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5 * All or some portions of this file are derived from material licensed
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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 *, const char *);
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, "ufs_create");
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, "ufs_mknod");
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 |
630 ((vap->va_vaflags & VA_SYNC) != 0 ? IO_SYNC : 0),
634 if (vap->va_atime.tv_sec != VNOVAL ||
635 vap->va_mtime.tv_sec != VNOVAL ||
636 vap->va_birthtime.tv_sec != VNOVAL) {
637 if (vp->v_mount->mnt_flag & MNT_RDONLY)
639 if ((ip->i_flags & SF_SNAPSHOT) != 0)
641 error = vn_utimes_perm(vp, vap, cred, td);
644 ip->i_flag |= IN_CHANGE | IN_MODIFIED;
645 if (vap->va_atime.tv_sec != VNOVAL) {
646 ip->i_flag &= ~IN_ACCESS;
647 DIP_SET(ip, i_atime, vap->va_atime.tv_sec);
648 DIP_SET(ip, i_atimensec, vap->va_atime.tv_nsec);
650 if (vap->va_mtime.tv_sec != VNOVAL) {
651 ip->i_flag &= ~IN_UPDATE;
652 DIP_SET(ip, i_mtime, vap->va_mtime.tv_sec);
653 DIP_SET(ip, i_mtimensec, vap->va_mtime.tv_nsec);
655 if (vap->va_birthtime.tv_sec != VNOVAL &&
656 ip->i_ump->um_fstype == UFS2) {
657 ip->i_din2->di_birthtime = vap->va_birthtime.tv_sec;
658 ip->i_din2->di_birthnsec = vap->va_birthtime.tv_nsec;
660 error = UFS_UPDATE(vp, 0);
665 if (vap->va_mode != (mode_t)VNOVAL) {
666 if (vp->v_mount->mnt_flag & MNT_RDONLY)
668 if ((ip->i_flags & SF_SNAPSHOT) != 0 && (vap->va_mode &
669 (S_IXUSR | S_IWUSR | S_IXGRP | S_IWGRP | S_IXOTH | S_IWOTH)))
671 error = ufs_chmod(vp, (int)vap->va_mode, cred, td);
678 ufs_update_nfs4_acl_after_mode_change(struct vnode *vp, int mode,
679 int file_owner_id, struct ucred *cred, struct thread *td)
684 aclp = acl_alloc(M_WAITOK);
685 error = ufs_getacl_nfs4_internal(vp, aclp, td);
687 * We don't have to handle EOPNOTSUPP here, as the filesystem claims
693 acl_nfs4_sync_acl_from_mode(aclp, mode, file_owner_id);
694 error = ufs_setacl_nfs4_internal(vp, aclp, td);
703 * Mark this file's access time for update for vfs_mark_atime(). This
704 * is called from execve() and mmap().
708 struct vop_markatime_args /* {
712 struct vnode *vp = ap->a_vp;
713 struct inode *ip = VTOI(vp);
716 ip->i_flag |= IN_ACCESS;
719 * XXXKIB No UFS_UPDATE(ap->a_vp, 0) there.
725 * Change the mode on a file.
726 * Inode must be locked before calling.
729 ufs_chmod(vp, mode, cred, td)
735 struct inode *ip = VTOI(vp);
739 * To modify the permissions on a file, must possess VADMIN
742 if ((error = VOP_ACCESSX(vp, VWRITE_ACL, cred, td)))
745 * Privileged processes may set the sticky bit on non-directories,
746 * as well as set the setgid bit on a file with a group that the
747 * process is not a member of. Both of these are allowed in
750 if (vp->v_type != VDIR && (mode & S_ISTXT)) {
751 if (priv_check_cred(cred, PRIV_VFS_STICKYFILE, 0))
754 if (!groupmember(ip->i_gid, cred) && (mode & ISGID)) {
755 error = priv_check_cred(cred, PRIV_VFS_SETGID, 0);
761 * Deny setting setuid if we are not the file owner.
763 if ((mode & ISUID) && ip->i_uid != cred->cr_uid) {
764 error = priv_check_cred(cred, PRIV_VFS_ADMIN, 0);
769 ip->i_mode &= ~ALLPERMS;
770 ip->i_mode |= (mode & ALLPERMS);
771 DIP_SET(ip, i_mode, ip->i_mode);
772 ip->i_flag |= IN_CHANGE;
774 if ((vp->v_mount->mnt_flag & MNT_NFS4ACLS) != 0)
775 error = ufs_update_nfs4_acl_after_mode_change(vp, mode, ip->i_uid, cred, td);
777 if (error == 0 && (ip->i_flag & IN_CHANGE) != 0)
778 error = UFS_UPDATE(vp, 0);
784 * Perform chown operation on inode ip;
785 * inode must be locked prior to call.
788 ufs_chown(vp, uid, gid, cred, td)
795 struct inode *ip = VTOI(vp);
804 if (uid == (uid_t)VNOVAL)
806 if (gid == (gid_t)VNOVAL)
809 * To modify the ownership of a file, must possess VADMIN for that
812 if ((error = VOP_ACCESSX(vp, VWRITE_OWNER, cred, td)))
815 * To change the owner of a file, or change the group of a file to a
816 * group of which we are not a member, the caller must have
819 if (((uid != ip->i_uid && uid != cred->cr_uid) ||
820 (gid != ip->i_gid && !groupmember(gid, cred))) &&
821 (error = priv_check_cred(cred, PRIV_VFS_CHOWN, 0)))
826 if ((error = getinoquota(ip)) != 0)
829 dqrele(vp, ip->i_dquot[USRQUOTA]);
830 ip->i_dquot[USRQUOTA] = NODQUOT;
833 dqrele(vp, ip->i_dquot[GRPQUOTA]);
834 ip->i_dquot[GRPQUOTA] = NODQUOT;
836 change = DIP(ip, i_blocks);
837 (void) chkdq(ip, -change, cred, CHOWN);
838 (void) chkiq(ip, -1, cred, CHOWN);
839 for (i = 0; i < MAXQUOTAS; i++) {
840 dqrele(vp, ip->i_dquot[i]);
841 ip->i_dquot[i] = NODQUOT;
845 DIP_SET(ip, i_gid, gid);
847 DIP_SET(ip, i_uid, uid);
849 if ((error = getinoquota(ip)) == 0) {
851 dqrele(vp, ip->i_dquot[USRQUOTA]);
852 ip->i_dquot[USRQUOTA] = NODQUOT;
855 dqrele(vp, ip->i_dquot[GRPQUOTA]);
856 ip->i_dquot[GRPQUOTA] = NODQUOT;
858 if ((error = chkdq(ip, change, cred, CHOWN)) == 0) {
859 if ((error = chkiq(ip, 1, cred, CHOWN)) == 0)
862 (void) chkdq(ip, -change, cred, CHOWN|FORCE);
864 for (i = 0; i < MAXQUOTAS; i++) {
865 dqrele(vp, ip->i_dquot[i]);
866 ip->i_dquot[i] = NODQUOT;
870 DIP_SET(ip, i_gid, ogid);
872 DIP_SET(ip, i_uid, ouid);
873 if (getinoquota(ip) == 0) {
875 dqrele(vp, ip->i_dquot[USRQUOTA]);
876 ip->i_dquot[USRQUOTA] = NODQUOT;
879 dqrele(vp, ip->i_dquot[GRPQUOTA]);
880 ip->i_dquot[GRPQUOTA] = NODQUOT;
882 (void) chkdq(ip, change, cred, FORCE|CHOWN);
883 (void) chkiq(ip, 1, cred, FORCE|CHOWN);
884 (void) getinoquota(ip);
889 panic("ufs_chown: lost quota");
891 ip->i_flag |= IN_CHANGE;
892 if ((ip->i_mode & (ISUID | ISGID)) && (ouid != uid || ogid != gid)) {
893 if (priv_check_cred(cred, PRIV_VFS_RETAINSUGID, 0)) {
894 ip->i_mode &= ~(ISUID | ISGID);
895 DIP_SET(ip, i_mode, ip->i_mode);
898 error = UFS_UPDATE(vp, 0);
904 struct vop_remove_args /* {
907 struct componentname *a_cnp;
911 struct vnode *vp = ap->a_vp;
912 struct vnode *dvp = ap->a_dvp;
918 if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
919 (VTOI(dvp)->i_flags & APPEND)) {
924 ufs_gjournal_orphan(vp);
926 error = ufs_dirremove(dvp, ip, ap->a_cnp->cn_flags, 0);
927 if (ip->i_nlink <= 0)
928 vp->v_vflag |= VV_NOSYNC;
929 if ((ip->i_flags & SF_SNAPSHOT) != 0) {
931 * Avoid deadlock where another thread is trying to
932 * update the inodeblock for dvp and is waiting on
933 * snaplk. Temporary unlock the vnode lock for the
934 * unlinked file and sync the directory. This should
935 * allow vput() of the directory to not block later on
936 * while holding the snapshot vnode locked, assuming
937 * that the directory hasn't been unlinked too.
940 (void) VOP_FSYNC(dvp, MNT_WAIT, td);
941 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
948 print_bad_link_count(const char *funcname, struct vnode *dvp)
953 uprintf("%s: Bad link count %d on parent inode %d in file system %s\n",
954 funcname, dip->i_effnlink, dip->i_number,
955 dvp->v_mount->mnt_stat.f_mntonname);
963 struct vop_link_args /* {
964 struct vnode *a_tdvp;
966 struct componentname *a_cnp;
969 struct vnode *vp = ap->a_vp;
970 struct vnode *tdvp = ap->a_tdvp;
971 struct componentname *cnp = ap->a_cnp;
973 struct direct newdir;
977 if ((cnp->cn_flags & HASBUF) == 0)
978 panic("ufs_link: no name");
980 if (VTOI(tdvp)->i_effnlink < 2) {
981 print_bad_link_count("ufs_link", tdvp);
986 if ((nlink_t)ip->i_nlink >= LINK_MAX) {
991 * The file may have been removed after namei droped the original
994 if (ip->i_effnlink == 0) {
998 if (ip->i_flags & (IMMUTABLE | APPEND)) {
1004 DIP_SET(ip, i_nlink, ip->i_nlink);
1005 ip->i_flag |= IN_CHANGE;
1006 if (DOINGSOFTDEP(vp))
1007 softdep_setup_link(VTOI(tdvp), ip);
1008 error = UFS_UPDATE(vp, !(DOINGSOFTDEP(vp) | DOINGASYNC(vp)));
1010 ufs_makedirentry(ip, cnp, &newdir);
1011 error = ufs_direnter(tdvp, vp, &newdir, cnp, NULL, 0);
1017 DIP_SET(ip, i_nlink, ip->i_nlink);
1018 ip->i_flag |= IN_CHANGE;
1019 if (DOINGSOFTDEP(vp))
1020 softdep_revert_link(VTOI(tdvp), ip);
1027 * whiteout vnode call
1031 struct vop_whiteout_args /* {
1032 struct vnode *a_dvp;
1033 struct componentname *a_cnp;
1037 struct vnode *dvp = ap->a_dvp;
1038 struct componentname *cnp = ap->a_cnp;
1039 struct direct newdir;
1042 switch (ap->a_flags) {
1044 /* 4.4 format directories support whiteout operations */
1045 if (dvp->v_mount->mnt_maxsymlinklen > 0)
1047 return (EOPNOTSUPP);
1050 /* create a new directory whiteout */
1052 if ((cnp->cn_flags & SAVENAME) == 0)
1053 panic("ufs_whiteout: missing name");
1054 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
1055 panic("ufs_whiteout: old format filesystem");
1058 newdir.d_ino = WINO;
1059 newdir.d_namlen = cnp->cn_namelen;
1060 bcopy(cnp->cn_nameptr, newdir.d_name, (unsigned)cnp->cn_namelen + 1);
1061 newdir.d_type = DT_WHT;
1062 error = ufs_direnter(dvp, NULL, &newdir, cnp, NULL, 0);
1066 /* remove an existing directory whiteout */
1068 if (dvp->v_mount->mnt_maxsymlinklen <= 0)
1069 panic("ufs_whiteout: old format filesystem");
1072 cnp->cn_flags &= ~DOWHITEOUT;
1073 error = ufs_dirremove(dvp, NULL, cnp->cn_flags, 0);
1076 panic("ufs_whiteout: unknown op");
1081 static volatile int rename_restarts;
1082 SYSCTL_INT(_vfs_ufs, OID_AUTO, rename_restarts, CTLFLAG_RD,
1083 __DEVOLATILE(int *, &rename_restarts), 0,
1084 "Times rename had to restart due to lock contention");
1087 * Rename system call.
1088 * rename("foo", "bar");
1091 * link("foo", "bar");
1093 * but ``atomically''. Can't do full commit without saving state in the
1094 * inode on disk which isn't feasible at this time. Best we can do is
1095 * always guarantee the target exists.
1097 * Basic algorithm is:
1099 * 1) Bump link count on source while we're linking it to the
1100 * target. This also ensure the inode won't be deleted out
1101 * from underneath us while we work (it may be truncated by
1102 * a concurrent `trunc' or `open' for creation).
1103 * 2) Link source to destination. If destination already exists,
1105 * 3) Unlink source reference to inode if still around. If a
1106 * directory was moved and the parent of the destination
1107 * is different from the source, patch the ".." entry in the
1112 struct vop_rename_args /* {
1113 struct vnode *a_fdvp;
1114 struct vnode *a_fvp;
1115 struct componentname *a_fcnp;
1116 struct vnode *a_tdvp;
1117 struct vnode *a_tvp;
1118 struct componentname *a_tcnp;
1121 struct vnode *tvp = ap->a_tvp;
1122 struct vnode *tdvp = ap->a_tdvp;
1123 struct vnode *fvp = ap->a_fvp;
1124 struct vnode *fdvp = ap->a_fdvp;
1126 struct componentname *tcnp = ap->a_tcnp;
1127 struct componentname *fcnp = ap->a_fcnp;
1128 struct thread *td = fcnp->cn_thread;
1129 struct inode *fip, *tip, *tdp, *fdp;
1130 struct direct newdir;
1132 int doingdirectory, newparent;
1138 if ((tcnp->cn_flags & HASBUF) == 0 ||
1139 (fcnp->cn_flags & HASBUF) == 0)
1140 panic("ufs_rename: no name");
1144 VOP_UNLOCK(tdvp, 0);
1145 if (tvp && tvp != tdvp)
1148 * Check for cross-device rename.
1150 if ((fvp->v_mount != tdvp->v_mount) ||
1151 (tvp && (fvp->v_mount != tvp->v_mount))) {
1158 * We need to acquire 2 to 4 locks depending on whether tvp is NULL
1159 * and fdvp and tdvp are the same directory. Subsequently we need
1160 * to double-check all paths and in the directory rename case we
1161 * need to verify that we are not creating a directory loop. To
1162 * handle this we acquire all but fdvp using non-blocking
1163 * acquisitions. If we fail to acquire any lock in the path we will
1164 * drop all held locks, acquire the new lock in a blocking fashion,
1165 * and then release it and restart the rename. This acquire/release
1166 * step ensures that we do not spin on a lock waiting for release.
1168 error = vn_lock(fdvp, LK_EXCLUSIVE);
1171 if (vn_lock(tdvp, LK_EXCLUSIVE | LK_NOWAIT) != 0) {
1172 VOP_UNLOCK(fdvp, 0);
1173 error = vn_lock(tdvp, LK_EXCLUSIVE);
1176 VOP_UNLOCK(tdvp, 0);
1177 atomic_add_int(&rename_restarts, 1);
1181 * Re-resolve fvp to be certain it still exists and fetch the
1184 error = ufs_lookup_ino(fdvp, NULL, fcnp, &ino);
1186 VOP_UNLOCK(fdvp, 0);
1187 VOP_UNLOCK(tdvp, 0);
1190 error = VFS_VGET(mp, ino, LK_EXCLUSIVE | LK_NOWAIT, &nvp);
1192 VOP_UNLOCK(fdvp, 0);
1193 VOP_UNLOCK(tdvp, 0);
1196 error = VFS_VGET(mp, ino, LK_EXCLUSIVE, &nvp);
1202 atomic_add_int(&rename_restarts, 1);
1208 * Re-resolve tvp and acquire the vnode lock if present.
1210 error = ufs_lookup_ino(tdvp, NULL, tcnp, &ino);
1211 if (error != 0 && error != EJUSTRETURN) {
1212 VOP_UNLOCK(fdvp, 0);
1213 VOP_UNLOCK(tdvp, 0);
1218 * If tvp disappeared we just carry on.
1220 if (error == EJUSTRETURN && tvp != NULL) {
1225 * Get the tvp ino if the lookup succeeded. We may have to restart
1226 * if the non-blocking acquire fails.
1230 error = VFS_VGET(mp, ino, LK_EXCLUSIVE | LK_NOWAIT, &nvp);
1235 VOP_UNLOCK(fdvp, 0);
1236 VOP_UNLOCK(tdvp, 0);
1240 error = VFS_VGET(mp, ino, LK_EXCLUSIVE, &nvp);
1244 atomic_add_int(&rename_restarts, 1);
1254 if (tvp && ((VTOI(tvp)->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
1255 (VTOI(tdvp)->i_flags & APPEND))) {
1260 * Renaming a file to itself has no effect. The upper layers should
1261 * not call us in that case. However, things could change after
1262 * we drop the locks above.
1270 ino = fip->i_number;
1271 if (fip->i_nlink >= LINK_MAX) {
1275 if ((fip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))
1276 || (fdp->i_flags & APPEND)) {
1280 if ((fip->i_mode & IFMT) == IFDIR) {
1282 * Avoid ".", "..", and aliases of "." for obvious reasons.
1284 if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
1286 (fcnp->cn_flags | tcnp->cn_flags) & ISDOTDOT) {
1290 if (fdp->i_number != tdp->i_number)
1291 newparent = tdp->i_number;
1294 if ((fvp->v_type == VDIR && fvp->v_mountedhere != NULL) ||
1295 (tvp != NULL && tvp->v_type == VDIR &&
1296 tvp->v_mountedhere != NULL)) {
1302 * If ".." must be changed (ie the directory gets a new
1303 * parent) then the source directory must not be in the
1304 * directory hierarchy above the target, as this would
1305 * orphan everything below the source directory. Also
1306 * the user must have write permission in the source so
1307 * as to be able to change "..".
1309 if (doingdirectory && newparent) {
1310 error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_thread);
1313 error = ufs_checkpath(ino, fdp->i_number, tdp, tcnp->cn_cred,
1316 * We encountered a lock that we have to wait for. Unlock
1317 * everything else and VGET before restarting.
1320 VOP_UNLOCK(fdvp, 0);
1322 VOP_UNLOCK(tdvp, 0);
1325 error = VFS_VGET(mp, ino, LK_SHARED, &nvp);
1328 atomic_add_int(&rename_restarts, 1);
1333 if ((tcnp->cn_flags & SAVESTART) == 0)
1334 panic("ufs_rename: lost to startdir");
1336 if (fip->i_effnlink == 0 || fdp->i_effnlink == 0 ||
1337 tdp->i_effnlink == 0)
1338 panic("Bad effnlink fip %p, fdp %p, tdp %p", fip, fdp, tdp);
1341 * 1) Bump link count while we're moving stuff
1342 * around. If we crash somewhere before
1343 * completing our work, the link count
1344 * may be wrong, but correctable.
1348 DIP_SET(fip, i_nlink, fip->i_nlink);
1349 fip->i_flag |= IN_CHANGE;
1350 if (DOINGSOFTDEP(fvp))
1351 softdep_setup_link(tdp, fip);
1352 error = UFS_UPDATE(fvp, !(DOINGSOFTDEP(fvp) | DOINGASYNC(fvp)));
1357 * 2) If target doesn't exist, link the target
1358 * to the source and unlink the source.
1359 * Otherwise, rewrite the target directory
1360 * entry to reference the source inode and
1361 * expunge the original entry's existence.
1364 if (tdp->i_dev != fip->i_dev)
1365 panic("ufs_rename: EXDEV");
1366 if (doingdirectory && newparent) {
1368 * Account for ".." in new directory.
1369 * When source and destination have the same
1370 * parent we don't adjust the link count. The
1371 * actual link modification is completed when
1372 * .. is rewritten below.
1374 if ((nlink_t)tdp->i_nlink >= LINK_MAX) {
1379 ufs_makedirentry(fip, tcnp, &newdir);
1380 error = ufs_direnter(tdvp, NULL, &newdir, tcnp, NULL, 1);
1383 /* Setup tdvp for directory compaction if needed. */
1384 if (tdp->i_count && tdp->i_endoff &&
1385 tdp->i_endoff < tdp->i_size)
1386 endoff = tdp->i_endoff;
1388 if (tip->i_dev != tdp->i_dev || tip->i_dev != fip->i_dev)
1389 panic("ufs_rename: EXDEV");
1391 * Short circuit rename(foo, foo).
1393 if (tip->i_number == fip->i_number)
1394 panic("ufs_rename: same file");
1396 * If the parent directory is "sticky", then the caller
1397 * must possess VADMIN for the parent directory, or the
1398 * destination of the rename. This implements append-only
1401 if ((tdp->i_mode & S_ISTXT) &&
1402 VOP_ACCESS(tdvp, VADMIN, tcnp->cn_cred, td) &&
1403 VOP_ACCESS(tvp, VADMIN, tcnp->cn_cred, td)) {
1408 * Target must be empty if a directory and have no links
1409 * to it. Also, ensure source and target are compatible
1410 * (both directories, or both not directories).
1412 if ((tip->i_mode & IFMT) == IFDIR) {
1413 if ((tip->i_effnlink > 2) ||
1414 !ufs_dirempty(tip, tdp->i_number, tcnp->cn_cred)) {
1418 if (!doingdirectory) {
1423 } else if (doingdirectory) {
1427 if (doingdirectory) {
1430 if (DOINGSOFTDEP(tdvp))
1431 softdep_change_linkcnt(tdp);
1434 if (DOINGSOFTDEP(tvp))
1435 softdep_change_linkcnt(tip);
1437 error = ufs_dirrewrite(tdp, tip, fip->i_number,
1438 IFTODT(fip->i_mode),
1439 (doingdirectory && newparent) ? newparent : doingdirectory);
1441 if (doingdirectory) {
1444 if (DOINGSOFTDEP(tdvp))
1445 softdep_change_linkcnt(tdp);
1448 if (DOINGSOFTDEP(tvp))
1449 softdep_change_linkcnt(tip);
1452 if (doingdirectory && !DOINGSOFTDEP(tvp)) {
1454 * The only stuff left in the directory is "."
1455 * and "..". The "." reference is inconsequential
1456 * since we are quashing it. We have removed the "."
1457 * reference and the reference in the parent directory,
1458 * but there may be other hard links. The soft
1459 * dependency code will arrange to do these operations
1460 * after the parent directory entry has been deleted on
1461 * disk, so when running with that code we avoid doing
1466 DIP_SET(tdp, i_nlink, tdp->i_nlink);
1467 tdp->i_flag |= IN_CHANGE;
1470 DIP_SET(tip, i_nlink, tip->i_nlink);
1471 tip->i_flag |= IN_CHANGE;
1476 * 3) Unlink the source. We have to resolve the path again to
1477 * fixup the directory offset and count for ufs_dirremove.
1480 error = ufs_lookup_ino(fdvp, NULL, fcnp, &ino);
1482 panic("ufs_rename: from entry went away!");
1483 if (ino != fip->i_number)
1484 panic("ufs_rename: ino mismatch %ju != %ju\n",
1485 (uintmax_t)ino, (uintmax_t)fip->i_number);
1488 * If the source is a directory with a
1489 * new parent, the link count of the old
1490 * parent directory must be decremented
1491 * and ".." set to point to the new parent.
1493 if (doingdirectory && newparent) {
1495 * If tip exists we simply use its link, otherwise we must
1501 DIP_SET(tdp, i_nlink, tdp->i_nlink);
1502 tdp->i_flag |= IN_CHANGE;
1503 if (DOINGSOFTDEP(tdvp))
1504 softdep_setup_dotdot_link(tdp, fip);
1505 error = UFS_UPDATE(tdvp, !(DOINGSOFTDEP(tdvp) |
1507 /* Don't go to bad here as the new link exists. */
1510 } else if (DOINGSUJ(tdvp))
1511 /* Journal must account for each new link. */
1512 softdep_setup_dotdot_link(tdp, fip);
1513 fip->i_offset = mastertemplate.dot_reclen;
1514 ufs_dirrewrite(fip, fdp, newparent, DT_DIR, 0);
1517 error = ufs_dirremove(fdvp, fip, fcnp->cn_flags, 0);
1519 * The kern_renameat() looks up the fvp using the DELETE flag, which
1520 * causes the removal of the name cache entry for fvp.
1521 * As the relookup of the fvp is done in two steps:
1522 * ufs_lookup_ino() and then VFS_VGET(), another thread might do a
1523 * normal lookup of the from name just before the VFS_VGET() call,
1524 * causing the cache entry to be re-instantiated.
1526 * The same issue also applies to tvp if it exists as
1527 * otherwise we may have a stale name cache entry for the new
1528 * name that references the old i-node if it has other links
1529 * or open file descriptors.
1534 cache_purge_negative(tdvp);
1542 * If compaction or fsync was requested do it now that other locks
1543 * are no longer needed.
1545 if (error == 0 && endoff != 0) {
1546 error = UFS_TRUNCATE(tdvp, endoff, IO_NORMAL | IO_SYNC,
1549 vn_printf(tdvp, "ufs_rename: failed to truncate "
1552 else if (tdp->i_dirhash != NULL)
1553 ufsdirhash_dirtrunc(tdp, endoff);
1556 * Even if the directory compaction failed, rename was
1557 * succesful. Do not propagate a UFS_TRUNCATE() error
1562 if (error == 0 && tdp->i_flag & IN_NEEDSYNC)
1563 error = VOP_FSYNC(tdvp, MNT_WAIT, td);
1570 DIP_SET(fip, i_nlink, fip->i_nlink);
1571 fip->i_flag |= IN_CHANGE;
1572 if (DOINGSOFTDEP(fvp))
1573 softdep_revert_link(tdp, fip);
1588 ufs_do_posix1e_acl_inheritance_dir(struct vnode *dvp, struct vnode *tvp,
1589 mode_t dmode, struct ucred *cred, struct thread *td)
1592 struct inode *ip = VTOI(tvp);
1593 struct acl *dacl, *acl;
1595 acl = acl_alloc(M_WAITOK);
1596 dacl = acl_alloc(M_WAITOK);
1599 * Retrieve default ACL from parent, if any.
1601 error = VOP_GETACL(dvp, ACL_TYPE_DEFAULT, acl, cred, td);
1605 * Retrieved a default ACL, so merge mode and ACL if
1606 * necessary. If the ACL is empty, fall through to
1607 * the "not defined or available" case.
1609 if (acl->acl_cnt != 0) {
1610 dmode = acl_posix1e_newfilemode(dmode, acl);
1612 DIP_SET(ip, i_mode, dmode);
1614 ufs_sync_acl_from_inode(ip, acl);
1621 * Just use the mode as-is.
1624 DIP_SET(ip, i_mode, dmode);
1633 * XXX: If we abort now, will Soft Updates notify the extattr
1634 * code that the EAs for the file need to be released?
1636 error = VOP_SETACL(tvp, ACL_TYPE_ACCESS, acl, cred, td);
1638 error = VOP_SETACL(tvp, ACL_TYPE_DEFAULT, dacl, cred, td);
1645 * XXX: This should not happen, as EOPNOTSUPP above
1646 * was supposed to free acl.
1648 printf("ufs_mkdir: VOP_GETACL() but no VOP_SETACL()\n");
1650 panic("ufs_mkdir: VOP_GETACL() but no VOP_SETACL()");
1666 ufs_do_posix1e_acl_inheritance_file(struct vnode *dvp, struct vnode *tvp,
1667 mode_t mode, struct ucred *cred, struct thread *td)
1670 struct inode *ip = VTOI(tvp);
1673 acl = acl_alloc(M_WAITOK);
1676 * Retrieve default ACL for parent, if any.
1678 error = VOP_GETACL(dvp, ACL_TYPE_DEFAULT, acl, cred, td);
1682 * Retrieved a default ACL, so merge mode and ACL if
1685 if (acl->acl_cnt != 0) {
1687 * Two possible ways for default ACL to not
1688 * be present. First, the EA can be
1689 * undefined, or second, the default ACL can
1690 * be blank. If it's blank, fall through to
1691 * the it's not defined case.
1693 mode = acl_posix1e_newfilemode(mode, acl);
1695 DIP_SET(ip, i_mode, mode);
1696 ufs_sync_acl_from_inode(ip, acl);
1703 * Just use the mode as-is.
1706 DIP_SET(ip, i_mode, mode);
1715 * XXX: If we abort now, will Soft Updates notify the extattr
1716 * code that the EAs for the file need to be released?
1718 error = VOP_SETACL(tvp, ACL_TYPE_ACCESS, acl, cred, td);
1725 * XXX: This should not happen, as EOPNOTSUPP above was
1726 * supposed to free acl.
1728 printf("ufs_do_posix1e_acl_inheritance_file: VOP_GETACL() "
1729 "but no VOP_SETACL()\n");
1730 /* panic("ufs_do_posix1e_acl_inheritance_file: VOP_GETACL() "
1731 "but no VOP_SETACL()"); */
1745 ufs_do_nfs4_acl_inheritance(struct vnode *dvp, struct vnode *tvp,
1746 mode_t child_mode, struct ucred *cred, struct thread *td)
1749 struct acl *parent_aclp, *child_aclp;
1751 parent_aclp = acl_alloc(M_WAITOK);
1752 child_aclp = acl_alloc(M_WAITOK | M_ZERO);
1754 error = ufs_getacl_nfs4_internal(dvp, parent_aclp, td);
1757 acl_nfs4_compute_inherited_acl(parent_aclp, child_aclp,
1758 child_mode, VTOI(tvp)->i_uid, tvp->v_type == VDIR);
1759 error = ufs_setacl_nfs4_internal(tvp, child_aclp, td);
1763 acl_free(parent_aclp);
1764 acl_free(child_aclp);
1775 struct vop_mkdir_args /* {
1776 struct vnode *a_dvp;
1777 struct vnode **a_vpp;
1778 struct componentname *a_cnp;
1779 struct vattr *a_vap;
1782 struct vnode *dvp = ap->a_dvp;
1783 struct vattr *vap = ap->a_vap;
1784 struct componentname *cnp = ap->a_cnp;
1785 struct inode *ip, *dp;
1788 struct dirtemplate dirtemplate, *dtp;
1789 struct direct newdir;
1794 if ((cnp->cn_flags & HASBUF) == 0)
1795 panic("ufs_mkdir: no name");
1798 if ((nlink_t)dp->i_nlink >= LINK_MAX) {
1802 dmode = vap->va_mode & 0777;
1805 * Must simulate part of ufs_makeinode here to acquire the inode,
1806 * but not have it entered in the parent directory. The entry is
1807 * made later after writing "." and ".." entries.
1809 if (dp->i_effnlink < 2) {
1810 print_bad_link_count("ufs_mkdir", dvp);
1814 error = UFS_VALLOC(dvp, dmode, cnp->cn_cred, &tvp);
1818 ip->i_gid = dp->i_gid;
1819 DIP_SET(ip, i_gid, dp->i_gid);
1823 struct ucred ucred, *ucp;
1828 * If we are hacking owners here, (only do this where told to)
1829 * and we are not giving it TO root, (would subvert quotas)
1830 * then go ahead and give it to the other user.
1831 * The new directory also inherits the SUID bit.
1832 * If user's UID and dir UID are the same,
1833 * 'give it away' so that the SUID is still forced on.
1835 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
1836 (dp->i_mode & ISUID) && dp->i_uid) {
1838 ip->i_uid = dp->i_uid;
1839 DIP_SET(ip, i_uid, dp->i_uid);
1841 if (dp->i_uid != cnp->cn_cred->cr_uid) {
1843 * Make sure the correct user gets charged
1845 * Make a dummy credential for the victim.
1846 * XXX This seems to never be accessed out of
1847 * our context so a stack variable is ok.
1849 refcount_init(&ucred.cr_ref, 1);
1850 ucred.cr_uid = ip->i_uid;
1851 ucred.cr_ngroups = 1;
1852 ucred.cr_groups = &ucred_group;
1853 ucred.cr_groups[0] = dp->i_gid;
1858 ip->i_uid = cnp->cn_cred->cr_uid;
1859 DIP_SET(ip, i_uid, ip->i_uid);
1862 if ((error = getinoquota(ip)) ||
1863 (error = chkiq(ip, 1, ucp, 0))) {
1864 if (DOINGSOFTDEP(tvp))
1865 softdep_revert_link(dp, ip);
1866 UFS_VFREE(tvp, ip->i_number, dmode);
1872 #else /* !SUIDDIR */
1873 ip->i_uid = cnp->cn_cred->cr_uid;
1874 DIP_SET(ip, i_uid, ip->i_uid);
1876 if ((error = getinoquota(ip)) ||
1877 (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
1878 if (DOINGSOFTDEP(tvp))
1879 softdep_revert_link(dp, ip);
1880 UFS_VFREE(tvp, ip->i_number, dmode);
1885 #endif /* !SUIDDIR */
1886 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
1888 DIP_SET(ip, i_mode, dmode);
1889 tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */
1892 DIP_SET(ip, i_nlink, 2);
1894 if (cnp->cn_flags & ISWHITEOUT) {
1895 ip->i_flags |= UF_OPAQUE;
1896 DIP_SET(ip, i_flags, ip->i_flags);
1900 * Bump link count in parent directory to reflect work done below.
1901 * Should be done before reference is created so cleanup is
1902 * possible if we crash.
1906 DIP_SET(dp, i_nlink, dp->i_nlink);
1907 dp->i_flag |= IN_CHANGE;
1908 if (DOINGSOFTDEP(dvp))
1909 softdep_setup_mkdir(dp, ip);
1910 error = UFS_UPDATE(dvp, !(DOINGSOFTDEP(dvp) | DOINGASYNC(dvp)));
1914 if (dvp->v_mount->mnt_flag & MNT_MULTILABEL) {
1915 error = mac_vnode_create_extattr(cnp->cn_cred, dvp->v_mount,
1922 if (dvp->v_mount->mnt_flag & MNT_ACLS) {
1923 error = ufs_do_posix1e_acl_inheritance_dir(dvp, tvp, dmode,
1924 cnp->cn_cred, cnp->cn_thread);
1927 } else if (dvp->v_mount->mnt_flag & MNT_NFS4ACLS) {
1928 error = ufs_do_nfs4_acl_inheritance(dvp, tvp, dmode,
1929 cnp->cn_cred, cnp->cn_thread);
1933 #endif /* !UFS_ACL */
1936 * Initialize directory with "." and ".." from static template.
1938 if (dvp->v_mount->mnt_maxsymlinklen > 0)
1939 dtp = &mastertemplate;
1941 dtp = (struct dirtemplate *)&omastertemplate;
1943 dirtemplate.dot_ino = ip->i_number;
1944 dirtemplate.dotdot_ino = dp->i_number;
1945 vnode_pager_setsize(tvp, DIRBLKSIZ);
1946 if ((error = UFS_BALLOC(tvp, (off_t)0, DIRBLKSIZ, cnp->cn_cred,
1947 BA_CLRBUF, &bp)) != 0)
1949 ip->i_size = DIRBLKSIZ;
1950 DIP_SET(ip, i_size, DIRBLKSIZ);
1951 ip->i_flag |= IN_CHANGE | IN_UPDATE;
1952 bcopy((caddr_t)&dirtemplate, (caddr_t)bp->b_data, sizeof dirtemplate);
1953 if (DOINGSOFTDEP(tvp)) {
1955 * Ensure that the entire newly allocated block is a
1956 * valid directory so that future growth within the
1957 * block does not have to ensure that the block is
1958 * written before the inode.
1961 while (blkoff < bp->b_bcount) {
1963 (bp->b_data + blkoff))->d_reclen = DIRBLKSIZ;
1964 blkoff += DIRBLKSIZ;
1967 if ((error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) |
1968 DOINGASYNC(tvp)))) != 0) {
1973 * Directory set up, now install its entry in the parent directory.
1975 * If we are not doing soft dependencies, then we must write out the
1976 * buffer containing the new directory body before entering the new
1977 * name in the parent. If we are doing soft dependencies, then the
1978 * buffer containing the new directory body will be passed to and
1979 * released in the soft dependency code after the code has attached
1980 * an appropriate ordering dependency to the buffer which ensures that
1981 * the buffer is written before the new name is written in the parent.
1983 if (DOINGASYNC(dvp))
1985 else if (!DOINGSOFTDEP(dvp) && ((error = bwrite(bp))))
1987 ufs_makedirentry(ip, cnp, &newdir);
1988 error = ufs_direnter(dvp, tvp, &newdir, cnp, bp, 0);
1996 DIP_SET(dp, i_nlink, dp->i_nlink);
1997 dp->i_flag |= IN_CHANGE;
1999 * No need to do an explicit VOP_TRUNCATE here, vrele will
2000 * do this for us because we set the link count to 0.
2004 DIP_SET(ip, i_nlink, 0);
2005 ip->i_flag |= IN_CHANGE;
2006 if (DOINGSOFTDEP(tvp))
2007 softdep_revert_mkdir(dp, ip);
2016 * Rmdir system call.
2020 struct vop_rmdir_args /* {
2021 struct vnode *a_dvp;
2023 struct componentname *a_cnp;
2026 struct vnode *vp = ap->a_vp;
2027 struct vnode *dvp = ap->a_dvp;
2028 struct componentname *cnp = ap->a_cnp;
2029 struct inode *ip, *dp;
2036 * Do not remove a directory that is in the process of being renamed.
2037 * Verify the directory is empty (and valid). Rmdir ".." will not be
2038 * valid since ".." will contain a reference to the current directory
2039 * and thus be non-empty. Do not allow the removal of mounted on
2040 * directories (this can happen when an NFS exported filesystem
2041 * tries to remove a locally mounted on directory).
2044 if (dp->i_effnlink <= 2) {
2045 if (dp->i_effnlink == 2)
2046 print_bad_link_count("ufs_rmdir", dvp);
2050 if (!ufs_dirempty(ip, dp->i_number, cnp->cn_cred)) {
2054 if ((dp->i_flags & APPEND)
2055 || (ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))) {
2059 if (vp->v_mountedhere != 0) {
2064 ufs_gjournal_orphan(vp);
2067 * Delete reference to directory before purging
2068 * inode. If we crash in between, the directory
2069 * will be reattached to lost+found,
2073 if (DOINGSOFTDEP(vp))
2074 softdep_setup_rmdir(dp, ip);
2075 error = ufs_dirremove(dvp, ip, cnp->cn_flags, 1);
2079 if (DOINGSOFTDEP(vp))
2080 softdep_revert_rmdir(dp, ip);
2085 * The only stuff left in the directory is "." and "..". The "."
2086 * reference is inconsequential since we are quashing it. The soft
2087 * dependency code will arrange to do these operations after
2088 * the parent directory entry has been deleted on disk, so
2089 * when running with that code we avoid doing them now.
2091 if (!DOINGSOFTDEP(vp)) {
2093 DIP_SET(dp, i_nlink, dp->i_nlink);
2094 dp->i_flag |= IN_CHANGE;
2095 error = UFS_UPDATE(dvp, 0);
2097 DIP_SET(ip, i_nlink, ip->i_nlink);
2098 ip->i_flag |= IN_CHANGE;
2102 /* Kill any active hash; i_effnlink == 0, so it will not come back. */
2103 if (ip->i_dirhash != NULL)
2104 ufsdirhash_free(ip);
2111 * symlink -- make a symbolic link
2115 struct vop_symlink_args /* {
2116 struct vnode *a_dvp;
2117 struct vnode **a_vpp;
2118 struct componentname *a_cnp;
2119 struct vattr *a_vap;
2123 struct vnode *vp, **vpp = ap->a_vpp;
2127 error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
2128 vpp, ap->a_cnp, "ufs_symlink");
2132 len = strlen(ap->a_target);
2133 if (len < vp->v_mount->mnt_maxsymlinklen) {
2135 bcopy(ap->a_target, SHORTLINK(ip), len);
2137 DIP_SET(ip, i_size, len);
2138 ip->i_flag |= IN_CHANGE | IN_UPDATE;
2139 error = UFS_UPDATE(vp, 0);
2141 error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
2142 UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
2143 ap->a_cnp->cn_cred, NOCRED, NULL, NULL);
2150 * Vnode op for reading directories.
2154 struct vop_readdir_args /* {
2157 struct ucred *a_cred;
2163 struct vnode *vp = ap->a_vp;
2164 struct uio *uio = ap->a_uio;
2167 struct direct *dp, *edp;
2169 struct dirent dstdp;
2170 off_t offset, startoffset;
2171 size_t readcnt, skipcnt;
2176 if (uio->uio_offset < 0)
2179 if (ip->i_effnlink == 0)
2181 if (ap->a_ncookies != NULL) {
2182 ncookies = uio->uio_resid;
2183 if (uio->uio_offset >= ip->i_size)
2185 else if (ip->i_size - uio->uio_offset < ncookies)
2186 ncookies = ip->i_size - uio->uio_offset;
2187 ncookies = ncookies / (offsetof(struct direct, d_name) + 4) + 1;
2188 cookies = malloc(ncookies * sizeof(*cookies), M_TEMP, M_WAITOK);
2189 *ap->a_ncookies = ncookies;
2190 *ap->a_cookies = cookies;
2195 offset = startoffset = uio->uio_offset;
2196 startresid = uio->uio_resid;
2198 while (error == 0 && uio->uio_resid > 0 &&
2199 uio->uio_offset < ip->i_size) {
2200 error = ffs_blkatoff(vp, uio->uio_offset, NULL, &bp);
2203 if (bp->b_offset + bp->b_bcount > ip->i_size)
2204 readcnt = ip->i_size - bp->b_offset;
2206 readcnt = bp->b_bcount;
2207 skipcnt = (size_t)(uio->uio_offset - bp->b_offset) &
2208 ~(size_t)(DIRBLKSIZ - 1);
2209 offset = bp->b_offset + skipcnt;
2210 dp = (struct direct *)&bp->b_data[skipcnt];
2211 edp = (struct direct *)&bp->b_data[readcnt];
2212 while (error == 0 && uio->uio_resid > 0 && dp < edp) {
2213 if (dp->d_reclen <= offsetof(struct direct, d_name) ||
2214 (caddr_t)dp + dp->d_reclen > (caddr_t)edp) {
2218 #if BYTE_ORDER == LITTLE_ENDIAN
2219 /* Old filesystem format. */
2220 if (vp->v_mount->mnt_maxsymlinklen <= 0) {
2221 dstdp.d_namlen = dp->d_type;
2222 dstdp.d_type = dp->d_namlen;
2226 dstdp.d_namlen = dp->d_namlen;
2227 dstdp.d_type = dp->d_type;
2229 if (offsetof(struct direct, d_name) + dstdp.d_namlen >
2234 if (offset < startoffset || dp->d_ino == 0)
2236 dstdp.d_fileno = dp->d_ino;
2237 dstdp.d_reclen = GENERIC_DIRSIZ(&dstdp);
2238 bcopy(dp->d_name, dstdp.d_name, dstdp.d_namlen);
2239 dstdp.d_name[dstdp.d_namlen] = '\0';
2240 if (dstdp.d_reclen > uio->uio_resid) {
2241 if (uio->uio_resid == startresid)
2244 error = EJUSTRETURN;
2248 error = uiomove((caddr_t)&dstdp, dstdp.d_reclen, uio);
2251 if (cookies != NULL) {
2252 KASSERT(ncookies > 0,
2253 ("ufs_readdir: cookies buffer too small"));
2254 *cookies = offset + dp->d_reclen;
2259 offset += dp->d_reclen;
2260 dp = (struct direct *)((caddr_t)dp + dp->d_reclen);
2263 uio->uio_offset = offset;
2265 /* We need to correct uio_offset. */
2266 uio->uio_offset = offset;
2267 if (error == EJUSTRETURN)
2269 if (ap->a_ncookies != NULL) {
2271 ap->a_ncookies -= ncookies;
2273 free(*ap->a_cookies, M_TEMP);
2274 *ap->a_ncookies = 0;
2275 *ap->a_cookies = NULL;
2278 if (error == 0 && ap->a_eofflag)
2279 *ap->a_eofflag = ip->i_size <= uio->uio_offset;
2284 * Return target name of a symbolic link
2288 struct vop_readlink_args /* {
2291 struct ucred *a_cred;
2294 struct vnode *vp = ap->a_vp;
2295 struct inode *ip = VTOI(vp);
2299 if ((isize < vp->v_mount->mnt_maxsymlinklen) ||
2300 DIP(ip, i_blocks) == 0) { /* XXX - for old fastlink support */
2301 return (uiomove(SHORTLINK(ip), isize, ap->a_uio));
2303 return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
2307 * Calculate the logical to physical mapping if not done already,
2308 * then call the device strategy routine.
2310 * In order to be able to swap to a file, the ufs_bmaparray() operation may not
2311 * deadlock on memory. See ufs_bmap() for details.
2315 struct vop_strategy_args /* {
2320 struct buf *bp = ap->a_bp;
2321 struct vnode *vp = ap->a_vp;
2328 if (bp->b_blkno == bp->b_lblkno) {
2329 error = ufs_bmaparray(vp, bp->b_lblkno, &blkno, bp, NULL, NULL);
2330 bp->b_blkno = blkno;
2332 bp->b_error = error;
2333 bp->b_ioflags |= BIO_ERROR;
2337 if ((long)bp->b_blkno == -1)
2340 if ((long)bp->b_blkno == -1) {
2344 bp->b_iooffset = dbtob(bp->b_blkno);
2345 bo = ip->i_umbufobj;
2346 BO_STRATEGY(bo, bp);
2351 * Print out the contents of an inode.
2355 struct vop_print_args /* {
2359 struct vnode *vp = ap->a_vp;
2360 struct inode *ip = VTOI(vp);
2362 printf("\tino %lu, on dev %s", (u_long)ip->i_number,
2363 devtoname(ip->i_dev));
2364 if (vp->v_type == VFIFO)
2371 * Close wrapper for fifos.
2373 * Update the times on the inode then do device close.
2377 struct vop_close_args /* {
2380 struct ucred *a_cred;
2381 struct thread *a_td;
2384 struct vnode *vp = ap->a_vp;
2388 usecount = vp->v_usecount;
2390 ufs_itimes_locked(vp);
2392 return (fifo_specops.vop_close(ap));
2396 * Kqfilter wrapper for fifos.
2398 * Fall through to ufs kqfilter routines if needed
2401 ufsfifo_kqfilter(ap)
2402 struct vop_kqfilter_args *ap;
2406 error = fifo_specops.vop_kqfilter(ap);
2408 error = vfs_kqfilter(ap);
2413 * Return POSIX pathconf information applicable to fifos.
2416 ufsfifo_pathconf(ap)
2417 struct vop_pathconf_args /* {
2424 switch (ap->a_name) {
2425 case _PC_ACL_EXTENDED:
2427 case _PC_ACL_PATH_MAX:
2428 case _PC_MAC_PRESENT:
2429 return (ufs_pathconf(ap));
2431 return (fifo_specops.vop_pathconf(ap));
2437 * Return POSIX pathconf information applicable to ufs filesystems.
2441 struct vop_pathconf_args /* {
2450 switch (ap->a_name) {
2452 *ap->a_retval = LINK_MAX;
2455 *ap->a_retval = NAME_MAX;
2458 *ap->a_retval = PATH_MAX;
2461 *ap->a_retval = PIPE_BUF;
2463 case _PC_CHOWN_RESTRICTED:
2469 case _PC_ACL_EXTENDED:
2471 if (ap->a_vp->v_mount->mnt_flag & MNT_ACLS)
2482 if (ap->a_vp->v_mount->mnt_flag & MNT_NFS4ACLS)
2491 case _PC_ACL_PATH_MAX:
2493 if (ap->a_vp->v_mount->mnt_flag & (MNT_ACLS | MNT_NFS4ACLS))
2494 *ap->a_retval = ACL_MAX_ENTRIES;
2501 case _PC_MAC_PRESENT:
2503 if (ap->a_vp->v_mount->mnt_flag & MNT_MULTILABEL)
2511 case _PC_MIN_HOLE_SIZE:
2512 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2515 /* _PC_ASYNC_IO should have been handled by upper layers. */
2516 KASSERT(0, ("_PC_ASYNC_IO should not get here"));
2525 case _PC_ALLOC_SIZE_MIN:
2526 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_bsize;
2528 case _PC_FILESIZEBITS:
2531 case _PC_REC_INCR_XFER_SIZE:
2532 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2534 case _PC_REC_MAX_XFER_SIZE:
2535 *ap->a_retval = -1; /* means ``unlimited'' */
2537 case _PC_REC_MIN_XFER_SIZE:
2538 *ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
2540 case _PC_REC_XFER_ALIGN:
2541 *ap->a_retval = PAGE_SIZE;
2543 case _PC_SYMLINK_MAX:
2544 *ap->a_retval = MAXPATHLEN;
2555 * Initialize the vnode associated with a new inode, handle aliased
2559 ufs_vinit(mntp, fifoops, vpp)
2561 struct vop_vector *fifoops;
2569 vp->v_type = IFTOVT(ip->i_mode);
2570 if (vp->v_type == VFIFO)
2572 ASSERT_VOP_LOCKED(vp, "ufs_vinit");
2573 if (ip->i_number == ROOTINO)
2574 vp->v_vflag |= VV_ROOT;
2580 * Allocate a new inode.
2581 * Vnode dvp must be locked.
2584 ufs_makeinode(mode, dvp, vpp, cnp, callfunc)
2588 struct componentname *cnp;
2589 const char *callfunc;
2591 struct inode *ip, *pdir;
2592 struct direct newdir;
2598 if ((cnp->cn_flags & HASBUF) == 0)
2599 panic("%s: no name", callfunc);
2602 if ((mode & IFMT) == 0)
2605 if (pdir->i_effnlink < 2) {
2606 print_bad_link_count(callfunc, dvp);
2609 error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
2613 ip->i_gid = pdir->i_gid;
2614 DIP_SET(ip, i_gid, pdir->i_gid);
2618 struct ucred ucred, *ucp;
2623 * If we are not the owner of the directory,
2624 * and we are hacking owners here, (only do this where told to)
2625 * and we are not giving it TO root, (would subvert quotas)
2626 * then go ahead and give it to the other user.
2627 * Note that this drops off the execute bits for security.
2629 if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
2630 (pdir->i_mode & ISUID) &&
2631 (pdir->i_uid != cnp->cn_cred->cr_uid) && pdir->i_uid) {
2632 ip->i_uid = pdir->i_uid;
2633 DIP_SET(ip, i_uid, ip->i_uid);
2637 * Make sure the correct user gets charged
2639 * Quickly knock up a dummy credential for the victim.
2640 * XXX This seems to never be accessed out of our
2641 * context so a stack variable is ok.
2643 refcount_init(&ucred.cr_ref, 1);
2644 ucred.cr_uid = ip->i_uid;
2645 ucred.cr_ngroups = 1;
2646 ucred.cr_groups = &ucred_group;
2647 ucred.cr_groups[0] = pdir->i_gid;
2651 ip->i_uid = cnp->cn_cred->cr_uid;
2652 DIP_SET(ip, i_uid, ip->i_uid);
2656 if ((error = getinoquota(ip)) ||
2657 (error = chkiq(ip, 1, ucp, 0))) {
2658 if (DOINGSOFTDEP(tvp))
2659 softdep_revert_link(pdir, ip);
2660 UFS_VFREE(tvp, ip->i_number, mode);
2666 #else /* !SUIDDIR */
2667 ip->i_uid = cnp->cn_cred->cr_uid;
2668 DIP_SET(ip, i_uid, ip->i_uid);
2670 if ((error = getinoquota(ip)) ||
2671 (error = chkiq(ip, 1, cnp->cn_cred, 0))) {
2672 if (DOINGSOFTDEP(tvp))
2673 softdep_revert_link(pdir, ip);
2674 UFS_VFREE(tvp, ip->i_number, mode);
2679 #endif /* !SUIDDIR */
2680 ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
2682 DIP_SET(ip, i_mode, mode);
2683 tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
2686 DIP_SET(ip, i_nlink, 1);
2687 if (DOINGSOFTDEP(tvp))
2688 softdep_setup_create(VTOI(dvp), ip);
2689 if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
2690 priv_check_cred(cnp->cn_cred, PRIV_VFS_SETGID, 0)) {
2691 ip->i_mode &= ~ISGID;
2692 DIP_SET(ip, i_mode, ip->i_mode);
2695 if (cnp->cn_flags & ISWHITEOUT) {
2696 ip->i_flags |= UF_OPAQUE;
2697 DIP_SET(ip, i_flags, ip->i_flags);
2701 * Make sure inode goes to disk before directory entry.
2703 error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) | DOINGASYNC(tvp)));
2707 if (dvp->v_mount->mnt_flag & MNT_MULTILABEL) {
2708 error = mac_vnode_create_extattr(cnp->cn_cred, dvp->v_mount,
2715 if (dvp->v_mount->mnt_flag & MNT_ACLS) {
2716 error = ufs_do_posix1e_acl_inheritance_file(dvp, tvp, mode,
2717 cnp->cn_cred, cnp->cn_thread);
2720 } else if (dvp->v_mount->mnt_flag & MNT_NFS4ACLS) {
2721 error = ufs_do_nfs4_acl_inheritance(dvp, tvp, mode,
2722 cnp->cn_cred, cnp->cn_thread);
2726 #endif /* !UFS_ACL */
2727 ufs_makedirentry(ip, cnp, &newdir);
2728 error = ufs_direnter(dvp, tvp, &newdir, cnp, NULL, 0);
2736 * Write error occurred trying to update the inode
2737 * or the directory so must deallocate the inode.
2741 DIP_SET(ip, i_nlink, 0);
2742 ip->i_flag |= IN_CHANGE;
2743 if (DOINGSOFTDEP(tvp))
2744 softdep_revert_create(VTOI(dvp), ip);
2750 ufs_ioctl(struct vop_ioctl_args *ap)
2753 switch (ap->a_command) {
2756 return (vn_bmap_seekhole(ap->a_vp, ap->a_command,
2757 (off_t *)ap->a_data, ap->a_cred));
2763 /* Global vfs data structures for ufs. */
2764 struct vop_vector ufs_vnodeops = {
2765 .vop_default = &default_vnodeops,
2766 .vop_fsync = VOP_PANIC,
2767 .vop_read = VOP_PANIC,
2768 .vop_reallocblks = VOP_PANIC,
2769 .vop_write = VOP_PANIC,
2770 .vop_accessx = ufs_accessx,
2771 .vop_bmap = ufs_bmap,
2772 .vop_cachedlookup = ufs_lookup,
2773 .vop_close = ufs_close,
2774 .vop_create = ufs_create,
2775 .vop_getattr = ufs_getattr,
2776 .vop_inactive = ufs_inactive,
2777 .vop_ioctl = ufs_ioctl,
2778 .vop_link = ufs_link,
2779 .vop_lookup = vfs_cache_lookup,
2780 .vop_markatime = ufs_markatime,
2781 .vop_mkdir = ufs_mkdir,
2782 .vop_mknod = ufs_mknod,
2783 .vop_open = ufs_open,
2784 .vop_pathconf = ufs_pathconf,
2785 .vop_poll = vop_stdpoll,
2786 .vop_print = ufs_print,
2787 .vop_readdir = ufs_readdir,
2788 .vop_readlink = ufs_readlink,
2789 .vop_reclaim = ufs_reclaim,
2790 .vop_remove = ufs_remove,
2791 .vop_rename = ufs_rename,
2792 .vop_rmdir = ufs_rmdir,
2793 .vop_setattr = ufs_setattr,
2795 .vop_setlabel = vop_stdsetlabel_ea,
2797 .vop_strategy = ufs_strategy,
2798 .vop_symlink = ufs_symlink,
2799 .vop_whiteout = ufs_whiteout,
2801 .vop_getextattr = ufs_getextattr,
2802 .vop_deleteextattr = ufs_deleteextattr,
2803 .vop_setextattr = ufs_setextattr,
2806 .vop_getacl = ufs_getacl,
2807 .vop_setacl = ufs_setacl,
2808 .vop_aclcheck = ufs_aclcheck,
2812 struct vop_vector ufs_fifoops = {
2813 .vop_default = &fifo_specops,
2814 .vop_fsync = VOP_PANIC,
2815 .vop_accessx = ufs_accessx,
2816 .vop_close = ufsfifo_close,
2817 .vop_getattr = ufs_getattr,
2818 .vop_inactive = ufs_inactive,
2819 .vop_kqfilter = ufsfifo_kqfilter,
2820 .vop_markatime = ufs_markatime,
2821 .vop_pathconf = ufsfifo_pathconf,
2822 .vop_print = ufs_print,
2823 .vop_read = VOP_PANIC,
2824 .vop_reclaim = ufs_reclaim,
2825 .vop_setattr = ufs_setattr,
2827 .vop_setlabel = vop_stdsetlabel_ea,
2829 .vop_write = VOP_PANIC,
2831 .vop_getextattr = ufs_getextattr,
2832 .vop_deleteextattr = ufs_deleteextattr,
2833 .vop_setextattr = ufs_setextattr,
2836 .vop_getacl = ufs_getacl,
2837 .vop_setacl = ufs_setacl,
2838 .vop_aclcheck = ufs_aclcheck,