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.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * @(#)ufs_vnops.c 8.27 (Berkeley) 5/27/95
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include "opt_quota.h"
41 #include "opt_suiddir.h"
45 #include <sys/param.h>
46 #include <sys/systm.h>
47 #include <sys/malloc.h>
48 #include <sys/namei.h>
49 #include <sys/kernel.h>
50 #include <sys/fcntl.h>
51 #include <sys/filio.h>
55 #include <sys/mount.h>
57 #include <sys/refcount.h>
58 #include <sys/unistd.h>
59 #include <sys/vnode.h>
60 #include <sys/dirent.h>
61 #include <sys/lockf.h>
65 #include <security/mac/mac_framework.h>
67 #include <sys/file.h> /* XXX */
70 #include <vm/vm_extern.h>
72 #include <ufs/ufs/acl.h>
73 #include <ufs/ufs/extattr.h>
74 #include <ufs/ufs/quota.h>
75 #include <ufs/ufs/inode.h>
76 #include <ufs/ufs/dir.h>
77 #include <ufs/ufs/ufsmount.h>
78 #include <ufs/ufs/ufs_extern.h>
80 #include <ufs/ufs/dirhash.h>
83 #include <ufs/ufs/gjournal.h>
84 FEATURE(ufs_gjournal, "Journaling support through GEOM for UFS");
88 FEATURE(ufs_quota, "UFS disk quotas support");
89 FEATURE(ufs_quota64, "64bit UFS disk quotas support");
94 "Give all new files in directory the same ownership as the directory");
98 #include <ufs/ffs/ffs_extern.h>
100 static vop_accessx_t ufs_accessx;
101 static int ufs_chmod(struct vnode *, int, struct ucred *, struct thread *);
102 static int ufs_chown(struct vnode *, uid_t, gid_t, struct ucred *, struct thread *);
103 static vop_close_t ufs_close;
104 static vop_create_t ufs_create;
105 static vop_getattr_t ufs_getattr;
106 static vop_ioctl_t ufs_ioctl;
107 static vop_link_t ufs_link;
108 static int ufs_makeinode(int mode, struct vnode *, struct vnode **, struct componentname *);
109 static vop_markatime_t ufs_markatime;
110 static vop_mkdir_t ufs_mkdir;
111 static vop_mknod_t ufs_mknod;
112 static vop_open_t ufs_open;
113 static vop_pathconf_t ufs_pathconf;
114 static vop_print_t ufs_print;
115 static vop_readlink_t ufs_readlink;
116 static vop_remove_t ufs_remove;
117 static vop_rename_t ufs_rename;
118 static vop_rmdir_t ufs_rmdir;
119 static vop_setattr_t ufs_setattr;
120 static vop_strategy_t ufs_strategy;
121 static vop_symlink_t ufs_symlink;
122 static vop_whiteout_t ufs_whiteout;
123 static vop_close_t ufsfifo_close;
124 static vop_kqfilter_t ufsfifo_kqfilter;
125 static vop_pathconf_t ufsfifo_pathconf;
127 SYSCTL_NODE(_vfs, OID_AUTO, ufs, CTLFLAG_RD, 0, "UFS filesystem");
130 * A virgin directory (no blushing please).
132 static struct dirtemplate mastertemplate = {
133 0, 12, DT_DIR, 1, ".",
134 0, DIRBLKSIZ - 12, DT_DIR, 2, ".."
136 static struct odirtemplate omastertemplate = {
138 0, DIRBLKSIZ - 12, 2, ".."
142 ufs_itimes_locked(struct vnode *vp)
147 ASSERT_VI_LOCKED(vp, __func__);
152 if ((ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) == 0)
155 if ((vp->v_type == VBLK || vp->v_type == VCHR) && !DOINGSOFTDEP(vp))
156 ip->i_flag |= IN_LAZYMOD;
157 else if (((vp->v_mount->mnt_kern_flag &
158 (MNTK_SUSPENDED | MNTK_SUSPEND)) == 0) ||
159 (ip->i_flag & (IN_CHANGE | IN_UPDATE)))
160 ip->i_flag |= IN_MODIFIED;
161 else if (ip->i_flag & IN_ACCESS)
162 ip->i_flag |= IN_LAZYACCESS;
164 if (ip->i_flag & IN_ACCESS) {
165 DIP_SET(ip, i_atime, ts.tv_sec);
166 DIP_SET(ip, i_atimensec, ts.tv_nsec);
168 if (ip->i_flag & IN_UPDATE) {
169 DIP_SET(ip, i_mtime, ts.tv_sec);
170 DIP_SET(ip, i_mtimensec, ts.tv_nsec);
172 if (ip->i_flag & IN_CHANGE) {
173 DIP_SET(ip, i_ctime, ts.tv_sec);
174 DIP_SET(ip, i_ctimensec, ts.tv_nsec);
175 DIP_SET(ip, i_modrev, DIP(ip, i_modrev) + 1);
179 ip->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE);
183 ufs_itimes(struct vnode *vp)
187 ufs_itimes_locked(vp);
192 * Create a regular file
196 struct vop_create_args /* {
198 struct vnode **a_vpp;
199 struct componentname *a_cnp;
206 ufs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode),
207 ap->a_dvp, ap->a_vpp, ap->a_cnp);
210 if ((ap->a_cnp->cn_flags & MAKEENTRY) != 0)
211 cache_enter(ap->a_dvp, *ap->a_vpp, ap->a_cnp);
221 struct vop_mknod_args /* {
223 struct vnode **a_vpp;
224 struct componentname *a_cnp;
228 struct vattr *vap = ap->a_vap;
229 struct vnode **vpp = ap->a_vpp;
234 error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode),
235 ap->a_dvp, vpp, ap->a_cnp);
239 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
240 if (vap->va_rdev != VNOVAL) {
242 * Want to be able to use this to make badblock
243 * inodes, so don't truncate the dev number.
245 DIP_SET(ip, i_rdev, vap->va_rdev);
248 * Remove inode, then reload it through VFS_VGET so it is
249 * checked to see if it is an alias of an existing entry in
250 * the inode cache. XXX I don't believe this is necessary now.
252 (*vpp)->v_type = VNON;
253 ino = ip->i_number; /* Save this before vgone() invalidates ip. */
256 error = VFS_VGET(ap->a_dvp->v_mount, ino, LK_EXCLUSIVE, vpp);
269 ufs_open(struct vop_open_args *ap)
271 struct vnode *vp = ap->a_vp;
274 if (vp->v_type == VCHR || vp->v_type == VBLK)
279 * Files marked append-only must be opened for appending.
281 if ((ip->i_flags & APPEND) &&
282 (ap->a_mode & (FWRITE | O_APPEND)) == FWRITE)
284 vnode_create_vobject(vp, DIP(ip, i_size), ap->a_td);
291 * Update the times on the inode.
296 struct vop_close_args /* {
299 struct ucred *a_cred;
303 struct vnode *vp = ap->a_vp;
307 usecount = vp->v_usecount;
309 ufs_itimes_locked(vp);
316 struct vop_accessx_args /* {
319 struct ucred *a_cred;
323 struct vnode *vp = ap->a_vp;
324 struct inode *ip = VTOI(vp);
325 accmode_t accmode = ap->a_accmode;
336 * Disallow write attempts on read-only filesystems;
337 * unless the file is a socket, fifo, or a block or
338 * character device resident on the filesystem.
340 if (accmode & VMODIFY_PERMS) {
341 switch (vp->v_type) {
345 if (vp->v_mount->mnt_flag & MNT_RDONLY)
349 * Inode is accounted in the quotas only if struct
350 * dquot is attached to it. VOP_ACCESS() is called
351 * from vn_open_cred() and provides a convenient
352 * point to call getinoquota().
354 if (VOP_ISLOCKED(vp) != LK_EXCLUSIVE) {
357 * Upgrade vnode lock, since getinoquota()
358 * requires exclusive lock to modify inode.
362 vn_lock(vp, LK_UPGRADE | LK_RETRY);
364 if (vp->v_iflag & VI_DOOMED) {
372 error = getinoquota(ip);
375 vn_lock(vp, LK_DOWNGRADE | LK_RETRY);
386 * If immutable bit set, nobody gets to write it. "& ~VADMIN_PERMS"
387 * is here, because without it, * it would be impossible for the owner
388 * to remove the IMMUTABLE flag.
390 if ((accmode & (VMODIFY_PERMS & ~VADMIN_PERMS)) &&
391 (ip->i_flags & (IMMUTABLE | SF_SNAPSHOT)))
395 if ((vp->v_mount->mnt_flag & (MNT_ACLS | MNT_NFS4ACLS)) != 0) {
396 if (vp->v_mount->mnt_flag & MNT_NFS4ACLS)
397 type = ACL_TYPE_NFS4;
399 type = ACL_TYPE_ACCESS;
401 acl = acl_alloc(M_WAITOK);
402 if (type == ACL_TYPE_NFS4)
403 error = ufs_getacl_nfs4_internal(vp, acl, ap->a_td);
405 error = VOP_GETACL(vp, type, acl, ap->a_cred, ap->a_td);
408 if (type == ACL_TYPE_NFS4) {
409 error = vaccess_acl_nfs4(vp->v_type, ip->i_uid,
410 ip->i_gid, acl, accmode, ap->a_cred, NULL);
412 error = vfs_unixify_accmode(&accmode);
414 error = vaccess_acl_posix1e(vp->v_type, ip->i_uid,
415 ip->i_gid, acl, accmode, ap->a_cred, NULL);
419 if (error != EOPNOTSUPP)
421 "ufs_accessx(): Error retrieving ACL on object (%d).\n",
424 * XXX: Fall back until debugged. Should
425 * eventually possibly log an error, and return
428 error = vfs_unixify_accmode(&accmode);
430 error = vaccess(vp->v_type, ip->i_mode, ip->i_uid,
431 ip->i_gid, accmode, ap->a_cred, NULL);
437 #endif /* !UFS_ACL */
438 error = vfs_unixify_accmode(&accmode);
440 error = vaccess(vp->v_type, ip->i_mode, ip->i_uid, ip->i_gid,
441 accmode, ap->a_cred, NULL);
448 struct vop_getattr_args /* {
451 struct ucred *a_cred;
454 struct vnode *vp = ap->a_vp;
455 struct inode *ip = VTOI(vp);
456 struct vattr *vap = ap->a_vap;
459 ufs_itimes_locked(vp);
460 if (ip->i_ump->um_fstype == UFS1) {
461 vap->va_atime.tv_sec = ip->i_din1->di_atime;
462 vap->va_atime.tv_nsec = ip->i_din1->di_atimensec;
464 vap->va_atime.tv_sec = ip->i_din2->di_atime;
465 vap->va_atime.tv_nsec = ip->i_din2->di_atimensec;
469 * Copy from inode table
471 vap->va_fsid = dev2udev(ip->i_dev);
472 vap->va_fileid = ip->i_number;
473 vap->va_mode = ip->i_mode & ~IFMT;
474 vap->va_nlink = ip->i_effnlink;
475 vap->va_uid = ip->i_uid;
476 vap->va_gid = ip->i_gid;
477 if (ip->i_ump->um_fstype == UFS1) {
478 vap->va_rdev = ip->i_din1->di_rdev;
479 vap->va_size = ip->i_din1->di_size;
480 vap->va_mtime.tv_sec = ip->i_din1->di_mtime;
481 vap->va_mtime.tv_nsec = ip->i_din1->di_mtimensec;
482 vap->va_ctime.tv_sec = ip->i_din1->di_ctime;
483 vap->va_ctime.tv_nsec = ip->i_din1->di_ctimensec;
484 vap->va_bytes = dbtob((u_quad_t)ip->i_din1->di_blocks);
485 vap->va_filerev = ip->i_din1->di_modrev;
487 vap->va_rdev = ip->i_din2->di_rdev;
488 vap->va_size = ip->i_din2->di_size;
489 vap->va_mtime.tv_sec = ip->i_din2->di_mtime;
490 vap->va_mtime.tv_nsec = ip->i_din2->di_mtimensec;
491 vap->va_ctime.tv_sec = ip->i_din2->di_ctime;
492 vap->va_ctime.tv_nsec = ip->i_din2->di_ctimensec;
493 vap->va_birthtime.tv_sec = ip->i_din2->di_birthtime;
494 vap->va_birthtime.tv_nsec = ip->i_din2->di_birthnsec;
495 vap->va_bytes = dbtob((u_quad_t)ip->i_din2->di_blocks);
496 vap->va_filerev = ip->i_din2->di_modrev;
498 vap->va_flags = ip->i_flags;
499 vap->va_gen = ip->i_gen;
500 vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
501 vap->va_type = IFTOVT(ip->i_mode);
506 * Set attribute vnode op. called from several syscalls
510 struct vop_setattr_args /* {
513 struct ucred *a_cred;
516 struct vattr *vap = ap->a_vap;
517 struct vnode *vp = ap->a_vp;
518 struct inode *ip = VTOI(vp);
519 struct ucred *cred = ap->a_cred;
520 struct thread *td = curthread;
524 * Check for unsettable attributes.
526 if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
527 (vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
528 (vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
529 ((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
532 if (vap->va_flags != VNOVAL) {
533 if ((vap->va_flags & ~(SF_APPEND | SF_ARCHIVED | SF_IMMUTABLE |
534 SF_NOUNLINK | SF_SNAPSHOT | UF_APPEND | UF_ARCHIVE |
535 UF_HIDDEN | UF_IMMUTABLE | UF_NODUMP | UF_NOUNLINK |
536 UF_OFFLINE | UF_OPAQUE | UF_READONLY | UF_REPARSE |
537 UF_SPARSE | UF_SYSTEM)) != 0)
539 if (vp->v_mount->mnt_flag & MNT_RDONLY)
542 * Callers may only modify the file flags on objects they
543 * have VADMIN rights for.
545 if ((error = VOP_ACCESS(vp, VADMIN, cred, td)))
548 * Unprivileged processes are not permitted to unset system
549 * flags, or modify flags if any system flags are set.
550 * Privileged non-jail processes may not modify system flags
551 * if securelevel > 0 and any existing system flags are set.
552 * Privileged jail processes behave like privileged non-jail
553 * processes if the security.jail.chflags_allowed sysctl is
554 * is non-zero; otherwise, they behave like unprivileged
557 if (!priv_check_cred(cred, PRIV_VFS_SYSFLAGS, 0)) {
559 (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND)) {
560 error = securelevel_gt(cred, 0);
564 /* The snapshot flag cannot be toggled. */
565 if ((vap->va_flags ^ ip->i_flags) & SF_SNAPSHOT)
569 (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
570 ((vap->va_flags ^ ip->i_flags) & SF_SETTABLE))
573 ip->i_flags = vap->va_flags;
574 DIP_SET(ip, i_flags, vap->va_flags);
575 ip->i_flag |= IN_CHANGE;
576 error = UFS_UPDATE(vp, 0);
577 if (ip->i_flags & (IMMUTABLE | APPEND))
581 * If immutable or append, no one can change any of its attributes
582 * except the ones already handled (in some cases, file flags
583 * including the immutability flags themselves for the superuser).
585 if (ip->i_flags & (IMMUTABLE | APPEND))
588 * Go through the fields and update iff not VNOVAL.
590 if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
591 if (vp->v_mount->mnt_flag & MNT_RDONLY)
593 if ((error = ufs_chown(vp, vap->va_uid, vap->va_gid, cred,
597 if (vap->va_size != VNOVAL) {
599 * XXX most of the following special cases should be in
600 * callers instead of in N filesystems. The VDIR check
603 switch (vp->v_type) {
609 * Truncation should have an effect in these cases.
610 * Disallow it if the filesystem is read-only or
611 * the file is being snapshotted.
613 if (vp->v_mount->mnt_flag & MNT_RDONLY)
615 if ((ip->i_flags & SF_SNAPSHOT) != 0)
620 * According to POSIX, the result is unspecified
621 * for file types other than regular files,
622 * directories and shared memory objects. We
623 * don't support shared memory objects in the file
624 * system, and have dubious support for truncating
625 * symlinks. Just ignore the request in other cases.
629 if ((error = UFS_TRUNCATE(vp, vap->va_size, IO_NORMAL,
633 if (vap->va_atime.tv_sec != VNOVAL ||
634 vap->va_mtime.tv_sec != VNOVAL ||
635 vap->va_birthtime.tv_sec != VNOVAL) {
636 if (vp->v_mount->mnt_flag & MNT_RDONLY)
638 if ((ip->i_flags & SF_SNAPSHOT) != 0)
640 error = vn_utimes_perm(vp, vap, cred, td);
643 if (vap->va_atime.tv_sec != VNOVAL)
644 ip->i_flag |= IN_ACCESS;
645 if (vap->va_mtime.tv_sec != VNOVAL)
646 ip->i_flag |= IN_CHANGE | IN_UPDATE;
647 if (vap->va_birthtime.tv_sec != VNOVAL &&
648 ip->i_ump->um_fstype == UFS2)
649 ip->i_flag |= IN_MODIFIED;
651 if (vap->va_atime.tv_sec != VNOVAL) {
652 DIP_SET(ip, i_atime, vap->va_atime.tv_sec);
653 DIP_SET(ip, i_atimensec, vap->va_atime.tv_nsec);
655 if (vap->va_mtime.tv_sec != VNOVAL) {
656 DIP_SET(ip, i_mtime, vap->va_mtime.tv_sec);
657 DIP_SET(ip, i_mtimensec, vap->va_mtime.tv_nsec);
659 if (vap->va_birthtime.tv_sec != VNOVAL &&
660 ip->i_ump->um_fstype == UFS2) {
661 ip->i_din2->di_birthtime = vap->va_birthtime.tv_sec;
662 ip->i_din2->di_birthnsec = vap->va_birthtime.tv_nsec;
664 error = UFS_UPDATE(vp, 0);
669 if (vap->va_mode != (mode_t)VNOVAL) {
670 if (vp->v_mount->mnt_flag & MNT_RDONLY)
672 if ((ip->i_flags & SF_SNAPSHOT) != 0 && (vap->va_mode &
673 (S_IXUSR | S_IWUSR | S_IXGRP | S_IWGRP | S_IXOTH | S_IWOTH)))
675 error = ufs_chmod(vp, (int)vap->va_mode, cred, td);
682 ufs_update_nfs4_acl_after_mode_change(struct vnode *vp, int mode,
683 int file_owner_id, struct ucred *cred, struct thread *td)
688 aclp = acl_alloc(M_WAITOK);
689 error = ufs_getacl_nfs4_internal(vp, aclp, td);
691 * We don't have to handle EOPNOTSUPP here, as the filesystem claims
697 acl_nfs4_sync_acl_from_mode(aclp, mode, file_owner_id);
698 error = ufs_setacl_nfs4_internal(vp, aclp, td);
707 * Mark this file's access time for update for vfs_mark_atime(). This
708 * is called from execve() and mmap().
712 struct vop_markatime_args /* {
716 struct vnode *vp = ap->a_vp;
717 struct inode *ip = VTOI(vp);
720 ip->i_flag |= IN_ACCESS;
723 * XXXKIB No UFS_UPDATE(ap->a_vp, 0) there.
729 * Change the mode on a file.
730 * Inode must be locked before calling.
733 ufs_chmod(vp, mode, cred, td)
739 struct inode *ip = VTOI(vp);
743 * To modify the permissions on a file, must possess VADMIN
746 if ((error = VOP_ACCESSX(vp, VWRITE_ACL, cred, td)))
749 * Privileged processes may set the sticky bit on non-directories,
750 * as well as set the setgid bit on a file with a group that the
751 * process is not a member of. Both of these are allowed in
754 if (vp->v_type != VDIR && (mode & S_ISTXT)) {
755 if (priv_check_cred(cred, PRIV_VFS_STICKYFILE, 0))
758 if (!groupmember(ip->i_gid, cred) && (mode & ISGID)) {
759 error = priv_check_cred(cred, PRIV_VFS_SETGID, 0);
765 * Deny setting setuid if we are not the file owner.
767 if ((mode & ISUID) && ip->i_uid != cred->cr_uid) {
768 error = priv_check_cred(cred, PRIV_VFS_ADMIN, 0);
773 ip->i_mode &= ~ALLPERMS;
774 ip->i_mode |= (mode & ALLPERMS);
775 DIP_SET(ip, i_mode, ip->i_mode);
776 ip->i_flag |= IN_CHANGE;
778 if ((vp->v_mount->mnt_flag & MNT_NFS4ACLS) != 0)
779 error = ufs_update_nfs4_acl_after_mode_change(vp, mode, ip->i_uid, cred, td);
781 if (error == 0 && (ip->i_flag & IN_CHANGE) != 0)
782 error = UFS_UPDATE(vp, 0);
788 * Perform chown operation on inode ip;
789 * inode must be locked prior to call.
792 ufs_chown(vp, uid, gid, cred, td)
799 struct inode *ip = VTOI(vp);
808 if (uid == (uid_t)VNOVAL)
810 if (gid == (gid_t)VNOVAL)
813 * To modify the ownership of a file, must possess VADMIN for that
816 if ((error = VOP_ACCESSX(vp, VWRITE_OWNER, cred, td)))
819 * To change the owner of a file, or change the group of a file to a
820 * group of which we are not a member, the caller must have
823 if (((uid != ip->i_uid && uid != cred->cr_uid) ||
824 (gid != ip->i_gid && !groupmember(gid, cred))) &&
825 (error = priv_check_cred(cred, PRIV_VFS_CHOWN, 0)))
830 if ((error = getinoquota(ip)) != 0)
833 dqrele(vp, ip->i_dquot[USRQUOTA]);
834 ip->i_dquot[USRQUOTA] = NODQUOT;
837 dqrele(vp, ip->i_dquot[GRPQUOTA]);
838 ip->i_dquot[GRPQUOTA] = NODQUOT;
840 change = DIP(ip, i_blocks);
841 (void) chkdq(ip, -change, cred, CHOWN);
842 (void) chkiq(ip, -1, cred, CHOWN);
843 for (i = 0; i < MAXQUOTAS; i++) {
844 dqrele(vp, ip->i_dquot[i]);
845 ip->i_dquot[i] = NODQUOT;
849 DIP_SET(ip, i_gid, gid);
851 DIP_SET(ip, i_uid, uid);
853 if ((error = getinoquota(ip)) == 0) {
855 dqrele(vp, ip->i_dquot[USRQUOTA]);
856 ip->i_dquot[USRQUOTA] = NODQUOT;
859 dqrele(vp, ip->i_dquot[GRPQUOTA]);
860 ip->i_dquot[GRPQUOTA] = NODQUOT;
862 if ((error = chkdq(ip, change, cred, CHOWN)) == 0) {
863 if ((error = chkiq(ip, 1, cred, CHOWN)) == 0)
866 (void) chkdq(ip, -change, cred, CHOWN|FORCE);
868 for (i = 0; i < MAXQUOTAS; i++) {
869 dqrele(vp, ip->i_dquot[i]);
870 ip->i_dquot[i] = NODQUOT;
874 DIP_SET(ip, i_gid, ogid);
876 DIP_SET(ip, i_uid, ouid);
877 if (getinoquota(ip) == 0) {
879 dqrele(vp, ip->i_dquot[USRQUOTA]);
880 ip->i_dquot[USRQUOTA] = NODQUOT;
883 dqrele(vp, ip->i_dquot[GRPQUOTA]);
884 ip->i_dquot[GRPQUOTA] = NODQUOT;
886 (void) chkdq(ip, change, cred, FORCE|CHOWN);
887 (void) chkiq(ip, 1, cred, FORCE|CHOWN);
888 (void) getinoquota(ip);
893 panic("ufs_chown: lost quota");
895 ip->i_flag |= IN_CHANGE;
896 if ((ip->i_mode & (ISUID | ISGID)) && (ouid != uid || ogid != gid)) {
897 if (priv_check_cred(cred, PRIV_VFS_RETAINSUGID, 0)) {
898 ip->i_mode &= ~(ISUID | ISGID);
899 DIP_SET(ip, i_mode, ip->i_mode);
902 error = UFS_UPDATE(vp, 0);
908 struct vop_remove_args /* {
911 struct componentname *a_cnp;
915 struct vnode *vp = ap->a_vp;
916 struct vnode *dvp = ap->a_dvp;
922 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
923 (VTOI(dvp)->i_flags & APPEND)) {
928 ufs_gjournal_orphan(vp);
930 error = ufs_dirremove(dvp, ip, ap->a_cnp->cn_flags, 0);
931 if (ip->i_nlink <= 0)
932 vp->v_vflag |= VV_NOSYNC;
933 if ((ip->i_flags & SF_SNAPSHOT) != 0) {
935 * Avoid deadlock where another thread is trying to
936 * update the inodeblock for dvp and is waiting on
937 * snaplk. Temporary unlock the vnode lock for the
938 * unlinked file and sync the directory. This should
939 * allow vput() of the directory to not block later on
940 * while holding the snapshot vnode locked, assuming
941 * that the directory hasn't been unlinked too.
944 (void) VOP_FSYNC(dvp, MNT_WAIT, td);
945 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
956 struct vop_link_args /* {
957 struct vnode *a_tdvp;
959 struct componentname *a_cnp;
962 struct vnode *vp = ap->a_vp;
963 struct vnode *tdvp = ap->a_tdvp;
964 struct componentname *cnp = ap->a_cnp;
966 struct direct newdir;
970 if ((cnp->cn_flags & HASBUF) == 0)
971 panic("ufs_link: no name");
973 if (VTOI(tdvp)->i_effnlink < 2)
974 panic("ufs_link: Bad link count %d on parent",
975 VTOI(tdvp)->i_effnlink);
977 if ((nlink_t)ip->i_nlink >= LINK_MAX) {
982 * The file may have been removed after namei droped the original
985 if (ip->i_effnlink == 0) {
989 if (ip->i_flags & (IMMUTABLE | APPEND)) {
995 DIP_SET(ip, i_nlink, ip->i_nlink);
996 ip->i_flag |= IN_CHANGE;
997 if (DOINGSOFTDEP(vp))
998 softdep_setup_link(VTOI(tdvp), ip);
999 error = UFS_UPDATE(vp, !(DOINGSOFTDEP(vp) | DOINGASYNC(vp)));
1001 ufs_makedirentry(ip, cnp, &newdir);
1002 error = ufs_direnter(tdvp, vp, &newdir, cnp, NULL, 0);
1008 DIP_SET(ip, i_nlink, ip->i_nlink);
1009 ip->i_flag |= IN_CHANGE;
1010 if (DOINGSOFTDEP(vp))
1011 softdep_revert_link(VTOI(tdvp), ip);
1018 * whiteout vnode call
1022 struct vop_whiteout_args /* {
1023 struct vnode *a_dvp;
1024 struct componentname *a_cnp;
1028 struct vnode *dvp = ap->a_dvp;
1029 struct componentname *cnp = ap->a_cnp;
1030 struct direct newdir;
1033 switch (ap->a_flags) {
1035 /* 4.4 format directories support whiteout operations */
1036 if (dvp->v_mount->mnt_maxsymlinklen > 0)
1038 return (EOPNOTSUPP);
1041 /* create a new directory whiteout */
1043 if ((cnp->cn_flags & SAVENAME) == 0)
1044 panic("ufs_whiteout: missing name");
1045 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
1046 panic("ufs_whiteout: old format filesystem");
1049 newdir.d_ino = WINO;
1050 newdir.d_namlen = cnp->cn_namelen;
1051 bcopy(cnp->cn_nameptr, newdir.d_name, (unsigned)cnp->cn_namelen + 1);
1052 newdir.d_type = DT_WHT;
1053 error = ufs_direnter(dvp, NULL, &newdir, cnp, NULL, 0);
1057 /* remove an existing directory whiteout */
1059 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
1060 panic("ufs_whiteout: old format filesystem");
1063 cnp->cn_flags &= ~DOWHITEOUT;
1064 error = ufs_dirremove(dvp, NULL, cnp->cn_flags, 0);
1067 panic("ufs_whiteout: unknown op");
1072 static volatile int rename_restarts;
1073 SYSCTL_INT(_vfs_ufs, OID_AUTO, rename_restarts, CTLFLAG_RD,
1074 __DEVOLATILE(int *, &rename_restarts), 0,
1075 "Times rename had to restart due to lock contention");
1078 * Rename system call.
1079 * rename("foo", "bar");
1082 * link("foo", "bar");
1084 * but ``atomically''. Can't do full commit without saving state in the
1085 * inode on disk which isn't feasible at this time. Best we can do is
1086 * always guarantee the target exists.
1088 * Basic algorithm is:
1090 * 1) Bump link count on source while we're linking it to the
1091 * target. This also ensure the inode won't be deleted out
1092 * from underneath us while we work (it may be truncated by
1093 * a concurrent `trunc' or `open' for creation).
1094 * 2) Link source to destination. If destination already exists,
1096 * 3) Unlink source reference to inode if still around. If a
1097 * directory was moved and the parent of the destination
1098 * is different from the source, patch the ".." entry in the
1103 struct vop_rename_args /* {
1104 struct vnode *a_fdvp;
1105 struct vnode *a_fvp;
1106 struct componentname *a_fcnp;
1107 struct vnode *a_tdvp;
1108 struct vnode *a_tvp;
1109 struct componentname *a_tcnp;
1112 struct vnode *tvp = ap->a_tvp;
1113 struct vnode *tdvp = ap->a_tdvp;
1114 struct vnode *fvp = ap->a_fvp;
1115 struct vnode *fdvp = ap->a_fdvp;
1117 struct componentname *tcnp = ap->a_tcnp;
1118 struct componentname *fcnp = ap->a_fcnp;
1119 struct thread *td = fcnp->cn_thread;
1120 struct inode *fip, *tip, *tdp, *fdp;
1121 struct direct newdir;
1123 int doingdirectory, newparent;
1129 if ((tcnp->cn_flags & HASBUF) == 0 ||
1130 (fcnp->cn_flags & HASBUF) == 0)
1131 panic("ufs_rename: no name");
1135 VOP_UNLOCK(tdvp, 0);
1136 if (tvp && tvp != tdvp)
1139 * Check for cross-device rename.
1141 if ((fvp->v_mount != tdvp->v_mount) ||
1142 (tvp && (fvp->v_mount != tvp->v_mount))) {
1149 * We need to acquire 2 to 4 locks depending on whether tvp is NULL
1150 * and fdvp and tdvp are the same directory. Subsequently we need
1151 * to double-check all paths and in the directory rename case we
1152 * need to verify that we are not creating a directory loop. To
1153 * handle this we acquire all but fdvp using non-blocking
1154 * acquisitions. If we fail to acquire any lock in the path we will
1155 * drop all held locks, acquire the new lock in a blocking fashion,
1156 * and then release it and restart the rename. This acquire/release
1157 * step ensures that we do not spin on a lock waiting for release.
1159 error = vn_lock(fdvp, LK_EXCLUSIVE);
1162 if (vn_lock(tdvp, LK_EXCLUSIVE | LK_NOWAIT) != 0) {
1163 VOP_UNLOCK(fdvp, 0);
1164 error = vn_lock(tdvp, LK_EXCLUSIVE);
1167 VOP_UNLOCK(tdvp, 0);
1168 atomic_add_int(&rename_restarts, 1);
1172 * Re-resolve fvp to be certain it still exists and fetch the
1175 error = ufs_lookup_ino(fdvp, NULL, fcnp, &ino);
1177 VOP_UNLOCK(fdvp, 0);
1178 VOP_UNLOCK(tdvp, 0);
1181 error = VFS_VGET(mp, ino, LK_EXCLUSIVE | LK_NOWAIT, &nvp);
1183 VOP_UNLOCK(fdvp, 0);
1184 VOP_UNLOCK(tdvp, 0);
1187 error = VFS_VGET(mp, ino, LK_EXCLUSIVE, &nvp);
1193 atomic_add_int(&rename_restarts, 1);
1199 * Re-resolve tvp and acquire the vnode lock if present.
1201 error = ufs_lookup_ino(tdvp, NULL, tcnp, &ino);
1202 if (error != 0 && error != EJUSTRETURN) {
1203 VOP_UNLOCK(fdvp, 0);
1204 VOP_UNLOCK(tdvp, 0);
1209 * If tvp disappeared we just carry on.
1211 if (error == EJUSTRETURN && tvp != NULL) {
1216 * Get the tvp ino if the lookup succeeded. We may have to restart
1217 * if the non-blocking acquire fails.
1221 error = VFS_VGET(mp, ino, LK_EXCLUSIVE | LK_NOWAIT, &nvp);
1226 VOP_UNLOCK(fdvp, 0);
1227 VOP_UNLOCK(tdvp, 0);
1231 error = VFS_VGET(mp, ino, LK_EXCLUSIVE, &nvp);
1235 atomic_add_int(&rename_restarts, 1);
1245 if (tvp && ((VTOI(tvp)->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
1246 (VTOI(tdvp)->i_flags & APPEND))) {
1251 * Renaming a file to itself has no effect. The upper layers should
1252 * not call us in that case. However, things could change after
1253 * we drop the locks above.
1261 ino = fip->i_number;
1262 if (fip->i_nlink >= LINK_MAX) {
1266 if ((fip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))
1267 || (fdp->i_flags & APPEND)) {
1271 if ((fip->i_mode & IFMT) == IFDIR) {
1273 * Avoid ".", "..", and aliases of "." for obvious reasons.
1275 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
1277 (fcnp->cn_flags | tcnp->cn_flags) & ISDOTDOT) {
1281 if (fdp->i_number != tdp->i_number)
1282 newparent = tdp->i_number;
1285 if ((fvp->v_type == VDIR && fvp->v_mountedhere != NULL) ||
1286 (tvp != NULL && tvp->v_type == VDIR &&
1287 tvp->v_mountedhere != NULL)) {
1293 * If ".." must be changed (ie the directory gets a new
1294 * parent) then the source directory must not be in the
1295 * directory hierarchy above the target, as this would
1296 * orphan everything below the source directory. Also
1297 * the user must have write permission in the source so
1298 * as to be able to change "..".
1300 if (doingdirectory && newparent) {
1301 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_thread);
1304 error = ufs_checkpath(ino, fdp->i_number, tdp, tcnp->cn_cred,
1307 * We encountered a lock that we have to wait for. Unlock
1308 * everything else and VGET before restarting.
1311 VOP_UNLOCK(fdvp, 0);
1313 VOP_UNLOCK(tdvp, 0);
1316 error = VFS_VGET(mp, ino, LK_SHARED, &nvp);
1319 atomic_add_int(&rename_restarts, 1);
1324 if ((tcnp->cn_flags & SAVESTART) == 0)
1325 panic("ufs_rename: lost to startdir");
1327 if (fip->i_effnlink == 0 || fdp->i_effnlink == 0 ||
1328 tdp->i_effnlink == 0)
1329 panic("Bad effnlink fip %p, fdp %p, tdp %p", fip, fdp, tdp);
1332 * 1) Bump link count while we're moving stuff
1333 * around. If we crash somewhere before
1334 * completing our work, the link count
1335 * may be wrong, but correctable.
1339 DIP_SET(fip, i_nlink, fip->i_nlink);
1340 fip->i_flag |= IN_CHANGE;
1341 if (DOINGSOFTDEP(fvp))
1342 softdep_setup_link(tdp, fip);
1343 error = UFS_UPDATE(fvp, !(DOINGSOFTDEP(fvp) | DOINGASYNC(fvp)));
1348 * 2) If target doesn't exist, link the target
1349 * to the source and unlink the source.
1350 * Otherwise, rewrite the target directory
1351 * entry to reference the source inode and
1352 * expunge the original entry's existence.
1355 if (tdp->i_dev != fip->i_dev)
1356 panic("ufs_rename: EXDEV");
1357 if (doingdirectory && newparent) {
1359 * Account for ".." in new directory.
1360 * When source and destination have the same
1361 * parent we don't adjust the link count. The
1362 * actual link modification is completed when
1363 * .. is rewritten below.
1365 if ((nlink_t)tdp->i_nlink >= LINK_MAX) {
1370 ufs_makedirentry(fip, tcnp, &newdir);
1371 error = ufs_direnter(tdvp, NULL, &newdir, tcnp, NULL, 1);
1374 /* Setup tdvp for directory compaction if needed. */
1375 if (tdp->i_count && tdp->i_endoff &&
1376 tdp->i_endoff < tdp->i_size)
1377 endoff = tdp->i_endoff;
1379 if (tip->i_dev != tdp->i_dev || tip->i_dev != fip->i_dev)
1380 panic("ufs_rename: EXDEV");
1382 * Short circuit rename(foo, foo).
1384 if (tip->i_number == fip->i_number)
1385 panic("ufs_rename: same file");
1387 * If the parent directory is "sticky", then the caller
1388 * must possess VADMIN for the parent directory, or the
1389 * destination of the rename. This implements append-only
1392 if ((tdp->i_mode & S_ISTXT) &&
1393 VOP_ACCESS(tdvp, VADMIN, tcnp->cn_cred, td) &&
1394 VOP_ACCESS(tvp, VADMIN, tcnp->cn_cred, td)) {
1399 * Target must be empty if a directory and have no links
1400 * to it. Also, ensure source and target are compatible
1401 * (both directories, or both not directories).
1403 if ((tip->i_mode & IFMT) == IFDIR) {
1404 if ((tip->i_effnlink > 2) ||
1405 !ufs_dirempty(tip, tdp->i_number, tcnp->cn_cred)) {
1409 if (!doingdirectory) {
1414 } else if (doingdirectory) {
1418 if (doingdirectory) {
1421 if (DOINGSOFTDEP(tdvp))
1422 softdep_change_linkcnt(tdp);
1425 if (DOINGSOFTDEP(tvp))
1426 softdep_change_linkcnt(tip);
1428 error = ufs_dirrewrite(tdp, tip, fip->i_number,
1429 IFTODT(fip->i_mode),
1430 (doingdirectory && newparent) ? newparent : doingdirectory);
1432 if (doingdirectory) {
1435 if (DOINGSOFTDEP(tdvp))
1436 softdep_change_linkcnt(tdp);
1439 if (DOINGSOFTDEP(tvp))
1440 softdep_change_linkcnt(tip);
1443 if (doingdirectory && !DOINGSOFTDEP(tvp)) {
1445 * The only stuff left in the directory is "."
1446 * and "..". The "." reference is inconsequential
1447 * since we are quashing it. We have removed the "."
1448 * reference and the reference in the parent directory,
1449 * but there may be other hard links. The soft
1450 * dependency code will arrange to do these operations
1451 * after the parent directory entry has been deleted on
1452 * disk, so when running with that code we avoid doing
1457 DIP_SET(tdp, i_nlink, tdp->i_nlink);
1458 tdp->i_flag |= IN_CHANGE;
1461 DIP_SET(tip, i_nlink, tip->i_nlink);
1462 tip->i_flag |= IN_CHANGE;
1467 * 3) Unlink the source. We have to resolve the path again to
1468 * fixup the directory offset and count for ufs_dirremove.
1471 error = ufs_lookup_ino(fdvp, NULL, fcnp, &ino);
1473 panic("ufs_rename: from entry went away!");
1474 if (ino != fip->i_number)
1475 panic("ufs_rename: ino mismatch %ju != %ju\n",
1476 (uintmax_t)ino, (uintmax_t)fip->i_number);
1479 * If the source is a directory with a
1480 * new parent, the link count of the old
1481 * parent directory must be decremented
1482 * and ".." set to point to the new parent.
1484 if (doingdirectory && newparent) {
1486 * If tip exists we simply use its link, otherwise we must
1492 DIP_SET(tdp, i_nlink, tdp->i_nlink);
1493 tdp->i_flag |= IN_CHANGE;
1494 if (DOINGSOFTDEP(tdvp))
1495 softdep_setup_dotdot_link(tdp, fip);
1496 error = UFS_UPDATE(tdvp, !(DOINGSOFTDEP(tdvp) |
1498 /* Don't go to bad here as the new link exists. */
1501 } else if (DOINGSUJ(tdvp))
1502 /* Journal must account for each new link. */
1503 softdep_setup_dotdot_link(tdp, fip);
1504 fip->i_offset = mastertemplate.dot_reclen;
1505 ufs_dirrewrite(fip, fdp, newparent, DT_DIR, 0);
1508 error = ufs_dirremove(fdvp, fip, fcnp->cn_flags, 0);
1510 * The kern_renameat() looks up the fvp using the DELETE flag, which
1511 * causes the removal of the name cache entry for fvp.
1512 * As the relookup of the fvp is done in two steps:
1513 * ufs_lookup_ino() and then VFS_VGET(), another thread might do a
1514 * normal lookup of the from name just before the VFS_VGET() call,
1515 * causing the cache entry to be re-instantiated.
1517 * The same issue also applies to tvp if it exists as
1518 * otherwise we may have a stale name cache entry for the new
1519 * name that references the old i-node if it has other links
1520 * or open file descriptors.
1525 cache_purge_negative(tdvp);
1533 * If compaction or fsync was requested do it now that other locks
1534 * are no longer needed.
1536 if (error == 0 && endoff != 0) {
1538 if (tdp->i_dirhash != NULL)
1539 ufsdirhash_dirtrunc(tdp, endoff);
1541 UFS_TRUNCATE(tdvp, endoff, IO_NORMAL | IO_SYNC, tcnp->cn_cred);
1543 if (error == 0 && tdp->i_flag & IN_NEEDSYNC)
1544 error = VOP_FSYNC(tdvp, MNT_WAIT, td);
1551 DIP_SET(fip, i_nlink, fip->i_nlink);
1552 fip->i_flag |= IN_CHANGE;
1553 if (DOINGSOFTDEP(fvp))
1554 softdep_revert_link(tdp, fip);
1569 ufs_do_posix1e_acl_inheritance_dir(struct vnode *dvp, struct vnode *tvp,
1570 mode_t dmode, struct ucred *cred, struct thread *td)
1573 struct inode *ip = VTOI(tvp);
1574 struct acl *dacl, *acl;
1576 acl = acl_alloc(M_WAITOK);
1577 dacl = acl_alloc(M_WAITOK);
1580 * Retrieve default ACL from parent, if any.
1582 error = VOP_GETACL(dvp, ACL_TYPE_DEFAULT, acl, cred, td);
1586 * Retrieved a default ACL, so merge mode and ACL if
1587 * necessary. If the ACL is empty, fall through to
1588 * the "not defined or available" case.
1590 if (acl->acl_cnt != 0) {
1591 dmode = acl_posix1e_newfilemode(dmode, acl);
1593 DIP_SET(ip, i_mode, dmode);
1595 ufs_sync_acl_from_inode(ip, acl);
1602 * Just use the mode as-is.
1605 DIP_SET(ip, i_mode, dmode);
1614 * XXX: If we abort now, will Soft Updates notify the extattr
1615 * code that the EAs for the file need to be released?
1617 error = VOP_SETACL(tvp, ACL_TYPE_ACCESS, acl, cred, td);
1619 error = VOP_SETACL(tvp, ACL_TYPE_DEFAULT, dacl, cred, td);
1626 * XXX: This should not happen, as EOPNOTSUPP above
1627 * was supposed to free acl.
1629 printf("ufs_mkdir: VOP_GETACL() but no VOP_SETACL()\n");
1631 panic("ufs_mkdir: VOP_GETACL() but no VOP_SETACL()");
1647 ufs_do_posix1e_acl_inheritance_file(struct vnode *dvp, struct vnode *tvp,
1648 mode_t mode, struct ucred *cred, struct thread *td)
1651 struct inode *ip = VTOI(tvp);
1654 acl = acl_alloc(M_WAITOK);
1657 * Retrieve default ACL for parent, if any.
1659 error = VOP_GETACL(dvp, ACL_TYPE_DEFAULT, acl, cred, td);
1663 * Retrieved a default ACL, so merge mode and ACL if
1666 if (acl->acl_cnt != 0) {
1668 * Two possible ways for default ACL to not
1669 * be present. First, the EA can be
1670 * undefined, or second, the default ACL can
1671 * be blank. If it's blank, fall through to
1672 * the it's not defined case.
1674 mode = acl_posix1e_newfilemode(mode, acl);
1676 DIP_SET(ip, i_mode, mode);
1677 ufs_sync_acl_from_inode(ip, acl);
1684 * Just use the mode as-is.
1687 DIP_SET(ip, i_mode, mode);
1696 * XXX: If we abort now, will Soft Updates notify the extattr
1697 * code that the EAs for the file need to be released?
1699 error = VOP_SETACL(tvp, ACL_TYPE_ACCESS, acl, cred, td);
1706 * XXX: This should not happen, as EOPNOTSUPP above was
1707 * supposed to free acl.
1709 printf("ufs_makeinode: VOP_GETACL() but no "
1711 /* panic("ufs_makeinode: VOP_GETACL() but no "
1726 ufs_do_nfs4_acl_inheritance(struct vnode *dvp, struct vnode *tvp,
1727 mode_t child_mode, struct ucred *cred, struct thread *td)
1730 struct acl *parent_aclp, *child_aclp;
1732 parent_aclp = acl_alloc(M_WAITOK);
1733 child_aclp = acl_alloc(M_WAITOK | M_ZERO);
1735 error = ufs_getacl_nfs4_internal(dvp, parent_aclp, td);
1738 acl_nfs4_compute_inherited_acl(parent_aclp, child_aclp,
1739 child_mode, VTOI(tvp)->i_uid, tvp->v_type == VDIR);
1740 error = ufs_setacl_nfs4_internal(tvp, child_aclp, td);
1744 acl_free(parent_aclp);
1745 acl_free(child_aclp);
1756 struct vop_mkdir_args /* {
1757 struct vnode *a_dvp;
1758 struct vnode **a_vpp;
1759 struct componentname *a_cnp;
1760 struct vattr *a_vap;
1763 struct vnode *dvp = ap->a_dvp;
1764 struct vattr *vap = ap->a_vap;
1765 struct componentname *cnp = ap->a_cnp;
1766 struct inode *ip, *dp;
1769 struct dirtemplate dirtemplate, *dtp;
1770 struct direct newdir;
1775 if ((cnp->cn_flags & HASBUF) == 0)
1776 panic("ufs_mkdir: no name");
1779 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1783 dmode = vap->va_mode & 0777;
1786 * Must simulate part of ufs_makeinode here to acquire the inode,
1787 * but not have it entered in the parent directory. The entry is
1788 * made later after writing "." and ".." entries.
1790 error = UFS_VALLOC(dvp, dmode, cnp->cn_cred, &tvp);
1794 ip->i_gid = dp->i_gid;
1795 DIP_SET(ip, i_gid, dp->i_gid);
1799 struct ucred ucred, *ucp;
1804 * If we are hacking owners here, (only do this where told to)
1805 * and we are not giving it TO root, (would subvert quotas)
1806 * then go ahead and give it to the other user.
1807 * The new directory also inherits the SUID bit.
1808 * If user's UID and dir UID are the same,
1809 * 'give it away' so that the SUID is still forced on.
1811 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
1812 (dp->i_mode & ISUID) && dp->i_uid) {
1814 ip->i_uid = dp->i_uid;
1815 DIP_SET(ip, i_uid, dp->i_uid);
1817 if (dp->i_uid != cnp->cn_cred->cr_uid) {
1819 * Make sure the correct user gets charged
1821 * Make a dummy credential for the victim.
1822 * XXX This seems to never be accessed out of
1823 * our context so a stack variable is ok.
1825 refcount_init(&ucred.cr_ref, 1);
1826 ucred.cr_uid = ip->i_uid;
1827 ucred.cr_ngroups = 1;
1828 ucred.cr_groups = &ucred_group;
1829 ucred.cr_groups[0] = dp->i_gid;
1834 ip->i_uid = cnp->cn_cred->cr_uid;
1835 DIP_SET(ip, i_uid, ip->i_uid);
1838 if ((error = getinoquota(ip)) ||
1839 (error = chkiq(ip, 1, ucp, 0))) {
1840 if (DOINGSOFTDEP(tvp))
1841 softdep_revert_link(dp, ip);
1842 UFS_VFREE(tvp, ip->i_number, dmode);
1848 #else /* !SUIDDIR */
1849 ip->i_uid = cnp->cn_cred->cr_uid;
1850 DIP_SET(ip, i_uid, ip->i_uid);
1852 if ((error = getinoquota(ip)) ||
1853 (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
1854 if (DOINGSOFTDEP(tvp))
1855 softdep_revert_link(dp, ip);
1856 UFS_VFREE(tvp, ip->i_number, dmode);
1861 #endif /* !SUIDDIR */
1862 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
1864 DIP_SET(ip, i_mode, dmode);
1865 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */
1868 DIP_SET(ip, i_nlink, 2);
1870 if (cnp->cn_flags & ISWHITEOUT) {
1871 ip->i_flags |= UF_OPAQUE;
1872 DIP_SET(ip, i_flags, ip->i_flags);
1876 * Bump link count in parent directory to reflect work done below.
1877 * Should be done before reference is created so cleanup is
1878 * possible if we crash.
1882 DIP_SET(dp, i_nlink, dp->i_nlink);
1883 dp->i_flag |= IN_CHANGE;
1884 if (DOINGSOFTDEP(dvp))
1885 softdep_setup_mkdir(dp, ip);
1886 error = UFS_UPDATE(dvp, !(DOINGSOFTDEP(dvp) | DOINGASYNC(dvp)));
1890 if (dvp->v_mount->mnt_flag & MNT_MULTILABEL) {
1891 error = mac_vnode_create_extattr(cnp->cn_cred, dvp->v_mount,
1898 if (dvp->v_mount->mnt_flag & MNT_ACLS) {
1899 error = ufs_do_posix1e_acl_inheritance_dir(dvp, tvp, dmode,
1900 cnp->cn_cred, cnp->cn_thread);
1903 } else if (dvp->v_mount->mnt_flag & MNT_NFS4ACLS) {
1904 error = ufs_do_nfs4_acl_inheritance(dvp, tvp, dmode,
1905 cnp->cn_cred, cnp->cn_thread);
1909 #endif /* !UFS_ACL */
1912 * Initialize directory with "." and ".." from static template.
1914 if (dvp->v_mount->mnt_maxsymlinklen > 0)
1915 dtp = &mastertemplate;
1917 dtp = (struct dirtemplate *)&omastertemplate;
1919 dirtemplate.dot_ino = ip->i_number;
1920 dirtemplate.dotdot_ino = dp->i_number;
1921 if ((error = UFS_BALLOC(tvp, (off_t)0, DIRBLKSIZ, cnp->cn_cred,
1922 BA_CLRBUF, &bp)) != 0)
1924 ip->i_size = DIRBLKSIZ;
1925 DIP_SET(ip, i_size, DIRBLKSIZ);
1926 ip->i_flag |= IN_CHANGE | IN_UPDATE;
1927 vnode_pager_setsize(tvp, (u_long)ip->i_size);
1928 bcopy((caddr_t)&dirtemplate, (caddr_t)bp->b_data, sizeof dirtemplate);
1929 if (DOINGSOFTDEP(tvp)) {
1931 * Ensure that the entire newly allocated block is a
1932 * valid directory so that future growth within the
1933 * block does not have to ensure that the block is
1934 * written before the inode.
1937 while (blkoff < bp->b_bcount) {
1939 (bp->b_data + blkoff))->d_reclen = DIRBLKSIZ;
1940 blkoff += DIRBLKSIZ;
1943 if ((error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) |
1944 DOINGASYNC(tvp)))) != 0) {
1949 * Directory set up, now install its entry in the parent directory.
1951 * If we are not doing soft dependencies, then we must write out the
1952 * buffer containing the new directory body before entering the new
1953 * name in the parent. If we are doing soft dependencies, then the
1954 * buffer containing the new directory body will be passed to and
1955 * released in the soft dependency code after the code has attached
1956 * an appropriate ordering dependency to the buffer which ensures that
1957 * the buffer is written before the new name is written in the parent.
1959 if (DOINGASYNC(dvp))
1961 else if (!DOINGSOFTDEP(dvp) && ((error = bwrite(bp))))
1963 ufs_makedirentry(ip, cnp, &newdir);
1964 error = ufs_direnter(dvp, tvp, &newdir, cnp, bp, 0);
1972 DIP_SET(dp, i_nlink, dp->i_nlink);
1973 dp->i_flag |= IN_CHANGE;
1975 * No need to do an explicit VOP_TRUNCATE here, vrele will
1976 * do this for us because we set the link count to 0.
1980 DIP_SET(ip, i_nlink, 0);
1981 ip->i_flag |= IN_CHANGE;
1982 if (DOINGSOFTDEP(tvp))
1983 softdep_revert_mkdir(dp, ip);
1992 * Rmdir system call.
1996 struct vop_rmdir_args /* {
1997 struct vnode *a_dvp;
1999 struct componentname *a_cnp;
2002 struct vnode *vp = ap->a_vp;
2003 struct vnode *dvp = ap->a_dvp;
2004 struct componentname *cnp = ap->a_cnp;
2005 struct inode *ip, *dp;
2012 * Do not remove a directory that is in the process of being renamed.
2013 * Verify the directory is empty (and valid). Rmdir ".." will not be
2014 * valid since ".." will contain a reference to the current directory
2015 * and thus be non-empty. Do not allow the removal of mounted on
2016 * directories (this can happen when an NFS exported filesystem
2017 * tries to remove a locally mounted on directory).
2020 if (ip->i_effnlink < 2) {
2024 if (dp->i_effnlink < 3)
2025 panic("ufs_dirrem: Bad link count %d on parent",
2027 if (!ufs_dirempty(ip, dp->i_number, cnp->cn_cred)) {
2031 if ((dp->i_flags & APPEND)
2032 || (ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))) {
2036 if (vp->v_mountedhere != 0) {
2041 ufs_gjournal_orphan(vp);
2044 * Delete reference to directory before purging
2045 * inode. If we crash in between, the directory
2046 * will be reattached to lost+found,
2050 if (DOINGSOFTDEP(vp))
2051 softdep_setup_rmdir(dp, ip);
2052 error = ufs_dirremove(dvp, ip, cnp->cn_flags, 1);
2056 if (DOINGSOFTDEP(vp))
2057 softdep_revert_rmdir(dp, ip);
2062 * The only stuff left in the directory is "." and "..". The "."
2063 * reference is inconsequential since we are quashing it. The soft
2064 * dependency code will arrange to do these operations after
2065 * the parent directory entry has been deleted on disk, so
2066 * when running with that code we avoid doing them now.
2068 if (!DOINGSOFTDEP(vp)) {
2070 DIP_SET(dp, i_nlink, dp->i_nlink);
2071 dp->i_flag |= IN_CHANGE;
2072 error = UFS_UPDATE(dvp, 0);
2074 DIP_SET(ip, i_nlink, ip->i_nlink);
2075 ip->i_flag |= IN_CHANGE;
2079 /* Kill any active hash; i_effnlink == 0, so it will not come back. */
2080 if (ip->i_dirhash != NULL)
2081 ufsdirhash_free(ip);
2088 * symlink -- make a symbolic link
2092 struct vop_symlink_args /* {
2093 struct vnode *a_dvp;
2094 struct vnode **a_vpp;
2095 struct componentname *a_cnp;
2096 struct vattr *a_vap;
2100 struct vnode *vp, **vpp = ap->a_vpp;
2104 error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
2109 len = strlen(ap->a_target);
2110 if (len < vp->v_mount->mnt_maxsymlinklen) {
2112 bcopy(ap->a_target, SHORTLINK(ip), len);
2114 DIP_SET(ip, i_size, len);
2115 ip->i_flag |= IN_CHANGE | IN_UPDATE;
2116 error = UFS_UPDATE(vp, 0);
2118 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
2119 UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
2120 ap->a_cnp->cn_cred, NOCRED, NULL, NULL);
2127 * Vnode op for reading directories.
2131 struct vop_readdir_args /* {
2134 struct ucred *a_cred;
2140 struct vnode *vp = ap->a_vp;
2141 struct uio *uio = ap->a_uio;
2144 struct direct *dp, *edp;
2146 struct dirent dstdp;
2147 off_t offset, startoffset;
2148 size_t readcnt, skipcnt;
2153 if (uio->uio_offset < 0)
2156 if (ip->i_effnlink == 0)
2158 if (ap->a_ncookies != NULL) {
2159 ncookies = uio->uio_resid;
2160 if (uio->uio_offset >= ip->i_size)
2162 else if (ip->i_size - uio->uio_offset < ncookies)
2163 ncookies = ip->i_size - uio->uio_offset;
2164 ncookies = ncookies / (offsetof(struct direct, d_name) + 4) + 1;
2165 cookies = malloc(ncookies * sizeof(*cookies), M_TEMP, M_WAITOK);
2166 *ap->a_ncookies = ncookies;
2167 *ap->a_cookies = cookies;
2172 offset = startoffset = uio->uio_offset;
2173 startresid = uio->uio_resid;
2175 while (error == 0 && uio->uio_resid > 0 &&
2176 uio->uio_offset < ip->i_size) {
2177 error = ffs_blkatoff(vp, uio->uio_offset, NULL, &bp);
2180 if (bp->b_offset + bp->b_bcount > ip->i_size)
2181 readcnt = ip->i_size - bp->b_offset;
2183 readcnt = bp->b_bcount;
2184 skipcnt = (size_t)(uio->uio_offset - bp->b_offset) &
2185 ~(size_t)(DIRBLKSIZ - 1);
2186 offset = bp->b_offset + skipcnt;
2187 dp = (struct direct *)&bp->b_data[skipcnt];
2188 edp = (struct direct *)&bp->b_data[readcnt];
2189 while (error == 0 && uio->uio_resid > 0 && dp < edp) {
2190 if (dp->d_reclen <= offsetof(struct direct, d_name) ||
2191 (caddr_t)dp + dp->d_reclen > (caddr_t)edp) {
2195 #if BYTE_ORDER == LITTLE_ENDIAN
2196 /* Old filesystem format. */
2197 if (vp->v_mount->mnt_maxsymlinklen <= 0) {
2198 dstdp.d_namlen = dp->d_type;
2199 dstdp.d_type = dp->d_namlen;
2203 dstdp.d_namlen = dp->d_namlen;
2204 dstdp.d_type = dp->d_type;
2206 if (offsetof(struct direct, d_name) + dstdp.d_namlen >
2211 if (offset < startoffset || dp->d_ino == 0)
2213 dstdp.d_fileno = dp->d_ino;
2214 dstdp.d_reclen = GENERIC_DIRSIZ(&dstdp);
2215 bcopy(dp->d_name, dstdp.d_name, dstdp.d_namlen);
2216 dstdp.d_name[dstdp.d_namlen] = '\0';
2217 if (dstdp.d_reclen > uio->uio_resid) {
2218 if (uio->uio_resid == startresid)
2221 error = EJUSTRETURN;
2225 error = uiomove((caddr_t)&dstdp, dstdp.d_reclen, uio);
2228 if (cookies != NULL) {
2229 KASSERT(ncookies > 0,
2230 ("ufs_readdir: cookies buffer too small"));
2231 *cookies = offset + dp->d_reclen;
2236 offset += dp->d_reclen;
2237 dp = (struct direct *)((caddr_t)dp + dp->d_reclen);
2240 uio->uio_offset = offset;
2242 /* We need to correct uio_offset. */
2243 uio->uio_offset = offset;
2244 if (error == EJUSTRETURN)
2246 if (ap->a_ncookies != NULL) {
2248 ap->a_ncookies -= ncookies;
2250 free(*ap->a_cookies, M_TEMP);
2251 *ap->a_ncookies = 0;
2252 *ap->a_cookies = NULL;
2255 if (error == 0 && ap->a_eofflag)
2256 *ap->a_eofflag = ip->i_size <= uio->uio_offset;
2261 * Return target name of a symbolic link
2265 struct vop_readlink_args /* {
2268 struct ucred *a_cred;
2271 struct vnode *vp = ap->a_vp;
2272 struct inode *ip = VTOI(vp);
2276 if ((isize < vp->v_mount->mnt_maxsymlinklen) ||
2277 DIP(ip, i_blocks) == 0) { /* XXX - for old fastlink support */
2278 return (uiomove(SHORTLINK(ip), isize, ap->a_uio));
2280 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
2284 * Calculate the logical to physical mapping if not done already,
2285 * then call the device strategy routine.
2287 * In order to be able to swap to a file, the ufs_bmaparray() operation may not
2288 * deadlock on memory. See ufs_bmap() for details.
2292 struct vop_strategy_args /* {
2297 struct buf *bp = ap->a_bp;
2298 struct vnode *vp = ap->a_vp;
2305 if (bp->b_blkno == bp->b_lblkno) {
2306 error = ufs_bmaparray(vp, bp->b_lblkno, &blkno, bp, NULL, NULL);
2307 bp->b_blkno = blkno;
2309 bp->b_error = error;
2310 bp->b_ioflags |= BIO_ERROR;
2314 if ((long)bp->b_blkno == -1)
2317 if ((long)bp->b_blkno == -1) {
2321 bp->b_iooffset = dbtob(bp->b_blkno);
2322 bo = ip->i_umbufobj;
2323 BO_STRATEGY(bo, bp);
2328 * Print out the contents of an inode.
2332 struct vop_print_args /* {
2336 struct vnode *vp = ap->a_vp;
2337 struct inode *ip = VTOI(vp);
2339 printf("\tino %lu, on dev %s", (u_long)ip->i_number,
2340 devtoname(ip->i_dev));
2341 if (vp->v_type == VFIFO)
2348 * Close wrapper for fifos.
2350 * Update the times on the inode then do device close.
2354 struct vop_close_args /* {
2357 struct ucred *a_cred;
2358 struct thread *a_td;
2361 struct vnode *vp = ap->a_vp;
2365 usecount = vp->v_usecount;
2367 ufs_itimes_locked(vp);
2369 return (fifo_specops.vop_close(ap));
2373 * Kqfilter wrapper for fifos.
2375 * Fall through to ufs kqfilter routines if needed
2378 ufsfifo_kqfilter(ap)
2379 struct vop_kqfilter_args *ap;
2383 error = fifo_specops.vop_kqfilter(ap);
2385 error = vfs_kqfilter(ap);
2390 * Return POSIX pathconf information applicable to fifos.
2393 ufsfifo_pathconf(ap)
2394 struct vop_pathconf_args /* {
2401 switch (ap->a_name) {
2402 case _PC_ACL_EXTENDED:
2404 case _PC_ACL_PATH_MAX:
2405 case _PC_MAC_PRESENT:
2406 return (ufs_pathconf(ap));
2408 return (fifo_specops.vop_pathconf(ap));
2414 * Return POSIX pathconf information applicable to ufs filesystems.
2418 struct vop_pathconf_args /* {
2427 switch (ap->a_name) {
2429 *ap->a_retval = LINK_MAX;
2432 *ap->a_retval = NAME_MAX;
2435 *ap->a_retval = PATH_MAX;
2438 *ap->a_retval = PIPE_BUF;
2440 case _PC_CHOWN_RESTRICTED:
2446 case _PC_ACL_EXTENDED:
2448 if (ap->a_vp->v_mount->mnt_flag & MNT_ACLS)
2459 if (ap->a_vp->v_mount->mnt_flag & MNT_NFS4ACLS)
2468 case _PC_ACL_PATH_MAX:
2470 if (ap->a_vp->v_mount->mnt_flag & (MNT_ACLS | MNT_NFS4ACLS))
2471 *ap->a_retval = ACL_MAX_ENTRIES;
2478 case _PC_MAC_PRESENT:
2480 if (ap->a_vp->v_mount->mnt_flag & MNT_MULTILABEL)
2488 case _PC_MIN_HOLE_SIZE:
2489 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2492 /* _PC_ASYNC_IO should have been handled by upper layers. */
2493 KASSERT(0, ("_PC_ASYNC_IO should not get here"));
2502 case _PC_ALLOC_SIZE_MIN:
2503 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_bsize;
2505 case _PC_FILESIZEBITS:
2508 case _PC_REC_INCR_XFER_SIZE:
2509 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2511 case _PC_REC_MAX_XFER_SIZE:
2512 *ap->a_retval = -1; /* means ``unlimited'' */
2514 case _PC_REC_MIN_XFER_SIZE:
2515 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2517 case _PC_REC_XFER_ALIGN:
2518 *ap->a_retval = PAGE_SIZE;
2520 case _PC_SYMLINK_MAX:
2521 *ap->a_retval = MAXPATHLEN;
2532 * Initialize the vnode associated with a new inode, handle aliased
2536 ufs_vinit(mntp, fifoops, vpp)
2538 struct vop_vector *fifoops;
2546 vp->v_type = IFTOVT(ip->i_mode);
2547 if (vp->v_type == VFIFO)
2549 ASSERT_VOP_LOCKED(vp, "ufs_vinit");
2550 if (ip->i_number == ROOTINO)
2551 vp->v_vflag |= VV_ROOT;
2557 * Allocate a new inode.
2558 * Vnode dvp must be locked.
2561 ufs_makeinode(mode, dvp, vpp, cnp)
2565 struct componentname *cnp;
2567 struct inode *ip, *pdir;
2568 struct direct newdir;
2574 if ((cnp->cn_flags & HASBUF) == 0)
2575 panic("ufs_makeinode: no name");
2578 if ((mode & IFMT) == 0)
2581 if (VTOI(dvp)->i_effnlink < 2)
2582 panic("ufs_makeinode: Bad link count %d on parent",
2583 VTOI(dvp)->i_effnlink);
2584 error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
2588 ip->i_gid = pdir->i_gid;
2589 DIP_SET(ip, i_gid, pdir->i_gid);
2593 struct ucred ucred, *ucp;
2598 * If we are not the owner of the directory,
2599 * and we are hacking owners here, (only do this where told to)
2600 * and we are not giving it TO root, (would subvert quotas)
2601 * then go ahead and give it to the other user.
2602 * Note that this drops off the execute bits for security.
2604 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
2605 (pdir->i_mode & ISUID) &&
2606 (pdir->i_uid != cnp->cn_cred->cr_uid) && pdir->i_uid) {
2607 ip->i_uid = pdir->i_uid;
2608 DIP_SET(ip, i_uid, ip->i_uid);
2612 * Make sure the correct user gets charged
2614 * Quickly knock up a dummy credential for the victim.
2615 * XXX This seems to never be accessed out of our
2616 * context so a stack variable is ok.
2618 refcount_init(&ucred.cr_ref, 1);
2619 ucred.cr_uid = ip->i_uid;
2620 ucred.cr_ngroups = 1;
2621 ucred.cr_groups = &ucred_group;
2622 ucred.cr_groups[0] = pdir->i_gid;
2626 ip->i_uid = cnp->cn_cred->cr_uid;
2627 DIP_SET(ip, i_uid, ip->i_uid);
2631 if ((error = getinoquota(ip)) ||
2632 (error = chkiq(ip, 1, ucp, 0))) {
2633 if (DOINGSOFTDEP(tvp))
2634 softdep_revert_link(pdir, ip);
2635 UFS_VFREE(tvp, ip->i_number, mode);
2641 #else /* !SUIDDIR */
2642 ip->i_uid = cnp->cn_cred->cr_uid;
2643 DIP_SET(ip, i_uid, ip->i_uid);
2645 if ((error = getinoquota(ip)) ||
2646 (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
2647 if (DOINGSOFTDEP(tvp))
2648 softdep_revert_link(pdir, ip);
2649 UFS_VFREE(tvp, ip->i_number, mode);
2654 #endif /* !SUIDDIR */
2655 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
2657 DIP_SET(ip, i_mode, mode);
2658 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
2661 DIP_SET(ip, i_nlink, 1);
2662 if (DOINGSOFTDEP(tvp))
2663 softdep_setup_create(VTOI(dvp), ip);
2664 if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
2665 priv_check_cred(cnp->cn_cred, PRIV_VFS_SETGID, 0)) {
2666 ip->i_mode &= ~ISGID;
2667 DIP_SET(ip, i_mode, ip->i_mode);
2670 if (cnp->cn_flags & ISWHITEOUT) {
2671 ip->i_flags |= UF_OPAQUE;
2672 DIP_SET(ip, i_flags, ip->i_flags);
2676 * Make sure inode goes to disk before directory entry.
2678 error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) | DOINGASYNC(tvp)));
2682 if (dvp->v_mount->mnt_flag & MNT_MULTILABEL) {
2683 error = mac_vnode_create_extattr(cnp->cn_cred, dvp->v_mount,
2690 if (dvp->v_mount->mnt_flag & MNT_ACLS) {
2691 error = ufs_do_posix1e_acl_inheritance_file(dvp, tvp, mode,
2692 cnp->cn_cred, cnp->cn_thread);
2695 } else if (dvp->v_mount->mnt_flag & MNT_NFS4ACLS) {
2696 error = ufs_do_nfs4_acl_inheritance(dvp, tvp, mode,
2697 cnp->cn_cred, cnp->cn_thread);
2701 #endif /* !UFS_ACL */
2702 ufs_makedirentry(ip, cnp, &newdir);
2703 error = ufs_direnter(dvp, tvp, &newdir, cnp, NULL, 0);
2711 * Write error occurred trying to update the inode
2712 * or the directory so must deallocate the inode.
2716 DIP_SET(ip, i_nlink, 0);
2717 ip->i_flag |= IN_CHANGE;
2718 if (DOINGSOFTDEP(tvp))
2719 softdep_revert_create(VTOI(dvp), ip);
2725 ufs_ioctl(struct vop_ioctl_args *ap)
2728 switch (ap->a_command) {
2731 return (vn_bmap_seekhole(ap->a_vp, ap->a_command,
2732 (off_t *)ap->a_data, ap->a_cred));
2738 /* Global vfs data structures for ufs. */
2739 struct vop_vector ufs_vnodeops = {
2740 .vop_default = &default_vnodeops,
2741 .vop_fsync = VOP_PANIC,
2742 .vop_read = VOP_PANIC,
2743 .vop_reallocblks = VOP_PANIC,
2744 .vop_write = VOP_PANIC,
2745 .vop_accessx = ufs_accessx,
2746 .vop_bmap = ufs_bmap,
2747 .vop_cachedlookup = ufs_lookup,
2748 .vop_close = ufs_close,
2749 .vop_create = ufs_create,
2750 .vop_getattr = ufs_getattr,
2751 .vop_inactive = ufs_inactive,
2752 .vop_ioctl = ufs_ioctl,
2753 .vop_link = ufs_link,
2754 .vop_lookup = vfs_cache_lookup,
2755 .vop_markatime = ufs_markatime,
2756 .vop_mkdir = ufs_mkdir,
2757 .vop_mknod = ufs_mknod,
2758 .vop_open = ufs_open,
2759 .vop_pathconf = ufs_pathconf,
2760 .vop_poll = vop_stdpoll,
2761 .vop_print = ufs_print,
2762 .vop_readdir = ufs_readdir,
2763 .vop_readlink = ufs_readlink,
2764 .vop_reclaim = ufs_reclaim,
2765 .vop_remove = ufs_remove,
2766 .vop_rename = ufs_rename,
2767 .vop_rmdir = ufs_rmdir,
2768 .vop_setattr = ufs_setattr,
2770 .vop_setlabel = vop_stdsetlabel_ea,
2772 .vop_strategy = ufs_strategy,
2773 .vop_symlink = ufs_symlink,
2774 .vop_whiteout = ufs_whiteout,
2776 .vop_getextattr = ufs_getextattr,
2777 .vop_deleteextattr = ufs_deleteextattr,
2778 .vop_setextattr = ufs_setextattr,
2781 .vop_getacl = ufs_getacl,
2782 .vop_setacl = ufs_setacl,
2783 .vop_aclcheck = ufs_aclcheck,
2787 struct vop_vector ufs_fifoops = {
2788 .vop_default = &fifo_specops,
2789 .vop_fsync = VOP_PANIC,
2790 .vop_accessx = ufs_accessx,
2791 .vop_close = ufsfifo_close,
2792 .vop_getattr = ufs_getattr,
2793 .vop_inactive = ufs_inactive,
2794 .vop_kqfilter = ufsfifo_kqfilter,
2795 .vop_markatime = ufs_markatime,
2796 .vop_pathconf = ufsfifo_pathconf,
2797 .vop_print = ufs_print,
2798 .vop_read = VOP_PANIC,
2799 .vop_reclaim = ufs_reclaim,
2800 .vop_setattr = ufs_setattr,
2802 .vop_setlabel = vop_stdsetlabel_ea,
2804 .vop_write = VOP_PANIC,
2806 .vop_getextattr = ufs_getextattr,
2807 .vop_deleteextattr = ufs_deleteextattr,
2808 .vop_setextattr = ufs_setextattr,
2811 .vop_getacl = ufs_getacl,
2812 .vop_setacl = ufs_setacl,
2813 .vop_aclcheck = ufs_aclcheck,