962 }
963 VN_KNOTE(fdvp, NOTE_WRITE); /* XXX right place? */
984263bc
MD
964
965 /*
fad57d0e
MD
966 * fvp still locked. ip->i_flag has IN_RENAME set if doingdirectory.
967 * Cleanup fvp requirements so we can unlock it.
968 *
969 * tvp and tdvp are locked. tvp may be NULL. Now that dp and xp
970 * is setup we can use the 'bad' target if we unlock fvp. We cannot
971 * use the abortit target anymore because of IN_RENAME.
984263bc
MD
972 */
973 dp = VTOI(tdvp);
984263bc
MD
974 if (tvp)
975 xp = VTOI(tvp);
fad57d0e
MD
976 else
977 xp = NULL;
984263bc
MD
978
979 /*
980 * 1) Bump link count while we're moving stuff
981 * around. If we crash somewhere before
982 * completing our work, the link count
983 * may be wrong, but correctable.
984 */
985 ip->i_effnlink++;
986 ip->i_nlink++;
987 ip->i_flag |= IN_CHANGE;
988 if (DOINGSOFTDEP(fvp))
989 softdep_change_linkcnt(ip);
ac690a1d 990 if ((error = ffs_update(fvp, !(DOINGSOFTDEP(fvp) |
984263bc 991 DOINGASYNC(fvp)))) != 0) {
a11aaa81 992 vn_unlock(fvp);
984263bc
MD
993 goto bad;
994 }
995
996 /*
997 * If ".." must be changed (ie the directory gets a new
998 * parent) then the source directory must not be in the
999 * directory heirarchy above the target, as this would
1000 * orphan everything below the source directory. Also
1001 * the user must have write permission in the source so
1002 * as to be able to change "..". We must repeat the call
1003 * to namei, as the parent directory is unlocked by the
1004 * call to checkpath().
1005 */
87de5057 1006 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred);
a11aaa81 1007 vn_unlock(fvp);
fad57d0e
MD
1008
1009 /*
1010 * We are now back to where we were in that fvp, fdvp are unlocked
1011 * and tvp, tdvp are locked. tvp may be NULL. IN_RENAME may be
1012 * set. Only the bad target or, if we clean up tvp and tdvp, the
1013 * out target, may be used.
1014 */
984263bc
MD
1015 if (oldparent != dp->i_number)
1016 newparent = dp->i_number;
1017 if (doingdirectory && newparent) {
1018 if (error) /* write access check above */
1019 goto bad;
fad57d0e
MD
1020
1021 /*
1022 * Once we start messing with tvp and tdvp we cannot use the
1023 * 'bad' target, only finish cleaning tdvp and tvp up and
1024 * use the 'out' target.
1025 *
1026 * This cleans up tvp.
1027 */
1028 if (xp != NULL) {
984263bc 1029 vput(tvp);
fad57d0e
MD
1030 xp = NULL;
1031 }
1032
1033 /*
1034 * This is a real mess. ufs_checkpath vput's the target
1035 * directory so retain an extra ref and note that tdvp will
1036 * lose its lock on return. This leaves us with one good
1037 * ref after ufs_checkpath returns.
1038 */
1039 vref(tdvp);
984263bc 1040 error = ufs_checkpath(ip, dp, tcnp->cn_cred);
fad57d0e
MD
1041 tcnp->cn_flags |= CNP_PDIRUNLOCK;
1042 if (error) {
1043 vrele(tdvp);
984263bc 1044 goto out;
fad57d0e
MD
1045 }
1046
1047 /*
1048 * relookup no longer messes with tdvp's refs. tdvp must be
1049 * unlocked on entry and will be locked on a successful
1050 * return.
1051 */
984263bc 1052 error = relookup(tdvp, &tvp, tcnp);
fad57d0e
MD
1053 if (error) {
1054 if (tcnp->cn_flags & CNP_PDIRUNLOCK)
1055 vrele(tdvp);
1056 else
1057 vput(tdvp);
984263bc 1058 goto out;
fad57d0e
MD
1059 }
1060 KKASSERT((tcnp->cn_flags & CNP_PDIRUNLOCK) == 0);
984263bc 1061 dp = VTOI(tdvp);
984263bc
MD
1062 if (tvp)
1063 xp = VTOI(tvp);
1064 }
fad57d0e
MD
1065
1066 /*
1067 * We are back to fvp, fdvp unlocked, tvp, tdvp locked. tvp may
1068 * be NULL (xp will also be NULL in that case), and IN_RENAME will
1069 * be set if doingdirectory. This means we can use the 'bad' target
1070 * again.
1071 */
1072
984263bc
MD
1073 /*
1074 * 2) If target doesn't exist, link the target
1075 * to the source and unlink the source.
1076 * Otherwise, rewrite the target directory
1077 * entry to reference the source inode and
1078 * expunge the original entry's existence.
1079 */
1080 if (xp == NULL) {
1081 if (dp->i_dev != ip->i_dev)
1082 panic("ufs_rename: EXDEV");
1083 /*
1084 * Account for ".." in new directory.
1085 * When source and destination have the same
1086 * parent we don't fool with the link count.
1087 */
1088 if (doingdirectory && newparent) {
1089 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1090 error = EMLINK;
1091 goto bad;
1092 }
1093 dp->i_effnlink++;
1094 dp->i_nlink++;
1095 dp->i_flag |= IN_CHANGE;
1096 if (DOINGSOFTDEP(tdvp))
1097 softdep_change_linkcnt(dp);
ac690a1d 1098 error = ffs_update(tdvp, !(DOINGSOFTDEP(tdvp) |
984263bc
MD
1099 DOINGASYNC(tdvp)));
1100 if (error)
1101 goto bad;
1102 }
1103 ufs_makedirentry(ip, tcnp, &newdir);
1104 error = ufs_direnter(tdvp, NULL, &newdir, tcnp, NULL);
1105 if (error) {
1106 if (doingdirectory && newparent) {
1107 dp->i_effnlink--;
1108 dp->i_nlink--;
1109 dp->i_flag |= IN_CHANGE;
1110 if (DOINGSOFTDEP(tdvp))
1111 softdep_change_linkcnt(dp);
ac690a1d 1112 (void)ffs_update(tdvp, 1);
984263bc
MD
1113 }
1114 goto bad;
1115 }
1116 VN_KNOTE(tdvp, NOTE_WRITE);
1117 vput(tdvp);
1118 } else {
1119 if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
1120 panic("ufs_rename: EXDEV");
1121 /*
1122 * Short circuit rename(foo, foo).
1123 */
1124 if (xp->i_number == ip->i_number)
1125 panic("ufs_rename: same file");
1126 /*
1127 * If the parent directory is "sticky", then the user must
1128 * own the parent directory, or the destination of the rename,
1129 * otherwise the destination may not be changed (except by
1130 * root). This implements append-only directories.
1131 */
1132 if ((dp->i_mode & S_ISTXT) && tcnp->cn_cred->cr_uid != 0 &&
1133 tcnp->cn_cred->cr_uid != dp->i_uid &&
1134 xp->i_uid != tcnp->cn_cred->cr_uid) {
1135 error = EPERM;
1136 goto bad;
1137 }
1138 /*
1139 * Target must be empty if a directory and have no links
1140 * to it. Also, ensure source and target are compatible
1141 * (both directories, or both not directories).
8e005a45
MD
1142 *
1143 * Purge the file or directory being replaced from the
1144 * nameccache.
984263bc
MD
1145 */
1146 if ((xp->i_mode&IFMT) == IFDIR) {
1147 if ((xp->i_effnlink > 2) ||
1148 !ufs_dirempty(xp, dp->i_number, tcnp->cn_cred)) {
1149 error = ENOTEMPTY;
1150 goto bad;
1151 }
1152 if (!doingdirectory) {
1153 error = ENOTDIR;
1154 goto bad;
1155 }
fad57d0e 1156 /* cache_purge removed - handled by VFS compat layer */
8e005a45 1157 } else if (doingdirectory == 0) {
fad57d0e 1158 /* cache_purge removed - handled by VFS compat layer */
8e005a45 1159 } else {
984263bc
MD
1160 error = EISDIR;
1161 goto bad;
1162 }
9ab06300
MD
1163 /*
1164 * note: inode passed to ufs_dirrewrite() is 0 for a
1165 * non-directory file rename, 1 for a directory rename
1166 * in the same directory, and > 1 for an inode representing
1167 * the new directory.
1168 */
984263bc
MD
1169 error = ufs_dirrewrite(dp, xp, ip->i_number,
1170 IFTODT(ip->i_mode),
9ab06300
MD
1171 (doingdirectory && newparent) ?
1172 newparent : (ino_t)doingdirectory);
984263bc
MD
1173 if (error)
1174 goto bad;
1175 if (doingdirectory) {
1176 if (!newparent) {
1177 dp->i_effnlink--;
1178 if (DOINGSOFTDEP(tdvp))
1179 softdep_change_linkcnt(dp);
1180 }
1181 xp->i_effnlink--;
1182 if (DOINGSOFTDEP(tvp))
1183 softdep_change_linkcnt(xp);
1184 }
1185 if (doingdirectory && !DOINGSOFTDEP(tvp)) {
1186 /*
1187 * Truncate inode. The only stuff left in the directory
1188 * is "." and "..". The "." reference is inconsequential
1189 * since we are quashing it. We have removed the "."
1190 * reference and the reference in the parent directory,
1191 * but there may be other hard links. The soft
1192 * dependency code will arrange to do these operations
1193 * after the parent directory entry has been deleted on
1194 * disk, so when running with that code we avoid doing
1195 * them now.
1196 */
1197 if (!newparent) {
1198 dp->i_nlink--;
1199 dp->i_flag |= IN_CHANGE;
1200 }
1201 xp->i_nlink--;
1202 xp->i_flag |= IN_CHANGE;
1203 ioflag = DOINGASYNC(tvp) ? 0 : IO_SYNC;
ac690a1d 1204 error = ffs_truncate(tvp, (off_t)0, ioflag,
87de5057
MD
1205 tcnp->cn_cred);
1206 if (error)
984263bc
MD
1207 goto bad;
1208 }
1209 VN_KNOTE(tdvp, NOTE_WRITE);
1210 vput(tdvp);
1211 VN_KNOTE(tvp, NOTE_DELETE);
1212 vput(tvp);
1213 xp = NULL;
1214 }
1215
1216 /*
fad57d0e
MD
1217 * tvp and tdvp have been cleaned up. only fvp and fdvp (both
1218 * unlocked) remain. We are about to overwrite fvp but we have to
1219 * keep 'ip' intact so we cannot release the old fvp, which is still
1220 * refd and accessible via ap->a_fvp.
1221 *
1222 * This means we cannot use either 'bad' or 'out' to cleanup any
1223 * more.
1224 */
1225
1226 /*
984263bc
MD
1227 * 3) Unlink the source.
1228 */
2b69e610 1229 fcnp->cn_flags &= ~CNP_MODMASK;
fad57d0e 1230 fcnp->cn_flags |= CNP_LOCKPARENT;
984263bc 1231 error = relookup(fdvp, &fvp, fcnp);
fad57d0e 1232 if (error || fvp == NULL) {
984263bc 1233 /*
fad57d0e
MD
1234 * From name has disappeared. IN_RENAME will not be set if
1235 * we get past the panic so we don't have to clean it up.
984263bc
MD
1236 */
1237 if (doingdirectory)
1238 panic("ufs_rename: lost dir entry");
1239 vrele(ap->a_fvp);
fad57d0e
MD
1240 if (fcnp->cn_flags & CNP_PDIRUNLOCK)
1241 vrele(fdvp);
1242 else
1243 vput(fdvp);
1244 return(0);
984263bc 1245 }
fad57d0e
MD
1246 KKASSERT((fcnp->cn_flags & CNP_PDIRUNLOCK) == 0);
1247
1248 /*
1249 * fdvp and fvp are locked.
1250 */
1251 xp = VTOI(fvp);
1252 dp = VTOI(fdvp);
1253
984263bc
MD
1254 /*
1255 * Ensure that the directory entry still exists and has not
1256 * changed while the new name has been entered. If the source is
1257 * a file then the entry may have been unlinked or renamed. In
1258 * either case there is no further work to be done. If the source
1259 * is a directory then it cannot have been rmdir'ed; the IN_RENAME
1260 * flag ensures that it cannot be moved by another rename or removed
fad57d0e 1261 * by a rmdir. Cleanup IN_RENAME.
984263bc
MD
1262 */
1263 if (xp != ip) {
1264 if (doingdirectory)
1265 panic("ufs_rename: lost dir entry");
1266 } else {
1267 /*
1268 * If the source is a directory with a
1269 * new parent, the link count of the old
1270 * parent directory must be decremented
1271 * and ".." set to point to the new parent.
1272 */
1273 if (doingdirectory && newparent) {
1274 xp->i_offset = mastertemplate.dot_reclen;
1275 ufs_dirrewrite(xp, dp, newparent, DT_DIR, 0);
fad57d0e 1276 /* cache_purge removed - handled by VFS compat layer */
984263bc
MD
1277 }
1278 error = ufs_dirremove(fdvp, xp, fcnp->cn_flags, 0);
1279 xp->i_flag &= ~IN_RENAME;
1280 }
8e005a45 1281
984263bc 1282 VN_KNOTE(fvp, NOTE_RENAME);
fad57d0e
MD
1283 vput(fdvp);
1284 vput(fvp);
984263bc
MD
1285 vrele(ap->a_fvp);
1286 return (error);
1287
1288bad:
1289 if (xp)
1290 vput(ITOV(xp));
1291 vput(ITOV(dp));
1292out:
1293 if (doingdirectory)
1294 ip->i_flag &= ~IN_RENAME;
ca466bae 1295 if (vn_lock(fvp, LK_EXCLUSIVE) == 0) {
984263bc
MD
1296 ip->i_effnlink--;
1297 ip->i_nlink--;
1298 ip->i_flag |= IN_CHANGE;
1299 ip->i_flag &= ~IN_RENAME;
1300 if (DOINGSOFTDEP(fvp))
1301 softdep_change_linkcnt(ip);
1302 vput(fvp);
fad57d0e 1303 } else {
984263bc 1304 vrele(fvp);
fad57d0e 1305 }
984263bc
MD
1306 return (error);
1307}
1308
1309/*
1310 * Mkdir system call
0973c589
CP
1311 *
1312 * ufs_mkdir(struct vnode *a_dvp, struct vnode **a_vpp,
1313 * struct componentname *a_cnp, struct vattr *a_vap)
984263bc 1314 */
0961aa92 1315static
984263bc 1316int
e62afb5f 1317ufs_mkdir(struct vop_old_mkdir_args *ap)
984263bc 1318{
3ff2135f
RG
1319 struct vnode *dvp = ap->a_dvp;
1320 struct vattr *vap = ap->a_vap;
1321 struct componentname *cnp = ap->a_cnp;
1322 struct inode *ip, *dp;
984263bc
MD
1323 struct vnode *tvp;
1324 struct buf *bp;
1325 struct dirtemplate dirtemplate, *dtp;
1326 struct direct newdir;
1327 int error, dmode;
1328 long blkoff;
1329
984263bc
MD
1330 dp = VTOI(dvp);
1331 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1332 error = EMLINK;
1333 goto out;
1334 }
1335 dmode = vap->va_mode & 0777;
1336 dmode |= IFDIR;
1337 /*
1338 * Must simulate part of ufs_makeinode here to acquire the inode,
1339 * but not have it entered in the parent directory. The entry is
1340 * made later after writing "." and ".." entries.
1341 */
ac690a1d 1342 error = ffs_valloc(dvp, dmode, cnp->cn_cred, &tvp);
984263bc
MD
1343 if (error)
1344 goto out;
1345 ip = VTOI(tvp);
1346 ip->i_gid = dp->i_gid;
1347#ifdef SUIDDIR
1348 {
1349#ifdef QUOTA
1350 struct ucred ucred, *ucp;
1351 ucp = cnp->cn_cred;
1352#endif
1353 /*
1354 * If we are hacking owners here, (only do this where told to)
1355 * and we are not giving it TO root, (would subvert quotas)
1356 * then go ahead and give it to the other user.
1357 * The new directory also inherits the SUID bit.
1358 * If user's UID and dir UID are the same,
1359 * 'give it away' so that the SUID is still forced on.
1360 */
1361 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
1362 (dp->i_mode & ISUID) && dp->i_uid) {
1363 dmode |= ISUID;
1364 ip->i_uid = dp->i_uid;
1365#ifdef QUOTA
1366 if (dp->i_uid != cnp->cn_cred->cr_uid) {
1367 /*
1368 * Make sure the correct user gets charged
1369 * for the space.
1370 * Make a dummy credential for the victim.
1371 * XXX This seems to never be accessed out of
1372 * our context so a stack variable is ok.
1373 */
1374 ucred.cr_ref = 1;
1375 ucred.cr_uid = ip->i_uid;
1376 ucred.cr_ngroups = 1;
1377 ucred.cr_groups[0] = dp->i_gid;
1378 ucp = &ucred;
1379 }
1380#endif
1381 } else
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, ucp, 0))) {
ac690a1d 1386 ffs_vfree(tvp, ip->i_number, dmode);
984263bc
MD
1387 vput(tvp);
1388 return (error);
1389 }
1390#endif
1391 }
1392#else /* !SUIDDIR */
1393 ip->i_uid = cnp->cn_cred->cr_uid;
1394#ifdef QUOTA
50e58362
MD
1395 if ((error = ufs_getinoquota(ip)) ||
1396 (error = ufs_chkiq(ip, 1, cnp->cn_cred, 0))) {
ac690a1d 1397 ffs_vfree(tvp, ip->i_number, dmode);
984263bc
MD
1398 vput(tvp);
1399 return (error);
1400 }
1401#endif
1402#endif /* !SUIDDIR */
1403 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
1404 ip->i_mode = dmode;
1405 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */
1406 ip->i_effnlink = 2;
1407 ip->i_nlink = 2;
1408 if (DOINGSOFTDEP(tvp))
1409 softdep_change_linkcnt(ip);
2b69e610 1410 if (cnp->cn_flags & CNP_ISWHITEOUT)
984263bc
MD
1411 ip->i_flags |= UF_OPAQUE;
1412
1413 /*
1414 * Bump link count in parent directory to reflect work done below.
1415 * Should be done before reference is created so cleanup is
1416 * possible if we crash.
1417 */
1418 dp->i_effnlink++;
1419 dp->i_nlink++;
1420 dp->i_flag |= IN_CHANGE;
1421 if (DOINGSOFTDEP(dvp))
1422 softdep_change_linkcnt(dp);
ac690a1d 1423 error = ffs_update(tvp, !(DOINGSOFTDEP(dvp) | DOINGASYNC(dvp)));
984263bc
MD
1424 if (error)
1425 goto bad;
1426
1427 /*
83a5effe
MD
1428 * The vnode must have a VM object in order to issue buffer cache
1429 * ops on it.
1430 */
1c843a13 1431 vinitvmio(tvp, DIRBLKSIZ);
83a5effe
MD
1432
1433 /*
984263bc
MD
1434 * Initialize directory with "." and ".." from static template.
1435 */
83a5effe 1436 if (dvp->v_mount->mnt_maxsymlinklen > 0)
984263bc
MD
1437 dtp = &mastertemplate;
1438 else
1439 dtp = (struct dirtemplate *)&omastertemplate;
1440 dirtemplate = *dtp;
1441 dirtemplate.dot_ino = ip->i_number;
1442 dirtemplate.dotdot_ino = dp->i_number;
d37b14c8 1443 vnode_pager_setsize(tvp, DIRBLKSIZ);
83a5effe
MD
1444 error = VOP_BALLOC(tvp, 0LL, DIRBLKSIZ, cnp->cn_cred, B_CLRBUF, &bp);
1445 if (error)
984263bc
MD
1446 goto bad;
1447 ip->i_size = DIRBLKSIZ;
1448 ip->i_flag |= IN_CHANGE | IN_UPDATE;
984263bc
MD
1449 bcopy((caddr_t)&dirtemplate, (caddr_t)bp->b_data, sizeof dirtemplate);
1450 if (DOINGSOFTDEP(tvp)) {
1451 /*
1452 * Ensure that the entire newly allocated block is a
1453 * valid directory so that future growth within the
1454 * block does not have to ensure that the block is
1455 * written before the inode.
1456 */
1457 blkoff = DIRBLKSIZ;
1458 while (blkoff < bp->b_bcount) {
1459 ((struct direct *)
1460 (bp->b_data + blkoff))->d_reclen = DIRBLKSIZ;
1461 blkoff += DIRBLKSIZ;
1462 }
1463 }
ac690a1d 1464 if ((error = ffs_update(tvp, !(DOINGSOFTDEP(tvp) |
984263bc 1465 DOINGASYNC(tvp)))) != 0) {
62cfda27 1466 bwrite(bp);
984263bc
MD
1467 goto bad;
1468 }
1469 /*
1470 * Directory set up, now install its entry in the parent directory.
1471 *
1472 * If we are not doing soft dependencies, then we must write out the
1473 * buffer containing the new directory body before entering the new
1474 * name in the parent. If we are doing soft dependencies, then the
1475 * buffer containing the new directory body will be passed to and
1476 * released in the soft dependency code after the code has attached
1477 * an appropriate ordering dependency to the buffer which ensures that
1478 * the buffer is written before the new name is written in the parent.
1479 */
1480 if (DOINGASYNC(dvp))
1481 bdwrite(bp);
62cfda27 1482 else if (!DOINGSOFTDEP(dvp) && (error = bwrite(bp)) != 0)
984263bc
MD
1483 goto bad;
1484 ufs_makedirentry(ip, cnp, &newdir);
1485 error = ufs_direnter(dvp, tvp, &newdir, cnp, bp);
1486
1487bad:
1488 if (error == 0) {
1489 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
1490 *ap->a_vpp = tvp;
1491 } else {
1492 dp->i_effnlink--;
1493 dp->i_nlink--;
1494 dp->i_flag |= IN_CHANGE;
1495 if (DOINGSOFTDEP(dvp))
1496 softdep_change_linkcnt(dp);
1497 /*
1498 * No need to do an explicit VOP_TRUNCATE here, vrele will
1499 * do this for us because we set the link count to 0.
1500 */
1501 ip->i_effnlink = 0;
1502 ip->i_nlink = 0;
1503 ip->i_flag |= IN_CHANGE;
1504 if (DOINGSOFTDEP(tvp))
1505 softdep_change_linkcnt(ip);
1506 vput(tvp);
1507 }
1508out:
1509 return (error);
1510}
1511
1512/*
1513 * Rmdir system call.
0973c589
CP
1514 *
1515 * ufs_rmdir(struct vnode *a_dvp, struct vnode *a_vp,
1516 * struct componentname *a_cnp)
984263bc 1517 */
0961aa92 1518static
984263bc 1519int
e62afb5f 1520ufs_rmdir(struct vop_old_rmdir_args *ap)
984263bc
MD
1521{
1522 struct vnode *vp = ap->a_vp;
1523 struct vnode *dvp = ap->a_dvp;
1524 struct componentname *cnp = ap->a_cnp;
1525 struct inode *ip, *dp;
1526 int error, ioflag;
1527
1528 ip = VTOI(vp);
1529 dp = VTOI(dvp);
1530
1531 /*
1532 * Do not remove a directory that is in the process of being renamed.
1533 * Verify the directory is empty (and valid). Rmdir ".." will not be
1534 * valid since ".." will contain a reference to the current directory
1535 * and thus be non-empty. Do not allow the removal of mounted on
1536 * directories (this can happen when an NFS exported filesystem
1537 * tries to remove a locally mounted on directory).
1538 */
1539 error = 0;
1540 if (ip->i_flag & IN_RENAME) {
1541 error = EINVAL;
1542 goto out;
1543 }
1544 if (ip->i_effnlink != 2 ||
1545 !ufs_dirempty(ip, dp->i_number, cnp->cn_cred)) {
1546 error = ENOTEMPTY;
1547 goto out;
1548 }
3a907475 1549#if 0 /* handled by kernel now */
984263bc
MD
1550 if ((dp->i_flags & APPEND)
1551 || (ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))) {
1552 error = EPERM;
1553 goto out;
1554 }
3a907475 1555#endif
984263bc
MD
1556 /*
1557 * Delete reference to directory before purging
1558 * inode. If we crash in between, the directory
1559 * will be reattached to lost+found,
1560 */
1561 dp->i_effnlink--;
1562 ip->i_effnlink--;
1563 if (DOINGSOFTDEP(vp)) {
1564 softdep_change_linkcnt(dp);
1565 softdep_change_linkcnt(ip);
1566 }
1567 error = ufs_dirremove(dvp, ip, cnp->cn_flags, 1);
1568 if (error) {
1569 dp->i_effnlink++;
1570 ip->i_effnlink++;
1571 if (DOINGSOFTDEP(vp)) {
1572 softdep_change_linkcnt(dp);
1573 softdep_change_linkcnt(ip);
1574 }
1575 goto out;
1576 }
1577 VN_KNOTE(dvp, NOTE_WRITE | NOTE_LINK);
984263bc
MD
1578 /*
1579 * Truncate inode. The only stuff left in the directory is "." and
1580 * "..". The "." reference is inconsequential since we are quashing
1581 * it. The soft dependency code will arrange to do these operations
1582 * after the parent directory entry has been deleted on disk, so
1583 * when running with that code we avoid doing them now.
1584 */
1585 if (!DOINGSOFTDEP(vp)) {
1586 dp->i_nlink--;
1587 dp->i_flag |= IN_CHANGE;
1588 ip->i_nlink--;
1589 ip->i_flag |= IN_CHANGE;
1590 ioflag = DOINGASYNC(vp) ? 0 : IO_SYNC;
ac690a1d 1591 error = ffs_truncate(vp, (off_t)0, ioflag, cnp->cn_cred);
984263bc 1592 }
fad57d0e 1593 /* cache_purge removed - handled by VFS compat layer */
984263bc
MD
1594#ifdef UFS_DIRHASH
1595 /* Kill any active hash; i_effnlink == 0, so it will not come back. */
1596 if (ip->i_dirhash != NULL)
1597 ufsdirhash_free(ip);
1598#endif
1599out:
1600 VN_KNOTE(vp, NOTE_DELETE);
1601 return (error);
1602}
1603
1604/*
1605 * symlink -- make a symbolic link
0973c589
CP
1606 *
1607 * ufs_symlink(struct vnode *a_dvp, struct vnode **a_vpp,
1608 * struct componentname *a_cnp, struct vattr *a_vap,
1609 * char *a_target)
984263bc 1610 */
0961aa92 1611static
984263bc 1612int
e62afb5f 1613ufs_symlink(struct vop_old_symlink_args *ap)
984263bc 1614{
3ff2135f
RG
1615 struct vnode *vp, **vpp = ap->a_vpp;
1616 struct inode *ip;
984263bc
MD
1617 int len, error;
1618
1619 error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
83a5effe 1620 vpp, ap->a_cnp);
984263bc
MD
1621 if (error)
1622 return (error);
1623 VN_KNOTE(ap->a_dvp, NOTE_WRITE);
1624 vp = *vpp;
1625 len = strlen(ap->a_target);
1626 if (len < vp->v_mount->mnt_maxsymlinklen) {
1627 ip = VTOI(vp);
1628 bcopy(ap->a_target, (char *)ip->i_shortlink, len);
1629 ip->i_size = len;
1630 ip->i_flag |= IN_CHANGE | IN_UPDATE;
83a5effe
MD
1631 } else {
1632 /*
1633 * Make sure we have a VM object in order to use
1634 * the buffer cache.
1635 */
1636 if (vp->v_object == NULL)
1c843a13 1637 vinitvmio(vp, 0);
984263bc 1638 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
83a5effe 1639 UIO_SYSSPACE, IO_NODELOCKED,
87de5057 1640 ap->a_cnp->cn_cred, NULL);
83a5effe 1641 }
984263bc
MD
1642 if (error)
1643 vput(vp);
1644 return (error);
1645}
1646
1647/*
1648 * Vnode op for reading directories.
1649 *
0973c589 1650 * ufs_readdir(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred,
84009d92 1651 * int *a_eofflag, int *ncookies, off_t **a_cookies)
984263bc 1652 */
0961aa92 1653static
984263bc 1654int
0973c589 1655ufs_readdir(struct vop_readdir_args *ap)
984263bc 1656{
3ff2135f 1657 struct uio *uio = ap->a_uio;
7f8e5940 1658 struct vnode *vp = ap->a_vp;
fb0466c9
MD
1659 struct direct *dp;
1660 struct buf *bp;
1661 int retval;
1662 int error;
1663 int offset; /* offset into buffer cache buffer */
1664 int eoffset; /* end of buffer clipped to file EOF */
1665 int pickup; /* pickup point */
7f8e5940 1666 int ncookies;
fb0466c9 1667 int cookie_index;
84009d92 1668 off_t *cookies;
984263bc 1669
fb0466c9
MD
1670 if (uio->uio_offset < 0)
1671 return (EINVAL);
e088dc32 1672 /*
fb0466c9
MD
1673 * Guess the number of cookies needed. Make sure we compute at
1674 * least 1, and no more then a reasonable limit.
e088dc32 1675 */
fb0466c9
MD
1676 if (ap->a_ncookies) {
1677 ncookies = uio->uio_resid / 16 + 1;
1678 if (ncookies > 1024)
1679 ncookies = 1024;
84009d92 1680 cookies = kmalloc(ncookies * sizeof(off_t), M_TEMP, M_WAITOK);
fb0466c9
MD
1681 } else {
1682 ncookies = -1; /* force conditionals below */
1683 cookies = NULL;
1684 }
1685 cookie_index = 0;
1686
885ecb13
MD
1687 if ((error = vn_lock(vp, LK_EXCLUSIVE | LK_RETRY)) != 0)
1688 return (error);
1689
fb0466c9
MD
1690 /*
1691 * Past or at EOF
1692 */
1693 if (uio->uio_offset >= VTOI(vp)->i_size) {
1694 if (ap->a_eofflag)
1695 *ap->a_eofflag = 1;
1696 if (ap->a_ncookies) {
1697 *ap->a_ncookies = cookie_index;
1698 *ap->a_cookies = cookies;
1699 }
885ecb13 1700 goto done;
fb0466c9
MD
1701 }
1702
1703 /*
1704 * Loop until we run out of cookies, we run out of user buffer,
1705 * or we hit the directory EOF.
1706 *
1707 * Always start scans at the beginning of the buffer, don't trust
1708 * the offset supplied by userland.
1709 */
9ba4b517 1710 while ((error = ffs_blkatoff_ra(vp, uio->uio_offset, NULL, &bp, 2)) == 0) {
fb0466c9
MD
1711 pickup = (int)(uio->uio_offset - bp->b_loffset);
1712 offset = 0;
1713 retval = 0;
1714 if (bp->b_loffset + bp->b_bcount > VTOI(vp)->i_size)
1715 eoffset = (int)(VTOI(vp)->i_size - bp->b_loffset);
1716 else
1717 eoffset = bp->b_bcount;
1718
1719 while (offset < eoffset) {
1720 dp = (struct direct *)(bp->b_data + offset);
1721 if (dp->d_reclen <= 0 || (dp->d_reclen & 3) ||
1722 offset + dp->d_reclen > bp->b_bcount) {
82fd1984
JS
1723 error = EIO;
1724 break;
1725 }
fb0466c9
MD
1726 if (offsetof(struct direct, d_name[dp->d_namlen]) > dp->d_reclen) {
1727 error = EIO;
1728 break;
1729 }
1730 if (offset < pickup) {
1731 offset += dp->d_reclen;
1732 continue;
1733 }
e088dc32 1734#if BYTE_ORDER == LITTLE_ENDIAN
7f8e5940 1735 if (OFSFMT(vp)) {
82fd1984
JS
1736 retval = vop_write_dirent(&error, uio,
1737 dp->d_ino, dp->d_namlen, dp->d_type,
1738 dp->d_name);
e088dc32
JS
1739 } else
1740#endif
1741 {
82fd1984
JS
1742 retval = vop_write_dirent(&error, uio,
1743 dp->d_ino, dp->d_type, dp->d_namlen,
1744 dp->d_name);
e088dc32 1745 }
82fd1984 1746 if (retval)
e088dc32 1747 break;
84009d92
MD
1748 if (cookies)
1749 cookies[cookie_index] = bp->b_loffset + offset;
fb0466c9
MD
1750 ++cookie_index;
1751 offset += dp->d_reclen;
1752 if (cookie_index == ncookies)
1753 break;
1754 }
1755
1756 /*
1757 * This will align the next loop to the beginning of the
1758 * next block, and pickup will calculate to 0.
1759 */
1760 uio->uio_offset = bp->b_loffset + offset;
1761 brelse(bp);
1762
1763 if (retval || error || cookie_index == ncookies ||
1764 uio->uio_offset >= VTOI(vp)->i_size) {
1765 break;
984263bc 1766 }
984263bc 1767 }
984263bc 1768 if (ap->a_eofflag)
7f8e5940 1769 *ap->a_eofflag = VTOI(vp)->i_size <= uio->uio_offset;
fb0466c9
MD
1770
1771 /*
1772 * Report errors only if we didn't manage to read anything
1773 */
1774 if (error && cookie_index == 0) {
1775 if (cookies) {
efda3bd0 1776 kfree(cookies, M_TEMP);
fb0466c9
MD
1777 *ap->a_ncookies = 0;
1778 *ap->a_cookies = NULL;
1779 }
1780 } else {
1781 error = 0;
1782 if (cookies) {
1783 *ap->a_ncookies = cookie_index;
1784 *ap->a_cookies = cookies;
1785 }
1786 }
885ecb13
MD
1787done:
1788 vn_unlock(vp);
e088dc32 1789 return (error);
984263bc
MD
1790}
1791
1792/*
1793 * Return target name of a symbolic link
0973c589
CP
1794 *
1795 * ufs_readlink(struct vnode *a_vp, struct uio *a_uio, struct ucred *a_cred)
984263bc 1796 */
0961aa92 1797static
984263bc 1798int
0973c589 1799ufs_readlink(struct vop_readlink_args *ap)
984263bc 1800{
3ff2135f
RG
1801 struct vnode *vp = ap->a_vp;
1802 struct inode *ip = VTOI(vp);
984263bc
MD
1803 int isize;
1804
1805 isize = ip->i_size;
1806 if ((isize < vp->v_mount->mnt_maxsymlinklen) ||
f719c866 1807 (ip->i_din.di_blocks == 0)) { /* XXX - for old fastlink support */
984263bc
MD
1808 uiomove((char *)ip->i_shortlink, isize, ap->a_uio);
1809 return (0);
1810 }
83a5effe
MD
1811
1812 /*
1813 * Perform the equivalent of an OPEN on vp so we can issue a
1814 * VOP_READ.
1815 */
984263bc
MD
1816 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
1817}
1818
1819/*
1820 * Calculate the logical to physical mapping if not done already,
1821 * then call the device strategy routine.
1822 *
1823 * In order to be able to swap to a file, the VOP_BMAP operation may not
1824 * deadlock on memory. See ufs_bmap() for details.
0973c589 1825 *
81b5c339 1826 * ufs_strategy(struct vnode *a_vp, struct bio *a_bio)
984263bc 1827 */
0961aa92 1828static
984263bc 1829int
0973c589 1830ufs_strategy(struct vop_strategy_args *ap)
984263bc 1831{
81b5c339
MD
1832 struct bio *bio = ap->a_bio;
1833 struct bio *nbio;
1834 struct buf *bp = bio->bio_buf;
3ff2135f
RG
1835 struct vnode *vp = ap->a_vp;
1836 struct inode *ip;
984263bc
MD
1837 int error;
1838
1839 ip = VTOI(vp);
1840 if (vp->v_type == VBLK || vp->v_type == VCHR)
1841 panic("ufs_strategy: spec");
81b5c339 1842 nbio = push_bio(bio);
54078292 1843 if (nbio->bio_offset == NOOFFSET) {
08daea96 1844 error = VOP_BMAP(vp, bio->bio_offset, &nbio->bio_offset,
e92ca23a 1845 NULL, NULL, bp->b_cmd);
984263bc
MD
1846 if (error) {
1847 bp->b_error = error;
1848 bp->b_flags |= B_ERROR;
81b5c339
MD
1849 /* I/O was never started on nbio, must biodone(bio) */
1850 biodone(bio);
984263bc
MD
1851 return (error);
1852 }
54078292 1853 if (nbio->bio_offset == NOOFFSET)
984263bc
MD
1854 vfs_bio_clrbuf(bp);
1855 }
54078292 1856 if (nbio->bio_offset == NOOFFSET) {
1f97d073
MD
1857 /*
1858 * We hit a hole in the file. The buffer has been zero-filled
1859 * so just biodone() it.
1860 */
81b5c339 1861 biodone(bio);
1f97d073
MD
1862 } else {
1863 vn_strategy(ip->i_devvp, nbio);
984263bc 1864 }
984263bc
MD
1865 return (0);
1866}
1867
1868/*
1869 * Print out the contents of an inode.
0973c589
CP
1870 *
1871 * ufs_print(struct vnode *a_vp)
984263bc 1872 */
0961aa92 1873static
984263bc 1874int
0973c589 1875ufs_print(struct vop_print_args *ap)
984263bc 1876{
3ff2135f
RG
1877 struct vnode *vp = ap->a_vp;
1878 struct inode *ip = VTOI(vp);
984263bc 1879
086c1d7e 1880 kprintf("tag VT_UFS, ino %lu, on dev %s (%d, %d)",
984263bc
MD
1881 (u_long)ip->i_number, devtoname(ip->i_dev), major(ip->i_dev),
1882 minor(ip->i_dev));
1883 if (vp->v_type == VFIFO)
1884 fifo_printinfo(vp);
3446c007 1885 lockmgr_printinfo(&vp->v_lock);
086c1d7e 1886 kprintf("\n");
984263bc
MD
1887 return (0);
1888}
1889
1890/*
1891 * Read wrapper for special devices.
0973c589
CP
1892 *
1893 * ufsspec_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1894 * struct ucred *a_cred)
984263bc 1895 */
0961aa92 1896static
984263bc 1897int
0973c589 1898ufsspec_read(struct vop_read_args *ap)
984263bc
MD
1899{
1900 int error, resid;
1901 struct inode *ip;
1902 struct uio *uio;
1903
1904 uio = ap->a_uio;
1905 resid = uio->uio_resid;
66a1ddf5 1906 error = VOCALL(&spec_vnode_vops, &ap->a_head);
984263bc
MD
1907 /*
1908 * The inode may have been revoked during the call, so it must not
1909 * be accessed blindly here or in the other wrapper functions.
1910 */
1911 ip = VTOI(ap->a_vp);
1912 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1913 ip->i_flag |= IN_ACCESS;
1914 return (error);
1915}
1916
1917/*
1918 * Write wrapper for special devices.
0973c589
CP
1919 *
1920 * ufsspec_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1921 * struct ucred *a_cred)
984263bc 1922 */
0961aa92 1923static
984263bc 1924int
0973c589 1925ufsspec_write(struct vop_write_args *ap)
984263bc
MD
1926{
1927 int error, resid;
1928 struct inode *ip;
1929 struct uio *uio;
1930
1931 uio = ap->a_uio;
1932 resid = uio->uio_resid;
66a1ddf5 1933 error = VOCALL(&spec_vnode_vops, &ap->a_head);
984263bc
MD
1934 ip = VTOI(ap->a_vp);
1935 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
1936 VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
1937 return (error);
1938}
1939
1940/*
1941 * Close wrapper for special devices.
1942 *
1943 * Update the times on the inode then do device close.
0973c589 1944 *
b478fdce 1945 * ufsspec_close(struct vnode *a_vp, int a_fflag)
984263bc 1946 */
0961aa92 1947static
984263bc 1948int
0973c589 1949ufsspec_close(struct vop_close_args *ap)
984263bc
MD
1950{
1951 struct vnode *vp = ap->a_vp;
1952
3c37c940 1953 if (vp->v_sysref.refcnt > 1)
984263bc 1954 ufs_itimes(vp);
66a1ddf5 1955 return (VOCALL(&spec_vnode_vops, &ap->a_head));
984263bc
MD
1956}
1957
1958/*
1959 * Read wrapper for fifos.
0973c589
CP
1960 *
1961 * ufsfifo_read(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1962 * struct ucred *a_cred)
984263bc 1963 */
0961aa92 1964static
984263bc 1965int
0973c589 1966ufsfifo_read(struct vop_read_args *ap)
984263bc
MD
1967{
1968 int error, resid;
1969 struct inode *ip;
1970 struct uio *uio;
1971
1972 uio = ap->a_uio;
1973 resid = uio->uio_resid;
66a1ddf5 1974 error = VOCALL(&fifo_vnode_vops, &ap->a_head);
984263bc
MD
1975 ip = VTOI(ap->a_vp);
1976 if ((ap->a_vp->v_mount->mnt_flag & MNT_NOATIME) == 0 && ip != NULL &&
1977 (uio->uio_resid != resid || (error == 0 && resid != 0)))
1978 VTOI(ap->a_vp)->i_flag |= IN_ACCESS;
1979 return (error);
1980}
1981
1982/*
1983 * Write wrapper for fifos.
0973c589
CP
1984 *
1985 * ufsfifo_write(struct vnode *a_vp, struct uio *a_uio, int a_ioflag,
1986 * struct ucred *a_cred)
984263bc 1987 */
0961aa92 1988static
984263bc 1989int
0973c589 1990ufsfifo_write(struct vop_write_args *ap)
984263bc
MD
1991{
1992 int error, resid;
1993 struct inode *ip;
1994 struct uio *uio;
1995
1996 uio = ap->a_uio;
1997 resid = uio->uio_resid;
66a1ddf5 1998 error = VOCALL(&fifo_vnode_vops, &ap->a_head);
984263bc
MD
1999 ip = VTOI(ap->a_vp);
2000 if (ip != NULL && (uio->uio_resid != resid || (error == 0 && resid != 0)))
2001 VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
2002 return (error);
2003}
2004
2005/*
2006 * Close wrapper for fifos.
2007 *
2008 * Update the times on the inode then do device close.
0973c589 2009 *
b478fdce 2010 * ufsfifo_close(struct vnode *a_vp, int a_fflag)
984263bc 2011 */
0961aa92 2012static
984263bc 2013int
0973c589 2014ufsfifo_close(struct vop_close_args *ap)
984263bc
MD
2015{
2016 struct vnode *vp = ap->a_vp;
2017
3c37c940 2018 if (vp->v_sysref.refcnt > 1)
984263bc 2019 ufs_itimes(vp);
66a1ddf5 2020 return (VOCALL(&fifo_vnode_vops, &ap->a_head));
984263bc
MD
2021}
2022
2023/*
2024 * Kqfilter wrapper for fifos.
2025 *
2026 * Fall through to ufs kqfilter routines if needed
2027 */
0961aa92 2028static
984263bc 2029int
0973c589 2030ufsfifo_kqfilter(struct vop_kqfilter_args *ap)
984263bc
MD
2031{
2032 int error;
2033
66a1ddf5 2034 error = VOCALL(&fifo_vnode_vops, &ap->a_head);
984263bc
MD
2035 if (error)
2036 error = ufs_kqfilter(ap);
2037 return (error);
2038}
2039
2040/*
984263bc 2041 * Advisory record locking support
0973c589
CP
2042 *
2043 * ufs_advlock(struct vnode *a_vp, caddr_t a_id, int a_op, struct flock *a_fl,
2044 * int a_flags)
984263bc 2045 */
0961aa92 2046static
984263bc 2047int
0973c589 2048ufs_advlock(struct vop_advlock_args *ap)
984263bc 2049{
3ff2135f 2050 struct inode *ip = VTOI(ap->a_vp);
984263bc
MD
2051
2052 return (lf_advlock(ap, &(ip->i_lockf), ip->i_size));
2053}
2054
2055/*
2056 * Initialize the vnode associated with a new inode, handle aliased
2057 * vnodes.
3e72e117
MD
2058 *
2059 * Make sure directories have their VM object now rather then later,
2060 * saving us from having to check on all the myrid directory VOPs
2061 * that might be executed without a VOP_OPEN being performed.
984263bc
MD
2062 */
2063int
0961aa92 2064ufs_vinit(struct mount *mntp, struct vnode **vpp)
984263bc
MD
2065{
2066 struct inode *ip;
2067 struct vnode *vp;
2068 struct timeval tv;
2069
2070 vp = *vpp;
2071 ip = VTOI(vp);
57f7b636 2072
1c843a13
MD
2073 vp->v_type = IFTOVT(ip->i_mode);
2074
2075 switch(vp->v_type) {
984263bc
MD
2076 case VCHR:
2077 case VBLK:
6ddb7618 2078 vp->v_ops = &mntp->mnt_vn_spec_ops;
0e9b9130 2079 addaliasu(vp, umajor(ip->i_rdev), uminor(ip->i_rdev));
984263bc
MD
2080 break;
2081 case VFIFO:
6ddb7618 2082 vp->v_ops = &mntp->mnt_vn_fifo_ops;
984263bc 2083 break;
3e72e117 2084 case VDIR:
1c843a13
MD
2085 case VREG:
2086 vinitvmio(vp, ip->i_size);
2087 break;
2088 case VLNK:
2089 if (ip->i_size >= vp->v_mount->mnt_maxsymlinklen)
2090 vinitvmio(vp, ip->i_size);
3e72e117 2091 break;
984263bc
MD
2092 default:
2093 break;
2094
2095 }
57f7b636 2096
984263bc
MD
2097 if (ip->i_number == ROOTINO)
2098 vp->v_flag |= VROOT;
2099 /*
2100 * Initialize modrev times
2101 */
2102 getmicrouptime(&tv);
2103 SETHIGH(ip->i_modrev, tv.tv_sec);
2104 SETLOW(ip->i_modrev, tv.tv_usec * 4294);
2105 *vpp = vp;
2106 return (0);
2107}
2108
2109/*
2110 * Allocate a new inode.
2111 */
0961aa92 2112static
984263bc 2113int
0973c589
CP
2114ufs_makeinode(int mode, struct vnode *dvp, struct vnode **vpp,
2115 struct componentname *cnp)
984263bc 2116{
3ff2135f 2117 struct inode *ip, *pdir;
984263bc
MD
2118 struct direct newdir;
2119 struct vnode *tvp;
2120 int error;
2121
2122 pdir = VTOI(dvp);
984263bc
MD
2123 *vpp = NULL;
2124 if ((mode & IFMT) == 0)
2125 mode |= IFREG;
2126
ac690a1d 2127 error = ffs_valloc(dvp, mode, cnp->cn_cred, &tvp);
984263bc
MD
2128 if (error)
2129 return (error);
2130 ip = VTOI(tvp);
33036abf 2131 ip->i_flags = pdir->i_flags & (SF_NOHISTORY|UF_NOHISTORY|UF_NODUMP);
984263bc
MD
2132 ip->i_gid = pdir->i_gid;
2133#ifdef SUIDDIR
2134 {
2135#ifdef QUOTA
2136 struct ucred ucred, *ucp;
2137 ucp = cnp->cn_cred;
2138#endif
2139 /*
2140 * If we are not the owner of the directory,
2141 * and we are hacking owners here, (only do this where told to)
2142 * and we are not giving it TO root, (would subvert quotas)
2143 * then go ahead and give it to the other user.
2144 * Note that this drops off the execute bits for security.
2145 */
2146 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
2147 (pdir->i_mode & ISUID) &&
2148 (pdir->i_uid != cnp->cn_cred->cr_uid) && pdir->i_uid) {
2149 ip->i_uid = pdir->i_uid;
2150 mode &= ~07111;
2151#ifdef QUOTA
2152 /*
2153 * Make sure the correct user gets charged
2154 * for the space.
2155 * Quickly knock up a dummy credential for the victim.
2156 * XXX This seems to never be accessed out of our
2157 * context so a stack variable is ok.
2158 */
2159 ucred.cr_ref = 1;
2160 ucred.cr_uid = ip->i_uid;
2161 ucred.cr_ngroups = 1;
2162 ucred.cr_groups[0] = pdir->i_gid;
2163 ucp = &ucred;
2164#endif
2165 } else
2166 ip->i_uid = cnp->cn_cred->cr_uid;
2167
2168#ifdef QUOTA
50e58362
MD
2169 if ((error = ufs_getinoquota(ip)) ||
2170 (error = ufs_chkiq(ip, 1, ucp, 0))) {
ac690a1d 2171 ffs_vfree(tvp, ip->i_number, mode);
984263bc
MD
2172 vput(tvp);
2173 return (error);
2174 }
2175#endif
2176 }
2177#else /* !SUIDDIR */
2178 ip->i_uid = cnp->cn_cred->cr_uid;
2179#ifdef QUOTA
50e58362
MD
2180 if ((error = ufs_getinoquota(ip)) ||
2181 (error = ufs_chkiq(ip, 1, cnp->cn_cred, 0))) {
ac690a1d 2182 ffs_vfree(tvp, ip->i_number, mode);
984263bc
MD
2183 vput(tvp);
2184 return (error);
2185 }
2186#endif
2187#endif /* !SUIDDIR */
6b008938 2188 ip->i_fsmid = cache_getnewfsmid();
984263bc
MD
2189 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
2190 ip->i_mode = mode;
2191 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
2192 ip->i_effnlink = 1;
2193 ip->i_nlink = 1;
2194 if (DOINGSOFTDEP(tvp))
2195 softdep_change_linkcnt(ip);
2196 if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
895c1f85 2197 priv_check_cred(cnp->cn_cred, PRIV_ROOT, 0)) {
984263bc 2198 ip->i_mode &= ~ISGID;
41c20dac 2199 }
984263bc 2200
2b69e610 2201 if (cnp->cn_flags & CNP_ISWHITEOUT)
984263bc
MD
2202 ip->i_flags |= UF_OPAQUE;
2203
2204 /*
1c843a13
MD
2205 * Regular files and directories need VM objects. Softlinks do
2206 * not (not immediately anyway).
2207 */
2208 if (tvp->v_type == VREG || tvp->v_type == VDIR)
2209 vinitvmio(tvp, 0);
2210
2211 /*
984263bc
MD
2212 * Make sure inode goes to disk before directory entry.
2213 */
ac690a1d 2214 error = ffs_update(tvp, !(DOINGSOFTDEP(tvp) | DOINGASYNC(tvp)));
984263bc
MD
2215 if (error)
2216 goto bad;
2217 ufs_makedirentry(ip, cnp, &newdir);
2218 error = ufs_direnter(dvp, tvp, &newdir, cnp, NULL);
2219 if (error)
2220 goto bad;
2221 *vpp = tvp;
2222 return (0);
2223
2224bad:
2225 /*
2226 * Write error occurred trying to update the inode
2227 * or the directory so must deallocate the inode.
2228 */
2229 ip->i_effnlink = 0;
2230 ip->i_nlink = 0;
2231 ip->i_flag |= IN_CHANGE;
2232 if (DOINGSOFTDEP(tvp))
2233 softdep_change_linkcnt(ip);
2234 vput(tvp);
2235 return (error);
2236}
2237
2238static int
0973c589 2239ufs_missingop(struct vop_generic_args *ap)
984263bc 2240{
31bd717a 2241 panic("no vop function for %s in ufs child", ap->a_desc->sd_name);
984263bc
MD
2242 return (EOPNOTSUPP);
2243}
2244
2245static struct filterops ufsread_filtops =
2246 { 1, NULL, filt_ufsdetach, filt_ufsread };
2247static struct filterops ufswrite_filtops =
2248 { 1, NULL, filt_ufsdetach, filt_ufswrite };
2249static struct filterops ufsvnode_filtops =
2250 { 1, NULL, filt_ufsdetach, filt_ufsvnode };
2251
0973c589
CP
2252/*
2253 * ufs_kqfilter(struct vnode *a_vp, struct knote *a_kn)
2254 */
984263bc 2255static int
0973c589 2256ufs_kqfilter(struct vop_kqfilter_args *ap)
984263bc
MD
2257{
2258 struct vnode *vp = ap->a_vp;
2259 struct knote *kn = ap->a_kn;
41a01a4d 2260 lwkt_tokref ilock;
984263bc
MD
2261
2262 switch (kn->kn_filter) {
2263 case EVFILT_READ:
2264 kn->kn_fop = &ufsread_filtops;
2265 break;
2266 case EVFILT_WRITE:
2267 kn->kn_fop = &ufswrite_filtops;
2268 break;
2269 case EVFILT_VNODE:
2270 kn->kn_fop = &ufsvnode_filtops;
2271 break;
2272 default:
2273 return (1);
2274 }
2275
2276 kn->kn_hook = (caddr_t)vp;
2277
41a01a4d 2278 lwkt_gettoken(&ilock, &vp->v_pollinfo.vpi_token);
984263bc 2279 SLIST_INSERT_HEAD(&vp->v_pollinfo.vpi_selinfo.si_note, kn, kn_selnext);
41a01a4d 2280 lwkt_reltoken(&ilock);
984263bc
MD
2281
2282 return (0);
2283}
2284
2285static void
2286filt_ufsdetach(struct knote *kn)
2287{
2288 struct vnode *vp = (struct vnode *)kn->kn_hook;
41a01a4d 2289 lwkt_tokref ilock;
984263bc 2290
41a01a4d 2291 lwkt_gettoken(&ilock, &vp->v_pollinfo.vpi_token);
984263bc
MD
2292 SLIST_REMOVE(&vp->v_pollinfo.vpi_selinfo.si_note,
2293 kn, knote, kn_selnext);
41a01a4d 2294 lwkt_reltoken(&ilock);
984263bc
MD
2295}
2296
2297/*ARGSUSED*/
2298static int
2299filt_ufsread(struct knote *kn, long hint)
2300{
2301 struct vnode *vp = (struct vnode *)kn->kn_hook;
2302 struct inode *ip = VTOI(vp);
2303
2304 /*
2305 * filesystem is gone, so set the EOF flag and schedule
2306 * the knote for deletion.
2307 */
2308 if (hint == NOTE_REVOKE) {
2309 kn->kn_flags |= (EV_EOF | EV_ONESHOT);
2310 return (1);
2311 }
2312
2313 kn->kn_data = ip->i_size - kn->kn_fp->f_offset;
2314 return (kn->kn_data != 0);
2315}
2316
2317/*ARGSUSED*/
2318static int
2319filt_ufswrite(struct knote *kn, long hint)
2320{
984263bc
MD
2321 /*
2322 * filesystem is gone, so set the EOF flag and schedule
2323 * the knote for deletion.
2324 */
2325 if (hint == NOTE_REVOKE)
2326 kn->kn_flags |= (EV_EOF | EV_ONESHOT);
2327
2328 kn->kn_data = 0;
2329 return (1);
2330}
2331
2332static int
2333filt_ufsvnode(struct knote *kn, long hint)
2334{
984263bc
MD
2335 if (kn->kn_sfflags & hint)
2336 kn->kn_fflags |= hint;
2337 if (hint == NOTE_REVOKE) {
2338 kn->kn_flags |= EV_EOF;
2339 return (1);
2340 }
2341 return (kn->kn_fflags != 0);
2342}
2343
2344/* Global vfs data structures for ufs. */
66a1ddf5
MD
2345static struct vop_ops ufs_vnode_vops = {
2346 .vop_default = vop_defaultop,
2347 .vop_fsync = (void *)ufs_missingop,
2348 .vop_read = (void *)ufs_missingop,
2349 .vop_reallocblks = (void *)ufs_missingop,
2350 .vop_write = (void *)ufs_missingop,
2351 .vop_access = ufs_access,
2352 .vop_advlock = ufs_advlock,
2353 .vop_bmap = ufs_bmap,
2354 .vop_old_lookup = ufs_lookup,
2355 .vop_close = ufs_close,
2356 .vop_old_create = ufs_create,
2357 .vop_getattr = ufs_getattr,
2358 .vop_inactive = ufs_inactive,
66a1ddf5 2359 .vop_old_link = ufs_link,
64950f31
MD
2360 .vop_old_mkdir = ufs_mkdir,
2361 .vop_old_mknod = ufs_mknod,
66a1ddf5 2362 .vop_mmap = ufs_mmap,
3a907475 2363 .vop_open = vop_stdopen,
64950f31 2364 .vop_pathconf = vop_stdpathconf,
66a1ddf5
MD
2365 .vop_poll = vop_stdpoll,
2366 .vop_kqfilter = ufs_kqfilter,
2367 .vop_print = ufs_print,
2368 .vop_readdir = ufs_readdir,
2369 .vop_readlink = ufs_readlink,
2370 .vop_reclaim = ufs_reclaim,
2371 .vop_old_remove = ufs_remove,
2372 .vop_old_rename = ufs_rename,
2373 .vop_old_rmdir = ufs_rmdir,
2374 .vop_setattr = ufs_setattr,
349433c9 2375 .vop_markatime = ufs_markatime,
66a1ddf5
MD
2376 .vop_strategy = ufs_strategy,
2377 .vop_old_symlink = ufs_symlink,
66a1ddf5 2378 .vop_old_whiteout = ufs_whiteout
984263bc 2379};
66a1ddf5
MD
2380
2381static struct vop_ops ufs_spec_vops = {
2382 .vop_default = spec_vnoperate,
2383 .vop_fsync = (void *)ufs_missingop,
2384 .vop_access = ufs_access,
2385 .vop_close = ufsspec_close,
2386 .vop_getattr = ufs_getattr,
2387 .vop_inactive = ufs_inactive,
66a1ddf5
MD
2388 .vop_print = ufs_print,
2389 .vop_read = ufsspec_read,
2390 .vop_reclaim = ufs_reclaim,
2391 .vop_setattr = ufs_setattr,
349433c9 2392 .vop_markatime = ufs_markatime,
66a1ddf5 2393 .vop_write = ufsspec_write
984263bc 2394};
66a1ddf5
MD
2395
2396static struct vop_ops ufs_fifo_vops = {
2397 .vop_default = fifo_vnoperate,
2398 .vop_fsync = (void *)ufs_missingop,
2399 .vop_access = ufs_access,
2400 .vop_close = ufsfifo_close,
2401 .vop_getattr = ufs_getattr,
2402 .vop_inactive = ufs_inactive,
66a1ddf5 2403 .vop_kqfilter = ufsfifo_kqfilter,
66a1ddf5
MD
2404 .vop_print = ufs_print,
2405 .vop_read = ufsfifo_read,
2406 .vop_reclaim = ufs_reclaim,
2407 .vop_setattr = ufs_setattr,
349433c9 2408 .vop_markatime = ufs_markatime,
66a1ddf5 2409 .vop_write = ufsfifo_write
984263bc 2410};
984263bc 2411
66a1ddf5
MD
2412VNODEOP_SET(ufs_vnode_vops);
2413VNODEOP_SET(ufs_spec_vops);
2414VNODEOP_SET(ufs_fifo_vops);
984263bc 2415
0973c589 2416/*
31bd717a 2417 * ufs_vnoperate()
0973c589 2418 */
984263bc 2419int
0973c589 2420ufs_vnoperate(struct vop_generic_args *ap)
984263bc 2421{
66a1ddf5 2422 return (VOCALL(&ufs_vnode_vops, ap));
984263bc
MD
2423}
2424
0973c589 2425/*
31bd717a 2426 * ufs_vnoperatefifo()
0973c589 2427 */
984263bc 2428int
0973c589 2429ufs_vnoperatefifo(struct vop_generic_args *ap)
984263bc 2430{
66a1ddf5 2431 return (VOCALL(&ufs_fifo_vops, ap));
984263bc
MD
2432}
2433
0973c589 2434/*
31bd717a 2435 * ufs_vnoperatespec()
0973c589 2436 */
984263bc 2437int
0973c589 2438ufs_vnoperatespec(struct vop_generic_args *ap)
984263bc 2439{
66a1ddf5 2440 return (VOCALL(&ufs_spec_vops, ap));
984263bc 2441}